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HomeMy WebLinkAboutCT 03-02; MARBRISA VILLA 67; AMENDMENT FOR SWQMP - PRIORITY DEVELOPMENT PROJECT STORM WATER QUALITY MANAGEMENT PLAN; 2023-03-29 CITY OF CARLSBAD AMENDMENT FOR SWQMP PRIORITY DEVELOPMENT PROJECT (PDP) STORM WATER QUALITY MANAGEMENT PLAN (SWQMP) FOR MarBrisa – Villa 67 PROJECT ID CT 03-02 DWG #_ 428-9K___ ENGINEER OF WORK: Robert D. Dentino, PE RCE 45629 PREPARED FOR: Grand Pacific Carlsbad, L.P. C/O Grand Pacific Development, INC. 5900 Pasteur Court, Suite 200 Carlsbad, CA 92008 PREPARED BY: EXCEL ENGINEERING 440 State Place Escondido, CA, 92029 (760) 745-8118 DATE: MARCH 29, 2023 Category # Description i ii Units 1 Drainage Basin ID or Name Updated IMP I Updated IMP II unitless 2 85th Percentile 24-hr Storm Depth 0.59 0.59 inches 3 Impervious Surfaces Not Directed to Dispersion Area (C=0.90) 191,006 104,135 sq-ft 4 Semi-Pervious Surfaces Not Serving as Dispersion Area (C=0.30) sq-ft 5 Engineered Pervious Surfaces Not Serving as Dispersion Area (C=0.10) sq-ft 6 Natural Type A Soil Not Serving as Dispersion Area (C=0.10) sq-ft 7 Natural Type B Soil Not Serving as Dispersion Area (C=0.14) 137,183 88,569 sq-ft 8 Natural Type C Soil Not Serving as Dispersion Area (C=0.23) sq-ft 9 Natural Type D Soil Not Serving as Dispersion Area (C=0.30) sq-ft 10 Does Tributary Incorporate Dispersion, Tree Wells, and/or Rain Barrels? No No yes/no 11 Impervious Surfaces Directed to Dispersion Area per SD-B (Ci=0.90) sq-ft 12 Semi-Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.30) sq-ft 13 Engineered Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.10) sq-ft 14 Natural Type A Soil Serving as Dispersion Area per SD-B (Ci=0.10) sq-ft 15 Natural Type B Soil Serving as Dispersion Area per SD-B (Ci=0.14) sq-ft 16 Natural Type C Soil Serving as Dispersion Area per SD-B (Ci=0.23) sq-ft 17 Natural Type D Soil Serving as Dispersion Area per SD-B (Ci=0.30) sq-ft 18 Number of Tree Wells Proposed per SD-A # 19 Average Mature Tree Canopy Diameter ft 20 Number of Rain Barrels Proposed per SD-E # 21 Average Rain Barrel Size gal 22 Total Tributary Area 328,189 192,704 sq-ft 23 Initial Runoff Factor for Standard Drainage Areas 0.58 0.55 unitless 24 Initial Runoff Factor for Dispersed & Dispersion Areas 0.00 0.00 unitless 25 Initial Weighted Runoff Factor 0.58 0.55 unitless 26 Initial Design Capture Volume 9,359 5,211 cubic-feet 27 Total Impervious Area Dispersed to Pervious Surface 0 0 sq-ft 28 Total Pervious Dispersion Area 0 0 sq-ft 29 Ratio of Dispersed Impervious Area to Pervious Dispersion Area n/a n/a ratio 30 Adjustment Factor for Dispersed & Dispersion Areas 1.00 1.00 ratio 31 Runoff Factor After Dispersion Techniques 0.58 0.55 unitless 32 Design Capture Volume After Dispersion Techniques 9,359 5,211 cubic-feet 33 Total Tree Well Volume Reduction 0 0 cubic-feet 34 Total Rain Barrel Volume Reduction 0 0 cubic-feet 35 Final Adjusted Runoff Factor 0.58 0.55 unitless 36 Final Effective Tributary Area 190,350 105,987 sq-ft 37 Initial Design Capture Volume Retained by Site Design Elements 0 0 cubic-feet 38 Final Design Capture Volume Tributary to BMP 9,359 5,211 cubic-feet False False Automated Worksheet B.1: Calculation of Design Capture Volume (V2.0) Dispersion Area, Tree Well & Rain Barrel Inputs (Optional) Standard Drainage Basin Inputs Results Tree & Barrel Adjustments Initial Runoff Factor Calculation Dispersion Area Adjustments No Warning Messages Category # Description i ii Units 1 Drainage Basin ID or Name Updated IMP I Updated IMP II sq-ft 2 Design Infiltration Rate Recommended 0.100 0.100 in/hr 3 Design Capture Volume Tributary to BMP 9,359 5,211 cubic-feet 4 Is BMP Vegetated or Unvegetated? Vegetated Vegetated unitless 5 Is BMP Impermeably Lined or Unlined? Unlined Unlined unitless 6 Does BMP Have an Underdrain? Underdrain Underdrain unitless 7 Does BMP Utilize Standard or Specialized Media? Standard Standard unitless 8 Provided Surface Area 8,177 4,900 sq-ft 9 Provided Surface Ponding Depth 6 6 inches 10 Provided Soil Media Thickness 18 18 inches 11 Provided Gravel Thickness (Total Thickness) 0 0 inches 12 Underdrain Offset 3 3 inches 13 Diameter of Underdrain or Hydromod Orifice (Select Smallest) 2.00 2.00 inches 14 Specialized Soil Media Filtration Rate in/hr 15 Specialized Soil Media Pore Space for Retention unitless 16 Specialized Soil Media Pore Space for Biofiltration unitless 17 Specialized Gravel Media Pore Space unitless 18 Volume Infiltrated Over 6 Hour Storm 409 245 cubic-feet 19 Ponding Pore Space Available for Retention 0.00 0.00 unitless 20 Soil Media Pore Space Available for Retention 0.05 0.05 unitless 21 Gravel Pore Space Available for Retention (Above Underdrain) 0.00 0.00 unitless 22 Gravel Pore Space Available for Retention (Below Underdrain) 0.40 0.40 unitless 23 Effective Retention Depth 2.10 2.10 inches 24 Fraction of DCV Retained (Independent of Drawdown Time) 0.20 0.21 ratio 25 Calculated Retention Storage Drawdown Time 21 21 hours 26 Efficacy of Retention Processes 0.44 0.46 ratio 27 Volume Retained by BMP (Considering Drawdown Time) 4,132 2,375 cubic-feet 28 Design Capture Volume Remaining for Biofiltration 5,227 2,836 cubic-feet 29 Max Hydromod Flow Rate through Underdrain 0.1356 0.1356 cfs 30 Max Soil Filtration Rate Allowed by Underdrain Orifice 0.72 1.20 in/hr 31 Soil Media Filtration Rate per Specifications 5.00 5.00 in/hr 32 Soil Media Filtration Rate to be used for Sizing 0.72 1.20 in/hr 33 Depth Biofiltered Over 6 Hour Storm 4.30 7.17 inches 34 Ponding Pore Space Available for Biofiltration 1.00 1.00 unitless 35 Soil Media Pore Space Available for Biofiltration 0.20 0.20 unitless 36 Gravel Pore Space Available for Biofiltration (Above Underdrain) 0.40 0.40 unitless 37 Effective Depth of Biofiltration Storage 8.40 8.40 inches 38 Drawdown Time for Surface Ponding 7 5 hours 39 Drawdown Time for Effective Biofiltration Depth 10 6 hours 40 Total Depth Biofiltered 12.70 15.57 inches 41 Option 1 - Biofilter 1.50 DCV: Target Volume 7,841 4,255 cubic-feet 42 Option 1 - Provided Biofiltration Volume 7,841 4,255 cubic-feet 43 Option 2 - Store 0.75 DCV: Target Volume 3,921 2,127 cubic-feet 44 Option 2 - Provided Storage Volume 3,921 2,127 cubic-feet 45 Portion of Biofiltration Performance Standard Satisfied 1.00 1.00 ratio 46 Do Site Design Elements and BMPs Satisfy Annual Retention Requirements? Yes Yes yes/no 47 Overall Portion of Performance Standard Satisfied (BMP Efficacy Factor) 1.00 1.00 ratio 48 Deficit of Effectively Treated Stormwater 0 0 cubic-feet Biofiltration Calculations False False False False Result False False No Warning Messages Retention Calculations Automated Worksheet B.3: BMP Performance (V2.0) False False BMP Inputs Excel Engineering Q:\14\14100\GPIP\GP3\Report\report parts\Statistics Reports\Outfall-A\Statistics Results-Outfall-A.pdf 3/29/2023 4:01:14 PM software version: 1.0.7318.27220 STATISTICS ANALYSIS OF THE SWMM FILES FOR: DISCHARGE NODE: OUTFALL-A ANALYSIS DETAILS Stream Susceptibility to Channel Erosion: High Low Flow Threshold = (0.1)Q2 = (0.1)7.870 = Qlf = 0.7870 (cfs) Flow Control Upper Limit = Q10 = 11.980 (cfs) Assumed time between storms (hours): 24 PRE-DEVELOPMENT SWMM FILE SWMM file name: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out SWMM file time stamp: 1/16/2020 2:53:23 PM Selected Node to Analyze: Outfall-A POST-DEVELOPMENT MITIGATED SWMM FILE SWMM file name: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out SWMM file time stamp: 3/29/2023 1:24:33 PM Selected Node to Analyze: Outfall-A MITIGATED CONDITIONS RESULTS For the Mitigated Conditions: Peak Flow Conditions PASS Flow Duration Conditions PASS The Mitigated Conditions peak flow frequency curve is composed of 449 points. Of the points, 1 point(s) are above the flow control upper limit (Q10 = 11.98 (cfs)), 269 point(s) are below the low flow threshold value (Qlf = 0.787 (cfs)). Of the points within the flow control range (Qlf to Q10), 179 point(s) have a lower peak flow rate than pre- development conditions. These points all pass. There are no points that failed, therefore the peak flow requirements have been met. The Mitigated Conditions flow duration curve is composed of 100 flow bins (points). Each point represents the number of hours where the discharge was equal to or greater than the discharge value, but less than the next greater discharge value. Within the flow control range, comparing the post-development flow duration curve to the pre-development flow duration curve, 98 post-development curve point(s) have a lower flow duration than pre-development conditions, and 2 point(s) have a flow duration that exceeds the pre-development flow duration by less than 10%. These points all pass. There are no points that failed, therefore the flow duration requirements have been met. Excel Engineering Development of the Peak Flow Statistics The peak flow statistics are developed directly from the binary output file produced by the SWMM program. The site is modeled for the Pre-Development, and Post-Development-Mitigated conditions. For each of these files a specific time period differentiating distinct storms is chosen. The SWMM results are extracted and each flow value is queried. The majority of the values for Southern California sites are zero flow. As each successive record is read, as soon as a non-zero value is read the time and flow value of that record are recorded as the beginning of an event. The first record is automatically recorded as the “tentative” peak value. As each successive non-zero value is read and the successive flow value is compared to the peak value and the greater value is retained as the peak value of the storm. As soon as a successive number of zero values equal to the chosen storm separation value (generally assumed to be 24 hours), then the time value of the last non-zero value is recorded as the end of the storm, the duration of the storm is the difference between the end time and the start time, and the peak value is recorded as the highest flow value between the start and end times. Once the entire SWMM output file is read all of the distinct storm events will have been recorded in a special list. The storms will be in the order of their occurrence. To develop the peak flow statistics table the first step is to sort the storms in descending order of the peak flow value. Once the list is sorted then the relative rank of each storm is assigned with the highest ranking storm being the storm with the highest peak flow. There are several methods that can be used to determine which storm should be ranked above another equally valued storm. For the purposes of these studies an Ordinal ranking is used so that each storm has a unique rank number. Where two or more storms have equal flow values, the earlier storm is assigned the higher rank. This is done consistently throughout the storm record. Since we are only looking at peak flow statistics, it is assumed that the relative ranking of individual (but equal) storms is irrelevant to the calculations. The exceedance frequency and return period are both computed using the Weibull formula for plotting position. Therefore, for a specific event the exceedance frequency F and the return period in years T are calculated using the following equations1: F=m/(nR+1) and T=n+1/m where m is the event’s rank, nR is the total number of events and n is the number of years under analysis. Once the Peak flow statistics table is complete, a plot of Return Frequency vs. peak flow is created. All three conditions (pre, post and mitigated) are plotted on the same plot. 1 Pg 169-170 Storm Water Management Model Applications Manual, EPA/600/R-09/000 July 2009 Excel Engineering The Peak Flow Statistics Analysis The Peak Flow Statistics analysis is composed of the following series of files: 1. The Peak Flow Frequency Plot 2. The Comparison of the Post-Development Conditions Curve to the Pre-Development Curve (Pass/Fail) 3. The Peak Flow Statistics Calculations for the Pre-Development Curve. 4. The Peak Flow Statistics Calculations for the Post-Development Curve. The Peak Flow Frequency Plot The Peak Flow Frequency Curves are the plotting of both the pre-development and post-development sets of return period vs peak flow data point pair lists. In addition to these curves horizontal lines are plotted corresponding to the Q10, Q5, Q2 and Qlf (low flow threshold) values. Within the geomorphically significant range (Q10 – Qlf) one can see a visual representation of the relative positions of the peak flow curves. The peak flow curves are compared in a North/South (vertical) direction to compare post development peak flows to pre-development flows. The Pre-Development curve is plotted in blue, and the Post-Development curve is plotted in green. As long as the post development curve lies below the pre-development curve (mostly2), the project meets the peak flow hydromodification requirements. Pass/Fail comparison of the curves The next two sets of data are the point by point comparison of the post-development curve and the pre- development curve. The Pass/Fail table is helpful in determining compliance since the plotted lines can be difficult to see at the scales suitable for use in a report. Each point on the post- development curve has a corresponding “X” value (Recurrence Interval), and “Y” value (Peak Flow). For each point on the post development curve, the “X” value is used to interpolate the corresponding peak flow value from the pre-development curve. Then the Post-development peak flow value is compared to the Pre- Development peak flow value. Based on the relative values of each point, pass/fail criteria are determined point by point. For each set of data, the upper right hand header value shows the name of the file being displayed (ex. peakFlowPassFailMitigated.TXT). The first line of the file also shows this value. The next line shows the time stamp of the file that is being analyzed. The time stamps of all of the report files should be within a minute or two of each other, otherwise there may have been confusion with the relative files. Each report run creates and prints all of the files and reports at one time so all the time stamps should be very close. 2 See hydromodification limits for exceedance of pre-development values Excel Engineering It should be noted that the SWMM.out files will not have related time stamps since each file is developed independently. The first column is the zero based number of the point. The next two columns show the post development “X” and “Y” values. The next column shows the value interpolated between the two bounding points on the pre-development curve. The next three columns show the true or false values of the comparison of the two “Y” values. The last column shows the resultant pass or fail status of the point. There are three ways a point can pass. They are: 1. Point is outside of the geomorphically significant range Q10 – Qlf 2. Qpost being less than Q pre 3. Qpost being less than 110% of the value of Qpre if the point is between Q5 and Q103 There are four ways that a point can fail. They are: 1. Qpost being greater than Qpre if the point is between Qlf and Q5 2. Qpost being greater than 110% of Qpre if the point is between Qlf and Q10 3. If more than 10% of the points are between 100% and 110% of Qpre for the points between Q5 and Q10 4. If the frequency interval for points > 100% of Qpre is greater than 1 year for the points between Q5 and Q10 A quick scan down the last column will quickly tell if there are any points that fail. At the bottom of each set of data are the date stamp of the report to the left, and to the right is the page number/number of pages for the specific set of data (not the pages of the report!). Each new set of data has its own page numbering. Between the file name in the header row and the page numbering in the footer row, the engineer can readily scan the document for the data of interest. The Peak Flow Statistics Calculations There are two sets of data for the Peak Flow Statistics calculations (Pre-Development and Post- Development). As was the case for the pass/fail data, the upper right hand corner of each sheet has the file name. The first row of the data is the SWMM file name. The second row is the SWMM file time stamp of the file being analyzed. The 4th, 5th, and 6th rows are the calculated values for Q10, Q5, and Q2. These values are derived by linear interpolation between the nearest bounding points in the listing. While the relationship between the points in the peak flow analysis is not technically a linear relationship, the error introduced in using linear interpolation between such relatively close data points is assumed to be irrelevant. Finally, the footer row shows the report time and the page/number of pages of the data set. 3 See section on how a point can fail point number 3 hereon Excel Engineering As was previously discussed, each storm listed was determined by reading the flow values directly from the binary output file from the SWMM program. The storms were then sorted in descending order of peak flow values. Then each storm was assigned a unique rank, then the Frequency and Return Period were calculated using Weibull formulas. Every discharge value for the entire rainfall record is listed in each of these lists. It should be noted that the derivation of these peak flow statistics values use full precision (i.e. no rounding off) of the SWMM output values. Since the precision of the calculations may not be the same as the SWMM program uses, and also the assignment of rank to values of equal peak flow value may differ slightly from the way SWMM calculates the tables, minor variances in the data values and/or the order of storms can be expected. Finally, as was previously stated, the values of the Return Period were plotted vs. the peak flow values to develop the peak flow frequency curves. Excel Engineering Excel Engineering peakFlowPassFailMitigated Compared to: pre-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out pre-development time stamp: 1/16/2020 2:53:23 PM Compare Post-Development Curve to Pre-Development Curve Flow Control Upper Limit: 11.98 (cfs) Flow Control Lower Limit: 0.787 (cfs) post-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out post-development time stamp: 3/29/2023 1:24:33 PM Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 0 58.00 17.97 17.84 FALSE FALSE FALSE Pass- Qpost Above Q10 (11.98 (cfs)) 1 29.00 9.85 14.45 TRUE FALSE FALSE Pass- Qpost < Qpre 2 19.33 8.25 13.37 TRUE FALSE FALSE Pass- Qpost < Qpre 3 14.50 7.18 12.97 TRUE FALSE FALSE Pass- Qpost < Qpre 4 11.60 6.46 12.27 TRUE FALSE FALSE Pass- Qpost < Qpre 5 9.67 6.01 11.92 TRUE FALSE FALSE Pass- Qpost < Qpre 6 8.29 5.59 11.84 TRUE FALSE FALSE Pass- Qpost < Qpre 7 7.25 5.34 11.80 TRUE FALSE FALSE Pass- Qpost < Qpre 8 6.44 5.20 11.77 TRUE FALSE FALSE Pass- Qpost < Qpre 9 5.80 4.39 11.68 TRUE FALSE FALSE Pass- Qpost < Qpre 10 5.27 4.20 11.36 TRUE FALSE FALSE Pass- Qpost < Qpre 11 4.83 3.97 10.97 TRUE FALSE FALSE Pass- Qpost < Qpre 12 4.46 3.86 10.73 TRUE FALSE FALSE Pass- Qpost < Qpre 13 4.14 3.86 10.69 TRUE FALSE FALSE Pass- Qpost < Qpre 14 3.87 3.83 10.61 TRUE FALSE FALSE Pass- Qpost < Qpre 15 3.63 3.81 10.49 TRUE FALSE FALSE Pass- Qpost < Qpre 16 3.41 3.25 9.73 TRUE FALSE FALSE Pass- Qpost < Qpre 17 3.22 3.24 9.62 TRUE FALSE FALSE Pass- Qpost < Qpre 18 3.05 3.23 9.61 TRUE FALSE FALSE Pass- Qpost < Qpre 19 2.90 3.15 9.57 TRUE FALSE FALSE Pass- Qpost < Qpre 20 2.76 3.14 9.41 TRUE FALSE FALSE Pass- Qpost < Qpre 21 2.64 3.10 9.39 TRUE FALSE FALSE Pass- Qpost < Qpre 22 2.52 3.09 9.00 TRUE FALSE FALSE Pass- Qpost < Qpre 23 2.42 3.04 8.94 TRUE FALSE FALSE Pass- Qpost < Qpre 24 2.32 3.04 8.72 TRUE FALSE FALSE Pass- Qpost < Qpre 25 2.23 3.01 8.05 TRUE FALSE FALSE Pass- Qpost < Qpre 26 2.15 2.95 7.99 TRUE FALSE FALSE Pass- Qpost < Qpre 27 2.07 2.90 7.89 TRUE FALSE FALSE Pass- Qpost < Qpre 28 2.00 2.88 7.87 TRUE FALSE FALSE Pass- Qpost < Qpre 29 1.93 2.80 7.83 TRUE FALSE FALSE Pass- Qpost < Qpre 30 1.87 2.78 7.80 TRUE FALSE FALSE Pass- Qpost < Qpre 31 1.81 2.78 7.50 TRUE FALSE FALSE Pass- Qpost < Qpre 1/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 32 1.76 2.77 7.35 TRUE FALSE FALSE Pass- Qpost < Qpre 33 1.71 2.65 7.34 TRUE FALSE FALSE Pass- Qpost < Qpre 34 1.66 2.63 7.22 TRUE FALSE FALSE Pass- Qpost < Qpre 35 1.61 2.56 6.92 TRUE FALSE FALSE Pass- Qpost < Qpre 36 1.57 2.51 6.69 TRUE FALSE FALSE Pass- Qpost < Qpre 37 1.53 2.51 6.45 TRUE FALSE FALSE Pass- Qpost < Qpre 38 1.49 2.50 6.00 TRUE FALSE FALSE Pass- Qpost < Qpre 39 1.45 2.46 6.00 TRUE FALSE FALSE Pass- Qpost < Qpre 40 1.42 2.46 5.93 TRUE FALSE FALSE Pass- Qpost < Qpre 41 1.38 2.42 5.76 TRUE FALSE FALSE Pass- Qpost < Qpre 42 1.35 2.39 5.76 TRUE FALSE FALSE Pass- Qpost < Qpre 43 1.32 2.37 5.70 TRUE FALSE FALSE Pass- Qpost < Qpre 44 1.29 2.36 5.65 TRUE FALSE FALSE Pass- Qpost < Qpre 45 1.26 2.31 5.30 TRUE FALSE FALSE Pass- Qpost < Qpre 46 1.23 2.28 5.29 TRUE FALSE FALSE Pass- Qpost < Qpre 47 1.21 2.24 5.26 TRUE FALSE FALSE Pass- Qpost < Qpre 48 1.18 2.24 5.13 TRUE FALSE FALSE Pass- Qpost < Qpre 49 1.16 2.24 5.13 TRUE FALSE FALSE Pass- Qpost < Qpre 50 1.14 2.24 5.10 TRUE FALSE FALSE Pass- Qpost < Qpre 51 1.12 2.20 5.07 TRUE FALSE FALSE Pass- Qpost < Qpre 52 1.09 2.19 5.06 TRUE FALSE FALSE Pass- Qpost < Qpre 53 1.07 2.18 5.05 TRUE FALSE FALSE Pass- Qpost < Qpre 54 1.06 2.17 5.05 TRUE FALSE FALSE Pass- Qpost < Qpre 55 1.04 2.14 5.05 TRUE FALSE FALSE Pass- Qpost < Qpre 56 1.02 2.12 5.03 TRUE FALSE FALSE Pass- Qpost < Qpre 57 1.00 2.12 4.93 TRUE FALSE FALSE Pass- Qpost < Qpre 58 0.98 2.11 4.82 TRUE FALSE FALSE Pass- Qpost < Qpre 59 0.97 2.11 4.81 TRUE FALSE FALSE Pass- Qpost < Qpre 60 0.95 2.10 4.80 TRUE FALSE FALSE Pass- Qpost < Qpre 61 0.94 2.01 4.80 TRUE FALSE FALSE Pass- Qpost < Qpre 62 0.92 1.98 4.75 TRUE FALSE FALSE Pass- Qpost < Qpre 63 0.91 1.95 4.65 TRUE FALSE FALSE Pass- Qpost < Qpre 64 0.89 1.95 4.60 TRUE FALSE FALSE Pass- Qpost < Qpre 65 0.88 1.92 4.53 TRUE FALSE FALSE Pass- Qpost < Qpre 66 0.87 1.90 4.53 TRUE FALSE FALSE Pass- Qpost < Qpre 67 0.85 1.89 4.42 TRUE FALSE FALSE Pass- Qpost < Qpre 68 0.84 1.86 4.33 TRUE FALSE FALSE Pass- Qpost < Qpre 69 0.83 1.84 4.15 TRUE FALSE FALSE Pass- Qpost < Qpre 70 0.82 1.83 4.07 TRUE FALSE FALSE Pass- Qpost < Qpre 71 0.81 1.83 4.00 TRUE FALSE FALSE Pass- Qpost < Qpre 72 0.80 1.83 3.91 TRUE FALSE FALSE Pass- Qpost < Qpre 73 0.78 1.83 3.90 TRUE FALSE FALSE Pass- Qpost < Qpre 2/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 74 0.77 1.82 3.80 TRUE FALSE FALSE Pass- Qpost < Qpre 75 0.76 1.80 3.79 TRUE FALSE FALSE Pass- Qpost < Qpre 76 0.75 1.79 3.77 TRUE FALSE FALSE Pass- Qpost < Qpre 77 0.74 1.79 3.76 TRUE FALSE FALSE Pass- Qpost < Qpre 78 0.73 1.77 3.75 TRUE FALSE FALSE Pass- Qpost < Qpre 79 0.73 1.76 3.70 TRUE FALSE FALSE Pass- Qpost < Qpre 80 0.72 1.75 3.61 TRUE FALSE FALSE Pass- Qpost < Qpre 81 0.71 1.68 3.54 TRUE FALSE FALSE Pass- Qpost < Qpre 82 0.70 1.66 3.51 TRUE FALSE FALSE Pass- Qpost < Qpre 83 0.69 1.64 3.46 TRUE FALSE FALSE Pass- Qpost < Qpre 84 0.68 1.64 3.35 TRUE FALSE FALSE Pass- Qpost < Qpre 85 0.67 1.63 3.32 TRUE FALSE FALSE Pass- Qpost < Qpre 86 0.67 1.63 3.29 TRUE FALSE FALSE Pass- Qpost < Qpre 87 0.66 1.63 3.28 TRUE FALSE FALSE Pass- Qpost < Qpre 88 0.65 1.60 3.27 TRUE FALSE FALSE Pass- Qpost < Qpre 89 0.64 1.59 3.24 TRUE FALSE FALSE Pass- Qpost < Qpre 90 0.64 1.58 3.23 TRUE FALSE FALSE Pass- Qpost < Qpre 91 0.63 1.56 3.20 TRUE FALSE FALSE Pass- Qpost < Qpre 92 0.62 1.54 3.18 TRUE FALSE FALSE Pass- Qpost < Qpre 93 0.62 1.54 3.15 TRUE FALSE FALSE Pass- Qpost < Qpre 94 0.61 1.53 3.10 TRUE FALSE FALSE Pass- Qpost < Qpre 95 0.60 1.53 3.05 TRUE FALSE FALSE Pass- Qpost < Qpre 96 0.60 1.52 3.05 TRUE FALSE FALSE Pass- Qpost < Qpre 97 0.59 1.47 3.05 TRUE FALSE FALSE Pass- Qpost < Qpre 98 0.59 1.45 3.04 TRUE FALSE FALSE Pass- Qpost < Qpre 99 0.58 1.45 3.03 TRUE FALSE FALSE Pass- Qpost < Qpre 100 0.57 1.44 3.03 TRUE FALSE FALSE Pass- Qpost < Qpre 101 0.57 1.44 3.03 TRUE FALSE FALSE Pass- Qpost < Qpre 102 0.56 1.43 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 103 0.56 1.42 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 104 0.55 1.42 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 105 0.55 1.41 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 106 0.54 1.39 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 107 0.54 1.37 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 108 0.53 1.37 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 109 0.53 1.37 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 110 0.52 1.36 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 111 0.52 1.35 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 112 0.51 1.34 3.00 TRUE FALSE FALSE Pass- Qpost < Qpre 113 0.51 1.33 3.00 TRUE FALSE FALSE Pass- Qpost < Qpre 114 0.50 1.32 3.00 TRUE FALSE FALSE Pass- Qpost < Qpre 115 0.50 1.32 2.99 TRUE FALSE FALSE Pass- Qpost < Qpre 3/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 116 0.50 1.31 2.99 TRUE FALSE FALSE Pass- Qpost < Qpre 117 0.49 1.29 2.98 TRUE FALSE FALSE Pass- Qpost < Qpre 118 0.49 1.28 2.98 TRUE FALSE FALSE Pass- Qpost < Qpre 119 0.48 1.24 2.98 TRUE FALSE FALSE Pass- Qpost < Qpre 120 0.48 1.24 2.91 TRUE FALSE FALSE Pass- Qpost < Qpre 121 0.48 1.23 2.88 TRUE FALSE FALSE Pass- Qpost < Qpre 122 0.47 1.22 2.85 TRUE FALSE FALSE Pass- Qpost < Qpre 123 0.47 1.20 2.78 TRUE FALSE FALSE Pass- Qpost < Qpre 124 0.46 1.19 2.76 TRUE FALSE FALSE Pass- Qpost < Qpre 125 0.46 1.19 2.75 TRUE FALSE FALSE Pass- Qpost < Qpre 126 0.46 1.18 2.73 TRUE FALSE FALSE Pass- Qpost < Qpre 127 0.45 1.18 2.72 TRUE FALSE FALSE Pass- Qpost < Qpre 128 0.45 1.17 2.72 TRUE FALSE FALSE Pass- Qpost < Qpre 129 0.45 1.17 2.71 TRUE FALSE FALSE Pass- Qpost < Qpre 130 0.44 1.17 2.63 TRUE FALSE FALSE Pass- Qpost < Qpre 131 0.44 1.14 2.62 TRUE FALSE FALSE Pass- Qpost < Qpre 132 0.44 1.11 2.57 TRUE FALSE FALSE Pass- Qpost < Qpre 133 0.43 1.10 2.55 TRUE FALSE FALSE Pass- Qpost < Qpre 134 0.43 1.10 2.54 TRUE FALSE FALSE Pass- Qpost < Qpre 135 0.43 1.08 2.47 TRUE FALSE FALSE Pass- Qpost < Qpre 136 0.42 1.08 2.47 TRUE FALSE FALSE Pass- Qpost < Qpre 137 0.42 1.07 2.47 TRUE FALSE FALSE Pass- Qpost < Qpre 138 0.42 1.07 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 139 0.41 1.05 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 140 0.41 1.04 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 141 0.41 1.03 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 142 0.41 1.02 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 143 0.40 1.01 2.40 TRUE FALSE FALSE Pass- Qpost < Qpre 144 0.40 1.00 2.40 TRUE FALSE FALSE Pass- Qpost < Qpre 145 0.40 1.00 2.40 TRUE FALSE FALSE Pass- Qpost < Qpre 146 0.40 0.99 2.39 TRUE FALSE FALSE Pass- Qpost < Qpre 147 0.39 0.98 2.33 TRUE FALSE FALSE Pass- Qpost < Qpre 148 0.39 0.97 2.32 TRUE FALSE FALSE Pass- Qpost < Qpre 149 0.39 0.97 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 150 0.38 0.96 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 151 0.38 0.96 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 152 0.38 0.96 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 153 0.38 0.96 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 154 0.37 0.95 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 155 0.37 0.95 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 156 0.37 0.94 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 157 0.37 0.94 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 4/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 158 0.37 0.93 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 159 0.36 0.93 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 160 0.36 0.92 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 161 0.36 0.91 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 162 0.36 0.90 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 163 0.35 0.90 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 164 0.35 0.90 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 165 0.35 0.88 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 166 0.35 0.87 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 167 0.35 0.87 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 168 0.34 0.86 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 169 0.34 0.85 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 170 0.34 0.85 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 171 0.34 0.85 2.25 TRUE FALSE FALSE Pass- Qpost < Qpre 172 0.34 0.84 2.25 TRUE FALSE FALSE Pass- Qpost < Qpre 173 0.33 0.83 2.25 TRUE FALSE FALSE Pass- Qpost < Qpre 174 0.33 0.83 2.24 TRUE FALSE FALSE Pass- Qpost < Qpre 175 0.33 0.83 2.24 TRUE FALSE FALSE Pass- Qpost < Qpre 176 0.33 0.81 2.24 TRUE FALSE FALSE Pass- Qpost < Qpre 177 0.33 0.81 2.23 TRUE FALSE FALSE Pass- Qpost < Qpre 178 0.32 0.80 2.23 TRUE FALSE FALSE Pass- Qpost < Qpre 179 0.32 0.79 2.23 TRUE FALSE FALSE Pass- Qpost < Qpre 180 0.32 0.78 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 181 0.32 0.77 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 182 0.32 0.77 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 183 0.32 0.77 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 184 0.31 0.77 2.22 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 185 0.31 0.77 2.22 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 186 0.31 0.76 2.20 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 187 0.31 0.75 2.18 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 188 0.31 0.75 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 189 0.31 0.75 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 190 0.30 0.74 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 191 0.30 0.73 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 192 0.30 0.73 2.16 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 193 0.30 0.72 2.16 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 194 0.30 0.72 2.15 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 195 0.30 0.72 2.15 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 196 0.29 0.72 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 197 0.29 0.72 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 198 0.29 0.71 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 199 0.29 0.70 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 5/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 200 0.29 0.70 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 201 0.29 0.69 2.11 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 202 0.29 0.68 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 203 0.28 0.68 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 204 0.28 0.68 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 205 0.28 0.67 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 206 0.28 0.67 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 207 0.28 0.67 2.09 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 208 0.28 0.66 2.09 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 209 0.28 0.66 2.08 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 210 0.28 0.65 2.07 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 211 0.27 0.65 2.07 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 212 0.27 0.65 2.07 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 213 0.27 0.64 2.04 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 214 0.27 0.64 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 215 0.27 0.64 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 216 0.27 0.64 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 217 0.27 0.64 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 218 0.27 0.63 2.00 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 219 0.26 0.63 1.97 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 220 0.26 0.63 1.96 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 221 0.26 0.63 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 222 0.26 0.63 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 223 0.26 0.62 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 224 0.26 0.62 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 225 0.26 0.62 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 226 0.26 0.62 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 227 0.25 0.62 1.94 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 228 0.25 0.61 1.93 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 229 0.25 0.61 1.90 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 230 0.25 0.60 1.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 231 0.25 0.60 1.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 232 0.25 0.60 1.87 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 233 0.25 0.59 1.87 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 234 0.25 0.59 1.86 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 235 0.25 0.59 1.86 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 236 0.25 0.59 1.85 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 237 0.24 0.58 1.82 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 238 0.24 0.58 1.81 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 239 0.24 0.58 1.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 240 0.24 0.58 1.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 241 0.24 0.58 1.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 6/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 242 0.24 0.58 1.79 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 243 0.24 0.58 1.79 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 244 0.24 0.57 1.78 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 245 0.24 0.57 1.78 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 246 0.24 0.56 1.78 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 247 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 248 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 249 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 250 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 251 0.23 0.55 1.74 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 252 0.23 0.55 1.73 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 253 0.23 0.54 1.72 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 254 0.23 0.54 1.72 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 255 0.23 0.54 1.71 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 256 0.23 0.53 1.69 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 257 0.22 0.53 1.67 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 258 0.22 0.53 1.67 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 259 0.22 0.52 1.66 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 260 0.22 0.52 1.65 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 261 0.22 0.51 1.65 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 262 0.22 0.51 1.63 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 263 0.22 0.50 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 264 0.22 0.50 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 265 0.22 0.50 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 266 0.22 0.49 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 267 0.22 0.48 1.56 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 268 0.21 0.48 1.55 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 269 0.21 0.48 1.54 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 270 0.21 0.48 1.53 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 271 0.21 0.47 1.53 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 272 0.21 0.47 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 273 0.21 0.47 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 274 0.21 0.47 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 275 0.21 0.46 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 276 0.21 0.46 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 277 0.21 0.46 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 278 0.21 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 279 0.21 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 280 0.20 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 281 0.20 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 282 0.20 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 283 0.20 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 7/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 284 0.20 0.44 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 285 0.20 0.44 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 286 0.20 0.44 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 287 0.20 0.43 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 288 0.20 0.43 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 289 0.20 0.43 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 290 0.20 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 291 0.20 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 292 0.19 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 293 0.19 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 294 0.19 0.41 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 295 0.19 0.40 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 296 0.19 0.40 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 297 0.19 0.39 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 298 0.19 0.39 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 299 0.19 0.39 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 300 0.19 0.38 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 301 0.19 0.37 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 302 0.19 0.37 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 303 0.18 0.37 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 304 0.18 0.36 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 305 0.18 0.36 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 306 0.18 0.36 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 307 0.18 0.35 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 308 0.18 0.35 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 309 0.18 0.35 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 310 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 311 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 312 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 313 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 314 0.18 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 315 0.18 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 316 0.17 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 317 0.17 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 318 0.17 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 319 0.17 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 320 0.17 0.32 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 321 0.17 0.32 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 322 0.17 0.32 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 323 0.17 0.32 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 324 0.17 0.32 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 325 0.17 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 8/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 326 0.17 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 327 0.17 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 328 0.16 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 329 0.16 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 330 0.16 0.31 1.47 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 331 0.16 0.30 1.47 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 332 0.16 0.30 1.46 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 333 0.16 0.30 1.46 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 334 0.16 0.30 1.44 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 335 0.16 0.30 1.41 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 336 0.16 0.30 1.41 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 337 0.16 0.30 1.34 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 338 0.15 0.30 1.33 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 339 0.15 0.30 1.32 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 340 0.15 0.30 1.27 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 341 0.15 0.29 1.25 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 342 0.15 0.29 1.25 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 343 0.15 0.29 1.24 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 344 0.15 0.29 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 345 0.15 0.29 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 346 0.15 0.29 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 347 0.15 0.28 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 348 0.15 0.28 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 349 0.14 0.28 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 350 0.14 0.28 1.20 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 351 0.14 0.28 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 352 0.14 0.28 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 353 0.14 0.27 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 354 0.14 0.27 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 355 0.14 0.27 1.18 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 356 0.14 0.27 1.18 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 357 0.14 0.27 1.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 358 0.14 0.26 1.16 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 359 0.14 0.26 1.14 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 360 0.13 0.26 1.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 361 0.13 0.26 1.11 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 362 0.13 0.26 1.08 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 363 0.13 0.26 1.04 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 364 0.13 0.25 1.04 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 365 0.13 0.25 1.03 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 366 0.13 0.25 1.01 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 367 0.13 0.25 0.99 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 9/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 368 0.13 0.25 0.96 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 369 0.13 0.25 0.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 370 0.13 0.25 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 371 0.12 0.25 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 372 0.12 0.24 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 373 0.12 0.24 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 374 0.12 0.24 0.90 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 375 0.12 0.24 0.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 376 0.12 0.23 0.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 377 0.12 0.23 0.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 378 0.12 0.23 0.88 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 379 0.12 0.23 0.88 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 380 0.12 0.22 0.88 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 381 0.12 0.22 0.87 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 382 0.12 0.22 0.83 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 383 0.11 0.22 0.81 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 384 0.11 0.21 0.81 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 385 0.11 0.21 0.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 386 0.11 0.21 0.79 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 387 0.11 0.21 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 388 0.11 0.20 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 389 0.11 0.20 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 390 0.11 0.20 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 391 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 392 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 393 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 394 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 395 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 396 0.11 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 397 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 398 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 399 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 400 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 401 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 402 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 403 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 404 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 405 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 406 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 407 0.09 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 408 0.09 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 409 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 10/113/29/2023 4:01 PM Excel Engineering peakFlowPassFailMitigated Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 410 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 411 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 412 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 413 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 414 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 415 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 416 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 417 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 418 0.09 0.14 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 419 0.08 0.14 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 420 0.08 0.14 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 421 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 422 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 423 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 424 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 425 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 426 0.08 0.13 0.74 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 427 0.08 0.13 0.72 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 428 0.08 0.13 0.66 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 429 0.08 0.13 0.65 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 430 0.07 0.13 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 431 0.07 0.12 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 432 0.07 0.11 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 433 0.07 0.11 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 434 0.07 0.10 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 435 0.07 0.09 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 436 0.07 0.08 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 437 0.07 0.07 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 438 0.07 0.06 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 439 0.07 0.06 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 440 0.07 0.05 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 441 0.07 0.04 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 442 0.07 0.03 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 443 0.07 0.02 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 444 0.07 0.02 0.56 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 445 0.07 0.01 0.56 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 446 0.07 0.01 0.53 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 447 0.07 0.00 0.53 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 448 0.07 0.00 0.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 11/113/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1 1995/01/03 06:00:00 1995/01/05 03:00:00 46 17.84 0.09%58 2 2003/02/24 17:00:00 2003/02/28 00:00:00 80 14.45 0.17%29 3 1958/02/03 03:00:00 1958/02/04 17:00:00 39 13.37 0.26%19.33 4 1969/02/18 06:00:00 1969/02/25 21:00:00 184 12.97 0.34%14.5 5 2005/02/17 17:00:00 2005/02/19 10:00:00 42 12.27 0.43%11.6 6 1980/03/02 19:00:00 1980/03/03 17:00:00 23 11.92 0.52%9.67 7 1980/02/13 11:00:00 1980/02/21 07:00:00 189 11.84 0.60%8.29 8 1978/01/03 17:00:00 1978/01/06 18:00:00 74 11.8 0.69%7.25 9 1978/02/27 05:00:00 1978/03/05 03:00:00 143 11.77 0.77%6.44 10 1993/01/12 13:00:00 1993/01/18 20:00:00 152 11.68 0.86%5.8 11 1958/03/30 23:00:00 1958/04/04 11:00:00 109 11.36 0.94%5.27 12 2000/10/29 20:00:00 2000/10/31 00:00:00 29 10.97 1.03%4.83 13 1952/11/14 14:00:00 1952/11/16 12:00:00 47 10.73 1.12%4.46 14 2004/10/27 01:00:00 2004/10/28 11:00:00 35 10.69 1.20%4.14 15 1952/01/16 06:00:00 1952/01/18 11:00:00 54 10.61 1.29%3.87 16 1982/03/17 03:00:00 1982/03/18 23:00:00 45 10.49 1.37%3.63 17 1979/01/14 18:00:00 1979/01/16 03:00:00 34 9.73 1.46%3.41 18 1998/02/03 02:00:00 1998/02/04 19:00:00 42 9.62 1.55%3.22 19 1983/02/26 06:00:00 1983/03/05 02:00:00 165 9.61 1.63%3.05 20 1970/12/16 21:00:00 1970/12/19 23:00:00 75 9.57 1.72%2.9 21 1978/02/05 10:00:00 1978/02/14 00:00:00 207 9.41 1.80%2.76 22 1965/11/21 05:00:00 1965/11/23 07:00:00 51 9.39 1.89%2.64 23 1983/01/28 23:00:00 1983/01/29 13:00:00 15 9 1.97%2.52 24 2004/10/17 05:00:00 2004/10/20 21:00:00 89 8.94 2.06%2.42 25 1998/02/22 02:00:00 1998/02/25 00:00:00 71 8.72 2.15%2.32 26 1998/02/14 02:00:00 1998/02/20 18:00:00 161 8.05 2.23%2.23 27 1991/12/29 15:00:00 1991/12/30 04:00:00 14 7.99 2.32%2.15 28 2008/01/26 21:00:00 2008/01/27 23:00:00 27 7.89 2.40%2.07 29 1980/01/27 22:00:00 1980/01/30 17:00:00 68 7.87 2.49%2 30 2008/01/05 01:00:00 2008/01/07 07:00:00 55 7.83 2.58%1.93 31 1978/01/16 15:00:00 1978/01/17 03:00:00 13 7.8 2.66%1.87 32 1995/03/11 01:00:00 1995/03/12 01:00:00 25 7.5 2.75%1.81 33 1983/09/29 09:00:00 1983/10/01 12:00:00 52 7.35 2.83%1.76 34 1992/02/12 11:00:00 1992/02/13 07:00:00 21 7.34 2.92%1.71 35 1991/02/27 18:00:00 1991/03/01 11:00:00 42 7.22 3.00%1.66 36 1993/02/07 18:00:00 1993/02/09 08:00:00 39 6.92 3.09%1.61 37 1985/11/11 04:00:00 1985/11/12 09:00:00 30 6.69 3.18%1.57 38 1961/12/01 18:00:00 1961/12/03 04:00:00 35 6.45 3.26%1.53 39 1977/08/16 15:00:00 1977/08/18 01:00:00 35 6 3.35%1.49 Peak Flow Statistics Table Values SWMM.out file name: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out SWMM.out time stamp: 1/16/2020 2:53:23 PM Q10: 11.980 (cfs) Q5: 11.120 (cfs) Q2: 7.870 (cfs) 1/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 40 2004/12/31 13:00:00 2005/01/01 11:00:00 23 6 3.43%1.45 41 1986/02/14 22:00:00 1986/02/15 10:00:00 13 5.93 3.52%1.42 42 2002/11/08 02:00:00 2002/11/09 19:00:00 42 5.76 3.61%1.38 43 2003/02/11 02:00:00 2003/02/14 18:00:00 89 5.76 3.69%1.35 44 1979/01/05 07:00:00 1979/01/06 15:00:00 33 5.7 3.78%1.32 45 1994/02/03 18:00:00 1994/02/05 02:00:00 33 5.65 3.86%1.29 46 1958/02/19 06:00:00 1958/02/19 17:00:00 12 5.3 3.95%1.26 47 2005/01/07 05:00:00 2005/01/12 04:00:00 120 5.29 4.03%1.23 48 1986/03/15 21:00:00 1986/03/17 03:00:00 31 5.26 4.12%1.21 49 1968/03/07 20:00:00 1968/03/08 15:00:00 20 5.13 4.21%1.18 50 1993/02/18 10:00:00 1993/02/20 14:00:00 53 5.13 4.29%1.16 51 1963/09/17 03:00:00 1963/09/18 22:00:00 44 5.1 4.38%1.14 52 1988/12/24 19:00:00 1988/12/25 00:00:00 6 5.07 4.46%1.12 53 1980/01/09 01:00:00 1980/01/12 13:00:00 85 5.06 4.55%1.09 54 1965/12/09 05:00:00 1965/12/10 11:00:00 31 5.05 4.64%1.07 55 2005/02/21 02:00:00 2005/02/23 08:00:00 55 5.05 4.72%1.06 56 2008/02/20 08:00:00 2008/02/22 14:00:00 55 5.05 4.81%1.04 57 1991/03/25 02:00:00 1991/03/27 06:00:00 53 5.03 4.89%1.02 58 1960/04/27 03:00:00 1960/04/27 12:00:00 10 4.93 4.98%1 59 1971/12/24 06:00:00 1971/12/25 23:00:00 42 4.82 5.06%0.98 60 2001/02/12 15:00:00 2001/02/15 02:00:00 60 4.81 5.15%0.97 61 2003/03/15 02:00:00 2003/03/17 02:00:00 49 4.8 5.24%0.95 62 2005/04/28 06:00:00 2005/04/28 10:00:00 5 4.8 5.32%0.94 63 1978/01/14 14:00:00 1978/01/15 06:00:00 17 4.75 5.41%0.92 64 1954/02/13 14:00:00 1954/02/14 16:00:00 27 4.65 5.49%0.91 65 1962/01/20 11:00:00 1962/01/22 22:00:00 60 4.6 5.58%0.89 66 1982/12/22 08:00:00 1982/12/23 09:00:00 26 4.53 5.67%0.88 67 2007/01/30 12:00:00 2007/01/31 06:00:00 19 4.53 5.75%0.87 68 1972/01/16 18:00:00 1972/01/17 09:00:00 16 4.42 5.84%0.85 69 1960/01/10 09:00:00 1960/01/12 09:00:00 49 4.33 5.92%0.84 70 1963/03/16 21:00:00 1963/03/17 23:00:00 27 4.15 6.01%0.83 71 1999/01/25 04:00:00 1999/01/27 06:00:00 51 4.07 6.09%0.82 72 1977/12/28 01:00:00 1977/12/30 03:00:00 51 4 6.18%0.81 73 2005/01/03 05:00:00 2005/01/05 11:00:00 55 3.91 6.27%0.8 74 2006/10/13 23:00:00 2006/10/14 02:00:00 4 3.9 6.35%0.78 75 1969/02/05 06:00:00 1969/02/06 20:00:00 39 3.8 6.44%0.77 76 1979/11/07 18:00:00 1979/11/08 05:00:00 12 3.79 6.52%0.76 77 1983/12/24 08:00:00 1983/12/27 09:00:00 74 3.77 6.61%0.75 78 1981/03/19 19:00:00 1981/03/20 04:00:00 10 3.76 6.70%0.74 79 1978/09/05 16:00:00 1978/09/06 13:00:00 22 3.75 6.78%0.73 80 1966/12/03 01:00:00 1966/12/07 00:00:00 96 3.7 6.87%0.73 81 2003/04/13 17:00:00 2003/04/15 19:00:00 51 3.61 6.95%0.72 82 2001/01/26 11:00:00 2001/01/27 22:00:00 36 3.54 7.04%0.71 83 1975/04/05 20:00:00 1975/04/09 10:00:00 87 3.51 7.12%0.7 84 1954/01/18 09:00:00 1954/01/20 07:00:00 47 3.46 7.21%0.69 85 1987/10/11 10:00:00 1987/10/12 21:00:00 36 3.35 7.30%0.68 86 1968/12/24 17:00:00 1968/12/26 12:00:00 44 3.32 7.38%0.67 2/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 87 1954/03/16 20:00:00 1954/03/17 21:00:00 26 3.29 7.47%0.67 88 1997/01/12 13:00:00 1997/01/14 02:00:00 38 3.28 7.55%0.66 89 1993/06/05 12:00:00 1993/06/05 17:00:00 6 3.27 7.64%0.65 90 1959/02/11 06:00:00 1959/02/12 07:00:00 26 3.24 7.73%0.64 91 1959/12/24 06:00:00 1959/12/25 06:00:00 25 3.23 7.81%0.64 92 1952/12/02 00:00:00 1952/12/02 02:00:00 3 3.2 7.90%0.63 93 1957/01/13 02:00:00 1957/01/13 14:00:00 13 3.18 7.98%0.62 94 1952/03/15 18:00:00 1952/03/16 19:00:00 26 3.15 8.07%0.62 95 1967/01/22 12:00:00 1967/01/23 04:00:00 17 3.1 8.15%0.61 96 1967/11/19 07:00:00 1967/11/20 04:00:00 22 3.05 8.24%0.6 97 1986/11/17 16:00:00 1986/11/18 08:00:00 17 3.05 8.33%0.6 98 2004/12/28 06:00:00 2004/12/30 11:00:00 54 3.05 8.41%0.59 99 1988/01/17 03:00:00 1988/01/17 22:00:00 20 3.04 8.50%0.59 100 1958/01/24 23:00:00 1958/01/27 11:00:00 61 3.03 8.58%0.58 101 1983/01/27 07:00:00 1983/01/27 14:00:00 8 3.03 8.67%0.57 102 1991/03/19 00:00:00 1991/03/19 05:00:00 6 3.03 8.76%0.57 103 1967/12/18 14:00:00 1967/12/20 09:00:00 44 3.02 8.84%0.56 104 1983/11/24 19:00:00 1983/11/25 02:00:00 8 3.02 8.93%0.56 105 1987/12/04 20:00:00 1987/12/05 02:00:00 7 3.02 9.01%0.55 106 1988/11/25 06:00:00 1988/11/25 11:00:00 6 3.02 9.10%0.55 107 1992/02/15 12:00:00 1992/02/16 12:00:00 25 3.02 9.18%0.54 108 1992/03/20 17:00:00 1992/03/23 15:00:00 71 3.02 9.27%0.54 109 1990/02/17 08:00:00 1990/02/18 23:00:00 40 3.01 9.36%0.53 110 1991/01/09 12:00:00 1991/01/09 16:00:00 5 3.01 9.44%0.53 111 1993/11/30 03:00:00 1993/11/30 13:00:00 11 3.01 9.53%0.52 112 2004/02/21 17:00:00 2004/02/23 08:00:00 40 3.01 9.61%0.52 113 1954/11/10 21:00:00 1954/11/12 09:00:00 37 3 9.70%0.51 114 1973/11/22 19:00:00 1973/11/23 06:00:00 12 3 9.79%0.51 115 1981/11/26 20:00:00 1981/11/29 02:00:00 55 3 9.87%0.5 116 1978/03/30 10:00:00 1978/04/01 01:00:00 40 2.99 9.96%0.5 117 1979/03/17 02:00:00 1979/03/17 09:00:00 8 2.99 10.04%0.5 118 1957/05/10 05:00:00 1957/05/11 11:00:00 31 2.98 10.13%0.49 119 1976/09/09 23:00:00 1976/09/11 06:00:00 32 2.98 10.21%0.49 120 2007/04/20 13:00:00 2007/04/20 17:00:00 5 2.98 10.30%0.48 121 2004/02/25 23:00:00 2004/02/27 10:00:00 36 2.91 10.39%0.48 122 1958/03/15 13:00:00 1958/03/16 13:00:00 25 2.88 10.47%0.48 123 1952/11/30 00:00:00 1952/11/30 07:00:00 8 2.85 10.56%0.47 124 1967/11/30 14:00:00 1967/11/30 17:00:00 4 2.78 10.64%0.47 125 1973/03/20 04:00:00 1973/03/20 12:00:00 9 2.76 10.73%0.46 126 1968/04/01 19:00:00 1968/04/02 10:00:00 16 2.75 10.82%0.46 127 1995/01/10 13:00:00 1995/01/12 21:00:00 57 2.73 10.90%0.46 128 1994/03/24 20:00:00 1994/03/25 21:00:00 26 2.72 10.99%0.45 129 2007/11/30 06:00:00 2007/12/01 02:00:00 21 2.72 11.07%0.45 130 1998/11/08 06:00:00 1998/11/08 15:00:00 10 2.71 11.16%0.45 131 2001/01/10 18:00:00 2001/01/12 12:00:00 43 2.63 11.24%0.44 132 1967/03/12 14:00:00 1967/03/14 13:00:00 48 2.62 11.33%0.44 133 1960/02/01 18:00:00 1960/02/02 02:00:00 9 2.57 11.42%0.44 3/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 134 1963/11/20 01:00:00 1963/11/21 07:00:00 31 2.55 11.50%0.43 135 1971/04/14 09:00:00 1971/04/14 14:00:00 6 2.54 11.59%0.43 136 1967/04/11 06:00:00 1967/04/11 18:00:00 13 2.47 11.67%0.43 137 1970/02/28 08:00:00 1970/03/02 07:00:00 48 2.47 11.76%0.42 138 1972/11/14 12:00:00 1972/11/14 17:00:00 6 2.47 11.85%0.42 139 1960/02/28 16:00:00 1960/03/01 09:00:00 42 2.43 11.93%0.42 140 1993/01/30 23:00:00 1993/01/31 01:00:00 3 2.43 12.02%0.41 141 1995/01/23 01:00:00 1995/01/26 10:00:00 82 2.43 12.10%0.41 142 1996/11/21 15:00:00 1996/11/22 08:00:00 18 2.43 12.19%0.41 143 2004/04/01 21:00:00 2004/04/01 23:00:00 3 2.43 12.27%0.41 144 1995/03/03 06:00:00 1995/03/06 06:00:00 73 2.4 12.36%0.4 145 2003/12/24 22:00:00 2003/12/25 20:00:00 23 2.4 12.45%0.4 146 2006/12/09 20:00:00 2006/12/11 02:00:00 31 2.4 12.53%0.4 147 2006/03/10 15:00:00 2006/03/11 17:00:00 27 2.39 12.62%0.4 148 1964/01/21 04:00:00 1964/01/23 18:00:00 63 2.33 12.70%0.39 149 1964/11/17 07:00:00 1964/11/17 20:00:00 14 2.32 12.79%0.39 150 1978/03/09 16:00:00 1978/03/09 18:00:00 3 2.27 12.88%0.39 151 1980/10/16 04:00:00 1980/10/16 07:00:00 4 2.27 12.96%0.38 152 1982/04/01 09:00:00 1982/04/01 18:00:00 10 2.27 13.05%0.38 153 1982/12/07 21:00:00 1982/12/08 01:00:00 5 2.27 13.13%0.38 154 1983/04/20 03:00:00 1983/04/21 11:00:00 33 2.27 13.22%0.38 155 1985/12/11 02:00:00 1985/12/11 10:00:00 9 2.27 13.30%0.37 156 1987/04/04 05:00:00 1987/04/04 17:00:00 13 2.27 13.39%0.37 157 1987/12/16 11:00:00 1987/12/17 10:00:00 24 2.27 13.48%0.37 158 1988/08/24 04:00:00 1988/08/24 16:00:00 13 2.27 13.56%0.37 159 1988/11/14 06:00:00 1988/11/14 09:00:00 4 2.27 13.65%0.37 160 1991/03/20 07:00:00 1991/03/21 10:00:00 28 2.27 13.73%0.36 161 1966/02/06 09:00:00 1966/02/08 07:00:00 47 2.26 13.82%0.36 162 1977/01/02 21:00:00 1977/01/03 05:00:00 9 2.26 13.91%0.36 163 1980/03/05 22:00:00 1980/03/06 13:00:00 16 2.26 13.99%0.36 164 1981/01/28 05:00:00 1981/01/28 15:00:00 11 2.26 14.08%0.35 165 1981/01/29 16:00:00 1981/01/30 12:00:00 21 2.26 14.16%0.35 166 1982/01/01 05:00:00 1982/01/02 10:00:00 30 2.26 14.25%0.35 167 1982/01/20 02:00:00 1982/01/21 13:00:00 36 2.26 14.33%0.35 168 1985/11/29 05:00:00 1985/11/29 14:00:00 10 2.26 14.42%0.35 169 1988/12/20 22:00:00 1988/12/21 07:00:00 10 2.26 14.51%0.34 170 1990/01/16 23:00:00 1990/01/17 07:00:00 9 2.26 14.59%0.34 171 1997/01/15 14:00:00 1997/01/15 20:00:00 7 2.26 14.68%0.34 172 1965/12/29 06:00:00 1965/12/29 21:00:00 16 2.25 14.76%0.34 173 1978/01/09 14:00:00 1978/01/11 00:00:00 35 2.25 14.85%0.34 174 1985/11/24 14:00:00 1985/11/25 16:00:00 27 2.25 14.94%0.33 175 1957/02/28 16:00:00 1957/03/01 13:00:00 22 2.24 15.02%0.33 176 1972/11/16 07:00:00 1972/11/17 14:00:00 32 2.24 15.11%0.33 177 1990/04/04 07:00:00 1990/04/04 13:00:00 7 2.24 15.19%0.33 178 1956/04/12 16:00:00 1956/04/13 18:00:00 27 2.23 15.28%0.33 179 1976/07/08 09:00:00 1976/07/08 15:00:00 7 2.23 15.36%0.32 180 1979/03/18 21:00:00 1979/03/21 07:00:00 59 2.23 15.45%0.32 4/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 181 1983/03/24 02:00:00 1983/03/25 09:00:00 32 2.23 15.54%0.32 182 1984/10/17 05:00:00 1984/10/17 08:00:00 4 2.23 15.62%0.32 183 1988/04/14 17:00:00 1988/04/15 01:00:00 9 2.23 15.71%0.32 184 1988/04/19 23:00:00 1988/04/21 08:00:00 34 2.23 15.79%0.32 185 1976/07/22 10:00:00 1976/07/22 14:00:00 5 2.22 15.88%0.31 186 1986/09/23 23:00:00 1986/09/25 06:00:00 32 2.22 15.97%0.31 187 1974/12/04 02:00:00 1974/12/04 14:00:00 13 2.2 16.05%0.31 188 2002/12/20 02:00:00 2002/12/21 23:00:00 46 2.18 16.14%0.31 189 1965/03/31 11:00:00 1965/04/01 21:00:00 35 2.17 16.22%0.31 190 1965/11/14 06:00:00 1965/11/18 17:00:00 108 2.17 16.31%0.31 191 1975/03/08 06:00:00 1975/03/08 23:00:00 18 2.17 16.39%0.3 192 2001/02/25 02:00:00 2001/02/28 21:00:00 92 2.17 16.48%0.3 193 1957/03/16 08:00:00 1957/03/16 14:00:00 7 2.16 16.57%0.3 194 1958/03/20 15:00:00 1958/03/22 12:00:00 46 2.16 16.65%0.3 195 1958/09/23 21:00:00 1958/09/24 07:00:00 11 2.15 16.74%0.3 196 1965/04/03 03:00:00 1965/04/05 11:00:00 57 2.15 16.82%0.3 197 1953/03/01 01:00:00 1953/03/02 02:00:00 26 2.12 16.91%0.29 198 1963/04/26 02:00:00 1963/04/26 09:00:00 8 2.12 17.00%0.29 199 1973/02/15 11:00:00 1973/02/15 15:00:00 5 2.12 17.08%0.29 200 1993/03/25 23:00:00 1993/03/26 13:00:00 15 2.12 17.17%0.29 201 1994/03/19 02:00:00 1994/03/20 07:00:00 30 2.12 17.25%0.29 202 1956/01/25 12:00:00 1956/01/27 09:00:00 46 2.11 17.34%0.29 203 1955/01/10 03:00:00 1955/01/11 01:00:00 23 2.1 17.42%0.29 204 1960/01/25 19:00:00 1960/01/26 06:00:00 12 2.1 17.51%0.28 205 1976/03/01 13:00:00 1976/03/01 20:00:00 8 2.1 17.60%0.28 206 1992/12/07 07:00:00 1992/12/08 03:00:00 21 2.1 17.68%0.28 207 1998/01/29 02:00:00 1998/01/31 18:00:00 65 2.1 17.77%0.28 208 1960/11/05 19:00:00 1960/11/06 12:00:00 18 2.09 17.85%0.28 209 2004/02/02 22:00:00 2004/02/04 00:00:00 27 2.09 17.94%0.28 210 1994/03/06 04:00:00 1994/03/07 09:00:00 30 2.08 18.03%0.28 211 1995/04/18 09:00:00 1995/04/18 18:00:00 10 2.07 18.11%0.28 212 2001/04/07 02:00:00 2001/04/08 02:00:00 25 2.07 18.20%0.27 213 2007/08/26 10:00:00 2007/08/26 12:00:00 3 2.07 18.28%0.27 214 1955/01/18 14:00:00 1955/01/20 07:00:00 42 2.04 18.37%0.27 215 1954/12/09 21:00:00 1954/12/10 11:00:00 15 2.02 18.45%0.27 216 1960/01/14 15:00:00 1960/01/15 09:00:00 19 2.02 18.54%0.27 217 1969/11/06 17:00:00 1969/11/07 11:00:00 19 2.02 18.63%0.27 218 1971/02/16 17:00:00 1971/02/17 12:00:00 20 2.02 18.71%0.27 219 1965/04/07 03:00:00 1965/04/10 11:00:00 81 2 18.80%0.27 220 1966/11/07 12:00:00 1966/11/08 08:00:00 21 1.97 18.88%0.26 221 1951/12/28 18:00:00 1951/12/30 15:00:00 46 1.96 18.97%0.26 222 1959/01/06 00:00:00 1959/01/06 09:00:00 10 1.95 19.06%0.26 223 1959/12/09 20:00:00 1959/12/10 07:00:00 12 1.95 19.14%0.26 224 1966/01/30 06:00:00 1966/01/31 02:00:00 21 1.95 19.23%0.26 225 1970/12/21 03:00:00 1970/12/22 05:00:00 27 1.95 19.31%0.26 226 1976/02/03 17:00:00 1976/02/10 19:00:00 171 1.95 19.40%0.26 227 2002/12/16 02:00:00 2002/12/17 18:00:00 41 1.95 19.48%0.26 5/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 228 1998/02/06 04:00:00 1998/02/09 18:00:00 87 1.94 19.57%0.25 229 1962/03/18 16:00:00 1962/03/20 06:00:00 39 1.93 19.66%0.25 230 1952/12/30 19:00:00 1952/12/31 11:00:00 17 1.9 19.74%0.25 231 1957/01/26 03:00:00 1957/01/29 23:00:00 93 1.89 19.83%0.25 232 1969/01/24 04:00:00 1969/01/26 21:00:00 66 1.89 19.91%0.25 233 1951/11/22 20:00:00 1951/11/23 06:00:00 11 1.87 20.00%0.25 234 1997/12/06 02:00:00 1997/12/07 21:00:00 44 1.87 20.09%0.25 235 1952/03/07 05:00:00 1952/03/08 10:00:00 30 1.86 20.17%0.25 236 1952/11/22 23:00:00 1952/11/23 12:00:00 14 1.86 20.26%0.25 237 1958/04/06 17:00:00 1958/04/07 17:00:00 25 1.85 20.34%0.25 238 1993/01/06 00:00:00 1993/01/09 06:00:00 79 1.82 20.43%0.24 239 1994/02/17 06:00:00 1994/02/19 02:00:00 45 1.81 20.52%0.24 240 1967/11/21 11:00:00 1967/11/22 04:00:00 18 1.8 20.60%0.24 241 1996/10/30 12:00:00 1996/10/30 18:00:00 7 1.8 20.69%0.24 242 2001/12/09 02:00:00 2001/12/10 02:00:00 25 1.8 20.77%0.24 243 1963/02/09 15:00:00 1963/02/11 09:00:00 43 1.79 20.86%0.24 244 1969/03/21 11:00:00 1969/03/21 22:00:00 12 1.79 20.94%0.24 245 1954/03/30 00:00:00 1954/03/30 08:00:00 9 1.78 21.03%0.24 246 1959/04/26 00:00:00 1959/04/26 08:00:00 9 1.78 21.12%0.24 247 2000/03/04 10:00:00 2000/03/08 20:00:00 107 1.78 21.20%0.24 248 1960/09/11 02:00:00 1960/09/11 09:00:00 8 1.77 21.29%0.23 249 1993/03/28 01:00:00 1993/03/28 04:00:00 4 1.77 21.37%0.23 250 1995/04/16 05:00:00 1995/04/17 05:00:00 25 1.77 21.46%0.23 251 2006/03/28 05:00:00 2006/03/29 09:00:00 29 1.77 21.55%0.23 252 1974/03/27 07:00:00 1974/03/27 09:00:00 3 1.74 21.63%0.23 253 1951/12/11 15:00:00 1951/12/12 12:00:00 22 1.73 21.72%0.23 254 1957/01/05 02:00:00 1957/01/05 14:00:00 13 1.72 21.80%0.23 255 1987/02/23 13:00:00 1987/02/26 00:00:00 60 1.72 21.89%0.23 256 1965/02/05 22:00:00 1965/02/06 23:00:00 26 1.71 21.97%0.23 257 1973/02/11 04:00:00 1973/02/13 05:00:00 50 1.71 22.06%0.23 258 1969/04/05 20:00:00 1969/04/06 00:00:00 5 1.69 22.15%0.23 259 1973/02/28 01:00:00 1973/02/28 08:00:00 8 1.67 22.23%0.22 260 1973/03/05 08:00:00 1973/03/07 01:00:00 42 1.67 22.32%0.22 261 1970/11/28 18:00:00 1970/12/01 00:00:00 55 1.66 22.40%0.22 262 1958/02/25 06:00:00 1958/02/25 10:00:00 5 1.65 22.49%0.22 263 2001/11/24 02:00:00 2001/11/25 02:00:00 25 1.64 22.58%0.22 264 1960/11/12 22:00:00 1960/11/13 00:00:00 3 1.63 22.66%0.22 265 1952/01/13 01:00:00 1952/01/13 15:00:00 15 1.59 22.75%0.22 266 1957/12/05 01:00:00 1957/12/05 21:00:00 21 1.59 22.83%0.22 267 1959/02/21 09:00:00 1959/02/22 01:00:00 17 1.59 22.92%0.22 268 1962/02/19 10:00:00 1962/02/21 09:00:00 48 1.59 23.00%0.22 269 1952/02/29 10:00:00 1952/03/01 13:00:00 28 1.56 23.09%0.22 270 1959/02/16 02:00:00 1959/02/17 05:00:00 28 1.56 23.18%0.22 271 1974/03/07 09:00:00 1974/03/08 14:00:00 30 1.55 23.26%0.21 272 1998/05/12 02:00:00 1998/05/13 18:00:00 41 1.54 23.35%0.21 273 1951/08/28 06:00:00 1951/08/30 07:00:00 50 1.53 23.43%0.21 274 1953/02/23 09:00:00 1953/02/23 21:00:00 13 1.52 23.52%0.21 6/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 275 1958/03/06 09:00:00 1958/03/07 01:00:00 17 1.52 23.61%0.21 276 1977/03/24 21:00:00 1977/03/25 15:00:00 19 1.52 23.69%0.21 277 1977/05/07 21:00:00 1977/05/09 09:00:00 37 1.52 23.78%0.21 278 1977/05/24 04:00:00 1977/05/24 09:00:00 6 1.52 23.86%0.21 279 1979/02/14 03:00:00 1979/02/14 06:00:00 4 1.52 23.95%0.21 280 1981/02/25 19:00:00 1981/02/26 00:00:00 6 1.52 24.03%0.21 281 1982/01/10 19:00:00 1982/01/11 05:00:00 11 1.52 24.12%0.21 282 1982/03/14 12:00:00 1982/03/15 00:00:00 13 1.52 24.21%0.21 283 1983/02/06 11:00:00 1983/02/08 07:00:00 45 1.52 24.29%0.21 284 1983/03/06 05:00:00 1983/03/06 21:00:00 17 1.52 24.38%0.2 285 1983/11/11 17:00:00 1983/11/13 01:00:00 33 1.52 24.46%0.2 286 1983/12/09 16:00:00 1983/12/09 17:00:00 2 1.52 24.55%0.2 287 1984/04/27 21:00:00 1984/04/27 23:00:00 3 1.52 24.64%0.2 288 1984/11/13 08:00:00 1984/11/13 09:00:00 2 1.52 24.72%0.2 289 1984/12/07 23:00:00 1984/12/08 02:00:00 4 1.52 24.81%0.2 290 1985/10/21 23:00:00 1985/10/22 00:00:00 2 1.52 24.89%0.2 291 1986/01/31 18:00:00 1986/01/31 23:00:00 6 1.52 24.98%0.2 292 1986/03/08 15:00:00 1986/03/09 00:00:00 10 1.52 25.06%0.2 293 1986/10/09 19:00:00 1986/10/10 01:00:00 7 1.52 25.15%0.2 294 1990/01/31 00:00:00 1990/01/31 02:00:00 3 1.52 25.24%0.2 295 1991/10/26 23:00:00 1991/10/27 12:00:00 14 1.52 25.32%0.2 296 1992/03/08 01:00:00 1992/03/08 11:00:00 11 1.52 25.41%0.2 297 1992/03/27 05:00:00 1992/03/27 06:00:00 2 1.52 25.49%0.2 298 1994/01/24 22:00:00 1994/01/26 06:00:00 33 1.52 25.58%0.2 299 1994/01/27 14:00:00 1994/01/27 15:00:00 2 1.52 25.67%0.19 300 1996/02/25 08:00:00 1996/02/26 19:00:00 36 1.52 25.75%0.19 301 2006/02/17 21:00:00 2006/02/19 11:00:00 39 1.52 25.84%0.19 302 1961/01/26 07:00:00 1961/01/26 19:00:00 13 1.51 25.92%0.19 303 1978/12/16 22:00:00 1978/12/19 17:00:00 68 1.51 26.01%0.19 304 1981/12/30 06:00:00 1981/12/31 04:00:00 23 1.51 26.09%0.19 305 1984/12/26 13:00:00 1984/12/27 21:00:00 33 1.51 26.18%0.19 306 1992/01/05 08:00:00 1992/01/06 05:00:00 22 1.51 26.27%0.19 307 1992/01/07 07:00:00 1992/01/08 11:00:00 29 1.51 26.35%0.19 308 1955/02/26 10:00:00 1955/02/27 21:00:00 36 1.5 26.44%0.19 309 1972/01/18 21:00:00 1972/01/19 04:00:00 8 1.5 26.52%0.19 310 1976/12/30 13:00:00 1976/12/31 10:00:00 22 1.5 26.61%0.19 311 1977/01/05 13:00:00 1977/01/07 07:00:00 43 1.5 26.70%0.19 312 1977/12/17 23:00:00 1977/12/18 07:00:00 9 1.5 26.78%0.19 313 1980/01/17 18:00:00 1980/01/19 02:00:00 33 1.5 26.87%0.19 314 1980/12/07 10:00:00 1980/12/07 13:00:00 4 1.5 26.95%0.19 315 1982/01/05 04:00:00 1982/01/05 17:00:00 14 1.5 27.04%0.18 316 1982/01/28 16:00:00 1982/01/29 01:00:00 10 1.5 27.12%0.18 317 1983/12/03 14:00:00 1983/12/03 21:00:00 8 1.5 27.21%0.18 318 1984/12/16 02:00:00 1984/12/16 04:00:00 3 1.5 27.30%0.18 319 1984/12/18 06:00:00 1984/12/20 04:00:00 47 1.5 27.38%0.18 320 1986/01/30 02:00:00 1986/01/30 13:00:00 12 1.5 27.47%0.18 321 1987/01/05 09:00:00 1987/01/07 06:00:00 46 1.5 27.55%0.18 7/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 322 1988/12/15 08:00:00 1988/12/16 15:00:00 32 1.5 27.64%0.18 323 1995/01/07 11:00:00 1995/01/08 11:00:00 25 1.5 27.73%0.18 324 1957/10/13 19:00:00 1957/10/14 13:00:00 19 1.49 27.81%0.18 325 1959/12/20 22:00:00 1959/12/21 11:00:00 14 1.49 27.90%0.18 326 1972/11/11 00:00:00 1972/11/11 11:00:00 12 1.49 27.98%0.18 327 1978/01/19 05:00:00 1978/01/19 12:00:00 8 1.49 28.07%0.18 328 1978/11/21 16:00:00 1978/11/22 01:00:00 10 1.49 28.15%0.18 329 1979/01/30 17:00:00 1979/02/02 19:00:00 75 1.49 28.24%0.18 330 1979/02/21 00:00:00 1979/02/21 07:00:00 8 1.49 28.33%0.18 331 1981/02/08 16:00:00 1981/02/09 07:00:00 16 1.49 28.41%0.18 332 1982/02/09 18:00:00 1982/02/10 20:00:00 27 1.49 28.50%0.18 333 1982/11/09 14:00:00 1982/11/10 23:00:00 34 1.49 28.58%0.17 334 1984/11/24 15:00:00 1984/11/24 21:00:00 7 1.49 28.67%0.17 335 1985/02/09 04:00:00 1985/02/09 13:00:00 10 1.49 28.76%0.17 336 1986/03/10 05:00:00 1986/03/11 04:00:00 24 1.49 28.84%0.17 337 1992/02/06 06:00:00 1992/02/07 12:00:00 31 1.49 28.93%0.17 338 1994/02/07 02:00:00 1994/02/08 07:00:00 30 1.49 29.01%0.17 339 1996/02/20 05:00:00 1996/02/22 00:00:00 44 1.49 29.10%0.17 340 1997/01/25 14:00:00 1997/01/27 07:00:00 42 1.49 29.18%0.17 341 2005/02/11 01:00:00 2005/02/13 08:00:00 56 1.49 29.27%0.17 342 2006/02/27 18:00:00 2006/02/28 11:00:00 18 1.49 29.36%0.17 343 1973/03/08 10:00:00 1973/03/08 16:00:00 7 1.48 29.44%0.17 344 1973/03/11 01:00:00 1973/03/12 10:00:00 34 1.48 29.53%0.17 345 1978/03/11 17:00:00 1978/03/12 11:00:00 19 1.48 29.61%0.17 346 1979/03/01 07:00:00 1979/03/01 18:00:00 12 1.48 29.70%0.17 347 1979/03/27 03:00:00 1979/03/28 10:00:00 32 1.48 29.79%0.17 348 1980/03/10 14:00:00 1980/03/10 17:00:00 4 1.48 29.87%0.17 349 1980/03/25 21:00:00 1980/03/26 01:00:00 5 1.48 29.96%0.17 350 1981/02/28 11:00:00 1981/03/03 02:00:00 64 1.48 30.04%0.17 351 1981/03/05 01:00:00 1981/03/05 21:00:00 21 1.48 30.13%0.17 352 1983/03/17 01:00:00 1983/03/19 01:00:00 49 1.48 30.21%0.17 353 1983/03/21 03:00:00 1983/03/22 21:00:00 43 1.48 30.30%0.16 354 1989/03/25 09:00:00 1989/03/26 06:00:00 22 1.48 30.39%0.16 355 1992/03/02 05:00:00 1992/03/02 20:00:00 16 1.48 30.47%0.16 356 1964/03/22 19:00:00 1964/03/24 11:00:00 41 1.47 30.56%0.16 357 1976/04/15 14:00:00 1976/04/16 11:00:00 22 1.47 30.64%0.16 358 1980/04/22 10:00:00 1980/04/23 05:00:00 20 1.47 30.73%0.16 359 1982/09/26 02:00:00 1982/09/26 17:00:00 16 1.47 30.82%0.16 360 1983/04/18 01:00:00 1983/04/18 09:00:00 9 1.47 30.90%0.16 361 1983/04/29 05:00:00 1983/04/30 02:00:00 22 1.47 30.99%0.16 362 1975/04/16 11:00:00 1975/04/17 09:00:00 23 1.46 31.07%0.16 363 1976/07/15 11:00:00 1976/07/15 17:00:00 7 1.46 31.16%0.16 364 1976/08/30 09:00:00 1976/08/30 13:00:00 5 1.46 31.24%0.16 365 2000/04/17 16:00:00 2000/04/18 10:00:00 19 1.46 31.33%0.16 366 1967/04/18 18:00:00 1967/04/20 10:00:00 41 1.44 31.42%0.16 367 1957/12/15 07:00:00 1957/12/17 07:00:00 49 1.42 31.50%0.16 368 1974/01/07 13:00:00 1974/01/09 17:00:00 53 1.42 31.59%0.16 8/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 369 1963/11/15 15:00:00 1963/11/15 20:00:00 6 1.41 31.67%0.16 370 1971/02/23 02:00:00 1971/02/23 05:00:00 4 1.41 31.76%0.16 371 2000/02/20 02:00:00 2000/02/24 18:00:00 113 1.41 31.85%0.16 372 1957/10/30 20:00:00 1957/10/31 07:00:00 12 1.4 31.93%0.16 373 1962/01/12 23:00:00 1962/01/13 02:00:00 4 1.34 32.02%0.16 374 1998/01/09 02:00:00 1998/01/11 18:00:00 65 1.34 32.10%0.16 375 1955/02/16 17:00:00 1955/02/18 08:00:00 40 1.33 32.19%0.16 376 1970/03/04 20:00:00 1970/03/05 06:00:00 11 1.33 32.27%0.15 377 1973/02/06 01:00:00 1973/02/07 05:00:00 29 1.33 32.36%0.15 378 1954/03/20 08:00:00 1954/03/25 12:00:00 125 1.32 32.45%0.15 379 1958/03/27 12:00:00 1958/03/27 16:00:00 5 1.32 32.53%0.15 380 1964/10/15 10:00:00 1964/10/15 13:00:00 4 1.32 32.62%0.15 381 1956/01/31 03:00:00 1956/01/31 12:00:00 10 1.27 32.70%0.15 382 1962/02/07 14:00:00 1962/02/11 08:00:00 91 1.26 32.79%0.15 383 1953/10/22 04:00:00 1953/10/22 10:00:00 7 1.25 32.88%0.15 384 1957/04/20 13:00:00 1957/04/21 08:00:00 20 1.25 32.96%0.15 385 1966/10/10 11:00:00 1966/10/10 16:00:00 6 1.25 33.05%0.15 386 1998/03/25 02:00:00 1998/03/29 20:00:00 115 1.25 33.13%0.15 387 1998/03/31 02:00:00 1998/04/03 18:00:00 89 1.25 33.22%0.15 388 1952/04/10 09:00:00 1952/04/10 23:00:00 15 1.24 33.30%0.15 389 1955/04/22 00:00:00 1955/04/22 11:00:00 12 1.24 33.39%0.15 390 1955/04/30 18:00:00 1955/05/02 11:00:00 42 1.24 33.48%0.15 391 1964/12/31 21:00:00 1964/12/31 23:00:00 3 1.21 33.56%0.15 392 1992/12/18 01:00:00 1992/12/18 02:00:00 2 1.21 33.65%0.15 393 1995/01/15 00:00:00 1995/01/17 09:00:00 58 1.21 33.73%0.15 394 1996/01/21 18:00:00 1996/01/22 08:00:00 15 1.21 33.82%0.15 395 1999/09/18 16:00:00 1999/09/18 17:00:00 2 1.21 33.91%0.15 396 2000/10/26 08:00:00 2000/10/27 10:00:00 27 1.21 33.99%0.15 397 2000/11/30 08:00:00 2000/11/30 09:00:00 2 1.21 34.08%0.15 398 2004/11/21 06:00:00 2004/11/21 08:00:00 3 1.21 34.16%0.15 399 2005/09/20 04:00:00 2005/09/20 06:00:00 3 1.21 34.25%0.15 400 2005/10/16 17:00:00 2005/10/18 11:00:00 43 1.21 34.33%0.15 401 2006/03/20 02:00:00 2006/03/21 05:00:00 28 1.21 34.42%0.15 402 2006/04/04 16:00:00 2006/04/05 08:00:00 17 1.21 34.51%0.14 403 2006/12/27 07:00:00 2006/12/27 08:00:00 2 1.21 34.59%0.14 404 1957/01/07 05:00:00 1957/01/08 10:00:00 30 1.2 34.68%0.14 405 1965/01/24 05:00:00 1965/01/24 10:00:00 6 1.2 34.76%0.14 406 1992/12/27 16:00:00 1992/12/28 04:00:00 13 1.2 34.85%0.14 407 1952/12/20 09:00:00 1952/12/20 16:00:00 8 1.19 34.94%0.14 408 1954/01/11 17:00:00 1954/01/13 07:00:00 39 1.19 35.02%0.14 409 1961/11/20 13:00:00 1961/11/20 21:00:00 9 1.19 35.11%0.14 410 1996/01/31 02:00:00 1996/02/02 00:00:00 47 1.19 35.19%0.14 411 1996/02/27 20:00:00 1996/02/27 22:00:00 3 1.19 35.28%0.14 412 1996/12/09 14:00:00 1996/12/12 04:00:00 63 1.19 35.36%0.14 413 1998/12/01 15:00:00 1998/12/01 19:00:00 5 1.19 35.45%0.14 414 2005/12/31 15:00:00 2006/01/03 03:00:00 61 1.19 35.54%0.14 415 2007/02/28 04:00:00 2007/03/01 01:00:00 22 1.19 35.62%0.14 9/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 416 1995/02/13 12:00:00 1995/02/14 21:00:00 34 1.18 35.71%0.14 417 1999/03/25 13:00:00 1999/03/25 20:00:00 8 1.18 35.79%0.14 418 2000/02/10 15:00:00 2000/02/14 20:00:00 102 1.18 35.88%0.14 419 2007/02/11 10:00:00 2007/02/12 02:00:00 17 1.18 35.97%0.14 420 1955/03/10 19:00:00 1955/03/11 05:00:00 11 1.17 36.05%0.14 421 1963/03/28 09:00:00 1963/03/28 16:00:00 8 1.17 36.14%0.14 422 1975/03/10 10:00:00 1975/03/11 16:00:00 31 1.17 36.22%0.14 423 2004/03/01 21:00:00 2004/03/02 05:00:00 9 1.17 36.31%0.14 424 1967/04/21 20:00:00 1967/04/22 11:00:00 16 1.16 36.39%0.14 425 1995/06/15 19:00:00 1995/06/17 01:00:00 31 1.16 36.48%0.14 426 2006/05/22 03:00:00 2006/05/22 08:00:00 6 1.16 36.57%0.14 427 1952/03/12 21:00:00 1952/03/13 11:00:00 15 1.14 36.65%0.14 428 1967/11/26 18:00:00 1967/11/26 19:00:00 2 1.14 36.74%0.14 429 1971/10/16 01:00:00 1971/10/17 09:00:00 33 1.14 36.82%0.14 430 1974/05/19 08:00:00 1974/05/19 09:00:00 2 1.14 36.91%0.14 431 1962/02/15 18:00:00 1962/02/17 04:00:00 35 1.12 37.00%0.14 432 1964/12/27 06:00:00 1964/12/28 16:00:00 35 1.12 37.08%0.13 433 1955/01/16 07:00:00 1955/01/16 17:00:00 11 1.11 37.17%0.13 434 1955/11/14 04:00:00 1955/11/14 09:00:00 6 1.11 37.25%0.13 435 1975/11/27 13:00:00 1975/11/28 23:00:00 35 1.11 37.34%0.13 436 1953/04/20 09:00:00 1953/04/20 12:00:00 4 1.08 37.42%0.13 437 1957/06/10 01:00:00 1957/06/10 06:00:00 6 1.08 37.51%0.13 438 1958/05/11 08:00:00 1958/05/11 16:00:00 9 1.08 37.60%0.13 439 1952/12/28 06:00:00 1952/12/28 18:00:00 13 1.04 37.68%0.13 440 1960/11/26 16:00:00 1960/11/26 21:00:00 6 1.04 37.77%0.13 441 1967/01/24 11:00:00 1967/01/25 00:00:00 14 1.04 37.85%0.13 442 1968/02/13 01:00:00 1968/02/13 11:00:00 11 1.04 37.94%0.13 443 1968/11/14 16:00:00 1968/11/15 08:00:00 17 1.03 38.03%0.13 444 1970/02/10 01:00:00 1970/02/11 04:00:00 28 1.03 38.11%0.13 445 1971/12/27 11:00:00 1971/12/28 15:00:00 29 1.03 38.20%0.13 446 1974/03/02 08:00:00 1974/03/03 15:00:00 32 1.02 38.28%0.13 447 1953/04/27 17:00:00 1953/04/28 01:00:00 9 1.01 38.37%0.13 448 1957/04/18 01:00:00 1957/04/18 10:00:00 10 1.01 38.45%0.13 449 1963/04/17 03:00:00 1963/04/17 12:00:00 10 1.01 38.54%0.13 450 1963/09/04 02:00:00 1963/09/04 14:00:00 13 1.01 38.63%0.13 451 1998/04/11 02:00:00 1998/04/12 02:00:00 25 1.01 38.71%0.13 452 1960/03/13 04:00:00 1960/03/13 05:00:00 2 0.99 38.80%0.13 453 1965/12/14 15:00:00 1965/12/16 09:00:00 43 0.97 38.88%0.13 454 1975/12/20 13:00:00 1975/12/20 20:00:00 8 0.97 38.97%0.13 455 1961/11/25 00:00:00 1961/11/26 01:00:00 26 0.96 39.06%0.13 456 1969/01/28 00:00:00 1969/01/29 02:00:00 27 0.96 39.14%0.13 457 1971/01/12 18:00:00 1971/01/13 08:00:00 15 0.96 39.23%0.13 458 1956/02/23 04:00:00 1956/02/24 13:00:00 34 0.95 39.31%0.13 459 1974/10/28 04:00:00 1974/10/29 11:00:00 32 0.95 39.40%0.13 460 1971/03/13 02:00:00 1971/03/13 08:00:00 7 0.94 39.48%0.13 461 2001/03/06 02:00:00 2001/03/07 22:00:00 45 0.94 39.57%0.13 462 1976/04/04 02:00:00 1976/04/05 02:00:00 25 0.93 39.66%0.13 10/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 463 1951/10/03 01:00:00 1951/10/09 09:00:00 153 0.91 39.74%0.13 464 1957/01/20 17:00:00 1957/01/21 06:00:00 14 0.91 39.83%0.13 465 1962/03/06 06:00:00 1962/03/06 21:00:00 16 0.91 39.91%0.13 466 1976/03/03 00:00:00 1976/03/03 03:00:00 4 0.91 40.00%0.12 467 1992/12/29 12:00:00 1992/12/29 19:00:00 8 0.91 40.09%0.12 468 1993/01/10 11:00:00 1993/01/10 14:00:00 4 0.91 40.17%0.12 469 1995/05/01 12:00:00 1995/05/01 13:00:00 2 0.91 40.26%0.12 470 1995/12/23 09:00:00 1995/12/23 11:00:00 3 0.91 40.34%0.12 471 1996/10/01 10:00:00 1996/10/01 11:00:00 2 0.91 40.43%0.12 472 1998/11/28 06:00:00 1998/11/29 01:00:00 20 0.91 40.52%0.12 473 1999/01/31 10:00:00 1999/02/01 09:00:00 24 0.91 40.60%0.12 474 1999/06/02 01:00:00 1999/06/02 09:00:00 9 0.91 40.69%0.12 475 1999/06/03 23:00:00 1999/06/04 01:00:00 3 0.91 40.77%0.12 476 2004/04/17 13:00:00 2004/04/17 14:00:00 2 0.91 40.86%0.12 477 1972/12/04 11:00:00 1972/12/04 20:00:00 10 0.9 40.94%0.12 478 1998/12/06 04:00:00 1998/12/06 07:00:00 4 0.9 41.03%0.12 479 1952/01/25 02:00:00 1952/01/25 13:00:00 12 0.89 41.12%0.12 480 1970/01/16 03:00:00 1970/01/16 23:00:00 21 0.89 41.20%0.12 481 1971/12/22 04:00:00 1971/12/22 23:00:00 20 0.89 41.29%0.12 482 1995/01/21 02:00:00 1995/01/21 05:00:00 4 0.89 41.37%0.12 483 1996/12/27 14:00:00 1996/12/28 06:00:00 17 0.89 41.46%0.12 484 1997/01/22 01:00:00 1997/01/23 22:00:00 46 0.89 41.55%0.12 485 1999/02/04 07:00:00 1999/02/05 07:00:00 25 0.89 41.63%0.12 486 2004/12/04 11:00:00 2004/12/05 18:00:00 32 0.89 41.72%0.12 487 2007/12/07 03:00:00 2007/12/09 02:00:00 48 0.89 41.80%0.12 488 2007/12/18 21:00:00 2007/12/19 15:00:00 19 0.89 41.89%0.12 489 1960/11/03 12:00:00 1960/11/03 21:00:00 10 0.88 41.97%0.12 490 1964/11/09 11:00:00 1964/11/10 19:00:00 33 0.88 42.06%0.12 491 1993/02/23 16:00:00 1993/02/24 08:00:00 17 0.88 42.15%0.12 492 1993/12/11 15:00:00 1993/12/12 01:00:00 11 0.88 42.23%0.12 493 1994/11/10 10:00:00 1994/11/10 14:00:00 5 0.88 42.32%0.12 494 1996/01/16 18:00:00 1996/01/16 23:00:00 6 0.88 42.40%0.12 495 2007/02/22 20:00:00 2007/02/22 22:00:00 3 0.88 42.49%0.12 496 2008/02/24 06:00:00 2008/02/24 13:00:00 8 0.88 42.58%0.12 497 1995/03/21 10:00:00 1995/03/21 16:00:00 7 0.87 42.66%0.12 498 1996/03/12 16:00:00 1996/03/13 23:00:00 32 0.87 42.75%0.12 499 2001/03/10 02:00:00 2001/03/11 02:00:00 25 0.87 42.83%0.12 500 2005/03/22 19:00:00 2005/03/22 23:00:00 5 0.87 42.92%0.12 501 1999/04/11 18:00:00 1999/04/12 04:00:00 11 0.86 43.00%0.12 502 1951/10/10 23:00:00 1951/10/12 05:00:00 31 0.83 43.09%0.12 503 1952/04/07 22:00:00 1952/04/08 07:00:00 10 0.83 43.18%0.12 504 1958/11/11 05:00:00 1958/11/11 06:00:00 2 0.83 43.26%0.12 505 1954/01/24 03:00:00 1954/01/25 12:00:00 34 0.82 43.35%0.12 506 1955/01/01 18:00:00 1955/01/02 06:00:00 13 0.81 43.43%0.12 507 1969/01/13 14:00:00 1969/01/14 16:00:00 27 0.81 43.52%0.11 508 1969/12/08 22:00:00 1969/12/09 02:00:00 5 0.81 43.61%0.11 509 1973/01/09 10:00:00 1973/01/10 01:00:00 16 0.81 43.69%0.11 11/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 510 1974/12/28 06:00:00 1974/12/29 10:00:00 29 0.81 43.78%0.11 511 1997/12/18 04:00:00 1997/12/19 00:00:00 21 0.81 43.86%0.11 512 1959/02/08 01:00:00 1959/02/09 04:00:00 28 0.8 43.95%0.11 513 1960/02/08 17:00:00 1960/02/10 08:00:00 40 0.8 44.03%0.11 514 1963/02/14 08:00:00 1963/02/14 12:00:00 5 0.8 44.12%0.11 515 1975/02/03 06:00:00 1975/02/05 01:00:00 44 0.8 44.21%0.11 516 1965/03/06 21:00:00 1965/03/07 01:00:00 5 0.79 44.29%0.11 517 1998/03/13 04:00:00 1998/03/14 23:00:00 44 0.79 44.38%0.11 518 1951/10/14 09:00:00 1951/10/15 10:00:00 26 0.76 44.46%0.11 519 1955/01/30 22:00:00 1955/01/31 08:00:00 11 0.76 44.55%0.11 520 1965/12/12 18:00:00 1965/12/13 11:00:00 18 0.76 44.64%0.11 521 1966/01/19 23:00:00 1966/01/20 00:00:00 2 0.76 44.72%0.11 522 1967/03/29 06:00:00 1967/03/29 07:00:00 2 0.76 44.81%0.11 523 1967/03/31 10:00:00 1967/03/31 13:00:00 4 0.76 44.89%0.11 524 1969/03/13 01:00:00 1969/03/13 06:00:00 6 0.76 44.98%0.11 525 1970/04/27 10:00:00 1970/04/27 11:00:00 2 0.76 45.06%0.11 526 1971/12/02 21:00:00 1971/12/04 03:00:00 31 0.76 45.15%0.11 527 1972/01/09 08:00:00 1972/01/09 09:00:00 2 0.76 45.24%0.11 528 1973/11/17 03:00:00 1973/11/18 22:00:00 44 0.76 45.32%0.11 529 1973/12/01 18:00:00 1973/12/01 19:00:00 2 0.76 45.41%0.11 530 1974/01/01 04:00:00 1974/01/01 07:00:00 4 0.76 45.49%0.11 531 1975/02/09 05:00:00 1975/02/10 08:00:00 28 0.76 45.58%0.11 532 1975/03/22 08:00:00 1975/03/22 13:00:00 6 0.76 45.67%0.11 533 1976/05/07 00:00:00 1976/05/07 01:00:00 2 0.76 45.75%0.11 534 1976/06/01 08:00:00 1976/06/01 09:00:00 2 0.76 45.84%0.11 535 1976/06/10 09:00:00 1976/06/10 10:00:00 2 0.76 45.92%0.11 536 1976/06/30 16:00:00 1976/06/30 17:00:00 2 0.76 46.01%0.11 537 1976/07/26 23:00:00 1976/07/27 01:00:00 3 0.76 46.09%0.11 538 1976/11/12 00:00:00 1976/11/12 06:00:00 7 0.76 46.18%0.11 539 1976/11/27 10:00:00 1976/11/27 11:00:00 2 0.76 46.27%0.11 540 1977/01/26 00:00:00 1977/01/26 01:00:00 2 0.76 46.35%0.11 541 1977/01/29 01:00:00 1977/01/29 03:00:00 3 0.76 46.44%0.11 542 1977/02/22 01:00:00 1977/02/22 05:00:00 5 0.76 46.52%0.11 543 1977/02/24 14:00:00 1977/02/24 23:00:00 10 0.76 46.61%0.11 544 1977/03/16 12:00:00 1977/03/21 11:00:00 120 0.76 46.70%0.11 545 1977/03/22 12:00:00 1977/03/22 13:00:00 2 0.76 46.78%0.11 546 1977/05/12 09:00:00 1977/05/12 10:00:00 2 0.76 46.87%0.11 547 1977/07/14 08:00:00 1977/07/14 09:00:00 2 0.76 46.95%0.11 548 1977/07/15 14:00:00 1977/07/15 15:00:00 2 0.76 47.04%0.11 549 1977/07/20 09:00:00 1977/07/20 10:00:00 2 0.76 47.12%0.11 550 1977/07/22 11:00:00 1977/07/22 12:00:00 2 0.76 47.21%0.11 551 1977/07/27 12:00:00 1977/07/27 13:00:00 2 0.76 47.30%0.11 552 1977/09/05 06:00:00 1977/09/05 07:00:00 2 0.76 47.38%0.11 553 1977/09/09 21:00:00 1977/09/09 22:00:00 2 0.76 47.47%0.11 554 1977/10/05 18:00:00 1977/10/05 19:00:00 2 0.76 47.55%0.11 555 1977/12/23 03:00:00 1977/12/23 04:00:00 2 0.76 47.64%0.11 556 1977/12/25 16:00:00 1977/12/26 22:00:00 31 0.76 47.73%0.1 12/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 557 1978/01/30 10:00:00 1978/01/30 23:00:00 14 0.76 47.81%0.1 558 1978/03/22 14:00:00 1978/03/23 14:00:00 25 0.76 47.90%0.1 559 1978/04/02 18:00:00 1978/04/02 19:00:00 2 0.76 47.98%0.1 560 1978/04/07 01:00:00 1978/04/07 02:00:00 2 0.76 48.07%0.1 561 1978/04/08 11:00:00 1978/04/08 17:00:00 7 0.76 48.15%0.1 562 1978/04/15 19:00:00 1978/04/15 21:00:00 3 0.76 48.24%0.1 563 1978/04/25 16:00:00 1978/04/25 17:00:00 2 0.76 48.33%0.1 564 1978/09/16 11:00:00 1978/09/16 12:00:00 2 0.76 48.41%0.1 565 1978/11/10 15:00:00 1978/11/12 10:00:00 44 0.76 48.50%0.1 566 1978/11/13 20:00:00 1978/11/13 21:00:00 2 0.76 48.58%0.1 567 1978/11/15 09:00:00 1978/11/15 10:00:00 2 0.76 48.67%0.1 568 1978/11/24 08:00:00 1978/11/24 13:00:00 6 0.76 48.76%0.1 569 1978/12/01 18:00:00 1978/12/01 19:00:00 2 0.76 48.84%0.1 570 1979/01/09 10:00:00 1979/01/09 14:00:00 5 0.76 48.93%0.1 571 1979/01/17 10:00:00 1979/01/19 04:00:00 43 0.76 49.01%0.1 572 1979/01/25 14:00:00 1979/01/25 15:00:00 2 0.76 49.10%0.1 573 1979/02/23 01:00:00 1979/02/23 05:00:00 5 0.76 49.18%0.1 574 1979/05/07 10:00:00 1979/05/07 11:00:00 2 0.76 49.27%0.1 575 1979/08/19 14:00:00 1979/08/19 15:00:00 2 0.76 49.36%0.1 576 1979/10/04 22:00:00 1979/10/04 23:00:00 2 0.76 49.44%0.1 577 1979/10/20 01:00:00 1979/10/20 16:00:00 16 0.76 49.53%0.1 578 1979/11/04 22:00:00 1979/11/04 23:00:00 2 0.76 49.61%0.1 579 1979/11/12 11:00:00 1979/11/12 12:00:00 2 0.76 49.70%0.1 580 1979/12/21 05:00:00 1979/12/21 12:00:00 8 0.76 49.79%0.1 581 1979/12/25 09:00:00 1979/12/25 10:00:00 2 0.76 49.87%0.1 582 1980/01/07 07:00:00 1980/01/07 08:00:00 2 0.76 49.96%0.1 583 1980/01/14 00:00:00 1980/01/14 01:00:00 2 0.76 50.04%0.1 584 1980/03/18 16:00:00 1980/03/18 17:00:00 2 0.76 50.13%0.1 585 1980/03/21 09:00:00 1980/03/21 23:00:00 15 0.76 50.21%0.1 586 1980/04/01 15:00:00 1980/04/01 16:00:00 2 0.76 50.30%0.1 587 1980/04/21 02:00:00 1980/04/21 03:00:00 2 0.76 50.39%0.1 588 1980/04/28 15:00:00 1980/04/29 09:00:00 19 0.76 50.47%0.1 589 1980/05/02 10:00:00 1980/05/02 11:00:00 2 0.76 50.56%0.1 590 1980/05/08 10:00:00 1980/05/08 11:00:00 2 0.76 50.64%0.1 591 1980/05/09 12:00:00 1980/05/10 13:00:00 26 0.76 50.73%0.1 592 1980/12/04 10:00:00 1980/12/05 09:00:00 24 0.76 50.82%0.1 593 1981/01/11 06:00:00 1981/01/11 07:00:00 2 0.76 50.90%0.1 594 1981/01/12 10:00:00 1981/01/12 11:00:00 2 0.76 50.99%0.1 595 1981/03/10 17:00:00 1981/03/10 18:00:00 2 0.76 51.07%0.1 596 1981/03/14 12:00:00 1981/03/14 13:00:00 2 0.76 51.16%0.1 597 1981/03/18 16:00:00 1981/03/18 17:00:00 2 0.76 51.24%0.1 598 1981/04/02 04:00:00 1981/04/02 10:00:00 7 0.76 51.33%0.1 599 1981/04/18 20:00:00 1981/04/19 06:00:00 11 0.76 51.42%0.1 600 1981/04/26 17:00:00 1981/04/26 18:00:00 2 0.76 51.50%0.1 601 1981/05/01 11:00:00 1981/05/01 12:00:00 2 0.76 51.59%0.1 602 1981/10/11 06:00:00 1981/10/11 07:00:00 2 0.76 51.67%0.1 603 1981/11/16 12:00:00 1981/11/16 13:00:00 2 0.76 51.76%0.1 13/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 604 1981/12/21 01:00:00 1981/12/21 02:00:00 2 0.76 51.85%0.1 605 1982/02/08 12:00:00 1982/02/08 13:00:00 2 0.76 51.93%0.1 606 1982/02/17 01:00:00 1982/02/17 02:00:00 2 0.76 52.02%0.1 607 1982/03/25 20:00:00 1982/03/26 05:00:00 10 0.76 52.10%0.1 608 1982/03/28 19:00:00 1982/03/29 02:00:00 8 0.76 52.19%0.1 609 1982/04/04 11:00:00 1982/04/04 12:00:00 2 0.76 52.27%0.1 610 1982/04/11 19:00:00 1982/04/11 20:00:00 2 0.76 52.36%0.1 611 1982/05/06 13:00:00 1982/05/06 14:00:00 2 0.76 52.45%0.1 612 1982/06/17 12:00:00 1982/06/17 13:00:00 2 0.76 52.53%0.1 613 1982/09/15 06:00:00 1982/09/15 07:00:00 2 0.76 52.62%0.1 614 1982/09/16 10:00:00 1982/09/17 13:00:00 28 0.76 52.70%0.09 615 1982/10/26 06:00:00 1982/10/26 07:00:00 2 0.76 52.79%0.09 616 1982/11/18 23:00:00 1982/11/19 08:00:00 10 0.76 52.88%0.09 617 1982/11/20 09:00:00 1982/11/20 10:00:00 2 0.76 52.96%0.09 618 1982/11/29 10:00:00 1982/11/30 14:00:00 29 0.76 53.05%0.09 619 1982/12/29 18:00:00 1982/12/29 21:00:00 4 0.76 53.13%0.09 620 1983/01/05 08:00:00 1983/01/05 09:00:00 2 0.76 53.22%0.09 621 1983/01/17 05:00:00 1983/01/17 06:00:00 2 0.76 53.30%0.09 622 1983/01/18 10:00:00 1983/01/19 10:00:00 25 0.76 53.39%0.09 623 1983/01/22 14:00:00 1983/01/23 13:00:00 24 0.76 53.48%0.09 624 1983/01/24 18:00:00 1983/01/25 17:00:00 24 0.76 53.56%0.09 625 1983/02/02 14:00:00 1983/02/03 17:00:00 28 0.76 53.65%0.09 626 1983/02/23 23:00:00 1983/02/24 23:00:00 25 0.76 53.73%0.09 627 1983/03/28 07:00:00 1983/03/28 08:00:00 2 0.76 53.82%0.09 628 1983/04/12 06:00:00 1983/04/13 09:00:00 28 0.76 53.91%0.09 629 1983/05/01 08:00:00 1983/05/02 08:00:00 25 0.76 53.99%0.09 630 1983/05/06 08:00:00 1983/05/06 09:00:00 2 0.76 54.08%0.09 631 1983/08/06 04:00:00 1983/08/06 05:00:00 2 0.76 54.16%0.09 632 1983/08/18 07:00:00 1983/08/18 11:00:00 5 0.76 54.25%0.09 633 1983/10/07 08:00:00 1983/10/08 03:00:00 20 0.76 54.33%0.09 634 1983/11/17 23:00:00 1983/11/18 00:00:00 2 0.76 54.42%0.09 635 1983/11/20 07:00:00 1983/11/20 20:00:00 14 0.76 54.51%0.09 636 1983/12/15 13:00:00 1983/12/15 14:00:00 2 0.76 54.59%0.09 637 1983/12/19 14:00:00 1983/12/19 15:00:00 2 0.76 54.68%0.09 638 1984/01/04 15:00:00 1984/01/04 16:00:00 2 0.76 54.76%0.09 639 1984/01/15 16:00:00 1984/01/16 08:00:00 17 0.76 54.85%0.09 640 1984/02/10 04:00:00 1984/02/10 05:00:00 2 0.76 54.94%0.09 641 1984/07/15 14:00:00 1984/07/15 15:00:00 2 0.76 55.02%0.09 642 1984/11/08 06:00:00 1984/11/08 07:00:00 2 0.76 55.11%0.09 643 1984/11/16 14:00:00 1984/11/16 15:00:00 2 0.76 55.19%0.09 644 1984/11/23 05:00:00 1984/11/23 06:00:00 2 0.76 55.28%0.09 645 1984/12/03 07:00:00 1984/12/03 10:00:00 4 0.76 55.36%0.09 646 1984/12/10 19:00:00 1984/12/11 06:00:00 12 0.76 55.45%0.09 647 1984/12/12 20:00:00 1984/12/12 21:00:00 2 0.76 55.54%0.09 648 1985/01/07 10:00:00 1985/01/08 03:00:00 18 0.76 55.62%0.09 649 1985/01/28 14:00:00 1985/01/29 02:00:00 13 0.76 55.71%0.09 650 1985/02/02 02:00:00 1985/02/02 12:00:00 11 0.76 55.79%0.09 14/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 651 1985/02/03 21:00:00 1985/02/03 22:00:00 2 0.76 55.88%0.09 652 1985/02/20 19:00:00 1985/02/20 20:00:00 2 0.76 55.97%0.09 653 1985/03/27 06:00:00 1985/03/28 12:00:00 31 0.76 56.05%0.09 654 1985/04/21 17:00:00 1985/04/21 18:00:00 2 0.76 56.14%0.09 655 1985/09/18 11:00:00 1985/09/18 13:00:00 3 0.76 56.22%0.09 656 1985/10/06 06:00:00 1985/10/06 07:00:00 2 0.76 56.31%0.09 657 1985/10/07 09:00:00 1985/10/07 10:00:00 2 0.76 56.39%0.09 658 1985/12/02 10:00:00 1985/12/03 00:00:00 15 0.76 56.48%0.09 659 1986/02/07 21:00:00 1986/02/08 14:00:00 18 0.76 56.57%0.09 660 1986/02/13 07:00:00 1986/02/13 13:00:00 7 0.76 56.65%0.09 661 1986/02/17 05:00:00 1986/02/17 06:00:00 2 0.76 56.74%0.09 662 1986/02/23 06:00:00 1986/02/23 07:00:00 2 0.76 56.82%0.09 663 1986/03/01 07:00:00 1986/03/01 08:00:00 2 0.76 56.91%0.09 664 1986/03/12 10:00:00 1986/03/12 14:00:00 5 0.76 57.00%0.09 665 1986/03/13 18:00:00 1986/03/14 03:00:00 10 0.76 57.08%0.09 666 1986/04/01 08:00:00 1986/04/01 09:00:00 2 0.76 57.17%0.09 667 1986/04/06 00:00:00 1986/04/06 11:00:00 12 0.76 57.25%0.09 668 1986/10/11 07:00:00 1986/10/11 08:00:00 2 0.76 57.34%0.09 669 1986/11/05 12:00:00 1986/11/05 13:00:00 2 0.76 57.42%0.09 670 1986/12/06 05:00:00 1986/12/07 04:00:00 24 0.76 57.51%0.09 671 1987/01/28 07:00:00 1987/01/28 08:00:00 2 0.76 57.60%0.09 672 1987/02/03 12:00:00 1987/02/03 13:00:00 2 0.76 57.68%0.09 673 1987/02/05 11:00:00 1987/02/05 12:00:00 2 0.76 57.77%0.09 674 1987/03/05 19:00:00 1987/03/06 14:00:00 20 0.76 57.85%0.09 675 1987/03/15 08:00:00 1987/03/15 10:00:00 3 0.76 57.94%0.09 676 1987/03/22 00:00:00 1987/03/22 03:00:00 4 0.76 58.03%0.09 677 1987/03/24 21:00:00 1987/03/25 21:00:00 25 0.76 58.11%0.09 678 1987/07/17 08:00:00 1987/07/17 12:00:00 5 0.76 58.20%0.09 679 1987/08/14 09:00:00 1987/08/14 10:00:00 2 0.76 58.28%0.09 680 1987/10/23 06:00:00 1987/10/23 07:00:00 2 0.76 58.37%0.09 681 1987/10/28 00:00:00 1987/10/28 01:00:00 2 0.76 58.45%0.09 682 1987/10/31 05:00:00 1987/11/01 00:00:00 20 0.76 58.54%0.09 683 1987/11/02 04:00:00 1987/11/02 05:00:00 2 0.76 58.63%0.09 684 1987/11/04 18:00:00 1987/11/05 11:00:00 18 0.76 58.71%0.09 685 1987/11/14 01:00:00 1987/11/14 02:00:00 2 0.76 58.80%0.09 686 1987/11/17 21:00:00 1987/11/17 22:00:00 2 0.76 58.88%0.09 687 1987/12/11 05:00:00 1987/12/11 06:00:00 2 0.76 58.97%0.08 688 1987/12/19 18:00:00 1987/12/19 19:00:00 2 0.76 59.06%0.08 689 1987/12/29 11:00:00 1987/12/30 05:00:00 19 0.76 59.14%0.08 690 1988/01/05 13:00:00 1988/01/05 18:00:00 6 0.76 59.23%0.08 691 1988/02/02 00:00:00 1988/02/02 17:00:00 18 0.76 59.31%0.08 692 1988/02/29 21:00:00 1988/02/29 22:00:00 2 0.76 59.40%0.08 693 1988/04/18 04:00:00 1988/04/18 05:00:00 2 0.76 59.48%0.08 694 1988/04/22 10:00:00 1988/04/23 11:00:00 26 0.76 59.57%0.08 695 1988/05/29 06:00:00 1988/05/29 07:00:00 2 0.76 59.66%0.08 696 1988/11/10 11:00:00 1988/11/11 09:00:00 23 0.76 59.74%0.08 697 1988/11/23 23:00:00 1988/11/24 05:00:00 7 0.76 59.83%0.08 15/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 698 1988/12/18 12:00:00 1988/12/18 20:00:00 9 0.76 59.91%0.08 699 1988/12/22 22:00:00 1988/12/23 00:00:00 3 0.76 60.00%0.08 700 1988/12/27 22:00:00 1988/12/28 11:00:00 14 0.76 60.09%0.08 701 1989/01/05 18:00:00 1989/01/05 19:00:00 2 0.76 60.17%0.08 702 1989/01/07 15:00:00 1989/01/07 17:00:00 3 0.76 60.26%0.08 703 1989/01/23 19:00:00 1989/01/23 21:00:00 3 0.76 60.34%0.08 704 1989/02/02 06:00:00 1989/02/02 09:00:00 4 0.76 60.43%0.08 705 1989/02/03 21:00:00 1989/02/04 17:00:00 21 0.76 60.52%0.08 706 1989/02/09 14:00:00 1989/02/10 05:00:00 16 0.76 60.60%0.08 707 1989/03/02 09:00:00 1989/03/02 19:00:00 11 0.76 60.69%0.08 708 1989/05/14 06:00:00 1989/05/15 07:00:00 26 0.76 60.77%0.08 709 1989/06/04 06:00:00 1989/06/04 07:00:00 2 0.76 60.86%0.08 710 1989/11/26 10:00:00 1989/11/26 11:00:00 2 0.76 60.94%0.08 711 1989/12/01 10:00:00 1989/12/01 11:00:00 2 0.76 61.03%0.08 712 1990/01/02 06:00:00 1990/01/02 10:00:00 5 0.76 61.12%0.08 713 1990/01/13 10:00:00 1990/01/14 11:00:00 26 0.76 61.20%0.08 714 1990/01/18 13:00:00 1990/01/18 14:00:00 2 0.76 61.29%0.08 715 1990/01/22 10:00:00 1990/01/22 11:00:00 2 0.76 61.37%0.08 716 1990/02/04 10:00:00 1990/02/04 14:00:00 5 0.76 61.46%0.08 717 1990/04/16 20:00:00 1990/04/17 14:00:00 19 0.76 61.55%0.08 718 1990/05/13 16:00:00 1990/05/13 17:00:00 2 0.76 61.63%0.08 719 1990/05/28 05:00:00 1990/05/28 14:00:00 10 0.76 61.72%0.08 720 1990/06/09 13:00:00 1990/06/10 14:00:00 26 0.76 61.80%0.08 721 1990/08/15 07:00:00 1990/08/15 08:00:00 2 0.76 61.89%0.08 722 1990/12/20 07:00:00 1990/12/20 08:00:00 2 0.76 61.97%0.08 723 1991/01/03 21:00:00 1991/01/03 22:00:00 2 0.76 62.06%0.08 724 1991/03/11 02:00:00 1991/03/11 03:00:00 2 0.76 62.15%0.08 725 1991/03/13 19:00:00 1991/03/13 20:00:00 2 0.76 62.23%0.08 726 1991/03/15 13:00:00 1991/03/15 15:00:00 3 0.76 62.32%0.08 727 1991/07/31 11:00:00 1991/07/31 12:00:00 2 0.76 62.40%0.08 728 1991/12/09 10:00:00 1991/12/09 11:00:00 2 0.76 62.49%0.08 729 1991/12/18 03:00:00 1991/12/18 04:00:00 2 0.76 62.58%0.08 730 1991/12/19 10:00:00 1991/12/19 11:00:00 2 0.76 62.66%0.08 731 1991/12/28 01:00:00 1991/12/28 04:00:00 4 0.76 62.75%0.08 732 1992/01/03 08:00:00 1992/01/04 04:00:00 21 0.76 62.83%0.08 733 1992/02/10 00:00:00 1992/02/10 06:00:00 7 0.76 62.92%0.08 734 1992/03/29 12:00:00 1992/03/29 13:00:00 2 0.76 63.00%0.08 735 1992/03/31 14:00:00 1992/03/31 15:00:00 2 0.76 63.09%0.08 736 1992/05/05 23:00:00 1992/05/06 00:00:00 2 0.76 63.18%0.08 737 1992/05/17 17:00:00 1992/05/17 18:00:00 2 0.76 63.26%0.08 738 1997/01/02 04:00:00 1997/01/03 11:00:00 32 0.76 63.35%0.08 739 1951/12/19 04:00:00 1951/12/19 13:00:00 10 0.74 63.43%0.08 740 1954/12/03 09:00:00 1954/12/04 00:00:00 16 0.74 63.52%0.08 741 1965/12/31 07:00:00 1966/01/01 02:00:00 20 0.74 63.61%0.08 742 1953/11/14 15:00:00 1953/11/15 09:00:00 19 0.73 63.69%0.08 743 1953/12/04 08:00:00 1953/12/04 11:00:00 4 0.73 63.78%0.08 744 1969/11/10 01:00:00 1969/11/10 09:00:00 9 0.73 63.86%0.08 16/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 745 1973/02/03 14:00:00 1973/02/03 23:00:00 10 0.73 63.95%0.08 746 2001/02/20 05:00:00 2001/02/21 00:00:00 20 0.73 64.03%0.08 747 1957/02/23 04:00:00 1957/02/23 11:00:00 8 0.72 64.12%0.08 748 1957/10/21 00:00:00 1957/10/21 06:00:00 7 0.72 64.21%0.08 749 1958/03/11 00:00:00 1958/03/12 07:00:00 32 0.72 64.29%0.08 750 1964/03/02 07:00:00 1964/03/02 13:00:00 7 0.72 64.38%0.08 751 1965/03/12 11:00:00 1965/03/13 22:00:00 36 0.72 64.46%0.08 752 1957/05/19 03:00:00 1957/05/19 10:00:00 8 0.7 64.55%0.08 753 1957/05/20 23:00:00 1957/05/21 08:00:00 10 0.7 64.64%0.08 754 1962/05/27 06:00:00 1962/05/27 14:00:00 9 0.7 64.72%0.08 755 1956/05/09 08:00:00 1956/05/10 01:00:00 18 0.68 64.81%0.08 756 1960/04/23 07:00:00 1960/04/24 09:00:00 27 0.68 64.89%0.08 757 1972/10/19 00:00:00 1972/10/20 18:00:00 43 0.68 64.98%0.08 758 1973/03/26 06:00:00 1973/03/26 07:00:00 2 0.68 65.06%0.08 759 1956/12/05 14:00:00 1956/12/06 05:00:00 16 0.66 65.15%0.08 760 1957/01/09 20:00:00 1957/01/10 13:00:00 18 0.66 65.24%0.08 761 1963/12/09 15:00:00 1963/12/10 04:00:00 14 0.66 65.32%0.08 762 1968/01/27 22:00:00 1968/01/28 01:00:00 4 0.66 65.41%0.08 763 1969/01/18 19:00:00 1969/01/22 10:00:00 88 0.66 65.49%0.08 764 1970/01/09 18:00:00 1970/01/10 11:00:00 18 0.66 65.58%0.08 765 1975/12/12 14:00:00 1975/12/12 18:00:00 5 0.66 65.67%0.08 766 1998/01/03 06:00:00 1998/01/04 20:00:00 39 0.66 65.75%0.08 767 1964/02/29 03:00:00 1964/02/29 06:00:00 4 0.65 65.84%0.08 768 2001/02/23 06:00:00 2001/02/23 23:00:00 18 0.65 65.92%0.08 769 2001/11/29 07:00:00 2001/11/29 23:00:00 17 0.65 66.01%0.08 770 2002/02/17 08:00:00 2002/02/17 22:00:00 15 0.65 66.09%0.08 771 1962/03/22 22:00:00 1962/03/23 01:00:00 4 0.64 66.18%0.08 772 1963/10/16 08:00:00 1963/10/16 13:00:00 6 0.64 66.27%0.08 773 1969/03/09 01:00:00 1969/03/11 05:00:00 53 0.64 66.35%0.08 774 1957/04/22 10:00:00 1957/04/22 14:00:00 5 0.63 66.44%0.08 775 1962/05/14 17:00:00 1962/05/15 04:00:00 12 0.63 66.52%0.08 776 1970/04/16 21:00:00 1970/04/17 02:00:00 6 0.63 66.61%0.08 777 2003/05/03 07:00:00 2003/05/03 23:00:00 17 0.62 66.70%0.08 778 1951/11/20 01:00:00 1951/11/20 22:00:00 22 0.61 66.78%0.08 779 1965/09/16 13:00:00 1965/09/17 13:00:00 25 0.61 66.87%0.07 780 1993/02/26 18:00:00 1993/02/26 22:00:00 5 0.61 66.95%0.07 781 1994/04/24 04:00:00 1994/04/24 07:00:00 4 0.61 67.04%0.07 782 1994/12/24 09:00:00 1994/12/25 05:00:00 21 0.61 67.12%0.07 783 1996/02/03 11:00:00 1996/02/03 13:00:00 3 0.61 67.21%0.07 784 1996/10/02 19:00:00 1996/10/03 16:00:00 22 0.61 67.30%0.07 785 1997/04/03 17:00:00 1997/04/03 19:00:00 3 0.61 67.38%0.07 786 1998/08/31 20:00:00 1998/08/31 21:00:00 2 0.61 67.47%0.07 787 1998/12/19 18:00:00 1998/12/19 20:00:00 3 0.61 67.55%0.07 788 1999/03/15 10:00:00 1999/03/15 11:00:00 2 0.61 67.64%0.07 789 1999/04/06 18:00:00 1999/04/07 11:00:00 18 0.61 67.73%0.07 790 1999/07/18 10:00:00 1999/07/18 11:00:00 2 0.61 67.81%0.07 791 2000/11/10 06:00:00 2000/11/11 22:00:00 41 0.61 67.90%0.07 17/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 792 2003/11/12 05:00:00 2003/11/13 05:00:00 25 0.61 67.98%0.07 793 2004/02/18 16:00:00 2004/02/18 18:00:00 3 0.61 68.07%0.07 794 2004/03/26 08:00:00 2004/03/26 12:00:00 5 0.61 68.15%0.07 795 2004/08/30 20:00:00 2004/08/30 21:00:00 2 0.61 68.24%0.07 796 2005/01/28 15:00:00 2005/01/28 16:00:00 2 0.61 68.33%0.07 797 2005/03/04 09:00:00 2005/03/05 04:00:00 20 0.61 68.41%0.07 798 2006/03/03 14:00:00 2006/03/03 16:00:00 3 0.61 68.50%0.07 799 2006/11/27 10:00:00 2006/11/27 12:00:00 3 0.61 68.58%0.07 800 2006/12/16 20:00:00 2006/12/17 04:00:00 9 0.61 68.67%0.07 801 2006/12/22 10:00:00 2006/12/22 11:00:00 2 0.61 68.76%0.07 802 2007/02/13 07:00:00 2007/02/13 22:00:00 16 0.61 68.84%0.07 803 2007/09/22 10:00:00 2007/09/22 14:00:00 5 0.61 68.93%0.07 804 2008/01/22 04:00:00 2008/01/22 06:00:00 3 0.61 69.01%0.07 805 2008/01/29 01:00:00 2008/01/29 02:00:00 2 0.61 69.10%0.07 806 2008/02/03 06:00:00 2008/02/04 05:00:00 24 0.61 69.18%0.07 807 2008/01/23 08:00:00 2008/01/24 20:00:00 37 0.6 69.27%0.07 808 1996/12/05 21:00:00 1996/12/06 08:00:00 12 0.59 69.36%0.07 809 1951/12/04 23:00:00 1951/12/05 07:00:00 9 0.58 69.44%0.07 810 1952/12/06 03:00:00 1952/12/06 06:00:00 4 0.58 69.53%0.07 811 1953/11/05 07:00:00 1953/11/06 05:00:00 23 0.58 69.61%0.07 812 1957/11/14 15:00:00 1957/11/14 19:00:00 5 0.58 69.70%0.07 813 1967/12/07 22:00:00 1967/12/08 09:00:00 12 0.58 69.79%0.07 814 1987/02/13 18:00:00 1987/02/14 00:00:00 7 0.58 69.87%0.07 815 1993/01/02 06:00:00 1993/01/02 13:00:00 8 0.58 69.96%0.07 816 1996/01/25 12:00:00 1996/01/25 15:00:00 4 0.58 70.04%0.07 817 1999/01/20 05:00:00 1999/01/21 06:00:00 26 0.58 70.13%0.07 818 2001/01/08 13:00:00 2001/01/08 18:00:00 6 0.58 70.21%0.07 819 2001/11/12 09:00:00 2001/11/13 19:00:00 35 0.58 70.30%0.07 820 2001/12/03 14:00:00 2001/12/04 21:00:00 32 0.58 70.39%0.07 821 2005/12/02 23:00:00 2005/12/03 01:00:00 3 0.58 70.47%0.07 822 2007/02/19 00:00:00 2007/02/19 09:00:00 10 0.58 70.56%0.07 823 2008/02/14 10:00:00 2008/02/14 15:00:00 6 0.58 70.64%0.07 824 1952/03/10 04:00:00 1952/03/11 10:00:00 31 0.57 70.73%0.07 825 1959/09/30 22:00:00 1959/10/01 07:00:00 10 0.57 70.82%0.07 826 1995/03/23 08:00:00 1995/03/23 18:00:00 11 0.57 70.90%0.07 827 1996/02/12 12:00:00 1996/02/12 14:00:00 3 0.57 70.99%0.07 828 1997/02/10 19:00:00 1997/02/10 23:00:00 5 0.57 71.07%0.07 829 2000/09/22 18:00:00 2000/09/23 01:00:00 8 0.57 71.16%0.07 830 2007/10/13 05:00:00 2007/10/13 10:00:00 6 0.57 71.24%0.07 831 1957/10/11 05:00:00 1957/10/11 13:00:00 9 0.56 71.33%0.07 832 1960/03/23 06:00:00 1960/03/23 10:00:00 5 0.56 71.42%0.07 833 1961/10/08 15:00:00 1961/10/08 17:00:00 3 0.56 71.50%0.07 834 1964/03/12 16:00:00 1964/03/13 02:00:00 11 0.56 71.59%0.07 835 1969/04/03 01:00:00 1969/04/03 09:00:00 9 0.56 71.67%0.07 836 1976/04/12 03:00:00 1976/04/13 13:00:00 35 0.56 71.76%0.07 837 1996/03/04 16:00:00 1996/03/05 00:00:00 9 0.56 71.85%0.07 838 1996/04/18 00:00:00 1996/04/18 05:00:00 6 0.56 71.93%0.07 18/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 839 1999/04/01 13:00:00 1999/04/01 20:00:00 8 0.56 72.02%0.07 840 1963/06/11 08:00:00 1963/06/11 14:00:00 7 0.55 72.10%0.07 841 2001/04/09 16:00:00 2001/04/10 22:00:00 31 0.55 72.19%0.07 842 2006/04/14 12:00:00 2006/04/15 10:00:00 23 0.55 72.27%0.07 843 2007/04/22 22:00:00 2007/04/23 01:00:00 4 0.55 72.36%0.07 844 1952/09/19 14:00:00 1952/09/19 16:00:00 3 0.53 72.45%0.07 845 1966/02/25 00:00:00 1966/02/25 05:00:00 6 0.53 72.53%0.07 846 1971/04/26 04:00:00 1971/04/26 06:00:00 3 0.53 72.62%0.07 847 1975/03/14 01:00:00 1975/03/14 04:00:00 4 0.53 72.70%0.07 848 2002/03/17 20:00:00 2002/03/18 03:00:00 8 0.53 72.79%0.07 849 2002/05/20 22:00:00 2002/05/20 23:00:00 2 0.53 72.88%0.07 850 1953/01/06 14:00:00 1953/01/08 10:00:00 45 0.51 72.96%0.07 851 1960/12/02 07:00:00 1960/12/03 05:00:00 23 0.51 73.05%0.07 852 1955/11/17 05:00:00 1955/11/17 18:00:00 14 0.5 73.13%0.07 853 1958/02/13 00:00:00 1958/02/13 07:00:00 8 0.5 73.22%0.07 854 1962/02/24 19:00:00 1962/02/25 00:00:00 6 0.5 73.30%0.07 855 1965/11/25 07:00:00 1965/11/25 13:00:00 7 0.5 73.39%0.07 856 1955/04/26 09:00:00 1955/04/26 12:00:00 4 0.48 73.48%0.07 857 1963/03/15 03:00:00 1963/03/15 07:00:00 5 0.48 73.56%0.07 858 1963/04/08 04:00:00 1963/04/08 09:00:00 6 0.48 73.65%0.07 859 1969/05/05 08:00:00 1969/05/06 12:00:00 29 0.48 73.73%0.07 860 2002/04/15 07:00:00 2002/04/15 10:00:00 4 0.48 73.82%0.07 861 2002/04/24 11:00:00 2002/04/24 14:00:00 4 0.48 73.91%0.07 862 2002/09/29 11:00:00 2002/09/29 21:00:00 11 0.48 73.99%0.07 863 1965/07/29 19:00:00 1965/07/29 23:00:00 5 0.47 74.08%0.07 864 1998/05/05 13:00:00 1998/05/06 21:00:00 33 0.47 74.16%0.07 865 1951/12/01 21:00:00 1951/12/02 03:00:00 7 0.43 74.25%0.07 866 1964/01/18 14:00:00 1964/01/18 21:00:00 8 0.43 74.33%0.07 867 1966/01/27 04:00:00 1966/01/27 15:00:00 12 0.43 74.42%0.07 868 1971/12/07 00:00:00 1971/12/07 03:00:00 4 0.43 74.51%0.07 869 1972/12/07 05:00:00 1972/12/08 21:00:00 41 0.43 74.59%0.07 870 1975/01/30 13:00:00 1975/01/30 18:00:00 6 0.43 74.68%0.07 871 2000/01/25 11:00:00 2000/01/26 18:00:00 32 0.43 74.76%0.07 872 1952/12/17 06:00:00 1952/12/17 16:00:00 11 0.42 74.85%0.07 873 1953/11/20 06:00:00 1953/11/20 08:00:00 3 0.42 74.94%0.07 874 1956/04/26 16:00:00 1956/04/27 09:00:00 18 0.42 75.02%0.07 875 1961/03/15 09:00:00 1961/03/15 14:00:00 6 0.42 75.11%0.07 876 1963/10/18 01:00:00 1963/10/19 01:00:00 25 0.42 75.19%0.07 877 1963/11/06 13:00:00 1963/11/06 17:00:00 5 0.42 75.28%0.07 878 1965/04/12 23:00:00 1965/04/13 01:00:00 3 0.42 75.36%0.07 879 1973/03/04 03:00:00 1973/03/04 04:00:00 2 0.42 75.45%0.07 880 1974/02/19 17:00:00 1974/02/19 19:00:00 3 0.42 75.54%0.07 881 1972/10/17 02:00:00 1972/10/17 05:00:00 4 0.41 75.62%0.07 882 1963/04/14 15:00:00 1963/04/14 21:00:00 7 0.4 75.71%0.07 883 1975/04/25 05:00:00 1975/04/25 09:00:00 5 0.4 75.79%0.07 884 1954/07/13 04:00:00 1954/07/13 06:00:00 3 0.39 75.88%0.07 885 1955/12/04 05:00:00 1955/12/04 11:00:00 7 0.36 75.97%0.07 19/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 886 1965/12/21 23:00:00 1965/12/22 11:00:00 13 0.36 76.05%0.07 887 1951/11/12 23:00:00 1951/11/13 03:00:00 5 0.35 76.14%0.07 888 1958/01/30 12:00:00 1958/01/30 14:00:00 3 0.35 76.22%0.07 889 1964/02/15 06:00:00 1964/02/15 11:00:00 6 0.35 76.31%0.07 890 1965/01/07 08:00:00 1965/01/07 11:00:00 4 0.35 76.39%0.07 891 2001/12/20 14:00:00 2001/12/21 20:00:00 31 0.35 76.48%0.07 892 2002/12/29 13:00:00 2002/12/29 20:00:00 8 0.35 76.57%0.07 893 2003/01/20 13:00:00 2003/01/20 20:00:00 8 0.35 76.65%0.07 894 1960/03/28 00:00:00 1960/03/28 06:00:00 7 0.34 76.74%0.07 895 1961/03/28 00:00:00 1961/03/28 17:00:00 18 0.34 76.82%0.07 896 2003/03/22 13:00:00 2003/03/22 20:00:00 8 0.33 76.91%0.07 897 1955/04/18 08:00:00 1955/04/18 10:00:00 3 0.32 77.00%0.07 898 1971/05/07 16:00:00 1971/05/07 23:00:00 8 0.32 77.08%0.07 899 1957/01/24 04:00:00 1957/01/24 23:00:00 20 0.28 77.17%0.07 900 1957/11/04 03:00:00 1957/11/04 11:00:00 9 0.28 77.25%0.06 901 1965/01/20 03:00:00 1965/01/20 08:00:00 6 0.28 77.34%0.06 902 1968/12/11 05:00:00 1968/12/11 10:00:00 6 0.28 77.42%0.06 903 1968/12/20 09:00:00 1968/12/20 12:00:00 4 0.28 77.51%0.06 904 1971/01/02 06:00:00 1971/01/02 11:00:00 6 0.28 77.60%0.06 905 1971/12/13 03:00:00 1971/12/13 07:00:00 5 0.28 77.68%0.06 906 1992/12/03 11:00:00 1992/12/04 10:00:00 24 0.28 77.77%0.06 907 1993/11/22 13:00:00 1993/11/23 04:00:00 16 0.28 77.85%0.06 908 1993/12/14 16:00:00 1993/12/15 08:00:00 17 0.28 77.94%0.06 909 1994/02/20 11:00:00 1994/02/21 07:00:00 21 0.28 78.03%0.06 910 1994/12/13 05:00:00 1994/12/13 07:00:00 3 0.28 78.11%0.06 911 1995/12/13 01:00:00 1995/12/13 10:00:00 10 0.28 78.20%0.06 912 1996/01/28 04:00:00 1996/01/28 07:00:00 4 0.28 78.28%0.06 913 1998/04/15 13:00:00 1998/04/15 20:00:00 8 0.28 78.37%0.06 914 1998/12/04 00:00:00 1998/12/05 03:00:00 28 0.28 78.45%0.06 915 2003/11/01 04:00:00 2003/11/01 10:00:00 7 0.28 78.54%0.06 916 2003/12/07 10:00:00 2003/12/08 01:00:00 16 0.28 78.63%0.06 917 2004/01/02 17:00:00 2004/01/03 15:00:00 23 0.28 78.71%0.06 918 2004/01/28 02:00:00 2004/01/28 07:00:00 6 0.28 78.80%0.06 919 2004/12/08 04:00:00 2004/12/08 09:00:00 6 0.28 78.88%0.06 920 1952/01/07 03:00:00 1952/01/08 11:00:00 33 0.27 78.97%0.06 921 1957/11/02 07:00:00 1957/11/03 02:00:00 20 0.27 79.06%0.06 922 1962/02/26 09:00:00 1962/02/26 12:00:00 4 0.27 79.14%0.06 923 1971/11/12 07:00:00 1971/11/12 10:00:00 4 0.27 79.23%0.06 924 1994/11/16 08:00:00 1994/11/16 10:00:00 3 0.27 79.31%0.06 925 1995/11/01 05:00:00 1995/11/01 21:00:00 17 0.27 79.40%0.06 926 1999/02/09 19:00:00 1999/02/09 21:00:00 3 0.27 79.48%0.06 927 2001/12/14 14:00:00 2001/12/14 19:00:00 6 0.27 79.57%0.06 928 2001/12/30 14:00:00 2001/12/30 19:00:00 6 0.27 79.66%0.06 929 2003/11/16 00:00:00 2003/11/16 09:00:00 10 0.27 79.74%0.06 930 2005/02/07 02:00:00 2005/02/07 07:00:00 6 0.27 79.83%0.06 931 1953/03/20 02:00:00 1953/03/20 11:00:00 10 0.26 79.91%0.06 932 1957/11/16 01:00:00 1957/11/16 23:00:00 23 0.26 80.00%0.06 20/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 933 1992/10/23 06:00:00 1992/10/23 09:00:00 4 0.26 80.09%0.06 934 1992/10/30 16:00:00 1992/10/30 20:00:00 5 0.26 80.17%0.06 935 1998/01/13 14:00:00 1998/01/13 19:00:00 6 0.26 80.26%0.06 936 1998/01/19 14:00:00 1998/01/20 18:00:00 29 0.26 80.34%0.06 937 1999/03/11 11:00:00 1999/03/11 15:00:00 5 0.26 80.43%0.06 938 2001/04/20 23:00:00 2001/04/21 13:00:00 15 0.26 80.52%0.06 939 2005/03/18 20:00:00 2005/03/20 04:00:00 33 0.26 80.60%0.06 940 2006/03/06 23:00:00 2006/03/07 02:00:00 4 0.26 80.69%0.06 941 2006/03/17 18:00:00 2006/03/18 08:00:00 15 0.26 80.77%0.06 942 1956/04/10 13:00:00 1956/04/11 13:00:00 25 0.25 80.86%0.06 943 1972/09/06 01:00:00 1972/09/06 07:00:00 7 0.25 80.94%0.06 944 1995/05/13 06:00:00 1995/05/13 09:00:00 4 0.25 81.03%0.06 945 1999/03/07 01:00:00 1999/03/07 05:00:00 5 0.25 81.12%0.06 946 1962/06/15 00:00:00 1962/06/15 13:00:00 14 0.24 81.20%0.06 947 1992/08/13 16:00:00 1992/08/13 19:00:00 4 0.24 81.29%0.06 948 1995/07/16 08:00:00 1995/07/16 10:00:00 3 0.24 81.37%0.06 949 1997/02/27 16:00:00 1997/02/27 22:00:00 7 0.24 81.46%0.06 950 2002/11/29 14:00:00 2002/11/29 19:00:00 6 0.22 81.55%0.06 951 1953/01/13 17:00:00 1953/01/13 23:00:00 7 0.21 81.63%0.06 952 1955/12/01 18:00:00 1955/12/02 00:00:00 7 0.2 81.72%0.06 953 1955/12/06 23:00:00 1955/12/07 03:00:00 5 0.2 81.80%0.06 954 1956/01/20 15:00:00 1956/01/21 00:00:00 10 0.2 81.89%0.06 955 1962/03/29 06:00:00 1962/03/29 09:00:00 4 0.2 81.97%0.06 956 1962/12/18 07:00:00 1962/12/18 10:00:00 4 0.2 82.06%0.06 957 1967/01/30 23:00:00 1967/01/31 08:00:00 10 0.2 82.15%0.06 958 1970/01/11 15:00:00 1970/01/12 08:00:00 18 0.2 82.23%0.06 959 1972/11/08 01:00:00 1972/11/08 05:00:00 5 0.2 82.32%0.06 960 2002/01/28 03:00:00 2002/01/29 08:00:00 30 0.2 82.40%0.06 961 1955/11/21 09:00:00 1955/11/21 17:00:00 9 0.19 82.49%0.06 962 1975/10/07 05:00:00 1975/10/07 09:00:00 5 0.19 82.58%0.06 963 1956/10/23 11:00:00 1956/10/23 13:00:00 3 0.18 82.66%0.06 964 1964/03/31 16:00:00 1964/04/01 10:00:00 19 0.18 82.75%0.06 965 1973/03/21 20:00:00 1973/03/21 22:00:00 3 0.17 82.83%0.06 966 2002/04/26 09:00:00 2002/04/26 14:00:00 6 0.17 82.92%0.06 967 1952/04/28 03:00:00 1952/04/28 08:00:00 6 0.16 83.00%0.06 968 1953/04/29 18:00:00 1953/04/30 06:00:00 13 0.16 83.09%0.06 969 1953/04/21 20:00:00 1953/04/21 22:00:00 3 0.14 83.18%0.06 970 2000/01/31 15:00:00 2000/01/31 19:00:00 5 0.14 83.26%0.06 971 1957/03/09 15:00:00 1957/03/09 22:00:00 8 0.13 83.35%0.06 972 1959/11/01 20:00:00 1959/11/01 22:00:00 3 0.12 83.43%0.06 973 1964/01/14 09:00:00 1964/01/14 14:00:00 6 0.12 83.52%0.06 974 1969/02/15 16:00:00 1969/02/16 00:00:00 9 0.12 83.61%0.06 975 1969/11/15 09:00:00 1969/11/15 21:00:00 13 0.12 83.69%0.06 976 1975/02/14 02:00:00 1975/02/14 07:00:00 6 0.12 83.78%0.06 977 1964/06/09 07:00:00 1964/06/09 14:00:00 8 0.11 83.86%0.06 978 1966/03/02 05:00:00 1966/03/02 09:00:00 5 0.11 83.95%0.06 979 1954/04/28 05:00:00 1954/04/28 10:00:00 6 0.1 84.03%0.06 21/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 980 1957/04/15 01:00:00 1957/04/15 08:00:00 8 0.1 84.12%0.06 981 1952/04/25 19:00:00 1952/04/25 20:00:00 2 0.09 84.21%0.06 982 1956/04/01 13:00:00 1956/04/01 14:00:00 2 0.09 84.29%0.06 983 1956/05/17 18:00:00 1956/05/17 19:00:00 2 0.09 84.38%0.06 984 1958/03/02 17:00:00 1958/03/02 19:00:00 3 0.09 84.46%0.06 985 1959/09/29 02:00:00 1959/09/29 03:00:00 2 0.09 84.55%0.06 986 1961/03/24 23:00:00 1961/03/25 05:00:00 7 0.09 84.64%0.06 987 1961/05/07 04:00:00 1961/05/07 06:00:00 3 0.09 84.72%0.06 988 1964/05/17 00:00:00 1964/05/17 01:00:00 2 0.09 84.81%0.06 989 1970/04/21 12:00:00 1970/04/21 13:00:00 2 0.09 84.89%0.06 990 1972/06/06 13:00:00 1972/06/06 14:00:00 2 0.09 84.98%0.06 991 1975/10/30 17:00:00 1975/10/30 18:00:00 2 0.09 85.06%0.06 992 1959/07/21 15:00:00 1959/07/21 17:00:00 3 0.08 85.15%0.06 993 1960/05/03 20:00:00 1960/05/04 12:00:00 17 0.08 85.24%0.06 994 1960/10/23 05:00:00 1960/10/23 10:00:00 6 0.08 85.32%0.06 995 1961/03/04 14:00:00 1961/03/04 19:00:00 6 0.08 85.41%0.06 996 1968/05/12 03:00:00 1968/05/12 05:00:00 3 0.08 85.49%0.06 997 1968/10/30 00:00:00 1968/10/30 14:00:00 15 0.08 85.58%0.06 998 1972/09/03 15:00:00 1972/09/03 16:00:00 2 0.08 85.67%0.06 999 1974/11/02 00:00:00 1974/11/02 01:00:00 2 0.08 85.75%0.06 1000 1975/03/06 16:00:00 1975/03/06 20:00:00 5 0.08 85.84%0.06 1001 1987/02/15 19:00:00 1987/02/15 20:00:00 2 0.08 85.92%0.06 1002 1987/02/18 17:00:00 1987/02/18 18:00:00 2 0.08 86.01%0.06 1003 1992/11/22 23:00:00 1992/11/23 00:00:00 2 0.08 86.09%0.06 1004 1992/12/11 21:00:00 1992/12/11 22:00:00 2 0.08 86.18%0.06 1005 1993/10/16 07:00:00 1993/10/16 08:00:00 2 0.08 86.27%0.06 1006 1993/11/01 03:00:00 1993/11/01 04:00:00 2 0.08 86.35%0.06 1007 1993/11/12 03:00:00 1993/11/12 04:00:00 2 0.08 86.44%0.06 1008 1993/12/19 04:00:00 1993/12/19 05:00:00 2 0.08 86.52%0.06 1009 1994/04/25 18:00:00 1994/04/27 18:00:00 49 0.08 86.61%0.06 1010 1994/05/08 08:00:00 1994/05/08 09:00:00 2 0.08 86.70%0.06 1011 1994/05/11 22:00:00 1994/05/11 23:00:00 2 0.08 86.78%0.06 1012 1994/05/15 06:00:00 1994/05/15 07:00:00 2 0.08 86.87%0.06 1013 1994/10/04 13:00:00 1994/10/04 14:00:00 2 0.08 86.95%0.06 1014 1994/11/18 05:00:00 1994/11/18 06:00:00 2 0.08 87.04%0.06 1015 1994/12/22 21:00:00 1994/12/22 22:00:00 2 0.08 87.12%0.06 1016 1995/12/16 00:00:00 1995/12/16 01:00:00 2 0.08 87.21%0.06 1017 1996/01/19 08:00:00 1996/01/19 09:00:00 2 0.08 87.30%0.06 1018 1996/04/02 07:00:00 1996/04/02 08:00:00 2 0.08 87.38%0.06 1019 1996/12/31 16:00:00 1996/12/31 17:00:00 2 0.08 87.47%0.06 1020 1998/09/03 03:00:00 1998/09/03 09:00:00 7 0.08 87.55%0.06 1021 1998/09/26 08:00:00 1998/09/26 09:00:00 2 0.08 87.64%0.06 1022 1998/11/11 09:00:00 1998/11/11 21:00:00 13 0.08 87.73%0.06 1023 1999/02/07 09:00:00 1999/02/07 10:00:00 2 0.08 87.81%0.06 1024 1999/03/04 01:00:00 1999/03/04 02:00:00 2 0.08 87.90%0.06 1025 1999/04/08 23:00:00 1999/04/09 00:00:00 2 0.08 87.98%0.06 1026 1999/05/23 01:00:00 1999/05/23 02:00:00 2 0.08 88.07%0.06 22/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1027 1999/07/05 19:00:00 1999/07/05 20:00:00 2 0.08 88.15%0.06 1028 1999/09/21 08:00:00 1999/09/21 09:00:00 2 0.08 88.24%0.06 1029 1999/12/10 04:00:00 1999/12/10 05:00:00 2 0.08 88.33%0.06 1030 2000/02/16 15:00:00 2000/02/17 19:00:00 29 0.08 88.41%0.06 1031 2000/04/14 21:00:00 2000/04/14 22:00:00 2 0.08 88.50%0.06 1032 2000/04/21 19:00:00 2000/04/21 20:00:00 2 0.08 88.58%0.06 1033 2000/09/07 14:00:00 2000/09/07 15:00:00 2 0.08 88.67%0.06 1034 2000/10/04 08:00:00 2000/10/04 09:00:00 2 0.08 88.76%0.06 1035 2000/10/06 14:00:00 2000/10/06 15:00:00 2 0.08 88.84%0.06 1036 2000/10/11 07:00:00 2000/10/11 08:00:00 2 0.08 88.93%0.06 1037 2001/01/24 11:00:00 2001/01/25 02:00:00 16 0.08 89.01%0.06 1038 2001/05/29 23:00:00 2001/05/30 00:00:00 2 0.08 89.10%0.06 1039 2003/07/30 08:00:00 2003/07/30 09:00:00 2 0.08 89.18%0.06 1040 2003/08/20 22:00:00 2003/08/20 23:00:00 2 0.08 89.27%0.06 1041 2003/11/03 17:00:00 2003/11/04 00:00:00 8 0.08 89.36%0.06 1042 2003/12/17 10:00:00 2003/12/17 11:00:00 2 0.08 89.44%0.06 1043 2004/01/19 07:00:00 2004/01/19 08:00:00 2 0.08 89.53%0.06 1044 2004/01/25 02:00:00 2004/01/25 03:00:00 2 0.08 89.61%0.06 1045 2004/06/19 10:00:00 2004/06/19 11:00:00 2 0.08 89.70%0.06 1046 2004/11/08 07:00:00 2004/11/08 08:00:00 2 0.08 89.79%0.06 1047 2004/11/12 10:00:00 2004/11/12 11:00:00 2 0.08 89.87%0.06 1048 2004/11/29 22:00:00 2004/11/29 23:00:00 2 0.08 89.96%0.06 1049 2005/02/25 07:00:00 2005/02/25 08:00:00 2 0.08 90.04%0.06 1050 2005/04/24 13:00:00 2005/04/24 14:00:00 2 0.08 90.13%0.06 1051 2005/10/25 06:00:00 2005/10/25 07:00:00 2 0.08 90.21%0.06 1052 2006/01/30 08:00:00 2006/01/30 09:00:00 2 0.08 90.30%0.06 1053 2006/02/01 08:00:00 2006/02/01 09:00:00 2 0.08 90.39%0.06 1054 2006/04/01 10:00:00 2006/04/01 11:00:00 2 0.08 90.47%0.06 1055 2006/05/27 05:00:00 2006/05/27 06:00:00 2 0.08 90.56%0.06 1056 2006/08/04 04:00:00 2006/08/04 05:00:00 2 0.08 90.64%0.06 1057 2007/03/21 05:00:00 2007/03/21 06:00:00 2 0.08 90.73%0.06 1058 2007/03/27 05:00:00 2007/03/27 06:00:00 2 0.08 90.82%0.06 1059 2007/09/28 06:00:00 2007/09/28 07:00:00 2 0.08 90.90%0.06 1060 1969/02/28 19:00:00 1969/02/28 21:00:00 3 0.07 90.99%0.06 1061 1974/04/01 21:00:00 1974/04/02 02:00:00 6 0.07 91.07%0.06 1062 1998/04/07 14:00:00 1998/04/07 19:00:00 6 0.07 91.16%0.06 1063 1998/04/13 14:00:00 1998/04/13 19:00:00 6 0.07 91.24%0.06 1064 1959/10/27 11:00:00 1959/10/27 13:00:00 3 0.06 91.33%0.06 1065 1960/06/23 16:00:00 1960/06/23 17:00:00 2 0.06 91.42%0.05 1066 1960/12/08 18:00:00 1960/12/08 20:00:00 3 0.06 91.50%0.05 1067 1962/03/02 23:00:00 1962/03/03 02:00:00 4 0.06 91.59%0.05 1068 1962/10/14 19:00:00 1962/10/15 01:00:00 7 0.06 91.67%0.05 1069 1963/04/21 02:00:00 1963/04/21 05:00:00 4 0.06 91.76%0.05 1070 1963/05/31 23:00:00 1963/06/01 03:00:00 5 0.06 91.85%0.05 1071 1966/02/10 16:00:00 1966/02/10 18:00:00 3 0.06 91.93%0.05 1072 1967/04/24 09:00:00 1967/04/24 11:00:00 3 0.06 92.02%0.05 1073 1967/04/28 09:00:00 1967/04/29 08:00:00 24 0.06 92.10%0.05 23/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1074 1967/08/31 01:00:00 1967/08/31 02:00:00 2 0.06 92.19%0.05 1075 1967/12/16 04:00:00 1967/12/16 18:00:00 15 0.06 92.27%0.05 1076 1968/03/13 17:00:00 1968/03/13 23:00:00 7 0.06 92.36%0.05 1077 1968/07/28 06:00:00 1968/07/28 07:00:00 2 0.06 92.45%0.05 1078 1968/11/04 03:00:00 1968/11/04 04:00:00 2 0.06 92.53%0.05 1079 1968/11/30 19:00:00 1968/11/30 23:00:00 5 0.06 92.62%0.05 1080 1971/05/29 06:00:00 1971/05/29 07:00:00 2 0.06 92.70%0.05 1081 1972/05/18 23:00:00 1972/05/20 05:00:00 31 0.06 92.79%0.05 1082 1973/01/04 13:00:00 1973/01/04 15:00:00 3 0.06 92.88%0.05 1083 1974/01/20 16:00:00 1974/01/20 23:00:00 8 0.06 92.96%0.05 1084 1975/05/20 02:00:00 1975/05/20 09:00:00 8 0.06 93.05%0.05 1085 1975/06/17 05:00:00 1975/06/18 07:00:00 27 0.06 93.13%0.05 1086 2002/01/25 01:00:00 2002/01/25 02:00:00 2 0.06 93.22%0.05 1087 2002/03/01 06:00:00 2002/03/01 11:00:00 6 0.06 93.30%0.05 1088 2002/03/07 08:00:00 2002/03/07 23:00:00 16 0.06 93.39%0.05 1089 2002/03/23 05:00:00 2002/03/24 00:00:00 20 0.06 93.48%0.05 1090 1951/09/28 03:00:00 1951/10/01 07:00:00 77 0.05 93.56%0.05 1091 1955/01/06 10:00:00 1955/01/06 13:00:00 4 0.05 93.65%0.05 1092 1961/12/14 10:00:00 1961/12/14 18:00:00 9 0.05 93.73%0.05 1093 1967/06/13 01:00:00 1967/06/13 07:00:00 7 0.05 93.82%0.05 1094 1969/01/30 23:00:00 1969/01/31 04:00:00 6 0.05 93.91%0.05 1095 1970/03/10 08:00:00 1970/03/10 11:00:00 4 0.05 93.99%0.05 1096 1971/05/06 02:00:00 1971/05/06 07:00:00 6 0.05 94.08%0.05 1097 1973/01/30 14:00:00 1973/01/30 16:00:00 3 0.05 94.16%0.05 1098 1998/06/12 15:00:00 1998/06/12 18:00:00 4 0.05 94.25%0.05 1099 1998/06/16 15:00:00 1998/06/16 18:00:00 4 0.05 94.33%0.05 1100 2000/01/01 15:00:00 2000/01/02 18:00:00 28 0.05 94.42%0.05 1101 2000/02/27 16:00:00 2000/02/28 18:00:00 27 0.05 94.51%0.05 1102 2002/09/20 15:00:00 2002/09/20 18:00:00 4 0.05 94.59%0.05 1103 2003/05/07 15:00:00 2003/05/07 18:00:00 4 0.05 94.68%0.05 1104 2003/06/23 15:00:00 2003/06/23 18:00:00 4 0.05 94.76%0.05 1105 1952/02/17 22:00:00 1952/02/18 05:00:00 8 0.04 94.85%0.05 1106 1952/03/19 01:00:00 1952/03/19 07:00:00 7 0.04 94.94%0.05 1107 1953/06/18 10:00:00 1953/06/18 12:00:00 3 0.04 95.02%0.05 1108 1956/01/23 09:00:00 1956/01/23 14:00:00 6 0.04 95.11%0.05 1109 1956/10/04 08:00:00 1956/10/04 11:00:00 4 0.04 95.19%0.05 1110 1957/11/05 14:00:00 1957/11/05 17:00:00 4 0.04 95.28%0.05 1111 1958/11/15 23:00:00 1958/11/16 01:00:00 3 0.04 95.36%0.05 1112 1959/06/28 03:00:00 1959/06/28 04:00:00 2 0.04 95.45%0.05 1113 1960/02/19 02:00:00 1960/02/19 04:00:00 3 0.04 95.54%0.05 1114 1961/11/30 13:00:00 1961/11/30 15:00:00 3 0.04 95.62%0.05 1115 1962/02/12 09:00:00 1962/02/12 11:00:00 3 0.04 95.71%0.05 1116 1962/05/26 02:00:00 1962/05/26 04:00:00 3 0.04 95.79%0.05 1117 1963/01/31 22:00:00 1963/02/01 02:00:00 5 0.04 95.88%0.05 1118 1963/05/28 01:00:00 1963/05/28 08:00:00 8 0.04 95.97%0.05 1119 1964/11/12 00:00:00 1964/11/12 05:00:00 6 0.04 96.05%0.05 1120 1964/11/26 12:00:00 1964/11/26 16:00:00 5 0.04 96.14%0.05 24/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPre Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1121 1966/11/21 00:00:00 1966/11/21 01:00:00 2 0.04 96.22%0.05 1122 1967/03/04 09:00:00 1967/03/04 13:00:00 5 0.04 96.31%0.05 1123 1969/06/17 06:00:00 1969/06/17 09:00:00 4 0.04 96.39%0.05 1124 1972/06/20 18:00:00 1972/06/20 22:00:00 5 0.04 96.48%0.05 1125 1975/03/31 11:00:00 1975/04/01 04:00:00 18 0.04 96.57%0.05 1126 2001/04/04 17:00:00 2001/04/04 18:00:00 2 0.04 96.65%0.05 1127 1952/06/06 09:00:00 1952/06/06 11:00:00 3 0.03 96.74%0.05 1128 1955/05/24 10:00:00 1955/05/25 05:00:00 20 0.03 96.82%0.05 1129 1962/03/16 23:00:00 1962/03/17 02:00:00 4 0.03 96.91%0.05 1130 1964/12/23 16:00:00 1964/12/23 19:00:00 4 0.03 97.00%0.05 1131 1967/07/26 19:00:00 1967/07/26 21:00:00 3 0.03 97.08%0.05 1132 1968/07/07 02:00:00 1968/07/07 05:00:00 4 0.03 97.17%0.05 1133 1969/06/10 10:00:00 1969/06/10 13:00:00 4 0.03 97.25%0.05 1134 1970/01/14 19:00:00 1970/01/14 21:00:00 3 0.03 97.34%0.05 1135 2000/01/16 16:00:00 2000/01/16 18:00:00 3 0.03 97.42%0.05 1136 2001/02/10 16:00:00 2001/02/10 18:00:00 3 0.03 97.51%0.05 1137 1951/10/13 06:00:00 1951/10/13 07:00:00 2 0.02 97.60%0.05 1138 1955/05/07 11:00:00 1955/05/07 20:00:00 10 0.02 97.68%0.05 1139 1955/05/22 10:00:00 1955/05/22 14:00:00 5 0.02 97.77%0.05 1140 1959/05/26 17:00:00 1959/05/26 18:00:00 2 0.02 97.85%0.05 1141 1959/12/08 09:00:00 1959/12/08 13:00:00 5 0.02 97.94%0.05 1142 1963/03/23 09:00:00 1963/03/23 12:00:00 4 0.02 98.03%0.05 1143 1964/04/19 12:00:00 1964/04/19 13:00:00 2 0.02 98.11%0.05 1144 1965/06/25 08:00:00 1965/06/25 10:00:00 3 0.02 98.20%0.05 1145 1966/02/02 00:00:00 1966/02/02 07:00:00 8 0.02 98.28%0.05 1146 1967/05/10 06:00:00 1967/05/10 08:00:00 3 0.02 98.37%0.05 1147 1967/09/18 20:00:00 1967/09/18 22:00:00 3 0.02 98.45%0.05 1148 1968/02/10 01:00:00 1968/02/10 03:00:00 3 0.02 98.54%0.05 1149 1968/03/17 02:00:00 1968/03/17 03:00:00 2 0.02 98.63%0.05 1150 1968/05/21 06:00:00 1968/05/21 10:00:00 5 0.02 98.71%0.05 1151 1969/12/22 04:00:00 1969/12/22 05:00:00 2 0.02 98.80%0.05 1152 1970/06/12 20:00:00 1970/06/12 23:00:00 4 0.02 98.88%0.05 1153 1974/11/21 15:00:00 1974/11/21 20:00:00 6 0.02 98.97%0.05 1154 1997/12/21 17:00:00 1997/12/22 18:00:00 26 0.02 99.06%0.05 1155 1998/01/16 17:00:00 1998/01/16 18:00:00 2 0.02 99.14%0.05 1156 1998/03/09 17:00:00 1998/03/09 18:00:00 2 0.02 99.23%0.05 1157 1998/05/08 17:00:00 1998/05/08 18:00:00 2 0.02 99.31%0.05 1158 2001/04/12 17:00:00 2001/04/12 18:00:00 2 0.02 99.40%0.05 1159 2001/11/04 17:00:00 2001/11/04 18:00:00 2 0.02 99.48%0.05 1160 2001/12/23 17:00:00 2001/12/23 18:00:00 2 0.02 99.57%0.05 1161 2002/01/03 17:00:00 2002/01/03 18:00:00 2 0.02 99.66%0.05 1162 2003/03/04 17:00:00 2003/03/04 18:00:00 2 0.02 99.74%0.05 1163 2003/04/17 17:00:00 2003/04/17 18:00:00 2 0.02 99.83%0.05 1164 2003/04/23 17:00:00 2003/04/23 18:00:00 2 0.02 99.91%0.05 -------------End of Data----------------- 25/253/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1 1995/01/03 09:00:00 1995/01/06 01:00:00 65 17.97 0.12%58 2 1978/02/27 08:00:00 1978/03/06 07:00:00 168 9.85 0.23%29 3 1980/01/28 01:00:00 1980/01/31 15:00:00 87 8.25 0.35%19.33 4 2008/02/20 12:00:00 2008/02/25 17:00:00 126 7.18 0.46%14.5 5 1968/03/07 23:00:00 1968/03/09 17:00:00 43 6.46 0.58%11.6 6 2003/02/25 06:00:00 2003/02/28 18:00:00 85 6.01 0.69%9.67 7 1986/02/13 10:00:00 1986/02/18 00:00:00 111 5.59 0.81%8.29 8 1979/01/05 08:00:00 1979/01/07 16:00:00 57 5.34 0.93%7.25 9 1969/02/18 08:00:00 1969/02/27 01:00:00 210 5.2 1.04%6.44 10 2004/10/27 03:00:00 2004/10/29 09:00:00 55 4.39 1.16%5.8 11 1965/11/21 09:00:00 1965/11/26 04:00:00 116 4.2 1.27%5.27 12 1978/02/05 11:00:00 1978/02/15 04:00:00 234 3.97 1.39%4.83 13 1952/01/16 08:00:00 1952/01/19 11:00:00 76 3.86 1.50%4.46 14 1982/03/14 14:00:00 1982/03/19 20:00:00 127 3.86 1.62%4.14 15 1958/02/03 05:00:00 1958/02/05 21:00:00 65 3.83 1.74%3.87 16 2005/02/18 05:00:00 2005/02/25 14:00:00 178 3.81 1.85%3.63 17 1998/02/03 07:00:00 1998/02/10 05:00:00 167 3.25 1.97%3.41 18 1980/03/02 21:00:00 1980/03/04 21:00:00 49 3.24 2.08%3.22 19 1980/02/13 13:00:00 1980/02/22 11:00:00 215 3.23 2.20%3.05 20 1977/08/16 18:00:00 1977/08/19 05:00:00 60 3.15 2.31%2.9 21 1998/02/22 05:00:00 1998/02/25 22:00:00 90 3.14 2.43%2.76 22 1978/01/14 17:00:00 1978/01/18 05:00:00 85 3.1 2.55%2.64 23 1991/12/28 04:00:00 1991/12/31 08:00:00 77 3.09 2.66%2.52 24 1958/03/31 02:00:00 1958/04/05 04:00:00 123 3.04 2.78%2.42 25 1962/01/20 14:00:00 1962/01/23 14:00:00 73 3.04 2.89%2.32 26 1993/01/12 21:00:00 1993/01/19 18:00:00 166 3.01 3.01%2.23 27 2000/10/29 23:00:00 2000/10/31 19:00:00 45 2.95 3.13%2.15 28 1966/12/03 07:00:00 1966/12/08 04:00:00 118 2.9 3.24%2.07 29 2004/10/17 08:00:00 2004/10/21 22:00:00 111 2.88 3.36%2 30 1998/02/14 07:00:00 1998/02/20 23:00:00 161 2.8 3.47%1.93 31 1970/12/17 01:00:00 1970/12/22 22:00:00 142 2.78 3.59%1.87 32 1978/01/03 20:00:00 1978/01/07 13:00:00 90 2.78 3.70%1.81 33 1996/11/21 16:00:00 1996/11/23 11:00:00 44 2.77 3.82%1.76 34 1979/01/14 21:00:00 1979/01/19 21:00:00 121 2.65 3.94%1.71 35 1952/11/14 15:00:00 1952/11/17 13:00:00 71 2.63 4.05%1.66 36 1995/03/11 02:00:00 1995/03/13 05:00:00 52 2.56 4.17%1.61 37 1954/02/13 17:00:00 1954/02/15 08:00:00 40 2.51 4.28%1.57 38 2003/04/14 06:00:00 2003/04/16 08:00:00 51 2.51 4.40%1.53 39 2004/02/26 02:00:00 2004/02/27 18:00:00 41 2.5 4.51%1.49 Peak Flow Statistics Table Values SWMM.out file name: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out SWMM.out time stamp: 3/29/2023 1:24:33 PM 1/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 40 1960/04/27 06:00:00 1960/04/28 16:00:00 35 2.46 4.63%1.45 41 1991/02/27 19:00:00 1991/03/02 15:00:00 69 2.46 4.75%1.42 42 2005/01/07 09:00:00 2005/01/12 13:00:00 125 2.42 4.86%1.38 43 1983/02/24 02:00:00 1983/03/07 16:00:00 279 2.39 4.98%1.35 44 1971/12/22 08:00:00 1971/12/29 16:00:00 177 2.37 5.09%1.32 45 1993/02/07 22:00:00 1993/02/10 04:00:00 55 2.36 5.21%1.29 46 1985/11/11 07:00:00 1985/11/13 13:00:00 55 2.31 5.32%1.26 47 2007/11/30 08:00:00 2007/12/02 06:00:00 47 2.28 5.44%1.23 48 1961/12/01 21:00:00 1961/12/04 01:00:00 53 2.24 5.56%1.21 49 1980/01/09 04:00:00 1980/01/14 16:00:00 133 2.24 5.67%1.18 50 1983/12/24 11:00:00 1983/12/28 08:00:00 94 2.24 5.79%1.16 51 2008/01/05 05:00:00 2008/01/08 08:00:00 76 2.24 5.90%1.14 52 1995/03/03 13:00:00 1995/03/07 10:00:00 94 2.2 6.02%1.12 53 1972/01/16 21:00:00 1972/01/20 06:00:00 82 2.19 6.13%1.09 54 1958/02/19 10:00:00 1958/02/20 21:00:00 36 2.18 6.25%1.07 55 1960/02/01 21:00:00 1960/02/03 06:00:00 34 2.17 6.37%1.06 56 1994/02/03 23:00:00 1994/02/05 16:00:00 42 2.14 6.48%1.04 57 1963/09/17 07:00:00 1963/09/20 02:00:00 68 2.12 6.60%1.02 58 1988/12/21 01:00:00 1988/12/26 04:00:00 124 2.12 6.71%1 59 1986/11/17 19:00:00 1986/11/19 12:00:00 42 2.11 6.83%0.98 60 2003/02/11 10:00:00 2003/02/14 23:00:00 86 2.11 6.94%0.97 61 1983/01/22 17:00:00 1983/01/30 12:00:00 188 2.1 7.06%0.95 62 1965/11/14 15:00:00 1965/11/19 10:00:00 116 2.01 7.18%0.94 63 1987/10/11 13:00:00 1987/10/14 01:00:00 61 1.98 7.29%0.92 64 1963/03/17 00:00:00 1963/03/18 14:00:00 39 1.95 7.41%0.91 65 1992/02/12 14:00:00 1992/02/14 11:00:00 46 1.95 7.52%0.89 66 1985/11/29 07:00:00 1985/11/30 18:00:00 36 1.92 7.64%0.88 67 1957/01/13 05:00:00 1957/01/14 12:00:00 32 1.9 7.75%0.87 68 1987/12/16 14:00:00 1987/12/18 14:00:00 49 1.89 7.87%0.85 69 2002/11/08 09:00:00 2002/11/10 10:00:00 50 1.86 7.99%0.84 70 1969/02/06 09:00:00 1969/02/07 23:00:00 39 1.84 8.10%0.83 71 1965/12/09 09:00:00 1965/12/11 15:00:00 55 1.83 8.22%0.82 72 1967/12/18 17:00:00 1967/12/20 23:00:00 55 1.83 8.33%0.81 73 1975/04/06 00:00:00 1975/04/10 14:00:00 111 1.83 8.45%0.8 74 2004/12/28 09:00:00 2005/01/02 03:00:00 115 1.83 8.56%0.78 75 1960/01/10 12:00:00 1960/01/13 10:00:00 71 1.82 8.68%0.77 76 1967/01/22 17:00:00 1967/01/26 02:00:00 82 1.8 8.80%0.76 77 1963/11/20 04:00:00 1963/11/22 11:00:00 56 1.79 8.91%0.75 78 2001/02/13 11:00:00 2001/02/16 06:00:00 68 1.79 9.03%0.74 79 2008/01/27 01:00:00 2008/01/29 16:00:00 64 1.77 9.14%0.73 80 1978/09/05 17:00:00 1978/09/07 14:00:00 46 1.76 9.26%0.73 81 1997/01/12 16:00:00 1997/01/16 22:00:00 103 1.75 9.38%0.72 82 1952/03/07 09:00:00 1952/03/14 10:00:00 170 1.68 9.49%0.71 83 1994/03/24 23:00:00 1994/03/26 16:00:00 42 1.66 9.61%0.7 84 1986/03/08 16:00:00 1986/03/18 05:00:00 230 1.64 9.72%0.69 85 1988/11/24 02:00:00 1988/11/26 15:00:00 62 1.64 9.84%0.68 86 1956/04/12 20:00:00 1956/04/14 22:00:00 51 1.63 9.95%0.67 2/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 87 1967/03/13 11:00:00 1967/03/15 04:00:00 42 1.63 10.07%0.67 88 1969/01/24 10:00:00 1969/01/29 16:00:00 127 1.63 10.19%0.66 89 1990/02/17 11:00:00 1990/02/19 19:00:00 57 1.6 10.30%0.65 90 1957/05/10 12:00:00 1957/05/12 12:00:00 49 1.59 10.42%0.64 91 2005/01/03 08:00:00 2005/01/05 20:00:00 61 1.58 10.53%0.64 92 1954/01/18 21:00:00 1954/01/21 07:00:00 59 1.56 10.65%0.63 93 1952/11/30 02:00:00 1952/12/03 06:00:00 77 1.54 10.76%0.62 94 1985/11/24 17:00:00 1985/11/26 16:00:00 48 1.54 10.88%0.62 95 1958/03/15 17:00:00 1958/03/17 17:00:00 49 1.53 11.00%0.61 96 2003/03/15 10:00:00 2003/03/18 02:00:00 65 1.53 11.11%0.6 97 1967/11/19 08:00:00 1967/11/22 20:00:00 85 1.52 11.23%0.6 98 1991/03/25 03:00:00 1991/03/28 10:00:00 80 1.47 11.34%0.59 99 1963/02/09 18:00:00 1963/02/12 09:00:00 64 1.45 11.46%0.59 100 1970/11/28 22:00:00 1970/12/02 04:00:00 79 1.45 11.57%0.58 101 1951/12/28 21:00:00 1951/12/31 19:00:00 71 1.44 11.69%0.57 102 1983/11/24 22:00:00 1983/11/26 06:00:00 33 1.44 11.81%0.57 103 1992/12/07 10:00:00 1992/12/09 01:00:00 40 1.43 11.92%0.56 104 1986/09/24 02:00:00 1986/09/26 10:00:00 57 1.42 12.04%0.56 105 1993/02/18 13:00:00 1993/02/21 15:00:00 75 1.42 12.15%0.55 106 1981/11/26 23:00:00 1981/11/30 06:00:00 80 1.41 12.27%0.55 107 1958/03/20 20:00:00 1958/03/23 13:00:00 66 1.39 12.38%0.54 108 1954/11/11 01:00:00 1954/11/12 21:00:00 45 1.37 12.50%0.54 109 1962/02/07 22:00:00 1962/02/12 16:00:00 115 1.37 12.62%0.53 110 1970/02/28 14:00:00 1970/03/03 09:00:00 68 1.37 12.73%0.53 111 1959/02/11 09:00:00 1959/02/13 05:00:00 45 1.36 12.85%0.52 112 1952/03/15 21:00:00 1952/03/17 23:00:00 51 1.35 12.96%0.52 113 2005/04/28 09:00:00 2005/04/29 14:00:00 30 1.34 13.08%0.51 114 1982/12/07 22:00:00 1982/12/09 05:00:00 32 1.33 13.19%0.51 115 1957/01/26 07:00:00 1957/01/30 22:00:00 112 1.32 13.31%0.5 116 1981/03/18 19:00:00 1981/03/21 08:00:00 62 1.32 13.43%0.5 117 1988/04/20 02:00:00 1988/04/24 09:00:00 104 1.31 13.54%0.5 118 1974/03/08 01:00:00 1974/03/09 17:00:00 41 1.29 13.66%0.49 119 1982/12/22 11:00:00 1982/12/24 10:00:00 48 1.28 13.77%0.49 120 1956/01/25 18:00:00 1956/01/28 11:00:00 66 1.24 13.89%0.48 121 1985/12/11 04:00:00 1985/12/12 14:00:00 35 1.24 14.00%0.48 122 1958/04/06 18:00:00 1958/04/08 20:00:00 51 1.23 14.12%0.48 123 1992/03/20 20:00:00 1992/03/24 19:00:00 96 1.22 14.24%0.47 124 1965/04/07 06:00:00 1965/04/11 00:00:00 91 1.2 14.35%0.47 125 1974/12/04 07:00:00 1974/12/05 17:00:00 35 1.19 14.47%0.46 126 1988/04/14 20:00:00 1988/04/16 05:00:00 34 1.19 14.58%0.46 127 1966/11/07 15:00:00 1966/11/09 02:00:00 36 1.18 14.70%0.46 128 2005/02/11 04:00:00 2005/02/14 01:00:00 70 1.18 14.81%0.45 129 1976/07/08 12:00:00 1976/07/09 19:00:00 32 1.17 14.93%0.45 130 1976/07/22 11:00:00 1976/07/23 18:00:00 32 1.17 15.05%0.45 131 1988/01/17 06:00:00 1988/01/19 00:00:00 43 1.17 15.16%0.44 132 1977/12/25 19:00:00 1977/12/31 07:00:00 133 1.14 15.28%0.44 133 1992/02/15 13:00:00 1992/02/17 07:00:00 43 1.11 15.39%0.44 3/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 134 1977/01/05 16:00:00 1977/01/08 09:00:00 66 1.1 15.51%0.43 135 1977/05/08 00:00:00 1977/05/10 13:00:00 62 1.1 15.63%0.43 136 1959/12/24 10:00:00 1959/12/25 22:00:00 37 1.08 15.74%0.43 137 1976/07/15 13:00:00 1976/07/16 21:00:00 33 1.08 15.86%0.42 138 1973/11/22 22:00:00 1973/11/24 07:00:00 34 1.07 15.97%0.42 139 2007/01/30 15:00:00 2007/02/01 03:00:00 37 1.07 16.09%0.42 140 1992/01/03 11:00:00 1992/01/09 08:00:00 142 1.05 16.20%0.41 141 1994/03/06 08:00:00 1994/03/08 13:00:00 54 1.04 16.32%0.41 142 2006/10/14 02:00:00 2006/10/15 06:00:00 29 1.03 16.44%0.41 143 1960/02/28 20:00:00 1960/03/02 12:00:00 65 1.02 16.55%0.41 144 1968/12/25 19:00:00 1968/12/27 09:00:00 39 1.01 16.67%0.4 145 1967/04/11 08:00:00 1967/04/12 19:00:00 36 1 16.78%0.4 146 1976/03/01 16:00:00 1976/03/03 22:00:00 55 1 16.90%0.4 147 1993/01/06 03:00:00 1993/01/09 11:00:00 81 0.99 17.01%0.4 148 1994/03/19 03:00:00 1994/03/21 11:00:00 57 0.98 17.13%0.39 149 1975/03/08 08:00:00 1975/03/12 13:00:00 102 0.97 17.25%0.39 150 1983/09/29 12:00:00 1983/10/02 14:00:00 75 0.97 17.36%0.39 151 1981/02/08 19:00:00 1981/02/10 11:00:00 41 0.96 17.48%0.38 152 1984/12/26 16:00:00 1984/12/29 01:00:00 58 0.96 17.59%0.38 153 1994/02/17 11:00:00 1994/02/19 09:00:00 47 0.96 17.71%0.38 154 2001/01/10 22:00:00 2001/01/13 14:00:00 65 0.96 17.82%0.38 155 1976/09/10 02:00:00 1976/09/12 10:00:00 57 0.95 17.94%0.37 156 1992/02/06 09:00:00 1992/02/08 16:00:00 56 0.95 18.06%0.37 157 1965/03/31 14:00:00 1965/04/05 19:00:00 126 0.94 18.17%0.37 158 1983/04/18 04:00:00 1983/04/22 07:00:00 100 0.94 18.29%0.37 159 1988/02/02 03:00:00 1988/02/03 21:00:00 43 0.93 18.40%0.37 160 1997/01/25 21:00:00 1997/01/27 16:00:00 44 0.93 18.52%0.36 161 1977/03/24 22:00:00 1977/03/26 14:00:00 41 0.92 18.63%0.36 162 2004/02/21 20:00:00 2004/02/24 12:00:00 65 0.91 18.75%0.36 163 1978/01/09 17:00:00 1978/01/12 02:00:00 58 0.9 18.87%0.36 164 1985/02/09 07:00:00 1985/02/10 17:00:00 35 0.9 18.98%0.35 165 2006/04/04 19:00:00 2006/04/06 10:00:00 40 0.9 19.10%0.35 166 1981/12/30 08:00:00 1982/01/03 09:00:00 98 0.88 19.21%0.35 167 1958/01/25 04:00:00 1958/01/27 19:00:00 64 0.87 19.33%0.35 168 1995/01/07 14:00:00 1995/01/09 10:00:00 45 0.87 19.44%0.35 169 1995/01/10 16:00:00 1995/01/13 18:00:00 75 0.86 19.56%0.34 170 1978/12/17 00:00:00 1978/12/20 14:00:00 87 0.85 19.68%0.34 171 1996/12/09 17:00:00 1996/12/13 02:00:00 82 0.85 19.79%0.34 172 2006/02/27 21:00:00 2006/03/01 15:00:00 43 0.85 19.91%0.34 173 1991/03/19 01:00:00 1991/03/22 14:00:00 86 0.84 20.02%0.34 174 1976/02/04 06:00:00 1976/02/11 16:00:00 179 0.83 20.14%0.33 175 1977/01/03 00:00:00 1977/01/04 07:00:00 32 0.83 20.25%0.33 176 2001/01/26 14:00:00 2001/01/28 12:00:00 47 0.83 20.37%0.33 177 1979/11/07 19:00:00 1979/11/09 07:00:00 37 0.81 20.49%0.33 178 1988/12/15 11:00:00 1988/12/19 21:00:00 107 0.81 20.60%0.33 179 1978/03/30 13:00:00 1978/04/01 19:00:00 55 0.8 20.72%0.32 180 1965/02/06 01:00:00 1965/02/08 03:00:00 51 0.79 20.83%0.32 4/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 181 1979/03/17 05:00:00 1979/03/22 01:00:00 117 0.78 20.95%0.32 182 1964/11/17 15:00:00 1964/11/19 00:00:00 34 0.77 21.06%0.32 183 1966/02/06 13:00:00 1966/02/09 05:00:00 65 0.77 21.18%0.32 184 1973/03/20 09:00:00 1973/03/22 08:00:00 48 0.77 21.30%0.32 185 1989/03/25 12:00:00 1989/03/27 07:00:00 44 0.77 21.41%0.31 186 2002/12/20 07:00:00 2002/12/22 18:00:00 60 0.77 21.53%0.31 187 1957/02/28 19:00:00 1957/03/02 16:00:00 46 0.76 21.64%0.31 188 1982/02/08 15:00:00 1982/02/12 00:00:00 82 0.75 21.76%0.31 189 1983/11/11 20:00:00 1983/11/14 05:00:00 58 0.75 21.88%0.31 190 2001/02/23 11:00:00 2001/03/01 12:00:00 146 0.75 21.99%0.31 191 1959/02/21 10:00:00 1959/02/23 02:00:00 41 0.74 22.11%0.3 192 1980/03/06 00:00:00 1980/03/07 17:00:00 42 0.73 22.22%0.3 193 1982/11/09 17:00:00 1982/11/11 19:00:00 51 0.73 22.34%0.3 194 1960/01/14 19:00:00 1960/01/16 07:00:00 37 0.72 22.45%0.3 195 1990/04/04 08:00:00 1990/04/05 17:00:00 34 0.72 22.57%0.3 196 1992/03/02 08:00:00 1992/03/04 00:00:00 41 0.72 22.69%0.3 197 1996/10/30 14:00:00 1996/10/31 22:00:00 33 0.72 22.80%0.29 198 2007/04/20 16:00:00 2007/04/21 21:00:00 30 0.72 22.92%0.29 199 1965/12/12 21:00:00 1965/12/17 13:00:00 113 0.71 23.03%0.29 200 1998/11/08 09:00:00 1998/11/09 19:00:00 35 0.7 23.15%0.29 201 1999/01/25 07:00:00 1999/01/28 02:00:00 68 0.7 23.26%0.29 202 1981/02/28 14:00:00 1981/03/04 00:00:00 83 0.69 23.38%0.29 203 1971/04/14 11:00:00 1971/04/15 18:00:00 32 0.68 23.50%0.29 204 1978/03/09 17:00:00 1978/03/13 15:00:00 95 0.68 23.61%0.28 205 1981/03/05 03:00:00 1981/03/06 20:00:00 42 0.68 23.73%0.28 206 1951/08/28 10:00:00 1951/08/29 19:00:00 34 0.67 23.84%0.28 207 1951/12/11 22:00:00 1951/12/13 13:00:00 40 0.67 23.96%0.28 208 1984/11/23 08:00:00 1984/11/26 01:00:00 66 0.67 24.07%0.28 209 1972/11/14 15:00:00 1972/11/18 17:00:00 99 0.66 24.19%0.28 210 1988/11/14 07:00:00 1988/11/15 13:00:00 31 0.66 24.31%0.28 211 1952/01/13 05:00:00 1952/01/14 16:00:00 36 0.65 24.42%0.28 212 1973/03/11 06:00:00 1973/03/13 11:00:00 54 0.65 24.54%0.27 213 1993/03/26 00:00:00 1993/03/29 08:00:00 81 0.65 24.65%0.27 214 1961/01/26 10:00:00 1961/01/27 18:00:00 33 0.64 24.77%0.27 215 1971/02/17 00:00:00 1971/02/18 16:00:00 41 0.64 24.88%0.27 216 1974/01/07 16:00:00 1974/01/10 00:00:00 57 0.64 25.00%0.27 217 1986/04/06 03:00:00 1986/04/07 15:00:00 37 0.64 25.12%0.27 218 1999/04/11 22:00:00 1999/04/13 08:00:00 35 0.64 25.23%0.27 219 1955/01/16 10:00:00 1955/01/20 11:00:00 98 0.63 25.35%0.27 220 1974/10/28 12:00:00 1974/10/30 15:00:00 52 0.63 25.46%0.26 221 1976/12/30 15:00:00 1977/01/01 12:00:00 46 0.63 25.58%0.26 222 1992/12/27 21:00:00 1992/12/30 13:00:00 65 0.63 25.69%0.26 223 1995/04/16 09:00:00 1995/04/19 22:00:00 86 0.63 25.81%0.26 224 1958/02/25 08:00:00 1958/02/26 14:00:00 31 0.62 25.93%0.26 225 1970/02/10 05:00:00 1970/02/12 08:00:00 52 0.62 26.04%0.26 226 1970/03/05 00:00:00 1970/03/06 06:00:00 31 0.62 26.16%0.26 227 1973/02/11 08:00:00 1973/02/14 09:00:00 74 0.62 26.27%0.26 5/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 228 1979/03/01 10:00:00 1979/03/02 22:00:00 37 0.62 26.39%0.25 229 1962/03/18 19:00:00 1962/03/20 14:00:00 44 0.61 26.50%0.25 230 1993/01/31 00:00:00 1993/02/01 03:00:00 28 0.61 26.62%0.25 231 1979/10/20 04:00:00 1979/10/21 20:00:00 41 0.6 26.74%0.25 232 1982/04/01 10:00:00 1982/04/02 22:00:00 37 0.6 26.85%0.25 233 1983/03/17 04:00:00 1983/03/26 03:00:00 216 0.6 26.97%0.25 234 1959/04/26 06:00:00 1959/04/27 12:00:00 31 0.59 27.08%0.25 235 1960/09/11 05:00:00 1960/09/12 13:00:00 33 0.59 27.20%0.25 236 1981/01/28 07:00:00 1981/01/31 10:00:00 76 0.59 27.31%0.25 237 1981/02/25 21:00:00 1981/02/27 04:00:00 32 0.59 27.43%0.25 238 1952/12/20 12:00:00 1952/12/21 19:00:00 32 0.58 27.55%0.24 239 1954/03/16 23:00:00 1954/03/18 10:00:00 36 0.58 27.66%0.24 240 1983/04/29 08:00:00 1983/05/03 02:00:00 91 0.58 27.78%0.24 241 1984/12/18 09:00:00 1984/12/21 08:00:00 72 0.58 27.89%0.24 242 1987/01/06 21:00:00 1987/01/08 08:00:00 36 0.58 28.01%0.24 243 1990/01/17 01:00:00 1990/01/19 06:00:00 54 0.58 28.13%0.24 244 2003/12/25 01:00:00 2003/12/27 00:00:00 48 0.58 28.24%0.24 245 1955/04/30 21:00:00 1955/05/02 23:00:00 51 0.57 28.36%0.24 246 1957/04/20 16:00:00 1957/04/23 07:00:00 64 0.57 28.47%0.24 247 1993/06/05 14:00:00 1993/06/06 21:00:00 32 0.56 28.59%0.24 248 1958/03/06 10:00:00 1958/03/08 05:00:00 44 0.55 28.70%0.23 249 1976/08/30 11:00:00 1976/08/31 17:00:00 31 0.55 28.82%0.23 250 1979/03/27 06:00:00 1979/03/29 14:00:00 57 0.55 28.94%0.23 251 1982/01/20 05:00:00 1982/01/22 15:00:00 59 0.55 29.05%0.23 252 1983/12/03 17:00:00 1983/12/05 01:00:00 33 0.55 29.17%0.23 253 1986/10/09 21:00:00 1986/10/12 02:00:00 54 0.55 29.28%0.23 254 1959/02/16 04:00:00 1959/02/18 03:00:00 48 0.54 29.40%0.23 255 1964/01/21 08:00:00 1964/01/23 21:00:00 62 0.54 29.51%0.23 256 1991/01/09 15:00:00 1991/01/10 18:00:00 28 0.54 29.63%0.23 257 1993/11/30 05:00:00 1993/12/01 11:00:00 31 0.54 29.75%0.23 258 1954/03/20 12:00:00 1954/03/26 07:00:00 140 0.53 29.86%0.23 259 1982/01/05 07:00:00 1982/01/06 19:00:00 37 0.53 29.98%0.22 260 1986/02/08 00:00:00 1986/02/09 18:00:00 43 0.53 30.09%0.22 261 1959/12/21 02:00:00 1959/12/22 14:00:00 37 0.52 30.21%0.22 262 1967/11/30 17:00:00 1967/12/01 21:00:00 29 0.52 30.32%0.22 263 1964/12/27 09:00:00 1964/12/29 11:00:00 51 0.51 30.44%0.22 264 1987/12/04 22:00:00 1987/12/06 06:00:00 33 0.51 30.56%0.22 265 1969/11/06 20:00:00 1969/11/08 15:00:00 44 0.5 30.67%0.22 266 1984/12/08 00:00:00 1984/12/09 06:00:00 31 0.5 30.79%0.22 267 2006/03/10 18:00:00 2006/03/12 19:00:00 50 0.5 30.90%0.22 268 1990/05/28 08:00:00 1990/05/29 18:00:00 35 0.49 31.02%0.22 269 2002/12/16 13:00:00 2002/12/18 06:00:00 42 0.49 31.13%0.22 270 1959/12/10 01:00:00 1959/12/11 09:00:00 33 0.48 31.25%0.22 271 1980/03/26 00:00:00 1980/03/27 05:00:00 30 0.48 31.37%0.21 272 1994/01/25 00:00:00 1994/01/28 12:00:00 85 0.48 31.48%0.21 273 2001/04/07 14:00:00 2001/04/11 11:00:00 94 0.48 31.60%0.21 274 1952/12/30 20:00:00 1953/01/01 08:00:00 37 0.47 31.71%0.21 6/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 275 1957/12/05 04:00:00 1957/12/06 18:00:00 39 0.47 31.83%0.21 276 1969/03/21 14:00:00 1969/03/23 02:00:00 37 0.47 31.94%0.21 277 1972/12/04 16:00:00 1972/12/06 00:00:00 33 0.47 32.06%0.21 278 1979/01/30 20:00:00 1979/02/03 17:00:00 94 0.47 32.18%0.21 279 1999/03/25 16:00:00 1999/03/27 00:00:00 33 0.46 32.29%0.21 280 2001/12/09 09:00:00 2001/12/11 03:00:00 43 0.46 32.41%0.21 281 2004/12/04 16:00:00 2004/12/06 22:00:00 55 0.46 32.52%0.21 282 1957/01/07 15:00:00 1957/01/08 23:00:00 33 0.45 32.64%0.21 283 1957/10/13 23:00:00 1957/10/15 13:00:00 39 0.45 32.75%0.21 284 1960/11/26 19:00:00 1960/11/28 01:00:00 31 0.45 32.87%0.2 285 1963/11/15 17:00:00 1963/11/17 00:00:00 32 0.45 32.99%0.2 286 1965/12/29 19:00:00 1966/01/01 17:00:00 71 0.45 33.10%0.2 287 1973/03/04 06:00:00 1973/03/09 20:00:00 135 0.45 33.22%0.2 288 1982/11/29 13:00:00 1982/12/01 18:00:00 54 0.45 33.33%0.2 289 1962/02/19 11:00:00 1962/02/22 12:00:00 74 0.44 33.45%0.2 290 1986/12/06 08:00:00 1986/12/08 08:00:00 49 0.44 33.56%0.2 291 1997/12/06 13:00:00 1997/12/08 14:00:00 50 0.44 33.68%0.2 292 1979/02/21 03:00:00 1979/02/24 02:00:00 72 0.43 33.80%0.2 293 1995/02/14 01:00:00 1995/02/16 00:00:00 48 0.43 33.91%0.2 294 2004/04/01 22:00:00 2004/04/03 03:00:00 30 0.43 34.03%0.2 295 2006/05/22 06:00:00 2006/05/23 12:00:00 31 0.43 34.14%0.2 296 1955/01/10 06:00:00 1955/01/11 15:00:00 34 0.42 34.26%0.2 297 1955/02/26 13:00:00 1955/03/01 01:00:00 61 0.42 34.38%0.2 298 1980/10/16 05:00:00 1980/10/17 11:00:00 31 0.42 34.49%0.2 299 1980/12/04 13:00:00 1980/12/08 17:00:00 101 0.42 34.61%0.19 300 1984/10/17 07:00:00 1984/10/18 12:00:00 30 0.42 34.72%0.19 301 2000/03/04 19:00:00 2000/03/09 09:00:00 111 0.42 34.84%0.19 302 1952/02/29 21:00:00 1952/03/02 15:00:00 43 0.41 34.95%0.19 303 1957/03/16 10:00:00 1957/03/17 17:00:00 32 0.4 35.07%0.19 304 1986/01/30 05:00:00 1986/02/02 00:00:00 68 0.4 35.19%0.19 305 1994/02/07 05:00:00 1994/02/09 07:00:00 51 0.4 35.30%0.19 306 1955/02/16 21:00:00 1955/02/18 17:00:00 45 0.39 35.42%0.19 307 1980/04/21 05:00:00 1980/04/24 09:00:00 77 0.39 35.53%0.19 308 2000/02/20 07:00:00 2000/02/25 01:00:00 115 0.39 35.65%0.19 309 2001/11/24 13:00:00 2001/11/26 03:00:00 39 0.39 35.76%0.19 310 1987/04/04 08:00:00 1987/04/05 21:00:00 38 0.38 35.88%0.19 311 1952/04/10 12:00:00 1952/04/12 03:00:00 40 0.37 36.00%0.19 312 1980/03/10 17:00:00 1980/03/11 21:00:00 29 0.37 36.11%0.19 313 1987/02/23 17:00:00 1987/02/26 17:00:00 73 0.37 36.23%0.19 314 1999/02/04 10:00:00 1999/02/06 06:00:00 45 0.37 36.34%0.19 315 2007/12/07 07:00:00 2007/12/09 21:00:00 63 0.37 36.46%0.18 316 1975/02/03 10:00:00 1975/02/05 11:00:00 50 0.36 36.57%0.18 317 1979/02/14 04:00:00 1979/02/15 10:00:00 31 0.36 36.69%0.18 318 2007/08/26 12:00:00 2007/08/27 16:00:00 29 0.36 36.81%0.18 319 1961/11/20 17:00:00 1961/11/21 23:00:00 31 0.35 36.92%0.18 320 1974/12/28 09:00:00 1974/12/30 14:00:00 54 0.35 37.04%0.18 321 2000/04/17 18:00:00 2000/04/19 11:00:00 42 0.35 37.15%0.18 7/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 322 2000/10/26 11:00:00 2000/10/28 14:00:00 52 0.35 37.27%0.18 323 2006/02/18 01:00:00 2006/02/20 15:00:00 63 0.35 37.38%0.18 324 1951/11/22 23:00:00 1951/11/24 10:00:00 36 0.34 37.50%0.18 325 1954/12/10 00:00:00 1954/12/11 11:00:00 36 0.34 37.62%0.18 326 1963/04/17 07:00:00 1963/04/18 15:00:00 33 0.34 37.73%0.18 327 1974/03/02 11:00:00 1974/03/04 01:00:00 39 0.34 37.85%0.18 328 1985/12/02 13:00:00 1985/12/04 04:00:00 40 0.34 37.96%0.18 329 2006/03/28 22:00:00 2006/03/30 12:00:00 39 0.34 38.08%0.18 330 1960/11/05 21:00:00 1960/11/07 16:00:00 44 0.33 38.19%0.18 331 1961/11/25 04:00:00 1961/11/27 02:00:00 47 0.33 38.31%0.18 332 1962/02/15 20:00:00 1962/02/17 18:00:00 47 0.33 38.43%0.18 333 1966/01/30 08:00:00 1966/01/31 22:00:00 39 0.33 38.54%0.17 334 1968/02/13 06:00:00 1968/02/14 14:00:00 33 0.33 38.66%0.17 335 1972/11/11 05:00:00 1972/11/12 15:00:00 35 0.33 38.77%0.17 336 1980/01/17 21:00:00 1980/01/20 01:00:00 53 0.33 38.89%0.17 337 1998/05/12 15:00:00 1998/05/14 04:00:00 38 0.33 39.00%0.17 338 2004/02/03 00:00:00 2004/02/04 18:00:00 43 0.33 39.12%0.17 339 2006/12/10 01:00:00 2006/12/11 15:00:00 39 0.33 39.24%0.17 340 1953/03/01 04:00:00 1953/03/03 05:00:00 50 0.32 39.35%0.17 341 1958/09/24 00:00:00 1958/09/25 10:00:00 35 0.32 39.47%0.17 342 1973/02/28 02:00:00 1973/03/01 12:00:00 35 0.32 39.58%0.17 343 1982/09/26 05:00:00 1982/09/27 21:00:00 41 0.32 39.70%0.17 344 1983/02/02 17:00:00 1983/02/04 11:00:00 43 0.32 39.81%0.17 345 1990/04/16 23:00:00 1990/04/18 18:00:00 44 0.32 39.93%0.17 346 1993/02/23 19:00:00 1993/02/25 06:00:00 36 0.32 40.05%0.17 347 1995/03/21 13:00:00 1995/03/24 18:00:00 78 0.32 40.16%0.17 348 1952/01/25 06:00:00 1952/01/26 13:00:00 32 0.31 40.28%0.17 349 1954/03/30 05:00:00 1954/03/31 10:00:00 30 0.31 40.39%0.17 350 1955/04/22 05:00:00 1955/04/23 13:00:00 33 0.31 40.51%0.17 351 1962/03/06 09:00:00 1962/03/08 01:00:00 41 0.31 40.63%0.17 352 1963/09/04 10:00:00 1963/09/05 16:00:00 31 0.31 40.74%0.17 353 1973/02/15 12:00:00 1973/02/16 18:00:00 31 0.31 40.86%0.16 354 1973/11/17 06:00:00 1973/11/20 01:00:00 68 0.31 40.97%0.16 355 1977/12/18 02:00:00 1977/12/19 11:00:00 34 0.31 41.09%0.16 356 1996/02/20 09:00:00 1996/02/23 02:00:00 66 0.31 41.20%0.16 357 1996/12/27 18:00:00 1996/12/29 10:00:00 41 0.31 41.32%0.16 358 1998/01/29 17:00:00 1998/01/30 22:00:00 30 0.31 41.44%0.16 359 2007/12/19 00:00:00 2007/12/20 15:00:00 40 0.31 41.55%0.16 360 1952/11/23 01:00:00 1952/11/24 11:00:00 35 0.3 41.67%0.16 361 1953/11/14 18:00:00 1953/11/16 08:00:00 39 0.3 41.78%0.16 362 1955/11/14 08:00:00 1955/11/15 12:00:00 29 0.3 41.90%0.16 363 1957/06/10 05:00:00 1957/06/11 08:00:00 28 0.3 42.01%0.16 364 1957/10/31 01:00:00 1957/11/01 06:00:00 30 0.3 42.13%0.16 365 1959/02/08 05:00:00 1959/02/10 00:00:00 44 0.3 42.25%0.16 366 1964/03/23 01:00:00 1964/03/25 00:00:00 48 0.3 42.36%0.16 367 1965/03/12 17:00:00 1965/03/14 17:00:00 49 0.3 42.48%0.16 368 1967/03/31 13:00:00 1967/04/01 15:00:00 27 0.3 42.59%0.16 8/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 369 1967/04/18 22:00:00 1967/04/23 03:00:00 102 0.3 42.71%0.16 370 1968/04/01 21:00:00 1968/04/03 03:00:00 31 0.3 42.82%0.16 371 1975/02/09 08:00:00 1975/02/11 03:00:00 44 0.3 42.94%0.16 372 1975/11/27 19:00:00 1975/11/29 20:00:00 50 0.3 43.06%0.16 373 1978/01/19 08:00:00 1978/01/20 14:00:00 31 0.3 43.17%0.16 374 1982/12/29 21:00:00 1982/12/31 00:00:00 28 0.3 43.29%0.16 375 1983/04/12 09:00:00 1983/04/14 09:00:00 49 0.3 43.40%0.16 376 1984/12/16 04:00:00 1984/12/17 08:00:00 29 0.3 43.52%0.15 377 1995/01/24 01:00:00 1995/01/27 13:00:00 85 0.3 43.63%0.15 378 1996/02/25 11:00:00 1996/02/29 01:00:00 87 0.3 43.75%0.15 379 1996/03/12 19:00:00 1996/03/14 15:00:00 45 0.3 43.87%0.15 380 1998/03/25 17:00:00 1998/04/03 01:00:00 201 0.3 43.98%0.15 381 2005/03/22 22:00:00 2005/03/24 01:00:00 28 0.3 44.10%0.15 382 2008/02/03 09:00:00 2008/02/04 21:00:00 37 0.3 44.21%0.15 383 1953/02/23 12:00:00 1953/02/24 20:00:00 33 0.29 44.33%0.15 384 1953/04/27 22:00:00 1953/04/30 11:00:00 62 0.29 44.44%0.15 385 1957/01/05 10:00:00 1957/01/06 13:00:00 28 0.29 44.56%0.15 386 1958/03/27 14:00:00 1958/03/28 17:00:00 28 0.29 44.68%0.15 387 1960/02/09 00:00:00 1960/02/11 09:00:00 58 0.29 44.79%0.15 388 1963/04/26 03:00:00 1963/04/27 08:00:00 30 0.29 44.91%0.15 389 1965/01/24 08:00:00 1965/01/25 09:00:00 26 0.29 45.02%0.15 390 1966/10/10 14:00:00 1966/10/11 17:00:00 28 0.29 45.14%0.15 391 1978/11/21 18:00:00 1978/11/23 03:00:00 34 0.29 45.25%0.15 392 1978/11/24 11:00:00 1978/11/25 15:00:00 29 0.29 45.37%0.15 393 1982/03/25 23:00:00 1982/03/27 07:00:00 33 0.29 45.49%0.15 394 1983/11/20 10:00:00 1983/11/21 19:00:00 34 0.29 45.60%0.15 395 1990/06/09 16:00:00 1990/06/11 18:00:00 51 0.29 45.72%0.15 396 2000/02/11 18:00:00 2000/02/15 09:00:00 88 0.29 45.83%0.15 397 2005/10/16 20:00:00 2005/10/19 09:00:00 62 0.29 45.95%0.15 398 1955/03/11 01:00:00 1955/03/12 05:00:00 29 0.28 46.06%0.15 399 1968/11/14 20:00:00 1968/11/16 01:00:00 30 0.28 46.18%0.15 400 1969/04/05 22:00:00 1969/04/07 01:00:00 28 0.28 46.30%0.15 401 1971/10/16 09:00:00 1971/10/18 07:00:00 47 0.28 46.41%0.15 402 1975/12/20 16:00:00 1975/12/21 20:00:00 29 0.28 46.53%0.14 403 1976/04/15 17:00:00 1976/04/17 06:00:00 38 0.28 46.64%0.14 404 1982/01/28 19:00:00 1982/01/30 03:00:00 33 0.28 46.76%0.14 405 1982/11/19 02:00:00 1982/11/21 04:00:00 51 0.28 46.88%0.14 406 1987/03/22 03:00:00 1987/03/23 04:00:00 26 0.28 46.99%0.14 407 1987/10/31 08:00:00 1987/11/02 23:00:00 64 0.28 47.11%0.14 408 1990/02/04 13:00:00 1990/02/05 15:00:00 27 0.28 47.22%0.14 409 1998/12/04 03:00:00 1998/12/07 09:00:00 79 0.28 47.34%0.14 410 2005/12/31 18:00:00 2006/01/03 19:00:00 74 0.28 47.45%0.14 411 1951/12/19 10:00:00 1951/12/20 11:00:00 26 0.27 47.57%0.14 412 1957/02/23 08:00:00 1957/02/24 11:00:00 28 0.27 47.69%0.14 413 1969/01/14 02:00:00 1969/01/15 11:00:00 34 0.27 47.80%0.14 414 1974/03/27 08:00:00 1974/03/28 10:00:00 27 0.27 47.92%0.14 415 1976/04/13 02:00:00 1976/04/14 12:00:00 35 0.27 48.03%0.14 9/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 416 1984/04/27 23:00:00 1984/04/29 00:00:00 26 0.27 48.15%0.14 417 1987/02/13 22:00:00 1987/02/16 02:00:00 53 0.27 48.26%0.14 418 1988/01/05 16:00:00 1988/01/06 17:00:00 26 0.27 48.38%0.14 419 1988/08/24 05:00:00 1988/08/25 14:00:00 34 0.27 48.50%0.14 420 1991/10/27 02:00:00 1991/10/28 09:00:00 32 0.27 48.61%0.14 421 1996/12/06 01:00:00 1996/12/07 07:00:00 31 0.27 48.73%0.14 422 1998/12/01 18:00:00 1998/12/02 19:00:00 26 0.27 48.84%0.14 423 2004/03/02 00:00:00 2004/03/03 03:00:00 28 0.27 48.96%0.14 424 2007/02/28 07:00:00 2007/03/01 18:00:00 36 0.27 49.07%0.14 425 1952/12/28 10:00:00 1952/12/29 11:00:00 26 0.26 49.19%0.14 426 1957/12/15 11:00:00 1957/12/18 06:00:00 68 0.26 49.31%0.14 427 1958/03/11 03:00:00 1958/03/12 21:00:00 43 0.26 49.42%0.14 428 1960/01/25 21:00:00 1960/01/26 23:00:00 27 0.26 49.54%0.14 429 1960/11/13 00:00:00 1960/11/14 00:00:00 25 0.26 49.65%0.14 430 1964/11/09 15:00:00 1964/11/12 10:00:00 68 0.26 49.77%0.14 431 1969/11/10 04:00:00 1969/11/11 04:00:00 25 0.26 49.88%0.14 432 1971/02/23 05:00:00 1971/02/24 04:00:00 24 0.26 50.00%0.13 433 1975/04/17 06:00:00 1975/04/18 10:00:00 29 0.26 50.12%0.13 434 1978/11/10 18:00:00 1978/11/16 04:00:00 131 0.26 50.23%0.13 435 1983/02/06 14:00:00 1983/02/09 07:00:00 66 0.26 50.35%0.13 436 1984/12/10 22:00:00 1984/12/13 15:00:00 66 0.26 50.46%0.13 437 1985/01/07 13:00:00 1985/01/09 01:00:00 37 0.26 50.58%0.13 438 1987/11/04 21:00:00 1987/11/06 09:00:00 37 0.26 50.69%0.13 439 1993/12/11 19:00:00 1993/12/13 01:00:00 31 0.26 50.81%0.13 440 1994/11/10 13:00:00 1994/11/11 11:00:00 23 0.26 50.93%0.13 441 1996/01/31 06:00:00 1996/02/02 12:00:00 55 0.26 51.04%0.13 442 2001/03/06 15:00:00 2001/03/08 13:00:00 47 0.26 51.16%0.13 443 2006/03/20 05:00:00 2006/03/22 04:00:00 48 0.26 51.27%0.13 444 1951/12/05 02:00:00 1951/12/06 04:00:00 27 0.25 51.39%0.13 445 1953/10/22 09:00:00 1953/10/23 07:00:00 23 0.25 51.50%0.13 446 1954/01/24 13:00:00 1954/01/25 23:00:00 35 0.25 51.62%0.13 447 1957/05/19 10:00:00 1957/05/22 05:00:00 68 0.25 51.74%0.13 448 1957/10/21 06:00:00 1957/10/22 03:00:00 22 0.25 51.85%0.13 449 1959/01/06 09:00:00 1959/01/07 08:00:00 24 0.25 51.97%0.13 450 1960/11/03 21:00:00 1960/11/04 19:00:00 23 0.25 52.08%0.13 451 1965/01/01 00:00:00 1965/01/01 20:00:00 21 0.25 52.20%0.13 452 1970/01/16 19:00:00 1970/01/17 17:00:00 23 0.25 52.31%0.13 453 1976/11/12 03:00:00 1976/11/13 04:00:00 26 0.25 52.43%0.13 454 1977/05/24 07:00:00 1977/05/25 07:00:00 25 0.25 52.55%0.13 455 1978/01/30 13:00:00 1978/01/31 21:00:00 33 0.25 52.66%0.13 456 1980/03/21 12:00:00 1980/03/22 21:00:00 34 0.25 52.78%0.13 457 1982/01/10 22:00:00 1982/01/12 03:00:00 30 0.25 52.89%0.13 458 1982/09/15 09:00:00 1982/09/18 09:00:00 73 0.25 53.01%0.13 459 1983/12/09 17:00:00 1983/12/10 16:00:00 24 0.25 53.13%0.13 460 1984/11/13 09:00:00 1984/11/14 08:00:00 24 0.25 53.24%0.13 461 1985/02/02 05:00:00 1985/02/04 16:00:00 60 0.25 53.36%0.13 462 1989/02/02 09:00:00 1989/02/05 16:00:00 80 0.25 53.47%0.13 10/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 463 1989/05/14 09:00:00 1989/05/16 05:00:00 45 0.25 53.59%0.13 464 1990/01/31 03:00:00 1990/02/01 00:00:00 22 0.25 53.70%0.13 465 1991/03/15 16:00:00 1991/03/16 13:00:00 22 0.25 53.82%0.13 466 1992/03/27 06:00:00 1992/03/28 05:00:00 24 0.25 53.94%0.12 467 1997/01/22 04:00:00 1997/01/24 17:00:00 62 0.25 54.05%0.12 468 1998/04/11 14:00:00 1998/04/12 18:00:00 29 0.25 54.17%0.12 469 2007/02/11 14:00:00 2007/02/14 14:00:00 73 0.25 54.28%0.12 470 1955/11/17 08:00:00 1955/11/18 15:00:00 32 0.24 54.40%0.12 471 1956/01/31 12:00:00 1956/02/01 08:00:00 21 0.24 54.51%0.12 472 1963/03/28 13:00:00 1963/03/29 10:00:00 22 0.24 54.63%0.12 473 1973/02/06 05:00:00 1973/02/08 04:00:00 48 0.24 54.75%0.12 474 1981/04/18 23:00:00 1981/04/20 03:00:00 29 0.24 54.86%0.12 475 1985/01/28 17:00:00 1985/01/29 22:00:00 30 0.24 54.98%0.12 476 1989/02/09 17:00:00 1989/02/11 03:00:00 35 0.24 55.09%0.12 477 1989/03/02 12:00:00 1989/03/03 16:00:00 29 0.24 55.21%0.12 478 1992/03/08 02:00:00 1992/03/09 08:00:00 31 0.24 55.32%0.12 479 1994/12/25 02:00:00 1994/12/26 02:00:00 25 0.24 55.44%0.12 480 1997/01/02 07:00:00 1997/01/04 08:00:00 50 0.24 55.56%0.12 481 1997/12/18 15:00:00 1997/12/19 17:00:00 27 0.24 55.67%0.12 482 2001/03/10 09:00:00 2001/03/11 18:00:00 34 0.24 55.79%0.12 483 2004/11/21 09:00:00 2004/11/22 05:00:00 21 0.24 55.90%0.12 484 1956/02/23 17:00:00 1956/02/25 08:00:00 40 0.23 56.02%0.12 485 1963/02/14 12:00:00 1963/02/15 08:00:00 21 0.23 56.13%0.12 486 1964/10/15 14:00:00 1964/10/16 09:00:00 20 0.23 56.25%0.12 487 1971/12/04 04:00:00 1971/12/05 00:00:00 21 0.23 56.37%0.12 488 1972/10/19 04:00:00 1972/10/21 01:00:00 46 0.23 56.48%0.12 489 1976/07/27 02:00:00 1976/07/27 22:00:00 21 0.23 56.60%0.12 490 1979/01/09 13:00:00 1979/01/10 10:00:00 22 0.23 56.71%0.12 491 1979/12/21 08:00:00 1979/12/22 09:00:00 26 0.23 56.83%0.12 492 1984/12/03 10:00:00 1984/12/04 07:00:00 22 0.23 56.94%0.12 493 1996/01/21 21:00:00 1996/01/23 04:00:00 32 0.23 57.06%0.12 494 2001/02/20 15:00:00 2001/02/21 17:00:00 27 0.23 57.18%0.12 495 1956/12/06 05:00:00 1956/12/07 01:00:00 21 0.22 57.29%0.12 496 1957/04/18 04:00:00 1957/04/19 00:00:00 21 0.22 57.41%0.12 497 1975/03/22 11:00:00 1975/03/23 06:00:00 20 0.22 57.52%0.12 498 1978/04/15 22:00:00 1978/04/16 17:00:00 20 0.22 57.64%0.12 499 1987/03/05 22:00:00 1987/03/07 10:00:00 37 0.22 57.75%0.12 500 1987/03/15 11:00:00 1987/03/16 06:00:00 20 0.22 57.87%0.12 501 1990/01/13 13:00:00 1990/01/15 07:00:00 43 0.22 57.99%0.12 502 1992/12/18 04:00:00 1992/12/18 23:00:00 20 0.22 58.10%0.12 503 1998/01/09 18:00:00 1998/01/11 13:00:00 44 0.22 58.22%0.12 504 1999/06/04 02:00:00 1999/06/04 20:00:00 19 0.22 58.33%0.12 505 2003/11/12 08:00:00 2003/11/13 17:00:00 34 0.22 58.45%0.12 506 2006/12/27 10:00:00 2006/12/28 05:00:00 20 0.22 58.56%0.12 507 2007/02/19 05:00:00 2007/02/20 05:00:00 25 0.22 58.68%0.11 508 1954/01/12 12:00:00 1954/01/13 16:00:00 29 0.21 58.80%0.11 509 1967/11/26 21:00:00 1967/11/27 15:00:00 19 0.21 58.91%0.11 11/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 510 1969/01/19 01:00:00 1969/01/22 17:00:00 89 0.21 59.03%0.11 511 1972/12/07 08:00:00 1972/12/09 08:00:00 49 0.21 59.14%0.11 512 1977/03/16 15:00:00 1977/03/23 07:00:00 161 0.21 59.26%0.11 513 1978/04/07 04:00:00 1978/04/09 13:00:00 58 0.21 59.38%0.11 514 1985/10/22 02:00:00 1985/10/22 20:00:00 19 0.21 59.49%0.11 515 1992/02/10 03:00:00 1992/02/11 02:00:00 24 0.21 59.61%0.11 516 1993/01/10 14:00:00 1993/01/11 08:00:00 19 0.21 59.72%0.11 517 1995/01/21 05:00:00 1995/01/21 23:00:00 19 0.21 59.84%0.11 518 1995/06/16 00:00:00 1995/06/17 14:00:00 39 0.21 59.95%0.11 519 1995/12/23 12:00:00 1995/12/24 06:00:00 19 0.21 60.07%0.11 520 1996/03/04 20:00:00 1996/03/05 20:00:00 25 0.21 60.19%0.11 521 2001/11/29 15:00:00 2001/11/30 15:00:00 25 0.21 60.30%0.11 522 2005/09/20 07:00:00 2005/09/21 01:00:00 19 0.21 60.42%0.11 523 1951/10/07 09:00:00 1951/10/09 14:00:00 54 0.2 60.53%0.11 524 1958/05/11 12:00:00 1958/05/12 08:00:00 21 0.2 60.65%0.11 525 1962/02/25 00:00:00 1962/02/27 00:00:00 49 0.2 60.76%0.11 526 1982/03/28 22:00:00 1982/03/29 21:00:00 24 0.2 60.88%0.11 527 1985/03/27 09:00:00 1985/03/29 06:00:00 46 0.2 61.00%0.11 528 1985/09/18 14:00:00 1985/09/19 08:00:00 19 0.2 61.11%0.11 529 1995/12/13 05:00:00 1995/12/14 04:00:00 24 0.2 61.23%0.11 530 1998/03/13 19:00:00 1998/03/15 14:00:00 44 0.2 61.34%0.11 531 1999/06/02 04:00:00 1999/06/02 23:00:00 20 0.2 61.46%0.11 532 2002/03/17 23:00:00 2002/03/18 21:00:00 23 0.2 61.57%0.11 533 2007/02/22 23:00:00 2007/02/23 17:00:00 19 0.2 61.69%0.11 534 1951/10/11 02:00:00 1951/10/12 09:00:00 32 0.19 61.81%0.11 535 1957/01/10 02:00:00 1957/01/11 02:00:00 25 0.19 61.92%0.11 536 1958/02/13 05:00:00 1958/02/14 00:00:00 20 0.19 62.04%0.11 537 1962/01/13 03:00:00 1962/01/13 18:00:00 16 0.19 62.15%0.11 538 1965/12/22 03:00:00 1965/12/23 02:00:00 24 0.19 62.27%0.11 539 1969/03/13 04:00:00 1969/03/13 22:00:00 19 0.19 62.38%0.11 540 1969/12/09 02:00:00 1969/12/09 19:00:00 18 0.19 62.50%0.11 541 1971/01/12 22:00:00 1971/01/13 17:00:00 20 0.19 62.62%0.11 542 1973/02/03 23:00:00 1973/02/04 16:00:00 18 0.19 62.73%0.11 543 1975/12/12 18:00:00 1975/12/13 12:00:00 19 0.19 62.85%0.11 544 1977/02/22 04:00:00 1977/02/22 23:00:00 20 0.19 62.96%0.11 545 1977/02/24 17:00:00 1977/02/25 17:00:00 25 0.19 63.08%0.11 546 1983/08/18 10:00:00 1983/08/19 05:00:00 20 0.19 63.19%0.11 547 1987/03/25 00:00:00 1987/03/26 15:00:00 40 0.19 63.31%0.11 548 1987/07/17 11:00:00 1987/07/18 06:00:00 20 0.19 63.43%0.11 549 1988/12/28 01:00:00 1988/12/29 05:00:00 29 0.19 63.54%0.11 550 1990/01/02 09:00:00 1990/01/03 03:00:00 19 0.19 63.66%0.11 551 1996/02/03 14:00:00 1996/02/04 07:00:00 18 0.19 63.77%0.11 552 2001/12/03 20:00:00 2001/12/05 13:00:00 42 0.19 63.89%0.11 553 2005/03/04 12:00:00 2005/03/05 20:00:00 33 0.19 64.00%0.11 554 2006/12/16 23:00:00 2006/12/17 22:00:00 24 0.19 64.12%0.11 555 1951/10/14 12:00:00 1951/10/16 03:00:00 40 0.18 64.24%0.11 556 1951/11/20 04:00:00 1951/11/21 14:00:00 35 0.18 64.35%0.1 12/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 557 1952/12/06 06:00:00 1952/12/06 22:00:00 17 0.18 64.47%0.1 558 1952/12/17 09:00:00 1952/12/18 08:00:00 24 0.18 64.58%0.1 559 1954/12/04 01:00:00 1954/12/04 17:00:00 17 0.18 64.70%0.1 560 1955/01/31 01:00:00 1955/02/01 00:00:00 24 0.18 64.81%0.1 561 1955/04/26 13:00:00 1955/04/27 05:00:00 17 0.18 64.93%0.1 562 1961/03/28 05:00:00 1961/03/29 08:00:00 28 0.18 65.05%0.1 563 1964/03/02 11:00:00 1964/03/03 07:00:00 21 0.18 65.16%0.1 564 1974/01/01 07:00:00 1974/01/02 00:00:00 18 0.18 65.28%0.1 565 1975/03/14 04:00:00 1975/03/14 20:00:00 17 0.18 65.39%0.1 566 1977/01/29 04:00:00 1977/01/29 19:00:00 16 0.18 65.51%0.1 567 1977/07/14 11:00:00 1977/07/16 08:00:00 46 0.18 65.63%0.1 568 1978/03/22 17:00:00 1978/03/24 08:00:00 40 0.18 65.74%0.1 569 1979/12/25 12:00:00 1979/12/26 03:00:00 16 0.18 65.86%0.1 570 1980/04/28 18:00:00 1980/04/30 03:00:00 34 0.18 65.97%0.1 571 1980/05/08 13:00:00 1980/05/11 06:00:00 66 0.18 66.09%0.1 572 1981/04/02 07:00:00 1981/04/03 03:00:00 21 0.18 66.20%0.1 573 1985/10/06 09:00:00 1985/10/08 04:00:00 44 0.18 66.32%0.1 574 1987/02/05 14:00:00 1987/02/06 05:00:00 16 0.18 66.44%0.1 575 1987/12/19 21:00:00 1987/12/20 13:00:00 17 0.18 66.55%0.1 576 1987/12/29 14:00:00 1987/12/30 23:00:00 34 0.18 66.67%0.1 577 1988/11/10 14:00:00 1988/11/12 03:00:00 38 0.18 66.78%0.1 578 1989/01/07 18:00:00 1989/01/08 10:00:00 17 0.18 66.90%0.1 579 1989/01/23 22:00:00 1989/01/24 13:00:00 16 0.18 67.01%0.1 580 1991/12/18 06:00:00 1991/12/20 05:00:00 48 0.18 67.13%0.1 581 1993/12/14 19:00:00 1993/12/15 17:00:00 23 0.18 67.25%0.1 582 1995/01/16 13:00:00 1995/01/17 12:00:00 24 0.18 67.36%0.1 583 1998/11/28 09:00:00 1998/11/29 18:00:00 34 0.18 67.48%0.1 584 1999/09/18 19:00:00 1999/09/19 10:00:00 16 0.18 67.59%0.1 585 2000/11/10 10:00:00 2000/11/12 05:00:00 44 0.18 67.71%0.1 586 2000/11/30 11:00:00 2000/12/01 03:00:00 17 0.18 67.82%0.1 587 2006/03/03 17:00:00 2006/03/04 09:00:00 17 0.18 67.94%0.1 588 2007/04/23 01:00:00 2007/04/23 19:00:00 19 0.18 68.06%0.1 589 1953/01/06 20:00:00 1953/01/08 16:00:00 45 0.17 68.17%0.1 590 1953/04/20 13:00:00 1953/04/22 07:00:00 43 0.17 68.29%0.1 591 1957/11/14 19:00:00 1957/11/17 10:00:00 64 0.17 68.40%0.1 592 1959/10/01 05:00:00 1959/10/01 23:00:00 19 0.17 68.52%0.1 593 1960/03/28 04:00:00 1960/03/28 22:00:00 19 0.17 68.63%0.1 594 1962/03/23 01:00:00 1962/03/23 17:00:00 17 0.17 68.75%0.1 595 1962/05/14 20:00:00 1962/05/15 17:00:00 22 0.17 68.87%0.1 596 1965/09/16 20:00:00 1965/09/18 02:00:00 31 0.17 68.98%0.1 597 1974/05/19 11:00:00 1974/05/20 02:00:00 16 0.17 69.10%0.1 598 1977/07/22 14:00:00 1977/07/23 05:00:00 16 0.17 69.21%0.1 599 1977/12/23 06:00:00 1977/12/23 21:00:00 16 0.17 69.33%0.1 600 1978/04/02 21:00:00 1978/04/03 12:00:00 16 0.17 69.44%0.1 601 1979/11/12 14:00:00 1979/11/13 05:00:00 16 0.17 69.56%0.1 602 1982/04/04 14:00:00 1982/04/05 05:00:00 16 0.17 69.68%0.1 603 1983/03/28 10:00:00 1983/03/29 01:00:00 16 0.17 69.79%0.1 13/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 604 1983/10/07 11:00:00 1983/10/08 21:00:00 35 0.17 69.91%0.1 605 1983/11/18 02:00:00 1983/11/18 17:00:00 16 0.17 70.02%0.1 606 1983/12/15 16:00:00 1983/12/16 07:00:00 16 0.17 70.14%0.1 607 1983/12/19 17:00:00 1983/12/20 08:00:00 16 0.17 70.25%0.1 608 1984/11/16 17:00:00 1984/11/17 08:00:00 16 0.17 70.37%0.1 609 1987/11/18 00:00:00 1987/11/18 15:00:00 16 0.17 70.49%0.1 610 1987/12/11 08:00:00 1987/12/11 23:00:00 16 0.17 70.60%0.1 611 1988/04/18 07:00:00 1988/04/18 22:00:00 16 0.17 70.72%0.1 612 1989/12/01 13:00:00 1989/12/02 04:00:00 16 0.17 70.83%0.1 613 1991/03/13 22:00:00 1991/03/14 13:00:00 16 0.17 70.95%0.1 614 1992/03/29 15:00:00 1992/03/30 06:00:00 16 0.17 71.06%0.09 615 1992/03/31 17:00:00 1992/04/01 08:00:00 16 0.17 71.18%0.09 616 1993/02/26 21:00:00 1993/02/27 14:00:00 18 0.17 71.30%0.09 617 1996/01/16 22:00:00 1996/01/17 13:00:00 16 0.17 71.41%0.09 618 1997/02/10 23:00:00 1997/02/11 15:00:00 17 0.17 71.53%0.09 619 2002/02/17 20:00:00 2002/02/18 12:00:00 17 0.17 71.64%0.09 620 2007/10/13 09:00:00 2007/10/14 02:00:00 18 0.17 71.76%0.09 621 2008/01/23 22:00:00 2008/01/25 02:00:00 29 0.17 71.88%0.09 622 1953/11/05 11:00:00 1953/11/06 11:00:00 25 0.16 71.99%0.09 623 1955/12/04 08:00:00 1955/12/05 02:00:00 19 0.16 72.11%0.09 624 1960/04/23 10:00:00 1960/04/24 17:00:00 32 0.16 72.22%0.09 625 1964/02/29 07:00:00 1964/02/29 22:00:00 16 0.16 72.34%0.09 626 1967/12/08 02:00:00 1967/12/09 00:00:00 23 0.16 72.45%0.09 627 1971/03/13 10:00:00 1971/03/14 00:00:00 15 0.16 72.57%0.09 628 1975/04/25 10:00:00 1975/04/26 00:00:00 15 0.16 72.69%0.09 629 1977/05/12 12:00:00 1977/05/13 03:00:00 16 0.16 72.80%0.09 630 1978/12/01 21:00:00 1978/12/02 11:00:00 15 0.16 72.92%0.09 631 1980/05/02 13:00:00 1980/05/03 03:00:00 15 0.16 73.03%0.09 632 1981/03/10 20:00:00 1981/03/11 10:00:00 15 0.16 73.15%0.09 633 1981/03/14 15:00:00 1981/03/15 05:00:00 15 0.16 73.26%0.09 634 1982/02/17 04:00:00 1982/02/17 18:00:00 15 0.16 73.38%0.09 635 1983/01/17 08:00:00 1983/01/20 01:00:00 66 0.16 73.50%0.09 636 1983/05/06 11:00:00 1983/05/07 01:00:00 15 0.16 73.61%0.09 637 1984/01/15 19:00:00 1984/01/17 00:00:00 30 0.16 73.73%0.09 638 1986/02/23 09:00:00 1986/02/23 23:00:00 15 0.16 73.84%0.09 639 1986/03/01 10:00:00 1986/03/02 00:00:00 15 0.16 73.96%0.09 640 1987/10/28 03:00:00 1987/10/28 17:00:00 15 0.16 74.07%0.09 641 1994/04/24 07:00:00 1994/04/28 00:00:00 90 0.16 74.19%0.09 642 1996/04/18 04:00:00 1996/04/18 20:00:00 17 0.16 74.31%0.09 643 1996/10/01 13:00:00 1996/10/03 23:00:00 59 0.16 74.42%0.09 644 1998/12/19 21:00:00 1998/12/20 11:00:00 15 0.16 74.54%0.09 645 1999/04/01 18:00:00 1999/04/02 12:00:00 19 0.16 74.65%0.09 646 1999/04/06 23:00:00 1999/04/09 05:00:00 55 0.16 74.77%0.09 647 1952/04/08 01:00:00 1952/04/08 20:00:00 20 0.15 74.88%0.09 648 1953/12/04 12:00:00 1953/12/05 02:00:00 15 0.15 75.00%0.09 649 1955/01/02 01:00:00 1955/01/02 16:00:00 16 0.15 75.12%0.09 650 1956/05/09 13:00:00 1956/05/10 15:00:00 27 0.15 75.23%0.09 14/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 651 1957/01/20 20:00:00 1957/01/21 10:00:00 15 0.15 75.35%0.09 652 1960/03/13 07:00:00 1960/03/13 20:00:00 14 0.15 75.46%0.09 653 1960/12/03 05:00:00 1960/12/03 20:00:00 16 0.15 75.58%0.09 654 1962/05/27 14:00:00 1962/05/28 03:00:00 14 0.15 75.69%0.09 655 1963/10/16 12:00:00 1963/10/17 02:00:00 15 0.15 75.81%0.09 656 1965/04/13 02:00:00 1965/04/13 16:00:00 15 0.15 75.93%0.09 657 1969/03/09 05:00:00 1969/03/11 10:00:00 54 0.15 76.04%0.09 658 1969/04/03 08:00:00 1969/04/03 22:00:00 15 0.15 76.16%0.09 659 1970/01/10 03:00:00 1970/01/12 13:00:00 59 0.15 76.27%0.09 660 1971/04/26 07:00:00 1971/04/26 21:00:00 15 0.15 76.39%0.09 661 1971/12/07 04:00:00 1971/12/07 17:00:00 14 0.15 76.50%0.09 662 1971/12/13 08:00:00 1971/12/13 21:00:00 14 0.15 76.62%0.09 663 1973/03/26 09:00:00 1973/03/26 22:00:00 14 0.15 76.74%0.09 664 1973/12/01 21:00:00 1973/12/02 10:00:00 14 0.15 76.85%0.09 665 1976/04/04 06:00:00 1976/04/05 13:00:00 32 0.15 76.97%0.09 666 1977/07/20 12:00:00 1977/07/21 01:00:00 14 0.15 77.08%0.09 667 1977/07/27 15:00:00 1977/07/28 03:00:00 13 0.15 77.20%0.09 668 1977/09/10 00:00:00 1977/09/10 13:00:00 14 0.15 77.31%0.09 669 1980/04/01 18:00:00 1980/04/02 07:00:00 14 0.15 77.43%0.09 670 1981/01/11 09:00:00 1981/01/13 01:00:00 41 0.15 77.55%0.09 671 1981/05/01 14:00:00 1981/05/02 03:00:00 14 0.15 77.66%0.09 672 1985/02/20 22:00:00 1985/02/21 10:00:00 13 0.15 77.78%0.09 673 1987/11/14 04:00:00 1987/11/14 17:00:00 14 0.15 77.89%0.09 674 1993/11/23 02:00:00 1993/11/23 18:00:00 17 0.15 78.01%0.09 675 1999/03/15 13:00:00 1999/03/16 02:00:00 14 0.15 78.13%0.09 676 2004/04/17 16:00:00 2004/04/18 04:00:00 13 0.15 78.24%0.09 677 2004/12/08 07:00:00 2004/12/09 00:00:00 18 0.15 78.36%0.09 678 2006/12/22 13:00:00 2006/12/23 02:00:00 14 0.15 78.47%0.09 679 1957/11/02 12:00:00 1957/11/05 22:00:00 83 0.14 78.59%0.09 680 1963/10/18 04:00:00 1963/10/19 14:00:00 35 0.14 78.70%0.09 681 1963/11/06 17:00:00 1963/11/07 06:00:00 14 0.14 78.82%0.09 682 1964/02/15 10:00:00 1964/02/15 23:00:00 14 0.14 78.94%0.09 683 1965/03/07 01:00:00 1965/03/07 13:00:00 13 0.14 79.05%0.09 684 1980/03/18 19:00:00 1980/03/19 07:00:00 13 0.14 79.17%0.09 685 1981/04/26 20:00:00 1981/04/27 08:00:00 13 0.14 79.28%0.09 686 1982/04/11 22:00:00 1982/04/12 10:00:00 13 0.14 79.40%0.09 687 1995/05/01 15:00:00 1995/05/02 03:00:00 13 0.14 79.51%0.08 688 1996/02/12 16:00:00 1996/02/13 04:00:00 13 0.14 79.63%0.08 689 1998/05/06 20:00:00 1998/05/07 08:00:00 13 0.14 79.75%0.08 690 1999/01/31 13:00:00 1999/02/01 00:00:00 12 0.14 79.86%0.08 691 1999/03/11 15:00:00 1999/03/12 05:00:00 15 0.14 79.98%0.08 692 2000/09/23 02:00:00 2000/09/23 14:00:00 13 0.14 80.09%0.08 693 2001/11/12 20:00:00 2001/11/14 06:00:00 35 0.14 80.21%0.08 694 2001/12/20 20:00:00 2001/12/22 09:00:00 38 0.14 80.32%0.08 695 2003/05/03 20:00:00 2003/05/04 09:00:00 14 0.14 80.44%0.08 696 2004/02/18 19:00:00 2004/02/19 07:00:00 13 0.14 80.56%0.08 697 2004/03/26 11:00:00 2004/03/27 02:00:00 16 0.14 80.67%0.08 15/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 698 2006/03/07 03:00:00 2006/03/07 16:00:00 14 0.14 80.79%0.08 699 2006/04/14 16:00:00 2006/04/15 22:00:00 31 0.14 80.90%0.08 700 2008/02/14 17:00:00 2008/02/15 04:00:00 12 0.14 81.02%0.08 701 1951/12/02 04:00:00 1951/12/02 14:00:00 11 0.13 81.13%0.08 702 1953/11/20 09:00:00 1953/11/20 21:00:00 13 0.13 81.25%0.08 703 1955/11/21 13:00:00 1955/11/22 04:00:00 16 0.13 81.37%0.08 704 1955/12/07 02:00:00 1955/12/07 16:00:00 15 0.13 81.48%0.08 705 1956/04/27 05:00:00 1956/04/27 22:00:00 18 0.13 81.60%0.08 706 1957/10/11 13:00:00 1957/10/12 00:00:00 12 0.13 81.71%0.08 707 1958/11/11 08:00:00 1958/11/11 19:00:00 12 0.13 81.83%0.08 708 1960/03/23 12:00:00 1960/03/23 21:00:00 10 0.13 81.94%0.08 709 1963/12/10 02:00:00 1963/12/10 13:00:00 12 0.13 82.06%0.08 710 1964/03/13 02:00:00 1964/03/13 12:00:00 11 0.13 82.18%0.08 711 1966/01/20 02:00:00 1966/01/20 11:00:00 10 0.13 82.29%0.08 712 1967/03/29 09:00:00 1967/03/29 19:00:00 11 0.13 82.41%0.08 713 1968/01/28 02:00:00 1968/01/28 12:00:00 11 0.13 82.52%0.08 714 1970/04/17 01:00:00 1970/04/17 11:00:00 11 0.13 82.64%0.08 715 1970/04/27 13:00:00 1970/04/27 23:00:00 11 0.13 82.75%0.08 716 1971/05/07 22:00:00 1971/05/08 11:00:00 14 0.13 82.87%0.08 717 1972/01/09 11:00:00 1972/01/09 20:00:00 10 0.13 82.99%0.08 718 1973/01/10 03:00:00 1973/01/10 12:00:00 10 0.13 83.10%0.08 719 1976/05/07 03:00:00 1976/05/07 13:00:00 11 0.13 83.22%0.08 720 1976/06/01 11:00:00 1976/06/01 21:00:00 11 0.13 83.33%0.08 721 1976/06/10 12:00:00 1976/06/10 22:00:00 11 0.13 83.45%0.08 722 1976/06/30 19:00:00 1976/07/01 05:00:00 11 0.13 83.56%0.08 723 1976/11/27 13:00:00 1976/11/27 23:00:00 11 0.13 83.68%0.08 724 1977/01/26 03:00:00 1977/01/26 12:00:00 10 0.13 83.80%0.08 725 1977/09/05 09:00:00 1977/09/05 19:00:00 11 0.13 83.91%0.08 726 1977/10/05 21:00:00 1977/10/06 07:00:00 11 0.13 84.03%0.08 727 1978/04/25 19:00:00 1978/04/26 05:00:00 11 0.13 84.14%0.08 728 1978/09/16 14:00:00 1978/09/17 00:00:00 11 0.13 84.26%0.08 729 1979/01/25 17:00:00 1979/01/26 02:00:00 10 0.13 84.38%0.08 730 1979/05/07 13:00:00 1979/05/07 23:00:00 11 0.13 84.49%0.08 731 1979/08/19 17:00:00 1979/08/20 03:00:00 11 0.13 84.61%0.08 732 1979/10/05 01:00:00 1979/10/05 11:00:00 11 0.13 84.72%0.08 733 1979/11/05 01:00:00 1979/11/05 11:00:00 11 0.13 84.84%0.08 734 1980/01/07 10:00:00 1980/01/07 19:00:00 10 0.13 84.95%0.08 735 1981/10/11 09:00:00 1981/10/11 19:00:00 11 0.13 85.07%0.08 736 1981/11/16 15:00:00 1981/11/17 01:00:00 11 0.13 85.19%0.08 737 1981/12/21 04:00:00 1981/12/21 14:00:00 11 0.13 85.30%0.08 738 1982/05/06 16:00:00 1982/05/07 02:00:00 11 0.13 85.42%0.08 739 1982/06/17 15:00:00 1982/06/18 01:00:00 11 0.13 85.53%0.08 740 1982/10/26 09:00:00 1982/10/26 19:00:00 11 0.13 85.65%0.08 741 1983/01/05 11:00:00 1983/01/05 20:00:00 10 0.13 85.76%0.08 742 1983/08/06 07:00:00 1983/08/06 17:00:00 11 0.13 85.88%0.08 743 1984/01/04 18:00:00 1984/01/05 03:00:00 10 0.13 86.00%0.08 744 1984/02/10 07:00:00 1984/02/10 17:00:00 11 0.13 86.11%0.08 16/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 745 1984/07/15 17:00:00 1984/07/16 03:00:00 11 0.13 86.23%0.08 746 1984/11/08 09:00:00 1984/11/08 19:00:00 11 0.13 86.34%0.08 747 1985/04/21 20:00:00 1985/04/22 06:00:00 11 0.13 86.46%0.08 748 1986/04/01 11:00:00 1986/04/01 21:00:00 11 0.13 86.57%0.08 749 1986/11/05 15:00:00 1986/11/06 01:00:00 11 0.13 86.69%0.08 750 1987/01/28 10:00:00 1987/01/28 19:00:00 10 0.13 86.81%0.08 751 1987/02/03 15:00:00 1987/02/04 01:00:00 11 0.13 86.92%0.08 752 1987/08/14 12:00:00 1987/08/14 22:00:00 11 0.13 87.04%0.08 753 1987/10/23 09:00:00 1987/10/23 20:00:00 12 0.13 87.15%0.08 754 1988/03/01 00:00:00 1988/03/01 10:00:00 11 0.13 87.27%0.08 755 1988/05/29 09:00:00 1988/05/29 19:00:00 11 0.13 87.38%0.08 756 1989/01/05 21:00:00 1989/01/06 06:00:00 10 0.13 87.50%0.08 757 1989/06/04 09:00:00 1989/06/04 19:00:00 11 0.13 87.62%0.08 758 1989/11/26 13:00:00 1989/11/26 23:00:00 11 0.13 87.73%0.08 759 1990/01/22 13:00:00 1990/01/22 22:00:00 10 0.13 87.85%0.08 760 1990/05/13 19:00:00 1990/05/14 05:00:00 11 0.13 87.96%0.08 761 1990/08/15 10:00:00 1990/08/15 20:00:00 11 0.13 88.08%0.08 762 1990/12/20 10:00:00 1990/12/20 20:00:00 11 0.13 88.19%0.08 763 1991/01/04 00:00:00 1991/01/04 09:00:00 10 0.13 88.31%0.08 764 1991/03/11 05:00:00 1991/03/11 16:00:00 12 0.13 88.43%0.08 765 1991/07/31 14:00:00 1991/08/01 00:00:00 11 0.13 88.54%0.08 766 1991/12/09 13:00:00 1991/12/09 23:00:00 11 0.13 88.66%0.08 767 1992/05/06 02:00:00 1992/05/06 12:00:00 11 0.13 88.77%0.08 768 1992/05/17 20:00:00 1992/05/18 06:00:00 11 0.13 88.89%0.08 769 1992/12/04 06:00:00 1992/12/04 22:00:00 17 0.13 89.00%0.08 770 1994/02/20 14:00:00 1994/02/21 14:00:00 25 0.13 89.12%0.08 771 1994/11/16 12:00:00 1994/11/16 20:00:00 9 0.13 89.24%0.08 772 1997/04/03 20:00:00 1997/04/04 07:00:00 12 0.13 89.35%0.08 773 1998/01/03 20:00:00 1998/01/05 01:00:00 30 0.13 89.47%0.08 774 1998/04/15 19:00:00 1998/04/16 07:00:00 13 0.13 89.58%0.08 775 1999/01/20 17:00:00 1999/01/21 09:00:00 17 0.13 89.70%0.08 776 1999/02/09 22:00:00 1999/02/10 09:00:00 12 0.13 89.81%0.08 777 2001/01/08 19:00:00 2001/01/09 04:00:00 10 0.13 89.93%0.08 778 2001/04/21 11:00:00 2001/04/22 02:00:00 16 0.13 90.05%0.08 779 2001/12/14 20:00:00 2001/12/15 06:00:00 11 0.13 90.16%0.07 780 2002/12/29 20:00:00 2002/12/30 08:00:00 13 0.13 90.28%0.07 781 2003/11/16 03:00:00 2003/11/16 22:00:00 20 0.13 90.39%0.07 782 2005/03/19 00:00:00 2005/03/20 11:00:00 36 0.13 90.51%0.07 783 2006/11/27 13:00:00 2006/11/28 01:00:00 13 0.13 90.63%0.07 784 2007/09/22 13:00:00 2007/09/23 02:00:00 14 0.13 90.74%0.07 785 1968/12/20 13:00:00 1968/12/20 23:00:00 11 0.12 90.86%0.07 786 1975/02/14 06:00:00 1975/02/14 17:00:00 12 0.12 90.97%0.07 787 1993/01/02 10:00:00 1993/01/03 00:00:00 15 0.12 91.09%0.07 788 2005/12/03 03:00:00 2005/12/03 11:00:00 9 0.12 91.20%0.07 789 1965/07/30 00:00:00 1965/07/30 09:00:00 10 0.11 91.32%0.07 790 2002/04/26 12:00:00 2002/04/27 00:00:00 13 0.11 91.44%0.07 791 2003/03/22 20:00:00 2003/03/23 06:00:00 11 0.11 91.55%0.07 17/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 792 1963/04/08 08:00:00 1963/04/08 19:00:00 12 0.1 91.67%0.07 793 1963/06/11 16:00:00 1963/06/12 00:00:00 9 0.1 91.78%0.07 794 1966/02/25 03:00:00 1966/02/25 15:00:00 13 0.1 91.90%0.07 795 1966/03/02 10:00:00 1966/03/02 18:00:00 9 0.09 92.01%0.07 796 1969/11/15 21:00:00 1969/11/16 06:00:00 10 0.09 92.13%0.07 797 2001/12/30 20:00:00 2001/12/31 04:00:00 9 0.09 92.25%0.07 798 2002/04/24 16:00:00 2002/04/24 23:00:00 8 0.09 92.36%0.07 799 2003/11/01 11:00:00 2003/11/01 19:00:00 9 0.09 92.48%0.07 800 2008/01/22 07:00:00 2008/01/22 15:00:00 9 0.09 92.59%0.07 801 1955/12/01 22:00:00 1955/12/02 08:00:00 11 0.08 92.71%0.07 802 1961/03/15 14:00:00 1961/03/15 23:00:00 10 0.08 92.82%0.07 803 1972/10/17 07:00:00 1972/10/17 14:00:00 8 0.08 92.94%0.07 804 2002/09/29 20:00:00 2002/09/30 05:00:00 10 0.08 93.06%0.07 805 1963/03/15 07:00:00 1963/03/15 15:00:00 9 0.07 93.17%0.07 806 1992/10/30 21:00:00 1992/10/31 05:00:00 9 0.07 93.29%0.07 807 2000/02/16 19:00:00 2000/02/18 03:00:00 33 0.07 93.40%0.07 808 2003/11/03 20:00:00 2003/11/04 07:00:00 12 0.07 93.52%0.07 809 1961/10/08 19:00:00 1961/10/09 01:00:00 7 0.06 93.63%0.07 810 1963/04/14 19:00:00 1963/04/15 03:00:00 9 0.06 93.75%0.07 811 1964/04/01 12:00:00 1964/04/01 18:00:00 7 0.06 93.87%0.07 812 1969/05/05 14:00:00 1969/05/06 18:00:00 29 0.06 93.98%0.07 813 1998/04/13 19:00:00 1998/04/14 02:00:00 8 0.06 94.10%0.07 814 1998/08/31 23:00:00 1998/09/01 06:00:00 8 0.06 94.21%0.07 815 1998/11/11 12:00:00 1998/11/12 04:00:00 17 0.06 94.33%0.07 816 1999/07/18 13:00:00 1999/07/18 20:00:00 8 0.06 94.44%0.07 817 2004/08/30 23:00:00 2004/08/31 06:00:00 8 0.06 94.56%0.07 818 2005/01/28 18:00:00 2005/01/29 00:00:00 7 0.06 94.68%0.07 819 2006/03/17 23:00:00 2006/03/18 15:00:00 17 0.06 94.79%0.07 820 1952/09/19 17:00:00 1952/09/20 01:00:00 9 0.05 94.91%0.07 821 1953/03/20 10:00:00 1953/03/20 18:00:00 9 0.05 95.02%0.07 822 2002/04/15 12:00:00 2002/04/15 16:00:00 5 0.05 95.14%0.07 823 1969/02/15 23:00:00 1969/02/16 06:00:00 8 0.04 95.25%0.07 824 1998/09/03 06:00:00 1998/09/03 15:00:00 10 0.04 95.37%0.07 825 2000/02/28 19:00:00 2000/02/29 00:00:00 6 0.04 95.49%0.07 826 1971/11/12 12:00:00 1971/11/12 15:00:00 4 0.03 95.60%0.07 827 1974/02/19 21:00:00 1974/02/19 23:00:00 3 0.03 95.72%0.07 828 1994/11/18 08:00:00 1994/11/18 11:00:00 4 0.03 95.83%0.07 829 1995/12/16 03:00:00 1995/12/16 06:00:00 4 0.03 95.95%0.07 830 1996/01/25 16:00:00 1996/01/25 21:00:00 6 0.03 96.06%0.07 831 1999/02/07 12:00:00 1999/02/07 16:00:00 5 0.03 96.18%0.07 832 1951/11/13 04:00:00 1951/11/13 08:00:00 5 0.02 96.30%0.07 833 1956/04/11 14:00:00 1956/04/11 17:00:00 4 0.02 96.41%0.07 834 1962/03/29 11:00:00 1962/03/29 15:00:00 5 0.02 96.53%0.07 835 1964/01/18 21:00:00 1964/01/19 02:00:00 6 0.02 96.64%0.07 836 1967/12/16 16:00:00 1967/12/16 22:00:00 7 0.02 96.76%0.07 837 1968/12/11 12:00:00 1968/12/11 14:00:00 3 0.02 96.88%0.07 838 1969/02/28 23:00:00 1969/03/01 03:00:00 5 0.02 96.99%0.07 18/193/29/2023 4:01 PM Excel Engineering peakFlowStatisticsPostMitigated Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 839 1975/01/30 18:00:00 1975/01/30 21:00:00 4 0.02 97.11%0.07 840 1996/12/31 19:00:00 1996/12/31 22:00:00 4 0.02 97.22%0.07 841 2002/05/21 01:00:00 2002/05/21 04:00:00 4 0.02 97.34%0.07 842 1952/03/19 08:00:00 1952/03/19 12:00:00 5 0.01 97.45%0.07 843 1954/07/13 08:00:00 1954/07/13 09:00:00 2 0.01 97.57%0.07 844 1962/06/15 05:00:00 1962/06/15 17:00:00 13 0.01 97.69%0.07 845 1966/02/10 19:00:00 1966/02/10 22:00:00 4 0.01 97.80%0.07 846 1992/12/12 00:00:00 1992/12/12 02:00:00 3 0.01 97.92%0.07 847 1995/11/01 23:00:00 1995/11/02 00:00:00 2 0.01 98.03%0.07 848 2003/12/08 03:00:00 2003/12/08 05:00:00 3 0.01 98.15%0.07 849 1958/03/02 21:00:00 1958/03/02 22:00:00 2 0 98.26%0.07 850 1960/05/04 14:00:00 1960/05/04 15:00:00 2 0 98.38%0.07 851 1960/12/08 22:00:00 1960/12/08 23:00:00 2 0 98.50%0.07 852 1961/12/14 20:00:00 1961/12/14 21:00:00 2 0 98.61%0.07 853 1966/01/27 09:00:00 1966/01/27 18:00:00 10 0 98.73%0.07 854 1967/04/24 13:00:00 1967/04/24 14:00:00 2 0 98.84%0.07 855 1967/04/29 10:00:00 1967/04/29 11:00:00 2 0 98.96%0.07 856 1972/09/06 08:00:00 1972/09/06 10:00:00 3 0 99.07%0.07 857 1972/11/08 07:00:00 1972/11/08 08:00:00 2 0 99.19%0.07 858 1975/10/07 11:00:00 1975/10/07 12:00:00 2 0 99.31%0.07 859 1987/02/18 20:00:00 1987/02/18 21:00:00 2 0 99.42%0.07 860 1993/12/19 07:00:00 1993/12/19 09:00:00 3 0 99.54%0.07 861 1994/12/13 09:00:00 1994/12/13 11:00:00 3 0 99.65%0.07 862 2000/01/25 20:00:00 2000/01/25 23:00:00 4 0 99.77%0.07 863 2002/03/24 02:00:00 2002/03/24 03:00:00 2 0 99.88%0.07 -------------End of Data----------------- 19/193/29/2023 4:01 PM Excel Engineering Development of the Flow Duration Statistics Similar to the Peak Flow Statistics, the flow duration statistics are also developed directly from the SWMM binary output file. It should be noted right from the start that the “durations” that we are talking about in this section have nothing to do with the “storm durations” presented in the peak flow statistics section. Other than using the same sequence of letters for the word, the two concepts have nothing to do with each other and the reader is cautioned not to confuse the two. The goal of the flow duration statistics is to determine, for the flow rates that fall within the hydromorphologicaly significant range, the length of time that each of those flow rates occur. Since the amount of sediment transported by a river or stream is proportional to the velocity of the water flowing and the length of time that velocity of flow acts on the sediment, knowing the velocity and length of time for each flow rate is very useful. Methodology The methodology for determining the flow duration curves comes from a document developed by the U.S. Geological Survey (USGS). The first stop on the journey to find this document was a link to the USGS water site (http://www.usgs.gov/water/). This link is found in Appendix E (SDHMP Continuous Simulation Modeling Primer), found in the County Hydromodification Management Plan1. On this web site a search for “Flow Duration Curves” leads to USGS Publication 1542-A, Flow-duration curves, by James K. Searcy 1959 (http://pubs.er.usgs.gov/publication/wsp1542A). In this publication the development of the flow duration curves is discussed in detail. In Pub 1542-A, beginning on page 7 an example problem is used to illustrate the compilation of data used to create the flow duration plots. On page 8 a completed form 9-217-c form shows the monthly tabulation of flow rates for Bowie Creek near Hattiesburg, Miss. For each flow range the number of readings is tabulated and then the total number of each flow rate is totaled for the year. It should be noted that while this example is for a stream with a minimum flow rate of 100cfs, for the purposes of run-off studies in Southern California the minimum flow rate of zero (0) cfs is the common low flow value. Once each of the year’s data has been compiled the summary numbers from each year are transferred to form 9-217-d. On this form the total number of each flow rate is again totaled and the percentage of time exceeded calculated (as will be explained later under the discussion of our calculations). Once the data has been compiled a graph of Discharge Rate vs. Percent Time Exceeded is developed. As will be explained in the next section, the use of these curves leads to the amount of time each particular flow can be expected to occur (based on historical data). How to Read the Graphs2 Figure 1 shows a flow duration curve for a hypothetical development. The three curves show what percentage of the time a range of flow rates are exceeded for three different conditions: pre-project, post- 1 FINAL HYDROMODIFICATION MANAGEMENT PLAN, Prepared for County of San Diego, California, March 2011, by Brown and Caldwell Engineering of San Diego. (http://www.projectcleanwater.org/images/stories/Docs/LDS/HMP/0311_SD_HMP_wAppendices.pdf) 2 The graph and the explanation were taken directly from Appendix E of the Hydromodification Plan Excel Engineering project and post-project with storm water mitigation. Under pre-project conditions the minimum geomorphically significant flow rate is 0.10cfs (assumed) and as read from the graph, flows would equal or exceed this value about 0.14% of the time (or about 12 hours per year) (0.0014 x 365days x 24 hour/day). For post-project conditions, this flow rate would occur more often – about 0.38% of the time (or about 33 hours per year) (0.0038 x 365days x 24 hour/day). This increase in the duration of the geomorphically significant flow after development illustrates why duration control is closely linked to protecting creeks from accelerated erosion. Development of Flow Duration Curves The first step in developing the flow duration curves is to count the number of occurrences of each flow rate. This is done by first rounding every non-zero flow value to an appropriate number of decimal places (say two places). This in effect groups each flow into closely related values or “bins” as they are referred to in publication 9-217d. Then the entire runoff record is queried for each value and the number of each value counted. The next step is to enter the results of the query into a grid patterned after form 9-217d. The data is entered in ascending order starting with the lowest flow first. The grid is composed of four columns. They are (from left to right) Discharge Rate, Number of Periods (count), Total Periods Exceeding (the total number of periods equal to or exceeding this value), and Percent Time Exceeded. Starting at the top row (row 1), the flow rate (which is often times zero) is entered with the corresponding number of times that value was found. The next column is the total number of values greater than or equal to that flow rate. For the first flow rate point, by definition all flow rate values are greater than or equal to this value, therefore the total number of runoff records of the rainfall record is entered here. The Excel Engineering final column which is the percent of time exceeded is calculated by dividing the total periods exceeded by the total number of periods in the study. For the first row this number should be 100% For the next row (row 2), the flow rate, and the flow rate count are entered. The total number of periods exceeding for row 2 is calculated by subtracting Number of Periods of row 1 from the Total Periods Exceeding of line 1. This result is entered in the Total Periods Exceeding on row 2. As was the case for line 1, the final column is calculated by dividing the total periods exceeded by the total number of periods in the study. For the second row this number should be something less than 100% and continually decrease as we move down the chart. If all the calculations are correct, then everything should zero out on the last line of the calculations. The final step in developing the flow duration curves is to make a plot of the Discharge Rate vs. the Percent Time Exceeded. For the purposes of this report, the first value corresponding to the zero flow rate is not plotted allowing the graph to be focused on the actual flow rate values. The Flow Duration Analysis The Flow Duration analysis is composed of the following series of files: 1. The Flow Duration Plot 2. Comparison of the Post-Development Flow Duration Curve to the Pre-Development Curve (Pass/Fail) 3. The calculations for the Pre-Development flow duration curve development (USGS9217d) 4. The calculations for the Post-Development flow duration curve development (USGS9217d) The Flow Duration Plot The Flow Duration Curves Plot is the plotting of both the pre-development and post-development sets of Discharge Rate vs. the Percent Time Exceeded data point pair lists. Only that portion of the flow range within the geomorphically significant range (Q10 – Qlf) is summarized. With these curves one can see a visual representation of the relative positions of the respective flow duration curves. The flow duration curves are compared in an East/West (horizontal) direction to compare post development Discharge Rates to pre-development Discharge Rates. The pre-development curve is plotted in blue, and the post- development curve is plotted in green. As long as the post development curve lies to the left of the pre- development curve (mostly3), the project meets the peak flow hydromodification requirements. Pass/Fail comparison of the curves The next two sets of data are the point by point comparison of the post-development curve and the pre- development curve. The Pass/Fail table is helpful in determining compliance since the plotted lines can be difficult to see at the scales suitable for use in a report. Each point on the post- development curve has a corresponding “Y” value (Flow Rate), and “X” value (% Time Exceeded). For each point on the post development curve, the “Y” value is used to interpolate the corresponding Percent Time Exceeded 3 See hydromodification limits for exceedance of pre-development values Excel Engineering (X) value from the pre-development curve. Then the Post-Development Percent Time Exceeded value is compared to the Pre-Development Percent Time Exceeded value. Based on the relative values of each point, pass/fail criteria are determined point by point. For each set of data, the upper right hand header value shows the name of the file being displayed (ex. flowDurationPassFailMitigated.TXT). The first line of the file shows the name of the SWMM output file (*.out). The next line shows the time stamp of the SWMM file that is being analyzed. The time stamps of all of the report files should be within a minute or two of each other, otherwise there may have been confusion with the files. Each report run creates and prints all of the files and reports at one time so all the time stamps should be very close. The first column is the zero based number of the point. The next two columns show the post development “X” and “Y” values. The next column shows the value interpolated between the two bounding points on the pre-development curve. The next three columns show the true or false values of the comparison of the two “X” values. The last column shows the resultant pass or fail status of the point. There are three ways a point can pass. They are: 1. Qpost being outside of the geomorphically significant range Qlf to Q10 2. Qpost being less than Q pre 3. Qpost being less than 110% of the value of Qpre if the point is between Qlf and Q10 There are two ways that a point can fail. They are: 1. Qpost being greater than 110% of Qpre if the point is between Qlf and Q10 2. If more than 10% of the points are between 100% and 110% of Qpre for the points between Qlf and Q10 A quick scan down the last column will quickly tell if there are any points that fail. At the bottom of each set of data are the date stamp of the report to the left, and to the right is the page number/number of pages for the specific set of data (not the pages of the report!). Each new set of data has its own page numbering. Between the file name in the header row and the page numbering in the footer row, the engineer can readily scan the document for the data of interest. Excel Engineering Excel Engineering flowDurationPassFailMitigated Compared to: pre-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out pre-development time stamp: 1/16/2020 2:53:23 PM Compare Post-Development Curve to Pre-Development Curve Flow Control Upper Limit: 11.98 (cfs) Flow Control Lower Limit: 0.787 (cfs) post-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out post-development time stamp: 3/29/2023 1:24:33 PM Post P T # Fl ow R ate (cfs ) Post D e v % E xc eed Pre D e v % E xc eed %E x p os t < % E x p re %E x p os t > % E x p re %E x p os t > 1 10% % E x p re Pass/F a il 0 0.79 0.33 0.30 FALSE TRUE FALSE Pass: Post Duration <= 110% Pre Duration 1 0.90 0.26 0.25 FALSE TRUE FALSE Pass: Post Duration <= 110% Pre Duration 2 1.01 0.21 0.23 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 3 1.13 0.18 0.21 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 4 1.24 0.14 0.18 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 5 1.35 0.12 0.17 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 6 1.47 0.10 0.16 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 7 1.58 0.08 0.10 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 8 1.69 0.07 0.09 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 9 1.80 0.05 0.08 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 10 1.92 0.05 0.07 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 11 2.03 0.04 0.07 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 12 2.14 0.03 0.06 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 13 2.26 0.03 0.05 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 14 2.37 0.02 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 15 2.48 0.02 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 16 2.60 0.02 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 17 2.71 0.02 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 18 2.82 0.01 0.03 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 19 2.94 0.01 0.03 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 20 3.05 0.01 0.03 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 21 3.16 0.01 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 22 3.27 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 23 3.39 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 24 3.50 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 25 3.61 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 26 3.73 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 27 3.84 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 28 3.95 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 29 4.07 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 1/33/29/2023 4:01 PM Excel Engineering flowDurationPassFailMitigated Post P T # Fl ow R ate (cfs ) Post D e v % E xc eed Pre D e v % E xc eed %E x p os t < % E x p re %E x p os t > % E x p re %E x p os t > 1 10% % E x p re Pass/F a il 30 4.18 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 31 4.29 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 32 4.40 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 33 4.52 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 34 4.63 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 35 4.74 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 36 4.86 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 37 4.97 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 38 5.08 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 39 5.20 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 40 5.31 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 41 5.42 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 42 5.54 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 43 5.65 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 44 5.76 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 45 5.87 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 46 5.99 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 47 6.10 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 48 6.21 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 49 6.33 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 50 6.44 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 51 6.55 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 52 6.67 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 53 6.78 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 54 6.89 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 55 7.01 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 56 7.12 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 57 7.23 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 58 7.34 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 59 7.46 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 60 7.57 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 61 7.68 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 62 7.80 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 63 7.91 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 64 8.02 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 65 8.14 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 66 8.25 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 67 8.36 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 68 8.48 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 69 8.59 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 2/33/29/2023 4:01 PM Excel Engineering flowDurationPassFailMitigated Post P T # Fl ow R ate (cfs ) Post D e v % E xc eed Pre D e v % E xc eed %E x p os t < % E x p re %E x p os t > % E x p re %E x p os t > 1 10% % E x p re Pass/F a il 70 8.70 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 71 8.81 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 72 8.93 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 73 9.04 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 74 9.15 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 75 9.27 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 76 9.38 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 77 9.49 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 78 9.61 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 79 9.72 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 80 9.83 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 81 9.94 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 82 10.06 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 83 10.17 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 84 10.28 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 85 10.40 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 86 10.51 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 87 10.62 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 88 10.74 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 89 10.85 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 90 10.96 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 91 11.08 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 92 11.19 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 93 11.30 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 94 11.41 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 95 11.53 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 96 11.64 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 97 11.75 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 98 11.87 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 99 11.98 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 3/33/29/2023 4:01 PM Excel Engineering USGS9217dPre DISCHARGE Number of periods when discharge was equal to or greater than DISCHARGE column but less than that shown on the next line Duration Table Summary at Project Discharge Point file name: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out time stamp: 1/16/2020 2:53:23 PM Bin Num ber Dis charge R a te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Exce e ded 1 0.79 254 1521 0.302 2 0.90 127 1267 0.252 3 1.01 101 1140 0.227 4 1.13 138 1039 0.207 5 1.24 53 901 0.179 6 1.35 40 848 0.169 7 1.47 326 808 0.161 8 1.58 30 482 0.096 9 1.69 56 452 0.090 10 1.80 35 396 0.079 11 1.92 20 361 0.072 12 2.03 35 341 0.068 13 2.14 51 306 0.061 14 2.26 39 255 0.051 15 2.37 21 216 0.043 16 2.48 10 195 0.039 17 2.60 4 185 0.037 18 2.71 8 181 0.036 19 2.82 7 173 0.034 20 2.94 35 166 0.033 21 3.05 6 131 0.026 22 3.16 8 125 0.025 23 3.27 8 117 0.023 24 3.39 3 109 0.022 25 3.50 4 106 0.021 26 3.61 1 102 0.020 27 3.73 6 101 0.020 28 3.84 3 95 0.019 29 3.95 2 92 0.018 30 4.07 5 90 0.018 31 4.18 1 85 0.017 32 4.29 1 84 0.017 33 4.40 1 83 0.016 34 4.52 4 82 0.016 35 4.63 3 78 0.016 36 4.74 7 75 0.015 37 4.86 1 68 0.014 38 4.97 10 67 0.013 39 5.08 3 57 0.011 40 5.20 4 54 0.011 41 5.31 0 50 0.010 42 5.42 1 50 0.010 43 5.54 1 49 0.010 44 5.65 5 48 0.010 45 5.76 0 43 0.009 46 5.87 1 43 0.009 47 5.99 2 42 0.008 48 6.10 0 40 0.008 49 6.21 0 40 0.008 50 6.33 1 40 0.008 51 6.44 1 39 0.008 1/23/29/2023 4:01 PM Excel Engineering USGS9217dPre Bin N um ber Dis charge Ra te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Excee ded 52 6.55 0 38 0.008 53 6.67 2 38 0.008 54 6.78 0 36 0.007 55 6.89 1 36 0.007 56 7.01 1 35 0.007 57 7.12 1 34 0.007 58 7.23 0 33 0.007 59 7.34 3 33 0.007 60 7.46 2 30 0.006 61 7.57 0 28 0.006 62 7.68 0 28 0.006 63 7.80 4 28 0.006 64 7.91 1 24 0.005 65 8.02 1 23 0.005 66 8.14 0 22 0.004 67 8.25 0 22 0.004 68 8.36 0 22 0.004 69 8.48 0 22 0.004 70 8.59 0 22 0.004 71 8.70 1 22 0.004 72 8.81 0 21 0.004 73 8.93 3 21 0.004 74 9.04 1 18 0.004 75 9.15 0 17 0.003 76 9.27 0 17 0.003 77 9.38 2 17 0.003 78 9.49 1 15 0.003 79 9.61 2 14 0.003 80 9.72 1 12 0.002 81 9.83 0 11 0.002 82 9.94 0 11 0.002 83 10.06 0 11 0.002 84 10.17 0 11 0.002 85 10.28 0 11 0.002 86 10.40 1 11 0.002 87 10.51 1 10 0.002 88 10.62 2 9 0.002 89 10.74 0 7 0.001 90 10.85 0 7 0.001 91 10.96 1 7 0.001 92 11.08 0 6 0.001 93 11.19 0 6 0.001 94 11.30 1 6 0.001 95 11.41 0 5 0.001 96 11.53 0 5 0.001 97 11.64 1 5 0.001 98 11.75 3 4 0.001 99 11.87 1 1 0.000 100 11.98 0 0 0.000 -------------End of Data----------------- 2/23/29/2023 4:01 PM Excel Engineering USGS9217dPostMitigated DISCHARGE Number of periods when discharge was equal to or greater than DISCHARGE column but less than that shown on the next line Duration Table Summary at Project Discharge Point file name: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out time stamp: 3/29/2023 1:24:33 PM Bin Num ber Dis charge R a te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Exce e ded 1 0.79 333 1650 0.328 2 0.90 262 1317 0.262 3 1.01 164 1055 0.210 4 1.13 168 891 0.177 5 1.24 122 723 0.144 6 1.35 114 601 0.119 7 1.47 82 487 0.097 8 1.58 66 405 0.081 9 1.69 63 339 0.067 10 1.80 44 276 0.055 11 1.92 26 232 0.046 12 2.03 38 206 0.041 13 2.14 25 168 0.033 14 2.26 22 143 0.028 15 2.37 18 121 0.024 16 2.48 18 103 0.020 17 2.60 9 85 0.017 18 2.71 12 76 0.015 19 2.82 13 64 0.013 20 2.94 10 51 0.010 21 3.05 7 41 0.008 22 3.16 11 34 0.007 23 3.27 0 23 0.005 24 3.39 1 23 0.005 25 3.50 1 22 0.004 26 3.61 1 21 0.004 27 3.73 2 20 0.004 28 3.84 2 18 0.004 29 3.95 1 16 0.003 30 4.07 0 15 0.003 31 4.18 1 15 0.003 32 4.29 2 14 0.003 33 4.40 0 12 0.002 34 4.52 0 12 0.002 35 4.63 1 12 0.002 36 4.74 0 11 0.002 37 4.86 0 11 0.002 38 4.97 0 11 0.002 39 5.08 2 11 0.002 40 5.20 1 9 0.002 41 5.31 1 8 0.002 42 5.42 0 7 0.001 43 5.54 1 7 0.001 44 5.65 0 6 0.001 45 5.76 0 6 0.001 46 5.87 0 6 0.001 47 5.99 1 6 0.001 48 6.10 0 5 0.001 49 6.21 0 5 0.001 50 6.33 0 5 0.001 51 6.44 1 5 0.001 1/23/29/2023 4:01 PM Excel Engineering USGS9217dPostMitigated Bin N um ber Dis charge Ra te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Excee ded 52 6.55 0 4 0.001 53 6.67 0 4 0.001 54 6.78 0 4 0.001 55 6.89 0 4 0.001 56 7.01 0 4 0.001 57 7.12 1 4 0.001 58 7.23 0 3 0.001 59 7.34 0 3 0.001 60 7.46 0 3 0.001 61 7.57 0 3 0.001 62 7.68 0 3 0.001 63 7.80 0 3 0.001 64 7.91 0 3 0.001 65 8.02 0 3 0.001 66 8.14 0 3 0.001 67 8.25 1 3 0.001 68 8.36 0 2 0.000 69 8.48 1 2 0.000 70 8.59 0 1 0.000 71 8.70 0 1 0.000 72 8.81 0 1 0.000 73 8.93 0 1 0.000 74 9.04 0 1 0.000 75 9.15 0 1 0.000 76 9.27 0 1 0.000 77 9.38 0 1 0.000 78 9.49 0 1 0.000 79 9.61 0 1 0.000 80 9.72 0 1 0.000 81 9.83 1 1 0.000 82 9.94 0 0 0.000 83 10.06 0 0 0.000 84 10.17 0 0 0.000 85 10.28 0 0 0.000 86 10.40 0 0 0.000 87 10.51 0 0 0.000 88 10.62 0 0 0.000 89 10.74 0 0 0.000 90 10.85 0 0 0.000 91 10.96 0 0 0.000 92 11.08 0 0 0.000 93 11.19 0 0 0.000 94 11.30 0 0 0.000 95 11.41 0 0 0.000 96 11.53 0 0 0.000 97 11.64 0 0 0.000 98 11.75 0 0 0.000 99 11.87 0 0 0.000 100 11.98 0 0 0.000 -------------End of Data----------------- 2/23/29/2023 4:01 PM Excel Engineering END OF STATISTICS ANALYSIS DMA EXHIBIT VILLA 67 · · · · HYDROMODIFICATION EXHIBIT VILLA 67 · · · · ENGINEER OF WORK X X X PRT ENGINEER OF WORK TABLE OF CONTENTS Certification Page Project Vicinity Map FORM E-34 Storm Water Standard Questionnaire Site Information FORM E-36 Standard Project Requirement Checklist Summary of PDP Structural BMPs Attachment 1: Backup for PDP Pollutant Control BMPs Attachment 1a: DMA Exhibit Attachment 1b: Tabular Summary of DMAs and Design Capture Volume Calculations Attachment 1c: Harvest and Use Feasibility Screening (when applicable) Attachment 1d: Categorization of Infiltration Feasibility Condition (when applicable) Attachment 1e: Pollutant Control BMP Design Worksheets / Calculations Attachment 1f: Trash Capture BMP Requirements Attachment 2: Backup for PDP Hydromodification Control Measures Attachment 2a: Hydromodification Management Exhibit Attachment 2b: Management of Critical Coarse Sediment Yield Areas Attachment 2c: Geomorphic Assessment of Receiving Channels Attachment 2d: Flow Control Facility Design Attachment 3: Structural BMP Maintenance Thresholds and Actions Attachment 4: Single Sheet BMP (SSBMP) Exhibit PROJECT VICINITY MAP [Insert City’s Storm Water Standard Questionnaire (Form E-34) here] SITE INFORMATION CHECKLIST Project Summary Information Project Name MarBrisa - Villa 67 Project ID CT 03-02 Project Address MarBrisa Cir Carlsbad, CA 92008 Assessor's Parcel Number(s) (APN(s)) 211-131-13 Project Watershed (Hydrologic Unit) Carlsbad 904.31 Parcel Area 2.02 Acres ( 87,991.2 Square Feet) Existing Impervious Area (subset of Parcel Area) 0 Acres ( 0 Square Feet) Area to be disturbed by the project (Project Area) 0.266 Acres ( 11,586.96 Square Feet) Project Proposed Impervious Area (subset of Project Area) 0.180 Acres ( 7,858 Square Feet) Project Proposed Pervious Area (subset of Project Area) 0.086 Acres ( 3,728.96 Square Feet) Note: Proposed Impervious Area + Proposed Pervious Area = Area to be Disturbed by the Project. This may be less than the Parcel Area. Description of Existing Site Condition and Drainage Patterns Current Status of the Site (select all that apply): ◻ Existing development ◻ Previously graded but not built out ◻ Agricultural or other non-impervious use ◻ Vacant, undeveloped/natural Description/Additional Information: The project area consists of a previously graded lot and pad planned for the construction of a three-story resort villa building along with hardscape walkways connecting to the existing sidewalk. Existing Land Cover Includes (select all that apply): ◻ Vegetative Cover ◻ Non-Vegetated Pervious Areas ◻ Impervious Areas Description / Additional Information: Surrounding the villa will remain as what is currently a landscape area. The villa will be constructed with roof downspouts that connect directly into an area drain system that then connects to the existing drainage system. Surface runoff will flow away from the building into area drains surrounding the villa. On the front side, water runoff will flow into the existing curb and gutter in the parking lot and continue into an existing catch basin. Underlying Soil belongs to Hydrologic Soil Group (select all that apply): NRCS Type A NRCS Type B NRCS Type C NRCS Type D Approximate Depth to Groundwater (GW): GW Depth < 5 feet 5 feet < GW Depth < 10 feet 10 feet < GW Depth < 20 feet GW Depth > 20 feet Existing Natural Hydrologic Features (select all that apply): Watercourses Seeps Springs Wetlands None Description / Additional Information: Description of Existing Site Topography and Drainage [How is storm water runoff conveyed from the site? At a minimum, this description should answer (1) whether existing drainage conveyance is natural or urban; (2) describe existing constructed storm water conveyance systems, if applicable; and (3) is runoff from offsite conveyed through the site? if so, describe]: The existing site topography is a graded flat pad located in a vacant lot in MarBrisa Carlsbad Resort located between Cannon Road and Palomar Airport Road. The villa’s roof directs stormwater directly into the area drain via 5 downspouts. Surface flow on the building’s exterior flows away from building and into 6 area drains on the exterior landscape. 5 additional area drains are located within the building’s hardscape. All other flow follows the current drainage pattern into the two existing catch basins with one located in the northwestern corner and one in the parking lot directly in front of the villa. The area drains connect into the existing stormwater drainage system at the locations of these catch basins. Ultimately, these pipe outfall along the western perimeter of the resort into IMP-I and IMP-2 basins which were sized in anticipation to receive drainage from Villa 67. No runoff from offsite is conveyed though the project site. Description of Proposed Site Development and Drainage Patterns Project Description / Proposed Land Use and/or Activities: The project proposes the addition of a lodging villa with a footprint of approximately 7,500 square feet. This villa is a part of a series of construction within MarBrisa Carlsbad Ranch, which consists of multiple resort amenities such as lodging, restaurants, pools, and parking. List/describe proposed impervious features of the project (e.g., buildings, roadways, parking lots, courtyards, athletic courts, other impervious features): The proposed impervious features of the project include the building roof area and the hardscape walkways. List/describe proposed pervious features of the project (e.g., landscape areas): The pervious areas of the site include the current landscape. Does the project include grading and changes to site topography? ◻ Yes ◻ No Description / Additional Information: The existing site topography is already a graded flat pad. Site topography will change slightly. Grading as necessary to direct flows away from building and toward area drains. Does the project include changes to site drainage (e.g., installation of new storm water conveyance systems)? ◻ Yes ◻ No Description / Additional Information: New area drains to be installed but will tie-in to the existing storm water conveyance system. Identify whether any of the following features, activities, and/or pollutant source areas will be present (select all that apply): ◻ On-site storm drain inlets ◻ Interior floor drains and elevator shaft sump pumps ◻ Interior parking garages ◻ Need for future indoor & structural pest control ◻ Landscape/Outdoor Pesticide Use ◻ Pools, spas, ponds, decorative fountains, and other water features ◻ Food service ◻ Refuse areas ◻ Industrial processes ◻ Outdoor storage of equipment or materials ◻ Vehicle and Equipment Cleaning ◻ Vehicle/Equipment Repair and Maintenance ◻ Fuel Dispensing Areas ◻ Loading Docks ◻ Fire Sprinkler Test Water ◻ Miscellaneous Drain or Wash Water ◻ Plazas, sidewalks, and parking lots Identification of Receiving Water Pollutants of Concern Describe path of storm water from the project site to the Pacific Ocean (or bay, lagoon, lake or reservoir, as applicable): The project is located in Carlsbad Hydrologic Unit (904.31). The project discharges directly to an unlined drainage channel that parallels the western and southwestern side of the project site. The flow path follows a natural water course to the Pacific Ocean less than 2 miles from the site. The natural water course is Agua Hedionda and is listed on the 303(d) list as having the impairments to water quality listed below. List any 303(d) impaired water bodies within the path of storm water from the project site to the Pacific Ocean (or bay, lagoon, lake or reservoir, as applicable), identify the pollutant(s)/stressor(s) causing impairment, and identify any TMDLs for the impaired water bodies: 303(d) Impaired Water Body Pollutant(s)lStressor(s) TMDLs Agua Hedionda Creek Required Identification of Project Site Pollutants Identify pollutants anticipated from the project site based on all proposed use(s) of the site (see Table B.6-1 below): Pollutant Not Applicable to the Project Site Anticipated from the Project Site Also a Receiving Water Pollutant of Concern Sediment Nutrients Heavy Metals Organic Compounds Trash & Debris Oxygen Demanding Substances Oil & Grease Bacteria & Viruses Pesticides TABLE B.6-1. Anticipated and Potential Pollutants Generated by Land Use Type Priority Project Categories General Pollutant Categories Sediment Nutrients Heavy Metals Organic Compounds Trash & Debris Oxygen Demanding Substances Oil & Grease Bacteria & Viruses Pesticides Detached Residential Development Attached Residential Development Commercial Development >one acre Heavy Industry Automotive Repair Shops Restaurants Hillside Development >5,000 ft2 Parking Lots Retail Gasoline Outlets Streets, Highways & Freeways X = anticipated P = potential (1) A potential pollutant if landscaping exists onsite. (2) A potential pollutant if the project includes uncovered parking areas. (3) A potential pollutant if land use involves food or animal waste products. (4) Including petroleum hydrocarbons. (5) Including solvents. Hydromodification Management Requirements Do hydromodification management requirements apply (see Section 1.6 of the BMP Design Manual)?   Yes, hydromodification management flow control structural BMPs required.   No, the project will discharge runoff directly to existing underground storm drains discharging directly to water storage reservoirs, lakes, enclosed embayments, or the Pacific Ocean.   No, the project will discharge runoff directly to conveyance channels whose bed and bank are concrete-lined all the way from the point of discharge to water storage reservoirs, lakes, enclosed embayments, or the Pacific Ocean.   No, the project will discharge runoff directly to an area identified as appropriate for an exemption by the WMAA for the watershed in which the project resides. Description / Additional Information (to be provided if a 'No' answer has been selected above): Critical Coarse Sediment Yield Areas* *This Section only required if hydromodification management requirements apply Based on the maps provided within the WMAA, do potential critical coarse sediment yield areas exist within the project drainage boundaries?   Yes   No, No critical coarse sediment yield areas to be protected based on WMAA maps If yes, have any of the optional analyses presented in Section 6.2 of the BMP Design Manual been performed?   6.2.1 Verification of Geomorphic Landscape Units (GLUs) Onsite   6.2.2 Downstream Systems Sensitivity to Coarse Sediment   6.2.3 Optional Additional Analysis of Potential Critical Coarse Sediment Yield Areas Onsite   No optional analyses performed, the project will avoid critical coarse sediment yield areas identified based on WMAA maps If optional analyses were performed, what is the final result?   No critical coarse sediment yield areas to be protected based on verification of GLUs onsite   Critical coarse sediment yield areas exist but additional analysis has determined that protection is not required. Documentation attached in Attachment 8 of the SWQMP.   Critical coarse sediment yield areas exist and require protection. The project will implement management measures described in Sections 6.2.4 and 6.2.5 as applicable, and the areas are identified on the SWQMP Exhibit. Discussion / Additional Information: Flow Control for Post-Project Runoff* *This Section only required if hydromodification management requirements apply List and describe point(s) of compliance (POCs) for flow control for hydromodification management (see Section 6.3.1). For each POC, provide a POC identification name or number correlating to the project's HMP Exhibit and a receiving channel identification name or number correlating to the project's HMP Exhibit. Has a geomorphic assessment been performed for the receiving channel(s)? ◻ No, the low flow threshold is 0.1Q2 (default low flow threshold) ◻ Yes, the result is the low flow threshold is 0.1Q2 ◻ Yes, the result is the low flow threshold is 0.3Q2 ◻ Yes, the result is the low flow threshold is 0.5Q2 If a geomorphic assessment has been performed, provide title, date, and preparer: Discussion / Additional Information: (optional) Other Site Requirements and Constraints When applicable, list other site requirements or constraints that will influence storm water management design, such as zoning requirements including setbacks and open space, or City codes governing minimum street width, sidewalk construction, allowable pavement types, and drainage requirements. N/A Optional Additional Information or Continuation of Previous Sections As Needed This space provided for additional information or continuation of information from previous sections as needed. [lnsert City’s Standard Project Requirement Checklist Form E-36 (here)] E-36 Page 1 of 4 Revised 02/22 Development Services Land Development Engineering 1635 Faraday Avenue 442-339-2750 www.carlsbadca.gov STANDARD PROJECT REQUIREMENT CHECKLIST E-36 Project Information Project Name: Project ID: DWG No. or Building Permit No.: Baseline BMPs for Existing and Proposed Site Features Complete the Table 1 - Site Design Requirement to document existing and proposed site features and the BMPs to be implemented for them. All BMPs must be implemented where applicable and feasible. Applicability is generally assumed if a feature exists or is proposed. BMPs must be implemented for site design features where feasible. Leaving the box for a BMP unchecked means it will not be implemented (either partially or fully) either because it is inapplicable or infeasible. Explanations must be provided in the area below. The table provides specific instructions on when explanations are required. Table 1 - Site Design Requirement A. Existing Natural Site Features (see Fact Sheet BL-1) 1. Check the boxes below for each existing feature on the site. 1. Select the BMPs to be implemented for each identified feature. Explain why any BMP not selected is infeasible in the area below. SD-G Conserve natural features SD-H Provide buffers around waterbodies Natural waterbodies Natural storage reservoirs & drainage corridors -- Natural areas, soils, & vegetation (incl. trees) -- B. BMPs for Common Impervious Outdoor Site Features (see Fact Sheet BL-2) 1. Check the boxes below for each proposed feature. 2. Select the BMPs to be implemented for each proposed feature. If neither BMP SD-B nor SD-I is selected for a feature, explain why both BMPs are infeasible in the area below. SD-B Direct runoff to pervious areas SD-I Construct surfaces from permeable materials Minimize size of impervious areas Streets and roads Check this box to confirm that all impervious areas on the site will be minimized where feasible. If this box is not checked, identify the surfaces that cannot be minimized in area below, and explain why it is Sidewalks & walkways Parking areas & lots Driveways Patios, decks, & courtyards Hardcourt recreation areas E-36 Page 2 of 4 Revised 02/22 Other: _______________ infeasible to do so. C. BMPs for Rooftop Areas: Check this box if rooftop areas are proposed and select at least one BMP below. If no BMPs are selected, explain why they are infeasible in the area below. (see Fact Sheet BL-3) SD-B Direct runoff to pervious areas SD-C Install green roofs SD-E Install rain barrels D. BMPs for Landscaped Areas: Check this box if landscaping is proposed and select the BMP below SD-K Sustainable Landscaping If SD-K is not selected, explain why it is infeasible in the area below. (see Fact Sheet BL-4) Provide discussion/justification for site design BMPs that will not be implemented (either partially or fully): Baseline BMPs for Pollutant-generating Sources All development projects must complete Table 2 - Source Control Requirement to identify applicable requirements for documenting pollutant-generating sources/ features and source control BMPs. BMPs must be implemented for source control features where feasible. Leaving the box for a BMP unchecked means it will not be implemented (either partially or fully) either because it is inapplicable or infeasible. Explanations must be provided in the area below. The table provides specific instructions on when explanations are required. Table 2 - Source Control Requirement A. Management of Storm Water Discharges 1. Identify all proposed outdoor work areas below Check here if none are proposed 2. Which BMPs will be used to prevent materials from contacting rainfall or runoff? (See Fact Sheet BL-5) Select all feasible BMPs for each work area 3. Where will runoff from the work area be routed? (See Fact Sheet BL-6) Select one or more option for each work area SC-A Overhead covering SC-B Separation flows from adjacent areas SC-C Wind protection SC-D Sanitary sewer SC-E Containment system Other Trash & Refuse Storage Materials & Equipment Storage E-36 Page 3 of 4 Revised 02/22 Loading & Unloading Fueling Maintenance & Repair Vehicle & Equipment Cleaning Other: _________________ B. Management of Storm Water Discharges (see Fact Sheet BL-7) Select one option for each feature below: • Storm drain inlets and catch basins … are not proposed will be labeled with stenciling or signage to discourage dumping (SC-F) • Interior work surfaces, floor drains & sumps … are not proposed will not discharge directly or indirectly to the MS4 or receiving waters • Drain lines (e.g. air conditioning, boiler, etc.) … are not proposed will not discharge directly or indirectly to the MS4 or receiving waters • Fire sprinkler test water … are not proposed will not discharge directly or indirectly to the MS4 or receiving waters Provide discussion/justification for source control BMPs that will not be implemented (either partially or fully): E-36 Page 4 of 4 Revised 02/22 Form Certification This E-36 Form is intended to comply with applicable requirements of the city’s BMP Design Manual. I certify that it has been completed to the best of my ability and accurately reflects the project being proposed and the applicable BMPs proposed to minimize the potentially negative impacts of this project's land development activities on water quality. I understand and acknowledge that the review of this form by City staff is confined to a review and does not relieve me as the person in charge of overseeing the selection and design of storm water BMPs for this project, of my responsibilities for project design. Preparer Signature: Date: Print preparer name: SUMMARY OF PDP STRUCTURAL BMPS PDP Structural BMPs All PDPs must implement structural BMPs for storm water pollutant control (see Chapter 5 of the BMP Design Manual). Selection of PDP structural BMPs for storm water pollutant control must be based on the selection process described in Chapter 5. PDPs subject to hydromodification management requirements must also implement structural BMPs for flow control for hydromodification management (see Chapter 6 of the BMP Design Manual). Both storm water pollutant control and flow control for hydromodification management can be achieved within the same structural BMP(s). PDP structural BMPs must be verified by the City at the completion of construction. This may include requiring the project owner or project owner's representative to certify construction of the structural BMPs (see Section 1.12 of the BMP Design Manual). PDP structural BMPs must be maintained into perpetuity, and the City must confirm the maintenance (see Section 7 of the BMP Design Manual). Use this form to provide narrative description of the general strategy for structural BMP implementation at the project site in the box below. Then complete the PDP structural BMP summary information sheet for each structural BMP within the project (copy the BMP summary information page as many times as needed to provide summary information for each individual structural BMP). Describe the general strategy for structural BMP implementation at the site. This information must describe how the steps for selecting and designing storm water pollutant control BMPs presented in Section 5.1 of the BMP Design Manual were followed, and the results (type of BMPs selected). For projects requiring hydromodification flow control BMPs, indicate whether pollutant control and flow control BMPs are integrated together or separate. Carlsbad Ranch Planning Area 5 – MarBrisa Phase II was designed with Villa 67 included in the post-project DMA calculations. Phase II proposed the need for five Integrated Management Practice (IMP) bio-retention basins. The DMA exhibit shows drainage from Villa 67 to either Outfall 1 or Outfall 2. It was calculated that the northerly half of Villa 67’s roof enters the storm drain ultimately to Outfall 1 and the southerly half of the roof enters the storm drain and ends up at Outfall 2. Furthermore, Outfall 1 outlets into IMP-1 and Outfall 2 outlets into IMP-2. These IMP basins are sized accordingly based on the respective DMA from Phase II planning. [Continue on next page as necessary.] [Continued from previous page – This page is reserved for continuation of description of general strategy for structural BMP implementation at the site.] Structural BMP Summary Information [Copy this page as needed to provide information for each individual proposed structural BMP] Structural BMP ID DWG 428-9G Sheet No. 19 Type of structural BMP: ◻ Retention by harvest and use (HU-1) ◻ Retention by infiltration basin (INF-1) ◻ Retention by bioretention (INF-2) ◻ Retention by permeable pavement (INF-3) ◻ Dry Wells (INF-4) ◻ Partial retention by biofiltration with partial retention (PR-1) ◻ Biofiltration (BF-1) ◻ Proprietary Biofiltration (BF-3) ◻ Flow-thru treatment control included as pre-treatment/forebay for an onsite retention or biofiltration BMP (provide BMP type/description and indicate which onsite retention or biofiltration BMP it serves in discussion section below) ◻ Detention pond or vault for hydromodification management ◻ Trash Capture Device ◻ Other (describe in discussion section below) Purpose: ◻ Pollutant control only ◻ Hydromodification control only ◻ Combined pollutant control and hydromodification control ◻ Pre-treatment/forebay for another structural BMP ◻ Trash Capture ◻ Other (describe in discussion section below) Discussion (as needed): IMP-I and IMP-II are existing bio-retention swales that were sized with the consideration of Villa 67 runoff included. These IMPs are designed per worksheet B.5-1 of the COC BMP Design Manual and modeled using continuous simulation modeling with SWMM. Because Villa 67 is a portion of both IMP-I and IMP-II, the calculations were updated to show that the entirety is still in compliance with DCV current standards. Structural BMP Summary Information [Copy this page as needed to provide information for each individual proposed structural BMP] Structural BMP ID No. DWG Sheet No. Type of structural BMP: ◻ Retention by harvest and use (HU-1) ◻ Retention by infiltration basin (INF-1) ◻ Retention by bioretention (INF-2 ◻ Retention by permeable pavement (INF-3) ◻ Dry Wells (INF-4) ◻ Partial retention by biofiltration with partial retention (PR-1) ◻ Biofiltration (BF-1) ◻ Proprietary Biofiltration (BF-3) ◻ Flow-thru treatment control included as pre-treatment/forebay for an onsite retention or biofiltration BMP (provide BMP type/description and indicate which onsite retention or biofiltration BMP it serves in discussion section below) ◻ Detention pond or vault for hydromodification management ◻ Trash Capture Device ◻ Other (describe in discussion section below) Purpose: ◻ Pollutant control only ◻ Hydromodification control only ◻ Combined pollutant control and hydromodification control ◻ Pre-treatment/forebay for another structural BMP ◻ Trash Capture ◻ Other (describe in discussion section below) Discussion (as needed): The landscape at Villa 67 is categorized as self-cleaning. The northerly half of the roof will enter through downspouts into the area drains to the north and tie-in to the existing storm drain system at an existing cleanout. At this cleanout, one trash screen will be installed. The southerly half of the roof will enter through downspouts into area drains to the south and tie-in to the existing storm drain system at an existing catch basin. At this catch basin, another trash screen will be installed. The installments of these trash capture devices satisfy the requirements of section 4.4 of the Carlsbad BMP Manual. ATTACHMENT 1 BACKUP FOR PDP POLLUTANT CONTROL BMPS This is the cover sheet for Attachment 1. Check which Items are Included behind this cover sheet: Attachment Sequence Contents Checklist Attachment 1a DMA Exhibit (Required) See DMA Exhibit Checklist on the back of this Attachment cover sheet. (24”x36” Exhibit typically required) ◻ Included Attachment 1b Tabular Summary of DMAs Showing DMA ID matching DMA Exhibit, DMA Area, and DMA Type (Required)* *Provide table in this Attachment OR on DMA Exhibit in Attachment 1a ◻ Included on DMA Exhibit in Attachment 1a ◻ Included as Attachment 1b, separate from DMA Exhibit Attachment 1c Form I-7, Harvest and Use Feasibility Screening Checklist (Required unless the entire project will use infiltration BMPs) Refer to Appendix B of the BMP Design Manual to complete Form I-7. ◻ Included ◻ Not included because the entire project will use infiltration BMPs Attachment 1d Infiltration Feasibility Analysis (Required unless the project will use harvest and use BMPs) Refer to Appendix D of the BMP Design Manual. ◻ Included ◻ Not included because the entire project will use harvest and use BMPs Attachment 1e Pollutant Control BMP Design Worksheets / Calculations (Required) Refer to Appendices B, E, and I of the BMP Design Manual for structural pollutant control BMP design guidelines ◻ Included Attachment 1f Trash Capture BMP Design Calculations Refer to Appendices J of the BMP Design Manual for Trash capture BMP design guidelines ◻ Included ◻ Not included because the entire project is not subject to trash capture requirements Use this checklist to ensure the required information has been included on the DMA Exhibit: The DMA Exhibit must identify: ◻ Underlying hydrologic soil group ◻ Approximate depth to groundwater ◻ Existing natural hydrologic features (watercourses, seeps, springs, wetlands) ◻ Critical coarse sediment yield areas to be protected (if present) ◻ Existing topography and impervious areas ◻ Existing and proposed site drainage network and connections to drainage offsite ◻ Proposed grading ◻ Proposed impervious features ◻ Proposed design features and surface treatments used to minimize imperviousness ◻ Drainage management area (DMA) boundaries, DMA ID numbers, and DMA areas (square footage or acreage), and DMA type (i.e., drains to BMP, self-retaining, or self-mitigating) ◻ Structural BMPs (identify location and type of BMP) ◻ Tabular DMA Summary DMA EXHIBIT VILLA 67 · · · · Appendix I: Forms and Checklists I-2 February 2016 Harvest and Use Feasibility Checklist Form I-7 1. Is there a demand for harvested water (check all that apply) at the project site that is reliably present during the wet season? Toilet and urinal flushing Landscape irrigation Other:______________ 2. If there is a demand; estimate the anticipated average wet season demand over a period of 36 hours. Guidance for planning level demand calculations for toilet/urinal flushing and landscape irrigation is provided in Section B.3.2. [Provide a summary of calculations here] 3. Calculate the DCV using worksheet B.2-1. DCV = __________ (cubic feet) 3a. Is the 36 hour demand greater than or equal to the DCV?  Yes /  No 3b. Is the 36 hour demand greater than 0.25DCV but less than the full DCV?  Yes /  No 3c. Is the 36 hour demand less than 0.25DCV?  Yes Harvest and use appears to be feasible. Conduct more detailed evaluation and sizing calculations to confirm that DCV can be used at an adequate rate to meet drawdown criteria. Harvest and use may be feasible. Conduct more detailed evaluation and sizing calculations to determine feasibility. Harvest and use may only be able to be used for a portion of the site, or (optionally) the storage may need to be upsized to meet long term capture targets while draining in longer than 36 hours. Harvest and use is considered to be infeasible. Is harvest and use feasible based on further evaluation?  Yes, refer to Appendix E to select and size harvest and use BMPs.  No, select alternate BMPs. Appendix I: Forms and Checklists I-3 February 2016 Categorization of Infiltration Feasibility Condition Form I-8 Part 1 - Full Infiltration Feasibility Screening Criteria Would infiltration of the full design volume be feasible from a physical perspective without any undesirable consequences that cannot be reasonably mitigated? Criteria Screening Question Yes No 1 Is the estimated reliable infiltration rate below proposed facility locations greater than 0.5 inches per hour? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.2 and Appendix D. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. 2 Can infiltration greater than 0.5 inches per hour be allowed without increasing risk of geotechnical hazards (slope stability, groundwater mounding, utilities, or other factors) that cannot be mitigated to an acceptable level? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.2. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. Appendix I: Forms and Checklists I-4 February 2016 Form I-8 Page 2 of 4 Criteri a Screening Question Yes No 3 Can infiltration greater than 0.5 inches per hour be allowed without increasing risk of groundwater contamination (shallow water table, storm water pollutants or other factors) that cannot be mitigated to an acceptable level? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.3. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. 4 Can infiltration greater than 0.5 inches per hour be allowed without causing potential water balance issues such as change of seasonality of ephemeral streams or increased discharge of contaminated groundwater to surface waters? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.3. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability. Part 1 Result * If all answers to rows 1 - 4 are “Yes” a full infiltration design is potentially feasible. The feasibility screening category is Full Infiltration If any answer from row 1-4 is “No”, infiltration may be possible to some extent but would not generally be feasible or desirable to achieve a “full infiltration” design. Proceed to Part 2 *To be completed using gathered site information and best professional judgment considering the definition of MEP in the MS4 Permit. Additional testing and/or studies may be required by the City to substantiate findings. Appendix I: Forms and Checklists I-5 February 2016 Form I-8 Page 3 of 4 Part 2 – Partial Infiltration vs. No Infiltration Feasibility Screening Criteria Would infiltration of water in any appreciable amount be physically feasible without any negative consequences that cannot be reasonably mitigated? Criteria Screening Question Yes No 5 Do soil and geologic conditions allow for infiltration in any appreciable rate or volume? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.2 and Appendix D. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability and why it was not feasible to mitigate low infiltration rates. 6 Can Infiltration in any appreciable quantity be allowed without increasing risk of geotechnical hazards (slope stability, groundwater mounding, utilities, or other factors) that cannot be mitigated to an acceptable level? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.2. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability and why it was not feasible to mitigate low infiltration rates. Appendix I: Forms and Checklists I-6 February 2016 Form I-8 Page 4 of 4 Criteria Screening Question Yes No 7 Can Infiltration in any appreciable quantity be allowed without posing significant risk for groundwater related concerns (shallow water table, storm water pollutants or other factors)? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.3. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability and why it was not feasible to mitigate low infiltration rates. 8 Can infiltration be allowed without violating downstream water rights? The response to this Screening Question shall be based on a comprehensive evaluation of the factors presented in Appendix C.3. Provide basis: Summarize findings of studies; provide reference to studies, calculations, maps, data sources, etc. Provide narrative discussion of study/data source applicability and why it was not feasible to mitigate low infiltration rates. Part 2 Result* If all answers from row 5-8 are yes then partial infiltration design is potentially feasible. The feasibility screening category is Partial Infiltration. If any answer from row 5-8 is no, then infiltration of any volume is considered to be infeasible within the drainage area. The feasibility screening category is No Infiltration. *To be completed using gathered site information and best professional judgment considering the definition of MEP in the MS4 Permit. Additional testing and/or studies may be required by the City to substantiate findings. Category # Description i ii Units 1 Drainage Basin ID or Name Original IMP I Original IMP II unitless 2 85th Percentile 24-hr Storm Depth 0.59 0.59 inches 3 Impervious Surfaces Not Directed to Dispersion Area (C=0.90) 190,090 103,700 sq-ft 4 Semi-Pervious Surfaces Not Serving as Dispersion Area (C=0.30) sq-ft 5 Engineered Pervious Surfaces Not Serving as Dispersion Area (C=0.10) sq-ft 6 Natural Type A Soil Not Serving as Dispersion Area (C=0.10) sq-ft 7 Natural Type B Soil Not Serving as Dispersion Area (C=0.14) 139,799 87,004 sq-ft 8 Natural Type C Soil Not Serving as Dispersion Area (C=0.23) sq-ft 9 Natural Type D Soil Not Serving as Dispersion Area (C=0.30) sq-ft 10 Does Tributary Incorporate Dispersion, Tree Wells, and/or Rain Barrels? No No yes/no 11 Impervious Surfaces Directed to Dispersion Area per SD-B (Ci=0.90) sq-ft 12 Semi-Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.30) sq-ft 13 Engineered Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.10) sq-ft 14 Natural Type A Soil Serving as Dispersion Area per SD-B (Ci=0.10) sq-ft 15 Natural Type B Soil Serving as Dispersion Area per SD-B (Ci=0.14) sq-ft 16 Natural Type C Soil Serving as Dispersion Area per SD-B (Ci=0.23) sq-ft 17 Natural Type D Soil Serving as Dispersion Area per SD-B (Ci=0.30) sq-ft 18 Number of Tree Wells Proposed per SD-A # 19 Average Mature Tree Canopy Diameter ft 20 Number of Rain Barrels Proposed per SD-E # 21 Average Rain Barrel Size gal 22 Total Tributary Area 329,889 190,704 sq-ft 23 Initial Runoff Factor for Standard Drainage Areas 0.58 0.55 unitless 24 Initial Runoff Factor for Dispersed & Dispersion Areas 0.00 0.00 unitless 25 Initial Weighted Runoff Factor 0.58 0.55 unitless 26 Initial Design Capture Volume 9,407 5,157 cubic-feet 27 Total Impervious Area Dispersed to Pervious Surface 0 0 sq-ft 28 Total Pervious Dispersion Area 0 0 sq-ft 29 Ratio of Dispersed Impervious Area to Pervious Dispersion Area n/a n/a ratio 30 Adjustment Factor for Dispersed & Dispersion Areas 1.00 1.00 ratio 31 Runoff Factor After Dispersion Techniques 0.58 0.55 unitless 32 Design Capture Volume After Dispersion Techniques 9,407 5,157 cubic-feet 33 Total Tree Well Volume Reduction 0 0 cubic-feet 34 Total Rain Barrel Volume Reduction 0 0 cubic-feet 35 Final Adjusted Runoff Factor 0.58 0.55 unitless 36 Final Effective Tributary Area 191,336 104,887 sq-ft 37 Initial Design Capture Volume Retained by Site Design Elements 0 0 cubic-feet 38 Final Design Capture Volume Tributary to BMP 9,407 5,157 cubic-feet False False Automated Worksheet B.1: Calculation of Design Capture Volume (V2.0) Dispersion Area, Tree Well & Rain Barrel Inputs (Optional) Standard Drainage Basin Inputs Results Tree & Barrel Adjustments Initial Runoff Factor Calculation Dispersion Area Adjustments No Warning Messages Category # Description i ii Units 1 Drainage Basin ID or Name Original IMP I Original IMP II sq-ft 2 Design Infiltration Rate Recommended 0.100 0.100 in/hr 3 Design Capture Volume Tributary to BMP 9,407 5,157 cubic-feet 4 Is BMP Vegetated or Unvegetated? Vegetated Vegetated unitless 5 Is BMP Impermeably Lined or Unlined? Unlined Unlined unitless 6 Does BMP Have an Underdrain? Underdrain Underdrain unitless 7 Does BMP Utilize Standard or Specialized Media? Standard Standard unitless 8 Provided Surface Area 8,177 4,900 sq-ft 9 Provided Surface Ponding Depth 6 6 inches 10 Provided Soil Media Thickness 18 18 inches 11 Provided Gravel Thickness (Total Thickness) 0 0 inches 12 Underdrain Offset 3 3 inches 13 Diameter of Underdrain or Hydromod Orifice (Select Smallest) 1.25 0.75 inches 14 Specialized Soil Media Filtration Rate in/hr 15 Specialized Soil Media Pore Space for Retention unitless 16 Specialized Soil Media Pore Space for Biofiltration unitless 17 Specialized Gravel Media Pore Space unitless 18 Volume Infiltrated Over 6 Hour Storm 409 245 cubic-feet 19 Ponding Pore Space Available for Retention 0.00 0.00 unitless 20 Soil Media Pore Space Available for Retention 0.05 0.05 unitless 21 Gravel Pore Space Available for Retention (Above Underdrain) 0.00 0.00 unitless 22 Gravel Pore Space Available for Retention (Below Underdrain) 0.40 0.40 unitless 23 Effective Retention Depth 2.10 2.10 inches 24 Fraction of DCV Retained (Independent of Drawdown Time) 0.20 0.21 ratio 25 Calculated Retention Storage Drawdown Time 21 21 hours 26 Efficacy of Retention Processes 0.44 0.46 ratio 27 Volume Retained by BMP (Considering Drawdown Time) 4,153 2,350 cubic-feet 28 Design Capture Volume Remaining for Biofiltration 5,254 2,807 cubic-feet 29 Max Hydromod Flow Rate through Underdrain 0.0535 0.0194 cfs 30 Max Soil Filtration Rate Allowed by Underdrain Orifice 0.28 0.17 in/hr 31 Soil Media Filtration Rate per Specifications 5.00 5.00 in/hr 32 Soil Media Filtration Rate to be used for Sizing 0.28 0.17 in/hr 33 Depth Biofiltered Over 6 Hour Storm 1.69 1.02 inches 34 Ponding Pore Space Available for Biofiltration 1.00 1.00 unitless 35 Soil Media Pore Space Available for Biofiltration 0.20 0.20 unitless 36 Gravel Pore Space Available for Biofiltration (Above Underdrain) 0.40 0.40 unitless 37 Effective Depth of Biofiltration Storage 8.40 8.40 inches 38 Drawdown Time for Surface Ponding 16 22 hours 39 Drawdown Time for Effective Biofiltration Depth 22 31 hours 40 Total Depth Biofiltered 10.09 9.42 inches 41 Option 1 - Biofilter 1.50 DCV: Target Volume 7,881 4,211 cubic-feet 42 Option 1 - Provided Biofiltration Volume 6,879 3,848 cubic-feet 43 Option 2 - Store 0.75 DCV: Target Volume 3,941 2,105 cubic-feet 44 Option 2 - Provided Storage Volume 3,941 2,105 cubic-feet 45 Portion of Biofiltration Performance Standard Satisfied 1.00 1.00 ratio 46 Do Site Design Elements and BMPs Satisfy Annual Retention Requirements? Yes Yes yes/no 47 Overall Portion of Performance Standard Satisfied (BMP Efficacy Factor) 1.00 1.00 ratio 48 Deficit of Effectively Treated Stormwater 0 0 cubic-feet Retention Calculations Automated Worksheet B.3: BMP Performance (V2.0) False False BMP Inputs Biofiltration Calculations False False False False Result False False No Warning Messages Category # Description i ii Units 1 Drainage Basin ID or Name Updated IMP I Updated IMP II unitless 2 85th Percentile 24-hr Storm Depth 0.59 0.59 inches 3 Impervious Surfaces Not Directed to Dispersion Area (C=0.90) 189,955 104,135 sq-ft 4 Semi-Pervious Surfaces Not Serving as Dispersion Area (C=0.30) sq-ft 5 Engineered Pervious Surfaces Not Serving as Dispersion Area (C=0.10) sq-ft 6 Natural Type A Soil Not Serving as Dispersion Area (C=0.10) sq-ft 7 Natural Type B Soil Not Serving as Dispersion Area (C=0.14) 138,234 88,569 sq-ft 8 Natural Type C Soil Not Serving as Dispersion Area (C=0.23) sq-ft 9 Natural Type D Soil Not Serving as Dispersion Area (C=0.30) sq-ft 10 Does Tributary Incorporate Dispersion, Tree Wells, and/or Rain Barrels? No No yes/no 11 Impervious Surfaces Directed to Dispersion Area per SD-B (Ci=0.90) sq-ft 12 Semi-Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.30) sq-ft 13 Engineered Pervious Surfaces Serving as Dispersion Area per SD-B (Ci=0.10) sq-ft 14 Natural Type A Soil Serving as Dispersion Area per SD-B (Ci=0.10) sq-ft 15 Natural Type B Soil Serving as Dispersion Area per SD-B (Ci=0.14) sq-ft 16 Natural Type C Soil Serving as Dispersion Area per SD-B (Ci=0.23) sq-ft 17 Natural Type D Soil Serving as Dispersion Area per SD-B (Ci=0.30) sq-ft 18 Number of Tree Wells Proposed per SD-A # 19 Average Mature Tree Canopy Diameter ft 20 Number of Rain Barrels Proposed per SD-E # 21 Average Rain Barrel Size gal 22 Total Tributary Area 328,189 192,704 sq-ft 23 Initial Runoff Factor for Standard Drainage Areas 0.58 0.55 unitless 24 Initial Runoff Factor for Dispersed & Dispersion Areas 0.00 0.00 unitless 25 Initial Weighted Runoff Factor 0.58 0.55 unitless 26 Initial Design Capture Volume 9,359 5,211 cubic-feet 27 Total Impervious Area Dispersed to Pervious Surface 0 0 sq-ft 28 Total Pervious Dispersion Area 0 0 sq-ft 29 Ratio of Dispersed Impervious Area to Pervious Dispersion Area n/a n/a ratio 30 Adjustment Factor for Dispersed & Dispersion Areas 1.00 1.00 ratio 31 Runoff Factor After Dispersion Techniques 0.58 0.55 unitless 32 Design Capture Volume After Dispersion Techniques 9,359 5,211 cubic-feet 33 Total Tree Well Volume Reduction 0 0 cubic-feet 34 Total Rain Barrel Volume Reduction 0 0 cubic-feet 35 Final Adjusted Runoff Factor 0.58 0.55 unitless 36 Final Effective Tributary Area 190,350 105,987 sq-ft 37 Initial Design Capture Volume Retained by Site Design Elements 0 0 cubic-feet 38 Final Design Capture Volume Tributary to BMP 9,359 5,211 cubic-feet False False Automated Worksheet B.1: Calculation of Design Capture Volume (V2.0) Dispersion Area, Tree Well & Rain Barrel Inputs (Optional) Standard Drainage Basin Inputs Results Tree & Barrel Adjustments Initial Runoff Factor Calculation Dispersion Area Adjustments No Warning Messages Category # Description i ii Units 1 Drainage Basin ID or Name Updated IMP I Updated IMP II sq-ft 2 Design Infiltration Rate Recommended 0.100 0.100 in/hr 3 Design Capture Volume Tributary to BMP 9,359 5,211 cubic-feet 4 Is BMP Vegetated or Unvegetated? Vegetated Vegetated unitless 5 Is BMP Impermeably Lined or Unlined? Unlined Unlined unitless 6 Does BMP Have an Underdrain? Underdrain Underdrain unitless 7 Does BMP Utilize Standard or Specialized Media? Standard Standard unitless 8 Provided Surface Area 8,177 4,900 sq-ft 9 Provided Surface Ponding Depth 6 6 inches 10 Provided Soil Media Thickness 18 18 inches 11 Provided Gravel Thickness (Total Thickness) 0 0 inches 12 Underdrain Offset 3 3 inches 13 Diameter of Underdrain or Hydromod Orifice (Select Smallest) 2.00 2.00 inches 14 Specialized Soil Media Filtration Rate in/hr 15 Specialized Soil Media Pore Space for Retention unitless 16 Specialized Soil Media Pore Space for Biofiltration unitless 17 Specialized Gravel Media Pore Space unitless 18 Volume Infiltrated Over 6 Hour Storm 409 245 cubic-feet 19 Ponding Pore Space Available for Retention 0.00 0.00 unitless 20 Soil Media Pore Space Available for Retention 0.05 0.05 unitless 21 Gravel Pore Space Available for Retention (Above Underdrain) 0.00 0.00 unitless 22 Gravel Pore Space Available for Retention (Below Underdrain) 0.40 0.40 unitless 23 Effective Retention Depth 2.10 2.10 inches 24 Fraction of DCV Retained (Independent of Drawdown Time) 0.20 0.21 ratio 25 Calculated Retention Storage Drawdown Time 21 21 hours 26 Efficacy of Retention Processes 0.44 0.46 ratio 27 Volume Retained by BMP (Considering Drawdown Time) 4,132 2,375 cubic-feet 28 Design Capture Volume Remaining for Biofiltration 5,227 2,836 cubic-feet 29 Max Hydromod Flow Rate through Underdrain 0.1356 0.1356 cfs 30 Max Soil Filtration Rate Allowed by Underdrain Orifice 0.72 1.20 in/hr 31 Soil Media Filtration Rate per Specifications 5.00 5.00 in/hr 32 Soil Media Filtration Rate to be used for Sizing 0.72 1.20 in/hr 33 Depth Biofiltered Over 6 Hour Storm 4.30 7.17 inches 34 Ponding Pore Space Available for Biofiltration 1.00 1.00 unitless 35 Soil Media Pore Space Available for Biofiltration 0.20 0.20 unitless 36 Gravel Pore Space Available for Biofiltration (Above Underdrain) 0.40 0.40 unitless 37 Effective Depth of Biofiltration Storage 8.40 8.40 inches 38 Drawdown Time for Surface Ponding 7 5 hours 39 Drawdown Time for Effective Biofiltration Depth 10 6 hours 40 Total Depth Biofiltered 12.70 15.57 inches 41 Option 1 - Biofilter 1.50 DCV: Target Volume 7,841 4,255 cubic-feet 42 Option 1 - Provided Biofiltration Volume 7,841 4,255 cubic-feet 43 Option 2 - Store 0.75 DCV: Target Volume 3,921 2,127 cubic-feet 44 Option 2 - Provided Storage Volume 3,921 2,127 cubic-feet 45 Portion of Biofiltration Performance Standard Satisfied 1.00 1.00 ratio 46 Do Site Design Elements and BMPs Satisfy Annual Retention Requirements? Yes Yes yes/no 47 Overall Portion of Performance Standard Satisfied (BMP Efficacy Factor) 1.00 1.00 ratio 48 Deficit of Effectively Treated Stormwater 0 0 cubic-feet Retention Calculations Automated Worksheet B.3: BMP Performance (V2.0) False False BMP Inputs Biofiltration Calculations False False False False Result False False No Warning Messages CARLSBAD RANCH, PLANNING AREA NO.5 STORM WATER MANAGEMENT PLAN (SWMP) PREPARED FOR GRAND PACIFIC CARLSBAD, L.P. 5900 PASTEUR COURT, SUITE 200 CARLSBAD, CA 92008 (760) 431-8500 Prepared by: ROBERT D. DENTINO LAND PLANNING● ENGINEERING● GIS●SURVEYING 440 State Place Escondido, CA 92029 Ph:760-745-8118 Fax: 745-8118-1890 Preparation Date: MARBRISA DRAINAGE MANAGE AREAS (DMAs) The entire project area is divided into individual Drainage Manage Areas (DMAs). This delineate is done by following grade brakes and roof ridge lines. In general, there are 3 outfalls in the post-development for this project. Tributary area basin 1 represents the flow that drains to the OUTFALL 1 (south), Tributary area Basin 2 drains to OUTFALL 2 (Southeast), and Basin 3 drains to OUTFALL 3 (east). In post- development this three tributary areas are divided into sub-areas based on the proposed surface shape and the existing topography. These three outfalls ultimately will confluence at the down stream in an existing 5’x4’ storm drain cleanout. Basin 1 is the area that drain to Integrated Management Practice (IMP I), Basin 2 some will be treated in IMP II and the third drains to IMP III, IV and V and then to an existing stormdrain system. Drainage Management Areas Tabulation Self-treating Areas on Slope (ST) Slope 1 22,320 Slope 2 17,951 Slope 3 8,032 Slope 4 2,518 Slope 5 12,053 Slope 6 925 Slope 7 6,287 Slope 8 17,340 Slope 9 9,840 DMA NAME AREA Self-treating Areas on Landscape (ST) Pool Area 7,300 Villa 70 7,491 Villa 69 8,121 Villa 68 13,024 Villa 67 12,383 Villa 66 13,555 Villa 65 16,569 Villa 64 8,266 Villa 63 10,670 Villa 62 7,323 Villa 61 8,151 Villa 60 10,076 Villa 59 8,280 Villa 58 10,382 Villa 57 6,251 DMA NAME AREA Areas Draining to IMPs The Drainage Management Areas (DMAs) are multiplied by a sizing factor to calculate the required size of the IMP and Most of these DMAs drain to IMPs. Due to its location, more than one type of surface drain to the designated IMP. Turf or landscaping is included in determining the size of the bio-retention facility. ∆Area = (pervious area) x (runoff factor) x (sizing factor) IMP I: Basin 1 – Storm Drain system Line A – OUTFALL 1 Areas Draining to IMP I DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor Street inlet 2 4,412 A/C 1.0 4,412 Street inlet 4 6,414 A/C 1.0 6,414 Street inlet 6 10,854 A/C 1.0 10,854 Street inlet 12 8,470 A/C 1.0 8,470 Street inlet 13 4,359 A/C 1.0 4,359 Street inlet 15 5,831 A/C 1.0 5,831 Street inlet 22 10,280 A/C 1.0 10,280 Street inlet 23 16,940 A/C 1.0 16,940 Slope 1 22,320 Landscape 0.1 2,232 Villa 61 7,811 Roof 1.0 7,811 Villa 62 7,837 Roof 1.0 7,837 Villa 63 8,464 Roof 1.0 8,464 Villa 64 6,088 Roof 1.0 6,088 Villa 65 7,725 Roof 1.0 7,725 Villa 68 7,762 Roof 1.0 7,762 1/2 Villa 66 3,879 Roof 1.0 3,879 1/2 Villa 67 4,335 Roof 1.0 4,335 Gym 1,651 Roof 1.0 1,651 Restroom 2,087 Roof 1.0 2,087 Pool Area 49,367 Hardscape 1.0 49,367 Villa 69 7,762 Roof 1.0 7,762 Villa 70 7,762 Roof 1.0 7,762 Villa 61 8,151 Landscape 0.1 815 Villa 62 7,323 Landscape 0.1 732 Villa 63 10,670 Landscape 0.1 1,067 Villa 64 8,266 Landscape 0.1 827 Villa 67 13,215 Landscape 0.1 1,322 Villa 68 13,024 Landscape 0.1 1,302 Villa 69 8,121 Landscape 0.1 812 Villa 70 7,491 Landscape 0.1 749 Pool Area 7,300 Landscape 0.1 730 Slope 8 17,349 Landscape 0.1 1,735 Villa 65 16,569 Landscape 0.1 1,657 - Minimun - IMP Area - Sizing Factor sq.ft. 204,070 0.04 8,163 8,700 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP II DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor Street inlet 51 7,248 A/C 1.0 7,248 Street inlet 53 6,352 A/C 1.0 6,352 Street inlet 57 7,352 A/C 1.0 7,352 Street inlet 60 5,288 A/C 1.0 5,288 Street inlet 63 12,031 A/C 1.0 12,031 Street inlet 65 5,244 A/C 1.0 5,244 Street inlet 67 7,985 A/C 1.0 7,985 Street inlet 70 8,437 A/C 1.0 8,437 Villa 58 7,762 Roof 1.0 7,762 Villa 59 8,214 Roof 1.0 8,214 Villa 60 8,443 Roof 1.0 8,443 1/2 Villa 66 3,883 Roof 1.0 3,883 1/2 Villa 67 3,430 Roof 1.0 3,430 Villa 58 10,382 Landscape 0.1 1,038 Villa 59 8,280 Landscape 0.1 828 Street Access 12,031 AC/Sidewalk 1.0 12,031 Villa 60 10,076 Landscape 0.1 1,008 Slope 2 17,951 Landscape 0.1 1,795 Slope 5 12,053 Landscape 0.1 1,205 Slope 6 925 Landscape 0.1 93 Slope 7 6,287 Landscape 0.1 629 Slope 9 9,840 Landscape 0.1 984 Minimun Sales Bldg 5,474 hardscape 1.0 5,474 IMP Area Villa 67 5,736 Landscape 0.1 574 Sizing Factor sq.ft. 117,327 0.04 4,693 4,900 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP III DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor 1/2 Bldg 57 5,442 Roof 1.0 5,442 Minimun IMP Area Sizing Factor sq.ft. 5,442 0.04 218 4,900 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP IV DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor 1/2 Bldg 57 5,442 Roof 1.0 5,442 Minimun IMP Area Sizing Factor sq.ft. 5,442 0.04 218 4,900 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP V DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor Driveway 13,668 Roof 1.0 13,668 Slope 4 2,518 Landscape 0.1 252 Minimun IMP Area Sizing Factor sq.ft. 13,920 0.04 557 sq.ft. B Bio-retention IMP Proposed Area Chapter 4: Source Control and Site Design Requirements for All Development Projects 4-15 Sept. 2021 4.4 Trash Capture BMPs 4.4.1 Introduction The California Regional Water Quality Control Board, San Diego Region (San Diego Water Board) issued Order No. R9-2017-0077 (San Diego Water Board 2017) to owners and operators of Phase 1 municipal separate storm sewer systems (MS4s) in the City. The order requires MS4 permittees to submit reports pertaining to the control of trash in discharges to ocean waters, inland surface waters, enclosed bays and estuaries in the City. City of Carlsbad has selected the Track 2 Implementation Plan which uses an approach that prioritizes existing controls and implementation of Full Capture Systems (FCS), multi-benefit projects, other treatment controls, and/or institutional controls within city jurisdiction based on need and analysis of ongoing programs. The City’s Track 2 Implementation Plan can be found on the city’s website. 4.4.2 Requirements All areas within the project’s property boundary are subject trash capture including DMAs excluded from DCV calculations as discussed in Section 5.2. If the city’s right-of-way adjacent to a self- mitigating area, as demonstrated in Figure 5-3, contains sufficient BMPs for trash capture per the city’s Trash Capture Program, the self-mitigating area may be excluded from trash capture requirements subject to discretion of the City Engineer. For specific design requirements and documentation, see Appendix J. 4.4.2.1 Applicable Projects The Trash Capture MS4 permit amendments provide the framework for implementation of Priority Land Use (PLU) based compliance approaches into NPDES storm water discharge permits, waste discharge requirements, and waivers of waste discharge requirements for the City. The PLU-based approach is designed to target areas with high trash generation rates. All development projects within a PLU is subject to the Trash Capture requirements. PLUs include land areas designated as high density residential, industrial, commercial, mixed urban, and public transportation stations. Table 4-1 categorizes the City’s land use designations that are subject to the Trash Capture requirements. To determine whether the project is located in a PLU and is subject to Trash Capture BMPs, see the city’s Planning division webpage for the city’s Land Use Map. Chapter 4: Source Control and Site Design Requirements for All Development Projects 4-16 Sept. 2021 Table 4-1 City of Carlsbad Trash Capture Land Use Categories Land Use Categories Priority Land Use Categories R-23 (15-23 du/ac) R-30 (23-30 du/ac) High Density Residential PI (Planned Industrial) Industrial CF (Community Facilities) GC (General Commercial) L (Local Shopping Center) R (Regional Commercial) V-B (Village-Barrio) VC (Visitor Commercial) O (Office) VC/OS (Visitor Commercial/Open Space) Commercial PI/O (Planned Industrial/Office) Mixed Urban All transit stops part of development projects and major transit centers such as NCTD transit center at Shoppes of Carlsbad, and Coaster Stations at Carlsbad Village and Poinsettia. It does not include roadways or transportation corridors (TC). Public Transportation Stations All PDPs are required to implement Trash Capture BMPs. 4.4.2.2 Trash Capture Sizing Criteria Development projects subject to the Trash Amendment requirements must capture all trash greater than 5 millimeters in size and at a minimum size the Trash Capture BMPs for a 1-year 1-hour storm event, or same size of the storm drain system. 4.4.3 Types of Trash Capture BMPs For an approved list of Trash Capture devices and BMPs, see the California Water Board website for the Certified Full Capture System List of Trash Treatment Control Devices and Certified Trash Full Capture Systems List of Multi-Benefit Treatment Systems. Visit: https://www.waterboards.ca.gov/water_issues/programs/stormwater/trash_implementation.html P A L O M A R A I R P O R T R D C A N N O N RD P OIN S E T T IA L N LA COSTA AV C A RL S BAD B L CAMIN O VI D A ROBLE ALGA RD F A R A D A Y AV C A R L S B A D V IL L AG E D R OLIVENHAIN RD C O L L E G E BL E L C A MI N O R E A L RANCHOSANTAFERD T A M A R A C K A V AVIARA PY M E L R O S E D R MARRONRD AVENIDA ENCINAS PASEO D E L N OR TE C O L L E GE BL P OI NSET TIA LN !!! !!! !!! !!! !!! !!! !!! !!! !! ! ! !! !! ! ! ! ! ! ! ! ! ! ! !!! !! ! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! !! !!!!!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!!!!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!! !!!!!! !!! !!! !! ! !!! ! !! !!! ! !! !!! !! ! !!! !!! ! !! ! !! !! ! !! ! ! !! !!! !!! !!! ! ! ! !!! !!! !!! !!! !!! !!! !!! !!! !!! !! ! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!! !!! !!! !!! !!! !!! !!! !! ! !! ! !!! !!! !! ! !!! ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! }}}} }} }} }} }} }} }} }} }} }} }} }} }} }}}}}} }} }} }}}}}}}}}} }} }} }} }} }} }} }} }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} }} }} }} }} }} }} }} }} }} }} }} }} }} }}}}}}}}}}}}}}}} }} }} }} }} }} }} }} }} }} }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! !!!! !!! !! ! !!!! ! !! ! ! ! ! ! ! ! ! ! ! ! ! !! !! !! ! ! !!!!!!!!!!!!!!!!! !! ! ! ! !!!!!! ! ! ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! !! ! !!!!!!!!!!!!!!!!!! ! ! ! ! !! !!! ! ! ! !!! !!!!!! ! ! !!!! ! ! !!!! !! ! ! ! ! ! ! !!!!!!!!!!!!!!!!! ! ! ! !!! ! ! !!! ! ! ! ! ! !! ! !!!!!!!!!!!!!!!!!!!!!! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! !!!!! ! !!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!! !!!!! !!! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!! !!!! !!!! ! ! ! ! ! ! ! ! !!!!!!!! ! !!!!!!!! CF L L L L O O O O OS OS P P P P P P P P P P P P P P P R-1.5 R-15 R-15 R-15 R-15 R-23 PI R-8 R-8 VC VC P P R-1.5 GC L/CF R-8 OS R-8 VC VC OS R R-8 R-23 L V-B V-B OS R-4 R-30 VC R-4 R-4 PIPI P PI R-15 R-4 L R-8 R-8 L R R-15 R-4 R-8 R-4 P R-4 R-8R-8 R-8 R-8 VC R-23 R-8 R-8 R-8 R-4 R-4 R-4 R OS P R-1.5 R-4 R-4 R-8 R-4 R-4 R-15 R-4R-8 R-8 R-15 R-23 R R-30 R-8 R-4 R-4 R-8 R-4 R-1.5 R-1.5 R-4 OS R-4 R-4 R-4 OS R-4 R-8 OS OS OS OS OS PI PI OS OS R-4 R-15 P R-8 R-4 R-4 R-4 R-8 P OS PI PI R-23 R-4 R-8 R-8 P R-15 R-4 OS OS OS OS OS R-23PIPI R-4 R-4 OS R-4 R-15 OS OS OS OS OS OS OS R-8 R-4 R-4 R-8 OS OS OS R-15 R-15 OSR-4 VCR-8 P OS PGCO OS R-15 PI/O O PI OS OS OS R-15 PI R-4 OS OS VC/OS OSR-8 R-23 R-4 R-8 R-8 CFOS OS TC OS R-15 R-23 P PI GC PI/O VC OS R-23 R-4L R-23 R-4 PI PI OSPI R-4 OS R-15/L OS R-23R-15 OS P R-1.5 OS OS R-15 OS O R-4 R-8 R-4P O O PGC R-8 R-15 R-15 R-23 VC P R-15/O V-BR-23VC R-15 P OS R-30 VC VC R-4 P OS OS VC R-15R-8 R-15 VCR-8 VC R-23 OS R-15 R-15 VC OS R-8 GC R-4OS R-8 R-8 R-23 R-23 R-8 R-4 R-8 R-8 R-8 R-8 R-4 CF CF R-23CFR-4 R-4 R-4 R-4 R-4 R-4 R-23CF R-15 R-8 CF CF R-4 O R-30 R-15R-4 R-4R-4 P OS OS R-4 R-4 R-23 O PIP PI/O R-4 R-4 VC OS O VC VC VC R VC VC GC O O P OS R-8 R-15 OS VC R-8 PI P OS OS R-4 R-4 R-15 R-8 R-8 R-8 VCR-23 R-8 R-8 R-4 R-1.5R-23 R-15/VC VC GCR-23 R-15R-15 R-8 R-8 R-8 R-8 R-8R-8 R-4 R-4 R-4 R-4 OS R-4 R-8R-8 R-8 R-4 R-8R-4 R-15 R-23 R-23O GC GC VC R-15 R-4 R-4 R-4 R-23 R-15 R-8 R-15 R-8 R-8 R-4 R-4 R-8 R-4 R-1.5 R-4 R-8 R-8 R-8 R-4 R-4 R-4 R-4 R-4 R-15 R-15 R-15R-8 CF R-4 R-15 R-8 R-8 P R-4 R-1.5 R-23 R-8 CF CF R-15 OS O R-23 L R-4R-4 O OCEANSIDE SAN MARCOS ENCINITAS }}78 MCCLELLAN-PALOMARAIRPORT Agua Hedionda Lagoon Buena VistaLagoon CalaveraLake MaerkleReservoir PacificOcean PacificOcean §¨¦5 ÃÅ87 Batiquitos Lagoon Land Use MapGENERAL PLAN General Plan Land Use R-1.5, Residential 0-1.5 du/ac R-4, Residential 0-4 du/ac R-8, Residential 4-8 du/ac R-15, Residential 8-15 du/ac R-15/L, Residential 8-15 du/ac/Local Shopping Center R-15/VC, Residential 8-15 du/ac/Visitor Commercial R-15/O, Residential 8-15 du/ac / Office R-23, Residential 15-23 du/ac R-30, Residential 23-30 du/ac V-B, Village-Barrio L, Local Shopping Center L/CF, Local Shopping Center/Community Facilities GC, General Commercial VC, Visitor Commercial VC/OS, Visitor Commercial/Open Space R, Regional Commercial PI, Planned Industrial PI/O, Planned Industrial/Office O, Office P, Public CF, Community Facilities OS, Open Space TC, Transportation Corridor \\shares\GIS_App\cbgis\products\planning\StandardMap\GPLandUse11x17_Jan2020.mxd 0 3,000Feet Updated August 2021 !!!!!!!!!!Coastal Zone Highway Major Street Planned Street Railroad Lagoon Right of Way City Limits Airport Influence Area }}}}}}Review Area 1 !!!!!!Review Area 2 [ State Water Resources Control Board CERTIFIED FULL CAPTURE SYSTEM LIST OF TRASH TREATMENT CONTROL DEVICES (Updated September 2021) Trash Provisions In accordance with the Trash Provisions,1 all trash treatment control devices (Devices) installed after December 2, 2015 shall meet the Full Capture System definition2 and be certified by the State Water Resources Control Board (State Water Board) Executive Director, or designee, prior to installation. The Devices included on this list are either: 1) new Device applications certified by the State Water Board after adoption of the Trash Provisions, or 2) grandfathered device fact sheets listed by the San Francisco Regional Water Board prior to the adoption of the Trash Provisions. The Trash Provisions require that only Certified Full Capture Devices may be installed, and that the Devices be designed according to the following criteria: 1. Appropriately sized to treat not less than the peak flowrate resulting from a one--year, one-hour storm event (design storm) or at least the same peak flows from the corresponding storm drain; 2. Do not bypass trash below the design storm under maximum operational loading conditions; and 3. Trap all particles that are 5 mm or greater up to the design flow3 or at least the same peak flows from the corresponding storm drain; and do not have a 1 Amendment to the Water Quality Control Plan for Ocean Waters of California to Control Trash and Part 1 Trash Provisions of the Water Quality Control Plan for Inland Surface Waters, Enclosed Bays, And Estuaries of California adopted by the State Water Board. 2 A Full Capture System is a treatment control, or series of treatment controls, including but not limited to, a multi-benefit project or a low-impact development control that traps all particles that are 5 mm or greater, and has a design treatment capacity that is either: of not less than the peak flow rate, Q, resulting from a one-year, one-hour storm in the subdrainage area, or b) appropriately sized to, and designed to carry at least the same flows as, the corresponding storm drain. 3 The region specific one-year, one-hour storm (or design flow) may be obtained from the National Oceanic and Atmospheric Precipitation Estimates (https://www.weather.gov/media/owp/oh/hdsc/docs/Atlas14_Volume6.pdf) CERTIFIED FULL CAPTURE SYSTEM LIST OF TRASH TREATMENT CONTROL DEVICES 8 Owner Full Capture System Trash Device Brand Name Date Application Certified or Fact Sheet Updated Date Vector Control Accessibility Verified United Stormwater, Inc.19 Connector Pipe Trash Screen USW-1 Updated 08/06/21 08/05/21 19 United Stormwater, Inc. website: http://www.unitedstormwater.com/ MACHADO LAKE TRASH TMDL PROJECT CIP NO.1-138 CIP NO.1-138 02-19-2014 MACHADOLAKETRASHTMDLPROJECT LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS 0 ACCEPTED 0 MAKE CORRECTIONS NOTED 1:3 REVISE CALCULATIONS El REJECTED REVIEW IS PERFORMED BY TtE DEPARTMENT TO ENSURE THE CONTRACTOR'S GENERAL CONFORMANCE WITH THE DESIGN CONCEPT OF THE PROJECT AND GENERAL CON. PLIANCE WITH THE SPECIFICATIONS. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR THE CORRECTNESS OF DIMENSIONS, PROPER CONSTRUCTION AND INSTALLA- TION METHODS, AND FOR FULFILUNG ALL CONTRACTUAL REQUIREMENTS. ACCEPTANCE INDICATED HEREONDOES NOT RELIEVE THE CONTRACTOR OF THESE 0131.§. CATIONS. BY DATE...........---. X Amir Zandieh 06-09-14 SS-304 SS-304 Wedge Anchor 3/8"x 3"(Typ) SS-304 Wedge Anchor 3/8"x 3"(2 each)(Typ) MACHADOLAKETRASHTMDLPROJECT 02-19-2014 CIP NO.1-138 MACHADO LAKE TRASH TMDL PROJECT CIP NO.1-138 LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS 0 ACCEPTED 0 MAKE CORRECTIONS NOTED 1:3 REVISE CALCULATIONS El REJECTED REVIEW IS PERFORMED BY TtE DEPARTMENT TO ENSURE THE CONTRACTOR'S GENERAL CONFORMANCE WITH THE DESIGN CONCEPT OF THE PROJECT AND GENERAL CON.PLIANCE WITH THE SPECIFICATIONS. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR THE CORRECTNESS OF DIMENSIONS, PROPER CONSTRUCTION AND INSTALLA-TION METHODS, AND FOR FULFILUNG ALL CONTRACTUALREQUIREMENTS. ACCEPTANCE INDICATED HEREONDOES NOT RELIEVE THE CONTRACTOR OF THESE 0131.§. CATIONS. BY DATE...........---. X Amir Zandieh 06-09-14 SS-304 SS-304 Wedge Anchor 3/8"x 3"(Typ) SS-304 Wedge Anchor 3/8"x 3"(2 each)(Typ) SS-304 MACHADO LAKE TRASH TMDL PROJECT 02-19-2014 CIP NO.1-138 MACHADO LAKE TRASH TMDL PROJECT CIP NO.1-138 LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS 0 ACCEPTED 0 MAKE CORRECTIONS NOTED 1:3 REVISE CALCULATIONS El REJECTED REVIEW IS PERFORMED BY TtE DEPARTMENT TO ENSURE THE CONTRACTOR'S GENERAL CONFORMANCE WITH THE DESIGN CONCEPT OF THE PROJECT AND GENERAL CON. PLIANCE WITH THE SPECIFICATIONS. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR THE CORRECTNESS OF DIMENSIONS, PROPER CONSTRUCTION AND INSTALLA- TION METHODS, AND FOR FULFILUNG ALL CONTRACTUAL REQUIREMENTS. ACCEPTANCE INDICATED HEREON DOES NOT RELIEVE THE CONTRACTOR OF THESE 0131.§. CATIONS. BY DATE...........---. X Amir Zandieh 06-09-14 SS-304 Wedge Anchor 3/8"x 3"(Typ) MACHADO LAKE TRASH TMDL PROJECT 02-19-2014 CIP NO.1-138 MACHADO LAKE TRASH TMDL PROJECT CIP NO.1-138 LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS 0 ACCEPTED 0 MAKE CORRECTIONS NOTED 1:3 REVISE CALCULATIONS El REJECTED REVIEW IS PERFORMED BY TtE DEPARTMENT TO ENSURE THE CONTRACTOR'S GENERAL CONFORMANCE WITH THE DESIGN CONCEPT OF THE PROJECT AND GENERAL CON. PLIANCE WITH THE SPECIFICATIONS. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR THE CORRECTNESS OF DIMENSIONS, PROPER CONSTRUCTION AND INSTALLA-TION METHODS, AND FOR FULFILUNG ALL CONTRACTUALREQUIREMENTS. ACCEPTANCE INDICATED HEREONDOES NOT RELIEVE THE CONTRACTOR OF THESE 0131.§. CATIONS. BY DATE...........---. X Amir Zandieh 06-09-14 MACHADOLAKETRASHTMDLPROJECT 02-19-2014 CIP NO.1-138 MACHADO LAKE TRASH TMDL PROJECT CIP NO.1-138 LOS ANGELES COUNTY DEPARTMENT OF PUBLIC WORKS 0 ACCEPTED 0 MAKE CORRECTIONS NOTED 1:3 REVISE CALCULATIONS El REJECTED REVIEW IS PERFORMED BY TtE DEPARTMENT TO ENSURE THE CONTRACTOR'S GENERAL CONFORMANCE WITH THE DESIGN CONCEPT OF THE PROJECT AND GENERAL CON. PLIANCE WITH THE SPECIFICATIONS. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR THE CORRECTNESS OF DIMENSIONS, PROPER CONSTRUCTION AND INSTALLA-TION METHODS, AND FOR FULFILUNG ALL CONTRACTUALREQUIREMENTS. ACCEPTANCE INDICATED HEREONDOES NOT RELIEVE THE CONTRACTOR OF THESE 0131.§. CATIONS. BY DATE...........---. X Amir Zandieh 06-09-14 SS-304 SS-304 Wedge Anchor 3/8"x3"(2 each)(Typ) PRT ENGINEER OF WORK CARLSBAD RANCH, PLANNING AREA NO.5 MARBRISA – PHASE II STORM WATER MANAGEMENT PLAN (SWMP) PREPARED FOR GRAND PACIFIC CARLSBAD, L.P. 5900 PASTEUR COURT, SUITE 200 CARLSBAD, CA 92008 (760) 431-8500 Prepared by: ROBERT D. DENTINO LAND PLANNING● ENGINEERING● GIS●SURVEYING 440 State Place Escondido, CA 92029 Ph:760-745-8118 Fax: 745-8118-1890 Preparation Date: 10-3-2011 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 TABLE OF CONTENT I. Project Description 1.1 Project Existing and Vicinity Map 1.2 Project Stormwater Quality Determination 1.3 Proposed Land use and anticipated activities that would affect Stormwater 1.4 Nearby water bodies, existing storm drain systems II. Applicable Stormwater Standards 2.1 Completed Storm Water Standard Questionnaires (SWSQ) 2.2 HMP Applicability Determination using expanded narrative from SUSMP a. HMP exemption III. Identify Pollutant of concern 3.1 Identify Watershed and Hydrologic Unit Contribution Basin and Receiving waters 3.2 Identify pollutants associated with type of Land use 3.3 Beneficial uses of receiving water 3.4 Summary of primary pollutants of concern IV. Source Control Measures 4.1 Description of site activities and potential sources of pollutants 4.2 Complete table showing sources, permanent source control, and operational source control V. Low Impact Development (LID) design strategies 5.1 Description of site activities and potential sources of pollutants 5.2 Approach to Integrated LID 5.3 Integrated LID Design VI. Operation and Maintenance 6.1 Ownership and Responsibility Attachments A. Stormwater Standards Questionnaire (SWSQ) B. Post-construction BMP Exhibit C. DMA/ TCBMP sizing Exhibit D. BMP product information and Educational Material 1 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 I. Project Description 1.1 Project Description and Vicinity Map The proposed development is located at the west of Grand Pacific Drive, 600 feet from Cannon Road and Grand Pacific Drive intersection. It is approximately 12.8 acres as a part of 56.4 acres Carlsbad Ranch, Planning Area 5 project, County of San Diego, California. At this phase II, the existing condition is a graded pad (graded from phase I). The storm water at the existing condition is collected into a depression area acting as a detention pond with 36” stand pipe and 24” storm drain outlet to a bio-filtration area at the downstream before draining to a 42” public storm drain on the south. The Proposed development will contain a combination of parking lots/areas, swimming pools, landscaping and dwelling or building areas as well as the proposed private street that will provide access throughout the entire site. Infrastructures will include new storm drain as well as water and sewer main extensions and new dry utilities runs/extensions to service the lots. Fig. 1. Vicinity Map 2 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 1.2 Project Stormwater Quality Determination Total Project Site Area ____12.8______ (Acres) Estimated amount of disturbed acreage: ____12.8___ (Acres) WDID number from the SWRCB: ________ Amount of impervious surface on your project before and after construction. A. Total size of project site: ___12.8____ (Acres) B. Total impervious area (including roof tops) before construction __0.10__ (Acres) C. Total impervious area (including roof tops) after construction ___7.5__ (Acres) Calculate percent impervious before construction: B/A = __0.80____% Calculate percent impervious after construction: C/A = __57___% 1.3 Proposed Land use and anticipated activities that would affect Stormwater Proposed Land use is multi-apartment building (time share) and recreation facility. Anticipated pollutants that may be generated from this type of land use activity are as follows: Trash and Debris – Trash (such as paper, plastic, polystyrene packing foam, and aluminum materials) and biodegradable organic matter (such as leaves, grass cuttings, and food waste) are general waste products on the landscape. The presence of trash and debris may have a significant impact on the recreational value of a water body and aquatic habitat. Excess organic matter can crate a high biochemical oxygen demand in stream and thereby lower its water quality. In addition, in areas where stagnant water exists, the presence of excess organic matter can promote septic conditions resulting in the growth of undesirable organisms and the release of odorous and hazardous compounds such as hydrogen sulfide. Oxygen-Demanding Substances – This category includes biodegradable organic material as well as chemicals that react with dissolved oxygen in water to form other compounds. Proteins, carbohydrates, and fats are examples of biodegradable organic compounds. Compounds such as ammonia and hydrogen sulfide are examples of oxygen-demanding compounds. The oxygen demand of a substance can lead to depletion of dissolved oxygen in a water body and possibly the development of septic conditions. Oil and Grease – Oil and grease are characterized as high-molecular weight organic compounds. Primary sources of oil and grease are petroleum hydrocarbon products, motor products from leaking vehicles, esters, oils, fats, waxes, and high molecular-weight fatty acids. Introduction of these pollutants to the water bodies are very possible due to the wide use and applications of some of these products in municipal, residential, commercial, industrial, and construction areas. Elevated oil and grease content can decrease the aesthetic value of the water body, as well as the water quality. Pathogens – Pathogens (bacteria and viruses) are ubiquitous microorganisms that thrive under certain environmental conditions. Their proliferation is typically caused by the transport of animal or human fecal wastes from the watershed. Water, containing excessive bacteria and viruses can alter the aquatic habitat and create a harmful environment for humans and aquatic life. Also, the decomposition of excess organic wastes causes increased growth of undesirable organisms in the water. Pesticides – Pesticides (including herbicides) are chemical compound commonly used to control nuisance growth or prevalence of organisms. Excessive or improper application of a pesticide may result in runoff containing toxic levels of its active ingredient. Nutrients – Nutrients are in organic substances, such as nitrogen and phosphorus. They commonly exist in the form of mineral salts that are either dissolved or suspended in water. Primary sources or nutrients in urban runoff are fertilizers and eroded soils. Excessive discharge of nutrients to water bodies and streams can cause excessive aquatic algae and plant growth. Such excessive production, 3 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 referred to as cultural eutrophication, may lead to excessive decay of organic matter in the water body, loss of oxygen in the water, release of toxins in sediment, and the eventual death of aquatic organisms. Metals – the primary source of metal pollution in urban runoff is typically commercially available metals and metal products. Metals of concern include cadmium, chromium, copper, lead, mercury, and zinc. Lead and chromium have been used as corrosion inhibitors in primer coatings and cooling tower systems. Metals are also raw material components in non-metal products such as fuels, adhesives, paints, and other coatings. At low concentrations naturally occurring in soil, metals may not be toxic. However, at higher concentrations, certain metals can be toxic to aquatic life. Humans can be impacted from contaminated groundwater resources, and bioaccumulation of metals in fish and shellfish. Environmental concerns, regarding the potential for release of metals to the environment, have already led to restricted metal usage in certain applications. Sediments – Sediments are soils or other surficial materials eroded and then transported or deposited by the action of wind, water, ice or gravity. Sediments can increase turbidity, clog fish gills, reduce spawning habitat, lower young aquatic organisms survival rates, smoother bottom dwelling organisms, and suppress aquatic vegetation growth. The first flush of storm water will be treated by TCBMP media filter or sand filter and the 100 year-storm event will be over flowing to the catch basins/ grated inlets. Some temporary ponding areas may occur on some spots of the parking space during big storm event to detain some of the storm water and to mimic the existing condition. All run-offs will be directed to sand filter areas before they are released to the public storm drain. 1.4 Nearby waterbodies and Impaired waterbodies This major part of the project is located in the Carlsbad Hydrologic Unit (904.00), Encinas Hydrologic watershed (904.40). Receiving water downstream is Canyon De Las Encinas and eventually to Pacific Ocean. The Carlsbad Hydrologic Unit is approximately 210 square miles in area extending from the headwaters above Lake Wohlford in the east to Pacific Ocean in the west and from Vista and Oceanside in the north to Solana Beach, Escondido, and the community of Rancho Santa Fe to the south. The impaired waterbodies is NOT listed in 303(d) 2007 list. The proposed project is designed so that it will not significantly alter the drainage pattern on the site. The surface water runoff discharge will not divert from existing conditions. This project will not present any potential threat to erosion or water quality deterioration. 4 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 II. Applicable Stormwater Standards 2.1. Stormwater Standard Questionnaires (SWSQ) To address post-development pollutants that may be generated from development projects and meet the City of Carlsbad requirements a Stormwater Standard Questioners is completed. Please refer to Attachment A for this completed form. 2.2. Hydromodification Exemption Phase II – Water quality or stormwater management and maintenance for this portion of the site was covered in the original entitled SWMP document for the entire Carlsbad ranch planning area no. 5. site. consequently, the following measures were constructed under the phase I portion of the site, which provides treatment for phase II, these include: Bio-retention, ultimate downstream storm drain outfall pipes as well as off-site detention ponds constructed per adjacent projects. Hydromodification exemption: The final exemption category focuses on small urban infill projects where the potential for future cumulative watershed impacts is minimal. Urban infill projects may be exempt from HMP criteria if: 1. the potential future development impacts within the sub-watershed, as measured from the entire sub-watershed area draining to existing conveyance system outfall, would not increase the composite impervious area percentage of the sub-watershed by more than 3%. 2. The project discharges runoff to an existing hardened or rehabilitated conveyance system (storm drain, concrete channel, or engineered vegetated channel) that extends beyond the domain analysis determined for the project site. 3. The stabilized conveyance system eventually discharges to a channel with a low susceptibility to erosion, as designed by the SCCWRP channel assessment tool. 5 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 Fig. 2. Analysis Domain Map Analysis domain: Defining the downstream extents until reaching the closest equal order tributary. As shown on the drawing stabilized conveyance extend past domain of analysis, the potential for cumulative impacts in the watershed are low, therefore the ultimate receiving channel has a low susceptibility to erosion as defined in the SCCWRP channel assessment tool. From the final exemption category above, we conclude that this project has met the HMP exemption criteria; therefore the hydromodification management plan does not apply to this project. 6 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 III. Identify Pollutant of Concern 3.1 Identify Watershed and Hydrologic Unit Contribution Basin And Receiving Waters San Juan 901 Santa Margarita 902 San Luis Rey 903 Carlsbad 904 San Dieguito 905 Penasquitos 906 San Diego 907 Sweetwater 909 Otay 910 Tijuana 911 Whitewater 719 Clark 720 West Salton 721 Anza Borrego 722 Imperial 723 http://www.waterboards.ca.gov/sandiego/water_issues/programs/basin_plan/index.shtml Receiving water downstream Number Name 904.40 Encinas http://www.waterboards.ca.gov/sandiego/water_issues/programs/basin_plan/index.shtml SURFACE WATERS Table 1. Receiving Surface waters Surface Waters (rivers, creeks, stream, etc.) Hydrologic Unit Basin Number Impairment(s) listed [303(d) listed waters or waters with established TMDLs ] Distance to Project Canyon de Las Encinas 904.40 Not listed 0.75 miles 3.2 Identify Pollutants associated with type of Land use As discuss on section 1.2 regarding proposed land use and anticipated activities that would affect Stormwater, Table 1 below shows what are the Developments that are most likely generated types of pollutants. 7 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 Table 2. Anticipated and Potential Pollutants Generated by Land Use Source: SUSMP County of San Diego – January 2011 8 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 Anticipated Potential Pollutants Using Table 1 above, the anticipated pollutants of this project are the following: ƒ Sediments ƒ Trash & Debris ƒ Nutrients ƒ Oxygen Demanding Substances ƒ Heavy metal ƒ Oil & grease ƒ Organic Compounds ƒ Pesticides ƒ Bacteria & viruses 3.3 Beneficial uses of receiving water The beneficial uses for the hydrologic unit are included in Table 2 and 3. These tables were extracted from the Water Quality Control Plan for the San Diego Basin. The following are the meaning and descriptions of the acronyms used: MUN – Municipal and Domestic Supply: Includes uses of water for community, military, or individual water supply systems including, but not limited to, drinking water supply. AGR – Agricultural Supply: Includes uses of water for farming, horticulture, or ranching including, but not limited to, irrigation, stock watering, or support of vegetation for range of grazing. IND – Industrial Services Supply: Includes uses of water for industrial activities that do not depend primarily on water quality including, but not limited to, mining, cooling water supply, hydraulic conveyance, gravel washing, fire protection, or oil well re-pressurization. REC1 – Contact Recreation: Includes uses of water for recreational activities involving body contact with water, where ingestion of water is reasonably possible. These uses include, but are not limited to swimming, wading, water-skiing, skin and SCUBA diving, surfing, white water activities, fishing, or use of natural hot springs. REC2 – Non-Contact Recreation: Includes the uses of water for recreational activities involving proximity to water, but not normally involving body contact with water, where ingestion of water is reasonably possible. These uses include, but not limited to picnicking, sunbathing, hiking, camping, boating, tide pool and marine life study, hunting, sightseeing, or aesthetic enjoyment in conjunction with the above activities. WARM – Warm Freshwater Habitat: Includes uses of water that support warm water ecosystems including, but not limited to, preservation or enhancement of aquatic habitats, vegetation, fish or wildlife, including invertebrates. WILD – Wildlife Habitat: Includes uses of water that support terrestrial ecosystems including, but not limited to, preservation and enhancement of terrestrial habitats, vegetation, wildlife, (e.g., mammals, birds, reptiles, amphibians, invertebrates), wildlife water and food sources. INLAND SURFACE WATERS Under the Clean Water Act the state is required to specify appropriate water uses to be achieved and protected. The beneficial use designation of surface waters of the state must take into consideration the use and value of water for public water supplies, protection and propagation of fish, shellfish and wildlife, recreation in and on the water, agricultural, industrial and other purposes including navigation. Inland Surface waters have the following beneficial uses as shown on Table 2 9 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 Carlsbad Hydrologic Unit (904.00), Canyon De Las Encinas (904.40) TABLE 3. Beneficial Uses for Inland Surface Waters Hydrologic Unit M I R R W W A NumberUNEEAIG NDCCRLR 12MD 904.4 * -oxxx - GROUND WATER Under the Clean Water Act the state is required to specify appropriate water uses to be achieved and protected. Ground waters in the San Diego Region can have as many as six designated beneficial uses including: (1) municipal and domestic; (2) agricultural; (3) industrial service supply; (4) industrial process supply; (5) ground water recharge; and (6) freshwater replenishment. None of these beneficial uses will be impaired or diminished due to the construction and operation of this project. Carlsbad Hydrologic Unit (904.00), Agua Hedionda Creek (904.31) TABLE 4. Beneficial Uses for Ground Water Hydrologic Unit M A I Number U G N NRD 904.40 x x x * Excepted from Municipal o Potential Beneficial Use x Existing Beneficial Use - Not Applicable 3.4 Summary of primary pollutants of concern This major part of the project is located in the Carlsbad Hydrologic Unit (904.00), Encinas Hydrologic watershed (904.40). Receiving water downstream is Canyon De Las Encinas Creek (904.40) and eventually to Pacific Ocean. The impaired water-bodies is NOT listed in 303(d) 2007 lists. Therefore, the primary pollutants of concern for the project are unknown. The secondary pollutants are sediments, Nutrients, Oxygen Demanding substances, heavy metal, trash, debris, oil and grease and pesticides. 10 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 IV. Source Control Measures 4.1 Description of site activities and potential sources of pollutants Source control BMPs are structured around the concept of “activities” as experience has shown that with few exceptions one or more of these activities will satisfactorily describe all commercial facilities. Storm Drain Signage Storm drain inlets and access points to natural drainage courses will be marked to discourage illegal dumping, with markings indicating the receiving water by name. Specifically: 1. All storm drain inlets and catch basins within the project area will have a tile or signage placed with prohibited language (such as: ‘NO DUMPING – DRAINS TO PACIFIC OCEAN SHORELINE”) 2. Signs and prohibited language and /or graphical icons, which prohibit illegal dumping, must be posted at public access points along channels and creeks within the project area. 3. Legibility of tiles and signs must be maintained and tiles must be placed flush with the top of concrete to reduce tripping by pedestrians. Thrash and debris from general site hotel/villa use and other sources will be prevented. Prevention is chiefly form the fact that guests or concerned individuals when properly informed of the consequences of irresponsible disposal of thrash and debris will eventually affect our water bodies. Providing seminars as a form of educating all concerned will provide an extra plus to this BMP. Street Sweeping Street sweeping scheduled at appropriate intervals (we recommend a minimum of bi-weekly interval [this is based on economy and approximate accumulation of dirt and sediments], however it is per the discretion of management to schedule this activity for the wellness and ambiance of the hotel/villa) can reduce pollutants that have built up over time and become deposited from vehicles, plants and other vegetations along sidewalks and islands. It is recommended that this BMP be implemented expeditiously or upon completion of paving construction of all internal driveways and parking lots. The following will be minimized: 1. Thrash and debris from general site hotel/villa use, and from drivers & pedestrians 2. Sediments and soils contaminated with oils and similar products associated with automobiles. Landscaping Landscaping of the slopes and other parts of the site will be incorporated into the plans. To expeditiously achieve plant establishment to reduce erosion, landscaping will consist of both native and non-native plants. The irrigation system will be closely monitored to reduce over irrigation and thus protect the manufactured slopes from being destabilized due to over watering and over saturation of the soil. 11 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 Maintenance of vegetated or landscaped areas (street sidewalks, street landscaped islands or slopes) and other planted areas should be the responsibility of the owner or corporation handling the property. This owner will develop a schedule and funding scheme when the project is turned over by the contractor/developer to them. TABLE 5. Permanent and Operational source control measures Potential source of runoff pollutants Permanent Source control BMPs Operational source control BMPs 1. On-site storm drain inlets Mark inlets with the words “NO DUMPING!” ƒ Maintain periodically repaint or replace inlet markings ƒ Include the following in lease agreements: “Tenant shall not allow anyone to discharge anything to storm drains”. 2. Refuse areas ƒ Roofs/ awnings shall be provided ƒ Trash storage pad is paved ƒ Trash container is walled ƒ Signs will be posted on or near dumpsters with the words “Do not dump hazardous materials here” ƒ Dumpsters will be handled by hired waste management company ƒ Maintain and clean periodically ƒ Prohibit/prevent dumping of liquid or hazardous wastes. 3. Plazas, Park, street and parking lot ƒ Sign with the words “NO LITTERING”. ƒ “TRASH BINS” signs nearby trash bins. ƒ Covered Trash bins with plastic bag inside located strategically. ƒ Street Sweeping. ƒ Maintain periodically repaint or replace sign markings every 6 months. ƒ Street sweeping frequency no less than that of City of Carlsbad. ƒ Washwater containing any cleaning agent/degreaser shall be collected and discharge to the sanitary sewer and not discharged to a stormdrain. 4. Pools, Spas, ponds, decorative fountains, and other water features. ƒ The pools will be plumbed to the sanitary sewer and will be made according to local requirements. ƒ Control algae with chlorine or sodium bromide ƒ Do not discharge pool water to a street or storm drain ƒ Call local wastewater treatment plant for further 12 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 guidance on flow rate restrictions. ƒ Refer to SC-72 “Fountain and Pool Maintenance”. CASQA Handbook 5. Landscape/ Outdoor Pesticide use ƒ Design landscaping to minimize irrigation and runoff, to surface promote infiltration ƒ Where landscape areas are used to retain or detain Stormwater, a native Californian saturated soil tolerant vegetation type is used. ƒ Maintain landscaping using minimum or no pesticides. ƒ Refer to SC-41 “Building and Grounds Maintenance”. CASQA Handbook. 13 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 V. Low Impact Development (LID) Design Strategies 5.1. Description of site activities and potential sources of pollutants To minimize Stormwater-related impacts, the following design principles are applied to the layout of the site: • Detain and retain runoff throughout the site This project implements Bio-retention Swale with underdrain pipes connected to an existing riser. Bio-retention swale can convey high flows while percolating and treating lower flows. At the Sales Building two bio-retention facilities are used to treat the storm water coming from the roof and one location of bio-retention swale at the driveway entrance. An LID facility must be selected to treat the project pollutants of concern identified in Table 1 “Project Pollutants of Concern”. A treatment control facility with high or medium pollutant removal efficiency for the project’s most significant pollutant of concern shall be selected. TABLE 6. Group of Pollutants and relative effectiveness of treatment facilities Source: County of San Diego SUSMP – January 2011 5.2. Approach to integrated LID Optimize the site layout This project is designed to have buildings and circulation to minimize the amount of roofs and paving. Use of Pervious Surfaces and drain impervious area to Engineered Bio-retention Turf associated with landscape is widely used where possible in this project. There is a wide and rather flat adjacent to the toe of slope; this area is used as a storm water retaining facility, allows it drain slowly and also is used to convey big flows coming from the site. This area has 12” underdrain pipe with 12” stand pipe with atrium grate every 50 feet. This under drain will reduce the water level faster through the atrium grate during the 100 year storm event. 14 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 5.3. Integrated LID Design There are three outfalls for this project Labeled as OUTFALL 1, 2 and 3. OUTFALL 1 has bio-retention swale to treat approximately 330,000 square feet of area and labeled the bio-retention as IMP I. OUTFALL 2 also has bio-retention swale to treat approximately 190,700 sqft. site area and labeled the bio-retention as IMP II. OUTFALL 3 treated the storm water into 3 individual bio-retention facilities called as IMP III, IMP IV and IMP V. The design documentation for delineation of the pervious area and impervious area is provided in attachment C. Will this project be utilizing the unified LID design procedure as described in chapter 4 of the Local SUSMP? (If yes, please document in Attachment D following the steps in Chapter 4 of the County SUSMP) Yes No If the project is not utilizing the unified LID design procedure, please describe how the alternative treatment facilities will comply with applicable LID criteria, storm water treatment criteria, and hydromodification management criteria. • Indicate the project pollutants of concern (POCs). Table 7. Grouping of Potential Pollutants of Concern (POCs) by fate during stormwater treatment Pollutant Check Project Specific POCs Coarse Sediment and Trash Pollutants that tend to associate with fine particles during treatment Pollutants that tend to be dissolved following treatment Sediment X X Nutrients X X Heavy Metals X Organic Compounds X Trash & Debris X Oxygen Demanding X Bacteria X Oil & Grease X Pesticides X 15 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – October 2011 16 VI. Operation and Maintenance These Stormwater treatment facilities (bio-retention) are as part of the project subject to be verified for effectiveness and proper performance. As discuss in Chapter V section 5.3, these LIDs are identified as follows: Table 8. Project Specific LID and TC-BMPS BMP Identifier* LID or TC-BMP Type BMP Pollutant of Concern Efficiency (H,M,L) – Table 11 Final Construction Date (to be completed by County inspector) Final Construction Inspector Name (to be completed by County inspector) IMP I Bio-retention H, H, M IMP II Bio-retention H, H, M IMP III Bio-retention H, H, M IMP IV Bio-retention H, H, M IMP V Bio-retention H, H, M Maintenance will be under the guidelines as shown in the “STORMWATER MAINTENANCE PLAN” by the County of San Diego DPW Land Development Guidelines, and the City of Carlsbad JURMP. The owners of the proposed development will eventually be responsible for the maintenance and inspection of the Post-Construction BMP’s. An approved contractor will be hired to pump or clean any inlet or inline treatment manholes of the trapped stormwater wastes. Said contractor will haul wastes to an approved disposal site. Stormwater sampling and monitoring will be the responsibility of the owners. They will also be responsible in determining the sources and locations of pollution if discovered during sampling and monitoring. The owners will need to assess an annual maintenance and inspection/monitoring fee for the upkeep of any Post Construction BMP’s. For landscaping maintenance, the owner will monitor the compliance and maintenance of all vegetated areas as an efficient post construction BMPs. See also, Landscaping under Source Control BMP for more details. Responsible Party for Long-term Maintenance: Identify the parties responsible for long-term maintenance of the BMPs identified above and Source Controls specified in Attachment B. Include the appropriate written agreement with the entities responsible for O&M in Attachment F. Please see Chapter 5 “Private Ownership and Maintenance” on page 94 of the County SUSMP for appropriate maintenance mechanisms. Name: TBD Company Name: Grand Pacific Resorts, INC. Phone Number: (760)431-8500 Street Address: 5900 Pasteur Court, Suite 200 City/State/Zip: Carlsbad, CA 92008 Email Address: Attachments A. Stormwater Standard Questionaire (SWSQ) B. Post-Construction BMP Exhibits C. DMA/ TC-BMP Sizing Exhibit DRAINAGE MANAGE AREAS (DMAs) The entire project area is divided into individual Drainage Manage Areas (DMAs). This delineate is done by following grade brakes and roof ridge lines. In general, there are 3 outfalls in the post-development for this project. Tributary area basin 1 represents the flow that drains to the OUTFALL 1 (south), Tributary area Basin 2 drains to OUTFALL 2 (Southeast), and Basin 3 drains to OUTFALL 3 (east). In post- development this three tributary areas are divided into sub-areas based on the proposed surface shape and the existing topography. These three outfalls ultimately will confluence at the down stream in an existing 5’x4’ storm drain cleanout. Basin 1 is the area that drain to Integrated Management Practice (IMP I), Basin 2 some will be treated in IMP II and the third drains to IMP III, IV and V and then to an existing stormdrain system. Drainage Management Areas Tabulation Self-treating Areas on Slope (ST) Slope 1 22,320 Slope 2 17,951 Slope 3 8,032 Slope 4 2,518 Slope 5 12,053 Slope 6 925 Slope 7 6,287 Slope 8 17,340 Slope 9 9,840 DMA NAME AREA Self-treating Areas on Landscape (ST) Pool Area 7,300 Villa 70 7,491 Villa 69 8,121 Villa 68 13,024 Villa 67 12,383 Villa 66 13,555 Villa 65 16,569 Villa 64 8,266 Villa 63 10,670 Villa 62 7,323 Villa 61 8,151 Villa 60 10,076 Villa 59 8,280 Villa 58 10,382 Villa 57 6,251 DMA NAME AREA Areas Draining to IMPs The Drainage Management Areas (DMAs) are multiplied by a sizing factor to calculate the required size of the IMP and Most of these DMAs drain to IMPs. Due to its location, more than one type of surface drain to the designated IMP. Turf or landscaping is included in determining the size of the bio-retention facility. Δ Area = (pervious area) x (runoff factor) x (sizing factor) IMP I: Basin 1 – Storm Drain system Line A – OUTFALL 1 Areas Draining to IMP I DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor Street inlet 2 4,412 A/C 1.0 4,412 Street inlet 4 6,414 A/C 1.0 6,414 Street inlet 6 10,854 A/C 1.0 10,854 Street inlet 12 8,470 A/C 1.0 8,470 Street inlet 13 4,359 A/C 1.0 4,359 Street inlet 15 5,831 A/C 1.0 5,831 Street inlet 22 10,280 A/C 1.0 10,280 Street inlet 23 16,940 A/C 1.0 16,940 Slope 1 22,320 Landscape 0.1 2,232 Villa 61 7,811 Roof 1.0 7,811 Villa 62 7,837 Roof 1.0 7,837 Villa 63 8,464 Roof 1.0 8,464 Villa 64 6,088 Roof 1.0 6,088 Villa 65 7,725 Roof 1.0 7,725 Villa 68 7,762 Roof 1.0 7,762 1/2 Villa 66 3,879 Roof 1.0 3,879 1/2 Villa 67 4,335 Roof 1.0 4,335 Gym 1,651 Roof 1.0 1,651 Restroom 2,087 Roof 1.0 2,087 Pool Area 49,367 Hardscape 1.0 49,367 Villa 69 7,762 Roof 1.0 7,762 Villa 70 7,762 Roof 1.0 7,762 Villa 61 8,151 Landscape 0.1 815 Villa 62 7,323 Landscape 0.1 732 Villa 63 10,670 Landscape 0.1 1,067 Villa 64 8,266 Landscape 0.1 827 Villa 67 13,215 Landscape 0.1 1,322 Villa 68 13,024 Landscape 0.1 1,302 Villa 69 8,121 Landscape 0.1 812 Villa 70 7,491 Landscape 0.1 749 Pool Area 7,300 Landscape 0.1 730 Slope 8 17,349 Landscape 0.1 1,735 Villa 65 16,569 Landscape 0.1 1,657 - Minimun - IMP Area - Sizing Factor sq.ft. 204,070 0.04 8,163 8,700 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP II DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor Street inlet 51 7,248 A/C 1.0 7,248 Street inlet 53 6,352 A/C 1.0 6,352 Street inlet 57 7,352 A/C 1.0 7,352 Street inlet 60 5,288 A/C 1.0 5,288 Street inlet 63 12,031 A/C 1.0 12,031 Street inlet 65 5,244 A/C 1.0 5,244 Street inlet 67 7,985 A/C 1.0 7,985 Street inlet 70 8,437 A/C 1.0 8,437 Villa 58 7,762 Roof 1.0 7,762 Villa 59 8,214 Roof 1.0 8,214 Villa 60 8,443 Roof 1.0 8,443 1/2 Villa 66 3,883 Roof 1.0 3,883 1/2 Villa 67 3,430 Roof 1.0 3,430 Villa 58 10,382 Landscape 0.1 1,038 Villa 59 8,280 Landscape 0.1 828 Street Access 12,031 AC/Sidewalk 1.0 12,031 Villa 60 10,076 Landscape 0.1 1,008 Slope 2 17,951 Landscape 0.1 1,795 Slope 5 12,053 Landscape 0.1 1,205 Slope 6 925 Landscape 0.1 93 Slope 7 6,287 Landscape 0.1 629 Slope 9 9,840 Landscape 0.1 984 Minimun Sales Bldg 5,474 hardscape 1.0 5,474 IMP Area Villa 67 5,736 Landscape 0.1 574 Sizing Factor sq.ft. 117,327 0.04 4,693 4,900 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP III DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor 1/2 Bldg 57 5,442 Roof 1.0 5,442 Minimun IMP Area Sizing Factor sq.ft. 5,442 0.04 218 4,900 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP IV DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor 1/2 Bldg 57 5,442 Roof 1.0 5,442 Minimun IMP Area Sizing Factor sq.ft. 5,442 0.04 218 4,900 sq.ft. B Bio-retention IMP Proposed Area Areas Draining to IMP V DMA DMA DMA Post- Area Name Area project DMA × Soil Type: IMP Name (square surface Runoff runoff feet) type factor factor Driveway 13,668 Roof 1.0 13,668 Slope 4 2,518 Landscape 0.1 252 Minimun IMP Area Sizing Factor sq.ft. 13,920 0.04 557 sq.ft. B Bio-retention IMP Proposed Area D. BMP Product Information and Educational Materials Whatisstormwaterrunoff? Whyisstormwaterrunoff aproblem? Theeffectsofpollution Stormwater runoff occurs when precipitation from rain or snowmelt flows over the ground. Impervious surfaces like driveways, sidewalks, and streets prevent stormwater from naturally soaking into the ground. Stormwater can pick up debris, chemicals, dirt, and other pollutants and flow into a storm sewer system or directly to a lake, stream, river, wetland, or coastal water. Anything that enters a storm sewer system is discharged untreated into the waterbodies we use for swimming, fishing, and providing drinking water. Polluted stormwater runoff can have many adverse effects on plants, fish, animals, and people. Sediment can cloud the water and make it difficult or impossible for aquatic plants to grow. Sediment also can .destroy aquatic habitats Excess nutrients can cause algae blooms. When algae die, they sink to the bottom and decompose in a process that removes oxygen from the water. Fish and other aquatic organisms can’t exist in water with low dissolved oxygen levels. Bacteria and other pathogens can wash into swimming areas and create health hazards, often making beach closures necessary. Debris—plastic bags, six-pack rings, bottles, and cigarette butts—washed into waterbodies can choke, suffocate, or disable aquatic life like ducks, fish, turtles, and birds. Household hazardous wastes like insecticides, pesticides, paint, solvents, used motor oil, and other auto fluids can poison aquatic life. Land animals and people can become sick or die from eating diseased fish and shellfish or ingesting polluted water. Polluted stormwater often affects drinking water sources. This, in turn, can affect human health and increase drinking water treatment costs. AftertheStorm EPA 833-B-03-002 January 2003 For more information contact: or visit www.epa.gov/npdes/stormwater www.epa.gov/nps ACitizen’sGuideto UnderstandingStormwater WHEN IT RAINS IT DRAINS WHEN IT RAINS IT DRAINS Internet Address (URL) HTTP://www.epa.gov Recycled/Recyclable Printed With Vegetable Oil Based Inks on 100% Postconsumer,Process Chlorine Free Recycled Paper ● ● ���������������������������������������� ����������������������������������������������������������� ��������������������������������� ������������������������������������������� ������������������������������������������������������������� ������� ��������������������������������������������������������������� ���������������������������������������������������� ���������������������������� Protect Natural Features ���� ��� �������������������� ��������������������������������������� ���������������������������������������������������������������� ������������������������������������������������������ ������������������������������������������������������������� �������������������������������������������������������������� ������������������������������������������������������������� ������������������������������������������������������������������������������������������������ ����������������������������������������������������������� ��������������������������� Vegetative Buffers �������������������������������������������������������� ����������������������������������������������������������������� ��������������������������������������������� ��������������������������������������������������������������������� ������������ ������������������������������������������������������������ Site Stabilization ��������������������������������������������������������������� ��������������������������������������������� � Silt Fencing ������������������������������������������������������������ ������������������������������������������� ������������������������������������������������������������������������������ ���������������������������������������������������� ������������������������������������� Dirt Stockpiles Storm Drain Inlet Protection �������������������������������� �������������������������������������������������������� ��������������������������������������������� �������������������������������������������������������������� ���������������������������������� ����������������������������������������������������������� �������������������������������������������������������������������������� Slopes Construction Entrances ���� ��� ���� ��� ���� ��� ���� ��� ���� ��� ���� ��� ���� ��� ��� IN RIVERSIDE COUNTY ....Call 1-800-506-2555 TO REPORT ILLEGAL STORMDRAIN DISPOSAL E-mail: Flood.fcnpdes@co.riverside.ca.us Visit our website: www.floodcontrol.co.riverside.ca.us Brought to you by the Storm Water/Clean Water PollutionProtection Program.....REMEMBER, ONLY RAIN IN THE STORMDRAIN! Maintain your BMPs! Construction Phasing www.epa.gov/npdes/menuofbmps Riverside County has two drainage systems - sewers and storm drains. The storm drain system was designed to reduce flooding by carrying excess rainwater away from streets and developed areas. Since the storm drain system does not provide for water treatment, it also serves the function of transportingpollutantsdirectlytoourlocalwaterways. Stormwater runoff is a part of the natural hydrologic process. However, land development and construction activities can significantly alter natural drainage processes and introduce pollutants into stormwater runoff. Polluted stormwater runoff from construction sites has been identified as a major source of water pollution in California. It jeopardizes the quality of our local waterways and can pose a serious threat to the health of our aquaticecosystems. Because preventing pollution is much easier and less costly than cleaning up “after the fact,” the Cities and County of Riverside StormWater/CleanWater Protection Program informs residents and businesses on pollution prevention activities. This pamphlet describes various Best Management Practices (BMPs) that construction siteoperatorscanusetopreventstormwaterpollution. In accordance with applicable federal and state law, the Cities and County of Riverside have adopted ordinances for stormwater management and discharge control that the discharge of pollutants into the storm drain system or local surface water. This includes discharges from construction sites containing sediment, concrete, mortar, paint, solvents, lubricants,vehiclefluids,fuel,pesticides,andconstructiondebris. The Federal, State and local regulations strictly prohibit the discharge of sediment and pollutants into the streets, the storm drain system or waterways.As an owner, operator or supervisor of a construction site, you may be held financially responsible for any environmentaldamagecausedbyyoursubcontractorsoremployees. unintended Unlike sanitary sewers, storm drains are not connected to a wastewater treatment plant – they flow directly to our local streams,riversandlakes. prohibit PLEASE NOTE: StormWater Pollution...What You Should KnowStormWater Pollution...What You Should Know STORMWATER POLLUTION FROM CONSTRUCTION ACTIVITIES The two most common sources of stormwater pollution problems associatedwithconstructionactivitiesare and . Failure to maintain adequate erosion and sediment controls at construction sites often results in sediment discharges into the storm drain system, creating multiple problems onceitenterslocalwaterways. Construction vehicles and heavy equipment can also track significant amounts of mud and sediment onto adjacent streets. Additionally, wind may transport construction materials and wastes into streets storm drains, or directlyintoourlocalwaterways. erosion sedimentation The Cities and County of Riverside StormWater/CleanWater Protection Program The Cities and County of Riverside StormWater/CleanWater Protection Program What you should know for... StormWaterPollutionStormWaterPollution Developers General Contractors Home Builders Construction Inspectors Anyoneintheconstruction business GENERAL CONSTRUCTION& SITESUPERVISION Best Management Practices (BMPs) for: StateWaterResourcesControlBoard Division of Water Quality 1001 I Street Sacramento CA 95814 (916) 341-5455 Santa Ana Regional Water Quality Control Board - Region 8 3737 Main Street, Suite 500 Riverside, CA 92501-3348 (909) 782-4130 San Diego Regional Water Quality Control Board - Region 9 9771 Clairemont Mesa Blvd., Suite A San Diego, CA 92124 (858) 467-2952 Colorado River Basin Regional Water Quality Control Board - Region 7 73-720 Fred Waring Drive, Suite 100 Palm Desert, CA 92260 (760) 346-7491 www.swrcb.ca.gov/stormwtr/ www.swrcb.ca.gov/~rwqcb8/ www.swrcb.ca.gov/~rwqcb9/ www.swrcb.ca.gov/~rwqcb7/ ResourcesTo report a hazardous materials spill, call: For recycling and hazardous waste disposal, call: To report an illegal dumping or a clogged storm drain, call: To order additional brochures or to obtain information on other pollution prevention activities, please call (909) 955-1200 or visit the StormWater/CleanWater Protection Program websiteat: The StormWater/CleanWater Protection Program gratefully acknowledges the Santa Clara Valley Nonpoint Pollution Control Program, Alameda Countywide CleanWater Program and the City of LosAngelesStormwaterManagementDivisionfor informationprovidedinthisbrochure. Riverside County Hazardous Materials Emergency Response Team 8:00 a.m. – 5:00 p.m. after 5:00 p.m. In an emergency call: (909) 358-5055 (909) 358-5245 911 (909) 358-5055 1-800-506-2555 www.co.riverside.ca.us/depts/flood/waterquality npdes.asp StormWater CleanWater PROTECTION PROGRAM GENERAL CONSTRUCTION ACTIVITIES STORMWATER PERMIT (Construction Activities General Permit) The State Water Resources Control Board (SWRCB) adopted a new Construction Activities General Permit (WQ Order No. 99- 08DWQ) on August 19, 1999, superseding the now expired SWRCB statewide General Permit (WQ Order No. 92-08DWQ). This permit is administered and enforced by the SWRCBandthelocalRegionalWaterQuality Control Boards (RWQCB). The updated Construction Activities General Permit establishes a number of new stormwater management requirements for construction siteoperator. Yes, if construction activity results in the disturbance of five or more acres of total land area or is part of a common plan of developmentthatresultsinthedisturbanceof fiveormoreacres. Obtain the permit package and submit the completed Notice of Intent (NOI) form to the Some construction activies stormwater permits are issued on a regional basis.ConsultyourlocalRWQCBtofindoutif your project requires coverage under any of thesepermits. NOTE: FrequentlyAskedQuestions: Does my construction site require coverage under the Construction Activities General Permit? How do I obtain coverage under the Construction Activities General Permit? SWRCB prior to grading or disturbing soil at the construction site. For ongoing construction activity involving a change of ownership,thenewownermustsubmitanew NOI within 30 days of the date of change of ownership.ThecompletedNOIalongwiththe requiredfeeshouldbemailedtotheSWRCB. Implement BMPs for non-stormwater dischargesyear-round. Prepare and implement a Stormwater Pollution Prevention Plan (SWPPP) prior tocommencingconstructionactivities. Keep a copy of the SWPPP at the construction site for the entire duration of theproject. Calculate the anticipated stormwater run- off. Implement an effective combination of erosion and sediment control on all soil disturbedareas. Conduct site inspections prior to anticipated storm events, every 24-hours during extended storm events, and after actualstormevent. Perform repair and maintenance of BMPs as soon as possible after storm events dependinguponworkersafety. What must I do to comply with the requirements of the Construction Activities General Permit? NOTE: www.swrcb.ca.gov/stormwtr/ How long is this Construction Activities General Permit in effect? Update the SWPPP as needed, to manage pollutants or reflect changes in siteconditions. Include description of post construction BMPs at the construction site, including parties responsible for long-term maintenance. The Permit coverage stays in effect untilyou submit a Notice of Termination (NOT) to the SWRCB. For the purpose of submitting a NOT, all soil disturbing activities have to be completed and one of the three following criteriahastobemet: 1. Changeofownership; 2. A uniform vegetative cover with 70 percent coverage has been established; or, 3. Equivalent stabilization measures such as the use of reinforced channel liners, soil cement, fiber matrices, geotextiles, etc.,havebeenemployed. Please refer to the Construction Activities General Permit for detailed information. You may contact the SWRCB, your local RWQCB, or visit the SWRCB website at to obtain a State Construction Activities StormwaterGeneralPermitpacket. BEST MANAGEMENT PRACTICES Protect all storm drain inlets and streams located near the construction site to prevent sediment-laden water from enteringthestormdrainsystem. Limitaccesstoandfromthesite.Stabilize construction entrances/exits to minimize thetrackoutofdirtandmudontoadjacent streets. Conduct frequent street sweeping. Protect stockpiles and construction materials from winds and rain by storing them under a roof, secured impermeable tarporplasticsheeting. Avoidstoringorstockpilingmaterialsnear stormdraininlets,gulliesorstreams. Phasegradingoperationstolimitdisturbed areasanddurationofexposure. Perform major maintenance and repairs ofvehiclesandequipmentoffsite. Wash out concrete mixers only in designated washout areas at the constructionsite. Set-upandoperatesmallconcretemixers ontarpsorheavyplasticdropcloths. Keep construction sites clean by removing trash, debris, wastes, etc. on a regularbasis. The following Best Management Practices (BMPs) can significantly reduce pollutant discharges from your construction site. Compliance with stormwater regulations can be as simple as minimizing stormwater contact with potential pollutants by providing covers and secondary containment for construction materials, designating areas away from storm drain systems for storing equipment and materialsandimplementinggoodhousekeepingpracticesattheconstructionsite. Clean-up spills immediately using dry clean-up methods (e.g., absorbent materials such as cat litter, sand or rags for liquid spills; sweeping for dry spills such as cement, mortar or fertilizer) and by removing the contaminated soil from spillsondirtareas.. Prevent erosion by implementing any or a combination of soil stabilization practices such as mulching, surface roughening, permanentortemporaryseeding. Maintain all vehicles and equipment in good working condition. Inspect frequently forleaks,andrepairpromptly. Practice proper waste disposal. Many construction materials and wastes, including solvents, water-based paint, vehicle fluids, broken asphalt and concrete, wood, and cleared vegetation canberecycled. Materialsthatcannotbe recycled must be taken to an appropriate landfill or disposed of as hazardous waste. Coveropendumpsterswithsecuredtarps or plastic sheeting. Never clean out a dumpster by washing it down on the constructionsite. Arrange for an adequate debris disposal schedule to insure that dumpsters do not overflow. What Should You Do? Advance Planning to Prevent Pollution Note:Consult local drainage policies for more information. Remove existing vegetation only as needed. Schedule excavation, grading, and paving operations for dry weather periods,ifpossible. Designate a specific area of the construction site, well away from storm drain inlets or watercourses, for material storage and equipment maintenance. Develop and implement an effective combination of erosion and sediment controls for the constructionsite. Practice source reduction by ordering only the amount of materials that are needed to finish theproject. Educate your employees and subcontractors about stormwater management requirements and their pollution prevention responsibilities. 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��������������������������������� ���������������������������������� ������������������������������� Auto care Washing your car and degreasing auto parts at home can send detergents and other contaminants through the storm sewer system. Dumping automotive fluids into storm drains has the same result as dumping the materials directly into a waterbody. Pet waste Pet waste can be a major source of bacteria and excess nutrients in local waters. When walking your pet, remember to pick up the waste and dispose of it properly. Flushing pet waste is the best disposal method. Leaving pet waste on the ground increases public health risks by allowing harmful bacteria and nutrients to wash into the storm drain and eventually into local waterbodies. Septic systems Leaking and poorly maintained septic systems release nutrients and pathogens (bacteria and viruses) that can be picked up by stormwater and discharged into nearby waterbodies. Pathogens can cause public health problems and environmental concerns. Lawn care Excess fertilizers and pesticides applied to lawns and gardens wash off and pollute streams. In addition, yard clippings and leaves can wash into storm drains and contribute nutrients and organic matter to streams. Education is essential to changing people's behavior. Signs and markers near storm drains warn residents that pollutants entering the drains will be carried untreated into a local waterbody.Recycle or properly dispose of household products that contain chemicals, such as insecticides, pesticides, paint, solvents, and used motor oil and other auto fluids. Don’t pour them onto the ground or into storm drains. Use a commercial car wash that treats or recycles its wastewater, or wash your car on your yard so the water infiltrates into the ground. Repair leaks and dispose of used auto fluids and batteries at designated drop-off or recycling locations. Don’t overwater your lawn. Consider using a soaker hose instead of a sprinkler. Use pesticides and fertilizers sparingly. When use is necessary, use these chemicals in the recommended amounts. Use organic mulch or safer pest control methods whenever possible. Compost or mulch yard waste. Don’t leave it in the street or sweep it into storm drains or streams. Cover piles of dirt or mulch being used in landscaping projects. Inspect your system every 3 years and pump your tank as necessary (every 3 to 5 years). Don't dispose of household hazardous waste in sinks or toilets. Dirt, oil, and debris that collect in parking lots and paved areas can be washed into the storm sewer system and eventually enter local waterbodies. Sweep up litter and debris from sidewalks, driveways and parking lots, especially around storm drains. Cover grease storage and dumpsters and keep them clean to avoid leaks. Report any chemical spill to the local hazardous waste cleanup team. They’ll know the best way to keep spills from harming the environment. Erosion controls that aren’t maintained can cause excessive amounts of sediment and debris to be carried into the stormwater system. Construction vehicles can leak fuel, oil, and other harmful fluids that can be picked up by stormwater and deposited into local waterbodies. Divert stormwater away from disturbed or exposed areas of the construction site. Install silt fences, vehicle mud removal areas, vegetative cover, and other sediment and erosion controls and properly maintain them, especially after rainstorms. Prevent soil erosion by minimizing disturbed areas during construction projects, and seed and mulch bare areas as soon as possible. Uncovered fueling stations allow spills to be washed into storm drains. Cars waiting to be repaired can leak fuel, oil, and other harmful fluids that can be picked up by stormwater. Clean up spills immediately and properly dispose of cleanup materials. Provide cover over fueling stations and design or retrofit facilities for spill containment. Properly maintain fleet vehicles to prevent oil, gas, and other discharges from being washed into local waterbodies. Install and maintain oil/water separators. Lack of vegetation on streambanks can lead to erosion. Overgrazed pastures can also contribute excessive amounts of sediment to local waterbodies. Excess fertilizers and pesticides can poison aquatic animals and lead to destructive algae blooms. Livestock in streams can contaminate waterways with bacteria, making them unsafe for human contact. Keep livestock away from streambanks and provide them a water source away from waterbodies. Store and apply manure away from waterbodies and in accordance with a nutrient management plan. Vegetate riparian areas along waterways. Rotate animal grazing to prevent soil erosion in fields. Apply fertilizers and pesticides according to label instructions to save money and minimize pollution. Permeable Pavement Rain Barrels Rain Gardens and Grassy Swales Vegetated Filter Strips —Traditional concrete and asphalt don’t allow water to soak into the ground. Instead these surfaces rely on storm drains to divert unwanted water. Permeable pavement systems allow rain and snowmelt to soak through, decreasing stormwater runoff. —You can collect rainwater from rooftops in mosquito- proof containers. The water can be used later on lawn or garden areas. —Specially designed areas planted with native plants can provide natural places for rainwater to collect and soak into the ground. Rain from rooftop areas or paved areas can be diverted into these areas rather than into storm drains. —Filter strips are areas of native grass or plants created along roadways or streams. They trap the pollutants stormwater picks up as it flows across driveways and streets. Residential landscaping Improperly managed logging operations can result in erosion and sedimentation. Conduct preharvest planning to prevent erosion and lower costs. Use logging methods and equipment that minimize soil disturbance. Plan and design skid trails, yard areas, and truck access roads to minimize stream crossings and avoid disturbing the forest floor. Construct stream crossings so that they minimize erosion and physical changes to streams. Expedite revegetation of cleared areas. Commercial StormwaterPollutionSolutions Construction Agriculture Automotive Facilities Forestry CT 03-02 CARLSBAD RANCH, PLANNING AREA NO.5 MARBRISA – PHASE II STORM WATER MANAGEMENT PLAN (SWMP) ADDENDUM TO PREVIOUS SWMP DATED November 14, 2003 PREPARED FOR GRAND PACIFIC CARLSBAD, L.P. 5900 PASTEUR COURT, SUITE 200 CARLSBAD, CA 92008 (760) 431-8500 Prepared by: ROBERT D. DENTINO LAND PLANNING● ENGINEERING● GIS●SURVEYING 440 State Place Escondido, CA 92029 Ph:760-745-8118 Fax: 745-8118-1890 Preparation Date: 10-3-2011 Revision 1: 12-2-2011 Revision 2: 01-5-2012 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 1 TABLE OF CONTENT I. Project Description 1.1 Project Existing and Vicinity Map 1.2 Project Stormwater Quality Determination 1.3 Proposed Land use and anticipated activities that would affect Stormwater 1.4 Nearby water bodies, existing storm drain systems II. Applicable Stormwater Standards 2.1 Completed Storm Water Standard Questionnaires (SWSQ) 2.2 HMP Applicability Determination using expanded narrative from SUSMP & HMP Lawful Prior Compliance III. Identify Pollutant of concern 3.1 Identify Watershed and Hydrologic Unit Contribution Basin and Receiving waters 3.2 Identify pollutants associated with type of Land use 3.3 Beneficial uses of receiving water 3.4 Summary of primary pollutants of concern IV. Source Control Measures 4.1 Description of site activities and potential sources of pollutants 4.2 Complete table showing sources, permanent source control, and operational source control V. Low Impact Development (LID) design strategies 5.1 Description of site activities and potential sources of pollutants 5.2 Approach to Integrated LID 5.3 Integrated LID Design VI. Operation and Maintenance 6.1 Ownership and Responsibility Attachments A. Construction Threat Assessment worksheet E-33 and Stormwater Standards Questionnaire (SWSQ) Form E-34 B. Post-construction BMP Exhibit C. DMA/ TCBMP sizing Exhibit D. BMP product information and Educational Material E. SOILS REPORT by MTGL CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 2 I. Project Description 1.1 Project Description and Vicinity Map The proposed development is located at the west of Grand Pacific Drive, 600 feet from Cannon Road and Grand Pacific Drive intersection. It is approximately 12.8 acres as a part of 56.4 acres Carlsbad Ranch, Planning Area 5 project, County of San Diego, California. At this Phase II, the existing condition is a graded pad (graded from Phase I). The storm water at the existing condition is collected into a depression area acting as a detention pond with 36” stand pipe and 24” storm drain outlet to a bio-retention area at the downstream before draining to a 42” public storm drain on the south. The proposed development will contain a combination of parking lots/areas, swimming pools, landscaping and dwelling or building areas as well as the proposed private street that will provide access throughout the entire site. Infrastructures will include new storm drain as well as water and sewer main extensions and new dry utilities runs/extensions to service the lots. Fig. 1. Vicinity Map CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 3 1.2 Project Stormwater Quality Determination Total Project Site Area ____12.8______ (Acres) Estimated amount of disturbed acreage: ____12.8___ (Acres) WDID number from the SWRCB: ________ Amount of impervious surface on your project before and after construction. A. Total size of project site: ___12.8____ (Acres) B. Total impervious area (including roof tops) before construction __0.10__ (Acres) C. Total impervious area (including roof tops) after construction ___7.5__ (Acres) Calculate percent impervious before construction: B/A = __0.80____% Calculate percent impervious after construction: C/A = __57___% 1.3 Proposed Land use and anticipated activities that would affect Stormwater Proposed Land use is Multi-apartment building (time share) and recreation facility. Anticipated pollutants that may be generated from this type of land use activity are as follows: Trash and Debris – Trash (such as paper, plastic, polystyrene packing foam, and aluminum materials) and biodegradable organic matter (such as leaves, grass cuttings, and food waste) are general waste products on the landscape. The presence of trash and debris may have a significant impact on the recreational value of a water body and aquatic habitat. Excess organic matter can crate a high biochemical oxygen demand in stream and thereby lower its water quality. In addition, in areas where stagnant water exists, the presence of excess organic matter can promote septic conditions resulting in the growth of undesirable organisms and the release of odorous and hazardous compounds such as hydrogen sulfide. Oxygen-Demanding Substances – This category includes biodegradable organic material as well as chemicals that react with dissolved oxygen in water to form other compounds. Proteins, carbohydrates, and Fats are examples of biodegradable organic compounds. Compounds such as Ammonia and Hydrogen sulfide are examples of oxygen-demanding compounds. The oxygen demand of a substance can lead to depletion of dissolved oxygen in a water body and possibly the development of septic conditions. Oil and Grease – Oil and grease are characterized as high-molecular weight organic compounds. Primary sources of oil and grease are petroleum hydrocarbon products, motor products from leaking vehicles, esters, oils, fats, waxes, and high molecular-weight fatty acids. Introduction of these pollutants to the water bodies are very possible due to the wide use and applications of some of these products in municipal, residential, commercial, industrial, and construction areas. Elevated oil and grease content can decrease the aesthetic value of the water body, as well as the water quality. Pathogens – Pathogens (bacteria and viruses) are ubiquitous microorganisms that thrive under certain environmental conditions. Their proliferation is typically caused by the transport of animal or human fecal wastes from the watershed. Water, containing excessive bacteria and viruses can alter the aquatic habitat and create a harmful environment for humans and aquatic life. Also, the decomposition of excess organic wastes causes increased growth of undesirable organisms in the water. Pesticides – Pesticides (including herbicides) are chemical compound commonly used to control nuisance growth or prevalence of organisms. Excessive or improper application of a pesticide may result in runoff containing toxic levels of its active ingredient. Nutrients – Nutrients are in organic substances, such as nitrogen and phosphorus. They commonly exist in the form of mineral salts that are either dissolved or suspended in water. Primary sources or nutrients in urban runoff are fertilizers and eroded soils. Excessive discharge of nutrients to water bodies and streams can cause excessive aquatic algae and plant growth. Such excessive production, CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 4 referred to as Cultural Eutrophication, may lead to excessive decay of organic matter in the water body, loss of oxygen in the water, release of toxins in sediment, and the eventual death of aquatic organisms. Metals – the primary source of metal pollution in urban runoff is typically commercially available metals and metal products. Metals of concern include Cadmium, Chromium, Copper, Lead, mercury, and zinc. Lead and chromium have been used as corrosion inhibitors in primer coatings and cooling tower systems. Metals are also raw material components in non-metal products such as fuels, adhesives, paints, and other coatings. At low concentrations naturally occurring in soil, metals may not be toxic. However, at higher concentrations, certain metals can be toxic to aquatic life. Humans can be impacted from contaminated groundwater resources, and bioaccumulation of metals in fish and shellfish. Environmental concerns, regarding the potential for release of metals to the environment, have already led to restricted metal usage in certain applications. Sediments – Sediments are soils or other surficial materials eroded and then transported or deposited by the action of wind, water, ice or gravity. Sediments can increase turbidity, clog fish gills, reduce spawning habitat, lower young aquatic organisms survival rates, smoother bottom dwelling organisms, and suppress aquatic vegetation growth. The first flush of storm water will be treated by TCBMP media filter or sand filter and the 100 year-storm event will be over flowing to the catch basins/ grated inlets. Some temporary ponding areas may occur on some spots of the parking space during big storm event to detain some of the storm water and to mimic the existing condition. All run-offs will be directed to sand filter areas before they are released to the public storm drain. 1.4 Nearby waterbodies and Impaired waterbodies This major part of the project is located in the Carlsbad Hydrologic Unit (904.00), Encinas Hydrologic Watershed (904.40). Receiving water downstream is Canyon De Las Encinas and eventually to Pacific Ocean. The Carlsbad Hydrologic Unit is approximately 210 square miles in area extending from the headwaters above Lake Wohlford in the east to Pacific Ocean in the west and from Vista and Oceanside in the north to Solana Beach, Escondido, and the community of Rancho Santa Fe to the south. The impaired waterbodies is NOT listed in 303(d) 2007 list. The proposed project is designed so that it will not significantly alter the drainage pattern on the site. The surface water runoff discharge will not divert from existing conditions. This project will not present any potential threat to erosion or water quality deterioration. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 5 II. Applicable Stormwater Standards 2.1. Stormwater Standard Questionnaires (SWSQ) To address post-development pollutants that may be generated from development projects and meet the City of Carlsbad requirements a Stormwater Standard Questioners is completed. Please refer to Attachment A for this completed form. 2.2. Hydromodification Lawful Prior Compliance Phase II – The Water Quality or Stormwater Management and Maintenance for this portion of the site was covered in the original entitled CEQA Master SWMP document for the entire Carlsbad Ranch, Planning Area No. 5 Site. The referenced CEQA Master SWMP document was dated from July 2004. Consequently, the water quality measures that were outlined in the overall CEQA Master SWMP were constructed under the Phase I portion of the site (Per DWG.NO. 428-9A dated 9-27-2005, and outlined in the SWMP for Phase I, dated May 2005). A number of these measures fall within the footprint of the proposed Phase II portion of the site and were designed to treat this area. These include: Perimeter Bio-swales, ultimate downstream storm drain outfall pipes as well as off-site detention ponds constructed per adjacent projects. Mass grading for the Phase II area was also performed per permitted plans (DWG. No. 428-9A) These were all completed in compliance with the original Master CEQA SWMP for the site. This SWMP for Phase II is an addendum to that previously referenced master plan in order to comply with the newly adopted LID requirements. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 6 III. Identify Pollutant of Concern 3.1 Identify Watershed and Hydrologic Unit Contribution Basin And Receiving Waters San Juan 901 Santa Margarita 902 San Luis Rey 903 √ Carlsbad 904 San Dieguito 905 Penasquitos 906 San Diego 907 Sweetwater 909 Otay 910 Tijuana 911 Whitewater 719 Clark 720 West Salton 721 Anza Borrego 722 Imperial 723 http://www.waterboards.ca.gov/sandiego/water_issues/programs/basin_plan/index.shtml Receiving water downstream Number Name 904.40 Encinas http://www.waterboards.ca.gov/sandiego/water_issues/programs/basin_plan/index.shtml SURFACE WATERS Table 1. Receiving Surface Waters Surface Waters (rivers, creeks, stream, etc.) Hydrologic Unit Basin Number Impairment(s) listed [303(d) listed waters or waters with established TMDLs ] Distance to Project Canyon de Las Encinas 904.40 Not listed 0.75 miles 3.2 Identify Pollutants associated with type of Land use As discuss on section 1.2 regarding proposed land use and anticipated activities that would affect Stormwater, Table 1 below shows what are the Developments that are most likely generated types of pollutants. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 7 Table 2. Anticipated and Potential Pollutants Generated by Land Use Source: SUSMP County of San Diego – January 2011 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 8 Anticipated Potential Pollutants Using Table 1 above, the anticipated pollutants of this project are the following: ƒ Sediments ƒ Trash & Debris ƒ Nutrients ƒ Oxygen Demanding Substances ƒ Heavy metal ƒ Oil & grease ƒ Organic Compounds ƒ Pesticides ƒ Bacteria & viruses 3.3 Beneficial uses of receiving water The beneficial uses for the hydrologic unit are included in Table 2 and 3. These tables were extracted from the Water Quality Control Plan for the San Diego Basin. The following are the meaning and descriptions of the acronyms used: MUN – Municipal and Domestic Supply: Includes uses of water for community, military, or individual water supply systems including, but not limited to, drinking water supply. AGR – Agricultural Supply: Includes uses of water for farming, horticulture, or ranching including, but not limited to, irrigation, stock watering, or support of vegetation for range of grazing. IND – Industrial Services Supply: Includes uses of water for industrial activities that do not depend primarily on water quality including, but not limited to, mining, cooling water supply, hydraulic conveyance, gravel washing, fire protection, or oil well re-pressurization. REC1 – Contact Recreation: Includes uses of water for recreational activities involving body contact with water, where ingestion of water is reasonably possible. These uses include, but are not limited to swimming, wading, water-skiing, skin and SCUBA diving, surfing, white water activities, fishing, or use of natural hot springs. REC2 – Non-Contact Recreation: Includes the uses of water for recreational activities involving proximity to water, but not normally involving body contact with water, where ingestion of water is reasonably possible. These uses include, but not limited to picnicking, sunbathing, hiking, camping, boating, tide pool and marine life study, hunting, sightseeing, or aesthetic enjoyment in conjunction with the above activities. WARM – Warm Freshwater Habitat: Includes uses of water that support warm water ecosystems including, but not limited to, preservation or enhancement of aquatic habitats, vegetation, fish or wildlife, including invertebrates. WILD – Wildlife Habitat: Includes uses of water that support terrestrial ecosystems including, but not limited to, preservation and enhancement of terrestrial habitats, vegetation, wildlife, (e.g., mammals, birds, reptiles, amphibians, invertebrates), wildlife water and food sources. INLAND SURFACE WATERS Under the Clean Water Act the state is required to specify appropriate water uses to be achieved and protected. The beneficial use designation of surface waters of the state must take into consideration the use and value of water for public water supplies, protection and propagation of fish, shellfish and wildlife, recreation in and on the water, agricultural, industrial and other purposes including navigation. Inland Surface waters have the following beneficial uses as shown on Table 2 CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 9 Carlsbad Hydrologic Unit (904.00), Canyon De Las Encinas (904.40) TABLE 3. Beneficial Uses for Inland Surface Waters Hydrologic Unit M I R R W W A NumberUNEEAIG NDCCRLR 12MD 904.4 * -oxxx - GROUND WATER Under the Clean Water Act the state is required to specify appropriate water uses to be achieved and protected. Ground waters in the San Diego Region can have as many as six designated beneficial uses including: (1) municipal and domestic; (2) agricultural; (3) industrial service supply; (4) industrial process supply; (5) ground water recharge; and (6) freshwater replenishment. None of these beneficial uses will be impaired or diminished due to the construction and operation of this project. Carlsbad Hydrologic Unit (904.00), Agua Hedionda Creek (904.31) TABLE 4. Beneficial Uses for Ground Water Hydrologic Unit M A I Number U G N NRD 904.40 x x x * Excepted from Municipal o Potential Beneficial Use x Existing Beneficial Use - Not Applicable 3.4 Summary of primary pollutants of concern This major part of the project is located in the Carlsbad Hydrologic Unit (904.00), Encinas Hydrologic watershed (904.40). Receiving water downstream is Canyon De Las Encinas Creek (904.40) and eventually to Pacific Ocean. The impaired water-bodies is NOT listed in 303(d) 2007 lists. Therefore, the primary pollutants of concern for the project are unknown. The secondary pollutants are sediments, Nutrients, Oxygen Demanding substances, heavy metal, trash, debris, oil and grease and pesticides. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 10 IV. Source Control Measures 4.1 Description of site activities and potential sources of pollutants Source control BMPs are structured around the concept of “activities” as experience has shown that with few exceptions one or more of these activities will satisfactorily describe all commercial facilities. Storm Drain Signage Storm drain inlets and access points to natural drainage courses will be marked to discourage illegal dumping, with markings indicating the receiving water by name. Specifically: 1. All storm drain inlets and catch basins within the project area will have a tile or signage placed with prohibited language (such as: ‘NO DUMPING – DRAINS TO PACIFIC OCEAN SHORELINE”) 2. Signs and prohibited language and /or graphical icons, which prohibit illegal dumping, must be posted at public access points along channels and creeks within the project area. 3. Legibility of tiles and signs must be maintained and tiles must be placed flush with the top of concrete to reduce tripping by pedestrians. Thrash and debris from general site hotel/villa use and other sources will be prevented. Prevention is chiefly form the fact that guests or concerned individuals when properly informed of the consequences of irresponsible disposal of thrash and debris will eventually affect our water bodies. Providing seminars as a form of educating all concerned will provide an extra plus to this BMP. Street Sweeping Street sweeping scheduled at appropriate intervals (we recommend a minimum of bi-weekly interval [this is based on economy and approximate accumulation of dirt and sediments], however it is per the discretion of management to schedule this activity for the wellness and ambiance of the hotel/villa) can reduce pollutants that have built up over time and become deposited from vehicles, plants and other vegetations along sidewalks and islands. It is recommended that this BMP be implemented expeditiously or upon completion of paving construction of all internal driveways and parking lots. The following will be minimized: 1. Thrash and debris from general site hotel/villa use, and from drivers & pedestrians 2. Sediments and soils contaminated with oils and similar products associated with automobiles. Landscaping Landscaping of the slopes and other parts of the site will be incorporated into the plans. To expeditiously achieve plant establishment to reduce erosion, landscaping will consist of both native and non-native plants. The irrigation system will be closely monitored to reduce over irrigation and thus protect the manufactured slopes from being destabilized due to over watering and over saturation of the soil. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 11 Maintenance of vegetated or landscaped areas (street sidewalks, street landscaped islands or slopes) and other planted areas should be the responsibility of the owner or corporation handling the property. This owner will develop a schedule and funding scheme when the project is turned over by the contractor/developer to them. TABLE 5. Permanent and Operational source control measures Potential source of runoff pollutants Permanent Source control BMPs Operational source control BMPs 1. On-site storm drain inlets Mark inlets with the words “NO DUMPING!” ƒ Maintain periodically repaint or replace inlet markings ƒ Include the following in lease agreements: “Tenant shall not allow anyone to discharge anything to storm drains”. 2. Refuse areas ƒ Roofs/ awnings shall be provided ƒ Trash storage pad is paved ƒ Trash container is walled ƒ Signs will be posted on or near dumpsters with the words “Do not dump hazardous materials here” ƒ Dumpsters will be handled by hired waste management company ƒ Maintain and clean periodically ƒ Prohibit/prevent dumping of liquid or hazardous wastes. 3. Plazas, Park, street and parking lot ƒ Sign with the words “NO LITTERING”. ƒ “TRASH BINS” signs nearby trash bins. ƒ Covered Trash bins with plastic bag inside located strategically. ƒ Street Sweeping. ƒ Maintain periodically repaint or replace sign markings every 6 months. ƒ Street sweeping frequency bi- weekly or no less than that of City of Carlsbad. ƒ Washwater containing any cleaning agent/degreaser shall be collected and discharge to the sanitary sewer and not discharged to a stormdrain. 4. Pools, Spas, ponds, decorative fountains, and other water features. ƒ The pools will be plumbed to the sanitary sewer and will be made according to local requirements. ƒ Control algae with chlorine or sodium bromide ƒ Do not discharge pool water to a street or storm drain ƒ Call local wastewater treatment plant for further CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 12 guidance on flow rate restrictions. ƒ Refer to SC-72 “Fountain and Pool Maintenance”. CASQA Handbook 5. Landscape/ Outdoor Pesticide use ƒ Design landscaping to minimize irrigation and runoff, to surface promote infiltration ƒ Where landscape areas are used to retain or detain Stormwater, a native Californian saturated soil tolerant vegetation type is used. ƒ Maintain landscaping using minimum or no pesticides. ƒ Refer to SC-41 “Building and Grounds Maintenance”. CASQA Handbook. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 13 V. Low Impact Development (LID) Design Strategies 5.1. Description of site activities and potential sources of pollutants To minimize Stormwater-related impacts, the following design principles are applied to the layout of the site: • Detain and retain runoff throughout the site This project implements Bio-retention Swale with underdrain pipes connected to an existing riser. Bio-retention swale can convey high flows while percolating and treating lower flows. At the Sales Building two bio-retention facilities are used to treat the storm water coming from the roof and one location of bio-retention swale at the driveway entrance. An LID facility must be selected to treat the project pollutants of concern identified in Table 1 “Project Pollutants of Concern”. A treatment control facility with high or medium pollutant removal efficiency for the project’s most significant pollutant of concern shall be selected. TABLE 6. Group of Pollutants and relative effectiveness of treatment facilities Source: County of San Diego SUSMP – January 2011 5.2. Approach to Integrated LID Optimize the site layout This project is designed to have buildings and circulation to minimize the amount of roofs and paving. Use of Pervious Surfaces and drain impervious area to Engineered Bio-retention Turf associated with landscape is widely used where possible in this project. There is a wide and rather flat Bio-swale adjacent to the toe of slope; this area is used as a storm water retaining facility, allows it drain slowly and also is used to convey big flows coming from the site. This area has 12” underdrain pipe with 12” stand pipes with atrium grate every 50 feet and have top of grates higher than the bio-swale finish grade. This under drain pipe and the stand pipes will reduce the water level on the bio-swale faster during the large storm event. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 14 Drainage Management Areas (DMAs) The entire project area is divided into individual Drainage Management Areas (DMAs). This delineation was done by following grade breaks and roof ridge lines. In general, there are 3 outfalls in the post-development; Tributary area basin 1 represents the flow that drains to the OUTFALL 1 (south). Tributary area basin 2 drains to OUTFALL 2 (southeast), and Basin 3 drains to OUTFALL 3 (east). These three tributary areas are divided into sub-areas based on the proposed surface shape and the existing topography. Those outfalls ultimately will confluence at downstream in an existing 5x4 storm drain clean out. Integrated Management Practice (IMP) All run-offs from impervious surface will be treated to an Integrated Management Practice (IMP). In this project we chose Bio-retention as the storm water treatment facility. OUTFALL 1 drains onto Integrated Management Practice number I and is labeled as IMP I. Outfall 2 drains onto IMP II. The Sales Building DMAs are divided by 3 such as: the Sales Building roof is treated by IMP III and IV, the sales building drive entrance is treated by IMP V. These DMAs eventually drain into OUTFALL 3 at existing 3X3 grated inlet box. Based on the peak flow-rates that drain into the IMPs, IMP I and II handle a very big 100 year storm return period, therefore 12” perforated under drain pipe with 12” riser at every 50 feet is provided to drain the runoff as mentioned above. Earthen channel is made to ensure the large amount of storm run-off will not spreading beyond the designated swale area or property line. Emergency spillway is provided at downstream to handle the storm incase the existing 48” riser fail. The peak-flow rates at IMP III, IV, and V are considered small since its generated from area relative smaller than IMP I and II, therefore 4” perforated under drain pipe with 6” cleanout pipe are adequate to avoid the water level in the bio-retention overflowing the top of the pond. 5.3. Integrated LID Design There are three outfalls for this project Labeled as OUTFALL 1, 2 and 3. OUTFALL 1 has bio-retention swale to treat approximately 330,000 square feet of area and labeled the bio-retention as IMP I. OUTFALL 2 also has bio-retention swale to treat approximately 190,700 sqft. site area and labeled the bio-retention as IMP II. OUTFALL 3 treated the storm water into 3 individual bio-retention facilities called as IMP III, IMP IV and IMP V. The design documentation for delineation of the pervious area and impervious area is provided in attachment C. Will this project be utilizing the unified LID design procedure as described in chapter 4 of the Local SUSMP? (If yes, please document in Attachment D following the steps in Chapter 4 of the County SUSMP) Yes No If the project is not utilizing the unified LID design procedure, please describe how the alternative treatment facilities will comply with applicable LID criteria, storm water treatment criteria, and hydromodification management criteria. CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 15 • Indicate the project pollutants of concern (POCs). Table 7. Grouping of Potential Pollutants of Concern (POCs) by fate during stormwater treatment Pollutant Check Project Specific POCs Coarse Sediment and Trash Pollutants that tend to associate with fine particles during treatment Pollutants that tend to be dissolved following treatment Sediment X X Nutrients X X Heavy Metals X Organic Compounds X Trash & Debris X Oxygen Demanding X Bacteria X Oil & Grease X Pesticides X CARLSBAD RANCH PA 5 – MARBRISA PHASE II SWMP – JANUARY 2012 16 VI. Operation and Maintenance These Stormwater treatment facilities (bio-retention) are as part of the project subject to be verified for effectiveness and proper performance. As discuss in Chapter V section 5.3, these LIDs are identified as follows: Table 8. Project Specific LID and TC-BMPS BMP Identifier* LID or TC-BMP Type BMP Pollutant of Concern Efficiency (H,M,L) – Table 11 Final Construction Date (to be completed by County inspector) Final Construction Inspector Name (to be completed by County inspector) IMP I Bio-retention H, H, M IMP II Bio-retention H, H, M IMP III Bio-retention H, H, M IMP IV Bio-retention H, H, M IMP V Bio-retention H, H, M Maintenance will be under the guidelines as shown in the “STORMWATER MAINTENANCE PLAN” by the County of San Diego DPW Land Development Guidelines, and the City of Carlsbad JURMP. The owners of the proposed development will eventually be responsible for the maintenance and inspection of the Post-Construction BMP’s. An approved contractor will be hired to pump or clean any inlet or inline treatment manholes of the trapped stormwater wastes. Said contractor will haul wastes to an approved disposal site. Stormwater sampling and monitoring will be the responsibility of the owners. They will also be responsible in determining the sources and locations of pollution if discovered during sampling and monitoring. The owners will need to assess an annual maintenance and inspection/monitoring fee for the upkeep of any Post Construction BMP’s. For landscaping maintenance, the owner will monitor the compliance and maintenance of all vegetated areas as an efficient post construction BMPs. See also, Landscaping under Source Control BMP for more details. Responsible Party for Long-term Maintenance: Identify the parties responsible for long-term maintenance of the BMPs identified above and Source Controls specified in Attachment B. Include the appropriate written agreement with the entities responsible for O&M in Attachment F. Please see Chapter 5 “Private Ownership and Maintenance” on page 94 of the County SUSMP for appropriate maintenance mechanisms. Name: Timothy J. Stripe Company Name: Grand Pacific Resorts, INC. Phone Number: (760)431-8500 Street Address: 5900 Pasteur Court, Suite 200 City/State/Zip: Carlsbad, CA 92008 Email Address: tstripe@grandpacificresorts.com ATTACHMENT 2 BACKUP FOR PDP HYDROMODIFICATION CONTROL MEASURES [This is the cover sheet for Attachment 2.] Indicate which Items are Included behind this cover sheet: Attachment Sequence Contents Checklist Attachment 2a Hydromodification Management Exhibit (Required) ◻ Included See Hydromodification Management Exhibit Checklist on the back of this Attachment cover sheet. Attachment 2b Management of Critical Coarse Sediment Yield Areas (WMAA Exhibit is required, additional analyses are optional) See Section 6.2 of the BMP Design Manual. ◻ Exhibit showing project drainage boundaries marked on WMAA Critical Coarse Sediment Yield Area Map (Required) Optional analyses for Critical Coarse Sediment Yield Area Determination ◻ Appendix H.6.1 Verification of Geomorphic Landscape Units Onsite ◻ Appendix H.7 Downstream Systems Sensitivity to Coarse Sediment Attachment 2c Geomorphic Assessment of Receiving Channels (Optional) See Section 6.3.4 of the BMP Design Manual. ◻ Not performed ◻ Included Attachment 2d Flow Control Facility Design and Structural BMP Drawdown Calculations (Required) See Chapter 6 and Appendix G of the BMP Design Manual ◻ Included Use this checklist to ensure the required information has been included on the Hydromodification Management Exhibit: The Hydromodification Management Exhibit must identify: ◻ Underlying hydrologic soil group ◻ Approximate depth to groundwater ◻ Existing natural hydrologic features ( watercourses, seeps, springs, wetlands) ◻ Critical coarse sediment yield areas to be protected (if present) ◻ Existing topography ◻ Existing and proposed site drainage network and connections to drainage offsite ◻ Proposed grading ◻ Proposed impervious features ◻ Proposed design features and surface treatments used to minimize imperviousness ◻ Point(s) of Compliance (POC) for Hydromodification Management ◻ Existing and proposed drainage boundary and drainage area to each POC (when necessary, create separate exhibits for pre-development and post-project conditions) ◻ Structural BMPs for hydromodification management (identify location, type of BMP, and size/detail) HYDROMODIFICATION EXHIBIT VILLA 67 · · · · Potential Critcial Coarse Sediment Yield Area Data From WMAA Map Legend MarBrisa Cir PCCSYA Project Site 2000 ft N ➤➤ N Data CSUMB SFML, CA OPCData CSUMB SFML, CA OPC 1 [TITLE] 2 ;;Project Title/Notes 3 4 [OPTIONS] 5 ;;Option Value 6 FLOW_UNITS CFS 7 INFILTRATION GREEN_AMPT 8 FLOW_ROUTING KINWAVE 9 LINK_OFFSETS DEPTH 10 MIN_SLOPE 0 11 ALLOW_PONDING NO 12 SKIP_STEADY_STATE NO 13 14 START_DATE 01/03/1951 15 START_TIME 16:00:00 16 REPORT_START_DATE 01/03/1951 17 REPORT_START_TIME 16:00:00 18 END_DATE 05/23/2008 19 END_TIME 23:00:00 20 SWEEP_START 01/01 21 SWEEP_END 12/31 22 DRY_DAYS 0 23 REPORT_STEP 01:00:00 24 WET_STEP 01:00:00 25 DRY_STEP 01:00:00 26 ROUTING_STEP 0:01:00 27 28 INERTIAL_DAMPING PARTIAL 29 NORMAL_FLOW_LIMITED BOTH 30 FORCE_MAIN_EQUATION H-W 31 VARIABLE_STEP 0.75 32 LENGTHENING_STEP 0 33 MIN_SURFAREA 12.557 34 MAX_TRIALS 8 35 HEAD_TOLERANCE 0.005 36 SYS_FLOW_TOL 5 37 LAT_FLOW_TOL 5 38 MINIMUM_STEP 0.5 39 THREADS 1 40 41 [EVAPORATION] 42 ;;Data Source Parameters 43 ;;-------------- ---------------- 44 MONTHLY .094 .115 .168 .202 .225 .232 .254 .25 .207 .167 .119 .09 45 DRY_ONLY NO 46 47 [RAINGAGES] 48 ;;Name Format Interval SCF Source 49 ;;-------------- --------- ------ ------ ---------- 50 Oceanside INTENSITY 1:00 1.0 FILE "R:\Rain gage dat\ALERT station at Oceanside (Sensor ID 67) .dat" oceanside IN 51 52 [SUBCATCHMENTS] 53 ;;Name Rain Gage Outlet Area %Imperv Width %Slope CurbLen SnowPack 54 ;;-------------- ---------------- ---------------- -------- -------- -------- -------- -------- ---------------- 55 Basin-A-1 Oceanside Outfall-A .636 0 1215 30 0 56 Basin-A-2 Oceanside Outfall-A 7.421 8.4 1352 5 0 57 Basin-A-4 Oceanside Outfall-A 1.968 7.6 1224 40 0 58 Basin-A-3 Oceanside Outfall-A 11.052 62.2 10214 1.5 0 59 Basin-A-5 Oceanside Outfall-A .435 0 1176 40 0 60 61 [SUBAREAS] 62 ;;Subcatchment N-Imperv N-Perv S-Imperv S-Perv PctZero RouteTo PctRouted 63 ;;-------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 64 Basin-A-1 0.012 0.15 0.05 0.10 25 OUTLET 65 Basin-A-2 0.012 0.15 0.05 0.10 25 OUTLET 66 Basin-A-4 0.012 0.15 0.05 0.10 25 OUTLET 67 Basin-A-3 0.012 0.15 0.05 0.10 25 OUTLET 68 Basin-A-5 0.012 0.15 0.05 0.10 25 OUTLET 69 70 [INFILTRATION] 71 ;;Subcatchment Suction Ksat IMD 72 ;;-------------- ---------- ---------- ---------- 73 Basin-A-1 3 0.2 0.31 74 Basin-A-2 3 0.2 0.31 75 Basin-A-4 3 0.2 0.31 76 Basin-A-3 3 0.2 0.31 77 Basin-A-5 3 0.2 0.31 78 79 [OUTFALLS] 80 ;;Name Elevation Type Stage Data Gated Route To 81 ;;-------------- ---------- ---------- ---------------- -------- ---------------- 82 Outfall-A 0 FREE NO 83 84 [REPORT] 85 ;;Reporting Options 86 INPUT NO 87 CONTROLS NO 88 SUBCATCHMENTS ALL 89 NODES ALL 90 LINKS ALL 91 92 [TAGS] 93 94 [MAP] 95 DIMENSIONS 6232335.918 1991705.580 6240607.852 1996197.100 96 Units None 97 98 [COORDINATES] 99 ;;Node X-Coord Y-Coord 100 ;;-------------- ------------------ ------------------ 101 Outfall-A 6238664.951 1992925.065 102 103 [VERTICES] 104 ;;Link X-Coord Y-Coord 105 ;;-------------- ------------------ ------------------ 106 107 [Polygons] 108 ;;Subcatchment X-Coord Y-Coord 109 ;;-------------- ------------------ ------------------ 110 Basin-A-1 6236111.837 1994414.026 111 Basin-A-1 6236131.911 1994338.749 112 Basin-A-1 6236141.948 1994386.424 113 Basin-A-1 6236172.059 1994401.480 114 Basin-A-1 6236189.623 1994429.081 115 Basin-A-1 6236239.808 1994519.414 116 Basin-A-1 6236247.336 1994411.517 117 Basin-A-1 6236289.992 1994439.118 118 Basin-A-1 6236417.963 1994446.646 119 Basin-A-1 6236475.675 1994476.757 120 Basin-A-1 6236433.018 1994516.904 121 Basin-A-1 6236345.195 1994531.960 122 Basin-A-1 6236292.502 1994554.543 123 Basin-A-1 6236259.882 1994695.060 124 Basin-A-1 6236267.409 1994770.336 125 Basin-A-1 6236302.539 1994810.484 126 Basin-A-1 6236342.686 1994890.779 127 Basin-A-1 6236475.675 1994672.477 128 Basin-A-1 6236545.934 1994677.495 129 Basin-A-1 6236548.443 1994790.410 130 Basin-A-1 6236510.805 1994868.196 131 Basin-A-1 6236543.425 1994938.455 132 Basin-A-1 6236603.646 1994910.853 133 Basin-A-1 6236698.997 1995013.732 134 Basin-A-1 6236739.144 1995056.389 135 Basin-A-1 6236869.624 1995089.009 136 Basin-A-1 6236927.337 1995176.832 137 Basin-A-1 6237040.252 1995314.839 138 Basin-A-1 6237052.798 1995332.404 139 Basin-A-1 6237118.038 1995339.931 140 Basin-A-1 6237188.296 1995339.931 141 Basin-A-1 6237331.322 1995307.311 142 Basin-A-1 6237680.105 1995211.961 143 Basin-A-1 6237800.548 1995211.961 144 Basin-A-1 6237853.242 1995194.396 145 Basin-A-1 6237873.316 1995239.562 146 Basin-A-1 6237798.039 1995272.182 147 Basin-A-1 6237552.135 1995294.765 148 Basin-A-1 6237278.629 1995395.134 149 Basin-A-1 6237077.890 1995425.245 150 Basin-A-1 6236932.355 1995299.784 151 Basin-A-1 6236867.115 1995131.665 152 Basin-A-1 6236628.738 1995066.425 153 Basin-A-1 6236638.775 1995091.518 154 Basin-A-1 6236222.243 1995101.555 155 Basin-A-1 6236139.439 1994765.318 156 Basin-A-1 6236184.605 1994434.100 157 Basin-A-2 6236241.391 1994517.318 158 Basin-A-2 6236243.900 1994406.912 159 Basin-A-2 6236291.575 1994439.532 160 Basin-A-2 6236422.055 1994442.041 161 Basin-A-2 6236477.258 1994472.152 162 Basin-A-2 6236437.110 1994512.300 163 Basin-A-2 6236389.435 1994522.337 164 Basin-A-2 6236334.232 1994534.883 165 Basin-A-2 6236294.084 1994547.429 166 Basin-A-2 6236304.121 1994587.577 167 Basin-A-2 6236263.974 1994682.927 168 Basin-A-2 6236271.501 1994760.714 169 Basin-A-2 6236304.121 1994800.861 170 Basin-A-2 6236339.251 1994888.684 171 Basin-A-2 6236474.749 1994667.872 172 Basin-A-2 6236550.026 1994672.891 173 Basin-A-2 6236555.044 1994793.333 174 Basin-A-2 6236514.897 1994868.610 175 Basin-A-2 6236552.535 1994933.850 176 Basin-A-2 6236612.757 1994906.249 177 Basin-A-2 6236753.273 1995054.293 178 Basin-A-2 6236878.735 1995079.386 179 Basin-A-2 6236901.318 1995119.533 180 Basin-A-2 6237009.215 1995257.541 181 Basin-A-2 6237069.436 1995327.799 182 Basin-A-2 6237169.805 1995337.836 183 Basin-A-2 6237285.230 1995315.253 184 Basin-A-2 6237415.710 1995277.615 185 Basin-A-2 6237616.448 1995219.902 186 Basin-A-2 6237714.308 1995209.866 187 Basin-A-2 6237809.659 1995209.866 188 Basin-A-2 6237859.843 1995199.829 189 Basin-A-2 6237910.028 1995184.773 190 Basin-A-2 6237915.046 1995162.190 191 Basin-A-2 6238030.471 1995167.209 192 Basin-A-2 6238035.489 1995112.006 193 Basin-A-2 6237897.482 1995099.459 194 Basin-A-2 6237892.463 1995066.839 195 Basin-A-2 6237784.566 1995011.636 196 Basin-A-2 6237794.603 1994941.378 197 Basin-A-2 6237807.150 1994938.869 198 Basin-A-2 6237824.714 1994843.518 199 Basin-A-2 6237839.770 1994841.009 200 Basin-A-2 6237859.843 1994750.677 201 Basin-A-2 6237751.947 1994720.566 202 Basin-A-2 6237767.002 1994667.872 203 Basin-A-2 6237797.113 1994630.234 204 Basin-A-2 6237794.603 1994615.178 205 Basin-A-2 6237779.548 1994615.178 206 Basin-A-2 6237789.585 1994590.086 207 Basin-A-2 6237809.659 1994585.067 208 Basin-A-2 6237812.168 1994537.392 209 Basin-A-2 6237797.113 1994522.337 210 Basin-A-2 6237812.168 1994469.643 211 Basin-A-2 6237842.279 1994462.115 212 Basin-A-2 6237789.585 1994447.060 213 Basin-A-2 6237701.762 1994424.477 214 Basin-A-2 6237591.356 1994399.385 215 Basin-A-2 6237450.839 1994331.635 216 Basin-A-2 6237363.016 1994251.340 217 Basin-A-2 6237257.628 1994218.720 218 Basin-A-2 6237227.518 1994186.100 219 Basin-A-2 6237189.879 1994171.045 220 Basin-A-2 6237164.787 1994161.008 221 Basin-A-2 6237124.639 1994145.952 222 Basin-A-2 6237097.038 1994138.425 223 Basin-A-2 6237061.909 1994133.406 224 Basin-A-2 6237019.252 1994123.369 225 Basin-A-2 6236984.122 1994113.332 226 Basin-A-2 6236946.484 1994108.314 227 Basin-A-2 6236916.373 1994103.296 228 Basin-A-2 6236876.226 1994103.296 229 Basin-A-2 6236856.152 1994105.805 230 Basin-A-2 6236831.059 1994115.842 231 Basin-A-2 6236805.967 1994125.879 232 Basin-A-2 6236773.347 1994138.425 233 Basin-A-2 6236735.709 1994138.425 234 Basin-A-2 6236698.070 1994120.860 235 Basin-A-2 6236670.469 1994093.259 236 Basin-A-2 6236442.129 1994080.712 237 Basin-A-2 6236424.564 1994105.805 238 Basin-A-2 6236105.892 1994208.683 239 Basin-A-2 6236110.911 1994223.739 240 Basin-A-2 6236143.531 1994336.654 241 Basin-A-2 6236156.077 1994394.366 242 Basin-A-4 6238659.296 1993746.276 243 Basin-A-4 6238611.621 1993989.672 244 Basin-A-4 6238591.547 1993989.672 245 Basin-A-4 6238553.909 1993992.181 246 Basin-A-4 6238518.779 1993992.181 247 Basin-A-4 6238466.086 1993992.181 248 Basin-A-4 6238435.975 1993992.181 249 Basin-A-4 6238405.864 1993992.181 250 Basin-A-4 6238360.698 1993992.181 251 Basin-A-4 6238340.624 1993999.709 252 Basin-A-4 6238330.587 1994009.745 253 Basin-A-4 6238345.643 1994022.292 254 Basin-A-4 6238318.041 1994044.875 255 Basin-A-4 6238290.440 1994042.365 256 Basin-A-4 6238257.820 1994042.365 257 Basin-A-4 6238245.273 1994077.495 258 Basin-A-4 6238257.820 1994110.115 259 Basin-A-4 6238245.273 1994115.133 260 Basin-A-4 6238227.709 1994105.096 261 Basin-A-4 6238205.126 1994125.170 262 Basin-A-4 6238202.617 1994157.790 263 Basin-A-4 6238222.690 1994180.373 264 Basin-A-4 6238222.690 1994207.975 265 Basin-A-4 6238212.653 1994215.502 266 Basin-A-4 6238210.144 1994270.705 267 Basin-A-4 6238142.395 1994288.270 268 Basin-A-4 6238119.812 1994386.130 269 Basin-A-4 6237994.351 1994343.473 270 Basin-A-4 6237843.797 1994318.381 271 Basin-A-4 6237705.789 1994288.270 272 Basin-A-4 6237577.819 1994250.631 273 Basin-A-4 6237422.246 1994147.753 274 Basin-A-4 6237286.748 1994069.967 275 Basin-A-4 6237151.250 1994012.255 276 Basin-A-4 6237010.733 1993972.107 277 Basin-A-4 6236880.253 1993964.579 278 Basin-A-4 6236852.651 1993962.070 279 Basin-A-4 6236822.541 1993949.524 280 Basin-A-4 6236782.393 1993914.395 281 Basin-A-4 6236782.393 1993849.155 282 Basin-A-4 6236835.087 1993846.646 283 Basin-A-4 6236840.105 1993859.192 284 Basin-A-4 6236850.142 1993884.284 285 Basin-A-4 6237151.250 1993926.941 286 Basin-A-4 6237171.323 1993899.339 287 Basin-A-4 6237256.637 1993936.978 288 Basin-A-4 6237314.349 1993972.107 289 Basin-A-4 6237389.626 1994019.782 290 Basin-A-4 6237497.523 1994069.967 291 Basin-A-4 6237590.365 1994102.587 292 Basin-A-4 6237693.243 1994135.207 293 Basin-A-4 6237788.594 1994152.772 294 Basin-A-4 6237876.417 1994137.716 295 Basin-A-4 6237976.786 1994102.587 296 Basin-A-4 6238047.044 1994052.402 297 Basin-A-4 6238197.598 1993904.358 298 Basin-A-4 6238225.200 1993939.487 299 Basin-A-4 6238282.912 1993884.284 300 Basin-A-4 6238383.281 1993771.369 301 Basin-A-4 6238415.901 1993663.472 302 Basin-A-4 6238413.392 1993517.937 303 Basin-A-4 6238548.890 1993515.427 304 Basin-A-4 6238646.750 1993588.195 305 Basin-A-4 6238684.389 1993663.472 306 Basin-A-4 6238641.732 1993681.036 307 Basin-A-4 6238641.732 1993751.295 308 Basin-A-4 6238659.296 1993748.786 309 Basin-A-3 6238652.689 1993686.495 310 Basin-A-3 6238695.346 1993676.458 311 Basin-A-3 6238662.726 1993583.616 312 Basin-A-3 6238542.283 1993505.830 313 Basin-A-3 6238426.858 1993520.886 314 Basin-A-3 6238404.275 1993724.133 315 Basin-A-3 6238366.637 1993806.938 316 Basin-A-3 6238243.684 1993929.890 317 Basin-A-3 6238213.574 1993894.761 318 Basin-A-3 6238060.511 1994042.805 319 Basin-A-3 6237914.975 1994133.137 320 Basin-A-3 6237736.820 1994140.665 321 Basin-A-3 6237493.425 1994067.898 322 Basin-A-3 6237184.790 1993894.761 323 Basin-A-3 6237167.225 1993929.890 324 Basin-A-3 6236861.099 1993894.761 325 Basin-A-3 6236863.608 1993844.576 326 Basin-A-3 6236800.878 1993847.085 327 Basin-A-3 6236788.331 1993919.853 328 Basin-A-3 6236851.062 1993962.510 329 Basin-A-3 6236991.579 1993972.547 330 Basin-A-3 6237172.244 1994012.694 331 Basin-A-3 6237367.963 1994108.045 332 Basin-A-3 6237611.359 1994266.127 333 Basin-A-3 6237829.662 1994316.311 334 Basin-A-3 6238113.204 1994376.533 335 Basin-A-3 6238073.057 1994519.559 336 Basin-A-3 6237588.776 1994421.699 337 Basin-A-3 6237302.723 1994243.544 338 Basin-A-3 6237137.114 1994160.739 339 Basin-A-3 6236861.099 1994103.027 340 Basin-A-3 6236728.110 1994140.665 341 Basin-A-3 6236657.852 1994105.536 342 Basin-A-3 6236492.242 1994100.518 343 Basin-A-3 6236489.733 1993934.908 344 Basin-A-3 6236662.870 1993949.964 345 Basin-A-3 6236728.110 1993914.835 346 Basin-A-3 6236745.675 1993811.956 347 Basin-A-3 6236745.675 1993781.845 348 Basin-A-3 6236708.036 1993786.864 349 Basin-A-3 6236690.472 1993771.809 350 Basin-A-3 6236715.564 1993731.661 351 Basin-A-3 6236552.464 1993769.299 352 Basin-A-3 6236537.409 1993686.495 353 Basin-A-3 6236891.210 1993239.852 354 Basin-A-3 6237543.609 1992983.911 355 Basin-A-3 6237664.052 1992896.088 356 Basin-A-3 6237842.208 1992860.958 357 Basin-A-3 6238123.241 1992936.235 358 Basin-A-3 6238298.887 1993096.826 359 Basin-A-3 6238472.024 1993244.870 360 Basin-A-3 6238657.707 1993305.092 361 Basin-A-3 6238790.696 1993658.893 362 Basin-A-3 6238740.512 1993673.949 363 Basin-A-3 6238727.966 1993638.819 364 Basin-A-3 6238712.910 1993646.347 365 Basin-A-3 6238717.929 1993663.912 366 Basin-A-3 6238712.910 1993694.022 367 Basin-A-3 6238690.327 1993686.495 368 Basin-A-3 6238675.272 1993751.735 369 Basin-A-3 6238652.689 1993756.753 370 Basin-A-3 6238650.179 1993686.495 371 Basin-A-5 6236540.503 1993663.454 372 Basin-A-5 6236605.743 1993603.233 373 Basin-A-5 6236723.677 1993425.077 374 Basin-A-5 6236876.740 1993241.904 375 Basin-A-5 6237032.312 1993176.664 376 Basin-A-5 6237534.158 1992978.435 377 Basin-A-5 6237669.656 1992885.593 378 Basin-A-5 6237965.745 1992873.047 379 Basin-A-5 6238128.845 1992950.833 380 Basin-A-5 6238337.111 1993128.988 381 Basin-A-5 6238480.137 1993246.922 382 Basin-A-5 6238658.292 1993309.653 383 Basin-A-5 6238577.997 1993076.295 384 Basin-A-5 6238520.285 1993103.896 385 Basin-A-5 6238417.406 1993008.545 386 Basin-A-5 6238206.631 1992812.826 387 Basin-A-5 6237908.033 1992707.438 388 Basin-A-5 6237689.730 1992732.530 389 Basin-A-5 6237411.206 1992857.992 390 Basin-A-5 6236899.323 1993063.748 391 Basin-A-5 6236781.389 1993116.442 392 Basin-A-5 6236665.965 1993219.321 393 Basin-A-5 6236608.252 1993329.727 394 Basin-A-5 6236550.540 1993485.299 395 Basin-A-5 6236517.920 1993638.362 396 Basin-A-5 6236535.485 1993678.510 397 398 [SYMBOLS] 399 ;;Gage X-Coord Y-Coord 400 ;;-------------- ------------------ ------------------ 401 Oceanside 6236213.434 1995515.844 402 403 404 [BACKDROP] 405 FILE "Q:\14\14100\Prelimgp\Prelimgp2\swmm\14100-PRE-BackGround.wmf" 406 DIMENSIONS 6232335.918 1991705.580 6240607.852 1996197.100 407 1 2 EPA STORM WATER MANAGEMENT MODEL - VERSION 5.1 (Build 5.1.012) 3 -------------------------------------------------------------- 4 5 6 ********************* 7 Rainfall File Summary 8 ********************* 9 Station First Last Recording Periods Periods Periods 10 ID Date Date Frequency w/Precip Missing Malfunc. 11 ------------------------------------------------------------------------------- 12 oceanside 08/28/1951 05/23/2008 60 min 9131 0 0 13 14 15 ********************************************************* 16 NOTE: The summary statistics displayed in this report are 17 based on results found at every computational time step, 18 not just on results from each reporting time step. 19 ********************************************************* 20 21 **************** 22 Analysis Options 23 **************** 24 Flow Units ............... CFS 25 Process Models: 26 Rainfall/Runoff ........ YES 27 RDII ................... NO 28 Snowmelt ............... NO 29 Groundwater ............ NO 30 Flow Routing ........... NO 31 Water Quality .......... NO 32 Infiltration Method ...... GREEN_AMPT 33 Starting Date ............ 01/03/1951 16:00:00 34 Ending Date .............. 05/23/2008 23:00:00 35 Antecedent Dry Days ...... 0.0 36 Report Time Step ......... 01:00:00 37 Wet Time Step ............ 01:00:00 38 Dry Time Step ............ 01:00:00 39 40 41 ************************** Volume Depth 42 Runoff Quantity Continuity acre-feet inches 43 ************************** --------- ------- 44 Total Precipitation ...... 1201.215 670.072 45 Evaporation Loss ......... 74.009 41.284 46 Infiltration Loss ........ 755.473 421.424 47 Surface Runoff ........... 417.299 232.781 48 Final Storage ............ 0.023 0.013 49 Continuity Error (%) ..... -3.795 50 51 52 ************************** Volume Volume 53 Flow Routing Continuity acre-feet 10^6 gal 54 ************************** --------- --------- 55 Dry Weather Inflow ....... 0.000 0.000 56 Wet Weather Inflow ....... 417.135 135.930 57 Groundwater Inflow ....... 0.000 0.000 58 RDII Inflow .............. 0.000 0.000 59 External Inflow .......... 0.000 0.000 60 External Outflow ......... 417.135 135.930 61 Flooding Loss ............ 0.000 0.000 62 Evaporation Loss ......... 0.000 0.000 63 Exfiltration Loss ........ 0.000 0.000 64 Initial Stored Volume .... 0.000 0.000 65 Final Stored Volume ...... 0.000 0.000 66 Continuity Error (%) ..... 0.000 67 68 69 *************************** 70 Subcatchment Runoff Summary 71 *************************** 72 73 --------------------------------------------------------------------------------------- ----------------- 74 Total Total Total Total Total Total Peak Runoff 75 Precip Runon Evap Infil Runoff Runoff Runoff Coeff 76 Subcatchment in in in in in 10^6 gal CFS 77 --------------------------------------------------------------------------------------- ----------------- 78 Basin-A-1 670.07 0.00 1.77 650.68 29.11 0.50 0.48 0.043 79 Basin-A-2 670.07 0.00 11.06 600.84 71.04 14.32 5.77 0.106 80 Basin-A-4 670.07 0.00 9.59 602.17 73.03 3.90 1.53 0.109 81 Basin-A-3 670.07 0.00 71.05 246.56 389.56 116.91 9.81 0.581 82 Basin-A-5 670.07 0.00 1.75 650.28 29.34 0.35 0.33 0.044 83 84 85 Analysis begun on: Thu Jan 16 14:52:41 2020 86 Analysis ended on: Thu Jan 16 14:53:23 2020 87 Total elapsed time: 00:00:42 1 [TITLE] 2 ;;Project Title/Notes 3 4 [OPTIONS] 5 ;;Option Value 6 FLOW_UNITS CFS 7 INFILTRATION GREEN_AMPT 8 FLOW_ROUTING KINWAVE 9 LINK_OFFSETS DEPTH 10 MIN_SLOPE 0 11 ALLOW_PONDING NO 12 SKIP_STEADY_STATE NO 13 14 START_DATE 01/03/1951 15 START_TIME 16:00:00 16 REPORT_START_DATE 01/03/1951 17 REPORT_START_TIME 16:00:00 18 END_DATE 05/23/2008 19 END_TIME 23:00:00 20 SWEEP_START 01/01 21 SWEEP_END 12/31 22 DRY_DAYS 0 23 REPORT_STEP 01:00:00 24 WET_STEP 01:00:00 25 DRY_STEP 01:00:00 26 ROUTING_STEP 0:01:00 27 RULE_STEP 00:00:00 28 29 INERTIAL_DAMPING PARTIAL 30 NORMAL_FLOW_LIMITED BOTH 31 FORCE_MAIN_EQUATION H-W 32 VARIABLE_STEP 0.75 33 LENGTHENING_STEP 0 34 MIN_SURFAREA 12.557 35 MAX_TRIALS 8 36 HEAD_TOLERANCE 0.005 37 SYS_FLOW_TOL 5 38 LAT_FLOW_TOL 5 39 MINIMUM_STEP 0.5 40 THREADS 1 41 42 [EVAPORATION] 43 ;;Data Source Parameters 44 ;;-------------- ---------------- 45 MONTHLY .94 .115 .168 .202 .225 .232 .254 .25 .207 .167 .119 .09 46 DRY_ONLY NO 47 48 [RAINGAGES] 49 ;;Name Format Interval SCF Source 50 ;;-------------- --------- ------ ------ ---------- 51 Oceanside INTENSITY 1:00 1.0 FILE "R:\_Storm\HydMOD\Rain gauge Data\Oceanside\ALERT station at Oceanside (Sensor ID 67) .dat" Oceanside IN 52 53 [SUBCATCHMENTS] 54 ;;Name Rain Gage Outlet Area %Imperv Width %Slope CurbLen SnowPack 55 ;;-------------- ---------------- ---------------- -------- -------- -------- -------- -------- ---------------- 56 Basin-A3-1 Oceanside Basin-A3-3 .287 0 235 50 0 57 Basin-A3-2 Oceanside IMP-3 0.171 0 454 50 0 58 Basin-A3-3 Oceanside IMP-3 3.475 58.7 357.4 1.5 0 59 Basin-A5-1 Oceanside Basin-A5-2 .209 0 329 50 0 60 Basin-A5-2 Oceanside IMP-5 0.956 78.1 980 5 0 61 Basin-A3-4 Oceanside IMP-3 0.357 0 233 45 0 62 Basin-A6-1 Oceanside Bioswale-6 11.026 71.2 10214 1.5 0 63 Basin-A6-2 Oceanside Bioswale-6 1.968 7.6 1224 40 0 64 Basin-A6-3 Oceanside Bioswale-6 .435 0 1176 40 0 65 Basin-A2-2 Oceanside IMP-2 2.007 92.6 2093 2 0 66 Basin-A2-3 Oceanside IMP-2 0.539 0 1357 45 0 67 Basin-A8-1 Oceanside IMP-8 0.529 76.7 90 1.5 0 68 Basin-A2-1 Oceanside Basin-A2-2 0.392 0 340 50 0 69 IMP-2 Oceanside Divider-IMP-2 0.084 0 72 0 0 70 IMP-5 Oceanside Divider-IMP-5 .032 0 70.2 0 0 71 IMP-8 oceanside Divider-IMP-8 0.009 0 25 0 0 72 Bioswale-6 Oceanside 7 .301 0 5 .75 0 73 IMP-3 Oceanside Divider-IMP-3 0.066 0 28 0 0 74 75 [SUBAREAS] 76 ;;Subcatchment N-Imperv N-Perv S-Imperv S-Perv PctZero RouteTo PctRouted 77 ;;-------------- ---------- ---------- ---------- ---------- ---------- ---------- ---------- 78 Basin-A3-1 0.012 0.15 0.05 0.10 25 OUTLET 79 Basin-A3-2 0.012 0.15 0.05 0.10 25 OUTLET 80 Basin-A3-3 0.012 0.15 0.05 0.10 25 OUTLET 81 Basin-A5-1 0.012 0.15 0.05 0.10 25 OUTLET 82 Basin-A5-2 0.012 0.15 0.05 0.10 25 OUTLET 83 Basin-A3-4 0.012 0.15 0.05 0.10 25 OUTLET 84 Basin-A6-1 0.012 0.15 0.05 0.10 25 OUTLET 85 Basin-A6-2 0.012 0.15 0.05 0.10 25 OUTLET 86 Basin-A6-3 0.012 0.15 0.05 0.10 25 OUTLET 87 Basin-A2-2 0.012 0.15 0.05 0.10 25 OUTLET 88 Basin-A2-3 0.012 0.15 0.05 0.10 25 OUTLET 89 Basin-A8-1 0.012 0.15 0.05 0.10 25 OUTLET 90 Basin-A2-1 0.012 0.15 0.05 0.10 25 OUTLET 91 IMP-2 0.012 0.15 0.05 0.10 25 OUTLET 92 IMP-5 0.012 0.15 0.05 0.10 25 OUTLET 93 IMP-8 0.012 0.15 0.05 0.10 25 OUTLET 94 Bioswale-6 0.012 0.15 0.05 0.10 25 OUTLET 95 IMP-3 0.012 0.05 0.05 0.1 25 OUTLET 96 97 [INFILTRATION] 98 ;;Subcatchment Param1 Param2 Param3 Param4 Param5 99 ;;-------------- ---------- ---------- ---------- ---------- ---------- 100 Basin-A3-1 3 0.2 0.31 101 Basin-A3-2 3 0.2 0.31 102 Basin-A3-3 3 0.2 0.31 103 Basin-A5-1 3 0.2 0.31 104 Basin-A5-2 3 0.2 0.31 105 Basin-A3-4 3 0.2 0.31 106 Basin-A6-1 3 0.15 0.31 107 Basin-A6-2 3 0.2 0.31 108 Basin-A6-3 3 0.2 0.31 109 Basin-A2-2 3 0.2 0.31 110 Basin-A2-3 3 0.2 0.31 111 Basin-A8-1 3 0.2 0.31 112 Basin-A2-1 3 0.2 0.31 113 IMP-2 3 0.2 0.31 114 IMP-5 3 0.2 0.31 115 IMP-8 3 0.2 0.31 116 Bioswale-6 3 0.2 0.31 117 IMP-3 3 0.2 0.31 118 119 [LID_CONTROLS] 120 ;;Name Type/Layer Parameters 121 ;;-------------- ---------- ---------- 122 Bioswale-6 BC 123 Bioswale-6 SURFACE 4 0.0 0.1 1.0 5 124 Bioswale-6 SOIL 18 .4 0.2 0.1 5 5 1.5 125 Bioswale-6 STORAGE 1 0.67 0 0 NO 126 Bioswale-6 DRAIN .1016 0.5 0 6 0 0 127 128 IMP-2 BC 129 IMP-2 SURFACE 4 0.0 0.1 0 5 130 IMP-2 SOIL 18 .4 0.2 0.1 5 5 1.5 131 IMP-2 STORAGE 18 0.67 0 0 NO 132 IMP-2 DRAIN 0.3628 0.5 0 6 0 0 133 134 IMP-3 BC 135 IMP-3 SURFACE 4 0.0 0.1 0 5 136 IMP-3 SOIL 18 .4 0.2 0.1 5 5 1.5 137 IMP-3 STORAGE 18 0.67 0 0 NO 138 IMP-3 DRAIN 0.25878 0.5 0 6 0 0 139 140 IMP-5 BC 141 IMP-5 SURFACE 4 0.0 0.1 0 5 142 IMP-5 SOIL 18 .4 0.2 0.1 5 5 1.5 143 IMP-5 STORAGE 18 0.67 0 0 NO 144 IMP-5 DRAIN 0.51137 0.5 0 6 0 0 145 146 IMP-8 BC 147 IMP-8 SURFACE 4 0.0 0.1 0 5 148 IMP-8 SOIL 18 .4 0.2 0.1 5 5 1.5 149 IMP-8 STORAGE 18 0.67 0 0 NO 150 IMP-8 DRAIN 0.86709 0.5 0 6 0 0 151 152 [LID_USAGE] 153 ;;Subcatchment LID Process Number Area Width InitSat FromImp ToPerv RptFile DrainTo FromPerv 154 ;;-------------- ---------------- ------- ---------- ---------- ---------- ---------- ---------- ------------------------ ---------------- ---------- 155 IMP-2 IMP-2 1 3659.04 0 0 0 0 * * 0 156 IMP-5 IMP-5 1 1393.92 0 0 0 0 * * 0 157 IMP-8 IMP-8 1 392.04 0 0 0 0 * * 0 158 Bioswale-6 Bioswale-6 1 13111.56 0 0 0 0 * * 0 159 IMP-3 IMP-3 1 2874.96 0 0 0 0 * * 0 160 161 [JUNCTIONS] 162 ;;Name Elevation MaxDepth InitDepth SurDepth Aponded 163 ;;-------------- ---------- ---------- ---------- ---------- ---------- 164 1 0 0 0 0 0 165 2 0 0 0 0 0 166 3 0 0 0 0 0 167 4 0 0 0 0 0 168 5 0 0 0 0 0 169 7 0 0 0 0 0 170 8 0 0 0 0 0 171 9 0 0 0 0 0 172 173 [OUTFALLS] 174 ;;Name Elevation Type Stage Data Gated Route To 175 ;;-------------- ---------- ---------- ---------------- -------- ---------------- 176 Outfall-A 0 FREE NO 177 178 [DIVIDERS] 179 ;;Name Elevation Diverted Link Type Parameters 180 ;;-------------- ---------- ---------------- ---------- ---------- 181 Divider-IMP-2 0 Bypass-IMP-2 CUTOFF .1271 5 0 0 0 182 Divider-Bioswale-6 0 Bypass-Bioswale-6 CUTOFF .1271 0 0 0 0 183 Divider-IMP-3 0 Bypass-IMP-3 CUTOFF 0.1271 2 0 0 0 184 Divider-IMP-5 0 Bypass-IMP-5 CUTOFF .1271 0 0 0 0 185 Divider-IMP-8 0 Bypass-IMP-8 CUTOFF .1271 0 0 0 0 186 187 [STORAGE] 188 ;;Name Elev. MaxDepth InitDepth Shape Curve Type/Params SurDepth Fevap Psi Ksat IMD 189 ;;-------------- -------- ---------- ----------- ---------- ---------------------------- --------- -------- -------- -------- 190 Storage-IMP-2 0 4 0 TABULAR Store-Curve-IMP-2 0 1 191 Storage-Bioswale-6 0 4 0 TABULAR Store-Curve-Bioswale-6 0 1 192 Storage-IMP-3 0 2 0 TABULAR Store-Curve-IMP-3 0 1 193 Storage-IMP-5 0 2 0 TABULAR Store-Curve-IMP-5 0 1 194 Storage-IMP-8 0 3 0 TABULAR Store-Curve-IMP-8 0 1 195 196 [CONDUITS] 197 ;;Name From Node To Node Length Roughness InOffset OutOffset InitFlow MaxFlow 198 ;;-------------- ---------------- ---------------- ---------- ---------- ---------- ---------- ---------- ---------- 199 Bypass-IMP-2 Divider-IMP-2 Storage-IMP-2 400 0.01 0 0 0 0 200 3 2 7 400 0.01 0 0 0 0 201 Underdrain-IMP-2 Divider-IMP-2 1 400 0.01 0 0 0 0 202 Underdrain-Bioswale-6 Divider-Bioswale-6 Outfall-A 400 0.01 0 0 0 0 203 Bypass-Bioswale-6 Divider-Bioswale-6 Storage-Bioswale-6 400 0.01 0 0 0 0 204 Bypass-IMP-3 Divider-IMP-3 Storage-IMP-3 400 0.01 0 0 0 0 205 Underdrain-IMP-3 Divider-IMP-3 1 400 0.01 0 0 0 0 206 6 3 4 400 0.01 0 0 0 0 207 7 4 5 400 0.01 0 0 0 0 208 8 5 1 400 0.01 0 0 0 0 209 Bypass-IMP-5 Divider-IMP-5 Storage-IMP-5 400 0.01 0 0 0 0 210 Underdrain-IMP-5 Divider-IMP-5 3 400 0.01 0 0 0 0 211 12 7 Divider-Bioswale-6 400 0.01 0 0 0 0 212 13 8 2 400 0.01 0 0 0 0 213 14 1 8 .05 0.01 0 0 0 0 214 15 9 5 400 0.01 0 0 0 0 215 Underdrain-IMP-8 Divider-IMP-8 9 400 0.01 0 0 0 0 216 Bypass-IMP-8 Divider-IMP-8 Storage-IMP-8 400 0.01 0 0 0 0 217 218 [OUTLETS] 219 ;;Name From Node To Node Offset Type QTable/Qcoeff Qexpon Gated 220 ;;-------------- ---------------- ---------------- ---------- --------------- ---------------- ---------- -------- 221 Outlet-IMP-2 Storage-IMP-2 1 0 TABULAR/DEPTH IMP-2 NO 222 Outlet-Bioswale-6 Storage-Bioswale-6 Outfall-A 0 TABULAR/DEPTH Bioswale-6 NO 223 Outlet-IMP-3 Storage-IMP-3 1 0 TABULAR/DEPTH IMP-3 NO 224 Outlet-IMP-5 Storage-IMP-5 3 0 TABULAR/HEAD IMP-5 NO 225 Outlet-IMP-8 Storage-IMP-8 9 0 TABULAR/DEPTH IMP-8 NO 226 227 [XSECTIONS] 228 ;;Link Shape Geom1 Geom2 Geom3 Geom4 Barrels Culvert 229 ;;-------------- ------------ ---------------- ---------- ---------- ---------- ---------- ---------- 230 Bypass-IMP-2 DUMMY 0 0 0 0 1 231 3 DUMMY 0 0 0 0 1 232 Underdrain-IMP-2 DUMMY 0 0 0 0 1 233 Underdrain-Bioswale-6 DUMMY 0 0 0 0 1 234 Bypass-Bioswale-6 DUMMY 0 0 0 0 1 235 Bypass-IMP-3 DUMMY 0 0 0 0 1 236 Underdrain-IMP-3 DUMMY 0 0 0 0 1 237 6 DUMMY 0 0 0 0 1 238 7 DUMMY 0 0 0 0 1 239 8 DUMMY 0 0 0 0 1 240 Bypass-IMP-5 DUMMY 0 0 0 0 1 241 Underdrain-IMP-5 DUMMY 0 0 0 0 1 242 12 DUMMY 0 0 0 0 1 243 13 DUMMY 0 0 0 0 1 244 14 DUMMY 0 0 0 0 1 245 15 DUMMY 0 0 0 0 1 246 Underdrain-IMP-8 DUMMY 0 0 0 0 1 247 Bypass-IMP-8 DUMMY 0 0 0 0 1 248 249 [CURVES] 250 ;;Name Type X-Value Y-Value 251 ;;-------------- ---------- ---------- ---------- 252 IMP-2 Rating 0 0 253 IMP-2 2 8.24 254 ; 255 Bioswale-6 Rating 0 0 256 Bioswale-6 .75 .69 257 Bioswale-6 1.75 1.77 258 Bioswale-6 2.75 3.14 259 Bioswale-6 3.75 45.92 260 Bioswale-6 4.75 123.19 261 ; 262 IMP-3 Rating 0 0 263 IMP-3 2 17.07 264 ; 265 IMP-5 Rating 0 0 266 IMP-5 1 7.96 267 ; 268 IMP-8 Rating 0 0 269 IMP-8 2 7.96 270 ; 271 Store-Curve-IMP-2 Storage 0 3671.5 272 Store-Curve-IMP-2 0.5 4047 273 Store-Curve-IMP-2 1.5 4835 274 Store-Curve-IMP-2 2.5 5613 275 ; 276 Store-Curve-Bioswale-6 Storage 0 10342 277 Store-Curve-Bioswale-6 4 18042 278 ; 279 Store-Curve-IMP-3 Storage 0 2895.5 280 Store-Curve-IMP-3 0.5 3178 281 Store-Curve-IMP-3 1.5 3788 282 Store-Curve-IMP-3 2.5 4441 283 ; 284 Store-Curve-IMP-5 Storage 0 1593 285 Store-Curve-IMP-5 1 2285 286 Store-Curve-IMP-5 1.8 2903 287 ; 288 Store-Curve-IMP-8 Storage 0 500 289 Store-Curve-IMP-8 2 750 290 291 [REPORT] 292 ;;Reporting Options 293 SUBCATCHMENTS ALL 294 NODES ALL 295 LINKS ALL 296 297 [TAGS] 298 299 [MAP] 300 DIMENSIONS -1470.588 0.000 11470.588 10000.000 301 Units None 302 303 [COORDINATES] 304 ;;Node X-Coord Y-Coord 305 ;;-------------- ------------------ ------------------ 306 1 4639.655 5158.089 307 2 5057.748 3320.500 308 3 5827.719 8094.321 309 4 4754.861 7510.730 310 5 4531.601 7104.588 311 7 8484.119 1337.825 312 8 4706.166 4057.332 313 9 4826.756 7175.168 314 Outfall-A 10428.296 2329.163 315 Divider-IMP-2 4134.172 5178.042 316 Divider-Bioswale-6 9263.715 1973.051 317 Divider-IMP-3 4872.997 5288.961 318 Divider-IMP-5 6451.542 7718.502 319 Divider-IMP-8 5192.493 7390.119 320 Storage-IMP-2 4210.780 4744.947 321 Storage-Bioswale-6 9648.701 2444.658 322 Storage-IMP-3 5317.613 4889.317 323 Storage-IMP-5 6337.825 7988.450 324 Storage-IMP-8 5115.496 7006.737 325 326 [VERTICES] 327 ;;Link X-Coord Y-Coord 328 ;;-------------- ------------------ ------------------ 329 330 [Polygons] 331 ;;Subcatchment X-Coord Y-Coord 332 ;;-------------- ------------------ ------------------ 333 Basin-A3-1 5101.143 8251.947 334 Basin-A3-1 5301.655 8313.096 335 Basin-A3-1 5382.713 8509.342 336 Basin-A3-1 5570.427 8695.633 337 Basin-A3-1 5846.308 8657.237 338 Basin-A3-1 5846.308 8520.718 339 Basin-A3-1 5810.756 8532.095 340 Basin-A3-1 5795.114 8488.011 341 Basin-A3-1 5776.627 8496.543 342 Basin-A3-1 5786.581 8539.205 343 Basin-A3-1 5692.725 8552.004 344 Basin-A3-1 5618.777 8524.984 345 Basin-A3-1 5637.264 8482.322 346 Basin-A3-1 5617.355 8473.790 347 Basin-A3-1 5596.024 8513.608 348 Basin-A3-1 5563.316 8495.121 349 Basin-A3-1 5495.057 8433.972 350 Basin-A3-1 5526.342 8394.154 351 Basin-A3-1 5509.278 8384.199 352 Basin-A3-1 5479.414 8418.329 353 Basin-A3-1 5368.493 8335.849 354 Basin-A3-1 5394.090 8296.031 355 Basin-A3-1 5193.578 8192.220 356 Basin-A3-1 5119.630 8162.356 357 Basin-A3-1 5101.143 8251.947 358 Basin-A3-2 5392.888 7158.688 359 Basin-A3-2 5229.350 6995.149 360 Basin-A3-2 5117.006 6912.669 361 Basin-A3-2 5098.519 6882.806 362 Basin-A3-2 5138.337 6478.938 363 Basin-A3-2 5257.791 6419.211 364 Basin-A3-2 5364.446 6352.374 365 Basin-A3-2 5496.699 6227.231 366 Basin-A3-2 5572.069 6254.251 367 Basin-A3-2 5634.640 6336.731 368 Basin-A3-2 5732.763 6326.776 369 Basin-A3-2 5496.699 6174.615 370 Basin-A3-2 5478.212 6180.303 371 Basin-A3-2 5382.933 6267.049 372 Basin-A3-2 5284.810 6338.153 373 Basin-A3-2 5166.779 6400.724 374 Basin-A3-2 5077.188 6422.055 375 Basin-A3-2 5047.325 6906.981 376 Basin-A3-2 5390.044 7162.954 377 Basin-A3-3 6330.518 6190.166 378 Basin-A3-3 6481.258 6252.737 379 Basin-A3-3 6666.127 6375.035 380 Basin-A3-3 6850.996 6463.203 381 Basin-A3-3 6833.931 6528.619 382 Basin-A3-3 6862.372 6531.463 383 Basin-A3-3 6893.658 6434.762 384 Basin-A3-3 7115.501 6520.086 385 Basin-A3-3 7263.396 6531.463 386 Basin-A3-3 7209.358 6594.034 387 Basin-A3-3 7229.267 6619.631 388 Basin-A3-3 7203.669 6702.111 389 Basin-A3-3 7161.007 6776.059 390 Basin-A3-3 7138.254 6889.825 391 Basin-A3-3 7286.149 6918.266 392 Basin-A3-3 7237.799 7046.252 393 Basin-A3-3 7212.202 7165.706 394 Basin-A3-3 7146.787 7148.641 395 Basin-A3-3 7132.566 7182.771 396 Basin-A3-3 7101.280 7185.615 397 Basin-A3-3 7084.215 7219.745 398 Basin-A3-3 7007.424 7208.368 399 Basin-A3-3 7013.112 7219.745 400 Basin-A3-3 6831.087 7174.239 401 Basin-A3-3 6828.243 7157.174 402 Basin-A3-3 6577.958 7111.668 403 Basin-A3-3 6563.738 7154.330 404 Basin-A3-3 6532.452 7151.486 405 Basin-A3-3 6529.608 7140.109 406 Basin-A3-3 6512.543 7114.512 407 Basin-A3-3 6452.816 7339.199 408 Basin-A3-3 6526.764 7350.575 409 Basin-A3-3 6515.387 7410.302 410 Basin-A3-3 6427.219 7452.965 411 Basin-A3-3 6381.713 7495.627 412 Basin-A3-3 6395.933 7529.756 413 Basin-A3-3 6449.972 7529.756 414 Basin-A3-3 6444.284 7492.782 415 Basin-A3-3 6535.296 7444.432 416 Basin-A3-3 6538.140 7626.457 417 Basin-A3-3 6418.686 7649.210 418 Basin-A3-3 6273.635 7620.769 419 Basin-A3-3 6051.792 7438.744 420 Basin-A3-3 6085.922 7401.770 421 Basin-A3-3 5807.196 7285.160 422 Basin-A3-3 5835.638 6770.371 423 Basin-A3-3 5841.326 6784.591 424 Basin-A3-3 5892.520 6807.344 425 Basin-A3-3 5901.053 6773.215 426 Basin-A3-3 5852.702 6778.903 427 Basin-A3-3 5878.300 6420.541 428 Basin-A3-3 5898.209 6420.541 429 Basin-A3-3 5938.027 6417.697 430 Basin-A3-3 5929.494 6366.503 431 Basin-A3-3 6066.013 6326.685 432 Basin-A3-3 6185.467 6184.478 433 Basin-A3-3 6253.726 6218.607 434 Basin-A3-3 6265.103 6164.569 435 Basin-A3-3 6492.634 6258.425 436 Basin-A3-3 6697.412 6397.788 437 Basin-A3-3 6853.840 6477.424 438 Basin-A5-1 6685.984 8468.784 439 Basin-A5-1 7042.924 8339.375 440 Basin-A5-1 7354.358 8306.668 441 Basin-A5-1 7436.838 8276.804 442 Basin-A5-1 7425.461 8221.344 443 Basin-A5-1 7402.708 8219.922 444 Basin-A5-1 6818.237 8291.025 445 Basin-A5-1 6684.562 8337.953 446 Basin-A5-1 6685.984 8465.940 447 Basin-A5-2 7137.474 8143.053 448 Basin-A5-2 6840.261 8192.825 449 Basin-A5-2 6717.963 8229.799 450 Basin-A5-2 6730.762 8043.508 451 Basin-A5-2 6629.795 8083.326 452 Basin-A5-2 6632.639 8128.832 453 Basin-A5-2 6580.022 8131.676 454 Basin-A5-2 6580.022 8074.793 455 Basin-A5-2 6651.126 8049.196 456 Basin-A5-2 6695.210 8025.021 457 Basin-A5-2 6715.119 7955.339 458 Basin-A5-2 6638.327 7934.008 459 Basin-A5-2 6690.944 7737.763 460 Basin-A5-2 6715.119 7739.185 461 Basin-A5-2 6713.697 7761.938 462 Basin-A5-2 6753.515 7770.470 463 Basin-A5-2 6760.625 7722.120 464 Basin-A5-2 7006.644 7771.892 465 Basin-A5-2 7009.488 7781.847 466 Basin-A5-2 7177.292 7817.399 467 Basin-A5-2 7184.402 7807.444 468 Basin-A5-2 7271.149 7830.197 469 Basin-A5-2 7282.525 7788.957 470 Basin-A5-2 7320.921 7787.535 471 Basin-A5-2 7329.454 7761.938 472 Basin-A5-2 7384.914 7767.626 473 Basin-A5-2 7373.538 7870.015 474 Basin-A5-2 7512.901 7942.541 475 Basin-A5-2 7515.745 7986.625 476 Basin-A5-2 7697.770 7998.002 477 Basin-A5-2 7702.036 8057.728 478 Basin-A5-2 7494.414 8076.215 479 Basin-A5-2 7426.154 8066.261 480 Basin-A5-2 7436.109 8117.455 481 Basin-A5-2 7134.630 8145.897 482 Basin-A5-2 6841.683 8194.247 483 Basin-A5-2 6720.807 8235.487 484 Basin-A3-4 4864.912 5796.124 485 Basin-A3-4 4887.666 5439.184 486 Basin-A3-4 4945.970 5433.496 487 Basin-A3-4 4937.438 5382.301 488 Basin-A3-4 5035.561 5352.438 489 Basin-A3-4 5099.554 5314.042 490 Basin-A3-4 5206.209 5205.965 491 Basin-A3-4 5258.826 5230.140 492 Basin-A3-4 5275.891 5177.523 493 Basin-A3-4 5536.130 5299.821 494 Basin-A3-4 5866.050 5490.379 495 Basin-A3-4 5851.829 5541.573 496 Basin-A3-4 5883.115 5548.684 497 Basin-A3-4 5898.758 5479.002 498 Basin-A3-4 5883.115 5459.093 499 Basin-A3-4 5804.901 5412.165 500 Basin-A3-4 5617.188 5299.821 501 Basin-A3-4 5412.410 5183.211 502 Basin-A3-4 5341.306 5160.458 503 Basin-A3-4 5197.677 5120.640 504 Basin-A3-4 4974.412 5097.887 505 Basin-A3-4 4960.191 5117.796 506 Basin-A3-4 4890.510 5140.549 507 Basin-A3-4 4883.399 5157.614 508 Basin-A3-4 4847.848 5780.481 509 Basin-A3-4 4859.224 5800.390 510 Basin-A3-4 4893.354 5814.611 511 Basin-A3-4 4907.575 5800.390 512 Basin-A3-4 4866.335 5793.280 513 Basin-A6-1 5903.701 3441.028 514 Basin-A6-1 6090.268 3403.715 515 Basin-A6-1 6103.594 3254.461 516 Basin-A6-1 5954.340 3118.534 517 Basin-A6-1 6039.628 3038.576 518 Basin-A6-1 6308.818 2657.446 519 Basin-A6-1 6543.360 2494.866 520 Basin-A6-1 7196.345 2220.346 521 Basin-A6-1 7460.204 2065.762 522 Basin-A6-1 7902.635 2089.749 523 Basin-A6-1 8177.155 2246.998 524 Basin-A6-1 8310.417 2420.239 525 Basin-A6-1 8518.306 2556.167 526 Basin-A6-1 8728.861 2625.463 527 Basin-A6-1 8878.114 2987.937 528 Basin-A6-1 8862.123 3059.898 529 Basin-A6-1 8816.814 3145.186 530 Basin-A6-1 8752.848 3193.161 531 Basin-A6-1 8734.191 3222.478 532 Basin-A6-1 8742.187 3153.182 533 Basin-A6-1 8792.827 3107.873 534 Basin-A6-1 8702.208 2947.958 535 Basin-A6-1 8459.671 2907.979 536 Basin-A6-1 8441.014 2963.949 537 Basin-A6-1 8385.044 3251.796 538 Basin-A6-1 8203.807 3454.355 539 Basin-A6-1 8131.846 3446.359 540 Basin-A6-1 7926.622 3640.922 541 Basin-A6-1 7702.741 3752.862 542 Basin-A6-1 7321.611 3678.235 543 Basin-A6-1 6895.172 3507.659 544 Basin-A6-1 6391.441 3393.054 545 Basin-A6-1 6327.475 3337.084 546 Basin-A6-1 6292.827 3422.372 547 Basin-A6-1 6335.471 3483.672 548 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8713.342 5517.342 579 Basin-A6-2 8915.900 5578.643 580 Basin-A6-2 8926.561 5570.647 581 Basin-A6-2 8942.553 5472.033 582 Basin-A6-2 9035.836 5424.059 583 Basin-A6-2 9041.167 5261.479 584 Basin-A6-2 9091.807 5224.165 585 Basin-A6-2 9075.815 5197.513 586 Basin-A6-2 9134.451 5128.216 587 Basin-A6-2 9182.425 5133.547 588 Basin-A6-2 9203.747 5114.890 589 Basin-A6-2 9190.421 5090.903 590 Basin-A6-2 9238.395 5069.581 591 Basin-A6-2 9278.374 5069.581 592 Basin-A6-2 9281.039 5090.903 593 Basin-A6-2 9310.357 5093.568 594 Basin-A6-2 9315.687 5085.572 595 Basin-A6-2 9347.670 5082.907 596 Basin-A6-2 9363.662 5061.585 597 Basin-A6-2 9448.949 5085.572 598 Basin-A6-2 9558.225 5080.242 599 Basin-A6-2 9635.517 4755.082 600 Basin-A6-2 9611.529 4757.747 601 Basin-A6-2 9600.868 4712.438 602 Basin-A6-2 9656.839 4635.146 603 Basin-A6-2 9590.207 4483.227 604 Basin-A6-2 9321.018 4451.244 605 Basin-A6-2 9323.683 4600.498 606 Basin-A6-2 9265.048 4784.400 607 Basin-A6-2 9086.476 4992.289 608 Basin-A6-2 9011.849 4989.624 609 Basin-A6-2 8801.295 5178.856 610 Basin-A6-2 8588.075 5304.122 611 Basin-A6-2 8254.920 5250.818 612 Basin-A6-2 7991.060 5141.543 613 Basin-A6-2 7644.578 5018.941 614 Basin-A6-2 7234.131 4941.649 615 Basin-A6-2 7247.457 4883.014 616 Basin-A6-2 7191.487 4896.340 617 Basin-A6-2 7162.169 4970.967 618 Basin-A6-3 5090.748 2408.149 619 Basin-A6-3 5136.057 2352.179 620 Basin-A6-3 5293.307 2149.621 621 Basin-A6-3 5418.573 1976.380 622 Basin-A6-3 5495.865 1893.757 623 Basin-A6-3 6298.104 1525.953 624 Basin-A6-3 6596.612 1355.378 625 Basin-A6-3 7036.377 1376.700 626 Basin-A6-3 7449.490 1704.525 627 Basin-A6-3 7678.701 1853.778 628 Basin-A6-3 7867.934 1915.079 629 Basin-A6-3 7763.989 1619.237 630 Basin-A6-3 7670.706 1627.233 631 Basin-A6-3 7585.418 1587.254 632 Basin-A6-3 7284.245 1296.742 633 Basin-A6-3 6951.089 1150.154 634 Basin-A6-3 6660.578 1150.154 635 Basin-A6-3 5543.840 1613.906 636 Basin-A6-3 5357.273 1720.516 637 Basin-A6-3 5242.667 1819.130 638 Basin-A6-3 5125.396 2066.998 639 Basin-A6-3 5080.087 2253.565 640 Basin-A6-3 5080.087 2373.501 641 Basin-A6-3 5090.748 2405.484 642 Basin-A2-2 3509.927 6290.979 643 Basin-A2-2 3507.262 6305.638 644 Basin-A2-2 3581.889 6329.625 645 Basin-A2-2 3628.531 6526.854 646 Basin-A2-2 3657.848 6526.854 647 Basin-A2-2 3664.511 6598.815 648 Basin-A2-2 3711.153 6608.143 649 Basin-A2-2 3711.153 6628.133 650 Basin-A2-2 3657.848 6629.465 651 Basin-A2-2 3645.855 6854.679 652 Basin-A2-2 3693.829 6856.011 653 Basin-A2-2 3679.170 7162.514 654 Basin-A2-2 3836.420 7169.178 655 Basin-A2-2 3845.748 7146.523 656 Basin-A2-2 4278.850 7174.508 657 Basin-A2-2 4350.812 6021.790 658 Basin-A2-2 4270.855 6012.461 659 Basin-A2-2 4240.204 6685.436 660 Basin-A2-2 4218.882 6688.101 661 Basin-A2-2 4220.215 6625.468 662 Basin-A2-2 4109.607 6614.807 663 Basin-A2-2 3975.012 6433.570 664 Basin-A2-2 3983.008 6421.576 665 Basin-A2-2 4122.934 6536.182 666 Basin-A2-2 4214.884 6464.220 667 Basin-A2-2 3988.339 6167.045 668 Basin-A2-2 3885.727 6235.009 669 Basin-A2-2 3971.015 6401.587 670 Basin-A2-2 3958.249 6410.320 671 Basin-A2-2 3923.275 6370.488 672 Basin-A2-2 3821.266 6256.822 673 Basin-A2-2 3680.398 6306.369 674 Basin-A2-2 3641.857 6510.862 675 Basin-A2-2 3592.550 6272.323 676 Basin-A2-2 3644.522 6254.999 677 Basin-A2-2 3644.522 6248.335 678 Basin-A2-2 3917.710 6128.399 679 Basin-A2-2 3877.731 5996.470 680 Basin-A2-2 3471.281 6127.067 681 Basin-A2-2 3523.253 6261.662 682 Basin-A2-2 3560.567 6254.999 683 Basin-A2-2 3580.556 6309.636 684 Basin-A2-2 3509.927 6289.647 685 Basin-A2-3 4038.533 5744.562 686 Basin-A2-3 4111.827 5768.549 687 Basin-A2-3 4093.171 5707.249 688 Basin-A2-3 4047.861 5712.579 689 Basin-A2-3 4005.218 5583.315 690 Basin-A2-3 4406.337 5442.057 691 Basin-A2-3 4450.314 5577.984 692 Basin-A2-3 4119.823 5732.568 693 Basin-A2-3 4170.463 5953.784 694 Basin-A2-3 4203.778 5759.221 695 Basin-A2-3 4347.702 5705.916 696 Basin-A2-3 4486.294 5859.167 697 Basin-A2-3 4491.625 5855.170 698 Basin-A2-3 4486.294 5825.852 699 Basin-A2-3 4414.333 5689.924 700 Basin-A2-3 4518.277 5619.295 701 Basin-A2-3 4748.821 5921.801 702 Basin-A2-3 4651.540 5997.760 703 Basin-A2-3 4516.945 5875.159 704 Basin-A2-3 4502.286 5881.822 705 Basin-A2-3 4635.548 6069.722 706 Basin-A2-3 4748.821 6075.052 707 Basin-A2-3 4747.488 6140.351 708 Basin-A2-3 4766.145 6141.683 709 Basin-A2-3 4796.795 5468.709 710 Basin-A2-3 4726.166 5412.739 711 Basin-A2-3 4436.987 5398.080 712 Basin-A2-3 4403.672 5431.396 713 Basin-A2-3 3990.559 5569.988 714 Basin-A2-3 4034.535 5744.562 715 Basin-A8-1 5533.866 7365.076 716 Basin-A8-1 5370.828 7199.177 717 Basin-A8-1 5270.717 7136.250 718 Basin-A8-1 5239.254 7090.485 719 Basin-A8-1 5279.298 6744.386 720 Basin-A8-1 5270.717 6707.202 721 Basin-A8-1 5296.460 6678.599 722 Basin-A8-1 5405.152 6681.459 723 Basin-A8-1 5485.241 6667.158 724 Basin-A8-1 5502.403 6747.247 725 Basin-A8-1 5545.308 6784.431 726 Basin-A8-1 5545.308 6818.755 727 Basin-A8-1 5542.447 6841.637 728 Basin-A8-1 5551.028 6858.799 729 Basin-A8-1 5593.933 6875.961 730 Basin-A8-1 5622.536 6867.380 731 Basin-A8-1 5662.581 7018.977 732 Basin-A8-1 5651.140 7056.161 733 Basin-A8-1 5685.463 7064.742 734 Basin-A8-1 5633.978 7279.266 735 Basin-A8-1 5662.581 7282.126 736 Basin-A8-1 5645.419 7322.171 737 Basin-A8-1 5525.285 7367.936 738 Basin-A2-1 2965.036 6785.987 739 Basin-A2-1 3044.958 6812.628 740 Basin-A2-1 3083.709 7003.958 741 Basin-A2-1 3122.459 7011.223 742 Basin-A2-1 3120.037 7071.771 743 Basin-A2-1 3166.053 7083.880 744 Basin-A2-1 3166.053 7103.255 745 Basin-A2-1 3117.615 7105.677 746 Basin-A2-1 3107.928 7335.758 747 Basin-A2-1 3149.100 7335.758 748 Basin-A2-1 3134.568 7636.073 749 Basin-A2-1 3296.836 7645.760 750 Basin-A2-1 3306.523 7626.385 751 Basin-A2-1 3740.043 7655.448 752 Basin-A2-1 3723.089 7735.371 753 Basin-A2-1 3081.287 7742.636 754 Basin-A2-1 2974.723 7335.758 755 Basin-A2-1 3025.583 6890.129 756 Basin-A2-1 2940.817 6863.488 757 Basin-A2-1 2967.458 6781.143 758 IMP-2 4167.637 5455.684 759 IMP-2 4144.884 5390.269 760 IMP-2 4173.325 5390.269 761 IMP-2 4252.961 5398.801 762 IMP-2 4301.312 5398.801 763 IMP-2 4352.506 5413.022 764 IMP-2 4346.818 5475.593 765 IMP-2 4403.701 5504.034 766 IMP-2 4398.013 5600.735 767 IMP-2 4378.104 5600.735 768 IMP-2 4295.624 5489.814 769 IMP-2 4181.858 5481.281 770 IMP-5 6536.333 7750.605 771 IMP-5 6554.820 7652.482 772 IMP-5 6574.729 7638.262 773 IMP-5 6749.644 7680.924 774 IMP-5 6741.111 7742.073 775 IMP-5 6567.618 7780.469 776 IMP-8 5314.769 7458.622 777 IMP-8 5326.210 7435.739 778 IMP-8 5311.908 7421.437 779 IMP-8 5303.327 7384.253 780 IMP-8 5251.842 7392.834 781 IMP-8 5240.400 7418.577 782 IMP-8 5303.327 7458.622 783 Bioswale-6 5992.835 1623.298 784 Bioswale-6 6106.600 1483.935 785 Bioswale-6 7247.101 980.522 786 Bioswale-6 7741.981 1031.717 787 Bioswale-6 8168.602 1384.390 788 Bioswale-6 8282.368 1429.896 789 Bioswale-6 8390.445 1412.832 790 Bioswale-6 8453.017 1387.234 791 Bioswale-6 8464.393 1347.416 792 Bioswale-6 8424.575 1333.196 793 Bioswale-6 8253.927 1373.014 794 Bioswale-6 7813.085 977.678 795 Bioswale-6 7264.166 900.886 796 Bioswale-6 6072.470 1429.896 797 Bioswale-6 5961.549 1606.233 798 IMP-3 4857.000 5493.270 799 IMP-3 4901.428 5373.871 800 IMP-3 5018.050 5310.006 801 IMP-3 5129.120 5307.230 802 IMP-3 5037.488 5451.620 803 IMP-3 4843.117 5573.796 804 805 [SYMBOLS] 806 ;;Gage X-Coord Y-Coord 807 ;;-------------- ------------------ ------------------ 808 Oceanside 986.526 7930.703 809 810 811 [BACKDROP] 812 FILE "Q:\14\14100\GPIP\GP1\SWMM\OutFall A\14100-POST-Model.jpg" 813 DIMENSIONS -1470.588 0.000 11470.588 10000.000 814 1 2 EPA STORM WATER MANAGEMENT MODEL - VERSION 5.2 (Build 5.2.1) 3 ------------------------------------------------------------ 4 5 6 **************** 7 Analysis Options 8 **************** 9 Flow Units ............... CFS 10 Process Models: 11 Rainfall/Runoff ........ YES 12 RDII ................... NO 13 Snowmelt ............... NO 14 Groundwater ............ NO 15 Flow Routing ........... YES 16 Ponding Allowed ........ NO 17 Water Quality .......... NO 18 Infiltration Method ...... GREEN_AMPT 19 Flow Routing Method ...... KINWAVE 20 Starting Date ............ 01/03/1951 16:00:00 21 Ending Date .............. 05/23/2008 23:00:00 22 Antecedent Dry Days ...... 0.0 23 Report Time Step ......... 01:00:00 24 Wet Time Step ............ 01:00:00 25 Dry Time Step ............ 01:00:00 26 Routing Time Step ........ 60.00 sec 27 28 29 ********************* 30 Rainfall File Summary 31 ********************* 32 Station First Last Recording Periods Periods Periods 33 ID Date Date Frequency w/Precip Missing Malfunc. 34 ------------------------------------------------------------------------------- 35 Oceanside 08/28/1951 05/23/2008 60 min 9131 0 0 36 37 38 39 ************************** Volume Depth 40 Runoff Quantity Continuity acre-feet inches 41 ************************** --------- ------- 42 Initial LID Storage ...... 0.074 0.039 43 Total Precipitation ...... 1275.538 670.072 44 Evaporation Loss ......... 224.044 117.696 45 Infiltration Loss ........ 501.494 263.448 46 Surface Runoff ........... 203.920 107.125 47 LID Drainage ............. 421.292 221.315 48 Final Storage ............ 0.161 0.084 49 Continuity Error (%) ..... -5.903 50 51 52 ************************** Volume Volume 53 Flow Routing Continuity acre-feet 10^6 gal 54 ************************** --------- --------- 55 Dry Weather Inflow ....... 0.000 0.000 56 Wet Weather Inflow ....... 625.306 203.765 57 Groundwater Inflow ....... 0.000 0.000 58 RDII Inflow .............. 0.000 0.000 59 External Inflow .......... 0.000 0.000 60 External Outflow ......... 619.213 201.780 61 Flooding Loss ............ 0.000 0.000 62 Evaporation Loss ......... 5.913 1.927 63 Exfiltration Loss ........ 0.000 0.000 64 Initial Stored Volume .... 0.000 0.000 65 Final Stored Volume ...... 0.000 0.000 66 Continuity Error (%) ..... 0.029 67 68 69 ******************************** 70 Highest Flow Instability Indexes 71 ******************************** 72 All links are stable. 73 74 75 ************************* 76 Routing Time Step Summary 77 ************************* 78 Minimum Time Step : 60.00 sec 79 Average Time Step : 60.00 sec 80 Maximum Time Step : 60.00 sec 81 % of Time in Steady State : 0.00 82 Average Iterations per Step : 1.00 83 % of Steps Not Converging : 0.00 84 85 86 *************************** 87 Subcatchment Runoff Summary 88 *************************** 89 90 --------------------------------------------------------------------------------------- --------------------------------------- 91 Total Total Total Total Imperv Perv Total Total Peak Runoff 92 Precip Runon Evap Infil Runoff Runoff Runoff Runoff Runoff Coeff 93 Subcatchment in in in in in in in 10^6 gal CFS 94 --------------------------------------------------------------------------------------- --------------------------------------- 95 Basin-A3-1 670.07 0.00 4.77 650.78 0.00 27.75 27.75 0.22 0.21 0.041 96 Basin-A3-2 670.07 0.00 4.67 649.75 0.00 28.42 28.42 0.13 0.12 0.042 97 Basin-A3-3 670.07 2.28 97.03 271.37 333.83 7.84 341.67 32.24 3.07 0.508 98 Basin-A5-1 670.07 0.00 4.70 650.13 0.00 28.19 28.19 0.16 0.15 0.042 99 Basin-A5-2 670.07 6.12 113.12 143.19 461.13 6.55 467.68 12.14 0.95 0.692 100 Basin-A3-4 670.07 0.00 4.79 651.09 0.00 27.52 27.52 0.27 0.26 0.041 101 Basin-A6-1 670.07 0.00 106.80 183.40 414.84 12.86 427.70 128.05 9.78 0.638 102 Basin-A6-2 670.07 0.00 14.62 601.65 44.82 25.40 70.22 3.75 1.46 0.105 103 Basin-A6-3 670.07 0.00 4.67 649.82 0.00 28.38 28.38 0.34 0.32 0.042 104 Basin-A2-2 670.07 5.40 135.97 48.33 544.31 2.21 546.52 29.78 2.03 0.809 105 Basin-A2-3 670.07 0.00 4.68 649.83 0.00 28.38 28.38 0.42 0.39 0.042 106 Basin-A8-1 670.07 0.00 123.05 152.32 437.19 5.57 442.76 6.36 0.47 0.661 107 Basin-A2-1 670.07 0.00 4.76 650.74 0.00 27.81 27.81 0.30 0.28 0.042 108 IMP-2 670.07 13231.12 1323.07 0.00 0.00 0.00 12583.91 28.70 2.42 0.905 109 IMP-5 670.07 13961.74 1328.47 0.00 0.00 0.00 13309.45 11.56 0.95 0.910 110 IMP-8 670.07 26017.34 1385.56 0.00 0.00 0.00 25316.54 6.19 0.46 0.949 111 Bioswale-6 670.07 16155.35 1438.01 0.00 0.00 0.00 15395.55 125.83 11.55 0.915 112 IMP-3 670.07 18206.57 1343.40 0.00 0.00 0.00 17540.75 31.44 3.45 0.929 113 114 115 *********************** 116 LID Performance Summary 117 *********************** 118 119 --------------------------------------------------------------------------------------- ----------------------------- 120 Total Evap Infil Surface Drain Initial Final Continuity 121 Inflow Loss Loss Outflow Outflow Storage Storage Error 122 Subcatchment LID Control in in in in in in in % 123 --------------------------------------------------------------------------------------- ----------------------------- 124 IMP-2 IMP-2 13901.19 1323.12 0.00 1274.93 11309.44 1.80 2.78 -0.05 125 IMP-5 IMP-5 14631.81 1328.52 0.00 1256.64 12053.30 1.80 2.84 -0.05 126 IMP-8 IMP-8 26687.41 1385.61 0.00 6264.95 19052.52 1.80 3.55 -0.07 127 Bioswale-6 Bioswale-6 16825.42 1438.06 0.00 6599.00 8797.12 1.80 2.96 -0.06 128 IMP-3 IMP-3 18876.65 1343.45 0.00 3896.16 13645.23 1.80 2.97 -0.05 129 130 ****************** 131 Node Depth Summary 132 ****************** 133 134 --------------------------------------------------------------------------------- 135 Average Maximum Maximum Time of Max Reported 136 Depth Depth HGL Occurrence Max Depth 137 Node Type Feet Feet Feet days hr:min Feet 138 --------------------------------------------------------------------------------- 139 1 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 140 2 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 141 3 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 142 4 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 143 5 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 144 7 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 145 8 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 146 9 JUNCTION 0.00 0.00 0.00 0 00:00 0.00 147 Outfall-A OUTFALL 0.00 0.00 0.00 0 00:00 0.00 148 Divider-IMP-2 DIVIDER 0.00 0.00 0.00 0 00:00 0.00 149 Divider-Bioswale-6 DIVIDER 0.00 0.00 0.00 0 00:00 0.00 150 Divider-IMP-3 DIVIDER 0.00 0.00 0.00 0 00:00 0.00 151 Divider-IMP-5 DIVIDER 0.00 0.00 0.00 0 00:00 0.00 152 Divider-IMP-8 DIVIDER 0.00 0.00 0.00 0 00:00 0.00 153 Storage-IMP-2 STORAGE 0.00 0.52 0.52 16072 06:05 0.51 154 Storage-Bioswale-6 STORAGE 0.01 3.10 3.10 16072 06:03 3.09 155 Storage-IMP-3 STORAGE 0.00 0.38 0.38 16072 06:02 0.38 156 Storage-IMP-5 STORAGE 0.00 0.10 0.10 16072 06:02 0.10 157 Storage-IMP-8 STORAGE 0.00 0.08 0.08 16072 06:01 0.08 158 159 160 ******************* 161 Node Inflow Summary 162 ******************* 163 164 --------------------------------------------------------------------------------------- ---------- 165 Maximum Maximum Lateral Total Flow 166 Lateral Total Time of Max Inflow Inflow Balance 167 Inflow Inflow Occurrence Volume Volume Error 168 Node Type CFS CFS days hr:min 10^6 gal 10^6 gal Percent 169 --------------------------------------------------------------------------------------- ---------- 170 1 JUNCTION 0.00 7.02 16072 06:02 0 77.8 0.000 171 2 JUNCTION 0.00 7.02 16072 06:02 0 77.8 0.000 172 3 JUNCTION 0.00 0.94 16072 06:02 0 11.6 0.000 173 4 JUNCTION 0.00 0.94 16072 06:02 0 11.6 0.000 174 5 JUNCTION 0.00 1.40 16072 06:02 0 17.7 0.000 175 7 JUNCTION 11.55 18.55 16072 06:01 126 204 0.000 176 8 JUNCTION 0.00 7.02 16072 06:02 0 77.8 0.000 177 9 JUNCTION 0.00 0.46 16072 06:01 0 6.19 0.000 178 Outfall-A OUTFALL 0.00 18.14 16072 06:03 0 202 0.000 179 Divider-IMP-2 DIVIDER 2.42 2.42 16072 06:01 28.7 28.7 0.000 180 Divider-Bioswale-6 DIVIDER 0.00 18.55 16072 06:01 0 204 0.000 181 Divider-IMP-3 DIVIDER 3.45 3.45 16072 06:01 31.4 31.4 0.000 182 Divider-IMP-5 DIVIDER 0.95 0.95 16072 06:01 11.6 11.6 0.000 183 Divider-IMP-8 DIVIDER 0.46 0.46 16072 06:01 6.19 6.19 0.000 184 Storage-IMP-2 STORAGE 0.00 2.29 16072 06:01 0 3.98 -0.002 185 Storage-Bioswale-6 STORAGE 0.00 18.42 16072 06:01 0 130 0.045 186 Storage-IMP-3 STORAGE 0.00 3.32 16072 06:01 0 5.58 -0.001 187 Storage-IMP-5 STORAGE 0.00 0.82 16072 06:01 0 0.478 -0.003 188 Storage-IMP-8 STORAGE 0.00 0.34 16072 06:01 0 0.147 -0.003 189 190 191 ********************* 192 Node Flooding Summary 193 ********************* 194 195 No nodes were flooded. 196 197 198 ********************** 199 Storage Volume Summary 200 ********************** 201 202 --------------------------------------------------------------------------------------- ----------- 203 Average Avg Evap Exfil Maximum Max Time of Max Maximum 204 Volume Pcnt Pcnt Pcnt Volume Pcnt Occurrence Outflow 205 Storage Unit 1000 ft³ Full Loss Loss 1000 ft³ Full days hr:min CFS 206 --------------------------------------------------------------------------------------- ----------- 207 Storage-IMP-2 0.000 0 1 0 2.010 10 16072 06:05 2.14 208 Storage-Bioswale-6 0.108 0 1 0 41.271 73 16072 06:03 18.03 209 Storage-IMP-3 0.000 0 0 0 1.139 16 16072 06:02 3.24 210 Storage-IMP-5 0.000 0 0 0 0.166 4 16072 06:02 0.81 211 Storage-IMP-8 0.000 0 0 0 0.042 2 16072 06:01 0.33 212 213 214 *********************** 215 Outfall Loading Summary 216 *********************** 217 218 ----------------------------------------------------------- 219 Flow Avg Max Total 220 Freq Flow Flow Volume 221 Outfall Node Pcnt CFS CFS 10^6 gal 222 ----------------------------------------------------------- 223 Outfall-A 6.34 0.23 18.14 201.765 224 ----------------------------------------------------------- 225 System 6.34 0.23 18.14 201.765 226 227 228 ******************** 229 Link Flow Summary 230 ******************** 231 232 ----------------------------------------------------------------------------- 233 Maximum Time of Max Maximum Max/ Max/ 234 |Flow| Occurrence |Veloc| Full Full 235 Link Type CFS days hr:min ft/sec Flow Depth 236 ----------------------------------------------------------------------------- 237 Bypass-IMP-2 DUMMY 2.29 16072 06:01 238 3 DUMMY 7.02 16072 06:02 239 Underdrain-IMP-2 DUMMY 0.13 236 20:12 240 Underdrain-Bioswale-6 DUMMY 0.13 377 20:19 241 Bypass-Bioswale-6 DUMMY 18.42 16072 06:01 242 Bypass-IMP-3 DUMMY 3.32 16072 06:01 243 Underdrain-IMP-3 DUMMY 0.13 360 12:04 244 6 DUMMY 0.94 16072 06:02 245 7 DUMMY 0.94 16072 06:02 246 8 DUMMY 1.40 16072 06:02 247 Bypass-IMP-5 DUMMY 0.82 16072 06:01 248 Underdrain-IMP-5 DUMMY 0.13 377 20:11 249 12 DUMMY 18.55 16072 06:01 250 13 DUMMY 7.02 16072 06:02 251 14 DUMMY 7.02 16072 06:02 252 15 DUMMY 0.46 16072 06:01 253 Underdrain-IMP-8 DUMMY 0.13 377 20:20 254 Bypass-IMP-8 DUMMY 0.34 16072 06:01 255 Outlet-IMP-2 DUMMY 2.14 16072 06:05 256 Outlet-Bioswale-6 DUMMY 18.01 16072 06:03 257 Outlet-IMP-3 DUMMY 3.24 16072 06:02 258 Outlet-IMP-5 DUMMY 0.81 16072 06:02 259 Outlet-IMP-8 DUMMY 0.33 16072 06:01 260 261 262 ************************* 263 Conduit Surcharge Summary 264 ************************* 265 266 No conduits were surcharged. 267 268 269 Analysis begun on: Tue Oct 18 15:35:07 2022 270 Analysis ended on: Tue Oct 18 15:36:24 2022 271 Total elapsed time: 00:01:17 Excel Engineering Q:\14\14100\GPIP\GP3\Report\report parts\Statistics Reports\Outfall-A\Statistics Results-Outfall-A.pdf 10/19/2022 11:38:23 AM software version: 1.0.7318.27220 STATISTICS ANALYSIS OF THE SWMM FILES FOR: DISCHARGE NODE: OUTFALL-A ANALYSIS DETAILS Stream Susceptibility to Channel Erosion: High Low Flow Threshold = (0.1)Q2 = (0.1)7.870 = Qlf = 0.7870 (cfs) Flow Control Upper Limit = Q10 = 11.980 (cfs) Assumed time between storms (hours): 24 PRE-DEVELOPMENT SWMM FILE SWMM file name: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out SWMM file time stamp: 1/16/2020 2:53:23 PM Selected Node to Analyze: Outfall-A POST-DEVELOPMENT MITIGATED SWMM FILE SWMM file name: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out SWMM file time stamp: 10/18/2022 3:36:24 PM Selected Node to Analyze: Outfall-A MITIGATED CONDITIONS RESULTS For the Mitigated Conditions: Peak Flow Conditions PASS Flow Duration Conditions PASS The Mitigated Conditions peak flow frequency curve is composed of 448 points. Of the points, 1 point(s) are above the flow control upper limit (Q10 = 11.98 (cfs)), 268 point(s) are below the low flow threshold value (Qlf = 0.787 (cfs)). Of the points within the flow control range (Qlf to Q10), 179 point(s) have a lower peak flow rate than pre- development conditions. These points all pass. There are no points that failed, therefore the peak flow requirements have been met. The Mitigated Conditions flow duration curve is composed of 100 flow bins (points). Each point represents the number of hours where the discharge was equal to or greater than the discharge value, but less than the next greater discharge value. Within the flow control range, comparing the post-development flow duration curve to the pre-development flow duration curve, 98 post-development curve point(s) have a lower flow duration than pre-development conditions, and 2 point(s) have a flow duration that exceeds the pre-development flow duration by less than 10%. These points all pass. There are no points that failed, therefore the flow duration requirements have been met. Excel Engineering Excel Engineering peakFlowPassFailMitigated.TXT Compared to: pre-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out pre-development time stamp: 1/16/2020 2:53:23 PM Compare Post-Development Curve to Pre-Development Curve Flow Control Upper Limit: 11.98 (cfs) Flow Control Lower Limit: 0.787 (cfs) post-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out post-development time stamp: 10/18/2022 3:36:24 PM Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 0 58.00 17.97 17.84 FALSE FALSE FALSE Pass- Qpost Above Q10 (11.98 (cfs)) 1 29.00 9.77 14.45 TRUE FALSE FALSE Pass- Qpost < Qpre 2 19.33 8.25 13.37 TRUE FALSE FALSE Pass- Qpost < Qpre 3 14.50 7.12 12.97 TRUE FALSE FALSE Pass- Qpost < Qpre 4 11.60 6.45 12.27 TRUE FALSE FALSE Pass- Qpost < Qpre 5 9.67 6.06 11.92 TRUE FALSE FALSE Pass- Qpost < Qpre 6 8.29 5.67 11.84 TRUE FALSE FALSE Pass- Qpost < Qpre 7 7.25 5.37 11.80 TRUE FALSE FALSE Pass- Qpost < Qpre 8 6.44 5.19 11.77 TRUE FALSE FALSE Pass- Qpost < Qpre 9 5.80 4.38 11.68 TRUE FALSE FALSE Pass- Qpost < Qpre 10 5.27 4.19 11.36 TRUE FALSE FALSE Pass- Qpost < Qpre 11 4.83 3.92 10.97 TRUE FALSE FALSE Pass- Qpost < Qpre 12 4.46 3.84 10.73 TRUE FALSE FALSE Pass- Qpost < Qpre 13 4.14 3.82 10.69 TRUE FALSE FALSE Pass- Qpost < Qpre 14 3.87 3.80 10.61 TRUE FALSE FALSE Pass- Qpost < Qpre 15 3.63 3.78 10.49 TRUE FALSE FALSE Pass- Qpost < Qpre 16 3.41 3.25 9.73 TRUE FALSE FALSE Pass- Qpost < Qpre 17 3.22 3.23 9.62 TRUE FALSE FALSE Pass- Qpost < Qpre 18 3.05 3.22 9.61 TRUE FALSE FALSE Pass- Qpost < Qpre 19 2.90 3.15 9.57 TRUE FALSE FALSE Pass- Qpost < Qpre 20 2.76 3.13 9.41 TRUE FALSE FALSE Pass- Qpost < Qpre 21 2.64 3.09 9.39 TRUE FALSE FALSE Pass- Qpost < Qpre 22 2.52 3.08 9.00 TRUE FALSE FALSE Pass- Qpost < Qpre 23 2.42 3.03 8.94 TRUE FALSE FALSE Pass- Qpost < Qpre 24 2.32 3.03 8.72 TRUE FALSE FALSE Pass- Qpost < Qpre 25 2.23 3.00 8.05 TRUE FALSE FALSE Pass- Qpost < Qpre 26 2.15 2.95 7.99 TRUE FALSE FALSE Pass- Qpost < Qpre 27 2.07 2.89 7.89 TRUE FALSE FALSE Pass- Qpost < Qpre 28 2.00 2.87 7.87 TRUE FALSE FALSE Pass- Qpost < Qpre 29 1.93 2.78 7.83 TRUE FALSE FALSE Pass- Qpost < Qpre 30 1.87 2.77 7.80 TRUE FALSE FALSE Pass- Qpost < Qpre 31 1.81 2.77 7.50 TRUE FALSE FALSE Pass- Qpost < Qpre 1/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 32 1.76 2.77 7.35 TRUE FALSE FALSE Pass- Qpost < Qpre 33 1.71 2.64 7.34 TRUE FALSE FALSE Pass- Qpost < Qpre 34 1.66 2.62 7.22 TRUE FALSE FALSE Pass- Qpost < Qpre 35 1.61 2.55 6.92 TRUE FALSE FALSE Pass- Qpost < Qpre 36 1.57 2.51 6.69 TRUE FALSE FALSE Pass- Qpost < Qpre 37 1.53 2.50 6.45 TRUE FALSE FALSE Pass- Qpost < Qpre 38 1.49 2.50 6.00 TRUE FALSE FALSE Pass- Qpost < Qpre 39 1.45 2.45 6.00 TRUE FALSE FALSE Pass- Qpost < Qpre 40 1.42 2.44 5.93 TRUE FALSE FALSE Pass- Qpost < Qpre 41 1.38 2.41 5.76 TRUE FALSE FALSE Pass- Qpost < Qpre 42 1.35 2.38 5.76 TRUE FALSE FALSE Pass- Qpost < Qpre 43 1.32 2.36 5.70 TRUE FALSE FALSE Pass- Qpost < Qpre 44 1.29 2.35 5.65 TRUE FALSE FALSE Pass- Qpost < Qpre 45 1.26 2.30 5.30 TRUE FALSE FALSE Pass- Qpost < Qpre 46 1.23 2.27 5.29 TRUE FALSE FALSE Pass- Qpost < Qpre 47 1.21 2.24 5.26 TRUE FALSE FALSE Pass- Qpost < Qpre 48 1.18 2.23 5.13 TRUE FALSE FALSE Pass- Qpost < Qpre 49 1.16 2.23 5.13 TRUE FALSE FALSE Pass- Qpost < Qpre 50 1.14 2.23 5.10 TRUE FALSE FALSE Pass- Qpost < Qpre 51 1.12 2.19 5.07 TRUE FALSE FALSE Pass- Qpost < Qpre 52 1.09 2.18 5.06 TRUE FALSE FALSE Pass- Qpost < Qpre 53 1.07 2.17 5.05 TRUE FALSE FALSE Pass- Qpost < Qpre 54 1.06 2.16 5.05 TRUE FALSE FALSE Pass- Qpost < Qpre 55 1.04 2.13 5.05 TRUE FALSE FALSE Pass- Qpost < Qpre 56 1.02 2.12 5.03 TRUE FALSE FALSE Pass- Qpost < Qpre 57 1.00 2.11 4.93 TRUE FALSE FALSE Pass- Qpost < Qpre 58 0.98 2.10 4.82 TRUE FALSE FALSE Pass- Qpost < Qpre 59 0.97 2.10 4.81 TRUE FALSE FALSE Pass- Qpost < Qpre 60 0.95 2.09 4.80 TRUE FALSE FALSE Pass- Qpost < Qpre 61 0.94 2.00 4.80 TRUE FALSE FALSE Pass- Qpost < Qpre 62 0.92 1.97 4.75 TRUE FALSE FALSE Pass- Qpost < Qpre 63 0.91 1.95 4.65 TRUE FALSE FALSE Pass- Qpost < Qpre 64 0.89 1.94 4.60 TRUE FALSE FALSE Pass- Qpost < Qpre 65 0.88 1.92 4.53 TRUE FALSE FALSE Pass- Qpost < Qpre 66 0.87 1.89 4.53 TRUE FALSE FALSE Pass- Qpost < Qpre 67 0.85 1.88 4.42 TRUE FALSE FALSE Pass- Qpost < Qpre 68 0.84 1.86 4.33 TRUE FALSE FALSE Pass- Qpost < Qpre 69 0.83 1.84 4.15 TRUE FALSE FALSE Pass- Qpost < Qpre 70 0.82 1.82 4.07 TRUE FALSE FALSE Pass- Qpost < Qpre 71 0.81 1.82 4.00 TRUE FALSE FALSE Pass- Qpost < Qpre 72 0.80 1.82 3.91 TRUE FALSE FALSE Pass- Qpost < Qpre 73 0.78 1.82 3.90 TRUE FALSE FALSE Pass- Qpost < Qpre 2/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 74 0.77 1.82 3.80 TRUE FALSE FALSE Pass- Qpost < Qpre 75 0.76 1.79 3.79 TRUE FALSE FALSE Pass- Qpost < Qpre 76 0.75 1.79 3.77 TRUE FALSE FALSE Pass- Qpost < Qpre 77 0.74 1.78 3.76 TRUE FALSE FALSE Pass- Qpost < Qpre 78 0.73 1.77 3.75 TRUE FALSE FALSE Pass- Qpost < Qpre 79 0.73 1.76 3.70 TRUE FALSE FALSE Pass- Qpost < Qpre 80 0.72 1.74 3.61 TRUE FALSE FALSE Pass- Qpost < Qpre 81 0.71 1.68 3.54 TRUE FALSE FALSE Pass- Qpost < Qpre 82 0.70 1.66 3.51 TRUE FALSE FALSE Pass- Qpost < Qpre 83 0.69 1.64 3.46 TRUE FALSE FALSE Pass- Qpost < Qpre 84 0.68 1.63 3.35 TRUE FALSE FALSE Pass- Qpost < Qpre 85 0.67 1.63 3.32 TRUE FALSE FALSE Pass- Qpost < Qpre 86 0.67 1.62 3.29 TRUE FALSE FALSE Pass- Qpost < Qpre 87 0.66 1.62 3.28 TRUE FALSE FALSE Pass- Qpost < Qpre 88 0.65 1.59 3.27 TRUE FALSE FALSE Pass- Qpost < Qpre 89 0.64 1.58 3.24 TRUE FALSE FALSE Pass- Qpost < Qpre 90 0.64 1.57 3.23 TRUE FALSE FALSE Pass- Qpost < Qpre 91 0.63 1.55 3.20 TRUE FALSE FALSE Pass- Qpost < Qpre 92 0.62 1.54 3.18 TRUE FALSE FALSE Pass- Qpost < Qpre 93 0.62 1.53 3.15 TRUE FALSE FALSE Pass- Qpost < Qpre 94 0.61 1.53 3.10 TRUE FALSE FALSE Pass- Qpost < Qpre 95 0.60 1.52 3.05 TRUE FALSE FALSE Pass- Qpost < Qpre 96 0.60 1.52 3.05 TRUE FALSE FALSE Pass- Qpost < Qpre 97 0.59 1.46 3.05 TRUE FALSE FALSE Pass- Qpost < Qpre 98 0.59 1.44 3.04 TRUE FALSE FALSE Pass- Qpost < Qpre 99 0.58 1.44 3.03 TRUE FALSE FALSE Pass- Qpost < Qpre 100 0.57 1.44 3.03 TRUE FALSE FALSE Pass- Qpost < Qpre 101 0.57 1.43 3.03 TRUE FALSE FALSE Pass- Qpost < Qpre 102 0.56 1.43 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 103 0.56 1.41 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 104 0.55 1.41 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 105 0.55 1.40 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 106 0.54 1.39 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 107 0.54 1.37 3.02 TRUE FALSE FALSE Pass- Qpost < Qpre 108 0.53 1.36 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 109 0.53 1.36 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 110 0.52 1.35 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 111 0.52 1.34 3.01 TRUE FALSE FALSE Pass- Qpost < Qpre 112 0.51 1.33 3.00 TRUE FALSE FALSE Pass- Qpost < Qpre 113 0.51 1.32 3.00 TRUE FALSE FALSE Pass- Qpost < Qpre 114 0.50 1.31 3.00 TRUE FALSE FALSE Pass- Qpost < Qpre 115 0.50 1.31 2.99 TRUE FALSE FALSE Pass- Qpost < Qpre 3/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 116 0.50 1.31 2.99 TRUE FALSE FALSE Pass- Qpost < Qpre 117 0.49 1.29 2.98 TRUE FALSE FALSE Pass- Qpost < Qpre 118 0.49 1.27 2.98 TRUE FALSE FALSE Pass- Qpost < Qpre 119 0.48 1.24 2.98 TRUE FALSE FALSE Pass- Qpost < Qpre 120 0.48 1.23 2.91 TRUE FALSE FALSE Pass- Qpost < Qpre 121 0.48 1.23 2.88 TRUE FALSE FALSE Pass- Qpost < Qpre 122 0.47 1.21 2.85 TRUE FALSE FALSE Pass- Qpost < Qpre 123 0.47 1.19 2.78 TRUE FALSE FALSE Pass- Qpost < Qpre 124 0.46 1.19 2.76 TRUE FALSE FALSE Pass- Qpost < Qpre 125 0.46 1.19 2.75 TRUE FALSE FALSE Pass- Qpost < Qpre 126 0.46 1.18 2.73 TRUE FALSE FALSE Pass- Qpost < Qpre 127 0.45 1.18 2.72 TRUE FALSE FALSE Pass- Qpost < Qpre 128 0.45 1.17 2.72 TRUE FALSE FALSE Pass- Qpost < Qpre 129 0.45 1.16 2.71 TRUE FALSE FALSE Pass- Qpost < Qpre 130 0.44 1.16 2.63 TRUE FALSE FALSE Pass- Qpost < Qpre 131 0.44 1.13 2.62 TRUE FALSE FALSE Pass- Qpost < Qpre 132 0.44 1.10 2.57 TRUE FALSE FALSE Pass- Qpost < Qpre 133 0.43 1.09 2.55 TRUE FALSE FALSE Pass- Qpost < Qpre 134 0.43 1.09 2.54 TRUE FALSE FALSE Pass- Qpost < Qpre 135 0.43 1.09 2.47 TRUE FALSE FALSE Pass- Qpost < Qpre 136 0.42 1.07 2.47 TRUE FALSE FALSE Pass- Qpost < Qpre 137 0.42 1.06 2.47 TRUE FALSE FALSE Pass- Qpost < Qpre 138 0.42 1.06 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 139 0.41 1.04 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 140 0.41 1.03 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 141 0.41 1.03 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 142 0.41 1.02 2.43 TRUE FALSE FALSE Pass- Qpost < Qpre 143 0.40 1.00 2.40 TRUE FALSE FALSE Pass- Qpost < Qpre 144 0.40 1.00 2.40 TRUE FALSE FALSE Pass- Qpost < Qpre 145 0.40 0.99 2.40 TRUE FALSE FALSE Pass- Qpost < Qpre 146 0.40 0.99 2.39 TRUE FALSE FALSE Pass- Qpost < Qpre 147 0.39 0.98 2.33 TRUE FALSE FALSE Pass- Qpost < Qpre 148 0.39 0.97 2.32 TRUE FALSE FALSE Pass- Qpost < Qpre 149 0.39 0.96 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 150 0.38 0.95 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 151 0.38 0.95 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 152 0.38 0.95 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 153 0.38 0.95 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 154 0.37 0.95 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 155 0.37 0.94 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 156 0.37 0.94 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 157 0.37 0.93 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 4/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 158 0.37 0.93 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 159 0.36 0.93 2.27 TRUE FALSE FALSE Pass- Qpost < Qpre 160 0.36 0.91 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 161 0.36 0.90 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 162 0.36 0.90 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 163 0.35 0.90 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 164 0.35 0.89 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 165 0.35 0.87 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 166 0.35 0.87 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 167 0.35 0.86 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 168 0.34 0.86 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 169 0.34 0.85 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 170 0.34 0.85 2.26 TRUE FALSE FALSE Pass- Qpost < Qpre 171 0.34 0.85 2.25 TRUE FALSE FALSE Pass- Qpost < Qpre 172 0.34 0.83 2.25 TRUE FALSE FALSE Pass- Qpost < Qpre 173 0.33 0.82 2.25 TRUE FALSE FALSE Pass- Qpost < Qpre 174 0.33 0.82 2.24 TRUE FALSE FALSE Pass- Qpost < Qpre 175 0.33 0.82 2.24 TRUE FALSE FALSE Pass- Qpost < Qpre 176 0.33 0.81 2.24 TRUE FALSE FALSE Pass- Qpost < Qpre 177 0.33 0.81 2.23 TRUE FALSE FALSE Pass- Qpost < Qpre 178 0.32 0.80 2.23 TRUE FALSE FALSE Pass- Qpost < Qpre 179 0.32 0.79 2.23 TRUE FALSE FALSE Pass- Qpost < Qpre 180 0.32 0.78 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 181 0.32 0.77 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 182 0.32 0.77 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 183 0.32 0.76 2.23 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 184 0.31 0.76 2.22 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 185 0.31 0.76 2.22 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 186 0.31 0.75 2.20 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 187 0.31 0.75 2.18 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 188 0.31 0.74 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 189 0.31 0.74 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 190 0.30 0.74 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 191 0.30 0.73 2.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 192 0.30 0.72 2.16 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 193 0.30 0.72 2.16 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 194 0.30 0.72 2.15 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 195 0.30 0.72 2.15 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 196 0.29 0.72 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 197 0.29 0.71 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 198 0.29 0.70 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 199 0.29 0.70 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 5/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 200 0.29 0.69 2.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 201 0.29 0.68 2.11 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 202 0.29 0.68 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 203 0.28 0.68 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 204 0.28 0.67 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 205 0.28 0.67 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 206 0.28 0.67 2.10 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 207 0.28 0.67 2.09 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 208 0.28 0.66 2.09 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 209 0.28 0.65 2.08 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 210 0.28 0.65 2.07 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 211 0.27 0.65 2.07 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 212 0.27 0.64 2.07 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 213 0.27 0.64 2.04 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 214 0.27 0.64 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 215 0.27 0.63 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 216 0.27 0.63 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 217 0.27 0.63 2.02 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 218 0.27 0.63 2.00 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 219 0.26 0.63 1.97 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 220 0.26 0.63 1.96 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 221 0.26 0.63 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 222 0.26 0.62 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 223 0.26 0.62 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 224 0.26 0.61 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 225 0.26 0.61 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 226 0.26 0.61 1.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 227 0.25 0.61 1.94 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 228 0.25 0.61 1.93 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 229 0.25 0.61 1.90 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 230 0.25 0.60 1.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 231 0.25 0.60 1.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 232 0.25 0.60 1.87 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 233 0.25 0.59 1.87 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 234 0.25 0.59 1.86 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 235 0.25 0.58 1.86 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 236 0.25 0.58 1.85 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 237 0.24 0.58 1.82 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 238 0.24 0.58 1.81 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 239 0.24 0.58 1.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 240 0.24 0.58 1.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 241 0.24 0.58 1.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 6/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 242 0.24 0.57 1.79 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 243 0.24 0.57 1.79 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 244 0.24 0.57 1.78 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 245 0.24 0.57 1.78 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 246 0.24 0.56 1.78 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 247 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 248 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 249 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 250 0.23 0.55 1.77 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 251 0.23 0.55 1.74 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 252 0.23 0.54 1.73 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 253 0.23 0.54 1.72 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 254 0.23 0.54 1.72 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 255 0.23 0.53 1.71 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 256 0.23 0.53 1.69 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 257 0.22 0.53 1.67 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 258 0.22 0.52 1.67 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 259 0.22 0.52 1.66 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 260 0.22 0.52 1.65 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 261 0.22 0.51 1.65 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 262 0.22 0.51 1.63 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 263 0.22 0.50 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 264 0.22 0.50 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 265 0.22 0.50 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 266 0.22 0.49 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 267 0.22 0.48 1.59 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 268 0.22 0.48 1.56 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 269 0.21 0.48 1.55 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 270 0.21 0.48 1.54 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 271 0.21 0.47 1.53 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 272 0.21 0.47 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 273 0.21 0.47 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 274 0.21 0.47 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 275 0.21 0.46 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 276 0.21 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 277 0.21 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 278 0.21 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 279 0.20 0.45 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 280 0.20 0.44 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 281 0.20 0.44 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 282 0.20 0.44 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 283 0.20 0.44 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 7/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 284 0.20 0.43 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 285 0.20 0.43 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 286 0.20 0.43 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 287 0.20 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 288 0.20 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 289 0.19 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 290 0.19 0.42 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 291 0.19 0.41 1.52 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 292 0.19 0.41 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 293 0.19 0.40 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 294 0.19 0.40 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 295 0.19 0.39 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 296 0.19 0.39 1.51 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 297 0.19 0.39 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 298 0.19 0.38 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 299 0.19 0.38 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 300 0.19 0.37 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 301 0.19 0.37 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 302 0.18 0.37 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 303 0.18 0.36 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 304 0.18 0.36 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 305 0.18 0.35 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 306 0.18 0.35 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 307 0.18 0.34 1.50 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 308 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 309 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 310 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 311 0.18 0.34 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 312 0.18 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 313 0.18 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 314 0.17 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 315 0.17 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 316 0.17 0.33 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 317 0.17 0.32 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 318 0.17 0.32 1.49 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 319 0.17 0.32 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 320 0.17 0.32 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 321 0.17 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 322 0.17 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 323 0.17 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 324 0.16 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 325 0.16 0.31 1.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 8/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 326 0.16 0.31 1.47 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 327 0.16 0.30 1.47 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 328 0.16 0.30 1.47 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 329 0.16 0.30 1.46 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 330 0.16 0.30 1.46 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 331 0.16 0.30 1.44 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 332 0.16 0.30 1.41 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 333 0.16 0.30 1.41 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 334 0.16 0.30 1.34 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 335 0.15 0.30 1.33 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 336 0.15 0.30 1.32 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 337 0.15 0.30 1.27 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 338 0.15 0.29 1.25 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 339 0.15 0.29 1.25 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 340 0.15 0.29 1.24 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 341 0.15 0.29 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 342 0.15 0.29 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 343 0.15 0.29 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 344 0.15 0.28 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 345 0.15 0.28 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 346 0.14 0.28 1.21 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 347 0.14 0.28 1.20 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 348 0.14 0.28 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 349 0.14 0.28 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 350 0.14 0.27 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 351 0.14 0.27 1.19 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 352 0.14 0.27 1.18 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 353 0.14 0.27 1.18 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 354 0.14 0.27 1.17 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 355 0.14 0.27 1.16 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 356 0.14 0.26 1.16 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 357 0.14 0.26 1.14 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 358 0.13 0.26 1.12 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 359 0.13 0.26 1.11 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 360 0.13 0.26 1.08 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 361 0.13 0.26 1.04 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 362 0.13 0.25 1.04 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 363 0.13 0.25 1.03 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 364 0.13 0.25 1.01 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 365 0.13 0.25 0.99 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 366 0.13 0.25 0.96 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 367 0.13 0.25 0.95 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 9/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 368 0.13 0.25 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 369 0.12 0.25 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 370 0.12 0.24 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 371 0.12 0.24 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 372 0.12 0.24 0.91 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 373 0.12 0.24 0.90 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 374 0.12 0.24 0.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 375 0.12 0.23 0.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 376 0.12 0.23 0.89 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 377 0.12 0.23 0.88 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 378 0.12 0.23 0.88 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 379 0.12 0.22 0.88 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 380 0.12 0.22 0.87 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 381 0.12 0.22 0.83 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 382 0.11 0.22 0.81 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 383 0.11 0.21 0.81 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 384 0.11 0.21 0.80 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 385 0.11 0.21 0.79 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 386 0.11 0.21 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 387 0.11 0.20 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 388 0.11 0.20 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 389 0.11 0.20 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 390 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 391 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 392 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 393 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 394 0.11 0.19 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 395 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 396 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 397 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 398 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 399 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 400 0.10 0.18 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 401 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 402 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 403 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 404 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 405 0.10 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 406 0.09 0.17 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 407 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 408 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 409 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 10/1110/19/2022 11:38 AM Excel Engineering peakFlowPassFailMitigated.TXT Post P T # Rt n P rd (yrs ) Post D e v Q (cf s ) Pre D e v Q (cf s ) Qp o st < Qpre Qp o st > Qpre Qp o st > 110 % Qpre Pass/F a il 410 0.09 0.16 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 411 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 412 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 413 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 414 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 415 0.09 0.15 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 416 0.09 0.14 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 417 0.09 0.14 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 418 0.08 0.14 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 419 0.08 0.14 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 420 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 421 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 422 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 423 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 424 0.08 0.13 0.76 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 425 0.08 0.13 0.74 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 426 0.08 0.13 0.72 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 427 0.08 0.13 0.66 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 428 0.08 0.13 0.65 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 429 0.07 0.13 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 430 0.07 0.12 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 431 0.07 0.11 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 432 0.07 0.11 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 433 0.07 0.10 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 434 0.07 0.09 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 435 0.07 0.08 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 436 0.07 0.07 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 437 0.07 0.06 0.61 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 438 0.07 0.06 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 439 0.07 0.05 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 440 0.07 0.04 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 441 0.07 0.03 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 442 0.07 0.02 0.58 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 443 0.07 0.02 0.56 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 444 0.07 0.01 0.56 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 445 0.07 0.01 0.53 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 446 0.07 0.00 0.53 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 447 0.07 0.00 0.48 FALSE FALSE FALSE Pass- Qpost Below Qlf (0.787 (cfs)) 11/1110/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1 1995/01/03 06:00:00 1995/01/05 03:00:00 46 17.84 0.09%58 2 2003/02/24 17:00:00 2003/02/28 00:00:00 80 14.45 0.17%29 3 1958/02/03 03:00:00 1958/02/04 17:00:00 39 13.37 0.26%19.33 4 1969/02/18 06:00:00 1969/02/25 21:00:00 184 12.97 0.34%14.5 5 2005/02/17 17:00:00 2005/02/19 10:00:00 42 12.27 0.43%11.6 6 1980/03/02 19:00:00 1980/03/03 17:00:00 23 11.92 0.52%9.67 7 1980/02/13 11:00:00 1980/02/21 07:00:00 189 11.84 0.60%8.29 8 1978/01/03 17:00:00 1978/01/06 18:00:00 74 11.8 0.69%7.25 9 1978/02/27 05:00:00 1978/03/05 03:00:00 143 11.77 0.77%6.44 10 1993/01/12 13:00:00 1993/01/18 20:00:00 152 11.68 0.86%5.8 11 1958/03/30 23:00:00 1958/04/04 11:00:00 109 11.36 0.94%5.27 12 2000/10/29 20:00:00 2000/10/31 00:00:00 29 10.97 1.03%4.83 13 1952/11/14 14:00:00 1952/11/16 12:00:00 47 10.73 1.12%4.46 14 2004/10/27 01:00:00 2004/10/28 11:00:00 35 10.69 1.20%4.14 15 1952/01/16 06:00:00 1952/01/18 11:00:00 54 10.61 1.29%3.87 16 1982/03/17 03:00:00 1982/03/18 23:00:00 45 10.49 1.37%3.63 17 1979/01/14 18:00:00 1979/01/16 03:00:00 34 9.73 1.46%3.41 18 1998/02/03 02:00:00 1998/02/04 19:00:00 42 9.62 1.55%3.22 19 1983/02/26 06:00:00 1983/03/05 02:00:00 165 9.61 1.63%3.05 20 1970/12/16 21:00:00 1970/12/19 23:00:00 75 9.57 1.72%2.9 21 1978/02/05 10:00:00 1978/02/14 00:00:00 207 9.41 1.80%2.76 22 1965/11/21 05:00:00 1965/11/23 07:00:00 51 9.39 1.89%2.64 23 1983/01/28 23:00:00 1983/01/29 13:00:00 15 9 1.97%2.52 24 2004/10/17 05:00:00 2004/10/20 21:00:00 89 8.94 2.06%2.42 25 1998/02/22 02:00:00 1998/02/25 00:00:00 71 8.72 2.15%2.32 26 1998/02/14 02:00:00 1998/02/20 18:00:00 161 8.05 2.23%2.23 27 1991/12/29 15:00:00 1991/12/30 04:00:00 14 7.99 2.32%2.15 28 2008/01/26 21:00:00 2008/01/27 23:00:00 27 7.89 2.40%2.07 29 1980/01/27 22:00:00 1980/01/30 17:00:00 68 7.87 2.49%2 30 2008/01/05 01:00:00 2008/01/07 07:00:00 55 7.83 2.58%1.93 31 1978/01/16 15:00:00 1978/01/17 03:00:00 13 7.8 2.66%1.87 32 1995/03/11 01:00:00 1995/03/12 01:00:00 25 7.5 2.75%1.81 33 1983/09/29 09:00:00 1983/10/01 12:00:00 52 7.35 2.83%1.76 34 1992/02/12 11:00:00 1992/02/13 07:00:00 21 7.34 2.92%1.71 35 1991/02/27 18:00:00 1991/03/01 11:00:00 42 7.22 3.00%1.66 36 1993/02/07 18:00:00 1993/02/09 08:00:00 39 6.92 3.09%1.61 37 1985/11/11 04:00:00 1985/11/12 09:00:00 30 6.69 3.18%1.57 38 1961/12/01 18:00:00 1961/12/03 04:00:00 35 6.45 3.26%1.53 39 1977/08/16 15:00:00 1977/08/18 01:00:00 35 6 3.35%1.49 Peak Flow Statistics Table Values SWMM.out file name: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out SWMM.out time stamp: 1/16/2020 2:53:23 PM Q10: 11.980 (cfs) Q5: 11.120 (cfs) Q2: 7.870 (cfs) 1/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 40 2004/12/31 13:00:00 2005/01/01 11:00:00 23 6 3.43%1.45 41 1986/02/14 22:00:00 1986/02/15 10:00:00 13 5.93 3.52%1.42 42 2002/11/08 02:00:00 2002/11/09 19:00:00 42 5.76 3.61%1.38 43 2003/02/11 02:00:00 2003/02/14 18:00:00 89 5.76 3.69%1.35 44 1979/01/05 07:00:00 1979/01/06 15:00:00 33 5.7 3.78%1.32 45 1994/02/03 18:00:00 1994/02/05 02:00:00 33 5.65 3.86%1.29 46 1958/02/19 06:00:00 1958/02/19 17:00:00 12 5.3 3.95%1.26 47 2005/01/07 05:00:00 2005/01/12 04:00:00 120 5.29 4.03%1.23 48 1986/03/15 21:00:00 1986/03/17 03:00:00 31 5.26 4.12%1.21 49 1968/03/07 20:00:00 1968/03/08 15:00:00 20 5.13 4.21%1.18 50 1993/02/18 10:00:00 1993/02/20 14:00:00 53 5.13 4.29%1.16 51 1963/09/17 03:00:00 1963/09/18 22:00:00 44 5.1 4.38%1.14 52 1988/12/24 19:00:00 1988/12/25 00:00:00 6 5.07 4.46%1.12 53 1980/01/09 01:00:00 1980/01/12 13:00:00 85 5.06 4.55%1.09 54 1965/12/09 05:00:00 1965/12/10 11:00:00 31 5.05 4.64%1.07 55 2005/02/21 02:00:00 2005/02/23 08:00:00 55 5.05 4.72%1.06 56 2008/02/20 08:00:00 2008/02/22 14:00:00 55 5.05 4.81%1.04 57 1991/03/25 02:00:00 1991/03/27 06:00:00 53 5.03 4.89%1.02 58 1960/04/27 03:00:00 1960/04/27 12:00:00 10 4.93 4.98%1 59 1971/12/24 06:00:00 1971/12/25 23:00:00 42 4.82 5.06%0.98 60 2001/02/12 15:00:00 2001/02/15 02:00:00 60 4.81 5.15%0.97 61 2003/03/15 02:00:00 2003/03/17 02:00:00 49 4.8 5.24%0.95 62 2005/04/28 06:00:00 2005/04/28 10:00:00 5 4.8 5.32%0.94 63 1978/01/14 14:00:00 1978/01/15 06:00:00 17 4.75 5.41%0.92 64 1954/02/13 14:00:00 1954/02/14 16:00:00 27 4.65 5.49%0.91 65 1962/01/20 11:00:00 1962/01/22 22:00:00 60 4.6 5.58%0.89 66 1982/12/22 08:00:00 1982/12/23 09:00:00 26 4.53 5.67%0.88 67 2007/01/30 12:00:00 2007/01/31 06:00:00 19 4.53 5.75%0.87 68 1972/01/16 18:00:00 1972/01/17 09:00:00 16 4.42 5.84%0.85 69 1960/01/10 09:00:00 1960/01/12 09:00:00 49 4.33 5.92%0.84 70 1963/03/16 21:00:00 1963/03/17 23:00:00 27 4.15 6.01%0.83 71 1999/01/25 04:00:00 1999/01/27 06:00:00 51 4.07 6.09%0.82 72 1977/12/28 01:00:00 1977/12/30 03:00:00 51 4 6.18%0.81 73 2005/01/03 05:00:00 2005/01/05 11:00:00 55 3.91 6.27%0.8 74 2006/10/13 23:00:00 2006/10/14 02:00:00 4 3.9 6.35%0.78 75 1969/02/05 06:00:00 1969/02/06 20:00:00 39 3.8 6.44%0.77 76 1979/11/07 18:00:00 1979/11/08 05:00:00 12 3.79 6.52%0.76 77 1983/12/24 08:00:00 1983/12/27 09:00:00 74 3.77 6.61%0.75 78 1981/03/19 19:00:00 1981/03/20 04:00:00 10 3.76 6.70%0.74 79 1978/09/05 16:00:00 1978/09/06 13:00:00 22 3.75 6.78%0.73 80 1966/12/03 01:00:00 1966/12/07 00:00:00 96 3.7 6.87%0.73 81 2003/04/13 17:00:00 2003/04/15 19:00:00 51 3.61 6.95%0.72 82 2001/01/26 11:00:00 2001/01/27 22:00:00 36 3.54 7.04%0.71 83 1975/04/05 20:00:00 1975/04/09 10:00:00 87 3.51 7.12%0.7 84 1954/01/18 09:00:00 1954/01/20 07:00:00 47 3.46 7.21%0.69 85 1987/10/11 10:00:00 1987/10/12 21:00:00 36 3.35 7.30%0.68 86 1968/12/24 17:00:00 1968/12/26 12:00:00 44 3.32 7.38%0.67 2/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 87 1954/03/16 20:00:00 1954/03/17 21:00:00 26 3.29 7.47%0.67 88 1997/01/12 13:00:00 1997/01/14 02:00:00 38 3.28 7.55%0.66 89 1993/06/05 12:00:00 1993/06/05 17:00:00 6 3.27 7.64%0.65 90 1959/02/11 06:00:00 1959/02/12 07:00:00 26 3.24 7.73%0.64 91 1959/12/24 06:00:00 1959/12/25 06:00:00 25 3.23 7.81%0.64 92 1952/12/02 00:00:00 1952/12/02 02:00:00 3 3.2 7.90%0.63 93 1957/01/13 02:00:00 1957/01/13 14:00:00 13 3.18 7.98%0.62 94 1952/03/15 18:00:00 1952/03/16 19:00:00 26 3.15 8.07%0.62 95 1967/01/22 12:00:00 1967/01/23 04:00:00 17 3.1 8.15%0.61 96 1967/11/19 07:00:00 1967/11/20 04:00:00 22 3.05 8.24%0.6 97 1986/11/17 16:00:00 1986/11/18 08:00:00 17 3.05 8.33%0.6 98 2004/12/28 06:00:00 2004/12/30 11:00:00 54 3.05 8.41%0.59 99 1988/01/17 03:00:00 1988/01/17 22:00:00 20 3.04 8.50%0.59 100 1958/01/24 23:00:00 1958/01/27 11:00:00 61 3.03 8.58%0.58 101 1983/01/27 07:00:00 1983/01/27 14:00:00 8 3.03 8.67%0.57 102 1991/03/19 00:00:00 1991/03/19 05:00:00 6 3.03 8.76%0.57 103 1967/12/18 14:00:00 1967/12/20 09:00:00 44 3.02 8.84%0.56 104 1983/11/24 19:00:00 1983/11/25 02:00:00 8 3.02 8.93%0.56 105 1987/12/04 20:00:00 1987/12/05 02:00:00 7 3.02 9.01%0.55 106 1988/11/25 06:00:00 1988/11/25 11:00:00 6 3.02 9.10%0.55 107 1992/02/15 12:00:00 1992/02/16 12:00:00 25 3.02 9.18%0.54 108 1992/03/20 17:00:00 1992/03/23 15:00:00 71 3.02 9.27%0.54 109 1990/02/17 08:00:00 1990/02/18 23:00:00 40 3.01 9.36%0.53 110 1991/01/09 12:00:00 1991/01/09 16:00:00 5 3.01 9.44%0.53 111 1993/11/30 03:00:00 1993/11/30 13:00:00 11 3.01 9.53%0.52 112 2004/02/21 17:00:00 2004/02/23 08:00:00 40 3.01 9.61%0.52 113 1954/11/10 21:00:00 1954/11/12 09:00:00 37 3 9.70%0.51 114 1973/11/22 19:00:00 1973/11/23 06:00:00 12 3 9.79%0.51 115 1981/11/26 20:00:00 1981/11/29 02:00:00 55 3 9.87%0.5 116 1978/03/30 10:00:00 1978/04/01 01:00:00 40 2.99 9.96%0.5 117 1979/03/17 02:00:00 1979/03/17 09:00:00 8 2.99 10.04%0.5 118 1957/05/10 05:00:00 1957/05/11 11:00:00 31 2.98 10.13%0.49 119 1976/09/09 23:00:00 1976/09/11 06:00:00 32 2.98 10.21%0.49 120 2007/04/20 13:00:00 2007/04/20 17:00:00 5 2.98 10.30%0.48 121 2004/02/25 23:00:00 2004/02/27 10:00:00 36 2.91 10.39%0.48 122 1958/03/15 13:00:00 1958/03/16 13:00:00 25 2.88 10.47%0.48 123 1952/11/30 00:00:00 1952/11/30 07:00:00 8 2.85 10.56%0.47 124 1967/11/30 14:00:00 1967/11/30 17:00:00 4 2.78 10.64%0.47 125 1973/03/20 04:00:00 1973/03/20 12:00:00 9 2.76 10.73%0.46 126 1968/04/01 19:00:00 1968/04/02 10:00:00 16 2.75 10.82%0.46 127 1995/01/10 13:00:00 1995/01/12 21:00:00 57 2.73 10.90%0.46 128 1994/03/24 20:00:00 1994/03/25 21:00:00 26 2.72 10.99%0.45 129 2007/11/30 06:00:00 2007/12/01 02:00:00 21 2.72 11.07%0.45 130 1998/11/08 06:00:00 1998/11/08 15:00:00 10 2.71 11.16%0.45 131 2001/01/10 18:00:00 2001/01/12 12:00:00 43 2.63 11.24%0.44 132 1967/03/12 14:00:00 1967/03/14 13:00:00 48 2.62 11.33%0.44 133 1960/02/01 18:00:00 1960/02/02 02:00:00 9 2.57 11.42%0.44 3/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 134 1963/11/20 01:00:00 1963/11/21 07:00:00 31 2.55 11.50%0.43 135 1971/04/14 09:00:00 1971/04/14 14:00:00 6 2.54 11.59%0.43 136 1967/04/11 06:00:00 1967/04/11 18:00:00 13 2.47 11.67%0.43 137 1970/02/28 08:00:00 1970/03/02 07:00:00 48 2.47 11.76%0.42 138 1972/11/14 12:00:00 1972/11/14 17:00:00 6 2.47 11.85%0.42 139 1960/02/28 16:00:00 1960/03/01 09:00:00 42 2.43 11.93%0.42 140 1993/01/30 23:00:00 1993/01/31 01:00:00 3 2.43 12.02%0.41 141 1995/01/23 01:00:00 1995/01/26 10:00:00 82 2.43 12.10%0.41 142 1996/11/21 15:00:00 1996/11/22 08:00:00 18 2.43 12.19%0.41 143 2004/04/01 21:00:00 2004/04/01 23:00:00 3 2.43 12.27%0.41 144 1995/03/03 06:00:00 1995/03/06 06:00:00 73 2.4 12.36%0.4 145 2003/12/24 22:00:00 2003/12/25 20:00:00 23 2.4 12.45%0.4 146 2006/12/09 20:00:00 2006/12/11 02:00:00 31 2.4 12.53%0.4 147 2006/03/10 15:00:00 2006/03/11 17:00:00 27 2.39 12.62%0.4 148 1964/01/21 04:00:00 1964/01/23 18:00:00 63 2.33 12.70%0.39 149 1964/11/17 07:00:00 1964/11/17 20:00:00 14 2.32 12.79%0.39 150 1978/03/09 16:00:00 1978/03/09 18:00:00 3 2.27 12.88%0.39 151 1980/10/16 04:00:00 1980/10/16 07:00:00 4 2.27 12.96%0.38 152 1982/04/01 09:00:00 1982/04/01 18:00:00 10 2.27 13.05%0.38 153 1982/12/07 21:00:00 1982/12/08 01:00:00 5 2.27 13.13%0.38 154 1983/04/20 03:00:00 1983/04/21 11:00:00 33 2.27 13.22%0.38 155 1985/12/11 02:00:00 1985/12/11 10:00:00 9 2.27 13.30%0.37 156 1987/04/04 05:00:00 1987/04/04 17:00:00 13 2.27 13.39%0.37 157 1987/12/16 11:00:00 1987/12/17 10:00:00 24 2.27 13.48%0.37 158 1988/08/24 04:00:00 1988/08/24 16:00:00 13 2.27 13.56%0.37 159 1988/11/14 06:00:00 1988/11/14 09:00:00 4 2.27 13.65%0.37 160 1991/03/20 07:00:00 1991/03/21 10:00:00 28 2.27 13.73%0.36 161 1966/02/06 09:00:00 1966/02/08 07:00:00 47 2.26 13.82%0.36 162 1977/01/02 21:00:00 1977/01/03 05:00:00 9 2.26 13.91%0.36 163 1980/03/05 22:00:00 1980/03/06 13:00:00 16 2.26 13.99%0.36 164 1981/01/28 05:00:00 1981/01/28 15:00:00 11 2.26 14.08%0.35 165 1981/01/29 16:00:00 1981/01/30 12:00:00 21 2.26 14.16%0.35 166 1982/01/01 05:00:00 1982/01/02 10:00:00 30 2.26 14.25%0.35 167 1982/01/20 02:00:00 1982/01/21 13:00:00 36 2.26 14.33%0.35 168 1985/11/29 05:00:00 1985/11/29 14:00:00 10 2.26 14.42%0.35 169 1988/12/20 22:00:00 1988/12/21 07:00:00 10 2.26 14.51%0.34 170 1990/01/16 23:00:00 1990/01/17 07:00:00 9 2.26 14.59%0.34 171 1997/01/15 14:00:00 1997/01/15 20:00:00 7 2.26 14.68%0.34 172 1965/12/29 06:00:00 1965/12/29 21:00:00 16 2.25 14.76%0.34 173 1978/01/09 14:00:00 1978/01/11 00:00:00 35 2.25 14.85%0.34 174 1985/11/24 14:00:00 1985/11/25 16:00:00 27 2.25 14.94%0.33 175 1957/02/28 16:00:00 1957/03/01 13:00:00 22 2.24 15.02%0.33 176 1972/11/16 07:00:00 1972/11/17 14:00:00 32 2.24 15.11%0.33 177 1990/04/04 07:00:00 1990/04/04 13:00:00 7 2.24 15.19%0.33 178 1956/04/12 16:00:00 1956/04/13 18:00:00 27 2.23 15.28%0.33 179 1976/07/08 09:00:00 1976/07/08 15:00:00 7 2.23 15.36%0.32 180 1979/03/18 21:00:00 1979/03/21 07:00:00 59 2.23 15.45%0.32 4/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 181 1983/03/24 02:00:00 1983/03/25 09:00:00 32 2.23 15.54%0.32 182 1984/10/17 05:00:00 1984/10/17 08:00:00 4 2.23 15.62%0.32 183 1988/04/14 17:00:00 1988/04/15 01:00:00 9 2.23 15.71%0.32 184 1988/04/19 23:00:00 1988/04/21 08:00:00 34 2.23 15.79%0.32 185 1976/07/22 10:00:00 1976/07/22 14:00:00 5 2.22 15.88%0.31 186 1986/09/23 23:00:00 1986/09/25 06:00:00 32 2.22 15.97%0.31 187 1974/12/04 02:00:00 1974/12/04 14:00:00 13 2.2 16.05%0.31 188 2002/12/20 02:00:00 2002/12/21 23:00:00 46 2.18 16.14%0.31 189 1965/03/31 11:00:00 1965/04/01 21:00:00 35 2.17 16.22%0.31 190 1965/11/14 06:00:00 1965/11/18 17:00:00 108 2.17 16.31%0.31 191 1975/03/08 06:00:00 1975/03/08 23:00:00 18 2.17 16.39%0.3 192 2001/02/25 02:00:00 2001/02/28 21:00:00 92 2.17 16.48%0.3 193 1957/03/16 08:00:00 1957/03/16 14:00:00 7 2.16 16.57%0.3 194 1958/03/20 15:00:00 1958/03/22 12:00:00 46 2.16 16.65%0.3 195 1958/09/23 21:00:00 1958/09/24 07:00:00 11 2.15 16.74%0.3 196 1965/04/03 03:00:00 1965/04/05 11:00:00 57 2.15 16.82%0.3 197 1953/03/01 01:00:00 1953/03/02 02:00:00 26 2.12 16.91%0.29 198 1963/04/26 02:00:00 1963/04/26 09:00:00 8 2.12 17.00%0.29 199 1973/02/15 11:00:00 1973/02/15 15:00:00 5 2.12 17.08%0.29 200 1993/03/25 23:00:00 1993/03/26 13:00:00 15 2.12 17.17%0.29 201 1994/03/19 02:00:00 1994/03/20 07:00:00 30 2.12 17.25%0.29 202 1956/01/25 12:00:00 1956/01/27 09:00:00 46 2.11 17.34%0.29 203 1955/01/10 03:00:00 1955/01/11 01:00:00 23 2.1 17.42%0.29 204 1960/01/25 19:00:00 1960/01/26 06:00:00 12 2.1 17.51%0.28 205 1976/03/01 13:00:00 1976/03/01 20:00:00 8 2.1 17.60%0.28 206 1992/12/07 07:00:00 1992/12/08 03:00:00 21 2.1 17.68%0.28 207 1998/01/29 02:00:00 1998/01/31 18:00:00 65 2.1 17.77%0.28 208 1960/11/05 19:00:00 1960/11/06 12:00:00 18 2.09 17.85%0.28 209 2004/02/02 22:00:00 2004/02/04 00:00:00 27 2.09 17.94%0.28 210 1994/03/06 04:00:00 1994/03/07 09:00:00 30 2.08 18.03%0.28 211 1995/04/18 09:00:00 1995/04/18 18:00:00 10 2.07 18.11%0.28 212 2001/04/07 02:00:00 2001/04/08 02:00:00 25 2.07 18.20%0.27 213 2007/08/26 10:00:00 2007/08/26 12:00:00 3 2.07 18.28%0.27 214 1955/01/18 14:00:00 1955/01/20 07:00:00 42 2.04 18.37%0.27 215 1954/12/09 21:00:00 1954/12/10 11:00:00 15 2.02 18.45%0.27 216 1960/01/14 15:00:00 1960/01/15 09:00:00 19 2.02 18.54%0.27 217 1969/11/06 17:00:00 1969/11/07 11:00:00 19 2.02 18.63%0.27 218 1971/02/16 17:00:00 1971/02/17 12:00:00 20 2.02 18.71%0.27 219 1965/04/07 03:00:00 1965/04/10 11:00:00 81 2 18.80%0.27 220 1966/11/07 12:00:00 1966/11/08 08:00:00 21 1.97 18.88%0.26 221 1951/12/28 18:00:00 1951/12/30 15:00:00 46 1.96 18.97%0.26 222 1959/01/06 00:00:00 1959/01/06 09:00:00 10 1.95 19.06%0.26 223 1959/12/09 20:00:00 1959/12/10 07:00:00 12 1.95 19.14%0.26 224 1966/01/30 06:00:00 1966/01/31 02:00:00 21 1.95 19.23%0.26 225 1970/12/21 03:00:00 1970/12/22 05:00:00 27 1.95 19.31%0.26 226 1976/02/03 17:00:00 1976/02/10 19:00:00 171 1.95 19.40%0.26 227 2002/12/16 02:00:00 2002/12/17 18:00:00 41 1.95 19.48%0.26 5/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 228 1998/02/06 04:00:00 1998/02/09 18:00:00 87 1.94 19.57%0.25 229 1962/03/18 16:00:00 1962/03/20 06:00:00 39 1.93 19.66%0.25 230 1952/12/30 19:00:00 1952/12/31 11:00:00 17 1.9 19.74%0.25 231 1957/01/26 03:00:00 1957/01/29 23:00:00 93 1.89 19.83%0.25 232 1969/01/24 04:00:00 1969/01/26 21:00:00 66 1.89 19.91%0.25 233 1951/11/22 20:00:00 1951/11/23 06:00:00 11 1.87 20.00%0.25 234 1997/12/06 02:00:00 1997/12/07 21:00:00 44 1.87 20.09%0.25 235 1952/03/07 05:00:00 1952/03/08 10:00:00 30 1.86 20.17%0.25 236 1952/11/22 23:00:00 1952/11/23 12:00:00 14 1.86 20.26%0.25 237 1958/04/06 17:00:00 1958/04/07 17:00:00 25 1.85 20.34%0.25 238 1993/01/06 00:00:00 1993/01/09 06:00:00 79 1.82 20.43%0.24 239 1994/02/17 06:00:00 1994/02/19 02:00:00 45 1.81 20.52%0.24 240 1967/11/21 11:00:00 1967/11/22 04:00:00 18 1.8 20.60%0.24 241 1996/10/30 12:00:00 1996/10/30 18:00:00 7 1.8 20.69%0.24 242 2001/12/09 02:00:00 2001/12/10 02:00:00 25 1.8 20.77%0.24 243 1963/02/09 15:00:00 1963/02/11 09:00:00 43 1.79 20.86%0.24 244 1969/03/21 11:00:00 1969/03/21 22:00:00 12 1.79 20.94%0.24 245 1954/03/30 00:00:00 1954/03/30 08:00:00 9 1.78 21.03%0.24 246 1959/04/26 00:00:00 1959/04/26 08:00:00 9 1.78 21.12%0.24 247 2000/03/04 10:00:00 2000/03/08 20:00:00 107 1.78 21.20%0.24 248 1960/09/11 02:00:00 1960/09/11 09:00:00 8 1.77 21.29%0.23 249 1993/03/28 01:00:00 1993/03/28 04:00:00 4 1.77 21.37%0.23 250 1995/04/16 05:00:00 1995/04/17 05:00:00 25 1.77 21.46%0.23 251 2006/03/28 05:00:00 2006/03/29 09:00:00 29 1.77 21.55%0.23 252 1974/03/27 07:00:00 1974/03/27 09:00:00 3 1.74 21.63%0.23 253 1951/12/11 15:00:00 1951/12/12 12:00:00 22 1.73 21.72%0.23 254 1957/01/05 02:00:00 1957/01/05 14:00:00 13 1.72 21.80%0.23 255 1987/02/23 13:00:00 1987/02/26 00:00:00 60 1.72 21.89%0.23 256 1965/02/05 22:00:00 1965/02/06 23:00:00 26 1.71 21.97%0.23 257 1973/02/11 04:00:00 1973/02/13 05:00:00 50 1.71 22.06%0.23 258 1969/04/05 20:00:00 1969/04/06 00:00:00 5 1.69 22.15%0.23 259 1973/02/28 01:00:00 1973/02/28 08:00:00 8 1.67 22.23%0.22 260 1973/03/05 08:00:00 1973/03/07 01:00:00 42 1.67 22.32%0.22 261 1970/11/28 18:00:00 1970/12/01 00:00:00 55 1.66 22.40%0.22 262 1958/02/25 06:00:00 1958/02/25 10:00:00 5 1.65 22.49%0.22 263 2001/11/24 02:00:00 2001/11/25 02:00:00 25 1.64 22.58%0.22 264 1960/11/12 22:00:00 1960/11/13 00:00:00 3 1.63 22.66%0.22 265 1952/01/13 01:00:00 1952/01/13 15:00:00 15 1.59 22.75%0.22 266 1957/12/05 01:00:00 1957/12/05 21:00:00 21 1.59 22.83%0.22 267 1959/02/21 09:00:00 1959/02/22 01:00:00 17 1.59 22.92%0.22 268 1962/02/19 10:00:00 1962/02/21 09:00:00 48 1.59 23.00%0.22 269 1952/02/29 10:00:00 1952/03/01 13:00:00 28 1.56 23.09%0.22 270 1959/02/16 02:00:00 1959/02/17 05:00:00 28 1.56 23.18%0.22 271 1974/03/07 09:00:00 1974/03/08 14:00:00 30 1.55 23.26%0.21 272 1998/05/12 02:00:00 1998/05/13 18:00:00 41 1.54 23.35%0.21 273 1951/08/28 06:00:00 1951/08/30 07:00:00 50 1.53 23.43%0.21 274 1953/02/23 09:00:00 1953/02/23 21:00:00 13 1.52 23.52%0.21 6/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 275 1958/03/06 09:00:00 1958/03/07 01:00:00 17 1.52 23.61%0.21 276 1977/03/24 21:00:00 1977/03/25 15:00:00 19 1.52 23.69%0.21 277 1977/05/07 21:00:00 1977/05/09 09:00:00 37 1.52 23.78%0.21 278 1977/05/24 04:00:00 1977/05/24 09:00:00 6 1.52 23.86%0.21 279 1979/02/14 03:00:00 1979/02/14 06:00:00 4 1.52 23.95%0.21 280 1981/02/25 19:00:00 1981/02/26 00:00:00 6 1.52 24.03%0.21 281 1982/01/10 19:00:00 1982/01/11 05:00:00 11 1.52 24.12%0.21 282 1982/03/14 12:00:00 1982/03/15 00:00:00 13 1.52 24.21%0.21 283 1983/02/06 11:00:00 1983/02/08 07:00:00 45 1.52 24.29%0.21 284 1983/03/06 05:00:00 1983/03/06 21:00:00 17 1.52 24.38%0.2 285 1983/11/11 17:00:00 1983/11/13 01:00:00 33 1.52 24.46%0.2 286 1983/12/09 16:00:00 1983/12/09 17:00:00 2 1.52 24.55%0.2 287 1984/04/27 21:00:00 1984/04/27 23:00:00 3 1.52 24.64%0.2 288 1984/11/13 08:00:00 1984/11/13 09:00:00 2 1.52 24.72%0.2 289 1984/12/07 23:00:00 1984/12/08 02:00:00 4 1.52 24.81%0.2 290 1985/10/21 23:00:00 1985/10/22 00:00:00 2 1.52 24.89%0.2 291 1986/01/31 18:00:00 1986/01/31 23:00:00 6 1.52 24.98%0.2 292 1986/03/08 15:00:00 1986/03/09 00:00:00 10 1.52 25.06%0.2 293 1986/10/09 19:00:00 1986/10/10 01:00:00 7 1.52 25.15%0.2 294 1990/01/31 00:00:00 1990/01/31 02:00:00 3 1.52 25.24%0.2 295 1991/10/26 23:00:00 1991/10/27 12:00:00 14 1.52 25.32%0.2 296 1992/03/08 01:00:00 1992/03/08 11:00:00 11 1.52 25.41%0.2 297 1992/03/27 05:00:00 1992/03/27 06:00:00 2 1.52 25.49%0.2 298 1994/01/24 22:00:00 1994/01/26 06:00:00 33 1.52 25.58%0.2 299 1994/01/27 14:00:00 1994/01/27 15:00:00 2 1.52 25.67%0.19 300 1996/02/25 08:00:00 1996/02/26 19:00:00 36 1.52 25.75%0.19 301 2006/02/17 21:00:00 2006/02/19 11:00:00 39 1.52 25.84%0.19 302 1961/01/26 07:00:00 1961/01/26 19:00:00 13 1.51 25.92%0.19 303 1978/12/16 22:00:00 1978/12/19 17:00:00 68 1.51 26.01%0.19 304 1981/12/30 06:00:00 1981/12/31 04:00:00 23 1.51 26.09%0.19 305 1984/12/26 13:00:00 1984/12/27 21:00:00 33 1.51 26.18%0.19 306 1992/01/05 08:00:00 1992/01/06 05:00:00 22 1.51 26.27%0.19 307 1992/01/07 07:00:00 1992/01/08 11:00:00 29 1.51 26.35%0.19 308 1955/02/26 10:00:00 1955/02/27 21:00:00 36 1.5 26.44%0.19 309 1972/01/18 21:00:00 1972/01/19 04:00:00 8 1.5 26.52%0.19 310 1976/12/30 13:00:00 1976/12/31 10:00:00 22 1.5 26.61%0.19 311 1977/01/05 13:00:00 1977/01/07 07:00:00 43 1.5 26.70%0.19 312 1977/12/17 23:00:00 1977/12/18 07:00:00 9 1.5 26.78%0.19 313 1980/01/17 18:00:00 1980/01/19 02:00:00 33 1.5 26.87%0.19 314 1980/12/07 10:00:00 1980/12/07 13:00:00 4 1.5 26.95%0.19 315 1982/01/05 04:00:00 1982/01/05 17:00:00 14 1.5 27.04%0.18 316 1982/01/28 16:00:00 1982/01/29 01:00:00 10 1.5 27.12%0.18 317 1983/12/03 14:00:00 1983/12/03 21:00:00 8 1.5 27.21%0.18 318 1984/12/16 02:00:00 1984/12/16 04:00:00 3 1.5 27.30%0.18 319 1984/12/18 06:00:00 1984/12/20 04:00:00 47 1.5 27.38%0.18 320 1986/01/30 02:00:00 1986/01/30 13:00:00 12 1.5 27.47%0.18 321 1987/01/05 09:00:00 1987/01/07 06:00:00 46 1.5 27.55%0.18 7/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 322 1988/12/15 08:00:00 1988/12/16 15:00:00 32 1.5 27.64%0.18 323 1995/01/07 11:00:00 1995/01/08 11:00:00 25 1.5 27.73%0.18 324 1957/10/13 19:00:00 1957/10/14 13:00:00 19 1.49 27.81%0.18 325 1959/12/20 22:00:00 1959/12/21 11:00:00 14 1.49 27.90%0.18 326 1972/11/11 00:00:00 1972/11/11 11:00:00 12 1.49 27.98%0.18 327 1978/01/19 05:00:00 1978/01/19 12:00:00 8 1.49 28.07%0.18 328 1978/11/21 16:00:00 1978/11/22 01:00:00 10 1.49 28.15%0.18 329 1979/01/30 17:00:00 1979/02/02 19:00:00 75 1.49 28.24%0.18 330 1979/02/21 00:00:00 1979/02/21 07:00:00 8 1.49 28.33%0.18 331 1981/02/08 16:00:00 1981/02/09 07:00:00 16 1.49 28.41%0.18 332 1982/02/09 18:00:00 1982/02/10 20:00:00 27 1.49 28.50%0.18 333 1982/11/09 14:00:00 1982/11/10 23:00:00 34 1.49 28.58%0.17 334 1984/11/24 15:00:00 1984/11/24 21:00:00 7 1.49 28.67%0.17 335 1985/02/09 04:00:00 1985/02/09 13:00:00 10 1.49 28.76%0.17 336 1986/03/10 05:00:00 1986/03/11 04:00:00 24 1.49 28.84%0.17 337 1992/02/06 06:00:00 1992/02/07 12:00:00 31 1.49 28.93%0.17 338 1994/02/07 02:00:00 1994/02/08 07:00:00 30 1.49 29.01%0.17 339 1996/02/20 05:00:00 1996/02/22 00:00:00 44 1.49 29.10%0.17 340 1997/01/25 14:00:00 1997/01/27 07:00:00 42 1.49 29.18%0.17 341 2005/02/11 01:00:00 2005/02/13 08:00:00 56 1.49 29.27%0.17 342 2006/02/27 18:00:00 2006/02/28 11:00:00 18 1.49 29.36%0.17 343 1973/03/08 10:00:00 1973/03/08 16:00:00 7 1.48 29.44%0.17 344 1973/03/11 01:00:00 1973/03/12 10:00:00 34 1.48 29.53%0.17 345 1978/03/11 17:00:00 1978/03/12 11:00:00 19 1.48 29.61%0.17 346 1979/03/01 07:00:00 1979/03/01 18:00:00 12 1.48 29.70%0.17 347 1979/03/27 03:00:00 1979/03/28 10:00:00 32 1.48 29.79%0.17 348 1980/03/10 14:00:00 1980/03/10 17:00:00 4 1.48 29.87%0.17 349 1980/03/25 21:00:00 1980/03/26 01:00:00 5 1.48 29.96%0.17 350 1981/02/28 11:00:00 1981/03/03 02:00:00 64 1.48 30.04%0.17 351 1981/03/05 01:00:00 1981/03/05 21:00:00 21 1.48 30.13%0.17 352 1983/03/17 01:00:00 1983/03/19 01:00:00 49 1.48 30.21%0.17 353 1983/03/21 03:00:00 1983/03/22 21:00:00 43 1.48 30.30%0.16 354 1989/03/25 09:00:00 1989/03/26 06:00:00 22 1.48 30.39%0.16 355 1992/03/02 05:00:00 1992/03/02 20:00:00 16 1.48 30.47%0.16 356 1964/03/22 19:00:00 1964/03/24 11:00:00 41 1.47 30.56%0.16 357 1976/04/15 14:00:00 1976/04/16 11:00:00 22 1.47 30.64%0.16 358 1980/04/22 10:00:00 1980/04/23 05:00:00 20 1.47 30.73%0.16 359 1982/09/26 02:00:00 1982/09/26 17:00:00 16 1.47 30.82%0.16 360 1983/04/18 01:00:00 1983/04/18 09:00:00 9 1.47 30.90%0.16 361 1983/04/29 05:00:00 1983/04/30 02:00:00 22 1.47 30.99%0.16 362 1975/04/16 11:00:00 1975/04/17 09:00:00 23 1.46 31.07%0.16 363 1976/07/15 11:00:00 1976/07/15 17:00:00 7 1.46 31.16%0.16 364 1976/08/30 09:00:00 1976/08/30 13:00:00 5 1.46 31.24%0.16 365 2000/04/17 16:00:00 2000/04/18 10:00:00 19 1.46 31.33%0.16 366 1967/04/18 18:00:00 1967/04/20 10:00:00 41 1.44 31.42%0.16 367 1957/12/15 07:00:00 1957/12/17 07:00:00 49 1.42 31.50%0.16 368 1974/01/07 13:00:00 1974/01/09 17:00:00 53 1.42 31.59%0.16 8/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 369 1963/11/15 15:00:00 1963/11/15 20:00:00 6 1.41 31.67%0.16 370 1971/02/23 02:00:00 1971/02/23 05:00:00 4 1.41 31.76%0.16 371 2000/02/20 02:00:00 2000/02/24 18:00:00 113 1.41 31.85%0.16 372 1957/10/30 20:00:00 1957/10/31 07:00:00 12 1.4 31.93%0.16 373 1962/01/12 23:00:00 1962/01/13 02:00:00 4 1.34 32.02%0.16 374 1998/01/09 02:00:00 1998/01/11 18:00:00 65 1.34 32.10%0.16 375 1955/02/16 17:00:00 1955/02/18 08:00:00 40 1.33 32.19%0.16 376 1970/03/04 20:00:00 1970/03/05 06:00:00 11 1.33 32.27%0.15 377 1973/02/06 01:00:00 1973/02/07 05:00:00 29 1.33 32.36%0.15 378 1954/03/20 08:00:00 1954/03/25 12:00:00 125 1.32 32.45%0.15 379 1958/03/27 12:00:00 1958/03/27 16:00:00 5 1.32 32.53%0.15 380 1964/10/15 10:00:00 1964/10/15 13:00:00 4 1.32 32.62%0.15 381 1956/01/31 03:00:00 1956/01/31 12:00:00 10 1.27 32.70%0.15 382 1962/02/07 14:00:00 1962/02/11 08:00:00 91 1.26 32.79%0.15 383 1953/10/22 04:00:00 1953/10/22 10:00:00 7 1.25 32.88%0.15 384 1957/04/20 13:00:00 1957/04/21 08:00:00 20 1.25 32.96%0.15 385 1966/10/10 11:00:00 1966/10/10 16:00:00 6 1.25 33.05%0.15 386 1998/03/25 02:00:00 1998/03/29 20:00:00 115 1.25 33.13%0.15 387 1998/03/31 02:00:00 1998/04/03 18:00:00 89 1.25 33.22%0.15 388 1952/04/10 09:00:00 1952/04/10 23:00:00 15 1.24 33.30%0.15 389 1955/04/22 00:00:00 1955/04/22 11:00:00 12 1.24 33.39%0.15 390 1955/04/30 18:00:00 1955/05/02 11:00:00 42 1.24 33.48%0.15 391 1964/12/31 21:00:00 1964/12/31 23:00:00 3 1.21 33.56%0.15 392 1992/12/18 01:00:00 1992/12/18 02:00:00 2 1.21 33.65%0.15 393 1995/01/15 00:00:00 1995/01/17 09:00:00 58 1.21 33.73%0.15 394 1996/01/21 18:00:00 1996/01/22 08:00:00 15 1.21 33.82%0.15 395 1999/09/18 16:00:00 1999/09/18 17:00:00 2 1.21 33.91%0.15 396 2000/10/26 08:00:00 2000/10/27 10:00:00 27 1.21 33.99%0.15 397 2000/11/30 08:00:00 2000/11/30 09:00:00 2 1.21 34.08%0.15 398 2004/11/21 06:00:00 2004/11/21 08:00:00 3 1.21 34.16%0.15 399 2005/09/20 04:00:00 2005/09/20 06:00:00 3 1.21 34.25%0.15 400 2005/10/16 17:00:00 2005/10/18 11:00:00 43 1.21 34.33%0.15 401 2006/03/20 02:00:00 2006/03/21 05:00:00 28 1.21 34.42%0.15 402 2006/04/04 16:00:00 2006/04/05 08:00:00 17 1.21 34.51%0.14 403 2006/12/27 07:00:00 2006/12/27 08:00:00 2 1.21 34.59%0.14 404 1957/01/07 05:00:00 1957/01/08 10:00:00 30 1.2 34.68%0.14 405 1965/01/24 05:00:00 1965/01/24 10:00:00 6 1.2 34.76%0.14 406 1992/12/27 16:00:00 1992/12/28 04:00:00 13 1.2 34.85%0.14 407 1952/12/20 09:00:00 1952/12/20 16:00:00 8 1.19 34.94%0.14 408 1954/01/11 17:00:00 1954/01/13 07:00:00 39 1.19 35.02%0.14 409 1961/11/20 13:00:00 1961/11/20 21:00:00 9 1.19 35.11%0.14 410 1996/01/31 02:00:00 1996/02/02 00:00:00 47 1.19 35.19%0.14 411 1996/02/27 20:00:00 1996/02/27 22:00:00 3 1.19 35.28%0.14 412 1996/12/09 14:00:00 1996/12/12 04:00:00 63 1.19 35.36%0.14 413 1998/12/01 15:00:00 1998/12/01 19:00:00 5 1.19 35.45%0.14 414 2005/12/31 15:00:00 2006/01/03 03:00:00 61 1.19 35.54%0.14 415 2007/02/28 04:00:00 2007/03/01 01:00:00 22 1.19 35.62%0.14 9/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 416 1995/02/13 12:00:00 1995/02/14 21:00:00 34 1.18 35.71%0.14 417 1999/03/25 13:00:00 1999/03/25 20:00:00 8 1.18 35.79%0.14 418 2000/02/10 15:00:00 2000/02/14 20:00:00 102 1.18 35.88%0.14 419 2007/02/11 10:00:00 2007/02/12 02:00:00 17 1.18 35.97%0.14 420 1955/03/10 19:00:00 1955/03/11 05:00:00 11 1.17 36.05%0.14 421 1963/03/28 09:00:00 1963/03/28 16:00:00 8 1.17 36.14%0.14 422 1975/03/10 10:00:00 1975/03/11 16:00:00 31 1.17 36.22%0.14 423 2004/03/01 21:00:00 2004/03/02 05:00:00 9 1.17 36.31%0.14 424 1967/04/21 20:00:00 1967/04/22 11:00:00 16 1.16 36.39%0.14 425 1995/06/15 19:00:00 1995/06/17 01:00:00 31 1.16 36.48%0.14 426 2006/05/22 03:00:00 2006/05/22 08:00:00 6 1.16 36.57%0.14 427 1952/03/12 21:00:00 1952/03/13 11:00:00 15 1.14 36.65%0.14 428 1967/11/26 18:00:00 1967/11/26 19:00:00 2 1.14 36.74%0.14 429 1971/10/16 01:00:00 1971/10/17 09:00:00 33 1.14 36.82%0.14 430 1974/05/19 08:00:00 1974/05/19 09:00:00 2 1.14 36.91%0.14 431 1962/02/15 18:00:00 1962/02/17 04:00:00 35 1.12 37.00%0.14 432 1964/12/27 06:00:00 1964/12/28 16:00:00 35 1.12 37.08%0.13 433 1955/01/16 07:00:00 1955/01/16 17:00:00 11 1.11 37.17%0.13 434 1955/11/14 04:00:00 1955/11/14 09:00:00 6 1.11 37.25%0.13 435 1975/11/27 13:00:00 1975/11/28 23:00:00 35 1.11 37.34%0.13 436 1953/04/20 09:00:00 1953/04/20 12:00:00 4 1.08 37.42%0.13 437 1957/06/10 01:00:00 1957/06/10 06:00:00 6 1.08 37.51%0.13 438 1958/05/11 08:00:00 1958/05/11 16:00:00 9 1.08 37.60%0.13 439 1952/12/28 06:00:00 1952/12/28 18:00:00 13 1.04 37.68%0.13 440 1960/11/26 16:00:00 1960/11/26 21:00:00 6 1.04 37.77%0.13 441 1967/01/24 11:00:00 1967/01/25 00:00:00 14 1.04 37.85%0.13 442 1968/02/13 01:00:00 1968/02/13 11:00:00 11 1.04 37.94%0.13 443 1968/11/14 16:00:00 1968/11/15 08:00:00 17 1.03 38.03%0.13 444 1970/02/10 01:00:00 1970/02/11 04:00:00 28 1.03 38.11%0.13 445 1971/12/27 11:00:00 1971/12/28 15:00:00 29 1.03 38.20%0.13 446 1974/03/02 08:00:00 1974/03/03 15:00:00 32 1.02 38.28%0.13 447 1953/04/27 17:00:00 1953/04/28 01:00:00 9 1.01 38.37%0.13 448 1957/04/18 01:00:00 1957/04/18 10:00:00 10 1.01 38.45%0.13 449 1963/04/17 03:00:00 1963/04/17 12:00:00 10 1.01 38.54%0.13 450 1963/09/04 02:00:00 1963/09/04 14:00:00 13 1.01 38.63%0.13 451 1998/04/11 02:00:00 1998/04/12 02:00:00 25 1.01 38.71%0.13 452 1960/03/13 04:00:00 1960/03/13 05:00:00 2 0.99 38.80%0.13 453 1965/12/14 15:00:00 1965/12/16 09:00:00 43 0.97 38.88%0.13 454 1975/12/20 13:00:00 1975/12/20 20:00:00 8 0.97 38.97%0.13 455 1961/11/25 00:00:00 1961/11/26 01:00:00 26 0.96 39.06%0.13 456 1969/01/28 00:00:00 1969/01/29 02:00:00 27 0.96 39.14%0.13 457 1971/01/12 18:00:00 1971/01/13 08:00:00 15 0.96 39.23%0.13 458 1956/02/23 04:00:00 1956/02/24 13:00:00 34 0.95 39.31%0.13 459 1974/10/28 04:00:00 1974/10/29 11:00:00 32 0.95 39.40%0.13 460 1971/03/13 02:00:00 1971/03/13 08:00:00 7 0.94 39.48%0.13 461 2001/03/06 02:00:00 2001/03/07 22:00:00 45 0.94 39.57%0.13 462 1976/04/04 02:00:00 1976/04/05 02:00:00 25 0.93 39.66%0.13 10/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 463 1951/10/03 01:00:00 1951/10/09 09:00:00 153 0.91 39.74%0.13 464 1957/01/20 17:00:00 1957/01/21 06:00:00 14 0.91 39.83%0.13 465 1962/03/06 06:00:00 1962/03/06 21:00:00 16 0.91 39.91%0.13 466 1976/03/03 00:00:00 1976/03/03 03:00:00 4 0.91 40.00%0.12 467 1992/12/29 12:00:00 1992/12/29 19:00:00 8 0.91 40.09%0.12 468 1993/01/10 11:00:00 1993/01/10 14:00:00 4 0.91 40.17%0.12 469 1995/05/01 12:00:00 1995/05/01 13:00:00 2 0.91 40.26%0.12 470 1995/12/23 09:00:00 1995/12/23 11:00:00 3 0.91 40.34%0.12 471 1996/10/01 10:00:00 1996/10/01 11:00:00 2 0.91 40.43%0.12 472 1998/11/28 06:00:00 1998/11/29 01:00:00 20 0.91 40.52%0.12 473 1999/01/31 10:00:00 1999/02/01 09:00:00 24 0.91 40.60%0.12 474 1999/06/02 01:00:00 1999/06/02 09:00:00 9 0.91 40.69%0.12 475 1999/06/03 23:00:00 1999/06/04 01:00:00 3 0.91 40.77%0.12 476 2004/04/17 13:00:00 2004/04/17 14:00:00 2 0.91 40.86%0.12 477 1972/12/04 11:00:00 1972/12/04 20:00:00 10 0.9 40.94%0.12 478 1998/12/06 04:00:00 1998/12/06 07:00:00 4 0.9 41.03%0.12 479 1952/01/25 02:00:00 1952/01/25 13:00:00 12 0.89 41.12%0.12 480 1970/01/16 03:00:00 1970/01/16 23:00:00 21 0.89 41.20%0.12 481 1971/12/22 04:00:00 1971/12/22 23:00:00 20 0.89 41.29%0.12 482 1995/01/21 02:00:00 1995/01/21 05:00:00 4 0.89 41.37%0.12 483 1996/12/27 14:00:00 1996/12/28 06:00:00 17 0.89 41.46%0.12 484 1997/01/22 01:00:00 1997/01/23 22:00:00 46 0.89 41.55%0.12 485 1999/02/04 07:00:00 1999/02/05 07:00:00 25 0.89 41.63%0.12 486 2004/12/04 11:00:00 2004/12/05 18:00:00 32 0.89 41.72%0.12 487 2007/12/07 03:00:00 2007/12/09 02:00:00 48 0.89 41.80%0.12 488 2007/12/18 21:00:00 2007/12/19 15:00:00 19 0.89 41.89%0.12 489 1960/11/03 12:00:00 1960/11/03 21:00:00 10 0.88 41.97%0.12 490 1964/11/09 11:00:00 1964/11/10 19:00:00 33 0.88 42.06%0.12 491 1993/02/23 16:00:00 1993/02/24 08:00:00 17 0.88 42.15%0.12 492 1993/12/11 15:00:00 1993/12/12 01:00:00 11 0.88 42.23%0.12 493 1994/11/10 10:00:00 1994/11/10 14:00:00 5 0.88 42.32%0.12 494 1996/01/16 18:00:00 1996/01/16 23:00:00 6 0.88 42.40%0.12 495 2007/02/22 20:00:00 2007/02/22 22:00:00 3 0.88 42.49%0.12 496 2008/02/24 06:00:00 2008/02/24 13:00:00 8 0.88 42.58%0.12 497 1995/03/21 10:00:00 1995/03/21 16:00:00 7 0.87 42.66%0.12 498 1996/03/12 16:00:00 1996/03/13 23:00:00 32 0.87 42.75%0.12 499 2001/03/10 02:00:00 2001/03/11 02:00:00 25 0.87 42.83%0.12 500 2005/03/22 19:00:00 2005/03/22 23:00:00 5 0.87 42.92%0.12 501 1999/04/11 18:00:00 1999/04/12 04:00:00 11 0.86 43.00%0.12 502 1951/10/10 23:00:00 1951/10/12 05:00:00 31 0.83 43.09%0.12 503 1952/04/07 22:00:00 1952/04/08 07:00:00 10 0.83 43.18%0.12 504 1958/11/11 05:00:00 1958/11/11 06:00:00 2 0.83 43.26%0.12 505 1954/01/24 03:00:00 1954/01/25 12:00:00 34 0.82 43.35%0.12 506 1955/01/01 18:00:00 1955/01/02 06:00:00 13 0.81 43.43%0.12 507 1969/01/13 14:00:00 1969/01/14 16:00:00 27 0.81 43.52%0.11 508 1969/12/08 22:00:00 1969/12/09 02:00:00 5 0.81 43.61%0.11 509 1973/01/09 10:00:00 1973/01/10 01:00:00 16 0.81 43.69%0.11 11/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 510 1974/12/28 06:00:00 1974/12/29 10:00:00 29 0.81 43.78%0.11 511 1997/12/18 04:00:00 1997/12/19 00:00:00 21 0.81 43.86%0.11 512 1959/02/08 01:00:00 1959/02/09 04:00:00 28 0.8 43.95%0.11 513 1960/02/08 17:00:00 1960/02/10 08:00:00 40 0.8 44.03%0.11 514 1963/02/14 08:00:00 1963/02/14 12:00:00 5 0.8 44.12%0.11 515 1975/02/03 06:00:00 1975/02/05 01:00:00 44 0.8 44.21%0.11 516 1965/03/06 21:00:00 1965/03/07 01:00:00 5 0.79 44.29%0.11 517 1998/03/13 04:00:00 1998/03/14 23:00:00 44 0.79 44.38%0.11 518 1951/10/14 09:00:00 1951/10/15 10:00:00 26 0.76 44.46%0.11 519 1955/01/30 22:00:00 1955/01/31 08:00:00 11 0.76 44.55%0.11 520 1965/12/12 18:00:00 1965/12/13 11:00:00 18 0.76 44.64%0.11 521 1966/01/19 23:00:00 1966/01/20 00:00:00 2 0.76 44.72%0.11 522 1967/03/29 06:00:00 1967/03/29 07:00:00 2 0.76 44.81%0.11 523 1967/03/31 10:00:00 1967/03/31 13:00:00 4 0.76 44.89%0.11 524 1969/03/13 01:00:00 1969/03/13 06:00:00 6 0.76 44.98%0.11 525 1970/04/27 10:00:00 1970/04/27 11:00:00 2 0.76 45.06%0.11 526 1971/12/02 21:00:00 1971/12/04 03:00:00 31 0.76 45.15%0.11 527 1972/01/09 08:00:00 1972/01/09 09:00:00 2 0.76 45.24%0.11 528 1973/11/17 03:00:00 1973/11/18 22:00:00 44 0.76 45.32%0.11 529 1973/12/01 18:00:00 1973/12/01 19:00:00 2 0.76 45.41%0.11 530 1974/01/01 04:00:00 1974/01/01 07:00:00 4 0.76 45.49%0.11 531 1975/02/09 05:00:00 1975/02/10 08:00:00 28 0.76 45.58%0.11 532 1975/03/22 08:00:00 1975/03/22 13:00:00 6 0.76 45.67%0.11 533 1976/05/07 00:00:00 1976/05/07 01:00:00 2 0.76 45.75%0.11 534 1976/06/01 08:00:00 1976/06/01 09:00:00 2 0.76 45.84%0.11 535 1976/06/10 09:00:00 1976/06/10 10:00:00 2 0.76 45.92%0.11 536 1976/06/30 16:00:00 1976/06/30 17:00:00 2 0.76 46.01%0.11 537 1976/07/26 23:00:00 1976/07/27 01:00:00 3 0.76 46.09%0.11 538 1976/11/12 00:00:00 1976/11/12 06:00:00 7 0.76 46.18%0.11 539 1976/11/27 10:00:00 1976/11/27 11:00:00 2 0.76 46.27%0.11 540 1977/01/26 00:00:00 1977/01/26 01:00:00 2 0.76 46.35%0.11 541 1977/01/29 01:00:00 1977/01/29 03:00:00 3 0.76 46.44%0.11 542 1977/02/22 01:00:00 1977/02/22 05:00:00 5 0.76 46.52%0.11 543 1977/02/24 14:00:00 1977/02/24 23:00:00 10 0.76 46.61%0.11 544 1977/03/16 12:00:00 1977/03/21 11:00:00 120 0.76 46.70%0.11 545 1977/03/22 12:00:00 1977/03/22 13:00:00 2 0.76 46.78%0.11 546 1977/05/12 09:00:00 1977/05/12 10:00:00 2 0.76 46.87%0.11 547 1977/07/14 08:00:00 1977/07/14 09:00:00 2 0.76 46.95%0.11 548 1977/07/15 14:00:00 1977/07/15 15:00:00 2 0.76 47.04%0.11 549 1977/07/20 09:00:00 1977/07/20 10:00:00 2 0.76 47.12%0.11 550 1977/07/22 11:00:00 1977/07/22 12:00:00 2 0.76 47.21%0.11 551 1977/07/27 12:00:00 1977/07/27 13:00:00 2 0.76 47.30%0.11 552 1977/09/05 06:00:00 1977/09/05 07:00:00 2 0.76 47.38%0.11 553 1977/09/09 21:00:00 1977/09/09 22:00:00 2 0.76 47.47%0.11 554 1977/10/05 18:00:00 1977/10/05 19:00:00 2 0.76 47.55%0.11 555 1977/12/23 03:00:00 1977/12/23 04:00:00 2 0.76 47.64%0.11 556 1977/12/25 16:00:00 1977/12/26 22:00:00 31 0.76 47.73%0.1 12/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 557 1978/01/30 10:00:00 1978/01/30 23:00:00 14 0.76 47.81%0.1 558 1978/03/22 14:00:00 1978/03/23 14:00:00 25 0.76 47.90%0.1 559 1978/04/02 18:00:00 1978/04/02 19:00:00 2 0.76 47.98%0.1 560 1978/04/07 01:00:00 1978/04/07 02:00:00 2 0.76 48.07%0.1 561 1978/04/08 11:00:00 1978/04/08 17:00:00 7 0.76 48.15%0.1 562 1978/04/15 19:00:00 1978/04/15 21:00:00 3 0.76 48.24%0.1 563 1978/04/25 16:00:00 1978/04/25 17:00:00 2 0.76 48.33%0.1 564 1978/09/16 11:00:00 1978/09/16 12:00:00 2 0.76 48.41%0.1 565 1978/11/10 15:00:00 1978/11/12 10:00:00 44 0.76 48.50%0.1 566 1978/11/13 20:00:00 1978/11/13 21:00:00 2 0.76 48.58%0.1 567 1978/11/15 09:00:00 1978/11/15 10:00:00 2 0.76 48.67%0.1 568 1978/11/24 08:00:00 1978/11/24 13:00:00 6 0.76 48.76%0.1 569 1978/12/01 18:00:00 1978/12/01 19:00:00 2 0.76 48.84%0.1 570 1979/01/09 10:00:00 1979/01/09 14:00:00 5 0.76 48.93%0.1 571 1979/01/17 10:00:00 1979/01/19 04:00:00 43 0.76 49.01%0.1 572 1979/01/25 14:00:00 1979/01/25 15:00:00 2 0.76 49.10%0.1 573 1979/02/23 01:00:00 1979/02/23 05:00:00 5 0.76 49.18%0.1 574 1979/05/07 10:00:00 1979/05/07 11:00:00 2 0.76 49.27%0.1 575 1979/08/19 14:00:00 1979/08/19 15:00:00 2 0.76 49.36%0.1 576 1979/10/04 22:00:00 1979/10/04 23:00:00 2 0.76 49.44%0.1 577 1979/10/20 01:00:00 1979/10/20 16:00:00 16 0.76 49.53%0.1 578 1979/11/04 22:00:00 1979/11/04 23:00:00 2 0.76 49.61%0.1 579 1979/11/12 11:00:00 1979/11/12 12:00:00 2 0.76 49.70%0.1 580 1979/12/21 05:00:00 1979/12/21 12:00:00 8 0.76 49.79%0.1 581 1979/12/25 09:00:00 1979/12/25 10:00:00 2 0.76 49.87%0.1 582 1980/01/07 07:00:00 1980/01/07 08:00:00 2 0.76 49.96%0.1 583 1980/01/14 00:00:00 1980/01/14 01:00:00 2 0.76 50.04%0.1 584 1980/03/18 16:00:00 1980/03/18 17:00:00 2 0.76 50.13%0.1 585 1980/03/21 09:00:00 1980/03/21 23:00:00 15 0.76 50.21%0.1 586 1980/04/01 15:00:00 1980/04/01 16:00:00 2 0.76 50.30%0.1 587 1980/04/21 02:00:00 1980/04/21 03:00:00 2 0.76 50.39%0.1 588 1980/04/28 15:00:00 1980/04/29 09:00:00 19 0.76 50.47%0.1 589 1980/05/02 10:00:00 1980/05/02 11:00:00 2 0.76 50.56%0.1 590 1980/05/08 10:00:00 1980/05/08 11:00:00 2 0.76 50.64%0.1 591 1980/05/09 12:00:00 1980/05/10 13:00:00 26 0.76 50.73%0.1 592 1980/12/04 10:00:00 1980/12/05 09:00:00 24 0.76 50.82%0.1 593 1981/01/11 06:00:00 1981/01/11 07:00:00 2 0.76 50.90%0.1 594 1981/01/12 10:00:00 1981/01/12 11:00:00 2 0.76 50.99%0.1 595 1981/03/10 17:00:00 1981/03/10 18:00:00 2 0.76 51.07%0.1 596 1981/03/14 12:00:00 1981/03/14 13:00:00 2 0.76 51.16%0.1 597 1981/03/18 16:00:00 1981/03/18 17:00:00 2 0.76 51.24%0.1 598 1981/04/02 04:00:00 1981/04/02 10:00:00 7 0.76 51.33%0.1 599 1981/04/18 20:00:00 1981/04/19 06:00:00 11 0.76 51.42%0.1 600 1981/04/26 17:00:00 1981/04/26 18:00:00 2 0.76 51.50%0.1 601 1981/05/01 11:00:00 1981/05/01 12:00:00 2 0.76 51.59%0.1 602 1981/10/11 06:00:00 1981/10/11 07:00:00 2 0.76 51.67%0.1 603 1981/11/16 12:00:00 1981/11/16 13:00:00 2 0.76 51.76%0.1 13/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 604 1981/12/21 01:00:00 1981/12/21 02:00:00 2 0.76 51.85%0.1 605 1982/02/08 12:00:00 1982/02/08 13:00:00 2 0.76 51.93%0.1 606 1982/02/17 01:00:00 1982/02/17 02:00:00 2 0.76 52.02%0.1 607 1982/03/25 20:00:00 1982/03/26 05:00:00 10 0.76 52.10%0.1 608 1982/03/28 19:00:00 1982/03/29 02:00:00 8 0.76 52.19%0.1 609 1982/04/04 11:00:00 1982/04/04 12:00:00 2 0.76 52.27%0.1 610 1982/04/11 19:00:00 1982/04/11 20:00:00 2 0.76 52.36%0.1 611 1982/05/06 13:00:00 1982/05/06 14:00:00 2 0.76 52.45%0.1 612 1982/06/17 12:00:00 1982/06/17 13:00:00 2 0.76 52.53%0.1 613 1982/09/15 06:00:00 1982/09/15 07:00:00 2 0.76 52.62%0.1 614 1982/09/16 10:00:00 1982/09/17 13:00:00 28 0.76 52.70%0.09 615 1982/10/26 06:00:00 1982/10/26 07:00:00 2 0.76 52.79%0.09 616 1982/11/18 23:00:00 1982/11/19 08:00:00 10 0.76 52.88%0.09 617 1982/11/20 09:00:00 1982/11/20 10:00:00 2 0.76 52.96%0.09 618 1982/11/29 10:00:00 1982/11/30 14:00:00 29 0.76 53.05%0.09 619 1982/12/29 18:00:00 1982/12/29 21:00:00 4 0.76 53.13%0.09 620 1983/01/05 08:00:00 1983/01/05 09:00:00 2 0.76 53.22%0.09 621 1983/01/17 05:00:00 1983/01/17 06:00:00 2 0.76 53.30%0.09 622 1983/01/18 10:00:00 1983/01/19 10:00:00 25 0.76 53.39%0.09 623 1983/01/22 14:00:00 1983/01/23 13:00:00 24 0.76 53.48%0.09 624 1983/01/24 18:00:00 1983/01/25 17:00:00 24 0.76 53.56%0.09 625 1983/02/02 14:00:00 1983/02/03 17:00:00 28 0.76 53.65%0.09 626 1983/02/23 23:00:00 1983/02/24 23:00:00 25 0.76 53.73%0.09 627 1983/03/28 07:00:00 1983/03/28 08:00:00 2 0.76 53.82%0.09 628 1983/04/12 06:00:00 1983/04/13 09:00:00 28 0.76 53.91%0.09 629 1983/05/01 08:00:00 1983/05/02 08:00:00 25 0.76 53.99%0.09 630 1983/05/06 08:00:00 1983/05/06 09:00:00 2 0.76 54.08%0.09 631 1983/08/06 04:00:00 1983/08/06 05:00:00 2 0.76 54.16%0.09 632 1983/08/18 07:00:00 1983/08/18 11:00:00 5 0.76 54.25%0.09 633 1983/10/07 08:00:00 1983/10/08 03:00:00 20 0.76 54.33%0.09 634 1983/11/17 23:00:00 1983/11/18 00:00:00 2 0.76 54.42%0.09 635 1983/11/20 07:00:00 1983/11/20 20:00:00 14 0.76 54.51%0.09 636 1983/12/15 13:00:00 1983/12/15 14:00:00 2 0.76 54.59%0.09 637 1983/12/19 14:00:00 1983/12/19 15:00:00 2 0.76 54.68%0.09 638 1984/01/04 15:00:00 1984/01/04 16:00:00 2 0.76 54.76%0.09 639 1984/01/15 16:00:00 1984/01/16 08:00:00 17 0.76 54.85%0.09 640 1984/02/10 04:00:00 1984/02/10 05:00:00 2 0.76 54.94%0.09 641 1984/07/15 14:00:00 1984/07/15 15:00:00 2 0.76 55.02%0.09 642 1984/11/08 06:00:00 1984/11/08 07:00:00 2 0.76 55.11%0.09 643 1984/11/16 14:00:00 1984/11/16 15:00:00 2 0.76 55.19%0.09 644 1984/11/23 05:00:00 1984/11/23 06:00:00 2 0.76 55.28%0.09 645 1984/12/03 07:00:00 1984/12/03 10:00:00 4 0.76 55.36%0.09 646 1984/12/10 19:00:00 1984/12/11 06:00:00 12 0.76 55.45%0.09 647 1984/12/12 20:00:00 1984/12/12 21:00:00 2 0.76 55.54%0.09 648 1985/01/07 10:00:00 1985/01/08 03:00:00 18 0.76 55.62%0.09 649 1985/01/28 14:00:00 1985/01/29 02:00:00 13 0.76 55.71%0.09 650 1985/02/02 02:00:00 1985/02/02 12:00:00 11 0.76 55.79%0.09 14/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 651 1985/02/03 21:00:00 1985/02/03 22:00:00 2 0.76 55.88%0.09 652 1985/02/20 19:00:00 1985/02/20 20:00:00 2 0.76 55.97%0.09 653 1985/03/27 06:00:00 1985/03/28 12:00:00 31 0.76 56.05%0.09 654 1985/04/21 17:00:00 1985/04/21 18:00:00 2 0.76 56.14%0.09 655 1985/09/18 11:00:00 1985/09/18 13:00:00 3 0.76 56.22%0.09 656 1985/10/06 06:00:00 1985/10/06 07:00:00 2 0.76 56.31%0.09 657 1985/10/07 09:00:00 1985/10/07 10:00:00 2 0.76 56.39%0.09 658 1985/12/02 10:00:00 1985/12/03 00:00:00 15 0.76 56.48%0.09 659 1986/02/07 21:00:00 1986/02/08 14:00:00 18 0.76 56.57%0.09 660 1986/02/13 07:00:00 1986/02/13 13:00:00 7 0.76 56.65%0.09 661 1986/02/17 05:00:00 1986/02/17 06:00:00 2 0.76 56.74%0.09 662 1986/02/23 06:00:00 1986/02/23 07:00:00 2 0.76 56.82%0.09 663 1986/03/01 07:00:00 1986/03/01 08:00:00 2 0.76 56.91%0.09 664 1986/03/12 10:00:00 1986/03/12 14:00:00 5 0.76 57.00%0.09 665 1986/03/13 18:00:00 1986/03/14 03:00:00 10 0.76 57.08%0.09 666 1986/04/01 08:00:00 1986/04/01 09:00:00 2 0.76 57.17%0.09 667 1986/04/06 00:00:00 1986/04/06 11:00:00 12 0.76 57.25%0.09 668 1986/10/11 07:00:00 1986/10/11 08:00:00 2 0.76 57.34%0.09 669 1986/11/05 12:00:00 1986/11/05 13:00:00 2 0.76 57.42%0.09 670 1986/12/06 05:00:00 1986/12/07 04:00:00 24 0.76 57.51%0.09 671 1987/01/28 07:00:00 1987/01/28 08:00:00 2 0.76 57.60%0.09 672 1987/02/03 12:00:00 1987/02/03 13:00:00 2 0.76 57.68%0.09 673 1987/02/05 11:00:00 1987/02/05 12:00:00 2 0.76 57.77%0.09 674 1987/03/05 19:00:00 1987/03/06 14:00:00 20 0.76 57.85%0.09 675 1987/03/15 08:00:00 1987/03/15 10:00:00 3 0.76 57.94%0.09 676 1987/03/22 00:00:00 1987/03/22 03:00:00 4 0.76 58.03%0.09 677 1987/03/24 21:00:00 1987/03/25 21:00:00 25 0.76 58.11%0.09 678 1987/07/17 08:00:00 1987/07/17 12:00:00 5 0.76 58.20%0.09 679 1987/08/14 09:00:00 1987/08/14 10:00:00 2 0.76 58.28%0.09 680 1987/10/23 06:00:00 1987/10/23 07:00:00 2 0.76 58.37%0.09 681 1987/10/28 00:00:00 1987/10/28 01:00:00 2 0.76 58.45%0.09 682 1987/10/31 05:00:00 1987/11/01 00:00:00 20 0.76 58.54%0.09 683 1987/11/02 04:00:00 1987/11/02 05:00:00 2 0.76 58.63%0.09 684 1987/11/04 18:00:00 1987/11/05 11:00:00 18 0.76 58.71%0.09 685 1987/11/14 01:00:00 1987/11/14 02:00:00 2 0.76 58.80%0.09 686 1987/11/17 21:00:00 1987/11/17 22:00:00 2 0.76 58.88%0.09 687 1987/12/11 05:00:00 1987/12/11 06:00:00 2 0.76 58.97%0.08 688 1987/12/19 18:00:00 1987/12/19 19:00:00 2 0.76 59.06%0.08 689 1987/12/29 11:00:00 1987/12/30 05:00:00 19 0.76 59.14%0.08 690 1988/01/05 13:00:00 1988/01/05 18:00:00 6 0.76 59.23%0.08 691 1988/02/02 00:00:00 1988/02/02 17:00:00 18 0.76 59.31%0.08 692 1988/02/29 21:00:00 1988/02/29 22:00:00 2 0.76 59.40%0.08 693 1988/04/18 04:00:00 1988/04/18 05:00:00 2 0.76 59.48%0.08 694 1988/04/22 10:00:00 1988/04/23 11:00:00 26 0.76 59.57%0.08 695 1988/05/29 06:00:00 1988/05/29 07:00:00 2 0.76 59.66%0.08 696 1988/11/10 11:00:00 1988/11/11 09:00:00 23 0.76 59.74%0.08 697 1988/11/23 23:00:00 1988/11/24 05:00:00 7 0.76 59.83%0.08 15/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 698 1988/12/18 12:00:00 1988/12/18 20:00:00 9 0.76 59.91%0.08 699 1988/12/22 22:00:00 1988/12/23 00:00:00 3 0.76 60.00%0.08 700 1988/12/27 22:00:00 1988/12/28 11:00:00 14 0.76 60.09%0.08 701 1989/01/05 18:00:00 1989/01/05 19:00:00 2 0.76 60.17%0.08 702 1989/01/07 15:00:00 1989/01/07 17:00:00 3 0.76 60.26%0.08 703 1989/01/23 19:00:00 1989/01/23 21:00:00 3 0.76 60.34%0.08 704 1989/02/02 06:00:00 1989/02/02 09:00:00 4 0.76 60.43%0.08 705 1989/02/03 21:00:00 1989/02/04 17:00:00 21 0.76 60.52%0.08 706 1989/02/09 14:00:00 1989/02/10 05:00:00 16 0.76 60.60%0.08 707 1989/03/02 09:00:00 1989/03/02 19:00:00 11 0.76 60.69%0.08 708 1989/05/14 06:00:00 1989/05/15 07:00:00 26 0.76 60.77%0.08 709 1989/06/04 06:00:00 1989/06/04 07:00:00 2 0.76 60.86%0.08 710 1989/11/26 10:00:00 1989/11/26 11:00:00 2 0.76 60.94%0.08 711 1989/12/01 10:00:00 1989/12/01 11:00:00 2 0.76 61.03%0.08 712 1990/01/02 06:00:00 1990/01/02 10:00:00 5 0.76 61.12%0.08 713 1990/01/13 10:00:00 1990/01/14 11:00:00 26 0.76 61.20%0.08 714 1990/01/18 13:00:00 1990/01/18 14:00:00 2 0.76 61.29%0.08 715 1990/01/22 10:00:00 1990/01/22 11:00:00 2 0.76 61.37%0.08 716 1990/02/04 10:00:00 1990/02/04 14:00:00 5 0.76 61.46%0.08 717 1990/04/16 20:00:00 1990/04/17 14:00:00 19 0.76 61.55%0.08 718 1990/05/13 16:00:00 1990/05/13 17:00:00 2 0.76 61.63%0.08 719 1990/05/28 05:00:00 1990/05/28 14:00:00 10 0.76 61.72%0.08 720 1990/06/09 13:00:00 1990/06/10 14:00:00 26 0.76 61.80%0.08 721 1990/08/15 07:00:00 1990/08/15 08:00:00 2 0.76 61.89%0.08 722 1990/12/20 07:00:00 1990/12/20 08:00:00 2 0.76 61.97%0.08 723 1991/01/03 21:00:00 1991/01/03 22:00:00 2 0.76 62.06%0.08 724 1991/03/11 02:00:00 1991/03/11 03:00:00 2 0.76 62.15%0.08 725 1991/03/13 19:00:00 1991/03/13 20:00:00 2 0.76 62.23%0.08 726 1991/03/15 13:00:00 1991/03/15 15:00:00 3 0.76 62.32%0.08 727 1991/07/31 11:00:00 1991/07/31 12:00:00 2 0.76 62.40%0.08 728 1991/12/09 10:00:00 1991/12/09 11:00:00 2 0.76 62.49%0.08 729 1991/12/18 03:00:00 1991/12/18 04:00:00 2 0.76 62.58%0.08 730 1991/12/19 10:00:00 1991/12/19 11:00:00 2 0.76 62.66%0.08 731 1991/12/28 01:00:00 1991/12/28 04:00:00 4 0.76 62.75%0.08 732 1992/01/03 08:00:00 1992/01/04 04:00:00 21 0.76 62.83%0.08 733 1992/02/10 00:00:00 1992/02/10 06:00:00 7 0.76 62.92%0.08 734 1992/03/29 12:00:00 1992/03/29 13:00:00 2 0.76 63.00%0.08 735 1992/03/31 14:00:00 1992/03/31 15:00:00 2 0.76 63.09%0.08 736 1992/05/05 23:00:00 1992/05/06 00:00:00 2 0.76 63.18%0.08 737 1992/05/17 17:00:00 1992/05/17 18:00:00 2 0.76 63.26%0.08 738 1997/01/02 04:00:00 1997/01/03 11:00:00 32 0.76 63.35%0.08 739 1951/12/19 04:00:00 1951/12/19 13:00:00 10 0.74 63.43%0.08 740 1954/12/03 09:00:00 1954/12/04 00:00:00 16 0.74 63.52%0.08 741 1965/12/31 07:00:00 1966/01/01 02:00:00 20 0.74 63.61%0.08 742 1953/11/14 15:00:00 1953/11/15 09:00:00 19 0.73 63.69%0.08 743 1953/12/04 08:00:00 1953/12/04 11:00:00 4 0.73 63.78%0.08 744 1969/11/10 01:00:00 1969/11/10 09:00:00 9 0.73 63.86%0.08 16/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 745 1973/02/03 14:00:00 1973/02/03 23:00:00 10 0.73 63.95%0.08 746 2001/02/20 05:00:00 2001/02/21 00:00:00 20 0.73 64.03%0.08 747 1957/02/23 04:00:00 1957/02/23 11:00:00 8 0.72 64.12%0.08 748 1957/10/21 00:00:00 1957/10/21 06:00:00 7 0.72 64.21%0.08 749 1958/03/11 00:00:00 1958/03/12 07:00:00 32 0.72 64.29%0.08 750 1964/03/02 07:00:00 1964/03/02 13:00:00 7 0.72 64.38%0.08 751 1965/03/12 11:00:00 1965/03/13 22:00:00 36 0.72 64.46%0.08 752 1957/05/19 03:00:00 1957/05/19 10:00:00 8 0.7 64.55%0.08 753 1957/05/20 23:00:00 1957/05/21 08:00:00 10 0.7 64.64%0.08 754 1962/05/27 06:00:00 1962/05/27 14:00:00 9 0.7 64.72%0.08 755 1956/05/09 08:00:00 1956/05/10 01:00:00 18 0.68 64.81%0.08 756 1960/04/23 07:00:00 1960/04/24 09:00:00 27 0.68 64.89%0.08 757 1972/10/19 00:00:00 1972/10/20 18:00:00 43 0.68 64.98%0.08 758 1973/03/26 06:00:00 1973/03/26 07:00:00 2 0.68 65.06%0.08 759 1956/12/05 14:00:00 1956/12/06 05:00:00 16 0.66 65.15%0.08 760 1957/01/09 20:00:00 1957/01/10 13:00:00 18 0.66 65.24%0.08 761 1963/12/09 15:00:00 1963/12/10 04:00:00 14 0.66 65.32%0.08 762 1968/01/27 22:00:00 1968/01/28 01:00:00 4 0.66 65.41%0.08 763 1969/01/18 19:00:00 1969/01/22 10:00:00 88 0.66 65.49%0.08 764 1970/01/09 18:00:00 1970/01/10 11:00:00 18 0.66 65.58%0.08 765 1975/12/12 14:00:00 1975/12/12 18:00:00 5 0.66 65.67%0.08 766 1998/01/03 06:00:00 1998/01/04 20:00:00 39 0.66 65.75%0.08 767 1964/02/29 03:00:00 1964/02/29 06:00:00 4 0.65 65.84%0.08 768 2001/02/23 06:00:00 2001/02/23 23:00:00 18 0.65 65.92%0.08 769 2001/11/29 07:00:00 2001/11/29 23:00:00 17 0.65 66.01%0.08 770 2002/02/17 08:00:00 2002/02/17 22:00:00 15 0.65 66.09%0.08 771 1962/03/22 22:00:00 1962/03/23 01:00:00 4 0.64 66.18%0.08 772 1963/10/16 08:00:00 1963/10/16 13:00:00 6 0.64 66.27%0.08 773 1969/03/09 01:00:00 1969/03/11 05:00:00 53 0.64 66.35%0.08 774 1957/04/22 10:00:00 1957/04/22 14:00:00 5 0.63 66.44%0.08 775 1962/05/14 17:00:00 1962/05/15 04:00:00 12 0.63 66.52%0.08 776 1970/04/16 21:00:00 1970/04/17 02:00:00 6 0.63 66.61%0.08 777 2003/05/03 07:00:00 2003/05/03 23:00:00 17 0.62 66.70%0.08 778 1951/11/20 01:00:00 1951/11/20 22:00:00 22 0.61 66.78%0.08 779 1965/09/16 13:00:00 1965/09/17 13:00:00 25 0.61 66.87%0.07 780 1993/02/26 18:00:00 1993/02/26 22:00:00 5 0.61 66.95%0.07 781 1994/04/24 04:00:00 1994/04/24 07:00:00 4 0.61 67.04%0.07 782 1994/12/24 09:00:00 1994/12/25 05:00:00 21 0.61 67.12%0.07 783 1996/02/03 11:00:00 1996/02/03 13:00:00 3 0.61 67.21%0.07 784 1996/10/02 19:00:00 1996/10/03 16:00:00 22 0.61 67.30%0.07 785 1997/04/03 17:00:00 1997/04/03 19:00:00 3 0.61 67.38%0.07 786 1998/08/31 20:00:00 1998/08/31 21:00:00 2 0.61 67.47%0.07 787 1998/12/19 18:00:00 1998/12/19 20:00:00 3 0.61 67.55%0.07 788 1999/03/15 10:00:00 1999/03/15 11:00:00 2 0.61 67.64%0.07 789 1999/04/06 18:00:00 1999/04/07 11:00:00 18 0.61 67.73%0.07 790 1999/07/18 10:00:00 1999/07/18 11:00:00 2 0.61 67.81%0.07 791 2000/11/10 06:00:00 2000/11/11 22:00:00 41 0.61 67.90%0.07 17/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 792 2003/11/12 05:00:00 2003/11/13 05:00:00 25 0.61 67.98%0.07 793 2004/02/18 16:00:00 2004/02/18 18:00:00 3 0.61 68.07%0.07 794 2004/03/26 08:00:00 2004/03/26 12:00:00 5 0.61 68.15%0.07 795 2004/08/30 20:00:00 2004/08/30 21:00:00 2 0.61 68.24%0.07 796 2005/01/28 15:00:00 2005/01/28 16:00:00 2 0.61 68.33%0.07 797 2005/03/04 09:00:00 2005/03/05 04:00:00 20 0.61 68.41%0.07 798 2006/03/03 14:00:00 2006/03/03 16:00:00 3 0.61 68.50%0.07 799 2006/11/27 10:00:00 2006/11/27 12:00:00 3 0.61 68.58%0.07 800 2006/12/16 20:00:00 2006/12/17 04:00:00 9 0.61 68.67%0.07 801 2006/12/22 10:00:00 2006/12/22 11:00:00 2 0.61 68.76%0.07 802 2007/02/13 07:00:00 2007/02/13 22:00:00 16 0.61 68.84%0.07 803 2007/09/22 10:00:00 2007/09/22 14:00:00 5 0.61 68.93%0.07 804 2008/01/22 04:00:00 2008/01/22 06:00:00 3 0.61 69.01%0.07 805 2008/01/29 01:00:00 2008/01/29 02:00:00 2 0.61 69.10%0.07 806 2008/02/03 06:00:00 2008/02/04 05:00:00 24 0.61 69.18%0.07 807 2008/01/23 08:00:00 2008/01/24 20:00:00 37 0.6 69.27%0.07 808 1996/12/05 21:00:00 1996/12/06 08:00:00 12 0.59 69.36%0.07 809 1951/12/04 23:00:00 1951/12/05 07:00:00 9 0.58 69.44%0.07 810 1952/12/06 03:00:00 1952/12/06 06:00:00 4 0.58 69.53%0.07 811 1953/11/05 07:00:00 1953/11/06 05:00:00 23 0.58 69.61%0.07 812 1957/11/14 15:00:00 1957/11/14 19:00:00 5 0.58 69.70%0.07 813 1967/12/07 22:00:00 1967/12/08 09:00:00 12 0.58 69.79%0.07 814 1987/02/13 18:00:00 1987/02/14 00:00:00 7 0.58 69.87%0.07 815 1993/01/02 06:00:00 1993/01/02 13:00:00 8 0.58 69.96%0.07 816 1996/01/25 12:00:00 1996/01/25 15:00:00 4 0.58 70.04%0.07 817 1999/01/20 05:00:00 1999/01/21 06:00:00 26 0.58 70.13%0.07 818 2001/01/08 13:00:00 2001/01/08 18:00:00 6 0.58 70.21%0.07 819 2001/11/12 09:00:00 2001/11/13 19:00:00 35 0.58 70.30%0.07 820 2001/12/03 14:00:00 2001/12/04 21:00:00 32 0.58 70.39%0.07 821 2005/12/02 23:00:00 2005/12/03 01:00:00 3 0.58 70.47%0.07 822 2007/02/19 00:00:00 2007/02/19 09:00:00 10 0.58 70.56%0.07 823 2008/02/14 10:00:00 2008/02/14 15:00:00 6 0.58 70.64%0.07 824 1952/03/10 04:00:00 1952/03/11 10:00:00 31 0.57 70.73%0.07 825 1959/09/30 22:00:00 1959/10/01 07:00:00 10 0.57 70.82%0.07 826 1995/03/23 08:00:00 1995/03/23 18:00:00 11 0.57 70.90%0.07 827 1996/02/12 12:00:00 1996/02/12 14:00:00 3 0.57 70.99%0.07 828 1997/02/10 19:00:00 1997/02/10 23:00:00 5 0.57 71.07%0.07 829 2000/09/22 18:00:00 2000/09/23 01:00:00 8 0.57 71.16%0.07 830 2007/10/13 05:00:00 2007/10/13 10:00:00 6 0.57 71.24%0.07 831 1957/10/11 05:00:00 1957/10/11 13:00:00 9 0.56 71.33%0.07 832 1960/03/23 06:00:00 1960/03/23 10:00:00 5 0.56 71.42%0.07 833 1961/10/08 15:00:00 1961/10/08 17:00:00 3 0.56 71.50%0.07 834 1964/03/12 16:00:00 1964/03/13 02:00:00 11 0.56 71.59%0.07 835 1969/04/03 01:00:00 1969/04/03 09:00:00 9 0.56 71.67%0.07 836 1976/04/12 03:00:00 1976/04/13 13:00:00 35 0.56 71.76%0.07 837 1996/03/04 16:00:00 1996/03/05 00:00:00 9 0.56 71.85%0.07 838 1996/04/18 00:00:00 1996/04/18 05:00:00 6 0.56 71.93%0.07 18/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 839 1999/04/01 13:00:00 1999/04/01 20:00:00 8 0.56 72.02%0.07 840 1963/06/11 08:00:00 1963/06/11 14:00:00 7 0.55 72.10%0.07 841 2001/04/09 16:00:00 2001/04/10 22:00:00 31 0.55 72.19%0.07 842 2006/04/14 12:00:00 2006/04/15 10:00:00 23 0.55 72.27%0.07 843 2007/04/22 22:00:00 2007/04/23 01:00:00 4 0.55 72.36%0.07 844 1952/09/19 14:00:00 1952/09/19 16:00:00 3 0.53 72.45%0.07 845 1966/02/25 00:00:00 1966/02/25 05:00:00 6 0.53 72.53%0.07 846 1971/04/26 04:00:00 1971/04/26 06:00:00 3 0.53 72.62%0.07 847 1975/03/14 01:00:00 1975/03/14 04:00:00 4 0.53 72.70%0.07 848 2002/03/17 20:00:00 2002/03/18 03:00:00 8 0.53 72.79%0.07 849 2002/05/20 22:00:00 2002/05/20 23:00:00 2 0.53 72.88%0.07 850 1953/01/06 14:00:00 1953/01/08 10:00:00 45 0.51 72.96%0.07 851 1960/12/02 07:00:00 1960/12/03 05:00:00 23 0.51 73.05%0.07 852 1955/11/17 05:00:00 1955/11/17 18:00:00 14 0.5 73.13%0.07 853 1958/02/13 00:00:00 1958/02/13 07:00:00 8 0.5 73.22%0.07 854 1962/02/24 19:00:00 1962/02/25 00:00:00 6 0.5 73.30%0.07 855 1965/11/25 07:00:00 1965/11/25 13:00:00 7 0.5 73.39%0.07 856 1955/04/26 09:00:00 1955/04/26 12:00:00 4 0.48 73.48%0.07 857 1963/03/15 03:00:00 1963/03/15 07:00:00 5 0.48 73.56%0.07 858 1963/04/08 04:00:00 1963/04/08 09:00:00 6 0.48 73.65%0.07 859 1969/05/05 08:00:00 1969/05/06 12:00:00 29 0.48 73.73%0.07 860 2002/04/15 07:00:00 2002/04/15 10:00:00 4 0.48 73.82%0.07 861 2002/04/24 11:00:00 2002/04/24 14:00:00 4 0.48 73.91%0.07 862 2002/09/29 11:00:00 2002/09/29 21:00:00 11 0.48 73.99%0.07 863 1965/07/29 19:00:00 1965/07/29 23:00:00 5 0.47 74.08%0.07 864 1998/05/05 13:00:00 1998/05/06 21:00:00 33 0.47 74.16%0.07 865 1951/12/01 21:00:00 1951/12/02 03:00:00 7 0.43 74.25%0.07 866 1964/01/18 14:00:00 1964/01/18 21:00:00 8 0.43 74.33%0.07 867 1966/01/27 04:00:00 1966/01/27 15:00:00 12 0.43 74.42%0.07 868 1971/12/07 00:00:00 1971/12/07 03:00:00 4 0.43 74.51%0.07 869 1972/12/07 05:00:00 1972/12/08 21:00:00 41 0.43 74.59%0.07 870 1975/01/30 13:00:00 1975/01/30 18:00:00 6 0.43 74.68%0.07 871 2000/01/25 11:00:00 2000/01/26 18:00:00 32 0.43 74.76%0.07 872 1952/12/17 06:00:00 1952/12/17 16:00:00 11 0.42 74.85%0.07 873 1953/11/20 06:00:00 1953/11/20 08:00:00 3 0.42 74.94%0.07 874 1956/04/26 16:00:00 1956/04/27 09:00:00 18 0.42 75.02%0.07 875 1961/03/15 09:00:00 1961/03/15 14:00:00 6 0.42 75.11%0.07 876 1963/10/18 01:00:00 1963/10/19 01:00:00 25 0.42 75.19%0.07 877 1963/11/06 13:00:00 1963/11/06 17:00:00 5 0.42 75.28%0.07 878 1965/04/12 23:00:00 1965/04/13 01:00:00 3 0.42 75.36%0.07 879 1973/03/04 03:00:00 1973/03/04 04:00:00 2 0.42 75.45%0.07 880 1974/02/19 17:00:00 1974/02/19 19:00:00 3 0.42 75.54%0.07 881 1972/10/17 02:00:00 1972/10/17 05:00:00 4 0.41 75.62%0.07 882 1963/04/14 15:00:00 1963/04/14 21:00:00 7 0.4 75.71%0.07 883 1975/04/25 05:00:00 1975/04/25 09:00:00 5 0.4 75.79%0.07 884 1954/07/13 04:00:00 1954/07/13 06:00:00 3 0.39 75.88%0.07 885 1955/12/04 05:00:00 1955/12/04 11:00:00 7 0.36 75.97%0.07 19/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 886 1965/12/21 23:00:00 1965/12/22 11:00:00 13 0.36 76.05%0.07 887 1951/11/12 23:00:00 1951/11/13 03:00:00 5 0.35 76.14%0.07 888 1958/01/30 12:00:00 1958/01/30 14:00:00 3 0.35 76.22%0.07 889 1964/02/15 06:00:00 1964/02/15 11:00:00 6 0.35 76.31%0.07 890 1965/01/07 08:00:00 1965/01/07 11:00:00 4 0.35 76.39%0.07 891 2001/12/20 14:00:00 2001/12/21 20:00:00 31 0.35 76.48%0.07 892 2002/12/29 13:00:00 2002/12/29 20:00:00 8 0.35 76.57%0.07 893 2003/01/20 13:00:00 2003/01/20 20:00:00 8 0.35 76.65%0.07 894 1960/03/28 00:00:00 1960/03/28 06:00:00 7 0.34 76.74%0.07 895 1961/03/28 00:00:00 1961/03/28 17:00:00 18 0.34 76.82%0.07 896 2003/03/22 13:00:00 2003/03/22 20:00:00 8 0.33 76.91%0.07 897 1955/04/18 08:00:00 1955/04/18 10:00:00 3 0.32 77.00%0.07 898 1971/05/07 16:00:00 1971/05/07 23:00:00 8 0.32 77.08%0.07 899 1957/01/24 04:00:00 1957/01/24 23:00:00 20 0.28 77.17%0.07 900 1957/11/04 03:00:00 1957/11/04 11:00:00 9 0.28 77.25%0.06 901 1965/01/20 03:00:00 1965/01/20 08:00:00 6 0.28 77.34%0.06 902 1968/12/11 05:00:00 1968/12/11 10:00:00 6 0.28 77.42%0.06 903 1968/12/20 09:00:00 1968/12/20 12:00:00 4 0.28 77.51%0.06 904 1971/01/02 06:00:00 1971/01/02 11:00:00 6 0.28 77.60%0.06 905 1971/12/13 03:00:00 1971/12/13 07:00:00 5 0.28 77.68%0.06 906 1992/12/03 11:00:00 1992/12/04 10:00:00 24 0.28 77.77%0.06 907 1993/11/22 13:00:00 1993/11/23 04:00:00 16 0.28 77.85%0.06 908 1993/12/14 16:00:00 1993/12/15 08:00:00 17 0.28 77.94%0.06 909 1994/02/20 11:00:00 1994/02/21 07:00:00 21 0.28 78.03%0.06 910 1994/12/13 05:00:00 1994/12/13 07:00:00 3 0.28 78.11%0.06 911 1995/12/13 01:00:00 1995/12/13 10:00:00 10 0.28 78.20%0.06 912 1996/01/28 04:00:00 1996/01/28 07:00:00 4 0.28 78.28%0.06 913 1998/04/15 13:00:00 1998/04/15 20:00:00 8 0.28 78.37%0.06 914 1998/12/04 00:00:00 1998/12/05 03:00:00 28 0.28 78.45%0.06 915 2003/11/01 04:00:00 2003/11/01 10:00:00 7 0.28 78.54%0.06 916 2003/12/07 10:00:00 2003/12/08 01:00:00 16 0.28 78.63%0.06 917 2004/01/02 17:00:00 2004/01/03 15:00:00 23 0.28 78.71%0.06 918 2004/01/28 02:00:00 2004/01/28 07:00:00 6 0.28 78.80%0.06 919 2004/12/08 04:00:00 2004/12/08 09:00:00 6 0.28 78.88%0.06 920 1952/01/07 03:00:00 1952/01/08 11:00:00 33 0.27 78.97%0.06 921 1957/11/02 07:00:00 1957/11/03 02:00:00 20 0.27 79.06%0.06 922 1962/02/26 09:00:00 1962/02/26 12:00:00 4 0.27 79.14%0.06 923 1971/11/12 07:00:00 1971/11/12 10:00:00 4 0.27 79.23%0.06 924 1994/11/16 08:00:00 1994/11/16 10:00:00 3 0.27 79.31%0.06 925 1995/11/01 05:00:00 1995/11/01 21:00:00 17 0.27 79.40%0.06 926 1999/02/09 19:00:00 1999/02/09 21:00:00 3 0.27 79.48%0.06 927 2001/12/14 14:00:00 2001/12/14 19:00:00 6 0.27 79.57%0.06 928 2001/12/30 14:00:00 2001/12/30 19:00:00 6 0.27 79.66%0.06 929 2003/11/16 00:00:00 2003/11/16 09:00:00 10 0.27 79.74%0.06 930 2005/02/07 02:00:00 2005/02/07 07:00:00 6 0.27 79.83%0.06 931 1953/03/20 02:00:00 1953/03/20 11:00:00 10 0.26 79.91%0.06 932 1957/11/16 01:00:00 1957/11/16 23:00:00 23 0.26 80.00%0.06 20/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 933 1992/10/23 06:00:00 1992/10/23 09:00:00 4 0.26 80.09%0.06 934 1992/10/30 16:00:00 1992/10/30 20:00:00 5 0.26 80.17%0.06 935 1998/01/13 14:00:00 1998/01/13 19:00:00 6 0.26 80.26%0.06 936 1998/01/19 14:00:00 1998/01/20 18:00:00 29 0.26 80.34%0.06 937 1999/03/11 11:00:00 1999/03/11 15:00:00 5 0.26 80.43%0.06 938 2001/04/20 23:00:00 2001/04/21 13:00:00 15 0.26 80.52%0.06 939 2005/03/18 20:00:00 2005/03/20 04:00:00 33 0.26 80.60%0.06 940 2006/03/06 23:00:00 2006/03/07 02:00:00 4 0.26 80.69%0.06 941 2006/03/17 18:00:00 2006/03/18 08:00:00 15 0.26 80.77%0.06 942 1956/04/10 13:00:00 1956/04/11 13:00:00 25 0.25 80.86%0.06 943 1972/09/06 01:00:00 1972/09/06 07:00:00 7 0.25 80.94%0.06 944 1995/05/13 06:00:00 1995/05/13 09:00:00 4 0.25 81.03%0.06 945 1999/03/07 01:00:00 1999/03/07 05:00:00 5 0.25 81.12%0.06 946 1962/06/15 00:00:00 1962/06/15 13:00:00 14 0.24 81.20%0.06 947 1992/08/13 16:00:00 1992/08/13 19:00:00 4 0.24 81.29%0.06 948 1995/07/16 08:00:00 1995/07/16 10:00:00 3 0.24 81.37%0.06 949 1997/02/27 16:00:00 1997/02/27 22:00:00 7 0.24 81.46%0.06 950 2002/11/29 14:00:00 2002/11/29 19:00:00 6 0.22 81.55%0.06 951 1953/01/13 17:00:00 1953/01/13 23:00:00 7 0.21 81.63%0.06 952 1955/12/01 18:00:00 1955/12/02 00:00:00 7 0.2 81.72%0.06 953 1955/12/06 23:00:00 1955/12/07 03:00:00 5 0.2 81.80%0.06 954 1956/01/20 15:00:00 1956/01/21 00:00:00 10 0.2 81.89%0.06 955 1962/03/29 06:00:00 1962/03/29 09:00:00 4 0.2 81.97%0.06 956 1962/12/18 07:00:00 1962/12/18 10:00:00 4 0.2 82.06%0.06 957 1967/01/30 23:00:00 1967/01/31 08:00:00 10 0.2 82.15%0.06 958 1970/01/11 15:00:00 1970/01/12 08:00:00 18 0.2 82.23%0.06 959 1972/11/08 01:00:00 1972/11/08 05:00:00 5 0.2 82.32%0.06 960 2002/01/28 03:00:00 2002/01/29 08:00:00 30 0.2 82.40%0.06 961 1955/11/21 09:00:00 1955/11/21 17:00:00 9 0.19 82.49%0.06 962 1975/10/07 05:00:00 1975/10/07 09:00:00 5 0.19 82.58%0.06 963 1956/10/23 11:00:00 1956/10/23 13:00:00 3 0.18 82.66%0.06 964 1964/03/31 16:00:00 1964/04/01 10:00:00 19 0.18 82.75%0.06 965 1973/03/21 20:00:00 1973/03/21 22:00:00 3 0.17 82.83%0.06 966 2002/04/26 09:00:00 2002/04/26 14:00:00 6 0.17 82.92%0.06 967 1952/04/28 03:00:00 1952/04/28 08:00:00 6 0.16 83.00%0.06 968 1953/04/29 18:00:00 1953/04/30 06:00:00 13 0.16 83.09%0.06 969 1953/04/21 20:00:00 1953/04/21 22:00:00 3 0.14 83.18%0.06 970 2000/01/31 15:00:00 2000/01/31 19:00:00 5 0.14 83.26%0.06 971 1957/03/09 15:00:00 1957/03/09 22:00:00 8 0.13 83.35%0.06 972 1959/11/01 20:00:00 1959/11/01 22:00:00 3 0.12 83.43%0.06 973 1964/01/14 09:00:00 1964/01/14 14:00:00 6 0.12 83.52%0.06 974 1969/02/15 16:00:00 1969/02/16 00:00:00 9 0.12 83.61%0.06 975 1969/11/15 09:00:00 1969/11/15 21:00:00 13 0.12 83.69%0.06 976 1975/02/14 02:00:00 1975/02/14 07:00:00 6 0.12 83.78%0.06 977 1964/06/09 07:00:00 1964/06/09 14:00:00 8 0.11 83.86%0.06 978 1966/03/02 05:00:00 1966/03/02 09:00:00 5 0.11 83.95%0.06 979 1954/04/28 05:00:00 1954/04/28 10:00:00 6 0.1 84.03%0.06 21/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 980 1957/04/15 01:00:00 1957/04/15 08:00:00 8 0.1 84.12%0.06 981 1952/04/25 19:00:00 1952/04/25 20:00:00 2 0.09 84.21%0.06 982 1956/04/01 13:00:00 1956/04/01 14:00:00 2 0.09 84.29%0.06 983 1956/05/17 18:00:00 1956/05/17 19:00:00 2 0.09 84.38%0.06 984 1958/03/02 17:00:00 1958/03/02 19:00:00 3 0.09 84.46%0.06 985 1959/09/29 02:00:00 1959/09/29 03:00:00 2 0.09 84.55%0.06 986 1961/03/24 23:00:00 1961/03/25 05:00:00 7 0.09 84.64%0.06 987 1961/05/07 04:00:00 1961/05/07 06:00:00 3 0.09 84.72%0.06 988 1964/05/17 00:00:00 1964/05/17 01:00:00 2 0.09 84.81%0.06 989 1970/04/21 12:00:00 1970/04/21 13:00:00 2 0.09 84.89%0.06 990 1972/06/06 13:00:00 1972/06/06 14:00:00 2 0.09 84.98%0.06 991 1975/10/30 17:00:00 1975/10/30 18:00:00 2 0.09 85.06%0.06 992 1959/07/21 15:00:00 1959/07/21 17:00:00 3 0.08 85.15%0.06 993 1960/05/03 20:00:00 1960/05/04 12:00:00 17 0.08 85.24%0.06 994 1960/10/23 05:00:00 1960/10/23 10:00:00 6 0.08 85.32%0.06 995 1961/03/04 14:00:00 1961/03/04 19:00:00 6 0.08 85.41%0.06 996 1968/05/12 03:00:00 1968/05/12 05:00:00 3 0.08 85.49%0.06 997 1968/10/30 00:00:00 1968/10/30 14:00:00 15 0.08 85.58%0.06 998 1972/09/03 15:00:00 1972/09/03 16:00:00 2 0.08 85.67%0.06 999 1974/11/02 00:00:00 1974/11/02 01:00:00 2 0.08 85.75%0.06 1000 1975/03/06 16:00:00 1975/03/06 20:00:00 5 0.08 85.84%0.06 1001 1987/02/15 19:00:00 1987/02/15 20:00:00 2 0.08 85.92%0.06 1002 1987/02/18 17:00:00 1987/02/18 18:00:00 2 0.08 86.01%0.06 1003 1992/11/22 23:00:00 1992/11/23 00:00:00 2 0.08 86.09%0.06 1004 1992/12/11 21:00:00 1992/12/11 22:00:00 2 0.08 86.18%0.06 1005 1993/10/16 07:00:00 1993/10/16 08:00:00 2 0.08 86.27%0.06 1006 1993/11/01 03:00:00 1993/11/01 04:00:00 2 0.08 86.35%0.06 1007 1993/11/12 03:00:00 1993/11/12 04:00:00 2 0.08 86.44%0.06 1008 1993/12/19 04:00:00 1993/12/19 05:00:00 2 0.08 86.52%0.06 1009 1994/04/25 18:00:00 1994/04/27 18:00:00 49 0.08 86.61%0.06 1010 1994/05/08 08:00:00 1994/05/08 09:00:00 2 0.08 86.70%0.06 1011 1994/05/11 22:00:00 1994/05/11 23:00:00 2 0.08 86.78%0.06 1012 1994/05/15 06:00:00 1994/05/15 07:00:00 2 0.08 86.87%0.06 1013 1994/10/04 13:00:00 1994/10/04 14:00:00 2 0.08 86.95%0.06 1014 1994/11/18 05:00:00 1994/11/18 06:00:00 2 0.08 87.04%0.06 1015 1994/12/22 21:00:00 1994/12/22 22:00:00 2 0.08 87.12%0.06 1016 1995/12/16 00:00:00 1995/12/16 01:00:00 2 0.08 87.21%0.06 1017 1996/01/19 08:00:00 1996/01/19 09:00:00 2 0.08 87.30%0.06 1018 1996/04/02 07:00:00 1996/04/02 08:00:00 2 0.08 87.38%0.06 1019 1996/12/31 16:00:00 1996/12/31 17:00:00 2 0.08 87.47%0.06 1020 1998/09/03 03:00:00 1998/09/03 09:00:00 7 0.08 87.55%0.06 1021 1998/09/26 08:00:00 1998/09/26 09:00:00 2 0.08 87.64%0.06 1022 1998/11/11 09:00:00 1998/11/11 21:00:00 13 0.08 87.73%0.06 1023 1999/02/07 09:00:00 1999/02/07 10:00:00 2 0.08 87.81%0.06 1024 1999/03/04 01:00:00 1999/03/04 02:00:00 2 0.08 87.90%0.06 1025 1999/04/08 23:00:00 1999/04/09 00:00:00 2 0.08 87.98%0.06 1026 1999/05/23 01:00:00 1999/05/23 02:00:00 2 0.08 88.07%0.06 22/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1027 1999/07/05 19:00:00 1999/07/05 20:00:00 2 0.08 88.15%0.06 1028 1999/09/21 08:00:00 1999/09/21 09:00:00 2 0.08 88.24%0.06 1029 1999/12/10 04:00:00 1999/12/10 05:00:00 2 0.08 88.33%0.06 1030 2000/02/16 15:00:00 2000/02/17 19:00:00 29 0.08 88.41%0.06 1031 2000/04/14 21:00:00 2000/04/14 22:00:00 2 0.08 88.50%0.06 1032 2000/04/21 19:00:00 2000/04/21 20:00:00 2 0.08 88.58%0.06 1033 2000/09/07 14:00:00 2000/09/07 15:00:00 2 0.08 88.67%0.06 1034 2000/10/04 08:00:00 2000/10/04 09:00:00 2 0.08 88.76%0.06 1035 2000/10/06 14:00:00 2000/10/06 15:00:00 2 0.08 88.84%0.06 1036 2000/10/11 07:00:00 2000/10/11 08:00:00 2 0.08 88.93%0.06 1037 2001/01/24 11:00:00 2001/01/25 02:00:00 16 0.08 89.01%0.06 1038 2001/05/29 23:00:00 2001/05/30 00:00:00 2 0.08 89.10%0.06 1039 2003/07/30 08:00:00 2003/07/30 09:00:00 2 0.08 89.18%0.06 1040 2003/08/20 22:00:00 2003/08/20 23:00:00 2 0.08 89.27%0.06 1041 2003/11/03 17:00:00 2003/11/04 00:00:00 8 0.08 89.36%0.06 1042 2003/12/17 10:00:00 2003/12/17 11:00:00 2 0.08 89.44%0.06 1043 2004/01/19 07:00:00 2004/01/19 08:00:00 2 0.08 89.53%0.06 1044 2004/01/25 02:00:00 2004/01/25 03:00:00 2 0.08 89.61%0.06 1045 2004/06/19 10:00:00 2004/06/19 11:00:00 2 0.08 89.70%0.06 1046 2004/11/08 07:00:00 2004/11/08 08:00:00 2 0.08 89.79%0.06 1047 2004/11/12 10:00:00 2004/11/12 11:00:00 2 0.08 89.87%0.06 1048 2004/11/29 22:00:00 2004/11/29 23:00:00 2 0.08 89.96%0.06 1049 2005/02/25 07:00:00 2005/02/25 08:00:00 2 0.08 90.04%0.06 1050 2005/04/24 13:00:00 2005/04/24 14:00:00 2 0.08 90.13%0.06 1051 2005/10/25 06:00:00 2005/10/25 07:00:00 2 0.08 90.21%0.06 1052 2006/01/30 08:00:00 2006/01/30 09:00:00 2 0.08 90.30%0.06 1053 2006/02/01 08:00:00 2006/02/01 09:00:00 2 0.08 90.39%0.06 1054 2006/04/01 10:00:00 2006/04/01 11:00:00 2 0.08 90.47%0.06 1055 2006/05/27 05:00:00 2006/05/27 06:00:00 2 0.08 90.56%0.06 1056 2006/08/04 04:00:00 2006/08/04 05:00:00 2 0.08 90.64%0.06 1057 2007/03/21 05:00:00 2007/03/21 06:00:00 2 0.08 90.73%0.06 1058 2007/03/27 05:00:00 2007/03/27 06:00:00 2 0.08 90.82%0.06 1059 2007/09/28 06:00:00 2007/09/28 07:00:00 2 0.08 90.90%0.06 1060 1969/02/28 19:00:00 1969/02/28 21:00:00 3 0.07 90.99%0.06 1061 1974/04/01 21:00:00 1974/04/02 02:00:00 6 0.07 91.07%0.06 1062 1998/04/07 14:00:00 1998/04/07 19:00:00 6 0.07 91.16%0.06 1063 1998/04/13 14:00:00 1998/04/13 19:00:00 6 0.07 91.24%0.06 1064 1959/10/27 11:00:00 1959/10/27 13:00:00 3 0.06 91.33%0.06 1065 1960/06/23 16:00:00 1960/06/23 17:00:00 2 0.06 91.42%0.05 1066 1960/12/08 18:00:00 1960/12/08 20:00:00 3 0.06 91.50%0.05 1067 1962/03/02 23:00:00 1962/03/03 02:00:00 4 0.06 91.59%0.05 1068 1962/10/14 19:00:00 1962/10/15 01:00:00 7 0.06 91.67%0.05 1069 1963/04/21 02:00:00 1963/04/21 05:00:00 4 0.06 91.76%0.05 1070 1963/05/31 23:00:00 1963/06/01 03:00:00 5 0.06 91.85%0.05 1071 1966/02/10 16:00:00 1966/02/10 18:00:00 3 0.06 91.93%0.05 1072 1967/04/24 09:00:00 1967/04/24 11:00:00 3 0.06 92.02%0.05 1073 1967/04/28 09:00:00 1967/04/29 08:00:00 24 0.06 92.10%0.05 23/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1074 1967/08/31 01:00:00 1967/08/31 02:00:00 2 0.06 92.19%0.05 1075 1967/12/16 04:00:00 1967/12/16 18:00:00 15 0.06 92.27%0.05 1076 1968/03/13 17:00:00 1968/03/13 23:00:00 7 0.06 92.36%0.05 1077 1968/07/28 06:00:00 1968/07/28 07:00:00 2 0.06 92.45%0.05 1078 1968/11/04 03:00:00 1968/11/04 04:00:00 2 0.06 92.53%0.05 1079 1968/11/30 19:00:00 1968/11/30 23:00:00 5 0.06 92.62%0.05 1080 1971/05/29 06:00:00 1971/05/29 07:00:00 2 0.06 92.70%0.05 1081 1972/05/18 23:00:00 1972/05/20 05:00:00 31 0.06 92.79%0.05 1082 1973/01/04 13:00:00 1973/01/04 15:00:00 3 0.06 92.88%0.05 1083 1974/01/20 16:00:00 1974/01/20 23:00:00 8 0.06 92.96%0.05 1084 1975/05/20 02:00:00 1975/05/20 09:00:00 8 0.06 93.05%0.05 1085 1975/06/17 05:00:00 1975/06/18 07:00:00 27 0.06 93.13%0.05 1086 2002/01/25 01:00:00 2002/01/25 02:00:00 2 0.06 93.22%0.05 1087 2002/03/01 06:00:00 2002/03/01 11:00:00 6 0.06 93.30%0.05 1088 2002/03/07 08:00:00 2002/03/07 23:00:00 16 0.06 93.39%0.05 1089 2002/03/23 05:00:00 2002/03/24 00:00:00 20 0.06 93.48%0.05 1090 1951/09/28 03:00:00 1951/10/01 07:00:00 77 0.05 93.56%0.05 1091 1955/01/06 10:00:00 1955/01/06 13:00:00 4 0.05 93.65%0.05 1092 1961/12/14 10:00:00 1961/12/14 18:00:00 9 0.05 93.73%0.05 1093 1967/06/13 01:00:00 1967/06/13 07:00:00 7 0.05 93.82%0.05 1094 1969/01/30 23:00:00 1969/01/31 04:00:00 6 0.05 93.91%0.05 1095 1970/03/10 08:00:00 1970/03/10 11:00:00 4 0.05 93.99%0.05 1096 1971/05/06 02:00:00 1971/05/06 07:00:00 6 0.05 94.08%0.05 1097 1973/01/30 14:00:00 1973/01/30 16:00:00 3 0.05 94.16%0.05 1098 1998/06/12 15:00:00 1998/06/12 18:00:00 4 0.05 94.25%0.05 1099 1998/06/16 15:00:00 1998/06/16 18:00:00 4 0.05 94.33%0.05 1100 2000/01/01 15:00:00 2000/01/02 18:00:00 28 0.05 94.42%0.05 1101 2000/02/27 16:00:00 2000/02/28 18:00:00 27 0.05 94.51%0.05 1102 2002/09/20 15:00:00 2002/09/20 18:00:00 4 0.05 94.59%0.05 1103 2003/05/07 15:00:00 2003/05/07 18:00:00 4 0.05 94.68%0.05 1104 2003/06/23 15:00:00 2003/06/23 18:00:00 4 0.05 94.76%0.05 1105 1952/02/17 22:00:00 1952/02/18 05:00:00 8 0.04 94.85%0.05 1106 1952/03/19 01:00:00 1952/03/19 07:00:00 7 0.04 94.94%0.05 1107 1953/06/18 10:00:00 1953/06/18 12:00:00 3 0.04 95.02%0.05 1108 1956/01/23 09:00:00 1956/01/23 14:00:00 6 0.04 95.11%0.05 1109 1956/10/04 08:00:00 1956/10/04 11:00:00 4 0.04 95.19%0.05 1110 1957/11/05 14:00:00 1957/11/05 17:00:00 4 0.04 95.28%0.05 1111 1958/11/15 23:00:00 1958/11/16 01:00:00 3 0.04 95.36%0.05 1112 1959/06/28 03:00:00 1959/06/28 04:00:00 2 0.04 95.45%0.05 1113 1960/02/19 02:00:00 1960/02/19 04:00:00 3 0.04 95.54%0.05 1114 1961/11/30 13:00:00 1961/11/30 15:00:00 3 0.04 95.62%0.05 1115 1962/02/12 09:00:00 1962/02/12 11:00:00 3 0.04 95.71%0.05 1116 1962/05/26 02:00:00 1962/05/26 04:00:00 3 0.04 95.79%0.05 1117 1963/01/31 22:00:00 1963/02/01 02:00:00 5 0.04 95.88%0.05 1118 1963/05/28 01:00:00 1963/05/28 08:00:00 8 0.04 95.97%0.05 1119 1964/11/12 00:00:00 1964/11/12 05:00:00 6 0.04 96.05%0.05 1120 1964/11/26 12:00:00 1964/11/26 16:00:00 5 0.04 96.14%0.05 24/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPre.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1121 1966/11/21 00:00:00 1966/11/21 01:00:00 2 0.04 96.22%0.05 1122 1967/03/04 09:00:00 1967/03/04 13:00:00 5 0.04 96.31%0.05 1123 1969/06/17 06:00:00 1969/06/17 09:00:00 4 0.04 96.39%0.05 1124 1972/06/20 18:00:00 1972/06/20 22:00:00 5 0.04 96.48%0.05 1125 1975/03/31 11:00:00 1975/04/01 04:00:00 18 0.04 96.57%0.05 1126 2001/04/04 17:00:00 2001/04/04 18:00:00 2 0.04 96.65%0.05 1127 1952/06/06 09:00:00 1952/06/06 11:00:00 3 0.03 96.74%0.05 1128 1955/05/24 10:00:00 1955/05/25 05:00:00 20 0.03 96.82%0.05 1129 1962/03/16 23:00:00 1962/03/17 02:00:00 4 0.03 96.91%0.05 1130 1964/12/23 16:00:00 1964/12/23 19:00:00 4 0.03 97.00%0.05 1131 1967/07/26 19:00:00 1967/07/26 21:00:00 3 0.03 97.08%0.05 1132 1968/07/07 02:00:00 1968/07/07 05:00:00 4 0.03 97.17%0.05 1133 1969/06/10 10:00:00 1969/06/10 13:00:00 4 0.03 97.25%0.05 1134 1970/01/14 19:00:00 1970/01/14 21:00:00 3 0.03 97.34%0.05 1135 2000/01/16 16:00:00 2000/01/16 18:00:00 3 0.03 97.42%0.05 1136 2001/02/10 16:00:00 2001/02/10 18:00:00 3 0.03 97.51%0.05 1137 1951/10/13 06:00:00 1951/10/13 07:00:00 2 0.02 97.60%0.05 1138 1955/05/07 11:00:00 1955/05/07 20:00:00 10 0.02 97.68%0.05 1139 1955/05/22 10:00:00 1955/05/22 14:00:00 5 0.02 97.77%0.05 1140 1959/05/26 17:00:00 1959/05/26 18:00:00 2 0.02 97.85%0.05 1141 1959/12/08 09:00:00 1959/12/08 13:00:00 5 0.02 97.94%0.05 1142 1963/03/23 09:00:00 1963/03/23 12:00:00 4 0.02 98.03%0.05 1143 1964/04/19 12:00:00 1964/04/19 13:00:00 2 0.02 98.11%0.05 1144 1965/06/25 08:00:00 1965/06/25 10:00:00 3 0.02 98.20%0.05 1145 1966/02/02 00:00:00 1966/02/02 07:00:00 8 0.02 98.28%0.05 1146 1967/05/10 06:00:00 1967/05/10 08:00:00 3 0.02 98.37%0.05 1147 1967/09/18 20:00:00 1967/09/18 22:00:00 3 0.02 98.45%0.05 1148 1968/02/10 01:00:00 1968/02/10 03:00:00 3 0.02 98.54%0.05 1149 1968/03/17 02:00:00 1968/03/17 03:00:00 2 0.02 98.63%0.05 1150 1968/05/21 06:00:00 1968/05/21 10:00:00 5 0.02 98.71%0.05 1151 1969/12/22 04:00:00 1969/12/22 05:00:00 2 0.02 98.80%0.05 1152 1970/06/12 20:00:00 1970/06/12 23:00:00 4 0.02 98.88%0.05 1153 1974/11/21 15:00:00 1974/11/21 20:00:00 6 0.02 98.97%0.05 1154 1997/12/21 17:00:00 1997/12/22 18:00:00 26 0.02 99.06%0.05 1155 1998/01/16 17:00:00 1998/01/16 18:00:00 2 0.02 99.14%0.05 1156 1998/03/09 17:00:00 1998/03/09 18:00:00 2 0.02 99.23%0.05 1157 1998/05/08 17:00:00 1998/05/08 18:00:00 2 0.02 99.31%0.05 1158 2001/04/12 17:00:00 2001/04/12 18:00:00 2 0.02 99.40%0.05 1159 2001/11/04 17:00:00 2001/11/04 18:00:00 2 0.02 99.48%0.05 1160 2001/12/23 17:00:00 2001/12/23 18:00:00 2 0.02 99.57%0.05 1161 2002/01/03 17:00:00 2002/01/03 18:00:00 2 0.02 99.66%0.05 1162 2003/03/04 17:00:00 2003/03/04 18:00:00 2 0.02 99.74%0.05 1163 2003/04/17 17:00:00 2003/04/17 18:00:00 2 0.02 99.83%0.05 1164 2003/04/23 17:00:00 2003/04/23 18:00:00 2 0.02 99.91%0.05 -------------End of Data----------------- 25/2510/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 1 1995/01/03 09:00:00 1995/01/06 01:00:00 65 17.97 0.12%58 2 1978/02/27 08:00:00 1978/03/06 07:00:00 168 9.77 0.23%29 3 1980/01/28 01:00:00 1980/01/31 15:00:00 87 8.25 0.35%19.33 4 2008/02/20 12:00:00 2008/02/25 16:00:00 125 7.12 0.46%14.5 5 1968/03/07 23:00:00 1968/03/09 17:00:00 43 6.45 0.58%11.6 6 2003/02/25 06:00:00 2003/02/28 18:00:00 85 6.06 0.69%9.67 7 1986/02/13 10:00:00 1986/02/18 00:00:00 111 5.67 0.81%8.29 8 1979/01/05 08:00:00 1979/01/07 16:00:00 57 5.37 0.93%7.25 9 1969/02/18 08:00:00 1969/02/27 01:00:00 210 5.19 1.04%6.44 10 2004/10/27 03:00:00 2004/10/29 09:00:00 55 4.38 1.16%5.8 11 1965/11/21 09:00:00 1965/11/26 04:00:00 116 4.19 1.27%5.27 12 1978/02/05 11:00:00 1978/02/15 04:00:00 234 3.92 1.39%4.83 13 1952/01/16 08:00:00 1952/01/19 11:00:00 76 3.84 1.50%4.46 14 1958/02/03 05:00:00 1958/02/05 21:00:00 65 3.82 1.62%4.14 15 1982/03/14 14:00:00 1982/03/19 20:00:00 127 3.8 1.74%3.87 16 2005/02/18 05:00:00 2005/02/25 14:00:00 178 3.78 1.85%3.63 17 1998/02/03 07:00:00 1998/02/10 05:00:00 167 3.25 1.97%3.41 18 1980/02/13 13:00:00 1980/02/22 11:00:00 215 3.23 2.08%3.22 19 1980/03/02 21:00:00 1980/03/04 21:00:00 49 3.22 2.20%3.05 20 1977/08/16 18:00:00 1977/08/19 05:00:00 60 3.15 2.31%2.9 21 1998/02/22 05:00:00 1998/02/25 22:00:00 90 3.13 2.43%2.76 22 1978/01/14 17:00:00 1978/01/18 05:00:00 85 3.09 2.55%2.64 23 1991/12/28 04:00:00 1991/12/31 08:00:00 77 3.08 2.66%2.52 24 1958/03/31 02:00:00 1958/04/05 04:00:00 123 3.03 2.78%2.42 25 1962/01/20 14:00:00 1962/01/23 14:00:00 73 3.03 2.89%2.32 26 1993/01/12 21:00:00 1993/01/19 18:00:00 166 3 3.01%2.23 27 2000/10/29 23:00:00 2000/10/31 19:00:00 45 2.95 3.13%2.15 28 1966/12/03 07:00:00 1966/12/08 04:00:00 118 2.89 3.24%2.07 29 2004/10/17 08:00:00 2004/10/21 22:00:00 111 2.87 3.36%2 30 1998/02/14 07:00:00 1998/02/20 23:00:00 161 2.78 3.47%1.93 31 1970/12/17 01:00:00 1970/12/22 22:00:00 142 2.77 3.59%1.87 32 1978/01/03 20:00:00 1978/01/07 13:00:00 90 2.77 3.70%1.81 33 1996/11/21 16:00:00 1996/11/23 11:00:00 44 2.77 3.82%1.76 34 1979/01/14 21:00:00 1979/01/19 21:00:00 121 2.64 3.94%1.71 35 1952/11/14 15:00:00 1952/11/17 13:00:00 71 2.62 4.05%1.66 36 1995/03/11 02:00:00 1995/03/13 05:00:00 52 2.55 4.17%1.61 37 2003/04/14 06:00:00 2003/04/16 08:00:00 51 2.51 4.28%1.57 38 1954/02/13 17:00:00 1954/02/15 08:00:00 40 2.5 4.40%1.53 39 2004/02/26 02:00:00 2004/02/27 18:00:00 41 2.5 4.51%1.49 Peak Flow Statistics Table Values SWMM.out file name: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out SWMM.out time stamp: 10/18/2022 3:36:24 PM 1/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 40 1991/02/27 19:00:00 1991/03/02 15:00:00 69 2.45 4.63%1.45 41 1960/04/27 06:00:00 1960/04/28 16:00:00 35 2.44 4.75%1.42 42 2005/01/07 09:00:00 2005/01/12 13:00:00 125 2.41 4.86%1.38 43 1983/02/24 02:00:00 1983/03/07 16:00:00 279 2.38 4.98%1.35 44 1971/12/22 08:00:00 1971/12/29 16:00:00 177 2.36 5.09%1.32 45 1993/02/07 22:00:00 1993/02/10 04:00:00 55 2.35 5.21%1.29 46 1985/11/11 07:00:00 1985/11/13 13:00:00 55 2.3 5.32%1.26 47 2007/11/30 08:00:00 2007/12/02 06:00:00 47 2.27 5.44%1.23 48 2008/01/05 05:00:00 2008/01/08 08:00:00 76 2.24 5.56%1.21 49 1961/12/01 21:00:00 1961/12/04 01:00:00 53 2.23 5.67%1.18 50 1980/01/09 04:00:00 1980/01/14 16:00:00 133 2.23 5.79%1.16 51 1983/12/24 11:00:00 1983/12/28 08:00:00 94 2.23 5.90%1.14 52 1995/03/03 13:00:00 1995/03/07 10:00:00 94 2.19 6.02%1.12 53 1972/01/16 21:00:00 1972/01/20 06:00:00 82 2.18 6.13%1.09 54 1958/02/19 10:00:00 1958/02/20 21:00:00 36 2.17 6.25%1.07 55 1960/02/01 21:00:00 1960/02/03 06:00:00 34 2.16 6.37%1.06 56 1994/02/03 23:00:00 1994/02/05 16:00:00 42 2.13 6.48%1.04 57 1963/09/17 07:00:00 1963/09/20 02:00:00 68 2.12 6.60%1.02 58 1988/12/21 01:00:00 1988/12/26 04:00:00 124 2.11 6.71%1 59 1986/11/17 19:00:00 1986/11/19 12:00:00 42 2.1 6.83%0.98 60 2003/02/11 10:00:00 2003/02/14 23:00:00 86 2.1 6.94%0.97 61 1983/01/22 17:00:00 1983/01/30 12:00:00 188 2.09 7.06%0.95 62 1965/11/14 15:00:00 1965/11/19 10:00:00 116 2 7.18%0.94 63 1987/10/11 13:00:00 1987/10/14 01:00:00 61 1.97 7.29%0.92 64 1963/03/17 00:00:00 1963/03/18 14:00:00 39 1.95 7.41%0.91 65 1992/02/12 14:00:00 1992/02/14 11:00:00 46 1.94 7.52%0.89 66 1985/11/29 07:00:00 1985/11/30 18:00:00 36 1.92 7.64%0.88 67 1957/01/13 05:00:00 1957/01/14 12:00:00 32 1.89 7.75%0.87 68 1987/12/16 14:00:00 1987/12/18 14:00:00 49 1.88 7.87%0.85 69 2002/11/08 09:00:00 2002/11/10 10:00:00 50 1.86 7.99%0.84 70 1969/02/06 09:00:00 1969/02/07 23:00:00 39 1.84 8.10%0.83 71 1960/01/10 12:00:00 1960/01/13 10:00:00 71 1.82 8.22%0.82 72 1965/12/09 09:00:00 1965/12/11 15:00:00 55 1.82 8.33%0.81 73 1967/12/18 17:00:00 1967/12/20 23:00:00 55 1.82 8.45%0.8 74 1975/04/06 00:00:00 1975/04/10 14:00:00 111 1.82 8.56%0.78 75 2004/12/28 09:00:00 2005/01/02 03:00:00 115 1.82 8.68%0.77 76 1963/11/20 04:00:00 1963/11/22 11:00:00 56 1.79 8.80%0.76 77 1967/01/22 17:00:00 1967/01/26 02:00:00 82 1.79 8.91%0.75 78 2001/02/13 11:00:00 2001/02/16 06:00:00 68 1.78 9.03%0.74 79 2008/01/27 01:00:00 2008/01/29 16:00:00 64 1.77 9.14%0.73 80 1978/09/05 17:00:00 1978/09/07 14:00:00 46 1.76 9.26%0.73 81 1997/01/12 16:00:00 1997/01/16 22:00:00 103 1.74 9.38%0.72 82 1952/03/07 09:00:00 1952/03/14 10:00:00 170 1.68 9.49%0.71 83 1994/03/24 23:00:00 1994/03/26 16:00:00 42 1.66 9.61%0.7 84 1986/03/08 16:00:00 1986/03/18 05:00:00 230 1.64 9.72%0.69 85 1969/01/24 10:00:00 1969/01/29 16:00:00 127 1.63 9.84%0.68 86 1988/11/24 02:00:00 1988/11/26 15:00:00 62 1.63 9.95%0.67 2/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 87 1956/04/12 20:00:00 1956/04/14 22:00:00 51 1.62 10.07%0.67 88 1967/03/13 11:00:00 1967/03/15 04:00:00 42 1.62 10.19%0.66 89 1990/02/17 11:00:00 1990/02/19 19:00:00 57 1.59 10.30%0.65 90 1957/05/10 12:00:00 1957/05/12 12:00:00 49 1.58 10.42%0.64 91 2005/01/03 08:00:00 2005/01/05 20:00:00 61 1.57 10.53%0.64 92 1954/01/18 21:00:00 1954/01/21 07:00:00 59 1.55 10.65%0.63 93 1985/11/24 17:00:00 1985/11/26 16:00:00 48 1.54 10.76%0.62 94 1952/11/30 02:00:00 1952/12/03 06:00:00 77 1.53 10.88%0.62 95 1958/03/15 17:00:00 1958/03/17 17:00:00 49 1.53 11.00%0.61 96 1967/11/19 08:00:00 1967/11/22 20:00:00 85 1.52 11.11%0.6 97 2003/03/15 10:00:00 2003/03/18 02:00:00 65 1.52 11.23%0.6 98 1991/03/25 03:00:00 1991/03/28 10:00:00 80 1.46 11.34%0.59 99 1951/12/28 21:00:00 1951/12/31 19:00:00 71 1.44 11.46%0.59 100 1963/02/09 18:00:00 1963/02/12 09:00:00 64 1.44 11.57%0.58 101 1970/11/28 22:00:00 1970/12/02 04:00:00 79 1.44 11.69%0.57 102 1983/11/24 22:00:00 1983/11/26 06:00:00 33 1.43 11.81%0.57 103 1992/12/07 10:00:00 1992/12/09 01:00:00 40 1.43 11.92%0.56 104 1986/09/24 02:00:00 1986/09/26 10:00:00 57 1.41 12.04%0.56 105 1993/02/18 13:00:00 1993/02/21 15:00:00 75 1.41 12.15%0.55 106 1981/11/26 23:00:00 1981/11/30 06:00:00 80 1.4 12.27%0.55 107 1958/03/20 20:00:00 1958/03/23 13:00:00 66 1.39 12.38%0.54 108 1970/02/28 14:00:00 1970/03/03 09:00:00 68 1.37 12.50%0.54 109 1954/11/11 01:00:00 1954/11/12 20:00:00 44 1.36 12.62%0.53 110 1962/02/07 22:00:00 1962/02/12 16:00:00 115 1.36 12.73%0.53 111 1959/02/11 09:00:00 1959/02/13 05:00:00 45 1.35 12.85%0.52 112 1952/03/15 21:00:00 1952/03/17 23:00:00 51 1.34 12.96%0.52 113 2005/04/28 09:00:00 2005/04/29 14:00:00 30 1.33 13.08%0.51 114 1982/12/07 22:00:00 1982/12/09 05:00:00 32 1.32 13.19%0.51 115 1957/01/26 07:00:00 1957/01/30 22:00:00 112 1.31 13.31%0.5 116 1981/03/18 19:00:00 1981/03/21 08:00:00 62 1.31 13.43%0.5 117 1988/04/20 02:00:00 1988/04/24 09:00:00 104 1.31 13.54%0.5 118 1974/03/08 01:00:00 1974/03/09 17:00:00 41 1.29 13.66%0.49 119 1982/12/22 11:00:00 1982/12/24 10:00:00 48 1.27 13.77%0.49 120 1956/01/25 18:00:00 1956/01/28 11:00:00 66 1.24 13.89%0.48 121 1958/04/06 18:00:00 1958/04/08 20:00:00 51 1.23 14.00%0.48 122 1985/12/11 04:00:00 1985/12/12 14:00:00 35 1.23 14.12%0.48 123 1992/03/20 20:00:00 1992/03/24 19:00:00 96 1.21 14.24%0.47 124 1965/04/07 06:00:00 1965/04/11 00:00:00 91 1.19 14.35%0.47 125 1974/12/04 07:00:00 1974/12/05 17:00:00 35 1.19 14.47%0.46 126 1988/04/14 20:00:00 1988/04/16 05:00:00 34 1.19 14.58%0.46 127 1966/11/07 15:00:00 1966/11/09 02:00:00 36 1.18 14.70%0.46 128 2005/02/11 04:00:00 2005/02/14 01:00:00 70 1.18 14.81%0.45 129 1976/07/08 12:00:00 1976/07/09 19:00:00 32 1.17 14.93%0.45 130 1976/07/22 11:00:00 1976/07/23 18:00:00 32 1.16 15.05%0.45 131 1988/01/17 06:00:00 1988/01/19 00:00:00 43 1.16 15.16%0.44 132 1977/12/25 19:00:00 1977/12/31 07:00:00 133 1.13 15.28%0.44 133 1992/02/15 13:00:00 1992/02/17 07:00:00 43 1.1 15.39%0.44 3/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 134 1959/12/24 10:00:00 1959/12/25 22:00:00 37 1.09 15.51%0.43 135 1977/01/05 16:00:00 1977/01/08 09:00:00 66 1.09 15.63%0.43 136 1977/05/08 00:00:00 1977/05/10 13:00:00 62 1.09 15.74%0.43 137 1976/07/15 13:00:00 1976/07/16 21:00:00 33 1.07 15.86%0.42 138 1973/11/22 22:00:00 1973/11/24 07:00:00 34 1.06 15.97%0.42 139 2007/01/30 15:00:00 2007/02/01 03:00:00 37 1.06 16.09%0.42 140 1992/01/03 11:00:00 1992/01/09 08:00:00 142 1.04 16.20%0.41 141 1994/03/06 08:00:00 1994/03/08 13:00:00 54 1.03 16.32%0.41 142 2006/10/14 02:00:00 2006/10/15 06:00:00 29 1.03 16.44%0.41 143 1960/02/28 20:00:00 1960/03/02 12:00:00 65 1.02 16.55%0.41 144 1967/04/11 08:00:00 1967/04/12 19:00:00 36 1 16.67%0.4 145 1968/12/25 19:00:00 1968/12/27 09:00:00 39 1 16.78%0.4 146 1976/03/01 16:00:00 1976/03/03 22:00:00 55 0.99 16.90%0.4 147 1993/01/06 03:00:00 1993/01/09 11:00:00 81 0.99 17.01%0.4 148 1994/03/19 03:00:00 1994/03/21 11:00:00 57 0.98 17.13%0.39 149 1975/03/08 08:00:00 1975/03/12 13:00:00 102 0.97 17.25%0.39 150 1983/09/29 12:00:00 1983/10/02 14:00:00 75 0.96 17.36%0.39 151 1981/02/08 19:00:00 1981/02/10 11:00:00 41 0.95 17.48%0.38 152 1984/12/26 16:00:00 1984/12/29 01:00:00 58 0.95 17.59%0.38 153 1992/02/06 09:00:00 1992/02/08 16:00:00 56 0.95 17.71%0.38 154 1994/02/17 11:00:00 1994/02/19 09:00:00 47 0.95 17.82%0.38 155 2001/01/10 22:00:00 2001/01/13 14:00:00 65 0.95 17.94%0.37 156 1976/09/10 02:00:00 1976/09/12 10:00:00 57 0.94 18.06%0.37 157 1983/04/18 04:00:00 1983/04/22 07:00:00 100 0.94 18.17%0.37 158 1965/03/31 14:00:00 1965/04/05 19:00:00 126 0.93 18.29%0.37 159 1988/02/02 03:00:00 1988/02/03 21:00:00 43 0.93 18.40%0.37 160 1997/01/25 21:00:00 1997/01/27 16:00:00 44 0.93 18.52%0.36 161 1977/03/24 22:00:00 1977/03/26 14:00:00 41 0.91 18.63%0.36 162 1978/01/09 17:00:00 1978/01/12 02:00:00 58 0.9 18.75%0.36 163 1985/02/09 07:00:00 1985/02/10 17:00:00 35 0.9 18.87%0.36 164 2004/02/21 20:00:00 2004/02/24 12:00:00 65 0.9 18.98%0.35 165 2006/04/04 19:00:00 2006/04/06 10:00:00 40 0.89 19.10%0.35 166 1958/01/25 04:00:00 1958/01/27 19:00:00 64 0.87 19.21%0.35 167 1981/12/30 08:00:00 1982/01/03 09:00:00 98 0.87 19.33%0.35 168 1995/01/07 14:00:00 1995/01/09 10:00:00 45 0.86 19.44%0.35 169 1995/01/10 16:00:00 1995/01/13 18:00:00 75 0.86 19.56%0.34 170 1978/12/17 00:00:00 1978/12/20 14:00:00 87 0.85 19.68%0.34 171 1996/12/09 17:00:00 1996/12/13 02:00:00 82 0.85 19.79%0.34 172 2006/02/27 21:00:00 2006/03/01 15:00:00 43 0.85 19.91%0.34 173 1991/03/19 01:00:00 1991/03/22 14:00:00 86 0.83 20.02%0.34 174 1976/02/04 06:00:00 1976/02/11 16:00:00 179 0.82 20.14%0.33 175 1977/01/03 00:00:00 1977/01/04 07:00:00 32 0.82 20.25%0.33 176 2001/01/26 14:00:00 2001/01/28 12:00:00 47 0.82 20.37%0.33 177 1979/11/07 19:00:00 1979/11/09 07:00:00 37 0.81 20.49%0.33 178 1988/12/15 11:00:00 1988/12/19 20:00:00 106 0.81 20.60%0.33 179 1978/03/30 13:00:00 1978/04/01 19:00:00 55 0.8 20.72%0.32 180 1965/02/06 01:00:00 1965/02/08 03:00:00 51 0.79 20.83%0.32 4/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 181 1979/03/17 05:00:00 1979/03/22 01:00:00 117 0.78 20.95%0.32 182 1964/11/17 15:00:00 1964/11/19 00:00:00 34 0.77 21.06%0.32 183 2002/12/20 07:00:00 2002/12/22 18:00:00 60 0.77 21.18%0.32 184 1966/02/06 13:00:00 1966/02/09 05:00:00 65 0.76 21.30%0.32 185 1973/03/20 09:00:00 1973/03/22 08:00:00 48 0.76 21.41%0.31 186 1989/03/25 12:00:00 1989/03/27 07:00:00 44 0.76 21.53%0.31 187 1957/02/28 19:00:00 1957/03/02 16:00:00 46 0.75 21.64%0.31 188 2001/02/23 11:00:00 2001/03/01 12:00:00 146 0.75 21.76%0.31 189 1959/02/21 10:00:00 1959/02/23 02:00:00 41 0.74 21.88%0.31 190 1982/02/08 15:00:00 1982/02/12 00:00:00 82 0.74 21.99%0.31 191 1983/11/11 20:00:00 1983/11/14 05:00:00 58 0.74 22.11%0.3 192 1980/03/06 00:00:00 1980/03/07 17:00:00 42 0.73 22.22%0.3 193 1982/11/09 17:00:00 1982/11/11 19:00:00 51 0.72 22.34%0.3 194 1990/04/04 08:00:00 1990/04/05 17:00:00 34 0.72 22.45%0.3 195 1992/03/02 08:00:00 1992/03/04 00:00:00 41 0.72 22.57%0.3 196 1996/10/30 14:00:00 1996/10/31 22:00:00 33 0.72 22.69%0.3 197 2007/04/20 16:00:00 2007/04/21 21:00:00 30 0.72 22.80%0.29 198 1960/01/14 19:00:00 1960/01/16 07:00:00 37 0.71 22.92%0.29 199 1965/12/12 21:00:00 1965/12/17 13:00:00 113 0.7 23.03%0.29 200 1999/01/25 07:00:00 1999/01/28 02:00:00 68 0.7 23.15%0.29 201 1998/11/08 09:00:00 1998/11/09 19:00:00 35 0.69 23.26%0.29 202 1971/04/14 11:00:00 1971/04/15 18:00:00 32 0.68 23.38%0.29 203 1981/02/28 14:00:00 1981/03/04 00:00:00 83 0.68 23.50%0.29 204 1981/03/05 03:00:00 1981/03/06 20:00:00 42 0.68 23.61%0.28 205 1951/08/28 10:00:00 1951/08/29 19:00:00 34 0.67 23.73%0.28 206 1951/12/11 22:00:00 1951/12/13 13:00:00 40 0.67 23.84%0.28 207 1978/03/09 17:00:00 1978/03/13 15:00:00 95 0.67 23.96%0.28 208 1984/11/23 08:00:00 1984/11/26 01:00:00 66 0.67 24.07%0.28 209 1972/11/14 15:00:00 1972/11/18 17:00:00 99 0.66 24.19%0.28 210 1952/01/13 05:00:00 1952/01/14 16:00:00 36 0.65 24.31%0.28 211 1988/11/14 07:00:00 1988/11/15 13:00:00 31 0.65 24.42%0.28 212 1993/03/26 00:00:00 1993/03/29 08:00:00 81 0.65 24.54%0.27 213 1961/01/26 10:00:00 1961/01/27 18:00:00 33 0.64 24.65%0.27 214 1973/03/11 06:00:00 1973/03/13 11:00:00 54 0.64 24.77%0.27 215 1999/04/11 22:00:00 1999/04/13 08:00:00 35 0.64 24.88%0.27 216 1955/01/16 10:00:00 1955/01/20 11:00:00 98 0.63 25.00%0.27 217 1971/02/17 00:00:00 1971/02/18 16:00:00 41 0.63 25.12%0.27 218 1974/01/07 16:00:00 1974/01/10 00:00:00 57 0.63 25.23%0.27 219 1974/10/28 12:00:00 1974/10/30 15:00:00 52 0.63 25.35%0.27 220 1976/12/30 15:00:00 1977/01/01 12:00:00 46 0.63 25.46%0.26 221 1986/04/06 03:00:00 1986/04/07 15:00:00 37 0.63 25.58%0.26 222 1995/04/16 09:00:00 1995/04/19 22:00:00 86 0.63 25.69%0.26 223 1970/02/10 05:00:00 1970/02/12 08:00:00 52 0.62 25.81%0.26 224 1992/12/27 21:00:00 1992/12/30 13:00:00 65 0.62 25.93%0.26 225 1958/02/25 08:00:00 1958/02/26 14:00:00 31 0.61 26.04%0.26 226 1962/03/18 19:00:00 1962/03/20 13:00:00 43 0.61 26.16%0.26 227 1970/03/05 00:00:00 1970/03/06 06:00:00 31 0.61 26.27%0.26 5/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 228 1973/02/11 08:00:00 1973/02/14 09:00:00 74 0.61 26.39%0.25 229 1979/03/01 10:00:00 1979/03/02 22:00:00 37 0.61 26.50%0.25 230 1993/01/31 00:00:00 1993/02/01 03:00:00 28 0.61 26.62%0.25 231 1979/10/20 04:00:00 1979/10/21 20:00:00 41 0.6 26.74%0.25 232 1982/04/01 10:00:00 1982/04/02 22:00:00 37 0.6 26.85%0.25 233 1983/03/17 04:00:00 1983/03/26 03:00:00 216 0.6 26.97%0.25 234 1981/01/28 07:00:00 1981/01/31 10:00:00 76 0.59 27.08%0.25 235 1981/02/25 21:00:00 1981/02/27 04:00:00 32 0.59 27.20%0.25 236 1954/03/16 23:00:00 1954/03/18 10:00:00 36 0.58 27.31%0.25 237 1959/04/26 06:00:00 1959/04/27 12:00:00 31 0.58 27.43%0.25 238 1960/09/11 05:00:00 1960/09/12 13:00:00 33 0.58 27.55%0.24 239 1983/04/29 08:00:00 1983/05/03 01:00:00 90 0.58 27.66%0.24 240 1984/12/18 09:00:00 1984/12/21 08:00:00 72 0.58 27.78%0.24 241 1987/01/06 21:00:00 1987/01/08 08:00:00 36 0.58 27.89%0.24 242 1990/01/17 01:00:00 1990/01/19 06:00:00 54 0.58 28.01%0.24 243 1952/12/20 12:00:00 1952/12/21 19:00:00 32 0.57 28.13%0.24 244 1955/04/30 21:00:00 1955/05/02 23:00:00 51 0.57 28.24%0.24 245 1957/04/20 16:00:00 1957/04/23 07:00:00 64 0.57 28.36%0.24 246 2003/12/25 01:00:00 2003/12/27 00:00:00 48 0.57 28.47%0.24 247 1993/06/05 14:00:00 1993/06/06 21:00:00 32 0.56 28.59%0.24 248 1958/03/06 10:00:00 1958/03/08 05:00:00 44 0.55 28.70%0.23 249 1979/03/27 06:00:00 1979/03/29 14:00:00 57 0.55 28.82%0.23 250 1982/01/20 05:00:00 1982/01/22 15:00:00 59 0.55 28.94%0.23 251 1983/12/03 17:00:00 1983/12/05 01:00:00 33 0.55 29.05%0.23 252 1986/10/09 21:00:00 1986/10/12 02:00:00 54 0.55 29.17%0.23 253 1959/02/16 04:00:00 1959/02/18 03:00:00 48 0.54 29.28%0.23 254 1964/01/21 08:00:00 1964/01/23 15:00:00 56 0.54 29.40%0.23 255 1976/08/30 11:00:00 1976/08/31 17:00:00 31 0.54 29.51%0.23 256 1991/01/09 15:00:00 1991/01/10 18:00:00 28 0.54 29.63%0.23 257 1982/01/05 07:00:00 1982/01/06 19:00:00 37 0.53 29.75%0.23 258 1986/02/08 00:00:00 1986/02/09 18:00:00 43 0.53 29.86%0.23 259 1993/11/30 05:00:00 1993/12/01 11:00:00 31 0.53 29.98%0.22 260 1954/03/20 12:00:00 1954/03/26 07:00:00 140 0.52 30.09%0.22 261 1959/12/21 02:00:00 1959/12/22 14:00:00 37 0.52 30.21%0.22 262 1967/11/30 17:00:00 1967/12/01 21:00:00 29 0.52 30.32%0.22 263 1964/12/27 09:00:00 1964/12/29 11:00:00 51 0.51 30.44%0.22 264 1987/12/04 22:00:00 1987/12/06 06:00:00 33 0.51 30.56%0.22 265 1969/11/06 20:00:00 1969/11/08 15:00:00 44 0.5 30.67%0.22 266 1984/12/08 00:00:00 1984/12/09 06:00:00 31 0.5 30.79%0.22 267 2006/03/10 18:00:00 2006/03/12 19:00:00 50 0.5 30.90%0.22 268 2002/12/16 13:00:00 2002/12/18 06:00:00 42 0.49 31.02%0.22 269 1959/12/10 01:00:00 1959/12/11 09:00:00 33 0.48 31.13%0.22 270 1980/03/26 00:00:00 1980/03/27 05:00:00 30 0.48 31.25%0.22 271 1990/05/28 08:00:00 1990/05/29 18:00:00 35 0.48 31.37%0.21 272 1994/01/25 00:00:00 1994/01/28 12:00:00 85 0.48 31.48%0.21 273 1952/12/30 20:00:00 1953/01/01 08:00:00 37 0.47 31.60%0.21 274 1957/12/05 04:00:00 1957/12/06 18:00:00 39 0.47 31.71%0.21 6/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 275 1969/03/21 14:00:00 1969/03/23 02:00:00 37 0.47 31.83%0.21 276 1972/12/04 16:00:00 1972/12/06 00:00:00 33 0.47 31.94%0.21 277 1979/01/30 20:00:00 1979/02/03 17:00:00 94 0.47 32.06%0.21 278 2001/04/07 14:00:00 2001/04/11 11:00:00 94 0.47 32.18%0.21 279 2001/12/09 09:00:00 2001/12/11 03:00:00 43 0.46 32.29%0.21 280 1957/01/07 15:00:00 1957/01/08 23:00:00 33 0.45 32.41%0.21 281 1957/10/13 23:00:00 1957/10/15 13:00:00 39 0.45 32.52%0.21 282 1960/11/26 19:00:00 1960/11/28 01:00:00 31 0.45 32.64%0.21 283 1973/03/04 06:00:00 1973/03/09 20:00:00 135 0.45 32.75%0.21 284 1999/03/25 16:00:00 1999/03/27 00:00:00 33 0.45 32.87%0.2 285 2004/12/04 16:00:00 2004/12/06 22:00:00 55 0.45 32.99%0.2 286 1962/02/19 11:00:00 1962/02/22 12:00:00 74 0.44 33.10%0.2 287 1963/11/15 17:00:00 1963/11/17 00:00:00 32 0.44 33.22%0.2 288 1965/12/29 19:00:00 1966/01/01 17:00:00 71 0.44 33.33%0.2 289 1982/11/29 13:00:00 1982/12/01 18:00:00 54 0.44 33.45%0.2 290 1997/12/06 13:00:00 1997/12/08 14:00:00 50 0.44 33.56%0.2 291 1979/02/21 03:00:00 1979/02/24 02:00:00 72 0.43 33.68%0.2 292 1986/12/06 08:00:00 1986/12/08 08:00:00 49 0.43 33.80%0.2 293 1995/02/14 01:00:00 1995/02/16 00:00:00 48 0.43 33.91%0.2 294 2004/04/01 22:00:00 2004/04/03 03:00:00 30 0.43 34.03%0.2 295 2006/05/22 06:00:00 2006/05/23 12:00:00 31 0.43 34.14%0.2 296 1955/01/10 06:00:00 1955/01/11 15:00:00 34 0.42 34.26%0.2 297 1955/02/26 13:00:00 1955/03/01 01:00:00 61 0.42 34.38%0.2 298 1980/10/16 05:00:00 1980/10/17 11:00:00 31 0.42 34.49%0.2 299 1980/12/04 13:00:00 1980/12/08 17:00:00 101 0.42 34.61%0.19 300 2000/03/04 19:00:00 2000/03/09 09:00:00 111 0.42 34.72%0.19 301 1952/02/29 21:00:00 1952/03/02 15:00:00 43 0.41 34.84%0.19 302 1984/10/17 07:00:00 1984/10/18 12:00:00 30 0.41 34.95%0.19 303 1957/03/16 10:00:00 1957/03/17 17:00:00 32 0.4 35.07%0.19 304 1986/01/30 05:00:00 1986/02/02 00:00:00 68 0.4 35.19%0.19 305 1994/02/07 05:00:00 1994/02/09 07:00:00 51 0.4 35.30%0.19 306 1955/02/16 21:00:00 1955/02/18 17:00:00 45 0.39 35.42%0.19 307 1980/04/21 05:00:00 1980/04/24 09:00:00 77 0.39 35.53%0.19 308 2001/11/24 13:00:00 2001/11/26 03:00:00 39 0.39 35.65%0.19 309 1987/04/04 08:00:00 1987/04/05 21:00:00 38 0.38 35.76%0.19 310 2000/02/20 07:00:00 2000/02/25 01:00:00 115 0.38 35.88%0.19 311 1952/04/10 12:00:00 1952/04/12 03:00:00 40 0.37 36.00%0.19 312 1980/03/10 17:00:00 1980/03/11 21:00:00 29 0.37 36.11%0.19 313 1987/02/23 17:00:00 1987/02/26 17:00:00 73 0.37 36.23%0.19 314 1999/02/04 10:00:00 1999/02/06 06:00:00 45 0.37 36.34%0.19 315 2007/12/07 07:00:00 2007/12/09 20:00:00 62 0.37 36.46%0.18 316 1975/02/03 10:00:00 1975/02/05 11:00:00 50 0.36 36.57%0.18 317 2007/08/26 12:00:00 2007/08/27 16:00:00 29 0.36 36.69%0.18 318 1979/02/14 04:00:00 1979/02/15 10:00:00 31 0.35 36.81%0.18 319 2000/04/17 18:00:00 2000/04/19 10:00:00 41 0.35 36.92%0.18 320 2000/10/26 11:00:00 2000/10/28 14:00:00 52 0.35 37.04%0.18 321 2006/02/18 01:00:00 2006/02/20 15:00:00 63 0.35 37.15%0.18 7/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 322 1951/11/22 23:00:00 1951/11/24 10:00:00 36 0.34 37.27%0.18 323 1954/12/10 00:00:00 1954/12/11 11:00:00 36 0.34 37.38%0.18 324 1961/11/20 17:00:00 1961/11/21 23:00:00 31 0.34 37.50%0.18 325 1963/04/17 07:00:00 1963/04/18 15:00:00 33 0.34 37.62%0.18 326 1974/03/02 11:00:00 1974/03/04 01:00:00 39 0.34 37.73%0.18 327 1974/12/28 09:00:00 1974/12/30 14:00:00 54 0.34 37.85%0.18 328 1985/12/02 13:00:00 1985/12/04 04:00:00 40 0.34 37.96%0.18 329 2006/03/28 22:00:00 2006/03/30 12:00:00 39 0.34 38.08%0.18 330 1960/11/05 21:00:00 1960/11/07 16:00:00 44 0.33 38.19%0.18 331 1961/11/25 04:00:00 1961/11/27 02:00:00 47 0.33 38.31%0.18 332 1962/02/15 20:00:00 1962/02/17 18:00:00 47 0.33 38.43%0.18 333 1966/01/30 08:00:00 1966/01/31 22:00:00 39 0.33 38.54%0.17 334 1968/02/13 06:00:00 1968/02/14 14:00:00 33 0.33 38.66%0.17 335 1972/11/11 05:00:00 1972/11/12 15:00:00 35 0.33 38.77%0.17 336 1980/01/17 21:00:00 1980/01/20 01:00:00 53 0.33 38.89%0.17 337 1998/05/12 15:00:00 1998/05/14 04:00:00 38 0.33 39.00%0.17 338 2004/02/03 00:00:00 2004/02/04 18:00:00 43 0.33 39.12%0.17 339 1953/03/01 04:00:00 1953/03/03 05:00:00 50 0.32 39.24%0.17 340 1958/09/24 00:00:00 1958/09/25 10:00:00 35 0.32 39.35%0.17 341 1982/09/26 05:00:00 1982/09/27 21:00:00 41 0.32 39.47%0.17 342 1983/02/02 17:00:00 1983/02/04 11:00:00 43 0.32 39.58%0.17 343 1990/04/16 23:00:00 1990/04/18 18:00:00 44 0.32 39.70%0.17 344 1993/02/23 19:00:00 1993/02/25 06:00:00 36 0.32 39.81%0.17 345 1995/03/21 13:00:00 1995/03/24 18:00:00 78 0.32 39.93%0.17 346 2006/12/10 01:00:00 2006/12/11 15:00:00 39 0.32 40.05%0.17 347 1952/01/25 06:00:00 1952/01/26 13:00:00 32 0.31 40.16%0.17 348 1954/03/30 05:00:00 1954/03/31 10:00:00 30 0.31 40.28%0.17 349 1955/04/22 05:00:00 1955/04/23 13:00:00 33 0.31 40.39%0.17 350 1962/03/06 09:00:00 1962/03/08 01:00:00 41 0.31 40.51%0.17 351 1963/09/04 10:00:00 1963/09/05 16:00:00 31 0.31 40.63%0.17 352 1973/02/28 02:00:00 1973/03/01 12:00:00 35 0.31 40.74%0.17 353 1973/11/17 06:00:00 1973/11/20 01:00:00 68 0.31 40.86%0.16 354 1977/12/18 02:00:00 1977/12/19 11:00:00 34 0.31 40.97%0.16 355 1996/02/20 09:00:00 1996/02/23 01:00:00 65 0.31 41.09%0.16 356 1996/12/27 18:00:00 1996/12/29 10:00:00 41 0.31 41.20%0.16 357 1998/01/29 17:00:00 1998/01/30 22:00:00 30 0.31 41.32%0.16 358 2007/12/19 00:00:00 2007/12/20 15:00:00 40 0.31 41.44%0.16 359 1952/11/23 01:00:00 1952/11/24 11:00:00 35 0.3 41.55%0.16 360 1953/11/14 18:00:00 1953/11/16 08:00:00 39 0.3 41.67%0.16 361 1955/11/14 08:00:00 1955/11/15 12:00:00 29 0.3 41.78%0.16 362 1957/06/10 05:00:00 1957/06/11 08:00:00 28 0.3 41.90%0.16 363 1959/02/08 05:00:00 1959/02/10 00:00:00 44 0.3 42.01%0.16 364 1964/03/23 01:00:00 1964/03/25 00:00:00 48 0.3 42.13%0.16 365 1965/03/12 17:00:00 1965/03/14 17:00:00 49 0.3 42.25%0.16 366 1967/03/31 13:00:00 1967/04/01 15:00:00 27 0.3 42.36%0.16 367 1967/04/18 22:00:00 1967/04/23 03:00:00 102 0.3 42.48%0.16 368 1968/04/01 21:00:00 1968/04/03 03:00:00 31 0.3 42.59%0.16 8/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 369 1973/02/15 12:00:00 1973/02/16 19:00:00 32 0.3 42.71%0.16 370 1975/02/09 08:00:00 1975/02/11 03:00:00 44 0.3 42.82%0.16 371 1975/11/27 19:00:00 1975/11/29 20:00:00 50 0.3 42.94%0.16 372 1978/01/19 08:00:00 1978/01/20 14:00:00 31 0.3 43.06%0.16 373 1982/12/29 21:00:00 1982/12/31 00:00:00 28 0.3 43.17%0.16 374 1983/04/12 09:00:00 1983/04/14 09:00:00 49 0.3 43.29%0.16 375 1984/12/16 04:00:00 1984/12/17 08:00:00 29 0.3 43.40%0.16 376 1990/06/09 16:00:00 1990/06/11 17:00:00 50 0.3 43.52%0.15 377 1995/01/24 01:00:00 1995/01/27 13:00:00 85 0.3 43.63%0.15 378 1996/02/25 11:00:00 1996/02/29 01:00:00 87 0.3 43.75%0.15 379 1996/03/12 19:00:00 1996/03/14 15:00:00 45 0.3 43.87%0.15 380 1998/03/25 17:00:00 1998/04/03 01:00:00 201 0.3 43.98%0.15 381 2005/03/22 22:00:00 2005/03/24 01:00:00 28 0.3 44.10%0.15 382 2008/02/03 09:00:00 2008/02/04 21:00:00 37 0.3 44.21%0.15 383 1953/02/23 12:00:00 1953/02/24 20:00:00 33 0.29 44.33%0.15 384 1953/04/27 22:00:00 1953/04/30 11:00:00 62 0.29 44.44%0.15 385 1957/01/05 10:00:00 1957/01/06 13:00:00 28 0.29 44.56%0.15 386 1957/10/31 01:00:00 1957/11/01 07:00:00 31 0.29 44.68%0.15 387 1958/03/27 14:00:00 1958/03/28 17:00:00 28 0.29 44.79%0.15 388 1960/02/09 00:00:00 1960/02/11 09:00:00 58 0.29 44.91%0.15 389 1963/04/26 03:00:00 1963/04/27 08:00:00 30 0.29 45.02%0.15 390 1965/01/24 08:00:00 1965/01/25 09:00:00 26 0.29 45.14%0.15 391 1966/10/10 14:00:00 1966/10/11 17:00:00 28 0.29 45.25%0.15 392 1978/11/21 18:00:00 1978/11/23 03:00:00 34 0.29 45.37%0.15 393 1978/11/24 11:00:00 1978/11/25 15:00:00 29 0.29 45.49%0.15 394 1982/03/25 23:00:00 1982/03/27 07:00:00 33 0.29 45.60%0.15 395 1983/11/20 10:00:00 1983/11/21 19:00:00 34 0.29 45.72%0.15 396 2000/02/11 18:00:00 2000/02/15 09:00:00 88 0.29 45.83%0.15 397 2005/10/16 20:00:00 2005/10/19 09:00:00 62 0.29 45.95%0.15 398 1955/03/11 01:00:00 1955/03/12 05:00:00 29 0.28 46.06%0.15 399 1968/11/14 20:00:00 1968/11/16 01:00:00 30 0.28 46.18%0.15 400 1969/04/05 22:00:00 1969/04/07 01:00:00 28 0.28 46.30%0.15 401 1971/10/16 09:00:00 1971/10/18 06:00:00 46 0.28 46.41%0.15 402 1975/12/20 16:00:00 1975/12/21 20:00:00 29 0.28 46.53%0.14 403 1976/04/15 17:00:00 1976/04/17 06:00:00 38 0.28 46.64%0.14 404 1982/01/28 19:00:00 1982/01/30 02:00:00 32 0.28 46.76%0.14 405 1982/11/19 02:00:00 1982/11/21 04:00:00 51 0.28 46.88%0.14 406 1987/03/22 03:00:00 1987/03/23 04:00:00 26 0.28 46.99%0.14 407 1987/10/31 08:00:00 1987/11/02 23:00:00 64 0.28 47.11%0.14 408 1990/02/04 13:00:00 1990/02/05 15:00:00 27 0.28 47.22%0.14 409 1998/12/04 03:00:00 1998/12/07 09:00:00 79 0.28 47.34%0.14 410 2005/12/31 18:00:00 2006/01/03 19:00:00 74 0.28 47.45%0.14 411 1951/12/19 10:00:00 1951/12/20 11:00:00 26 0.27 47.57%0.14 412 1957/02/23 08:00:00 1957/02/24 11:00:00 28 0.27 47.69%0.14 413 1969/01/14 02:00:00 1969/01/15 11:00:00 34 0.27 47.80%0.14 414 1974/03/27 08:00:00 1974/03/28 10:00:00 27 0.27 47.92%0.14 415 1975/04/17 06:00:00 1975/04/18 10:00:00 29 0.27 48.03%0.14 9/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 416 1976/04/13 02:00:00 1976/04/14 12:00:00 35 0.27 48.15%0.14 417 1984/04/27 23:00:00 1984/04/29 00:00:00 26 0.27 48.26%0.14 418 1987/02/13 22:00:00 1987/02/16 02:00:00 53 0.27 48.38%0.14 419 1988/01/05 16:00:00 1988/01/06 17:00:00 26 0.27 48.50%0.14 420 1988/08/24 05:00:00 1988/08/25 14:00:00 34 0.27 48.61%0.14 421 1991/10/27 02:00:00 1991/10/28 09:00:00 32 0.27 48.73%0.14 422 1996/12/06 01:00:00 1996/12/07 07:00:00 31 0.27 48.84%0.14 423 1998/12/01 18:00:00 1998/12/02 19:00:00 26 0.27 48.96%0.14 424 2004/03/02 00:00:00 2004/03/03 03:00:00 28 0.27 49.07%0.14 425 2007/02/28 07:00:00 2007/03/01 18:00:00 36 0.27 49.19%0.14 426 1952/12/28 10:00:00 1952/12/29 11:00:00 26 0.26 49.31%0.14 427 1957/12/15 11:00:00 1957/12/18 06:00:00 68 0.26 49.42%0.14 428 1958/03/11 03:00:00 1958/03/12 21:00:00 43 0.26 49.54%0.14 429 1960/01/25 21:00:00 1960/01/26 22:00:00 26 0.26 49.65%0.14 430 1960/11/13 00:00:00 1960/11/14 00:00:00 25 0.26 49.77%0.14 431 1964/11/09 15:00:00 1964/11/12 10:00:00 68 0.26 49.88%0.14 432 1969/11/10 04:00:00 1969/11/11 04:00:00 25 0.26 50.00%0.13 433 1971/02/23 05:00:00 1971/02/24 04:00:00 24 0.26 50.12%0.13 434 1978/11/10 18:00:00 1978/11/16 04:00:00 131 0.26 50.23%0.13 435 1983/02/06 14:00:00 1983/02/09 07:00:00 66 0.26 50.35%0.13 436 1984/12/10 22:00:00 1984/12/13 15:00:00 66 0.26 50.46%0.13 437 1985/01/07 13:00:00 1985/01/09 01:00:00 37 0.26 50.58%0.13 438 1987/11/04 21:00:00 1987/11/06 09:00:00 37 0.26 50.69%0.13 439 1993/12/11 19:00:00 1993/12/13 01:00:00 31 0.26 50.81%0.13 440 1994/11/10 13:00:00 1994/11/11 11:00:00 23 0.26 50.93%0.13 441 1996/01/31 06:00:00 1996/02/02 12:00:00 55 0.26 51.04%0.13 442 2001/03/06 15:00:00 2001/03/08 13:00:00 47 0.26 51.16%0.13 443 2006/03/20 05:00:00 2006/03/22 04:00:00 48 0.26 51.27%0.13 444 1951/12/05 02:00:00 1951/12/06 04:00:00 27 0.25 51.39%0.13 445 1953/10/22 09:00:00 1953/10/23 06:00:00 22 0.25 51.50%0.13 446 1954/01/24 13:00:00 1954/01/25 23:00:00 35 0.25 51.62%0.13 447 1959/01/06 09:00:00 1959/01/07 08:00:00 24 0.25 51.74%0.13 448 1960/11/03 21:00:00 1960/11/04 19:00:00 23 0.25 51.85%0.13 449 1965/01/01 00:00:00 1965/01/01 20:00:00 21 0.25 51.97%0.13 450 1970/01/16 19:00:00 1970/01/17 17:00:00 23 0.25 52.08%0.13 451 1976/11/12 03:00:00 1976/11/13 04:00:00 26 0.25 52.20%0.13 452 1977/05/24 07:00:00 1977/05/25 07:00:00 25 0.25 52.31%0.13 453 1978/01/30 13:00:00 1978/01/31 21:00:00 33 0.25 52.43%0.13 454 1980/03/21 12:00:00 1980/03/22 21:00:00 34 0.25 52.55%0.13 455 1982/01/10 22:00:00 1982/01/12 03:00:00 30 0.25 52.66%0.13 456 1982/09/15 09:00:00 1982/09/18 09:00:00 73 0.25 52.78%0.13 457 1983/12/09 17:00:00 1983/12/10 16:00:00 24 0.25 52.89%0.13 458 1984/11/13 09:00:00 1984/11/14 08:00:00 24 0.25 53.01%0.13 459 1985/02/02 05:00:00 1985/02/04 16:00:00 60 0.25 53.13%0.13 460 1989/02/02 09:00:00 1989/02/05 15:00:00 79 0.25 53.24%0.13 461 1989/05/14 09:00:00 1989/05/16 05:00:00 45 0.25 53.36%0.13 462 1990/01/31 03:00:00 1990/02/01 00:00:00 22 0.25 53.47%0.13 10/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 463 1991/03/15 16:00:00 1991/03/16 13:00:00 22 0.25 53.59%0.13 464 1992/03/27 06:00:00 1992/03/28 05:00:00 24 0.25 53.70%0.13 465 1997/01/22 04:00:00 1997/01/24 17:00:00 62 0.25 53.82%0.13 466 1998/04/11 14:00:00 1998/04/12 18:00:00 29 0.25 53.94%0.12 467 2007/02/11 14:00:00 2007/02/14 14:00:00 73 0.25 54.05%0.12 468 1955/11/17 08:00:00 1955/11/18 15:00:00 32 0.24 54.17%0.12 469 1956/01/31 12:00:00 1956/02/01 08:00:00 21 0.24 54.28%0.12 470 1957/05/19 10:00:00 1957/05/22 05:00:00 68 0.24 54.40%0.12 471 1957/10/21 06:00:00 1957/10/22 03:00:00 22 0.24 54.51%0.12 472 1963/03/28 13:00:00 1963/03/29 10:00:00 22 0.24 54.63%0.12 473 1973/02/06 05:00:00 1973/02/08 04:00:00 48 0.24 54.75%0.12 474 1981/04/18 23:00:00 1981/04/20 03:00:00 29 0.24 54.86%0.12 475 1985/01/28 17:00:00 1985/01/29 22:00:00 30 0.24 54.98%0.12 476 1989/02/09 17:00:00 1989/02/11 03:00:00 35 0.24 55.09%0.12 477 1989/03/02 12:00:00 1989/03/03 16:00:00 29 0.24 55.21%0.12 478 1992/03/08 02:00:00 1992/03/09 08:00:00 31 0.24 55.32%0.12 479 1994/12/25 02:00:00 1994/12/26 02:00:00 25 0.24 55.44%0.12 480 1997/01/02 07:00:00 1997/01/04 08:00:00 50 0.24 55.56%0.12 481 1997/12/18 15:00:00 1997/12/19 17:00:00 27 0.24 55.67%0.12 482 2001/03/10 09:00:00 2001/03/11 17:00:00 33 0.24 55.79%0.12 483 2004/11/21 09:00:00 2004/11/22 05:00:00 21 0.24 55.90%0.12 484 1956/02/23 17:00:00 1956/02/25 08:00:00 40 0.23 56.02%0.12 485 1963/02/14 12:00:00 1963/02/15 08:00:00 21 0.23 56.13%0.12 486 1964/10/15 14:00:00 1964/10/16 09:00:00 20 0.23 56.25%0.12 487 1971/12/04 04:00:00 1971/12/05 00:00:00 21 0.23 56.37%0.12 488 1972/10/19 04:00:00 1972/10/21 01:00:00 46 0.23 56.48%0.12 489 1976/07/27 02:00:00 1976/07/27 21:00:00 20 0.23 56.60%0.12 490 1979/01/09 13:00:00 1979/01/10 10:00:00 22 0.23 56.71%0.12 491 1979/12/21 08:00:00 1979/12/22 09:00:00 26 0.23 56.83%0.12 492 1984/12/03 10:00:00 1984/12/04 07:00:00 22 0.23 56.94%0.12 493 1996/01/21 21:00:00 1996/01/23 04:00:00 32 0.23 57.06%0.12 494 1998/01/09 18:00:00 1998/01/11 13:00:00 44 0.23 57.18%0.12 495 2001/02/20 15:00:00 2001/02/21 17:00:00 27 0.23 57.29%0.12 496 1956/12/06 05:00:00 1956/12/07 01:00:00 21 0.22 57.41%0.12 497 1957/04/18 04:00:00 1957/04/19 00:00:00 21 0.22 57.52%0.12 498 1975/03/22 11:00:00 1975/03/23 06:00:00 20 0.22 57.64%0.12 499 1978/04/15 22:00:00 1978/04/16 17:00:00 20 0.22 57.75%0.12 500 1987/03/05 22:00:00 1987/03/07 10:00:00 37 0.22 57.87%0.12 501 1987/03/15 11:00:00 1987/03/16 06:00:00 20 0.22 57.99%0.12 502 1990/01/13 13:00:00 1990/01/15 07:00:00 43 0.22 58.10%0.12 503 1992/12/18 04:00:00 1992/12/18 23:00:00 20 0.22 58.22%0.12 504 1996/03/04 20:00:00 1996/03/05 19:00:00 24 0.22 58.33%0.12 505 1999/06/04 02:00:00 1999/06/04 20:00:00 19 0.22 58.45%0.12 506 2003/11/12 08:00:00 2003/11/13 17:00:00 34 0.22 58.56%0.12 507 2006/12/27 10:00:00 2006/12/28 05:00:00 20 0.22 58.68%0.11 508 2007/02/19 05:00:00 2007/02/20 05:00:00 25 0.22 58.80%0.11 509 1954/01/12 12:00:00 1954/01/13 16:00:00 29 0.21 58.91%0.11 11/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 510 1967/11/26 21:00:00 1967/11/27 15:00:00 19 0.21 59.03%0.11 511 1972/12/07 08:00:00 1972/12/09 08:00:00 49 0.21 59.14%0.11 512 1977/03/16 15:00:00 1977/03/23 07:00:00 161 0.21 59.26%0.11 513 1978/04/07 04:00:00 1978/04/09 12:00:00 57 0.21 59.38%0.11 514 1985/10/22 02:00:00 1985/10/22 20:00:00 19 0.21 59.49%0.11 515 1992/02/10 03:00:00 1992/02/11 02:00:00 24 0.21 59.61%0.11 516 1993/01/10 14:00:00 1993/01/11 08:00:00 19 0.21 59.72%0.11 517 1995/01/21 05:00:00 1995/01/21 23:00:00 19 0.21 59.84%0.11 518 1995/06/16 00:00:00 1995/06/17 14:00:00 39 0.21 59.95%0.11 519 1995/12/23 12:00:00 1995/12/24 06:00:00 19 0.21 60.07%0.11 520 2001/11/29 15:00:00 2001/11/30 15:00:00 25 0.21 60.19%0.11 521 2005/09/20 07:00:00 2005/09/21 01:00:00 19 0.21 60.30%0.11 522 1951/10/07 09:00:00 1951/10/09 14:00:00 54 0.2 60.42%0.11 523 1958/05/11 12:00:00 1958/05/12 08:00:00 21 0.2 60.53%0.11 524 1962/02/25 00:00:00 1962/02/27 01:00:00 50 0.2 60.65%0.11 525 1969/01/19 01:00:00 1969/01/22 17:00:00 89 0.2 60.76%0.11 526 1982/03/28 22:00:00 1982/03/29 21:00:00 24 0.2 60.88%0.11 527 1985/03/27 09:00:00 1985/03/29 06:00:00 46 0.2 61.00%0.11 528 1985/09/18 14:00:00 1985/09/19 08:00:00 19 0.2 61.11%0.11 529 1995/12/13 05:00:00 1995/12/14 04:00:00 24 0.2 61.23%0.11 530 1998/03/13 19:00:00 1998/03/15 14:00:00 44 0.2 61.34%0.11 531 1999/06/02 04:00:00 1999/06/02 23:00:00 20 0.2 61.46%0.11 532 2002/03/17 23:00:00 2002/03/18 21:00:00 23 0.2 61.57%0.11 533 2007/02/22 23:00:00 2007/02/23 17:00:00 19 0.2 61.69%0.11 534 1951/10/11 02:00:00 1951/10/12 09:00:00 32 0.19 61.81%0.11 535 1957/01/10 02:00:00 1957/01/11 02:00:00 25 0.19 61.92%0.11 536 1958/02/13 05:00:00 1958/02/14 00:00:00 20 0.19 62.04%0.11 537 1962/01/13 03:00:00 1962/01/13 18:00:00 16 0.19 62.15%0.11 538 1965/12/22 03:00:00 1965/12/23 02:00:00 24 0.19 62.27%0.11 539 1969/03/13 04:00:00 1969/03/13 22:00:00 19 0.19 62.38%0.11 540 1969/12/09 02:00:00 1969/12/09 19:00:00 18 0.19 62.50%0.11 541 1971/01/12 22:00:00 1971/01/13 17:00:00 20 0.19 62.62%0.11 542 1973/02/03 23:00:00 1973/02/04 15:00:00 17 0.19 62.73%0.11 543 1975/12/12 18:00:00 1975/12/13 13:00:00 20 0.19 62.85%0.11 544 1977/02/22 04:00:00 1977/02/22 23:00:00 20 0.19 62.96%0.11 545 1977/02/24 17:00:00 1977/02/25 17:00:00 25 0.19 63.08%0.11 546 1983/08/18 10:00:00 1983/08/19 05:00:00 20 0.19 63.19%0.11 547 1987/03/25 00:00:00 1987/03/26 15:00:00 40 0.19 63.31%0.11 548 1987/07/17 11:00:00 1987/07/18 06:00:00 20 0.19 63.43%0.11 549 1990/01/02 09:00:00 1990/01/03 03:00:00 19 0.19 63.54%0.11 550 1993/12/14 19:00:00 1993/12/15 17:00:00 23 0.19 63.66%0.11 551 1996/02/03 14:00:00 1996/02/04 07:00:00 18 0.19 63.77%0.11 552 2001/12/03 20:00:00 2001/12/05 13:00:00 42 0.19 63.89%0.11 553 2005/03/04 12:00:00 2005/03/05 20:00:00 33 0.19 64.00%0.11 554 2006/12/16 23:00:00 2006/12/17 22:00:00 24 0.19 64.12%0.11 555 2007/04/23 01:00:00 2007/04/23 18:00:00 18 0.19 64.24%0.11 556 1951/10/14 12:00:00 1951/10/16 03:00:00 40 0.18 64.35%0.1 12/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 557 1952/12/17 09:00:00 1952/12/18 08:00:00 24 0.18 64.47%0.1 558 1954/12/04 01:00:00 1954/12/04 17:00:00 17 0.18 64.58%0.1 559 1955/01/31 01:00:00 1955/02/01 00:00:00 24 0.18 64.70%0.1 560 1955/04/26 13:00:00 1955/04/27 05:00:00 17 0.18 64.81%0.1 561 1961/03/28 05:00:00 1961/03/29 07:00:00 27 0.18 64.93%0.1 562 1964/03/02 11:00:00 1964/03/03 07:00:00 21 0.18 65.05%0.1 563 1974/01/01 07:00:00 1974/01/02 00:00:00 18 0.18 65.16%0.1 564 1975/03/14 04:00:00 1975/03/14 20:00:00 17 0.18 65.28%0.1 565 1977/01/29 04:00:00 1977/01/29 19:00:00 16 0.18 65.39%0.1 566 1978/03/22 17:00:00 1978/03/24 08:00:00 40 0.18 65.51%0.1 567 1980/04/28 18:00:00 1980/04/30 03:00:00 34 0.18 65.63%0.1 568 1980/05/08 13:00:00 1980/05/11 06:00:00 66 0.18 65.74%0.1 569 1981/04/02 07:00:00 1981/04/03 04:00:00 22 0.18 65.86%0.1 570 1985/10/06 09:00:00 1985/10/08 04:00:00 44 0.18 65.97%0.1 571 1987/02/05 14:00:00 1987/02/06 05:00:00 16 0.18 66.09%0.1 572 1987/12/19 21:00:00 1987/12/20 13:00:00 17 0.18 66.20%0.1 573 1987/12/29 14:00:00 1987/12/30 23:00:00 34 0.18 66.32%0.1 574 1988/11/10 14:00:00 1988/11/12 03:00:00 38 0.18 66.44%0.1 575 1988/12/28 01:00:00 1988/12/29 05:00:00 29 0.18 66.55%0.1 576 1989/01/07 18:00:00 1989/01/08 10:00:00 17 0.18 66.67%0.1 577 1989/01/23 22:00:00 1989/01/24 13:00:00 16 0.18 66.78%0.1 578 1991/12/18 06:00:00 1991/12/20 05:00:00 48 0.18 66.90%0.1 579 1995/01/16 13:00:00 1995/01/17 12:00:00 24 0.18 67.01%0.1 580 1998/11/28 09:00:00 1998/11/29 18:00:00 34 0.18 67.13%0.1 581 1999/09/18 19:00:00 1999/09/19 10:00:00 16 0.18 67.25%0.1 582 2000/11/10 10:00:00 2000/11/12 05:00:00 44 0.18 67.36%0.1 583 2000/11/30 11:00:00 2000/12/01 03:00:00 17 0.18 67.48%0.1 584 2006/03/03 17:00:00 2006/03/04 09:00:00 17 0.18 67.59%0.1 585 1951/11/20 04:00:00 1951/11/21 15:00:00 36 0.17 67.71%0.1 586 1952/12/06 06:00:00 1952/12/06 23:00:00 18 0.17 67.82%0.1 587 1953/01/06 20:00:00 1953/01/08 17:00:00 46 0.17 67.94%0.1 588 1953/04/20 13:00:00 1953/04/22 07:00:00 43 0.17 68.06%0.1 589 1957/11/14 19:00:00 1957/11/17 10:00:00 64 0.17 68.17%0.1 590 1959/10/01 05:00:00 1959/10/01 23:00:00 19 0.17 68.29%0.1 591 1960/03/28 04:00:00 1960/03/28 22:00:00 19 0.17 68.40%0.1 592 1962/03/23 01:00:00 1962/03/23 17:00:00 17 0.17 68.52%0.1 593 1962/05/14 20:00:00 1962/05/15 17:00:00 22 0.17 68.63%0.1 594 1965/09/16 20:00:00 1965/09/18 02:00:00 31 0.17 68.75%0.1 595 1974/05/19 11:00:00 1974/05/20 02:00:00 16 0.17 68.87%0.1 596 1977/07/14 11:00:00 1977/07/16 08:00:00 46 0.17 68.98%0.1 597 1977/07/22 14:00:00 1977/07/23 05:00:00 16 0.17 69.10%0.1 598 1977/12/23 06:00:00 1977/12/23 21:00:00 16 0.17 69.21%0.1 599 1978/04/02 21:00:00 1978/04/03 12:00:00 16 0.17 69.33%0.1 600 1979/11/12 14:00:00 1979/11/13 05:00:00 16 0.17 69.44%0.1 601 1979/12/25 12:00:00 1979/12/26 03:00:00 16 0.17 69.56%0.1 602 1982/04/04 14:00:00 1982/04/05 05:00:00 16 0.17 69.68%0.1 603 1983/03/28 10:00:00 1983/03/29 01:00:00 16 0.17 69.79%0.1 13/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 604 1983/10/07 11:00:00 1983/10/08 21:00:00 35 0.17 69.91%0.1 605 1983/11/18 02:00:00 1983/11/18 17:00:00 16 0.17 70.02%0.1 606 1983/12/15 16:00:00 1983/12/16 07:00:00 16 0.17 70.14%0.1 607 1983/12/19 17:00:00 1983/12/20 08:00:00 16 0.17 70.25%0.1 608 1984/11/16 17:00:00 1984/11/17 08:00:00 16 0.17 70.37%0.1 609 1987/11/18 00:00:00 1987/11/18 15:00:00 16 0.17 70.49%0.1 610 1987/12/11 08:00:00 1987/12/11 23:00:00 16 0.17 70.60%0.1 611 1988/04/18 07:00:00 1988/04/18 22:00:00 16 0.17 70.72%0.1 612 1989/12/01 13:00:00 1989/12/02 03:00:00 15 0.17 70.83%0.1 613 1991/03/13 22:00:00 1991/03/14 13:00:00 16 0.17 70.95%0.1 614 1992/03/29 15:00:00 1992/03/30 06:00:00 16 0.17 71.06%0.09 615 1992/03/31 17:00:00 1992/04/01 08:00:00 16 0.17 71.18%0.09 616 1993/02/26 21:00:00 1993/02/27 14:00:00 18 0.17 71.30%0.09 617 1996/01/16 22:00:00 1996/01/17 13:00:00 16 0.17 71.41%0.09 618 1997/02/10 23:00:00 1997/02/11 15:00:00 17 0.17 71.53%0.09 619 2007/10/13 09:00:00 2007/10/14 02:00:00 18 0.17 71.64%0.09 620 2008/01/23 22:00:00 2008/01/25 02:00:00 29 0.17 71.76%0.09 621 1953/11/05 11:00:00 1953/11/06 11:00:00 25 0.16 71.88%0.09 622 1955/12/04 08:00:00 1955/12/05 02:00:00 19 0.16 71.99%0.09 623 1960/04/23 10:00:00 1960/04/24 17:00:00 32 0.16 72.11%0.09 624 1964/02/29 07:00:00 1964/02/29 22:00:00 16 0.16 72.22%0.09 625 1967/12/08 02:00:00 1967/12/09 00:00:00 23 0.16 72.34%0.09 626 1971/03/13 10:00:00 1971/03/14 00:00:00 15 0.16 72.45%0.09 627 1975/04/25 10:00:00 1975/04/26 00:00:00 15 0.16 72.57%0.09 628 1977/05/12 12:00:00 1977/05/13 02:00:00 15 0.16 72.69%0.09 629 1978/12/01 21:00:00 1978/12/02 11:00:00 15 0.16 72.80%0.09 630 1980/05/02 13:00:00 1980/05/03 03:00:00 15 0.16 72.92%0.09 631 1981/03/10 20:00:00 1981/03/11 10:00:00 15 0.16 73.03%0.09 632 1981/03/14 15:00:00 1981/03/15 05:00:00 15 0.16 73.15%0.09 633 1982/02/17 04:00:00 1982/02/17 18:00:00 15 0.16 73.26%0.09 634 1983/01/17 08:00:00 1983/01/20 01:00:00 66 0.16 73.38%0.09 635 1983/05/06 11:00:00 1983/05/07 01:00:00 15 0.16 73.50%0.09 636 1984/01/15 19:00:00 1984/01/17 00:00:00 30 0.16 73.61%0.09 637 1986/02/23 09:00:00 1986/02/23 23:00:00 15 0.16 73.73%0.09 638 1986/03/01 10:00:00 1986/03/02 00:00:00 15 0.16 73.84%0.09 639 1987/10/28 03:00:00 1987/10/28 17:00:00 15 0.16 73.96%0.09 640 1994/04/24 07:00:00 1994/04/28 00:00:00 90 0.16 74.07%0.09 641 1996/04/18 04:00:00 1996/04/18 20:00:00 17 0.16 74.19%0.09 642 1996/10/01 13:00:00 1996/10/03 23:00:00 59 0.16 74.31%0.09 643 1998/12/19 21:00:00 1998/12/20 11:00:00 15 0.16 74.42%0.09 644 1999/04/06 23:00:00 1999/04/09 05:00:00 55 0.16 74.54%0.09 645 2002/02/17 20:00:00 2002/02/18 12:00:00 17 0.16 74.65%0.09 646 1952/04/08 01:00:00 1952/04/08 20:00:00 20 0.15 74.77%0.09 647 1953/12/04 12:00:00 1953/12/05 02:00:00 15 0.15 74.88%0.09 648 1955/01/02 01:00:00 1955/01/02 16:00:00 16 0.15 75.00%0.09 649 1956/05/09 13:00:00 1956/05/10 15:00:00 27 0.15 75.12%0.09 650 1957/01/20 20:00:00 1957/01/21 10:00:00 15 0.15 75.23%0.09 14/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 651 1960/03/13 07:00:00 1960/03/13 20:00:00 14 0.15 75.35%0.09 652 1960/12/03 05:00:00 1960/12/03 20:00:00 16 0.15 75.46%0.09 653 1962/05/27 14:00:00 1962/05/28 03:00:00 14 0.15 75.58%0.09 654 1963/10/16 12:00:00 1963/10/17 02:00:00 15 0.15 75.69%0.09 655 1965/04/13 02:00:00 1965/04/13 15:00:00 14 0.15 75.81%0.09 656 1969/03/09 05:00:00 1969/03/11 10:00:00 54 0.15 75.93%0.09 657 1969/04/03 08:00:00 1969/04/03 22:00:00 15 0.15 76.04%0.09 658 1970/01/10 03:00:00 1970/01/12 13:00:00 59 0.15 76.16%0.09 659 1971/04/26 07:00:00 1971/04/26 21:00:00 15 0.15 76.27%0.09 660 1971/12/07 04:00:00 1971/12/07 17:00:00 14 0.15 76.39%0.09 661 1971/12/13 08:00:00 1971/12/13 21:00:00 14 0.15 76.50%0.09 662 1973/03/26 09:00:00 1973/03/26 22:00:00 14 0.15 76.62%0.09 663 1973/12/01 21:00:00 1973/12/02 10:00:00 14 0.15 76.74%0.09 664 1976/04/04 06:00:00 1976/04/05 13:00:00 32 0.15 76.85%0.09 665 1977/07/20 12:00:00 1977/07/21 01:00:00 14 0.15 76.97%0.09 666 1977/07/27 15:00:00 1977/07/28 03:00:00 13 0.15 77.08%0.09 667 1977/09/10 00:00:00 1977/09/10 13:00:00 14 0.15 77.20%0.09 668 1980/04/01 18:00:00 1980/04/02 07:00:00 14 0.15 77.31%0.09 669 1981/01/11 09:00:00 1981/01/13 01:00:00 41 0.15 77.43%0.09 670 1981/05/01 14:00:00 1981/05/02 03:00:00 14 0.15 77.55%0.09 671 1985/02/20 22:00:00 1985/02/21 10:00:00 13 0.15 77.66%0.09 672 1987/11/14 04:00:00 1987/11/14 17:00:00 14 0.15 77.78%0.09 673 1993/11/23 02:00:00 1993/11/23 18:00:00 17 0.15 77.89%0.09 674 1999/03/15 13:00:00 1999/03/16 02:00:00 14 0.15 78.01%0.09 675 1999/04/01 18:00:00 1999/04/02 12:00:00 19 0.15 78.13%0.09 676 2004/12/08 07:00:00 2004/12/09 00:00:00 18 0.15 78.24%0.09 677 2006/12/22 13:00:00 2006/12/23 02:00:00 14 0.15 78.36%0.09 678 1957/11/02 12:00:00 1957/11/05 22:00:00 83 0.14 78.47%0.09 679 1963/10/18 04:00:00 1963/10/19 14:00:00 35 0.14 78.59%0.09 680 1963/11/06 17:00:00 1963/11/07 06:00:00 14 0.14 78.70%0.09 681 1964/02/15 10:00:00 1964/02/15 23:00:00 14 0.14 78.82%0.09 682 1965/03/07 01:00:00 1965/03/07 13:00:00 13 0.14 78.94%0.09 683 1980/03/18 19:00:00 1980/03/19 07:00:00 13 0.14 79.05%0.09 684 1981/04/26 20:00:00 1981/04/27 08:00:00 13 0.14 79.17%0.09 685 1982/04/11 22:00:00 1982/04/12 10:00:00 13 0.14 79.28%0.09 686 1995/05/01 15:00:00 1995/05/02 03:00:00 13 0.14 79.40%0.09 687 1996/02/12 16:00:00 1996/02/13 04:00:00 13 0.14 79.51%0.08 688 1998/05/06 20:00:00 1998/05/07 08:00:00 13 0.14 79.63%0.08 689 1999/01/31 13:00:00 1999/02/01 00:00:00 12 0.14 79.75%0.08 690 1999/03/11 15:00:00 1999/03/12 05:00:00 15 0.14 79.86%0.08 691 2000/09/23 02:00:00 2000/09/23 14:00:00 13 0.14 79.98%0.08 692 2001/11/12 20:00:00 2001/11/14 06:00:00 35 0.14 80.09%0.08 693 2001/12/20 20:00:00 2001/12/22 09:00:00 38 0.14 80.21%0.08 694 2003/05/03 20:00:00 2003/05/04 09:00:00 14 0.14 80.32%0.08 695 2004/02/18 19:00:00 2004/02/19 07:00:00 13 0.14 80.44%0.08 696 2004/03/26 11:00:00 2004/03/27 02:00:00 16 0.14 80.56%0.08 697 2004/04/17 16:00:00 2004/04/18 04:00:00 13 0.14 80.67%0.08 15/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 698 2006/03/07 03:00:00 2006/03/07 16:00:00 14 0.14 80.79%0.08 699 2006/04/14 16:00:00 2006/04/15 22:00:00 31 0.14 80.90%0.08 700 2008/02/14 17:00:00 2008/02/15 04:00:00 12 0.14 81.02%0.08 701 1951/12/02 04:00:00 1951/12/02 14:00:00 11 0.13 81.13%0.08 702 1953/11/20 09:00:00 1953/11/20 21:00:00 13 0.13 81.25%0.08 703 1955/11/21 13:00:00 1955/11/22 04:00:00 16 0.13 81.37%0.08 704 1955/12/07 02:00:00 1955/12/07 16:00:00 15 0.13 81.48%0.08 705 1956/04/27 05:00:00 1956/04/27 22:00:00 18 0.13 81.60%0.08 706 1957/10/11 13:00:00 1957/10/12 00:00:00 12 0.13 81.71%0.08 707 1958/11/11 08:00:00 1958/11/11 19:00:00 12 0.13 81.83%0.08 708 1960/03/23 12:00:00 1960/03/23 21:00:00 10 0.13 81.94%0.08 709 1963/12/10 02:00:00 1963/12/10 13:00:00 12 0.13 82.06%0.08 710 1964/03/13 02:00:00 1964/03/13 12:00:00 11 0.13 82.18%0.08 711 1966/01/20 02:00:00 1966/01/20 11:00:00 10 0.13 82.29%0.08 712 1967/03/29 09:00:00 1967/03/29 19:00:00 11 0.13 82.41%0.08 713 1968/01/28 02:00:00 1968/01/28 12:00:00 11 0.13 82.52%0.08 714 1970/04/17 01:00:00 1970/04/17 11:00:00 11 0.13 82.64%0.08 715 1970/04/27 13:00:00 1970/04/27 23:00:00 11 0.13 82.75%0.08 716 1971/05/07 22:00:00 1971/05/08 11:00:00 14 0.13 82.87%0.08 717 1972/01/09 11:00:00 1972/01/09 20:00:00 10 0.13 82.99%0.08 718 1973/01/10 03:00:00 1973/01/10 12:00:00 10 0.13 83.10%0.08 719 1976/05/07 03:00:00 1976/05/07 13:00:00 11 0.13 83.22%0.08 720 1976/06/01 11:00:00 1976/06/01 21:00:00 11 0.13 83.33%0.08 721 1976/06/10 12:00:00 1976/06/10 22:00:00 11 0.13 83.45%0.08 722 1976/06/30 19:00:00 1976/07/01 05:00:00 11 0.13 83.56%0.08 723 1976/11/27 13:00:00 1976/11/27 23:00:00 11 0.13 83.68%0.08 724 1977/01/26 03:00:00 1977/01/26 12:00:00 10 0.13 83.80%0.08 725 1977/09/05 09:00:00 1977/09/05 19:00:00 11 0.13 83.91%0.08 726 1977/10/05 21:00:00 1977/10/06 07:00:00 11 0.13 84.03%0.08 727 1978/04/25 19:00:00 1978/04/26 05:00:00 11 0.13 84.14%0.08 728 1978/09/16 14:00:00 1978/09/17 00:00:00 11 0.13 84.26%0.08 729 1979/01/25 17:00:00 1979/01/26 02:00:00 10 0.13 84.38%0.08 730 1979/05/07 13:00:00 1979/05/07 23:00:00 11 0.13 84.49%0.08 731 1979/08/19 17:00:00 1979/08/20 03:00:00 11 0.13 84.61%0.08 732 1979/10/05 01:00:00 1979/10/05 11:00:00 11 0.13 84.72%0.08 733 1979/11/05 01:00:00 1979/11/05 11:00:00 11 0.13 84.84%0.08 734 1980/01/07 10:00:00 1980/01/07 19:00:00 10 0.13 84.95%0.08 735 1981/10/11 09:00:00 1981/10/11 19:00:00 11 0.13 85.07%0.08 736 1981/11/16 15:00:00 1981/11/17 01:00:00 11 0.13 85.19%0.08 737 1981/12/21 04:00:00 1981/12/21 14:00:00 11 0.13 85.30%0.08 738 1982/05/06 16:00:00 1982/05/07 02:00:00 11 0.13 85.42%0.08 739 1982/06/17 15:00:00 1982/06/18 01:00:00 11 0.13 85.53%0.08 740 1982/10/26 09:00:00 1982/10/26 19:00:00 11 0.13 85.65%0.08 741 1983/01/05 11:00:00 1983/01/05 20:00:00 10 0.13 85.76%0.08 742 1983/08/06 07:00:00 1983/08/06 17:00:00 11 0.13 85.88%0.08 743 1984/01/04 18:00:00 1984/01/05 03:00:00 10 0.13 86.00%0.08 744 1984/02/10 07:00:00 1984/02/10 17:00:00 11 0.13 86.11%0.08 16/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 745 1984/07/15 17:00:00 1984/07/16 03:00:00 11 0.13 86.23%0.08 746 1984/11/08 09:00:00 1984/11/08 19:00:00 11 0.13 86.34%0.08 747 1985/04/21 20:00:00 1985/04/22 06:00:00 11 0.13 86.46%0.08 748 1986/04/01 11:00:00 1986/04/01 21:00:00 11 0.13 86.57%0.08 749 1986/11/05 15:00:00 1986/11/06 01:00:00 11 0.13 86.69%0.08 750 1987/01/28 10:00:00 1987/01/28 19:00:00 10 0.13 86.81%0.08 751 1987/02/03 15:00:00 1987/02/04 01:00:00 11 0.13 86.92%0.08 752 1987/08/14 12:00:00 1987/08/14 22:00:00 11 0.13 87.04%0.08 753 1987/10/23 09:00:00 1987/10/23 20:00:00 12 0.13 87.15%0.08 754 1988/03/01 00:00:00 1988/03/01 10:00:00 11 0.13 87.27%0.08 755 1988/05/29 09:00:00 1988/05/29 19:00:00 11 0.13 87.38%0.08 756 1989/01/05 21:00:00 1989/01/06 06:00:00 10 0.13 87.50%0.08 757 1989/06/04 09:00:00 1989/06/04 19:00:00 11 0.13 87.62%0.08 758 1989/11/26 13:00:00 1989/11/26 23:00:00 11 0.13 87.73%0.08 759 1990/01/22 13:00:00 1990/01/22 22:00:00 10 0.13 87.85%0.08 760 1990/05/13 19:00:00 1990/05/14 05:00:00 11 0.13 87.96%0.08 761 1990/08/15 10:00:00 1990/08/15 20:00:00 11 0.13 88.08%0.08 762 1990/12/20 10:00:00 1990/12/20 20:00:00 11 0.13 88.19%0.08 763 1991/01/04 00:00:00 1991/01/04 09:00:00 10 0.13 88.31%0.08 764 1991/03/11 05:00:00 1991/03/11 16:00:00 12 0.13 88.43%0.08 765 1991/07/31 14:00:00 1991/08/01 00:00:00 11 0.13 88.54%0.08 766 1991/12/09 13:00:00 1991/12/09 23:00:00 11 0.13 88.66%0.08 767 1992/05/06 02:00:00 1992/05/06 12:00:00 11 0.13 88.77%0.08 768 1992/05/17 20:00:00 1992/05/18 06:00:00 11 0.13 88.89%0.08 769 1992/12/04 06:00:00 1992/12/04 22:00:00 17 0.13 89.00%0.08 770 1994/02/20 14:00:00 1994/02/21 14:00:00 25 0.13 89.12%0.08 771 1997/04/03 20:00:00 1997/04/04 07:00:00 12 0.13 89.24%0.08 772 1998/01/03 20:00:00 1998/01/05 01:00:00 30 0.13 89.35%0.08 773 1998/04/15 19:00:00 1998/04/16 07:00:00 13 0.13 89.47%0.08 774 1999/01/20 17:00:00 1999/01/21 09:00:00 17 0.13 89.58%0.08 775 1999/02/09 22:00:00 1999/02/10 09:00:00 12 0.13 89.70%0.08 776 2001/01/08 19:00:00 2001/01/09 04:00:00 10 0.13 89.81%0.08 777 2001/04/21 11:00:00 2001/04/22 02:00:00 16 0.13 89.93%0.08 778 2001/12/14 20:00:00 2001/12/15 06:00:00 11 0.13 90.05%0.08 779 2002/12/29 20:00:00 2002/12/30 08:00:00 13 0.13 90.16%0.07 780 2003/11/16 03:00:00 2003/11/16 22:00:00 20 0.13 90.28%0.07 781 2005/03/19 00:00:00 2005/03/20 11:00:00 36 0.13 90.39%0.07 782 2006/11/27 13:00:00 2006/11/28 01:00:00 13 0.13 90.51%0.07 783 2007/09/22 13:00:00 2007/09/23 02:00:00 14 0.13 90.63%0.07 784 1968/12/20 13:00:00 1968/12/20 23:00:00 11 0.12 90.74%0.07 785 1975/02/14 06:00:00 1975/02/14 17:00:00 12 0.12 90.86%0.07 786 1993/01/02 10:00:00 1993/01/03 00:00:00 15 0.12 90.97%0.07 787 1994/11/16 12:00:00 1994/11/16 20:00:00 9 0.12 91.09%0.07 788 2005/12/03 03:00:00 2005/12/03 11:00:00 9 0.12 91.20%0.07 789 1965/07/30 00:00:00 1965/07/30 09:00:00 10 0.11 91.32%0.07 790 2002/04/26 12:00:00 2002/04/27 00:00:00 13 0.11 91.44%0.07 791 2003/03/22 20:00:00 2003/03/23 06:00:00 11 0.11 91.55%0.07 17/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 792 1963/04/08 08:00:00 1963/04/08 19:00:00 12 0.1 91.67%0.07 793 1963/06/11 16:00:00 1963/06/12 00:00:00 9 0.1 91.78%0.07 794 1966/02/25 03:00:00 1966/02/25 15:00:00 13 0.1 91.90%0.07 795 1966/03/02 10:00:00 1966/03/02 18:00:00 9 0.09 92.01%0.07 796 1969/11/15 21:00:00 1969/11/16 06:00:00 10 0.09 92.13%0.07 797 2001/12/30 20:00:00 2001/12/31 04:00:00 9 0.09 92.25%0.07 798 2002/04/24 16:00:00 2002/04/24 23:00:00 8 0.09 92.36%0.07 799 2003/11/01 11:00:00 2003/11/01 19:00:00 9 0.09 92.48%0.07 800 2008/01/22 07:00:00 2008/01/22 15:00:00 9 0.09 92.59%0.07 801 1955/12/01 22:00:00 1955/12/02 08:00:00 11 0.08 92.71%0.07 802 1961/03/15 14:00:00 1961/03/15 23:00:00 10 0.08 92.82%0.07 803 1972/10/17 07:00:00 1972/10/17 14:00:00 8 0.08 92.94%0.07 804 2002/09/29 20:00:00 2002/09/30 05:00:00 10 0.08 93.06%0.07 805 1963/03/15 07:00:00 1963/03/15 15:00:00 9 0.07 93.17%0.07 806 1992/10/30 21:00:00 1992/10/31 05:00:00 9 0.07 93.29%0.07 807 2000/02/16 19:00:00 2000/02/18 03:00:00 33 0.07 93.40%0.07 808 2003/11/03 20:00:00 2003/11/04 07:00:00 12 0.07 93.52%0.07 809 1961/10/08 19:00:00 1961/10/09 01:00:00 7 0.06 93.63%0.07 810 1963/04/14 19:00:00 1963/04/15 03:00:00 9 0.06 93.75%0.07 811 1964/04/01 12:00:00 1964/04/01 18:00:00 7 0.06 93.87%0.07 812 1969/05/05 14:00:00 1969/05/06 18:00:00 29 0.06 93.98%0.07 813 1998/04/13 19:00:00 1998/04/14 02:00:00 8 0.06 94.10%0.07 814 1998/08/31 23:00:00 1998/09/01 06:00:00 8 0.06 94.21%0.07 815 1998/11/11 12:00:00 1998/11/12 04:00:00 17 0.06 94.33%0.07 816 1999/07/18 13:00:00 1999/07/18 20:00:00 8 0.06 94.44%0.07 817 2004/08/30 23:00:00 2004/08/31 06:00:00 8 0.06 94.56%0.07 818 2005/01/28 18:00:00 2005/01/29 00:00:00 7 0.06 94.68%0.07 819 2006/03/17 23:00:00 2006/03/18 15:00:00 17 0.06 94.79%0.07 820 1952/09/19 17:00:00 1952/09/20 01:00:00 9 0.05 94.91%0.07 821 1953/03/20 10:00:00 1953/03/20 18:00:00 9 0.05 95.02%0.07 822 2002/04/15 12:00:00 2002/04/15 16:00:00 5 0.05 95.14%0.07 823 1969/02/15 23:00:00 1969/02/16 06:00:00 8 0.04 95.25%0.07 824 1998/09/03 06:00:00 1998/09/03 15:00:00 10 0.04 95.37%0.07 825 2000/02/28 19:00:00 2000/02/29 00:00:00 6 0.04 95.49%0.07 826 1971/11/12 12:00:00 1971/11/12 15:00:00 4 0.03 95.60%0.07 827 1974/02/19 21:00:00 1974/02/19 23:00:00 3 0.03 95.72%0.07 828 1994/11/18 08:00:00 1994/11/18 11:00:00 4 0.03 95.83%0.07 829 1995/12/16 03:00:00 1995/12/16 06:00:00 4 0.03 95.95%0.07 830 1996/01/25 16:00:00 1996/01/25 21:00:00 6 0.03 96.06%0.07 831 1999/02/07 12:00:00 1999/02/07 16:00:00 5 0.03 96.18%0.07 832 1951/11/13 04:00:00 1951/11/13 08:00:00 5 0.02 96.30%0.07 833 1956/04/11 14:00:00 1956/04/11 17:00:00 4 0.02 96.41%0.07 834 1962/03/29 11:00:00 1962/03/29 15:00:00 5 0.02 96.53%0.07 835 1964/01/18 21:00:00 1964/01/19 02:00:00 6 0.02 96.64%0.07 836 1967/12/16 16:00:00 1967/12/16 22:00:00 7 0.02 96.76%0.07 837 1968/12/11 12:00:00 1968/12/11 14:00:00 3 0.02 96.88%0.07 838 1969/02/28 23:00:00 1969/03/01 03:00:00 5 0.02 96.99%0.07 18/1910/19/2022 11:38 AM Excel Engineering peakFlowStatisticsPostMitigated.csv Rank Start Date End Date Duration (hr) Peak (cfs) Frequency (%) Return Period (Yr) 839 1975/01/30 18:00:00 1975/01/30 21:00:00 4 0.02 97.11%0.07 840 1996/12/31 19:00:00 1996/12/31 22:00:00 4 0.02 97.22%0.07 841 2002/05/21 01:00:00 2002/05/21 04:00:00 4 0.02 97.34%0.07 842 1952/03/19 08:00:00 1952/03/19 12:00:00 5 0.01 97.45%0.07 843 1954/07/13 08:00:00 1954/07/13 09:00:00 2 0.01 97.57%0.07 844 1962/06/15 05:00:00 1962/06/15 16:00:00 12 0.01 97.69%0.07 845 1966/02/10 19:00:00 1966/02/10 22:00:00 4 0.01 97.80%0.07 846 1992/12/12 00:00:00 1992/12/12 02:00:00 3 0.01 97.92%0.07 847 1995/11/01 23:00:00 1995/11/02 00:00:00 2 0.01 98.03%0.07 848 2003/12/08 03:00:00 2003/12/08 05:00:00 3 0.01 98.15%0.07 849 1958/03/02 21:00:00 1958/03/02 22:00:00 2 0 98.26%0.07 850 1960/05/04 14:00:00 1960/05/04 15:00:00 2 0 98.38%0.07 851 1960/12/08 22:00:00 1960/12/08 23:00:00 2 0 98.50%0.07 852 1961/12/14 20:00:00 1961/12/14 21:00:00 2 0 98.61%0.07 853 1966/01/27 09:00:00 1966/01/27 18:00:00 10 0 98.73%0.07 854 1967/04/24 13:00:00 1967/04/24 14:00:00 2 0 98.84%0.07 855 1967/04/29 10:00:00 1967/04/29 11:00:00 2 0 98.96%0.07 856 1972/09/06 08:00:00 1972/09/06 10:00:00 3 0 99.07%0.07 857 1972/11/08 07:00:00 1972/11/08 08:00:00 2 0 99.19%0.07 858 1975/10/07 11:00:00 1975/10/07 12:00:00 2 0 99.31%0.07 859 1987/02/18 20:00:00 1987/02/18 21:00:00 2 0 99.42%0.07 860 1993/12/19 07:00:00 1993/12/19 09:00:00 3 0 99.54%0.07 861 1994/12/13 09:00:00 1994/12/13 11:00:00 3 0 99.65%0.07 862 2000/01/25 20:00:00 2000/01/25 23:00:00 4 0 99.77%0.07 863 2002/03/24 02:00:00 2002/03/24 03:00:00 2 0 99.88%0.07 -------------End of Data----------------- 19/1910/19/2022 11:38 AM Excel Engineering Excel Engineering flowDurationPassFailMitigated.TXT Compared to: pre-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out pre-development time stamp: 1/16/2020 2:53:23 PM Compare Post-Development Curve to Pre-Development Curve Flow Control Upper Limit: 11.98 (cfs) Flow Control Lower Limit: 0.787 (cfs) post-development SWMM file: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out post-development time stamp: 10/18/2022 3:36:24 PM Post P T # Fl ow R ate (cfs ) Post D e v % E xc eed Pre D e v % E xc eed %E x p os t < % E x p re %E x p os t > % E x p re %E x p os t > 1 10% % E x p re Pass/F a il 0 0.79 0.33 0.30 FALSE TRUE FALSE Pass: Post Duration <= 110% Pre Duration 1 0.90 0.26 0.25 FALSE TRUE FALSE Pass: Post Duration <= 110% Pre Duration 2 1.01 0.21 0.23 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 3 1.13 0.18 0.21 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 4 1.24 0.14 0.18 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 5 1.35 0.12 0.17 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 6 1.47 0.10 0.16 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 7 1.58 0.08 0.10 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 8 1.69 0.07 0.09 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 9 1.80 0.05 0.08 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 10 1.92 0.05 0.07 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 11 2.03 0.04 0.07 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 12 2.14 0.03 0.06 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 13 2.26 0.03 0.05 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 14 2.37 0.02 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 15 2.48 0.02 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 16 2.60 0.02 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 17 2.71 0.01 0.04 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 18 2.82 0.01 0.03 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 19 2.94 0.01 0.03 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 20 3.05 0.01 0.03 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 21 3.16 0.01 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 22 3.27 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 23 3.39 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 24 3.50 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 25 3.61 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 26 3.73 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 27 3.84 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 28 3.95 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 29 4.07 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 1/310/19/2022 11:38 AM Excel Engineering flowDurationPassFailMitigated.TXT Post P T # Fl ow R ate (cfs ) Post D e v % E xc eed Pre D e v % E xc eed %E x p os t < % E x p re %E x p os t > % E x p re %E x p os t > 1 10% % E x p re Pass/F a il 30 4.18 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 31 4.29 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 32 4.40 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 33 4.52 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 34 4.63 0.00 0.02 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 35 4.74 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 36 4.86 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 37 4.97 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 38 5.08 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 39 5.20 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 40 5.31 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 41 5.42 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 42 5.54 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 43 5.65 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 44 5.76 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 45 5.87 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 46 5.99 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 47 6.10 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 48 6.21 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 49 6.33 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 50 6.44 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 51 6.55 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 52 6.67 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 53 6.78 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 54 6.89 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 55 7.01 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 56 7.12 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 57 7.23 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 58 7.34 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 59 7.46 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 60 7.57 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 61 7.68 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 62 7.80 0.00 0.01 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 63 7.91 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 64 8.02 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 65 8.14 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 66 8.25 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 67 8.36 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 68 8.48 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 69 8.59 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 2/310/19/2022 11:38 AM Excel Engineering flowDurationPassFailMitigated.TXT Post P T # Fl ow R ate (cfs ) Post D e v % E xc eed Pre D e v % E xc eed %E x p os t < % E x p re %E x p os t > % E x p re %E x p os t > 1 10% % E x p re Pass/F a il 70 8.70 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 71 8.81 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 72 8.93 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 73 9.04 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 74 9.15 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 75 9.27 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 76 9.38 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 77 9.49 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 78 9.61 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 79 9.72 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 80 9.83 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 81 9.94 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 82 10.06 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 83 10.17 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 84 10.28 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 85 10.40 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 86 10.51 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 87 10.62 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 88 10.74 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 89 10.85 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 90 10.96 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 91 11.08 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 92 11.19 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 93 11.30 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 94 11.41 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 95 11.53 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 96 11.64 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 97 11.75 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 98 11.87 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 99 11.98 0.00 0.00 TRUE FALSE FALSE Pass: Post Duration <= Pre Duration 3/310/19/2022 11:38 AM Excel Engineering USGS9217dPre.csv DISCHARGE Number of periods when discharge was equal to or greater than DISCHARGE column but less than that shown on the next line Duration Table Summary at Project Discharge Point file name: Q:\14\14100\GPIP\GP3\SWMM\14100-PRE-A.out time stamp: 1/16/2020 2:53:23 PM Bin Num ber Dis charge R a te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Exce e ded 1 0.79 254 1521 0.302 2 0.90 127 1267 0.252 3 1.01 101 1140 0.227 4 1.13 138 1039 0.207 5 1.24 53 901 0.179 6 1.35 40 848 0.169 7 1.47 326 808 0.161 8 1.58 30 482 0.096 9 1.69 56 452 0.090 10 1.80 35 396 0.079 11 1.92 20 361 0.072 12 2.03 35 341 0.068 13 2.14 51 306 0.061 14 2.26 39 255 0.051 15 2.37 21 216 0.043 16 2.48 10 195 0.039 17 2.60 4 185 0.037 18 2.71 8 181 0.036 19 2.82 7 173 0.034 20 2.94 35 166 0.033 21 3.05 6 131 0.026 22 3.16 8 125 0.025 23 3.27 8 117 0.023 24 3.39 3 109 0.022 25 3.50 4 106 0.021 26 3.61 1 102 0.020 27 3.73 6 101 0.020 28 3.84 3 95 0.019 29 3.95 2 92 0.018 30 4.07 5 90 0.018 31 4.18 1 85 0.017 32 4.29 1 84 0.017 33 4.40 1 83 0.016 34 4.52 4 82 0.016 35 4.63 3 78 0.016 36 4.74 7 75 0.015 37 4.86 1 68 0.014 38 4.97 10 67 0.013 39 5.08 3 57 0.011 40 5.20 4 54 0.011 41 5.31 0 50 0.010 42 5.42 1 50 0.010 43 5.54 1 49 0.010 44 5.65 5 48 0.010 45 5.76 0 43 0.009 46 5.87 1 43 0.009 47 5.99 2 42 0.008 48 6.10 0 40 0.008 49 6.21 0 40 0.008 50 6.33 1 40 0.008 51 6.44 1 39 0.008 1/210/19/2022 11:38 AM Excel Engineering USGS9217dPre.csv Bin N um ber Dis charge Ra te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Excee ded 52 6.55 0 38 0.008 53 6.67 2 38 0.008 54 6.78 0 36 0.007 55 6.89 1 36 0.007 56 7.01 1 35 0.007 57 7.12 1 34 0.007 58 7.23 0 33 0.007 59 7.34 3 33 0.007 60 7.46 2 30 0.006 61 7.57 0 28 0.006 62 7.68 0 28 0.006 63 7.80 4 28 0.006 64 7.91 1 24 0.005 65 8.02 1 23 0.005 66 8.14 0 22 0.004 67 8.25 0 22 0.004 68 8.36 0 22 0.004 69 8.48 0 22 0.004 70 8.59 0 22 0.004 71 8.70 1 22 0.004 72 8.81 0 21 0.004 73 8.93 3 21 0.004 74 9.04 1 18 0.004 75 9.15 0 17 0.003 76 9.27 0 17 0.003 77 9.38 2 17 0.003 78 9.49 1 15 0.003 79 9.61 2 14 0.003 80 9.72 1 12 0.002 81 9.83 0 11 0.002 82 9.94 0 11 0.002 83 10.06 0 11 0.002 84 10.17 0 11 0.002 85 10.28 0 11 0.002 86 10.40 1 11 0.002 87 10.51 1 10 0.002 88 10.62 2 9 0.002 89 10.74 0 7 0.001 90 10.85 0 7 0.001 91 10.96 1 7 0.001 92 11.08 0 6 0.001 93 11.19 0 6 0.001 94 11.30 1 6 0.001 95 11.41 0 5 0.001 96 11.53 0 5 0.001 97 11.64 1 5 0.001 98 11.75 3 4 0.001 99 11.87 1 1 0.000 100 11.98 0 0 0.000 -------------End of Data----------------- 2/210/19/2022 11:38 AM Excel Engineering USGS9217dPostMitigated.csv DISCHARGE Number of periods when discharge was equal to or greater than DISCHARGE column but less than that shown on the next line Duration Table Summary at Project Discharge Point file name: Q:\14\14100\GPIP\GP3\SWMM\14100-MIT-A.out time stamp: 10/18/2022 3:36:24 PM Bin Num ber Dis charge R a te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Exce e ded 1 0.79 333 1644 0.327 2 0.90 258 1311 0.261 3 1.01 168 1053 0.209 4 1.13 169 885 0.176 5 1.24 120 716 0.142 6 1.35 114 596 0.118 7 1.47 80 482 0.096 8 1.58 66 402 0.080 9 1.69 60 336 0.067 10 1.80 45 276 0.055 11 1.92 27 231 0.046 12 2.03 36 204 0.041 13 2.14 26 168 0.033 14 2.26 21 142 0.028 15 2.37 18 121 0.024 16 2.48 18 103 0.020 17 2.60 10 85 0.017 18 2.71 11 75 0.015 19 2.82 13 64 0.013 20 2.94 10 51 0.010 21 3.05 8 41 0.008 22 3.16 10 33 0.007 23 3.27 0 23 0.005 24 3.39 2 23 0.005 25 3.50 0 21 0.004 26 3.61 1 21 0.004 27 3.73 3 20 0.004 28 3.84 2 17 0.003 29 3.95 0 15 0.003 30 4.07 0 15 0.003 31 4.18 1 15 0.003 32 4.29 2 14 0.003 33 4.40 0 12 0.002 34 4.52 0 12 0.002 35 4.63 1 12 0.002 36 4.74 0 11 0.002 37 4.86 0 11 0.002 38 4.97 1 11 0.002 39 5.08 1 10 0.002 40 5.20 1 9 0.002 41 5.31 1 8 0.002 42 5.42 0 7 0.001 43 5.54 0 7 0.001 44 5.65 1 7 0.001 45 5.76 0 6 0.001 46 5.87 0 6 0.001 47 5.99 1 6 0.001 48 6.10 0 5 0.001 49 6.21 0 5 0.001 50 6.33 0 5 0.001 51 6.44 1 5 0.001 1/210/19/2022 11:38 AM Excel Engineering USGS9217dPostMitigated.csv Bin N um ber Dis charge Ra te (c fs) Nu mber of Periods To tal Period s Exceeding Percent Time Excee ded 52 6.55 0 4 0.001 53 6.67 0 4 0.001 54 6.78 0 4 0.001 55 6.89 0 4 0.001 56 7.01 1 4 0.001 57 7.12 0 3 0.001 58 7.23 0 3 0.001 59 7.34 0 3 0.001 60 7.46 0 3 0.001 61 7.57 0 3 0.001 62 7.68 0 3 0.001 63 7.80 0 3 0.001 64 7.91 0 3 0.001 65 8.02 0 3 0.001 66 8.14 1 3 0.001 67 8.25 0 2 0.000 68 8.36 0 2 0.000 69 8.48 1 2 0.000 70 8.59 0 1 0.000 71 8.70 0 1 0.000 72 8.81 0 1 0.000 73 8.93 0 1 0.000 74 9.04 0 1 0.000 75 9.15 0 1 0.000 76 9.27 0 1 0.000 77 9.38 0 1 0.000 78 9.49 0 1 0.000 79 9.61 0 1 0.000 80 9.72 1 1 0.000 81 9.83 0 0 0.000 82 9.94 0 0 0.000 83 10.06 0 0 0.000 84 10.17 0 0 0.000 85 10.28 0 0 0.000 86 10.40 0 0 0.000 87 10.51 0 0 0.000 88 10.62 0 0 0.000 89 10.74 0 0 0.000 90 10.85 0 0 0.000 91 10.96 0 0 0.000 92 11.08 0 0 0.000 93 11.19 0 0 0.000 94 11.30 0 0 0.000 95 11.41 0 0 0.000 96 11.53 0 0 0.000 97 11.64 0 0 0.000 98 11.75 0 0 0.000 99 11.87 0 0 0.000 100 11.98 0 0 0.000 -------------End of Data----------------- 2/210/19/2022 11:38 AM Excel Engineering END OF STATISTICS ANALYSIS ATTACHMENT 3 Structural BMP Maintenance Information Use this checklist to ensure the required information has been included in the Structural BMP Maintenance Information Attachment: Preliminary Design/Planning/CEQA level submittal: Attachment 3 must identify: ◻ Typical maintenance indicators and actions for proposed structural BMP(s) based on Section 7.7 of the BMP Design Manual Final Design level submittal: Attachment 3 must identify: ◻ Specific maintenance indicators and actions for proposed structural BMP(s). This shall be based on Section 7.7 of the BMP Design Manual and enhanced to reflect actual proposed components of the structural BMP(s) ◻ How to access the structural BMP(s) to inspect and perform maintenance ◻ Features that are provided to facilitate inspection (e.g., observation ports, cleanouts, silt posts, or other features that allow the inspector to view necessary components of the structural BMP and compare to maintenance thresholds) ◻ Manufacturer and part number for proprietary parts of structural BMP(s) when applicable ◻ Maintenance thresholds for BMPs subject to siltation or heavy trash(e.g., silt level posts or other markings shall be included in all BMP components that will trap and store sediment, trash, and/or debris, so that the inspector may determine how full the BMP is, and the maintenance personnel may determine where the bottom of the BMP is . If required, posts or other markings shall be indicated and described on structural BMP plans.) ◻ Recommended equipment to perform maintenance ◻ When applicable, necessary special training or certification requirements for inspection and maintenance personnel such as confined space entry or hazardous waste management OPERATION & MAINTENANCE (O&M) PLAN Contents 1. PROJECT DESCRIPTION .................................................................................................. 1 2. OPERATION & MAINTENANCE PLAN ......................................................................... 1 3. Operation & Maintenance of BMP’S .................................................................................. 1 A. Training .............................................................................................................. 2 B. Landscaping ....................................................................................................... 2 C. Irrigation System ................................................................................................ 5 D. Trash Storage Areas .......................................................................................... 5 E. Storm Water Conveyance System Stenciling and Signing ................................. 5 F. Biofiltration ......................................................................................................... 6 G. Outlet Structures ................................................................................................ 8 H. Vector Management Control Requirements ..................................................... 10 ATTACHMENTS A. O&M Exhibit A1. Inspection & Maintenance Schedule B1. Cost Estimate C1. BMP Training Log D1. Inspection & Maintenance Log E1. Maintenance Indicators (Table 7-2) -i- 1 1. PROJECT DESCRIPTION The purpose of the project is the construction of an additional lodge villa featuring walkways and landscape as part of a larger development in MarBrisa Carlsbad Ranch. 2. OPERATION & MAINTENANCE PLAN The Operation and Maintenance Plan (O&M) needs to address construction and post-construction concerns as shown in the Storm Water Mitigation Plan. 3. Operation & Maintenance of BMP’S It shall be the responsibility of the owner to train all employees for the maintenance and operation of all BMPs, to achieve the maximum pollutant reduction, as addressed in the approved Project’s SWMP. The following schedule of (O&M’s) must be followed to satisfy the Conditions of Concern and the Pollutants of Concern as addressed in the approved Project’s SWMP and the City’s BMP manual. This schedule shall include periodic inspections of all Source Control and Treatment Control BMP’s. All maintenance records for training, inspection and maintenance shall be retained and provided to the city upon request. All BMPs shall be inspected 30 days prior to October lst each year and certified to the City Engineering Department as to their readiness to receive runoff from the annual rainfall season. The owner will also provide to the City, as part of the maintenance and operation agreement, an executed maintenance and access easement that shall be binding on the land throughout the life of the project. 2 Responsible Party for O&M and For Training- Property Owner Grand Pacific Resorts, L.P. A. Training Training of Operation and Maintenance personnel is of primary importance to provide knowledge of the operation and maintenance of BMPs. Proper training shall provide information that will enable employees to have in place an effective preventive maintenance program as described in this O & M manual. The responsible party mentioned above should read the course provided by the San Diego BMP Manual, to be trained in the purpose and use of BMPs and the maintenance thereof. Proper preventive maintenance will prevent environmental incidents that may be a health and safety hazard. New employees should be trained as to the purpose and proper maintenance within the first week of their employment. Employee training shall include receiving a copy of this O & M manual; a discussion on the location and purpose of site specific BMPs, such as Source Control and Treatment Control BMPs; training on how to inspect and report maintenance problems and to whom they report to; They shall be trained in site specific Pollutants of Concern so that they can evaluate the functioning of all on-site BMPs . These Pollutants are identified in section 2 of this report. A log of all training and reported inspections and maintenance problems along with what was done to correct the problem shall be kept on the premises at all times. Employees shall be periodically trained, at a minimum of once a year, to refresh their abilities to Operate and Maintain all on-site BMPs. B. Landscaping Operational and maintenance needs include: ▪ Vegetation management to maintain adequate hydraulic functioning and to limit habitat for disease-carrying animals. ▪ Animal and vector control. ▪ Periodic sediment removal to optimize performance. ▪ Trash, debris, grass trimmings, tree pruning, dead vegetation collection and removal. ▪ Removal of standing water, which may contribute to the development of aquatic plant communities or mosquito breeding areas. ▪ Erosion and structural maintenance to prevent the loss of soil and maintain the performance of all landscaping. 3 Inspection Frequency The facility will be inspected and inspection visits will be completely documented: ▪ Once a month at a minimum. ▪ After every large storm (after every storm monitored or these storms with more than 0.50 inch of precipitation.) ▪ On a weekly basis during extended periods of wet weather. Inspect for proper irrigation and fertilizer use, and ensure that all landscaped areas have minimum of 80% coverage. Aesthetic Maintenance The following activities will be included in the aesthetic maintenance program: Grass Trimming: Trimming of grass will be done on all landscaped areas, around fences, at the inlet and outlet structures, and sampling structures. Weed Control. Weeds will be removed through mechanical means. Herbicide will not be used because these chemicals may impact the water quality monitoring. Functional Maintenance Functional maintenance has two components: ▪ Preventive maintenance ▪ Corrective maintenance Preventive Maintenance Preventive maintenance activities to be instituted for landscaped areas are: ▪ Grass Mowing: Vegetation seed, mix within the landscaped areas, are to be designed to be kept short to maintain adequate hydraulic functioning and to limit the development of faunal habitats. ▪ Trash and Debris: During each inspection and maintenance visit to the site, debris and trash removal will be conducted to reduce the potential for inlet and outlet structures and other components from becoming clogged and inoperable during storm events. ▪ Sediment Removal: Sediment accumulation, as part of the operation and maintenance program at of landscaped areas, will be monitored once a month during the dry season, after every large storm (0.50 inch), and monthly during the wet season. Specifically, if sediment reaches a level at or near plant height, or could interfere with flow or operation, the sediment shall be removed. If accumulation of debris or sediment is determined to be the cause of decline in design performance, prompt action (i.e., within ten working days) will be taken to restore the landscaped areas to design performance standards. Actions will include using additional vegetation and/or removing accumulated sediment to correct channeling or ponding. Characterization and Appropriate disposal of sediment will comply with applicable local, county, state, or federal requirements. ▪ Landscaped areas will be re-graded, if the flow gradient has been altered. This should be a sign that the BMP is failing and the soil matrix may need to be replaced. 4 ▪ Removal of Standing Water: Standing water must be removed if it contributes to the development of aquatic plant communities or mosquito breeding areas. ▪ Fertilization and Irrigation: fertilization and irrigation is to be keep at a minimum. ▪ Elimination of Mosquito Breeding Habitats. The most effective mosquito control program is one that eliminates standing water over a period less than 96 hours. Corrective Maintenance Corrective maintenance is required on an emergency or non-routine basis to correct problems and to restore the intended operation and safe function of all landscaped areas. Corrective maintenance activities include: ▪ Removal of Debris and Sediment: Sediment, debris, and trash, which impede the hydraulic functioning of landscaping and prevent vegetative growth, will be removed and properly disposed. Temporary arrangements will be made for handling the sediments until a permanent arrangement is made. Vegetation will be re-established after sediment removal. ▪ Structural Repairs: Once deemed necessary, repairs to structural components of landscaping will be done within l0 working days. Qualified individuals (i.e., the designers or contractors) will conduct repairs where structural damage has occurred. ▪ Embankment and Slope Repairs: Once deemed necessary, damage to the embankments and slopes of landscaped areas will be repaired within l0 working days. ▪ Erosion Repair: Where a reseeding program has been ineffective, or where other factors have created erosive conditions (i.e., pedestrian traffic, concentrated flow, etc.), corrective steps will be taken to prevent loss of soil and any subsequent danger to the performance and use of landscaped areas as BMPs. There are a number of corrective actions than can be taken. ▪ These include erosion control blankets, riprap, or reducing flow velocity. ▪ Consult with an engineer and contractor to address frequently occurring erosion problems. ▪ Elimination of Animal Burrows: animal burrows will be filled and steps taken to remove the animals if burrowing problems continue to occur (filling and compacting). If the problem persists, vector control specialists will be consulted regarding removal steps. This consulting is necessary as the threat of rabies in some areas may necessitate the animals being destroyed rather than relocated. If the BMP performance is affected, abatement will begin. Otherwise, abatement will be performed annually in September. ▪ General Facility Maintenance: In addition to the above elements of corrective maintenance, general corrective maintenance will address the overall facility and its associated components. If corrective maintenance is being done to one component, other components will be inspected to see if maintenance is needed. Maintenance Frequency The maintenance indicators for selected BMPs are included in Attachment Al. 5 Debris and Sediment Disposal Waste generated onsite is ultimately the responsibility of the Owner. Disposal of sediments, debris, and trash will comply with applicable local, county, state, and federal waste control programs. Hazardous Waste Suspected hazardous wastes will be analyzed to determine disposal options. Hazardous wastes generated onsite will be handled and disposed of according to applicable local, state, and federal regulations. A solid or liquid waste is considered a hazardous waste if it exceeds the criteria listed in the CCR, Title 22, Article ll. C. Irrigation System Inspection Frequency and Procedure The Irrigation system shall be checked each week as a minimum. The following items shall be checked to insure that they are functioning properly: ▪ Shut-off devices. ▪ All piping and sprinkler heads to insure there are no leaks and that proper water spread is maintained. ▪ All flow reducers. ▪ Check for overspray/runoff D. Trash Storage Areas ▪ All trash storage areas shall be inspected daily to insure that they are clean from trash. Also the following shall be inspected annually 30 days prior to October lst of each year. ▪ Pavement is in good repair. ▪ Drainage will not run-off onto adjacent areas. ▪ That they remain screened or walled to prevent off-site transport of trash. ▪ That all lids are closed and/or awnings are in good repair to minimize direct precipitation. ▪ Signs posted on or near dumpsters with the words “Do not dump hazardous materials here” or similar. E. Storm Water Conveyance System Stenciling and Signing ▪ Signage/stenciling are to be inspected for legibility and visual obstruction and shall be Repaired and cleared of any obstruction within 5 working day of inspection. 6 ▪ Inspection Frequency: Semi-annually, 30 days prior to October lst each year, and monthly during rainy season. F. Biofiltration Operational and maintenance needs include: ▪ Vegetation management to maintain adequate hydraulic functioning and to limit habitat for disease-carrying animals. ▪ Animal and vector control. ▪ Periodic sediment removal to optimize performance. ▪ Trash, debris, grass trimmings, tree pruning, dead vegetation collection and removal. ▪ Removal of standing water, which may contribute to the development of aquatic plant communities or mosquito breeding areas. ▪ Erosion and structural maintenance to prevent the loss of soil and maintain the performance of all landscaping. ▪ Outlet maintenance: maintain trash free; remove silt; clear clogged outlets and standing Water after 96 hours. ▪ Signs Posted at each bmp that state the following words “ PERMANENT WATER QUALITY TREATMENT FACILITY” “KEEPING OUR WATERWAYS CLEAN” “ MAINTAIN WITH CARE – NO MODIFICATIONS WITHOUT AGENCY APPROVAL” G. Outlet Structures All outlet structures shall be kept functional at all times. Routine inspection and corrective maintenance shall include removal of trash sediment and debris and repair of any structural damage or clogging of orifice outlets. The minimum maintenance frequency shall be 30 days prior to October 1st each year, weekly during rainy season or within 24 hours prior to forecasts. To clean lower orifice in the event of clogging  This activity will require workers to open catch basin grates to remove debris from the lower orifice plate.  Remove grate and visually inspect lower orifice plate and blockage  Remove debris from inside of catch basin and around orifice plate  Replace grate when orifice plate and inside of catch basin are free of debris H. Vector Management Control Requirements Due to Clean Water Act requirements and mandates imposed by the Water Quality Control Board, large quantities of stormwater will be detained onsite in above ground and underground storage facilities for treatment and storage. These storage facilities are required to dewater or discharge at a very small flow rate in order to comply with these requirements. The outlet structure for the underground storage and bioretention facility had to be sized to a variable size between 0.25” to 6” in order to maintain the maximum allowed discharge flow. The facility was designed to dewater in less than 96 hours. However, due to its small size and if not properly maintained regularly, it is anticipated that the outlet might have a tendency to clog frequently. Consequently, the facility may not drain within 96 hours and possibly take substantially longer time. This creates an increased risk for onsite Vector Issues and bringing their potential for severe harm to human health. In order to implement vector controls including minimizing the risk for mosquito-borne disease 7 transmission, It is the responsibility of the Owner to regularly maintain the outlet structures and monitor the site after every storm event to ensure that the system (comprising of above ground storage facilities) is dewatered in less than 96 hours. Otherwise the owner will be required to implement a vector control plan in accordance with California Department of Public Health. General guidelines to help create a project specific vector control plan for your project: ATTACHMENT “A1” INSPECTION & MAINTENANCE SCHEDULE PREVENTATIVE MAINTENANCE AND ROUTINE INSPECTION TYPE BMP Routine Action Maintenance Indicator Maintenance Frequency MAINTENANCE ACTIVITY SITE-SPECIFIC REQUIREMENTS Landscaping & irrigation Proper irrigation & Fertilizer. Less than 80% coverage 30 days prior to October 1st each year and Monthly Re-seed or Re- plant. Repair Irrigation system with-in 5-days. All slopes and landscaped areas are to have a minimum coverage of 80% Trash storage areas Trash free and removal of silt Visual Inspection Daily inspection Remove trash and silt Daily. All trash storage areas to be free from trash and silt at all times Bioretention Trash free and removal of silt. Clear Clogged outlets and Standing Water. Silt build up of more than 2” no trash, Exposed soils, dead vegetation, ponded water, and excessive vegetation (see TC-32) 30 days prior to October 1st each year, monthly during rainy season, and after Storm Event Remove trash and silt – repair and reseed exposed areas, maintain grass height so as not be shorter than 2” or higher than 5” remove all ponded water weekly inspections, (See TC-32) All bio-filters to be free from trash and silt at all times, grass area to be free from exposed soil and maintained to proper height, ponding of water for more than 72 hours maintenance will be required Storm Water Conveyance system Stenciling & Signing Must be legible at all times and have a clear view. Fading of paint or illegible letters or Semi-annually, 30 days prior to October 1st each year & monthly during rainy season Repaint stenciling and/or replace signs 30 days prior to October 1st. Applicable to all stenciling and signs Outlet Structures Must be kept functional at all times. Clear Clogged outlets and Standing Water. Silt, debris, trash accumulation, Ponding Water 30 days prior to October 1st each year and weekly during rainy season or within 24 hours prior to rain forecasts. Silt, debris, trash accumulation and repair any structural damage to the outlet structures. All outlet structures shall be kept functional at all times. 9 ATTACMENT “B1” Annual Estimate to Maintain all BMPs Landscaping & Bioretention Annual 10-Year Maintenance of landscaping and bio-filters is already included in the property management responsibilities. Additional cost: $200 $2,000 Irrigation System: Inspection and maintenance of the irrigation system is already included in the property management responsibilities, Additional cost: $100 $1,000 Training: Once a year & training of new employees within their first week of employment. $100 $1,000 Total Estimated Annual Cost to Maintain BMPs ATTACHMENT "C1" BMP TRAINING LOG Date Type of Training Personnel Trained Trainer Mo/Day/Yr ATTACHMENT “D1” INSPECTION AND MAINTENANCE LOG BMP TYP & LOCATION DATE M/D/Y Name of Person Inspecting Description of BMP Condition/ Description repair required if any Date Repair made and Description repair made and by who ATTACHMENT "D1" INSPECTION AND MAINTENANCE LOG BMP TYP & LOCATION DATE M/D/Y Name of Person Inspecting Description of BMP Condition/ Description repair required if any Date Repair made and Description repair made and by who ATTACHMENT "D1" INSPECTION AND MAINTENANCE LOG BMP TYP & LOCATION DATE M/D/Y Name of Person Inspecting Description of BMP Condition/ Description repair required if any Date Repair made and Description repair made and by who ATTACHMENT 3 STRUCTURAL BMP MAINTENANCE INFORMATION ATTACHMENT E1. MAINTENANCE INDICATORS TABLE 7-2. Maintenance Indicators and Actions for Vegetated BMPs Typical Maintenance Indicator(s) for Vegetated BMPs Maintenance Actions Accumulation of sediment, litter, or debris Remove and properly dispose of accumulated materials, without damage to the vegetation. Poor vegetation establishment Re-seed, re-plant, or re-establish vegetation per original plans. Overgrown vegetation Mow or trim as appropriate, but not less than the design height of the vegetation per original plans when applicable (e.g. a vegetated swale may require a minimum vegetation height). Erosion due to concentrated irrigation flow Repair/re-seed/re-plant eroded areas and adjust the irrigation system. Typical Maintenance Indicator(s) for Vegetated BMPs Maintenance Actions Erosion due to concentrated storm water runoff flow Repair/re-seed/re-plant eroded areas, and make appropriate corrective measures such as adding erosion control blankets, adding stone at flow entry points, or minor re-grading to restore proper drainage according to the original plan. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. Standing water in vegetated swales Make appropriate corrective measures such as adjusting irrigation system, removing obstructions of debris or invasive vegetation, loosening or replacing top soil to allow for better infiltration, or minor re-grading for proper drainage. If the issue is not corrected by restoring the BMP to the original plan and grade, the [City Engineer] shall be contacted prior to any additional repairs or reconstruction. Standing water in bioretention, biofiltration with partial retention, or biofiltration areas, or flow-through planter boxes for longer than 96 hours following a storm event* Make appropriate corrective measures such as adjusting irrigation system, removing obstructions of debris or invasive vegetation, clearing underdrains (where applicable), or repairing/replacing clogged or compacted soils. Obstructed inlet or outlet structure Clear obstructions. Damage to structural components such as weirs, inlet or outlet structures Repair or replace as applicable. *These BMPs typically include a surface ponding layer as part of their function which may take 96 hours to drain following a storm event. TABLE 7-3. Maintenance Indicators and Actions for Non-Vegetated Infiltration BMPs Typical Maintenance Indicator(s) for Non-Vegetated Infiltration BMPs Maintenance Actions Accumulation of sediment, litter, or debris in infiltration basin, pretreatment device, or on permeable pavement surface Remove and properly dispose accumulated materials. Standing water in infiltration basin without subsurface infiltration gallery for longer than 96 hours following a storm event Remove and replace clogged surface soils. Standing water in subsurface infiltration gallery for longer than 96 hours following a storm event This condition requires investigation of why infiltration is not occurring. If feasible, corrective action shall be taken to restore infiltration (e.g. flush fine sediment or remove and replace clogged soils). BMP may require retrofit if infiltration cannot be restored. If retrofit is necessary, the [City Engineer] shall be contacted prior to any repairs or reconstruction. Standing water in permeable paving area Flush fine sediment from paving and subsurface gravel. Provide routine vacuuming of permeable paving areas to prevent clogging. Note: When inspection or maintenance indicates sediment is accumulating in an infiltration BMP, the DMA draining to the infiltration BMP should be examined to determine the source of the sediment, and corrective measures should be made as applicable to minimize the sediment supply. TABLE 7-4. Maintenance Indicators and Actions for Filtration BMPs Typical Maintenance Indicator(s) for Filtration BMPs Maintenance Actions Accumulation of sediment, litter, or debris Remove and properly dispose accumulated materials. Obstructed inlet or outlet structure Clear obstructions. Clogged filter media Remove and properly dispose filter media, and replace with fresh media. Damage to components of the filtration system Repair or replace as applicable. Note: For proprietary media filters, refer to the manufacturer's maintenance guide. Appendix E: BMP Design Fact Sheets E-4 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP Must Consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative A. Onsite storm drain inlets Not Applicable Locations of inlets. Mark all inlets with the words “No Dumping! Flows to Bay” or similar. See stencil template provided in Appendix I-4 Maintain and periodically repaint or replace inlet markings. Provide storm water pollution prevention information to new site owners, lessees, or operators. See applicable operational BMPs in Fact Sheet SC-44, “Drainage System Maintenance,” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bmp- handbooks/municipal-bmp-handbook. Include the following in lease agreements: “Tenant shall not allow anyone to discharge anything to storm drains or to store or deposit materials so as to create a potential discharge to storm drains.” Appendix E: BMP Design Fact Sheets E-5 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative B. Interior floor drains and elevator shaft sump pumps Not Applicable State that interior floor drains and elevator shaft sump pumps will be plumbed to sanitary sewer. Inspect and maintain drains to prevent blockages and overflow. C. Interior parking garages Not Applicable State that parking garage floor drains will be plumbed to the sanitary sewer. Inspect and maintain drains to prevent blockages and overflow. D1. Need for future indoor & structural pest control Not Applicable Note building design features that discourage entry of pests. Provide Integrated Pest Management information to owners, lessees, and operators. Appendix E: BMP Design Fact Sheets E-6 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative D2. Landscape/ Outdoor Pesticide Use Not Applicable Show locations of existing trees or areas of shrubs and ground cover to be undisturbed and retained. Show self-retaining landscape areas, if any. Show storm water treatment facilities. State that final landscape plans will accomplish all of the following. Preserve existing drought tolerant trees, shrubs, and ground cover to the maximum extent possible. Design landscaping to minimize irrigation and runoff, to promote surface infiltration where appropriate, and to minimize the use of fertilizers and pesticides that can contribute to storm water pollution. Where landscaped areas are used to retain or detain storm water, specify plants that are tolerant of periodic saturated soil conditions. Consider using pest-resistant plants, especially adjacent to hardscape. To ensure successful establishment, select plants appropriate to site soils, slopes, climate, sun, wind, rain, land use, air movement, ecological consistency, and plant interactions. Maintain landscaping using minimum or no pesticides. See applicable operational BMPs in Fact Sheet SC-41, “Building and Grounds Maintenance,” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bmp-handbooks/municipal-bmp- handbook. Provide IPM information to new owners, lessees and operators. Appendix E: BMP Design Fact Sheets E-7 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative E. Pools, spas, ponds, decorative fountains, and other water features. Not Applicable Show location of water feature and a sanitary sewer cleanout in an accessible area within 10 feet. If the local municipality requires pools to be plumbed to the sanitary sewer, place a note on the plans and state in the narrative that this connection will be made according to local requirements. See applicable operational BMPs in Fact Sheet SC-72, “Fountain and Pool Maintenance,” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bmp-handbooks/municipal- bmp-handbook. F. Food service Not Applicable For restaurants, grocery stores, and other food service operations, show location (indoors or in a covered area outdoors) of a floor sink or other area for cleaning floor mats, containers, and equipment. On the drawing, show a note that this drain will be connected to a grease interceptor before discharging to the sanitary sewer. Describe the location and features of the designated cleaning area. Describe the items to be cleaned in this facility and how it has been sized to ensure that the largest items can be accommodated. Appendix E: BMP Design Fact Sheets E-8 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative G. Refuse areas Not Applicable Show where site refuse and recycled materials will be handled and stored for pickup. See local municipal requirements for sizes and other details of refuse areas. If dumpsters or other receptacles are outdoors, show how the designated area will be covered, graded, and paved to prevent run- on and show locations of berms to prevent runoff from the area. Also show how the designated area will be protected from wind dispersal. Any drains from dumpsters, compactors, and tallow bin areas must be connected to a grease removal device before discharge to sanitary sewer. State how site refuse will be handled and provide supporting detail to what is shown on plans. State that signs will be posted on or near dumpsters with the words “Do not dump hazardous materials here” or similar. State how the following will be implemented: Provide adequate number of receptacles. Inspect receptacles regularly; repair or replace leaky receptacles. Keep receptacles covered. Prohibit/prevent dumping of liquid or hazardous wastes. Post “no hazardous materials” signs. Inspect and pick up litter daily and clean up spills immediately. Keep spill control materials available on- site. See Fact Sheet SC-34, “Waste Handling and Disposal” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bmp- handbooks/municipal-bmp-handbook. Appendix E: BMP Design Fact Sheets E-9 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative Table and Narrative H. Industrial processes. Not Applicable Show process area. If industrial processes are to be located onsite, state: “All process activities to be performed indoors. No processes to drain to exterior or to storm drain system.” See Fact Sheet SC-10, “Non- Storm Water Discharges” in the CASQA Storm Water Quality Handbooks at https://www.casqa.org/resources/bmp-handbooks. I. Outdoor storage of equipment or materials. (See rows J and K for source control measures for vehicle cleaning, repair, and maintenance.) Not Applicable Show any outdoor storage areas, including how materials will be covered. Show how areas will be graded and bermed to prevent run-on or runoff from area and protected from wind dispersal. Storage of non-hazardous liquids must be covered by a roof and/or drain to the sanitary sewer system, and be contained by berms, dikes, liners, or vaults. Storage of hazardous materials and wastes must be in compliance with the local hazardous materials ordinance and a Hazardous Materials Management Plan for the site. Include a detailed description of materials to be stored, storage areas, and structural features to prevent pollutants from entering storm drains. Where appropriate, reference documentation of compliance with the requirements of local Hazardous Materials Programs for:  Hazardous Waste Generation  Hazardous Materials Release Response and Inventory  California Accidental Release Prevention Program  Aboveground Storage Tank  Uniform Fire Code Article 80 Section 103(b) & (c) 1991  Underground Storage Tank See the Fact Sheets SC-31, “Outdoor Liquid Container Storage” and SC-33, “Outdoor Storage of Raw Materials” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bmp-handbooks/municipal-bmp- handbook. Appendix E: BMP Design Fact Sheets E-10 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative J. Vehicle and Equipment Cleaning Not Applicable Show on drawings as appropriate: (1) Commercial/industrial facilities having vehicle /equipment cleaning needs must either provide a covered, bermed area for washing activities or discourage vehicle/equipment washing by removing hose bibs and installing signs prohibiting such uses. (2) Multi-dwelling complexes must have a paved, bermed, and covered car wash area (unless car washing is prohibited onsite and hoses are provided with an automatic shut- off to discourage such use). (3) Washing areas for cars, vehicles, and equipment must be paved, designed to prevent run-on to or runoff from the area, and plumbed to drain to the sanitary sewer. (4) Commercial car wash facilities must be designed such that no runoff from the facility is discharged to the storm drain system. Wastewater from the facility must discharge to the sanitary sewer, or a wastewater reclamation system must be installed. If a car wash area is not provided, describe measures taken to discourage onsite car washing and explain how these will be enforced. Describe operational measures to implement the following (if applicable): Washwater from vehicle and equipment washing operations must not be discharged to the storm drain system. Car dealerships and similar may rinse cars with water only. See Fact Sheet SC-21, “Vehicle and Equipment Cleaning,” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bmp-handbooks/municipal-bmp- handbook. Appendix E: BMP Design Fact Sheets E-11 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative K. Vehicle/Equipment Repair and Maintenance Not Applicable Accommodate all vehicle equipment repair and maintenance indoors. Or designate an outdoor work area and design the area to protect from rainfall, run-on runoff, and wind dispersal. Show secondary containment for exterior work areas where motor oil, brake fluid, gasoline, diesel fuel, radiator fluid, acid- containing batteries or other hazardous materials or hazardous wastes are used or stored. Drains must not be installed within the secondary containment areas. Add a note on the plans that states either (1) there are no floor drains, or (2) floor drains are connected to wastewater pretreatment systems prior to discharge to the sanitary sewer and an industrial waste discharge permit will be obtained. State that no vehicle repair or maintenance will be done outdoors, or else describe the required features of the outdoor work area. State that there are no floor drains or if there are floor drains, note the agency from which an industrial waste discharge permit will be obtained and that the design meets that agency’s requirements. State that there are no tanks, containers or sinks to be used for parts cleaning or rinsing or, if there are, note the agency from which an industrial waste discharge permit will be obtained and that the design meets that agency’s requirements. In the report, note that all of the following restrictions apply to use the site: No person must dispose of, nor permit the disposal, directly or indirectly of vehicle fluids, hazardous materials, or rinsewater from parts cleaning into storm drains. No vehicle fluid removal must be performed outside a building, nor on asphalt or ground surfaces, whether inside or outside a building, except in such a manner as to ensure that any spilled fluid will be in an area of secondary containment. Leaking vehicle fluids must be contained or drained from the vehicle immediately. No person must leave unattended drip parts or other open containers containing vehicle fluid, unless such containers are in use or in an area of secondary containment. Appendix E: BMP Design Fact Sheets E-12 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative L. Fuel Dispensing Areas Not Applicable Fueling areas16 must have impermeable floors (i.e., portland cement concrete or equivalent smooth impervious surface) that are (1) graded at the minimum slope necessary to prevent ponding; and (2) separated from the rest of the site by a grade break that prevents run-on of storm water to the MEP. Fueling areas must be covered by a canopy that extends a minimum of ten feet in each direction from each pump. [Alternative: The fueling area must be covered and the cover’s minimum dimensions must be equal to or greater than the area within the grade break or fuel dispensing area1.] The canopy [or cover] must not drain onto the fueling area. The property owner must dry sweep the fueling area routinely. See the Business Guide Sheet, “Automotive Service—Service Stations” in the CASQA Storm Water Quality Handbooks at https://www.casqa.org/resources/b mp-handbooks. 16 The fueling area must be defined as the area extending a minimum of 6.5 feet from the corner of each fuel dispenser or the length at which the hose and nozzle assembly may be operated plus a minimum of one foot, whichever is greater. Appendix E: BMP Design Fact Sheets E-13 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in 4 Operational BMPs—Include in Table and Narrative M. Loading Docks Not Applicable Show a preliminary design for the loading dock area, including roofing and drainage. Loading docks must be covered and/or graded to minimize run-on to and runoff from the loading area. Roof downspouts must be positioned to direct storm water away from the loading area. Water from loading dock areas should be drained to the sanitary sewer where feasible. Direct connections to storm drains from depressed loading docks are prohibited. Loading dock areas draining directly to the sanitary sewer must be equipped with a spill control valve or equivalent device, which must be kept closed during periods of operation. Provide a roof overhang over the loading area or install door skirts (cowling) at each bay that enclose the end of the trailer. Move loaded and unloaded items indoors as soon as possible. See Fact Sheet SC-30, “Outdoor Loading and Unloading,” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bmp-handbooks/municipal-bmp-handbook. Appendix E: BMP Design Fact Sheets E-14 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative N. Fire Sprinkler Test Water Not Applicable Provide a means to drain fire sprinkler test water to the sanitary sewer. See the note in Fact Sheet SC- 41, “Building and Grounds Maintenance,” in the CASQA Storm Water Quality Handbooks at www.casqa.org/resources/bm p-handbooks/municipal-bmp- handbook O. Miscellaneous Drain or Wash Water Boiler drain lines Condensate drain lines Rooftop equipment Drainage sumps Roofing, gutters, and trim Not Applicable Boiler drain lines must be directly or indirectly connected to the sanitary sewer system and may not discharge to the storm drain system. Condensate drain lines may discharge to landscaped areas if the flow is small enough that runoff will not occur. Condensate drain lines may not discharge to the storm drain system. Rooftop mounted equipment with potential to produce pollutants must be roofed and/or have secondary containment. Any drainage sumps onsite must feature a sediment sump to reduce the quantity of sediment in pumped water. Avoid roofing, gutters, and trim made of copper or other unprotected metals that may leach into runoff. Appendix E: BMP Design Fact Sheets E-15 February 26, 2016 If These Sources Will Be on the Project Site … … Then Your SWQMP must consider These Source Control BMPs 1 Potential Sources of Runoff Pollutants 2 Permanent Controls—Show on Drawings 3 Permanent Controls—List in Table and Narrative 4 Operational BMPs—Include in Table and Narrative P. Plazas, sidewalks, and parking lots. Not Applicable Plazas, sidewalks, and parking lots must be swept regularly to prevent the accumulation of litter and debris. Debris from pressure washing must be collected to prevent entry into the storm drain system. Washwater containing any cleaning agent or degreaser must be collected and discharged to the sanitary sewer and not discharged to a storm drain. ATTACHMENT 3A - OCTOBER 2022 1 ATTACHMENT 3a STRUCTURAL MAINTENANCE PLAN ATTACHMENT 3A - OCTOBER 2022 2 MAINTENACE INDICATORS Typical Maintenance Indicator(s) for Vegetated BMPs Maintenance Actions Accumulation of sediment, litter, or debris Remove and properly dispose of accumulated materials, without damage to the vegetation. Poor vegetation establishment Re-seed, re-plant, or re-establish vegetation per original plans. Overgrown vegetation Mow or trim as appropriate, but not less than the design height of the vegetation per original plans when applicable (e.g. a vegetated swale may require a minimum vegetation height). Erosion due to concentrated irrigation flow Repair/re-seed/re-plant eroded areas and adjust the irrigation system. Erosion due to concentrated storm water runoff flow Repair/re-seed/re-plant eroded areas, and make appropriate corrective measures such as adding erosion control blankets, adding stone at flow entry points, or minor re-grading to restore proper drainage according to the original plan. If the issue is not corrected by restoring the BMP to the original plan and grade, The County must be contacted prior to any additional repairs or reconstruction. Standing water in vegetated swales Make appropriate corrective measures such as adjusting irrigation system, removing obstructions of debris or invasive vegetation, loosening or replacing top soil to allow for better infiltration, or minor re-grading for proper drainage. If the issue is not corrected by restoring the BMP to the original plan and grade, County staff in the Watershed Protection Program must be contacted prior to any additional repairs or reconstruction. Standing water in bioretention, biofiltration with partial retention, or biofiltration areas, or flow-through planter boxes for longer than 96 hours following a storm event* Make appropriate corrective measures such as adjusting irrigation system, removing obstructions of debris or invasive vegetation, clearing underdrains (where applicable), or repairing/replacing clogged or compacted soils. Obstructed inlet or outlet structure Clear obstructions. Damage to structural components such as weirs, inlet or outlet structures Repair or replace as applicable. *These BMPs typically include a surface ponding layer as part of their function which may take 96 hours to drain following a storm event. ATTACHMENT 3A - OCTOBER 2022 3 ACCESS AND MAINTENANCE Structural IMP-I Structural IMP-I is constructed along the western perimeter of MarBrisa Carlsbad Ranch Planning Area Number 5, approximately 400 feet away from Villa 67. Please see LID and DMA Exhibit of Attachment 1a for site overview and IMP location. IMP-I is designed as a bioretention swale with a 24”x24” box riser to attenuate a 100-year storm event. The swale design consists of layered sand and gravel aggregate with an impermeable liner. A 12” perforated PVC installed along the length of the swale. Inspection of the outlet pipe will be performed through the grated assembly of the riser and via 12” solid PVC cleanouts every 50’. Maintenance of IMP-I will be performed, at minimum, when these thresholds are exceeded: · Grass higher than 4” · Wilting and/or dying trees, shrubs or grass · Erosive conditions cause ponding area side slopes to exceed 3:1 · Silt buildup of more than 2” · Ponding surface drawdown time exceeds 24 hours · Ponding elevation exceeds top of pond elevation In order to perform maintenance on the structural IMP, it is recommended that lawn and shrub care equipment be used. Compaction of swale soils shall be avoided and it is recommended that heavy equipment not be used. No special training or certification is needed in inspecting or maintaining this IMP. Structural IMP-II Structural IMP-I is constructed along the southwestern perimeter of MarBrisa Carlsbad Ranch Planning Area Number 5, approximately 300 feet away from Villa 67. Please see LID and DMA Exhibit of Attachment 1a for site overview and IMP location. IMP-II is designed as a bioretention swale with an existing 48”x48” box riser to attenuate a 100-year storm event. The swale design consists of layered sand and gravel aggregate with an impermeable liner. A 12” perforated PVC installed along the length of the swale. Inspection of the outlet pipe will be performed through the grated assembly of the existing riser and via 12” solid PVC cleanouts every 50’. Maintenance of IMP-I will be performed, at minimum, when these thresholds are exceeded: · Grass higher than 4” · Wilting and/or dying trees, shrubs or grass · Erosive conditions cause ponding area side slopes to exceed 3:1 · Silt buildup of more than 2” · Ponding surface drawdown time exceeds 24 hours · Ponding elevation exceeds top of pond elevation ATTACHMENT 3A - OCTOBER 2022 4 In order to perform maintenance on the structural IMP, it is recommended that lawn and shrub care equipment be used. Compaction of swale soils shall be avoided and it is recommended that heavy equipment not be used. No special training or certification is needed in inspecting or maintaining this IMP. ATTACHMENT 3B - OCTOBER 2022 1 ATTACHMENT 3b DRAFT MAINTENANCE AGREEMENT ATTACHMENT 3B - OCTOBER 2022 2 RECORDING REQUESTD BY: WHEN RECORDED MAIL TO: (property owner) SPACE ABOVE THIS LINE FOR RECORDER’S USE MAINTENANCE NOTIFICATION AGREEMENT FOR CATEGORY 1 STORMWATER STRUCTURAL BMP’s THIS AGREEMENT is made on the day of , 20 . , the Owner(s) of the hereinafter described real property: Address , Post Office Zip Code Assessor Parcel No.(s) List, identify, locate (plan/drawing number) and describe the Structural Owner(s) of the above property acknowledge the existence of the storm water Structural Best Management Practice on the said property. Perpetual maintenance of the Structural BMP(s) is the requirement of the State NPDES Permit, Order No. R9-2015-0001, Section E.3.e.(1)( c) and the County of San Diego Watershed Protection Ordinance (WPO) Ordinance No. 10385 Section 67.812 through Section 67.814, and County BMP Design Manual (BMP DM) Chapters 7 & 8. In consideration of the requirement to construct and maintain Structural BMP(s), as conditioned by Discretionary Permit, Grading Permit, and/or Building Permit (as may be applicable), I/we hereby covenant and agree that: 1. I/We are the owner(s) of the existing (or to be constructed concurrently) premises located on the above described property. 2. I/We shall take the responsibility for the perpetual maintenance of the Structural BMP(s) as listed above in accordance with the maintenance plan and in compliance with County’s self-inspection reporting and verification for as long as I/we have ownership of said property(ies). 3. I/We shall cooperate with and allow the County staff to come onto said property(ies) and perform inspection duties as prescribed by local and state regulators. 4. I/We shall inform future buyer(s) or successors of said property(ies) of the existence and perpetual maintenance requirement responsibilities for Structural BMP(s) as listed above and to ensure that such responsibility shall transfer to the future owner(s). 5. I/We will abide by all of the requirements and standards of Section 67.812 through Section 67.814 of the WPO (or renumbering thereof) as it exists on the date of this Agreement, and which hereby is incorporated herein by reference. This Agreement shall run with the land. If the subject property is conveyed to any other person, firm, or corporation, the instrument that conveys title or any interest in or to said property, or any portion thereof, shall contain a provision transferring maintenance responsibility for Structural BMP(s) to the successive owner according to the terms of this Agreement. Any violation of this Agreement is grounds for the County to impose penalties upon the property owner as prescribed in County Code of Regulatory Ordinances, Title 1, Division 8, Chapter 1 Administrative Citations §§18.101-18.116. Owner(s) Signature(s) Print Owner(s) Name(s) and Title STATE OF CALIFORNIA ) COUNTY OF ) On before me, Notary Public, personally appeared who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are subscribed to the within instrument and acknowledged to me that he/she/they executed the same in his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the person(s) or the entity upon behalf of which the person(s) acted, executed the instrument. I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing paragraph is true and correct. WITNESS my hand and official seal. ATTACHMENT 4 City standard Single Sheet BMP (SSBMP) Exhibit [Use the City’s standard Single Sheet BMP Plan.] OUTFALL 2 O U T F A L L 1 * REV. 1/2020 ENGINEER OF WORK · · · · · · · · · · · · · · ·