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HomeMy WebLinkAboutCT 11-04; QUARRY CREEK; PRELIMINARY STORM WATER MANAGEMENT PLAN; 2012-03-13PRELIMINARY STORM WATER MANAGEMENT PLAN FOR QUARRY CREEK (CT 11-04) (VESTING TENTATIVE MAP) Job Number 16483 October 19, 2011 Revised: December 20, 2011 Revised: March 13, 2012 CT ENGINEERING COMPANY IIT*P .com I I .1 I PRELIMINARY STORM WATER MANAGEMENT PLAN FOR QUARRY CREEK (CT 11-04) t2wteJ (VESTING TENTATIVE MAP) Job Number 16483 I I I Dennis Bow ' R.C.E. #32 Exp. O'7T OESSIO,l, fOIN 16 1z NO. 32838 EXP. 06130/12 IVA OF Prepared For: The Corky McMillin Companies 2750 Womble Road San Diego. CA 92106 Mr. Don Mitchell (619) 794-1252 Prepared By: Rick Engineering Company Water Resources Division 5620 Friars Road San Diego, California 92110-2596 (619) 291-0707 October 19, 2011 Revised: December 20, 2011 Revised: March 13,2012 I 1' I I I TABLE OF CONTENTS I Plan Check Comments #2 ................................................................................................................. j PlanCheck Comments #1 ............................................................................................................... .ii 1.0 Introduction ...............................................................................................................................1 1 2.0 Identification of Pollutants and Conditions of Concern ................................................... . ......... 9 3.0 Source Control Measures ......................................................................................................... 13 I 4.0 Integrated Low Impact Development Design Strategies.........................................................16 5.0 Hydromodification ..................................................................................................................... 20 6.0 of Documentation Storm Water Design..................................................................................25 7.0 Operation and Maintenance.....................................................................................................26 I 8.0 SWMP Certification Statements..............................................................................................32 I I Tables: Table 2-1: Anticipated and Potential Pollutants Generated by Land Use Type ...........................10 ' Table 3-1: Permanent and Operational Source Control Measures................................................13 Table 4-1: Grouping of Potential Pollutants of Concern by Fate during Stormwater Treatment. 17 ,I Table 4-2: Groups of Pollutants and Relative Effectiveness of Treatment Facilities...................18 Table 7-1: Summary Table of Inspection and Maintenance Frequency.......................................31 I Appendices: I Appendix A: City of Carlsbad Storm Water Standards Questionnaire (SWSQ) Appendix B: HIvIP Applicability Determination Matrix I Appendix C: Water Quality Treatment Calculations & Support Materials Appendix D: SDHM Output and Support Material Appendix E: DMA/IMP/BMP Exhibit for Quarry Creek I Prepared By: DCB:SL:vs/Reportl16483.003 Rick Engineering Company - Water Resources Division 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I Rick Engineering Company Response to City of Carlsbad plan check titled 3rd Review for Quarry Creek Master Plan - GPA 11-09/ZC 11-04/MP 10-01/CT 11-04/SUP 11-04/lIMP 11-07/HDP 11-04" dated January 31, 2012 —Plan Check Comments #2 March 13, 2012 Comment 25: Please provide a drainage basin map showing the locations of drainage basins 1 to 4 and its sub-basins mentioned in the SWMP report. The third paragraph on page 4 refers to the exhibit in Appendix E for locations of drainage basins. However, the Storm Water Management Exhibit found in Appendix E includes only the DMAs, IMPs/BMPs but not the drainage basins. Response: The Storm Water Management exhibit has been revised to more clearly show the major drainage basins and sub-basins. The drainage basins are color coded and labeled according to the POC to which it discharges. I Comment 26: The SWMP exhibit in Appendix E must include a summary table that shows the required sizes of each of the proposed IMPs/BMPs, including length, width, orifice diameter, and details of the outlet structures, including mechanism to avoid orifice clogging. A full size SWMP exhibit must be added to the tentative map/site plan. Response: The SWMP exhibit has been revised to include a summary table showing the required information as stated above. A full size SWMP exhibit has been included in the tentative map/site plan. Comment 27: The points of compliance (POCs) in the SWMP report do not match the POCs in the SCCWRP analysis. Response: The POCs in the SWMP have been renamed to better correlate to the POCs in the SCCWRP analysis. Prepared By: DCB:SL:vs/Reportil6483.003 Rick Engineering Company - Water Resources Division 10-19-11 j Revised: 12-20-11 Revised:3-12-12 I I Rick Engineering Company Response to City of Carlsbad plan check titled "2 d Review for Quarry Creek Master Plan I GPA 11-09/ZC 11-04IMP 10-01/CT 11-04/SUP 11-04/lIMP 11-07/HDP 11-04" dated November 28, 2011 Plan Check Comments #1 December 20, 2011 I Comment 35: The pre-project condition for this development must be based on the topography shown on the approved reclamation grading plan DWG 470-5A. Please revise the statement on Page 2 of the SWMP report, stating that the pre-project condition is based on the site topography created from aerial photography dated 2006 by Project Design Consultants. Response: Pursuant to a meeting with the City of Carlsbad on December 14, 2011, it I was determined that specific to this project, the Hanson Reclamation Condition is a manufactured condition, and not representative of the watershed runoff historically ' discharged to the downstream channels. In this instance, the pre-project condition is more appropriate to be based on the site topography dated 2006. The Storm Water Management Plan (SWMP) has been updated to include discussion as to the reason it is I appropriate to use the historical topography for the pre-project hydromodification analysis as opposed to the mass graded (reclamation) condition topography. I Comment 36: The discharge point of the Lot 9 bio-retention basin (treatment BMP for portions of Lot 4) appears to be downstream of POC2 (point of compliance 2) as shown on the SWMP exhibits. Please revise location of point of compliance to include all runoffs from the eastern 1 portion of Lot 4. I Response: The analysis and report have been revised to include an additional POC at the location of the discharge point from the Lot 9 bio-retention basin, labeled EDB 2-4 on the SWMP exhibit. U Comment 37: On page 10, under identification of receiving waters, it is indicated that an exhibit titled "Hydrologic Unit for Quarry Creek" has been provided in Appendix B. However, I Appendix B contains only the HMP applicability determination matrix. Response: The SWMP has been revised to include the exhibit titled "Hydrologic Unit for Quarry Creek" in Appendix B. I/Prepared By: DCB:SL:vsfReportJ16483.003 Rick Engineering Company - Water Resources Division ii 10-19-11 Revised: 12-20-11 i S Revised: 3-12-12 I I Comment 38: On page 18, the table showing treatment BMP sizing shows impervious areas for each drainage management area (DMA). Please provide impervious area calculations. The impervious area calculations must be based on the ultimate land use of each DMA. Response: Please refer to Appendix D of the SWMP for impervious area calculations. I The impervious area calculations are shown in the table titled "Land Use Combination Parameters - Post-project" and are based on the ultimate land use of each DMA. I Comment 39: The project uses a 0.5Q2 threshold for SDHM analysis to comply with hydromodfIcation requirements. Page 22 of the SWMP report indicates that a SCCWRP report I has been prepared by Chang Consultants to justify. the use of the lower flow threshold in the continuous simulation analysis. The City did not receive the SCCWRP report during this submittal. Please include in the next review submittal package. Response: Per Chang Consultants, the SCCWRP will be submitted in the next review I submittal package. - Comment 40: The water quality drawdown time calculations were not provided in the SWMP report. Please add drawdown time calculations for each proposed bio-retention basin in the I revised SWMP report. I Response: The SWMP has been revised to include drawdown time calculations for each proposed bioretention extended detention facility. These calculations are included in Appendix C of the revised report. I Comment 41: Please complete the applicant information and signature block on page 3 of the Storm Water Standard Questionnaire (Form E-34). I Response: The SWMP has been revised to include a completed signature block on page 3 of the Storm Water Standard Questionnaire (Form E-34). I I I I I I Prepared By: DCB:SL:vs/ReportJ16483.003 Rick Engineering Company - Water Resources Division ii 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I DCB:SL:vs/Reportl 16483.003 10-19-11 Revised: 12-20-11 Revised: 3-12-12 Prepared By: Rick Engineering Company - Water Resources Division 1. INTRODUCTION This Storm Water Management Plan (SWMP) summarizes the post-construction storm water requirements for the Quarry Creek project (herein referred to as "the project"). The project is located east of Interstate 5, south of Plaza Drive, and west of College Boulevard in the City of Carlsbad, and boarders the City of Oceanside. See the Vicinity Map at the end of Section 1.0 for the location of the project. The project proposes to prepare previously mass graded lots into developable pads zoned for residential units consisting of medium and high density housing, public use areas including a park and ride, a community facility site and nature education center, and park and open space areas. The first phase of the project includes grading the pads, construction of the major public roads and utilities, and grading of the Low Impact Development (LID) facilities associated with construction of the major roads. This SWMP addresses post- construction storm water management based on the land use zoning, however several of the lots will ultimately be sold to future developers and it will be the responsibility of the future developers to prepare site specific SWMPs. For the purposes of post-construction storm water quality management, the project will follow the guidelines and requirements set forth in the City of Carlsbad's "Standard Urban Storm Water Management Plan (SUSMP)," adopted January 14, 2011 (herein "SUSMP"). A copy of the City of Carlsbad Storm Water Standards Questionnaire (SWSQ) for the project is located in Appendix A of this SWMP. Based on the SWSQ, the project is a "Priority Development Project." The following Priority Development Project category applies to the project: "Housing subdivisions of 10 or more dwelling units," "Commercial - greater than 1-acre", "Environmentally Sensitive Area (ESA)", "Parking lot", "Streets, roads, highways, and freeways," and "More than 1-acre of disturbance." In accordance with the Municipal Permit and final hydromodification management plan (HMP) dated March 2011, Section 2 of the SUSMP states that projects subject to Priority Development Project requirements might be required to implement measures so that post-development runoff rates and durations do not exceed pre-project conditions (hydromodification controls). According to Figure 2-1, HMP Applicability Determination Matrix, in the SUSMP, the Quarry I i I i I I 1 I I I I I Creek project is subject to the final I-IMP. Therefore, a hydromodification management strategy I has been developed for the project and is discussed in more detail in Section 5.0 of this report. A copy of the HMP Applicability Determination Matrix is located in Appendix B. R In the pre-project condition, storm water runoff from the site discharges to a tributary of Buena I Vista Creek as well as directly to Buena Vista Creek and flows westerly to Buena Vista Lagoon and ultimately discharges to the Pacific Ocean. The proposed site will maintain drainage I patterns similar to the pre-project condition hydrologic characteristics, therefore storm water runoff from the proposed site will discharge to Buena Vista Creek and flow westerly to Buena Vista Lagoon and ultimately discharge to the Pacific Ocean. I For the purposes of the SWMP the project is defined by five major drainage basins and Points of Compliance (POC). Runoff from four of the drainage basins flows to Buena Vista Creek. Runoff I from the fifth drainage basin flows to a tributary of Buena Vista Creek and confluences with Buena Vista Creek downstream of the project. Buena Vista Creek travels in a westerly direction to Buena Vista Lagoon and ultimately discharges to the Pacific Ocean. The following provides a description of the drainage characteristics for the pre-project and post- project conditions. 1.1 Pre-Project Condition For the purposes of the SWMP, the pre-project condition is based on site topography created from aerial photography dated September 2006 by Project Design Consultants. The Municipal I Permit requires Priority Development Projects to manage increases in runoff discharge rates and durations which are likely to cause erosion, sediment pollutant generation, or other impacts to J beneficial uses and stream habitat. Historically, the channels to which the project discharges have been responding to the natural watershed characteristics that existed prior to the site being J mass graded. The mass graded condition (Hanson Reclamation Condition) is a manufactured condition which does not accurately represent the watershed that formed the downstream I channels. In order to comply with the intent of the Municipal Permit, the post-project condition should be compared to the natural watershed characteristics to which the receiving channels have I Prepared By: DCB:SL:vsfReportJ1483.003 Rick Engineering Company - Water Resources Division 2 10-19-11 Revised: 12-20-11 I Revised: 3-12-12 I I been responding. Therefore, in this case it is more appropriate to use the historical topography I for the pre-project hydromodification analysis as opposed to the mass graded condition (Hanson Reclamation Condition) topography. POC-1 I Basin 1 consists of the northeastern portion of the project which drains in a southerly direction to Buena Vista Creek. Refer to the exhibit titled "Quarry Creek Pre-Project Land Use Information" I located in Appendix D for the location of each drainage basin and Point of Compliance. The drainage basins are labeled according to the POC to which it discharges. Basin 1 discharges to I POC 1. In the pre-project condition, Basin 1 is approximately 14.3 acres. Land uses in the basin are comprised of a mining site which consists of undeveloped areas of dirt and grass. There is an I existing storm drain that conveys offsite low-flows through Basin 1. The existing storm drain currently includes a low-flow pipe and swale which provide a minor amount of water quality treatment for runoff from an offsite watershed located north of the project. I POC-3-2 Basin 3-2 consists of the northwestern portion of the project which drains in a southerly direction to Buena Vista Creek. Basin 3-2 discharges to POC 3-2. In the pre-project condition, Basin 3-2 is approximately 13.2 acres. Land uses in the basin are comprised a mining site which consists of undeveloped areas of dirt and grass. I Basin 3-3 is in the southeastern portion of the project which drains in a northerly direction to I Buena Vista Creek. Basin 3-3 discharges to POC 3-3. In the pre-project condition, Basin 3-3 is approximately 6.6 acres. Land uses in the basin are comprised of a mining site which consists of 1 undeveloped areas of dirt and grass. There is an existing storm drain that conveys offsite low- flows through Basin 3-3. The existing storm drain currently includes a low-flow pipe and swale which provides a minor amount of water quality treatment for runoff from an offsite watershed located south of the project. I POC-3-7 I Prepared By: DCB:SL:vsfReportJ16483.003 Rick Engineering Company - Water Resources Division 3 10-19-11 Revised: 12-20-11 I Revised: 3-12-12 I Basin 3-7 is in the southeastern portion of the project which drains in a northerly direction to ' Buena Vista Creek. Basin 3-7 discharges to POC 3-7. In the pre-project condition, Basin 3-7 is approximately 2.0 acres. Land uses in the basin are comprised of a mining site which consists of undeveloped areas of dirt and grass. I POC-4 Basin 4 is in the southern central portion of the project which drains in a northerly direction to J Buena Vista Creek. Basin 4 discharges to POC 4. In the pre-project condition, Basin 4 is approximately 26.4 acres. Land uses in the basin are comprised of undeveloped areas of dirt and grass. I Basin 5 consists of the southwest portion of the project which drains in a southerly direction to an existing open channel that flows westerly and confluences with Buena Vista Creek downstream of the project site. Basin 5 discharges to POC 5. In the pre-project condition, Basin f 5 is approximately 12.8 acres. Land uses in the basin are comprised of undeveloped areas of grass. - Please refer to the exhibit titled "Quarry Creek Pre-Project Land Use Information" located in I Appendix D for the location of each drainage basin and Point of Compliance. The drainage basins are labeled according to the POC to which it discharges. I 1.2 Post-Project Condition The first phase of the project includes grading the pads, construction of the major public roads and utilities, and grading of the Low Impact Development (LID) facilities associated with major roads being built as part of the first phase of construction. LID facilities have been preliminarily sized for the ultimate condition but may not be constructed as part of the first phase. In the post- project condition, drainage will be conveyed through a network of storm water management features for Priority Development Project LID requirements, water quality treatment, and $ hydromodification management prior to outletting to proposed storm drain outfalls. I Prepared By: DCB:SL:vs!ReportJ16483.003 Rick Engineering Company - Water Resources Division 4 10-19-11 Revised: 12-20-11 1 Revised: 3-12-12 I •0 I I Basin 1 is located in the northern area of the project and includes a small area of offsite runoff in addition to runoff from Lot 1, part of Lot 6, portions of Haymar Drive and Private Drive "C". I Runoff will be directed to a bioretention extended detention treatment basin which outlets to POC 1. Basin 1 is approximately 14.3 acres. Land uses in the basin are comprised of high density residential and major streets. POC-3-2 Basin 3-2 is also located in the northern area of the project and includes runoff from Lot 2, part of Lot 6, Lot 11 and Street "B". Runoff will be directed to a bioretention extended detention treatment basin which outlets to POC 3-2. Basin 3-2 is approximately 13.2 acres. Land uses in the basin are comprised of a park, high density residential and major streets. i POC-3-3 Basin 3-3 is located in the southeastern area of the project and includes runoff from Lot 3. I Runoff will be directed to a bioretention extended detention treatment basin located northwest of the intersection of Street A and B which outlets to POC 3-3. Basin 3-3 is approximately 7.0 acres. Land uses in the basin are comprised of medium-high residential. I Basin 3-7 is located in the southeastern area of the project and includes runoff from Lot 7. I Runoff will be directed to a bioretention extended detention treatment basin located within Lot 7 which outlets to POC 3-7. Basin 3-7 is approximately 2.0 acres. Land use in the basin is I comprised of a community facility site. I Basin 4 is located in the southern central area of the project and includes runoff from the eastern portion of Lot 4, Lot 8, Lot 9 and Street "A". Runoff will be directed to a bioretention extended detention treatment basin which outlets to POC 4. Basin 4 is approximately 26.6 acres. Land uses in the basin are comprised of medium-high residential and public use trails and parks. I I Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vs/ReportI16483.003 5 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I Basin 5 is located in the southwest area of the project and includes runoff from the western portion of Lot 4, Lot 5, and Lot 10. Runoff will be directed to a bioretention extended detention I treatment basin which outlets to POC 5. Basin 5 is approximately 12.1 acres. Land uses in the basin are comprised of medium-high residential and a public use park. Please refer to the Storm Water Management Plan exhibit located in Appendix E for the location I of each drainage basin and Point of Compliance. The drainage basins are color coded and labeled according to the POC to which it discharges. - In the post-project condition, peak flow and duration controls will be provided so as not to I exceed pre-project peak flows and durations as required by the Final HMP. There will be a number of storm water management features working to provide peak flow rate and duration I controls, including open channel swales and basins. The preliminary estimate of volumes needed for hydromodificatioñ and water quality treatment for each drainage basin is provided in I Attachment D. I Constraints and opportunities for site design and selection of treatment and flow-control facilities have been identified for the project. The majority of the project consists of type D soil which I presents a constraint in the selection of IMPs. Opportunities include utilizing the 50-foot wide building setback and 100-foot wide vegetated buffer zone, non-contiguous sidewalks, open space areas and parks, and incorporating landscape/vegetated areas in the common public use areas of the project. The 50 and 100-foot wide buffer zones present an opportunity as they provide I adequate area for the bioretention extended detention facilities while optimizing the site layout. An integrated LID approach will be utilized to provide a long-term solution to water quality at the project site. This SWMP is also intended to ensure the effectiveness of the BMPs or IMPs $ through proper maintenance that is based on long-term fiscal planning. I I I Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vsfReportl 16483.003 6 10-19-11 Revised: 12-20-11 Revised: 3-12-12 Please refer to the DMA/IMP/BMP exhibit located in Appendix E of this report for locations of the drainage facilities and storm water LID facilities, including tributary drainage areas and flow patterns for the site. 1.3 Offsite Runoff Treatment Additional storm water treatment of offsite flows will be provided at two locations within the project. The project will continue to provide water quality treatment from two existing low-flow storm drain systems. Per the water quality treatment calculations performed by Chang Consultants, the water quality treatment flow rate is 0.89 cubic feet per second (cfs) discharging to POC-1 from an offsite watershed north of the project, and 0.63 cubic feet per second (cfs) discharging to Pe(20) m an offsite watershed located south of the project. The project proposes to ut9 Bio Clean Water Polisher Up Flow Media Filters to provide water quality treat ent for low-flow stormwater runoff from the offsite basins. Details and specification are located in Appendix C. roc,'z Prepared By: DCB:SL:vs/Reportl16483 .003 Rick Engineering Company - Water Resources Division 7 10-19-11 Revised: 12-20-11 I Revised: 3-12-12 MIRACOSTA cOLLEGE VICINITY MAP NN VICINITY MAP NO SCALE Prepared By: DCB:SL:vs/Reportl16483.003 Rick Engineering Company - Water Resources Division 8 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I I I I I I I I I I I I 1 I I I I EL CAMINO COUNTRY CLUB I I I 2.0 IDENTIFICATION OF POLLUTANTS & CONDITIONS OF CONCERN Section 2 of the City of Carlsbad's SUSMP outlines the procedure for the selection of stormwater treatment facilities. The procedure begins with identification of pollutants with type of project/use, followed by identification of watershed and hydrologic unit basin number and receiving waters, list of impaired water bodies per the latest 303(d) List, and summary of primary pollutants of concern. 2.1 Identify Pollutants from the Project Area Table 2-1 of the SUSMP, "Anticipated and Potential Pollutants Generated by Land Use Type" identifies general pollutant categories that are either anticipated or potential pollutants for general project categories. The following general project categories listed in Table 2-1 apply to the project: "Detached Residential Development" and "Streets, Highways & Freeways" categories shall be used to describe the anticipated or potential pollutants for the project. Table 2-1 of the SUSMP is reproduced on the following page, with the Priority Development Project categories applicable to the project highlighted. 1 I I I 1 I I I Prepared By: Rick Engineering Company - Water Resources Division I DCB:SL:vsfReportJ16483.003 9 10-19-11 Revised: 12-20-11 Revised: 3-12-12 Table 2-1. Anticipated and Potential Pollutants Generated by Land Use Type General Pollutant Categories Priority Trash Oxygen Bacteria Project Heavy Organic & Demanding Oil & & Categories Sediments Nutrients - Metals Compounds Debris Substances Grease Viruses Pesticides Detached Residential X X X X X X X Development Attached Residential X X X p(l)p'2 P' x Development Commercial Development p(') p() p(2) x p(S) x p(3) p(5) >100,000 fl? Heavy Industry /Industrial X X X X X X Development >One Acre Automotive X 5 x x Repair Shops Restaurants X X X X Steep Hillside Development >5,000 ft2 Parking Lots pfl) p(l) x x p' x Retail Gasoline X X X X X Outlets Streets, - Highways & X P" X X'4' X P X Freeways X = anticipated P = potential A potential pollutant if landscaping exists on-site. A potential pollutant if the project includes uncovered parking areas. A potential pollutant if land use involves food or animal waste products. Including petroleum hydrocarbons. Including solvents. Source: City of Carlsbad Standard Urban Storm Water Mitigation Plan, 2010. Based on the highlighted rows, the anticipated pollutants from the project include sediments, nutrients, heavy metals, organic compounds, trash & debris, oxygen demanding substances, oil and grease, bacteria and viruses, and pesticides. J Prepared By: Rick Engineering Company - Water Resources Division I DCB:SL:vs/Report116483 .003 10 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I I I I I I I I I I 2.2 Identify Pollutants of Concern in Receiving Waters Based on Section 2 of the SUSMP, to identify pollutants of concern in receiving waters, the I following analysis shall be conducted and reported in the project's SWMP: (1) for each of the proposed project discharge points, identify the receiving water(s), including hydrologic unit I basin number(s), as identified in the most recent version of the "Water Quality Control Plan for the San Diego Basin," prepared by the SDRWQCB; and (2) identify any receiving waters, into I which the developed area would discharge to, included in the "2006 CWA Section 303(d) List of Water Quality Limited Segments" approved by the SWRCB on October 25, 2006. List any and all pollutants for which the receiving waters are impaired. Identification of Receiving Waters According to the "Water Quality Control Plan for the San Diego Basin," dated September 8, 1994, prepared by the SDRWQCB, the project is located in the following hydrologic unit basin: El Salto Subarea in the Buena Vista Creek Hydrologic Area within the Carlsbad Hydrologic Unit. The corresponding hydrologic unit basin number designation is 904.21 (Region '9', Hydrologic Unit '04', Hydrologic Area '2', and Hydrologic Subarea '1'). An exhibit has been I provided in Appendix B of this report titled, "Hydrologic Unit for Quarry Creek" which shows the project location within Hydrologic Unit 904.21. Project runoff discharges to Buena Vista I Creek and ultimately discharges into Buena Vista Lagoon. I Identification of Receiving Water Impairments On October 25, 2006, the SWRCB adopted the "2006 CWA Section 303(d) List of Water I Quality Limited Segments" (2006 303(d) List). According to the 2006 303(d) List, Buena Vista Creek and Buena Vista Lagoon within HIJ 904.21 are identified as an impaired water bodies. I Buena Vista Creek is listed for Selenium and Sediment Toxicity and Buena Vista Lagoon is listed for Indicator Bacteria, Nutrients and Sedimentation/Siltation. I I I Prepared By: DCB:SL:vs/Reportl16483.003 Rick Engineering Company - Water Resources Division 11 10-19-11 Revised: 12-20-11 I Revised: 3-12-12 1 Beneficial Uses of Receiving Water I According to the "Water Quality Control Plan for the San Diego Basin," dated September 8, 1994, prepared by the SDRWQCB the existing beneficial uses of the Buena Vista Creek and I Buena Vista Lagoon are Agricultural Supply (AGR), Industrial Service Supply (IND), Contact Water Recreation (REC1), Non-contact Water Recreation (REC2), Warm Freshwater Habitat (WARM), Wildlife Habitat (WILD), Rare, Threatened or Endangered Species (RARE). I Pollutants of Concern for the Project Based on Table 2 and the 2006 CWA Section 303(d) List of Water Quality Limited Segments, I the following are the project's pollutants of concern: sediments, nutrients, heavy metals, organic compounds, trash and debris, oxygen demanding substances, oil and grease, bacteria and viruses, I and pesticides. The LID design approach and source control BMPs will be utilized to treat these pollutants to the maximum extent practicable (MEP). I I I I LI I I I I I I Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vslReporti16483 .003 12 10-19-11 Revised: 12-20-11 Revised: 3-12-12 U 1 I I I I I 1 I I I 1 I I I I I I I 3.0 SOURCE CONTROL BMPs The term "source control BMP" refers to land use or site planning practices, or structures that aim to prevent urban runoff pollution by reducing the potential for contamination at the source of pollution. Source control BMPs minimize the contact between pollutants and urban runoff. The following discussion identifies the source control BMPs for the project. Table 3-1. Permanent and Operational Source Control Measures Potential Source of Runoff Permanent Source Control BMPs Operational Source Control BMPs Pollutants On-site storm drain Mark all inlets with the words "No Maintain and periodically repaint or replace inlet markings. inlets Dumping! Flows to Bay" or similar. Provide stormwater pollution prevention information to new site owners, lessees, or operators. Maintain storm drain inlets per Fact Sheet SC-44, "Drainage System Maintenance," in the CASQA Stormwater Quality Handbooks at www.cabmphandbooks.com 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." Interior floor Interior floor drains and elevator shaft Inspect and maintain drains to prevent blockages and drains and elevator sump pumps will be plumbed to overflow. shaft sump pumps sanitary sewer. Interior parking State that parking garage floor drains Inspect and maintain drains to prevent blockages garages will be plumbed to the sanitary sewer. and overflow. Need for future Note building design features that Provide Integrated Pest Management information indoor & structural discourage entry of pests. to owners lessees and operators. pest control. Prepared By: DCB:SL:vs/Report/16483 .003 Rick Engineering Company - Water Resources Division 13 10-19-Il Revised: 12-20-11 Revised: 3-12-12 DCB:SL:vs/ReportI16483 .003 14 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I U I Prepared By: Rick Engineering Company - Water Resources Division I 1 U Potential Source of Runoff Permanent Source Control BMPs Pollutants Operational Source Control BMPs Landscape / Final landscape plans will accomplish Maintain landscaping using minimum or no pesticides. Outdoor Pesticide all of the following: Use Maintain buildings and common areas per Fact Sheet SC-41, Preserve existing native trees, shrubs, "Building and Grounds Maintenance," in the CASQA and ground cover to the maximum Stormwater Quality Handbooks at extent possible. www.cabrnphandbooks.com Design landscaping to minimize Provide IPM information to new owners, lessees and irrigation and runoff, to promote operators surface infiltration where appropriate, and to minimize the use of fertilizers and pesticides that can contribute to stormwater pollution. Where landscaped areas are used to retain or detain stormwater, specify plants that are tolerant of saturated soil conditions. Consider using pest-resistant plants, especially adjacent to hardscape. To insure successful establishment, select plants appropriate to site soils, slopes, climate, sun, wind, rain, land use, air movement, ecological consistency, and plant interactions. If the local municipality requires Maintain water features per Fact Sheet SC-72, "Fountain Pools, spas, ponds, pools to be plumbed to the sanitary and Pool Maintenance," in the CASQA Stormwater decorative sewer, place a note on the plans and Quality Handbooks at www.cabmphandbooks.com fountains and other state in the narrative that this water features connection will be made according to local requirements. I I I I I I I Li 1 I 1 Li Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vsfReportJl6483.003 15 10-19-11 Revised: 12-20-11 Revised: 3-12-12 1 1 Potential Source of Runoff Permanent Source Control BMPs Operational Source Control BMPs Pollutants Refuse areas Site refuse will be handled and The following will be implemented: provide supporting detail to what is shown on plans. Provide adequate number of receptacles. Inspect receptacles State that signs will be posted on or regularly; repair or replace leaky receptacles. Keep near dumpsters with the words "Do receptacles covered. Prohibit/prevent dumping of liquid or not dump hazardous materials here" hazardous wastes. Post "no hazardous materials" signs. or similar. Inspect and pick up litter daily and clean up spills immediately. Keep spill control materials available on-site. Handle and dispose of waste per Fact Sheet SC-34, "Waste Handling and Disposal" in the CASQA Stormwater Quality Handbooks at www.cabmphandbooks.com Include a detailed description of Outdoor storage of materials to be stored, storage areas, Store outdoor equipment and materials per Fact Sheets SC- equipment or and structural features to prevent 31, "Outdoor Liquid Container Storage" and SC-3 3, materials pollutants from entering storm "Outdoor Storage of Raw Materials" in the CASQA drains. Stormwater Quality Handbooks at www.cabmphandbooks.com 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 (CalARP) .. Aboveground Storage Tank Uniform Fire Code Article 80 Section 103(b) & (c) 1991 Underground Storage Tank Miscellaneous Avoid roofing, gutters, and trim drain or wash made of copper or other unprotected water: Roofing, metals that may leach into runoff. gutters, and trim Plazas sidewalks Plazas, sidewalks, and parking lots shall be swept regularly and parking lots to prevent the accumulation of litter and debris. Debris from pressure washing shall be collected to prevent entry into the storm drain system. Washwater containing any cleaning agent or degreaser shall be collected and discharged to the sanitary sewer and not discharged to a storm drain. Source. City of Carlsbad Standard Urban Storm Water Mitigation Plan, 2010. I I I I I P1 I I '1 1 1 I I I I I 4.0 INTEGRATED LOW IMPACT DEVELOPMENT (LID) DESIGN STRATEGIES The following discussion addresses requirements of Section 4 of the SUSMP. As listed in the I section, projects subject to Priority Development Project requirements, at minimum, must implement an integrated LID approach to develop and size IMPs or "Alternatives to LID Design," which requires you to show how you satisfy each stormwater objective separately. I The project will implement an integrated LID approach to meet criteria described in the SUSMP. As an approach to Integrated LID design, the following sections will discuss LID strategies for I managing runoff from the project. I 4.1 Optimization of Site Layout The project is proposing to grade lots and construct utilities and roads upon previously mass I graded lots. The project is designed to provide a 50-foot building setback as well as a 100-foot vegetated buffer area in between the development and Buena Vista Creek and the wetland I preserve. Therefore, the project is building upon less sensitive areas of the site and is minimizing disturbance of natural areas. The vegetated buffer will also provide an area where drainage can be used as a design element to incorporate the proposed IMP facilities. I Wherever feasible, landscape and vegetated areas will be utilized to minimize directly connected impervious areas. In order to maximize canopy interception and water conservation, the project I will provide native or drought tolerant vegetation for proposed landscape areas and include trees for canopy interception. 4.2 Use of Pervious Surfaces I Where feasible future development within each of the lots within the project will incorporate pervious surfaces throughout the project in accordance with City of Carlsbad requirements. I I Prepared By: DCB:SL:vsfReport/16483.003 Rick Engineering Company— Water Resources Division 16 10-19-11 Revised: 12-20-11 I Revised: 3-12-12 DCB:SL:vs/Report/16483.003 17 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I Prepared By: Rick Engineering Company - Water Resources Division I 4.3 Dispersal of Runoff to Pervious Areas Where feasible, the project site shall incorporate landscaping areas on the site that collect runoff from impervious surfaces prior to collection into the storm drain system. Sidewalks and walkways may be designed as non-contiguous within the future lots, thereby allowing sidewalk runoff to flow across vegetated areas prior to conveyance within the street. 4.4 Use of Integrated Management Practices The term "Integrated Management Practice" (IMP) refers to a facility that provides small-scale treatment, retention, and/or detention and is integrated into site layout, landscaping and drainage design. Following tables of the City SUSMP have been evaluated to determine appropriate IMPs for treatment of runoff potentially containing most pollutants of concern. The tables are renamed as Table 6-1 and 6-2 and reproduced below. Table 4-1. Grouping of Potential Pollutants of Concern by Fate during Stormwater Treatment *Bioretcntion Infiltration Trash Pollutants of Extended Dtt&ntion settling Basins Wet Ponds Facilities or Media High-rate High-rate media Racks & Hydro- Concern Facilities (Dry Ponds) and Wetlands Practices Filters biofilters filters dynamic (LID) 1-ID' ' / Devices Coarse Sediment and High High High High High High *High High Trash Pollutants that tend to associate with fine particles high High High High High Medium *MLdiulTi Low during treatment Pollutants that tend to be dissolved Mediuñi Low Medium High Low Low *Low Low following treatment Source: City of Carlsbad Standard Urban Storm Water Mitigation Plan, 2010. Bioretention Extended Detention Facilities are proposed for treatment of onsite runoff from the Quarry Creek project. However, offsite low-flows from two adjacent watersheds are proposed to be treated using High-rate media filters. I I I I [1 Li Ii 1 L L1 I I I I I I I I I I I I I I I I I I I I I I I I I I Table 4-2. Groups of Pollutants and Relative Effectiveness of Treatment Facilities Pollutant 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 Source: City of Carlsbad Standard Urban Storm Water Mitigation Flan, IUI U. The following IMPs are considered appropriate for treatment of runoff potentially containing most pbllutants of concern: Bioretention Extended Detention facilities, which can be configured as swales, free-form areas, or planters to integrate with your landscape design - SELECTED Flow-through planters, which can be used near building foundations and other locations where infiltration to native soils is not desired - Not Selected Dry wells, which can be used only where soils are permeable - Not Selected Cisterns, in combination with a bioretention facility - Not Selected Prepared By: DCB :SL:vs/Report'16483 .003 Rick Engineering Company - Water Resources Division 18 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I 1 I Prepared By: Rick Engineering Company - Water Resources Division DCB :SL:vsfReportI16483 .003 19 10-19-11 Revised: 12-20-11 Revised: 3-12-12 In order to determine the most appropriate ilviP (or combination thereof) for the project, several design alternatives were considered, including locating bioretention areas within the parkway for the street and utilizing pervious pavement within the street and for the Park and Ride. The necessary areas required to treat the runoff from the project made utilizing the parkway for bioretention difficult to achieve. The most practical location for an IMP the 50-foot building setback and 100-foot vegetated buffer areas previously discussed. These areas provide adequate space and optimize the project site layout. Therefore bioretention extended detention basins in these areas are the most suitable IMP for the project. A summary of the treatment basin surface area as a ratio of the impervious area for each basin is provided in the table below. Refer to the table titled "Land Use Combination Parameters - Post-project" in Appendix D for the impervious area calculations. Quarry Creek Impervious Area vs Treatment Surface Area Extended Treatment Ratio of Treatment Basin POC Detention Impervious Basin Surface Area to Impervious Basin Area (ac) Surface Area Area (ac) POC 1 EDB 1 8.6 0.72 0.08 POC 3-2 EDB 3-2 9.6 0.66 0.07 POC 3-3 EDB 3-3 4.7 0.45 0.10 POC 3-7 EDB 3-7 0.7 0.03 0.04 POC 4 EDB 4 19.5 1.4 0.07 POC 5 EDB 5 9.3 0.66 0.07 I LI I I I LI I 1 I I I 1 I 1 LI 5.0 HYDROMODIFICATION In accordance with the Municipal Permit and final hydromodification management plan (HIvIP) dated March 2011, Section 2 of the SUSMP states that projects subject to Priority Development Project requirements might be required to implement measures so that post-development runoff rates and durations do not exceed pre-project conditions (hydromodification controls). The following methods may be used to meet HMP mitigation requirements: Design BMPs pursuant to standard sizing and specification criteria detailed in the SUSMP and the HMP/LID Sizing Calculator, use the automated sizing calculator (San Diego Sizing Calculator) that will allow project applicants to select and size IMP treatment devices or flow control basins, use a continuous simulation model to compare pre-project and mitigated post-project runoff and durations until compliance to flow control standards can be demonstrated, or identify a specified exemption defined in the SUSMP and final HMP. According to Figure 2-1, HMP Applicability Determination Matrix, in the SUSMP, the Quarry Creek project is subject to the final HIvIP. Therefore, a hydromodification management strategy has been developed for the project. The project will use a network of storm water management features that have been sized based on IMP and BMP sizing approach for hydromodification management. The continuous simulation model, the San Diego Hydrology Model (SDHM) from Clear Creek Solutions was used to compare pre-project and mitigated post-project runoff and durations to comply with flow control standards as defined in the final HMP. 5.1 MODELING METHODOLOGY Based on the final HMP, a range of runoff flow rates was required to be determined to identify the range for which Priority Development Project (PDP) post-project runoff flows and durations shall not exceed pre-project runoff flows and durations. In order to meet this requirement, results of a hydromodification management analysis must meet the following criteria: . For flow rates between the pre-próject lower flow threshold and the pre-project 10-year event, the post-project discharge rates and durations may not deviate above the pre-project Prepared By: DCB:SL:vsfReportl16483 .003 Rick Engineering Company - Water Resources Division 20 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I I I I I Li I I I I I I I rates and durations by more than 10% over more than 10% of the length of the flow duration I curve. . Lower flow thresholds may be determined using the HMP Decision Matrix along with a I critical flow calculator and channel screening tools developed by the Southern California Coastal Water research Project (SCCWRP). These methods identify lower flow thresholds I for a range of channel conditions. The critical flow calculator recommends a lower flow value of 0.1 Q2, 0.3Q2, or 0.5Q2 dependent on the receiving channel material and I dimensions. This value will be compared to the channel susceptibility rating (High, Medium, or Low) as determined from the SCCWRP screening tools to determine the final lower flow 1 threshold. . The lower flow threshold may alternately be determined as 10 percent of the pre-project 2- year runoff event, or 0.1 Q2. This approach, which is outlined in the HItvIP Decision Matrix, is available if the project applicant chooses not to complete the channel screening analysis. - The continuous simulation modeling for this project was performed using the San Diego 1 Hydrology Model (SDHM) from Clear Creek Solutions. The release date for the version of SDHM utilized for the project is March 1, 2012. SDHM was used to analyze the proposed I project for compliance with the Final Hydromodification Management Criteria. The software is capable of modeling hydromodification management (flow control) facilities to mitigate the I effects of increased runoff from the post-project land use changes that may cause negative impacts (i.e. erosions) to downstream channels. I Standards developed as part of the final HMP to control runoff peak flows and durations are I based on a continuous simulation of runoff using local rainfall data. SDHM is based on actual recorded precipitation data. The rainfall gauge selected for this project was the Oceanside gauge, I which represents the project appropriately based on isopluvial and precipitation zone characteristics and has hourly data for the period of record of 1949 to 2007. I The program is a continuous simulation program accounting for all storm events, which differ from typical methods of using the peak from a single storm event (i.e. 100-year). SDHM uses II I Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vs/ReportJ16483.003 21 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I the Hydrologic Simulation Program Fortran (HSPF) software as its computational engine to run rainfall-runoff algorithms. I Partial Duration The peak flow frequency statistics (i.e. Q2 and Q1O) estimates how often flow rates will exceed a I given threshold. There. are two common methods to determine the frequency of recurrence of flood data: annual maximum series, or partial duration series. The annual maximum series I selects the highest peak discharge in one year. The partial duration series considers multiple storm events in a given year. According to the Final HMP, the need for partial duration statistics is more pronounced for control standards based on more frequent return intervals (such as the 2- year runoff event) since the peak annual series does not perform as well in the estimation of such I events. The use of a partial duration series is recommended for semi-arid climates similar to San Diego County, where prolonged dry periods can skew peak flow frequency results determined by a peak annual series for more frequent runoff events. The partial duration series provides better resolution for assigning recurrence intervals to events that occur more frequently than once per 10 years, which are the events that are most important for the HMP. SDHM (November 11, 2011 version) defaults to compute peak flow frequency statistics by constructing a partial I duration series. For the statistical analysis of the rainfall record, partial duration series events have been separated into discrete rainfall events assuming the following criteria. I To determine a discrete rainfall event, a lower flow limit was set to a very small value, equal I to 0.002 cfs per acre of contributing drainage area. A new discrete event is designated when the flow falls below 0.002 cfs per acre for a time I period of 24 hours. I Drawdown Time The HMP and/or water quality (WQ) drawdown time is the time it takes for the basin to empty the HMP and/or WQ volume. The SDHM program calculates the HMP drawdown time for the maximum stage that occurs in the basins in continuous simulation. Preliminary Water Quality I draw-down times were estimated using HEC-1. Copies of the draw-down calculations are I Prepared By: DCB:SL:vs/Report/16483.003 Rick Engineering Company - Water Resources DivisiQn 22 10-19-11 Revised: 12-20-11 I Revised: 3-12-12 DCB:SL:vs/ReportJ16483 .003 23 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I Prepared By: Rick Engineering Company - Water Resources Division I included in Appendix C. Additional calculations will be required during final design to verify the WQ draw down timing. 5.2 MODELING RESULTS There are five (5) Points of Compliance (POC) for the project. Therefore, the SDHM analysis is organized accordingly. Each drainage basin will employ similar strategies for compliance with the HMP. Runoff from each basin will be directed to permanent storm water management features in the form of bioretention extended detention facilities which will meet both hydromodification and water quality treatment requirements. Chang Consultants prepared a report titled, "Hydromodification Screening for Quarry Creek," dated December 2011, which summarized the results of a channel screening analysis and determined that the lower flow threshold is 0.5Q2 is appropriate for the Quarry Creek project. Therefore this lower flow threshold was used in the continuous simulation analysis. Summary of Results and SDHM Output The preliminary sizing for required HMP volumes for each drainage basin is summarized in the table below. Quarry Creek - HMP Mitigation Feature Summary Table Extended Q Y 10- r Riser Orifice POC Detention Threshold BL BW Volume Size Ht Diam Basin (cfs) (ac-fl) x Diam (in) (ft x ft) POC 1 EDB 1 0.5Q2 385 35 1.06 3 x 1.5 6 POC 3-2 EDB 3-2 0.5Q2 488 25 1.2 3 x 1.5 5.3 POC 3-3 EDB 3-3 0.5Q2 232 13 0.6 5 x 1.5 3.1 POC 3-7 EDB 3-7 0.5Q2 28 28 0.1 3 x 1.5 2 POC 4 EDB 4 0.5Q2 540 40 2.4 4 x 1.5 7.5 POC 5 EDB 5 0.5Q2 380 48 1.4 4 x 1.5 5.5 I 1 I I I I I I I U I I I I I Support material and individual SDHM output for each drainage basin are included in the SDHM results, located in Appendix D of this report. Please refer Appendix D for summary tables and supporting exhibits utilized in the SDHM analyses for post-project soil, slope, and land use. These exhibits delineate the drainage basin and ID tributary to each point of compliance (POC). The HMP Basins will have adequate volume to provide 85th percentile volume storm water quality treatment for the tributary runoff from the roadways and lots. The preliminary sizing for required water quality volume and flow rates are also included in Appendix C of this report. Prepared By: DCB:SL:vslReport/16483.003 Rick Engineering Company - Water Resources Division 24 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I 1 I I I I I I I I I I I I I I I I I 6.0 DOCUMENTATION OF STORM WATER DESIGN Documentation of drainage basins and location of IMPs is located in Appendix D and on the DMA/IMP/BMP Exhibit in Appendix E of this report. Prepared By:' DCB:SL:vs/Report/16483 .003 Rick Engineering Company - Water Resources Division 25 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I 7.0 OPERATION AND MAINTENANCE The owner of each IMP facility will ensure the ongoing maintenance for the permanent stbrmwater facilities proposed for the project. The owner will be responsible for properly disposing of waste material from, their assumed areas within the project site, maintaining landscaping throughout those areas in a manner that will prevent soil erosion and minimize sediment transport, and maintaining drainage facilities located throughout the project area in a clean manner and in good repair. In addition, the owner will be responsible for maintaining all stormwater facilities Typical Maintenance Procedures for Stormwater Facilities The following stormwater facilities require permanent maintenance: bioretention extended detention facilities. The discussions below provide inspection criteria, maintenance indicators, and maintenance activities for the storm water facilities. Bioretention Extended Detention Facilities . Inspect extended detention facilities at least twice annually for erosion, damage to vegetation, and sediment and debris accumulation, preferably at the start and end of the wet season to be sure the area is ready for winter and to schedule follow-up maintenance, if necessary. Inspection should also occur after periods of heavy runoff to ensure continued functionality of each system (i.e. - 0.5 inch storm events or greater). Grass height and mowing frequency (if appropriate) may not have a large impact on pollutant removal. Consequently, mowing may only be necessary once or twice a year for safety or aesthetics or to suppress weeds and woody vegetation. . Trash tends to accumulate in extended detention facilities. The need for litter removal is determined through periodic inspection, but litter should always be removed prior to mowing. Sediment accumulating in 'extended detention facilities should be removed when it builds up to 75 mm (3 in.) at any spot, or covers vegetation. Prepared By: DCB:SL:vs/ReportJ16483.003 Rick Engineering Company - Water Resources Division 26 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I I I I I I I Li Li I I I I Regularly inspect extended detention facilities for pools of standing water. Extended I detention facilities can become a nuisance and promote mosquito breeding in standing water if obstructions develop (e.g. debris accumulation, invasive vegetation) and/or if proper I .drainage is not implemented and maintained. . Outfall locations that enter or exit facilities should be checked for erosion, ponding, trash/debris, and other structural damage. ' Bio Clean Water Polisher Up Flow Media Filter Inspection/maintenance of the Bio Clean Water Polisher Up Flow Media Filter must be I performed by properly trained personnel. Maintenance may involve handling of potentially hazardous material. Therefore the maintenance operator may need to be properly trained in J handling and disposal of hazardous waste. The party responsible to ensure implementation and funding of maintenance of permanent BMPs will be responsible to select a maintenance contractor for maintenance of the Bio Clean Water Polisher Up Flow Media Filter who meets this requirement, and to contract for additional cleaning and disposal services as necessary if I non-routine cleaning and disposal is required. There are several storm drain cleaning service providers who are able to inspect and/or maintain this product. During inspection, the inspector shall check for the maintenance indicators given below: I • Accumulation of sediment, litter and/or debris. Spent filter media cartridges. When the media is spent it is typically indicated by a I change in color of the material. Damage to internal components within the product. I Routine maintenance of the Bio Clean Water Polisher Up Flow Media Filter shall include I removal and proper disposal of accumulated materials (e.g., sediment, litter) from the product and replacement of the media cartridges. If inspection indicates that internal components within the product are damaged, additional non- routine maintenance will be required to repair or replace the damaged parts as applicable. The party responsible to ensure implementation and funding of maintenance of permanent BMPs Prepared By: . DCB:SL:vsfReporti16483.003 Rick Engineering Company - Water Resources Division 27 10-19-11 Revised: 12-20-11 I Revised: 3-12-12 I shall contract for additional cleaning and disposal services as necessary if non-routine cleaning and disposal is required. In addition to the stormwater facilities intended as part of the IMP design, the following identifies additional LID and source control BMPs that required routine inspection and maintenance: ' Landscaped Areas Inspection and maintenance of the vegetated areas may be performed by the landscape maintenance contractor. 1 During inspection, the inspector shall check for the maintenance indicators given below: . Erosion in the form of rills or gullies Ponding water Bare areas or less than 70% vegetation cover Animal burrows, holes, or mounds Trash Routine maintenance of vegetated areas shall include mowing and trimming vegetation, and removal and proper disposal of trash. If erosion, ponding water, bare areas, poor vegetation establishment, or disturbance by animals are identified during the inspection, additional (non-routine) maintenance will be required to correct the problem. For ponding water or erosion, see also inspection and maintenance measures for irrigation systems. In the event that any non-routine maintenance issues are persistently encountered such as poor vegetation establishment, erosion in the form of rills or gullies, or ponding water, the party responsible to ensure that maintenance is performed in perpetuity shall consult a licensed landscape architect or engineer as applicable. I 1 Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vs/ReportJ16483 .003 28 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I i As applicable, IPM procedures must be incorporated in any corrective measures that are I implemented in response to damage by pests. This may include using physical barriers to keep pests out of landscaping; physical pest elimination techniques, such as, weeding, squashing, I trapping, washing, or pruning out pests; relying on natural enemies to eat pests; or proper use of pesticides as a last line of defense. More information can be obtained at the UC Davis website (http://www.ipm.ucdavis.edu/WATERIU/index.html). I Concrete Stamping Inspection and maintenance of the concrete stamping may be performed by the building/facilities I maintenance contractor or other employees of the project owner, as applicable. In addition, there may be storm drain maintenance contractors who will perform this service for a fee. During inspection, the inspector(s) shall check for the maintenance indicators given below: I . Faded, vandalized, or otherwise unreadable concrete stamping I There are no routine maintenance activities for the concrete stamping. If inspection indicates the concrete stamping is intact, no action is required. If inspection indicates the concrete stamping is not legible, the concrete stamping shall be $ repaired or replaced as applicable. 1 Irrigation Systems Inspection and maintenance of the irrigation system may be performed by the landscape maintenance contractor. 1 During inspection, the inspector shall check for the maintenance indicators given below: . Eroded areas due to concentrated flow I . Ponding water . Refer to proprietary product information for the irrigation system for other maintenance I I indicators, as applicable Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vs/Reporti 16483.003 29 10-19-11 Revised: 12-20-11 Revised: 3-12-12 Refer to proprietary product information for the irrigation system for routine maintenance activities for the irrigation system, as applicable. If none of the maintenance indicators listed above are identified during inspection of the irrigation system, no other action is required. If any of the maintenance indicators listed above are identified during the inspection, additional (non-routine) maintenance will be required to restore the irrigation system to an operable condition. If inspection indicates breaks or leaks in the irrigation lines: or individual sprinkler heads, the affected portion of the irrigation system shall be repaired. If inspection indicates eroded areas due to concentrated flow from the irrigation system, the eroded areas shall be repaired and the irrigation system shall be adjusted or repaired as applicable to prevent further erosion. If inspection indicates ponding water resulting from the irrigation system, the irrigation system operator shall identify the cause of the ponded water and adjust or repair the irrigation system as applicable to prevent ponding water. Refer to proprietary product information for the irrigation system for other non-routine maintenance activities as applicable. Inspection and Maintenance Frequency Typically, maintenance requirements are site and product specific, and will depend on the particular land use activities and the amount of gross pollutants and sediment generated within the drainage areas. If it is determined during the regularly scheduled inspection and routine maintenance that the BMPs/IMPs require more frequent maintenance to remove accumulated sediment, trash or debris, it may be necessary to increase the frequency of inspection and routine maintenance. The Table on the following page lists the stormwater facilities to be inspected and maintained and the minimum frequency of inspection and maintenance activities. Prepared By: DCB:SL:vs/Report/16483.003 Rick Engineering Company - Water Resources Division 30 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I Table 7-1. Summary Table of Inspection and Maintenance Frequency (Minimum) BMP I IMP Inspection Maintenance Frequency Frequency Bioretention Extended Twice a year, Routine maintenance to remove accumulated materials such as trash and after major and debris: twice a year, on or before September 30th As-needed Detention Facilities storm events maintenance based on maintenance indicators in this section Bio Clean Water Polisher Twice a year, Routine maintenance to remove accumulated materials and replace media cartridges: twice a year, on or before September 30th Up Flow Media Filter and after major As-needed maintenance based on maintenance indicators in this (treatment control BMP) storm events section Routine mowing and trimming and trash removal: monthly Landscaped Areas Monthly Non-routine maintenance as-needed based on maintenance indicators in this section Concrete Stamping Annual As-needed based on maintenance indicators in this section Irrigation Systems Monthly As-needed based on maintenance indicators in this section Qualifications of Maintenance Personnel The LID and treatment control BMPs or IMPs are features that are integrated into site layout, landscaping and drainage design. The typical maintenance activities for landscaped areas and bioretention extended detention facilities can generally be accomplished by typical landscape maintenance personnel. The contracting of additional services may be necessary if non-routine cleaning, disposal or repair is required for any of the project's storm water facilities. If evidence of illegal dumping of hazardous materials is identified in a storm water facility, the illegally dumped materials shall be cleaned up and disposed of properly. Specialized clean up and disposal of illegally dumped hazardous materials may be outside of the owner expertise. In this event, the owner shall contract for additional cleaning and disposal services as necessary if non-routine cleaning and disposal is required. Record Keeping Requirements The owner is responsible to ensure implementation and funding of maintenance of permanent BMPs and shall maintain records documenting the inspection and maintenance activities. Parties responsible for the operation and maintenacne shall retain records for at least 5 years. Prepared By: DCB:SL:vs/Reportl16483.003 Rick Engineering Company - Water Resources Division 31 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I II I Ii I I I 8.0 SWMP CERTIFICATION STATEMENTS Preparer's Certification The selection, sizing, and preliminary design of storm water treatment and other control measures in this plan meet the requirements of Regional Water Quality Control Board Order R9- 2007-0001 and subsequent amendments. Dennis C. Bowling Date R.C.E #32838, Exp. 06/12 I Future Owner's Certification I certify that, as owner of the property described herein, I have read and understand the requirements of this Storm Water Management Plan (SWMP) and that I am responsible for ensuring that all storm water treatment measures described within said SWMP will be properly 1 implemented, monitored and maintained. I TO BE COMPLETED BY P UTURE LOT OWNERS I I I I Company: Address: Address: Phone No: Date: I I 11 Prepared By: Rick Engineering Company - Water Resources Division DCB:SL:vsfReportJ16483 .003 32 10-19-11 Revised: 12-20-11 Revised: 3-12-12 APPENDIX A I City of Carlsbad I Storm Water Standards Questionnaire (SWSQ) L] I I I I I I I I I Iii I Prepared By: Rick Engineering Company - Water Resources Division I DCB:SL:vsfReport/16483 .003 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I [] t:? \: CITY OF CAR"LSBAD STORM WATER STANDARDS QUESTIONNAIRE E-34 Development Services Land Development Engineering 1635 Faraday Avenue 760-602-2750 www.carlsbadca.gov INSTRUCTIONS: To address post-development pollutants that may be generated from development projects, the City requires that new development and significant redevelopment priority projects incorporate Permanent Storm Water Best Management Practices (BMP's) into the project design per the City's Standard Urban Stormwater Management Plan (SUSMP). To view the SUSMP, refer to the Engineering Standards (Volume 4, Chapter 2) at www.carlsbadca.govlstandards. Initially this questionnaire must be completed by the applicant in advance of submitting for a development application (subdivision, discretionary permits and/or construction permits). The results of the questionnaire determine the level of storm water standards that must be applied to a proposed development or redevelopment project. Depending on the outcome, your project will either be subject to Standard Stormwater Requirements' or be subject to additional criteria called 'Priority Development Project Requirements'. Many aspects of project site design are dependent upon the storm water standards applied to a project. Your responses to the questionnaire represent an initial assessment of the proposed project conditions and impacts. City staff has responsibility for making the final assessment after submission of the development application. If staff determines that the questionnaire was incorrectly filled out and is subject to more stringent storm water standards than initially assessed by you, this will result in the return of the development application as incomplete. In this case, please make the changes to the questionnaire and resubmit to the City. I If you are unsure about the meaning of a question or need help in determining how to respond to one or more of the questions, please seek assistance from Land Development Engineering staff. A separate completed and signed questionnaire must be submitted for each new development application submission. I Only one completed and signed questionnaire is required when multiple development applications for the same project are submitted concurrently. In addition to this questionnaire, you must also complete, sign and submit a Project Threat Assessment Form with construction permits for the project. Please start by completing Section 1 and follow the instructions. When completed, sign the form at the end and submit this with your application to the city. ISECTIONi , NEWPEVEORMENT Does your project meet one or more of the following criteria: YES NO Housing subdivisions of 10 or more dwelling units. Examples: single family homes, multi-family homes, condominium and apartments Commercial - greater than 1-acre. Any development other than heavy industry or residential. Examples: hospitals: laboratories and other medical facilities; educational institutions; recreational facilities: municipal facilities; commercial nurseries; multi-apartment buildings: car wash facilities; mini-malls and other business complexes: shopping malls; hotels; office buildings; public warehouses; automotive dealerships; airfields; and other light industrial facilities. Heavy Industrial / Industry- greater than I acre. Examples: manufacturing plants, food processing plants, metal working facilities, printing plants, and fleet storage areas (bus, truck, etc.). Automotive repair shop. A facility categorized in any one of Standard Industrial Classification (SIC) codes 5013, 5014, 5541, 7532-7534, and 7536-7539 Restaurants. Any facility that sells prepared foods and drinks for consumption, including stationary lunch counters and refreshment stands selling prepared foods and drinks for immediate consumption (SIC code 5812), where the land area for development is greater than 5,000 square feet. Restaurants where land development is less than 5,000 square feet shall meet all SUSMP requirements except for structural treatment BMP and numeric sizing criteria requirements and hydromodification requirements. E-34 Page 1 of 3 REV 1/14/11 I I I I I I I I I I Ir I I I J i ~Cot 1 T Y OF CAR LSBAD STORM WATER STANDARDS QUESTIONNAIRE - E-34 Development Services Land Development Engineering 1635 Faraday Avenue 760.602-2750 www.carisbadca.gov 6. Hillside development. Any development that creates more than 5,000 square feet of Impervious surface and Is located in an area with known erosive soil conditions, where the development will grade on any natural slope that Is twenty-five percent (25%) or greater. 7.. Enviroymentaliv Sensitive Area (ESA)'. All development located within or directly adjgcenf to or discharging directly4 to an ESA (where discharges from the development or redevelopment will enter receiving waters within the ESA); which either creates 2.500 square feet or more of Impervious surface on a proposed project site or Increases X the area of imperviousness of a proposed project site 10% or more of Its naturally occurring condition. B. Parking to Area of 5,000 square feet or more, or with 15 or more parking spaces, and potentially exposed to urban runoff Streets, roads, highways, and freeways. Any paved surface that Is 5.000 square feet or greater used for the transportation of automobiles, trucks, motorcycles, and other vehicles ______ Retail Gasoline Outlets. Serving more than 100 vehicles per day and greater than 5,000 square feet Coastal Deveiopn7ent Zone. Any project located wIthin 200 feet of the Pacific Ocean and (1) creates more than 2500 square feet of Impervious surface or (2) increases Impervious surface on property by more than 10%. More than 1-acre of disturbance. Project results In the disturbance of 1-act e or more of land and is considered a Pollutant-generating Development Project4. V I Environmentally Sensitive Areas Include but are not Stalled to all Clean Water Act Section 3O3(0) IseParCO water bodies. areas UU5Wfl5IUQ as press Biological Significance by the Sfale Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments); water bodies designated with the RARE beneficial use by the State Water Resources Control Board (Water Quality Control Plan for the San Diego Basin (1994) and amendments); areas designated as preserves or their equivalent under the Multi Spades Conservation Program within the Cities and County of San DIego; and any other equivalent environmentally sensitive areas which have been Identified by the Copermitteec. a Dliec41y adjacent' means situated wIthin 200 feeler the Environmentally Sensitive Arse. . 3'Discharging directly 10 means outflow from a drainage conveyance system that Is composed entirely of flows from the subject development or redevelopment site. and not commingled with flow from adjacent lands.. 4 Pouulanl-gencraling Development Projects are those projects that generate pollutants at levelS greater than background levels. In general, these Include all projects that contribute to an exceedance to an impafred water body or whIch create new Impervious aurtacas greater than 5000 square lest aMVor Introduce new landscaping area; that require routine use of fertilizers and peallr).das. In most cases linear pathway projects that are for Infrequent vehIcle use, such as emergency or maintenance access, or for pbdestttan or bicycle use, are not considered Pollutant-ganeratlng Development Projects If they are built with pervious surfaces or If they sheet flow to surrounding pervious surfaces. INSTRUCTIONS:. Section 1 Results:. S V If you answered YES to ANY of the questions above, your project Is subject to Priority Development Project requirements. Skip Section 2 and please proceed to Section 3. Check the 'meets PRIORITY DEVELOPMENT PROJECT requirements' box In Section 3. Additional storm water requirements will apply per the SLISMP. V If you answered NO to ALL of the quesllona above, then please proceed to Section 2 and follow the Instructions. 1 I I F-Al I E-34 Page 2 of 3 REV 1/14/11 1 I I I I I This Box lo,Oly Ore OW Cit1 Concurrence: LYES J/ NO LJ4JL Dali CITY OF CAR LSBAD STORM WATER STANDARDS QUESTIONNAIRE E-34 Development Services Land Development Engineering 1635 Faraday Avenue 760-02-2750 www.carlsbadca.gov I I a I I I 1 I I I I 1 I I $ I I I I INSTRUCTIONS; Complete the questions below regarding your project YES NO Project results In the disturbance of 1.acre or more of land and is considered a Pollutarit-generaling Development Project'? INSTRUCTIONS: If you answered NO, please proceed to question 2. It you answered YES, then you ARE a sIgnificant redoveiopmeAt and you ARE subject to PRIORITY DEVELOPMENT PROJECT requirements. Please check the'meets PRIORITY DEVELOPMENT PROJECT requirements' box in Section 3 below. Is the project redeveloping an existing priority project type? (Priority projects are defined In Section 1) I INSTRUCTIONS: If you answered YES, please proceed to question 3. It you answered NO, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER REQUIREMENTS Please check the does not meet PDP requirement? box in Section 3 below. Is the work limited to trenching and resurfacing associated with utility work; resurfacing and reconfiguring surface parking lots and existing roadways; new sidewalk; bike lane on existing road and/or routine maintenance of damaged pavement such as pothole repair? Resurfacing/reconfiguring parking lots Is where the work does not expose underlying soil during construction. INSTRUCTIONS: If you answered NO, then proceed to question 4. If you answered YES, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER REQUIREMENTS. Please check the 'does not meet PDP requirement? box in Section 3 below. - Will your redevelopment project create, replace, or add at least 5,000 square feet of impervious surfaces on existing developed property or will your project be located within 200 feet of the Pacific Ocean and (1) create 2500 square feet or more of Impervious surface or (2) increases impervious surface on the property by more than 10%? Replacement of existing Impervious, surfaces includes any activity that Is not part of routine maintenance where impervious material(s) are removed, exposing underlyingsoiI during construction. - INSTRUCTIONS: if you answered YES, you ARE a significant redevelopment, and you ARE subject to PRIORITY DEVELOPMENT PROJECT requirements. Please check the 'meets PRIORITY DEVELOPMENT PROJECT requirements' box in Section 3 below. Review SUSMP to find out if SUSMP requirements apply to your project envelope or the entire project site. If you answered NO, then you ARE NOT a significant redevelopment and your project is subject to STANDARD STORMWATER REQUIREMENTS. Please check the 'does not meet PDP requirements' box in Section 3 below. ,tor aeriniuon see t-oou,ote 4 on page z Nr My project meets PRIORITY DEVELOPMENT PROJECT (PDP) requirements and must comply with additional stormwater criteria per the SUSMP and I understand I must prepare a Storm Water Management Plan for submittal at time of application. i understand flow control (hydromodification) requirements may apply to my project. Refer to SUSMP for details. Li My project does not meet POP requirements and musl only cOmply with STANDARD STORMWATER REQUIREMENTS per the SUSMP. As pad of these requirements, I will Incorporate low Impact development strategies throughout my project. Applicant Information and Signature Sox Address: ,myi 1,he Doi ve Assessor's Parcel Number(s): )(o7-c4tO117-1 -. Applicant Name: Applicant Title: e#itieay Ci5/,JvEsrVk £J - Applicant Sl I to: Date: REV 1/14/11 E-34 Page 30f3 APPENDIX B HMP Applicability Determination Matrix Prepared By: DCB:SL:vs/Reporti16483.003 Rick Engineering Company - Water Resources Division 10-19-11 Revised: 12-20-11 Revised: 3-12-12 SECTION 2 IDENTIFY POLLUTANTS, BMP SIZING AND SELECTION I FIGURE 2-1. HMP Applicability Determination* *refer to expanded HMP exemption criteria below for justifications required on each node 30 City of Carlsbad SUSMP - January 14, 2011 [ii I SECTION 2: IDENTIFY POLLUTANTS, BMP SIZING AND SELECTION 1. Project using -. ..... $CCWRP. Screening Toots HO ..-2. DoBMPs. Include trililtr3tion....110 T Native Soils' YES I- 3. Has Geotech Con1rmed rteer tnitration Rate?..' YES Flow Range of 010 to 0 F3USlI LiDor BMP &vrifV 110 . .DrawdownTirne,;, gqwre pits YES End of Decision Matrix FIGURE 2-2. 2-2. Mitigation Criteria and Implementation I 38 City of Carlsbad SUSMP - January 14, 2011 1 APPENDIX C I Water Quality Treatment Calculations i and Support Materials I I 1 I I I I I I I I I I I Prepared By: Rick Engineering Company - Water Resources Division 1 DCB:SL:vsIReportJ16483.003 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I Quarry Creek Water Quality Treatment Volume Summary Table Provided Extended 85th Weighted C Water Basin Drawdown POC Detention percentile value Area (ac) Quality Volume Time (hr) Basin (in) Volumes (ac-ft) (ac-ft) POC 1 EDB 1 0.65 0.68 14.3 0.527 1.30 15.25 POC 3-2 EDB 3-2 0.65 0.75 13.2 0.536 1.51 22.25 POC 3-3 EDB 3-3 0.65 0.72 7.0 0.273 0.85 20.25 POC 3-7 EDB 3-7 0.65 0.55 2.0 0.060 3.40 11 POC4 EDB4 0.65 0.75 26.6 1.081 0.08 24.5 POC 5 EDB 5 0.65 0.77 12.1 0.505 1.48 21.5 J-16483 10-19-2011 Revised 12-20-2011 Revised 3-13-2012 I I Details and Specifications I Bio Clean Water Polisher Up Flow Media Filter Li I I I I I I I I I [T [ii I I I Prepared By: Rick Engineering Company - Water Resources Division I DCB :SL:vsfReport/16483 .003 10-19-11 Revised: 12-20-11 Revised: 3-12-12 B10 CLEAN WATER POLISHER-UP FLOW MEDIA FILTER 5-10-84 OUTFLOW PIPE MEDIA SURFAC AREA TOTAL = 38.33 SQ F) FIN/SHED SURFACE MANHOLE COVERS7 OW PIPES GREEN BIOMEDIA GREEN TESTED REMOVAL EFFICIENCIES ToM Rvaxbd Saks 'Sü-Co--Si 106 me" moa,vs 707. °Rw*,Ww 42% Uw*a Copp 79% 987. ohedZi,c 787. 71% 91% PH 1007. 997. Food Colfam 1 687. OPTIONAL RISERS HEIGHT MAY VARY BibMedidGREEN IEIN IT 7'-8" 2'-0 " TREATMENT FLOW RATE 5 '0" _O:12 —I.--- 425 CPU or 0.95 CFS — 4) BYPASS FLOW RATE DEPENDENT OF PIPE SIZE VARIES 5'—.-] io—o 5" I..' CAPACITY 150 CUBIC FEET NOTES: CONCRETE 28 DAY COMPRESSIVE STRENGTH fc=5,000 PSI. 5 YEAR MANUFACTURERS WARRANTY REINFORCING: ASTM A-615. PATENTED BI CLEAN 0 ENVIRONMENTAL SERVICES. INC. rinr ,, ALL F7LTER SCREENS ARE STAINLESS STEEL J. SUPPORTS PARKWAY LOADING AS 81c, I INDICATED BY A4SHTO. P0 Bo JOINT SEALANT: BUTYL RUBBER rEL. 760-4: SS—S-00210 ALL WALLS ARE 6 THICK, TOP AND WATER BOTTOM ARE 8 THICK. DATE: 1 2, 8/0 CL&0 WILL SUPPLY LIDS 0 RA PTER 30 MANHOLE COVERS 8/0 CLEAN WATER POLISHER—UP FLOW MEDIA FILTER 4-8-84 I U I I I I I I I I I I I I I I I I I OUTFLOW PIPE MEDIA SURF/i AREA TOTAL = 23.33 SQ F 6" I-I 9'-O" CAPACITY 96 CUBIC FEET NOTES: CONCRETE 26 DAY COMPRESSIVE STRENGTH fc=5,000 PSI. REINFORCING: ASTM A-615, GRADE 60. J. SUPPORTS PARKWAY LOADING AS INDICATED BY A4SHTO. JO/NT SEALANT: BUTYL RUBBER SS-S-00210 ALL WALLS ARE 6 THICK, TOP AND BOTTOM ARE 8 THICK. 8/0 CLEAN WILL SUPPLY LIDS 2W PIPES• BioMecaGREEN BIOMEDIA GREEN TESTED REMOVAL EFFICIENCIES Total SU37d9d SoE,h 'NJ—Co--Si 106 857. row Pho*~ww 707. Oft ftxpbow 427. Aowiv.d Ccppr 79% CodLicd 987. 78% 71% 91% WH 1007. 997. reca Ccãla,m 68% BioMediaGREEN FILTER MED14 OPTI0N4L RISERS HE/C/-IT MAY VARY 7'-O" TREATMENT FLOW RATE 283 CPU or 0.63 CFS 4) BYPASS FLOW RATE DEPENDENT OF PIPE SIZE 'VARIES' 5 YEAR MANUFACTURERS WARRANTY PATENTED •BI CLEAN® ENVIRONMENTAL SERVICES. INC. ALL FILTER SCREENS ARE STAINLESS STEEL I I Water Quality Draw Down Calculations I I I I I I I I Li I I I I I I I Prepared By: Rick Engineering Company - Water Resources Division I DCB:SL:vsfReport/16483.003 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I * FLOOD }iYDROGHAPH PACKAGE (HEC1) * * JUN 1998 * VERSION 4.1 * I RUN DATE 12MAR12 TIME 09:06:00 * **** ** *** ** ** * *** ******** * ** *** **** ** *** I ************************************** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 Li x x xxxxxxx xxxxx x i x x x xx x x x x x xxxxxxx xxxx x xxxxx x x x x x I x x x x xxxxxxx xxxxx xxx I THIS PROGE.AN REPLACES ALL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HEC1 (JAN 73), HEC1GS, HEC1DB, AND HEC1KW. THE DEFINITIONS OF VARIABLES -RTIMP- AND -RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -AMSKX- ON RN-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION I NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND ANPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM I I I I (11 I 1 If LINE *** FREE ic 11 12 13 14 IE *** NEC-i INPUT ID.......1 .......2 .......3 .......4 .......5 .......6 .......7 .......8 .......9 ......10 -DIAGRAM ID QUARRY CREEK ID J-16483 ID POST-PROJECT CONDITION ID WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS ID EXTENDED BIORETENTION BASIN 1 IT 15 01JAN90 1200 500 10 5 1 KK BASIN1 KM SV-SE-SQ RELATIONSHIP FROM SD}{M OUTPUT NO 0 0 0 0 21 RS 1 STOR .527 SV 0 .069 .214 .399 .544 SE 0 0.222 0.667 1.20 1.60 SQ 0 .45 .77 1.04 1.2 zz PAGE 1 I I SCHEMATIC DIAGRAM OF STREAM NETWORK INPUT LINE (V) ROUTING (--->) DIVERSION OR PUMP FLOW I NO. (.) CONNECTOR (<---) RETURN OF DIVERTED OR PUMPED FLOW *** HEC1 ERROR 4 *** NO HYDROGRAPHS AVAILABLE TO ROUTE i B BASIN1 (***) RUNOFF ALSO COMPUTED AT THIS LOCATION 1 ERRORS IN STREAM SYSTEM I I I I I i I I I FLOOD HYDROGRAPH PACKAGE (HEC1) : * JUN 1998 * * VERSION 4.1 * * RUN DATE 12MAR12 TIME 09:0600 * ** **** ******* * ** * * ** ** **** ** *** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 * ************************************** I QUARRY CREEK I) 1 POST-PROJECT CONDITION WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS I EXTENDED BIORETENTION BASIN 1 7 10 OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE I IT HYDROGRAPH TIME DATA NMIN 15 MINUTES IN COMPUTATION INTERVAL IDATE 1JAN90 STARTING DATE * ITIME 1200 STARTING TIME NQ 500 NUMBER OF HYDROGRAPH ORDINATES NODATE 6JAN90 ENDING DATE NDTIME 1645 ENDING TIME ICENT 19 CENTURY MARK COMPUTATION INTERVAL .25 HOURS I TOTAL TIME BASE 124.75 HOURS ENGLISH UNITS DRAINAGE AREA SQUARE MILES I PRECIPITATION DEPTH INCHES LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND ' STORAGE VOLUME ACRE-FEET SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ** ************** 1 8 KR * BASIN1 * 10 KO OUTPUT CONTROL VARIABLES IPP.NT 5 PRINT CONTROL I IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE I PNCH 0 PUNCH COMPUTED HYDROGRAPH lOUT 21 SAVE HYDROGRAPH ON THIS UNIT ISAVi 1 FIRST ORDINATE PUNCHED OR SAVED ISAV2 500 LAST ORDINATE PUNCHED OR SAVED TIMINT .250 TIME INTERVAL IN HOURS I I I I I t I I I I 1 I I OPERATION STATION $ ROUTED TO BASIN1 ** NORMAL END OF NEC-i *** I I Ii I $ I I I a I I I I. RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAK TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAK 6-HOUR 24-HOUR 72-HOUR AREA STAGE MAX STAGE 1. .00 1. 0. 0. .00 1.55 .00 I BASIN1 151200 1JAN90 0 1 1 500 .000 1.181 1.155 1.129 1.103 1.078 1.054 1.027 .997 .967 .938 .910 .883 .857 .832 .807 .783 .755 .721 .689 .658 .629 .601 .574 .548 .524 .501 .478 .457 .412 .360 .314 .275 .240 .210 .183 .160 .140 .122 .107 .093 .082 .071 .062 .054 .048 .042 .036 .032 .028 .024 .021 .018 .016 .014 .012 .011 .009 .008 .007 .006 .005 .004 .004 .003 .003 .002 .002 .002 .002 .001 .001 .001 .001 .001 .001 .001 .001 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 '1 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .600 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 . .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I I I ***************************************** * * I * FLOOD IjYDROGRAPH PACKAGE (NEC-1) * * JUN 1998 * * VERSION 4.1 * I* * * RUN DATE 12MAR12 TIME 09:10,21 * ************************************** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 * *** *************** **** *** * **** ** * * * * * x x xxxxxxx xxxxx x x x x x x xx x xx x x xxxxxxx xxxx x xxxxx x x xx x x x x x x x x x xxxxxxx xxxxx xxx THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF NEC-i KNOWN AS HEC1 (JAN 73), HEdGE, HEC1DB, AND HEC1KW. THE DEFINITIONS OF VARIABLES -RTIMP- AND -RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -ANSKK- ON RN-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AI4PT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM I I I I I I I I It 1 LINE I i 2 3 4 I 5 FREE 10 11 12 13 14 NEC-i INPUT ID.......1 .......2 .......3 .......4 .......5 .......6 .......7 .......8 .......9 ......10 *DIAGRAM ID QUARRY CREEK ID J-16483 ID POST-PROJECT CONDITION ID WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS ID EXTENDED BIORETENTION BASIN 3-2 IT 15 01JAN90 1200 500 10 5 1 KKBASIN3-2 1<0 0 0 0 0 21 RS 1 STOR .536 91,7 0 .142 .267 .400 .540 SE 0 .49 .89 1.29 1.69 SQ 0 .51 .69 .83 .95 zz PAGE 1 Ii SCHEMATIC DIAGRAM OF STREAM NETWORK I INPUT LINE (V) ROUTING (--->) DIVERSION OR PUMP FLOW I NO. (.) CONNECTOR (<---) RETURN OF DIVERTED OR PUMPED FLOW *** HEC1 ERROR 4 *** NO HYOROGRAPHS AVAILABLE TO ROUTE I 8 BASIN3-2 (***) RUNOFF ALSO COMPUTED AT THIS LOCATION 1 ERRORS IN STREAM SYSTEM 1 I I I $ I I ** ******** * * *** ** ********* *** **** * J * FLOOD HYDROGRAPH PACKAGE (NEC-1) * * JUN 1998 * * VERSION 4.1 * I* * * RUN DATE 12MAR12 TIME 09:10:21 * I. QUARRY CREEK J-16483 POST-PROJECT CONDITION MATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS EXTENDED BIORETENTION BASIN 3-2 7 10 OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE IT HYDROGRAPH TIME DATA NMIN 15 MINUTES IN COMPUTATION INTERVAL bATE 1JAN90 STARTING DATE ITIME 1200 STARTING TIME NQ 500 NUMBER OF HYDROGRAPH ORDINATES NDDATE 6JAN90 ENDING DATE NDTIME 1645 ENDING TIME ICENT 19 CENTURY MARK COMPUTATION INTERVAL .25 HOURS TOTAL TIME BASE 124.75 HOURS ENGLISH UNITS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ** * ********* * ** * 8 KK * BASIN3-2 * ************** 9 KO OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE IPNCH 0 PUNCH COMPUTED HYDROGRAPH lOUT 21 SAVE HYDROGRAPH ON THIS UNIT ISAV1 1 FIRST ORDINATE PUNCHED OR SAVED ISAV2 500 LAST ORDINATE PUNCHED OR SAVED TIMINT .250 TIME INTERVAL IN HOURS I I OPERATION STATION ROUTED TO BASIN3-2 *** NORMAL END OF NEC-i I I I I I I. I I I 'I $ I I RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAK TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAK 6-HOUR 24-HOUR 72-HOUR AREA STAGE MAX STAGE 1. .00 1. 0. 0. .00 1.68 .00 I 151200 1JAN90 0 1 1 500 .000 947 .930 .914 .898 .882 .866 .851 .836 .820 .802 785 .768 .751 .735 .719 .704 .688 .668 .648 .629 611 .593 .576 .559 .542 .527 .511 .476 .442 .410 381 .354 .329 .305 .283 .263 .244 .227 .210 .195 181 .168 .156 .145 .135 .125 .116 .108 .100 .093 086 .080 .074 .069 .064 .060 .055 .051 .048 .044 041 .038 .035 .033 .031 .028 .026 .024 .023 .021 020 .018 .017 .016 .015 .013 .013 .012 .011 .010 009 .009 .008 .007 .007 .006 .006 .006 .005 .005 004 .004 .004 .004 .003 .003 .003 .003 .002 .002 002 .002 .002 .002 .002 .001 .001 .001 .001 .001 001 .001 .001 .001 .001 .001 .001 .001 .001 .001 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .•900 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I I I I [ * I p I I :***************************************: I * FLOOD HYDROGRAPH PACKAGE (HEC-1) * * JUN 1998 * * VERSION 4.1 * ,I* * * RUN DATE 12MAR12 TIME 09:13:01 * * ** * * ** *** **** * ** ***** **** * *** * ***** ** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 * ************************************** I x x xxxxxxx xxxxx x x x x x x xx x x x x xxxxxxx xxxx x xxxxx x x x x x x x x x x x x xxxxxxx xxxxx xxx THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HEC1 (JAN 73), HEC1GS, HEC1DB, AND HEC1KW. THE DEFINITIONS OF VARIABLES -RTIMP- AND -RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -AMSKK- ON RH-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS:WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AMPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM I I I I, I I I I I I I LINE { ** FREE *** $ I 10 11 I 12 13 14 I $ 1 I $ I I I I I $ I EEC-i INPUT ID.......1 .......2 .......3 .......4 .......5 .......6 .......7 .......8 .......9 ......10 *DIAGRAM ID QUARRY CREEK ID J-16483 ID POST-PROJECT CONDITION ID WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS ID EXTENDED BIORETENTION BASIN 3-3 IT 15 01JAN90 1200 500 10 5 1 KKBASIN3-3 KO 0 0 0 0 21 RS 1 STOR .273 SV 0 .055 .096 .197 .274 SE 0 .72 1.17 2.11 2.72 SQ 0 .21 .27 .37 .42 zz PAGE 1 I SCHEMATIC DIAGRAM OF STREAM NETWORK I INPUT LINE (v) ROUTING (--->) DIVERSION OR PUMP FLOW NO. (.) CONNECTOR (<---) RETURN OF DIVERTED OR PUMPED FLOW *** HEC1 ERROR 4 *** NO HYDROGRAPHS AVAILABLE TO ROUTE I 8 BASIN3-3 (***) RUNOFF ALSO COMPUTED AT THIS LOCATION 1 ERRORS IN STREAM SYSTEM I I I 1 I I a I I I I I ************************************** I * FLOOD HYDROGRAPH PACKAGE (HEC-1) * * JUN 1998 * * VERSION 4.1 * ' TJJ DATE 12MAR12 TIME 09:13:01 * I * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 * QUARRY CREEK J-16483 POST-PROJECT CONDITION WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS EXTENDED BIORETENTION BASIN 3-3 7 10 OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL IPLOT 1 PLOT CONTROL -, - QSCAL 0. HYDROGRAPH PLOT. SCALE IT HYDROGRAPH TIME DATA I NMIN 15 MINUTES IN COMPUTATION INTERVAL IDATE 1JAN90 STARTING DATE ITIME 1200 STARTING TIME I NQ 500 NUMBER OF HYDROGRAPH ORDINATES NDOA TE 6JAN90 ENDING DATE NDTIME 1645 ENDING TIME I ICENT 19 CENTURY MARK COMPUTATION INTERVAL .25 HOURS TOTAL TIME BASE 124.75 HOURS I ENGLISH UNITS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES I LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET I . SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT I *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***. *** *** *** *** *** *** *** ** I ************** 8 KK 9 KO OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL I IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE . I PNCM 0 PUNCH COMPUTED HYDROGRAPH I lOUT 21 SAVE HYDROGRAPH ON THIS UNIT ISAVi 1 FIRST ORDINATE PUNCHED OR SAVED ISAV2 500 . LAST ORDINATE PUNCHED OR SAVED TIMINT .250 TIME INTERVAL IN HOURS Li [1 I I ul I F] I ri I I $ OPERATION STATION I ROUTED TO BASIN3-3 NORMAL END OF NEC-i *** I I I $ I I . I I I I I I 1• I RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAR TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD FLOW PEAK 6-HOUR 24-HOUR 72-HOUR 0. .00 0. 0. 0. BASIN MAXIMUM TIME OF AREA STAGE MAX STAGE .00 2.71 .00 000 I I EASIN3-3 151200 1JAN90 0 1 1 500 .419 .414 .408 .365 .358 .350 I .297 .291 .286 .230 .223 .217 .121 .112 .104 I .055 .051 .047 .025 .023 .021 .011 .011 .010 I .005 .005 .004 .002 .002 .002 .001 .001 .001 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .I .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 - .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .poo .000 .000 .000 .000 .000 .000 .000 .000 $ I .403 .397 .392 .387 .382 .377 .372 .343 .336 .329 .323 .316 .310 .304 .280 .274 .268 .260 .252 .245 .237 .210 .195 .180 .166 .154 .142 .131 .096 .088 .082 .076 .070 .065 .060 .043 .040 .037 .034 .032 .029 .027 .020 .018 .017 .016 .014 .013 .012 .009 .008 .008 .007 .007 .006 .006 .004 .004 .003 .003 .003 .003 .003 .002 .002 .002 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .0•00 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 . . 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 1 I* FLOOD HYDROGRAPJ-1 PACKAGE (HEC-1) * * JUN 1998 * * VERSION 41 * I* * * RUN DATE 12MAR12 TIME 09:14:20 * * **** * *** ** * ** **** * ** ****** ***** ****** I ************************************** * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 * * ***** **** **** * * ********** ********* ** * x x xxxxxxx xxxxx x x x x xx I x x x x x xxxxxxx xxxx x xxxxx x x x x x x x x x x x x xxxxxxx xxxxx xxx I THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HEC1 (JAN 73), HEdGE, HEC1DB, AND HEC1KW. THE DEFINITIONS OF VARIABLES -RTIMP- AND -RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -AMSKK- ON RN-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DES: WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND AI4PT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM I I 1 I I I $ PAGE 1 NEC-i INPUT ID.......1 .......2 .......3 .......4 .......5 .......6 .......7 .......8 .......9 ......10 *DIAGRAM ID QUARRY CREEK ID J-16483 ID POST-PROJECT CONDITION ID WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS ID EXTENDED BIORETENTION BASIN 3-7 IT 15 01JAN90 1200 500 10 5 1 KKBASIN3 -7 KO 0 0 0 0 21 RS 1 STOR .06 SV 0 .024 .037 .052 .068 SE 0 1.16 1.64 2.18 2.67 SQ 0 .11 .14 .17 .49 zz Li I SCHEMATIC DIAGRAM OF STREAM NETWORK INPUT LINE (v) ROUTING (--->) DIVERSION OR PUMP FLOW I NO. (.) CONNECTOR (< --- ) RETURN OF DIVERTED OR PUMPED FLOW *** HEC1 ERROR 4 *** NO HYDROGRAPHS AVAILABLE TO ROUTE I 8 BASIN3-7 (***) RUNOFF ALSO COMPUTED AT THIS LOCATION 1 ERRORS IN STREAM SYSTEM I I I I I I I I [1 .1 I. I I 1 ************************************** I * * * FLOOD HYDROGRAPH PACKAGE (HEC-1) * * * U.S. ARMY CORPS OF ENGINEERS * JUN 1998 * * HYDROLOGIC ENGINEERING CENTER * VERSION 4.1 * * 609 SECOND STREET * * DAVIS, CALIFORNIA 95616 I * * RUN DATE 12MAR12 TIME 09:14:20 * * * * (916) 756-1104 * ***************************************** I QUARRY CREEK J-16483 POST-PROJECT CONDITION WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS EXTENDED BIORETENTION BASIN 3-7 - 7 IC OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL IPLOT 1 PLOT CONTROL I QSCAL. 0, HYDROGRAPH PLOT SCALE IT HYDROGRAPH TIME DATA I NWIN 15 MINUTES IN COMPUTATION INTERVAL IDATE 1JAN90 STARTING DATE ITIME 1200 STARTING TIME I NQ 500 NUMBER OF HYDROGRAPH ORDINATES NDDATE 6JAN90 ENDING DATE NDTIME 1645 ENDING TIME ICENT 19 CENTURY MARK COMPUTATION INTERVAL .25 HOURS TOTAL TIME BASE 124.75 HOURS - ENGLISH UNITS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES I LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET I SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT I *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ** I *** * ** * * ** * 8 KK 9 KO OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL I IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE IPNCH 0 PUNCH COMPUTED HYDROGRAPH I lOUT 21 SAVE HYDROGRAPH ON THIS UNIT ISAVi 1 FIRST ORDINATE PUNCHED OR SAVED ISAV2 500 LAST ORDINATE PUNCHED OR SAVED TIMINT .250 TIME INTERVAL IN HOURS I F1 I I F~ [] I I El I 'I I I I El I I I I OPERATION STATION I ROUTED TO BASIN3-7 *** NORMAL END OF HEC-1 I I 1 I 1 1 I I I I I I I I RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAK TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD FLOW PEAK 6-HOUR 24-HOUR 72-HOUR 0. .00 0. 0. 0. BASIN MAXIMUM TIME OF AREA STAGE MAX STAGE .00 2.42 .00 I I I BASIN3-7 151200 1JAN90 0 1 1 500 .330 .217 .167 .117 .112 .103 I .048 .044 .040 .019 .017 .015 I .007 .003 .007 .003 .006 .002 .001 .001 .001 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 ' .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 ' .000 .000 .000 .000 .000 .000 .000 .000 .000 ' .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 ' .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 160 .154 .147 .141 .135 .129 .123 094 .085 .077 .070 .064 .058 .053 036 .033 .030 .027 .025 .023 .021 014 .013 .012 .011 .010 .009 .008 005 .005 .005 .004 .004 .003 .003 002 .002 .002 .002 .001 .001 .001 001 .001 .001 .001 .001 .001 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 .000 .000 .000 .000 .000 .000 000 I * FLOOD JiYDROGHAPH PACKAGE (HEC-1) * * JUN 1998 * * VERSION 4.1 * I* * * RUN DATE 12MAR12 TIME 09:15:52 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * U.S. ARMY CORPS OF ENGINEERS * HYDROLOGIC ENGINEERING CENTER * 609 SECOND STREET * DAVIS, CALIFORNIA 95616 * (916) 756-1104 I x x xxxxxxx xxxxx x l x x x x x xx x x x x xxxxxxx xxxx x xxxxx x I x x x x x x x x x x x xxxxxxx xxxxx xxx I I THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF NEC-i KNOWN AS HEC1 (JAN 73), HEC1GS, HEC1DB, AND HEC1KW. THE DEFINITIONS OF VARIABLES -RTIMP- AND -RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -ANSKK- ON RN-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE FORTRAN77 VERSION I NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS: WRITE STAGE FREQUENCY, DSS:READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND ANPT INFILTRATION KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM 1 I I I 1 I I 11, I I LINE I i 2 3 I 4 5 *** FREE12 *** 10 11 I 13 - 14 I I I I I I I I 1 I I I HEC-1 INPUT ID.......1 .......2 .......3 .......4 .......5 .......6 .......7 .......8 .......9 ......10 *DIAGRAM ID QUARRY CREEK ID J-16483 ID POST-PROJECT CONDITION ID WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS ID EXTENDED BIORETENTION BASIN 4 IT 15 01JAN90 1200 500 10 5 1 KR BASIN4 KO 0 0 0 0 21 RS 1 STOR 1.081 SV 0 .342 .74 .999 1.132 SE 0 .67 1.39 1.83 2.06 SQ 0 1.2 1.74 2.0 2.11 zz PAGE 1 I SCHEMATIC DIAGRAM OF STREAM NETWORK I INPUT LINE (V) ROUTING (--->) DIVERSION OR PUMP FLOW I NO. C.) CONNECTOR (<---) RETURN OF DIVERTED OR PUMPED FLOW *** HEC1 ERROR 4 *** NO HYDROGRAPHS AVAILABLE TO ROUTE I 8 EASIN4 (***) RUNOFF ALSO COMPUTED AT THIS LOCATION 1 ERRORS IN STREAM SYSTEM I I I 1 U I fl I Li 1 I I 1 ***************************************** I * * * FLOOD HYDROGRAPH PACKAGE (NEC-1) * * * U.S.CORPS OF ENGINEERS * JUN 1998 * * HYDROLOGIC ENGINEERING CENTER * VERSION 4.1 * * 609 SECOND STREET * * DAVIS, CALIFORNIA 95616 I * * RUN DATE 12MAR12 TIME 09:15:52 * * * (916) 756-1104 * * ***************************************** ************************************** I QUARRY CREEK J-16483 I POST-PROJECT CONDITION WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS EXTENDED BIORETENTION BASIN 4 I 7 10 OUTPUT CONTROL VARIABLES IPRHT 5 PRINT CONTROL ' IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE IT HYDROGRAPH TIME DATA I NMIN 15 MINUTES IN COMPUTATION INTERVAL IDATE 1JAN90 STARTING DATE ITIME 1200 STARTING TIME I NQ 500 NUMBER OF HYDROGRAPH ORDINATES NODA TE 6JAN90 ENDING DATE NDTIME 1645 ENDING TIME I ICENT 19 CENTURY MARK COMPUTATION INTERVAL .25 HOURS TOTAL TIME BASE 124.75 HOURS I ENGLISH UNITS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES I LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET I SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT I *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ** I ** ** * * ** ** *** * I * * 8 K * BASIN4 * ************** 9 KO OUTPUT CONTROL VARIABLES IPRNT 5 PRINT CONTROL IPLOT 1 PLOT CONTROL QSCAL 0. HYDROGRAPH PLOT SCALE IPNCH 0 PUNCH COMPUTED HYDROGRAPH I .lOUT 21 SAVE HYDROGRAPH ON THIS UNIT ISAVi 1 FIRST ORDINATE PUNCHED OR SAVED ISAV2 500 LAST ORDINATE PUNCHED OR SAVED TIMINT .250 TIME INTERVAL IN HOURS I I Li r L I I I I I I I I El I I I I OPERATION STATION I ROUTED TO BASIN4 *** NORMAL END OF NEC-i *** 1 I 1 I I I I I I I I I I I RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAK TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAK 6-HOUR 24-HOUR 72-HOUR AREA STAGE MAX STAGE 2. .00 2. 1. 0. .00 1.97 .00 BASIN4 151200 1ThN90 0 1 1 500 .000 2.068 2.033 1.998 1.957 1.917 1.877 1.839 1.801 1.764 1.724 1.676 1.630 1.585 1.541 1.498 1.457 1.417 1.377 1.339 1.302 1.266 1.231 1.193 1.110 1.032 .960 .893 .830 .772 .718 .668 .621 .578 .537 .500 .465 .432 .402 .374 .348 .323 .301 .280 .260 .242 .225 .209 .195 .181 .168 .157 .146 .135 .126 .117 .109 .101 .094 .088 .082 .076 .071 .066 .061 .057 .053 .049 .046 .042 .039 .037 .034 .032 .030 .027 .026 .024 .022 .021 .019 .018 .017 .015 .014 .013 .012 .012 .011 .010 .009 .009 .008 .007 .007 .006 .006 .006 .005 .005 .004 .004 .004 .004 .003 .003 .003 .003 .003 .002 .002 .002 .002 .002 .002 .002 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .006 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 :000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 ***************************************** ************************************** I * * * FLOOD HYDROGPAPH PACKAGE (NEC-1) * * *U.S. ARMY CORPS OF ENGINEERS * JUN 1998 * * HYDROLOGIC ENGINEERING CENTER * VERSION 4.1 * * 609 SECOND STREET * * DAVIS, CALIFORNIA 95616 I * * RUN DATE 12MAR12 TIME 09:18:33 * * * * (916) 756-1104 * I ***************************************** ************************************** I x x xxxxxxx xxxxx x x X. X XX I x x x x x xxxxxxx xxxx x xxxxx x x x x x I x x x x x x x xxxxxxx xxxxx xxx I I THIS PROGRAM REPLACES ALL PREVIOUS VERSIONS OF HEC-1 KNOWN AS HEC1 (JAN 73), HEC1GS, HEC1DB, AND HEC1KW. THE DEFINITIONS OF VARIABLES -RTIMP- AND -RTIOR- HAVE CHANGED FROM THOSE USED WITH THE 1973-STYLE INPUT STRUCTURE. THE DEFINITION OF -ANSKK- ON RN-CARD WAS CHANGED WITH REVISIONS DATED 28 SEP 81. THIS IS THE -FORTRAN77 VERSION I NEW OPTIONS: DAMBREAK OUTFLOW SUBMERGENCE , SINGLE EVENT DAMAGE CALCULATION, DSS :WRITE STAGE FREQUENCY, DSS,READ TIME SERIES AT DESIRED CALCULATION INTERVAL LOSS RATE:GREEN AND ANPT INFILTRATION. KINEMATIC WAVE: NEW FINITE DIFFERENCE ALGORITHM I I F] I I I I I I I I LINE 1 2 3 FREE *** I 8 9 1 10 1]. 12 13 I 14 I I I I I I I I I I I I HEC-1 INPUT ID.......1 .......2 .......3 .......4 .......5 .......6 .......7 .......8 .......9 ......10 *DIAGRAM ID QUARRY CREEK ID J-16483 ID POST-PROJECT CONDITION ID WATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS ID EXTENDED BIORETENTION BASIN 5 IT 15 01JAN90 1200 500 10 5 1 ilK BASIN5 KO 0 0 0 0 21 RS 1 STOR .505 SV 0 .094 .238 .362 .515 SE 0 .22. .56 .83 1.17 SQ 0 .37 .59 .72 .85 zz PAGE 1 I SCHEMATIC DIAGRAM OF STREAM NETWORK I INPUT LINE (V) ROUTING (--->) DIVERSION OR PUMP FLOW I NO. (.) CONNECTOR (< --- ) --) RETURN OF DIVERTED OR PUMPED FLOW *** HEC1 ERROR 4 *** NO HYDROGRAPHS AVAILABLE TO ROUTE I 8 BASIN5 (***) RUNOFF ALSO COMPUTED AT THIS LOCATION 1 ERRORS IN STREAM SYSTEM I I I I I I I L~ u Li Li I ***************************************** * * * I * FLOOD HYDROGRAPH PACKAGE (NEC-1) * * U.S. ARMY CORPS OF ENGINEERS * JUN 1998 * * HYDROLOGIC ENGINEERING CENTER * VERSION 4.1 * * 609 SECOND STREET * * DAVIS, CALIFORNIA 95616 I * * RUN DATE 12MAR12 TIME 09:18:33 * * (916) 756-1104 ***************************************** ************************************** I QUARRY CREEK J-16483 I POST-PROJECT CONDITION MATER QUALITY BASIN DRAWDOWN TIME CALCULATIONS EXTENDED BIORETENTION BASIN S I . 7 10 OUTPUT CONTROL VARIABLES IPRRT 5 PRINT CONTROL IPLOT 1 PLOT CONTROL I QSCAL 0. HYDROGRAPH PLOT SCALE IT HYDROGRAPH TIME DATA I NMIN 15 MINUTES IN COMPUTATION INTERVAL IDATE 1JAN90 STARTING DATE ITIME 1200 STARTING TIME I NQ 500 NUMBER OF HYDROGRAPH ORDINATES NDDA TE 6JAN90 ENDING DATE NDTIME 1645 ENDING TIME I ICENT 19 CENTURY MARK COMPUTATION INTERVAL .25 HOURS TOTAL TIME BASE 124.75 HOURS I ENGLISH UNITS DRAINAGE AREA SQUARE MILES PRECIPITATION DEPTH INCHES I LENGTH, ELEVATION FEET FLOW CUBIC FEET PER SECOND STORAGE VOLUME ACRE-FEET I SURFACE AREA ACRES TEMPERATURE DEGREES FAHRENHEIT I *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ** I ************** 8 K * BASINS * ************** 9 KO OUTPUT CONTROL VARIABLES IPRNT S PRINT CONTROL IPLOT 1 PLOT CONTROL I I I I I I , I I I I I I I I I I I. I .1 QSCAL 0. HYDROGRAPH PLOT SCALE IPNCH 0 PUNCH COMPUTED HYDROGRAPH lOUT 21 SAVE HYDROGRAPH ON THIS UNIT ISAVi 1 FIRST ORDINATE PUNCHED OR SAVED ISAV2 500 LAST ORDINATE PUNCHED OR SAVED TIMINT .250 TIME INTERVAL IN HOURS I I OPERATION STATION ROUTED TO BASINS *** NORMAL END OF NEC-i *** I I I I I I I I I I I I I I RUNOFF SUMMARY FLOW IN CUBIC FEET PER SECOND TIME IN HOURS, AREA IN SQUARE MILES PEAK TIME OF AVERAGE FLOW FOR MAXIMUM PERIOD BASIN MAXIMUM TIME OF FLOW PEAK 6-HOUR 24-HOUR 72-HOUR AREA STAGE MAX STAGE 1. .00 1. 0. 0. .00 1.15 .00 BASIN5 151200 1JAN90 0 1 1 500 .000 .842 .827 .812 .798 .784 .771 .757 .744 .731 .718 .703 .688 .673 .659 .644 .631 .617 .604 .591 .573 .555 .538 .521 .505 .489 .474 .459 .445 .431 .418 .405 .392 .380 .366 .337 .311 .287 .264 .244 .225 .207 .191 .176 .162 .149 .138 .127 .117 .108 .100 .092 .085 .078 .072 .066 .061 .056 .052 .048 .044 .041 .037 .035 .032 .029 .027 .025 .023 .021 .020 .018 .017 .015 .014 .013 .012 .011 .010 .009 .009 .008 .007 .007 .006 .006 .005 .005 .005 .004 .004 .004 .003 .003 .003 .003 .002 .002 .002 .002 .002 .002 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .001 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .. 000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 .000 I I I I I I 'I I I I I 1 I I I I I I I I n Prepared By: Rick Engineering Company - Water Resources Division I I I I APPENDIX D I SDHM Output and Support Material DCB :SL:vsfReportil6483 .003 10-19-11 Revised: 12-20-11 Revised: 3-12-12 I I I 1 I I I I I I SDHM2 011 PROJECT REPORT Project Name: QCPOC1 Site Name : Quarry Creek Site Address: City Report Date : 3/5/2012 Gage : OCEANS ID Data Start : 10/01/1959 Data End : 09/30/2004 Precip Scale: 1.00 Version : 2012/03/01 I I I I IT] I PREDEVELOPED LAND USE I Name : POOl Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(O-5%) 4.97 I A,Grass,MOD(5-10%) .23 A,Grass,STEEP(10-20 2.57 D,Grass,FLAT(O-5%) 1.21 I D,Grass,MOD(5-10%) .62 D,Grass,STEEP(10-20 1.9 Impervious Land Use Acres I IMPERVIOUS-FLAT 1.6 IMPERVIOUS-MOD 1.22 Element Flows To: I Surface Interflow I MITIGATED LAND USE a Name : POC 1 Bypass: No I GroundWater: No Pervious Land Use Acres A,Grass,FLAT(O-5%) 1.76 I A,Grass,STEEP(10-20 2.03 D,Grass,FLAT(O-5%) .31 D,Grass,STEEP(10-20 1.61 I I Groundwater Impervious Land Use Acres IMPERVIOUS-FLAT 7.95 IMPERVIOUS-MOD 0.67 Element Flows To: Surface Interflow Groundwater Pond 1 Pond Name : Pond 1 Bottom Length: 385.00 ft. Bottom Width: 35.00 ft. Depth : 4 ft. Volume at riser head :. 1.1144 acre-ft. Side slope 1: 2 To 1 Side slope 2: 2 To 1 Side slope 3; 2 To 1 Side slope 4: 2 To 1 Discharge Structure Riser Height: 3 ft. Riser Diameter: 18 in. Notch Type : Rectangular Notch Width : 1.500 ft. Notch Height: 0.669 ft. Orifice 1 Diameter: 6 in. Elevation: 0 ft. Element Flows To; Outlet 1 Outlet 2 Pond Hydraulic Table Stage(ft) Area(ac) Volujne(ac-ft) Discharge(cfs) lnfilt(cfs) 0.0000 0.309 0.000 0.000 0.000 0.0444 0.311 0.013 0.199 0.000 0.0889 0.312 0.027 0.281 0.000 0.1333 0.314 0.041 0.345 0.000 0.1778 0.316 0.055 0.398 0.000 0.2222 0.317 0.069 0.445 0.000 0.2667 0.319 0.083 0.488 0.000 0.3111 0.321 0.098 0.527 0.000 0.3556 0.323 0.112 0.563 0.000 0.4000 0.324 0.126 0.598 0.000 0.4444 0.326 0.141 0.630 0.000 0.4889 0.328 0.155 0.661 0.000 0.5333 0.330 0.170 0.690 0.000 0.5778 0.331 0.185 0.718 0.000 0.6222 0.333 0.200 0.745 0.000 0.6667 0.335 0.214 0.772 0.000 0.7111 0.337 0.229 0.797 0.000 0.7556 0.338 0.244 0.821 0.000 I 0.8000 0.340 0.259 0.845 0.000 0.8444 0.342 0.275 0.868 0.000 0.8889 0.343 0.290 0.891 0.000 0.9333 0.345 0.305 0.913 0.000 0.9778 0.347 0.321 0.934 0.000 1.0222 0.349 0.336 0.955 0.000 1.0667 0.350 0.352 0.976 0.000 1.1111 0.352 0.367 0.996 0.000 1.1556 0.354 0.383 1.016 0.000 1.2000 0.356 0.399 1.035 0.000 1.2444 0.357 0.415 1.054 0.000 1.2889 0.359 0.431 1.073 0.000 1.3333 0.361 0.447 1.091 0.000 1.3778 0.363 0.463 1.109 0.000 1.4222. 0.364 0.479 1.127 0.000 1.4667 0.366 0.495 1.145 0.000 1.5111 0.368 0.511 1.162 0.000 1.5556 0.370 0.528 1.179 0.000 1.6000 0.372 0.544 1.196 0.000 1.6444 0.373 0.561 1.212 0.000 1.6889 0.375 0.578 1.228 0.000 1.7333 0.377 0.594 1.244 0.000 1.7778 0.379 0.611 1.260 0.000 1.8222 0.380 0.628 1.276 0.000 1.8667 0.382 0.645 1.291 0.000 1.9111 0.384 0.662 1.307 0.000 1.9556 0.386 0.679 1.322 0.000 2.0000 0.387 0.696 1.337 0.000 2.0444 0.389 0.714 1.351 0.000 2.0889 0.391 0.731 1.366 0.000 2.1333 0.393. 0.748 1.381 0.000 2.1778 0.395 0.766 1.395 0.000 2.2222 0.396 0.784 1.409 0.000 2.2667 0.398 0.801 1.423 0.000 2.3111 0.400 0.819 1.437 0.000 2.3556 0.402 0.837 1.470 0.000 2.4000 0.404 0.855 1.555 0.000 2.4444 0.405 0.873 1.669 0.000 2.4889 0.407 0.891 1.805 0.000 2.5333 0.409 0.909 1.959 0.000 2.5778 0.411 0.927 2.130 0.000 2.6222 0.413 0.946 2.316 0.000 2.6667 0.414 0.964 2.515 0.000 2.7111 0.416 0.982 2.727 0.000 2.7556 0.418 1.001 2.951 0.000 2.8000 0.420 1.020 3.186 0.000 2.8444 0.422 1.038 3.432 0.000 2.8889 0.423 1.057 3.688 0.000 2.9333 0.425 1.076 3.954 0.000 2.9778 0.427 1.095 4.230 0.000 3.0222 7.429 1.114 4.425 0.000 3.0667 7.431 1.133 4.640 0.000 3.1111 :7.432 1.152 4.942 0.000 3.1556 3.434 1.172 5.309 0.000 3.2000 3.436 1.191 5.731 0.000 3.2444 3.438 1.210 6.202 0.000 3.2889 3.440 1.230 6.716 0.000 n L 1 I I I U I I L. I [1 I I] 3.3333 0.442 1.249 7.271 0.000 3.3778 0.443 1.269 7.863 0.000 3.4222 3.4667 0.445 0.447 1.289 1.309 8.490 9.151 0.000 0.000 3.5111 0.449 1.329 9.843 0.000 3.5556 0.451 1.349 10.56 0.000 0.452 1.369 11.31 0.000 3.6000 3.6444 0.454 1.389 12.09 0.000 3.6889 0.456 1.409 12.90 0.000 3.7333 0.458 1.430 13.73 0.000 3.7778 0.460 1.450 14.59 0.000 3.8222 0.462 1.470 15.47 0.000 3.8667 0.464 1.491 16.37 0.000 0.465 1.512 17.30 0.000 3 .9111 3.9556 0.467 1.532 18.26 0.000 4.0000 0.469 1.553 19.23 0.000 4.0444 0.471 1.574 20.22 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped. POC #1 Flow (cfs) Return Period 2 year 2.59967 5 year 4.648867 6.222832 10 year 25 year 7.941296 Flow Frequency Return Periods for Mitigated. POC #1 Flow (cfs) Return Period 2 year 1.288965 5 year 1.975267 10 year 3.678746 25 year 4.395659 POC #1 The Facility PASSED The Facility PASSED. Flow(cfs) Predev Mit Percentage Pass/Fail 1.2998 127 111 87 Pass 1.3496 123 92 74 Pass 1.3993 114 67 58 Pass 1.4490 105 56 53 Pass 1.4987 97 52 53 Pass 1.5485 92 45 48 Pass 1.5982 89 41 46 Pass 1.6479 85 36 42 Pass 1.6977 85 34 40 Pass 1.7474 82 31 37 Pass 1.7971 78 30 38 Pass I I I I I 111 1.8468 77 28 36 Pass 1.8966 71 26 36 Pass 1.9463 68 26 38 Pass 1.9960 63 24 38 Pass 2.0457 56 23 41 Pass 2.0955 55 23 41 Pass 2.1452 52 22 42 Pass 2.1949 49 22 44 Pass 2.2447 48 20 41 Pass 2.2944 46 20 43 Pass 2.3441 44 19 43 Pass 2.3938 43 18 41 Pass 2.4436 40 17 42 Pass 2.4933 36 17 47 Pass 2.5430 36 17 47 Pass 2.5927 35 17 48 Pass 2.6425 34 15 44 Pass 2.6922 32 15 46 Pass 2.7419 31 14 45 Pass 2.7917 28 12 42 Pass 2.8414 28 12 42 Pass 2.8911 27 11 40 Pass 2.9408 23 11 47 Pass 2.9906 22 10 45 Pass 3.0403 22 10 45 Pass 3.0900 20 10 50 Pass 3.1397 120 10 50 Pass 3.1895 20 10 50 Pass 3.2392 20 10 50 Pass 3.2889 20 10 50 Pass 3.3387 20 10 50 Pass 3.3884 18 10 55 Pass 3.4381 .18 9 50 Pass 3.4878 18 9 50 Pass 3.5376 17 9 52 Pass 3.5873 17 9 52 Pass 3.6370 17 9 52 Pass 3.6867 17 8 47 Pass 3.7365 17 8 47 Pass .3.7862 16 8 50 Pass 3.8359 16 7 43 Pass 3.8857 16 6 37 Pass 3.9354 14 5 35 Pass 3.9851 14 5 35 Pass 4.0348 13 5 38 Pass 4.0846 13 5 38 Pass 4.1343 13 4 30 . Pass 4.1840 13 4 30 Pass 4.2337 12 3 25 Pass 4.2835 12 3 25 Pass 4.3332 11 3 27 Pass 4.3829 11 3 27 Pass 4.4327 11 3 27 Pass 4.4824 11 2 18 Pass 4.5321 10 2 20 Pass 4.5818 10 2 20 Pass 4.6316 9 2 22 Pass I I I I F-I i I I H I I I I I I I 1 I 4.6813 9 2 22 Pass 4.7310 8 2 25 Pass 4.7807 8 2 25 Pass 4.8305 7 2 28 Pass 4.8802 7 2 28 Pass 4.9299 6 2 33 Pass 4.9797 6 2 33 Pass 5.0294 6 2 33 Pass 5.0791 6 2 33 Pass 5.1288 5 2 40 Pass 5.1786 5 2 40 Pass 5.2283 5 2 40 Pass 5.2780 5 2 40 Pass 5.3277 5 2 40 Pass 5.3775 5 2 40 Pass 5.4272 5 2 40 Pass 5.4769 5 2 40 Pass 5.5267 5 2 40 Pass 5.5764 5 2 40 Pass 5.6261 5 2 40 Pass 5.6758 5 2 40 Pass 5.7256 5 2 40 Pass 5.7753 5 2 40 Pass 5.8250 5 2 40 Pass 5.8747 5 2 40 Pass 5.9245 5 2 40 Pass 5.9742 5 2 40 Pass 6.0239 5 2 40 Pass 6.0737 5 1 20 Pass 6.1234 5 1 20 Pass 6.1731 4 1 25 Pass 6.2228 4 1 25 Pass Water Quality BNP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. Off-line facility target flow: C cfs. Adjusted for 15 mm: 0 cfs. Perind and Impind Changes No changes have been made. This program and accompanying documentatior is provided 'as-is I without warranty of any kind. The entire risk regarding the performance and results c this program is assumed by the user. Clear Creek Solutions, Inc. disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions, Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions, Inc. has been advised of the possibility of such damages. I I I I I U I I I I 1 I I I I I I I I I I I I I I I 1 I I I I I I I I I I SDHM2O11 PROJECT REPORT Project Name: QCPOC3-2 Site Name Quarry Creek Site Address: City Report Date 3/5/2012 Gage OCEANS ID Data Start 10/01/1959 Data End 09/30/2004 Precip Scale: 1.00 Version 2012/03/01 PREDEVELOPED LAND USE Name : POC 3-2 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) 3.13 A,Grass,MOD(5-10%) .08 A,Grass,STEEP(10-20 .01 B,Grass,FLAT(0-5%) .22 B,Grass,MOD(5-10%) .14 B,Grass,STEEP(10-20 .03 D,Grass,FLT(0-5%) 3.44 D,Grass,MOD(5-10%) .83 D,Grass,STEEP(10-20 3.56 Impervious Land Use Acres IMPERVIOUS-FLAT 1.17 IMPERVIOUS-MOD 0.53 Element Flows To: Surface Interflow MITIGATED LAND USE Name : POC 3-2 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) .54 A,Grass,STEEP(10-20 .1 Groundwater I I I I I I I I I a I I I I I I I I I B,Grass,FLAT(0-5%) .04 D,Grass,FLAT(0-5%) .96 D,Grass,STEEP(10-20 1.19 Impervious Land Use Acres IMPERVIOUS-FLAT 10.33 Element Flows To: Surface Interfiow Groundwater Pond 3-2 Pond 3-2 Name : Pond 3-2 Bottom Length: 488.00 ft. Bottom Width: 25.00 ft. Depth : 4 ft. Volume at riser head : 1.0650 acre-ft. Side slope 1: 2 To 1 Side slope 2: 2 To 1 Side slope 3: 2 To 1 Side slope 4: 2 To 1 Discharge Structure Riser Height: 3 ft. Riser Diameter: 18 in. Notch Type : Rectangular Notch Width : 1.498 ft. Notch Height: 0.200 ft. Orifice 1 Diameter: 5.282 in. Elevation: 0 ft. Element Flows To: Outlet 1 Outlet 2 Pond Hydraulic Table Stage(ft) Area(ac) Volun'e(ac-ft) Discharge(cfs) Infi1t(cfs) 0.0000 0.280 0.000 0.000 0.000 0.0444 0.282 0.012 0.154 0.000 0.0889 0.284 0.025 0.218 0.000 0.1333 0.286 0.037 0.267 0.000 0.1778 0.288 0.050 0.309 0.000 0.2222 0.290 0.063 0.345 0.000 0.2667 0.292 0.076 0.378 0.000 0.3111 0.294 0.089 0.408 0.000 0.3556 0.296 0.102 0.436 0.000 0.4000 0.299 0.115 0.463 0.000 0.4444 0.301 0.129 0.488 0.000 0.4889 0.303 0.142 0.512 0.000 0.5333 0.305 0.156 0.535 0.000 0.5778 0.307 0.169 0.557 0.000 0.6222 0.309 0.183 0.578 0.000 0.6667 0.311 0.197 0.598 0.000 0.7111 0.313 0.211 0.617 0.000 0.7556 0.315 0.225 0.636 0.000 0.8000 0.318 0.239 0.655 0.000 0.8444 0.320 0.253 0.673. 0.000 0.8889 0.322 0.267 0.690 0.000 0.9333 0.324 0.282 0.707 0.000 0.9778 0.326 0.296 0.724 0.000 1.0222 0.328 0.311 0.740 0.000 1.0667 0.330 0.325 0.756 0.000 1.1111 0.332 0.340 0.772 0.000 1.1556 0.335 0.355 0.787 0.000 1.2000 0.337 0.370 0.802 0.000 1.2444 0.339 0.385 0.817 0.000 1.2889 0.341 0.400 0.831 0.000 1.3333 0.343 0.415 0.846 0.000 1.3778 0.345 0.430 0.860 0.000 1.4222 0.347 0.446 0.873 0.000 1.4667 0.350 0.461 0.887 0.000 1.5111 0.352 0.477 0.900 0.000 1.5556 0.354 0.493 0.913 0.000 1.6000 0.356 0.508 0.926 0.000 1.6444 0.358 0.524 0.939 0.000 1.6889 0.360 0.540 0.952 0.000 1.7333 0.362 0.556 0.964 0.000 1.7778 0.365 0.573 0.977 0.000 1.8222 0.367 0.589 0.989 0.000 1.8667 0.369 0.605 1.001. 0.000 1.9111 0.371 0.622 1.013 0.000 1.9556 0.373 0.638 1.024 0.000 2.0000 0.375 0.655 1.036 0.000 2.0444 0.377 0.672 1.047 0.000 2.0889 0.380 0.688 1.059 0.000 2.1333 0.382 . 0.705 1.070 0.000 2.1778 0.384 0.722 1.081 0.1300 2.2222 0.386 0.740 1.092 0.000 2.2667 0.388 0.757 1.103 0.000 2.3111 0.390 0.774 1.114 0.000 2.3556 0.393 0.792 1.124 0.000 2.4000 0.395 0.809 1.135 0.000 2.4444 0.397 0.827 1.145 0.000 2.4889 0.399 0.844 1.156 0.000 2.5333 0.401 0.862 1.166 0.000 2.5778 . 0.403 0.880 1.176 0.000 2.6222 0.406 0.898 1.186 0.000 2.6667 0.408 0.916 1.196 0.000 2.7111 0.410 0.934 1.206 0.300 2.7556 0.412 0.953 1.216 0.300 2.8000 0.414 0.971 1.226 0.330 2.8444 0.417 0.990 1.282 0.000 2.8889 0.419 1.008 1.377 0.330 2.9333 0.421 1.027 1.497 0.330 2.9778 0.423 1.046 1.637 0.330 3.0222 0.425 1.065 1.767 0.000 3.0667 0.428 1.083 1.980 0.000 3.1111 0.430 1.103 2.278 0.000 3.1556 0.432 1.122 2.643 0.000 1 Li I I I I I I Li I I I I I Li I I I I I I Return Period Flow(cfs) 2 year 2.387751 5 year 4.476949 10 year 5.853604 25 year 7.496455 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 1.195287 5 year 2.549608 10 year 4.172603 25 year 5.334919 I I 3.2000 0.434 1.141 3.062 0.000 3.2444 0.436 1.160 3.530 0.000 3.2889 0.439 1.180 4.042 0.000 3.3333 0.441 1.199 4.594 0.000 3.3778 0.443 1.219 5.184 0.000 3.4222 0.445 1.239 5.808 0.000 3.4667 0.447 1.259 6.466 0.000 3.5111 0.450 . 1.279 7.156 0.000 3.5556 0.452 1.299 7.876 0.000 3.6000 0.454 1.319 8.625 0.000 3.6444 0.456 1.339 9.401 0.000 3.6889 0.458 1.359 10.20 0.000 3.7333 0.461 1.380 11.03 0.000 3.7778 0.463 1.400 11.89 0.000 3.8222 0.465 1.421 12.76 0.000 3.8.667 0.467 1.442 13.67 0.000 3.9111 0.469 1.463 14.59 0.000 3.9556 0.472 1.484 15.54 0.000 4.0000 0.474 1.505 16.51 0.000 4.0444 0.476 1.526 17.51 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped. POC #1 I I POC #1 The Facility PASSED The Facility PASSED. Flow(cfs) Predev Mit Percentage Pass/Fail 1.1939 113 106 93 Pass 1.2409 105 85 80 Pass 1.2880 100 77 77 Pass 1.3351 97 69 71 Pass 1.3821 91 65 71 Pass 1.4292 88 57 64 Pass 1.4763 84 52 61 Pass 1.5234 80 48 60 Pass I I I 1.5704 80 45 56 Pass 1.6175 75 43 57 Pass 1.6646 74 41 55 Pass 1.7116 71 37 52 Pass 1.7587 68 37 54 Pass 1.8058 63 36 57 Pass 1.8528 60 34 56 Pass 1.8999 57 31 54 Pass 1.9470 54 29 53 Pass 1.9940 52 27 51 Pass 2.0411 48 27 56 Pass 2.0882 46 26 56 Pass 2.1352 45 26 57 ?ass 2.1823 45 26 57 Pass 2.2294 42 26 61 Pass 2.2764 42 23 54 Pass 2.3235 39 23 58 Pass 2.3706 36 23 63 Pass 2.4176 34 23 67 Pass 24647 31 22 70 Pass 2.5118 31 21 67 Pass 2.5588 30 20 66 Pass 2.6059 27 19 70 Pass 2.6530 27 19 70 Pass 2.7001 27 17 62 Pass 2.7471 25 16 64 Pass 2.7942 24 15 62 Pass 2.8413 24 15 62 Pass 2.8883 21 14 66 Pass 2.9354 20 14 70 Pass 2.9825 20 13 65 Pass 3.0295 20 13 65 Pass 3.0766 20 13 65 Pass 3.1237 19 13 68 Pass 3.1707 19 13 68 Pass 3.2178 19 13 68 Pass 3.2649 18 12 66 Pass 3.3119 18 12 66 Pass 3.3590 17 12 70 Pass 3.4061 16 12 .75 Pass 3.4531 16 12 75 Pass 3.5002 16 12 75 Pass 3.5473 16 12 75 Pass 3.5943 15 12 80 Pass 3.6414 15 12 80 Pass 3.6885 15 12 80 Pass 3.7355 15 12 80 Pass 3.7826 15 11 73 Pass 3.8297 15 11 73 Pass 3.8767 15 11 73 Pass 3.9238 15 10 66 Pass 3.9709 15 10 66 Pass 4.0180 15 10 66 Pass 4.0650 13 10 76 Pass 4.1121 13 9 69 Pass 4.1592 12 8 66 Pass 4.2062 12 8 . 66 Pass I I I I I 1 I I I I I I I I L I I Fl I 4.2533 12 8 66 Pass 4.3004 11 8 72 Pass 4.3474 11 8 72 Pass 4.3945 11 8 72 Pass 4.4416 10 8 80 Pass 4.4886 9 8 88 Pass 4.5357 8 8 100 Pass 4.5828 8 7 87 Pass 4.6298 7 6 85 Pass 4.6769 7 5 71 Pass 4.7240 7 5 71 Pass 4.7710 6 5 83 Pass 4.8181 6 5 83 Pass 4.8652 5 5 100 Pass 4.9122 5 5 100 Pass 4.9593 5 5 100 Pass 5.0064 5 5 100 Pass 5.0534 5 5 100 Pass 5.1005 5 5 100 Pass 5.1476 5 5 100 Pass 5.1947 5 5 100 Pass 5.2417 5 4 80 Pass 5.2888 5 4 80 Pass 5.3359 5 4 80 Pass 5.3829 5 4 80 Pass 5.4300 5 3 60 Pass 5.4771 5 3 60 Pass 5.5241 5 3 60 Pass 5.5712 5 3 60 Pass 5.6183 5 3 60 Pass 5.6653 5 3 60 Pass 5.7124 5 3 60 Pass 5.7595 5 3 60 Pass 5.8065 4 3 75 Pass 5.8536 4 3 75 Pass 1 I Water Quality BMP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. I Adjusted for 15 mm: 0 cfs. Off-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. Perind and Impind Changes No changes have been made. This program and accompanying documentation is provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. Clear Creek Solutions, Inc. disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions, Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions, Inc. has been advised of the possibility of such damages. I I I I L I I I I I I I I I I I I I I I I I I I I I I I I I I SDHM2 011. PROJECT REPORT Project Name: QCPOC3-3 Site Name Site Address: City Report Date : 3/5/2012 Gage : OCEANS ID Data Start : 10/01/1959 Data End : 09/30/2004 Precip Scale: 1.00 Version : 2012/03/01 PREDEVELOPED LAND USE Name : SOC 3-3 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) 3.17 A,Grass,MOD(5-10%) .01 A,Grass,STEEP(10-20 .05 D,Grass,FLAT(O-5%) 2.24 Impervious Land Use Acres IMPERVIOUS-FLAT 1 IMPERVIOUS-MOD 0.1 Element Flows To: Surface Interflow MITIGATED LAND USE Name : SOC 3-3 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) .66 A,Grass,STEEP(10-20 .62 B,Grass,FLAT(0-5%) .38 D,Grass,FLAT(O-5%) .61 D,Grass,STEEP(10-20 .08 Impervious Land Use Acres Groundwater I] IMPERVIOUS-FLAT 4.7 I Element Flows To: Surface Interfiow Groundwater Pond 3-3 Pond 3-3 Name : Pond 3-3 Bottom Length: 232.00 ft. Bottom Width: 13.00 ft. Depth : 5 ft. Volume at riser head : 0.6534 acre-ft. Side slope 1: 2 To 1 Side slope 2: 2 To 1 Side slope 3: 2 To 1 Side slope 4: 2 To 1 Discharge Structure Riser Height: 5 ft. Riser Diameter: 18 in. Notch Type : Rectangular Notch Width : 1.130 ft. Notch Height: 0.770 ft. Orifice 1 Diameter: 3.099 in. Elevation: 0 ft. Element Flows To: Outlet 1 Outlet 2 Pond Hydraulic Table Stage(ft) Area(ac) Volunte(ac-ft) Discharge(cfs) Infi1t(cfs) 0.0000 0.069 0.000 0.000 0.000 0.0556 0.070 0.003 0.059 0.000 0.1111 0.071 0.007 0.084 0.000 0.1667 0.073 0.011 0.103 0.000 0.2222 0.074 0.015 0.118 0.000 0.2778 0.075 0.020 0.132 0.000 0.3333 0.076 0.024 0.145 0.000 0.3889 0.078 0.028 0.157 0.000 0.4444 0.079 0.033 0.168 0.000 0.5000 0.080 0.037 0.178 0.000 0.5556 0.081 0.042 0.188 0.000 0.6111 0.083 0.046 0.197 0.000 0.6667 0.084 0.051 0.205 0.000 0.7222 0.085 0.055 0.214 0.000 0.7778 0.087 0.060 0.222 0.000 0.8333 0.088 0.065 0.230 0.000 0.8889 0.089 0.070 0.237 0.000 0.9444 0.090 0.075 0.245 0.000 1.0000 0.092 0.080 0.252 0.000 1.0556 0.093 0.085 0.259 0.000 I] 1 I I I I I I[I I I 1 I] I I I I 1.1111 0.094 0.091 0.265 0.000 1.1667 0.096 0.096 0.272 0.000 1.2222 0.097 0.101 0.278 0.000 1.2778 0.098 0.107 0.285 0.000 1.3333 0.099 0.112 0.291 0.000 1.3889 0 .,101 0.118 0.297 0.000 1.4444 0.102 0.123 0.303 0.000 1.5000 0.103 0.129 0.308 0.000 1.5556 0.105 0.135 0.314 0.000 1.6111 0.106 0.141 0.320 0.000 1.6667 0.107 0.147 0.325 0.000 1.7222 0.109 0.153 0.331 0.000 1.7778 0.110 0.159 0.336 0.000 1.8333 0.111 0.165 0.341 0.000 1.8889 0.113 0.171 0.346 0.000 1.9444 0.114 0.178 0.351 0.000 2.0000 0.115 0.184 0.356 0.000 2.0556 0.117 0.190 0.361 0.000 2.1111 0.118 0.197 0.366 0.000 2.1667 0.119 0.204 0.371 0.000 2.2222 0.121 0.210 0.376 0.000 2.2778 0.122 0.217 0.380 0.000 2.3333 0.123 0.224 0.385 0.000 2.3889 0.125 0.231 0.389 0.000 2.4444 0.126 0.238 0.394 0.000 2.5000 0.127 0.245 0.398 0.000 2.5556 0.129 0.252 0.403 0.000 2.6111 0.130 0.259 0.407 0.000 2.6667 0.131 0.266 0.411 0.000 2.7222 0.133 0.274 0.416 0.000 2.7778 0.134 0.281 0.420 0.000 2.8333 0.135 0.289 0.424 0.000 2.8889 0.137 0.296 0.428 0.000 2.9444 0.138 0.304 0.432 0.000 3.0000 0.140 0.312 . 0.436 0.000 3.0556 0.141 0.320 0.440 0.000 3.1111 0.142 0.328 0.444 0.000 3.1667 0.144 0.335 0.448 0.000 3.2222. 0.145 0.344 0.452 0.000 3.2778 0.146 0.352 0.456 0.000 3.3333 0.148 0.360 0.460 0.000 3.3889 0.149 0.368 0.464 0.000 3.4444 0.151 0.376 0.468 0.000 3.5000 0.152 0.385 0.471 0.000 3.5556 0.153 0.393 0.475 0.000 3.6111 0.155 0.402 0.479 0.000 3.6667 0.156 0.411 . 0.483 0.000 3.7222 0.158 0.419 0.486 0.000 3.7778 0.159 0.428 0.490 0.000 3.8333 0.160 0.437 0.493 0.000 3.8889 0.162 0.446 0.497 0.000 3.9444 0.163 0.455 0.501 0.000 4.0000 0.165 0.464 0.504 0.000 4.0556 0.166 0.474 0.508 0.000 4.1111 0.167 0.483 0.511 0.000 4.1667 0.169 0.492 0.514 0.000 4.2222 0.170 0.502 0.518 0.000 1 I I I I I I I Li I I Li I I 1 1 LI I I I I I I I I I I I I I I I 1 I I I I I 4.2778 0.172 0.511 0.561 0.000 4.3333 0.173 0.521 0.650 0.000 4.3889 0.175 0.530 0.766 0.000 4.4444 0.176 0.540 0.905 0.000 4.5000 0.177 0.550 1.063 0.000 4.5556 0.179 0.560 1.237 0.000 4.6111 0.180 0.570 1.427 0.000 4.6667 0.182 0.580 1.630 0.000 4.7222 0.183 0.590 1.847 0.000 4.7778 0.185 0.600 2.076 0.000 4.8333 0.186 0.611 2.318 0.000 4.8889 0.188 0.621 2.570 0.000 4.9444 0.189 0.632 2.833 0.000 5.0000 0.190 0.642 3.106 0.000 5.0556 0.192 0.653 3.300 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 1.017603 5 year 1.922647 10 year 2.690448 25 year 3.476202 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0.48659 5 year 0.924903 10 year 1.833996 25 year 2.273323 POC #1 The Facility PASSED The Facility PASSED. Flow(cfs) Predev Mit Percentage Pass/Fail 0.5088 111 90 81 Pass 0.5308 104 66 63 Pass 0.5529 98 59 60 Pass 0.5749 92 56 60 Pass 0.5969 87 55 63 Pass 0.6190 83 49 59 Pass 0.6410 75 45 60 Pass 0.6631 72 43 59 Pass 0.6851 72 39 54 Pass 0.7071 65 39 60 Pass 0.7292 63 34 53 Pass 0.7512 58 33 56 Pass 0.7732 55 32 58 Pass 0.7953 52 32 61 Pass 0.8173 49 31 63 Pass 0.8394 48 31 64 Pass 0.8614 46 30 65 Pass 0.8834 43 26 60 Pass 0.9055 41 24 58 Pass 0.9275 39 22 56 Pass 0.9495 39 21 53 Pass 0.9716 39 20 51 Pass 0.9936 38 20 52 Pass 1.0156 36 19 52 Pass 1.0377 33 18 54 Pass 1.0597 29 18 62 Pass 1.0818 29 17 58 Pass 1.1038 26 17 65 Pass 1.1258 26 17 65 Pass 1.1479 24 17 70 Pass 1.1699 23 16 69 Pass 1.1919 22 16 72 Pass 1.2140 22 16 72 Pass 1.2360 21 16 76 Pass 1.2581 20 16 80 Pass 1.2801 20 15 75 Pass 1.3021 20 15 75 Pass 1.3242 19 14 73 Pass 1.3462 18 13 72 Pass 1.3682 17 12 70 Pass 1.3903 14 12 85 Pass 1.4123 13 11 84 Pass 1.4343 13 11 84 Pass 1.4564 12 11 91 Pass 1.4784 12 11 91 Pass 1.5005 12 11 91 Pass 1.5225 12 10 83 Pass 1.5445 12 10 83 Pass 1.5666 12 10 83 Pass 1.5886 11 10 90 Pass 1.6106 11 10 90 Pass 1.6327 11 9 81 Pass 1.6547 11 9 81 Pass 1.6768 11 9 81 Pass 1.6988 11 9 81 Pass 1.7208 11 9 81 Pass 1.7429 11 9 81 Pass 1.7649 10 9 90 Pass 1.7869 10 9 90 Pass 1.8090 10 9 90 Pass 1.8310 10 8 80 Pass 1.8530 10 8 80 Pass 1.8751 10 7 70 Pass 1.8971 9 7 77 Pass 1.9192 9 7 77 Pass 1.9412 9 7 77 Pass 1:9632 8 5 62 Pass 1.9853 8 5 62 Pass 2.0073 8 5 62 Pass 2.0293 8 5 62 Pass I I I I I I I I I I I I I P L L L I I I 2.0514 7 4 57 Pass 2.0734 6 4 66 Pass 2.0955 6 4 66 Pass 2.1175 6 4 66 Pass 2.1395 6 4 66 Pass 2.1616 6 4 66 Pass 2.1836 5 4 80 Pass 2.2056 5 4 80 Pass 2.2277 5 4 80 Pass 2.2497 5 4 80 Pass 2.2717 5 4 80 Pass 2.2938 5 4 80 Pass 2.3158 5 4 80 Pass 2.3379 5 4 80 Pass 2.3599 5 4 80 Pass 2.3819 5 3 60 Pass 2.4040 5 3 60 Pass 2.4260 5 2 40 Pass 2.4480 5 2 40 Pass 2.4701 5 2 40 Pass 2.4921 5 2 40 Pass 2.5142 5 2 40 Pass 2.5362 5 2 40 Pass 2.5582 5 2 40 Pass 2.5803 5 2 40 Pass 2.6023 5 2 40 Pass 2.6243 5 2 40 Pass 2:6464 5 2 40 Pass 2.6684 4 2 50 Pass 2.6904 4 2 50 Pass I Water Quality BMP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. Off-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. Perind and Impind Changes No changes have been made. I This program and accompanying documentation is provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. clear creek Solutions, Inc. disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall clear creek Solutions, Inc. I be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if clear creek Solutions, Inc. has been advised of the possibility of such damages. I I I I I I I Li I Li Li I 1 I 1 I I I I I I I I I I I I I I I I I I I SDHM2O11 PROJECT REPORT Project Name: QCPOC3-7 Site Name : Quarry Creek Site Address: City Report Date : 3/5/2012 Gage : OCEANSID Data Start : 10/01/1959 Data End : 09/30/2004 Precip Scale: 1.00 Version : 2012/03/01 PREDEVELOPED LAND USE Name : POC 3-7 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) 1.14 A,Grass,MOD(5-10%) .01 A,Grass,STEEP(10-20 .41 D,Grass,STEEP(10-20 .02 Impervious Land Use Acres IMPERVIOUS-FLAT 0.26 IMPERVIOUS-MOD 0.16 Element Flows To: Surface Interflow MITIGATED LAND USE Name : POC 3-7 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) .73 A,Grass,STEEP(10-20 .52 D,Grass,STEEP(10-20 .03 Impervious Land Use Acres IMPERVIOUS-FLAT 0.73 Groundwater I I I Element Flows To: Surface Interf low Pond 3-7 Pond 3-7 I Name : Pond 3-7 I Bottom Length: 28.00 ft. Bottom Width: 28.00 ft. Depth : 4 ft. Volume at riser head : 0.0813 acre-ft. Side slope 1: 2 To 1 Side slope 2: 2 To 1 Side slope 3: 2 To 1 Side slope 4: 2 To 1 Discharge Structure Riser Height: 3 ft. Riser Diameter: 18 in. Notch Type : Rectangular Notch Width : 0.260 ft. Notch Height: 0.891 ft. Orifice 1 Diameter: 2.013 in Elevation: 0 ft. Element Flows To: Outlet 1 Outlet 2 I 71 Groundwater Pond Hydraulic Table Stage(ft) Area(ac) Volume(ac-ft) Discharge(cfs) Infi1t(cfs) 0.0000 0.018 0.000 0.000 0.000 0.0444 0.018 0.000 0.022 0.000 0.0889 0.018 0.001 0.031 0.000 0.1333 0.018 0.002 0.038 0.000 0.1778 0.018 0.003 0.044 0.000 0.2222 0.019 0.004 0.050 0.000 0.2667 0.019 0.005 0.055 0.000 0.3111 0.019 0.005 0.059 0.000 0.3556 0.019 0.006 0.063 0.000 0.4000 0.020 0.007 0.067 0.000 0.4444 0.020 0.008 0.071 0.000 0.4889 0.020 0.009 0.074 0.000 0.5333 0.020 0.010 0.077 0.000 0.5778 0.021 0.011 0.080 0.000 0.6222 0.021 0.012 0.083 0.000 0.6667 0.021 0.013 0.086 0.000 0.7111 0.021 0.014 0.089 0.000 0.7556 0022 0.015 0.092 0.000 0.8000 0.022 0.016 0.095 0.000 0.8444 0.022 0.017 0.097 0.000 0.8889 0.022 0.018 0.100 0.000 0.9333 0.023 0.019 0.102 0.000 I I I I Li I I I 0.9778 0.023 0.020 0.105 0.000 1.0222 0.023 0.021 0.107 0.000 1.0667 0.023 0.022 0.109 0.000 1.1111 0.024 0.023 0.112 0.000 1.1556 0.024 0.024 0.114 0.000 1.2000 0.024 0.025 0.116 0.000 1.2444 0.025 0.026 0.118 0.000 1.2889 0.025 0.027 0.120 0.000 1.3333 0.025 0.028 0.122 0.000 1.3778 0.025 0.030 0.124 0.000 1.4222 0.026 0.031 0.126 0.000 1.4667 0.026 0.032 0.128 0.000 1.5111 0.026 0.033 0.130 0.000 1.5556 0.026 0.034 0.132 0.000 1.6000 0.027 0.035 0.134 0.000 1.6444 0.027 0.037 0.136 0.000 1.6889 0.027 0.038 0.138 0.000 1.7333 0.028 0.039 0.140 0.000 1.7778 0.028 0.040 0.141 0.000 1.8222 0.028 0.042 0.143 0.000 1.8667 0.028 0.043 0.145 0.000 1.9111 0.029 0.044 0.147 0.000 1.9556 0.029 0.045 0.148 0.000 2.0000 0.029 0.047 0.150 0.000 2.0444 0.030 0.048 0.152 0.000 2.0889 0.030 0.049 0.153 0.000 2.1333 0.030 0.051 0.158 0.000 2.1778 0.030 0.052 0.172 0.000 2.2222 0.031 0.054 0.190 0.000 2.2667 0.031 0.055 0.212 0.000 2.3111 0.031 0.056 0.237 0.000 2.3556 0.032 0.058 0.264 0.000 2.4000 0.032 0.059 0.292 0.000 2.4444 0.032 0.061 0.323 0.000 2.4889 0.033 0.062 0.355 0.000 2.5333 0.033 0.064 0.388 0.000 2.5778 0.033 0.065 0.422 0.000 2.6222 0.034 0.067 0.458 0.000 2.6667 0.034 0.068 0.494 0.000 2.7111 0.034 0.070 0.531 0.000 2.7556 0.035 0.071 0.568 0.000 2.8000 0.035 0.073 0.606 0.000 2.8444 0.035 0.074 0.645 0.000 2.8889 0.035 0.076 0.684 0.000 2.9333 0.036 0.078 0.723 0.000 2.9778 0.036 0.079 0.762 0.000 3.0222 0.036 0.081 0.831 0.000 3.0667 0.037 0.082 1.036 0.000 3.1111 0.037 0.084 1.327 0.000 3.1556 0.037 0.086 1.683 0.000 3.2000 0.038 0.087 2.095 0.000 3.2444 0.038 0.089 2.555 0.000 3.2889 0.038 0.091 3.059 0.000 3.3333 0.039 0.093 3.604 0.000 3.3778 0.039 0.094 4.186 0.000 3.4222 0.039 0.096 4.803 0.000 3.4667 0.040 0.098 5.453 0.000 Li I I I I H I H I I I I I I I I I I 3.5111 0.040 0.100 6.135 0.000 3.5556 0.040 0.102 6.848 0.000 3.6000 0.041 0.103 7.589 0.000 3.6444 0.041 0.105 8.359 0.000 3.6889 0.042 0.107 9.155 0.000 3.7333 0.042 0.109 9.978 0.000 3.7778 0.042 0.111 10.82 0.000 3.8222 0.043 0.113 11.69 0.000 3.8667 0.043 0.115 12.59 0.000 3.9111' 0.043 0.117 13.51 0.000 3.9556 0.044 0.119 14.45 0.000 4.0000 0.044 0.121 15.42 0.000 4.0444 0.044 0.123 16.40 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow(cfs) 2 year 0.309411 5 year 0.570519 10 year 0.807954 25 year 1.041506 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 0.152638 5 year 0.396699 10 year 0.5264 62 25 year 0.70775 POC #1 The Facility PASSED The Facility PASSED. Flow(cfs) Predev Nit Percentage Pass/Fail 0.1547 157 65 41 Pass 0.1613 139 61 43 Pass 0.1679 117 53 45 Pass 0.1745 109 48 44 Pass 0.1811 105 48 45 Pass 0.1877 99 42 42 Pass 0.1943 98 38 38 Pass 0.2009 95 37 38 Pass 0.2075 84 36 42 Pass 0.2141 76 36 47 Pass 0.2207 72 32 44 Pass 0.2273 67 31 46 Pass 0.2339 - 63 31 49 Pass 0.2405 60 31 51 Pass 0.2471 55 30 54 Pass I I I I I I I I I I I I I I I I I I I 0.2537 52 30 57 Pass 0.2603 48 30 62 Pass 0.2669 45 29 64 Pass 0.2735 45 28 62 Pass 0.2801 45 .28 62 Pass 0.2867 43 25 58 Pass 0.2933 40 24 60 Pass 0.2999 37 24 64 Pass 0.3065 35 23 65 Pass 0.3131 32 22 68 Pass 0.3197 31 22 70 Pass 0.3263 29 22 75 Pass 0.3329 29 22 75 Pass 0.3395 28 21 75 Pass 0.3461 27 21 77 Pass 0.3527 25 21 84 Pass 0.3593 25 20 80 Pass 0.3659 24 20 83 Pass 0.3725 24 20 83 Pass 0.3791 24 20 83 Pass 0.3857 24 19 79 Pass 0.3923 . 22 17 77 Pass 0.3988 20 17 85 Pass 0.4054 18 17 94 Pass 0.4120 18 15 83 Pass 0.4186 18 14 77 Pass 0.4252 17 14 82 Pass 0.4318 16 13 81 Pass 0.4384 15 10 66 . Pass 0.4450 15 10 66 Pass 0.4516 15 8 53 'Pass 0.4582 14 8 57 Pass 0.4648 14 8 57 Pass 0.4714 13 8 61 Pass 0.4780 12 8 66 Pass 0.4846 12 8 66 Pass 0.4912 12 8 66 Pass 0.4978 12 7 58 Pass 0.5044 12 7 58 Pass 0.5110 12 7 58 Pass 0.5176 12 7 58 Pass 0.5242 11 6 54 Pass 05308 10 6 60 Pass 0.5374 10 6 60 Pass 0.5440 110 6 60 Pass 0.5506 10 6 60 Pass 0.5572 10 6 60 Pass 0.5638 9 6 66 Pass 0.5704 9 6 66 Pass 0.5770 9 6 66 Pass 0.5836 8 6 75 Pass 0.5902 8 6 75 Pass 0.5968 8 6 75 Pass 0.6034 7 5 71 Pass 0.6100 6 5 83 Pass 0.6166 6 5 83 Pass 0.6232 6 5 83 Pass I I 0.6298 6 5 83 Pass 0.6364 6 5 83 Pass 0.6430 6 5 83 Pass I 0.6496 6 5 83 Pass 0.6562 5 5 100 Pass 0.6628 5 5 100 Pass 0.. 6694 5 5 100 Pass I 0.6760 5 5 100 Pass 0.6826 5 5 100 Pass 0.6892 5 5 100 Pass I 0.6958 5 4 80 Pass 0.7024 5 4 80 Pass 0.7090 5 4 80 Pass 0.7156 5 2 40 Pass I 0.7222 5 2 40 Pass 0.7288 5 2 40 Pass 0.7354 5 2 40 Pass 0.7420 5 2 40 Pass I 0.7486 5 2 40 Pass 0.7552 5 2 40 Pass I 0.7618 0.7684 5 5 2 2 40 40 Pass Pass 0.7750 5 2 40 Pass 0.7816 5 2 40 Pass 0.7882 5 2 40 Pass I 0.7948 5 2 40 Pass 0.8014 4 2 50 Pass 0.8080 4 2 50 Pass I Water Quality EMP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. I Off-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. I Perind and Impind Changes No changes have been made. This program and accompanying documentation is provided as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. Clear Creek Solutions, Inc. disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions, Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions, Inc. has been advised of the possibility of such damages. I I I I 1 I 1 I I I I I I I, 1 I I I 1 U I I I I I SDHM2 011 PROJECT REPORT Project Name: QCPOC4 Site Name : Quarry Creek Site Address: City Report Date : 3/5/2012 Gage : OCEANSID Data Start : 10/01/1959 Data End : 09/30/2004 Precip Scale: 1.00 Version : 2012/03/01 PREDEVELOPED LAND USE Name : POC4 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) .52 A,Grass,MOD(5-10%) .01 B,Grass,FLAT(0-5%) 3.02 B,Grass,MOD(5-10%) .93 B,Grass,STEEP(10-20 1.06 D,Grass,FLAT(0-5%) 4.63 D,Grass,MOD(5-10%) 1.39 D,Grass,STEEP(10-20 12.72 Impervious Land Use Acres IMPERVIOUS-FLAT 1.62 IMPERVIOUS-MOD 0.48 Element Flows To: Surface Interflow MITIGATED LAND USE Name : 50C4 Bypass: No GroundWater: No Pervious Land Use Acres A,Grass,FLAT(0-5%) .07 B,Grass,FLAT(0-5%) .9 D,Grass,FLAT(0-5%) 4.22 Groundwater D Grass , STEEP (10-20 Impervious Land Use Acres IMPERVIOUS-FLAT 19.33 Element Flows To: Surface Interflow Groundwater Pond 4 Pond 4 Name : Pond 4 Bottom Length: 540.00 ft. Bottom Width: 40.00 ft. Depth : 5 ft. Volume at riser head : 2.4572 acre-ft. Side slope 1: 2 To 1 Side slope 2: 2 To 1 Side slope 3: 2 To 1 Side slope 4: 2 To 1 Discharge Structure Riser Height: 4 ft. Riser Diameter: 18 Notch Type : Rectangular Notch Width : 1.500 ft. Notch Height: 0.822 ft. Orifice 1 Diameter: 7.491 in. Elevation: 0 ft. Element Flows To: Outlet 1 Outlet 2 Pond Hydraulic Table Stage(ft) Area(ac) Volume(ac-ft) Discharge(cf s) Infi1t(cfs) 0.0000 0.495 0.000 0.000 0.000 0.0556 0.498 0.027 0.347 0.000 0.1111 0.501 0.055 0.491 0.000 0.1667 0.504 0.083 0.601. 0.000 0.2222 0.507 0.111 0.694 0.000 0.2778 0.510 0.139 0.776 0.000 0.3333 0.513 0.168 0.850 0.000 0.3889 0.516 0.196 0.919 0.000 0.4444 0.519 0.225 0.982 0.000 0.5000 0.522 0.254 1.042 0.000 0.5556 0.525 0.283 1.098 0.000 0.6111 0.528 0.313 1.152 0.000 0.6667 0.531 0.342 1.203 0.000 0.7222 0.534 0.372 1.252 0.000 0.7778 0.537 0.401 1.299 0.000 0.8333 0.540 0.431 1.345 0.000 0.8889 0.543 0.461 1.389 0.000 0.9444 0.546 0.492 1.432 0.000 1.0000 0.549 0.522 1.473 0.000 1.0556 0.552 0.553 1.514 0.000 1.1111 0.555 0.584 1.553 0.000 1.1667 0.558 0.615 1.591 0.000 1.2222 0.561 0.646 1.629 0.000 1.2778 0.564 0.677 1.666 0.000 1.3333 0.567 0.708 1.701 0.000 1.3889 0.570 0.740 1.736 0.000 1.4444 0.573 0.772 1.771 0.000 1.5000 0.576 0.804 1.805 0.000 1.5556 0.579 0.836 1.838 0.000 1.6111 0.582 0.868 1.870 0.000 1.6667 0.585 0.901 1.902 0.000 1.7222 0.588 0.933 1.934 0.000 1.7778 0.591 0.966 1.965 0.000 1.8333 0.594 0.999 1.995 0.000 1.8889 0.597 1.032 2.025 0.000 1.9444 0.600 1.065 2.055 0.000 2.0000 0.603 1.099 2.084 0.000 2.0556 0.606 1.132 2.113 0.000 2.1111 0.609 1.166 2.141 0.000 2.1667 0.613 1.200 2.169 0.000 2.2222 0.616 1.234 2.197 0.000 2.2778 0.619 1.269 2.224 0.000 2.3333 0.622 1.303 2.251 0.000 2.3889 0.625 1.338 2.277 0.000 2.4444 0.628 1.373 2.304 0.000 2.5000 0.631 1.408 2.330 0.000 2.5556 0.634 1.443 2.356 0.000 2.6111 0.637 1.478 2.381 0.000 2.6667 0.640 1.514 2.406 0.000 2.7222 0.643 1.549 2.431 0.000 2.7778 0.646 1.585 2.456 0.000 2.8333 0.649 1.621 2.480 0.000 2.8889 0.652 1.657 2.505 0.000 2.9444 0.655 1.694 2.529 0.000 3.0000 0.659 1.730 2.552 0.000 3.0556 0.662 1.767 2.576 0.000 3.1111 0.665 1.804 2.599 0.000 3.1667 0.668 1.841 2.622 0.000 3.2222 0.671 1.878 2.692 0.000 3.2778 0.674 1.915 2.826 0.000 3.3333 0.677 1.953 2.997 0.000 3.3889 0.680 1.991 3.198 0.000 3.4444 0.683 2.028 3.423 0.000 3.5000 0.686 2.067 3.671 0.000 3.5556 0.689 2.105 3.939 0.000 3.6111 0.693 2.143 4.226 0.000 3.6667 0.696 2.182 4.530 0.000 3.7222 0.699 2.221 4.851 0.000 3.7778 0.702 2.259 5.187 0.000 3.8333 0.705 2.299 5.538 0.000 3.8889 0.708 2.338 5.903 0.000 3.9444 0.711 2.377 6.281 0.000 4.0000 0.714 2.417 6.673 0.000 4.0556 0.717 2.457 6.884 0.000 1 I I I Li I I I I I I Ll I I I I I I 4.1111 0.721 2.497 7.254 0.000 4.1667 0.724 2.537 7.727 0.000 4.2222 0.727 2.577 8.284 0.000 4.2778 0.730 2.618 8.912 0.000 4.3333 0.733 2.658 9.604. 0.000 4.3889 0.736 2.699 10.35 0.000 4.4444 0.739 2.740 11.16 0.000 4.5000 0.743 2.781 12.01 0.000 4.5556 0.746 2.823 12.92 0.000 4.6111 0.749 2.864 13.86 0.000 4.6667 0.752 2.906 14.86 0.000 4.7222 0.755 2.948 15.89 0.000 4.7778 0.758 2.990 16.96 0.000 4.8333 0.761 3.032 18.07 0.000 4.8889 0.765 3.075 19.22 0.000 4.9444 0.768 3.117 20.41 0.000 5.0000 0.771 3.160 21.62 0.000 5.0556 0.774 3.203 22.88 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow (Cf s) 2 year 5.253411 5 year 10.072032 10 year 12.299347 25 year 15.765648 Flow Frequency Return Periods for Mitigated. POC #1 Return Period Flow(cfs) 2 year 2.497558 5 year 3.968278 10 year 6.568882 25 year 7.801823 POC #]. The Facility PASSED The Facility PASSED. Flow(cf s) Predev Mit Percentage Pass/Fail 2.6267 109 81 74 Pass 2.7244 105 65 61 Pass 2.8221 102 54 52 Pass 2.9198 95 49 51 Pass 3.0175 92 46 50 Pass 3.1152. 87 42 48 Pass 3.2129 81 37 45 Pass 3.3106 78 35 44 Pass 3.4083 74 34 45 Pass 3.5060 73 33 45 Pass 3.6037 73 32 43 Pass 3.7014 72 30 41 Pass 3.7991 68 30 44 Pass 3.8969 67 27 40 Pass 3.9946 63 26 41 Pass 4.0923 60 25 41 Pass 4.1900 58 23 39 Pass 4.2877 57 21 36 Pass 4.3854 55 19 34 Pass 4.4831 53 18 33 Pass 4.5808 48 17 35 Pass 4.6785 46 17 36 Pass 4.7762 44 17 38 Pass 4.8739 44 17 38 Pass 4.9716 44 17 38 Pass 5.0693 41 16 39 Pass 5.1670 39 14 35 Pass 5.2647 35 13 37 Pass 5.3624 33 12 36 Pass 5.4601 31 11 35 Pass 5.5578 30 10 33 Pass 5.6555 27 10 37 Pass 5.7532 27 10 37 Pass 5.8509 27 10 37 Pass 5.9486 27 10 37 Pass 6.0463 25 10 40 Pass 6.1440 24 10 41 Pass 6.2417 23 10 43 Pass 6.3394 23 9 39 Pass 6.4371 22 9 40 Pass 6.5348 22 7 31 Pass 6.6325 21 7 33 Pass 6.7303 21 7 33 Pass 6.8280 21 7 33 Pass 6.9257 20 7 35 Pass 7.0234 20 7 35 Pass 7.1211 20 7 35 Pass 7.2188 19 7 36 Pass 7.3165 18 7 38 Pass 7.4142 17 7 41 Pass 7.5119 16 7 43 Pass 7.6096 16 7 43 Pass 7.7073 15 4 26 Pass 7.8050 15 4 26 Pass 7.9027 15 3 20 Pass 8.0004 15 3 20 Pass 8.0981 15 3 20 Pass 8.1958 15 3 20 Pass 8.2935 15 2 13 Pass 8.3912 15 2 13 Pass 8.4889 15 2 13 Pass 8.5866 15 2 13 Pass 8.6843 15 2 13 Pass 8.7820 15 2 13 Pass 8.8797 15 2 13 Pass 8.9774 15 2 13 Pass 9.0751 14 2 14 Pass I I I Li I I I [ii Li I 1 I 1 1 I Li I 1 1 9.1728 14 2 14 Pass 9.2705 14 2 14 Pass I 9.3682 9.4659 14 14 2 2 14 14 Pass Pass 9.5637 14 2 . 14 Pass 9.6614 12 2 16 Pass 9.7591 11 2 18 Pass I 9.8568 9 2 22 Pass 9.9545 9 2 22 Pass 10.0522 9 2 22 Pass I 10.1499 9 2 22 Pass 10.2476 9 2 22 Pass 10.3453 7 2 28 Pass 10.4430 6 2 33 Pass I 10.5407 6 2 33 Pass 10.6384 6 2 33 Pass 10.7361 5 2 40 Pass I 10.8338 5 2 40 Pass 10.9315 5 2 40 Pass 11.0292 5 2 40 Pass I 11.1269 11.2246 5 5 2 2 40 40 Pass Pass 11.3223 5 2 40 Pass 11.4200 5 2 40 Pass 11.5177 5 2 40 Pass I 11.6154 5 2 40 Pass 11.7131 5 2 40 Pass 1 11.81085 11.9085 5 2 2 40 40 Pass Pass 12.0062 5 2 40 Pass 12.1039 5 2 40 Pass 12.2016 4 2 50 Pass I 12.2993 4 2 50 Pass Water Quality BMP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet On-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. Off-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. Perind and Impind Changes No changes have been made. This program and accompanying documentation is provided I as-is without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. Clear Creek Solutions, Inc. disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions, Inc. be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions, Inc. has been advised of the possibility of such damages. I I SDHM2011 PROJECT REPORT Project Name: QC P005 I 1 I I 1 I I I I I I I 1 I I I I I I Site Name : Quarry Creek Site Address: City Report Date : 3/5/2012 Gage •: OCEANSID Data Start : 10/01/1959 Data End : 09/30/2004 Precip Scale: 1.00 Version : 2012/03/01 PREDEVELOPED LAND USE Name : P005 Bypass: No GroundWater: No Pervious Land Use Acres D , Grass , FLAT (0-5%) 62 D,Grass ,MOD(5-10%) 1.09 D, Grass, STEEP (10-20 11 .04 Impervious Land Use Acres Element Flows To: Surface Interf low MITIGATED LAND USE Name : 2005 Bypass: No GroundWater: No Pervious Land Use Acres D,Grass,FLAT(0-5%) 2.82 Impervious Land Use Acres IMPERVIOUS-FLAT 9.28 Element Flows To: Surface Interf low Groundwater Groundwater Pond 5 Pond 5 I Name : Pond 5 Bottom Length: 380.00 ft. Bottom Width: 48.00 ft. Depth : 5 ft. Volume at riser head : 2.0296 acre-ft. Side slope 1: 2 To 1 I Side slope 2: 2 To 1 Side slope 3: 2 To 1 Side slope 4: 2 To 1 Discharge Structure I Riser Height: 4 ft. Riser Diameter: 18 in. Notch Type : Rectangular Notch Width : 1.500 ft. I Notch Height: 1.055 ft. Orifice 1 Diameter: 5.476 in. I Element Flows To: Outlet 1 Outlet 2 I Elevation: 0 ft. Pond Hydraulic Table Stage(ft) Area(ac) Volume(ac-ft) Discharge(cfs) Infi1t(cfs) 0.0000 0.418 0.000 0.000 0.000 0.0556 0.420 0.023 0.185 0.000 0.1111 0.423 0.046 0.262 0.000 0.1667 0.425 0.070 0.321 0.000 0.2222 0.427 0.094 0.371 0.000 0.2778 0.429 0.117 0.415 0.000 0.3333 0.431 0.141 0.454 0.000 0.3889 0.434 0.165 0.491 0.000 0.4444 0.436 0.190 0.525 0.000 0.5000 0.438 0.214 0.556 0.000 0.5556 0.440 0.238 0.587 0.000 0.6111 0.442 0.263 0.615. 0.000 0.6667 0.445 0.287 0.643 0.000 0.7222 0.447 0.312 0.669 0.000 0.7778 0.449 0.337 0.694 0.000 0.8333 0.451 0.362 0.718 0.000 0.8889 0.454 0.387 0.742 0.000 0.9444 0.456 0.413 0.765 0.000 1.0000 0.458 0.438 0.787 0.000 1.0556 0.460 0.464 0.809 0.000 1.1111 0.462 0.489 0.830 0.000 1.1667 0.465 0.515 0.850 0.000 1.2222 0.467 0.541 0.870 0.000 1.2778 0.469 0.567 0.890 0.000 1.3333 0.471 0.593 0.909 0.000 1.3889 0.474 0.619 0.928 0.000 1.4444 0.476 0.646 0.946 0.000 I I U Li I r- L I 1 I I I I I 1.5000 0.478 0.672 0.964 0.000 1.5556 0.480 0.699 0.982 0.000 1.6111 0.483 0.726 0.999 0.000 1.6667 0.485 0.753 1.016 0.000 1.7222 0.487 0.780 1.033 0.000 1.7778 0.489 0.807 1.050 0.000 1.8333 0.492 0.834 1.066 0.000 1.8889 0.494 0.861 1.082 0.000 1.9444 0.496 0.889 1.098 0.000 2.0000 0.498 0.917 1.113 0.000 2.0556 0.501 0.944 1.129 0.000 2.1111 0.503 0.972 1.144 0.000 2.1667 0.505 1.000 1.159 0.000 2.2222 0.507 1.028 1.174 0.000 2.2778 0.510 1.057 1.188 0.000 2.3333 0.512 1.085 1.203 0.000 2.3889 0.514 1.114 1.217 0.000 2.4444 0.517 1.142 1.231 0.000 2.5000 0.519 1.171 1.245 0.000 2.5556 0.521 1.200 1.259 0.000 2.6111 0.523 1.229 1.272 0.000 2.6667 0.526 1.258 1.286 0.000 2.7222 0.528 1.288 1.299 0.000 2.7778 0.530 1.317 1.312 0.000 2.8333 0.533 1.346 1.325 0.000 2.8889 0.535 1.376 1.338 0.000 2.9444 0.537 1.406 1.351 0.000 3.0000 0.539 1.436 1.428 0.000 3.0556 0.542 1.466 1.560 0.000 3.1111 0.544 1.496 1.727 0.000 3.1667 0.546 1.526 1.923 0.000 3.2222 0.549 1.557 2.143 0.000 3.2778 0.551 1.588 2.385 0.000 3.3333 0.553 1.618 2.647 0.000 3.3889 0.556 1.649 2.927 0.000 3.4444 0.558 1.680 3.225 0.000 3.5000 0.560 1.711 3.539 0.000 3.5556 0.563 1.742 3.868 0.000 3.6111 0.565 1.774 4.212 0.000 3.6667 0.567 1.805 4.570 0.000 3.7222 0.570 1.837 4.942 0.000 3.7778 0.572 1.868 5.327 0.000 3.8333 0.574 1.900 5.724 0.000 3.8889 0.577 1.932 6.134 0.000 3.9444 0.579 1.964 6.555 0.000 4.0000 0.581 1.997 6.988 0.000 4.0556 0.584 2.029 7.190 0.000 4.1111 0.586 2.062 7.551 0.000 4.1667 0.588 2.094 8.014 0.000 4.2222 0.591 2.127 8.562 0.000 4.2778 0.593 2.160 9.181 0.000 4.3333 0.595 2.193 9.864 0.000 4.3889 0.598 2.226 10.60 0.000 4.4444 0.600 2.260 11.40 0.000 4.5000 0.603 2.293 12.24 0.000 4.5556 0.605 2.327 13.14 0.000 4.6111 0.607 2.360 14.08 0.000 I I I I I I I I I I I I I I I I I I I I I I 1 1 I I I I I I 1 I I I 1 I 1 4.6667 0.610 2.394 15.06 0.000 4.7222 0.612 2.428 16.09 0.000 4.7778 0.614 2.462 17.15 0.000 4.8333 0.617 2.496 18.25 0.000 4.8889 0.619 2.531 19.39 0.000 4.9444 0.622 2.565 20.57 0.000 5.0000 0.624 2.600 21.78 0.000 5.0556 0.626 2.635 23.02 0.000 ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped. POC #1 Return Period Flow (ef s) 2 year 2.739705 5 year 5.440855 10 year 6.764303 25 year 7.945413 Flow Frequency Return Periods for Mitigated. POC #1 Return .Period Flow (cfs) 2 year 1.072237 5 year 1.22667 10 year 1.339104 25 year 1.866269 POC #1 The Facility PASSED The Facility PASSED. Flow(cfs) Predev Mit Percentage Pass/Fail 1.3699 118 15 12 Pass 1.4243 110 14 12 Pass 1.4788 105 11 10 Pass 1.5333 101 10 9 Pass 1.5878 98 10 10 Pass 1.6423 97 10 10 Pass 1.6968 94 8 8 Pass 1.7513 86 7 8 Pass 1.8058 83 6 7 Pass 1.8603 79 5 6 Pass 1.9147 76 5 6 Pass 1.9692 72 3 4 Pass 2.0237 72 3 4 Pass 2.0782 70 3 4 Pass 2.1327 66 3 4 Pass 2.1872 64 3 4 Pass 2.2417 58 3 5 Pass 2.2962 56 2 3 Pass 2.3507 54 2 3 Pass 2.4052 54 2 3 Pass I I I I 1 I I 1 I I I 1 I I I 1 1 I I 2.4596 51 2 3 Pass 2.5141 51 2 3 Pass 2.5686 47 2 4 Pass 2.6231 45 2 4 Pass 2.6776 44 2 4 Pass 2.7321 40 2 5 Pass 2.7866 37 2 5 Pass 2.8411 33 2 6 Pass 2.8956 33 2 6 Pass 2.9500 30 2 6 Pass 3.0045 30 2 6 Pass 3.0590 30 2 6 Pass 3.1135 28 2 7 Pass 3.1680 28 2 7 Pass 3.2225 25 2 8 Pass 3.2770 24 2 8 Pass 3.3315 23 2 8 Pass 3.3860 23 2 8 Pass 3.4404 23 2 8 Pass 3.4949 22 2 9 Pass 3.5494 22 2 9 Pass 3.6039 21 2 9 Pass 3.6584 21 2 9 Pass 3.7129 21 2 9 Pass 3.7674 19 2 10 Pass 3.8219 19 2 10 Pass 3.8764 18 2 11 Pass 3.9309 18 2 11 Pass 3.9853 16 2 12 Pass 4.0398 16 2 12 Pass 4.0943 16 2 12 Pass 4.1488 16 2 12 Pass 4.2033 15 2 13 Pass 4.2578 15 2 13 Pass 4.3123 15 2 13 Pass 4.3668 15 2 13 Pass 4.4213 15 2 13 Pass 4.4757 15 2 13 Pass 4.5302 15 2 13 Pass 4.5847 15 2 13 Pass 4.6392 15 2 13 Pass 4.6937 15 2 13 Pass 4.7482 15 2 13 Pass 4.8027 14 2 14 Pass 4.8572 14 2 14 Pass 4.9117 14 1 7 Pass 4.9662 14 1 7 Pass 5.0206 13 1 7 Pass 5.0751 12 0 0 Pass 5.1296 12 0 0 Pass 5.1841 11 0 0 Pass 5.2386 11 0 0 Pass 5.2931 10 0 0 Pass 5.3476 10 0 0 Pass 5.4021 9 0 0 Pass 5.4566 9 0 0 Pass 5.5110 8 0 0 Pass I I 5.5655 8 0 0 Pass 5.6200 8 0 0 Pass 5.6745 8 0 0 Pass I 5.7290 8 0 0 Pass 5.7835 7 0 0 Pass 5.8380 7 0 0 Pass 5.8925 7 0 0 Pass I 5.9470 7 0 0 Pass 6.0015 7 0 0 Pass 6.0559 7 0 0 Pass I 6.1104 6 0 0 Pass 6.1649 6 0 0 Pass 6.2194 6 0 0 Pass 6.2739 5 0 0 Pass I 6.3284 5 0 0 Pass 6.3829 5 0 0 Pass 6.4374 5 0 0 Pass 6.4919 5 0 0 Pass I 6.5463 5 0 0 Pass 6.6008 5 0 0 Pass 6.6553 5 0 0 Pass I 6.7098 5 0 0 Pass 6.7643 4 0 0 Pass I Water Quality BMP Flow and Volume for POC #1 On-line facility volume: 0 acre-feet V I On-line facility target flow: 0 cfs. Adjusted for 15 mm: 0 cfs. Off-line facility target flow: 0 cfs. I Adjusted for 15 mm: 0 cfs. Perind and Impind Changes No changes have been made. This program and accompanying documentation is provided as-is' without warranty of any kind. The entire I risk regarding the performance and results of this program is assumed by the user. Clear Creek Solutions, Inc. disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall Clear Creek Solutions, Inc. ' V be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the use of, or inability to use this program even if Clear Creek Solutions, Inc. has been advised of the possibility of such damages. I I I I I I Quarry Creek Land Use Combination Parameters - Pre-project J-16483 10-19-2011 Revised 12-20-2011 Revised 3-13-2012 POC • Land Use Slope (%) Soil Group Acres Percent Impervious Impervious Area (ac) Pëióui Area (ac)' 1 FRE 0%_5% D 0.56 0.95 0.53 0.03 1 FRE 05%-10% D 0.57 0.95 0.54 0.03 1 FRE 10% and greater D 0.06 0.95 0.06 0.00 1 HEA 0%-5% A 4.62 0.15 0.69 • 3.93 1 HEA 0%-5% D 1.32 0.15 0.20 1.12 1 HEA 05%-10% A 0.13 0.15 0.02 0.11 1 HEA 05%-10% D •. 0.65 0.15 0.10 0.55 1 HEA 10% and greater A 1.50 0.15 0.22 1.27 1 HEA 10% and greater D 1.22 0.15 0.18 1.04 1 OPE 0%-5% A 0.01 0.00 0.00 0.01 1 OPE 0%-5% D 0.05 0.00 0.00 0.05 1 OPE 05%-10% D 0.03 0.00 0.00 0.03 1 OPE 10% and greater A 0.03 0.00 0.00 0.03 1 OPE 10% and greater D 0.19 0.00 0.00 0.19 1 PAR 0%-5% A 0.00 0.95 0.00 0.00 1 PAR 0%-5% D 0.14 0.95 0.13 0.01 1 PAR 05%-10% A 0.01 0.95 0.01 0.00 1 PAR 05%-10% D . 0.02 0.95 0.02 0.00 1 PAR 10% and greater A 0.01 0.95 0.01 0.00 1 PAR 10% and greater D 0.00 0.95 0.00 0.00 1 HEA 0%-5% D 0.00 0.15 0.00 0.00 1 HEA 10% and greater D 0.19 0.15 0.03 0.16 1 OPE 0%-5% A 1.04 0.00 0.00 1.04 1 OPE 0% - 59/16 D 0.01 0.00 0.00 0.01 1 OPE 05%-10% A 0.12 0.00 0.00 0.12 1 OPE 05%-10% D 0.01 0.00 0.00 0.01 1 OPE 10% and greater A 1.27 0.00 0.00 1.27 1 OPE 10% and greater D 0.51 0.00 0.00 0.51 1 PAR 0%-5% A 0.04 0.95 0.04 1 0.00 1 PAR 05%-10% A 0.01 0.95 0.01 0.00 _1 PAR 10% and greater A 0.02 0.95 0.02 0.00 I 14.33 2.SI 12.51 1 I 71 I I I 1 I I I I I I I LI 1 I I I I I I I I I I I I I I I I I I I Quarry Creek Land Use Combination Parameters - Pre-project Revised 12-20-2011 10-19-2011 J-16483 Revised 3-13-2012 POC Land Use Slope (%) ; Soil Group. Acres Percent Impervious ImpeiousArea ac Pervious Area(ac). 3-2 FRE 0%-5% D 0.00 0.95 0.00 0.00 3-2 FRE 05%-10% D 0.03 0.95 0.03 0.00 3-2 FRE 10% and greater D 0.10 0.95 0.09 0.00 3-2 HEA 0%-5% A 3.66 0.15 0.55 3.11 3-2 HEA 0%-5% B 0.23 0.15 0.04 0.20 3-2 HEA 0%-5% D 3.90 0.15 0.58 3.31 3-2 HEA 05%-10% A 0.02 0.15 0.00 0.01 3-2 HEA 05%-10% B 0.08 0.15 0.01 0.07 3-2 HEA 05%-10% D 0.56 0.15 0.08 0.48 3-2 HEA 10% and greater A 0.01 0.15 0.00 0.01 3-2 HEA 10% and greater D 2.13 0.15 0.32 1.81 3-2 OPE 0%-5% A 0.02 0.00 0.00 0.02 3-2 OPE 0%-5% B 0.02 0.00 0.00 0.02 3-2 OPE 0%-5% D 0.13 0.00 0.00 0.13 3-2 OPE 05%-10% A 0.07 0.00 0.00 0.07 3-2 OPE 05%-10% B 0.08 0.00 0.00 0.08 3-2 OPE 05%-10% D 0.35 0.00 0.00 0.35 3-2 JOPE 10% and greater B 0.03 0.00 0.00 0.03 3-2 JOPE 10% and greater D 1.75 0.00 0.00 1.75 13.16 1.71 11.45 POC Land Use - Slope (%) SOil Group Acres Pecent Impervious ArnperviousArea (ac) PeMôus' Area(ac) 3-3 HEA 0%-5% A 3.72 0.15 0.56 3.17 3-3 HEA 0%-5% D 2.64 0.15 0.40 2.24 3-3 HEA 05%-10% A 0.01 0.15 0.00 0.01 3-3 HEA 10% and greater A 0.05 0.15 0.01 0.04 3-3 PAR 0%-5% A 0.05 0.95 0.05 0.00 3-3 PAR 05%-10% A 0.01 0.95 0.01 0.00 3-3 PAR 10% and greater A 0.09 0.95 0.08 0.00 6.57 Quarry Creek J-16483 Land Use Combination Parameters - Pre-project Revised 12-20-2011 10-19-2011 Revised 3-13-2012 POC Land Use Slope (%) soil Group Acres Percent Impervious Impervious. Area (ac) Peidus Area (ac) 3-7 HEA 0%_5% A 1.33 0.15 0.20 1.13 3-7 HEA 0%-5% D 0.00 0.15 0.00 0.00 3-7 HEA 05%-10% A 0.01 0.15 0.00 0.01 3-7 HEA 10% and greater A 0.41 0.15 0.06 0.35 3-7 HEA 10% and greater D 0.02 0.15 0.00 0.02 3-7 OPE 0%-5% A 0.01 0.00 0.00 0.01 3-7 OPE 10% and greater A 0.06 0.00 0.00 0.06 3-7 PAR 0%-5% A 0.07 0.95 0.06 0.00 3-7 PAR 05%-10% A 0.03 0.95 0.03 0.00 3-7 PAR 10% and greater A 0.07 0.95 0.06 0.00 2.01 0.42 1.58 POC Land-Use Slope (%) Soil Group Acres Percent Impervious Impervious Area (ac) Pervious Area(ac) 4 HEA 0%-5% A 0.57 0.15 0.09 0.49 4 HEA 0%_5% B 2.48 0.15 0.37 2.11 4 HEA 0%-5% D 3.90 0.15 0.58 3.31 4 HEA 05%-10% B 0.45 0.15 0.07 0.38 4 HEA 05%-10% D 0.03 0.15 0.00 0.03 4 HEA 10% and greater A 0.00 0.15 0.00 0.00 4 HEA 10% and greater B 0.43 0.15 0.06 0.37 4 HEA 10% and greater D 0.73 0.15 0.11 0.62 4 OPE 0%-5% B 0.57 0.00 0.00 0.57 4 OPE 0%-5% D 0.68 0.00 0.00 0.68 4 OPE 05%-10% B 0.22 0.00 0.00 0.22 4 OPE 05%-10% D 0.32 0.00 0.00 0.32 4 OPE 10% and greater B 0.17 0.00 0.00 0.17 4 OPE 10% and greater D 3.93 0.00 0.00 3.93 4 PAR 0%_5% A 0.59 0.95 0.56 0.03 4 PAR 0%_5% C 0.02 0.95 0.01 0.00 4 PAR 05%-10% A 0.22 0.95 0.21 0.01 4 PAR 05%-10% C 0.00 0.95 0.00 0.00 4 PAR 10% and greater A 0.03 0.95 0.03 0.00 4 VAC 0%_5% B 0.34 0.00 0.00 0.34 4 VAC 0%_5% D 0.63 0.00 0.00 0.63 4 VAC 05%-10% B 0.33 0.00 0.00 0.33 4 VAC 05%-10% 0 1.04 0.00 0.00 1 1.04 4 VAC 10% and greater B 0.52 0.00 0.00 0.52 4 VAC 10% and greater I D 8.17 0.00 0.00 8.17 26.38 L1U I I I I 1 I 1 I I I I I I I I I I I I Quarry Creek Land Use Combination Parameters - Pre-project J-16483 10-19-2011 Revised 12-20-2011 Revised 3-13-2012 POC Land Use wl:- Slope (%) Soil Group Acres Péret Impervious lmpeMous Area (ac).,. Pejós Area.(ac) 5 OPE 0%-5% 0 0.01 0.00 0.00 0.01 5 OPE 05%-10% D 0.10. 0.00 0.00 0.10 5 OPE 10% and greater D 0.19 0.00 0.00 0.19 5 VAC 0%-5% D 0.62 0.00 0.00 0.62 5 VAC 05%-10% D 0.99 0.00 0.00 0.99 5 VAC 10% and greater B 0.00 0.00 0.00 0.00 5 VAC .10% and greater D 10.85 0.00 0.00 10.85 12.75 0.00 1z.1s I I I I I I 1 I I I I I I I I I I I I Quarry Creek J-16483 Land Use Combination Parameters - Post-project Revised 12-20-2011 10-19-2011 Revised 3-13-2012 POC Land Use Slope (%) Soil Group Acres Percent Impervious Impervious Area (ac) Pervioui Area (ac) I street 0%-5% D 1.78 0.95 1.69 0.09 1 lot 0%-5% A 5.23 0.85 4.44 0.78 1 lot 0%-5% D 1.24 0.85 1.05 0.19 1 slope 10% and greater A 0.60 0.00 0.00 0.60 I slope 10% and greater D 0.88 0.00 0.00 0.88 1 lot 0%-5% A 1.09 0.10 0.11 0.98 1 lot 0%-5% D 0.00 0.10 0.00 0.00 I slope 10% and greater A 1.41 0.00 0.00 1.41 I slope 10% and greater D 0.72 0.00 0.00 0.72 1 park and ride 0%-5% D 0.69 0.95 0.66 0.03 I street 10% and greater A 0.48 0.95 0.46 0.02 1 street 10% and greater D 0.22 0.95 0.21 0.01 14.33 8.62 5.71 POC Land-Use Slope (%) Soil Group Acres Percent Impervious Impervious Area (ac) Pervious Area.(ac) 3-2 street 0%_5% D 0.25 0.95 0.24 0.01 3-2 lot 0%-5% B 0.04 0.10 0.00 0.04 3-2 lot 0%-5% D 0.92 0.10 0.09 0.83 3-2 lot 0%-5% A 3.57 0.85 3.04 0.54 3-2 lot 0%-5% B 0.10 0.85 0.08 0.01 3-2 lot 0%-5% D 4.82 0.85 4.10 0.72 3-2 slope 10% and greater A 0.10 0.00 0.00 0.10 3-2 Islope 10% and greater D 1.19 0.00 0.00 1.19 3-2 park and ride 0%-5% D 0.61 0.95 0.58 0.03 3-2 street 0%_5% A 0.10 0.95 0.10 0.01 3-2 street 0%-5% B 0.30 0.95 0.28 0.01 3-2 street 0%-5% D 1.15 0.95 1.09 1 0.06 13.lb 9.bl 3.55 • POC Land-Use Slope (%) Soil Group Acres Percent Impervious Impervious Area (ac) Pen,ióus Area (ac) 3-3 EDB 2-3-3 0%-5% B 0.38 0.00 0.00 0.38 3-3 EDB 2-3-3 0% - 5% D 0.10 0.00 0.00 0.10 3-3 lot 0%-5% A 3.31 0.80 2.65 0.66 3-3 lot 0%-5% D 2.56 0.80 2.05 0.51 3-3 slope 10% and greater A 0.62 0.00 0.00 0.62 3-3 slope 10% and greater D 0.08 0.00 0.00 0.08 7.04 4.70 2.35 I I I I I I I I I I I I I I I I I I I Quarry Creek J-16483 Land Use Combination Parameters - Post-project Revised 12-20-2011 10-19-2011 Revised 3-13-2012 POC Land Use - Slope (%) Soil Group Acres erc Pent -Impervious Impervious A !ea(ac) Peivious Area (ac) 3-7 community facility 0%-5% A 1.46 0.50 0.73 0.73 3-7 community facility 0%-5% D 0.00 0.50 0.00 0.00 3-7 Islope I 10% and greater A 0.52 0.00 0.00 0.52 3-7 Islope 10% and greater D 0.03 0.00 0.00 0.03 2.01 0.73 1.28 POC Land Use - Slope (%) Soil Group Acres V Percent Impervious Impervious Area sac, Pervious Area (ac) 4 lot 0%-5% B 3.99 0.80 3.19 0.80 4 lot 0%-5% D 8.01 0.80 6.41 1.60 4 lot 0%-5% B 0.10 0.50 0.05 0.05 4 lot 0%-5% D 1.04 0.50 0.52 0.52 4 EDB 2-4 0%-5% D 1.74 0.10 0.17 1.56 4 slope 10% and greater D 1.42 0.00 0.00 1.42 4 Islope 10% and greater D 0.10 0.00 0.00 0.10 4 slope 10% and greater A 0.00 0.00 0.00 0.00 4 slope 10% and greater D 0.54 0.00 0.00 0.54 4 street 0%-5% A 1.42 0.95 1.35 0.07 4 street 0%-5% B 1.04 0.95 0.99 0.05 4 street 0%-5% C 0.02 0.95 0.02 0.00 4 street 0%-5% D 7.17 0.95 6.81 0.36 26.57 19.51 1.06 POC V Land Use - Slope (%) Soil Group Acres Percent Impervious Impervious A rea ac, Péiious Area (ac) 5 lot 0%-5% D 0.57 0.10 0.06 0.51 5 lot 0%-5% D 5.92 0.80 4.73 1.18 5 lot 0%-5% V B 0.00 0.80 0.00 0.00 5 lot 0% - 5% D V 5.61 0.80 4.49 1.12 12.09 9.28 2.82 0 aov - S - - - -- - -5. I S-_ SSSSS_SS •. - - i' - . -- . '•S 'a S - 5 S _ 0 H S. MT * - 3-13 2 - S [ Scale in Feet 0 Dote of Exhibit: October irt 2W I Quarry Creek Revised: March 12, 2012 LN(,W1tRW ('1i,\i' 0 300 600 North Eagle Aerial Image: March, 2009 Pie-Project Hydrologic Soils Group Information I I )ject Drainage Basins I )f Compliance - - All 501 -)d greater ii [ Scale in Feet 0 Date of Exhibit: October 18 2011 Revised: March 12 2012 LNi'a LRlN; rsii 0 300 600 North Eagle Aerial image: March, 2009 Quarry Creek Pre-Project Slope Information I - I h 1 -)t of Compliance I ,\ Project Drainage Basins / -- - .- idway striaI I Mining - -. - - enSpace 7.4 - ed - - - ftiçp Le1i:n i :ant AOL Li 7 )7 EEIiILcJ DE1Ii - - — — I'III tthJ1i 0 - R \ r - L - Scale in Feet 0 Date of Exhibit: October 18 2011 Revised. Maid-i 12, 2012 L\i} p77; 0 300 600 Nohh Eaqie Aerial Imaqe: March, 2009 Quarry Creek Pie-Project Land Use Information Basins -ipliance-1 I I I ! roup 47 - _-\\ (( - I. • .- , y , L ( -------- \\ \\ - - - - Ei - -. - - I POC J* 7. S- /// •- - •- - : - - - ------- --.-- .-, ___ \• - --U- - - , / •: - / - Scale in Feet I I Date of Exhibit: October 18, 2011 [ 300 600 North Revised: March 12, 2012 Eagle Aerial Image: March 2009 (\1I \ Quarry Creek Post-Project Hydrologic Soils Group Information Legend ,- Post Project Basins Point of Complianc Slopes 0%_5% 1011 and greater Ali I - - - -- --i rt:ac1I;EL / - - iii ---- -r M.q -a- W_ - - - - -- -- - - . vr- 3-2 - ------------- 7,,00~ -. - - n1 hi' / / 1 / n-'t // •-- - . - Scale in Feet Date of Exhibit: October 18 2011 [_0 300 600 North J Rvistd. MuILI i 12, 2012 Eagle Aerial Image: March, 2009 Quarry Creek Post-Project Slope Information u1Jj_n_. - LI - — - -. -- I - \ - - —J; — =r) * #L p I vt - I -,---- - I - / 1 -\:- : \------ OW kip Legend Post Project Basins * Point of Compliance Landuse community facility lot park / open space park and ride slope street - ctzo - •44 / - - -- - :- :---- - - - - •. - / -_- - [ Scale in Feet 0 DuM oF Eojiibil. 0olobi 18. 2011 Quarry Creek Revised: March 12, 2012 ENuiNit RI\L ('l\N 0 300 600 North Eagle Aerial Image: March, 2009 Post-Project I and Use Information Appendix E DMAIIMPIBMP Exhibit for Quarry Creek Prepared By: DCB:SL:vs/Reporti16483.003 Rick Engineering Company - Water Resources Division 10-19-11 Revised: 12-20-11 Revised: 3-12-12 Legend Extended Detention Basin Proposed Grading Drainage Basin 1 - 14.3 ac. Drainage Basin 3-2 - 13.2 ac. Drainage Basin 3-3 - 7.0 ac. Drainage Basin 4 - 26.6 ac. Drainage Basin 3-7 - 2.0 ac. Drainage Basin 5- 12.1 ac. — - Treatment I -- F Filter IT \ - - - - - I - 0 - -- - / - - - - - L - - - - - - MIN - - - - - \ / - - _-, \ \\ - - .- \V' -i tILJ - -- : - - - - H-. - 2 . -., i\lh 39 - - * Puc_ .-- --- 1— // DA i(/// 7: ik / - 4PSTINGSUK - - - M 0 It - . - - - - -.- - -SEABUR.Y.ST Offs ite -Treatment / Filter 10 _MARR RO— Lot % Impervious 1 85 2 85 3 80 4 80 5 80 6 95 7 50 8 50 9 10 10 10 11 10 k c r ii I1s.tciidcd Q 1()-Yr 131 13\\ ' It P ( )C E)ctcntion I hreshold Volunie ()iilicc (It) (It) . I)iam ft 1)iam (Hi) Basin( Os) (ac-It) x_It) P( )C' I I' 1)13 I 0.5Q: 385 35 1.06 3 x IS 6 1100 3-2 1013 3-2 0.502 1 488 25 1.2 3' I '00 3-3 11)133-3 0.5Q: 232 13 0.6 5 \ 1. 31 P()C 3-7 11)13 3-7 0.5Q2 28 28 0.1 3 x I 2 P004 I 1)13 4 0.5Q2 540 40 24 4 x I 75 1)00 5 H)13 5 (1 5Q2 38(1 48 1,4 4 I Scale in Feet 0 Date of Exhibit: October 18, 2011 Revised. Murc) 12 2012 0 300 600 North Eagle Aerial Image: March, 2009 Quarry Creek Storm Water Management Plan Exhibit