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Home My WebLink AboutRP 01-08; Laguna Point; Redevelopment Permits (RP) (2)PRELIMINARY HYDROLOGY REPORT FOR RUDY ZAVALANI 4516 Salisbury Drive Carlsbad, CA 92008 PROJECT LAGUNA CONDOMINIUMS 735 Laguna Drive CARLSBAD PREPARED BY: Aquaterra Engineering Inc. 1843 Campesino Place Oceanside, CA 92054 tele: 760-439-2802 fax: 760-439-2866 January 9, 2006 under th^..sypervision of: Gary/ipska, RCE 23080 Exp. 12/31/07 SUMMARY TABLE OF HYDROLOGY CALCULATIONS LAGUNA CONDOMINIUMS, CARLSBAD DATE: 1-09-06 PRE POST C -CONSTRUCTION -CONSTRUCTION Tc (min.) 1 C'/hr) A (acres) Q (cfs) V (m AQ (cfs) BASIN X BASIN A 0.52 0.66 8.3 6.5 4,75 5.56 0.24 0.24 0.59 0.88 0.29 Hydrology & Hydraulics Report City of Carlsbad This Hydraulics and Hydrology Report was prepared using the following Manuals: Hydrology Manual. June 2003 edition, County of San Diego Drainage of Highway Pavements. U.S. Dept. of Transportation The Rational Method was used to determine the 100 yr. storm Q values. The Rational Method uses the following formula to establish the flow: Q = CIA where, Q = the peak runoff in cubic feet per second C = Runoff coefficient representing the ratio of runoff to rainfall I = time average intensity in inches per hour A = Area of the subbasin in acres HYDROLOGY REPORT Aquaterra Engineering Inc. [PROJECT r T'""' [ i 1 ! f ; i 1 ; ) ; ; i 1 \ \ \ \ \ \ i i ! i 1 ( i ( 1 i i i 1 j 1 ) ! \ 1 i ( , 1 \ i 1 !A 1 i N »> , T ..i./. k ./ i f ^ 1 ! r IMi i j i ! 1 i r j A I 1 1 ! i 1 1 Ml . i 1 i 1 1 1 1 i 1 . j i /} it P. 2 1 tfti h I 1 j I i I 1 1 i H j— i 1 j I i / y e 1/ I ] ! i 1 j \ \ / 1 j T \ 1 1-L 1 L 4 ) I J ma* m 'A %• 1 ' 1 1 i t ( 1 1 ! 1 1 K ill) i 1 i i-1 /< f i M -> 1 • ; 1 1 I——! ilil: ! 1 \ .a* h I? j 0 i ; i i 1 i ' ! J i I ! I 1 i 1 I ( 1 ) TV it 1 1 ) I 1,,/ r 5-i p. I fc ./* i 1 ! f ^ • ! I ! 1 j ! i Tc < ( w \ 1 j M 1 i 1 1 V ( 7 i dl II. )- i ... • 4, P 4 > 7 r I'l 1 1 i 1 / I lil A ik4 \ ' 1 ! j 1 \ 1 // •n {I./ p ij j j i I mm ¥ _ 1 J_ 1 / M M / 1 1 i i i i j 1 1 1 i 1 j ! 1 i 1 i 1 1 ! j 1 /i A 1 -Ml • i . i ! j j h ( ) F t'" \ i i 1 ' !A 1 a 1 1 /r >..^ 4 ( 7 ; ll }; \ IL 1 ' 1 ! i i i i M 1 i 1 1 M M j M i 1 A / L 1 J c 1 ( lc M 5 z c 5n '» • i 1 1 M 'i ! 1 i 1 1 f I • 1 j i -+• ! J i 1 I i i i i -+• ! J i 1 • 1 IL 1 i 1 i i i 1 i i i 1 h I ; ! j i i 1 ! S 1 i 1 ! i Aquaterra Engineering Inc. PROJECT DATE; j. ^/1 n 1 1 1 1 // f ^ ill W J 1 ! M t r ! ! I 1 1 ] 5 U 1 1 1! i i S ' 1 i ! • i . 1 1 '• 1 i i i ' ! ll 1 1 ! / 0 Z ... 1 1 1 / i 1 1 c > L,. (: rl i/fT 1 i • j j i i ! j 1 7/ \ i " \ i i i j i 1 ( L J r •> 1 j i \ r r L J i 1 / V i 1 ! i ! i.. 1 t 1 A A ( h fl 14 'I * ! 1 1 M M 1 L A. j , 1 1 z fo h IA lh 1 f y 1 1 ' i 1 ( \} • 1 ] i i 1 l.ii i 1 1 1 l\ ,0 Uv ) i 1 M i i M i i i 1 1 \ \ 1 : ! i . 1 i 1 \ 1 i ) ____ i^-XJAl-^b^j c 1 1 i /i , ia „ i >S 1 ! f ! 1 1 i 7 i i H ) /] i 5 i j i . i_ _ 1 H 1 j 1 1 , ^ i r 1 1 \ 1 ; i j : i 1 4 i i 1 i i ! 1 i e - 1 0] r/) 1 ) ... L i _. J 1 1 ! i i -T— 7 :^ > 1 i I 1 1 f M ! ! 1 1 : i i 1 ! I i M M 1 ! 1 Li i i 1 ! / i AA \ ^ J L Cr; 0 Vi ! 1/ i i ! i ! i 1 \ I' "\ ) i j ! •'"'"j • ; 1 1 , I I \ ! ! ill 1 1 ^ M ! M i 1 i LJ MM! • } j i ! ! i i i 1 i 1 1 1 i i f •• \ • } j i ! ! i i i i __L i MMM \ \ i MM i ! S 6 7 8 9 10 3 4 Hours Directions for Application: (1} From predpitation maps detemiine 6 hr and 24 hr amounts for the selected frequency. These maps are included in the County Hydrology Manual (10,50, and 100 yr maps included in the Design and F>rocedure Manual). (2) Adjust 6 hr precipitation (if necessary) so that it is within the range of 45% to 65% of the 24 hr precipitation (not ai^iicapie to Desert). (3) Rot 6 hr precipitation on the right side of the chart. (4) Draw a line through ihe point parallel to the plotted iines. (5) This line is the Intensity-duration curve for the location traing analyzed. 'P 24 SC %g) Application Form: 5 (a) Selected frequency year {b)P6« tli^in..P24=S--^ (c) Adjusted Pe^> = Z5 in. (d) tj^ = min. (e) I a in./hr. Note: This chart replaces the Intensity-Duration-Frequency curves used since 1965. ! 1~. " 4 ~"l • 1 8" P6 1 1.5 "1 2 t 2.5 1 ..JrL«L i \ 1 " 4 ~"l •4.8 1 S "Tl"' 1 r?.5 8" Ountion 1 1.5 "1 ) i 2.5 1 ..JrL«L i \ 1 " 4 ~"l •4.8 1 S "Tl"' 1 1 1 s 7 2.63 "O2" 3.9S TO 8.27 j 6.S9 4.24)8.30 7.90, 036 9.22 7:42 ,1064 8.48 1IIJ6) 9.54 13.17 1060 8.42 14.49 11.68 9.27 15.6^ 12.72 10.1l 10 1.68 2.63 3.37 4.21 8.05 5.90 6.74 7.58 13.17 1060 8.42 14.49 11.68 9.27 15.6^ 12.72 10.1l is 1.30 1.95 2.S9 3.24 089 4.64 5.19 5.84 8.49 7.13 7,78 20 2S t.b8 1.62 2.15 2.69 3.23 3.77 4.31 4.85 5.39 5.93 6.46 20 2S 0.93 i40 1.87 2.33 2.60 3.27 3.73 4.20 m 010 2*9 4.67 4.16 3.45 "2.'W 5.13 4.56 3.79 328 5.60 "4.98 "4.13 058 30 io 083 f.24 1.03 \J» '1.38 2.07, J.49 2.07 179 2.90 2.41 2.09 "1.8S 1:43 l32 1 2.76 2.39" 4.20 m 010 2*9 4.67 4.16 3.45 "2.'W 5.13 4.56 3.79 328 5.60 "4.98 "4.13 058 SO 0.80 a9o 1.19 1.49 J.49 2.07 179 2.90 2.41 2.09 "1.8S 1:43 l32 1 2.76 2.39" 4.20 m 010 2*9 4.67 4.16 3.45 "2.'W 5.13 4.56 3.79 328 5.60 "4.98 "4.13 058 60 0.63 0.80 1.06 1.33 1.S9 2.90 2.41 2.09 "1.8S 1:43 2.12 J^39 2.82 3.18 90 a4i <).61 082 iJOi 1.23 2.90 2.41 2.09 "1.8S 1:43 1.63 li4 i.o4 225 2.45 120 "'160 0J1 068 085 M& 088 1.19 1.36 1.53 1.70 1.87 2.04 120 "'160 0.44 Oi» 073 M& 088 1.19 1.18 1.32 \Ja 1.62 1.>B 180 026 0.39 0.62 ods 078 0.9^ 1.04 1.18 Ul 1.44 1.^ 240 OJ22 0.33 0.43 0.54 065 0.76 087 098 1.06 1.18 1.30 300 o.id 028 6.36 0.47 j0J6 06d ots o.d4 1.03 1.13 380 0.17 025 0.33 1042)050 0.S8 0.67 0.75 0.64 6.92 1.00 F I 6 P R Intensity-Duration Design Chart - Templafa nr.i ijjnnw —tMKMt»mlmi atatA 3 0 3 Mlieft m:±::t AE Feet .5000 .4000 .3000 .2000 .1000 1-900 800 TOO -60^\ .500"^ Tc B^UATION '^11.9L*V-385 N .400 \ .300 •200 Tc » Time of concfflitration (Iiours) L - Watercourse Oislance (miles) AE « Change in elevation alon0 effective siope iine (See Rgure 3-5)(feeD Tc HoursI Minutes 240 180 120 i—100 90 1—80 70 \ IIHiM Foet s. 100 N— - N 50 40 '30 — 20 10 0.5 4000 3000 .2000 1800 — 1600 — 1400 -.1200 .1000 1—900 800 H-700 600 -500 .400 t—300 AE SOURCE: Califbmia Division of Highways (1941) and Kirpich (1940) 200 60 50 — 40 — 30 20 — 18 — 16 14 1—12 -10 9 —8 —7 —6 -5 —4 —3 Tc Nomograph for Defemiinaflon of Time of Concentration (Tc) or Travel Time (Tt) fbr Natural Wortersheds FIGURE San Disgo County Hydrology Manual Date: June 2003 Section: Page: 3 6 of 26 Table 3-1 RUNOFF COEFFICIENTS FOR URBAN AREAS Land Use Runoff Coefficient "C" Soil Type NRCS Elements County Elements %IMPBR. A B C D 0* 0^0 0.25 . 0.30 0.35 10 0:i7 0.32 036 0.41 20 0.34 0.38 0.42 0.46 25 0J8 0.41 0.45 0.49 30 0.41 0.45 0.48 0.52 40 0.48 0.51 0.54 0.57 45 0.54 0.57 0.60 50 0.55 0.58 0.60 0.63 65 m 0.67 0.69 0.71 80 0,76 0.77 0.78 0.79 80 • 0.76 0.77 0.78 0.79 85 0.80 0.80 0.81 0.82 90 0.83 0.84 0.84 0.85 90 0.83 * 0.84 0.84 0.85 95 0.87 0.87 0.87 0.87 Undistuibed Natural Terrain (Natural) Low Density Residentfal (LDR) Low Density Residential (LDR) Low Density Residential (LDR) Medium Denstty Residential (MDR) Medium Denstty Residential (MDR) •Medium Densitv Residential fMDR> . Pennanent Open Space Residential, 1.0 DU/A or less Residential, 2.0 DU/A or less Residential, 2.9 DU/A or less Residential, 4.3 DU/A or less Residential, 7.3 DU/A or less Residential. 10^9 DU/A or less Medium Density Residential (MDR) Hitth Density Rflsidentittl fHDRt Residential, 14.5 DU/A or less Residential. 24.0 DU/A or less High Densiiy Residential (HDR) Ck>imnerci8l/lQdu8trial (N. Com) Commercial/Industrial (0. Com) Commercial/Industrial (O.P. Com) Conuneroial/Industrial (Limited L) Commeroial/lndnstrial (General L) Residential, 43.0 DU/A or less Neigltbodiood Coimnercial General Commercial Office Professional/Commercial Umited Industrial General Industrial *The vahies associated witb 0% impervious may be used for direct calculatio& ofthe coe£Boient, Cp, for the soil typeX or for areas that will remain undisturbed in peipetuity, is located in Clevetand National Fdiest). DU/A » dwelling units per acre NRCS " Nationa] Resouroes Conservation Service runoff coefficient as described in Section 3.1.2 (r^resentiog the pervious nmoff Justification must be given that the area will remain natural forever (e.g., the area 3-6 San Diego County Hydrology Manual Date: Jane 2003 Section: 3 12 of 26 Note tbat the Initial Time of Concentratioii siiould be reflective of tbe general land-use at tbe upstream end of a drainage basin. A single lot witb an area of two or less acres does not have a significant effect where tbe drainage basin area is 20 to 600 acres. Table 3-2 provides limits of tihe length (Maximum Length (LM)) of sheet flow to be used in hydrology studies. Initial Tf values based on average C values for the Land Use Element are also included. These values can be used in planning and design applications as descnbed below. Exceptions may be approved by the **Regulating Agency" when submitted wifli a detailed study. Table 3-2 MAXIMUM OVERLAND FLOW LENGTH (LM) Element* DU/ Acre .5% 1% 2% 3% 5% 10% Element* DU/ Acre LM Ti LM Ti !M Tl LM Ti LM Ti LM Ti Natural 50 13.2 70 12.5 85 10.9 100 103 100 8.7 100 6.9 LDR 1 50 12^ 70 11.5 85 10.0 100 9.5 100 8.0 100 6.4 LDR 2 50 11.3 70 10.5 85 9.2 100 8.8 100 7.4 100 5.8 LDR 2.9 50 10.7 70 10.0 85 8.8 95 8.1 100 7.0 100 5.6 MDR 4.3 50 10.2 70 9.6 80 8.1 95 7.8 100 6.7 100 53 MDR 73 50 9.2 65 8.4 80 7.4 95 7.0 100 6.0 100 4.8 MDR 10.9 50 8.7 65 7.9 80 6.9 90 6.4 100 5.7 100 4.5 MDR 14.5 50 8.2 65 7.4 80 6.5 90 6.0 100 5.4 100 43 HDR 24 50 6.7 65 6.1 75 5.1 90 4.9 95 43 100 3.5 HDR 43 50 5.3 65 4.7 75 4.0 85 3.8 95 3.4 100 2.7 N.Com 50 5.3 60 4.5 75 4.0 85 3.8 95 3.4 100 2.7 G.Com , 50 4.7 60 4.1 75 3.6 85 3.4 90 2.9 100 2.4 ojpycom 50 4.2 60 3.7 70 3.1 80 2.9 90 2.6 100 2.2 Limited! 50 4.2 60 3.7 70 3,1 80 2.9 90 2.6 100 2.2 General! 50 3.7 60 3.2 70 2.7 80 2.6 90 23 100 1.9 ' *SeeT^le 3-1 for more detailed description 3-12 ^•U L . .^-^^-^rcriLx D.. ,L-.. ^.>L^ / Vs 'A "° .Mv* / ^ M ^ % ' / f / ChC \ •\ \ \ v^M, / ' % . ^ ^'L)CL. \, :-<^.^M. AL \\ \ L<.C\M, \ Vat \ V \ < ) ^ .A I v . SOIL SURVEY tSlAP {U.S.D.Ao) SHEET 22 SCALE 1"-: TA.BLE 11.—INTERPRETATKWS FOR LAND MANAGEMENT—Continued Map syni>ol T Soil Hydro logic group 1 Erodibility Limit2.ti-rj= cor.'v'er?:' fros br":?' grs= = LfE LpB LpC LpC2 LpD2 LpE2 LrE LrE2 LrG LsE LsF Lu LvF3 Md MIC MIE MnA MnB MoA )^A2 MrG MvA MvC MvD MxA OhC GhE OhF OkC OkE PeA PeC PeC2 PeD2 PfA PfC Py Las Floxes-Uiban land coiaplex, 9 to 30 percent slopes: Las Flores Urban land Las Posas fine sandy loam, 2 to 5 percent slopes 5 5 to 9 percent slopes- to 9 percent slopes. 9 to IS percent slopes, 15 to 30 percent slopes, to 30 percent to 30 percent Las Posas fine sandy loan. Las Posas fine sandy loan, eroded. Las Posas fine sandy- loan, eroded. Las Posas fine sandy loam, eroded. Las Posas stony fine sandy loam, slopes. Las Posas stony fine sandy loam, slopes, eroded. Las Posas stony fine san<fy- loam, 30 to 65 percent slopes. Linne clay loam, 9 to 30 percent slopes Linne clay loam, 30 to 50 percent slopes Loamy alluvial land Loamy alluvial land-Huerhuero complex, 9 to 50 percent slopes, severely eroded: Loamy alluvial land Huerhuero Made land Marina loan^ coarse sand, 2 to 9 percent slopes——— Marina loamy coarse sand, 9 to 30 percent slopes — Mecca coarse sandy loam, 0 to 2 percent slqpes Mecca coarse sandy loam, 2 to 5 percent slopes- Mecca sandy loam, saline, 0 to 2 percent slopes Mecca fine sandy loam, 0 to 2 percent slopes, eroded— Metamorphic rock land Mottsville loamy coarse sand, 0 to 2 percent slopes Mottsville loamy coarse sand, 2 to 9 percent slopes Mottsville loamy coarse sand, 9 to 15 percent slopes— Mottsville loamy coarse sand, wet, 0 to 2 percent slopes. Olivenhain cobbly loam, 2 to 9 percent slopes— Olivenhain cobbly loam, 9 to 30 percent slopes Olivenhain cobbly loam, 30 to 50 percent slopes Olivenhain-Urban land ccmqplex, 2 to 9 percent slopes: Olivenhain Urban land Olivenhain-Urban land complex, 9 to 30 percent slopes: Olivenhain Urban land Placentia sandy loam, 0 to 2 percent slopes • Placentia sandy loan, 2 to 9 percent slopes Placentia sandy loam, 5 to 9 percent slopes, eroded— Placentia sandy loam, 9 to 15 percent slopes, eroded— Placentia sandy loam, thick surface, 0 to 2 percent slopes. Placentia sandy loam, thick surface, 2 to 9 percent slopes. Playas See footnotes at end of table. 36 D D D A A B B B B D A A A D D D D D D D D D D D D D Moderate 2- Moderate 2- Moderate 2- Moderate 2- Moderate 1- Ntoderate 1- Moderate 1- Severe 1— Moderate 2- Severe 1— Severe 16— Severe 1- Severe 1- Severe 2— Severe 2-- Severe 16 Severe 16 Severe 16 Severe 16 Severe Severe Severe Severe Severe Severe 16- Severe 16- Severe 1— Severe 9— Severe 9— Severe 9— Severe 9—- Severe 16-- Severe 16— Moderate 2 Slight. Slight. Moderate. Moderate. Moderate. Moderate. Moderate. Slight. Severe. Severe. Slight. Slight. Severe. Slight. Sligfit. Sli^t. Slight. Slight. Slight. Moderate. Slight. Slight. Sli^t. Slight. Slight. Sligjit. ACOUSTICAL ANALYSIS REPORT Laguna Condominiums 735 Laguna Drive Carisbad, CA ^001-1651 • APN: 203-110-42 M3 ; Prepared Bv ^ Eilar Associates ; / Acoustical^ En\^onmental Cc^sulting 539 Encilitas |oulevard, Suite 206- Enci^tas,€alifornia 92024 wwW^i laiassociates. CO m Ph%i#60-753-1865 Fs&leo- Job#A60718N1 July 26, 2006 TABLE OF CONTENTS Page 1.0 EXECUTIVE SUMMARY 1 2.0 INTRODUCTION 2 2.1 Project Location 2.2 Project Description 3.0 ENVIRONMENTAL SETTING 2 3.1 Existing Noise Environment 3.2 Future Noise Environment 4.0 METHODOLOGY AND EQUIPMENT 5 4.1 Methodology 4.2 Measurement Equipment 5.0 IMPACTS AND MITIGATION 7 5.1 Exterior 5.2 Interior 6.0 CERTIFICATION 10 7.0 REFERENCES 11 FIGURES 1. Vicinity Map 2. Assessor's Parcel Map 3. Satellite Aerial Photograph 4. Topographic Map 5. Planned Land Use Map 6. Site Plan Showing Current Overall Traffic CNEL Contours and Noise Measurement Location 7. Site Plan Showing Future Overall Traffic CNEL Contours and Noise Measurement Location 8. Second Floor Plan Showing Future CNEL Impacts at Proposed Second Level Residential Outdoor Use Areas 9. Third Floor Plan Showing Future CNEL Impacts at Proposed Third Level Residential Outdoor Use Areas and First Level Courtyard 10. Third Floor Plan Showing Future Traffic Exterior Building Fagade Impacts APPENDICES A. Traffic Noise Model Data and Results B. Exterior-to-lnterior Noise Analysis C. Sound Insulation Prediction Results D. Recommended Products E. Excerpts of Typical Building Plans, Elevations, and Cross-Sections 1.0 EXECUTIVE SUMMARY The proposed project, Laguna Condominiums, consists of the construction of one new three-story building with 4 units and a two-story building with 1 unit. The two buildings will contain four three- story residential units and one two-story residential unit located above the entrance to the garage. The project site is located at the southeast intersection of Laguna Drive and Madison Street in the City of Carlsbad, California. The primary noise sources in the vicinity of the project site include traffic noise from Laguna Drive. The current calculated on-site noise level at the northwestern corner of the project site is 59.5 CNEL. Due to a projected increase in traffic volume, the future (year 2030) noise level at the northwestern corner of the project site is expected to increase to 60.0 CNEL. Calculations show that future combined noise levels at the building facades will range from 40.5 CNEL at the first level southern fagade of residential Unit 5 to 62.5 at the second level northern fagade of the residential Unit 3. Since future exterior on-site noise levels will exceed 60 CNEL at some of the building facades, an exterior-to-interior noise analysis was conducted to evaluate the sound reduction properties of proposed exterior wall, window, and sliding glass door construction designs. Even with the increase in traffic noise levels impacting the proposed building facades, future interior noise levels in the habitable rooms will not exceed the 45 CNEL interior noise limit for habitable residential space. Representative worst-case exterior-to-interior calculations show that the future interior noise levels will meet the minimum requirements of 45 CNEL or less in residential spaces, with windows in an opened position. No mechanical ventilation system is required for this project as a result of this acoustical study. For further details, please referto Section 5.0 ofthis report. Eilar Associates Job#A60718N1 July 27,2006 Pagel 2.0 INTRODUCTION This acoustical analysis report is submitted to satisfy the acoustical requirements of the City of Carlsbad for a Major Redevelopment Permit and Tentative Tract Map approval. Its purpose is to assess noise impacts from nearby roadway traffic to identify project features or requirements necessary to achieve exterior outdoor use areas (balconies) to noise levels below 60 CNEL and interior noise levels of 45 CNEL or less in habitable residential space, in compliance with the City of Carlsbad and State of California noise regulations. All noise level or sound level values presented herein are expressed in terms of decibels, with A-weighting to approximate the hearing sensitivity of humans. Time-averaged noise levels are expressed by the symbol LEQ, for a specified duration. The CNEL is a 24-hour average, where sound levels during evening hours of 7:00 p.m. to 10:00 p.m. have an added 5 dB weighting, and sound levels during nighttime hours of 10:00 p.m. to 7:00 a.m. have an added 10 dB weighting. This is similar to the Day-Night sound level, LDN, which is a 24-hour average with an added 10 dB weighting on the same nighttime hours but no added weighting on the evening hours. Sound levels expressed in CNEL are always based on A-weighted decibels. These metrics are used to express noise levels for both measurement and municipal regulations, for land use guidelines, and for enforcement of noise ordinances. Further explanation can be provided upon request. 2.1 Project Location The project site is located on the southeast corner of Laguna Drive and Madison Street in the City of Carlsbad, California. The Assessor's parcel number (APN) for the property is 203-110-42 & 43. The overall property is irregular in shape with an overall site area of approximately 0.33 acres. Neighboring land use in the proximity of the project is residential. The project location is shown on the Thomas Guide Map, Figure 1, following this report. An Assessor's Parcel Map, Satellite Aerial Photograph, Topographic Map, and Planned Land Use Map of this area are also provided as Figures 2 through 5. 2.2 Project Description The proposed project consists of two buildings: one three-story building with four units and one two- story building with one unit. The building is proposed to be constructed on a 0.33 acre lot located on the southeastern corner of Laguna Drive and Madison Street, in the City of Carlsbad, California. 3.0 ENVIRONMENTAL SETTING 3.1 Existing Noise Environment The primary noise sources in the vicinity of the project site include traffic noise from Laguna Drive. Madison Street is located in the immediate vicinity of the project site. Conducting a Madison Street traffic volume research through the City of Carlsbad and the San Diego Association of Governments (SanDAG), it was determined that no current or future traffic volume information is available because of the low traffic volume on this small residential roadway. There are no bus stops located in the immediate vicinity of the project site, therefore, bus stop noise is determined to be negligible. No other noise sources are considered to be significant. Eilar Associates Job#A60718N1 July 27,2006 Page 2 3.1.1 Vehicle Traffic Noise Laguna Drive is a two-lane, two-way Local Street running east-west in the vicinity of the project site. The paved roadway width is approximately 30 feet, curb to curb. The posted speed limit is 30 mph. Laguna Drive, in the vicinity of the project site, currently carries a traffic volume of approximately 7,000 Average Daily Trips (ADT), according to the SanDAG Traffic Volume Forecast information center located on the SanDAG website at maximus.sandag.org/tfic/f2030tall/viewer. The current calculated on-site traffic noise level at the northwestern corner of the project site is 59.5 CNEL. Current and future traffic volumes for the roadway sections near the project site are shown in Table 1. For further roadway details and projected future ADT traffic volumes, please refer to Appendix A: Traffic Noise Model Data and Results. Roadway Name Speed Limit (mph) Current Future Current ADT Future (2030) ADT Laguna Drive 30 30 7,000 8,000 The noise environment at the project site is primarily the result of vehicle traffic traveling on Laguna Drive. Without mitigation or proposed project stmctures, the current 65 CNEL traffic noise contour is located approximately 21.3 feet south of the centeriine of Laguna Drive along the north side of the property. The current 60 CNEL contour is similarly located approximately 38.6 feet from the Laguna Drive centeriine, again on the north side of the property. The current 55 CNEL contour is located approximately 61.2 feet from the Laguna Drive centeriine. The current 50 CNEL contour is located approximately 94.5 feet from the Laguna Drive centeriine. For a graphical representation of these contours, please refer to Figure 6: Site Plan Showing Current Traffic CNEL Contours and Noise Measurement Location. 3.1.2 Measured Noise Level An on-site inspection and traffic noise measurement were made on the afternoon of Monday, July 24, 2006. The weather conditions were as follows: clear skies, low humidity, temperatures in the low 80's with winds from the southwest at 2-4 mph. A "one-hour" equivalent measurement was made at the northwestern corner of the project site. The microphone position was placed approximately five feet above the existing project site grade. Traffic volumes for Laguna Drive were recorded for automobiles, medium-size trucks, and large trucks during the measurement period. After a continuous 15-minute sound level measurement, there was no change in the LEQ and results were then recorded. The measured noise level and related weather conditions are found in Table 2. The calculated equivalent hourly vehicle traffic count adjustment and a complete tabular listing of all traffic data recorded during the on-site traffic noise measurement are found in Appendix A: Traffic Noise Model Data and Results. Eilar Associates Job #A60718N1 July 27, 2006 Page 3 Date Monday, July 24, 2006 Time 2:15 p.m. -2:30 p.m. Conditions Clear Skies, Winds from the Southwest @ 2-4 mph, Temperature Low 80's with Low Humidity Measured Noise Level 56.9 dBA LEQ 3.1.3 Calculated Noise Level Noise levels were calculated for the site using the methodology described in Section 4.1 (see next page) for the location, conditions, and traffic volumes counted during the noise measurements. The calculated noise levels (LEQ) were compared with the measured on-site noise level to determine if adjustments or corrections (calibration) should be applied to the traffic noise prediction model. Traffic Noise Model Version 2.5. Adjustments are intended to account for site-specific differences, such as reflection and absorption, which may be greater or lesser than accounted for in the model. The measured noise level of 56.9 dBA LEQ for Laguna Drive was compared to the calculated (modeled) noise level of 58.5 dBA LEQ, for the same conditions and traffic flow. As there was only a 1.6 dB difference between the measured and the calculated noise level, no adjustment was deemed necessary to model future noise levels for this location. Please refer to Table 3, for further evaluation. Roadways Calculated Measured Difference Correction Laguna Drive 58.5 dBA LEQ 56.9 dBA LEQ 1.6 dB None 3.2 Future Noise Environment The future (2030) traffic volume for Laguna Drive is based on numbers obtained from the San Diego Association of Governments (SanDAG) 2030 Traffic Volume Forecast. The future (2030) traffic volume is projected to be 8,000 ADT for Laguna Drive. The future (2030) traffic noise level at the northwestern corner of the project site is expected to increase to 60.0 CNEL. The roadway classification, speed limit, alignment and roadbed grade elevations are expected to remain the same for this section of roadway. For further roadway details and projected future ADT traffic volumes, please refer to Appendix A: Traffic Noise Model Data and Results. Eilar Associates Job #A60718N1 July 27, 2006 Page 4 4.0 METHODOLOGY AND EQUIPMENT 4.1 Methodology 4.1.1 Field Measurement Typically, a "one-hour" equivalent sound level measurement (LEQ, A-Weighted) is recorded for at least one noise-sensitive location on the site. During the on-site noise measurement, start and end times are recorded, vehicle counts are made for cars, medium trucks (double-tires/two axles), and heavy trucks (three or more axles) for the corresponding road segment(s). Supplemental sound measurements of one hour or less in duration are often made to further describe the noise environment of the site. For measurements of less than one hour in duration, the measurement time is long enough for a representative traffic volume to occur and the noise level (LEQ) to stabilize; 15 minutes is usually sufficient for this purpose. The vehicle counts are then converted to one-hour equivalent volumes by using the appropriate multiplier. Other field data gathered includes measuring or estimating distances, angles-of-view, slopes, elevations, roadway grades, and vehicle speeds. This data was checked against the available maps and records. 4.1.2 Roadway Noise Calculation The Traffic Noise Model, Version 2.5 program released by the U.S. Department of Transportation was used for calculate the future daytime average hourly noise level (HNL) at various locations at the project site. The daytime average hourly traffic volume is calculated as 0.058 times the ADT, based on the studies made by Wyle Laboratories (see reference). The HNL is equivalent to the LEQ, and both are converted to the CNEL by adding 2.0 decibels, as shown in the Wyle Study. Future CNEL is calculated for desired receptor locations using future road alignment, elevations, lane configurations, projected traffic volumes, estimated truck mixes, and vehicle speeds. Noise attenuation methods may be analyzed, tested, and planned with TNM, as required. Further explanation can be supplied on request. 4.1.3 Exterior-to-lnterior Noise Calculation The State Building Code, local municipalities, and other agencies (such as HUD) require an acoustical analysis for any multi-unit residential facility proposed in an area that has or will have exterior noise levels in excess of 60 CNEL. This analysis must demonstrate building features and mitigation that will provide interior noise levels of 45 CNEL or less for residential units, classrooms, or other habitable interior areas. Analysis for the interior noise levels requires consideration of: Number of unique assemblies in the wall (doors, window/wall mount air conditioners, sliding glass doors, and windows) Size, number of units, and sound transmission data for each assembly type Length of sound impacted wall(s) Depth of sound impacted room Height of exterior wall of sound impacted room Exterior noise level at wall assembly or assemblies of sound impacted room Eilar Associates Job#A60718N1 July 27,2006 Page 5 The Composite Sound Transmission data is developed for the exterior wall(s) and the calculated noise exposure is converted to octave-band sound pressure levels (SPL) by addition of an octave data curve for typical traffic noise. The reduction in room noise due to absorption is calculated and subtracted from the interior octave noise levels, and the octave noise levels are logarithmically added to produce the overall interior room noise level. When interior noise levels exceed 45 CNEL, the noise reduction achieved by each element is reviewed to determine what changes will achieve the most cost-effective compliance. Windows are usually the first to be reviewed, followed by the doors, and then the walls. Modeling of interior sound wall assemblies using building plans is accomplished using INSUL Version. 6.0, which is a model-based computer program developed by Marshall Day Acoustics for predicting the sound insulation of walls, floors, ceilings and windows. It is acoustically based on theoretical models that require only minimal material information and can make reasonable estimates of the sound transmission loss (TL) and Sound Transmission Class (STC) for use in sound insulation calculations. INSUL can be used to quickly evaluate new materials or systems or investigate the effects of changes to existing designs. It models individual materials using the simple mass law and coincidence frequency approach and can model more complex assembly partitions as well. It has evolved over several versions into an easy-to-use tool and has refined the theoretical models by continued comparison with laboratory tests to provide acceptable accuracy for a wide range of constructions. INSUL model performance comparisons with laboratory test data show that the model generally predicts the performance of a given assembly within 3 STC points. 4.2 Measurement Equipment Some or all of the following equipment was used at the site to measure existing noise levels: Larson Davis Model 720 Integrating Sound Level Meter, Serial # 0263 Larson Davis Model CAI 50 Calibrator, Serial # 0203 Hand-bearing magnetic compass, microphone with windscreen, tripods Distance measurement wheel, digital camera The sound level meter was field-calibrated immediately prior to the noise measurement and checked aften/vard, to ensure accuracy. All sound level measurements conducted and presented in this report, in accordance with the regulations, were made with a sound level meter that conforms to the American National Standards Institute specifications for sound level meters ANSI SI.4-1983 (R2001). All instruments are maintained with National Bureau of Standards traceable calibration, per the manufacturers' standards. 5.0 IMPACTS AND MITIGATION 5.1 Exterior The future noise environment is primarily the result of vehicle traffic traveling on Laguna Drive. Without mitigation or proposed project structures, the future 65 CNEL traffic noise contour is located approximately 25.3 feet south ofthe centeriine of Laguna Drive along the north side ofthe property. The future 60 CNEL contour is similarly located approximately 42.6 feet from the Laguna Drive centeriine, again on the north side of the property. The future 55 CNEL contour is located approximately 65.2 feet from the Laguna Drive centeriine. The future 50 CNEL contour is located approximately 105 feet from the Laguna Drive centeriine. For a graphical representation of these Eilar Associates Job#A60718N1 July 27,2006 Page 6 contours, please refer to Figure 7: Site Plan Showing Future Overall Combined CNEL Contours and Noise Measurement Location. The City of Cartsbad Element of the General Plan states that exterior noise levels shall not exceed 60 CNEL at residential outdoor usable areas. Calculations show that future traffic noise levels at the proposed residential outdoor use areas will range from 28.2 CNEL in the courtyard to 57.6 CNEL at the third level balcony of Unit 4. These outdoor use area noise levels are only possible with the construction of a solid balcony. The open steel lattice railing on the perimeter of the balconies will need to be replaced with a solid wall. Table 4 summarizes the future traffic noise impacts to the proposed residential outdoor use areas. Please refer to Figure 8 and 9: Second Floor Plan Showing Future CNEL Impacts at Proposed Second Level Residential Outdoor Use Areas and Third Floor Plan Showing Future CNEL Impacts at Proposed Third Level Residential Outdoor Use Areas and First Level Courtyard. Tat Receiver Floor Receiver Location Exterior Trafflc CNEL R-1 3 Unit 1 Balcony 56.2 R-2 3 Unit 2 Balcony 53.4 R-3 3 Unit 3 Balcony 56.8 R-4 3 Unit 4 Balcony 57.6 R-5 2 Unit 5 Balcony 43.7 R-6 1 Courtyard 28.2 Calculations show that future combined noise levels at the building facades will range from 40.5 CNEL at the 1^* level southern fagade to 62.5 CNEL at the 2""^ level northern fagade of the building. Table 5 summarizes the future traffic noise impacts to the proposed exterior building facades. Please refer to Figure 10: Third Floor Plan Showing Future Traffic Exterior Building Fagade Impacts Eilar Associates Job #A60718N1 July 27, 2006 Page 7 Receiver Floor Receiver Location Exterior Traffic CNEL R-1 1 North Fagade 60.3 R-2 2 North Fagade 62.5 R-3 3 North Fagade 62.3 R-4 1 East Fagade 52.0 R-5 2 East Fagade 53.2 R-6 3 East Fagade 55.4 R-7 1 West Fagade 49.5 R-8 2 West Fagade 51.5 R-9 3 West Fagade 51.8 R-10 2 South Fagade 44.9 R-11 3 South Fagade 46.5 5.2 Interior The State of California requires buildings to be designed in order to attenuate, control, and maintain interior noise levels to below 45 CNEL in habitable multi-family residential space. Current exterior building construction is generally expected to achieve at least 15 decibels of exterior-to-interior noise attenuation, with windows opened. Therefore, proposed project building structures exposed to exterior noise levels greater than 60 CNEL could be subject to interior noise levels exceeding the 45 CNEL noise limit for residential habitable space. Future traffic noise levels will exceed 60 CNEL at the northern facing exterior building facades. Due to the elevated worst-case future traffic exterior noise level impacts at these building facades, an exterior-to-interior noise analysis was conducted to evaluate the sound reduction properties of proposed exterior wall, window, and sliding glass door construction designs. Please refer to Appendix C: Exterior-to-lnterior Noise Analysis. The architectural building plan specifications for the typical exterior wall assembly incorporated into this acoustical analysis are: Single layer of 7/8-inch thick stucco Single layer of 1/2-inch thick shear plywood 2-inch wide by 4-inch deep wood studs, placed 18-inches on-center Single layer of 3 1/2-inch thick faced fiberglass (R-13) batt insulation Single layer of 5/8-inch thick gypsum board INSUL evaluation of the exterior wall proposed for this project resulted in an approximate STC rating of 45, which was incorporated into our analysis. Please referto Appendix C: Sound Insulation Prediction Results. Eilar Associates Job#A60718N1 July 27, 2006 Page 8 Our exterior-to-interior analysis also incorporates a minimum STC 31, 5/8-inch thick, dual insulating windows and sliding glass doors, as the minimum recommended configuration. The STC 31 window assembly is constructed as follows: 1/8-inch glass, 3/8-inch air gap, 1/8-inch glass The listed STC value is based on "Center-of-Glass" test data. Any window and frame configuration may be used as long as it meets or exceeds the minimum STC rating and corresponding octave band performance for the above window. Window "Center-of-Glass" performance for the recommended window is provided in Appendix C: Sound Insulation Prediction Results. With the proposed exterior wall assembly, window, and glass door configurations specified above, all rooms will comply with the City of Carisbad interior noise code regulations, with windows and doors in an opened position. Please refer to Table 6, showing future interior noise levels with the recommendations made herein. Table 6. Future Interior Noise Levels with MItlgatlon.Recommendatlons Location Level Room Exterior Facade (CNEL) Minimum Window Rating (STCT Interior CNEL (windows open) Interior CNEL (windows closed) Mechanical Ventilation Unitl 2 Master Bedroom 62.5 31 41.6 28 Not Required Unit 2 1 Living Room 60.3 31 37.3 25.5 Not Required Unit 2 2 Master Bedroom 62.5 31 40.0 26.6 Not Required Units 3 Bonus Room 62.3 31 35.0 28.0 Not Required Unit 4 2 Master Bedroom 62.5 31 41.1 27.4 Not Required Unit 4 1 Living Room 60.3 31 35.4 23.9 Not Required The proposed residential homes were analyzed for worst-case exterior noise impacts. All rooms will have satisfactory interior noise levels, if built according to the wall, window, sliding glass door, and mechanical ventilation plans reviewed for this acoustical analysis. No mechanical ventilation system is required for this project as a result of this acoustical study. The exterior-to-interior calculations and recommendations will satisfy the acoustical requirements necessary to meet the California Code of Regulations, Title 24. Exterior residential entrance doors must include all-around weather-tight door stop seals and an improved threshold closure system. The additional hardware will improve the doors' overall sound reduction properties. The transmission loss (TL) of an exterior door without weather-tight seals is determined mostly by sound leakage, particulariy at the bottom of the door if excessive clearance is allowed for air transfer. By equipping the exterior door with all-around weather-tight seals and a threshold closure at the bottom, the STC rating can be increased by approximately 10 points. It is imperative to seal and caulk between the door's rough opening and the finished door frame, using an acoustically resilient, non-skinning butyl caulking compound. This should be used as generously as possible, to ensure effective sound barrier isolation. The OSI Pro Series SC-175 Eilar Associates Job #A60718N1 July 27, 2006 Page 9 acoustic sound sealant is a product specifically designed for this purpose. Head and jamb door seals are to be applied to the door frame stops. If the acoustical door stop seals are applied on top of the stops in the frame, the height and width of the opening is reduced, and the handle may require an extended offset for ease of operation. For more information, please refer to Appendix D: Recommended Products. Also, refer to Appendix E: Excerpts of Typical Building Plans, Elevations, and Cross-Sections. 6.0 CERTIFICATION The findings and recommendations of this acoustical analysis report are based on the information available and are a true and factual analysis of the potential acoustical issues associated with the Laguna Condominiums project in the City of Carisbad, California. This report was prepared by Kevin Fowler, lan Brewe, Michael Burrill, and Douglas Eilar. -f^eviflfl^owler. Acoustical Consultant Michael Burrill, Senior Acoustical Consultant Eilar Associates Job #A60718N1 July 27, 2006 Page 10 7.0 REFERENCES 1. 2001 California Building Code, Based on the 1997 Uniform Building Code, Appendix Chapter 12, Division II - Sound Transmission Control, Section 1208 - Sound Transmission Control. 2. 2001 California Building Code, Based on the 1997 Uniform Building Code, Chapter 12, Section 1203.3-Ventilation. 3. 2001 California Noise Insulation Standards, effective 11/01/02, Based on 1997 Uniform Building Code, California Code of Regulations, Title 24. 4. City of Carisbad Noise Element to the General Plan. 5. Harris, Cyril M., Handbook of Acoustical Measurements and Noise Control, 3^^ Edifion, Acousfical Society of America, 1998. 6. Heeden, Robert A., Compendium of Materials for Noise Control, U.S. Department of Health, Education and Welfare, National Institute for Occupational Safety and Health, November 1978. 7. Irvine, Leland K., Richards, Roy L., Acousfics and Noise Control Handbook for Architects and Builders, Kreiger Publishing Company, 1998. 8. NBS Building Sciences Series 77, Acoustical and Thermal Performance on Exterior Residential Walls, U.S. Department of Commerce/Nafional Bureau of Standards, November 1976. 9. Western Electro-Acoustic Laboratory, Inc., 1711 Sixteenth Street, Santa Monica, California 90404, 213-80-9268, Sound Transmission Loss Vs. Glazing Type, Window Size and Air Filtration, January 1985. The research described in this report was prepared for the California Association of Window Manufacturers, 823 North Harbor Boulevard, Suite E, Fullerton, California 92632, 714-525-7088. Eilar Associates Job #A60718N1 July 27,2006 Page 11 FIGURES Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-753-1865 Vicinity Map Job#A60718N1 Figure 1 No Scale ^ S if* • Project Location mm • LEGEND Reference Layers Parcels ^ Roads 1. APN: 203-110-42-00 2. APN: 203-110-43-00 Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-753-1865 Assessor's Parcel Map Job#A60718N1 Figure 2 Project Location LEGEND Planned Land Use Residential Commerdal Industrial PubHc Facilities Parks Agriculture Water IPHH Reservations Reference Layers Parcels . . Roads Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-753-1865 Planned Land Use Map Job#A60718N1 Figure 5 LAGUNA DRIVE 50 CNEL Contour 55 CNEL Contour 60 CNEL Contour 65 CNEL Contour LOT 46 MAP 1722 SITE PLAN Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-763-1865 Site Plan Showing Current Traffic CNEL Contours and Noise Measurement Location Job#A60718N1 Figure 6 LAGUNA DRIVE LOT 46 MAP 1722 50 CNEL Contour 55 CNEL Contour 60 CNEL Contour 65 CNEL Contour Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-753-1865 Site Plan Showing Future Traffic CNEL Contours and Noise Measurement Location Job#A60718N1 Figure 7 4 LAMNAOMVC Future Traffic CNEL at Proposed Outdoor Use Areas Receiver Floor Receiver Location Exterior Traffic CNEL R-5 2 Unit 5 Balcony 43.7 Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-753-1865 Second Floor Plan Showing Future CNEL impacts at Proposed Second Level Residential Outdoor Use Areas Job#A60718N1 Figure 8 4 lAmMAVUNK Future Traffic CNEL at Proposed Outdoor Use Areas Receiver Floor Receh/er Location Exterior Traffic CNEL R-1 3 Unit 1 Balcony 56.2 R-2 3 Unit 2 Balcony 53.4 R-3 3 Unit 3 Balcony 56.8 R-4 3 Unit 4 Balcony 57.6 R-6 1 Courtyard 28.2 Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-753-1865 Third Floor Plan Showing Future CNEL Impacts at Proposed Third Level Residential Outdoor Use Areas and First Level Courtyard Job#A60718N1 Figure 9 4 t>«MA pnive Future Traffic Exterior Building Facade Impacts Recelvei Floor Receiver Location Exterior Traffic CNEL R-1 1 North Fagade 60.3 R-2 2 North Fagade 62.5 R-3 3 North Fagade 62.3 R-4 1 East Fagade 52.0 R-5 2 East Fagade 53.2 R-6 3 East Fagade 55.4 R-7 1 West Fagade 49.5 R-8 2 West Fagade 51.5 R-9 3 West Fagade 51.8 R-10 2 South Fagade 44.9 R-11 3 South Fagade 46.5 Eilar Associates 539 Encinitas Boulevard, Suite 206 Encinitas, California 92024 760-753-1865 Third Floor Plan Showing Future Traffic Exterior Building Facade Impacts Job#A60718N1 Figure 10 APPENDIX A Traffic Noise Model Data and Results TNM Traffic Data and Results Laguna Condos n-Site Noise Measurement Conditions and Results. .. :^'.-fmm^mm Date Monday, July 24'^ 2006 Time 2:15 p.m. -2:30 p.m. Conditions Clear skies, winds form the southwest @ 2-4 mph, temperature in the low 80's with low humidity Measured Noise Level 56.9 dBA LEQ Site.Nolse.Mea suremenfcTrafl Roadways Duration Autos Medium Trucks Heavy Trucks Total Laguna Drive Measured 15 minuets 55 0 0 55 Westbound Overall 60 minuets 220 0 0 220 Laguna Drive Measured 15 minuets 67 0 0 67 Eastbound Overall 60 minuets 268 0 0 268 . .-./r"Calculated^efsiis.Me4^ Roadways Measured Calculated Difference Correction Laguna Drive 56.9 dBA LEO 58.5 dBA LEG 1.6 dB None applied Current Traffic Reference Information • Current traffic ADT for Laguna Drive was obtained from the San Diego Association of Governments (SanDAG) 2000 Traffic Volume Forecast, Series 10, as listed in the Transportation Forecast Information Center on the SanDAG website at www.sandaq.com. Future Traffic Reference Information • Future (year 2030) traffic ADTs for Laguna Drive were obtained from the San Diego Association of Governments (SanDAG) 2030 Traffic Volume Forecast, Series 10, as listed in the Transportation Forecast Information Center on SanDAG website at www.sandaq.com. Eilar Associates Job #A60718N1 TNM Traffic Data and Results July 27, 2006 Page 1 Current f20d0) Overall Tri^cW^^^^'^^^''^^^^^^''^^^^^^'-UUI 1 Bill v^uuyi v^vvidii ;U^U2r4u?i3Ul2&^ Roadway Name Speed Limit (mph) Truck Percentaij 3e(%)aridAWT Roadway Name Speed Limit (mph) Total % Auto Medium Truck Heavy Truck Roadway Name Speed Limit (mph) AWT Auto Medium Truck Heavy Truck Laguna Drive 30 100% 100% 0% 0% Laguna Drive 30 7,000 406 0 0 Future (2030) Overall Traffic.lnforina^^^ Roadway Name Speed Limit (mph) Truck Percental 36 (%) and AWT Roadway Name Speed Limit (mph) Total % Auto Medium Truck Heavy Truck Roadway Name Speed Limit (mph) AWT Auto Medium Truck Heavy Truck Laguna Drive 30 100% 100% 0% 0% Laguna Drive 30 8.000 464 0 0 Eilar Associates Job #A60718N1 TNM Traffic Data and Results July 27, 2006 Page 2 CNEL Adjustment Calculation Sheet for TNM Results ' Current Calculated!l^js^eve^*^^Pf ^ Receiver Identification TNM Result (Uq) Adjustment (dB) CNEL Measured Location 57.5 2.0 59.5 ' - . :.:P"tyJ^2g35JS^i^^ Receiver Identification TNM Result (Leq) Adjustment (dB) CNEL Measured Location 58.0 2.0 60.0 Receiver Identification TNM Result (Uq) Adjustment (dB) CNEL 55 CNEL 53.0 2.0 55.0 60 CNEL 58.0 2.0 60.0 iF^itti^AI'ill^fh^^^^^p^^^ Receiver Floor Receiver Location Exterior Traffic CNEL R-1 3 Unit 1 Balcony 56.2 R-2 3 Unit 2 Balcony 53.4 R-3 3 Unit 3 Balcony 56.8 R-4 3 Unit 4 Balcony 57.6 R-5 2 Unit 5 Balcony 43.7 R-6 1 Courtyard 28.2 Eilar Associates Job#A60718N1 TNM Traffic Data and Results July 27, 2006 Page 3 ^•"^^Ip^u^^^^^l^JBrti^wrBulWinj^ ' • •'>••••''• Receiver Floor Receiver Location Exterior Traffic CNEL R-1 1 North Fagade 60.3 R-2 2 North Fagade 62.5 R-3 3 North Fagade 62.3 R-4 1 East Fagade 52.0 R-5 2 East Fagade 53.2 R-6 3 East Fagade 55.4 R-7 1 West Fagade 49.5 R-8 2 West Fagade 51.5 R-9 3 West Fagade 51.8 R-10 2 South Fagade 44.9 R-11 3 South Fagade 46.5 Eilar Associates Job #A60718N1 TNM Traffic Data and Results July 27, 2006 Page 4 EILAR ASSOCIATES: Calibration to On-site Measurement Prepared by Project Number Project Name Run Title Kevin Fowler A60718N1 Laguna Condos Project Calibration to On-site Measurement Client Name Attention Cohn+Associates Gary Cohn Roadways Points Name Width Name No. Coordinates (pavement) Flow Control Segment Name Width Name No. X y z Control Device Speed Constraint Percent Vehicles Affected Pavement Type On Struct? Name ft Name No. ft ft ft Control Device mph % Pavement Type On Struct? Laguna WestBound 12 pointi 1 377.8 12 52 Average point2 2 -444.5 12 43 Laguna Eastbound" 12 points 3 -444.5 0 43 Average point4 4 377.8 0 52 Eilar Associates A60718N1 Calibration Roadway Coordinates 7/27/2006 Roadways Points Name Name No. Segment Name Name No. Autos Mtrucks Htrucks Buses Motorcycles Name Name No. Volume Speed Volume Speed Volume Speed Volume Speed Volume Speed Name Name No. veh/hr mph Laguna WestBound pointi 1 220 30 0 0 0 0 0 0 0 0 point2 2 Laguna Eastbound points 3 2S8 30 0 0 0 0 0 0 0 0 point4 4 Madison Northbound points 5 0 0 0 0 0 0 0 0 0 points 6 Madison Northbound W/St point7 7 0 0 0 0 0 0 0 0 0 points 8 Roadways" pointi 0 10 0 0 0 0 0 0 0 0 0 pointi 1 11 Eilar Associates AS0718N1 Calibration Traffic Volume 7127/2006 Barriers Points Name Type If berm Name No. Coordinates Height at point Segment Name Type top width run: rise Name No. X y z Height at point Segment height pertubatlon On struct? Name Type top width run: rise Name No. X y z Height at point Incre- ment #Up #Dn On struct? Name Type ft ft:ft Name No. ft ft ft ft ft #Up #Dn On struct? Retaining Wall Will Be Removed W pointi 1 101.4 -6 43 4 0 0 0 point2 2 101.4 -120.2 43 4 0 0 0 points 3 86.7 -130.2 43 4 Residential House To Be Remov W point4 4 106.8 -21.7 43 15 0 0 0 points 5 158.5 -21.7 43 15 0 0 0 points S 158.5 -75.1 43 15 0 0 0 point7 7 106.8 -75.1 43 15 0 0 0 points 8 106.8 -21.7 43 15 Residential House 1" W point9 9 -66.7 -11.1 43 15 0 0 0 pointi 0 10 -22.2 -77.8 43 15 0 0 0 pointi 1 11 -55.6 -111.1 43 15 0 0 0 pointi 2 12 -111.1 -44.5 43 15 0 0 0 pointi 3 13 -66.7 -11.1 43 15 Apartment Complex 2" W pointi 4 14 0 -111.1 43 15 0 0 0 pointi 5 15 44.5 -166.7 43 15 0 0 0 pointi S 16 -77.8 -255.6 43 15 0 0 0 pointi 7 17 -111.1 -189 43 15 0 0 0 pointi 8 18 0 -111.1 43 15 Residential House 2" W pointi 9 19 100 -122.2 43 15 0 0 0 point20 20 133.4 -88.9 43 15 0 0 0 point21 21 155.6 -122.2 43 15 0 0 0 point22 22 133.4 -144.5 43 15 0 0 0 point23 23 100 -122.2 43 15 Residential House 3" W point24 24 177.8 -6 43 15 0 0 0 point25 25 200 -6 43 15 0 0 0 point2S 26 200 -22 43 15 0 0 0 point27 27 211.1 -22 43 15 0 0 0 point28 28 211.1 -44 43 15 0 0 0 point29 29 177.8 -44 43 15 0 0 0 pointSO 30 177.8 -6 43 15 Apartment Complex 1" W pointSI 31 22.2 233.4 43 15 0 0 0 point32 32 88.9 233.4 43 15 0 0 0 point33 33 88.9 44.5 43 15 0 0 0 point34 34 22.2 44.5 43 15 0 0 0 point35 35 22.2 233.4 43 15 Eilar Associates A60718N1 Calibration Barriers 7/27/2006 Receivers Sound Levels Coordinates (pavement) Calculated Laeq ihr Name No. No. of Dwelling Units X y z Height above ground With Barrier Without Barrier Noise Reduction ft ft ft ft dBA dBA dBA Measured Location 39 1 63.7 -31 43 5 58.5 58.5 0 Eilar Associates A60718N1 Calibration Receivers and Sound Levels 7/27/2006 EILAR ASSOCIATES: Current Contours Prepared by Project Number Project Name Run Title Kevin Fowler A60718N1 Laguna Condos Project Current Contours Client Name Attention Cohn+Associates Gary Cohn Roadways Points Name Width Name No. Coordinates (pavement) Flow Control Segment Name Width Name No. X y z Control Device Speed Constraint Percent Vehicles Affected Pavement Type On Struct? Name ft Name No. ft ft ft Control Device mph % Pavement Type On Struct? Laguna WestBound 12 pointi 1 377.8 12 52 Average point2 2 -444.5 12 43 Laguna Eastbound" 12 points 3 -444.5 0 43 Average point4 4 377.8 0 52 Madison Northbound" 12 points S 166.7 -266.7 45 Average point6 6 44.5 -77.8 43 Madison Northbound W/Stop Si 12 point7 7 44.5 -77.8 43 Stop 0 50 Average points 8 0 -0.5 43 Madison Southbound 12 pointi 0 10 -12 -0.5 43 Average pointi 1 11 154.7 -266.7 45 Eilar Associates A60718N1 Current Contours Roadway Coordinates 7/27/2006 Roadways Points Name Name No. Segment Name Name No. Autos Mtrucks Htrucks Buses Motorcycles Name Name No. Volume Speed Volume Speed Volume Speed Volume Speed Volume Speed Name Name No. veh/hr mph Laguna WestBound pointi 1 203 30 0 0 0 0 0 0 0 0 point2 2 Laguna Eastbound points 3 203 SO 0 0 0 0 0 0 0 0 point4 4 Madison Northbound points 5 0 0 0 0 0 0 0 0 0 pointe 6 Madison Northbound W/St point7 7 0 0 0 0 0 0 0 0 0 points 8 Roadway6" pointi 0 10 0 0 0 0 0 0 0 0 0 pointi 1 11 Eilar Associates A60718N1 Curredt Contours Traffic Volume 7/27/2006 Barriers Points Name Type If berm Name No. Coordinates Height at point Segment Name Type top width run: rise Name No. X y z Height at point Segment height pertubation On struct? Name Type top width run: rise Name No. X y z Height at point Incre- ment #Up #Dn On struct? Name Type ft ft:ft Name No. ft ft ft ft ft #Up #Dn On struct? Retaining Wall Will Be Removed W pointi 1 101.4 -6 43 4 0 0 0 point2 2 101.4 -120.2 43 4 0 0 0 points 3 86.7 -130.2 43 4 Residential House To Be Remov W point4 4 106.8 -21.7 43 15 0 0 0 points 5 158.5 -21.7 43 15 0 0 0 point6 6 158.5 -75.1 43 15 0 0 0 point7 7 106.8 -75.1 43 15 0 0 0 points 8 106.8 -21.7 43 15 Residential House 1" W point9 9 -66.7 -11.1 43 15 0 0 0 pointi 0 10 -22.2 -77.8 43 15 0 0 0 pointi 1 11 -55.6 -111.1 43 15 0 0 0 pointi 2 12 -111.1 -44.5 43 15 0 0 0 pointi 3 13 -66.7 -11.1 43 15 Apartment Complex 2" W pointi 4 14 0 -111.1 43 15 0 0 0 pointi 5 15 44.5 -166.7 43 15 0 0 0 pointi 6 16 -77.8 -255.6 43 15 0 0 0 pointi 7 17 -111.1 -189 43 15 0 0 0 pointi 8 18 0 -111.1 43 15 Residential House 2" W pointi 9 19 100 -122.2 43 15 0 0 0 point20 20 133.4 -88.9 43 15 0 0 0 point21 21 155.6 -122.2 43 15 0 0 0 point22 22 133.4 -144.5 43 15 0 0 0 point23 23 100 -122.2 43 15 Residential House 3" W point24 24 177.8 -6 43 15 0 0 0 point25 25 200 -6 43 15 0 0 0 point26 26 200 -22 43 15 0 0 0 point27 27 211.1 -22 43 15 0 0 0 point28 28 211.1 -44 43 15 0 0 0 point29 29 177.8 -44 43 15 0 0 0 pointSO 30 177.8 -6 43 15 Apartment Complex 1" W pointSI 31 22.2 233.4 43 15 0 0 0 point32 32 88.9 233.4 43 15 0 0 0 pointSS 33 88.9 44.5 43 15 0 0 0 point34 34 22.2 44.5 43 15 0 0 0 pointSS 35 22.2 233.4 43 15 Eilar Associates A6071SN1 Current Contours Barriers 7/27/2006 Receivers Sound Levels Name No. No. of Dwelling Units Coordinates (pavement) Calculated Laeq 1 hr Name No. No. of Dwelling Units X y z Height above ground With Barrier Without Barrier Noise Reduction Name No. No. of Dwelling Units ft ft ft ft dBA dBA dBA Measured Location 39 1 63.7 -31 43 5 57.5 57.5 0 Receivers 3 1 26.7 -6 43 5 62.1 62.1 0 Receiver4" 4 1 5S.4 -6 43 5 62 62 0 Receivers" 5 1 80.1 -6 43 5 64.2 64.2 0 Receiver6" 6 1 106.8 -6 43 5 59.6 59.6 0 Receiver7" 7 1 133.5 -6 43 5 63.9 63.9 0 Receivers" 8 1 160.2 -6 43 5 64.2 64.2 0 Rece ive r9" 9 1 186.9 -6.5 43 5 41.9 41.9 0 Receiverl 0" 10 1 26.7 -26.7 43 5 59 59 0 Receiverl 1" 11 1 53.4 -26.7 43 5 58.3 58.3 0 Receiverl 2" 12 1 80.1 -26.7 43 5 57.6 57.6 0 Receiverl 3" 13 1 105.8 -26.7 43 5 55.7 55.7 0 Receiverl 4" 14 1 133.5 -26.7 43 5 41.2 41.2 0 Receiverl 5" 15 1 160.2 -26.7 43 5 50.7 50.7 0 Receiverl 6" 16 1 186.9 -26.7 43 5 42.3 42.3 0 Receiverl 8" 18 1 53.4 -53.4 43 5 54.9 54.9 0 Receiverl 9" 19 1 80.1 -53.4 43 5 54.2 54.2 0 Receiver20" 20 1 105.8 -53.4 43 5 52.3 52.3 0 Receiver21" 21 1 133.5 -53.4 43 5 41.6 41.6 0 Receiver22" 22 1 160.2 -53.4 43 5 46.4 46.4 0 Receiver23" 23 1 186.9 -53.4 43 5 37.7 37.7 0 Receiver24" 24 1 26.7 -80.1 43 5 51.3 51.3 0 Receiver25" 25 1 53.4 -80.1 43 5 50.7 50.7 0 Receiver26" 26 1 80.1 -80.1 43 5 50.1 50.1 0 Receiver27" 27 1 106.8 -80.1 43 5 49.1 49.1 0 Receiver2S" 28 1 133.5 -80.1 43 5 29 29 0 Receiver29" 29 1 160.2 -80.1 43 5 44.8 44.8 0 ReceiverSO" SO 1 186.9 -80.1 43 5 46.6 46.6 0 Receivers 1" 31 1 26.7 -106.8 43 5 48.2 48.2 0 RecieverSS" 33 1 80.1 -106.8 43 5 47.1 47.1 0 Receiver34" 34 1 106.8 -106.8 43 5 46.3 46.3 0 ReceiverSS" 35 1 133.5 -106.8 43 5 31.1 31.1 0 ReceiverSS" 36 1 160.2 -106.8 43 5 43.3 43.3 0 Receiver37" 37 1 186.9 -106.8 43 5 44.9 44.9 0 Eilar Associates A60718N1 Current Contours Receivers and Sound Levels 7/27/2006 EILAR ASSOCIATES: Future Contours Prepared by Project Number Project Name Run Title Kevin Fowler A60718N1 Laguna Condos Project Future Contours Client Name Attention Cohn+Associates Gary Cohn Roadways Points Coordinates (pavement) Flow Control Segment Name Width Name No. X y z Control Device Speed Constraint Percent Vehicles Affected Pavement Type On Struct? ft ft ft ft mph % Laguna WestBound 12 pointi 1 377.8 12 52 Average point2 2 -444.5 12 43 Laguna Eastbound" 12 points 3 -444.5 0 43 Average point4 4 377.8 0 52 Eilar Associates A60718N1 Future Contours Roadway Coordinates 7/27/2006 Roadways Points Name Name No. Segment Name Name No. Autos Mtrucks Htrucks Buses Motorcycles Name Name No. Volume Speed Volume Speed Volume Speed Volume Speed Volume Speed Name Name No. veh/hr mph Laguna WestBound pointi 1 232 30 0 0 0 0 0 0 0 0 point2 2 Laguna Eastbound points 3 232 30 0 0 0 0 0 0 0 0 point4 4 Eilar Associates A6071SN1 Future Contours Traffic Volume 7/27/2006 Barriers Points Name Type If berm Name No. Coordinates Height at point Segment Name Type top width run: rise Name No. X y z Height at point Segment height pertubation On struct? Name Type top width run: rise Name No. X y z Height at point Incre- ment #Up #Dn On struct? Name Type ft ft:ft Name No. ft ft ft ft ft #Up #Dn On struct? Residentiai House 1" W point9 9 -66.7 -11.1 43 15 0 0 0 pointi 0 10 -22.2 -77.S 43 15 0 0 0 pointi 1 11 -55.6 -111.1 43 15 0 0 0 pointi 2 12 -111.1 -44.5 43 15 0 0 0 pointi 3 13 -66.7 -11.1 43 15 Apartment Complex 2" W pointi 4 14 0 -111.1 43 15 0 0 0 pointi 5 15 44.5 -166.7 43 15 0 0 0 pointi 6 16 -77.8 -255.6 43 15 0 0 0 pointi 7 17 -111.1 -189 43 15 0 0 0 pointi 8 18 0 -111.1 43 15 Residential House 2" W pointi 9 19 100 -122.2 43 15 0 0 0 point20 20 133.4 -88.9 43 15 0 0 0 point21 21 155.6 -122.2 43 15 0 0 0 point22 22 133.4 -144.5 43 15 0 0 0 point2S 23 100 -122.2 43 15 Residential House S" W point24 24 177.8 -6 43 15 0 0 0 point25 25 200 -6 43 15 0 0 0 point26 26 200 -22 43 15 0 0 0 point27 27 211.1 -22 43 15 0 0 0 point2S 28 211.1 -44 43 15 0 0 0 point29 29 .177.8 -44 43 15 0 0 0 pointSO SO 177.8 -6 43 15 Apartment Complex 1" W pointSI 31 22.2 233.4 43 15 0 0 0 point32 32 88.9 233.4 43 15 0 0 0 pointSS 33 88.9 44.5 43 15 0 0 0 pointS4 34 22.2 44.5 43 15 0 0 0 point35 35 22.2 233.4 43 15 Eilar Associates A6071 SNI Future Contours Barriers 7/27/2006 Receivers Sound Levels Coordinates (pavement) Calculated Laeq Ihr Name No. No. of Dwelling Units X y z Height above ground With Barrier Without Barrier Noise Reduction ft ft ft ft dBA dBA dBA Measured Location 39 1 63.7 -31 43 5 58 58 0 Eilar Associates A6071SN1 Future Contours Receivers and Sound Levels 7/27/2006 EILAR ASSOCIATES: Future Impacts at Proposed Residential Outdoor Use Areas mi^tttinM^mn Prepared by Project Number Project Name Run Title Kevin Fowler A60718N1 Laguna Condos Project Client Name Attention Future Impacts at Prcposed Residentail Outdoor UJ Cohn+Associates Gary Cohn Roadways Points Name Width Name No. Coordinates (pavement) Flow Control Segment Name Width Name No. X y z Control Device Speed Constraint Percent Vehicles Affected Pavement Type On Struct? Name ft Name No. ft ft ft Control Device mph % Pavement Type On Struct? Laguna WestBound 12 pointi 1 377.8 12 52 Average point2 2 -444.5 12 43 Laguna Eastbound" 12 points 3 -444.5 0 43 Average point4 4 377.8 0 52 Madison Northbound" 12 points 5 166.7 -266.7 45 Average point6 6 44.5 -77.8 43 Madison Northbound W/Stop Si 12 point7 7 44.5 -77.8 43 Stop 0 50 Average points 8 0 -0.5 43 Madison Southbound 12 pointi 0 10 -12 -0.5 43 Average pointi 1 11 154.7 -266.7 45 Eilar Associates A6071SN1 Future Impacts at Residentail Outdoor Use Areas Roadway Coordinates 7/27/2006 Roadways Points Name Name No. Segment Name Name No. Autos Mtrucks Htrucks Buses Motorcycles Name Name No. Volume Speed Volume Speed Volume Speed Volume Speed Volume Speed Name Name No. veh/hr mph Laguna WestBound pointi 1 232 30 0 0 0 0 0 0 0 0 point2 2 Laguna Eastbound points 3 232 30 0 0 0 0 0 0 0 0 point4 4 Madison Northbound points 5 0 0 0 0 0 0 0 0 0 point6 6 Madison Northbound W/St point7 7 0 0 0 0 0 0 0 0 0 points 8 Roadway6" pointi 0 10 0 0 0 0 0 0 0 0 0 pointi 1 11 Eilar Associates A60615N1 Future Impacts at Proposed Residentail Outdoor Use Areas Traffic Volume 7/27/2006 Barriers Points Name Type If berm Name No. Coordinates Height at point Segment Name Type top width run: rise Name No. X y z Height at point Segment height pertubation On Struct? Name Type top width run: rise Name No. X y z Height at point Incre- ment #Up #Dn On Struct? Name Type ft ft:ft Name No. ft ft ft ft ft #Up #Dn On Struct? Residential House 1" W point9 9 -66.7 -11.1 43 15 0 0 0 pointi 0 10 -22.2 -77.8 43 15 0 0 0 pointi 1 11 -55.6 -111.1 43 15 0 0 0 pointi 2 12 -111.1 -44.5 43 15 0 0 0 pointi 3 13 -66.7 -11.1 43 15 Apartment Complex 2" W pointi 4 14 0 -111.1 43 15 0 0 0 pointi 5 15 44.5 -166.7 43 15 0 0| 0 pointi 6 16 -77.8 -255.6 43 15 0 0 0 pointi 7 17 -111.1 -189 43 15 0 0 0 pointi 8 18 0 -111.1 43 15 Residential House 2" W pointi 9 19 100 -122.2 43 15 0 0 0 point20 20 133.4 -S8.9 43 15 0 0 0 point21 21 155.6 -122.2 43 15 0 0 0 point22 22 133.4 -144.5 43 15 0 0 0 point23 23 100 -122.2 43 15 Residential House 3" W point24 24 177.8 -6 43 15 0 0 0 point25 25 200 -6 43 15 0 0 0 point26 26 200 -22 43 15 0 0 0 point27 27 211.1 -22 43 15 0 0 0 point28 28 211.1 -44 43 15 0 0 0 point29 29 177.8 -44 43 15 0 0 0 pointSO 30 177.8 -6 43 15 Apartment Complex 1" W pointSI 31 22.2 233.4 43 15 0 0 0 point32 32 88.9 233.4 43 15 0 0 0 pointSS 33 88.9 44.5 43 15 0 0 0 point34 34 22.2 44.5 43 15 0 0 0 pointSS 35 22.2 233.4 43 15 New Condos" W point44 44 155.8 -30.6 43 30.6 0 0 0 point45 45 103.8 -30.6 43 30.6 0 0 0 point46 46 95.9 -21.3 43 30.6 0 0 0 point47 47 87.9 -26.6 43 30.6 0 0 0 point48 48 93.2 -34.6 43 30.6 0 0 0 point49 49 73.2 -47.9 43 30.6 0 0 0 pointSO 50 63.9 -34.6 43 30.6 0 0 0 pointSI 51 53.3 -42.6 43 30.6 0 0 0 point52 52 58.6 -49.2 43 30.6 0 0 0 pointSS 53 49.3 -54.6 43 30.6 0 0 0 pointS4 54 69.2 -82.5 43 30.6 0 0 0 pointSS 55 107.8 -54.6 43 30.6 0 0 0 pointSS 56 130.5 -54.6 43 30.6 0 0 0 pointS7 57 130.5 -69.2 43 30.6 0 0 0 pointSS 58 89.2 -87.9 43 30.6 0 0 0 point59 59 93.1 -94.5 43 30.6 0 0 0 pointSO 60 85.2 -99.8 43 30.6 0 0 0 point61 61 95.6 -113.2 43 30.6 0 0 0 point62 62 155.8 -74.6 43 30.6 0 0 0 point6S 63 155.8 -30.6 43 30.6 Uniit 1 Deck" W point64 64 63.9 -34.6 43 25.2 0 0 0 point65 65 58.6 -26.6 43 25.2 0 0 0 point66 66 38.6 -39.9 43 25.2 0 0 0 point67 67 49.3 -54.6 43 25.2 Unit 2 Deck" W point6S 68 87.9 -26.6 43 25.2 0 0 0 point69 69 83.9 -21.3 43 25.2 0 0 0 point70 70 63.9 -34.6 43 25.2 Unit 3 and 4" W point71 71 155.8 -30.6 43 25.2 0 0 0 point72 72 155.8 -16 43 25.2 0 0 0 point73 73 142.4 -16 43 25.2 0 0 0 point74 74 142.4 -21.3 43 25.2 0 0 0 point7S 75 114.5 -21.3 43 25.2 0 0 0 point76 76 114.5 -30.5 43 25.2 Eilar Associates A6061 SNI Future Impacts at Proposed Residentail Outdoor Use Areas Barriers 7/27/2006 Unit 5 Deck 2 level" W point77 77 89.2 -87.1 43 18.6 0 0 0 point7S 78 87.9 -86.5 43 18.6 0 0 0 point79 79 75.9 -94.5 43 18.6 0 0 0 pointSO 80 79.9 -101.2 43 18.6 0 0 0 pointSI 81 83.9 -98.5 43 18.6 0 0 0 pointS2 82 85.2 -99.8 43 18.6 Eilar Associates A6061SN1 Future Impacts at Proposed Residentail Outdoor Use Areas Barriers 7/27/2006 Receivers Sound Levels Name No. No. of Dwelling Units Coordinates (pavement) Calculated Laeq 1 hr Name No. No. of Dwelling Units X y z Height above ground With Barrier Without Barrier Noise Reduction Name No. No. of Dwelling Units ft ft ft ft dBA dBA dBA Measured Location" 59 1 63.7 -31 43 S 3S.9 35.9 0 Unitl 61 1 47.9 -41.3 43 27.9 54.2 54.2 0 Unit 2" 62 1 79.9 -34.6 43 27.9 51.4 51.4 0 Unit 3" 63 1 123.8 -26.6 43 27.9 54.8 54.8 0 Unit 4" 64 1 149 -23.9 43 27.9 55.6 55.6 0 Unit 5" 65 1 85.2 -93.2 43 21.3 41.7 41.7 0 Courtyard" 66 1 102.5 -69.2 43 5 26.2 26.2 0 Eilar Associates A60615N1 Future Impacts at Proposed Residentail Outdoor Use Areas Receivers and Sound Levels 7/27/2006 EILAR ASSOCIATES: Future Building Fagade Impacts dbiillilMlMilHli Prepared by Project Number Project Name Run Title Kevin Fowler A60718N1 Laguna Condos Project Future Building Fa9ade Impacts Client Name Attention Cohn+Associates Gary Cohn Roadways Points Coordinates (pavement) Flow Control Segment Name Width Name No. X y z Control Device Speed Constraint Percent Vehicles Affected Pavement Type On Struct? ft ft ft ft mph % Laguna WestBound 12 pointi 1 377.8 12 52 Average point2 2 -444.5 12 43 Laguna Eastbound" 12 points 3 -444.5 0 43 Average point4 4 377.8 0 52 Eilar Associates A60615N1 Future Building Fa?ade Impacts Roadway Coordinates 7/27/2006 Roadways Points Name Name No. Segment Name Name No. Autos Mtrucks Htrucks Buses Motorcycles Name Name No. Volume Speed Volume Speed Volume Speed Volume Speed Volume Speed Name Name No. veh/hr mph Laguna WestBound pointi 1 232 30 0 0 0 0 0 0 0 0 point2 2 Laguna Eastbound points 3 232 30 0 0 0 0 0 0 0 0 point4 4 Eilar Associates A60615N1 Future Building Fagade Impacts Traffic Volume 7/27/2006 Barriers Points Name Type If berm Name No. Coordinates Height at point Segment Name Type top width run: rise Name No. X y z Height at point Segment height pertubation On struct? Name Type top width run: rise Name No. X y z Height at point Incre- ment #Up #Dn On struct? Name Type ft ft:ft Name No. ft ft ft ft ft #Up #Dn On struct? Residential House 1" W point9 9 -66.7 -11.1 43 15 0 0 0 pointi 0 10 -22.2 -77.8 43 IS 0 0 0 pointi 1 11 -55.6 -111.1 43 15 0 0 0 pointi 2 12 -111.1 -44.5 43 15 0 0 0 pointi 3 IS -66.7 -11.1 43 15 Apartment Complex 2" W pointi 4 14 0 -111.1 43 15 0 0 0 pointi 5 IS 44.5 -166.7 43 15 0 0 0 pointi 6 16 -77.8 -255.6 43 15 0 0 0 pointi 7 17 -111.1 -189 43 15 0 0 0 pointi S 18 0 -111.1 43 15 Residential House 2" W pointi 9 19 100 -122.2 43 15 0 0 0 point20 20 133.4 -88.9 43 15 0 0 0 point21 21 155.6 -122.2 43 IS 0 0 0 point22 22 133.4 -144.5 43 15 0 0 0 point23 23 100 -122.2 43 15 Residential House 3" W point24 24 177.8 -6 43 15 0 0 0 point25 25 200 -6 43 15 0 0 0 point26 26 200 -22 43 15 0 0 0 point27 27 211.1 -22 43 15 0 0 0 point28 28 211.1 -44 43 15 0 0 0 point29 29 177.8 -44 43 15 0 0 0 pointSO 30 177.8 -6 43 15 Apartment Complex 1" W pointSI 31 22.2 233.4 43 15 0 0 0 pointS2 32 88.9 233.4 43 IS 0 0 0 pointSS 33 88.9 44.5 43 15 0 0 0 point34 34 22.2 44.5 43 15 0 0 0 pointSS 35 22.2 233.4 43 15 Eilar Associates A60615N1 Future Building Fagade Impacts Barriers 7/27/2006 Receivers Sound Levels Name No. No. of Dwelling Units Coordinates (pavement) Calculated Laeq 1 hr Name No. No. of Dwelling Units X y z Height above ground With Barrier Without Barrier Noise Reduction Name No. No. of Dwelling Units ft ft ft ft dBA dBA dBA Measured Location" 59 1 63.7 -31 43 5 35.9 35.9 0 Eilar Associates A60615N1 Future Building Fagade Impacts Receivers and Sound Levels 7/27/2006 APPENDIX B Exterior-to-lnterior Noise Analysis EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Project* :A60718 Room Name: Unit 2 Level 1 Living Room Wall 1 of 2 Room Type: Moderate 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz Reverberation Time (sec) ; 1.2 1.2 1.2 1.2 1.0 1.0 : Moderately Reflective Room Room Absorption (Sabins): 182 182 182 182 228 228 Q) (Q 0 O —h CD Noise Level 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz Source 1: Traffic 60.3 CNEL 43.6 49.1 51.6 55.6 55.6 49.6 ; Traffic Spectrum Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 60.3 CNEL 43.6 49.1 51.6 55.6 55.6 49.6 : Effective Noise Spectrum Assemblv Type Open Widtli Heiqht Qtv Total Area 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz STC 45 Typical WE. 1 Construction N 17.3 9 1 113.3 33 40 45 45 43 51 STC 31 1/8"- J/8"-1/8" Y 8 5.3 1 42.4 24 20 26 35 46 39 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Room Depth: 29.3 ft Overall Area: 155.7 ft' Volume: 4562 ft' Number of Impacted Walls: 2 Windows Open 125 Hz 250 Hz 600 Hz IKHz 2KHz 4KHz Interior Noise Level: 37.3 CNEL 43.6 49.1 51.6 55.6 55.6 49.6 ; Exterior Wall Noise Exposure 8.6 8.6 8.6 8.7 8.7 8.7 : Transmission l oss Windows Closed 0.0 0.0 0.0 0.0 0.0 0.0 : Noise Reduction Interior Noise Level: 25.5 CNEL 22.6 22.6 22.6 22.6 23.6 23.6 : Absorption 21.0 26.5 29.0 33.0 32.0 26.0 : Noise Level 37.3 CNEL WINDOWS OPEN 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz 43.6 49.1 51.6 55.6 55.6 49.6 : Exterior Wall t loise Exposure 28.2 25.9 31.1 392 43.6 44.0 : Transmission Loss 6.3 4.0 9.2 17.3 21,7 22.0 : Noise Reduction 22.6 22.6 22.6 22.6 23.6 23.6 : Absorption 14.7 22.5 19.8 15.7 10.3 4.0 : Noise Level 25.5 CNEL WINDOVVS CLOSED EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Project* :A60718 Room Name: Unit 2 Level 1 Living Room Wall 2 of 2 13 Q) CQ CD K) O —h CD Noise Level 125 Hz 250 Hz 500 Hz IKHz 2KHz 4KHz Source 1: Trafflc 49.5 CNEL 32.8 38.3 40.8 44.8 44.8 38.8 : Traftic Spectmm Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 49.5 CNEL 32.8 38.3 40.8 44.8 44.8 38.8 : Effective Noise Spectaim Assemblv Tvpe Open Width Heiqht Qty Total Area 125 Hz 250 Hz 600 Hz IKHz 2KHz 4KHz STC 45 Typical Wall Construction N 14.6 9 1 131.4 33 40 45 45 43 51 <N/A> Y 0 0 1 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Overall Area: 131.4 ft' 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz 32.8 38.3 40.8 44.8 44.8 38.8 : Exterior Wall Noise Exposure 33.0 40.0 45.0 45.0 43.0 51.0 : Transmission Loss 11.8 18.8 23.8 23.8 21.8 29.8 : Noise Reduction 22.6 22.6 22.6 22.6 23.6 23.6 : Absorption 0.0 0.0 0.0 0.0 0.0 0.0 : Noise Level 7.8 CNEL WINDOWS OPEN 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz 32.8 38.3 40.8 44.8 44.8 38.8 : Exterior Wall tloise Exposure 33.0 40.0 45.0 45.0 43.0 51.0 : Transmission Loss 11.8 18.8 23.8 23.8 21 8 29.8 : Noise Reduction . V 22.6 22.6 22.6 22.6 23.6 23.6 : Absorption 0.0 0.0 0.0 0.0 0.0 0.0 : Noise Level 7.8 CNEL WINDOWS CLOSED EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Project #:A60718 Room Name: Unit 4 Level 1 Living Room Wall 1 of 2 Room Type: Moderate 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz Reverberation Time (sec): 1.2 1.2 1.2 1.2 1.0 1.0 : Moderately Reflective Room Room Absorption (Sabins): 280 280 280 280 350 350 TJ Q} (Ct 0 CO O -+i CD Noise Level 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Source 1: Traffic 60.3 CNEL 43.6 49.1 51.6 55.6 55.6 49.6 ; Traffic Spectrum Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 60.3 CNEL 43.6 49.1 51.6 55.6 55.6 49.6 : Effective Noisa Spectrum Assemblv Tvpe Open Width Heiqht Qtv Total Area 125 Hz 250 Hz 500 Hz IKHz 2KHz 4KHz STC 45 Typical Wall Construction N 26.55 9 1 196.6 33 40 45 45 43 51 STC 31 1/8"-3/8"-1/8" Y 8 5.3 1 42.4 24 20 26 35 46 39 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Room Depth: 29.3 ft Overall Area: 238.95 ft' Volume: 7001 ft' Number of Impacted Walls: 2 Windows Open 125 Hz 250 Hz SOO Hz 1KHz 2KHz 4KHz Interior Noise Level: 35.4 CNEL 43.6 49.1 51.6 55.6 55.6 49.6 : Exterior Wall Noise Exposure 10.5 10.5 10.5 10.5 10.5 10.5 : Transmission Loss Windows Closed 0.0 0.0 0.0 0.0 0.0 0.0 : Noise Reduction Interior Noise Level: 23.9 CNEL 24.5 24.5 24.5 24.5 25.4 25.4 ; Absorption 19.1 24.6 27.1 31.1 30.2 24.2 ; Noise Level 35.4 CNEL WINDOWS OPEN 125 Hz 250 Hz SOO Hz 1KHz 2KHz 4KHz 43.6 49.1 51.6 55.6 55.6 49.6 : Exterior Wall Noise Exposure 29.4 27.7 32.9 40.5 43.4 45.4 : Transmission Loss 5.6 3.9 9.1 16.7 19.6 21.6 : Noise Reduction 24.5 24.5 24.5 24.5 25.4 25.4 : Absorption 13.5 20.7 18.0 14.4 10.5 2.6 : Noise Level 23.9 CNEL WINDOWS CLOSED EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Project #:A60718 Room Name: Unit 4 Level 1 Living Room Wal! 2 of 2 "0 Q) CQ 0 O —h CO Noise Level 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Source 1: Traffic 52.0 CNEL 35.3 40.8 43.3 47.3 47.3 41.3 : Trafflc Spectrum Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: S2.0 CNEL 35.3 40.8 43.3 47.3 47.3 41.3 ; Effective Noise Spectrum Assemblv Tvpe Open Width Heiqht Qty Total Area 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz STC 45 Typical Wall Construction N 14.6 9 1 131.4 33 40 45 45 43 51 <N/A> Y 0 0 1 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Overall Area: 131.4 ft' 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz 35.3 40.8 43.3 47.3 47.3 41.3 : Exterior Wall Noise Exposure 33.0 40.0 45.0 45.0 43.0 51.0 : Transmission Loss 11.8 18.8 23.8 23.8 21.8 29.8 : Noise Reduction 24.5 24.5 24.5 24.5 25.4 25.4 : Absorption 0.0 0.0 0.0 0.0 0.1 0.0 : Noise Level 7.8 CNEL WINDOWS OPEN 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz 35.3 40.8 43.3 47.3 47.3 41.3 : Exterior Wall Noise Exposure 33.0 40.0 45.0 45.0 43.0 51.0 : Transmission Loss 11.8 18.8 23.8 23.8 21.8 29.8 : Noise Reduction 24.5 24.5 24.5 24.5 25.4 25.4 : Absorption 0.0 0.0 0.0 0.0 0.1 0.0 : Noise Level 7.8 CNEL WINDOWS CLOSED EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS TJ Q> CQ 0 CJl O —h CD Project Name: Laguna Condos Wall 1 of 2 Project* :A60718 Room Name: Unit 1 Level 2 Master Bedroom Room Type: Soft 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Reverberation Time (sec): 0.8 0.8 0.8 0.8 0.7 0.7 : Higtily Absorptive Room Room Absorption (Sabins): 124 124 124 124 155 155 Noise Level 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Source 1: Traffic 62.5 CNEL 45.8 51.3 53.8 57.8 57.8 51.8 : Traffic Spectrum Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 62.5 CNEL 45.8 51.3 53.8 57.8 57.8 51.8 : Effective Noise Spectrum Assemblv Tvoe Open Width Heiqht Qty Total Area 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz STC 45 Typical Wall Construction N 13.3 9 1 93.2 33 40 45 45 43 51 STC 31 1/8"-3/8"-1/8" Y 5 5.3 1 26.5 24 20 26 35 46 39 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Room Depth: 17.3 ft Overall Area: 119.7 ft' Volume: 2071 ft' Number of Impacted Walls: 2 Windows Open 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Interior Noise Level: 41.6 CNEL 45.8 51.3 53.8 57.8 57.8 51.8 : Exterior Wall Noise Exposure 9.5 9.5 9.5 9.6 9.6 9.6 : Transmission Loss Windows Closed 0.0 0.0 0.0 0.0 0.0 0.0 : Noise Reduction Interior Noise Level: 28.0 CNEL 20.9 20.9 20.9 20.9 21.9 21.9 : Absorption 24.9 30.4 32.9 36.9 35.9 29.9 ; Noise Level 41.2 CNEL WINIX)WS OPEN 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz 45.8 51.3 53.8 57.8 57.8 51.8 : Exterior Wall Noise Exposure 28.8 26.8 32.0 39.9 43.5 44.7 : Transmission Loss 8.0 6.0 11.2 19.1 22.7 23.9 : Noise Reduction 20.9 20.9 20.9 20.9 21.9 21.9 ; Absorption 16.8 24.4 21.7 17.8 13.2 6.0 : Noise Level 27.4 CNEL WINDOWS CLOSED EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Project #:A60718 Room Name: Unit 1 Level 2 Master Bedroom Wall 2 of 2 Ti Q) CQ 0 CJ) O —h CD Noise Level 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Source 1: Traffic 53.2 CNEL 36.5 42.0 44.5 48.5 48.5 42.5 : Traffic Spectrum Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 53.2 CNEL 36.5 42.0 44.5 48.5 48.5 42.5 : Effective Noise Spectmm Assemblv Tvoe Open Width Heiqht Qtv Total Area 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz STC 45 Typical Wall Construction N 17.3 9 1 127.1 33 40 45 45 43 51 STC 31 1/8"-3/8"-1/8" Y 2.7 5.3 2 28.6 24 20 26 35 46 39 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Overall Area: 155.7 ft' 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz 36.5 42.0 44.5 48.5 48,5 42.5 : Exterior Wall Noise Exposure 10.3 10.3 10.4 10.4 10,4 10.4 : Transmission Loss 0.0 0.0 0.0 0.0 0,0 0.0 : Noise Reduction 20.9 20.9 20.9 20.9 21,9 21,9 : Absorption 15.6 21.1 23.6 27.6 26.6 20,6 : Noise Level 31.9 CNEL WINDOWS OPEN 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz 36.5 42.0 44.5 48.5 48.5 42.5 : Exterior Wall Noise Exposure 29.3 27.5 32.7 40.4 43.4 45.3 : Transmission Loss 74 5.6 10.8 18.5 21.5 23,4 : Noise Reduction 20.9 20.9 20.9 20.9 21.9 21.9 : Absorption 82 15.4 12.7 9.1 5.1 0.0 : Noise Level 18.6 CNEL WINDOWS CLOSED EXTERIOR to INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Project #:A60718 Room Name: Unit 2 Level 2 Master Bedroom Wall 1 of 1 Room Type: Soft 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Reverberation Time (sec): 0.8 0.8 0.8 0.8 0.7 0.7 -. Highly Absorptive Room Room Absorption (Sabins): 161 161 161 161 201 201 Noise Level 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Source 1: Traffic 62.5 CNEL 45.8 51.3 53.8 57.8 57.8 51.8 : Traffic Spectmm Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0,0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 DO Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 62.5 CNEL 45.8 51.3 53.8 57.8 57.8 51.8 : Effective Noise Spectrum Assemblv Tvpe Open Width Heiqht Qtv Total Area 125 Hz 250 Hz 600 Hz IKHz 2KHz 4KHz STC 45 Typical Wall Construction N 18.6 9 1 140.9 33 40 45 45 43 51 STC 31 1/8"-3/8"-1/8" Y 5 5.3 1 26.5 24 20 26 35 46 39 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 CQ 0 O —h CD Room Depth: 16 Number of Impacted Walls: 1 Overall Area: Volume: Windows Open Interior Noise Level: 40.0 CNEL Windows Closed Interior Noise Level: 26.6 CNEL 167.4 2678 125 Hz 250 Hz 500 Hz IKHz 2KHz 4KHz 45.8 51.3 53.8 57.8 57.8 51,8 : Exterior Wall Noise Exposure 11.0 11.0 11.0 11.0 11.0 11,0 : Transmission Loss 0.0 0,0 0.0 0.0 0.0 0,0 : Noise Reduction 22.1 22.1 22.1 22.1 23.0 23,0 : Absorption 23.7 29.2 31.7 35.7 34,8 28,8 : Noise Level 40.0 CNEL WINDOWS OPEN 125 Hz 250 H^ SOQ Hz IKHz 2KHz 4KHz 45.8 51,3 53.8 57.8 57.8 51.8 : Exterior Wall Noise Exposure 29.7 28.2 33.3 40.8 43.4 45.7 : Transmission Loss 7.4 5.9 11.1 18,6 21.1 23,5 : Noise Reduction 22.1 22.1 22.1 22.1 23,0 23,0 : Absorption 16.3 23.3 20.6 17.2 13,7 5,3 : Noise Level 26.6 CNEL WINCXJWS CLOSED EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Wall 1 of 1 Project #:A60718 Room Name: Unit 4 Level 2 Master Bedroom Room Type: Soft 125 Hz 250 Hz 500 Hz IKHz 2KHz 4KHz Reverberation Time (sec): 0.8 0.8 0.8 0.8 0.7 0.7 : Highly Absorptive Room Room Absorption (Sabins): 125 125 125 125 157 157 Noise Level 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Source 1: Traffic 62.5 CNEL 45.8 51.3 53.8 57.8 57.8 51.8 : Traffic Spectmm Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 62.S CNEL 45.8 51.3 53.8 57.8 57.8 51.8 : Effective Noise Spectmm Assembly Type Open Width Heiqht Qty Total Area 125 Hz 2S0 Hz SOO Hz IKHz 2KHz 4KHz STC 45 Typical Wall Construction N 14.6 9 1 104.9 33 40 45 45 43 51 STC 31 1/8"-3/8"-1/8" Y 5 5.3 1 26.5 24 20 26 35 46 39 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Room Depth: 15.9 ft Overall Area: 131.4 ft' Volume: 2089 ft' Number of Impacted Walls: 1 Windows Open 125 Hz 250 Hz 500 Hz IKHz 2KHz 4KHz Interior Noise Level: 41.1 CNEL 45.8 51.3 53.8 57.8 57.8 51,8 : Exterior Wall Noise Exposure 9.9 9.9 10.0 10.0 10.0 10,0 : Transmission Loss Windows Closed 0.0 0.0 0.0 0.0 0.0 0,0 : Noise Reduction Interior Noise Level: 27.4 CNEL 21.0 21.0 21.0 21.0 22.0 22,0 : Absorption 24.8 30.3 32,8 36.8 35,9 29,9 : Noise Level 41.1 CNEL WINDOWS OPEN 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz 45.8 51.3 53,8 57.8 57.8 51 8 : Exterior Wall Noise Exposure 29.1 27.2 32,4 40.1 43.5 45.0 : Transmission Loss 7.9 6.0 11.2 19.0 22.3 23.8 : Noise Reduction 21 0 21.0 21,0 21.0 22.0 22,0 : Absorption 16.9 24.3 21.7 179 13,6 6.1 : Noise Level 27.4 CNEL WINDOWS CLOSED CQ 0 00 O —h CD EXTERIOR TO INTERIOR NOISE REDUCTION ANALYSIS Project Name: Laguna Condos Project* :A60718 Wall 1 of 1 Tl Q) CQ 0 CD O —h CD Unit 3 Level 3 Bonus Room Room Type: Soft 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Reverberation Time (sec): 0.8 0.8 0.8 0.8 0.7 0.7 : Highly Absorptive Room Room Absorption (Sabins): 495 495 495 495 619 619 Noise Level 125 Hz 250 Hz 500 Hz 1KHz 2KHz 4KHz Source 1: Traffic 62.3 CNEL 45.6 51.1 53.6 57.6 57.6 51.6 : Traffic Spectmm Source 2: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 3: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Source 4: <N/A> 0.0 CNEL 0.0 0.0 0.0 0.0 0.0 0.0 Overall: 62.3 CNEL 45.6 51.1 53.6 57.6 57.6 51.6 : Effective Noise Spectmm Assembly Tvoe Open Width Heiqht Qty Total Area 125 Hz 2S0 Hz 500 Hz 1KHz 2KHz 4KHz STC 45 Typical Wall Construction N 49.3 9 1 278.4 33 40 45 45 43 51 STC 31 1/8"-3/8"-1/8" Y 6.7 5.3 2 71.0 24 20 26 35 46 39 STC 31 1/8"-3/8"-1/8" Y 8 4 1 32.0 24 20 26 35 46 39 STC 31 1/8"-3/8"-1/8" Y 9.3 6.7 1 62.3 24 20 26 35 46 39 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 <N/A> N 0 0 0 0.0 0 0 0 0 0 0 Room Depth: 18.6 ft Overall Area: 443.7 ft' Volume: 8253 ft' Number of Impacted Walls: 1 Windows Open 125 Hz 250 Hz SOO Hz IKHz 2KHz 4KHz Interior Noise Level: 35.0 CNEL 45.6 51.1 53,6 57.6 57.6 51.6 : Exterior Wall Noise Exposure 7.3 7.3 7.3 7.3 7.3 73 : Transmission Loss Windows Closed 0.0 0.0 0.0 0.0 0.0 0.0 : Noise Reduction Interior Noise Level: 28.0 CNEL 26,9 26.9 269 26.9 279 27,9 : Absorption 18.7 24.2 26.7 30.7 29.7 23.7 : Noise Level 35.0 CNEL WINDOWS OPEN 125 Hz 250 Hz SOO Hz 1KHz 2KHz 4KHz 45.6 51.1 53.6 57.6 57.6 51,6 : Exterior Wall Noise Exposure 27.3 24.6 29.8 38.2 43.9 42,8 : Transmission Loss 0,8 0.0 3.3 11.7 17.4 16,4 : Noise Reduction 26.9 26.9 26.9 26.9 27.9 27,9 : Absorption 17.8 242 23.3 19.0 12.3 7,3 : Noise Level 28.0 CNEL WINDOWS CLOSED APPENDIX 0 Sound Insulation Prediction Results I I i I I Sound Insulation Prediction (v6.0) Progrann copyright Marshall Day Acoustics 2004 Margin of error is generally within +/- 3STC JobName:A60718N1 Notes: Job No.:Laguna Date: 28 Jul 06 File name:insul 1 X 0.9 in Fibre Cement 1 X 0.5 in Plywood Page No: lnitials:KF 1 X 0.6 in Type X Gypsum Board 5.5 in STC 45 C 0 ctr 0 Surf, mass 7.1 Ib/ft2 Surf, mass 1.5 Ib/ft2 Crit freq 1350 Hz Crit. freq 1828 Hz damping 0.01 3.5 in Studs (g 16 in Surf, mass 2.3 Ib/ft2 fo =68 Hz fnfltt-T Frequency (Hz) TL(dB) TL(dB) 50 22 63 20 22 80 25 100 31 125 34 33 160 37 200 39 250 41 40 315 42 400 44 500 45 45 630 46 800 48 1000 47 45 1250 43 1600 41 2000 44 43 2500 46 3150 49 4000 52 51 5000 55 Crit. freq 2502 Hz damping 0.01 Tnfltrflberglass (0.6 Ib/ftS) thickness 3.5 in 250 500 1000 frequency (Hz) Sound Reduction Index(dB) STC STC 31, PTAC09-AB Ventilation Octave Band Conversion Table 1/3 OB 100 125 160 200 250 315 400 500 630 800 Base Lp 100 100 100 100 100 100 100 100 100 100 Given TL 2a 23 23 20 23 19 23 27 29 32 Result 1/3 OB Lp 74 77 77 80 77 81 77 73 71 68 Full OB TL 23.78975 20.36194 25.59823 125 250 500 1000 2000 4000 Full OB TL 23.79 20.36 25.60 34.46 45.99 38.96 1000 1250 1600 2000 2500 3150 4000 5000 100 100 100 100 100 100 100 100 35 39 44 47 43 41 36 43 65 61 56 53 52 59 64 57 34.4649 45.98529 38.96493 Table 3.1b Glass Sound Transmission Loss Data* Glass Configuration Insulating Bujieinsui 30 10dB@ 400 Hz 32 1 9dB@315Hz| CO 37 10dB@200 Hz CO •«r CD CM CD CM 00 CM CM o CO U-) CO OO CM CO LO • CO Ln CO t~.-co in •q-CO CO un Ln CD Ln CM un CO CO CO CM ir> oo Ln o un CD CO • CO o •q-CD CM CD , CO •q-CO CO 00 CO co tn CO CO CO CO CD o CO CD 'a-un CD CO CD CO o CM o un CO • CO in CO O) CO o un , o CO CM CO CO CO CD CO CJ) CO o un t^ CM O) CM co CO CO CD CO CD CNJ - CM CO CD CO un CO CJ) CO CM CO CO CO un CO CO CO OJ CD Ln CM CO CM o CO CO CO CD CNJ CO CM Ln CM CD CM CO o CO CO CM O CM 00 r~ CO CM CO CO CO CM CO CM CO -' CM 00 CM o CO CM CO CM CM CM in CM CD oo CM CD CM CD CM CD CM o CM CM CM 'a-CM 1/8" -1/4" AS" -1/8" (SEALED) RAL-TL85-212 00 * CO CO < ^ § Q S LU _J f —1 1— = < _1J < CM £5i Q S T- UJ _J • -J 1— = < _j ij. UJ < lo CO hi < CM % q S , UJ _l =^ "T «o <, _j i= LU ^ « CO Ui Q ^ < iii uS < 3 CD « CD <0 —^ < Q CM r y in T < 3 • LU pl tD 1 CO 0) £ < uo!iB4n6!|uo3 SSBIO 3.4 APPENDIX D Recommended Products TECHNICAL DATA ACOUSTICAL SOUND SEALANl Non-Flammable DESCRIPTION Pro-Series® SC-175™ Acoustical Sound Sealant is a one-part, non- flammable, latex base product de- signed specially for the reduction of sound transmission in all types of wall partition systems. Its primary function is to achieve and maintain the specific STC (Sound Transmission Class) value of the system designed. Sealant remains permanently flexible and adheres firmly to wood or metal studs, concrete, gypsum board and most other types of building substrates. Maintains a tough rubber-like seal against air-bome sound, air infiltration and moisture. SC-175™ offers fast, smooth, easy application without difficulty in extrusion. Clean up is also quick and easy with just soap and water. Field tested and field proven, Pro- Series® SC-175™ is recognized across the country by drywall manufac- turers and architects as an effective means of reducing sound transmission. FEATURES UL tested and classified Non-flammable formulation Easy application and easy clean up Will not harden, crack or separate Non-staining and non-migrating High degree of adhesive and cohesive strength USES Pro-Series® SC-175™ was developed primarily for commercial constmction utilizing light weight cavity walls and PHYSICAL PROPERTIES Type Synthetic Latex Rubber Vehicle Water Color White Solids by Weight 75% Flash Point 20G°F. TCC (minimum amount of solvent present) Flammability Non-Flammable Toxicity Toxic only if swallowed. Refer to MSDS. Tooling/Open Time 15 minutes Tack Free Time 30 minutes Cure Time 2-7 days Application temperature 40°F. minimum Service Temperature -5°F. to 170°F. Freeze-Thaw Stability Freeze-thaw stable for at least 3 cycles. Unaffected by freezing after curing. Sag or Slump Nil (ASTM D2202) Shore "A" Hardness 45 +/- 5 (Cured 30 days at room temperature) Elongation 200% AcceleratedWeathering No cracks, no discoloration, no chalking: 1000 hrs. in Xenon Arc Weatherometer Shelf Life 1 year from date of manufacture at 75°F. Clean Up Soap and Water . floor systems. The sealant is used for exposed and unexposed applications at perimeter joints, floor and ceiling runners (either wood or metal), cut- outs in gypsum board, veneer plaster systems and other areas where a sound rated assembly is required. The sealant is also applied or buttered around all electrical boxes and outlets, cold air returns, heating and air conditioning ducts, and other utility equipment penetrating wall surfaces for increased acoustical performance. The product is also excellent for perimeter sealing in residential construction around base and sill plates to help reduce air infiltration and unwanted moisture. SC-175™ is used successfully in office buildings, sound studios, hospitals, hotels, motels, schools, apartment complexes and other types of commercial and residen- tial construction where sound ratings are required. SPECIFICATIONS UL Classified - 48S9 (R9732). Tested in accordance with and conforms to: UL 723: U.B.C. Standard No. 42-1 Class I. ASTM E84: Surface Burning Charac- teristics of Building Materials. ASTM E90-85: Laboratory Measure- ment of Airborne-Sound Transmis- sion Loss of Building Materials. ASTM D217: Testing Standard for Consistency. ASTM C919-79: Standard Practice for Use of Sealants in Acoustical Applications. LIMITATIONS Do not use below freezing tempera- ture. When temperatures are below 40°F, it is recommended that product be kept at a minimum tem- perature of 45°F or higher when using. PACKAGING 29 oz. cartridges - 12/case Item # 17529 1 gallon pail - 4 pail Item # 17591 5 gallon pail -1 pail Item # 17595 STORAGE Keep from freezing. Store in cool, dry place at room temperature, preferably at 75°F. +/- 5° for maximum shelf life and performance. (/) O O (/) cn 31 >9 o cn O m a) '< ro o o o 30 m cn H m o z z o > r- o > > COVERAGE 29 oz. cartridge: 3/8" bead - approx. 40 lin. ft. 1/4" bead - approx. 89 lin. ft. 5 gallon pail: 3/8" bead - approx. 174 !in. ft./gal. 1/4" bead - approx. 392 lin. ft./gal. PERFORMANCE CHARACTERISTICS 1. Underwriters Laboratories Inc. Classified 48S9 (R9732). UL 723: Sealant tested for surface buming characteristics. Applied to Inorganic Reinforced Cement Board* Flame Spread 5 Smoke Developed 5 'Tested as applied in two 1/2 in. beads, 8 in. on center. The sealant covered 5.6 percent of the exposed sample area. 2. ASTM E90-85: STC Value - Effect of sealing the opening on a test wall partition. APPLICATION PROCEDURES 1. All surfaces must be clean, dry and free of dirt, dust, oil, moisture and other foreign substances which could interfere with the bond of the Test partition consisted of metal studs 24" O.C. with double layer gypsum board, Firecode "C" and attached with screws on both sides. Inside of partition was filled with sound insulation. Partition system was erected and shimmed out 4.75 mm (0.1875 in.) at top, bottom and edges. Results: Sound Transmission Class Value. sealant. 2. Cut spout on tube to desired bead size (3/8" round bead recom- mended) and puncture seal inside spout. 3. Sealant should be applied as specified in the sound-rated system being installed (either wood or metal studs). A. Bottom Runners: Apply a continuous 3/8" round bead of sealant at each side of the runners before setting gypsum board. Gypsum board shall be set into sealant to form complete contact with adjacent materials. Repeat procedure for double layer applica- tions. B. Top Runners: Apply sealant at top of gypsum board into the joint to provide full contact between the board and the structure above. C. Cut-Outs and Perimeter Joints: Backs of electrical boxes, pipes, duct systems and other types of utility equipment penetrating wall surfaces shall be buttered with sealant All joints at perimeter edges including abutting surfaces and corner joints fonned by components shall be sealed with sealant. 4. Maximum joint sizes should not exceed 5/8" x 1/2". 5. Clean tools and excess sealant immediately after application with soap and water. 6. If necessary, sealant can be painted as applicable to meet project requirements after 24 hours. CAUTIONS CONTAINS ETHYLENE GLYCOL and MINERAL SPIRITS. Do not take internally. If swallowed may cause abdominal discomfort, dizziness or malaise. Use with adequate ventila- tion. KEEP OUT OF REACH OF CHILDREN. FIRST AID In case of eye contact, flush immedi- ately with plenty of clean water for at least 15 mmutes. Consult a physician. If swallowed, give water and induce vomiting. Call physician. If dizziness occurs, remove to fresh air. For skin contact, wash with soap and water. NOTICE TO PURCHASER OSI Sealants, Inc. warrants the quality of this product when used according to directions. User shall determine suitability of product for use and assumes all risk. THE FOREGOING WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRAN- TIES OF MERCHANTABILITY OR FITNESS FOR ANY PURPOSE NOT EXPRESSLY SET FORTH HEREIN. If not satisfied with the product's perfor- mance when used as directed, return sales receipt and used container to OSI Sealants, Inc., 7405 Production Drive, Mentor, Ohio 44060 for product replacement The seller will not accept liability for more than product replace- ment. 1. Un-sealed partition - Arrows show sound o o STC=15 CO 2. Single bead of sealant used at top and bottom runners only - both sides of partition system. STC=24 FOR COMMERCIAL USE CONTACT OSI SEALANTS TECHNICAL DEPARTMENT OR VISIT OUR WEB SITE AT www.osisealants.com. Z < -I < HI cn a z 3 o cn y STC=45 cn o 6< DC W cn o O cn Metal Stud Partition Door/window frame in a hollow partition 3. Single bead of sealant used at top, bottom and perimeter joints - both sides of system. 4. Double bead of sealant used at top, bottom and all perimeter edges. Both sides of partition system. STC=55 OSI Sealants, Inc. 7405 Production Drive Mentor, OH 44060 U.S.A. Phone: (800) 624-7767 (440) 255-8900 Fax: (440) 974-8358 S011175 APPENDIX E Excerpts of Typical Building Plans, Elevations, and Cross Sections otMumnDM ICS ta am t m nr. SITE PLAN G ARAG E PLAN SCALE, If • I'-O-03 e 4 LAMHA. ORIVE FIRST FLOOR PLAN 02 e LAMHA DRIVE SECOND FLOOR PLAN SCALE, If . V-O- S.460 SO, rr. o 3 a It «, LASUiA CRIVE THIRD FLOOR PLAN SCALE. It" • I'-O-o 03 » t LA40NA DRIVE COMroSmON A5f»HALT SHINSte TTP, ROOF PLAN SCALE, It- • I'-O-03 e 16 ASPHALT NOOPIN» KTAL RALIHS viKTL raw>ore/DooRS STOte VE>«ER nooo POSTS EXPOSED MOOD BEAM LAGUNA DRIVE ELEVATION LAGUNA DRIVE ELEVATION fAMtLED VIEM; SCALE. I»- • I'-O- COMPOSITION ASPHALT ROOPIN» VNn. ISINDOnSATOORS STONE VENEER MADISON STREET ELEVATION SCALE. It- • I'-O- VINTL MINDOnS/DOORS STOW VE^eBR EAST ELEVATION SCALE, %' • r-o- VINTL MNDOm/DOORS - STONE VBCCR SOUTH ELEVATION SCALE, It- • l -o- SITE CROSS SECTION A-A SITE CROSS SECTION B-B SCAtE. It- • I'-O- SITE CROSS SECTION C-C SCALE, It' • I'-O- STORM WATER MANAGEMENT PLAN FOR Rudy Zavalani 4516 Salisbury Drive Carlsbad, CA 92008 760-729-7598 PROJECT: LAGUNA CONDOMINIUMS T.M CT 06-01 - RP 06-01 735 Laguna Drive APN 203-110-42, -43 Carlsbad, CA PREPARED BY: Aquaten^a Engineering Inc. 1843 Campesino Place Oceanside, CA 92054 tele: 760-439-2802 fax: 760-439-2866 June 2, 2006 Revised August 23, 2006 Revised October 17, 2006 storm Water Standards 4/03/03 Vl. RESOURCE€i & RlPlRiNCES APPENDIX A STORM WATER REQUIREMENTS APPLICABILITY CHECKLIST Complete Sections 1 and 2 of the foilowing checklist to determine yc^ur projecfs permanent and (xinstruction storm water best management practices requirements. This form must be completed and submitted with your pennit application. Section 1. Pennanent Storm Water BMP Requirements: If any answers to Part A are answered "Yes," your picject is subject to the Tridrity Project Pemianent Stonn Water BMP Requirements," and "Standard Permanent Storm Water BMP Requirements" in Section III, "Permanent Stonn Water BtVIP Selection Procedure" in the Storm Water Standards manual. If aii answers to Part A are "No," and §Qy answers to Part B are "Yes," y<xir project Is only subject to the "Standard Permanent Storm Water BMP Requiremerts". If every question in Pail A and B Is answered "No," your project is exempt from permanent storm water rec uirements. Part A: Detennine Priority Project Permanent Storm Water BMP Recitiirements. Does the projeci meet the definitiofi of one or more of the priority preset categories?* Yes No 1. Detached res>Klen!lai development of 10 or more units X 2. Atiached res denfial development of 10 or more units K 3. Commerctetf development greater tlwi 100.000^uare feet X .4. Automotive repair shop 5. Restaurant ^ y 6. Steep hWsidi^ development greater than 5^000 square feet X 7. Proiect discttarging to receiving waters wMi Environmentally Sensifive Ar^ 8. Parking lots greater than or equal to 5.000 fr' or with at least 15 parkbfig spaces, aod potentia ly exposed to urban runoff 9. Streets, roarls. highways, ^id freeways whteh woukl create a new paved surface tfiat Is 5.000 S(|uare feet or greater * Refer to the definitions sectkm in the Sfomi We^er Standards for expanded d^nitionii qf the priority proiect categorltis. Umited Exdusk^n-. Trenching and resurfacfrig work associated with utility pn>|ects are not considered prUxify proiects. Parkkig tots, bulldkigs and other structtflres associated with utffity prq|^:ts are priority projects if one c r more of the criteria In Part A is met If all answers to Pstft A are "No", continue to Parte. 30 Storm Water Standards 4/03/03 Part B: Determine Standard Permanent Storm Water Requirements Does the project propose: Yes No 1. New Impervious arr as, such as rooftops, roads, parking lots, driveways, paths and sidewalks? X 2. New pervious feuids cape areas and Irr^tton systems? 3. Permanent structures within 100 feet ofany natural waterbody? X 4. Trash storage areas? y 5. Liquid or solk] m^f.'rial kiadufig arid uriloading £ffeas? 6. Vehk:le or equipment fueling, washkig. or maffitenance areas? X 7. Require a Gerieral NPDES Permit for Storm W£rter Discharges Associated with Industrial Activ ities (Except construction)?* X 8. Commercial or ind jstrial waste handling or storage, exduding typical office or 1 household wante? 1 A 9. Any £^Hig or grc und disturtisyfice during construction? ?^ 10. Any new storm drsiins. or alleration to existing storm drains? *To find out if your proi(3Ct is requred to obtain an indlvkiual General NPDES Pennit for Storrr Water Discharges Associated with Industrial Activities, visit the State Water Resources Control Board web site at, www.swrcb.ca.gov/€ lormwtr/industr»l.html Section 2. Consti uction Storm Water BMP Requirements: If the answer to Cjuestion 1 of Part C Is answered "Yes." your project is subject to Section IV. "Con.struction Storm Water BMP Perfbrmance Standards," and must prepare a Storm \A ater Pollution Preventton Plan (SWPPP). If the answer to question 1 Is "No," tHjt the answer to any of the remaining questtons is "Yes," your project is subject to Sectton IV, "Constructfon Storm Water BMP Performance Standards," and must p repare a W ater P Dilution C ontrol P lan (WPCP). Ife very q uestion ii P art C is answered "No." your project is ejcempt from any constructton storm water BMP requirements. If £ ny of the answers to the questtons In Part C are "Yes," complete the construction site prioritization in Part D, below. Part C: Determine Construction Phase Storm Water Requirements. Would the project meet any of these criteria durii^ construction? Yes No 1. Is the project suliject to Califomia's statewide General NPDES Penmit for Storm Water Dlschanses Associated With Constructton Activities? 2. Does the prplec^ propose gradkig or sofl disturtiance? 3. Woukl storm wster or urtian runoff have the potently to contact any portton of the constructlori area, including washing and stagkig areas? X 4. Would the profect use any constructton materials that could negativety affect water quality if discharged from the site (such as, paints, solvents, concrete, and stucco)? 31 STORM WATER MANAGEMENT PLAN FOR Rudy Zavalani 4516 Salisbury Drive Carlsbad, CA 92008 760-729-7598 PROJECT: LAGUNA CONDOMINIUMS T.M CT 06-01 - RP 06-01 735 Laguna Drive APN 203-110-42, -43 Carlsbad, CA PREPARED BY: Aquaterra Engineering Inc. 1843 Campesino Place Oceanside, CA 92054 tele: 760-439-2802 fax: 760-439-2866 June 2, 2006 Revised August 23, 2006 Revised October 17, 2006 Prepared lUnder the supervision of Krifetin Lipska Borer, PE C57860 Exp. 6/30/08 LAGUNA CONDOS Storm Water Management Plan TABLE OF CONTENTS 1. DESCRIPTION OF PROPOSED PROJECT Vicinity Map, USGS Map, Site Plan 2. APPLICABLE l-AWS. REGUI-ATIONS, POLICIES AND REQUIREMENTS 3. POTENTIAL EFFECTS TO WATER QUALITY ENVIRONMENTS 4. POLLUTANTS OF CONCERN 5. MITIGATION MEASURES TO PROTECT WATER QUALITY BEST MANAGEMENT PRACTICES (BMPs) Priority Project Category BMPs 5.1 Construction BMPs 5.2 Post-Construction BMPs 5.2.1 Site Design BMPs 5.2.2 Source Control BMPs 5.2.3 Treatment Control BMPs 6. OPERATION & MAINTENANCE OF BMPs Cost Analysis of BMP Implementation and Maintenance 7. SUMMARY/CONCLUSIONS ATTACHMENT LISTING A) Hydrology Report B) Specification for Grass Lined Drainage Swales C) "NPDES Permit "Lite" for Non-technical Readers" D) "General Categories for Water Pollution" E) "Non-point Source Pollution: The Nation's Largest Water Quality Problem" F) Resources and References G) Employer Training Log H) Best Management Practices, CASQA Storm Water Quality Handbook, 2003 SD-10 "Site Design & Landscape Planning" SD-12 "Efficient Irrigation" SD-13 "Storm Drain Signage" SD-32 "Trash Storage Areas" REFERENCES 1) Stormwater Standards Manual, Ordinance No. 9426 (M.S.) 2) Hydrology Manual, County of San Dlego 1. DESCRIPTION OF PROPOSED PROJECT Project Location: The site, totally 0.24 acres, is situated at the northeast corner of Laguna Drive and Madison Street. A Vicinity Map and a USGS Map is attached for review on the following pages. Proiect Description: The 0.24 acre (10454 S.F.) project site is occupied by one single family dwelling . The surrounding adjacent lands have been developed with single family structures on standard sized residential lots. The proposed project is to develop the site for 5 residential condominium attached units, and the development of three new building pads. A paved access driveway from Madison Street, a public street, is also proposed. The plan indicates there will be grading quantities of 2830 CY. of excavation, with 5 CY. of compacted fill, for an overall Export of 2825 CY. The majority of the excavation will be related to the construction ofthe underground parking structure. The building site has the following coverages: Existing Impervious Surfaces Including Building footprint and parking areas 3556 s.f. (0.082 ac.) 34% Proposed Impervious Surfaces Including Building footprint and parking areas 8715 s.f. (0.200 ac.) 83% A Hydrology study prepared by Aquaterra Engineering is provided in Attachment "A" which gives the calculation of this quantity. Phvsical Features: The existing site topography slopes in the northwesteriy direction with mild slope gradients. The development will not alter the existing drainage patterns from the existing pre-development condition. All drainage flows shall be collected and transported to offsite public drainage facilities by surface swales. Underground drainage structures or pipes are not proposed. Surroundinq Land Use: The adjacent properties are developed residential Proposed Proiect Land Use: The subject application will use the existing residential designation. No land use or zoning change is required for approval ofthis project. Hydrologic Unit: This project is located within Carisbad Watershed and the Hydrologic Area numbered 904.4. The Carisbad Hydrologic unit is approximately 210 square miles. This project is a minute portion ofthis hydrologic area at less than 0.0000003% of the total area. A Hydrology Report is included as Attachment "A". VICINITY MAP VICINITY MAR ND SCALE USGS MAP rHi. CARLSBADK. >f 2. APPLICABLE LAWS . REGULATIONS, POLICIES AND REQUIREMENTS The Stormwater Management Plan (SWMP) is required under the County of San Diego Watershed Protection, Stormwater Management, and Discharge Control Ordinance (section 67.817, and the City of Carisbad's SUSMP. The purpose ofthis SWMP is to address the water quality impacts from the proposed improvements on the Laguna Condominiums project. Best Management Practices (BMPs) will be utilized to provide a long-term solution to water quality. The SWMP is also intended to ensure the effectiveness of the BMPs through proper maintenance that is based on long-term fiscal planning. The SWMP is subject to revisions as needed by the engineer. BENEFICIAL USES The beneficial uses for the hydrologic unit are included in Tables 2.1 and 2.2. These tables have been extracted from the Water Quality Control Plan for the San Diego Basin. MUN - Municipal and Domestic Supply: Includes uses of water for community , military, or individual water supply systems including, but not limited to, drinking water supply. AGR - Agricultural Supply: Includes uses of water for farming, horticulture, or ranching including but not limited to, irrigation, stock, watering, or support of vegetation for range grazing. IND - Industrial Services Supply: Includes uses of water for industrial activities that do not depend primarily on water quality including, but not limited to, mining, cooling water supply, hydraulic conveyance, gravel washing, fire protection, or oil-well re- pressurization. RECl - Contact Recreation: Includes uses of water for recreational activities involving body contact with water, where ingestion of water is reasonably possible. These uses include, but are not limited to, swimming, wading, water skiing, skin and SCUBA diving, surfing, white water activities, fishing, or us of natural hot springs. REC2 - Non-Contact Recreation: Includes the uses of water for recreational involving proximity to water, but not normally involving body contact with water, where ingestion of water is reasonably possible. These uses include, but are not limited to picnicking, sunbathing, hiking, camping, boating, tide pool and marine life study, hunting, sightseeing, or aesthetic enjoyment in conjunction with the above activities. WARM - Warm Freshwater Habitat: Includes uses of water that support warm water ecosystems including, but not limited to, preservation or enhancement or aquatic habitats, vegetation, fish or wildlife, including invertebrates. COLD - Cold Freshwater Habitat: Includes uses of water that support cold water ecosystems including, but not limited to, preservation or enhancement of aquatic habitats, vegetation, fish, or wildlife, including invertebrates. WILD - Wildlife Habitat: Includes uses of water that support terrestrial ecosystems including, but not limited to, preservation and enhancement or terrestrial habitats, vegetation, wildlife, (e.g. mammals, birds, reptiles, amphibians, invertebrates), or wildlife water and food sources. RARE - Rare, Threatened or Endangered Species: Habitats necessary, at least in part, for the sun/ival and successful maintenance of plant and animal species established under state or federal law as rare, threatened, or endangered. INLAND SURFACES WATERS Inland Surfaces waters have the following beneficial uses as shown on Table 2.1 Table 2.1 Beneficial uses for Inland Surfaces Waters Hydrologic Unit Number MUN AGR IND Hydro RECl REC2 WARM RARE WILD 904.4 X x X x X X X X X GROUNDWATER Groundwater beneficial uses includes agricultural and potentially municipal and industriai, none or these beneficial uses will be impaired or diminish due to the construction and operation of this project. Table 2.2 Beneficial Uses for Groundwater Hydrologic Unit Number MUN AGR IND 904.4 X X X * Excepted from Municipal X Existing Beneficial Use 0 Potential Beneficial Use 3. CHARACTERIZATION OF PROJECT RUNOFF According to the California 2002 303d list published by the San Diego Regional Water Quality Control Board; the Pacific Ocean at the mouth ofthe Buena Vista Lagoon is an impaired water body within the Carisbad Watershed. The project location and watersheds have been compared to the current published 303d iist of impaired water bodies and the nearest impaired water bodies are the Pacific Ocean at the Buena Vista Lagoon, impaired by bacteria indicators generated by non-point/point source pollution. Education materials including in this SWMP in the Attachments will be distributed by the project owners and wili limit pollution by limiting exposure of these pollutants to the storm water runoff. EXPECTED DISCHARGES There are no sampling data available for the existing site condition. In addition, the project is not expected to generate significant amounts of non-visible pollutants. However, the foilowing constituents are commonly found on similar developments and could affect water quality: Sediment discharge due to construction activities and post-construction areas left bare. Nutrients from fertilizers Hydrocarbons from paved areas. Pesticides from landscaping use. Table 3.1 Pre and Post Development Runoff Area Existing Qioo (cfs) Qioo (cfs) Qioo (cfs) Basin (acres) Existing Proposed Change X 0.24 0.67 A 0.24 1.03 0.36 Because this is a redevelopment project the calculated difference between the pre & post-development Qioo is 0.36 cfs. The Calculated difference between the pre & post- development Qio is negligible.The increase in Q, although very small, will be mitigated by the construction of a Grass lined drainage Swale (Biofiler) All roof drains will be areas that will be filtered through landscaped areas. See Section 5.2.3. for description and sizing of these Treatment Control BMPs 4. POLLUTANTS/CONSTITUENTS OF CONCERN The project locations and watersheds have been compared to the current published 303d list of impaired water bodies. The Agua Hedionda, Buena Vista and San Elijo Lagoons are experiencing impairments to beneficial uses due to excessive coliform bacteria, sediment as well as trace metal and toxics from upstream sources. These coastal lagoons represent critical regional resources that provide freshwater and estuarine habitats for numerous plant and animal species. None of these lagoons are downstream of this project and therefore will not contribute to the pollutants of concern. The Buena Vista Lagoon and Buena Vista creek are located within 0.25 mile ofthe property and are impaired by coliform bacteria. Nutrients, and Sediment. The primary constituents of concern are then coliform, nutrients, and sediment. The sources and activities contributing to the impairments in this area are Urban runoff, agricultural runoff, sewage spills, and livestock / domestic animals. Coliform bacteria is generated by fecal material from human and animal waste released in sewage spills. This project is not likely to produce this constituent of concern. The Secondary Pollutants of concern are trace minerals and toxins. Possible pollutants found on this site may include: a) Wash down water from Asphalt b) Hydrocarbons and Heavy Metals from pavement surfaces c) Sediment from Construction Activities Project Category Sed Nutrients Hvy Met Org Comp Trash &Deb Oxy Dem Oil& Grease Parking Areas X P X X X P X X = anticipated P = Potential (1) A potential pollutant if landscaping exists on-site (2) A potential pollutant ifthe project includes landscaping. The following section will outline the Best Management Practices that will provide for the protection of the water quality, with respect to the Possible pollutants of concern that are generated by this project. 5. MITIGATION MEASURES TO PROTECT WATER QUALITY BEST MANAGEMENT PRACTICES (BMP) According to the Model Standard Urban Stormwater Mitigation Plan for San Diego County. Port of San Diego, and Cities in San Diego Countv. (SUSMP). approved by the San Diego Countv Regional Water Qualitv Control Board June 12. 2002. Residential projects with parking areas having more than 5000 s.f. of impervious surface are considered "priority projects" and therefore have certain storm water mitigation design requirements. The following a list of those requirements: Parking areas shall include the following: a) Where landscaping is proposed in parking areas, incorporate landscape areas into drainage design. b) Overflow parking (parking stalls provided in excess of the City of Carisbad's parking requirements, may be constructed with permeable paving. c) Other design concepts that comparable and equally effective. All of the proposed parking areas in this project are covered and therefore are not subject to runoff. So the actual pollutants will be lessened. Best Management Practices (BMPs) are intended to provide measures which minimize or eliminate the introduction of pollutants into the storm water system. All constituents of concern will be removed from the storm water runoff as to minimize impact of development on impaired water bodies. 5.1 Construction BMPs To address water quality for the project, BMPs will be implemented during construction and post-construction. The construction activities are dually regulated by the California State wide General Construction Permit and San Diego County Ordinances. A grading and erosion control plan will be processed through the City of Carisbad. Erosion Control must be incorporated per City Standards. Gravel Bag Barrier Material Spill Prevention and Controi Spill Prevention and Control Concrete Waste Management Water Conservation Practices Gravel Bag Berm Material Delivery and Storage Stockpile Management Solid Waste Management Stabilized Construction Entrance/Exit Vehicle and Equipment Maintenance Dust Controls Permanent re-vegetation of all disturiied areas 10 Scheduling to reduce Erosion of Wind, Rain Runoff 5.2 Post-Construction BMPs 5.2.1. Site Design BMPs This project was designed to minimize, to the maximum extent practical, the introduction of pollutants and conditions of concern that may result in significant impacts to the storm water conveyance system. Site Design BMPs are designed to maintain pre- development runoff characteristics. The following concepts were applied to this project in the following manner: 1) Minimize impervious footprint 1) Increase building density 2) Construct Walkways, trails, patios, overflow parking lots and alleys, and other low-traffic areas with permeable surfaces, such as pervious concrete, porous asphalt, unit pavers, and granular materials; 3) construct streets, sidewalks, and parking aisles to the minimum widths necessary, provided that public safety and walkable environment for pedestrians are not compromised; and 4) minimize the use of impervious surfaces, such as decorative concrete, in the landscape design. The project has been designed with maximize densitv on the 0.24 acre site. The buildinq has been designed to minimize the footprint bv designing it with multi-stories. Parking is underqround which limits exposure of runoff to pollutants caused by parking. 2) Conserve natural area. 1) Concentrate or cluster development on the least environmentally sensitive portions of a site while leaving the remaining land in a natural undisturbed condition. 2) Use natural drainage systems to the maximum extent practicable. This project is a re-development project so there is no "natural area" on the site. 3) Minimize directly connected Impervious Areas (DCIAs). Landscape area can be used to provide infiltration to landscaped areas and therefore minimizing DCIAs. 4) Maximize canopy interception and water conservation. 1) Preserve existing native trees and shrubs; and 2) Plant additional native or drought tolerant trees and large shrubs in place on non-drought tolerant exotics. 11 Landscape plan calls for native tree and shrubs. 5) Convey runoff safely from the tops of slopes. There are no significant slopes on this proiect. 6) Vegetate slopes with native or drought tolerant vegetation. There are no significant slopes on this proiect. 7) Stabilize permanent channel crossings. Not-applicable - No channel crossings. 8) Install energy dissipaters, such as rip-rap, at the outlets of new storm drains, culverts, conduits, or channels that enter unlined channels in accordance with applicable specifications to minimize impacts to receiving waters. This project will drain eventually drain to paved surfaces. The increase in Q10 for this proiect is verv small and will not need energy dissipaters. Source Control (Non-structural) BMPs include education, clean-up and facility maintenance to prevent pollutants from entering the storm water system. Treatment Control BMPs are facilities designed to remove pollutants of concern from the storm water conveyance system to the maximum extent practicable through the incorporation of treatment control BMPs. The following is a speciflc list of suggested Source Control BMP's for this project and discussion of their effectiveness. 5.2.2 Source Control (Non-Structural) BMPs (Nl) Owner Education -The Project Owner will educate employees and tenants of general good housekeeping practices that contribute to the protection of storm water quality by providing information on Best Management Practices. (See All Attachments) (N2) Activity Restrictions - All activities will comply with Order 2001-01. Waste Discharge Reguirements of the Urban Runoff From the Municipal Separate Storm Sewer Svstems (MS-4) Regulations, and the City of Carisbad Municipal Code and Zoning Ordinance. Specific restrictions of the site will include, but are not limited to, the following: • No Hosing of Paved Area - Parking surfaces and driveways will not be cleaned by "hosing down", but will instead be swept clean or vacuumed, with collected waste disposed of in a covered container. Oil stains will not 12 be cleaned via an acid wash ofthe driveway. Instead, oil stains and leaks will cleaned using rags or absorbents, then swept using granular solvent material, and flnally mopped. Mop water shall be disposed of into a sanitary sewer facility. Trash - No rubbish, trash, garbage or other waste material shall be kept on- site or on any public street abutting the properties, except in sanitary container located in appropriate areas (trash containers). • Drainage - There shall be no interference with or alteration of the established drainage pattern on the site unless an adequate alternative provision is made for proper drainage with the prior written approval of the City. Outside Storage - Storage of materials will not be allowed outside the main buildings unless authorized by the governing agencies. A revised SWMP will be issued in this event detailing the BMPs associated with outdoor storage. Pet Waste - Pet waste will be disposed of in trash containers or sewers and not be allowed in public gutters. (N3) BMP Maintenance - Owner shall assign a person who will be responsible for implementation of each non-structural BMP and scheduled cleaning of all structural BMP facilities. (See Section 5.) (N4) Local Industrial Permit Compliance - Owner will be responsible for relaying requirements to any future owner. (N5) Spill Contingency Plan - Owner shall provide and implement a spill contingency plan if Hazardous Wastes are known to be stored on property. (N6) Common Area Litter Control - Owner shall implement a trash management and litter control program for the reduction of off site migration of trash. Owners and Tenants will be responsible for having the site inspected twice a week and cleaned as necessary. (N7) Owner Training - Owners will periodically provide information from this document and available from other Agencies to tenants and employees of good housekeeping practices that contribute to the protection of storm water quality. This education will address, but is not limited to the use and storage of chemicals, pesticides, BMPs regarding site cleanup, litter control and trash collection. (See all Attachments.) (N9) Common Area Efficient Irrigation - Irrigation shall be implemented as indicated on the City approved Landscape Plans and be consistent with City water 13 conservation resolution. This shall include programmable irrigation and run-off minimizing landscaping. (N10) Common Area Runoff-Minimizing Landscape Design - Plants with similar water requirements shall be grouped in order to minimize the amount of excess water flow. See NS-1 & NS-7 (attached). (N11) Catch Basin Stenciling - Phrase "No Dumping - Drains to Ocean" to be stenciled on catch basin and curb iniet to alert the public to the destination of pollutants discharged into storm water. 5.2.3. Treatment Control (Structural) BMPs There will be one Treatment Control BMP used for this project. Roof Surface from Basin D Volume based and Flow based BMPs will be designed to mitigate (inflltrate, filter or treat) the volume of runoff produced from a 24-hour 85* percentile storm event, as determined form the local historical rainfall record and shown on the official County Isopluvial Map for the 85* percenfile storm. The Volume is calculated as: Basin A Flow based calculation: Q = C IA Q = allowable Q I = 0.2 in/hr A = Impervious Surface = 0.2 ac. C = coefficient of runoff =1.0 Q = C I A = 1.0(.2) (.2) = 0.04 cfs. The allowable Q for the channel is 1.12 cfs The site will have a Grass lined swale located at the southeasteriy section of the property. This swale will be 3' wide X 150' long X .33' deep @ 2% providing an allowable Q of 1.12 cfs. See Attachment "B" for specifications of this Treatment BMPs. Further invesfigation into this design will be done as the drainage and grading are in the final phase. (SI) Grass Lined Swale - Runoff from the impervious portion ofthe driveway and a portion of the roof will be directed to a the infiltrafive channel before discharging 14 to the public street. This channel will be maintained by the property owner. See "Attachment B" for design criteria and Site Plan for locations. Grass Lined channels that receive directed flow and convey storm water. Pollutants are removed through the grass, sedimentafion, adsorption to soil particles, and infiltrafion through soil. This infiltrafive channel is mainly effecfive at removing debris and solid particles, although some dissolved constituents are removed by adsorption onto the soil. Efficiency: Likely to have a significant impact on Sediment, debris and Non-visible pollutants, such as fertilizer. 6. MAINTENANCE STORMWATER MANAGEMENT PROGRAM Pollution Prevenfion BMPs (MEP based): The owner of the hotel will be responsible for developing a plan to educate new empioyees regarding limiting exposure of pollutants to storm water. This pian will include education regarding proper use and disposal of pollutants and a plan for Spill Cleanup procedures and may include all Attachments included in this SWMP. Operation & Maintenance Program The operational and maintenance needs of a Grass Lined Swale are: Vegetation management to maintain adequate hydraulic functioning and to limit habitat for disease-carrying animals. Animal and vector control. Periodic sediment removal to optimize performance. Trash, debris, grass trimmings, tree pruning, and leaf collection and removal to prevent obstruction of a Swale and monitoring equipment. Removal of standing water, which may contribute to tiie development of aquatic plant communities or mosquito breeding areas. Removal of graffifi. Preventive maintenance on sampling, flow measurement, and associated BMP equipment and structures. Erosion and structural maintenance to prevent the loss of soil and maintain the performance of the Swale. Inspection Frequency The facility will be inspected and inspection visits will be completely documented: Once a month at a minimum. After every large storm (after every storm monitored or those storms with more than 0.50 inch of precipitation.) 15 On a weekly basis during extended periods of wet weather. Aesthetic and Functional Maintenance Aesthetic maintenance is important for public acceptance of stormwater facilities. Functional maintenance is important for performance and safety reasons. Both forms of maintenance will be combined into an overall Stormwater Management System Maintenance. Aesthetic Maintenance The following activities will be included in the aesthetic maintenance program: Graffiti Removal. Graffiti will be removed in a timely manner to improve the appearance of the Swale and to discourage additionai graffiti or other acts of vandalism. Grass Trimming. Trimming of grass will be done on the Swale, around fences, at the inlet and outiet structures, and sampling structures. Weed Control. Weeds will be removed through mechanical means. Herbicide will not be used because these chemicals may impact the water quality monitoring. Functional Maintenance Functional maintenance has two components: 1) Preventive maintenance 2) Corrective maintenance 1) Preventive Maintenance Preventive maintenance activities to be instituted at a Swale are: c) Grass Mowing. Vegetation seed mix within the Swale is designed to be kept short to maintain adequate hydraulic functioning and to limit the development of faunal habitats. d) Trash and Debris. During each inspection and maintenance visit to the site, debris and trash removal will be conducted to reduce the potential for inlet and outlet structures and other components from becoming clogged and inoperable during storm events. e) Sediment Removal. Sediment accumulation, as part of the operation and maintenance program at a Swale, will be monitored once a month during the dry season, after every large storm (0.50 inch), and monthly during the wet season. Specifically, if sediment reaches a level at or near plant height, or could interfere with flow or operation, the sediment will be removed. If accumulation of debris or sediment is determined to be the cause of decline in design performance, prompt action (i.e., within ten working days) will be taken to restore the Swale to design performance standards. Actions will include using additional fill and vegetafion and/or removing accumulated sediment to correct channeling or ponding. Characterization and Appropriate disposal of sediment will comply with applicable local, county, state, or federal requirements. The Swale will be regraded, ifthe flow gradient has changed, and then replanted with sod. f) Removal of Standing Water. Standing water must be removed if it contributes to the development of aquafic plant communifies or mosquito breeding areas. g) Mechanical and Electronic Components. Regularly scheduled maintenance will be performed on fences, gates, locks, and sampling and monitoring equipment in accordance with the manufacturers' recommendafions. Electronic and mechanical components will be operated during each maintenance inspecfion to assure confinued performance. h) Fertilization and Irrigation. The vegetation seed mix has been designed so that fertilization and irrigation is not necessary. Fertilizers and irrigation will not be used to maintain the vegetation. i) Elimination of Mosguito Breeding Habitats. The most effective mosquito control program is one that eliminates potential breeding habitats. Corrective Maintenance Corrective maintenance is required on an emergency or non-routine basis to correct problems and to restore the intended operation and safe function of a Swale. Corrective maintenance activities include: Removal of Debris and Sediment. Sediment, debris, and trash, which impede the hydraulic functioning of a Swale and prevent vegetative growth, will be removed and properly disposed. Temporary arrangements will be made for handling the sediments until a permanent arrangement is made. Vegetation will be reestablished after sediment removal. Structural Repairs. Once deemed necessary, repairs to structural components of a Swale and its inlet and outiet structures wiil be done within 10 working days. Qualified individuals (i.e., the designers or contractors) wiii conduct repairs where structural damage has occurred. Embankment and Slope Repairs. Once deemed necessary, damage to the embankments and slopes of Swale will be repaired within 10 working days). Erosion Repair. Where a reseeding program has been ineffecfive, or where other factors have created erosive conditions (i.e.. pedestrian traffic, concentrated flow, etc.), correcfive steps will be taken to prevent loss of soil and any subsequent danger to the performance of a Swale. There are a number of corrective actions than can be taken. These include erosion control blankets, riprap, sodding, or reduced fiow through the area. Designers or contractors will be consulted to address erosion problems if the solufion is not evident. Fence Repair. Repair offences will be done within 30 days to maintain the security of the site. Elimination of Animal Burrows. Animal burrows will be filled and steps taken to remove the animals if burrowing problems confinue to occur (filling and compacfing). If the problem persists, vector control specialists will be consulted regarding removal steps. This consulfing is necessary as the threat of rabies in some areas may necessitate the animals being destroyed rather than relocated. If the BMP performance is affected, abatement will begin. Otherwise, abatement will be perfomned annually in September. General Facilitv Maintenance. In addition to the above elements of corrective maintenance, general correcfive maintenance will address the overall facility and its associated components. If corrective maintenance is being done to one component, other components will be inspected to see if maintenance is needed. Maintenance Frequency The maintenance indicator document, included as Appendix B, lists the schedule of maintenance activities to be implemented at a Swale. Debris and Sediment Disposal Waste generated at Swale is ultimately the responsibility of the owner of the property. Disposal of sediment, debris, and trash will comply with applicable local, county, state, and federal waste control programs. Table 3.1.2.1 shows a few possible disposal services for waste material. Hazardous Waste Suspected hazardous wastes will be analyzed to determine disposal options. Hazardous wastes generated onsite wiil be handled and disposed of according to applicable Hal, state, and federal regulations. A solid or liquid waste is considered a hazardous waste if it exceeds the criteria listed in the CAR, Titie 22, Article 11. Maintenance Responsibility: All BMPs and erosion control devices shall be maintained, repaired and replaced as needed by the Owner. The operation and maintenance requirements for post-construction BMPs are shown in Table 6.1 TABLE 6.1 Type of BMP: Grass Lined Drainage Swale (Biofilter) (S1) Routine Action Visual Inspection Maintenance Indicator Plant health and excessive foliage Field Measurement Excessive foliage & grass height Measurement Frequency Weekly Maintenance Activity Water, fertilize, prune, mow The maintenance of post-construction BMPs will be the responsibility of the Owner of the project. The average annual cost for maintaining the Grass Lined Swale wiil be $1200/year. Certificafion of Responsibility Inspecfion and maintenance of BMPs is the responsibility of Owner ofthis project. A contract for trash management and litter control and landscape maintenance, will be made with outside contractors, as necessary. The future tenants will be instructed about environmental procedure regarding contaminafion and clean-up procedures. All documents, including this Storm Water Management Plan, relafing to site maintenance will be kept on-site and will be made available to county Inspector, upon request. The following person is in responsible charge of educafion of tenants & employees, and implementation and maintenance of the required BMP's. Subsequent owners shail obtain said responsibilifies. Name: Rudy Zavalani Telephone: 760-729-7598 Signature Date The Stormwater Management Plan has been prepared under the direcfion of the following Registered Civil Engineer. The Registered Civil Engineer attests to the to technical informafion contained herein and the engineering data upon which recommendafions, conclusions, and decisions are based. y Krisfin LipsW a'borer Date ATTACHMENT "A" PRELIMINARY HYDROLOGY REPORT FOR RUDY ZAVALANI 4516 Salisbury Drive Carlsbad, CA 92008 PROJECT LAGUNA CONDOMINIUMS 735 Laguna Drive Carlsbad, CA PREPARED BY: Aquaterra Engineering Inc. 1843 Campesino Place Oceanside, CA 92054 tele: 760-439-2802 fax: 760-439-2866 June 1, 2006 Prepared under the supervision of: Gary Lipska, RCE 23080 Date Exp. 12/31/07 Project Description The 0.24 acre project site is occupied by one single family dwelling . The surrounding adjacent lands have been developed with single family structures on standard sized residential lots. The proposed project is to develop the site for 5 residential condominium attached units, and the development of three new building pads. A paved access driveway from Madison Street, a public street, is also proposed. The existing site topography slopes in the northwesterly direction with mild slope gradients. The development will not alter the existing drainage patterns from the existing pre-development condition. All drainage flows shall be collected and transported to offsite public drainage facilities by surface swales. Underground drainage structures or pipes are not proposed. As a result of the proposed construction of the structures and paved surfaces, the calculated 100 year frequency storm water volumes will be increased by 0.35 cfs for the site. This increased peak discharge rate is considered to be not significant. As mitigation for the calculated increase stomn water discharge volumes and velocities, the storm flows from the impervious surfaces shall be discharged onsite and conveyed through shallow grass lined channels to remove all polluting contaminants and reduce the drainage ftow velocities before leaving the project site. There is no historical evidence that the downstream water courses or drainage facilities are inadequate to handle the storm ftows. Due to the minimal modification of the site development, we do not believe that any downstream properties will be adversely impacted by the proposed development.. The project site is not located near a floodway or floodplain or a water course plotted on any official floodway map. Conclusion As a result of the project layout and the inclusion of design features, we do not anticipate any negative impacts to downstream properties. SUMMARY TABLE OF HYDROLOGY CALCULATIONS LAGUNA CONDOMINIUMS, CARLSBAD DATE: 6-01-06 PRE -CONSTRUCTION BASIN X POST -CONSTRUCTION BASIN A c Tc / A Q V AQ (min.) C'/hr) (acres) (cfs) m (cfs) 0.52 6.9 5.35 0.24 0.67 - 0.36 0.66 5.1 6.50 0.24 1.03 -0.36 Hydrology & Hydraulics Report City of Carlsbad This Hydraulics and Hydrology Report was prepared using the following Manuals: Hydrology Manual. June 2003 edition, County of San Diego Drainage of Highwav Pavements. U.S. Dept. of Transportation The Rational Method was used to determine the 100 yr. storm Q values. The Rational Method uses the following formula to establish the flow: Q = CIA where, Q = the peak runoff in cubic feet per second C = Runoff coefficient representing the ratio of runoff to rainfall I = time average intensity in inches per hour A = Area of the subbasin in acres HYDROLOGY REPORT e- ateira Engineering Inc. iquaterra Engineering Inc. [PROJECT LA b ^AJ^o i 6 6 7 8 910 15 20 30 Minutes 40 50 1 Duration Directions for Application: (1) From precipitation maps determine 6 hr and 24 hr amounts fbr the selected irequency. These maps are included In tha County Hydrology Manual (10,50, and 100 yr maps Included in the Design and Procedure Manual). (2) Adjust 6 hr precipitation (if necessary) so that it Is within the range of 45% to 65% of the 24 hr precipitation (not applicaple to Desert). (3) Rot 6 hr precipitation on the right side of the chart (4) Draw a line through the point parallel to the plotted lines. (5) This line is the Intensity-duration cun/e for the location t>elng analyzed. Application Form: (a) Selected frequency (b) P6-i_ln..P24*i year •P 24 5C %g) (0)AdjustedPg^)« Z.5 in. (d) tj^ = min. (e) I« inThr. Note: This chart replaces the Intensity-Duration-Frequency cun/es used since 1965. 1 j ' "'• •J.5" 1 P6 Ouraiton 1 14} 2 2a { 3 H S.S 4 •4.8 •J.5" 1 P6 Ouraiton 1 1 I 1 f -T} r 1 1 " i \ 1 s 7 liiltSd:! 6.27 8.89 7.90 9.22 1064 1-1.88 13.17 -14.48 15.61 s 7 KaiEIB 4.24 6.30 036 7.4a 8.48 8.54 1060 042 11.68 *9i27 12.78 IOT1 -..-...IS 1.88 2.S3 3.37 4.21 6.05 8.00 074 7.58 1060 042 11.68 *9i27 12.78 IOT1 1.30 1.98 2.89 3.24 089 4.64 8.19 &84 7.13 7,78 20 i.6Si 2.18 2.68 3.2d 3.77 4.31 4J5 5.39 6.93 048 2B 1.40 1.87 2.33 027 1.90 3.73 420 m 4.87 Tis 013 456 &60 "IW 90 0L83 1.24 iM 2,07 2.49 027 1.90 3.73 420 m 4.87 Tis 013 456 &60 "IW 40 oio 1.09 1.36 1.19 1.72 1.49 2.07 1:79 2.41 2.09 T.8§ iT-ia T19 .2:29 2.39 010 ^i89 045 '2.98 079 028 4.13 •3.5s 90 0.80 aso 1.36 1.19 1.72 1.49 2.07 1:79 2.41 2.09 T.8§ iT-ia T19 .2:29 2.39 010 ^i89 045 '2.98 079 028 4.13 •3.5s SO aso 1.06 1.33 1.59 2.41 2.09 T.8§ iT-ia T19 2.12j 1.36 i38 i.84 1.83" z6s 2.04 1.70 2J2 1.87 018 •§.4S 2.04' 90 120 —m .ML 63ts 081 082 068 ,1J02 08$ 1.23 \X& cLM 2.41 2.09 T.8§ iT-ia T19 2.12j 1.36 i38 i.84 1.83" z6s 2.04 1.70 2J2 1.87 018 •§.4S 2.04' 90 120 —m .ML 63ts a44 0J9 0.73 1.23 \X& cLM 1.03 1,18 1.32 1.47 1.62 litQ 180 042^ 039 0.62 0.65 078 0.91 1.04 1.18 Ul 1.44 1.67 240 OJSSi 033 0.43 054 Oi5 0.78 087 098 1.06 119 1.30 300 0.1^ 028 0.47 0.6d 6.8^ 094 1.03 1.13 300 0.17 025 0.33 0.42)0.50 0.58 0,67 0.75 0.64 b.92 1.00 Intetialty-DurBtion Design Ciiart - Template County of SanDiego Hydrology Maiiiial Rainfall Isopluvials 100 Year RttU«rflll Event - 6 Hours IsoptuvtoiOnciisa) DEW .r^.r, c JSSSSSSSSSSi 1 3 0 3 MUes ».«lll«ii»«rii«»»*»lliil«iH<»». AE Feet ^5000 .4000 .3000 '2000 ^1000 - 900 ^800 -TOO -soo"^, -.400 -300 -200 -100 50 40 [—30 10 Tc Tc L AE EQUATION AE / AE Time of concoitration (hours} Wafaroourse Distance (miles) Change in devation along effective slope fine (See Figure 3-5)(fBeQ Tc HoursI Minutes -120 100 —80 70 L \ Miles Feet N. ^1- 0.5- AE SOURCE: Califbmia Division of Hghways (1941) and Kirpich (1940) 4000 — 3000 \ .2000 I—1800 1600 1400 I—1200 -1000 h—900 '800 •700 -—600 .500 •400 (—300 .200 -240 180 -60 -50 —40 — 30 -20 —16 —16 —14 12 • 10 -9 —8 7 6 -5 1—4 Tc FIGURE Nomograph for Delamiiincrfion of Time of ConcenMion (Tc) or Travel Time (Tt) forNcrtuial Wafersfieds San Diego County Hydrology Manual Date: June 2003 Section: 3 6 of 26 Table 3-1 RUNOFF COEFFICIENTS FOR URBAN AREAS LandUse Runo£PCoeflRo{«tt"r»» • Soil Tvoe . NRCS Elements County Elements % IMPER. A B C D Undistuibed Natural Terrain (Natural) Pemianent Open Space 0* 0.20 0.25 0.30 0.35 Low Density Residential (LDR) Residential, 1.0 DU/A or less 10 0.27 0.32 0.36 0.41 - Low Density Residential (LDR) Residential, 2.0 DU/A or less 20 0.34 0.38 0.42 0.46 Low Densiiy Residential (LDR) Re8identiaU.9 DU/A or less 25 0.38 0.41 0.45 0.49 Medium Density Residential (MDR) Residential, 4.3 DU/A or less 30 0.41 0.45 0.48 0,52 Medium Density ResidentiiBi (MDR) Residential, 7.3 DU/A or less 40 0.48 0,51 0.54 0.57 j^Mei^jDens^^R^ 45 0.54 0.57 0.60 Medium Density Residential (MDR) Residential, 14.5 DU/A or less 50 0.55 0.58 0.60 0.63 ,JJigh Density ... Residential, 24.0 DU/A or less 65 0.67 0.69 0.71 Higih Density Residential (HDR) Residential, 43.0 DU/A or less 80 0.76 0.77 Q.?8 - 0.79 Commercial/Industrial (N. Com) Neighbodiood Commercial 80 0.76 0.77 0.78 0.79 Commeroial/Induslrial (0. Com) General Commercial 85 0.80 0.80 0.81 0.82 Commercial/lndustriai (O.P. Com) Office Professional/Ckmunereial 90 0.83 0.84 0.84 0.85 Commeroial/Industriat (Limitad L) Limitad Industtial 90 0.83 0.84 0.84 0.85 0.87 Commereial/Industrial (Qeneral I) Qeneral Industrial 95 0.87 0.87 0.87 0.85 0.87 ooe£Bolent, Cp, for tbe soil typeX or for areas that will remain undisturbed in peipeluity. is located in Cleveland National Fdkest). DU/A » dwelling units per acre NRCS " National Resources Conservation Service vnou comncicni as oescnoea m section 3.1.2 (representing the pervious ni Justification must be given tliat area will remain natural forever (e.g., tiie area 3-6 San Diego Coimty Hydrology Nfismual Date: Jane 2003 Secdon: 3 12 of 26 Note that the Initial Time of Concentration should be reflective of the general land-use at the iq)stream end of a drainage basin. A single lot with an area of two or less acres does not have a significant effect wla&e the drainage basin area is 20 to 600 acres. Table 3-2 provides limits of the length (Maximum Length (LM)) of sheet flow to be used in hydrology studies. Initial Ti vahies based on average C values for flie Land Use Element are also included. These values can be used in planning and design ^>plications as described below. Exceptions may be approved by the **Regulating Agency when submitted with a. detailed study. Table 3-2 MAXIMUM OVERLAND FLOW LENGTH (LM) Element* DU/ Acre .5% 1% 2% 3% 5% 10% Element* DU/ Acre LM Ti LM Ti LM Ti LM Ti LM Ti LM Ti Natural 50 13.2 70 12.5 85 10.9 100 103 100 8.7 100 6.9 U>K I 50 12^ 70 11.5 85 10.0 100 9.5 100 8.0 100 6.4 LDR 2 50 11.3 70 10.5 85 9.2 100 8.8 100 7.4 100 5.8 LDR 2.9 50 10.7 70 10.0 85 8.8 95 8.1 100 7.0 100 5.6 MDR 4.3 50 10.2 70 9.6 80 8.1 95 7.8 100 6.7 100 53 MDR 73 50 9J2 65 8.4 80 7.4 95 7.0 100 6.0 100 4.8 MDR 10.9 50 8.7 65 7.9 80 6.9 90 6.4 100 5.7 100 4.5 MDR 14.5 50 8.2 65 7.4 80 6.5 90 6.0 100 5.4 100 4.3 HDR 24 50 6.7 65 6.1 75 5.1 90 4.9 95 43 100 3.5 HDR 43 50 5.3 65 4.7 75 4.0 85 3.8 95 3.4 100 2.7 N.(3om 50 53 60 4.5 75 4.0 85 3.8 95 3.4 100 2.7 G.Com » 50 4.7 60 4.1 75 3.6 85 3.4 90 2.9 100 Z4 o.pycom 50 4.2 60 3.7 70 3.1 80 2,9 90 2.6 100 2.2 Limited L 50 4.2 60 3.7 70 3.1 80 2.9 90 2.6 100 2.2 Generail. 50 3.7 60 3.2 70 2.7 80 2.6 90 23 IOO 1.9 >*S^T^le 3-1 for more detailed description 3-12 • ;• / \ .7 -OA CcC ^ V J A CbD '\ - X V, : 7? ~rV/.-4v; \1 L 1 -— / '1 \ '• .-/lie \' 1 r cr / \ y • ^1 '.'1 4 SHEET 22 SCALE 1"=2< TABLE 11.—INTERPRETATI<»iS FOR LAND MANAfiEMBiT—Contituied Map syiribol Soil Erodibility LfE LpB LpC LpC2 LpD2 Lp£2 LrE LrE2 LrG LsE LsF Lu LvF3 Md mc MIE MnA MnB MoA MpA2 MrG MvA MvC MvD MxA OhC OhE OhF OkC OlcE PeA PeC PeC2 PeD2 PfA PfC Py Las Flores-Uiban land complex* 9 to 30 percent slopes: Las Flores Urban land Las Posas fine sandy loan, 2 to 5 percent slopes 5 S to to 9 percent slopes— 9 percent slopes. 15 percent slopes, 15 to 30 percent slopes, to 30 percent to 30 percent Las Posas fine sandy loaa. Las Posas fine sandy loam, eroded. Las Posas fine san^ loasi, 9 to eroded. Las Posas fine sandy loam, eroded. Las Posas stony fine sandy loam, slopes. Las Posas stony fine sandy loam, slopes, eroded. Las Posas s-tony fine srnidy loam, 30 to 65 peorcent slopes. Linne clay loam, 9 to 30 percent slopes Linne clay loam, 30 to 50 percent slopes Loamy alluvial land LoasQ^ alluvial land-Huerhtiero conplex, 9 to 50 percent slopes, severely eroded: Loan^ alluvial land Huerhuero S!ade land- Jdarina loamy coarse sand, 2 to 9 percent slopes Marina loamy coarse sand, 9 to 30 percent slopes — Mecca coarse sandy loam, 0 to 2 percent slopes Mecca coarse sandy loam, 2 to 5 percent slopes- Mecca sandy loam, saline, 0 to 2 percent slopes Mecca fine sandy loam, 0 to 2 percent slopes, eroded— Wetamorphic rock land Motts-ville loasry coarse sand, 0 to 2 percent slopes Mottsville loamy coarse sand, Mottsville loamy coarse sand. Mottsville loamy coarse sand, wet, slopes. Olivenhain cobbly loam, Olivenhain cobbly loam. 2 to 9 percent slopes—- 9 to 15 percent slopes— 0 to 2 percent 2 to 9 percent slopes-- 9 to 30 percent slopes Olivenhain cobbly loam, 30 to 50 percent sieves Olivenhain-Urban land con^lex, 2 to 9 percent slopes: Olivenhain Urban land Olivenhain-Uxban land complex, 9 to 30 percent slopes: Olivenhain Urban land Placentia sandy loam, 0 to 2 percent slopes Placentia sandy loam, 2 to 9 percent slopes Placentia sandy loam, 5 to 9 percent slopes, eroded-— Placentia sandy loam, 9 to 15 percent slqpes, eroded- Pi acentia sandy loam, thick surface, 0 to 2 percent slopes. Placentia sandy loam, thick surface, 2 to 9 percent slqpes. Playas D D 0 D D D D D D D C C B D D D A A B B B B D A A A D D D D 0 D D D D D D D D Moderate 2- Moderate 2- Moderate 2- Moderate 2- Moderate 1- Moderate 1- Moderate 1- Severe 1— Moderate 2- Severe 1—- Severe 16— Severe 1- Severe 1- 2- 2- 16 16 Severe Severe Severe Severe Severe 16 Severe 16 Se-vere Severe Severe Severe Severe Se-vere 16- Severe 16- Severe 1— Severe 9— Severe 9— Severe 9— Severe 9— Severe 16— Severe 16— Moderate 2 Slight. Slight. Moderate. Moderate. Moderate. Moderate. Moderate. Slight. Severe. Severe. Slight. Slight. Se-vere. Slight. 4 Slight. :? Sli^t. 1 Slight. 4 Slight. Slight. Moderate. Slight. Slight. Slight. Slight. Slight. Slight. See footnotes at end of table. 36 ATTACHMENT "B" INFILTRATIVE VEGETATIVE SWALE 4 faUO I 1 'FtoodPieweapik ' Mdter <May Flow Deplh SECTIOH 44 or less Sf#e«e slopes %to^ pereett* Topsoil Vegetated Swale TC-30 Design Considerations Tributary Area Area Required Slope Water Availability Description V^etated swales are open, shallow channels with vegetation covering the side slopes and bottom that collect and slowly convey runoff flow to downstream discharge points. They are designed to treat runoff through filtering by the vegetation in the channel, filtering through a subsoil matrix, and/or infiltration into the underlying soils. Swales can be natural or manmade. They trap particulate pollutants (suspended solids and trace metals), promote infiltration, and reduce the flow velocity of stormwater runoff. "Vegetated swales can serve as part of a stormwater drainage system and can replace curbs, gutters and storm sewer systems. California Experience Caltrans constructed and monitored six vegetated swales in southem California. These swales -were generally effective in reducing the volume and mass of pollutants in runoff. Even in the areas where the annual rainfall was only about lo inches/yr, the vegetation did not require additional irrigatioEL One factor that strongly affected performance was the presence of large numbers of gophers at most of the sites. The gophers created earthen mounds, destroyed vegetation, and generally reduced the effectiveness of the controls for TSS reduction. Advantages • If properly designed, vegetated, and operated, swales can serve as an aesthetic, potentially inexpensive urban development or roadway drainage conveyance measure with significant collateral v>^ter quality benefits. Targeted Constituents • Sediment A • Nutrients • • Trasii • • Met^s • • Bacteria • • Oil and Grease • Organics • Legend (Removal Effectiveness) • Low • High A Medium SQA Califomia Stormwater C2uanty Association January 2003 Califomia Stonnwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com 1 of 13 TC-30 Vegetated Swale • Roadside ditches should be regarded as significant potential swale/buffer strip sites and should be utilized for this purpose whenever possible. Limitations • Can be difficult to avoid channelization. • May not be appropriate for industrial sites or locations where spills may occur • Grassed swales cannot treat a very large drainage area. Large areas may be divided and treated using multiple swales. • A thick vegetative cover is needed for these practices to function properly. • They are impractical in areas with steep topography. • They are not effective and may even erode when flow velocities are high, if the grass cover is not properly maintained. • In some places, their use is restricted by law: many local municipalities require curb and gutter systems in residential areas. • Swales are mores susceptible to failure if not properly maintained than other treatment BMPs. Design and Sizing Guidelines • Flow rate based design determined by local requirements or sized so that 85% of the annual runoff volume is discharged at less fhan the design rainfall intensity. • Swale shoxild be designed so that the -water level does not exceed 2/3rds the height of the grass or 4 inches, which ever is less, at fhe design treatment rate. • Longitudinal slopes should not exceed 2.5% • Trapezoidal channels are normally recommended but ofher configurations, such as parabolic, can also provide substantial water quality improvement and maybe easier to mow than designs with sharp breaks in slope. • Swales constructed in cut are preferred, or in fill areas that are far enough firom an adjacent slope to minimize the potential for gopher damage. Do not use side slopes constructed of fill, which are prone to structural damage by gophers and other burrowing animals. • A diverse selection of low grovring, plants that thrive under the specific site, climatic, and watering conditions should be specified. Vegetation whose growing seeison corresponds to the wet season are preferred. Drought tolerant vegetation should be considered especially for swales that are not part of a regularly irrigated landscaped area. • The width of the swale should be determined using Manning's Equation using a value of 0.25 for Manning's n. 2 of 13 California Stormwater BMP Handbook January 2003 New Development and Redevelopment www.cabmphandbooks.com Vegetated Swale TC-30 Construction/Inspection Considerations • Include directions in the specifications for use of appropriate fertilizer and soil amendments based on soil properties detemuned through testing and compared to the needs of tiie -vegetation requirements. • Install swales at the time of the year when there is a reasonable chance of successful establishment without irrigation; however, it is recognized that rainfall in a given year may not be sufficient and temporaiy irrigation may be used. • If sod tiles must be used, they should be placed so that there are no gaps between the tiles; stagger the ends of the tiles to prevent the formation of channels along the swale.or strip. • Use a roller on the sod to ensure that no air pockets form between the sod and the soil. • Where seeds are used, erosion controls will be necessary to protect seeds for at least 75 days after fhe first rainfaU ofthe season. Performance The literature suggests that vegetated swales represent a practical and potentially effective technique for controUiog urban runoff quality. While limited quantitative performance data exists for vegetated swales, it is known that check dams, slight slopes, permeable soils, dense grass cover, increased contact time, and small storm events all contribute to successful pollutant removal by the swale system. Factors decreasing the effectiveness of swales include compacted soils, short runoff contact time, large storm events, frozen ground, short grass heights, steep slopes, and high runoff velocities and discharge rates. Conventional vegetated swale designs have achieved mixed results in removing particulate poUutants. A study performed by fhe Nationwide Urban Runoff Program (NURP) monitored three grass swales in the Washington, D.C, area and found no significant improvement in urban runoff quality for fhe pollutants analyzed. However, the weak performance of these swales was attributed to the high flow velocities inthe swales, soO compaction, steep slopes, and short grass heighL Another project in Durham, NC, monitored fhe performance ofa carefully designed artificial swale that received runoff firom a commercial parking lot. The project tracked 11 stonns and concluded that particulate concentrations of heavy metals (Cu, Pb, Zn, and Cd) were reduced by approximately 50 percent. However, the swale proved largely ineffective for removing soluble nutrients. The effectiveness of vegetated swales can be enhanced by adding check dams at approximately 17 meter (50 foot) increments along their length (See Figure 1). These dams maximize the retention time within the swale, decrease flow velocities, and promote particulate settling. Finally, fhe incorporation of vegetated filter strips parallel to fhe top of fhe channel banks can help to treat sheet flows entering fhe swale. Only 9 studies have been conducted on all grassed channels designed for water quality (Table 1). The data suggest relatively high removal rates for some pollutants, but negative removals for some bacteria, and fair performance for phosphorus. January 2003 Califomia Stormwater BMP Handbook 3 of 13 New Development and Redevelopment www.cabmphandbooks.com TC-30 Vegetated Swale Table 1 Grassed swale pollutant removal efficiency data Removal Efficiencies (% Remo-val) Study TSS TP TN NOs Metals Bacteria Type Caltrans 2002 77 8 67 66 83-90 -33 dry swales Goldberg 1993 67.8 4.5 -31-4 42-62 -100 grassed channel Seattle Metro and Washington Department of Ecology 1992 60 45 --25 2-16 -25 grassed channel Seattle Metro and Washington Department of Ecology, 1992 83 29 --25 46-73 -25 grassed diannd Wang et al., 1981 80 -- . -70-80 -dry swale Dorman et al., 1989 98 18 -45 37-81 dry swale Harper, 1988 87 83 84 80 88-90 -dry swale Kerdier et al, 1983 99 99 99 99 99 dry swale Harper, 1988. 81 17 40 52 37-69 wet swale Koon, 1995 67 39 -9 -35 to 6 wet swale Whfle it is difficult to distinguish between different designs based on the small amount of available data, grassed channels generally have poorer removal rates fhan wet and dry swales, althougih some swales appear to export soluble phosphorus (Harper, 1988; Koon, 1995). It is not dear why swales export bacteria. One explanation is that bacteria thrive in fhe warm swale soils. Siting Criteria The suitability of a swale at a site will depend on land use, size of fhe area serviced, soil type, slope, imperviousness of the contributing -watershed, and dimensions and slope of fhe swale system (Sc^uder et al., 1992). In general, swales can be used to serve areas of less fhan 10 acres, with slopes no greater than 5 %. Use of natural topographic lows is encouraged and natural drainage courses should be regarded as significant local resources to be kept in use (Young et al., 1996). Selection Criteria (NCTCOG, 1993) • Comparable perfonnance to wet basins • limited to treating a few acres • Avaflability of water during dry periods to maintain vegetation • Sufficient available land area Research in the Austin area indicates that vegetated controls are effective at removing pollutants even when dormant. Therefore, irrigation is not required to maintain growth during dry periods, but may be necessaiy only to prevent fhe vegetation firom dying. 4 of 13 California Stormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com January 2003 Vegetated Swale TC-30 The topography of the site should permit the design of a channel with appropriate slope and cross-sectional area. Site topography may also dictate a need for additional structural controls. Recommendations for longitudinal slopes range between 2 and 6 percent. Flatter slopes can be used, if suffident to provide adequate conveyance. Steep slopes increase flow velodty, decrease detention time, and may require energy dissipating and grade chedc Steep slopes also can be managed using a series of check dams to terrace the swale and reduce fhe slope to within acceptable limits. The use of check dams -with swales also promotes infiltration. Addttional Design Guidelines Most of fhe design guidelines adopted for swale design specify a minimum hydraulic residence time of 9 minutes. This criterion is based on the results of a single stucfy conducted in Seattle, Washington (Seattie Metro and Washington Department of Ecology, 1992), and is not well supported Analysis of the data collected in that study indicates that pollutant removal at a residence time of 5 minutes was not significantiy different, although there is more variability in that data. Therefore, additional research in fhe design criteria for swales is needed- Substantial pollutant removal has also been observed for vegetated controls designed solely for conveyance (Barrett et al, 1998); consequentiy, some flexibility in fhe design is -warranted. Many design guidelines recommend that grass be fi-equentiy mowed to maintain dense coverage near fhe groimd surface. Recent research (Colwell et al., 2000) has sho-wn mowing fi-equency or grass height has little or no effect on pollutant removal. Summary of Design Recommendations 1) The swale should have a length that provides a minimiTm hydraulic residence time of at least 10 minutes. The maximum bottom width should not exceed 10 feet unless a di-viding berm is pro-vided. The depth of flow should not exceed 2/3rds fhe hdght of the grass at the peak of the water quality design storm intensity. The channel slope should not exceed 2.5%. 2) A design grass height of 6 indies is recommended. 3) Regardless of fhe recommended detention time, the swale should be not less fhan 100 feet in length. 4) The width of fhe swale should be determined using Manning's Equation, at fhe peak of fhe design storm, using a Manning's n of 0.25. 5) The swale can be sized as both a treatment fecility for the design storm and as a conveyance system to pass the peak hydraulic flows of the 100-year storm if it is located "on-line." The side slopes should be no steeper fhan 3:1 (H:V). 6) Roadside ditches should be regarded as significant potential swale/buffer strip sites and should be utilized for this purpose -v^ilenever possible. If flow is to be introduced through curb cuts, place pavement sUghtiy above the elevation of the vegetated areas. Curb cuts should be at least 12 inches wide to prevent dogging. 7) Swales must be vegetated in order to pro-vide adequate treatment of runoffl It is important to maximize water contact with vegetation and fhe soil surface. For general purposes, select fine, close-growing, water-resistant grasses. If possible, divert runoff (other fhan necessary irrigation) during fhe period of vegetation January 2003 Califomia Stormwater BMP Handbook 5 of 13 New Development and Redevelopment www.cabmphandbooks.com TC-30 Vegetated Swale establishment. Where runoff diversion is not possible, cover graded and seeded areas with suitable erosion control materials. Maintenance The useful life of a vegetated swale system is directiy proportional to its maintenance firequency. If properly designed and regularly maintained, vegetated swales can last indefinitely. The maintenance objectives for vegetated swale systems indude keeping up the hydraulic and removal efficiency of the channd and maintaining a dense, healthy grass cover. Maintenance activities should indude periodic mowing (with grass never cut shorter than the design flow depth), weed control, watering during drought conditions, reseeding of bare areas, and dearing of debris and blodcages. Cuttings should be removed firom the channd and disposed in a local composting facility. Accumulated sediment should also be removed manually to avoid concentrated flows in the swale. The application of fertilizers and pestiddes should be minimal. Another aspect of a good maintenance plan is repairing damaged areas within a diaimel. For example, if the channd develops ruts or holes, it should be repaired utilizing a suitable soil that is properly tamped and seeded. The grass cover should be thick; if it is not, reseed as necessaiy. Any standing water removed during the maintenance operation must be disposed to a sanitaiy sewer at an approved disdiarge location. Residuals {e.g., silt, grass cuttings) must be disposed in accordance with local or State requirements. Maintenance of grassed swales mostly involves maintenance of the grass or wetiand plant cover. Typical maintenance activities are summarized below: • Inspect swales at least twice annuafly for erosion, damage to vegetation, and sediment and debris accumulation preferably at the end of fhe wet season to schedule summer maintenance and before major fall runoff to be sure the swale is ready for winter. However, additional inspection after periods of heavy runoff is desirable. The swale should be checked for debris and Htter, and areas of sediment accumulation. • Grass height and mowing firequency may not have a large impact on pollutant remo-val Consequentiy, mowing may only be necessaiy once or twice a year for safety or aesthetics or to suppress weeds and woody vegetation. • Trash tends to accumulate in swale areas, particularly along highways. The need for litter removal is determined through i)eriodic inspection, but litter should alv^iys be removed prior to mowing. • Sediment accumulating near culverts and in channels should be removed when it buflds up to 75 mm (3 in.) at any spot, or covers vegetation. • Regularly inspect swales for pools of standing water. Swales can become a nuisance due to mosquito breeding in standing water if obstructions devdop (e.g. debris accumulation, invasive vegetation) and/or if proper drainage slopes are not implemented and maintained. 6 of 13 Califomia Stormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com January 2003 Vegetated Swale TC-30 Cost Construction Cost Littie data is avaflable to estimate the difference in cost between various s-wale designs. One study (SWRPC, 1991) estimated fhe construction cost of grassed channels at approximately $0.25 per ft=^. This price does not include design costs or contingendes. Brown and Schuder (1997) estimate these costs at approximately 32 percent of construction costs for most stormwater management practices. For swales, however, these costs would probably be significantiy higher since the construction costs are so low compared with other practices. A more realistic estiinate would be a totai cost of approximately $0.50 per ft*, which compares favorably with ofher stormwater management practices. January 2003 Califomia Stormwater BMP Handbook New Development and Redevelopment www.cabmphandt>ooks.com 7 of 13 Vegetated Swal Table 2 Swale Cost Estimate (SEWRPC, 1991) "' "" 1 UnitCost Total Cost Component Unit Extent Low 1 Moderate High Low 1 Moderate High Mobllizatian/ Oamoblllzation-Ught Swale 1 $107 1 $274 $441 $107 $274 $441 Sits PreoarfltlGn General Excavatioif. Acre Acre Yd' Yd' 0.5 0.25 372 1,210 $2,200 $3.aoo $2.10 $0.20 $3,600 $5,200 $3.70 $0.35 $5,400 $6,600 $5.30 $0.50 $1,100 $050 $761 $242 $1,900 $1,300 $1,376 $424 $2,700 $1,650 $1,972 $605 SItas Development Salvaged Topsoil Seed, and Mulch'.. Yd' Yd' 1,210 1,210 $0/40 $1.20 $1.00 $2.40 $1.60 $3.60 $464 $1,452 $1,210 $2,904 $1,036 $4,356 Subtotal ~ ----$5,116 $9,366 $13,660 ContlngencleB Swale 1 25% 25% 26% $1,279 $2,347 $3,415 Total ---$6,395 $11,735 $17,075 Note: MobilizafionAlemobBization refiBratotheotganiiBtion and planning involved in establlaliinQ a vegetative swale. " Swale has a bottom width of 1.0 foot, a top wiclth oT 10 feet with 1:3 side slopes, and a 1,000-foot length. Area cleared »(top width 10 Ibet) x swale length. ° Area grubbed s (top width x swaie length}. 'Volume exoavated s (0.67 x top width x swale depth) x swale length (parabolic cross-section). 'Area Uiled «(top width B(swaie deDth»^ x swale length (parabolic cross-section). 3(tQp width) ' Area seeded » area cleared x 0.5. > Area sodded s area cleared x 0.5. Sof 13 California Stormwater BMP IHandbook New Deveiopment and Redevelopment www.cabmDhandbooks.com January 2003 Vegetated Swale TC-30 Table 3 Estimated Maintenance Costs (SEWI^IPC, 1991) Swale Size (Deptu^ and Top Widtti} Component Unit Cost 1.5 Foot Depth. One- Foot Bottom Width, lO-Foot Top Width 3-Foot Deptii, S-Fool Bottom Widtti, 2i-Foot Top Width Commeint Lawn Mowing $0.65/1,000 ff/mowing $0.14/linGarfoot $0.21/linear foot Lawn maintenance areeettop wid1h +10 fest) X lengtii. Movt elgtittimes peryear Geneni Liwn Cara $9.00/1,000 ff/ysar 90.19/lin earfoot £0.28/linear foot l.Bwn maintenance area > (top width * 10 feet) Kisnglh Swale Datjiisend Utter Ram oval $0.10 / linear foot / year $0.10/linear tool S0.10/linear foot - Qrasa Reseeding wlh Mjich end Fertilizer $0.30/yd' $0.01 /llnearroot $OJ01 /llnearfoot Area nevegetatsd equals 1 of iBwn mamtenance area per year Ptugtam Admlniatratton and Swale Inspedion $0.16 / linear fool / yoar, plUK $26/Inspecflon $0.16/linaar foot $0.15/linaar foot Inspect lour times peryear Tolal r $0.5a/linear foot $0.76/linear foot January 2003 California Stormwater BMP Handbook New Development and Redevelopment www.cabmphandbooks.com 9 of 13 APPENDIX B BMP DESIGN CRITERIA B.l 2 VEGETATED FILTER STRIPS DESCRIPTION Vegetated filter stiips, also known as vegetated buffer strips, are vegetated sections of land similar to grassed swales, except they are essentially fiat with low slopes, and are designed only to accept runoff overland sheet flow (Schueler, 1992). They may appear in any vegetated fbrm from grassland to forest, and are designed to intercept upstream flow, lower fiow velocity, and spread water out as sheet flow (Schueler, 1992). The dense vegetative cover facilitates conventional pollutant removal through detention, filtration by vegetation, and infilfration into soil (Yu and Kaighn, 1992). Wooded and grass filter strips have slightly higher removal rates. Dissolved nutrient removal for either type of vegetative cover is usually poor, however wooded strips show slightly higher removal due to increased retention and In^ervious surface Wooded cover Figure 1. Conceptual design for a vegetated f3ter strip (Indiana Cbuhty Conservafion District) sequesfration by the plant community (Florida Department of Transportation, 1994). Although an inexpensive confrol measure, they are most useful in contributing watershed areas where peak runoff velocities are low, as they are unable to freat the high flow velocities typically associated with high impervious cover (Banret, gt aJ., 1993). Similar to grassed swales, filter strips can last for 10 to 20 years with proper conditions and regular maintenance. Life expectancy is significantly diminished if unHbmn sheet flow and dense vegetation are not maintained. May 17,2000 B-57 APPENDIX B BMP DESIGN CRITERIA ADVANTAGES 1. Lowers runoff velocity (Schueler, 1987). 2. Slightly reduces runoff volume (Schueler, 1987). 3. Slightiy reduces watershed imperviousness (Schueler, 1987). 4. Slightly contributes to groundwater recharge (Schueler, 1987). 5. Aesthetic benefit of vegetated "open spaces" (Colorado Department of Transportation, 1992). 6. Preserves tiie character of riparian zones, prevents erosion along sfreambanks, and provides excellent urban wildlife habitat (Schueler, 1992). UMITATIONS 1. Filter strips cannot freat high velocity flows, and do not provide enough storage or infilticition to effectively reduce peak discharges to predevelopment levels for design stonns (Schueler, 1992). This lack of quantity control dictates use in rural or low density development 2. Requires slope less tiian 5%. 3. Requires low to fair permeability of natural subsoil. 4. Large land requiremenL 5. Often concentrates water, which significantiy reduces effiactiveness. 6. Pollutant removal is unrefiable in uriDan settings. DESIGN CRITERIA 1. Successful peribrmance of filter strips relies heavily on maintaining shallow unconcenfrated flow (Colorado Departinent of Transportation, 1992). To avoid flow channelization and maintain performance, a fliter strip should: (1) Be equipped with a level spreading device for even distribution of njnoff, (2) Contain dense vegetation with a mix of erosbn resistant, soil binding species, (3) Be graded to a uniform, even and relatively low slope, (4) Laterally traverse tiie contributing runoff area (Schueler, 1987), (5) The area to be used fbr the stiip should be free of gullies or rills that can concentiBte overiand flow (Schueler, 1987), (6) Filters strip should be placed 3 to 4 feet from edge of pavement to accommodate a vegetation free zone (Washington State Department of Transportation, 1995). The top edge of tiie filter stiip along tiie pavement should be designed to avoid tiie sitijation where runoff would tiBvel along the top of tfie filter ship, ratiier tfian tiirough It Dilhalla, et al., (1986) suggest ttiat May 17,2000 B-58 APPENDIX B BMP DESIGN CRITERIA berms be placed at 50 to 100 feet intervals perpendicular to the top edge of tfie stiip to prevent runoff from bypassing it (as cited in Washington State Departinent of Transportation, 1995), (7) Top edge of the filter stiip should follow the same elevational contour. If a section of the edge of tiie strip dips below tiie contour, runoff will tend to forni a channel toward tiie low spot, (8) Filter sfrips should be landscaped after otfier portions of the project are completed (Washington State Departinent of Transportation, 1995). However, level spreaders and strips used as sediment conti-ol measures during the constiijcbon phase can be converted to permanent confrols if they can be regraded and reseeded to tiie top edge of the stiip. 2. Filterstrips can be used on an upgradientfrom watercourses, wetiands, orotherwater bodies, along toes and tops of slopes, and at outiets of other stormwater management stiiictojres(Bouti*ette and Duem'ng, 1994). Theyshould be incorporated into sfreet drainage and master drainage planning (Urtjonas, 1992). The most important criteria for selection and use of this BMP are soils, space, and slope, where: (1) So//s and moisture are adequate to grow relatively dense vegetative stands. Underiying soils should be of low pemneability so that tiie majority of the applied water discharges as surtace runoff. The range of desirable pemieability is between 0.06 to 0.6 inches/hour (Homer, 1985). Common soil textijral classes are clay, day bam, and silty clay. The presence of day and organic matter in soils improves tiie ability of filter stiips to remove pollutants from tiie surface runoff (Schueler, 1992). Greater removal of soluble pollutants can be achieved where the water table is wittiin 3 feet of the surface (i.e., witiiin ttie root zone) (Schueler, 1992). Filter strips function most effectively where tfie climate permits year-round dense vegetati'on. They are not recommended in arid regions where vegetation in upland areas is sparse. (2) Sufficient space is available. Because filter strip effectiveness depends on having an evenly distiibuted sheet flow, tfie size of tiie contributing area and tiie associated volume runoff have to be limited (Urbonas, 1992). To prevent concenfrated flows from forming, it is advisable to have each filter stiip serve a contiibuting area of five acres or less (Schueler, 1987). When used alone, filter stiip application is in areas where impervious cover is low to moderate and where there are small fluctuations in peak flow. (3) Longitudinal slope is five percent or less. When filter stiips are used on steep or unstable slopes, tiie formation of rills and gullies can disrupt sheet flow (Urtx>nas, 1992). As a result filter strips will not function at all on slopes greater tfian 15 percent and may have reduced effectiveness on slopes May 17.2000 B-59 APPENDIX B BMP DESIGN CRITERIA between 6 to 15 percent The design should be based on tfie same metiiods detailed for swales. The preferred geometiy of a filter stiip is rectangular, and tiiis should be used when applying tiie design procedures of vegetated swales. When using this procedure, tiie following provisions apply specifically to filter stiips (Homer, 1993): 6. (2) (3) (4) (5) (6) (7) (1) Slopes should be no greater tiian 15 percent and should preferably be lower tiian 5 percent, and be unifonn tiiroughout tfie strip after final grading. Hydraulic residence time normally no less than 9 minutes, and in no case less tiian 5 minutes. Average velocity no greater tiian 0.9 feet/second. Manning's friction factor (n) of 0.02 should be used for grassed stiips, n of 0,024 if stiip is infiTequently mowed, or a selected higher value if tiie stiip is wooded. The widtii should be no greaterthan that where a uniform flow distiibution can be assured. Average deptii of flow (design deptii) should be no more tiian 0.5 inches. Hydraulic radius Is taken to be equal to the design flow deptii. niter stiips fiinction best witii longitijdinal slopes less than 10 percent, and ideally less tiian5 percent As filter stiip lengtii becomes shorter, slope becomes more influential. Therefore, when a minimum stiip lengtii of 20 feet is utilized, slopes should be graded as close to zero as drainage permits (Schueler, 1987). Witii steeper slopes, terradng tiirough using landscape timber, concrete weirs, or otiier means may be required to maintain sheet flow. Calculate tfie flow rate of stormwater to be mitigated by tiie vegetated filter stiip using tfie Los Angeles County Departinent of Public Works Method for Calculating Standard Urban Stomiwater Mifigation Plan (SUSMP) Flow Rates and Volumes Based on 0.75-inches of Rainfall. A minimum of 8 feet Is recommended for filter stiip widtfi. Anotfier design issue Is runoff collection and distribution to the strip, and release to a tiansport system or receiving water (Homer, 1985). Flow spreader devices should be used to infroduce tiie flow evenly to tfie filter stiip (Urbonas, 1992). ConcentiBted flow needs to use a level spreader to evenly distribute flow onto a stiip. There are many altemative spreader devices, with the main consideration being tiiat tiie overiand flow spreader be distiibuted equally across tiie stiip. Levei spreader options indude porous pavement stiips, stabilized tijrfstrips, slotted curbing, rock-filled french, concrete sills, or plastic-lined trench tiiat ads as a small detention pond (Yu and Kaighn, 1992). The outflow and filter side lip of tfie spreader should have a zenD slope May 17,2000 B-60 APPENDIX B BMP DESIGN CRITERIA to ensure even runoff distiibution (Yu and Kaighn, 1992). Once in tfie filter stiip, most runoff from significant events will not be infiltiBted and will require a collection and conveyance system. Grass-lined swales are often used for this purpose and can provide another BMP level. A filter sfrip can also drain toa storm sewer or street gutter (Urtx>nas, 1992). Pavement Area - Maximum Unit Uydiaidic \ Levd Spreader Loading dunng 2-year (designs indnde giavel trendies, sills. Storm=0.005 w^/sJm embedded cmbs, modular parous pavement, and stabilized tmf strip) Note: Not to Scale Figure 2. Sample filter strip design (UritK)nas, 1992). 8. Filter stiips should be constructed of dense, soil-binding deep-rooted water-resistant plants. For grassed filter stiips, dense turf is needed to promote sedimentation and entiBpment, and to proted against erosion (Yu^nd Kaighn, 1992). Turfgrass should be maintained to a blade height of 2 to 4 inches. Most engineered, sheet-flow systems are seeded wrtii specific grasses. Common grasses established for fliter stiip systems are rye, fescue, reed canary, and Bermuda (Homer, 1985). Tall fescue and orchard grasses grow well on slopes and under low nutiient conditions (Homer, 1985). The grass spedes chosen should be appropriate for tiie climatic conditions and maintenance criteria fbr each project 9. Trees and woody vegetation have been shown to increase infiltiBtion and improve perfbnnance of filter stiips. Trees and shrubs provide many stormwater management benefits by intercepting some rainfall before it reaches tfie ground, and improving infilfration and retention tiirough tiie presence of a spongy, organic layer of materials tfiat accumulates undemeatfi tfie plants (Schueler, 1987). As discussed previously May 17.2000 B-61 APPENDIX B BMP DESIGN CRITERIA in this section, wooded stiips have shown significant increases in pollutant removal over grass strips. Maintenance for wooded strips is virtually non-existent, another argument for using frees and shrubs. However, tiiere are drawbacks to using woody plants. Since the density of the vegetation is not as great as a turf grass cover, wooded filter strips need additional lengtii to accommodate more vegetation. In addition, shrub and free tiunks can cause uneven distribution of sheet flow, and increase the possibility for development of gullies and channels. Consequentiy, wooded stiips require flatter slopes tiian a typical grass cover stiip to ensure that tiie presence of heavier plant stems will not fadlitate channelization. REFERENCES 6. M. E. Ban-et, R. D. Zuber, E. R. Collins, J. F. Malina, R. J. ChariDeneau, and G. H. Ward, 1993. A Review and Evaluation of Literature Pertaining to the Quantity and Control of Pollution fiPom Highway Runoff and Construction, Center for Research in Water Resources, Bureau of Engineering Research, University of Texas at Austin, Austin, TX. L. N. Boutiette and C. L. Duerring, 1994. Massachusetts Nonpoint Source Management Manual, The Megamanual: A Guidance Document for Municipal Officials, Massachusetts Departinent of Environmental Protection, Office of Watershed Management, Nonpoint Source Program, Boston, MA. Camp, Dresser and McKee, Inc., Lany Walker Assodates, 1993. Califomia Best Management Practices - Municipal, Califomia State Water Resources Council Board, Alameda, CA. Colorado Department of Transportation, 1992, Erosion Control and Stormwater Quality Guide, Colorado Department of Transportation. DEQ Stonn Water Management Guidelines, Departinent of Environmental Quality, State of Oregon. http://waten^uality.deq.state.or.us/wq/aroundwa/swmgmtQuide.htin Florida Department of Transportation, 1994. Water Quality Impact Evaluation Manual Training, Course No. BT-05-0009, Florida Departinent of Transportation. GKYand Assodates, Inc. June 1996. Evaluation and Management of Highway Runoff Water Quality, Publication No. FHWA-PD-96-032. Prepared for US Departinent of Transportation, Federal Highway Administiation. Washington, DC. May 17,2000 B-62 APPENDIX B BMP DESIGN CRITERIA 8. R. R. Homer, 1993. Biofiltration for Stonn Runoff Water Quality Control, prepared for tfie Washington State Departinent of Ecology, Center for Urban Water Resources Management, University of Washington, Seattie, WA. 9. R. R. Homer, 1985. Highway Runoff Water Quality Research Implementation Manual, Volumes 1 and 2, Federal Highway Aciministration, WA-RD 72.2, Departinent of Civil Engineering, FX-10, University of Washington, Seattie, WA. 10. Indiana County Conservation District Controlling Sediment Pollution from Light Duty Grave/Dirt Roads, U.S. Environmental Protection Agency, Bureau of Land and Water Conservation and Indiana County Conservation Distiict, PA. 11. Low-Impact Development Design Manual, November 1997. Departinent of Environmental Resources, Prince George's County, MD. 12. T. R. Schueler, 1987, Controlling Urban Runoff: A Practical Manual for Planning and Designing Urban BMP^, Departinent of Environmental Programs, Mefropolitan Washington Coundl of Govemments, Washington, DC. 13. T. R. Schueler, P. Kumble, and M. Heraty, 1992. A Cun'ent Assessment of Urban Best Management Pradlces: Techniques for Reducing Nonpoint Source Pollution in the Coastal Zone, Anacostia Research Team, Mefropolitan Washington Coundl of Govemments, Washington, DC. 14. B.R.Urt3onas, J.T.Doerfer, J.Sorenson, J.T.Wuiriman,andT.Fairtey, 1992. Urban Storm Drainage Criteria Manual, Volume 3 - Best Management Practices^ Stomnwater Quality, Urban Drainage and Flood Control Distnct, Denver, CO. 15. Ventura Countywide Stormwater Quality Management Program, Draft BMP BF:. Biofiiters, June 1999. Ventijra, CA. 16. Washington State Departinent of Transportation, 1995. Highway Runoff Manual, Washington State Department of Transportation. 17. S. L. Yu,S. L. Kaighn, 1992. VDOT Manual of Practice for Planning Stormwater Management, Federal Highway Adminlstiration, FHWAA/A-R13, Virginia Department of Transportation Research Council, Chariottesville, VA. May 17.2000 B-63 APPENDIX B BMP DESIGN CRITERIA The following is a known location where a Vegetated Filter Stiip was installed. The design of tfie installed strip in tiie location may vary from what is recommended in this SUSMP due to its specific circumstances. Los Angeles County does not endorse nor wan-anty any design used in tiie location herein. Each individual case may require tiiat ttie design be tailored to perfonn properiy. Installed Location (City/Address) Brand/Manufacturer Owner/Client I-605/SR91 N/A Calbans May 17,2000 B-64 Roof Runoff Controls SD-11 Design Directives El Maximize irfittration El Provide Retention El Slow funoff Minimize impenrious Land Coverage ProNbi Dumping of Improper Materiais El Contain Polutants Collect and Convey Rain Garden Description Various roof runoITcoiilJXjls are available Lo address storm water that drains off rooftops. The objective is to reduce the total volume and rate of runoff from individual lots, and retain the pollutants on site that may be picked up from roofrpg materisJs and atmospheric deposition. Roof runoff controk consist of directing the roof runoff sway from paved areas and midgatii^g flow to the storm drain system through one of several general approaches: cistems or rain barrels; dry wells or infiltration trenches; pop-up emitters, and foundation planting. The first three approaches require the roof runoff to be contained in a gutter and downspout system. Foundation planting provides a vegetated strip under the drip Hne ofthe roof. Approacfi Design of individual lots for single-family homes as well as lots for higher density residential and commercial stmctures should consider site design provisions for containing and infiltrating roof mnoff or directing mof mnoff to vegetative swales or buffer areas. Retained water can be reused for watering gardens, lawns, and trees. Benefits to the environment include reduced demand for potable water used for irrigation, improved stormwater quality, increased groundwater recharge, decreased nmoff volume and peak flows, and decreased flooding potential Suitable Applications Appropriate appHcations include residential, commercial and industrial areas planned for development or redevelopment Design Considerations Designing Neiv Installations Cistems or Rain Barrels One method of addressing roof runoff is to direct roof downspouts to cistems or rain barrels. A cistem is an above ground storage vessel with either a manually operated valve or a permanently open outlet. Roof runoff is temporarily stored and then released for irrigation or infiltration between storms. The number of rain January 2003 California Stonn water BMP Handbook Mew l^vdopment arxi Redevelopment www.cabmpliandbook.com lof 3 SD-11 Roof Runoff Controls barrels needed is a function of the rooftop area. Some low impact developers recommend that every house have at least 2 rain barrels, with a miniTrinm storage capacity of lOOO liters. Roof barrels serve several purposes including mitigating the first flush from the roof which has a high volume, amount of contaminants, and thennal load. Several types of rain barrels £u:e commercial^ available. Consideration must be given to selecting rain barrels that are vector proof and cMdproof In addition, some barrels are designed with a bypass valve that filters out grit and other contaminants and routes overflow to a soak-away pit or rain garden. If the cistem has an operable valve, the valve can be closed to store stomiwater for irrigation or infiltration between stonns. This system requires continual monitoring by the resident or grounds crews, but provides greater flexibility in water storage and metering. If a cistern is provided with an operable valve and water is stored inside for bng periods, the cistem must be covered to prevent mosquitoes from breeding. A cistem system with a permanent^ open outlet can also provide for metering stormwater mnoff. If the cistern outiet is significantly smaller than the size of the downspout inlet (say VA to V2 inch diameter), runoff will build up inside the cistem during storms, and wiU empty out slowly after peak intensities subside. This is a feasible way to mitigate the peak flow increases caused by rooftop impervious land coverage, especially forthe frequent, small storms. Dry lueZZs andIr\fU.tration Trenches Roof downspouts can be directed to dry welk or infiltration trenches. A dry well is constmcted by excavating a hole in the ground and filling it with an open graded aggregate, and allowing the water to fill the dry well and infiltrate after the stoim event. An underground connection from the downspout conveys water into the dry well, allowing it to be stored in the voids. To minimize sedimentation from lateral soil movement, the sides and top ofthe stone storage matrix cjin be vyrrapped in a permeable filter fabric, though the bottom may remain open. A perforated observation pipe can be inserted vertically into the dry well to allow for inspection and maintenance. In practice, dry weUs receiving runoff from single roof downspouts have been successfiil over long periods because they contain very littie sediment. They must be sized according to the amount of rooftop mnoff received, but are typically 4 to 5 feet square, and 2 to 3 feet deep, with a miniTTmTn of 1-foot soil cover over the top (maximum depth of 10 feet). To protect the foundation, dry welk must be set awa^ from the building at least 10 feet. They must be installed in solids that accommodate infiltration. In poorly drained soik, diy wells have very limited feasibility. Infiltration trenches function in a similar manner and would be particularly effective for larger roof areas. An inflltration trench is a long, narrow, rock-filled trench with no outiet that receives stormwater mnoff. These are described under Treatment Controk. Pop-up Drainage Emitter Roof downspouts can be directed to an undei^ground pipe that daylights some distance from the building foundation, releasing the roof nmoff through a pop-np emitter. Similar to a pop-up irrigation head, the emitter only opens when there is fbw from the roof The emitter remains flush to the ground during dry periods, for ease of lawn or landscape maintenance. 2 of 3 California Stomrirater BMP Handbook January 2003 New Development and Redevelopment www.cabmphandbook.com Roof Runoff Controls SD-11 Foundation Planting Landscape planting can be provided around the base to allow increased opportunities for stormwater infiltration and protect the soil from erosion caused by concentrated sheet flow coming off the roof. Foimdation plantings can reduce the physical itnpact of water on the soil and provide a subsurface matrix of roots that encourage infiltration. These plantings must be sturdy enough to tolerate the heavy mnoff sheet flows, and periodic soil saturation. Redeveloping Existing InstaUations Various jurisdictional stormwater management and mitigation plans (SUSMP, WQMP, etc.) define "redevelopmenf" in terms of amounts of additional impervious area, increases in gross floor area and/or exterior constmction, and land disturbing activities with stmctural or impervious sur&ces. The definition of" redevelopment" must be consulted to deteraune whether or not the requirements for new development apply to areas intended for redevelopment. If the definition appHes, the steps outlined under "designing new installations" above should be foUowed. Supplemental Information Examples • City of Ottawa's Water Links Surface -Water Quality Protection Program • City of Toronto Downspout Disconnection Program • City of Boston, MA, Rain Barrel Demonstration Program Otiier Resources Hager, Marty Catherine, Stoimwater, "Low-Impact Devebpment", January/Febmary 2003. wvyw.stonnh20.com Low Impact Urban Design Took, Low Impact Devetopment Design Center, Beltsville, MD. www.M-stormwater. net Start atthe Source, Bay Area Stormwater Management Agencies Association, 1999 Edition January 2003 Califomia Stoimwater BMP Handbook New Devdopment and Redevelopnnent www.cabmphandfxx>k.com 3of 3 ATTACHMENT "C" NPDDS Permit "Lite" tor the JNon-iecnmcai Keaaer HPDES PERMI ft FOR THE 'NON-TECHNICAL' READER Thanks to the Santa Monica Restoration Bay Project, the National Pollutant Discharge Elimination Systems document was translated into easy to understand languager ABOUT URBAN AND STORM WATER RUNOFF... Urban and storm water runoff is a serious concem, in both dry and rainy season, it is contaminated with pesticides, fertilizers, animal droppings, trash, food wastes, automotive byproducts and other toxic substances that are part of our urban environment Waters that flow over streets, parking lots, consbuction sites and industrial fecillties carry these pollutants through a 5,000-mile storm drain network directly to the lakes, streams and beaches of Southern Califomia. Urban mnoff is the largest source of unregulated pollution to the watenways and coastal areas ofthe United States. Locally, we see the impacts in increased heaith rislcs to swimmers near storm drains, high concentrations of toxic metals in harbor and ocean sediments, and toxicity to aquatic life. These impacts translate into losses to the County's $2 billion a year tourism economy, loss of recreational resource, dramatic cost increases for cleaning up contaminated sediments and Impaired function and vitality of our natural resources. HISTORY The Clean Water Act of 1987 established requirements for stonn water discharges under tiie National Pollutant Discharge Elimination System NPDES) program, in response to those requirements, the State of Califomia issued a five-year pemnit for municipal storm water discharges to Los Angeles County in June 1990. The 1990 pennit was very general in nature, resulting in storm water programs that varied widely from city to city. The 1996 permit, a reissuance of the 1990 permit, therefore seeks to provide better direction by specifying actions needed to comply with permit requirements. This permit is the result of one and a half years of discussions between representatives of the Los Angeies Regional Water Quality Control Board (Regional Board), Los Angeles County, the City of Los Angeles, three smaller cities, and the environmental community. It also Incorporates extensive comments received from aii interested parties on two earlier drafts. GOALS OF THE MUNICIPAL STORM WATER PERMIT • To attain and protect the beneficial uses of water bodies In Los Angeles County; • To reduce pollutants in stomnwater to the maximum extent practicable; and http://www.Iastormwater.org/pages/npdeslit.htm 5/13/( MPUjb^j Pemut "l^ite" tor me JNon-1 ecnmcai Keaaer rage z oi ^ • To evaluate compiiance with the objectives and requirements contained in tiie permit REQUIREMENTS OF THE STORM WATER MANAGEMENT PROGRAM In general, the permit requires implementation of both the Storm Water Management Program contained In the permit, the elements of the Countywide Stormwater Management Plan (CSWMP) or Watershed Management Area Plans (WMAP) tiiat will be developed pursuant to the permit. The Countywide Stonn Water Management Plan and Water Management Area Plans Much of the pennit details the Stonn Water Management Program elements and "whaf should be induded In the CSWMP. Developing the specified program elements will require that Permittees determine "how" actions will be Implemented. Program elements, once developed, will then be compiled Into the unified implementation plan Icnown as the CSWMP. The Watershed Management Area Plans are to be devdoped later in the pennit cycle. They are based on the requirements of the pennit and tiie CSWMP, but will also indude actions tiiat address water quaiity problems and concems that are unique to the six watershed areas of Los Angeles County. Once developed and approved, the WMAP superceded the CSWMP. The storm water management program is comprised of seven elements, the objectives of which are to: 1. Effectively manage and coordinate implementation of the storm water program; 2. Identify and eliminate Illicit connections and Illicit discharges to the storm drain system; 3. Reduce storm water impacts associated with development and redevelopment projects; 4. Reduce storm water quaiity impacts associated with public agency activities; 5. Increase public knowledge about the Impacts of storm water poiiution and about actions that can be taken to prevent pollution. 6. increase knowiedge and understanding about the quaiity, quantity, sources, and Impacts of urban runoff; and 7. Evaluate the effectiveness of implementing storm water management programs. http://www.Iastormwater.org/pages/npdeslit.htm 5/13/( ATTACHMENT "D" GENERAL CATACJORIES FOR WATER POLLUTION Urban runoff from a developed site has the potential to contribute pollutants, including oil and grease, suspended solids, metak, gasoline, pesticides, and pathogens to the storm water conveyance system and receiving waters. For the purposes of identifying pollutants of concem and associated storm water BMPs, pollutants are grouped in nine general categories as follows: 1. Sediments -Sediments are soik or other surficial materiak eroded and then transported or deposited by the action of wind, water, ice, or gravity. Sediments can increase turbidity, clog fish gilk, reduce spawning habitat, lower young aquatic organisms survival mtes, smother bottom dwelling orgamsms, and suppress aquatic vegetation growth. 2. Nutrients- Nutrients are inorganic substances, such as nitrogen and phosphorus. They commonly exist in the form of mineral salts that are either dksolved or suspended in water. Primary sources of nutrients in urban runoff are fertilizers and eroded soik. Excessive dkcharge of nutrients to water bodies and streams can cause excessive aquatic algae and plant growth. Such excessive production, referred to as cultural eutrophication, may lead to excessive decay of organic matter in the water body, loss of oxygen in the water, release of toxins in sediment, and the eventual death of aquatic orgamsms. 3. Metals -Metak are raw material components in non-metal products such as fuek, adhesives, paints, and other coatings. Primary source of metal pollution in storm water are typically commercially available metak and metal products. Metak of concem include cadmium, chromium, copper, lea4 mercury, and zinc. Lead and chromium have been used as corrosion inhibitors in primer coatings and cooling tower systems. At low concentrations naturally occurring in soil, metak are not toxic. However, at higher conc^trations, certain metak can be toxic to aquaticlife. Humans can be impacted from contaminated groundwater resources, and bioaccumulation of metak in fish and shellfish Environmental concems, regarding the potential for release of metals to the environment, have already led to restricted metal usage in certain applications. 4. Organic Compounds -Organic compounds are carbon-based. Commercially available or naturally occurring organic confounds are found in pesticides, solvents, and hydrocarbons. Organic confounds can, at certain concentrations, indirectly or directly constitute a hazard to life or health. When rinsing off objects, toxic levek of solvents and cleaning compoimds can be dkcharged to storm drains. Dirt, grease, and grime retained in the cleaning fluid or rinse water may also adsorb levek of organic conpounds that are harmfiil or hazardous to aquatic life. 5. Trash & Debris -Trash (such as paper, plastic, polystyrene packing foam, and aluminum materiak) and biodegradable organic matter (such as leaves, grass cuttings, and food waste) are general waste products on the landscape. The presence of trash & debrk may have a significant intact on the recreational value of a water body and aquatic habitat Excess organic matter can create a high biochemical oxygen demand in a stream and thereby lower its water quality. Ako, in areas where stagnant water exists, the presence of excess organic matter can promote septic conditions resulting in the growth of undesirable organisms and the release of odorous and hazardous compounds such as hydrogen sulfide. 6. Oxygen-Demanding Substances - Thk category includes biodegradable organic material as well as chemicak that react with dksolved oxygen in water to form other conq)ounds. Proteins, carbohydrates, and fets are examphs of biodegradable organic compounds. Confounds such as ammonia and hydrogen sulfide are examples of oxygen-demanding compounds. The oxygen demand of a substance can lead to depletion of dksolved oxygen in a water body and possibly the development of septic conditions. 7. Oil and Grease - Oil and grease are characterized as high-molecular weight organic compounds. Primary sources of oU and grease are petroleum hydrocarbon products, motor products from leaking vehicles, esters, oik, fets, waxes, and highmolecular-weight fettyacids. Introduction of these pollutants to the water bodies are very possible due to the wide uses and applications of some of these products in municipal, residential, commercial, industrial, and constmction areas. Elevated oil and grease content can decrease the aesthetic value of the water body, as well as the water quality. 8. Bacteria and Viruses - Bacteria and viruses are ubiquitous microorganisms that thrive under certain environmental conditions. Their proliferation k typically caused by the transport of animal or human fecal wastes from the watershed. Water, containing excessive bacteria and viruses can alter the aquatic habitat and create a harmfiil environment for humans and aquatic life. Ako, the decomposition of excess organic waste causes increased growth of undesirable orgamsms in the water. 9. Pesticides - Pesticides (including herbicides) are chemical compounds commonly used to control nuisance growth or prevalence of orgamsms. Excessive application of a pesticide may result in runoff containing toxic levek of its active component. ATTACHMENT "E" Nonpoint Source Pollution: The Nation's Largest Water Quality Problem Page 1 of 3 Pointer No. 1 EPA841-F-96-004A Three Leading Sources of Wate r Qual ity Im pai rm ent Nonpoint Source Pollution: The Nation's Largest Water Quality Problem Why k there still water that's too dirty for swimming, fishing or drinking? Why are native species of plants and animak dkappearing from many rivers, lakes, and coastal waters? The United States has made tremendous advances in the past 25 years to clean up the aquatic enviromnent by controlling pollution from industries and sewage treatment plants. Unfortunately, we did not do enough to control pollution from difiuse, or nonpoint, sources. Today, nonpoint source (NPS) pollution remains the Nation's largest source of water quality problems. It's the main reason that approximately 40 percent of our surveyed rivers, lakes, and estuaries are not clean enough to meet basic uses such as fishing or swimming. NPS pollution occurs when rainfall, snowmelt, or irrigation runs over land or through the ground, picks up pollutants, and deposits them into rivers, lakes, and coastal waters or introduces them into ground water. Imagine the path taken by a drop of rain from the time it hits the ground to when it reaches a river, ground water, or the ocean. Any pollutant it picks up on its joumey can become part ofthe NPS problem NPS pollution ako includes adverse changes to the vegetation, shape, and flow of streams and other aquatic systems. NPS pollution k widespread becatise it can occur any time activities disturb the land or water. Agriculture, forestry, grazing, septic systems, recreational boating, urban runoff, constmction, physical changes to stream channek, and habitat degradation are potential sources of NPS pollution. Careless or uninformed household management ako contributes to NPS pollution problems. The latest National Water Quality Inventory indicates that agriculture k the leading contributor to water quality impairments, degrading 60 percent of the impaired river miles and half of the impaired lake acreage surveyed by states, territories, and tribes. Runoff from urban areas k the largest source of water quality impairments to surveyed estuaries (areas near the coast where seawater mixes with freshwater). The most common NPS pollutants are sediment and nutrients. These wash into water bodies from agricultural land, small and medium-sized animal feeding operations, constmction sites, and other areas of disturbance. Other common NPS pollutants include pesticides, pathogens (bacteria and viruses), salts, oil, grease, toxic chemicak, and heavy metak. Beach closures, destroyed habitat, unsafe drinking water, fish kilk, and many other severe environmental and human health problems result from NPS pollutants. The pollutants ako min the beauty of healthy, clean water habitats. Each year the United States spends millions of dollars to restore and protect the areas damaged by NPS pollutants. Rank Rivers Lakes Estuaries 1 Agri oul tLire Agriculiurs Urtian njnoff Mjnicsipal AAjreoipal Muni oi pal 2 point point point aoLiroee aouroea BouroeB Stream/ 3 hatsitat Urbsi runotf Agri CLd tuna d-iangea Soum: Vifatsr national X^ltjlnventorf 199i NPS pollution occurs when water runs over land or tiirough the ground, picks up pollutants, and deposits them in surface waters or introduces them into groundwater http://www.epa.gov/OWOW/NPS/facts/pointl .htm 9/27/01 Nonpoint Source Poiiution: lhe Nation's Largest Water Quality Problem Page 2 of 3 Progress During the last 10 years, our country has made significant headway in addressing NPS pollution. At the federal level, recent NPS control programs include the Nonpoint Source Management Program estabhshed by the 1987 Clean Water Act Amendments, and the Coastal Nonpoint Pollution Program established by the 1990 Coastal Zone Act Reauthorization Amendments. Other recent federal programs, as well as state, territorial, tribal and local programs ako tackle NPS problems. In addition, public and private groups have developed and used pollution prevention and pollution reduction initiatives and NPS pollution controk, known as management measures, to clean up our water efficiently. Water quality monitoring and environmental education activities supported by govemment agencies, tribes, industry, volunteer groups^ and schook have provided information about NPS pollution and have helped to determine the effectiveness of management techniques. Ako, use of the watershed approach has helped communities address water quality problems caused by NPS pollution. The watershed approach looks at not only a water body but ako the entire area that drains into it. Thk allows communities to focus resources on a watersheds most serious environmental problems—which, in many instances, are caused by NPS pollution. Just as important, more citizens are practicing water conservation and participating in stream walks, beach cleanups, and other environmental activities sponsored by community-based organizations. By helping out ki such efforts, citizens address the Nation's largest water quality problem, and ensure that even more of our rivers, lakes, and coastal waters become safe for swimming, fkhing, drinking, and aquatic life. RELATED PUBLICATIONS Additional feet sheets in the Nonpoint Pointers series (EPA-841-F-96-004) Watershed Approach Framework (EPA840-S-96-001) EPA Journal, VoL 17, No. 5, Nov/Dec 1991, (EPA-22K-1005) Managing Nonpoint Source Pollution: Final Report to Congress on Section 319 of the Clean Water Act (EPA-506/9-90) NPS News-Notes (EPA-84l-N-92-003) PoUuted (EPA-841-F-94-005) The Oualitv of Our Nation's Water: 1994 (EPA-841-S-95-004) The Watershed Protection Approach (EPA-503/9-92/002) To order any of the above EPA documents call or fax the National Service Center for Environmental Publications. Tel (513) 489-8190 http://www.epa.gov/OWOW/NPS/facts/pointl .htm 9/27/01 Nonpomt Source rouution: ine JNations i^argest water i^uaiiiy rrooiem rage J oi Fax (513) 489-8695 FOR MORE INFORMATION U.S. Environmental Protection Agency Nonpoint Source Control Branch Washington DC 20460 OfSce of Wetlands. Oceans & Watersheds Home 1 Watershed Protection Home EPA Home | OfSce of Water | Search | Comments | Contacts Revised: 04/10/2001 07:12:01 http://www.epa.gov/OWOW/NPS/fects/pointl.htm http://www.epa.gov/OWOW/NPS/fects/pointl .htm 9/27/01 Opportunities tor l:'ublic involvement m iNonpomi source uonu-oi ra.gc 1 Ui J Pointer No. 2 EPA841-F-96-004B Did you know that volunteers often coUect information on the health of water- ways and the extent of NPS pollution? Opportunities for Public Involvement in Nonpoint Source Control- Over the last 25 years, communities have played an important role in addressing nonpoint source (NPS) pollution, the Nation's leading source of water quality problems. When coordinated with federal, state, and local environmental programs and initiatives, community-based NPS control efforts can be highly successfiiL To Ieam about and help control NPS pollution, contact the community-based organizations and environmental agencies in your area. These groups often have information about how citizens can get involved in the following types of NPS control activities. Hm.' ^ Volunteer Monitoring Local groups organize volunteers of all skill levels to gather water quality data. Thk infonnation can help govemment agencies understand the magnitude of NPS pollution. More than 500 active volunteer monitoring groups currently operate throughout the United States. Monitoring groups may ako have information about other NPS pollution projects, such as beach cleanups, stream walks, and restoration activities. NPS pollution occurs when waler runs over land or through the ground, picks up pollutants, and deposits them in surface waters or introduces them into groundwater Ecological Restoration Ecological restoration provides opportunities for the public to help out with a v^de variety of projects, such as tree planting and bank stabilization in both urban and rural areas. Restoration efforts focus on degraded waters or habitats that have significant economic or ecological value. Educational Activities Teachers can integrate NPS pollution curricula into their classroom activities. The U.S. Enviromnental Protection Agency (EPA), federal and state agencies, private groups, and nonprofit organizations offer teachers a wide variety of materiak. Students can start on an NPS control project in the primary grades and carry their work through to the intermediate and secondary levek. Water Conservation Using technologies that limit water use in the bathroom, kitchen, laundry room, lawn, driveway, and garden can reduce the demand on existing water supplies and limit the amount of water runoff. More than 40 states now have some type of water conservation program to help citizens and businesses implement conservation practices. Govemment agencies, utilities, and hardware stores have information about different products that help households conserve water. http://www.epa.gov/OWOW/NPS/facts/point2.htm 9/27/01 upportumties ior ruDiic mvoivemem m iNonpomi source uoniroi rage z oi J Household Management Learning to limit NPS pollution at the household level can reduce the overall impacts of NPS pollution on water quality. Households, for example, can irrigate during cooler hours of the day, liinit fertilizer apphcations to kwns and gardens, and properly store chemicak to reduce runoff and keep runoff clean. Chemicals and oil should not be poured into sewers, where they can result in major water quality problems. Pet wastes, a sigmficant source of nutrient contamination, should be dkposed of properly. Households can also replace impervious surfaces with more porous materiak. Public Meetings and Hearings Deckions made during public hearings on stormwater pennitting and town planning can determine a communitys capability to manage NPS pollution over the long term Laws or regulations may require federal, state, or local agencies to hold pubhc hearings when permits are ksued or when town plans are formed. Notices about hearings ofi:en appear in the newspaper or ill govemment office buildings. Community Organizations Many communities have formed groups to protect local natural resources. These community-based groups provide citizens with information about upcoming environmental events in their watershed, such as ecological restoration, volunteer monitorkig, and public meetings. Watershed-level associations are particularly effective at addressing a wide range of NPS pollution problems. Environmental Information on the Intemet Citizens can obtain a tremendous amount of environmental data and educational material with a computer linked to the World Wide Web. EPA's site (http://www.epa.gov) on the World Wide Web provides up-to-date information on Agency activities and enables citizens to find out about air and water quality data in specific communities. EPA supports NPSINFO, a forum for dkcussion of NPS ksues, including NPS education. Citizens with access to e-mail can subscribe to NPSINFO free of charge by sending an e-mail message to: Iistserver@unixmaiLrtpnc.epa.gov and include in the body of the message: subscribe OTSINFO (your first name) (your last name) Other federal, state, tribal, and local agencies, as well as businesses and nonprofit groups, also provide environmental information on the World Wide Web. RELATED PUBLICATIONS Additional feet sheets in the Nonpoint Pointers series (EPA-841-F-96-004) Clean Water in Your Watershed, Terrene Institute, Washington, DC, 1993 http://www.epa.gov/OWOW/NPS/facts/point2.htm 9/27/01 Upportumties tor ruDiic involvement m iNonpomt source control rage J or J Cleaner Water Through Conservation (EPA-84l-B-95-002) Compendium of Educational Materiak on the Water Enviromnent, Alliance for Environmental Ed., Inc., Marshall, VA, 1992 EPA Journal, VoL 17, No. 5, Nov/Dec 1991, (EPA-22k-1005) Environmental Resource Guide, Nonpoint Source Pollution Prevention, Air & Waste Management Assoc., Pittsburgh, PA Handle With Care, Tenene Institute, Washington, DC, 1991 National Directory of Volunteer Environmental Monitoring Programs (EPA-84 l-B-94-001) The Oualitv of Our Nation's Water: 1994 (EPA-841-S-95-004) Xeriscape Landscaping (EPA-840-B-93-001) To order any of the above EPA documents, call or fax the National Center for Environmental Publications and Information. Tel (513) 489-8190 Fax (513) 489-8695 FOR MORE INFORMATON U.S. Environmental Protection Agency Nonpoint Source Control Branch Washington DC 20460 0£&ce of Wetlands. Oceans & Watersheds Home I Watershed Protection Home EPA Home | Office of Water | Search | Comments | Contacts Revisod January 21, 1997 URL: http://www.epa.gov/OWOW/NPS/fects/poina.html http://www.epa.gov/0W0W/NPS/facts/point2.htm 9/27/01 ine JNonpoint source ivianagemeni rrogram rage i oi Pointer No* 4 EPA841-F-96-004D series ^ of fact sheets on nonpoint source (NPS) pollution Did you know mat at least 50% of water quality problems in the U,S, resuft from NPS pollution? The Nonpoint Source Management Program The Clean Water Act of 1972 helped clean up of many of our country's waters, often achieving dramatic improvements. Despite those successes, approximately 36 percent of the Nation's surveyed river ^ miles, 37 percent of its surveyed lake acreage, and 37 percent of its surveyed estuarine square miles are not safe for basic uses such as ^ swimming or fishing. States, territories, and tribes estimate that at least half of these in^airments, as well as significant ground water contamination, are caused by nonpoint source (NPS) pollution, making it the Nation's leading source of water quality problems. To address these problems. Congress amended the Clean Water Act in 1987. Congress estabhshed the NPS Pollution Management Program under section 319 of the amendments. The program provides states, territories, and tribes with grants to implement NPS pollution controk described in approved NPS pollution management programs. NPS pollution occurs when waler runs over land or through the5round, picks up pollutants, and depoats them in surtace waters or introduces them into groundwater In 1990, the U.S. Environmental Protection Agency (EPA) began awarding grants to states, territories, and tribes with approved programs. By 1991, all 50 states and the territories had received EPA approval; by 1995, 7 tribes ako had received approvaL Since 1990, recipients of 319 grants have directed approximately 40 percent of awarded fimds toward controlhng NPS pollution from agricultural lands. In addition, nearly one-quarter of the money was used for general assistance purposes, including fimding for outreach and technical assktance. Efforts to control runoff from urban sources, septic systems, and constmction also received sigmficant funding under section 319, as did projects to manage wetlands and NPS pollution from forestry, habitat degradation, and changes to stream channek. In 1991, EPA estabhshed the National Monitoring Program to evaluate the effectiveness of NPS pollution control projects. Fourteen state- proposed projects win be evaluated over a 6- to 10-year period. The findings from thk effort will help states, tenitories, and tribes develop more successfiil NPS pollution controls in other watersheds. As of 1995, EPA had awarded states, territories, and tribes $370 milhon under section 319 to implement NPS pollution control. Section 319 Success Stories provides examples of how states, territories, and tribes chose to use section 319 funds. How Section 319 Works Assessment Reports http://www.epa.gov/OWOW/NPS/fects/point4.htm 9/27/01 The Nonpoint Source Management rrogram rage z ui J ALU states, territories, and some tribes have met two basic requirements to be eligible for a section 319 grant, the first of which is to develop and gain EPA approval of a NPS pollution assessment report. In the assessment report, the state, territory, or tribe identifies waters inqjacted or threatened by NPS pollution. The state, territory, or tribe ako describes the categories of NPS pollution, such as agriculture, urban runoff, or forestry, that are causing water quahty. Management Programs To meet the second requirement a state, territory, or tribe must develop and obtain EPA approval of a NPS pollution management program Thk program becomes the framework for controlhng NPS pollution, giv^n the exktmg and potential water quahty problems described in the NPS pollution assessment report. A well-developed management program supports activities with the greatest potential to produce early, demonstrable water quahty results; asskts in the building of long-term institutional capacity to address NPS pollution problems; and encourages strong interagency coordination and ample opportunity for pubhc involvement in the deckion-making process. How to Get Involved The addresses and telephone numbers of state and territory nonpoint source officiak are listed in the Nonpoint Source Water Quality Contacts Directory. These individuak can inform citizens about section 319 program activities in their home state or territory. They can ako let citizens know how to become involved in the periodic updates of section 319 NPS assessments and NPS management programs. RELATED PUBLICATIONS Additional fact sheets in the Nonpoint Pointers series (EPA-841-F-96-004) Managing Nonpoint Source Pollution: Final Report to Congress on Section 319 of the Clean Water Act (EPA-506/9-90) Nonpoint Source Water Quahty Contacts Directory, Conservation Technology Information Center, West Lafayette, Indiana The Oualitv of Our Nation's Water: 1994 (EPA-841-S-95-004') Section 319 National Monitoring Program Projects (EPA-84 l-S-94-006) GSSESJ Section 319 National Monitoring Program: An Overview. Water Quahty Group, North Carolina State University. March 1995 Section 319 Success Stories (EPA-84 l-S-94-004) To order any EPA documents call or fax the National Center for Environmental Pubhcations and Information. Tel (513) 489-8190 http://www.epa.gov/OWOW/NPS/facts/point4.htm 9/27/01 The Nonpoint Source Management Program f^age 3 oi 3 Fax (513) 489-8695 FOR MORE INFORMATION U.S. Environmental Protection Agency Nonpomt Source Control Branch Washington DC 20460 Office of Wetlands. Oceans & Watersheds Home I Watershed Protection Home EPA Home | Office of Water | Search | Comments | Contacts Revised January 21, 1997 URL: http://www.epa.gov/OWOW/NPS/fects/point4.html http://www.epagov/OWOW/NPS/facts/point4.htm 9/27/01 Protecting Coastal waters irom JNonpomi source rouuiion rage 1 UlJ Pointer No. 5 EPA841-F-96-004E Protecting Coastal Waters from Nonpoint Source Pollution Coastal waters provide homes for an amazing anay of plants and animak and are recreational havens for more than 180 milhon vkitors each year. Yet, high levels of pollution prevented people from swimming safely at coastal beaches on more than 12,000 occasions from 1988 through 1994, and the latest National Water Quality Inventory reports that one-thkd of surveyed estuaries (areas near the coast where seawater and freshwater mixing occurs) are damaged. Rapidly increasing population growth and development in coastal regions could be a source of even more coastal water quahty problems in the future. A sigmficant portion of the threats to coastal waters are caused by nonpoint source pollution (NPS). Major sources m coastal waters include agriculture and urban runoff. Other significant sources include faulty septic systems, forestry, marinas and recreational boating, physical changes to stream channek, and habitat degradation, especially the destmction of wetlands and vegetated areas near streams. In 1990, Congress passed the Coastal Zone Act Reauthorization Amendments (CZARA) to tackle the nonpoint source pollution problem m coastal waters. Section 6217 of CZARA requires the 29 states and tenitories with approved Coastal Zone Management Programs to develop Coastal Nonpoint PoUution Control Programs. In its program, a state or temtory describes how it wUl implement nonpoint source poUution controls, known as management measures, that conform with those described in Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters. If these original management measures fail to produce the necessary coastal water quahty improvenients, a state or territory then must implement additional management measures to address remaining water quahty problems. Approved programs wih update and expand upon NPS Management Programs developed under section 319 of the Clean Water Act and Coastal Zone Management Programs developed under section 306 of the Coastal Zone Management Act. The coastal nonpoint program strengthens the links between federal and state/territory coastal zone management and water quality programs in order to enhance efforts to manage land management activities that degrade coastal waters and coastal habitats. State and territorial coastal zone agencies and water quahty agencies have coequal roles, as do the National Oceanic and Atmospheric Administration (NOAA) and the U.S. Environmental Protection Agency (EPA) at the federal level. Coastal Nonpoint Pollution Control Programs In 1995, coastal states and territories submitted their coastal nonpoint programs to EPA and NOAA http://www.epa.gov/OWOW/NPS/facts/point5.htm 9/27/01 Did you know mt by 2010, almost one-half of the U,S, popula- tion will live near coastal waters In regions that make up only 10 pendent of our country s iand areas? MPS pollution occurs when water runs over land or through the ground, picks up pollutants, and deposits them in surface waters or introduces them into groundwater. Protectmg Coastal waters trom Monpomt source rouution rage z oi .5 for review and approval. States and territories are scheduled to implement the first phase of their approved program by 2004 and, if necessary, the second phase by 2009. Approved programs include several key elements, described below. Boundary. The boimdary defines the region where land and water uses have a sigmficant impact on a states or tenitorys coastal waters. It ako includes areas where fiiture land uses reasonably can be expected to impair coastal waters. To define the boundary, a state or territory may choose a region suggested by NOAA or may propose its own boundary based on geologic, hydrologic, and other scientific data Management Measures. The state or territory coastal nonpoint program describes how a state or territory plans to control NPS poUution within the boundary. To help states and tenitories identify appropriate technologies and took, EPA issued Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters. Thk technical guidance describes the best avaikble, economicaUy achievable approaches used to control NPS poUution from the major categories of land management activities that can degrade coastal water quahty. States or territories may elect to implement altemative measurement measures as long as the altemative measures wiU achieve the same environmental results as those described m the guidance. Enforceable Policies and Mechanisms. States and tenitories need to ensure the implementation of the management measures. Mechanisms may include, for example, permit programs, zoning, bad actor laws, enforceable water quahty standards, and general environmental laws and prohibitions. States and territories may ako use voluntary approaches hke economic incentives if they are backed by appropriate regulations. Final Approval and Conditional Approval In certain circumstances, NOAA and EPA may grant a program conditional approval for up to 5 years. Conditional approval provides a state or territory additional time to fiiUy develop its management program while it begins initkl program implementation. Conditional approval would include benchmarks for progress toward eventual fiiU program development and approval. RELATED PUBLICATIONS Additional fact sheets inthe Nonpoint Pointers series (EPA-841-F-96-004) Coastal Nonpoint PoUution Control Program: Program Development and Approval Guidance (EPA- 84 l-B-93-003) Global Marine Biological Diversity, Center for Marine Conservation, Island Press, Washmgton, DC, 1993 Guidance Specifying Management Measures for Sources of Nonpoint PoUution in Coastal Waters (EPA-840-B-92-002) The Oualitv of Our Nation's Water: 1994 rEPA-841-S-95-004) Testing the Waters V: Pohtics and PoUution at US Beaches, Natural Resources Defense Council, June 1995 http://www.epa.gov/OWOW/NPS/fects/point5.htm 9/27/01 Protectmg Coastal waters trom Monpomt source roiiution rage 3 oi ^ To order any EPA documents caU or fax the National Center for Envkonmental Pubhcations and Information. Tel (513) 489-8190 Fax (513) 489-8695 FOR MORE INFORMATION U.S. Environmental Protection Agency Nonpoint Source Control Branch Washington DC 20460 Office of Wetlands. Oceans & Watersheds Home | Watershed Protection Home EPA Home | Office of Water | Search) Comments | Contacts Revised January 21, 1997 URL: http://www.epa.gov/OWOW/NPS/fects/point5.html http://www.epa.gov/OWOW/NPS/facts/point5.htm 9/27/01 iviaiiagmg urocui jviuiuii Pointer No. 7 EPA841-F-96-004G Managing Urban Runoff The most recent National Water Quality Inventory reports that runoff from urban areas k the leading source of in^airments to surveyed estuaries and the third largest source of water quahty impairments to surveyed lakes. In addition, population and development trends indicate that by 2010 more than half of the Nation will hve in coastal towns and cities. Runoff from these rapidly growing urban areas wiU continue to degrade coastal waters. To protect surfece water and ground water quahty, urban development and household activities must be guided by plans that hmit runoff and reduce poUutant loadings. To thk end, communities can address urban water quahty problems on both a local and watershed level and gamer the institutional support to help address urban runoff problems. How Urban Areas Affect Runoff Increased Runoff, The porous and varied tenain of natural landscapes hke forests, wetlands, and grasslands trap rainwater and snowmelt and aUow it to slowly filter into the ground. Runoff tends to reach receiving waters gradually. In contrast, nonporous urban landscapes like roads, bridges, parking lots, and buUdings don't let runoff slowly percolate into the ground. Water remains above the surfece, accumulates, and runs off in large amounts. Cities instaU storm sewer systems that quickly channel thk runoff from roads and other impervious surfaces. Runoff gathers speed once it enters the storm sewer system When it leaves the system and empties into a stream, large volumes of quickly flowkig runoff erode streambanks, damage streamside vegetation, and widen stream channek. In turn, thk wUl result in lower water depths during non-storm periods, higher than normal water levek during wet weather periods, increased sediment loads, and higher water temperatures. Native fish and other aquatic hfe cannot survive in urban streams severely impacted by urban runoff. Increased Pollutant Loads, Urbanization ako increases the variety and amoimt of poUutants transported to receiving waters. Sedunent from development and new constmction; oil, grease, and toxic chemicak from automobUes; nutrients and pesticides from turf inanagement and gardening; viruses and bacteria from failing septic systems; road salts; and heavy metak are examples of poUutants generated in urban areas. Sediments and sohds constitute the largest volume of poUutant loads to receiving waters in urban areas. When runoff enters storm drains, it carries many of these poUutants with it. In older cities, thk poUuted runoff is often released directly into the water without any treatment. Increased poUutant loads can harm fish and wUdhfe populations, kUl native vegetation, foul drinking water supphes, and make http://www.epa.gov/OWOW/NPS/facts/point7.htm 9/27/01 Did you know Uiat because of imper/lous surfaces such as pavement and rooftops, a typical city block gen- erates 9 times more runoff ttian a woodland area of the same size? NPS pollution occurs when water runs overland or through the ground, picks up pollutants, and deposits them in surface waters or introduces them into groundwater. Managmg urban Kunort l'age zoi3 recreational areas unsafe. Point and Nonpoint Distinctions There are two different types of laws that help control urban runoff: one focusing on urban point sources and the other focusing on urban nonpoint sources. Urban point source poUution is addressed by the National PoUution Dkcharge Ehmination System permit program of the Clean Water Act, which regulates stormwater discharges. Urban nonpoint source poUution k covered by nonpoint source management programs developed by states, territories, and tribes under the Clean Water Act. In states and tenitories with coastal zones, programs to protect coastal waters from nonpoint source poUution ako are required by section 6217 of the Coastal Zone Act Reauthorization Amendments. Measures to Manage Urban Runoff Plans for New Development New developments should attempt to maintain the volume of runoff at predevelopment levek by using stmctural controk and poUution prevention strategies. Plans for the management of runoff, sediment, toxics, and nutrients can establkh guidehnes to help achieve both goak. Management plans are designed to protect sensitive ecological areas, minimize land disturbances, and retain natural drauiage and vegetation. Plans for Existing Development ControUing runoff from existing urban areas tends to be relatively expensive compared to managing runoff from new developments. However, existing urban areas can target their urban runoff control projects to make them more economical. Runoff management plans for exkting areas can first identify priority poUutant reduction opportunities, then protect natural areas that help control runoff and finaUy begin ecological restoration and retrofit activities to clean up degraded water bodies. Citizens can help prioritize the clean-up strategies, volunteer to become involved with restoration efforts, and help protect ecologicaUy valuable areas. Plans for Onsite Disposal Systems. The control of nutrient and pathogen loadings to surfece waters can begin with the proper design, mstaUation, and operation of onsite dkposal systems (OSDSs). These septic systems should be situated away from open waters and sensitive resources such as wetlands and floodplains. They should ako be inspected, pumped out, and repaired at regular time intervak. Household maintenance of septic systems can play a large role in preventing excessive system dkcharges. Public Education. Schools can conduct education projects that teach students how to prevent poUution and keep water clean. In addition, educational outreach can target specific enterprises, such as service stations, that have opportunities to control runoff onsite. Many communities have implemented storm drain stencihng programs that dkcourage people from dumping trash directly into storm sewer systems. RELATED PUBLICATIONS Additional fact sheets in the Nonpoint Pointers series (EPA-841-F-96-004) Controlling Nonpoint Source Runoff From Roads. Highways, and Bridges (EPA-84 l-F-95-008a) Developing Successful Runoff Control Programs for Urbanized Areas (EPA-84 l-K-94-003) http://www.epa.gov/OWOW/NPS/facts/point7.htm 9/27/01 Managing Urban Kunotf Page 3 of 3 Economic Benefits of Runoff Controls rEPA-S-95-002) Fundamentak of Urban Runoff Tenene Institute, Washington, DC, 1994 Guidance Specifymg Management Measures for Sources of Nonpomt PoUution in Coastal Waters, Chapter 4 (EPA-840-B-92-002) Stoma Water Fact Sheet (EPA-933-F-94-006) The Oualitv of Our Nation's Water: 1994 (EPA-841-S-95-004) To order any of fhe above EPA docuinents caU or fax the National Center for Environmental Pubhcations and Information. Tel (513) 489-8190 Fax (513) 489-8695 FOR MORE INFORMATION U.S. Environmental Protection Agency Nonpoint Source Control Branch Washington DC 20460 Office of Wetlands. Oceans & Watersheds Home I Watershed Protection Home EPA Home | Office of Water | Search | Comments | Contacts Revised January 21, 1997 URL: http://www.epa.gov/OWOW/NPS/fects/point7.html http://www.epa.gov/OWOW/NPS/facts/pomt7.htm 9/27/01 ATTACHMENT "F" RESOURCES AND REFERENCES STORMWATER BEST MANAGEMENT PRACTICES The following are a list of BMPs may be used to minimize the introduction of pollutants of concem that may result in significant impacts to receiving waters. Otiier BMPs approved by the Copermittee as being equally or more effective in pollutant reduction than comparable BMPs identified below are acceptable. See Appendix B: Suggested Resources for additional sources of infonnation. All BMPs must comply with local zoning and building codes and other applicable regulations. Site Design BMPs Minimizing Impervious Areas • Reduce sidewalk widths • Incorporate landscaped buffer areas between sidewalks and streets. • Design residential stireets for the minimum required pavement widths • Minimize the number of residential street cul-de-sacs and incorporate landscaped areas to reduce their impervious cover. • Use open space development tiiat incorporates smaller lot sizes • Increase building density while decreasing the building footprint • Reduce overall lot imperviousness by promoting altemative driveway surfaces and shared driveways that connect two or more homes together • Reduce overall imperviousness associated witii periling lots by providing compact car spaces, minimizing stall dimensions, incorporating efficient parking lanes, and using pervious materials in spillover parking areas Increase Rainfall Infiltration • Use permeable materials for private sidewalks, driveways, parking lots, and interior roadway surfaces (examples: hybrid lots, parking groves, permeable overflow parking, etc.) • Direct rooftop runoff to pervious areas such as yards, open channels, or vegetated areas, and avoid routing rooftop runoff to the roadway or the urban runoff conveyance system Maximize Rainfall Interception • Maximizing canopy interception and water conservation by preserving existing native trees and shrubs, and planting additional native or drought tolerant trees and large shrubs. Minimize Directiv Connected impervious Areas (DCIAs) FINAL MODEL SUSMP Page 36 of 41 Jointly Developed by San Diego Co-Pemiittees 2/14/02 • Draining rooftops into adjacent landscaping prior to discharging to the storm drain • Draining parking lots into landscape areas co-designed as biofiiti'ation areas • Draining roads, sidewalks, and impervious trails into adjacent landscaping Slope and Channel Protection • Use of natural drainage systems to the maximum extent practicable • Stabilized permanent channel crossings • Planting native or drought tolerant vegetation on slopes • Energy dissipaters, such as riprap, at the outlets of new storm drains, culverts, conduits, or channels that enter unlined channels Maximize Rainfall Interception • Cisterns • Foundation planting Increase Rainfall Infiltration • Dry wells Source Control BMPs • Storm drain system stenciling and signage • Outdoor material and trash storage area designed to reduce or control rainfall runoff • Efficient irrigation system Treatment Control BMPs Biofiiters • Grass swale • Grass strip • Wetiand vegetation swale • Bioretention Detention Basins • Extended/dry detention basin with grass lining • Extended/dry detention basin with impervious lining Infiltration Basins • Infiltration basin • Infilti-ation trench • Porous asphalt • Porous concrete • Porous modular concrete block Page 37 of 41 San Diego Co-Permittees 2/14/02 Wet Ponds and Wetlands • Wet pond (permanent pool) • Constructed wetland Drainage Inserts • Oil/Water separatiDr • Catch basin insert • Storm drain inserts • Catch basin screens Filtration Systems • Media filtration • Sand filtration Hvdrodvnamic Separation Svstems • Swiri Concentrator • Cyclone Separator FINAL MODEL SUSMP page 38 of 41 Jointly Developed by San Diego Co-Pennittees 2/14/02 APPENDIX B SUGGESTED RESOURCES HOW TO GET A COPY Better Site Design: A Handbook for Cfianging Development Rules in Your Community (1998) Presents guidance for different model development altematives. Center for Watershed Protection 8391 Main Street Ellicott City, MD 21043 410-461-8323 www.cwp.org Califbmia Urban runoff Best Management Practices Handbooks (1993) for Construction Activity, Municipal, and Industrial/Commercial Presents a description of a large variety of Structural BMPs, Treatment Control, BMPs and Source Control BMPs Los Angeies County Department of Public Works Cashiers Office 900 S. Fremont Avenue Alhambra, CA 91803 626-458-6959 Caltrans Urban runoff Quality Handt>ook: Planning and Design Staff Guide (Best Inanagement Practices Handbooks (1998) Presents guidance for design of urban runoff BMPs Califomia Department of Transportation P.O. Box 942874 Sacramento, CA 94274-0001 916-653-2975 Design Manual for Use of Bioretention in Stomiwater Management (1993) Presents guidance for designing bioretention faciiities. Prince George's County Watershed Protection Branch 9400 Peppercom Place, Suite 600 Landover, MD 20785 Design of Stormwater Filtering Systems (1996) by IRichard A. Claytor and Thomas R. Schuler Presents detailed engineering guidance on ten different urban runoff-filtering systems. Center for Watershed Protection 8391 Main Street Ellicott City, MD 21043 410461-8323 Deve/opmenf Planning for Stormwater Management, A Manual forthe Standard Urban Stormwater Mitigation Plan (SUSMP), (May 2000) Los Angeles County Department of Public Works httD*y/dDw.co.la.ca.us/eDd/ or httD://www.888cleanLA.com Florida Development Manual: A Guide to Sound Land and Water Management (1988) Presents detailed guidance for designing BMPs Florida Department of the Environment 2600 Blairstone Road, Mali Station 3570 Tallahassee, FL 32399 850-921-9472 Guidance Specifying. Management Measures for Sources of Nonpoint Pollution in Coastal Waters (1993) Report No. EPA-840-B-92-002. Provides an overview of, planning and design considerations, prc^rammatic and regulatory aspects, maintenance considerations, and costs. National Technical Information Service U.S. Department of Commerce Springfield. VA 22161 800-553-6847 Guide for BMP Selection in Urban Developed Areas (lOOl) ASCE Envir. and Water Res. Inst. 1801 Alexander Bell Dr. Reston, VA 20191-4400 (800) 548-2723 FINAL MODEL SUSMP Jointly Developed by San Diego Co-Permittees 2/14/02 Page 39 of 41 SUGGESTED RESOURCES HOW TO GET A COPY Low-Impact Development Design Strategies - An Integrated Design Approacfi (June 1999) Prince George's County, Maryland Department of Environmental Resource Programs and Planning Division 9400 Peppercom Place Largo, Maryland 20774 tittp:lf www. co.pg. md. usI Government/DERI PPDlpg county/Hdmain.fitm Maryland Stormwater Design Manual (1999) Presents guidance for designing urban runoff BMPs Maryland Department of the Environment 2500 Broening Highway Baltimore, MD 21224 410-631-3000 National Stomnwater Best Management Practices (BMP) Database, Version 1.0 Provides data on performance and evaluation of urban runoff BMPs American Society of Civil Engineers 1801 Alexander Bell Drive Reston. VA 20191 703-296-6000 National Stormwater Best Management Practices Database (2001) UriDan Water Resources Research Council of ASCE Wright Water Engineers, inc, (303) 480-1700 Operation, Maintenance and Management of Stomiwater Management (1997) Provides a thorough look at stomi water practices induding, planning and design considerations, programnrjatic and regulatory aspects, maintenance considerations, and coste. Watershed Management institute, Inc. 410 White Oak Drive Crawfordville, FL 32327 850-926-5310 Potential Groundwater Contamination from Intentional and Non-Intentional Stormwater Infiltrafion Report No. EPA/600/R-94/051, USEPA (1994). Preliminary Data Summary of Urban runoff Best Management Practices (August 1999) EPA-821-R-99-012 fittp:llwww. epa. aovlosti stormwater! Reference Guide for Stormwater Best Management Practices (July 2000) City of Los Angeles Urban runoff Management Division 650 South Spring Street, 7* Floor Los Angeles. Califomia 90014 tittoJIwww.lacitv. oral san/swmdl Second Nature: Adapting LA's Landscape for Sustainable Living (1999) by Tree People Detailed discussion of BMP designs presented to conserve water, improve water quality, and achieve flood protection. Tree People 12601 Mullholland Drive Beveriy Hills, CA 90210 (818) 623-4848 Fax (818) 753-4625 Sfart at tfie Source (1999) Detailed discussion of penneable pavements and altemative driveway designs presented. Bay Area Stormwater Management Agencies Association 2101 Webster Street Suite 500 Oakland, CA 510-286-1255 FINAL MODEL SUSMP Jointly Developed by San Diego Co-Permittees 2/14/02 Page 40 Of 41 SUGGESTED RESOURCES HOW TO GET A COPY Stomiwater Management in Washington State (1999) Vols. 1-5 Presents detailed guidance on BMP design for new development and construction. Department of Printing State of Washington Department of Ecology P.O. Box 798 Olympia, WA 98507-0798 360-407-7529 Stormvi/ater, Grading and Drainage Control Code, Seattle Municipal Code Section 22.800-22.808, and Director's Rules, Volumes 1-4. (Ordinance 119965, effective July 5, 2000) City of Seattie Department of IDesign, Construction & Land Use 700 5"^ Avenue, Suite 1900 Seattle, WA 98104-5070 (206) 684-8880 http://www.ci.seattle.wa.us/dclu/Codes/sadccode.h tm Texas Nonpoint Source 8oo/c- Online Module (1998)www.txnDsbook.ora Presente BMP design and guidance infonnation on-line Texas Statewide Urban runoff Quality Task Force North Central Texas Council of Govemments 616 Six Flags Drive Ariington, TX 76005 817-695-9150 The Practice of Watershed Protection by Thomas R. Shchuler and Heather K. Holland Center for Watershed Protection 8391 Main Street Ellicott City. MD 21043 410-461-8323 www.cwD.ora Urban Storm Drainage, Criteria Manual- Volume 3, Best Management Practices (1999) Presents guidance for designing BMPs Urban Drainage and Flood Control District 2480 West 26th Avenue, Suite 156-B Denver, CO 80211 303-455-6277 HNAL MODEL SUSMP Jointly Developed by San Diego Co-Permittees 2/14/02 Page 41 of 41 ATTACHMENT "G" Owner Training Log Date: Storm Water Management Topic: Specific Training Objective: Location: Instmctor: Attendee Rooster: Name Company Phone - Employee Training Log Date: Storm Water Management Topic: Specific Training Objective: Location: Instmctor: AttendeeHooster: Name Company Phone ATTACHMENT "H" GENERAL CONSTRUCTION ACTIYFrY BMP STORM WATER POLLUTION PREVENTION PLAN (SWPPP) for LAGUNA POINT CARLSBAD, CA CITY OF CARLSBAD DWG NO. TBD CITY OF CARLSBAD WORK ORDER NO. TBD Prepared for: Wavecrest Resorts II, L.L.C. 829 Second Street, Suite A Encinitas, CA 92024 Prepared by: Partners Planning and Engineering, Inc. 9988 Hibert Street, Suite 212 Carlsbad, CA 92131 (858) 695-3344 September 28, 2001 RECEiVED OCT 0 9 2001 MOUSING & REDEVELOPMENT ^ DEPARTMENT C:\My Documents\152.10SWP.doc TABLE OF CONTENTS SWPPP INTRODUCTION Storm Water PoUution Prevention Plan (SWPPP) Constmction Site Description Responsible Party SWPPP GENERAL INFORMATION Objectives Implementation Schedule Availability Required Changes Source Identification FIGURE 1: SITEMAP POLLUTANT CONTROL PRACTICES (i) Known Toxic Materials (ii) Practices to Mimmize Contact of Constmction with Storm Water (ui) Constmction Material Loading, Unloading and Access (iv) Preconstmction Control Practices (v) Equipment Storage, Cleaning and Maintenance Areas (vi) Methods of On-site Storage and Disposal of Constmction Material (vu) Nature of FUl Material and Existing SoUs POLLUTANTS OTHER THAN SEDIMENT ON CONSTRUCTION SITES (i) Solvents (ii) Metals (iii) Petroleum Products (iv) Plated Products (V) Asphalt/Concrete (vi) Hazardous Substances (vii) Paints (viii) Treated Wood Products EROSION AND SEDIMENT CONTROL C:\My Docunients\152.10SWP.doc SIZE OF CONSTRUCTION SITE, COEFFICIENT OF RUNOFF. IMPERVIOUS AREA OTHER Non-Storm Water Management Post-constmction Storm Water Management Waste Management and Disposal Maintenance, Inspection and Repair Training List of Contractors/Subcontractors Other Plans Pubhc Access to SWPPP PREPARER OF SWPPP COPY OF NOTICE OF INTENT (NOI) COPY OF STATE WATER RESOURCES CONTROL BOARD, ORDER NO 92-08 DWQ, NPDES GENERAL PERMIT NO CAS000002 APPENDIX Description and Instmctions for Forms Annual Comphance Certificate Amendments to SWPPP Field Maintenance Contact Person Form Inspection Guidelines Inspection Checklist • Visual Inspection • Good Housekeeping • Site Assessment Monitoring Record List of Contractors and Subcontractors Notice of Termination (NOT) PLANS Grading and Erosion Control Plans for Tentative Tract Map CT 01-13, Drawing Number TBD in the City ofCarisbad. C:\My Documents\152.10SWP.doc Constmction Site Description This SWPPP has been prepared for Laguna Point, Tentative Tract Map CT 01-13 in the City of Carisbad. The project consists of approximately 1.10 acres and is located adjacent to Laguna Drive and State Street. Responsible Party Please Contact: Wavecrest Resorts II, L L C. 829 Second Street, Suite A Carisbad, CA 92122 "^^^"^0 ^^^^^ ' ^ C:\My Documents\152.10SWP.doc I I I I I I I I I INTRODUCTION This Storm Water Pollution Prevention Plan (SWPPP) has been prepared for Laguna Point located in the Citv of Carisbad. This SWPPP prorides recommendations and procedures to fiilfiU storm water discharge requirements specified by various federal and state authorities. Site information, description, and responsible parties are provided witMn. Storm Water Pollution Prevention Plan This SWPPP has been prepared in accordance witii the State Water Resources Control Board (SWRCB) Order No. 92-08-DWQ National Pollutant Discharge EUmination System (NPDES) General Pennit No. CAS000002. This SWPPP has been developed and wiU be amended, when necessary, to: • Identify poUutant sowces associated with constraction activity that may affect the quality of the storm water runoff from constniction sites, and • Identify, constract and implement storm water management practices to abate pollutants in storm water discharges from the constraction sites both diuing and after constraction. This SWPPP will be implemented prior to the commencement of constraction activity for new constraction or immediately for ongoing constraction. As stated on the Notice of Intent (NOI), aU conditions of the General Permit wUl be complied witii. A copy ofthe General Permit is included with this SWPPP. The SWPPP shall be kept at the constraction site during constraction activity and will be made available upon request to representatives ofthe Regional Water Quality Control Board (RWQCB). I This SWPPP shaU be amended whenever there is a change in constraction or operations which may affect the quality of the storm water runoff, if it is in violation of or does not meet any condition of the General Permit, or at I the request of the RWQCB or the local municipality (with concurrence from the RWQCB). If a change of ownership occurs, the new owner shall be informed of the provisions of the General Permit and prorided with a copy of this SWPPP for use untU the new owner can develop a SWPPP. This SWPPP, together with all monitoring mformation, reports, and data records for this constmction activity shaU be retamed at the constmction site during constmction and for a period of at least three years following constmction. This retention period may be extended by request of the SWRCB and/or RWQCB. The text shown in blocks within this SWPPP are excerpts from the General Permit; the text which follows each block is a response to the excerpt from that Permit. C:\My Docuinents\152.10SWP.doc Section A: STORM WATER POLLUTION PREVENTION PLAN 1. Obiectives A Stonn Water Pollution Prevention Plan (SWPPP) shall be developed and implemented for each constiuction site covered by this ggieral pennit The SWPPP dial! be certified in accordanoe with the signatory requirements of Standard Provision C.9. Hie SWPP shall be developed and amended, when necessary, to meet the following objectives: a. To identiiy pollutant sources that may affect the quality of discharges of storm water associated with construction activity (storm water discharges) from the construction site, and b. To identiiy, constiuct and implement storm water pollution prevention measures (control practices) to reduce pollutants in storm water disdiarges from the. construction site both during construction and after constiuction is completed. Implementation Schedule a. For construction activity conunencing on and after October 1,1992, the SWPPP must be developed and implemented concurrent with commencement of constiuction activities. b. For construction activity commendng prior to and continuing beyond October 1,1992, the SWPPP must be developed and inplemented by October 1,1992. c. For ongoing construction activity involving a change of ownersh^ of property covered by this general pmnit, the new owner must accept and maintain the existing SWPPP. Availability The SWPPP shall be kept on site during construction activity and made available upon request of a rq>resentative ofthe Regional Water Board and/or local ag^cy. Required Changes a. The discharger shall amend the SWPPP whenever there is a change in constiuction or operations which may afiect the discharge of significant quantities of pollutants to suiface waters, ground waters, or a municq)al separate storm sewer system. The SWPPP should also be amended if it is in violation of any condition ofthis general pennit or has not achieved the general objective of reducing pollutants in storm water discharges. b. TTie Regional Water Board, or local agency with the concurrence of the Regional Water Board, may require the discharger to amend the SWPPP. 5. Source Identification The SWPPP shall provide a descrqition of potential sources which are likdy to add significant quantities of pollutants to storm water discharges or which may resutt in non-storm water discharges from the construction site. The SWPPP shall indude, at a minimum, the following items: C:\My Documents\152.10SWP.doc d. A list of pollutants (other than sediment) that are likely to be present in storm water discharges in significant quantities. Describe the control practices (if different frcm Item 6 below) iq)propriate to reduce these pollutants in the stoim water discharges. Potential pollutants other than sediment associated with construction activity, as specified on the NOI include solvents, metal, petroleum products, plated products, asphalt/oxicrete., hazardous substances, paints, treated wood products and other products typicaUy associated with constmction sites. These materials can be classified into hazardous, sohd, and liquid wastes. Hazardous wastes include solv^ts, metals, petrochemicals (oils, gasoline, asphalt degreaser, etc.) pesticides, (insecticides, fungicides, herbicides, rodaiticides, etc.), and other constmcticn chemicals sudi as ccxicrete products, sealer, paints, and wash water associated with these products. Other wastes include paper, wood, garbage, sanitary wastes, and fertUizer. Practices must be used to prevOTt these pot^tial pollutants from leaving the ccxistmction site. PoUutants such as oUs, waxes, and water-insoluble pesticides, form surfece films on water and sohd particles. Also, oU films serve as a medium for ccaicentrating water- soluble insecticides. Other than by use of very costiy water-treatmait facilities or long runoff water detaiticai periods, these pollutants become nearly impossible to ccmtrol once present in the runoff. The most economical and effective controls for pollutants other than sediment generated on constraction sites, are the exercise of good "housekeeping" practices, and an awareness by construction workers, planners, engineers, and develq)ers of the need and purpose of comphance with federal, state, and local regulaticHis. Procedures must be established to protect ponds, wetlands, lakes, streams from damage by sediment, and other pollutants generated during construction activities. The variety of poUutants and the severity of the damage caused depend upon a number of factors, including: • The nature of the constmction activity. • The physical characteristics of the constructicm site, including weather, time of year for ccmstracticm, tc^ography, soil ccmditions, drainage systems, etc. • The proximity, quantity, and quality of the receiving waters (i.e. the amount and purity of the water receiving the contaminated runoff)- The physical characteristics of the constmction site have a significant inpact on the potential chscharge of poUutants from ccmstmcticm activities. As with sechment, the vast majority of aU pollutants are carried into the receiving waters via storm runoff". The amount of runoff coming from a constmction site is dependent upon hydrologic fectors. These C:\My Documents\152.10SWP.doc include the amount, intensity, and frequMicy of rainfeU; the infikraticm rate of the soU; surfece roughness; and the length and steqjness ofthe ground slope. Large areas vi^ich have been denuded or stripped of vegetation, long slopes, steep slopes, compacted soils, and high int^sity rainfeU are all fectors conducive to increased runoff*. The following informaticm summarizes the nature and ccmtrol of various constmction-relating pollutants, other than sediment. (i) Solvents Constmction activity oft^ uses solvents for de-greasing and cleaning machinery and machinery parts. For rcx)fing activity, residual tars and sealing confounds, spent solvents, kerosene, and soap cleaners may be produced. For sheet metal activity, small quantities of acid and solvent cleaners such as kerosene, metal shavings, adhesive residues and ^amel coatings may be prcxiuced. Solvents which become waste material are classified as dangerous waste. Recommended Control Best Management Practices (BMPs): Solvents and solvent-asscxjiated wastes wiU be stored in ccmtainers. The following practices applyto ccmtainers ^ich are stored outside in a temporary storage area: • Dumpsters used to store items avoiding transfer to a landfiU should be placed in a lean-to stmcture. Dunpsters should be in good ccmditicm without corrosicm or leaking seams. • If waste container drums are kept outside, they must be stored in a lean-to type stracture to prevent rainfeU ccmtact with the drums. • Garbage dunq^sters should be replaced if they are deteriorating to the point where leakage is cxjcurring and should be covered to prevent storm water entering. • Use noncaustic detergents for parts cleaning. • Use detergait-based or water-based cleaning systems in place of organic solvent degreasers. Wash water may require treatment before it c:an he discharged to the sewer. • Replace chlorinated organic solvents (1,1,1-trichloroethane, methylene chloride, etc.) with nonchlorinated solvents. Nonchlorinated solvents, such as kerosene or mineral spirits, are less toxic and less e?q)ensive to dispose of. Check the list of active ingredients to see vvhether it ccmtains chlorinated solvents. (The "chlor" term inchoated that the solvent is chlorinated.) • Choose cleaning agents that can be recycled C:\My Documents\152.10SWP.doc (ii) Metal Various types of metals are used cm a constmction site. Recommended Coatrol BMPs: Where metals are temporarUy stored outside, plastic sheeting should be placed over the stcx;]q)Ue. This material should be stored, vhere possible, cm a paved surfece. Curbing should be placed alcmg the perimeter of the area to prevent the run-oo of unccmtaminated storm water from adjac^ areas, as weU as runoff from the stoclq)ile area. (iii) Petroleum Products Petroleum products are widely used during constmction activities. These products are used as fuels and lubricants for vehicular operations, power tools, and general equipme maintenance. The pollutants include oils; fiiels such as gasoline, chesel oil, and keros^e; lubricating oUs; and grease. Asphalt paving can be a poUutant source as it ccmtinues to release various oils for a ccmsiderable length of time. Most of these pollutants adhere to soil particles and other surfeces easUy. Recommended Control BMPs: One of the best practices of control is to retain sediments containing oU cm the ccmstmction site. SoU erosicm and sedim^t ccmtrol practices can effectively accomphsh this. In:q)roved maintenance and safe storage facilities will reduce the potential for ccmtaminating ccmstmction sites. Oil and oUy wastes such as crankcase oU, cans, rags, and paper drc^ped in oUs and lubricants, can be best disposed of in prefer rec^tacles or recycled. Waste oil for recycling should not be mixed with degreasers, solvents, antifreeze or brake fluid. The dumping of these wastes in sewers amid other drainage channels is illegal and could resulting fines or job shutdown. A further source of these poUutants is leaking vehicles. Prefer maintenance of equipmexA and installaticm of prefer stream crossings wiU fiirther reduce poUuticm by leaking vehicles. Stream crossings should be minimized by the proper plaiming of access roads. Guidelines for storing petroleum prcxlucts arc as follows: • Store products in weather-resistant sheds, vhere possible. • Create shelter around area with cover and wind protection. • Line the storage area with double layer of plastic sheeting or similar material. • Create urpervious berm around the perimeter. • Capacity of bermed area should be 110 perc«it of largest container. • All prcxlucts should be clearly labeled. • Keep tanks off the ground and on wooden pallets. • Keep lids securely festened. C:\My EkxumentsM 52.10SWP.doc • Post information for procedures in case of spills. Perscms trained in hancUing spiUs should be cmsite or cm-caU at aU times. • Materials for cleaning up spUls should be kept cmsite and easUy available. Spills should be cleaned up immechately and the contaminated material properly (hsposed. • Specify a staging area for aU vdiicle maintenance activities. This area should be located away from aU drainage courses. • All storage sheds, duiiq)sters or other storage fecUities should be regularly mcmitored for leaks and rqjaired as necessary. Remind workers during subccmtractor or safety meetings about prefer storage and hancUing of materials. (iv) Plated Products Plated prcxlucts used cm a ccmstmcticm site include galvanized material and other metal plated prcxlucts. Recommended Ccmtrol BMPs: Where plated products are temporarily stored outside, plastic sheeting such as polyethylene, polyurethane, polypropylaie or hypalcm should be used. Curbing should be placed alcmg the perimeter of the area to prevait the run-cm of unccmtaminated storm water from adjacent areas, as weU as runoff* from the stcx;lq>Ue area. (v) Asphalt/Concrete 1 Asphalt Asphalt paving requires dump tmcks, pavers, tack coat tankers and pavement roUers. Storm water passing through near this equipment may be contaminated by petroleum producrts. Storm water from parking area may contain undesirable concentrations of oU and grease, suspended particulates, and metals such as lead, cadmium and zinc. It will also cemtain the organic by-prcxlucts of engine combusticm. Recommaided Ccmtrol BMPs: Source control BMPs such as gcxxl housekeeping should always be used to control storm water pollution. Storm water from parking lots and outside areas should be treated using infiltraticm and/or detenticm or equivalent. I Concrete On constmction sites, concrete may be pumped or transferred from tmcks into the required area (i.e., slab and fcxjting foimdation). Concrete wash water from concrete tracks and mixers is a pollutant. Cem^ (in bags) may be stored cmsite for smaU jobs. C:\My Documents\152.10SWP.doc Recommended Ccmtrol BMPs: The ccmtrol of this poUutant involves gcxxl site planning. Neutralizaticm of this pollutant often provides the best treatm^. Sealing of fractures in the bechcx;k with grout and bentonite will reduce the amount of concrete wash seepage. • Transfer of ccmcrete/cem^ from vdiicles to site should be located so that leaks can be ccmfined in the existing containment. • Place plastic sheeting over stored ccmcrete material. • Store material, vhere possible, cm a paved area sloped in a maimer that niinimizes the pooling of water. • Curbing should be placed alcmg the perimeter of the area to prev«it run-cm of uncontaminated storm water from adjacent areas, as weU as runoff from the stcx;lq)ile area. (vi) Hazardous Substances The most economical amid effective ccmtrols for potential poUutants other than sediment g^erated cm the constmction site, are the exercise of gcxxl housekeeping practices and an awar^ess of the need for comphance with regulatory requirements. The foUowing g^eral procedures are recommnded based cm the substance: I I • Containers should be located in a covered designated area. I « The designated area should be paved, free of cracks arid gaps, and impervious in order to cemtain leaks and spills. • The area inside the curb should slcpe to a drain. If the material being stored is ccmtroUed I by the Uniform Fire Ccxle, or is used oU or dangerous waste, a dead-end sump should be installed. • If roU-ccmtainers are used (i.e., diunpsters) and are picked tip chrectiy by the coUecticm I tmck, a filet can be placed cm both sides of the curb to fecilitate moving the dumpster. • Ccmstmction activity accumulating dangerous wastes that do not cemtain free liquids should be protected from storm water run-cm. Where material is temporarily stored in drums, a containment system can be used. • Drums stored in an area vhere unauthorized persons may gain acx:ess must be secured in a manner that prevents accidental spUlage, pUferage or any unauthorized use. • An employee trained in emergency spill cleanup proc^ures should be presort when dangerous wastes, hquid chemicals or other wastes are loaded or unloaded 1 Pesticides Although the word "pesticide" has come to mean only those chemicals which attack insect pcpulaticms, here the word is used to include herbicides and rcxlenticides, as weU as chemicals C:\My Documents\152.10SWP.doc commonly knovm as pesticides. Insecticides, rodenticides, and herbicides have historically been used on ccmstmcticm sites to increase health and safety, maintain a pleasant envircmmoit, and reduce maintnance and fire hazards. Often, rcxients are attracted to ccmstmcticm sites and rodenticides are used. Pesticides should cmly be used in conjunction with Integrated Pest Management (IPM). IPM utilizes a needs assessment which detennines vhich method to use and the necessity of controlling a pest population. Pesticides should be the tcx>l of last resort; methcxls vhich are the least cUsmptive to the environment and to human health should be used first. Recommended Control BMPs: If pesticides must he used, clearance for use of any of these chemicals is often reqaired by restrictive federal and state regulaticms AU pesticides should be stored and apphed acxxjrdingly. An awareness of the need to adhere to recommended dosages, type of applicaticm equipment, time of application, cleaning of apphcation equipment and safe disposal of these chemicals, wiU go fer in limiting the polluticm of waterways, .^plication rates should ccmform to registered label direction. Many of these confounds are ccmsidered "dangerous wastes" and must be chsposed of properly. Disposal of excess pesticides arid pesticide-related wastes should conform to registered label directions for the disposal and storage of pesticides and pesticide containers set forth in apphcable federal, state and local regulations. General disposal prcx^ures are: • Dispose of through a licensed waste inanagement firm or treatmait, storage, and disposal company (TSD). • Use all or give away to garden c^aiter, landscape service, etc. • Triple-rinse ccmtainers before disposal. Waming signals should be placed ki areas recentiy sprayed or treated with the most dangerous pesticides. Perscms involved in the mixing and application of these chemicals, to be in cx>nq)hance with the law, must wear suitable protective clothing. Other practices include: • Set aside a locked, weather-resistant storage area. • Lids should be tigjbtiy closed. • Keep in a cool, dry place. Many pesticides rapidly lose their efFecrtiveness if stored in areas e?q}Osed to heat. C:\My Documents\152.10SWP.doc I I I I In case of a leak, put original container into a larger container and label it prc^erly. Check ccmtainers pericxhcally for leaks or deterioraticm. Keep a hst of prcxlucts in storage. Use plastic sheeting to line the area. The applicator must foUow the notificaticm requirements of the state. Neighbors cm prc^erties adjacnt to the one being sprayed should also be notified prior to spraying. All storage sheds, dumpsters or erther storage fecilities should be regularly monitored for leaks and repaired as necessary. Remind workers during subccmtractor or safety meetings aboirt proper storage and handling of materials. Nutrient Apphcation and Control Inorganic nutria poUuticm is most oftoi caused by fertUizers used in revegetating graded areas. The use of prefer soU-stabilizaticm measures, sedim^ ccmtrol, and storm water detention stmctures can be effective means of keeping these inaterials out of waterways. Only small amounts of inorganic nutrients are beneficial to the productivity of waterways, while excess amounts result in over-oiriehmort (eutrc^hicaticm). Recoinmended Control BMPs: Nutriart pollution can be minimized by working fertiUzers and liming inaterials into the soU to depths of four-to-six inches, arid by proper timing of the appUcatiem. Hydro-seeding operatiems in vhich seed, fertilizers and lime are apphed to the groimd surfece in a one-sbep operation, are more cemducive to nutrient poUution than are ccmvoitiemal seedbed-pr^aration operations where the fertilizers and lime are tilled into the soil. In the case of surfece dressings, control can be achieved by applying the required quantity of fertilizer in more than cme operaticm. For example, an area requiring an applic^icm of 500 pounds per acre of fertihzer could be dressed with about 125 pounds per acre at four s^arate times over the growing seascm. Use of fertilizers containing httie or no phosphoms may be required by lcx:al authorities if the develc^mCTt is near snsitive water bcxhes. In any ev&A, great care should be taken to use cmly the minimum amount of phosphoms needed, as determined by soil tests or advice from the loc^al Ccmversation District or SoU Ccmservation Service. Importation of topsoU is better than heavily liming and fertilizing e?q}osed subsoU. C:\My Documents\152.10SWP.doc I I I (vii) Paints Painting contractors wiU generate paint and other finishing residues, spent thinners, and paint ccmtainers. Paint is a chemical pollutant containing hazardous metalUc pigments or bicx;ides and is carried by sechment and runoff from ccmstmcticm sites. Recommaided Ccmtrol BMPS: A large percentage of this pollutant can be effectively controlled through implementation of source ccmtrol soil erosion and sedimentaticm ccmtrol practices. As in the case of other poUutants, gcxxl houseke^ing is the most inportant means of controlling poUution. The correct method of waste chsposal varies with the material. Wash-up wastes from water-based paints may go into a sanitary sewer, but wastes from oU-based paints, cleaning solvaits, thinners, and inineral spirits must be chsposed of throug|h a housed waste inanagement firm. Other source ccmtrol BMPs include: • Use tarps and vacuums to collect sohd wastes produced by sanding or painting. Tarps, drip pans or other spiU collection devices should be used to coUect spills of paints, solvents or other hquid materials. These wastes should be disposed of prc>perly to keep them from contaminating storm water. • As littie as 30 percent of the paint may reach the target from conventional airless spray guns; the rest is lost as overspray. Paint sohds from overspray are deposited on the groimd where they can ccmtaminate storm water. Other spray equipment that delivers more paint to the target and less overspray should be used such as: electrostatic spray equipment, air-atomized spray guns, high-volume/low-pressure spray guns, amid gravity-feed guns. (viii) Treated Wood Products This group includes wood products such as cut wood, treated wocxi, and where cutting equipment is employed where the by-products are chips and sawdust. The timber is typically moved by hand after being dq>osited by tmck. Other wastes include wood and paper from packaging and building materials. Recommended Ccmtrol BMPs: The major ccmtrol mechanism for these pollutants is to provide adequate chsposal fecilities. CoUected wood waste should be removed and (hsposed of at authorized chsposal areas. Frequent garbage removal helps maintain constmction sites in a clean and attractive manner. Source ccmtrol BMPs, such as gocxl housekeeping , should always be used to control storm water polluticm. Outside areas vhere treated wood prcxlucts are stored should be loc^ated where storm runoff through the area is minimal. C:\Mv Documents\152.10SWP.doc Where possible, store material on a paved area, which is sloped, so that poohng of water at the site is minimized. Remove and properly dispose of soUs with visible surface contaminants (green soil) to decrease the spread of chemicals to ground water and surface water and take steps to prevent fiiture occunences. Keep treated wood out of areas where surface water drainage is apparent. Curbing can be placed along the perimeter of the area to prevent mn-on of uncontaminated storm water from adjacent areas, as weU as mn-off" fi^om the stockpUe area. C:\My Documents\l 52.1 OS WP.doc I I I I I I 1/ a. A map extending approximately one-quarter mile beyond the property boundaries of the construction site showing: the construction site, surface water tx>djes (Including known springs and wetlands Vl, known wells, an outline of off-site drainage areas that discharge into the construction site, general topography, and the anticipated discharge location(s) where the constructkm site's storm water disctiarges to a municipai stomn sewer or other water body. The requirements of this paragraph may be included in the site map required under the following paragraph if appropriate. The determinatk)n of whether wetlands exist shall tae made by the person who prepares the SWPPP and shall not be binding upon any other person. The constmction site and its immediate sunounding are shown on the attached Site Map (attachment no.l) Note: To the best of our knowledge, there are no known wetlands on this site. b. A site map(s) showing: 1. Location of control practices used during construction; The control practices used during constmction include sediment/erosion control practices. The location and detaUs of these practices are shown on the (jfradmg/Erosion Control/ Landscape Plans for the Laguna Point, City of Carlsbad drawing number TBD. The erosion control practices include temporary desilting basins, temporary berms and hydroseeding. ii. Areas used to store soils and wastes; No areas are currently designated for soU and waste storage. C:\My Documents\152.10SWP.doc iii. Areas of cut and fill Areas of cut and fill are shown on the Grading/Erosion Control/Landscape Plans for Laguna Point, City of Carlsbad drawing number TBD. iv. Drainage pattems and slopes anticipated after major grading activities are completed; Drainage pattems and sloes anticipated after major grading activities are completed, are shown on the Grading/Erosion Control/ Landscape Plans for Laguna Point, City of Carlsbad drawmg number TBD. V. Areas of soil disturbance; Areas of soU disturbance are shown as the areas of cut and fUl on the Grading/Erosion Control/Landscape Plans for Laguna Point, City of Carisbad drawing number TBD. vi. Surface water locations Surface water locations are shown on the SWPPP Site Plan (See attached) vii. Areas of potential soU erosion where control practices wiU be used during constmction; Areas of potential soU erosion where control practices wiU be used during constmction are shown on the Gradmg/Erosion Control/ Landscape Plans for Laguna Point, City of Carlsbad drawmg number TBD. C:\My Documents\152.10SWP.doc viii. Existing and planned paved areas and buildings; The Improvements at Laguna Point wiU include the constmction of multiple Industrial/Office buUdings with the associated parking lots. ix. Locations of post-construction oontrol practices. Post constmction practices shall include revegetation of erodible slopes and fossil filters m all inlets. X An outline of the drainage area for each on-site storm water dischar^ point; The drainage area for the on-site storm water discharge points are shown on the Grading/Erosion Control/Landscape Plans for Laguna Point, City of Carlsbad drawing number TBD. xi. Vehicle storage and service areas; and There will be areas designated for vehicle storage or service. These areas must be identified by the contractor during constmction. xli. Area, of existing vegetation. Existmg vegetation and landscaping wiU be either protected in place of removed and replaced per the Grading/Erosion Control/ Landscape Plans for Laguna Point, City of Carlsbad drawing number TBD. C:\My Docunients\152.I0SWP.doc I I I I I I c. A narrative desaiption ofthe following- i. Toxic materials that are known to have been treated, stored, di^osed, filled, or leaked in significant quantities onto the construction sit^. Neither Partners Planning and Engineering, Inc or Laguna Point are aware of any significant quantities of toxic materials known to have been treated, stored, disposed, spiUed or leaked at this constmction site. ii. Practices to minimize contact of constiuction materials, equpment, and vehicles with storm water. The foUowing practices wiU minimize contact of constmction materials, equipment, and vehicles with storm water: • All contractors wiU be provided with a storage yard in which to park vehicles at night and on non-working days. • Constmction materials wiU be stored in the storage area provided untU such materials are needed on-site. • Storage areas wiU be enclosed with temporary fencing where practical. Runoff From storage areas wiU be controlled to prevent silt and debris from entering the storm drain system. • Good housekeeping practices wiU be employed to: • cover and store materials, where practical • minimize contact with rainfall or mnoff • minimize waste • dispose of waste properly and recycle, where possible C:\My Documents\152.10SWP.doc Construction tnaterial loading unloading and access areas; Constmction material should be loaded and unloaded as needed at the constmction site in areas which have minimal storm mn-on. Any spiUage which occurs during transfer wUl be cleaned up immediately. Each contractor and subcontractor is encouraged to bring to thejob site only the material to be used that day. Large material items will be placed adjacent to their instaUation points so as to minimize handhng. Preconstruction practices (if any) to reduce sediment and other poUulants in storm water discharges; Entry to, and exit from the site wiU be restricted to proposed accesses. Vehicle wheels will be washed as they exit the site and street surfaces wUl be cleaned of visible dust and sand. DetaU drainage drawings have been prepared by Partners, Planning and Engineering, Inc. to meet local agent requirements. The City of Carlsbad is the local agency responsible for the administration of grading and erosion control plans through their land development pennit process. The basic requirement and recommendations of the local land development ordmance are considered a part of the provisions of this SWPPP. Equipment storage, deaning and maintenance areas; Equipment storage, cleaning, and maintenance areas wiU be designated for the duration of constmction. Equipment used for the grading and constmction operations may be stored on-site. Each contractor and subcontractor wiU be provided with a yard for material and equipment storage. AU debris and waste from the contractor's cleaning and maintenance operations wiU tie properly disposed of Good housekeeping practices vriU be employed at these sites and the sites wiU be inspected regularly using the checkhsts included in this SWPPP. Routine and emergency vehicle maintenance is expected to occur on-site when necessary. Equipment storage, cleaning, and maintenance operations wiU be limited to a designated area, when possible. C:\My Docuinents\152.10SWP.doc vi. Methods of on-site storage and disposal of construction materials; and As mentioned above, each contractor and subcontractor should be provided with a yard for material and equipment storage. All paints and solvents are required to be stored inside a roofed and lockable storage container. The contractor or subcontractor is responsible for following manufacturer's directions for the disposal of unused products. Constmction materials to be disposed of wUl be placed in dumpsters or other receptacles, or designated storage areas appropriate for the waste material at the end of each working day. The contractor and subcontractor wUl take all necessary and proper precautions to protect adjacent property owners from any or all damage that may occur from storm water mnoff and/or deposition of debris resulting from any and all work in conjunction with constmction according to the grading plans. vii. The nature of fill material and existing data describing the soil on the constniction site. 6. Erosion and Sediment Control The SWPPP shall indude: a. A description of soil stabilization practices. These practices shall be designed to preserve existing vegetation where feasible and to revegetate open areas as soon as feasible after grading or construction. In developing these practices, the discharge shall consider temporary seeding, permanent seeding mulching sod stabilization, vegetative buffer strips, protection of trees, or other soil stabilization practices. At a minimum, the operator must implement these practices on all disturbed areas during the rainy season. C:\My Documents\152.10SWP.doc Erosion control measures will be mstalled and functioning prior to the rainy season. The contrac^tor is required to take precautionary measures to protect the native vegetation withm all open space areas. Where certain areas become vulnerable to potential erosion, the use of sandbag check dams, hay bales, and siltation fences are recognized methods of sediment control. All slopes shaU be planted and urigated in accordance with plans approved by the City of Carlsbad, according to the local ordinance and manual. b. A description or illustration of control practices wiiich, to the extent feasible, will prevent a net increase of sediment load in storm water discharge. In developing oontrol practices, the discharger shall consider a fiill range of erosion and sediment controls such as detention basins, straw bale dikes, sik fences, eaith dikes, Inush barriers, vdocity dissq>ation devices, drainage swales, check dams, subsurface drain, p^ slope drain, levd spreaders, storm drain inlet protection, rock outlet protection, sediment traps, temporary sediment basins, or other controls. At a minimum, sandl>ag dikes, sik fences, straw bale dikes, or equivalent controls practices are required for all significant sideslope and downslope boundaries ofthe constiuction area. The discharger must consider site-^ecific and seasonal conditions when designingthe control practices. The contractor wUl take the necessary precautions to protect the constmction site and The adjacent properties from any erosion and siltation that results from the constmction activities for Laguna Point. Appropriate practices mclude, but not hmited to, sandbags, temporary desilting basins, and berms. After completion of constmction, maintenance wiU ultimately be the responsibihty of the owner, agency or association as accepted. c. Control practices to reduce the tracking of sediment onto public or private roads ^all be injected and cleaned as necessaiy. The primary impacts of wind erosion wiU be controlled through water apphcation on mam driving areas, constmction of graveled access road entrances, and hmitation of ofF-road drivmg. C:\MyDoar e. An estimate of the size of the construction site (in acres or square feet), an estimate of the runoff coeffident of the constiuction site before and after constmction, and an estimate of the percentage of the area of the construction site that is impervious (e.g, pavonent, buildings, etc.) before and after constniction. The tracking of sediment onto pubhc streets is normally attributed to constmction vehicles driving through unpaved areas. Prior to street paving, constmction site exits should be protected with a gravel roadbed. The graveled areas should be installed with a minimum length of 50 feet. The pubhc roads shall be mspected and cleaned, as necessary. d. Control practices to reduce wind erosion. Before Constmction After Constmction Runoff" Coefficient 0.70 0.95 % Impervious <1 90 7. Non-Storm Water Management The SWPPP shall include provisions which eliminate or reduce to the extent feasible the disdiarge of materials other than storm water to the stoim sewer system and/or recdving waters. Such provisions shall ensure, to the extent feasible, that no inaterials are discharged in quantities whidi will have an adverse effect on recdving waters. Materials otherthan storm water that are discharged ^all be listed along with the estimated quantity of the disdiarged material. Unregulated flows include line flushing, landscape irrigation, testing, street washing, and dewatering. Although these flows may occur on-site as vegetation is estabhshed, pipes are flushed and streets are washed, effbrts wiU be made to control these flows to the maximum extent practicable. C:\My Documents\152.I0SWP.doc 8. Post-Construction Storm Water Management The SWPPP shall describe the oontrol practices to reduce pollutants in storm water discharges after all construction [rfiases have been conpleted at the site. These must be consistent with all local post-oonstniction stoim water management requirements, polides, and guiddines. The disdiarger must consider site-^ecific and seasonal conditions when designing the oontrol practices. Operation and maintenanoe of control practices after construction is conpleted shall be addressed, induding dioit- and long-term fiinding sources and the responsible party. Post-constmction storm water control practices for Laguna Point wiU be the responsibihty of Laguna Point These practices wiU be a part of the City of Carlsbad's street sweeping and maintenance programs, and pubhc information, education, recycling, and other programs. Good housekeeping practices wiU also be implemented for Laguna Point. These practices include the controlled apphcation of carefiiUy selected fertUizers and pesticides, and a general on-site maintenance and disposal program to keep the site free of htter and debris. C:\My Documents\152.10SWP.doc Waste Management and Disposal All wastes (induding equipment maintenanoe waste) di^osed at the site or removed &om the site for di^osal shall be di^osed of in compliance with Federal, State, and local laws, regulations, and ordinance All waste material generated wiU be properly disposed of at an approved disposal site. Trash should be separated by type of handhng required, as described within this SWPPP. 10. Maintenance. Inspection, and Repair The SWPPP shall include maintenance, inspections, and repair procedures to ensure that all grade surfaces, walls, dams and structures, vegetation, erosion and sediment control measures, and other protective devices identified in the site plan are maintained in good and effective condition and are pronely repaired or restored. The most important aspects of maintenance, inspection, and repair are record keeping, tracking, and documentation practices. Inspection should occur prior to and after every rainfaU event. A contact person to be responsible for answering various mamtenance questions regarding this project has been identified from the Field Maintenance Contact Person Form located in the Appendix. It is prefened that this person be the constmction site manager, famUiar with the site and charged with comphance and oversight of the SWPPP. The project area wiU be regularly inspected to ensure that it is maintained in good and efFecrtive condition. Also included in the Appendix is a table which describes the protective devices, what to look for, types of maintenance measures for sediment control, and example checklists to be used to check areas for sediment and other potential pollutants and provide documentary evidence that inspection procedures are adhered to. These checkhsts include: visual inspection checkhst good housekeeping practices checkhst site assessment checklist C:\My Docunients\152.10SWP.doc The SWPPP shall include^^kdures to ensure that all infections required in Section B^^ue Monitoring Program and Reporting Requiranents of the g^Rl pmnit and maintenance and repair required in Paragraph^^f this Section are done by trained personnel. The goal of the storm water pollution prevention training program is to inform employees, contractors, and subcontractors of their levels of responsibihty for components and goals of the SWPPP. This traming program is a preventative maintenance technique, because when properly informed, employees, contractors, and subcontractors have increased awareness and are more capable of preventing spiUs, responding safely and effectively to accidents, and recognizing situations that could lead to storm water contamination. Storm water poUution prevention traming should be provided regularly by Laguna Point. One training session should be presented just prior to the start of the wet season. Topics can include, but are not limited to: spUl prevention and response, mspection records, annual reporting, locations and functions of sediment control devices, food housekeeping, and material management practices. Attendance records should be kept for each training session. Inspection logs and checkhsts should be distributed to aU personnel who wUl be performing the monitoring and reportmg. Records generated from all inspections, mamtenance operations, comphance certification, and noncompliance reporting should be retained for a period of at least three years after the termination of coverage under the Permit. These records do not have to be submitted with the exception of noncomphance reporting. The project records for monitoring and reporting in accordance with the SWPPP wUl be mamtained at the constmction site office. The comphance certification, which is located in the Appendix, is to be completed on July 1 of every year throughout constmction. C:\My Documents\152.10SWP.doc ~\2. List of Contractors/sij^PlCadOTS The SWPPP shall include a list of all contractors (or subcontractors) re^ onsible for inplementingthe SWPPP. A hst of contractors and subcontractors responsible for the implementation of the SWPPP at the project site and their involvement shall be provided by the General Contractor. The hst shaU be as complete as possible at the initial date of preparation of the SWPPP and wUl be amended periodicaUy as additional contractors or subcontractors become mvolved. The contractors and subcontractors shall go through the training program, as outlined in the recommended training procedures of this SWPPP. They shall also be mformed of the recommended good housekeeping practices and control measures. 13. other Plans niis SWPPP may incorporate^ by reference, the appropriate elements of other plans required by local. State, or Federal agendes. A copy of any requirements incoq>orated by reference shall be kept at the construction site. This SWPPP references no other plans at this time. 14. Public Access The SWPPP is considered a report that shall be available to the public under Section 308 (b) ofthe CWA L^on request by members ofthe public, the disdiarger shall make available for review a copy ofthe SWPPP either to the Regional Water Board or directly to the requestor. This SWPPP wiU be made available for review by the RWQCB or any requestor. 15. Preparer The SWPPP shall indude the signature and title of the person responsible for preparation of the SWPPP and indude the date of initial preparation and each amendment thereto. C:\My DocumentsM 52.10SWP.doc This SWPPP has been prepared by: Partners Planning and Engineering, Inc 9988 Hibert Street, Suite 212 Carlsbad, CA 92131 (858) 695-3344 Andrew J. Kann, P.E. Date Principal C:\My Documents\152.10SWP.doc Winston H. Hickox Secrelar)'for Environmental Proieciion Sta^Water Resources Comrol Board Division of Water Quality IOOl I Street • Sacramento, California 95814 • (916) 341-5537 Mailing Address: P.O. Box 1977 • Sacramento, California • 95812-1977 FAX (916) 341 -5543 • Intemet Address: hltp://\nvw.swrcb.ca.gov Gray Davi Governor December 13,200C IVIATT RENO RENO CONTRACTINd'* 1650 HOTEL CIRCLE N STE 201 SAN DIEGO, CA 92108 l^CEIPT OF YOUR NOTICE OF INTENT Tlie State Water Resources Control Board (Stale Waler Board) ha.*; receiv| INTENT TO COMPLY WITH THE TERMS OF THE GENERAL PEIUVll WATER ASSOCIATED WITH CONSTRUCTION ACTIVIT^^ccordir the permit requirements. Your WDID identification number is: 9 37S314668 regarding this pennit. cssed your NOTICE Gl- ISCHARGE STORM , you arejj^gpred to compiy witli uture communications OWNER.APP DEVELOPER:REN COUNTYI SITErADDR SITE DESCR Regional Wal must be met ir your future u^ you will con r wiy qi compldPMr ownership has been transferred, dischargers are required to notify the by submitting a Notice of Termination (NOT). All State and local requirements nee with Speciai Provision No. 7 of the General Pennit. I have enclosed a NOT for ^1 do not notify the State Water Board that construction activity iias been completed to be invoiced for the annual fee each October. If you havefmy questions regarding permit requirements, please contact your Regional Water Board at (619) 467-2952. Piease visit the storm water web page at www.swrcb.ca.gov/stormwtr/index.html to obtain storm water related information and forms. Sincerely, Audrey Shimizu Stomi Water Unit Division of Water Qi«ni«>v Enclosure California En vironmental Protection Agency ^ Recycled Paper Owners Name: UTDlDNo.: Prepared By: NEW OWINER INFORM.ATION AND CHANGE OF INFORMATION (COl) FORM FOR THE GENER.AL CONSTRUCTION PERMIT NO. CAS000002 Date: Date of Last NOI Change: Signature of Preparer: Area Transferred (acres)^ column 1 Area j Lot/Tract Remaining i Numbers (acres)- j Transferred column 2 i Contact Person and Company Name of NewOwner(s) .Addresstes) of the New Owner(s) 1 1 Phone ^ i Ls ConstTost of .New (;)\vner j Construction j Complete? Date of Ownershij; Tra^r I ; i ; ! ' \ i • 2 j 11 ! J i ' ' i 4 i 1 i 1 5 ! ! ! 6 i 1 1 ! ^ ^ i 1 : 1 i i 7 • I ; ; ! 1 : 10 : Lie appro.\in^.2:r area iin acres: irno exact figure is available. •Calculate nirir.ir.i: tola! in this column as follows: Enter in colu.nir. 2, line I. the area irom NOI minus the area in column I. Enter in colun^.r. 2. line 2, the area in column 2. line I. minus the area in line 2. column 1. Enter in colum:- 2. line 5, the area in column 2. line 2. minus the area in line 3. column I. FACT SHEET FOR WATER QUALITY ORDER 99-08.DWQ STATE WATER RESOURCES CONTROL BOARD (SWRCB) 901 P STREET, SACRAMENTO, CALIFORNIA 95814 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) GENERAL PERMIT FOR STORM WATER DISCHARGES ASSOCIATED WITH CONSTRUCTION ACTFVaTY (GENERAL PERMIT) BACKGROUND In 1972, the Federal Water Pollution Control Act (also refened to as the Clean Water Act [CWA]) was amended to provide that the discharge of pollutants to waters of the United States from any point source is unlawful unless the discharge is in compliance with an NPDES permit. The 1987 amendments to the CWA added Section 402 (p) which estabhshes a framework for regulating municipal and industrial storm water discharges under the NPDES Program. On November 16, 1990, the U.S. Envu-onmental Protection Agency (USEPA) pubhshed final regulations that estabhsh storm water pennit apphcation requuements for specified categories of industries. The regulations provide that discharges of storm water to waters of the United States from constmction projects that encompass five (5) or more acres of soU chstuibance are effectively prohibited unless the discharge is in comphance with an NPDES Permit. WhUe federal regulations aUow two permitting options for storm water discharges (individual pennits and General Pennits), the SWRCB has elected to adopt only one statewide General Permit at this time that wiU apply to all storm water discharges associated with constmction activity, except from those on Tribal Lands, in the Lake Tahoe Hydrologic Unit, and those performed by the Cahfomia Department of Transportation (Caltrans). Constmction on Tribal Lands is regulated by USEPA permit, the Lahontan Regional Water Control board adopted a separate NPDES permit for the Lake Tahoe Hydrologic Unit, and the SWRCB adopted a separate NPDES permit for Caltrans projects. This General Pennit requues aU dischargers where constmction activity disturbs five acres or more to: 1 . Develop and implement a Storm Water Pollution Prevention Plan (SWPPP) which specifies Best Management Practices (BMPs) that wiU prevent aU constmction pollutants from contacting storm water and with the intent of keeping aU products of erosion from moving off" site into receiving waters. 2. Eluninate or reduce nonstorm water discharges to storm sewer systems and other waters of the nation. 3. Perform mspections of all BMPs. I I This general Pennit shaU be implemented and enforced by the nine Cahfomia Regional Water Quahty Control Boards (RWQCBs). I I The General Permit accompanying this fact sheet regulates storm water mnoff" from constmction Sites. Regulating many storm water discharges under one permit wiU greatly reduce the otherwise overwhelming administrative burden associated with pennitting inchvidual storm I water discharges. Dischargers shaU submit a notice of Intent (NOI) to obtain coverage under this • General Permit. It is expected that as the storm water program develops, the RWQCBs may issue General Pennits or individual permits containing more specific permit provisions. When I this occurs, those dischargers wiU no longer be regulated by this General Pennit. TYPES OF CONSTRUCTION ACTTVITY COVERED BY THIS GENERAL PERMTT Constmction activity subject to this General Permit includes clearing, grading, disturbances to the ground such as stockpihng, or excavation that results in soU disturbances of at least five acres is subject to this General Permit if the constmction activity is part of a larger common plan of development that encompasses five or more acres of soU disturbance or if there is significant water quality impairment resulting from the activity. Constmction activity does not include routine maintenance to maintain original line and grade, hydraulic c^apacity, or original purpose of the facUity, nor does it include emergency constmction activities required to protect pubhc health and safety. Dischargers should confirm with the local RWQCB whether or not a particular routine maintenance acjtivity is subject to this General Pennit. A constmction project which includes a dredge and/or fiU discharge to any jurisdictional surface water (e.g., wetland, channel, pond, or marine water) wUl also need a CWA Section 404 permit from the U.S. Army Corp of Engineers and a CWA Section 401 Water Quahty Certification from the RWQCB/SWRCB. Storm water discharges from dredge spoU placement which occms outside of Corps jurisdiction (upland sites) and are part of constmction activity which (hsturbs five or more acres of land are covered by this general permit. Proponents of constmction projects which disturb five or more acres of land within the jurisdictional boundaries of a CWA Section 404 pennit should contact the local RWQCB to detennine the apphc^abihty of this permit to the project. NOTIFICATION REOUIREMENTS It is the responsibUity of the landowner to obtain coverage under this General Pennit prior to commencement of constmction activities. To obtain coverage, the landowner must file an NOI with a vidnity map and the appropriate fee with the SWRCB. In addition, coverage under this pennit shaU not ocxnir until the apphcant develops an adequate SWPPP for the project. Section A of the General Permit outhnes the requked contents of a SWPPP. For proposed constmction activity on easements or on nearby property by agreement or permission, the entity responsible for the constmction activity shaU file an NOI and fihng fee and shaU be responsible for development of the SWPPP, all of which must occur prior to commencement of constmction activities. A separate NOI shall be submitted to the SWRCB for each constmction site. Owners of new constmction shall file an NOI prior to the commencement of constmction. Owners of an ongoing constmction site that is covered under the previous General Constmction Permit (WQ Order No.92-08-DWQ) (1) shaU continue to implement their existmg SWPPP and monitoring program and (2) shall implement any necessary revisions to their SWPPP in a timely manner but in no case later than 90-calendar days from adoption of this General Permit in accordance with Section A of this General Permit. The NOI requirements ofthe General Pennit are intended to establish a mechanism which can be used to clearly identify the responsible parties, locations, and scope of operations at dischargers covered by the General Permit and to document the discharger's knowledge of the requirements for a SWPPP. The NOI must be sent to the foUowing address: State Water Resources Control Board Division of Water Quality Storm Water Permit Unit P.O. Box 1977 Sacramento, CA 95812-1977 The current annual fee for this General Pennit is either $500 or $250 dependmg on the location of the project. When constmction is complete or ownership has been transfened, dischargers shaU file a Notice of Termination with the RWQCB certifying that aU State and local requuements have been met m accordance with Special Provisions for Constmction Activity, C.7, of the General Pennit. Dischargers who faU to obtain coverage under this General Permit for storm water discharges to surface waters wUl be in violation of the CWA and the Califomia Water Code. CONSTRUCTION ACTTVITY NOT COVERED BY THIS GENERAL PERMTT This General Pennit does not apply to storm water discharges from (1) those areas on Tribal Lands; (2) the Lake Tahoe Hydrologic Unit; (3) constmction by municipal entities with a population under 100,000\ (4) constmction under five acres, unless part of a larger common plan of development or sale; (5) projects covered by an individual NPDES Pennit for storm water discharges associated with constmction activity; and (6) landfill constmction that is subject to the general industrial permit. ' These constraction activities are addressed by USEPA under the Phase II regulations. Constraction activities conducted by municipahties with a population less than 100,000 may be leqaaiedto apply for a permit under the Phase n regulations by August 7,2001. (CFR Section 122.26(g)(l)(ii). (40 CFR Part 122.26(g)(lXii)) Storm water discharges in the Lake Tahoe Hydrologic Unit are regulated by a separate pennit(s) adopted by the Cahfomia Regional Water Quahty Control Board, Lahontan Region (LRWQCB). USEPA regulates storm water discharges on Tribal Lands. Permit apphcations for storm water discharges that wiU be conducted m the Lake Tahoe Hydrologic Unit must be submitted directly to the RWQCB. DESCRIPTION OF GENERAL PERMIT CONDITIONS The following is a brief description of the major provisions of the General Permit and the basis for the General Pennit. Prohibitions This General Permit authorizes the discharge of storm water to surface waters from constmction activities that result in the disturbance of five or more acres of land. It prohibits the discharge of materials other than storm water and authorized storm water discharges and aU discharges which contain a hazardous substance in excess of reportable quantities estabhshed at 40 Code of Federal Regulations (CFR) 117.3 or 40 CFR 302.4 unless a separate DPDES Permit has been issued to regulate those discharges. In addition, this Generai Pennit contains provisions that uphold discharge prohibitions contained in water quahty control plans, as implemented through the nine RWQCBs. Effluent Limitations Pennits for storm water discharges associated with cx>nstmction activity shaU meet aU apphcable provisions of Sections 301 and 402 of the CWA. These provisions require controls of pollutant discharges that utilize best avaUable technology achievable (BAT) and best conventional poUutant control technology (BCT) to reduce poUutants and any more stringent controls necessary to meet water quaUty standards. It is not feasible at this time for the SWRCB to estabhsh numeric effluent hmitations. The reasons why it is not feasible to estabhsh numeric efiQuent limitations are discsussed in detail in SWRCB Order Nos. WQ 91-03 and WQ 91-04. Therefore, the effluent hmitations contained in this General Permit are nanative and include the requirement to implement appropriate BMPs.. The BMPs shaU primarily emphasize source (x>ntrols such as erosion cx>ntrol and poUution prevention methods. The discharger shall also instaU stmctural controls, as necessary, such as sedunent control which wiU constitute BAT and BCT and wiU achieve comphance with water quahty standards. The narrative effluent limitations constitute comphance with the requirements of tiie CWA. Elimination or reduction of nonstorm water discharges is a major goal of this General Permit. Nonstorm water discharges include a wide variety of sources, including improper dumping, spiUsm, or leakage from storage tanks or transfer areas. Nonstorm water discharges may contribute a significant pollutant load to receiving waters. Measures to control spiUs, leakage, and dumping and to prevent iUicit connections during constmction shaU be addressed through stmctural as weU as non-stmctural BMPs. This General Permit prohibits the discharge of materials other than storm water and authorized nonstorm water discharges. It is recognized that certain nonstorm water discharges may be necessary for the completion of constmction projects. Such discharges include, but are not limited to, irrigation of vegetative erosion control measures, pipe flushmg and testing, street cleaning, and dewatering. Such discharges are allowed by this General Permit provided they are not rehed upon to clean up failed or inadequate constmction or post constmction BMPs designed to keep materials onsite. These authorized nonstorm water discharges shaU (1) be infeasible to eliminate, (2) comply with BMPs as described m the SWPPP, and 3) not cause or contribute to a violation of water quahty standards. AdditionaUy, these discharges may be required to be permitted by the local RWQCB (e.g., some RWQCBs have adopted CJeneral Permits for dewatering discharges). This General Permit is performance-based to the extent that it prohibits the discharge of storm water that causes or threatens to cause poUution, cx)ntainination, or nuisance; but it also allows the owner/developer to determine the most economical, effective, and possibly innovative BMPs. The requirements of this General Permit are intended to be hnplemented on a year-round basis, not just during the part of the year when there is a high probabUity of a precipitation event which results in storm water mnofif. The pennit should be implemented at the appropriate level and in a proactive manner during aU seasons while constmction is ongoing. Weather and storm predictions or weather information conceming the 10-year, 6-hour storm event and mean annual rainfaU can be obtained by calling the Westem Regional Climate Center at (702) 677-3106 or via the mteraet at www.wrcc.dri.edu/precip.html and/or www.wrcc.dri.edii/pcpnfreq.html. Other rainfaU information is available at www.cdec.water.ca.gov. Receiving Water Limitations Language The receiving water hmitations language is fundamentaUy different from the language adopted in the SWRCB General Industrial Activities Storm Water Permit on AprU 17,1997. Constmction related activities which cause or contribute to an exceedance of water quahty standards must be conected immediately and cannot wait for the RWQCB to approve a plan of action to correct. The dynamic nature of constmction activity allows the discharger the abihty to more quickly identify and conect the source of the exceedances. Therefore, the owner is required to take immediate conecjtive action and to provide a report to the appropriate RWQCB within 14- calendar days of the violation describing the conectiye ac^on. Storm Water Pollution Prevention Plan (SWPPP) This General Permit requires development and hnplementation of a SWPPP. This document emphasizes the use of appropriately selected, conectly installed and maintained pollution reduction BMPs. This approach provides the flexibihty necessary to estabhsh BMPs which can effectively address source control of poUutants during changmg cx)nstmction activities. All dischargers shall prepare and implement a SWPPP prior to disturbmg a site. The SWPPP must be implemented at the appropriate level to protect water quahty at all times throughout the hfe of the project. Nonstorm water BMPs must be implemented year round. The SWPPP shaU remain on the site whUe the site is under constmction, cx>mmencing vAth ihe initial mobilization and ending with the tennination of coverage under the permit. The SWPPP has two major objectives: (1) to help identify the sources of sedunent and other pollutants that afifect the quality of storm water discharges and (2) to describe and ensure the implementation of BMPs to reduce or eliminate sediment and other poUutants in storm water as weU as nonstorm water discharges. The SWPPP shall include BMPs which address source control and, if necessary, shaU also include BMPs which address poUutant control. Required elements of a SWPPP include: (1) site description addressing the elements and characteristics specific to the site, (2) descriptions of BMPs for erosion and sediment controls, (3) BMPs for cx>nstmction waste handling and disposal, (4) implementation of approved local plans, (5) proposed post-constmction controls, including description of local post-(X)nstmction erosion and sediment control requirements, and (6) nonstorm water management. To ensure that the preparation, hnplementation, and oversight of the SWPPP is sufficient for effective poUution prevention, individuals responsible for creating, revismg, overseeing, and unplementmg the SWPPP should participate m apphcable traming programs and document such trammg m the SWPPP. SWPPPs are reports that are avaUable to the pubhc under Secstion 308(b) of the CWA and will be made avaUable by the RWQCB upon request. Monitoring Program Another major feature of the General Pennit is the development and implementation of a monitoring program. AU dischargers are required to (X)nduct inspections of the constmction site prior to anticipated storm events and after actual storm events. During extended storm events, inspections must be made during each 24-hour period. The goals of these inspections are (1) to identify areas contributing to a storm water discharge; (2) to evaluate whether measures to reduce poUutant loadings identified in the SWPPP are adequate and properiy instaUed and functioning in accordance with the terms of the General Permit; and (3) whether additional control practices or conective maintenance activities are needed. Equipment, materials, and workers must be avaUable for rapid response to faUures and emergencies. All corrective maintenance to BMPs shaU be perfonned as soon as possible, depending upon woricer safety. Each discharger shall certify annually that the constmction activities are in compUance with the requirements ofthis General Permit. Dischargers who cannot certify annual comphance shaU notify the appropriate RWQCB. A weU-developed monitoring program wiU provide a good method for checking the effectiveness of the SWPPP. Retention of Records The discharger is required to retain records of all monitoring information, copies of all reports requued by this General Permit, and records of aU data used to complete the NOI for all constmction activities to be covered by the General Permit for a period of at least three years from the date generated. This period may be extended by request of the SWRCB and/or RWQCB. With the exception of reporting noncompliance to the appropriate RWQCB, dischargers are not requued to submit the records, except upon specific request by the RWQCB. STATE WATER RESOURCES CONTROL BOARD (SWRCB) ORDER NO. 99-08-DWQ NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) GENERAL PERMIT NO. CA000002 WASTE DISCHARGE REQUIREMENTS (WDRS) FOR DISCHARGES OF STORM WATER RUNOFF ASSOCIATED WITH CONSTRUCTION ACTTVTTY The State Water Resources Control Board finds that: 1. Federal regulations for controUing poUutants in storm water mnoff" discharges were promulgated by the U.S. Environmental Protection Agency (USEPA) on November 16, 1990 (40 Code of Federal Regulations (CFR) Parts 122, 123, and 124). The regulations requue discharges of storm water to surface waters associated with constmction activity including clearing, grading, and excavation activities (except operations that result in disturbance of less than five acres of total land area and which are not part of a larger common plan of development or sale) to obtain an NPDES permit and to implement Best AvaUable Technology Economically Achievable (BAT) and Best Conventional PoUutant Control Technology (BCT) to reduce or eliminate storm water pollution. 2. This General Permit regulates poUutants in discharges of storm water associated with constmction activity (storm water discharges) to surface waters, except from those areas on Tribal Lands; Lake Tahoe Hydrologic Unit; constmction projects which disturi) less than five acres, unless part of a larger common plan of development or sale; and storm water discharges which are determined inehgible for coverage under this General Permit by the Cahfomia Regional Water Quahty Control Boards (RWQCBs). Attachment 1 contains addresses and telephone numbers of each RWQCB office. i. This General Pennit does not preempt or supersede the authority of locsal storm water management agencies to prohibit, restrict, or control storm water chscharges to separate storm sewer systems or other watercourses within their jurisdiction, as aUowed by State and Federa] law. /// /// /// /// 4. To obtain authorization for proposed storm water discharges to surface waters, pursuant to this General Pennit, the landowner (discharger) must submit a Notice of Intent (NOI) with a vicinity map and the appropriate fee to the SWRCB prior to commencement of constmction activities. In addition, coverage under this General Permit shall not occur untU the apphcant develops a Storm Water PoUution Prevention Plan (SWPPP) m accordance with the requirements of Section A of this pennit for the project. For proposed constmction activity conducted on easements or on nearby property by agreement or permission, or by an owner or lessee of a mineral estate (oil, gas, geothermal, aggregate, precious metals, and/or industrial minerals) entitied to conduct the activities, the entity responsible for the constmction activity must submit the NOI and filing fee and shall be responsible for development of the SWPPP. 5. If an individual NPDES Pennit is issued to a discharger otherwise subject to this General Permit or if an altemative General Pennit is subsequently adopted which covers storm water discharges regulated by this General Permit, the apphcabUity of this General Permit to such discharges is automaticaUy termmated on the effective date of the mdividual permit or the date of approval for coverage under the subsequent General Permit. 6. This action to adopt an NPDES pennit is exempt from the provisions of the Califomia Environmental Quality Act (Public Resources Code Section 21100, et seq.) in accordance with section 13389 of the Califomia Water Code. 1 7. The SWRCB adopted the Califomia Ocean Plan, and the RWQCBs have adopted and the SWRCB has approved Water Quahty Control Plans (Basin Plans). Dischargers regulated by this General Pemiit must comply with the water quahty standards in these Basin Plans I and subsequent amendments thereto. 8. The SWRCB finds storm water discharges associated with constmction activity to be I potential significant sources of poUutants. Furthermore, the SWRCB finds that storm " water discharges associated witii constmction activities have the reasonable potential to I cause or contribute to an excursion above water quahty standards for sediment in the water bodies hsted in Attachment 3 to this permit. 9. It is not feasible at this time to estabhsh numeric effluent limitations for poUutants in storm water discharges from constmction activities. Instead, the provisions of this General Pennit require implementation of Best Management Practices (BMPs) to control and abate the discharge of poUutants in storm water discharges. 10. Discharges of non-storm water may be necessary for the completion of certain constmction projects. Such discharges include, but are not limited to: inigation of vegetative erosion control measures, pipe flushing and testing, street cleaning, and dewatering. Such discharges are authorized by this General Pennit as long as they (a) do comply with Secton A.9 of this General Permit, (b) do not cause or contribute to violation of any water quahty standard, (c) do not violate any other provision of this General Permit, (d) do not require a non-storm water permit as issued by some RWQCBs. and (e) are not prohibited by a Basm Plan. If a non-storm water discharge is subject to a separate permit adopted by a RWQCB, the discharge must additionaUy be authorized by the RWQCB pemiit. 11. Following adoption of this General Permit, the RWQCBs shall enforce the provisions herein includmg the monitoring and reporting requirements. 12. FoUowing pubhc notice m accordance with State and Federal laws and regulations, the SWRCB in a pubhc meeting on June 8, 1998, heard and considered all comments. The SWRCB has prepared written responses to all significant comments. 13. This Order is an NPDES permit m comphance within section 402 of the Clean Water Act (CWA) and shall take effect upon adoption by the SWRCB provided the Regional Administrator of the USEPA has no objection. If the USEPA Regional Administrator objects to its issuance, the General Permit shall not become effective until such objection is withdrawn. I 14. This General Permit does not authorize discharges of fill or dredged material regulated by the U.S. Army Corps of Engineers under CWA section 404 and does not constitute a _ waiver of water quality certification under CWA section 401. IT IS HEREBY ORDERED that all dischargers who file an NOI indicating theu mtention to be - regulated under the provisions of this General Pennit shall comply vnth the foUowing: • A. DISCHARGE PROHIBITIONS: I 1. Authorization pursuant to this General Permit does not constitute an exemption to apphcable discharge prohibitions prescribed in Basin Plans, as implemented by the mne RWQCBs. I 2. Discharges of material other than storm water which are not otherwise authorized I by an NPDES permit to a separate storm sewer system (MS4) or waters of the nation are prohibited, except as allowed in Special Provisions for Constmction Activity, C.3. I 3. Storm water discharges shall not cause or threaten to cause poUution, contamination, or nuisance. 4. Storm water discharges regulated by this General Permit shaU not contain a hazardous substance equal to or in excess of a reportable quantity hsted in 40 CFR Part 117 and/or 40 CFR Part 302. B. RECEFVING WATER LIMITATIONS: 1. Storm water discharges and authorized nonstorm water discharges to any surface or ground water shall not adversely impact human health or the enviromnent. 2. The SWPPP developed for the constmction activity covered by this General Permit shall be designed and implemented such that storm water discharges and authorized nonstorm water discharges shaU not cause or contribute to an exceedance of any applicable water quality standards contained in a Statewide Water Quahty Control Plan and/or the apphcable RWQCB's Basm Plan. 3. Should it be determined by the discharger, SWRCB, or RWQCB that storm water discharges an/or authorized nonstorm water discharges are causing or contributing to an exceedance of an apphcable water quahty standard, the discharger shaU: a. Implement conective measures immediately foUowing discovery that water quality standards were exceeded, followed by notification to the RWQCB by telephone as soon as possible but no later than 48 hours after the discharge has been discovered. This notification shaU be foUowed by a report within 14-calendar days to the appropriate RWQCB, unless otherwise duected by the RWQCB, describing (1) the nature and cause of the water quahty standard exceedance; (2) the BMPs cunently being hnplemented; (3) any additional BMPs which wiU be hnplemented to prevent or reduce poUutants that are causing or contributing to the exceedance of water quahty standards; and (4) any maintenance or repair of BMPs. This report shaU mclude an hnplementation schedule for conective actions and shaU describe the actions taken to reduce the poUutants causing or contributmg to the exceedance. b. The discharger shaU revise its SWPPP and monitoring program immediately after the report to the RWQCB to mcorporate the additional BMPs that have been and wiU be implemented, the implementation schedule, and any additional monitoring needed. c. Nothing in this section shaU prevent the appropriate RWQCB from enforcing any provisions of this General Pennit whUe the discharger prepares and implements the above report. C. SPECL\L PROVISIONS FOR CONSTRUCTION ACTIVITY 1. All dischargers shaU file an NOI and pay the appropriate fee for constmction activities conducted at each site as required by Attachment 2: Notice of Intent - General Instmctions. 2. All dischargers shall develop and implement a SWPPP in accordance with Secjtion A: Storm Water Pollution Prevention Plan. The discharger shaU implement cx)ntrols to reduce pollutants in storm water discharges from their constmction sites to the BAT/BCT performance standard. 3. Discharges of non-storm water are authorized only where they do not cause or contribute to a violation of any water quahty standard and are controUed through hnplementation of appropriate BMPs for ehmination or reduction of poUutants. Implementation of appropriate BMPs is a condition for authorization of non-storm water discharges. Non- storm water discharges and the BMPs appropriate for their control must be described in the SWPPP. Wherever feasible, altematives which do not resuk in discharge of nonstorm water shaU be implemented in accordance with Section A.9. of the SWPPP requirements. 4. All dischargers shall develop and implement a monitoring program and reporting plan in accordance with Section B: Monitoring Program and Reporting Requirements. 5. All dischargers shall comply vdth the lawful requirements of municipahties, counties, drainage districts, and other local agencies regarding discharges of storm water to separate storm sewer systems or other watercourses under their jurischc^on, including appUcable requirements on municipal storm water management programs developed to comply with NPDES permits issued by the RWQCBs to local agencies. 6. All dischargers shall comply with the standard provisions and reporting requirements contained in Section C: Standard Provisions. 7. The discharger may tenninate coverage for a portion of the project under this General Permit when ownership of a portion of this project has been transfened or when a phase within this multi-phase project has been completed. When ownership has transferred, the discharger must submit to its RWQCB a Change of Information form (COI) Attachment 4 with revised site map and the name, address and telephone number of the new owner(s). Upon transfer of titie, the discharger should notify the new owner(s) of the need to obtain coverage under this General Pemiit. The new owner must comply with provisions of Sections A. 2. (c) and B. 2. (b) of this Cieneral Permit. To terminate coverage for a portion of the project when a phase has been completed, the discharger must submit to its RWQCB a COI with a revised map that identifies the newly delineated site. 8. The discharger may tenninate coverage under this General Permit for a complete project by submittmg to its RWQCB a Notice of Termination Form ( NOT), and the post- constmction BMPs plan according to Section A. 10 of this General Pemiit. Note that a constmction projecft is considered complete only when aU portions of the site have been transfened to a new owner; or the foUowing conditions have been met: a. There is no potential for constmction related storm water poUution, b. AU elements of the SWPPP have been completed, c. Constmction materials and waste have been disposed of properly, d. The site is in comphance with aU local storm water management requirements, and e. A post-constmction storm water management plan is in place as described in the sites' SWPPP. 9. This General Permit expires five years from the date of adoption. D. REGIONAL WATER QUALITY CONTROL BOARD (RWQCB) AUTHORITIES: 1. RWQCBs shaU: a. Implement the provisions of this General Pemiit. Implementation of this General Permit may include, but is not limited to requesting the submittal of SWPPPS, reviewing SWPPPs, reviewing monitoring reports, conducting comphance inspections, and taking enforcement actions. b. Issue permits as they deem appropriate to individual dischargers, categories of dischargers, or dischargers in a geographic area. Upon issuance of such pennits by a RWQCB, the affected dischargers shaU no longer be regulated by this General Permit. 2. RWQCBs may require, on a case-by-case basis, the inclusion of an analysis of Potential downstream impacts on receiving waterways due to the permitted constmction. 3. RWQCBs may provide information to dischargers on the development and Implementation of SWPPPs and monitoring programs and may require revisions to SWPPPs and monitoring programs. 4. RWQCBs may require dischargers to retain records for more than three years. 5. RWQCBs may requke additional monitoring and reportmg program requirements including sampling and analysis of discharges to water bodies hsted in Attachment 3 to this permit. Additional requirements imposed by the RWQCB should be consistent with the overall monitoring effort m the receiving waters. RWQCBs may issue individual NPDES permits for those constmction activities found to be ineligible for coverage under this permit. CERTIFICATION The undersigned. Administrative Assistant to the Board, does hereby certify that the foregoing is a fiiU, tme, and conect copy of an order duly and regularly adopted at a meeting of the State Water Resources Control Board held on August 19, 1999. AYE: NO: ABSENT: ABSTAIN: James M. Stubchaer Mary Jane Forster John W. Brown Arthur G. Baggett, Jr. None None None Maureen Marche Administative Assistant to the Board I I I I I a. Identify all poUutant sources including sources of sediment that may affect the [quality of storm water discharges associated with constmction activity (storm SECTIONA: STORM WATER POLLUTION PREVENTION PLAN 1. Objectives A Storm Water PoUution Prevention Plan (SWPPP) shaU be developed and inplemented to address the specific cncumstances for each constmction site covered by this General permit. The SWPPP shall be certified in accordance with the signatory requirements of section C, Standard Provision for Constmction Activities (9). The SWPPP shall be developed and amended or revised, when necessary, to meet the foUowing objectives: water discharges) from the constmction site, and b. Identify non-storm water discharges, and c. Identify, constmct, implement in accordance with a time schedule, and maintain Best Management Practices (BMPs) to reduce or ehminate poUutants in storm water discharges and authorized nonstorm water discharges from the constmcstion site during constmction, and c. Develop a maitttenance schedule for BMPs instaUed during cx>nstmction designed to reduce or eliminate poUutants after constmcstion is completed (post- constmction BMPs). Implementation Schedule a. For constmction activity commencing on or after adoption of this general Permit, The SWPPP shaU be developed prior to the start of soU-disturbing acstivity in accordance with this Section and shaU be implemented concurrentiy with commencement of soU-disturbing activities. I b. Existing permittees engaging in constmction acrtivities covered under the terms of the previous General Constmction Permit SWPPP (WQ Order No.92-08-DWQ) shaU continue to implement their existing SWPPP and shall implement any necessary revisions to their SWPPP in accx>rdance with this Section of the General Permit in a timely manner, but in no case more than 90-calendar days from the date of adoption of this General Permit. For ongoing constmction ac^vity involving a change of ownership of property. The new owner shaU review the existing SWPPP and amend if necessary, or develop a new SWPPP within 45-calendar days. I Availability The SWPPP shall remain on the constmction site while the site is under constmction during working hours, commencmg with the initial constmction activity and ending vrith termination of coverage under the General Permit. Required Changes a. The discharger shall amend the SWPPP whenever there is a change m constmction or operations which may affect the discharge of poUutants to surface waters, ground waters, or a municipal separate storm sewer system(MS4). The I SWPPP shaU also be amended if the discharger violates any condition of this • General Permit or has not achieved the general objective of reducmg or I elunmating poUutants m storm water discharges. If the RWQCB detennines that the discharger is in violation of this (jeneral Permit, the SWPPP shaU be amended and hnplemented in a timely manner, but in no case more than 14-calendar days I after notification by the RWQCB. All amendments should be dated and du-ectiy I attached to the SWPPP. h. The RWQCB or local agency with the concunence of the RWQCB may require the discharger to amend the SWPPP. I 5. Source Identification The SWPPP shall include: (a) project information and (b) poUutant source identification I combined with an itemization of those BMPs specifically chosen to control the poUutants hsted. a. Project Information (1) The SWPPP shall include a vicinity map locating the project site with respect to easUy identifiable major roadways, geographic features, or landmarks. At a minimum, the map must show the constmction site perimeter, the geographic features sunounding the site and the general topography. (2) The SWPPP smaU mclude a site map(s) which show the constmction project in detaU, including the existing and planned paved areas and buUdings. (a) At a minimum, the map must show the constmction site perimeter; existing and proposed buUdings, lots, roadways, storm water coUection and discharge points; general topography both before and after csonstmc^ion; and the anticipated discharge location(s) where the storm water from the constmction site discharges to a municipal storm sewer system or other water body. (b) The drainage pattems across the project area must clearly be shown on the map, and the map must extend as far outside the site perimeter as necessary to iUustrate the relevant drainage areas. Where relevant drainage areas are too large to depict on the map, map notes or inserts iUustrating the upstream drainage areas are sufficient. (c) Temporary on-site drainages to cjarry concentrated flow shall be selected to comply with local ordinances, to control erosion, to return flows to their natural dramage courses, and to prevent damage to downstream properties. 3. Information presented in the SWPPP may be represented either by nanative or by graphics. Where possible, nanative descriptions should be plan notes. Nanative descriptions which do not lend themselves to plan notes can be contained in a separate document which must be referenced on the plan. b. Pollutant Source and BMP Identification The SWPPP shaU include a description of potential sources which are likely to add poUutants to storm water discharges or which may result in nonstorm water discharges from the constmction site. Discharges originating from off-site which flow across or through areas disturbed by constmction that may contain poUutants should be reported to the RWQCB. The SWPPP shall: (1) Show drainage pattems and slopes anticipated after major grading Activities are completed. Runoflf from ofF-site areas shouM be prevented from flowing through areas that have been chsturbed by constmction unless appropriate conveyance systems are in place. The amount of anticipated storm water run-on must be considered to determine the appropriateness of the BMPs chosen. Show aU calculations for anticipated storm water mn-on, and describe aU BMPs implemented to divert oflf-site drainage described in section A. 5a. (2) (c) around or through the constmcfion projecf. (2) Show the dramage pattems into each on-site storm water inlet point or Receivmg water. Show or describe the BMPs that vriU protect operational storm water inlets or receiving waters from (X)ntaniinated discharges other than sedunent discharges, such as, but not hmited to: storm water with 10 elevated PH levels from contact with soil amendments such as lime or gypsum; slurry from sawcutting of concrete or asphalt; washing of exposed aggregate concrete; concrete rinse water; building washing operations; equipment washing operations; minor street washmg associated with street delineation; and/or seahng and paving activities occurring during rams. (3) Show existing site features that, as a result of known past usage, may contribute pollutants to storm water, (e.g., toxic materials that are known to have been treated, stored, disposed, spiUed, or leaked onto the constmction site). Show or describe the BMPs implemented to minimize the exposure of storm water to contaminated soU or toxic materials. (4) Show areas designated for the (a) storage of soU or waste, (b) vehicle storage and service areas, (c) constmction material loading, unloading, and access areas, (d) equipment storage, cleaning, and maintenance areas. (5) Describe the BMPs for control of discharges from waste handling and disposal areas and methods of on-site storage and disposal of constmction materials and constmction waste. Describe the BMPs designed to minimize or ehminate the exposure of storm water to constmction materials, equipment, vehicles, waste storage areas, or service areas. The BMPs described shall be in compliance wdth Federal, State, and local laws, regulations, and ordinances. (6) Describe aU post-constmction BMPs for the project, and show the location of each BMP on the map. (Post-constmction BMPs consist of permanent features designed to mmimize pollutant discharges, including sediment, from the site after constmction has been completed). Also, describe the agency or parties to be the responsible party for long-term maintenance of these BMPs. c. Additional Information (1) The SWPPP shaU include a nanative description of poUutant sources and BMPs that cannot be adequately communicated or identified on the site map. In addition, a narrative description of preconstmction Control practices (if any) to reduce sediment and other pollutants in storm water discharges shaU be included. (2) The SWPPP shaU include an inventory of aU materials used and activities performed during constmction that have the potential to csontribute to the discharge of poUutants other than sediment in storm water. Describe the BMPs selected and the basis for their selection to eliminate or reduce these poUutants m the storm water discharges. 11 (3) The SWPPP shall include the foUowing infonnation regarding the constmction site surface area: the size (m acres or square feet), the mnoff^ coefficient before and after constmction, and the percentage that is impervious (e.g., paved, roofed, etc.) before and after constmction. (4) The SWPPP shall include a copy of the NOI, and the Waste Discharge Identification (WDID) number. Should a WDID number not be received from the SWRCB at the tune constmction commences, the discharger shall include proof of mailing of the NOI, e.g., certified mail receipt, copy of check, express maU receipt, etc. (5) The SWPPP shall include a constmction activity schedule which describes aU major activities such as mass grading, pavmg, lot or parcel improvements at the site and the proposed time frame to conduct those activities. (6) The SWPPP shall hst the name and telephone number of the quahfied person(s) who have been assigned responsibUity for prestorm, poststorm, and storm event BMP inspections; and the quahfied person(s) assigned responsibihty to ensure fliU comphance with the permit and implementation of aU elements of the SWPPP, including the preparation of the annual comphance evaluation and the elimination of all unauthorized discharges. Erosion Control Erosion control, also refened to as "soU stabihzation" is the most effective way to retain soU and sediment on the constmction site. The most efficient way to address erosion control is to preserve existing vegetation where feasible, to hmit chsturbance, and to stabilize and revegetate disturbed areas as soon as possible after grading or constmction. Particular attention must be paid to large mass-graded sites where the potential for soU exposure to the erosive effects of rainfaU and wind is great. Mass graded constmction sites may be exposed for several years whUe the project is being buih out. Thus, there is potentia] for significant sediment discharge from the site to surface waters. At a minimum, the discharger/operator must implement an efifective combination of erosion and sediment control on all disturbed areas during the rainy season. These disturbed areas include rough graded roadways, slopes, and buUding pads. Until permanent vegetation is estabhshed, soU cover is the most cost-efi*ective and expeditious method to protect soU particles from detachment and ttansport by rainfall. Temporaiy soU stabilization can be the single-most important factor in reducing erosion at constmcfion sites. The discharger shaU consider measures such as: covering with mulch, temporary seeding, soU stabilizers, binders, fiber roUs or blankets, temporary vegetation, permanent seeding, and a variety of other measures. 12 The SWPPP shaU include a description of the erosion control practices, mcluding a time schedule, to be implemented during constmction to minimize erosion on disturbed areas of a constmction site. The discharger must consider the fiiU range of erosion conttol BMPs. The discharger must consider any additional site-specific and seasonal conditions when selecting and implementing appropriate BMPs. The above hsted erosion control measures are examples of what should be considered and are not exclusive of new or innovative approaches cunently available or being developed. a. The SWPPP shaU mclude: (1) An outiine of the areas of vegetative soil cover or native vegetation onsite which wUl remain undisturbed during the constmction project. (2) An outhne of aU areas of soil disturbance includmg cut or fiU areas which wiU be stabilized during the rainy season by temporary or permanent erosion control measures, such as seeding, mulcli, or blankets, etc. (3) An outhne of the areas of soU disturbance, cut, or fiU which wUl be left exposed durmg any part of the rainy season, representing areas of potential soU erosion where sediment control BMPs are required to be used during constmction. (4) A proposed schedule for the implementation of erosion control measures. b. The SWPPP shaU include a description of the BMPs and conttol practices to be used for both temporary and permanent erosion conttol measures. e. The SWPPP shaU mclude a description of the BMPs to reduce wind ero^on at aU tunes, with particular attention paid to stock-pUed materials. StabUization (1) AU disturbed areas of the constmction site must be stabilized. Final stabilization for the purposes of submitting a NOT is satisfied when: -AU soU distuibing acfivities are completed AND EITHER OF THE TWO FOLLOWING CRITERIA ARE MET: -A unifonn vegetative cover with 70 percent coverage has been estabhshed OR: -Equivalent stabUization measures have been employed. These measures include the use of such BMPs as blankets, remforced 13 I I I channel liners, soU cement, fiber matrices, geotextUes, or other erosion resistant soU coverings or tteatments. (3) Where background native vegetation covers less than 100 percent of the surface, such as in arid areas, the 70 percent coverage criteria is adjusted as follows: Ifthe native vegetation covers 50 percent of the ground surface, 70 percent of 50 percent (.70 X .50=.35) would require 35 percent total unifonn surface coverage. 8. Sediment Control The SWPPP shaU include a description or Ulustration of BMPs which wiU be implemented to prevent a net increase of sediment load in storm water discharge relative to preconstmction levels. Sedunent cjontrol BMPs are required at appropriate locations along the site perimeter and at all operational intemal inlets to the storm drain system at all times during the rainy season. Sediment control practices may include filttation devices and barriers (such as fiber roUs, silt fence, straw bale barriers, and gravel inlet fUters) and/or settling devices (such as sediment traps or basins). Efifective filtration devices, barriers, and settling devices shall be selected, instaUed and maintained properly. A proposed schedule for deployment of sediment conttol BMPs shaU be included in the SWPPP. These are the most basic measures to prevent sediment from leaving the projecf site and moving into receiving waters. Limited exemptions may be authorized by the RWQCB when work on active areas precludes the use of sediment conttol BMPs temporarily. Under these conditions, the SWPPP must describe a plan to estabhsh perimeter controls prior to the onset of rain. During the nonramy season, the discharger is responsible for ensuring that adequate sedunent control materials are avaUable to control sedunent discharges at the downgrade perimeter and operational inlets in the event of a predicted storm. The discharger shaU consider a fliU range of sediment controls, in addition to the controls hsted above, such as straw bale dikes, earth dikes, bmsh barriers, cfrainage swales, check dams, subsurface drain, sandbag dikes, fiber roUs, or other controls. At a minimum, the discharger/operator must implement an efifective combination of erosion and sedunent control on all disturbed areas during the rainy season. Ifthe discharger chooses to rely on sedunent basins for tteatment purposes, sediment basins shall, at a rmnunum, be designed and maintained as foUows: Option 1: Pursuant to local ordinance for sediment basin design and maintenance, provided that the design efficiency is as protective or more protective of water quahty than Option 3. OR 14 option 2: Sediment basin(s), as measured from the bottom of the basin to the principal outlet, shaU have at least a capacity equivalent to 3,600 cubic feet of storage per acre drainmg unto the sediment basin. The length of the basin shall be more than twice the width ofthe basin. The length is detemiined by measuring the distance between the inlet and the outiet; and the depth must not be less than three feet nor greater than five feet for safety reasons and for maximum efficiency. OR Option 3: Sediment basin(s ) shall be designed using the standard equation: As= 1.2 Q/Vs Where: As is the minimum surface area for trappmg soU particles of a certain size; Vs is the settling velocity of the design particle size chosen; and Q=C xlx A where Q is the discharge rate measured in cubic feet per second; C is the mnoff coefficient; I is the precipitation intensity for the 10-year, 6-hour rain event and A is the area draming into the sediment basin in acres. The design particle size shaU be the smaUest soU grain size determined by wet sieve analysis, or the fine sUt sized (0.01 mm) particle, and the Vs used shall be 100 percent of the calculated setthng velocity. The length is determined by measuring the distance between the mlet and the outiet; the length shaU be more than twice the dunension as the width; the depth shaU not be less than three feet nor greater than five feet for safety reasons and for maximum efficiency (two feet of storage, two feet of capacity). The basin(s) shall be located on the site where it can be maintained on a year-round basis and shaU be maintained on a schedule to retain the two feet of capacity; OR Option 4: The use of an equivalent surface area design or equation, provided that the design efficiency is as protective or more protective of water quality than Option 3. A sediment basin shaU have a means for dewatering within 7-calendar days foUowing a storm event. Sediment basins may be fenced if safety (worker or pubhc) is a concem. The outflow from a sediment basin that discharges into a natural drainage shaU be provided with outlet protection to prevent erosion and scx)ur of the embankment and chaimel. 15 The discharger must consider any additional site-specific and seasonal cxjnditions when selectmg and designing sediment control BMPs. The above hsted sediment control measures are examples of what should be considered and are not exclusive of new or irmovative approaches cunently available or being developed. The SWPPP shaU include a description of the BMPs to reduce the tracking of sediment onto pubhc or private roads at aU times. These pubhc and private roads shaU be inspected and cleaned as necessary. Road cleaning BMPs shall be discussed in the SWPPP and will not rely on the washing of accumulated sediment or sih into the storm drain system. 9. Non-Storm Water Management Describe all non-storm water discharges to receiving waters that are proposed for the constmction projecf. Non-storm water discharges should be eliminated or reduced to the extent feasible. Include the locations of such discharges and descriptions of aU BMPs designed for the control of poUutants in such discharges. Onetime discharges shall be monitored during the time that such discharges are oceurring. A qualified person should be assigned the responsibihty for ensuring that no materials other than storm water are discharged in quantities which wiU have an adverse effect on receiving waters or storm drain systems (consistent with BAT/BCT), and the name and contact number of that person should be included in the SWPPP document. Discharging sediment-laden water which wiU cause or contribute to an exceedance of the apphcable RWQCB's Basin Plan from a dewatering site or sediment basm mto any receiving water or storm dram without filtration or equivalent treatment is prohibited. 10. Post-Constmction Storm Water Management The SWPPP shaU include descriptions of the BMPs to reduce poUutants in storm water discharges after aU constmction phases have been completed at the site (Post- Constmction BMPs). Post-Constmction BMPs mclude the minimization of land disturbance, the minimization of impervious surfaces, treatment of storm water mnoff usmg mfiltration, detention/retention, biofilter BMPs, use of efficient urigation systems, ensuring that interior drains are not connected to a storm sewer system, and appropriately designed and constmcted energy dissipation devices. These must be consistent with aU local post-constmction storm water management requuements, pohcies, and guidelines. The discharger must consider site-specific and seasonal conditions when designing the control practices. Operation and maintenance of conttol practices after constmction is completed shaU be addressed, including short-and long-term funding sources and the responsible party. 16 11. Maintenance. Inspection, and Repair The SWPPP shaU include a discussion of the program to inspect and maintain aU BMPs as identified in the site plan or other nanative documents throughout the entire duration of the project. A qualified person wiU be assigned the responsibility to conduct mspections. The name and telephone number of that person shaU be hsted in the SWPPP document. Inspections will be performed before and after storm events and once each 24- hour period during extended storm events to identify BMP effectiveness and implement repairs or design changes as soon as feasible depending upon field conditions. Equipment, materials, and workers must be avaUable for rapid response to faUures and emergencies. All conective maintenance to BMPs shaU be performed as soon as possible after the conclusion of each storm, depending upon worker safety. For each inspection required above, the discharger shall complete an inspection checkhst. At a minimum, an inspection checklist shall include: a. Inspection date. b. Weather information: best estimate of beginning of storm event, duration of event, time elapsed smce last storm, and approximate amount of rainfaU (inches). c. A description of any inadequate BMPs. d. If it is possible to safely access during inclement weather, hst observations of aU BMPs: erosion conttols, sediment conttols, chemical and waste cx>nttols, and non- storm water conttols. Otherwise, hst result of visual inspection at relevant outfall, discharge point, or downstteam location and projecf ed required maintenance activities. e. Conective actions requued, including any changes to SWPPP necessary and hnplementation dates. f Inspectors name, title, and signature. The dischargers shall prepare their inspection checkhsts using the inspection checkhst form provided by the SWRCB or RWQCB or on forms that contain the equivalent infonnation. 12. Trammg Individuals responsible for SWPPP preparation, implementation, and permit comphance shaU be appropriately ttained, and the SWPPP shall document aU training. This includes those persoimel responsible for instaUation, inspection, maintenance, and repair of BMPs. Those responsible for overseemg, revising, and amenchng the SWPPP shaU also document theh" trammg. Trainmg should be both formal and informal, occur on an 17 ongoing basis when it is appropriate and convenient, and should mclude trammg/workshops offered by the SWRCB, RWQCB, or other locaUy recognized agencies or professional organizations. 13. List of Contractors/Subcontractors I The SWPPP shall include a hst of names of all contractors, (or subcontractors) and • individuals responsible for implementation of the SWPPP. This hst should include telephone numbers and addresses. Specific areas of responsibihty of each subcontracf or I and emergency contact numbers should also be mcluded. 14. Other Plans This SWPPP may incorporate by reference the appropriate elements of other plans requued by local. State, or Federal agencies. A copy of any requuements mcorporated by reference shall be kept at the constmction site. 15. Pubhc Access I The SWPPP shaU be provided, upon request, to the RWQCB. The SWPPP is considered I a report that shall be available to the public by the RWQCB under section 308(b) of the Clean Water Act. 16. Preparer Certification The SWPPP and each amendment shaU be signed by the landowner (discharger) or his representative and include the date of initial preparation and the date of each amendment. SECTION B: MONITORING PROGRAM AND REPORTING REQUIREMENTS 1. Required Changes The RWQCB may require the discharger to conducf additional site inspections, to submit Reports and certifications, or perform sampling and analysis. 2. Implementation a. The requirements of this Secfion shaU be implemented at the time of cx>mmencement of constmction activity (see also Section A.2. Implementation Schedule). The discharger is responsible for implementing these requirements until constmcfion activity is complete and the site is stabilized. For ongoing constmction acfivity involving a change in ownership of property Covered by this General Pennit, the new owner must complete a NOI and 18 implement the requirements of this Section concunent with the change of ownership. For changes of information, the owner must follow instmctions in C. 7. Special Provisions for Constmction Activity of the General Pemiit. 3. Site Inspections Quahfied personnel shaU conduct inspections of the constmction site prior to anticipated storm events, during extended storm events, and after actual storm events to identify areas contributing to a discharge of storm water associated vdth constmction activity. The name(s) and contact number(s) of the assigned inspection personnel shaU be hsted in the SWPPP. Pre-storm inspections are to ensure that BMPs are properly ir^staUed and maintained; post-storm inspections are to assure that the BMPs have functioned adequately. During extended storm events, inspections shall be required each 24-hour period. Best Management Practices (BMPs) shaU be evaluated for adequacy and proper implementation and whether additional BMPs are required in accordance with the terms of the General Pennit (see language in Section A. 11. Maintenance, Inspection, and Repair). Implementation of non-storm water discharge BMPs shaU be verified and their effectiveness evaluated. One time discharges of non-storm water shaU be inspected when such discharges occur. 1. Comphance Certification Each discharger or qualified assigned personnel hsted by name and contact number in the SWPPP must certify annually that constmction acfivities are in comphance with the requuements of this General Permit and the SWPPP. This Certification shaU be based upon the site inspections requued in Item 3 of this Section. The certification must be completed by July 1 of each year. Noncomphance Reporting Dischargers who caimot certify comphance, in accordance within Item 4 of this Section and/or who have had other instances of noncomphance excluding exceedances of water quality standards as defined in section B.3. Receiving Water Limitations Language, shall notify the appropriate RWQCB within 30 days. Corrective measures should be implemented immediately foUowing discovery that water quahty standards were exceeded. The notifications shaU identify the noncomphance event, including an initial assessment of any impact caused by the event; describe the actions necessary to achieve compliance; and include a time schedule subject to the modifications by the RWQCB indicating when comphance wUl be achieved. Noncx)mphance notifications must be submitted within 30-calendar days of identificjation of noncomphance. 19 6. Monitoring Records Records of aU inspections, comphance certifications, and noncomphance reporting must be retained for a period of at least three years from the date generated. With the exception of noncomphance reporting, dischargers are not required to submit these records. SECTION C: STANDARD PROVISIONS FOR CONSTRUCTION ACTTVITY 1. Duty to Compiv The discharger must comply with aU of the conditions of this General Permit. Any permit noncompliance constitutes a violation of the Clean Water Act (CWA) and the Porter- Cologne Water Quahty Control Act and is grounds for enforcement action and/or removal from General Permit coverage. The discharger shaU comply with effluent standards or prohibitions estabhshed under Section 308(a) of the CWA for toxic pollutants within the time provided m the regulations that estabhsh these standards or prohibitions, even if this General Permit has Not yet been modified to incorporate the requirement. 2. (jeneral Permit Actions This General Pennit may be modified, revoked and reissued, or terminated for clause. The fihng of a request by the discharger for a General Pennit modification, revocation and reissuance, or termination, or a notification of plarmed changes or anticipated noncomphance does not annul any General Permit condition. If any toxic effluent standard or prohibition (including any schedule of comphance Specified in such effluent standard or prohibition) is promulgated under Secfion 307(a) of The CWA for a toxic poUutant which is present in the discharge and that standard or prohibition is more stringent than any hmitation on the poUutant in this General Permit, this Genera] Permit shaU be modified or revoked and reissued to conform to the toxic effluent standard or prohibition and the dischargers so notified. 3. Need to Halt or Reduce Activitv Not a Defense It shaU not be a defense for a discharger in an enforcement acfion that it would have been necessary to halt or reduce the permitted acfivity in order to maintain comphance with the conditions of this General Permit. 20 4. Duty to Mitigate The discharger shall take aU responsible steps to minimize or prevent any discharge in violation ofthis General Permit, which has a reasonable hkehhood of adversely affecfing human health or the environment. 5. Proper Operation and Maintenance The discharger shall at all times properly operate and maintain any facihties and systems of treatment and control (and related appurtenances) which are mstaUed or used by the discharger to achieve compliance with the conditions of this General Permit and with the requuements of Storm Water PoUution Prevention Plans (SWPPP). Proper operation and maintenance also includes adequate laboratory controls and appropriate quahty assurance procedures. Proper operation and maintenance may requue the operation of backup or auxiliary facihties or sunilar systems instaUed by a discharger when necessary to achieve comphance with the conditions of this General Permit. 6. Property Rights This General Pemiit does not convey any property rights of any sort or any sort of any exclusive privUeges, nor does it authorize any injury to private property or any invasion of personal rights, nor does it authorize any infringement of Federal, State, or local laws or regulations. 7. Duty to Provide Information The discharger shall fumish the RWQCB, State Water Resources Control Board, or USEPA, within a reasonable time, any requested information to detennine comphance with this General Permit. The discharger shaU also fiimish, upon request, copies of records required to be kept by this General Permit. 8. Inspection and entry The discharger shaU aUow the RWQCB, SWRCB , USEPA, and/or, m the case of constmcfion sites which discharge through a municipal separate storm sewer, an authorized representative of the municipal operator of the separate storm sewer system receiving the discharge, upon the presentation of credentials and other docfunents as may be required by law, to: a. Enter upon the discharger* s premises at reasonable times where a regulated constmction activity is bemg conducted or where records must be kept under the cx)nditions of this General Pennit; b. Acxess and copy at reasonable times any records that must be kept under the conditions of tiiis General Permit. 21 c. Inspect at reasonable times the complete constmction site, including any oflf-site staging areas or material storage areas, and the erosion/sediment controls; and d. Sample or monitor at reasonable times for the purpose of ensuring Cieneral Permit compliance. 9. Signatory Requirements a. All Notice of Intents (NOIs), Notice of Terminations (NOTs), SWPPPs, Certifications, and reports prepared in accordance with this Order submitted to the SWRCB shaU be signed as foUows: (1) For a corporation: By a responsible corporate officer. For the purpose of this Section, a responsible corporate officer means: (a) a president, secretary, treasurer, or vice president of the corporation in charge of a principal business function, or any other person who performs simUar policy or decision-making fimctions for the corporation, or (b) the manager of the constmction activity if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; (2) For a partnership or sole proprietorship: By a general partner or the Proprietor, respectively; or (3) For a municipahty. State, Federal, or other pubhc agency: By either a principal executive officer, ranking elecf ed official, or duly authorized representative. The principal executive officer of a Federal agency includes the chief executive officer of the agency or the senior executive officer having responsibihty for the overaU operations of a principal geographic unit of the agency (e.g.. Regional Administrator of USEPA). b. AU SWPPPs, reports, certifications, or other information required by the Cieneral Pennit and/or requested by the RWQCB. USEPA, or the local storm water management agency shaU be signed by a person described above or by a duly authorized representative. A person is a duly authorized representative if: (1) The authorization is made in writing by a person described above and Retained as part of the SWPPP; or 22 (2) The authorization specifies either an individual or a position having responsibUity for the overall operation of the constmction activity, such as the position of manager, operator, superintendent, or position of equivalent responsibihty, or an individual or position having overaU responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position). c. If an authorization is no longer accurate because a different individual or position has responsibUity for the overaU operation of the constmction activity, a new authorization must be attached to the SWPPP prior to submittal of any reports, information, or certifications to be signed by the authorized representative. 10. Certification Any person signing documents under Section C, Provision 9 above, shall make the following certification: "I certify under penalty of law that this document and aU attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons duectly responsible for gathering the information, to the best of my knowledge and behef, the information submitted is, tme, aceurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibUity of fine and imprisonment for knowing violations." 11. Anticipated Noncomphance The discharger wUl give advance notice to the RWQCB and local storm water management agency of any plarmed changes in the constmcfion activity which may result in noncximphance with Cieneral Permit requirements. 12. Penalties for Falsification of Reports Section 309(c)(4) of the CWA provides that any person who knowingly makes any false material statement, representation, or certification in any record or other document submitted or required to be maintained under this Cieneral Permit, including reports of noncomphance shaU upon conviction, be punished by a fine of not more than $10,000 or by imprisonment for not more than two years or by both. 23 13. OU and Hazardous Substance Liabihty Nothing in this General Pemiit shall be constmed to preclude the institution of any legal action or relieve the discharger from any responsibilities, liabilities, or penalties to which the discharger is or may be subject top under Section 311 of the CWA. 14. Severability The provisions of this General Pennit are severable; and, if any provision of this Greneral Permit or the apphcation of any provision of this Cieneral Pennit to any chcumstance is held invalid, the application of such provision to other cucumstances and the remainder of this Cieneral Permit shall not be affected thereby. 15. Reopener Clause This General Permit may be modified, revoked and reissued, or tenninated for cause due to promulgation of amended regulations, receipt of USEPA guidance conceming regulated acf ivities, judicial decision, or in accordance with 40 Code of Federal Regulations (CFR) 122.62,122.63,122.64, and 124.5 16. Penalties for Violations of Pennit Conditions a. Section 309 of the CWA provides significant penalties for any person who Violates a pennit condition implementing Sections 301, 302, 306, 307, 308, 318, or 405 of the CWA or any permit condition or hmitation implementing any such section in a pemiit issued under Section 402. Any person who violates any permit condition of this Cieneral Permit is subject to a civil penalty not to exceed $27,500 per calendar day of such violation, as weU as any other appropriate sanction provided by Section 309 ofthe CWA. b. The Porter-Cologne Water C^iahty Conttol Act also provides for civU and criminal penalties which in some cases are greater than those under the CWA. 17. AvailabiUty A copy of this Cieneral Permit shaU be maintained at the constmction site during constmction activity and be avaUable to operating persormel. 18. Transfers This Cieneral Permit is not ttansferable. A new owmer of an ongoing constmction acfivity must submit a NOI in aceordance with the requirements of this Cieneral Permit to be authorized to discharge under this Cieneral Pennit. An owner who seUs property covered by this General Pennit shaU mform the new owner of the duty to file a NOI and shaU provide the new owner with a copy of this Cieneral Pennit. 24 19. Continuation of Expired Permit This General Pemiit continues m force and eflfect untU a new General Permit is issued or the SWRCB rescinds this Cieneral Permit. Only those dischargers authorized to discharge under the expiring General Permit are covered by the continued Cieneral Pemiit. 25 Attachment 1 SWRCB AND RWQCB CONTACT LIST STATE WATER RESOURCES CONTROL BOARD Division of Water Quality Attention: Storm Water Permit Unit P.O. Box 1977 Sacramento. CA 95812-1977 t916) 657-1146 FAX:(916)657-1011 Contact: Snice Fuy/mo/o 1) NORTH COAST REGION SO Skylane Boulevard. Suite A Santa Rosa, CA 95403 Contact: Nathan Queries (707)576-2220, FAX:(707)523-0135 Em£ul:quam@rbI.swrcb.ca.gov 2) SAN FRANCISCO BAY REGION 1515 Clay Street, Suite 1400 Oakland, CA 94612 Contact: Gayleen Perriera (510)622-2407 FAX (510)622- 2460 Email: gp@rb2.swrcb.ca.gov 3) CENTRAL COAST REGION Higuera Street, Suite 200 San Luis Obispo, CA 93401- 5427 Contact: Jennifer Bitting (805) 549-3147 FAX: (805) 543-0397 EmaU: jbitting@rb3.swrcb.ca.gov 4) LOS ANGELES REGION 20 W. 4tfa Street. Suite 200 Los Angeles, CA 90013 Contact: Wayne Chiou (Inland Los Angeles) (213) 576-6664 FAX:(213)576-6686 Email: wchioii@rb4.5wrcb.ca.gov Contact: Marie Pumford (Ventura County) 213)576-6657 FAX: (213) 576-6686 Email: nq}uroford@rb4.swrcb.ca.gov Contact: Carios Uminaga (Coastal) (213)576-6655 FAX (213) 576-6686 EmaU: cuiraiiag@it>4.swrcb.ca.g0v SS) CENTRAL VALLEY REGION Sacramento OfQce 3443 Routier Road. Suite A Sacramento. CA 95827-3098 Contact: Leo Sarmiento (916) 255-3049 FAX: (916) 255-3015 Email: sannienl@rb5s.swrcb.ca.gov 5F) CENTRAL VALLEY REGION Fresno Branch Office 3614 East Ashlan Avenue Fresno, CA 93726 Contact: Janna Bennett (Tulare <& Kem Counties) (559) 445-5919 FAX: (559) 445-5910 Eaaal: bennettj @rb5f swrcb.ca.gov Contact: Qreg Kelly (Madera, Mariposa, Merced, Freaio & Kings Counties) (559) 445-5500 FAX: (559)445-5910 Email: kellyg@rb5fswrcb.ca.gov 5R) CENTRAL VALLEY REGION Redding Branch Office 415 KnoUcrest Drive Redding, CA 96002 Contact: Carole Cro^. (530) 224-4849 FAX: (530) 224^857 Email: crowec@ib5r.swrcb.ca.gov 6SLT) LAHONTAN REGION South Lake Tahoe Office 2501 Lake Tahoe Boulevard South Lake Tahoe, CA 96150 Contact: Chris Adair (530) 542-5433 FAX: (530) 544-2271 Email: adaic@rb6s.swrcb.ca.gov eV) LAHONTAN REGION Victorville Office 15428 Civic Drive. Suite 100 VictorviUe, CA 92392 Contact: Jehiel Cass (760) 241-7377 FAX: (760) 241- 7308 &nail: jcass@rb6v.swrcb.ca.gov 7) COLORADO RTVER BASIN REGION 73-720 Fred Waring Drive, Suite 100 Pahn Desert, CA 92260 Contact: AbdiHaiie (760) 776-8935 FAX: (760) 341- 6820 Email: haila@ib7.swrcb.ca.gov Contact: Rosalyn Fleming (760) 241-7364 FAX: (760) 341- 6820 Email: flemF@rb7.swrcb.ca.gov 8) SANTA ANA REGION 3737 Main Street, Suite 500 Riverside. CA 92501-3339 Contact: Michael Roth (Riverside County) (909) 320-2027 FAX: (909) 781- 6288 Email: mFotfa@rb8.swrcfo.ca.gov Contact: Mark Smythe (Orange County) (909) 782-4998 FAX: (909) 781- 6288 Email: msmythe@rb8.swrcb.ca.gov Contact: Bob Whitaker (Sara Bemardino County) (909) 782-4993 FAX: (909) 781- 6288 Email: bi^take@rb8.swrcb.ca.gov 9) SAN DIEGO REGION 9771 Clairemont Mesa Boulevard, Suite A San Diego, CA 92124 Contact: JancLedford (619)467-3272 FAX: (619) 571- 6972 EmaU: ledf)(^ib9.swFcb.ca.gov NOTICE OF INTENT (NOI) TO COMPLY WITH THE TERMS OF THE GENERAL PERMIT TO DISCHARGE STORM WATER ASSOCIATED WITH CONSTRUCTION ACTIVITY GENERAL INSTRUCTIONS Who Must Submit Discharges of storm water associated with constmction that results in the disturbance of five acres or more of land must apply for coverage under the Cieneral Constmcfion Activities Storm Water Pemiit (General Permit). Constmction activity which is a part of a larger common area of development or sale must also be permitted. (For example, if 4 acres of a 20-acre subdivision is disturbed by constmction activities, and the remaining 16 acres is to be developed at a future date, the property owner must obtain a Cieneral Storm Water Permit for the 4-acre project). Constmction activity includes, but is not limited to: clearing, grading, demohtion, excavation, constmction of new stmctures, and reconstmcf ion of existing facUities involving removal and replacement that results in soU distuii>ance. This includes constmction access roads, staging areas, storage areas, stockpiles, and any off-site areas which receive mn-off" from the constmction project such as discharge points into a receiving water. Constmction activity does not include routine maintenance to maintam original line and grade, hydrauhc capacity, or original purpose of the facihty. The owner of the land where the constmction acfivity is occurring is responsible for obtaining a pennit. Owners may obtain coverage under the Cieneral Permit by filing a NOI in accx)rdance with the foUowing instmctions. Coverage for constmction activity conducted on easements (e.g., pipeline constmction) or on nearby properties by agreement or permission, or by an owner or lessee of a mineral estate (oU, gas, geothermal, aggregate, precious metals, and/or industrial minerals) entitled to conduct the activities, shaU be obtained by the entityTesponsible for the constmction activity. Linear constmction projects which wiU have cx)nstmction activity occurring in one or more than one Region should contact the State Water Resources Conttol Board at the number hsted below prior to submitting an NOI apphcation for specific infonnation related to the use of the NOI form. Constmcition Activitv Not Covered Bv This Cieneral Permit Storm water discharges in the Lake Tahoe Hydrologic Unit vriil be regulated by a separate permit(s) adopted by the Cahfomia Regional Water Quahty Control Board, Lahontan Region, and wiU not be covered under the State Water Resources Control Board's (SWRCB) Cieneral Permit. Storm water chscharges on Indian Lands vriU be regulated by the U.S. Environmental Protection Agency. Where to Apply The NOI form, vicinity map, and appropriate fee must be mailed to the SWRCB at the following address: State Water Resources Control Board Division of Water (Juahty Attn: Storm Water Pennit Unit P.O. Box 1977 Sacramento, CA 95812-1977 When to Apply Property owners proposing to conduct constmction activities subject to this General Permit must file a Notice of Intent prior to the commencement of constmction activity. Fees The annual fee is either $250 or $500 depending on the constmction site location. See Enclosure 1 of the Pennit to detennine your fee. Checks should be made payable to: SWRCB. Completing the Notice of Intent (NOD The submittal to obtain coverage under the Cieneral Permit must include a completed NOI Form (Notice of Intent, attached), a vicinity map, and the appropriate annual fee. The NOI must be completely and accurately fUled out; the vicinity map and aimual fee must be included with the NOI or the submittal is considered incomplete and wiU be rejected. A constmction site is considered to be covered by the Cieneral Permit upon fihng a complete NOI submittal, and hnplementation of a defensible Storm Water PoUution Prevention Plan (SWPPP). Upon receipt of a complete NOI submittal, each discharger wiU be sent a receipt letter containing the waste discharger's identification (WDID) number. Ouestions? If you have any questions on completing the NOI please caU the SWRCB at (916) 657-1146. NOI-LINE-BY-LINE DESTRUCTIONS Please type or print when completmg the NOI Fomm and vicmity map. SECTION 1~N0I STATUS I Mark one of the two boxes at the top portion of the NOI. Check box 1 if the NOI is being completed for new constmction. Check box 2 if the NOI is bemg submitted to report changes for a constmction site already covered by the General Pemiit. An example of a change that warrants I a resubmittal of the NOI is a change of total area of the constmction site. The permit is non- • transferable, a change of ownership requues a Notice of Tennination (NOT) submittal and a new NOI. Complete only those portions of the NOI that apply to the changes (the NOI must always I be signed). If box 2 is checked, the WDID number must be included. SECTION n-PROPERTY OWNER Enter the constmction site owner's official or legal name and address; contact person (if other than owner), title, and telephone number. SECTION m-DEVELOPER / CONTRACTOR INFORMATION I Enter the name of the developer's (or general contractor's) official or legal name, adckess, contact person, title, and telephone number. The contact person should be someone who is famihar vrith I the constmction site and is responsible for comphance and oversight of the general pennit. SECTION TV-CONSTRUCTION PROJECT INFORMATION I Enter the project name, site address, county, city, (or nearest city if constmction is occurring in an unmcorporated area), zip code, and telephone number (if any) of the constmcfion site. Include I an emergency contact telephone or pager number. Constmction site information should include latitude and longitude designations, ttacf numbers, and/or mUe post mailcers, if apphcable. The site contact person should be someone who is famihar with the projecf, site plans, SWPPP, and monitoring program. AU NOIs must be accompanied by a vicuiity map. Part A: Enter the total size in acres of aU areas associated with constmction activity, including aU access roads. Part B. Enter the total size in acres of the area to be disturbed by constmcfion activity and the percentage of the area hsted in Part A above that this represents. Part C: Enter the percentage of the site that is impervious (areas where water c^aimot soak into the ground, such as concrete, asphalt, rooftops, etc.) before and after constmction.. PartD: Include ttact numbers, if avaUable. Part E: Enter the mUepost marker number at the projecf site location. Part F: Indicate whether the constmction site is part of a larger common plan of development or sale. For example, if the constmction activity is occurring on a two-acre site which is within a development that is five acres or greater, answer yes. Part G: Enter the name of the development (e.g. "QuaU Ridge Subdivision," "Orange Valley Estates," etc.). Part H: Indicate when constmction wiU begin (month, day, year). When a NOI is being submitted due to a change in ownership, the commencement date should be the date the new ownership took effect. Part I: Indicate the percentage of the total project area to be mass graded. Part J: Enter the estimated completion dates for the mass grading acfivities and for the project completion. Part K: Indicate the type(s) of constmction taking place. For example, 'Transportation" should be checked for the constmction of roads; "Utihty" should be checked for instaUation of sewer, electric, or telephone systems. Include a description of the major constmction activities, (e.g., 20 single family homes, a supermarket, an office buUding, a facf ory, etc.) SECTION V - BILLING ADDRESS To continue coverage under the Cieneral Permit, the aimual fee must be paid. Indicate where the annual fee invoice should be maUed by checkmg one of the foUowing boxes: Owner: Sent to the owners address as it appears in Section n. Developer/Contractor: Sent to the developer's address as it appears in Section HI. Other: Sent to a different address and enter that address in the spaces provided. SECTION VI - REGULATORY STATUS Indicate whether or not the site is subject to local erosion/sediment conttol ordinances. Indicate Whether the erosion/sediment control plan designed to comply with the ordinance addresses the constmction of infrastmcture and stmcfures in adchtion to grading. Identify the name telephone number of the local agency, if apphcable. SECTION Vn-RECETVING WATER INFORMATION Part A: Indicate whether the storm water mnoff from the constmction site discharges indirectly to waters of the United States, directly to waters of the United States, or to a separate storm drain system. Indirect discharges include discharges that may fiow overland across adjacent properties or rights-of-way prior to discharging into waters of the United States. Enter the name of the OAvner/operator of the relevant storm drain system, if applicable. Storm water discharges directly to waters of the United States wiU typicaUy have an outfaU stmcture directly from the facihty to a river, lake, creek, stream, bay, ocean, etc. Discharges to separate storm sewer systems are those that discharge to a coUection system operated by municipalities, flood control districts, utUities, or similar entities. Part B: Enter the name of the receiving water. Regardless of point of discharge, the owner must determme the receivmg water for the constmction site's storm water discharge. Enter the name of the receiving water. SECTION Vm-IMPLEMENTATION OF NPDES PERMIT REQUIREMENTS Part A: Indicate the status of the SWPPP, date prepared, or availabihty for review. Also indicate if a tentative constmction schedule has been included hi the SWPPP (the inclusion of a constmction activity schedule is a mandatory SWPPP requirement). Part B: Provide information conceming the status of the development of a monitoring program, a component of the SWPPP which outlines an inspection and maintenance schedule for the proposed Best Management Practices (BMPs). Provide name and phone number of program preparer. Part C: Provide the name and phone numbers of the responsible party or parties designated to insure comphance with all elements of the Cieneral Permit and SWPPP. SECTION IX~VICINITY MAP AND FEE Provide a "to scale" or ''to approximate scale" drawing of the constmction site and the immediate sunounding area. Whenever possible, limit the nap to an 8.5" x 11" or 11" x IT' sheet of paper. At a minimum, the map must show the site perimeter, the geographic features sunounding the site, and general topography and a north arrow. The map must also include the location of the constmction project m relation to named stteets, roads, intersections, or landmarks. A NOI containing a map which does not clearly indicate the location of the constmction project wiU be rejected. Do not submit blueprints unless they meet the above referenced size limits. SECTION X - CERTIFICATIONS This section must be completed by the owner or signatory agent of the constmction site*. The certification provides assurances that the NOI and vicinity map were completed in an accurate and complete fashion and with the knowledge that penalties exist for providing false information. Certification also requires the owner to comply with the provisions in the General Permit. *For a corporation: A responsible corporate officer (or authorized inchvidual). For a partnership or sole proprietorship: A general partner or the proprietor, respectively. For a municipality. State, Federal, or other pubhc agency: Either a principal executive officer, ranking elected official, or duly authorized representative. I I I i I I aiatt WalCf Htsources CoiiWol Board NOTICE OF INTENT TO COMPLY WITH THE TERMS OF THE GENERAL PERMIT TO DISCHARGE STORM WATER ASSOCIATED WITH CONSTRUCTION ACTIVITY (WQ ORDER No. 99-08-DWO) AllitclllMCIlt 2 iil I. NOI STATUS (SEE INSTRUCTIONS) MARK ONLY ONE ITEM 1. • New Consltuclioi) 2. D Change of Informalion fof WDIOff II. PROPERTY OWNER 1 Haim Conlacl Person j Moling Address 1 lille Slale Zip I'liurte ( ) III. DEVELOPER/CONTRACTOR INFORMATION Ueveloper/Conbador Conlacl Person | Matlmg Address lille 1 Cily Slale Zip Phone ( ) IV. CONSTRUCTION PROJECT INFORMATION Physical Addiess/Localion Ciry (or neaiesl Cily) A. lulal sue ol conslruclion site area: Acres 6 Tolal area lo be dislurbed: Aaes (% ol Iotal. J Siie Conlact Person LaUlude lip Longitude OOI inly Site Ptwne NumtMr { L_ C. Peiccnt ol site unperviousness (including rooftops): Oeloie Conslruclion: V. Aller Conslruclion' % Lnieiycttcy fliuiif; Numbei ( I D Tract Nunibei(s). E. Mile PoslMniliei: f Is Ihe constiuclion site part of a larger common plan of developirieni or sale? • YES n UO G. Name of pian or development: H Construction comrnerx:ernent date /_ I. % of site lo be mass graded: J. Protected conslruetion dales' Complele grading: I / Cuinplcle |iio|r>(:l K. Type o( Conslruclion (Check aU lhal apply): 1 O Residential 2. Q Cofnmerdal UlilHy Uescripliori: 3. • Induslrial 4. Q Reconstruction 1'ranspoilalion 7. D OMH»r iPlcaae LM) .... V. BILLING INFORMATION SEND BILL TO: • OWNER (as in H. above) D DEVELOPER (.IS in III nbove) • OTHER ^riter^wilOTmalioj^^ Name Maiiiny Address Cily"'~ Contnct Person Phone/Tax MJII! "I' I. REGULATORY STATUS A. Has a local agency approved a required erosionysedin»enl control plan? ^ ^^'^ ^ Does'the erosiorWsedimenI control plan address conslruclion adivilies sucli as infraslruciure and structures? D ^ Name of local agency: . Phone: J )_ B. Is this pf<)|ecl or any part Ihereof. sul)ject to condilions imposed under a CWA Seclion 404 permil of 401 Waler Oualily Cerlification? O YES • NO If yes, provide details: . II. RECEIVING WATER INFORMATION A. Does the storm water runoff from the construction site discharge lo (Check all that apply): 1. G Indirectly to waters of the U.S. 2. D Sionn drain system - Enter owner's name: 3. • Directly to waters of U.S. (e.g.. river, lake, creek, stream, bay. ocean, etc.) B. Name of receiving water: (river, lake, creek, stream, bay. ocean): III. IMPLEMENTATION OF NPDES PERMIT REQUIREMENTS A STORM WATER POLLUTION PREVENTION PLAN (SWPPP) (check one) D A SWPPP has been prepared for this facility and is available for review: Oate Prepared: / / Date Amended: • A SWPPP will be prepared artd ready for review by (enter date): / / • A lenlative schedule has been included in the SWPPP for activities such as grading, street construction, home construction, etc. B. MONITORING PROGRAM (~| A monitoring and mainlenance schedule has twen developed lhal inciudes inspection ol llie conslruclion BMPs beiore aniicipaled storm events and after actual storm events and is available tor review. II checked above: A qualilied person has been assigned responsibility lor pre-slorm and posl-slorm BMP inspeclions _ lo identify ellectiveness and necessary repaiis or design changes ~ I—I YES LJ NO Name: Phone: ( ) - C PERMIT COMPLIANCE RESPONSIBILITY A qualified person has been assigned responsibility to ensure lull compliance wilh Ihe Permit, and lo Impiemenl all elements of the Storm Waler Pollulion Prevention Plan including: 1 Preparing an annual compliance evalualton D YES QNO Name: Plione: J ) ~ 2 EWminaling aH unauthofiied discharges D YES D NO IX. VICINITY MAP AND FEE (must show site location in relation to nearest named streets, intersections, etc.) [Have you included a vidnily map with Ihis subminal? _ Q YES Q NO Have you included payment of Ihe annual fee with Ihis submittal? Q YES O^O X. CERTIFICATIONS *l certify under penalty of law lhat this document and all attachments were prepared under my direction and supervision in accordance with a system designed to assure lhat qualified personnei properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage Ihe system, or those persons directly responsible for gathering the information, the informalion submitted is. to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine or imprisonment. In addition. I certify that Ihe provisions of Ihe permit, including the development and implementation of a Storm Water Pollution Prevention Plan and a Monitoring Program Plan will be complied wilh." Printed Name: Signature: Ditt: Tille: 303d Listed Water Bodies for Sedimentation REGION WATER BODY NAME CODE POLLUTANT 2 2 2 2 2 2 2 2 2 2 MATTOLE RIVER TRINITY RIVER. SOUTH FORK REDWOOD CREEK MAD RIVER ELK RIVER EEL RIVER, SOUTH FORK EEL RIVER, NORTH FORK TRINITY RIVER EEL, RIVER, MIDDLE FORK MAD RIVER TEN MILE RIVER NOYO RIVER BIG RIVER ALBION RIVER NAVARRO RIVER GARCIA RIVER GUALALA RIVER RUSSIAN RIVER TOMKI CREEK VAN DUZEN RIVER EEL RIVER DELTA EEL RIVER, MIDDLE MAIN FORK ESTERO AMERICANO NAVARRO RIVER DELTA EEL RIVER, UPPER MAIN FORK FRESHWATER CREEK SCOTT RIVER TOMALES BAY NAPA RIVER SONOMA CREEK PETALUMA RIVER LAGUNITAS CREEK WALKER CREEK SAN GREGORIO CREEK SAN FRANCISQUITO CREEK PESCADERO CREEK (REG2) BUTANO CREEK 1100 1100 1100 1100 1100 1100 1100 1100 1100 2500 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 1100 100 Sedimentation/sHtation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Turbidity Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation Sedimentation/siltation 6 BLACKWOOD CREEK 1100 Sedimentation/siltation 6 GOODALE CREEK 1100 Sedimentation/siltation 6 EAST WALKER RIVER 1100 Sedimentation/siltation 6 HEAVENLY VALLEY CREEK 1100 Sedimentation/siltation 6 WOLF CREEK (1) 1100 Sedimentation/siltation 6 WEST WALKER RIVER 1100 Sedimentation/siltation 6 HOT SPRINGS CANYON CREEK 1100 Sedimentation/siltation 6 BRONCO CREEK 1100 Sedimentation/siltation 6 SQUAW CREEK 1100 Sedimentation/siltation 7 IMPERIAL VALLEY DRAINS 1100 Sedimentation/siltation 7 NEW RIVER (R7) 1100 Sedimentation/siltation 7 ALAMO RIVER 1100 Sedimentation/siltation 8 SAN DIEGO CREEK, REACH 1 1100 Sedimentation/siltation 8 RATHBONE (RATHBUN) CREEK 1100 Sedimentation/siltation 8 SAN DIEGO CREEK, REACH 2 1100 Sedimentation/siltation 8 UPPER NEWPORT BAY 1100 Sedimentation/siltation ECOLOGICAL RESERVE 8 BIG BEAR LAKE 1100 Sedimentation/siltation 8 ELSINORE, LAKE 1100 Sedimentation/siltation 9 SAN ELIJO LAGOON 1100 Sedimentation/siltation 9 LOS PENASQUITOS LAGOON 1100 Sedimentation/siltation 9 AGUA HEDIONDA LAGOON 1100 Sedimentation/siltation 9 BUENA VISTA LAGOON 1100 Sedimentation/siltation APPENDIX W W DESCRIPTION AND INSTRUCTIONS FOR FORMS: ANNUAL COMPLIANCE CERTIFICATION On July 1 of each year throughout the constmction period, you must certity that you have been in compliance with your Storm Water Pollution Prevention Plan (SWPPP) and the National Pollutant Discharge Elimination System (NPDES) General Permit for Storm Water Discharges Associated with Constmction Activity, Order No. CAS000002. This certification must be based on actual site inspections, as requued in the permit. (Dischargers who cannot certify compliance must notify the appropriate Regional Water Quality Control Board (RWQCB). The notification requirements are stated in the Pennit, Section B 6). AMENDMENTS TO SWPPP All amendments to the SWPPP shall be recorded on this form. Amendments may be requued when activities change which afifect Best Management Practices (BMPs) and pollutant discharges. FIELD MAINTENANCE CONTACT PERSON Upon receipt of this SWPPP, the names and phone numbers of the appropriate field persoimel should be provided on this form. This form should be amended and/or revised, as necessary, throughout constmction. INSPECTION CHECKLISTS Site inspections are to occur prior to and after every ramfall event. The dates of inspection and all observances during these inspections should be recorded on these forms. Use the checklists and guidelmes to document each inspection, MONITORING RECORD The Monitoring Record should be used to document the dates of inspection, the individual(s) who peiformed the inspection, and the observations, LISTS OF CONTRACTORS AND SUBCONTRACTORS Upon receipt of this SWPPP, the names, addresses, and phone numbers of all project contractors must be provided. This list should be amended and/or revised as necessary through the constmction period, NOTICE OF TERMINATION (NOT) The NOT is submitted to the Executive Officer of the RWQCB to terminate coverage under NPDES General Permit No, CAS000002. PLEASE NOTE: Records of all inspections and (non)comphance reporting must be retained for a period of at least three years. This SWPPP shall be kept on-site during the constmction activity and made available to representatives fi'om the RWQCB and/or the local agency. ANNUAL COMPLIANCE CERTIFICATION Compliance Certification for tiie Period of: Construction Project: "Based upon the data received from the monitoring program outlined in the Storm Water Pollution Prevention Plan (SWPPP) and an evaluation of the operation of the control measures implemented on the project site, I certifythat the construction activity is in compliance with Order No, 92-08 DWQ, National Pollutant Discharge Elunination System General Permit No. CAS000002, and the prorisions of this SWPPP. The field inspections indicate that the measures identified in the SWPPP to reduce pollutant loadings generated from the constmction site were adequate and properly implemented in accordance with the tenns of the pennit, I certify that the SWPPP implemented for this construction project has been efifective," "I certify under penalty of law that this document and all attachments were prepared under my direction or superrision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiiy of the person or persons ^o manage the system or those persons directly responsible for gathering the infonnation, the information submitted is, to the best of my knowledge and belief, tme, accurate, and complete, I am aware that there are significant penalties for submitting felse information, including the possibility of fine and imprisonment for knowing riolations." Printed Name: Signature: Titie: Conipany: Date: MONITORING RECORD INSPECTinN DATE DATE QF STORM INSPECTpW FACILITV INSPECTEP OBSERVATinNR/ COMMENTS RECOMMENDATIONS FOP REPAIR/MAINTENANrF DATE OF MAINTENANrr Signed By: Date AMENDMENTS TO SWPPP All amendments made to this SWPPP shall be documented in this table. ^ lyiAmTTNANrE CONTACT Pf^ON (1) VISUAL INSPECTION CHECKLIST SITE DATE Description: Suggested areas to inspect; All graded surfaces All walls All stmctures Vegetation (landscaping) Erosion and sediment controls Other protective devices i.e. - loading and unloading operations outdoor storage areas significant dust or particulate generating processes on-site waste management and disposal practices Visual Inspection Checklist Action Required YorN Broken or cracked walls, curbs or other physical barriers designed to prevent storm water from reaching stored material? Windblown dry material/chemicals? Tom bags or bags exposed to rain water? Corroded or leaking pipes? Leaking pumps and/or hose connections? Improperly maintained or overloaded conveyance systems? Vegetation growth, density cover, healthy, seeded growth? Blockage/erosion of sediment and erosion control devices? Corroded cans, dmms, tanks, tank supports and tank drain valves? COMMENTS OR CORRECTIVE ACTION REQUIRED Signed Bv: Date: (2) GOOD HOUSEKEEPING INSPECTION CHECKLIST SITE DATE Good Housekeeping Checklist ActioD Required Y or N Are outside areas kept in a neat and orderly condition? Is there evidence of drips or leaks from equipment or machinery outside? Is garbage removed regularly? Is there evidence on the ground of dust from any operations or processes? Are cleanup procedures used for spilled sohds? Are good housekeeping procedures and reminders posted in appropriate locations around the site? Are there regular housekeeping inspections? Is good housekeeping included in any safety training program? COMMENTSiQR CORRECTIVE ACTION REQUmED Signed By: Date: (3) SFTE ASSESSMENT INSPECTION CHECKLIST SITE DATE SITE ASSESSMENT CHECKLIST ACTION REQUIRED YORN Are there signs of poor housekeeping (uncovered material, uncollected garbage, cluttered walkways)? Are there spots, pools, puddles or other traces of oil, grease and other <;hemicals on the ground? Is there residue, discolorations, conosion of valves, vents, pipes, or other drainage in the area? Do you see leaking equipment, pipes, containers, dams or walls? Are there areas where absorbent inaterials regulariy used (safe step, sawdust, etc)? Do you notice signs such as smoke, dust or fiimes which indicate material losses? Do you smell strange odors, experience eye, nose or throat irritations when you first enter an area? These are mdications of material losses, Do storage containers, stacked dmms, shelving too small to properiy handle inventory, or other indications of poor storage procedures exist? Are containers propeiiy labeled? Is vegetation growth healthy^ COMMENTS OR CORRECTIVE ACTION REQUIRED Signed By: Date: INSPECTION CHECKLIST PROTECTIVE DEVICES INSPECT FOR: MAINTENANCE MEASURES V^^iOQ o Rills or gullies forming o Bare soil patdies o Sediment at toe of slope o Insped for adequate stand of vegetation, re.seed o Re-seed bare areas o Identiiy sediment source, control at source Dikes o Gully on slope below dike bi^ch; low ^ot on dike 0 Loose soil o Erosion of dike face o Fill gully or low spot, re-compact o Remove and re-compact 0 Install adequate protection Swales 0 Gully on slope htAaw swale 0 Water ponded in swale o Sediment or debris in diannd o Erosion of un-lined channd surface o Erosion of channd lining o Fill gully; restore positive drainage o Properly grade to provide positive drainage and prevent ponding o Identify source of sediment or debris; install control measures at source. Remove sediment 0 Install erosion protection o Check constniction. Install adequate protection Pipe slope drain or chute o Blodced inlet or outlet 0 Runoffbypassing inlet o Erosion at outlet o Remove blockage o Check construction. Oiedc for clogging and chedc grade for positive drainage into inlet 0 Oiedc construction. Install adequate protection Grassed waterways 0 Bare areas 0 Tall growth 0 Re-v^etate bare areas 0 Restore channd oonditions per plan PROTECTIVE DEVICES Riprap lined waterway Sih fence Chedc dam Inlet protection Outlet protection INSPECT FOR: o Scour under riprap 0 Uidercutting offence o Fence collapsing Tom fabric Runoff draining around barrier Sediment level near top offence o Sediment accumulation o Flow escaping around sides of diedc dam o Displacement of sandbag, stones or straw bates o Flooding around or below iniet o Undercutting of bales or sik fence, bale displacement, tom fabric, eta o Dislodgol stones o Erosion blew outlet o Outlet scour MAINTENANCE MEASURES o Fill undercut and re-compact o R^lace section o Replace tom fabric Extend fence and/or re-grade to prevent Remove sediment, dispose of properly o Remove sediment, di^ose of properly o Chedc construdion, repair/restore as necessary o Reconstruct per plan o Chedc grading/constniction. Chedc for dogging and restore for positive drainage into inlet o Fill undercut and re-compact o Restore erosion protection per plan o Check construction. Repair accordingly o Chedc (instruction. Repair accordingly t PROTECTIVE DEVICES Sediment traps and basins INSPECT FOR Sedinwnt level near outlet elevation Obstructed outlet Basin net dewatered between storms Damaged embankments Spilhvay erosion Outlet erosion Riser flotation o Excessive disdiargp to and fiom basin or trap o Sediment storage zone fills too quidcly MAINTENANCE MEASURES Remove sediment, di^ose of properly Remove obstruction Check construction, dean openings in outlet Repair damaged embankments Qiedc construction. Repair accordingly Caieck construction. Repair accordingly. Ojeck anchor blodc construction. Restore accordingly. Check riser couplings. Oieck construction. Restore accordingly Check construction. Restore accordingly LIST OF CONTRAC i UKt> ANU sutwJuiN i tuw^ i KJtsji PROJECT: Grading Contractor: Address: City: Slate: Teiephoae: Fax: _ Contact: Address: Address: Building Contractor: Address: Date Started: Date Completed: Underground Contractor: City: State: Tdephone: Fax: _ Coittad: Date Started: Dale Conpleted: Dry Utility Conlraclor: Cily: Slate: Tdephone: [ Fax: _ Contact: ' Date Started: Date Completed: Paving Conlractor Address: City? SUte: Tdcfdione: Fax: _ ConUd: Date Started: Date Completed: City: SUrte: Tdepiuiae: Fax: Contact: Date Started: Date Completed: Landscape Contraaor: Address: City: State: Telephone: FAX: Conlact: Date Started: Date conpleted: Other Contractor: Address: City: State: Tele{dione: FAX: Contact: DateSUrted: Dale Ccmpleled: INSTRUCTIONS FOR COMPLETING NOTICE OF TERMINATION FOR CONSTRUCTION ACTIVITY Who Mav File Dischargers who are presentiy covered under NPDES General Pennit No, CAS000002 for discharge of storm water associated with constmction actirity may submit a Notice of Tennination when they meet one of the following crit^a, 1. The construction project has been completed and the following conditions have been met: aU. elements ofthe Stormwater Pollution Prevention Plan have been completed; construction materials and equipment maintenance waste have been disposed of properly; the site is in comphance with all local stonn water management requirements including erosion/sediment control requirements and the appropriate use permits have been obtained; and a post- constmction storm water operation and management plan is in place. 2. Construction actirities have been suspended, either temporarily or indefinitely and the following conditions have been: all elements ofthe Stonnwater Pollution Prevention Plan have been completed; constraction materials and equipment maintenance waste have been disposed of properly; aU denuded areas and other areas of potential erosion are stabilized; an operation and maintenance plan for erosion and sediment control is in place; and the site is in compliance with all local storm wat^ management requirements including erosion/sediment ccmtrol requirements. The date constraction actirities were suspended, and the expected date constracti<ni actirities will start up again should be prorided. 3. Constraction site cannot discharge storm water to waters of the United States. Please indicate if all storm water is retained on site or if storm water is collected ofi&ite. 4. Discharge of constraction storm water from the site is now subject to another NPDES general pomit or an indiridual NPDES pomit. The general permit or indiridual permit NPDES numbo' and date coverage began should be prorided. 5. There is a new owner ofthe identified site. If ownership or operation ofthe facihty has been transferred then the prerious owner must submit a Notice of Termination and the new owner must submit a Notice (tf intent fcnr coverage under the general permit. The date of transfer and information on the new owner should be prorided. Note that the prerious owner may be hable for discharge from the site until the new owner files a Notice of Intoit fw covCTage under the general permit. Where to File The Notice of Termination should be submitted to the Executive Officer ofthe Regional Wato- Board responsible for the area in which the facihty is located. See attached. If the Executive Officer, or his designated stafi^ agrees witii tiie basis of termination, the Notice of Tenninaticm virill be transmitted to fhe State Water Board for {vocessing. Ifthe Executive Officer, or his designated stafi^ does not agree with the basis of termination, the Notice of Terminaticm will be reUmied. The Regional Water Board may also inspect your site prior to accepting the basis of tomination. C-NOT-l LINE-BY-LINE INSTRUCTIONS All necessary information must be prorided on the form. Type or print in the appropriate areas only. Submit additional information, if necessary, on a separate sheet of paper, SECTION I-WDID NO, The WDID No. is a number assigned to each discharger covered under the General Permit. If you do not know your WDID No., please caU the State Water Board or Regional Water Board and request it prior to submittal of fhe Notice of Termination. SECTION II-OWNER Enter the owner of the constraction Site's official or legal name (This should correspond with the name on fhe Notice of Intent submitted for fhe site), address of fhe owner, contact person, and contact person's titie and telephone number. SECTION ffl-CONSTRUCnON SITE INFORMATION In Part A, enter the name of fhe developer (or general contractor), address, contact person, and contact person's titie and telephone number. The contact person should be the constraction site manager completely famihar witii fhe construction site and charged with comphance and oversight ofthe general pomit. This information should correspond with information on the Notice of Intent submitted for fhe site. In Part B, enter the address, county, and telephone number (if any) ofthe constraction site. Constraction sites that do not have a street address must attach a legal description ofthe site. SECTION IV-BASIS OF TERMINATION Check die categoiy which best defines the basis ofyour termination request. See fhe discussion of the criteria in the Who May File section of these instractions, Proride dates and other information requested. Use fhe space under Explanation of Basis of Termination heading. SECTION V-EXPLANATION OF BASIS OF TERMINATION Please explain the basis or reasons why you beheve your constraction site is not required to comply with the General Permit. To support your explanation, proride a site map and photograph ofyour site. SECTION VI~CERTMCATION This section must be completed by the owner of tiie site. The Notice of Termination must be signed by: For a Corporation: a responsible corporate officer For a Partnership or Sole Proprietorship: a general partner or tiie proprietor, respectively. For a Municipahty, State, or other Non-Federal Pubhc Agency: either a principal executive officer or ranking elected official. For a Federal Agency: either the chief or senior executive officer of tiie agency. CNOT-l 1 storm Watef Contacts for the State and Regional Boards STAFc WATER RESOURCES COffmOL BOAfiU Divrtion o( Water Cuaiify Atiannon: Slomi WaiEr Pan/i Unn P.O. Box 1977 SacnfT>9nTO. CA 95812-1977 (916)W7/)B19 FAX: (916) 057-iOU Conacat Brvcs Fuiimoio i)MonTH COAST necioN ;*v. Le9 A. Mieifia Ejocum-a OfTicar SSfiO JvtyiAne soulffvait. tune A Sama Rosa. CA 95-«U i70n 5/"5-rZ;0 F.4jC(7C75ii3-'J1i5 Conao; Nathan Guarles 2] SAU FRAHCaCO BAY REGION fill Larerts KaM Barsamiaa EifiOji/vE CHicRr 2101 Wsbstfif SlfM. Suile 500 OaWand. CA 9*612 (510)a«-1?JE5 FAX: (S'O) 285-1380 CancKC Tom UiunJey 3) CEKTRAL COAST REGION Mr. Aoqet W. Briggs. Executrvt ORicar 91 Hijuwa St;c€l. Sui* 200 S.V1 Uis Othspo. CA 93401-3*77 (803)5*9-31^7 FAX; (AOS) 5*3-039/ Contad; Mafl rabry 4) LOS A/<G£L£S REGION MI. Dea-ds C-id'.UfSC.'!. tzacuSve CIScsf 101 Csnire PItifl UrivB Mnnpf*yP3rt«.CA 9l75i-2l55 (3221 ?Ji6-r*92 FAX: (323) 266-7600 Ccntact XaWer Sirtnuitannu SS) CENTRAL VALLEY REGION Sacraineina Olfics Mr. Gary M. Cartion. Lieculive OfBcar 2^ Routier Road. Suite A Sacramenio. CA 95827-3098 (916)255^072 FAX: (916) 255-3015 Contad: tCaairyn GiAiay 50) CENTRAL VALJJEY REGION !\6Qati^ 9rancfi OliicB Mr. James C Pedri. Suoarvismo Enotnccr ai5 KpoUcmst Cnve. Ftedcfrig, CA 9GCQ2 (520) 22«l-'.«49 FAX-(530) 224-4aS7 Caiaa: Caiola Crowe 3F) CF.jnnAL vPLLlf ME'JIUN r(R<ain Rfrwri C^^Jt-. Wr. I wen J. »Ui!u-«. 'VvciVuU'.i r u> uJ>« (.iliair 3G11 r:vM A.'J'LIII AV»;<IUI.' Fffl<;nn CA •!]/-<: 5 (-00) •*'*S :-^.1 rA:r. it-^'Jl .MG JJU; Caniaa: Al.v) V'-viy 6SLn LAHONrANnFr.iGM Sou'Ji '-iKe Ifilicw ».^"'cn Mr. Ha;uld J. SiiiqRf. r.if-i.ir'e 'jflVxf ;.?0i LaJte 1;i/iop 30ul«)v.7f i ?;^t.tin lal'e u'ce. CA •?G'::'' (5.30) >42-.vUK) r'M. (SJO) 5''"l-c;.ri Concac^ John i"'"icrt hV) LAHONTAN flcGIOM Vicoivtile 0 Ific 2 Mr. Mssom 2.rJ.v. S.:|)"!r/ir.'r..j z!y.yj\f^'f l:<29 Civic Ufr.«t Sumt •.00 Vjciomllc. CA 9/}5? (7601 241-7377 F.U'- '7^:) 1 2i.3 Cantacv Ajythcuyy Kificln 71 COLORADO RIVER RASIN RFOION Mr. PhJip G'tePMig. rtncuuvu CfTirsf 73 -720 Fred '.VanfW Orr/n. [iuiln I CO Palm n»>?prl. CA'?ii:6J (760) .VB-I FAJ; (»Wl iA I ^.^k J Confacf ccJ A-i-'Ji.i^f 8)SANTA ANA ilcUIOM Mr G^ram J. •naur.iuil. V.UIN»! OAWjrt 3737 a3i»i Sirec =H>IP -'^"^ nivnrside.CA 3;!:0i i139 (MOS) 782-3233 FW: 'SCVI 73 l-o.-:cn Conact Alic/iae/Adtfciapai-J 1) SAtt UlL'iO RLGIOfJ Mr Jotin H. fioaeiTus. Ltecj(r»e 9771 Claifemnrii >.</'-..i ;;m:ii'vn»i runif' (619) 4fi7-23E2 FAX: ;r,l9) 5-7t-.y72 Cjnfacr G/ono fa/lon fVnr;u5t;iay rrrm//,' Sute of California State Water Resources Control Board NOTICE OF TERMINATION OF COVERAGE UNDER THE NPDES GENERAL PERMFT NO. CAS000002 FOR DISCHARGES OF STORM WATER ASSOCIATED WITH CONSTRUCTION ACTIVITY Submission of this Notioe of Tennination constitutes that the owner (and his/her agent) of the site identified on this form is no longer authorized to discharge stonn water associated with construction activity by NPDES General Pennit No. CAS000002. I. WDID NO. n. OWNER COMPANY NAME CONTACT PERSON STREET ADDRESS TITLE cnr STATE ZIP PHONE III. coNSTRUcrroN srrE INFORMATION A. DEVELOPER NAME CONTACT PERSON STREET ADDRESS TFILE cnr STATE ZIP PHONE IV. BASIS OF TERMINATION 1. The construction project is complete and the following conditions have been meL - All dements ofthe Storm Water Pollution Prevention Plan have been completed, - Construction materials and waste have been disposed of properiy. - The site is in oon^Uanoe with all local storm water management requirements. - A post-construction storm water operation and management plan is in place. Date of project completion I I 2. Construction activities have been suspended, either temporarily. or indefinitdy_ and the fbllowiag oonditions have been met - All dements ofthe Storm Water Pollution Prevention Plan have been oonqileted. - Constraction materiab and waste have been diqxMed of properiy. • All denuded areas and other areas ofpotential erosion are stabilized. - An operation and maintenanoe plan for erosion and sediment oontrol is ia plaoe. - The site is in compliance wiOi all local stonn water management requirements. Date of suspension I I E]q>ected stait up date l_ C-NOT-1 3. Site cannot discharge stonn water to waters ofthe United States (check one). All stonn water is retained on site. All storm water is discharged to ev^oration or peroolation ponds offsite. 4. Discharge of stonn water from the site is now subject to another NPDES general pemiit Or an individual NPDES pennit 5. There is a new owner ofthe identified site. Date of ownertransfer / / Was the new owner nctified ofthe General Permit requirements? YES NO NEW OWNER INFORMATION COMPANY NAME CONTACT PERSON STREET ADDRESS TTFLE CFFY STATE ZIP PHONE V. EXPLANATION OF BASIS OF TERMINATION (Attach site photographs - see mstructions). VI. CERTIFICATION: I certify under penalty of law that all storm water discharges associated with construction activity fi'om the identified site that are authorized by NPDES general Pennit No. CAS000002 have been ehmmated or that I am no longer the owner of the site. I understand that by submitting this Notice of Termination, I am no longer authorized to discharge storm water associated with construction actirity under the general permit, and that discharging pollutants in storm water associated vrith construction activity to waters of the United States is unlawful under the Clean Water Act where the discharge is not authorized by a NPDES permit. I also understand that the submittal of this Notice of Termination does not release an owner from hability for any violations of the general permit or the Clean Water Act. PRINTED NAME TFFLE SIONATURE DATE / / REGIONAL WATER BOARD USE ONLY This Notice of Tennmation has been reviewed, and I reoonnnend tennination of coverage under flie subject NPDES geneni penniL Printed Name • R^on No.. ONOT-l SfTEDEdCRFnON PROJECT NAME AND LOCAVOH LACUNA PAKK 25J0 STATE STKEET. CAKLSBAD. CA 92008 OWNER'S NAUE AND ADDRESS WAVECREST RESORTS H, LLC (PREVIOUSLY WAVECREST RESORTS, LLC.) 829 SECOND ST.. STE 'A' ENC»«TAS. CA 92024 PROJECT DESCRIPVON THE PROJECT CONSISTS OF THE FOULOWING SCOPE OF WORK: CRADIHG AND MPR0VCMEN75 ASSOCMnED MTH TTC OEVBLOPMEWr OF THE GRADED PADS RECaVING WATERS EXISTING STORU DRAIN SYSTEN IN LAGUNA DRIVE AND BUENA MSM LAGOON. NArmWEDESCfWTION KNOW/ EXISTINQ TOXIC MATERIALS NO KNOWN UATERIALS ARE KNOWN TO EXIST AT THE 9TE UATERIALS AND PRODUCTS EXPECTED ONSITE DURIh FERTUJ2ERS PAINT SOLVENTS WOOD TREATED PRODUCTS PETROLBM PRODUCTS ASPHALT PRACTICES TO MINIMIZE CONTACT OF MATERIALS. PI EVERY EFFORT MKl BE UADC TO STORE ONLY ENOUGH UAIERIAL OR PRODW THE PROJECT AU UATERIALS Wkl BE STORED NEATLY IN APPROPRIATE LOCATIONS AU P ORIGINAL RESEALABU CONTAINERS DURING THE RAINY SEASON (OCTOBER IS TO APRL 15). CONSTRUCTION DEBf UATERIALS mu. BE STORED IN A COVERED OUMF>STET?. THE DUUPSTER SHAl TO PREVENr OVERaOW, ANO THE CONTENTS DISPOSED OF H AN /APPROVED PROOUCTS MU BE USED AND DISPOSED OF W ACCORDANCE WITH UANUFAC1 DURING THE RAINY SEASON (OCTOBER 15 TO APRIL 15). AN EFFORT WILL BE OF CONSTRUCTION EOUIPUENT ANO VCNKI£5 TO 14 DAYS WHEN NOT IN ACTI NON-EUERCENCY VEHIOf UAINTENANCE WIU GENERAUY BE PERFORMED H UAINIENANCE AREA. NON-EUERCENCY VEHICLE UAINTENANCE INVOLWK THE USE OF HYDRAUUC t ETC, WIU. BE UmilZED DURING imS OF ACTUAL RAINFALL ERO&ONAND8H)liiGfrCONmOL EROSION CONTROI PIAN Pl£ASE REFER TO EROSKM CONTROL NOTES ON SHEET 2 OF 3 FOR DETAILED INFORUATKN" STABtUZATION PRACT1CFS STABtJZATKN PRAC1KCS FOR THIS SITE INaUDE: TEUPORARY SEEDUG PERUANENT SEEDING AND PLANTING JUIl UESH AS REOUKD STRUCTURAI PRACTICES STRUCTURAL PRACTICES FOR THS STE HCLUDE: SAND / GRAVa BAGS SEDUENT TRAPS SH.T BARRIER FENCES OFF SITE SEDIMENT TRACKING CONTROI ADJACENT STREETS WILL BE SWEPT AS NEEDED TO REMOVE SEOdCNT- TRACKED FROU THE SITE STABUZED CONSTRUCTWN ENIRANCE SHALL BE PROWED AT ALL EGREES POKTS. mD EROSION CONTRm DISTURBED AREAS WIU BE SPRAYED WITH WATER DURING ACTTVE CLEARING AND CRADOK TO REDUCE miDOLOWN DUST. ONLY THE MNNMUM OF WATER NEEDED TO CONTROL DUST WkL BE USED. CONSTRUCTION SFOUFNCF EROSKN CONIROL UEASURE SHALL BE INSTALLED AND UAINTAINED AS PER IHE OTY OF CHOW VfSM APPROVBD EROaON CONTROL PLANS FOR EACH SET OF GRADING AND IUPRO\€UENTS RESPONSIBLE PARTY THE CONIRACTOR S RESPONSIBLE FOR THE MPLEUENTAVON OF THESE PRACTICES. ONSITE VCT«a£5 SH>U1 BE REGULARLY INSPECTED AND UAMTAINED TO REDl ALL SPILLS HU. BE CLEANED UP UPON OrSCOVET?r, UATERIALS ANO EQUPU CLEANUP (SUCH AS BROOUS, MOPS, GOGGLES: aOVCS^ ABSORBENT UATERIA BE AVAIABLE ONSITE. SPILLS MU. Bf CLEANED UP IN ACCORDANCE WITH 1 RECOMMEMOATTONS SANITARY WATER FROU ONSTE PORTABLE FACIUTIES WU. BE COUECTED AT UCENSED WASTE UANAGEUENT CONTRACTOR AND DISPOSED OF OFF SITE IN . REGULATIONS. THIS UST OF PRACIKES WIU BE POSTED AT THE ONSTE CONSTRUCTION TR/ Wni BE RESPONSIBLE FOR NOTFYMG AMD TRAINUG STE PERSONNa ABOUT ALL CONTRACTORS AND SUBCONTRACTORS SHAU BE RESPONSBIE FOR lUPU POUUTMM PREVEMITON PLAM. ANVaPATED NON-STORM WATER DISCHARGES POTABLE WATER WkL BE USED FOR GRADKIG. DUST CONTROL IRRK^ATKN OF PERUANENT LANDSCAPING. AN EFFORT WHI BE MAOE TO USE ONLY THE Ak REQUKED FOR THESE OPERATKJNS. POST CONSMJCTION STABIUZED PRACTICES STAOUZED SLOPE MU. BE INSPECTED AND REPAIRED AS NECESSARY IN ACCORDANCE WITH THE OTY OF CARLSBAD REOUIREMENTS. STRUCTURAL PRACVCES SANDBAGS OR CRAVa BAGS REOUIRED ON PADS AND STREETS WUL BE INSTAUID AND REPAKED PRIOR TO OCTOBER 15 IN ACCORDANCE WITH THE OTY OF CARLSBAD REOUKEUENTS THESE OPERATION WIU CONTINUE UNTK LOTS AND/OR PAD AREAS AND STREETS ARE LAtOSCAPED AND RELEASED FOR OCTUPANCK AT WHK>I TIUE NO-POST CONSTRUCVOH STRUCTURAL PRACTKES ARE ANTK3PATED. UNLESS REOUIRED BY APPROPRIATE RESPOHSBtE PARTY (SEE BaOW). RESPONSIBLE PARTY WA\CCREST RESORTS I. LLC (PREVKXJSLY WAVECXST RESORTS. LLC.) ATTN UR. BIU CANEPA TEL (780) 753-2440 SOURCE OF BASE MAP TOPOGRAPHK WFORMATTON SHOWN IS FROU FIELD TOPOGRAPHK SURVEr ON AOC. 200T. MONnonNQPROORAklAND rEPOFmNQFEOUm/ENTS SITE INSPECTIONS STE INSPECVONS SHAU BE MADE PRKK TO ANVOPATED STORMS AND AFTER STORMS. TO OETEIiMNE r POUUTION CONTTKX.S ARE W PLACE AMD W MORMNG ORDER MONITORING RFCORDS RECORDS SHAU BE KEPT FOR AU INSPECTKJNS. MAMTENANCE OPERATTON, COMPUANCE MTH TTC REOUREMCT«TS OF THE STORM WATER POLLUTION PREVENTION PLAN ^SKPPp; AND NATIONAL POUUTTON DISCHARGE EUUINATKN PERUIT (NPDES). THtS CERTTTCATION SHAU 8E MAOE Br JULr TSr OF EACH YEAR. REPORTING REPORTS OF STE NONCOMPUANCE SHAU BE MADE WITHIN 30 DAYS TO THE REGK3NAL WATER BOARD. ACTTONS AND A SCHEDULE OF EVENTS REOUIRED TO ACNCVE COMPUANCE SHAU BE HCLUOED. NO OTHER REPORTING OF INSPECTTON RESULTS IS REOUIRED. SrORMWATBiPOLUmON PREVENT10NPUW ANDREW J. KANN R.C.€. 50940 ur «asiRAnoM opmcs 9-M-05 SUPP PLAN SHEn 1 CF 2 SnEDESCfmON PROJECT NAME AND LOCAVON LAGUNA PARK 2530 STATE STREET. CARLSBAD. CA 92008 OWNER'S NAME AND ADDRESS IMVECRESr RESORTS M, LLC (PREWXJSLY WAVECREST RESORTS, LLC) 829 SECOND ST., STE 'A* ENONTTAS: CA 92024 PgQJE-Cr DFSCRIPTION THE PROJECT CONSISTS OF THE FOUOWING SCOPE OF WORK: GRADMG AND MPROVCMENTS ASSOCMTED MTH THE DEVdOPMENr OF THE GRADED PADS. SibRMWATER POLLUTION PREVENflbN PLAN NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM LAGUNA PARK SFcnvmc WATFKS EXISTING STORU DRAIN SYSTEM IN LAGUNA ORnC AND BUENA VtSrA LAGOON. NA/nATNE DESCRFUON KNOWN EXISTING TOXIC MATERIALS NO KNOWN UATERIALS ARE KNOWN TO EXIST AT THE SITE MATERIALS AND PRODUCTS EXPECTED ONSITE DURING CONSTRUCTION FERTIUZERS PAINT UETAL SOLVENTS WOOD TREATED PROOUCTS PETROLEUM PRODUCTS ASPHALT PRACTICES TO MINIMIZE CONTACT OF MATERIALS. PRODUCTS. EVERY EFFORT WkL BE MADE TD STORE ONLV ENOUGH MATERIAL OR PROOUCTS ONSTE TO COMPLETE TTC PROJECT. AU MATERIALS MU BE STORED NEATLr H APPROPRIATE LOCATTONS AU PRODUCTS MU BE KEPT" IN ORIGMAL. RESEALABIE CONTAMERS DURING THE RAINY SEASON (OCTOBER 15 TO APRL 15), CONSTRUCTTON OEBRfS^ TRASH, ANO MMSTE MATERIALS MU BE STORED IN A COVCRED DUMPSTER. THE DUMPSTER SHAU BE EMPTIED AS NEEDED TD PREVENT OVERFLOW, AND THE CONTENTS DISPOSED OF IN AN APPROX MANNER AT AN ACCEPTABLE SITE PRODUCTS MU BE USED AND DISPOSED OF M ACCORDANCE WITH MANUFACTURERS' DIRECTTONS DUONG THE RAINY SEASON (OCTOBER 15 TO APRK. I5> AN EFFORr MU BE MAOE TO LMir ONSTTE STORAGE OF CONSTRUCTTON EOUPUENT AND VEHCLES TD 14 OAYS MNEN NOr IN ACTTVE USE NON-EUERCENCY VEHICLE UAINTENANCE WkL GENERAUY BE PERFORMED W DESIGNATED UAINTENANCE AREA NON-EUERCENCY VEHKIE UAINTENANCE INVOLMNG THE USE OF HYDRAUUC FWCS, PETROLEUM PROOUCTS ETC. WUL BE UmilZED DURING HUES OF ACTUAL RAINFAU EROGKMANDSa^ti/BfrCONmOL EROSION CONTROL PLAN PLEASE REFER TO EROSON CONTROL NOTES ON SHEET 2 OF 3 FOR DETAILED INFORMATTON" STABIUZATION PRACTICES STABkJZAVON PRACTKES FOR THIS SITE INCLUDE: TEUPORARY SEEDUG PERUANENT SEEDING AND PLANTING JUTE MESH AS REOURED STRUCTURAL PRACTICES STRUCTURAL PRACTKES FOR THIS SITE MCLUDE: SAND / GRAVEL BAGS SEDUENT TRAPS SLT BARRIER FENCES OFF SITE SEDIMENT TRACKING CONTROL ADJACENT STREETS MU BE SWEPT AS NEEDED TD REMOVE SEDIUENT TRACKED FROU THE STE STABUZED CONSTRUCTION ENTRANCE SHAU BE PROVWED AT AU EGREES POINTS WIND EROSION CONTROL DISTURBED AREAS MU BE SPRAYED MTH WATER DURING ACTTVE CLEARING AND GRAOINC TD REDUCE WINDBLOWN DUST. ONLY THE MMMUM OF WATER NEEDED TO CONTRa DUST MU BE USED. CONSTRUCVON SEQUENCE EROSON CONTROL MEASURE SHAU BE MSTALLED AND UAMTAMED AS PER TK OTY OF CHULA VfSTA APPROVED EROSION CONTRa PLANS FOR EACH SET OF GRADING AND IMPROVEMENTS RESPONSIBLE PARTY THE CONTRACTOR IS RESPONSBIE FOR TTC MPUEUENTAVON OF THESE PRACTKES ONSTE VEHICLES SHAU BE REGULARLY MSPECTED AND UAMTAINED TO REDUCE THE CHANCE OF LEAKAGE. AU SPkLS WkL BE CLEANED UP UPON DISCOVERY, UATERIALS ANO EOUPUBNT NECESSARY FOR SPIU CLEANUP (SUCH AS BROOUS, UOPS. GOGGLES, CLO^S. ABSORBENT UATERIALS. CONTAINERS. ETC) WkL BE AVAIABLE ONSTE. SPkLS MU BE OEANBD UP W ACCORDANCE MTH THE PRODUCT MANUFACTURERS' REC0MMENDAT1QN& SANITARr WATER FROM ONSTTE PORTABLE FAOUICS WU BE COLLECTED AT REGULAR MTERVALS BY A UCENSED WASTE UANAGEUENT CONTRACTOR AND DISPOSED OF OFF STE M ACCORDANCE WITH APPUCABLE REGULATIONS. TMS UST OF PRACTICES MU BE POSTED AT THE ONSITE CONSTRUCTION TRAILER, SITE SUPERMTENDENTS MU BE RESPONSIBLE FOR NOTTMNC AMD TRAMNC SITE PERSONNa ABOUT THESE PRACTICES AU CONTRACTORS AND SUBCONTRACTORS SHAU BE RESPONSBLE FOR MPLEUENTING THE STORU WATER POUUTION PREVENTION PLAM ANVOPATED NON-STORM WATER DISCHARGES POTABLE WATER WkL BE USED FOR GRADMG. DUST CONTROL IRRIGATION OF EROSON CONTROL AND PERUANENT LANDSCAPING AN EFFORT MU SE MAOE TO USE ONLV THE AMOUNT OF POTABLE WATER REQUKED FOR THESE OPERATKJNS. POSTCONSIWCnON STABIUZED PRACVCES STABUZED SLOPE WkL BE MSPECTED AND REPAKED AS NECESSARY M ACCORDAMCE WITH THE CfTY OF CARLSBAD REOUKEUENTS. SmUCTURAL PRACVCES SANDBAGS OR GRAVEL BAGS REQUIRED ON PADS ANO STREETS MU BE MSTAUED AND REPAKED PRMR TO OCTOBER 15 M ACCORDANCE WITH THE OTY OF CARLSBAD REOUKEUENTS. THESE OPERATION MU CONTINUE UNTIL LOTS AND/OR PAD AREAS AND STREETS ARE LANDSCAPED AND RELEASED FOR OCCUPANCY. AT WHKH TIUE NO-POST CONSTRUCTION STRUCTURAL PRACTICES ARE ANTKPATED. UNLESS REOUIRED BY APPROPRIATE RESPONSBIE PARTY (SEE BELOW). RESPONSIBLE PARTY WAVECREST RESORTS I. LLC. (PREMK3USLY WAVECREST RESORTS, LLC.) ATTN. UR. BkJ. CANEPA TEL (780) 753-2440 SOURCE OF BASE MAP TOPOGRAPHK MFORMATION SHOWN IS FROU FIELD TOPOGRAPHK SURVEY ON AUG 2001. KEYMAP KEY MAP lEGEND SYUBOL HEM SUBOI\KKJN BOUNDARY LOT UNE EASEMENT OKECTMN OF STREET DRAMAGE STORU DRAM AND APPURTENANCES CBHFICATTON I CERTIFY UNDER PENALTY OF LAW THAT THS DOCUMENT ANO AU ATTACHMENTS MERE PREPARED UNOER UY DKECTKN ANO SUPERVtSMN M ACCORDANCE WITH A SYSTEM DESKNED TD ASSURE THAT QUALIFIED PERSONNa PROPERLY GATHER AND EVALUATE THE MFOmiATKM SUBMITTED. BASED ON UY INQUIRY OF THE PERSON OR PERSONS WHO MANAGE DC SYSTEM, OR THOSE PERSONS DIRECTLY RESPONSBLE FOR GATHERING THE MFORUAVON, THE MFORMATION SUBMITTED Oi TD TME BEST OF UY KNOWLEDGE AND BEUEF, TRUE, ACCURATE AND COMPLETE I AU AWARE THAT THERE ARE SGNfKANT PENALTIES FOR SUBMITTMG FALSE MFORMATION, MaUDMG THE POSS«Unr OF FWE AND IMPRISONMENT M ADDITION. / CERIFT THAT THE PROVtSKMS OF THE PERMfT, MaUDMC THE DEVdOPMENT AND IMPLEMENTATION OF A STORM WATER POUUTION PREVENTION PLAN AND A MONITORMG PROGRAM PLAN, MU BE COMPUBD MTH. PRMTED NAME- MONHORNQ PROGRAM AND fERQRTNO flEOUFCUEVTS SITE INSPECVONS STE INSPECTIONS SHAU BE MADE PRIOR TD ANTKPATED STORMS AND AFTER STORMS. TO DETERMME IF POUUTION CONTRaS ARE M PLACE AND W WORKING ORDER. MONITORING RECORDS RECORDS SHAU BE KEPT FOR AU MSPECTKNS, MAMTENANCE OPERATION, COMPUANCE MTH THE REOUIREMENTS OF THE STORM WATER POLLUTION PREVENTTON PLAN (SWPPP) AND NATIONAL POUUTION DISCHARGE EUUMATKJN PERUIT (NPDES). TMS CERTIFICATKJN SHAU BE MAOE Br JOLr IST OF EACH YEAR. REPORVNG REPORTS OF SITE NONCOMPUANCE SHAU BE MADE MIHIN JO DAYS TO THE REGTONAL WATER BOARD. ACTIONS AMD A SCHEDOLE OF EVENTS REQUKED TO ACHCVE COMPUANCE SHAU BE MCLUDED. NO OTHER REPORTING OF MSPECTION RESULTS IS REOURED. SrOPMNATERPOUJUtON PREVB^nON PLAN PREPARED BY: ANDREW J KANN R.C.E 50940 HI RcasiRAiKH opmes 9-J0-05 SmV PLAN SHEETI OF 2 EROSION CONTROL NOTES ESPol^l^C NUMBER OF BACSHKH THE EROSON CONTROL CONTRACTOR SHAU BE RESPOlBVrOR TTC MSPECTKN AND UODfKATKJN OF THE EROSON CONTROL DEVKES. AS NECESSARY. DURMG THE RAMY SEASON. THE CONTRACTOR, PEWTTEE OR ONNER SHAU BE RESPOMSiaiE FOR THE CONTMUAL MAMTENANCE OF ITC EROSKN CONTROL 0EV«C£5 DURMG TTC RAMY SEASON. TEUPORARY EROSON CONTRa DEVKES SHOWN ON THE EROSION CONTROL PLAN WHKH MTERFERE WITH THE WORK SHAU BE RaOCATED OR HODIFIED AS THE WORK PROGRESSED AS RECOUUENDED BY THE ENGMEER OF WORK AND AS APPROVED BY THE DKECTOR OF PUBUC WORKS AU LOOSE sot AND DEBRIS SHAU flf REMOVED FRON THE STREET AREAS UPON STARTING OPERATKMS AND PERKOKAUY AFTER AS DKECTED BY THE NSPECTOR. STAND-BY CREWS SHAU BE ALERTED BY THE CONTRACTOR. PERUITTEE OR OWNER FOR EUERGENCY WORK DURMG RAMSTORUS AU UTUTY TRENCHES SHAU BE BACKFUED WITHM 24 HOURS AND UUST BE BACKFUED BEFORE THE OF THE WORK OAY F A 40-PERCENT CHANCE OF RAM IS PREDICTED. PROVBE VaOOTY CHECIC DAMS M AU SIREET AREAS PAVED OR UNPAVED AT TTC MTERVALS MDKATED BELOW. VELOQTY CHECK DAMS MAr BE CONSTRUCTED OF CRAVELBAGS. HUBER. OR OTHER EROSON RESISTANT UATERIALS APPROX BY THE OTY ENGMEER. ANO SHAU EXTEND COUPLEiaY ACROSS THE STREET OR CHANNEL AT RKHT ANGLES TO THE CENTER UNE. EARTH UAY NOT BE USED AS VELOQTY CHECK DAMS MTERVAL AS REQUKED 100 FEET I 50 FEET I 50 FEET 2 25 FEET 2 7. PROVtJE VELOCITY CHECK DAMS M AU UNPAVED GRADED CHANNUS AT THE MTERVALS MDKATED BELOW UNLESS CHANNELS ARE UNED WITH TEUPORARY UATERIALS SUCH AS PLASTIC SHEETING. GRADE OF CHANKL MTERVAL LESS THAN 3X 100 FEET SX - 6X 50 FEET OVER 6X 25 FEET & A GRAVEISAC scr SASM OR TRAP SHAU BE PROVIDED AT EVERr STORM ORAM MLET TO PREVENT SEDIMENT FROM ENTERMG THE STORU ORAM SYSTEU. ft A GUARD SHAU BE POSTED ON STE HHEMEVEB TTC DEPTH OF WATER M ANY UNFENCED FACUTY EXCEEDS TWO (2) FEET. 10. AU REMOVABLE PROTECTION DEVKES SHONN SKAU BE M PLACE AT ITC END OF EAOH NORfONC DAK MCN TTC 5-OAr RAM PROBABUTY FORECAST EXCEEDS 40-PERCENT, AFTER EACH RAM5T0RU EXCEEDMG 1\4 MCH W A 12-HDUR PERTOD. SLT AMD DEBRIS SHAU SE REMOVED FROU CHECK DAUS AND DESUTMG BASMS, ANO BASMS SHAU BE PUMPED ORT. IL EFFECTTVE PLANTING SHAU BE MSTAUED. FUUY CERUMATED. AND SHAU EFFECTIVELY COVER THE REQUKED SLOPES PRKR TO FMAL APPROVAL THE PLANTING UK SHAU BE APPROVED Br TTC OIRECTQR OF PUBUC MCRXS PI90R TO MSTALLATKM. GRADE OF SIREET LESS THAN 2.0X 2X- 4X 4X- 6X 6X - lOX OVER lOX NON-KRKATED HYDRO-SEED MIX BOTAMCAL NAUE ATRPOEX SEUKACCATA ESCHSOLBA CAUFORNKA GAZANIA SPLENDENS LOBLARIA UARITIM(VI01ET OUEEN) PLANTACO MSULARIS HYDRO-SEED REOUREMENTS; GERM PURITY RATE 7 90 82 3 95 75 12 95 75 3 95 70 20 95 75 COUUON NAUE CREEPMG SALTBUSH CALIFORNU POPPY GAZAMM SHEET ALYSSUM PLANTACO IDTAL //AC 45 MULCH: tSaOf/AC ACRONO-UULCH BMDER: 120//AC ACRONO-TAC 25//AC FBER PLUS POLYUER 59//AC TERRA-SORB GB IZ CRAVELBAGS AND NECESSARY UATERIALS SHAU BE AVAkABU ON STE AND STOCKPkED AT CDNVCMENT LOCATIONS TO FACUTATE RAW CONSTRUCVON OF TEUPORARY DEVICES OR TO REPAK ANT DAMAGED EROSKN CONIRa MEASURES MCN RAM IS EUMENT A STAND-BY CREW SHAU BE UABE AVALABU AT AU nes ouiaNG THE RAMY SEASON. 13 AU EROSON CONTROL PLANS UUST PROVKJE A 24-HOUR TELEPHONE NUMBER AND THE NAMEfS; OF ITC PERSON(S) RESPONSBLE FOR EUERGENCY WORK. A TELIPHONE ANSWERMG UACHME OR ANSWERMG SERVICE IS UNACCEPTABLE CONTACT: BOB HARVEY (760) 635-0271 14. DEVKES SNOMW ON PLANS SHAU NOT BE REMOVED OR UOOfTED WITHOUT THE APPROVAL OF THE MSPECTOR 15 THE CONSTRACTOR SHAU RESTORE AU EROSON CONTROL DEVKES TO WORKMG ORDER TO THE SATISFACVON OF THE DKECTOR OF PUBUC WORKS OR MSPECTOR AFTER EACH RUN-OFF PROOUCMG RAMFAU OR OTHER SOURCE OF WATER CAUSMG EROSON TO THE Sit 16. THE CONTRACTOR SHAU MSTAU ADUTKMAL EROSKN CONTROL UEASURES AS UAY BE REOURED BY THE DKECTOR OF PUBUC WORKS DUE TO UNCOUPIETED GRADMG OPERATIONS OR UNFORESEEN CKCUUSTANCES WHKH UAY ARISE 17. THE CONTRACTOR SHAU BE RESPONSBLf AND SHAU TAKE NECESSARY PRECAUTKJNS TO PREVENT PUBUC TRESPASS ONTO AREAS WHERE IMPOUNDED WATERS CREATE A HAZARDOUS CONDHION 16 CONIRACTOR TO PROIECT AU EXISTMG HARDSCAPE ANO LANOSCAPED AREAS AND REPLACE MKMD ANY REMOVED OR DAMAGED AREAS PER THE LANDSCAPE ARCHITECT. OWNER. ENGMEER OF WORK OR THE COUNTY MSPECTOR 19. TEUPORARY EROSON CONTROL PLANTMG SHAU BE MSTAUED M ACCORDANCE WITH THE VUOE TO EROSON CONTROL M SAN DCCO COUNTY.' PERUANENT LANOSCAPE ANO KRKATMN UAY BE MSTAUED M UEU OF TEUPORARY PLANTMG • PVC PERFORATED PVE PERFORAVON FACED DOWN PIPE WRAPPED WITH FITER SLEEVE TWO P«S TOTAL. SEE PLAN FOR LOCATION, LENGTH 4 aOPf. LEGEND: DESCRIPTION CRAVELBAGS STABILIZED CONSTKUCVON ENTRANCE SYMBOL 4 t^" sg y . 2 BAGS MGH '-^^ ^ OLOW POMT PROME APPROPRIATE IRANSTKJN- BETWEEN STABUZED CONSTRUCTION ENTRANCE ANO PUBUC RKHT-OF-WAY STABUZED CONSTRUCTION BJTRANCE NOT TO SCALE -EMBED FIRST ROW OF CRAVELBAGS HALF DEPTH -OPENMG AT MLET -EMBED «?Sr ROW OF CRAVELBAGS HALF DEPTH BAG EMBSDDING DETAIL Y SLOPE VAMES ^2:1 UAX) PVC PERFORATED PKE , J WRAPPED W/ FITER SLEEVE '"rPERFORATICW DOWN ZOX UUIT OF 2' ROCK PLACEMENT TYPE C-I MLET iSS. 4" PVC PERFORATED PPE WRAPPED W/ ftlER SUEVE I PERFORAVON DOWN BACK OF CURB SLOPE VARfS (2:1 UAX) FACE OF CURB EDGE OF GUTTER -12" PVC PPE SEE PLAN FOR Cs P.CC ANCHOR BLOCK 12' UM SURROUND RISER * OUTLET PPE REINFORCE W/ 6' X 6' XIO GAUGE WKEFABRK UAINTENANCE SEDIMENT SHAU BE REMOVED WHENEVER STORAGE CAPACITY HAS BEEN ACHCVCD SEDIMENT SHAU BE DISPOSED OF M SUCH A MANNER THAT NU. PREVENT ITS RETURN TO THE DESLTMG BASN OR MOVEMENT MTD DOWNSTREAM AREAS DURMG SUBSEQUENT RUNOFF TTC DESLTMG BASMS ARE PRIVATE FACUTIES. AND THE QTY WU NOT flf RESPONSBIE FOR THEK UAMTENANCC DETENTION AREA DETAIL WTH OVERFLOW CATCH BASIN SECTION 'A-A' NO SCALE PLAN VIEW 3 BAGS HKH TYPICAL INLET DETAIL nPAVPl RAG nPTAII .Q NOT TD SCALE PARTNERS Planning and Engineering 9988 Hibert Street. Suite 212 San Oiego.CA. 92131 Ph. (858) 695-3344 Fax: (858) 695-3117 ANDREW J KANN R.CL 50940 ur RiaamAVCK Dffw: 9-.10-0.'. SWPP PLAN SHEET 2 OF 2 ARMY AND NAVY A( /VDIIMY ."i c 1,'iM'Lir I 'f^'i':ir:ri'. •'[(. r^iilhurL^. 'v<::a mini uini. si *ny. 'i !>:-r i|V'ii'iLi 'fifu :r: <jru:ii SITE FENCE ARCHITECTURAL RENDERINGS HOUSE DODGE design DIRECTORY TABLE OF CONTENTS OWNER: ARMY AND NAVY ACADEMY 2605 CARLSBAD BOULEVARD CARLSBAD, CA 92008 TEL: (760)729-2385 CONTACT: GENERAL STEVE BLISS APPLICANT: ARCHITECT: HOUSE & DODGE DESIGN, INC. 1929 HANCOCK STREET, SUITE 200 SAN DIEGO, CA 92110 TEL: (619)557-0575 CONTACT: JOHN DODGE HOUSE & DODGE DESIGN, INC. 1929 HANCOCK STREET, SUITE 200 SAN DIEGO, CA 92110 TEL: (619)557-0575 CONTACT: JOHN DODGE VICINITY MAP CITY OF OCEANSIDE NOT TO SCALE CITY OF VISTA CITY OF SAN MARCOS CITY OF ENCINITAS SHEET No. A-1 A-2 A-3 AR-1.1 AR-1.2 AR-2.1 AR-2.2 AR-3.1 AR-3.2 AR-4.1 AR-4.2 AR-5.1 AR-5.2 AR-6.1 AR-6.2 AR-7.1 AR-7.2 SHEET TITLE TITLE SHEET / SITE PLAN PARTIAL PLANS, ELEVATIONS, AND DETAILS PARTIAL PLANS AND ELEVATIONS VIEW OF SOUTH CORNER FROM CARLSBAD BLVD. (CAMERA LOCATION 1 - BEFORE) VIEW OF SOUTH MONUMENT FROM CARLSBAD BLVD. (CAMERA LOCATION 1 - AFTER) VIEW OF ENTRY FROM CARLSBAD BLVD. (CAMERA LOCATION 2 - BEFORE) VIEW OF ENTRY GATE FROM CARLSBAD BLVD. (CAMERA LOCATION 2 - AFTER) VIEW FROM CARLSBAD BLVD. (CAMERA LOCATION 3 - BEFORE) VIEW OF SITE FENCE FROM CARLSBAD BLVD. (CAMERA LOCATION 3 - AFTER) VIEW FROM CYPRESS AVENUE (CAMERA LOCATION 4 - BEFORE) VIEW OF SITE FENCE FROM CYPRESS AVENUE (CAMERA LOCATION 4 - AFTER) VIEW FROM OCEAN STREET (CAMERA LOCATION 5 - BEFORE) VIEW OF SITE FENCE FROM OCEAN STREET (CAMERA LOCATION 5 - AFTER) VIEW FROM CYPRESS AVENUE (CAMERA LOCATION 6 - BEFORE) VIEW OF SITE FENCE FROM CYPRESS AVENUE (CAMERA LOCATION 6 - AFTER) VIEW OF NORTH CORNER FROM CARLSBAD BLVD. (CAMERA LOCATION 7 - BEFORE) VIEW OF NORTH MONUMENT FROM CARLSBAD BLVD. (CAMERA LOCATION 7 - AFTER) PROJECT SITE DATA PROJECT ADDRESS: 2605 CARLSBAD BOULEVARD CARLSBAD, CA 92008 GENERAL PLAN AND ZONING: EXISTING ZONING: PROPOSED ZONING: EXISTING LAND USE: PROPOSED LAND USE: ASSESSOR'S PARCEL NUMBERS: 203-041-02 V-R, R-3, OS, BAOZ NO CHANGE PRIVATE SCHOOL NO CHANGE LEGEND B D H EXISTING FENCE TO REMAIN NEJAI STONE LO^ kSALL STONE CAP, ANP PNROUCHT IRON FENCE ABOVE. STONE PILASTERS PN/ STONE CAPS AT +/- 30'-0" O.C. NE^ kNROUCHT IRON ENTRY ^ATE. EXISTINC ENTRY PILASTERS AND ARCH TO REMAIN. NEkS UPLICHT AT BASE OF EACH ENTRY PILASTERS. NEIAI J^ROUCHT IRON FENCE, STONE PILASTERS 1^/ STONE CAPS AT +/- 30'-0" O.C. NEIAI STUCCO PNALL PN/ STONE CAP AND PILASTERS, ACADEMY NAME AND UPLICHTS. NEi/S |A|ROU6'HT IRON FENCE. STUCCO PILASTERS kS/ STONE CAPS AT +/- 40'-0" O.C. NEIAI moUCHT IRON SITE ACCESS SATE PN/ LI SHTS MOUNTED ON TOP OF ADJACENT PILASTERS NE^ PNROUCHT IRON ROLLER CATE PN/ NEPN STONE PILASTERS EX I STI NC STUCCO LOPN ^ALL ^S/ NEPN lAjROUCHT IRON FENCE ABOVE. NEIAI REMOVABLE PORTION OF PNROUCHT IRON OR FENCE FOR SITE ACCESS. rn NE^ LICHT MOUNTED ON TOP OF NE1A| PILASTER [M] NEPN SlAjOOPINC STUCCO /MALL PN/ STONE PILASTERS PER PLAN CAMERA LOCATIONS (l) VIEPN OF SOUTH MONUMENT FROM CARLSBAD BLVD. VIEP^ OF ENTRY CATE FROM CARLSBAD BLVD. VIE/S OF SITE FENCE FROM CARLSBAD BLVD. 0 VIE/M OF SITE FENCE FROM CYPRESS AVE. VIE/^ OF SITE FENCE FROM OCEAN ST. VIEPN OF SITE FENCE FROM CYPRESS AVE. (7) VIEPN OF NORTH MONUMENT FROM CARLSBAD BLVD. K HOUSE DODGE ARMY i NAVY ACAPEMY REFER TO SHEETS A-2 AND A-3 FOR ADDITIONAL INFO. SCALE: \"=\00'-0" A-1 PILASTER BETOND STONE OAF SLOPE TOP TO I7RAIN 12" CMU WALL STUCCO FINISH SUICCO SCRSD FINISH ©RADE FOOTINS PER STRUC-OIAL SCALE. N.TS. SITE FENCE CORNER MONUMENT PETAIL SLOF« TOP 1/2" MIN. TO I?RAIN 12' CMU WALL STUCCO FINISH STUCCO SCR^P FINISH SRADE FOOTINS PER STRUCTUAL SCALE: N.T.S. SITE FENCE CORNER MONUMENT PETAIL STONE CAP, SLOPE TOP TO DRAIN STONE VENffiR S" CMU I^ALL CORRCJ&ATED NON-CORROSIVE METAL TIE PER CB.C. I4<»A.6 FINISH ©RAPE FOOTIN© PER STRUCTUAL SCALE. N.T.S. SITE FENCE PILASTER PETAIL ICM extmiOR LldHT I€M cm. PILASTER FBR (IXe W SWCCO RNBH AND S" MN. STOtC &AP. CORNER MONUMENT PLAN ON CARLSBAP BLVX?. SCALE= l/a" = r-O" m\ 12" KT. heTAL 9l6NA«t VBWPY SZE AM? PORKT PRIOR TO FABRICATION. NBN NJ. FENCE W 3/6" PICKETS AT ±*'O/C., I" TOP A*C BOnW-RAILA AM? r SUPPORT MBCTO AT±I0'-0"0JC Nm »• C.MW IHALL PER PLA*(9 FV STUCCO FINISH /W 5" HIR STOIC CAP. NBi CMi). PILASTER f PLANS HI STONE \ mn V MM AT/1NP <->kP SOUTH CORNER MONUMENT ON CARLSBAP BLVP. SCALE: I/&" = r-O" IOI Fll. FB«:£ FV 3/»' PICKETS AT ±6" O.C, 1" TOP ANP BOTTOM-RAILS, ANP I" SUPPORT HJ«l«Ji AT IIC-O" or. NBN EXTERIOR LW PB« PLANS mt W.1. SITE ACCESS 6A1E FV I 1/2" SnWCTURAL FRAFC 9/»" PICKETS AT ±*" 0^., AND 16" KICK PLATE. NEF) Kl. BdRT «ATE TO FIT DOSTINS CPB1N6FV I V2' STWCTWeAL FRAME, 3/»- PKKETS AT ±6' O C, 3/6" DECORATIVE SCROLL FKWC, AIO »" KICK PLATE. ^eF(8•C>UU.L0FIFIAU.PERPL^NSFV • STOIC W&BR. ANP 3' MW STOIC CAP STORE SmC FROM EXISTIN» FIAa VB4^ PER OFfrC^ - NBN CXU. PILAS1EF F1>MS FV STONE VE AMP S* MM. STOKE C TYP. ACCESS (3ATE AT SIC?E ANP REAR SCALE: I/&" s r-O" ® MAIN ENTRY CATE ON CARLSBAP BLVP. SCALE: 1/6" s r-O" HOUSE ARMY i NAVY ACAPEMY PARTIAL ELEVATIONS, PLANS, ANP PETAIL5 SCALE: \/e>" = \'-o" A 9 ^DODGE ARMY i NAVY ACAPEMY PARTIAL ELEVATIONS, PLANS, ANP PETAIL5 DATE: oe>-\e>-o<=^ desi g n tfSN Fll.-ROLLINS SATE IV 3/6" PICKETS AT ±6" OC, AMS I* TOP ANP BOTTOM RAILS. (ON CJHU.-PILASTER FV STOIC -•VBBK ANP 3' MIN. STONE CAP 30'-0" CLEAR IBN Fll. FENCE FV S/S" PICKETS AT ±6' OC. r TOP ANP BOTTOM RAILS, AM? r SUPPORT FChBERS AT IIC^O" OJC. NEW cm -PILASTER H/ STONE VSeR AND 3' MIN. STOIE CAP HNBH FACE OF ICW PILA9TBI TO AUaN rv FACE OP EXISTINS euiLPINS NBN SM0OPIN6 13' CXU. FWX *V STUCCO FINISH DQSTINe VBHCOAK A^^ESS TO RB4MN A EXIST1N6 TRS TO wmAIN CORNER MONUMENT PLAN CH CARLSDAD BLVD. SCALE: 1/16" = r-O" NBN WJ. ROLLINS (SATE EETONP FV 3/S"-PICKETS AT ±6' OJC„ AND r TOP AND BOTTOM RAILS. ICW SW00PIN6 13* C>1il. WALL- PER PLANS FV STU:C<? FINISH ICWCWJI.PILASTBPER-flANSFV STONE VENEER AND 3" MIN. STOIC CAP. NBN 12" CHU. FMJ. BerOW PW PLANS KV STUCCO FIMSH • NBN 3W00PIN9 12" CMU. WAU.-PER PLAMS rv 9TVCCO FINISH WIN 12' HT. METAL SlSli^, VERIFY SIZE ANP FORHT PRIOR TO FABRICATION NBN C><JJ. PILASTER FER I FLAMS FV STONE VENEER M3N 12" cm LOW Fm PER FLANS FV STUCCO FINISH ® VEHICULAR ENTRANCE ON CAm.9DAD BLVD. SCALE: \/&" ~ r-O" HOUSE ^DODGE desi g n ARMT i NAYf ACAPEMY NORTH CORNER MONUMENT OH OAmJSaAO BLVD. SCALE: 1/6" = r-O" PARTIAL ELEVATIONS AND PLANS SCALE. I/ft"-I'-O" DATE. 0&-'\&-0^ A-3 HOUSE ^DODGE ARMT t NAVr ACADEMT design VIEW OF SOUTH CORNER FROM CARLSBAP BLVP. BEFORE SCALE: N.T.S. DATE. Oe>-\3-0^ AR-1.1 HOUSE DODGE e s i g n ARMY 4 HAVr ACAPEMY VIE^N OF NORTH MONUMENT FROM CARLSBAP BLVP. AFTER SCALE: N.T.S. DATE. 06-l3-0^ AR-7.2 DODGE ARMT i NAVY ACADEMY desi g n VIEW OF NORTH CORNER FROM CARLSBAP BLVP. BEFORE SCALE: N.T.S. DATE. 0&-\3-0^ AR-7.1 HOUSE DODGE ARMT i NAVY ACAPEMY desi g n VIEW OF SITE FENCE FROM CYPRESS STREET AFTER SCALE: N.T.S. DATE. De>-I3-0<1 AR-6.2 HOUSE DODGE ARMY i NAVr ACAPEMY desi g n VIEW FROM CYPRESS STREET BEFORE SCALE: N.T.S. DATE. 08>-\3-0^ AR-6.1 HOUSE DODGE ARMY 4 NAVY ACAPEMY e s I g n VIEW OF SITE FENCE FROM OCEAN STREET AFTER SCALE: N.T.S. DATE. 0&-\3-0^ AR-5.2 HOUSE ^DODGE ARMT 4 NAN/r ACAPEMY desi g n VIEW FROM OCEAN STREET BEFORE SCALE: N.T.S. DATE. 0&-\3-0^ AR-5.1 HOUSE ^DODGE ARMY 4 NAVY ACAPEMY VIEW OF SITE FENCE FROM CYPRESS STREET AFTER SCALE: N.T.S. AR-4.2 HOUSE ^DODGE ARMY 4 NAVY ACAPEMY VIEW OF SITE FENCE FROM CYPRESS STREET AFTER DATE. C&-I3-0<1 AR-4.2 desi g n HOUSE ^DODGE ARMY 4 NAW ACAPEMY desi g n VIEW FROM CYPRESS STREET BEFORE SCALE: N.T.S. DATE. 0&-\3-0<^ AR-4.1 HOUSE ^DODGE ARMY 4 NA\^ ACAPEMY desi g n VIEW OF SITE FENCE FROM CARLSBAP BLVP. AFTER SCALE: N.T.S. DATE. C&-l3-0«^ AR-3.2 HOUSE ^DODGE ARMY 4 NAVY ACAPEMY VIEW FROM CARLSBAP BLVP. BEFORE SCALE: N.T.S. AR-3.1 HOUSE ^DODGE ARMY 4 NAVY ACAPEMY VIEW FROM CARLSBAP BLVP. BEFORE DATE. AR-3.1 desi g n I HOUSE ^DODGE desi g n HOUSE DODGE ARMY 4 NAVY ACAPEMY desi g n VIEW OF ENTRY FROM CARLSBAP BLVP. BEFORE SCALE: N.T.S. DATE. 0&-\3-0^ AR-2.1 HOUSE DODGE desi g n ARMY i NAVY ACAPEMY VIEW OF SOUTH MONUMENT FROM CARLSBAP BLVP. AFTER SCALE: N.T.S. DATE. 0&-\3-0<^ AR-1.2