Stormwater Quality Design Manual (May 2007) - City of Sacramento ...

More documents

Recommendations

Info

Form D-1d: Alternative Driveway DesignSee Fact Sheet for more information regarding Alternative Driveway Design credit guidelines1. Select type of drivewayPervious Driveway:Multiplier:Cobblestone Block Porous Pavement 0.40Pervious Concrete/Asphalt Pavement 0.60Modular Block Porous PavementPorous Gravel Pavement &0.75Hollywood DrivewayNot Directly-connected Driveway 1.00Box M12. Determine percentage of units with Alternative Driveways:Box M24. Multiply Boxes M1, M2, A T and 0.04, and enter the result in Box M acres Box M0.00This is the amount of area credit to enter into the "Alternative Driveway Design" Box of Form D-1Step 3 - Calculate Flow or Volume Requiring TreatmentForm D-1e Treatment - Flow-Based (Rational Method)Calculate treatment flow (cfs):Determine C Factor using Table D-1bFlow = Runoff Coefficient x Rainfall Intensity x Adjusted Treatment AreaCDetermine i using Table D-1c (Rainfall Intensity)select location in part 1iA AT from Step 20.00A ATFlow = C * i * A AT0.00cfsTABLE D-1bTable D-1cRunoff Coefficient (Rational), CRainfall IntensitySingle-family areas 0.50 Roseville i = 0.20 in/hrMulti-units, detached 0.60 Sacramento i = 0.18 in/hrApartment dwelling areas 0.70 Folsom i = 0.20 in/hrMulti-units, attached 0.75User Specified 0.00Form D-1f Treatment - Volume-Based (CASQA)Calculate treatment volume (Acre-Feet):Skip this, use Form D-1g for volume calculationsTreatment Volume = Area x (Storage Volume ÷ Conversion Factor)Determine Adjusted C A using Table D-2d (forCASQA Method) and the Adjusted ImperviousFraction (I A ) from Step 2Determine Unit Basin Storage Volume (Fig. D-2A) using C A0.040.03C A hrs Specified Draw Down timeSVA from Step 10.00ATreatment volume = A T x (SV / 12)0.00Acre-FeetForm D-1g Treatment - Volume-Based (ASCE-WEF)Calculate water quality volume (Acre-Feet): WQV = Area x Maximized Detention Volume (P 0 )A from Step 1 0.00 A hrs Specified Draw Down timeObtain P 0 : Maximized Detention Volume fromfigures E-1 to E-4 in Appendix E of this manualusing I A from Step 2.#N/AP 0Treatment volume = A x (P 0 / 12)0.00Acre-FeetCheck the website for the electronic version at www.sactostormwater.org click on "new development"
Page 1 and 2:
Stormwater Quality Design Manualfor
Page 3 and 4:
Stormwater Quality Design Manual wa
Page 5 and 6:
Table of contentsOutdoor Work Areas
Page 7 and 8:
Table of contentsSF-1.SF-2.SF-3.SF-
Page 9 and 10:
Other Development Community Reviewe
Page 11 and 12:
1 IntroductionPurposeThis Stormwate
Page 13 and 14:
IntroductionIn July 2003, the permi
Page 15 and 16:
IntroductionFor redevelopment proje
Page 17 and 18:
Introduction• The Appendices prov
Page 19 and 20:
2 An Integrated Approach toEffectiv
Page 21 and 22:
Integrated ApproachIt is also helpf
Page 23 and 24:
Integrated ApproachPut landscaping
Page 25 and 26:
Integrated Approachfactors will be
Page 27 and 28:
Chapter 3Figure 3-1. Process for Ad
Page 29 and 30:
Chapter 3runoff reduction first (ev
Page 31 and 32:
Chapter 3As the name implies (and a
Page 33 and 34:
Chapter 3Step 9: Establish Long Ter
Page 35 and 36:
Chapter 4Source Control Fact Sheets
Page 37 and 38:
Source Control Measure Fact SheetSt
Page 39 and 40:
Source Control Measure Fact SheetFu
Page 41 and 42:
Source Control Measure Fact SheetLo
Page 43 and 44:
Source Control Measure Fact SheetOu
Page 45 and 46:
Source Control Measure Fact SheetOu
Page 47 and 48:
Source Control Measure Fact SheetWa
Page 49 and 50:
Source Control Measure Fact SheetWa
Page 51 and 52:
5 Runoff Reduction Control Measures
Page 53 and 54:
Runoff Reduction Control MeasuresDe
Page 55 and 56:
Runoff Reduction Control Measures
Page 57 and 58:
Runoff Reduction Control Measure Fa
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Runoff Reduction Fact SheetDisconne
Page 73 and 74:
Page 75 and 76:
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Chapter 6• What are pollutants of
Page 109 and 110:
Chapter 6For projects using any of
Page 111 and 112:
Runoff Treatment Control Measure Fa
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Design Data Summary SheetConstructe
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Technical RequirementsInfiltration
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Technical RequirementsSand FilterSa
Page 159 and 160:
Technical RequirementsSand FilterDe
Page 161 and 162:
Technical RequirementsSand FilterDe
Page 163 and 164:
Technical RequirementsSand FilterSt
Page 165 and 166:
Technical RequirementsSand FilterTa
Page 167 and 168:
Technical RequirementsSand FilterLo
Page 169 and 170:
Page 171 and 172: Runoff Treatment Control Measure Fa
Page 177 and 178: Technical RequirementsVegetated Swa
Page 191 and 192: Glossaryexposure of construction ma
Page 193 and 194: GlossaryLow Impact Development (LID
Page 195 and 196: GlossaryRegional Stormwater Quality
Page 197 and 198: Appendix ASubmittal RequirementsThe
Page 199 and 200: Sacramento County Supplemental Appl
Page 201: Example Post Construction Stormwate
Page 204 and 205: Typically maintenance agreements an
Page 206 and 207: Example Maintenance Covenant(Sacram
Page 208 and 209: Device in accordance with the maint
Page 210 and 211: [attach]DECLARANT’S ACKNOWLEGEMEN
Page 212 and 213: Recorded at the request of:CITY OF
Page 214 and 215: 9. The obligations herein undertake
Page 216 and 217: EXHIBIT B[Map/Illustration]
Page 218 and 219: City of FolsomThe City of Folsom ow
Page 220 and 221: Appendix D-1: Residential Sites: Ru
Page 224 and 225: Appendix D-2: Commercial and Multi-
Page 226: Step 3 - Calculate Flow or Volume R
Page 229 and 230: Runoff Reduction Credits for Discon
Page 231 and 232: Trees Qualifying for Interceptor Tr
Page 233 and 234: Mature TreeShape Canopy (dia.) Heig
Page 235 and 236: II. RESIDENTIAL CREDITS CALCULATION
Page 237 and 238: QL = tW⎛1.49W⎜⎝ Q ns ⎞⎟
Page 239 and 240: Alternative Driveway Design (ADD)Al
Page 241 and 242: Porous Pavement (PP)The amount of c
Page 243 and 244: Q = C iAWhere,Q = design flow (cfs)
Page 245 and 246: IV. REFERENCESAdams, M.C. 2003. Por
Page 247 and 248: Appendix EDesign Requirements for S
Page 249 and 250: 1. Identify and delineate the drain
Page 251 and 252: P 6 = mean annual runoff-producing
Page 253 and 254: 1.201.00STORAGE (in)0.800.6012-hr d
Page 255 and 256: 1.201.00STORAGE (in)0.800.600.4048-
Page 257 and 258: Appendix FExample Design Calculatio
Page 259 and 260: 3. Depth of flow (d) at WQF (3” -
Page 262 and 263: Design Example - Sizing of Water Qu
Page 264 and 265: The resulting storage elevation-sto
Page 266 and 267: Subject: STORMWATER PLANTER EXAMPLE
Page 268 and 269: APPENDIX GDESIGNING AND MAINTAINING
Page 270 and 271: Contra Costa Clean Water Program, V
show all

Stormwater Quality Design Manual (May 2007) - City of Sacramento ...

Create successful ePaper yourself

Delete template?

Save as template?