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

More documents

Recommendations

Info

Runoff Reduction Fact SheetDisconnected Roof DrainsReferences• City of Portland Stormwater Management Manual. Revision 3, September 1, 2004.• High Point Community Site Drainage Technical Standards. Seattle, WA, June 2004.• National Menu of Best Management Practices for Storm Water Phase II. United StateEnvironmental Protection Agency. 2002.http://cfpub.epa.gov/npdes/stormwater/menuofbmps/index.cfm• New York State Stormwater Management Design Manual. Center for Watershed Protection, NewYork State Department of Environmental Conservation, Albany, NY, October 2001.• Shueler T., Swann C., Wright T, and S. Sprinkle. 2004. Urban Subwatershed Restoration ManualNo 8: Pollution Source Control Practices. Version 1.0. Center for Watershed Protection. EllicotCity, MD. July 2004.• SMRC, The Stormwater Manager’s Resource Center. Manual Builder.http://www.stormwatercenter.net/Manual_Builder/Credits/SITE/rooftop.htm• Start at the Source - Design Guidance Manual for Stormwater Quality Protection, Bay AreaStormwater Management Agencies Association, 1999.• Stormwater C.3 Guidebook: Stormwater Quality Requirements for Development Applications.Contra Costa Clean Water Program. Contra Costa, CA, March 2005.• Truckee Meadows Regional Storm Water Quality Management Program: Draft Low ImpactDevelopment Handbook. August 2005.• Virginia Stormwater Management Program Handbook. Virginia Department of Conservation andRecreation, 1999.Stormwater Quality Design Manual for the Sacramento and South Placer RegionsMay 2007DRD-9
Runoff Reduction Control Measure Fact SheetInterceptor TreesDescriptionInterceptor trees are those used in residential andcommercial settings as part of the stormwaterquality management plan to reduce runoff andpollution from the development project.Interceptor trees can be placed on residential lots,throughout landscape corridors, in commercialparking lots, and along street frontages. Treesinstalled in municipal right-of-ways may beprotected through ordinances and can provideyears of aesthetic benefit.Siting Considerations• Soils: Drainage and soil type must support selected tree species.• Location: Locate within 25 feet of impervious surface.• Other structures: Maintain appropriate distance from infrastructure and structures that could bedamaged by roots and avoid overhead power lines, underground utilities, septic systems,sidewalks, curbs, patios, etc.Vector Considerations• Potential for mosquitoes due to standing water where excess irrigation is applied or planter box isnot designed to properly drain.Advantages• Reduces the amount of pollutants entering the storm drain system.• Can reduce size of downstream stormwater quality treatment measure(s) by reducing the volumerequired to treat.• Enhances aesthetic values.• Provides shade to cool pavement and reduces surface runoff temperatures.• Aids in removal of air pollutants and noise reduction.• Shade trees required by the permitting agency may be counted as interceptor trees.• Extends life of asphalt paving.Limitations• Fire safety may be a consideration in areas with increased risk for fire hazard.Maintenance Recommendations (Low 1 )• Pruning of trees may be required to maintain tree, ensure safety, and prevent damage tostructures.• Diseased/damaged tree, and those with poor structure should be removed and replaced as soon aspossible.• Irrigation system may be required in perpetuity.1 Compared to stormwater quality treatment control measures discussed in Chapter 6.Stormwater Quality Design Manual for the Sacramento and South Placer RegionsMay 2007INT-1
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 71 and 72: Runoff Reduction Fact SheetDisconne
Page 87: Runoff Reduction Fact SheetDisconne
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 119 and 120: Design Data Summary SheetConstructe
Page 139 and 140:
Runoff Treatment Control Measure Fa
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:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Technical RequirementsVegetated Swa
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
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 222:
Form D-1d: Alternative Driveway Des
Page 225 and 226:
Form D-2a: Disconnected Pavement Wo
Page 228 and 229:
Appendix D-3Runoff Reduction Credit
Page 230 and 231:
These tables refer to runoff reduct
Page 232 and 233:
Mature TreeShape Canopy (dia.) Heig
Page 234 and 235:
Appendix D4LID Credits Background R
Page 236 and 237:
unoff from the driveway by 60% whil
Page 238 and 239:
The designer must determine how man
Page 240 and 241:
Or the ASCE-WEF method (Sacramento)
Page 242 and 243:
Table 3 - Multipliers Based on Rati
Page 244 and 245:
Using the Effective Area Managed in
Page 246 and 247:
SMRC, The Stormwater Manager’s Re
Page 248 and 249:
Flow-based control measure design s
Page 250 and 251:
4. Apply the Rational Formula to ca
Page 252 and 253:
5. Enter the capture curve selected
Page 254 and 255:
1.201.000.80STORAGE (in)0.600.4024-
Page 256 and 257:
1.201.000.80STORAGE (in)0.600.4048
Page 258 and 259:
Subject: VEGETATED SWALE EXAMPLEPLA
Page 260:
PART II:Routing Excess Runoff throu
Page 263 and 264:
4. Design the OutletThe outlet shou
Page 265 and 266:
Exhibit 1Water Quality Orifice Outl
Page 267 and 268:
3. Calculate Planter Surface Area A
Page 269 and 270:
• Bottom slopes of 0.01 to 0.05%
Page 271:
Appendix HDrainage Design and Storm
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?