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

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Technical RequirementsGreen Roof• Portland, City of, 2004. Stormwater Management Manual and various Green roof publications.• Scholz-Barth, K., 2001: Green Roofs, Stormwater Management from the Top Down.Environmental Design and Construction. Accessible at http://www.edcmag.com.• Velazquez, L., 2006: Greenroofs.com: Exploring the Ecology of Organic Green RoofArchitecture. Accessible at http://www.greenroofs.com.• Velazquez, L., Organic Greenroof Architecture: Design Considerations and System Components.Wiley Periodicals, Inc., Environmental Quality Management/Summer 2005.Stormwater Quality Design Manual for the Sacramento and South Placer RegionsGR-10 May 2007
Runoff Reduction Control Measure Fact SheetGreen RoofTable GR-3. Design Data Summary Sheet for Green RoofDesigner:Company:Project:Location:Date:1. Determine Design Water Quality Volume: WQV = ft 32. Determine growth medium volume based onporosity of growth media with vegetation.Volume of growth medium = WQV/Porosity. V = ft 33. Select green roof type Extensive Intensive4. Determine Required Structural Support5. Check that system includes all component layers Waterproofing Membrane Insulation/Air Barrier (optional) Drainage/Water Storage/Aeration Layers Engineered Growth Media Protection Layer/Root Barrier Water Retention Mat Geotextile Filter Fabric Gravel Ballast (if needed)6. Select Vegetation and describe 80% Sedum 20% Native species7. Determine Irrigation Needs8. Incorporate Vegetation-Free Zones or Fire BreaksNotes:Stormwater Quality Design Manual for the Sacramento and South Placer RegionsMay 2007GR-11
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Stormwater Quality Design Manualfor
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Stormwater Quality Design Manual wa
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Table of contentsOutdoor Work Areas
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Table of contentsSF-1.SF-2.SF-3.SF-
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Other Development Community Reviewe
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1 IntroductionPurposeThis Stormwate
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IntroductionIn July 2003, the permi
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IntroductionFor redevelopment proje
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Introduction• The Appendices prov
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2 An Integrated Approach toEffectiv
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Integrated ApproachIt is also helpf
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Integrated ApproachPut landscaping
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Integrated Approachfactors will be
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Chapter 3Figure 3-1. Process for Ad
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Chapter 3runoff reduction first (ev
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Chapter 3As the name implies (and a
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Chapter 3Step 9: Establish Long Ter
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Chapter 4Source Control Fact Sheets
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Source Control Measure Fact SheetSt
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Source Control Measure Fact SheetFu
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Source Control Measure Fact SheetLo
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Source Control Measure Fact SheetOu
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Source Control Measure Fact SheetOu
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Source Control Measure Fact SheetWa
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Source Control Measure Fact SheetWa
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5 Runoff Reduction Control Measures
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Runoff Treatment Control Measure Fa
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Technical RequirementsSand FilterSa
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Technical RequirementsSand FilterDe
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Technical RequirementsSand FilterDe
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Technical RequirementsSand FilterSt
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Technical RequirementsSand FilterTa
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Technical RequirementsSand FilterLo
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Technical RequirementsVegetated Swa
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Glossaryexposure of construction ma
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GlossaryLow Impact Development (LID
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GlossaryRegional Stormwater Quality
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Appendix ASubmittal RequirementsThe
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Sacramento County Supplemental Appl
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Example Post Construction Stormwate
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Typically maintenance agreements an
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Example Maintenance Covenant(Sacram
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Device in accordance with the maint
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[attach]DECLARANT’S ACKNOWLEGEMEN
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Recorded at the request of:CITY OF
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9. The obligations herein undertake
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EXHIBIT B[Map/Illustration]
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City of FolsomThe City of Folsom ow
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Appendix D-1: Residential Sites: Ru
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Form D-1d: Alternative Driveway Des
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Form D-2a: Disconnected Pavement Wo
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Appendix D-3Runoff Reduction Credit
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These tables refer to runoff reduct
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Mature TreeShape Canopy (dia.) Heig
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Appendix D4LID Credits Background R
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unoff from the driveway by 60% whil
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The designer must determine how man
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Or the ASCE-WEF method (Sacramento)
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Table 3 - Multipliers Based on Rati
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Using the Effective Area Managed in
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SMRC, The Stormwater Manager’s Re
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Flow-based control measure design s
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4. Apply the Rational Formula to ca
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5. Enter the capture curve selected
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1.201.000.80STORAGE (in)0.600.4024-
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1.201.000.80STORAGE (in)0.600.4048
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Subject: VEGETATED SWALE EXAMPLEPLA
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PART II:Routing Excess Runoff throu
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4. Design the OutletThe outlet shou
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Exhibit 1Water Quality Orifice Outl
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3. Calculate Planter Surface Area A
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• Bottom slopes of 0.01 to 0.05%
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Appendix HDrainage Design and Storm
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