BMP Descriptions
Typical BMPs used in runoff management are listed below. Short descriptions and schematics of BMP types can be viewed by clicking on each BMP link. Complete BMP factsheets that provide design, construction, and maintenance considerations, as well as performance, are available from the CASQA New Development & Redevelopment BMP Handbook.
BMP Types
Note: Full Capture Systems, as defined by the State Water Resurces Control Board, trap all particles that are 5 mm or greater, and have a design treatment capacity that is either a)not less than the peak flow rate resulting from a one-year, one-hour, storm in the drainage area; or b) appropriately sized to, and designed to carry at least the same flows as, the corresponding catch basin.
Bioretention
Variations and Alternative Names: Rain Garden, Stormwater Planter, Vegetated Filter, Biotreatment
Full Capture Device: Yes
Distributed or Regional BMP: Distributed
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Constructed Wetland
Variations and Alternative Names: None
Full Capture Device: No
Distributed or Regional BMP: Either
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Extended Detention Basin
Variations and Alternative Names: Detention Pond, Dry Extended Detention Basin/Pond, Dry Pond
Full Capture Device: Yes
Distributed or Regional BMP: Either
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Dry Well
Variations and Alternative Names: Underground Injection Control (UIC)
Full Capture Device: No
Distributed or Regional BMP: Either
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Green Roof
Variations and Alternative Names: Eco Roof, Brown Roof (in arid regions)
Full Capture Device: No
Distributed or Regional BMP: Distributed
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Harvest and Use
Variations and Alternative Names: Aboveground Storage, Cistern, Rain Barrel, Capture and Use
Full Capture Device: Yes
Distributed or Regional BMP: Either
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Infiltration Basin
Variations and Alternative Names: Retention Basin, Spreading Ground
Full Capture Device: Yes
Distributed or Regional BMP: Either
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Infiltration Trench
Variations and Alternative Names: Rock Swale
Full Capture Device: Yes
Distributed or Regional BMP: Distributed
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Media Filter
Variations and Alternative Names: Sand Filter, Austin Sand Filter, Delaware Sand Filter, DC Sand Filter, Canister Filter
Full Capture Device: No
Distributed or Regional BMP: Either
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Pervious Pavement
Variations and Alternative Names: Porous/Permeable Pavers, Porous/Permeable Asphalt, Porous/Permeable Concrete
Full Capture Device: No
Distributed or Regional BMP: Distributed
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Vegetated Buffer Strip
Variations and Alternative Names: Vegetated Strip, Strip, Buffer Strip, Biostrip
Full Capture Device: No
Distributed or Regional BMP: Distributed
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Vegetated Swale
Variations and Alternative Names: Swale, Bioswale
Full Capture Device: No
Distributed or Regional BMP: Distributed
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Wet Pond
Variations and Alternative Names: Stormwater Pond, Retention Pond, Wet Extended Detention Pond, Detention Pond
Full Capture Device: No
Distributed or Regional BMP: Either
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