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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