BMP group | Rechargea | Water qualitya | Channel protectiona | Peak dischargea | Hot spot runoff |
---|---|---|---|---|---|
Bioretention | Varies | Yes | Possibleb | No | Yes. Needs underdrain |
Filtration - media | No | Yes | No | No | Yes |
Filtration - vegetative | Variesc | Yes | Possibleb | No | Yes |
Infiltration trench | Yes | Yes | No | No | No |
Infiltration basin | Yes | Yes | Yes | Yes | No |
Stormwater ponds | Nod | Yes | Yes | Yes | Yes |
Constructed wetlands | Variesd | Yes | Yes | Yes | Yes. Needs pre-treatment |
Supplemental BMPs | Varies | Nob | Possibleb | No | Noe |
aSee section on unified sizing criteria for more information
bCan be incorporated into the structural control in certain situations
cMay be provided by infiltration
dWhen impermeable liners are required or pool intercepts groundwater
eCan be included as part of the treatment train