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 | Noc | Yes | Yes | Yes | Yes |
Constructed wetlands | Variesc | Yes | Yes | Yes | Yes. Needs pre-treatment |
Supplemental BMPs | Varies | Nob | Possible | No | Noe |
a
See section on unified sizing criteria for more information
b
Can be incorporated into the structural control in certain situations
c
May be provided by infiltration
d
When impermeable liners are required or pool intercepts groundwater
eCan be included as part of the treatment train