Best Management Practices
Under the Stormwater Management Program, new development that requires the management of stormwater runoff must use Environmental Site Design (ESD) or construct a Best Management Practice (BMP). These structures include infiltration, flow attenuation, retention, extended detention, detention and underground storage.
Detention facilities are dry ponds which become completely dry with in 24 hours of a storm event. These facilities provide the least amount of water quality benefits. The use of detention facilities as a BMP is discouraged.
Projects may have BMPs completely underground. These underground facilities use the practice of infiltration, extended detention or detention. This BMP is typically used in commercial developments, where tight site constraints do not allow areas to be designed strictly for stormwater management.