The Post-Construction Storm Water Management Program is to assure that storm water runoff from developed land does not negatively impact receiving streams, either through hydrologic impacts or pollutant discharges. Post-Construction Best Management Practices (BMPs) for any proposed site development involving one (1) acre or more of property shall be designed to meet the Ohio EPA's Construction General Permit #OHC000005. Such practices for permanent site BMPs to meet the water quality requirements may include, but are not limited to: storm water detention structures (both wet and dry extended detention basins), bioretention, vegetated swales and vegetated filter strips, engineered wetlands, permeable pavements, rainwater harvesting, and systems which combine several practices.
The design of post-construction storm water controls shall be in accordance with the above referenced OEPA Construction General Permit. BMPs shall be designed according to the methodology included in the Ohio Department of Natural Resources (ODNR) Rainwater and Land Development Manual (Ohio’s Standards for Stormwater Management Land Development and Urban Stream Protection) or another design manual acceptable for use by Ohio EPA.
For further information, see Ohio EPA's Guidance Regarding Post-Construction Storm Water Management.