Project: Forest Avenue Construction Stormwater
Client: Stuart Waldman
Location: Staten Island, New York
Services: Construction Stormwater; Permitting
CEA Engineers designed the stormwater treatment system and Stormwater Pollution Prevention Plan (SWPPP) for a proposed retail development on an 8-acre property along Forest Avenue in Staten Island, New York (Site). The design was complicated by the presence of sensitive freshwater wetlands on the property. Not only did the wetlands have to be properly protected, but they also served as the location for some of the Site’s post-construction stormwater discharges.
To meet the New York State Department of Environmental Protection’s (NYSDEC) regulatory requirements and to be protective of the property’s wetlands, CEA Engineer’s design incorporated dry wells to collect, store, and infiltrate stormwater runoff and promote groundwater recharge. To maintain pre-development water flows to the wetlands, the design included directing a portion of the Site’s stormwater flows directly to the wetlands. To ensure further protection of the wetlands, the design including diffusing weirs to eliminate the potential for soil erosion in wetland areas.
Based on the SWPPP and stormwater treatment system designed by CEA Engineers, the project successfully obtained permit coverage under the NYSDEC’s State Pollutant Discharge Elimination System (SPDES) Construction General Permit.