Great Cove Watershed Management Plan

Project Location: Town of Islip, NY
Client: Town of Islip (funded by NYSDOS)

NPV prepared the Great Cove Watershed Management Plan for the Town of Islip (funded by the New York State Department of State). The study area includes the western half of the Town’s frontage on the Great South Bay (16,000+ acres). The upland contributing drainage areas to Great Cove are comprised of industrial, commercial and higher population suburban areas constructed prior to 1970. Many areas within the watershed have high groundwater conditions, extensive impervious cover and drainage infrastructure and collection systems that discharge directly to Great Cove and the creeks tributary to it. The Management Plan focuses on improvement of water quality through the identification, control and reduction of non-point source pollution. The Management Plan focuses on improvement of water quality through the identification, control and reduction of non-point source pollution. Sixteen conceptual designs for drainage improvement projects within the watershed were prepared, of which three projects have been successfully implemented using grant funding. Conceptual designs and estimated construction costs were prepared for each location. Additionally, the project included a review of municipal operations and best management practices identified for salt storage, truck washing, roadway and stormwater system maintenance, and highway yard storage and drainage.