Nassau County is among the most developed areas in New York State. Concentrated development in urbanized suburban areas substantially increases impervious surfaces, such as paved streets, driveways, parking lots and sidewalks on which pollutants settle and remain until a storm event washes them into nearby storm drains.

 As a result, surfaces constructed with impervious materials like concrete and asphalt create large amounts of “dirty” stormwater runoff during precipitation. After precipitation, stormwater runoff flows over these impervious surfaces collecting and transporting pollutants such as excess nutrients from fertilizer, litter, salts, pesticides,  petrochemicals/oils, and

bacteria/pathogens from animal waste. Stormwater is then directly discharged untreated, into streams, lakes and bays.

The water quality of these receiving waterbodies is of major concern. This translates into real socioeconomic impacts to our region due to harmful algae blooms, fish kills, sediment erosion and beach closure due to bacterial contamination. Ongoing development presents the need for consideration towards its impact on the water quality in Nassau County.


Stormwater Pollution and Green Infrastructure Solutions

The Nassau County Soil and Water Conservation District and NYSDEC have produced an educational film: Stormwater Pollution and Green Infrastructure Solutions.  This film highlights stormwater runoff impacts throughout New York State and showcases several green infrastructure solutions to help mitigate these issues associated with stormwater runoff pollution.

To view the film, please click play below, or click here to be redirected to our YouTube page