Municipal Separate Storm Sewer System (MS4)

The Municipal Separate Storm Sewer System (MS4) is a system is made up of ditches, curbs, gutters, storm sewers, and similar means of collecting or conveying runoff collected from impervious surfaces. Polluted stormwater runoff is commonly transported through MS4s before often being discharged untreated into local waterbodies. To prevent harmful pollutants from being washed or dumped into an MS4, operators must obtain a National Pollutant Discharge Elimination System NPDES permit and develop a stormwater management program. Under Phase II, operators of regulated small MS4s are required to develop and implement a stormwater management program which includes the six minimum control measures: public education and outreach; public participation and involvement; illicit discharge detection and elimination; construction site run-off control; post-construction run-off; and pollution prevention/good housekeeping.

Under Phase II, operators of regulated small MS4s are required to develop and implement a stormwater management program which includes the six minimum control measures: public education and outreach; public participation and involvement; illicit discharge detection and elimination; construction site run-off control; post-construction run-off; and pollution prevention/good housekeeping.

Each MS4 municipality is also required to submit a stormwater management plan and an annual stormwater report. Below is the latest stormwater plan and report. For additional information, please contact Village Manager Kevin Donohue, Certified Floodplain Manager at 914-939-2200.