MS4 ANNUAL REPORTING: Municipal separate stormwater sewer systems (MS4s) that are covered by the NYS Department of Environmental Conservation (NYS DEC) General Permit for Stormwater Discharges from Municipal Separate Storm Sewer Systems (GP-0-15-003) are subject to annual reporting requirements. The June 1st MS4 annual reporting deadline for the March 10, 2020 to March 9, 2021… Read More