Managing Our Rainwater Runoff
Rainwater (or stormwater) runoff is defined as rainfall or snowmelt that flows over the ground. Paved surfaces like driveways, sidewalks and streets prevent rainwater from naturally soaking into the ground. Rainwater can pick up debris, dirt, motor oils, animal droppings, soaps, fertilizers, pesticides, and other pollutants. These pollutants then flow into a storm sewer system or directly to a lake, river, wetland, and eventually, Long Island Sound. Anything that enters a storm sewer system is discharged untreated into the waterbodies we use for swimming, fishing, and providing drinking water.

Notice of Review of the 2020 Annual Report for The Town of Groton Stormwater Management Plan

MS4 Annual Report 2020 2-21 Final Draft for Public Comment

Below are some links to information about how the Town manages our rainwater runoff.

• Town of Groton Stormwater Management Plan 2019 Annual Report
• Town of Groton Stormwater Management Plan April 1, 2017
• Climate Corps Dec 2020 Groton Town Final Project
• Stormwater Pollution Solutions, What You Can Do!
• MS4 Outfall Map

• Illicit Discharge Detection and Elimination (IDDE) Program
• Illicit Stormwater Discharge Ordinance No. 288
• How to Report Illicit Discharges

Public Input to Proposed Stormwater Changes

Check on project applications that disturb 1+ acres & do not require land use approval

Visit these web sites for more information about stormwater runoff:

• CT Department of Environmental Protection
• US Environmental Protection Agency
• Long Island Sound Study

Link to educational resources for children:

• Educational Materials for Students
• Explore Long Island Sound (LIS) Habitats