Stormwater Information

The City of Groton is required to submit a Stormwater Management Plan for our entire drainage system to the Connecticut Department of Environmental Protection (CTDEP) as part of the Environmental Protection Agency’s (EPA) Phase II stormwater requirements. The program requires municipalities with a population of at least 1,000 people within an urbanized area to come up with goals that the City intends on meeting for six minimum control measures. These measures are as follows:

  • Public Education and Outreach
  • Public Involvement and Participation
  • Illicit Discharge and Detection
  • Construction Site Stormwater Runoff Control
  • Post Construction Stormwater Management
  • Pollution Prevention and Good Housekeeping


The City’s Engineering Department has formulated the 2017 plan.  If you would like to download a copy of the  plan, please click on Stormwater Management Plan. Hard Copies of the plan are also available at the City Clerk’s front desk at the City of Groton Municipal Building; 295 Meridian Street, Groton, Ct 06340 and at the Librarian’s desk in the Bill Memorial Library, 240 Monument Street, Groton, Ct 06340. To forward along questions or comments please send them to the City’s Public Works Department at the above address or you can send them by e-mail to

2019 - Groton MS4 Annual Report - Draft
Illicit Discharge Detection and Protection Program

Helpful Links:

Connecticut Department of Public Health
Exploring Estuaries
Long Island Sound Study
Stormwater Coalition

Do NOT follow this link or you will be banned from the site!
Due to the COVID-19 outbreak the Municipal Building has been closed to the public. All City functions can be performed via phone and by using the drop box in front of the building