NPDES Program

NPDES Program

As part of the Environmental Protection Agency (EPA) National Pollutant Discharge Elimination System (NPDES) permitting program, the Town is required to take steps to reduce the impact of stormwater pollution. The Town of Watertown stormwater drainage system operates as a Municipal Separate Storm Sewer System (MS4) under this permit.

The Town’s program includes the following elements:

Stormwater Program Overview

2016 General Permit

The EPA issued a new, updated general permit effective July 1, 2018. This permit replaces the 2003 permit and contains updated and new requirements that the Town will have to meet. The entire contents of the permit are available at the EPA’s web-site.

https://www.epa.gov/npdes-permits/massachusetts-small-ms4-general-permit

October 2018

On October 1, 2018, the Town submitted a Notice of Intent (NOI) for coverage under the 2016 permit. The NOI contains basic information about the Town’s stormwater system and a general outline of steps the Town will take to comply with the new permit requirements.

Previous Annual Reports

View Most Recent Report (PDF) | View Past Reports