Chelmsford Stormwater Management Requirements

The Town of Chelmsford Department of Public Works manages the Stormwater Management Program and is continuously working on fulfilling the requirements of the Environmental Protection Agency (EPA) NPDES (National Pollutant Discharge Elimination System) MS4 Stormwater Permit Regulations.  The EPA’s NPDES Stormwater Permit Regulations are federally mandated for all municipalities to eliminate all pollutants to the waters within their jurisdictions.

2016 Massachusetts Small MS4 General Permit was signed April 4, 2016 and became effective July 1, 2018. The final permit reflects modifications to the 2014 draft small MS4 general permit released for comment on September 30, 2014 and replaces the 2003 small MS4 general permit for MS4 operators within the Commonwealth of Massachusetts. EPA finalized additional modifications to the 2016 MA MS4 General Permit on December 7, 2020. The Modifications become effective January 6, 2021. 

To meet these new requirements, the Town requires additional staff and resources.  Failure to meet these requirements will result in fines for non-compliance. While these are federally mandated regulations from the EPA, individual municipalities are left to fund the permit on their own.  Chelmsford has created a Stormwater Division under the Department of Public Works which is funded by a stormwater utility fee.

For any questions or comments about the Town of Chelmsford's Stormwater Management Program, please contact the Stormwater Engineer, Courtney Thompson, at the DPW at 978-250-5228 x5235 or email

Hart Pond Swans

Don't Pollute

Contact Us

  1. Robert Wood

    Stormwater Superintendent


    Ph: 978-250-5228


    Courtney Thompson

    Stormwater Engineer


    Ph: 978-250-5228 x5235


    Scott Destrempe

    Stormwater Foreman



    Nathan Walker

     GIS Manager


    Ph: 978-250-5228 x5236

    9 Alpha Road

    Chelmsford, MA 01824


    M, W, Th: 7:00-4:00

    Tu: 7:00-6:00

    Fr: 7:00-12:00