EPA v. SHERBORN MS4

Case summary

On July 24, 2025, the Region issued Administrative Compliance Orders to the Town of Pembroke (Docket No. CWA-AO-R01-FY25-74) and the Town of Sherborn (Docket No. CWA-AO-R01-FY25-74) for their respective violations of the 2016 General Permit for Stormwater Discharges from Small Municipal Separate Storm Sewer Systems in Massachusetts (2016 MS4 Permit). The Orders cite their failure to develop or modify, as appropriate, a post-construction stormwater management ordinance within three (3) years of the effective date of the Permit (i.e., by July 1, 2022). The Order to the Town of Sherborn requires it to enact a post-construction stormwater management ordinance or other regulatory mechanism by September 30, 2025; notify EPA that such an ordinance or regulatory mechanism has become effective within 7 days of its effective date; and provide the Agency with a copy of the regulatory mechanism. The Orders will facilitate the reduction of pollutants found in the permittees' stormwater through the retention or treatment of stormwater after construction on new or redeveloped sites. The Region coordinated with the Massachusetts Department of Environmental Protection (MassDEP) on this matter.

Defendants (1)

• town of Sherborn, MANamed in complaintNamed in settlement

Facilities (1)

• SHERBORN TOWN OF

  19 WASHINGTON STREET, SHERBORN, MA, 01770

  Registry ID: 110050978983

Statutes cited

• CWA 301/402 — NPDES Permit Violations

Enforcement conclusions (1)

• SHERBORN MS4entered 2025-07-24

  Primary law: CWA

Timeline (5 milestones)

• 2025-07-24Enforcement Action Data Entered
• 2025-07-24Complaint Filed/Proposed Order
• 2025-07-24Final Order Issued
• 2025-12-31NPDES Closed
• 2025-12-31Enforcement Action Closed