EPA public water records · 25001
Barnstable County, Massachusetts
Find listed community water systems and their documented follow-up in federal fiscal 2026Q3.
- Systems with linked histories
- 15
- Systems with unresolved health-based records
- 1
- Of those, systems with a formally addressed health-based record
- 0
These counts cover the linked records shown here. A county listing can cover only part of the county or reflect a mailing location.
Find your water system
- BARNSTABLE COUNTY JAILMA4036015 · Massachusetts · 2 violation records · 0 unresolved health-based in this snapshot
- BEECHWOOD POINT CONDOSMA4172035 · Massachusetts · 5 violation records · 0 unresolved health-based in this snapshot
- BREWSTER WATER DEPARTMENTMA4041000 · Massachusetts · 22 violation records · 0 unresolved health-based in this snapshot
- CENTERVILLE OSTERVILLE MARSTONS MILLS WDMA4020002 · Massachusetts · 31 violation records · 0 unresolved health-based in this snapshot
- FALMOUTH WATER DEPTMA4096000 · Massachusetts · 2 violation records · 0 unresolved health-based in this snapshot
- HARBORSIDE VILLAGEMA4318040 · Massachusetts · 1 violation records · 0 unresolved health-based in this snapshot
- HYANNIS WATER SYSTEM, TOWN OF BARNSTABLEMA4020004 · Massachusetts · 2 violation records · 0 unresolved health-based in this snapshot
- MASSASOIT HILLS TRAILER PARKMA4318056 · Massachusetts · 3 violation records · 0 unresolved health-based in this snapshot
- ORLEANS WATER DEPARTMENTMA4224000 · Massachusetts · 30 violation records · 0 unresolved health-based in this snapshot
- OTIS AIR NATIONAL GUARD BASEMA4096001 · Massachusetts · 5 violation records · 1 unresolved health-based in this snapshot
- PLEASANT WATERMA4318091 · Massachusetts · 22 violation records · 0 unresolved health-based in this snapshot
- SANDWICH WATER DISTRICTMA4261000 · Massachusetts · 1 violation records · 0 unresolved health-based in this snapshot
- WELLFLEET APARTMENTSMA4318107 · Massachusetts · 1 violation records · 0 unresolved health-based in this snapshot
- WELLFLEET MUNICIPAL WATER SYSTEMMA4318094 · Massachusetts · 2 violation records · 0 unresolved health-based in this snapshot
- YARMOUTH WATER DEPARTMENTMA4351000 · Massachusetts · 4 violation records · 0 unresolved health-based in this snapshot
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility