PWSID
MA3344000
State
Massachusetts
City
WINCHESTER
Population served
22,970
Primary source
Surface water
Score history
No change since tracking began Jun 18, 2026.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.
Violations & enforcement
22
Violations on record
0
Unaddressed
1
Health-based
19
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jun 2014. Official EPA record →
Recent enforcement actions
- State action · SOX Jun 2014
- State action · SFJ May 2014
- State action · SFL Jul 2009
- State action · SOX Aug 2006
- State action · SFL Jan 2006
- State action · SOX Jul 2002
- State action · SFL Jan 2002
- State action · SOX Jun 1996
This profile is built from EPA public records for system MA3344000 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.