Is ONSET FIRE DISTRICTWATER DEPT. Water Safe to Drink in 2026?
Massachusetts · PWSID MA4310003 · Ground water
Population served
5,392
Cities served
WAREHAM
State / jurisdiction
Massachusetts (MA)
PWSID
MA4310003
F
TAP WATER GRADE
High risk
Model score 0/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
72 violation record(s) in the latest EPA SDWA quarterly snapshotPFAS above EPA MCL (UCMR5 regulated compounds)
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CONTAMINANTS — EPA UCMR5 MONITORING
Compound
Level (ppt)
EPA limit
Health guideline
Status
PFOSregulated
7.1
4 ppt
Exceeds
Above health advisory
Source: EPA UCMR5 · ppt = parts per trillion · MCL = enforceable limit for regulated PFAS
VIOLATIONS HISTORY (FEDERAL SNAPSHOT)
EPA’s national SDWA quarterly files associate 72 violation-related records with this system in the same reporting quarter as the utility snapshot used on WaterCheckup. This is not a complete historical docket — see ECHO and SDWIS for full compliance context.
Based on ONSET FIRE DISTRICTWATER DEPT.'s monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
TOP PICKS FOR ONSET FIRE DISTRICTWATER DEPT.
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR ONSET FIRE DISTRICTWATER DEPT. · Chosen for ONSET FIRE DISTRICTWATER DEPT. because PFAS was detected at 7.1 ppt in UCMR5 — above the 4 ppt limit for some regulated compounds — and this system shows 72 violation record(s) in the latest federal snapshot. RO removes 99%+ of PFAS at the tap.
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