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PUBLIC WATER SYSTEM REPORT
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
D-
TAP WATER GRADE
Poor
Model score 51/88 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)
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
Official Consumer Confidence Report (CCR)
📋 The official 2026 CCR for ONSET FIRE DISTRICTWATER DEPT. has not yet been published on WaterCheckup.
Are you the water operator for ONSET FIRE DISTRICTWATER DEPT.? Publish your official CCR here for free — your customers are already finding this page.
Residents: Your public water system is required by EPA to publish an annual CCR by July 1st each year. Contact ONSET FIRE DISTRICTWATER DEPT.directly to request a copy, or check the EPA's national CCR portal at cfpub.epa.gov/ccr.
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 public water system 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.
Certified Filter Recommendations
Matched to what's actually in your water
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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