Is WILLIAMSPORT MUN WATER AUTH Water Safe to Drink in 2026?
Pennsylvania · PWSID PA4410173 · Surface water
Population served
51,000
Cities served
—
State / jurisdiction
Pennsylvania (PA)
PWSID
PA4410173
F
TAP WATER GRADE
High risk
Model score 0/88 from violations, PFAS profile, and monitoring signals — not a laboratory test of your faucet.
73 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
PFNAregulated
9.7
10 ppt
Within / n/a
MCL exceedance
PFOSregulated
5.1
4 ppt
Exceeds
Above health advisory
PFPeA
4.1
—
Within / n/a
Unregulated (monitored)
PFHxSregulated
3.6
10 ppt
Within / n/a
MCL exceedance
PFHxA
3.5
—
Within / n/a
Unregulated (monitored)
Source: EPA UCMR5 · ppt = parts per trillion · MCL = enforceable limit for regulated PFAS
VIOLATIONS HISTORY (FEDERAL SNAPSHOT)
EPA’s national SDWA quarterly files associate 73 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 WILLIAMSPORT MUN WATER AUTH's monitoring and violation profile, here are vetted filtration options — same picks framework as our city reports.
TOP PICKS FOR WILLIAMSPORT MUN WATER AUTH
⚠ EPA violations / contaminants in monitoring data
WHY THIS FOR WILLIAMSPORT MUN WATER AUTH · Chosen for WILLIAMSPORT MUN WATER AUTH because PFAS was detected at 9.7 ppt in UCMR5 — above the 4 ppt limit for some regulated compounds — and this system shows 73 violation record(s) in the latest federal snapshot. RO removes 99%+ of PFAS at the tap.
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