PWSID
NY4303673
State
New York
City
WEST NYACK
Population served
270,000
Primary source
Surface water
Score history
▼ 54 points — the score moved from 100 to 46 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Nov 2025). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
9 ppt
limit 4 ppt
PFOS
Perfluorooctanesulfonic acid
5.7 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
6.2 ppt
limit 10 ppt
PFNA
Perfluorononanoic acid
5.4 ppt
limit 10 ppt
Lithium
13,800 ppt
limit —
6:2 FTS
12 ppt
limit —
PFPeA
8.3 ppt
limit —
PFBA
5 ppt
limit —
PFBS
4.4 ppt
limit —
PFHxA
3.8 ppt
limit —
PFHpA
3.1 ppt
limit —
Violations & enforcement
53
Violations on record
0
Unaddressed
3
Health-based
52
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →
Recent enforcement actions
- State action · SIF Oct 2025
- State action · SIE Sep 2025
- State action · SFJ Sep 2025
- State action · SOX Jul 2025
- State action · SIF Jul 2025
- State action · SIE Jun 2025
- State action · SFJ Jun 2025
- State action · SIF Apr 2025
This profile is built from EPA public records for system NY4303673 — 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.