PWSID
NY2902827
State
New York
City
HEMPSTEAD
Population served
56,000
Primary source
Groundwater
Score history
▼ 12 points — the score moved from 100 to 88 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 Jan 2024). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
4.7 ppt
limit 4 ppt
Violations & enforcement
63
Violations on record
0
Unaddressed
1
Health-based
24
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jan 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Jan 2025
- State action · SOX May 2021
- State action · SIF May 2021
- State action · SIE Jul 2020
- State action · SOX May 2020
- State action · SIF May 2020
- State action · SIE Apr 2020
- State action · SFJ Sep 2019
This profile is built from EPA public records for system NY2902827 — 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.