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Water system · PWSID NY5103271

GREENLAWN WATER DISTRICT

GREENLAWN, NY · ~42,000 people served

Check your exact address → GREENLAWN overview
100
Excellent
PurityRadar safety score

PWSID

NY5103271

State

New York

City

GREENLAWN

Population served

42,000

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

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 Apr 2024). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

3.2 ppt

limit 10 ppt

Below EPA limit

6:2 FTS

11 ppt

limit —

No federal limit

PFPeA

3 ppt

limit —

No federal limit

Violations & enforcement

8

Violations on record

0

Unaddressed

1

Health-based

57

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 1011 began Apr 2023 Resolved
Monitoring & reporting · Nitrate began Apr 2023 Resolved
Monitoring & reporting · Nitrite began Apr 2023 Resolved
Monitoring & reporting · EPA contaminant 1009 began Apr 2023 Resolved
Other · EPA contaminant 7000 began May 2012 Resolved
Monitoring & reporting · Total coliform began Aug 2011 Resolved
Monitoring & reporting · EPA contaminant 3014 began Jun 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2000 Resolved

Recent enforcement actions

  • State action · SFJ Jul 2025
  • State action · SFO Jul 2025
  • State action · SIE Jul 2025
  • State action · SIE Jan 2025
  • State action · SFJ Jan 2025
  • State action · SFJ Jul 2024
  • State action · SIE Jul 2024
  • State action · SFJ Jul 2024

This profile is built from EPA public records for system NY5103271 — 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.