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Water system · PWSID NY5103700

DERING HARBOR WATER DISTRICT

SHELTER ISLAND HEIGHTS, NY · ~14 people served

Check your exact address → SHELTER ISLAND HEIGHTS overview
100
Excellent
PurityRadar safety score

PWSID

NY5103700

State

New York

City

SHELTER ISLAND HEIGHTS

Population served

14

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

32

Violations on record

0

Unaddressed

0

Health-based

24

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2018. Official EPA record →

Monitoring & reporting · Selenium began Jan 2014 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2013 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2040 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2041 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2039 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2043 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2044 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2046 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2047 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2042 began Jan 2004 Resolved

Recent enforcement actions

  • State action · SOX May 2018
  • State action · SIE Jul 2017
  • State action · SFJ Jul 2017
  • State action · SOX May 2017
  • State action · SIE Aug 2016
  • State action · SFJ Aug 2016
  • State action · SOX May 2015
  • State action · SOX May 2014

This profile is built from EPA public records for system NY5103700 — 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.