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Water system · PWSID CT0580031

GRISWOLD MHP LLC

GREAT NECK, NY · ~99 people served

Check your exact address → GREAT NECK overview
100
Excellent
PurityRadar safety score

PWSID

CT0580031

State

New York

City

GREAT NECK

Population served

99

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

77

Violations on record

2

Unaddressed

5

Health-based

100

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2024. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jul 1994 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jan 1994 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jul 2022 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2021 Resolved
Treatment technique · Lead & Copper Rule health-based began Apr 2020 Resolved
Other · EPA contaminant 7500 began Apr 2020 Resolved
Other · EPA contaminant 7000 began Aug 2019 Resolved
Other · EPA contaminant 7000 began Aug 2017 Resolved
Other · EPA contaminant 7000 began Jul 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2016 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved

Recent enforcement actions

  • State action · SOX Jan 2024
  • State action · SOX Aug 2023
  • State action · SIF Aug 2023
  • State action · SIE Jun 2023
  • State action · SIA Jun 2023
  • State action · SIF May 2023
  • State action · SIA May 2023
  • State action · SIE May 2023

This profile is built from EPA public records for system CT0580031 — 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.