LIBERTY UTILITIES NEW YORK - MERRICK

MERRICK, NY · ~135,000 people served

Check your exact address → MERRICK overview

100

Excellent

PurityRadar safety score

PWSID

NY2902840

State

New York

City

MERRICK

Population served

135,000

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 2023). Levels in parts per trillion (ppt).

Lithium

139,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Treatment technique · Lead & Copper Rule health-based began Jul 2024 Resolved

Treatment technique · Lead & Copper Rule health-based began Jan 2024 Resolved

Treatment technique · Lead & Copper Rule health-based began Jul 2023 Resolved

Monitoring & reporting · EPA contaminant 2041 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2040 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2035 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2010 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2020 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2031 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2037 began Jul 2015 Resolved

Monitoring & reporting · EPA contaminant 2005 began Jul 2015 Resolved

Recent enforcement actions

State action · SOX May 2025
State action · SFG May 2025
State action · SIF May 2025
State action · SFJ May 2025
State action · SIE May 2025
State action · SOX Mar 2016
State action · SIF Mar 2016
State action · SIE Oct 2015

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

3 stations · latest Dec 2025

30.3 · max 157 umol/L · 86

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system NY2902840 — 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.