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Water system · PWSID NJ0112001

HAMILTON TOWNSHIP MUA

MAYS LANDING, NJ · ~21,720 people served

Check your exact address → MAYS LANDING overview

Excellent

PurityRadar safety score

PWSID

NJ0112001

State

New Jersey

City

MAYS LANDING

Population served

21,720

Primary source

Groundwater

Score history

▼ 15 points — the score moved from 100 to 85 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 85

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 Mar 2025). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

5.2 ppt

limit 4 ppt

Above EPA limit · 1.3×

Violations & enforcement

121

Violations on record

Unaddressed

Health-based

103

Enforcement actions

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

Monitoring & reporting · EPA contaminant 3014 began Jun 2012 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Dec 2024 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2022 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Feb 2020 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Feb 2020 Resolved

Monitoring & reporting · EPA contaminant 1085 began Jan 2020 Resolved

Monitoring & reporting · Cadmium began Jan 2020 Resolved

Monitoring & reporting · Barium began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 1036 began Jan 2020 Resolved

Monitoring & reporting · Antimony began Jan 2020 Resolved

Recent enforcement actions

State action · SOX Feb 2025
State action · SFJ Feb 2025
State action · SFJ Mar 2023
State action · SFJ Mar 2023
State action · SFJ Mar 2023
State action · SFJ Mar 2023
State action · SFJ Mar 2023
State action · SFJ Mar 2023

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

Fluoride

1 station · latest Jun 2023

0.02 · max 0.03 mg/l · 14

Arsenic

1 station · latest Mar 2023

0.19 · max 0.4 ug/l · 6

Lead

1 station · latest Mar 2023

0.41 · max 0.52 ug/l · 3

Manganese

1 station · latest Mar 2023

11.4 · max 13.5 ug/l · 3

Copper

1 station · latest Mar 2023

0.4 · max 0.4 ug/l · 1

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 NJ0112001 — 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.