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Water system · PWSID NJ1414003

JEFFERSON TWP W U MILTON SYS

LAKE HOPATCONG, NJ · ~4,500 people served

Check your exact address → LAKE HOPATCONG overview
60
Fair
PurityRadar safety score

PWSID

NJ1414003

State

New Jersey

City

LAKE HOPATCONG

Population served

4,500

Primary source

Groundwater

Score history

▼ 40 points — the score moved from 100 to 60 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 60

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

PFOS

Perfluorooctanesulfonic acid

6.8 ppt

limit 4 ppt

Above EPA limit · 1.7×

PFOA

Perfluorooctanoic acid

6.1 ppt

limit 4 ppt

Above EPA limit · 1.5×

Lithium

17,100 ppt

limit —

No federal limit

PFBA

6.6 ppt

limit —

No federal limit

PFBS

5.8 ppt

limit —

No federal limit

PFPeA

4.3 ppt

limit —

No federal limit

PFHpA

3.6 ppt

limit —

No federal limit

PFHxA

3 ppt

limit —

No federal limit

Violations & enforcement

223

Violations on record

1

Unaddressed

3

Health-based

151

Enforcement actions

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

Reporting · Lead & Copper Rule began Jun 2025 Unaddressed
Other · EPA contaminant 7000 began Oct 2024 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 2024 Resolved
Other · EPA contaminant 7500 began Nov 2023 Resolved
Other · EPA contaminant 7500 began Nov 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Sep 2023 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Treatment technique · Lead & Copper Rule health-based began Jul 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2023 Resolved

Recent enforcement actions

  • State action · SFJ Aug 2025
  • State action · SIE Aug 2025
  • State action · SFJ Aug 2025
  • State action · SIE Aug 2025
  • State action · SIE Aug 2025
  • State action · SFJ Aug 2025
  • State action · SFJ Jul 2025
  • State action · SOX Jan 2025

This profile is built from EPA public records for system NJ1414003 — 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.