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Water system · PWSID OH4501512

JOHNSTOWN CITY PWS

JOHNSTOWN, OH · ~5,200 people served

Check your exact address → JOHNSTOWN overview
100
Excellent
PurityRadar safety score

PWSID

OH4501512

State

Ohio

City

JOHNSTOWN

Population served

5,200

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 Nov 2024). Levels in parts per trillion (ppt).

Lithium

18,000 ppt

limit —

No federal limit

Violations & enforcement

29

Violations on record

2

Unaddressed

0

Health-based

26

Enforcement actions

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

Other · EPA contaminant 7000 began Nov 2025 Unaddressed
Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Other · EPA contaminant 7500 began Aug 2020 Resolved
Monitoring · Lead & Copper Rule began Jun 2019 Resolved
Monitoring & reporting · Total coliform began Jan 2015 Resolved
Other · EPA contaminant 7000 began Jul 2011 Resolved
Monitoring & reporting · Total coliform began Aug 2000 Resolved
Monitoring & reporting · Nitrate began Jul 1995 Resolved
Monitoring & reporting · EPA contaminant 2990 began Jan 1995 Resolved
Monitoring & reporting · EPA contaminant 2987 began Jan 1995 Resolved
Monitoring & reporting · EPA contaminant 2989 began Jan 1995 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 1995 Resolved

Recent enforcement actions

  • State action · SIA Nov 2025
  • State action · SIA Oct 2025
  • State action · SIE Oct 2025
  • State action · SIF Nov 2020
  • State action · SOX Nov 2020
  • State action · SIA Sep 2020
  • State action · SIE Aug 2019
  • State action · SIA Aug 2019

This profile is built from EPA public records for system OH4501512 — 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.