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Water system · PWSID OH0600612

ST MARYS CITY

ST MARYS, OH · ~9,356 people served

Check your exact address → ST MARYS overview
100
Excellent
PurityRadar safety score

PWSID

OH0600612

State

Ohio

City

ST MARYS

Population served

9,356

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

Lithium

21,200 ppt

limit —

No federal limit

Violations & enforcement

4

Violations on record

2

Unaddressed

1

Health-based

11

Enforcement actions

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

Other · EPA contaminant 7000 began Feb 2024 Unaddressed
Other · EPA contaminant 7000 began Jan 2019 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Recent enforcement actions

  • State action · SIF Sep 2025
  • State action · SIA Sep 2025
  • State action · SIE Sep 2025
  • State action · SOX Aug 2025
  • State action · SIF Jun 2025
  • EPA/federal action · EIE Jun 2025
  • State action · SIE May 2025
  • State action · SIA May 2025

This profile is built from EPA public records for system OH0600612 — 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.