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Water system · PWSID OH3801512

WALNUT CREEK WATER CO.

WALNUT CREEK, OH · ~1,270 people served

Check your exact address → WALNUT CREEK overview
100
Excellent
PurityRadar safety score

PWSID

OH3801512

State

Ohio

City

WALNUT CREEK

Population served

1,270

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

91

Violations on record

3

Unaddressed

1

Health-based

43

Enforcement actions

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

Other · EPA contaminant 7000 began Oct 2022 Unaddressed
Other · EPA contaminant 7000 began Jan 2020 Unaddressed
Other · EPA contaminant 7000 began Nov 2018 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved
Reporting · EPA contaminant 5200 began Oct 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2011 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2005 Resolved
Monitoring & reporting · EPA contaminant 1036 began Jan 2003 Resolved
Monitoring & reporting · EPA contaminant 1085 began Jan 2003 Resolved
Monitoring & reporting · EPA contaminant 1075 began Jan 2003 Resolved
Monitoring & reporting · Barium began Jan 2003 Resolved
Monitoring & reporting · Selenium began Jan 2003 Resolved

Recent enforcement actions

  • State action · SIF Jun 2025
  • State action · SIF Jun 2025
  • EPA/federal action · EIE Jun 2025
  • State action · SIA Jun 2025
  • State action · SIE Jun 2025
  • State action · SIE May 2025
  • State action · SIA May 2025
  • State action · SOX Oct 2024

This profile is built from EPA public records for system OH3801512 — 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.