LITTLE WALNUT WATER TREATMENT FACILITY

LANCASTER, OH · ~1,428 people served

Check your exact address → LANCASTER overview

100

Excellent

PurityRadar safety score

PWSID

OH2303212

State

Ohio

City

LANCASTER

Population served

1,428

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2009. Official EPA record →

Other · EPA contaminant 7000 began Jul 2009 Resolved

Recent enforcement actions

State action · SOX Sep 2009
State action · SIE Aug 2009
State action · SIA Aug 2009

This profile is built from EPA public records for system OH2303212 — 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.