HILMAR COUNTY WATER DISTRICT

HILMAR, CA · ~5,504 people served

Check your exact address → HILMAR overview

100

Excellent

PurityRadar safety score

PWSID

CA2410012

State

California

City

HILMAR

Population served

5,504

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 Jun 2020. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2019 Resolved

Recent enforcement actions

State action · SOX Jun 2020
State action · SFL Mar 2020
State action · SIA Jan 2009
State action · SOX Jan 2009
EPA/federal action · EOX Mar 2000
EPA/federal action · EOX Dec 1993
EPA/federal action · EFJ May 1993
State action · SID Sep 1986

This profile is built from EPA public records for system CA2410012 — 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.