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Water system · PWSID CA3010097

MIDWAY CITY MUTUAL WC

WESTMINSTER, CA · ~1,305 people served

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

PWSID

CA3010097

State

California

City

WESTMINSTER

Population served

1,305

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

14

Violations on record

0

Unaddressed

6

Health-based

28

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2021. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2020 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2009 Resolved
Monitoring & reporting · Total coliform began Sep 2009 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2009 Resolved
Treatment technique · EPA contaminant 0400 health-based began Jun 2009 Resolved
Monitoring & reporting · Total coliform began Dec 2005 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2002 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1998 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1996 Resolved

Recent enforcement actions

  • State action · SFL Jan 2021
  • State action · SOX Dec 2020
  • State action · SFL Nov 2019
  • State action · SOX Oct 2019
  • State action · SOX Nov 2012
  • State action · SIA Nov 2012
  • State action · SFL Jul 2010
  • State action · SOX Jul 2010

This profile is built from EPA public records for system CA3010097 — 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.