SAN CAYETANO MUTUAL WATER CO

FILLMORE, CA · ~43 people served

Check your exact address → FILLMORE overview

100

Excellent

PurityRadar safety score

PWSID

CA5601116

State

California

City

FILLMORE

Population served

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 2016. Official EPA record →

Monitoring · Lead & Copper Rule began Aug 2016 Resolved

Monitoring & reporting · Total coliform began Jun 2006 Resolved

Monitoring & reporting · Nitrate began Jan 2004 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 1999 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1996 Resolved

Recent enforcement actions

State action · SFL Sep 2016
State action · SOX Sep 2016
State action · SFL Aug 2006
State action · SOX Jul 2006
State action · SFJ Jul 2005
State action · SOX May 2005
State action · SOX Apr 2002
State action · SFL Apr 2002

This profile is built from EPA public records for system CA5601116 — 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.