SAN MARCOS MUTUAL WATER COMPANY

SANTA BARBARA, CA · ~120 people served

Check your exact address → SANTA BARBARA overview

100

Excellent

PurityRadar safety score

PWSID

CA4200580

State

California

City

SANTA BARBARA

Population served

120

Primary source

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 Oct 2004. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Sep 2004 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 2000 Resolved

Max contaminant level (MCL) · Total coliform health-based began Mar 1997 Resolved

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

Recent enforcement actions

State action · SOX Oct 2004
State action · SIE Sep 2004
State action · SOX Aug 2000
State action · SOX Apr 1997
State action · SIE Mar 1997
State action · SOX Sep 1996
State action · SIE Aug 1996

This profile is built from EPA public records for system CA4200580 — 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.