SUMMIT VIEW RANCH MUTUAL WATER CO.

SANTA ROSA, CA · ~45 people served

Check your exact address → SANTA ROSA overview

100

Excellent

PurityRadar safety score

PWSID

CA4900892

State

California

City

SANTA ROSA

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 Aug 2008. Official EPA record →

Monitoring & reporting · Total coliform began Feb 2008 Resolved

Monitoring & reporting · Nitrate began Jan 2007 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jan 2001 Resolved

Monitoring & reporting · Total coliform began May 1994 Resolved

Recent enforcement actions

State action · SOX Aug 2008
State action · SFL Jul 2008
State action · SFL Apr 2008
State action · SOX Mar 2008
State action · SFL Feb 2001
State action · SOX Feb 2001
State action · SFL Aug 1994
State action · SOX Jun 1994

This profile is built from EPA public records for system CA4900892 — 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.