SONOMA COUNTY CSA 41-SALMON CREEK

SANTA ROSA, CA · ~427 people served

Check your exact address → SANTA ROSA overview

100

Excellent

PurityRadar safety score

PWSID

CA4900543

State

California

City

SANTA ROSA

Population served

427

Primary source

Surface water

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 Jul 2017. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jun 2014 Resolved

Monitoring & reporting · EPA contaminant 2031 began Jan 2007 Resolved

Monitoring & reporting · Total coliform began Apr 1998 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SOX Jul 2017
State action · SFL Jun 2017
State action · SOX Jul 2008
State action · SFL Jul 2008
EPA/federal action · EOX Mar 2000
State action · SOX May 1998
State action · SFJ May 1998

This profile is built from EPA public records for system CA4900543 — 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.