MORTON'S WARM SPRINGS / SONOMA SPRINGS

GLEN ELLEN, CA · ~59 people served

Check your exact address → GLEN ELLEN overview

100

Excellent

PurityRadar safety score

PWSID

CA4900533

State

California

City

GLEN ELLEN

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 Jan 2010. Official EPA record →

Monitoring & reporting · Total coliform began Nov 2009 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2006 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2006 Resolved

Monitoring & reporting · Total coliform began Jul 2003 Resolved

Monitoring & reporting · Total coliform began Apr 2003 Resolved

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

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

Monitoring & reporting · Total coliform began Sep 1997 Resolved

Monitoring & reporting · Total coliform began Jul 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1995 Resolved

Monitoring & reporting · Total coliform began Jun 1995 Resolved

Monitoring & reporting · Total coliform began Jan 1995 Resolved

Recent enforcement actions

State action · SFL Jan 2010
State action · SOX Dec 2009
State action · SFL May 2007
State action · SOX May 2007
EPA/federal action · EOX Dec 2003
State action · SOX Oct 2003
State action · SFL Oct 2003
State action · SOX May 2003

This profile is built from EPA public records for system CA4900533 — 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.