MELITA HEIGHTS MUTUAL WATER COMPANY

SANTA ROSA, CA · ~64 people served

Check your exact address → SANTA ROSA overview

100

Excellent

PurityRadar safety score

PWSID

CA4900551

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 May 2024. Official EPA record →

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Jan 2024 Addressed

Monitoring & reporting · Lead & Copper Rule began Jan 2023 Addressed

Monitoring & reporting · Total coliform began Jul 2012 Resolved

Monitoring & reporting · Lead & Copper Rule began Jun 2009 Resolved

Monitoring & reporting · Total coliform began Sep 2007 Resolved

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

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

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2005 Resolved

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

Recent enforcement actions

State action · SFL May 2024
State action · SOX Mar 2018
State action · SFL Sep 2012
State action · SOX Aug 2012
State action · SOX Jun 2011
State action · SFL Jan 2010
State action · SFL Oct 2007
State action · SOX Jul 2007

This profile is built from EPA public records for system CA4900551 — 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.