BELMONT TERRACE MUTUAL WATER COMPANY

SEBASTOPOL, CA · ~287 people served

Check your exact address → SEBASTOPOL overview

100

Excellent

PurityRadar safety score

PWSID

CA4900558

State

California

City

SEBASTOPOL

Population served

287

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 Jun 1998. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began May 1998 Resolved

Monitoring & reporting · Total coliform began May 1995 Resolved

Recent enforcement actions

State action · SOX Jun 1998
State action · SFJ Jun 1998
State action · SFJ Jul 1995
State action · SOX Jul 1995

This profile is built from EPA public records for system CA4900558 — 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.