SANDMOUND MUTUAL

BETHEL ISLAND, CA · ~100 people served

Check your exact address → BETHEL ISLAND overview

Excellent

PurityRadar safety score

PWSID

CA0707556

State

California

City

BETHEL ISLAND

Population served

100

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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 Sep 2022. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Oct 2021 Addressed

Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 2010 Resolved

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

Recent enforcement actions

State action · SFL Sep 2022
State action · SOX Aug 2019
State action · SFO Jul 2019
State action · SFL Jul 2019
State action · SOX Jan 2011
State action · SFJ Jan 2011
State action · SOX Apr 2000

This profile is built from EPA public records for system CA0707556 — 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.