WHITE MOUNTAIN MUTUAL WATER COMPANY

BISHOP, CA · ~142 people served

Check your exact address → BISHOP overview

100

Excellent

PurityRadar safety score

PWSID

CA2600621

State

California

City

BISHOP

Population served

142

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 Oct 2018. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Mar 2015 Resolved

Monitoring & reporting · Total coliform began Mar 2005 Resolved

Monitoring & reporting · Total coliform began Feb 2005 Resolved

Recent enforcement actions

State action · SOX Oct 2018
State action · SOX Sep 2018
State action · SOX Apr 2015
State action · SIF Apr 2015
State action · SFJ Feb 2015
State action · SIE Apr 2005
State action · SIE Mar 2005

This profile is built from EPA public records for system CA2600621 — 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.