KERN VALLEY MUTUAL WATER COMPANY

LAKE ISABELLA, CA · ~132 people served

Check your exact address → LAKE ISABELLA overview

Excellent

PurityRadar safety score

PWSID

CA1500252

State

California

City

LAKE ISABELLA

Population served

132

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 Jan 2024. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2025 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

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

Reporting · Lead & Copper Rule began Apr 2023 Addressed

Monitoring & reporting · Lead & Copper Rule began Oct 2022 Resolved

Other · EPA contaminant 7000 began Jul 2022 Resolved

Treatment technique · Lead & Copper Rule health-based began May 2022 Resolved

Other · EPA contaminant 7000 began Jul 2021 Resolved

Monitoring & reporting · Nitrate began Jan 2021 Resolved

Other · EPA contaminant 7000 began Jul 2020 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2006 Resolved

Recent enforcement actions

State action · SOX Jan 2024
State action · SOX Sep 2023
State action · SFL Jul 2023
State action · SOX Jun 2023
State action · SFL Feb 2023
State action · SOX Feb 2023
State action · SFO Nov 2022
State action · SFL Aug 2022

This profile is built from EPA public records for system CA1500252 — 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.