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Water system · PWSID CA4500016

LAKEHEAD SUBD MUTUAL WATER CO

LAKEHEAD, CA · ~70 people served

Check your exact address → LAKEHEAD overview
85
Excellent
PurityRadar safety score

PWSID

CA4500016

State

California

City

LAKEHEAD

Population served

70

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

4

Violations on record

2

Unaddressed

2

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2016. Official EPA record →

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Monitoring · Lead & Copper Rule began Jun 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2013 Resolved

Recent enforcement actions

  • State action · SIF Aug 2016
  • State action · SFL Jul 2016
  • State action · SOX Jul 2016
  • State action · SOX May 2013
  • State action · SFL May 2013

This profile is built from EPA public records for system CA4500016 — 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.