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Water system · PWSID CA5610050

CALLEGUAS MUNICIPAL WATER DIST

THOUSAND OAKS, CA

Check your exact address → THOUSAND OAKS overview
100
Excellent
PurityRadar safety score

PWSID

CA5610050

State

California

City

THOUSAND OAKS

Population served

—

Primary source

Surface water

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

1

Violations on record

0

Unaddressed

1

Health-based

2

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 1998. Official EPA record →

Treatment technique · EPA contaminant 0200 health-based began Mar 1992 Resolved

Recent enforcement actions

  • State action · SOX Aug 1998
  • State action · SFL Apr 1989

This profile is built from EPA public records for system CA5610050 — 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.