TRIUNFO WATER & SANITATION DISTRICT

WESTLAKE VILLAGE, CA · ~13,898 people served

Check your exact address → WESTLAKE VILLAGE overview

100

Excellent

PurityRadar safety score

PWSID

CA5610043

State

California

City

WESTLAKE VILLAGE

Population served

13,898

Primary source

SWP

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

Latest detections from EPA’s UCMR5 monitoring (through Sep 2024). Levels in parts per trillion (ppt).

Lithium

9,800 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2004. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Jul 2004 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 2002 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2000 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1998 Resolved

Monitoring & reporting · Total coliform began Jan 1993 Resolved

Recent enforcement actions

State action · SOX Aug 2004
State action · SFJ Aug 2004
State action · SOX Jun 2002
State action · SFJ Jun 2002
State action · SOX Nov 2000
State action · SFL Nov 2000
State action · SFJ Aug 1998
EPA/federal action · EOX Dec 1993

This profile is built from EPA public records for system CA5610043 — 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.