LIBERTY UTILITIES - COMPTON

DOWNEY, CA · ~26,371 people served

Check your exact address → DOWNEY overview

100

Excellent

PurityRadar safety score

PWSID

CA1910021

State

California

City

DOWNEY

Population served

26,371

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 Nov 2023). Levels in parts per trillion (ppt).

Lithium

32,500 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2020. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2019 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved

Monitoring & reporting · Total coliform began Feb 1998 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 1997 Resolved

Recent enforcement actions

State action · SOX Jun 2020
State action · SFL Nov 2019
State action · SIA Jan 2010
State action · SFJ May 1998
State action · SOX May 1998
State action · SOX Apr 1997

This profile is built from EPA public records for system CA1910021 — 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.