LIBERTY -YERMO

DOWNEY, CA · ~861 people served

Check your exact address → DOWNEY overview

100

Excellent

PurityRadar safety score

PWSID

CA3610118

State

California

City

DOWNEY

Population served

861

Primary source

Groundwater

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2018. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Aug 2013 Resolved

Monitoring & reporting · EPA contaminant 0700 began Aug 2013 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2013 Resolved

Monitoring & reporting · Nitrate began Jan 2013 Resolved

Monitoring & reporting · Total coliform began Jan 2013 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2012 Resolved

Other began Jan 2009 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 2008 Resolved

Other began Oct 2007 Resolved

Other began Jul 2007 Resolved

Other · EPA contaminant 7000 began Jul 2007 Resolved

Recent enforcement actions

State action · SOX Apr 2018
State action · SOX Jan 2017
State action · SOX Oct 2015
State action · SOX Oct 2015
State action · SOX Jan 2014
State action · SFJ Jan 2014
State action · SFL Dec 2013
State action · SOX Nov 2013

This profile is built from EPA public records for system CA3610118 — 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.