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Water system · PWSID CA3610003

LIBERTY UTILITIES (AV RANCHOS) CORP.

DOWNEY, CA · ~64,469 people served

Check your exact address → DOWNEY overview
100
Excellent
PurityRadar safety score

PWSID

CA3610003

State

California

City

DOWNEY

Population served

64,469

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

Latest detections from EPA’s UCMR5 monitoring (through Nov 2025). Levels in parts per trillion (ppt).

Lithium

9,400 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

0

Health-based

2

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2022. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2021 Resolved

Recent enforcement actions

  • State action · SFL Mar 2022
  • State action · SOX Feb 2022

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

3 stations · latest Mar 2023

0.843 · max 1.6 mg/l as N · 6

Arsenic

3 stations · latest Mar 2023

3.9 · max 20 ug/l · 3

Copper

3 stations · latest Mar 2023

0.7 · max 2 ug/l · 3

Fluoride

3 stations · latest Mar 2023

0.47 · max 3.37 mg/l · 3

Lead

3 stations · latest Mar 2023

0.08 · max 0.482 ug/l · 3

Uranium

3 stations · latest Mar 2023

2.42 · max 10.8 ug/l · 3

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA3610003 — 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.