OXNARD WATER DEPT

OXNARD, CA · ~200,232 people served

Check your exact address → OXNARD overview

100

Excellent

PurityRadar safety score

PWSID

CA5610007

State

California

City

OXNARD

Population served

200,232

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

Lithium

29,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2015. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Oct 2015 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2008 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2008 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2004 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

State action · SOX Dec 2015
State action · SFL Dec 2015
State action · SFJ Sep 2008
State action · SOX Sep 2008
State action · SFL Jul 2004
State action · SOX Jul 2004
EPA/federal action · EOX Mar 2000
State action · SOX Apr 1997

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

Copper

6 stations · latest Dec 2021

75.2 · max 165 ug/L · 8

Nitrate

1 station · latest Feb 2021

0.17 · max 0.17 mg/L · 1

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 CA5610007 — 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.