EL DORADO MUTUAL WATER CO.

PALMDALE, CA · ~660 people served

Check your exact address → PALMDALE overview

100

Excellent

PurityRadar safety score

PWSID

CA1900803

State

California

City

PALMDALE

Population served

660

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

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 Sep 2020. Official EPA record →

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

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2005 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

State action · SOX Sep 2020
State action · SFL Dec 2019
State action · SOX Jan 2006
State action · SFL Jan 2006
EPA/federal action · EOX Sep 2005

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

1 station · latest Aug 2023

1.64 · max 1.67 mg/l as N · 4

Arsenic

1 station · latest Aug 2023

0.945 · max 0.96 ug/l · 2

Fluoride

1 station · latest Aug 2023

0.23 · max 0.24 mg/l · 2

Manganese

1 station · latest Aug 2023

0.71 · max 1.1 ug/l · 2

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 CA1900803 — 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.