AQUA J. MUTUAL WATER COMPANY

LANCASTER, CA · ~158 people served

Check your exact address → LANCASTER overview

100

Excellent

PurityRadar safety score

PWSID

CA1900936

State

California

City

LANCASTER

Population served

158

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 Dec 2020. Official EPA record →

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

Monitoring & reporting · Nitrate began Jan 2017 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2011 Resolved

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

Recent enforcement actions

State action · SOX Dec 2020
State action · SOX Nov 2020
State action · SFL Dec 2019
State action · SOX Oct 2018
State action · SFL Oct 2018
State action · SFL Jul 2018
State action · SOX Dec 2011
State action · SFL Dec 2011

This profile is built from EPA public records for system CA1900936 — 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.