LANCASTER WATER COMPANY

LANCASTER, CA · ~80 people served

Check your exact address → LANCASTER overview

100

Excellent

PurityRadar safety score

PWSID

CA1900808

State

California

City

LANCASTER

Population served

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 Jan 2024. Official EPA record →

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed

Max contaminant level (MCL) · Total coliform health-based began Dec 2015 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2014 Resolved

Monitoring & reporting · Total coliform began Oct 2011 Resolved

Recent enforcement actions

State action · SOX Jan 2024
State action · SOX Aug 2021
State action · SFJ Jun 2018
State action · SOX Jan 2016
State action · SFJ Jan 2016
State action · SOX Nov 2014
State action · SFJ Nov 2014
State action · SFL Dec 2011

This profile is built from EPA public records for system CA1900808 — 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.