CAL AMERICAN WATER COMPANY - PIRU

ROSEMEAD, CA · ~2,003 people served

Check your exact address → ROSEMEAD overview

100

Excellent

PurityRadar safety score

PWSID

CA5610021

State

California

City

ROSEMEAD

Population served

2,003

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 Sep 2021. Official EPA record →

Monitoring · Lead & Copper Rule began May 2021 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jan 2002 Resolved

Monitoring & reporting · Total coliform began Feb 1998 Resolved

Recent enforcement actions

State action · SFL Sep 2021
State action · SOX Jun 2021
State action · SOX Feb 2002
State action · SFJ Jan 2002
State action · SOX Sep 1998
State action · SFJ Mar 1998

This profile is built from EPA public records for system CA5610021 — 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.