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Water system · PWSID CA5610040

CAL AMERICAN WATER CO

ROSEMEAD, CA · ~66,809 people served

Check your exact address → ROSEMEAD overview
100
Excellent
PurityRadar safety score

PWSID

CA5610040

State

California

City

ROSEMEAD

Population served

66,809

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 Jun 2024). Levels in parts per trillion (ppt).

Lithium

15,100 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

1

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2024. Official EPA record →

Monitoring · Lead & Copper Rule began Oct 2022 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 1997 Resolved

Recent enforcement actions

  • State action · SOX Nov 2024
  • State action · SFL Mar 2023
  • State action · SOX Nov 2022
  • State action · SFL Aug 2001
  • State action · SOX Jul 2001
  • EPA/federal action · EOX Mar 2000
  • State action · SOX Sep 1998
  • State action · SFJ Dec 1997

This profile is built from EPA public records for system CA5610040 — 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.