CAL-AM WATER COMPANY - DUARTE

ROSEMEAD, CA · ~24,773 people served

Check your exact address → ROSEMEAD overview

Excellent

PurityRadar safety score

PWSID

CA1910186

State

California

City

ROSEMEAD

Population served

24,773

Primary source

Groundwater

Score history

▼ 15 points — the score moved from 100 to 85 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 85

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 Oct 2023). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

5.1 ppt

limit 4 ppt

Above EPA limit · 1.3×

Violations & enforcement

No violations are on record for this system in EPA’s SDWIS/ECHO data.

This profile is built from EPA public records for system CA1910186 — 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.