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Water system · PWSID CA1910203

LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM

ALHAMBRA, CA · ~11,509 people served

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

PWSID

CA1910203

State

California

City

ALHAMBRA

Population served

11,509

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

Lithium

11,600 ppt

limit —

No federal limit

Violations & enforcement

1

Violations on record

0

Unaddressed

1

Health-based

2

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2003. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Jun 2003 Resolved

Recent enforcement actions

  • State action · SFL Aug 2003
  • State action · SOX Aug 2003

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Mar 2023

0.731 · max 0.731 mg/l as N · 2

Arsenic

1 station · latest Mar 2023

0.38 · max 0.38 ug/l · 1

Copper

1 station · latest Mar 2023

1 · max 1 ug/l · 1

Fluoride

1 station · latest Mar 2023

0.21 · max 0.21 mg/l · 1

Lead

1 station · latest Mar 2023

0.162 · max 0.162 ug/l · 1

Uranium

1 station · latest Mar 2023

3.47 · max 3.47 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA1910203 — 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.