PASADENA WATER AND POWER

PASADENA, CA · ~164,344 people served

Check your exact address → PASADENA overview

100

Excellent

PurityRadar safety score

PWSID

CA1910124

State

California

City

PASADENA

Population served

164,344

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

Lithium

54,900 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 1999. Official EPA record →

Monitoring & reporting · Nitrate began Apr 1999 Resolved

Max contaminant level (MCL) · Nitrate health-based began Jan 1999 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jun 1993 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1992 Resolved

Recent enforcement actions

State action · SOX Jun 1999
State action · SFL Jun 1999
State action · SOX Jul 1993
State action · SFL Jul 1993
State action · SFJ Nov 1992
State action · SOX Nov 1992

This profile is built from EPA public records for system CA1910124 — 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.