CALIF STATE POLYTECHNICAL UNIV - POMONA

POMONA, CA · ~29,854 people served

Check your exact address → POMONA overview

Excellent

PurityRadar safety score

PWSID

CA1910022

State

California

City

POMONA

Population served

29,854

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 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

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 Aug 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2024 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2017 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jan 1993 Resolved

Recent enforcement actions

State action · SOX Aug 2025
State action · SOX Dec 2024
State action · SFL Oct 2024
State action · SOX Dec 2017
State action · SFL Apr 2017
State action · SFL Apr 2011
State action · SOX Apr 2011
EPA/federal action · EOX Mar 2000

This profile is built from EPA public records for system CA1910022 — 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.