OROSI PUBLIC UTILITY DISTRICT

OROSI, CA · ~8,300 people served

Check your exact address → OROSI overview

100

Excellent

PurityRadar safety score

PWSID

CA5410008

State

California

City

OROSI

Population served

8,300

Primary source

Groundwater

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

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 Mar 2000. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Jan 1998 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 1997 Resolved

Max contaminant level (MCL) · Total coliform health-based began May 1997 Resolved

Max contaminant level (MCL) · Total coliform health-based began Feb 1997 Resolved

Monitoring & reporting · Total coliform began May 1996 Resolved

Monitoring & reporting · Total coliform began Dec 1995 Resolved

Max contaminant level (MCL) · Total coliform health-based began Feb 1994 Resolved

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

Recent enforcement actions

EPA/federal action · EOX Mar 2000
State action · SFJ Mar 1998
State action · SOX Feb 1998
State action · SOX Jan 1998
State action · SFJ Jan 1998
State action · SFJ Jun 1997
State action · SOX Jun 1997
State action · SOX Feb 1997

This profile is built from EPA public records for system CA5410008 — 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.