HOPLAND PUBLIC UTILITY DISTRICT

UKIAH, CA · ~1,076 people served

Check your exact address → UKIAH overview

100

Excellent

PurityRadar safety score

PWSID

CA2310010

State

California

City

UKIAH

Population served

1,076

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 Oct 2015. Official EPA record →

Other began Sep 2008 Resolved

Other began Jan 2007 Resolved

Monitoring & reporting · Total coliform began Oct 2005 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2005 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved

Other began Nov 2004 Resolved

Other · EPA contaminant 7500 began Nov 2004 Resolved

Monitoring & reporting · Total coliform began Nov 2004 Resolved

Monitoring & reporting · Total coliform began Sep 2004 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2001 Resolved

Other · EPA contaminant 7000 began Jul 2001 Resolved

Monitoring & reporting · Total coliform began Jun 2001 Resolved

Recent enforcement actions

State action · SOX Oct 2015
State action · SFL Oct 2015
State action · SOX Oct 2015
State action · SFL Oct 2015
State action · SOX Oct 2015
State action · SOX Dec 2013
State action · SFJ Sep 2006
State action · SFJ Sep 2006

This profile is built from EPA public records for system CA2310010 — 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.