OCHOCO WEST WTR & SAN AUTHORITY

PRINEVILLE, OR · ~400 people served

Check your exact address → PRINEVILLE overview

100

Excellent

PurityRadar safety score

PWSID

OR4100681

State

Oregon

City

PRINEVILLE

Population served

400

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 Sep 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Resolved

Monitoring & reporting · Nitrate began Jan 2023 Resolved

Monitoring & reporting · Arsenic began Oct 2022 Resolved

Monitoring & reporting · Arsenic began Oct 2021 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2019 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2019 Resolved

Monitoring & reporting · Arsenic began Jul 2012 Resolved

Monitoring & reporting · Arsenic began Jan 2010 Resolved

Monitoring & reporting · Total coliform began Sep 2005 Resolved

Other · EPA contaminant 7000 began Oct 2004 Resolved

Other · EPA contaminant 7000 began Jul 2004 Resolved

Other · EPA contaminant 7000 began Oct 2003 Resolved

Recent enforcement actions

State action · SOX Sep 2025
State action · SOX Mar 2024
State action · SOX Jan 2023
State action · SOX Sep 2022
State action · SOX Jun 2022
State action · SOX Oct 2012
State action · SIA Oct 2012
State action · SIA Apr 2010

This profile is built from EPA public records for system OR4100681 — 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.