CORVALLIS, CITY OF

CORVALLIS, OR · ~61,468 people served

Check your exact address → CORVALLIS overview

100

Excellent

PurityRadar safety score

PWSID

OR4100225

State

Oregon

City

CORVALLIS

Population served

61,468

Primary source

Surface water

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 Dec 2020. Official EPA record →

Monitoring & reporting · EPA contaminant 0300 began Oct 2020 Resolved

Monitoring & reporting · EPA contaminant 0200 began Oct 2020 Resolved

Monitoring & reporting · EPA contaminant 0300 began Oct 2020 Resolved

Monitoring & reporting · EPA contaminant 0200 began Oct 2020 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2020 Resolved

Monitoring · Lead & Copper Rule began Jun 2020 Resolved

Monitoring & reporting · EPA contaminant 0200 began Dec 2019 Resolved

Monitoring & reporting · EPA contaminant 0300 began Dec 2019 Resolved

Recent enforcement actions

State action · SOX Dec 2020
State action · SOX Dec 2020
State action · SOX Jul 2020
State action · SOX Feb 2020
State action · SOX Dec 2019
State action · SOX Oct 2017
State action · SOX May 2012
State action · SOX May 2012

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Manganese

1 station · latest Apr 2021

24.8 · max 34 ug/L · 6

Arsenic

1 station · latest Apr 2021

0.38 · max 0.46 ug/L · 4

Atrazine

1 station · latest Jan 2021

5.95 · max 6.42 ng/L · 2

Lead

1 station · latest Jan 2021

0.34 · max 0.34 ug/L · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system OR4100225 — 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.