PORTLAND WATER BUREAU

PORTLAND, OR · ~666,200 people served

Check your exact address → PORTLAND overview

100

Excellent

PurityRadar safety score

PWSID

OR4100657

State

Oregon

City

PORTLAND

Population served

666,200

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 Sep 2022. Official EPA record →

Treatment technique · EPA contaminant 0800 health-based began Dec 2017 Unaddressed

Monitoring · Lead & Copper Rule began Jul 2022 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2013 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2009 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jul 2007 Resolved

Monitoring & reporting · Arsenic began Jan 2004 Resolved

Recent enforcement actions

State action · SOX Sep 2022
State action · SIF Jun 2022
State action · SIF Dec 2017
State action · SFK Dec 2017
State action · SIF May 2014
State action · SOX Nov 2013
State action · SIF Nov 2013
State action · SIE Oct 2013

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

Arsenic

5 stations · latest Nov 2021

1.19 · max 3.81 ug/L · 14

Uranium

4 stations · latest Nov 2021

0.16 · max 1.81 ug/L · 10

Manganese

2 stations · latest Nov 2021

8.72 · max 17.3 mg/L · 4

Copper

2 stations · latest Nov 2021

2.24 · max 2.54 ug/L · 2

Lead

1 station · latest Nov 2021

0.22 · max 0.22 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 OR4100657 — 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.