COOS BAY NORTH BEND WTR BRD

COOS BAY, OR · ~34,500 people served

Check your exact address → COOS BAY overview

100

Excellent

PurityRadar safety score

PWSID

OR4100205

State

Oregon

City

COOS BAY

Population served

34,500

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 Feb 2016. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2015 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2015 Resolved

Monitoring & reporting · Total coliform began Oct 2010 Resolved

Monitoring & reporting · Total coliform began Apr 2010 Resolved

Monitoring & reporting · Total coliform began Aug 2007 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jul 2002 Resolved

Monitoring & reporting · Total coliform began Nov 1992 Resolved

Monitoring & reporting · Total coliform began Sep 1991 Resolved

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 1991 Resolved

Recent enforcement actions

State action · SOX Feb 2016
State action · SIF Jul 2011
State action · SOX Dec 2010
State action · SIA Nov 2010
State action · SIA Sep 2010
State action · SOX Jun 2010
State action · SOX Oct 2007
State action · SOX Jan 2007

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

Nitrate

6 stations · latest Jan 2024

0.505 · max 2.43 mg/L · 52

Arsenic

1 station · latest Oct 2025

1.07 · max 1.74 ug/L · 6

Manganese

1 station · latest Oct 2025

15.5 · max 34.3 ug/L · 6

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 OR4100205 — 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.