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Water system · PWSID OR4100932

WARRENTON, CITY OF

WARRENTON, OR · ~9,100 people served

Check your exact address → WARRENTON overview
100
Excellent
PurityRadar safety score

PWSID

OR4100932

State

Oregon

City

WARRENTON

Population served

9,100

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

118

Violations on record

0

Unaddressed

2

Health-based

75

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2013 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2013 Resolved
Monitoring & reporting · EPA contaminant 0300 began Jun 2009 Resolved
Monitoring & reporting · EPA contaminant 0200 began Jun 2009 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 2008 Resolved

Recent enforcement actions

  • State action · SOX Jul 2025
  • State action · SOX Mar 2014
  • State action · SIA Aug 2009
  • State action · SOX Aug 2009
  • State action · SOX Aug 2009
  • State action · SOX Aug 2009
  • State action · SOX Aug 2009
  • State action · SOX Aug 2009

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

3 stations · latest Oct 2025

64.8 · max 141 ug/L · 17

Arsenic

1 station · latest Oct 2025

0.555 · max 0.95 ug/L · 14

Lead

1 station · latest Apr 2024

0.24 · max 0.24 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 OR4100932 — 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.