Home/ Directory/ OR/ UMATILLA, CITY OF

Water system · PWSID OR4100914

UMATILLA, CITY OF

UMATILLA, OR · ~8,256 people served

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

PWSID

OR4100914

State

Oregon

City

UMATILLA

Population served

8,256

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

Latest detections from EPA’s UCMR5 monitoring (through Jul 2023). Levels in parts per trillion (ppt).

Lithium

27,000 ppt

limit —

No federal limit

Violations & enforcement

105

Violations on record

0

Unaddressed

1

Health-based

112

Enforcement actions

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

Monitoring & reporting · EPA contaminant 3014 began Aug 2025 Resolved
Other · EPA contaminant 7000 began Jul 2025 Resolved
Monitoring · Lead & Copper Rule began Feb 2025 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring · Lead & Copper Rule began Mar 2024 Resolved
Monitoring · Lead & Copper Rule began Oct 2021 Resolved
Monitoring & reporting · EPA contaminant 3028 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2034 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2033 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2032 began Jan 2005 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2005 Resolved

Recent enforcement actions

  • State action · SOX Aug 2025
  • State action · SOX Aug 2025
  • State action · SOX Mar 2025
  • State action · SOX Jul 2024
  • State action · SOX Apr 2024
  • State action · SOX Nov 2021
  • State action · SOX Apr 2021
  • State action · SOX Sep 2008

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

1 station · latest May 2025

4.09 · max 4.09 ug/L · 1

Fluoride

1 station · latest May 2025

0.32 · max 0.32 mg/L · 1

Lead

1 station · latest May 2025

0.92 · max 0.92 ug/L · 1

Manganese

1 station · latest May 2025

2.53 · max 2.53 ug/L · 1

Uranium

1 station · latest May 2025

2.76 · max 2.76 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 OR4100914 — 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.