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Water system · PWSID OR4100615

HERITAGE IMPROVEMENT DISTRICT

PENDLETON, OR · ~125 people served

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

PWSID

OR4100615

State

Oregon

City

PENDLETON

Population served

125

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

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

103

Violations on record

0

Unaddressed

6

Health-based

112

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2019. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2018 Resolved
Other · EPA contaminant 7500 began Jun 2014 Resolved
Monitoring & reporting · EPA contaminant 3014 began May 2014 Resolved
Monitoring & reporting · EPA contaminant 3014 began Apr 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2013 Resolved
Other · EPA contaminant 7500 began Nov 2012 Resolved
Monitoring & reporting · EPA contaminant 3014 began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2012 Resolved
Other · EPA contaminant 7500 began Nov 2010 Resolved
Other · EPA contaminant 7500 began Sep 2010 Resolved
Monitoring & reporting · EPA contaminant 3014 began Sep 2010 Resolved

Recent enforcement actions

  • State action · SOX Jun 2019
  • State action · SOX Aug 2016
  • State action · SOX Jun 2014
  • State action · SIE May 2014
  • State action · SOX May 2014
  • State action · SOX Jan 2014
  • State action · SIF Apr 2013
  • State action · SIF Apr 2013

This profile is built from EPA public records for system OR4100615 — 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.