Home/ Directory/ OR/ CHART SUBDIVISION

Water system · PWSID OR4101415

CHART SUBDIVISION

HERMISTON, OR · ~125 people served

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

PWSID

OR4101415

State

Oregon

City

HERMISTON

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

187

Violations on record

0

Unaddressed

7

Health-based

152

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2024. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring · Lead & Copper Rule began Mar 2022 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Nov 2017 Resolved
Monitoring · Lead & Copper Rule began May 2017 Resolved
Monitoring & reporting · EPA contaminant 3014 began Feb 2017 Resolved
Monitoring & reporting · EPA contaminant 3014 began Dec 2016 Resolved
Monitoring & reporting · Total coliform began Mar 2016 Resolved
Monitoring & reporting · Total coliform began Dec 2015 Resolved
Monitoring & reporting · EPA contaminant 3014 began Nov 2014 Resolved
Monitoring & reporting · Total coliform began Nov 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2011 Resolved
Monitoring & reporting · Nitrate began Jan 2011 Resolved

Recent enforcement actions

  • State action · SOX Jul 2024
  • State action · SOX Apr 2022
  • State action · SOX Feb 2018
  • State action · SIF Nov 2017
  • State action · SIE Nov 2017
  • State action · SOX Jun 2017
  • State action · SOX Feb 2017
  • State action · SOX Apr 2016

This profile is built from EPA public records for system OR4101415 — 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.