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Water system · PWSID OR4101309

HAT ROCK WATER COMPANY

100
Excellent
PurityRadar safety score

PWSID

OR4101309

State

Oregon

City

HERMISTON

Population served

150

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

128

Violations on record

0

Unaddressed

14

Health-based

117

Enforcement actions

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

Monitoring · Lead & Copper Rule began May 2024 Resolved
Monitoring · Lead & Copper Rule began Jan 2024 Resolved
Other · EPA contaminant 7000 began Oct 2023 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Monitoring & reporting · Nitrate began Jan 2021 Resolved
Monitoring & reporting · Nitrate began Jul 2020 Resolved
Monitoring & reporting · Nitrate began Apr 2020 Resolved
Monitoring · Lead & Copper Rule began Mar 2020 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 2020 Resolved

Recent enforcement actions

  • State action · SOX Jun 2024
  • State action · SOX Feb 2024
  • State action · SOX Feb 2024
  • State action · SOX Oct 2023
  • State action · SOX Sep 2023
  • State action · SOX Sep 2023
  • State action · SOX Sep 2023
  • State action · SOX Sep 2023

This profile is built from EPA public records for system OR4101309 — 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.