OHA Drinking Water Services
OR41
PWS ID: 93697 ---- USFWS MALHEUR WILDLIFE REFUGE
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  NO3 = Nitrate, TCR = Total Coliform Rule
Gray shading indicates return to compliance. 

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Violation
Number		Auto-
RTC?		Monitoring Period
Begin
End 		Facility
ID		 Analyte
Group		 Violation Type - Analyte Count
Show analytes for all violations 		Enforcement Action - Date
Show history 		Points Contact
Report
3477439YJan 01, 2025 Dec 31, 2025EP-A NO3 Chemical Late/Nonreporting - 1 5
3477438YOct 01, 2025 Dec 31, 2025 TCR Routine Coliform - Did Not Report ANY - 1 1
3477437YApr 01, 2025 Jun 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jul 17, 2025 1
3477436YJul 01, 2024 Sep 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Nov 14, 2024 1
3477435YApr 01, 2024 Jun 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Nov 14, 2024 1
3477434YJan 01, 2023 Dec 31, 2023EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Mar 18, 2024 5 3/14/2024
3477433YOct 01, 2023 Dec 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Mar 18, 2024 1 3/14/2024
3477432YJan 01, 2023 Mar 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 02, 2023 1
3477431YJan 01, 2022 Dec 31, 2022EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Mar 18, 2024 5 3/14/2024
3477430YOct 01, 2022 Dec 31, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 02, 2023 1
3477429YJul 01, 2022 Sep 30, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 02, 2023 1
3477428YJan 01, 2022 Mar 31, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 06, 2022 1
3477427YOct 01, 2021 Dec 31, 2021 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 06, 2022 1
SYSTEM SCORE SUMMARY
Learn about system scores		Unaddressed Points:
Number of years the oldest violation has been unaddressed (n):
System Score:
Points under formal enforcement:
Points RTC'd: 		6
0
6
0
19

Violation history was last updated on 4/3/2026, 6 hours ago.

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