OHA Drinking Water Services
OR41
PWS ID: 95174 ---- COLUMBIA RIVER DAIRY
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  ARS = Arsenic, GWR = Ground Water Rule, IOC = Inorganic Chemicals, NO2 = Nitrite, NO3 = Nitrate, TCR = Total Coliform Rule
Gray shading indicates return to compliance. 

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Violation
Number		Auto-
RTC?		Monitoring Period
Begin
End 		Determination
Date		Facility
ID		 Analyte
Group		 Violation Type - Analyte Count
Show analytes for all violations 		Enforcement Action - Date
Show history 		Points Contact
Report
901648599YJan 01, 2020 Dec 31, 2022Feb 02, 2023EP-D ARS Chemical Late/Nonreporting - 1 Returned To Compliance - Mar 06, 2023 1
901648598YJan 01, 2020 Dec 31, 2022Feb 02, 2023EP-E ARS Chemical Late/Nonreporting - 1 Returned To Compliance - Jul 05, 2023 1
901648606NAug 25, 2025 Sep 05, 2025Sep 08, 2025DIST-A GWR Source Sample - Late/Nonreporting - 1 1
901648600NJan 01, 2023 Dec 31, 2023Jan 11, 2024SRC-BA GWR Source Assessment Sample - Late/Nonreporting - 1 Returned To Compliance - Nov 22, 2024 1
901648597YJan 01, 2020 Dec 31, 2022Feb 02, 2023EP-D IOC Chemical Late/Nonreporting - 12  Show analytes Returned To Compliance - Jul 05, 2023 1
901648585YJan 01, 2020 Dec 31, 2022Feb 02, 2023EP-E IOC Chemical Late/Nonreporting - 12  Show analytes Returned To Compliance - Jul 05, 2023 1
901648571YJan 01, 2020 Dec 31, 2022Feb 02, 2023EP-D NO2 Chemical Late/Nonreporting - 1 Returned To Compliance - Mar 06, 2023 1
901648570YJan 01, 2020 Dec 31, 2022Feb 02, 2023EP-E NO2 Chemical Late/Nonreporting - 1 Returned To Compliance - Jul 05, 2023 1
901648573YJan 01, 2022 Dec 31, 2022Feb 02, 2023EP-D NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Mar 06, 2023 5
901648572YJan 01, 2022 Dec 31, 2022Feb 02, 2023EP-E NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Jul 05, 2023 5
901648608YFeb 01, 2026 Feb 28, 2026Mar 11, 2026 TCR Routine Coliform - Did Not Report ANY - 1 1
901648607YOct 01, 2025 Oct 31, 2025Nov 13, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Nov 07, 2025 1
901648604YDec 01, 2024 Dec 31, 2024Jan 13, 2025 TCR Temporary Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Feb 14, 2025 1
901648602YJul 01, 2024 Sep 30, 2024Oct 14, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Feb 14, 2025 1
901648601YJan 01, 2024 Mar 31, 2024Apr 11, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jul 03, 2024 1
901648569YOct 01, 2022 Dec 31, 2022Jan 11, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Feb 17, 2023 1
901648568YJan 01, 2022 Mar 31, 2022Apr 11, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 03, 2022 1
901648567YOct 01, 2021 Dec 31, 2021Jan 11, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 03, 2022 1 1/13/2022
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: 		2
0
2
0
24

Violation history was last updated on 3/17/2026, 5 hours ago.

For questions regarding these violations contact either: