OHA Drinking Water Services
OR41
PWS ID: 06002 ---- OSU COLUMBIA BASIN AG RESEARCH STA
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
900846824YApr 01, 2025 Jun 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Oct 23, 2025 1
900846823YJul 01, 2024 Sep 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Dec 19, 2024 1
900846822YOct 01, 2023 Dec 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Feb 05, 2024 1
900846821YJan 01, 2022 Dec 31, 2022EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Aug 01, 2023 5
900846820YOct 01, 2022 Dec 31, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Mar 17, 2023 1
900846819YApr 01, 2022 Jun 30, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Aug 19, 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: 		0
0
0
0
10

Violation history was last updated on 4/1/2026, 11 hours ago.

For questions regarding these violations contact either: