OHA Drinking Water Services
OR41
PWS ID: 01420 ---- WALLOWA LAKE CO SERVICE DIST
Violation History

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

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Violation
Number
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RTC?
Monitoring Period
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End
Facility
ID
Analyte
Group
Violation Type - Analyte Count
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901789340YOct 01, 2025 Oct 31, 2025 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Dec 08, 2025
1
901789339YSep 01, 2025 Sep 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Dec 08, 2025
1
901789337YDec 01, 2024 Dec 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Feb 08, 2025
1
901789336YJul 01, 2024 Jul 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Sep 08, 2024
1
901789335YApr 01, 2024 Apr 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Jun 07, 2024
1
901789334YJan 01, 2023 Dec 31, 2023EP-C NO3 Chemical Late/Nonreporting - 1
Returned To Compliance - Mar 07, 2024
5 2/15/2024
901789333YJan 01, 2023 Dec 31, 2023EP-A NO3 Chemical Late/Nonreporting - 1
Returned To Compliance - Mar 07, 2024
5 2/15/2024
901789332YDec 01, 2023 Dec 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Feb 04, 2024
1
901789331YJan 01, 2021 Dec 31, 2023DIST-A LCR LCR Late/Nonreporting - 1
LEAD & COPPER RULE
Returned To Compliance - Sep 11, 2024
1 2/15/2024
901789330YAug 01, 2023 Aug 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Oct 07, 2023
1
SYSTEM SCORE SUMMARY
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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
18

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

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