OHA Drinking Water Services
OR41
PWS ID: 05645 ---- GANN COOPERATIVE WATER SYSTEM ---- INACTIVE
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  GWR = Ground Water Rule, 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
3435123YJul 01, 2025 Sep 30, 2025Oct 14, 2025 TCR Routine Coliform - Did Not Report ANY - 1 1
3435122NJan 30, 2025 Feb 10, 2025Feb 12, 2025DIST-A GWR Source Sample - Late/Nonreporting - 1 1
3435114YJan 01, 2021 Dec 31, 2021Jan 24, 2022EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Apr 15, 2022 5
3435113YJan 01, 2020 Dec 31, 2020Jan 26, 2021EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Apr 15, 2022 5
3435121YOct 01, 2024 Dec 31, 2024Jan 13, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jan 31, 2025 1
3435120YApr 01, 2024 Jun 30, 2024Jul 11, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Aug 07, 2024 1
3435119YJan 01, 2024 Mar 31, 2024Apr 11, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Aug 07, 2024 1
3435118YOct 01, 2023 Dec 31, 2023Jan 11, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Aug 07, 2024 1
3435117YJul 01, 2023 Sep 30, 2023Oct 11, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Aug 07, 2024 1
3435116YOct 01, 2022 Dec 31, 2022Jan 11, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 06, 2023 1
3435115YJul 01, 2022 Sep 30, 2022Oct 11, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 06, 2023 1
SYSTEM SCORE SUMMARY
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Violation history was last updated on 11/4/2025, 8 hours ago.

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More information for this water system: SDWIS ID 477
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