OHA Drinking Water Services
OR41
PWS ID: 05763 ---- THISTLE HILL WATER CO-OP
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. 

Show Auto-RTC  |  Show Determination Dates  |  Return to default sort order
Go to public notices
Violation
Number		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
3297035Jan 01, 2021 Dec 31, 2021SRC-AA GWR Source Assessment Sample - Late/Nonreporting - 1 No Longer Required To Comply - Dec 31, 2021 1
3297056Oct 01, 2025 Dec 31, 2025 TCR Routine Coliform - Did Not Report ANY - 1 1
3297055Jul 01, 2025 Sep 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1 1
3297054Apr 01, 2025 Jun 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1 1
3297053Jan 01, 2025 Mar 31, 2025 TCR Routine Coliform - Did Not Report ANY - 1 1
3297052Jan 01, 2024 Dec 31, 2024EP-A NO3 Chemical Late/Nonreporting - 1 5
3297051Oct 01, 2024 Dec 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1 1
3297050Jul 01, 2024 Sep 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1 1
3297049Apr 01, 2024 Jun 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1 1
3297048Jan 01, 2024 Mar 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1 1
3297047Jan 01, 2023 Dec 31, 2023EP-A NO3 Chemical Late/Nonreporting - 1 5
3297046Oct 01, 2023 Dec 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1 1
3297045Jul 01, 2023 Sep 30, 2023 TCR Routine Coliform - Did Not Report ANY - 1 1
3297044Apr 01, 2023 Jun 30, 2023 TCR Routine Coliform - Did Not Report ANY - 1 1
3297043Jan 01, 2023 Mar 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1 1
3297042Jan 01, 2022 Dec 31, 2022EP-A NO3 Chemical Late/Nonreporting - 1 5
3297041Oct 01, 2022 Dec 31, 2022 TCR Routine Coliform - Did Not Report ANY - 1 1
3297040Jul 01, 2022 Sep 30, 2022 TCR Routine Coliform - Did Not Report ANY - 1 1
3297039Apr 01, 2022 Jun 30, 2022 TCR Routine Coliform - Did Not Report ANY - 1 1
3297038Jan 01, 2022 Mar 31, 2022 TCR Routine Coliform - Did Not Report ANY - 1 1
3297037Jan 01, 2021 Dec 31, 2021EP-A NO3 Chemical Late/Nonreporting - 1 No Additional Action Needed - Dec 31, 2021 5
3297036Oct 01, 2021 Dec 31, 2021 TCR Routine Coliform - Did Not Report ANY - 1 No Additional Action Needed - Dec 31, 2021 1
3297034Jul 01, 2021 Sep 30, 2021 TCR Routine Coliform - Did Not Report ANY - 1 No Additional Action Needed - Dec 31, 2021 1
3297033Apr 01, 2021 Jun 30, 2021 TCR Routine Coliform - Did Not Report ANY - 1 No Additional Action Needed - Dec 31, 2021 1
3297032Jan 01, 2021 Mar 31, 2021 TCR Routine Coliform - Did Not Report ANY - 1 No Additional Action Needed - Dec 31, 2021 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: 		31
4
35
0
10

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

For questions regarding these violations contact either: