OHA Drinking Water Services
OR41
PWS ID: 95571 ---- HANLEY FARM LIVING HISTORY MUSEUM
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		Monitoring Period
Begin
End 		Facility
ID		 Analyte
Group		 Violation Type - Analyte Count
Show analytes for all violations 		Enforcement Action - Date
Hide history 		Points Contact
Report
38Dec 01, 2025 Dec 31, 2025WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1 1
37Nov 01, 2025 Nov 30, 2025WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1 1
36Oct 01, 2025 Oct 31, 2025WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1 1
34Jul 01, 2025 Sep 30, 2025EP-A NO3 Chemical Late/Nonreporting - 1 5
33Sep 01, 2025 Sep 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Nov 04, 2025
 1
32Jun 01, 2025 Jun 30, 2025WTP-A GWR Failure to Maintain 4-log Treatment - 1
Returned To Compliance - Sep 03, 2025
 10
31Jun 01, 2025 Jun 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Jul 22, 2025
 1
30Mar 01, 2025 Mar 31, 2025WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - May 02, 2025
 1
29Jan 01, 2025 Mar 31, 2025EP-A NO3 Chemical Late/Nonreporting - 1
Returned To Compliance - Apr 24, 2025
 5
28Feb 01, 2025 Feb 28, 2025 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Apr 02, 2025
 1
27Aug 01, 2024 Aug 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Oct 02, 2024
 1
26Apr 01, 2024 Jun 30, 2024EP-A NO3 Chemical MCL based on Average of Samples - 1
Returned To Compliance - Dec 30, 2024
 10
25Dec 01, 2023 Dec 31, 2023 TCR Public Notice Late/Nonreporting (Viol # 23) - 1
Returned To Compliance - Dec 23, 2023
Returned To Compliance - Jan 03, 2024
 1
23Dec 01, 2023 Dec 31, 2023 TCR Acute MCL for E. coli - 1
Returned To Compliance - Jan 12, 2024
 10
24Nov 01, 2023 Nov 30, 2023WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - Jan 03, 2024
 1
22Jun 01, 2023 Jun 30, 2023WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - Aug 02, 2023
 1
21Jun 01, 2022 Jun 30, 2022WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - Jul 11, 2022
 1
20May 01, 2022 May 31, 2022WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - Jun 15, 2022
 1
19Apr 01, 2022 Apr 30, 2022WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - Jun 15, 2022
 1
18Feb 01, 2022 Feb 28, 2022WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - Jun 15, 2022
 1
17Jan 01, 2022 Jan 31, 2022WTP-A GWR Monthly GW Compliance Report - Late/Nonreporting - 1
Returned To Compliance - Jun 15, 2022
 1
16Nov 01, 2021 Nov 30, 2021 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - Dec 16, 2021
 1
13Jan 30, 2021 Oct 28, 2021 GWR Failure to Correct Source Contamination - 1
Returned To Compliance - Oct 28, 2020
 5
15Jan 30, 2021 Jul 06, 2021 GWR Public Notice Late/Nonreporting (Viol # 13) - 1
Returned To Compliance - Jul 06, 2021
 1
14Apr 01, 2021 Apr 30, 2021 TCR Routine Coliform - Did Not Report ANY - 1
Returned To Compliance - May 26, 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: 		8
0
8
0
56

Violation history was last updated on 3/18/2026, 1 hour ago.

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