OHA Drinking Water Services
OR41
PWS ID: 00543 ---- MOSIER, CITY OF
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  DBP = Disinfection Byproducts, LCR = Lead & Copper Rule, 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
903361040YJan 01, 2022 Dec 31, 2024DIST-A DBP DBP Late/Nonreporting - 2  Show analytes 1
903361031YJan 01, 2018 Dec 31, 2020DIST-A DBP DBP Late/Nonreporting - 2  Show analytes Returned To Compliance - Nov 16, 2021 1
903361035YJan 01, 2022 Dec 31, 2024DIST-A LCR LCR Late/Nonreporting - 1  Show analyte 1
903361029YJan 01, 2018 Dec 31, 2020DIST-A LCR LCR Late/Nonreporting - 1  Show analyte Returned To Compliance - Aug 26, 2021 1 7/8/2021
903361043YMar 01, 2025 Mar 31, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361042YFeb 01, 2025 Feb 28, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361041YJan 01, 2025 Jan 31, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361038YDec 01, 2024 Dec 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361037YNov 01, 2024 Nov 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361036YOct 01, 2024 Oct 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361034YSep 01, 2024 Sep 30, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361033YAug 01, 2024 Aug 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 1
903361032YJul 01, 2024 Jul 31, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 28, 2025 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: 		2
0
2
0
11

Violation history was last updated on 11/4/2025, 1 hour ago.

For questions regarding these violations contact either:

More information for this water system: SDWIS ID 3366
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