OHA Drinking Water Services
OR41
PWS ID: 00878 ---- TIGARD, CITY OF
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  DBP = Disinfection Byproducts, IOC = Inorganic Chemicals, RAD = Radionuclides
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
903218960YJan 01, 2023 Dec 31, 2025Mar 19, 2026EP-I IOC Chemical Late/Nonreporting - 10  Show analytes 1
903218950YOct 01, 2025 Dec 31, 2025Mar 18, 2026EP-I RAD Chemical Late/Nonreporting - 3  Show analytes 1
903218940YJan 01, 2025 Mar 31, 2025Apr 22, 2025DIST-A DBP DBP Late/Nonreporting - 2  Show analytes Returned To Compliance - Jun 04, 2025 1
903218938NAug 15, 2021 Nov 09, 2021Oct 14, 2021 No Designated DRC - 0 Returned To Compliance - Nov 09, 2021 5 9/20/2021
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
6

Violation history was last updated on 3/23/2026, 6 hours ago.

For questions regarding these violations contact either: