OHA Drinking Water Services
OR41
PWS ID: 95613 ---- HILLSBORO LANDFILL
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  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
Hide analytes for all violations 		Enforcement Action - Date
Show history 		Points Contact
Report
14YApr 01, 2025 Jun 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1 1 7/22/2025
13YJan 01, 2023 Mar 31, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 10, 2023 1 4/27/2023
9YJul 01, 2022 Sep 30, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 10, 2023 1 10/12/2022
8YApr 01, 2022 Jun 30, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 10, 2023 1 7/14/2022
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: 		1
0
1
0
3

Violation history was last updated on 10/29/2025, 1 hour ago.

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More information for this water system: SDWIS ID 5496
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