OHA Drinking Water Services
OR41
PWS ID: 06011 ---- MADRONE ESTATES
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  NO3 = Nitrate, TCR = Total Coliform Rule
Green shading indicates an inactive facility.  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
Show history 		Points Contact
Report
900847020Jul 01, 2025 Sep 30, 2025 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Oct 23, 2025 1 10/14/2025
900847022Jan 01, 2025 Dec 31, 2025EP-A NO3 Chemical Late/Nonreporting - 1 Inactive Facility - Nov 04, 2025 5
900847021Jan 01, 2025 Dec 31, 2025EP-C NO3 Chemical Late/Nonreporting - 1 Inactive Facility - Nov 14, 2025 5
900847019Jan 01, 2022 Dec 31, 2022EP-C NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Jan 08, 2024 5 2/6/2023
900847018Jan 01, 2022 Mar 31, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jul 05, 2022 1
900847017Nov 01, 2021 Nov 30, 2021 TCR Temporary Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jul 05, 2022 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: 		0
0
0
0
18

Violation history was last updated on 3/20/2026, 54 hours ago.

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