OHA Drinking Water Services
OR41
PWS ID: 94523 ---- CORVALLIS MARKET
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
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RTC?
Monitoring Period
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End
Determination
Date
Facility
ID
Analyte
Group
Violation Type - Analyte Count
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Enforcement Action - Date
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3493621NJan 01, 2025 Dec 31, 2025Jan 12, 2026SRC-AA GWR Source Assessment Sample - Late/Nonreporting - 1 1
3493620YJul 01, 2025 Sep 30, 2025Dec 09, 2025EP-A NO3 Chemical Late/Nonreporting - 1 5
3493619YJan 01, 2025 Mar 31, 2025Apr 22, 2025EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Apr 15, 2025 5
3493618YJul 01, 2024 Sep 30, 2024Nov 05, 2024EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Dec 04, 2024 5
3493616YFeb 01, 2024 Feb 29, 2024Mar 11, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Apr 23, 2024 1
3493615YDec 01, 2023 Dec 31, 2023Jan 11, 2024 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jan 19, 2024 1
3493614YNov 01, 2023 Nov 30, 2023Dec 11, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jan 19, 2024 1
3493612YJul 01, 2022 Jul 31, 2022Aug 11, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Oct 20, 2022 1 6/23/2022
3493609YApr 01, 2022 Apr 30, 2022May 11, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Oct 20, 2022 1 6/23/2022
3493608NJan 01, 2022 Jan 31, 2022Jan 20, 2022 TCR Acute MCL for E. coli - 1 Returned To Compliance - Mar 31, 2022 10
SYSTEM SCORE SUMMARY
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Unaddressed Points:
Number of years the oldest violation has been unaddressed (n):
System Score:
Points under formal enforcement:
Points RTC'd:
6
0
6
0
25

Violation history was last updated on 3/16/2026, 20 hours ago.

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