OHA Drinking Water Services
OR41
PWS ID: 90872 ---- NORTHWEST ALUMINUM COMPANY ---- INACTIVE
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  ARS = Arsenic, IOC = Inorganic Chemicals, NO2 = Nitrite, NO3 = Nitrate, SOC = Synthetic Organic Chemicals, TCR = Total Coliform Rule, VOC = Volatile Organic Chemicals
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
900592341Jan 01, 2011 Dec 31, 2019EP-B ARS Chemical Late/Nonreporting - 1 No Longer Required To Comply - Feb 03, 2022 1
900592340Jan 01, 2011 Dec 31, 2019EP-C ARS Chemical Late/Nonreporting - 1 No Longer Required To Comply - Feb 03, 2022 1
900592365Jan 01, 2011 Dec 31, 2019EP-B IOC Chemical Late/Nonreporting - 12  Show analytes No Longer Required To Comply - Feb 03, 2022 1
900592353Jan 01, 2011 Dec 31, 2019EP-C IOC Chemical Late/Nonreporting - 12  Show analytes No Longer Required To Comply - Feb 03, 2022 1
900592339Jan 01, 2011 Dec 31, 2019EP-B NO2 Chemical Late/Nonreporting - 1 No Longer Required To Comply - Feb 03, 2022 1
900592338Jan 01, 2011 Dec 31, 2019EP-C NO2 Chemical Late/Nonreporting - 1 No Longer Required To Comply - Feb 03, 2022 1
900592337Jan 01, 2019 Dec 31, 2019EP-B NO3 Chemical Late/Nonreporting - 1 No Longer Required To Comply - Feb 03, 2022 5
900592336Jan 01, 2019 Dec 31, 2019EP-C NO3 Chemical Late/Nonreporting - 1 No Longer Required To Comply - Feb 03, 2022 5
900592423Jan 01, 2017 Dec 31, 2019EP-B SOC Chemical Late/Nonreporting - 29  Show analytes No Longer Required To Comply - Feb 03, 2022 1
900592394Jan 01, 2017 Dec 31, 2019EP-C SOC Chemical Late/Nonreporting - 29  Show analytes No Longer Required To Comply - Feb 03, 2022 1
900592473Jan 01, 2021 Jan 31, 2021 TCR Routine Coliform - Did Not Report ANY - 1 No Longer Required To Comply - Feb 03, 2022 1
900592468Nov 01, 2020 Nov 30, 2020 TCR Acute MCL for E. coli - 1 No Longer Required To Comply - Feb 03, 2022 10
900592465Jan 01, 2017 Dec 31, 2019EP-C VOC Chemical Late/Nonreporting - 21  Show analytes No Longer Required To Comply - Feb 03, 2022 1
SYSTEM SCORE SUMMARY
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Violation history was last updated on 11/23/2024, 13 hours ago.

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More information for this water system: SDWIS ID 799
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