OHA Drinking Water Services
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		Auto-
RTC?		Monitoring Period
Begin
End 		Determination
Date		Facility
ID		 Analyte
Group		 Violation Type - Analyte Count
Show analytes for all violations 		Enforcement Action - Date
Hide history 		Points
900592468NNov 01, 2020 Nov 30, 2020Dec 03, 2020 TCR Acute MCL for E. coli - 1
No Longer Required To Comply - Feb 03, 2022
 10
900592473YJan 01, 2021 Jan 31, 2021Feb 11, 2021 TCR Routine Coliform - Did Not Report ANY - 1
No Longer Required To Comply - Feb 03, 2022
 1
900592465YJan 01, 2017 Dec 31, 2019Jan 30, 2020EP-C VOC Chemical Late/Nonreporting - 21  Show analytes
No Longer Required To Comply - Feb 03, 2022
 1
900592423YJan 01, 2017 Dec 31, 2019Jan 30, 2020EP-B SOC Chemical Late/Nonreporting - 29  Show analytes
No Longer Required To Comply - Feb 03, 2022
 1
900592394YJan 01, 2017 Dec 31, 2019Jan 30, 2020EP-C SOC Chemical Late/Nonreporting - 29  Show analytes
No Longer Required To Comply - Feb 03, 2022
 1
900592365YJan 01, 2011 Dec 31, 2019Jan 30, 2020EP-B IOC Chemical Late/Nonreporting - 12  Show analytes
No Longer Required To Comply - Feb 03, 2022
 1
900592353YJan 01, 2011 Dec 31, 2019Jan 30, 2020EP-C IOC Chemical Late/Nonreporting - 12  Show analytes
No Longer Required To Comply - Feb 03, 2022
 1
900592341YJan 01, 2011 Dec 31, 2019Jan 30, 2020EP-B ARS Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
 1
900592340YJan 01, 2011 Dec 31, 2019Jan 30, 2020EP-C ARS Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
 1
900592339YJan 01, 2011 Dec 31, 2019Jan 30, 2020EP-B NO2 Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
 1
900592338YJan 01, 2011 Dec 31, 2019Jan 30, 2020EP-C NO2 Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
 1
900592337YJan 01, 2019 Dec 31, 2019Jan 30, 2020EP-B NO3 Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
 5
900592336YJan 01, 2019 Dec 31, 2019Jan 30, 2020EP-C NO3 Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
 5
SYSTEM SCORE SUMMARY
Learn about system scores		System scores are not calculated for inactive systems

Violation history was last updated on 12/8/2023, 24 hours ago.

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