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
Determination
Date
Facility
ID
Analyte
Group
Violation Type - Analyte Count
Show analytes for all violations
Enforcement Action - Date
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Points
900592473Jan 01, 2021 Jan 31, 2021Feb 11, 2021 TCR Routine Coliform - Did Not Report ANY - 1
No Longer Required To Comply - Feb 03, 2022
1
900592468Nov 01, 2020 Nov 30, 2020Dec 03, 2020 TCR Acute MCL for E. coli - 1
No Longer Required To Comply - Feb 03, 2022
10
900592465Jan 01, 2017 Dec 31, 2019Jan 30, 2020EP-C VOC Chemical Late/Nonreporting - 21  Show analytes
No Longer Required To Comply - Feb 03, 2022
1
900592423Jan 01, 2017 Dec 31, 2019Jan 30, 2020EP-B SOC Chemical Late/Nonreporting - 29  Show analytes
No Longer Required To Comply - Feb 03, 2022
1
900592394Jan 01, 2017 Dec 31, 2019Jan 30, 2020EP-C SOC Chemical Late/Nonreporting - 29  Hide analytes
1,2-DIBROMO-3-CHLOROPROPANE
2,4,5-TP
2,4-D
ATRAZINE
BENZO(A)PYRENE
BHC-GAMMA
CARBOFURAN
CHLORDANE
DALAPON
DI(2-ETHYLHEXYL) ADIPATE
DI(2-ETHYLHEXYL) PHTHALATE
DINOSEB
DIQUAT
ENDOTHALL
ENDRIN
ETHYLENE DIBROMIDE
GLYPHOSATE
HEPTACHLOR
HEPTACHLOR EPOXIDE
HEXACHLOROBENZENE
HEXACHLOROCYCLOPENTADIENE
LASSO
METHOXYCHLOR
OXAMYL
PENTACHLOROPHENOL
PICLORAM
SIMAZINE
TOTAL POLYCHLORINATED BIPHENYLS (PCB)
TOXAPHENE
No Longer Required To Comply - Feb 03, 2022
1
900592365Jan 01, 2011 Dec 31, 2019Jan 30, 2020EP-B IOC Chemical Late/Nonreporting - 12  Show analytes
No Longer Required To Comply - Feb 03, 2022
1
900592353Jan 01, 2011 Dec 31, 2019Jan 30, 2020EP-C IOC Chemical Late/Nonreporting - 12  Show analytes
No Longer Required To Comply - Feb 03, 2022
1
900592341Jan 01, 2011 Dec 31, 2019Jan 30, 2020EP-B ARS Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
1
900592340Jan 01, 2011 Dec 31, 2019Jan 30, 2020EP-C ARS Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
1
900592339Jan 01, 2011 Dec 31, 2019Jan 30, 2020EP-B NO2 Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
1
900592338Jan 01, 2011 Dec 31, 2019Jan 30, 2020EP-C NO2 Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
1
900592337Jan 01, 2019 Dec 31, 2019Jan 30, 2020EP-B NO3 Chemical Late/Nonreporting - 1
No Longer Required To Comply - Feb 03, 2022
5
900592336Jan 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
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Violation history was last updated on 3/1/2024, 18 hours ago.

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More information for this water system: SDWIS ID 799
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