OHA Drinking Water Services
OR41
PWS ID: 91998 ---- NPS OREGON CAVES NATL MON
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  NO3 = Nitrate, SWTR = Surface Water Treatment Rule, TCR = Total Coliform Rule
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
750294Oct 01, 2025 Oct 31, 2025WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Dec 05, 2025 1
750291Oct 01, 2024 Oct 31, 2024WTP-A SWTR Monthly SW Report - Late/Nonreporting - 2  Show analytes Returned To Compliance - Dec 10, 2024 1
750289Feb 01, 2024 Feb 29, 2024WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Apr 04, 2024 1
750286Nov 01, 2023 Nov 30, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Jan 05, 2024 1
750283Mar 01, 2023 Mar 31, 2023 SWTR Public Notice Late/Nonreporting (Viol # 750278) - 1  Show analyte Returned To Compliance - Jun 01, 2023 1
750282Mar 01, 2023 Mar 31, 2023 SWTR Public Notice Late/Nonreporting (Viol # 750279) - 1  Show analyte Returned To Compliance - Jun 01, 2023 1
750280Mar 01, 2023 Mar 31, 2023 TCR Public Notice Late/Nonreporting (Viol # 750277) - 1 Returned To Compliance - Jun 01, 2023 1
750279Mar 01, 2023 Mar 31, 2023WTP-A SWTR Failure to Meet CT - 1  Show analyte Returned To Compliance - Jun 01, 2023 10
750278Mar 01, 2023 Mar 31, 2023WTP-A SWTR Failure to Maintain EP Disinfection - 1  Show analyte Returned To Compliance - Jun 01, 2023 10
750277Mar 01, 2023 Mar 31, 2023 TCR Acute MCL for E. coli - 1 Returned To Compliance - Jun 01, 2023 10
750276Jan 01, 2022 Dec 31, 2022EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Jan 02, 2024 5
750275Jan 01, 2022 Jan 31, 2022WTP-A SWTR Failure to Meet CT - 1  Show analyte Returned To Compliance - Apr 01, 2022 10
750274Dec 01, 2021 Dec 31, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 01, 2022 1
750270Oct 01, 2021 Oct 31, 2021WTP-A SWTR Failure to Meet CT - 1  Show analyte Returned To Compliance - Apr 01, 2022 10
750269Aug 01, 2021 Aug 31, 2021WTP-A SWTR Failure to Meet CT - 1  Show analyte Returned To Compliance - Apr 01, 2022 10
750268Jun 01, 2021 Jun 30, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Aug 09, 2021 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
74

Violation history was last updated on 5/1/2026, 69 hours ago.

For questions regarding these violations contact either: