OHA Drinking Water Services
OR41
PWS ID: 00239 ---- LONDON WATER CO-OP
Violation History

Violations are displayed for the last 5 years only.
Group Abbreviations:  CCR = Consumer Confidence Report, DBP = Disinfection Byproducts, NO3 = Nitrate, RL = Rule, SWTR = Surface Water Treatment Rule, TCR = Total Coliform Rule, VOC = Volatile Organic Chemicals
Purple shading indicates formal enforcement.  Gray shading indicates return to compliance. 

Hide Auto-RTC  |  Hide Determination Dates
Go to public notices
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
Show history 		Points Contact
Report
903410274YJul 01, 2024 Jul 11, 2024 CCR CCR Late/Nonreporting - 1 1
903410273NApr 01, 2024 Apr 30, 2024Jun 04, 2024WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte 10
903410272NMar 01, 2024 Mar 31, 2024Apr 29, 2024WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte 10
903410271NMar 01, 2024 Mar 31, 2024Apr 29, 2024WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte 10
903410270NFeb 01, 2024 Feb 29, 2024Mar 19, 2024WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte 10
903410269NJan 01, 2024 Jan 31, 2024Mar 19, 2024WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte 10
903410268NJan 01, 2024 Jan 31, 2024Mar 19, 2024WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte 10
903410261NNov 01, 2023 Nov 30, 2023Dec 26, 2023WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte 10
903410260NNov 01, 2023 Nov 30, 2023Dec 26, 2023WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte 10
903410259NOct 01, 2023 Oct 31, 2023Nov 27, 2023WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte 10
903410258NOct 01, 2023 Oct 31, 2023Nov 27, 2023WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte 10
903410253NMay 01, 2023 May 31, 2023Jun 22, 2023WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410252NMay 01, 2023 May 31, 2023Jun 22, 2023WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410251NApr 01, 2023 Apr 30, 2023May 23, 2023WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410250NApr 01, 2023 Apr 30, 2023May 23, 2023WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410249NFeb 01, 2023 Feb 28, 2023Mar 22, 2023WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410248NFeb 01, 2023 Feb 28, 2023Mar 22, 2023WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410236NNov 01, 2022 Nov 30, 2022Feb 02, 2023WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410235NNov 01, 2022 Nov 30, 2022Feb 02, 2023WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410138NAug 01, 2020 Aug 31, 2020Nov 18, 2020WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410139NJul 01, 2020 Jul 31, 2020Nov 18, 2020WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410140NJun 01, 2020 Jun 30, 2020Nov 18, 2020WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410116NDec 01, 2019 Dec 31, 2019Jan 30, 2020WTP-A SWTR Turbidity Standards Not Met (95% NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410115NDec 01, 2019 Dec 31, 2019Jan 30, 2020WTP-A SWTR Turbidity Standards Not Met (Max NTU) - 1  Show analyte Bilateral Compliance Agreement Signed - Apr 03, 2023 10
903410096NDec 01, 2018 Jun 19, 2019 RL Public Notice Late/Nonreporting (Viol # 903410092) - 1 Bilateral Compliance Agreement Signed - Apr 03, 2023 1
903410092NDec 01, 2018 Apr 09, 2019 No Qualified Treatment Plant Operator - 1 Bilateral Compliance Agreement Signed - Apr 03, 2023 5
903410267YJan 01, 2024 Jan 31, 2024Feb 15, 2024WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Mar 04, 2024 1
903410264YDec 01, 2023 Dec 31, 2023Jan 29, 2024WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Mar 04, 2024 1
903410257YOct 01, 2023 Oct 12, 2023Oct 11, 2023 CCR CCR Certification Late/Nonreporting - 1 Returned To Compliance - Oct 12, 2023 1
903410256YJun 01, 2023 Jun 30, 2023Jul 26, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Aug 10, 2023 1
903410244YFeb 01, 2023 Feb 28, 2023Mar 13, 2023 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Mar 06, 2023 1
903410247YJan 01, 2023 Jan 31, 2023Mar 13, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Hide analytes
CHLORINE
SWTR
TURBIDITY
Returned To Compliance - Mar 10, 2023 1
903410241YDec 01, 2022 Dec 31, 2022Feb 02, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 13, 2023 1
903410242YNov 01, 2022 Nov 30, 2022Feb 02, 2023WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 13, 2023 1
903410234YOct 01, 2022 Oct 31, 2022Dec 13, 2022WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 13, 2023 1
903410231NOct 01, 2022 Oct 31, 2022Nov 04, 2022 TCR Acute MCL for E. coli - 1 Returned To Compliance - Nov 16, 2022 10
903410230YSep 01, 2022 Sep 30, 2022Oct 11, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Oct 31, 2022 1
903410229YAug 01, 2022 Aug 31, 2022Oct 11, 2022WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Oct 10, 2022 1
903410226YJul 01, 2022 Jul 31, 2022Sep 13, 2022WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Oct 10, 2022 1
903410223YJun 01, 2022 Jun 30, 2022Jul 29, 2022WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Oct 10, 2022 1
903410220YMay 01, 2022 May 31, 2022Jun 13, 2022 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Jun 03, 2022 1
903410219YMar 01, 2022 Mar 31, 2022Apr 25, 2022WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - May 10, 2022 1
903410216YDec 01, 2021 Dec 31, 2021Jan 24, 2022WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 09, 2022 1
903410213YJan 01, 2021 Dec 31, 2021Jan 24, 2022EP-A VOC Chemical Late/Nonreporting - 21  Show analytes Returned To Compliance - Oct 10, 2022 1
903410192YJan 01, 2021 Dec 31, 2021Jan 24, 2022EP-A NO3 Chemical Late/Nonreporting - 1 Returned To Compliance - Sep 22, 2022 5
903410191YNov 01, 2021 Nov 30, 2021Dec 23, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 09, 2022 1
903410188YNov 01, 2021 Nov 30, 2021Dec 13, 2021 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Dec 07, 2021 1
903410187NOct 01, 2021 Oct 31, 2021Nov 30, 2021 TCR Public Notice Late/Nonreporting (Viol # 903410179) - 1 Returned To Compliance - Mar 23, 2022 1
903410186YOct 01, 2021 Oct 31, 2021Nov 30, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 09, 2022 1
903410179NOct 01, 2021 Oct 31, 2021Oct 11, 2021 TCR Acute MCL for E. coli - 1 Returned To Compliance - Mar 23, 2022 10
903410183YSep 01, 2021 Sep 30, 2021Nov 05, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Feb 09, 2022 1
903410180YSep 01, 2021 Sep 30, 2021Oct 12, 2021 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Oct 07, 2021 1
903410178YJul 01, 2021 Jul 31, 2021Aug 24, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410175YJun 01, 2021 Jun 30, 2021Jul 22, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410172YApr 01, 2021 Jun 30, 2021Jul 22, 2021DIST-A DBP DBP Late/Nonreporting - 2  Show analytes Returned To Compliance - Jul 20, 2021 1
903410170YMay 01, 2021 May 31, 2021Jun 22, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410167YApr 01, 2021 Apr 30, 2021May 21, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410164YMar 01, 2021 Mar 31, 2021Apr 21, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410161YFeb 01, 2021 Feb 28, 2021Mar 18, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410158YFeb 01, 2021 Feb 28, 2021Mar 11, 2021 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - Mar 03, 2021 1
903410157YJan 01, 2021 Jan 31, 2021Feb 19, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410151YDec 01, 2020 Dec 31, 2020Jan 26, 2021WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410148YOct 01, 2020 Dec 31, 2020Jan 26, 2021DIST-A DBP DBP Late/Nonreporting - 2  Show analytes Returned To Compliance - Mar 18, 2021 1
903410146YNov 01, 2020 Nov 30, 2020Dec 22, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410143YOct 01, 2020 Oct 31, 2020Nov 18, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410137YSep 01, 2020 Sep 30, 2020Nov 02, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410154NAug 01, 2020 Aug 31, 2020Jan 26, 2021 SWTR Public Notice Late/Nonreporting (Viol # 903410138) - 1  Show analyte Returned To Compliance - Apr 03, 2023 1
903410134YAug 01, 2020 Aug 31, 2020Sep 28, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410153NJul 01, 2020 Jul 31, 2020Jan 26, 2021 SWTR Public Notice Late/Nonreporting (Viol # 903410139) - 1  Show analyte Returned To Compliance - Apr 03, 2023 1
903410131YJul 01, 2020 Jul 31, 2020Aug 24, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410152NJun 01, 2020 Jun 30, 2020Jan 26, 2021 SWTR Public Notice Late/Nonreporting (Viol # 903410140) - 1  Show analyte Returned To Compliance - Apr 03, 2023 1
903410128YJun 01, 2020 Jun 30, 2020Jul 29, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410125YMay 01, 2020 May 31, 2020Jun 17, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410122YApr 01, 2020 Apr 30, 2020May 28, 2020WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Sep 10, 2021 1
903410119YApr 01, 2020 Apr 30, 2020May 12, 2020 TCR Routine Coliform - Did Not Report ANY - 1 Returned To Compliance - May 07, 2020 1
903410118NDec 01, 2019 Dec 31, 2019Apr 22, 2020 SWTR Public Notice Late/Nonreporting (Viol # 903410115) - 1  Show analyte Returned To Compliance - Apr 03, 2023 1
903410114YNov 01, 2019 Nov 30, 2019Dec 16, 2019WTP-A SWTR Monthly SW Report - Late/Nonreporting - 3  Show analytes Returned To Compliance - Jan 08, 2020 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: 		101
1
102
136
73

Violation history was last updated on 11/24/2024, 5 hours ago.

For questions regarding these violations contact either:

More information for this water system: SDWIS ID 3944
System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
Coliform Summary  ::  Coliform Results  ::  Coliform Schedules  ::  LT2  ::  GW/GWUDI Source Details  ::  Plan Review  ::  Annual Fee
Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins  ::  PFAS
Lead & Copper  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA  ::  DW Source Protection
New! Visit our new Drinking Water Source Protection page.
Information for all water systems:
Water System Inventory  ::  Water System Surveys  ::  Outstanding Performers  ::  Treatment Plant Inspections  ::  Treatment  ::  Plan Reviews
Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Deficiencies  ::  System Scores  ::  Exceedances  ::  Public Notices  ::  Service Lines
Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Fluoride  ::  Certification List  ::  DW Source Protection
Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules
Need help? Email Drinking Water Services for assistance.Staff/Partner Login