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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

MS0140010 , Town of Lyon

Violations

1–30 of 127 validated violations, most recently determined first. 16 of the 30 listed on this page are recorded as part of 7 violation groups. Across the whole record the agency holds 28 groups, holding 93 violations.

Please note: some of these violations may have been resolved and/or returned to compliance.

Grouped and ungrouped violations are in one list; the group column says which is which.

Every validated violation on record for Town of Lyon, 1 to 30 of 127 validated violations shown, most recently determined first.
Fiscal year Determined Violation Category Analyte Facility Group
2026 Apr 24, 2026 Monitoring, Routine (DBP), Major, 3036 Monitoring Chlorine Distribution DS000 Not in a group
2026 Apr 15, 2026 Monitoring, Routine, Major (RTCR), 3037 Monitoring E. Coli Not recorded Not in a group
2025 Apr 30, 2025 Monitoring, Routine Major, 3030 Monitoring Nitrate-Nitrite Treatment Facility TF101 2025-47798 NO2-NO3
2025 Apr 30, 2025 Monitoring, Routine Major, 3031 Monitoring Nitrate Treatment Facility TF101 2025-47798 NO2-NO3
2025 Apr 30, 2025 Monitoring, Routine Major, 3032 Monitoring Nitrite Treatment Facility TF101 2025-47798 NO2-NO3
2025 Feb 26, 2025 LSL Inventory-Initial, 3034 Treatment Technique Lead and Copper Rule Revisions Not recorded Not in a group
2025 Feb 26, 2025 LSL Reporting-Initial, 3035 Reporting Lead and Copper Rule Revisions Not recorded Not in a group
2025 Jan 23, 2025 Public Notice Rule Linked to Violation, 3033 Public Notice Public Notice Not recorded Not in a group
2025 Oct 8, 2024 CCR Adequacy/Availability/Content, 3029 Reporting Consumer Confidence Rule Not recorded Not in a group
2024 Jul 19, 2024 Monitoring, Routine (DBP), Major, 3027 Monitoring TTHM Distribution DS000 2024-47366 TTHM/Haa5
2024 Jul 19, 2024 Monitoring, Routine (DBP), Major, 3028 Monitoring Total Haloacetic Acids (Haa5) Distribution DS000 2024-47366 TTHM/Haa5
2024 Oct 4, 2023 CCR Report, 3024 Reporting Consumer Confidence Rule Not recorded Not in a group
2023 Sep 20, 2023 Monitoring, Routine (DBP), Major, 3022 Monitoring TTHM Distribution DS000 2023-46592 TTHM/Haa5
2023 Sep 20, 2023 Monitoring, Routine (DBP), Major, 3023 Monitoring Total Haloacetic Acids (Haa5) Distribution DS000 2023-46592 TTHM/Haa5
2022 Dec 28, 2021 Monitoring, Routine Major, 3011 Monitoring Nitrate-Nitrite Treatment Facility TF101 2022-44107 NO2-NO3
2022 Dec 28, 2021 Monitoring, Routine Major, 3012 Monitoring Nitrate Treatment Facility TF101 2022-44107 NO2-NO3
2022 Dec 28, 2021 Monitoring, Routine Major, 3013 Monitoring Nitrite Treatment Facility TF101 2022-44107 NO2-NO3
2021 Nov 19, 2021 Monitoring, Routine (DBP), Major, 3009 Monitoring TTHM Distribution DS000 2021-43996 TTHM/Haa5
2021 Nov 19, 2021 Monitoring, Routine (DBP), Major, 3010 Monitoring Total Haloacetic Acids (Haa5) Distribution DS000 2021-43996 TTHM/Haa5
2021 May 24, 2021 Monitoring, Routine (DBP), Major, 3006 Monitoring TTHM Distribution DS000 2021-43836 TTHM/Haa5
2021 May 24, 2021 Monitoring, Routine (DBP), Major, 3007 Monitoring Total Haloacetic Acids (Haa5) Distribution DS000 2021-43836 TTHM/Haa5
2021 May 3, 2021 Monitoring, Routine (DBP), Major, 3004 Monitoring TTHM Distribution DS000 2021-43789 TTHM/Haa5
2021 May 3, 2021 Monitoring, Routine (DBP), Major, 3005 Monitoring Total Haloacetic Acids (Haa5) Distribution DS000 2021-43789 TTHM/Haa5
2018 Feb 13, 2018 MCL, Lraa, 3000 Maximum Contaminant Level TTHM Distribution DS000 Not in a group
2016 Sep 13, 2016 MCL, Lraa, 2989 Maximum Contaminant Level TTHM Distribution DS000 Not in a group
2016 May 10, 2016 MCL, Lraa, 2988 Maximum Contaminant Level TTHM Distribution DS000 Not in a group
2016 Mar 1, 2016 MCL, Lraa, 2987 Maximum Contaminant Level TTHM Distribution DS000 Not in a group
2016 Feb 29, 2016 MCL, Lraa, 2986 Maximum Contaminant Level TTHM Distribution DS000 Not in a group
2015 Aug 17, 2015 MCL, Average, 2985 Maximum Contaminant Level TTHM Not recorded Not in a group
2015 Aug 13, 2015 Public Notice Rule Linked to Violation, 2984 Public Notice Public Notice Not recorded Not in a group