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IA7450019 · Iowa

MALLARD WATER SUPPLY

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown
14
EPA health-based flag
11
Health-based records unresolved in this snapshot
0
Monitoring and reporting records
3

Counties listed by EPA · Palo Alto County, Iowa

Open the EPA system record

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 13 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.

  1. Monitoring or reporting · Unaddressed by formal action

    Follow-up Or Routine LCR Tap M/RViolation 108426 · Lead and Copper Rule · Lead and Copper Rule

    Noncompliance period start October 1, 2025 · first reported June 17, 2026

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274490January 16, 2026InformalState Formal Notice of Violation issued
    274491January 16, 2026InformalState Public Notification requested
    274489February 10, 2026InformalState Public Notification received

  2. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 3825 · Arsenic · Arsenic Rule

    Noncompliance period start October 1, 2024 · period end December 31, 2024 · first reported March 26, 2025 · EPA return-to-compliance field December 31, 2024

    12 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274485December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274486June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274487December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274480March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274481December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274482October 11, 2023FormalState Administrative/Compliance Order without penalty issued
    274453October 15, 2024InformalState Public Notification requested
    274454October 15, 2024InformalState Formal Notice of Violation issued
    274452November 14, 2024InformalState Public Notification received
    274455November 20, 2024InformalState Public Notification received
    274483January 29, 2025ResolvingState Compliance achieved
    274484January 29, 2025ResolvingState Compliance achieved

  3. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 193724 · Arsenic · Arsenic Rule

    Noncompliance period start July 1, 2024 · period end September 30, 2024 · first reported December 19, 2024 · EPA return-to-compliance field September 30, 2024

    11 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274478December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274472June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274479December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274476March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274477December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274474October 11, 2023FormalState Administrative/Compliance Order without penalty issued
    274448July 15, 2024InformalState Formal Notice of Violation issued
    274449July 15, 2024InformalState Public Notification requested
    274450August 14, 2024InformalState Public Notification received
    274473January 29, 2025ResolvingState Compliance achieved
    274475January 29, 2025ResolvingState Compliance achieved

  4. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 132924 · Arsenic · Arsenic Rule

    Noncompliance period start April 1, 2024 · period end June 30, 2024 · first reported September 25, 2024 · EPA return-to-compliance field June 30, 2024

    11 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274468December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274467June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274464December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274470March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274469December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274466October 11, 2023FormalState Administrative/Compliance Order without penalty issued
    274444April 24, 2024InformalState Formal Notice of Violation issued
    274445April 24, 2024InformalState Public Notification requested
    274443May 9, 2024InformalState Public Notification received
    274465January 29, 2025ResolvingState Compliance achieved
    274471January 29, 2025ResolvingState Compliance achieved

  5. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 85024 · Arsenic · Arsenic Rule

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 13, 2024 · EPA return-to-compliance field March 31, 2024

    11 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274462December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274463June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274461December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274460March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274459December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274458October 11, 2023FormalState Administrative/Compliance Order without penalty issued
    274441January 30, 2024InformalState Formal Notice of Violation issued
    274442January 30, 2024InformalState Public Notification requested
    274440February 7, 2024InformalState Public Notification received
    274456January 29, 2025ResolvingState Compliance achieved
    274457January 29, 2025ResolvingState Compliance achieved

  6. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 107422 · Arsenic · Arsenic Rule

    Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported September 8, 2022 · EPA return-to-compliance field June 30, 2022

    13 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274415December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274414June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274416December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274417March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274406May 2, 2022InformalState Public Notification requested
    274407May 2, 2022InformalState Formal Notice of Violation issued
    274412May 2, 2022InformalState Public Notification requested
    274413May 2, 2022InformalState Formal Notice of Violation issued
    274405June 1, 2022InformalState Public Notification received
    274411June 1, 2022InformalState Public Notification received
    274424December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274434May 15, 2023ResolvingState Compliance achieved
    274438October 11, 2023FormalState Administrative/Compliance Order without penalty issued

  7. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 83622 · Arsenic · Arsenic Rule

    Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported June 16, 2022 · EPA return-to-compliance field March 31, 2022

    11 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274388December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274389June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274387December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274390February 7, 2022InformalState Public Notification received
    274391February 18, 2022InformalState Public Notification requested
    274392February 18, 2022InformalState Formal Notice of Violation issued
    274404March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274410March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274423December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274433May 15, 2023ResolvingState Compliance achieved
    274437October 11, 2023FormalState Administrative/Compliance Order without penalty issued

  8. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 83522 · Arsenic · Arsenic Rule

    Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported March 3, 2022 · EPA return-to-compliance field December 31, 2021

    11 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274382December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274384June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274381December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274386January 10, 2022InformalState Public Notification received
    274383February 18, 2022InformalState Public Notification requested
    274385February 18, 2022InformalState Formal Notice of Violation issued
    274403March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274409March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274422December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274432May 15, 2023ResolvingState Compliance achieved
    274436October 11, 2023FormalState Administrative/Compliance Order without penalty issued

  9. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 522 · Arsenic · Arsenic Rule

    Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported December 8, 2021 · EPA return-to-compliance field September 30, 2021

    11 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274380December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274378June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274365October 5, 2021InformalState Public Notification requested
    274366October 5, 2021InformalState Formal Notice of Violation issued
    274367October 6, 2021InformalState Public Notification received
    274379December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274402March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274408March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274421December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274431May 15, 2023ResolvingState Compliance achieved
    274435October 11, 2023FormalState Administrative/Compliance Order without penalty issued

  10. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 133321 · Arsenic · Arsenic Rule

    Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 17, 2021 · EPA return-to-compliance field June 30, 2021

    9 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274375December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274376June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274363June 28, 2021InformalState Public Notification requested
    274364June 28, 2021InformalState Formal Notice of Violation issued
    274362July 21, 2021InformalState Public Notification received
    274377December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274401March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274427December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274430May 15, 2023ResolvingState Compliance achieved

  11. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 93021 · Arsenic · Arsenic Rule

    Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported June 9, 2021 · EPA return-to-compliance field March 31, 2021

    9 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274360December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274359June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274357April 9, 2021InformalState Public Notification requested
    274358April 9, 2021InformalState Formal Notice of Violation issued
    274361May 10, 2021InformalState Public Notification received
    274374December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274400March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274426December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274429May 15, 2023ResolvingState Compliance achieved

  12. EPA health-based flag · Resolved

    Maximum Contaminant Level Violation, AverageViolation 54121 · Arsenic · Arsenic Rule

    Noncompliance period start October 1, 2020 · period end December 31, 2020 · first reported March 11, 2021 · EPA return-to-compliance field December 31, 2020

    9 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274353December 19, 2019FormalState Administrative/Compliance Order without penalty issued
    274356June 2, 2020FormalState Administrative/Compliance Order without penalty issued
    274354December 16, 2020InformalState Public Notification requested
    274355December 16, 2020InformalState Formal Notice of Violation issued
    274352January 5, 2021InformalState Public Notification received
    274373December 13, 2021FormalState Administrative/Compliance Order without penalty issued
    274399March 28, 2022FormalState Administrative/Compliance Order without penalty issued
    274425December 20, 2022FormalState Administrative/Compliance Order without penalty issued
    274428May 15, 2023ResolvingState Compliance achieved

  13. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 226116 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start July 1, 2016 · period end July 31, 2016 · first reported June 26, 2025 · EPA return-to-compliance field July 31, 2016

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274307August 3, 2016ResolvingState Compliance achieved
    274301October 3, 2016InformalState Public Notification requested
    274302October 3, 2016InformalState Formal Notice of Violation issued
    274305July 17, 2017InformalState Public Notification received

  14. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 226016 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start July 1, 2016 · period end July 31, 2016 · first reported June 26, 2025 · EPA return-to-compliance field July 31, 2016

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    274308August 3, 2016ResolvingState Compliance achieved
    274303October 3, 2016InformalState Public Notification requested
    274304October 3, 2016InformalState Formal Notice of Violation issued
    274306July 17, 2017InformalState Public Notification received

EPA data and scope

How to read the records

The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility