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Lead service line replacement progress

Lead service line replacement progress

Michigan's drinking water regulations require public water supplies to replace all lead and galvanized previously connected to lead (GPCL) service lines at the water supply's expense. Starting in January 2021, community water supplies with lead or GPCL service lines are required to replace these service lines within 20 years and submit an annual service line replacement report (ASLRR) to EGLE. The data on this page was compiled using ASLRRs submitted since 2021.

Number of lead and GPCL service lines replaced in Michigan from 2021 to 2025

Total number of lead/GPCL service lines replaced in the state of Michigan from 2021 to 2025 is 98,253.

  • Year 2021 (10,316), Year 2022 (16,392), Year 2023 (18,692), Year 2024 (24,521)

    dark blue square icon Year 2021 (10,316)

    orange square Year 2022 (16,392)

    yellow square Year 2023 (18,692)

    green square Year 2024 (24,521)

    purple square Year 2025 (28,332)

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General data information

  • Data is submitted as a total of lead and GPCL service lines replaced in a year.
  • The service line replacement data is from community water supplies that reported performing at least one lead or GPCL service line replacement since 2021.
  • Data will be updated periodically.
  • The data is subject to change for the following reasons:
    • EGLE may request clarifications and or/revisions from water supplies which could result in the submission of updated numbers.
    • Water supplies may submit updated data as it becomes available.
    • ASLRRs may be past due. These reports will be reflected in future updates.