Replacement of Service Lines Containing Lead (LSLs)

The Commission is supportive of utilities' efforts to help ensure safe drinking water by replacing infrastructure containing lead, as well as the efforts of municipalities working with their residents to replace customer owned service lines that contain lead.  Replacement of LSLs often requires a collaborative effort involving the utility, municipality, local health department, and homeowners. The DNR has financial resources available for both utility-side and customer-side LSL replacement. There are a number of technical resources designed to help utilities develop effective LSL replacement programs.  They include:

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​Wisconsin Stat. § 196.372

While replacement of most utility-owned infrastructure containing lead, including mains, goosenecks, and service lines generally does not require approval from the Commission, the provision of financial assistance to help customers replace customer-side LSLs does require Commission approval.  See Wis. Stat. § 196.372.  


How to Apply for Financial Assistance Program Approval

Utilities interested in providing financial assistance to customers who replace c​ustomer-side LSLs should provide the information described in the "LSL Application Filing Requirements.”  Upload the completed application and related documents (pdf format) to the PSC Electronic Records Filing (ERF) System using the utility’s PSC identification number.  Please contact RJ Pire at with questions.