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NR 809 safe drinking water standards update

The state's safe drinking water code ch. NR 809 Wis. Adm. Code will be revised to include federal PFAS maximum contaminant levels (MCLs), technical edits and updates to lead and copper.

As information about these rule updates becomes available, it will be posted. Please check back frequently.

A rulemaking timeline, procedures, stakeholder meetings and additional information about each of these updates can be found on the following pages:

Federal PFAS MCLS

Technical Edits

Lead & Copper

NR 809 Revisions

On Aug. 1, 2022, NR 809 was revised to include standards for two new compounds in the perfluoroalkyl and polyfluoroalkyl substances (PFAS) group.

2022 PFAS MCLS