Rule Promulgation

New rules promulgated or proposed for public water supplies update the provisions of the Michigan Safe Drinking Water Act.  New rules are promulgated under authority conferred on the Director of the DEQ by Section 5 of the Safe Drinking Water Act, 1976 PA 399, as amended (Act 399), identified as R 325.10101 through R 325.12820. Modified and new rules are published on the Office of Regulatory Reinvention’s website.

• Your Rights and the Rulemaking Process
• Rulemaking Process Summary (PDF) 
• ​Michigan Safe Drinking Water Act 399 
• Michigan Safe Drinking Water Rules - Supplying Water to the Public

Current Rules Projects

2019-035 EG

Supplying Water to the Public 

To establish enforceable drinking water standards for per- and polyfluoroalkyl substances (PFAS) found during the 2018 sampling of Michigan’s public drinking water supplies. While the U.S. Environmental Protection Agency has established an unenforceable lifetime health advisory level for total perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), many academia, health officials, and the Agency for Toxic Substances and Disease Registry (ASTDR) deem this advisory level is too high. In addition, the lack of an enforceable standard for PFOS and PFOA and other commonly found PFAS chemicals impairs the DEQ’s ability to take enforceable actions to protect human health and the environment.

Rule Promulgation Timeline

1. Formal request for rulemaking submitted to the Office of Regulatory Reinvention (ORR): 3/26/2019
2. Stakeholder Process:
3. Public Information Session:
4. Draft rules and Regulatory Impact Statement filed with the Office of Regulatory Reform: 
5. Public Comment Period: 
6. Public Hearing: 
7. Final rules filed with the ORR