Mich. Comp. Laws § 324.30721: Establishment of normal inland lake level prohibited in certain cases.

Sec. 30721.

A normal level shall not be established for an inland lake in either of the following cases:

The inland lake is used as a reservoir for a municipal water supply system, unless a normal level determination is petitioned for by the governing body of the municipality.

The state has title, flowage rights, or easements to all riparian land surrounding the inland lake, unless a normal level determination is petitioned for by the department.