Mich. Comp. Laws § 560.116: Preliminary plat; department of environmental quality's approval or rejection.

Sec. 116.

(1) The proprietor shall submit 2 copies of the preliminary plat to the department of environmental quality for information purposes, if the land proposed to be subdivided abuts a lake or stream or abuts an existing or proposed channel or lagoon affording access to a lake or stream where public rights may be affected.

(2) The department, within 30 days after receipt of the preliminary plat, shall place the proprietor, the governing body of the municipality, and the county plat board on notice in writing if it has any objections or may furnish such information to each as may be helpful or necessary in its opinion to adequately plan the development and secure approval of the final plat.

(3) Copies of the letters required under subsection (2) shall be sent to the department of labor and economic growth.