Mich. Comp. Laws § 123.144: Water service in outside territories; enforcement, prerequisites.

Sec. 4.

No contract relating to water service in such outside territory except in cases provided for in section 1 hereof, shall be enforceable against such corporation until the consent of the proper local authorities to the construction and maintenance of water mains in the highways of such territory has been obtained, and the burden of securing such consent shall not be upon such corporation.