Mich. Comp. Laws § 41.342

Sec. 12. As used in sections 1 to 20a: (a) "Township water supply district" means the portion of the township described in the petition required by section 1. (b) "Private connection" means the tapping of a main and the connection of the main with a nonpublic building or premises as distinguished from a connection with a public building or premises and from an extension of such a main, lateral or otherwise, that the township board, in accordance with altered or amended rules and regulations, authorizes in and along a public highway. (c) "Corporation" includes foreign and domestic corporations lawfully doing business in this state.