Wis. Stat. § 60.52: Sewer and water systems of adjoining municipality.

(1) With the approval of the town board, any city or village adjoining a town may construct and maintain extensions of its sewer or water system in the town. An extension of a sewer or water system under this subsection is subject to s. 62.175 (1) and the rights of abutting property owners.

(2) An abutting property owner who is permitted to connect with and use a sewer or water system constructed under sub. (1) may not be deprived of the use of the sewer or water system, except for nonpayment of water or sewer charges, without the approval of the town board.