Wis. Stat. § 60.52
A city or village sewer extension through town lands that does not provide service for town residents does not require approval of the town board under sub. (1). Danielson v. City of Sun Prairie, 2000 WI App 227, 239 Wis. 2d 178, 619 N.W.2d 108, 99-2719. In determining under whether the extension through a town serves the town and thus requires the town's approval, the extension project must be looked at as a whole, and not in its component parts. Town of Union v. City of Eau Claire, 2003 WI App 161, 265 Wis. 2d 879, 667 N.W.2d 810, 02-3393.