Wis. Stat. § 62.155: Acquisition of facilities without bids.

A city may contract for the acquisition of any element of the following without submitting the contract for bids as required under s. 62.15 if the city invites developers to submit proposals to provide a completed project and evaluates proposals according to site, cost, design and the developers’ experience in other similar projects:

(1) A recycling or resource recovery facility.

(2) If the city contains an electronics and information technology manufacturing zone that is designated under s. 238.396 (1m):

(a) Water and sewer systems.

(b) Wastewater treatment facilities.