Wis. Stat. § 196.68: Municipal officers, malfeasance.

If any officer of a municipality which owns or operates a public utility does, causes or permits to be done any matter, act or thing prohibited or declared to be unlawful under this chapter or ch. 197 or omits, fails, neglects or refuses to perform any duty which is enjoined upon him or her and which relates directly or indirectly to the enforcement of this chapter and ch. 197, or if the officer omits, fails, neglects or refuses to obey any lawful requirement or order of the commission or any judgment or decree of a court upon its application, for every such violation, failure or refusal the officer shall forfeit not less than $50 nor more than $2,500.