Wis. Stat. § 823.02: Injunction against public nuisance, time extension.

An action to enjoin a public nuisance may be commenced and prosecuted in the name of the state, either by the attorney general on information obtained by the department of justice, or upon the relation of a private individual, sewerage commission created under ss. 200.01 to 200.15 or a county, having first obtained leave therefor from the court. An action to enjoin a public nuisance may be commenced and prosecuted by a city, village, town or a metropolitan sewerage district created under ss. 200.21 to 200.65 in the name of the municipality or metropolitan sewerage district, and it is not necessary to obtain leave from the court to commence or prosecute the action. The same rule as to liability for costs shall govern as in other actions brought by the state. No stay of any order or judgment enjoining or abating, in any action under this section, may be had unless the appeal is taken within 5 days after notice of entry of the judgment or order or service of the injunction. Upon appeal and stay, the return to the court of appeals or supreme court shall be made immediately.