292.35(2)(b) (b) A local governmental unit that owns a portion of the site or facility commits itself, by resolution of its governing body, to paying more than 50 percent of the amount equal to the difference between the cost of investigation and remedial action for the site or facility and any financial assistance received for the site or facility.

292.35(2g)(a) (a) A local governmental unit that intends to use the cost recovery procedures in this section shall attempt to identify all responsible parties. All information obtained by the local governmental unit regarding responsible parties is a public record and may be inspected and copied under s. 19.35.

292.35(2g)(b) (b) Upon the request of an employee or authorized representative of the local governmental unit, or pursuant to a special inspection warrant under s. 66.0119, any person who generated, transported, treated, stored or disposed of a hazardous substance that may have been disposed of or discharged at the site or facility or who is or was an owner or operator shall provide the employee or authorized representative access to any records or documents in that person's custody, possession or control that relate to all of the following:

292.35(2g)(c) (c) The local governmental unit shall maintain a single repository that is readily accessible to the public for all documents related to responsible parties, the investigation, the remedial action and plans for redevelopment of the property.

292.35(2r)(a) (a) The local governmental unit shall, in consultation with the department, prepare a draft remedial action plan.

292.35(2r)(b) (b) Upon completion of the draft remedial action plan, the local governmental unit shall send written notice to all responsible parties identified by the local governmental unit, provide public notice and conduct a public hearing on the draft remedial action plan. The notice to responsible parties shall offer the person receiving the notice an opportunity to provide information regarding the status of that person or any other person as a responsible party, notice and a description of the public hearing and a description of the procedures in this section. At the public hearing, the local governmental unit shall solicit testimony on whether the draft remedial action plan is the least costly method of meeting the standards for remedial action promulgated by the department by rule. The local governmental unit shall accept written comments for at least 30 days after the close of the public hearing.

292.35(2r)(c) (c) Upon the conclusion of the period for written comment, the local governmental unit shall prepare a preliminary remedial action plan, taking into account the written comments and comments received at the public hearing and shall submit the preliminary remedial action plan to the department for approval. The department may approve the preliminary remedial action plan as submitted or require modifications.

292.35(3)(a) (a) Upon receiving the department's approval of the preliminary remedial action plan, the local governmental unit shall serve an offer to settle regarding the contribution of funds for investigation and remedial action at the site or facility on each of the responsible parties identified by the local governmental unit, using the procedure for service of a summons under s. 801.11 and shall notify the department that the offer to settle has been served. The local governmental unit shall include in the offer to settle all of the following information:

292.35(3)(a)4. 4. The location of the public repository where documents relating to the site or facility are maintained, the times during which the repository is open and the name and telephone number of the contact person at the repository.

292.35(3)(b) (b) The department shall maintain a list of competent and disinterested umpires qualified to perform the duties under subs. (4) to (6). None of the umpires may be employees of the department. Upon receiving notice from a local governmental unit under par. (a), the secretary or his or her designee shall select an umpire from the list and inform the local governmental unit and responsible parties of the person selected.

292.35(3)(c) (c) Within 10 days after receiving notice of the umpire selected by the department under par. (b), the local governmental unit may notify the department that the umpire selected is unacceptable. Within 10 days after receiving notice of the umpire selected by the department under par. (b), a responsible party may notify the department that the umpire selected is unacceptable or that the responsible party does not intend to participate in the negotiation. Failure to notify the department that the umpire is unacceptable shall be considered acceptance. If all responsible parties identified by the local governmental unit indicate that they do not intend to participate in the negotiation, the department shall inform the local governmental unit and the local governmental unit shall cease further action under this section.

292.35(3)(d) (d) Upon receiving notice under par. (c) that the selected umpire is unacceptable, the secretary or his or her designee shall select 5 additional umpires from the list and inform the local governmental unit and responsible parties of the persons selected.

292.35(3)(e) (e) Within 10 days after receiving notice of the umpires selected by the department under par. (d), the local governmental unit or a responsible party may notify the department that one or more of the umpires selected are unacceptable. Failure to notify the department shall be considered acceptance. The secretary or his or her designee shall select an umpire from among those umpires not identified as unacceptable by the local governmental unit or a responsible party or, if all umpires are identified as unacceptable, the secretary or his or her designee shall designate a person to be umpire for the negotiation.

292.35(4)(a)(a) The umpire, immediately upon being appointed, shall contact the department, the local governmental unit and the responsible parties that received the offer to settle and shall schedule the negotiating sessions. The umpire shall schedule the first negotiating session no later than 20 days after being appointed. The umpire may meet with all parties to the negotiation, individual parties or groups of parties. The umpire shall facilitate a discussion between the local governmental unit and the responsible parties to attempt to reach an agreement on the design and implementation of the remedial action plan and the contribution of funds by the local governmental unit and responsible parties.

292.35(4)(b) (b) The umpire shall permit the addition to the negotiation, at any time, of any responsible party or any other person who wishes to be a party to the negotiated agreement.

292.35(4)(c) (c) Negotiations may not continue for more than 60 days after the first negotiating session, unless an extension is approved by the department for cause, at the request of any party to the negotiation. The department shall approve an extension if necessary to settle insurance claims.