1. The commission shall promulgate and adopt such initial rules and regulations, effective no later than July 1, 2007, as shall be necessary to carry out the purposes and provisions of sections 260.900 to 260.960. Prior to the promulgation of such rules, the commission shall meet with representatives of the dry-cleaning industry and other interested parties. The commission, thereafter, shall promulgate and adopt additional rules and regulations or change existing rules and regulations when necessary to carry out the purposes and provisions of sections 260.900 to 260.960.

2. Any rule or regulation adopted pursuant to sections 260.900 to 260.960 shall be reasonably necessary to protect human health, to preserve, protect and maintain the water and other natural resources of this state and to provide for prompt corrective action of releases from dry-cleaning facilities. Consistent with these purposes, the commission shall adopt rules and regulations, effective no later than July 1, 2007:

(1) Establishing requirements that owners who close dry-cleaning facilities remove dry-cleaning solvents and wastes from such facilities in order to prevent any future releases;

(2) Establishing criteria to prioritize the expenditure of funds from the dry-cleaning environmental response trust fund. The criteria shall include consideration of:

(a) The benefit to be derived from corrective action compared to the cost of conducting such corrective action;

(b) The degree to which human health and the environment are actually affected by exposure to contamination;

(c) The present and future use of an affected aquifer or surface water;

(d) The effect that interim or immediate remedial measures will have on future costs; and

(e) Such additional factors as the commission considers relevant;

(3) Establishing criteria under which a determination may be made by the department of the level at which corrective action shall be deemed completed. Criteria for determining completion of corrective action shall be based on the factors set forth in subdivision (2) of this subsection and:

(a) Individual site characteristics including natural remediation processes;

(b) Applicable state water quality standards;

(c) Whether deviation from state water quality standards or from established criteria is appropriate, based on the degree to which the desired remediation level is achievable and may be reasonably and cost effectively implemented, subject to the limitation that where a state water quality standard is applicable, a deviation may not result in the application of standards more stringent than that standard; and

(d) Such additional factors as the commission considers relevant.