a. No person shall contract to sell any land which has been utilized as a sanitary landfill facility at any time prior to the effective date of this supplementary act unless the contract of sale for the land shall state the fact and the period of time that the land was so utilized.
Any prospective purchaser of such land may obtain from the department, upon written request therefor, a history of the compliance by the facility with all applicable statutes, rules and regulations administered by the department.
b. Any contract made in violation of this section is voidable.