260.242. All fly ash produced by coal combustion generating facilities shall be exempt from all solid waste permitting requirements of this chapter, if such ash is constructively reused or disposed of by a grout technique in any active or inactive noncoal, non-open-pit mining operation located in a city having a population of at least three hundred fifty thousand located in more than one county and is also located in a county of the first class without a charter form of government with a population of greater than one hundred fifty thousand and less than one hundred sixty thousand, provided said ash is not considered hazardous waste under the Missouri hazardous waste law.
(L. 1993 S.B. 80, et al. § 15)
Missouri General Assembly