640.423. The department shall determine when the level of acontaminant or contaminants in a special water quality protectionarea does not exceed, and are not likely to exceed, the waterquality standards established pursuant to sections 640.400 to640.435 and this chapter and chapter 644, RSMo. Upon suchdetermination, the designation of an area as a special waterquality protection area pursuant to section 192.300, RSMo,sections 640.100, 640.120, and 640.400 to 640.435 shall beremoved.
(L. 1989 S.B. 112, et al. ยง 9)