Mont. Admin. r. 17.30.638Download PDFCurrent through Register Vol. 21, November 2, 2024Rule 17.30.638 - OUTSTANDING RESOURCE WATERS - PROHIBITIONS(1) Any new or increased point source discharge that would result in a permanent change in water quality is prohibited.Mont. Admin. r. 17.30.638NEW, 2006 MAR p. 528, Eff. 2/24/06.75-5-301, 75-5-316, MCA; IMP, 75-5-316, MCA;