Rule 17.38.203 - MAXIMUM INORGANIC CHEMICAL CONTAMINANT LEVELS(1) The department adopts and incorporates by reference: (a)40 CFR 141.6(j) and 141.6(k), which set forth effective dates associated with a revised maximum contaminant level for arsenic;(b)40 CFR 141.11 and 141.62(b), which set forth maximum contaminant levels for inorganic contaminants;(c)40 CFR 141.65, which sets forth maximum residual disinfectant levels; and(d)40 CFR 141.80(c), which sets forth the action levels for lead and copper.Mont. Admin. r. 17.38.203
NEW, 1977 MAR p. 1187, Eff. 12/24/77; AMD, 1982 MAR p. 594, Eff. 3/26/82; AMD, 1991 MAR p. 1492, Eff. 8/16/91; AMD, 1994 MAR p. 2131, Eff. 8/12/94; TRANS, from DHES, 1996 MAR p. 1499; AMD, 2000 MAR p. 3400, Eff. 12/8/00; AMD, 2003 MAR p. 1279, Eff. 6/27/03; AMD, 2004 MAR p. 3016, Eff. 1/1/05; AMD, 2008 MAR p. 2625, Eff. 12/25/08; AMD, 2010 MAR p. 1798, Eff. 8/13/10; AMD, 2024 MAR p. 253, Eff. 2/10/2024AUTH: 75-6-104, MCA; IMP: 75-6-104, MCA