36.21.641A CASING DEPTH (1) All wells shall be completely cased to the bottom of the usable drill hole and sealed in accordance with ARM 36.21.654. History: 37-43-202(3), MCA; IMP, 37-43-202(3), MCA; NEW, 1986 MAR p. 1699, Eff. 10/17/86; AMD, 1997 MAR p. 65, Eff. 1/17/97. |