(1) The owner or operator of a one-time landfarm facility shall meet the following siting requirements. Treatment cells must be located:
- (a) more than 1,000 feet from domestic water wells;
- (b) more than 500 feet from any residential property boundary; and
- (c) at least 150 feet from the high water mark of surface water, including an intermittent drainage and floodplain; and
- (d) with at least 25 feet of vertical separation between the base of the treatment zone and the seasonally high water level of the uppermost aquifer beneath the facility.
- (2) A one-time landfarm facility may not be constructed at a site where the depth to the uppermost aquifer's seasonally high water level is less than or equal to 25 feet without prior written approval by the department.
Authorizing statute(s): 75-10-204, MCA
Implementing statute(s): 75-10-204, MCA
History: NEW, 2017 MAR p. 666, Eff. 3/11/17.