- (1) A means to measure the reservoir water level to within one-tenth of a foot is required for all dams. The measurement must be correlated with the capacity of the reservoir.
- (2) Any dam that exceeds 50 feet in height must have a sufficient number of piezometers adequately monitoring the piezometric surface within the dam to identify unusual changes in seepage characteristics of the dam.
- (3) All dams must have an adequate seepage monitoring and collection system.
- (4) The department shall specify any other necessary instrumentation in the permit based upon the design being implemented and the information acquired during an investigation.
Authorizing statute(s): 85-15-110, MCA
Implementing statute(s): 85-15-210, 85-15-213, MCA
History: NEW, 1988 MAR p. 2489, Eff. 11/24/88.