(1) The contractor shall secure representative samples of all materials encountered in the formations drilled in the well. These samples shall be taken as required by the following:
- (a) one sample at the beginning of each change in material encountered; and
- (b) samples should be taken in the water-bearing aquifer(s) .
- (2) Sampling methods used shall assure securing the required representative sample. Care shall be taken to accurately determine the depth of the material sampled.
- (3) Materials encountered during the sampling shall be so indicated on the well log report form.
Authorizing statute(s): 36-43-202(3), MCA
Implementing statute(s): 37-43-202(3), MCA
History: NEW, 1986 MAR p. 1699, Eff. 10/17/86.