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36.21.667    SAMPLING OF FORMATIONS

(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.

History: 36-43-202(3), MCA; IMP, 37-43-202(3), MCA; NEW, 1986 MAR p. 1699, Eff. 10/17/86.

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