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(1) Whenever the department must investigate possible environmental damage or complaints which may occur as a direct result of prospecting activities, the prospector shall furnish sufficient information to the department to facilitate such investigation. Such information must include, but is not limited to, stratigraphic findings, geophysical and lithological logs, construction details (for example, on roads and environmental monitoring sites), and related data.

(2) A monthly report must be submitted for each successive 30-day period no later than the 15th of the following month, provided, however, that monthly reports need not be submitted for 30-day periods of inactivity. Reports must include, but are not limited to, the following information:

(a) the legal description (to nearest ten acres) of each bore and core hole drilled, and drill hole identification numbers;

(b) updated maps showing bore and core hole locations and identification numbers, as well as drill hole additions, deletions or relocations;

(c) the date each hole was drilled, logged, and abandoned;

(d) total depth and diameter of each hole drilled;

(e) trade name and amount of abandonment material used on each drilled hole;

(f) results of additional mud, cement, concrete or other grout tests required by the department (i.e., gel strength, fluid loss or water-chemical analyses, etc.) completed for each hole drilled and abandoned or converted to a well;

(g) depths of all encountered water-bearing zones for each hole drilled, including all artesian conditions;

(h) depth of all lost circulation zones;

(i) a detailed report of all prospecting holes converted to water or monitor wells including:

(i) water-bearing zone developed (depth, formation name, lithology);

(ii) type of material used to case, grout, seal and cap each well;

(iii) casing diameter; and

(iv) anticipated plans for the well;

(j) description of any activity that substantially disturbs land or water resources pursuant to ARM 17.24.301(120);

(k) mapped location of any surface disturbance such as road, disposal pit, or mud pit construction;

(l) mapped location and description of areas seeded or otherwise reclaimed; and

(m) anticipated location of activity in next reporting period.

(3) Annual reports must be filed in accordance with 82-4-226(6) and 82-4-237, MCA, and must include the information required under (2) for all activities conducted during the report year.

History: 82-4-205, MCA; IMP, 82-4-226, MCA; NEW, 1980 MAR p. 725, Eff. 4/1/80; AMD, 1989 MAR p. 30, Eff. 1/13/89; AMD, 1995 MAR p. 31, Eff. 1/13/95; TRANS, from DSL, 1996 MAR p. 3042; AMD, 1999 MAR p. 811, Eff. 4/23/99; AMD, 2004 MAR p. 2548, Eff. 10/22/04; AMD, 2012 MAR p. 737, Eff. 4/13/12; AMD, 2024 MAR p. 258, Eff. 2/10/24.

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