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. (a) The description shall include a general statement of the <br />geology (stratigraphy and structure) within the proposed area to be <br />affected over the life of the operation down to and including the first <br />aquifer and other coal seams, if any, below the lowest coal seam to be <br />mined. A geologic map with geologic cross-sections of the permit area, <br />prepared in accordance with 2.10, should accompany the descriptions and <br />include the following: <br />(i) Nature, depth, and thickness of the coal seams to be <br />mined, any coal or rider seams above the seam to be mined, each stratum of <br />the overburden, and the stratum immediately below the lowest coal seam to <br />be mined; <br />(ii) The proposed permit area, including coal crop lines <br />and the strike and dip of the coal to be mined; <br />(b) (i) Test borings or core samples from the proposed permit <br />• area shall be collected and analyzed down to and including the stratum <br />immediately below the lowest coal seam to be mined in order to provide the <br />following data in the description: <br />(A) Location of subsurface water zones, if <br />encountered; <br />(B) Logs of drill holes showing the lithologic <br />characteristics and thickness of each stratum and each coal seam; <br />(C) Physical properties of each stratum within the <br />overburden and interburden including texture, overall swell, and other <br />information sufficient to determine compactibility, erodibility and an <br />overall estimate of overburden and interburden swell. <br />(D) Chemical analysis of each stratum within the <br />overburden and interburden and the stratum immediately below the lowest <br />coal seam to be mined to identify, at a minimum, those horizons which <br />contain potential acid-forming, toxic-forming, or alkalinity-producing <br />materials; and <br />• <br />2.04-14 <br />