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Section 779.14(a) Continued. Rule 2.04.6 <br />(iii) Physical properties of each stratum within the overburden including <br />compaction and erodibility; <br />(iv) Chemical analyses of each stratum within the overburden and the <br />stratum immediately below the lowest coal seam to be mined to identify, <br />at a minimum, those horizons which contain potential acid-forming, toxic- <br />forming, or alkalinity producing materials; and <br />(v) Analyses of the coal seam, including, but not limited to, an analysis <br />of the sulfur, pyrite, and marcasite content. <br />(2) If required by the regulatory authority, test borings or core <br />samplings shall be collected and analyzed to greater depths within the <br />• proposed permit area, or for areas outside the proposed permit area to <br />provide for evaluation of the impact of the proposed activities on the <br />hydrologic balance. <br />(3) An applicant may request that the requirement for a statement of the <br />results of the test borings or core samplings be waived by the regulatory <br />authority. The waiver may be granted only if the regulatory authority <br />makes a written determination that the statement is unnecessary because <br />other equivalent information is accessible to it in a satisfactory form. <br />Characteristics of Coal and Overburden <br />Kerr has utilized geologic data obtained between 1974 and the present to <br />evaluate the physical and chemical characteristics of coal and overburden <br />materials. The majority of this data is the result of extensive <br />exploration drilling, geophysical logging, and laboratory analysis of coal <br />and overburden samples. <br /> <br />779-]4 a <br />R?vi mii - ~nri 1 1 QQn <br />