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1. A detailed geologic map of the area proposed to be permitted is needed which delineates alI coal outcrop Lines, faulting in the permit area with the approximate amount of displacement, and major fracture zones, especially those cutting the major sandstone units (2.04.6[2](a](iiiJ). 2. A detailed stratigraphic section from the surface down to the aquifer below the lowest coal seam to be mined must be submitted. This section should include all coal seams and all aquifers as manifested in the permit area. (2.04.6 (2J(a](iv]), 3. The applicant must provide all lithologic logs used in compiling the cross-sections in Drawing III-l. A discrepancy exists as to the elevation of the "Middle"Sandstone above the F seam. In the cross- section it is shown to be 200' above the F seam, but in the technical review of subsidence it is said to be within 50'. The applicant should clarify this discrepancy. Additionally, the elevations where water was encountered must be indicated on each Zithologic log. 9. Conventionally, geological sampling of rock units (i.e., roof, floor, interburden and coal) for physical and chemical charateristics have been conducted on a minimum of one core per square mile of affected area to determine variance and distribution of toxic, acid or alkaline forming substances. The data supplied bu Empire Energy is insufficient to analyze the variability of toxic or alkaline producing substances within the permit area due to the size of the proposed permit area and complex geology. Additional analyses need to be run on roof, floor, interburden and coal samples for each seam to be mined. These samples should be obtained from cores spaced at one core per square mile and should be analyzed according to the list provided in Attachment A. (2.04.6 [2J[a](iv](C&D]) In some cases, given local environmental conditions, not all of the parameters Listed on Attachment A will be required. Should the applicant feel that adequate information has been obtained from on-site data collection or another substantiated source to indicate that a parameter or parameters do not warrant testing, then a thorough analytical discussion related directly to the specific characteristics of the mine should be included in the application. 5. The sulfur analysis of coal is incomplete, In addition to total sulfur, the Division requires per cent pyritic sulfur, per cent organic sulfur and per cent sulfate sulfur. These compounds are a concern because they are potentially acid and alkaline forming materials (2.09.6[2][aJ). 2.09.7 Hydrology Description (1) Groundwater Information, 1. Five aquifers are mentioned in the permit application; t17e Tampa River Alluvium, the Williams Fork Alluvium, the "Middle" Sandstone, the Twenty Mile Sandstone and t/~e Trout Creek Sandstone. Only one of the aquifers, the [dilliams Fork Alluvium, has adequate monitoring wells located in the aquifer to access the baseline hydroloyic conditions and the affects of mining on the hydrologic balance of this aquifer.