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King Coal Mine (C-1981-035) TR -26 Adequacy Review #1DRMS <br />A. Rule 2.04.7 (1)(a)(i) Hydrolo2y Description: Groundwater Information <br />The monitoring wells proposed in this technical revision (TR 26) are put forward in order to provide <br />results describing the ground water hydrology, and include determining the depth below the surface that <br />groundwater exists and the horizontal extent of the potentiometric surface of any aquifer that may exist <br />between the Menefee "A" coal seam and the deeper Menefee "B" coal seam. These monitoring wells are <br />also meant to provide data answering the question of whether or not the Cliffhouse Sandstone produces <br />water. <br />DRMS has concerns regarding the King II Mine Cliffhouse monitoring well design as shown in <br />Appendix 4(5). The four (4) borings are not designed as monitoring wells, and are proposed to be left as <br />open holes with a three foot bentonite seal placed in the bottom of each hole. <br />1. DRMS Nov 2015: Review of the "A" Coal Seam and Menefee interburden monitoring well <br />designs are adequate. <br />2. DRMS Nov 2015: Please revise the monitoring well design specifications in Appendix 4(5) to <br />include well construction designs as opposed to open boreholes for at least two of the four <br />Cliffhouse monitoring well locations. These shall be located with one up gradient and one <br />downgradient of the mining area. The revised designs should include an updated well <br />completion diagram and revised specifications table. <br />B. Rule 2.04.9 Soil Resource Information <br />For areas slated for disturbance, this rule requires submission of adequate soils information that includes <br />information describing the soil horizons that include soil sampling and analysis results to determine the <br />horizons suitability for salvage. Also required are a soils map portraying sampling locations and <br />proposed salvage horizons. It is difficult to ascertain which soil series Cluster MW -2 falls in given the <br />quality of the Coal Lease Map submitted with TR26. <br />3. DRMS Nov 2015: The soils resources information contained in the King II Mine permit section <br />2.04.9 does not cover all the disturbed areas for the proposed monitoring well Clusters MW -1, <br />MW -3 and MW -4. <br />DRMS Nov 2015: Please provide the information required by Rule 2.04.9 — Soil Resource <br />Information, for the proposed disturbed area of the monitoring wells clusters. <br />The proposed revised pages indicates that a "natural resource survey" of the proposed drill sites will be <br />conducted and the results will be located in Appendix 8(6). This appendix does not appear to be <br />included with the TR26 submittal. <br />DRMS Nov 2015: Please submit to DRMS Appendix 8(6) upon completion of the Natural Resource <br />Survey. <br />C. Rule 2.05.4(2)(c) and (d) Reclamation Plan <br />This section of the reclamation rule requires a plan for backfilling, grading and soil stabilization <br />associated with road modifications as per Rule 4.03. <br />Prepared by: R. Reilley November 2015 <br />File location: M:\Coal\rar\1MKingCoal\TR26 Page 2 <br />