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2.02 -2 <br />TR-21 Revised: 2/17/2021 <br />will depend on the drill site. The amount of disturbance at each drill site will be kept to a <br />minimum. A pit for the collection of drill cuttings and fluids will be excavated with a backhoe at <br />each location. The pit will be approximately 8 ft by 40 ft by 6 ft deep. The pit will be pumped on <br />a regular basis and all fluids transported to a disposal site at the New Elk Mine. The pit will be <br />backfilled upon completion of the drilling activity. Present plans call for one pit per drill site. <br />Drill location estimated acreage of disturbance for road and site construction is shown below. <br /> <br />Hole no. <br />Estimated <br />Site Area (sf) <br />Estimated <br />New Road (ft) <br />Estimated <br />Site (Acres) <br />Estimated New <br />Road (Acres) <br />Estimated total <br />Disturbance (Acres) <br />LC -17-20 3,600 30 0.083 0.001 0.083 <br /> <br />The irregular terrain precludes making an accurate estimate of the amount of material to be <br />disturbed. Each pad is estimated to disturb 3,600 square feet. <br /> <br />Approximately 30 foot of light use road will be necessary to access the site. The location is <br />located right of an active road in the Lorencito Permit Area. The road details are explained in <br />detail in Section 2.05.3 (c). <br /> <br />Drilling activities will include rotary and core drilling. The hole diameter will be 5 inches while <br />rotary drilling and a 3 inch diameter core when coring. Drilling fluids include air and water with <br />a mist foaming agent and drilling mud if necessary. All chemicals used will be biodegradable so <br />as not to adversely impact the surrounding area or any groundwater which may be encountered. <br /> <br />Topsoil will be salvaged from the drill sites prior to their construction. Salvaging will include <br />removing the top 12 inches of soil or the amount available and stockpiling this material in the <br />general vicinity of its removal in an area where it will not be removed from the drill site area. <br />Stockpiles of topsoil will be compacted to prevent erosion by wind and other elements until used <br />for reclamation. Topsoi l at each drill pad will be stored on the upslope side of the drill pad when <br />safe and practicable to do so to minimize risk of erosion. Reclamation of the site will be <br />completed after the complete of the drilling and abonnement of the hole. <br /> <br />The pre-mine land use is shown on Map 2.04.3-1 covering the entire Permit Area. The soil for <br />the Permit Area is shown on Map 2.04.9-2. The vegetation survey for the Permit Area is shown <br />on Map 2.04.10-1. Revegetation for the drill sites will be consistent with practices the have been <br />completed with the mine site described in the Revegetation Plan in Section 2.05 of this Permit <br />Application Package. <br />The hole will not be developed as a monitoring well. <br /> <br />