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§2.05 APPLICATION FOR PERMIT FOR SURFACE OR UNDERGROUND MINING <br />ACTIVITIES -- MINIMUM REQUIREMENTS FOR OPERATION AND RECLAMATION <br />PLANS. <br />2.05.6 Mitigation of Surface Coal Mining Operation Impacts. (Cont'd.) <br />(6) (a) (i) See Section (6)(a)(ii). <br />In 2010, as part of PR -4, Bowie No. 1 will transfer 2,3 79 acres from their permit boundary to the <br />Bowie No. 2 mine. In addition, Bowie No. 1 agrees that a portion of three Federal Coal Leases <br />will be transferred to the Bowie No.2 Mine. This additional permit area and the Federal Coal <br />Leases will be incorporated into the Bowie No. 2 permit, and will encompass some of the old <br />workings developed from the Bowie No. 1 mine. The Bowie No. 2 Mine has agreed to assume <br />any and all of the liability associated with the old workings that are encompassed by the Bowie <br />No. 2 Mine permit boundary. For subsidence protection details associated with the permit <br />transfer, please see Volume 1, section 2.05.6(6) of the Bowie No. 2 permit. <br />In 2015, as part of PR -05, Bowie No. 1 reduced its permit boundary another 400 acres in order <br />to align with and not overlap the Bowie No. 2 Mine permit boundary. <br />(ii) No answer required. <br />(A) Through the services of an independent consultant, Geo -Hydro Consulting, Inc., the <br />Operator has prepared a study which addresses the predicted nature and <br />characteristics of subsidence induced phenomena within the permit area (refer to <br />Subsidence Appendix, Volume 3). The study contains an inventory of natural resources <br />and anthropogenic structures. The study also addresses the impacts of underground <br />mining and attendant surface subsidence upon the structures and resources identified. <br />Within the permit area there are three deposits of colluvial/alluvial material, which <br />because of size, hydrological conditions, and development are considered Renewable <br />Resource Lands under Division Rule 1.04(110). These areas are located as follows: <br />Stevens Gulch, portions of Sections 12 and 13, T.13S., R.92W.; East Roatcap Creek, <br />portions of Sections 14 and 15, T.13S., R.92W.; and Morrell Cow Camp, portions of <br />Section 1, T.13S., R.91 W. Hydrogeologic characteristics of the most significant area, <br />Stevens Gulch, follows. <br />Results of drilling and testing in five wells indicated that these deposits are composed of <br />a mixture of gravel and clayey sand with a thickness of up to 97 ft. and a low <br />permeability. The range of transmissivity resulting from tests in well Nos. SG -a, SG -b, <br />and SG -1 is 140 - 235 square ft/day. Storage coefficient ranged from 3 x 10-4 and <br />4 x 1-3. The water table in the aquifer has a great range of <br />TR -60 2.05-136 12/2015 <br />