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High yield cottcre[e will be placed in stages to approximately 20 Icet above each water-bearing zone. "fhc high yield mix is formulated l0 flow through the liner perforations, grouting the pea gravel filled annulus of the casing. The depth will be checked with a wireline to document successful placement of each seal. The cement grout will be placed to an elevation of 7253 which is about 20 feet above the highest water bearing zone. The grout will be allowed to set up over night The depth will then be checked with a wireline to document successful completion. Additional cement grout will be placed, if needed, to provide a cement grout seal to twenty feet above the highest water-bearing zone. This will be followed by placement of pit run material to within ten feel of the surlace. 'fhc cement surface foundation of the shaft collar will be removed [o a depth of three feet. Concrete debris from the cement cap and collar will be mixed with the pit-run material as the shag is filled to within ten feet oFthe surface. A cement plug will then be set to within three (3) feet from the surface and allowed to set over night 'fhe remaining opening will be filled as the area is restored to approximate original contour. A Tina! abandonment report will be submitted following shaft closure in accordance with Rule 4.07.3, and that includes a) the calculated volume of the void space to be grouted following placement of tl+e bentunite seal; b) the actual volume of the grout used; c) the depth and interval of the heulonile seal and the final depth and top of the cement plug; and d) the properties of the cemem grout used including types of additives and viscosity of [he mix. After completion of shaft closure, the area of distm~bance will be returned Io approximate original contour, the salvaged topsoil uniformly spread over the surface, then mulched wi(h straw and broadcast seeded with rangeland seed mix at the rate of 25 pounds/acre. Figure 9 details linal contour conlignration ;utd site cross section. h). Reclassification and Transfer of Ventilation Facilities to Industrial llsc. • Methane degasification wells, airshafts, and open boreholes penetrating the underground workings will be reclassified for industrial use. Stroud OiI Company, aka Apache Canyon Gas, LLC will obtain the necessary permits thought the State of Colorado, Oil and Gas Conservation Commission lu develop methane gas production wells al these locations. XTO Energy Inc., the current owner of Apache Canyon Gas, plans to develop additional Coal 13ed Methane (CBM) recovery wells and a compressor station south of Apache Canyon. 'this activity will require improving the road through Apache Canyon. 'I~his road will pass through and impact the reclamation activities a[ the Apache Canyon airshafts as shown on Map 3-C Apache Canyon North Airshafl and Map 3-D Apache Canyon South Airshafl. Refer to a letter from XTO Energy dated February 16, 2005 (Exhibit 32, Page 32-1). The post-mining land use classification of these areas will be reclassified as Industrial Use because of these Cl3M activities. "fhe State of Colorado, under the management of the Division of Wildlife, is the surface owner of these sites in Apache Canyon. The DOW was notified by Basin Resources of this action by letter dated February 2R, 211(15 (Exhibit 32, Page 32-2). "fhe DOW response indicated no comments or concerns with this action by letter dated May 18, 20(15 (Rshibil 32, Page 32-3). Reclmnation of these reclassified facilities will be in accordance with the Uil and Gas Conservation Commission regulations. Reclamation bonding for These facilities will be filed with the Oil and Gas Conservation Commission. When the appropriate bonds have been filed, and adequate proof of bonding submitted to the Division of Minerals and Gcolugy, Basin Resources will rcyucst bond release fi+r these facilities, and will only be responsible lur these facilities to the extent required by Kole 4.15, I (1(2). 'T'hese facilities are also listed in Cxhibit 19 Page 19-I Bonding Schedule G+r TR-45, lixhibit 19 Page 19-7 [3onding Requirement for Apache Canyon Airshalls "CR-5(, and in Exhibit 31, Industrial baud IJse Classification and Methane Gas Production Schedule, and Maps 'fR-45-I through 5. L 56 TIZ-~ 2.05-29 (Revised 5/26/(15)