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Methane Drainage Wells Project Plan <br />Technical Revision 101; Holes 19-09, 19-10 and 19-11 <br />Page 8 of 14 <br />will be supervised by a project representative of Mountain Coal Company, L.L.C. Any <br />significant proposed changes in the project after permit approval would be reviewed with <br />the appropriate regulatory agencies before changes take effect. <br />Staging areas to be used by the drilling contractor will be used in a manner to minimize <br />damage to the vegetation. Any surface disturbance to these sites will be re-graded and <br />seeded to promote rehabilitation. <br />Access routes will be maintained to accommodate full sized 4X4 pickup trucks, ATVs, <br />and required drilling equipment, including but not limited to the following: truck <br />mounted or skid mounted drill rig, air compressors and\or booster, rig-up truck, portable <br />water tanks, boom truck, utility trailer, drill pipe lay-down rack, crew trucks, geophysical <br />logging truck and mobile water carriers. <br />Roads utilized in the project will be maintained with water bars and appropriate <br />sedimentation controls as required during the drilling phase. A D9 bulldozer or its <br />equivalent will be used to prepare the road for travel and assist in mobilizing the drill <br />equipment to the drill sites. Additional equipment expected to be used in opening, <br />maintaining, and reclamation may include arubber-tired backhoe, rubber tired grader, <br />roller compactor and atrack-mounted excavator. <br />Brush removal may occur at the proposed drill sites however, if trees aze encountered, <br />MCC will remove the trees. Drill site pads of approximately 200 ft. x 200 ft. will be <br />constructed to accommodate the drill equipment and drill cuttings sump or mud pits. <br />Drill pads will be constructed only as lazge as necessary. <br />Topsoil will be stripped, stockpiled, and identified with a sign. Stored topsoil will be <br />placed in a separate pile; the pile will be located outside of drainages and placed in an <br />area where it will be protected from wind erosion; signs identifying the pile as "Topsoil" <br />will be placed so as to prevent unintended contamination, compaction or use for other <br />than reclamation purposes; alternate sediment controls (slash, silt fence or straw wattles) <br />will be used; and the pile will be seeded in the first seeding season following its <br />construction using a seed mix that will stabilize erosion. This topsoil will be used in the <br />reclamation phase of the program. <br />Mud pits to accommodate drill cuttings will be constructed with an approximate size of <br />10'W x 20'L x 13'D. These mud pits will be cut into the fill area of the pad if possible. <br />As these incised pits are not completely contained in native soil, a safety factor of 1.3 is <br />required to ensure the stability of the mud pit. A generic geotechnical investigation has <br />been completed by Greystone Environmental Consultants, Inc. to support the design of <br />the mud pits placed in fill azeas of the drilling pad. Slip Circle Failure Analysis, a <br />technique for assessing the stability of slopes and their factor of safety against failure, was <br />used with the GALENA° Slope Analysis software. Such computations serve as a guide to <br />determining minimum setback distances from the erosion escarpment of the drilling pad, <br />which is subject to slipping. This investigation was based on the "worst case" scenario, <br />