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<br />t 7.0 Exploration Methods <br />' 7.1 Equipment <br /> One contractor-supplied drilling unit will be sufficient to complete <br /> the drilling program within the scheduled time period. A basic <br /> drilling unit consists of a Gardner Denver 2500 or equivalent air-water <br /> combination drill mounted on a tandem axle truck, drill-pipe, auxiliary <br />' equipment and tools, a water truck and a s upporting pickup truck. <br />' 7.2 Safety and Protection of Environment <br />' All personnel will be instructed in techniques to prevent accidental <br />fires. Portable fire extinguishers will be available in all drill rigs <br />and vehicles. Blow-out preventers should not be necessary since no gas <br />' occurrences were reported during previous drilling programs in the <br />area. <br />' The chosen access routes coupled with proposed reclamation will <br />minimize soil erosion. During the time proposed for drilling, there <br />will be little or no surface water in the area. Mud pits will be dug <br />at each location to receive water that may be produced from each hole. <br />The drill hole plugging procedure will prevent pollution of any ground <br />water intercepted. Damage to air quality, wildlife and wildlife <br />habitat are unlikely due to the proposed limited access and short term <br />' nature of the exploration program. Hazards to public health and safety <br />are essentially non-existent due to the nature of the equipment and the <br />remote location. <br />' 7.3 Drilling Procedures <br />' A Western Fuels geologist will be assigned to the drilling unit and <br />will be on site during all field operations. <br />' Rigs will be leveled without grading a drilling pad,cif"possible. Mud <br />pits will be dug as required. Holes with a 5-1/4 inch diameter-will be <br />drilled with tri-cone bits, using air with mist injection and/or water <br />' and drilling mud as dictated by hole conditions. Cutting samples will <br />be obtained and described. Drilling depths will range from about 860 <br />to 975 feet. Total depth of each hole will be at least 20 meters below <br />' the deepest mineable coal. The estimated depths by hole are shown in <br />Table 8-1 below. <br /> <br /> <br /> <br />