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~Y~~ora~-~o~ Rec,la.~ <br />• COLORADO - SENECA II-W/YOAST MONITOR WELL PROJECT <br />EXPLORATION AND RECLAMATION PLAN <br />Description of Area to Be Explored <br />Exhibit "A" and Exhibit "C" <br />Commencement and Duration of Drilli <br />The drilling will start in June, 1990 and it is anticipated that drilling will be <br />completed by the end of December, 1990. <br />Method of Exploration and Equipment to be Used <br />Exploration will consist of rotary drilling and auger drilling. The equipment used will <br />be one Mayhew 1000-1250 rotary drill and one hollow stem auger drill. It is anticipated <br />that most of the locations can be drilled by air from an air compressor mounted on the <br />drill rig being used. However, if water is used, one 1,000-gallon water truck will be <br />parked in the field area. Other equipment in the field will include four-wheel drive <br />• pickups and one geophysical logging truck. <br />There will be a total of 20 water monitor well locations to be completed at depths ranging <br />from 30 feet to 300 feet. The diameter of each hole will range from 6 inches to 12 <br />inches. See Figure 1 for generalized well completion. <br />Li ght-Use Roads, Seed Mixtures <br />Approximately .9 miles of light use roads will be constructed in accordance with 4.03.2 <br />and/or 4.03.3, regulations of the Colorado Mined Land Reclamation Board for Coal Mining. <br />Side cast construction will be used, with topsoil placed on the upward slope. Any <br />ea rthmoving will be kept to a minimum, and if possible, blade work will only clear brush <br />with one or two inches of soil displaced. <br />Any drainage structures required shall not affect normal flow or affect fish migration or <br />aquatic habitat and related environmental values. Drainage culverts will be installed <br />where required on streams. <br />• Road maintenance shall ensure minimization of erosion. <br />1 <br />