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The pickup trucks will use the access routes on a daily basis. The other equipment <br /> will remain on the site throughout the duration of the program. Actual program <br /> duration is estimated to be four weeks. <br /> Actual disturbance will not exceed one hundred feet in width along each seismic <br /> line. The attached maps depict crossing Fish Creek at several locations; however, the <br /> field activities will maintain at least a one-hundred-foot buffer zone. The line will <br /> cease at this barrier, equipment transported, and continue on the other side. <br /> The seismic field activities will be conducted under the supervision of <br /> Mr. William F. Eldridge, P&M. Mr. Eldridge will be in daily contact with Mr. R. D. <br /> Whitmer, P&M Coal Mining Co., 1720 South Bellaire Street, Denver, Colorado, <br /> (303) 759-6732. <br /> Hydrologic Monitoring Installations <br /> The hydrologic monitoring installations program consists of drilling and casing <br /> bedrock wells, installing alluvial wells and digging backhoe pits along alluvial terraces. <br /> Five locations are planned for bedrock well completion. One location will have <br /> three bedrock wells, two locations will have two bedrock wells and the remaining two <br /> locations will have a single well. Maximum depths of the bedrock wells will be <br /> approximately 1300 feet. <br /> Twelve locations are planned in the Fish Creek, Foidel Creek and Middle Creek <br /> Valleys for shallow (less than 40 feet) drilling and piezometer installation. Test pits <br /> will be dug at four of these locations. <br /> One rig and crew will be involved in the drilling and well completion activities, <br /> consisting of the following: <br /> 1 supervisor <br /> 1 driller <br /> . 2 drilling assistants <br /> 1 truck-mounted rotary drill rig <br /> PR-31-11 -11- <br /> 6/10/83 <br />