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it <br /> TECHNICAL PROPOSAL <br /> CHARACTERIZATION OF SUBSIDENCE OVER <br /> MULTIPLE LIFT LONGWALL PANELS <br /> Prepared by <br /> Mine Subsidence Engineering Company <br /> Donald W . Gentry Collin L . Stewart <br /> 6590 South Ridgeview Drive 60 Clearwater Drive <br /> Morrison, CO 80465 Carbondale, CO 81623 <br /> (303) 697-5592 (303) 963-1936 <br /> ,I <br />