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d <br />0 <br />March 19, 2002 <br />Lorencito Coal Company, LLC <br />c/o Greystone <br />5231 South Quebec <br />Greenwood Village, Colorado 80111 <br />Attention: Mr. Mike Kolin <br />Mr. Jerry Koblitz <br />Subject: Fill Areas 5 and 8 <br />Revised Configuration <br />Lorencito Surface Mine, Phase 1 <br />Las Animas County, Colorado <br />Job No. 32,611 C c~~,_ d~~ <br />RECEIVED <br />MAR 2 } 2002 <br />pivision of Minerals and Geolo9Y <br />We have reviewed the revised configuration of Fills 5 and 8 (Figures 2.05.4- <br />14h and 2.05.4-14k, by Greystone). We believe the revised spoil fills are within the <br />scope of our previous investigation (report dated April 27, 2000). The proposed fill <br />is judged stable and meets or exceeds Colorado Division of Minerals and Geology <br />(CDMG) requirements for excess spoil fills. We have attached a revised Fig. 1 <br />showing the revised Fills 5 and 8 locations. <br />It has been our pleasure to serve you on this project. If we can clarify our <br />opinions or be of further service,_please call. <br />REGlST <br />CTL/THyO~MP ON, INC. ,~ G;'G,~,F~m <br />/~i~~~ vO.~Q' 9~: o <br />Mar)yG. Gray, P.1 <br />Project Manager <br />MGG/ha <br />(5 copies sent) <br />attachment <br />E~~ <br />CTL/THOMPSON, INC. <br />CONSULTING ENGINEERS <br />1977 WEST 12TH AVENUE ~ DENVER, COLORADO 80204 ~ (303) 825-0777 <br />