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The Corley Compan~ III IIIIIIIIIII`II-ItII ~~~ <br />Poone 892-5050 P.0. Boa 1921 Q G~ V <br />COLORA00 SPRINGS COLORADO 80901 1 , D~~ ~ ~ ~~w^ <br />Dec. 15, 1992 y(, <br />M1NE~'S ~ <br />Ms. Catherine W. Begej <br />Division of Minerals and Geology <br />1313 Sherman St. <br />Demver, CO 80203 <br />Dear Ms. Begej: <br />We have had a chance to look over the calculations you sent for the <br />sizing of the 30" culvert in the Westpit. <br />We had originally suggested that the watershed was 300 acres. Since <br />then we have found that the true area is probably over 400 acres. <br />Energy's calculation is based on 450 acres including the Westpit which <br />contributes less than 10 acres. <br />The length of the 30" culvert in situ is 48' with a slope of Sz (2.4` <br />drop). <br />While we believe that these conditions significantly affect the sizing, <br />the main reason that we are writing this letter is that you should have <br />this information in the event that you are called to testify in our <br />suit. <br />Sincerely, <br />~~/'~~ <br />W.D. Corley, Jr. U <br />President <br />