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_,. <br /> <br />• <br />• <br />.. _ ~te\ 4C.- <br />4~c'(i~;oln D Vore <br />Testing Laboratory, Inc. <br />1000 West Fillmore St. <br />- Colorado Springs, Colorado 80907 <br />- ~ --(303) 6323593 <br />Home Office <br />April 3, 1985 <br />Wyoming Fuel Company <br />445 Union Blvd. #310 <br />Lakewood, CO 80228 <br />Attn: Mr. Mike Kolin <br />Subject: Testing of Proposed Rip-rap Material, <br />New Elk Mine Site <br />Gentlemen; <br />As requested, we are presenting herein the results of laboratory <br />tests performed on potential rip-rap material. Three samples <br />were delivered to our office by personnel of Wyoming Fuel <br />Company. Sandstone and siltstone from the RDA quarry was deli- <br />vered on February 11 and 14, 1985; sandstone from the Pete Hill <br />quarry was delivered on February 14, 1985; and sandstone and <br />siltstone from an unknown source was delivered on March 2, 1985. <br />Test results are attached. <br />If you should have any questions regarding our testing, please <br />contact us at your convenience. We appreciate this opportunity <br />to be of professional service. <br />Respectfully submitted, <br />LINCOLN-DeVORE TESTING LAB., INC. <br />~'~ ~ ~~.r~.T <br />By: Anthony F. elfast, P.E. <br />Geotechnical Engineer <br />AFB/krj <br />LD Job No. 55273 <br />Colorodo Springs, Colorado Pueblo, Colorado Grand Junction, Colorado Glenwood Spri nef, Colorado <br />