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Golden Eagle Mine <br />Trinidad, Colorado <br />December 16, 1988 <br />Page -2- <br />performed to substantiate our field technician's observations as <br />to the quality of fill placed. <br />Determinations of horizontal and vertial limits of work were made <br />by others. Our firm does not guarantee earthwork construction, <br />nor should our work or this letter be construed as releasing the <br />contractor of his primary responsibility to conform with the <br />construction plans and specifications. Lincoln DeVOre warrants <br />only that our work was performed in accordance with the current <br />acceptable standards of practice. <br />CONCLUSIONS <br />It is our opinion that the structural fill placed which we <br />observed and tested during the period of this report has been <br />placed in substantial conformance with the project specifica- <br />tions. The minimum compaction specification was met, and <br />generally was significantly exceeded in the majority of the areas <br />tested. Because of the time of year in which the work was per- <br />formed, the contractor did experience some problems with frost in <br />both the fill and borrow areas. These areas were processed until <br />the frost was broken up and the soils were considered acceptable <br />for use as fill by our technician. <br />This opportunity to be of professional service is sincerely <br />.appreciated. If any questions arise or if further information is <br />required, please feel free to contact the undersigned at your <br />convenience. <br />Respectfully submitted, <br />LINCOLN DeVORE, INC. <br />', ~r~'• <br />By: Robert J. Huzjak, P.E. %~.~:. <br />Project Engi~r `., , <br />Sg'-• <br />Reviewed by: ~ r Mor ist~~P~:=;. E.- ~ '. ,,:~c~ <br />., <br />RJH/lab ~ - ~t~`.~. fir' <br />LD Job No. 70219-P ~ -r_~=-=' <br />cc: Wyoming Fuel Co., Weston, Colorado <br />Attn: T. J. Augustine <br />Lincoln DeVore, Pueblo <br />