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~~SCOTT, COY&ASSOCIATES, INC. <br />Febn~ary 27, 1596 <br />Gtr os Boulder <br />Cke_~I Space ar.d Real Estate <br />P.O. Box ~1 <br />Boulder, Colorado 80306 <br />At'_-I: Vin. Glerlrl Car_:ere <br />A':CTACHIVIENT' C <br />consulting engineers • surveyors <br />`.Cillilm H. \tilzClfrld, P, E. <br />Re: Project 46ii8 - ~iatezal Tesun~ <br />Varna Ope_-i Space Siroccpiles <br />Boulder, Colorado <br />Dear vin. Ca_*riere: <br />C7n Febnsar~ 12, 1996, at your request, a represeatatve or' Scott, Cox & <br />~SSOG3te5, 1r~C. reTeved SOIL SdInD1eS irOffl ull.ree stocl<~iles located at the <br />abo~~e refere_~ICed site. I"ne pu.~ose oc' tie saz:IDiir.g and testing was to <br />evaluate the e_-lo:reer+mg properties of the matte^:as and to o ve our opinion <br />as to possible uses. <br />T wo or' the sarilpies were tested in the laboratorJ to deter line the Atterbe<g <br />limits and o adation. The samples from the east and southwest stockpiles <br />were usually sir:lilar therefore only one sa.*•tple was tested. The results of the <br />tes::ng aze outlined below: <br />Middle Stockpile ~ East Stoc(coile <br />Siege Size ~ Percent Passing ~ Pence-it Passing <br />11/2 100.0 ~ <br />1 ~ 85.7 100.0 <br />3/? ~ 783 ~ 99.0 <br />1/2 ~ 69.9 81.1 <br />r<~: ~4.~ ~ 16.? <br />TS ~ 16.5 37.6 <br />X10 ~ ??.1 ~ 35.8 <br />n16 ~ 38.7 313 <br />X10 ~ 28.0 ~ 2?.9 <br />X200 ~ 15.8 1~.1 <br />7 i }U iilh $lrrrl 8auldrr. Colorado 80301 • (3031 111-}051 • Faa: (3031111.3787. '._ . <br />".n:'. <br />