Laserfiche WebLink
SCOiI,COX&ASSOCIATES,INC. <br />•V. Eih~a~U (.Lip>~n~~ 1\'. P.E <br />Febuarv 27, 199: <br />Ciri' of Boulder <br />Open Space and Real Estate <br />P.O. Box ~1 <br />Boulder, Colordo 30.:06 <br />.~ttr:: ~L-. Gle_~~. Car-iere <br />ATTA.CHiV~N7 <br />consulting engineers • sun/eyors <br />• SCilli~m r. .Vrt[rlirld. P.E. <br />Re: Project 96173 - ~`=aerial Testings <br />Va~.a C>pe_~ Space Stoccpiles <br />Boulder, Colorado <br />Dear ~L. Ca_*rie_-e: <br />On . ebr_ar,~ '_=. 1995, at your r°~uest, a representative of Scott, Cox & <br />.=.SSOC:ates, L',C. 'e^eVed s011 Sa.T-1Dles .TOm uSO°_ StOC:711es !OCated at the <br />above refers^.ce_ site. The punose o; t:~e saripiing =_-d testing was to <br />evacuate u'~e ~-.~reermg prope_~es of 4~e mat`=as =zd to give our opinion <br />as to possible sec. <br />Two OL the Sa=.rites ~Nere t?ste7 :n i.e laboP_to;y t0 ~°_te_^.iLLTie taLLe i~yerbe!'o <br />11...`L'6 and o E:Gat10n. Tne SdII'LDles .'.Om tll'le east anC southwest StOG~Cp1le5 <br />were usually s~-ular therefore oniv one sample was tested. The results of 'he <br />tes~no are ou-.=ned below: <br /> Vfiddle StoctiDile ~ East Stocrile <br />Sieve Size ~ Percent Passing ~ Percent Pass_.~ <br />11/2 100.0 ~ <br />1 ~ 35.7 100.0 <br />3/= 78.3 ~ 99.0 <br />1/2 X69.9 X31.1 <br />R . 54.5 ~ X6.4 <br />~8 X16.5 X37.6 <br />m10 ~ ~.~ ~ 35.3 <br />::15 ~ 38.7 31.3 <br />-0 ~ 28.0 ~ 2?.9 <br />X200 ~ 15.3 15.1 <br />1 <br /> <br />,~, <br />An, <br />_~ <br />2 <br />153U iim ]carat tlouldPr. Colorado BOOS • UO]) l~l•.057 • Fu: UOJ7 ail-3187. <br />