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CORRELATION <br /> WILLIAMSON DRIVE PROBE (WDP) <br /> STANDARD PENETRATION TEST (SPT) <br /> El Dorado(n 10._.. <br /> 30 <br /> y=0.6482x s ' Lower Eel(n=50) <br /> R2=0.6803 y=0.845xo1474 <br /> 25xiot <br /> • R2=0.5761 <br /> a <br /> X A X <br /> 20 XX x Freshwater(no=56) <br /> X y=3.364x <br /> 82 <br /> )5( a • ♦ R2=0.5824 <br /> ,. <br /> a 15 <br /> I- la'A M 1a I 5It■ Elk River(n=26) <br /> n.N NA �y' el a 2.1084xo.4os9 <br /> a .jri y - <br /> 10 --- . l R2=0.3027 <br /> A <br /> a � . A •♦• <br /> 5 .. .r.•• �+ e i <br /> • ♦ I X El Dorado ♦ Lower Eel <br /> s s Freshwater 0 Elk River <br /> 0 <br /> 0 20 40 60 — —Elk River - - -Lower Eel <br /> WDP(blowslt) —Freshwater El Dorado <br /> SOURCE: Published literature by W.C. Adams (Hart Crowser, Inc.), R.W. Prellwitz <br /> (Bitterroot Geotechnical) & T.E. Koler (El Dorado National Forest). <br /> C <br /> n. <br /> .0 30 <br /> Z25 'e.blaed EDF&PLC Egesdea • <br /> y 0-Q322•D"t776 <br /> ar • . <br /> E20 • • ♦ • .• <br /> p •• • <br /> • ♦ • <br /> y • •♦ ♦ ♦ • <br /> Or • <br /> '0 ♦ •4�..' • • •• <br /> •& ` •• • • <br /> • �I, •• • <br /> a S. <br /> '0 • <br /> CO <br /> V1 0 10 20 30 40 50 60 <br /> Williamson Drive Probe,D(bpf) <br /> • El Dorado N.F. A Pacific Lumber Co. — Power Regression I <br /> SOURCE: United States Forest Service, Technology Development Program Website <br /> (http://www.fs.fed.us/t-d/programs/im/williamson_drive/correlation.shtml) <br /> 31I34 <br />