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<br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />DRILLING METHOD HX Coring <br />DEPrH TO GROUNDWATER Not Ene. <br /> <br />DESCRIPTION AND CLASSIFICATION <br /> <br />SURFACE ELEVATION 281.0 reet <br /> <br />LOGGED BY <br /> <br />ntd <br />8/9/94 <br /> <br />BORING DIAMETER 3-ineh <br /> <br /> <br />PROJECT NO. <br /> <br />7147-G <br /> <br />DATE DRILLED <br /> <br />DEPTH <br /> <br /> ZIJJ~ ~ <br />'" OUI- '" >- <br />HZ"- "'~ '" <br />IJJ I-a;, <br />..J <tl-Ul IJJI- IJJ~ 0 ~ <br />"- "'Ul::< I-Z 5X " '" <br />>: I-HO a;Ul U~ '" ~ <br /><t IJJUl..J ::<1- <br />Ul Z Ul <br />ZUllO 0 '" <br /> ~a:::v U <br /> 10 <br /> <br /> <br />WELL <br /> <br />DESCRIPTION AND REMARKS <br /> <br />CONSIST SOIL (FEET) <br />TYPE <br /> <br />CONSTRUCTION <br /> <br />3 ft sand heave into core barrel when <br />attempting SPT <br /> <br />Brown gravelly medium to carse sand <br />with some silt (9%) <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />at 53 ft: cobbles and boulders <br /> <br />Weathered rhyolite, breaks into partially <br />cemented coarse sand particles <br /> <br />Bottom of borehole at 62.5 feet below <br />existing grade. <br /> <br /> <br />NORTHWEST, INC. <br />Consulting Engineers & Scientists <br /> <br />45 <br /> <br /> <br /> <br />24 <br /> <br />50 <br /> <br />8 <br />25/4" <br /> <br />55 <br /> <br />9 <br />25/2" <br /> <br />...... ...... <br />...... ........... <br />.................. <br />.................. <br />.................. <br />.................. <br />. . . . . . . . . . . . . . . . . . <br />.................. <br />.................. <br />.................. <br />.................. <br />.................. <br />.................. <br />.................. <br />.................. <br />.................. <br />.................. <br />.................. <br /> <br />60 <br /> <br />25 <br />36 <br /> <br />EXPLORATORY BORING LOG B-2 <br /> <br />CONTINENTAL DAM <br />HmSDALECOUNTY, COLORADO <br /> <br />DATE <br />February 10, 1995 <br /> <br />BORING <br />No. <br /> <br />B-2 <br />