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<br />I <br /> <br />DRILLING MIITHOD <br /> <br />HX Coring <br /> <br />DEPI'H TO GROUNDWATER <br /> <br />Not Ene. <br /> <br />I <br />I <br /> <br />DESCRIPTION AND CLASSIFICATION <br /> <br />SURFACE ELEVATION 264.0 feet <br />BORING D1AMIITER 3.ineh <br /> <br />LOGGED BY <br /> <br />NTD <br />8/5/94 <br /> <br />DATE DRILLED <br /> <br />DEPTH <br /> <br /> Zw~ ^ <br />'" OUI- '" >- <br />HZLL "'~ '" <br />w I-a:, w~ WELL <br />--l a:I-Ul wI- 0 ~ <br />"- "'Ul:J: I-z 5x Cl '" <br />I: I-HO a:UJ u~ '" ~ <br />a: wUl--l :J:I- CONSTRUCTION <br />Ul Z w <br />zWlO 0 '" <br /> ~~- U <br /> 35 - <br /> - <br /> - <br /> - <br /> <br />DESCRIPTION AND REMARKS <br /> <br />CONSIST SOIL (FEET) <br />TYPE <br /> <br />I <br />I <br />I <br /> <br />from 35 to 40 ft: no gravel or rock <br />fragments <br /> <br />Medium to coarse sand and scattered <br />gravel, little silt. <br />50 % return circulation <br /> <br />Medium to coarse sand, little or no fines, <br />some gravel <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 />50 to 59 feet: fractured rhyolite, oxidized <br />at fractures. dominant fractures are <br />horizontal. <br />fracture depth: 50'4",51',51'4",51 T, <br />52'6", 52'S", 53'3", 54'3", 54'6", 54'S", 55', <br />55'6",55'10",56',56'3",56'5",56'6.5", <br />56'7.5",57'4",57'9" 58T and 58'11". <br /> <br />Bottom of borehole at 59 feet below <br />existing grade. <br /> <br /> <br />NORTHWEST, INC. <br />Consulting Engineers & Scientists <br /> <br />~.;.. <br /> <br />_.', <br />','. . <br /> <br />~... <br />....~ <br />..... <br /> <br />PROJECT NO. <br /> <br />7147-G <br /> <br />. . <br />. . . <br />. . <br />" . <br /> <br />. . . <br /> <br /> <br />. . . <br /> <br />. . <br />. . . <br />. . <br /> <br />45 <br /> <br /> <br />36 <br /> <br /> <br />50 <br /> <br />100 94 <br /> <br />55 <br /> <br />100 29 <br /> <br />...... <br />...... ...... <br />........... ...... <br />:.:.;.:.:.:.:.;.:-:.:.:.:.;.:-:.:.:. <br />.................................... <br />.................................... <br />.:.;.:.:.:.:.:.:.:.:.:.:.:.:.:.;.:.: <br />.................................... <br /> <br />EXPLORATORY BORING LOG B-3 <br /> <br />CONTINENTAL DAM <br />HINSDALE COUNTY, COLORADO <br /> <br />DATE <br />February 10, 1995 <br /> <br />BORING <br />No. <br /> <br />B-3 <br />