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<br />~~ <br />1 <br />I <br /> <br /> <br /> <br /> <br />1 <br />1 <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />STEEPEN ROBERTSON & KIRSTEN <br />Consulting Engineers & Sciantisb Project: San Luis-Lower Impoundment <br />ob. No.: 14717 Page 1 of 1 <br />Data: 12-18-92 <br />Feature: Tailin s <br />Bore Hole Lo Hole No. 11 Location: N206037, E2037830, EL 8560.93' <br />DEPTH DESCRIPTION AILINGS COMMENTS <br />0-9' flna grained sand, gray, <br />mad moist upper 11 1/2' ware how <br /> <br />9' - 18' flna grained sand, mad moist to <br />moist w/de th - mad dense out of frozen zone <br /> <br />18 - 27' flna grained sand, moist, mad dense to <br />loose <br /> <br />27' - 36• flna grained sand, gray, moist to wet wJ <br />de th, loose auger advancing eebily <br /> <br />36' - 46• flna grained sand, grey, moist to wet w/ <br />de th, loose <br /> <br />45' - 54• flee grained mixture of grey 8 bm, <br />va wet, loose <br /> CAVING ®45• - 54• -TERMINATED BORING <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> HOLE CAVED -TERMINATED BORING <br /> <br /> <br />