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Barr Engineering Company <br />4700 West 77th Street LOG OF BORING SB-06-01 <br />BARR Minneapolis, MN 55435-4803 <br />~ Sheet 1 of 1 <br />Project: Monument Dam Location: Paonia, CO client: Mountain Coal Company <br /> Barr Project Number: 06/26-067 ~ STANDARD PENETRATION NATURAL DRY <br /> a~ TEST DATA DENSITY <br />w ~ o°' ~ ~ e N in blowsfft OO (pcf) ~r <br />o L MATERIAL DESCRIPTION ~ a >o io 20 so 4o fos ifs t2s <br />' = ~ Z ~ <br />ia n (ASTM D2488) a ~- <br />> ~ <br />~ ~ d L <br />~ SHEAR STRENGTH, ksf Water Content, °h <br />LLl ~ ~ ~ V1 Qp X UC D TV CIE WP WN WL <br />~ e <br /> <br />0 Surtace Elev.: 7340.2 v~ vs o vsR o <br />1 2 3 4 ' <br />20 40 60 <br /> SILTY SAND (SM), sand fine- to coarse-grained, with fine- to <br /> medium-grained gravel (angular), light brown/tan, dry to <br /> moist; moist below 5.0' <br /> 17 ~ 7 <br /> <br />5 I <br />I <br />7335 <br /> 19 19 <br /> 100 » 100 <br /> 10 <br />7330 <br /> 20 <br /> <br /> 7327.7 .~ . :~: \ <br /> LEAN CLAY (CL), red, dry to moist; many broken shale 12.5 \ <br />8 <br /> fragments, looks just like material exposed on north 28 ~ <br /> abutment / <br /> 15 / <br />7325 <br /> 23 c~23 <br />TI <br />I <br /> <br /> <br />24 I <br />I <br />~2 <br /> <br />7320 20 <br /> <br /> \ <br /> 7318.2 30 30 <br /> End of boring at 22.0 feet, refusal 22.0 <br /> 25 <br /> 30 <br />Completion Depth: 22.0 Remarks: <br />Date Boring Started: 6/29/06 <br />Date Borin <br />leted: 6/30/06 <br />Com <br />g <br />p <br />Logged By: Driller SAMPLE TYPES WATER LEVELS <br />Drilling Contractor: DA Smith <br />D <br />illi <br />M <br />th <br />HSA <br />d <br />m Auger Cutting 'Shelby Tube While Drilling: N/A <br />r <br />ng <br />e <br />o <br />: End of Drilling: <br /> ® Split Spoon ~ Rock Core <br /> hrs After Drilling: <br />the stratification lines represent approximate boundaries. The transition may be gradual. <br />