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Barr Engineering Company
<br />4700 West 77th Street LOG OF BORING SB-06-05
<br />BARR Minneapolis, MN 55435-4803
<br />~ Sheet 1 of 3
<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 ~ ~ \ N in blows/ft O (pcf) ~c
<br /> "~ MATERIAL DESCRIPTION ~ a > o to zo so ao cos ~~s ~2s
<br />0
<br />L
<br />F
<br />z ~
<br />> (ASTM D2488) n f'
<br /> O ~ ~ ~
<br />~ SHEAR STRENGTH, ksf Water Content, °h
<br />LLJ ~ ~ N C1p X UC ~ TV 31E Wp Wry W~
<br />
<br />D
<br />Surtace Elev.: 7335.0 f0 VSO VSR O
<br />~ 2 3 a
<br />20 ao so
<br /> POORLY GRADED SAND (SP), trace silt, sand fine-grained,
<br /> trace fine- to coarse-grained gravel (sandstone), grayttan,
<br /> moist, medium dense
<br /> 20 20
<br />
<br />
<br />7330
<br />5 7330.0 ::.'.:~:: \
<br /> LEAN CLAY (CL), trace to with fine- to medium-grained 5.0 \
<br /> sand, trace fine- to medium-grained gravel (sandstone), gg 39
<br /> gray/brown/tan, moist, very stiff to hard ~
<br />
<br /> 22 0 2
<br /> 7325.0
<br />7325 10 POORLY GRADED SAND (SP), trace silt, sand fine- to 10.0 ::::::: /
<br /> medium-grained, trace coarse-grained sand, tan, moist, 13 ~13
<br />`
<br /> medium dense ~
<br /> 7322.5 : ~:~ _ . ~ \
<br /> Mixture of: 1. LEAN CLAY (CL), trace fine-grained sand, 12.5 : ::
<br /> gray/brown, moist 2. SILTY SAND (SM), sand fine- to 24
<br /> medium-grained, tan, moist
<br /> 7320.0 ' : ~ /
<br />7320 15 LEAN CLAY (CL), trace fine- to coarse-grained sand, trace 15.0
<br /> fine-grained gravel, gray/brown, moist, stiff to very stiff; 11 11
<br /> sandy silt from 18.7-19.5' ~
<br /> \ X
<br /> 25 ~2
<br /> \
<br />7315 20
<br /> 7314.0 39
<br /> SILTY SAND (SM), sand fine-grained, vrith fine- to 73~~:Q :. .. 39
<br /> rained gravel (sandstone), tan, moist, medium
<br />$~
<br />~ \
<br /> 73
<br />:
<br />dense \X
<br /> CLAYEY SILT (ML), with fine-grained sand, brown, moist, 22.5 \
<br /> tiff 7311.2 46 1J
<br /> LEAN CLAY (CL), trace fine- to coarse-grained sand, brown, 23.8 ~ ~
<br /> moist hard 7310.0
<br />7310 25 l f
<br />t
<br />i
<br />GRAVEL
<br />Y LEAN CLAY
<br />CL
<br />d
<br /> ), grave
<br />ine-
<br />o coarse-gra
<br />ne
<br />(
<br />L
<br />25,0 ~
<br />
<br />sandstone brown saturated hard
<br />9
<br />g' 1 25
<br /> SILTY CLAY (CL-ML), with fine-grained sand, trace fine- to
<br /> medium-grained gravel, brown, saturated, stiff \
<br />
<br /> 7306.5 1 01
<br /> 28
<br />5
<br />P
<br />ith
<br />ilt
<br />d f
<br />t ::; : 5 P
<br /> .
<br />ine-
<br />), w
<br />s
<br />, san
<br />o
<br />POORLY GRADED SAND (S ::
<br /> medium-grained, trace coarse-grained sand, trace fine- to /
<br /> 7305.0 :':':'':'
<br />7305 30 Continued Next Pa e
<br />Completion Depth: 77.0 Remarks:
<br />Date Boring Started: 7/5/06
<br />in
<br />leted: 7/5/06
<br />Date Bo
<br />Com
<br />r
<br />g
<br />p
<br />Logged By: JDG SAMPLE TYPES WATER LEVELS
<br />Drilling Contractor: DA Smith
<br />S
<br />m Auger Cutting ,Shelby Tube Q While Drilling: 23.8
<br />-
<br />Drilling Method: H
<br />A End of Drilling:
<br /> ® Split Spoon ~ Rock Core
<br /> hrs After Drilling:
<br />The stratification lines represent approximate boundaries. The transition may be gradual.
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