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Soil Sample: SILTY SAND (SM) Sample No. I (Typkal) z <br />Geologic Origin: ALLUVIAL Existing Embankment Test by: JND <br />Natural Water Content (w): 4.2°A Boring No.: 3 Depth 8' <br />Soil S cific Gra ' Gs : to-Place De 111.8 <br />COBBLE to GRAVEL SAND ~ SILT to CLAY <br />100 }"TTI I f-~T1Q ~~I I I r I 11 <br />w <br />eo <br />70 <br />rn <br />c ~ <br />.N <br />N <br />W <br />o_ ~ <br />c <br />U <br />d ~ <br />o_ <br /> <br />20 <br />10 <br />0 <br />125 75 50 <br />Grain Size (mm} <br />Sieve (mml % Passing <br />Effective s¢e mm <br />Cu <br />Cc <br />Plastic Limn (PL) NP <br />liquid Limit (LL) 1~ <br />Plasticity Index (PI) NP <br />Shrinkage Limit (SL) <br />Shrinkage Ratio <br />DIRECT SHEAR: CD <br />Ult. Res. <br />Shear Angle 17.3 deg. 17.1 <br />Tan Shear: 0.311 0.31 <br />Cohesion: 69 psf 13 <br />MOISTUREJDENSnY RELATIONSHIP: <br />5" ~ 125 ASTM Method: Dfi98 B <br />3" 75 Max. Dry Density : 118.6 pcf <br />2' S0 Optimum Moisture : 12.2•/. <br />1-1/2" 37.5 Maximum HVEEM-CARMANY: FHA Soil Swell: <br />1" 25 Size Allowed 'R' Value (fD 300 psi: °h Swell <br /> <br />3/4" 19 By Sampler Displacement 300 psi: psf <br />1/2" 12.5 100 2 I/2" Expansion ~ 300 psi: Remolded Sample <br />3/8" 9.5 98 ALLOWABLE BEARING (net): <br /># 4 4.75 87 Standard Penetration (SPT): psf <br />#10 2 72 Unconfined Compression (qu): psf <br />#20 0.85 62 CONSOLIDATION: 3.26% ~ 2042 psf <br />#40 0.425 57 6.99% ~ 4069 psf <br />#100 D.15 45 SULFATE SALTS: 2000+ ppm <br />#200 0.075 35.2 PERMEABILITY: <br />0.02 18 K (20 C) Remolded 3.6E-04 cm/sec (aD 103.6 acf <br />0.005 12 Remolded 6.3E-06 cm/sec (~ 112.7 ocf <br /> SOIL ANALYSIS and SUMMARY <br /> POND 12 EMBANKMENT, CAMEO <br />~ ~~ pAd~PMr.1~A1 r/IYt rAm OYI1V_ P911.9d P_ ~n_ <br />Western Associated Coal Corp. ~ Date <br />LINCOLN - DeYORE, Inc. <br />Geotechnical Consultants <br />Grand Junction, Colorado <br />Flagstaff, Arizona 9-18-97 <br />No. Drawn <br />86110.) EMM <br />