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TABLE 3.9-4 STABILITY ANALYSIS RECLAMATION OF PRELAW DISTURBANCE <br />JOHN C. KEPHART do CO. <br />~ G~~ND JUNCTION L~~O~R10~I~S <br />•l5 NORTH AVENUE • PHONE 2.2-]619 • GRAND JUNCTION, COLORADO aISOi <br />ANALY'RCAL REPORT' <br />Received (rom: Grand Valley Coal; ,john Walters <br />F'D bo;: 7~? <br />Loma, CD 81526-Uillp <br />Customer <br />Date Received <br />b/1~/97 <br />laboratory <br />47~b <br />Date Reported <br />Lab number <br />Sample ID <br />Particle Sipe Analysis: <br />1 ~~ <br />1-~•/4" <br />~/4--1 /2" <br />1/2-1/4" <br />1/4" -2mm <br />2mm-1mm <br />• 1.6-C1.5mm <br />0.5-0.25mm <br />0.25-0. l I"Jmm <br />6.1-U.65mm <br />O.OS-O.uC12mm <br />CO.OU2mm <br />Lab number- <br />Sample ID <br />Particle Size Analysis: <br />?2 mm <br />2 - I mm <br />1 - 6.5 mm <br />6.5 - 0. 2:, mm <br />C1. 25 - 6.10 mm <br />0.1p - p. 05 mm <br />Sit - 2 micron <br />476 <br />b1acV: Solids <br />0 <br />1,28 <br />7. 5 /. <br />9,15 <br />24.8 <br />2U,48 <br />6.p7 <br />7,_~ <br />_.5' <br />1,22 <br />6.61 <br />U, 0 <br />solids <br />Sample <br />9/2/97 <br />] <br />47~~6 <br />black Solidsl "Soil" fraction only <~:2mm): <br />i> % pebble=_ <br />45.2 % very coarse sand <br />13.4 % coarse sand <br />16.19 % medium sand <br />7.79 % fine sand <br />2.71 % very fine sand <br />= 85.2 % SAND <br />14.61 <br />= 14.61 % SILT <br />C2 micron = i>.177 % CLAY <br />• NOTE: Particle sire distribution of the "Soil" fraction (C2mm) <br />corresponds to US Dept. of P~gricLllture Texture: "Sand." <br />Lab Dire~_tor: Brian 5. Bauer <br />Mc Vol I PAGE 15 10-12-97 <br />