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1 <br /> r <br /> Client Name: CHEN-NORTHERN, INC. September 13, 199 <br /> GLENWOOD SPRINGS, CO Sheet 3 of 26 <br /> Project No. : 90-909 <br /> Project Name: Mid Continent Mine <br /> Laboratory No. : 118951 <br /> Sample Name: COMPOSITE 12"+ DEPTH SUTEY REFUSE <br /> Sample Date: 08/15/91 <br /> Collected by: RICK THOMAS <br /> Time Sampled: None Given <br /> AVERAGE DATE <br /> PARAMETER VALUE ANALYZED <br /> SOIL CONSTITUENTS: <br /> Acid/Base Potential 20 tons/1000 tons 09/09/91 <br /> Calcium Carbonate 6.13 % 09/04/91 <br /> Cation Exchange Capacity 4 meq/100 gm 09/09/91 <br /> Electrical Conductivity Saturated Paste 7.36 mmhos/cm 09/04/91 <br /> Exchangeable Sodium Percent 57.5 % 09/09/91 <br /> Gypsum * 09/09/91 <br /> Neutralization Potential 61.3 tons/1000 tons 09/04/91 <br /> Organic Matter 7.79 % 08/29/91 <br /> pH Saturated Paste 8.0 S.U. 08/29/91 <br /> Saturation 22.7 % 08/29/91 <br /> Sieve Fraction <2mm 38.9 % 08/26/91 <br /> Sieve Fraction >2mm 61.1 % 08/26/91 <br /> Sodium Absorption Ratio 28.2 08/30/91 <br /> Solids, Combustible 5.40 % 09/04/91 <br /> Sulfur (Total Eschka) 1.34 % 09/05/91 <br /> Sulfur Pyritic as S 0.52 % 09/06/91 <br /> Sulfur Sulfate as S 0.03 % 09/06/91 <br /> Sulfur Organic as S 0.79 % 09/06/91 <br /> PARTICLE SIZE ANALYSIS: <br /> Sand 88.9 % 08/23/91 <br /> Silt 8.9 % 08/23/91 <br /> Clay 2.2 % 08/23/91 <br /> Texture, USDA SAND 08/28/91 <br /> * None detected <br /> Chen-Northern, Inc. Consu"ino Engineers and Scientists <br />