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COMMERCIAL TESTING 8c ENGINEERING CO. <br />GENERAL OFFICES: 1919 SOUTH HIGHLAND AVE., SUITE 21x8, LOMBARD, IWNOIS 80148 • (708) 953-9300 <br />a :-~ <br />Member of eIS SGS Grate Isooe~: cii~eiaN ds SuvstRancs) <br />December 18, 1990 <br />R RING COAL <br />1015 W. Main Street <br />Durango CO 81301 <br />PLEASE ADDRESS ALL CORRESPONDENCE To- <br />10775 E 51ST AVE., DENVER, CO 80299 <br />TELEPHONE: (3a1- a73a772 <br />FAX: (303) 373-4791 <br />TELEx:255978 <br />Saaple identification by <br />RING COAL <br />2ND EAST (ROOF). <br />Rind of sample ROOF <br />reported to us <br />Saslple taken at XXXXXX <br />Satapls taken by RING COAL INC. <br />Date sampled ------ <br />Data received November 9, 1990 <br />Analysis Report No. 72-209547 <br />PARAMETERS <br />Paste pH <br />Conductivity, umhos/cm <br />Total Combustible Solids, 9' <br />PARTICLE SIZE <br />Saturation Percent <br />Sodium Absorption Ratio <br />SOLUBLE ELEMENTS <br />Calcuim, Ca <br />Magnesium, Mg <br />Sodium, Na <br />Nitrate, N03 <br />Boron, B <br />TOTAL METALS <br />8.0 <br />7,200 <br />6.I8 <br />Clay Silt Sand <br />19.98 29.98 50.04 <br />3.69 <br />39.9 <br /> mg /L <br /> 130 <br /> 61 <br />2,200 <br /> 0.32 <br /> 0.12 <br />ug/g TOTAL METALS ug/g <br />Arsenic, As IO Manganese, Mn 72 <br />Cadmium, Cd <4 Mercury, Hg 0.13 <br />Copper,Cu <20 Molybdenum, Mo <20 <br />Iron, Fe 9,000 Selenium, Se <8 <br />,,~ Lead, Pb <20 Zinc, An 37 <br /> RespeettutN submitMd. <br /> COMMERCIAL,TESTING b ENGUJEERING CO. <br />- <br /> y .. ~ <br /> <br /> Manager. DrnvetKaboratory NOee~ber 1993 <br />OVER ~0 BRANCH LA80R4TORIES STRATEGICALLY LOCATED IN PRINCIPAL COAL MINING AREAS. TtpEWATER AtHp C,gEA7 LAICE3 POR7s~ ANO RIVER LOADING FACILSTIES <br />