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<br />1633 Terra Avenue <br />~~ <br />Inter•fllountaln Laboratories, Inc. <br />Sheridan, Wyoming 82801 <br />PEABODY COAL COMPANY <br />FLAGSTAFF, ARIZONA <br />MINE: NUCLA <br />December 18, 1991 <br />Lab No. Location <br />66693 5M-13 <br />68694 <br />!, 66695 SM-14 <br />^' 68696 <br /> pH EC Satur- Calcium Magnesium Sodium SAR <br /> mmhos/tm anon meq/1 meq/1 meq/1 <br />Depths @ 25'C i <br />0.0-2.0 7.4 3.03 37.4 22.5 21.0 3.J8 0.81 <br />2.0-4.0 7.4 3.00 36.9 22.6 20.8 3.15 0.68 <br />0.0-2.0 7.2 3.60 38.7 24.0 32.3 4.02 0.76 <br />2.0-4.0 1.2 3.55 34.0 23.8 31.4 2.86 0.54 <br /> <br />Tel. (307) 672-8945 <br />Sand Silt Clay Texture <br />t t 3 <br />52.5 23.1 24.4 SANDY CLAY LOAM <br />54.4 23.1 22.5 SANDY CLAY LOAN <br />58.0 19.5 22.5 SANDY CLAY LOAM <br />59.8 19.5 20.1 SANDY CLAY LOAM <br />Page 1 of 2 <br />Miscellaneous Abbreviations: SAR= Sodium Adsorption Ratio, CEC= Cation Exchange Capacity, ESP= Exchangeable Sodium Percentage, Exch= Exchangeable, Avail= Available <br />