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• <br />o+ <br />A <br />A <br />a <br />c <br />m <br />m <br />~ ~,gorc <br />,,,~~ ~ <br />i. <br />May 23, 19864•-. _ ,~+~.' <br />Inter•fllountoln Loborctortes, Inc. <br />Farmington, New Mexico 87401 <br />P EABODY COAL COMPANY <br />FLAGSTAFF, ARI20NA <br />Mine: NUCLA <br />Overburden Analysts <br />Tel. (505) 326-4737 <br /> <br />Lab <br />No. <br />Sample <br />ID <br />Depth <br />ft, <br />pH <br />Conductivity <br />mmhos/cm @ 25 C <br />Saturation <br />% Soluble Cations <br />Calcium Magnesium Sodium <br />meq/1 meq/1 meq/1 <br />SAR <br />(1) <br />2071 DH 873 0 .0-1. 0 7 .5 0 .78 31. 5 6.87 0.76 ]. 60 0 .82 <br />2072 1 .0-2. 0 7 .5 1 .52 37. 2 3.64 2.68 7. 33 4 .12 <br />2073 2 .0-3. 0 7 .4 4 .89 48. 0 30.0 28.7 31 .5 5 .81 <br />2074 3 .0-5. 0 4 .6 5 .67 48. 3 29.0 25.3 29 .6 5 .68 <br />2075 5 .0-6. 8 3 .6 2 .93 110 . 7.47 5.81 16 .9 6 .56 <br />2076 6 .6-10 .0 4 .0 1 .63 33. 4 5.37 2.78 8. 06 3 .99 <br />2077 ]0 .0-]3 .0 5 .2 2 .93 31. 8 26.9 4.69 9. 61 1 .16 <br />2078 13 .0-14 .0 3 .6 1 .90 32. 2 13.1 3.45 6. 87 2 .39 <br />2079 14 .0-16 .0 3 .7 3 .26 37. 2 24.3 6.56 10 .3 2 .62 <br />2080 23 .6-24 .6 4 .8 3 .10 29. 0 3.45 4.04 2. 35 1 .21 <br />2081 24 .6-27 .0 5 .8 2 .61 27. ] 7.08 5.85 1. 94 0 .76 <br />2082 27 .0-29 .0 4 .6 3 .G7 36. 7 23.9 19.5 3. 10 0 .67 <br />2083 29 .0-29 .6 7 .6 2 .79 30. ] 29.0 9.19 1. 91 0 .32 <br />(1) Sodium Adsorption Ratio. <br />