Laserfiche WebLink
• <br />• <br />u <br />Table 6-13 <br />Chemical and Physical Properties of Interburden <br />Shale (Unit 4) for <br />Phase II Samples Collected at Nulca Mine, <br />November, 1986 <br />Parameter Phase II Hole Number2 <br />Units 873E 874E 875E 876E Mean <br />pH 3.7 3,8 3.6 4.4 3.9 <br />EC4, mnihos/cm 2.8 3.7 1.8 6.6 3.7 <br />SPS, % 35.5 38.3 47.2 51.4 43.1 <br />Ca, meq/1 20.6 -- -- -- 20.6 <br />Mg,meq/1 5.5 -- -- -- 5.5 <br />Na, meq/1 9.2 -- -- -- 9.2 <br />SAR6 2.5 -- -- -- 2.5 <br />Total S, `0 0.28 0.43 0.23 0.35 0.32 <br />Sulfate S, 0 0.21 0.27 0.00 0.'22 0.17 <br />Pyrite S, 0 0.06 0.15 0.11 0.03 0.09 <br />Organic 5, ~ 0.01 0.01 0.12 0.10 0.06 <br />NP7 -3.7 0.4 -2.2 1.8 -0.9 <br />ABPB -5.9 -4.6 -9.4 -2.3 -5.6 <br />Fe, ppm 302.3 41.4 68.2 69.8 120.4 <br />Mn, ppm 7.8 8.0 0.3 0.2 4.1 <br />Ni, ppm 0.9 -- -- -- 0.9 <br />Zn, ppm 3.8 -- -- -- 3.8 <br />hto, ppm G.1 -- -- -- 0.1 <br />SD3 <br />0.4 <br />2.1 <br />7.4 <br />0.09 <br />0.12 <br />0.05 <br />0.06 <br />'2.5 <br />3.0 <br />121.9 <br />4.4 <br />lUnit 4 consists of gray and dark gray shale iininediately above the lower <br />2Dakota Coal seam. <br />3For drill hole location, see Exhibit 6-3A, Overburden Sample Locations. <br />45D-Standard Deviation. <br />EC-Electrical Conductivity. <br />6SP-Saturation Percentage. <br />7SAR-Sodium Adsorption Ratio. <br />NP-Neutralization Potential; Uriits are tons of CaC03 required per acre <br />furrow slice. <br />BABP-Acid Base Potential; Units are tons of CaCO required per acre furrow <br />slice; ABP was calculated from Pyrite and Organ~c S. <br />6-48 <br />Revised 11/01/86 <br />