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TABLE 2 • <br />Comparison Between Premine Overburden Concentrations <br />of pH, ABP, Mn, Ca, Mg, and EC With the Resultant <br />Pearaded Spoil Levels for the Wolf Creek Mining Area, <br />Seneca II Mine, October, 1986. <br />Overburden Concentration Spoil Concentration <br /> <br /> <br />Parameter <br /> <br />Units Upper <br />Mean <br />Ualuel 45% <br />Std. <br />Dev. Lower <br />Mean <br />Valuez 55% <br />Std. <br />Dev. <br />Mean <br />Value <br />Std. <br />Dev. <br />pH - 6.8 0.8 5.9 1.2 6.0 1.2 <br />ABP TCaC03/A 28.5 65.7 -5.1 22.8 -1.2 15.2 <br />Mn ppm 40.1 25.6 13.3 12.9 45.9 21.1 <br />Ca meq/1 2.9 2.3 22.1 8.6 22.2 9.1 <br />Mg meq/1 1.6 1.6 21.3 11.1 23.4 15.6 <br />EC mmhos/cm 0.6 0.4 3.1 1.1 3.4 2.0 <br />In = 22 except Pin where n = 10 <br />2n = 31 except Mn where n = 13 <br />3. The results of the pH and manganese monitoring program in the <br />regraded spoils near Core Holes 2438E and 2334E should be forwarded <br />to the Division for inclusion into the permit document. <br />RESPONSE: <br />Overburden Core Hole Sites 2438E and 2334E are located in the Wolf Creek <br />mining area (Exhibit 6-1, Drill Hole Location Map). The pH and Mn <br />monitoring results for the Wolf Creek mining area are presented in Table <br />1 for adequacy review geology description response Number 2. A <br />discussion of this data is presented in adequacy review geology <br />description responses 2 and 5. <br />4. Exhibit G-1 should be modified to include the locations of all core <br />holes which are referenced in Tab 6 of the original permit <br />application. <br />6 <br />