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2.04.6(2)(b) <br />• Conductivity Values ranged from 1.2 to 7.6 with an <br />average of 3.3 mmhos/cm. The DEQ sets a suitable conductivity <br />range for overburden and regraded soils from 0-8. No problems <br />are anticipated with respect to salinity. <br />Saturation Percentage Values ranged from 31.2 to 85.5 with an <br />average of 45.7%. The DSL sets unsuitability criteria at less <br />than 25% and greater than 85%. The DEQ sets marginal criteria at <br />less that 25% and greater than 80%. Only one analytical value is <br />close to the unsuitable criteria. This sample is immediately <br />above the coal seam in core hole CC-3-90. The SAR value for this <br />sample is 4.21 which tends to offset the high saturation percent- <br />age. The next highest saturation percentage vale is 59%. Since <br />only one sample tested was close to the unsuitability criteria, <br />no problems are anticipated with saturation percentage. <br />Texture Class Values ranged from 6 to 51 with an <br />average of 22% clay. Values of over 35% clay are considered <br />suspect. Two samples were over the 35% suspect level, one at 38% <br />and the other at 51%. The sample with 51% clay is of most con- <br />cern. This is the same sample that had the 85.5% saturation <br />percentage and the SAR value of 4.21. A high clay content pre- <br />cipitates the high saturation percentage. Since only one sample <br />is significantly over the suspect level no problems are antici- <br />pated with respect to texture in the regraded overburden. <br />• Sodium Absorntion Ratio Values ranged from 0.75 to 8.05 with an <br />average of 4.43. The DEQ sets a suitable SAR range for regraded <br />overburden from 0-10. No problems are anticipated with respect <br />to SAR. <br />Selenium Values ranged from 0.0 to 0.07 with an <br />average of 0.01 ppm. The DSL sets a suspect Selenium level of <br />greater than 0.1 ppm for regraded overburden. No problems are <br />anticipated with respect to Selenium. <br />Boron Values ranged from 0.0 to 0.4 with an <br />average of 0.13 ppm. The DEQ set an suitable level of less than <br />5.0 ppm. None of the samples exceeded the 5.0 ppm limit. No <br />problems are anticipated with respect to Boron. <br />Nitrate, Nitrogen Values ranged from 0.0 to 5.5 with an <br />average of 2.6 ppm. The DEQ sets an unauitable level of greater <br />than 50 ppm for aquifer restoration. None of the samples exceed- <br />ed the 50 ppm limit. No problems are anticipated with respect to <br />Nitrate, Nitrogen. <br />• 2.04-9 <br />