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• <br />TABLE 2.04.9-2 <br />CRITERIA FOR EVALUATING SOIL SUITABILITY <br />PARAMETER - UNITS <br />PH <br />Conductivity (nnmhos.1cr <br />Saturation percentage (%) <br />Sodium adsorption ratio <br />Calcium carbonate percentage <br />Selenium (ppm) <br />Particle size' <br />Coarse fragments (%) <br />4.0' <br />>80% <br /><25% <br />>2 pp- <br />Ali soil textures except: <br />s, Is, sc, sic, c <br />15%S <br />I The threshold levels are to be used as a guide in evaluating the suitability of a soil material f(x <br />redainabon. An evaluation should take into account the "total system ". lnteractivepararnLterstr <br />either nullify or verify the significarh:)e of a potential problem. <br />• ' The actual maximum acccVable salt level Wit depend on the plant species proposed in the <br />revegetalion plan and the potential for uqNard salt movement. <br />� Specific level depends upon day rnineralcxjy, soil texture, and saturation percentage according to <br />Dollivapf et al- 1983, <br />' fhe specific percentage of day or :and allowed voll depend Upon day n organic rnotte, <br />content, consistence, soil lift, spot[ character istics. and size of sand fraction, <br />These values may vary depending upon the pant species proposed for revegetation in specific <br />locations (e.g_ a soil "ith a high coarse ftagnnent content throughout its profile may LX- completely <br />salvaged if used for rang0and versus cropland postmine land use). <br />2,04-9-9 <br />• Revised September 2010 (PR06) <br />Attachment 2.04.9-6-3 <br />THRESHOLD SUITABILITY LEVEL` <br />