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and their physical characteristics. It is perhaps the most important parameter <br />• to good land reclamation and management programs. <br />Neither very sandy materials nor heavy clayey materials are recommended as <br />surface materials because of erosion problems. Likewise, clayey materials at or <br />near the surface require more management to get infiltration and/or permeability <br />rates suitable to supply moisture to the roots of plants. <br />Both drill holes contain clayey and sandy lithologies. The best resulting <br />material to place near the surface would be a blend of these to obtain an inter- <br />mediate loamy texture. <br />id-Base Potential. When acid-producing strata are present, generally <br />they have low pH values and should be handled in a special manner. However, if <br />the acid production is lower than the amount of lime (CaC03) present to neutra- <br />• lize such produced acid, a negative amount is obtained. However, if lime pre- <br />sent is low, then a positive amount is needed to neutralize the acid. <br />The potential hazard of acid-producing zones is the increased solubility of <br />low pN values of trace elements which may make their way into the life change <br />through the water or plants of the area. <br />Although, the lithology in Drill Hole 22C (depth 13.9-16.5) has a negative <br />amount of calcium carbonate required for neutralization, this zone should either <br />be watched carefully to ensure complete blending with other strata or buried <br />above the anticipated spoil water table and below the normal rooting depth of <br />most plant species. <br /> <br />- 83 - (Rev. 5/86) <br />