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i <br /> In addition to the visual andh sical evidence P Y for horizon differentiation obtained from the <br /> backhoe pits, the organic matter content of the soil was also assayed as a further means to <br /> differentiate the surface layer. Organic matter generally decreases with depth of soil. The Ap <br /> horizon or tillage layer commonly has the highest organic matter contentf Laboratory analysis <br /> of samples of soil collected from the Ap and subsurface horizons generally confirmed this to be <br /> true. The presence of high levels of alkaline earth carbonates at some sample sites, however, <br /> resulted in inconclusive differentiation of the Ap horizon at those sites if organic matter content <br /> was used as the only basis for such differentiation. <br /> The plan for reclaiming the project to optimum, practical, agricultural productivity is presented <br /> in the following section. <br /> IF <br /> TABLE i - Recommended Depth of Soil for Stockpiling <br /> Amount of Soil to Be Conserved <br /> Soil Type <br /> FArea Depth Volume <br /> (acres) (feet) (cu�ic yards) <br /> F Zacharias gravelly clay loam (P) 267 1.0 430,760 <br /> ' " Zacharias clayloam P <br /> ( ) 47 1.0 75,827 <br /> Cortina gravelly sandy loam 23 0.0 0.0 <br /> Xerofluvents-Xerothents complex 164 0.0 0.0 <br /> TOTAL 501 - 506,587 <br /> (P) = prime farmland <br /> F <br /> F ; <br /> U <br /> i! . <br /> (TY-IIS SPACE INTENTIONALLY LEFT BLANK) <br /> i <br /> F <br /> t : <br /> 5 Report Rev.2-0620.95 <br /> r- GAGRO ENVIRONMENTAL SERVICES ■ A Division of Condor Earth Technologies, Inc. Condor <br />