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<br /> TOPSOIL INVENTORY BY MINING AREA <br /> MINING AREA NO. 1 <br /> North Area <br />MAP UNIT AREA AVE THICKNESS VOLUME <br /> ACRES INCHES ACRE FT <br />1 15.49 12.8 16.5 <br />2 42.74 8.6 30.8 <br />3 22.91 8.8 16.8 <br />1B 22.93 13.0 24.8 <br />4 3.90 22.9 7.4 <br />TOTALS 107.97 96.3 <br />AVERAGE 10.7 <br /> MINING AREA NO. 2 <br /> South Area <br />MAP UNIT AREA AVE THICKNESS VOLUME <br /> ACRES INCHES ACRE FT <br />1 56.09 23.1 107.9 <br />2 30.60 12.5 31.8 <br />3 5.10 13.9 5.9 <br />1B 54.63 23.3 106.2 <br />4 1.40 65.9 7.7 <br />TOTALS 147.82 259.5 <br />AVERAGE 21.1 <br />SOILINV.WK1 <br />7-8 <br />May 1991