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U <br />11 <br />L <br />[File] <br />Version 6/13/01 <br />DEPTH OF SOIL LOSS CALCULATION <br />DATE 06/12/01 <br />CALC BY ACR <br />JOB Forward Landfill <br />Watershed 2 <br />CRITERIA <br />AVERAGE SOIL LOSS (TONS/ACRE/YR) <br />0.8 <br />DENSITY OF SILT (LBS/CF) <br />100 <br />AREA OF LANDFILL TO BE COVERED (AC) <br />156.3 <br />NUMBER OF YEARS <br />30 <br />TOTAL DEPTH OF FINAL COVER (INCHES) <br />12 <br />AVERAGE ANNUAL SOIL LOSS DEPTH <br />TONNAGE 122.4 <br />VOLUME OF SOIL LOSS (CY) 90.6 <br />DEPTH OF SOIL LOSS (INCHES) 4.31 E-03 <br />TOTAL DEPTH OVER 30 -YEARS <br />TONNAGE 3,671 <br />VOLUME OF SOIL LOSS (CY) 2,719 <br />DEPTH OF SOIL LOSS (INCHES) 0.13 <br />Ratio of Soil Loss to Final Cover (percent) 1.1% <br />BRYAN A. STIRRAT & ASSOCIATES <br />