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NOV 93-066 <br />Terror Creek Co. <br />CONE <br />V= 1/3 Y r2 h <br />= 1/3(3.14)(100)2(30) <br />=314,159 cuft <br />.: 27 <br />=11,635.5 cuyd <br />x 1700 lbs %2000 lbs <br />=9,890 tons <br />PARABOLOID <br />V= ~ ,j rZ h <br />Page 2 <br />_ 'x(3.14)(100)2(30) <br />= 471,238 cuft <br />~27 <br />=17,453 cuyd <br />x 1700 lbs = 2000 lbs <br />=14,835 tons <br />Another method for determining volume utilized the program STORM. <br />The formula that was used, was the area of a trapezoid base <br />multiplied by the height to obtain the volume of the pile. The <br />area was obtained by digitizing the approximate shape of the pile. <br />2 <br />= 22500 + 5300 (30) <br />2 <br />=417,000 cuft <br />.: 2 7 <br />=15,444 cuyd <br />x 1700 lbs - 2000 lbs /f~~ <br />=13,127 tons (L~ <br />I determined that a cone shape did not accurately represent the <br />pile, so this volume estimate was eliminated. So based on my <br />measurements in the field, the fine coal pile was between 13,127 <br />and 14,835 tons, which far exceeds the maximum amount specified in <br />the Air Emissions Permit of 8,000 tons. <br />V= Al + A2_ / hl <br />059.066 <br />