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<br />CALCDLATION SHEET <br />EAST OF THE REFIISE BELT <br />Runoff Volume <br />Area = 0.54 Acres <br />CN = 90 <br />1o yr. 24 hr. Storm = 2.9 inches <br />Runoff = 1.89 inches <br />1.89 inches + 0.54 acres + 1 foot/12 inches = 0.085 Ac/ft <br />Containment Area Sizing <br />0.085 Ac/ft + 43,560 ft^2 = 3,705 Cubic feet of water <br />Acre <br />Runoff Volume 0.085 Ac/ft <br />Sediment storage <br />and Freeboard 0.267 Ac/ft <br />TOTAL =_> 0.352 AC/ft <br />The containment area will be triangular in shape with 66 feet aide <br />by 186 feet long with an average depth of 2.5 feet for a total area <br />of 15,345 cubic feet. If topographical conditions are not suitable <br />for this configuration the pond will be configured to hold at least <br />0.2 Ac/ft as a minimum. <br />Ditch Sizing <br />All runoff that enters this pond is from direct runoff down the <br />side elopes and from direct precipitation. Ditches are not required <br />or present for this small area eaimtion. <br />