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STRUCTURE DETAIL FOR CONTAINMENT AREA NO. 2: <br />ELEVATION - CAPACITY -TABLE <br />Sediment Pond designed to Contain 25 -year event <br />Calculations for volume based on average end area method <br />Elev <br />End Area <br />AH <br />Vol. Vol. Cumm. Vol. <br />7580 <br />3864 <br />7581.0 <br />4662.0 <br />1 <br />4263.0 0.098 0.098 Sediment Level <br />7582 <br />5661 <br />1 <br />5161.5 0.118 0.216 <br />7584 <br />7659 <br />2 <br />13320.0 0.306 0.522 <br />7586 <br />9851.0 <br />2 <br />17510.0 0.402 0.924 <br />7588 <br />12257.0 <br />2 <br />22108.0 0.508 1.432 <br />7590 <br />14875.0 <br />2 <br />27132.0 0.623 2.055 Full Water Elevation <br />7592 <br />Top of Pond <br />"Text in blue denotes des/gned volurrres that are directly out ofAutoCad <br />*'Text /n red denotes Interpolated volumes <br />SEDIMENT POND DESIGN STORAGE SUMMARY <br />0.1 Ac -Ft Maximum Sediment Storage * ** <br />2.0 Ac -Ft Available Water Storage <br />2.1 Ac -Ft Available Pond Storage <br />* ** Sediment to be cleaned out once it reaches 60% of the maximum storage elevation of 7580.6 ft. <br />Required storage volumes based on the 25 -year event, see preceding pages <br />)IMENT POND REQUIRED STORAGE SUMMARY <br />0.1 Ac -Ft Required Sediment Storage <br />1.8 Ac -Ft Required Water Storage <br />1.9 Ac -Ft Required Pond <br />TR -65 EXH. 19(22) -4 06/15/12 <br />