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BASELINE ENGINEERING CORP. SHEET NO. 13 OF ERR <br />Land Use Planning. Civil Design. Consultants JOB NO, co20108 <br />VOLUME CALCULATIONS FOR PHASE 2 TEMPORARY SEDIMENT POND SOUTH <br />KONIG BORROW PIT <br />DESIGNED BY: CSR FILE! drainage calcs.wb3 <br />CHECKED BY. RAS DATE: 10/16/10 <br /> <br /> Tributary Area = 10.25 acres Required Volume = 18449 cf' <br /> . <br />Offsite Area = 0.00 acres Required Volume = 0 cf <br /> (Required Volume = 1,800 cf X Area) <br />TEMPORARY SEDIMENT POND <br /> ELEV (ft) AREA(sf) AREA"(sf) VOLUME(cf) VOLUME**(cf) <br /> 5067 6800 0 0 0 <br /> 5068 7867 21981 7327 7327 <br /> 5069 8990 25267 8422 15749 <br /> 5070 10169 28720 9573 25323 <br /> USE CONIC METHOD AREA=AREAL+AREA2+(AREA1xAREA2)12 <br /> FOR POND SIZING VOLUME'=113 x depth x AREA' <br /> Elevation = 5069.3 ft DEPTH = 2.3 <br /> 1/2 Volume Depth = 5068.2 ft DEPTH = 1.2 <br /> * Note: The sediment pond is sized for the disturbed tributary area within the pit. <br /> OUTLET DETAIL CALCULATIONS <br /> A pump with a floating suction line with a flow rating of 150 gpm (0.33 cfs) will drain the full volume <br /> within the maximum allowable time of 72 hours.