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BASELINE ENGINEERING CORP. SHEET NO. 13 OF ERR <br />Land Use Planning. Civil Design. Consultants JOB NO w20108 <br />VOLUME CALCULATIONS FOR PHASE 1 TEMPORARY SEDIMENT POND NORTH <br />KONIG BORROW PIT <br />DESIGNED BY: CSR FILE: drainage ca1cs.wb3 <br />DATE: 10116110 <br />CHECKED BY: RAB <br /> <br /> Tributary Area = 10.01 acres Required Volume = 18018 cf <br /> Offsite Area = 12.39 acres Required Volume = 22302 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 /> 5062 6800 0 0 0 <br /> 5063 7867 21981 7327 7327 <br /> 5064 8990 25267 8422 15749 <br /> 5065 10169 28720 9573 25323 <br /> USE CONIC METHOD AREA=AREA,+AREA2+(AREA,xAREA2)1r2 <br /> FOR POND SIZING VOLUME'=1/3 x depth x AREA" <br /> Elevation = 5064.2 ft DEPTH = 2.2 <br /> 1/2 Volume Depth = 5063.2 ft DEPTH = 1.2 <br /> * Note: The sediment pond is sized for the disturbed tributary area within the pit. <br /> ** Note: The.required volume for the offsite tributary area, which includes off-site basin 02 and the <br /> undisturbed portion of phase 2, will be contained within the pit by a berm. <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.