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Table 2. Soil Vapor Extraction and Treatment System Effluent Data <br /> ARCO Station 2093,Tracy, CA <br /> I PH asaso the enzene <br /> Effluent Destruction Effluent Em ssion Destruction <br /> Pre-Catalyst Post-Catalyst Manifold Flow Total System Concentration Emission Rate Efficiency Concentration Rate Efficiency <br /> Date Temp(°F) Temp CF) Rate(cfm) Flow Rate(cfm) (ppmv) (lbs/day) (percent) (ppmv) (Ibs/day) (percent) <br /> 1/4/96 608 870 95 95 34 121 98% <br /> 1/26196 655 856 95 95 473 168 95% -- -- -- <br /> 2/26/96 590 904 45 75 25 070 96% - -- <br /> 3127196 547 910 45 75 25 070 96% -- -- .. <br /> 4115/96 67I 895 47 74 3 7 0 10 99% -- -- -. <br /> 5/2/96 650 902 58 76 37 Oil 99% -- -- .. <br /> 5/15/96 648 905 43 60 13 2 030 98% -- -- -- <br /> 6/3/96 650 902 36 63 1 2 003 100% -- -- __ <br /> 6/21/96 609 850 45 70 78 020 99% -- -- __ <br /> 7110/96 627 901 47 65 114 028 98% <br /> 8/12/96 650 878 62 68 81 206 92% -- -- -- <br /> 9/16/96 696 832 72 80 14 5 043 98% -- -- ._ <br /> 10/8/96 659 832 36 60 4 009 99% -- -- -- <br /> 11/5/96 791 852 46 60 0 000 100% -- -- -- <br /> 12/20/96 732 778 49 63 1 8 004 97% -- -- __ <br /> 1/13/97 787 798 49 60 0 000 100% -- -- -- <br /> 6/18/97 787 798 23 45 12 002 100% -- -- -- <br /> 7/24/97 604 677 43 60 01 000 100% -- -- _. <br /> 8/28/97 726 856 60 60 85 0 19 96% -- <br /> 9/10197 785 845 60 60 7 016 96% <br /> TPH-Total Petroleum Hydrocarbons <br /> cfm=cubic Feet per minute <br /> ppmv-parts per million by volume <br /> ---Not available or not applicable <br /> Sample Calculations <br /> Mass emission rate calculation <br /> lbs/day=("x"ppm)*(1 E-6)*(molecular weight lb/lb-mol)*("y"cubic feet/min)* (24 hr/day)*(60 mm/hr)*([b-mol/380 cubic feet) <br /> where"x"is cffluent concentration in ppm and"y"is the flow rate,cfm <br /> Destruction efficiency calculation <br /> %_((Mass extraction rate lb/day-Mass emission rate lb/day)1(Mass extraction rate lb/day))*100 <br /> (E;ARC05MlworkoopyV9akVes2093 xfw) <br />