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10 0 <br /> Table <br /> Sod Vapor Extraction System Emission Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Drive,Stockton,California <br /> TPH as Gasoline Benzene <br /> Destruction Effluent Destruction <br /> Pre-Catalyst Post-Catalyst Total System Flow Effluent Concentration Emission Rate Efficiency Concentration Emission Efficiency <br /> Date Sampled Temp(°F) Temp(°F) Rate(cfm) (ppmv) (lbslday) (percent) (ppmv) Rate(lbs/day) (percent) <br /> 1/11195 748 780 100 11 042 98% 0 078 0 002 96% <br /> 219195 701 782 80 120 3 65 75% 027 0 006 95% <br /> 3128195 753 771 80 0 71 002 99% <050 0 00002 100% <br /> 414195 758 754 80 21 006 99% <050 0 00002 100% <br /> 513195 653 726 100 56 213 88% 032 0 009 97% <br /> 5115195 644 712 100 8 3 032 97% 0 051 0 002 99% <br /> 6112195 745 775 100 1 4 005 99% <050 0 00003 100% <br /> 718195 744 777 100 1 9 007 99% <050 000047 100% <br /> 8122195 740 943 100 17 0 65 98% 0 44 0 013 99% <br /> 9119195 752 838 100 5 7 0 22 99% <050 000047 100% <br /> 10/23/95 754 768 100 <50 005 100% <050 000047 100% <br /> 11/15/95 756 752 100 <50 005 100% <050 000047 100% <br /> 12/15/95 744 697 100 0 000 100% -- -- -- <br /> 1126196 745 728 100 9 6 0 36 92% - -- <br /> 2114196 750 802 100 1 004 99% — — <br /> 3127196 758 651 100 5 9 022 41% — — <br /> 10/8/96 742 643 100 0 6 002 98% — - <br /> TPH=Total Petroleum Hydrocarbons <br /> of=Cubic feet per minute <br /> ppmv=Parts per million by volumne <br /> —=Not available or not applicable <br /> Emission rates for values reported as ND are calculated using the det <br /> Sample calculations <br /> Emission rate calculation <br /> lbs/day ppm11,000,000)*C 0 ft"31min)*("M W"Ibdb-mol)*(60 minfhr)*(24 hrlday)*(Ib-mo11379 5 ft113) <br /> where 'Y is effluent concentration in ppmv <br /> "0'is the system flow rate in ft"31mm <br /> "M W' is the molecular weight in Ib/lb-moi (100 2 for TPH-G,78 1 for benzene) <br /> Destruction efficiency calculation <br /> %=((Removal rate,lb/day-Emission rate,lblday)1(Removal rate,Iblday))*100 <br /> 7G600-019-0110&M Tables As June 30, 1998 <br />