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TABLE 6 <br /> EXTRACTION AND EMISSION RATES <br /> ARCO Service Station No. 548 <br /> 1612 Hammer Lane, Stockton, California <br /> Extraction Rate from Emissions Rate to Destruction Removal Cumulative TPH <br /> Date Wells lbs/da Atmosphere lbs/da Efficiency, % Removal lbs <br /> TPH Benzene TPH Benzene TPH Benzene Period Total <br /> 09/28/00 12.70 0.047 0.094 0.001 99.3% 97.8% 12.70 12.70 <br /> 10/19/00 1 7.844 0.035 <0.04 <0.0002 1 99.5% 100% 213.96 226.66 <br /> 11/28/00 5.59 0.011 <0.037 <0.0002 99.8% 100% 223.99 450.65 <br /> 12/07/00 3.0 0.005 <0.012 <0.0001 99.86% 100% 27.96 478.61 <br /> 1/8/01 0.83 0.0005 <0.04 <0.0001 99.15% 100% 22.98 501.59 <br /> 1/23/01 0.74 X0.0001 <0.03 <0.0001 99.05% 100% 11.74 513.34 <br /> 2/6/01 6.05 <0.007 <0.03 <0.0001 99.53% X98% 47.53 560.87 <br /> 317/01 3.70 <0.007 <0.03 <0.0001 99.81% 100% 133.66 694.52 1j <br /> Air Permit Limits <br /> DRE shall be at least 95% <br /> Daily emmission rates will not exceed two lbs. VOC in any one day <br /> NC = Not calculated <br /> Sample Calculations <br /> Ext. Rate from = 70 cult x 3100 mg x 0.028 cumeter x Ib x 1,440 min <br /> Wells(lbs/day) min cu meter cult 454.000 mq day <br /> = 19.27 lbs/day <br /> Dest. Removal = 19.27-(<0.12)x 100 = 99.35% <br /> Efficiency, % 19.27 <br /> 0548 Quarterly Data Page 1 of I Delta <br />