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TABLE 6 <br /> EXTRACTION AND EMISSION RATES <br /> Former 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/day) 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 7.844 0.035 <0.04 <0.0002 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 99.8% 100% 27.96 478.61 <br /> 118/01 0.83 0.0005 <0.04 <0.0001 99.15% 100% 22.98 501.59 <br /> 1123101 0.74 <0.0001 <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 /> 3/7101 3.70 <0.007 <0.03 <0.0001 99.81% 100% 133.66 694.52 <br /> 4123101 4.75 <0.001 <0.03 <0.0001 99.37% X90% 107.58 802.10 <br /> 614101 0.78 <0.0035 <0.035 <0.0003 95.52% X91.42% 60.00 862.10 <br /> 7123101 0.08 0.0003 <0.035 <0.0002 54.91% 38.80% 18.60 880.70 <br /> 8/6101 0.06 <0.0002 <0.035 <0.0002 1 40.29% 1 100% 0.95 1 881.65 <br /> 915101 4.97 1 <0.01 <0.05 <0.0002 1 98.996/. 99.60% 148.79 1 1030.43 <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 cuft 454,000 ma day <br /> 19.27 lbs/day <br /> Dest. Removal = 19.27- <O.12 x 100= 99.35% <br /> Efficiency, % 19.27 <br /> Arco_0548_Quarter1y_0&M-XLS Page 1 of 1 Delta <br />