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Table 4 <br /> Extraction and Emission Rates <br /> ARCO Service Station No. 2130 <br /> 7906 North EI Dorado Street, Stockton, California <br /> Extraction Rate from Emissions Rate to Destruction Removal Cummulative TPHG <br /> Date Wells(lb/day) Atmosphere(lb/da ) Efficiency,% Removal (lb) <br /> TPHG Benzene TPHG Benzene TPHG Benzene Period Total <br /> 7117/95 15 18 2 28 2 87 2 87 81 87 152 152 <br /> 8129195 3881 742 295 329 92 96 580 732 <br /> 9122195 3881 5 15 557 548 86 89 466 1198 <br /> 1124196 1508 206 4 11 343 97 83 121 16888 <br /> 212I196 780t 044 5 12 0 012 93 97 2184 19072 <br /> 3113196 NC NC NC NC NC NC NC 19072 <br /> 6118196 1056 002 1 0 19 0 003 98 85 866 19938 <br /> 8126196 1186 001 0 l3 0 002 99 1 80 H50 21088 <br /> NC=Not cak.ulated <br /> Macs of TPHG removed and Cumulative mass removed calculation are based on analytical <br /> results and average flow rate for the quarter <br /> Air Permit Limits <br /> RE shall be at least 95% <br /> • Daily TPHG emissions shall not exceed 48 0 Ib <br /> Daily benzene emrs.,ror�shall not exceed 0 02 Ib <br /> ample-Ca[culali!aj3s <br /> Ext.rate from wells=23 Oman x 170 mg/m'x 0 028 m3/ft3 x l lb1454,000 mg x 1,440 min/day=0 35 lb/day <br /> (lb/day) <br /> st Removal = 0.35 0.0118 x 100=96 6%n <br /> Efficiency-%) 035 <br /> Cum Extraction = 0.13 t 0.351blday x 15 days = 3 61b <br /> (]Period-lb) 2 <br /> um Extraction = 1 24+356 = 4801b <br /> Total- 1 b) <br /> I <br /> N Vls10805111406\061796M I As Rev 0 10/15/96 <br />