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I <br /> TABLE b <br /> EXTRACTION AND EMISSION RATES <br /> ARCO Service Station No.548 <br /> 1612 Hammer Lane,Stockton,California <br /> I <br /> Extraction Rate from Emissions Rate to Destruction Removal Cumulative TPH <br /> Date Wells lbs/day) 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 1 7.844 0.035 <0.04 <0.0002 99.5% 100% 213.96 226.66 <br /> 11/28/00 5.59 0.011 10.037 <0.0002 99.8% 100% 223.99 450.65 <br /> 12/07/00 3.0 0.005 <0.012 <0.0001 99.8% 100% 27.96 476.61 <br /> 1/8/2001 0.83 0.0005 <0.04 <0.0001 99.15% 100% 22.98 501.59 <br /> 1/23/2001 0.74 <0.0001 <0.03 <0.0001 99.05% 100% 11.74 513.34 <br /> 2/6/2001 6.05 <0.007 <0.03 <0.0001 99.53% >98% 47.53 560.87 <br /> 3/7/2001 3.70 <0.007 <0.03 <0.0001 99.81% 100% 133.66 694.52 <br /> 4/23/2001 4.75 <0.001 <0.03 <0.0001 99.37% >90% 107.58 1 802.10 <br /> 6/4/2001 0.78 <0.0035 <0.035 <0.0003 95.52% >91.42% 60.00 862.10 <br /> 7/23/2001 0.08 0.0003 <0.035 <0.0002 54.91% 38.80% 18.60 880.70 <br /> 8/6/2001 1 0.06 <0.0002 <0.035 <OA002 40.29% 100% 0.95 881.65 <br /> 9/5/2001 4.97 <0.01 <0.05 <0.0002 98.99% 99.60% 148.79 1030.43 <br /> 10/1/2001 3.064 <0.002 <0.044 <0.0002 >98.6 >90.0 104.65 1135.09 <br /> 11/5/2001 5.009 0.004 <0.053 <0.0003 >98.9 >93.0 141.44 1276.53 <br /> 1/8/2002 4.796 0.003 <0.040 <0.0002 >99.2 >93.0 20.22 1296.75 <br /> 2/4/2002 2.398 <0.010 <0.040 <0.0002 >98.3 >98.0 86.47 1383.23 <br /> 3/4/2002 2.380 0.006 <0.036 <0.0002 >98.5 >97.2 66.39 1449.62 <br /> 4/1/2002 1.243 <0.0018 <0.036 <0.0002 >97.1 >90.0 40.46 1 1490.08 <br /> 6/24/2002 0.938 10.0002 <0.039 <0.0002 >95.8 100% 55.91 1545.99 <br /> 7/16/2002 0.309 <0.0002 <0.039 <0.0002 >87.3 100% 21.82 1567.81 <br /> 8/27/2002 0.599 <0.0020 <0.040 <0.0002 >93.3 >90.0 23.15 1590.97 <br /> 9/24/2002 1.479 <0.0040 <0.040 1 <0.0002 1 >97.3 >95.0 1 54.03 1 1645.00 <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 /> Sam le Calculations <br /> Ext.Rate from= 70 cult x 3100 ma x 0.028 cumeter x lb x 1,440 min <br /> Wells(lbs/day) min cu meter tuft 454,000 mo day <br /> = 19.27 lbs/day <br /> Dest.Removal= 19.27-(<0.12)x 100=99.35% <br /> Efficiency,% 19.27 <br /> Arco_0548_Quarterly_o&M-3Q.XLS Page t of 1 <br />