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i1 <br /> TABLE 4 <br /> ANALYTICAL RESULTS - VAPOR SAMPLES <br /> 102 S Wilson Way <br /> Stockton, California <br /> (in ag1f) <br /> ' Page 3 of 3 <br /> Date Sample TPPH B T E X best. <br /> E#f. <br /> 06/21/99 influ 176 <0 100 0.432 0.688 10.9 >92% <br /> ' Efflu <10.0 <0 100 <0-100 <0 100 <0.100 <br /> 07/19/99 Influ 212 <0 200 0 424 0.820 952 >94% <br /> Efflu <10 <0 100 <0 100 <0.100 <0.100 <br /> ' 08/23/99 Influ 170 <0 026 080 1 2 13 96% <br /> Efflu 50 014 0 024 <0 0044 0 020 <br /> ' 09/13/994 Influ 140 0.24 073 12 13 <br /> 92%2 <br /> Efflu 83 059 L 0 24 0 040 031 <br /> NOTES: <br /> ' TPPH _ Total Purgeable Petroleum Hydrocarbons (modified EPA method 8015) <br /> BTEX Benzene, Toluene, Ethylbenzene, total Xylenes (EPA method 8020) <br /> µg/f = micrograms per liter <br /> ' Dest Eff = Destruction Efficiency based on TPPH concentrations <br /> Not sampled/not calculated <br /> ' — Cross contamination suspected <br /> z -- destruction efficiency less than 95%; alternate APCD requirement of less <br /> than 2 lbs/day discharge not exceeded <br /> 3 = Effluent sample bag leaked, insufficient vapor to analyze <br /> 4 = MTBE detected in samples <br /> 1 <br /> 1 <br />