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.. <br /> TABLE 4 <br /> ANALYTICAL RESULTS - VAPOR SAMPLES <br /> 102 S. Wilson Way <br /> Stockton, California <br /> (in µg/i) <br /> Page 3 of 3 <br /> Date Sample TPPH B T E X Dest. <br /> Eff. <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 9.52 >94%z <br /> Efflu < 10 <0.100 <0.100 <0.100 <0.100 <br /> 08/23/994 Influ 170 <0.026 0.80 1.2 13 96% <br /> Efflu 5.0 0.14 0.024 <0.0044 0.020 <br /> 09/13/99° Influ 140 0.24 0.73 1.2 13 92%Z <br /> Efflu 8.3 0.59 0.24 0.040 0.31 <br /> 10/18/994 Influ 160 0.32 0.73 = 1 17 97% <br /> Efflu 3.2 0.30 0.056 <0.0088 0.037 <br /> 12/28/99° Influ 75 0.16 0.52 = 8.4 <br /> 92%z <br /> Efflu 4.5 0.30 0.11 0.015 0.11 <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 /> 2 = Indicated destruction efficiency less than 95%; alternate APCD <br /> requirement of less than 2 lbs/day discharge not exceeded <br /> 3 = Effluent sample bag leaked, insufficient vapor to analyze <br /> 4 = MTBE detected in samples <br />