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' TABLE 7 <br /> DESTRUCTION EFFICIENCY CALCULATIONS <br /> Farmer Property, 610 Hunter Street, Stockton, CA <br /> Page 1 of 1 <br /> ' Date Analyte Influent Effluent Efficiency% <br /> 01/24106 PID 20 1 0 9500 <br /> —61/241-06 C4-C14 64 Oil 9828 <br /> 01/24/06 Benzene 0 073 0 050 3151 <br /> ' 01/24/06 Toluene 045 0 050 8889 <br /> 01/24/06 Ethyl Benzene Oil 0 050 5455 <br /> 01/24/06 Xylenes 038 0 050 8684 <br /> ' 02/23/06 PID NS NS System Down <br /> 02/23/06 C6-C12 NS NS System Down <br /> ' 02/23/06 Benzene NS NS System Down <br /> 02/23/06 Toluene NS NS System Down <br /> 02/23/06 Ethyl Benzene NS NS System Down <br /> 02/23/06 Xylenes NS NS System Down <br /> 03/23/06 PID 156 1 1 9295 <br /> 03/23/06 C6-C12 41 17 5854 <br /> ' 03/23/06 Benzene 097 0 050 9485 <br /> 03/23/06 Toluene 095 018 81 05 <br /> 03/23/06 Ethyl Benzene 1 7 0 054 9682 <br /> ' 03/23/06 Xylenes 114 0 52 9544 <br /> Notes <br /> C4-C14 denotes total volatile organics and is the equivalent to TPHG <br /> C6-C12 denotes gross range organics and is the equivalent to TPHG <br /> ' MTBE denotes methyl tertiary butyl ether <br /> PID denotes concentration detected by a photo-ionization detector field instrumentation <br /> Influent is the concentration in ppmv based on laboratory analytical data <br /> provided in Table 4 <br /> ' Effluent is the concentration in ppmv based on laboratory analytical data <br /> provided in Table 4 <br /> Destruction efficiency is computed as the effluent concentration <br /> ' divided by the influent concentration, expressed as a percentage <br /> Where the effluent was not detected at method detection limits, the detection limit <br /> was used in the calculation <br /> 1 <br />