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1 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 /> 4/8/2005 PID 72 35 9514 <br /> 04/08/05 C6-C12 130 3 500 9731 <br /> 04/08/05 Benzene 05 0 050 9000 <br /> ' 04/08/05 Toluene 1 0 074 9260 <br /> 04/08/05 Ethyl Benzene 1 8 0 063 9650 <br /> 04/08/05 Xylenes 34 0 900 7353 <br /> ' 05/12/05 PID 116 4 0 9655 <br /> 05/12/05 C6-C12 05 0 500 Not Calculated <br /> ' 05/12/05 Benzene 005 0 050 Not Calculated <br /> 05/12/05 Toluene 0 05 0 050 Not Calculated <br /> 05/12/05 Ethyl Benzene 005 0 050 Not Calculated <br /> ' 05/12/05 Xylenes 005 0 110 Not Calculated <br /> 06/29/05 PID 1210 4 0 9967 <br /> 06/29/05 C6-C12 05 0 500 Not Calculated <br /> 06/29/05 Benzene 012 0 050 5833 <br /> 06/29/05 Toluene 0 094 0 050 4681 <br /> 06/29/05 Ethyl Benzene 0 059 0 050 1525 <br /> ' 06/29/05 Xylenes 052 0122 7654 <br /> Notes <br /> 10 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 average concentration in ppmv based on laboratory analytical data <br /> provided in Table 4 <br /> Effluent is the average concentration in ppmv based on laboratory analytical data <br /> ' provided in Table 4 <br /> Destruction efficiency is computed as the average effluent concentration <br /> divided by the average influent concentration, expressed as % <br /> ' Where the effluent was not detected at method detection limits, the detection limit <br /> was used in the calculation <br /> 1 <br /> t <br /> 1 <br />