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b` <br /> BC ANALYTICAL <br /> BATCH QC REPORT <br /> ORDER: E9102399 <br /> DATE REPORTED 02/28/91 Page 1 <br /> LABORATORY CONTROL STANDARDS <br /> DATE BATCH LC LT PERCENT <br /> PARAMETER ANALYZED NUMBER RESULT RESULT UNIT RECOVERY <br /> TPH-Volatile/BTEX <br /> Dilution Factor 02.22.91 30 1 1 Tres 100 <br /> Benzene 02.22.91 30 25 25 ug/L 100 <br /> Ethylbenzene 02.22.91 30 27 25 ug/L 108 <br /> Toluene 02.22.91 30 29 25 ug/L .116 <br /> Total Xylene Isomers 02.22.91 30 61 50 ug/L '122 <br /> C4 to C12 Hydrocarbons 02.22.91 30 440 470 ug/L 94 <br /> U c Analyftcal <br />