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BC ANALYTICAL <br /> BATCH QC REPORT <br /> ORDER: E9207018 <br /> DATE REPORTED 07/21/92 Page 1 <br /> MATRIX QC ACCURACY (SPIKES) <br /> DATE BATCH SBAR TRUE RBAR PERCENT <br /> PARAMETER ANALYZED NUMBER RESULT RESULT RESULT UNIT RECOVERY <br /> Lead 07.07.92 92218 0.03 0.029 0.004 mg/L 104 <br /> Lead 07.07.92 92218 49 49 24 ug/L 100 <br /> Aromatic Hydrocarbons <br /> Benzene 07.09.92 92196 19 20 <0.5 ug/L 95 <br /> Ethylbenzene 07.09.92 92196 18.5 20 <0.5 ug/L 93 <br /> Toluene 07.09.92 92196 19 20 <0.5 ug/L 95 <br /> Total Xylene Isomers 07.09.92 92196 59 60 <0.5 ug/L 98 <br /> TPH -- Volatile Hydrocarbons <br /> C6 to C14 (as gasoline) 07.09.92 92196 235 220 <50 ug/L 107 <br /> Aromatic Hydrocarbons <br /> Benzene 07.08.92 92195 18 20 <0.5 ug/L 90 <br /> Ethylbenzene 07.08.92 92195 18 20 <0.5 ug/L 90 <br /> Toluene 07.08.92 92195 18.5 21 0.8 ug/L 88 <br /> Total Xylene Isomers 07.08.92 92195 57.5 61 1.2 ug/L 94 <br /> TPH - Volatile Hydrocarbons <br /> C6 to C14 (as gasoline) 07.08.92 92195 215 220 <50 ug/L 98 <br /> Lead 07.13.92 92220 0.0245 0.025 <0.002 mg/L 98 <br /> ad 07.13.92 92220 0.0235 0.025 <0.002 mg/L 94 <br /> B C Analytical <br />