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MATRIX ENVIRONMENTAL LABORATORIES <br /> ANALYSIS: Volatile Organic Analytes EPA Method 8240 <br /> COC No 3649 Date of Analysis 12/09/92 <br /> Lab ID LCS/D Matrix WATER <br /> File L0904.D <br /> LABORATORY CONTROL SPIKE <br /> LCS % LCSD % <br /> COMPOUND LEVEL AMNT RCVRY AMNT RCVRY RPD <br /> ug/Kg ug/Kg ug/Kg <br /> (ppb) (ppb) (ppb) <br /> 1,1-dlchloroethene 500 31 33 6266 3420 6840 876 <br /> benzene 50 0 4398 8796 4334 8668 147 <br /> chlorobenzene 500 4306 8612 4276 8552 070 <br /> toluene 500 4256 8512 4426 8852 3 92 <br /> trichloroethene 500 4623 9246 4747 94 94 265 <br /> % RECOVERY RANGE = 50-150 <br /> RPD RANGE = 0- 25 <br /> LCS = LABORATORY CONTROL SPIKE <br /> LCSD = LABORATORY CONTROL SPIKE DUPLICATE <br /> r�nr% aERrFNT nFVIATION <br /> 3017 KILGORE ROAD# 100 • RANCHO CORDOVA, CA 95742 PHONE (916) 635-3962 • FAX (916) 635-9331 <br />