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CHROMALAB, INC. Submission #• 1999-08-0026 <br /> Environmental Services(SDB) <br /> To URS Greiner Woodward Clyde-Oakland Test Method 8015M <br /> 8020 <br /> Attn Al Ridley Prep Method 5030 0. <br /> Batch QC Report <br /> Volatile Hydrocarbons by 8015/8020 <br /> Laboratory Control Spike (LCS/LCSD) Soil QC Batch # 1999/08/04-0101 <br /> LCS 1999108104-01 01-002 Extracted 08/04/1999 06 52 Analyzed 08/0411999 06 52 <br /> LCSD 1999108104-01 01-003 Extracted 08/04/1999 07 45 Analyzed 08/04/1999 07 45 <br /> Compound Conc [mg/Kg] Exp Conc [mg/Kg] Recovery[%] RPD Ctrl Limits [%] ! Flags <br /> LCS LCSD LCS LCSD LCS LCSD [%] Recovery RPD LCS LCSD <br /> Gasoline 0 511 0 504 0 500 0 500 1022 1008 14 75-125 35 <br /> Benzene 00950 0 111 01000 01000 950 1110 155 77-123 35 <br /> Toluene 00960 0 111 01000 01000 960 1110 145 78-122 35 <br /> Ethyl benzene 00940 0 108 01000 01000 940 1080 139 70-130 35 <br /> Xylene(s) 0 278 0 322 0 300 0 300 927 1073 14 6 75-125 35 <br /> Surrogate(s) <br /> Tnfluorotoluene 421 620 500 500 842 1240 53-125 <br /> 4-Bromofluorobenzene-FI 414 403 500 500 828 806 58-124 <br /> 1220 Quarry Lane'Pleasanton,CA 94566-4756 <br /> Telephone {925}484-1919'Facsimile (925)484-1096 <br /> Printed on 08/27/1999 14 00 Page 31 of 37 <br />