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C H ROMALAB, INC. Submission # 2000-03-0229 <br /> Environmental Services(SOB) <br /> To Wright Environmental Services Inc Test Method 8015M <br /> 8020 <br /> Attn John Lynch Prep Method 5030 <br /> Batch QC Report <br /> Gas/BTEX <br /> Laboratory Control Spike (LCSILCSD) Soil QC Batch#2000103114-01 04 <br /> LCS 2000103/14-01 04-002 Extracted 03/14/2000 06 15 Analyzed 03/14/2000 06 15 <br /> LCSD 2000/03/14-01 04-003 Extracted 03/14/2000 06 43 Analyzed 03/14/2000 06 43 <br /> Compound Conc [mg/Kg] Exp Conc [mg/Kg] Recovery[%]I RPD CtH Limits [%] f Flags <br /> LCS I LCSD LCS LCSD LCS I LCSD [%3 Recovery RPD LCS LCSD <br /> Gasoline 0 454 0 437 0 500 0 500 908 874 38 75-125 35 <br /> Benzene 00898 00810 01000 01000 898 810 103 77-123 35 <br /> Toluene 00884 00795 01000 01000 884 795 106 78-122 35 <br /> Ethyl benzene 00870 00793 01000 01000 870 793 9 3 70-130 35 <br /> Xylene(s) 0 262 0 241 0 300 0 300 87 3 803 8 4 75-125 35 <br /> Surrogate(s) <br /> Tnfluorotoluene 414 365 500 500 828 730 53-125 <br /> 4-Bromofluorobenzene-FI 453 476 500 500 906 952 58-124 <br /> 3 <br /> • <br /> • <br /> 1220 Quarry Lane'Pleasanton CA 94566-4756 <br /> Telephone (925)484-1919'Facsimile (925)484-1096 <br /> Printed on 03/23/2000 1148 Page 13 of 15 <br />