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I <br /> C H RO MALAB, INC. Submission #• 2000-07-0428 <br /> Environmental Services(SOB) <br /> • To Wright Environmental Services Inc Test Method 8020 <br /> 8015M <br /> Attn Chris Palmer Prep Method 5030 <br /> Batch QC Report <br /> Gas/BTEX <br /> Laboratory Control Spike (LCS/LCSD) Soil QC Batch#2000107128-01 04 <br /> LCS 2000/07128-01 04-002 Extracted 07/28/2000 06 21 Analyzed 07/28/2000 06 21 <br /> LCSD 2000107/28-01 04-003 Extracted 07/28/2000 06 49 Analyzed 07/28/2000 06 49 <br /> Compound Cane [mg/Kg] Exp Cone [mg/Kg lRecovery[%] RPD Ctri Limits[%] I Flags <br /> LCS I LCSD LCS LCSD LCS LCSD [%] Recovery RPD LCS LCSD <br /> Gasoline 0 510 0 524 0 500 0 500 1020 1048 27' 75-125 35 <br /> Benzene 00895 00829 0 1000 01000 895 829 77 77-123 35 <br /> Toluene 00917 00848 01000 01000 917 848 78 78-122 35 <br /> Ethyl benzene 00910 00849 01000 01000 910 849 69 70-130 35 <br /> Xylene(s) 0 264 0 247 0 300 0 300 880 82 3 67 75-125 35 <br /> Surrogate(s) <br /> Tnfluorotoluene 465 430 500 500 930 86 0 53-125 <br /> 4-8romofluorobenzene-FI 317 324 500 500 634 64 8 58-124 <br /> 1220 Quarry Lane'Pleasanton CA 94566-4756 <br /> Telephone (925)484-1919"Facsimile (925)484-1096 <br /> Pnnted on 08/03/2000 10 55 Page 13 of 13 <br />