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C H RO MALAB, INC. Submission #• 2000-10-0435 <br /> Environmental Services(SDB) <br /> To Wright Environmental Services Inc Test Method 8015M <br /> 8020 <br /> Attn Mana Recd Prep Method 5030 <br /> Batch QC Report <br /> GasIBTEX <br /> Laboratory Control Spike(LCS/LCSD) Water QC Batch#2000/10127-0102 <br /> LCS 2000190127-01 02-002 Extracted 10/27/2000 04 23 Analyzed 10/27/2000 04 23 <br /> LCSD 2000110127-01 02-003 Extracted 10/27/2000 04 54 Analyzed 10/27/2000 04 54 <br /> Compound Conc [ug/L] Exp Conc [ug/L] Recovery[%]I RPD Ctrl Limits[%] I Flags <br /> LCS I LCSD LCS LCSD LCS LCSD Recovery RPD LCS LCSD <br /> Gasoline 522 513 500 500 1044 1026 17 75-125 20 <br /> Benzene 111 104 1000 1000 1110 1040 65 77-123 20 <br /> Toluene 107 988 1000 1000 1070 968 80 78-122 20 <br /> Ethyl benzene 98 6 925 1000 1000 986 92 5 64 70-130 20 <br /> Xylene(s) 284 266 300 300 947 887 65 75-125 20 <br /> Surrogate(s) <br /> Trifluorotoiuene 473 427 500 500 946 854 58-124 <br /> 4-Bromofluorobenzene-FI 458 445 500 500 916 890 50-150 <br /> I i i <br /> 1220 Quarry LanePleasanton CA 94566-4756 <br /> Telephone (925)484-1919'Facsimile (925)484-1096 <br /> Pnnted on 10130/2000 12 02 Page 6 of 6 <br />