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C H RO MALAR, INC. Submission #. 2000-03-0228 <br /> Environmental Services(SDB) <br /> To Wright Environmental Services Inc Test Method 8015M <br /> 8020 <br /> Attn John Lynch Prep Method 5030 <br /> Batch QC Report <br /> GasIBTEX <br /> Laboratory Control Spike (LCS/LCSD) Water QC Batch #2000103122-01 01 <br /> LCS 2000103122-01 01-002 Extracted 03/22/2000 10 40 Analyzed 03/22/2000 10 40 <br /> LCSD 2000103/22-0101-003 Extracted 03/2212000 11 15 Analyzed 03/22120001115 <br /> Compound Conc [ug/L] Exp Conc (ug/L] Recovery[%] RPD Ctrl Limits[%] Flags <br /> LCS LCSD LCS I LCSD LCS LCSD [%] Recovery I RPD LCS LCSD <br /> Gasoline 491 521 500 500 982 1042 59 75-125 20 <br /> Benzene 91 3 946 100o 1000 913 946 36 77-123 20 <br /> Toluene 89 6 93 0 1000 1000 896 930 3 7 78-122 20 <br /> Ethyl benzene 908 94 0 1000 1000 908 94 0 35 70-130 20 <br /> Xylene(s) 271 279 300 300 90 3 930 29 75-125 20 <br /> SwTogate(s) <br /> TnFluorotoluene 436 463 500 500 872 926 58-124 <br /> 4-Bromotluorobenzene-FI 439 465 500 500 878 930 50-150 <br /> • 1220 Quarry LanePleasanton,CA 94566-4756 - <br /> Telephone (925)4841919"Facsimile (925)484-1096 <br /> Printed on 03/241200017 04 Page 12 of 14 <br />