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STL ChromaLab Submission #: 2001-08-0190 <br /> Environmental Services(CA 4094) <br /> To: CH211 Hill-Oakland Test Method: 8015M <br /> Attn: Keith Sheets Prep Method: 5030 <br /> Batch QC Report <br /> Gas/BTEX by 8015M18021 <br /> Laboratory Control Spike(LCSILCSD) Water QC Batch#2001108116-01.03 <br /> LCS: 2001108116-01.03-006 Extracted: 081161200109:30 Analyzed 08/161200109:30 <br /> LCSD: 2001108116-01.03-007 Extracted: 081161200110:00 Analyzed 08116/200110:00 <br /> Compound Cana (ug/L] Exp.Conc. [ug/L] Recovery[%] RPD Ctri.Limits(%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD l%] Recovery RPD LCS LCSD <br /> Gasoline 499 515 500 500 99.8 103.0 3.2 75-125 20 <br /> Surrogate(s) <br /> 4-Bromofluorobenzene-FI 447 461 500 500 89.4 92.2 50-150 <br /> i <br /> l <br /> I . <br /> 1 . <br /> I . <br /> 1220 Quarry Lane"Pleasanton,CA 94566-4756 <br /> Telephone:(925)484-1919`Facsimile:(925)484-1096 <br /> Printed on:08/28/2001 10:00 Page 7 of 9 <br />