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Submission bmissron #• 2001-04-0530 <br /> ST L C h ro m a La b <br /> Environmental Services(CA 1094) <br /> To Wright Environmental Services Inc Test Method 8020 <br /> Attn Mana Reid Prep Method 5030 <br /> Batch QC Report <br /> Gas/BTEX <br /> Laboratory Control Spike (LCSILCSD) Water QC Batch #2001104125-01 03 <br /> LCS 2001104125-01 03-005 Extracted 04/2512001 09 49 Analyzed 04/25/2001 09 49 <br /> LCSD 2001/04125-01 03-006 Extracted 04/25/2001 10 20 Analyzed 04/25/2001 10 20 <br /> Compound Conc [ug/L] Exp Conc [ug/L] Recovery[%] RPD Ctrl Limits[%] Flags <br /> LCS I LCSD LCS LCSD LCS LCSD [%] Recovery RFD LCS LCSD <br /> Benzene 101 96 0 1000 1000 1010 960 5 1 77-123 20 <br /> Toluene 101 958 1000 1000 1010 958 53 78-422 20 <br /> Ethyl benzene 101 960 1000 1000 1010 960 5 1 70-130 20 <br /> Xylenes) 297 285 300 300 990 950 41 75-125 20 <br /> Surrogates) <br /> Tnfluorotoluene 576 538 500 500 1152 1076 58-124 <br /> i <br /> I <br /> 1220 Quarry Lane"Pleasanton CA 94566-4756 <br /> Telephone (925)484-1919'Facsimile (925)484-1096 <br /> Printed on 05/02/2001 16 51 Page 13 of 19 <br />