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STL ChromaLab Submission #- 2001-04-0459 <br /> Environmental Services(CA 1094) <br /> To Wright Environmental Services Inc Test Method 82608 1 <br /> . Attn Maria Reid Prep Method 50308 <br /> Batch QC Report <br /> Fuel Oxygenates by 82608 <br /> Laboratory Control Spike (LCS/LCSD) Soil QC Batch #2001104124-01 27 <br /> LCS 2001104124-01 27-002 Extracted 04/24/2001 12 59 Analyzed 04/24/2001 12 59 <br /> LCSD 2001104124-01 27-003 Extracted 04/24/2001 13 38 Analyzed 04124/2001 13 38 <br /> FCom­po-und --7Conc I [uglKg] �, Exp ConConc. [ug/Kg] (Recovery[%j RPD ` CtrlLimits[%] 1I Flags <br /> l LCSD LCS LCSD LCS i LCSD 1 [%] +Recovery I RPD LCS LCSD <br /> Methyl tent-butyl ether 93 1 95 4 <br /> 1000 1000 93 1 I 9541 24 65-165 1 20 ` 1 <br /> Benzene 1969 985 1000 100 0 9691 985, 16 69-129 20 I <br /> Toluene — goo ' 885 1000 1000 goo' 885, 1 7 70-130 1 20 <br /> Srurrogaic(S) 1 1 <br /> d4 ` 491 534 540 500 98 2' 106 8 81-117 <br /> 121 <br /> 1 2-0ichloroethane- <br /> 500 104 01 102 4 i $1 <br /> Toluene-d8 524 512 500 I { <br /> • <br /> 1220 Quarry Lane'Pleasanton CA 94566756 <br /> Telephone (925)484-1919'Facsimile (925)484-1096 <br /> Printed on 04/30/2001 13 27 Page 34 of 39 <br />