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STLSubmission#:2004-02-0643 ® STL Submission#:2004.02-0643 <br /> � <br /> Fuel Oxygenates by 82608 Fuel Oxygenates by 8260B <br /> H2OGeol <br /> H2OGeol <br /> Attn.:Gary Lowe Attn.:Gary Lowe <br /> PO Box 2165 PO Box 2165 <br /> Livermore,CA 94551-2165 Livermore,CA 94551-2165 <br /> Phone:(925)373-9211 Fax:( ) - Phone:(925)373-9211 Fax: <br /> Project:Nelson Ready Mix Received:02/20/2004 14:42 Project:•Nelson Ready Mix Received:02/20/2004 14:42 <br /> Site: 2059 Navy Drive,Stockton,CA Site: 2059 Navy Drive,Stockton,CA <br /> B'aYdh:f-�C Reproi3-:. , <br /> Preps) 50306.. Test(9j`62606' <br /> Method Blamlt`r Sofl Preps) 50308 Tesf(s) 825013 <br /> CC Bat'Sh;Y/2004Y/Q2'/7;M1�Oct�9 <br /> MB 2004)02/24!01 69 037 Date Ex(ragted 02/2�t2t1`,Q4 09 3f Labaftory Control-Sfiike Soti QC Batch#2UQ4/0212d-01';�J <br /> LCS 2004/02/244.1,59-666 Extracted 02/24/2004 Analyzed 02724/200403::00 <br /> Compound Conc. RL Unit Analyzed Fla [CSD 2004/07/2401 69 Q19:-, Extracted Q/2d/2004,; Analyzed 02124!2004 09:13.` <br /> Benzene ND 5.0 ug/Kg 02/24/2004 09:37 <br /> Toluene ND 5.0 ug/Kg 02/24/2004 09:37 Compound Conc. ug/Kg Exp.Conc. Recovery% RPD Ctd.Umits% Flags <br /> Ethyl benzene ND 5.0 ug/Kg 02/24/2004 09:37 LCS LCSD LCS LCSD % Rea RPD LCS LCSD <br /> Total xylenes ND 5.0 ug/Kg 02/24/2004 09:37 - Benzene 43.9 45.5 50.0 87.8 91.0 3.6 69-129 20 <br /> Surrogates(s) Toluene 45.7 46.8 50.0 91.4 93.6 2.4 70-130 20 <br /> 1,2-Dichloroethane-d4 87.4 70-121 % 0224/2004 09:37 Surrogates(s) <br /> Toluene-d8 97.2 81-117 % 0224/200409:37 1,2-Dichloroethane-d4 430 409 500 '86.0 81.8 70.121 <br /> Toluene-d8 473 486 500 94.6' 97.2 81-117 <br /> Severn Trent Laboratories,Inc. 02/27200411:56 Severn Trent Laboratories,Inc. 02127/200411:56 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94588 STL San Francisco•1220 Quarry Lane,Pleasanton,CA 94566 <br /> w wn as.Km r�.w Tel 925 484 1919 Fax 925 484 1096•www.stl-inc.com`CA DHS ELAP#2496 Page 3 of 4 ep,n Tel 925 4841919 Fax 925 4841096•www.stNnc.mm•CA DHS ELAP*2496 Page 4 of 4 <br />