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From:Chroma_Fax To:Steve Shih Date:10/24/03 Time:4:31:48 PM Fax Page 8 of 16 <br /> ® S T L Submission M 2003-10-0741 <br /> Fuel Oxygenates by 82608 <br /> Nor-Cal Construction <br /> Ann.:Don Jones <br /> 69 West Kentucky Avenue <br /> Woodland,CA 95695 <br /> Phone:(916)761-1137 Fax: ( ) - <br /> Project Received: 10/21/2003 13:40 <br /> Batch QC Report <br /> Prep(s): 50308 Test(s) 82606 <br /> Laboratory Control Spike Soil QC Batch 4 2003110121-01.66 <br /> LCS 2003/10/21-01.66-038 Extracted: 10/21/2003 Analyzed: l0/211200309:38 <br /> LCSD 2003/10121-01.66-002 Extracted; 10/21/2003 Analyzed: l0/21/200310:02 <br /> Compound Conc. ug/Kg Exp.Conc. Recovery% RPD Ctd.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. RPO LCS LCSD <br /> Methyl ten-butyl ether(MTBE) 38.9 39.9 50.0 77.8 79.8 2.5 65-165 20 <br /> Benzene 37.3 37.5 50.0 74.6 75.0 0.5 69-129 20 <br /> Toluene 42.3 43.4 50.0 84.6 86.8 2.6 70-130 20 <br /> Surrogates(s) <br /> 1,2-Dichlomethane-d4 465 462 500 93.0 92.4 70-121 <br /> Toluene-d8 519 531 500 103.6 106.2 81-117 <br /> Severn Trent Laboratories, Inc. 10122000310:21 <br /> STL San Francisco'1220 Query Lane,Pleasanton,CA 94566 <br /> Tel 925 484 1919 Fax 925 464 1096'w .stHinc.com'CA DHS ELAPB 2496 Page 4 of 4 <br />