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STLSubmission 2005-03-0930 <br /> Gas/BTEX Fuel Oxygenates by 8260B (C6-C12) 0 <br /> Cambria Environmental Emeryville <br /> Attn Cynthia Vasko <br /> 5900 Holies Street, Ste A <br /> Emeryville,_CA 94608 <br /> Phone (510)420-3344 Fax (510)420-9170 <br /> Project 247-0783-003 Received 03/30/2005 12 55 <br /> 98996184 <br /> Site 2575 Country Club Boulevard, Stockton <br /> 17-7 <br /> t <br /> Prep(s) 5030B a Tests)'826013 <br /> Matrix Spike ( MS I'MSD ) Walliler QC B"tch#2005104106-1B6i6i9 <br /> Y 5 <br /> MS/MSD Lab,117 2005-03'0884-014 <br /> MS 2005104106-1 B 69-025 Extracted 04106/2005 Analyzed 04/06/2005 13 25 <br /> Dilution loo <br /> MSD 2005104106-1B,69-044 Extracted 04/06/2005 Analyzed 04/06/2006 13 44 <br /> Dilution 'zn 1100 <br /> Compound Conc u 1L Spk Leve Recove % Limits% Fla s <br /> MS MSD Sample u /L MS MSD I RPD Rec RPD MS MSD <br /> Methyl tert-butyl ether 249 251 ND 25 996 1004 08 65-165 20 <br /> Benzene 226— 23 7 ND —25— 904— 94 8` 4 8� 69-129. _2 -- -- - <br /> Toluene 240 248 ND 25 960 99 2� 33 70-130 20 <br /> Surrogate{s) <br /> 1,2-Dichioroethane-d4 438 441 500 876 88 2 73-130 <br /> Toluene-d8 453 453 1 1 500 1906 1906 1 81-114 <br /> Severn Trent Laboratories, Inc 04/08/200514 28 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> Apert dSw mTreat Pk Tel 925 484 1919 Fax 925 484 1096'www stl-Inc com•CA DHS FLAP#2496 Page 14 of 16 <br />