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mmmm STL Submission Al, 2003-02-0025 <br /> • Gas/BTEX Fuel Oxygenates by 8260B <br /> Gettler Ryan <br /> Attn Deanna Harding <br /> 6747 Sierra Court Suite J <br /> Dublin, CA 94568 <br /> Phone (925) 551-7444 Fax (925) 551-7899 <br /> Project 180238 80 Received 011311200316 00 <br /> Tosco#4409 <br /> Site 1502 N EI Dorado Street <br /> Stockton, CA <br /> a 1 z "rt: °w ¥`�` e $'a <br /> Batch QC Report a# ' i k i ""ay ^a a .w <br /> �._i•i� i w�irn�rn <br /> W ri <br /> 3E�r zx �:r`�� �" r� a ��a ax 'xa' � x}+ *5� k y¢ m s Sr aL.����R �. � �.'t(sr g ? � <br /> Prep(s) 50308 K� z �w p�r �� f � Tei', <br /> ' q*` � f 9�M <br /> Laboratory control Spike _ ` "z� Water:,_ � QC Batch#2003102110-0"1.62' <br /> �, <br /> :r� <br /> LCS�_ .2003102/10-01 62-020_ � ��� � Extracted 02110/2003 e E �� �`�, ,�Anal]IZeda 0211=003,11 20r,� <br /> LDSD� `, 2003102110-01 62-042,, �' °��Eictracte . X7.1'1012003 A �k Anal►zein 0211012003 1.4Z <br /> Compound Conc uglL Exp Conc Recovery RPD1 Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 249 257 250 996 1028 32 69-129 20 <br /> Toluene 240 245 260 960 98 0 21 70-130 20 <br /> Methyl tert-butyl ether(MTBE) 247 229 25 0 988 91 6 76 65-165 20 <br /> Surrogates(s) <br /> 1,2-Dichloroethane-d4 492 459 500 984 91 8 76-114 <br /> Toluene-d8 476 469 500 95 2 938 88-110 <br /> Severn Treat Laboratories, Inc 021121200312 42 <br /> STL San Francisco"1220 Quarry Lane,Pleasanton,CA 94566 <br /> A PM of SOWM TMM Rs Tel 925 484 1919 Fax 925 4841096'www stl-inc com'CA DHS FLAP#2496 Page 17 of 20 <br />