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S T L <br /> Submission 2005-10-0232 <br /> Gas/BTEX Fuel Oxygenates by 8260B <br /> TRC Alton Geoscience- Irvine <br /> Attn Anju Farfan <br /> 21 Technology Drive <br /> Irvine, CA 92718 <br /> Phone (949) 341-7440 Fax (949)753-0111 <br /> Project 41050001 FA20 Received 10/11/20051620 <br /> Conoco Phillips#4409 <br /> Site 1502 N EI Dorado St Stockton <br /> �Batch'QC Report <br /> F:. 0wB���:e "'q 7� ,���".r�-' aE� �5 mE�x� p Yl,'e..S. -F:-.c. i..i,5 tn n a .yI:� kt � �{ £.rx•�, ..,. f iM g <br /> 3 G�OB <br /> Preps) 503 <br /> .. <br /> "t �� •lam ..r v ' u <br /> 826 <br /> E <br /> Matrix Spike(MS 1 MSD)� `� =' 9 Water, - °� QC Batch#200 511 0114-2X71 <br /> 34x� � <br /> St�Ta ad <br /> MW-5 r >>NIS, 1 5 _ d z s Lab�D h 2005-10-0232--005 - <br /> MS E W'200511 D114-2A,7t=010` _" ' �� £xtrected 10/14/2005 -��� AnalyzedF=10/1412005 20 10 � <br /> F _ <br /> DIlutiOn, 400 <br /> MSD r 2005110/14-2A 71-0137 Extracted 10/14/2005 Analyzed „ _ 10/14120Q5 20 37 <br /> € Dilution i,q, " ' `� �. 4 01 <br /> �sASe.�,.'�`— '4�- ,— _—-..:— -, , ,.,, :.,...'I <br /> Compound Conc u IL Spk Level Recovery 0 Limits% Flags <br /> MS MSD Sample u 1L MS MSD RPD Rec RPD MS MSD <br /> Methyl tert-butyl ether 300 313 211 100 890 1020 136 65-165 20 <br /> Benzene 975 100 0 671 100 968 993 25 69-129 20 <br /> Toluene 964 987 0 654 100 957 980 24 70-130 20 <br /> Surrogate(s) <br /> 1,2-Dichioroethane-d4 426 432 500 852 864 73-130 <br /> Toluene-d8 493 479 500 1986 1958 1 81-114 <br /> Severn Trent Laboratories, Inc 1x20120051• <br /> STL San Francisco'1220 Quarry Lane Pleasanton,CA 94566 <br /> A part of Sevum Trent Pie Tel 925 484 1919 Fax 925 484 1096"www stl-mc corn`CA DHS FLAP#2496 Page 19 of 21 <br />