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91"1 r7mw Submission 2005-03-0925 ' <br /> Gas/BTEX Compounds by 8015M/8021 <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 03/25/2005 17 23 <br /> Conoco Phillips#6981 <br /> Site 4707 Pacific Ave <br /> Batch QC Report <br /> Prep(s) 5030 Test(s) 8015M <br /> i <br /> Laboratory Control Spike Water QC Batch#2005104106-01 05 <br /> LCS 2005/04/06-01 05-007 Extracted 04/06/2005 Analyzed 04/06/2005 10 45 <br /> LCSD <br /> Compound Cone ug/L Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS I LCSD <br /> GRO(C6-C12) 238 250 952 75-125 20 <br /> Surrogates(s) <br /> 4-Sromofluorobenzene-FID 487 500 1974 50-150 0 <br /> I <br /> Severn Trent Laboratories, Inc 04/081200514 22* <br /> STL San Francisco*1220 Quarry Lane Pleasanton CA 94566 <br /> ApeM1.1 S. m 1.nL Plc Tel 925 484 1919 Fax 925 484 1096*www stl-inc corn`CA DHS ELAP#2496 Page 21 of 26 <br />