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�© TL Submission 2005-04-0631 <br /> PCBs l(O <br /> ---URS-San Francisco, CA <br /> Attn Erik Skov <br /> 221 Main Street#600 <br /> San Francisco, CA 94105 <br /> Phone (415) 896-5858 Fax (415) 882-9261 ' <br /> Project 28066866 03000 Received 04/20/2005 16 42 <br /> Unifirst Facility-Stockton <br /> Batch QC Report <br /> Prep(s) 355018082, Test(s) 8082 ' <br /> Matrix Spike ( MS 1 MSD Soil QC Batch #2005104128-01 14 <br /> MS/MSD Lab!D 2005-04-0693 -019 <br /> MS 2005104128-01 14-004 Extracted 04/28/2005 Analyzed 04/29/2005 19 56 <br /> r r Dilution 100 <br /> MSD 2005/04/28-01 14-005 _ Extracted 04/28/2005 Analyzed 04/29/2005 2015 <br /> Dilution 1 00 <br /> Compound Conc u 1K v pk Leve ` Recove % Limas% Flags - <br /> P r <br /> MS MSD Sample ug/Kg MS MSD RPD Rec RPD MS MSD <br /> Aroclor 1016 596 566 ND 664 898 851 54 65-135 30 <br /> Arocior 1260 589 578 ND 664 887 86 9 21 65-135 30 <br /> Surrogate(s) <br /> 2 4 5 6-Tetrachloro-m-xylen 41 7 431 50 833 861 50-125 0 <br /> Decachiorobiphenyl 422 432 50 844 864 46-142 0 ' <br /> 1 <br /> s <br /> Severn Trent Laboratories, Inc 05102/200515 <br /> STL Sart Francisco`1220 Quarry Lane Pleasanton CA 94566 <br /> A W of seven Trent Pc Tel 925 484 1919 Fax 925 484 1096*www stl-inc com*CA DNS ELAP#2496 Page 6 of 6 <br />