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i , 1 <br /> l' 4 <br /> F <br /> Submission 2005.04-0574 <br /> W tam STL st <br /> PCBs <br /> - -- --URS-San Francisco, CA---- - - - -�- - -- - - -- -- - - -- -- ' <br /> Attn Erik Skov <br /> 211 main Street#600 <br /> San Francisco, CA 94105 fi <br /> Phone (415) 896-5858 Fax (415) 882-9261 <br /> Project 28066866 03000 Received 04/19/20051750 F <br /> UniFirst Facility-Stockton <br /> Batch QC Re ort <br /> Prep(s) 3550/8082 Test(s) 8082 ' <br /> Laboratory Control Spike Soil _ QC Batch#2005104122-01 14 <br /> LCS 2005104122-01 14-002 Extracted 04122/2005 Analyzed 04/24/2005 16 33 i <br /> LCSD 2005104122-01 14-003 Extracted 04/22/2005 Analyzed 04/24/2005 16 53 <br /> Compound Conc ug/Kg Exp Conc Recovery% JRPD Ctrl U its %I Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Aroclor 1016, 541 567 666 812 851 47 65-135 30 <br /> Aroclor 1260 570 595 666. 856 893 42 65-135 30 <br /> Surrogates(s) _ _ _ <br /> 2,4,5,6-Tetrachioro-m-xy1ene 397 41 6 50 79-4 832 50-125 0 <br /> Decachlorobiphenyl 409 41 5 50 81 9 830 46-142 0 <br /> ` i A <br /> i <br /> r ' <br /> Severn Trent Laboratories, Inc 04/26/2005 18 <br /> STL San Francisco'1220 Quarry Lane Pleasanton CA 94566 <br /> A part of Severn Trent Plc Tel 925 484 1919 Fax 925 484 1096'www stl inc corn"CA DHS FLAP*2496 Page 9 of 10 <br />