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STL4 Submission 2005-04-0574 <br /> I <br /> Oil & Grease (Total) by EPA 1664A <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 /> Protect 28066866 03000 Received 04/19/2005 17 50 <br /> UniFirst Facility-Stockton <br /> Batch QC Report <br /> Prep(s) 1664A Test(s) 1664A <br /> Matrix Spike ( MS 1 MSD ) Soil QC Batch#2005!04/25-01 23 <br /> MW-4-30 » MS Lab ID 2005-04-0574 -006 <br /> MS 2005104125-01 23-004 Extracted 04/25/2005 Analyzed 0412612005 16 20 <br /> Dilution 100 <br /> MSD Analyzed <br /> Dilution _. <br /> Compound Conc mglKg pk Level Recovery% Limits% Fla s <br /> MS MSD Sample mg/Kg MS MSD RPD Rec RPD MS MSD <br /> Oil&Grease(total) 654 ND 800 818 79-114 18 <br /> r <br /> Severn Trent Laboratories, Inc 04!271200512 <br /> STL San Francisco'1220 quarry Lane Pleasanton CA 94566 <br /> A mn of Severn Trent P,c Tel 925 4154 1919 Fax 925 484 1096"www stl-inc corn•CA DHS ELAP#2496 Page 10 of 10 <br />