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1 <br /> I <br /> 1 STL Submission 2005-04-0631 <br /> • Oil & Grease (Total) by EPA 1664A <br />' URS-San Francisco, CA <br /> Attn Erik Skov <br /> 1 221 Main Street#600 <br /> San Francisco, CA 94105 <br /> Phone (415) 896-5858 Fax (415) 882-9261 <br /> 1 Project 28066866 03000 Received 04/20/2005 16 42 <br /> Unifirst Facility-Stockton <br /> 1 <br /> Batch QC Report <br /> 1 Prep(s) 1664A Test(s) 1664A <br /> Laboratory Control Spike Soil QC Batch#2005/04125-01 23 <br /> 1 LCS 2005/04/25-01 23-002 Extracted 04/25/2005 Analyzed 04/26/2005 16 20 <br /> LCSD 2005/04/25-01 23-003 Extracted 04/25/2005 Analyzed 04/26/2005 16 20 <br /> 1 Compound Conc mg/Kg Exp Conc I Recovery% RPDJ Ctrl Limits% Flags <br /> LCS LCSD LCS I LCSD % I Rec I RPD LCS LCSD <br /> Oil&Grease(total) 774 789 800 97 0 1986 1 6 1 79-114 18 <br /> Ile <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> 1 <br /> I <br /> 1 • Severn Trent Laboratories, Inc 04128/200516 56 <br /> STL San Francisco'1220 Quarry Lane Pleasanton CA 94566 <br /> A part of Severn Tient Pic Tel 925 484 1919 Fax 925 484 1096'www sti-inc corn'CA DHS FLAP#2496 Page 5 of 5 <br /> 1 <br />