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STLSubmission 2005-04-0574 <br /> Volatile Organic Compounds by 8260B (Low Level) <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 04/19/2005 17 50 <br /> UniFirst Facility-Stockton <br /> Batch QC Report <br />' Prep(s) 5035 Test(s) 82608 <br /> Method Blank Soil QC Batch#2005104123-01 70 <br /> MB 2005104123-01 70-019 Date Extracted 04/23/2005 13 19 <br />' Compound Conc RL Unit Analyzed Flag <br /> 1,3,5-Trimethylbenzene ND 50 ug/Kg 04/23/2005 13 19 <br />' Vinyl acetate NO 50 ug/Kg 04/23/2005 13 19 <br /> Vinyl chloride ND 5 0 ug/Kg 04/23/2005 13 19 <br /> Total xylenes NO 50 ug/Kg 04/23/2005 13 19 <br /> lie <br /> Surrogates(s) <br /> 4-Bromofluorobenzene 1026 60-130 % 04/23/2005 13 19 <br /> 1,2-Dichloroethane-d4 988 60-140 % 04/23/2005 13 19 <br /> Toluene-d8 998 70-130 % 04/23/2005 13 19 <br /> 1 <br /> Severn Trent Laboratories, Inc 04/26/2005 15 47 <br /> STL San Francisco*1220 Quarry Lane Pleasanton CA 94566 <br /> A Pan nt Severn Trent pw Tel 925 484 1919 Fax 925 484 1 096'www stl-inc com'CA DHS ELAP#2496 Page 22 of 30 <br />