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STLSubmission 2005-04-0574 <br /> Semi-volatile analysis by GC/MS - EPA8270C <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) 355013/8270C - .� Test(s) 8270C <br /> Laboratory Control Spike Soil QC Batch#2005104122-01 11 <br /> LCS 2005104122-01 11-002 Extracted 04/22/2005 Analyzed 04124120051212 <br /> LCSD 2005104122-01 11-003 Extracted 04/22/2005 Analyzed 04124120051311 <br /> Compound Conc mg/Kg Exp Conc Recovery% RPD Ctrl Limits% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Phenol 1 28 1 10 167 766 659 150 20-90 35 <br /> 2-Chlorophenol 1 17 1 '15 1 67 701 689 17 27-123 35 <br /> lie 1,4-Dichlorobenzene 1 07 1 10 167 641 659 28 28-104 30 <br /> N-Nitroso-di-n-propy lamine 141 125 167 844 749 119 25-114 39 <br /> 1,2,4-Tnchlorobenzene 1 13 123 1 67 677 737 85 38-107 35 <br /> 4-Chioro-3-methylphenol 1 37 147 1 67 820 860 7 1 26-103 33 <br /> Acenaphthene 1 42 1 22 1 67 850 731 151 49-102 30 <br /> 4-Nitrophenol 1 46 1 25 1 67 874 749 154 17-109 35 <br /> 2,4-Dinitrotoluene 1 36 1 34 1 67 814 802 1 5 39-139 38 <br />�f Pentachlorophenol 1 55 1 57 1 67 928 940 1 3 11-114 35 <br /> Pyrene 119 117 167 713 701 17 25-117 35 <br /> Surrogates(s) <br /> Nitrobenzene-d5 183 194 25 732 775 23-120 <br /> 1 2-Fluorobiphenyl 200 189 25 800 756 30-115 <br /> p-Terphenyl-d 14 191 159 25 764 636 18-137 <br /> 2-Fluorophenol 347 31 2 50 694 624 25-121 <br /> Phenol-d5 375 340 50 750 680 24-113 <br /> 2 4 6-Tnbromophenol 42 4 40 8 50 84 8 81 6 1 1 19-122 <br /> r <br /> Severn Trent Laboratories, Inc 04/26/2005 15 51 <br />' STL San Francisco'1220 Quarry Lane Pleasanton CA 94566 <br /> A 08rt Of Severn Tfe�t PIC Tel 925 484 1919 Fax 925 484 1096'www stl-ine corn"CA DHS ELAP#2496 Page 23 of 24 <br />�I <br />