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f <br /> IU. S T L Submission 2005-05-0333 <br /> Semi-volatile analysis by GC/MS - EPA8270C <br /> fURS-San Francisco, CA <br /> Attn Erik Skov <br /> f221 Main Street#600 <br /> San Francisco, CA 94105 <br /> f Phone (415)896-5858 Fax (415)882-9261 <br /> Project 38066866 04000 Received 05/11/2005 16 41 <br /> Goodwin Procter Unifirst <br /> f <br /> Batch QC Report <br /> fPrep(s) 3510C18270C Test(s) 8270C <br /> Laboratory Control Spike Water QC Batch #2005105113-01 11 <br /> fLCS 2005105113-01 11-002 Extracted 05/13/2005 Analyzed 05/18/2005 22 49 <br /> LCSD 2005105113-01 11-003 Extracted 05/13/2005 Analyzed 05/18/2005 23 08 <br /> Compound Conc uglL Exp Conic Recovery% RPD Ctrl Limits % Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Phenol 203 180 50 406 360 120 12-89 35 <br /> f 2-Chlorophenol 349 344 50 698 688 14 23-1.34 25 <br /> 1,4-Dichlorobenzene 31 1 338 50 622 676 8 3 36-67 30 <br /> N-Nitroso-di-n-propylamme 439 371 50 878 742 16 8 10-130 34 <br /> 1,2,4-Trichlorobenzene 431 339 50 862 678 239 44-142 35 <br /> f 4-Chloro-3-methylphenol 449 382 50 898 764 161 22-147 31 <br /> Acenaphthene 449 323 50 898 646 326 56-118 36 <br /> 4-Nitrophenol 268 201 50 536 402 286 1-132 35 <br /> 2 4-Dinitrotoluene 463 367 50 926 734 2� 1 39-139 35 <br /> f Pentachlorophenol 442 430 50 884 860 28 45-125 35 <br /> Pyrene 367 395 50 734 790 73 52-115 35 <br /> Surrogates(s) <br /> f Nitrobenzene-d5 205 182 25 81 8 730 35-114 <br /> 2-Fluorobiphenyl 192 158 25 767 630 43-116 <br /> p-Terphenyl-d14 177 159 25 706 636 33-141 <br /> 2-Fluorophenol 253 249 50 506 497 25-100 <br /> f Phenol-d5 174 177 50 349 354 10-110 <br /> 2 4,6-Tribromophenol 1492 1387 50 98 4 77 4 10-123 <br /> Severn Trent Laboratories, Inc 05/19/2005 15 58 <br /> STL San Francisco"1220 Quarry Lane Pleasanton,CA 94566 <br /> A parl Df s.V.,n Twi Pic Tel 925 484 1919 Fax 925 484 1096"www sti-inc com"CA DHS ELAP#2496 Page 17 of 17 <br /> I <br />