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i <br /> d 0 � ly J Iii <br /> TL <br /> Submission:2005-04-0633 <br /> ®® <br /> Semi-volatile analysis by GC/MS - EPA8270C <br /> Treadwell&Rollo-San Francisco <br /> Attn.: David Dixon <br /> 555 Montgomery Street. Suite.1300 <br /> San Francisco, CA 94111-2554 <br /> Phone: (415)955-9040 Fax: (415)955-9041 <br /> Project: 2597.10 Received: 04/20/2005 14:00 <br /> Carando <br /> Batch QC Report <br /> Prep(s): 3510C/8270C Test(s): 8270C <br /> Laboratory Control Spike Water QC Batch#2005/04/21-01.11 <br /> LCS 2005/04/21-01.11-002 Extracted: 04/21/2005 Analyzed:04/23/200516:47 <br /> LCSD 2005/04/21-01.11-003 Extracted: 04/21/2005 Analyzed:04/23/200517:_14 <br /> Compound Conc. ug/L Exp.Conc. Recovery% RPD CtrI.Limits% Flags <br /> LCS LCSD LCS LCSD % Rec. I RPD LCS LCSD <br /> Phenol 16.5 16.3 50 33.0 32.6 1.2 12-89 35 <br /> 2-Chlorophenol 33.2 34.7 50 66.4 69.4 4.4 23-134 25 <br /> 1,4-Dichlorobenzene 27.5 29.5 . 50 55.0 59.0 7.0 36-97 30 <br /> N-Nitroso-di-n-propylamine - 36.2 41.0 50 72.4 82.0 12.4 10-130 34 <br /> 1,2,4-Trichlorobenzene 33.4 33:0 50 66.8 66.0 1.2 44-142 35 <br /> 4-Chloro-3-methylphenol 36.4 38.1 50 72.8 76.2 4.6 22-147 31 <br /> Acenaphthene 30.7 35.7 50 61.4 71.4 15.1 56-118 36 <br /> 4-Nitrophenol 27.0 29.1 50 54.0 58.2 7.5 1-132 35 <br /> 2,4-Dinitrotoluene 37.6 43.1 50 - 75.2 86.2 13.6 39-139 35 <br /> Pentachlorophenol 43.6 43.3 50 87.2 86.6 0.7, 45-125 35, <br /> Pyrene 41.1 42.7 50 82.2 85.4 3.8 52-115 35 <br /> Surrogates(s) <br /> Nitrobenzene-d5 18.0 19.4 25 72.1 77.6 35-114 <br /> 2-Fluorobiphenyl 16.7 16.8 25 66.6 67.0 43-116 <br /> p-Terphenyl-d14 22.0 22.9 25 88.0 91.5 33-141 <br /> 2-Fluorophenol 24.1 26.0 50 48.2 52.1 25-100 <br /> Phenol-d5 15.7 17.8 50 31.3 35.6 10-110 <br /> 2,4,6-Tribromophenol 40.1 38.8 50 80.1 77.6 10-123 <br /> 1 1 <br /> Severn Trent Laboratories, Inc. 04(24/2005 13:33 <br /> STL San Francisco'1220 Quarry Lane,Pleasanton,CA 94566 <br /> A pan of Sevem Trent Ple Tel 925 484 1919 Fax 925 484 1096`www.sti-inc.com.CA DHS.ELAP#2496 Page 8 of 8 <br />