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STLTT Submission# 2003-09.1024 <br /> Gas/BTEX Compounds by 8015M18021 i <br /> SECOR-Sacramento <br /> Attn Rusty Benkosky <br /> 3017 Kilgore Road, Suite 100 <br /> Rancho Cordova, CA 95670 <br /> Phone (916)861-0400 Fax (916)861-0430 <br /> Project Site#6981 Received 09/26/2003 20 20 <br /> Site 4707 Pacific Ave, Stockton, CA <br /> Batch QC Report <br /> Prep(s) 5030 Test(s) 8021 B <br /> Laboratory Control Spike Water QC Batch#2003/10108-0105 <br /> LCS 2003110108-01 05-004 Extracted 10/08/2003 Analyzed 1010812003 08 01 <br /> LCSD 2003/10/08-0105-005 Extracted 10/08/2003 Analyzed 10/08/2003 08 33 <br /> Compound Conc ug1L Exp Conc Recovery% RPD Ctrl Limds% Flags <br /> LCS LCSD LCS LCSD % Rec RPD LCS LCSD <br /> Benzene 961 91 2 1000 961 91 2 5 2 77-123 20 <br /> Toluene 955 925 1000 955 925 32 78-122 20 <br /> Ethyl benzene 946 908 1000 94 6 908 41 70-130 20 <br /> Xylene(s) 277 269 300 923 897 2 9 75-125 20 <br /> Surrogates(s) <br /> Trifluorotoluene 1475 1459 1500 1950 91 8 1 58-124 <br /> Severn Trent Laboratories, Inc 10/09/2003 13 39 <br /> STL San Francisca.1220 Quarry Lane Pleasanton CA 94566 <br /> A W.15- '+T-A FU Te1925 484 1919 Pax 925 484 1096'www stl ine com'CA DHS FLAP#2496 Page$0{9 <br />