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1 <br /> CHROMALAB, INC. <br /> ,a= Environmental Services(SDB) <br /> ' April 20 , 1998 Submission #: 9803455 <br /> HARDING LAWSON (SACRAMENTO) <br /> Atten Gary Haeck <br />' Pro_7ect 38737 004 <br /> Received March 30 , 1998 <br />' re Blank spike and duplicate report for Gasoline BTEX analysis <br /> Method SW846 8020A Nov 1990 / 8015Mod <br /> ' Matrix SOIL <br /> Lab Run# 12107 Analyzed April 9 , 1998 <br /> ' Spike <br /> Spike Amount Amount Found Spike Recov % <br /> BSP Dup BSP Dup BSP Dup Control % RPD <br /> Analyte (mcr/Ka) (mg/Kg) M M Limits RPD Lim <br /> GASOLINE 0 500 0 500 0 475 0 391 95 0 78 2 75-125 19 4 35 <br /> BENZENE 0 100 0 100 0 102 0 . 0982 102 98 2 77-123 3 80 35 <br /> OLUENE 0 100 0 100 0 100 0 . 0990 100 99 0 78-122 1 00 35 <br /> YL BENZENE 0 100 0 100 0 0966 0 . 0948 96 6 94 8 70-130 1 88 35 <br /> WENES <br /> 0 300 0 300 0 305 0 299 102 99 7 75--125 2 28 35 <br /> 1 <br /> BS Smpl # 179846 1220 Quarry Lane - Pleasanton, California 94566-4756 <br /> BSD Smpl # 179847 (510) 484-1919- Facsimile (510) 484-1096 «_Mine SURBAISA529 <br /> Federal ID #68-0140157 <br />