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CHROMALAB, INC. <br /> w= Environmental Services(SDB) <br />' April 16 , 1998 Submission #: 9803455 <br />' HARDING LAWSON (SACRAMENTO) <br /> Atten Gary Haeck <br />' Project 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#: 12050 Analyzed: April 7, 1998 <br />' Spike <br /> Spike Amount Amount Found Spike Recov <br /> BSP Dup BSP Dup BSP Dup Control RPD <br /> Analyte (m KQ) (mq/Kct) M (%) _ Lim3.,ts RPD Lim <br /> ' GASOLINE 0 500 0 500 0 378 0 .419 75 6 83 8 75-125 10 3 35 <br /> BENZENE 0 100 0 100 0 0980 0 103 98 0 103 77-123 4 98 35 <br /> oLUENE 0 100 0 100 0 0989 0 . 105 98 9 105 78-122 5 98 35 <br /> xxL BENZENE 0 100 0 100 0 . 0967 0 . 102 96 7 102 70-130 5 33 35 <br /> LENES 0 300 0 300 0 . 304 0 . 320 101 107 75-125 5 . 77 35 <br /> BS Smpt # 179374 1220 Quarry Lane • Pleasanton, California 94566-4756 <br /> BSD SmpL # 179375 (510) 484-1919• Facsimile (510) 484-1096 OCESD+226 orXGS63124 <br /> Federal ID #68-0140157 <br />