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I <br /> CHROMALAB, INC. 4 <br /> Environmental Services(SDB) <br /> . March 23 , 1998 Submission #: 9803170 <br /> CONSTRUCTION TESTING & ENG. <br /> I <br /> A tten: Steve Teel <br /> Project: CINTRA PARK roject#: 20-0445B <br /> Received: March 13 , 1998 <br /> re: Blank spike and duplicate report fo Gasoline BTEX analysis . ' <br /> Method: SW846 8020A Nov 1990 / 8015Mod <br /> i <br /> Matrix: SOIL <br /> Lab Run#: 11741 Analyzed: March 20, 1998 <br /> Spike � <br /> Spike Amount Amount, Found Spike Recov $ <br /> BSP Dup BSP Dup BSP Dup Control RPD <br /> Analyte m R (mg/K Limits RPD Lim <br /> r <br /> GASOLINE 0 . 500 0 . 500 0 .409 0 .499 81 . 8 99 . 8 75-125 19 . 8 35 <br /> BENZENE 0 . 100 0 . 100 0 . 0840 0 . 0754 84 . 0 75 .4 77-123 10 . 8 35 <br /> TOLUENE 0 . 100 0 . 100 0 . 0889 0 . 0802 88 . 9 80 .2 78-122 10 . 3 35 <br /> ETHYL BENZENE 0 . 100 0 . 100 0 . 0956 0 . 0855 95 . 6 85 . 5 70--130 11.. 2 35 <br /> XYLENES 0 . 300 0 . 300 0 .258 0 . 234 86 . 0 78 . 0 75-125 9 . 76 35 <br /> 6 . <br /> Fl� <br /> F <br /> r <br /> 83 <br /> Smpt #: 176558 1220 Quarry lane• Pleasanton, Cal fornix 94566-4756 <br /> FBSD Smpt #: 176559 (510) 484-1919•Facsimile (510) 484-1096 «8o,ae MUM IA:53:53 <br /> Federal ID#68-0140 57 <br />