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1 <br /> CHROMALAB, INC. <br /> Environmental Services(SDB) <br /> ' May 7, 1998 Submission ##: 9804438 <br /> HARDING LAWSON (SACRAMENTO) <br /> Atten: Gary Haeck <br /> Project: NEWARK SIERRA/STOCKTON Protect#- 40344 03 <br /> Received April 29, 1998 <br /> re: One sample for STEX analysis <br /> ' Method: SW846 8020A Nov 1990 <br /> Client Sample ID: SB-1-15 . 0 <br /> Spl#= 183159 Matrix SOIL <br /> ' Sampled: April 28, 1998 Run# 12558 Analyzed: May 1, 1998 <br /> REPORTING BLANK BLANK DILUTION <br /> RESULT LIMIT RESULT SPIKE FACTOR <br /> ANALYTE (mg/Kg) <br /> _ —,(mg/Kq) (mcr/Kar) _..(%) <br /> BENZENE N D. 0 0050 N D 86 1 <br /> TOLUENE N D 0 0050 N.D. 87 1 <br /> ETHYL BENZENE N.D 0 0050 N.D 83 1 <br /> XYLENES N.D 0 0050 N D 87 1 <br /> Note Sogate Recoveries demonstrate Matrix interference <br /> I <br /> Vincent Vancil Michael Verona <br />' Chemist Operations Manager <br /> 1 <br />?-916-364-S633 <br /> 1220 Quarry Lane - Pleasanton, California 94566-4756 GCY1320 BTEXQCO220 <br /> (510) 484-1919• Facsimile (510) 484-1096 MINCE 98 35 <br /> Federal 1D #68-0140157 <br />