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I110 2nd Avenue South #D7,Pacheco CA 94553-5560 <br /> McCampbell Alnalytical Inc Telephone 925-799-1620 Fax 925-796-1622 <br /> httpJ/www mccampbell coin E-mail main@mccampbell corn <br /> IAdvanced GeoEnviromnental,Inc Client Project ID Yornada Bros Date Sampled 06/17/02 <br /> • 837 Shaw Road Date Received 06/18/02 <br /> IClient Contact Paul Dotson Date Extracted 06/19/02-06/20102 <br /> Stockton, CA 95215 <br /> Client P O Date Analyzed 06/19/02-06/20/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> traction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0206275 <br /> ILab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A DW-1/061702 W ND ND ND ND ND ND 1 107 <br /> I002A M W 1/061702 W ND ND ND ND ND ND 1 107 <br /> 003A MW2/061702 W ND 830 ND ND ND ND 1 113 <br /> I004A MW3/061702 W ND 97 ND ND ND ND 1 112 <br /> I <br /> I - <br /> I • <br /> I <br /> I <br /> I <br /> Reporting Limit for DF 1, W 50 so 05 05 05 05 ug(L. <br /> I means not detected t or <br /> ab 0 005 0 005 0 005 0 005 m <br /> above the reporting limit S 10 005 Pig <br /> *water and vapor samples are reported in ug/I,,soil and sludge samples in mg/kg,wipe samples in ug/wipe,and TCLP extracts in ug/L <br /> DF=dilution factor <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation a) <br /> unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are significant(aged gasoline9),c)lighter gasoline range <br /> compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasoline?,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent),f)one to a few isolated non-target peaks present, <br /> I g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,r)liquid sample that <br /> contains greater than—2 vol %sediment,l)no recognizable pattern,k)TPl1 pattern that does not appear to be derived from gasoline(aviation gas) <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br /> I <br />