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110 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br /> :mcCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 A—#— <br /> http l/www mccampbell com F-snail mam@mccampbell com <br /> Advanced GeoEnviromnental Client Project ID Yomada Bros Date Sampled 03/29/02 <br />' 837 Shaw Road Date Received 04/01/02 <br /> Client Contact Paul Dotson Date Extracted 04/04/02 <br /> Stockton,CA 95215 <br />' Client P O Date Analyzed 04/04/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with MTBE and BTEX* <br /> I xtractionmethod SW503013 Analytical methods SW8021$l8015Cm Work Order 0204024 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A DWI/032902 W ND ND ND ND ND ND I l00 <br />' 002A MW 1/032902 W ND ND ND ND ND ND 1 101 <br /> 003A MW2/032902 W ND 100 ND ND ND ND 1 97 9 <br /> 004A MW3/032902 W ND 120 ND ND ND ND 1 102 <br /> Reporting Limit for DF=I W 50 5 0 5 05 0 5 05 ug/L <br /> ND means not detected at or <br /> above the reporting limit S 1 005 0 005 0 005 0 005 0 005 mg/Kg <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples 1n ug/wipe,and TCI.P extracts in ug/L <br /> DF=dilution factor <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> I +The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation a) <br /> utimodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are significant(aged gasoline7),c)lighter gasoline range <br /> compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> I 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 /> g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,1)liquid sample that <br /> contains greater than--2 vol %sediment,l)no recognizable pattern <br /> 46 1 —4-- 1 <br /> DHS Certification No 1644 Edward Hamilton,Lab Direct <br />