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_ 110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> F4MCCampbell Analytical Inc Telephone 925-798 1620 Fax 925-798 1622 <br /> �http//www mccampbell corn E mail inam(a)mccampbell com <br /> Advanced GeoEnvlronmental,Inc Client Project ID Yamada Brothers Date Sampled 12/11/02 <br /> 837 Shaw Road Date Received 12/12/02 <br /> Client Contact Paul Dotson Date Extracted 12/13/02-12/16/02 <br /> Stockton, CA 95215 <br /> Client P O Date Analyzed 12113/02-12/16102 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5mm Anatyucal methods SW8021B/8015Cm Work Order 0212213 <br /> ILab m Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %S5 <br /> 001A MW1 W ND --_ ND ND ND ND 1 989 <br /> 002A MW2 W ND<500:1 __ ND<5 0 ND<5 0 ND<5 0 ND<5 0 10 105 <br /> 003A MW3 W ND ND ND ND ND 1 97 8 <br /> 004A DW W ND __ ND ND ND ND 1 103 <br /> i <br /> I � <br /> i <br /> i <br /> I <br /> Reporting Lirmt for DF=1 W 50 50 05 05 05 O S 1 µg/L <br /> ND means eanot detected at or <br /> above the reporting lint S NA NA NA NA NA NA i mg/Kg <br /> *water and vapor samples are reported inµg1L soil and sludge samples to mg/kg,wipe samples inµg/wipe,and TCLP extracts inµg/]L <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 gasohne9) 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 gasoline9 e)TPH pattern that does not appear to be derived from gasoline(Stoddard solvent/mineral spirit'),0 one to a few isolated non-target <br /> peaks present g)strongly aged gasoline or diesel range compounds are significant h)lighter than water immiscible sheen/product is present 1)liquid <br /> sample that contains greater than--2 vol %sediment j)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be <br /> Iderived from gasoline(aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br /> I <br />