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110 Ind Avenue South tfD7 Pacheco CA 945�5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798- <br /> Ih /lwww mcc bel]com )email ma cm <br /> Advanced GeoEnvironmental, Inc Client Project JD 3 B's Truck Plaza Date Sampled 03/25/03 <br /> 837 Shaw Road I Date Received 03/26/03 <br /> Client Contact Tim Cuellar Date Extracted 03127/03-03129103 <br /> Stockton,CA 95215 <br />' Client P O Date Analyzed 03127103-03129103 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br />' Extraction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0303442 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> OOIA MW9A W ND — ND ND ND ND 1 100 <br />' 002A MW913 W ND _ 17 ND ND ND 1 107 <br /> 003A MW9C W ND ND ND ND ND 1 961 <br />' 004A MW91) W ND ND ND ND ND 1 971 <br /> 005A MW9E W ND -, ND ND ND ND 1 97 0 <br />' 006A M W I IA W ND ND ND ND ND 1 106 <br /> 007A MWI1B W ND — ND ND ND ND 1 102 <br /> 008A MW11C W -r ND — ND ND ND ND 1 107 <br /> 009A MW11D W ND _,.. ND ND ND ND 1 102 <br /> M010A MW 1 l E W ND — ND ND ND ND 1 101 <br /> 011A MW t 1F W ND _ ND ND ND ND 1 97 6 <br /> 012A DW-1 W ND ND ND ND ND 1 101 <br /> Reporting Lirnt for DF=1 X747 50 1 50 0 5 05 0 5 05 1 pg/L <br /> ND means not detected at or <br /> above the reporting hent S NA NA NA NA NA NA 1 mRg <br /> *water and vapor samples are reported in Rg/L soil and sludge samples in mg/kg,wipe samples inµg/wipe,and TCLP extracts in pg/L <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descnptrons of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation a) <br /> i unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are srgnificant(aged gasoline),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/mineral spent?),f)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,i)liquid <br /> sample that contains greater than—2 vol %sediment,j)reporting limit raised due to high MTBE content,k)TPH pattem that does not appear to be <br /> iderived from gasoline(aviation gas) m)no recognizable pattern <br /> . DHS Certification No 1644 gela Rydelius,Lab Manager <br /> i <br /> i _ <br />