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' 1102nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCampbell .Analytical Inc Telephone 925-798-1620 Fax 925-798 1622 <br />' http Hwww inecampbell com F mail main Ln bell com_ <br /> Advanced GeoEnvironrnental, Inc Client Project ID Arco Pacific Mini Mart Date Sampled 11/26/02 <br />' 837 Shaw Road Date Received 11/27/02 <br /> Stockton,CA 95215 Client Contact Bill Little Date Extracted 11/27/02 <br /> Client P O Date Analyzed 11/28/02-12/05/02 <br /> Gasoline Range (C6--C12) Volatile Hydrocarbons as Gasoline* <br /> ="t-Turhm-.1�hodW5030B Analytical methods SW8021B/8015Cm Work Order 0211472 <br />' Lab IID Client 1D Matrix TPH(g) DF %SS <br /> 0211472-017A MW15 W ND t 1 102 <br />' 021 1472-0 l8A M W l6 W ND 1 107 <br /> 0211472-019A VW-t W 5800,a 10 ---# <br /> 1 <br /> I <br /> Reporting Limit for DF=1 `y 50 <br />' ND means not detected at or <br /> above the reporting limit S NA NA <br /> *water and vapor samples are reported inµg/1„soil and sludge samples in mg/kg wipe samples in l<g/wipe,and TCLP extracts inµg/L <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descriptions ofthe 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 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 spint7),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 pattern,that does not appear to be <br /> derived from gasoline(aviation as) m)no recognt7able Rattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />