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I <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> I http/)www mccanipbell cam E-mail nmui(a-jrmcampbellcom <br /> Advanced GeoEnvironmental, Inc Client Project ID Stockton Fire Station Date Sampled 04/24/03 <br /> I837 Shaw Road Date Received 04/25/03 <br /> Client Contact Bill Little Date Extracted 04/25/03 <br /> Stockton, CA 95215 <br />' Client P O Date Analyzed 04/25/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extractionmethod, SW5030B Analytical methods SW8021B/8015Cm Work Order 0304403 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A Effluent A ND ND ND ND ND 1 102 <br /> I <br /> I <br /> Lie <br /> Reporting Lmut for DF=1 A 25 25 025 025 025 025 L }tglL <br />' ND means not detected at or <br /> above the reporting hmit S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples are reported in gg/L,soil and sludge samples in mg/kg,wipe samples in gg/wipe,and TCLP extracts in lig/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 gasolme9),c)lighter gasoline range <br />' compounds(the most mobite fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasolme7,e)TPH pattern that does not appear to be denved from gasoline(stoddard solvent/mineral spirit7),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 />' denved from gasoline(aviation gas) m)no recognizable pattern <br /> . DHS Certification No 1644 Angela Rydelius, Lab Manager <br />