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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. 'Telephone 925-798-1620 hax 925-796-1622 <br /> 24 Website www mccampbell corn E-mail mam@nccampbell 0)ill <br /> Advanced GeoFnviroilmental,Inc Client Project ID Flag City Chevron Date Sampled 07/15/01 <br /> 837 Shaw I;oP d Date Recelvcd 07/1610.1 <br /> Client Contact 1 un Cuellar Date Exti acted 07116104-07120/04 <br /> Stockton,CA 95215 <br /> Client P O Date Analyzed 07116104-07,20/04 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Anal)t1L it methods SW8021Bl8015Cm Work Order 0407214 <br /> Lab ID C.hLnt 11) Matnx TPH(g) FMTBE Benzene TolueneEtbylbriizene Xylenes DF %SS <br /> 001A Influent W ND - ND ND ND ND 1 102 <br /> 002A Effluent W ND -- ND ND ND ND 1 858 <br /> I <br /> i <br /> Reporting Limit for DF=l W 50 50 05 05 05 05 1 1tg/L <br /> ND means not detected at or <br /> above the reporting limn S NA NA NA WA7 NA NA 1 mg/fCg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples in mglkg, wipe samples in jig/wipe, <br /> product/oil/non-aqueous liquid samples in mg/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 signifrcant(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 gasoline9,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spirit?) 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,t)liquid <br /> sample that contains greater than—1 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 gas) m)no recognizable pattern n)TPH(g)range non-target isolated peaks subtracted out of the TPH(g)concentration at <br /> the client's request <br /> DHS Certification No 1644 Angela Rydehus, Lab Manager <br />