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110 2nd Atienue South #fD7,Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925 799-1622 <br /> hap 11www mccanipbell corn E mail main mccampbell corn <br /> Advanced GeoEnvironmental, Inc Client Project ID Flag City Chevron Date Sampled 12/09/03 <br /> 837 Shaw Road Date Received 12/10/03 <br /> Stockton, CA 95215 Client Contact Tun Cuellar Date Extracted 12/10/03-12112/03 <br /> Client P O Date Analyzed 12/10/03-12/12/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline* <br /> xtiaction method SW5030B Andlyucal methods 9015Cm Work Order 0312197 <br /> Lab ID Client ID Matnx TPH(g) DF %SS <br /> 019A CSA-1 W ND 1 91 1 <br /> 020A CSA-2 W ND 1 913 <br /> I� <br /> Reporting Limit for DF=1, `lS7 50 ly�L <br /> ND means not detected at or <br /> above the reporting limit 5 NA NA <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/50lid samples in mg/kg, wipe samples in gg/wipe, <br /> productlod/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 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 spint9),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 gas) m)no recognizable pattern <br /> DHS Certification No 1644 __Angela Rydeltus, Lab Manager <br />