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Mccampbell Analytical Inc 110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> Teiephone 925-798-1620 Fax 925-798-1622 <br /> h //www mcc bell com F-mail rinin@mccanipbell com <br /> rAdvanced GeoEnvironmental, Inc Client Project ID Stockton Plating Date Sampled 06/10/03 <br /> EE <br /> w Road Date Received 06/1 I/03 <br /> Stockton, CA 95215 Client Contact Bill Little Date Extracted 06/12/03-06/13103 <br /> ' Client P O Date Analyzed 06/12/03-06/13/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm <br /> Lab[D Work Order 0306233 <br /> Client ID Matnx TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 002A EWI W 46,000,a — 13,000 4900 2000 3100 100 106 <br /> 003A EW2 W 59,a --- 32 065 <br /> 056 ND 1 100 <br /> I <br /> PCWrhng i.irrut for OF=1 W 50 50 ..... <br /> 5 O S <br /> ND means not not detected at or 05 05 1 <br /> above the reporimg lmat S NA NA NA NA <br /> NA NA 1 mg/Kg <br /> *water and vapor samples arc reported in pg/L,soil and sludge samples in mg/kg,wipe samples in pg/wipe,and TCLP extracts in gg/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 gasoline'),e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spirit?),0 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,1)liquid <br /> sample that contains greater than–2 vol %sediment,j)reporting limit raised due to high MTBE content,k TPH attern that does not a <br /> I denved from gasoline{aviation gas) m)no recognizable pattern ) p ppear to be <br /> DHS Certification No 1644 Angela R�ydehus, Manager <br />