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110 2nd Avenue South ND? Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 975 798 1620 Fax 925 798 1622 <br /> Website www niccanipbell win Email mim a mLcampbell c om <br /> Advanced GeoEnvlronmental, Inc Client Project ID Stockton Plating SVE Date Sampled 10/28/04 <br /> 10/28 <br /> 837 Shaw Road Date Received 10/29/04 <br /> Client Contact Bill Little Date Extracted 10/29/04 <br /> Stockton, CA 95215 <br /> Client P O Date Analyzed 10/29/04 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Fxtraction method SW5030B Analytical methods SW802111180150m Work Order 0410450 <br /> Lab ID Client ID Matrix TPH(g} MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 00[A SVE A ND -- ND ND ND i ND 1 104 <br /> I <br /> � III <br /> 1 4 � <br /> i <br /> Reporting Limit for DF=1 A 25 25 025 025 025 025 1 µg/L <br /> M7 mews not detected at or <br /> above the reporting limit S NA NA NA NA NA NA 1 mg/Kg <br /> water and vapor samples and all TCLP&SPLP extracts are reported inµg/L,saiVsludge/solid samples in mg/kg, wipe samples inµg/wtpe, <br /> product/oil/non-aqueous liquid samples in mg/L <br /> 4 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 sign ificant(aged gasohne9) 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—1 vol %sediment d)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 recognizable pattern <br /> DHS Certification No 1644 JiZn- Angela Rydettus, Lab Manager <br /> I <br /> I <br />