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110 2nd Avenue South #137 Pacheco CA 94553-5560 <br /> McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925 798-1622 <br /> 24 1 Website www mccampbell com E maii mam@mccampbell cum <br /> Advanced GeoEnvironmental,Inc Client Project ID Three B's Date Sampled 03/16/04 <br /> I 837 Shaw Road Date Received 03/18/04 <br /> Client Contact Tim Cuellar Date Extracted 03120104-03123104 <br /> Stockton,CA 95215 <br /> Client P O Date Analyzed 03120/04.03123104 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B18015Cm Work Order 0403291 <br /> Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 017A MWllF W ND -- ND ND ND ND 1 843 <br /> i <br /> I <br /> I <br /> I+� <br /> I <br /> I <br /> 1 <br /> 1 Reporting Lumt for OF=1 W 50 ' 0 0, 05 05 05 1 µg/L <br /> NO means not detected at or <br /> above the reporting limit S NA NA NA NA NA NA 1 JJ <br /> mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples in mg/kg, wipe samples in gglwipc, <br /> 1 produet/oil/non-aqueous liquid samples in mg/L <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 1 +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 gasolme9,e)TPH pattern that does not appear to be denved 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 sheeniproduct is present,i)liquid <br /> 1 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 Rydelius, Lab Manager <br /> 1 <br /> 1 <br />