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Inc. 10 2nd Avenue South #D7 Pacheco,CA 94553-5560 <br /> McCampbell Analytical, nc. Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 Website www mceampWI com E-nml main®mccanVbell com <br /> Advanced GeoEnvironmental,Inc Client Project ID Flag City Chevron Date Sampled 06/14/04 <br /> 837 Shaw Road Date Received 06/15/04 <br /> Client Contact Tun Cuellar Date Extracted 06/15/04 <br /> Stockton,CA 95215 <br /> Client P O Date Analyzed 06/16/04-06/19/04 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline with MTBE* <br /> tracttonmetliad SW5030B Analypcalmethods SW8021B/8015Cm <br /> Work Order 0405242 <br /> Lab ID Client ID Matrix TPH(g) MTBE DF %SS <br /> 0406242-033A EW-5 W ND 6 I 1 972 <br /> 0406242-034A EW-6 W ND ND 1 104 <br /> 0406242-035A EW-7 W ND 79 1 106 <br /> 0406242-036A EW-8 I W ND 17 1 844 <br /> 0406242-037A EW-9 W ND 30 1 861 <br /> 0406242-038A EW-10 W ND 4d 1 875 <br /> 04D6242-039A CSA-i W ND ND 1 887 <br /> 0406242-040A CSA-2 W ND ND i 873 <br /> i <br /> Reporting Limit for DF=1, W 50 50 Ag/1. <br /> ND means not detected at or <br /> above the reporting limit S NA NA 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 ltg(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 McCamphell Analytical is not responsible for their interpretation a) <br /> unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are signifiicant(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 gasohne9,e)T H pattem 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,i)liquid <br /> sample that contains greater than—1 vol %sediment,l)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 <br /> DHS Certification No 1644 Angela Rydehus,Lab Manager <br />