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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> Inc.McCampbell Analytical, Telephone 925-798-1620 Fax 925 796-1622 <br /> 24 1 Website www mccampbell com E mail main®mecampbell Com <br /> Advanced GeoEnvironmental,Inc Client Project ID Flag City Chevron Date Sampled 12/27/04 <br /> 837 Shaw Road Date Received 12/28/04 <br /> Client Contact Tim Cuellar Date Extracted 12/29104-01101105 <br /> Stockton, CA 95215 <br /> Client P O Date Analyzed 12129104-01/01/05 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline <br /> xtracbon method SW5030B Analytical methods SWBO15Cm Work Order 0412516 <br /> Lab iD Client ID Matrix TPH(g) DF %SS <br /> 017A MW11B W ND l 101 <br /> 018A MWIIC W ND 1 101 <br /> 019A MW11D W ND 1 100 <br /> 020A MW12A W ND 1 101 <br /> 021A MW1213 W ND 1 100 <br /> 022A MW12C W ND 1 100 <br /> 023A MW12D W ND 1 82 <br /> 024A MW13A W ND,i 1 117 <br /> 025A MW13B W ND 1 107 <br /> 026A MW13C W ND 1 106 <br /> 027A MW13D W ND I lli <br /> 028A MW14 W ND 1 100 <br /> 029A MW15 W ND 1 99 <br /> 030A M W 16 W ND 1 98 <br /> 031A MW17 W ND 1 102 <br /> 032A MW18 W ND 1 100 <br /> Reporting Limit for DF=1, W 50 pg/L <br /> ND means not detected at or S NA NA <br /> above the reporting limit <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ugiL,soil/sludge/solid samples in mg/kg, wipe samples in lig/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 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 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,i)liquid <br /> sample that contains greater than--1 vol %sediment,})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 at <br /> the client's request <br /> DHS Certification No 1644 Angela Rydelius,Lab Manager <br />