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' 11D 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> h llwww mccampbel!corn H mad maul ca bell corn <br />' Advanced GeoEnvlronmental,Inc Client Project ID Flag City Chevron Date Sampled 12/05/02 <br />' 837 Shaw Road Date Received 12/06/02 <br /> Client Contact Tim Cuellar Date Extracted 12/09/02-12/11/02 <br /> Stockton,CA 95215 <br />' <br /> [Chent P O Date Analyzed 12/09102-I2/11/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW802113/8015Cm Work Order 0212097 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethyibenzene Xylenes DF %SS <br /> 001A MW13a W ND _-_ 13 ND ND ND 1 107 <br /> 002A MW13b W ND _._ ND ND ND ND 1 107 <br /> 003A MW13c W ND ND ND ND ND 1 105 <br />' 004A MW13d W ND _ ND ND ND ND 1 900 <br /> 005A Mw9a W ND ND ND ND ND 1 902 <br />' 006A MW9b W ND ..__ ND 1 i ND ND 1 868 <br /> 007A MW9c W ND ND ND ND ND 1 102 <br />' 008A MWBa W ND ND ND ND ND 1 994 <br /> 009A MW8b W ND __W ND ND ND ND 1 993 <br /> 010A MW8c W ND — ND ND ND ND 1 103 <br /> 011A MWl0a W ND ___ ND ND ND ND 1 984 <br />' 012A MW10b W ND ND ND ND ND t 95 8 <br /> 013A MW 10c W ND ___ ND ND ND ND l 105 <br />' 014A M W 10d W ND _— ND ND ND ND l 104 <br /> 015A MW10e W ND ND ND ND ND 1 102 <br /> ------------- <br /> Reporting Limit for DF=i, W 50 50 0 5 05 0 5 0 5 1 I glL <br />' ND means not detected at or <br /> above the reporting linnt S NA NA NA NA NA NA 1 mg(Kg <br /> *water and vapor samples are reported in pg/L,soil and sludge samples in mg/kg,wipe samples inµg/wipe,and TCLP extracts inµg/L <br />' #cluttered chromatogram sample peak coclutes 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 gasoline7),c)tighter gasoline range <br /> compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasoline9,e)TPH pattern that does not appear to be denved 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--2 vol %sediment,j)reporting limit raised due to high MTBE content k)TPH pattem that does not appear to be <br /> derived from gasoline(aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br />