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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Pax 925-798-1622 <br /> http//wwwTnccanTpbellcom E-mail mam@mccampbell com <br /> Advanced GeoEnviromnental Client Project ID Tracy Marine Date Sampled 03/23/02 <br /> 837 Shaw Road Date Received 03/26/02 <br /> IClient Contact Brian MiUman Date Extracted 03/27/02-03/29/02 <br /> Stockton,CA 95215 <br /> LChent_P0 Date Analyzed 03/27/02-03/29/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with MTBE and BTEX* <br /> Lx1rac—.tion method SW5030B Analytical methods SW8021B/8015Cm Work Order 0203458 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A MWl/032302 W ND ND ND ND ND ND 1 101 <br /> 002A MW2/032302 W 330,a 1900 30 74 18 42 1 104 <br /> 003A MW3/032302 W ND ND ND ND ND ND 1 104 <br /> 004A MW4/032302 W 120,a 160 68 082 50 6 6 1 114 <br /> 005A MW5/022302 W 1300,a 420 260 72 44 36 1 117 <br />' 006A MW6/022302 W ND ND ND ND ND ND 1 102 <br /> 007A MW7/0323/02 W 12000,a 37000 1700 1700 460 840 20 102 <br /> 008A MW8/032302 W 69 ND 072 ND 059 ND 1 105 <br /> 009A MW9/032302 W ND ND ND ND ND ND 1 104 <br /> i010A MW10/032302 W ND ND ND ND ND ND 1 103 <br /> 011A MW11/032302 W ND ND ND ND ND ND 1 105 <br /> i <br /> i <br /> 1 <br /> Reporting Limit for DF-1, W 50 5 05 05 05 05 ug/L <br /> 1 ND means not detected at or S 1 005 0 005 0 005 0 005 0 005 mg/Kg <br /> above the reporting limit <br /> "water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,and TCLP extracts in ug/L <br /> 1 DF=dilution factor <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 gasolme9),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),f)one to a few isolated non-target peaks present, <br />' g)strongly aged gasoline or diesel range compounds are significant h)lighter than water immiscible sheen/product is present,i)liquid sample that <br /> contains greater than—2 vol %sediment,f)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Direct <br /> 1 <br />