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110 2nd Avenue South #D7,Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mcc hell corn E-mail mam mccarrgibell cpm <br /> Advanced GeoEnviromnental, Inc Client Project ID Langston Market Date Sampled 06/18/03 <br /> I 837 Shaw Road Date Received 06/19/03 <br /> Client Contact Paul Dotson Date Extracted 06121/03-06/23/03 <br /> Stockton, CA 95215 <br /> ` Client P O Date Analyzed 06121/03-06123/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTHE* <br /> Extraction method SW5030B Analytical methods SW8021B18015Cm Work Order 0306423 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> OOIA MWi/06-18-03 W 1600,a ND 26 25 73 480 1 103 <br />' 002A MW2/06-18-03 W ND ND ND ND ND ND 1 100 <br /> 003A MW3/06-18-03 W ND ND ND ND ND ND 1 103 <br /> I004A MW4/06-18-03 W ND ND ND ND ND ND 1 101 <br /> 005A MW5/06-18-03 W 2000,a ND<200 150 54 160 33 10 114 <br /> I006A MW6/06-18-03 W ND ND ND ND ND ND 1 103 <br /> 007A MW7/06-18-03 W ND ND ND ND ND ND 1 103 <br /> 008A MW8/06-18-03 W ND ND ND ND ND ND 1 985 <br /> I� <br /> I <br /> I <br /> I <br /> Reporting Lunit for DF=1, W 50 so 05 05 05 05 1 µg/L <br />' ND means not detected at or <br /> above the reporting lint S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples are reported inµg/L,soil and sludge samples in mg/kg,wipe samples inµg/wipe,and TCLP extracts inµg/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 signi6cant(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 spint7),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 pattern that does not appear to be <br />' derived from gasoline(aviation gas) m)no recognizable pattern vi <br /> DHS Certification No 1644 Bela Rydehus, Lab Manager <br />