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I110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephane 925-798 1620 Fax 925 798-1622 <br /> d4 <br /> I <br /> hupYwwwmecangbellcorn E-mail mainEacampbellcom <br /> AES Regulatory Services,Inc Client Project ID Canteen Corp Date Sampled 12/30/02 <br /> 2013 Wells Branch Pkwy, Ste 206 Date Received 12/31/02 <br /> IClient Contact Eric Muehlberger Date Extracted 01/01/03-01/03/03 <br /> Austin,TX 78728 <br /> [Client P O Date Analyzed 01/01/03-01/03/03 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline* <br /> Extraction method SW5030B Analytical methods SW8015Cm Work Order 0212474 <br /> ILab lD Client ID Matrix TPH(g) DF %SS <br /> 001A MW-1 W ND 1 109 <br /> 002A MW-2 W ND 1 107 <br /> 003A MW-4 W ND l 109 <br /> 004A MW-5 W ND 1 116 <br /> 005A MW-6 W ND 1 113 <br /> 006A MW-7 W ND 1 104 <br /> 007A MW-8 W ND 1 105 <br />' 008A MW-9 W ND 1 103 <br /> Ile 049A MW-10 W ND 1 143 <br /> 010A MW-12 W ND 1 106 <br /> Reporting Limit for DF=1, W 50 gg/L <br /> t ND means not detected at or <br /> above the reporting limit S NA NA <br /> *water and vapor samples are reported in gg/L soil and sludge samples in mg/kg,wipe samples inµg/wipe and TCLP extracts in gg/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 signficant(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--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 <br /> DHS Certification No 1644 AEdward Hamilton, Lab Director <br /> 1 <br />