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110 2nd Avenue South t1D7 Pacheco,CA 94553 5560 <br /> McCampbell Analytical, Inc. Telephone 925-798-1620 Fax 925-798-1622 <br /> 24 Website www mceampbell com F-mmil mam@nicc im,)bell cam <br /> Advanced GeoEnvironmental, Inc Client Project ID Geweke Date Sampled 09/09/04 <br /> 837 Shaw Road Date Received 09/10/04 <br /> Stockton,CA 95215 Client Contact Bob Marty Date Extracted 09114/04-09117/04 <br /> Client P O Date Analyzed 09/14/0-109/17/04 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extracnonmethod SW5030B Analyncalmethods SW8021$18015Cm Work Order 0409135 <br /> Lab TD Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF °/a SS <br /> 001A MW7 W ND --- ND ND ND ND 1 NO <br /> 002A MW8 W 2600,b,m --- 1 5 40 47 240 2 110 <br /> 003A MW9 W 1700,b,m 1 3 20 57 27 2 106 <br /> 004A M W l l W ND -- ND ND ND ND 1 977 <br /> 005A MW12 W ND --- ND ND ND ND 1 976 <br /> 006A MW14 W ND --- ND ND ND ND 1 982 <br /> 007A MW 15 W ND --- ND ND ND ND 1 997 <br /> 008A M W l6 W ND ND ND ND ND 1 100 <br /> 009A MW17 W ND -- ND ND ND ND 1 103 <br /> OIOA MW18 W ND --- ND ND ND ND 1 970 <br /> 011 A i M W 19 W ND ND ND ND ND 1 990 <br /> 012A M W20 W ND -_ ND ND ND ND 1 978 <br /> 013A MW21 W ND --- ND ND ND ND 1 985 <br /> 014A MW22 W ND ND ND ND ND 1 103 <br /> Reporting Lunt for DF 1, W 50 50 05 05 05 05 1 }tg/L <br /> ND means not detected at or <br /> above the reporting hnut S NA NA NA NA NA NA 1 mg/Kg <br /> *water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soillsludge/sohd samples in mg/kg wipe samples in 4g/wipe, <br /> product/oil/non-aqueous liquid samples in mg1L <br /> #cluttered chromatogram,sample peak coclutes with surrogate peak <br /> +The following descriptions of the TPH chromatogram are cursory to 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 slgnificant(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 gasolme9,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spint?),f)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,1)liquid <br /> sample that contains greater than--I 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,n)TPH(g)range non-target isolated peaks subtracted out of the TPH(g)concentration at <br /> the client's request <br /> DHS Certification Na 1644 Angela Rydelius, Lab Manager <br />