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110 2nd Avenue South i1D7 Pacheco,CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925-798-1620 Fax 9zs-798-16zz <br /> h //www mec bell com E-mail main mccanMbel]corn <br /> . Advanced GeoBnvironmental, Inc Client Project ID (Arco)Pacific Mini Date Sampled 02/25/03 <br /> 837 Shaw Road Mart Date Received 02/27/03 <br /> Client Contact Bill Little Date Extracted 02/28/03-03/03/03 <br /> Stockton,CA 95215 <br /> Client P O Date Analyzed 02/28/03-03/03/03 <br /> Gasoline Range(C&C12) Volatile Hydrocarbons as Gasoline* <br /> Extraction method. SW5030B Analytical methods SW8015Cm Work Order 0302377 <br /> Lab ID Client ID Matrix TPH(g) DF %5S <br /> 001A MW I W ND l 101 <br /> 002A MW 2 W ND 1 103 <br /> 003A MW 3 W ND 1 102 <br /> I004A MW 4 W 7600,a 10 118 <br /> 005A MW 5 W 4000,a 10 113 <br />' 006A MW 6 W ND 1 107 <br /> 007A MW 7 W ND 1 107 <br />' 008A MW 8 W ND 1 106 <br /> 009A MW 9 W ND 1 106 <br />' 010A MW 10 W ND 1 102 <br /> 011A MW 11A W ND,i 1 104 <br />' 012A MW 1113 W ND 1 104 <br /> 013A ! MW 12A W ND 1 113 <br /> t014A MW 128 W ND 1 110 <br /> -015A MW 13 I W ND ; 1107 <br /> 1 016A MW 14 W ND 1 106 <br /> Reporting Limit for DF=1, W 50 }tg/L <br />' 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 inµglwipe,and TCLP extracts in ltg/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 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 gasohne9,e)TPH pattern that does not appear to be denved from gasoline(stoddard solvent/mineral spint9),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,i)liquid <br /> sample that contains greater than—2 voi %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 1644J(--Angela Rydellus, Lab Manager <br />