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110 2nd Avenue South,#D7 Pacheco CA 94553-5560 <br /> Inc.McCampbell Analytical, Telephone 925 798 1620 Fax 925 798-1622 <br /> Website www mccampbell coni h mail mamQmccampbell cum <br /> Advanced GeoEnvironmental, Inc Client Project ID Flag City Chevron Date Sampled 01/20104-01/22104 <br /> 837 Shaw Road Date Received 01/23/04 <br /> Stockton, CA 95215 Client Contact Tim Cuellar Date Extracted 01123/04-01127104 <br /> Client P O Date Analyzed 01/23104-01/27/04 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with B 1 EX and MTBE* <br /> _ Extraction method SW5030B _ Analytical methods SW802111/8015Cm - - Work Order 0401260 <br /> Lab ID Client 1D Matnx TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes <br /> 001A P41-15to20 W ND,i --- ND ND ND ND l f 14 <br /> I <br /> 002A P41-37to41 W ND,i --- ND ND ND ND 1 112 <br /> 003A P42-Ilto16 W ND,i --- ND ND ND ND 1 118 <br /> 004A P42-40to44 W ND,i --- ND ND ND ND 1 115 <br /> 005A P40A-14to19 W ND ND ND ND ND i H3 <br /> 006A I P40A-47to51 W ND,i --- ND ND ND ND l 117 <br /> 007A P39-15to20 W ND,i ND ND ND ND 1 i 113 <br /> I <br /> 008A P39-36to41 I W ND,t — ND ND ND ND ! 1 117 <br /> I <br /> 009AJ P3947to51 W ND,i --- ND ND ND ND 1 E 114 <br /> 010A I P43-13to18 W ND,,_.. --- ND ND ND ND t 134 <br /> 011A P43-37to41 W ND,i -- ND ND ND ND 1112 <br /> 012A P43-1.7to5i W ND,i --- ND ND ND ND 1 115 <br /> i I - <br /> 013A P39-45' S ND -- ND ND ND ND i 1 930 <br /> 014A I P40A-15' S ND ND TND ND ND ! 1 95 8 <br /> �— -- <br /> 015A P40A-30S ND --- ND ND ND ND 1 I 109 <br /> 016- { P40A-45'_— S ND --- ND ND ND ND l I 89 5 <br /> Reporting Lmut for DF=1, W 50 50 05 0 5 05 05 I l µglL <br /> ND means not detected at or I <br /> above the reporting limit S 1 0 005 0 005 0 005 0 005 0 005 1 Tmg/Kg <br /> water and vapor samples and all TCLP&SPLP extracts are reported in ug/L soil/sludge/solid samples in mg/kg, wipe samples to lug/wipe <br /> product/oil/non-aqueous liquid samples in mg/L <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descnptions 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 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 gasohne?,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral spirit?),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 vol %*dimerlt,l)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be <br /> derived from gasoline(aviation as) m)no recognizable pattern <br /> DHS Certification No 1644 Angela Rydelius,Lab Manager <br />