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a110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical IncTewlephone 925 798 1620 Fax 925-798-1622 <br /> http!/ww mccampbell com E-mail mamQmccampbell cam <br /> 10 I T Corporation Client Project ID #20632, STHL/Stockton Date Sampled 04/10/02 <br /> 4005 Port Chicago Hwy Date Received 04/10/02 <br /> Client Contact Shelby Lathrop Date Extracted 04115102-04119102 <br /> Concord,CA 94553-2233 <br /> Client P O Date Analyzed 04115102-04119102 <br /> aGasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> xtraction method SW5030B Analytical methods SW802113/8015Cm Work Order 0204212 <br /> a Lab ID Client ID Matnx TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> I I <br /> 001A III MW-6 W ND ND ND ND NDND 1 117 <br /> 002A MW-7 W ND<500 13000 ND<5 0 7 7 ND<5 0 5 2 j 10 111 <br /> 4 <br /> 003A i MW 4R W 3700 4200 330 31 120 480 10 �i 133 <br /> 004A MW-2 W ND<100 2200 N1<1 ND<l ND<1 I ND<1 2 120 <br /> 005A <br /> MW-3 W 3800,b j ND<50 ND<5 0 14 180 1 110 10 129 <br /> 006A MW-1 W ND ND ND 073 I ND ND 1 98 8 <br /> 007A MW-5 W 92,a 85 20 ND ND ND 1 104 <br /> T <br /> t <br /> D -4- <br /> Reporting Limit for DF=1, W 50 505 <br /> 0 5 0 5 0 5 ug/L <br /> M ND means not detected at or <br /> Uabove the reporting limit S 1 005 0 005 0 005 0 005 0 005 mg/Kg <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,and TCLP extracts in ug/L <br /> DF=dilution factor <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 stgnificant(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 gasoltne'�,e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent),f)one to a few isolated non-target peaks present, <br /> g)strongly aged gasoline or diesel range compounds are significant,h)fighter than water immiscible sheen/product is present,i)liquid sample that <br /> contains greater than—2 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 _ _ <br /> Edward Hamilton,Lab Director <br />