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' 110 2nd Avenue South #137 Pacheco CA 94553-5560 <br /> McCampbell Analytical Inc Telephone 925 798-1620 Fax 925-798 1622 <br /> htip//www mccampbekl com E mad main@mccampbell com <br /> I T Corporation Client Project ID #14117, Date Sampled 04/12/02 <br /> STHL/STOCKTON <br /> ' 4005 Port Chicago Hwy Date Received 04/15/02 <br /> Concord, CA 94553-2233 Client Contact Shelby Lathrop Date Extracted 04/17/02-04118102 <br /> Client P O Date Analyzed 04/17/02-04/18/02 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> xtraction method SW5030B Analytical methods SW8021B/9015Cm Work Order 0204250 <br /> ' Lab 1D C11ent ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes OF %SS <br /> 001A MW-6 W NO NO NO NO NO ND l 108 <br /> ' 002A MW-5 W ND ND NO NO NO ND 1 106 <br /> 003A MW-7 W NO ND NO I ND NO ND 1 107 <br /> ' 004A MW-1 W 170,a 16 2 9 NO 054 NO 1 109 <br /> 005A MW-2 W 350,a 270 3 0 35 14 NO 1 ---# <br /> 006A MW-3 W 14000,a 290 620 540 700 2500 20 ---# <br /> 007A MW-4 W 4400,a 870 170 9 9 330 220 5 ---# <br /> i <br /> ' I i <br /> I <br /> Reporting Limrt for OF=1, W 50 5 0 5 05 05 i 05 ug/L <br /> ' <br /> NO means not detected i t or S 1 0 05 0 005 1 0 005 t 0 005 0 005 m /K <br /> above the reporting limit I � I g g <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 to 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 sigrnficant(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),f)one to a few isolated non-target peaks present, <br /> ' g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible sheen/product is present,1)liquid sample that <br /> contains greater than---2 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />