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I110 2nd Avenue South t1D7,Pacheco CA 94553-5560 <br /> McCampbell Analyt><cal Inc Telephone 925-796-1620 Fax 925-796-1b22 <br /> -_ _ http llwww mccampbel]corn E-mail mamQmccampbell cam <br /> . Advanced GeoEnvironmental,Inc Client Protect ID Three B's Date Sampled 09/05/02 <br /> 837 Shaw Road Date Received 09/06/02 <br />' Client Contact Tum Cuellar Date Extracted 09109102-09111102 <br /> Stockton, CA 95215 <br /> [Client P O Date Analyzed 09/09102-09/11/02 <br /> IGasoline Range(C&C12)Volatile Hydrocarbons as Gasoline with STEX and MTBE* <br /> Eatraction method SW5030B Analytical methods SW8021Bl8015Cm Work Order 0209079 <br />' Lab ID Chent ID Matrix TP= MTBE Benzene I Toluene lbenzene Xylencs <br /> 001A MW1/090502 W 2000,a ND<330 520 29 34 120 10 103 <br />' 002A MW2/090502 W 2000,a ND<50 540 100 26 120 10 104 <br /> 003A MW3/090502 W 6500,a ND<400 1300 70 140 240 50 103 <br />' 004A MW4/090502 W ND 53 ND ND ND ND 1 97 7 <br /> 005A MW5/090502 W 310,a NDK10 17 060 ND ND I --# <br />' 006A MW6/090502 W 1900,a ND<150 420 13 20 16 10 108 <br /> 1 <br /> 1 <br /> Reporting Limit for DF=i W 50 50 0 5 05 05 05 1 lig/L <br />' ND means not detected at or <br /> above the reporting limit S NA NA NA NA NA NA 1 mg/K9 <br /> 'water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,wipe samples in ug/wipe,product/oil/non-aqueous liquid samples in <br /> mg/L,and TCLP extracts in ug/L <br /> #1 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 significant(aged gasoline9),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,i)liquid sample that <br />' contains greater than—2 vol %sediment,l)reporting limit raised due to high MTBE content,k)TPH pattern that does not appear to be derived from <br /> gasoline(aviation gas) m)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />