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' 110 2nd Avenue South #D7 Pacheco CA 94553-5560 <br /> McCampbell Analytical IncTelephone 925-798 1620 Fax 925-798-1622 <br /> hup 11 mccampbell com E-mail mam@mccampbell com <br />' Advanced GeoEnvironmental, Inc Client Project ID Former Curtiss Pontiac Date Sampled 07/23/02 <br /> • 837 Shaw Road Date Received 07/25/02 <br />' Stockton, CA 95215 Client Contact Brian Millman Date Extracted 07127/02-07/30/02 <br /> Client P 0 Date Analyzed 07127/02-07/30102 <br />' Gasoline Range(C&C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0207356 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylbenzene Xylenes DF %SS <br /> 001A M W 1 a/072302 W ND N/A ND ND ND ND 1 967 <br />' 002A MW1b/072302 W 30,000,a N/A 7700 1900 1200 2000 20 973 <br /> 003A MW2a/072302 W ND NIA ND ND ND ND 1 992 <br />' 004A MW3/072302 W ND N/A ND ND ND ND 1 99 4 <br /> 005A MW41072302 W 12,000,a N/A 3500 150 800 460 10 104 <br /> 006A MW5/072302 W ND N/A ND ND ND ND 1 98 3 <br /> 007A MW6/072302 W ND N/A ND ND ND ND 1 995 <br /> 008A MW2b/072302 W ND N/A ND ND ND ND 1 991 <br /> 009A MW7/072302 W ND N/A 066 0 82 ND 092 1 996 <br /> I <br /> Reporting Limit for DF=1, W 50 50 0 5 0 5 0 5 05 ug/L <br /> ND means not detected at or <br /> above the reporting limit S 10 0 05 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 /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> +The following descnptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for then'interpretation a) <br /> unmodified or weakly modified gasoline is significant,b)heavier gasoline range compounds are sngnificant(aged gasoline?),c)lighter gasoline range <br /> I compounds(the most mobile fraction)are significant,d)gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> altered gasolinc9,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,1)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 />