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1 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCaTnpbell Analytical Inc Telephone 925-798-1620 Fax 925-798-1622 <br /> http Ilwww mccampbell com E mail mamQmccampbell com <br />' Advanced GeoEnvlronmental,Inc Client Protect ID Fernando's Place Date Sampled 05/22/02 <br /> 837 Shaw Road Date Received 05/23/02 <br />' Stockton, CA 95215 Client Contact- Paul Dotson Date Extracted 05125102-05129/02 <br /> Client P O Date Analyzed 05/25/02-05/29/02 <br />' Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline with BTEX and MTBE* <br /> Extraction method SW5030B Analytical methods SW8021B/8015Cm Work Order 0205329 <br />' Lab ID Client ID Matrix TPH(g) MTBE Benzene Toluene Ethylhenwrie Xylenes DF %SS <br /> OOIA MW1/052202 W 140,000,a ND<1000 36,000 48,000 2400 12,000 200 108 <br />' 002A MW2A/052202 W ND ND ND ND ND ND I 979 <br /> 003A MW2b/052202 W 18,000,a ND<250 1900 1800 180 1500 50 104 <br />' 004A MW3a/052202 W 8100,a ND<450 930 37 ND<10 1200 20 997 <br /> 005A MW3b/052202 W 21,000,a ND<50 670 310 470 1900 10 —# <br /> 1 <br /> 1 <br /> 1� <br /> I <br /> I <br /> Reporting Limit for DF=1, W 50 5 0 05 05 0 5 0.5 ug/L <br /> 1 ND means not detected at or <br /> above the reporting limit S 10 005 0 005 6-605 0 005 0 005 mg/Kg <br /> *water and vapor samples are reported in ugfL,soil and sludge samples in mgft,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 signiftcant(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 gasoline9,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 un niscible sheen/product is present,i)liquid sample that <br /> contains greater than—2 vol %sediment,1)no recognizable pattern,k)TPH pattern that does not appear to be derived from gasoline(aviation gas) <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br />