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' 110 2nd Avenue b.,udi #D7 Pacheco CA 94553 5560 <br /> McCampbell Analytical Inc Telephone 925 799-1620 Fax 925-798 1622 <br /> F14 I <br /> 4 littp//www mccampbeli cam E-mail mai a mccanipbell corn <br /> Advanced GeoEnvironmental Client Project ID Chapin Ground Water Date Sampled 04/24102 <br /> Exe <br /> 837 Shaw Road Date Received 04/25/02 <br /> Stockton, CA 95215 Client Contact Bill Little Date Extracted 04126102 <br /> Client P O Date Analyzed 04/26/02 <br /> ' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline with BTEX and MTBE' <br /> Extraction method SW5030B Analytical methods SW8021B18015Cm Work Order 0204416 <br /> Lab ID Client ID Matnx TPH(g) MTBE Benzene Toluene Ethylbenzenc Xyienes DF %SS <br /> QOiA Outlet w ND ND ND I ND I ND ND 1 109 <br /> 002A Inlet I W I 15,000,a NDc50 1300 160 i 78 2800 1 10 101 <br /> I I <br /> r <br /> I I <br /> I I I <br /> I I <br /> I , <br /> i I <br /> I <br /> I , <br /> � I I <br /> I I I i I <br /> Reporting Limit for DF=1 i W I 50 5 i 05 05 05 I 05 ug/L <br />' ND means not detected at or i <br /> above the ieporting limit S I 1 005 0 005 1 0 005 0 005 0 005 mg/Kg <br /> ,` l <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 uglL <br />' DF=dilution tactor <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br />' +The following descnptions of the TPH chromatogram are cursory in nature and McCamphrll gtialvmal is not responsible for their+ntcrprctation a) <br /> unmodified or weakly modified gasoline Is significant b)heavier gasoline range compounds are significant(aged gasohnel),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 trom 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,a)no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br />