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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 /> Ihttp/hvwwmccaanocil.c E-mail main@mccampbell corn <br /> • <br /> IAdvanced GeoEnvironmental Client Project ID Nomellim Date Sampled 04/20/00 <br /> 4005 North Wilson Way Date Received 04/21/00 <br /> Stockton, CA 95205 Client Contact Tim Cuellar Date Extracted 04/24/00 <br /> Client P O Date Analyzed 04/24/00 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030 modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GyCFID(5030) <br />' Lab 1D Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl en- Xylenes %Recovery <br /> zene Surrogate <br /> 36210 Inlet Air 150,1 ND ND ND ND 13 107 <br /> 36211 Outlet Air 64,c ND 076 ND ND ND 99 <br /> lie <br /> I <br /> Reporting Limit unless Air 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br />' the reporting limit S 1 0 mg/kg 005 0 005 0 005 0 005 0 005 <br /> *water and vapor sampies are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SDLP extracts <br /> in ug/L <br />' 0 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 <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br />' gasoline?), c) lighter gasoline range compounds (the most mobile fraction) are significant d)gasoline range compounds having broad <br /> chromatographic peaks are signtficant,biologically altered gasoline),e)TPH pattern that does not appear to be derived from gasoline <br /> One to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds ate significant,h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 _Edward Hamilton,Lab Director <br />