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�1 <br /> 110 2nd Ave South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> [h1UP,/—/w—ww_mccampbgll com E-mail main@mccampbell com <br /> r• <br /> Ground Zero Analysts,Inc Client Project ID #256, Gabbard Date Sampled 0(20/99 <br /> 1714 Main Street Date Received 01/21/99 <br /> Escalon, CA 95320 CIient Contact John Lane Date Extracted 01/22/99 <br /> Client P O Date Analyzed 01/22-01/23199 <br /> Gasoline Range(C&M)Volatile Hydrocarbons as Gasohne*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8020 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> -zene Surrogate <br /> 02120 GASB1- W 2700,b0,h,i --- 23 096 35 39 95 <br /> 26GW <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit m S 1 0 /k 005 0 005 0 005 0 005 0 005 <br /> mg/kg <br /> water and vapor samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <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 <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasolme'), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br /> chromatographic peaks are significant, biologically altered gasoline', e) TPH pattern that does not appear to be derived from gasoline <br /> (stoddard solvent9), f)one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter <br /> than water immiscible sheen is present,i)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> DHS Certification No 1644 11Z Edward Hamilton,Lab Director <br />