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1 <br /> 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 1 14 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbcll com E-mail main@mccampbell com <br /> 1 Advanced GeoEnvironmental Client Project ID Ripon Farms Services Date Sampled 02/27/01 <br /> 837 Shaw Road Date Received 02/28/01 <br /> Stockton, CA 95215 Client Contact Bill Little Date Extracted 02/28/01 <br /> Client P O Date Analyzed 02/28-03/01/01 <br /> 1 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 GCFID(5030) <br /> Lab ID Client ID Matrix TP1I(g)+ Ethyl-MTBE Benzene Toluene Xylenes %Recovery <br /> benzene Surrogate <br /> 60948 Inlet Air 550,a --- 050 16 1 1 43 107 <br /> ' 60949 Outlet Air 75,a -- ND ND ND 073 104 <br /> 1 <br /> 1 <br /> li <br /> 1 <br /> 1 <br /> 1 <br /> 1 Reportmg Limit unless Air 50 ug/L 50 0 5 0 5 0 5 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 10 mg/kg DOS 0005 0005 0 005 0 005 <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 /> 1 '°cluttered chromatogram,sample peak coelutes with surrogate peak <br /> 'The following descriptions of the TPH chromatogram are cursory to 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 (1) gasoline range compounds having broad <br /> chromatographic peaks are significant,biologically altered gasoline9,e)TPH pattern that does not appear to be derived from gasoline(9),f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,l)no recognizable pattern <br /> 1 DHS Certification No 1644 (—Edward Hamilton,Lab Director <br /> 1 <br />