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' 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MCCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccampbell com E-mail main@mccampbell com <br /> Advanced GeoEnvironmental Client Project ID Lodi Airport Date Sampled 08/22/01 <br />' 837 Shaw Road Date Received 08/23/01 <br />' Stockton, CA 95215 Client Contact Calvm Lee Date Extracted 08/23-08/24/01 <br /> Client P 0 Date Analyzed 08/23-08/24/01 <br />' Gasoline Range(C&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 TPH(g)+ MTBE Benzene Toluene Ethyl Xylenes %Recovery <br />' benzene Surrogate <br /> 75684 MWI/ W 68,e ND ND 2 8 ND ND 105 <br /> 082201 <br /> 75685 MW2/ W 77,e ND ND 2 7 ND ND 109 <br />' 082201 <br /> 75686 MW3/082201 W ND ND ND ND ND ND 107 <br />' 75687 DWI/ W ND ND ND ND ND ND 101 <br /> 082201 <br />' Reporting Limit unless W 50 ug/L 50 0 5 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limitm�g S 1 0 0 05 0 005 0 005 0 005 0 005 <br />' *water and vapor samples are reported in ugg11.,wipe samples to ug/wipe,soil and sludge samples to 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 /> gasoline?), c) lighter gasoline range compounds (the most mobile fraction) are significant, d) gasoline range compounds having broad <br />' chromatographic peaks are significant, biologically altered gasolinO, e) TPH pattern that does not appear to be derived from gasoline <br /> (aviation gas)),f)one to a few isolated peaks present, g)strongly aged gasoline or diesel range compounds are significant,h)fighter than <br /> water immiscible 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 /> 1 <br />