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' 110 2nd Avenue South,4137,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccarripbell corn E-mail main@nnccampbell cam <br />' Advanced GeoEnvironmental Client Project ID Junco Truck Plaza Date Sampled 04/10/01 <br /> 837 Shaw Road Date Received 04/11/01 <br />' Stockton, CA 95215 Client Contact Bill Little Date Extracted 04/11-04/16101 <br /> Client P O Date Analyzed 04/11-04/16/01 <br />' Gasoline Range(C6-C12)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 Ethyl- Xylenes %Recovery <br /> Benzene Surrogate <br /> 65256 MWl/01-10-01 W 1400,a 3300 31 30 55 92 106 <br />' 65257 0M / W 560,a 15 24 t 1 ND 25 109 <br /> 65258 01-10301 W ND ND ND ND ND ND 102 <br />' 65259 MW4/ W ND,i ND ND ND ND ND 92 <br /> 01-10-0I <br /> 65260 MW5/ W ND,t ND ND ND ND ND 95 <br />' 01-10-01 <br /> 65261 MW6/ W 140,b ND ND ND ND ND 107 <br /> 01-10-01 <br /> 65262 0MW�l W ND ND ND ND ND ND 99 <br /> 65263 MW1/ W 130,b ND ND ND ND ND 96 <br /> 01-10-01 <br /> 65264 DWI/ W ND ND ND ND ND ND 96 <br /> 01-10-01 <br />' Reporting Liniit unless W 50 ug/L so 0 5 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 samples are reported in ug/L,wipe samples in ug/wipe,soil and sludge samples in mglkg,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 gasohne7,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,I)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />