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_ 110 2nd Avenue South,##D7,Pacheco,CA 94553-5560 <br /> MICA VBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http l/www mcc_ampbell_com E-mail matn@mccampbell corn <br /> Advanced GeoEnvironmental Client Project ID Junco Truck Plaza Date Sampled 02/19/02 <br />' 837 Shaw Road Date Received 02/20/02 <br /> I Stockton,CA 95215 Client Contact Bill Little Date Extracted 02/22-02/26/02 <br /> rChent P O Date Analyzed 02/22-02/26/02 <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 /> 90811 DW- W ND ND ND ND ND ND 106 <br /> 19-0022 <br /> 90812 MW X22-19 W 330,a 2100 12 078 5 8 39 111 <br /> I90813 MW/02-19 W 240,a 93 061 083 ND ND 115 <br /> 02 <br />' 90814 MW30/02-19 W ND ND ND ND ND ND 102 <br /> 90815 MW4022-19 W ND ND ND ND ND ND 104 <br /> 90816 MWS//02-19- W ND ND ND ND ND ND 103 <br /> 90817 MW6//02-19 W 1200,b ND ND ND ND ND 103 <br /> 02 <br /> 90818 MW70122-19- W ND ND ND ND ND ND 102 <br /> 90819 MW8/02-19- W ND 60 ND ND ND ND 100 <br /> 02 <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]ttmt 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 mg/kg,and all TCLP and SPLP extracts <br /> in ug(L <br /> cluncred chromatogram,sam plo peak coelutes with surrogate peak <br /> i Me 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 gasolme9,e)TPH pattem that does not appear to be derived from gasoline(`) f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water immscible <br /> sheen is present,t)liquid sample that contains greater than—5 vol %sediment,l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br />