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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> MGCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> httR//www mccampbell corn E-mail main@mccampbell com <br />' Advanced GeoEnvironmental Client Project ID Top Filling Station Date Sampled 10/27/00 <br /> (95-0130) Date Received 11/01/00 <br /> 4005 North Wilson Way <br /> IStockton, CA 95205 Client Contact Tim Cuellar Date Extracted 11/02-11/03/00 <br />' Client P O Date Analyzed 11/02-11103100 <br /> Gasolene Range(C6-Cl2)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 /> 51917 M W 1/102700 W ND ND ND ND ND ND 101 <br /> 51918 MW2/102700 W ND ND 0 53 051 ND ND 101 <br /> 51919 MW3/I02700 W 410,a 110 19 33 6 4 42 -_# <br />' 51920 MW4/102700 W 400,a ND 13 46 98 76 100 <br /> 51921 MW5/102700 W 5700,a ND<20 320 72 400 200 99 <br /> 51922 VW1B/102700 W 240,000,a ND<600 31,000 57,000 5300 26,000 99 <br /> I . 51923 Vw1C//102700 W 240,000,a ND<600 39,000 51,000 4600 22,000 101 <br /> 51924 VWA102700 W 110,000,a 820 28,000 6300 3300 12,000 101 <br /> I51925 V /102700 W 43,000,a 8600 6000 3800 1200 6200 98 <br /> Reporting unless W 50 ug/L 5 0 0 5 0 5 0 5 0 5 <br /> otherwise statedted,,ND means <br /> not detected above the <br /> 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 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 /> i 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 gasoline",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 °10 sediment,l)no recognizable pattern <br /> I <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> i <br />