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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 /> lam,//www mccampbell com E-mail main@mccampbeli com <br />' Advanced GeoEnvironrnental Client Protect ID Junco Truck Plaza Date Sampled 05/02/2000 <br /> 4005 North Wilson Way Date Received 05/04/2000 <br />' Stockton, CA 95205 Client Contact Bill Little Date Extracted 05/04-05109/2000 <br />' <br /> [Client P O Date Analyzed 05/04-05109/2000 <br /> Gasoline Range(C&C12)Volatile Hydrocarbons as Gasolme*,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 1D Matrix TPH(gy MTBE Benzene Toluene Ete n- Xylenes %SurrogateR <br /> c <br /> zen <br /> 37065 MW2 W 640,a 66 46 074 1 2 23 --- <br /> 37066 MW1 W 880,a 4800 101 15 15 26 98 <br />' 37067 MW3 W ND ND ND ND ND ND 95 <br /> 37068 MW4 W ND 91 ND ND ND ND 94 <br />' 37069 MWS W ND ND ND ND ND ND 96 <br /> 37070 MW6 W 130,b ND ND ND ND ND 90 <br />' 37071 MW7 W ND ND ND ND ND ND 102 <br /> 37072 MW8 W 240,b ND ND ND ND ND 91 <br />' 37073 DWI W ND ND ND ND ND ND 86 <br /> 1 <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 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 to ug/wipc 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 />' mteipmmlion a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are sigmficant(aged <br /> gasolme9), 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's e)TPH pattern that does not appear to be derived from gasoline(9),0 <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)ligmd sample that contains greater than 5 vol %sediment 1)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br /> I <br />