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' 110 2nd Avenue South #137 Pacheco, <br /> CA 94553-5560 <br /> McCAWBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' h //www mccam bell com E-mail main@mceampbell com <br />' <br /> Advanced GeoEnvironmental Client Project ID Arco Mini Mart Date Sampled 04/24/01 <br /> 837 Shaw Road Date Received 04/25/01 <br />' Stockton, CA 95215 Client Contact Bill Little Date Extracted 04/25-04/27/01 <br /> Client P Cl Date Analyzed 04/25-04/27/01 <br /> Gasoline Range(C6-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 QUID(5030) _ <br /> Lab 1D Client iD Matrix TPH(g)+ MTBE Benzene Toluene Ethyl Xylenes %Recovery <br />' benzene Surrogate <br /> 66117 OE�O1 W 5700,a 1400 90 t l 150 97 102 <br /> 66118 042 0 W 1000,a 85 27 84 32 150 99 <br /> VW166119 MWI W ND ND ND ND 056 062 104 <br /> 042401 <br /> 66120 MW2 W ND 9 6 10 ND 2 0 5 9 103 <br /> 66121 OMW31 W ND 5 7 ND 059 ND 2 2 103 <br /> 66122 OMW41 W 15,000,a ND<20 19 24 530 840 102 <br /> 66123 0MW 1 W 3300,a 1300 74 14 260 160 106 <br /> 661.24 OMW�1 W ND 7 5 ND 060 ND ND 109 <br /> 66125 0MW71 W ND ND ND ND ND ND 114 <br /> 66126 OMW8 W ND 120 ND ND ND ND 102 <br /> 66127 OMW91 W ND ND ND ND ND ND 108 <br />' 66128 042401 W ND ND ND ND ND ND 109 <br /> MW10 <br /> 66129 042401 MW1 EA W ND 180 ND ND ND ND 97 <br /> 66130 042401 W ND 460 ND ND ND ND 99 <br /> MW11B <br /> Reporting Limit unless W 50 ug/L 50 0 5 05 0 5 0 5 <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 mg/kg,and all TCLP and SPLP extracts <br /> i in ug/L <br /> "cluttered chromatogram,sample peak coelutes with surrogate peak <br /> The following descriptions of the TPH chromatograrn are cursory in nature and McCampbell Analytu.al is not responsible for their <br /> interpretation a) unmodified or weakly modified gasoline is significant, b) heavier gasoline range compounds are significant(aged <br /> gasoi re"), t.) l,ghter gaschne maangc cc poLnds (the .i1uS� riiobi a lia'tl0n) b ) g rip ii us navmg oroaa <br /> 1 4 � are al lu fiLdi]l, U aauiluC Id[I C W[ O n <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 %sediment,1)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />