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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 /> h //www mccam bell com E-mail main@mccampbell coin <br />' Advanced GeoEnvironniental Client Project ID Arco Mint Mart Date Sampled 06/07/00-06/09100 <br /> 4005 North Wilson Way Date Received 06/13/00 <br /> tStockton,CA 95205 Client Contact William Little Date Extracted 06/13/00 <br />' Client P O Date Analyzed 06/13/00 <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 Matnx TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes %Recovery <br /> zene Surrogate <br /> 40169 MW8-30 S ND ND ND ND ND ND 93 <br />' 40170 MW8-45 S ND ND ND ND ND ND 92 <br /> 40171 MW9-30 S ND ND ND ND ND ND 95 <br /> 40172 MW9-40 S ND ND ND ND ND ND 95 <br />' 40173 MW10-30 S ND ND ND ND ND ND 94 <br /> 40174 MW10-40 S ND ND ND ND ND ND 94 <br />'. 40175 MWII-30 S ND ND ND ND ND ND 93 <br /> 40176 MW 11-40 S ND 014 ND ND ND ND 93 <br /> 40177 MW 11-60 S ND Oil ND ND ND ND 94 <br /> 40178 MW 12-30 S ND 0 15 ND ND ND ND 95 <br /> 40179 MW1240 S ND 051 ND ND ND ND 94 <br /> 40180 MW12-50 S ND 0083 ND ND ND ND 94 <br /> 40181 MW 12-60 S ND 016 ND ND ND ND 94 <br /> __r I <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 10 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 fullowmg descriptions of the TPH chromatogram are cursory in nature and McC.ampbell 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 /> gasolme'7), 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(1),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,j)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />