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' 110 2nd Avenue South,#137,Pacheco,CA 94553-5560 <br /> 4McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http//www mccampbell corn E-mail main@mccarnpbell com <br /> • <br />' Advanced GeoEnvironinental Client Project ID Langston's Market Date Sampled 03/29/01 <br /> 837 Shaw Road Date Received 03/30/01 <br />' Stockton,CA 95215 Client Contact Calvin Lee Date Extracted 03/30-04/02101 <br /> Client P O Date Analyzed 03/30-04/02/01 <br /> tGasoline Range(C&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 GCFID(5030) <br />' Lab ID Client ID Matrix x TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes "/o Recovery <br /> Surrogate <br /> 64260 MW1/ W 6100,a ND<30 240 240 220 1100 101 <br /> 03-29-01 <br />' 64261 MW2/ W ND ND ND ND ND ND 103 <br /> 03-29-01 <br /> 64262 MW3/ W NO 17 ND ND ND ND 99 <br />' 03-29-01 <br /> 64263 MW4/ W ND ND ND ND ND ND 100 <br /> 03-29-01 <br /> 64264 MW5/ W 430,a 190 10 10 ND 085 111 <br />' 03-29-01 <br /> 64265 MW6/ W ND ND ND ND ND ND 99 <br /> 03-29-01 <br /> 64266 MW7/03-29-01 W ND ND ND ND ND ND 97 <br /> 64267 MW8/ W ND ND ND ND ND ND 97 <br /> 03-29-01 <br /> 1 <br /> 1 <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 limitS 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 /> t "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 signi5carit(aged <br />' gasohne9), 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('7),f) <br /> one to a few isolated peaks present,g)strongly aged gasoline or diesel range compounds are significant,h)lighter than water imrruscible <br /> sheen is present,i)liquid sample that contains greater than—5 vol %sediment,j)no recognizable pattern <br /> tDHS Certification No 1644 Edward Hamilton, Lab Director <br /> v� <br /> 1 <br />