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110 2nd Avenue South,#D7,Pacheco,CA 44553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> hqR//www inccampbell com E-mail mam@mccampbell com <br /> Advanced GeoEnvirorimental Client Project ID Langston's Market <br /> Date Sampled 061281101 <br /> 837 Shaw Road Date Received 06/29/01 <br /> I Stockton, CA 95215 Client Contact Calvin Lee Date Extracted 06/29-07/09/01 <br /> Client P 0 Date Analyzed 06129-07/09/01 <br />' Gasoline Range(C6-02)Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether* &BTEX* <br /> EPA methods 5030,modified 8015,and 8420 or 602,California RWQCB(SF Bay Region)method GCFID(5030) <br /> Lab 1D Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethyl- Xylenes %Recovery <br /> -1 1' benzene Surrogate <br /> 71357 MW1/062801 W 7300,a ND<10 230 210 240 1300 101 <br /> 71358 MW2/062801 W ND ND ND ND ND ND 100 <br /> I71359 MW3/062801 W ND 9 2 ND ND ND ND 102 <br />' 71360 MW4/062801 W ND ND ND ND ND ND 100 <br /> 71361 MW5/062801 W 3500,a 190 140 78 53 20 9 <br />' 71362 MW6/062801 W ND ND ND ND ND ND 103 <br /> 71363 MW71062801 W ND ND ND ND ND ND 99 <br />' . 71364 MW8/062801 W ND ND ND 3 9 ND 1 5 102 <br /> 1 <br /> 1 <br />' Reporting Limit unless yy 50 ug/L 5 0 05 05 0 5 0 5 <br /> otherwise stated,ND means <br /> not detected above the S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br /> reporting limit <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 /> 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 gasohnev e)TPH pattern that does not appear to be derived from gasoline(?) 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,t)liquid sample that contains greater than—5 vol %sediment,})no recognizable pattern <br />' DHS Certification No 1644 Edward Hamilton,Lab Director <br /> 1 <br />