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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 /> http./1www.mccatn12bell.cam E-mail main@mecampbell com <br /> Advanced GeoEnvironmental Client Project ID MBP-Lodi Date Sampled 05/20/99 <br /> 4005 North Wilson Way Date Received 05/21/99 <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 05/23-05/26/99 <br /> Client P O Date Analyzed 05/23-05126199 <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 GC-FID(5030) <br /> Lab ID Client 1D Matrix TPH(g)} MTBE Benzene Toluene Ethylben Xylenes %Recovery <br /> ' zene Surrogate <br /> 11643 MW-5 W 660,a 60 10 13 14 170 96 <br /> 11644 BMW-3 W 550,a ND<10 1 12 46 55 28 106 <br /> 11645 BMW-2 W 95,a 56 1 3 1 8 1 2 53 --- <br /> 11646 <br /> -11646 BMW-5 W 180,a 80 064 3 1 066 3 3 119 <br /> 11647 BMW-I W 760,a ND<10 20 13 11 29 --- <br /> 11648 <br /> -11648 BMW-4 W 67,000,a 470 840 5200 2900 19,000 95 <br />' Reporting Limit unless W 50 ug/L so 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above' <br /> the reporting limit mg/kg S 1 0 m /k 005 0 005 0 005 0 005 0 005 <br /> water and vapor samples are reported in ug/L,wipe samples in ughmpe,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 />' gasolinel), 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 denved 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 l)no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton, Lab Director <br /> 1 <br />