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I , I <br /> 110 Second Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' / E-mail main@mccampbell corn <br />' Advanced GeoEnvironmental Client Project ID Grantlme Gas&Food Date Sampled 12/17/98 <br /> 4005 North Wilson Way Date Received 12/22/98 <br />' Stockton, CA 95205 Client Contact Bill Little Date Extracted 12/24/98 <br /> Client P O Date Analyzed 12/26-12/28/98 <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 GCFID(5030) <br />' <br /> Lab ID Client ID Matrix TPH(g)* MTBEthylben- %Recovery <br /> zene E Benzene Toluene Xylenes Surrogate <br /> 00755 MW-1/ W 57,a 340 37 ND 21 15 108 <br /> 12-17-98 <br />' 00756 MW-2/ W ND ND 10 ND 23 29 111 <br /> 12-17-9$ <br /> 00757 12 W 98 W ND ND ND ND ND ND ---" <br />' 00758 MW-4/ W I90,g,h 51 49 ND 064 ND 110 <br /> 12-17-98 <br /> 00759 MW-5/ W 160,g,h 31 ND ND 062 ND 106 <br />' 12-17-98 <br /> 00760 MW-6/ W ND ND ND ND ND ND 119 <br /> 12-17-98 <br /> lie <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 limit S 1 0 mg/kg z '005 0 005 0 005 0 005 0 005 <br />' <br /> " water and vapor samples are reported in ug/L,wipe samples in ug/wipe,sod and sludge samples in mg/kg,and all TCLP and SPLP extracts <br /> in ug/L <br />' Of 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 sigmficant(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 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,l)no recognizable pattern <br />' // <br /> DHS Certification No 1644 /IV—Edward HainiIton,Lab Director <br />