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110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> 4 McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> http//www mccampbell corn E-mail main@mccampbell cam <br />' Advanced GeoEnvuonntental Client Project ID MBP/Mossdale Date Sampled 05/31-06/01/01 <br /> 837 Shaw Road Date Received 06/05/01 <br />' Stockton, CA 95215 Client Contact Bill Little Date Extracted 06/06-06/08/01 <br />' Client P O Date Analyzed 06/06-06/08/01 <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 TPI-I(g) MTBEthyl- %Recovery <br /> E Benzene Toluene Xylenes Surrogate <br /> 69049 0 <br /> MWI. benzene 1 W 76,b 87 ND 0 79 ND ND 107 <br /> I69050 0 MW O1 W 910,bd 24 1 7 29 24 19 104 <br /> 69051 0 MW301 W ND 84 ND ND ND ND 98 <br />' 69052 05 31 01 W ND ND ND ND ND ND 98 <br /> 69053 0 MW501 W ND ND ND ND ND ND 96 <br /> 69054 DW-I W ND ND ND ND ND ND 102 <br /> 06-01-01 <br /> 1 <br />' Reporting Lirrut unless W 50 ug/L 5 0 0 5 05 0 5 0 5 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 0 05 0 005 0 005 0 005 0 005 <br />' <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 McCampbr,l] 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 /> gasolme9), 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,j)no recognizable pattern <br /> 1 <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />