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1 <br /> 110 2nd Avenue South,##D7,Pacheco,CA 94553-5560 <br /> McCAN PBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br />' http./Lwww.mccamnbell,pom E-mail main@mccampbell com <br /> • <br /> Advanced GeoEnvironmental Client Protect ID Marlowe Property Date Sampled 03/23/99 <br /> 4005 North Wilson Way Date Received 03/24/99 <br />' Stockton,CA 95205 Client Contact Tun Cuellar Date Extracted 03/24/99 <br /> Client P O Date Analyzed 03/24/99 <br /> Gasoline 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 TPA(g)+ MTBE Benzene Toluene Et Recovery <br /> zeneg <br /> en- Xylenes °Burro ate <br /> 05737 VW1/3-23-99 Air 11,000,1 --- 15 340 130 810 --" <br /> I <br /> Reporting Limit unless Air 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND means <br /> not detected above the 8�S <br /> reporting limit S 1 0 m 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 /> "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 gasoline9,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, )no recognizable pattern <br /> DHS Certification No 1644 // Edward Hamilton,Lab Director <br />