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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 /> hup l/www mccampbell com E-mail main @mccampbel I com <br /> Advanced GeoEnvironmental Client Protect ID Mossdale Date Sampled 10/29& 11/01/99 <br /> 4005 North Wilson Way Date Received 11/05/99 <br /> Stockton,CA 95205 Client Contact Bill Little Date Extracted 11/05-11/11/99 <br /> Client P 4 Date Analyzed 11/05-11/11/99 <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 /> Lab ID Client ID Matrix TPH(g)` MTBE Benzene Toluene zene Ethylben- Xylenes %Recovery <br /> Surrogate <br /> 24884 B1-10' S ND ND ND ND ND ND 98 <br /> 24885 BI-151 S 2 5,g ND ND 0 011 ND 0 013 107 <br /> 24886 B 1-20' S ND ND ND ND ND ND 97 <br /> 24887 B1-25' S ND ND ND ND ND ND 100 <br /> 24888 B2-10' S ND ND ND ND ND ND 101 <br /> i24889 B2-15' S 3 O,a 0 079 0 023 0 014 0 063 0 063 102 <br /> • 24890 B2-20' S ND ND ND ND ND ND 98 <br /> 24891 B3-10' S ND ND ND ND ND ND 97 <br /> 24892 B3-15' S ND ND ND ND ND ND 102 <br /> 24893 B3-20' S ND ND ND ND ND ND 103 <br /> 24894 B4-15' S ND ND ND ND ND ND 95 <br /> 24895 B4-20' S ND ND ND ND ND ND 95 <br /> I24896 B5-15' S ND ND ND ND ND ND 95 <br /> 24897 B5-20' S ND ND ND ND ND ND 96 <br /> IReporting Limit unless W 50 ug/L so 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected above <br /> the reporting limit S 1 0 mg/kg 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 /> V 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 rangecompounds are significant(aged <br /> I 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 j)no recognizable pattern <br /> DHS Certification No 1644 ,� �i Edward Hamilton,Lab Director <br />