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• ��l s <br /> 110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> 7MCCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> Advanced GeoEnvironmental,Inc Chent Project ID Chase Chevrolet-Van Date Sampled 02/05/97 <br /> 1803 West March Lane, Suite A Buren <br /> Date Reserved 02/06/97 <br /> Stockton,CA 95207 Client Contact Kevin McKibben iDate Extracted 02106-02107197 <br /> Client P 4 Date Analyzed 02/06-02107197 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,with Methyl tert-Butyl Ether*&BTEX* <br /> EPA methods 5030 modified 8415 and 8Q20 or OY02 California RW CB SF Bay Re on method GCF11)(503Q <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes % Rec <br /> zene Surrogate <br /> 73500 MW-312-5-97 W 170,000,a ND< 200 10,000 37,000 3600 25,000 105 <br /> 73501 MW-612-5-97 W 830,a ND 56 17 17 190 103 <br /> 73502 MW-7/2-5-97 W 6700,a ND< 13 85 li 230 540 102 <br /> 73503 MW-9/2-5-97 W 23,000,a ND< 83 270 370 1500 5100 105 <br /> 73504 MW-1012-5-97 W ND ND ND ND ISTD ND 102 <br /> 73505 MW-14/2-5-97 W ND ND ND ND ND ND 105 <br /> 73506 MW-15/2-5-97 W ND ND ND ND ND ND 104 <br /> i73507 MW-1612-5-97 W IT'D ND ND ND ISTD ND 102 <br /> 73508 MW-1712-5-97 W ND ND N'D ND ND ND 100 <br /> Reporting Limit unless W 50 ug/L 50 05 05 05 05 <br /> otherwise stated,ND <br /> means not detected <br /> above the reporting limit S 10 mg/kg 005 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug/L,soil and sludge samples in mg/kg,and all TCLP extracts m mg/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 <br /> responsible for their interpretation a)unmodified or weakly modified gasoline is significant,b)heavierggasoline <br /> range compounds are significant(aged gasoline?),c)hghter gasoline range compounds(the most mobile Sraction) <br /> are si ificant,d) gasoline range compounds having broad chromatographic peaks are significant,biologically <br /> alterewgasolme , e) TPH pattern that does not appear to be derived from gasoline (1), 0 one to a few isolated <br /> 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 �.�,/ Edward Hamilton,Lab Director <br />