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1 - <br /> McCAMPBELL ANALYTICAL INC 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> Tele 510-798-1620 Fax 510-798-1622 <br /> ' Advanced GeoEnvironmental Client Project ID Chapin Bros Date Sampled 07/29/95 <br /> 1803 West March Lane,Ste A Date Received 08/01/95 <br /> I <br /> Stockton,CA 95207 Cheat Contact Bob Marty Date Extracted 08/01-08/02/95 <br /> Client P O Date Analyzed 08101-08/02/95 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,mth BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 California RW CB SF Day Re on method GCFID 5030 <br /> Lab ID Cheat ID Matrix TPH(g){ Benzene Toluene Et yyIrbe n- Xylenes Surrogate% a <br /> 55023 MW-I/7-29-95 W 27,OOO,a 7200 1100 440 1800 103 <br /> 55024 MW-2/7-29-95 W ND ND 076 ND ND 106 <br /> 55025 MW-3/7-29-95 W 2800,b,d 68 52 57 81 107 <br /> 1 55026 MW-4/7-29-95 W 140,000,0 23,000 31,000 34,000 17,000 106 <br /> Reporting Limit unless other- W 50 ug/L 05 05 05 05 <br /> wise stated,ND means not de- <br /> tected above the reporting limit S 10 mg/kg 0 005 0 005 0 005 0 005 <br /> *water and vapor samples are reported in ug1L,soil samples in mglkg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> + The following descriptions of the TPH chromatogram are curion in nature and McCampbell Analytical is not <br /> responsible for their interpretation a)unmodified or weaklymodified gasoline is siTsi fncant,b) heavier gasoline <br /> range compounds are si&�icant(aged gasoline?),c)hghtergsoline rane compounds(the most mobile action) <br /> are significant, d) �asol"me range comounds having broad chromatovaphic peaks are significant, biologically <br /> altered gasoline?, e TPH pattern thatdoes not appear to be derived from gasoline (?),f) one to a few isolated <br /> 1 peaks present,g)stronglyy aged asoline or diesel ran a compounds are significant,h)lighter than water immiscible <br /> sheen is present,i) liquid samp�e that contains grea er than 5 sol %sediment,�} no recognizable pattern <br /> ' DHS Certification No 1644 �! Edward Hamilton,Lab Director <br />