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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South,#D7,Pacheco,CA 94553 <br /> • Tele 510-798-1620 Fax 510-798-1622 <br /> Advanced GeoEnvironmental,Inc Client Project ID Chase-Madison Date Sampled 05/06/97 <br /> 1803 West March Lane,Suite A Date Received 05/08/97 <br /> Stockton,CA 95207 Client Contact Kevin McKibben Date Extracted 05/11/97 <br /> Client P O Date Analyzed 05/11/97 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasohne*,with Methyl Cert-Butyl Ether*&BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 Cali Tnla RW CB SF Bay Re on method GCF1D(5030 <br /> Lab ID Client ID Matrix TPH(g)+ MTBE Benzene Toluene Ethylben- Xylenes % Rec <br /> zene Surrogate <br /> 76237 MW-I W 340,b,a ND 15 054 18 18 99 <br /> 76238 MW-2 W ND ND ISTD ISTD ND ND 99 <br /> 76239 MW-4 W ND ND ND ND ISTD ND 100 <br /> 76240 MW-5 W 55,b ND ND ND ND 54 99 <br /> 7624I MW-8 W ND ND ND ND ND ND 100 <br /> 76242 MW-11 W ND ND ND ND ND ND 99 <br /> . 76243 MW-12 W ND ND ND ND ND ND 101 <br /> 76244 MW-13 W ND ND ND ND ND ND 100 <br /> 76245 MW-18 W ND ND ND 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 lumt 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 in 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 weaklymodified gasoline is significant,b)heavier gasoline <br /> range compounds are sngnificant(aged gasoline'?),c)lighter gasoline range compounds(the most mobile fraction) <br /> are significant, d) asolliinne range compounds having broad-chromatogaphic peaks are significant,biologically <br /> altered gasohne9,eg} TPH pattern that does not appear to be derived fiom gasoline (?),#) one to a few isolated <br /> • peaks present,g)stronglyaged gasoline or diesel range compounds are significant,h)lighter than water unmiscible <br /> sheen is present,i) liquidd sample that contains greater than- 5 vol % sediment,j)no recognizable pattern <br /> DHS Certification No 1644 //���Edward Hamilton,Lab Director <br />