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110 2nd Avenue South, #D7,Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> Advanced GeoEnvironmental Client Project 1D Lockeford Beacon Date Sampled 04/04/96 <br /> J P <br /> 1803 West March Lane,Ste A Date Received 04/05/96 <br /> Stockton,CA 95207 Client Contact Kevin McKibben Date Extracted 04/05/96 <br /> Client P O Date Analyzed 04/05/96 <br /> Gasoline Range(C6-C12) Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030 modified 8015 and 8020 or 602 California RW CB SF Bay Region)method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- Xylenes % Rec <br /> zene Surrogate <br /> 63015 MW-2/4-4-96 W ND ND ND ND 20 99 <br /> 63016 MW-3/4-4-96 W ND ND ND ND 092 104 <br /> 63017 M W-6/4-4-96 W ND ND ND ND ND 102 <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 ug/L,soil 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 weakly modified gasoline is significant,b) heavier gasolme <br /> range compounds are signifcant(aged gasolme'%c)lighter gasolme range compounds(the most mobile fraction) <br /> are sigriificant, d) asoIme range compounds having broadchromato aphic peaks are significant, biologically <br /> alteredd gasoline?, e-) TPH pattern that does not appear to be derived om gasoline (?),f) one to a few isolated <br /> peaks present,g}stronglyaged gasoline or diesel range compounds are significant,h)lighter than water immiscible <br /> sheen is present,i) liquidd samp a that contains greater than_ 5 vol % sediment,J) no recognizable pattern <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />