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110 2nd Avcnue South, #137, Pacht,co, CA 94553 <br />' McCAMPBELL ANALYTICAL INC Tele 510-798-1620 Fax 510-798-1622 <br /> Advanced GeoEnvironmental Client Project ID Stockton PIating Date Sampled 05/23/95 <br /> 1803 West March Lane, Ste A Date Received 05/25/95 <br /> Stockton,CA 95207 Client Contact Bob Marty Date Extracted 05/25-05/28/95 <br /> Client P 0 Date Analyzed 05/25-05/28/95 <br />' Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline*,with BTEX* <br /> EPA methods 5030 modified 8013 and 8020 or 602 C&hforma R W C13SF Ba Re on method GCFID 5030 <br /> Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- Xylenes % Rec <br />' zene Surrogate <br /> 52809 MW 1-5/23/95 W 320,c 64 052 ND 066 104 <br /> 52810 MW2-5/23/95 W 260,c 071 ND 1 1 085 100 <br /> 52811 MW3-5/23/95 W 13,000,c 5300 160 640 220 103 <br />' 52812 MW4-5/23/95 W ND< 200aa ND< 1 ND< 1 ND< 1 ND< 1 120 <br /> as matrix interferent prevented sample from being injected at full strength <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 1 0 005 0 005 0 005 0 005 <br />{ * water and vapor samples are reported in u <br /> p p p g(L,soil samples mmg/kg,and all TCLP extracts in mg/L <br /> #cluttered chromatogram,sample peak coelutes with surrogate peak <br /> + The followm descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not <br /> responsible for heir interpretation a)unmodtfied or weakly modified gasoline is significant,b) h,avier gasoline <br /> range compounds are significant(aged gasoline 7),c)h tergasolme range compounds(the most mobile fraction) <br /> are signtficant, d) solme range compounds having f rioad chromatographic peaks are significant, biologically <br /> altered gasoline?,erPH pattern that does not appear to be derived from 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 sample that contains greater than 5 vol % sediment, ) no recognizable pattern <br /> IDHS Certification No 1644 �Y Edi and Hamilton,Lab Director <br /> x <br />