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McCAMPBELL ANALYTICAL INC 110 2nd Avenue South, #D7, Pacheco, CA 94553 Tele 510-798-1620 Fax 510-798-1622 ' [Advanced GeoEnvironmental ClientProjectID Jordon Real Estate Date Sampled 07/13/95 803 West March Lane,Ste A Date Received 07/18/95 tockton,CA 95207 Client Contact Bob Marty Date Edracted 07/22-07124/95 Client P O Date Analyzed 07/22-07/24/95 Gasoline Range (C6-C12) Volatile Hydrocarbons as Gasoline*,«ith BTEX* EPA methods 5030 modified 8015 and 8020 or 602 California RW CH SF Ba Re ton method GCFIp 5030 Lab ID Client ID Matrix TPH(g)+ Benzene Toluene Ethylben- X`lenes % Rec zene Surrogate 54422 MWA /7-13-95 W ND ND ND ND ND 100 ' 54423 MW-2/7-13-95 W ND ND ND ND ND 88 54424 MW-317-13-95 W 74j 22 ND 066 066 102 Reporting Limit unless other- W 50 ug/L 05 05 05 05 1 vase stated,ND means not de- tected above the reporting limit S 10 mg/kg 0 005 0 005 0 005 0 005 1 *water and %apor samples are reported in ug/L,soil samples in mg/kg,and all TCLP e\tracts in nig/L 4 cluttered chromatogram sample peak coelutes with surrogate peak + The following descri tions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their interpretation a unmodified or%,�eakly modflied gasoline is significant,b) heavier gasoline range compoundsare significant(aged gasoline?),c)lightergasoline range compounds(the most mobile I-raction) are significant, d) asoline range compounds having broad chromatographic peaks are significant biologically altered gasoline?,e- TPH pattern thaf does not appear to be derived Trom gasollne (?),f) one to a few isolated peaks present g)stronglvagedgasoline or diesel range compounds arc significant h)lighter than water immiscible sheen is present,i) liquid sample that contains greafer than- 5 sol % sediment,j) no recognizable pattern DHS Certification No 1644 Eduard Hamilton,Lab Director