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t <br /> ' -Jill MEMO <br /> I A."LE 1 C1J1MLATNE SUMMARY OF CONCENTRATIONS(ngt gMER mm )OF <br /> PETROLEUM I4yDp -ARBCNS IN SOIL SAMPLES, <br /> ,-; XON <br /> RS 7-3942,4444 PERSHING AVENUE,STOCKTON,CAI.IFORNIA���. <br /> Total <br /> Petroleum <br /> Ethyl- Hydro- <br /> Depth <br /> Sample- TQlll�a� � X� -od=5- <br /> Composles of soils excavated during tattle removal-HI.A <br /> ._. <br /> Composite samples <br /> <10 <br /> SPl(1-4) 4910!1186 NA NA NA NA <10 <br /> ' 5P1{5-8} 09109/86 NA NA NA NA <10 <br /> SPl(9-12) 09/09/86 <br /> i NA 35 3 <br /> SP2(1-4) NA NA NA <14 <br /> 09/09186 NA NA Np NA ` <br /> SP2(5-8) 09/09/86 NA NA NA NA <14 <br /> SP2(9-12) 09109!86 <br /> Closure samples from bottom of expanded excavation-HLA <br /> i <O.QS NA <0.5 <10 <br /> EX-1 01123186 20.0-21.0 <O.OS 82 NA 260 6,900 <br /> EX-2 49/23,86 2t1.0-21.0 77 <br /> EX-3 09/2"3/86 20.0-21.0 <0.05 0.40 NA 4.64 720 <br /> 34 <br /> EX-4 09/23/86 20.4-21.0 0.10 14 NA <0.05 <10 <br /> EX-5 09/23/86 20.0-21.0 <0.05 <0.05 NA <0.05 <10 <br /> EX-6 09123/86 20.0-21.0 <0.05 <0.05 NA <10 i <br /> EX-7 <br /> 09/23186 20•0-210 <0.05 <0.05 NA <0.05 <br /> dote: HLA = Harding Lawson Associates; AEMC = American Environmental Management t <br /> Corporaufln;EA EA Engineering,Sci <br /> = ence.and Technology. <br /> s <br /> Composite samples of soils stack filed from expanded excavation before aeration-HLA <br /> 5,640 <br /> SPI NA <br /> -4 09/23/86 NA NA NA NA 5,100 <br /> SP5-8 09/23/86 NA NA 1,400 <br /> SP9-12 09/23/86 NA NA NA NA <br /> i�. led soils from expanded excavation before aeration-IT.A <br /> Composite samples of stockpiled <br /> <0.05 <0.05 NA <0.05 10 <br /> RSP(1-4) 10/03/36 <0.05 NA <O.flS <10 <br /> RSP(5-8) 10/03/86 <0.Q5 <br /> RSP(9-12) 10/03/86 NA NA NA NA 1,000 <br /> Composite samples following aeration(worst case)-HLA <br /> NA NA NA 200 <br /> { AS-1 11/13/86 NA NA NA NA 25 <br /> SF3-1 11j86 ; <br /> m30lexxon1739471Lb1 <br />