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'q yy w <br /> F? <br /> TABLE 1 CUMULA'I'IVI?SiJMMARY OP CONCEN'i'RA'['fONS (in1'Ikb=P171tt)OE' <br /> PETROLEUM HYDROCARBONS IN SOIL.SAMPLES,FORWIt EXXON <br /> RS 7-3942,4444 PERSI-IING AVrNUL',STOCKTON,CALIFORNIA <br /> Total <br /> r Petroleum <br /> Sam Ie Depth Ethyl- hydro <br /> P B n- -n� Toluene 1 nr.n. �l.rt a rare n' <br /> J as r Pa c �(�� �ni <br /> Composite samples of soils excavated during tank removal-HLA <br /> SP1(1-4) 09/09/86 NA NA NA NA <10 <br /> <10 <br /> 8 <br /> 09/09/86 NA NA NA NA <10 <br /> SPI(9-12) 09/09/86 NA NA NA NA <br /> SP2(1-4) 09/09/86 NA NA NA NA 35 <br /> SP2(5-8) 091091$6 NA NA NA NA <10NA NA NA NA <30 <br /> SP2(9-12) 09/09/85 <br /> i ,. <br /> Clostire samples from bottom of expanded excavation-I-IL <br /> EX-1 W/23186 20.0-21.0 <0.05 80. 05 NA 260 6,900 <br /> <0.5 <10 <br /> EX-2 09/23/86 20.0-21.0 77 <br /> EX-3 09/23/86 20.0-21.0 <0.05 0.40 NA 0.64 60 <br /> 34 720 <br /> EX-4 09/23/86 20.0-21.0 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 09/23/86 20.0-21.0 <0.05 <0.05 NA <0.05 <10 <br /> EX-7 09/23/86 20.0-21.0 <0.05 <0.05 NA <br /> Note: HLA = Harding Lawson Associates; AEMC = American Environmental Management <br /> Corporation;EA=EA Engineering,Science,and Technology. <br /> Composite stnnples of soils stockpiled from expanded excavation before aeration-1-ILA <br /> SP1-4 09/23/86 NA NA NA NA 5,600 <br /> SP5-8 09/23/86 NA NA NA NA 5,100 <br /> 1 ,600 <br /> SP9-12 09/23/86 <br /> Composite samples of stockpiled soils from expanded excavation before aeration-I-ILA <br /> RSP(1-4) 10/03/86 <0.05 <0.05 NA <0.05 10 <br /> 10/03/86 <0.05 <0.05 NA <0.05 <10 <br /> . RSP(5-8) 1,000 <br /> RSP(9-12) 10/03/86 NA NA NA NA <br /> Composite samples following aeration(worst case)-HLA <br /> NA NA NA NA 200 <br /> AS-1 11/13/86 NA NA NA NA 25 <br /> SP3-1 11121/86 <br /> MM IMMSM-Mm =RPM Oul NINO 9PI ME EMIR;M.=No <br /> r e <br />