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e <br /> TABLE E <br /> GROUNDWATER EXTRACTION EVALUATION <br /> FORMER EXXON RS 7-3942 <br /> 4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA <br /> Estimated Mass and Equivalent Concentration Value Unil Notes <br /> Estimated Petroleum Hydrocarbon Mass in Soil 18,500 Ib Ezlimaw <br /> Volume of Soil 120,000 cubic feet SuMuce,Wlckne.0I 25 feel bgs and 12118411 square MIs asn wwnd null V4 wM <br /> Mise. ,M.boundan <br /> Density of Soil 1,7 kg/L Assen,non <br /> Equivalent Soil Weight 5,78E+06 kg <br /> Equivalent Petroleum Hydrocarbon Soil Concentration 1,456 mg/kg <br /> Soil-Water Partition Coefficient,I(d 5 L/kg RWQCB.2005 <br /> Equivalent Dissolved-Phase Concentration 291,109 ug/L r <br /> Groundwater Extraction Time and Mass Removal Estimate <br /> Extraction Influent Dissolved-Phase Concentration Mass Removal Rate Estimated Time(years)to Remove 18,500 Ib <br /> Rale (ug/L) (Ib/day) of Petroleum Hydrocarbon Mass <br /> 100%phase- 10%Phase- 1%phase- 100%Phase- 10%phase- 1%phase- 100%phase- 10%phase- I%phase- <br /> (gpm) transfer rate transfer rate transfer rate transfer rate transfer rate transfer rate transfer rate transfer rate transfer nate <br /> 10 291,109 29,111 2,911 35 3.5 0.35 1.5 15 145 <br /> 14& years is the expected period of groundwater extraction system operation,which is based on EfIC's experience with the operation of <br /> groundwater extraction system at other petroleum hydrocarbon sites. <br /> N. <br /> Muss mmo,al rise.IWISS,-Q.g:M•Cn.ug1L•3 79 I/gul`IM4 miNdq•Ig/10 ,,IS, IIb1454g <br /> Q. Es0nMi M nm <br /> C. Inllucmdis.1-dgbauronanniien <br /> An MIM <br /> g gran <br /> IS kdoyrn, <br /> ag mMmgmm <br /> ME minisram <br /> L. b¢r <br /> gpn'.gW1eM,cr MMMc <br /> Relcreme <br /> Tnblc 1: Physic.-CkM.l and Ta<way CMMMMS Used M Models <br /> Rcgsnal Wucr Q.AI,Conwl Bowl San Francirco Bay Region.2005. Screening Mr Err%rMI MM Cmecros M Sims wid,ComioindlM Sail and Groendwnmr-Inmrim Final. <br /> R WQCB.Oakla xi Cal,Mw M. Fcbirm,-E,March UPJMM <br /> 6\FMjccmV a'142a'UBL10RWQCBUY42 OWE EVMUMIan Par,InII <br />