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JAS j <br /> nn lip% - 1 <br /> c The site Inas petroleum�iyLrocaf3on contarainaryfon resulting from E undergrosr d storzge tank <br /> (115'7)and-fining IkAi urc in -,986. <br /> Site wes eYczvzted in -.987-esul-ir_g in excess o."1650 ca"3ic ya ds of sail being removed a1-1d <br /> acrute,�over a nine ^onto perioi. <br /> Historically groundwater Sms cecli:Mec from z hr glh of 35 feel below ground s:i~f=e ;bgs;_0 80 <br /> feed hgs and has recently risen.o 63 fect bgs. <br /> r'Soil con.larnination s limited to an area near'the formr U9'1 nd former pump is=ends noir <br /> e:'efined b� groundwater rr_onitoring wells MW-13,and iiMW-14. Sail contzanination has a <br /> radius of approaimazely 25 feet. - <br /> o Csro;._ndv?=cr co::"& iination is l;-rftee to tliz same general area as soi_r cotatr t LzOgp with <br /> slight ccntaminatian to'_'-re%7!est of he former puz-, islands in g"oundwz:er mGai^_oring we11 <br /> Sys�ezu_s cti-zently operztirg in ca+alytic mode w fh I=M to catalyst supplied by r gurz? gas. <br /> Extraction rate is 250 cubic feet per minwe.(cfrl)of sail vapor. <br /> 0 F.adius of inflEence is 77 feet <br /> o Current utility costs are extremely high. <br /> Vj <br /> 0 System is diluting soil vaportrations by snore than"O t mes with excess radians of <br /> influence. - -- <br /> Remediation system is not affecting dissolved petroleum hydrocarbons in groundwater. <br /> Elropcsal <br /> a Reduce extraction flowrate to 150 cfm or Icss. <br /> a Monitor influent concCntrations_ <br /> 1 <br /> Tt[ -e1 <br />