Laserfiche WebLink
. REMEDIATION SYSTEM SUMMARY <br />' In Situ Groundwater Extraction and Treatment System (UVB) <br />' System description: <br /> A vacuum vaporizer well system, known as UVB (Unterdruck Verdampfer Brunnen), is capable of <br />' extracting groundwater from one well,UVB The UVB treatment system consists of an in situ,400- <br /> rmilimeter-diameter reduced pressure air stripper and a 5-horsepower blower and includes a <br /> weatherproof cover and moisture knockout drum The moisture knockout drum has a built-in <br />' stripping unit to treat any accumulated water prior to removal Vapors stripped from groundwater in <br /> the UVB air stripper are extracted by the UVB vacuum blower The pressure outlet of the LTVB <br /> blower is connected to a Thermtech VAC 25 thermal/catalytic oxidizer, to destroy volatile organic <br /> compound vapors in a heated chamber prior to release into the ambient air <br /> System startup date- 6 February 1997 <br />' Active extraction wells: None <br /> Inactive extraction wells/reason: UVB (The system was shut down on 22 September 2000 as <br /> proposed during the 12 September 2000 meeting between San <br />' Joaquin County Public Health Services and ExxonMobil <br /> Refining and Supply Company ) <br />'M Modifications made during reporting period/reasons for modifications: <br />' No modifications <br /> Status of system operation during reporting period/reasons for downtime. <br />' The UVB system did not operate <br />' System performance data totals (totals since system startup, as of 10 September 2002) <br /> Groundwater extracted. Not applicable <br />' Pounds of TPH removed: 1,998 7 (calculated as TPH-g) <br /> Pounds of benzene removed: 1845 <br /> Pounds of MTBE removed Not calculated <br /> WB system proposed work. <br />' The UVB system will remain shut down <br />' G%Pmje�ts173942�PuBlACIO_&_M1Quarterly Progress Report 3942 Q0902—systemdoc 3 <br />