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• <br /> ATTACHMENT A <br /> REMEDIAL SYSTEM PERFORMANCE EVALUATION <br /> Soil vapor extraction (SVE) and air sparging were initiated on January 1, 1995 and May 5, 1995, <br /> respectively A brief description and performance evaluation of the remedial system between <br /> January 26, 2000 and March 15, 2000 is presented below <br /> SVE System <br /> The SVE system is comprised of 14 SVE wells (V-1 through V-13, and E-6) and an Airex Katox <br /> 100 catalytic oxidizer The SVE system is permitted by the San Joaquin County Unified Air <br /> Pollution Control District (SJVUAPCD) Permit to Operate Number N-3601-1-0, which expires <br /> on January 1, 2001 <br /> The SVE system was re-started on March 15, 2000 after being off due to high groundwater <br /> elevations making operation of the SVE system not feasible SVE system influent data is <br /> presented in Table A-1 SVE emission data is presented in Table A-2 <br /> Air Spargzng System <br /> The air sparge system is comprised of 9 air sparge wells(S-1 through S-9) and a MD Pneumatics <br /> Model 3202 7 5-horsepower blower <br /> During the quarter, the air spargmg system was fully operational Air spargmg system <br /> operational data, including well open/closed status, flow rate, and applied pressure data are <br /> presented zn Table A-1 Monitoring well dissolved oxygen data is shown on Table A-2 <br /> Treatment system field data sheets are included as Attachment A-A <br /> Conclusion <br /> SECOR will continue to operate the SVE/AS system until the operation of the SVE system is not <br /> feasible due to low influent concentrations or high groundwater levels <br /> Attachments Table A-1 - Soil Vapor Extraction System Performance <br /> Table A-2 - Soil Vapor Extraction System Emission Data <br /> Table A-3 - Soil Vapor Extraction System Well Data <br /> Table A-4 - Air Spargzng System Well Data <br /> Table A-5 - Monitoring Well Dissolved Oxygen Data <br /> Attachment A-A. Treatment System Feld Data Sheets <br />