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�. *"00 <br /> 16 December 1999 <br /> AGE-NC Project No. 95-0184 <br /> Page 6 of 6 <br /> hours to determine the relative subsurface permeability for vapor extraction, radius of influence of <br /> the vapor extraction well and the initial hydrocarbon recovery rate. <br /> The extraction well vacuum, induced vacuum at monitoring points, extracted hydrocarbon <br /> concentrations and extraction flow rate will be measured at regular intervals throughout the test.Data <br /> will facilitate in the design of the SVE system and will be used to determine the number of vapor <br /> v� wells, the spacing of the wells and the selection of vapor remediation system (e.g. internal <br /> combustion, thermal oxidation, etc.). <br /> Four vapor samples will be collected from the extraction well during the test. Samples will be <br /> collected at approximately two hour intervals. The samples will be collected in Tedlar bags and <br /> stored in a cool container and transported under chain-of-custody to a DHS-certified laboratory for <br /> analysis. Each vapor sample will be analyzed for TPH-g and BTE&X in accordance with the <br /> appropriate EPA methods. <br /> 4.6. GROUND WATER EXTRACTION PILOT TEST <br /> A submersible pump will be used to extract water from VW3 and induce a decline in static water <br /> level in the extraction well. Pressure transducers will be placed in surrounding wells and the <br /> pumping well and a datalogger will be used to monitor the ground water depths before and during <br /> pumping. A Solinst water level meter will also be used to monitor ground water depths to confirm <br /> 4a and calibrate pressure transducer data. Ground water will be initially be extracted at a rate of <br /> approximately 2 gallons per minute. The extraction rate may vary, depending on the drawdown <br /> induced during the field work. All extracted groundwater will be stored in a temporary, above- <br /> ground(Baker-type),storage tank or in 55-gallon DOT drums. The pump test will last approximately <br /> elf 8 hours. Graphing and computer modeling will be used to analyzed the data and determine aquifer <br /> �y characteristics. <br /> 4.7. REPORT PREPARATION <br /> Procedures and findings of drilling and well installations will be summarized in a Quarterly Report <br /> prepared for the site.Results of feasibility studies will be detailed in a Corrective Action Plan(CAP). <br /> The CAP will provide an analysis of feasibility testing and include recommendations for soil and <br /> ground water remediation at the site. The reports will be in a format acceptable to the PHS/EHD and <br /> will be reviewed and signed by a Registered Geologist. <br /> Advanced Geo Environmental,Inc. <br />