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C,eologual rechh"s Inc Page 9 <br /> Feasibility Study&Investigation Work Plan <br /> Cardoza(Main St) <br /> Project No 662 2 <br /> April 19,2004 <br /> unknown if the aquifer test will reach steady state conditions However, a "Discussion of <br /> Applicable Equations" is included in Appendix B <br /> ' In the event that a cone of depression with a large radius develops during the aquifer test, <br /> the data will also be analyzed by distance-drawdown methods , To use distance-drawdown <br /> accurately, the cone of depression must reach at least three observation wells that are <br /> ' located at three different distances from the extraction well <br /> The data that will be collected after the aquifer test has concluded will be analyzed by the <br /> ' appropriate aquifer equations for the type of aquifer determined to characterize this interval <br /> The test results and calculations will be presented in a report that will subsequently be used <br /> to prepare an interim remedial design plan (if necessary) This plan will propose the <br /> extraction system for the capture zone and the source extraction area <br /> ' 5.3 Mass Balance Calculations <br /> In our February 9, 2004 "Additional Site Characterization - Soil and Groundwater <br /> ' Investigation" report GTI presented estimates of the quantities of TPH-G and MTBE in soil <br /> and groundwater at the site GTI will attempt to quantify the amount of residual <br /> contamination by determining the amount of contaminants removed during the proposed <br /> ' test and subtracting from the original estimates <br /> 6.0 SCHEDULES & REPORTING <br /> Upon work plan approval, we will immediately proceed with budgeting/scheduling this <br /> project The infonnation gathered during this phase of work will be presented in a report, <br /> ' which will include a summary of the extraction data and recommendations Dr Ray <br /> Kablanow, a registered professional geologist, will supervise the project Copies of the <br /> report will be forwarded to the appropriate County and State regulatory agencies (SJC <br /> PHS/EHD and CRWQCB) <br /> Our proposed schedule for performing the work proposed above is <br /> ' Feasibility Study <br /> ❑ Submit dual phase work plan April 2004 <br /> ' ❑ Receive work plan approval from SJC/EHD June 2004 <br /> a Finalize Budget August 2004 <br /> o Install Monitoring and Extraction Wells September 2004 <br /> ra Perform dual phase pilot test October 2004 <br /> ❑ Submit the dual phase test report December 2005 <br /> 1 <br />