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QC06gicaI ncwcs lnc. Page 13 <br /> Interim Remedial Action Plan <br /> Project No.723.2 <br /> March 7,2005 <br /> unknown if the aquiferY test will reach stead 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 due to the groundwater <br /> extraction from EW-2, the data will also be analyzed by distance-drawdown methods. To use <br /> distance-drawdown accurately, the cone of depression must reach at least three observation <br /> wells that are located at three different distances from the extraction well. <br /> The data that is generated will be used to complete the site conceptual model and for <br /> preparation of the final Corrective Action Plan once the down gradient plume is defined. <br /> j <br /> 5.0 SCHEDULE AND REPORTING <br /> Upon system installation and startup an interim progress report will be submitted to <br /> SJC/EHD. This report will cover the new well installation dual phase system installation <br /> and details pertaining to the initial radius of influence testing. Recommendations for system <br /> improvements will be made if necessary. <br /> 5.1 Final Corrective Action Plan <br /> A work plan for further plume definition will be submitted to the SJC/EHD for approval. <br /> When the site is fully characterized then the performance of the above extractions schemes <br /> will be evaluated in conjunction with future site characterization. GTI will prepare a final <br /> Corrective Action Plan (CAP) in accordance with CCR, Title 23, Divsion3, Chapter 16, <br /> Section 2725 (b). The CAP will include three corrective action alternatives and a <br /> recommendation for implementing the most technologically and cost effective alternative. i <br /> 5.2 Proposed Schedule of Work <br /> Thero osed schedule for the interim remedial work is as follows: <br /> p p <br /> Task Description Completion Data <br /> • Submit work plan for dual phase extraction March, 2005 <br /> f • Receive approval for the work plan April,2005 <br /> �•+ • Prepare budget/USTCFP three bid process May, 2005 <br /> • Submit SJVUAPCD permit applications June, 2005 <br /> • Award Bids/Order Remedial Equipment June, 2005 <br /> • Installation & startup of remedial system August, 2005 <br /> • Perform remedial effectiveness testing September, 2005 <br /> • Prepare interim progress report October, 2005 <br /> • Prepare a final corrective action plan - January, 2006 <br /> L <br />