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S E c o R <br /> RECENT SUBMITTALSICORRESPONDENCE <br /> Well MW-13 Reinstallation Report dated September 3, 2004 <br /> Work Plan for Additional Site Assessment Dated September 13, 2004 <br /> SJCEHD approval letter dated September 28, 2004 <br /> THIS QUARTER ACTIVITIES(Fourth Quarter 2004) <br /> 1. Performed quarterly groundwater monitoring and sampling (TRC). <br /> 2. Prepared and submitted a quarterly summary report. <br /> 3. Performed remedial system operation and maintenance. <br /> NEXT QUARTER ACTIVITIES (First Quarter 2005) <br /> 1. Prepare and submit a quarterly summary report. <br /> 2. Perform quarterly groundwater monitoring and sampling. <br /> 3. Perform remedial system operation and maintenance. <br /> 4. Complete the installation of additional wells MW-22, MW-23, and MW-24. <br /> 5. Meet with off-site property owner for access agreement. <br /> f9 <br /> CONCLUSIONS AND RECOMMENDATIONS <br /> Based on the fourth quarter groundwater monitoring and sampling and data collected during <br /> ozone sparge system operation and maintenance, TPHg and MtBE concentrations in <br /> groundwater continue to decline. SECOR recommends that the ozone sparge system continue to <br /> operate. SECOR will implement additional assessment south of well MW-19 upon receipt of <br /> access to private property. <br />