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Gurpal S Sidhu <br />23 January 2009 <br />Waterloo Feed and Fuel <br />Page 3 of 3 <br />3032 E. Waterloo Road, Stockton, CA <br />systems operations; supporting documentation can be submitted to GeoTracker. <br />It may be beneficial to combine the quarterly report and the remediation report. <br />It is essential that your plume characterization effort continue in a timely manner; at this <br />point four CPT borings have been approved and the work plan should be implemented <br />without further delay. As offered by Jim Munch of the CVRWQCB, if the plume is fully <br />delineated and we have a good understanding of what controls its behavior, a reduction <br />in the operational time of the SVE system to save costs may be acceptable if the plume <br />can be properly managed. The CVRWQCB representatives also noted that if your site <br />is referred to them it will be under more stringent oversight requirements. <br />To continue moving your site toward closure by addressing the objectives discussed <br />above, you are directed to: <br />By 01 May 2009 implement the approved work plan to advance four CPT <br />borings; <br />Submit a proposed monitoring well sampling schedule that meets the <br />requirements noted above to the EHD before your next scheduled quarterly <br />monitoring event; <br />By 01 May 2009 submit a work plan to evaluate the potential for soil vapor <br />intrusion into the structure on your site and the immediately adjacent residential <br />structures; and <br />Continue full-time operation of both the SVE and GWE systems; inform the EHD <br />immediately if either or both systems are shut down for any length of time greater <br />than that necessary for routine maintenance. <br />You and your consultant should continually review your site status and recommend any <br />cost-cutting measures that can be implemented without compromising the objectives <br />needed to be achieved to properly manage your plume and bring your site to closure. <br />One way to reduce costs discussed at the meeting was to contact Western Farm <br />Service and discuss coordinating/sharing in site investigative work. You may contact <br />Nuel Henderson at (209) 468-3436 if you have any questions. <br />Sincerely, <br />Nuel C. Henderson, Jr., PG <br />Margare agorio, REHS <br />Engineering Geologist <br />Program Coordinator <br />c: James Barton, PG - CVRWQCB - 11020 Sun Center Dr. #200, Rancho Cordova, <br />CA 95670 <br />William Little, PG — AGE' —837 Shaw Road, Stockton, CA 95215 <br />Meeting Summary and Directive Letter 0109