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Mr. Ken Gillies Page 2 of 2 <br /> Gillies Trucking May 14, 2013 <br /> 3931 Newton Road, Stockton <br /> the EHD and the CVRWQCB have agreed that your site is a candidate for closure. To <br /> facilitate closing your site, please have your consultant prepare a No Further Action Required <br /> (NFAR) report that includes your evaluation of the LTCP checklist criteria and addresses the <br /> closure criteria of Appendix A of the Tri-Regional Board Staff Recommendations for <br /> Preliminary Investigations and Evaluation of Underground Storage Tank Sites published by <br /> the CVRWQCB. <br /> Your site may not qualify to be closed directly under the LTCP as there are water supply <br /> wells within a thousand feet of your rather large, but diffused dissolved plume - one such well <br /> provides the water supply for your site; however your evaluation of how your site meets the <br /> LTCP criteria and the Appendix A criteria will greatly assist the EHD with the closure <br /> evaluation. In the NFAR, please include an estimate of the residual sorbed and dissolved <br /> contaminant masses, the estimated time required for groundwater to achieve the Water <br /> Quality Objectives (WQOs) for the contaminates of concern. The NFAR should also address <br /> the potential for dissolved contaminates in groundwater impacting the on-site water supply <br /> well again in the future, when the site is no longer monitored, as they have in the past. <br /> Questions or comments may be directed to Nuel Henderson by mail (address on letter head), <br /> or by telephone at (209) 468-3436. <br /> Sincerely, <br /> ✓-l/k��z-- <br /> Harlin Knoll, REHS Nuel C. Henderson, Jr., PG <br /> Senior Registered Environmental Health Specialist Engineering Geologist <br /> cc: James L.L. Barton, PG —CVRWQCB, 11020 Sun Center Dr. #200, Rancho Cordova, <br /> CA 95670 <br /> Stephen Muir, PG, EG, GP, PO Box 152, Woodbridge, CA 95258 <br /> NFAR Directive Letter 0513 <br />