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Mr. John Yanak • -2 - • <br /> 12 October 2012 <br /> J.R.Simplot lined process water ponds are regulated by Waste Discharge Requirements {WDRs} Order <br /> No. 97-229. The ponds are designed to handle the discharge with the current concentrations of salts in <br /> the processed wastewater. The Central Valley Water Board staff believes that the quality of water that <br /> is being proposed to be discharged into the pond will be at least similar or better that the processed <br /> wastewater currently discharged to the pond. Therefore, the staff does not have objections on the <br /> proposed work. However, if J.R.Simplot decides to implement a full-scale corrective action of <br /> groundwater in the future that utilizes the pond, revised WDRs would be needed. <br /> During the pilot study, J.R.Simplot also needs to control the pond capacity operationally, and maintain <br /> the required free board as specified in the WDRs. <br /> Prior to implementing the proposed work, please obtain all the necessary permits from local or State <br /> agencies, as needed. Provide at least one-week notice of field activities to allow Central Valley Water <br /> Board staff the opportunity to observe the work. By 28 February 2013, please submit the results of <br /> pilot study in an assessment report. If you have questions or comments, please contact me at 916- <br /> 464-4658, or by e-mail at ssewalia@waterboards.ca.gov <br /> Siddharth Sewalia <br /> Water Resource Control Engineer <br /> Private Sites Cleanup Unit <br /> C: Mr. Tim Van Domelen, J.R. Simplot Company, Lathrop, CA <br /> Mr. Allen Prouty, J.R. Simplot Company, Boise, 1D <br /> Mr. George Luxbacher ,, Glen Springs Holding Inc., Dallas, TX <br /> Ms. Liz Sewell, Arcadis Inc., Roseville, CA <br /> Mr. Garrett Backus, San Joaquin County Environmental Health, Stockton, CA <br /> }CARL E. LONGLEY Scd, P.E., CHAIR PAMELA C. CREEDON P.E., BGEE, EXECUTIVE OFFICER <br /> 11020 SunCenterDrive 11200,Rancho Cordova,CA 95670 www watorboards.ca.gov/cantralvalley <br /> t;.f arcvccn vn PCW <br />