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®.-- E.Muwo 0.BROWN JR. <br /> �� WYERNOR <br /> OW6IPOWNOW MAi aw ROORIOUEI <br /> ater Boards WECI E ME POR <br /> ENVIRONMENTAL PROTECTION <br /> Central Valley Regional Water Quality Control Board <br /> 17 September 2015 <br /> Andrew Keller <br /> TLE Properties, Inc. <br /> 379 Costa Mesa Street <br /> Costa Mesa, CA 92627 <br /> CONDITIONAL APPROVAL OF MONITORING WELL -7A INSTALLATION WORKPLAN, <br /> COVE CONTRACTORS LANDFILL, SAN JOAQUIN COUNTY <br /> The Water Board regulates Cove Contractors Inc. and EI Doradao Property Management <br /> (Discharger) under Waste Discharge Requirements (WDRs)Order R5-2007-0084 for <br /> groundwater monitoring. In this regard, monitoring well MW-7 is part of the WDRs-required <br /> monitoring network'. <br /> On 12 June 2014, Water Board staff conditionally approved the abandonment of groundwater <br /> monitoring well MW-7, provided that the Discharger install a replacement well. Subsequently, <br /> on 1 September 2015, the Discharger submitted a workplan to install the required replacement <br /> well, which the Discharger has identified as -7 . <br /> Based on review of the Discharger's Monitoring Well Installation Workplan, Water Board staff <br /> concurs with the workplan provided that the Discharger complies with the following <br /> requirements: <br /> Conditions of Concurrence <br /> 1. Monitoring well MW-7A shall be installed such that the screen interval will monitor the <br /> same zone as that of the original well (MW-7). <br /> 2. Within 45 days of installation of groundwater monitoring well MW-7A, a monitoring <br /> well installation report shall be submitted with the information outlined in Attachment A to <br /> this letter. <br /> 3. In compliance with Evaluation, Detection, and Corrective Action Monitoring Specification <br /> D.1 of the WDRs, Monitoring well -7A shall be incorporated into Monitoring and <br /> Reporting Program R5-2007-0084. Specifically, <br /> "if new or additional wells, devices, or locations are installed or <br /> established, then those new wells, devices, and locations will become <br /> See Evaluation, Detection,and Corrective Action Specification DA.b of WDRs R5-2007-0084. <br /> KARL E. LON®LBV SCD, P.E.,CHAIR 1 PAMELA C. CREEDON P.E.,BCEE,EXECUTIVE OFFICER <br /> 91020 Sun Center Drive#200,Rancho Cordova,CA 95670 1 www.waterboards.ca.gov/centralvalley <br /> p RECYCLED PARER <br />