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Musco Family Olive Compar* - 3 - 21 March 2007 <br /> Staff requests Musco submit a report with the rationale for well locations designated as C(R3), <br /> D(R3), and E(R3) and identify the geologic horizon(s) the wells are intended to monitor. The <br /> report should also provide the results of borings B-1 through B-3 and an interpretation of those <br /> results. The report is due by 10 April 2007. <br /> According to the work plan schedule, Musco proposes to proceed with well installation in May <br /> 2007, if normal or below normal rainfall has occurred during the 2006/2007 wet season. <br /> Based on current precipitation data from the Department of Water Resources, the 2006/2007 <br /> wet season for the Tracy area appears to be below normal precipitation and therefore staff <br /> anticipate that the nine Phase I wells will be installed during May 2007. Staff understands that <br /> permission to access neighboring properties is required for well installation and that Musco is <br /> progressing with the access agreements. Once drilling of the Phase I borings has been <br /> completed, a well installation report shall be submitted within 60 days of completion. The well <br /> installation report must be prepared in accordance with the attached report guidelines. <br /> The proposed Phase I drilling is critical to further characterize groundwater conditions at the <br /> site. However, additional off-site investigation has been recommended to define and <br /> characterize off-site impacts. Following evaluation of groundwater sampling data collected <br /> through November 2007, and submission of the Water Quality Protection Standard by <br /> 1 December 2007, the Discharger shall submit the Phase II work plan by 31 January 2008. <br /> If you have any questions please call me at (916) 464-4737. <br /> Todd A. Del Frate <br /> Engineering Geologist <br /> Waste Discharge to Land Unit <br /> Lower San Joaquin River Watershed <br /> Enclosure(s) Requirements for Monitoring Well Installation Workplans and Monitoring <br /> Well Installation Reports <br /> cc: Robert McClellon, San Joaquin County Environmental Health Department, <br />