SITE INFORMATION AND CORRESPONDENCE

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CLEANUP AND ABATEMENTO ER NO. ROBERT MONDAVI CORPORATION 6 ROBERT MONDAVI WINERY SAN JOAQUIN COUNTY DRAFT 4. By 1 February 2006, Robert Mondavi Corporation shall submit a Wastewater Characterization and Wastewater Treatment and Disposal System Evaluation Report that will present the results of the approved wastewater characterization, and treatment and disposal system evaluations. The report shall identify potential treatment problems and mitigation measures, compare the results of the wastewater characterization to the results of the treatment evaluation, and identify and comprehensively evaluate conceptual upgrades and improvements to existing treatment and disposal management plans and systems that will protect underlying groundwater from degradation by future discharge of process wastewater. 5. By 1 April 2006, Robert Mondavi Corporation shall submit a Groundwater Characterization Report that comprehensively describes the hydrogeologic conditions and groundwater quality underlying the facility and the relationship between the river and underlying shallow groundwater, assesses the impact of historical process wastewater discharge and other discharge practices on underlying shallow groundwater, and evaluates the potential impacts of future wastewater discharges on underlying shallow groundwater. The report shall clearly identify the wells that were sampled, sampling frequency, and constituents that were analyzed.and shall provide a detailed evaluation of the data collected and reviewed. 6. By 1 July 2006, Robert Mondavi Corporation shall submit a Report of Waste Discharge that includes a Wastewater System Improvement Plan and Final System Design. The Wastewater System Improvement Plan shall examine, compare, and evaluate the wastewater, salinity, and nitrate reduction,reuse, recycling and treatment opportunities, and shall identify best management practices and best practicable treatment and control measures to be implemented to prevent groundwater degradation. The report shall also provide the rationale for the improvement measures chosen. The Final System Design shall present the design for the proposed wastewater system improvements that will protect groundwater beneath the site from degradation. The Report of Waste Discharge shall include a proposed schedule for implementation of the plan and design. 7. Beginning with the Third Quarter 2004, Robert Mondavi Corporation shall submit quarterly progress reports describing the work accomplished to date to comply with this Order. The progress reports are due the first day of the second month following the end of the quarter(i.e.,by 1 February, 1 May, 1 August, and 1 November). The Third Quarter 2004 report is due by 1 November 2004. In addition to the above, the Discharger shall comply with all applicable provisions of the California Water Code that are not specifically referred to in this Order. As required by the California Business and Professions Code Sections 6735, 7835, and 7835.1, all technical reports shall be prepared by, or under the supervision of, a California Registered Engineer or Registered Geologist and signed by the registered professional. If, in the opinion of the Executive Officer, the Discharger fails to comply with the provisions of this Order, the Executive Officer may refer this matter to the Attorney General for judicial enforcement or may issue a complaint for administrative civil liability.