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CLEANUP AND ABATEMENT OOR NO.R5-2004-0705 • 4 DELICATO VINEYARDS WASTEWATER DISPOSAL SITE SAN JOAQUIN COUNTY are available at http://www.swreb.ca.gov/water_laws/cawtrcde/wgpetition_instr.html and will also be provided upon request. IT IS HEREBY ORDERED that, pursuant to Sections 13304 and 13267 of the California Water Code, Delicato Vineyards shall cleanup and abate the condition of pollution or nuisance caused by discharge from the Delicato Vineyards facility, in accordance with the scope and schedule set forth below. Compliance with this requirement shall include, but not be limited to, the following measures: 1. Delicato Vineyards shall comply with all aspects of WDRs Order No. 96-077 and Revised MRP Order No 96-077, except for the Groundwater Limitation. The Discharger shall make all practicable efforts to comply with the Groundwater Limitation during the study period described in this Order, and at the end of the study period, shall submit a Report of Waste Discharge proposing such improvements that it will comply with the Limitation in the future. 2. By 1 August 2004,Delicato Vineyards shall submit a Wastewater Characterization and Treatment Evaluation Workplan that provides a detailed proposal of the work which will be conducted to assess current conditions, estimate future conditions, and evaluate, identify, and plan the necessary wastewater system improvements. At a minimum, the Workplan shall include: a. A Wastewater Characterization Workplan that describes a sampling program for specific waste streams (winery process water, equipment washwater, ion exchange, cooling water, water softening, and other discrete processes) in order to identify potential wastewater and salinity reduction, reuse, recycling, and treatment opportunities. The workplan shall detail the location at which samples will be collected, sampling frequency, and constituents to be analyzed. b. A Wastewater Treatment Evaluation Workplan that describes the steps to be taken in order to evaluate wastewater application practices, application area cropping practices, and the vineyard soils and their ability to treat the wastewater to identify potential treatment problems, mitigation measures, and treatment improvement opportunities. 3. By 1 October 2005, Delicato Vineyards shall submit a Wastewater Characterization and Wastewater Treatment Evaluation Report that will present the results of both the wastewater characterization and the treatment system evaluation based on data from the wastewater generating processes for an entire year period. The wastewater characterization portion of this study should describe site-specific wastewater characteristics and assess seasonal variations of the processes that contribute to the wastewater stream, including the winery process, equipment washwater, ion exchange,water softening, and cooling water discharges. The wastewater treatment portion of the study should evaluate the wastewater application practices, application area cropping practices, and hydraulic characteristics and other qualities of the vineyard soils in order to identify potential treatment problems and mitigation measures. This portion of the report should also compare the results of the wastewater characterization to the results of the treatment evaluation, and identify and describe potential wastewater and salinity reduction, reuse, recycling, and treatment opportunities to prevent future degradation of groundwater below the site.