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WASTE DISCHARGE REQUIREMENTS ORDER R5-2012-0103 - 2 - CONSTELLATION BRANDS U.S. OPERATIONS, INC. dba WOODBRIDGE WINERY WOODBRIDGE WINERY SAN JOAQUIN COUNTY 6. The facility is located adjacent to and north of the Mokelumne River. The property includes approximately 2,000 feet of river frontage and extends approximately 3,000 feet north from the river to E. Woodbridge Road. A site map is presented on Attachment B, which is attached hereto and is made part of this Order by reference. 7. Historically, a distillery was operated on site by a former owner. Stillage 1 was discharged to an unlined shallow pond that was located in the area south of the winery processing facility (see Attachment B). Distillation was discontinued several years prior to 1977. The pond was abandoned and the area covered with buildings and/or asphalt pavement in the 1970’s. The RWD states that the Discharger never operated the still. There is no record of any remedial activities to reduce the concentration of waste constituents that may exist in soil or groundwater at the site of the stillage pond when it was closed. The area has been covered with a warehouse, thereby reducing the amount of storm water that can percolate through the former stillage pond location. 8. Wastewater at the facility generally consists of equipment wash water, cellar wash water, spent regenerant from water softening ion exchange units, cooling tower blowdown, bottling wash water, and storm water that falls on uncovered processing areas. Wastewater is treated and stored in ponds and applied to cropped land application areas (LAAs). 9. Various residual solid wastes are generated at the facility, including spent diatomaceous earth (DE) from the filtration of wine, pomace (the crushed pulp of grapes), grape stems and leaves, and screenings recovered from wastewater screens. Residual solids are hauled off-site for reuse or disposal at a permitted landfill. Reuse includes off-site composting, off-site use as livestock feed, and further processing at appropriately permitted facilities. 10. On 22 June 2007, the Central Valley Water Board adopted Cease and Desist Order (CDO) R5-2007-0082 to address groundwater degradation at the site. The CDO required further investigation of groundwater quality, LAA efficiency, wastewater treatment, and based on the technical studies, submittal of a RWD. FACILITY CHANGES 11. The facility has expanded since the 1987 WDRs were adopted. The CDO required submittal of technical reports to investigate and improve the wastewater system. As described in a later section, much of that work has been completed. Currently, typical production at the facility involves crushing approximately 100,000 to 150,000 tons of grapes per year. Production totals for 2003 through 2009 are summarized below: 1 Winery stillage is wastewater generated by removing alcohol from fermented grapes. It tends to be high in BOD and total nitrogen concentrations. Because water is generally heated in boilers to allow the distillation, related waste streams such as boiler feed water treatment and boiler blowdown are also generated. The related waste streams are typically high in Fixed Dissolved Solids (FDS) concentrations.