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INFORMATION SHEET ORDER NO. SPENKER RANCH, INC. JESSIE'S GROVE WINERY SAN JOAQUIN COUNTY Spenker Ranch Inc. operates Jessie's Grove Winery at 1973 W. Turner Road, Lodi. The winery will process approximately 390 tons of grapes annually to produce approximately 66,300 gallons of bulk wine. In addition, approximately 5,000 cases of wine will be bottled on-site. Wastewater is generated in tank cleaning, grape crushing, and equipment/floor cleaning. A mobile contract wine bottling service is used to bottle the wine; therefore, bottling activities will not generate a high strength waste stream. The winery is located outdoors, stormwater that falls on roofs, paved areas, and the winery is collected and discharged to the wastewater system. Domestic wastewater is discharged to a septic tank and leachfield system. The domestic system is regulated by the San Joaquin County Environmental Health Department. The Discharger has proposed treating wastewater/stormwater in a septic tank/wetland treatment system. The system has not been constructed; this Order requires construction and use of the system by 2 September 2004 (prior to crush activities). Process wastewater treatment will consist of collection of wastewater in floor drains with screens, additional screening with a hyperbolic screen, settling and anaerobic treatment in a 5,000 gallon septic tank, biological and filtration treatment in a subsurface vegetated wetland, and application to a 0.6 acre cropped land application area. If conditions in the land application area do not allow application of wastewater, effluent from the wetlands will discharge by gravity into an existing stormwater storage pond. The monthly average process wastewater flow rate is anticipated to be 1,000 gallons per day(gpd) except during the crush(September through November) when wastewater flow rate is anticipated to be 2,000 gpd. The wastewater flow rate described above does not include rainfall that will combine with the industrial wastewater. The annual volume of wastewater and wastewater/stormwater mixtures discharged shall not exceed 205,000 gallons. The amount of wastewater that will be generated does not meet the crop demand for irrigation; therefore supplemental irrigation water will also be applied to the land area. Because the amount of land application area identified in the RWD is small, this Order requires the Discharger to evaluate the need for additional land application areas. Biological treatment in the septic tank and wetland is likely to reduce total nitrogen concentrations, biochemical oxygen demand substances, and volatile dissolved solids resulting in a lower concentration of TDS discharged to the land application area. However, the Discharger has not demonstrated that application of this wastewater on 0.6 acres of land will not result in groundwater degradation. It is anticipated that the cropping activities in the land application area will utilize all the nitrogen applied in the wastewater. Dissolved solids in the wastewater are a concern based on the size of the land application area and cropping activities. This Order requires preparation of a Disposal Capacity Evaluation, Groundwater Monitoring Workplan, Wastewater Treatment System Construction Report and Land Application Area Improvement Report, Operation and Maintenance Plan, Groundwater Well Installation Report, Salinity Reduction Study, and a Background Groundwater Quality Study Report. The WDRs allow the Discharger to increase the land application area and add new land application areas upon the Executive Officer's approval of a technical report approving improvements that must be constructed