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Brad Peterson - 2 - 29 March 2005 The primary method of wastewater disposal will be the spray irrigation of 18-acres of vineyard. The Discharger has estimated the maximum volume and strength of wastewater that will be produced and has calculated the expected maximum hydraulic and agronomic loading rates for the proposed disposal area. Based on these calculations, the proposed 18-acre land application area should have adequate hydraulic and nutrient uptake capacity to receive the total wastewater discharge from this facility and remain protective of groundwater and surface water quality. The Discharger has identified Best Management Practices that will be implemented to minimize wastewater strength and potential odor problems, and to prevent hydraulic or nutrient overloading. Those practices include: source control, reuse, substitution of chemicals, and outsource laboratory work when possible. The estimated volume of wastewater used to calculate the maximum loading rates was 45,000 gallons per year. Wastewater data will be compiled and included in an annual report. Solid waste produced by the facility will consist of grape seeds, stems, skins, and lees. It is estimated that no more than 6.5 tons of solid waste will be generated annually. Solid waste will be spread on the vineyard. The vineyard practices a no tillage approach to farming; however, the solid waste will be tilled into the soil if needed to prevent odors. As a contingency solid waste management option, the Discharger can transport the waste to a landfill for disposal. Conditional Waiver Based on the information submitted in the RWD, the discharge as described above satisfies the general and specific conditions of Resolution No. R5-2003-0106 for the current amount of wastewater produced. Therefore, this letter serves as formal notice that Resolution No. R5-2003-0106 is applicable and waste discharge requirements for this facility are waived. Enclosed is a copy of Resolution No. R5-2003-0106 and the associated monitoring and reporting program. As described therein, an annual report must be submitted by 1 February of each year. If the discharge violates the terms or conditions of the waiver, the Regional Board may take enforcement action, including assessment of administrative civil liability. If the method of winery wastewater and solids disposal change from those described in the RWD, you must submit a new RWD. Please note that the waiver will expire on 11 July 2008, at which time you must submit a new RWD with filing fee to renew the waiver, or cease the discharge. If your total annual flow exceeds 100,000 gallons per year,the waiver is no longer applicable to your facility and you must submit a new RWD for individual Waste Discharge Requirements. If you have any questions, please contact Tim O'Brien at(916) 464-4616. xP(�ttt;> 1 , THOMAS R. PINKOS Executive Officer enc: General Order No. R5-2003-0106 cc: w/o enc Mike Huggins, San Joaquin County Environmental Health Department, Stockton W:\SWl\ObrienTSan Joaquin\1075 CellarsTm—d Mnr05 NOA.d,c