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WASTE DISCHARGE REQUIR ;NTS ORDER NO. VAN RUITEN-TAYLOR RANCH LTD. -5- VAN RUITEN-TAYLOR WINERY LLC SAN JOAQUIN COUNTY 27. The site is located outside the 100-year flood zone. 28. An on-site domestic well supplies water for the facility. The well is 155 feet deep and is screened from 118 to 155 feet. Gravel pack exists from 58 to 155 feet. Depth to water in the well is approximately 40 feet. The well was sampled on 29 January 2003 and 10 March 2003; the analytical results are presented below: Anal3' Sample Date Units Concentration Nitrate as Nitrate 1/29/03 mg/L 12.4 Total Kjeldahl Nitrogen 3/10/03 mg/L 1.4 Total Dissolved Solids 3/10/03 mg/L 270 pH 3/10/03 Std. Units 7.2 29. Domestic wastewater is collected separately from the process winery wastewater in an on-site sewage disposal system. This system is regulated by San Joaquin County Environmental Health Department. BASIN PLAN, BENEFICIAL USES, AND REGULATORY CONSIDERATIONS 30. The Water Quality Control Plan for the Sacramento River and San Joaquin River Basins, Fourth Edition, (hereafter Basin Plan) designates beneficial uses, establishes water quality objectives, contains implementation plans and policies for protecting waters of the basin, and incorporates by reference plans and policies adopted by the State Water Resources Control Board. Pursuant to §13263(a) of the California Water Code (CWC), waste discharge requirements must implement the Basin Plan. 31. Surface water drainage in the area is to the South Main Canal, tributary to the Mokelumne River. 32. The beneficial uses of the Mokelumne River from Camanche Reservoir to the Delta are agricultural supply; water contact recreation; noncontact water recreation; warm freshwater habitat, cold freshwater habitat; spawning, reproduction, and/or early development; and wildlife habitat. 33. The beneficial uses of underlying groundwater are municipal and domestic water supply, agricultural supply, industrial service supply, and industrial process supply. 34. State Water Resources Control Board (State Board)Resolution No. 68-16 requires that the Board, in regulating the discharge of waste, must maintain high quality waters of the state until it is demonstrated that any change in quality will be consistent with maximum benefit to the people of the State, will not unreasonably affect beneficial uses, and will not result in water quality less than that described in the Regional Board's policies (e.g., quality that exceeds water quality objectives). 35. Anti-degradation has been considered pursuant to State Board Resolution No. 68-16 and it has been determined that this discharge of waste should not degrade surface water or groundwater quality. The waste will be treated to remove BOD and total suspended solids, and will be applied to land at agronomic rates. This Order establishes effluent limitations that are protective of the beneficial uses of the underlying groundwater, requires a salinity source reduction study, and requires the sampling of groundwater monitoring wells to assure that the discharge of waste is not impacting the underlying groundwater. Based on the result of the scheduled tasks, this Order may V:'Sau_Joaquin Noul5\SmMObrimT�Sm Joaquin\Van Rui=-Taylor Wiou}1WDR.dm