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0 <br /> WASTE DISCHARGE REQUIREMENTS ORDER NO. -5- <br /> RODNEY AND GAYLA SCHATZ <br /> MOKELUMNE RIM VINEYARDS <br /> SAN JOAQUIN COUNTY <br /> 23. Domestic wastewater is disposed of separately from the process winery wastewater in an on-site <br /> sewage disposal system. This system is regulated by San Joaquin County Environmental Health <br /> Department. <br /> BASIN PLAN, BENEFICIAL USES, AND REGULATORY CONSIDERATIONS <br /> 24. The Water Quality Control Plan for the Sacramento River and San Joaquin River Basins, Fourth <br /> Edition, (hereafter Basin Plan) designates beneficial uses, establishes water quality objectives, <br /> contains implementation plans and policies for protecting waters of the basin, and incorporates by <br /> reference plans and policies adopted by the State Water Resources Control Board. Pursuant to <br /> §13263(a) of the California Water Code (CWC), waste discharge requirements must implement the <br /> Basin Plan. <br /> 25. Surface water drainage in the area is to the Mokelumne River, downstream of Camanche <br /> Reservoir. <br /> 26. The beneficial uses of the Mokelumne River from Camanche Reservoir to the Delta are <br /> agricultural supply; water contact recreation; noncontact water recreation; warm freshwater habitat, <br /> cold freshwater habitat; migration of aquatic organisms; spawning, reproduction, and/or early <br /> development; and wildlife habitat. <br /> 27. The beneficial uses of underlying groundwater are municipal and domestic water supply, <br /> agricultural supply, industrial service supply, and industrial process supply. <br /> 28. State Water Resources Control Board (State Board) Resolution No. 68-16 (the Antidegradation <br /> Policy) requires that the Board, in regulating the discharge of waste, must maintain the high quality <br /> of waters of the state until it is demonstrated that any change in quality will be consistent with <br /> maximum benefit to the people of the State, will not unreasonably affect beneficial uses, and will <br /> not result in water quality less than that described in the Regional Board's policies (e.g., quality <br /> that exceeds water quality objectives). Resolution No. 68-16 also requires that waste discharged to <br /> high quality waters be required to meet waste discharge requirements, which will result in the best <br /> practicable treatment or control of the discharge. <br /> 29. The Discharger has not submitted any information showing that it should be allowed to degrade the <br /> groundwater as described in State Board Resolution No. 68-16, and therefore no degradation is <br /> allowed. This discharge of waste should not degrade surface water or groundwater quality. The <br /> waste will be applied to land at agronomic rates. This Order establishes effluent limitations that are <br /> protective of the beneficial uses of the underlying groundwater, requires a salinity source reduction <br /> study, and requires the sampling of groundwater monitoring wells to assure that the discharge of <br /> waste is not impacting the underlying groundwater. Based on the result of the scheduled tasks, this <br /> Order may be reopened to reconsider effluent limitations and other requirements to comply with <br /> Resolution 68-16. <br /> 30. Application of the winery wastewater to the land application area should not cause an increase in <br /> the salt (measured as specific conductivity, TDS, or chloride concentrations) in the underlying <br /> groundwater. The "total dissolved solids" component of the wastewater is composed of both <br /> volatile dissolved solids (VDS) and inorganic dissolved solids (IDS). The proportion of VDS to <br /> V`S­Jo.muin NonliSiaiTOb..rn Sri Jonquin\Mokelunme Rim Vince ds\WDRr1 dx <br />