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WASTE DISCHARGE REQUIRED TS ORDER NO.R5-2003-0179 -10- VAN RUITEN-TAYLOR RANCH LTD. VAN RUITEN-TAYLOR WINERY LLC SAN JOAQUIN COUNTY b. Ditches not serving as wildlife habitat should be maintained free of emergent, marginal, and floating vegetation. c. Low pressure pipelines, unpressurized pipelines, and ditches that are accessible to mosquitoes shall not be used to store wastewater. 9. A 50-foot buffer zone shall be maintained between any watercourse and the wetted area produced during irrigation used for process wastewater effluent disposal. 10. Discharges to land application area shall be managed to minimize both erosion and runoff from the irrigated area. . 11. The resulting effect of the wastewater discharge on the soil pH shall not exceed the buffering capacity of the soil profile and shall not cause significant mobilization of soil constituents such as iron and manganese. 12. Application of wastewater to the land application areas via flood irrigation shall only occur on furrows graded so as to achieve uniform distribution, minimize ponding and provide for tailwater control. Furrow runs shall be no longer and slopes shall be no greater than what permits reasonably uniform infiltration and maximum practical irrigation efficiency. The minimum furrow slope shall not be less than 0.2 percent. 13. Wastewater application areas shall be allowed to dry for at least 72 hours from the end of wastewater application. 14. There shall be no standing water in the land application areas or landscaped areas 24 hours after wastewater is applied, except during periods of heavy rains sustained over two or more consecutive days. E. Solids/Sludge Disposal Requirements: 1. Collected screenings, sludge, and other solids removed from winery wastewater shall be disposed of in a manner that is consistent with Title 27, Division 2, Subdivision 1 of the CCR and approved by the Executive Officer. 2. Winery sludge and other solids shall be removed from the process equipment, sumps, etc. as needed to ensure optimal operation and adequate hydraulic capacity. Winery solids drying operations, if any, shall be designed and operated to prevent leachate generation. 3. Storage and disposal of domestic wastewater sludge (septage) shall comply with existing Federal, State, and local laws and regulations, including permitting requirements and technical standards. 4. Sludge and other solids shall be removed from septic tanks as needed to ensure optimal operation and adequate hydraulic capacity. A duly authorized carrier shall haul sludge, septage, and domestic wastewater.