SITE INFORMATION AND CORRESPONDENCE CASE 2

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WASTE DISCHARGE REQUIREMENTS ORDER NO.R5-2003-0141 - 14- CALIFORNIA NATURAL PRODUCTS WASTEWATER TREATMENT FACILITY SAN JOAQUIN COUNTY 10. Discharges to the land application area shall be managed to minimize both erosion and runoff from the land application area. 11. 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. 12. Wastewater application areas shall be allowed to dry for at least 72 hours from the end of wastewater application. 13. The land application facility shall have sufficient capacity to accommodate allowable wastewater flow, design seasonal precipitation, and ancillary inflow and infiltration. Design seasonal precipitation shall be based on total annual precipitation using a return period of 100 years, distributed monthly in accordance with the historical rainfall patterns. 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. 15. Wastewater discharge shall not occur within a 50-foot wide buffer zone along any property lines adjacent to properties developed with residences. 16. The perimeter of the land application areas shall be bermed or graded to prevent ponding along public roads or other public areas. Landscaped areas that are not bermed shall be closely monitored to control runoff. 17. The resulting effect of the wastewater discharge on the soil pH shall not exceed the buffering capacity of the soil profile. E. Solids Disposal: 1. Collected screenings, sludge, and other solids removed from 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. Sludge and other solids shall be removed from wastewater treatment equipment, sumps, etc. as needed to ensure optimal plant operation and adequate hydraulic capacity. Drying operations shall take place such that leachate does not impact the quality of groundwater or surface water. 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.