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WASTE DISCHARGE REQUIREMENTS ORDER R5-2013-0028 -35- DELICATO VINEYARDS, INC. DELICATO FAMILY VINEYARDS SAN JOAQUIN COUNTY Where: Ca = Flow-weighted average annual FDS concentration in mg/L = the number of the month (e.g., January = 1, February = 2, etc.) C pi = Monthly average process wastewater FDS concentration for calendar month i in mg/L C S; = Monthly average supplemental irrigation water FDS concentration for calendar month i in mg/L (considering each supplemental source separately) V p; = volume of process wastewater applied to LAAs during calendar month i in million gallons V S; = volume of supplemental irrigation water applied to LAAs during calendar month i in million gallons (considering each supplemental source separately) E. Land Application Area Specifications 1. Application of waste constituents to LAAs shall be at reasonable agronomic rates to preclude creation of a nuisance or degradation of groundwater, considering the crop, soil, climate, and irrigation management system. The annual nutritive loading of the LAAs, including the nutritive value of organic and chemical fertilizers and of the wastewater shall not exceed the annual crop demand. 2. Any irrigation runoff(tailwater) shall be confined to the LAAs and shall not enter any surface water drainage course or storm water drainage system. 3. Discharge of process wastewater to any LAA not having a fully functional tailwater/runoff control system is prohibited. 4. Discharge of process wastewater to land overlying septic system leach lines or seepage pits is prohibited. 5. Crops (which may include pasture grasses, native grasses, and/or ornamental landscaping) shall be grown on the LAAs. Crops shall be selected based on nutrient uptake capacity, tolerance to soil moisture conditions, consumptive use of water, and irrigation requirements. Cropping activities shall be sufficient to take up the nitrogen applied, including any fertilizers and manure. Crops shall be harvested and removed from the land at least on an annual basis. 6. Discharge of treated wastewater, including runoff, spray or droplets from the irrigation system, shall not occur outside the boundaries of the approved LAAs. Treated wastewater application using sprinklers, flood, or drip irrigation is acceptable if the discharge complies with all requirements of this Order. 7. Discharge of storm water runoff from the LAAs irrigated with wastewater is prohibited. 8. Application of treated wastewater to the LAAs using sprinkler irrigation is prohibited when wind velocities exceed 30 miles per hour.