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WASTE DISCHARGE REQUIREMENTS ORDER NO. -10- <br /> RODNEY AND GAYLA SCHATZ <br /> MOKELUMNE RIM VINEYARDS <br /> SAN JOAQUIN COUNTY <br /> 2. Wastewater shall not be applied to the land application area 24 hours before a predicted <br /> precipitation event, during precipitation, or within 24 hours after any precipitation event, nor <br /> shall it be performed when ground is saturated. <br /> 3. Crops shall be grown on the land application areas. Crops shall be selected based on nutrient <br /> uptake capacity, tolerance to high soil moisture conditions, and consumptive use of water and <br /> irrigation requirements. Cropping activities shall be sufficient to take up all the nitrogen <br /> applied. <br /> 4. Discharge of process wastewater, including runoff, spray or droplets from the irrigation <br /> system, shall not occur outside the boundaries of the land application area. The RWD <br /> described wastewater application using flood irrigation, however, sprinkler application is <br /> acceptable if the discharge complies with all requirements of this Order. <br /> 5. Hydraulic loading of process wastewater and irrigation water shall be at reasonable <br /> agronomic rates designed to maximize uptake and breakdown of waste constituents in the <br /> root zone and minimize the percolation of waste constituents below the root zone (i.e., deep <br /> percolation). <br /> 6. Wastewater conveyance lines shall be clearly marked as such. Process wastewater <br /> controllers, valves, etc. shall be affixed with reclaimed water warning signs, and these and <br /> quick couplers and sprinkler heads shall be of a type, or secured in such a manner, that <br /> permits operation by authorized personnel only. <br /> 7. Irrigation systems shall be labeled as containing reclaimed wastewater. If wastewater and <br /> irrigation water utilize the same pipeline, then backflow prevention devices shall be installed <br /> to protect the potable water supply. <br /> 8. Application of wastewater to the land application area using sprinkler irrigation is prohibited <br /> when wind velocities exceed 30 mph. <br /> 9. Public contact with wastewater shall be precluded through such means as fences, signs, and <br /> irrigation management practices. Signs with proper wording of sufficient size shall be placed <br /> at areas of access and around the perimeter of the land application areas to alert the public of <br /> the use of wastewater. <br /> 10. The land application areas shall be managed to prevent breeding of mosquitoes. In particular: <br /> a. All irrigation water must infiltrate completely within 24 hours; <br /> b. Ditches not serving as wildlife habitat should be maintained free of emergent, marginal, <br /> and floating vegetation, and; <br /> c. Low pressure pipelines, unpressurized pipelines, and ditches accessible to mosquitoes <br /> shall not be used to store wastewater. <br /> 11. A 50-foot buffer zone shall be maintained between any watercourse and the wetted area <br /> produced during irrigation used for process wastewater application. <br /> V:,San_Joaquin Non 15\SIufRObnmrSan loaquin\Mokcl—Rim Vin—ds\WDM.dm <br />