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WASTE DISCHARGE REQUIREMLOS ORDER NO. 5-01-251 . 14 CITY OF LATHROP AND CROSSROADS CREA LLC WASTEWATER TREATMENT PLANT NO. 1 (CROSSROADS), SAN JOAQUIN COUNTY testing to qualify for reuse pursuant to federal and state regulations as a soil amendment for agriculture, silviculture,horticulture, and land reclamation. 1. Sludge and solid waste shall be removed from screens, sumps,ponds, and clarifiers as needed to ensure optimal plant operation. 2. Treatment and storage of sludge shall be confined to the treatment facility property, and shall be conducted in a manner that precludes infiltration of waste constituents into soils in a mass or at concentrations that will violate the Groundwater Limitations of this Order. 3. Any storage of residual sludge, solid waste, and biosolids at the facility shall be temporary, and the waste shall be controlled and contained in a manner that minimizes leachate formation and precludes infiltration of waste constituents into soils in a mass or at concentrations that will violate the Groundwater Limitations of this Order. 4. Residual sludge,biosolids, and solid waste shall be disposed of in a manner approved by the Executive Officer and consistent with Title 27. Removal for further treatment, disposal, or reuse at disposal sites operated in accordance with valid waste discharge requirements i§sued by a regional water quality control board will satisfy this specification. 5. Use and disposal of biosolids should comply with the self-implementing federal regulations of 40 CFR 503,which are subject to enforcement by the U.S. EPA, not the Board. If during the life of this Order the State accepts primacy for implementation of 40 CFR 503, the Board may also initiate enforcement where appropriate. D. Land Application Area Specifications 1. Recycled wastewater used for irrigation shall meet the criteria contained in Section 60301 et seq. of Title 22. 2. Public contact with recycled wastewater shall be controlled through use of fences and cautionary signs, and/or other appropriate means. Perimeter warning signs indicating that recycled water is in use shall be posted at least every 500 feet along the property boundary and at each access road entrance to the properties. The contents of these signs shall be as described in Section 60310 of Title 22. Each sign shall be in English and Spanish languages. 3. Recycled water controllers, valves, and similar appurtenances shall be affixed with recycled water warning signs, and shall be equipped with removable handles or locking mechanisms to prevent public access or tampering. Quick couplers and sprinkler heads,if used, shall be of a type, or secured in a manner,that permits operation only by authorized personnel. Hose bibbs that the public could use shall be eliminated. 4. Any connection between the recycled water conveyance system and any potable water conveyance system, groundwater supply well, or surface water supply source for the purpose of supplementing recycled water shall be equipped with an appropriate backflow prevention device.