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WASTE DISCHARGE REQUIREMENTS -12- CITY OF STOCKTON REGIONAL WATER QUALITY CONTROL PLANT SAN JOAQUIN COUNTY D. Sludge Disposal: 1. Collected screenings, sludges, and other solids removed from liquid wastes shall be disposed of in a manner that is consistent with Chapter 15, Division 3, Title 23, of the California Code of Regulations and approved by the Executive Officer. 2. Any proposed change in sludge use or disposal practice from a previously approved practice shall be reported to the Executive Officer and EPA Regional Administrator at least 90 days in advance of the change. 3. Use and disposal of sewage sludge shall comply with existing Federal and State laws and regulations, including permitting requirements and technical standards included in 40 CFR 503. If the State Water Resources Control Board and the Regional Water Quality Control Boards are given the authority to implement regulations contained in 40 CFR 503, this Order may be reopened to incorporate appropriate time schedules and technical standards. The Discharger must comply with the standards and time schedules contained in 40 CFR 503 whether or not they have been incorporated into this Order. 4. The Discharger is encouraged to comply with the State Guidance Manual issued by the Department of Health Services, titled Manual of Good Practice for Landspreading of Sewage Sludge. (for sludge reuse) 5. In accordance with Monitoring and Reporting Program No. 94-324, the Discharger shall submit a sludge disposal plan describing the annual volume of sludge generated by the plant and specifying the disposal practices. The plan must also address any stockpiled sludge from the plant, both on-site and at the Port of Stockton. E. Receiving Water Limitations: Receiving Water Limitations are site specific interpretations of water quality objectives from applicable water quality control plans. As such they are a required part of this permit. However, a receiving water condition not in conformance with the limitation is not necessarily a violation of this Order. The Board may require an investigation to determine cause and culpability prior to asserting a violation has occurred (See also Finding 18). The discharge shall not cause the following in the receiving water: 1. Oils, greases, waxes, or other materials to form a visible film or coating on the water surface or on the stream bottom.