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WASTE DISCHARGE REQUIREMENTS -7- <br /> CITY OF MANTECA AND CITY OF LATHROP <br /> WASTEWATER QUALITY CONTROL FACILITY <br /> SAN JOAQUIN COUNTY <br /> E. Receiving Water Limitations: <br /> Receiving water limitations are site specific interpretations of water quality <br /> objectives from applicable water quality control plans. As such they are a required <br /> part of the permit. However, a receiving water condition not in conformance with the <br /> limitation is not necessarily a violation of this Order. The Board may require an <br /> investigation to determine cause and culpability prior to asserting a violation has <br /> occurred. <br /> 1 . The discharge shall not cause the dissolved oxygen concentration in the <br /> San Joaquin River to fall below 5 mg/1 . <br /> 2. The discharge shall not cause visible oil , grease, scum, foam, floating or <br /> suspended material in the receiving waters or watercourses. <br /> 3. The discharge shall not cause concentrations of any materials in the <br /> receiving waters which are deleterious to human, animal , aquatic, or plant <br /> life. <br /> 4. The discharge shall not cause aesthetically undesirable discoloration of <br /> the receiving waters. <br /> 5. The discharge shall not cause fungus, slimes, or other objectionable <br /> growths in the receiving waters. <br /> 6. The discharge shall not cause bottom deposits in the receiving waters. <br /> 7. The discharge shall not increase the turbidity of the receiving waters by <br /> more than 10% over background levels. <br /> 8. The discharge shall not alter the normal ambient pH of the receiving water <br /> more than 0.5 units. <br /> 9. The discharge shall not create a zone, defined by water temperatures of <br /> more than 1°F above the natural receiving water temperature, which exceeds <br /> 25 percent of the cross-sectional area of the main river channel at any <br /> point. <br /> 10. The discharge shall not cause a surface water temperature rise greater <br /> than 4°F above the natural temperature of the receiving water at any time <br /> or place. <br /> 11 . The discharge shall not cause floating or suspended materials in the <br /> receiving waters. <br /> 12. The discharge shall not cause a violation of any applicable water quality <br /> standard for receiving waters adopted by the Board or the State Water <br /> Resources Control Board as required by the Clean Water Act and regulations <br />