Laserfiche WebLink
WASTE DISCHARGE REQUIRE�NTS <br /> CITY OF TRACY <br /> SAN JOAQUIN COUNTY -5- <br /> 7. Survival of test fishes in 96-hour bioassays of undiluted waste shall be <br /> no less than: <br /> Minimum for any one bioassay - - - - - - - - - 70% <br /> Median for any three or more bioassays - - - - 90% <br /> 8. By-pass or overflow of untreated or partially treated waste is prohibited. <br /> D. Holding Ponds: <br /> 1. The dissolved oxygen content of holding ponds shall not be less than 1.0 <br /> mg/l for 16 hours in any 24-hour period. <br /> E. Sludge Disposal : <br /> 1. Collected screening, sludges, and other solids removed from liquid wastes <br /> shall be disposed of in a manner approved by the Executive Officer. <br /> F. Receiving Water Limitations: <br /> 1. The discharge shall not cause the dissolved oxygen concentration in <br /> Old River to fall below 5.0 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 esthetically 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 increase the normal ambient temperature of the <br /> receiving water more than 5"F (3`C) . <br /> 10. The discharge shall not cause floating or suspended materials in the <br /> receiving waters. <br />