SITE INFORMATION AND CORRESPONDENCE_1993-2003

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t • WASTE DISCHARGE REQUIREMENTS - 7 - DEFENSE 7 - DEFENSE DISTRIBUTION REGION WEST SHARPE INTERIM GROUND WATER CLEANUP SYSTEM SAN JOAQUIN COUNTY C. 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. The Discharger shall submit a sludge disposal plan within 60 days following adoption of this Order or at least 90 days in advance of the need to dispose of sludge. 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. D. Receiving Water Limitations: Receiving water limitations are based upon water quality objectives contained in the Basin Plan. As such, they are a required part of this permit. French Camp Slough is considered the receiving water. Since French Camp Slough is tidally influenced, receiving water monitoring will be done at the irrigation canal. Annual monitoring of French Camp Slough will be conducted to ensure ultimate compliance with this section. The discharge shall not cause the following in the receiving water: 1. Concentrations of dissolved oxygen to fall below 7.0 mg/l. 2. Arsenic concentrations in French Camp Slough to exceed 10 µg/l. 3. Oils, greases, waxes, or other materials to form a visible film or coating on the water surface or on the stream bottom. 4. Oils, greases, waxes, floating material (liquids, solids, foams, and scums) or suspended material to create a nuisance or adversely affect beneficial uses. 5. Aesthetically undesirable discoloration. 6. Fungi, slimes, or other objectionable growths. 7. Turbidity to increase more than 20 percent over background levels. 8. The normal ambient PH to fall below 6.5, exceed 8.5, or change by more than 0.5 units.