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WASTE DISCHARGE REQUIREMENTS ORDER NO.115-2002-0220 -7- TEICHERT AGGREGATES TRACY ROCK PLANT SAN JOAQUIN COUNTY IT IS HEREBY ORDERED that Order No. 5-01-144 is rescinded and,pursuant to Sections 13263 and 13267 of the California Water Code, Teichert Aggregates, its agents, successors, and assigns, in order to meet the provisions contained in Division 7 of the California Water Code,and regulations adopted thereunder, shall comply with the following: [Note: Other prohibitions, conditions, definitions, and some methods of determining compliance are contained in the attached "Standard Provisions and Reporting Requirements for Waste Discharge Requirements" dated 1 March 1991.] A. Discharge Prohibitions: 1. Discharge of wastes to surface waters or surface water drainage courses is prohibited. 2. Discharge of wastes to the Flinkote settling ponds is prohibited. 3. Discharge of domestic waste to any settling pond is prohibited. 4. Discharge of waste classified as hazardous, as defined in Sections 2521(a) of Title 23, CCR, Section 2510, et seq., (hereafter Chapter 15), or `designated', as defined in Section 13173 of the California Water Code, is prohibited. 5. Discharge or deposition of waste from sources other than the processing and recycling operations described herein is prohibited. 6. Addition of chemicals to the gravel processing operation is prohibited. 7. Chemical methods of gold recovery including amalgamation and cyanide leaching are prohibited. 8. Operation of, or discharge of waste from, an asphalt plant or a concrete plant is prohibited unless expressly approved in writing by the Executive Officer. 9. Surfacing of wastewater from the septic tank or septic tank leachfield is prohibited. B. Discharge Specifications: 1. The average monthly discharge flow to the settling ponds shall not exceed 6.0 mgd. 2. The discharge shall remain within the designated settling ponds at all times. Wastewater shall not be discharged to areas not specifically defined as such in this Order. 3. The wastewater treatment ponds shall not have a pH of less than 6.5 or greater than 8.5. 4. No waste constituent shall be released or discharged, or placed where it will be released or discharged, in a concentration or a mass that causes violation of the Groundwater Limitations.