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WASTE DISCHARGE REREMENTS ORDER NO. -4- -KNIFE RIVER CORPORATION DBA KRC AGGREGATES AGGREGATE MINE AND WASTEWATER SYSTEM SAN JOAQUIN COUNTY shall furnish, under penalty of perjury, technical or monitoring program reports which the board requires. The burden, including costs of these reports, shall bear a reasonable relationship to the need for the reports and the benefits to be obtained from the reports." 28. The Board has notified the Discharger, and interested agencies and persons of its intent to prescribe waste discharge requirements for this discharge and has provided them with an opportunity fora public hearing and an opportunity to submit their written views and recommendations. 29. The Board, in a public meeting, heard and considered all comments pertaining to the discharge. 1. IT IS HEREBY ORDERED that Order No. 94-300 is rescinded and that Knife River Corporation dba KRC Aggregates, their agents, successors, and assigns, in order to meet the provisions contained in Division 7 of the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: A. Discharge Prohibitions: 1. Discharge of wastes to surface waters or surface water drainage courses is prohibited. 2.. Operation of an asphalt plant or a concrete plant shall not be performed without providing the Executive Officer at least 180 days notice prior to placement of the plant. The notice shall include a description of the wastewater generation which will result from the asphalt or concrete plant as described in Provision E.I.c. 3. The discharge of washwater from Readymix Portland Cement concrete plant operations to the settling ponds is prohibited. 4. The discharge.of domestic waste to the process wastewater settling ponds is prohibited. 5. Neither the treatment nor the discharge shall cause a nuisance or condition of pollution as defined by the California Water Code, Section 13050. 6. The discharge shall not cause the degradation of any water supply. 7. 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. 8. Gold recovery techniques shall not employ any chemical method of recovery. Chemical methods including-amalgamation, cyanide leach, or any other chemical method are prohibited. 9. The discharge or deposit of waste at this site from sources other than from the sand and gravel operations is prohibited.