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PART I <br />Page 7 <br />Permit No. COR-040000 <br />B. SfORMWATER MANAGEMENT PLAN -ACTIVE MINES (cont.) <br />ce~fication to the pnseat method of on-site storage or disposal; materials management practices employed to <br />m;n;m;n, contact of these materials with stormwater runoff between July 1, 1989 end the present; <br />b. A list of signifu:ant spills end significant leaks of toxic or hazardous pollutants that occurred at the facility from <br />three years prior to permit certification to the present; <br />c. For each mining site area that generates stortmwter discharges with a reasonable potential for containing <br />pollutants, identification of the potential pollutants which are likely to be present in the smrmwater discharges; <br />and <br />d. A sttam+sry of any existing discharge sampling data describing pollutants in the smrmwater discharges. <br />Stormwater Quality Controls <br />Each mining operation certified under by this permit shall develop a description of stormwater quality controls appropriate <br />for that site, and implement such controls. The appropriateness and priorities of controls in the plan sba11 reflect <br />identified potential sources of pollutants at the mining site. The description of stormwater quality controls shall address <br />the following minimtun components, including a schedule for implementing such controls: <br />a. SWMP Admirrislrator -The SWMP shall identify a specific individual or individuals within the mining <br />organirrtion who is responsible for developing the SWMP and assisting the mine operator in its implementation, <br />maintenance, and revision. The activities and responsibilities of the adminis4ator should address all aspects of <br />the facility's SWMP. <br />b. Risk Identification and Assecvnent -The SWMP shall assess the potential of pollutant sources (including source <br />of process water that might become mixed with stormwater) at the mine to contribute pollutants to stormwater <br />discharges associated with mining activity. Each of the following shall be evaluated for the reasonable potential <br />for contributing pollutants to nmoff: <br />-loading and unloading operations; <br />- outdoor stooge of chemicals or equipment <br />- outdoor milling or processing activities; <br />- historic mine drainage; <br />tailings Ponds: <br />- cnuhing facilities or significant dust and particulate generating activities; <br />- an-site waste disposal practices; and <br />- stockpiles of overbttrdw, raw material, intermediate products, byproducts, finished products or waste <br />products; <br />Factors to consider include the toxicity of the material; quantity of chemicals used; amount of material processed; <br />the likelihood of contact with stormwater, and history of significant drainage, leaks or spills of toxic or hazardous <br />pollutants. In each case where stormwater pollution potential exists, appropriate preventive measures must be <br />identified and implemented. <br />c. Preventive Maintenance -The SWMP shall identify a preventive maintenance program. This program shall <br />involve maintenance of stormwater mwagemeat devices (maintenance of dikes separating mine drainage from <br />stormwater, cleaning oillwater separators, catch basins, etc.) as well as maintenance of equipment and systems <br />to prevent conditions that could cause breakdowns or failures resulting in discharges of pollutants to surface <br />waters. <br />d. Good Housekeeping -The SWMP shall identify good housekeeping procedures that will be followed by the <br />mining operation. Good housekeeping requires the maintenance of a clean, orderly facility. This part of the <br />SWMP should address cleaning and maintemnce schedules, trash disposal and collection practices, grounds <br />maintemnce, etc. <br />