2012-01-09_PERMIT FILE - C1981035A (2)

Home Browse Search

PARTI Page No. 6 Permit No. COG-850000 B. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS , 2. Stormwater Management Plan (SWMP) __ • A Stormwater Management Plan (SWMP) shall be developed for the portion of each facility covered by this section of the permit. The SWMP shall be prepazed in accordance with good engineering practices. (A registered engineer need not complete the plan.) The plan shall identify potential sources of pollution (including sediment), which may reasonably be expected to affect the quality of stormwater dischazges associated with the mining operation. In addition, the plan shall describe and ensure [he implementation of best management practices (BMPs), which will be used to reduce the pollutants in stotmwater discharges, associated with mining activity. Mining operations must implement the provisions of the SWMP required under this part as a condition of this permit. The Division reserves the right to request and review the plans, and to require additional measures to prevent and control pollution, as needed. The SWMP shall describe all areas that have not been previously permitted, and which meet the defuiltion of a stormwater discharge in 40 CFR 122.26. Examples of such areas are roads and railroad lines used for transportation to and from the site, outslopes of ponds, inactive loadouts, sites used for storage and maintenance of material handling equipment, and areas granted small area exemptions. a) SWMP Contents ~ - The SWMP shall include the following items, at a minunum: 1) Site Map The plan shall provide a site trap or maps, which indicate, at a minimum: - Mining site botmdaries - Access and haul roads - Siormwater outfalls and an outline of the drainage azea of each stormwater outfall - Aa estimate of the direction of flow • _ Materials handling azeas Each existing stmctural control measure to reduce pollutants in stormwater runoff - Areas used for storage or disposal of overburden, materials, soils or wastes, including tailings piles or ponds - Areas used for minernl milling and processing - Springs, streams, wetlands and other surface waters - Location of mine drainage or any other process water discharge points - botmdary of azea that contributes runoff to outfalls that aze subject to effluent limitafions guidelines. - Date the map was prepazed 2) Descripticat of Potential Pollutant Sourcgs/Material Inventory The plain shall provide a description ofall potential sources (activities and materials), which mayreasonably be expected to add pollutants to stotmwater dischazges. Such sources may include haul roads, equipment storage and maintenance aeeas, fuel storage areas, etc. ~ _ In each case where stormwatet pollution potential exists, appropriate preventive measures must be taken and documented. 3) Stormwater Quality Controls Bach trtining site covered by this permit shall develop a description of stormwater quality controls appropriate for that site, and implemeu[ such controls. The appropriateness and priorities of controls in the plan shall reflect idenfified potential sources of pollutams at the site. The description of storrttwater quality controls shall address the following minimum components, including a scltedule for implementing such controls: a. SWMP Administrator -The SWMP shall identify a specific individual or individuals within [he mining organizationwho is responsible for developin;; tkte SWMP and assisting the mine operator in its implementation, maintenance, and revisior b. Materials Handling and Srill Prevenfion -Where materials can impact stormwater rtmoff, BMPs that reduce the potentiat for contamination shall be described. For example, materials should be stored and handled in covered areas whenever possible to prevent contact with stormwater; fuels and other chemicals should be stored within berms or secondary containment devices to prevent leaks and spills from entering stormwater mnoff.