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• • PARTI Page 9 Permit No. COG-500000 C. EFFLUENT LIMITATIONS AND CONDITIONS - STORMWATER DISCHARGE 1) SWMP Administrator -The SWMP shall identify a spxific individual or individuals within the mining organirrtion who is responsible for developing the SWMP and assisting the mine operator in its implementation, maintenance, and revision. 2) Materials Hendlin¢ and Spill Prevmtion -Where materials can impact stormwater twtoff, BMPs that reduce the potential for contamination shag be described. For example, materials should be stored and hendlod in coveted areas whenever possible m prevmt contact with stormwater; fuels and other chemicals should be stored within berms or secondary containment devices to prevmt leaks and spills from entering atorrmwter runoff. 3) Erosion end Sediment Controls - Describe BMPs that will be used to reduce erosion end prevmt sediment delivery m State waters. These should include structural (such as silt fence;>, sediment ponds, drop swctures, chock dams) and non-structural (such as mulching and revegetation) methods. 4) Testin¢ for Non-Stormwater -The Stormwater lZttaliry Controls section of the SWMI' shall include documentation that the discharges have bcen tested or evaluated for the presence of non-stormwater discharges such as mine drainage, spoil springs, sanitary waste, or process water of tmy kind. The documentation shall include a description of the results of any test for the presence of non-stormwater discharges, the method used, the date of any testing, and the on-site drainage points that were directly observed during the test. Except for (lows from fire fighting activities, sources of landscaping irrigation remm flow or springs (except spoil springs) that are combined with stormwater discharges associated with industrial utivity must be identified in the plan. 3. Facility Irtsoections Qualified persomel identified by the operator shall make a comprehensive inspection of their stormnvater management system, at least twice per year (in the spring and fall), except as provided in paragraphs d and e, below. These comprehensive inspections must be documented and summarized in the amual report (ace Part I.D 4 of the permit). a. Materiel handling areas, disturbed areas, areas used for material storage that are exposed to precipitation, and other potential sources of pollution identified in the SWMP in accordance with Part LC.2 0:' this permit shall be inspected for evidence of, or We potential for, pollutants entering the drainage system. Structural stormwater management measures, sediment end control measures, and other strucmral pollution prevention measures identified in the plan shall be observed to ensure that they are operating correctly. A visual inspection of equipment Headed to implement the plan, such as spill response equipment, shall be made. b. Based on the results of the inspection, the description of potential polluroat sources and pollution Prevmtion measures identified in the plan shall be revised as appropriate within two weeks of such inslxction, Such revisions shall provide for implementation of any changes to the plan in a timely roamer, but in oo case more than 60 days after the inspection. c. A report summarizing the scope of the inspection, persomel making the inspection, We datr{s) of the inspection, major observations relating to the implementation of the SWMP, and actions taken in accordance with paragraph (b), above, shall be made and retained as part of the SWMP for at least thrt~ years. The report shall be signed in accordance with Pert LD.10 of this permit. d. Where semi-annual site inspections are shown in the plan to be impractical for sites where rm employce is not smtioned or does not routinely visit the site, inspections es required in this part shall be conducted et appropriate intervals specified in the plan, but never less then once in two years.