2005-12-02_PERMIT FILE - C1981019

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COLORADO DEPARTMENT OF PUBLIC HEALTH & ENVIRONMENT -Water Quality Control Division Rationale -Page 7 Permit No. COR-040000 Vl. TERMS AND CONDITIONS OF PERMIT (cont.) c. Stormwater management controls - /dentification of potential pollutam sources and BMPs 1) Stormwater diversion - 2) Sediment and erosion prevention d. Comprehensive inpeuion - Additional STi'MP Reouirements for Sites Seeking Permit Terminations In the evem that the permtttee wishes to remediate an inacive mine site and terminate permit coverage, prior to remediarion activities, the SWMP must be amended ro incltuie the following items, and the permittee must notify the Division of the change in status. e. Additionallrems 1) Doutmemation of land owner permission (if the perntittee is not the owner) 2) Photographs 3) Description of remedial action to be performed 4) Ducription of BMPs during remediation auivitiu 5) Procedure for disposal of any water stored within mint waste 6) Descriprion of permanem BMPs to be used, Etna! site stabilization, and ultimate land use 3. SWMP Development. Coordination and Format Some auivities required under the SWMP may already be in place. However, the SWMP will require the permittee to coordinate these auivitiu with any necessary new aaivitiu in an orderly manner, so that the result is the reduuion or elimination of pollutants reaching state waters from areas no; limited by numeric • effluem limitation. It is the permitree's responibiliry to notify the Colorado Division of Minerals and Geology (CDMG) of any changes at their site resulting from the implememation of the SWMP. This norifiwtion allows the CDMG to review the SWMP and incorporate any potential revision which might be needed imp the facility's reclamation permit. It is important to verify that the site reclamation permit matches the SWMP. -Such information is usually contained in Exhibit G of 110 reclamation permits. The SWMP may rely upon information developed for other similar pollmion control programs such as the SPCC (Spill Prevemion Comrol and Coumermeasuru) plan, Vofumary Cleanup Plan, or the Mined Land Reclamation Plan. Appropriate portion of these other plans may be incorporated in the SWMP by reference, as long as a complete SWMP can be reproduced and submitted to the requuting agency within the time frame specified in the request. Those portion of the referenced documems must be incbrded in the submittal. The SWMP must also be readily available ro an on-sire inpeuor. C. Comprehensive Facility Inspections For active mining operations, the permittee shall make a thorough inspeuion of their stormwater management rystem, at least twice per year (n the spring and fall), as detailed in Part l.D.S of the permit. These inpeuioru must be documemed and summarized in the Annual Report {see Part I.E.1 of the permit). For inactive mining operation, a thorough inspection of the stormwater managemem rystem is required at Ieast once per year. Where annual inpeuion of inauive mine are imprauicable, an inspeuion and certification of compliance are required once every three years by a Registered Professional Engineer, as detailed in Part I.D.S of the permit. Thee inpections must be documemed and summarized in the Compliance Report (see Part l.E.1 of the permit). For remediation projects, the permittee shall mdse a thorough inspeuion of their srormwmer rttanagemem rystem ar Least once per year (during the field season). Where annual inpection of inauive mines are imprauicable, an inspection and certification of compliance are required once every two years. These inpection must be documented and summarized in the Annual Report (see Part I.E.1 of the permit).