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Metal Mining SWMP Guidance Document <br />Page 16 <br />d. Description of BMPs during Remediation Activities: The plan shall describe BMPs that will be <br />implemented to reduce the potential of remediation activities to contribute pollutants to <br />stormwater discharges. Activities that shall be addressed include vehicle maintenance, earth <br />moving, material storage and spill prevention. <br />This section is intended to address BMPs that will be used to control potential pollution sources that will be <br />created or exaggerated due to remediation activities. See page 4 of this document for further explanation of this <br />item. <br />e. Procedures for Disposal of Water Stored Within Mine Waste: The permittee must describe how <br />any water stored within the mine waste will be collected and/or routed to any storage or <br />treatment facilities. No discharge of this water shall be made to waters of the state, unless <br />separate permit coverage is obtained. <br />This general permit only authorizes stormwater dischazges; stormwater is precipitation-induced runoff. Water <br />stored in tailings impoundments or other azeas of mine waste is not runoff. The chazacteristics of these stored <br />waters can vary dramatically on a site-by-site basis and can have deleterious impacts if discharged into receiving <br />waters. Because of the nature of these waters (not runoff) and the potential water quality impacts, dischazge is <br />not authorized under this permit. An individual permit would be required which allows for site-specific <br />assessment of the quality, quantity and impacts of the stored water. <br />f. Description of Permanent BMPs, Final Site Stabilization, and Ultimate Land Use: The plan <br />shall include a description of the specific permanent measures that will be installed or used at <br />the mine-waste site. The description shall include any of the following if appropriate: <br />specifications for capping or isolation of the mine waste, method and type of revegetalion, and <br />other permanent BMPs. The plan shall also include a description of the ultimate land use after <br />remediation is complete. <br />The permanent BMPs, final stabilization, and ultimate land use of the site must meet the criteria described <br />above for permittees seeking to terminate coverage through the mine-waste remediation method. These include <br />removal or permanent isolation of raw materials, intermediate products, byproducts, fuushed products and <br />waste products, completion of all soil disturbing activities, and revegetation meeting the required criteria. <br />6. Consistency with Other Plans <br />SWMPs may reflect requirements for Spill Prevention Control and Countermeasure (SPCC) plans <br />under section 3Il of the CWA, or Best Management Practices (BMPs) Programs otherwise required <br />by a CDPS permit, and may incorporate any part of such plans into the SWMP by reference. The <br />SWMP may reflect information contained in approved plans submitted for other similar pollution <br />control programs, including the Voluntary Clean Up Program. (Voluntary Cleanup and <br />Redevelopment Act, CRS 25-16-303) as long as they contain the elements described above. These <br />plans must have been approved by the implementing agency prior to application for the Stormwater <br />Permit. Appropriate portions of these other plans may be incorporated in the SWMP by reference, <br />as Zong as a complete SWMP can be reproduced and submitted to the requesting agency within the <br />time frame specified in the request. Those portions of the referenced documents must be included in <br />the submittal. The SWMP must also be readily available to an on-site inspector. <br />If the facility, or a portion of it, is already regulated through another program which requires such things as <br />SPCC plans or good housekeeping measures, these can be included by reference. <br />