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APPENIIIX A - STORMWATER MANAGEME~PLAN (SWMP) ~~i^s <br />In this document, the text in bold itaUcs is quoted directly from the Sand and Gravel general permit. The text in straight <br />type is provided as guidance in the preparation of your SWMP. <br />The requirement to develop a Sarmwater Management Plan (SWMP) prior a application for the general permit applies <br />to all facilities. The applicant shall develop a SWMP for their facility, and certify in Item 8 of the application that it has <br />been completed. The SWMP shall be prepaed in accordance with good engineering practices. (The plan need not be <br />completed by a registered engineer.) <br />The plan shall identify potential sources of pollution ('including sediment) which may reasonably be expected a affect the <br />quality of sarmwater discharges associated with the mining activity. In addiflon, the plan shall describe and ensure the <br />implementation of Best Management Practices (BMPs) which will be used a reduce the pollutants in sarmwater <br />discharges associated with mining activity. BMPs are defined as physical, structural, and/or managerial practices that, <br />when used singly or in combination, prevent or reduce pollution of water. <br />Mining operations must certify the completion of their SWMP, as described in this document. Implementation of <br />the plan will be required at the time that coverage under the general permit begins. The Division reserves the right to <br />request and review the places, and to require additional measures to prevent and control pollution, as needed. <br />When preparing your plan, make sure a address each item. If it is not applicable a your site, briefly explain why. A <br />simple "Not Applicable" is tat enough. Also note that the SWMP should include nay existing sarmwater controls at <br />your site, not just new or proposed ones. Take full credit for what you aze already doing. <br />The SWMP shall include the following items, at a minimum: <br />I. She blap <br />The plat shall provide a site map or maps which indicate ~ o minimum: <br />- Mining site boundaries <br />- Access and haul roads <br />- Stormwater outfalls and an outline ojthe drainage area ojeoch stormwater outfall <br />- An estimate ojthe dircetron ojJlow <br />- -Materials handling areas <br />- Bach existing structural control measure to reduce poQutants in stormwater runoff <br />- -Areas used jor storage or drsposal of overburden, materials, soils or wastes <br />- Areas used jor mineral millirtg and processing <br />- Spnngs, streans, wetlands and other surface water? <br />- Location of mrne drainage or any other process water <br />- Boundary ojtributary area that is subject to e,QRuent limitations <br />- Date the map was prepared <br />The drainage areas shown should include the portions of the site where industrial activities occur, as well as those <br />portons contributing sarmwater that mixes with runoff from the ibeustrial azea. Therefore, the enfire drainage azea <br />where industrial activities occur must usually be included. <br />Aside from mining, industrial activities can include equipment washing, materials savage, vehicle maintenance or <br />fueling, incineration, waste treatment, savage or disposal, shipping/loading/unloading, etc. You do not need a include <br />industrial activities which only take place indoors, udess there is some part or aspect of the activity witlt which <br />sarmwaur could come in contact. For example, if all vehicle maintenance is done indoors, but vehicle savage or <br />fueling is outside, the vehicle savage or fueling azea must be addressed. <br />It is a good idea to start with a portion of dre USGS (U.S. Geological Survey) quadrangle map showing the site. These <br />are available and easily obtainable for the enure state; they show a lazge amount of information for very liWe effort. <br />