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Each Permittee must create a map of their facility.The map shall be of a 1:24,000 or larger scale.What this means is that <br /> every inch on the map represents 2,000 feet on the ground.The map needs to contain: <br /> a) The surface water body's name which receives your facility's discharges(if the receiving water is beyond the scale of <br /> the map,an arrow in the direction of the water and its name is sufficient). <br /> b) Identify all impervious surfaces at the facility. <br /> c) Direction of stormwater flow(indicated by arrows). <br /> d) Identify location of all industrial activities and significant materials. <br /> e) Location of structural Best Management Practices(BMPs). <br /> fl Location of all impaired waters,within a mile of any monitoring location (include name and impairment). <br /> g) Name and location of any water described in Appendix A,within a mile of any monitoring location. <br /> h) Location of all storm sewer inlets. <br /> i) Location of all loading dock drains(be sure to include those connecting to storm sewer). <br /> j) Location of every Benchmark Monitoring Location(give a unique ID starting with BML01, BML02, etc.,and be sure to <br /> denote if these are located within a mile of impaired or appendix A listed waters). <br /> k) Location of every Effluent Monitoring Location (give a unique ID starting with EML01, EML02, etc.). <br /> I) Location of any non-stormwater discharges. <br /> 4. Assessment of Industriat Activities and Significant Materials <br /> It is important for the Permittee to know what materials and activities are taking place and potential sources of pollution to <br /> stormwater. Understanding these activities and materials will enable you to more effectively manage stormwater.The Permittee <br /> should create a list all applicable industrial activities taking place at the facility as referenced in Appendix D, and also include <br /> other activities taking place(not limited to): <br /> • Fueling <br /> • Boat oil changes and light maintenance <br /> • Liquid storage tanks 1 - 2000 underground fuel tank <br /> B. Assessment of materials and associated pollutants <br /> When considering all of the significant materials at your facility evaluate whether any material is stored or handled that <br /> may potentially be a source of pollutants to stormwater. Include a list all of the materials and the pollutants associated <br /> with the identified significant materials.A Material Safety Data Sheet(MSDS) may be useful for this purpose. <br /> Material Pol lutant <br /> Ex. sawmill blades, lubricants Zinc%il <br /> Gasoline Gasoine <br /> When considering materials to include:raw materials,inte�nediate products,by-products,final products,and waster products. <br /> 5. Storm Water Control Measures Implementation (Part III implementation) <br /> The SWPPP must document all of the stormwater control measures required in Part III of the Permit, including BMPs that are <br /> used to manage stormwater.The Permittee should include all BMPs within each stormwater control category specified in Part <br /> II I of the permit.The location and type of BMP along with implementation description of how these BMPs will work and be <br /> measured should be included in the SWPPP. <br /> Good housekee in <br /> BMP Im lementation date Area/Activi Potential ollutants <br /> Rock sediment tra Cleaned out 5-14 Browns Ba side N/A <br /> Natural Grasses Planted 5-14 Browns Ba Side N/A <br /> www.pca.state.mn.us • 651-296-6300 • 800-657-3864 • TTY 651-282-5332 or 800-657-3864 • Available in altemative formats <br /> wq-strm3-28 • 11/7/11 Page 2 of 7 <br />