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Item-by-item guidance Chapter <br /> Category Specific Guidance: <br /> Residential development(Subp 19 and 19a)For projects along lakes or rivers, discuss the consistency of the project with the <br /> applicable shoreland,floodplain and special river management district ordinances, indicating how any inconsistencies will <br /> be resolved.Indicate whether the local ordinances have been officially approved by the DNR.For projects along lakes and <br /> rivers, address the impact of the project on water surface use.If on-site sewage systems will be used, discuss in Item Il.b.i in <br /> detail the suitability of the site conditions such as soils, terrain and lot sizes, and the potential for impacts on the ground <br /> water and surface waters, especially any lakes. The discussion should include information about local requirements for such <br /> systems. <br /> Recreational development(Subp 20 and 20a):If on-site sewage systems will be used, discuss in detail the suitability of the <br /> site conditions—soils, terrain, lot sizes—and the potential for impacts on the groundwater and surface waters, especially any <br /> lakes. The discussion should include information about local requirements for such systems.If effluent may impact a lake, a <br /> nutrient budget analysis should be included. <br /> Airport projects(Subp 2l):Discuss stormwater management and deicing management systems. <br /> Barge fleeting(Subp 23):Discuss impacts of construction and operation on the benthic(bottom) and aquatic habitat. <br /> Address in detail the potential conflicts between the barges and other watercraft.Discuss the potential for water pollution <br /> from spills of any materials carried on or transferred to or from barges, and any mitigation measures to be used. <br /> Marinas(Subp 25):If the project involves any dredging, details should be given about excavation, including construction <br /> methods; timing;volumes of dredged material;composition, with special attention to any contaminants which may be <br /> present;spoils disposal methods and location;and mitigation measures to minimize impacts of both dredging and spoils <br /> disposal,such as treatment of spoils site runoff. Disposal of dredge spoils may require an NPDES/SDS Dredged Disposal <br /> permit from the MPCA.Information should be obtained from the DNR or other agencies about existing watercraft use. The <br /> number and types of watercraft expected at the marina should be estimated, along with use characteristics:peak and average <br /> use, timing and length of season.In regard to over-crowding,provide at least an estimate of the number of acres of water <br /> surface per watercraft with and without the marina.Discuss the potential for water pollution from spills, runoff from the <br /> onshore facilities or any other sources, and any mitigation measures to be used. <br /> Stream Diversion(Sub 26):Include a detailed explanation of how and when excavation will be done; excavation acreage and <br /> cubic yardage;where the spoils will be deposited; measures to be taken to protect the rest of the stream from sedimentation <br /> during construction;and measures to stabilize the new channel and spoils to prevent erosion after construction.Disposal of <br /> the dredged spoils may require an NPDES/SDS Dredged Disposal permit from the MPCA. <br /> Wetlands and public waters(Subp 27):Describe in detail the physical changes to be made in the wetland or water body, <br /> including timing of work;methods of work;volumes, composition and placement of excavated materials or fill materials;and <br /> mitigation measures to prevent erosion and sedimentation. <br /> Historical Places(Subp 3l):For Item 11.a.ii, discuss if wells will be abandoned. <br /> Sports or entertainment facilities(Subp 34):Discuss in detail surface water runoff issues and mitigations. <br /> Environmental Quality Board EAW Guidelines—October 2013 30 <br />