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6120.3300 Minnesota Rule Page 13 of 13 (3)Other outside lighting may be located within the shore impact zone or over public waters if it is used primarily to illuminate potential safety hazards and is shielded or otherwise directed to prevent direct illumination out across public waters. This does not preclude use of navigational lights. Subp. 11. Storm water management.Local governments must consider proper storm water management in all reviews, approvals, and permit issuances under shoreland management controls adopted under parts 6120.2500 to 6120.3900. The following general and specific standards must be incorporated into local government shoreland management controls and their administration. A. The following are general standards: (1)When possible, existing natural drainageways, wetlands, and vegetated soil surfaces must be used to convey, store, filter, and retain storm water runoff before discharge to public waters. (2)Development must be planned and conducted in a manner that will minimize the extent of disturbed areas, runoff velocities, erosion potential, and reduce and delay runoff volumes. Disturbed areas must be stabilized and protected as soon as possible and facilities or methods used to retain sediment on the site. (3)When development density, topographic features, and soil and vegetation conditions are not sufficient to adequately handle storm water runoff using natural features and vegetation, various types of constructed facilities such as diversions, settling basins, skimming devices, dikes, waterways, and ponds may be used. Preference must be given to designs using surface drainage, vegetation, and infiltration rather than buried pipes and human-made materials and facilities. B.The following are specific standards: (1)Impervious surface coverage of lots must not exceed 25 percent of the lot area. (2)When constructed facilities are used for storm water management, they must be designed and installed consistent with the field office technical guide of the local soil and water conservation districts. (3)New constructed storm water outfalls to public waters must provide for filtering or settling of suspended solids and skimming of surface debris before discharge. Subp. 12.Mining of metallic minerals and peat, as defined by Minnesota Statutes, sections 93.44 to 93.51.Mining of metallic minerals and peat shall be a permitted use provided the provisions of Minnesota Statutes, sections 93.44 to 93.51, are satisfied. Statutory Authority: MS s 16B.59 to 16B.75; 105.485; 103F.211; 326B.101 to 326B.194 History: 13 SR 3029; 17 SR 1279; 23 SR 2042; L 2005 c 56 s 2; L 2007 c 140 art 4 s 61; art 13 s 4; L2008c337s64 Posted:June 11, 2008 https://www.revisor.mn.gov/rules/?id=6120.3300 5/1/2012