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55 <br />MINNESOTA RULES 6115.0231 <br />development on the island, and the design provides for any public navigational needs and is consistent <br />with the natural surroundings. <br />Subp. 3. Intakes and outfalls. The construction, reconstruction, or relocation of all water <br />intake and sewer outfall structures placed in public waters shall be approved if all of the following <br />criteria are met: <br />A. adequate attention is given to methods of screening the structure from view as much as <br />possible from the surface of the public water through the use of existing vegetation or new plantings; <br />B. the project is not detrimental to public values, including but not limited to fish and <br />wildlife habitat, navigation, water supply, water quality, or storm water retention; <br />C. no site conditions will require frequent future disruption of the beds of public waters; <br />D. adequate precautions are planned during and after construction to prevent silt, soil, and <br />other suspended particles from being discharged into public waters; <br />E. adjacent to the intake structure, the banks and bed of the public water are protected from <br />erosion and scour by placement of suitable riprap shore protection; <br />F. the banks are revegetated by seeding and/or sodding; <br />G. the structure is designed by a professional engineer; <br />H. for intake structures, excavation is detailed in the application and on design plans. When <br />necessary, a water appropriation permit must be obtained from the department prior to operation <br />of the intake structure. An appropriate sized screen must be used to prevent fish intake; and <br />I. outfall structure design: <br />(1) when necessary, incorporates a stilling -basin, surge -basin, energy dissipator, or <br />other device or devices to minimize disturbance and erosion of natural shoreline and bed resulting <br />from peak flows; <br />(2) when feasible, utilizes discharge to storm water treatment ponds, artificial stilling <br />or sedimentation basins, or other devices for entrapment of floating trash and litter, sand, silt, debris, <br />and organic matter prior to discharge to public waters; and <br />(3) when feasible, maximizes use of natural or artificial ponding areas to provide water <br />retention and storage for the reduction of peak flows into public waters. <br />Statutory Authority: MS s 103 G. 315; 105.415 <br />History: 8 SR 533; 25 SR 143; 27 SR 529 <br />Published Electronically: June 11, 2008 <br />Copyright © 2019 by the Revisor of Statutes, State of Minnesota. All Rights Reserved. <br />