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(f) noteworthiness, including special qualities such as historic signficance, critical habitat for endangered plants and animals, or ottiérsi *This evaluation must also include a determination of whether the wetland alteration being proposed requires permits, reviews, or approvals by other local, state, or federal agencies such as a watershed district, the Minnesota Department of Natural Resources, or the united states Army Corps of Engineers. The applicant will be so advised. (2) Alterations must be designed and conducted in a manner that ensures only the smallest amount of bare ground is exposed for the shortest time' possible; (3) Mulches or similar materials must be used, where necessary, for temporary bare soil coverage, and a permanent vegetation cover must be established as soon as possible; (4) Methods to m~n~m~ze soil erosion and to trap sediments before they reach any surface water feature must be used; (5) Altered areas must be stabilized to acceptable erosion control standards consistent with the field office technical guides of the local soil and water conservation districts and the united states Soil Conservation service; (6) Fill or excavated material must not be placed in a manner that creates an unstable slope; (7) Plans to place fill or excavated material on steep slopes must be reviewed by qualified professionals for continued slope stability and must not create finished slopes of 30 percent or greater~ (8) Fill or excavated material must not be placed in bluff impact zones; (9) Any alterations below the ordinary high water level of pUblic waters must first be authorized by the commissioner under Minnesota statqtes, section 105.42; (10) Alterations of topography must only be allowed if they are accessory to permitted or conditional uses and do not adversely affect adjacent or nearby properties; and (11) Placement of natural rock riprap, including associated grading of the shoreline and placement of a filter blanket, is permitted if the finished slope does not exceed three feet horizontal to one foot vertical, the landward extent of the riprap is within ten feet of the ordinary high water level, and the height of the riprap above the ordinary high water level does not exceed three feet. "Lv