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t*. <br />BNVXROMHBIIT ItOVBNBIR# 19S1 <br />10.DRB06XN6 OR OTBRR ALTERATION OP LAKE BEDS OR NETLANDS WILL BE <br />DISCOURAGED BECAUSE OP ADVERSE SHORT-TERM AMD LONG-TERM EPPBCTS <br />ON WATER QUALITY. Oradglng r«l«aa«s tha filtration capacity of <br />loat vagatation, which togathar advaraaly aCfaota watar quality <br />for long parioda of tina. Dradging of laka bada or watlanda will <br />not ba parnittad unlaaa it ia elaarly danonatratad that tha <br />dradging propoaal ia tha aininal inpaot aolution to a problaa <br />of gonoral public concerna <br />A. <br />^0 <br />Opan-watar, laka bad dradging will ba parnittad only <br />in linitad eirounataneaa, only whan abaolutaly <br />nacaaaary to naintain oxiating natural riparian aecaaa <br />parnanantly loat by aonathing bayond tha control of <br />tha land«|>i>nar. and«of a longar dock* uaa of a joint <br />dock* or uaa of another araa of tha ahoralina. Dradging <br />of naw channala or inlata will not ba approved to provide <br />navigable riparian aooaaa whara none axiatad naturally. <br />Bxiating dredged channala are expected to ailt-in • <br />naturally, kadradging ia aa anvironnantally diaruptiva <br />aa naw dradging. Naintananca dradging will ba aubjaet <br />to tha aana atandarda of review aa naw dradging* and <br />will not uaually ba approved unlaaa a largo nuabor of <br />ttsara are affected* auoh aa ia the public channala <br />batwaaa baya. Periodic low watar coaditioaa or an <br />owner*a daaira for daapar draft watercraft are not <br />aufficiant raaaona for diarupting aaaaitiva laka bada. <br />n <br />a <br />B.Dredging or filling of upland watlanda or ahoralina <br />■arahaa daatreya watlanda vegetation* ranoving nutrient <br />aaainllativa oapacity and incraaaing tha velocity of <br />atom watar diacharga to tha lakaa. Dradging* filling <br />or other alteration of daaignatad watlanda will ba <br />prohibited unlaaa an overriding hardahip ia danonatratad <br />to juatify a variance froa thia policy. Tha creation <br />of wildlife ponda or aternwatar retention ponda ia <br />encouraged* but only if tha araa to ba altered ia not <br />within a daaignatad wetland. All wildlife ponda ahall <br />ba eenatructad to DNR atandarda* including upland <br />diapoaal and aroaion control of apoila. <br />isvj <br />Mm. <br />■:n, - f-d CMP 3-21