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drainage techniques to reduce stormwater runoff and encourage more <br />infiltration. <br />(b) Biofiltration- A stormwater quality and quantity BMP that utilizes <br />vegetation and soil to filter and absorb pollutants including nutrients, <br />hydrocarbons and metals and remove water volume through <br />evapotranspiration. <br />(c) Filtration -A stormwater quality BMP that uses either natural media <br />such as soil or vegetation or manufactured media to trap pollutants such <br />as nutrients and particles in surface water. <br />(d) Marginally Degraded Wetland -State of degradation for existing <br />wetland reflecting score of low /high or high /low for functional indicators <br />out /et condition /vegetative quality, respectively, using MnRAM 3.0 or <br />other state - approved wetland functional methodology. <br />(e) Moderately Degraded Wetland -State of degradation for existing <br />wetland reflecting score of low /medium or medium /medium for <br />functional indicators outlet condition /vegetative quality, respectively, <br />using MnRAM 3.0 or other state - approved wetland functional <br />methodology. <br />(f) Natural Heritage Ranking - Plant community ranking methodology as <br />described by the Minnesota Department of Natural Resources Natural <br />Heritage Program, Minnesota's Native Vegetation version 1.5 or as <br />amended. <br />(g) Non - Degraded Wetland -State of degradation for existing wetland <br />reflecting score of medium /high, high /medium or high /high for <br />functional indicators outlet condition /vegetative quality, respectively, <br />using MnRAM 3.0 or other state - approved wetland functional <br />methodology. <br />(h) Partially Drained Wetland- A wetland that has had its original, natural <br />hydrology altered to a drier hydrologic regime. <br />RCWD Proposed Rule RMP -3 4 <br />October 8, 2008 <br />• <br />• <br />• <br />