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1C, Draft Comp Plan
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1C, Draft Comp Plan
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4/18/2008 11:28:52 AM
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4/18/2008 11:27:28 AM
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Draft Comp Plan
General - Type
Agenda Item
Date
4/21/2008
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<br />City of Arden Hills - Comprehensive Plan - DRAFT <br /> <br />10.5.2 Wetland Restoration Assessment <br /> <br />All wetland areas within the RCWD were evaluated to determine their potential <br />for vegetation andlor hydrologic restoration. A wetland's potential for either type <br />of restoration was determined in the following manner: <br /> <br />a Vegetation Restoration: The Minnesota Land Cover Classification System <br />(MLCCS) data includes information on whether or not a natural area is <br />dominated by invasive species. Wetlands dominated by invasive species <br />represent an opportunity to restore native vegetation. Taking this into <br />account, wetland communities that were recorded in the MLCCS as <br />dominated by invasive species and greater than 2 acres in size were <br />included in this category and displayed on the map. <br />a Hydrologic Restoration: National wetland inventory (NWI) data and ditch <br />inventory data were used to identify wetlands with the potential for <br />hydrologic restoration. The location of partially drained wetlands in the <br />NWI data and the location of known ditches were used to identify wetlands <br />that have been partially drained and could be restored to more natural, <br />flow through hydrology without necessarily changing the hydrologic <br />regime. Only polygons 1 acre or larger were included and displayed on the <br />map. Wetland areas with these characteristics that were in close proximity <br />to existing infrastructure (homes, businesses and roads) were removed <br />from consideration. <br /> <br />10.5.3 Lake water quality assessment <br /> <br />Each lake located within the Rice Creek Watershed District was evaluated to <br />determine its potential for water quality impairment due to excessive nutrients <br />(Table X). The lakes fell into one of five categories: <br />a No data: Not enough water quality data available for evaluation. <br />a Listed on 303(d) list of impaired waters: Lake is currently on the impaired <br />waters list (TMDL list) for excessive nutrients. (Lakes that are on the <br />impaired waters list only due to high levels of mercury, and not due to <br />excessive nutrients, are not included in this category.) <br />a Potential to become impaired: Available water quality data suggest that <br />the lake is currently not impaired. Due to development pressure or to <br />borderline water quality conditions, this lake has the potential to become <br />impaired in the near future. <br /> <br />DRAFT <br />4/18/2008 <br /> <br />73 <br />
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