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04-16-2007 Planning Commission Packet
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04-16-2007 Planning Commission Packet
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� <br /> � <br /> , <br /> � <br /> � Plants were identified using standard regional plant keys. Taxonomy was based on the Manual <br /> , of Vascular Plants of Northeastern United States and Adjacent Camadq Ed 2(New York <br /> Botanical Garden, 1991). Indicator status of plant species was taken from the National List of <br /> � Plant Species That Occur in Wetlands: 1988Minnesota(LT.S. Fish&Wildlife Service, 1988). <br /> f <br /> � <br /> � III. �SUi.�'S <br /> � Review of Soils.NWI.DNR and FSA Information <br /> ' The National Wetland Inventory Map (1VW� (Excelsior Quadrangle, U.S. Fish& Wildlife <br /> � Service, 1989) showed one PEMC/PSS 1 C/PFO 1 C wetland complex on the southem half of the <br /> . site(Figure 3). <br /> !� The Soil Survey of Hennepin Counly,�nnesota(Sheet 44,USDA, 1974) showed the <br /> following soil types on the site: Cut and fill land, Glencoe silty clay loam, Hayden loam, Hayden <br /> � clay loam(eroded), and Peaty muck. Peaty muck and Glencoe are classified as hydric soils <br /> � indicative of wetland conditions when undrained(Figure 4). <br /> � <br /> ■ The DNR Protected Rlaters Map, Hennepin County(Sheet 1 of 4,Minnesota DNR, 1983) <br /> showed DNR Wetland 857W in the southwest portion of the site(Figure 5). <br /> � <br /> Wetland Determinations and Delineations <br /> � Potential wetlands were evaluated in grea.ter detail during field observations. All or portions of <br /> three wetland basins were identified and delineated on the subject site(Appendig A). <br /> � Corresponding data forms are included in Appendix B. The following description of the <br /> � wetlands and surrounding upland reflects field conditions at the time of the delineation; <br /> � temperatures were in the 50's, vegetation was senescing, and hydrology was assumed to be dryer <br /> � than normal following a summer with low precipitation. <br /> a <br /> � Wetland 1 was a Type 3 (PEMC/A/PFOlBd/PUBGx)basin in the southwest portion of the site. <br /> ' A ditch drains into the 'southwest corrier-of the wetland and continues east along the:southem <br /> a edge of the site. Dominant vegetation consisted of ca.ttail, reed canary grass, and common <br /> �� bucktliorn with lesser amounts of sedge, arrow-leaf tearthumb, stinging nettle, box elder, black <br /> � willow, and softstem bulrush. Soils observed below the wetland boundary were dark brown silt <br /> � loam to 18 inches, underlain by dark brown, faintly mottled silt loam to 24 inches depth. No <br /> primary indicators of wetland hydrology were observed. Secondary indicators included mapped <br /> � hydric soil, FAC-Neutral Test, and topographic position. •� . <br /> � Adjacent upland in wooded areas included boxelder, garlic mustard, eastern cottonwood, and <br /> ` common buckthorn, with smooth brome, Canada goldenrod, smooth sumac, and common <br /> burdock as dominants in open areas. Upland soils were brown loamy fine sand to 23 inches, <br /> � underlain by brown, distinctly mottled toamy fine sand to 26 inches depth with calcareous <br /> deposits throughout. <br /> � <br /> � <br /> � <br /> • 3 <br /> ' <br /> 1 <br />
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