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02-17-2004 Planning Packet
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02-17-2004 Planning Packet
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Botanical Garden, 1991). Indicator status of plant species was taken from the National List of <br />Plant Species That Occur in Wetlands: 1988 Minnesota (U.S. Fish 8t WMlife Service, 1988). <br />nL RESULTS <br />Review of Sntla. NWL —d DMt lafowrion <br />The National Wetland Inventory Map (NWI) (U.S. Fish & Wildlife Service. 1989, Excelsior <br />Quadrangle), shows one PUBF wetland on the property (Figare 2). <br />The SoO Survey of Hennepin County^ Minnesota (USDA, 1974) shows the following soU types <br />on the she: Glencoe sihy clay loam (Gc), Duodas silt loam (Du), Hayden clay loam (HcD2), and <br />Nessel loam (NeB) (Flfure 3). Glencoe and Dundas are hydric soils characteristic of wetlands <br />in the absence of drainage. <br />The DNR Protected Waters Map, Hennepin County (Mixmesou DNR, 1981). docs not show <br />any DNR Protected Waters, Wetlands, or Waterways on the property. Lydiard Lake (DNR <br />Protected Water 1S9P) is shown approximate^ 1000 ftet west of the property (Figure 4). <br />Wetland PetermlnnHoni and litf !/Cr <br />Potential wetlands were evaluated in greater detafl during held observations. One wetland was ^ <br />identifred and delineated on the site (Figure 5). Corresponding data forms are included in i^r’ <br />Appendix A. The foUowing description of the wetlandandstirrounding upland reflects field <br />condhions observed at the time of the delineation, which was typical of early winter, with <br />dormant vegetafion and no snow cover. A thin layer of frost in the soil sur&e did not prevent <br />examination of the sods. At the time ofthe delineation recent precipitation k\eb had been <br />slightly below normal and temperatures were above nonnaL Precipitation for the year was above > <br />noimal because of an abnormally wet firing. <br />Wetland I was a Type 5 (PUBGx) excavated basin located in the western half of the property. t <br />The extreme eastern edge of the wetland occurred on the adjacent property. Based on a review <br />of historical aerial photographs, the w etland appeared to have been excavated to create open a* <br />water some time between 1953 and 1957, with the spoil material sidecast on the adjacent uplands <br />surrounding the wetland. Most of the wetland consisted of open water, yhich was seasotuibly <br />low, exposing approximately 2040 feet of pond bottom around the edges of the wetland. <br />Scattered reed carary grass, green bulrush, and giant ragweed ..as observed around the edges of > <br />the basin, and duckweed was on the surfiKcoftbe pond and exposed mud. Soils in the wetland ^ <br />consisted of 18 inches of silt loam sediment which had low chroma matrix colors and distinct ^ <br />iron coDcentrations over a buried black silt loam A-borizon, which no iron concentrations. <br />Water was observed whhin 6 inches oftbe suifrice in soQ pits just bdow the delineated <br />boundary. <br />The adjacent uplands primarily consisted of mowed Kentucky bluegiass lawn, with cotmron <br />buckthorn and green ash trees to the north and southwest. Upland soils just above the wetland <br />boundary consisted of 8 inches of black sih loam which had no iron concentrations over sandy
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