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11-22-2004 Council Packet
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11-22-2004 Council Packet
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i <br />« <br />n <br />a <br />n <br />IN <br />■tt <br />a <br />« <br />pn^ <br />A <br />Wetland boundaries were marked at the site by blaze-orange “wetland boundary” flagging attached <br />to 4-foot wooden lath. Where vegetation was dense, to assist in locating the flagged lath (wetland <br />edge), a second piece of flagging was attached to a nearby tree or shrub branch. The wetland <br />boundary” is considered to be the topographically highest extent of the wetland basin: areas below <br />the staked boundary met the three required wetland criteria while areas above were lacking in one or <br />more of these criteria <br />lacking <br />Wetland classification followed methods described by Cowardin et al. (1979) and used in the NWI <br />(e.g. PEMB, PSSIC, etc.), completed by the U.S. Fish and Wildlife Service. The Circular 39 <br />classification (Shaw and Fredi.^e 1956) is also given (e.g. Type 1. Type 2...etc.). The indicator <br />status of plants, as described in Appendix B, was determined using the National List of Plant Spacias <br />That Occur in Wetlands — Region 3 (Sabine 1999). <br />RESULTS AND DISCUSSION <br />Background Information- (Office-Based Investigation) <br />The NWI map (Excelsior Quadrangle) illustrates one wetland basin and one lacustrine (lake) basin <br />on the subject parcel (Figure 2). The wetland is der.cribed as a palustrine (P) type wetland exhibiting <br />emergent vegetation (EM; and semipermanently flooded hydrologic regime (F), or a Type 3 PEMF <br />wetland on the NWI map. The lake is described as lacustrine (L) of the limnetic subsystem (1) <br />exhibiting an unconsolidated bottom (UB) and a permanently flooded hydrologic regime (H) or a <br />LIUBH lake on the NWI map. <br />The Soil Survey of Hennepin County. Figure 3, indicates three soil series present on the subject <br />property. These soil series are: Hayden loam, lake beaches, sandy, and marsh (see figure 3). Marsh <br />is classified as a hydric soil {SCS Hydric Soils of the United States), illustrated with blue <br />crosshatching on Figure 3. Soil series descriptions are given in Appendix C. Minnesota Department <br />of Natural Resources, StateProtected Waters Map, indicates a protected water body (133P) within <br />the subject parcel (Figure 4). <br />Site Visit <br />SER personnel examined the subject property for areas meeting jurisdictional wetland criteria during <br />the site visit. One basin meeting the jurisdictional criteria of l wetland, for which a boundary was Tf'' <br />determined, was delineated. Detailed soils, vegetation, and hydrology daia for the delineated <br />wetlands are provided in the data sheets of Appendix A.•j£'. <br />Basin 1 | <br />Upon completion of the wetland delineation it has been determined that Basin 1 is a Type 3, ***" <br />palustrine (P) type wetland exhibiting emergent vegetation (EM), and a semipermanently flooded <br />hydrologic regime (F), or a PEMF wetland, located within the eastern portion of the property (See j- <br />Figure 5). '■ <br />.1*' <br />*'nV <br />Vegetation at the wetland sample point was dominated by lake bank sedge {Carex lacustris, OBL) 1 <br />and box elder (i4cer negundo. FACW-). Non-dominant plant species at the wetland sample point ’ • <br />included wood nettle {Laportea canadensis. FACW), nanow-leaved cattail {Typha angustifolia. <br />OBL), water smartweed (Polygonum amphibium. OBL), and common buckthorn (Rhamnus
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