Wetland delineation-2010 - Laserfiche WebLink

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(Carex stricta), lake-bank sedge(Carex lacustris), cattail (Typha spp.), orange jewelweed (Impatiens capensis), with scattered willow shrubs (Salix sp.) and black ash (Fraxinus nigra). The adjacent upland area is dominated by common buckthorn (Rhamnus cathartica), ironwood(Ostrya virginiana), and basswood(Tilia americana). The wetland boundary was placed along the vegetation transition zone; there was an abrupt shift in vegetation between the reed canary grass and sedge (hydrophytic) and the common buckthorn and basswood (non-hydrophytic). A mild topographic break was observed along the wetland boundary; the boundary was placed at or near the foot of the slope. The wetland sample point met the A2 (Organic soil) hydric soil indicator, the upland soil did not meet a hydric soil indicator. Additionally, soil was saturated at the surface at the wetland sample point; the soil was dry at the upland sample point. Wetland 2 Wetland 2 is described as a Shallow Marsh(Type 3, PEMF)wetland. Wetland 2 (and the adjacent upland) had the same species composition as Wetland 1 and the delineation conditions were the same (as Wetland 1). No sample points were taken as the wetland boundary was obvious (abrupt edge of common buckthorn transitioning to reed canary grass with saturated soils). According to the City of Orono Wetland Management Classification Map, both Wetlands 1 and 2 have a "Preserve" rating requiring a 50' buffer setback from the wetland edge. At its closest point, it appears that the wetland edge is approximately 100' from any permanent structure(house and garage). Discussion Two wetland basins were delineated within the subject parcel. Both wetlands are described as Shallow Marsh (Type 3, PEMF) wetland dominated by reed canary grass, hummock sedge, lake-bank sedge, cattail, orange jewelweed, with scattered willow shrubs, and black ash. Wetland 1 was delineated by approximately 30 flags; Wetland 2 was delineated by approximately 10 flags. In order to be official the wetland delineation must be reviewed and approved by the Local Government Unit (LGLn and potentially other agencies (Local, State, Federal). AEC recommends that the wetland boundary be located by a Professional Land Surveyor or located by a survey grade GPS unit. Any work within or adjacent to a wetland will require Wetland Conservation Act(WCA)permits(and potentially other permits). Please consult with AEC if you plan on filling, draining, excavating wetlands within your project location. If you have any questions regarding this report or any questions about our services please feel free to contact Ben Carlson at any time(612-237-5996). Thank you, Ben Carlson Ben Carlson, WDC Ecologist/Owner Arrowhead Environmental Consulting 2