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Wetland Classification, Ident/Delineation-2015
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Wetland Classification, Ident/Delineation-2015
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8/22/2023 3:13:22 PM
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0755 Tonkawa Rd
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0511723330003
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National Wetland Inventory (NWI) map, Minnesota Department of Natural Resources 2014 <br /> update (Figure 2), Web Soil Survey of Hennepin County map (Figure 3), Minnesota Public <br /> Waters Inventory map (Figure 4), and 2014 aerial photographs were reviewed prior to the site <br /> visit to identify areas that may be wetlands. Areas illustrating evidence of wetland conditions <br /> were examined in greater detail during the field survey. Vegetation, soils and hydrology were <br /> examined (as outlined in the 1987 Manual) and used to characterize wetland types and determine <br /> wetland boundaries. Sample transects were established in representative wetland-to-upland <br /> transition zones in order to characterize the vegetation, soils, and hydrology of the site. Transects <br /> consist of a representative upland sample point, a representative transition sample point and <br /> representative wetland sample point. Information obtained at the sample points can be found on <br /> the field data sheets located in the Technical Documents section. <br /> The wetland boundary was marked at the site by pink "Wetland Delineation" pin flags. The <br /> wetland boundary is considered to be the topographically highest extent of the wetland basin; <br /> areas below the staked boundary met the three required wetland criteria while areas above were <br /> lacking in one or more of these criteria. Wetlands were classified in accordance with methods <br /> described by Cowardin et al. (1979) and used in the NWI (e.g. PEMB, PSS IC, etc.), completed <br /> by the U.S. Fish and Wildlife Service. The Circular 39 and Eggers and Reed classification <br /> systems are also given. The indicator status of plants, as described in the Technical Documents <br /> section, was determined using the National List of Plant Species That Occur in Wetlands — <br /> Region 3 (Sabine 1999). <br /> RESULTS <br /> The National Wetland Inventory indicates the presence of one wetland (PUBF) within the survey <br /> area(Figure 2). <br /> The Web Soil Survey of Hennepin County (Figure 3) identifies two soil map units present on the <br /> subject property. The Lester-Kilkenny complex soils (6-12 percent slopes eroded, and 18-25 <br /> percent slopes) are both listed as predominantly non-hydric. Due to the presence of Lake <br /> Minnetonka adjacently west of the subject property, water is listed as a soil map unit onsite as <br /> well. The soil series descriptions are provided in the Technical Documents section. <br /> The Minnesota Department of Natural Resources, State Protected Waters Map (Public Water <br /> Inventory) indicates Lake Minnetonka-North Arm as slightly within the study area(Figure 4). <br /> Site Visit <br /> SER ecologists examined the subject property for areas meeting defined wetland criteria during the <br /> site visit. The area meeting the defined criteria of a wetland was flagged, and the boundary was <br /> determined and delineated. The approximate wetland boundary is outlined in yellow(Figure 5). <br /> Accumulated precipitation prior to the 10/15/15 sampling date shows field work was conducted <br /> under normal conditions, according the Minnesota Climatology Working Group. The months of <br /> September,August, and July received rainfall totals of 3.28", 2.82"and 7.94", respectively. <br /> Precipitation from April 1, 2015 to October 15, 2015 as recorded at the Chanhassen WSFO totaled <br /> 24.85"which is 1.61" above normal with average recorded temperatures to date of 62.0 degrees F for <br /> the same period. The average is just slightly above normal by 0.3 degrees F. <br /> Svoboda Ecological Resources 2 755 Tonkawa Road <br /> Project Number: 2015-034 Orono,MN <br />
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