Agenda - Council - 12/14/2021 - Laserfiche WebLink

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Trott Brook North Property,Ramsey Wetland Delineation Report Results Six areas showing a wet signature on the 10-25-2020 Maxar Technologies photo (most recent "wet"photo) were included in the review. The locations of Area A through Area F are shown on Figure 7. Photographs for each year of review and the Wetland Hydrology Recording from Aerial Imagery - Recording Form are included in Appendix D. Area A required field verification based on the recording form decision matrix. In the field, Area A was a slight depression planted with corn. Other than geomorphic position, no other hydrology indicators were observed. Data sheets for a sample point taken in Area A (SP-A) is included in Appendix B. Area A was determined to be non-wetland based on the lack of one primary or two secondary indicators of wetland hydrology and a dominance of upland plant species. Areas B and C did not require field verification and are not wetland based on the recording form decision matrix. Data sheets for a sample point taken in Areas B and C are included in Appendix B. SP-B and SP-C were similar to Area A. These areas were slight depressions planted with corn; however, no hydrology signatures were observed in these areas on normal climatic photos and these areas lacked hydric soil indictors. Areas D,E, and F did not require field verification and are wetland based on the recording form decision matrix. These areas correspond to Wetlands 2, 1, and 3. 4.4 Other Areas The NWI map showed Area G(Figure 2) as a horseshoe shaped PEM 1 A wetland in the south- central part of the site (Figure 3). In the field, the NWI mapped wetland was the sloping outer edge of a previously mined area that was higher than the area within the horseshoe shape which was flat. Species within the mined area included pineapple weed, crabgrass, common mullein, Siberian elm saplings, spotted knapweed and yarrow. A large are mapped with hydric soil (Blomford) was shown to the east of Wetland 4. In the field, this area was a pine plantation that lacked a hydrophytic plant community. An ephemeral gully was observed at the southern edge of Wetland 7b (Figure 2). In the field this feature was a narrow gully, on sloping topography with a parabolic bottom that was partially vegetated except where eroding. No other depressional areas with hydrophytic vegetation or wetland hydrology were observed on the site. No other areas were shown as hydric soil on the soil survey or as wetland on the NWI map. 8