02-22-2024 PRF Packet - Laserfiche WebLink

Home Browse Search

WETLAND DELINEATION REPORT Silver View Pond Restoration Results October 26, 2023 3.3.8 Wetland 8 Wetland 8 (W08) is made up of a hardwood swamp and shallow open water communities that is a part of a wetland complex which is central to all five sections of the Project (Appendix A, Figure 1). The sample point for W08 was taken within the hardwood swamp community. Dominant plant species identified at sample points completed within W08 consist of common buckthorn, cottonwood,and American elm.Other common species identified in the wetland are listed on the data forms included in Appendix C. The dominant species within the wetland are comprised mostly of hydrophytic vegetation (OBL, FACW, and/or FAC) and meet the hydrophytic vegetation criterion. The wetland appears to have a seasonally inundated/saturated hydroperiod within the center. No Primary Hydrology Indicators were observed. Secondary indicators of wetland hydrology observed included D2 and D5. Therefore,the wetland hydrology criterion was met. Soils within the wetland are mapped by the NRCS as Udorthents, wet substratum, Urban land-Lino complex, and Seelyeville muck (Appendix A, Figure 2). The soils observed at the sample points were generally consistent with the Lino series characteristics. Field indicators of hydric soil identified at sample point W08-1w consisted of NRCS field Indicator All-Depleted Below Dark Surface. Therefore, the hydric soil criterion was satisfied. The wetland boundary was determined based on distinct differences in vegetation, hydrology, soils, and topography consisting of the following: 1)Transition from a hardwood swamp and shallow open water wetland community dominated by cottonwood and American elm to a mesic forest upland community dominated by buckthorn; 2)Transition from an area exhibiting wetland hydrology indicators within the wetland to a lack of wetland hydrology indicators within the adjacent upland; and 3)Transition from soils exhibiting hydric soil indicators to soils lacking indicators of hydric soil conditions. The transition from wetland to upland characteristics generally correlated with a well-defined topographic break. 3.4 UPLANDS Upland within the Project primarily consisted of a paved walking trail and maintained lawn with woody vegetation growing along the edge of the wetland. Dominant vegetation in this area was comprised of ground ivy, Kentucky bluegrass, quack grass, beggar's lice, boxelder, cottonwood, and buckthorn. The upland communities across the project were prominently defined by the change in topography. In general, upland areas were determined to be non-wetland based on the lack of wetland hydrology, hydric soils, hydrophytic vegetation, and a location in areas higher in the landscape that lacked suitable geomorphic position for wetland conditions to exist. 3.5 OTHER ENVIRONMENTAL CONSIDERATIONS This report is limited to the identification of state and/or federally regulated wetlands within the Study Area. However,there may be other regulated features within the Study Area, including,but not limited to, historical or archeological features, endangered or threatened species, navigable waters, shoreland zones, and/or floodplains,etc. Federal,state,and local units of government and regional planning organizations may have regulatory authority to control or restrict land uses within or in close proximity to these features. 9