6.2. - 6.4. SR 07-19-2004 - Laserfiche WebLink

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WCA Replacement Plan Application Trout Brook E~a~s June 28,2004 Page 4 Implementing an avoidance plan would require that extensive road construction would be required to provide access to the site, frequently with only single-sided lot frontages or no lot frontages. Site access is not available from any other directions other than from CSAH 13. By avoiding any fills, the impacts to the channels will be avoided. This represents the biggest source of proposed impacts. However, the City will lose an opportunity to restore the reed- canarygrass-filled wetlands along the edge of the Trout Creek wetlands, in order to preserve the channels. The other proposed impact for a road crossing in wetland 8 is also in an area heavily dominated by reed canarygrass. This plan promotes the preservation of the basic natural configuration of the wetlands, and concentrates the impacts within the disturbed channel areas that receive stormwater flow under County State Aid Highway 13. Avoidance would miss the opportunity to vegetatively restore large areas of Basin 1, which has desirable sedge meadows that may be affected by invasion of reed canarygrass within the same wetland complex. Alternative Sites Alternative sites for the proposed project were not explored in depth since this site will accomplish the project purpose with minimal wetland impact. Further, this site is guided for the proposed use and if this residential development is not implemented, another one is likely to be in the near future possibly resulting in greater wetland impacts. Rectification of Impact No temporary wetland impacts are proposed which could be rectified after project completion. Reduction or Elimination of Impacts Over Time Standard best management practices will be used which will reduce the impact to the wetlands through erosion control measures. Replacement of Unavoidable Impacts The unavoidable wetland impact of 83,703 square feet will be replaced through the implementation of the compensatory mitigation plan outlined below. Compensatory Miti.qation Plan The Wetland Conservation Act requires replacement of drained or filled wetlands at a minimum ratio of 2:1 for the 83,703 square feet of proposed impacts. New Wetland Credit (NWC) of 84,000 (1.93 acres) is proposed for the site. A surplus of 297 square feet of NWC will not be banked. Three NWC areas are proposed for the west and north sides of Wetland 1 in the east-central portion of the property of 43,367 sq. ft., 28,540 sq. ft., 8910 sq.ft, and 3183 sq. ft. (Figure 3). All of these NWC areas are proposed as Type 2 fresh meadows.