20240925 Environmental Board Packet Combined

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7 Environmental Review Considerations An Environmental Assessment Worksheet (EAW) will be required. The mixed-use threshold computation of commercial and attached residential units is 0.94. While less than one (1), staff recommends preparation of a discretionary EAW as allowed by Mn Admin Rule 4410.1000 Subp. 3 due to the development’s proximity to the lakes and wetlands. Drinking Water Protection The site is not within the Drinking Water Supply Management Area (DWSMA). The Minnesota Well Index indicate the location of a well on the property. The well was drilled in 1985 and likely associated with the homestead (1566 Ash Street) that was previously located on the northern middle of the site. The home was demolished in 2001. Proof should be provided of the well sealing and septic system removal if a septic system existed. RECOMMENDATIONS Staff has the following recommendations for consideration by the board: 1. A new rare plant and animal survey must be completed for the project area. Finds should be used to minimize disturbance and influence the overall project design. Opportunities to provide new or improved habitat should be incorporated into the project. 2. The project should include expanded buffers adjacent to Wetland 1. A restoration and management plan should be developed for upland buffer areas consistent with pre-settlement vegetation. 3. Building setbacks to Wilkinson Lake as proposed should be maintained. 4. Building height should be limited to a maximum of 40’. 5. The sandy, well drained areas offer the potential for stormwater infiltration. Infiltrations BMPs should be incorporated provided groundwater separation requirements can be met. 6. A stormwater treatment train that filters and treats stormwater runoff as it flows through the site should be developed. Any opportunities to incorporate natural treatment systems into the project should be encouraged.