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<br />presence of rare species onsite is largely a function annual soil <br />disturbance/farming practices. Once farming practices on the site cease <br />(with or without development), rare species occurrence on the site is <br />predicted to drop. Per Kjolhaug Environme ntal Services. <br /> <br /> <br />• Geotechnical <br />A geotechnical evaluation was completed in response to the concerns over draining the <br />adjacent Pin Oak wetland and impacts to adjacent wells. <br /> <br />1. The introductory paragraph and overall report shall provide recommendations for not <br />only “dewatering” but also reference the” large borrow areas (Ponds 200 & 300) <br />adjacent to existing wetlands”. <br />To be provided with updated Ge o report. <br />2. The applicant shall provide a map of identifyin g the location and quantity of <br />piezometers and another map of auger probes. <br />To be provided with updated Ge o report. <br />3. The applicant shall provide an evaluation of subsurface geologic feature mapping that <br />can suspend water, or drain with the ground water flow in the absence of geologic <br />“lens”. The Minnesota Ge ologic surve y would be a good reference and soil <br />augerings, mentioned above, to verify lens or no lens. <br />To be provided with updated Ge o report. <br />4. The applicant shall provide a document specifically outline the plan to address well <br />impacts and a plan to address wetland impacts that may occur as a result of this <br />development. The plan may include items sugge sted in geotechnical memo, clay <br />berms and clay lining of the borrow areas. <br />To be provided with updated Ge o report. <br />5. We recommend that the City, through the Development Agreement, require securities <br />for mitigation costs associated with protecting the adjacent Pin Oak we tland and <br />adjacent wells. <br />Noted. <br />Wetlands are being reviewed by the Environmental Coordinator. <br />Noted. <br />• Floodplain <br />The floodplain within the Nature’s Refuge development is a Zone A. The 2015 DFIRM <br />base flood elevation (BFE) from RCWD modeling identifies the BE F elevations of 904.5 <br />(easterly floodplain) and 904.2 (westerly floodplain). The applicant is proposing to fill 37 <br />cubic yards of floodplain and mitigat e onsite. There are 29,533 cubic yards of floodplain <br />mitigation proposed on site. <br /> <br />1. Floodplain impacts are proposed on site due to stormwater ponding and structures, <br />and Lots 4-5 Block 3. A LOMR will be required. The applicant shall provide a <br />copy of the CLOMR application to the City. The LOMR is to be in place prior to <br />final plat.