20240529 Environmental Board Packet Combined

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Land Cover Pre-settlement land cover (Marschner) was wet prairie. Wet prairie is typically dominated by grasses, with some sedges present and less forbs than are found in mesic prairie. In the absence of fire, wet prairie will have higher concentrations of trees and shrubs. Open spaces not utilized for recreational purposes should be restored to this historic condition if possible to maximize habitat benefits and biodiversity on the site. Minnesota Land Cover Classification System (MLCCS) data indicates mostly sod on hydric soils and short grasses with 11-25%, 26-50%, and 51-75% impervious cover. There are some trees (aspens, boxelders, etc.) on the west, south, and southeast perimeters along the public ditch system. Soils Soil types according to the Natural Resources Conservation Service Soil Survey Geographic Database include: Rifle mucky peat, Markey muck, Lino loamy fine sand, Isanti fine sandy loam, and Zimmerman fine sand. The majority of the site is hydric soils. The EAW completed for the previous Promenade project identified areas of potential contamination that may need additional investigation or remediation should the project proceed. Existing hydric soils should be salvaged and utilized on site. These soil types will support the native vegetation that would have been present in the historical condition. Shoreland District The site does not fall within Shoreland District. Drinking Water Protection The site is not within a Drinking Water Supply Management Area (DWSMA). Rare, Unique, or Significant Resources A Natural Heritage Information System (NHIS) request must be submitted to the MN DNR to identify any rare, threatened, endangered, or special concern species that have been documented within one mile of this site. Any species identified as a result of this information request may indicate additional steps required to minimize or mitigate for any impacts. 5