20240424 Environmental Board Packet Combined

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ANALYSIS General Site Characteristics The proposed project includes dividing the 1.37 acres parcel into two single family residential lots. The total impervious area will be 0.115 acres (11.1%), total pervious area 1.22 acres (88.9%). Land Cover Pre-settlement land cover (Marschner) was oak openings and barrens, an oak-dominated transitional area between deciduous forest and prairie. Current land cover (Minnesota Land Cover Classification System) on the site includes 26-50% impervious cover with coniferous trees. The tree survey identified a mix of red pine, cedar, ash, elm, and oaks. Rare, Unique,or Significant Resources Blanding's turtle (Emydoidea blandingii) has been observed within a one-mile radius of the site. Highways, roads, and other development separate the project site from suitable habitat for this species. Any sightings of this species, while unlikely, should be reported to City staff so that the turtles can be safely relocated. Project-related impacts to this species are unlikely, and additional protection measures are not required. Forster's tern (Sterna forsteri) has been identified within a mile of the project site. This species utilizes open water and marsh for feeding and breeding habitat. The project is not expected to impact this species. Soils The Natural Resource Conservation Service Web Soil Survey notes the following soil types on the project site: Soderville fine sand on 0-3 % slopes (98.8%). Also a hydrologic group A soil that is moderately well drained and not hydric. Permeability is rapid to moderately rapid with negligible runoff. Zimmerman fine sand on 2-6 %slopes (1.2%). This is a hydrologic group A soil that is excessively drained, not hydric,with rapid permeability and negligible to low surface runoff. Stormwater Management Stormwater management will be reviewed by the City Engineer. 2