01-06-2014 Council Packet Special Meeting

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Item #01- Special Council Meeting - 01106114 File #13-3638 & 13-3639 [Total Pages 99] eastern half of the project are within Orono's Shoreland Overlay District, specifically the Lakeshore Setback category. A wetland area along the southern border of the project is within a 100 year floodplain as defined by FEMA FIRM 27053CO284E. No wild or scenic rivers, critical areas or agricultural preserves are found in the project area. b. Discuss the project's compatibility with nearby land uses, zoning, and plans listed in Iters 9a above, concentrating on implications far environmental effects. The Orono Community Management Plan anticipates that residential development will be the predominant form of development within the city. Residential development is compatible with adjacent land use and current zoning. A modification to the Comprehensive Plan has been initiated with the Planning Commission and City Council to make the development compatible with the Comprehensive Plan. Large lot residential properties such as this project likely will be comparable to the golf course in terms of environmental effects. c. Identify measures incorporated into the proposedproject to mitigate any potential incompatibility as discussed in Item 9b above. The proposed project is compatible with adjacent land use. 10. Geology, soils and topography/land forms: a. Geology Describe the geology underlying the project area and identify and map any susceptible geologic features such as sinkholes, shallow limestone formations, unconfined/shallow aquifers, or karst conditions. Discuss any limitations of these features for the project and any effects the project could have on these features. Identify any project designs or mitigation measures to address effects to geologic features. The Geologic Atlas of Hennepin County indicates that the bedrock underlying the Project is probably dolomitic siltstone of the St. Lawrence :Formation of the Upper Cambrian Level. Surficial geology for much of the Project area is likely Clayey Till (loam to clay loam) according to the Geologic Atlas for Hennepin County. The wetland/floodplain area in the south of the project has likely filled with postglacial organic matter. Karst features are not believed to be on site. b. Soils and topography -Describe the soils on the site, givingNRCS (SCS) classifications and descriptions, including limitations of soils. Describe topography, any special site conditions relating to erosion potential, soil stability or other soils limitations, such as steep slopes, highly permeable soils, A soils investigation performed in October 2013 revealed that much of the Project area contains "Lean Clays" for the first 10 or so feet below ground level. As the depth increased, the "Lean Clays" tend to get supplanted by "Sandy Lean Clays". The NRCS branch of the USDA indicates nearly half of the project site is predominantly soil from the Lester -Kilkenny complex. These soils are mostly loams or clay loams that occur on slopes of 6-25%, and experience some erosion. Generally these soils are expected to drain moderately well or better. The second largest complex is the Hamel overwash — Hamel complex, which occupies nearly 17.9% of the project area. Hamel complex soils are principally loams or clay loams and have somewhat poor to poor drainage abilities. Generally these soils appear in lowlands. The third most prominent soil type is an Angus -Kilkenny complex that constitutes around 14.4% of the project area. Angus -Kilkenny soils are mostly in upland areas and consist of loam and clay loam. They are projected to drain well to moderately well. ]Figure XXXX shows the surficial soil types. Given the loamy characteristics of soil, wind and slope erosion should not be a concern, provided erosion control and sediment control best management practices are followed. page 5