Agenda - Council - 01/26/2021 - Laserfiche WebLink

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Riverstone South EAW Draft — December 2020 b. Discuss the project Is compatibility with nearby land uses, zoning, and plans listed in Item 9a above, concentrating on implications for environmental effects. The project is compatible with surrounding land uses, which include residential, agricultural, and solar energy. The City of Ramsey 2040 Comprehensive Plan guides the site for Low Density Residential (LDR, generally 3-4 lots/net acre). The net density of the site, after factoring out open space, is 3.97 lots/acre. c. Identify measures incorporated into the proposed project to mitigate any potential incompatibility as discussed in Item 9b above. The project will require a Comprehensive Plan Amendment to guide the part of the site planned for 40-foot-wide lots for Medium Density Residential (MDR, average of 7 units/acre). The project area will also fall under a rezoning amendment to allow 40-foot-wide lots. The project is designed to balance smaller lots with public open space. The project will include about 17.46 acres of open space consisting of tree preservation, stormwater basins, parks, and buffers strips that will separate the project from adjacent residential and commercial areas. The proposed project is compatible with the proposed zoning, and the surrounding land uses. Land use conflicts are not anticipated. 10. Geology, Soils and Topography / Land Forms 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 Anoka County, Minnesota (Minnesota Geological Survey 2013) indicates the surficial geology of the area is characterized by terrace sand and gravel. The bedrock geology of the site falls in the Tunnel City Group and consists of fine-grained sandstone, siltstone, and shale. s dominantly quartz sandstone. The estimated depth to bedrock in the project area, based on the Geologic Atlas, generally ranges between 100 and 200 feet. As indicated under Item I1.a.ii, the depth to bedrock in nearby groundwater wells ranges from 95 to 180 feet and the depth to static groundwater ranges from 10 to 50 feet. Sinkholes and karst lands are not known to occur in western Anoka County where the project is located. Minnesota Karst Lands and Sinkhole Mapping prepared by Calvin Alexander and others (2006) does not shows karst lands or sinkholes in or near the project area.