Agenda - Environmental Policy Board - 01/25/2021

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Riverstone SouthEAWDraft December 2020 At a minimum attach each of the following to the EAW: County map showing the general location of the project; U.S. Geological Survey 7.5 minute, 1:24,000 scale map indicating project boundaries (photocopy acceptable); and Site plans showing all significant project and natural features. Pre-construction site plan and post- construction site plan. 6.Project Description a.Provide the brief project summary to be published in the EQB Monitor, (approximately 50 words). Riverstone Southisproposed on 78.63 acres of landin southwestern Anoka County.Theproject will include165detached single-family homes, 78 detached townhomes, and parkland with tree preservation. Site development will include installation of municipal sewer and water, mass grading, and stormwater management practices. b.Give a complete description of the proposed project and related new construction, including infrastructure needs. If the project is an expansion include a description of the existing facility. Emphasize: 1) construction, operation methods and features that will cause physical manipulation of the environment or will produce wastes, 2) modifications to existing equipment or industrial processes, 3) significant demolition, removal or remodeling of existing structures, and 4) timing and duration of construction activities. Riverstone Southisproposed on78.63acres of land in the southwestern part of the City of Ramsey, AnokaCounty, Minnesota (Figure 1). The project area is about 70% cropland and 30% woodland. Thesite is located in the West ½ of Section29 and part of the E ½ of Section 30, Township 32 North, Range 25 West(Figure 2). The project area is bordered on the south and west by residential lotsandBowers Drive NW, on north by cropland, and on the east bycropland and aConnexus Energy solar farm. The Mississippi River is located 650 to 780 feet southwestof the site and the U.S. Highway 10 is located 530 feet north of the site. The croplandimmediately north of the site is planned for extension of Riverdale Drive and commercial development. The project will include 165detached single-family homes, 78 detached townhomes, installation of municipal sewer and water, mass grading, and stormwater management practices. The proposed Site Plan is shown in Figure 3. The Site Plan and Grading Plan are shown in Appendix A.The project will convert about 54.14acres of cropland and 16.17acres of woodlandto streets, homes, lawns, landscaping, and stormwater features.The balance of the site will include about 7.73 acres of tree preservation and about 0.59 acre of grassland preservation. The projectwill include about 17.46 acres of open space consisting of tree preservation, stormwater features, parks, and buffers. The project area does not includewetlands, but 42% of the site (33.30acres) falls within the Mississippi River Corridor Critical Area(Figure 4). The site includes sandy soils,22feet of topographic relief, and mostly flat to gradual slopes. The steepest slopes on the site, at 12-14%, cover only about an acre in the northwestern part of the site (Figure 5). This sloping area will be graded and recontoured during project construction.The development area will be mass graded to install utilities, streets, residential building pads, and stormwater basins.A 30-foot landscape buffer will be provided along the northern edge of the site 2