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I <br />I <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Ramsey <br />Page 2 <br /> <br />is 60 to 150 feet deep in the area and it supplies groundwater to wells as does the <br />underlying Franconia Formation. The glacial maferial overlying the bedrock is charac- <br />terized by an upper layer of sand or gravel 30 to 80 feet thick. Below this coarse <br />material there is a layer of c]ay or clay/sand/§ravel mixture. The lower portion <br />of the g. lacial material may contain a single clayey unit, or multiple clayey units <br />separated by sand or gravel. Overall, the aquifers are separated from the surface <br />by one or more clayey units. Therefore although soil conditions are sandy, subsur- <br />face conditions would provide some natural safety over that designed into a facility. <br /> <br />Proximity to natural areas, parks, historic sites: <br /> <br />The Minnesota Historical Society notes.that there are no sites in the area that are <br />on the National Register but that a site which may be eligible for inclusion on the <br />National Register has been inventoried in city or county surveys. Ramsey has de- <br />veloped a Mississippi River Critical Area Plan for developments along the River. <br /> <br /> <br />