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City of Arden Hills - Comprehensive Plan- DRAFT <br /> ordinances and policies in place that enhance District activities; however, those <br /> policies require monitoring to ensure that they are meeting City needs and effectively <br /> protecting the City's natural resources. <br /> In addition to lake protection, several high-priority natural areas, endangered and <br /> protected species, and historic sites have been identified as significant in the City. <br /> These significant resources are highly valuable and have features that may require <br /> special levels of protection. <br /> 10.2 Water Resources <br /> With seven lakes covering nearly 550 acres in Arden Hills, the lakes have <br /> always been a focal point in the community. Early settlers and development <br /> took advantage of the recreational and scenic qualities of the lakes, and they <br /> continue to be an attractive characteristic for residents and visitors. While most <br /> of the shoreland development too place prior to the adoption of development <br /> regulations, the City has experienced redevelopment pressure along the City's <br /> developable shorelines. <br /> The Minnesota Department of Natural Resources (DNR) requires communities <br /> to adopt shoreland ordinances, which typically regulate lot size, shoreline width, <br /> and setbacks for development along water bodies. Development regulations <br /> vary depending on the lake classification set by the DNR (from DNR website <br /> http://www.dnr.state_mn.ustwaters/watermgmt_section/shoreland/lake_shoreland_classificationshtmi): <br /> o Natural Environment Lakes and Streams (NE) — usually have less than <br /> 150 total acres, less than 60 acres per mile of shoreline, and less than <br /> three dwellings per mile of shoreline. They may have some winter kill of <br /> fish; may have shallow, swampy shoreline; and are less than 15 feet <br /> deep. <br /> o Recreational Development Lakes (RD)— usually have between 60 and <br /> 225 acres of water per mile of shoreline, between 3 and 25 dwellings per <br /> mile of shoreline, and are more than 15 feet deep. <br /> o General Development Lakes (GD)— usually have more than 225 acres of <br /> water per mile of shoreline and 25 dwellings per mile of shoreline, and <br /> are more than 15 feet deep. <br /> 10.2.1 Lakes and Water Bodies <br /> Lake Johanna <br /> Lake Johanna is the biggest lake in Arden Hills at 230 acres with a 4.25 <br /> square mile watershed. It is up to 41 feet deep and has an average depth <br /> DRAFT 57 <br /> 3/14/2008 <br />