Soils Drainage Class

<div style='text-align:Left;'><div><div><p style='margin:0 0 0 0;'><span>Drainage class (natural)" refers to the frequency and duration of wet periods </span></p><p style='margin:0 0 0 0;'><span><span>under conditions similar to those under which the soil formed. Alterations of </span></span></p><p style='margin:0 0 0 0;'><span><span>the water regime by human activities, either through drainage or irrigation, </span></span></p><p style='margin:0 0 0 0;'><span><span>are not a consideration unless they have significantly changed the morphology </span></span></p><p style='margin:0 0 0 0;'><span><span>of the soil. Seven classes of natural soil drainage are recognized-excessively </span></span></p><p style='margin:0 0 0 0;'><span><span>drained, somewhat excessively drained, well drained, moderately well drained, </span></span></p><p style='margin:0 0 0 0;'><span><span>somewhat poorly drained, poorly drained, and very poorly drained. These classes </span></span></p><p style='margin:0 0 0 0;'><span>are defined in the "Soil Survey Manual.</span></p><p style='margin:0 0 0 0;'><span /></p><p style='margin:0 0 0 0;'><span><span>The State of Connecticut defines inland wetlands based on soils. </span></span></p><p style='margin:0 0 0 0;'><span><span>The Connecticut Inland Wetlands and Watercourses Act defines wetland </span></span></p><p style='margin:0 0 0 0;'><span><span>soils to include any of the soil types designated as poorly drained, </span></span></p><p style='margin:0 0 0 0;'><span><span>very poorly drained, alluvial, or floodplain by the National Cooperative Soil Survey, </span></span></p><p style='margin:0 0 0 0;'><span><span>as may be periodically amended, of the Natural Resources Conservation Service </span></span></p><p style='margin:0 0 0 0;'><span>of the United States Department of Agriculture.</span></p><p style='margin:0 0 0 0;'><span /></p><p style='margin:0 0 0 0;'><span><span>Map units dominated by Connecticut inland wetland soils may have inclusions </span></span></p><p style='margin:0 0 0 0;'><span>of non-wetland soils, and non-wetland map units may have inclusions of </span></p><p style='margin:0 0 0 0;'><span><span>Connecticut inland wetland soils. On site investigation is necessary to </span></span></p><p style='margin:0 0 0 0;'><span>determine the presence or absence of wetland soils in a particular area.</span></p><p style='margin:0 0 0 0;'><span /></p><p style='margin:0 0 0 0;'><span><span>This data set is a digital soil survey and generally is the most</span></span></p><p style='margin:0 0 0 0;'><span><span>detailed level of soil geographic data developed by the National</span></span></p><p style='margin:0 0 0 0;'><span><span>Cooperative Soil Survey. The information was prepared by digitizing</span></span></p><p style='margin:0 0 0 0;'><span><span>maps, by compiling information onto a planimetric correct base</span></span></p><p style='margin:0 0 0 0;'><span><span>and digitizing, or by revising digitized maps using remotely</span></span></p><p style='margin:0 0 0 0;'><span>sensed and other information.</span></p><p style='margin:0 0 0 0;'><span /></p><p style='margin:0 0 0 0;'><span><span>This data set consists of georeferenced digital map data and</span></span></p><p style='margin:0 0 0 0;'><span><span>computerized attribute data. The map data are in a soil survey area</span></span></p><p style='margin:0 0 0 0;'><span><span>extent format and include a detailed, field verified inventory</span></span></p><p style='margin:0 0 0 0;'><span><span>of soils and miscellaneous areas that normally occur in a repeatable</span></span></p><p style='margin:0 0 0 0;'><span><span>pattern on the landscape and that can be cartographically shown at</span></span></p><p style='margin:0 0 0 0;'><span><span>the scale mapped. The soil map units are linked to attributes in the</span></span></p><p style='margin:0 0 0 0;'><span><span>National Soil Information System relational database, which gives</span></span></p><p style='margin:0 0 0 0;'><span>the proportionate extent of the component soils and their properties.</span></p></div></div></div>