Skip Navigation

What's Included on the Hydric Soils Lists

National List

“Hydric Soils of the United States” is a compilation of all map units with either a major or minor component that is at least in part hydric. This could include components that are soil series, components that are classified at categories higher than the series level in Soil Taxonomy, and miscellaneous land types. Because the list includes both major and minor (small) percentages for map units, in some cases most of the map unit may not be hydric. Also, some components may have a range of characteristics that cross the hydric/non-hydric soil boundary and, therefore, only a portion of that component may in fact be hydric. The list is useful in identifying map units that may contain hydric soils.
 

Query by State

Using the “Query by State” link, you can query the Hydric Soils of the United States by state. This will provide a list of all map units that contain hydric soils for the selected state.
 

Query by Soil Survey Area

Using the “Query by Soil Survey Area” link, you can query the Hydric Soils of the United States by soil survey area. This will provide a list of all map units that contain hydric soils for the selected soil survey area.