Dominant Hydrologic Group
Source: Natural Resources Conservation Service STATSGO Database
Map Description:
Dominant Hydrologic Group is a classification system that describes the drainage charatericstics of a soil.

Class A - High infiltration rates. Soils are deep well drained to excessively drained sands and gravels.

Class A/D - Drained/undrained hydrology class of soils that can be drained and are classified.

Class B - Moderate infiltration rates. Deep and moderately deep, moderately well and well drained soils with moderately coarse textures.

Class B/D - Drained/undrained hydrology class of soils that can be drained and are classified.

Class C - Slow infiltration rates. Soils with layers impeding downward movement of water, or soils with moderately fine or fine textures.

Class C/D - Drained/undrained hydrology class of soils that can be drained and classified.

Class D - Very slow infiltration rates. Soils are clayey, have a high water table, or are shallow to an impervious layer.

Cautions for this Product:
STATSGO data base maps are compiled by generalizing more detailed soil survey maps. These maps are generated primarly for regional, multistate, river basin, State, and multicounty resource planning, management and monitoring. This map is not intended for county or subcounty resource planning, management or monitoring.

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