Hydric classification is for the natural, undrained soil.
This report includes the most commonly used erosion factors and soil groups for map units and components of map units. Most information is for components of map units. HEL, Capability Subclass, and Prime Farmland information is for the whole map unit. K, Kf, Kr, and I factors are for the surface layer. Use K in the USLE equation, and do NOT count rock fragments as part of the mulch cover.