Laserfiche WebLink
Soil Erodibility Factor "K" <br />This is a measure of the soil's susceptibility to erosion. It is dependent upon the soil's <br />resistance to detachment by rainfall and by its ability to absorb water through infiltration. <br />The soil erodibility factor "K", was determined from consultation of the NRCS Soil Survey <br />of San Miguel Area, Colorado. The disturbed area is comprised several different soil types, <br />and a composite of their erodibility factor was calculated for the Universal Soil Loss <br />Equation. Some of the soil areas and types in the NRCS survey are slightly different from <br />the soil types shown in the pre-mine survey shown on Map 2.04.9-1. We used the NRCS <br />survey for the Phase 2 release area since their soil descriptions have associated "K" values. <br />The reclaimed soil is primarily the same soil redistributed over the regraded areas after <br />mining. It is similar to the pre-mine soil and should also have the similar "K" factor. <br />SL-12 29MARl l.wpd 18