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a2 hard was not an important factor in predicting soil lass. However, since slope and slope-length will *+~;n oaalstant, the rn~tt best ~QTM+~ for monitoring ~i~*+t control effectiveness is Dover along with observations of actual soil lass due to rill aryl gully formation. r In order to restrict erosion to levels that do not exceed soil loss in ' ~~;~,*~ areas, vegetation cover needs to be ma;ntw;ru~, ZYIe question then beocmes, what is the minim„m Pmt cover deeded tO keep erosion Within acceptable limits? ale worst case scenario for the Bang Mine that might exist is a 12 per~wsrt slope with 300 feet of slope-length. Under these ocmditicns vegetation Dover (live plant Dover) would have to be ma;ntwinPrl at an average of 49 percent to keep erosion to levels equivalent to soil lass cn iu~disGrrbed sites of similar slope and slope-length. A 200 foot slope-length at 12 peropsst slope will require 34 percent plant Dover while a 100 foot slope-length at 12 pervert will require no plant cover to keep erosion within that of an undistlrrbed site with the same physical features. However, it is impractical and undesirable to maintain no vegetation Dover because with time the K value of the soil would change as the physical properties of the soil deteriorated. ']his would then result in an increase in erosion beyorrl that of the „n~i;Gr,,,ipc7. Cantirwencv Plan conditions may arise dtsi~ the hording period where bare areas develop or r where ri11 formati.an ooarxs. Bare areas that axe large erau~i to be susceptible to sheet erosion will be xpseedded and mulched with crimped straw. In areas where rill initiation may occur, that is removal of soil frmn small, well defined rY,anrolc~ will be ODrYeG'ted by eha11 OW fULiCW171g Orr the COrrtour or some Other form of licit tillage to eliminate the rills. If signs of gully erosion are i~p*+}ified (esnsion oooarrirq when water ao~Llates in narrow c3~armels over