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greater than 12 inches does not disrupt the approved postmining land use and would not preclude the <br />reestablishment of vegetative cover. Often, active gully formation is of limited temporal and spatial extent and <br />once vegetative becomes well established, the erosion is checked. Furthermore, as is known, the repau• of rills and <br />gullies may disrupt more of the surrounding area than the actual area occupied by the gully. This situation is <br />acknowledged by the Division in Rule 4.14.6(1) and in the rill and gully policy. <br />Colorado Yampa Coal company's plan to reclaim excessive rills and gullies which aze not permanent drainageways <br />will include one or a combination of several techniques. One method used consists of backfilling, seeding, and then <br />contour furrow inscription into the backfilled gully. Other methods for gully stabilization include the use of <br />barriers, check dams, and erosion stops. Treatments such as these can be accomplished with the use of straw bales, <br />rock, wood, nettings, or mattings. These or other devices will be installed within the actual rill or gully channel and <br />will serve to both dissipate the water flow and to allow sedimentation to occur upslope of the barriers. Ultimately, <br />vegetation will establish in the rills or gullies and will assist in the soil stabilization. <br />Another method to decrease the water flow and to dissipate its erosive energy is to provide a roughened surface at <br />the bottom of the gully channels. This can be accomplished by placing matting, rocks, tree and shrub debris, or <br />other material in channel bottoms. <br /> <br />• <br />APPROVED OCT o '1. 1998 <br />MR 98-88 28-5 Q i ~ 9/4/98 <br />