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These surface treatments are designed to reduce overland flow of water and shall be supplemented by techniques <br />suggested by Clyde, et. al., (1978) if the need arises. The techniques recommended by these researchers include the <br />use of barriers, check dams, erosion stops, matting and roughened surfaces. These erosion control measures can be <br />installed with various kinds of straw bales, nettings and mattings to effectively reduce overland flow. If gullies <br />deeper than 9 inches should form, the gullies will be blocked with one of the above - mentioned treatments and given <br />the opportunity to stabilize naturally, through the growth of vegetation. <br />Since the intent of Rule 4.14.6 is to allow stabilization through means other than regrading, every alternative means <br />will be employed prior to using machinery to alleviate an erosion problem. If such action becomes necessary, one <br />of the small rubber -tired farm tractors utilized in reclamation will be allowed on the site to re -grade the gully. Once <br />a site is regraded, it will immediately be planted to the appropriate perennial seed mixture. <br />(d) _A plan for removal from storage and redistribution of topsoil. subsoil. and other material to meet the <br />requirements of 4.06. <br />RESPONSE: <br />All affected Iaiid within the proposed permit area was disturbed before topsoil salvage, storage and replacement <br />operations were required by the State or Federal Regulatory programs. <br />The topsoil salvaged from the area in which Colorado Yampa Coal Company constructed its Mine 3 <br />shop /warehouse building was transferred to Twentymile Coal Company. This topsoil will be transported to the <br />Fish Creek Tipple to supplement some of the reclamation activities for this site. The topsoil will be spread to a <br />depth of 6 inches over 15 '/ of the 22 acres at this location. An admixture of spoils and soil materials will be <br />substituted for topsoil on the remaining 6 / acres. <br />Research conducted in the vicinity of the Fish Creek Tipple has documented the suitability of soil mixed with <br />overburden materials as a plant growth medium. Parkin, Crofts and Berg (1980) reported that abandoned coal mine <br />spoils at the nearby Osage and Seneca I Mines were successfully revegetated by aerial seeding partially leveled <br />spoil ridges. Revegetated sites adjacent to the proposed permit area that received little or no topsoil were released <br />from bond, as discussed under Rule 2.05.4 (2) (e). <br />Considering the less sophisticated reclamation techniques used to successfully reclaim the Osage, Seneca and <br />Energy Mine No. 3 tracts, Twentymile Coal Company is confident that the land rehabilitation practices proposed in <br />this permit application are capable of establishing a vegetative cover compatible with the post - mining, land uses. <br />8/12/98 <br />