REV98804 - Laserfiche WebLink

Home Browse Search

•.. Sanborn Creek Mine, TR-3? Page 2 Appendix H is a compilation of soil surveys conducted at the mine. There is little mention of the development for the Elk Creek surface facilities. Although, many fewer samples were taken from the proposed disturbed area, the development of the Elk Creek facilities needs to be discussed in Appendix H with a summary of the soils. The sections titled Site Specific Soils Mapping and Characterization, and Soils Surveys need to include this area. The Soils Resource Information on revised page 2.04-57 also needs to include a summary of the soils in the Elk Creek surface facilities area. During my review, I noticed several references in the existing permit to Appendix H, the Revegetation Plan. This new Appendix H, Soil Resource Information, will create confusion. Topsoil Removal and Redistribution -Rule 2.05.3(4)(e). 2.05.4(e) and 4.06 As stated in the DMG November 16, 1998 completeness letter, a discussion of [he projected volumes of topsoil to be removed, salvaged and to be replaced is necessary to determine a topsoil mass balance. Please provide this information. The topsoil stockpile location should also be addressed. Presumably, topsoil will be stockpiled in the northern Elk Creek pile. OMI feels the site is stable as explained in the August, 1999 cover letter. JOE PLEASE NOTE: I have no reason to believe the topsoil stockpile location is not stable. /f you fee[ otherwise, please address here. Revised page 2.05-37e (October, 1998) says that all Elk Creek mine facilities "and disturbance areas which will not be retained will be removed, reclaimed, stabilized and restored as undeveloped lands consistent with postmining land uses of wildlife habitat and dispersed recreation". There is no mention of topsoiling. Please include topsoil distribution in this paragraph. The discussion on page 2.05- 37g, Soil Material Replacement, is very general. As stated above, a topsoil balance is needed and the specifics of soil replacetnent should be addressed in this section. Rule ?.04.10 - Ve>?etation It is unclear if the Elk Creek surface facilities have been included in previous vegetation mapping, Map E8-3391 and baseline data collection. The extent of the proposed disturbance appears to go beyond the sample boundaries shown on the map. Has baseline vegetation data been collected for the proposed Elk Creek surface facilities area? Potential disturbance to threatened and endangered species needs to be addressed.