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Soil texture is generally a channery clay loam surface underlain by heavy clay loams and clays. Revegetation will be limited by the heavy textured subsoils and lack of topsoil due to previous mining activities. Samples collected by the applicant indicate low electrical conductivity (EC) values and low sodium adsorption ratios (SAR's) for the A horizon soils which the applicant proposes to salvage. Available topsoil will be salvaged from the areas to be disturbed (approximately 9 acres in the refuse disposal area, 1.2 acres in the area of the proposed sediment pond, and 1.3 acres in the proposed Red Canyon No. 2 portal and yard area) and immediately distributed on regraded portions of the underground development waste disposal site when possible. When areas of regraded overburden at the waste disposal site are not available (i.e., regraded) for topsoiling, the topsoil will be stockpiled. Prior to replacement of topsoil, the regraded surface will be ripped to insure good contact between the spoil and the topsoil. Approximately 6" of topsoil will be redistributed over the covered refuse disposal area. The amount of topsoil available (approximately 10,000 yd3) will be sufficient to cover the 12 acres (approximate) of covered development waste. Any remaining topsoil will be distributed over adjacent regraded areas. The proposed operation is in compliance with the requirements of this section.. XII. Vegetation - Rules 2.04.10, 2.05.4(2)(e) and 4.15 Vegetation information can be found on pages 70 through 75 in Volume 1 of the permit application. The revegetation plan is discussed on pages 131 through 137 of Volume 2. Additional data is contained in Appendix F of Volume 10. The most prevalent vegetation type in the vicinity of the mine is pinyon-juniper woodland, with limited sagebrush and greasewood communities occupying deeper soils along drainages and toe slopes. Approximately 3 acres of previously undisturbed pinyon-juniper will be affected by expansion of the underground development waste disposal site this permit term, with smaller areas of sagebrush and greasewood to be affected by sediment pond and portal bench construction. The major portion of the surface disturbance area at Red Canyon has been affected by previous surface and underground coal mining activities. In the Preliminary Adequacy Letter of May 8, 1981 the Division requested that the applicant provide a general plant community discussion and submit a revised vegetation map to clearly delineate vegetation communities within the proposed surface disturbance area. The applicant provided the requested discussion and a satisfactory vegetation map. Other concerns expressed 1n the PAR were related to details of the revegetation plan, and the establishment of appropriate revegetation success standards. Most of the Division's concerns related to revegetation plan details were satisfied by the applicant's responses. Additional responses provided in Appendix F of Volume 10 have satisfied remaining concerns. -35-