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be no impact. No impact. Alternative A: Given that no Imown prime or unique farml;tnds exist within the subject area, there would be no impact. No impact. Signature of specialist: Dennis Murphy SOILS Affected En~~ronment: As an expression of the rugged terrain and arid climate, soils in the proposed lease modification and surrounding areas are generally poorly developed, shallow, and rocky. Deeper soils may occur on the lower slopes and in area drainages. Soil depths :tnd characteristics are highly variable depending on parent material, slope. aspect, and exposure' to surface water. The soils occurring on the dominant steep sideslope areas within the lease modification area have been mapped and identified as the'Corriorthents-Rock outcrop, sandstone complex. These soils are shallow to moderately deep; include approximately 3(1 percent rock outcrops; have a high rock content. typically varying from 30 to 90 percent; have low to moderate available water capacities; moderate mass-movement potential; and support a limited vegetation community dominated b;y adaptive woody plant species. Environmental Consequences & Mitigation: Proposed Action: Because no surface disturbance, other than minor subsidence effects, is proposed or contemplated in conjunction with the proposed coal lease modification, it is not anticipated that existing soil resources would be disturbed or impacted. No impact Alternative A: Because no additional surface or underground disturbance would occur under the No-Action Alternative, existing soil resources would not be disturbed or impacted. No impact. Signature of specialist: Dennis Murphy THREATENED AND ENDANGERED SPECIES Affected Environment: The federally-listed Threatened and Endangered (T&E) species which potentially occur in the lease modification area are found in the attached list of species submitted to the U.S. Fish and Wildlife Service on September 21, 1999 (Appendix C); concurrence with that list was received on September 30, 1999. The BLM sensitive species with potential to occur on the lease modification tract are shown in the table below. Of the sensitive species, most prefer to use habitats other than the mountain shrub communities that dominate the lease modification tract. There would be no effect on sensitive species from this proposal. Tlae lease modification tract meets Standard Four even though it is largely unoccupied by listed, candidate, proposed, and sensitive species. Further discussion of the listed and sensitive species in the area may be found in the recent North Fork Coal Draft EIS (BLM/USFS, 9/1999). FEDERALLY•LISTED THREATENED AND EWANGEItEDSPECIES -- SEE APPENDIX C -- BLivt SENSITIVE SPECIES Spotted Bat Euderma macularum BLM Townsends Big-Eared Bat Corvnorthinus ruwnsendii BLM Fringed Myo[is ~ Myotis thysanodes BLM Northern Goshawk Accipirer genrilis BLM Boreal Toad Bufo boreas boreas State Endan¢ered Northern Leo ard Fro Rana i ens BLM -~-