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2.0 INVENTORY METHODS Erosion features were inventoried using pedestrian and vehicular surveys of the permanently reclaimed azeas that have not been released from bond. The inventory was completed as outlined in the Permit, Section 4.3 and Appendix 4.3-B. Appendix 4.3-B contains the Bureau of Land Management's Technical Note No. 346, titled "Erosion Condition Classification System." The systematic approach described in Technical Note No. 346 documents the overall erosion condition of a given site during a given survey as well as the erosion stability trends observed between surveys. Field personnel observed seven physical characteristics: soil movement, surface litter, surface ' rock fragments, pedestalling, flow patterns, rills, and gullies. Each physical characteristic was assigned a numeric value, called an individual soil surface factor (SSF). The individual SSF value reflects the amount of erosion activity that created the physical chazacteristic. For example, gullies making up less ' than 2 percent of the total block area are assigned an individual SSF from 0 to 3. Gullies making up between 2 to 5 percent of the total area aze assigned an individual SSF of 6. Individual SSF values range from 0 to 14 or 15. A composite SSF is determined for each block by summing the individual SSF values within that block. The composite SSF has values ranging from 0 to 100. ^ The composite SSF corresponds to the Erosion Condition Classification for each block. Inventory areas with a composite SSF value between 0 and 20 are considered stable. A composite SSF ' value between 21 and 40 reflects an azea with slight erosion activity. A composite SSF value between 41 and 60 reflects moderate erosion in the inventoried area. An area is considered to have critical erosion if the composite 5SF is between 61 and 80. Severe erosion is indicated when the composite SSF i~ is between 81 and 100. 3.0 MONITORING AREAS The Moffat Area is located on the northern end of the property. The azea is roughly rectangular. The eastern edge of the Moffat Area runs along the North Road, for approximately 4,600 feet. The western boundary is located approximately 4,000 feet west of the North Road, just east of Moffat Pond. The West Ridge area is located on the western edge of the permit area. The area is roughly triangular. The area is comprised of 14 terrace structures, with gently sloping drainages in between. The terraces slope gently toward the east, terminating in the String of Peazls, a series of erosion control check dams. 3.1 Moffat Area Monitoring Blocks Ten (10) blocks have been inventoried for erosion features since 1992. A brief description of the each block and past repairs is presented below. 2