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confluence will need to be monitored and repaired as needed. <br />An erosional rill /gully enters the YPM 5 -1 channel from the <br />east, downstream from the YPM 5 -lA confluence. Appropriate <br />maintenance and repair measures are warranted. <br />YPM 19 -1/YPM 1 -3 Vegetation cover is dominated by annual weedy species on the <br />hillslopes in the upper YPM -19 watershed, with a high density <br />of rills. Reseeding with contour drilling or tillage operations is <br />warranted, due to the poor initial establishment and extent of rill <br />erosion. On the hillslope west of the YPM 1 -3 channel, a <br />"sinkhole" type failure 30 -40 feet in diameter was previously <br />backfilled. There has been some recent settling that should <br />continue to be monitored and repaired as needed. <br />YPM 6 -1 Holes in the TRM liner in a couple locations along the upper <br />TRM segment. TRM maintenance is warranted to avoid further <br />scour beneath the liner. <br />Pond 013 YPM -4, YPM 4 -1, Drainage channels all appeared to be stable, and properly <br />YPM 4 -2, YPM -17, constructed in accordance with approved design. <br />and Diversion 13A. <br />Pond 014 YPM 3 -2, YPM 14 Stable rip rapped channels. Some isolated occurrences of bank <br />scour and minor side - cutting which may require additional <br />riprap placement. Continue to monitor. <br />There is however two specific locations within the South Pit area that are erosionally unstable and <br />will be excluded from the SL -2 Phase I bond release. These excluded locations are shown on the <br />attached Figure 3b - SL2 Phase I Bond Release Proposed Approval Areas and are described in detail <br />below. <br />The first exclusion area in the South Pit can be described as most or all of the disturbed land located <br />north of the YPM 6 -2 corridor in the YPM 6 -2 and YPM -7 watersheds. The exclusion area consists <br />of two acreage blocks (divided by a temporary maintenance road) totaling approximately 36.2 acres. <br />The specific area is described as follows: <br />The YPM 6 -2 and YPM -7 watershed area of the South Pit not being approved for bond release <br />extends from the point where the SCC exclusion corridor for YPM 6 -2 (SL -2 Map Exhibit A) meets <br />the undisturbed aspen block; from that point northeast along the southeast edge of YPM -7 to the <br />maintenance road corridor; then along the maintenance road corridor to the drainage divide between <br />YPM -7 and YPM -8 (approximately corresponding to the Section 17/20 boundary), then due west to <br />the actual disturbed area perimeter, then along the SL -2 Map A actual disturbed area perimeter south <br />and west to the SCC exclusion area boundary east of Pond 012, then along the outer edge of the bond <br />release boundary depicted on SL -2 Map A back to the point of origin. This area not being approved <br />for Phase I bond release is shown on the attached Figure 3b. <br />13 <br />