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<br />Exit Channel 1 <br />The cross-sections show that this feature has had some agradation on northern side of the <br />channel bottom with degradation on the southern side of channel bottom. Cross-section 2 <br />indicates the feature is relatively stable in this section of the channel with periods of agradation <br />and degradation. No corrective measures are planned as a result of the inventory. <br />Exit Channel 2 <br />Cross-section I shows a continued increase in depth and width from previous years' <br />monitoring data. This portion of the exit channel was affected during the reclamation operations <br />of the conveyor belt corridor in late 1996. The lower section of the channel at cross-section 2 <br />shows a significant deepening when compared to 1996 data. Due to the location of the degraded <br />channel sections, it will not be possible to reshape the sections without affecting a significant <br />area of undisturbed ground. Therefore, the entire length of the channel will be inspected and <br />rocked, as necessary, to reduce further erosion. <br />Exit Channel 3 <br />Data collected over the past years at both cross-sections indicate a relatively stable <br />channel over the previous three years with some agradation occurring between 1997 and 1998. <br />Cross-section 2 shows agradation occurred over the past year. No corrective measures are <br />planned as a result of the inventory. <br />r , <br />L J <br />C-BUII.DING HILLSLOPE <br />This section provides information about a potentially unstable slumped portion of the <br />hillslope between the Goat Trail and the previous C-Building access route. Monitoring of the <br />hillslope was initiated in mid-1996 using the method described in the Inventory Methods section <br />of this document. It was believed that the slump was "seep-fed" and had existed for an extended <br />period of time based on the mature hydrophytic-mesic vegetation found at the site. In previous <br />years, the slump remained active due to road ditch maintenance along the access route to the C- <br />Building. The maintenance consisted of removing material from the road ditch at the toe of the <br />slump. A5 a result, [he slump continued to creep downslope into the ditch along to the access <br />route. In conjunction with reclamation activities associated with the conveyor system in late <br />1996, this route was closed and reclaimed in accordance with the Goat Trial reclamation plan. It <br />was anticipated that discontinued maintenance of the route would allow the toe to remain intact <br />and stabilize the slump. <br />The slump exhibited slight movement doting the first monitoring period. Movement <br />measured along the upper transect consisted of a two inch displacement occutring at both the east <br />and west stakes. Movement measured along the lower transect consisted of a three inch <br />displacement at the east stake and a one inch displacement at the west stake. <br />In 1998, the slump and additional surrounding azea experienced significant movement. <br />Movement along the upper transect consisted of a total displacement of 60 inches at the east <br />• stake and 57 inches at the west stake. Movement along the lower transect consisted of a total <br />displacement of 33 inches at the east stake and 31.5 inches at the west stake. A visual inspection <br />19 <br />