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Reclamation Report. The maps were used to determine whether regraded areas were consistent <br />with the approved postmining topography. <br />Each year SCC also submits a Rill and Gully Survey. This annual report is produced by <br />inventorying erosional features on the hillslopes and drainage channels where additional repairs and <br />maintenance work are identified. The 2009 and 2010 survey maps were referred to during the bond <br />release inspection. <br />Drainage reconstruction <br />The approved drainage reestablishment consisted of the design and construction of permanent <br />postmining drainage channels. The post-mine channels are shown on Figures 2a and 2b of this <br />document. Post-mine channels are designed and certified to safely convey the peak discharge from <br />the 10-year, 24-hour storm event in accordance with Rule 4.05.3 and do not require as-built <br />certifications. Certified designs for the post-mine channels were approved prior to the bond release <br />application and are provided in Tab 20 Attachment 20-1 of the permit. The approved Post-Mining <br />Topography Map, Exhibit 20-2 shows the location of the approved post-mine channels. Exhibit <br />B of the SL-3 application, "Post-mine topography and Drainage" shows the completed drainage <br />channels. <br />In the original permit area Post-mine Channel 005 Gulch, and its' tributary 005-E1, flow to Pond <br />005 which discharges through an unnamed drainage into Dry Creek. Post-mine Channel 006 <br />Gulch, and its' tributaries: 006-NE I, 006-NE2, 006-NE3, 006-E1, and 006-E2 flow to Pond 006 <br />which discharges into Hubberson Gulch which also flows into Dry Creek. Several other <br />designed permanent tributary drainages were approved through revisions to the permit, including <br />005-W1, 006-S1, 006-NE3, and 006-NE4. In the South Extension Area, postmining drainage <br />channels PM-2 and PM-3 flow into Pond 016, which discharges into an unnamed tributary of <br />Hubberson Gulch and eventually into Dry Creek. Postmining drainage channel PM-lA flows <br />into Pond 017 which also flows into Hubberson Gulch and then into Dry Creek. Additional <br />tributary drainage channels have been "field fit" in accordance with provisions of the approved <br />rill and gully repair plan, in locations where concentrated flows on the reclaimed landscape <br />resulted in channel formation. <br />Facilities <br />The final reclamation plan for the Seneca II-W Mine includes retention of numerous permanent <br />facilities including access and light use roads, an electric substation and powerline, and various <br />fences associated with grazing management, property boundaries, and shrub plots. <br />Documentation to support retention all facilities has been provided within Tab 20 Attachment <br />20-2 of the permit application package. SCC plans to retain several stock ponds and <br />sedimentation ponds as permanent structures; however the permanent sediment ponds and stock <br />ponds are not included in the SL-3 bond release application. SCC will submit a technical <br />revision addressing the remaining requirements of Rule 4.05.9(13) at a later date. <br />Roads <br />Page 9 of 22