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3. Remove temporary structures as no longer needed. <br />4. Revegetate and armor areas as designed (see Exhibit D) to prevent erosion <br />nnri r r)ntrnl sPdimentntion. <br />FIGURE G-1. <br />Mancos River Watershed <br />(showing both Upper and <br />Lower Mancos). Red <br />circle shows location of <br />Cedar Point. <br />i <br />i <br />F <br />General notes: <br />1. The pit floor, including plant site floors, is below the surrounding land and <br />there will be no discharge under normal conditions from these areas during <br />mining and plant operations/materials storage, as designed. Since surface <br />water flow will instead infiltrate into the bench's alluvial deposits at the west <br />edge of pit and reclaimed areas (along the slope to the creek) and is <br />presumed to flow into Mud Creek as subsurface flows, no net impact on <br />surface flow is anticipated. <br />2. Shale bedrock contains salts and other naturally-occurring materials which <br />are not desirable for discharge downstream, either as surface discharge or <br />(where possible) in ground water. All shale bedrock on the site will be <br />covered with at least some overburden (6"-12") to provide for infiltration, <br />improve trafficability, reduce runoff, and reduce salt from the shale being <br />dissolved and deposited elsewhere. <br />3. The affected area naturally divides into five separate drainage areas, four in <br />existing (2010) mining areas which will be expanded to the east for the full <br />width of the mined area, and one in the pre-law mining areas to the north <br />(separated from the rest by the natural drainage running from Mud Creek Pit <br />west to the large pond outside the permit area). Each will be kept separate. <br />4. Surface flow from the property to the east is expected to be very limited. The <br />Mud Creek Pit also plans no surface discharge from disturbed areas. In <br />addition, the recent conversion from irrigation ditches to pipes for most <br />irrigation to the east greatly reduces water lost into the overburden as well as <br />allowing a conversion to more efficient irrigation of land, resulting in less return <br />flow. Such flow as there is will be collected in existing ponds, flow to infiltration <br />basins on the west edge of the area to be mined, or will flow through the <br />ravine between the north and south areas without coming in contact with <br />disturbed areas. That flow will enter the large pond on site outside the permit <br />area. <br />Exhibits for 112(c) AM-02 Application -M-1994-108-2010- Page 35