Laserfiche WebLink
<br />Section 816.41(d) Continued. <br /> <br /> <br />be used to divert the flow of water away from disturbed areas, rather <br />than using treatment facilities. These ditches are shown on Map 16a, <br />Kerr Mine Area Surface Mater Hydrology and discussed in detail under <br />Section 186.43. Ditch design is specified in Table 60, Temporary <br />Diversion Structure Specifications. <br />Other practices employed to meet the requirements of Part 816 will <br />include prompt revegetation according to the timetable set forth in <br />Section780.18, regulating water flow velocity with ditches set to <br />proper grade, contour furrows, riprap channels and mulching. No <br />toxic- or acid-forming materials are present in the Mine Plan Area <br />which would require selective placement and sealing of overburden. <br />Further discussion on the chemical characteristics of the overburden <br />is presented in Section 779.14 and in Table 73, Chemical Analysis of <br />Overburden. No special treatment of coal processing waste is <br />applicable since none will be produced, as discussed in Sections <br />816.81-816.93. Studies on the possible long-term effects of proposed <br />surface mining activities are presented in Section 780.21. These <br />studies indicate that long-term adverse effects will be minimal <br />without selective placement of spoil material in backfill areas. As <br />required by 30 CFR 816.42, all runoff from disturbed areas will be <br />passed through a system of sedimentation ponds. Sedimentation ponds <br />are described in detail in Sections 780.21, 780.?~5, 816.46, and in <br />Exhibit 42, Drainage and Sediment Control Plan. <br />In addition to reclamation techniques and treatment methods described <br />and referenced in this Section, further protection of the hydrologic <br />balance will be achieved by ongoing water monitoring, which will be <br />conducted to detect changes in surface and ground water quality and <br />quantity. The hydrologic monitoring plan is described in detail in <br />Section 180.21. <br />816-32R <br />Revised - January, 1991 <br />