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• the most part, be limited to dry weather use. Additional steps to minimize surface disturbance will <br />include burying, or removing from the site, all garbage and foreign debris. <br />Surface and sub-surface waters will be protected from contamination and the intermingling of water from <br />different aquifers will be prevented. Also, unless required for monitoring or as a water suppy, artesian <br />flow will be prevented by appropriate sealing of the hole. Where necessary, small diversions will be used <br />to divert surface runoff around and away from the immediate drill site. Runoff from the drill sites will be <br />very small because of the small area involved and will not be passed through a sedimentation dam <br />unless t occurs in a drainage where a sedimentation dam has already been constructed. Any water <br />generated by the drilling operation, i.e. when drilling whh water, will be contained in small pits and cov- <br />ered with at least two feet of material or allowed to evaporate. <br />Water bearing drill holes located in areas where mining is not imminent (will not be mined within two <br />years) will be plugged according to Figure 3.3.1, 3.3.1A, or 3.3.18. A steel rod or wooden marker will be <br />secured in the collar or as close as practical for future identtication. Dry drill holes wilt be plugged with <br />appropriate cuttings only. These holes will be reclaimed as will arty roads that are built to provide access <br />and are no longer required. This will include returning the area to its approximate original contours, rip- <br />ping or discing heavily compacted areas, replacing topsoil, and seeding with appropriate seed maes <br />(refer to Section 3.6.3.5). <br />In instances where a drill hole is located on cropland, a steel rod or wooden marker will not be cemented <br />into the drill hole collar. Since all drill holes are accurately located for mine activity purposes, an <br />above-ground marker is not required. In the event that the hole needs to be relocated at a later date, <br />survey coordinates are available. The reclamation procedures as described earlier will be followed after <br />the drill hole has been sealed off. <br />Development drill holes located in areas where mining is imminent (will be mined within two years), and <br />that do not enter an aquifer below the lowest coal seam to be mined, will not be seated according to <br />Figure 3.3-1, 3.3.1A, or 3.3.1 B. However, drill cuttings will be placed into the holes to seal the opening at <br />the surface. This will prevent injury to man and wildl'rfe. The proximity of the open pit and its imminent <br />advancement through the area minimizes any possible benefit of sealing such drill holes. <br />F[t ~3 ---~--- <br />3-25 r~~?/ISION ~P~?P, ~(ED <br />'~,1T~= 3 <br />