Laserfiche WebLink
Best Practices in Abandoned Mine Land Reclamation <br /> Best Management BMP#2-MINE WASTE ROCK/TAILINCS REMOVAL stream side if the material to be relocated is <br /> Practices AND CONSOLIDATION saturated or will tend to flow. Material exca- <br /> Applicable situations vated during preparation of the consolidation <br /> waste rock located in direct contact with area can be used to build the berm or set aside <br /> flowing water or pond to be used later as a cap for the consolidated <br /> mill tailings located in direct contact with pile. Relocation of the waste rock or tailings <br /> flowing water or pond may require the use of backhoes, excavators, <br /> loaders and dump trucks depending on the <br /> Description andpurpose amount of material to be removed and the <br /> The purpose of this BMP is to move the reac- distance between the original site of the mate- <br /> tive material in the waste rock dump or tail- rial and the consolidation area. The consoli- <br /> ings pile away from water sources. Reducing dated pile should be capped, preferably using <br /> the potential for water flow through the dump topsoil and excavated material, and vegetated <br /> or pile will decrease the formation of contam- to prevent erosion. Capping and vegetation <br /> inants, thereby reducing contamination to techniques are discussed in BMP#5 and#6. <br /> nearby water sources. <br /> Regrading and vegetation of the original site <br /> Removal and consolidation are effective where of the waste rock or tailings should also be <br /> there are several small waste piles in an area, performed to minimize erosion on the dis- <br /> or where there is a large pile in direct contact turbed area. These are discussed in BMP #4 <br /> with flowing water. The method is simply to and 6. <br /> isolate reactive material away from water <br /> sources. <br /> When to do it <br /> The optimum time to do this BMP is during <br /> Hour to do it the driest time of the year(generally late sum- <br /> An area must be found that is away from water mer or fall), simply for ease of excavation and <br /> sources and avalanche chutes that can hold the transport. <br /> volume of waste rock or tailings to be relocat- <br /> ed. The area must be cleared of topsoil and <br /> organic material and contoured to hold the <br /> waste rock or tailings. A compacted berm or <br /> small dam may be required on the down- <br /> BULLDOZER CREATING A PIT FOR RELOCATING RELOCATED MINE WASTE PRIOR TO FINAL <br /> WASTE ROCK GRADING AND CAPPING <br /> 16 <br />