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• ~ '. <br />'' <br />Page 4 <br />10. The problems forseen with stabilizing the tailing pile with <br />re vegetation efforts only are numerous. <br />i) The tailing pond, as currently constructed, is composed <br />of a sandy outer '"bank" and a slime interior. Both <br />sandy and clayey "textured media" are restrictive to <br />plant growth due to the sands' inability to retain <br />moisture and adsorb nutrients, and the clays' inability <br />to liberate the moisture in the very small pore <br />volumes. Thus water and nutrients in solution are <br />unavailable for plant uptake. Depths of 12 inches of <br />topsoil replacement upon these extreme textural <br />chatacteristics may not be adequate to support <br />revegetation to adequately protect the pile surface and <br />provide forage; <br />ii) the extreme sandy and clayey textures are also very <br />susceptible to water erosion; burrowing animals also <br />perpetrate erosion. Once an incision occurs in these <br />"sterile" materials, vegetative regeneration is <br />unlikely, especially on sloped ground; <br />iii) thus, critical areas where erosion is expected to <br />occur, i.e., sloped areas, dam face or the water <br />collection and/or transmittal features, etc., should be <br />armoured with a rock cover to minimize initial incision <br />and continued erosion and sedimentation. Distinct <br />drainages should be created as a part of final pile <br />grading to control flows and minimize erosion. <br />11) Groundwater monitoring wells are non-existent. <br />12) The mine/facilities area was inspected. The mine and mill <br />facilities are maintained in a neat and orderly condition. <br />13) The Urad site was visited. Any literature you have on reclamation <br />plans and resulting success would be of much interest. <br />0435E/scg <br />