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6. Post-Reclamation Site Drainage <br />• The entire permit azea will drain to the souWwest after reclamation, as shown on Map F. This is <br />identical to its original direction. Runoff will move to the southeast using sheet flow on the reclaimed <br />azea although certain azeas will concentrate the flow in drainage channels. Water from the Columbia <br />Ditch (using Trust water rights) may continue to be used to provide water to the lakes as shown on <br />Map F. <br />7. Weed Control <br />The Trust and its operators will take measures to ensure that the reclaimed land is free of weed <br />infestations. Problem weeds will be monitored closely each spring for [he first two years after <br />reclamation to determine if they aze invading the azea. Weed wntrol will be initiated if the problem <br />becomes serious. The Division will be consulted regarding any weed infestation azea and any control <br />measures prior to their initiation. It may be necessary to wntrol weeds by mowing after the first yeaz; <br />the feasibility of chemical weed control methods will be studied should it be necessary. The plan <br />5 does not contemplate total weed removal on the property. Past experience shows that some initial <br />r <br />weed cover in the first yeaz following retopsoiling is beneficial to the reclamation effort in non- <br />irrigated azeas. Weeds tend to provide shade for new grasses, aze a means of holding snow on the <br />seedbed longer and protect it from wind and water erosion until the planted species have taken hold. <br />8, RevePetation Success Criteria <br />Since most of the azea contains pre-law disturbance without topsoil salvage, it is suggested that <br />revegetation on the reclaimed area should be deemed successful when the perennial vegetation in this <br />azea is self-sustaining and adequate to wntrol erosion. The topsoil replacement procedures and the <br />revegetation plan outlined earlier should be more than adequate to achieve [his goal. The majority of <br />the site has been reclaimed using standard procedures for restoring rangeland use although the true <br />post-mining land use is commercial, open space and residential. <br />Alma Placer 7/03 51 <br />