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Mexican Gulch and another small portion to the north [owazds the north end of the George property, <br />where it will settle into the ground. <br />5. Weed Control <br />Haldorson Sand and Gravel will take measures to ensure that the reclaimed land is free of weed <br />infestations. Problem weeds will be monitored closely each spring for the first two yeazs after <br />reclamation to determine if they aze invading the area. Weed control will be initiated if the problem <br />becomes serious. The Division will be consulted regarding any weed infestation area and any control <br />measures prior to their initiation. It may be necessary to control weeds by mowing after the first year; <br />the feasibility of chemical weed control methods will be studied should it be necessary. The plan <br />does not contemplate total weed removal on the property. Past experience shows that some initial <br />weed cover in the first year following retopsoiling is beneficial to the reclamation effort in non- <br />imgated areas such as the slopes. Weeds tend to provide shade for new grasses, are a means of <br />holding snow on the seedbed longer and protect it from wind and water erosion until the planted <br />species have taken hold. <br />6. Revegetation Success Criteria <br />It is suggested that revegetation in should be deemed successful when the live perennial cover is <br />adequate to control erosion and no less than 90% of the pre-mine vegetation. <br />The revegetated area will be monitored for success of reclamation until accepted by the Division. If <br />revegetation failures occur prior to release, an analysis of the site will be made and the area will be <br />revegetated again as necessary. <br />Haldorson Sand and Gravel Mine 29 <br />