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<br />2. Post-Reclamation Site Drainaee <br />The entire permit area will drain to the north after reclamation, as shown on Map Exhibit E-2. Some <br />runoff will enter the new lake left as part of the reclamation plan. <br />3. Weed Control <br />United will take measures to ensure that the reclaimed land is free of weed infestations. Problem <br />weeds will be monitored closely each spring for the first two years after reclamation to determine if <br />they are invading the area. Weed control will be initiated if the problem becomes serious. The Di- <br />vision will be consulted regarding any weed infestation area and any control measures prior to their <br />initiation. II may be necessary to control weeds by mowing after the first year; the feasibility of <br />chemical weed control methods will be studied should it be necessary. The plan does not contem- <br />plate total weed removal on the property. Past experience shows that some initial weed cover in the <br />first year following retopsoiling is beneficial to the reclamation effort. Weeds tend to provide shade <br />for new grasses, are a means of holding snow on the seedbed longer and protect it from wind and <br />S water erosion until the planted species have taken hold. <br />4. Revegetation Success Criteria <br />It is suggested that revegetation in the wetland area should be deemed successful when the perennial <br />vegetation is self-sustaining and adequate to control erosion. The irrigated hay land areas will be <br />deemed adequate when the production of alfalfa reaches 90% of its pre-mine level or 2.6 tons per <br />acre. <br />The revege[ated 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 /> <br />Piceance Pit 7/01 24 <br />