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• 19. Post-Reclamation Site Drainage <br />The entire Packrat permit azea will drain to the ephemeral drainage to the east, as in the past prior to <br />mining. The reclamation of the Packrat Road will restore the natural drainage to a configuration that <br />more closely approximates pre-mining conditions than that which currently exists. The Whirlwind azea <br />will be altered slightly since the permanent diversions azound the reclaimed waste rock pile will <br />remain to keep as much water off the waste as possible. The final layout of these permanent ditches is <br />shown on Map F. <br />20. Weed Control <br />Appropriate measures will be employed to minimize the occurrence and spread of noxious weed <br />species. The Weed Control Plan for the site will include: <br />• 1) A weed survey will be made of the permit azea each spring in April or May. <br />2} If noxious weeds aze identified, they will be sprayed using a backpack sprayer or 4-wheeler <br />with chemicals approved for use by the weed control staff of Mesa County. <br />3) After reclamation, weed surveys and spraying will continue until the perennial cover and <br />production of the site have met State and BLM requirements and bond release has been <br />obtained. <br />The BLM and Mesa County weed control staff will be consulted regarding any identified weed <br />infestation areas and appropriate control measures will be agreed upon prior to their initiation. The <br />plan does not contemplate total weed removal in reclaimed azeas on the property. Past experience <br />shows that some initial weed cover in the first year following retopsoiling is beneficial to the <br />reclamation effort at dry range sites. Weeds tend to provide shade for new grasses, aze 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 /> <br />Whirlwind Mine June 07 E-19 <br />