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Grass Lined Channel #1. At no point will stormwater or excess irrigation water be allowed to <br />flow down the 2H:1 V slope of the fills. See Exhibit D - Mining Plan for more information on <br />ditch specifications. <br />6. Weed Control <br />Measures will be employed for control of any noxious weed species currently on site. Control <br />measures will also be used is growth of weed species on the reclaimed area threatens further <br />spread of the weeds to nearby areas. A Weed Control Plan will be utilized as follows: <br />1) Each April, a weed survey will be made of the permit area. <br />2) If any patches or plants have been identified, they will be sprayed by backpack sprayer or <br />4-wheeler using chemicals approved for use by the weed control staff of La Plata County. <br />3) After reclamation, weed surveys and spraying will continue until the perennial cover and <br />production of the site have met DRMS requirements and bond release has been obtained. <br />The Division and La Plata County weed control staff will be consulted regarding any weed <br />infestation area and any control measures prior to their initiation. The plan does not contemplate <br />total weed removal on the property. Past experience shows that some initial weed cover in the <br />first year following the retopsoiling is beneficial to the reclamation effort in dry range site. <br />Weeds tend to provide shade for new grasses, are a means of holding snow on the seedbed longer <br />and protect it from wind and water erosion until the planted species have taken hold. <br />During the removal of overburden, if an area of heavy seed infestation is encountered, it will be <br />buried in the slopes rather than used as a growth medium. During all phases of the mining <br />operation, the permit area will be monitored closely every year which the operator is active to <br />determine if there are any additional weeds invading the area. If infestations of similar weeds as <br />are present now is experienced, the current weed control plan will continue to be used. If any <br />new species of weeds are found, La Plata County Weed Control Authority and the Division will <br />be consulted in order to formulate the best plan for the new infestation. <br />Cugnini Pit, November 2009 E-4