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ase ~ionerefe i <br />Plant Location: <br />27858 Hwy 6 & 24 <br />Rifle, CO 81650 <br />(970)625-1464 , <br />July 21, 2003 <br />Colorado Division of Minerals & Geology <br />Russ Means <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />970/241-I 117 <br />~ 18$,bU <br />~-~~ <br />Plant Location: <br />0242 County Rd. 104 <br />Carbondale, CO 81623 <br />(970) 963-0180. <br />RECEIVED <br />JUL 2 4 2003~/ <br />Oiuision of Minerals and Geology <br />RE: Mine ID #M-1978-349 / <br />Technical Revisiori #1 <br />Vegetation Management for Problematic or Noxious Weed Control <br />Dear Russ, <br />In response to.your latest inspection it was noted that a potential problem regarding <br />noxious or problematic weeds might exist. To address the issue we are submitting this <br />technical revision outlining the corrective actions to be taken. After meeting with Steve <br />Anthony (Garfield County Weed Control) to establish a weed control plan it was <br />concluded that the best approach for mitigation is as follows. <br />During the late summer to mid fall time frame the existing Tamarisk will be cut at <br />approximately ground level, then a herbicide applied immediately. In the more dense <br />stands it may require removal by other means such as an excavator or similar equipment, <br />and then as soon as resprouts appear they can.be sprayed with herbicide. Another species <br />positively identified was the Russian Olive, which will be handled quite similar to the <br />Tamarisk. <br />Overall the Weed Control Plan will attempt to identify the problematic or noxious weeds <br />as they appear and address them accordingly. This plan will be structured on a phased <br />format with roughly 25 - 30% of the target weeds dealt with in the Fal] of 2003 when <br />they are most susceptible to herbicides. This infestation will be directly targeted the next <br />three years with annual control measures taking place as part of an on-going control plan. <br />If you have any questions and / or suggestions please call me at 970/625-1464. <br />Si ely, <br />~ ~ <br />Shawn Von ette <br />General Manager <br />Post Office Box 1815 Rifle, Colorado 81650 Fax (970) 625-1486 <br />