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c/ <br />rro~ : L.,~..~,J~ w~~z< .Z~c . <br />December 5, 2005 <br />Mr. Steve Shuey <br />Environmental Protection Specialises <br />Division of Minerals and Geology <br />101 South 3rd Street, Suite 301 <br />Grand Junction, Colorado 81501 <br />..~. ~E:i <br />. e~ f2-So~.~ <br />DEC 0 7 2!i05 <br />.t ~ ~ c,,,,3+®ay <br />RE: North Delta Pit Permit No. M-1979-002, Technical Revision for Weed Contro- <br />Plan / <br />'T~-O~r/ <br />Deaz Mr. Shuey, <br />Lafarge West, Inc. (Lafarge) is requesting a Technical Revision to our existing North <br />Delta Pit Permit to include a Weed Control Plan, as you requested in an August 9, 2005 <br />site inspection. <br />The complete Weed Control Plan is enclosed and includes the following measures: <br />-Weed populations will be monitored and identified for control. An annual Weed <br />Control Plan will be developed accordingly, and follow-up evaluations and <br />documentation will be completed to monitor control success. <br />-Herbicide application will mainly be used on perennial forb species such as <br />Canada Thistle, Field Bindweed, Whitetop, and Perennial Peppergrass, as well as <br />annual fortis like Russian Knapweed. Tamarisk will be controlled with a foliaz <br />application of Arsenal and Habitat and will be sprayed between the months of <br />June and September. Russian Olive will be cut down and the stump will be <br />treated with Garlon and Pathfinder. If, after control methods have been <br />applied, there are still populations of weedy species remaining, subsequent <br />applications will be completed. <br />Lafarge will continue to work with you and the Division of Minerals and Geology to <br />resolve this and any other issues in a timely manner. Please feel free to contact me at 303- <br />657-4143 if you have any questions or concerns. <br />Sin~cer~el-y~,p ~ . <br />/ 'ti(~ v~~(- ~' ~- <br />Noel Weisenbacher <br />Mapping and Weed Specialist <br />RF~~~~~D <br />OFD ~? <br />Div/aion orM~a~anr~ <br />eao~, <br />