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Sand Arroyo Pit- M-1978-283 <br /> Weed Control Plan (cont) <br /> weed list and should be looked for on the mine and controlled if <br /> needed. <br /> 4 . NUISANCE WEEDS THAT SHOULD BE ADDRESSED <br /> a. Russian thistle, common name tumbleweed <br /> b. Kosha <br /> 5 . CONTROLLING ABOVE LISTED WEEDS <br /> All of the above weeds can be controlled or eradicated by using <br /> mechanical, biological, or chemical control depending on species . <br /> The Operator will have a qualified weed control agent observe the <br /> mine for possible noxious weeds and advise the Operator on how <br /> noxious species should be treated. Initially it may require <br /> semi-annual spraying or mowing to control the problem weeds and <br /> digging the woody species, but eventually we expect to revert to <br /> an annual control program to maintain the site . Records of weed <br /> control activities, including dates work was done; methods used; <br /> area sprayed and types/quantities of chemical used if any, will <br /> be kept at the Corporate office in Walsenburg, Colorado for <br /> review. <br /> 46 <br />