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4 - j977- Z5Z <br />September 28. 2012 <br />Colorado Division of Reclamation, Mining and Safety <br />1313 Sherman St. Room 215 <br />Dem er. CO 80203 <br />Attention: Mr. Berhan Keffelew <br />Subject: Technical Revision to Pioneer Mine for Weed Control Program <br />Dear Mr. Keffelew: <br />General Shale <br />Building The American Dream <br />CCT 0 : <br />General Shale Brick. Inc. (General Shale) is respectfully submitting a technical revision and fee <br />for a weed control plan for Pioneer Mine. <br />General Shale has identified some or all of the following weed species: <br />Common mullein 1- loundstongue Scotch Thistle <br />Diffuse knap\ \-eed Bull Thistle Leafy Spurge <br />Russian knap\‘eed Canada Thistle <br />Common teasel Musk Thistle <br />General Shale v ∎ ill utilize a contractor to spray the weeds. The contractor will be asked to use <br />herbicides that are not toxic to humans or animals. The herbicide used NN ill depend on which <br />\\ eels are present. The mines will be sprayed on an as needed basis and /or every other year if <br />there \Needs are present. If necessary the weeds will be mowed prior to the application of the <br />herbicide. Nlo\\ing, depending on the weed species present. ma} be used as a treatment in <br />addition to the \geed spraying. <br />If you have any questions please feel free to contact me at (303) 783 -3058. <br />Sincerely. <br />General Shale Brick. Inc. <br />'Jason E. McGra\\ G.1.T., E.1.T. <br />Mine Supervisor <br />