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~~_ ~ <br />~LAPARGE ! ~~ 2 ~~ 2G0~ <br />NORTH AMERICA `~ <br />Construction Materials <br />Apri128, 2005 <br />Mc Larry Oehler ,/ <br />Colorado Division of Minerals & Geology <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />RE: State Pit, MLRB Permit No. M-1990-112 Technical Revision <br />Need Control Plan for Tamarisk <br />Mr. Oehler, <br />. :Lf"5 °. ~_~~Ino.. <br />Per your inspection report that followed your inspection on 2/16/05, Lafarge West, Inc. (Lafazge) <br />is requesting a Technical Revision (TR) to our permit for the State Pit located near Pueblo, <br />Colorado in Pueblo County. The TR is in response to the Division's request for a weed control <br />plan for tamarisk including control methods to be implemented and a schedule for when the <br />various control methods will be employed. <br />Lafarge is proposing use of the herbicides Arsenal and Habitat to control the tamarisk. Habitat <br />will be used in areas where spray could come in contact with water. The spraying will occur <br />before the end of September, as the herbicides are foliar applications and only effective while the <br />plant has green leaves. Future applications, if necessary, will occur during the late summer <br />and/or early fall. The spray will be applied by hand. <br />Lafarge has successfully treated other sites with the proposed actions and believes the TR meets <br />the Division's requests. It is our understanding that this TR for control of tamarisk does not <br />require a fee because it is being submitted by June 27, 2005. If you have any questions or need <br />additional informafion, please do not hesitate to contact me at 303-657-4118. <br />Sincerely, <br />Phillip J. Courtney <br />Land and Lease Specialist <br />Cc: Rusty Cochran -Lafarge <br />LAFARGE NORTH AMERICA INC. -Lafarge Asphalt Concrete & Aggregates <br />10170 Church Ranch Way, Suite 200, Westminster, Colorado 60021 <br />Telephone: (303) 657-4000 Facsimile: (303) 657A037 <br />