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~ ~~~z <br />CITY O F ~VADA ~u,l~-fl~if <br />1~UBLIC WORKS DEPARTMENT - WATEA [i_UALITY/ENVIRONMENTAL SERVICES <br />FACSIMILE: 720-898-7603 • TDD: 720-898-7869 <br />PxorJ e: 720-898-7800 <br />June 14, 2005 <br />Division of Mineral and Geology <br />Department of Natural Resources <br />1313 Sherman St. Room 21 S <br />Denver, CO 80203 <br />JUN 1 52005 <br />Olvlalnn of Minerals and Geology <br />Subject: A technical revision to the application to incorporate the noxious weed management <br />plan Noxious Weed Management Plan for Pioneer Sand Company Inc., Jefferson <br />County, Mine ID#M-1983-139/ <br />Please find enclosed the Weed Management Plan for the subject site to be incorporated as a <br />technical revision to the mine application. The Plan has targeted, but is not limited to, Diffuse <br />K.napweed, Dalmation Toadflax, Musk Thistle and Canada Thistle. <br />The plan calls for aerial application on 275 of the 420 acres, which occurred on May 10, 2005, <br />and there was additional follow-up treatment with a ground crew during the week after the aerial <br />application, In the fall, there will be a survey and treatment as necessary. Please note the City <br />is working to control the noxious weeds on the entire 420 parcel, not just the portion covered in <br />the permit. Depending on effectiveness of the initial efforts, we are hoping to not us aerial <br />application in 2006. <br />if ads: icnal is ~rmat on is needed, please c»ll me at ?20.8°$.?QO'.. <br />mes B. McCarthy, Manger <br />ater Quality /Environmental Services <br />P.O. BOX 8101 1$101 RALSTON ROAD ~f~RVADA, COLORADO ~801)~1-81t)1 <br />