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STATE JF COLORADO <br />~~ DI4ISION OF MINERALS AND GEOLOGY <br />~` Department of Natural Resources <br />1313 Sherman St., Room 275 <br />Derwer, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />December 20, 2005 <br />Mary Seifert <br />) Seifert Construction <br />~. <br />~-~ PO Box 305 <br />~Vestcliffe, CO 81252 <br />RECE~t/ED <br /> <br />~IlfiflOY Of MIII@f81fl~ Gaol <br />Re: Seifert Pit, Permit M-1985-040 Approval of Technical Revision TR-02, and <br />_ __l~Completion of Corrective Actions (from Inspection of 9/29!05). <br />1 <br />Uear Ms. Seifert, <br />~~ <br />~6f~ COLORADO <br />DIVISION O F <br />MINERALS <br />GEOLOGY <br />RECLA MATION•M IN ING <br />SAFETY•S LIEN CE <br />Bill Owens <br />Governor <br />Russell George <br />Executive Director <br />Ronald W. Cottony <br />Division DIreCTOr <br />Natural Resource Trus[ee <br />I have received your submittal dated 11/29(OS, consisting of a noxious weed control plan fox the site named above. <br />T'he submittal was to satisfy an inspection problem concerning the presence of Canada thistle which did not appear <br />to be under a control plan. <br />The plan you provided appears adequate for controlling the Canada thistle on the small area that was noted in the <br />Division's inspection. You are aware that Round-up (aka Glyphosate) is anon-selective herbicide. As such, it will <br />kill all vegetation it contacts, including any desirable vegetation on the area being treated. The area in question is <br />the surface of a small stockpile in the pit. It appeared to be topsoil, but my observation was not conclusive. If it is <br />topsoil, it is imperative that the thistle be eliminated, even if it means that the establishment of grass is delayed a <br />few years. Control of Canada thistle will require several years of spraying and mowing, so please be vigilant with <br />the monitoring and aggressive with the treatments. You should also make sure that this plant does not spread to <br />other areas of the permit. <br />Round-up is not persistent in the soil, and after the thistle is gone, grass maybe planted. Please report the activities <br />and progressin your annual reports. <br />The Division considers the weed control plan to be adequate, and is approving the technical revision. The <br />outstanding problem at the site is, therefore, considered to be corrected. If there are any questions, please contact <br />me at the Division's Durango field office: 701 Camino del Rio, Room 125, Durango, CO 81301; telephone: 970- <br />247-5193. <br />Sincerely, <br />_~d~ ~~. <br />Bob Oswald <br />Environmental Protection Specialist <br />Ec: Harry Posey, DMG <br />C:\seifert nox pb con tr2 appr/rco <br />Office of Office of Colorado <br />..__a i -„a o,...i........:__ e,.,;..o ,,.a i,,.,~n„e nn ~.,a~ ~ Gcnlneiral Survev <br />