1999-09-30_GENERAL DOCUMENTS - C1981017

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CONTRACTOR shall apply specified chemical herbicide treatments for the purpose of controlling noxious weed infestations at the Coal Basin Mine. The species of noxious weeds to be managed at this location include Plumeless thistle (Carduus acanthoides), Canada thistle (Cirsium arvense) and Houndstongue (Cynoglossum officinale). CONTRACTOR shall provide all equipment and labor necessary to accomplish application throughout the project area. PROJECT MANAGER will provide the chemicals to be applied. Sufficient quantities of Tordon, will be provided to CONTRACTOR on the first day of the Project. CONTRACTOR will be responsible for properly securing chemicals until Project completion. CONTRACTOR shall apply the herbicides provided at the rate of application specified by manufacturer. Upon completion, CONTRACTOR shall return all unused quantities of herbicides in their original packaging to PROJECT MANAGER. Note that a clean water source may not be readily available at the mine site. Potable water may be available in Redstone. Treatment using conventional application methods, such as spraying from truck, all terrain vehicle or back pack mounted equipment is acceptable, given the limitations of access and reclaimed lands. Aerial application is not permissible. Application shall NOT occur within twenty-four (24) hours of predicted significant rain or snowfall. Application shall not occur if wind speeds at the application area exceed fifteen (15) miles per hour. CONTRACTOR must provide a wind speed measurement device, and maintain it in an operating condition throughout the duration of the Project. CONTRACTOR shall keep thorough and accurate records throughout the duration of the project. Records shall indicate material applied, dilution factor, application rate per acre, ambient air temperature (at 9:00 a.m., noon and 3:00 p.m.) and wind speed (at 9:00 a.m., noon, 3:00 and 5:00 p.m.). CONTRACTOR shall conform to all applicable environmental and safety standards given application methods, duration and products. CONTRACTOR shall not clean and dispose of unused or remnant materials in a manner which is deemed to be deleterious to environmental resources of the area. Failure to conform to these specifications shall result in immediate suspension of contract. Because the infested areas are adjacent to public use areas, CONTRACTOR shall post signs along the perimeter of treatment areas five (5) days in advance of treatment. PROJECT MANAGER will remove the signs following completion of the Project. The signs shall be posted at three-hundred foot (300') intervals, and shall include the following information: Notice of intent to apply weed control chemicals; Warning not to enter area one day prior to, and five days after planned application date; Estimated date of application; Common name of material to be applied; Contractor name and phone number; Project administered by Colorado Division of Minerals and Geology in conjunction with the Pitkin County Land Manager. For more information call (970) 241-0336 or (303) 866-3567. 3