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Chavers Mining Resource <br /> Integrated Noxious Weed Management Plan <br /> January 2024 <br /> Page I <br /> 1.0 INTRODUCTION <br /> This Integrated Noxious Weed Management Plan has been developed to control noxious weed <br /> species within the Division of Reclamation, Mining, and Safety(DRMS)permit boundary for the <br /> Chavers Mining Resource (Site — Figure 1). This plan identifies existing noxious weeds on the <br /> property that are comingled with other native plant species that are present (e.g., western <br /> wheatgrass). This plan contains noxious weed management practices, typically recommended by <br /> Colorado State University and other weed organization professionals.Weed management practices <br /> have been tailored to the specific weed problems identified at the Site. The weed management <br /> approach to gain control of the invasive species at the Site presented in this plan is based on the <br /> following concepts. <br /> 1) Weed control must be applied and evaluated over an extended period to be successful. <br /> 2) The basic steps of weed control include identification of weed species, locating the weed <br /> problem, development of control and prevention strategies, implementation of those <br /> strategies, and ongoing monitoring to assess the effectiveness of the efforts. <br /> 3) To prevent/minimize the infestation and spread of noxious weeds, semi-annual <br /> inspections of the permitted area will be conducted in the spring and fall of each year to <br /> evaluate site conditions at the time and monitor response to previous treatments. <br /> Appropriate weed control actions shall be implemented whenever noxious weed species are <br /> observed on the property. This plan identifies specific treatment methods and timetables. Plans <br /> may be modified based in new invasions of weed based on the species of concern, location and <br /> extent of the infestation, and other pertinent factors. Development of this plan is in accordance <br /> with Section 3.1.10 (6) of the Mineral Rule and Regulations of the Colorado Mined Land <br /> Reclamation Board for the Extraction of Construction Materials. <br /> 1.1 PROPERTY INFORMATION <br /> Property Owner Hunt Brothers Properties <br /> Mine Operator Asphalt Specialties Co.,Inc. (ASCI) <br /> DBMS Permit No. M-2015-030 <br /> Site Address 12367 County Road 8,Fort Lupton,Weld County,Colorado <br /> Latitude/Longitude 40.0483890/-104.8223180 <br /> Elevation —4,920 feet above mean sea level(ft amsl) <br /> Permitted Acreage —95 acres <br /> Acreage Disturbed —87 acres <br /> Soil Types(—% of Property) Aquolls and Aquents, gravelly substratum (-73%); Ellicott-Ellicott <br /> sandy-skeletal complex, 0 to 3 percent slopes, rarely flooded (-22%); <br /> and Ustic Torriorthents,moderately steep(-5%). <br />