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<br />• Implementation of a weed control and eradication program. <br />Weed control methods and practices in order of preference for use on the Yankee Gulch Project <br />include the following: <br />• Cultural -Preventing unnecessary disturbance and planting acceptable aegressive plant <br />species for site colonization; <br />• Chemical -Applying appropriate herbicides by a licensed applicator. All herbicides will be <br />applied in accordance with manufacturer's recommendations and in accordance with <br />applicable laws: <br />• Mechanical -Mowing, pulling, disking and plowing; and <br />• Biological -Introducing insects or other biologic agents that are known to inhibit or prevent <br />the reproduction of noxious weed species. Use of biological controls will be coordinated <br />with the Colorado Department of Agriculture's Insectory in Grand Junction or other <br />knowledgeable agencies. <br />Weed control methods and practices will be timely implemented to maximize their <br />effectiveness. When herbicides are used, they will be applied in a manner that conforms with <br />BLM Manual H-901 1-I and applicable federal, state and local laws. The entry of herbicides <br />into surface waters will be prevented, with adequate buffer strips being used when application <br />occurs in proximity to water bodies. If weed control becomes necessary within riparian <br />corridors, hand application on specific targe[s will be employed using herbicides at proper <br />application rates and with techniques that are acceptable for such use. <br />5.1.5 Livestock Management and Control <br />Livestock grazing on reclaimed areas may be a problem. [f livestock access to newly reclaimed <br />areas becomes a potential risk to revegetation success or site stability, fences may be <br />constructed to protect newly revegetated areas. Fencing may also be used to control access to <br />undeveloped and developed water resources as is necessary to ensure the stability of <br />revegetated sites associated with such areas. Normally, one-strand or two-strand solar/battery- <br />poweredelectric fence will be adequate to control livestock access to reclaimed areas during the <br />establishment period. Once vegetation is adequately established, fencing may be removed and <br />used to control access at other locations as needed. <br />5.2 REVEGETATION SUCCESS CRITERIA AND FINAL MONITORING <br />Periodic inspections, monitoring, and routine and cortective maintenance will be performed <br />during the final reclamation phase of the Yankee Gulch Project. Inspection of reclaimed areas <br />will be performed at intervals adjusted to the level of reclamation activity, and climatic and <br />environmental conditions that affect the project components being reviewed. Written records <br />of inspections will be kept on tile. Prioritized cortective action plans will be formulated as <br />needed based on these inspections. During inspection of permanently reclaimed lands <br />particular attention will be paid to stability, adequacy of erosion and sedimentation controls. <br />and trends in vegetation establishment and growth. When these qualitative inspections indicate <br />an area appears to meet revegetation success criteria. quantitative liability release monitoring <br />may be initiated by American Soda in consultation with the BLM. Three to five years is the <br />.~mcncan Suds. L.L.P. 5-12. <br />Sod Cunservarmn. Fmvon and Scdrment <br />Cunrrol, reclamation and Neve¢eution Plan <br />r )crober 28. 1998 <br />Kcvrscd Apnl 9. 1999 <br />