Integrated Training Area Management EA and Final FNSI

oads and hauling fill and rock materials. These impacts would be temporary, lasting for the duration ofthe maintenance activity (approximately ten days).CO emissions from construction and maintenance vehicles would be expected to be below the 100 tonsper year threshold within the maintenance area of Fort Wainwright. A record of non-applicability wouldlikely be prepared, along with supporting NEPA analysis, for projects that occur within the maintenancearea.Prescribed burning would contribute to temporary air quality impacts. Prescribed burning requires priorwritten Alaska Department of Environmental Conservation approval if the intent is to burn more than 40acres a year. Over the next five years, approximately 800 acres may be burned at Donnelly Training Area.These burns will require written approval.Chemical soil stabilizers or water may be used as a best management practice (Appendix B) to reducefugitive dust emissions during training and construction exercises. Additionally, wind fences and sandfences may be used to reduce the off-site movement of fine sediments transported by wind. Thesepractices would be beneficial to local air quality during dust generating activities, particularly at DonnellyTraining Area where fine loess soils are prone to wind erosion.Alternative 2: Implement ITAM Program through a Management Plan (Proposed Action)The air quality impacts from Alternative 2 would be the same as those described under Alternative 1.While the standard operating procedures for all ITAM programs identified in the USARAK ITAMManagement Plan would provide consistent and efficient work practices, these are not expected to changeair quality.Alternative 3: Suspend ITAM ProgramUnder Alternative 3, ITAM activities would not continue on USARAK installations. Decreasedmaintenance and repair activities would take place under this alternative. This could cause slightlydecreased emissions from using less construction and maintenance vehicles. Air quality would mostnoticeably be affected under Alternative 3 by not implementing dust control best management practice.This would cause moderate adverse impacts to air quality.The following table presents a summary of qualitative impacts to air quality resulting from eachalternative. Descriptions of the qualitative terms are provided in Chapter 2, Description of ProposedAction and Alternatives.Table 3.12 Summary Impacts 1 to Air Quality.ITAM Alternative 1 Alternative 2 Alternative 3Activity Short Term Long Term Short Term Long Term Short Term Long TermTRI None None None None None NoneMinor toMinor toLRAMNoneNone Moderate ModerateBeneficialBeneficialSRA None None None None None NoneRTLA None None None None None NoneGIS None None None None None None1 Short-term impacts are defined as impacts lasting for the duration of a project (approximately ten days)._____________________________________________________________________________________________Environmental AssessmentUnited States Army Alaska, Integrated Training Area Management ProgramManagement Plan 70