SBCT Final EIS - Govsupport.us

Chapter 5 – Environmental ConsequencesWater resource and land use impacts, primarily from training activities would be significant. Theimplementation of several administrative mitigation measures would reduce those impacts to less thansignificant.Significant impacts to air quality from fugitive dust would occur at FTC. Mitigation measures andBMPs would reduce fugitive dust impacts at PCMS to less than significant.Impacts from hazardous materials would be largely mitigable to less than significant. Waterresources, noise, socioeconomics, airspace, energy, and facilities would all experience less thansignificant impacts at all affected areas.Stationing the 2/25 th SBCT at FTC would require the 4/4 th IBCT currently stationed there to relocateto SBMR. The impacts associated with that relocation would be similar to existing conditions inHawaii. Potential impacts of the relocation are presented in the table below, and in section 5.4.16.5.4.2 Geology, Soils, and SeismicityTable 5-37 lists the significance of soil erosion and other geologic, soils, and seismic-related impactsthat would occur under Alternative C for each type of project activity. The current baseline of existingconditions would continue under Alternative C, and soil erosion related impacts would continue attheir current levels. Additional impacts resulting from implementation of this alternative would be thedifference in magnitude between the impacts caused by the current existing IBCT unit and the SBCTunit that would replace it. The differences were introduced in Chapter 2 and are discussed in thisimpact analysis as they pertain to proportionately increased or decreased soil erosion related impactson the installation relative to Alternative C actions.Table 5-37Summary of Potential Soil Erosion Impacts from Alternative CLocationActivity Group Fort Carson PCMSImpacts from Cantonment Construction N/AImpacts from Range Construction N/AImpacts from Live-Fire Training N/AImpacts from Maneuver Training = Significant + = Beneficial Impact = Significant but mitigable to less than significant N/A = Not Applicable☼ = Less than Significant = No ImpactImpacts resulting from construction and training activities under Alternative C would be similar tothose discussed for Alternative A. Soil and vegetation disturbance caused by range construction isexpected to cause short-term and localized erosion and subsequent sedimentation that can be reducedto less than significant levels with implementation of standard construction BMPs, existing federal,state, and local laws, and existing Army requirements specified in the FTC and PCMS INRMPs(DECAM 2002a) and ITAM annual work plan. Potentially significant soil erosion impacts causedweapons firing and munitions impact from the increased frequency and numbers of Soldiersconducting live-fire training activities. However, these impacts can also be reduced to less thansignificant levels by implementing such mitigation. Intensified on and off-road SBCT maneuvertraining activities and the increased MIMs associated with SBCT training are expected to causeFebruary 2008 5-132 2/25th SBCT Final EIS