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• • • <br />a <br />t7 <br />CD <br />M <br />n <br />CD <br />CD <br />CD <br />C <br />o' <br />.3 <br />Cn <br />a <br />Cn <br />CD <br />C <br />CD <br />d <br />w <br />CD <br />Table S-1 <br />Comparison of Alternatives <br />Issue Alternative 1 Alternative 2 Alternative 3 <br /> No Action Proposed Action No Activity in Roadless <br /> Shaft/Escapeway: Same as No Action as Same as Alternative 2. <br /> disturbance already exists <br />Grazing No impact E Seam MDWs: Short term decreases in <br /> available AUMs and potential long term <br /> increase in forage at reclamation sites in <br /> Gambel oak types <br /> Shaft/Escapeway: Same as No Action as Shaft/Escapeway: Same as No Action as <br /> disturbance already exists disturbance already exists <br /> E Seam MDWs: 4.8 miles of upgraded roads E Seam MDWs: 4.8 miles of upgraded roads <br /> and 15.8 miles of new temporary road, of and 14.1 miles of new road, short term and <br /> short term and periodic access restrictions on periodic access restrictions on NFSR 711 due to <br />Roads No impact NFSR 711 due to the movement of over- the movement of over-size/over-length vehicles <br /> size/over-length vehicles (Shaft construction: (Shaft construction: additional 7 round trips per <br /> additional 7 round trips per day for cement day for cement trucks, MDW <br /> trucks, MDW construction/reclamation: construction/reclamation: additional 5 round <br /> additional 5 round trips per year for drill rigs trips per year for drill rigs and transport of <br /> and transport of large equipment on trailers) large equipment on trailers) <br /> Shaft/Escapeway: Same as No Action as Same as Alternative 2. <br />Impacts on Visual <br />impact <br />No disturbance already exists <br />Quality Objectives E Seam MDWs: Effects are consistent with <br /> partial retention VQO <br />Impacts to Class I No impact Shaft/Escapeway & E Seam MDWs: No Shaft/Escapeway & E Seam MDWs: No Impact <br />Airsheds impact <br />Gaseous emissions No effect beyond Shaft/Escapeway & E Seam MDWs: 36,000 Shaft/Escapeway & E Seam MDWs: Same as <br />(NO2, SO2, and CO) current levels pounds per year Alternative 2, for a slightly shorter duration <br /> Shaft/Escapeway & E Seam MDWs: Less Shaft/Escapeway & E Seam MDWs: Less <br />Greenhouse gas No additional than 0.1% concentrations 50 meters from the than 0.1% concentrations 50 meters from the <br />(methane) emissions emissions source, would increase potential greenhouse source, would increase potential greenhouse <br /> gas emissions in Colorado from fossil fuel gas emissions in Colorado from fossil fuel <br /> combustion by approximately 1.3 percent combustion by approximately 1.1 percent