Draft Environmental Impact Statement for Roca Honda Mine

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Chapter 3. Affected Environment and Environmental Consequences Figure 31. Soil survey of Roca Honda permit area 106 DEIS for Roca Honda Mine, Cibola National Forest
Chapter 3. Affected Environment and Environmental Consequences Most of Section 16 is covered by a Celavar-Atarque complex (305), with roughly 50 percent Celavar soils, 35 percent Atarque, and 15 percent other minor components. Depth to bedrock for Celavar soils in this area ranges from 20 to 40 inches. Depth to bedrock for Atarque soils ranges from 10 to 20 inches. These soils are well drained and have sandy clay loam and clay-loam textures. Slopes range from 1 to 8 percent and topsoil suitability is rated “poor” to “fair” due to shallow depth to bedrock. Two long, narrow bands of Penistaja-Tintero complex (205) soils run north-south through Section 16. Approximately 45 percent of this complex consists of Penistaja and similar soils, while 40 percent is Tintero and similar soils, and 15 percent other minor soil components. Depth to bedrock for both Penistaja and Tintero soils is 60 inches or more. These soils are in well drained to excessively well drained areas on 1–10 percent slopes and topsoil suitability is rated “good” (RHR, 2009d). Hagerwest-Bond fine sandy loams (220) occur in two areas of Section 16. Approximately 50 percent of these areas is Hagerwest and similar soils, 35 percent Bond and similar, and 15 percent minor components. Depth to bedrock for Hagerwest soils in this area ranges from 20 to 40 inches, and for the Bond soils, from 10 to 20 inches. Both soils have textures of fine sandy loam, sandy loam, and sandy clay loam. Slopes are from 1 to 8 percent and topsoil suitability is rated “poor” to “fair” due to shallow depth to bedrock and the presence of rock fragments. Mido loamy fine sand (353) covers about 90 percent of the northwest portion of Section 16 while 10 percent consists of other minor components. Depth to bedrock for this soil is 60 inches or more; it is excessively well drained and occurs on 1–6 percent slopes. NRCS rates topsoil suitability as “poor” due to excessive sandiness (RHR, 2009d). The northwest part of Section 16 also contains the Sparank-San Mateo-Zia complex (230). This complex is approximately 40 percent Sparank, 35 percent San Mateo, 20 percent Zia, and 5 percent other minor soil components. Depth to bedrock for this soil complex is more than 60 inches, and soils are well drained to excessively well drained. Soil textures range from silty clay loam, clay loam, sandy loam, to fine sandy loam. This complex is on gentle 0–3 percent slopes but topsoil suitability is rated “poor” to “fair” due to high sodium and/or clay content. Environmental Consequences Alternative 1 Under the no action alternative, there would be no disturbance of the surface topography and soils from clearing and construction on Sections 9, 10, and 16. No mining would take place, so there would be no excavation within the Westwater Canyon Formation, no extraction of uranium ore, and no backfilling of excavated spaces and rooms. In sum, alternative 1 would have essentially no impacts on geology and soils at the RHR permit site. Effects and Mitigation Measures Common to the Action Alternatives It is not possible to specify exactly how much uranium ore would be mined from the Roca Honda Mine. Nevertheless, under both alternative 2 and alternative 3, some 4 million tons of uranium ore, more or less, containing about 18 million pounds of uranium oxide (U3O8), could be mined DEIS for Roca Honda Mine, Cibola National Forest 107
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United States Department of Agricul
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Environmental Impact Statement for
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Summary Roca Honda Resources, LLC (
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• Potential effects on the charac
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Mine Operation Summary Mine operati
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Resource Impacts and Mitigation •
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Resource Impacts and Mitigation num
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Contents Chapter 1. Purpose of and
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Contents Table 29. State of New Mex
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Contents Table 94. Food stamp enrol
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Contents Figure 66. Aerial image of
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H1N1 Influenza A virus, subtype H1N
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STD sexually transmitted disease SW
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Chapter 1. Purpose of and Need for
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Chapter 2. Alternatives, Including
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Effects on Sediment Transport and D
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Chapter 3. Affected Environment and
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Figure 45. Modeled hydrograph for S
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Figure 47. Modeled hydrograph for C
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Pollutant and Averaging Time Chapte
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Climate and Greenhouse Gases Chapte
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Regulatory Review Chapter 3. Affect
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Radon-222 Emissions Chapter 3. Affe
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Figure 48. Vegetation communities i
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State Listed Plant Species Chapter
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Species Status Habitat and Distribu
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Common Name (Scientific name) Black
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Common Name (Scientific Name) Gunni
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Table 39. Criteria for rating impac
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Wildlife Mortality Chapter 3. Affec
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Table 40. Impact characterization f
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Transportation Chapter 3. Affected
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Figure 57. Nearby recreation sites
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Table 41. Impact characterization f
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Minority Populations Chapter 3. Aff
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Figure 58. Distribution of minority
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High school graduates, percent of p
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Earnings Chapter 3. Affected Enviro
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Public Finance Chapter 3. Affected
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providing an estimate of the “rip
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Tax Revenue Chapter 3. Affected Env
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Table 61. Household characteristics
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Tribal History Chapter 3. Affected
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Natural Resources Chapter 3. Affect
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Physical APE Chapter 3. Affected En
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Agricultural Fields Chapter 3. Affe
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• Removal of a property from its
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Impacts to Natural Resources with C
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Site No. Project Section Land Statu
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Visual Resources Affected Environme
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Figure 64. View looking north from
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Alternative 1 Chapter 3. Affected E
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Environmental Consequences Chapter
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New Mexico 1.11 (0.98 - 1.25) Cibol
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Magnitude Descriptor Precedence or
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Noise Chapter 3. Affected Environme
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Resource Area Cultural and Historic
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Cumulative Effects Chapter 3. Affec
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Chapter 4. Consultation and Coordin
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Chapter 4. Consultation and Coordin
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Glossary Air-Quality Control Region
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References Cited (ACHP, 2005). Advi
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References Cited (Basin Coordinated
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References Cited (Brugge et al., 20
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References Cited (Census, 2011). U.
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References Cited (DesertUSA, 2011).
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References Cited (Gordon, 1961). Go
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References Cited (Jackson, 2002). J
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References Cited (Lyford et al., 19
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(NatureServe, 2010a). NatureSevere.
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References Cited (NMDH, 2010c) New
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References Cited (NRGNHA, 2011). No
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References Cited (RHR, 2011a). Roca
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References Cited (Stacier and Guzy,
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References Cited (USEPA, 1975). U.S
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References Cited (USFS, 2001). U.S.
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References Cited (USFWS, no date).
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References Cited (WildEarth Guardia
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Index E economic impacts - 15, 73,
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Index N National Environmental Poli
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Index W waste - 18, 40, 46, 56-57,
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Draft Environmental Impact Statement for Roca Honda Mine

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