Draft Environmental Impact Statement for Roca Honda Mine

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Chapter 2. Alternatives, Including the Proposed Action Figure 15 also shows the location of a treated mine water (water reuse) transportation line and corridor leaving the mine permit area at the southeast corner of Section 10. This 20-inch diameter pipeline would run along the haul road to the southeast corner of Section 11 then turn north for a distance of approximately 6 miles where the water would be discharged onto private land. This water line is a substantial new addition to the plan, not previously proposed in RHR’s October 2009 permit application. In brief, the water reuse pipeline was proposed by RHR in response to Agency concerns and comments received upon review of RHR’s October 2009 submittal and during public and Agency scoping. Concerns were expressed regarding potential adverse impacts of discharge of water upon the San Mateo Creek drainage. In response, RHR committed to transporting the water to a location outside of the San Mateo Creek drainage for discharge. This pipeline would be placed next to the haul road and the utility corridor in Sections 16, 15, 10, and 11. It would then turn north along the road at the junction with the Section 11 haul road and proceed north through Section 2 (Forest Service lands) and onto private land, as shown on figure 15. An estimated width of 20 feet was assumed to be disturbed during the placement of the pipeline over a distance of 28,919 feet (5.48 linear miles), which totals 13.3 acres, 2.5 acres of which would be on National Forest System lands and 10.8 acres on private land. The pipeline would feed into a new water storage tank to be used for pasture irrigation. As a contingency during overflow periods, water may also be discharged into Laguna Polvadera or San Lucas Arroyo. RHR proposes to conduct mining operations for a period of approximately 18–19 years, including mine development, operations, and reclamation. The project would start after all required permits have been obtained, including approval by the Cibola National Forest of the mine plan of operations. However, the ultimate mine life of the Roca Honda Mine would depend on uranium market conditions and potential identification of additional uranium ore. Therefore, the ultimate mine life could well exceed 18–19 years. The following sections summarize the “Roca Honda Mine Plan of Operations, Revision 1” (plan) in relation to three phases of proposed mining activities: • Mine Development includes baseline data gathering, initial site development, construction, and depressurizing activities which would be conducted to facilitate mine shaft construction. • Mine Operation includes activities directly related to production of uranium ore from the underground mine and transport of the ore offsite for mineral processing. • Mine Reclamation includes activities intended to reclaim land affected by mine development and operation, and to return that land to an approved post-mining land use. Although these activities would generally be performed in sequence, the proposed development, operations, and reclamation activities would overlap to some extent throughout the mine’s life. RHR proposes that it would have an archaeologist onsite to monitor all surface disturbance activities undertaken during mine development, operations, and reclamation. The proposed activities are further described in the following sections. 34 DEIS for Roca Honda Mine, Cibola National Forest
Figure 15. Proposed Roca Honda Mine – layout of surface facilities Chapter 2. Alternatives, Including the Proposed Action DEIS for Roca Honda Mine, Cibola National Forest 35
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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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Chapter 2. Alternatives, Including
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Marquez Canyon Exploration Current
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Chapter 2. Alternatives, Including
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Chapter 3. Affected Environment and
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Figure 33. Permit area watershed an
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Environmental Consequences Surface
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Construction Phase Effects Chapter
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Table 12. Storm water controls for
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Best Management Practices Chapter 3
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Effects on Sediment Transport and D
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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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(NatureServe, 2010a). NatureSevere.
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References Cited (RHR, 2011a). Roca
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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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