Environmental Impact Statement - radioactive monticello

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Environmental Impacts of Operation River (but not within Minnesota) during the past two decades (Chick 2002). These species can impact native species by destroying habitat, reducing water quality, and by consuming aquatic vegetation (grass carp) or planktonic organisms (silver and bighead carp) (USGS 2004). The silver and bighead carp have the potential to adversely affect every species of fish within the Upper Mississippi River (Chick 2002). These three carp species are moving towards Minnesota. The closest known populations are in the Iowa waters of the Mississippi River (MNDNR 2005b). The Higgins' eye pearlymussel is the only Federally listed aquatic species that is reported from the Mississippi River in the four-county area being considered for cumulative impacts. As mentioned in Section 2.2.5, past actions that have adversely affected this species have included siltation; impoundments; in-stream habitat disturbance; contaminants; pearl button and cultured pearl industries; and introduced species, particularly the zebra mussel (Dreissena polymorpha) (Hornbach 2004). As discussed in Section 4.6.1, existing Higgins' eye pearlymussel populations are too far removed from Monticello for plant operations to contribute to the cumulative impacts that are affecting this species. Additionally, entrainment, impingement, thermal discharges, and infrequent cold shock events have only a minimal localized impact on fish species that are suitable hosts for the glochidia of the Higgins' eye pearlymussel. The staff concludes that the potential cumulative impacts of the Monticello cooling system operations, including entrainment and impingement of fish and shellfish, heat shock, or any ofthe cooling system-related Category I issues (including cold shock) contributed by the continued operation of the facility will be SMALL and that no further mitigation measures are warranted. 4.8.2 Cumulative Impacts Resulting from Continued Operation of the Transmission Lines Continued operation of the electrical transmission facilities associated with renewal of the operating license for Monticello was evaluated to determine if there is the potential for interactions with other past,-present, and future actions that could result in adverse cumulative impacts to terrestrial resources (e.g., wildlife populations, the size and distribution of habitat areas), wetlands, floodplains, or aquatic resources. For the purposes of this analysis, the geographic area that encompasses the past, present, and foreseeable future actions that could contribute to adverse cumulative impacts includes .those Minnesota counties that contain the transmission lines associated with the Monticello site (Wright, Hennepin, Sherburne, and Anoka counties). The staff is unaware of any planned activities within the area of consideration that could potentially produce additional impacts in association with the continued operation of the transmission lines. The presence of transmission lines generally precludes further activities that could affect the environment. NUREG-1437, Supplement 26 4-46 August 2006 1
Environmental Impacts of Operation Therefore, the staff has determined that the cumulative impacts of the continued operation of the Monticello transmission lines are SMALL, and that no additional mitigation would be warranted. 4.8.3 Cumulative Radiological Impacts The radiological dose limits for protection of the public and workers have been developed by the EPA and NRC to address the cumulative impact of acute and long-term' exposure to radiation and radioactive material. These dose limits are codified in 40 CFR Part 190 and 10 CFR Part 20. For the purpose of this analysis, the area within a 50-mi radius of the Monticello site was included. The radiological environmental monitoring program (REMP) conducted by NMC in the vicinity of the Monticello site measures radiation and radioactive materials from all sources, including Monticello; therefore, the monitoring program measures cumulative radiological impacts. There are no other nuclear power plants within a 50-mi radius of Monticello. Monitoring results for the 5-year period from 1999 to 2004 were reviewed as part of the cumulative impacts assessment. Additionally, in Sections 2.2.7 and 4.3, the staff concluded that impacts of radiation exposure to the public and workers (occupational) from operation of Monticello during the renewal term are SMALL. The NRC and the State of Minnesota would regulate any future actions in the vicinity of the Monticello site that could contribute to cumulative radiological impacts. Therefore, the staff concludes that cumulative radiological impacts.of continued operations of Monticello are SMALL, and that no further mitigation measures are warranted. 4.8.4 Cumulative Socioeconomic Impacts The continued operation of Monticello is not likely to result in significant cumulative impacts for any of the socioeconomic impact measures assessed in Section 4.4 of this SEIS (public services, housing, and offsite land use). This is because operating expenditures, staffing levels, and local tax payments during renewal would be similar to those during the current license period. Similarly, the proposed action is not likely to result in significant cumulative impacts on historic and archaeological resources. When combined with the impact of other potential activities likely in the area surrounding the plant, socioeconomic impacts resulting from Monticello license renewal would not produce an incremental change in any of the impact measures used. The staff therefore determined that the impacts on employment, personal income, housing, local public services, utilities, and education occurring in the local socioeconomic environment as a result of license renewal activities, in addition to the impacts of other potential economic activity in the area, would be SMALL. The staff determined that the impact on offsite land use would be SMALL because no refurbishment activities are planned at Monticello, and no new incremental changes to plant-related tax payments are expected that could influence land use by fostering considerable growth. The impacts of license renewal on transportation and environmental justice would also August 2006 4 -47 NUREG-1 437, Supplement 26 1
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NUREG-1437 Supplement 26 Generic En
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Generic Environmental Impact Statem
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Abstract The U.S. Nuclear Regulator
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Contents Abstract........... ......
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Contents 4.8.7 Conclusions Regardin
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Figures Figure 2-1. Figure 2-2. Fig
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Contents Table 5-1. Category 1 Issu
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Executive Summary The Commission ha
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Executive Summary NMC and the staff
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0 degree pCi microcurie(s) pCi/mL m
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Abbreviations/Acronyms IPE IPEEE J
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Abbreviations/Acronyms rem REMP RHR
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Introduction and (4) present the st
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Introduction (1) The environmental
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Introduction I assessment of the re
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Introduction This definition of pur
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2.0 Description of Nuclear Power Pl
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Description of Site and Environment
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Descfiption of Site and Environment
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Table 2-10. Land Use in Sherburne C
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Environmental Impacts of Alternativ
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9.0 Summary and Conclusions By lett
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Summary and Conclusions The GElS co
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Summary and Conclusions not reached
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z a :m G) CA, Table 9-1. Summary of
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Summary and Conclusions U.S. Nuclea
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Appendix A: Comments Received on th
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Appendix A Commenter ID Commenter A
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Appendix A A.1 Comments and Respons
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Monticello Nuclear Generating Plant
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3. General Comments Regarding Licen
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Appendix A nuclear power (I) and Mo
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Appendix A scoping process. If an i
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Appendix A Comment: The NRC does no
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Appendix A Comment: The EIS needs t
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Appendix A Comment: The EIS needs t
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Appendix A cognitive impairment. We
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Appendix A Despite available eviden
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Appendix A Comment: The Hospital Di
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Appendix A Comment: The NRC also fa
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Appendix A The NRC fails to acknowl
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the coal chain What about all the s
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gasification generation balanced ag
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Appendix A 14. Comments Concerning
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Appendix A Part II Comments Receive
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Appendix A Table A-2. (contd) Comme
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Appendix A Table A-2. (contd) Comme
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Appendix A A.2.4 General Comments i
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Appendix A Comment: Page 2-7, Line
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Appendix A turns out that we don't
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Appendix A A.2.12 Comments Concerni
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Appendix A Response: As described a
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information in the Final SEIS as pa
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Appendix A Response: The impacts to
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Appendix A Response: The text in Se
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aging management aspects of the lic
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Appendix A A-2 PURVES TODD: Just ba
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Appendix A PURVES TODD: Thank you v
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Appendix A So you don't look for wh
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Appendix A Yes CHUCK HOSTOVSKY: I t
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Appendix A information a little bit
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Appendix A Return-path: Received:
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Appendix A tAY-W8-2006 11! 07 'ENCL
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Appendix A ta W.Y United States Dep
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Appendix A MAY-17-206 13:11 P.04 U.
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Appendix A IMAY-17-20O6 13:12 P.06
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Appendix B Contributors to the Supp
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Appendix B Name Karen McWilliams Na
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Appendix C: Chronology of NRC Staff
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Appendix C May 27, 2005 May 27, 200
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Appendix C June 1,2005 June 2, 2005
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Appendix C January 23, 2006 Februar
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Appendix D Organizations Contacted
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Appendix D Wright County Assessor,
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Appendix E: Nuclear Management Comp
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Cn N0 Table E-2. (contd) Expiration
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Appendix E UNITED STATES -" NUCLEAR
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Appendix E N. Archabal -2- potentia
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Appendix E D. Stinnett -2- miles of
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Appendix E FIGURE 2.1-3 SITE BOUNDA
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Appendix E Common Name Scientific N
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Appendix E A. Stinnet : -2- ' !We a
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Appendix E 1.0 Introdution. The U.S
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Appendix E 6-M.LE SITE VICINITY Fig
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Appendix E agriculture and industri
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Appendix E -" .. " MWNTICELLO 345-K
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Appendix E Table 2. Terrestrial and
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Appendix E During the June 2005 sit
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Appendix E Vegetation management ma
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Appendix E Lehman, R.N. 2001. Rapto
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Appendix E MAY-31-206 15:31 P.02 MI
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Appendix F GElS Environmental Issue
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Appendix F References 10 CFR Part 5
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Appendix G: NRC Staff Evaluation of
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Appendix G Table G-1. Monticello Co
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Appendix G * The MACCS2 analyses pe
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Appendix G relative risk significan
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" Permanently posting an operator a
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Appendix G accident sequences to em
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Appendix G The staff noted that the
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Appendix G (testing of the boron in
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somewhat higher than what would act
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C Cn N, a) % Risk Reduction Total B
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Appendix G G.6 Cost-Benefit Compari
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Appendix G monetary equivalent of u
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Appendix G * SAMA 16- provide passi
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Appendix G several other SAMAs, res
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Appendix G Generating Plant, Docket
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NRC FORM 335 U.S. NUCLEAR REGULATOR
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