Environmental Impact Statement - radioactive monticello

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Description of Site and Environment Table 2-1. Monticello Transmission Line Rights-of-Way No. of Approximate Corridor Corridor Substation Lines kV Distance (mi) Corridor Width (ft) Area (ac) Sherburne 1 345 43 Monticello-Coon Varies from 750 County Creek 125 to 240 Elm Creek 1 345 37 Monticello- Varies from 957 Parkers Lake 165 to 240 Source: Xcel Energy 2005a Major portions of both corridors pass through rural areas, utilizing railroad rights-of-way and highways where possible. The Monticello-Coon Creek corridor is predominantly cultivated fields with scattered forests and some wetlands. The Monticello-Parkers Lake corridor is a mix of agriculture, rural residential, scattered forests, and wetlands (NMC 2005a). Vegetation control within the transmission line corridors is performed every four years to ensure the continued reliability of the lines. Vegetation control includes removing or trimming woody vegetation to ensure adequate line clearance and to allow vehicle access along the corridor. Qualified line-clearance tree trimmers manually cut and prune using approved mechanical equipment and perform selective application of approved herbicides to remove all tall-growing trees and brush from the complete width of the corridor (Xcel Energy 2005b). 2.2 Plant Interaction with the Environment Sections 2.2.1 through 2.2.8 provide general descriptions of the environment near Monticello as background information. They also provide detailed descriptions where needed to support the analysis of potential environmental impacts of refurbishment and operation during the renewal term, as discussed in Chapters 3 and 4. Section 2.2.9 describes the historic and archaeological resources in the area, and Section 2.2.10 describes possible impacts associated with other Federal project activities. 2.2.1 Land Use The Monticello site is located in the City of Monticello, Wright County, Minnesota, on the southern bank of the Mississippi River. The nearest large city is St. Cloud, 22 mi northwest and upstream of the Monticello site. The Twin Cities area of Minneapolis/St. Paul, and its surrounding suburbs, is approximately 30 mi southeast and downstream of the site. This is the largest urban area within 50 mi of the site exerting a strong influence on the region as the surrounding cities and townships respond to the Twin City area's demand for suburban development. NUREG-1437, Supplement 26 2-14 August 2006 1
Description of Site and Environment The Monticello site is located in an upland region of gently rolling hills dominated by rivers, streams, and lakes. The site consists of approximately 2150 ac, with roughly 2 mi of frontage on the north and south banks of the Mississippi River in Wright and Sherburne Counties. The majority of the acreage is located on the southern side of the river, with approximately 450 ac on the northern side of the river. Approximately 50 ac are occupied by the plant and its supporting facilities. The remaining acres are undeveloped, with approximately 174 ac leased by local farmers for growing row crops, and 144 ac under lease for recreational use (NMC 2005a). 2.2.2 Water Use Monticello draws water from the Mississippi River for plant condenser cooling and auxiliary water systems, such as service water cooling, intake screen wash, and fire protection. Under typical river conditions, the circulating water system removes heat from the Monticello condenser by the once-through circulating water system. Under certain discharge canal temperature, river temperature, and river flow conditions, the circulating water system can utilize the two mechanical draft cooling towers in partial or complete recirculation of the cooling water in compliance with permit limits. The operating modes for the circulating water system are required by the National Pollutant Discharge Elimination System (NPDES) permit discharge * limits and the Surface Water Appropriations Permit. The Surface Water Appropriations Permit allows NMC to withdraw up to 645 cfs (or 290,000 gpm) of water from the Mississippi River, with special operating conditions if the river flow is less than 860 cfs, and further restrictions if river flow is 240 cfs or less (see Table 2-2). The NPDES permit specifies maximum daily average temperature at the end of the discharge canal depending on the month: 95°F in April through October; 85 0 F in November and March; and 80°F in December through February. The operating modes and conditions are summarized in Table 2-2. Five groundwater wells provide domestic water for potable use, including drinking water, lavatories, and showers at the plant, and raw water to the reverse osmosis/make-up demineralizer system which is used to produce purified water for the plant primary systems and seal water to pumps located at the intake structure. Two wells, each equipped with a 1 00-gpm capacity pump, are connected together and are regulated under a single water appropriations permit with a withdrawal limit of 200 gpm. From 1998 to 2000, actual usage averaged less than 30 gpm. These two wells provide domestic potable water to the plant administration building, raw water to the reverse osmosis/make-up demineralizer system, and seal water to pumps at the plant intake structure. Two other wells, each equipped with a 45-gpm pump, provide additional domestic water to a warehouse and the site administration building. The fifth well, equipped with a 1 0-gpm pump, provides domestic water to a security training facility. Annual usage for these wells is less than 1.9 gpm, for which water appropriation permits are not required. August 2006 2-15 NUREG-1437, Supplement 26 I
Page 1 and 2: NUREG-1437 Supplement 26 Generic En
Page 3 and 4: Generic Environmental Impact Statem
Page 5 and 6: Abstract The U.S. Nuclear Regulator
Page 7 and 8: Contents Abstract........... ......
Page 9 and 10: Contents 4.8.7 Conclusions Regardin
Page 11 and 12: Figures Figure 2-1. Figure 2-2. Fig
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Page 16 and 17: Executive Summary The Commission ha
Page 18 and 19: Executive Summary NMC and the staff
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Page 30 and 31: Introduction (1) The environmental
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Environmental Impacts of Operation
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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 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 During the June 2005 sit
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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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Environmental Impact Statement - radioactive monticello

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