Environmental Impact Statement - radioactive monticello

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Description of Site and Environment Natural surface drainage of the Monticello site is generally to the southwest at a 2- to 3-percent grade away from the Mississippi River. The land cover of the site is predominated by formerly cultivated fields in various stages of ecological succession (NMC 2005a). 2.1.2 Reactor Systems Monticello is a single-unit electric generating plant. The unit is a single-cycle, forced circulation, low-power density boiling water reactor. General Electric Company designed and supplied the nuclear steam supply system, the initial reactor fuel, and the turbine-generator unit and its related systems. Monticello was designed for operation at power levels up to 1670 megawatts thermal (MW[t]) and an electrical output of up to 545 megawatts electric (MW[e]) (AEC 1972). However, an uprate license amendment was submitted and subsequently approved by the Nuclear Regulatory Commission (NRC) on January 21, 1998 (NRC 1998). The current rated thermal power level for the unit is 1775 MW(t) and 600 MW(e). The Monticello facility is depicted in Figure 2-3. The reactor containment structure consists of a drywell, which encloses the reactor vessel and recirculation pumps; a pressure suppression. chamber, which stores a large volume of water; a connecting vent system between the drywell and the suppression chamber; and isolation valves. The concrete reactor building serves as a radiation shield and fulfills a secondary containment function. The reactor building is maintained under a slight negative pressure, with the building exhaust monitored prior to release to the atmosphere through the reactor building ventilation exhaust stack. The containment for the unit is designed to withstand an internal pressure of 56 pounds per square inch above atmospheric pressure (NMC 2005b). Monticello uses low-enriched uranium dioxide fuel with enrichments below 5.0 percent by weight uranium-235, with peak fuel-rod burn-up levels less than 62,000 megawatt-days per metric ton uranium (MWd/MTU) (NMC 2005c). 2.1.3 Cooling and Auxiliary Water Systems The Mississippi River is the source of water at Monticello for plant condenser cooling and some auxiliary water systems, such as service water cooling, screen wash, and fire protection. Five groundwater wells provide water for other auxiliary systems, such as water for the reverse osmosis/make-up demineralizer system used to produce purified water for the plant primary systems and seal water to pumps located at the intake structure. Groundwater is also used for domestic potable use, including drinking water, lavatories, and showers at the plant. Figure 2-4 shows the locations of the two induced-draft cooling towers and the discharge canal. NUREG-1437, Supplement 26 2-4 AUgust 2006 1
Description of Site and Environment shwutno cc"fl - --- -- - - - - - - - - - - ......... CeaI f 12M SOW.N t2W'Ss.lkE14 - ROOD&~ -. Pry 4 Pbeft - - -y Rooft ...... inROedS - Onshe. Roads W Onnm Co~dmled Fw~ WSW + PrOPuw Bowdety kfteimadiat Bwr*~ Fenoo $00 0 600120016002400 F*W 200 0 200 400 PW~s, Figure 2-3. Monticello Site Powerblock Area August 2006 2-5 NUREG-1437, Supplement 26 1
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
Page 13: Contents Table 5-1. Category 1 Issu
Page 16 and 17: Executive Summary The Commission ha
Page 18 and 19: Executive Summary NMC and the staff
Page 21 and 22: 0 degree pCi microcurie(s) pCi/mL m
Page 23 and 24: Abbreviations/Acronyms IPE IPEEE J
Page 25: Abbreviations/Acronyms rem REMP RHR
Page 28 and 29: Introduction and (4) present the st
Page 30 and 31: Introduction (1) The environmental
Page 32 and 33: Introduction I assessment of the re
Page 34 and 35: Introduction This definition of pur
Page 37 and 38: 2.0 Description of Nuclear Power Pl
Page 39: Description of Site and Environment
Page 43 and 44: Description of Site and Environment
Page 67 and 68: Descfiption of Site and Environment
Page 71 and 72: Table 2-10. Land Use in Sherburne C
Page 87: Description of Site and Environment
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Environmental Impacts of Refurbishm
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Environmental Impacts of Refurbishm
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Environmental Impacts of Operation
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Environmental Impacts of Postulated
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Environmental Impacts of the Uraniu
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Environmental Impacts of Decommissi
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Environmental Impacts of Decommissi
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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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