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7 December 2006


[Federal Register: December 7, 2006 (Volume 71, Number 235)]

[Notices]               

[Page 71023-71024]

From the Federal Register Online via GPO Access [wais.access.gpo.gov]

[DOCID:fr07de06-113]                         



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TENNESSEE VALLEY AUTHORITY



 

Supplemental Environmental Impact Statement: Completion of Watts 

Bar Nuclear Plant Unit 2



AGENCY: Tennessee Valley Authority.



ACTION: Notice of Intent.



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SUMMARY: This notice is provided in accordance with the Council on 

Environmental Quality's (CEQ) regulations (40 CFR parts 1500-1508) and 

TVA's procedures for implementing the National Environmental Policy 

Act. The Tennessee Valley Authority (TVA) will prepare a Supplemental 

Environmental Impact Statement (EIS) to update information and address 

the potential environmental impacts associated with its proposal to 

complete the Watts Bar Nuclear Plant (WBN) Unit 2 located in Rhea 

County, Tennessee [Google Aerial]. Completion of WBN Unit 2 would help address the need 

for additional baseload generation in the power service area of the 

Tennessee Valley Authority and make use of that unfinished asset.



DATES:  Comments on the draft Supplemental EIS will be invited from the 

public. It is anticipated that the draft Supplemental EIS will be 

available in the spring of 2007.



ADDRESSES: Information about the Supplemental EIS process can be 

obtained by contacting Bruce L. Yeager, NEPA Program Manager, NEPA 

Policy, Environmental Stewardship and Policy, Tennessee Valley 

Authority, 400 West Summit Hill Drive, Mail Stop WT 11B-K, Knoxville, 

Tennessee 37902 (e-mail: blyeager@tva.gov).



FOR FURTHER INFORMATION CONTACT: James Chardos, Project Manager, 

Nuclear Generation Development at Tennessee Valley Authority, Mail Stop 

ADM 1V-WBN, Chattanooga, Tennessee 37402 (e-mail: jschardos@tva.gov).



SUPPLEMENTARY INFORMATION: TVA operates the largest public power system 

in the country. It provides electricity to more than 8.5 million people 

in parts of seven southeastern states. It also serves 650,000 

businesses and industries in this region, including 61 large industrial 

and federal facilities. TVA currently has 33,000 megawatts of 

dependable generating capacity on its system. This capacity consists of 

three nuclear plants, 11 coal-fired plants, six combustion-turbine 

plants, 29 hydroelectric dams, one pump-storage facility, the 

southeast's largest wind turbine installation, and one methane-gas 

capture facility. Slightly more than 60 percent of TVA's installed 

generating capacity is coal, almost 30 percent is nuclear, and the 

remaining 10 percent is hydro and other renewable energy resources and 

combustion turbines.

    Demand for electricity in the TVA Power Service Area is growing at 

the rate of approximately 2 percent per year. In 2005, demand for 

electricity from the TVA system exceeded the previous all-time high 

demand (peak demand) on the system twice. To meet this growing demand 

TVA anticipates having to add additional baseload capacity to its 

system by no later than the 2012-2014 timeframe. Completing TVA's 

partially-constructed WBN Unit 2 would not only help meet this growing 

need for generation but also make use of that unfinished asset. TVA is 

further supplementing the original 1972 Environmental Statement for the 

plant and updating pertinent information discussed and evaluated in the 

related documents identified below to inform decision makers about the 

potential for environmental impacts that would be associated with a 

decision to complete and operate WBN Unit 2. On July 28, 2006, the TVA 

Board of Directors also authorized staff to conduct a comprehensive 

Detailed, Scoping, Estimating and Planning (DSEP) study to evaluate the 

cost and schedule for completing WBN Unit 2.

    WBN is located on 1,700 acres at the northern end of Chickamauga 

Reservoir about 8 miles from Spring City, Tennessee. The Atomic Energy 

Commission (AEC) issued construction permits (now the responsibility of 

the Nuclear Regulatory Commission (NRC)) for the two-unit, 2,540 MW 

plant in January of 1973. In 1985, TVA halted construction activities 

for WBN in order to address safety concerns. Due to these construction 

delays, WBN Unit 1 did not begin commercial operation until May 1996. 

The plant currently has one Westinghouse pressurized-water reactor with 

a capacity of 1,167 megawatts--enough electricity to supply about 

650,000 homes a day. WBN Unit 2 was approximately 60 percent complete 

when construction was halted in 1985.



Summary of Relevant Environmental Reviews



    In 1972, TVA released a Final EIS that reviewed the potential 

environmental and socioeconomic impacts of constructing and operating 

the two-unit plant (WBN Units 1 and 2). TVA updated the WBN EIS in 

November 1976 and submitted additional environmental information and 

analyses to NRC in an Environmental Information Supplement in 1977. In 

December of 1978, NRC issued its Final EIS, NUREG-0498 related to the 

licensing of the two-unit plant.

    In 1993, TVA conducted a thorough review of the TVA and NRC 

documents to determine if additional environmental review was needed to 

inform decisions about whether or not to complete WBN Units 1 and 2. 

The 1993 TVA review, focusing on ten sections of the earlier documents, 

concluded that neither the plant design nor environmental conditions 

had changed in a manner that materially altered the environmental 

impact analysis set forth in the earlier EIS. In 1994, TVA provided 

additional analyses and information in support of NRC's issuance of a 

Supplemental EIS. That Supplemental EIS, issued by NRC in 1995, 

similarly concluded that there were no significant changes in the 

potential environmental impacts of WBN 1 and 2 since the 1978 Final 

Environmental Statement issued by the NRC. Following independent review 

of the adequacy of the analyses and document, in July of 1995 TVA 

adopted the 1995 NRC final Supplemental EIS for the completion of WBN 

Unit 1. In



[[Page 71024]]



August 1995, TVA issued a ROD stating the agency decision to complete 

WBN Unit 1. In 1998, TVA prepared an Environmental Assessment (EA) and 

Finding of No Significant Impact (FONSI) for a project to provide 

supplemental condenser cooling water to WBN for the purpose of 

increasing power generation from Unit 1 that was constrained by cooling 

tower performance.

    TVA participated as a cooperating agency with the Department of 

Energy (DOE) on an environmental review evaluating the production of 

tritium at one or more commercial light water reactors (CLWRs) to 

ensure safe and reliable tritium supply for U.S. defense needs. In 

March 1999, the Secretary of the DOE designated the TVA Watts Bar and 

Sequoyah Nuclear Plants as the Preferred Alternative for CLWR tritium 

production in the CLWR EIS. DOE issued its Record of Decision (ROD) in 

May of 1999. TVA subsequently issued its own Notice of Adoption and ROD 

for the Final EIS in May of 2000. Tritium production subsequently began 

at WBN Unit 1 in 2003. TVA's proposed completion and operation of WBN 

Unit 2 does not include provision for tritium production, however 

pertinent information on spent nuclear fuel management is included in 

the CLWR EIS. As appropriate, TVA intends to incorporate, utilize, and 

update information from these earlier plant-specific analyses for the 

present Supplemental EIS.

    In December 1995, TVA also completed a comprehensive environmental 

review of alternative means of meeting demand for power on the TVA 

system through the year 2020. This review was in the form of a Final 

EIS titled the Integrated Resource Plan --Energy Vision 2020. 

Completion of WBN Unit 2 was evaluated in this Final EIS. To address 

future demand for electricity, TVA decided to rely on a portfolio of 

energy resource options, including new generation and conservation. 

Because of uncertainties about performance and cost, completion of WBN 

Unit 2 was not included in the portfolio of resource options. In the 

Integrated Resource Plan, TVA made conservative assumptions about the 

capacity factor (roughly how much a unit would be able to run) nuclear 

units generally would achieve and this capacity factor was used in 

conducting the economic analyses of nuclear resource options. TVA 

nuclear units, consistent with U.S. nuclear industry performance, now 

routinely exceed this earlier assumed capacity factor, which changes 

the earlier analyses and will be taken into account in the current 

consideration of completing WBN Unit 2.

    In February of 2004, TVA issued a Final EIS for its Reservoir 

Operations Study (ROS) evaluating the potential environmental impacts 

of alternative ways for operating the agency's reservoir system to 

produce overall greater public value for the people of the Tennessee 

Valley. That Final EIS review included provision of adequate water 

supply for reliable, efficient operation of TVA generating facilities, 

such as WBN, within their operating limits of National Pollutant 

Discharge Elimination System (NPDES) and other permits. A ROD for the 

ROS Final EIS was subsequently issued in May of 2004.

    TVA will incorporate assumptions for reservoir operations resulting 

from the ROS Final EIS review in the present evaluation.



Proposed Action and Need for Power



    The proposal under consideration by TVA is to meet the demand for 

additional baseload capacity on the TVA system and maximize the use of 

existing assets by completing and operating WBN Unit 2 alongside its 

sister unit, WBN Unit 1 that has been operating since 1996. The 

environmental impacts of other energy resource options were evaluated 

as part of TVA's Energy Vision 2020 Final EIS. As part of the present 

supplemental environmental review, TVA will update the Need for Power 

analysis, as well as consider any new environmental information.



Preliminary Identification of Environmental Issues



    This Supplemental EIS will discuss the need to complete WBN Unit 2 

and will update information on existing environmental, cultural, 

recreational, and socioeconomic resources, as appropriate. The 

Supplemental EIS will also update the analysis of potential 

environmental impacts resulting from construction, operation, and 

maintenance of WBN Unit 2, and the total impacts occurring with 

concurrent operation of WBN Unit 1. The update of potential 

environmental impacts will include, but not necessarily be limited to, 

the potential impacts on water quality, vegetation, wildlife, aquatic 

ecology, endangered and threatened species, floodplains, wetlands, land 

use, cultural and historic resources, socioeconomics, spent fuel 

management, and radiological impacts, as well as an analysis of severe 

accident mitigation alternatives. Information from TVA's and NRC's 

previous environmental reviews (described above) that is relevant to 

the current assessment would be incorporated by reference and 

appropriately summarized in the Supplemental EIS.



Public and Agency Participation



    This Supplemental EIS is being prepared to update information and 

to inform decision-makers and the public about the potential 

environmental impacts of completing and operating WBN Unit 2. The 

Supplemental EIS process also will provide the public an opportunity to 

comment on TVA's analyses. Other federal, state, and local agencies and 

governmental entities will be asked to comment, including the U.S. Army 

Corps of Engineers, U.S. Fish and Wildlife Service, and the Tennessee 

Department of Environmental and Conservation.

    TVA will invite the public and agencies to submit written, verbal 

or e-mail comments on the draft Supplemental EIS. It is anticipated the 

draft Supplemental EIS will be released in the spring of 2007. Notice 

of availability of the Supplemental EIS will be published in the 

Federal Register, as well as announced in local news media. TVA expects 

to release a final Supplemental EIS in the summer of 2007.



    Dated: November 28, 2006.

Kathryn J. Jackson,

Executive Vice President, River System Operations & Environment.

 [FR Doc. E6-20761 Filed 12-6-06; 8:45 am]



BILLING CODE 8120-08-P