ML050400610
| ML050400610 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 02/28/2005 |
| From: | Mozafari B NRC/NRR/DLPM/LPD2 |
| To: | Gannon C Carolina Power & Light Co |
| mozafari B, NRR/DLPM, 415-2020 | |
| References | |
| 10 CFR 50.54(o), TAC MC4879, TAC MC4880 | |
| Download: ML050400610 (7) | |
Text
February 28, 2005 Mr. C. J. Gannon Vice President Brunswick Steam Electric Plant Carolina Power & Light Company Post Office Box 10429 Southport, North Carolina 28461
SUBJECT:
BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS. 1 AND 2 -
ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT RELATED TO THE ISSUANCE OF EXEMPTION TO 10 CFR PART 50, APPENDIX J (TAC NOS. MC4879 AND MC4880)
Dear Mr. Gannon:
Enclosed is a copy of the Environmental Assessment and Finding of No Significant Impact related to your application for exemption from certain requirements of Title 10 of the Code of Federal Regulations, Section 50.54(o), dated October 6, 2004. The proposed exemption would exempt the Carolina Power & Light Company (doing business as Progress Energy Carolinas, Inc.) from requirements to include main steam isolation valve leakage in the overall integrated leakage rate test measurement required by Section III. A of Appendix J, Option B.
The assessment is being forwarded to the Office of the Federal Register for publication.
Sincerely,
/RA/
Brenda L. Mozafari, Senior Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-325 and 50-324
Enclosure:
Environmental Assessment cc w/encl: See next page
ML050400610 *No Legal Objections NRR-042 OFFICE PDII-2/PM PDII-2/LA RLEP OGC* PDII-2/SC NAME BMozafari EDunnington AKugler DReddick MMarshall DATE 02/15/05 02/14/05 02/22/05 02/25/05 02/28/05 7590-01-P UNITED STATES NUCLEAR REGULATORY COMMISSION CAROLINA POWER & LIGHT COMPANY DOCKET NOS. 50-325 AND 50-324 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS. 1 AND 2 ENVIRONMENTAL ASSESSMENT AND FINDING OF NO SIGNIFICANT IMPACT INTRODUCTION The U.S. Nuclear Regulatory Commission (NRC) is considering issuance of an exemption from 10 CFR Part 50, Appendix J for Facility Operating Licenses Nos. DPR-71 and DPR-62 issued to the Carolina Power & Light Company (the licensee, also doing business as Progress Energy Carolinas, Inc.) for operation of the Brunswick Steam Electric Plant, Unit Nos.
1 and 2 located in Brunswick County, North Carolina.
ENVIRONMENTAL ASSESSMENT Identification of the Proposed Action:
The proposed action would exempt the licensee from requirements to include main steam isolation valve (MSIV) leakage in the overall integrated leakage rate test measurement required by Section III.A of Appendix J, Option B.
The proposed action is in accordance with the licensee's application dated October 6, 2004, for exemption from certain requirements of Title 10 of the Code of Federal Regulations (10 CFR), Part 50, Appendix J.
The Need for the Proposed Action:
Section 50.54(o) of 10 CFR Part 50 requires that primary reactor containments for water-cooled power reactors be subject to the requirements of Appendix J to 10 CFR Part 50.
Appendix J specifies the leakage test requirements, schedules, and acceptance criteria for
tests of the leaktight integrity of the primary reactor containment and systems and components that penetrate the containment. Option B,Section III.A requires that the overall integrated leak rate must not exceed the allowable leakage (La) with margin, as specified in the Technical Specifications (TS). The overall integrated leak rate, as specified in the 10 CFR Part 50, Appendix J definitions, includes the contribution from MSIV leakage. By letter dated October 6, 2004, the licensee has requested an exemption from Option B,Section III.A requirements to permit exclusion of MSIV leakage from the overall integrated leak rate test measurement.
The above-cited requirement of Appendix J requires that MSIV leakage measurements be grouped with the leakage measurements of other containment penetrations when containment leakage tests are performed. These requirements are inconsistent with the design of the Brunswick facilities and the analytical models used to calculate the radiological consequences of design-basis accidents. At Brunswick and similar facilities, the leakage from primary containment penetrations under accident conditions is collected and treated by the secondary containment system or would bypass the secondary containment. However, the leakage from MSIVs is collected and treated via an Alternative Leakage Treatment (ALT) path having different mitigation characteristics. In performing accident analyses, it is appropriate to group various leakage effluents according to the treatment they receive before being released to the environment, i.e., bypass leakage is grouped, leakage into secondary containment is grouped, and ALT leakage is grouped, with specific limits for each group defined in the TS.
The proposed exemption would permit ALT path leakage to be independently grouped with its unique leakage limits.
Environmental Impacts of the Proposed Action:
The proposed action will not significantly increase the probability or consequences of accidents. The NRC staff has completed its evaluation of the proposed action and finds that the proposed exemption involves no increase in the total amount of radioactive effluent that
may be released off site in the event of a design-basis accident. Therefore, the calculated doses remain within the acceptance criteria of 10 CFR Part 100 and Standard Review Plan Section 15, and there is no significant increase in occupational or public radiation exposure.
The NRC staff thus concludes that granting the proposed exemption would result in no significant radiological environmental impact.
The proposed action does not affect non-radiological plant effluents or historical sites and has no other environmental impact. Therefore, there are no significant non-radiological impacts associated with the proposed exemption.
Accordingly, the NRC concludes that there are no significant environmental impacts associated with the proposed action.
Alternative to the Proposed Action:
As an alternative to the proposed action, the staff considered denial of the proposed action (i.e., the "no action" alternative). Denial of the exemption would result in no change in current environmental impacts. The environmental impacts of the proposed action and the alternative action are similar.
Alternative Use of Resources:
This action does not involve the use of any resources not previously considered in the Final Environmental Statement dated January 1974 for the Brunswick Steam Electric Plant, Unit Nos. 1 and 2.
Agencies and Persons Consulted:
In accordance with its stated policy, on March 1, 2005, the NRC staff consulted with the North Carolina State official, Ms. Wendy Tingle of the North Carolina Department of Environmental and Natural Resources, Division of Radiation Protection, regarding the environmental impact of the proposed action. Ms. Tingle had no comments.
FINDING OF NO SIGNIFICANT IMPACT
On the basis of the environmental assessment, the NRC concludes that the proposed action will not have a significant effect on the quality of the human environment. Accordingly, the NRC has determined not to prepare an environmental impact statement for the proposed action.
For further details with respect to the proposed action, see the licensees letter dated October 6, 2004. Documents may be examined, and/or copied for a fee, at the NRCs Public Document Room (PDR), located at One White Flint North, Public File Area O1F21, 11555 Rockville Pike (first floor), Rockville, Maryland. Publicly available records will be accessible electronically from the Agencywide Documents Access and Management System (ADAMS)
Public Electronic Reading Room on the Internet at the NRC Web site, http://www.nrc.gov/reading-rm/adams.html. Persons who do not have access to ADAMS or who encounter problems in accessing the documents located in ADAMS, should contact the NRC PDR Reference staff by telephone at 1-800-397-4209 or 301-415-4737, or by e-mail to pdr@nrc.gov.
Dated at Rockville, Maryland, this 28th day of February, 2005 FOR THE NUCLEAR REGULATORY COMMISSION
/RA/
Brenda L. Mozafari, Senior Project Manager, Section 2 Project Directorate II Division of Licensing Project Management Office of Nuclear Reactor Regulation
Mr. C. J. Gannon Brunswick Steam Electric Plant Carolina Power & Light Company Units 1 and 2 cc:
David T. Conley Mr. Robert P. Gruber Associate General Counsel II - Executive Director Legal Department Public Staff - NCUC Progress Energy Service Company, LLC 4326 Mail Service Center Post Office Box 1551 Raleigh, North Carolina 27699-4326 Raleigh, North Carolina 27602-1551 Mr. T. P. Cleary Mr. David R. Sandifer, Chairperson Director - Site Operations Brunswick County Board of Commissioners Brunswick Steam Electric Plant Post Office Box 249 Carolina Power & Light Company Bolivia, North Carolina 28422 Post Office Box 10429 Southport, North Carolina 28461-0429 Resident Inspector U. S. Nuclear Regulatory Commission Mr. Norman R. Holden, Mayor 8470 River Road City of Southport Southport, North Carolina 28461 201 East Moore Street Southport, North Carolina 28461 Mr. John H. ONeill, Jr.
Shaw, Pittman, Potts & Trowbridge Mr. Warren Lee 2300 N Street NW. Emergency Management Director Washington, DC 20037-1128 New Hanover County Department of Emergency Management Ms. Beverly Hall, Section Chief Post Office Box 1525 Division of Radiation Protection Wilmington, North Carolina 28402-1525 N.C. Department of Environment and Natural Resources Mr. Chris L. Burton, Manager 3825 Barrett Dr. Performance Evaluation and Raleigh, North Carolina 27609-7721 Regulatory Affairs PEB 7 Progress Energy Mr. David H. Hinds Post Office Box 1551 Plant General Manager Raleigh, North Carolina 27602-1551 Brunswick Steam Electric Plant Carolina Power & Light Company Mr. Edward T. ONeil Post Office Box 10429 Manager - Support Services Southport, North Carolina 28461-0429 Brunswick Steam Electric Plant Carolina Power & Light Company Public Service Commission Post Office Box 10429 State of South Carolina Southport, North Carolina 28461 Post Office Drawer 11649 Columbia, South Carolina 29211 Mr. Heinz Mueller (5 copies)
Environmental Review Coordinator Ms. Margaret A. Force US EPA Region 4 Assistant Attorney General 61 Forsyth Street, SW State of North Carolina Atlanta, Georgia 30303-3104 Post Office Box 629 Raleigh, North Carolina 27602