ML20216C800
| ML20216C800 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 03/11/1998 |
| From: | Wang A NRC (Affiliation Not Assigned) |
| To: | Olivier L BOSTON EDISON CO. |
| References | |
| TAC-M97271, NUDOCS 9803160180 | |
| Download: ML20216C800 (3) | |
Text
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'n UNITED STATES f
j NUCLEAR REZULATORY COMMISSION e
WASHINGTON, D.C. 20665 0001 e
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March 11, 1998 i
Mr. Leon J. Olivier Vice President-Nuclear / Station Director Boston Edison Company Pilgrim Nuclear Power Station RFD #1 Rocky Hill Road Plymouth, MA 02360
SUBJECT:
PILGRIM NUCLEAR POWER STATION (PILGRIM), IMPLEMENTATION OF LONG-TERM STABILITY SOLUTION ENHANCED OPTION lA (TAC NO.
M97271)
Reference 1: " Reactor Stability Long-Term Solution: Enhanced Option I-A, Revinion 1,"
NEDO-32339, General Electric Co. December 1996.
Dear Mr. Olivier-On November 7,1996, Boston Edison Company informed the staff that they plan to implement Enhanced Option I-A (E1 A) at their Pilgrim power plant without adding any new Technical Specifications (TS). Their proposal does not allow for planned operation in the restricted region.
Unplanned operation in the restricted region will be limited to the time it takes to either exit the region or shutdown the plant. This is controlled by TS 3.11.D (Power / Flow Relationship During Power Operation) which is currently being used at the plant.
Pilgrim will still install all of the E1 A hardware in accordance with the approved generic solution described in reference 1. The Flow Control Trip Reference (FCTR) card will control the restricted and exclusions regions by either signaling a rod block alarm or issuing a scram signal, respectively. These are the features of the solution which are designed to protect the Safety Limit Minimum Critical Power Ratio (SLMCPR) One design feature of the FCTR card that Pilgrim did nct address in the November 1996 letter is its ability to use one of two sets of trip reference functions. In a February 5,1998, confert.nce call Pilgrim committed to incorporate the alternative trip reference set points into the Core Operating Limits Report (COLR) and to administratively control their use. This is acceptable to the sta'f because the attemative trip reference set points are operating limits and can, therefore, be included in the COLR.
The Period Based Detection System (PBDS)is part of the solution designed to provide the operators with an indication of a reduction in the margin to instability and, as such, is a defense-in-depth feature. There is a proposed TS associated with the PBDS which is applicable to planned operation in the restricted region and operation, planned or unplanned, in the monitored region. Because Pilgrim will not intentionally operate in the restricted region, Pilgrim's proposal to administrative!y control the PBDS by adding a discussion ofits features and use to the plant FSAR is consistent with the intent of the PBDS implementation. Pilgrim will be installing the FCTR and PBDS cards as proposed in the approved design (ref.1). In conclusion, we have d
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L. Olivier 2
reviewed the proposal by Boston Edison Company to implement E1A at the Pilgrim power plant without adding any TSs and consider their proposal more restrictive than the approved solution described in reference 1, therefore, their proposed implementation meets the intent of Opuon 1 A.
If you have any questions regarding the implementation Option 1 A please call Alan Wang at (301)415-1445. We consider all work associated with TAC # 97271 complete.
Sincerely, Original signed by Alan B. Wang, Project Manager Project Directorate 1-3 Division of Reactor Projects -I/II Office of Nuclear Reactor Regulation Docket No. 50-293 cc: See next page Distribution:
Docket File <
PUBLIC Pilgrim R/F J. Zwolinski C. Thomas T. Clark A. Wang OGC ACRS C. Hehl DOCUMENT NAME: G:\\ PILGRIM \\M97271.LET To rec;ive a copy of this document, indicate in the box: "C" = Copy without attachment / enclosure "E" = Copy with tttichment/ enclosure "N" = No copy 0FFICE PDI 3/LA (. ///)
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DATE 03/ /U /98 03/\\i198 63////98 OFFICIAL RECORD COPY i
Mr. Leon J.'Olivier Boston Edison Company Pilgrim Nuclear Power Station cc:
Mr. Ron Ledgett :
Ms. Nancy Desmond Executive Vice President Manager, Reg. Affairs Dept 800 Boyleston Street Pilgrim Nuclear Power Statit.a Boston, MA 02199 RFD #1 Rocky Hill Road Plymouth, MA 02360 Resident inspector U. S. Nuclear Regulatory Commission Mr. David F. Tarantino Pilgrim Nuclear Power Station Nuclearinformation Manager Post Office Box 867 Pilgrim Nuclear Power Station Plymouth, MA 02360 RFD #1, Rocky Hill Road Plymouth, MA 02360 Chairman, Board of Selectmen 11 Lincoln Street Ms. Kathleen M. O'Toole Plymouth, MA 02360 Secretary of Public Safety Executive Office of Public Safety Chairman, Duxbury Board of Selectmen One Ashburton Place Town Hall Boston, MA 02108 878 Tremont Street Duxbury, MA 02332 Mr. Peter LaPorte, Director Attn: James Muckerheide Office of the Commissioner Massachusetts Emergency Management Massachusetts Department of Agency Environmental Protection 400 Worcester Road One Winter Street P.O. Box 1496 Boston, MA 02108 Framingham, MA 01701-0317 Office of the Attomey General Chairman, Citizens Urging One Ashburton Place Responsible Energy 20th Flocr P.O. Box 2621 Boston, MA 02108 Duxbury, MA 02531 Mr. Robert M. Hallisey, Director Citizens at Risk Radiation Control Program P.O. Box 3803 Massachusetts Department of Plymouth, MA 02361 Public Health 305 South Street W.S. Stowe, Esquire Boston, MA 02130 Boston Edison Company 800 Boyleston St.,36th Floor Regional Administrator, Region i Boston, MA 02199 U. S. Nuclear Regulatory Commission
'475 Allendale Road Chairman King of Prussia, PA 19406 Nuclear Matters Committee Town Hall Ms. Jane Fleming 11 Lincoln Street 8 Oceanwood Drive Plymouth, MA 02360 Duxbury, MA 0233 Mr. William D. Meinert Mr. Jeffery Keene Nuclear Engineer Licensing Division Manager Massachusetts Municipal Wholesale Boston Edison Company Electric Company 600 Rocky Hill Road P.O. Box 426 Plymouth, MA 02360 5599 Ludlow, MA 01056-0426