ML20206E055
| ML20206E055 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 04/29/1999 |
| From: | Wang A NRC (Affiliation Not Assigned) |
| To: | Ted Sullivan BOSTON EDISON CO. |
| References | |
| IEB-96-003, IEB-96-3, TAC-M96163, NUDOCS 9905040324 | |
| Download: ML20206E055 (5) | |
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UNITED STATES g
g-NUCLEAR REGULATORY COMMISSION WASHINGTON, D.c. 20555-0001 g
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April 29, 1999 i
Mr. Theodore A. Sullivan Vice President Nuclear and Station Director Boston Edison Company Pilgrim Nuclear Power Station RFD #1 Rocky Hill Road Plymouth, MA 02360
SUBJECT:
COMPLETION OF LICENSING ACTION FOR 96-03," POTENTIAL PLUGGING OF EMERGENCY CORE COOLING SUCTION STRAINERS BY DEBRIS IN 4
BOILING-WATER REACTORS," DATED MAY 6,1996; PILGRIM NUCLEAR POWER STATION (TAC NO. M96163)
Dear Mr. Sullivan:
On May 6,1996, the U.S. Nuclear Regulatory Commission (NRC) issued Bulletin (BL) 96-03,
" Potential Plugging of Emergency Core Cooling Suction Strainers by Debris in Boiling-Water Reactors," to all holders of operating licenses or construction permits for boiling-water reactors
' (BWRs). The NRC issued BL 96-03 to ensure that the emergency core cooling systems (ECCS) in BWRs can perform their intended safety function to mitigate the effects of a postulated loss-of-coolant accident (LOCA). The BL provided three options for resolving this issue including (1) installaticn of large capacity passive strainers, (2) installation of self-cleaning strainers, or (3) installation of a backflush system.
In BL 96-03, the NRC staff specifically requested that Boston Edison Company (BECo/hcensee) submit the following reports for their facility:
- 1. A description of planned actions and mitigative strategies to be used, the schedule for implementation, and proposed technical specification, if appropriate.
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- 2. A report confirming completion and summarizing actions taken.
In response to BL 96-03, BECo provided information by letters dated November 1,1996, February 7,1997, December 30,1998, January 21, and March 9,1999, for the Pilgrim Nuclear Power Statum. BECo stated that they have installed large capacity passive strainers which h(D) were designed using the guidance in the Boiling Water Reactors Owners Group Utility Resolution Guidance (URG). The NRC staff reviewed the URG and issued a safety evaluation on August 20,1998. By letter dated March 9,1999, BECo informed the staff that they had cc,T-;rd all schons requested by the BL. These actions included: installing strainers, modified foreign materials exclusion (FME) program, implemented suppression pool cleaning /inspechon program, received interim credit for the use of containment overpressure in ECCS not positive suction head calculations and requested approval for additional credit for the use of containment overpressure in ECCS NPSH calculations.
9905040324 990429 PDR ADOCK 05000293 G
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1 T. Sullivan The staff has reviewed BECo's responses and has determined that the actions taken should minimize the potential for clogging of ECCS suction strainers and ensure the capability of the ECCS to provide long-term cooling following a LOCA as required by 10 CFR 50.46. The staff considers BECo's actions responsive to the concems raised in BL 96-03. Therefore, BL 96-03 is closed for your facility. Detailed reviews of your strainer design and 10 CFR 50.59 evaluation may be performed on a plant-specific basis in the future.
If you have sny questions regarding this matter, please contact Alan Wang at (301) 415-1445.
Sincerely,
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L,Wh t VU S it Alan B. Wang, Project' Manager, Section 2 Project Directorate i Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket No. 50-293 cc: See next page i-
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4 T. Sullivan The staff has reviewed BECo's responses and has determined that the actions taken should minimize the potential for clogging of ECCS suction strainers and ensure the capability of the ECCS to provide long-term cooling following a LOCA as required by 10 CFR 50.46. The staff considers BECo's actions responsive to the concems raised in BL 96-03. Therefore, BL 96-03 is closed for your facility. Detailed reviews of your strainer design and 10 CFR 50.59 evaluation may be performed on a plant-specific basis in the future.
If you have any questions regarding this matter, please contact Alan Wang at (301) 415-1445.
Sincerely, GRIGINAL SIGNED BY:
Alan B. Wang, Project Manager, Section 2 Project Directorate i Division of Licensing Project Management Office of Nuclear Reactor Regulation i
Docket No. 50-293 cc: See next page DISTRIBUTION:
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Mr. Theodora A. SullivIn Boston Edison Comprny Pilgrim Nuclur Pow:r Station cc:
Mr. Ron Ledgett -
Mr. Jack Alexander Executive Vice President Manager, Reg. Relations and Quality r
800 Boyleston Street Assurance
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Boston, MA 02199 Pilgrim Nuclear Power Station RFD #1 Rocky Hill Road
- Resident inspector Plymouth, MA 02360 U. S. Nuclear Regulatory Commission Pilgrim Nuclear Power Station -
Mr. David F. Tarantino Post Office Box 867 Nuclear Information Manager Plymouth;MA 02360 Pilgrim Nuclear Power Station RFD #1, Rocky Hill Road Chairman, Board of Selectmen Plymouth, MA 02360 11 Lincoln Street Plymouth, MA 02360 Ms. Kathleen M. O'Toole Secretary of Public Safety Chairman, Duxbury Board of Selectmen Executive Office of Public Safety Town Hall One Ashburton Place 878 Tremont Street Boston, MA 02108 Duxbury, MA 02332 Mr. Peter LaPoite, Director Office of the Commissioner Attn: James Muckerheide Massachusetts Department of Massachusetts Emergency Management Environmental Protection Agency One Wintor Street 400 Worcester Road Boston, MA 02108 P.O. Box 1496 Framingham, MA 01701-0317-Office of the Attorney General l
One Ashburton Place Chairman, Citizens Urging 20th Floor Responsible Energy Boston, MA 02108 P.O. Box 2621 Duxbury, MA 02331 Mr. Robert M. Hallisey, Director i
Radiation Control Program Citizens at Risk Massachusetts Department of P.O. Box 3803 Public floalth Plymouth, MA 02361 305 South Street Boston, MA 02130 W.S. Stowe, Esquire Boston Edison Company
~ Regional Administrator, Region 1 800 Boyleston St.,36th Floor U. S. Nuclear Regulatory Commission Boston, MA 02199 475 Allendale Road -
King of Prussia, PA 19406 Chairman Nuclear Matters Committee Ms. Jane Fleming Town Hall i
8 Oceanwood Drive 11 Lincoln Street i
Duxbury, MA 0233 Plymouth, MA 02360 Mr. James Meyes Mr. William D. Meinert Acting Licensing Division Manager Nuclear Engineer f
Boston Edison Company Massachusetts Municipal Wholesale
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600 Rocky Hill Road.
Electric Company Plymouth, MA 02360-5599 P.O. Box 426 Ludlow, MA 01056-0426 l-
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Ms. Mary Lampert, Director q
Massachusetts Citizens for Safe Energy l
t 148 Washington Street
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. Duxbury, MA 02332 1
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