ML20034G606
| ML20034G606 | |
| Person / Time | |
|---|---|
| Site: | Clinton  |
| Issue date: | 02/23/1993 |
| From: | Pickett D Office of Nuclear Reactor Regulation |
| To: | Spangenberg F ILLINOIS POWER CO. |
| References | |
| GL-92-04, GL-92-4, TAC-M84274, NUDOCS 9303100224 | |
| Download: ML20034G606 (4) | |
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Docket No. 50-461 Mr. Frank A. Spangenberg Manager - Licensing and Safety Clinton Power Station P.O. Box 678 Mail Code V920 Clinton, Illinois 61727
Dear Mr. Spangenberg:
SUBJECT:
RESP 0NSE TO GENERIC LETTER 92-04, " RESOLUTION OF THE ISSUES RELATED TO REACTOR VESSEL WATER LEVEL INSTRUMENTATION IN BOILING WATER REACTORS" (TAC NO. M84274)
This letter acknowledges receipt of your response to Generic letter (GL) 92-04, dated September 25, 1992 (U-602045).
GL 92-04 was issued by letter dated August 19, 1992, to all operating Boiling Water Reactor (BWR) Licensees.
GL 92-04 requested licensees to promptly assess the impact on their facilities of potentially erroneous level indication due to non-condensible gases, and to implement compensatory measures and long-term corrective actions as necessary.
We find acceptable:
1.
Illinois Power Company's (IP) review and acceptance of the BWR Owners' Group's (BWROG) generic analysis as being applicable to the Clinton Power Station.
2.
IP endorsement of the BWROG commitment as outlined in its letter dated August 12, 1992, regarding schedule and plans for actions to address postulated errors in BWR water level instrumentation.
3.
IP endorsement of the BWROG Emergency Procedures Committee guidance letter dated August 19, 1992.
This letter provides guidance for operator action in the event of level indication errors due to non-condensible gases i
during RPV depressurization.
We also understand that you have sensitized your operators to these potential errors consistent with the BWROG guidance.
4.
IP commitment to implement the longer-term BWROG finding, resulting from their experimental and analytical programs on a schedule consistent with the BWROG program, as iocumented in their letter of August 12, 1992, and discussed at the October 29, 1992, meeting with the NRC.
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On October 23, 1992, the BWROG approved refined operator guidance developed by the Emergency Procedures Committee, sent to your Operations Superintendent on October 16, 1992, for response to instrument errors due to non-condensible i
gases._ We feel that this guidance provides appropriate information for operators to adequately identify and deal with potentially inaccurate RPV level instrumentation, and expect that this or equivalent guidance has been e
incorporated into your station operations.
Should you have any questions, please contact me at (301) 504-1324.
1 Sincerely, Orhiner e%g n,y Douglas V. Pickett, Sr. Project Manager Project Directorate III-2 i
Division of Reactor Projects - Ill/IV/V Office of Nuclear Reactor Regulation cc:
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Mr. trank A. Spangenberg Clinton Power Station Illinois Power Company Unit No. I cc:
Mr. J. S. Perry Illinois Department Vice President of Nuclear Safety Clinton Power Station Office of Nuclear Facility Safety Post Office Box 678 1035 Outer Park Drive Clinton, Illinois 61727 Springfield, Illinois 62704 Mr. J. A. Miller Mr. Dcnald Schopfer p
Manager Nuclear Station Project Manager Engineering Department Sargent & Lundy Engineers l
Clinton Power Station 55 East Monroe Street Post Office Box 678 Chicago, Illinois 60603 l
Clinton, Illinois 61727 Sheldon Zabel, Esquire Schiff, Hardin & Waite 7200 Sears Tower 233 Wacker Drive Chicago, Illinois 60606 Resident inspector U.S. Nuclear Regulatory Commission RR#3, Box 229 A Clinton, Illinois 61727 Ms. K. K. Berry Licensing Services Manager R
General Electric Company 175 Curtner Avenue, M/C 382 San Jose, California 95125 j
Regional Administrator, Region III 799 Roosevelt Road, Building 4 i
Glen Ellyn, Illinois 60137 Chairman of DeWitt County c/o County Clerk's Office DeWitt County Courthouse Clinton, Illinois 61727 Mr. Robert Neumann Office of Public Counsel State of Illinois Center 100 W. Randolph, Suite 11-300 Chicago, Illinois 60601 l
Mr. Frank A. Spangenberg On October 23, 1992, the BWROG approved refined operator guidance developed by the Emergency Procedures Committee, sent to your Operations Superintendent on October 16, 1992, for response to instrument errors due to non-condensible gases. We feel that this guidance provides appropriate information for operators to adequately identify and deal with potentially inaccurate RPV level instrumentation, and expect that this or equivalent guidance has been incorporated into your station operations.
Should you have any questions, please contact me at (301) 504-3324.
Sincerely, Orbirict phyrf p,,,
Douglas V. Pickett, Sr. Project Manager
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