ML20056A752
| ML20056A752 | |
| Person / Time | |
|---|---|
| Site: | River Bend  |
| Issue date: | 08/03/1990 |
| From: | Abbate C Office of Nuclear Reactor Regulation |
| To: | Deddens J GULF STATES UTILITIES CO. |
| References | |
| GL-89-10, TAC-75708, NUDOCS 9008090148 | |
| Download: ML20056A752 (3) | |
Text
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- c UNITED aTATES l
it NUCLEAR REGULATORY COMMISSION i
.:l wAssiwoTow. o. c. rosss f
August 3, 1990
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Docket No. 50-458 Gulf States Utilities ATTN: Mr. James C. Deddens l
SeniorVicePresident(RBNG) l P. O. Box 220 St. Francisville, Louisiana 70775
Dear Mr. Deddens:
SUBJECT:
RESPONSE TO GENERIC LETTER 89-10. " SAFETY-RELATED MOTOR-0PERATED VALVE (MOV) TESTING AND SURVEILLANCE" (TAC NO. 75708)
On June 28, 1989, the NRC issued Generic Letter (GL) 89-10 requesting the establishment of a program to ensure the operability of all safety-related MOVs under design basis conditions. By letter dated December 20, 1989, Gulf States Utilities (GSU) responded to the GL and requested an extension until the BWR Owners' Group position was completed. The NRC staff responded in a t
letter dated June 18, 1990, which found the extension unacceptable and requested a response addressing the requirements of the GL be submitted by June 28, 1990.
By letter dated June 28, 1990, GSU submitted a response to the GL which su)erseded the December 20, 1989 submittal. The staff has reviewed the submittal on GSU's MOV program and provides the comments below.
The staff will evaluste GSU's program and its implementation during plant inspections.
In t h June 28, 1990, letter, GSU committed to have the description of the l
MM program in response to the generic letter available on site by November 30, 1190. The staff discussed the information that should be orovided in the program descriptions at the public workshops on Generic Le'tter 89-10. The resJits of those workshops were issued as Supplement 1 to the gereric letter on June 13, 1990.
To allow time for licensees to review the information in that supplement and to incorporate the information into their generic letter programs, the staff has decided to delay the commencement of inspections of the program descriptions until January 1,1991. Therefore, the program description need not be available on site until January 1,1991. As the MOV program is developed, justification for any differences between your program l
end Generic Letter 89a0 (end its supplements) should be incorporated into the program description.
GSU indicated concurrence with the position held by the BWR Owners' Group on the valve mispositioning issue. The staff is currently discussing this issue with the EWR Owners' Group. Therefore, the staff will withhold comment on GSU plans regarding mispositioning until the resolution of this issue.
GSU stated that in situ testing of MOVs at full flow and maximum differential l
pressure conditions will be performed where possible.
In those cases where testing under such conditions cannot be accomplished, GSU indicated that testing will be performed at less than full flow and differential pressure conditions and that analytical means will be used to establish the MOV switch settings (which you refer to as Phase I). The staff recommends that, in those 900809014s 900803 D Fo l gDR ADocKosoog.s g
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2 instances, GSU test the MOVs at the highest practicable flow and. differ.
i ential pressure beriuse of the uncertainty in extrapolating data from l
. static tests. Further, the adequacy of static tests to establish a baseline for the evaluation of switch settings during periodic ver'fications depcnds on the extent to which additional testing was performed <t high flow and differential pressure conditions along with those static tests.
The staff does not object to GSU's schedule for completing Phese I of the MOV program in four refueling outages provided the program description justifies this schedule. During plant inspections, the staff will evaluate the progress being made in implementing your program.
Sincerely, OriginalSigned By:
Claudia M. Abbate, Project Engineer Project Directorate IV-2 Division of Reactor Projects. III, IV, Y and Special Projects Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION (Docket J11ej E. Peyton NRC PDR C. Abbate Local PDR.
OGC D. Crutchfield E. Jordan B. Boger '
ACRS (10)
C. Grimes L. Constable, RIV i
i PDIV-2 R/F A. Gody, Jr.
PDIV-2 Plant File L. Marsh l
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- CMAbbate:ye : LBMarsh
- CGrime DATE : 7/cW90
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-Document Name:
SAFETYRELATED MOV
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" Mr.. James C. Deddens l cc:
Mark Wetterhahn, Esq.
Ms. H. Anne Plettinger Bishop, Cook.Purcell & Reynolds 3456 Villa Rose Drive 1401 L Street, N.W.
Baton Rouge, t.nuisiana 70806 Washington, D.C.
20005 Mr. Les England Director - Nuclear. Licensing Gulf States Utilities Company P. O. Box 220 St. Francisville, Louisiana 70775 Mr. Philip G. ;;arris Cajun F,lectric Power Coop. Inc.
10719 Airline Highway P. O. Box 15540 Baton Rouge, Louif.... 70895 Senior Rasidrat inspector P. O. Box 1r.61 St. Franti',ville Louisiana 70775 Presiden'; of West Feliciana Police Jury i
P. O. Box 1921 l
St. Frr.acisville, Louisiana 70775 Regional Administrator, Region IV q
U.S. Nuclear Regulatory Comission
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611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011 Hr. J. E. Booker i
Manager-Nuclear Industry Relations P. O. Box 2951 Beaumont, Texas 77704 Mr. William H. Spell, Administrator iNuclear Energy Division l.
Office of Environmental' Affairs P. O. Box 14690 Baton Rouge, Louisiana 70898 he. J. David McNeill, III Wi'liam G. Davis, Esq.
Decartment of Justice Attorney General's Office P.-0. Box 94095 Baton Rouge, Louisiana 70804-9095
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