ML20216C562
| ML20216C562 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 06/24/1987 |
| From: | Kintner L Office of Nuclear Reactor Regulation |
| To: | Kingsley O SYSTEM ENERGY RESOURCES, INC. |
| References | |
| NUDOCS 8706300306 | |
| Download: ML20216C562 (4) | |
Text
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June 24, 1987 o
Docket No. 50-416 DISTRIBUTION 1
-Docket Filey E. Jordan NRC PDR J. Partlow Local PDR ACRS (10)
Mr. Oliver D. Kingsley, Jr.
PD22 Rdg.
J. Craig Vice President, Nuclear Operations S. Varga A. Thadani System Energy Resources, Inc.
G. Lainas Gray File P.O. Box 23054 D. Miller A. Notafrancesco Jackson, Mississippi 39205 L. Kintner W. Paulson 0GC-Bethesda B. Siegel
Dear Mr. Kingsley:
T. Colburn
SUBJECT:
Grand Gulf Nuclear Station (GGNS), Unit 1 Hydrogen Control System Final Analysis Required by 10 CFR 50.44 The Commission's rule.for control of hydrogen gas that may be generated following a postulated loss-of-coolant accident (10 CFR 50.44) requires that j
each licensee with a BWR Mark III containment submit an analysis of its hydrogen control system on a final schedule to be established by the NRC staff.
The purpose of this letter is to provide guidance on an acceptable scope and schedule of the_ hydrogen control final analysis for GGNS-1.
The scope of the hydrogen control analysis is specifie! in Paragraph (c)(3)(vi)(B) of 10 CFR 50.44. The analysis must provide an evaluation of tne consequences of hydrogen released from a degraded core accident, include the recovery period, use postulated accidents accepted by the NRC staff, support the design l
of.the hydrogen control system, show that containment structural integrity is maintained and demonstrate survivability of systems and components necessary to establish and maintain safe shutdown and containment integrity. The Hydrogen Control Owners Group (HCOG), which consists of the owners of the four domestic
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BWR 6 Mark III plants, is performing generic analyses and tests of hydrogen I
control in a quarter scale test facility to support the plant-specific analyses j
for the four plants. HCOG submitted a topical report, HGN-112 " Generic Hydrogen Control Information for BWR 6 Mark III Containments," dated February 23, 1987 which provided much of the information required by the rule. The remainder of 3
the generic information is scheduled to be submitted in July 1987. Each licensee J
should provide a plant-specific analysis which will address the elements specified in 10 CFR 50.44(c)(3)(vi)(B). The HC0G topical report, or portions thereof, may be referenced where appropriate, but the plant-specific report should provide the information needed to demonstrate the acceptability of the hydrogen control system for GGNS-1.
The NRC staff is presently reviewing Topical Report HGN-112 and associated As a part of its review, the staff will evaluate p(SER) lant-generic informat Mn.
The staff's generic safety evaluation report specific considerations.
is currently scheduled for completion in October 1987.
Plant-specific reports should be submitted within 6 months of the issuance date of the staff's generic SER, taking into consideration SER recommendations regarding information to be included in the plant-specific reports.
8706300306 870624 PDR ADOCK 05000416 P
Mr. Oliver D. Kingsley, Jr.
- 2.-
-By letter dated January 31, 1986, the GGNS Unit I licensee (Mississippi Power.&
Light Company prior to December 20, 1986, and System Energy-Resources, Inc.
on and after that date). proposed to submit the.GGNS Unit.1 final analysis by June'30,-1987, based on. completion of HC0G's submittals by December 31, 1986. Because of the slipped HCOG submittal completion date, the licensee's submittal date is no. longer achievable.
1 You are requested to submit by July 17,1987,'a proposed outline and revised
' schedule:-for the GGNS-1 hydrogen control system final analysis : submittal i i
required by 10 CFR 50.44. Submittal of'the report within 6 months'of the
.i issuance date of the NRC staff's generic SER would be an acceptable schedule..
I
-;The outline of the report should indicate the depth of treatment of the topics j
to be included.
1 The reporting and/or recordkeeping requirements contained in this letter j
affect fewer than ten respondents; therefore, OMB clearance is not required 1
under P.L.96-511, 1
1 Sincerely.-
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/s/
Lester L. Kintner, Project Manager-Project Directorate II-2' Division of Reactor Projects-I/II cc: See next page j
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Mr. 01'iver D. Kingsley, Jr. By.lett'er dated. January 31, 1986, the GGNS Unit I lice'nsee (Mississippi Power &
Light Company prior to December 20, 1986, and System Energy Resources.-Inc.
on and after that date) proposed to submit the GGNS Unit 1 final analysis by June 30, 1987, based on completion of HC0G's submittals by December 31, 1986. Because of the slipped HC0G submittal completion dato,.the licensee's submittal date'is no longer achievable.
You are reque ted to submit a proposed outline and revi ed schedule for the GGNS-1 hydroge control system final analysis submitt required by.10 CFR 50.44. A commi ent to submit the' report within 6 m ths of the issuance date of the NRC s. ff's generic SER would be an acc ptable schedule. The
. outline of the rep should indicate the depth o treatment of.the topics to.be included. You esponse to this 1etter is requested by June 30, 1987.
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The reporting and/or rekrdkeeping requiremen/, OMB clearance s-contained in this-letter-affect fewer. than ten respondents; therefo under P.L.96-511.
- incerely, Lester L. Kintner, Project Manager Project Directorate II-2 Division of Reactor Projects-I/II.
cc: See next page N
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r-Mr. Oliver D. - Kingsley, Jr.
System Energy Resources, Inc.
Grand Gulf Nuclear Station (GGNS) cc:
Mr. Ted H. Cloninger Mr. C. R. Hutchinson Vice President, Nuclear Engineering GGNS General Manager and Support System Energy Resources Inc.
System Energy Resources, Inc.
Post Office Box 756 Post Office Box 23054 Port Gibson, Mississippi 39150 Jackson, Mississippi 39205 Robert B. McGehee, Esquire The Honorable William J. Guste, Jr.
Wise, Carter, Child, Steen and Caraway Attorney General P.O. Box 651 Department of Justice Jackson, Mississippi 39205 State of Louisiana Baton Rouge, Louisiana 70804 Nicholas S. Reynolds, Esquire Bishop, Liberman, Cook, Purcell Office of the Governor and Reynolds State of Mississippi 1200 17th Street, N.W.
Jackson, Mississippi 39201 Washington, D. C.
20036 Attorney General Mr. Ralph T. Lally Gartin Building Manager of Ouality Assurance Jackson, Mississippi 39205 Middle South Utilities System Services Inc.
P.O. Rox 61000 Mr. Jack McMillan, Director New Orleans, Louisiana 70161 Division of Solid Waste Management Mississippi Department of Natural Mr. John G. Cesare Resources Director, Nuclear Licensing and Safety Bureau of Pollution Control System Energy Resources, Inc.
Post Office Box 10385 P.O. Box 23054 Jackson, Mississippi 39209 i
Jackson, Mississippi 39205 Alton B. Cobb, M.D.
{
Mr. R. W. Jackson, Project Engineer State Health Officer i
Bechtel Power Corporation State Board of Health 15740 Shady Grove Road P.O. Box 1700 Gaithersburg, Maryland 20877-1454 Jackson, Mississippi 39205 3
Mr. Ross C. Butcher President Senior Resident Inspector Claiborne County Board of Supervisors U.S. Nuclear Regulatory Commission Port Gibson, Mississippi' 39150 Route 2, Box 399 Port Gibson, Mississippi 39150 U
Regional Administrator, Region II U.S. Nuclear Regulatory Commission i
101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 Mr. James E. Cross GGNS Site Director System Energy Resources, Inc.
P.O. Box 756 Port Gibson, Mississippi 39150 t
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