ML20206A035
| ML20206A035 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 11/09/1988 |
| From: | Kintner L Office of Nuclear Reactor Regulation |
| To: | Cottle W SYSTEM ENERGY RESOURCES, INC. |
| References | |
| TAC-69403, NUDOCS 8811140394 | |
| Download: ML20206A035 (3) | |
Text
_ _ _ _ _ _
s
- N i
November 9, 1988 DISTRIBUTION td55EEITTWFP i
NRC PDR Local PDR PD21 r/f S. Varga (14E4)
G. Lainas Docket No. 50-416 E. Adensam i
P. Anderson L. Kintner-l Mr. W. T. Cottle OGC 1
Vice President, Nuclear Operations E. Jordan (MNBB3302)
System Energy Resources, Inc.
B. Grimes (9A2)
P. O. Box 23054 ACRS(10)
Jackson, Mississippi 39205
Dear Mr. Cottle:
SUBJECT:
REQUEST FOR ADDITIONAL INFORftATION. GRAND GULF NUCLEAR STATION (GGNS), UtilT 1 (TAC NO. 69403) t-By letter dated September 23, 1988, System Energy Resources, Inc. requested a review of its proposed alternate decay heat removal system.
The NRC staff is reviewing this submittal and finds that additional information is needed to complete our review.
The request for additional information is enclosed.
i I
In order to support our review schedule, you are requested to respond to the r
enclosed request by November 30, 1988.
This request was discussed with Mr.
t i
Matt Crawford on November 7,1988.
[
i i
The reporting and/or recordkeeping requirements of this letter affect fewer than ten respondents; therefore, OMB clearanc.e is not required under P. L.
i 96 511.
Sincerely, I
s
/.5/
~8
- ]*
Lester L. Kintner, Senior Project Manager
[
n Project Directorate II.1
$o Division of Reactor Projects I/I!
l t
ex l
$R
Enclosure:
05 Request for Additional Information j'$
cc w/ enclosure:
l See next page (GGNSRAI69403)
]g l
- 0FC
- Lp DPR:PM:P R: PR
- D _ /'
1 A
f D PD21:QRPR :
T/\\M:..:<- W....:.......<....:............:...........
i.....:..
i NAME :
n : LK c h :.'.
ham (#Ac.ensam
)DATE: 11 S_8 11/~6/88
- 11/ 4 /08 11/,i/88 l
OFFICIAL RECORD COPY f
i
o Mr. W. T. Cottle System Energy Resources, Inc.
Grand Gulf Nuclear Station (GGNS) cc:
Mr. T. 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 P. O. Box 23054 Port Gibson, Mississippj 39150 Jackson, Mississippi 39205 Robert B. McGehee, Esquire The Honorable William J. Guste, Jr.
Wise, Carter, Child, Steen and Attorney General Caraway Department of Justice P. O. Box 651 State of Louisiana Jackson, Mississippi 39205 Baton Rouge, Louisiana 70804 Nicholas S. Reynolds, Esquire Office of the Governor Bishop, Liberman, Conk, Purcell State of Mississippi and Reynolds d'.o,1n, Mississippi 39201 1400 L Street, N.W.
Washington, D.C.
20005-3502 A.'.'ur niy Genera l dartin Building Mr. Ralph T. Lally Jackson, Mississippi 39205 Hanager of Quality Assurance Middle South Utilities System Mr. Jack McMillan, Director Services, Inc.
Division of Solid Waste Management 639 Loyola Avenue, 3rd Floor Mississippi Department of Natural New Orleans, Louisiana 70113 Resources Post Office Box 10385 Mr. John G. Cesare Jackson, Mississippi 39209 Director, Nuclear Licensing System Energy Resources, Inc.
Altnn B. Cobb, M.D.
j P. O. Box 23054 State Health Officer Jackson, Mississippi 39205 State Board of Health i
l P.O. Box 1700 Mr. C. B. Hogg, Project Manager Jackson, Mississippt 39205 Bechtel Power Corporation 1
P. O. Box 2166 President Houston, Texas 77252-2166 Claiborne County Board of Supervisors Port Gibsrn, Mississippi 39150 Hr. H. O. Christensen Senior Recident Inspector Regional Administrator, Region !!
I U.S. Nuclear Regulatory Comission U. S. Nuclear Regulatory Commission Route 2, Box 399 101 Marietta Street Port Gibson, Mississippi 39150 Suite 2900 Atlanta, Georgia 30323
...
- g ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION
{
ALTERNATE nrCAY HEAT REMOVAL SYSTEM (ADHRS)
GRAND GULF NUCLEAR STATION. U.HT 1 i
i The following information is required to assess the structural integrity of ADHRS and the Auxiliary Building during a seismic event:
1.
Floor response spectra at the supports of ADHRS.
2.
Nathematical model of ADHRS, showing location and weight mass points, support and boundary conditions, stiffness and damping characteristics of the system, and geometri,il dimensions.
3.
Method of analysis to calculate dynamic responses to input motion.
Response spectrum method or time history method.
4.
Calculated results including natural frequencies of ADHRS, maximum acceleration at mass points, stresses in components and connections.
5.
Seismic loads imposed on walls, beams and other structural elements of the Auxiliary Building.
The following information is needed for the review of radiation protection aspects of the ADHRS.
1.
Provide the existing radiation zone designation for the low pressure core s) ray (LPCS) pump room and the residual heat removal (RHR) "C" pump room w1ere the ADHRS piping will be installed.
2.
Describe any administrative controls to control access to the LPCS pump room and the RHR "C" pump room when the ADHRS is in operation.
3.
Clarify what is meant by the last sentence on page P.74 which begins "Also, per UFSAR Table 3.11-2, system operating dose is 30 rads /hr,...."
4.
Is 30 rads /hr in the above sentence an error?
5.
Provide the total estimated man-rem for installation of the ADHRS and the estierated yearly dose to plant personnel from operation and maintenance i
of this system.
l i
f
-