ML20195G028
| ML20195G028 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 06/09/1999 |
| From: | Hughey W ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GL-96-06, GL-96-6, GNRO-99-00046, GNRO-99-46, NUDOCS 9906150195 | |
| Download: ML20195G028 (11) | |
Text
a b&
O Enttrgy oper;tions,Inc.
N PO. Box 756 Port Gbson, MS 39150 Td 601437-6470 W.K.Hughey Duector k,ar Gafety & F>datory June 9,1999 U.S. Nuclear Regulatory Commission Mail Station P1-37 Washington, D.C. 20555 Attention:
Document Control Desk
Subject:
Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 Generic Letter (GL) 96-06, Preliminary Action Plan for Resolution GNRO-99/00046 Gentlemen:
In response to GL 96-06 Grand Gulf Nuclear Station (GGNS) committed, in a letter dated November 4,1997, to take appropriate action to resolve the nonconforming condition for each Containment /Drywell penetration, determined to be susceptible to overpressurization due to thermal expansion of fluid. The eighteen identified penetrations will be restored to conformance with the licensing requirements prior to restart from RFO10 (now scheduled f
for Fall 1999).
As we stated in our January 28,1997 letter, an engineering evaluation of all the affected Containment /Drywell penetrations concluded they would retain their ability to perform their
,Q
@l (;[1 safety function (i.e., Containment integrity). Furthermore, we provided additional information, in a letter dated November 20,1997, to permit the staff to continue its review of
)'
the GGNS response to GL 96-06. The information we provided included:
- 1. Summaries of the evaluations of the eighteen penetrations,
- 2. Methods of analysis, including the assumptions, and the results,
- 3. Fabrication drawings of the affected piping sections,
- 4. Discussion on how the criteria used, for the operability evaluations, meet the licensing basis criteria for GGNS, and,
- 5. The schedule for completion of any required modification.
At the request of Mr. Pat Sekerak, GGNS now submits the following summary for planned resolution of GL 96-06, for the eighteen penetrations previously identified as being j
potentially susceptible to overpressurization. Please refer to Attachment 1 for the planned resolution for each penetration.
9906150195 990609 T
PDR ADOCK 05000416 P
PDR _
u
'T.
- GNRD-99/00046
- Page 2 of 4 A breakdown of the planned resolution is as follows:
Modification Procedure Acceptable per Potential Modification Required Change Analysis Analysis Ongoing 5 penetrations 2 penetrations 5 penetrations 6 penetrations Please feel free to contact Dana E. Smith at (601) 437-6434 should you have any questions or require additionalinformation.
Yours truly, DES /LFD/WKH attachment:
. cc:
(See Next Page)
..,7-
' GNRO-99/00046 Page 3 of 4
. Ms. J. Li Dixon-Herrity, GGNS Senior Resident (w/a) cc':
Mr. L. J. Smith (Wise Carter) (w/a)
Mr. N. S. Reynolds (w/a)-
Mr. H. L. Thomas (w/o)
Mr. E. W. Merschoff (w/a) -
Regional Administrator U.S Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX ' 76011 Mr. S. P. Sekerak, NRR/DLPM/PD IV-1 (w/2)
U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 13D18 11555 Rockville Pike Rockville, MD 20852-2378 bec:
File (LCTS/RPTS) (w/a)
File (Hard Copy)(w/a)
File (Central)(w/a)(11) >
c e
r GNRO-99/00046 Page 4 of 4 ccmail:
- Mr. W. B. Abraham Mr. C. D. Holifield Mr. G. R. Ashley (ANO - LIC)
Mr. W. K. Hughey Mr. W._ J. Beck (RB - LIC)
Mr. M. G. Hurley
- Mr. S. J. Bethay (ECH - LIC)
Mr. C. R. Hutchinson (ANO - VP)
Mr. J. G. Booth IEA (ANO - OE)
Mr. D. G. Bost Mr. D. E. James (ANO - LIC) l
- Mr. C. A. Bottemiller Mr. O. L. Janecek l
Mr. P. W. Brewer Mr. R. S. Johnson Mr. C. E. Brooks Mr. M. L. Jones Mr. O. P. Bulich (RB - OE)
Mr. R. J. King (RB - LIC)
Mr. F, G. Burford Mr. C. W. Lambert
- Mr. R. W. Byrd Mr. M. J. Larson Mr. W. C. Cade
-* Ms. J. M. Manzella (W3 - OP) 2 Mr. R. W. Carrol Mr. J. R. McGaha (ECH)
Ms. T. M. Carter Mr. T. O. McIntyre Mr. W. F. Clark Mr. R. V. Moomaw Mr. D. G. Cupstid Mr. J. E. Owens Mr. J. P. Czaika '
Mr. S. D. Reeves
- Mr. L. F. Daughtery Mr. J. C. Roberts Mr. G. G. Davie (W3 - LIC)
Mr. J. L Robertson Mr. D. R. Denton (ANO)
Mr. C. D. Stafford Mr. M. A. Dietrich (RB - QP)
Mr. G. D. Swords
Mr. L. G. Temple
- Mr. W. A. Eaton Ms. E. A. Turnage i
Mr. C. W. Elisaesser Mr. R. L. Thomas (ECH)
Mr. J. L. Ensley (ESl)
Mr. T. H. Thurmon
- Mr. E. C. Ewing (W3 - LIC)
Mr. J. D. Vandergrift (ANO - LIC)
Mr. R. E. Garrison (M-ECH-411)
Mr. J. E. Venable Mr. T. J. Gaudet (W3 - LIC)
Mr. A. D. Wells (RB)
Ms. C. W. Gunn Mr. R. A. Wilson t
- Always include on distribution a_m
P-Attichm:nt 1 to GNRO-99/00046 Page 1 of 7 PLANNED RESOLUTIONS FOR EACH PENETRATION Penetrations Requiring Modification Drywell Penetration No. 331:
System
Description:
Drywell Chillers Return Header Line Number:
4"-HBB-42 & 5"SCH 160 P&lD:
M-1072B isometric:
M-1331F j
Drywell Valve (Inboard):
Q1P72F125; Gate Valve Containment Valve (Outboard):
Q1P72F126; Gate Valve A RF010 modification to valve Q1P72F125 to eliminate penetration overpressurization is anticipated. As there is already an existing non-safety relief valve upstream of isolation valve Q1P72F125, no new relief valve will be added.
Drywell Penetration No. 348:
System
Description:
Drywell Equipment Floor drain Line Number:
3" & 4"-HBB-95 & 4" Sch 160 P&lD:
M-1094A Isometric:
M-1356D Drywell Valve (Inboard):
Q1P45F009; Gate Valve Containment Valve (Outboard):
Q1P45F010; Gate Valve A RFO10 modification, to valve Q1P45F009 or Q1P45F010, to eliminate penetration overpressurization is anticipated. A non-safety related pressure relief path would also be provided.
Drywell Penetration No. 364:
System
Description:
Floor Drain for Chemical Waste Sump Pump Discharge Line Number:
1 %"-HCB-20 P&lD:
M-1094E lsometric:
FSK-S-1094A-004-C Drywell Valve (Inboard):
Q1P45F090; Globe Valve Containment Valve (Outboard):
Q1P45F097; Globe Valve A RFO10 modification, to valve Q1P45F096 or Q1P45F097, to eliminate penetration overpressurization is anticipated. A non-safety related pressure relief path would also be provided.
Attichms:nt 1 to GNRO-99/00046 Page 2 of 7 Containment Penetration No. 50:
System
Description:
Containment Floor Drain Line Number:
6"-HBB-102 P&lD:
M-1094B Isometric:
M-1356D Containment Valve (Inboard):
Q1P45F067; Gate Valve Auxiliary Building Valve (Outboard):
Q1P45F068; Gate Valve A RFO10 modification consisting of adjusting the closure time for the isolation valves will be implemented. The cicsure time of the valves will be adjusted to allow drainage of the piping due to gravity.
This adjustment is contingent upon NRC approval of a limited application of revised source terms as contained in a letter dated November 3,1998. This submittal is currently under NRC review. The proposed change includes a relaxation of the isolation times for valves Q1P45F067 and Q1P45F068.
Containment Penetration No. 51:
System
Description:
Containment Equipment Floor Drain Line Number:
6"-HBB-101 P&lD:
M-10948 Isometric:
M-1355D Containment Valve (Inboard):
Q1P45F061; Gate Valve Auxiliary Building Valve (Outboard):
Q1P45F062; Gate Valve A RFO10 modification consisting of adjusting the closure time for the isolation valves will be implemented. The closure time of the valves will be adjusted to allow drainage of the piping due to gravity.
This adjustment is contingent upon NRC approval of a limited application of revised source terms as contained in a letter dated November 3,1998. This submittal is currently under NRC review. The proposed change includes a relaxation of the isolation times for valves Q1P45F061 and Q1P45F062.
4
Att:.chment 1 to GNRO-99/00046 Page 3 of 7 Penetrations Requiring Procedural Changes Drywell Penetration No. 330:
System
Description:
CCW Retum Line Number:
8"-HBB-37 P&lD:
M-1063B lsometric:
M-1333C Drywell Valve (Inboard):
Q1P42F116; Gate Valve Containment Valve (Outboard):
Q1P42F117; Gate Valve The isolation valves for this penetration currently receive no automatic closure signal. However the operator has the option to close the valves manually.
Therefore a change to the appropriate alarm response instructions will be implemented. The change will consist of requiring the operator to close only one valve when isolating Component Cooling Water (CCW).
No modification is required for this penetration.
Drywell Penetration No'. 333:
System
Description:
Reactor Recirculation / Condensate Refueling Water Storage & Transfer to RPV Line Number:
4"-HBB-111 & 5"Sch XXS P&lD:
M-1078A isometric:
M-1336F Drywell Valve (Inboard):
Q1833F204; Gate Valve Containment Valve (Outboard):
Q1B33F205; Gate Valve Since this line is only used during plant outages, operating procedures will be
)
changed to require draining the line prior to isolation during normal power operation. No modification is required for this penetration.
Penetrations Found Acceptable per Analysis Containment Penetration No. 43:
System
Description:
RWCU Blowdown to Condenser.
4 Line Number:
4" & 6"-EBB-1 P&lD:
M-1079 Isometric:
M-1342F Containment Valve (Inboard):
Q1G33F028; Gate Valve Auxiliary Building Valve (Outboard):
Q1G33F034; Gate Valve Piping and valves have been qualified using Subsection NC of the ASME Code, Section Ill. No modification is required for this penetration.
l
Attichm:nt 1 to GNRO-99/00046 Page 4 of 7 i
Containment Penetration No. 47:
System
Description:
Reactor Recirculation / PASS Line Number:
%"-DCB-50 P&lD:
M-1078A isometric:
FSK-S-1078A-135-C Containment Valve (Inboard):
Q1833F128; Globe Valve Auxiliary Building Valve (Outboard):
Q1833F127; Globe Valve Piping has been qualified using Appendix F of the ASME Code, Section Ill.
Valves have been qualified using Subsection NC of the ASME Code, Section Ill.
No modification is required for this penetration.
Containment Penetration No. 54:
System
Description:
Reactor Well Refueling Water Line Number:
12"-HBB-4 P&lD:
M-1088C isometric:
M-1351 A Containment Valve (Inboard):
Q1G41F201; Gate Valve Auxiliary Building Valve (Outboard):
Q1G41F053; Gate Valve Piping and valves have been qualified using Subsection NC of the ASME Code, Section Ill. No modification is required for this penetration.
Containment Penetration No. 81:
System
Description:
Reactor Recirculation / PASS Line Number:
%"-DCB-51 P&lD:
M-10788 Isometric:
FSK-S-10788-127-C Containment Valve (Inboard):
Q1B33F126; Globe Valve Auxiliary Building Valve (Outboard):
Q1833F125; Globe Valve
{
Piping and valves have been qualified using Subsection NC of the ASME Code, Section Ill. No modification is required for this penetration.
i l
I to GNRO-99/00046 Page 5 of 7 Containment Penetration No. 86:
System
Description:
Makeup Water Treatment / Demineralized Water Supply Line Number:
2" & 4"-HBB-155 P&lD:
M-0033B isometric:
FSK-S-0033B-134-C Containment Valve (Inboard):
Q1P21F018; Globe Valve Auxiliary Building Valve (Outboard):
Q1P21F017; Globe Valve Piping has been qualified using Appendix F of the ASME Code, Section 111 and valves have been qualified using Subsection NC of the ASME Code, Section Ill.
J No modification is required for this penetration.
Penetrations Being Analyzed (Potential Modification)
Drywell Penetration No. 349:
System
Description:
Drywell Floor Drain Line Number:
3" & 4"-HBB-96 & 4" Sch 160 P&lD:
M-1094A lsometric:
M-1355D Drywell Valve (Inboard):
Q1P45F003; Gate Valve Containment Valve (Outboard):
Q1P45F004; Gate Valve Piping has been qualified using Appendix F of the ASME Code, Section Ill. Valve analytical evaluations are on going with focus on the performance of the body-bonnet joint under the expected pressure and temperature.
Any required structural modification to the valve would be implemented during RFO10.
Containment Penetration No. 36:
System
Description:
Drywell Chilled Water Return Line Number:
4" & 5"-HBB-40 P&lD:
M-1072B isometric:
M-1331 F, M-1371 A Containment Valve (Inboard):
Q1P72F123; Gate Valve Auxiliary Building Valve (Outboard):
Q1P72F122; Gate Valve Piping has been qualified using Appendix F of the ASME Code, Section 111. Valve analytical evaluaties are on going with focus on the performance of the body-bonnet joint' under the expected pressure and temperature.
Any required structural modification to the valve would be implemented during RFO10.
L
~- f i Att: chm:nt 1 to GNRO-99/00046 Page 6 of 7 Containment Penetration No. 39:
System
Description:
Plant Chilled Water Return Line Number:
4" & 5"-HBB-43 P&lD:
M-1109D isometric:
M-1353M, M-1353K Containment Valve (Inboard):
Q1P71F149; Gate Valve Auxiliary Building Valve (Outboard):
Q1P71F148; Gate Valve Piping has been qualified using Appendix F of the ASME Code, Section Ill. Valve analytical evaluations are on going with focus on the performance of the body-bonnet joint under the expected pressure and temperature.
Any required structural modification to the valve would be implemented during RF010.
Containment Penetration No. 49:
System
Description:
RWCU Filter Demineralizer / RWCU Backwash Transfer Pump Line Number:
4"-HBB-152 P&lD:
M-1080B Isometric:
M-1343C Containment Valve (Inboard):
Q1G36F106; Gate Valve Auxiliary Building Valve (Outboard):
Q1G36F101; Gate Valve Piping has been qualified using Appendix F of the ASME Code, Section Ill. Valve i
analytical evaluations are on going with focus on the performance of the body-
' bonnet joint under the expected pressure and temperature.
Any required structural modification to the valve would be implemented during RFO10.
Containment Penetration No. 58:
J System
Description:
FPC&CU / Upper Pool Drain Tank Line Number:
8"-HBB-6 P&lD:
M-1088E, M-1088C Isometric:
M-1351B, M-1351C Containment Valve (Inboard):
Q1G41F044; Gate Valve Auxiliary Building Valve (Outboard):
Q1G41F029; Gate Valve Piping has been qualified using Subsection NC of the ASME Code, Section Ill.
Valve analytical evaluations are on going with focus on the performance of the body-bonnet joint under the expected pressure and temperature. Any required structural modification to the valve would be implemented during RFO10.
l I
e.
!+'
Att: chm:nt 1 to L
a GNRO-99/00046
)
l..
Page 7 of 7 ;
I' Containment Penetration No. 84:
1 System
Description:
Floor Drain for Chemical Waste Sump Pump Discharge l
1.ine Number:
3'-HCB-19 P&lD:
M-1094E Isometric:
M-1357D Containment Valve (Inboard):
Q1P45F098; Gate Valve Auxiliary Building Valve (Outboard):
Q1P45F099; Gate Valve Piping has been qualified using Appendix F of the ASME Code, Section Ill. Valve
(
analytical evaluations are on going with focus on the performance of the body-bonnet joint under the expected pressure and temperature.
Any required structural modification to the valve would be implemented during RFO10.
l l
l a
i
.