ML20128G184
| ML20128G184 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 10/04/1996 |
| From: | Larry Wheeler NRC (Affiliation Not Assigned) |
| To: | Mccoy C GEORGIA POWER CO. |
| References | |
| TAC-M94881, NUDOCS 9610080369 | |
| Download: ML20128G184 (4) | |
Text
l fo-N2Yl4%
l f*4t l
p y%
8 UNITED STATES I
E NUCLEAR REGULATORY COMMISSION f
WASHINGTON. D.C. 20565-0001
/
October 4, 1996 l
Mr. C. K. McCoy Vice President - Nuclear Vogtle Project Georgia Power Company l
P. O. Box 1295 Birmingham, AL 35201 I
l
SUBJECT:
STAFF REVIEW 0F UNRESOLVED INSPECTION ITEM 50-424/95-27-02 CONCERNING THE APPLICATION OF TECHNICAL SPECIFICATIONS TO CONTAINMENT ISOLATION VALVES - V0GTLE ELECTRIC GENERATING PLANT, l
UNITS 1 AND 2 (TAC NO. M94881)
Dear Mr. McCoy:
l This letter is a request for justification for retaining the provisions of the Vogtle Electric Generating Plant (VEGP) Final Safety Analysis Report (FSAR) that state that the requirements of the containment isolation valve technical i
specification (TS) are not applicable to certain containment isolation valves, j
and that the appropriate system TS would be used instead.
It provides the status of the staff review of this item as discussed in the September 25, 1996, cover letter for the VEGP TS conversion.
For an extended period of time beginning in late 1994, Vogtle Unit I was operating with valve 1-HV-1806, a Nuclear Service Water Containment Cooler (NSCW) supply valve, in a degraded condition. Specifically, the valve would not fully shut. This valve is the containment isolation valve for the NSCW supply into the containment for safety-related containment coolers 1 and 2.
The situation was described in NRC inspection report Nos. 50-424/95-27 and 50-425/95-27, dated December 1, 1995. Although the degraded condition was subsequently fixed during a March 1996 refueling outage, the problem raised a concern about the relationship between the Vogtle FSAR and the TS used to support continued plant operations with the valve in a degraded condition.
Valve 1-HV-1806 is identified as a containment isolation valve in the system drawing and in the FSAR.
However, there is a footnote to FSAR Table 16.3-4, which states that for this valve and several other valves, the requirements of TS 3/4.6.3, Containment Isolation, do not apply. The footnote refers to TS 4.7.4, which requires that the NSCW be operable. As long as valve 1-HV-l I
1806 is open, this requirement is met and no further action is required.
However, the safety function of containment isolation may be lost any time the valve fails to fully close.
This situation appears to have been part of the original licensing basis for
/
l VEGP. NUREG-1137, " Safety Evaluation Report Related to the Operation of fi Vogtle Electric Generating Plant, Units 1 and 2," dated June 1985, and its 0!
l supplements issued on various later dates do not discuss this situation. A search of FSARs and TSs for other plants licensed around the same time as VEGP hi l
Units 1 and 2 did not find a similar situation.
F "U b & > f. ~" I N"9 pd%
9610080369 961004
~
h-,* #
PDR ADOCK 05000424 a
t&
G ppg
- -. ~...._-
Mr. C. K. McCoy October 4, 1996 h
I Similar FSAR Table 16.3-4 footnotes apply to containment isolation valves in the emergency core cooling system, the containment spray system, the main steam isolation valves, and the auxiliary feedwater system.
Therefore, we request that you provide a justification for retaining footnotes
- d. through h. to FSAR Table 16.3-4, or revise the table to eliminate these footnotes.
If you choose to retain the footnotes, the staff will review your justification and consider whether a backfit, under the provisions of 10 CFR 50.109, to require removal of these footnotes, is appropriate.
Sincerely, C,
)
ouis L. Wheeler, Senior Project Manager Project Directorate 11-2 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation Docket Nos. 50-424 and 50-425 cc w/ encl:
See next page I
. -. _ ~
5 Mr. C. K. McCoy October 4, 1996 1
Similar FSAR Table 16.3-4 footnotes apply to containment isolation valves in the emergency core cooling system, the containment spray system, the main steam isolation valves, and the auxiliary feedwater system.
Therefore, we request that ~you provide a justification for retaining footnotes
- d. through h. to FSAR Table 16.3-4, or revise the table to eliminate these footnotes.
If you choose to retain the footnotes, the staff will review your justification and consider whether a backfit, under the provisions of 10 CFR l
50.109, to require removal of these footnotes, is appropriate.
Sincerely, 4
(original signed by)
Louis L. Wheeler, Senior Project Manager Project Directorate 11-2 i
Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation l
Docket Hos. 50-424 and 50-425 DISTRIBUJION S.Varga g$schet1E{]eap S.Varga 0-14 E4 E.Merschoff,RII PUBLIC R.Zimmerman 0-12 G18 C. Grimes 0-11 F23 G. Hill (4)
ACRS T-1 E26 P. Skinner,RII PDII-2 Reading R.Lobel,SCSB i
cc:
See next page l
l To receive a copy of this document, indicate in the box:
"C" - Cop w.ithout attachment /enelpsure "E" - Copy with attachment / enclosure]t,_"_N" =/y o copy 0FFICE PM:PD W I E
LA:PD22r.nl BC:SCSB MtClll MP s2Off NAME DWheElfr:cn LBerry1j(P CBerlinger
$6ejlK'ow V DATE 10/ L]
/96 10/ L '/96' 10/ / /96 1D7 $ /)6 I;
)0CUMENT NAME:/ G:\\V0GTLE\\V0G9488).LTR OFFICIAL RECORD COPY C8 CQ
a Mr. C. K. McCoy l
Georgia Power Company Vogtle Electric Generating Plant cc:
i Mr. J. A. Bailey Harold Reheis, Director l
Manager - Licensing Department of Natural Resources l
Georgia Power Company 205 Butler Street, SE. Suite 1252 l
P. O. Box 1295 Atlanta, Georgia 30334 Birmingham, Alabama 35201 l
Attorney General Mr. J. B. Beasley Law Department General Manager, Vogtle Electric 132 Judicial Building Generating Plant Atlanta, Georgia 30334 P. O. Box 1600 Waynesboro, Georgia 30830 Mr. Thomas P. Mozingo Program Manager Regional Administrator, Region II Nuclear Operations U. S. Nuclear Regulatory Commission Oglethorpe Power Corporation 101 Marietta Street, NW., Suite 2900 2100 East Exchange Place Atlanta, Georgia 30323 P. O. Box 1349 Tucker, Georgia 30085-1349 Office of Planning and Budget Room 615B Charles A. Patrizia, Esquire 270 Washington Street, SW.
Paul, Hastings, Janofsky & Walker Atlanta, Georgia 30334 10th Floor 1299 Pennsylvania Avenue Office of the County Commissioner Washington, DC 20004-9500 Burke County Commission i
Waynesboro, Georgia 30830 Arthur H. Domby, Esquire Troutman Sanders Mr. J. D. Woodard NationsBank Plaza l
Senior Vice President 600 Peachtree Street, NE.
Georgia Power Company Suite 5200
)
P. O. Box 1295 Atlanta, Georgia 30308-2216 Birmingham, Alabama 35201 Resident Inspector Steven M. Jackson U.S. Nuclear Regulatory Commission Senior Engineer - Power Supply 8805 River Road Municipal Electric Authority Waynesboro, Georgia 30830 of Georgia 1470 Riveredge Parkway, NW l
Atlanta, Georgia 30328-4684 i
I i