View source for GNRO-2006/00054, Technical Specification Bases Update to the NRC for Period Dated September 28, 2006

{{Adams
| number = ML062750148
| issue date = 09/28/2006
| title = Technical Specification Bases Update to the NRC for Period Dated September 28, 2006
| author name = Bottemiller C
| author affiliation = Entergy Operations, Inc
| addressee name = 
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000416
| license number = NPF-029
| contact person = 
| case reference number = GNRO-2006/00054
| document type = Letter type:GNRO, Technical Specification, Bases Change
| page count = 6
}}

=Text=
{{#Wiki_filter:AN                                                                                Entergy Operations, Inc.
-",-"Enteigy Waterloo Road P.O . Box 756 Port Gibson, MS 39150 Tel 601 437 6299 Charles A. Bottemiller Manager Plant Licensing GNRO-2006/00054 September 28, 2006 U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention :          Document Control Desk

==Subject:==
Technical Specification Bases Update to the NRC for Period Dated September 28, 2006 Grand Gulf Nuclear Station Docket No. 50-416 License No. NPF-29

==Dear Sir and Madam :==

Pursuant to Grand Gulf Nuclear Station (GGNS) Technical Specification 5.5.11, Entergy Operations, Inc . hereby submits an update of all changes made to GGNS Technical Specification Bases since the last submittal (GNRO-2006/00030 letter dated May 15, 2006 to the NRC from GGNS) . This update is consistent with update frequency listed in 10CFR50 .71(e) .
This letter does not contain any commitments.
Should you have any questions, please contact Michael Larson at (601) 437-6685 .
Yours truly, CAB/MJL attachment :        GGNS Technical Specification Bases Revised Pages cc:                 (See Next Page)

GNRO-2006/00054 PAGE 2 Compton        J. N.                                           (w/o)
Levanway       D. E.   (Wise Carter)                           (w/a)
Revnolds       N. S.                                           (w/al 1 Smith        I L. J. I (Wise Carter)                         I (w/a) 1 NRC Senior Resident Inspector Grand Gulf Nuclear Station Port Gibson, MS 39150 U.S. Nuclear Regulatory Commission          ALL LETTERS ATTN: Dr. Bruce S. Mallett (w/2) 61 1 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 U.S. Nuclear Regulatory Commission          ALL LETTERS - COURIER ATTN: Mr. Bhalchandra Vaidya, NRWDLPM (w/2) DELIVERY (FEDEX, ETC.)
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ATTACHMENT to GNRO-2006/00054 Grand Gulf Technical Specification Bases Revised Pages dated September 28, 2006 LDC#     BASES PAGES AFFECTED                         TOPIC of CHANGE 06032  B 3 .6-87, 87a            Revises the wording to provide clarification to TS SR 3.6 .4 .1 .3 and SR 3.6 .4 .1 .4 .
06039  B 3 .8-47                 Revises Diesel Fuel Oil testing ASTM testing standard references .

Secondary Containment B 3 . 6 . 4 .1 BASES SU RV E I LLANC E      SR      3.6, 4 . 1 . 3 and SR              3 . 6 . 4.1.4 REQUIREMENTS
( c o n t i nued 1  The SGT System e x h a u s t s t h e secondary c o n t a i n m e n t atmosphere t o t h e e n v i r o n m e n t t h r o u g h a p p r o p r i a t e t r e a t m e n t equipment.
To e n s u re t h a t a l l f i s s i o n p r o d u c t s a r e t r e a t e d , SR 3.6.4.1.3 v e r i f i e s t h a t t h e SGT System w i l l r a p i d l y e s t a b l i s h and m a i n t a i n a p r e s s u r e i n t h e secondary c o n t a i n m e n t t h a t i s 1 ess t h a n t h e l o w e s t p o s t u l a t e d p r e s s u r e e x t e r n a l t o t h e secondary c o n t a i n m e n t boundary.
SR 3.6.4.1.4 d e m o n s t r a t e s t h a t each OPERABLE SGT subsystem can m a i n t a i n a reduced p r e s s u r e i n t h e secondary c o n t a i n m e n t s u f f i c i e n t t o a l l o w t h e secondary c o n t a i n m e n t t o be i n t h e r m a l e q u i l i b r i u m a t s t e a d y s t a t e c o n d i t i o n s . The t e s t c r i t e r i on s p e c i f ied by SR 3 . 6 . 4 . 1 . 4 in c l udes an a1 1 owance f o r b u i l d i n g d e g r a d a t i o n between performances o f t h e s u r v e i l l a n c e . This allowance represents a d d i t i o n a l b u i l d i n g i n - e a k a g e o f 125 scfm.
As d i s c u s s e d i n B 3.6.4.2, t h e SGT System has t h e c a p a c i t y t o m a i n t a i n secondary c o n t a i n m e n t n e g a t i v e p r e s s u r e assuming t h e f a i l u r e o f a l l non q u a l i f i e d l i n e s 2 i n c h e s and s m a l l e r p l u s o t h e r analyzed f a i l u r e s .             The number and s i z e o f t h e s e assumed f a i l u r e s can v a r y as p e n e t r a t i o n s a r e added o r removed f r o m t h e secondary c o n t a i n m e n t boundary. To a c c o u n t f o r t h e absence o f t h e s e assumed f a i l u r e s u n d e r t e s t c o n d i t i o n s t h e t e s t c r i t e r i a s p e c i f i e d by SRs 3.6.4.1.3 and 3.6.4.1.4            a r e m o d i f i e d . These f a i l u r e s c o u l d i n c r e a s e secondary c o n t a i n m e n t i n - l e a k a g e by a p p r o x i m a t e l y 300 scfm.
To a c c o u n t f o r t h i s a d d i t i o n a l i n - l e a k a g e , t h e r e q u i r e d vacuum l e v e l o f SR 3.6.4.1.3 i s m o d i f i e d t o r e q u i r e t h a t t h e secondary c o n t a i n m e n t can be drawn down t o 2 0.311 i n c h e s o f vacuum w a t e r gauge i n 180 seconds. For t h e same reason, t h e r e q u i r e d vacuum l e v e l o f SR 3.6.4.1.4 i s a l s o m o d i f i e d t o r e q u i r e secondary c o n t a i n m e n t be m a i n t a i n e d 2 0 . 3 1 1 i n c h e s o f vacuum w a t e r gauge f o r 1 hour u s i n g one SGT subsystem a t a f l o w r a t e 5 4000 cfm. The vacuum l e v e l used f o r t h e s e s u r v e i l l a n c e s r e p r e s e n t s t h e minimum r e q u i r e d t o e n s u r e t h a t t h e i n t e g r i t y o f t h e SGT system boundary w i l l meet i t s d e s i g n r e q u i r e m e n t o f r e a c h i n g ( w i t h i n 180 seconds) and m a i n t a i n i n g 1 0 . 2 5 i n c h e s of vacuum w a t e r gauge f o l l o w i n g a p o s t u l a t e d a c c i d e n t when combined w i t h t h e assumed f a i l u r e s .
The p r i m a r y p u r p o s e o f t h e s e SRs i s t o ensure secondary c o n ta i n me n t boundary i n t e g r i t y . The secondary purpose o f (continued 1 GRAND GULF                                         B 3.6-87                                                  LDC 06032

Secondary Containment B 3.6.4.1 BASES SURVEILLANCE SR 3.6.4.1.3             and SR 3 . 6 . 4 . 1 . 4    (continued)
REQUIREMENTS t h e s e SRs i s t o e n s u r e t h a t t h e SGT subsystem, b e i n g used f o r t h e t e s t , f u n c t i o n s as designed. There i s a s e p a r a t e LCO 3.6.4.3 w i t h S u r v e i l l a n c e Requirements w h i c h serves t h e p r i m a r y purpose o f e n s u r i n g OPERABILITY o f t h e SGT system.
SRs 3.6.4.1.3 and 3.6.4.1.4                       need n o t be p e r f o r m e d w i t h each SGT subsystem. The SGT subsystem used f o r t h e s e S u r v e i l l a n c e s i s s t a g g e r e d t o ensure t h a t i n a d d i t i o n t o t h e r e q u i r e m e n t s o f LCO 3.6.4.3, e i t h e r SGT subsystem w i l l p e r f o r m t h i s t e s t . The i n o p e r a b i l i t y o f t h e SGT system does n o t n e c e s s a r i l y c o n s t i t u t e a f a i l u r e o f t h e s e S u r v e i 11 ances r e 1 a t i v e t o t h e secondary c o n t a i n m e n t OPERABILITY. O p e r a t i n g e x p e r i e n c e has shown t h e secondary c o n t a i n m e n t boundary u s u a l l y passes t h e s e S u r v e i l l a n c e s when p e r f o r m e d a t t h e 18 month Frequency. T h e r e f o r e , t h e Frequency was concluded t o be a c c e p t a b l e f r o m a r e l i a b i l i t y standpoint.
REFERENCES   1.        UFSAR, S e c t i o n 15.6.5.
: 2.        UFSAR, S e c t i o n 15.7.4.
GRAND GULF                              B 3.6-87a                                             LDC 06032

Diesel Fuel O i l , Lube O i l , a n d S t a r t i n g Air B 3.8.3 BASES SURVEILLANCE      2ifLuLu REQUIREMENTS (continued 1 The t e s t s o f fuel o i l p r i o r t o a d d i t i o n t o the storage tanks are a means of determining whether new fuel o i l i s of the appropriate grade a n d has n o t been contaminated w i t h substances t h a t would have a n immediate detrimental impact on diesel engine combustion a n d operation. I f r e s u l t s from these t e s t s are w i t h i n acceptable l i m i t s , the fuel o i l may be added t o the storage tanks w i t h o u t concern f o r contaminating the e n t i r e volume of fuel o i l i n the storage tanks. These t e s t s a r e t o be conducted prior t o a d d i n g the new fuel t o the storage tank(s1. The l i m i t s a n d applicable ASTM Standards f o r t h e t e s t s l i s t e d i n the Diesel Fuel O i l Testing Program o f Specification 5 . 5 . 9 are t o verify i n accordance w i t h the t e s t s specified i n ASTM D975 (Ref. 6 )
t h a t the sample has a water a n d sediment content o f I 0 . 0 5 v / o , a n d a kinematic v i s c o s i t y a t 40EC of 2 1.9 centistokes a n d 5 4 . 1 centistokes.
These t e s t s a r e required every 92 days f o r fuel o i l i n the storage tanks a n d p r i o r t o a d d i t i o n f o r new fuel o i l by Specification 5.5.9. Failure t o meet a n y of the above l i m i t s i s cause f o r r e j e c t i n g the new fuel o i l , b u t does n o t represent a f a i l u r e t o meet t h e LCO since the fuel o i l i s n o t added t o the storage tanks.
F o l l o w i n g the i n i t i a l new fuel o i l sample, the fuel o i l i s analyzed t o e s t a b l i s h a n impurity level of < 2 mg/100 m l when t e s t e d i n accordance w i t h ASTM 2274-70 (Ref. 6 ) . These a d d i t i o n a l analyses are required by Specification 5 . 5 . 9 ,
Diesel Fuel Oil Testing Program, t o be performed w i t h i n 7 d a y s following a d d i t i o n . The 7 day period i s acceptable because the fuel o i l properties of i n t e r e s t , even i f n o t w i t h i n stated (continued)
G R A N D GULF                              0 3.8-47                                     LDC 06039}}