ML19094A142
| ML19094A142 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 08/26/1977 |
| From: | Stallings C Virginia Electric & Power Co (VEPCO) |
| To: | Case E, Reid R Office of Nuclear Reactor Regulation |
| References | |
| Download: ML19094A142 (3) | |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 Mr. Edson :G. Case,.: l\\cting Office of..Nuclear. Reactor.Regulatio: *
- Attn: ~r. :R. :W. Reid, Chief Operating.Reactors Branch.
- u. : S
- Nuclear:. Regulatory. Commis sio, *.
Washington~ : D. : C.
20555
Dear ~r. Case:
Ser.ial ijo. 372
. FR/MLB/RWC/EJI,:krb Docket Nos. 50-280 50-281 Licens.e Nos. DPR-.32 DPR-37 f!<egqJ~~ci!'Yl SUPPLEMENTAL TNFOEMAT MENT. T0 THE OPERATING LICENSE.TEGHNICAt:s ECIFH!ATIONS.. CHANGE NO. 57
- .*.suRRY<POWERiSrATION:*uNITS 1 AND 2 Pursuant to 10 CFR 50.59,.theVirginia Electric and.Power Company, in our.. letter of August 9, 1977' (Serial. ~fo. 3.44), requested an: amendment to Opera-ting Licenses:DPR-32 and.DPR~37, forithe,SurryPowet Station; Ut1.its ijo. 1 and.2 *
. The amendment.requested:was a*change,to the.Technical.Specifications, designated as Change.ijo.,57,:.which was based on anevaluationof*.the:impact of higher steam generator* tube.* plugging levels. on* the, currently applicable non-L0GA safety ana-lyses.'..However, the. amendment did not include. any,Technical*. Specifications changes or,.reanalysis associated* with*. the impact. of higher steam generator tube plugging on LOCA-ECCS performam;:.e., This::*was to. be, sent. in, as supplemental infor-mation;* at a later date.
- Accordingly, transmitted*. herewith.as.Attachments. 1 and_.2, are (1) a reanalysis of the impact of.higher. steam.. generator tube plugging, up,to a level of 25%, on the limiting br.eak LOCA.;.ECCS case (Cn=:=0~4), and *.c,2).. the. associated changes.to.the.Technical. Specifications (including,. for *complet.enessthe changes already* transmitted in. the* August. 9,. 197T amendment) *... The results* of the nor-
. mally n0n.;,.limiting break cases (Cj)=:=0~.6 and: l~O) will.be provided.as. supplementary information in the. near futU1;:e *.. However~. j_t is not: anticipated. that this infor-mation will* necessitate* additional changes. to. the Technical. Specifications.
The LOCA~EGCS. analysis prov-ided in our letter of March:.4,. 1977, Serial ijo. 219/082776 remains applicable for.steam.generator,tube.. plugg:i!ng, up to a level of. 19%. for Unit ijo *. 1 and 20%.for Unit. ijo. :2.
The* actuaLsteam generator tube plugging leveL as of this date. is. less than. the above.. limits of. the. currently applicable analys:i:s *. The reanalysis.. and associated. changes: in the:.Technical Speci-fications *provided.in.the Attachments, aleng. with our.previously-referenced sub-mittal. for.thenon-LdCA analysis justd.fies'.operation.withup.to 25%.of the steam generator.;. tubesibeing plugged~
All changes have.been:.reviewedeby both the Station:Nuelear Safety and Operating. Committee and. the. System *.Nuclear Safety and Operation.. Committee.
Fur-ther' it has heen' determined that these 'changes do not involv.e. an unreviewed safety question.. as defined in *10 CFR 50.59.
'JU e
~,
VIRGINIA ELECTRIC AND POWER COMPANY TO
'fv,lr. Edson G. Case, Acting. Director.
Page 2 Should you, have any.. q:uestions.. or. co1!llllents,, we, would... be,most. happy to*meetwith:youat.you:i::earliest convenienGe.
Very truly yours,*
zl;. n1. \\~zzd~o/i
- C. :M. Stallings Vice. President-Power Supply and Production:Qperations Attachments*
cc:
'fv,lr. James:P. O'Reilly, Director Office. of:. Inspection and, Enforcement
(SEAL)
Attest:
.D. A.
COMMONWEALTH OF VIRGINIA)
) :S~S~
CITY OF RICHMOND
)
.Before me, Robert :M.. Neil, a Notary.*Public, in and for the City and Commonwealth aforesaid, on the. 26th day of August, 1977, personally appeared. C *. M. Stallings and :D.. A~ Hillsman,.,Jr., who being duly sworn, made oath*and said (1) that they are Vice President - Power Supply and Production Operations*and Assistant Secretary, respectively, of the Virginia Electric and Power Company, (2) that they are duly..authorized to execute and file the.foregoing Amendment.in behalf of that.Company, and (3) that the statements in the Amendment. are*true to the best of their knowledge and belief~
(SEAL)
Given under my hand and notarial seal this 26th day; of August, 1977.
My Commission expires January 20, 1981.,
~//
- /
- ~
.. *I?:?~?
- Robert :Me Neil Notary Public