ML18151A106
| ML18151A106 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 10/08/1987 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 87-570, NUDOCS 8710150243 | |
| Download: ML18151A106 (3) | |
Text
VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIBGINIA 23261 W. L. STBWABT VxcB PREBIDE>l'T NUCLBAB 0PEBAT10"8
- October 8, 1987 U. s. Nuclear Regulatory O'mni ssim Attn: I)*x:nment cart:rol Desk Washirgtm, D.C.
- 20555 Gentlemen:
VIRID{IA ET& :IRLC AND R'.JrlER ~
SCllm RNm smTiaf tmTS 1 AND 2
. NRC INSPECl'Iaf REEtRl! R>. 50-28U86-36 Serial.No.
NO/En'S :vlh Dx:ket Nos.
License Nos.87-570 R3 50-280 50-281 m:R-32 DPR-37 We have reviewed ya.ir letter of Septeni:>er 8, 1987, in refererx:e to the Notice of Violation is.sued with Inspection Report 50-281/86-36 an Mardi 2, 1987. ~
additional response to the Notice of Violation is in the attachment.
We :request that ya.ir :reevaluatim of this violation be postponed, perrlin;J resolution of the tedmical issue by NRR.
'!he basis for our :request is provided in the attadmlent.
If you have arr:/ further questions, please contact. us.
Very truly yoors,
- ~~
W. L. stewart Attachment c:x:: u. s. Nuclear Regulatory o:mnissim Region II 101 Marietta street, N. W.
SUite 2900 Atlanta, GeoJ:gia 30323 Mr. W. E. Hollarn NRC Senior Resident Inspector SUrcy Pael:' station
~bJ0150243 871008 Q
ADOCK 050002St PDR
1987 NRC ClHo!ENI':
DlrJ.DJ the Nuclear Regulato:cy o:,m,i ssion (NRC) inspection corxlucted on Noveni:>er 13-20, 1986 an::l Februa:cy 9, 1987, a violation of NRC requirements was
- identified.
'!he violation involved failure to prq>erly establish ccnlitians to perfonn the Type A IlRI'.
In acooi:darx:le with the "General statement of Policy ani Procedure for NRC Enforcement Acticms," 10 cm Part 2, AR;>ernix c (1986), the violatiai is listed below:
10 cm 50 AR;>ernix J, Paragrai:n II defines a Type A test as a test
. interned to measure the primary containment overall integrated leakage rate obtained by a sumration of leakage thralgh
- all potential leakage paths irx:l~ valves, fittin;Js,-
-ani carp:>nents
- which
- penetrate contaimnent.
Paragraii1 III.A.1. (d) :requires that fluid systems that are part of the reactor coolant pressure bcurrlary an::l are ~
directly to the oontai.rnnent at:IoosJ;nere tm:ler post-acx:ident oonlitions shall be q:ened or vented to the oontainnent a~
prior to an::l duri.rg the Type A test.
All vented systems nust be drained of water to the extent necessacy to assure exposure of the contairment isolation valve to canta.i.nment air test pressure an::l to assure they will be subjected to the post-acx:ident differential pressure.
systerrs that are nonnal.ly filled with water am operating un::ler post-acx:ident con:litions are not required to be vented; however, their c:x>ntairnnent isolation valves nust be Type C _tested.
. Paragraiil III. c :requires that contairnnent isolation valves be Type C tested to neasure their leakage rate by pressurizin:J with air or nitrogen unless the valve is pressurized with fluid fran a seal system.
Tedmical Specification, Table 3. 8-2, lists the contaimnent isolation valves ani specifies whidl ones are exenpt fran Type c testin:J.
SUdl exerption signifies that the valves have :received credit for a water seal ani are not CX11Siderm a credible leakage path for the oontainment atna;plere.
Table 3.8-2 irx:lmes the isolation valves for Penetrations No. 46, 63, an::l 66 through 71 ani does not exenpt them fran Type C testiDJ.
- Calt:rai:y to the above, the licensee failed to either properly vent an::l drain Peneb:aticms No.
46, 63, 64, an::l 66 thralgh 71 durin;J the pe.rfcmnarx:ie of the NoYaliJer 1986,
- Type A test ai Unit 2, or to d.etennine the overall integrated leakage rate by the sunmation of the leakages cbtained duriD:J the Type C testi.rg of such penetrations to the* results cbtained durin;J the CIIRl'.
'I.his is a Severity level 'IV violation (SUR;>lement I).
_ 1. Admission or denial of the alleged violation:
We believe a differerx:e in intel:pretation has created an issue requirirg resolution by NRR.
To :resolve this issue will* require a sul:lnittal to the Offiee of Nuclear. Reactor Regulation (NRR) for tedmical evaluatiai.
Until that su1:lnittal an:i NRR's tectmical evaluation are ccuplete, '{,i,18 feel that your :reevaluation of the violation shcw.d be p:stpJned.
- 2.
Reason for the violation:
'lhe tedmical issue cited in the violation is the requirement to vent am drain penetrations durirg Type A leak rate testirg or il'ci.u:Je the c!R)rq>riate Type c leakage penalty.
Yoor ootice of violation in:iicates that any penetration listed in Table 3. 8-2 of the Tedmical ~ifications subject to Type c testirg nust also be vented am drained durin:J the Type A test.
SUdl a requirement is not fam in either 10 CFR 50 ~
J or the Teclmical Specifications.
Paragrapl III.A.1. (d) of~
J states that system; oonnally filled with water am q,eratin;J umer post-acx::ident c:on:litions need :oot be vented; l"lcMever, their containment isolation valves must be Type c tested.
'!he contairnnent testirg of Unit 2 was in can-pliance with this requirement.
We believe a difference in the interpreta-tion of the 10 CFR 50 ~
J requirements has -created this unresolved tedmical issue *
- 3.
'!he corrective steps that have been taken am the resu1 ts achieved:
To date no specific corrective actions have been taken.
Telei;none calls to NRR am the Regional office have been initiated to disc,JSS the basis for the violation am the evaluation irx:hded in the enclosure to the NRC letter fran J. Nelson Grace to W. L. Stewart, dated September 8, 19_87.
- 4.
'!he corrective steps that will be taken to avoid further violations:
To prevent. further misurrlerst:aminJs in this
- area, '\\li,18 interrl to provide the technical basis for detennining that the specific penetrations in
- question do q,erate urner acx::ident ccnlitioos am are imee6 normally filled with water.
'!he tedmical basis will be sul::mitted by Jarruary 30, 1988 in canjurction with a SUR>lement to oor July 23, 1987 Tedmical Specification sutmittal (Serial No.87-375), whlch will anootate those valves :oot subject to ~
C testin:J as 't,i,1811 as those valves which are q,erat.in:J umer acx::ident cc:nlitioos am are normally filled with water aIXl no Type C penalty required.
Aalitionally, after the technical evaluation has been ccupleted by NRR loJe interrl to sul::mit an. exenption request ~
the NcweniJer 1986, Type A "as-fc:un:l" test results for the next scheduled Type A test on unit 2.
- 5.
'!he date when full cgrpliance will be achieved:
Revisions to oor Type "A" Integrated leak Rate Test Program, will be made as required, after NRR's technical evaluation is ocmplete.