ML20216D434
| ML20216D434 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 06/23/1987 |
| From: | Weiss E NEW ENGLAND COALITION ON NUCLEAR POLLUTION |
| To: | VERMONT YANKEE NUCLEAR POWER CORP. |
| References | |
| CON-#287-3886 OLA, NUDOCS 8706300523 | |
| Download: ML20216D434 (6) | |
Text
.
322G' nELATED CORftbb W DOCKEIED i
USNRC June 23,1987 UNITED STATES OF AMERICA
'87 JS 26 P3 32 !
NUCLEAR REGULATORY COMMISSION OFFR1
-c Before the' Atomic Safety and Licensing Board' 00ChO p.s
, ;H
)~
PRANCH 1
In the Ma tter of
)
n
)
Vermont Yankee Nuclear-
)
Power Corporation
)
Docket No. 50-271+0LA
)-
(Vermont Yankee Nuclear
')
Power Station)
)
j
)-
-i NECNP' S 'SECOND SET OF INTERROGA' TORIES AND DOCUMENT REQUESTS TO THE NRC STAFF
{
The instructions and oefinitions contained -in NECNP's First 1
1
'l Set of Interrogatories and Document Requests to' the NRC Staff 'are 2
adopted and incorporated herein.
1.
Please provide all documents in NRC's possession concerning the Vermont Yankee Containment Safety Study, including but not limited t o, all NRC Staf f/ consultant documents' commenting oon or otherwise evaluating the study, and documents by others ~ comment-ing on or otherwise evaluating the study.
h 2.
Please provide copies of all documents which contain and/or i
present the results of calculations of core melt' progression, containment loads due to severe accidents, and/or-fission product release estimates (source terms) f or the Vermont Yankee Nuclear Power Plant.
3.
Please provide all copies of documents which evaluate the-likelihood and/or magnitude of containment pressurization result-ing from phenomena known as high pressure melt ejection and direct containment heating in BWR Mark I nuclear power plants.-
4.
Please' provide all seismic PRA studies which have been con-ducted on BWR Mark I nuclear power plants.
5.
Please provide all estimates of the. probability of seismic-ground acceleration (i.e., seismic hazard curves) at the Vermont Yankee Nuclear Power Plant.
1 6.
Please provide all documents which evaluate' the ' likelihood and/or mechanism of failure of reactor buildings (i.e., secondary containments) in BWR Mark. I nuclear power. plants as a result' of 8706300523 870623 ADOCK0500g1 g.
DR y
n-l.
loadings imposed'by'or during severe' accidents.
7.: Please provide all documents. which evaluate the likelihood and/or mechanism of failure.of spent' fuel pools.in BWR Mark I nuclear ' power plants as a. result of loadings : imposed-by or during severe accider's.
g 8.
Please-provide all documents which evaluate the fragility. of spent fuel pools'for seismic ground acceleration-induced failures; for BWR Mark I nuclear power plants.
By:
/)_
1. Ellyn, R.
Weiss Npv Counsel for NECNP q
s 1
J
'l l
1 s
June 23,1987 UNITED STATES OF AMERICA NUCLEAR REGULATORY. COMMISSION Before the Atomic Safety and Licensing Board
)
In the Matter of
)
)
Vermont Yankee Nuclear
)
Power Corporation
)
Docket No. 5 0-271 HD LA
)
(Vermont Yankee Nuclear
)
Power Station)
)
)
i NECNP'S SECOND SET OF INTERROGATORIES AND DOCUMENT REQUESTS TO VERMONT. YANKEE NUCLEAR POWER CORPORATION The instructions and definitions contained in NECNP's Fi rst Set of Interrogatories and Document Requests to the Vermont Yankee Nuclear Power Corporation are adopted and incorporated
- herein, 1
1.
Please provide all probabilistic risk assessment (PRA) studies of the Vermont Yankee Nuclear Power Plant conducted by or for Vermont Yankee Nuclear Power Corporation.
Th is request includes PRA studies of all types, whether limited y
or extensive in scope, and regardless of the depth of the j
study.
This request also includes studies of all potential accident initiators (including, but not limited to, loss of I
offsite power, other transients, loss-of-coolant accidents, external initiators such as fire, flood, seismic, aircraft j
crash, etc.).
This request also specifically includes any Individual Plant Evaluation (IPE) f or Vermont Yankee con-ducted pursuant to the NRC's Severe Accident Policy State-ment and/or the IDCOR IPE program.
2.
Please provide all documents which provide estimates of the structural reliability of the Vermont Yankee Nuclear Power Plant spent fuel pool and the s'ructure(s) within t
which the spent fuel pool cooling system is located for loadings which may be imposed by seismic events (both within and exceeding the design-basis earthquake / safe shutdown earthquake) and for loadings which may result. from severe accidents (accidents beyond the plant design basis such as those evaluated in the Vermont Yankee containment Safety Study).
3.
Please provide all documents which comment upon or otherwise evaluate the Vermont Yankee Containment Safety Study.
.p..
2-I.;
4.
Please provide all documents which provide responses to the-comments in documents provided in response to question
- 3, above.
5.
z Please provide a copy of the document YAEC-1564, BWR; Mark I Containment Evaluation - Vermont Yankee, October 1986.
6.
. Please provide. all. documents provided' to Peter R. Davis and Michael L.
Corradini during the conduct of - their review of the Vermont Yankee Containment Safety Study, which was conducted for the State of Vermont, Department of Public Service.
7.
Please provide all estimates of the probability of any seismic ground acceleration value for the Vermont Yankee site which is in the possession of' VYNPC.
8.
Please provide all documents describing. or otherwise.
portraying - (as in the form of drawings, schematics,.etc.)-
the systems required to ensure adequate cooling of spent fuel at the Vermont Yankee Nuclear Power Plant.
.9.
Please provide all documents which provide an estimate of the failure pressure and/or location of the Vermont Yankee Nuclear Power Station under loadings imposed by severe accidents.
10 Please provide copies of all. operating and emergency.
procedures covering the following types of situations:
1.
Venting of the drywell and/or wetwell airspace ~during severe accidents.
2.
Use of the diesel driven fire pump _ for core. coolant injection and/or containment spray.
3.
Coping with station blackout due ' to loss of all AC.or DC power to vital buses.
4.
Responding to earthquakes (including procedures for resetting relays and breakers).
5.
Coping with accidents. involving the' spent fuel' pool,'
including accidents beyond the-design basis (e.g., fuel damage, fuel melting, zirconium. fires, J etc. ).
By:
Ellyn R. Weiss G.
Counsel for NECNP t-
t nunma usse
'87 JUN 26 P3 :33 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION 0FFjCE, d.;Q,r t
00cKi Tu
)
BRAm>
k In'the Matter of
)
)
Vermont Yankee Nuclear
)
Power Corpora, tion-
)
Docket No. 50-271HOLA
~
)
(Vermont Yankee Nuclear
)
Power Station)
)-
)
CERTIFICATE OF SERVICE The undersigned certifies that on June 23, 1987,. "NECNP's Second Set of Interrogatories and Document Requests to: the NRC Staf f and NECNP's Second Set of Interrogatories and-Document' Requests to Vermont Yankee Nuclear Power Corporation" were served on the folowing parties to this case by hand and/or overnight; mail; as designated below:
Charles Bechhoefer, Chairman Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Glenn O.
Br ight
' Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Dr. James H.
Ca rpenter Atomic Safety and Licensing Board Panel U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Secretary of'the Commission Attn:
Docketing and Service Section U. S. Nuclear ' Regulatory Commission Washington, D.C.
20555 Christine N.
Kohl, Chairman Atomic' Safety and Licensing Appeal Board U. S. ' Nuclear Regulatory Commission Washington, D. C. 2 0555
1 (F
l:e f
. George Dean, Esq.
Assistant Attorney General 1
Commonwealth of Massachusetts Department of the Attorney General j
One Ashburton Place
]
Boston,.MA 02108 Daniel J.
Mullett, Es q.
Vermont Department of Public Service 120 State Street
- Montpelier, VT 05602
- Ann Hodgdon, Esq.
3 Of fice of the General Counsel Bethesda U.S. Nuclear Regulatory _ Commission Washington, D.C.
20555 Diana Sidebotham R.F.D.
- 2 Putney, Vermont 05346 j
- Thomas G.
Dignan, Es q.
Ropes & Gray 225 Franklin Street 1
Boston, MA 02110 Gary J.
Edles Atomic Safety and Licensing Appeal Board U.S. Nuclear Regulatory Commission
~
Washington, D.C. 20555 Howard A.
O. M)e r Atomic Safi,y and Licensing Appeal Board U.S. Nuclear Regulatory Commission Washington, D.C. 20555
- by hand
- by Overnight Mail A T.
Ellyn R. We iss L.._