ML20209B987
| ML20209B987 | |
| Person / Time | |
|---|---|
| Site: | 05000000, Diablo Canyon |
| Issue date: | 02/24/1983 |
| From: | Mattson R Office of Nuclear Reactor Regulation |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20209B155 | List:
|
| References | |
| FOIA-86-151 NUDOCS 8303040124 | |
| Download: ML20209B987 (3) | |
Text
.
i UNITED STATES
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Darrell G. Eisenhut, Director, Division of Licensing, NRR MEMDRANDUM FOR:
Roger J. Mattson, Director, Division of System.s Integration, NRR FROM:
DIABLO CANYON - REVIEW 0F COMPONENT C00'.ING WATER SYSTEM SUSJECT:
18, 1983 memorandum, DSI will provide a Safety As requested in your February E.aluation Report (SER) input concerning the design adequacy of the Diablo t'ryon component cooling water system (CCWS) by March 31, 1983. The SER input will address the four concerns identified in your menorandum.
We do not anticipate the need for any further meetings or site visits relating However, we request that DL expedite responses to this issue at this tirre.
frca PG1E to the requests for additional documentation which the applicant cor.nitted to provide during the January 28, 1983 caeting.
These are as follows:N
- dditional discussion and engineering justification for the raxirn assumed leak rate of 200 gpm from the nonseise.ically qualified corp;r.ents in the "C" 1.
loop of the CCWS following an SSE.
(
Reference:
January 28, 1933 meeting transcript at 101).
Additional verification of the design heat receval capability of the CCWS in the varicus accident operating rodes including operator actions required, 2.
and assuming the most limiting single failure with respect to CCWS perfor-This reevaluation is also to include a comparison against the FSAR te,peratures and assurptions for heat removal, and should provide verifica-rance.
tion of the capability of each CCW heat exchanger to handle full flow from all CCW pur.ps.
(
Reference:
January 28, 1953 meeting transcript at 69 through79).
Additional discussion with the applicant may be necessary following our review This may be handled by telephone calls of the responses to the above concerns.
as necessary.
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30kn f. fan de famp A11srurg 4tutral February 22, 1983 William E. Cooper Mr. H. R. Denton, Di rector Project Manager - 5511 Office of Nuclear Reactor Regulation Teledyne Engineering Services U. S. Nuclear Regulatory Commission 130 Second Avenue Washington, D.C.
20555 Waltham, Massachusetts 02254 Mr. R. H. Engelken, Regional Mr. G. A. Maneatis Administrator, Region V Executive Vice President U. S. Nuclear Regulatory Commission Pacific Gas and Electric Co.
1450 Maria Lane, Suite 210 77 Beale Street Walnut Creek, California 94596 San Francisco, California 94106 Gentlemen:
Diablo Canyon Unit I Docket No. 50-275 License No. OPR-76 in Mr. Cooper's February 11 letter, he asked that my name be added to the IDVP distribution list, which is appreciated. However, among the people to be dropped from the list was that of Richard B. Hubbard.
Mr. Hubbard continues to serve as a consultant to counsel for the Governor, and we ask that he continue to receive IDVP documents.
Thank you very much for your cooperation in this matter.
Very truly yours,
JOHN K. VAN DE KAMP Attorney Gene 1 ls Abwwa~
MICHAEL. STRUMWASSER Special unsel to the Attorney General MJS:hs cc:
H. E. Schierling V D. F. Fleischaker, Esq.
R. R. Fray J. Reynolds, Esq./J. R. Phillips, Esq.
E. Denison B. Norton, Esc.
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Darrell G. Eisenhut, Director, Division of Licensing, NRR MMF.A*J3. FOR:
Roger J. Mattson, Director, Division of Systems Integration, NF.R
- 24:
DIABLO CA'iYON - REVIEW 0F C0",?ONENT COOLING WATER SYSTEM
- r. JECT:
is reested in your February 18, ISS3 memorandum, DSI will provide a Safety
ation Fcport (SER) input conccrning the design cdequacy of the Diablo 31, 1983. The SER input
- a co panent cooling water system (CCWS) by March
.,ill address the four concerns identified in your cercrandum.
a da not antici;ste the r.eed for any further neetings or site visits relating Hov.ever, we request that DL expedite responses to this issue at this tire.
fr.f. TSLE to the requests for additional documentation 'nhich the applicant
.itted to prcvide during the January 28, 1983 meeting. These are as follows:
c:
Addit'cral dis:ussion and engineering justification for the maxi. am assumed m
leak rate of 200 gpm from the nonseismically qualified co ponents in the "C" 1.
Ic:p of the CCWS folloaing an SSE. (
Reference:
January 28, 1933 ceeting transcript at 101).
Additional verification of the design heat reroval capability of the CCWS in the varicus accident operating modes including operator actions required, 2.
and assuming the r.ost limiting single failure with respect to CCWS perfor-This retvaluation is also to include a comparison against the FSAR te peratures and assurptions for heat re.Taval, and should provide verifica-rance.
tion of the capability of each CCW heat exchanger to handle full flow from all CCW pumps.
(
Reference:
January 28, 19S3 ceeting transcript at 69 through79).
Additional discussion with the appikcant may be necessary following our review This may be handled by telephone calls of the responses to the above concerns.
as ne:essary.
W blax&%
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Roger J. hattson, Director Division of Systems Integration cc:
H. Denton O. Parr hh
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DCM No.
_ Revision 6
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Data Marc 4 29. I9BS fk k
File No.
40.2.4 x 9.1.11 PACIFIC G AS AND ELECTRIC COMPANY DESIGN CRITERIA MEMDRANDUM Hosgri Response Spectra for Structures. Systems, and C mgonppt(/-- Units 1 and 2 - Olablo Canyon Power Plant.
A Structure, System. or Component:
Prepared by:
E. N. Larson Date 6/2M5 Group e d r/ Supervisor Review 1
vil Date "% -
b - B '%
(Disciphne)
Reviewed by Interfa:Ing Disciplines:
Group Leader / Supervisor E. C. Connell D1 7 Date T ~5 / 23 R. Treslerh
.T/! D Date G
ader/ Supe b
Date I/ 3 Gr a er/ Supe r
T. N. Crawt'ord Hechanical - Instrumentation m
Group Leader / Supervisor
- 5. Aw r-Date
///73 G'HYSC er/ Supervisor E. J. Brady kh! 4 Date /'d -
f}
y a Group Leader / Supervisor
(/
Date Approveo ey:
WD 4~~ y,.Q Department Chief:
R. V. Bettinger Date:
Approved for Project use:
Project Engineer:
G. H.
oore Date:
Page 2 through 8
attached; describing design inputs. Other attachments as indicated below.
with Attachments A, B, C, D, E, F, G H J. & K.
cc:
O Chief, Engineering Quality Control O Project Engineer
~
O Discipline Group Leader (s)/ Supervisor (s)
O Manager, Steam Generation See controlled distribution list.
A Others "FOR !NFonmin og
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CONTROLLED DOCUMENT COVER SHEET 0
0 DCM C - / 7 REVISION 6
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I CONTROLLED COPY Nd. /3Y ISSUED TO:
!iM64fi" Copy #134 "FOR if50RMAI!ON ONI.y"
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U~II DCM No.
Revision 6
Date Marc 4 29. /963 i
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File No.
40.2.4 x 9.1.11 PACIFIC G As AND ELECTRIC COMPANY DESIGN CRITERIA MEMORANDUM Hosgri Response Spectra for Structures. Systems, and C mgon/pt(/-- Units 1 and 2 - Diablo Canyon Power Plant.
A Structure, System, or Component:
Prepared by:
E. N. Larson Date 6/SO/A5 O - 6 7h Group e d r/Sup rvisor Review 1
vil Date (Discipline)
Reviewed by Interfa:Ing Disciplines:
Gr Leader / Supervisor E. C. Connell CA P Date 7 ~5 / ' D I T/! D G
ender / Supe R. Tresler L Date b
/f/ 3 G
ader/ Supe r
T. N. Crawford Date Mechanical - Instrumentation m
Group Leader / Supervisor
- 5. Aw r-Date
///f3' ke,b !ht Date bl G'H9EC er/ Supervisor E. J. Brady y;
Group Leader / Supervisor f/
Date Y
Approved by:
g Department Chief:
R. V. Bettinger Date:
Approved for Project use:
Project Engineer:
G. H.
oore Date:
Page 2 through 8
attached; describing design inputs. Other attachments as Indicated below.
with Attachments A, B, C D, E. F, G, H. J. & K.
ec:
O Chief, Engineering Quality Control O
Project Engineer O
Discipline Group Leader (s)/ Supervisor (s)
O Manager, Steam Generation Others See controlled distribution list.
s c/' ' f 7 l
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senc porm 307 ALLEGATION DATA FOftM u.S. uuCtsAn atoutATony COMMISSION IM8 instructone on reverse e.de RECEIVING OFFICE
- 1. Facility (les) Involved:
meme 1
(if more then 3. or d DiarDl 0 [L ta V O ta hAa r + d 0 'F'O ' 0 0 2 ? i genene. wnte GENEnlC)
- 2. Functional Aree(s) involved:
(Check soproenere t>onteel I operations onelte health and safety construction offsite health and safety safeguards emergency preparedness b other (specifyl If U b VII 3.
Description:
IFl IAI( ls 1516 i A l TIIIOINIJI I 8lNI l(.I#1IlTl 5 fi g g
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131/lJlPi>ITlEMIJI II1MTIEI4idicIT1rlel#lli I I l
- 4. Source of Allegation:
(Check eporopnete t>o )
contractor employee security guard licensee employee news media NRC employee private citizen organization (spec 6fy>
I Ik UWkOU other (specityl MM DD YY
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- 5. Date Allegation Received:
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- 6. Name of Individual trirst two initiere and lest nemet Receiving Allegation:
- 7. Of fice:
g ACTION OFFICE
- 8. Action Office
Contact:
Irires two inities and se, name>
- 9. FTS Telephone Number:
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- 10. Status:
(Check one Open,if followup actions are pending or in progress Closed,if followup actions are completed MM DD YY
- 11. Date Closed:
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RECEIVING OFFICE Docket Number (if applicable)
- 1. Facility (les) Involved:
(N m.
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- 2. Functional Aree(s) Involved:
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Description:
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- 5. Date A!!egation Received:
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Receiving Allegation:
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- 8. Action Office
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trir.: twa initi.i..nd i.., n.m.
- 9. FTS Telephone Number:
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- 10. Status:
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- 11. Date Closed:
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- 22. Remarks:
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- 13. Allegation Number
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feltC Fe 307 ALLEGATION DATA FORM U.S. NUCLEAR KEGULATORY COMMISSION IH #
instructions on reverse s.de RECEIVING OFFICE
- 1. Facility (les) Involved:
INeme Die il e A. m v ov.
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- 2. Functional Area (s) Involved:
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b'Nf fi8L b other tspecity)
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Description:
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- 4. Source of Allegation:
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- 5. Date Allegation Received:
0 4l0 (lA 3
l Receiving Allegation:
Sh 4
- 6. Name of Individual (First two initials and last name)
- 7. Office:
g ACTION OFFICE
- 8. Action Office
Contact:
trirst two initi.is.no i.it n.mei S. FTS Telephone Number:
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- 10. Status:
(Check one, Open, if followup actions are pending or in progress Closed, if followup actions are completed MM 0D YY
- 11. Date Closed:
- 22. Remarks:
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- 13. Allegation Number:
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UNITED STATES i
3e NUCLEAR REGULATORY COMMISSION e
E WASHINGTON, D. C. 20555 Pii p'J APR 121383 MEMORANDUM FOR: Richard H. Vollmer, Director Division of Engineering FROM:
James P. Knight, Assistant Director for Components & Structures Engineering Division of Engineering
SUBJECT:
DIABLO CANYON In accord with your note of April 4,1983 we made inquiries regarding the recent Diablo Canyon allegations contained in the March 28, 1983 letter from David Fleischaker while we were conducting a nheduled audit of work performed by the PGE/Bechtel project group. Three of the allegations:
- 1) Containment Structures Tilting, 2) Classification of Platform and
- 5) Annulus Structural Steel, were directly related to the subject of our audit. For each of the above items we found significant evidence that the allegations as written have little, if any, substance.
Inquiry into most of the other allegations will require staff expertise that was not available during this audit.
I will ask each of the branches in CSE to review the allegations in their area of responsibility in order to establish a consolidated summary of staff positions with regard to these matters. Before proceeding further however, I recommend that we attempt to arrange a conversation between the alleger and the appmriate -technical staf f.
This direct contact would assure that we ft.liy understand the alleger's concerns and would focus the area of inquiry necessary to resolve these issues.
I discussed this recommendation with Bob Purple in San Francisco an'd mentioned it during our exit interview with PG&E. There was general agreement as to the desirability of this step. The DL project manager is currently drafting a l
letter to Mr. Fleischaker proposing that direct communication with the l
alleger be arranged if at all possible.
Based on our initial sample, as well as insights gained by our review of l
activities at Diablo Canyon, the allegations appear to have been made by an individual with only a cursory understanding of the matters alleged.
In 'some instances the allegations related to matters that have been identified as possible problems for some time and are still under review or for which remedial actions are currently being developed.
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APR 12 7'3";"7 Richard H. Vollmer PG&E has mounted an' effort to address each of the allegations but they, like the staff, need greater specificity in order to assure that they fully address the alleged concerns. It is my hope that we can arrange direct communication with the alleger and then make our inquiry into the specific instances that cause the alleger initial concern. Absent that opportunity I vould Intend to include the general area cited in the allegations as part of our ongoing review of the Diablo Canyon project.
S
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Jages P.
night, Assistant Director for Comp nents & Structures Engineering Division of Engineering s/
cc:
H. Denton D. Eisenhut R. Purple L. Chandler G. Lear G. Knighton P. Kuo H. Polk H. Schierling
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