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| issue date = 05/26/1981
| issue date = 05/26/1981
| title = Discusses 810801 Completion Date for Submittal of Final Response to NRC 810227 Request for Addl Info Re C-E Owners Group Final Rept Re Asymmetrical LOCA Loads.Seismic Analysis for Load Combinations Is Needed
| title = Discusses 810801 Completion Date for Submittal of Final Response to NRC 810227 Request for Addl Info Re C-E Owners Group Final Rept Re Asymmetrical LOCA Loads.Seismic Analysis for Load Combinations Is Needed
| author name = LUNDVALL A E
| author name = Lundvall A
| author affiliation = BALTIMORE GAS & ELECTRIC CO.
| author affiliation = BALTIMORE GAS & ELECTRIC CO.
| addressee name = EISENHUT D G
| addressee name = Eisenhut D
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| addressee affiliation = NRC OFFICE OF NUCLEAR REACTOR REGULATION (NRR)
| docket = 05000255, 05000285, 05000317, 05000318, 05000336
| docket = 05000255, 05000285, 05000317, 05000318, 05000336
Line 16: Line 16:


=Text=
=Text=
{{#Wiki_filter:1\. ARTHUR E. LUNDVALL, .JR. ** CHARLES CENTER* P.O. BOX 1475 *BALTIMORE, MARYLAND 21203 26, 1981 VICE PRE:SIOE:NT SUPPLY Office of Nuclear React0r Regulation U. s*. Nuclear Regulatory Commissi'on Washington, D. C. 20555 . -Attn: Mr. D. G. Eisenhut, Director Division of Licensing  
{{#Wiki_filter:1\.
          '~*
CHARLES CENTER* P.O. BOX 1475 *BALTIMORE, MARYLAND 21203 26, 1981 ARTHUR E. LUNDVALL, .JR.
VICE PRE:SIOE:NT SUPPLY Office of Nuclear React0r Regulation U. s*. Nuclear Regulatory Commissi'on Washington, D. C. 20555                                   . -
Attn:       Mr. D. G. Eisenhut, Director Division of Licensing


==Subject:==
==Subject:==
Calvert Cliffs Nuclear Powe nt Units Nos *. 1 & 2, Dockets Nos. 50-317 & 50-318 Palisades Nuclear. Power Plant, Docket No. 50-255 Fort Calhoun Nuclear Power Plant, Docket No. 50-285 Millstone*
Calvert Cliffs Nuclear Powe                 nt Units Nos *. 1 & 2, Dockets Nos. 50-317 & 50-318 Palisades Nuclear. Power Plant, Docket No. 50-255 Fort Calhoun Nuclear Power Plant, Docket No. 50-285 Millstone* Nuclear Power Plant Unit No. 2, Docket No. 50-336
Nuclear Power Plant Unit No. 2, Docket No. 50-336  
                                  "~~:pnmetr:i.'C' ~CA '-LOa~s \I~tformat:tort      'Request -
'Request -References*: (a). NRC letter dated 1/25/78 from Mr. V. Stello, Jr., to All PWR Ltcensees Regarding Asymmetric LOCA Loads *. Gentlemen:
References*:       (a). NRC letter dated 1/25/78 from Mr. V. Stello, Jr.,
Cb*r BG&E",letter dated 6/30/80 from Mr._ A. E. Lundvall, Jr., t0 Mr *. D *. G *. Eisenhut, same* subject .. (c r BG&E letter dated 7 /31/80 from* Mr *. A *. E *. Lundvall, Jr., to Mr., D., G._ Eisenhut, same* subject *. . {a,):* NRC l,etter. dated 2}23/i81 from, Mr *. D. M *. Crutchfi'eld to Mr..,. A.".*E-., Lundvall, Jr *. , same subject. In-an eff0rt to respond to the.requirements*
to All PWR Ltcensees Regarding Asymmetric LOCA Loads *.
of Reference (a):, Baltimore Gas and Electri'c, Northeast Uti'liti'es, Consumers*
Cb*r BG&E",letter dated 6/30/80 from Mr._ A. E. Lundvall, Jr.,
Power and the Omaha Publtc Power Di'strict submitted in References
t0 Mr *. D*. G*. Eisenhut, same* subject ..
(.b} and Cc) the Combustion Engineering Owners ,. Group Final Report. Reference (d) required the Combusti'on Engineering Owners-'*
(c r BG&E letter dated 7/31/80 from* Mr *. A*. E *. Lundvall, Jr.,
Group to provide additi0nal information concerning this* report within 90 days of receipt of Reference (d) *. This request for additional information was received on February*
to Mr., D., G._ Eisenhut, same* subject *.
27, 1981. Pursuant to this* request, we prepared preliminary*
                                    . {a,):* NRC l,etter. dated 2}23/i81 from, Mr *. D. M*. Crutchfi'eld to Mr..,. A.".*E-., Lundvall, Jr *. , same subject.
responses, to those quest*i'ons*.
Gentlemen:
listed in Reference* (dr, whiCh' :i:nvobred a clar.ifi'cation or a detailed explanation of* the* methods-and results-presented in References-and (c r. 0ri Apri'l 15-, 1981, the Combusti'on Engineering Users'' Group and their techni*cal consultants*
In-an eff0rt to respond to the.requirements* of Reference (a):,
di'scussed thes*e* preliminary responses with: *meml:i'ers*
Baltimore Gas and Electri'c, Northeast Uti'liti'es, Consumers* Power and the Omaha Publtc Power Di'strict submitted in References (.b} and Cc) the Combustion Engineering Owners ,. Group Final Report. Reference (d) required the Combusti'on Engineering Owners-'* Group to provide additi0nal information concerning this* report within 90 days of receipt of Reference (d) *. This request for additional information was received on February* 27, 1981.
of the NRC Staff. At this meeting, the CE Owner.s*'*
Pursuant to this* request, we prepared preliminary* responses, to those quest*i'ons*. listed in Reference* (dr, whiCh' :i:nvobred a clar.ifi'cation or a detailed explanation of* the* methods- and results- presented in References-rn~r and     (c r. 0ri Apri'l 15-, 1981, the Combusti'on Engineering Users'' Group and their techni*cal consultants* di'scussed thes*e* preliminary responses with:
Group stated that due* to the* time constraints*
      *meml:i'ers* of the NRC Staff. At this meeting, the CE Owner.s*'* Group stated that due* to the* time constraints* inv0lved in resp0nding to the* 108 questions*
inv0l ved in resp0nding to the* 108 questions*
and requests listed in Reference Cd                   r' our submittal could be de;]_ayed unti'l August 1, 1981. Also at that time, we- indicated our int.ent to* submit this*
and requests listed in Reference Cd r' our submittal could be de;]_ayed unti'l August 1, 1981. Also at that time, we-indicated our int.ent to* submit this* response*
response* as, early* as* possible**.
as, early* as* possible*  
 
*. '* 
-                                 .e Mr. D. G*. Eisenhut                       Page 2                   May 26, 1981 At this time, our schedule for submittal remains as previously stated, provided that additional questioning concerning the final report is* held to a minimum.
-.e Mr. D. G *. Eisenhut Page 2 May 26, 1981 At this time, our schedule for submittal remains as previously stated, provided that additional questioning concerning the final report is* held to a minimum. This schedule is also dependent upon a resolution of the outstanding i's sue* of load combinati'on..
This schedule is also dependent upon a resolution of the outstanding i's sue* of load combinati'on.. As di'scussed with your staff at the* Apri'l 15, 19_81, *meeting, load combinations, could si'gni'f'tcantly extend the schedule for completion of this* effort due* to the: lack ofa seismic analysis for fuel (and internals* for some* plantsT. Our presentation" of April 15' 1981, included a discussion of our position, support"ed by a recently issued
As di'scussed with your staff at the* Apri'l 15, 19_81, *meeting, load combinations, could si'gni'f'tcantly extend the schedule for completion of this* effort due* to the: lack ofa seismic analysis for fuel (and internals*
  . Sandia Laboratories *report, that the probability of simultaneous* occurrence of an asymmetric LOCA loading event and a seismi'c event is on the order of lo-1 2 per year; therefore*, the probability* of the occurrence of these*
for some* plantsT. Our presentation" of April 15' 1981, included a discussion of our position, support"ed by a recently issued . Sandia Laboratories  
events :i:s* too small to constder the consequences*. The position presented by* the* CE Owners* Group at the 4/15/81 meeting has* not been formally*
*report, that the probability of simultaneous*
occurrence of an asymmetric LOCA loading event and a seismi'c event is on the order of lo-1 2 per year; therefore*, the probability*
of the occurrence of these* events :i:s* too small to constder the consequences*.
The position presented by* the* CE Owners* Group at the 4/15/81 meeting has* not been formally*
addressed by* the staff!.. It i's in our mutual best i'nterest to accelerate.
addressed by* the staff!.. It i's in our mutual best i'nterest to accelerate.
ef'!forts*
ef'!forts* to resolve* thi's* issue~ We: are* prepared to discus*s, this, tssue* wi'th.
to resolve* thi's*
you* a,t your earliest convenience*..
We: are* prepared to discus*s, this, tssue* wi'th. you* a,t your earliest convenience*..
* cc:     Ji. A*. Btddi'son-~ Esquire:*
* cc: Ji. A *.
* G*. 'l" *. Tr.owori:dge.,
Esquire:*
* Esquire Mn *. *E'~ L. Conner~ Jr *.
* G *. 'l" *. Tr.owori:dge.,
Messrs. P.     W. Kruse - CE G. F. Pratt - Consumers Power Co.
* Esquire Mn *.
A. Purie - Northeast Utiliti"es Co.
L.
S. U. Kahn - Omaha Publtc Power District}}
Jr *. Messrs. P. W. Kruse -CE G. F. Pratt -Consumers Power Co. A. Purie -Northeast Utiliti"es Co. S. U. Kahn -Omaha Publtc Power District}}

Latest revision as of 14:08, 3 February 2020

Discusses 810801 Completion Date for Submittal of Final Response to NRC 810227 Request for Addl Info Re C-E Owners Group Final Rept Re Asymmetrical LOCA Loads.Seismic Analysis for Load Combinations Is Needed
ML18046A692
Person / Time
Site: Millstone, Calvert Cliffs, Palisades, Fort Calhoun  Entergy icon.png
Issue date: 05/26/1981
From: Lundvall A
BALTIMORE GAS & ELECTRIC CO.
To: Eisenhut D
Office of Nuclear Reactor Regulation
References
NUDOCS 8106030254
Download: ML18046A692 (2)
v • d • e


Text

1\.

'~*

CHARLES CENTER* P.O. BOX 1475 *BALTIMORE, MARYLAND 21203 26, 1981 ARTHUR E. LUNDVALL, .JR.

VICE PRE:SIOE:NT SUPPLY Office of Nuclear React0r Regulation U. s*. Nuclear Regulatory Commissi'on Washington, D. C. 20555 . -

Attn: Mr. D. G. Eisenhut, Director Division of Licensing

Subject:

Calvert Cliffs Nuclear Powe nt Units Nos *. 1 & 2, Dockets Nos. 50-317 & 50-318 Palisades Nuclear. Power Plant, Docket No. 50-255 Fort Calhoun Nuclear Power Plant, Docket No. 50-285 Millstone* Nuclear Power Plant Unit No. 2, Docket No. 50-336

"~~:pnmetr:i.'C' ~CA '-LOa~s \I~tformat:tort 'Request -

References*: (a). NRC letter dated 1/25/78 from Mr. V. Stello, Jr.,

to All PWR Ltcensees Regarding Asymmetric LOCA Loads *.

Cb*r BG&E",letter dated 6/30/80 from Mr._ A. E. Lundvall, Jr.,

t0 Mr *. D*. G*. Eisenhut, same* subject ..

(c r BG&E letter dated 7/31/80 from* Mr *. A*. E *. Lundvall, Jr.,

to Mr., D., G._ Eisenhut, same* subject *.

. {a,):* NRC l,etter. dated 2}23/i81 from, Mr *. D. M*. Crutchfi'eld to Mr..,. A.".*E-., Lundvall, Jr *. , same subject.

Gentlemen:

In-an eff0rt to respond to the.requirements* of Reference (a):,

Baltimore Gas and Electri'c, Northeast Uti'liti'es, Consumers* Power and the Omaha Publtc Power Di'strict submitted in References (.b} and Cc) the Combustion Engineering Owners ,. Group Final Report. Reference (d) required the Combusti'on Engineering Owners-'* Group to provide additi0nal information concerning this* report within 90 days of receipt of Reference (d) *. This request for additional information was received on February* 27, 1981.

Pursuant to this* request, we prepared preliminary* responses, to those quest*i'ons*. listed in Reference* (dr, whiCh' :i:nvobred a clar.ifi'cation or a detailed explanation of* the* methods- and results- presented in References-rn~r and (c r. 0ri Apri'l 15-, 1981, the Combusti'on Engineering Users Group and their techni*cal consultants* di'scussed thes*e* preliminary responses with:

  • meml:i'ers* of the NRC Staff. At this meeting, the CE Owner.s*'* Group stated that due* to the* time constraints* inv0lved in resp0nding to the* 108 questions*

and requests listed in Reference Cd r' our submittal could be de;]_ayed unti'l August 1, 1981. Also at that time, we- indicated our int.ent to* submit this*

response* as, early* as* possible**.

- .e Mr. D. G*. Eisenhut Page 2 May 26, 1981 At this time, our schedule for submittal remains as previously stated, provided that additional questioning concerning the final report is* held to a minimum.

This schedule is also dependent upon a resolution of the outstanding i's sue* of load combinati'on.. As di'scussed with your staff at the* Apri'l 15, 19_81, *meeting, load combinations, could si'gni'f'tcantly extend the schedule for completion of this* effort due* to the: lack ofa seismic analysis for fuel (and internals* for some* plantsT. Our presentation" of April 15' 1981, included a discussion of our position, support"ed by a recently issued

. Sandia Laboratories *report, that the probability of simultaneous* occurrence of an asymmetric LOCA loading event and a seismi'c event is on the order of lo-1 2 per year; therefore*, the probability* of the occurrence of these*

events :i:s* too small to constder the consequences*. The position presented by* the* CE Owners* Group at the 4/15/81 meeting has* not been formally*

addressed by* the staff!.. It i's in our mutual best i'nterest to accelerate.

ef'!forts* to resolve* thi's* issue~ We: are* prepared to discus*s, this, tssue* wi'th.

you* a,t your earliest convenience*..

  • cc: Ji. A*. Btddi'son-~ Esquire:*
  • G*. 'l" *. Tr.owori:dge.,
  • Esquire Mn *. *E'~ L. Conner~ Jr *.

Messrs. P. W. Kruse - CE G. F. Pratt - Consumers Power Co.

A. Purie - Northeast Utiliti"es Co.

S. U. Kahn - Omaha Publtc Power District

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