ML17055B143
| ML17055B143 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 01/23/1986 |
| From: | Mangan C NIAGARA MOHAWK POWER CORP. |
| To: | Adensam E Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17055B144 | List: |
| References | |
| (NMP2L-0590), (NMP2L-590), TAC-63425, NUDOCS 8601270189 | |
| Download: ML17055B143 (6) | |
Text
REGULATORY INFORNATION DISTRIBUTIO~YSTEN (RIDS)
(M ACCESSION NBR: 8601270189 DOC. DATE: 86/01/23 NOT*RIZED:
YES FACIL:50-410 Nine Nile Point Nuclear Stations Unit 2i Niagara -Noha AUTH. NANE AUTHOR AFFILIATION MANQANiC. U.
Niagara Nohavk Pouter Corp.
REC IP. NANE RECIPIENT AFFILI*TION ADENSANp E. Q.
BMR Prospect Directorate 3
SUBJECT:
Forwards propri.etarg S5W calculations re d esxgn of faci 1 1 tg containAlent dotOnc ooers Zc response to NRC c one erns disc uss ed in 860108 ltr. Calculations supersede calculations submitted on 851231. Enc I5 Loithheld (ref 10CFR2. 790).
DOCKET ¹ 05000410 DISTRIBUTION CODE:
PB01D COPIES RECEIVED: LTRiENCL +
SIZE: '+
/OO TITLE: Proprietary Review Distribution Pre OL NOTES:
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Q PgQOQ+Q'K NIAGARAMOHAWKPOWER CORPORATION/300 ERIE BOULEVARDWEST, SYRACUSE, N.Y. 13202/TELEPHONE (315) 474-1511 January 23, 1986 (NMP2L 0590)
Ms. El inor G. Adensam, Director BWR Project Directorate No.
3 U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Washington, DC 20555
Dear Ms. Adensam:
Re:
Nine Mile Point Unit 2 Docket No. 50-410 On December 31, 1985 we sent you a copy of two Stone 5 Webster Engineering Corporation's calculations pertaining to the design of the Nine Mile Point Unit 2 containment downcomers.
Enclosed are 15 copies of a set of three calculations that supersede the two calculations previously provided.
Also enclosed are 15 copies of our responses to eight concerns that were discussed in enclosures to the Nuclear Regulatory Commission letter of January 8, 1986.
The Stevenson 8 Associates final report, Review of Structural Adequacy of BWR Mark II Downcomers for Nine Mile Point Unit 2 Nuclear Power Station, is expected within the next few days.
Copies of this report will also be provided to the Nuclear Regulatory Commission in a separate transmittal.
Stone 8 Webster Engineering Corporation has advised us that these calculations contain information which is considered to be proprietary.
In connection with Section 2.790(a)(4) of the Commission's regulations, it is hereby requested that these documents be treated by the Commission as confidential and proprietary and be withheld from public disclosures.
As required by Section 2.790(b)(l),
an affidavit from Stone 5 Webster Engineering Corpor ation is included with these calculations.
Very truly yours, JM:ja Enclosure 1259G C. V. Manga Senior Vice President S60i270i 89, 8 ~OOOy 1 P bo>as 7t PDR ADOCL( D
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R. A. Gramm, NRC Resident Inspector Project File (2)
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I, William C. Drotleff, being duly sworn according to law depose and say I am Vice President of. Stone 6 Webster Engineering Corporation (SWEC) and that:
1.
For the reasons listed
- below, the material contained in SWEC Calculation Nos. MS-1869-2, PX-60012, Rev.
1, and NM(c)-MS-2053-0 in response to the U.S. Nuclear Regulatory Commission (NRC)
Safety Evaluation Report Confirmatory Item 13(i) which is being filed with the NRC by Niagara Mohawk Power Corporation (NMPC) in connection with its license application for Nine Mile Point Nuclear Station - Unit 2, Docket No. 50-410, contains information considered by SWEC to be confidential information containing trade secrets and should be withheld from public disclosure.
2.
In support of its averment that the above-mentioned information is confidential, SWEC provides the following reasons:
a
~
The information sought to be withheld consists of analyti-cal techniques used in the analysis o'f the downcomers, a
design feature of the prima'ry containment.
These tech-niques were developed
'by SWEC.
b.
The subject ma'terial was developed at considerable expen-diture of SWEC resources and is of substantial value to SWEC in the conduct of its business.
These techniques are marketable and their disclosure could have an adverse com-mercial impact on SWEC. It is, accordingly, the customary practice of SWEC to treat such material as confidential commercial information.
c ~
To the best of my knowledge and belief, the identified material is not available from any public source and has not been made available to third parties, except in confidence.
William C. Drotleff, being duly sworn, deposes and says that he has read the foregoing affidavit and the matters stated therein are true and cor-rect to the best of his knowledge, information, and belief.
William C. Drotleff Vice President Stone 6 Webster Engineering Corporation A 1 Sworn and subscribed before me this 22nd day.'of Jaauaxy>,'1986.
O C
1 ROBERT, C. SFIAFIHON ROTARY PIIRIIO OF IIBY IBITB IYly Conn:isa.'on Expires
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