ML20059F330
| ML20059F330 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/29/1990 |
| From: | Boyle M Office of Nuclear Reactor Regulation |
| To: | Mroczka E CONNECTICUT YANKEE ATOMIC POWER CO., NORTHEAST NUCLEAR ENERGY CO. |
| Shared Package | |
| ML20058K974 | List: |
| References | |
| TAC-68566, NUDOCS 9009110181 | |
| Download: ML20059F330 (2) | |
Text
p
~
l
'o August 29, 1990
- Docket No. 50-245 Mr. Edward J. Mroczka Senior Vice President 1
Nuclear Engineering and Operations
)
Connecticut Yankee Atomic Power Company Northeast Nuclear Energy Company
)
P. O. Box 270
-Hartford, Connecticut 06141-0270
Dear Mr. Mroczka:
SUBJECT:
SAFETY EVALUATION OF STATION BLACK 0UT RESPONSE - MILLSTONE NUCLEAR
)
POWER STATION, UNIT NO. 1 (TACNO.68566)
By letters dated April 17, and May 30, 1989, and March 30, 1990, Northeast Nuclear Energy Company (NNECO) submitted information in response to the
. Station Blackout Rule, 10 CFR 50.63. The response was reviewed b contractor Science Applications International Corporation (SAIC) y the NRC's and by the NRC staff.
In addition, a site audit was conducted by a joint NRC/SAIC team
~
during the period July 18 - 21, 1989. Enclosed is our safety evaluation and the SAIC technical evaluation report on the ability of Millstone Unit I to withstand a station blackout.
We find the response and proposed method of dealing with a station blackout to be acceptable provided that NNECO commit to make the modifications, procedure changes and calculations discuss'd in the safety evaluation and technical-e reports.
In accordance with 10 CFR 50.63(c)(4), this commitment and the schedule for implementation should be provided within 30 days of receipt of this letter. NNECO should maintain the calculations and other supporting documentation supporting the Millstone Unit I station blackout assessment for further inspection as may be undertaken by the NRC to verify conformance with 10 CFR 50.63.
Sincerely,
/s/
L Michael L. Boyle, Senior Project Manager Project Directorate I-4 Division cf Reactor Projects - I/II o
Office of Nuclear Reactor Regulation
Enclosures:
As stated cc w/ enclosures:
i r
L See next page DISTRIBUTION NkhhSkNb NRC & Local PDRs Plant File 5.Varga(14E4)
B. Boger (14A2)
S. Norris M. Boyle P. Tam j.
OGC E. Jordan (MNBB3302)
ACRS(10)
E. Wenzinger (RI)(13H3 )
~
L W I-4 PM:PDI-4 MfF PMW9fM+
D:
SistFtr Mgoyle:jkd PWWWF JStol l
$6?f/90-8 /M/90 M
g /g -
l 9009110181 900829
\\
AOCK0500g5 DR g
co
- a. -
4 L {, ; TJ h
. ~
Mr. Edward J. Mroczka Millstone Nuclear Power Station i
Northee t Nuclear Energy Company Unit No. 1 cc:
Gerald Garfield, Esquire R. M. Xacich, Manager Day, Berry and Howard Generation Facilities Licensing Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 i
Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 W, D. Romberg, Vice President D. O. Nordquist Nuclear Operations Director of Quality Services Northeast Utilities Service Company Northeast Utilities Service Company 1
Post Office Box 270 Post Office Box 270 Hartford, Connecticut 06141-0270 Hartford, Cont.ecticut 06141-0270 Kevin McCarthy, Director Regional Administrator Radiation Control Unit Region I Department of Environmental Protection U. S. Nuclear Regulatory Commission State Office Building 475 Allendale Road Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406 1
Bradford S. Chase, Under Secretary First Selectmen Energy Division Town of Waterford Office of Policy and Management Hall of Records 80 Washington Street 200 Boston Post Road Hartford, Connecticut 06106-Waterford, Connecticut 06385 1
S. E. Scace, Nuclear Station Director W. J. Raymond, Resident Inspector j
Millstone Nuclear Power Station Millstone Nuclear Power Station Northeast Nuclear Energy Company c/o U. S. Nuclear Regulatory Commission Post Office Box 128 Post Office Box 811 Waterford, Connecticut 06385 Niantic, Connecticut 06357 J. P. Stetz, Nuclear Unit Director Millstone Unit No. I t.
Northeast Nuclear Energy Company Post Office Box 128 Waterford, Connecticut 06385 i
L l
a V
- -