ML20236D173
| ML20236D173 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 10/15/1987 |
| From: | Boyle M Office of Nuclear Reactor Regulation |
| To: | Mroczka E NORTHEAST NUCLEAR ENERGY CO. |
| Shared Package | |
| ML20236D176 | List: |
| References | |
| NUDOCS 8710280055 | |
| Download: ML20236D173 (2) | |
Text
_
s Docket No.:
50-245 October 15, 1987 DISTRIBUTION Docket; Files?! MShuttleworth ISAPD File MBoyle Mr. Edward J. Mroczka, Senior Vice President NRC PDR OGC Bethesda Nuclear Engineering and Operations TMurley NThomason Norhteast Nuclear Energy Company JSniezek TBarnaart (4)
Post.0ffice Box 270 Glainas ACRS(10)
Hartford, Connecticut 06141-0270 ERossi OPA DCrutchfield LFMB
Dear Mr. Mroczka:
ORAS FSchroeder
SUBJECT:
EXEMPTION FROM THE REQUIREMENTS OF APPENDIX J TO 10 CFR PART 50, PARAGRAPH III.A.3 Re:
Millstone Nuclear Power Station, Unit No.1 The Commission has issued an exemption from certain requirements of Appendix J to 10 CFR Part 50 in response to your letter dated July 10, 1987.
The exemp-tion pertains to certain requirements of 10 CFR Part 50, Appendix J, " Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors," for all Type A (Containment Integrated Leakage Rate) tests to be performed in accordance l
with the provisions of the American National Standard (ANSI) N45.4-1972, " Leakage l
Rate Testing of Containment Structures for Nuclear Reactors," dated March 16, 1972. This standard requires that containment leakage rate calculations be i
l performed using either the point-to-point method or the total time method.
l In your letter dated July 10, 1987, you requested an exemption to allow use of the mass point method (as provided in ANSI /ANS 56.8-1981). The Commission grants the enclosed exemption to use the mass point method for calculating l
containment leakage, with the explicit condition that such tests be conducted with a minimum test duration of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. The exemption is granted until Section l
III. A.3 of Appendix J is modified. The exemption applies only to the method of calculating leakage by use of the mass point method and not to any other aspects of the tests. A copy of our related Safety Evaluation is enclosed.
The Exemption is being forwarded to the Office of the Federal Register for publication.
Sincerely, Qo2j@@y $N 5
original signed by Michael L. Boyle Integrated Safety Assessment Project Directorate
Enclosures:
Division of Reactor Projects III/IV/V 1.
Exemptions and Special Projects 2.
Safety Evaluations cc w/ enclosure See next page
- See previous concurrence 5%n n
0FC :ISAPD ISAPD*
ISAPD*
SPLB*
- 0GC-Beth*
AD:.R$
_____:____________:_____.______:___________:___________:.__________:____w(
NAME :MShuttleworth MBoyle C0 Thomas : JCraig
- FSIchr der : D utc ield DATE :09/ /87
- 08/21/87 : 08/21/87 :
09/02/87 :09/21/87
- 09Me/87
- 09 CV87 0FFICIAL RECORD COPY
re If a
Mr. Edward J. Mroczka Millstone Nuclear Power Station Northeast Nuclear Energy Company-Unit No. 1 cc:
l Gerald Garfield, Esquire Kevin McCarthy, Directnr Day, Berry & Howard Radiation Control Unit Counselors at Law Department of Environmental City Place Protection Hartford, Connecticut 06103-3499 State Office Building Hartford, Connecticut 06106 j
Wayne D. Romberg Richard M. Kacich, Manager Vice President, Nuclear Operations Generation Facilities Licensing Northeast Utilities Service Company Ntrtheast Utilities Service Company l
Post Office Box 270 Post Office Box 270 i
. Hartford, Connecticut 06141-0270 Hartford, Connecticut 06141-0270 1
Bradford S. Chase, Under Secretary Donald 0. Nordquist, Director l
Energy Division Quality Services Department Office of Policy and Management Northeast Utilities Service Department 80 Washington Street Post Office Box 270 l
Hartford, Connecticut 06160 Hartford,' Connecticut 06141-0270
)
l l
l Regional Administrator, Region I J. Stetz, Plant Superintendent U.S. Nuclear Regulatory Comission Millstone, Unit 1 631 Park Avenue.
Northeast Nuclear Energy Company King of Prussia, Pennsylvania 19406 P. O. Box 128 Waterford, Connecticut 06385 l
Northeast Nuclear Energy Company l
ATTN:
Superintendent Millstone Nuclear Power Station P. O. Box 128 Waterford, Connecticut 06385 Resident inspector c/o U.S. NRC
'l Millstone Nuclear Power Station P. O. Box 811 Niantic, Connecticut 06357 First Selectman of the Town of Waterford Hall of Records 200 Boston Post Road Waterford, Connecticut 06385 l
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