ML20198F506
| ML20198F506 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 12/18/1998 |
| From: | Andersen J NRC (Affiliation Not Assigned) |
| To: | Bowling M, Loftus P NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| TAC-MA1749, NUDOCS 9812280135 | |
| Download: ML20198F506 (5) | |
Text
..-....
Mr. Martin L. Bowling, Jr.
lf-RecovIry Officer - Technical S:rvices rMabr 18,1998 j
Northnst Nuclear Energy Ccmprny c/o Ms. Patricia A. Loftus 3
L Director-Regulatory Affairs P. O. Box 128 Waterford, Connecticut 06385
SUBJECT:
MILLSTONE NUCLEAR POWER STATION, UNIT NO. 3 - REQUEST FOR ADDITIONAL INFORMATION (TAC NO MA1749)
Dear Mr. Bowling:
In a May 7,1998, letter, Northeast Nuclear Energy Company requested a license amendment to revise the Millstone Unit 3 licensing basis related to the reactor water storage tank (RWST).
)
l The proposed revision to the Millstone Unit 3 licensing basis would address the addition of the
- dose from RWST backleakage into the design basis loss-of-coolant accident analysis, and Chapter 15 of the Final Safety Analysis Report.
l
-As discussed with George Papanic of your staff on December 2,1998, the staff requires additionalinformation to complete its review of the license amendment request. A mutually I
i agreeable target date of January 15,1999, for your response was established. If l
circumstances result in the need to revise the target date, please call me at the earliest opportunity.
Sincerely, Original signed by:
James W. Andersen, Project Manager L
Millstone Project Directorate Division of Reactor Projects - 1/11 l-Office of Nuclear Reactor Regulation Docket No. 50-423 e
Enclosure:
Request for AdditionalInformation cc w/ encl: See next page L
i DISTRIBUTION:
l
\\SeekstElle; i
PUBOC""
l MSPD RF-i JZwolinski I
WDean j
LBerry JAndersen l
OGC-l ACRS hwuami, M9y o
JDurr, RI M MA.D W ^
'3M#
gy}g l
DScrenci, RI
' DOCUMENT NAME: G:%NDERSEN%1749.'RAI
, Te rotelve a coo 7 of this docuenent. Indcate in the t,om:
'C' = Copy without ettschment/ enclosure "E"
= Ccpy with ettschment/ enclosure
- N' = No copy l
OFFICE -
MSPD-PM s MSPD-LA E
MSPD-D NAME J. ANDERSEf4 '1rL. BERRY 6fp W. DEAN {M4 2
I DATE iy/N98
/
12/498 124198 12/ /98 12/ /98 OFFICIAL RECORD COPY 9812280135 981218 PDR ADOCK 05000423 P
Pm
~
e p nREfoq y
t UNITED STATES y
}
NUCLEAR REGULATORY COMMISSION 2
WASHINGTON, D.C. 20066 4001
% N.... %. [
December 18, 1998 Mr. Martin L. Bowling, Jr.
Recovery Officer - Technical Services Northeast Nuclear Energy Company c/o Ms. Patricia A. Loftus Director-Regulatory Affairs P. O. Box 128 Waterford, Connecticut 06385
SUBJECT:
MILLSTONE NUCLEAR POWER STATION, UNIT NO. 3 - REQUEST FOR ADDITIONAL INFORMATION (TAC NO. MA1749)
Dear Mr. Bowling:
In a May 7,1998, letter, Northeast Nuclear Energy Company requested a license amendment to revise the Millstone Unit 3 licensing basis related to the reactor water storage tank (RWST).
The proposed revision to the Millstone Unit 3 licensing basis would eddress the addition of the dose from RWST backleakage into the design basis loss-of-coolant accident analysis, and Chapter 15 of the Final Safety Analysis Report.
As discussed with George Papanic of your staff on December 2,1998, the staff requires additionalinformation to complete its review of the license amendment request. A mutua!!y agreeable target date of January 15,1999, for your response was established. If circumstances result in the need to revise the target date, please call me at the earliest opportunity.
Sincerely, i'
i mesDdersen, Project Manager j Millstone Project Directorate Division of Reactor Projects - 1/II Office of Nuclear Reactor Regulation Docket No. 50-423 I
l
Enclosure:
Request for Additionalinformation ccw/ encl: See next page j
1
a l
REQUEST FOR ADDITIONAL INFORMATION i
i MILLSTONE NUCLEAR POWER STATION. UNIT 3 DOCKET NO. 50-423 1.
Insert 2 to the proposed license amendment request states that the reactor water storage tank (RWST) backleakage leak rate is 0.1 to 0.9 gallon per minute. Explain how these leak rates were determined and modeled in the dose calculation.
2.
What X/Q values were used in the calculations for the RWST backleakage contribution to the excuision area boundam/, low population zone, and control room doses? Provide the methodology used to determine these X/Q values.
3.
What is the basis for solar-induced tank venting? Is it conservative for all conditions (winter / summer)?
4.
What is the value of tank venting flow versus time?
5.
Does backleakage enter the RWST below the expected water level during the postulated accidents?
- If the answer is no, justify the iodine decontamination factor of 100.
6.
Is the backleakage flow rate based on maximum differential pressure across leaking valves for all accident conditions (e.g., worst-case pump combinations)?
7.
How does the loss-of coolant accident dose analysis referred to in your Millstone Unit 2 license amendment request of September 28,1998, affect this analysis / amendment request?
Enclosure
I Millstons Nucinr Powar Station Unit 3 cc:
Lillian M. Cuoco, Esquire Joseph R. Egan, Esquire Senior Nuclear Counsel Egan & Associates, P.C.
Northeast Utilities Service Company 2300 N Street, NW P. O. Box 270 -
Washington, DC 20037 Hartford, CT 06141-0270 Mr. F. C. Rothen Edward L. Wilds, Jr., Ph.D.
Vice President - Nuclear Work Services Director, Division of Radiation Northeast Utilities Service Company Department of Environmental Protection P. O. Box 128 79 Elm Street Waterford, CT 06385 Hartford, CT 06106-5127 Ernest C. Hadley, Esquire i
Regional Administrator, Region i 1040 B Main Street U.S. Nuclear Regulatory Commission P.O. Box 549 475 Allendale Road West Wareham, MA 02576 King of Prussia, PA 19406 Mr. John Buckingham First Selectmen Department of Public Utility Control Town of Waterford Electric Unit 15 Rope Ferry Road 10 Liberty Square Waterford, CT 06385 New Britain, CT 06051 l
Mr. Wayne D. Lanning, Director Mr. James S. Robinson, Manager l-
. Millstone Inspections Nuclear Investments and Administration l
Office of the Regional Adtninistrator New England Power Company 475 Allendale Road 25 Research Drive King of Prussia, PA 19406-1415 Westborough, MA 01582 l
Mr. M. H. Brothers Mr. Raymond P. Necci Vice President - Millstone Operations Vice President - Nuclear Oversight and l
Northeast Nuclear Energy Company Regulatory Affairs P.O. Box 128 Northeast Utilities Service Company Waterford, CT 06385 P. O. Box 128 Waterford, CT 06385 i
Mr. M. R. Scully, Executive Director l
Connecticut Municipal Electric Deborah Katz, President L
Energy Cooperative Citizens Awareness Network 30 Stott Avenue P.O. Box 83
-Norwich, CT 06360 Shelburne Falls, MA 03170 Mr. John Carlin Mr. Allan Johanson, Assistant Director
~
Vice President - Human Services
~
Office of Policy and Management Northeast Utilities Service Company Policy Development and Planning L
P. O. Box 128 Division l
Waterford, CT 06385 450 Capitol Avenue - MS# 52ERN l
P. O. Box 341441 Hartford, CT 06134-1441 i
?
L
d M!!! stone Nuclear Power Station Unit 3 cc:
Citizens Regulatory Commission The Honorable Terry Concannon ATTN: Ms. Susan Perry Luxton Nuclear Energy Advisory Council 180 Great Neck Road Room 4035 Waterford.CT 06385 Legislative Office Building Capitol Avenue Mr. William D. Meinert Hartford, CT 06106 Nuclear Engineer Massachusetts Municipal Wholesale Mr. Evan W. Woollacott Electric Company Co-Chair-P.O. Box 426 Nuclear Energy Advisory Council Ludlow, MA 01056 128 Terry's Plain Road Simsbury, CT 06070 Mr. John W. Beck, President Little Harbor Consultants, Inc.
Millstone - ITPOP Project Office P.O. Box 0630 Niantic, CT 06357-0630 Mr. Leon J. Olivier Chief Nuclear Officer - Millstone Northeast Nuclear Energy Company P.O. Box 128 Waterford, CT 06385 Mr. Daniel L. Curry a
Project Director Parsons Power Group inc.
2675 Morgantown Road Reading, PA 19607 Mr. Chris Schwarz Director - Unit 3 Northeast Nuclear Energy Company P.O. Box 128 Waterford, CT 06385 Senior Resident inspector Millstone Nuclear Power Station c/o U.S. Nuclear Regulatory Commission P. O. Box 513
(
Niantic, CT 06357 Nicholas J. Scobbo, Jr., Esquire Ferriter, Scobbo, Caruso, & Rodophele, P.C.
75 State Street,7th Floor Boston, MA 0210 4