ML17292B084
| ML17292B084 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 10/15/1997 |
| From: | Colburn T NRC (Affiliation Not Assigned) |
| To: | Parrish J WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| References | |
| TAC-M96928, NUDOCS 9710210245 | |
| Download: ML17292B084 (8) | |
Text
October 15, 1997 Mr. J.
V. Parrish Chief Executive Officer Washington Public Power Supply System P.O.
Box 968 (Mail Drop 1023)
- Richland, Washington 99352-0968
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION FOR THE WASHINGTON PUBLIC POWER SUPPLY SYSTEM (WPPSS)
NUCLEAR PROJECT NO.
2 (WNP-2)
(TAC NO.
M96928)
Dear Mr. Parrish:
The staff has reviewed your October 15, 1996, application for a technical specification amendment pertaining to the secondary containment and standby gas treatment system revised secondary containment drawdown and post accident analysis.
Based on the review, the staff.has determined that the additional information identified in the enclosure is needed to complete the review:
We request that you respond to this request for additional information within 30 days of receipt of this letter in order for the staff to maintain its review schedule.
If you have any questions, please contact me at (301) 415-1341.
Sincerely, Original Signed By Docket No. 50-397
Enclosure:
Request for Additional Information cc:
See next page Timothy G. Colburn, Senior Project Manager Project Directorate IV-2 Division of Reactor Projects
-- III/IV Office of Nuclear Reactor Regulation
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055&4001 October 15, 1997 Mr. J.
V. Parrish Chief Executive Of'ficer Washington Public Power Supply System P.O.
Box 968 (Nail Drop 1023)
Richland.
Washington 99352-0968
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION FOR THE WASHINGTON PUBLIC POWER SUPPLY SYSTEM (WPPSS)
NUCLEAR PROJECT NO.
2 (WNP-2)
(TAC NO.
M96928)
Dear Nr. Parrish:
The staff has reviewed your October 15.
1996, application for a technical specification amendment pertaining to the secondary containment and standby gas treatment system revised secondary containment drawdown and post accident analysis.
Based on the review, the staff has determined that the additional information identified in the enclosure is needed to complete the review:
We request that you respond to this request for additional information within 30 days of receipt of this letter in order for the staff to maintain its review schedule.
If you have any questions, please contact me at (301) 415-1341.
Sincerely, Docket No. 50-397
Enclosure:
Request for Additional Information cc:
See next page Timothy G. Colburn, Senior Project Manager Project Directorate IV-2 Division of Reactor Projec'ts
- III/IV Office of Nuclear Reactor Regulation
~7 I'i
Mr'. J.
V. Parrish October 15, 1997 cc w/encl:
Hr. Greg 0. Smith (Hail Drop 927M)
WNP-2 Plant General Manager Washington Public Power Supply System P. 0.
Box 968
- Richland, Washington 99352-0968 Hr. Albert E. Houncer (Mail Drop 1396)
Chief Counsel Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352-0968 Hr. Frederick S. Adair, Chairman Energy Facility Site Evaluation Council P. 0.
Box 43172 Olympia, Washington 98504-3172 Mr. David A. Swank (Hail Drop PE20)
- Manager, Regulatory Affairs Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352-0968 Hr. Paul Inserra (Hail Drop PE20)
- Manager, Licensing Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower 8 Pavilion 611'yan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Chairman Benton County Board of Commissioners P.O.
Box 69
- Prosser, Washington 99350-0190 Hr. Rodney L. Webring (Hail Drop PE08)
Vice President, Operations Support/PIO Washington Public Power Supply System P. 0.
Box 968 Richland.
Washington 99352 Mr. Scott Boynton. Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O.
Box 69
- Richland, Washington 99352-0968 Mr. Perry D. Robinson, Esq.
Winston 5 Strawn 1400 L Street; N.W.
Washington, DC 20005-3502
r~
RE UEST FOR ADDITIONAI INFORMATION WASHINGTON PUBLIC POWER SUPPLY SYSTEM WNP-2 DOCKET NO. 50-397 AMENDMENT TO SECONDARY CONTAINMENT AND STANDBY GAS TREATMENT SYSTEM TECHNICAI SPECIFICATIONS With the exceptions of secondary containment draw-down time, bypass
- leakage, mixing volumes, and SGT system flow rate addressed in the October 15, 1996, submittal, were assumptions other than those listed in Table 15.6-9 of the updated FSAR used in the evaluation of this request on the design basis LOCA analysis?
If so. clearly state these assumptions and provide a technical justification for the change.
Provide a description of'he PADD computer code used to calculate 'the LOCA consequences.
Include the basic dose equations solved.
the analytical method employed, and the dose conversion factors used.
3.
What is the secondary containment forced-air recirculation rate used in determining the 40K mixing volume assumption?
4.
Provide a description of the fission product transport model used to calculate the offsite and control room LOCA doses.
Give all volumes (nodes),
transfer rates between nodes and removal rates (or DFs) between nodes.
What DF was assumed for fission product removal in the suppression pool?
5.
What were the time-dependent X/Q values used for the control room air
. inlets?
What X/Q values were used for control room in-leakage?
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