ML17335A309
| ML17335A309 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 10/28/1998 |
| From: | Stang J NRC (Affiliation Not Assigned) |
| To: | Powers R INDIANA MICHIGAN POWER CO. |
| References | |
| TAC-M92092, TAC-M92093, NUDOCS 9811030028 | |
| Download: ML17335A309 (9) | |
Text
CATEGORY 2 REGULAT Y INFORMATION DISTRIBUTIO SYSTEM (RIDS)
RECIPIENT AFFILIATION Indiana Michigan Power Co.
ACCESSION NBR:9811030028 DOC.DATE: 98/10/28 NOTARIZED: NO FACIL:50-315 Donald C. Cook"Nuclear Power Plant, Unit 1, Indiana M
50-316 Donald C.
Cook Nuclear Power Plant, Unit 2, Indiana M
AUTH.NAME AUTHOR AFFILIATION STANG,J.F.
RECIP.NAME POWERS,R.P.
DOCKET ¹ 05000315 05000316
SUBJECT:
Informs that NRC staff conducted control room habitability survey at DC Cook in September of 1986.NRC considers review of analysis to be necessary to resolve concerns raised by habitability survey.
DISTRIBUTION CODE:
DF01D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: Direct Flow Distribution:
50 Docket (PDR Avail)
NOTES:
E ID CODE/NAME INTERNAL:
CE TER EXTERNAL: NOAC COPIES LTTR ENCL
. RECIPIENT ID CODE/NAME NUDOCS-ABSTRACT NRC PDR COPIES LTTR ENCL 0
D E
N NOTE TO ALL "RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THF NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD)
ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 4
ENCL
i" gp,8 RE0ii P0 Cy A,
I 0
rg 0
4~
~0
++*++
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 October 28, 1998 Mr. Robert P. Powers, Senior Vice President Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive Buchanan, Ml 49107 1395
SUBJECT:
DONALDC. COOK NUCLEAR PLANT, UNIT NOS.
1 AND 2 - CONTROL ROOM VENTILATIONSYSTEM REVIEW (TAC NOS. M92092 AND M92093)
Dear Mr. Powers:
The NRC staff conducted a control room habitability survey at your facility in September of 1986. That survey raised questions on the capability of the control room to demonstrate conformance with the requirements contained in General Design Criteria (GDC 19) due to certain conditions which were identified during the visit. By letter dated October 11, 1988, you submitted a control room dose analysis which indicated that the Donald C. Cook control room dose exceeds the limits of GDC 19 of 10 CFR 50 Appendix A. Subsequently, you developed a plant-specific five percentile dispersion term (chi/Q) and recalculated the analysis to demonstrate that the doses to the control room operators would not exceed the limits specified in GDC 19 in the event of an accident.
The output was then incorporated into the plant surveillance test procedure which is used to demonstrate operability of the control room ventilation system.
By letter dated September 28, 1994, you stated that the revised analysis had been completed and was available for review at your offices. On March 8, 1995, you were requested to submit the analysis used to demonstrate that the Donald C. Cook Nuclear Power Plant control rooms meet the requirements of GDC 19. An analysis was submitted to the NRC
-on April7, 1995, and has been under review by the NRC staff since that time.
During an August 5, 1998 phone conversation arranged to discuss technical issues associated with this analysis, the licensee stated that the control room ventilation dose calculations were currently under revision. These calculations were reviewed and determined to require technical and administrative upgrades as part of the restart plan in progress at Donald C. Cook. Your staff has stated that the changes required for this analysis do not affect the ability of the control room ventilation system to meet the requirements of GDC 19 or raise questions as to the D
operability of these systems.
Your staff considers these systems to be fullyoperable.
As a result of this information the NRC has terminated all review activities associated with our A ril l
y p
7, 1995 submittal, thereby closing TAC Nos. M92092 and M92093.
The NRC considers a review of your analysis to be necessary to resolve the concerns raised by 2'he habitability survey. This analysis 'should include the guidance from the NRC NHUG and NEI Control Room Habitability Workshop held in July 1998 in which representatives from Donald C.
Cook Nuclear Plant participated.
Please submit the revised analysis demonstrating conformance of the control room ventilation systems at Donald C. Cook Nuclear Plant with
'78ii030028
'P8 i028 PDR ADOCK 05000$ i5 P
Mr. Robert P. Powers, GDC 19. This submittal is required prior to the restart of either Unit 1 or 2. Upon receipt of the analysis we willopen a new TAC to track the staff's review.
Ifyou have any questions regarding this matter, please contact me at (301) 415-1345.
Sincerely, John F. Stang, Jr., Senior Project Manager Project Directorate III-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket Nos: 50-315 and 50-316 cc: See next page
a
'I
Mr. Robert P. Powers (htober 28, 1998 GDC 19. This submittal is required prior to the restart of either Unit 1 or 2. Upon receipt of the analysis we willopen a new TAC to track the staffs review.
Ifyou have any questions regarding this matter, please contact me at (301) 415-1345.
Sincerely, Original signed by:
Docket Nos: 50-315 and 50-316 cc: See next page I
B I
John F. Stang, Jr., Senior Project Manager Project Directorate Ill-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket File OGC Public ACRS PDIII-1 r/f B. Burgess, Rill EGA1 DOCUMENT NAME:G:iDCCOOKic092092.LTR To receive n copy of this document, indicate in the box: "C" ~ Copy wit enciosur
" ~ Copy with enclosures "N" ~ No copy OFFICE PM: PDIII-1 C LA:PDIII-2 C
PM( P C
PERB C
PD: PDI II-1 C
NAME CNolan Nc DATE 10/0 /98 EBarnhi ll 10/lR/98 JS OFFICIAL
< /98 RECORD COPY CMil1er 10/Q,/98 CCarpenterc 10/
98
Mr. Robert P. Powers 0 tober 28, 1998 GDC 19. This submittal is required prior to the restart of either Unit 1 or 2. Upon receipt of the analysis we willopen a new TAC to track the staffs review.
Ifyou have any questions regarding this matter, please contact me at (301) 415-1345.
Sincerely, Original signed by:
Docket Nos: 50-315 and 50-316 cc: See next page John F. Stang, Jr., Senior Project Manager Project Directorate III-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Docket File, OGC Public ACRS PDIII-1 r/f B. Burgess, Rill EGA1 DOCUMENT NAME:G:>DCCOOK(CO92092.LTR To receive a copy of this document, indicate in the box: "C" ~ Copy wit enclosur W~ Copy with enclosures "N" ~ No copy OFFICE DATE PM:
PDI II-1 C
Cwolan y<
10/0 /98 PMP I LA:PDIII-2 C
JS EBarnhi 11
/98 10/IR/98 OFFICIA RECORD COPY C
PERB CM1ller 10/Q,/98 C
PD: PDI II-1 C
CCarpenterz, 10/
98
~
~
E (I
Robert P. Powers Indiana Michigan Power company Donald C. Cook Nuclear Plant Units 1 and 2 CC:
Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, IL 60532-4351 Attorney General Department ofAttorney General 525 West Ottawa Street Lansing, Ml 48913 Township Supervisor Lake Township Hall P.O. Box 818 Bridgman, Ml 49106 U.S. Nuclear Regulatory Commission Resident Inspector's Office 7700 Red Arrow Highway Stevensville, Ml 49127 Jeremy J.
Euto, Esquire 500 Circle Drive Buchanan, Ml 49107 Mayor, City of Bridgman P.O. Box 366 Bridgman, Ml 49106 Special Assistant to the Governor Room 1 - State Capitol Lansing, Ml 48909 Drinking Water and Radiological Protection Division Michigan Department of Environmental Quality 3423 N. Martin Luther King Jr Blvd P.O. Box 30630 CPH Mailroom Lansing; Ml 48909-8130 Jeb Kingseed Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive Buchanan, Ml 49107 David A. Lochbaum Union of Concerned Scientists 1616 P Street NW, Suite 310 Washington, DC 20036-1495
0 j
C A ~
'K I>
~
~
E