ML17332A645
| ML17332A645 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 03/08/1995 |
| From: | John Hickman NRC (Affiliation Not Assigned) |
| To: | Fitzpatrick E INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| References | |
| TAC-M67784, NUDOCS 9503150330 | |
| Download: ML17332A645 (4) | |
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055&0001 Harch 8, 1995 Hr.
E.
E. Fitzpatrick, Vice President Indiana Hichigan Power Company c/o American Electric Power Service Corporation 1 Riverside Plaza
- Columbus, Ohio 43215
SUBJECT:
DONALD C.
COOK NUCLEAR PLANT, UNIT NOS.
1 AND 2 CONTROL ROOM VENTILATION SYSTEH REVIEW (TAC NOS.
H67784
& H67785)
Dear Hr. Fitzpatrick:
The NRC 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 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 D.
C.
Cook control room dose exceeds the limits of General Design Criterion (GDC) 19 of 10 CFR Part 50 Appendix A.
Subsequently, you developed a plant-specific five percentile atmospheric dispersion term (g/g) and recalculated the analysis to demonstrate that the doses to control room operators in the event of an accident would not exceed the limits of GDC 19.
The output of the calculation was an equation which represents the maximum allowable amounts of filtered and unfiltered control room air inleakage for compliance with the GDC 19 (5 rem whole body, 36 rem thyroid, and 30 rem skin).
This equation was incorporated into a plant surveillance 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 performed and was available for review at your offices.
Based on the above, at this time we do not consider your control room ventilation system to be inoperable.
We do,
- however, consider a review of your analysis to be necessary to resolve the concerns raised by the habitability survey.
Therefore, please submit a copy of your analysis demonstrating compliance with GDC 19 for our review within 30 days of receipt of this letter.
Upon receipt of the analysis we will open a
new TAC for the review and consider the work under TAC Nos.
H67784 and H67785 to be completed.
9503150330 950308 PDR ADOCK',l050003i5 P
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E. Fitzpatrick March 8, 1995 This requirement affects fewer than ten respondents and, therefore, is not subject to Office of Management and Budget review under Public Law 96-511.
Should you have any questions, please contact me at (301) 504-3017.
Sincerely, ORIGINAL SIGNED 'BY John B. Hickman, 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 DISTRIBUTION 5Docket:F-i.l ei PUBLIC E.
Adensam C. Carpenter C. Miller OGC PDIII-1 Rdg File C. Jamerson J.
Hickman (2)
ACRS (4)
W. Kropp, RIII To receive a copy of this document, Indicate In the born C
n Copy without attachment/enclosure "E" ~ Copy with attachment/enclosure "N" ~ No copy DOCUMENT NAME: G:tWPOOCS<OCCOOK'IC067784.LTA, OFFICE LA:PD31 PM:PD31 BC;TERB E'D:PD NAME CJamerson JHickman:jk LMiller CDCar en DATE 03/
G /95 03/< /95'3/
/95 OFFICIAL OFFIC COPY 03/ g /95
Mr. E.
E.
Fitzpatri ck Indiana Michigan Power Company CC:
Regional Administrator, Region III U.S. Nuclear Regulatory Commission 801 Warrenville Road Lisle, Illinois 60532-4351 Attorney General Department of Attorney General 525 West Ottawa Street
- Lansing, Michigan 48913 Township Supervisor Lake Township Hall Post Office Box 818 Bridgman, Michigan 49106 Al Blind, Plant Manager Donald C,
Cook Nuclear Plant Post Office Box 458 Bridgman, Michigan 49106 U.S. Nuclear Regulatory Commission Resident Inspector Office 7700 Red Arrow Highway Stevensville, Michigan 49127 Gerald Charnoff, Esquire
- Shaw, Pittman, Potts and Trowbridge 2300 N Street, N.
W.
Washington, DC 20037 Mayor, City of Bridgman Post Office Box 366
- Bridgman, Michigan 49106 Special Assistant to the Governor Room 1 - State Capitol
- Lansing, Michigan 48909 Nuclear Facilities and Environmental Monitoring Section Office Division of Radiological Health Department of Public Health 3423 N.
Logan Street P. 0.
Box 30195
- Lansing, Michigan 48909 Donal,d C.
Cook Nuclear Plant Mr. S.
Brewer American Electric Power Service Corporation 1 Riverside Plaza
- Columbus, Ohio 43215 Dccanber 1993