ML021260742
| ML021260742 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 05/10/2002 |
| From: | Stang J NRC/NRR/DLPM/LPD3 |
| To: | Bakken A Indiana Michigan Power Co |
| References | |
| GL-96-006, TAC M96802 | |
| Download: ML021260742 (5) | |
Text
May 10, 2002 Mr. A. Christopher Bakken III, Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive Buchanan, MI 49107
SUBJECT:
DONALD C. COOK NUCLEAR PLANT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION, RESPONSES TO GENERIC LETTER (GL) 96-06 ASSURANCE OF EQUIPMENT OPERABILITY AND CONTAINMENT INTEGRITY DURING DESIGN-BASIS ACCIDENT CONDITIONS, (TAC NOS. M96801 AND M96802)
Dear Mr. Bakken:
By letter dated August 31, 2001, Indiana Michigan Power Company (I&M) submitted its response to the Nuclear Regulatory Commissions (NRCs) request for additional information (RAI) dated June 6, 2001, concerning GL 96-06. The staff has reviewed your response and concluded that it does not provide technical information in sufficient detail to enable the staff to make an independent assessment regarding the equipment operability and containment integrity during design-basis accident conditions in terms of regulatory requirements and the protection of public health and safety. The NRC staff finds that the additional information is needed as identified in the enclosed RAI.
Draft questions were discussed with Mr. Bob Vasey et al., of your staff on April 29, 2002. The questions in the enclosed RAI are the same as the draft questions with the exception of minor modifications that were made to provide clarification. A mutually agreeable target date of July 02, 2002, for your response was established. The NRC staff will continue review of your responses to GL 96-06 when your response to the enclosed RAI is received.
If circumstances result in the need to revise the target date, please contact me at (301) 415-1345 at the earliest opportunity.
Sincerely,
/RA/
John F. Stang, Senior Project Manager, Section 1 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-315 and 50-316
Enclosure:
RAI cc w/encl: See next page
May 10, 2002 Mr. A. Christopher Bakken III, Senior Vice President and Chief Nuclear Officer Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive Buchanan, MI 49107
SUBJECT:
DONALD C. COOK NUCLEAR PLANT, UNITS 1 AND 2 - REQUEST FOR ADDITIONAL INFORMATION, RESPONSES TO GENERIC LETTER (GL) 96-06 ASSURANCE OF EQUIPMENT OPERABILITY AND CONTAINMENT INTEGRITY DURING DESIGN-BASIS ACCIDENT CONDITIONS, (TAC NOS. M96801 AND M96802)
Dear Mr. Bakken:
By letter dated August 31, 2001, Indiana Michigan Power Company (I&M) submitted its response to the Nuclear Regulatory Commissions (NRCs) request for additional information (RAI) dated June 6, 2001, concerning GL 96-06. The staff has reviewed your response and concluded that it does not provide technical information in sufficient detail to enable the staff to make an independent assessment regarding the equipment operability and containment integrity during design-basis accident conditions in terms of regulatory requirements and the protection of public health and safety. The NRC staff finds that the additional information is needed as identified in the enclosed RAI.
Draft questions were discussed with Mr. Bob Vasey et al., of your staff on April 29, 2002. The questions in the enclosed RAI are the same as the draft questions with the exception of minor modifications that were made to provide clarification. A mutually agreeable target date of July 02, 2002, for your response was established. The NRC staff will continue review of your responses to GL 96-06 when your response to the enclosed RAI is received.
If circumstances result in the need to revise the target date, please contact me at (301) 415-1345 at the earliest opportunity.
Sincerely,
/RA/
John F. Stang, Senior Project Manager, Section 1 Project Directorate III Division of Licensing Project Management Office of Nuclear Reactor Regulation Docket Nos. 50-315 and 50-316
Enclosure:
RAI cc w/encl: See next page DISTRIBUTION PUBLIC ACRS CCarpenter WJensen PD III-1 r/f OGC AVegel, RIII JStang JFair JTatum THarris ADAMS ACCESSION NO.: ML021260742 OFFICE PDIII-1/PM PDIII-1/LA PDIII-1/SC NAME JStang THarris LRaghavan DATE 05/10/02 05/10/02 05/10/02 OFFICIAL RECORD COPY
REQUEST FOR ADDITIONAL INFORMATION FOR DONALD C. COOK, UNITS 1 AND 2 SUBMITTAL C0801-05 RESPONSES TO GENERIC LETTER 96-06, DATED AUGUST 31, 2001 1.
Provide a simplified diagram of the fan cooler system showing the piping areas, elevations, and flow velocities at the time before the calculated waterhammer occurs.
This will allow the NRC staff to perform its own calculation using the Joukowski equation.
2.
Provide the margin of safety of the calculated loads and stresses in the piping system from a postulated waterhammer event to the maximum allowable loads and stresses.
3.
Provide an evaluation showing whether the discharge flow orifice will drain and therefore be a potential waterhammer site.
- 4.
Provide information concerning operator experience in restarting the fan cooler system in a voided condition.
5.
Provide a comparison of predictions by the SYSFLOW code with predictions of the Joukowski equation for waterhammer pressure pulse.
ENCLOSURE
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 of Attorney General 525 West Ottawa Street Lansing, MI 48913 Township Supervisor Lake Township Hall P.O. Box 818 Bridgman, MI 49106 U.S. Nuclear Regulatory Commission Resident Inspectors Office 7700 Red Arrow Highway Stevensville, MI 49127 David W. Jenkins, Esquire Indiana Michigan Power Company One Cook Place Bridgman, MI 49106 Mayor, City of Bridgman P.O. Box 366 Bridgman, MI 49106 Special Assistant to the Governor Room 1 - State Capitol Lansing, MI 48909 Drinking Water and Radiological Project Division Michigan Department of Environmental Quality 3423 N. Martin Luther King Jr. Blvd.
P. O. Box 30630, CPH Mailroom Lansing, MI 48909-8130 Scot A. Greenlee Director, Nuclear Technical Services Indiana Michigan Power Company Nuclear Generation Group 500 Circle Drive Buchanan, MI 49107 David A. Lochbaum Union of Concerned Scientists 1616 P Street NW, Suite 310 Washington, DC 20036-1495 Michael J. Finissi Plant Manager Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106 Joseph E. Pollock Site Vice President Indiana Michigan Power Company Nuclear Generation Group One Cook Place Bridgman, MI 49106