ML043630275
| ML043630275 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 12/20/2004 |
| From: | Jensen J Indiana Michigan Power Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| AEP:NRC:4001, GL-03-001 | |
| Download: ML043630275 (3) | |
Text
Indiana Michigan Power Company 500 Circle Drive Buchanan, Ml 49107 1395 INDIANA MICHIGAN POWER December 20, 2004 AEP:NRC:4001 10 CFR 50.46 Docket Nos:
50-315 50-316 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop O-P1-17 Washington, D. C. 20555-0001 Donald C. Cook Nuclear Plant Units I and 2 NOTIFICATION OF EXTENSION OF A COMMITMENT DUE DATE
Reference:
Letter from J. A. Zwolinski, Indiana Michigan Power Company, to U. S. Nuclear Regulatory Commission Document Control Desk, "Donald C. Cook Nuclear Plant Units I and 2, Response to Nuclear Regulatory Commission Generic Letter 2003-01:
Control Room Habitability," AEP:NRC:3054-15, dated December 4, 2003.
In the referenced letter, Indiana Michigan Power Company (I&M) committed to complete the following action by December 31 2004.
"I&M will update the evaluation of offsite sources of toxic gas. If it is necessary to quantify the potential chemical concentrations in the control room, the update will include the assumption that the toxic gases enter the control room via the normal makeup flow."
The purpose of this letter is to notify the Nuclear Regulatory Commission (NRC) that the due date of this commitment has been extended until December 31, 2005.
An evaluation of offsite sources of toxic gases and explosives was performed in January 2000.
This evaluation determined the following:
- Only seven facilities located within a 5-mile radius of the plant stored sufficient quantities of hazardous material to report them to the county offices, and none stored a material that would pose a threat to Control Room operators.
U. S. Nuclear Regulatory Commission AEP:NRC:4001 Page 2
- Chemicals transported via highway or rail were either screened out, were shown to have an accident probability of less than 10' 7 /year, or did not pose a credible risk to Control Room operators.
- There were no credible events which would challenge safety-related structures, systems, and components from an offsite explosion on a major transportation route.
While an updated evaluation of offsite sources of toxic gases and explosives is not anticipated to yield any changes to these results, additional time is required to perform the necessary surveys of the potential hazards. This delay is not expected to result in any undue safety risk. There have been no new roads or rail lines established in the vicinity of the plant and no new industries are known to have been established in the surrounding area.
The attachment describes the commitment identified in this submittal.
Should you have any questions, please contact Mr. John A. Zwolinski, Director of Safety Assurance, at (269) 466-2428.
Sincerely, Oseph N. Jensen Site Vice President DB/rdw Attachment c:
J. L. Caldwell, NRC Region III K. D. Curry, Ft. Wayne AEP, w/o attachment J. T. King, MPSC, w/o attachment C. F. Lyon, NRC Washington, DC MDEQ - 1VHMD/HVWRPS NRC Resident Inspector
ATTACHMENT TO AEP:NRC:4001 COMMITMENTS The following table identifies those actions committed to by Indiana Michigan Power Company (I&M) in this document.
Any other actions discussed in this submittal represent intended or planned actions by I&M. They are described to the Nuclear Regulatory Commission (NRC) for the NRC's information and are not regulatory commitments.
Commitment Date I&M will update the evaluation of offsite sources of toxic gas. If it is December 31, 2005 necessary to quantify the potential chemical concentrations in the control room, the update will include the assumption that the toxic gases enter the control room via the normal makeup flow.