ULNRC-05069, Proposed Revision to Technical Specification 3.9.2 Unborated Water Source Isolation Valves to Revise and Rename Specification 3.9.2 Dilution Source Isolation Valves and Associated Revision to Technical Specification 3.3.9 Boron
| ML043140235 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 10/29/2004 |
| From: | Keith Young AmerenUE |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| ULNRC-05069 | |
| Download: ML043140235 (3) | |
Text
AmerenUE Callaway Plant PO Box 620 Fulton, MO 65251 October 29, 2004 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop P1-137 Washington, DC 20555-0001 WAmerenUIE Ladies and Gentlemen:
ULNRC-05069 DOCKET NUMBER 50-483 CALLAWAY PLANT UNION ELECTRIC COMPANY PROPOSED REVISION TO TECHNICAL SPECIFICATION 3.9.2 "UNBORATED WATER SOURCE ISOLATION VALVES" TO REVISE AND RENAME SPECIFICATION 3.9.2 "DILUTION SOURCE ISOLATION VALVES" AND ASSOCIATED REVISION TO TECHNICAL SPECIFICATION 3.3.9 "BORON DILUTION MITIGATION SYSTEM (BDMS)"
Reference:
ULNRC-04883, December 15, 2003 Pursuant to 10 CFR 50.90, AmerenUE, in the above referenced submittal letter requested an amendment to the Facility Operating License No. NPF-30 for Callaway Plant.
In summary, the amendment application proposed revision to Technical Specifications (TS) 3.9.2, "Unborated Water Source Isolation Valves," to remove the phrase "unborated water" throughout and replace it with the word "dilution",
including renaming TS 3.9.2. In addition, the reference to specific Chemical and Volume Control system (CVCS) isolation valves BGVO178 and BGV0601 was deleted and replaced with the generic phrase "dilution source isolation valves" to ensure that all dilution sources and their associated isolation valves are covered by the Specification. The revised TS 3.9.2 would cover all inadvertent boron dilution events in Mode 6. In addition, TS 3.3.9 REQUIRED ACTIONS for CONDITIONS B and C were also revised to substitute the word "dilution" for "unborated water" and to eliminate reference to specific isolation valves. The revisions would make TS 3.3.9 consistent with TS 3.9.2. Several e-mails were transmitted and tele-conferences held between AmerenUE and NRC Staff to discuss the proposed license amendment request.
,Ooj a subsidiary ofAmeren Corporation
ULNRC-05069 October 29, 2004 Page 2 After further consideration, AmerenUE has decided to withdraw the amendment request as originally proposed. Because the proposed changes address issues concerning potential boron dilution sources in MODE 6 (identified in the Callaway corrective action program), AmerenUE plans to re-submit the proposed amendment request. AmerenUE has decided to take a modified approach to the original proposed amendment request and is still in the process of developing the modified approach. Withdrawing the proposed license amendment request and re-submitting at a later date does not impact plant operation or safety. All concerns are being addressed under the corrective action program and plant administrative controls.
If you should have any questions on the above or attached, please contact Dave Shafer at (314) 554-3104 or Dwyla Walker at (314) 554-2126.
Sincerely, Maahe Reungt A
Manager, Regulatory Affairs DJW/jdg
ULNRC-05069 October 29, 2004 Page 3 cc:
U.S. Nuclear Regulatory Commission (Original and I copy)
Attn: Document Control Desk Mail Stop P 1-137 Washington, DC 20555-0001 Mr. Bruce S. Mallett Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. Jack N. Donohew (2 copies)
Licensing Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop 7E1 Washington, DC 20555-2738 Missouri Public Service Commission Governor Office Building 200 Madison Street PO Box 360 Jefferson City, MO 65102-0360 Deputy Director Department of Natural Resources P.O. Box 176 Jefferson City, MO 65102