ML083450536
| ML083450536 | |
| Person / Time | |
|---|---|
| Site: | Callaway  |
| Issue date: | 10/09/2008 |
| From: | Thadani M Plant Licensing Branch IV |
| To: | Elwood T Ameren Corp |
| Thadani, M C, NRR/DORL/LP4, 415-1476 | |
| References | |
| TAC MD8006 | |
| Download: ML083450536 (2) | |
Text
From:
Mohan Thadani Sent:
Thursday, October 09, 2008 4:30 PM To:
Internet:
Cc:
Harold Walker; Robert Dennig
Subject:
REQUEST FOR ADDITIONAL INFORMATION RE: CONTROL ROOM ENVELOPE HABITABILITY (TAC NO. MD8006 Tom:
The NRC staff has reviewed the subject request, and has identified a need for additional information in order to complete the requested review. Please review the request below and advise if a phone call is necessary to clarify the NRC staff's request.
Thanks.
Mohan C Thadani Senior Project Manager Plant Licensing Branch IV Division of Operating Reeactor Licensing Office of Nuclear Reactor Regulation REQUEST FOR ADDITIONAL INFORMATION CALLAWAY PLANT UNIT 1 DOCKET NO. 50-483 By letter dated January 14, 2008 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML080230473). AmerenUE (Licensee of Callaway Plant Unit 1) requested an amendment to Facility Operating License No. NPF-30 for the Callaway Plant Unit
- 1. The requested amendment is to revise Technical Specifications (TS) requirements related to control room envelope habitability in accordance with Technical Specification Task Force (TSTF) TSTF-448, Revision 3, Control Room Habitability. The Nuclear Regulatory Commission (NRC) staff determined that following additional information is needed in order to complete its review.
- 1. In AmerenUE letter dated January 14, 2008 (ULNRC-05463) on page 4 of 6 of attachment 1, the last paragraph of section 2.2.1, states, in part, that.in TS 3.7.10, TS 5.5.17 and TS Bases 3.7.10 the phrase control room envelope (CRE) boundary [as recommended per TSTF-448] is replaced with control room envelope (CRE) and control building envelope (CBE) boundaries where appropriate. The CRE and CBE boundaries are addressed together or separately, as applicable. However, insert 5.5.17 in section 5.5.17.d and 5.5.17.f control room is used instead of control room envelope (CRE) and control building envelope (CBE) boundaries. This usage is not consistent with the explanation on page 4 of 6 in section 2.2.1 of attachment 1. In addition it is not consistent with the intent of TSTF-448 Revision 3, as indicated in the technical analysis section on page 9 where Bases Changes are discussed. On page 9 it is stated that
[t]he Bases are revised to use the terms control room envelope (CRE) and CRE
boundary instead of the ambiguous term control room. The definition of control room and control room envelope boundary are added to the background section of the Bases. Therefore, please clarify your intent with the use of control room in insert 5.5.17 in section 5.5.17.d and 5.5.17.f of your submittal (i.e. attachment 2 to ULNRC-05463).
- 2. Regarding the title of Insert 5.5.17; in accordance with TSTF-448 the title of the program represented by section 5.5.17 should be Control Room Envelope Habitability Program, instead of Control Room Habitability Program. The difference is minor, however the title in the TSTF more appropriately place emphasis on the control room envelope. We are requesting that the licensee change the name of the program to be consistent with the TSTF.
- 3. Section 5.5.17.e of your submittal is also inconsistent with TSTF-448 Rev. 3, in that there is no discussion of CRE occupants exposure to hazardous chemicals such as is reflected in the REQUIRED ACTION of TS 3.7.10.B.2, where there is assurance that the CRE occupants are protected from hazardous chemicals regardless of quantities stored on site now or in the future. The NRC staff is aware of the discussion provided in section 2.2.3 of attachment 1 of the licensees submittal and believes that discussion does not adequately address the intent of TSTF-448. Therefore we are requesting that you update section 5.5.17.e of your submittal to address CRE occupants exposure to hazardous chemicals consistent with the intent of TSTF-448 Rev. 3, section 5.5.18.e E-mail Properties Mail Envelope Properties ()
Subject:
REQUEST FOR ADDITIONAL INFORMATION RE: CONTROL ROOM ENVELOPE HABITABILITY (TAC NO. MD8006 Sent Date: 10/9/2008 3:53:02 PM Received Date: 10/9/2008 4:29:00 PM From: Mohan Thadani Created By: Mohan.Thadani@nrc.gov Recipients:
TElwood@ameren.com (Internet:)
Tracking Status: None Harold.Walker@nrc.gov (Harold Walker)
Tracking Status: None Robert.Dennig@nrc.gov (Robert Dennig)
Tracking Status: None Post Office:
Files Size Date & Time MESSAGE 11557 10/9/2008
Options Expiration Date:
Priority: olImportanceNormal ReplyRequested: False Return Notification: False Sensitivity: olNormal Recipients received: