Letter Sequence RAI |
|---|
TAC:MF3673, Clarify Application of Setpoint Methodology for LSSS Functions (Approved, Closed) |
|
MONTHYEARGO2-14-043, License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level-High2014-03-24024 March 2014
License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level-High
Project stage: Request
ML14115A2132014-04-28028 April 2014
Supplemental Information Needed for Acceptance of Requested Licensing Action - License Amendment Request to Revise TS Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: Acceptance Review
GO2-14-076, Supplemental Information Regarding License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High2014-05-0808 May 2014
Supplemental Information Regarding License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: Supplement
ML14129A4242014-05-0909 May 2014
NRR E-mail Capture - Acceptance Review
Project stage: Acceptance Review
ML14206A0112014-07-31031 July 2014
Request for Additional Information, License Amendment Request to Revise TS Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: RAI
ML14254A1772014-08-28028 August 2014
Response to Request for Additional Information Related to License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: Response to RAI
ML14262A3412014-09-24024 September 2014
Request for Additional Information, Round 2, License Amendment Request to Revise TS Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: RAI
GO2-14-157, Response to Second Request for Additional Information Related to License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High2014-11-0606 November 2014
Response to Second Request for Additional Information Related to License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: Request
GO2-14-171, Supplement to Response to Second Request for Additional Information, Related to License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High2014-12-15015 December 2014
Supplement to Response to Second Request for Additional Information, Related to License Amendment Request for Changing Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: Supplement
ML15063A0102015-03-27027 March 2015
Issuance of Amendment No. 232, Request to Revise Technical Specification Table 3.3.1.1-1 Function 7, Scram Discharge Volume Water Level - High
Project stage: Approval
2014-05-08
[Table View] |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 Mr. Mark E. Reddemann Chief Executive Officer Energy Northwest P.O. Box 968 (Mail Drop 1023)
Richland, WA 99352-0968 September 24, 2014
SUBJECT:
COLUMBIA GENERATING STATION-REQUEST FOR ADDITIONAL INFORMATION RELATED TO LICENSE AMENDMENT REQUEST TO CHANGE TECHNICAL SPECIFICATION TABLE 3.3.1.1-1 FUNCTION 7, "SCRAM DISCHARGE VOLUME WATER LEVEL-HIGH" (TAC NO. MF3673)
Dear Mr. Reddemann:
By application to the U.S. Nuclear Regulatory Commission (NRC) dated March 24, 2014, as supplemented by letters dated May 8 and August 28, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML14098A400, ML14141A538, and ML14254A177, respectively), Energy Northwest, the licensee, submitted a license amendment request to revise Columbia Generating Station (CGS) Technical Specification (TS)
Table 3.3.1.1-1, Function 7, "Scram Discharge Volume Water Level-High."
In its letter dated July 31, 2014 (ADAMS Accession No. ML14206A011), the NRC staff requested clarification of why the licensee used a frequency of 24 months to calculate instrument drift, since this is not the surveillance frequency defined in the CGS TSs. In the licensee's response dated August 28, 2014, the licensee discussed that it recognized that using 24 months becomes non-conservative for establishing the instrument drift. The licensee stated that it is recalculating the as-found tolerance (AFT) using the drift associated with 18 months; however, the recalculated value for AFT was not provided in the response. The NRC staff has determined the recalculated value of the AFT is needed to complete its technical evaluation of the licensee's application. Please provide the recalculated value of the AFT for function 7b in TS Table 3.3.1.1-1 within 30 days of the date of this letter.
If circumstances result in the need to revise the requested response date, please contact me at (301) 415-2296 or by e-mail at fred.lyon@nrc.gov.
Docket No. 50-397 cc: Distribution via Listserv Sincerely, Carl F. Lyon, Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
ML14262A341 OFFICE NRR/DORULPL4-1 /PM NRR/DORULPL4-1 /LA NAME Flyon JBurkhardt DATE 9/23/14 9/23/14 Sincerely, IRA/
Carl F. Lyon, Project Manager Plant Licensing Branch IV-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
NRR/DORULPL4-1 /BC(A)
NRR/DORULPL4-1 /PM JThorp EOesterle Flyon 9/15/14 9/23/14 9/24/14
