Text

Response to Request for Additional Information Related to Exigent License Amendment Request for Change to Technical Specification 3.8.7 Distribution Systems - Operating
	ML20245E682
Person / Time
Site:	Columbia
Issue date:	09/01/2020
From:	Schuetz R; Energy Northwest
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	GO2-20-120
	Download: ML20245E682 (14)
	v • d • e

R.E. Schuetz ENERGY Columbia Generating Station P.O. Box 968, PE23 NORTHWEST Richland, WA 99352-0968 Ph. 509.377.2425 l F. 509.3774140 reschuetz@energy-northwest.com September 1, 2020 GO2-20-120 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

COLUMBIA GENERATING STATION, DOCKET NO. 50-397 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION RELATED TO EXIGENT LICENSE AMENDMENT REQUEST FOR CHANGE TO TECHNICAL SPECIFICATION 3.8.7 DISTRIBUTION SYSTEMS - OPERATING

References:

1. Letter from R.E. Schuetz, Energy Northwest, to NRC, Exigent License Amendment Request for Change to Technical Specification 3.8.7 Distribution Systems - Operating, dated August 20, 2020 (ADAMS Accession Number ML20233A976)

2. Email from S. Lee, NRC, to D. M. Wolfgramm, Energy Northwest, Columbia Request for Additional Information: Exigent License Amendment Request to Extend Technical Specification 3.8.7, Distribution Systems - Operating, completion time (EPID: L-2020-LLA-0180), dated August 22, 2020

3. Letter from R.E. Schuetz, Energy Northwest, to NRC, Response to Request for Additional Information Related to Exigent License Amendment Request for Change to Technical Specification 3.8.7 Distribution Systems - Operating, dated August 24, 2020 (ADAMS Accession Number ML20238A706)

4. Email from S. Lee, NRC to D. M. Wolfgramm, Energy Northwest, Columbia additional request for additional information: Exigent license amendment request to extend Technical Specification 3.8.7, Distribution Systems - Operating, completion time (EPID: L-2020-LLA-0181), dated August 26, 2020

5. Letter from R.E. Schuetz, Energy Northwest, to NRC, Response to Request for Additional Information Related for Exigent License Amendment Request for Change to Technical Specification 3.8.7 Distribution Systems - Operating dated August 27, 2020 (ADAMS Accession ML20240A345)

GO2-20-120 Page 2 of 2

6. Email from S. Lee, NRC to D.M. Wolfgramm, Energy Northwest, Columbia additional request for additional information: Exigent license amendment request to extend Technical Specification 3.8.7, Distribution Systems - Operating, completion time (EPID: L-2020-LLA-0181), dated August 31, 2020

Dear Sir or Madam:

By Reference 1, Energy Northwest submitted an exigent License Amendment Request for a change to Technical Specification (TS) 3.8.7 Distribution Systems - Operating. By Reference 2 the Nuclear Regulatory Commission (NRC) requested additional information related to the Energy Northwest submittal. By Reference 3 Energy Northwest submitted responses to Reference 2. By Reference 4, the NRC issued a second request for additional information. By Reference 5, Energy Northwest submitted responses to Reference 4. By Reference 5, the NRC issued an additional request for additional information. Enclosure 1 to this letter contains the requested information.

Enclosure 2 contains the proposed TS mark-up. Enclosure 3 contains the proposed clean version of the TS.

The No Significant Hazards Consideration Determination provided in the original submittal is not altered by this submittal. No new commitments are being made by this letter or the enclosure. Based upon submittal date of this letter, Energy Northwest is requesting that the proposed TS change be reviewed and approved by September 8, 2020.

If there are any questions or if additional information is needed, please contact Ms. D.M.

Wolfgramm, Regulatory Affairs Manager, at 509-377-4792.

I declare under penalty of perjury that the foregoing is true and correct.

Executed this 1st day of September, 2020.

Respectfully, R.E. Schuetz Site Vice President

Enclosures:

As stated cc: NRC RIV Regional Administrator NRC NRR Project Manager NRC Senior Resident Inspector NRC NRR Plant Licensing Branch Chief CD Sonoda - BPA/1399 EFSECutc.wa.gov - EFSEC E Fordham - WDOH R Brice - WDOH L Albin - WDOH

GO2-20-120 Enclosure 1 Page 1 of 2 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION

Background

By letter dated August 20, 2020 (Agencywide Documents Access and Management System (ADAMS) Accession number ML20233A976), Energy Northwest (the licensee) requested a license amendment to revise the Columbia Generating Station Technical Specification (TS) 3.8.7, Distribution Systems - Operating. This license amendment request (LAR) would add a one-time extension of the Completion Time (CT) of TS Action 3.8.7.A, from 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months to 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months , specifically associated with Division 2 Alternating Current (AC) electrical power distribution inoperability caused by inoperability of Division 2, 120/240V Power Panel E-PP-8AE during repairs on its supply transformer E-TR-8A/1. The NRC staff has reviewed the LAR and determined that additional information is required to complete the review. The NRC staff issued request for additional information (RAIs) on August 22, 2020, and August 26, 2020. The NRC staffs additional RAI is listed below. The staff may have additional RAIs. The staff held an RAI clarification call with Energy Northwest on August 31, 2020. The Energy Northwest staff requested, and NRC agreed, to a RAI response by September 1, 2020.

NRC Request No. 8 Based on the proposed Technical Specification (TS) changes, the TS 3.8.7.A will have two Notes:

NOTES

1. Until October 1, 2020, a Completion Time of 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months is applicable for replacement of E-TR-8A/1.

2. Until June 30, 2021, a Completion Time of 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months is applicable for replacement of WMA-42-8F1E or its failed starter coil.

[Note 2 is from a previous amendment]

The licensee has not provided the justifications from both deterministic and risk perspectives if the above Completion Times (CTs) are entered at the same time.

Please either provide requisite justifications if both CTs are entered at the same time or suitably revise the TS Notes so the two CTs cannot be entered at the same time.

Energy Northwest Response to RAI No. 8:

Columbia Generating Station (Columbia) does not intend to schedule repairs to both E-TR-8A/1 (TS 3.8.7.A NOTE 1) and WMA-42-8F1E or its starter coil (TS 3.8.7.A NOTE

2) at the same time. Columbia intends to repair E-TR-8A/1, which provides power to E-

GO2-20-120 Enclosure 1 Page 2 of 2 PP-8AE, as soon as reasonably possible, but prior to October 1, 2020, to address the degrading condition that is the subject of the original request. TS 3.8.7.A NOTE 2 regarding WMA-42-8F1E and its starter coil are related to an industry known Part 21 issue. The current plan is to repair WMA-42-8F1E during Columbias next refueling outage scheduled for 2021. During the outage, fan WMA-FN-53B is not required to be operable so repair of the starter coil in WMA-42-8F1E can be done.

Energy Northwest has revised the note.

NOTES----------

These completion times may not be used simultaneously.

1. Until October 1, 2020, a Completion Time of 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months may be used for replacement of E-TR-8A/1.

2. Until June 30, 2021, a Completion Time of 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months may be used for replacement of WMA-42-8F1E or its failed starter coil.

The notes as shown above are included in Enclosure 2. Columbia will not voluntarily enter into note language related WMA-42-8F1E or its starter coil while engaged in the repair of E-TR-8A/1 or vice versa.

Both E-TR-8A/1 and WMA-42-8F1E are Division 2 resources. If WMA-42-8F1E or its starter coil fail while E-TR-8A/1 work is ongoing, Division 1 resources which are protected and available during the planned evolution on E-TR-8A/1 will provide support.

As discussed in Reference 5 of this letter, Division 1 will be available, protected and able to perform its safety functions. If WMA-FN-53B is not available due to the failure of WMA-42-8F1E or its starter coil, cooling will be provided by the Division 1 fan WMA-FN-53A whose motor starter is WMA-42-7F1D.

GO2-20-120 Enclosure 2 TECHNICAL SPECIFICATION MARKED UP PAGES

Distribution Systems - Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Distribution Systems - Operating LCO 3.8.7 The following AC and DC electrical power distribution subsystems shall be OPERABLE:

a. Division 1 and Division 2 AC electrical power distribution subsystems;

b. Division 1 and Division 2 125 V DC electrical power distribution subsystems;

c. Division 1 250 V DC electrical power distribution subsystem; and

d. Division 3 AC and DC electrical power distribution subsystems.

APPLICABILITY: MODES 1, 2, and 3.

Columbia Generating Station 3.8.7-1 Amendment No. - ------

149,169,225 --

254 -

258

Distribution Systems - Operating 3.8.7 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Division 1 or 2 AC A.1 Restore Division 1 and 2 ---------NOTES----------

electrical power AC electrical power These completion distribution subsystem distribution subsystems to times may not be inoperable. OPERABLE status. used simultaneously.

1. Until October 1, 2020, a Completion Time of 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months may be used for replacement of E-TR-8A/1.

2. Until June 30, 2021, a Completion Time of 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months may be used for replacement of WMA-42-8F1E or its failed starter coil.

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months AND 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a or b

Columbia Generating Station 3.8.7-2 Amendment No. 149,169,225 254 258

Distribution Systems - Operating 3.8.7 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. Division 1 or 2 125 V DC B.1 Restore Division 1 and 2 ----------NOTE----------

electrical power 125 V DC electrical power Until June 30, 2021, a distribution subsystem distribution subsystems to Completion Time of inoperable. OPERABLE status. 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months is applicable for replacement of WMA-42-8F1E or its failed starter coil.

2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months AND 16 hours1.851852e-4 days 0.00444 hours 2.645503e-5 weeks 6.088e-6 months from discovery of failure to meet LCO 3.8.7.a or b

C. Required Action and C.1 ---------------NOTE--------------

associated Completion LCO 3.0.4.a is not Time of Condition A or B applicable when entering not met. MODE 3.

Be in MODE 3. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months D. Division 1 250 V DC D.1 Declare associated Immediately electrical power supported feature(s) distribution subsystem inoperable.

inoperable.

E. One or more Division 3 E.1 Declare High Pressure Immediately AC or DC electrical Core Spray System power distribution inoperable.

subsystems inoperable.

F. Two or more divisions F.1 Enter LCO 3.0.3. Immediately with inoperable electrical power distribution subsystems that result in a loss of function.

Columbia Generating Station 3.8.7-3 Amendment No. 149, 169,225,236 238 258

Distribution Systems - Operating 3.8.7 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.7.1 Verify correct breaker alignments and indicated In accordance power availability to required AC and DC electrical with the power distribution subsystems. Surveillance Frequency Control Program Columbia Generating Station 3.8.7-4 Amendment No.

GO2-20-120 Enclosure 3 TECHNICAL SPECIFICATION CLEAN PAGES