ML15062A531

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NRR E-mail Capture - Response to NRC RAI on Ascm
ML15062A531
Person / Time
Site: Fort Calhoun Omaha Public Power District icon.png
Issue date: 03/03/2015
From: Edwards M
Omaha Public Power District
To: Lyon F
Plant Licensing Branch IV
References
TAC MF4016
Download: ML15062A531 (6)


Text

NRR-PMDAPEm Resource From: EDWARDS, MICHAEL L [medwards@oppd.com]

Sent: Tuesday, March 03, 2015 11:29 AM To: Lyon, Fred Cc: HANSHER, BILL R; 'Ronald Knott (knottron@me.com)'; KNOTT, RONALD L; CARLSON, JAMES A

Subject:

RE: Response to NRC RAI on ASCM (TAC No. MF4016)

Attachments: Answer to NRC Question 2(a).docx Hello Fred, As requested, Im attaching the response to Question 2.a. We are still considering our options following last weeks phone call. I expect we will arrange for a phone call sometime in the near future.

Michael Edwards Nuclear Licensing Engineer Regulatory Assurance Department Omaha Public Power District 9610 Power Lane, Blair NE 68008 402-533-6929 medwards@oppd.com From: Lyon, Fred [1]

Sent: Thursday, February 19, 2015 5:22 AM To: EDWARDS, MICHAEL L Cc: HANSHER, BILL R; 'Ronald Knott (knottron@me.com)'; KNOTT, RONALD L; CARLSON, JAMES A

Subject:

RE: Response to NRC RAI on ASCM (TAC No. MF4016)

Yes; just send me a reply by email. Thanks, Fred From: EDWARDS, MICHAEL L [2]

Sent: Wednesday, February 18, 2015 4:28 PM To: Lyon, Fred Cc: HANSHER, BILL R; 'Ronald Knott (knottron@me.com)'; KNOTT, RONALD L; CARLSON, JAMES A

Subject:

RE: Response to NRC RAI on ASCM (TAC No. MF4016)

Sorry Fred, I pled guilty to quickly. Looks like it wasnt in the NRC RAI although it was in your email.

Michael Edwards Nuclear Licensing Engineer Regulatory Assurance Department Omaha Public Power District 9610 Power Lane, Blair NE 68008 402-533-6929 medwards@oppd.com From: EDWARDS, MICHAEL L Sent: Wednesday, February 18, 2015 1:51 PM 1

To: 'Lyon, Fred' Cc: HANSHER, BILL R; Ronald Knott (knottron@me.com); KNOTT, RONALD L; CARLSON, JAMES A

Subject:

RE: Response to NRC RAI on ASCM (TAC No. MF4016)

You are right Fred, in formatting our response (i.e., pasting in the NRC questions into the Word document), I must have inadvertently deleted it. Sorry, we will get it answered ASAP.

Michael Edwards Nuclear Licensing Engineer Regulatory Assurance Department Omaha Public Power District 9610 Power Lane, Blair NE 68008 402-533-6929 medwards@oppd.com From: Lyon, Fred [3]

Sent: Wednesday, February 18, 2015 1:21 PM To: EDWARDS, MICHAEL L Cc: HANSHER, BILL R

Subject:

RE: Response to NRC RAI on ASCM (TAC No. MF4016)

For Question 2.a., see the email dated 12/18. Probably got cut off the bottom of the page.

2. Regarding the proposed revision to the USAR, Section 5.11.3 and Appendix F, Section 2.1.4, included in Attachment 1 to the LAR:
a. Provide clarification for the term seismic g loading factor and discuss the applicability of this term to the FCS seismic analysis of Class I structures.

From: EDWARDS, MICHAEL L [4]

Sent: Friday, February 13, 2015 9:42 AM To: Lyon, Fred Cc: HANSHER, BILL R

Subject:

Response to NRC RAI on ASCM (TAC No. MF4016)

Good morning Fred, The attached letter was signed this morning and will be EIEd today. Sorry for the delay.

Michael Edwards Nuclear Licensing Engineer Regulatory Assurance Department Omaha Public Power District 9610 Power Lane, Blair NE 68008 402-533-6929 medwards@oppd.com This e-mail contains Omaha Public Power District's confidential and proprietary information and is for use only by the intended recipient. Unless explicitly stated otherwise, this e-mail is not a contract offer, amendment, or 2

acceptance. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.

3

Hearing Identifier: NRR_PMDA Email Number: 1916 Mail Envelope Properties (D9B37C2F1C3EA14784A17E929D6E4771ACDABDD1)

Subject:

RE: Response to NRC RAI on ASCM (TAC No. MF4016)

Sent Date: 3/3/2015 11:28:46 AM Received Date: 3/3/2015 11:28:54 AM From: EDWARDS, MICHAEL L Created By: medwards@oppd.com Recipients:

"HANSHER, BILL R" <bhansher@oppd.com>

Tracking Status: None

"'Ronald Knott (knottron@me.com)'" <knottron@me.com>

Tracking Status: None "KNOTT, RONALD L" <rlknott@oppd.com>

Tracking Status: None "CARLSON, JAMES A" <jacarlson@oppd.com>

Tracking Status: None "Lyon, Fred" <Fred.Lyon@nrc.gov>

Tracking Status: None Post Office: SECEX733.oppd.oppd-ds.com Files Size Date & Time MESSAGE 3767 3/3/2015 11:28:54 AM Answer to NRC Question 2(a).docx 27226 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

Recipients Received:

NRC Question

2. Regarding the proposed revision to the USAR, Section 5.11.3 and Appendix F,Section 2.1.4, included in Attachment 1 to the LAR:
a. Provide clarification for the term "seismic "g" loading factor" and discuss the applicability of this term to the FCS seismic analysis of Class I structures.

OPPD Response As Reference 1 did not contain this question, OPPDs response to Questions2.b and 2.cwere prepared and submitted in Reference 2 without considering this question.The response toQuestion 2.b provided in Reference 2 notes that the proposed revision to USAR Section 5.11.3 is withdrawn. Neither Appendix F as originally submitted (Reference 3) nor the revised Appendix F provided by Reference 2 used this term (i.e., seismic g loading factor) and therefore with the withdrawal of the change to USAR Section 5.11.3, further clarification and discussion regarding this term is unnecessary.

Question 2.c refers to the USAR change in Appendix F, Section 2.1.4 as submitted by Reference 3, which contained the verbiage maximum g value from the curve for the building floorat which the structure is anchored to be used.

The response for Question 2.c contained in Reference 2 provides further clarification regarding application of the response spectra. Please note that as revised by Reference 2, Appendix F, Section 2.1.4 no longer contains the verbiage maximum g value from the curve for the building floor at which the structure is anchored to be used.

References

1. Letter from NRC (C. F. Lyon) to OPPD (L.P. Cortopassi), Fort Calhoun Station, Unit No. 1 - Request for Additional Information RE: License Amendment Request to use ASCM Developed Floor Response Spectra in the Design and Evaluation of Seismic Class I Structures (TAC No. MF4016),

dated December 22, 2014 (ML14353A051) (NRC-14-0138)

2. Letter from OPPD (L. P. Cortopassi) to NRC (Document Control Desk),

Response to NRC Request for Additional Information RE: License Amendment Request to use ASCM-Developed Floor Response Spectra in the Design and Evaluation of Seismic Class I Structures (TAC No. MF4016),

dated February 13, 2015 (ML15050A257) (LIC-15-0020)

3. Letter from OPPD (L. P. Cortopassi) to NRC (Document Control Desk),

License Amendment Request (LAR) 14-05; Design and Evaluation of Page 1 of 1

Seismic Class I Structures Using ASCM Developed Floor Response Spectra,dated April 25, 2014 (ML14118A435) (LIC-14-0036)

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