ML14105A366: Difference between revisions
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{{#Wiki_filter:0CAN041402 | |||
April 14, 2014 | |||
U.S. Nuclear Regulatory Commission | |||
ATTN: Document Control Desk | |||
11555 Rockville Pike | |||
Rockville, MD 20852 | |||
==SUBJECT:== | |||
Required Response 2 to March 12, 2012, Request for Information (RFI), , Recommendation 2.1, Flood Hazard Evaluation Report | |||
Arkansas Nuclear One - Units 1 and 2 | |||
Docket Nos. 50-313 and 50-368 | |||
License Nos. DPR-51 and NPF-6 | |||
==REFERENCES:== | |||
: 1. NRC letter to Entergy, RFI Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3 of the Near-Term Task Force (NTTF) Review of Insights from the Fukushima Dai-ichi Accident | |||
, dated March 12, 2012 (0CNA031208) | |||
(ML12053A340) 2. Entergy letter to NRC, Entergy's Response to NRC RFI Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendations 2.1 and 2.3 of the NTTF Review of Insights from the Fukushima Dai-ichi | |||
Accident, dated June 8, 2012 (0CAN061202) (ML12164A567) 3. Entergy letter to NRC, Assistance in Obtaining Information on Dams | |||
, dated September 30, 2013 (0CAN091302) (ML13275A067) 4. NRC letter to Entergy, Supplemental Information Related to RFI Pursuant toTitle 10 of the Code of Federal Regulations 50.54(f) Regarding Flooding Hazard Reevaluations for Recommendation 2.1 of the NTTF Review of Insights fron the Fukushima Dai-ichi Accident | |||
, dated March 1, 2013 (0CAN031302) (ML13044A561) 5. Entergy letter to NRC, Required Response 2 to March 12, 2012, Request for Information (RFI), Enclosure 2, Recommendation 2.1, Flood Hazard | |||
Evaluation Report | |||
, dated March 12, 2014 (0CAN031401) (ML14071A459) 6. NRC email to Entergy, Request for Additional Information - Proposed Extension Request Regarding Response 2 to March 12, 2012, Request for Information, Enclosure 2, Recommendation 2.1, Flood Hazard | |||
Reevaluation Report | |||
, dated March 24, 2014 (0CNA031412) | |||
(ML14083A683) | |||
Entergy Operations, Inc. | |||
1448 S.R. 333 Russellville, AR 72802 | |||
Tel 479-858-3110 Jeremy G. Browning Site Vice President Arkansas Nuclear One | |||
0CAN041402 Page 2 of 3 | |||
==Dear Sir or Madam:== | |||
On March 12, 2012, the NRC issued Reference 1 requesting information pursuant to Title 10 of | |||
the Code of Federal Regulations 50.54(f). Enclosure 2 of that letter contained specific | |||
requested Information associated with NTTF Recommendation 2.1 for flooding. By Reference 2 | |||
Entergy Operations, Inc. (Entergy) committed to submit the flood hazard evaluation for | |||
Arkansas Nuclear One (ANO), Units 1 and 2 as a Category 2 site by March 12, 2014. | |||
In September 2013 (Reference 3), Entergy requested the assistance of the NRC to obtain | |||
information from three Districts of the United States Army Corps of Engineers (USACE) to | |||
support the flood hazard reevaluation at ANO. Pursuant to the guidance in Reference 4, | |||
Entergy requested a revision to its commitment for submittal of the flood hazard reevaluation | |||
report to six months after USACE data is received (Reference 5). | |||
By email dated March 24, 2014 (Reference 6), an NRC request for additional information (RAI) | |||
was forwarded to Entergy associated with the revised commitment of Reference 5 as follows: | |||
The NRC staff requests that Entergy provide a more detailed breakdown of the activities and analyses that remain to be conducted, as well as the associated schedule for those activities and analyses. The NRC staff suggests that a Gantt chart or similar format would be an effective means of communicating the schedule information. | |||
The NRC and ANO personnel discussed this request in phone conversation on March 25, 2014. | |||
The NRC suggested ANO review similar information provided to the NRC by the Cooper and | |||
Ft. Calhoun nuclear facilities. Following review, the ANO version of a Gantt chart did not | |||
contain the level of detail provided by the aforementioned facilities. Therefore, remaining | |||
activities were loaded as inputs into a work scheduling database to produce detail similar to that | |||
previously provided to the NRC by other facilities. | |||
The attachment to this letter provides a chart containing the information that Entergy believes provides the necessary response to the RAI. | |||
This letter contains no new regulatory commitment. Should you have any questions concerning | |||
the content of this letter, please contact Stephenie Pyle at 479.858.4704. | |||
I declare under penalty of perjury that the foregoing is true and correct. | |||
Executed on April 14, 2014. | |||
Sincerely, | |||
ORIGINAL SIGNED BY JEREMY G. BROWING | |||
JGB/dbb | |||
==Attachment:== | |||
Detailed Breakdown of Remaining Activities - Flood Hazard Reevaluation | |||
0CAN041402 Page 3 of 3 | |||
cc: Mr. Marc L. Dapas Regional Administrator | |||
U. S. Nuclear Regulatory Commission | |||
Region IV | |||
1600 East Lamar Boulevard Arlington, TX 76011-4511 NRC Senior Resident Inspector | |||
Arkansas Nuclear One | |||
P. O. Box 310 | |||
London, AR 72847 U. S. Nuclear Regulatory Commission | |||
Attn: Mr. Peter Bamford | |||
MS O-8B3 | |||
One White Flint North | |||
11555 Rockville Pike | |||
Rockville, MD 20852 | |||
Attachment to 0CAN041402 Detailed Breakdown of Remaining Activities - Flood Hazard Reevaluation | |||
ANO RAI A NANO RAI ANO Schedule for RAI response | |||
ANO RAI.01 ANO RAI.01 ANO Flood Hazard Evaluation Project | |||
ANO RAI.02 ANO RAI.02 ANO Prob Max Flood on Arkansas River | |||
," | |||
" | |||
"3 "4 | |||
4 4 | |||
ANO RAI.03 ANO RAI.03 Dams Analysis | |||
,4! | |||
" | |||
4 | |||
, | |||
", | |||
, | |||
ANO RAI.04 ANO RAI.04 ANO Combined Events | |||
!" | |||
" | |||
ANO RAI.05 ANO RAI.05 Reevaluation Report | |||
! | |||
" | |||
3 | |||
4 | |||
!}} |
Revision as of 21:20, 1 July 2018
ML14105A366 | |
Person / Time | |
---|---|
Site: | Arkansas Nuclear |
Issue date: | 04/14/2014 |
From: | Browning J G Entergy Operations |
To: | Document Control Desk, Office of Nuclear Reactor Regulation |
References | |
0CAN041402 | |
Download: ML14105A366 (5) | |
Text
0CAN041402
April 14, 2014
U.S. Nuclear Regulatory Commission
ATTN: Document Control Desk
11555 Rockville Pike
Rockville, MD 20852
SUBJECT:
Required Response 2 to March 12, 2012, Request for Information (RFI), , Recommendation 2.1, Flood Hazard Evaluation Report
Arkansas Nuclear One - Units 1 and 2
Docket Nos. 50-313 and 50-368
REFERENCES:
- 1. NRC letter to Entergy, RFI Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3 of the Near-Term Task Force (NTTF) Review of Insights from the Fukushima Dai-ichi Accident
, dated March 12, 2012 (0CNA031208)
(ML12053A340) 2. Entergy letter to NRC, Entergy's Response to NRC RFI Pursuant to 10 CFR 50.54(f) Regarding the Flooding Aspects of Recommendations 2.1 and 2.3 of the NTTF Review of Insights from the Fukushima Dai-ichi
Accident, dated June 8, 2012 (0CAN061202) (ML12164A567) 3. Entergy letter to NRC, Assistance in Obtaining Information on Dams
, dated September 30, 2013 (0CAN091302) (ML13275A067) 4. NRC letter to Entergy, Supplemental Information Related to RFI Pursuant toTitle 10 of the Code of Federal Regulations 50.54(f) Regarding Flooding Hazard Reevaluations for Recommendation 2.1 of the NTTF Review of Insights fron the Fukushima Dai-ichi Accident
, dated March 1, 2013 (0CAN031302) (ML13044A561) 5. Entergy letter to NRC, Required Response 2 to March 12, 2012, Request for Information (RFI), Enclosure 2, Recommendation 2.1, Flood Hazard
Evaluation Report
, dated March 12, 2014 (0CAN031401) (ML14071A459) 6. NRC email to Entergy, Request for Additional Information - Proposed Extension Request Regarding Response 2 to March 12, 2012, Request for Information, Enclosure 2, Recommendation 2.1, Flood Hazard
Reevaluation Report
, dated March 24, 2014 (0CNA031412)
Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR 72802
Tel 479-858-3110 Jeremy G. Browning Site Vice President Arkansas Nuclear One
0CAN041402 Page 2 of 3
Dear Sir or Madam:
On March 12, 2012, the NRC issued Reference 1 requesting information pursuant to Title 10 of
the Code of Federal Regulations 50.54(f). Enclosure 2 of that letter contained specific
requested Information associated with NTTF Recommendation 2.1 for flooding. By Reference 2
Entergy Operations, Inc. (Entergy) committed to submit the flood hazard evaluation for
Arkansas Nuclear One (ANO), Units 1 and 2 as a Category 2 site by March 12, 2014.
In September 2013 (Reference 3), Entergy requested the assistance of the NRC to obtain
information from three Districts of the United States Army Corps of Engineers (USACE) to
support the flood hazard reevaluation at ANO. Pursuant to the guidance in Reference 4,
Entergy requested a revision to its commitment for submittal of the flood hazard reevaluation
report to six months after USACE data is received (Reference 5).
By email dated March 24, 2014 (Reference 6), an NRC request for additional information (RAI)
was forwarded to Entergy associated with the revised commitment of Reference 5 as follows:
The NRC staff requests that Entergy provide a more detailed breakdown of the activities and analyses that remain to be conducted, as well as the associated schedule for those activities and analyses. The NRC staff suggests that a Gantt chart or similar format would be an effective means of communicating the schedule information.
The NRC and ANO personnel discussed this request in phone conversation on March 25, 2014.
The NRC suggested ANO review similar information provided to the NRC by the Cooper and
Ft. Calhoun nuclear facilities. Following review, the ANO version of a Gantt chart did not
contain the level of detail provided by the aforementioned facilities. Therefore, remaining
activities were loaded as inputs into a work scheduling database to produce detail similar to that
previously provided to the NRC by other facilities.
The attachment to this letter provides a chart containing the information that Entergy believes provides the necessary response to the RAI.
This letter contains no new regulatory commitment. Should you have any questions concerning
the content of this letter, please contact Stephenie Pyle at 479.858.4704.
I declare under penalty of perjury that the foregoing is true and correct.
Executed on April 14, 2014.
Sincerely,
ORIGINAL SIGNED BY JEREMY G. BROWING
JGB/dbb
Attachment:
Detailed Breakdown of Remaining Activities - Flood Hazard Reevaluation
0CAN041402 Page 3 of 3
cc: Mr. Marc L. Dapas Regional Administrator
U. S. Nuclear Regulatory Commission
Region IV
1600 East Lamar Boulevard Arlington, TX 76011-4511 NRC Senior Resident Inspector
Arkansas Nuclear One
P. O. Box 310
London, AR 72847 U. S. Nuclear Regulatory Commission
Attn: Mr. Peter Bamford
MS O-8B3
One White Flint North
11555 Rockville Pike
Rockville, MD 20852
Attachment to 0CAN041402 Detailed Breakdown of Remaining Activities - Flood Hazard Reevaluation
ANO RAI A NANO RAI ANO Schedule for RAI response
ANO RAI.01 ANO RAI.01 ANO Flood Hazard Evaluation Project
ANO RAI.02 ANO RAI.02 ANO Prob Max Flood on Arkansas River
,"
"
"3 "4
4 4
ANO RAI.03 ANO RAI.03 Dams Analysis
,4!
"
4
,
",
,
ANO RAI.04 ANO RAI.04 ANO Combined Events
!"
"
ANO RAI.05 ANO RAI.05 Reevaluation Report
!
"
3
4
!