ML16057A032
| ML16057A032 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 02/24/2016 |
| From: | Watford M Plant Licensing Branch IV |
| To: | Gonzales R South Texas |
| References | |
| MF6176, MF6177 | |
| Download: ML16057A032 (4) | |
Text
1 NRR-PMDAPEm Resource From:
Watford, Margaret Sent:
Wednesday, February 24, 2016 3:29 PM To:
'Gonzales, Rafael'; 'Sterling, Lance'
Subject:
UPDATED ILRT RAIs for STP Importance:
High
- Rafael, Here is the latest revision of the draft RAIs. This is the version we would like to discuss during the clarification call tomorrow. Also, everyone has confirmed their availability for the 11 a.m. - 12 p.m. call tomorrow so we are all set.
DRAFT RAIs:
The STP Updated Final Safety Analysis Report, Section 6.2.1.3, Mass and Energy Release Analyses for Postulated Loss of Coolant Accidents states the use of Westinghouse WCAP-10325-P-A methodology for loss of coolant accident (LOCA) mass and energy release analysis. Westinghouse has issued Nuclear Safety Advisory Letters (NSALs)-06-6, 5, and 2, and InfoGram (IG)-14-1 to report errors in this methodology. Also, a new methodology (GOTHIC) is used for the LOCA containment analysis for which the mass and energy input needs to be corrected based on the above NSALs and the infoGram.
STP indicated that the three Westinghouse NSALs were corrected and incorporated into the new LOCA containment analysis and the analysis results have been incorporated into the UFSAR.
RAI-1
Describe any changes in inputs and assumptions in the reanalysis that could potentially reduce the conservatism in the previous analysis. Which FSAR Sections and figures contain the revised results of the LOCA mass and energy releases, containment pressure response, and Equipment Qualification pressure/temperature response analyses? Provide a brief description of the changes from the previous analysis results.
RAI-2
The information provided in the IG-14-1 is generic. Please describe STP plant specific analysis/evaluations performed to resolve the applicability of the errors reported in the IG and their results.
Maggie Watford Project Manager NRR/DORL/LPL4-1 Phone: 301-415-1233 Email: Margaret.Watford@nrc.gov Cube: O-8-H08 Mailstop: O-8-H4A From: Gonzales, Rafael [1]
Sent: Wednesday, February 24, 2016 2:49 PM
2 To: Sterling, Lance ; Watford, Margaret
Subject:
[External_Sender] RE: ILRT Clarification Call Availability
- Maggie, STP can support a call at tomorrow at 10am-11am Central time (11am-12pm Eastern). Please provide a bridge line.
Thank you, Rafael 979-216-6084 STPNOC From: Sterling, Lance Sent: Wednesday, February 24, 2016 12:57 PM To: 'Watford, Margaret' <Margaret.Watford@nrc.gov>
Cc: Gonzales, Rafael <rjgonzales@STPEGS.COM>
Subject:
RE: ILRT Clarification Call Availability
- Maggie, Thank you for the available times. Rafael Gonzales will work with the team to determine which time works best for us and well let you know.
- Thanks, Lance From: Watford, Margaret [2]
Sent: Wednesday, February 24, 2016 12:27 PM To: Sterling, Lance <lsterling@STPEGS.COM>
Subject:
ILRT Clarification Call Availability
Hi Lance, I am working with the staff to set-up a clarification call on the ILRT RAI. Here are the times the staff is available for the call. Please let me know what time works best with your staff.
Thursday, 11 a.m. - 12 p.m. Eastern Thursday, 3 - 4 p.m.
Thursday, 4 - 5 p.m.
Friday, 9 - 9:45 a.m.
Thank you, Maggie Watford Project Manager NRR/DORL/LPL4-1 Phone: 301-415-1233
3 Email: Margaret.Watford@nrc.gov Cube: O-8-H08 Mailstop: O-8-H4A
Hearing Identifier:
NRR_PMDA Email Number:
2674 Mail Envelope Properties (5a13e50a585c4df1a5826e0b9460fbc6)
Subject:
UPDATED ILRT RAIs for STP Sent Date:
2/24/2016 3:29:20 PM Received Date:
2/24/2016 3:29:00 PM From:
Watford, Margaret Created By:
Margaret.Watford@nrc.gov Recipients:
"'Gonzales, Rafael'" <rjgonzales@STPEGS.COM>
Tracking Status: None
"'Sterling, Lance'" <lsterling@STPEGS.COM>
Tracking Status: None Post Office:
HQPWMSMRS02.nrc.gov Files Size Date & Time MESSAGE 3709 2/24/2016 3:29:00 PM Options Priority:
High Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received:
1 NRR-PMDAPEm Resource From:
Watford, Margaret Sent:
Wednesday, February 24, 2016 3:29 PM To:
'Gonzales, Rafael'; 'Sterling, Lance'
Subject:
UPDATED ILRT RAIs for STP Importance:
High
- Rafael, Here is the latest revision of the draft RAIs. This is the version we would like to discuss during the clarification call tomorrow. Also, everyone has confirmed their availability for the 11 a.m. - 12 p.m. call tomorrow so we are all set.
DRAFT RAIs:
The STP Updated Final Safety Analysis Report, Section 6.2.1.3, Mass and Energy Release Analyses for Postulated Loss of Coolant Accidents states the use of Westinghouse WCAP-10325-P-A methodology for loss of coolant accident (LOCA) mass and energy release analysis. Westinghouse has issued Nuclear Safety Advisory Letters (NSALs)-06-6, 5, and 2, and InfoGram (IG)-14-1 to report errors in this methodology. Also, a new methodology (GOTHIC) is used for the LOCA containment analysis for which the mass and energy input needs to be corrected based on the above NSALs and the infoGram.
STP indicated that the three Westinghouse NSALs were corrected and incorporated into the new LOCA containment analysis and the analysis results have been incorporated into the UFSAR.
RAI-1
Describe any changes in inputs and assumptions in the reanalysis that could potentially reduce the conservatism in the previous analysis. Which FSAR Sections and figures contain the revised results of the LOCA mass and energy releases, containment pressure response, and Equipment Qualification pressure/temperature response analyses? Provide a brief description of the changes from the previous analysis results.
RAI-2
The information provided in the IG-14-1 is generic. Please describe STP plant specific analysis/evaluations performed to resolve the applicability of the errors reported in the IG and their results.
Maggie Watford Project Manager NRR/DORL/LPL4-1 Phone: 301-415-1233 Email: Margaret.Watford@nrc.gov Cube: O-8-H08 Mailstop: O-8-H4A From: Gonzales, Rafael [3]
Sent: Wednesday, February 24, 2016 2:49 PM
2 To: Sterling, Lance ; Watford, Margaret
Subject:
[External_Sender] RE: ILRT Clarification Call Availability
- Maggie, STP can support a call at tomorrow at 10am-11am Central time (11am-12pm Eastern). Please provide a bridge line.
Thank you, Rafael 979-216-6084 STPNOC From: Sterling, Lance Sent: Wednesday, February 24, 2016 12:57 PM To: 'Watford, Margaret' <Margaret.Watford@nrc.gov>
Cc: Gonzales, Rafael <rjgonzales@STPEGS.COM>
Subject:
RE: ILRT Clarification Call Availability
- Maggie, Thank you for the available times. Rafael Gonzales will work with the team to determine which time works best for us and well let you know.
- Thanks, Lance From: Watford, Margaret [4]
Sent: Wednesday, February 24, 2016 12:27 PM To: Sterling, Lance <lsterling@STPEGS.COM>
Subject:
ILRT Clarification Call Availability
Hi Lance, I am working with the staff to set-up a clarification call on the ILRT RAI. Here are the times the staff is available for the call. Please let me know what time works best with your staff.
Thursday, 11 a.m. - 12 p.m. Eastern Thursday, 3 - 4 p.m.
Thursday, 4 - 5 p.m.
Friday, 9 - 9:45 a.m.
Thank you, Maggie Watford Project Manager NRR/DORL/LPL4-1 Phone: 301-415-1233
3 Email: Margaret.Watford@nrc.gov Cube: O-8-H08 Mailstop: O-8-H4A
Hearing Identifier:
NRR_PMDA Email Number:
2674 Mail Envelope Properties (5a13e50a585c4df1a5826e0b9460fbc6)
Subject:
UPDATED ILRT RAIs for STP Sent Date:
2/24/2016 3:29:20 PM Received Date:
2/24/2016 3:29:00 PM From:
Watford, Margaret Created By:
Margaret.Watford@nrc.gov Recipients:
"'Gonzales, Rafael'" <rjgonzales@STPEGS.COM>
Tracking Status: None
"'Sterling, Lance'" <lsterling@STPEGS.COM>
Tracking Status: None Post Office:
HQPWMSMRS02.nrc.gov Files Size Date & Time MESSAGE 3709 2/24/2016 3:29:00 PM Options Priority:
High Return Notification:
No Reply Requested:
No Sensitivity:
Normal Expiration Date:
Recipients Received: