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| | author name = Thomas G | | | author name = Thomas G |
| | author affiliation = NRC/NRR/DE/EMCB | | | author affiliation = NRC/NRR/DE/EMCB |
| | addressee name = Modes M C | | | addressee name = Modes M |
| | addressee affiliation = NRC/RGN-I | | | addressee affiliation = NRC/RGN-I |
| | docket = 05000443 | | | docket = 05000443 |
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| | page count = 2 | | | page count = 2 |
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| | =Text= |
| | {{#Wiki_filter:- V Murphy, Martin - |
| | From: Thomas, George Sent: Friday, October 14, 2011 1:58 PM To: Modes, Michael Cc: Murphy, Martin; Conte, Richard |
| | |
| | ==Subject:== |
| | Followon Information Request for TIA Reg Seabrook ASR Attachments: Information Request ASR 10-14-11 .docx |
| | : Michael, As a follow-on from the inspection during the week of 9/26, please have the Seabrook licensee provide the information requested in the attached. |
| | George Thomas NRR/DE/EMCB 301-415-6181 1 2_ |
| | |
| | Information Request for TIA related to Seabrook ASR Degradation of Control Buildinq "B" Electrical Tunnel Concrete |
| | : 1. Please provide the following documents referenced in EDS 36180, Revision 01, "Structural Monitoring Program": |
| | a) EC 145305 b) AR 574120 c) AR 581434 d) EC 250348 e) AR 587429 f) AR 587432 |
| | : 2. Please provide values of cracking index (in mm/m) from the crack measurements made thus far on the ASR affected Electrical B-Tunnel. Also provide values of damage rating index determined from petrographic examination of core samples from the tunnel thus far. |
| | : 3. The NRC staff understands that the licensee has been taking and testing core samples from the interior of the ASR-affected structures. Please explain how Seabrook plans to assess the degradation effects on the exterior of the affected structures in contact with the soil and ground water, which may likely be more severe if the source of moisture is water infiltration from the outside? |
| | : 4. Is Seabrook planning to also measure values of Poisson's ratio of ASR-affected concrete from core samples to enable characterization of the affected concrete using a complete set of measured mechanical properties (namely, elastic modulus, poisson ratio, compressive strength and tensile strength) typically used in analysis and design of concrete structures. Please explain if not.}} |
Latest revision as of 07:50, 12 November 2019
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Category:E-Mail
MONTHYEARML24285A1682024-10-11011 October 2024
Email Response: LTR-24-0212 David Lochbaum Letter - Public Access to Advisory Committee on Reactor Safeguards Materials - Seabrook ASR
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Change in Estimated Review Schedule for Nextera Common Emergency Plan Amendment
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OEDO-22-00419: Email Dated 3-3-2023 to Petitioner on Seabrook ASR Petition
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OEDO-22-00419 - Email Dated 02/24/2023 to Petitioner on Seabrook Unit 1 ASR Petition
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Acceptance of Requested Licensing Action Amendment Request to Revise Cooling Tower Service Water Loop or Cell Requirements (EPID L-2022-LLA-0183) (Email)
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Request for Additional Information Regarding Relief Request 4RA-22-001 (L-2022-LLR-0074)
ML22341A0012022-12-0606 December 2022
Acceptance of Requested Licensing Action Relief Request 4RA-22-001, Proposed Alternative in Accordance with 10 CFR 50.55a(z)(2)
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OEDO-22-00419 - Email: C-10 Response on PRB Initial Assessment - C-10 Petition on Seabrook ASR Concrete Degradation
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2.026 Petition Screen-in Email
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Request for Additional Information Steam Generator Tube Inspection Report Review
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Acceptance Review for TSTF-577 Amendment
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Email Response - LTR-24-0212 - Patricia Skibbee - President C-10 Board of Directors - David Lochbaum
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Request for Additional Information Re 120V Inverter LAR from TS Branch - Final
ML22116A2442022-04-26026 April 2022
Acceptance of Requested Licensing Action Relief Request 3IR-18 and 3IR-19 for End of Third 10-Year ISI Interval for Examinations with Limited Coverage
ML22048B5522022-02-17017 February 2022
LTR-22-0010 Reply to Geoff Gilbert Email Concern About Seabrook Station Concrete Degradation
ML22062B6642022-02-0707 February 2022
Request for Additional Information 120V Inverter LAR from the Electrical Branch
ML22063A0002022-01-25025 January 2022
Requests for Additional Information from Risk Branch Regarding 120V Inverter LAR
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LTR-22-0010 Geoff Gilbert, E-mail Concern About Seabrook Station Concrete Degradation
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Request for Additional Information Regarding Steam Generator Tube Inspection Report Review for RFO 20 (EPID L-2020-LRO-0066) (Email)
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Request for Additional Information Regarding Seabrook (COVID-19) Part 73 Force-on-Force Exemption Request (L-2020-LLE-0219)
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Acceptance of Requested Licensing Action License Amendment Request to Resolve Non-Conservative Heat Flux Hot Channel Factor Requiments
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Request for Additional Information Related to Seabrook License Amendment Request Regarding One-Time Change to the AC Sources Operating TS
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NRR E-mail Capture - Comanche Peak - Acceptance of Requested Licensing Action - Request to Use Later Code Edition of ASME OM Code
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Request for Additional Information Related to Seabrook License Amendment Request Regarding TSTF-411 and TSTF-418 (L-2019-LLA-0237)
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Cancellation of Call with Seabrook on Steam Generator Tube Inspections
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Acceptance of Requested Licensing Action Re Relief Request to Defer ASME Inspections Due COVID-19 (EPIDs L-2020-LLR-0055, -56, and -57)
ML20101H3912020-04-0808 April 2020
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Acceptance of Requested Licensing Action Amendment Request to Revise Degraded Voltage Time Delay Setpoint
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NRR E-mail Capture - Point Beach; Seabrook; Turkey Point - Acceptance of Requested Licensing Action Amendment Request to Revise Technical Specifications to Adopt TSTF-563
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LTR-19-0088 Maura Healey, Attorney General, the Commonwealth of Massachusetts, Ltr NextEras Requests for a License Amendment and Twenty-year Extension Prior to Issuance of a Final Decision in Adjudicatory Hearing on Concrete Degradation at
2024-05-24
[Table view] |
Text
- V Murphy, Martin -
From: Thomas, George Sent: Friday, October 14, 2011 1:58 PM To: Modes, Michael Cc: Murphy, Martin; Conte, Richard
Subject:
Followon Information Request for TIA Reg Seabrook ASR Attachments: Information Request ASR 10-14-11 .docx
- Michael, As a follow-on from the inspection during the week of 9/26, please have the Seabrook licensee provide the information requested in the attached.
George Thomas NRR/DE/EMCB 301-415-6181 1 2_
Information Request for TIA related to Seabrook ASR Degradation of Control Buildinq "B" Electrical Tunnel Concrete
- 1. Please provide the following documents referenced in EDS 36180, Revision 01, "Structural Monitoring Program":
a) EC 145305 b) AR 574120574120c) AR 581434581434d) EC 250348 e) AR 587429587429f) AR 587432587432: 2. Please provide values of cracking index (in mm/m) from the crack measurements made thus far on the ASR affected Electrical B-Tunnel. Also provide values of damage rating index determined from petrographic examination of core samples from the tunnel thus far.
- 3. The NRC staff understands that the licensee has been taking and testing core samples from the interior of the ASR-affected structures. Please explain how Seabrook plans to assess the degradation effects on the exterior of the affected structures in contact with the soil and ground water, which may likely be more severe if the source of moisture is water infiltration from the outside?
- 4. Is Seabrook planning to also measure values of Poisson's ratio of ASR-affected concrete from core samples to enable characterization of the affected concrete using a complete set of measured mechanical properties (namely, elastic modulus, poisson ratio, compressive strength and tensile strength) typically used in analysis and design of concrete structures. Please explain if not.
