ML20049H348
| ML20049H348 | |
| Person / Time | |
|---|---|
| Issue date: | 02/18/2020 |
| From: | William Burton NRC/NRR/DNRL/NLRP |
| To: | |
| Burton W, NRR-DNRL 415-6332 | |
| Shared Package | |
| ML20049H344 | List: |
| References | |
| Download: ML20049H348 (3) | |
Text
SLR Document Changes: Water Chemistry Overview of purpose of change: Revise AMP XI.M2, Water Chemistry, to include the latest revision of EPRI guidelines for BWR and PWR.
Basis Document Input: Revise NUREG-2221 as follows.
Add a new row to Table 2-29 as follows:
XI.M2 Water Chemistry Location of Summary of Technical Bases for Changes Change Significant Changes Revision to include the EPRI has issued Pressurized Water Reactor Program latest Electric Power Secondary Water Chemistry Guidelines.
Description Research Institute Revision 8. Consistent with the staffs (EPRI) Pressurized evaluation of an exception documented in References Water Reactor NUREG-XXXX, Safety Evaluation Report Secondary Water Related to the License Renewal of Surry Chemistry Power Station, Units 1 and 2, MM 20YY, Guidelines. Revision Section 3.0.3.2.2, Water Chemistry (Primary
- 8. and Secondary), the staff finds the use of EPRI Pressurized Water Reactor Secondary Revision to include the Water Chemistry Guidelines. Revision 8.
latest Electric Power EPRI 3002010645, dated September 2014, Research Institute acceptable to cite.
(EPRI) BWRVIP-190, BWR Vessel and EPRI has issued BWRVIP-190, BWR Water Internals Project, Chemistry Guidelines - Mandatory, Needed, Volume 1 BWR Water and Good Practice Guidance. Revision 1.
Chemistry Guidelines Consistent with the staffs evaluation of an
- Mandatory, Needed, exception documented in NUREG-2205, and Good Practice Safety Evaluation Report Related to the Guidance. Revision 1 License Renewal of LaSalle County Station, Units 1 and 2, September 2016, Section Updated references. 3.0.3.2.1, Water Chemistry, the staff finds the use of BWRVIP-190, Revision 1, BWR Vessel and Internals Project, Volume 1, BWR Water Chemistry Guidelines - Mandatory, Needed, and Good Practice Guidance, EPRI 3002002623, dated April 24, 2014, acceptable to cite.
References. EPRI 3002010645, PWR Secondary Water Chemistry Guidelines. Revision 8.
Palo Alto, California: Electric Power Research Institute. September 2017.
EPRI 3002002623, BWRVIP-190, BWR Water Chemistry Guidelines - Mandatory, Needed, and Good Practice Guidance. Revision 1. Palo Alto, California: Electric Power Research Institute.
April 2014.
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SLR Document Changes: Water Chemistry GALL-SLR: Revise NUREG-2191 as follows.
XI.M2 WATER CHEMISTRY Program
Description:
The main objective of this program is to mitigate loss of material due to corrosion, cracking due to stress corrosion cracking (SCC) and related mechanisms, and reduction of heat transfer due to fouling in components exposed to a treated water environment. The program includes periodic monitoring of the treated water in order to minimize loss of material or cracking.
The water chemistry program for boiling water reactors (BWRs) relies on monitoring and control of reactor water chemistry based on industry guidelines contained in the Boiling Water Reactor Vessel and Internals Project (BWRVIP)-190 (Electric Power Research Institute (EPRI) 10165793002002623), BWR Vessel and Internals Project: BWR Water Chemistry Guidelines, Revision 1. The BWRVIP-190 has three sets of guidelines: (i) one for reactor water, (ii) one for condensate and feedwater, and (iii) one for control rod drive mechanism cooling water. The water chemistry program for pressurized water reactors (PWRs) relies on monitoring and control of reactor water chemistry based on industry guidelines contained in EPRI 1014986, PWR Primary Water Chemistry Guidelines, Revision 7 and EPRI 10165553002010645, PWR Secondary Water Chemistry Guidelines, Revision 78.
Table XI-01. FSAR Supplement Summaries for GALL-SLR Report Chapter XI Aging Management Programs GALL-SLR Implementation AMP Program Description of Program Schedule*
This program mitigates aging effects of loss of XI.M2 Water material due to corrosion, cracking due to Program is Chemistry SCC, and related mechanisms, and reduction implemented 6 of heat transfer due to fouling in components months prior to exposed to a treated water environment. the Chemistry programs are used to control water subsequent chemistry for impurities (e.g., chloride, period of fluoride, and sulfate) that accelerate extended corrosion. This program relies on monitoring operation and control of water chemistry to keep peak levels of various contaminants below the system-specific limits, based on EPRI guidelines (a) BWRVIP-190 (EPRI 10165793002002623, BWR Water Chemistry Guidelines 20082014 Revision) for BWRs or (b) EPRI 1014986 (PWR Primary Water Chemistry - Revision 7) and EPRI 10165553002010645 (PWR Secondary Water Chemistry
- Revision 78) for PWRs.
Reference:
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SLR Document Changes: Water Chemistry EPRI 10165553002010645, PWR Secondary Water Chemistry Guidelines. Revision 78. Palo Alto, California: Electric Power Research Institute. February September 20092017.
EPRI. BWRVIP-190 (EPRI 10165793002002623), BWR Vessel and Internals Project: BWR Water Chemistry Guidelines., Revision 1. Palo Alto, California: Electric Power Research Institute. October 2008April 2014 SRP-SLR: Revise NUREG-2192 as follows.
Reference:
- 12. EPRI. BWRVIP-190 (EPRI 10165793002002623), BWR Vessel and Internals Project:
BWR Water Chemistry Guidelines., Revision 1. Palo Alto, California: Electric Power Research Institute. October 2008April 2014
- 24. EPRI EPRI TR-10165553002010645, PWR Secondary Water Chemistry Guidelines-Revision 78.Palo Alto, California: Electric Power Research Institute. February 2009 September 2017.
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