ML22013A317

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Trp 030 - St. Lucie SLRA Breakout Questions_Fuel Oil
ML22013A317
Person / Time
Site: Saint Lucie  NextEra Energy icon.png
Issue date: 01/12/2022
From:
Office of Nuclear Reactor Regulation
To:
Rodriguez-Luccioni H
References
EPID L-2021-SLR-0002
Download: ML22013A317 (1)


Text

St. Lucie SLRA: Breakout Questions SLRA Section: B.2.3.18 Fuel Oil Chemistry TRP: XI. M30 Fuel Oil Chemistry Note: Breakout Questions are provided to the applicant and will be incorporated into the publicly-available audit report.

Technical Reviewer Lydiana Alvarado 01/12/2022 Technical Branch Chief Steven Bloom 01/12/2022 Breakout Session Date/Time To be filled in by PM Applicant Staff NRC staff Question Number SLRA Section SLRA Page Background / Issue (As applicable/needed)

Discussion Question / Request Outcome of Discussion 1

SLRA - Appendix B Section B.2.3.18 XI. M30 Fuel Oil Chemistry SLRA - Page B-163 SLRA Exception #2:

Multilevel sampling or sampling from the lowest point is not used specified in Element 4 of the NUREG-2191, XI.M30. As an alternate to the GALL-SLR Element 4 requirements, the DOSTs are placed on recirculation for 30-minutes prior to sampling. The periodic recirculation of fuel oil also achieves filtering, reducing need for fuel treatments and additives by preventing contaminant build-up.

Why is conditioning the sample, before taking a sample acceptable? The staff is concerned that under normal conditions, when no recirculation is occurring, water may collect at the bottom of the tank(s). Without a true bottom sample, how is settled water, identified, and mitigated? How is the integrity of the tank bottom ensured?