ML24304B068

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Terrapower CP Env Docs - Batch 3 Information Needs Request
ML24304B068
Person / Time
Site: Kemmerer File:TerraPower icon.png
Issue date: 10/30/2024
From:
NRC
To:
NRC/NMSS/DREFS
References
Download: ML24304B068 (4)


Text

From: Joe OHara Sent: Wednesday, October 30, 2024 4:49 PM To: TerraPower-NSFREnvDocsPUBLICem Resource; NRCmailbox@terrapower.com; Beth Dalick; Nick Kellenberger Cc: Patricia Vokoun; Madelyn Nagel; Daniel Barnhurst; Miracle, Ann L; Jackson, Jim

Subject:

Batch #3 Information Needs Request Attachments: Rd 3 Environmental Information Needs - HYD 15 thru 20.docx

Good afternoon, Attached please find Batch #3 Information Needs request as we discussed this afternoon.

There are six total Information needs numbered HYD-15 through HYD-20 and were questions generated after the review of responses to HYD-10, HYD-11 and AECO-10.

We will plan to meet next week with our respective experts to clarify any of the questions.

If you have any questions whatsoever, please contact me.

R/

Joe OHara Project Manager U.S. Nuclear Regulatory Commission Office of Nuclear Materials Safety and Safeguards Division of Rulemaking, Environmental, and Financial Support (240) 808-0546 (C); T5-A68 Ora et labora acta non verba

Hearing Identifier: TerraPower_NSFREnvDocs_Public Email Number: 4

Mail Envelope Properties (DM8PR09MB64878BBF864EE1475041DB24EE542)

Subject:

Batch #3 Information Needs Request Sent Date: 10/30/2024 4:49:14 PM Received Date: 10/30/2024 4:49:17 PM From: Joe OHara

Created By: Joe.OHara@nrc.gov

Recipients:

"Patricia Vokoun" <Patricia.Vokoun@nrc.gov>

Tracking Status: None "Madelyn Nagel" <Madelyn.Nagel@nrc.gov>

Tracking Status: None "Daniel Barnhurst" <Daniel.Barnhurst@nrc.gov>

Tracking Status: None "Miracle, Ann L" <Ann.Miracle@pnnl.gov>

Tracking Status: None "Jackson, Jim" <james.jackson@pnnl.gov>

Tracking Status: None "TerraPower-NSFREnvDocsPUBLICem Resource"

<TerraPower-NSFREnvDocsPUBLICem.Resource@nrc.gov>

Tracking Status: None "NRCmailbox@terrapower.com" <NRCmailbox@terrapower.com>

Tracking Status: None "Beth Dalick" <bdalick@terrapower.com>

Tracking Status: None "Nick Kellenberger" <nkellenberger@terrapower.com>

Tracking Status: None

Post Office: DM8PR09MB6487.namprd09.prod.outlook.com

Files Size Date & Time MESSAGE 704 10/30/2024 4:49:17 PM image001.png 22883 Rd 3 Environmental Information Needs - HYD 15 thru 20.docx 79173

Options Priority: Normal Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:

TerraPower Summary of Information Needs - Batch 3

Info Need ID Information Need / Document Request ER Section Subject Matter Expert (SME)

Water Resources and Hydrology Explain if the underground water sump that would 1.14 and 2.2.1.1.8 (and HYD-15 hold treated sanitary wastewater and cooling responses to Info Needs Prasad, Meyer tower blowdown is a concrete or lined structure HYD-10, HYD-11, and AECO-10)

Explain if the plant effluent would contain any 1.1.4 and 2.2.1.1.8 (and HYD-16 radioactive constituents. Provide a description of responses to Info Needs Prasad, Meyer planned monitoring of plant effluent for radioactive HYD-10, HYD-11, and constituents AECO-10)

Provide estimated dimensions of the rip-rap apron(s) 1.1.4 and 2.2.1.1.8 (and (e.g., number, area and depth of material). Explain if responses to Info Needs HYD-17 the rip-rap apron and the filter layer would be HYD-10, HYD-11, and Prasad.

periodically maintained and provide the expected AECO-10) maintenance frequency Explain if the combined discharge from the 1.1.4 and 2.2.1.1.8 (and underground water sump and outflow from the energy responses to Info Needs Prasad, Meyer HYD-18 island stormwater detention pond at the NPDES HYD-10, HYD-11, and permitted outfall is expected to infiltrate into the AECO-10) floodplain of North Fork Little Muddy Creek Provide a description of the floodplain characteristics 1.1.4 and 2.2.1.1.8 (and HYD-19 where the NPDES permitted discharge will occur (e.g., responses to Info Needs Prasad 1 percent or 0.2 percent-chance floodplain) HYD-10, HYD-11, and AECO-10)

Provide a description of expected wintertime conditions 1.1.4 and 2.2.1.1.8 (and HYD-20 near the NPDES permitted outfall and rip-rap apron responses to Info Needs Prasad (e.g., snow and ice conditions) HYD-10, HYD-11, and AECO-10)