ML21111A154

NRC-2021-000096 - Resp 1 - Final, Agency Records Subject to the Request Are Enclosed

ML21111A154
Person / Time
Issue date:	04/16/2021
From:	NRC/OCIO
To:	- No Known Affiliation
Shared Package
ML21111A151	List: ML21111A152 ML21111A154
References
FOIA, NRC-2021-000096
Download: ML21111A154 (8)

Text

From: Brookhart, Lee Sent: Wednesday, April 15, 2015 7:23 AM To: Simpson, Eric

Subject:

FW: Callaway ISFSI - Deluge test pictures Attachments: Deluge test pictures.pdf From: Hartman, Thomas Sent: Tuesday, April 14, 2015 7:01 AM To: Brookhart, Lee

Subject:

FW: Callaway ISFSI - Deluge test pictures FYI. "Slight wetting" after the deluge test (last pie). It looks more than that to me.

Tom From: Ptasznik, Elizabeth M [1]

Sent: Monday, April 13, 2015 7:33 PM To: DL CAL NRC Resident Inspectors Cc: Ewens, Steve E

Subject:

Callaway ISFSI - Deluge test pictures Tom-As requested, please find the attached photo's which were taken during the performance of last week's deluge test on the lSFSI.

ELIZABETH PT ASZNIK Engineer Regulatory Affairs - Licensing C !(b)(6)  !

E eptasznik(cv,ameren.com Ameren Missouri Callaway Energy Center PO Box 620; MC CA-460 Fulton, MO 6525 l www.ameren.com Pleu\c con~idcr the cn,*ironmcnt IJcforc printing I his c.. muil.

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Deluge Test:

Post-Deluge Test; Only slight wetting at the CEC baseplate From: Brookhart, Lee Sent: Friday, March 15, 2019 12:17 PM To: Pruett, Troy Cc: Smith, Chris

Subject:

RE: Storm test Here is the test per the FSAR approved by the NRC iv. Storm Water Control Test The H]-STORM UMAX VVM is designed to direct storm water and snow/ice melt-off away from the CEC Flange and the Closure Lid where the air passages are located. The engineered rain caps installed on the inlet and outlet serve to keep rain and snow away from the VVM cavity. Moreover, any minor amount of moisture that may intrude into the MPC storage cavity due to wind-driven rain will evaporate in a short period of time due to the continuous movement of heated air in the MPC storage cavity. To verify the effectiveness of the storm water drainage design, a one-time test shall be performed after construction of the first VVM to ensure that the design is effective in directing storm water away from the VVM to the ISFSI' s drainage system.

The VVM shall be subjected to a water spray that simulates exposure to rainfall of at least 2 inches er hour for at least one hour. At the conclusion of the water spray, the depth of the water (if any) in the bottom of the module cavity shall be measured. Any amount of water accumulation beyond wetting of the Bottom Plate indicates an inadequacy in rain diversion features of the VVM and shall be appropriately corrected. It should be noted that accumulation of water is not injLu*ious to the thermal performance of the system. The only deleterious effect of prolonged exposure to water is the potential for reducing the service life of the preservative on the wetted surface of the Bottom Plate, CEC shell, and other interfacing components.

Fro m: Brookhart, Lee Sent : Thursday, March 14, 2019 5:38 PM To: Pruett, Troy <Troy.Pruett@nrc.gov>

Subject:

Storm test

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