ML24086A080
| ML24086A080 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/21/2024 |
| From: | Public Commenter Public Commenter |
| To: | NRC/NMSS/DREFS |
| NRC/NMSS/DREFS | |
| References | |
| 89FR10107 | |
| Download: ML24086A080 (3) | |
Text
From: Rosellen Aleguire <rosellenal@gmail.com>
Sent: Thursday, March 21, 2024 9:39 AM To: OconeeEnvironmental Resource
Subject:
[External_Sender] Duke Energy - Oconee Nuclear Site re licensing
To all the NRC staff who are working on the re-licensing application for the 20 year extension of the Oconee Nuclear Site in Oconee County.
Thank you for listening to my concerns.
I attended both the in-person meeting held at the Madren Center of Clemson University and the on-line meeting which followed a week later.
I asked directly and specifically "will the NRC include the parameters of climate change in your Environmental Study for this Duke Energy-ONS application?"
As I did not receive a straight answer, but a run-a-round and confusing reply; I am more concerned than I was before as to your exclusion of climate change in the environmental review.
It appears to me that the NRC staff already knows that the inclusion of the parameters of climate change will lead to the NRC's rejection of the Duke Energy/ONS application for extension. Otherwise, there would be no issue in including the effects of climate change in your Environmental Study.
There is another concern I have for re-licensing the ONS and that is the on-site storage of spent nuclear rods.
Duke Energy uses NUHOMS storage modules. The NUHOMS system uses thin-wall stainless steel canisters to store spent fuel assemblies.
Thin-wall canisters are vulnerable to short-terms cracking from various manufacturing and environmental causes. The NRC has stated, once these microscopic cracks start, they can grow through the canister wall in 16 years. Note that the three ONS reactors are approximately 50 years old!
There is no technology to find cracks once canisters are loaded with the highly radioactive spent nuclear fuel. The ONS canisters could potentially have through the wall cracks already.
The canisters do not stop gamma or neutron radiation, so they are stored in concrete overpacks. However, the concrete overpacks have huge air vents for convection cooling around the canisters. Radiation streams out of these air vents around the clock.
The solution is to use only thick wall metal casks to meet ASME N3 safety requirements.
Only thick-wall metal casks such as the Castor ductile cast iron casks have ASME N3 certification for both storage and transport.
Thin-wall canisters are 1/2" to 5/8" thick.
Thick-wall metal casks are 10" to over 19" thick.
To merit NRC approval, all thin-wall canisters need to have fuel assemblies repackaged into thick-wall casks.
Again, thank you for listening.
Rosellen Aleguire
Resident within the emergency planning zone.
Federal Register Notice: 89FR10107 Comment Number: 5
Mail Envelope Properties (CACD=KVUom5JfE+0+10YWGnB_eB1bO_PopmKn7Oh_MW9TOJL=dg)
Subject:
[External_Sender] Duke Energy - Oconee Nuclear Site re licensing Sent Date: 3/21/2024 9:38:36 AM Received Date: 3/21/2024 9:38:59 AM From: Rosellen Aleguire
Created By: rosellenal@gmail.com
Recipients:
"OconeeEnvironmental Resource" <OconeeEnvironmental.Resource@nrc.gov>
Tracking Status: None
Post Office: mail.gmail.com
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