ML25203A217
| ML25203A217 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 07/22/2025 |
| From: | Reactor Decommissioning Branch |
| To: | |
| References | |
| Download: ML25203A217 (1) | |
Text
NRC Public Meeting for Crystal River Unit 3 Partial Site Release
Purpose 2
Obtain comments on a Partial Site Release request for the Crystal River, Unit 3 facility.
The meeting will be transcribed.
Agenda
- Applicable Regulations
- Application
- Providing Public Meeting Comments
- Feedback Directions
- Comment Period 3
4 If a licensee wants to release part of a facility or site for unrestricted use at any time before receiving approval of a license termination plan, written approval from the NRC is required. The requirements for releasing part of a facility or site for unrestricted use are found in 10 CFR 50.83.
Applicable Regulations
5 Perform a historical site assessment Evaluate the impact of releasing the property, examples include Ensure no reduction in effectiveness of emergency planning or physical security Revise environmental monitoring program and offsite dose calculation manual as necessary Ensure dose to public does not exceed the limits and standards of 10 CFR 20, Subpart D Perform surveys adequate to demonstrate compliance with the unrestricted use radiological criteria in 10 CFR 20.1402 for impacted areas Evaluate the environmental effects of releasing the property Applicable Regulations: 10 CFR 50.83
Applicable Regulations: 10 CFR 20, Subpart D Licensee shall conduct operations in a manner that limits the Total Effective Dose Equivalent to members of the public to not more than 100 mrem/yr exclusive of background radiation or medical applications from external sources, exclusive of medical applications, in any unrestricted area to less than 2 mrem/hr 6
Applicable Regulations: 10 CFR 20.1402 A site is acceptable for unrestricted use if residual radioactivity that is distinguishable from background has been reduced As Low As Reasonably Achievable and results in a Total Effective Dose Equivalent to an average member of the critical group that does not exceed 25 mrem/yr.
The 25 mrem/yr Total Effective Dose Equivalent includes dose associated with groundwater sources of drinking water.
7
Application Impacted Areas mean areas with some reasonable potential for residual radioactivity in excess of natural background or fallout levels Non-impacted areas mean areas with no reasonable potential for residual radioactivity in excess of natural background or fallout levels 8
2019 Partial Site Release
2025 Partial Site Release
2025 Partial Site Release
ADP initial application (ADAMS Package Accession No. ML25041A177)
NRC accepted the application for review on March 20, 2025 (ADAMS Package Accession No. ML25069A435)
ADP approach
Demonstrate residual radioactivity in the areas to be released was indistinguishable from background radiation as Duke Energy Florida did in 2019
Demonstrate no groundwater contamination
NRC discussed the application with ADP during a virtual audit between May 12 and May 29, 2025
ADP submitted a revised application on June 18, 2025 (ADAMS Package Accession No. ML25170A017)
NRC review is currently ongoing
Indistinguishable from
Background:
Reference Area Activities
Approach: Compare radioactivity of proposed release areas to offsite reference (background) areas
Identify reference areas with similar characteristics as the proposed release area
Obtain Data
Randomly choose sample locations
Obtain samples
Analyze for radioactivity
Indistinguishable from
Background:
Release Area Activities
Scan release areas to identify locations of elevated activity
Identify sample locations
Random
Judgmental
Investigative
Obtain samples
Analyze samples for residual radioactivity
Indistinguishable from
Background:
Demonstrating Compliance
Initially, ADP attempted to show the release areas are indistinguishable from background by performing the following steps
Calculate an average sample value
(µ)
Calculate a sample standard deviation ()
Show all samples are less than +
2
After the audit, ADP used statistical tests to demonstrate release areas are indistinguishable from background
Groundwater Evaluation
Initial approach:
Stated that groundwater was not suitable for drinking water or irrigation use due to mixing with seawater
Suggested that pumping wells would not be permitted by the State
Performed modeling that indicated the groundwater pathway is an insignificant contributor to dose
After the audit:
Provided results of laboratory analyses that indicated plant-related radionuclides were not present in groundwater of the partial site release areas
Application Summary
ADP wants to release 618 acres of both impacted and non-impacted land areas for unrestricted use via the current Partial Site Release request
ADP wants to update the Crystal River license Technical Specifications to recognize
The 3,489 acres released in 2019
The current proposed 618 acres release
ADP is demonstrating compliance with the regulations by showing that
Residual contamination is indistinguishable from background
There is no groundwater contamination
Public Comments
Providing Comments: Public Meeting
During this public meeting, which is being transcribed
via computer: please select the raise hand icon
via phone: please press *5 to raise your hand; press *5 again to lower your hand
The TEAMS facilitator will call your name and enable your microphone after seeing a raised hand
- If joining via phone, it will take about 4 seconds for the system to instruct the caller to press *6 to unmute your microphone
Please introduce yourself and clearly state your name and affiliation for the court reporter
Your microphone will be disabled after you are done
Federal Rulemaking website: http://www.regulations.gov
Search for Docket ID NRC-2025-0181
Comments due by August 1, 2025
Providing Comments: Other
By mail:
Office of Administration Mail Stop: TWFN-7-A60M U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 ATTN: Program Management, Announcements and Editing Staff
Federal Rulemaking website: http://www.regulations.gov Search for Docket ID NRC-2025-0181 Comments due by August 1, 2025
NRC Public Meeting Feedback
To improve future meetings and to provide feedback on this meeting, you are invited to complete a questionnaire by one of the following methods:
Scanning the Quick Response (QR) code on this slide.
Going to the Public Meeting Schedule on the NRC public website and pressing the Meeting Feedback link for the specific meeting or pressing the [more] link for a specific meeting and then pressing the Meeting Feedback link on the Meeting Details page.
Filling out a Public Meeting Feedback Form hard copy in the room and either providing it to an NRC staff member or mailing in the form.