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Category:Environmental Monitoring Report
MONTHYEARML24366A0432024-12-19019 December 2024 Enclosure 3: Proposed Changes for LA-3605-002, Environmental Report for the American Centrifuge Plant ML24253A1752024-09-0505 September 2024 American Centrifuge Plant, Correction to Previous Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting ML24253A1762024-08-29029 August 2024 American Centrifuge Plant; Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting ML24072A0442024-02-29029 February 2024 American Centrifuge Operating, LLC, Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting ML20139A0972020-05-0606 May 2020 American Centrifuge Operating, LLC - License Amendment Request Application and Supporting Documents - Proposed Changes for LA-3605-0002, Environmental Report - Part 2 of 2 ML20139A0982020-05-0606 May 2020 American Centrifuge Operating, LLC - License Amendment Request Application and Supporting Documents - Proposed Changes for LA-3605-0002, Environmental Report - Part 1 of 2 2024-09-05
[Table view] Category:Letter
MONTHYEARML25015A1132025-01-0202 January 2025 Supplement to License Amendment Request: Proposed Changes to the American Centrifuge Operating LLCs License Application and Supporting Documents ML24345A2522024-12-31031 December 2024 Cover Letter - NRCs Approval of Centrus/Acos Phase II Extension Request Amendment 27 ML24365A2282024-12-19019 December 2024 Request for Foreign Ownership, Control, or Influence and Facility Clearance Determination in Support of the American Centrifuge Plan ML24366A0402024-12-19019 December 2024 License Amendment Request for American Centrifuge Operating, LLCs License Application for the American Centrifuge Plant - Phase III of HALEU Operations ML24324A3572024-12-11011 December 2024 Cover Letter - NRCs Approval of Centrus/Acos SNM Phys Sec Pln Mods - Amd 26 (Public) ML24339A0052024-12-0303 December 2024 American Centrifuge Operating - Oak Ridge - Information Security Inspection Report 07007004/2024406 (Cover Letter) ML24327A0762024-11-25025 November 2024 American Centrifuge Operating Oak Ridge Information Security Inspection Report 07007004/2024403 ML24331A0502024-11-21021 November 2024 American Centrifuge Plant; Supplement to License Amendment Request for American Centrifuge Operating, LLCs License Application for the American Centrifuge Plant - EPID L-2024-LLA-0131 ML24324A2952024-11-0707 November 2024 American Centrifuge Plant, Submittal of Reference Material in Support of License Amendment Requests for the American Centrifuge Plant - Enterprise Project Identification Numbers L-2023-LLA-0024 and L-2024-LLA-0131 ML24312A1522024-11-0606 November 2024 American Centrifuge Operating Oak Ridge - Order Closeout Report 07007004 2024405 (Cover Letter) ML24318C3482024-10-30030 October 2024 American Centrifuge Plant - Transmittal of Updated Owners, Officers, Directors, and Executive Personnel Listing ML24297A0462024-10-23023 October 2024 American Centrifuge Plant (ACP) Integrated Inspection Report 07007004/2024003 ML24299A0812024-10-17017 October 2024 Response to Request for Additional Information Regarding American Centrifuge Operating, LLC Criticality Accident Alarm System (Enterprise Project Identification Number L-2024-LLA-0070) ML24299A0782024-10-10010 October 2024 American Centrifuge Plant - Transmittal of Information System Security Manager Quarterly Report ML24282B0502024-10-10010 October 2024 American Centrifuge Plant - Physical Security Core Inspection Report 07007004/2024407 ML24068A1942024-09-20020 September 2024 Cover Letter - Approval of Acos Phase 2+ License Amendment ML24068A194 Package A189 (Public w-o Encl 1&2) ML24228A1302024-09-20020 September 2024 Cover Letter - Approval of American Centrifuge Operatings Request to Revise the Classified Matter Security Plans for Its Facilities in Piketon, Ohio and Oak Ridge, Tennessee ML24269A0932024-09-19019 September 2024 Response to Request for Additional Information Related to License Amendment Request for the American Centrifuge Operating, LLCs Security Plan (L-2024-SPR-0009) ML24247A1772024-09-17017 September 2024 Cover Letter - Request for Additional Information Regarding Centrus Energy Corp. American Centrifuge Operating, LLC American Centrifuge Plant Criticality Accident Alarm System (Public) ML24257A1462024-09-13013 September 2024 American Centrifuge Plant - Information Security Inspection Report 07007004/2024402 (Public) ML24262A0842024-09-12012 September 2024 License Amendment Request for American Centrifuge Operating, LLCs License Application and Supporting Documents for the American Centrifuge Plant ML24235A5632024-09-0606 September 2024 Cover Letter - Request for Additional Information Regarding Centrus Energy Corp American Centrifuge Operating, LLC American Centrifuge Plant Physical Security Plan ML24253A1712024-09-0505 September 2024 American Centrifuge Plant, NRC Event Number 57216. Submittal of 60-day Written Event Report Pertaining to the American Centrifuge Operating, Lccs (Aco) Criticality Accident Alarm System (CAAS) Maintenance Outage at the American Centrifuge P ML24253A1752024-09-0505 September 2024 American Centrifuge Plant, Correction to Previous Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting ML24253A1742024-09-0404 September 2024 Submittal of Description of Change and Changed Pages for American Centrifuge Operating, LLC Security Plan/Program ML24253A1762024-08-29029 August 2024 American Centrifuge Plant; Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting ML24248A1252024-08-28028 August 2024 American Centrifuge Plant, Supplemental Information Related to Foreign Ownership, Control, or Influence ML24236A7832024-08-21021 August 2024 Response to Request for Additional Information: Foreign Ownership, Control, or Influence and Facility Clearance Determination in Support of the American Centrifuge Plant ML24236A7802024-08-19019 August 2024 American Centrifuge Plant - Transmittal of Updated Owners, Officers, Directors, and Executive Personnel Listing ML24226A4452024-08-15015 August 2024 American Centrifuge Plant Material Control and Accounting Program Inspection Report 07007004/2024404 Public Cover Letter ML24229A1922024-08-0808 August 2024 American Centrifuge Operating, LLC, Request for Approval: Supplemental Proposed Changes to Security Plans ML24225A1502024-08-0808 August 2024 Submittal of Description of Change and Changed Pages for American Centrifuge Operating, LLC Security Plan/Program ML24213A0582024-07-25025 July 2024 American Centrifuge Operating, LLC - Request for Approval: Supplemental Proposed Changes ML24205A1632024-07-25025 July 2024 American Centrifuge Plant - Integrated Inspection Report 07007004/2024002 ML24204A1772024-07-15015 July 2024 American Centrifuge Operating, LLC, Transmittal of Information System Security Manager Quarterly Report ML24180A0842024-06-28028 June 2024 American Centrifuge Operating, LLC – Inspection Schedule for Calendar Year 2025 ML24150A0622024-05-23023 May 2024 American Centrifuge Plant Request for Approval: Proposed Changes to American Centrifuge Operating, LLCs Security Plan ML24127A1252024-05-13013 May 2024 Backup Licensing Project Manager for American Centrifuge Operating, Llc’S Special Nuclear Material License Special Nuclear Material-7004 for the American Centrifuge Plant ML24135A2932024-05-0909 May 2024 American Centrifuge Plant; License Amendment Request Re Proposed Changes to the American Centrifuge Operating, LLCs License Application and Supporting Documents ML24135A2062024-04-24024 April 2024 Submittal of Amended Description of Change and Changed Pages for American Centrifuge Operating, LLC Security Plans/Program ML24109A1262024-04-23023 April 2024 American Centrifuge Plant - Integrated Inspection Report 07007004/2024001 ML24128A0592024-04-22022 April 2024 American Centrifuge Plant Providing Supplemental Information Related to Foreign Ownership, Control, or Influence Information ML24018A0542024-04-11011 April 2024 Cover Letter: Approval of American Centrifuge Operating LLCs License Amendment Request to Revise Two Information System Security Plan Changes ML24113A0982024-04-11011 April 2024 American Centrifuge Plant, Transmittal of Information System Security Manager Quarterly Report ML24103A0302024-03-20020 March 2024 American Centrifuge Lead Cascade Facility and American Centrifuge Plant - Request for Approval: Proposed Changes to American Centrifuge Operating, Llc’S Security Plans ML24072A0462024-03-0707 March 2024 American Centrifuge Operating, LLC, Supplement to License Amendment Request for License Application for the American Centrifuge Plant - EPID L-2023-LLA-0024 ML24072A0442024-02-29029 February 2024 American Centrifuge Operating, LLC, Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting ML24072A0452024-02-29029 February 2024 American Centrifuge Operating, LLC, Description of Change for the Fundamental Nuclear Material Control Plans for the American Centrifuge Lead Cascade Facility and American Centrifuge Plant ML24058A0582024-02-22022 February 2024 American Centrifuge Operating, LLC, Submittal of Description of Change and Changed Pages for Security Plans/Program ML24054A0332024-02-15015 February 2024 American Centrifuge Plant - Supplement to License Amendment Request for American Centrifuge Operating, LLCs License Application for the American Centrifuge Plant - EPID L-2023-LLA-0024 2025-01-02
[Table view] Category:Periodic Monitoring Report (Radiological/Environmental)
MONTHYEARML24253A1752024-09-0505 September 2024 American Centrifuge Plant, Correction to Previous Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting 2024-09-05
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Am entrtfu ting September 5, 2024 ACO 24-0075 ATTN: Document Control Desk John W. Lubinski, Director Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Laura Dudes, Regional Administrator U.S. Nuclear Regulatory Commission, Region II Marquis One Tower 245 Peachtree Center Ave. NE, Suite 1200 Atlanta, GA 30303-1200 American Centrifuge Plant; Docket Number 70-7004; License Number SNM-2011 Correction to Previous Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting
The purpose of this letter is to submit corrected pages for American Centrifuge Operating, LLC's (ACO) 10 Code of Federal Regulations 70.59 effluent report previously submitted on August 29, 2024 (Reference 1). Specifically, two conservative errors were identified during further internal reviews of the sampling data relating to the total estimated exposure. Enclosure 1 contains corrected pages 1 and 2 for Enclosure 1 of ACO 24-0069 and are shown with a revision bar in the right-hand margin.
If you have any questions regarding this matter, please coritact Stephen Howie, Radiation Protection Manager at (740) 897-2347.
Enclosure:
As Stated Sincerely,
~fl~U Kelly L. Fitch Regulatory Manager American Centrifuge Operating, LLC 3930 U.S. Route 23 South - P.O. Box 628 Piketon, OH 45661
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John Lubinski and Laura Dudes September 5, 2024 ACO 24-0075, Page 2
Reference:
I
- 1. ACO 24-0069 from K.L. Fitch to J.W. Lubinski (NRC HQ) and L. Dudes (NRC RII) regarding Submittal of 10 Code of Federal Regulations 70.59 Effluent Reporting, dated August 29, 2024 cc:
C. Blanton, DOE Idaho J. Downs, NRC HQ Y. Faraz, NRC HQ A. Ford, DOE Idaho J. Hutson, Contractor J. Lingard, DOE Idaho L. Pitts, NRC Region /II M. Reim, DOE-NE D. Woodyatt, NRC HQ of ACO 24-0075 Corrected Pages for ACO's Effluent Reporting for the Period of January 1 through June 30, 2024 Previously Submitted Under ACO 24-0069 Dated August 29, 2024 Information Contained Within Does Not Contain Export Controlled Information Reviewer: Lori A. Hawk/ ACO Date: 09/05/2024 ACO 24-0069 Page 1 of 3 American Centrifuge Plant (ACP)-High-Assay Low-Enriched Uranium (HALEU) Demonstration Cascade Reporting Period of January 1 through June 30, 2024 Overview of Results During the reporting period of January 1, 2024, to June 30, 2024, enrichment operations for American Centrifuge Operating, LLC (ACO) occurred twice between March and June 2024.
Inventory removal or other maintenance activities were ongoing during the dates that enrichment operations were not occurring.
The information provided within this report provides the total release data, specifically uranium and technetium (if any) amounts and concentrations for ACO gaseous and liquid effluents. There were no quantities of radioactive materials released during the reporting period that are significantly above ACO's design objectives previously reviewed as part of the licensing action.
ACO's total estimated exposure is 1.6 E -05 millirem (mrem). Doses were determined using CAP88 Version 4.1.1 for readings obtained during the reporting period.
Additionally, as requested by U.S. Nuclear Regulatory Commission staff in June 2024, the Hydrogen Fluoride (HF) concentration for the maximumly exposed individual is also provided within this report.
The total release data for the reporting period of January 1 through June 30, 2024, is as follows:
Radionuclide Total Gaseous Releases Total Liquid Releases Unit of Measure 234u 8.94 E-03 1.30 E -01 milliCurie (mCi) 23su 1.lOE-03 5.47 E -03 mCi 23su 8.75 E-03 9.08 E -02 mCi 99Tc 0.00 E +00 0.00 E +00 mCi 99Tc lab results were undetectable.
As shown above, the total release data is well below ACO's As Low As Reasonably Achievable goals for both airborne and waterborne radioactive releases as committed within Chapter 9 ofLA-3605-0001, License Application for the American Centrifuge Plant.
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Airborne Releases Monitored Vents
- Enclosure 1 ACO 24-0069 Page 2 of3 The estimate of public dose due to gaseous effluents over the previous year is 1.6 E -05 mrem.
Combined ACP Monitored Vents Total Stack Flow (cubic meter fm3l) 8.28 E +05 Minimmp
..I Percent
?
- Concentration. :,
Detectable
.Maximum..
microcuries per.'
Estimated Activity
, Potential ****
,, ~," '
milliliter Error
Release
- Concentrat c11ci/m*n.. **
',/',,.,,
ion (MPC) *
, Radionuclid~ *.
µCi/ml*
mCi 234U (boundary) 1.04 E -18 8.53 E-20 3.61 E -19 0.000035%
235U (boundary) 1.29 E -19 1.41 E -20 6.94 E-20 0.000004%
238U (boundary) 1.02 E -18 1.08 E -19 1.20 E -19 0.000034%
99Tc (boundary) 0.00 E 0 0.00 E+00 0.00 E +00 0.00 E 0 99Tc lab results were undetectable.
X-3001 Process Building North Purge Vacuum~vacuation Vacuum Vent for HALEU Demonstration Cascade Total Stack Flow (m3) 8.28 E +05 Estimated,
"¥
,,concentr~tion Err9r MD.A\\
- Re.ease Percent Radionuclid~;;*
, µCi/ml
µCi/ml'*
µCi/ml.*
.. mCi MPC 234U (vent) 1.08 E -11 8.83E-13 3.47 E-12 8.94 E -03 234U (boundary) 1.04 E ~18 8.53 E,.20 3.61 E -19 0.000035%
235v (vent) 1.33 E -12 1.46 E -13 7.19 E -13 1.10 E-03 235U (boundary) 1.29 E-19 1.41 E -20 6.94 E-20 0.000004%
238U (vent) 1.06 E-11 1.llE-12 1.25 E -12 8.75 E -03 238U (boundary) 1.02 E-18 1.08 E -19 1.20 E -19 0.000034%
99Tc (vent) 0.00 E +00 0.00 E+00 0.00 E +00 0.00 E +00 99Tc (boundary) o.oo E +oo o.oo E +oo.
0.00 E+00 0.00 E+00 99Tc lab results were undetectable.