ML24240A087

Louisiana Energy Services, LLC - Semi-Annual Radiological Effluent Release Report for January 1, 2024 Through June 30, 2024

ML24240A087
Person / Time
Site:	07003103
Issue date:	08/27/2024
From:	Schwarz C Louisiana Energy Services
To:	Office of Nuclear Material Safety and Safeguards, Document Control Desk
References
LES-24-097-NRC
Download: ML24240A087 (1)

Text

LES-24-097-NRC Urenco USA Inc.

UUI l P.O. Box 1789 l 275 Hwy. 176 l Eunice l New Mexico l 88231 l USA T: +1 (575) 394-4646 l W: www.urencousa.com

© 2024 Urenco USA Inc.

1 August, 2024 ATTN: Document Control Desk Director Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Louisiana Energy Services, LLC NRC Docket No. 70-3103

Subject:

Semi-Annual Radiological Effluent Release Report for January 1, 2024 through June 30, 2024 Pursuant to 10 CFR 70.59, Louisiana Energy Services, LLC, also dba Urenco USA, herewith submits the subject report. Enclosure 1 specifies the quantities released of licensed principal radionuclides in liquid or gaseous form to uncontrolled areas.

Should there be any questions regarding this submittal, please contact Holly Harvey, Licensing Specialist at 575.394.6526.

Respectfully, Chris Schwarz Licensing and ECP Manager

Enclosure:

1.

Semi-Annual Radiological Effluent Release Report for January 1, 2024 through June 30, 2024 CC:

USNRC Region II RidsRgn2MailCenter@nrc.gov Jonathan Rowley, Senior Project Manager - UUSA U.S. Nuclear Regulatory Commission Jonathan.Rowley@NRC.gov 27

LES-24-097-NRC Urenco USA Inc.

UUI l P.O. Box 1789 l 275 Hwy. 176 l Eunice l New Mexico l 88231 l USA T: +1 (575) 394-4646 l W: www.urencousa.com

© 2024 Urenco USA Inc.

2 ENCLOSURE 1 Semi-Annual Radiological Effluent Release Report for January 1, 2024 through June 30, 2024

URENCO USA: Report of Radioactivity in Effluents: Liquid & Air: January 2024 - June 2024 There were no releases to the public during the reporting period that exceeded regulatory requirements, and detected isotopic uranium activities were comparable to pre-operational activities. No dose assessment was performed because the maximum potential dose directly at the point of gaseous and liquid effluent discharge points were acceptable. The potential maximum doses directly at the discharge points for both liquid and gaseous effluent were shown to be less than 10% of the radionuclide concentration dose.

In liquid effluent, the concentrations of isotopic uranium were either below the Minimum Detectable Concentration (MDC) or less than 10% of values listed in 10 CFR 20, Appendix B, Table 3, Releases to Sewers (Table 1-1).

In gaseous effluent, the gross uranium activity was either below the Minimum Detectable Activity (MDA) or less than 10% of values listed in 10 CFR 20, Appendix B, Table 2, Effluent Concentrations - Class D Air for U234, U235, and U238.

The concentrations of isotopic uranium in gaseous effluent was either below the Minimum Detectable Concentration (MDC) or less than 10% of values listed in 10 CFR 20.1301, 10 CFR 20.1302, and 10 CFR 20.1101(d), as described in NRC Regulatory Guide 4.20 Constraint on Releases of Airborne Radioactive Materials to the Environment for Licensees other than Power Reactors dated December 1996.

The Centrifuge Test and Post Mortem Building resumed functionality in November 2023. The initial effluent filter was installed in November 2023 upon system start up and was removed in February 2024, upon which subsequent filters were collected monthly.

LIST OF TABLES Table No.

Title 1-1 Lift Station 1 Wastewater Effluent - Radionuclides Quarters 1 & 2, 2024 1-2 Separations Building Module-1001 (SBM 1001): Pumped Extract Exhaust Gaseous Effluent Vent System, 1001-562-1MA1 & 1001-562-1MA2 Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 1-3 Separations Building Module-1003 (SBM 1003): Pumped Extract Exhaust Gaseous Effluent Vent System, 1003-562-1MA1 & 1003-562-1MA2 Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 1-4 Separations Building Module-1005 (SBM 1005): Pumped Extract Exhaust Gaseous Effluent Vent System, 1005-562-1MA1 & 1005-562-1MA2 Gross Alpha & Beta, and Radionuclides Quarters: 1 & 2, 2024 1-5 Cylinder Receipt and Dispatch Building-1100 (CRDB 1100): Local Extract Exhaust Gaseous Effluent Vent System, 1100-562-1MA1 & 1100-562-1MA2 - Gross Alpha &

Beta, and Radionuclides: Quarters 1 & 2, 2024 1-6 Cylinder Receipt and Dispatch Building-1100 (CRDB 1100): Fume Hood Exhaust Gaseous Effluent Vent System, 1100-562-2MA1 & 1100-562-2MA2 Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 1-7 Centrifuge Test and Post Mortem Building-1300 (CTPMB 1300): Local Extract Exhaust Gaseous Effluent Vent System, 1300-562-1MA1 Gross Alpha & Beta, and Radionuclides:

Quarters 1 & 2, 2024

TABLE 1-1 Lift Station 1 Wastewater Effluent - Radionuclides, Quarters 1 & 2, 2024 URENCO USA Lea County, New Mexico Radionuclide Sample Date (Date/Time)

Sample Period Total Time (days)

Results (Ci/ml)

Counting Uncertainty (Ci/ml)

Total Flow*

(gallons/day)

Total Gallons Total Liters Quantity Released (Ci)

Uranium - 234 4.00E-10 1.30E-11 13,000 2.35E+06 8.91E+06 Result Below LLD Uranium - 235 0.00E+00 0.00E+00 13,000 2.35E+06 8.91E+06 Result Below LLD Uranium - 238 0.00E+00 0.00E+00 13,000 2.35E+06 8.91E+06 Result Below LLD Uranium - 234 4.30E-10 1.40E-11 13,000 2.35E+06 8.91E+06 Result Below LLD Uranium - 235 0.00E+00 0.00E+00 13,000 2.35E+06 8.91E+06 Result Below LLD Uranium - 238 0.00E+00 0.00E+00 13,000 2.35E+06 8.91E+06 Result Below LLD URENCO USA Lea County New Mexico Lift Station 1 WasteWater Effluent-Radionuclides

% of Table 3 of Appendix B to 10 CFR 20 Values-Monthly Average Release to Sewers 1Lift Station 1 - January - June 2024 01/01/24 -

06/30/24 5/15/2024 1000 Result Below LLD Result Below LLD Result Below LLD 01/01/24 -

06/30/24 181 Result Below LLD 5/15/2024 1000 Result Below LLD Lift Station 1 Duplicate - January - June 2024 Result Below LLD 181 Notes:

1.

• = Table 3.4-4 Anticipated Normal Plant Water Consumption from the Environmental Report, Rev. 23, lists Total Personnel Water Use as approximately 13,000 gallons per day.

2.

µCi/mL = microCuries per milliliter.

3.

Radionuclides analyzed using method EICHROM AC01 by Cardinal Laboratories of Hobbs, NM.

4.

Quantity released is calculated if the result equals or exceeds the LLD. Facility-required lower level of detection (LLD) is 3.09E-9 µCi/mL.

TABLE 1-2 Separations Building Module-1001 (SBM 1001): Pumped Extract Exhaust Gaseous Effluent Vent System, 1001-562-1MA1 & 1001-562-1MA2 Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 URENCO USA Lea County, New Mexico.

Sample ID (Functional Loc. / On Date Sample Date (Off Date/Time)

Sample Period Analyte Gross Result (Ci/ml)

MDA (Ci/ml)

@ 95 CL Instrument Unc (Ci/ml)

Total Vent System Flow (m3)

Quantity Released (Ci)

% of Table 2 of Appendix B to 10 CFR 20 Values 10015621MA1 010524 02/05/2024 1420 01/05/24 - 02/05/24 9.72E-17 2.03E-16 4.51E-08 3.70E+05

<MDA

<MDA 10015621MA1 020524 03/06/2024 1407 02/05/24 - 03/06/24 9.86E-17 2.06E-16 4.51E-08 4.15E+05

<MDA

<MDA 10015621MA1 030624 04/02/2024 1020 03/06/24 - 04/02/24 2.74E-17 2.29E-16 2.25E-08 3.75E+05

<MDA

<MDA 10015621MA1 040224 05/03/2024 1009 04/02/24 - 05/03/24

-9.16E-19 2.01E-16 2.25E-08 4.34E+05

<MDA

<MDA 10015621MA1 050324 06/05/2024 1431 05/03/24 - 06/05/24 2.12E-17 1.77E-16 2.25E-08 4.66E+05

<MDA

<MDA 10015621MA1 060524 07/02/2024 1225 06/05/24 - 07/02/24 1.14E-17 2.17E-16 2.25E-08 3.78E+05

<MDA

<MDA 10015621MA1 010524 02/05/2024 1420 01/05/24 - 02/05/24 8.11E-16 4.72E-15 1.67E-07 3.70E+05

<MDA

<MDA 10015621MA1 020524 03/06/2024 1407 02/05/24 - 03/06/24 8.03E-16 4.79E-15 1.58E-07 4.15E+05

<MDA

<MDA 10015621MA1 030624 04/02/2024 1020 03/06/24 - 04/02/24 6.59E-16 5.33E-15 1.40E-07 3.75E+05

<MDA

<MDA 10015621MA1 040224 05/03/2024 1009 04/02/24 - 05/03/24 4.29E-16 4.68E-15 1.49E-07 4.34E+05

<MDA

<MDA 10015621MA1 050324 06/05/2024 1431 05/03/24 - 06/05/24 8.92E-16 4.13E-15 1.67E-07 4.66E+05

<MDA

<MDA 10015621MA1 060524 07/02/2024 1225 06/05/24 - 07/02/24 8.75E-16 5.06E-15 1.71E-07 3.78E+05

<MDA

<MDA 10015621MA2 010524 02/05/2024 1422 01/05/24 - 02/05/24 0.00E+00 1.63E-16 0.00E+00 5.06E+05

<MDA

<MDA 10015621MA2 020524 03/06/2024 1358 02/05/24 - 03/06/24 1.11E-16 1.54E-16 5.41E-08 4.85E+05

<MDA

<MDA 10015621MA2 030624 04/02/2024 1015 03/06/24 - 04/02/24 2.21E-17 1.84E-16 2.25E-08 4.34E+05

<MDA

<MDA 10015621MA2 040224 05/03/2024 1012 04/02/24 - 05/03/24 0.00E+00 1.68E-16 0.00E+00 5.04E+05

<MDA

<MDA 10015621MA2 050324 06/05/2024 1436 05/03/24 - 06/05/24 4.87E-17 2.03E-16 3.19E-08 5.44E+05

<MDA

<MDA 10015621MA2 060524 07/02/2024 1230 06/05/24 - 07/02/24 8.11E-17 2.25E-16 3.90E-08 4.39E+05

<MDA

<MDA 10015621MA2 010524 02/05/2024 1422 01/05/24 - 02/05/24 4.63E-16 3.81E-15 1.44E-07 5.06E+05

<MDA

<MDA 10015621MA2 020524 03/06/2024 1358 02/05/24 - 03/06/24 3.99E-16 3.59E-15 1.40E-07 4.85E+05

<MDA

<MDA 10015621MA2 030624 04/02/2024 1015 03/06/24 - 04/02/24 5.52E-16 4.29E-15 1.40E-07 4.34E+05

<MDA

<MDA 10015621MA2 040224 05/03/2024 1012 04/02/24 - 05/03/24 4.63E-16 3.91E-15 1.35E-07 5.04E+05

<MDA

<MDA 10015621MA2 050324 06/05/2024 1436 05/03/24 - 06/05/24 5.59E-16 4.73E-15 1.35E-07 5.44E+05

<MDA

<MDA 10015621MA2 060524 07/02/2024 1230 06/05/24 - 07/02/24 7.83E-16 5.25E-15 1.49E-07 4.39E+05

<MDA

<MDA Gross Beta Seperations Building Module - 1001 (SBM 1001) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 1001-562-1MA2 Gross Beta Gross Alpha 1001-562-1MA1 Gross Alpha Radionuclide Sample Date (Off Date)

Sample Period Result (Ci/ml)

Uncertainty (2 TPU)

(Ci/ml)

Uncertainty (1 TPU)

(Ci/ml)

MDC (Ci/ml)

Total Flow (m3)

Quantity Released (Ci)

Uranium-234 1st Qtr 2024 4.95E-16 2.35E-16 2.38E-16 1.43E-16 0.00 Uranium-235 1st Qtr 2024 1.93E-16 1.61E-16 1.61E-16 1.40E-16 0.00 Uranium-238 1st Qtr 2024 6.06E-16 2.59E-16 2.63E-16 1.30E-16 0.00 Uranium-234 2nd Qtr 2024 4.06E-16 1.88E-16 9.11E-17 1.90E-16 0.00 Uranium-235 2nd Qtr 2024 8.73E-17 1.06E-16 1.53E-16 1.06E-16 Result Below MDC Uranium-238 2nd Qtr 2024 2.07E-16 1.35E-16 1.04E-16 1.36E-16 0.00 Uranium-234 1st Qtr 2024 3.60E-16 1.09E-16 1.12E-16 4.59E-17 0.00 Uranium-235 1st Qtr 2024 6.61E-17 5.27E-17 5.29E-17 5.66E-17 0.00 Uranium-238 1st Qtr 2024 1.97E-16 7.83E-17 7.96E-17 3.23E-17 0.00 Uranium-234 2nd Qtr 2024 2.77E-16 1.04E-16 5.02E-17 1.06E-16 0.00 Uranium-235 2nd Qtr 2024 4.23E-17 4.60E-17 5.63E-17 4.61E-17 Result Below MDC Uranium-238 2nd Qtr 2024 2.60E-16 1.00E-16 4.56E-17 1.02E-16 0.00 7/2/2024 4/2/24 - 7/2/24 0.01%

0.01%

0.01%

0.00%

1.16E+06 1.28E+06 1.42E+06 0.01%

4/2/2024 1/5/24 - 4/2/24

% of Table 2 of Appendix B to 10 CFR 20 Values 7/2/2024 0.01%

Result Below MDC 0.02%

4/2/24 - 7/2/24 4/2/2024 1.49E+06 0.01%

1/5/24 - 4/2/24 0.02%

0.01%

Result Below MDC Sample ID: 1001-562-1MA1 Seperations Building Module - 1001 (SBM 1001) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Sample ID: 1001-562-1MA2 Notes: None

TABLE 1-3 Separations Building Module-1003 (SBM 1003): Pumped Extract Exhaust Gaseous Effluent Vent System, 1003-562-1MA1 &

1003-562-1MA2 Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 URENCO USA Lea County, New Mexico Sample ID (Functional Loc. / On Date Sample Date (Off Date/Time)

Sample Period Analyte Gross Result (Ci/ml)

MDA (Ci/ml)

@ 95 CL Instrument Unc (Ci/ml)

Total Vent System Flow (m3)

Quantity Released (Ci)

% of Table 2 of Appendix B to 10 CFR 20 Values 10035621MA1 010524 02/05/2024 1450 01/05/24 - 02/05/24 3.50E-17 1.46E-16 3.19E-08 4.55E+05

<MDA

<MDA 10035621MA1 020524 03/06/2024 1454 02/05/24 - 03/06/24 5.45E-17 1.52E-16 3.90E-08 4.47E+05

<MDA

<MDA 10035621MA1 030624 04/02/2024 1039 03/06/24 - 04/02/24 2.05E-17 1.71E-16 2.25E-08 4.02E+05

<MDA

<MDA 10035621MA1 040224 05/03/2024 1022 04/02/24 - 05/03/24 3.47E-17 1.45E-16 3.19E-08 4.58E+05

<MDA

<MDA 10035621MA1 050324 06/05/2024 1505 05/03/24 - 06/05/24 1.67E-17 1.39E-16 2.25E-08 4.96E+05

<MDA

<MDA 10035621MA1 060524 07/02/2024 1252 06/05/24 - 07/02/24 0.00E+00 1.74E-16 0.00E+00 4.15E+05

<MDA

<MDA 10035621MA1 010524 02/05/2024 1450 01/05/24 - 02/05/24 4.64E-16 3.40E-15 1.49E-07 4.55E+05

<MDA

<MDA 10035621MA1 020524 03/06/2024 1454 02/05/24 - 03/06/24 6.90E-16 3.53E-15 1.62E-07 4.47E+05

<MDA

<MDA 10035621MA1 030624 04/02/2024 1039 03/06/24 - 04/02/24 5.53E-16 3.98E-15 1.44E-07 4.02E+05

<MDA

<MDA 10035621MA1 040224 05/03/2024 1022 04/02/24 - 05/03/24 3.98E-16 3.37E-15 1.35E-07 4.58E+05

<MDA

<MDA 10035621MA1 050324 06/05/2024 1505 05/03/24 - 06/05/24 5.01E-16 3.24E-15 1.49E-07 4.96E+05

<MDA

<MDA 10035621MA1 060524 07/02/2024 1252 06/05/24 - 07/02/24 6.26E-16 4.06E-15 1.49E-07 4.15E+05

<MDA

<MDA 10035621MA2 010524 02/05/2024 1454 01/05/24 - 02/05/24 1.60E-17 1.33E-16 2.25E-08 4.93E+05

<MDA

<MDA 10035621MA2 020524 03/06/2024 1459 02/05/24 - 03/06/24 3.32E-17 1.38E-16 3.19E-08 4.82E+05

<MDA

<MDA 10035621MA2 030624 04/02/2024 1054 03/06/24 - 04/02/24 0.00E+00 1.52E-16 0.00E+00 4.34E+05

<MDA

<MDA 10035621MA2 040224 05/03/2024 1032 04/02/24 - 05/03/24 4.45E-17 1.24E-16 3.90E-08 5.01E+05

<MDA

<MDA 10035621MA2 050324 06/05/2024 1510 05/03/24 - 06/05/24 0.00E+00 1.23E-16 0.00E+00 5.46E+05

<MDA

<MDA 10035621MA2 060524 07/02/2024 1257 06/05/24 - 07/02/24 5.01E-17 1.39E-16 3.90E-08 4.50E+05

<MDA

<MDA 10035621MA2 010524 02/05/2024 1454 01/05/24 - 02/05/24 3.52E-16 3.11E-15 1.35E-07 4.93E+05

<MDA

<MDA 10035621MA2 020524 03/06/2024 1459 02/05/24 - 03/06/24 4.31E-16 3.22E-15 1.44E-07 4.82E+05

<MDA

<MDA 10035621MA2 030624 04/02/2024 1054 03/06/24 - 04/02/24 4.90E-16 3.53E-15 1.44E-07 4.34E+05

<MDA

<MDA 10035621MA2 040224 05/03/2024 1032 04/02/24 - 05/03/24 3.56E-16 2.88E-15 1.40E-07 5.01E+05

<MDA

<MDA 10035621MA2 050324 06/05/2024 1510 05/03/24 - 06/05/24 5.01E-16 2.86E-15 1.58E-07 5.46E+05

<MDA

<MDA 10035621MA2 060524 07/02/2024 1257 06/05/24 - 07/02/24 4.41E-16 3.24E-15 1.58E-07 4.50E+05

<MDA

<MDA 1003-562-1MA2 1003-562-1MA1 Gross Beta Seperations Building Module -1003 (SBM 1003) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Gross Alpha Gross Beta Gross Alpha Radionuclide Sample Date (Off Date)

Sample Period Result (Ci/ml)

Uncertainty (2 sigma)

(Ci/ml)

Uncertainty (1 sigma)

(Ci/ml)

MDC (Ci/ml)

Total Flow (m3)

Quantity Released (Ci)

Uranium-234 1st Qtr 2024 3.22E-16 9.96E-17 1.02E-16 3.10E-17 0.00 Uranium-235 1st Qtr 2024 9.06E-18 2.51E-17 2.51E-17 5.43E-17 Result Below MDC Uranium-238 1st Qtr 2024 2.99E-16 9.57E-17 9.81E-17 3.10E-17 0.00 Uranium-234 2nd Qtr 2024 3.54E-16 1.15E-16 6.52E-17 1.18E-16 0.00 Uranium-235 2nd Qtr 2024 4.82E-17 4.61E-17 5.04E-17 4.62E-17 0.00 Uranium-238 2nd Qtr 2024 2.11E-16 8.65E-17 5.13E-17 8.78E-17 0.00 Uranium-234 1st Qtr 2024 1.69E-16 6.90E-17 7.00E-17 3.33E-17 0.00 Uranium-235 1st Qtr 2024 6.94E-18 1.69E-17 1.69E-17 3.57E-17 Result Below MDC Uranium-238 1st Qtr 2024 1.73E-16 7.03E-17 7.14E-17 3.93E-17 0.00 Uranium-234 2nd Qtr 2024 1.36E-16 6.13E-17 2.89E-17 6.20E-17 0.00 Uranium-235 2nd Qtr 2024 3.22E-17 3.33E-17 3.56E-17 3.34E-17 Result Below MDC Uranium-238 2nd Qtr 2024 2.25E-16 8.07E-17 4.09E-17 8.23E-17 0.00 0.01%

% of Table 2 of Appendix B to 10 CFR 20 Values 4/2/2024 1.30E+06 1.37E+06 1003-562-1MA2 0.01%

0.01%

Seperations Building Module -1003 (SBM 1003) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 4/2/2024 1003-562-1MA1 4/2/24 - 7/2/24 0.01%

0.00%

Result Below MDC 0.00%

1/5/24 - 4/2/24 1.50E+06 0.01%

0.01%

7/2/2024 1.41E+06 Result Below MDC Result Below MDC 7/2/2024 1/5/24 - 4/2/24 4/2/24 - 7/2/24 0.01%

Notes: None

TABLE 1-4 Separations Building Module-1005 (SBM 1005): Pumped Extract Exhaust Gaseous Effluent Vent System, 1005-562-1MA1 &

1005-562-1MA2 Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 URENCO USA Lea County, New Mexico Sample ID (Functional Loc. / On Date Sample Date (Off Date/Time)

Sample Period Analyte Gross Result (Ci/ml)

MDA (Ci/ml)

@ 95 CL Instrument Unc (Ci/ml)

Total Vent System Flow (m3)

Quantity Released (Ci)

% of Table 2 of Appendix B to 10 CFR 20 Values 10055621MA1 010524 02/05/2024 1458 01/05/24 - 02/05/24 1.96E-17 1.63E-16 2.25E-08 8.12E+05

<MDA

<MDA 10055621MA1 020524 03/06/2024 1508 02/05/24 - 03/06/24

-2.09E-17 1.68E-16 0.00E+00 7.90E+05

<MDA

<MDA 10055621MA1 030624 04/02/2024 1108 03/06/24 - 04/02/24 4.53E-17 1.89E-16 3.19E-08 7.07E+05

<MDA

<MDA 10055621MA1 040224 05/03/2024 1042 04/02/24 - 05/03/24 7.77E-17 1.62E-16 4.51E-08 7.96E+05

<MDA

<MDA 10055621MA1 050324 06/05/2024 1515 05/03/24 - 06/05/24 0.00E+00 1.53E-16 0.00E+00 8.71E+05

<MDA

<MDA 10055621MA1 060524 07/02/2024 1305 06/05/24 - 07/02/24 4.42E-17 1.84E-16 3.19E-08 7.15E+05

<MDA

<MDA 10055621MA1 010524 02/05/2024 1458 01/05/24 - 02/05/24 3.33E-16 3.81E-15 1.26E-07 8.12E+05

<MDA

<MDA 10055621MA1 020524 03/06/2024 1508 02/05/24 - 03/06/24 5.39E-16 3.91E-15 1.62E-07 7.90E+05

<MDA

<MDA 10055621MA1 030624 04/02/2024 1108 03/06/24 - 04/02/24 5.44E-16 4.40E-15 1.40E-07 7.07E+05

<MDA

<MDA 10055621MA1 040224 05/03/2024 1042 04/02/24 - 05/03/24 4.08E-16 3.78E-15 1.35E-07 7.96E+05

<MDA

<MDA 10055621MA1 050324 06/05/2024 1515 05/03/24 - 06/05/24 3.04E-16 3.56E-15 1.31E-07 8.71E+05

<MDA

<MDA 10055621MA1 060524 07/02/2024 1305 06/05/24 - 07/02/24 8.17E-16 4.29E-15 1.62E-07 7.15E+05

<MDA

<MDA 10055621MA2 010524 02/05/2024 1459 01/05/24 - 02/05/24

-2.07E-17 1.66E-16 0.00E+00 8.44E+05

<MDA

<MDA 10055621MA2 020524 03/06/2024 1509 02/05/24 - 03/06/24 0.00E+00 1.72E-16 0.00E+00 8.17E+05

<MDA

<MDA 10055621MA2 030624 04/02/2024 1114 03/06/24 - 04/02/24 2.36E-17 1.97E-16 2.25E-08 7.29E+05

<MDA

<MDA 10055621MA2 040224 05/03/2024 1047 04/02/24 - 05/03/24 6.09E-17 1.69E-16 3.90E-08 8.14E+05

<MDA

<MDA 10055621MA2 050324 06/05/2024 1520 05/03/24 - 06/05/24 1.91E-17 1.59E-16 2.25E-08 9.05E+05

<MDA

<MDA 10055621MA2 060524 07/02/2024 1308 06/05/24 - 07/02/24 6.26E-17 1.74E-16 3.90E-08 7.45E+05

<MDA

<MDA 10055621MA2 010524 02/05/2024 1459 01/05/24 - 02/05/24 5.03E-16 3.88E-15 1.53E-07 8.44E+05

<MDA

<MDA 10055621MA2 020524 03/06/2024 1509 02/05/24 - 03/06/24 5.71E-16 4.02E-15 1.53E-07 8.17E+05

<MDA

<MDA 10055621MA2 030624 04/02/2024 1114 03/06/24 - 04/02/24 5.90E-16 4.59E-15 1.40E-07 7.29E+05

<MDA

<MDA 10055621MA2 040224 05/03/2024 1047 04/02/24 - 05/03/24 5.28E-16 3.95E-15 1.44E-07 8.14E+05

<MDA

<MDA 10055621MA2 050324 06/05/2024 1520 05/03/24 - 06/05/24 7.44E-16 3.71E-15 1.62E-07 9.05E+05

<MDA

<MDA 10055621MA2 060524 07/02/2024 1308 06/05/24 - 07/02/24 5.01E-16 4.06E-15 1.40E-07 7.45E+05

<MDA

<MDA Seperations Building Module -1005 (SBM 1005) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 1005-562-1MA1 Gross Alpha Gross Beta Gross Alpha Gross Beta 1005-562-1MA2 Radionuclide Sample Date (Off Date)

Sample Period Result (Ci/ml)

Uncertainty (2 sigma)

(Ci/ml)

Uncertainty (1 sigma)

(Ci/ml)

MDC (Ci/ml)

Total Flow (m3)

Quantity Released (Ci)

Uranium-234 1st Qtr 2024 4.59E-16 1.35E-16 1.39E-16 4.48E-17 0.00 Uranium-235 1st Qtr 2024 4.56E-17 5.01E-17 5.02E-17 6.84E-17 Result Below MDC Uranium-238 1st Qtr 2024 4.23E-16 1.29E-16 1.32E-16 3.89E-17 0.00 Uranium-234 2nd Qtr 2024 3.84E-16 1.16E-16 3.99E-17 1.19E-16 9.15E-10 Uranium-235 2nd Qtr 2024 3.70E-17 4.03E-17 4.93E-17 4.04E-17 Result Below MDC Uranium-238 2nd Qtr 2024 2.38E-16 9.08E-17 4.93E-17 9.24E-17 0.00E+00 Uranium-234 1st Qtr 2024 3.63E-16 1.15E-16 1.18E-16 4.93E-17 0.00 Uranium-235 1st Qtr 2024 1.25E-16 7.29E-17 7.34E-17 4.47E-17 0.00 Uranium-238 1st Qtr 2024 3.16E-16 1.06E-16 1.08E-16 3.62E-17 0.00 Uranium-234 2nd Qtr 2024 4.00E-16 1.18E-16 3.99E-17 1.22E-16 9.86E-10 Uranium-235 2nd Qtr 2024 2.03E-17 3.45E-17 6.08E-17 3.45E-17 Result Below MDC Uranium-238 2nd Qtr 2024 2.95E-16 1.01E-16 4.92E-17 1.04E-16 0.00E+00 0.01%

0.010%

Result Below MDC Result Below MDC 0.01%

2.31E+06 2.38E+06 2.39E+06 2.46E+06 1/5/24 - 4/2/24 0.02%

4/2/24 - 7/2/24 4/2/2024 1005-562-1MA1 7/2/2024 0.013%

1/5/24 - 4/2/24 4/2/24 - 7/2/24 Seperations Building Module -1005 (SBM 1005) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 7/2/2024 0.008%

0.013%

% of Table 2 of Appendix B to 10 CFR 20 Values 4/2/2024 Result Below MDC 1005-562-1MA2 0.00%

0.01%

Notes: None

TABLE 1-5 Cylinder Receipt and Dispatch Building-1100 (CRDB 1100): Local Extract Exhaust Gaseous Effluent Vent System, 1100-562-1MA1 &

1100-562-1MA2, Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 URENCO USA Lea County, New Mexico Sample ID (Functional Loc. / On Date Sample Date (Off Date/Time)

Sample Period Analyte Gross Result (Ci/ml)

MDA (Ci/ml)

@ 95 CL Instrument Unc (Ci/ml)

Total Vent System Flow (m3)

Quantity Released (Ci)

% of Table 2 of Appendix B to 10 CFR 20 Values 11005621MA1 010524 02/05/2024 1503 01/05/24 - 02/05/24 1.67E-17 1.39E-16 2.25E-08 7.66E+05

<MDA

<MDA 11005621MA1 020524 03/06/2024 1422 02/05/24 - 03/06/24 1.70E-17 1.42E-16 2.25E-08 7.23E+05

<MDA

<MDA 11005621MA1 030624 04/02/2024 1121 03/06/24 - 04/02/24 3.85E-17 1.61E-16 3.19E-08 6.48E+05

<MDA

<MDA 11005621MA1 040224 05/03/2024 1110 04/02/24 - 05/03/24 6.67E-17 1.39E-16 4.51E-08 7.39E+05

<MDA

<MDA 11005621MA1 050324 06/05/2024 1457 05/03/24 - 06/05/24 0.00E+00 1.26E-16 0.00E+00 7.90E+05

<MDA

<MDA 11005621MA1 060524 07/02/2024 1237 06/05/24 - 07/02/24 1.79E-17 1.49E-16 2.25E-08 6.32E+05

<MDA

<MDA 11005621MA1 010524 02/05/2024 1503 01/05/24 - 02/05/24 3.50E-16 3.24E-15 1.35E-07 7.66E+05

<MDA

<MDA 11005621MA1 020524 03/06/2024 1422 02/05/24 - 03/06/24 3.45E-16 3.32E-15 1.44E-07 7.23E+05

<MDA

<MDA 11005621MA1 030624 04/02/2024 1121 03/06/24 - 04/02/24 4.43E-16 3.74E-15 1.35E-07 6.48E+05

<MDA

<MDA 11005621MA1 040224 05/03/2024 1110 04/02/24 - 05/03/24 3.67E-16 3.24E-15 1.35E-07 7.39E+05

<MDA

<MDA 11005621MA1 050324 06/05/2024 1457 05/03/24 - 06/05/24 4.38E-16 2.94E-15 1.49E-07 7.90E+05

<MDA

<MDA 11005621MA1 060524 07/02/2024 1237 06/05/24 - 07/02/24 4.29E-16 3.48E-15 1.40E-07 6.32E+05

<MDA

<MDA 11005621MA2 010524 02/05/2024 1505 01/05/24 - 02/05/24 0.00E+00 2.25E-16 0.00E+00 7.66E+05

<MDA

<MDA 11005621MA2 020524 03/06/2024 1426 02/05/24 - 03/06/24 2.83E-17 2.37E-16 2.25E-08 7.23E+05

<MDA

<MDA 11005621MA2 030624 04/02/2024 1128 03/06/24 - 04/02/24

-1.26E-18 2.76E-16 2.25E-08 6.56E+05

<MDA

<MDA 11005621MA2 040224 05/03/2024 1105 04/02/24 - 05/03/24 5.38E-17 2.24E-16 3.19E-08 7.39E+05

<MDA

<MDA 11005621MA2 050324 06/05/2024 1459 05/03/24 - 06/05/24 9.19E-17 1.53E-16 4.96E-08 6.96E+05

<MDA

<MDA 11005621MA2 060524 07/02/2024 1239 06/05/24 - 07/02/24 2.38E-17 2.06E-16 3.19E-08 4.31E+05

<MDA

<MDA 11005621MA2 010524 02/05/2024 1505 01/05/24 - 02/05/24 5.66E-16 5.25E-15 1.35E-07 7.66E+05

<MDA

<MDA 11005621MA2 020524 03/06/2024 1426 02/05/24 - 03/06/24 7.38E-16 5.52E-15 1.44E-07 7.23E+05

<MDA

<MDA 11005621MA2 030624 04/02/2024 1128 03/06/24 - 04/02/24 7.99E-16 6.42E-15 1.53E-07 6.56E+05

<MDA

<MDA 11005621MA2 040224 05/03/2024 1105 04/02/24 - 05/03/24 8.07E-16 5.23E-15 1.49E-07 7.39E+05

<MDA

<MDA 11005621MA2 050324 06/05/2024 1459 05/03/24 - 06/05/24 4.14E-16 3.56E-15 1.44E-07 6.96E+05

<MDA

<MDA 11005621MA2 060524 07/02/2024 1239 06/05/24 - 07/02/24 4.24E-16 4.80E-15 1.40E-07 4.31E+05

<MDA

<MDA Gross Alpha Gross Beta 1100-562-1MA2 Gross Alpha Cylinder Receipt and Dispatch Building -1100 (CRDB 1100) Exhaust (FHGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 1100-562-1MA1 Gross Beta Radionuclide Sample Date (Off Date)

Sample Period Result (Ci/ml)

Uncertainty (2 sigma)

(Ci/ml)

Uncertainty (1 sigma)

(Ci/ml)

MDC (Ci/ml)

Total Flow (m3)

Quantity Released (Ci)

Uranium-234 1st Qtr 2024 2.07E-16 8.41E-17 8.54E-17 4.69E-17 0.00 Uranium-235 1st Qtr 2024 7.88E-17 5.65E-17 5.67E-17 4.25E-17 0.00 Uranium-238 1st Qtr 2024 1.71E-16 7.69E-17 7.79E-17 5.23E-17 0.00 Uranium-234 2nd Qtr 2024 2.91E-16 9.78E-17 4.14E-17 1.00E-16 0.00 Uranium-235 2nd Qtr 2024 8.45E-17 5.70E-17 4.04E-17 5.73E-17 0.00 Uranium-238 2nd Qtr 2024 3.61E-16 1.10E-16 3.76E-17 1.13E-16 0.00 Uranium-234 1st Qtr 2024 3.86E-16 1.44E-16 1.46E-16 5.47E-17 0.00 Uranium-235 1st Qtr 2024 9.59E-17 8.34E-17 8.36E-17 9.58E-17 0.00 Uranium-238 1st Qtr 2024 4.89E-16 1.63E-16 1.66E-16 5.46E-17 0.00 Uranium-234 2nd Qtr 2024 6.04E-16 1.51E-16 5.10E-17 1.57E-16 0.00 Uranium-235 2nd Qtr 2024 1.15E-16 7.19E-17 6.29E-17 7.24E-17 0.00 Uranium-238 2nd Qtr 2024 4.14E-16 1.22E-16 3.58E-17 1.25E-16 0.00 Container Receipt and Dispatch Building -1100 (CRDB 1100) Fume Hood Exhaust (FHGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 0.01%

0.01%

2.14E+06 0.00%

4/2/2024 1100-562-1MA1 1100-562-1MA2 0.01%

2.15E+06 0.01%

7/2/2024 4/2/24 - 7/2/24 1/5/24 - 4/2/24 0.01%

1.87E+06 0.02%

0.00%

0.02%

% of Table 2 of Appendix B to 10 CFR 20 Values 2.16E+06 4/2/24 - 7/2/24 0.00%

7/2/2024 0.00%

0.01%

4/2/2024 1/5/24 - 4/2/24 Notes: 1100-562-1MA2 totalized stack volume collected from redundant monitor 1100-562-1MA1 for filters 010524, 020524, 030624, and 040224 due to stack probe issue.

TABLE 1-6 Cylinder Receipt and Dispatch Building-1100 (CRDB 1100): Fume Hood Exhaust Gaseous Effluent Vent System, 1100-562-2MA1 &

1100-562-2MA2, Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 URENCO USA Lea County, New Mexico Sample ID (Functional Loc. / On Date Sample Date (Off Date/Time)

Sample Period Analyte Gross Result (Ci/ml)

MDA (Ci/ml)

@ 95 CL Instrument Unc (Ci/ml)

Total Vent System Flow (m3)

Quantity Released (Ci)

% of Table 2 of Appendix B to 10 CFR 20 Values 11005622MA1 010524 02/05/2024 1508 01/05/24 - 02/05/24 3.44E-17 1.44E-16 3.19E-08 2.92E+07

<MDA

<MDA 11005622MA1 020524 03/06/2024 1434 02/05/24 - 03/06/24 3.50E-17 1.46E-16 3.19E-08 2.84E+07

<MDA

<MDA 11005622MA1 030624 04/02/2024 1133 03/06/24 - 04/02/24 2.14E-17 1.79E-16 2.25E-08 2.58E+07

<MDA

<MDA 11005622MA1 040224 05/03/2024 1100 04/02/24 - 05/03/24 1.88E-17 1.57E-16 2.25E-08 2.97E+07

<MDA

<MDA 11005622MA1 050324 06/05/2024 1449 05/03/24 - 06/05/24 5.78E-17 1.61E-16 3.90E-08 3.16E+07

<MDA

<MDA 11005622MA1 060524 07/02/2024 1243 06/05/24 - 07/02/24 1.53E-17 2.91E-16 2.25E-08 2.73E+07

<MDA

<MDA 11005622MA1 010524 02/05/2024 1508 01/05/24 - 02/05/24 4.30E-16 3.34E-15 1.40E-07 2.92E+07

<MDA

<MDA 11005622MA1 020524 03/06/2024 1434 02/05/24 - 03/06/24 6.81E-16 3.40E-15 1.62E-07 2.84E+07

<MDA

<MDA 11005622MA1 030624 04/02/2024 1133 03/06/24 - 04/02/24 4.50E-16 4.17E-15 1.35E-07 2.58E+07

<MDA

<MDA 11005622MA1 040224 05/03/2024 1100 04/02/24 - 05/03/24 5.82E-16 3.65E-15 1.53E-07 2.97E+07

<MDA

<MDA 11005622MA1 050324 06/05/2024 1449 05/03/24 - 06/05/24 4.24E-16 3.74E-15 1.35E-07 3.16E+07

<MDA

<MDA 11005622MA1 060524 07/02/2024 1243 06/05/24 - 07/02/24 9.78E-16 6.79E-15 1.58E-07 2.73E+07

<MDA

<MDA 11005622MA2 010524 02/05/2024 1509 01/05/24 - 02/05/24 2.68E-17 2.24E-16 2.25E-08 3.11E+07

<MDA

<MDA 11005622MA2 020524 03/06/2024 1438 02/05/24 - 03/06/24 1.24E-16 2.59E-16 4.51E-08 3.05E+07

<MDA

<MDA 11005622MA2 030624 04/02/2024 1136 03/06/24 - 04/02/24 6.98E-17 2.91E-16 3.19E-08 2.79E+07

<MDA

<MDA 11005622MA2 040224 05/03/2024 1055 04/02/24 - 05/03/24 6.06E-17 2.53E-16 3.19E-08 3.19E+07

<MDA

<MDA 11005622MA2 050324 06/05/2024 1453 05/03/24 - 06/05/24 5.75E-17 2.39E-16 3.19E-08 3.43E+07

<MDA

<MDA 11005622MA2 060524 07/02/2024 1245 06/05/24 - 07/02/24 3.49E-17 2.91E-16 2.25E-08 2.73E+07

<MDA

<MDA 11005622MA2 010524 02/05/2024 1509 01/05/24 - 02/05/24 9.12E-16 5.21E-15 1.58E-07 3.11E+07

<MDA

<MDA 11005622MA2 020524 03/06/2024 1438 02/05/24 - 03/06/24 8.56E-16 6.02E-15 1.53E-07 3.05E+07

<MDA

<MDA 11005622MA2 030624 04/02/2024 1136 03/06/24 - 04/02/24 7.68E-16 6.78E-15 1.35E-07 2.79E+07

<MDA

<MDA 11005622MA2 040224 05/03/2024 1055 04/02/24 - 05/03/24 1.06E-15 5.89E-15 1.58E-07 3.19E+07

<MDA

<MDA 11005622MA2 050324 06/05/2024 1453 05/03/24 - 06/05/24 3.73E-16 5.58E-15 1.17E-07 3.43E+07

<MDA

<MDA 11005622MA2 060524 07/02/2024 1245 06/05/24 - 07/02/24 4.88E-16 6.79E-15 1.22E-07 2.73E+07

<MDA

<MDA Gross Beta 1100-562-2MA2 1100-562-2MA1 Gross Alpha Gross Beta Gross Alpha Cylinder Receipt and Dispatch Building -1100 (CRDB 1100) Fume Hood Exhaust (LXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Radionuclide Sample Date (Off Date)

Sample Period Result (Ci/ml)

Uncertainty (2 sigma)

(Ci/ml)

Uncertainty (1 sigma)

(Ci/ml)

MDC (Ci/ml)

Total Flow (m3)

Quantity Released (Ci)

Uranium-234 1st Qtr 2024 4.80E-16 1.33E-16 1.38E-16 5.13E-17 4.00E-08 Uranium-235 1st Qtr 2024 6.04E-17 5.02E-17 5.04E-17 4.38E-17 0.00 Uranium-238 1st Qtr 2024 2.24E-16 8.80E-17 8.94E-17 4.07E-17 0.00E+00 Uranium-234 2nd Qtr 2024 2.10E-16 8.70E-17 3.73E-17 8.83E-17 0.00 Uranium-235 2nd Qtr 2024 5.45E-17 5.25E-17 6.53E-17 5.27E-17 0.00 Uranium-238 2nd Qtr 2024 1.92E-16 8.30E-17 3.72E-17 8.41E-17 0.00 Uranium-234 1st Qtr 2024 6.50E-16 1.99E-16 2.04E-16 6.90E-17 5.81E-08 Uranium-235 1st Qtr 2024 1.58E-16 1.10E-16 1.10E-16 1.05E-16 0.00 Uranium-238 1st Qtr 2024 3.67E-16 1.46E-16 1.48E-16 6.00E-17 0.00E+00 Uranium-234 2nd Qtr 2024 6.14E-16 1.85E-16 6.38E-17 1.91E-16 0.00 Uranium-235 2nd Qtr 2024 1.27E-16 9.09E-17 6.85E-17 9.13E-17 0.00 Uranium-238 2nd Qtr 2024 4.89E-16 1.65E-16 7.53E-17 1.69E-16 0.00 0.016%

9.35E+07 0.012%

0.022%

7/2/2024 1/5/24 - 4/2/24 8.34E+07 0.007%

4/2/24 - 7/2/24 0.020%

% of Table 2 of Appendix B to 10 CFR 20 Values 0.006%

4/2/24 - 7/2/24 1100-562-2MA1 1/5/24 - 4/2/24 0.002%

0.016%

0.004%

8.95E+07 0.005%

8.87E+07 0.007%

4/2/2024 7/2/2024 4/2/2024 1100-562-2MA2 Container Receipt and Dispatch Building -1100 (CRDB 1100) Local Extract Exhaust (LXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 0.002%

Notes: None

TABLE 1-7 Centrifuge Test and Post Mortem Building-1300 (CTPMB 1300): Local Extract Exhaust Gaseous Effluent Vent System, 1300-562-1MA1 Gross Alpha & Beta, and Radionuclides: Quarters 1 & 2, 2024 URENCO USA Lea County, New Mexico Sample ID (Functional Loc. / On Date Sample Date (Off Date/Time)

Sample Period Analyte Gross Result (Ci/ml)

MDA (Ci/ml)

@ 95 CL Instrument Unc (Ci/ml)

Total Vent System Flow (m3)

Quantity Released (Ci)

% of Table 2 of Appendix B to 10 CFR 20 Values 13005621MA1 010524 02/05/2024 1115 11/16/23 - 02/06/24 7.48E-18 6.48E-17 3.19E-08 1.85E+07

<MDA

<MDA 13005621MA1 020524 03/06/2024 1018 02/06/24 - 03/06/24 1.84E-17 1.54E-16 2.25E-08 1.23E+07

<MDA

<MDA 13005621MA1 030624 04/02/2024 0750 03/06/24 - 04/03/24 3.33E-17 1.93E-16 3.19E-08 9.29E+06

<MDA

<MDA 13005621MA1 040224 05/03/2024 0905 04/03/24 - 05/02/24 2.01E-17 1.68E-16 2.25E-08 1.07E+07

<MDA

<MDA 13005621MA1 050324 06/05/2024 1313 05/02/24 - 06/05/24 2.70E-17 1.13E-16 3.19E-08 1.45E+07

<MDA

<MDA 13005621MA1 060524 07/02/2024 0923 06/05/24 - 07/03/24 3.61E-17 1.50E-16 3.19E-08 1.17E+07

<MDA

<MDA 13005621MA1 010524 02/05/2024 1115 11/16/23 - 02/06/24 2.19E-16 1.51E-15 1.58E-07 1.85E+07

<MDA

<MDA 13005621MA1 020524 03/06/2024 1018 02/06/24 - 03/06/24 4.61E-16 3.59E-15 1.40E-07 1.23E+07

<MDA

<MDA 13005621MA1 030624 04/02/2024 0750 03/06/24 - 04/03/24 6.26E-16 4.51E-15 1.53E-07 9.29E+06

<MDA

<MDA 13005621MA1 040224 05/03/2024 0905 04/03/24 - 05/02/24 4.83E-16 3.91E-15 1.40E-07 1.07E+07

<MDA

<MDA 13005621MA1 050324 06/05/2024 1313 05/02/24 - 06/05/24 1.49E-16 2.62E-15 1.13E-07 1.45E+07

<MDA

<MDA 13005621MA1 060524 07/02/2024 0923 06/05/24 - 07/03/24 6.30E-16 3.50E-15 1.58E-07 1.17E+07

<MDA

<MDA Gross Alpha Gross Beta Centrifuge Test and Post Mortem Building -1300 (CTPMF 1300) Local Extract Exhaust Gaseous Effluent Vent System-Gross Alpha & Beta 1300-562-1MA1 Radionuclide Sample Date (Off Date)

Sample Period Result (Ci/ml)

Uncertainty (2 sigma)

(Ci/ml)

Uncertainty (1 sigma)

(Ci/ml)

MDC (Ci/ml)

Total Flow (m3)

Quantity Released (Ci)

Uranium-234 1st Qtr 2024 2.32E-16 6.87E-17 7.06E-17 3.85E-17 9.30E-09 Uranium-235 1st Qtr 2024 5.68E-17 3.94E-17 3.96E-17 4.39E-17 0.00 Uranium-238 1st Qtr 2024 1.40E-16 5.33E-17 5.42E-17 3.84E-17 0.00E+00 Uranium-234 2nd Qtr 2024 2.35E-16 9.27E-17 4.28E-17 9.42E-17 0.00 Uranium-235 2nd Qtr 2024 8.70E-17 6.45E-17 6.52E-17 6.48E-17 0.00 Uranium-238 2nd Qtr 2024 2.10E-16 8.69E-17 3.71E-17 8.82E-17 0.00 7/3/2024 4/3/24 - 7/3/24 3.69E+07 0.008%

0.003%

0.007%

Centrifuge Test and Post Mortem Building -1300 (CTPMF 1300) Local Extract Exhaust Gaseous Effluent Vent System-Gross Alpha & Beta

% of Table 2 of Appendix B to 10 CFR 20 Values 1300-562-1MA1 4/3/2024 11/16/23 - 4/3/24 4.01E+07 0.008%

0.002%

0.005%

Notes: Initial effluent filter was installed in November 2023 upon system start up and was removed in February 2024, upon which subsequent filters were collected monthly.

1.

Ci = Curies

2.

µCi/ml = micro-Curies per milliliter.

3.

m³ = cubic meters.

4.

MDA = minimum detectable activity.

5.

MDC= minimum detectable concentration.

6.

Quantity released is calculated if the result Equals or Exceeds MDA or MDC.

7.

Radionuclides analyzed using Procedure EPA 908.0 Modified by Eberline Analytical Corp of Oak Ridge, TN.

8.

Gross alpha and beta analyzed by URENCO USA per procedure EN-3-3030-01.