ML24060A168

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Louisiana Energy Services, LLC - Semi-Annual Radiological Effluent Release Report for July 1, 2023 Through December 31, 2023
ML24060A168
Person / Time
Site: 07003103
Issue date: 02/29/2024
From: Schwarz C
Louisiana Energy Services, URENCO USA
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards
References
LES-24-028-NRC
Download: ML24060A168 (1)


Text

LES 028-NRC

2/29/2024

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 f or July 1, 2023 through December 31, 2023

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 John Pfabe, Senior Licensing Specialist at 575.394. 6061.

Respectfully,

Chris Schwarz Licensing and ECP Manager

Enclosure:

1. Semi-Annual Radiological Effluent Release Report for July 1, 2023 through December 31, 2023

CC:

USNRC Region II RidsRgn2MailCenter@nrc.gov

Jonathan Rowley, Senior Project Manager - UUSA U.S. Nuclear Regulatory Commission Jonathan.Rowley@NRC.gov

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 LES-24-028-NRC

ENCLOSURE 1

Semi-Annual Radiological Effluent Release Report for July 1, 202 3 through December 31, 2023

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.

3 URENCO USA: Report of Radioac tivity in Effluents: Liquid & Air: July 2023 - December 2023

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. N o 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 below the Minimum Detectable Concentration (MDC) and therefore below the values listed in 10 CFR 20, Appendix B, Table 3, Rel eases to Sewers ( Table 1-1).

In gaseous effluent, the gross uranium activ ity 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 Regulator y Guide 4.20 Constraint on Releases of Airborne Radioactive Materials to the Environment for Licensees other than Power Reactors dated December 1996.

LIST OF TABLES

Table No. Title

1-1 Lift Station 1 W astewater Effluent - Radionuclides Quarters 3 & 4, 2023

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 3 & 4, 2023

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 3 & 4, 2023

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: 3 & 4, 2023

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 3 & 4, 2023

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 3 & 4, 2023

TABLE 1-1 Lift Station 1 Wastewater Effluent - Radionuclides, Quarters 3 & 4, 2023 URENCO USA Lea County, New Mexico

URENCO USA Lea Count y New Mex ic o Lift Station 1 W asteW ater Effluent-Radionuclides Sam ple Total Cing Qua ntity % of Table 3 of Appendix Radionuclide Date Sam ple Ti m e Res ults Uty Total cw* Released B to 10 CFR 20 Values -

( Date/Time) Period (days ) (Ci/m l) (Ci/m l) (gallons /day) (Ci) Monthly Average Releas e to Sewers 1Lift Station 1 - July - December 2023 Ur anium - 233/234 0.00E+00 0.00E+00 13,00012/21/2023 7/01/23 - Res ult Below LLDRes ult Below LLD Ur anium - 235/236 0.00E+00 0.00E+00 13,000102312/31/23183 Res ult Below LLDRes ult Below LLD Ur anium - 238 0.00E+00 0.00E+00 13,000 Res ult Below LLDRes ult Below LLD Lift Station 1 Duplicate - July - December 2023 Ur anium - 233/234 0.00E+00 0.00E+00 13,00012/21/2023 7/01/23 - Res ult Below LLDRes ult Below LLD Ur anium - 235/236 0.00E+00 0.00E+00 13,000102312/31/23183 Res ult Below LLDRes ult Below LLD Ur anium - 238 0.00E+00 0.00E+00 13,000 Res ult Below LLDRes ult Below LLD Comme nts A ll s ample r es ults r etur ned Not Detec table

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/m L.

TABLE 1-2 Separations Building Module-100 1 (SBM 1001): Pumped Extract Exhaust Gaseous Effluent Vent System, 1001-562-1MA1 & 1001-562-1MA2 Gross Alpha & Beta, and Rad ionuclides: Quarters 3 & 4, 2023 URENCO USA Lea County, New Mexico.

Seperations Building Module - 1001 (SBM 1001) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Total Vent Qua ntity % of Table 2 Sam ple ID Sam ple Date Sam ple Period Analyte Gros s Res ult MD A (C i /m l ) Ins trum ent Sys tem Flow Released of Appendix B (Func tional Loc. / On Date (Of f Date/Time) (Ci/m l) @ 95 CL U n c (C i /m l ) (m 3) (Ci) to 10 CFR 20 Values 1001-562-1MA1 10015621MA 1 070623 09/01/2023 1017 07/06/23 - 09/01/23 7.45E-17 2.69E-16 9.91E-08 6.91E+05 < MDA < MDA 10015621MA 1 090123 10/09/223 1038 09/01/23 - 10/09/23 5.16E-17 3.86E-16 6.76E-08 5.25E+05 < MDA < MDAG r o ss 10015621MA 1 100923 11/06/2023 1050 10/09/23 - 11/06/23 0.00E+00 5.74E-16 0.00E+00 3.88E+05 < MDA < MDAAlpha 10015621MA 1 110623 12/11/2023 0959 11/06/23 - 12/11/23 1.25E-16 4.52E-16 9.91E-08 4.85E+05 < MDA < MDA 10015621MA 1 121123 01/05/2024 1058 12/11/23 - 01/05/24 0.00E+00 6.26E-16 0.00E+00 3.46E+05 < MDA < MDA 10015621MA 1 070623 09/01/2023 1017 07/06/23 - 09/01/23 3.10E-15 2.56E-15 1.73E-08 6.91E+05 2.14E-09 0.103%

10015621MA 1 090123 10/09/223 1038 09/01/23 - 10/09/23 4.02E-15 3.68E-15 1.74E-06 5.25E+05 2.11E-09 0.134%G r o ss 10015621MA 1 100923 11/06/2023 1050 10/09/23 - 11/06/23 3.70E-15 5.46E-15 1.55E-06 3.88E+05 < MDA < MDABe ta 10015621MA 1 110623 12/11/2023 0959 11/06/23 - 12/11/23 5.74E-15 4.30E-15 1.82E-06 4.85E+05 2.78E-09 0.191%

10015621MA 1 121123 01/05/2024 1058 12/11/23 - 01/05/24 7.39E-15 5.97E-15 1.79E-06 3.46E+05 2.55E-09 0.246%

1001-562-1MA2 10015621MA 2 070623 09/01/2023 1022 07/06/23 - 09/01/23 1.35E-16 1.01E-15 6.76E-081.63E+05 < MDA < MDA 10015621MA 2 090123 10/09/2023 1040 09/01/23 - 10/09/23 -7.60E-17 3.29E-16 4.16E-10G r o ss 6.21E+05 < MDA < MDA 10015621MA 2 100923 11/06/2023 1102 10/09/23 - 11/06/23 6.69E-17 5.01E-16 6.76E-08 4.55E+05 < MDA < MDAAlpha 10015621MA 2 110623 12/11/2023 1005 11/06/23 - 12/11/23 0.00E+00 4.02E-16 0.00E+00 5.73E+05 < MDA < MDA 10015621MA 2 121123 01/05/2024 1110 12/11/23 - 01/05/24 6.91E-17 5.17E-16 6.76E-08 4.10E+05 < MDA < MDA 10015621MA 2 070623 09/01/2023 1022 07/06/23 - 09/01/23 7.45E-15 9.62E-15 1.58E-061.63E+05 < MDA < MDA 10015621MA 2 090123 10/09/2023 1040 09/01/23 - 10/09/23 2.01E-15 3.13E-15 1.86E-06G r o ss 6.21E+05 < MDA < MDA 10015621MA 2 100923 11/06/2023 1102 10/09/23 - 11/06/23 3.92E-15 4.77E-15 1.59E-06 4.55E+05 < MDA < MDABe ta 10015621MA 2 110623 12/11/2023 1005 11/06/23 - 12/11/23 2.59E-15 3.83E-15 1.55E-06 5.73E+05 < MDA < MDA 10015621MA 2 121123 01/05/2024 1110 12/11/23 - 01/05/24 5.00E-15 4.93E-15 1.66E-06 4.10E+05 2.05E-09 0.167%

Seperations Building Module - 1001 (SBM 1001) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Sam ple Date Res ult Uncertainty Uncertainty MDC Total Qua ntity % of Table 2 of Radionuclide ( Of f Date) Sam ple Period (Ci/m l) (2 TPU) (1 TPU) (C i /m l ) Flow (m 3) Released Appendix B to 10 (Ci/m l) (Ci/m l) (Ci) CFR 20 Values Sample ID: 1001-562-1MA1 Ur anium-233/234 3r d Qtr 2023 3.87E-16 1.60E-16 1.63E-16 9.15E-17 0.000.01%

Ur anium-235/236 3r d Qtr 2023 5.55E-17 6.73E-17 6.74E-17 8.30E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/231.22E+06Res ult Below MDC Ur anium-238 3r d Qtr 2023 3.47E-16 1.49E-16 1.51E-16 6.72E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 3.12E-16 1.47E-16 1.49E-16 9.00E-17 0.000.01%

Ur anium-235/236 4th Qtr 2023 6.25E-17 8.18E-17 8.19E-17 1.25E-16 Res ult Below MDC1/5/202410/9/23 - 1/5/241.22E+06Res ult Below MDC Ur anium-238 4th Qtr 2023 2.13E-16 1.21E-16 1.22E-16 8.17E-17 0.000.01%

Sample ID: 1001-562-1MA2 Ur anium-233/234 3r d Qtr 2023 5.20E-16 1.65E-16 1.70E-16 7.43E-17 0.000.02%

Ur anium-235/236 3r d Qtr 2023 2.78E-17 4.28E-17 4.28E-17 6.45E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/237.85E+05Res ult Below MDC Ur anium-238 3r d Qtr 2023 3.56E-16 1.34E-16 1.37E-16 5.22E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 2.89E-16 9.49E-17 9.71E-17 3.63E-17 0.000.01%

Ur anium-235/236 4th Qtr 2023 1.85E-17 3.14E-17 3.14E-17 5.53E-17 Res ult Below MDC1/5/202410/9/23 - 1/5/241.44E+06Res ult Below MDC Ur anium-238 4th Qtr 2023 2.25E-16 8.39E-17 8.54E-17 4.55E-17 0.000.01%

Notes:

1001-562-1MA 1: Filter c hange-out in A ugus t did not oc c ur due to unit maintenanc e.

1001-562-1MA 2: Filter c hange-out in A ugus t did not oc c ur due to r edundant monitor ( 1001-562-1MA 1) maintenanc e.

TABLE 1-3 Separations Building Module-10 03 (SBM 1003): Pumped Extract Exhaust Gaseous Effluent Vent System, 1003-562-1MA1 &

1003-562 -1MA2 Gross Alpha & Beta, and Radionuclides: Quarters 3 & 4, 2023 URENCO USA Lea County, New Mexico

Seperations Building Module -1003 (SBM 1003) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Tent Qua ntity % of Table 2 Sam ple ID Sam ple Date Sam ple Period Analyte Gros s Res ult MD A (C i /m l ) Ins trum ent Sys t l Released of Appendix B (Func tional Loc. / On Date (Of f Date/Time) (Ci/m l) @ 95 CL U n c (C i /m l ) P) (Ci) to 10 CFR 20 Values 1003-562-1MA1 10035621MA 1 070623 08/02/2023 1236 07/06/23 - 08/02/23 0.00E+00 4.52E-16 0.00E+003.96E+05 < MDA < MDA 10035621MA 1 080223 09/01/2023 1050 08/02/23 - 09/01/23 5.37E-17 4.02E-16 6.76E-083.64E+05 < MDA < MDA 10035621MA 1 090123 10/09/2023 1115 09/01/23 - 10/09/23 1.10E-17 2.75E-16 2.07E-07G r o ss 4.71E+05 < MDA < MDA 10035621MA 1 100923 11/06/2023 1119 10/09/23 - 11/06/23 2.37E-16 4.36E-16 1.40E-07Alpha4.31E+05 < MDA < MDA 10035621MA 1 110623 12/11/2023 1015 11/06/23 - 12/11/23 0.00E+00 3.47E-16 0.00E+00 5.41E+05 < MDA < MDA 10035621MA 1 121123 01/05/2024 1348 12/11/23 - 01/05/24 6.56E-17 4.91E-16 6.76E-083.72E+05 < MDA < MDA 10035621MA 1 070623 08/02/2023 1236 07/06/23 - 08/02/23 4.15E-15 4.30E-15 1.64E-063.96E+05 < MDA < MDA 10035621MA 1 080223 09/01/2023 1050 08/02/23 - 09/01/23 2.40E-15 3.83E-15 1.53E-063.64E+05 < MDA < MDA 10035621MA 1 090123 10/09/2023 1115 09/01/23 - 10/09/23 2.26E-15 2.62E-15 1.91E-06G r o ss 4.71E+05 < MDA < MDA 10035621MA 1 100923 11/06/2023 1119 10/09/23 - 11/06/23 2.21E-15 4.16E-15 1.49E-06Be ta4.31E+05 < MDA < MDA 10035621MA 1 110623 12/11/2023 1015 11/06/23 - 12/11/23 2.23E-15 3.30E-15 1.55E-06 5.41E+05 < MDA < MDA 10035621MA 1 121123 01/05/2024 1348 12/11/23 - 01/05/24 4.75E-15 4.68E-15 1.66E-063.72E+05 1.77E-09 0.158%

1003-562-1MA2 10035621MA 2 070623 08/02/2023 1245 07/06/23 - 08/02/23 1.64E-16 5.94E-16 9.91E-084.37E+05 < MDA < MDA 10035621MA 2 080223 09/01/2023 1055 08/02/23 - 09/01/23 1.21E-16 4.36E-16 9.91E-083.54E+05 < MDA < MDA 10035621MA 2 090123 10/09/2023 1120 09/01/23 - 10/09/23 8.14E-17 2.94E-16 9.91E-08G r o ss 4.50E+05 < MDA < MDA 10035621MA 2 100923 11/06/2023 1128 10/09/23 - 11/06/23 1.13E-16 4.08E-16 9.91E-08Alpha4.53E+05 < MDA < MDA 10035621MA 2 110623 12/11/2023 1020 11/06/23 - 12/11/23 1.30E-16 3.18E-16 1.22E-07 5.79E+05 < MDA < MDA 10035621MA 2 121123 01/05/2024 1354 12/11/23 - 01/05/24 0.00E+00 3.98E-16 0.00E+00 4.04E+05 < MDA < MDA 10035621MA 2 070623 08/02/2023 1245 07/06/23 - 08/02/23 5.74E-15 5.66E-15 1.66E-064.37E+05 2.51E-09 0.191%

10035621MA 2 080223 09/01/2023 1055 08/02/23 - 09/01/23 3.01E-15 4.16E-15 1.56E-063.54E+05 < MDA < MDA 10035621MA 2 090123 10/09/2023 1120 09/01/23 - 10/09/23 2.70E-15 2.80E-15 1.64E-06G r o ss 4.50E+05 < MDA < MDA 10035621MA 2 100923 11/06/2023 1128 10/09/23 - 11/06/23 4.81E-15 3.89E-15 1.79E-06Be ta4.53E+05 2.18E-09 0.160%

10035621MA 2 110623 12/11/2023 1020 11/06/23 - 12/11/23 2.35E-15 3.03E-15 1.58E-06 5.79E+05 < MDA < MDA 10035621MA 2 121123 01/05/2024 1354 12/11/23 - 01/05/24 3.30E-15 3.80E-15 1.61E-06 4.04E+05 < MDA < MDA

Seperations Building Module -1003 (SBM 1003) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Sam ple Date Res ult Uncertainty Uncertainty MDC Total Qua ntity % of Table 2 of Radionuclide ( Of f Date) Sam ple Period (Ci/m l) (2 s igm a) (1 s igm a) (C i /m l ) Flow (m 3) Released Appendix B to 10 (Ci/m l) (Ci/m l) (Ci) CFR 20 Values 1003-562-1MA1 Ur anium-233/234 3r d Qtr 2023 1.74E-16 6.14E-17 6.27E-17 2.99E-17 0.000.01%

Ur anium-235/236 3r d Qtr 2023 2.75E-17 2.87E-17 2.87E-17 3.69E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/231.23E+06Res ult Below MDC Ur anium-238 3r d Qtr 2023 2.02E-16 6.59E-17 6.74E-17 2.20E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 2.62E-16 1.00E-16 1.02E-16 6.47E-17 0.000.01%

Ur anium-235/236 4th Qtr 2023 1.01E-17 3.20E-17 3.20E-17 7.07E-17 Res ult Below MDC1/5/202410/9/23 - 1/5/241.34E+06Res ult Below MDC Ur anium-238 4th Qtr 2023 2.43E-16 9.48E-17 9.63E-17 5.11E-17 0.000.01%

1003-562-1MA2 Ur anium-233/234 3r d Qtr 2023 3.07E-16 9.14E-17 9.40E-17 3.13E-17 0.000.01%

Ur anium-235/236 3r d Qtr 2023 0.00E+00 2.21E-17 2.21E-17 4.77E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/231.24E+06Res ult Below MDC Ur anium-238 3r d Qtr 2023 3.59E-16 9.92E-17 1.02E-16 2.72E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 1.50E-16 6.33E-17 6.42E-17 3.69E-17 0.000.00%

Ur anium-235/236 4th Qtr 2023 - 7.14E-18 1.68E-17 1.68E-17 4.84E-17 Res ult Below MDC1/5/202410/9/23 - 1/5/241.44E+06Res ult Below MDC Ur anium-238 4th Qtr 2023 8.75E-17 4.78E-17 4.82E-17 3.11E-17 0.000.00%

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 3 & 4, 2023 URENCO USA Lea County, New Mexico

Seperations Building Module -1005 (SBM 1005) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Total Vent Qua ntity % of Table 2 Sam ple ID Sam ple Date Sam ple Period Analyte Gros s Res ult MD A (C i /m l ) Ins trum ent Sys tem Flow Released of Appendix B (Func tional Loc. / On Date (Of f Date/Time) (Ci/m l) @ 95 CL U n c (C i /m l ) (m 3) (Ci) to 10 CFR 20 Values 1005-562-1MA1 10055621MA 1 070623 08/02/2023 1256 07/06/23 - 08/02/23 -2.61E-18 5.06E-16 6.76E-08 7.12E+05 < MDA < MDA 10055621MA 1 080223 09/01/2023 1134 08/02/23 - 09/01/23 2.46E-16 4.52E-16 1.40E-07 8.01E+05 < MDA < MDA 10055621MA 1 090123 10/09/2023 1130 09/01/23 - 10/09/23 4.79E-17 3.59E-16 6.76E-08 9.80E+05 < MDA < MDAG r o ss 10055621MA 1 100923 11/06/2023 1136 10/09/23 - 11/06/23 6.44E-37 4.82E-16 6.76E-08 7.34E+05 < MDA < MDAAlpha 10055621MA 1 110623 12/11/2023 1035 11/06/23 - 12/11/23 0.00E+00 3.75E-16 0.00E+00 9.35E+05 < MDA < MDA 10055621MA 1 121123 01/05/2024 1343 12/11/23 - 01/05/24 2.18E-16 5.33E-16 1.22E-07 6.83E+05 < MDA < MDA 10055621MA 1 070623 08/02/2023 1256 07/06/23 - 08/02/23 3.55E-15 4.82E-15 1.68E-067.12E+05 < MDA < MDA 10055621MA 1 080223 09/01/2023 1134 08/02/23 - 09/01/23 3.95E-15 4.30E-15 1.63E-068.01E+05 < MDA < MDA 10055621MA 1 090123 10/09/2023 1130 09/01/23 - 10/09/23 3.13E-15 3.42E-15 1.63E-06G r o ss 9.80E+05 < MDA < MDA 10055621MA 1 100923 11/06/2023 1136 10/09/23 - 11/06/23 5.54E-15 4.59E-15 1.73E-06Be ta 7.34E+05 4.07E-09 0.185%

10055621MA 1 110623 12/11/2023 1035 11/06/23 - 12/11/23 3.10E-15 3.57E-15 1.61E-069.35E+05 < MDA < MDA 10055621MA 1 121123 01/05/2024 1343 12/11/23 - 01/05/24 4.65E-15 5.07E-15 1.63E-066.83E+05 < MDA < MDA 1005-562-1MA2 10055621MA 2 070623 08/02/2023 1300 07/06/23 - 08/02/23 1.48E-16 5.36E-16 9.91E-08 7.29E+05 < MDA < MDA 10055621MA 2 080223 09/02/2023 1139 08/02/23 - 09/01/23 1.32E-16 4.77E-16 9.91E-08 8.14E+05 < MDA < MDA 10055621MA 2 090123 10/09/2023 1135 09/01/23 - 10/09/23 5.04E-17 3.78E-16 6.76E-08G r o ss 1.01E+06 < MDA < MDA 10055621MA 2 100923 11/06/2023 1142 10/09/23 - 11/06/23 0.00E+00 5.08E-16 0.00E+00Alpha 7.55E+05 < MDA < MDA 10055621MA 2 110623 12/11/2023 1040 11/06/23 - 12/11/23 5.28E-17 3.95E-16 6.76E-08 9.67E+05 < MDA < MDA 10055621MA 2 121123 01/05/2024 1345 12/11/23 - 01/05/24 0.00E+00 3.98E-16 0.00E+00 4.04E+05 < MDA < MDA 10055621MA 2 070623 08/02/2023 1300 07/06/23 - 08/02/23 4.68E-15 5.11E-15 1.63E-067.29E+05 < MDA < MDA 10055621MA 2 080223 09/02/2023 1139 08/02/23 - 09/01/23 2.11E-15 4.55E-15 1.53E-068.14E+05 < MDA < MDA 10055621MA 2 090123 10/09/2023 1135 09/01/23 - 10/09/23 4.34E-15 3.60E-15 1.73E-06G r o ss 1.01E+06 4.40E-09 0.145%

10055621MA 2 100923 11/06/2023 1142 10/09/23 - 11/06/23 4.66E-16 4.84E-15 1.32E-06Be ta7.55E+05 < MDA < MDA 10055621MA 2 110623 12/11/2023 1040 11/06/23 - 12/11/23 5.45E-15 3.77E-15 1.80E-069.67E+05 5.27E-09 0.182%

10055621MA 2 121123 01/05/2024 1345 12/11/23 - 01/05/24 4.33E-15 3.80E-15 1.76E-064.04E+05 1.75E-09 0.144%

Seperations Building Module -1005 (SBM 1005) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Sam ple Date Res ult Uncertainty Uncertainty MDC Total Qua ntity % of Table 2 of Radionuclide ( Of f Date) Sam ple Period (Ci/m l) (2 s igm a) (1 s igm a) (C i /m l ) Flow (m 3) Released Appendix B to 10 (Ci/m l) (Ci/m l) (Ci) CFR 20 Values 1005-562-1MA1 Ur anium-233/234 3r d Qtr 2023 2.98E-16 9.04E-17 9.28E-17 3.17E-17 0.000.01%

Ur anium-235/236 3r d Qtr 2023 1.61E-17 2.74E-17 2.74E-17 4.83E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/232.49E+06Res ult Below MDC Ur anium-238 3r d Qtr 2023 1.75E-16 6.80E-17 6.91E-17 2.75E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 2.42E-16 9.06E-17 9.23E-17 4.91E-17 5.70E-100.008%

Ur anium-235/236 4th Qtr 2023 3.62E-17 3.94E-17 3.95E-17 4.82E-17 Res ult Below MDC1/5/202410/9/23 - 1/5/242.35E+06Res ult Below MDC Ur anium-238 4th Qtr 2023 2.16E-16 8.75E-17 8.88E-17 6.39E-17 0.00E+000.007%

1005-562-1MA2 Ur anium-233/234 3r d Qtr 2023 1.83E-16 8.50E-17 8.60E-17 4.11E-17 0.000.01%

Ur anium-235/236 3r d Qtr 2023 1.20E-17 3.33E-17 3.33E-17 7.20E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/232.56E+06Res ult Below MDC Ur anium-238 3r d Qtr 2023 1.75E-16 8.46E-17 8.55E-17 5.82E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 3.03E-16 9.90E-17 1.01E-16 3.29E-17 6.44E-100.010%

Ur anium-235/236 4th Qtr 2023 5.77E-17 5.01E-17 5.03E-17 5.77E-17 0.001/5/202410/9/23 - 1/5/242.13E+060.00%

Ur anium-238 4th Qtr 2023 2.65E-16 9.31E-17 9.50E-17 4.67E-17 0.00E+000.009%

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 3 & 4, 2023 URENCO USA Lea County, New Mexico

Container Receipt and Dispatch Building -1100 (CRDB 1100) Exhaust (FHGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Total Vent Qua ntity % of Table 2 Sam ple ID Sam ple Date Sam ple Period Analyte Gros s Res ult MD A (C i /m l ) Ins trum ent Sys tem Flow Released of Appendix B (Func tional Loc. / On Date (Of f Date/Time) (Ci/m l) @ 95 CL U n c (C i /m l ) (m 3) (Ci) to 10 CFR 20 Values 1100-562-1MA1 11005621MA 1 070623 08/02/2023 1310 07/06/23 - 08/02/23 2.35E-16 4.32E-16 1.40E-076.67E+05 < MDA < MDA 11005621MA 1 080223 09/01/2023 1144 08/02/23 - 09/01/23 5.20E-17 3.89E-16 6.76E-087.34E+05 < MDA < MDA 11005621MA 1 090123 10/09/2023 1100 09/01/23 - 10/09/23 0.00E+00 3.12E-16 0.00E+00G r o ss 9.67E+05 < MDA < MDA 11005621MA 1 100923 11/07/2023 0940 10/09/23 - 11/07/23 5.32E-17 3.98E-16 6.76E-08Alpha7.23E+05 < MDA < MDA 11005621MA 1 110723 12/11/2023 1050 11/07/23 - 12/11/23 6.65E-17 3.40E-16 9.91E-088.60E+05 < MDA < MDA 11005621MA 1 121123 01/05/2024 1358 12/11/23 - 01/05/24 1.90E-16 4.64E-16 1.22E-07 6.11E+05 < MDA < MDA 11005621MA 1 070623 08/02/2023 1310 07/06/23 - 08/02/23 4.18E-15 4.12E-15 1.66E-066.67E+05 2.79E-09 0.139%

11005621MA 1 080223 09/01/2023 1144 08/02/23 - 09/01/23 1.61E-15 3.71E-15 1.46E-067.34E+05 < MDA < MDA 11005621MA 1 090123 10/09/2023 1100 09/01/23 - 10/09/23 3.45E-15 2.98E-15 1.71E-06G r o ss 9.67E+05 3.34E-09 0.115%

11005621MA 1 100923 11/07/2023 0940 10/09/23 - 11/07/23 2.02E-15 3.80E-15 1.49E-06Be ta7.23E+05 < MDA < MDA 11005621MA 1 110723 12/11/2023 1050 11/07/23 - 12/11/23 2.18E-15 3.23E-15 1.65E-068.60E+05 < MDA < MDA 11005621MA 1 121123 01/05/2024 1358 12/11/23 - 01/05/24 4.70E-15 4.42E-15 1.68E-066.11E+05 2.87E-09 0.157%

1100-562-1MA2 11005621MA 2 070623 08/02/2023 1315 07/06/23 - 08/02/23 0.00E+00 6.12E-16 0.00E+00 2.31E+05 < MDA < MDA 11005621MA 2 080223 09/01/2023 1146 08/02/23 - 09/01/23 -6.93E-17 4.87E-16 2.59E-10 4.77E+05 < MDA < MDA 11005621MA 2 090123 10/09/2023 1103 09/01/23 - 10/09/23 0.00E+00 5.16E-16 0.00E+00G r o ss 1.17E+05 < MDA < MDA 11005621MA 2 100923 11/07/2023 1040 10/09/23 - 11/07/23 1.93E-16 4.73E-16 1.22E-07Alpha6.08E+05 < MDA < MDA 11005621MA 2 110723 12/11/2023 1053 11/07/23 - 12/11/23 5.32E-17 3.98E-16 6.76E-087.53E+05 < MDA < MDA 11005621MA 2 121123 01/05/2024 1400 12/11/23 - 01/05/24 1.56E-16 5.65E-16 9.91E-084.69E+05 < MDA < MDA 11005621MA 2 070623 08/02/2023 1315 07/06/23 - 08/02/23 7.32E-15 5.83E-15 1.74E-062.31E+05 1.69E-09 0.244%

11005621MA 2 080223 09/01/2023 1146 08/02/23 - 09/01/23 1.62E-15 4.63E-15 1.55E-064.77E+05 < MDA < MDA 11005621MA 2 090123 10/09/2023 1103 09/01/23 - 10/09/23 6.40E-15 4.91E-15 1.76E-06G r o ss 1.17E+05 7.46E-10 0.213%

11005621MA 2 100923 11/07/2023 1040 10/09/23 - 11/07/23 6.52E-15 4.50E-15 1.80E-06Be ta6.08E+05 3.97E-09 0.217%

11005621MA 2 110723 12/11/2023 1053 11/07/23 - 12/11/23 3.97E-15 3.80E-15 1.73E-067.53E+05 2.99E-09 0.132%

11005621MA 2 121123 01/05/2024 1400 12/11/23 - 01/05/24 5.19E-15 5.38E-15 1.64E-064.69E+05 < MDA < MDA

Container Receipt and Dispatch Building -1100 (CRDB 1100) Fume Hood Exhaust (FHGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Sam ple Date Res ult Uncertainty Uncertainty MDC Total Qua ntity % of Table 2 of Radionuclide ( Of f Date) Sam ple Period (Ci/m l) (2 s igm a) (1 s igm a) (C i /m l ) Flow (m 3) Released Appendix B to 10 (Ci/m l) (Ci/m l) (Ci) CFR 20 Values 1100-562-1MA1 Ur anium-233/234 3r d Qtr 2023 2.30E-16 8.18E-17 8.35E-17 4.57E-17 0.000.01%

Ur anium-235/236 3r d Qtr 2023 1.38E-17 2.37E-17 2.37E-17 4.07E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/232.37E+06Res ult Below MDC Ur anium-238 3r d Qtr 2023 1.95E-16 7.39E-17 7.52E-17 3.30E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 2.62E-16 8.73E-17 8.93E-17 4.13E-17 0.000.01%

Ur anium-235/236 4th Qtr 2023 2.55E-17 3.34E-17 3.34E-17 5.09E-17 Res ult Below MDC1/5/202410/9/23 - 1/5/242.19E+06Res ult Below MDC Ur anium-238 4th Qtr 2023 2.27E-16 8.10E-17 8.26E-17 4.12E-17 0.000.01%

1100-562-1MA2 Ur anium-233/234 3r d Qtr 2023 2.90E-16 1.07E-16 1.09E-16 4.60E-17 0.000.01%

Ur anium-235/236 3r d Qtr 2023 1.50E-17 3.35E-17 3.35E-17 6.71E-17 Res ult Below MDC10/9/20237/6/23 - 10/9/238.24E+05Res ult Below MDC Ur anium-238 3r d Qtr 2023 3.20E-16 1.12E-16 1.14E-16 3.99E-17 0.000.01%

Ur anium-233/234 4th Qtr 2023 2.27E-16 9.39E-17 9.53E-17 4.02E-17 0.000.01%

Ur anium-235/236 4th Qtr 2023 7.52E-18 2.38E-17 2.38E-17 5.70E-17 Res ult Below MDC1/5/202410/9/23 - 1/5/241.83E+06Res ult Below MDC Ur anium-238 4th Qtr 2023 2.20E-16 9.39E-17 9.52E-17 5.80E-17 0.000.01%

Notes:

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 3 & 4, 2023 URENCO USA Lea County, New Mexico

Container Receipt and Dispatch Building -1100 (CRDB 1100) Fume Hood Exhaust (LXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Total Vent Qua ntity % of Table 2 Sam ple ID Sam ple Date Sam ple Period Analyte Gros s Res ult MD A (C i /m l ) Ins trum ent Sys tem Flow Released of Appendix B (Func tional Loc. / On Date (Of f Date/Time) (Ci/m l) @ 95 CL U n c (C i /m l ) (m 3) (Ci) to 10 CFR 20 Values 1100-562-2MA1 11005622MA 1 070623 08/02/2023 1319 07/06/23 - 08/02/23 6.56E-17 4.91E-16 6.76E-081.51E+07 < MDA < MDA 11005622MA 1 080223 09/01/2023 1148 08/02/23 - 09/01/23 9.40E-17 7.04E-16 6.76E-08 3.11E+07 < MDA < MDAG r o ss 11005622MA 1 090123 11/09/2023 1130 09/01/23 - 11/09/23 2.70E-16 6.59E-16 1.22E-07 2.04E+07 < MDA < MDAAlpha 11005622MA 1 110923 12/11/2023 1056 11/09/23 - 12/11/23 2.92E-17 4.91E-16 6.76E-08 2.38E+07 < MDA < MDA 11005622MA 1 121123 01/05/2024 1401 12/11/23 -01/05/24 6.90E-14 5.16E-13 6.76E-08 6.78E+02 < MDA < MDA 11005622MA 1 070623 08/02/2023 1319 07/06/23 - 08/02/23 6.78E-16 4.68E-15 1.34E-061.51E+07 < MDA < MDA 11005622MA 1 080223 09/01/2023 1148 08/02/23 - 09/01/23 6.68E-15 6.70E-15 1.71E-06 3.11E+07 < MDA < MDAG r o ss 11005622MA 1 090123 11/09/2023 1130 09/01/23 - 11/09/23 5.76E-15 6.28E-15 1.63E-06 2.04E+07 < MDA < MDABe ta 11005622MA 1 110923 12/11/2023 1056 11/09/23 - 12/11/23 1.81E-15 4.68E-15 1.55E-06 2.38E+07 < MDA < MDA 11005622MA 1 121123 01/05/2024 1401 12/11/23 -01/05/24 3.56E-15 4.92E-15 1.56E-06 6.78E+02 < MDA < MDA 1100-562-2MA2 11005622MA 2 070623 08/02/2023 1324 07/06/23 - 08/02/23 1.06E-16 7.96E-16 6.76E-08G r o ss 2.79E+02 < MDA < MDA 11005622MA 2 080223 12/11/2023 1059 08/02/23 - 12/11/23 4.73E-17 1.71E-16 9.91E-08 1.33E+08 < MDA < MDAAlpha 11005622MA 2 121123 01/05/2024 1403 12/11/23 - 01/05/24 3.42E-16 8.35E-16 1.22E-07 7.18E+02 < MDA < MDA 11005622MA 2 070623 08/02/2023 1324 07/06/23 - 08/02/23 6.59E-15 7.58E-15 1.61E-06G r o ss 2.79E+02 < MDA < MDA 11005622MA 2 080223 12/11/2023 1059 08/02/23 - 12/11/23 1.57E-15 1.63E-15 1.64E-06 1.33E+08 < MDA < MDABe ta 11005622MA 2 121123 01/05/2024 1403 12/11/23 - 01/05/24 7.29E-15 7.95E-15 1.63E-06 7.18E+02 < MDA < MDA

Container Receipt and Dispatch Building -1100 (CRDB 1100) Local Extract Exhaust (LXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Sam ple Date Res ult Uncertainty Uncertainty MDC Total Qua ntity % of Table 2 of Radionuclide ( Of f Date) Sam ple Period (Ci/m l) (2 s igm a) (1 s igm a) (C i /m l ) Flow (m 3) Released Appendix B to 10 (Ci/m l) (Ci/m l) (Ci) CFR 20 Values 1100-562-2MA1 Ur anium-233/234 3r d Qtr 2023 3.19E-16 1.31E-16 1.33E-16 6.94E-17 1.47E- 080.011%

Ur anium-235/236 3r d Qtr 2023 4.82E-17 6.31E-17 6.32E-17 9.63E-17 Res ult Below MDC9/1/20237/6/23 - 9/1/234.62E+07Res ult Below MDC Ur anium-238 3r d Qtr 2023 3.20E-16 1.30E-16 1.32E-16 6.30E-17 0.00E+000.011%

Ur anium-233/234 4th Qtr 2023 4.04E-16 1.24E-16 1.28E-16 5.39E-17 0.000.013%

Ur anium-235/236 4th Qtr 2023 7.76E-17 6.18E-17 6.21E-17 6.65E-17 0.001/5/20249/1/23 - 1/5/244.41E+070.003%

Ur anium-238 4th Qtr 2023 2.85E-16 1.02E-16 1.04E-16 3.79E-17 0.000.010%

1100-562-2MA2 Ur anium-233/234 3r d Qtr 2023 1.53E-15 5.09E-16 5.21E-16 1.97E-16 4.26E-130.051%

Ur anium-235/236 3r d Qtr 2023 2.51E-16 2.42E-16 2.42E-16 3.01E-16 Res ult Below MDC8/2/20237/6/23 - 8/2/232.79E+02Res ult Below MDC Ur anium-238 3r d Qtr 2023 9.77E-16 4.08E-16 4.14E-16 2.47E-16 0.00E+000.033%

Ur anium-233/234 4th Qtr 2023 2.94E-16 9.49E-17 9.72E-17 4.61E-17 0.000.010%

Ur anium-235/236 4th Qtr 2023 3.39E-17 3.50E-17 3.51E-17 3.74E-17 Res ult Below MDC1/5/20248/2/23 - 1/5/241.33E+08Res ult Below MDC Ur anium-238 4th Qtr 2023 3.47E-16 1.03E-16 1.06E-16 3.82E-17 0.000.012%

Notes:

1100- 562-2MA 1: Total V ent Sy s tem Flow f or f ilter per iod 8/2/23 - 9/1/23 c ollec ted f r om r edundant monitor ( 1100- 562-2MA 2) due to maintenanc e is s ue on 2MA 1 unit.

Filter c hange-out in Oc tober did not oc c ur due to unit maintenanc e.

1100- 562-2MA 2: Filter c hange-out in September, Oc tober, and Nov ember did not oc c ur due to r edundant monitor ( 1100- 562-2MA 1) maintenanc e.

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