ML23240A743

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Louisiana Energy Services, LLC, Dba Urenco USA, Semi-Annual Radiological Effluent Release Report for Jan 1, 2023 Through June 30, 2023
ML23240A743
Person / Time
Site: 07003103
Issue date: 08/28/2023
From:
Louisiana Energy Services, URENCO USA
To:
Office of Nuclear Material Safety and Safeguards
Shared Package
ML23240A741 List:
References
LES-23-133-NRC
Download: ML23240A743 (1)
v • d • e


Text

URENCO USA: Report of Radioactivity in Effluents: Liquid & Air: January 2023 - June 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. 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.

LIST OF TABLES Table No.

Title 1-1 Lift Station 1 Wastewater Effluent - Radionuclides Quarters 1 & 2, 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 1 & 2, 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 1 & 2, 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: 1 & 2, 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 1 & 2, 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 1 & 2, 2023

TABLE 1-1 Lift Station 1 Wastewater Effluent - Radionuclides, Quarters 1 & 2, 2023 URENCO USA Lea County, New Mexico URENCO USA Lea County New Mexico Lift Station 1 WasteWater Effluent-Radionuclides Radionuclide Sample Date (Date/Time)

Sample Period Total Time (days)

Results (Ci/ml)

Counting Uncertainty (Ci/ml)

Total Flow*

(gallons/day)

Quantity Released (Ci)

% of Table 3 of Appendix B to 10 CFR 20 Values-Monthly Average Release to Sewers 1Lift Station 1 - January - June 2023 Uranium - 233/234 6/30/2023 0938 01/01/23 06/30/23 180 4.80E-10 1.50E-10 13,000 Result Below LLD Result Below LLD Uranium - 235/236 0.00E+00 0.00E+00 13,000 Result Below LLD Result Below LLD Uranium - 238 3.80E-10 1.30E-10 13,000 Result Below LLD Result Below LLD Lift Station 1 Duplicate - January - June 2023 Uranium - 233/234 6/30/2023 0938 01/01/23 06/30/23 180 4.30E-10 1.40E-10 13,000 Result Below LLD Result Below LLD Uranium - 235/236 0.00E+00 0.00E+00 13,000 Result Below LLD Result Below LLD Uranium - 238 0.00E+00 0.00E+00 13,000 Result Below LLD Result Below LLD 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, 2023 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 010323 2/1/2023 11:35 01/03/23 - 02/01/23 1.25E-16 1.74E-16 1.22E-07 3.91E+05

<MDA

<MDA 10015621MA1 020123 3/2/2023 11:24 2/01/203 - 3/02/23 0.00E+00 1.74E-16 0.00E+00 4.23E+05

<MDA

<MDA 10015621MA1 030223 4/3/2023 15:00 3/02/23 - 4/03/23 5.59E-17 1.55E-16 9.91E-08 4.55E+05

<MDA

<MDA 10015621MA1 040323 5/4/2023 11:00 4/03/23 - 5/04/23 4.14E-17 1.20E-15 3.19E-08 4.29E+05

<MDA

<MDA 10015621MA1 050423 6/1/2023 14:05 5/04/23 - 6/01/23 1.21E-16 1.41E-15 4.96E-08 3.05E+05

<MDA

<MDA 10015621MA1 060123 7/6/2023 14:02 6/01/23 - 7/06/23 0.00E+00 1.14E-15 0.00E+00 3.46E+05

<MDA

<MDA 10015621MA1 010323 2/1/2023 11:35 01/03/23 - 02/01/23 3.49E-15 3.41E-15 1.46E-06 3.91E+05 1.37E-09 0.116%

10015621MA1 020123 3/2/2023 11:24 2/01/203 - 3/02/23 7.01E-15 3.41E-15 1.68E-06 4.23E+05 2.97E-09 0.234%

10015621MA1 030223 4/3/2023 15:00 3/02/23 - 4/03/23 4.26E-15 3.04E-15 1.56E-06 4.55E+05 1.94E-09 0.142%

10015621MA1 040323 5/4/2023 11:00 4/03/23 - 5/04/23 5.58E-16 7.95E-15 1.35E-07 4.29E+05

<MDA

<MDA 10015621MA1 050423 6/1/2023 14:05 5/04/23 - 6/01/23 7.25E-16 9.30E-15 1.44E-07 3.05E+05

<MDA

<MDA 10015621MA1 060123 7/6/2023 14:02 6/01/23 - 7/06/23 5.49E-16 7.54E-15 1.40E-07 3.46E+05

<MDA

<MDA 10015621MA2 010323 2/1/2023 11:39 01/03/23 - 02/01/23 1.15E-16 1.54E-16 9.91E-08 3.27E+05

<MDA

<MDA 10015621MA2 020123 3/2/2023 11:39 2/01/203 - 3/02/23 1.22E-16 1.63E-16 9.91E-08 4.53E+05

<MDA

<MDA 10015621MA2 030223 4/3/2023 15:04 3/02/23 - 4/03/23 5.32E-17 1.48E-16 6.76E-08 4.85E+05

<MDA

<MDA 10015621MA2 040323 5/4/2023 11:04 4/03/23 - 5/04/23 2.89E-17 1.17E-15 3.19E-08 4.63E+05

<MDA

<MDA 10015621MA2 050423 6/1/2023 14:12 5/04/23 - 6/01/23 0.00E+00 1.21E-15 0.00E+00 4.18E+05

<MDA

<MDA 10015621MA2 060123 7/6/2023 14:09 6/01/23 - 7/06/23 0.00E+00 1.07E-15 0.00E+00 5.20E+05

<MDA

<MDA 10015621MA2 010323 2/1/2023 11:39 01/03/23 - 02/01/23 6.47E-15 3.02E-15 1.64E-06 3.27E+05 2.11E-09 0.216%

10015621MA2 020123 3/2/2023 11:39 2/01/203 - 3/02/23 4.03E-15 3.20E-15 1.39E-06 4.53E+05 1.83E-09 0.134%

10015621MA2 030223 4/3/2023 15:04 3/02/23 - 4/03/23 4.94E-15 2.90E-15 1.52E-06 4.85E+05 2.39E-09 0.165%

10015621MA2 040323 5/4/2023 11:04 4/03/23 - 5/04/23 5.43E-16 7.74E-15 1.49E-07 4.63E+05

<MDA

<MDA 10015621MA2 050423 6/1/2023 14:12 5/04/23 - 6/01/23 6.46E-16 8.03E-15 1.44E-07 4.18E+05

<MDA

<MDA 10015621MA2 060123 7/6/2023 14:09 6/01/23 - 7/06/23 5.31E-16 7.05E-15 1.40E-07 5.20E+05

<MDA

<MDA Gross Alpha 1001-562-1MA1 Seperations Building Module - 1001 (SBM 1001) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 1001-562-1MA2 Gross Beta Gross Beta 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-233/234 1st Qtr 2023 3.23E-16 1.41E-16 1.42E-16 8.80E-17 0.00 Uranium-235/236 1st Qtr 2023 5.43E-17 7.11E-17 7.12E-17 1.09E-16 Result Below MDC Uranium-238 1st Qtr 2023 3.34E-16 1.41E-16 1.43E-16 6.11E-17 0.00 Uranium-233/234 2nd Qtr 2023 2.32E-16 1.26E-16 1.28E-16 8.12E-17 0.00 Uranium-235/236 2nd Qtr 2023 8.03E-17 8.27E-17 8.29E-17 8.75E-17 Result Below MDC Uranium-238 2nd Qtr 2023 2.15E-16 1.22E-16 1.23E-16 8.11E-17 0.00 Uranium-233/234 1st Qtr 2023 2.45E-16 8.31E-17 8.50E-17 2.85E-17 0.00 Uranium-235/236 1st Qtr 2023 4.08E-17 3.72E-17 3.74E-17 3.52E-17 0.00 Uranium-238 1st Qtr 2023 3.28E-16 9.77E-17 1.00E-16 4.09E-17 0.00 Uranium-233/234 2nd Qtr 2023 1.86E-16 7.11E-17 7.24E-17 2.79E-17 0.00 Uranium-235/236 2nd Qtr 2023 3.30E-17 3.63E-17 3.64E-17 4.95E-17 Result Below MDC Uranium-238 2nd Qtr 2023 1.40E-16 6.25E-17 6.33E-17 4.01E-17 0.00 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 0.01%

0.01%

Result Below MDC

% of Table 2 of Appendix B to 10 CFR 20 Values 7/6/2023 0.01%

Result Below MDC 0.01%

4/3/23 - 7/6/23 4/3/2023 1.26E+06 1.40E+06 0.01%

4/3/2023 1/3/23 - 4/3/23 1/3/23 - 4/3/23 4/3/23 - 7/6/23 Result Below MDC 0.01%

0.01%

0.00%

1.27E+06 1.08E+06 7/6/2023 0.00%

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, 2023 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 010323 2/1/2023 12:08 01/03/23 - 02/01/23 0.00E+00 1.45E-16 0.00E+00 4.58E+05

<MDA

<MDA 10035621MA1 020123 3/2/2023 14:01 2/01/203 - 3/02/23 1.47E-16 1.33E-16 1.22E-07 4.42E+05 6.49E-11 0.005%

10035621MA1 030223 4/3/2023 13:52 3/02/23 - 4/03/23 0.00E+00 1.34E-16 0.00E+00 4.90E+05

<MDA

<MDA 10035621MA1 040323 6/1/2023 14:30 4/03/23 - 6/01/23 0.00E+00 1.08E-15 0.00E+00 1.90E+05

<MDA

<MDA 10035621MA1 060123 7/6/2023 14:23 6/01/23 - 7/06/23 3.20E-17 9.29E-16 3.19E-08 4.69E+05

<MDA

<MDA 10035621MA1 010323 2/1/2023 12:08 01/03/23 - 02/01/23 6.07E-15 2.83E-15 1.64E-06 4.58E+05 2.78E-09 0.202%

10035621MA1 020123 3/2/2023 14:01 2/01/203 - 3/02/23 3.35E-15 2.61E-15 1.54E-06 4.42E+05 1.48E-09 0.112%

10035621MA1 030223 4/3/2023 13:52 3/02/23 - 4/03/23 3.31E-15 2.63E-15 1.39E-06 4.90E+05 1.62E-09 0.110%

10035621MA1 040323 6/1/2023 14:30 4/03/23 - 6/01/23 5.77E-16 7.17E-15 1.44E-07 1.90E+05

<MDA

<MDA 10035621MA1 060123 7/6/2023 14:23 6/01/23 - 7/06/23 5.43E-16 6.15E-15 1.49E-07 4.69E+05

<MDA

<MDA 10035621MA2 010323 2/1/2023 12:13 01/03/23 - 02/01/23 0.00E+00 2.01E-16 0.00E+00 5.06E+05

<MDA

<MDA 10035621MA2 020123 3/2/2023 14:13 2/01/203 - 3/02/23 1.56E-16 2.09E-16 9.91E-08 4.87E+05

<MDA

<MDA 10035621MA2 030223 4/3/2023 13:59 3/02/23 - 4/03/23

-2.69E-18 1.90E-16 6.76E-08 5.36E+05

<MDA

<MDA 10035621MA2 040323 6/1/2023 14:40 4/03/23 - 6/01/23

-4.81E-19 7.36E-16 2.25E-08 9.78E+05

<MDA

<MDA 10035621MA2 060123 7/6/2023 14:32 6/01/23 - 7/06/23 4.03E-17 1.17E-15 3.19E-08 5.81E+05

<MDA

<MDA 10035621MA2 010323 2/1/2023 12:13 01/03/23 - 02/01/23 8.67E-15 3.93E-15 1.66E-06 5.06E+05 4.39E-09 0.289%

10035621MA2 020123 3/2/2023 14:13 2/01/203 - 3/02/23 7.49E-15 4.09E-15 1.56E-06 4.87E+05 3.65E-09 0.250%

10035621MA2 030223 4/3/2023 13:59 3/02/23 - 4/03/23 5.69E-15 3.72E-15 1.60E-06 5.36E+05 3.05E-09 0.190%

10035621MA2 040323 6/1/2023 14:40 4/03/23 - 6/01/23 1.49E-16 4.87E-15 1.31E-07 9.78E+05

<MDA

<MDA 10035621MA2 060123 7/6/2023 14:32 6/01/23 - 7/06/23 4.14E-16 7.74E-15 1.31E-07 5.81E+05

<MDA

<MDA Gross Alpha Gross Beta Gross Alpha Seperations Building Module -1003 (SBM 1003) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Gross Beta 1003-562-1MA2 1003-562-1MA1 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-233/234 1st Qtr 2023 3.25E-16 9.61E-17 9.88E-17 3.19E-17 0.00 Uranium-235/236 1st Qtr 2023 4.94E-17 4.29E-17 4.31E-17 4.94E-17 0.00 Uranium-238 1st Qtr 2023 2.59E-16 8.47E-17 8.67E-17 2.78E-17 0.00 Uranium-233/234 2nd Qtr 2023 3.74E-16 1.21E-16 1.24E-16 4.51E-17 0.00 Uranium-235/236 2nd Qtr 2023 0.00E+00 3.23E-17 3.23E-17 6.98E-17 Result Below MDC Uranium-238 2nd Qtr 2023 3.74E-16 1.21E-16 1.24E-16 4.51E-17 0.00 Uranium-233/234 1st Qtr 2023 5.01E-16 1.41E-16 1.45E-16 3.89E-17 0.00 Uranium-235/236 1st Qtr 2023 2.10E-17 3.21E-17 3.21E-17 4.79E-17 Result Below MDC Uranium-238 1st Qtr 2023 5.30E-16 1.46E-16 1.51E-16 5.57E-17]

Result Below MDC Uranium-233/234 2nd Qtr 2023 2.31E-16 1.00E-16 1.02E-16 6.98E-17 0.00 Uranium-235/236 2nd Qtr 2023 7.11E-17 6.10E-17 6.12E-17 6.01E-17 0.00 Uranium-238 2nd Qtr 2023 1.49E-16 7.85E-17 7.92E-17 4.86E-17 0.00 7/6/2023 1/3/23 - 4/3/23 4/3/23 - 7/6/23 0.02%

Result Below MDC 7/6/2023 1.53E+06 0.00%

1003-562-1MA1 4/3/23 - 7/6/23 0.01%

0.01%

0.00%

Result Below MDC 1/3/23 - 4/3/23 1.56E+06 0.01%

0.00%

Seperations Building Module -1003 (SBM 1003) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 4/3/2023 1.39E+06 6.59E+05 1003-562-1MA2

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

0.01%

4/3/2023 Result Below MDC Notes: 04/03/2023 - Unable to perform filter change out on 1003-562-1MA2 due to 1003-562-1MA1 being out of service after instrument fault. Filters removed on 6/1/2023.

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, 2023 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 010323 2/1/2023 12:24 01/03/23 - 02/01/23 0.00E+00 1.89E-16 0.00E+00 7.66E+05

<MDA

<MDA 10055621MA1 020123 3/2/2023 14:26 2/01/203 - 3/02/23 2.74E-16 1.84E-16 1.40E-07 7.66E+05 2.10E-10 0.009%

10055621MA1 030223 4/3/2023 13:40 3/02/23 - 4/03/23 1.27E-16 1.71E-16 9.91E-08 8.25E+05

<MDA

<MDA 10055621MA1 040323 5/4/2023 11:40 4/03/23 - 5/04/23 2.06E-17 1.20E-15 2.25E-08 7.85E+05

<MDA

<MDA 10055621MA1 050423 6/1/2023 15:10 5/04/23 - 6/01/23 0.00E+00 1.28E-15 0.00E+00 7.04E+05

<MDA

<MDA 10055621MA1 060123 7/6/2023 14:44 6/01/23 - 7/06/23 1.70E-17 9.92E-16 2.25E-08 8.92E+05

<MDA

<MDA 10055621MA1 010323 2/1/2023 12:24 01/03/23 - 02/01/23 5.13E-15 3.70E-15 1.43E-06 7.66E+05 3.93E-09 0.171%

10055621MA1 020123 3/2/2023 14:26 01/03/23 - 02/01/23 4.55E-15 3.61E-15 1.39E-06 7.66E+05 3.48E-09 0.152%

10055621MA1 030223 4/3/2023 13:40 3/02/23 - 4/03/23 3.16E-15 3.35E-15 1.29E-06 8.25E+05

<MDA

<MDA 10055621MA1 040323 5/4/2023 11:40 4/03/23 - 5/04/23 5.99E-16 7.95E-15 1.40E-07 7.85E+05

<MDA

<MDA 10055621MA1 050423 6/1/2023 15:10 5/04/23 - 6/01/23 6.40E-16 8.50E-15 1.40E-07 7.04E+05

<MDA

<MDA 10055621MA1 060123 7/6/2023 14:44 6/01/23 - 7/06/23 3.58E-16 6.57E-15 1.26E-07 8.92E+05

<MDA

<MDA 10055621MA2 010323 2/1/2023 12:25 01/03/23 - 02/01/23 1.05E-16 9.49E-17 1.22E-07 1.49E+06 1.56E-10 0.003%

10055621MA2 020123 3/2/2023 14:30 2/01/203 - 3/02/23 6.50E-17 1.81E-16 6.76E-08 7.82E+05

<MDA

<MDA 10055621MA2 030223 4/3/2023 13:47 3/02/23 - 4/03/23 1.25E-16 1.68E-16 9.91E-08 8.46E+05

<MDA

<MDA 10055621MA2 040323 5/4/2023 11:43 4/03/23 - 5/04/23 0.00E+00 1.21E-15 0.00E+00 8.09E+05

<MDA

<MDA 10055621MA2 050423 6/1/2023 15:03 5/04/23 - 6/01/23 2.27E-17 1.32E-15 2.25E-08 7.31E+05

<MDA

<MDA 10055621MA2 060123 7/6/2023 14:49 6/01/23 - 7/06/23 1.86E-17 1.08E-15 2.25E-08 9.08E+05

<MDA

<MDA 10055621MA2 010323 2/1/2023 12:25 01/03/23 - 02/01/23 2.58E-15 1.86E-15 1.43E-06 1.49E+06 3.84E-09 0.086%

10055621MA2 020123 3/2/2023 14:30 2/01/203 - 3/02/23 5.80E-15 3.54E-15 1.50E-06 7.82E+05 4.53E-09 0.193%

10055621MA2 030223 4/3/2023 13:47 3/02/23 - 4/03/23 5.18E-15 3.29E-15 1.49E-06 8.46E+05 4.38E-09 0.173%

10055621MA2 040323 5/4/2023 11:43 4/03/23 - 5/04/23 5.43E-16 8.03E-15 1.35E-07 8.09E+05

<MDA

<MDA 10055621MA2 050423 6/1/2023 15:03 5/04/23 - 6/01/23 4.76E-16 8.73E-15 1.26E-07 7.31E+05

<MDA

<MDA 10055621MA2 060123 7/6/2023 14:49 6/01/23 - 7/06/23 5.96E-16 7.17E-15 1.44E-07 9.08E+05

<MDA

<MDA Gross Beta Gross Alpha Seperations Building Module -1005 (SBM 1005) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta Gross Beta 1005-562-1MA2 1005-562-1MA1 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-233/234 1st Qtr 2023 3.09E-16 9.92E-17 1.02E-16 4.52E-17 0.00 Uranium-235/236 1st Qtr 2023 3.72E-17 4.09E-17 4.10E-17 5.58E-17 Result Below MDC Uranium-238 1st Qtr 2023 2.63E-16 9.12E-17 9.31E-17 4.51E-17 0.00 Uranium-233/234 2nd Qtr 2023 1.22E-16 6.11E-17 6.17E-17 4.54E-17 2.91E-10 Uranium-235/236 2nd Qtr 2023 5.69E-18 2.60E-17 2.60E-17 6.09E-17 Result Below MDC Uranium-238 2nd Qtr 2023 1.33E-16 6.44E-17 6.51E-17 5.11E-17 0.00E+00 Uranium-233/234 1st Qtr 2023 1.37E-16 5.36E-17 5.45E-17 2.46E-17 0.00 Uranium-235/236 1st Qtr 2023 2.21E-17 2.52E-17 2.52E-17 3.33E-17 Result Below MDC Uranium-238 1st Qtr 2023 1.71E-16 6.03E-17 6.16E-17 2.89E-17 0.00 Uranium-233/234 2nd Qtr 2023 1.64E-16 7.05E-17 7.15E-17 4.14E-17 4.02E-10 Uranium-235/236 2nd Qtr 2023 1.66E-17 2.53E-17 2.53E-17 3.78E-17 Result Below MDC Uranium-238 2nd Qtr 2023 1.79E-16 7.35E-17 7.46E-17 3.84E-17 0.00E+00 0.01%

Result Below MDC 1005-562-1MA2 4/3/2023 Result Below MDC

% of Table 2 of Appendix B to 10 CFR 20 Values Seperations Building Module -1005 (SBM 1005) Pumped Extract Exhaust (PXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 7/6/2023 0.004%

0.004%

1005-562-1MA1 7/6/2023 0.005%

1/3/23 - 4/3/23 4/3/23 - 7/6/23 0.01%

4/3/23 - 7/6/23 2.36E+06 2.38E+06 3.12E+06 2.45E+06 1/3/23 - 4/3/23 Result Below MDC 0.01%

0.00%

0.006%

Result Below MDC 4/3/2023 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, 2023 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 010323 2/1/2023 11:50 01/03/23 - 02/01/23 1.26E-16 1.69E-16 9.91E-08 7.31E+05

<MDA

<MDA 11005621MA1 020123 3/3/2023 10:47 2/01/203 - 3/03/23 0.00E+00 1.54E-16 0.00E+00 7.29E+05

<MDA

<MDA 11005621MA1 030323 4/3/2023 14:25 3/03/23 - 4/03/23 0.00E+00 1.77E-16 0.00E+00 5.04E+05

<MDA

<MDA 11005621MA1 040323 5/4/2023 14:09 4/03/23 - 5/04/23 0.00E+00 1.36E-15 0.00E+00 1.08E+05

<MDA

<MDA 11005621MA1 050423 6/1/2023 15:28 5/04/23 - 6/01/23 0.00E+00 1.16E-15 0.00E+00 5.95E+05

<MDA

<MDA 11005621MA1 060123 7/6/2023 14:55 6/01/23 - 7/06/23 8.25E-17 9.56E-16 4.96E-08 8.60E+05

<MDA

<MDA 11005621MA1 010323 2/1/2023 11:50 01/03/23 - 02/01/23 4.39E-15 3.32E-15 1.41E-06 7.31E+05 3.21E-09 0.146%

11005621MA1 020123 3/3/2023 10:47 2/01/203 - 3/03/23 4.75E-15 3.02E-15 1.49E-06 7.29E+05 3.46E-09 0.158%

11005621MA1 030323 4/3/2023 14:25 3/03/23 - 4/03/23 4.97E-15 3.47E-15 1.52E-06 5.04E+05 2.50E-09 0.166%

11005621MA1 040323 5/4/2023 14:09 4/03/23 - 5/04/23 6.10E-16 9.03E-15 1.35E-07 1.08E+05

<MDA

<MDA 11005621MA1 050423 6/1/2023 15:28 5/04/23 - 6/01/23 6.58E-16 7.67E-15 1.49E-07 5.95E+05

<MDA

<MDA 11005621MA1 060123 7/6/2023 14:55 6/01/23 - 7/06/23 4.61E-16 6.33E-15 1.40E-07 8.60E+05

<MDA

<MDA 11005621MA2 010323 2/1/2023 11:55 01/03/23 - 02/01/23 1.22E-16 1.63E-16 9.91E-08 7.47E+05

<MDA

<MDA 11005621MA2 020123 3/3/2023 10:52 2/01/203 - 3/03/23 6.20E-17 1.72E-16 6.76E-08 5.01E+05

<MDA

<MDA 11005621MA2 030323 4/3/2023 14:27 3/03/23 - 4/03/23 0.00E+00 2.04E-16 0.00E+00 5.04E+05

<MDA

<MDA 11005621MA2 040323 5/4/2023 14:15 4/03/23 - 5/04/23 1.84E-17 1.07E-15 2.25E-08 6.24E+05

<MDA

<MDA 11005621MA2 050423 6/1/2023 15:35 5/04/23 - 6/01/23 2.08E-17 1.21E-15 2.25E-08 5.89E+05

<MDA

<MDA 11005621MA2 060123 7/6/2023 14:59 6/01/23 - 7/06/23 7.26E-18 9.63E-16 2.25E-08 7.82E+05

<MDA

<MDA 11005621MA2 010323 2/1/2023 11:55 01/03/23 - 02/01/23 6.66E-15 3.20E-15 1.63E-06 7.47E+05 4.98E-09 0.222%

11005621MA2 020123 3/3/2023 10:52 2/01/203 - 3/03/23 7.45E-15 3.38E-15 1.66E-06 5.01E+05 3.73E-09 0.248%

11005621MA2 030323 4/3/2023 14:27 3/03/23 - 4/03/23 6.46E-15 4.00E-15 1.56E-06 5.04E+05 3.25E-09 0.215%

11005621MA2 040323 5/4/2023 14:15 4/03/23 - 5/04/23 3.88E-16 7.11E-15 1.26E-07 6.24E+05

<MDA

<MDA 11005621MA2 050423 6/1/2023 15:35 5/04/23 - 6/01/23 7.51E-16 8.03E-15 1.53E-07 5.89E+05

<MDA

<MDA 11005621MA2 060123 7/6/2023 14:59 6/01/23 - 7/06/23 2.98E-16 6.38E-15 1.31E-07 7.82E+05

<MDA

<MDA 1100-562-1MA1 Container Receipt and Dispatch Building -1100 (CRDB 1100) Exhaust (FHGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 1100-562-1MA2 Gross Alpha Gross Beta Gross Alpha 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-233/234 1st Qtr 2023 1.77E-16 8.07E-17 8.17E-17 6.33E-17 0.00 Uranium-235/236 1st Qtr 2023 1.71E-17 2.90E-17 2.91E-17 4.93E-17 Result Below MDC Uranium-238 1st Qtr 2023 1.88E-16 8.03E-17 8.14E-17 4.38E-17 0.00 Uranium-233/234 2nd Qtr 2023 2.72E-16 9.17E-17 9.38E-17 3.55E-17 0.00 Uranium-235/236 2nd Qtr 2023 1.68E-17 2.56E-17 2.57E-17 3.83E-17 Result Below MDC Uranium-238 2nd Qtr 2023 2.04E-16 7.90E-17 8.03E-17 3.89E-17 0.00 Uranium-233/234 1st Qtr 2023 9.74E-17 5.75E-17 5.79E-17 4.00E-17 0.00 Uranium-235/236 1st Qtr 2023 1.89E-17 2.88E-17 2.89E-17 4.30E-17 Result Below MDC Uranium-238 1st Qtr 2023 2.64E-16 9.54E-17 9.72E-17 3.99E-17 0.00 Uranium-233/234 2nd Qtr 2023 1.73E-16 7.26E-17 7.36E-17 3.87E-17 0.00 Uranium-235/236 2nd Qtr 2023 2.42E-17 3.13E-17 3.13E-17 4.35E-17 Result Below MDC Uranium-238 2nd Qtr 2023 1.57E-16 6.93E-17 7.02E-17 4.15E-17 0.00 1/3/23 - 4/3/23 7/6/2023 Result Below MDC 0.01%

4/3/2023 4/3/23 - 7/6/23 Result Below MDC

% of Table 2 of Appendix B to 10 CFR 20 Values 1.56E+06 2.00E+06 0.01%

Result Below MDC 0.01%

7/6/2023 4/3/23 - 7/6/23 1/3/23 - 4/3/23 1100-562-1MA1 1100-562-1MA2 0.01%

1.75E+06 0.00%

0.01%

1.96E+06 Result Below MDC 4/3/2023 Container Receipt and Dispatch Building -1100 (CRDB 1100) Fume Hood Exhaust (FHGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 0.01%

0.01%

Notes: 1100-562-1MA2 totalized stack volume collected from redundant monitor 1100-562-1MA1 for filter 3/02/2023 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, 2023 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 010323 2/1/2023 11:57 01/03/23 - 02/01/23 3.84E-16 1.72E-16 1.71E-07 2.95E+07 1.13E-08 0.013%

11005622MA1 020123 3/3/2023 10:59 2/01/203 - 3/03/23 1.25E-16 1.68E-16 9.91E-08 3.08E+07

<MDA

<MDA 11005622MA1 030323 4/3/2023 14:39 3/03/23 - 4/03/23 5.35E-16 1.61E-16 2.07E-07 3.19E+07 1.71E-08 0.018%

11005622MA1 040323 5/4/2023 11:22 4/03/23 - 5/04/23

-7.19E-19 1.10E-15 2.25E-08 3.13E+07

<MDA

<MDA 11005622MA1 050423 6/1/2023 15:20 5/04/23 - 6/01/23 6.32E-17 1.22E-15 3.90E-08 2.89E+07

<MDA

<MDA 11005622MA1 060123 7/6/2023 15:01 6/01/23 - 7/06/23 1.72E-17 1.00E-15 2.25E-08 1.90E+07

<MDA

<MDA 11005622MA1 010323 2/1/2023 11:57 01/03/23 - 02/01/23 4.90E-15 3.38E-15 1.45E-06 2.95E+07 1.44E-07 0.163%

11005622MA1 020123 3/3/2023 10:59 2/01/203 - 3/03/23 4.97E-15 3.29E-15 1.47E-06 3.08E+07 1.53E-07 0.166%

11005622MA1 030323 4/3/2023 14:39 3/03/23 - 4/03/23 5.75E-15 3.15E-15 1.56E-06 3.19E+07 1.83E-07 0.192%

11005622MA1 040323 5/4/2023 11:22 4/03/23 - 5/04/23 5.15E-16 7.29E-15 1.49E-07 3.13E+07

<MDA

<MDA 11005622MA1 050423 6/1/2023 15:20 5/04/23 - 6/01/23 6.32E-16 8.10E-15 1.44E-07 2.89E+07

<MDA

<MDA 11005622MA1 060123 7/6/2023 15:01 6/01/23 - 7/06/23 3.61E-16 6.62E-15 1.26E-07 1.90E+07

<MDA

<MDA 11005622MA2 010323 2/1/2023 11:59 01/03/23 - 02/01/23 6.84E-16 3.07E-16 1.71E-07 2.84E+07 1.94E-08 0.023%

11005622MA2 020123 3/3/2023 11:04 2/01/203 - 3/03/23 0.00E+00 2.72E-16 0.00E+00 3.11E+07

<MDA

<MDA 11005622MA2 030323 4/3/2023 14:41 3/03/23 - 4/03/23 9.64E-17 2.68E-16 6.76E-08 3.24E+07

<MDA

<MDA 11005622MA2 040323 5/4/2023 11:26 4/03/23 - 5/04/23 3.19E-17 1.86E-15 2.25E-08 3.08E+07

<MDA

<MDA 11005622MA2 050423 6/1/2023 15:25 5/04/23 - 6/01/23 6.58E-17 1.91E-15 3.19E-08 1.47E+07

<MDA

<MDA 11005622MA2 060123 7/6/2023 15:05 6/01/23 - 7/06/23 8.13E-17 1.57E-15 3.90E-08 3.11E+07

<MDA

<MDA 11005622MA2 010323 2/1/2023 11:59 01/03/23 - 02/01/23 9.09E-15 6.00E-15 1.47E-06 2.84E+07 2.58E-07 0.303%

11005622MA2 020123 3/3/2023 11:04 2/01/203 - 3/03/23 7.38E-15 5.33E-15 1.43E-06 3.11E+07 2.29E-07 0.246%

11005622MA2 030323 4/3/2023 14:41 3/03/23 - 4/03/23 7.62E-15 5.25E-15 1.45E-06 3.24E+07 2.47E-07 0.254%

11005622MA2 040323 5/4/2023 11:26 4/03/23 - 5/04/23 1.24E-15 1.23E-14 1.58E-07 3.08E+07

<MDA

<MDA 11005622MA2 050423 6/1/2023 15:25 5/04/23 - 6/01/23 8.88E-16 1.27E-14 1.35E-07 1.47E+07

<MDA

<MDA 11005622MA2 060123 7/6/2023 15:05 6/01/23 - 7/06/23 7.58E-16 1.04E-14 1.40E-07 3.11E+07

<MDA

<MDA Gross Alpha 1100-562-2MA2 1100-562-2MA1 Gross Alpha Gross Beta Gross Beta Container 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-233/234 1st Qtr 2023 2.83E-16 8.91E-17 9.13E-17 2.82E-17 2.61E-08 Uranium-235/236 1st Qtr 2023 5.01E-17 4.35E-17 4.36E-17 5.00E-17 0.00 Uranium-238 1st Qtr 2023 2.50E-16 8.41E-17 8.60E-17 4.05E-17 0.00E+00 Uranium-233/234 2nd Qtr 2023 2.44E-16 8.39E-17 8.57E-17 2.92E-17 0.00 Uranium-235/236 2nd Qtr 2023 8.64E-18 2.40E-17 2.40E-17 5.18E-17 Result Below MDC Uranium-238 2nd Qtr 2023 1.68E-16 7.00E-17 7.10E-17 4.19E-17 0.00 Uranium-233/234 1st Qtr 2023 6.76E-16 1.86E-16 1.92E-16 5.71E-17 6.21E-08 Uranium-235/236 1st Qtr 2023 8.84E-17 7.67E-17 7.70E-17 8.83E-17 0.00 Uranium-238 1st Qtr 2023 4.96E-16 1.57E-16 1.61E-16 5.70E-17 0.00E+00 Uranium-233/234 2nd Qtr 2023 2.52E-16 1.02E-16 1.03E-16 4.23E-17 0.00 Uranium-235/236 2nd Qtr 2023 0.00E+00 3.47E-17 3.47E-17 7.50E-17 Result Below MDC Uranium-238 2nd Qtr 2023 2.11E-16 9.26E-17 9.38E-17 4.22E-17 0.00 7.92E+07 0.008%

4/3/2023 7/6/2023 4/3/2023 1100-562-2MA2 Container Receipt and Dispatch Building -1100 (CRDB 1100) Local Extract Exhaust (LXGEVS) Gaseous Effluent Vent System-Gross Alpha & Beta 0.002%

1100-562-2MA1 1/3/23 - 4/3/23 Result Below MDC 0.007%

Result Below MDC 9.19E+07 0.003%

0.008%

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

4/3/23 - 7/6/23 4/3/23 - 7/6/23 0.008%

9.21E+07 0.017%

0.023%

7/6/2023 1/3/23 - 4/3/23 7.66E+07 0.009%

Notes: None

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.

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