SVP-21-023, Annual Radioactive Effluent Release Report
| ML21119A121 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 04/29/2021 |
| From: | Exelon Generation Co |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML21119A119 | List: |
| References | |
| SVP-21-023 | |
| Download: ML21119A121 (78) | |
Text
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents - Summation of all Releases Period: January - December 2020 Unit: 1 & 2 A. Fission & Activation Gases Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Est. Total Error %
- 1. Total Release Ci 1.53E+01 1.66E+01 2.51E+01 3.15E+01 8.85E+01 12.7
- 2. Average release rate for the period µCi/sec 1.95E+00 2.11E+00 3.16E+00 3.98E+00
- 3. Percent of ODCM limit (1) % 6.66E-03 6.90E-03 1.09E-02 1.23E-02
% 3.64E-04 3.55E-04 5.10E-04 8.83E-04 B. Iodine
- 1. Total Iodine - 131 Ci 2.86E-05 3.05E-05 4.32E-05 <LLD 1.02E-04 41.7
- 2. Average release rate for the period µCi/sec 3.64E-06 3.87E-06 5.44E-06 <LLD
- 3. Percent of ODCM limit % N/A (2) N/A (2) N/A (2) N/A (2)
C. Particulates (3)
- 1. Particulates with half-lives >8 days Ci 5.89E-04 1.03E-03 1.34E-04 2.04E-04 1.96E-03 I 32.2 I
- 2. Average release rate for the period µCi/sec 7.49E-05 1.31E-04 1.68E-05 2.56E-05
- 3. Percent of ODCM limit % N/A (2) N/A (2) N/A (2) N/A (2)
- 4. Gross alpha radioactivity Ci <LLD (4) <LLD (4) <LLD (4) <LLD (4)
D. Tritium
- 1. Total Release Ci 1.87E+01 2.12E+01 2.17E+01 2.17E+01 8.33E+01 6.3 2.Average release rate for the period µCi/sec 2.38E+00 2.69E+00 2.72E+00 2.73E+00
- 3. Percent of ODCM limit % N/A (2) N/A (2) N/A (2) N/A (2)
E. Carbon - 14
- 1. Total Release Ci 7.29E+00 6.79E+00 7.60E+00 7.58E+00 2.93E+01
- 2. Average release rate for the period µCi/sec 9.27E-01 8.64E-01 9.56E-01 9.54E-01
- 3. Percent of ODCM Limit % N/A (2) N/A (2) N/A (2) N/A (2)
F. Iodine 131 & 133, Tritium, Particulate, and C-14
- 1. Percent of ODCM Organ Dose Limit % 6.85E-01 6.43E-01 7.03E-01 7.04E-01 (1) % Noble gas gamma/noble gas beta dose limits (2) Percent of ODCM Limit is captured in aggregate in section F (3) Nuclides with less than 8-day half-lives are not included per the ODCM, with the exception of La-140 and Mo-99 (4) Gaseous Effluent LLDs reported on page 9 of 78 Page 1 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Main Chimney (Elevated) Continuous Mode Period: January - December 2020 Unit: 1 & 2 Continuous Mode Nuclides Released Jan - Mar Apr - Jun Jul - Sep Oct - Dec Total
- 1. FISSION AND ACTIVATION GASES: Curies Kr-85 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Kr-85m 1.78E-01 9.54E-01 1.78E+00 3.41E+00 6.32E+00 Kr-87 3.41E-01 2.58E-01 2.85E-01 4.18E-01 1.30E+00 Kr-88 2.11E-01 6.09E-01 1.51E+00 3.97E+00 6.30E+00 Xe-133 7.44E-01 1.67E+00 2.46E+00 3.62E+00 8.49E+00 Xe-135 3.09E-01 2.32E-01 2.36E-01 6.84E-01 1.46E+00 Xe-135m 2.44E+00 1.84E+00 1.85E+00 1.73E+00 7.86E+00 Xe-138 9.42E+00 7.07E+00 6.93E+00 6.92E+00 3.03E+01 Ar-41 1.71E+00 3.99E+00 1.01E+01 7.93E+00 2.37E+01 Total for Period 1.54E+01 1.66E+01 2.52E+01 2.87E+01 8.58E+01
- 2. IODINES: Curies I-131 2.86E-05 3.05E-05 4.32E-05 <LLD 1.02E-04 I-133 9.18E-04 1.49E-04 4.32E-04 1.45E-04 1.64E-03 I-135 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Total for Period 9.47E-04 1.80E-04 4.75E-04 1.45E-04 1.75E-03
- 3. PARTICULATES WITH HALF-LIVES > 8 DAYS (2): Curies Cr-51 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Mn-54 4.25E-05 <LLD (1) <LLD (1) <LLD (1) 4.25E-05 Fe-55 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Fe-59 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Co-58 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Co-60 2.62E-04 6.50E-05 4.51E-05 1.92E-05 3.91E-04 Ni-63 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Zn-65 3.44E-05 <LLD (1) <LLD (1) <LLD (1) 3.44E-05 Sr-89 9.46E-05 6.67E-05 <LLD (1) 2.41E-05 1.85E-04 Sr-90 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Zr/Nb-95(3) <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Mo-99 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ag-110m <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Cs-134 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Cs-137 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ba/La -140(3) 4.02E-05 1.02E-05 <LLD (1) <LLD (1) 5.04E-05 Ce-141 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ce-144 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Total for Period 4.74E-04 1.42E-04 4.51E-05 4.33E-05 7.04E-04
- 5. TRITIUM: Curies H-3 1.55E+01 1.73E+01 1.81E+01 1.84E+01 6.93E+01
- 6. GROSS ALPHA: Curies Gross Alpha <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
(1) Gaseous LLDs reported on page 9 of 78 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is 1/2 of total Page 2 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Main Chimney (Elevated) Batch Mode Period: January - December 2020 Unit: 1 & 2 Batch Mode (1)
Nuclides Released Jan - Mar Apr - Jun Jul - Sep Oct - Dec Total
- 1. FISSION AND ACTIVATION GASES: Curies Kr-85 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Kr-85m N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Kr-87 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Kr-88 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-133 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-135 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-135m N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-138 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ar-41 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Total for Period N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
I-133 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
I-135 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Total for Period N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
- 3. PARTICULATES WITH HALF-LIVES > 8 DAYS (2): Curies Cr-51 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Mn-54 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Fe-55 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Fe-59 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Co-58 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Co-60 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ni-63 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Zn-65 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Sr-89 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Sr-90 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Zr/Nb-95(3) N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Mo-99 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ag-110m N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Cs-134 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Cs-137 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ba/La -140(3) N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ce-141 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ce-144 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Total for Period N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
- 5. TRITIUM: Curies H-3 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
- 6. GROSS ALPHA: Curies Gross Alpha N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
(1) Quad Cities performed no Gaseous Batch Releases in 2020 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is 1/2 of total Page 3 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Reactor Vent (Mixed Mode) Continuous Mode Period: January - December 2020 Unit: 1 & 2 Continuous Mode Nuclides Released Jan - Mar Apr - Jun Jul - Sep Oct - Dec Total
- 1. FISSION AND ACTIVATION GASES: Curies Kr-85 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Kr-85m <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Kr-87 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Kr-88 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Xe-133 <LLD (1) <LLD (1) <LLD (1) 2.86E+00 2.86E+00 Xe-135 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Xe-135m <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Xe-138 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ar-41 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Total for Period <LLD (1) <LLD (1) <LLD (1) 2.86E+00 2.86E+00
I-133 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
I-135 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Total for Period <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
- 3. PARTICULATES WITH HALF-LIVES > 8 DAYS (2): Curies Cr-51 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Mn-54 2.37E-06 1.42E-04 2.59E-05 3.03E-05 2.01E-04 Fe-55 <LLD (1) 4.03E-04 <LLD (1) <LLD (1) 4.03E-04 Fe-59 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Co-58 <LLD (1) 1.62E-05 <LLD (1) <LLD (1) 1.62E-05 Co-60 6.60E-05 2.85E-04 6.29E-05 1.30E-04 5.44E-04 Ni-63 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Zn-65 <LLD (1) 3.06E-05 <LLD (1) <LLD (1) 3.06E-05 Sr-89 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Sr-90 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Zr/Nb-95(3) <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Mo-99 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ag-110m <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Cs-134 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Cs-137 6.63E-06 <LLD (1) <LLD (1) <LLD (1) 6.63E-06 Ba/La-140(3) <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ce-141 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ce-144 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Total for Period 7.50E-05 8.77E-04 8.88E-05 1.60E-04 1.20E-03
- 5. TRITIUM: Curies H-3 3.23E+00 3.86E+00 3.54E+00 3.34E+00 1.40E+01
- 6. GROSS ALPHA: Curies Gross Alpha <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
(1) Gaseous LLDs reported on page 9 of 78 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is 1/2 of total Page 4 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Reactor Vent (Mixed Mode) Batch Mode Period: January - December 2020 Unit: 1 & 2 Batch Mode (1)
Nuclides Released Jan - Mar Apr - Jun Jul - Sep Oct - Dec Total
- 1. FISSION AND ACTIVATION GASES: Curies Kr-85 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Kr-85m N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Kr-87 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Kr-88 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-133 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-135 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-135m N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Xe-138 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ar-41 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Total for Period N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
I-133 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
I-135 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Total for Period N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
- 3. PARTICULATES WITH HALF-LIVES > 8 DAYS (2): Curies Cr-51 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Mn-54 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Fe-55 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Fe-59 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Co-58 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Co-60 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ni-63 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Zn-65 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Sr-89 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Sr-90 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Zr/Nb-95(3) N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Mo-99 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ag-110m N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Cs-134 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Cs-137 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ba/La-140(3) N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ce-141 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Ce-144 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
Total for Period N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
- 5. TRITIUM: Curies H-3 N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
- 6. GROSS ALPHA: Curies Gross Alpha N/A (1) N/A (1) N/A (1) N/A (1) N/A (1)
(1) Quad Cities Station performed no Gaseous Batch Releases in 2020 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is 1/2 of total Page 5 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Liquid Effluents - Summation of all Releases Period: January - December 2020 Unit: 1 & 2 Est. Total A. Fission & Activation Products Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Error %
- 1. Total Release (not including Tritium, 2.45E-03 <LLD (2) <LLD (2) <LLD (2) 2.45E-03 4.8 Ci gases & alpha)
- 2. Average diluted concentration 9.01E-12 <LLD (2) <LLD (2) <LLD (2)
µCi/mL during period
- 3. Percent of acceptable limit (1) WB 2.39E-02 <LLD (2) <LLD (2) <LLD (2)
Organ 1.14E-02 <LLD (2) <LLD (2) <LLD (2)
- 4. Maximum diluted concentration 2.64E-09 <LLD (2) <LLD (2) <LLD (2)
µCi/mL during batch discharges B. Tritium
- 1. Total Release Ci 4.58E-01 1.09E-01 8.11E-02 5.77E-02 7.06E-01 I 6.3 I
- 2. Average diluted concentration 1.68E-09 2.67E-10 1.65E-10 1.68E-10
µCi/mL during period
- 3. Percent of acceptable limit % 5.60E-05 8.90E-06 5.50E-06 5.60E-06 C. Dissolved & Entrained Noble Gases
- 1. Total Release Ci <LLD (2) <LLD (2) <LLD (2) <LLD (2) <LLD (2) I 4.8 I
- 2. Average diluted concentration <LLD (2) <LLD (2) <LLD (2) <LLD (2)
µCi/mL during period
- 3. Percent of acceptable limit % 000E+00 000E+00 000E+00 000E+00 D. Gross Alpha Activity
- 1. Total Release Ci <LLD (2) <LLD (2) <LLD (2) <LLD (2) <LLD (2) 14.6 E. Volume of Waste Released (prior to Liters 6.81E+05 2.84E+06 2.24E+06 1.30E+06 7.06E+06 dilution)
F. Volume of Dilution Water Used Liters 2.72E+11 4.07E+11 4.93E+11 3.43E+11 1.52E+12 During Period (1) Whole body/organ (ODCM)
(2) Liquid LLDs reported on page 10 of 78 Page 6 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Liquid Effluents Release Point Mississippi River Continuous Mode Period: January - December 2020 Unit: 1 & 2 Continuous Mode Nuclides Released Jan- Mar Apr - Jun Jul - Sep Oct - Dec Total
- 1. FISSION AND ACTIVATION PRODUCTS: Curies Cr-51 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Mn-54 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Fe-55 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Fe-59 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Co-58 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Co-60 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ni-63 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Zn-65 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Sr-89 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Sr-90 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Zr/Nb-95 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Mo-99 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ag-110m <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Cs-134 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Cs-137 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ba/La-140 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ce-141 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Ce-144 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Total for Period <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
- 2. DISSOLVED AND ENTRAINED NOBLE GASES: Curies Xe-133 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Xe-135 <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
Total for Period <LLD (1) <LLD (1) <LLD (1) <LLD (1) <LLD (1)
- 3. TRITIUM: Curies H-3 2.05E-02 1.09E-01 8.11E-02 5.77E-02 2.68E-01 Total for Period 2.05E-02 1.09E-01 8.11E-02 5.77E-02 2.68E-01 (1) Liquid LLDs reported on page 10 of 78 Page 7 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Liquid Effluents Release Point Mississippi River Batch Mode River Discharge Tank Period: January - December 2020 Unit: 1 & 2 Batch Mode (2)
Nuclides Released Jan- Mar Apr - Jun Jul - Sep Oct - Dec Total
- 1. FISSION AND ACTIVATION PRODUCTS: Curies Cr-51 Mn-54 6.68E-05 N/A (2) N/A (2) N/A (2) 6.68E-05 Fe-55 3.56E-04 N/A (2) N/A (2) N/A (2) 3.56E-04 Co-58 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Co-60 8.63E-04 N/A (2) N/A (2) N/A (2) 8.63E-04 Ni-63 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Sb-124 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Sb-125 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Zn-65 1.15E-04 N/A (2) N/A (2) N/A (2) 1.15E-04 Sr-89 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Sr-90 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Zr/Nb-95 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Mo-99 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Ag-110m <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Cs-134 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Cs-137 1.04E-03 N/A (2) N/A (2) N/A (2) 1.04E-03 Ba/La-140 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Ce-141 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Ce-144 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Total for Period 2.44E-03 N/A (2) N/A (2) N/A (2) 2.44E-03
- 2. DISSOLVED AND ENTRAINED NOBLE GASES: Curies Xe-133 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Xe-135 <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
Total for Period <LLD (1) N/A (2) N/A (2) N/A (2) <LLD (1)
- 3. TRITIUM: Curies H-3 4.38E-01 N/A (2) N/A (2) N/A (2) 4.38E-01 Total for Period 4.38E-01 N/A (2) N/A (2) N/A (2) 4.38E-01 (1) Liquid LLDs reported on page 10 of 78 (2) No batch releases performed in Q2, Q3, or Q4 Page 8 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary GASEOUS EFFLUENT LLDS (Most restrictive)
Continuous Mode NUCLIDE LOWER LIMIT OF DETECTION (LLDS) UNIT LLD VALLUE ODCM REQUIRED LLD
- 1. Fission Gases Ar-41 µCi/cc 3.11E-08 NONE Kr-85 µCi/cc 4.07E-06 NONE Kr-85m µCi/cc 1.31E-08 NONE Kr-87 µCi/cc 4.92E-08 1.00E-04 Kr-88 µCi/cc 5.08E-08 1.00E-04 Xe-133 µCi/cc 2.40E-08 1.00E-04 Xe-133m µCi/cc 9.23E-08 1.00E-04 Xe-135 µCi/cc 1.17E-08 1.00E-04 Xe-135m µCi/cc 8.01E-07 NONE Xe-138 µCi/cc 3.94E-06 1.00E-04 NUCLIDE LOWER LIMIT OF DETECTION (LLDs) UNIT LLD VALUE ODCM REQUIRED LLD*
- 2. Iodines I-131 µCi/cc 5.71E-13 1.00E-12 I-133 µCi/cc 7.05E-12 1.00E-10 I-135 µCi/cc 2.98E-09 NONE NUCLIDE LOWER LIMIT OF DETECTION (LLDs) UNIT LLD VALUE ODCM REQUIRED LLD*
- 3. Particulates, Tritium, Gross Alpha H-3 µCi/cc 1.16E-11 1.00E-06 Cr-51 µCi/cc 3.21E-12 NONE Mn-54 µCi/cc 4.21E-13 NONE Fe-55 µCi/cc 1.24E-12 1.00E-11 Fe-59 µCi/cc 1.09E-12 1.00E-11 Co-58 µCi/cc 4.17E-13 1.00E-11 Co-60 µCi/cc 8.79E-13 1.00E-11 Zn-65 µCi/cc 1.26E-12 NONE Ni-63 µCi/cc 1.89E-13 NONE Sr-89 µCi/cc 1.84E-13 NONE Sr-90 µCi/cc 4.59E-14 1.00E-11 Nb-95 µCi/cc 3.04E-13 1.00E-11 Zr-95 µCi/cc 6.68E-13 1.00E-11 Mo-99 µCi/cc 8.00E-12 1.00E-11 Ag-110m µCi/cc 4.16E-13 1.00E-11 Cs-134 µCi/cc 4.29E-13 1.00E-11 Cs-137 µCi/cc 4.70E-13 1.00E-11 Ba-140 µCi/cc 1.95E-12 1.00E-11 La-140 µCi/cc 2.11E-12 NONE Ce-141 µCi/cc 5.77E-13 NONE Ce-144 µCi/cc 2.24E-12 1.00E-11 Gross Alpha µCi/cc 5.42E-14 1.00E-11
- ODCM REC LLDs for weekly samples. These may be increased by a factor of 10 for daily samples Page 9 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary LIQUID EFFLUENT LLDS (Most restrictive)
NUCLIDE LOWER LIMITS OF DETECTION (LLDs) UNIT LLD VALUE ODCM REQUIRED LLD
- 1. Liquids H-3 µCi/mL 1.25E-06 1.00E-05 Ar-41 µCi/mL 9.20E-08 NONE Kr-85 µCi/mL 1.66E-05 NONE Kr-85m µCi/mL 6.24E-08 NONE Kr-87 µCi/mL 2.01E-07 1.00E-05 Kr-88 µCi/mL 2.07E-07 1.00E-05 Xe-133 µCi/mL 1.40E-07 1.00E-05 Xe-133m µCi/mL 3.52E-07 1.00E-05 Xe-135 µCi/mL 5.60E-08 1.00E-05 Xe-135m µCi/mL 2.15E-06 NONE Xe-138 µCi/mL 8.85E-06 1.00E-05 Cr-51 µCi/mL 3.39E-07 NONE Mn-54 µCi/mL 6.11E-08 5.00E-07 Fe-55 µCi/mL 5.78E-07 1.00E-06 Fe-59 µCi/mL 1.38E-07 5.00E-07 Co-58 µCi/mL 6.00E-08 5.00E-07 Co-60 µCi/mL 5.91E-08 5.00E-07 Ni-63 µCi/mL 6.11E-07 NONE Zn-65 µCi/mL 1.27E-07 5.00E-07 Sb-124 µCi/mL 5.25E-08 NONE Sb-125 µCi/mL 1.11E-07 NONE Sr-89 µCi/mL 1.84E-13 5.00E-08 Sr-90 µCi/mL 4.59E-14 5.00E-08 Mo-99 µCi/mL 4.38E-07 5.00E-07 Ag-110m µCi/mL 4.92E-08 NONE I-131 µCi/mL 4.78E-08 1.00E-06 Cs-134 µCi/mL 5.29E-08 5.00E-07 Ce-137 µCi/mL 6.85E-08 5.00E-07 Ce-141 µCi/mL 6.99E-08 5.00E-07 Ce-144 µCi/mL 3.31E-07 5.00E-06 Gross Alpha µCi/mL 5.97E-08 1.00E-07 Page 10 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information Discussion of Radiation and Radioactivity (1)
Radiation and Radioactivity All matter is made of atoms. An atom is the smallest part into which matter can be broken down and still maintain all its chemical properties. Nuclear radiation is energy, in the form of waves or particles that is given off by unstable, radioactive atoms. Radioactive material exists naturally and has always been a part of our environment. The earth's crust, for example, contains radioactive uranium, radium, thorium, and potassium.
Some radioactivity is a result of nuclear weapons testing. Examples of radioactive fallout that is normally present in environmental samples are Cesium-137 and Strontium-90. Some examples of radioactive materials released from a nuclear power plant are Cesium-137, Iodine-131, Strontium-90, and Cobalt-60. Radiation dose is measured in units of millirem; much like temperature is measured in degrees. A millirem is a measure of the biological effect of the energy deposited in tissue. The natural and man-made radiation dose received in one year by the average American is 300 to 400 mrem (References 2, 3, 4 in Table - 1 below). Radioactivity is measured in curies. A curie is that amount of radioactive material needed to produce 37,000,000,000 nuclear disintegrations per second.
Sources of Radiation As mentioned previously, naturally occurring radioactivity has always been a part of our environment. Table - 1 shows the sources and doses of radiation from natural and man-made sources.
Table -1 Radiation Sources and Corresponding Doses (1)
NATURAL MAN-MADE Radiation Dose Radiation Dose Source Source (mrem/year) (mrem/year)
Internal, inhalation (2) 228 Medical (3) 300 External, space 33 Consumer (4) 13 (5)
Internal, ingestion 29 Industrial 0.3 External, terrestrial 21 Occupational 0.5 Weapons Fallout <1 Nuclear Power Plants <1 Approximate Total 311 Approximate Total 314 (1) Information from NCRP Reports 160 and 94 (2) Primarily from airborne radon and its radioactive progeny (3) Includes CT (147 mrem), nuclear medicine (77 mrem), interventional fluoroscopy (43 mrem) and conventional radiography and fluoroscopy (33 mrem)
(4) Primarily from cigarette smoking (4.6 mrem), commercial air travel (3.4 mrem), building materials (3.5 mrem), and mining and agriculture (0.8 mrem)
(5) Industrial, security, medical, educational and research (1) This section adapted with permission of Ken Sejkora, Pilgrim Nuclear Power Station Page 11 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information Cosmic radiation from the sun and outer space penetrates the earths atmosphere and continuously interacts with us via rays and charged particles. Some of this cosmic radiation interacts with gases and particles in the atmosphere, making them radioactive in turn. These radioactive byproducts from cosmic ray interaction are referred to as cosmogenic radionuclides. Isotopes such as Beryllium-7 and Carbon-14 are formed in this way.
Exposure to cosmic and cosmogenic sources of radioactivity results in about 33 mrem of radiation does per year.
Additionally, natural radioactivity is in our body and in the food we eat (about 29 mrem/year), the ground we walk on (about 21 mrem/year) and the air we breathe (about 228 mrem/year). The majority of a persons annual dose results from exposure to radon and thoron in the air we breathe. These gases and their radioactive decay products arise from the decay of naturally occurring uranium, thoron and radium in the soil and building products such as brick, stone, and concrete. Radon and thoron levels vary greatly with location, primarily due to changes in the concentration of uranium and thorium in the soil. Residents at some locations in Colorado, New York, Pennsylvania, and New Jersey have a higher annual dose as a result of higher levels of radon/thoron gases in these areas. In total, these various sources of naturally-occurring radiation and radioactivity contribute to a total does of about 311 mrem per year.
In addition to natural radiation, we are normally exposed to radiation from a number of man-made sources. The single largest doses from man-made sources result from the therapeutic and diagnostic applications of x-rays and radiopharmaceuticals. The annual dose to an individual in the U.S. from medical and dental exposure is about 300 mrem. Consumer products, such as televisions and smoke detectors, contribute about 13 mrem/year.
Much smaller does result from weapons fallout (less than 1 mrem/year) and nuclear power plants. Typically, the average person in the United States receives about 314 mrem per year from man-made sources.
Page 12 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information Facility: Quad Cities Nuclear Power Station (QCNPS) January-December 2020 Licensee: Exelon Generation Company
- 1. Regulatory Limits
- a. For Noble Gases Dose rate (per site)
- 1. Less than 500 mrem/year to the whole body
- 2. Less than 3000 mrem/year to the skin Dose Gamma Radiation (per unit)
- 1. Less than or equal to 5 mrad/quarter
- 2. Less than or equal to 10 mrad/year Beta Radiation (per unit)
- 1. Less than or equal to 10 mrad/quarter
- 2. Less than or equal to 20 mrad/year b,c. For Iodine-131, Iodine-133, Carbon-14, and for all radionuclides in particulate form with half-lives greater than 8 days Dose Rate
- 1. Less than 1500 mrem/year (per site)
Dose (per unit)
- 1. Less than or equal to 7.5 mrem/quarter
- 2. Less than or equal to 15 mrem/year
- d. For Liquid (per unit)
- 1. Less than or equal to 1.5 mrem to the whole body during any calendar quarter
- 2. Less than or equal to 5 mrem to any organ during any calendar quarter
- 3. Less than or equal to 3 mrem to the whole body during any calendar year
- 4. Less than or equal to 10 mrem to any organ during any calendar year Page 13 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information
- 2. Maximum Permissible Concentration a,b,c. For Fission and activation gases, iodine and particulates with half-lives greater than 8 days, allowable release limits are calculated by solving equations 2.0-5 and 2.0-6 from the Offsite Dose Calculation Manual Part II Chapter 2. The alarm setpoints are conservatively set at approximately 10% of the 10CFR20 limit.
- d. For liquid effluents, with the exception of tritium and dissolved and entrained noble gases, allowable release limits are calculated by solving equations 2.0-1 and 2.0-2 from the Offsite Does Calculation Manual Part II Chapter 2. The MPC values used for the monitors were as follows:
Radwaste discharge 5.00E-06 µCi/ml Service water 1.00E-05 µCi/ml The allowable release limits for tritium and dissolved and entrained noble gases are as follows:
Tritium: 3.00E-03 µCi/ml taken from Reg Guide 1.21 Dissolved and Entrained Noble Gases: 2.00E-04 µCi/ml taken from NUREG 1302
- 3. Average Energy The average gamma energy used to calculate the alarm setpoints for the noble gas monitors are as follows:
9.48E-01 MeV for Quarter 1 9.75E-01 MeV for Quarter 2 9.64E-01 MeV for Quarter 3 9.56E-01 MeV for Quarter 4
- 4. Measurements for Approximations of Total Radioactivity
- a. Fission and Activation Gases
- b. Iodines
- c. Particulates a,b,c. The main chimney and reactor building ventilation exhaust systems are continually monitored for iodines and particulates. These samples are pulled every 7 days and analyzed by gamma isotopic. The particulate papers are composited every 31 days and sent to a vendor for Sr-89/90, Fe-55, Ni-63, and gross alpha analysis. Noble gas grab samples are pulled and analyzed by gamma isotopic weekly. Tritium samples are pulled and analyzed every month.
The Sr-89/90, Fe-55, Ni-63 and gross alpha curies released values reported are actual. On a real time basis, the portion of the percent of applicable limit for these contributors is reported based on projections using the previous available data. The actual results are obtained by editing the ODCM software inputs when the vendor results become available. Therefore, the percent of applicable limits in this report are actual.
Page 14 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information The continuous chart recorders for the monitors on the release points are reviewed for spikes and the activity released is calculated. An additional calculated activity for noble gases is added to the main chimney or reactor building release each month if applicable. This calculation is done because most of the grab samples show less than the lower limit of detection due to the low amount of activity and the large dilution flow at the sample point. The calculation takes into account the normal offgas train and the gland steam contribution to the release.
The average flow at the release points is used to calculate the curies released.
There are no ground level releases from QCNPS. All monitored releases are considered either elevated or mixed mode.
- d. Carbon-14 Quad Cities has estimated its Carbon-14 generation and release in accordance with EPRI Technical Report 1021106, Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents.
The Quad Cities estimate of 2.93E+01 Ci of Carbon-14 and the resultant 2.93E+01 Ci 14CO2 released is based upon a normalized Carbon-14 production rate of 5.10E+00 Ci/GWTh-yr, a gaseous release fraction of 1.00, a Carbon-14 CO2 fraction of 1.00, a reactor power rating of 2957 MWTh/unit for 2 units, and a calculated Effective Full Power days based upon Total Core Therms data. The maximum expected annual dose contribution from Carbon -14 has been calculated to be 2.08E-01 mrem/year organ dose and 4.15E-02 mrem/year total body dose. This was obtained using maximum gross thermal capacity maintained for 365 days for both units.
- e. Liquid Effluents River Discharge Tanks, when performed, are analyzed prior to discharge by gamma isotopic. A composite representative portion of this sample is saved. This is composited with other discharges (if applicable), that occurred every 31 days and is analyzed for tritium and gross alpha. The monthly composites are composited quarterly and sent to a vendor for Sr-89/90, Fe-55, and Ni-63 analyses. The discharge bay is sampled every 31 days and analyzed for gamma by isotopic, for tritium and for gross alpha. It is sampled quarterly and sent to a vendor for Sr-89/90, Fe-55, and Ni-63 analysis. On a real time basis, the portion of the percent of applicable limit for these contributors is based on projections using scaling factors.
The actual results are obtained by editing the ODCM software inputs when the vendor results become available. Therefore, the percent of applicable limits in this report are actual. The tank volumes and activities are used to calculate the curies released from the River Discharge Tank. The total water released during the quarter and the activity is used to calculate the diluted activity released at the discharge bay, from batch discharges.
Page 15 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information
- f. Estimated Total Error Percent The estimated total error percents were calculated by taking the square root of the sum of the squares of errors for sampling and measurement parameters.
- g. Less than the Lower Limit of detection (<LLD)
Samples are analyzed such that the Technical Specification LLD requirements are met. When a nuclide is not detected during the quarter, then <LLD is reported. The most conservative LLDs used for counting effluent samples are included in this report.
- 5. Batch Releases
- a. Liquid
- 1. Number of releases: 1
- 2. Total Time: 1.00E+03 minutes
- 3. Maximum Time: 1.00E+03 minutes
- 4. Average Time: 1.00E+03 minutes
- 5. Minimum Time: 1.00E+03 minutes
- 6. Average Stream Flow: 4.57E+01 gallons per minute
- b. Gaseous
- 1. NONE Page 16 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information
- 6. Abnormal Releases
- a. Liquid On March 28, 2018, approximately three to four feet of water was observed in a Radwaste Piping Vault, located adjacent to monitoring well QC-GP-18. Samples were collected from the water in the vault as well as the groundwater in QC-GP-18. Both samples had tritium concentration of approximately 4.5 million pCi/L. Approximately 5,000 gallons of water was pumped from the vault and processed through the Stations Radwaste System on March 28, 2018. Remediation of the groundwater near the RW Pipe Vault began on March 29, 2018 via pumping from monitoring well QC-GP-18 and processing through the Stations Radwaste System.
On March 29, 2018, the station contacted the Illinois Environmental Protection Agency (IEPA) and Illinois Emergency Management Agency (IEMA) to report a release of a radionuclide pursuant to 35 Ill. Adm. Code 1010.202. The station also notified the Nuclear Regulatory Commission (NRC) of these report to state agencies to satisfy 10CFR50.72(b)(2)(xi), notification of the NRC for any event related to the health and safety of the public for which a notification to other government agencies has been or will be made (EN#53299)
The cause of the tritium activity in the vault and QC-GP-18 was determined to be a leaking pipe clamp located within the RW Pipe Vault and degraded seams in the concrete vault which allowed water to seep from the vault into the surrounding groundwater. The pipe clamp was repaired and the concrete/degrade seams in the vault sealed.
On April 2, 2018, an extraction well (RW-1) was installed near the vault and QC-GP-18 to assist in remediating the tritium activity in groundwater. The extraction well began pumping groundwater on April 10, 2018 for processing through the Stations Radwaste System. On May 2, 2018 effluent from RW-1 was routed to the Discharge bay for release. On May 7, 2018 effluent from QC-GP-18 was routed to the Discharge Bay for release. On November 24, 2018, both well remediation pumps were shut down for the winter season.
Remediation of the groundwater tritium activity in vicinity of the RW Pipe Vault resumed on April 16, 2019 via pumping from remediation well QC-RW-1 with pump effluent routed to the Discharge Bay for release. Active pumping for remediation was discontinued for remainder of 2019 on November 6, 2019 due to winter weather. Between April 16, 2019 and November 6, 2019, approximately 1.1 million gallons of groundwater was pumped from the vicinity of the RW Pipe Vault for remediation purposes.
Pumping was resumed from well QC-GP-18 and well QC-RW-1 on March 9, 2020. Remediation activities for QC-GP-18 ceased for the winter season on November 17, 2020. Remediation activities for QC-RW-1 ceased for the winter season on December 21, 2020. Approximately 1.84 million gallons of groundwater was pumped from the vicinity of the RW Pipe Vault for remediation purposes in 2020.
Page 17 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information Upon initiation of routing to the discharge bay, samples were collected from each well on a daily basis to monitor for tritium concentration, gamma spectroscopy, and to create monthly composite samples to be analyzed for gross alpha, Fe-55, Ni-63, Sr-89, and Sr-90. LLDs and sampling requirements for this monitored abnormal release are identical to the requirements listed in the ODCM for routine liquid effluent analysis.
Samples were also obtained at the Discharge Bay outfall and analyzed for the same radionuclides. No samples of the discharge bay outfall showed detectable activity.
During the period that the wells were routed to the discharge bay, only tritium was detected in the well discharge at levels above the required limit of detection. A total of 2.68E-01 Ci of tritium were released to the Mississippi River via this abnormal release. The associated dose impact to members of the public from this abnormal release was calculated to be 4.98E-08 mRem to the Child/Liver dose pathway. The total body dose associated with this abnormal release was calculated to be 4.98E-08 mRem to the Child Total Body pathway. The associated curies and doses due to this release are included in the Summation of All Releases Table (page 6 of this report), Mississippi River Continuous Mode (page 7 of this report) and Radiological Impact on Man (page 18 of this report).
- b. Gaseous
- 1. NONE
- 7. Radiological Impact on Man
- a. Liquid Dose to a Member of the Public for 2020 Total Body: 1.86E-04 mRem (Adult)
Organ: 2.97E-04 mRem (Teen/Liver)
- b. Gaseous Dose to a Member of the Public for 2020 Total Body: 4.41E-02 mRem Noble Gas Skin Dose Rate: 2.19E-03 mRem/year Organ (Particulate/Iodine/C-14/Tritium): 2.05E-01 mrem (Child/Bone)
The Quad Cities calculated annual doses from Carbon-14 releases have been calculated using the methodologies outlines in the ODCM. The resultant estimated releases of Carbon-14 resulted in a dose contribution of 2.02E-01mRem to organ dose (98.5%) and 4.03E-02 mrem to total body dose (91.4%).
Page 18 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Supplemental Information
- c. 40 CFR 190 Dose to a Member of the Public for 2020 Total Body: 7.84E+00 mrem 3.14E+01% of 40CFR190 Limit of 25 mrem/year (Total Body)
Note - The largest component of this dose is attributable to BWR skyshine from Nitrogen-16. 7.79E+00 mrem of this dose was conservatively calculated for the hypothetical maximum exposed member of the public due to BWR skyshine.
Nitrogen-16 (N-16) is a byproduct of Hydrogen addition into the Reactor Coolant System (RCS). Hydrogen addition is performed to maintain RCS chemistry parameters that reduce corrosion potential. Due to its short half-life (7.13 seconds), N-16 is not detectable as a plant effluent as it decays prior to reaching gaseous discharge pathways. Additionally, this dose is conservatively calculated instead of measured because an annual dose of 7.79E+00 mrem is too low to be reliably detected on the environmental dosimetry utilized by the station.
Organ Dose: 2.05E-01 mrem Child/Bone 8.20E-01% of 40CFR190 Limit of 25 mrem/year (Organ Dose)
Thyroid Dose: 5.91E-02 mrem Infant/Thyroid 7.88E-02% of 40CFR190 Limit of 75 mrem/year (Thyroid Dose)
- d. Total Body Doses to the Population and Average Doses to Individuals in the Population from All Receiving-Water-Related-Pathways:
Not applicable for QCNPS. Not required per Quad Cities ODCM.
- e. Total Body Doses to the Population and Average Doses to Individuals in the Population from Gaseous effluents to a distance of 50 miles:
Not applicable for QCNPS. Not required per Quad Cities ODCM.
- f. Doses From Liquid and Gaseous Effluent to Members of the Public Due to Their Activities Inside the Site Boundary for the Record Period:
Not applicable for QCNPS. Any member of the public that is onsite for a significant period will be issued a dosimeter.
- g. Liquid and Gaseous Effluent Radiation Monitors and Instrumentation Unavailability for the Period Beyond the Requirements of the ODCM, Including Sampling Deviation:
- 1. NONE Page 19 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report 10CFR20.1301(a}(1) Compliance Assessment Quad Cities Station Unit One and Unit Two Assessment Period 01/01/2020 - 01/01/2021 10CFR20.1301(a)(1) Limit 100.00 mrem/year Quad Cities Unit 1 1st Quarter 2nd Quarter 3 rd Quarter 4th Quarter Year Total % of Limit TEDE (mrem) 1.02E+00 1.00E+00 9.98E-01 1.0lE+00 4.03E+00 4.03E+00 Quad Cities Unit 2 1st Quarter 2nd Quarter 3 rd Quarter 4th Quarter Year Total % of Limit TEDE (mrem) 9.68E-01 8.16E-01 1.0lE+00 1.02E+00 3.81E+00 3.81E+00 Submitted by: ~
J. Alexander Green Technical Review by:__~ / / , 111 / i i ~ Date: 2 5/1 f !( Z(pZ /
David C. Basham
~
Reviewedby:O&f?Jz) Date: ___,'IP~~-/_2-_I_
Anna L. Wilson Page 20 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Maximum Doses Resulting From Airborne Releases/Compliance Status Quad Cities Station - Unit One/Unit Two Unit One Unit Two 10 CFR 50 APP. I Unit One Unit Two Type of Dose Annual Annual Yearly Objective % of APP. I % of APP. I Gamma Air (mrad) 2.14E-04 2.14E-04 10.0 2.14E-03 2.14E-03 Beta Air (mrad) 1.31E-04 1.31E-04 20.0 6.55E-04 6.55E-04 Organ (mrem) 1.69E-01 1.69E-01 15.0 1.13E+00 1.13E+00 Critical Person Child Child Critical Organ Bone Bone The calculation of the above doses was done by an independent contractor utilizing GASPAR, an NRC approved program. The calculation was done with current year meteorological data and equation multipliers outlined in Reg Guide 1.109 and NUREG 0133.
Page 21 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Extremely Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 2 1 0 0 6 NNE 0 8 0 0 0 0 8 NE 1 6 0 0 0 0 7 ENE 0 4 0 0 0 0 4 E 0 8 4 0 0 0 12 ESE 0 5 12 0 0 0 17 SE 2 8 3 0 0 0 13 SSE 3 8 3 0 0 0 14 S 2 6 5 0 0 0 13 SSW 3 8 10 0 0 0 21 SW 2 3 5 0 0 0 10 WSW 3 7 1 0 0 0 11 W 2 4 9 2 0 0 17 WNW 1 6 14 0 0 0 21 NW 0 4 9 0 0 0 13 NNW 0 5 8 1 0 0 14 Variable 0 0 0 0 0 0 0 Total 19 93 85 4 0 0 201 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 22 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Moderately Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 0 0 0 0 1 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 1 0 0 0 0 1 E 0 0 3 0 0 0 3 ESE 0 3 2 0 0 0 5 SE 1 3 1 0 0 0 5 SSE 0 3 0 0 0 0 3 S 0 1 1 0 0 0 2 SSW 1 2 0 0 0 0 3 SW 2 2 1 0 0 0 5 WSW 0 3 0 0 0 0 3 W 0 3 3 2 0 0 8 WNW 0 1 5 0 0 0 6 NW 0 0 4 0 0 0 4 NNW 2 1 2 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 7 23 22 2 0 0 54 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 23 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Slightly Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 5 1 0 0 8 NNE 0 1 0 0 0 0 1 NE 0 5 8 0 0 0 13 ENE 0 5 1 0 0 0 6 E 0 4 1 0 0 0 5 ESE 0 7 6 0 0 0 13 SE 1 4 0 0 0 0 5 SSE 0 3 2 0 0 0 5 S 2 3 3 0 0 0 8 SSW 0 6 5 0 0 0 11 SW 0 5 2 0 0 0 7 WSW 1 3 2 0 0 0 6 W 1 4 4 6 0 0 15 WNW 0 5 11 3 0 0 19 NW 1 5 7 0 0 0 13 NNW 1 2 2 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 7 64 59 10 0 0 140 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 24 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Neutral - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 42 36 7 0 0 88 NNE 6 21 48 27 0 0 102 NE 3 42 29 0 0 0 74 ENE 3 27 6 0 0 0 36 E 0 30 23 0 0 0 53 ESE 15 24 22 3 0 0 64 SE 21 39 13 0 0 0 73 SSE 10 38 3 0 0 0 51 S 7 14 8 0 0 0 29 SSW 8 11 8 0 0 0 27 SW 8 25 4 4 0 0 41 WSW 12 24 14 5 0 0 55 W 15 61 55 25 10 0 166 WNW 13 61 78 25 0 0 177 NW 6 58 33 3 0 0 100 NNW 11 34 21 1 0 0 67 Variable 0 0 0 0 0 0 0 Total 141 551 401 100 10 0 1203 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 25 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Slightly Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 3 0 0 0 0 7 NNE 3 10 5 0 0 0 18 NE 6 10 1 0 0 0 17 ENE 5 4 0 0 0 0 9 E 3 8 4 0 0 0 15 ESE 10 18 9 0 0 0 37 SE 12 16 2 0 0 0 30 SSE 13 39 2 0 0 0 54 S 6 20 18 0 0 0 44 SSW 8 23 16 0 0 0 47 SW 10 21 11 0 0 0 42 WSW 13 7 7 0 0 0 27 W 14 30 4 0 0 0 48 WNW 5 22 2 0 0 0 29 NW 5 16 0 0 0 0 21 NNW 4 5 0 0 0 0 9 Variable 0 0 0 0 0 0 0 Total 121 252 81 0 0 0 454 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 26 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Moderately Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 0 0 0 0 1 NNE 4 1 0 0 0 0 5 NE 4 1 0 0 0 0 5 ENE 1 0 0 0 0 0 1 E 4 2 0 0 0 0 6 ESE 6 5 0 0 0 0 11 SE 9 2 0 0 0 0 11 SSE 10 13 0 0 0 0 23 S 2 2 0 0 0 0 4 SSW 2 1 0 0 0 0 3 SW 1 0 0 0 0 0 1 WSW 7 0 0 0 0 0 7 W 6 2 0 0 0 0 8 WNW 5 3 0 0 0 0 8 NW 1 1 0 0 0 0 2 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 63 33 0 0 0 0 96 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 27 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Extremely Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 0 0 0 0 0 2 NNE 2 0 0 0 0 0 2 NE 1 0 0 0 0 0 1 ENE 0 0 0 0 0 0 0 E 1 0 0 0 0 0 1 ESE 5 0 0 0 0 0 5 SE 4 0 0 0 0 0 4 SSE 1 3 0 0 0 0 4 S 1 0 0 0 0 0 1 SSW 1 0 0 0 0 0 1 SW 2 0 0 0 0 0 2 WSW 0 0 0 0 0 0 0 W 1 1 0 0 0 0 2 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 21 4 0 0 0 0 25 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 28 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Extremely Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 3 0 0 5 NNE 0 0 2 1 0 0 3 NE 0 0 3 0 0 0 3 ENE 0 0 2 0 0 0 2 E 0 0 2 1 0 0 3 ESE 0 0 0 4 1 0 5 SE 0 1 3 5 0 0 9 SSE 0 0 2 1 0 0 3 S 0 0 4 2 5 0 11 SSW 0 0 4 3 4 0 11 SW 0 0 1 2 0 0 3 WSW 0 0 3 2 0 0 5 W 0 0 0 1 2 0 3 WNW 0 0 1 6 1 0 8 NW 0 0 2 4 1 0 7 NNW 0 0 0 3 0 0 3 Variable 0 0 0 0 0 0 0 Total 0 1 31 38 14 0 84 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12 Page 29 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Moderately Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 1 0 1 NNE 0 0 0 0 0 0 0 NE 0 0 2 3 0 0 5 ENE 0 0 0 0 0 0 0 E 0 0 1 0 0 0 1 ESE 0 0 2 3 0 0 5 SE 0 0 0 3 0 0 3 SSE 0 0 3 4 0 0 7 S 0 0 2 1 1 0 4 SSW 0 1 6 0 2 0 9 SW 0 0 1 5 0 0 6 WSW 0 0 3 0 0 0 3 W 0 0 2 2 1 0 5 WNW 0 0 0 6 2 1 9 NW 0 0 3 6 2 0 11 NNW 0 0 9 2 2 0 13 Variable 0 0 0 0 0 0 0 Total 0 1 34 35 11 1 82 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12 Page 30 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Slightly Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 2 2 1 0 7 NNE 0 0 1 0 1 0 2 NE 0 0 4 7 1 0 12 ENE 0 0 1 1 1 0 3 E 0 0 4 5 0 0 9 ESE 0 1 3 5 1 0 10 SE 0 0 2 3 0 0 5 SSE 0 1 4 2 0 0 7 S 0 0 4 3 1 0 8 SSW 0 0 5 1 1 1 8 SW 0 1 3 3 1 0 8 WSW 0 1 5 0 0 0 6 W 0 0 5 2 3 3 13 WNW 0 1 6 11 5 1 24 NW 0 0 12 5 5 0 22 NNW 0 0 4 1 2 0 7 Variable 0 0 0 0 0 0 0 Total 0 7 65 51 23 5 151 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 12 Page 31 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Neutral - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 11 34 16 4 0 67 NNE 1 3 26 31 33 1 95 NE 3 1 43 38 5 0 90 ENE 4 8 28 11 1 0 52 E 2 5 19 18 2 0 46 ESE 0 3 17 29 14 6 69 SE 3 18 18 16 8 3 66 SSE 2 17 27 25 3 0 74 S 1 13 9 14 9 4 50 SSW 3 10 8 11 10 7 49 SW 7 6 15 13 3 4 48 WSW 3 16 19 15 4 4 61 W 4 21 32 39 17 25 138 WNW 6 27 38 62 39 33 205 NW 3 19 36 46 13 5 122 NNW 1 19 23 9 14 3 69 Variable 0 0 0 0 0 0 0 Total 45 197 392 393 179 95 1301 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 41 Hours of missing stability measurements in all stability classes: 12 Page 32 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Slightly Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 7 1 0 0 12 NNE 1 3 4 0 0 0 8 NE 0 1 9 4 0 0 14 ENE 1 0 4 5 0 0 10 E 1 2 3 2 0 0 8 ESE 0 2 7 11 6 0 26 SE 0 2 10 6 4 1 23 SSE 0 2 3 27 5 1 38 S 1 2 9 23 20 3 58 SSW 2 0 9 13 39 1 64 SW 0 3 10 13 9 2 37 WSW 0 2 11 8 5 0 26 W 2 4 9 15 3 0 33 WNW 1 4 13 9 0 0 27 NW 0 1 6 20 0 0 27 NNW 0 2 5 1 0 0 8 Variable 0 0 0 0 0 0 0 Total 9 34 119 158 91 8 419 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12 Page 33 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Moderately Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 0 0 2 NNE 0 2 1 0 0 0 3 NE 0 0 1 1 0 0 2 ENE 0 2 1 1 0 0 4 E 0 0 0 1 0 0 1 ESE 0 0 3 2 0 0 5 SE 0 0 0 5 0 0 5 SSE 0 1 0 6 0 0 7 S 0 0 1 5 6 1 13 SSW 1 0 3 3 1 0 8 SW 0 1 0 0 0 0 1 WSW 0 2 0 0 0 0 2 W 0 0 3 3 0 0 6 WNW 0 1 8 4 0 0 13 NW 0 0 3 0 0 0 3 NNW 0 0 3 4 0 0 7 Variable 0 0 0 0 0 0 0 Total 1 9 29 35 7 1 82 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12 Page 34 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: January - March 2020 Stability Class - Extremely Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 1 0 0 0 1 SSE 0 0 0 2 0 0 2 S 0 0 0 1 0 0 1 SSW 0 0 0 1 0 0 1 SW 0 0 1 0 0 0 1 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 3 0 0 0 3 NW 0 0 1 0 0 0 1 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 0 7 4 0 0 11 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12 Page 35 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Extremely Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 2 2 0 0 5 NNE 0 2 2 1 0 0 5 NE 1 2 1 0 0 0 4 ENE 0 4 6 0 0 0 10 E 1 4 5 0 0 0 10 ESE 1 9 25 0 0 0 35 SE 2 21 27 0 0 0 50 SSE 0 26 5 0 0 0 31 S 3 11 4 0 0 0 18 SSW 0 16 18 1 0 0 35 SW 1 4 5 0 0 0 10 WSW 1 6 6 1 0 0 14 W 1 10 6 4 0 0 21 WNW 1 4 17 4 0 0 26 NW 1 3 16 1 0 0 21 NNW 0 2 12 4 0 0 18 Variable 0 0 0 0 0 0 0 Total 13 125 157 18 0 0 313 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 36 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Moderately Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 0 0 0 1 NNE 0 2 0 1 0 0 3 NE 0 1 1 0 0 0 2 ENE 0 1 0 0 0 0 1 E 1 4 0 0 0 0 5 ESE 1 11 3 0 0 0 15 SE 0 6 1 0 0 0 7 SSE 0 4 0 0 0 0 4 S 0 1 1 0 0 0 2 SSW 0 5 0 0 0 0 5 SW 0 6 2 0 0 0 8 WSW 0 2 6 0 0 0 8 W 0 3 4 3 0 0 10 WNW 0 1 7 1 0 0 9 NW 0 0 6 0 0 0 6 NNW 0 1 5 2 0 0 8 Variable 0 0 0 0 0 0 0 Total 2 48 37 7 0 0 94 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 37 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Slightly Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 1 1 0 0 4 NNE 0 3 0 0 0 0 3 NE 1 4 4 0 0 0 9 ENE 0 4 7 0 0 0 11 E 1 1 5 0 0 0 7 ESE 0 15 4 0 0 0 19 SE 2 13 5 0 0 0 20 SSE 0 7 0 0 0 0 7 S 0 8 0 0 0 0 8 SSW 0 11 2 0 0 0 13 SW 0 12 2 0 0 0 14 WSW 0 8 4 1 0 0 13 W 0 8 4 1 0 0 13 WNW 0 4 10 4 0 0 18 NW 0 9 8 0 0 0 17 NNW 0 1 3 1 0 0 5 Variable 0 0 0 0 0 0 0 Total 4 110 59 8 0 0 181 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 38 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Neutral - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 17 20 1 0 0 38 NNE 2 9 28 1 0 0 40 NE 1 25 13 0 0 0 39 ENE 3 44 17 0 0 0 64 E 4 25 19 3 0 0 51 ESE 5 33 8 0 0 0 46 SE 5 32 6 0 0 0 43 SSE 12 18 2 0 0 0 32 S 10 9 1 0 0 0 20 SSW 7 16 5 1 0 0 29 SW 3 22 19 3 0 0 47 WSW 5 34 16 1 0 0 56 W 2 40 29 1 0 0 72 WNW 1 30 55 10 0 0 96 NW 2 25 29 7 0 0 63 NNW 2 14 25 4 0 0 45 Variable 0 0 0 0 0 0 0 Total 64 393 292 32 0 0 781 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 39 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Slightly Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 13 2 0 0 0 17 NNE 3 4 1 0 0 0 8 NE 5 5 2 0 0 0 12 ENE 5 21 2 0 0 0 28 E 22 28 0 0 0 0 50 ESE 27 46 0 0 0 0 73 SE 22 20 0 0 0 0 42 SSE 8 5 0 0 0 0 13 S 11 4 0 0 0 0 15 SSW 13 19 6 0 0 0 38 SW 18 29 5 0 0 0 52 WSW 9 22 1 0 0 0 32 W 5 32 2 0 0 0 39 WNW 15 28 2 0 0 0 45 NW 9 16 8 0 0 0 33 NNW 5 5 0 0 0 0 10 Variable 0 0 0 0 0 0 0 Total 179 297 31 0 0 0 507 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 40 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Moderately Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 1 0 0 0 0 5 NNE 2 0 0 0 0 0 2 NE 9 1 0 0 0 0 10 ENE 14 1 0 0 0 0 15 E 17 13 0 0 0 0 30 ESE 18 17 0 0 0 0 35 SE 9 3 0 0 0 0 12 SSE 7 0 0 0 0 0 7 S 5 0 0 0 0 0 5 SSW 6 0 0 0 0 0 6 SW 6 1 0 0 0 0 7 WSW 5 1 0 0 0 0 6 W 10 2 0 0 0 0 12 WNW 10 4 0 0 0 0 14 NW 8 1 0 0 0 0 9 NNW 7 1 0 0 0 0 8 Variable 0 0 0 0 0 0 0 Total 137 46 0 0 0 0 183 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 41 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Extremely Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 0 0 0 0 0 2 NNE 1 0 0 0 0 0 1 NE 7 0 0 0 0 0 7 ENE 5 1 0 0 0 0 6 E 18 2 0 0 0 0 20 ESE 14 0 0 0 0 0 14 SE 4 0 0 0 0 0 4 SSE 9 0 0 0 0 0 9 S 6 0 0 0 0 0 6 SSW 9 0 0 0 0 0 9 SW 5 0 0 0 0 0 5 WSW 5 1 0 0 0 0 6 W 8 1 0 0 0 0 9 WNW 7 0 0 0 0 0 7 NW 1 0 0 0 0 0 1 NNW 4 0 0 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 105 5 0 0 0 0 110 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 42 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Extremely Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 1 0 2 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 1 0 0 1 E 0 0 0 1 0 0 1 ESE 0 0 1 9 1 0 11 SE 0 0 4 12 7 0 23 SSE 0 1 3 14 2 4 24 S 0 0 3 12 1 3 19 SSW 0 0 4 9 2 5 20 SW 0 0 0 3 0 0 3 WSW 0 0 2 2 0 0 4 W 0 0 0 1 0 0 1 WNW 0 1 3 2 2 0 8 NW 0 0 2 4 1 0 7 NNW 0 0 0 3 3 1 7 Variable 0 0 0 0 0 0 0 Total 0 2 22 74 20 13 131 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 43 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Moderately Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 2 0 4 NNE 0 0 1 0 1 0 2 NE 0 0 3 2 0 0 5 ENE 0 0 1 2 0 0 3 E 0 0 6 2 0 0 8 ESE 0 0 3 5 2 0 10 SE 0 1 6 4 3 1 15 SSE 0 1 8 8 3 0 20 S 0 0 5 3 0 0 8 SSW 0 1 7 2 1 3 14 SW 0 0 1 3 1 0 5 WSW 0 1 6 3 0 1 11 W 0 0 6 1 3 1 11 WNW 0 0 4 7 2 5 18 NW 0 0 4 14 2 1 21 NNW 0 0 8 9 0 1 18 Variable 0 0 0 0 0 0 0 Total 0 4 71 65 20 13 173 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 44 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Slightly Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 2 0 0 1 4 NNE 0 0 1 0 1 0 2 NE 0 3 4 2 3 0 12 ENE 0 1 6 0 0 0 7 E 0 1 3 2 0 0 6 ESE 0 2 10 7 2 0 21 SE 0 3 7 7 1 0 18 SSE 0 3 6 3 3 0 15 S 0 1 4 2 1 0 8 SSW 0 4 5 0 1 0 10 SW 0 5 2 3 1 0 11 WSW 0 3 3 7 2 0 15 W 0 5 4 1 7 0 17 WNW 0 3 6 6 5 1 21 NW 0 3 5 8 3 0 19 NNW 0 1 5 3 1 2 12 Variable 0 0 0 0 0 0 0 Total 0 39 73 51 31 4 198 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 45 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Neutral - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 7 10 6 2 1 27 NNE 0 2 21 7 5 0 35 NE 0 3 16 26 9 0 54 ENE 0 4 32 34 0 0 70 E 1 2 16 19 7 0 45 ESE 2 2 21 17 6 3 51 SE 1 8 19 17 6 1 52 SSE 1 11 17 12 8 2 51 S 3 9 16 8 5 0 41 SSW 0 11 15 9 7 4 46 SW 5 17 10 11 4 4 51 WSW 1 12 10 26 9 2 60 W 1 18 13 27 10 0 69 WNW 1 9 16 49 22 1 98 NW 3 5 27 33 23 13 104 NNW 0 4 16 17 17 6 60 Variable 0 0 0 0 0 0 0 Total 20 124 275 318 140 37 914 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 46 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Slightly Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 7 4 2 0 16 NNE 0 0 8 5 0 0 13 NE 1 3 8 2 1 0 15 ENE 0 1 7 8 0 0 16 E 1 2 3 2 0 0 8 ESE 0 2 12 25 8 0 47 SE 2 5 16 43 5 0 71 SSE 1 3 26 8 4 0 42 S 1 7 15 16 1 0 40 SSW 1 1 12 20 7 0 41 SW 2 5 8 19 6 0 40 WSW 0 4 7 15 2 0 28 W 0 3 12 27 0 0 42 WNW 0 2 6 10 0 0 18 NW 1 2 19 15 2 0 39 NNW 0 4 14 4 0 0 22 Variable 0 0 0 0 0 0 0 Total 11 46 180 223 38 0 498 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 47 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Moderately Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 8 5 0 0 16 NNE 0 0 4 3 0 0 7 NE 0 1 2 1 0 0 4 ENE 1 1 2 1 0 0 5 E 0 1 0 2 0 0 3 ESE 0 1 2 10 5 0 18 SE 1 4 5 27 5 0 42 SSE 0 3 5 5 0 0 13 S 1 4 8 6 0 0 19 SSW 0 7 5 6 1 0 19 SW 0 1 2 1 0 0 4 WSW 0 2 5 1 0 0 8 W 0 2 0 2 0 0 4 WNW 0 1 0 3 0 0 4 NW 1 1 3 1 0 0 6 NNW 0 0 9 4 0 0 13 Variable 0 0 0 0 0 0 0 Total 4 32 60 78 11 0 185 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 48 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: April - June 2020 Stability Class - Extremely Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 1 0 0 5 NNE 0 2 2 0 0 0 4 NE 1 0 2 0 0 0 3 ENE 0 0 1 0 0 0 1 E 0 0 2 0 0 0 2 ESE 0 3 0 1 0 0 4 SE 0 0 2 5 1 0 8 SSE 0 0 2 3 0 0 5 S 0 1 8 3 0 0 12 SSW 1 2 9 4 0 0 16 SW 0 0 3 1 0 0 4 WSW 0 2 2 0 0 0 4 W 0 1 0 0 0 0 1 WNW 0 0 1 0 0 0 1 NW 1 0 0 1 0 0 2 NNW 1 0 0 1 0 0 2 Variable 0 0 0 0 0 0 0 Total 4 12 37 20 1 0 74 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 Page 49 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Extremely Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 5 0 0 0 7 NNE 0 0 6 0 0 0 6 NE 0 2 2 0 0 0 4 ENE 0 9 2 0 0 0 11 E 0 6 0 0 0 0 6 ESE 1 10 1 0 0 0 12 SE 2 21 4 0 0 0 27 SSE 2 26 2 0 0 0 30 S 0 34 2 0 0 0 36 SSW 0 48 1 0 0 0 49 SW 0 12 0 0 0 0 12 WSW 0 14 3 0 0 0 17 W 0 2 7 0 0 0 9 WNW 0 1 8 0 0 0 9 NW 0 0 7 0 0 0 7 NNW 0 2 5 0 0 0 7 Variable 0 0 0 0 0 0 0 Total 5 189 55 0 0 0 249 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 5 Hours of missing stability measurements in all stability classes: 83 Page 50 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Moderately Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 4 0 0 0 5 NNE 0 1 2 0 0 0 3 NE 1 6 1 0 0 0 8 ENE 0 8 0 0 0 0 8 E 0 4 0 0 0 0 4 ESE 0 7 0 0 0 0 7 SE 0 7 0 0 0 0 7 SSE 0 9 0 0 0 0 9 S 0 6 0 0 0 0 6 SSW 0 10 1 0 0 0 11 SW 0 4 0 0 0 0 4 WSW 0 10 0 0 0 0 10 W 0 5 1 0 0 0 6 WNW 0 5 4 0 0 0 9 NW 0 7 0 1 0 0 8 NNW 0 3 2 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 1 93 15 1 0 0 110 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 8 Hours of missing stability measurements in all stability classes: 83 Page 51 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Slightly Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 5 0 0 0 6 NNE 0 6 5 0 0 0 11 NE 0 14 0 0 0 0 14 ENE 1 8 0 0 0 0 9 E 0 4 1 0 0 0 5 ESE 1 10 3 0 0 0 14 SE 0 13 0 0 0 0 13 SSE 0 15 1 0 0 0 16 S 0 10 0 0 0 0 10 SSW 0 16 1 0 0 0 17 SW 0 12 2 0 0 0 14 WSW 0 22 0 1 0 0 23 W 0 16 0 1 0 0 17 WNW 0 7 4 1 0 0 12 NW 1 4 2 1 0 0 8 NNW 0 6 1 0 0 0 7 Variable 0 0 0 0 0 0 0 Total 3 164 25 4 0 0 196 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 6 Hours of missing stability measurements in all stability classes: 83 Page 52 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Neutral - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 16 8 0 0 0 27 NNE 0 22 39 3 0 0 64 NE 2 27 5 0 0 0 34 ENE 1 21 0 0 0 0 22 E 3 6 0 0 0 0 9 ESE 4 19 1 0 0 0 24 SE 11 15 0 0 0 0 26 SSE 11 20 0 1 0 0 32 S 12 23 1 0 0 0 36 SSW 7 19 0 0 0 0 26 SW 8 25 3 0 0 0 36 WSW 9 27 5 0 0 0 41 W 4 29 7 0 0 0 40 WNW 3 37 16 1 0 0 57 NW 3 21 2 0 0 0 26 NNW 4 6 6 1 0 0 17 Variable 0 0 0 0 0 0 0 Total 85 333 93 6 0 0 517 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 35 Hours of missing stability measurements in all stability classes: 83 Page 53 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Slightly Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 5 19 1 0 0 0 25 NNE 8 10 0 0 0 0 18 NE 9 4 0 0 0 0 13 ENE 6 6 1 0 0 0 13 E 14 2 0 0 0 0 16 ESE 11 6 0 0 0 0 17 SE 34 10 0 0 0 0 44 SSE 16 5 0 0 0 0 21 S 13 13 1 0 0 0 27 SSW 10 28 10 0 0 0 48 SW 15 26 4 0 0 0 45 WSW 8 7 1 1 0 0 17 W 15 21 1 0 0 0 37 WNW 8 26 2 1 0 0 37 NW 6 14 0 0 0 0 20 NNW 6 25 0 0 0 0 31 Variable 0 0 0 0 0 0 0 Total 184 222 21 2 0 0 429 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 25 Hours of missing stability measurements in all stability classes: 83 Page 54 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Moderately Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 10 0 0 0 0 0 10 NNE 7 0 0 0 0 0 7 NE 10 0 0 0 0 0 10 ENE 11 0 0 0 0 0 11 E 29 3 0 0 0 0 32 ESE 56 3 0 0 0 0 59 SE 29 0 0 0 0 0 29 SSE 17 0 0 0 0 0 17 S 14 0 0 0 0 0 14 SSW 15 1 0 0 0 0 16 SW 4 0 0 0 0 0 4 WSW 11 1 0 0 0 0 12 W 12 5 0 0 0 0 17 WNW 3 0 0 0 0 0 3 NW 5 0 0 0 0 0 5 NNW 2 0 0 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 235 13 0 0 0 0 248 Hours of calm in this stability class: 6 Hours of missing wind measurements in this stability class: 8 Hours of missing stability measurements in all stability classes: 83 Page 55 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Extremely Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 12 0 0 0 0 0 12 NNE 7 0 0 0 0 0 7 NE 16 0 0 0 0 0 16 ENE 25 0 0 0 0 0 25 E 45 1 0 0 0 0 46 ESE 36 1 0 0 0 0 37 SE 17 0 0 0 0 0 17 SSE 16 1 0 0 0 0 17 S 4 0 0 0 0 0 4 SSW 11 0 0 0 0 0 11 SW 4 0 0 0 0 0 4 WSW 5 0 0 0 0 0 5 W 4 1 0 0 0 0 5 WNW 7 0 0 0 0 0 7 NW 7 0 0 0 0 0 7 NNW 7 0 0 0 0 0 7 Variable 0 0 0 0 0 0 0 Total 223 4 0 0 0 0 227 Hours of calm in this stability class: 48 Hours of missing wind measurements in this stability class: 7 Hours of missing stability measurements in all stability classes: 83 Page 56 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Extremely Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 1 0 0 0 1 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 4 0 0 0 4 SSE 0 0 7 6 0 0 13 S 0 0 7 10 0 0 17 SSW 0 0 10 9 0 0 19 SW 0 0 4 1 0 0 5 WSW 0 0 1 2 0 0 3 W 0 0 0 2 0 0 2 WNW 0 0 0 0 1 0 1 NW 0 0 2 0 1 0 3 NNW 0 0 1 1 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 0 37 31 2 0 70 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 83 Page 57 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Moderately Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 5 0 0 0 5 NNE 0 0 3 1 0 0 4 NE 0 0 5 2 0 0 7 ENE 0 2 2 0 0 0 4 E 0 0 5 1 0 0 6 ESE 0 0 1 1 0 0 2 SE 0 0 8 1 0 0 9 SSE 0 1 17 6 1 0 25 S 0 4 10 5 1 0 20 SSW 0 2 17 9 1 0 29 SW 0 1 6 2 0 0 9 WSW 0 1 7 1 0 0 9 W 0 0 4 4 0 0 8 WNW 0 0 1 2 2 0 5 NW 0 2 0 5 2 0 9 NNW 0 1 4 3 0 0 8 Variable 0 0 0 0 0 0 0 Total 0 14 95 43 7 0 159 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 83 Page 58 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Slightly Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 4 0 0 8 NNE 0 1 14 3 0 0 18 NE 0 4 7 1 0 0 12 ENE 0 10 14 1 0 0 25 E 0 2 2 1 0 0 5 ESE 0 2 5 2 0 0 9 SE 0 2 2 1 0 0 5 SSE 0 7 6 8 0 0 21 S 0 2 9 5 1 0 17 SSW 0 11 5 5 1 0 22 SW 0 5 4 2 0 0 11 WSW 0 14 5 2 1 0 22 W 0 7 7 0 0 0 14 WNW 0 1 7 2 0 0 10 NW 0 3 5 7 2 1 18 NNW 0 4 3 1 0 1 9 Variable 0 0 0 0 0 0 0 Total 0 76 98 45 5 2 226 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 6 Hours of missing stability measurements in all stability classes: 83 Page 59 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Neutral - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 8 20 11 0 0 39 NNE 0 2 16 14 3 0 35 NE 0 8 25 37 9 2 81 ENE 0 11 20 14 0 0 45 E 0 2 7 2 0 0 11 ESE 1 10 6 4 1 0 22 SE 0 11 10 5 0 1 27 SSE 2 6 10 11 0 1 30 S 2 8 12 17 4 0 43 SSW 1 13 19 12 1 0 46 SW 3 15 12 12 4 0 46 WSW 2 17 15 9 1 1 45 W 2 12 15 9 2 0 40 WNW 1 13 29 16 6 1 66 NW 0 9 18 27 6 2 62 NNW 1 7 7 9 0 1 25 Variable 0 0 0 0 0 0 0 Total 15 152 241 209 37 9 663 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 10 Hours of missing stability measurements in all stability classes: 83 Page 60 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Slightly Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 11 24 0 0 38 NNE 0 7 12 10 1 0 30 NE 0 5 17 12 0 1 35 ENE 1 5 10 6 0 0 22 E 0 1 10 1 1 0 13 ESE 0 3 5 1 0 0 9 SE 0 0 7 2 2 0 11 SSE 0 3 17 23 0 0 43 S 0 4 18 22 1 0 45 SSW 1 4 20 33 7 3 68 SW 1 7 13 32 14 0 67 WSW 1 2 4 10 0 0 17 W 0 5 7 8 1 0 21 WNW 0 2 11 9 0 0 22 NW 2 2 16 17 0 0 37 NNW 1 1 8 4 0 0 14 Variable 0 0 0 0 0 0 0 Total 7 54 186 214 27 4 492 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 4 Hours of missing stability measurements in all stability classes: 83 Page 61 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Moderately Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 3 0 0 0 0 4 NNE 0 2 1 0 0 0 3 NE 0 2 5 0 0 0 7 ENE 2 4 9 1 0 0 16 E 0 5 10 1 0 0 16 ESE 0 5 4 6 0 0 15 SE 0 4 8 11 1 0 24 SSE 0 1 10 17 0 0 28 S 0 1 36 16 0 0 53 SSW 0 2 19 20 0 0 41 SW 0 2 7 9 0 0 18 WSW 1 1 9 1 0 0 12 W 3 3 3 3 0 0 12 WNW 0 6 6 8 0 0 20 NW 0 0 6 7 0 0 13 NNW 0 3 6 0 0 0 9 Variable 0 0 0 0 0 0 0 Total 7 44 139 100 1 0 291 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 14 Hours of missing stability measurements in all stability classes: 83 Page 62 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: July - September 2020 Stability Class - Extremely Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 1 1 0 0 0 3 NNE 0 3 2 0 0 0 5 NE 0 7 5 0 0 0 12 ENE 0 4 1 0 0 0 5 E 2 4 2 0 0 0 8 ESE 0 2 2 2 0 0 6 SE 0 5 4 7 1 0 17 SSE 0 2 7 10 1 0 20 S 1 2 7 9 0 0 19 SSW 1 6 23 10 0 0 40 SW 1 4 12 4 0 0 21 WSW 0 2 7 0 0 0 9 W 1 3 2 0 0 0 6 WNW 0 0 4 0 0 0 4 NW 0 3 1 0 0 0 4 NNW 0 2 0 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 7 50 80 42 2 0 181 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 8 Hours of missing stability measurements in all stability classes: 83 Page 63 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Extremely Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 0 0 2 NNE 0 2 1 0 0 0 3 NE 0 1 0 0 0 0 1 ENE 1 1 0 0 0 0 2 E 0 2 0 0 0 0 2 ESE 0 5 0 0 0 0 5 SE 0 2 2 0 0 0 4 SSE 0 7 10 0 0 0 17 S 0 2 13 0 0 0 15 SSW 0 24 10 0 0 0 34 SW 0 2 3 0 0 0 5 WSW 0 3 4 0 0 0 7 W 0 1 3 0 0 0 4 WNW 0 0 7 2 0 0 9 NW 0 1 3 0 0 0 4 NNW 0 1 3 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 1 54 61 2 0 0 118 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 64 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Moderately Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 1 0 0 0 0 1 NE 0 1 0 0 0 0 1 ENE 0 2 0 0 0 0 2 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 1 0 0 0 1 SSE 0 2 1 0 0 0 3 S 0 1 0 0 0 0 1 SSW 0 4 3 0 0 0 7 SW 0 3 2 0 0 0 5 WSW 0 1 3 0 0 0 4 W 0 1 4 0 0 0 5 WNW 0 0 1 2 0 0 3 NW 0 1 2 0 0 0 3 NNW 0 0 4 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 0 17 21 2 0 0 40 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 65 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Slightly Unstable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 1 0 0 0 6 NNE 0 3 1 0 0 0 4 NE 0 4 0 0 0 0 4 ENE 1 2 0 0 0 0 3 E 0 3 2 0 0 0 5 ESE 0 0 0 0 0 0 0 SE 0 4 4 0 0 0 8 SSE 0 1 2 0 0 0 3 S 0 3 0 1 0 0 4 SSW 0 5 2 0 0 0 7 SW 0 7 1 0 0 0 8 WSW 0 11 1 0 0 0 12 W 0 5 9 1 0 0 15 WNW 0 7 9 4 0 0 20 NW 0 9 2 0 0 0 11 NNW 0 1 1 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 1 70 35 6 0 0 112 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 66 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Neutral - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 7 28 28 0 0 0 63 NNE 6 22 17 0 0 0 45 NE 4 29 14 6 0 0 53 ENE 1 16 5 0 0 0 22 E 4 9 5 0 0 0 18 ESE 4 9 10 0 0 0 23 SE 7 20 19 0 0 0 46 SSE 7 11 10 0 0 0 28 S 2 12 13 0 0 0 27 SSW 5 22 10 1 0 0 38 SW 4 36 6 2 0 0 48 WSW 7 42 12 18 0 0 79 W 7 55 55 33 4 0 154 WNW 18 59 70 17 0 0 164 NW 8 52 25 0 0 0 85 NNW 10 47 32 1 0 0 90 Variable 0 0 0 0 0 0 0 Total 101 469 331 78 4 0 983 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 67 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Slightly Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 8 2 0 0 0 14 NNE 9 10 0 0 0 0 19 NE 12 17 0 0 0 0 29 ENE 4 5 1 0 0 0 10 E 6 9 1 0 0 0 16 ESE 10 15 3 0 0 0 28 SE 9 16 5 0 0 0 30 SSE 10 24 22 0 0 0 56 S 6 20 21 0 0 0 47 SSW 11 51 1 0 0 0 63 SW 16 57 7 0 0 0 80 WSW 11 34 5 0 0 0 50 W 8 70 9 0 0 0 87 WNW 9 36 1 0 0 0 46 NW 3 12 0 0 0 0 15 NNW 6 12 0 0 0 0 18 Variable 0 0 0 0 0 0 0 Total 134 396 78 0 0 0 608 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 68 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Moderately Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 0 0 0 0 0 2 NNE 2 0 0 0 0 0 2 NE 2 2 0 0 0 0 4 ENE 5 0 0 0 0 0 5 E 20 9 0 0 0 0 29 ESE 15 16 0 0 0 0 31 SE 12 1 0 0 0 0 13 SSE 8 8 0 0 0 0 16 S 7 5 0 0 0 0 12 SSW 13 7 0 0 0 0 20 SW 10 0 0 0 0 0 10 WSW 11 2 0 0 0 0 13 W 11 1 0 0 0 0 12 WNW 11 0 0 0 0 0 11 NW 1 1 0 0 0 0 2 NNW 3 0 0 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 133 52 0 0 0 0 185 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 69 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Extremely Stable - 196Ft-33Ft Delta-T (F)
Winds Measured at 33 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 0 0 0 0 0 4 NNE 3 0 0 0 0 0 3 NE 3 0 0 0 0 0 3 ENE 3 0 0 0 0 0 3 E 20 4 0 0 0 0 24 ESE 33 2 0 0 0 0 35 SE 21 0 0 0 0 0 21 SSE 9 2 0 0 0 0 11 S 6 0 0 0 0 0 6 SSW 11 0 0 0 0 0 11 SW 3 0 0 0 0 0 3 WSW 5 0 0 0 0 0 5 W 7 3 0 0 0 0 10 WNW 7 4 0 0 0 0 11 NW 6 0 0 0 0 0 6 NNW 2 0 0 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 143 15 0 0 0 0 158 Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 70 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Extremely Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 1 0 0 1 S 0 0 2 2 7 0 11 SSW 0 0 2 8 10 1 21 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 2 1 0 3 NW 0 0 0 0 0 0 0 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 0 5 13 18 1 37 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 71 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Moderately Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 0 0 1 NNE 0 0 0 2 0 0 2 NE 0 1 0 0 0 0 1 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 1 1 0 0 0 2 SE 0 1 1 1 0 0 3 SSE 0 1 1 0 0 0 2 S 0 0 0 2 3 4 9 SSW 0 0 3 5 0 0 8 SW 0 0 2 2 2 0 6 WSW 0 0 3 0 1 0 4 W 0 0 1 3 2 0 6 WNW 0 0 1 2 3 0 6 NW 0 0 0 3 1 3 7 NNW 0 0 1 3 0 0 4 Variable 0 0 0 0 0 0 0 Total 0 4 14 24 12 7 61 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 72 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Slightly Unstable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 1 0 0 0 2 NNE 0 3 2 2 0 0 7 NE 0 4 4 0 0 0 8 ENE 0 0 1 0 0 0 1 E 0 1 2 2 0 0 5 ESE 0 0 2 0 0 0 2 SE 0 0 1 1 0 0 2 SSE 0 2 1 6 0 1 10 S 0 0 0 1 1 0 2 SSW 0 0 3 5 2 1 11 SW 0 3 8 6 1 1 19 WSW 0 1 3 2 0 0 6 W 0 1 9 4 1 0 15 WNW 0 1 5 2 4 0 12 NW 0 0 9 2 3 2 16 NNW 0 0 5 3 0 0 8 Variable 0 0 0 0 0 0 0 Total 0 17 56 36 12 5 126 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 73 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Neutral - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 15 24 27 2 0 72 NNE 1 10 15 20 1 0 47 NE 1 13 10 18 7 4 53 ENE 3 11 14 10 4 0 42 E 1 3 14 3 0 0 21 ESE 3 2 5 9 4 0 23 SE 1 1 3 11 8 4 28 SSE 3 4 9 12 13 2 43 S 4 9 3 9 15 10 50 SSW 1 6 5 8 15 8 43 SW 5 6 15 15 5 2 48 WSW 2 13 22 9 2 5 53 W 2 16 31 21 13 26 109 WNW 1 10 33 31 26 24 125 NW 4 34 36 45 27 6 152 NNW 5 20 43 33 14 0 115 Variable 0 0 0 0 0 0 0 Total 41 173 282 281 156 91 1024 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 47 Hours of missing stability measurements in all stability classes: 1 Page 74 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Slightly Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 2 4 0 0 8 NNE 0 2 4 3 1 0 10 NE 0 2 12 6 0 0 20 ENE 2 8 16 7 0 0 33 E 0 3 6 0 0 0 9 ESE 0 0 5 6 2 0 13 SE 1 1 7 11 6 0 26 SSE 0 6 10 15 9 2 42 S 1 1 6 15 26 11 60 SSW 0 3 7 32 16 7 65 SW 1 2 11 46 20 0 80 WSW 0 2 13 32 3 0 50 W 0 2 13 29 7 0 51 WNW 0 6 11 29 4 0 50 NW 0 2 26 16 1 0 45 NNW 0 2 19 15 0 0 36 Variable 0 0 0 0 0 0 0 Total 5 44 168 266 95 20 598 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 75 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Moderately Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 0 0 0 4 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 2 0 2 1 0 0 5 E 0 1 3 3 0 0 7 ESE 0 0 3 9 2 0 14 SE 0 2 3 8 6 0 19 SSE 0 3 2 19 1 0 25 S 0 2 9 12 2 0 25 SSW 0 1 7 19 0 0 27 SW 0 1 14 8 7 0 30 WSW 0 1 3 2 0 0 6 W 0 2 11 13 1 0 27 WNW 1 0 6 4 0 0 11 NW 2 1 3 0 0 0 6 NNW 0 3 7 0 0 0 10 Variable 0 0 0 0 0 0 0 Total 5 18 76 98 19 0 216 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 76 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Joint Frequency Tables Quad Cities Generating Station Period of Record: October - December 2020 Stability Class - Extremely Stable - 296Ft-33Ft Delta-T (F)
Winds Measured at 296 Feet Wind Speed (in mph)
Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 2 1 0 0 6 NNE 1 4 2 1 0 0 8 NE 0 3 2 1 0 0 6 ENE 1 3 1 0 0 0 5 E 0 1 1 0 0 0 2 ESE 1 0 2 2 0 0 5 SE 0 1 0 4 0 0 5 SSE 0 0 1 4 0 0 5 S 0 0 4 5 0 0 9 SSW 0 1 2 10 1 0 14 SW 0 0 2 9 0 0 11 WSW 0 0 1 2 0 0 3 W 0 1 0 2 0 0 3 WNW 0 0 2 1 0 0 3 NW 0 2 5 0 0 0 7 NNW 1 2 3 0 0 0 6 Variable 0 0 0 0 0 0 0 Total 4 21 30 42 1 0 98 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 Page 77 of 78
Quad Cities Nuclear Power Station 2020 Annual Radioactive Effluent Release Report Solid Waste and Irradiated Fuel Shipments A. Solid Waste Shipped Offsite for Burial or Disposal (Not irradiated fuel)
- 1. Types of Waste Total Quantity Total Activity Est. Total Types of Waste Period (m3) (Ci) Error %
- a. Spent resins, filter sludges, evaporator bottoms, etc 1.20E+02 8.30E+02 2020 2.50E+01
- b. Dry compressible waste, contaminated equip, etc 6.37E+02 3.26E+00 2020 2.50E+01
- c. Irradiated components, control rods, etc N/A N/A N/A N/A
- d. Other (describe) Combined Packages of a. and b. N/A N/A N/A N/A
- 2. Estimate of major nuclide composition (by waste type)
Major Nuclide Composition % / Ci
- a. Mn-54 7.93E+00 / 2.59E-01 Fe-55 3.24E+01 / 1.06E+00 Co-60 4.83E+01 / 1.57E+00 Zn-65 5.61E+00 / 1.83E-01 Ag-110m 1.20E+00 / 3.91E-02 Cs-137 3.42E+00 / 1.11E-01
- b. Mn-54 1.23E+00 / 1.02E+01 Fe-55 4.66E+01 / 3.87E+02 Co-60 4.67E+01 / 3.88E+02 Ni-63 1.01E+00 / 8.39E+00 Cs-137 2.88E+00 / 2.39E+01
- c. N/A N/A
- d. N/A N/A
- 3. Solid Waste Disposition Number of Shipments Mode of Transportation Destination 14 Highway Processor 27 Highway Disposal B. Irradiated Fuel Shipments (disposition)
Number of Shipments Mode of Transportation Destination N/A N/A N/A C. Changes to the Process Control Program No changes were made to the Process Control Program in 2020.
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