Text

Radioactive Effluent Release Report for 2023
	ML24117A227
Person / Time
Site:	Quad Cities
Issue date:	04/26/2024
From:	Hild D; Constellation Energy Generation
To:	; Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation, Document Control Desk
References
	SVP-24-029
	Download: ML24117A227 (1)
	v • d • e

Constellation _.

SVP-24-029 April 26, 2024 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555

Subject:

Quad Cities Nuclear Power Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-29 and DPR-30 NRC Docket Nos. 50-254 and 50-265 Radioactive Effluent Release Report for 2023 10 CFR 50.36a Pursuant to Technical Specifications Section 5.6.3 and 10 CFR 50.36a, enclosed is the Quad Cities Nuclear Power Station Radioactive Effluent Release Report for January through December 2023.

Should you have any questions concerning this letter, please contact Blake Young at (309) 227-3200.

Respe~+j~

Doug Hild Site Vice President Quad Cities Nuclear Power Station Attachments:

1. 2023 Annual Radioactive Effluent Release Report cc:

Regional Administrator - NRC Region Ill NRC Senior Resident Inspector-Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents - Summation of all Releases Period: January-December 2023 A. Fission & Activation Gases

1. Total Release

2. Average release rate for the period

3. Percent of ODCM limit <1l B. Iodine

1. Total Iodine -131

2. Average release rate for the period

3. Percent of ODCM limit C. Particulates <3l

1. Particulates with half-lives >8 days

2. Average release rate for the period

3. Percent of ODCM limit

4. Gross alpha radioactivity D. Tritium

1. Total Release 2.Average release rate for the period

3. Percent of ODCM limit E. Carbon - 14

1. Total Rel ease

2. Average release rate for the period

3. Percent of ODCM Limit F. Iodine 131 & 133, Tritium, Particulate, and C-14 Unit Ci

µCi/sec

%y

%13 Ci

µCi/sec Ci

µCi/sec Ci Ci

µCi/sec Ci

µCi/sec Unit: 1 & 2 Quarter 1 Quarter 2 2.19E+0l 1.43E+0l 2.82E+00 l.81E+00 5.28E-03 3.80E-03 8.47E-04 7.02E-04 5.60E-03 5.12E-05 7.20E-04 6.63E-06 N/A <2l N/A <2l S.49E-05 2.lSE-03 7.06E-06 2.73E-04 N/A <2l N/A <2l

<LLD <4l

<LLD <4l 2.31E+0l 2.56E+0l 2.97E+00 3.26E+00 N/A <2l N/A <2l 6.84E+00 6.47E+00 8.80E-01 8.23E-01 N/A <2l N/A <2l Quarter 3 2.63E+0l 3.31E+00 5.13E-03 2.06E-03

<LLD <4l

<LLD <4l N/A <2l 7.91E-05 9.95E-06 N/A <2l

<LLD <4l 2.68E+0l 3.37E+00 N/A <2l 7.47E+00 9.40E-01 N/A <2l Quarter 4 l.65E+0l 2.08E+00 4.20E-03 l.07E-03 5.37E-06 6.76E-07 N/A <2l 2.lSE-04 2.70E-05 N/A <2l

<LLD <4l 2.0SE+0l 2.58E+00 N/A <2l 7.52E+00 9.46E-01 N/A <2l

1. Percent of ODCM Organ Dose Limit I l.lSE+0l I 6.40E-01 I 6.89E-01 I 6.98E-01 I (1) % Noble gas gamma/noble gas beta dose limits (2) Percent of ODCM Limit is captured in aggregate in section F Total 7.90E+0l 5.66E-03 2.S0E-03 9.60E+Ol 2.83E+0l (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 82 1 of 81 Est. Total Error%

12.7 I

41.7 I

I 32.2 I

I 6.3 I

I

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Main Chimney (Elevated) Continuous Mode Period: January-December 2023 Unit: 1 & 2 Continuous Mode Nuclides Released Jan - Mar 2023 Apr - Jun 2023 Jul - Sep 2023 Oct - Dec 2023

1. FISSION AND ACTIVATION GASES: Curies Ar-41 5.72E-01 l.67E+O0 l.28E+00 7.32E-01 Kr-85m l.48E-01 l.llE-01 5.SGE-02 5.30E-02 Kr-85

<LLD Ul

<LLD 111 l.llE+00 6.24E-01 Kr-87 3.71E-01 l.62E-01 2.20E-01 2.16E-01 Kr-88 2.91E-01 l.07E-01 l.27E-01 l.30E-01 Xe-133m 5.25E-04

<LLD 11l

<LLD 111

<LLD Ul Xe-133 5.00E+00 l.67E+00 l.90E-01 l.59E-01 Xe-135m l.97E+00 l.09E+00 l.54E+00 l.47E+00 Xe-135 2.06E+00 9.73E-01 l.89E-01 l.98E-01 Xe-138 6.94E+00 4.lSE+00 5.84E+00 5.SSE+00 Total for Period l.74E+Ol 9.93E+00 l.06E+0l 9.13E+00 1-131 5.59E-03 5.12E-05

<LLD 111 5.37E-06 1-133 l.23E-04

<LLD 111 8.48E-04 l.2SE-04 1-135

<LLD Ill

<LLD 111

<LLD 11l Total for Period 5.71E-03 5.12E-05 8.48E-04 l.30E-04

3. PARTICULATES WITH HALF-LIVES> 8 DAYS t2l: Curies Cr-51

<LLD Ul

<LLD 111

<LLD 111 Mn-54

<LLD 111

<LLD (I)

Fe-55

<LLD (I)

<LLD 111 Fe-59

<LLDl1l

<LLD 111

<LLD (I)

Co-58

<LLD (I)

<LLD 111

<LLD (I)

Co-60

<LLD (I)

<LLD 111

<LLD 111 Ni-63

<LLD Ul

<LLD 111

<LLD t1l Zn-65

<LLD Ul

<LLD 111

<LLD 111 Sr-89

<LLD (ll

<LLD (I)

<LLD 111 Sr-90

<LLD (ll

<LLD Ul

<LLD 111 Zr/Nb-95131

<LLD (ll

<LLD (I)

<LLD (ll Mo-99

<LLD (I)

<LLD 111 Ag-llOm

<LLD (ll

<LLD l1l

<LLD (ll Cs-134

<LLD (ll

<LLD (I)

<LLD (ll Cs-137

<LLD Ill

<LLD l1l

<LLD 11l Ba/La -140131

<LLD (I)

<LLD (ll

<LLD 11l Ce-141

<LLD (I)

<LLD 11l

<LLD (Il Ce-144

<LLD (I)

<LLD (IJ

<LLD 11l Total for Period

<LLD Ill

<LLD (Il

<LLD 111

4. CARBON - 14: Curies C-14 6.64E+00 6.27E+00 7.24E+00

5. TRITIUM: Curies H-3 2.0SE+0l 2.25E+0l 2.28E+0l

6. GROSS ALPHA: Curies Gross Alpha

<LLD (I)

<LLD (IJ

<LLD (I)

(1) Gaseous LLDs reported on page 9 of 82 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is1/2 of total 2 of 81

<LLD 11l 6.28E-06

<LLD (I)

<LLD (I) l.67E-04

<LLD 111

<LLD 111 8.92E-06

<LLD (I)

<LLD 111

<LLD (I)

<LLD Ul

<LLD (I)

<LLD Ill

<LLD (I)

<LLD (iJ

<LLD (I) l.82E-04 7.30E+00 l.62E+0l

<LLD (I)

Total 4.25E+00 3.67E-01 l.74E+00 9.69E-01 6.54E-01 5.25E-04 7.02E+00 6.06E+00 3.42E+00 2.25E+0l 4.70E+0l 5.GSE-03 l.09E-03

<LLD 111 6.74E-03

<LLD 111 6.28E-06

<LLD 11l

<LLD (I)

<LLD 111 l.67E-04

<LLD (I)

<LLD (I) 8.92E-06

<LLD (I)

<LLD (ll

<LLD (iJ

<LLD (I)

<LLD 11l l.82E-04 2.74E+0l 8.20E+0l

<LLD (I)

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Main Chimney (Elevated) Batch Mode Period: January-December 2023 Unit: 1 & 2 Batch Mode !11 Nuclides Released Jan - Mar 2023 Apr -Jun 2023 Jul-Sep 2023 Oct - Dec 2023

1. FISSION AND ACTIVATION GASES: Curies Kr-85 N/A 111 N/A 111 N/A Ul Kr-85m N/A 111 N/A 111 N/A 111 Kr-87 N/A 111 N/A 111 N/A 111 Kr-88 N/A 111 N/A 111 N/A 111 Xe-133 N/A 111 N/A 111 N/A <11 Xe-135 N/All)

N/All)

N/A <11 Xe-135m N/All)

N/All)

N/A 111 Xe-138 N/All)

N/A 111 N/A <11 Ar-41 N/A 111 N/A 111 N/A <11 Total for Period N/A 111 N/A(l)

N/A <11

2. IODINES: Curies 1-131 N/All)

N/A Ul N/A 111 1-133 N/Alll N/A 111 N/A 111 1-135 N/Alll N/A 111 N/A 111 Total for Period N/Alll N/A 111 N/A Ul

3. PARTICULATES WITH HALF-LIVES> 8 DAYS 121: Curies Cr-51 N/A <11 N/A 111 N/A Ul Mn-54 N/A <11 N/A 111 N/A 111 Fe-55 N/A <1l N/A 111 N/A Ul Fe-59 N/A <1l N/A 111 N/A Ul Co-58 N/Alll N/A 111 N/A Ul Co-60 N/Alll N/A 111 N/A 111 Ni-63 N/A <11 N/A 111 N/ A Ul Zn-65 N/Alll N/A 111 N/A 111 Sr-89 N/Alll N/A 111 N/A Ul Sr-90 N/Alll N/Alll N/A 111 Zr/Nb-95131 N/All)

N/A 111 N/A <11 Mo-99 N/A (ll N/A 111 N/A 111 Ag-ll0m N/A Ul N/All)

N/A 111 Cs-134 N/A 111 N/A 111 N/A 111 Cs-137 N/A 111 N/A <11 N/A 111 Ba/La -140131 N/A 111 N/A 111 N/A 111 Ce-141 N/A 111 N/All)

N/A 111 Ce-144 N/All)

N/A 111 N/A 111 Total for Period N/A <11 N/A <11 N/A <11

4. CARBON -14: Curies C-14 N/A 111 N/A 111 N/All)

5. TRITIUM: Curies H-3 N/Alll N/A 111 N/All)

6. GROSS ALPHA: Curies Gross Alpha N/Alll N/A 111 N/All)

(1) Quad Cities performed no Gaseous Batch Releases in 2023 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is1/2 of total 3 of 81 N/A Ul N/A Ul N/A 111 N/A Ul N/A Ul N/A 111 N/A Ul N/A Ul N/A 111 N/A 111 N/A 111 N/A 111 N/A <11 N/A <11 N/A 111 N/A 111 N/A 111 N/A <11 N/A <11 N/A <11 N/ A <11 N/A <11 N/A <11 N/A Ill N/All)

N/A (ll N/A 111 N/A 111 N/All)

N/A 111 N/A 111 N/A 111 N/A 111 N/A 111 N/All)

N/A 111 Total N/A 111 N/A Ul N/A Ul N/A Ul N/A (ll N/A <11 N/A <1l N/A <11 N/A Ill N/A <11 N/A Ul N/A 111 N/A 111 N/A 111 N/A 111 N/A 111 N/A 111 N/A <11 N/A Ill N/A <11 N/A Ul N/A <11 N/A Ul N/A 111 N/A <11 N/A 111 N/A <11 N/A <11 N/A <11 N/A Ill N/A Ul N/A <11 N/A <11 N/A 111 N/A 111 N/A Ul

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Reactor Vent (Mixed Mode) Continuous Mode Period: January-December 2023 Unit: 1 & 2 Continuous Mode Nuclides Released Jan - Mar 2023 Apr -Jun 2023 Jul - Sep 2023 Oct - Dec 2023

1. FISSION AND ACTIVATION GASES: Curies Ar-41

<LLD Ill

<LLD (tl

<LLD (tl Kr-85m

<LLDl1J

<LLD Ill

<LLD Ul

<LLD 11l Kr-85

<LLD (I)

<LLD Ill

<LLD (tl

<LLD Ill Kr-87

<LLD t1l

<LLD (I)

<LLD ltl

<LLD (I)

Kr-88

<LLD OJ

<LLD Ill

<LLD Ul Xe-133 4.SSE+00 4.34E+00 l.57E+0l 7.38E+00 Xe-13Sm

<LLD (I)

<LLD Ill

<LLD Ill Xe-135

<LLD Ill

<LLD Ul

<LLD 11l

<LLD Ill Xe-138

<LLD 11l

<LLD tll

<LLD Ill

<LLD Ill Total for Period 4.SSE+00 4.34E+00 l.57E+0l 7.38E+00

2. IODINES: Curies 1-131 l.27E-OS 9.lSE-07

<LLD Ul

<LLD Ill 1-133

<LLD Ill

<LLD (tl

<LLD (I)

<LLD Ill 1-135

<LLD (I)

<LLD t1l

<LLD Ill

<LLD Ill Total for Period l.27E-0S 9.lSE-07

<LLD 11l

<LLD Ill

3. PARTICULATES WITH HALF-LIVES> 8 DAYS l2l: Curies Cr-51

<LLD Ill

<LLD (I)

Mn-54

<LLD 11l l.90E-04 3.06E-0S

<LLD Ill Fe-55

<LLD 11l 9.26E-04

<LLD Ill

<LLD Ill Fe-59

<LLD Ill

<LLD l1l

<LLD (I)

<LLD (ll Co-58

<LLD Ill

<LLD (I)

<LLD Ill Co-60 S.49E-05 1.04E-03 4.84E-05 3.27E-05 Ni-63

<LLD 111

<LLD Ill

<LLD 111

<LLD 11l Zn-65

<LLD 111

<LLD Ill

<LLD Ill Sr-89

<LLD 111

<LLD Ill

<LLD Ill Sr-90

<LLD Ill

<LLD (tl

<LLD Ill

<LLD (I)

Zr/Nb-9513!

<LLD (I)

<LLD Ill

<LLD (I)

<LLD Ill Mo-99

<LLD (I)

<LLD Ill

<LLD Ill Ag-110m

<LLD Ill

<LLD 11l

<LLD Ill

<LLD Ill Cs-134

<LLD Ill

<LLD 11l

<LLD Ill

<LLD 11l Cs-137

<LLD Ill

<LLD l1l

<LLD Ill

<LLD 11l Ba/La-140131

<LLD (I)

<LLD Ill

<LLD 111

<LLD <11 Ce-141

<LLD (ll

<LLD 111

<LLD 11l

<LLD Ill Ce-144

<LLD Ill

<LLD 11l

<LLD Ill Total for Period S.49E-0S 2.16E-03 7.90E-0S 3.27E-0S

4. CARBON - 14: Curies C-14 2.06E-01 l.94E-01 2.24E-01 2.26E-01

5. TRITIUM: Curies H-3 2.64E+00 3.18E+00 3.94E+00 4.25E+00

6. GROSS ALPHA: Curies Gross Alpha

<LLD 111

<LLD (I)

<LLD Ill

<LLD Ill (1) Gaseous LLDs reported on page 9 of 82 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is1/2 of total 4 of 81 Total

<LLD Ill

<LLD 11l

<LLD t1J

<LLD (tl

<LLD Ill 3.20E+0l

<LLD (tl

<LLD lll

<LLD Ill 3.20E+0l l.36E-OS

<LLD (tl

<LLD (tl l.36E-0S

<LLD 11l 2.21E-04 9.26E-04

<LLD Ill

<LLD (I) l.18E-03

<LLD t1l

<LLD Ill

<LLD ltl

<LLD 11l

<LLD 111

<LLD Ill

<LLD 11l

<LLD (I)

<LLD 11l 2.33E-03 8.S0E-01 l.40E+0l

<LLD (I)

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Gaseous Effluents Release Point Reactor Vent (Mixed Mode) Batch Mode Period: January-December 2023 Unit: 1 & 2 Batch Mode 111 Nuclides Released Jan - Mar 2023 Apr - Jun 2023 Jul - Sep 2023 Oct - Dec 2023

1. FISSION AND ACTIVATION GASES: Curies Kr-85 N/A Ill N/A 111 N/A 111 N/A Ill Kr-85m N/All)

N/A 11>

N/A {l)

N/A Ill Kr-87 N/A 11>

N/A 11>

N/All)

Kr-88 N/A t1>

N/A 11>

Xe-133 N/A 11>

N/A 111 N/A 11>

N/A Ill Xe-135 N/A t1>

N/A 111 N/A 11>

N/A 111 Xe-135m N/A 11>

N/A 111 N/A 11>

N/A 111 Xe-138 N/A 11>

N/A t1>

N/A 11>

N/A 11l Ar-41 N/A 11>

N/A 111 N/A 111 N/All)

Total for Period N/A 11>

N/A 111 N/A 111 N/A 11>

2. IODINES: Curies 1-131 N/A t1>

N/A 11>

1-133 N/A t1>

N/A 11>

N/A Ill N/A 111 1-135 N/A 111 N/A 111 N/A Ul N/A 111 Total for Period N/A Ill N/A 111 N/A 111 N/A Ill

3. PARTICULATES WITH HALF-LIVES> 8 DAYS t2>: Curies Cr-51 N/A Ill N/A 11>

N/A 111 Mn-54 N/A Ill N/A 111 N/A 111 Fe-55 N/A Ill N/A 111 N/A 111 Fe-59 N/A t1>

N/A 111 N/A 111 Co-58 N/All)

N/A 111 N/A Ill Co-60 N/A Ill N/A 111 N/A 111 Ni-63 N/A (I)

N/A 111 N/A (I)

Zn-65 N/A (I)

N/A 111 N/A 111 Sr-89 N/A (I)

N/A 111 N/A 111 Sr-90 N/A Ill N/A Ill N/All)

Zr/Nb-95131 N/A 111 N/A Ill N/A Ill Mo-99 N/A 111 N/A 11>

N/A Ill Ag-110m N/A 111 N/A 11l N/A 111 Cs-134 N/A Ill N/A Ill N/A 111 Cs-137 N/A 111 N/A Ill N/A Ill Ba/La-140131 N/A {l)

N/A Ill N/Alll Ce-141 N/A Ill N/A 111 N/Alll Ce-144 N/Alll N/All)

N/A 111 Total for Period N/All)

N/Alll N/A 111

4. CARBON - 14: Curies C-14 N/A Ill N/A {l)

N/A Ill

5. TRITIUM: Curies H-3 N/A 11l N/A 111 N/Alll

6. GROSS ALPHA: Curies Gross Alpha N/All)

N/A(l)

N/AUl (1) Quad Cities Station performed no Gaseous Batch Releases in 2023 (2) Includes La-140 and Mo-99 per the ODCM (3) Equilibrium assumed, i.e., value for each nuclide is1/2 of total 5 of 81 N/A 111 N/A 111 N/A 11>

N/A 111 N/A Ill N/A (I)

N/A (I)

N/A 111 N/A 111 N/A 111 N/A 11l N/A Ill N/A 11l N/All)

N/A 111 N/A 111 N/A 111 N/A 111 N/A {l)

N/All)

N/A 11l N/All)

Total N/A 111 N/A Ill N/A 111 N/A Ill N/A 11>

N/A 111 N/A 111 N/A 111 N/A 11>

N/A 111 N/A Ill N/A Ill N/A Ill N/A 11l N/A 11l N/A Ill N/A Ill N/A 11l N/A Ill N/A Ill N/A Ill N/A Ul N/A 111 N/A 111 N/A 111 N/A 111 N/A Ul N/A Ul N/A 111 N/A 111 N/A 111 N/A Ul N/A Ul N/A Ul N/A Ul N/A 111

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Liquid Effluents - Summation of all Releases Period: January-December 2023 Unit: 1 &2 A. Fission & Activation Products Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4

1. Total Release (not including Tritium, Ci

<LLD 121

<LLD 121 2.70E-07 3.48E-04 gases & alpha)

2. Average diluted concentration

µCi/ml

<LLD 121 N/A 5.48E-16 9.56E-13 during period

3. Percent of acceptable limit Ill WB O.00E+00 6.46E-07 5.13E-06 8.67E-04 Organ 0.00E+00 l.94E-07 l.SSE-06 4.llE-04

4. Maximum diluted concentration

µCi/ml N/A N/A 6.86E-12 2.35E-10 during batch discharges B. Tritium

1. Total Release Ci

<LLD 121 4.58E-02 3.63E-01 5.30E-01

2. Average diluted concentration during

µCi/ml N/A 1.19E-10 7.36E-10 l.45E-09 period

3. Percent of acceptable limit:

<LLD 121 l.19E-06 7.36E-06 l.45E-05 3.00E-03 uCi/mL C. Dissolved & Entrained Noble Gases

1. Total Release Ci

<LLD 121

2. Average diluted concentration during

µCi/ml

<LLD 121

<LLD 121 period

3. Percent of acceptable limit:

<LLD 121

<LLD 121 2.00E-04 uCi/mL D. Gross Alpha Activity

1. Total Release Ci

<LLD 12l

<LLD 121

<LLD 121 E. Volume of Waste Released (prior to Liters 5.78E+06 1.78E+07 2.63E+07 l.79E+07 dilution)

F. Volume of Dilution Water Used Liters 2.60E+ll 3.84E+ll 4.92E+ll 3.65E+ll During Period (1) Whole body/organ dose (ODCM)

(2) Liquid LLDs reported on page 10 of 82 6 of 81 Total Est. Total Error%

3.48E-04 4.8 9.39E-01 I

4.1 I

<LLD 121 I

4.8 I

<LLD l2l 14.7 6.78E+07 l.S0E+l2

Nuclides Released Cr-51 Mn-54 Fe-55 Fe-59 Co-58 Co-60 Ni-63 Zn-65 Sr-89 Sr-90 Zr/Nb-95 Mo-99 Ag-ll0m Cs-134 Cs-137 Ba/La-140 Ce-141 Ce-144 Total for Period Xe-133 Xe-135 Total for Period H-3 Total for Period Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Liquid Effluents Release Point Mississippi River Continuous Mode Period: January-December 2023 Unit: 1 & 2 Continuous Mode Jan-Mar 2023 Apr -Jun 2023 Jul - Sep 2023 Oct - Dec 2023

1. FISSION AND ACTIVATION PRODUCTS: Curies

< LLD '11

< LLD 111

< LLD '11

< LLD 11l

< LLD 111

< LLD '11

< LLD 111

< LLD Ul

< LLD '11

< LLD 111

< LLD Ul

< LLD 111

< LLD fll

< LLD '11

< LLD 111

< LLD Ul

< LLD 111

< LLD '11

< LLD 111

< LLD '11

< LLD !11

< LLD '11

< LLD 111

< LLD '11

< LLD 111

< LLD Ul

< LLD 111

< LLD Ul

< LLD 111

< LLD '11

< LLD <11

< LLD !11

< LLD '11

< LLD 111

< LLD Ill

< LLD <11

< LLD 111

< LLD '11

< LLD 111

< LLD Ul

< LLD Ill

< LLD 111

< LLD !11

< LLD !1l

< LLD 111

< LLD <11

< LLD 111

< LLD Ill

< LLD 111

< LLD !11

< LLD 111

< LLD !1l

< LLD 111

< LLD '11

< LLD 111

< LLD Ul

< LLD 111

< LLD !1l

2. DISSOLVED AND ENTRAINED NOBLE GASES: Curies

< LLD '11

< LLD 111

< LLD '11

< LLD !11

< LLD !1l

< LLD f!J

< LLD fll

< LLD 111

3. TRITIUM: Curies

<LLD Ul 4.58E-02 3.62E-01 l.53E-01

<LLD 111 4.58E-02 3.62E-01 l.53E-01 (1) Liquid LLDs reported on page 10 of 82 7 of 81 Total

< LLD '11

< LLD fll

< LLD 111

< LLD Ill

< LLD 111

< LLD fll

< LLD Ul

< LLD <11

< LLD 111

< LLD !1l

< LLD 111

< LLD !1l

< LLD Ul

< LLD 111

< LLD '11

< LLD 111

< LLD Ul

< LLD '11

< LLD 111 5.61E-01 5.61E-01

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary Liquid Effluents Release Point Mississippi River Batch Mode River Discharge Tank Period: January - December 2023 Unit: 1 & 2 Batch Mode 121 Nuclides Released Jan-Mar 2023 Apr-Jun 2023 Jul - Sep 2023 13)

Oct - Dec 2023

1. FISSION AND ACTIVATION PRODUCTS: Curies Cr-51 N/A 12l N/A 121

<LLD (I)

<LLD Ill Mn-54 N/A 12l N/A 12l

<LLD (I)

<LLD 111 Fe-55 N/A 121 N/A 121

<LLD 111

<LLD Ul Co-58 N/A 121 N/A 12l

<LLD (I)

<LLD UI Co-60 N/A 12l N/A l2l

<LLD (I) 2.16E-04 Ni-63 N/A 12l N/A 121

<LLD Ill

<LLD Ul Zn-65 N/Al2l N/A 12l

<LLD (I)

<LLD Ill Rb-89 N/A 121 N/A l2l 3.91E-08

<LLD 111 Sb-124 N/A 121 N/A 121

<LLD 111

<LLD Ul Sb-125 N/A 121 N/A 121

<LLD 111

<LLD 111 Sr-89 N/A 121 N/A 12l

<LLD 111

<LLD Ill Sr-90 N/A 121 N/A 121

<LLD Ill

<LLD (I)

Sr-91 N/A 12l N/A 121 5.79E-09

<LLD 111 Zr/Nb-95 N/A 121 N/A 121

<LLD 111

<LLD (I) 1-131 N/A 12l N/A 12l l.92E-08

<LLD (I) 1-132 N/A 121 N/A 121 l.98E-09

<LLD Ul 1-133 N/A 121 N/A 121 3.14E-08

<LLD (I)

!-134 N/A 121 N/A 121 l.62E-09

<LLD (I)

Mo-99 N/A 121 N/A 12l

<LLD 111

<LLD Ul Ag-ll0m N/A 121 N/A 121

<LLD (I)

<LLD 11l Cs-134 N/A 121 N/A 121

<LLD Ill

<LLD (I)

Cs-137 N/A 121 N/A 121 2.42E-09 1.32E-04 Cs-138 N/A 121 N/A 121 5.0BE-08

<LLD (I)

Ba-139 N/A 121 N/A 121 l.18E-07

<LLD Ol Ba/La-140 N/A 121 N/A 121

<LLD (I)

Ce-141 N/A 121 N/A 121

<LLD (I)

<LLD 111 Ce-144 N/A 121 N/A <21

<LLD Ill

<LLD Ill Total for Period N/A 121 N/A 121 2.70E-07 3.48E-04 Xe-133 N/A 121 N/A 121

<LLD Ill

<LLD 111 Xe-135 N/A 121 N/A 121

<LLD 111

<LLD 111 Total for Period N/A 121 N/A 121

<LLD Ill

<LLD 111 H-3 N/A 12l N/A 121 3.54E-04 3.77E-01 Total for Period N/A 121 N/A 121 3.54E-04 3.77E-0l (1) Liquid LLDs reported on page 10 of 78 (2) No River Discharges performed in Ql, Q2, or Q3 (3) There were 2 abnormal batch liquid releases in Q3. Associated doses are described in Section 6.

8 of 81 Total

<LLD Ill

<LLD 111

<LLD Ul 2.16E-04

<LLD UI

<LLD Ill 3.91E-08

<LLD (I)

<LLD Ill

<LLD 111

<LLD UI 5.79E-09

<LLD (I) l.92E-08 l.98E-09 3.14E-08 l.62E-09

<LLD (I)

<LLD 111

<LLD 111 l.32E-04 5.08E-08 l.18E-07

<LLD 11l

<LLD 111

<LLD 111 3.48E-04

<LLD 111

<LLD (I)

<LLD l1l 3.77E-01 3.77E-01

NUCLIDE LOWER LIMIT OF DETECTION (LLD'S)

1. Fission Gases Ar-41 Kr-85 Kr-85m Kr-87 Kr-88 Xe-133 Xe-133m Xe-135 Xe-135m Xe-138 NUCLIDE LOWER LIMIT OF DETECTION (LLD's)

2. Iodines 1-131 1-133 1-135 NUCLIDE LOWER LIMIT OF DETECTION (LLD's)

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary GASEOUS EFFLUENT LLD'S (Most restrictive)

Continuous Mode UNIT LLD VALUE

µCi/cc 8.46E-09

µCi/cc 4.30E-06

µCi/cc l.07E-07

µCi/cc 4.92E-08

µCi/cc 6.95E-04

µCi/cc 4.lOE-08

µCi/cc 8.69E-08

µCi/cc l.02E-08

µCi/cc 8.29E-07

µCi/cc 2.73E-06 UNIT

µCi/cc l.31E-08

µCi/cc 2.0SE-08

µCi/cc 5.41E-08 UNIT

3. Particulates, Tritium, Gross Alpha H-3

µCi/cc l.16E-11 Cr-51

µCi/cc 9.0lE-08 Mn-54

µCi/cc 1.49E-08 Fe-55

µCi/cc 3.45E-12 Fe-59

µCi/cc 2.72E-08 Co-58

µCi/cc l.lOE-08 Co-60

µCi/cc l.97E-08 Zn-65

µCi/cc 3.04E-08 Ni-63

µCi/cc l.03E-13 Sr-89

µCi/cc 2.27e-13 Sr-90

µCi/cc 3.42e-14 Nb-95

µCi/cc l.17E-08 Zr-95

µCi/cc 2.30E-08 Mo-99

µCi/cc l.08E-07 Ag-llOm

µCi/cc l.33E-08 Cs-134

µCi/cc l.lSE-08 Cs-137

µCi/cc l.73E-08 Ba-140

µCi/cc 3.97E-08 La-140

µCi/cc l.58E-08 Ce-141

µCi/cc l.99E-08 Ce-144

µCi/cc 6.24E-08 Gross Alpha

µCi/cc 4.32e-14 ODCM REQUIRED LLD NONE NONE NONE l.OOE-04 l.OOE-04 l.OOE-04 l.OOE-04 l.OOE-04 NONE l.OOE-04 ODCM REQUIRED LLD*

l.OOE-12 l.OOE-10 NONE ODCM REQUIRED LLD*

l.OOE-06 NONE l.OOE-11 NONE l.OOE-11 l.OOE-11 l.OOE-11 l.OOE-11 NONE l.OOE-11 l.OOE-11 NONE NONE l.OOE-11 NONE l.OOE-11 l.OOE-11 NONE NONE l.OOE-11 l.OOE-11 l.OOE-11

ODCM REC LLD's for weekly samples. These may be increased by a factor of 10 for daily samples.

9 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Effluent & Waste Disposable Summary LIQUID EFFLUENT LLD'S (Most restrictive)

NUCLIDE LOWER LIMITS OF DETECTION (LLD's)

UNIT LLD VALUE

1. Liquids H-3

µCi/ml 6.44E-08 Ar-41

µCi/ml 9.07E-08 Kr-85

µCi/ml 1.69E-05 Kr-85m

µCi/ml 5.94E-08 Kr-87

µCi/ml l.98E-07 Kr-88

µCi/ml 2.40E-07 Xe-133

µCi/ml l.72E-07 Xe-133m

µCi/ml 4.35E-07 Xe-135

µCi/ml 4.42E-08 Xe-135m

µCi/ml 2.0SE-06 Xe-138

µCi/ml 7.32E-06 Cr-51

µCi/ml 3.91E-07 Mn-54

µCi/ml 6.54E-08 Fe-55

µCi/ml 9.64E-07 Fe-59

µCi/ml 8.64E-08 Co-58

µCi/ml 5.38E-08 Co-60

µCi/ml 8.29E-08 Ni-63

µCi/ml 7.87E-07 Zn-65

µCi/ml 9.96E-08 Sb-124

µCi/ml 5.lSE-08 Sb-125

µCi/ml l.llE-07 Sr-89

µCi/ml 4.77E-08 Sr-90

µCi/ml 3.39E-08 Mo-99

µCi/ml 4.lSE-07 Ag-ll0m

µCi/ml 5.67E-08 1-131

µCi/ml S.59E-08 Cs-134

µCi/ml 6.34E-08 Ce-137

µCi/ml 7.66E-08 Ce-141

µCi/ml 8.94E-08 Ce-144

µCi/ml 3.31E-07 Gross Alpha

µCi/ml 7.46E-08 10 of 81 ODCM REQUIRED LLD l.00E-05 NONE NONE NONE l.0OE-05 l.00E-05 l.00E-05 l.0OE-05 l.00E-05 NONE l.00E-05 NONE 5.00E-07 l.00E-06 5.00E-07 5.00E-07 5.00E-07 NONE 5.00E-07 NONE NONE 5.00E-08 5.00E-08 5.00E-07 NONE l.00E-06 5.00E-07 5.00E-07 5.00E-07 5.00E-06 l.00E-07

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Discussion of Radiation and Radioactivity (ll 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, lodine-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 111 NATURAL MAN-MADE Source Radiation Dose Source Radiation Dose (mrem/year)

(mrem/year)

Internal, inhalation 12l 228 Medical !3l 300 External, space 33 Consumer 141 13 Internal, ingestion 29 Industrial !5l 0.3 External, terrestrial 21 Occupational 0.5 Weapons Fallout

<1 Nuclear Power Plants

<l 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 11 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Cosmic radiation from the sun and outer space penetrates the earth's 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 person's 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.

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Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Facility: Quad Cities Nuclear Power Station (QCNPS)

Licensee: Constellation Generation

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 January-December 2023 b,c.

For lodine-131, lodine-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 13 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report

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 Service water 1.54E-06 µCi/ml 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 NU REG 1302

3.

Average Energy The average gamma energy used to calculate the alarm setpoints for the noble gas monitors are as follows:

8.17E-01 MeV for Quarter 1 9.89E-01 MeV for Quarter 2 9.75E-01 MeV for Quarter 3 9.74E-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.

14 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report 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 2.84E+01 Ci of Carbon-14 and the resultant 2.84E+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/yr organ dose and 4.lSE-02 mrem/yr 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-ss, 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.

15 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report

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 LLD's used for counting effluent samples are included in this report.

5.

Batch Releases

a.

Liquid (Abnormal)

1.

Number of releases:

2.

Total Time:

3.

Maximum Time:

4.

Average Time:

5.

Minimum Time:

6.

Average Stream Flow:

b.

Gaseous

1.

NONE 1 release (2 releases) 8.06E+02 minutes (10 minutes, 10 minutes) 8.06E+02 minutes (10 minutes) 8.06E+02 minutes (10 minutes) 8.06E+02 minutes (10 minutes) 69.4 gallons per minute (10 gallons per minute) 16 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report

6.

Abnormal Releases

a.

Liquid

1.

On March 10, 2021, groundwater sample results from well QC-GP-12 showed a tritium concentration of 2.8 million pCi/L. Sample results from nearby well QC-GP-16 showed a tritium concentration of 1.9 million pCi/L. QC-GP-12 and QC-GP-16 are located in the Condensate Storage Tank and ancillary piping area. Five additional groundwater monitoring wells were installed (Stick wells #1, #2, #4, and #5, and groundwater monitoring well MW-QC-117S) for assistance with leak detection location and groundwater monitoring. A new remediation well was installed (MW-R-2D2) and remediation commenced on 3/15/21.

On March 10, 2021, 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 the 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#55132).

As part of the investigation to identify the source, the "B" Condensate Storage Tank was drained and inspected. During the inspection a hole measuring 1/4" x 5/16" (approximately the width of a pencil) was discovered on the tank floor which allowed water to seep into the surrounding groundwater. The hole was repaired prior to returning to service. In October 2022 the "B" Condensate Storage Tank floor was restored to original tank floor thickness and "A" Condensate Storage Tank floor was returned to original tank floor thickness in January 2021.

On March 12, 2021, an extraction well (MW-R-2D2) was installed near the Contaminated Condensate Storage Tank area to assist in remediating the tritium activity in groundwater.

The extraction well began pumping groundwater on March 15, 2021, with effluent routed to Quad Cities Station's permitted outfall 001/002. Between March 15, 2021, and December 20, 2021, approximately 14.9 million gallons of groundwater was pumped from the vicinity of the Condensate Storage Tank and ancillary piping area for remediation purposes.

Remediation out of MW-R-2D2 is on-going. Prior to remediation QC-GP-12 tritium concentration was 3.2 million pCi/L. As of December 9, 2021, QC-GP-12 tritium concentration was 57,400pCi/L.

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. Starting the week of August 9th 2021, due to consistently decreasing concentrations of tritium identified in the samples, sample collection was changed to a frequency of once per week. No other changes were made to the previously identified sampling and analysis frequency.

Samples were also obtained at the Discharge Bay outfall and analyzed for the same radionuclides and at the same frequency as the well samples. No samples of the discharge bay outfall showed detectable activity.

17 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report 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 3.62E+00 Ci of tritium was 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 2.65E-07 mRem to the Child/Liver dose pathway. The total body dose associated with this abnormal release was calculated to be 2.65E-07 mRem to the Child Total Body. The associated curies and doses due to this release were included in the 2021 Annual Radiological Effluent Release Report Summation of All Releases Table (page 6 of the 2021 ARERR), Mississippi River Continuous Mode (page 7 of the 2021 AR ERR) and Radiological Impact on Man (page 18 of the 2021 ARERR).

Remediation of MW-R-2D2 continued through the 2022 calendar year, from January 1st through December 31'1, 2022. A total of 1.65E+07 gallons were released to the Discharge Bay Outfall. Starting January 3rd, 2022, sampling frequency was reduced to once every two weeks. Samples have been consistently less than detectible values for Tritium (H-3) and all other analytes. Monthly composite samples continue 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. During the period that the wells were routed to the discharge bay, no tritium was detected in the well discharge at levels above the required limit of detection.

Remediation of MW-R-2D2 continued through the 2023 calendar year, from January 1'1 through December 31'1, 2023 with a bimonthly sampling frequency. A total of 1.16E+07 gallons were released to the Discharge Bay Outfall. Samples have been consistently less than detectible values for Tritium (H-3) and all other analytes. Monthly composite samples continue 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. During the period that the wells were routed to the discharge bay, no tritium was detected in the well discharge at levels above the required limit of detection.

Quad Cities Station resumed remediation in the Radwaste Vault area at monitoring wells QC-RW-1 and QC-GP-18 on June 14, 2023 after stopping remediation in the area in December of 2020 due to the underground Fire Protection Piping modification work in the area. 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 4.65E-02 Ci and 3.19E-01 Ci of tritium were released to the Mississippi River via the QC-GP-18 and QC-RW-1 abnormal releases, respectively. The associated dose impact to members of the public from the QC-GP-18 abnormal release was calculated to be 7.93E-07 mRem to the Child/Liver dose pathway. The total body dose associated with this abnormal release was calculated to be 7.93E-07 mRem to Child Total Body. The associated dose impact to members of the public from the QC-RW-1 abnormal release was calculated to be 1.0SE-07 mRem to the Child/Liver dose pathway. The total body dose associated with this abnormal release was calculated to be 1.0SE-07 mRem to the Child Total Body. The associated curies and doses due to the QC-GP-18 and QC-RW-1 releases are included in the 2023 Annual Radiological Effluent Release Report Summation of All Releases Table (page 6 of this report),

Mississippi River Continuous Mode (page 7 of this report) and Radiological Impact on Man (pages 20-21 of this report).

On July 3, 2023, 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 18 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Commission (NRC) of the 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#56606).

Station personnel performed an evaluation of SSC's (Systems, Structures and Components) and identified leakage from a degraded weld seam at the bottom of the Waste Collector Tank (WCT) within the Radwaste Building. Liquids from this system were leaking onto the concrete floor. The tritium concentration in the WCT is over 5 million pCi/L. The WCT was taken out of service and drained on July 17, 2023, and repairs were completed on July 19, 2023. After removing the standing water in the WCT room, station personnel identified two cracks in the concrete floor. These cracks, as well as seams along the perimeter of the room, were identified as a potential pathway to groundwater.

Five additional monitoring wells (QC-GP-19 through QC-GP-23) were installed on July 13 through 19, 2023, between the Radwaste Building and Cribhouse, to assist in delineating the tritium plume. On July 25, 2023, extraction well QC-RW-2 was installed and began pumping water on July 27, 2023, to assist in the remediation of the groundwater plume. QC-RW-2 originally started pumping at 20 gpm, but the groundwater extraction rate was increased to 25 gpm on July 28, 2023, and it has since been operating at this extraction rate. The operation of the extraction well at its current pumping rate has lowered the water table in the area of the Radwaste Building and Crib house by approximately three to nine feet and QC-RW-2 appears to be effectively capturing the known extent of the tritium plume. An additional well was installed at the beginning of November 2023, downgradient of the Main Chimney to evaluate if impacted groundwater was migrating north of the Cribhouse prior to the installation of extraction well QC-RW-2. Tritium has not been detected in samples collected from this additional well since being installed. Additionally, well sampling frequency was increased to monitor tritium concentrations. It should be noted that the newly installed wells are currently not a part of the station's RGPP program.

Remediation out of QC-RW-2 is on-going. A total of 5.65E+06 gallons were released to the Discharge Bay Outfall. Monthly composite samples continue 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. 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 5.16E+00 Ci of tritium was 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 1.72E-05 mRem to the Child/Liver dose pathway. The total body dose associated with this abnormal release was calculated to be 1.72E-05 mRem to the Child Total Body. The associated curies and doses due to this release are included in the 2023 Annual Radiological Effluent Release Report Summation of All Releases Table (page 6 of this report), Mississippi River Continuous Mode (page 7 of this report) and Radiological Impact on Man (pages 20-21 of this report).

During August and September 2023, two excavation projects were initiated around the Main Chimney and the Radwaste Building area to assess the condition of the Main Chimney drain lines. At the first excavation performed at the Main Chimney an approximate 4-8 drop/sec leak was found at the penetration of the north branch. At the second excavation at the Main Chimney an approximate 1.1 gpm leak was found at the penetration of the south branch.

Controls were put in place for both leaks to prevent further contamination of the ground.

The leaks were found to be permeating between the Main Chimney concrete basement slab which encases the pipe, and the pipe's outer wall. Upon completion of G-Scans, the pipe penetrations, exposed sections of pipes, and construction joints were coated with a 19 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Framatome spray which eliminated the leakage. Upon completion of work both excavations were backfilled. Samples of each of the Main Chimney leaks were analyzed and run conservatively for dose to the public. The associated dose impact to members of the public from the first Main Chimney excavation leak was calculated to be 2.95E-10 mRem to the Child/Thyroid dose pathway. The total body dose associated with this abnormal release was calculated to be 3.86E-11 mRem to the Child Total Body. The associated curies and doses due to this release are included in the 2023 Annual Radiological Effluent Release Report Summation of All Releases Table (page 6 of this report), Mississippi River Batch Mode (page 7 of this report) and Radiological Impact on Man (page 20 of this report). The associated dose impact to members of the public from the second Main Chimney excavation leak was calculated to be 5.41E-10 mRem to the Child/Thyroid dose pathway. The total body dose associated with this abnormal release was calculated to be 2.72E-10 mRem to the Adult Total Body. The associated curies and doses due to this release are included in the 2023 Annual Radiological Effluent Release Report Summation of All Releases Table (page 6 of this report), Mississippi River Batch Mode (page 7 of this report) and Radiological Impact on Man (pages 20-21 of this report).

b.

Gaseous

1.

NONE

7.

Radiological Impact on Man

a.

Liquid Dose to a Member of the Public for 2023 Total Body:

Organ:

5.60E-05 mRem (Adult) 5.19E-05 mRem (Teen/Liver)

b.

Gaseous Dose to a Member of the Public for 2023 Total Body:

4.SlE-02 mRem (Child)

Noble Gas Skin Dose:

l.00E-03 mRem/year Organ (Particulate/lodine/C-14/Tritium):

9.07E-01 mrem (Infant/Thyroid)

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 3.67E-02 mRem to organ dose (4.1%) and 3.90E-02 mrem to total body dose {86.5%).

c.

40 CFR 190 Direct Radiation Dose to a Member of the Public for 2023 Total Body:

7.54E+00 mrem 3.02E+0l% of 40CFR190 Limit of 25 mrem/year (Total Body)

Organ Dose:

9.07E-01 mrem Infant/Thyroid 20 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report 3.63E+00% of 40CFR190 Limit of 25 mrem/year (Organ Dose)

Thyroid Dose:

9.07E-01 mrem Infant/Thyroid 1.21E+00% 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:

ODCM LIQUID EFFLUENT RADIATION MONITOR INSTRUMENTATION UNAVAILABILITY On 07 /07 /23, the River Discharge Tank Flow Rate Monitor was determined to be non-functional. The 30-day restoration requirement per ODCM Section 12.2.1. was surpassed due to parts and resource availability. On 10/18/23, a batch liquid release was performed, and the ODCM Section 12.2.1. Applicability statement of "When Flow is Present In the System" was entered and the 30-day restoration requirement was surpassed. "Radioactive Liquid Monitoring Instrumentation",

Condition F.1. ODCM Section 12.2.1., Condition F.2., as well as Condition G. were entered at time of the liquid batch release.

21 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report ODCM MISSED COMPENSATORY SAMPLES Four ODCM compensatory actions were not completed within the required completion time during 2023 due to a failed solenoid valve in the Main Chimney Sampling System.

The missed compensatory actions are summarized below:

Date of Missed ODCM Instrumentation ODCM Condition Not Compensatory Required Action Compensatory Compensatory Affected Met Not Met Action Required Action Completion Time G.1. Establish CONTINUOUS 10/8/2023 Main Chimney Iodine Sampler 12.2.2., Condition G SAMPLING with auxiliary Immediately sampling equipment as required in Table 12.4.1-1.

H.l. Establish CONTINUOUS 10/8/2023 Main Chimney Particulate 12.2.2., Condition H SAMPLING with auxiliary Immediately Sampler sampling equipment as required in Table 12.4.1-1.

10/8/2023 Main Chimney Sampler Flow 12.2.2., Condition I 1.1. Estimate sample flow rate Once per 4 Hours Rate Monitor 10/20/2023 Main Chimney Noble Gas 12.2.2., Condition E.

E.1. Obtain Grab Sample Once per8hours Monitor Grab Sample 3rd and 4th QUARTER 2023 RADIOCHEMISTRY OFFSITE LABORATORY CROSSCHECK RESULTS Multiple disagreements were identified with the 2023 3rd and 4th Quarter crosscheck results between offsite vendor laboratories Teledyne Brown Engineering (TBE) and Eckert and Ziegler Analytics (EZA). The 3rd Quarter crosscheck discrepancy was a gross alpha particulate filter sample that was analyzed by TBE without the required spiked mylar cover. The mylar cover was analyzed separately and the gross alpha total concentration results were in agreement with EZA. The first 4th Quarter crosscheck discrepancy was the result of EZA incorrectly entering an isotope concentration that was not present in the crosscheck sample. The next 4th Quarter crosscheck discrepancy by EZA was due to dilution calculation errors. Once the concentration and dilution issues were resolved, three disagreements remained for Ce-141, Cr-51, and Cs-137 activity.

TBE reprepared the sample in a different geometry, reanalyzed the crosscheck samples, and the results were in agreement. A non-conformance report (NCR No. NCR 23-25) was prepared and submitted along with a revised analysis report.

22 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report 10CFR20.1301{a)(1) Compliance Assessment P 1 Quarter TEDE (mrem) 8.S0E-01 pt Quarter TEDE (mrem) 1.00E+00 Quad Cities Station Unit One and Unit Two Assessment Period: 0l/0l/2023-01/01/2024 10CFR20.1301(a)(l) Limit 100.00 mrem/year Quad Cities Unit 1 2nd Quarter 3rd Quarter 4th Quarter 8.14E-01 1.0lE+00 1.03E+00 Quad Cities Unit 2 2nd Quarter 3rd Quarter 4th Quarter 8.90E-01 9.SSE-01 9.91E-01 Year Total 3.71E+00 Year Total 3.84E+00 S b.

db Miranda Talty/~,-~~

u m1tte y: __________________

l,/'r/ __

er-Date: _4_1_19_/_2_02_4_

Miranda A. Talty Technical Review by:

Tony Stavalone I 1d ~

Date:

4/19/2024 Anthony Stavalone Reviewed by: ______

B_la_k_e_Y_o_u_n_g_l_Dt.

__ ~

__,t}_._~-----

Blake Young (I

{)

Date: ------

4/19/2024 23 of 81

% of Limit 3.71

% of Limit 3.84

Quad Cities Nuclear Power Station 2023 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) 2.25E-04 2.25E-04 10.0 2.25E-03 2.25E-03 Beta Air (mrad) 5.20E-04 5.20E-04 20.0 2.60E-03 2.60E-03 Organ (mrem) 1.36E-01 1.36E-01 15.0 9.07E-01 9.07E-01 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 09 and NUREG 0133.

24 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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

1 0

0 0

1 NNE 0

0 0

NE 0-0 0

0 0

ENE 0

0 6

0 0

0 6

E 0

0 1

1 0

0 2

ESE 0

3 6

1 0

0 10 SE 0

3 3

0 0

0 6

SSE 0

4 6

0 0

0 10 s

0 1

6 0

0 0

7 SSW 0

12 9

0 0

0 21 SW 0

2 6

0 0

0 8

WSW 0

1 8

0 0

0 9

w 0

1 2

0 0

0 3

WNW 0

0 1

0 0

0 1

NW 0

0 1

0 0

0 1

NNW 0

0 2

0 0

0 2

Variable 0

0 0

Total 0

27 58 2

0 0

87 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 :

3 25 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 0

0 3

0 0

0 3

ESE 0

1 1

0 0

0 2

SE 0

2 0

0 0

0 2

SSE 0

2 1

0 0

0 3

s 0

1 0

0 0

0 1

SSW 0

2 4

0 0

0 6

SW 0

2 2

0 0

0 4

WSW 0

2 3

0 0

0 5

w 0

0 4

1 0

0 5

WNW 0

0 3

0 0

0 3

N\\*7 0

0 2

0 0

0 2

NNv1l 0

2 0

0 0

0 2

Variable 0

0 0

Total 0

14 23 1

0 0

38 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 :

3 26 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 Stability Class - Slightly Unstable -

l 96Ft-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

0 0

2 NNE 0

2 0

0 0

0 2

NE 0

0 1

0 0

0 1

ENE 0

2 5

0 0

0 7

E 0

3 5

0 0

0 8

ESE 0

3 2

0 0

0 5

SE 0

4 1

0 0

0 5

SSE 0

3 1

0 0

0 4

s 0

3 0

0 0

0 3

SSW 0

3 4

0 0

0 7

SW 0

1 1

0 0

0 2

WSW 0

4 3

0 0

0 7

w 0

8 7

8 0

0 23 WNW 1

2 8

0 0

0 11 NW 0

4 4

0 0

0 8

NNW 0

3 8

0 0

0 11 Variable 0

0 0

Total 1

47 50 8

0 0

106 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 :

3 27 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 Stability Class -

Neutral -

196Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

9 NNE 7

NE 10 ENE 11 E

8 ESE 1

SE 4

SSE 3

S 5

SSW 7

SW 10 WSW 8

W 4

WNV'l 6

NNW 6

Variable 0

Total 103 1-3 Wind Speed (in mph) 4-7 30 15 27 51 32 20 13 25 16 20 40 45 49 60 53 43 0

53 9 8-12 27 16 19 52 39 6

8 3

2 2

12 27 111 79 46 38 0

487 13-18 7

6 0

2 3

1 0

0 0

0 1

11 40 26 0

1 0

98 Hours of calm in this stability class :

0 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 73 44 56 116 82 28 25 31 23 29 63 91 204 171 103 88 0

1227 Hours of missing stability measurements in all stability classes :

3 28 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January - March 2023 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 4

1 0

0 0

7 NNE 1

9 7

0 0

0 17 NE 11 11 4

0 0

0 26 ENE 5

14 2

0 0

0 21 E

8 15 12 0

0 0

35 ESE 1

6 10 1

0 0

18 SE 5

39 17 0

0 0

61 SSE 3

32 11 0

0 0

46 s

5 12 8

0 0

0 25 SSW 9

28 17 0

0 0

54 SW 8

20 8

1 0

0 37 WSW 8

20 3

1 0

0 32 w

9 29 2

0 0

0 40 WNW 7

26 0

0 0

0 33 NW 4

17 0

0 0

0 21 NNW 3

5 0

0 0

0 8

Variable 0

0 0

Total 89 287 102 3

0 0

481 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 :

3 29 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 Stability Class - Moderately Stable -

l 96Ft-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

6 0

0 0

6 NNE 3

0 0

0 3

NE 2

2 0

0 0

0 4

ENE 4

1 0

0 0

0 5

E 1

4 0

0 0

0 5

ESE 12 9

0 0

21 SE 13 4

0 0

17 SSE 11 3

1 0

0 0

15 s

8 3

0 0

11 SSW 9

2 0

0 0

0 11 SW 2

0 0

0 2

WSW 4

0 0

0 4

w 6

2 0

0 0

0 8

WNW 3

1 0

0 0

0 4

NW 3

1 0

0 0

0 4

NNW 6

0 0

0 6

Variable 0

0 0

Total 93 32 1

0 0

0 12 6 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 :

3 30 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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

2 NNE 3

0 0

0 3

NE 1

0 0

0 1

ENE 0

0 0

E 12 5

0 0

17 ESE 12 3

0 0

15 SE 11 0

0 0

11 SSE 9

0 0

0 9

s 5

2 0

0 0

0 7

SSW 5

0 0

0 5

SW 1

0 0

0 1

WSW 6

1 0

0 0

0 7

w 4

0 0

0 4

WNW 4

0 0

0 4

NW 5

0 0

0 5

NNW 1

0 0

0 1

Variable 0

0 0

Total 81 11 0

0 0

0 92 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 :

3 31 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 0

0 0

3 0

0 3

ESE 0

0 0

0 1

SE 0

0 0

1 1

0 2

SSE 0

0 1

2 0

0 3

s 0

0 0

1 2

0 3

SSW 0

0 2

1 4

0 7

SW 0

0 3

0 1

0 4

WS \\,11 0

0 1

3 0

0 4

w 0

0 0

1 0

0 1

WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 0

0 7

12 9

0 28 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 :

3 32 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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

1 0

0 0

1 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

1 0

0 1

E 0

0 1

1 0

0 2

ESE*

0 0

0 2

1 0

3 SE 0

0 4

1 1

0 6

SSE 0

0 4

0 0

0 4

s 0

0 0

1 1

0 2

SSW 0

0 3

4 0

0 7

SW 0

1 4

3 0

0 8

WSW 0

0 4

3 0

0 7

w 0

2 2

1 0

0 5

WNW 0

0 1

1 0

0 2

N~'7 0

0 0

3 0

0 3

NNW 0

0 2

1 0

0 3

Variable 0

0 0

Total 0

3 2 6 22 3

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 :

3 33 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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

1 0

0 0

0 1

NE 0

0 0

ENE 0

0 2

0 0

0 2

E 0

2 2

3 0

0 7

ESE 0

2 2

2 3

0 9

SE 0

0 5

2 1

0 8

SSE 0

1 2

1 5

0 9

s 1

1 2

1 0

0 5

SSW 0

0 2

1 1

0 4

SW 0

1 7

5 1

0 14 WSW 1

0 3

0 2

0 6

w 0

2 6

6 2

2 18 WNv-l 0

1 1

4 4

2 12 NW 0

0 7

4 0

0 11 NNW 0

0 6

3 1

0 10 Variable 0

0 0

Total 2

12 48 32 20 4

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 :

3 34 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January - March 2023 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 11 23 26 8

3 72 NNE 2

13 13 11 7

1 47 NE 3

12 10 26 11 0

62 ENE 0

17 18 26 8

0 69 E

2 12 25 45 5

0 89 ESE 3

13 14 25 1 8 4

77 SE 1

12 7

3 5

1 29 SSE 3

5 6

23 8

0 45 s

0 9

7 7

4 1

28 SSW 0

9 6

10 2

0 27 SW 1

12 14 9

5 0

41 WSW 5

19 35 28 7

4 98 w

2 12 30 47 54 13 158 WNW 2

9 39 45 74 24 193 NW 1

17 45 68 18 4

153 NNW 1

19 38 42 8

2 110 Variable 0

0 0

Total 2 7 201 330 441 242 57 1298 Hours of calm in this stability class :

0 Hours of missing wind measurements in this stability class :

19 Hours of missing stability measurements in all stability classes :

3 35 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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 1

2 3

1 0

7 NNE 0

1 5

1 0

0 7

NE 1

4 6

3 0

0 14 ENE 0

1 10 4

0 0

15 E

0 4

17 11 0

0 32 ESE 0

3 5

9 8

0 25 SE 0

0 2

8 10 5

25 SSE 0

1 1

24 17 7

50 s

1 1

4 2 '1 10 6

46 SSW 1

0 7

17 19 5

49 SW 0

0 12 26 15 2

55 WSW 2

2 5

lJ 5

0 25 w

0 2

10 10 0

0 22 WNW 1

2 5

21 0

0 29 Nv~

1 5

6 13 0

0 25 NNW 0

3 15 10 0

0 28 Variable 0

0 0

Total 7

30 112 195 85 25 454 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 :

3 36 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 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

4 1

0 0

6 NNE 0

0 4

0 0

0 4

NE 0

4 8

0 0

0 12 ENE 0

1 4

0 0

0 5

E 0

2 5

1 0

0 8

ESE 0

1 1

5 0

0 7

SE 0

0 1

4 2

0 7

SSE 0

1 2

8 0

0 11 s

2 2

3 6

0 0

13 SSW 0

2 4

18 2

0 26 SW 0

0 15 3

0 0

18 WSW 0

0 3

0 0

0 3

w 0

4 6

0 0

0 10 WNW 1

1 4

1 0

0 7

NW 0

4 3

1 0

0 8

NNW 0

5 1

1 0

0 7

Variable 0

0 0

Total 3

28 68 49 4

0 152 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 :

3 37 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : January -

March 2023 Stability Class -

Extremely Stable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW w

WNW NNW Variable Total 0

0 0

0 1

0 0

1 1-3 Wind Speed (in mph) 4-7 0

0 1

0 0

0 1

1 0

0 0

3 8-12 0

0 0

0 1

3 3

4 3

0 0

14 13-18 0

0 0

3 5

2 6

0 0

16 Hours of calm in this stability class :

0 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 0

0 1

0 0

3 7

5 9

4 4

1 0

0 0

34 Hours of missing stability measurements in all stability classes :

3 38 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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

1 0

0 0

2 NNE 0

4 12 0

0 0

16 NE 0

12 15 0

0 0

27 ENE 0

10 27 0

0 0

37 E

0 12 13 0

0 0

25 ESE 0

9 10 0

0 0

19 SE 0

24 8

0 0

0 32 SSE 0

18 21 0

0 0

39 s

0 6

4 0

0 0

10 SSW 0

25 14 0

0 0

39 SW 0

10 10 1

0 0

21 WSW 0

1 4

2 0

0 7

w 0

6 6

0 0

0 12 WNW 0

3 11 10 0

0 24 NW 0

3 5

1 0

0 9

NNW 0

0 8

0 0

0 8

Variable 0

0 0

Total 0

144 1 69 14 0

0 327 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 :

4 39 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April - June 2023 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 NNE 0

2 3

0 0

0 5

NE 0

9 1

0 0

0 10 ENE 0

9 2

0 0

0 11 E

0 4

1 0

0 0

5 ESE 0

2 0

0 0

0 2

SE 0

6 1

0 0

0 7

SSE 0

2 0

0 0

0 2

s 0

1 0

0 0

0 1

SSW 0

4 1

0 0

0 5

Slr.J 0

3 1

0 0

0 4

WSW 0

6 1

0 0

0 7

w 0

3 1

0 0

0 4

li*JNW 0

3 3

3 0

0 9

NW 0

4 0

2 0

0 6

NNW 0

0 4

0 0

0 4

Variable 0

0 0

Total 0

58 19 5

0 0

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 :

4 40 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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

3 0

0 0

8 NNE 0

4 1

0 0

0 5

NE 0

14 2

0 0

0 16 ENE 1

6 2

0 0

0 9

E 0

10 4

0 0

0 14 ESE 0

13 3

0 0

0 16 SE 0

4 0

0 0

0 4

SSE 0

4 0

0 0

0 4

s 0

9 1

0 0

0 10 SSW 0

8 0

0 0

0 8

SW 0

8 1

0 0

0 9

WSW 0

8 3

0 0

0 11 w

0 11 3

6 0

0 20 WNW 0

3 1

2 0

0 6

NW 0

7 5

2 0

0 14 NNW 0

5 1

0 0

0 6

Variable 0

0 0

Total 1

119 30 10 0

0 160 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 :

4 41 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 Stability Class -

Neutral -

l 96Ft-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

> 2 4 Total N

2 6

13 0

0 0

21 NNE 3

15 14 1

0 0

3 3 NE 4

44 25 1

0 0

74 ENE 1

41 29 0

0 0

71 E

4 25 9

1 0

0 39 ESE 7

21 3

0 0

0 31 SE 6

22 2

0 0

0 30 SSE 3

4 2

0 0

0 9

s 2

6 1

0 0

0 9

SSW 2

14 1

0 0

0 17 SW 4

12 5

0 0

0 21 WSW 4

10 8

14 0

0 36 w

5 25 57 21 0

0 108 WNW 2

26 58 21 0

0 107 NW 3

9 9

8 0

0 29 NNW 3

11 8

0 0

0 22 Variable 0

0 0

Total 55 291 244 67 0

0 657 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 :

4 42 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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 10 6

0 0

0 21 NNE 5

8 2

0 0

0 15 NE 17 8

0 0

25 ENE 8

47 4

1 0

0 60 E

7 28 6

0 0

0 41 ESE 14 16 1

1 0

0 32 SE 11 16 0

0 0

0 27 SSE 6

8 3

0 0

0 17 s

3 4

0 0

7 SSW 3

17 4

0 0

0 24 SW 8

9 2

0 0

0 19 WSW 6

3 1

0 0

0 10 w

5 14 1

0 0

0 20 WNW 5

15 3

0 0

0 23 Nt,,J 5

14 1

1 0

0 21 NNW 3

12 0

0 0

0 15 Variable 0

0 0

Total 111 229 34 3

0 0

377 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 :

4 43 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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

12 0

1 0

0 0

13 NNE 9

4 0

0 0

0 13 NE 20 6

0 0

26 ENE 26 7

0 0

33 E

29 12 1

0 0

0 42 ESE 25 4

0 0

29 SE 22 3

0 0

25 SSE 6

8 0

0 0

0 14 s

6 6

0 0

12 SSW 6

8 0

0 0

0 14 SW 7

1 1

0 0

0 9

WSW 4

1 0

0 0

0 5

w 9

3 0

0 0

0 12 WNW 7

0 0

0 7

NW 3

0 0

0 3

NNW 6

0 0

0 6

Variable 0

0 0

Total 197 63 3

0 0

0 263 Hours of calm in this stability class :

5 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measurements in all stability classes :

4 44 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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

15 0

0 0

15 NNE 18 0

0 0

18 NE 31 0

0 0

31 ENE 17 0

0 0

17 E

29 4

0 0

33 ESE 29 4

0 0

33 SE 26 2

0 0

28 SSE 7

2 0

0 0

0 9

s 9

0 0

0 9

SSW 9

0 0

0 9

SW 13 0

0 0

13 WSW 13 0

0 0

13 w

17 0

0 0

17 WNW 18 0

0 0

18 N~'7 11 0

0 0

11 NNW 19 0

0 0

19 Variable 0

0 0

Total 281 12 0

0 0

0 293 Hours of calm in this stability class :

16 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measurements in all stability classes :

4 45 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 Stability Class -

Extremely Unstable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW S\\>7 WSW w

WNW Nl~

NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 0

0 0

1 0

0 0

1 8-12 0

1 4

14 3

7 1

7 2

7 4

0 0

1 1

0 0

52 13-18 0

1 5

3 5

6 1

10 9

5 7

0 0

0 2

1 0

55 Hours of calm in this stability class :

0 19-24 0

0 0

1 0

4 8

2 3

0 0

0 19

> 24 0

0 0

1 1

0 0

0 1

0 0

3 Hours of missing wind measurements in this stability class :

0 Total 0

2 9

17 8

14 2

23 20 14 14 1

1 1

3 1

0 130 Hours of missing stability measurements in all stability classes :

4 46 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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

0 0

2 NNE 0

0 2

1 0

0 3

NE 0

1 12 2

0 0

15 ENE 0

2 19 3

0 0

24 E

0 1

9 1

0 0

11 ESE 0

1 6

0 0

0 7

SE 0

2 3

7 0

0 12 SSE 0

2 4

3 0

0 9

s 0

3 1

3 2

1 10 SSW 0

3 8

2 0

0 13 SW 0

2 6

0 0

0 8

WSW 0

0 1

4 2

0 7

w 0

0 1

0 2

WNW 0

2 4

5 3

0 14 NW 0

0 4

6 1

3 14 NNW 0

1 7

1 0

0 9

Variable 0

0 0

Total 0

20 89 38 9

4 160 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 :

4 47 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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 3

2 0

0 0

5 NNE 0

1 2

1 0

0 4

NE 0

10 3

0 0

0 13 ENE 0

9 8

2 0

0 19 E

0 7

4 2

0 0

13 ESE 0

1 9

2 1

0 13 SE 0

10 7

5 0

0 22 SSE 0

5 4

5 0

0 14 s

0 3

7 1

0 1

12 SSW 0

4 9

1 1

0 15 SW 0

5 9

1 1

0 16 WSW 0

3 1

2 1

0 7

w 0

7 1

0 0

3 11 v/NW 0

4 2

3 2

1 12 NW 0

4 2

1 3

12 22 NN\\iil 0

4 8

2 0

0 14 Variable 0

0 0

Total 0

80 78 28 9

17 212 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 :

4 48 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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 7

2 6

1 0

18 NNE 0

7 6

16 2

0 31 NE 4

12 16 22 9

1 64 ENE 0

10 29 42 14 0

95 E

1 9

17 12 9

1 49 ESE 1

11 18 4

1 0

35 SE 0

6 11 12 0

0 29 SSE 1

3 6

12 2

0 24 s

1 4

8 5

2 0

20 SSW 0

6 2

3 0

0 11 SW 1

10 8

6 1

0 26 WSW 2

11 4

1 3

2 23 w

0 7

3 14 20 21 65 WNW 4

5 11 62 28 4

114 NW 2

6 12 18 24 24 86 NNW 1

9 8

8 7

2 35 Variable 0

0 0

Total 20 123 1 61 2 43 123 55 725 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 :

4 49 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April - June 2023 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 1

7 9

0 1

19 NNE 1

5 3

4 1

0 14 NE 0

1 5

9 0

0 15 ENE 0

2 10 16 0

1 2 9 E

0 4

34 15 1

0 54 ESE 0

3 10 22 1

1 37 SE 0

1 17 20 2

1 41 SSE 0

1 17 23 4

2 47 s

2 0

7 12 2

1 24 SSW 1

3 7

4 10 0

25 SW 1

2 7

9 13 0

32 WSW 2

0 2

5 1

0 10 v,J 0

4 4

4 0

0 12 t'7NW l

4 7

3 1

0 16 NW 0

3 3

9 1

0 16 NNW 0

l 8

14 0

0 23 Variable 0

0 0

Total 35 148 178 37 7

414 Hours of calm in this stability class :

0 Hours of missing wind measurements in this stability class :

14 Hours of missing stability measurements in aJ.J. stability classes :

4 50 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 Stability Class - Moderately Stable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW WNW NW NNW Variable Total 0

0 0

0 1

0 0

2 0

0 1

0 0

5 1-3 Wind Speed (in mph) 4-7 1

0 5

4 5

5 2

3 3

2 2

2 7

3 2

4 0

50 8-12 1

1 7

12 29 17 10 10 3

5 2

4 5

7 5

7 0

125 13-18 0

0 3

0 12 14 19 21 8

16 5

2 0

2 3

1 0

106 Hours of calm in this stability class :

1 19-24 0

0 0

1 0

5 7

3 1

0 0

17

> 24 0

0 0

1 0

0 0

2 Hours of missing wind measurements in this stability class :

7 Total 2

1 15 16 47 38 32 40 21 26 10 10 12 12 11 12 0

305 Hours of missing stability measurements in all stability classes :

4 51 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : April -

June 2023 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

1 0

0 0

4 NNE 1

2 0

0 0

0 3

NE 0

0 2

0 0

0 2

ENE 0

1 4

0 0

0 5

E 0

6 7

2 0

0 15 ESE 1

1 9

9 0

0 20 SE 0

4 7

6 1

0 18 SSE 0

6 6

9 0

0 21 s

1 9

11 10 1

0 32 SSW 0

6 5

4 0

0 15 SW 0

4 6

6 0

0 16 WS1,r,J 2

6 5

3 0

0 16 T;)

2 3

7 0

0 0

12 WNW 2

0 4

0 0

0 6

NW 1

3 1

0 0

0 5

NNW 0

1 0

0 0

0 1

Variable 0

0 0

Total 10 55 75

'i9 2

0 19 1 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 :

4 52 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class -

Extremely Unstable -

196Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW w

WNW NW NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 2

2 16 3

1 9

19 31 19 24 14 20 9

10 5

3 0

187 8-12 6

7 5

4 0

5 5

5 1

8 9

7 3

10 14 7

0 96 13-18 0

1 0

0 0

1 Hours of calm in this stability class :

0 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 8

10 21 7

1 14 24 36 20 32 23 27 12 20 19 10 0

284 Hours of missing stability measurements in all stability classes :

1 53 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class - Moderately Unstable -

196Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW Nv,J NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 1

0 5

5 1

1 9

5 5

8 4

4 6

2 4

4 0

64 8-12 0

1 0

0 3

1 0

0 0

1 2

1 0

10 13-18 0

0 0

0 Hours of calm in this stability class :

0 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 1

1 5

6 1

1 12 6

5 8

4 4

6 3

6 5

0 74 Hours of missing stability measurements in all stability classes :

1 54 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Reco rd : July -

September 2023 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 11 4

0 0

0 15 NNE 0

4 0

0 0

0 4

NE 1

11 1

0 0

0 13 ENE 0

5 1

0 0

0 6

E 0

7 0

0 0

0 7

ESE 0

7 1

0 0

0 8

SE 0

9 0

0 0

0 9

SSE 0

11 0

0 0

0 11 s

0 7

0 0

7 SSW 0

21 0

0 0

0 21 SW 0

10 1

0 0

0 11 WSW 0

17 2

0 0

0 19 w

1 12 2

0 0

0 15 WNW 0

10 2

0 0

0 12 NW 0

14 2

0 0

0 16 NNW 0

11 2

0 0

0 13 Variable 0

0 0

Total 2

167 18 0

0 0

187 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 55 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class -

Neutral -

196Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

3 NNE 8

NE 6

ENE 8

E 3

ESE 9

SE 12 SSE 12 S

7 SSW 6

Sl'if 14 WSW 8

w 3

WNW 6

NW 7

NNW 5

Variable 0

Total 11 7 1-3 Wind Speed (in mph) 4-7 47 23 19 20 27 23 24 28 12 15 20 28 18 27 24 29 0

38 4 8-12 8

1 2

2 4

6 4

0 0

3 2

10 7

3 1

6 0

59 13-18 1

0 0

1 Hours of calm in this stability class :

1 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 59 32 27 30 34 38 40 40 19 24 36 46 28 36 32 40 0

5 61 Hours of missing stability measurements in all stability classes :

1 56 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 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

13 16 2

0 0

0 31 NNE 12 14 0

0 0

0 26 NE 21 14 2

0 0

0 37 ENE 15 26 2

0 0

0 43 E

26 18 0

0 0

0 44 ESE 27 23 5

0 0

0 55 SE 32 9

0 0

41 SSE 9

5 0

0 0

0 14 s

14 10 0

0 0

0 24 SSW 13 23 0

0 0

0 36 SW 22 23 0

0 0

0 45 WSW 21 16 0

0 0

0 37 w

15 14 0

0 0

0 29 WNW 21 24 0

0 0

0 45 N~l 17 21 1

0 0

0 39 NNW 10 19 0

0 0

0 29 Variable 0

0 0

Total 288 275 12 0

0 0

575 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 :

l 57 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class - Moderately Stable -

l 96Ft-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

6 3

0 0

9 NNE 10 2

0 0

12 NE 10 1

0 0

11 ENE 13 0

0 0

1 3 E

41 6

0 0

47 ESE 48 4

0 0

52 SE 23 1

0 0

24 SSE 16 1

0 0

17 s

8 3

0 0

11 SSW 9

0 0

0 9

SW 8

1 0

0 0

0 9

WSW 9

1 0

0 0

0 10 v'1 19 5

0 0

24

\\AlN\\l*l 18 10 0

0 0

0 28 NW 6

0 0

0 6

NNv*l 4

0 0

0 4

Variable 0

0 0

Total 248 38 0

0 0

0 286 Hours of calm in this stability class :

12 Hours of missing wind measurements in lhis stability class :

0 Hours of missing stability measurements in all stability classes :

1 58 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 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

5 0

0 0

5 NNE 8

0 0

0 8

NE 11 0

0 0

11 ENE 20 0

0 0

20 E

30 1

0 0

31 ESE 20 1

0 0

21 SE 13 0

0 0

13 SSE 11 1

0 0

12 s

5 0

0 0

5 SSW 4

0 0

0 4

SW 5

0 0

0 5

WSW 2

0 0

0 2

w 8

1 0

0 0

0 9

WNW 7

0 0

0 7

NW 7

0 0

0 7

NNW 2

0 0

0 2

Variable 0

0 0

Total 158 4

0 0

162 Hours of calm in this stability class :

64 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measurements in all stability classes :

1 59 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class -

Extremely Unstable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW w

NW NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 0

0 0

0 8-12 0

0 4

0 1

0 2

9 7

4 5

2 0

1 3

0 39 13-18 0

0 2

1 0

0 0

2 7

8 2

11 0

0 0

3 0

36 Hours of calm in this stability class :

0 19-24 0

0 2

0 0

2 1

0 0

0 2

0 0

7

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 0

0 8

1 1

0 2

13 15 12 7

13 1

0 3

6 0

82 Hours of missing stability measurements in all slability classes :

1 60 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class - Moderately Unstable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW w

WNW NW NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 0

0 1

1 0

0 2

0 4

2 3

1 1

0 0

15 8-12 3

3 6

7 1

2 7

8 14 7

4 9

11 5

12 3

0 102 13-18 2

0 2

3 0

0 3

5 2

3 0

3 2

5 0

33 Hours of calm in this stability class :

0 19-24 0

0 1

0 0

2 0

0 0

0 4

0 0

7

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 5

3 10 11 1

2 12 10 21 14 9

13 12 8

18 8

0 157 Hours of missing stability measurements in all stability classes :

1 61 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class - Slightly Unstable - 296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Speed (in mph) vhnd Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 4

11 1

0 0

1 NNE 0

5 1

0 0

0 6

NE 0

8 5

1 0

0 14 ENE 0

6 8

1 0

0 15 E

0 2

1 0

0 0

3 ESE 0

3 1

0 0

0 4

SE 0

5 4

2 1

0 12 SS E 0

5 11 6

2 0

24 s

0 3

8 4

0 0

15 SSW 0

7 9

0 0

0 16 S~'i 0

9 3

2 0

0 14 WSW 0

8 3

3 0

0 14 w

0 5

8 1

0 0

14

\\1JNW 0

8 0

0 0

0 8

NW 0

4 12 9

1 0

26 NNW 0

2 9

0 0

0 11 Variable 0

0 0

Total 0

84 94 30 4

0 2 12 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 :

1 62 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class - Neutral -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WNW Nv-7 NNW Variable Total 1

5 3

1 4

0 2

1 3

2 2

2 3

2 4

4 0

39 1-3 Wind Speed (in mph) 4-7 19 13 12 12 11 9

8 16 10 12 26 15 17 10 10 13 0

2 13 8-12 42 20 4

15 7

10 14 15 13 11 4

13 16 7

12 18 0

221 13-18 13 3

6 5

7 14 13 13 15 6

10 11 16 5

16 11 0

1 64 Hours of calm in this stability class :

0 19-24 0

0 2

0 1

2 2

4 0

3 3

2 2

1 2

1 0

25

> 24 0

1 0

0 0

1 Hours of missing wind measurements in this stability class :

4 Total 75 42 27 33 30 35 39 49 41 34 45 43 54 25 44 47 0

66 3 Hours of missing stability measurements in all stability classes :

1 63 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 Stability Class - Slightly Stable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WS\\ill WNW NW NNW Variable Total 0

0 0

2 l

0 1

2 0

2 1

1 2

0 2

2 0

16 1-3 Wind Speed (in mph) 4-7 4

12 3

2 6

4 2

4 4

3 2

7 7

5 0

6 0

71 8-12 22 16 14 36 17 19 8

22 14 9

11 14 15 5

16 29 0

267 13-18 12 9

9 7

9 16 23 25 24 16 25 17 9

3 7

11 0

222 Hours of calm in this stability class :

0 19-24 0

1 0

5 5

1 0

2 1

0 0

0 1

0 0

17

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 38 38 26 48 33 44 39 54 42 32 40 39 33 13 26 48 0

593 Hours of missing stability measurements in all stability classes :

l 64 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July - September 2023 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

2 3

13 1

0 0

19 NNE 1

4 5

0 0

0 10 NE 3

5 9

2 0

0 19 ENE 1

4 8

1 0

0 14 E

0 2

13 1

0 0

16 ESE 0

2 3

4 0

0 9

SE 2

3 14 10 4

0 33 SSE 2

5 12 26 1

0 46 s

0 8

15 12 0

0 35 SSW 2

9 19 19 1

0 50 SW 0

4 6

3 0

0 13 WSW 0

6 5

3 0

0 14 w

0 5

7 2

0 0

14 WNW 1

4 3

7 0

0 15 NW 3

7 11 2

0 0

23 NNW 2

9 4

1 0

0 16 Variable 0

0 0

Total 19 80 147 94 6

0 346 Hours of calm in this stability class :

1 Hours of missing wind measurements in this stability class :

5 Hours of missing stability measurements in all stability classes :

1 65 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : July -

September 2023 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 2

0 0

2 NNE 1

1 1

0 0

0 3

NE 0

3 0

0 0

0 3

ENE 0

0 0

E 2

3 2

0 0

0 7

ESE 0

6 3

0 0

0 9

SE 1

2 7

1 0

0 11 SSE 2

6 5

10 1

0 24 s

0 1

6 9

0 0

16 SS\\.17 0

2 2

6 0

0 10 SW 0

1 9

1 0

0 11 WSW 0

4 3

2 0

0 9

w 1

3 5

0 0

0 9

WNVI 2

2 5

0 0

0 9

1,m 1

3 1

0 0

0 5

NNW 1

1 1

0 0

0 3

Variable 0

0 0

Total 11 40 50 29 1

0 131 Hours of calm in this stability class :

1 Hours of missing wind measurements in this stability class :

7 Hours of missing stability measurements in all stability classes :

1 66 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 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

0 1

0 0

0 1

NE 0

0 0

ENE 0

0 1

0 0

0 1

E 0

1 0

0 0

0 1

ESE 0

0 0

SE 0

4 2

0 0

0 6

SSE 0

4 3

0 0

0 7

s 0

1 6

0 0

0 7

SSW 0

15 11 0

0 0

26 SW 0

3 6

0 0

0 9

WSW 0

2 1

0 0

0 3

w 0

3 6

0 0

0 9

\\i<JNW 0

1 10 1

0 0

12 NW 0

0 7

0 0

0 7

NNW 0

0 3

0 0

0 3

Variable 0

0 0

Total 0

34 59 1

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 :

425 67 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class - Moderately Unstable -

196Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW NW NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 0

0 1

5 1

1 2

5 2

1 0

0 1

0 0

20 8-12 2

2 0

1 0

0 0

0 1

1 4

3 2

5 3

0 0

24 13-18 0

0 0

0 Hours of calm in this stability class :

0 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 2

2 1

1 1

5 1

1 3

6 6

4 2

5 4

0 0

44 Hours of missing stability measurements in all stability classes :

425 68 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class - Slightly Unstable -

l 96Ft-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

4 1

0 0

5 NNE 0

4 1

0 0

0 5

NE 0

4 0

0 0

0 4

ENE 0

4 3

0 0

0 7

E 0

2 1

0 0

0 3

ESE 0

0 0

SE 0

0 1

0 0

0 1

SSE 0

3 0

0 0

0 3

s 0

2 1

0 0

0 3

SSW 0

7 1

0 0

0 8

SW 0

2 1

0 0

0 3

WSW 0

3 4

0 0

0 7

\\iii 0

2 7

1 0

0 10 WNW 0

3 4

1 0

0 8

NW 0

1 3

1 0

0 5

NNW 0

3 4

0 0

0 7

Variable 0

0 0

Total 0

40 35 4

0 0

79 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 :

425 69 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class -

Neutral -

196Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

NNE NE ENE E

ESE SE SS E s

SSW SW WSW WNW Nv,J NNW Variable Total 1

1 0

3 7

14 7

2 5

4 4

2 4

0 5

0 0

5 9 1-3 Wind Speed (in mph) 4-7 22 12 10 34 20 21 20 24 18 23 14 26 31 45 21 17 0

358 8-12 46 13 7

14 27 7

0 0

2 5

12 13 47 49 16 17 0

275 13-18 3

3 0

1 3

3 0

0 0

0 2

1

] 2 2

0 1

0 31 Hours of calm in this stability class :

0 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 72 29 17 52 57 45 27 26 25 32 32 42 94 96 42 35 0

723 Hours of missing slability measuremenls in all stability classes :

425 70 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class - Slightly Stable -

196Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

7 NNE 7

NE 15 ENE 8

E 16 ESE 15 SE 4

SSE 11 S

2 SSW 6

SW 11 WSW 11 W

7 WNW 6

NW 4

NNW 2

Variable 0

Total 132 1-3 Wind Speed (in mph) 4-7 10 6

10 15 12 11 11 29 17 32 22 23 73 52 7

14 0

344 8-12 4

1 2

1 6

3 2

1 4

6 1

8 2

4 0

0 0

45 13-18 0

0 0

0 1

0 0

1 Hours of calm in this stability class :

1 19-24 0

0 0

0

> 24 0

0 0

0 Hours of missing wind measurements in this stability class :

0 Total 21 14 27 24 34 29 17 41 23 44 34 42 83 62 11 16 0

522 Hours of missing stability measurements in all stability classes :

425 71 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class -

Moderately Stable -

l 96Ft-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

1 NNE 5

0 0

0 5

NE 6

l 0

0 0

0 7

ENE 1

3 0

0 0

0 4

E 7

3 1

0 0

0 11 ESE 8

l 0

0 0

0 9

SE 25 6

0 0

31 ssi::

10 3

0 0

13 s

5 3

0 0

8 SSW 3

2 0

0 0

0 5

Sv~

1 0

0 0

1 ws~,1 5

0 0

0 5

w 6

3 0

0 0

0 9

WNW 14 2

0 0

16 NI*)

2 3

0 0

5 NN\\rl 1

0 0

0 1

Variable 0

0 0

Total 100 30 1

0 0

0 131 Hours of calm in this stability class :

3 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measuremenls in all stability classes :

425 72 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 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

1 0

0 0

1 NNE 3

0 0

0 3

NE 2

0 0

0 2

ENE 10 0

0 0

10 E

23 3

0 0

26 ESE 34 3

0 0

37 SE 17 0

0 0

17 SSE 17 2

0 0

19 s

5 0

0 0

5 SSW 1

0 0

0 1

S~J 6

0 0

0 6

WSW 6

0 0

0 6

w 10 0

0 0

10 WNW 5

2 0

0 0

0 7

NJi,J 3

0 0

0 3

NNW 1

0 0

0 1

Variable 0

0 0

Total 1 44 10 0

0 0

0 15 4 Hours of calm in this stability class :

32 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measurements in all stability classes :

425 73 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class -

Extremely Unstable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSli'l SW WSW WNW NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 0

0 0

0 8-12 0

0 0

3 1

0 0

4 13-18 0

0 0

0 2

6 3

0 1

1 1

0 0

14 Hours of calm in this stability class :

0 19-24 0

0 0

1 2

4 0

0 0

7

> 24 0

0 0

2 0

0 0

2 Hours of missing wind measurements in this stability class :

0 Total 0

0 0

3 4

13 4

0 1

1 1

0 0

27 Hours of missing stability measurements in all stability classes :

41 74 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class - Moderately Unstable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW NW NNW Variable Total 0

0 0

0 1-3 Wind Speed (in mph) 4-7 0

0 0

0 1

0 0

1 8-12 0

1 0

0 0

1 1

2 1

6 2

0 2

1 0

0 0

17 13-18 0

0 0

0 1

0 0

0 2

7 0

1 2

3 9

4 0

29 Hours of calm in this stability class :

0 19-24 0

0 0

0 3

0 0

0 1

0 0

4

> 24 0

0 0

1 0

0 0

1 Hours of missing wind measurements in this stability class :

0 Total 0

1 0

0 1

1 1

2 6

14 2

1 5

4 10 4

0 52 Hours of missing stability measurements in all stability classes :

41 75 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 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

1 6

0 0

9 NNE 0

0 4

0 0

0 4

NE 0

2 1

0 0

0 3

ENE 0

0 1

1 0

0 2

E 0

0 1

4 0

0 5

ES E 0

1 3

0 0

0 4

SE 0

0 3

2 0

0 5

SSE 0

2 3

0 0

0 5

s 0

0 2

2 1

0 5

SSW 0

2 8

4 0

0 14 SW 0

1 6

5 1

0 13 WSW 0

1 3

3 0

0 7

w 0

0 2

4 3

0 9

\\,*)NW 0

0 1

8 2

0 11 NW 0

0 5

8 3

3 19 NNW 0

1 1

4 0

0 6

Variable 0

0 0

Total 0

12 45 51 10 3

121 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 :

41 76 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class - Neutral -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW w

WNW NW NNW Variable Total 0

2 3

0 2

0 1

1 3

0 0

1 2

0 1

0 0

16 1-3 Wind Speed (in mph) 4-7 7

5 8

4 9

8 11 8

5 15 6

11 6

4 4

5 0

116 8-12 18 25 5

5 17 15 16 19 9

10 12 14 25 30 26 19 0

265 13-18 41 26 23 13 25 9

18 10 31 25 16 10 48 62 57 23 0

437 Hours of calm in this stability class :

0 19-24 6

11 9

2 10 9

1 1

5 10 5

4 25 25 19 1

0 143

> 24 0

0 0

0 2

14 0

1 0

0 2

0 3

7 7

2 0

38 Hours of missing wind measurements in this stability class :

0 Total 72 69 48 24 65 55 47 40 53 60 41 40 109 128 114 50 0

1015 Hours of missing stability measurements in all stability classes :

41 77 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class - Slightly Stable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW w

NW NNW Variable Total 2

0 0

0 1

1 0

0 3

0 2

0 0

9 1-3 Wind Speed (in mph) 4-7 3

3 2

2 5

6 4

1 1

3 1

2 2

0 2

4 0

41 8-12 5

2 9

4 16 15 11 9

6 16 7

4 16 20 23 10 0

173 13-18 17 1

3 2

11 5

14 32 39 43 22 12 15 46 33 4

0 2 99 Hours of calm in this stability class :

0 19-24 0

0 0

1 1

6 6

3 16 19 6

1 2

4 1

0 0

6

> 24 0

0 0

4 1

0 0

5 Hours of missing wind measurements in this stability class :

0 Total 27 6

14 9

33 32 36 46 62 85 40 19 37 70 59 18 0

59 3 Hours of missing stability measurements in all stability classes :

41 78 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 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 4

3 1

0 0

8 NNE 0

1 1

3 0

0 5

NE 0

0 0

ENE 0

1 1

2 0

0 4

E 0

1 3

5 0

0 9

ESE 0

2 1

0 0

0 3

SE 0

0 1

7 1

0 9

SSE 0

2 10 8

3 0

23 s

0 1

9 15 5

0 30 SSW 0

1 5

21 1

0 28 SW 0

2 0

1 2

0 5

WSW 1

4 1

4 0

0 10 w

2 2

0 1

0 0

5 WNW 0

5 5

2 0

0 12 NW 0

5 6

7 0

0 18 NNW 2

1 6

0 0

0 9

Variable 0

0 0

Total 5

32 52 77 12 0

178 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 :

41 79 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Generating Station Period of Record : October -

December 2023 Stability Class -

Extremely Stable -

296Ft-33Ft Delta-T (F)

Winds Measured at 296 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW S!f\\l WSW WNW NW NNW Variable Total 0

1 0

0 0

0 1

0 0

4 l

2 0

l 0

1 0 1-3 Wind Speed (in mph) 4-7 0

2 1

1 1

1 2

1 3

3 5

4 7

3 0

37 8-12 1

5 1

1 2

3 1

3 15 l

4 2

5 1

4 2

0 5 1 13-18 1

0 0

1 2

10 25 25 9

1 2

1 1

0 0

78 Hours of calm in this stability class :

0 19-24 0

0 0

2 2

1 0

0 0

5

> 24 0

0 0

0 Hours of missing wind measurements in lhis stability class :

0 Total 2

8 2

3 3

5 4

16 45 28 16 10 13 8

12 6

0 181 Hours of missing stability measurements in all stability classes :

41 80 of 81

Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Quad Cities Nuclear Power Station 2023 Annual Radioactive Effluent Release Report Solid Waste and Irradiated Fuel Shipments Page 1 of 1 A.

Solid Waste shipped Offsite for Burial or Disposal (Not irradiated fuel)

1.

Types of Waste Types of Waste Total Quantity (m3)

a. Spent resins, filter sludges, evaporator bottoms, etc 9.29E+01

b. Dry comoressed waste, contaminated equip, etc 6.07E+02

c. Irradiated components, control rods, etc N/A

d. Other (Oil Waste) 1.45E+01

2.

Estimate of major nuclides composition (by waste type)

b.

C.

d.

B.

Mn-54 Fe-55 Co-60 Ni-63 Zn-65 Cs-137 Mn-54 Fe-55 Co-60 Zn-65 Cs-137 NIA Mn-54 Fe-55 Co-60 Zn-65 Aq-110m Cs-137

3.

Major Nuclide Composition Solid Waste Disposition Number of Shipments 14 20 Mode of Transportation Highway Highway Irradiated Fuel Shipments (disposition)

Number of Shipments Mode of Transportation 0

NIA C.

Changes to the Process Control Program None.

D.

Major Changes to Radioactive Waste Treatment Systems Total Activity Period (Ci) 3.58E+02 2023 8.95E-01 2023 N/A NIA 6.31 E-03 2023 1.35%

55.19%

36.32%

1.33%

1.75%

3.81%

7.5%

33.78%

50.69%

3.79%

1.65%

N/A 8.34%

34.75%

48.29%

4.24%

1.1%

1.42%

Destination Processor Disposal Destination N/A Est. Total Error%

25.0 25.0 NIA 25.0 Ci 4.82E+00 1.98E+02 1.30E+02 4.78E+00 6.25E+00 1.36E+01 6.71E-02 3.03%-01 4.54E-01 3.40E-02 1.47E-02 N/A 5.27E-04 2.20E-03 3.05E-03 2.68E-04 6.95E-05 8.95E-05 Assess initiated safety related changes to the radioactive waste system (liquid, gaseous and solid) for the period in which the evaluation was reviewed, as applicable.

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SVP-24-029, Radioactive Effluent Release Report for 2023

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SVP-24-029, Radioactive Effluent Release Report for 2023

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