ML051120333

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2004 Radioactive Effluent Release Report
ML051120333
Person / Time
Site: Zion  File:ZionSolutions icon.png
Issue date: 12/31/2004
From:
Exelon Generation Co, Exelon Nuclear
To:
NRC/FSME
References
+kBR1SISP20051207
Download: ML051120333 (99)
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Text

ZION NUCLEAR POWER STATION 2004 RADIOACTIVE EFFLUENT RELEASE REPORT EXECUTIVE

SUMMARY

Zion Station has not been an operational station for over 6 years. A review of 2004 effluent data indicates that there were 2 occurrences in which stack effluent samples exceeded the Lower Limit of Detection. This activity released is a very small fraction of a percent of the annual limits. The release of noble gas and particulates continued to trend downward. This trend can be attributed to the duration the units have been shutdown.

Airborne Receptor Critical Yearly Dose to  % of Yearly Organ Dose Limit Maximally Limit Exposed Receptor Gamma Air NA NA 10mrad 0 0 Beta Air NA NA 20 mrad 0 0 Total Body Child NA 5 mrem 4.17E-5 8.34E-4 Skin NA NA 15 mrem 0 0 Organ Adult GILLI 15 mrem 4.73E-5 3.15E-4

Aquatic doses continue the downward trend. There were only 6 batch releases for the entire year Aquatic Receptor Critical Yearly Dose Dose to  % of Yearly Organ Limit Maximally Limit Exposed Receptor Total Body Adult NA 3 mrem 1.89E-2 0.631 Critical Teen Liver 10 mrem 3.0e-2 0.3 The doses to the public, from all Zion Station effluent paths during 2004, were extremely low and far below all regulatory limits.

To the Zion Nuclear Power Station, 2004 Radioactive Effluent Release Report.

The following identifies those actions committed to by Exelon Nuclear in this document. Any other actions discussed in this submittal represent intended or planned actions by Exelon Nuclear. They are described to the NRC for the NRC's information, and are not Regulatory Commitments.

Commitment:

g4oned

ZION STATION 10CFR20 Compliance Assessment

1. 10CFR 20.1301 (a) (1) Compliance Total Effective Dose Equivalent, mrem/vear 4.89E-2 10 CFR 20.1301 (a) (1) limit mrem/vr 100

% of the limit 0.0489

2. Compliance Summary 10CFR20 1 5sQtr. 2 nd Qtr. 3rd Qtr. 4 th Qtr  % of Limit TEDE 1.02e-2 8.9E-5 0.0 3.88e-2 0.0489%

In mRem

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT

_____________LIQUID____DOSE___SU__MARY_

LIQUID DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2 Liquid Receptor PERIOD DOSE BY ORGAN AND AGE GROUP (mrem) ============ QUARTER 1 = -

Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB ADULT 4.43E-03 6.02E-03 3.91E-08 2.04E-03 6.79E-04 1.59E-04 0.OOE+00 3.96E-03 TEEN 4.73E-03 6.27E-03 2.87E-08 2.13E-03 8.28E-04 1.19E-04 0.00E+00 2.19E-03 CHILD 5.95E-03 5.68E-03 3.94E-08 1.85E-03 6.65E-04 4.61E-05 0.00E+00 8.47E-04 INFANT 8.32E-06 7.47E-06 2.69E-08 2.00E-06 8.25E-07 2.94E-07 0.00E+00 8.16E-07

=== SITE DOSE LIMIT ANALYSIS == = = = = QUARTER 1 Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 1 - Admin. Any Organ TEEN LIVER 6.27E-03 3.75E+()0 1.67E-01 Qtr 1 - Admin. Total Body ADULT TBODY 3.96E-03 1.13E+C)0 3.52E-01 Qtr 1 - T.Spc. Any Organ TEEN LIVER 6.27E-03 5.OOE+00 1.25E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

I Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 4.59E-04 CO-60 3.52E-02 CS-134 8.84E-01 CS-137 9.91E+01 Qtr 1 - T.Spc. Total Body ADULT TBODY 3.96E-03 1.50E+00 2.64E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 9.88E-04 CO-60 1.23E-01 SR-90 2.28E-02 CS-134 1.13E+00 CS-137 9.87E+01

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT

______________LIQUID___DOSE___

SUMMARY

LIQUID DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2 Liquid Receptor

=== PERIOD DOSE BY ORGAN AND AGE GROUP (mrem) = - QUARTER 2 = -

Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB

=== SITE DOSE LIMIT ANALYSIS ==QUARTER 2 == -

Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 2 - Admin. Any Organ O.ODE+00 5.OOE+00 0.OOE+00 Qtr 2 - Admin. Total Body ADULT TBODY 0.OOE+00 1.13E+00 0.OOE+00 Qtr 2 - T.Spc. Any Organ 0.OOE+00 3.75E+00 O.OOE+00 Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage

_ Qtr 2 - T.Spc. Total Body ADULT TBODY 0.OOE+00 1.50E+00 0.OOE+00 Critical Pathway: Potable Water (PWtr)

Major Contributors ( 0% or greater to total)

Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT

_____________LIQUID____DOSE___

SUMMARY

LIQUID DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2 Liquid Receptor

=== PERIOD DOSE BY ORGAN AND AGE GROUP (mrem)-============ QUARTER 3 = -

Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB

== SITE DOSE LIMIT ANALYSIS --- QUARTER 3

Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 3 - Admin. Any Organ 0.OOE+00 5.OOE+00 0. OOE+00 Qtr 3 - Admin. Total Body ADULT TBODY 0.OOE+00 1.13E+00 0.OOE+00 Qtr 3 - T.Spc. Any Organ 0.OOE+00 3.75E+00 0.00E+00 Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage Qtr 3 - T.Spc. Total Body ADULT TBODY 0.OOE+00 1.50E+00 0.OOE+00

-2 Critical Pathway: Potable Water (PWtr)

Major Contributors ( 0% or greater to total)

Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT

_____________LIQUID____DO__E__

SUMMARY

LIQUID DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2 Liquid Receptor

=== PERIOD DOSE BY ORGAN AND AGE GROUP (mrem)-============ QUARTER 4 == -

Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB ADULT 1.69E-02 2.28E-02 1.79E-07 7.74E-03 2.57E-03 6.10E-04 0.OOE+00 1.50E-02 TEEN 1.80E-02 2.38E-02 1.31E-07 8.08E-03 3.14E-03 4.55E-04 0.OOE+00 8.30E-03 CHILD 2.27E-02 2.15E-02 1.80E-07 7.02E-03 2.52E-03 1.77E-04 0.OOE+00 3.20E-03 INFANT 3.24E-05 2.84E-05 1.23E-07 7.60E-06 3.15E-06 1.18E-06 0.OOE+00 3.16E-06

=== SITE DOSE LIMIT ANALYSIS UARTER 4 Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 4 - Admin. Any Organ TEEN LIVER 2.38E-02 3.75E+C10 6.34E-01 Qtr 4 - Admin. Total Body ADULT TBODY 1.50E-02 1.13E+C'0 1.33E+00 Qtr 4 - T.Spc. Any Organ TEEN LIVER 2.38E-02 5.OOE+00 4.75E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

, Major Contributors ( 0% or greater to total)

<_f Nuclide Percentage H-3 5.53E-04 CO-60 3.67E-02 CS-134 1. 65E-01 CS-137 9.98E+01 Qtr 4 - T.Spc. Total Body ADULT TBODY 1.50E-02 1.50E+00 9.98E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 l.19E-03 CO-60 1.28E-01 SR-90 2.52E-02 CS-134 2.11E-01 CS-137 9.96E+01

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT

______________LIQUID___DOSE___

SUMMARY

LIQUID DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2 Liquid Receptor

PERIOD DOSE BY ORGAN AND AGE GROUP (mrem) = - ANNUAL 2004 ======

Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB ADULT 2.13E-02 2.88E-02 2.18E-07 9.78E-03 3.25E-03 7.69E-04 0.00E+00 1.89E-02 TEEN 2.27E-02 3.OOE-02 1.60E-07 1.02E-02 3.97E-03 5.74E-04 0.OOE+00 1.05E-02 CHILD 2.86E-02 2.72E-02 2.19E-07 8.86E-03 3.19E-03 2.23E-04 0.OOE+00 4.05E-03 INFANT 4.07E-05 3.58E-05 1.50E-07 9.60E-06 3.98E-06 1.47E-06 0.00E+00 3.98E-06

=== SITE DOSE LIMIT ANALYSIS == ANNUAL 2004 Age Dose Limit Max % of Annual - Limit Group Organ (mrem) (mrem) Limit 2004 - Admin. Any Organ TEEN LIVER 3.OOE-02 7.50E+00 4.O0E-01 2004 - Admin. Total Body ADULT TBODY 1.89E-02 2.25E+00 8.41E-01 2004 - T.Spc. Any Organ TEEN LIVER 3.OOE-02 1.OOE+01 3.OOE-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 5.33E-04 CO-60 3.64E-02 CS-134 3.15E-01 CS-137 9.96E+01 2004 - T.Spc. Total Body ADULT TBODY 1.89E-02 3.OOE+00 6.31E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 1.15E-03 CO-60 1.27E-01 SR-90 2.47E-02 CS-134 4.03E-01 CS-137 9.94E+01

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

== I&P DOSE LIMIT ANALYSIS = = = = =QUARTER I

Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 1 - Admin. Any Organ 0.OOE+00 1.OOE+01 0.OOE+00 Qtr 1 - Admin. Total Body 0.OOE+00 1.OOE+01 0.OOE+00 Qtr 1 - T.Spc. Any Organ 0.OOE+00 1.OOE+01 O.OOE+00 Receptor: 0 Distance: (meters) Compas s Point:

Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage Qtr 1 - T.Spc. Total Body 0.OOE+00 1.OOE+01 0.OOE+00 Receptor: 0 Distance: . (meters) Compas s Point:

K) Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== NG DOSE LIMIT ANALYSIS -QUARTER 1 Dose Limit Max % of Quartr - Limit (mrad) (mrad) Limit Qtr 1 - Admin. Gamma 0.00E+00 1.OOE+( 01 0.OOE+00 Qtr 1 - Admin. Beta O.OOE+00 1.00E+(01 0.OOE+00 Qtr 1 - T.Spc. Gamma O.OOE+00 1.OOE+01 0.OOE+00 Receptor: 0 Distance: (meters) Compass Point:

Nuclide Percentage Qtr 1 - T.Spc. Beta 0.OOE+00 1.00E+01 0.OOE+00 Receptor: 0 Distance: (meters) Compass Point:

Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== I&P DOSE LIMIT ANALYSIS QUARTER 2 = -

Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 2 - Admin. Any Organ ADULT GILLI 4.73E-05 5.63E+00 8.41E-04 Qtr 2 - Admin. Total Body CHILD TBODY 4.17E-05 5.25E+00 7.95E-04 Qtr 2 - T.Spc. Any Organ ADULT GILLI 4.73E-05 7.50E+00 6.31E-04 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway: Ground Plane Deposition (GPD)

Major Contributors ( 0% or greater to total)

Nuclide Percentage CO-60 1.OOE+02 Qtr 2 - T.Spc. Total Body CHILD TBODY 4.17E-05 7.50E+00 5.56E-04 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway: Ground Plane Deposition (GPD)

Major Contributors ( 0% or greater to total)

Nuclide Percentage CO-60 1.OOE+02

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== NG DOSE LIMIT ANALYSIS QUARTER 2 Dose Limit Max % of Quartr - Limit (mrad) (mrad) Limit

_tr _2 - A_____

in.______Gamm _________________E______ ---- E --

Qtr 2 - Admin. Gamma 0.OOE+00 7.50E+C)O 0.00E+00 Qtr 2 - Admin. Beta 0.00E+00 7.50E+(DO 0.OOE+00 Qtr 2 - T.Spc. Gamma 0.OOE+00 7.50E+00 0.OOE+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage Qtr 2 - T.Spc. Beta 0.OOE+00 7.50E+00 O.OOE+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== I&P DOSE LIMIT ANALYSIS = = = = =QUARTER 3 Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 3 - Admin. Any Organ 0.OOE+00 7.50E+()0 0.OOE+00 Qtr 3 - Admin. Total Body 0.OOE+00 7.50E+()0 0.00E+00 Qtr 3 - T.Spc. Any Organ 0.OOE+00 7.50E+00 0.00E+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage Qtr 3 - T.Spc. Total Body 0.OOE+00 7.50E+00 0.OOE+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage T

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== NG DOSE LIMIT ANALYSIS -QUARTER 3 Dose Limit Max % of Quartr - Limit (mrad) (mrad) Limit Qtr 3 - Admin. Gamma 0.OOE+00 7.50E+C10 O.00E+00 Qtr 3 - Admin. Beta 0.OOE+00 7.50E+CP0 0.OOE+00 Qtr 3 - T.Spc. Gamma 0.00E+00 7.50E+00 O.00E+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage Qtr 3 - T.Spc. Beta 0.OOE+00 7.50E+00 O.OOE+00 Receptor: 5 Composite Crit. Receptor - IP Distance: ' 0.00 (meters) Compass Point: NA Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== I&P DOSE LIMIT ANALYSIS QUARTER 4 =-

Age Dose Limit Max % of Quartr - Limit Group Organ (mrem) (mrem) Limit Qtr 4 - Admin. Any Organ 0.00E+00 7.50E+00 0.OOE+00 Qtr 4 - Admin. Total Body 0.OOE+00 7.50E+00 0.OOE+00 Qtr 4 - T.Spc. Any Organ 0.OOE+00 7.50E+00 0.OOE+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage Qtr 4 - T.Spc. Total Body 0.OOE+00 7.50E+00 O.OOE+00 Receptor: 5 Composite Crit. Receptor - IP I Distance: 0.00 (meters) Compass Point: NA

< Critical Pathway:

Major Contributors ( 0% or greater to total)

Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== NG DOSE LIMIT ANALYSIS -QUARTER 4 Dose Limit Max % of Quartr - Limit (mrad) (mrad) Limit Qtr 4 - Admin. Gamma 0.OOE+00 7.50E+CDO 0.OOE+00 Qtr 4 - Admin. Beta 0.00E+00 7.50E+(D0 0.00E+00 Qtr 4 - T.Spc. Gamma 0.OOE+00 7.50E+00 0.OOE+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage Qtr 4 - T.Spc. Beta 0.OOE+00 7.50E+00 0.OOE+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== I&P DOSE LIMIT ANALYSIS ANNUAL 2004 Age Dose Limit Max % of Annual - Limit Group Organ (mrem) (mrem) Limit 2004 - Admin. Any Organ ADULT GILLI 4.73E-C15 1.13E+01 4.21E-04 2004 - Admin. Total Body CHILD TBODY 4.17E-C15 1.05E+01 3.97E-04 2004 - T.Spc. Any Organ ADULT GILLI 4.73E-05 1.50E+01 3.16E-04 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway: Ground Plane Deposition (GPD)

Major Contributors ( 0% or greater to total)

Nuclide Percentage CO-60 1. OOE+02 2004 - T.Spc. Total Body CHILD TBODY 4.17E-05 1.50E+01 2.78E-04 Receptor: 5 Composite Crit. Receptor - IP K Distance: 0.00 (meters) Compass Point: NA Critical Pathway: Ground Plane Deposition (GPD)

Major Contributors ( 0% or greater to total)

Nuclide Percentage CO-60 1.OOE+02

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Report for: 2004 Unit Range - From: 1 To: 2

=== NG DOSE LIMIT ANALYSIS -ANNUAL 2004 Dose Limit Max % of Annual - Limit (mrad) Cmrad) Limit 2004 - Admin. Gamma 0.OOE+00 1.50E+01 0.00E+00 2004 - Admin. Beta O.OOE+00 1.50E+01 0.OOE+00 2004 - T.Spc. Gamma 0.OOE+00 1.50E+01 O.00E+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage 2004 - T.Spc. Beta 0.00E+00 1.50E+01 0.00E+00 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT Report for: 2004 Unit Range - From: 1 To: 2

MAXIMUM DOSE ANALYSIS ANNUAL 2004 ======

Age Dose Dose Type Group -Organ (mrem)

Any Organ TEEN LIVER 3.01E-02 Liquid Receptor: 0 Liquid Receptor Gaseous Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Liquid Dose: 3.OOE-02  % of Total: 9.98E+01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors 0% or greater to total)

Nuclide Percentage H-3 5.33E-04 CO-60 3.64E-02 SR-90 0.OOE+00 CS-134 3.15E-01 CS-137 9.96E+01 Gaseous Dose: 3.99E-05  % of Total: 1.33E-01 Critical Pathway: Ground Plane Deposition (GPD)

Major Contributors 0% or greater to total)

Nuclide Percentage CO-60 1.00E+02

MAXIMUM DOSE ANALYSIS ANNUAL 2004 ======

Age Dose Dose Type Group Organ (mrem)

Total Body ADULT TBODY 1.90E-02 Liquid Receptor: 0 Liquid Receptor Gaseous Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Liquid Dose: 1.89E-02  % of Total: 9.96E+01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 1.15E-03 CO-60 1.27E-01 SR-90 2.47E-02 CS-134 4.03E-01 CS-137 9.94E+01

RETDAS v3.6.3 <ZIO> VSSI 40CFR190 URANIUM FUEL CYCLE DOSE REPORT Gaseous Dose: 4.03E-05  % of Total: 2.12E-01 Critical Pathway: Ground Plane Deposition (GPD)

Major Contributors ( 0% or greater to total)

Nuclide Percentage CO-60 1.OOE+02

Zion Nuclear Power Station Annual Radioactive Release Report for 2004 Infant Receptor Yearly Umit Maximum % of 10CFR 50 dose (mrad, Yearly Appendix I mrem) ULmit Maximum Qtr. Dose (mrad, mrem)

A. Airborne QTR Obi. 1st Qtr. 2nd Qtr. 3 Qtr. 4 Qtr.

Gamma Air 5.0 mrad 0 0 0 0 10.0 mrad 0 0 Beta Air 10.0 mrad 0 0 0 0 20.0 mrad 0 0 Total Body 2.5mrem 0 3.97E-05 0 0 5.Omrem 3.97E-05 7.94E-04 Skin 7.5 mrem 0 0 0 0 15.0 mrem 0 0 Organ 7.5mrem 0 3.97E.05 0 0 15.0 mrem 3.97E-05, 2,64E-04 Cntical Organ I I NA l GILLI I NA I NA l GILLI I B. Aquatic ITotal Body 11.5 mrem 8.16E-07 O.OOE+00 I 0 3.16E-06 13.Omrem I 3.98E-061 1.33E-04 Internal Organ l5.0 rem I 8.32E-06 1 0.OOE+00 I 0 l 3.24E.05l 110.o0mrem I 4.07E-05l 4.07E 041

~~~ - _ - _ - . .

Bone Critical Organ L Bone I NA urn.

NA I Bone mu -

Dy ,)

4.

Zion Nuclear Power Station Annual Radioactive Release Report for 2004 Child Receptor Maximum Yearly Limit dose %of '

10CFR 50 (mrad, Yearly Appendix I mrem) Limit Maximum Qtr. Dose (mrad, mrem)

A. Airborne OTR Ohi. 1st Otr. 2nd tr. 3 Qtr. 4 Otr.

Gamma Air 5.0 mrad l 0 0 0 10.0 mrad 0 0° Beta Air l10.0 mrad 0 0 0 0 20.0 mrad l 0 0 Total Body 2.5mrem 0 4.17E-05 0 0 5.Omrem 4.17E-05 834E-04 Skin 17.5 mrem l 0 l 01 0 l 0 l 15.0 mrem °0 0 Organ 75mrem 0 438E05 0 0 15.0 mrem l 4.38E-05, 2.92E-04 Critical Organ I NA GILLI NA NA IGILLI l B. Aquatic ITotal Body 11.5 mrem I 8.47E-04 I 0 0 l 3.20E-03 l 13.0 mrem 4.05E-031 0.13 InternalOrgan l5.0rem l5.95E-03l 0 l 0 l 2.27E.02 l .. 0.0 mrem I 2.86E-021 0.28

.~~~Bn NA NA. Bone._..

Critical Organ Bone NA NA Bone Bone m m ii .

) U

Zion Nuclear Power Station Annual Radioactive Release Report for 2004 Teen Receptor Maximum Yearly Limit dose  % of 10CFR 50 (mrad, Yearly Appendix I mrem) Limit Maximum Qtr. Dose (mrad, mrem)

A. Airborne OTR OWi. 1st Otr. 2nd Otr. 3 Otr. 4 Qtr.

Gamma Air l5.0mrad r 0 0 0 10.0 mrad 0 0 Beta Air 10.0 mrad 0 0 0 l 0 20.0 mrad 0 Total Body l2.5mrem l 0 4.06E-051 0 0 5.0mrem 4.06E-05 8.12E.04 Skin 7.5 mremr 0 0 0 0 15.0 mrem 0 0 Organ 17.5mrem I 0 1 4.65E-05, 0 0 15.0 mrem I 4.65E-05, 3.1OE-04 I NA I GILLI I NA I NA IGILLII Critical Organ I B. Aquatic ITotal Body 11.5 mrem I 2.19E-03 I 0 1 0 I 8.30E-03 3.0rmrem l 1.05E-021 0.35 Internal Organ l5.0 rem I. 6.27E-03I 0 1 0 12.38E-02l 110.0mrem I 3.00E-02l 0.3 Critical Organ Uiver I NA _NA I Liver Uver S e -

)

Zion Nuclear Power Station Annual Radioactive Release Report for 2004 Adult Receptor Maximum Yearly Limit dose  % of 10CFR 50 (mrad, Yearly Appendix I mrem) Limit Maximum Qtr. Dose (mrad, mrem)

A. Airborne QTR Obj. 1st Otr. 2nd Qtr. 3 Qtr. 4 Qtr.

5.0 mrad 0 0 0 10.0 mrad 0 0 Gamma Air 10.0 mrad 0 0 0 20.0 mrad 0 0 Beta Air Total Body 2.5mrem 0 4.03E-05 0 0 5.Omrem 4.03E-05 8.06E.04 7.5 mrem 0 0 0 0 15.0 mrem 0 0 Skin Organ 7.5mrem 0 4.73E-0' 0 0 15.0 mrem 4.73E-051 3.16E-04 Critical Organ NA GILLI NA NA GILLI B. Aquatic 11.5 mrem I 3.96E-031 0 l 0 I 1.50E-02 13.0mrnr 1.89E-02 1 0.631 ITotal Body Internal Organ 5.0 rem 6.02E 03 0 0 2.28E-02 10.0 mrem 2.88E-021 2.88E-01l Liver NA ISm NA Liver Liver Liver Critical Organ mE m Em D

Zion Station 2004 Stack Effluent Totals Total Micro Curies Jan Feb Mar 1Ist Otr Apr May Jun 2nd Jul AUg Sep 3rd Oct Nov IDec 4th Total Alpha < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD <ILLD < LLD < LLD < LLD Beta < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD c LLD < LLD < LLD < LLD < LLD < LLD H-3 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD <ILLD < LLD < LLD < LLD Partic - - I - - I - - - - -

Mn-54 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Co-58 <LLD <LLD <LLD <LLD <LLD <LLD <LD <LLLD <LLD <LID < ID <LLD <LLD <LLD <LD <LLD <ILLD Co-60 <LLD <LLD <lLLD <LLD 8.21 E-01 6.64E-02 <LLD 8.87E-1 <LLD <lLLD <LLD <lLLD l<LLD <LLD < < LLD 8.87E-01 Zn-65 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD <LD < LLD < LLD Sr-89 < LLD LLD <LLLD .< LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD <LLD < LLD <LLD LD < LLD < LLD Sr-90 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Mo-99 < LLD < LLD < LLD < LLD <L LLD LLLD LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Cs-134 < LLD < LLD c LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Cs-137 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Ce-141 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD j< LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Ce-144 < LLD < LLD < LLD <LLD < LLD I< LLD I< LLD I LLD <LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Noble Ga s=_I Kr-85 < LLD <LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Kr-85m c LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD j< LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Kr-87 < LLD < LLD < LLD j< LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD j< LLD < LLD < LLD < LLD < LLD Kr-88 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Xe-133 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD <cLID < LLD < LLD < LLD < LLD < LLD < LLD Xe-133m < LLD < LLD < LLD < LLD < LLD LLD _ < LLD < LLD < LLD < LLD < LLD LLD < LLD < LLD < LLD < LLD < LLD Xe-135 < LLD D < LLD < LLD < LLD < LLD j< LLD < LLD < LLD j< LLD < LLD < LLD j< LLD j< LLD < LLD < LLD Xe-138 < LLD < LLD < LLD <LD LD < LLD < LLD j< LLD < LLD < LLD jLD LD < LLD j< LLD j< LLD j< LLD j< LLD D

Zion Station Annual Effluent Gaseous release at Ground Level UNit 1 (Docket 50-295)

Total Micro Curies Jan Feb Mar 1st Otr Apr May Jun 2nd Jul Aug Sep 3rd Oct Nov Dec 4th Total Alpha < LLD c LLD <LLD < LLD <LLD <LLD DLLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Beta <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD LLD <LLD <LLD cLLD <LLD < LLD H-3 < LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD Partic Mn-54 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Co-58 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD cLLD <LLD <LLD <LLD <LLD Co-60 <LLD < LLD <LLD <LLD 4.11E-01 3.30E-02 <LLD 4.43E-01 < LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD 4.43E-01 Zn-65 < LLD LL <LD <LLLD <LLD <LLD <LD <LD <LD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-89 cLLD < LLD cLLD <LLD LLD < LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-90 < LLD <LLD <LLD <ILD < <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Mo-99 <LLD <LLD <LLD <LLD <LLD <LLD cLLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD Cs-134 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD < LLD Ce-141 LLD LLLD <LID LD cLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-144 < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Noble Gas Kr-85 <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD < LLD Kr-85m <LLD <LD LLID <LD <LLD <LLD <LLD <LLD <LD LLLD LD LD LD < LLD Kr-87 <LLD <LLD <LLD < LLD DLLD < LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-88 <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Xe-133 < LLD <LLD <LLD < LiD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Xe-133m <LLD <LLD <LLD < LLD LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD Xe-135 < LLD < LID < LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-138 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD

) 7)

Zion Station Annual Effluent Report for 2004 Gaseous at Ground Level Unit 2 (Docket Number 50-304)

Total Micro Curies Jan Feb Mar 1Ist Otr Apr May Jun 2nd Jul Aug Sep 3rd Oct Nov IDec 4th Total AJpha <LLD <7LLD <7LLD <<LLD <<LLD <LLD <LLD <LLD <<LLD <<LLD <<LLD <<LLD <<LLD 7<LLD <<LLD <<LLD < LLD Beta < LLD <7LLD <7LLD < LLD I

<LLD LLD <LLD <LLD <7LLD < LLD < LLD <<LLD <<LLD <7LLD <<LLD < LLD < LLD H-3 < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD c LLD <LLD <LLD < LLD <LLD < LLD < LLD < LLD Partic Mn-54 cLLD <cLLD <LLD <lLLD cLLD <LLD <LLD <LLD <LLLD <LLD <LLD <LLD <LLD <LLD <LLD LLD <LLD Co-58 <LLD < LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD LLD <LLD Co-60 <LLD <<LLD <LLD <<LLD 4.10E-01 3.30E-02 <LLD 4.40E-01 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 4.40E-01 Zn-65= <LLD <LLD < LLD <LLD < LLD < LLD <LLD <<LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-89 cLLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Sr-90 <LLD <LLD <LLD cLLD <LID cLLD cLILLLD <LLD < LLD < LLD <LLD <LLD < LLD <LLD <LLD Mo-99 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Cs-134 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD < LLD <LLD <LLD <LLD Cs-137 <LLD <LLD <LLD <LLD <LLD < LLD < LLD <LLD <LLD <LLD < LLD < LLD <LLD <LLD <LLD <LLD < LLD Co-141 < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD < LLD Ce-144 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LID <LLD <LLD <LLD cLLD <LLD <LLD <LLD Noble Gas Kr-85 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LID L LD <LLD <LLD < LLD Kr-85m < LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD < LLD <LLD <LLD <LLD <LLD <LD <LLD <LLD < LLD Kr-87 < LLD <LLD <LLD cLLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LD <LLD <LLD < LLD Kr-88 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD cLLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xeo133 < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-133m <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-135 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD Xe-138 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD

Zion Station 2004 Stack Effluents Conc. uCi/c Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Alpha <<LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Beta < LLD <lLLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD <1LLD < LLD H-3 < LLD < LLD <lLLD < LLD < LLD < LLD <<LLD l<LLD <lLLD <lLLD <LLD <LLD Partic Mn-54 <LLD <LLD <LLD <LLD <lLLD <LLD <lLLD < LLD <LLD <LLD <LLD <LLD Co-58 < LLD <LLD <LLD <LLD <lLLD <LLD < LLD < LLD <LLD < LLD <LLD <LLD Co-60 < LLD <LLD <LLD 6.17E-15 4.88E.16 <LLD <lLLD < LLD <LLD <LLD <LLD <LLD Zn-65 < LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-89 < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-90 <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Mo-99 <LLD <LLD <LLD <LLD <LLD <LLD cLLD <LLD <LLD <LLD <LLD <LLD Cs 134 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce 141 < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce 144 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Noble Gas Kr-85 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD Kr-85m <LLD <LLD <LLD cLLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr 87 <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD Kr-88 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD Xe-133 < LLD <LLD <LLD <LLD <LLD cLLD cLLD <LLD <LLD <LID <LLD <LLD Xe-133m < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LD <LLD <LLD <LLD Xe-135 <LLD <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-138 <LLD <LLD < LLD <LID cLD <LLD <LLD <LLD <LLD <LLD <LID L LLD

)

Zion Nuclear Power Station Annual Radioactive Effluent Release Report for 2004 GASEOUS EFFLUENTS SUPPLEMENTAL RELEASE INFORMATION

1. Regulatory Limits The calculated annual quantity of all radioactive material above the Lower Limit of Detection (LLD) released to unrestricted areas is limited by off-site dose restrictions stated in the station technical specifications, Off-site Dose Calculation Manual (ODCM) and 10 CFR50 Appendix I.

Quarterly Yearly (mRem) (mRem)

Gamma Air 5.0 10.0 Beta Air 10.0 20.0 Total Body 2.5 5.0 Skin 7.5 15.0 Organ 7.5 15.0

2. Maximum Permissible Concentrations Zion Station gaseous effluent release-rate limits were not calculated using maximum permissible concentrations of activity. Gaseous effluent activity release rates are limited by offiste dose-rate restrictions stated in the station technical specifications and the ODCM. The release-rate limits were determined by using the ODCM computer code to calculate a release rate which would produce a specific instantaneous dose rate at the site boundary. The off-site dose-rates limits are:

Noble Gases 500 mRem/year Total Body Noble Gases 3000 mRem/year Skin H3 and particulates 1500 mRem/year Organ

>8 days /21ife

3. Measurements of Total Radioactivity
a. Fission & Activation Products Gamma Spectroscopy
b. Tritium Liquid Scintillation
c. Noble Gases Gamma Spectroscopy
d. Gross Alpha Gas Flow Proportional Counter Composite samples analysis for Fe-55, Sr-89, and Sr-90 performed by offsite vendor.
4. Average Energy There was no gas release above the Lower Limit Detection during 2004. Due to the permanent cessation of operations and radioactive decay, the only gas available for release is Kr-85 present in the fuel rods.

Isotope Percent of Effluent Kr-85 100%

Average Beta Energy per Decay of the mixture 251 keV

Zion Nuclear Power Station Annual Effluent Release Report Gaseous Effluent Lower Limit of Detection IkotonA tuCricc Alpha l 1.OOE-1 1 H-3 1.OOE-06 Kr-85 1.OOE-06 Mn-54 1.OOE-1 1 Co-58 1.OOE-11 Co-60 1.OOE-i 1 ZN-65 1.OOE-i 1 Sr-89 1.OOE-11 Sr-90 1.OOE-11i Mo-99 1.ODE-1 1 Cs-134 1 .OE-1 1 Cs-137 1.OOE-11 Ce-1 41 1.OOE-1 1 Ce-1 44 1.OOE-1 1 Liquid Effluents Lower Limit of Detection Entrained Gases PrinciDle C imma Emmiters LLD LLD Isotope uCVml Isotope uCimI Kr-85m 1.DDE-05 Alpha 1.OOE-07 Kr-85m 1.OOE-O5 H-3 1.ODE-05 Kr-87 1.ODE-05 Sr-89 5.OOE-08 Kr-88 1.00E-5 Sr-9o 5.OOE-08 Ar-41 1.DDE-05 Fe-55 1.OOE-06 Xe-1 31 m 1.ODE-D Mn-54 5.OOE-07 Xe-1 33m 1.ODE-D5 Co-58 5.OE-07 Xe-133 1.ODE-05 Co-60 5.OOE-07 Xe-1 35m 1.OOE-05 Zn-65 5.OOE-07 Xe-1 35m 1.OOE-05 Mo-99 5.DOE-07 Cs-1 34 5.OE-07 Cs-137 5.00E-O7 Ce-141 5.O0E-07 Ce-144 5.00E-O7

ZION NUCLEAR POWER STATION ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT FOR 2004 ADDENDUM

1. Offsite Dose Calculation Manual (ODCM)

Changes to the ODCM are required by Zion Station Permanently Defueled Technical Specification 5.6.1. and ODCM Section 12.6.3 to be submitted as part of, or concurrent with, the Annual Radioactive Effluent Release Report.

There were no changes made to the ODCM during 2004.

2. Gaseous and Liquid Waste Treatment Systems and Process Control Program Zion Station ODCM Section 12.6.4 requires major changes to the Gaseous and Liquid Waste Treatment Systems to be reported in the Annual Radioactive Effluent Release Report.

The Waste Gas Hold-up System was permanently vented. In Zion's defueled configuration this system is no longer applicable.

In Zion's defueled configuration, the charcoal iodine removal system is no longer applicable.

Due to radioactive decay and no means of production, radioactive iodine is not a concern at Zion.

3. Limiting Conditions of Operation (LCOs)

Zion Station ODCM Section 12.7.2 requires explanation as to why the inoperability of liquid or gaseous monitoring instrumentation was not corrected within the time specified in the ODCM to be submitted with the Annual Radioactive Effluent Release Report.

None

4. Liquid Holdup Tanks and Gas Storage Tanks Zion Station ODCM Section 12.7.2 requires a description of events leading to liquid holdup tanks or gas storage tanks exceeding technical specification limits to be included in the Annual Radioactive Effluent Release Report.

There was no activity present in any gas decay tanks during 2004.

No liquid holdup tanks exceeded the limits of Permanently Defueled Technical Specifications 5.6.3 during 2004.

ZION NUCLEAR POWER STATION ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT FOR 2004 ADDENDUM

5. Estimates of Total Error The following is an estimate of the total error associated with certain total values in the Annual Radioactive Effluent Release Report. The Total error is determined by calculating the square root of the sum of the squares of the individual errors.
a. Gaseous Effluents Sampling Error 5%

Calibration Error 10%

Counting Statistics Error 17%

Sample Volume Error 10%

Total Error 23%

b. Liquid Effluents Sampling Error 5%

Calibration Error 10%

Counting Statistics Error 16%

Sample Volume Error 2%

.J Total Error 20%

2004 AER Water Worksheet uCVmL Jan Feb Mar jApr May Jun Jul Au Oct Nov Dec Alpha < LLD < LLD < LLI <LLD <LLD <LLD <LLD <LLD <LLD < LLD 2.60E-08 2.60E-08 Beta < LLD < LLD < LLj <LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD H-3 <LLD 1.1 8E-04 < LL <LLD <LLD <LLD < LLD <LLD <LLD < LLD 1.45E-04 1.44E-04 Parnic.

Mn-54 <LLD < LLD < LLj <LLD <LLD <LLD < LLD < LLD < LLD < LLD < LLD <110D Fe-55 j<LLD < LLD <1LD< LLD <LLD <LLD < LLD < LLD < LLD < LLD < LLD < LLD Co-58 < LLD < LLD < LLI <LID < LLD<<LLD < LLD < LLD < LLD < LLD < LLD < LLD Co.60 < LLD 6.83E-06 <LLDI <LLD <LLD <LLD < LLD < LLD < LLD < LLD 1.46E-05 7.03E-06 Zn-65 < LLD < LLD <ULD< LLD <LLD <LID < LLD < LL) < LLD < LLD < LLD < LLD Mo-99 < LLD < LLD <LLDI <LLD <LLD <LLD < LLD < LLD < LLD < LLD <LLD < LLD Sb-125 < LID 3.32E-07 <LLDI <LLD <LLD <LLD < LLD < LLD < LLD < LLD 3.80E-07 4.45E-07 Cs-134 < LLD 6.22E-08 < LLI <LID < LLD I<LLD <LDID <LLD <LLDID LLD <LLD 1.20E-08 Cs 137 < LID 9.22 E-06 < LLI <LLD <LID <LLD <LLD <LLD <LLD < LLDI 1.0 1E.05 9.38 E-06 Ce1141 < LLD < LLD < LLI <LID <LID <LID _

<LLD <LLD <LLD <LLD <LLD l<LLD Ce-i144 j<LLD < LLD <LLDI <LID <LLD <LID < LID <'LLD < LID <LED < LID j<LLD Sr-90 < LLD 5.62E-08 <LLI <LLD <LLD <LLD < LLD < LLD < LLD < LLD 6.28E.08 6.28E-08 Ar-41 j<LLD < LLD < L < LID <LLD <LID < LID < LID < LLD < LID < LLD <LLID Kr-85 j<LLD <LLD < LI < LID <LLD <LID <LLD < LID <LLD <LU) < LID <LLID Kr-85 < LLD < LLD < LI~ <LLD <LD< LLD < LL) < LID < LLD<<LLD < LID < LLD Kr*87 < LID < LLD <LDI<<LU) <LLD < LLD <LLD < LU) <LU) <LLD < LLD < LID Kr-88 < LLD < LID <LLDI. LLD <LLD <LLD < LU) < LU) <LLD<<LLD < LLD <LLID Xe-131m < LID < LID <LLDI <LLD <LLD <LLD <LU) < LLD <LDID <LU) < LID j<LU)

Xe-133 < LLD < LID <LLDI <LLD <LLD <LLD < LLD < LID <LLD <LU) < LLD < LLD Xe-1 33m < LID < LLD < LI <LID j<LLDI LLD <LU) < LLD <LLD <LU) < LID < LLD Xe-i 35 < LLD <LLD <LI < LLD <LLD<<LLD<<LWD <LU) <LU) <LU) <LID <LLID Xe-135m <LU)I LLD <L <LDID <LU)I <LWD jLI LLD < LLD < LLD I<LU)L LU

)

4.

2004 AER Water Worksheet Total microCuries Jan Feb Mar 1st Qtr Apr May Jun Jul Aug Sep andOtrd Ot Oct Nov Dec 4th Qtr Total l Alpha l<LL <LLD IUD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 1.36E-01 5.89E+00 6.03E+00 6.03 Beta LL <D <LLD <LLD < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLDW <LLD <LW <LLD <LLD <LLD H-3 < LL 7.31 E+03 < LDl 7.31 E+03 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLDW 7.60E+02 3.26E+04 3.34E+04 4.07E+04 Partic. - - - - - - - -

Mn-54 LLi < LLD .<LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD LLD < LLD < LLD < LLD Fe-55 <LLi <LW LLD < <LLD <<LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD < LLD <L < ID <LLD <LLD Co-58 <LLI < LLD <

<LLD <LLD<

L < <LLD <TLL <LD <LW <<LLDD <LW<LW <LLD

<<LLD <<LLD <<LLD Co-60 <LU 4.23E+02 <um 4.23E+02 < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 7.65E+01 1.59E+03 1.67E+03 2.09E+03 Zn-65 <L < LLD <LLD <LWD <LID <LLD <LLC <LLD <LLD <LLD < LLD <L <LW <LLD <LID <LLD l Mo.99 <LU LLD wuD <LLD <LLD <LLW <LLD <LLW <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sb-125 I<L 2.06E+01 ut 2.06E+01 < LLD <LLW <LLD LLD < LLD <LLD <LLD <LLD <LLD 1.99E+00 1.01E+02 1.03E+02 1.23E+02 Cs-134 <LU 3.85E+00 _ _4 3.85E+O0 <LLD <LW <LLD <LLW <LLD <LLD <LLW <LLD <LLD <LLD 2.73E+00 2.73 6.58 Cs-137 <LU 5.71 E+02 u 5.71E+02 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 5.30E+01 2.13E+03 2.18E+03 2.75E+03 Ce-141 <L < LLD +/-uD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-144 <LU < LLD ut. <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-90 j< L 3.48E+00 cuD 3.48E+00 < LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 3.29E-01 1.42E+01 1.45E+01 18

= =- -I I = = U I I I Ar-41 <L 7 < LLD <LLD <LLD <LLW <LLD < LLD <LW <LLD < LLD <LLD <LLD <LLD <LLD <LLD Kr-85 <L < LLD <LLD <LLD <LLD < LLD <LW < <LLD <L LID LLD

<LLD <LD <LLD <LLD < LLD < LLD Kr-85 c<iL < LLD uD <LLD <LLD <LLD <LLD <LLD <LLD <LD <LLD < LLD <LLD <LLD <LLD <LLD <LLD Kr-87 <Li < LLD < <LL < LLDLLD

< <LLD <LLL <LLD < LLD <LLD <LLD <<LL <LLD < LLD <LLD Kr-88 <L < LLD uID <LLD <LLD < LLD < LLD <LLD < LW <<LLD <LLD

<LW <LD lLLD <LLD <LLD <LLD Xe-131m <LI < LLD <L < LLD <LLD <LLD < LLD <LLD <LW LLD <LLD <

<LL LLL <<LID <LLD <LLDl <LLDl Xe-133 < Lc < LLD < <LLD <LID <LLD < LLD < LLD <LLD < LLD < LLD <LLD <LW <LLD <LLD < LLD < lLD Xe-133m < Li < LLD <L

<u L <LD <cLD <LID LID <LLD <LLL <<LD <LLD <LLD <LLD <L WL <<LID < LLD Xe-135 <LI < LLD i <LLLD<LW <LLC <LLD <LL <LLD <LLD <LLD <LLD LL <LLD <LLD <LLD <LLD Xe-135m c<iL <LW 41 <LLD <LLD <LLD <LLD <LW <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD

)

Zion Nuclear Power Station Annual Radioactive Effluent Release Report for 2004 LIQUID EFFLUENTS SUPPLEMENTAL RELEASE INFORMATION

1. Regulatory Limits The calculated annual quantity of all radioactive material above the Lower Limit of Detection (LLD) released to unrestricted areas is limited by off-site dose restrictions'stated in the station technical specifications , Off-site Dose Calculation Manual (ODCM) and 10 CFR50 Appendix I.

Quarterly Yearly (mRem) (mRem)

Total Body 1.5 3.0 Organ 5.0 10.0

2. Maximum Permissible Concentrations Zion Station Technical Specifications limit concentrations of radioactive material released in liquid effluents to unrestricted areas to 10 times the concentration values listed in Appendix B. Table 2, Column 2 of 10CFR20.
3. Measurements of Total Radioactivity
a. Fission & Activation Products Gamma Spectroscopy
b. Tritium Liquid Scintillation
c. Noble Gases Gamma Spectroscopy
d. Gross Alpha Gas Flow Proportional Countcr Composite samples analysis for Fe-55, Sr-89, and Sr-90 performed by offiste vendor.
4. Batch Release: lstQtr 2nd QTR 3 rd Qtr 4 th QTR 2004 1 0 056 5 6

ZION NUCLEAR POWER STATION ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT FOR 2004 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS Radioactive Waste Shipments for 2004 Shipment Shipment Waste Container Solidification Activity Volume Date Number Media Receiver Class Type Agent (Ci) (m)

(ft3) 1st Quarter:

Sub totals: 0 0.0000000 0.000 0.00 2nd Quarter:

Sub totals: 0 0.0000000 0.000 0.00 3rd Quarter:

Sub totals: 0 0.0000000 0.000 0.00 4th Quarter:

Sub totals: 0 0.0000000 0.000 0.00 Totals: 0 0.0000000 0.000 0.00 Class A Class B Class C Number of Shipments 0 I 0 0

° I Activity (Ci) 0.OOE+00 I 0.OOE+00 I 0.OOE+00 l Volume (mi3 ) 0.OOE+00 I 0.OOE+00 I 0.OOE+00l

) A) )

ZION NUCLEAR POWER STATION ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT FOR 2004 SOUD WASTE AND IRRADIATED FUEL SHIPMENTS A SOUD WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not irradiated fuel)

1. Type of waste and 2. Estimate d major nuclide composition
a. Spent resins, filter sludges, evaporator bottoms, etc.

Waste Volume Activity Estim. Error Waste Volume Activity Estim. Error Waste Volume Activity Estim Error Waste Volume Activity Estim. Error (m3) 3 Class (Ci) inActivity -

Class (m3) (Ci) in Activity - Class (m3) ('C) in Activity Class (m ) (CQ) in Activity A 0.OOE+00 0.00E+00 2.50E+01% B 0.00E+00 0.00E+00 2.50E+01% C 0.00E+00 002E+00 2 50E+01% All 0.00E+00 0.00E200 2.50E+01%

Nuclide Percent Activity Nuciide Percent Activity Nuclide Percent Activity Nuclide Percent Activity Name Abundance (Ci) Name Abundance (Ci) Name Abundance (Ci) Name Abundance (Ci)

H-3 0.00E+00-% 0.OOE+00 H-3 0.00E+00% 0.00E+00 H-3 0.00E+00% 0.00E+00 H-3 0.00E+00% 0.00E+00 C-14 0.00E+00h 0.00E+00 C-14 0.00E+00% 0.00E+00 C-14 0.00E+00% 0.00E+00 C-14 0.00E+00% 0.00E+00 Cr-51 0.00E+00% O.O0E+00 Cr-51 0.00E+00% 0.00E+00 Cr-51 0.00E+00% 0.00E+00 Cr-51 0.00E+00% 0.002+00 Mn-54 0.00E+00% 0.OOE+00 Mn-54 0.00E+00% 0.00E+00 Mn-54 0.00E+00% 0.00E+00 Mn-54 0.00E+00% 0.00E+00 Fe-55 0.00E+00-h 0.OOE+00 Fe-55 0.00E+00% O.00E+00 Fe-55 0.00E+00% 0.00E+00 Fe-55 0.00E+00% 0.00E+00 Fe-59 0.00E+00% 0.00E+00 Fe-59 0.00E+00% 0.00E+00 Fe-59 0.00E+00% 0.00E+00 Fe-59 0.002+00% 0.00E+00 Co-57 0.00E+00% 0.00E+00 Co-57 0.00E+00% 0.00E+00 Co-57 0.002+00% O.OOE+00 Co-57 0.00E+00% 0Q00E+00 Co-58 0.00E+00% 0.002E00 Co-58 0.00E+00% 0.00E+00 Co-58 0.00E+00% O.OOE+00 Co-58 0.00E+00% 0.002+00 Co-6O 0.OOE+00% 0.00E+00 Co-60 0.00E+00% 0.00E+00 Co-60 0.00E+00% O.OOE+00 Co-60 0.00E+00% 0.002+00 Ni-59 0.00E+00% 0.00E+00 Ni-59 0.00E+00% 0.00E+00 Ni-59 0.00E+00% O.OOE+00 Ni-59 0.00E+00% 0.002+00 Ni-63 0.00E+00% 0.00E+00 Ni*63 0.002+00% 0.00E+00 Ni-63 0.00E+00% 0.00O+00 Ni-63 0.002+00% 0.00E+00 Sr-89 0.00E+00% O.00E+00 Sr-89 0.00E+00% 0.00E+00 Sr-89 0.00E+00% 0.00E+00 Sr-89 0.00E+00% 0.00E+00 Sr-9O 0.00E+00%h 0.00E+00 Sr-9O 0.002+00% 0.00E+00 Sr-90 0.00E+00% O.OOE+00 Sr-90 0.00E+00% 0.00E+00 Zr-95 0.00E+00 % 0.00E+00 Zr-95 0.00E+00% 0.00E+00 Zr-95 0.00E+00% 0.00E+00 Zr-95 0.00E+00%h 0.00E+00 Nb-95 0.00E+00%h 0.00E+00 Nb-95 0.00E+00% 0.00E+00 Nb-95 0.00E+00% 0.00E+00 Nb-95 0.00E+00% 0.00E+00 Tc-99 0.00E+00 % 0.00E+00 Tc-99 0.002E+00 O.O0E+00 Tc-99 0.00E+00% O.OOE+00 Tc-99 0.00E+00% 0.00E+00 Ag-tl0m 0.00E+00% 0.00E+00 Ag-110m 0.00E+00% 0.00E+00 Ag-110m 0.00E+00% 0.00E+00 Ag-110m 0.00E+00% 0.00E+00 Sn-113 0.00E+00% 0.00E+00 Sn-113 0.00E+00 0.00E+00 Sn-113 0.002+00% 0.00E+00 Sn-113 0.00E+00% 0.00E+00 Sb-125 0.002+00% 0.00E+00 Sb-125 0.00E+00h 0.00E+00 Sb-125 0.00E+00% 0.00E+00 Sb-125 O.00E+00% 0.00E+00 1-129 0.00E+0 0.00E+00 1-129 0.00E+00% .000E+00 1-129 0.00E+00h 0.00E+00 1-129 0.00E+00% O.00E+00 Cs-134 0.00E+00% 0.OOE+00 Cs-134 0.00E+00b 0.00E+00 Cs-134- 0.00E+00% 0.00E+00 Cs-134 0.00E+00h 0.00E+00 Cs-137 0.00E+00% 0.00E+00 Cs-137 0.00E+00% 0.00E+00 Cs-137 0.002+00% 0.00E+00 Cs-137 0.00E+00h 0.00E+00 Ce-144 0.00E+00% 0.00E+00 Ce-I1 0.00E+00% 0.00E+00 Ce-144 0.00E+00% 0.00E+00 Ce-144 0.00E+00% 0.00E+00 Pu-238 0.002+00% 0.00E+00 Pu-238 0.00E+00% 0.002+00 Pu-238 0.00E+00% 0.00E+00 Pu-238 0.002+00% 0.00E+00 Pu-239 0.00E+00% 0.00E+00 Pu-239 0.00E+00% 0.00E+00 Pu-239 0.00E+00% 0.00E+00 Pu-239 0.00E+00% 0.00E+00 Pu-241 0.00E+00% 0.00E+00 Pu-241 0.00E+00% 0.00E+00 Pu-241 0.00E+00% 0.00E+00 Pu-241 0.00E+00% 0.00E+00 Pu-242 0.00E+00% 0.00E+00 Pu-242 O.00E+00% 0.00E+00 Pu-242 0.00E+00% 0.00E+00 Pu-242 0.00E+00% 0.00E+00 An-241 0.002+00% 0.00E+00 Am-241 0.00E+00% 0.00E+00 Am-241 0.00E+00% 0.00E+00 Am-241 0.00E+00% 0.00E+00 Cm-242 0.00E+00% 0.00E+00 Cm-242 0.00E+00% 0.00E+00 Cm-242 0.00E+00% 0.00E+00 Cm-242 0.00E+00% 0.00E+00 Cm-243 0.00E+00% O.00E+00 Cm-243 0.002+00-% 0.00E+00 Cm-243 '0.00E+00% 0.00E+00 Cm-243 0.00E+00% 0.00E+00 Znr-95 0.00E+00% 0.00E+00 Zn-95 0.00E+00% 0.00E+00 Zn-95 0.00E+00% 0.00E+00 Zn-95 0.002+00% 0.00E+00

) )

ZION NUCLEAR POWER STATION ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT FOR 2004 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not irradiated iuel)

1. Type of waste and 2. Estimate of major nucdide composition
b. Dry compressible wasle. contaminated equipment. etc.

Waste Volume Activity Estim. Error Waste Volume Activity Estim. Error Waste Volume Activity Etatn i uts Waste Volume Activity Estim. Error Class in Activity - Class (C,) in Activity -

Class (m'I in Axt-.ty -

Class Im') in Activity A 0.OOE.00 0.OOE+00 2.50E+01% B 0.00E+00 0.00E+00 0.002+00% C 0001200 00OOE.00 0 OOE.00. AU 0 00+E00 0 00E+00 2.50E+01%

Nuclide Percent Activity NuCtide Percent Activity Nuchia Percent Activity Nuclide Percent Activity Name Abundance (Ci) Name Abundance (Ci) Name Abundance (CI) Name Abundance (Ci)

H-3 0.00E+00% 0.002+00 H-3 0.00E+00% 0.00E+00 H-3 O.OOE+00% 0 002E00 H-3 O.OOE+00% 0.002E00 C-14 O.OOE+00% 0.00E+00 C-14 0.00E+00% 0.002+00 C-14 OOOE+00% 0.00E+00 C-14 0.00+E00% 0.00E+00 Cr-51 0.00E+00% 0.00E+00 Cr-51 0.00E+00% 0.00E+00 Cr-51 0.00E+00% O.OoE200 Cr-51 O.OOE+00% 0.00E+00 Mn-54 0.OOE+00% 0.00E+00 Mn-54 0.00E+00% 0.00E+00 Mn-54 0.00E+00% 0.00+E00 Mn-54 0.00E+00% 0.002E00 Fe-55 0.00E+00% 0.OOE+00 Fe-55 o.ooE+00% 0.002+00 Fe-55 0.00E+00% 0.00E+00 Fe-55 0.00E+00% 0.002+00 Fe-59 0.00E+00% 0.00E+00 Fe-59 o.ooE+00% 0.00E+00 Fe-59 0.00E+00% 0.00.E00 Fe-59 0.00E+00% 0.00E+00 Co-57 0.00E+00% 0.OOE+00 Co-57 0.00E+00% 0.00E+00 Co-57 0.00E+00% 0.00E+00 Co-57 0.00E+00% 0.00E+00 Co-58 0.00E+00% 0.00E+00 Co-58 0.00E+00% 0.002+00 Co-58 0.002+00% 0.00E+00 Co-58 O.OOE+00% 0.00E+00 Co-60 0.00E+00% 0.00E+00 CO-GO 0.00E+00%h 0.00E+00 Co-60 0.00E+00% 0.00Et00 Co-60 0.00E+00% 0.00E+00 Ni-59 0.00E+00% 0.OOE+00 Ni-59 0.00E+00/ 0.00E+00 Ni-59 0.00+E00% 0.00E+00 Ni-59 0.00E+00% 0.00E+00 Ni-63 0.00E+00% 0.00E+00 Ni-63 0.002+00% Ni-63 0.00E+00% 0.00E+00 Ni-63 0.00E+00% 0.00E+00 0.00E+00V. Sr-89 0.002+D00 Sr-89 0.00E+00 0.00E+00% 0.00E+00 Sr-89 0.00E+00% 0.00E+00 Sr-89 0.00E+00% 0.00E+00 Sr-90 0.00E+00/. 0.00E+00 Sr-9O 0.00E+00% 0.00E+00 Sr-90 0.00E+00% 0.00E+00 Sr-90 0.002+00% 0.00E+00 Zr-95 O.00E+00% 0.00E+00 Zr.95 0.00E+00% O.00E+00 Zr-95 0.00E+00% 0.002+00 Zr-95 0.00E+00% 0.00E+00 Nb-95 0.OOE+00% 0.00E+00 Nb-95 0.00E+00%h 0.002+00 Nb-95 0.00E+00% 0.00E+00 Nb-95 0.00+E00%/. 0.00E+00 Tc-99 0.00E+00% 0.00E+00 Tc-99 0.00E+00% 0.00E+00 Tc-99 0.00E+00% 0.00E+00 Tc-99 0.00E+00% 0.00E+00 Ag-1 10m 0.002+00% 0.00E+00 Agl110m 0.00E+00% 0.002+00 Ag-1 10 O.OOE+00% 0.00E+00 Ag-1 10m 0.00E+00% 0.00E+00 Sn-1 13 0.OOE+00-. 0.00E+00 Sn-113 0.00E+00% 0.00E+00 Sn-113 0.00E+00% 0.00E+00 Sn-113 0.002E00% 0.00E+00 Sb-125 0.00E+00 h 0.00E+00 Sb-125 0.00+E0%. 0.00E+00 Sb-125 0.00E+00/ 0.00E+00 Sb-125 0.002+00o% 0.00E+00 1-129 0.00E+00% 0.00E+00 1-129 0.00E+00% 0.00E+00 1-129 0.0012+00% 0.002+00 1-129 0.00E+00% 0.00E+00 Cs-t34 O.OOE+00% 0.00E+00 Cs-134 0.00E+00Y. 0.00E+00 Cs-1 34 0.00E+00%b 0.00E+00 Cs-134 O.OOE+00/. 0.00E+00 Cs-137 0.00E+00% 0.00E+00 Cs-137 0.00E+00% 0.00E+00 Cs-137 0.00E+00% 0.00E+00 Cs-137 0.00E+00% 0.00E+00 Ce-14 0.00E+00% 0.00E+00 Ce-144 0.002+00% 0.00E+00 Ce-144 0.00E+00% 0.002+00 Ce-144 0.00E+00% 0.00E+00 Pu-238 0.00E+00% 0.00E+00 Pu-238 0.00E+00% 0.00E+00 Pu-23B 0.00E+00%b 0.00E+00 Pu-238 0.00+E00% 0.00E+00 Pu-239 0.00E+00% 0.00E+00 Pu-239 0.00E+00% 0.00E+00 Pu-239 0.00E+00% 0.00E+00 Pu-239 0.002+00%h 0.00E+00 Pu-241 0.002+00% 0.00E+00 Pu-241 0.00E+00% 0.00E+00 Pu-241 0.00E+00% 0.00E+00 Pu-24t 0.00E+00% 0.002+00 Pu-242 0.00E+00% 0.00E+00 Pu-242 0.00E+00% 0.00E+00 Pu-242 0.00E+00% 0.00E+00 Pu-242 0.00E+00% 0.00E+00 Arn-241 0.00E+00% 0.002+00 Am-241 0.00E+00%h 0.00E+00 Am-241 0.00E+00% 0.00E+00 Am-241 0.00E+00% 0.00E+00 Crn-242 0.00E+00% 0.00E+00 Cmn-242 0.00E+00/. 0.00E+00 Cm-242 0.00E+00% 0.002+00 Cm-242 0.00E+00% 0.002+00 Cm-243 0.00E+00% 0.00E+00 Cmn-243 0.00E+00% 0.002+00 Cm-243 0.002+00%b 0.002+00 Cm-243 0.002+00% 0.002+00 Zn-95 0.00E+00% 0.002+00 Zn-95 0.00E+00% 0.00E+00 Zn-95 0.00E+00% 0.00E+00 Zn-95 0.00E+00% 0.00E+00

,)

ZION NUCLEAR POWER STATION ANNUAL RADIOACTIVE EFFLUENT REPORT FOR 2004 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS A. SOLID WASTE SHIPPED OFFSITE FOR BURIAL OR DISPOSAL (Not irradiated fuel)

1. Type of waste and 2. Estimate of major nuclide composition
3. Solid Waste Disposition No solid waste shipments were performed during 2004.

B. IRRADIATED FUEL SHIPMENTS No irradiated fuel shipments were performed during 2004.

C. IRRADIATED COMPONENTS, CONTROL RODS, ETC.

No irradiated material shipments were performed during 2004.

7) ) .1)

Requirement from the ODCM 12.7.2 states that the station shall develop a plan to return to service any rad monitor that is out of service for greater than 30 days. This is in addition to the compensatory measures required for sampling and analysis. There were no rad monitors listed with this requirement in the ODCM for the 2004 year.

In compliance with requirements of Zion Station Annual Effluent Report (AER) the following is a synopsis of the review completed by Ron Schuster for the changes that were made to the Offsite Dose Calculation Manual in the year 2004.

There were none.

Description Revision Number Date in Effect Table of contents 3 January 2001 Chapter 1 3 January 2001 Chapter 2 3 January 2001 Chapter 3 3 January 2001 Chapter 4 3 January 2001 Chapter 5 3 January 2001 Chapter 6 3 January 2001 Chapter 7 3 January 2001 Chapter 10 6 June 2003 Chapter 11 3 January 2001 Chapter 12 12 October 2003 Appendix A 3 January 2001 Appendix B 3 January 2001 Appendix C 3 January 2001 Appendix F 3 January 2001 Appendix 0 3 January 2001 Review was completed on January 14, 2005

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 7 2 2 0 11 NNE 0 5 7 0 0 12 NE 5 3 0 0 0 8 ENE 1 0 0 0 0 1 E 2 0 0 0 0 2 ESE 0 0 0 0 0 0 SE 0 0 0 0 0 0 SSE 0 0 0 0 0 0 S 1 0 1 0 0 2 SSW 0 1 3 0 0 4 SW .0 3 1 0 0 4 WSW 1 5 0 0 0 6 W 2 5 5 0 0 12 WNW 1 5 2 1 0 SI NW 0 3 1 0 0 NNW 0 4 2 0 0 Variable 0 0 0 0 0 Total 13 41 24 3 0 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:

Zion Nuiclear Station Period of Record: January - March 2004 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 1 3 0 0 5 NNE 0 0 3 1 0 0 4 NE 0 3 2 0 0 0 5 ENE 0 2 3 0 0 0 5 E 0 0 0 0 0 0 0 ESE 0 1 0 0 0 0 1 SE 0 0 0 0 0 0 0 SSE 0 0 0 1 0 0 1 S 0 0 0 0 0 0 0 SSW 0 0 1 1 0 0 2 SW 0 1 3 0 0 0 4 WSW 0 1 1 3 0 0 5 W 0 1 5 2 2 0 10 WNW 0 4 5 3 0 0 12 NW 0 0 4 1 0 0 5 NNW 0 0 1 1 0 0 2 Variable 0 0 0 0 0 0 Total 0 14 29 16 2 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: C Hours of missing stability measurements 4n all stability classes: 0

Zion Nuclear Station Period of Record: January - March 2004 2 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 6 1 0 9 NNE 0 1 1 2 0 0 4 NE 0 3 3 0 0 0 6 ENE 0 3 2 0 0 0 5 E 0 0 0 0 0 0 0 ESE 0 1 1 0 0 0 2 SE 0 0 0 0 0 0 0 SSE 0 0 3 3 1 0 7 S 0 1 0 1 0 0 2 SSW 0 0 5 2 0 0 7 SW 0 0 2 6 0 0 8 WSW 0 1 5 5 0 0 11 W 0 3 9 4 5 0 22 WNW 0 1 4 3 0 0 8 NW 0 3 7 0 0 0 ic' NNW 1 0 0 0 0 0 Variable 0 0 0 0 0 0 -

Total 1 17 44 32 7 0 I.:

Hours of calm in this stability class: 0 Hours or missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes: (:

Zion Nuclear Station Period of Record: January - March 2004 2 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 14 36 16 13 0 79 NNE 2 14 17 6 0 0 39 NE 2 6 14 15 2 0 39 ENE 2 11 14 19 14 2 62 E 1 9 7 25 11 0 53 ESE 0 6 11 7 1 0 25 SE 2 10 21 9 0 0 42 SSE 0 14 42 25 2 0 83 S 1 11 8 5 0 0 25 SSW 2 4 36 17 0 0 59 SW 3 16 31 24 1 0 75 WSW 1 13 35 14 6 1 70 W 1 30 43 19 8 0 101 WNW 1 28 61 22 4 0 116 NW 0 20 66 11 1 0 98 NNW 1 17 26 15 0 0 59 Variable 0 0 0 0 C 0 0 Total 19 223 468 249 63 3 1025 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class4: 0 Hours of missing stability measurements in all stability classes: 0

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 6 6 4 0 16 NNE 3 10 2 0 15 NE 3 5 6 4 18 ENE 1 13 2 0 16 E 2 13 2 0 17 ESE 2 6 0 0 8 SE 0 6 5 1 12 SSE 1 9 21 11 45 S 3 17 19 4 43 SSW 4 23 16 4 48 SW 11 24 18 10 63 WSW 4 29 50 8 91 W 10 47 50 6 113 WNW 9 32 25 1 67 NW 4 37 10 0 51 NNW 8 13 6 0 27 Variable 0 0 0 0 C Total 71 290 236 49 4 0 E5 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: C Hours of missing stability measurements in all stability classes: 0

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Moderately Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 1 0 0 0 0 2 NNE 3 2 0 0 0 0 5 NE 1 1 0 0 0 0 2 ENE 0 2 0 0 0 0 2 E 0 2 0 0 0 0 2 ESE 2 0 0 0 0 0 2 SE 3 4 1 0 0 0 8 SSE 2 10 11 0 0 0 23 S 7 10 8 0 0 0 25 SSW 8 8 0 0 0 0 16 SW 11 4 2 0 0 0 17 WSW 7 4 0 0 0 0 11 W 6 9 0 0 0 0 15 WNW 4 7 0 0 0 0 11 NW 3 4 0 0 0 0 7 NNW 0 2 0 0 0 0 2 Variable 0 0 0 0 0 C) U Total 58 70 22 0 0 0 11,o Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: O Hours of missing stability measurements in all stability classes: 0

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 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 0 0 0 0 0 NE 0 0 0 0 0 ENE 0 0 0 0 0 E 0 0 0 0 0 ESE 0 0 0 0 0 SE 1 0 0 0 2 SSE 2 5 0 0 11 S 6 19 0 0 26 SSW 2 1 0 0 4 SW 1 4 0 0 5 WSW 0 6 0 0 6 W 0 3 0 0 3 WNW 1 6 0 0 7 NW 1 1 0 0 2 NNW 0 1 0 0 1 Variable 0 0 0 0 0 0 0 Total 15 46 7 0 0 0 68 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: 0o

Zion Nuclear Station Period of Record: January - March 2004

) Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 3 9 1 3 16 NNE 0 0 0 8 2 0 10 NE 0 3 2 0 0 0 5 ENE 0 1 0 0 0 0 1 E 0 2 0 0 0 0 2 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 1 0 1 SSW 0 0 1 0 3 0 4 SW 0 0 0 3 0 1 4 WSW 0 0 2 6 0 0 8 W 0 0 2 4 5 i 12 WNW 0 0 1 5 2 i 9 NW 0 0 0 4 0 4 NNW 0 1 0 3 1 5 Variable 0 0 0 0 C.

Total 0 7 11 42 15 t1 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability clas.;:

Hours of missing stability measurements in all stabilitrv cass.:: 4

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 4 1 0 5 NNE 0 0 2 1 0 0 3 NE 0 0 4 0 0 0 4 ENE 0 1 1 3 0 0 5 E 0 1 0 0 0 0 1 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 1 0 1 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 2 SSW 0 0 0 1 1 0 2 SW 0 1 0 3 3 0 7 WSW 0 1 0 2 0 0 3 W 0 1 1 3 3 2 10 WNW 0 2 1 5 3 0 12 NW 0 0 2 3 0 0 5 NNW 0 1 0 2 1 O 4 Variable 0 0 0 0 0 r -

Total 0 8 11 27 13 2 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: C Hours of missing stability measurements in all stability classes: 4

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Slightly Unstable - 25OFt-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0. 1 5 4 1 11 NNE 0 0 1 2 0 0 3 NE 0 2 2 0 0 0 4 ENE 0 3 0 2 0 0 5 E 0 0 0 0 0 0 0 ESE 0 1 1 0 0 0 2 SE 0 0 0 1 1 0 2 SSE 0 0 0 2 2 1 5 S 0 0 1 0 1 0 2 SSW 0 0 3 3 2 0 8 SW 0 0 0 2 3 3 8 WSW .0 1 2 8 3 4 18 W 1 2 3 3 2 4 15 WNW 0 1 1 4 4 0 10 NW 0 1 3 3 0 0 7 NNW 0 0. 0 1 0 0 2 Variable 0 0 0 0 0 C 0 Total 1 11 18 36 22 '3 103 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes: 4

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 17 25 21 15 81 NNE 0 1 13 11 14 3 42 NE 1 7 4 14 4 5 35 ENE 0 9 9 14 20 16 68 E 1 8 3 4 9 19 44 ESE 0 4 7 3 9 1 24 SE 0 1 18 37 24 0 80 SSE 1 4 15 20 7 0 47 S 0 6 6 4 8 1 25 SSW 0 3 6 35 18 4 66 SW 1 10 10 28 21 9 79 WSW 6 11 32 12 14 75

.0 W 0o 6 27 26 19 14 92 0

WNW 5 31 52 31 :C 12 9 0 199 NW 2 19 55 16 cgo 0

NNW 1 16 15 1C .; .

0 Variable 0 0 0 C C, Total 4 76 212 375 243 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability clsass:

Hours of missing stability measurements in all stability as.: 4 4

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 5 6 1 0 16 NNE 3 2 3 1 0 0 9 NE 2 3 3 4 2 1 15 ENE 0 1 6 2 2 3 14 E 0 8 12 8 0 0 28 ESE 3 1 3 3 0 0 10 SE 0 4 4 6 14 3 31 SSE 1 0 10 9 13 11 44 S 0 2 10 20 7 0 39 SSW 1 3 14 19 7 3 47 SW 1 2 15 22 21 2 63 WSW 3 3 14 52 24 4 100 W 1 4 24 51 16 4 100 WNW 1 11 16 24 14 0 66 NW 0 7 14 25 3 0 49 NNW 0 5 9 14 0 0 26 Variable 0 0 0 0 0 0 0 Total 16 60 162 266 124 31 r'59 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:

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Moderately Stable - 25OFt-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 0 5 NNE 0 0 0 0 0 NE 0 1 0 0 1 ENE 0 2 0 0 3 E 0 5 0 0 9 ESE 0 2 1 0 4 SE 0 2 2 0 8 SSE 0 10 4 4 27 S 2 7 3 0 21 SSW 0 14 2 0 23 SW 1 7 0 0 17 WSW .1 2 0 0 7 W 1 4 0 0 10 WNW 1 7 0 0 13 NW 0 2 0 0 7 NNW 0 3 0 0 Variable 0 0 0 0 0 Total 6 34 70 33 12 159 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: C.

Hours of missing stability measurements in all stability classes: A

Zion Nuclear Station Period of Record: January - March 2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 3 0 0 0 5 NNE 1 1 0 0 0 0 2 NE 2 2 0 0 0 0 4 ENE 0 0 1 0 0 0 1 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 3 3 5 0 11 S 0 2 9 11 2 1 25 SSW 0 1 6 1 0 1 9 SW 0 0 1 5 1 0 7 WSW 0 0 2 0 0 0 2 W 0 0 2 0 0 0 2 WNW 0 1 0 0 0 0 i NW 0 0 0 0 0 0 0 NNW 0 1 0 0 0 0 Variable 0 0 0 0 0 0 Total 3 10 27 20 8 2 71 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: A

Zion Nuclear Station Period of Record: April - June 2004 2 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 6 7 0 0 13 NNE 0 8 43 42 0 0 93 NE 0 10 16 4 0 0 30 ENE 0 3 0 0 0 0 3 E 1 8 6 1 0 0 16 ESE 0 7 7 0 0 0 14 SE 0 3 10 0 0 0 13 SSE 0 3 4 0 0 0 7 S 0 0 0 0 0 0 0 SSW 0 0 0 6 6 0 12 SW 0 0 12 9 1 0 22 WSW 1 2 22 6 1 0 32 W 0 3 10 5 1 0 19 WNW 0 2 5 1 0 0 6 NW 0 1 4 3 0 0 8 NNW 0 0 3 1 0 0 Variable 0 0 0 0 0 0 c Total 2 50 148 85 9 0 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: 0

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 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 1 3 1 0 0 5 NE 1 7 2 0 0 0 10 ENE 0 3 1 0 0 0 4 E 0 1 0 0 0 0 1 ESE 0 3 1 0 0 0 4 SE 0 0 1 0 0 0 1 SSE 0 1 0 0 0 0 1 S 0 0 0 0 0 0 0 SSW 0 1 1 1 0 0 3 SW 0 1 2 2 0 0 5 WSW 0 0 3 1 0 0 4 W 0 3 2 2 0 0 7 WNW 0 2 2 1 0 0 5 NW 0 0 2 0 0 0 2 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 1 23 25 9 0 0 58 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: 0

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 6 0 0 13 NNE 0 13 6 0 0 27 NE 0 6 0 0 0 8 ENE 1 5 0 0 0 7 E 1 2 0 0 0 3 ESE 1 7 1 0 0 12 SE 0 2 0 0 0 3 SSE 0 5 1 0 0 11 S 0 0 0 0 0 0 SSW 0 0 1 2 0 6 SW 0 0 8 0 0 8 WSW 0 1 3 0 0 11 W 0 1 1 1 0 7 WNW 0 0 0 0 0 4 NW 1 1 1 1 0 47 NNW 0 0 0 0 0 Variable 0 0 0 0 0 0 C.I Total 4 44 46 28 4 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: C Hours of missing stability measurements in all stability classes: C

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 23 51 58 2 0 134 NNE 5 45 31 15 0 0 96 NE 4 23 4 5 0 0 36 ENE 3 14 2 1 0 0 20 E 5 14 1 1 0 0 21 ESE 2 8 6 0 0 0 16 SE 0 14 4 0 0 0 18 SSE 1 10 30 2 0 0 43 S 0 5 5 2 0 0 12 SSW 2 6 9 5 6 1 29 SW 1 1 19 11 7 0 39 WSW 1 9 14 5 1 0 30 W 0 14 11 2 0 0 27 WNW 2 7 13 3 0 0 25 NW 0 8 12 1 1 0 22 NNW 0 8 10 3 4 0 25 Variable 0 0 0 0 0 0 0 Total 26 209 222 114 21 1 593 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: 0

I:

Zion Nuclear Station Period of Record: April - June 2004

.2 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 7 35 30 4 0 0 76 NNE 8 32 21 2 0 0 63 NE 11 30 3 0 0 0 44 ENE 4 6 3 1 0 0 14 E 7 9 10 0 0 0 26 ESE 14 13 12 1 0 0 40 SE 4 12 6 0 0 0 22 SSE 4 15 29 2 1 0 51 S 4 44 18 1 0 0 67 SSW 5 23 11 3 4 0 46 SW 8 26 22 5 7 0 68 WSW 8 16 12 1 0 0 37 W 4 20 6 0 0 0 30 WNW 7 20 5 0 0 0 32 NW 7 14 1 0 0 0 22 NNW 10 10 6 0 0 0 26 Variable 0 0 0 0 0 0 0 Total 112 325 195 20 12 0 664 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: 0

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N_____1__ 8---- 4_ 0_ 0_0 13---

N 1 8 4 0 0 0 13 NNE 1 8 3 0 0 0 12 NE 3 2 0 0 0 0 5 ENE 4 3 3 0 0 0 10 E 2 0 0 0 0 0 2 ESE 1 1 1 1 0 0 4 SE 4 4 2 0 0 0 10 SSE 6 13 13 0 0 0 32 S 7 34 6 1 0 0 48 SSW 5 10 2 0 0 0 17 SW 9 11 0 0 0 0 20 WSW 12 14 0 0 0 0 26 W 11 9 0 0 0 0 20 WNW 4 8 0 0 0 0 12 NW 6 5 0 0 0 0 11 NNW 2 8 0 0 0 '

Variable 0 0 0 0 C C 0 Total 78 138 34 2 0 C.

Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes: 0

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 0 0 0 2 NNE 1 0 1 0 0 0 2 NE 1 3 0 0 0 0 4 ENE 0 1 0 0 0 0 1 E 0 1 0 0 0 0 1 ESE 1 2 0 0 0 0 3 SE 1 0 0 0 0 0 1 SSE 3 8 23 0 0 0 34 S 8 21 9 0 0 0 38 SSW 9 4 0 0 0 0 13 SW 6 6 0 0 0 0 12 WSW 15 10 0 0 0 0 25 W 14 10 0 0 0 0 24 WNW 4 12 0 0 0 0 16 NW 3 0 0 0 0 0 3 NNW 3 0 0 0 0 0 3 Variable 0 0 0 0 C 0 0 Total 69 80 33 0 0 0 182 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: 0

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 7 17 23 1 48 NNE 0 28 29 11 2 73 NE 0 13 0 2 0 17 ENE 0 1 0 0 0 3 E 0 4 4 0 0 13 ESE 0 4 2 0 0 SE 0 13 5 0 0 21 SSE 0 1 1 1 0 3 S 0 0 0 0 1 1 SSW 0 0 1 5 7 13 SW 0 2 11 3 6 22 WSW 0 3 22 3 2 31 W 0 4 6 :1 r-16 WNW 0 0 6 I 8 NW 0 1 0 3 3 7 NNW 0 0 1 1 3 Variable 0 0 0 0 C.

Total 0 23 108 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability cia:;!;.::

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 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 6 NNE 0 0 0 7 NE 0 0 0 6 ENE 1 1 0 5 E 0 0 0 1 ESE 0 0 0 3 SE 0 0 0 2 SSE 0 0 0 1 S 0 0 0 0 SSW 0 2 0 4 SW 0 1 0 4 WSW 0 1 1 4 W 0 0 2 6 WNW 0 1 0 5 NW 0 0 0 2 NNW 0 0 C Variable 0 0 0 0 0 "@ C Total 1 15 14 17 7 3 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

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 4 10 9 3 28 NNE . 0 4 9 3 0 0 16 NE 0. 2 4 1 0 0 7 ENE 0 4 0 0 0 0 4 E 1 2 2 0 0 0 5 ESE 0 3 2 1 1 0 7 SE 0 2 4 2 0 0 8 SSE 0 1 5 3 0 0 9 S 0 0 0 0 0 0 0

- SSW 0 0 0 3 2 3 8 SW 0 0 0 0 2 6 8 WSW 0 0 2 6 3 0 11 W 0 0 1 2 0 2 5 WNW 0 1 2 2 0 0 5 NW 0 0 1 0 0 2 3 NNW 0 0 0 2 0 0 2 Variable 0 0 0 0 0 0 0 Total 1 21 36 35 17 16 126 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 11 31 40 63 30 176 NNE 0 13 15 20 5 0 53 NE 3 12 12 4 3 0 34 ENE 1 5 4 2 0 0 12 E 1 8 14 2 2 0 27 ESE 1 5 9 0 3 1 19 SE 0 3 16 4 0 0 23 SSE 3 5 14 16 4 0 42 S 0 2 5 0 3 0 10 SSW 0 2 5 7 7 8 29 SW 0 1 3 19 9 9 41 WSW 0 2 8 10 2 3 25 W 0 2 8 7 7 C 24 WNW 0 1 8 16 5 31 NW 0 0 9 7 0 19 NNW 0 3 5 7 3 3 Variable 0 0 0 0 0 Total 10 75 166 161 116 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability csse-;:

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 6 21 35 14 1 78 NNE 1 11 22 27 2 2 65 NE 1 11 22 1 0 0 35 ENE 0 9 2 3 1 1 16 E 1 12 3 6 6 4 32 ESE 1 11 11 7 11 6 47 SE 1 9 9 6 6 2 33 SSE 1 3 7 34 16 1 62 S 1 0 16 17 6 0 40 SSW 1 1 13 18 8 10 51 SW 0 2 12 28 5 6 53 WSW 0 3 9 18 7 0 37 W 0 6 15 12 1 0 34 WNW 0 4 14 13 3 0 34 NW 0 2 10 4 0 0 16 NNW 0 7 9 7 1 0 24 Variable 0 0 0 0 0 0 r Total 9 97 195 236 87 3'3 Hours of calm in this stability class: 0 Hours of missino wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes:

Zion Nuclear Station Period of Record: April - June 2004 l Stability Class - Moderately Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 6 9 1 0 19 NNE 3 7 8 7 0 0 25 NE 1 0 7 1 0 0 9 ENE 2 4 3 0 0 0 9 E 0 2 1 1 1 0 5 ESE 1 1 2 1 0 2 7 SE 0 2 7 5 2 0 16 SSE 0 7 9 10 6 0 32 S 1 0 17 18 6 1 43 SSW 1 0 8 11 1 0 21 SW 0 1 6 7 1 0 15 WSW 0 1 2 18 0 0 21 W 1 1 4 6 0 0 12 WNW 0 0 1 6 1 0 8 NW 0 2 2 3 0 0 7 NNW 0 1 2 1 0 0 4 Variable 0 0 0 0 v C Total 10 32 85 104 19 3 253 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 4

Zion Nuclear Station Period of Record: April - June 2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 3 0 0 0 0 6 NNE 1 4 0 0 0 0 5 NE 0 0 2 0 0 0 2 ENE 0 3 1 0 0 0 4 E 2 0 1 0 0 0 3 ESE 0 0 0 0 0 0 0 SE 0 2 4 0 2 0 8 SSE 1 2 1 5 4 1 14 S 0 1 6 23 15 0 45 SSW 1 2 7 6 2 0 18 SW 1 2 6 10 0 0 19 WSW 0 3 4 4 2 0 13 W 0 1 4 8 1 0 14 WNW 0 1 6 5 0 0 12 NW 0 2 2 6 0 0 '0 NNW 1 3 5 2 0 0 Variable 0 0 0 0 0 0 Total 10 29 49 69 26 3 ic-i Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Unstable - 25OFt-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 6 3 0 0 11 NNE 0 6 29 0 0 0 35 NE 0 14 8 0 0 0 22 ENE 0 6 0 0 0 0 6 E 0 3 0 0 0 0 3 ESE 0 6 1 0 0 0 7 SE 0 5 6 0 0 0 11 SSE 0 0 1 0 0 0 1 S 0 0 1 0 0 0 1 SSW 0 1 1 0 0 0 2 SW 0 0 11 0 0 0 11 WSW 0 3 2 3 0 0 8 W 0 6 14 1 0 0 21 WNW 0 3 3 0 0 0 6 NW 0 4 2 0 0 0 6 NNW 0 0 2 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 59 87 7 0 0 153 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: 0

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Moderately Unstable - 25OFt-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 5 NNE 0 S 5 NE 5 6 11 ENE 3 1 4 E 2 0 2 ESE 1 0 1 SE 2 3 5 SSE 0 2 2 S 0 1 1 SSW 0 3 4 SW -2 6 10 WSW 1 4 5 W 3 2 5 WNW 0 0 0 NW 1 0 1 NNW 0 1 1 Variable 0 .0 0 Total 20 38 62 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: 0

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 1 0 5 NNE 0 8 7 0 0 15 NE 0 12 3 0 0 15 ENE 0 8 1 0 0 9 E 0 7 0 0 0 7 ESE 0 6 3 0 0 9 SE 0 5 9 0 0 14 SSE 0 4 5 0 0 9 S 1 0 0 0 1 SSW 5 2 1 0 8 SW 4 10 2 0 16 WSW 3 9 3 0 15 W 1 2 0 0 4 WNW 5 1 0 0 6 NW 1 1 0 0 2 NNW 1 0 0 0 1 Variable 0 00 0 0 0 Total 71 54 7 0 136 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: 0o

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 13 54 27 0 99 NNE 1 39 42 6 0 88 NE 3 39 9 10 0 61 ENE 0 10 2 1 0 13 E 4 11 0 0 0 15 ESE 0 26 4 0 0 30 SE 1 27 16 0 0 44 SSE 0 37 58 5 0 100 S 1 26 13 2 0 42 SSW 4 19 9 2 0 34 SW 0 13 9 5 0 27 WSW 1 14 17 3 0 35 W 1 26 30 0 0 57 WNW 0 12 13 0 0 25 NW 5 6 7 0 0 18 NNW 0 10 10 0 0 20 Variable 0 0 0 0 0 0 Total 23 328 293 61 0 708 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: 0

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 5 30 12 1 0 48 NNE 8 21 15 5 0 49 NE 4 4 2 0 0 10 ENE 7 2 3 1 0 13 E 2 5 0 0 0 7 ESE 6 16 1 0 0 23 SE 4 27 12 1 0 44 SSE 5 26 29 6 0 66 S 21 76 14 0 0 111 SSW 15 57 3 0 0 75 SW 5 17 2 0 0 24 WSW 10 25 5 0 0 40 W 3 35 7 0 0 45 WNW 6 18 1 0 0 25 NW 5 26 2 0 0 33 NNW .3 18 2 0 0 23 Variable 0 0 0 0 0 0 Total 109 403 110 14 0 636 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: 0

\J

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Moderately St'able - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 4 6 NNE 3 0 3 NE 1 0 1 ENE 0 0 0 E 0 1 1 ESE 0 0 0 SE 1 2 3 SSE 2 1 4 S 15 39 54 SSW 31 24 55 SW 23 .7 30 WSW 21 6 27 W 16 12 28 WNW 7 13 20 NW 4 16 20 NNW 8 6 14 Variable 0 0 0 Total 134 131 0 266 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: 0o

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 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 ESE 0 0 0 SE 0 0 0 SSE 1 1 2 S 4 6 10 SSW 12 7 19 SW 23 6 29 WSW 22 16 38 W 27 44 71 WNW 16 14 30 NW 4 5 9 NNW 0 0 0 Variable 0 0 0 Total 109 99 0 208 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: 0 K)

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Unstable - 25OFt-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 9 14 NNE 2 26 6 36 NE 4 9 6 19 ENE 3 0 0 3 E 4 2 0 6 ESE 1 5 0 6 SE 1 7 4 12 SSE 0 0 0 0 S 0 0 1 1 SSW 0 1 2 3 SW .0 2 6 11 WSW 2 1 2 9 W 4 7 10 21 WNW 1 4 1 6 NW 0 4 2 6 NNW 0 0 0 0 Variable 0 0 0 0 0 Total 22 73 49 0 153 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 3 5 NNE 3 1 8 NE 6 1 8 ENE 2 1 5 E 1 0 1 ESE 0 0 0 SE 3 2 6 SSE 0 1 2 S 0 1 2 SSW 1 2 3 SW 3 5 10 WSW 1 3 6 W 2 1 4 WNW 0 0 0 NW 1 1 2 NNW 0 0 0 Variable 0 0 0 Total. 24 22 0 62 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 5 NNE 1 18 0 1 20 NE 1 10 0 1 12 ENE 3 3 0 0 7 E 5 1 0 0 6 ESE 3 2 3 0 8 SE 4 9 9 0 22 SSE 0 0 3 0 3 S 0 1 0 1 2 SSW 0 6 1 0 7 SW 6 4 7 17 WSW 0 5 5 5 15 W 1 0 2 0 3 WNW 3 3 1 0 7 NW 0 1 0 0 1 NNW 0 1 0 0 1 Variable 0 0 0 0 0 Total 21 66 28 16 4 136 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 5 12 44 31 18 111 NNE 1 20 36 22 8 0 87 NE 1 10 19 2 12 3 47 ENE 0 4 4 1 1 1 11 E 3 5 4 0 0 0 12 ESE 1 12 13 3 0 0 29 SE 2 14 35 30 4 0 85 SSE 0 5 35 21 5 1 67 S 0 5 12 7 2 2 28 SSW 0 6 17 10 2 1 36 SW 0 .4 14 10 5 0 33 WSW 0 4 7 23 6 1 41 W 1 3 21 27 5 0 57 WNW 0 4 8 13 0 0 25 NW 1 2 7 6 0 0 16 NNW 1 2 7 11 1 0 22 Variable 0 0 0 0 0 0 0 Total 12 105 251 230 82 27 707 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Stable - 25OFt-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 20 21 5 51 NNE 7 19 16 8 55 NE 6 2 0 2 13 ENE 6 1 3 2 13 E 3 4 3 0 12 ESE 10 9 8 2 31 SE 7 15 17 11 51 SSE 11 34 38 25 109 S 7 14 26 6 53 SSW 7 31 32 1 72 SW .2. 23 9 0 35 WSW 5 14 16 0 37 W 1 14 32 0 47 WNW 3 4 15 1 23 NW 3 8 12 2 25 NNW 3 9 10 1 23 Variable 0 0 0 0 0 Total 16 84 221 258 66 5 650 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Moderately Stable - 25OFt-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 7 0 12 NNE 5 10 0 15 NE 0 2 1 5 ENE 1 0 0 2 E 4 1 0 7 ESE 3 1 1 7 SE 4 9 6 20 SSE 8 11 21 42 S 4 21 17 43 SSW 4 9 20 33 SW *2 7 5 16 WSW 2 8 9 20 W 3 7 9 19 WNW 1 5 3 10 NW 0 3 3 6 NNW 1 7 8 16 Variable 0 0 0 0 Total 12 46 108 103 4 0 273 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 5 3 2 0 12 NNE 1 10 1 0 0 12 NE 2 5 1 0 0 8 ENE 1 2 0 1 0 4 E 1 2 0 0 0 3 ESE 0 4 0 0 0 4 SE 0 3 0 0 0 3 SSE 2 3 1 3 2 11 S 1 3 6 7 0 17 SSW 0 6 21 10 0 37 SW 0 8 6 8 0 22 WSW 0 5 15 7 3 30 W 0 2 4 12 7 25 WNW 0 4 2 5 0 11 NW 1 4 1 2 0 8 NNW 0 0 2 0 0 2 Variable 0 0 0 0 0 0 Total 11 66 63 57 12 0 209 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N_0 0_ 0 0_ 0 0__ 0----

N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 3 1 0 0 0 4 E 0 2 0 0 0 0 2 ESE 0 0 0 0 0 0 0 SE 0 0 1 0 0 0 1 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 1 0 0 0 1 SW 0 0 4 1 0 0 5 WSW 0 0 2 0 0 0 2 W 0 0 3 0 0 0 3 WNW 0 0 1 0 0 0 1 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 C' Total 0 5 13 1 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements ir this stability class: 0 Hours of missing stability measurements in all stability classes: 0

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N_____0_ 0- 0 0__ 0 0-N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 1 NE 0 0 1 0 0 0 1 ENE 0 1 1 0 0 0 2 E 0 0 2 0 0 0 2 ESE 0 1 0 0 0 0 1 SE 0 1 0 0 0 0 1 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 1 2 0 0 3 WSW 0 0 3 2 0 0 5 W 0 0 5 0 0 0 5 WNW 0 0 0 0 0 0 0 NW 0 0 1 2 0 0 3 NNW 0 0 0 1 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 3 14 7 0 0 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: 0

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 1 6 0 0 0 7 NE 0 0 3 2 0 0 5 ENE 0 0 0 1 0 0 1 E 0 1 4 3 0 0 8 ESE 0 2 1 0 0 0 3 SE 0 0 0 0 0 0 0 SSE 0 1 1 0 0 0 2 S 0 0 2 0 0 0 2 SSW 0 0 2 1 0 0 3 SW 0 1 2 2 0 0 5 WSW 0 0 2 1 0 0 3 W 0 1 9 2 0 0 i2 WNW 0 0 9 1 0 0 1 C, 20 NW 0 1 2 7 0 0 NNW 0 0 2 0 0 0 -<-

Variable 0 0 0 0 0 C0 Total 0 8 45 20 0 0 I

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: ')

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 23 36 12 3 74 NNE 2 26 37 14 1 80 NE 1 25 27 10 6 69 ENE 1 8 24 22 5 60 E 1 8 26 22 0 57 ESE 2 15 21 16 8 62 SE 0 10 6 4 0 20 SSE 1 14 29 30 5 79 S 2 23 37 10 0 72 SSW 4 45 48 10 2 109 SW 2 42 45 37 1 128 WSW 4 29 32 26 2 93 W 4 26 58 22 1 111 WNW 7 34 56 24 3 124 NW 10 31 60 22 0 123 NNW 5 9 52 17 0 83 Variable 0 0 0 0 C, 0 Total 46 368 594 298 37 1 1344 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: 0

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 8 2 0 0 0 13 NNE 1 2 0 1 0 0 4 NE 1 4 2 1 1 0 9 ENE 2 3 9 0 0 0 14 E 1 4 5 0 0 0 10 ESE 2 3 3 0 0 0 8 SE 7 7 0 0 0 0 14 SSE 4 13 6 5 2 0 30 S 4 23 16 0 0 0 43 SSW 5 34 19 4 0 0 62 SW 5 24 44 11 0 0 84 WSW 8 15 37 0 0 0 60 W 12 29 14 1 0 0 56 WNW 14 23 10 0 0 0 47 NW 14 32 6 0 0 0 52 NNW 4 23 9 0 0 0 36 Variable 0 0 0 0 0 0 0 Total 87 247 182 23 3 0 542 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: 0

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Stable - 25OFt-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 3 NNE 0 1 0 1 NE 2 0 0 2 ENE 1 1 0 2 E 0 0 0 0 ESE 1 0 0 1 SE 0 1 0 1 SSE 1 1 0 4 S 1 9 0 11 SSW 7 11 0 18 SW 6 5 0 12 WSW 1 4 0 5 W 7 9 0 16 WNW 4 16 0 20 NW 7 5 0 12 NNW 2 6 CO 8 Variable 0 0 0 0 0 0 Total 40 71 4 0 a 0 1'1I 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: 0

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 1 0 0 0 0 3 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 3 S 0 2 1 0 0 0 8 SSW 4 4 0 0 0 0 14 SW 3 11 0 0 0 0 10 WSW 5 5 0 W 1 4 0 0 0 0 5 WNW 5 13 0 0 0 0 18 NW 2 3 0 0 0 0 5 NNW 5 0 0 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 27 43 I 0 0 0 71 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: 0

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 4 0 0 0 4 E 0 0 2 0 0 0 2 ESE 0 0 0 0 0 0 0 SE 0 0 0 1 0 0 1 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 2 0 1 0 3 SW 0 0 1 2 0 0 3 WSW 0 0 0 2 0 0 2 W 0 0 1 3 0 C 4 WNW 0 0 0 0 0 a 0 NW 0 0 0 0 0  : 0 NNW 0 0 0 0 0 0 Variable 0 0 0 0 0 (

Total 0 0 10 8 1 Hours of calm in this stability class: 0 Hours of missina wind measurements in this stabilitv class:

Hours of missing stability measurements in all stability class*2: i

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 1 0 0 0 1 NE 0 1 0 0 0 0 1 ENE 0 0 1 0 0 0 1 E 0 1 1 1 0 0 3 ESE 0 0 0 0 0 0 0 SE 0 0 1 0 0 0 1 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 1 0 1 SW 0 0 1 1 1 0 3 WSW 0 0 0 2 1 2 5 W 0 0 1 3 0 0 4 WNW 0 0 0 0 1 0 1 NW 0 0 0 1 2 0 3 NNW 0 0 0 0 0 C 5 Variable 0 0 0 0 0 v0 Total 0 2 6 8 6 24 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: ip

Zion Nuclear Station Period of Record: October - December2004

) Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 4 5 0 0 9 NE 0 0 1 0 2 0 3 ENE 0 1 0 0 1 0 2 E 0 0 3 1 4 0 8 ESE 0 0 1 1 0 0 2 SE 0 0 1 0 0 0 1 SSE 0 0 1 0 0 0 1 S 0 0 0 2 0 0 2 SSW 0 0 0 2 1 0 3 SW 0 0 2 1 2 0 5 WSW 0 0 0 3 0 2 5 W 0 0 6 4 0 1 11 WNW 0 0 1 7 3 1 12 NW 0 0 2 2 5 0 9 NNW 0 0 0 0 0 C 0 Variable 0 0 0 0 0 0 C Total 0 1 22 28 18 4 73 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 12

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 17 31 13 7 69 NNE 0 13 18 37 15 11 94 NE 0 2 19 24 3 7 55 ENE 1 1 11 21 18 12 64 E 0 0 16 20 14 9 59 ESE 0 5 15 11 8 9 48 SE 1 7 14 17 19 2 60 SSE 1 3 15 22 9 6 56 S 0 3 24 36 14 5 82 SSW 0 7 37 44 21 6 115 SW 0 9 35 36 31 7 118 WSW 2 9 22 22 24 11 90 W 2 11 18 37 38 13 119 WNW 2 10 30 54 15 1c 130 NW 4 8 19 61 35 A, 131 NNW 0 3 9 25 i i .)

Variable 0 0 0 0 (l Total 13 92 319 498  ; 544 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: '

Hours of missing stability measurements in all stability c:;'."s: 18

Zion Nuclear Station Period of Record: October - December2004 J Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 5 11 0 0 17 NNE 0 2 2 4 1 2 11 NE 0 2 1 5 0 0 8 ENE 0 1 2 11 1 0 15 E 0 2 2 2 2 0 8 ESE 0 4 6 2 2 0 14 SE 0 4 7 1 0 1 13 SSE 1 5 10. 12 5 6 39 S 1 4 15 16 8 1 45 SSW 0 1 17 22 18 1 59 SW 0 4 15 43 20 3 85 WSW 2 4 10 27 10 0 53 W 0 5 11 22 9 0 47 WNW 1 1 10 16 2 0 30 NW 1 6 21 22 4 0 54 NNW 0 7 27 9 2 0 45 Variable 0 0 0 0 0 0 0 Total 6 53 161 225 84 14 543 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: 18

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 6 3 0 0 12 NNE 0 2 2 0 0 5 NE 1 0O 0 0 0 3 ENE 0 1 1 0 0 4 E 0 1 0 0 0 2 ESE 2 1 0 0 0 3 SE 1 2 0 0 0 6 SSE 0 1 1 0 2 6 S 0 0 6 2 0 13 SSW 0 1 9 0 0 11 SW 0 0 4 2 0 8 WSW . 0 0 5 0 0 7 W 1 2 I 0 0 4 WNW 0 0 10 0 0 12 NW 0 0 5 0 0 7 NNW 0 4 2 0 0 13 Variable 0 0 0 0 0 0 0 Total 5 21 35 49 4 2. 116 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: 18

Zion Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N_____0__ 2---- 2---- 0---- 0---- 0---- --

4--

N 0 2 2 0 0 0 4 NNE 0 2 2 0 0 0 4 NE 0 2 1 1 0 0 4 ENE 1 5 1 0 0 0 7 E 0 2 1 0 0 0 3 ESE 0 1 0 0 0 0 1 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 1 5 1 0 1 8 SSW 0 0 4 7 1 0 12 SW 0 0 3 9 1 0 13 WSW 0 1 0 2 2 0 5 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 3 2 0 0 0 5 NNW 0 2 2 1 0 0 5 Variable 0 0 0 0 0 0 C Total 1 21 23 21 4 1 71 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: 18

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