ML13135A009

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Submittal of 2012 Annual Radiological Environmental Operating Report
ML13135A009
Person / Time
Site: Zion  File:ZionSolutions icon.png
Issue date: 05/08/2013
From: Bouchard G H
ZionSolutions
To:
Document Control Desk, NRC/FSME
References
ZS-2013-0185
Download: ML13135A009 (182)
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Text

ZIONSOLUTIONSLLC An Ene ySoW-c on-nC y May 8, 2013 ZS-2013-0185 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Zion Nuclear Power Station, Units 1 and 2 Facility Operating License Nos. DPR-39 and DPR-48 NRC Docket Nos. 50-295 and 50-304

Subject:

Submittal of Zion Nuclear Power Station, Unit I and 2, 2012 Annual Radiological Environmental Operating Report In accordance with Technical Specification 5.7.2, "Annual Radiological Environmental Operating Report" Zion Station is submitting the 2012 Annual Radiological Environmental Operating Report for Unit I and 2. Technical Specification 5.7.2 requires submittal of an Annual Radiological Environmental Operating Report before May 15 of each year. The attachment to this letter is. the Annual Radiological Environmental Operating Report.If you have any questions about this report, please contact Christopher Keene at (224) 789-4073.Respectfully, Gary B~2chard Decommissioning Plant Manager Zion Station cc: John Hickman, U.S. NRC Senior Project Manager Service List

Attachment:

2012 Annual Radiological Environmental Operating Report 101 Shiloh Boulevard, Zion

  • IL 60099 (224) 789-4016
  • Fax: (224) 789-4008
  • www.zionsolutionscompany.com Zion Nuclear Power Station,.Unit 1 and 2 License Transfer Service List cc: Patrick T. Daly Senior VP and General Manager ZionSolutions, LLC 101 Shiloh Boulevard Zion, IL 60099 (Cover letter only, no attachments)

Patrick Thurman, Esq.VP Regulatory Affairs, Licensing

&Document Control ZionSolutions, LLC 101 Shiloh Boulevard Zion, IL 60099 (Cover letter only, no attachments)

Gary Bouchard VP Engineering, Ops & Nuclear Security and Decommissioning Plant Manager ZionSolutions, LLC 101 Shiloh Boulevard Zion, IL 60099 (Cover letter only, no attachments)

Alan Parker President Projects Group EnergySolutions 1009 Commerce Park Drive, Ste. 100 Oak Ridge, TN 37830 (Cover letter only, no attachments)

John Christian President of Logistics, Processing and Disposal (LP& D) Group EnergySolutions 1750 Tysons Boulevard, Suite 1500 Mclean, VA 22102 (Cover letter only, no attachments)

Dan Shrum Senior VP Regulatory Affairs EnergySolutions 423 West 300 South, Ste. 200 Salt Lake City, UT 84101 (Cover letter only, no attachments)

Russ Workman General Counsel EnergySolutions 423 West 300 South, Ste. 200 Salt Lake City, UT 84101 (Cover letter only, no attachments)

Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1035 Outer Park Drive Springfield, IL 62704 (Cover letter only, no attachments)

Kent McKenzie Emergency Management Coordinator Lake .County Emergency Management Agency 1303 N. Milwaukee Avenue Libertyville, IL 60048-1308 (Cover letter only, no attachments)

Regional Administrator U.S. NRC, Region III 2443 Warrenville Road Lisle, IL 60532-4352 John E. Matthews Morgan, Lewis & Bockius LLP 1111 Pennsylvania Avenue, NW Washington, DC 20004 (Cover letter only, no attachments)

NRC Docket No: 50-295 50-304 ZION NUCLEAR POWER STATION UNITS 1 and 2 Annual Radiological Environmental Operating Report 1 January Through 31 December 2012 Prepared By Teledyne Brown Engineering Environmental Services ZIONSOLUTIONS.L Zion Nuclear Power Station Zion, IL 60099 May 2013 I of 180 Table Of Contents I. Sum m ary and Conclusions

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1 II. Introduction

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3-A. O bjectives of the REM P ..................................................................................

3 B. Im plem entation of the O bjectives

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3 Ill. Program Description

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3 A. Sam ple Collection

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3 B. Sam ple Analysis ............................................................................................

5 C. Data Interpretation

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5 D. Program Exceptions

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6 E. Program Changes .........................................................................................

8 IV. Results and Discussion

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9 A. Aquatic Environm ent .......................................................................................

9 1. Public W ater .......................................................................................

9 2. Fish .....................................................................................................

9 3. Sedim ent ............................................................................................

10 B. Atm ospheric Environm ent ...........................................................................

10 1. Airborne ..............................................................................................

10 a. Air Particulates

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10 C. Am bient Gam m a Radiation

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10 D. Land Use Survey ..........................................................................................

11 E. Errata Data ...................................................................................................

12 F. Summary of Results -Inter-laboratory Comparison Program .....................

15 2 of 180 Appendices Appendix A Tables Table A-1 Appendix B Tables Table B-1 Table B-2 Figures Figure B-1 Figure B-2 Appendix C Tables Table C-1.1 Table C-1.2 Table C-1.3 Table C-11.1 Table C-111.1 Radiological Environmental Monitoring Report Summary Radiological Environmental Monitoring Program Annual Summary for the Zion Nuclear Power Station, 2012 Location Designation, Distance & Direction, and Sample Collection

&Analytical Methods Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2012 Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2012 Inner Ring TLD Locations and Fixed Air Samplers of the Zion Nuclear Power Station, 2012 Fish, Water and Sediment Locations of the Zion Nuclear Power Station, 2012 Data Tables and Figures -Primary Laboratory Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.ii 3 of 180 Table C-IV.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Table C-IV.2 Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3 pCi/cu meter) in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Table C-IV.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Table C-V.1 Quarterly TLD Results for Zion Nuclear Power Station, 2012.Table C-V.2 Mean Quarterly TLD Results for the Inner and Other Locations for Zion Nuclear Power Station, 2012.Table C-V.3 Summary of the Ambient Dosimetry Program for Zion Nuclear Power Station, 2012.Figqures Figure C-1 Public Water -Gross Beta -Stations Z-1 4 and Z-1 5 Collected in the Vicinity of ZNPS, 2000 -2012.Figure C-2 Public Water -Gross Beta -Stations Z-1 6 and Z-1 8 Collected in the Vicinity of ZNPS, 2000 -2012.Figure C-3 Public Water -Tritium -Stations Z-1 4 and Z-1 5 Collected in the Vicinity of ZNPS, 2000 -2012.Figure C-4 Public Water -Tritium -Stations Z-1 6 and Z-1 8 Collected in the Vicinity of ZNPS, 2000 -2012.Figure C-5 Air Particulates

-Gross Beta -Stations Z-01 and Z-02 Collected in the Vicinity of ZNPS, 2000 -2012.Figure C-6 Air Particulate

-Gross Beta -Station Z-03 Collected in the Vicinity of ZNPS, 2000 -2012.Appendix D Inter-Laboratory Comparison Program Tables Table D-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2012 Table D-2 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2012 Table D-3 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)Teledyne Brown Engineering, 2012 Table D-4 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2012 iii 4 of 180 Table D-5 Appendix E Appendix F Appendix G DOE's Mixed Analyte Performance Evaluation Program (MAPEP)Environmental, Inc., 2012 Effluent Data Meteorological Data Annual Radiological Groundwater Protection Program Report (ARGPPR)iv 5 of 180 I. Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for the Zion Nuclear Power Station (ZNPS) by ZionSolutions (ZS) covers the period 1 January 2012 through 31 December 2012. During that time period, 437 analyses were performed on 361 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of ZNPS had no adverse radiological impact on the environment.

Public water samples were analyzed for concentrations of gross beta, tritium and gamma emitting nuclides.

No fission or activation products were detected.Gross beta activities detected were consistent with those detected in previous years.Fish (commercially and recreationally important species) and sediment samples were analyzed for concentrations of gamma emitting nuclides.

No Cs-137 activity was detected in fish or sediment samples. No plant produced fission or activation products were found in fish or sediment.Air particulate samples were analyzed for concentrations of gross beta and gamma emitting nuclides.

No fission or activation products were detected.Environmental gamma radiation measurements were performed quarterly using thermoluminescent dosimeters. 6 of 180 Intentionally left blank-2-7 of 180 II. Introduction The Zion Nuclear Power Station (ZNPS), consisting of two 1,100 MWt pressurized water reactor was owned and operated by Exelon Corporation, is located in Zion, Illinois adjacent to Lake Michigan.

Unit No. 1 went critical in December 1973. Unit No. 2 went critical in September 1974. The plant permanently ceased operation in January of 1998 and has been permanently defueled.

The site is located in northeast Illinois on the western shore of Lake Michigan, approximately 50 miles north of Chicago, Illinois.This report covers those analyses performed by Teledyne Brown Engineering (TBE), Mirion and Environmental Inc. (Midwest Labs) on samples collected during the period 1 January 2012 through 31 December 2012.A. Objective of the REMP The objectives of the REMP are to: 1. Provide data on measurable levels of radiation and radioactive materials in the site environs.2. Evaluate the relationship between quantities of radioactive material released from the plant and resultant radiation doses to individuals from principal pathways of exposure.B. Implementation of the Objectives The implementation of the objectives is accomplished by: 1. Identifying significant exposure pathways.2. Establishing baseline radiological data of media within those pathways.3. Continuously monitoring those media before and during Station operation to assess Station radiological effects (if any) on man and the environment.

Ill. Program Description A. Sample Collection Samples for the ZNPS REMP were collected for ZS by Environmental Inc.(Midwest Labs). This section describes the general collection methods used by Environmental Inc. (Midwest Labs) to obtain environmental 8 of 180 samples for the ZNPS REMP in 2012. Sample locations and descriptions can be found in Table B-1 and Figures B-1 and B-2, Appendix B. The sampling methods used by Environmental Inc. (Midwest Labs) are listed in Table B-2.Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of public water, fish and sediment.

Two gallon water samples were collected monthly from four public water locations (Z-14, Z-15, Z-16 and Z-18). Control locations were Z-14 and Z-18. All samples were collected in new unused plastic bottles, which were rinsed at least twice with source water prior to collection.

Fish samples comprising the flesh of common carp, chinook salmon, lake trout, burbot and smallmouth bass were collected semiannually at two locations, Z-26 and Z-27.Sediment samples composed of recently deposited substrate were collected at one location semiannually, Z-25.Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulates.

Airborne particulate samples were collected and analyzed weekly at three locations (Z-01, Z-02 and Z-03). No control location was required.

Airborne particulate samples were obtained at each location, using a vacuum pump with glass fiber filters attached.

The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.Ambient Gamma Radiation Direct radiation measurements were made using 2 CaF 200 and 2 LiF 100 LiF 4-chip Harshaw thermoluminescent dosimeters (TLD). Each location consisted of 2 TLD sets. The TLD locations were placed on and around the ZNPS site at the following locations:

Z-101, Z-102, Z-103, Z-104, Z-105, Z-106, Z-107, Z-108, Z-110, Z-111, Z-112, Z-113, Z-114, Z-115, Z-301, Z-01, Z-02 and Z-03.No control locati6n was required.The specific TLD locations were determined by the following criteria: 1. The presence of relatively dense population; 9 of 180

2. Site meteorological data taking into account distance and elevation for each of the sixteen-22 1/2 degree sectors around the site, where estimated annual dose from ZNPS, if any, would be most significant;
3. On hills free from local obstructions and within sight of the vents (where practical);
4. And near the closest dwelling to the vents in the prevailing downwind direction.(Two TLDs -each comprised of two CaF 2 200 and 2 LiF 100 LiF 4-chip thermoluminescent phosphors enclosed in plastic -were placed at each location approximately four to eight feet above ground level. The TLDs were exchanged quarterly and sent to Mirion Technologies for analysis.B. Sample Analysis This section describes the general analytical methodologies used by TBE and Environmental Inc. (Midwest Labs) to analyze the environmental samples for radioactivity for the ZNPS REMP in 2012. The analytical procedures used by the laboratories are listed in Table B-2.In order to achieve the stated objectives, the current program includes the following analyses: 1. Concentrations of beta emitters in public water and air particulates.
2. Concentrations of gamma emitters in public water, air particulates, fish and sediment.3. Concentrations of tritium in public water.4. Ambient gamma radiation levels at various site environs.C. Data Interpretation The radiological and direct radiation data collected prior to Zion Nuclear Power Station becoming operational were used as a baseline with which these operational data were compared.

For the purpose of this report, Zion Nuclear Power Station was considered operational at initial criticality.

In addition, data was compared to previous years' operational data for consistency and trending.

Several factors were important in the interpretation of the data:-5-10 of 180

1. Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is defined as the smallest concentration of radioactive material in a sample that would yield a net count (above background) that would be detected with only a 5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD is intended as a before the fact estimate of a system (including instrumentation, procedure and sample type) and not as an after the fact criteria for the presence of activity.

All analyses were designed to achieve the required ZNPS detection capabilities for environmental sample analysis.The minimum detectable concentration (MDC) is defined above with the exception that the measurement is an after the fact estimate of the presence of activity.2. Net Activity Calculation and Reporting of Results Net activity for a sample was calculated by subtracting background activity from the sample activity.

Since the REMP measures extremely small changes in radioactivity in the environment, background variations may result in sample activity being lower than the background activity affecting a negative number. An MDC was reported in all cases where positive activity was not detected.Gamma spectroscopy results for each type of sample were grouped as follows: For public water, sediment and air particulates 11 nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, Cs-134, Cs-137, Ba-140 and La-140 were reported.Means and standard deviations of the results were calculated.

The standard deviations represent the variability of measured results for different samples rather than single analysis uncertainty.

D. Program Exceptions For 2012 the ZNPS REMP had a sample recovery rate in excess of 99%.Sample anomalies and missed samples are listed in the tables below:-6-11 of 180 Table D-1 LISTING OF SAMPLE ANOMALIES Sample Location Collection Reason Type Code Date AP Z-01 03/07/12 Field check log missing from air sampler; Program Coordinator prepared replacement on 03/07/12.AP Z-02 04/25/12 No apparent reason for low reading of 132.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />; pump and timer functioning at time of collection; station notified.AP Z-03 11/28/12 No apparent reason for low reading of 155.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />; pump and timer functioning at time of collection; station notified.AP Z-01 12/12/12 Filter torn; fiber backing disk missing from sample holder allowed vacuum to tear filter; collector obtained new holder from EIML.Due to an incorrect setting on one of twelve gamma detectors, there was an incorrect MDC reported for samples analyzed on this detector.Teledyne Brown Engineering initiated Nonconformance 13-07 to investigate the issue and corrective actions have been implemented.

All samples counted on the affected detector were reprocessed using the correct calculation.

As a result, all MDCs for these samples have increased by 41.6%. The previously reported activities and uncertainties were not affected.

In some cases, the increased MDC resulted in missed LLDs. All samples with MDCs affected by this issue are listed below. The samples with missed Zr-95 LLDs are shown in the table. All other required LLDs were met.-7-12 of 180 START Zr-95 CLIENT ID DATE END DATE MATRIX REQUIRED REVISED MDC pCi/L MDC pCi/L Z-16 03/07/12 03/28/12 Public water Z-02 03/28/12 06/27/12 Air particulate Z-16 06/06/12 06/27/12 Public water <15 <15.4 Z-14 07/05/12 07/25/12 Public water <15 <18.6 Z-16 09/05/12 09/26/12 Public water <15 <15.9 Z-01 09/26/12 01/02/13 Air particulate Z-02 09/26/12 01/02/13 Air particulate Z-14 12/05/12 12/26/12 Public water Z-15 12/05/12 12/26/12 Public water Z-18 12/05/12 12/26/12 Public water <15 <15.1 Z-16 12/15/12 12/26/12 Public water <15 <16.6 MW-ZN-06S 06/08/12 Groundwater MW-ZN-061 09/18/12 Groundwater MW-ZN-068 09/20/12 Groundwater MW-ZN-07S 10/02/12 Groundwater Table D-2 LISTING OF MISSED SAMPLES Sample Location Collection Reason Type Code Date There were no missed samples for 2012.Each program exception was reviewed to understand the causes of the program exception.

Sampling and maintenance errors were reviewed with the personnel involved to prevent recurrence.

Occasional equipment breakdowns and power outages were unavoidable.

The overall sample recovery rate indicates that the appropriate procedures and equipment are in place to assure reliable program implementation.

E. Program Changes There were no changes to the REMP program in 2012.-8-13 of 180 IV. Results and Discussion A. Aquatic Environment

1. Public Water Samples were taken weekly and composited monthly at four locations (Z-14, Z-15, Z-16 and Z-18). The following analyses were performed.

Gross Beta Samples from all locations were analyzed for concentrations of gross beta (Table C-1.1, Appendix C). Gross beta was detected in 36 of 48 samples. The values ranged from 1.7 pCi/I to 4.5 pCi/I.Concentrations detected were consistent with those detected in previous years (Figures C-1 and C-2, Appendix C).Tritium Quarterly composites of weekly collections were analyzed for tritium activity (Table C-1.2, Appendix C). No tritium was detected and the LLD was met (Figures C-3 and C-4, Appendix C).Gamma Spectrometry Samples from both locations were analyzed for gamma emitting nuclides (Table C-1.3, Appendix C). No nuclides were detected and all required LLDs were met.2. Fish Fish samples comprised of common carp, chinook salmon, lake trout, burbot and smallmouth bass were collected at two locations (Z-26 and Z-27) semiannually.

The following analysis was performed:

Gamma Spectrometry The edible portion of fish samples from both locations was analyzed for gamma emitting nuclides (Table C-11.1, Appendix C).No nuclides were detected and all required LLDs were met.-9-14 of 180

3. Sediment Aquatic sediment samples were collected at one location (Z-25)semiannually.

The following analysis was performed:

Gamma Spectrometry Sediment samples from Z-25 were analyzed for gamma emitting nuclides (Table C-111.1, Appendix C). No nuclides were detected and all required LLDs were met.B. Atmospheric Environment

1. Airborne a. Air Particulates Continuous air particulate samples were collected from three locations on a weekly basis. The three locations were within the ZNPS site boundary (Z-01, Z-02 and Z-03). The following analyses were performed:

Gross Beta Weekly samples were analyzed for concentrations of beta emitters (Table C-IV.1 and C-IV.2, Appendix C).Detectable gross beta activity was observed at all locations.

Comparison of results among the three groups aid in determining the effects, if any, resulting from the operation of ZNPS. The results from the On-Site locations ranged from 6 E-3 pCi/m 3 to 42 E-3 pCi/m 3 with a mean of 18 E-3 pCi/m 3.Comparison of the 2012 air particulate data with previous years data indicate no effects from the operation of ZNPS. Concentrations detected were consistent with those detected in previous years.Gamma Spectrometry Weekly samples were composited quarterly and analyzed for gamma emitting nuclides (Table C-IV.3, Appendix C).No nuclides were detected and all required LLDs were met.C. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Harshaw (CaF-10-15 of 180 and LiF) thermoluminescent dosimeters.

Thirty-six TLD locations were established around the site. Results of TLD measurements are listed in Tables C-V.1 to C-V.3, Appendix C.Most TLD measurements were below 25 mR/quarter, with a range of 16 mR/quarter to 45 mR/quarter.

D. Land Use Survey A Land Use Census conducted during August 2012 around the Zion Nuclear Power Station (ZNPS) was performed by Environmental Inc.(Midwest Labs) for ZS to comply with Chapter 3 of the Zion Offsite Dose Calculation Manual. The purpose of the survey was to document the nearest resident, milk producing animal and garden of greater than 500 ft in each of the sixteen 22 2 degree sectors around the site. It was identified in 2012 while reviewing the results of the land use census that only the nearest resident was being reviewed and no formal review for milk producing animal or garden of greater than 500 ft2 was being performed nor had they been performed since the year 2000. Exelon performed a justification for not performing these reviews in 2000. This does not meet the intent of NUREG-1301 or Chapter 3 of the ODCM.Zion Condition Report CR-2012-001362 was initiated to document this finding. The Annual Land Use Census needs to be performed during the growing season and Zion was unable to perform these reviews in 2012. A corrective action, CR-2012-001362-CA001, is tracking completion of the Land Use Census for 2013 to ensure compliance with the ODCM and meet the intent of NUREG-1 301. The scope of work for Environmental Inc. (Midwest Labs) was also changed to include the requirement to perform the review of milk producing animal and garden of greater than 500 ft2 for 2013 and future years in each of the sixteen 22 1/2 degree sectors around the site. The results of this survey are summarized below.-11 -16 of 180 Sector Residence Miles AN 2.5 B NNE -C NE D ENE EE F ESE GSE H SSE JS K SSW 1.9 L SW 1.1 M WSW 1.0 NW 1.1 P WNW 1.0 Q NW 1.0 R NNW 1.3 E. Errata Data Errata Data for Unmonitored Release/Release Potential 2010 -2011 CR-2013-000165 Identified a potential unmonitored release path upstream of both Unit 1 and Unit 2 vent stack radiation monitors via backflow into the Off-Gas system piping into the turbine building.

There were two identified paths in Unit 2 and one in Unit 1. During additional walk downs there was an additional path in Unit 1. Applicable valves were shut and a clearance order was generated which danger tagged shut the valves in Unit 2(see C0108065).

The two paths in Unit 1 had no associated valves, as a result, the lines were cut and capped removing them as a release path. (See WO 01614942).

Plant modifications were reviewed and it was determined that this condition existed prior to Zion Solutions licensing at Zion Station. The purpose of this erratum is to report the additional dose to a member of the public that was not included in the prior years of 2010 and 2011 due to this unmonitored path. All years prior to 2010 will be evaluated at a later date and any errata data identified will be included in the 2013 reports.Engineering determined the calculated the maximum flow through this potential release path to be 1.90E+02 cfm at the maximum designed vent flow of 1.50E+05 cfm. A Bounding ratio of 1.27E-03 of the ventilation flow was diverted to this unmonitored path and will be used in calculations for correcting dose impact to the public. This bounding flow rate is conservative as no flow was detected from these paths at a vent flow of approximately 8.OOE+04 cfm through physical observation. 17 of 180 Method used to calculate new values: 1 Took values reported for 2011: Only Qtr. 4 in Unit 1 had uncalculated dose contribution from Cs-1 37 and Co-60.a. Qtr. 4 Any organ infant liver 6.32e-04 mrem b. Qtr. 4 Total Body Adult TBody 2.26e-04 mrem 2. Determined total percent contribution of previously unaccounted for nuclides:

Sum the percentage of nuclide contributions. (GMILK) is Goat Milk (GPD) is Ground Plane Deposition.

a. Pathway (GMILK) Cs-137 + Co-60 = 1.71e+01%

+ 7.92e+01%

=9.63e+01%b. Pathway (GPD) Co-60 + Cs-137 = 4.86e+01%

+ 4.33e+01%

=9.19e+01%3. Determined dose contribution for unaccounted for nuclides per each pathway: Multiply Previously reported dose by total percent contribution of unaccounted for nuclides.a. Pathway (GMILK) 6.32e-04 mrem X 9.63e-01 = 6.09e-04 mrem b. Pathway (GPD) 2.26e-04 mrem X 9.19e-01 = 2.077e-04 mrem 4. Determined unaccounted for dose contribution:

Multiply pathway dose contribution by bounding ratio of 1.27e-03.a. Pathway (GMILK) 6.09e-04 mrem X 1.27e-03 = 7.73e-07 mrem b. Pathway (GPD) 2.077e-04 mrem X 1.27e-03 = 2.64e-07 mrem 5. Determined new total dose for the Quarter: Sum unaccounted for dose contribution to value previously reported.a. Qtr. 4 Any Organ Infant Liver 6.32e-04 mrem + 7.73e-04 mrem =6.33e-04 mrem b. Qtr. 4 Total Body Adult TBody 2.26e-04 mrem + 2.64e-07 mrem= 2.26e-04 mrem 6. Created chart showing new maximum % of Administrative and Technical Specification Limits and show % delta from previous year.-13-18 of 180 Unit 1 2010: Ventilation secured, there was no change in release.2011: Quarter 1-3 All releases accounted for.2011: Quarter4: Pathway: Grs/Goat/Milk (GMILK)previously new Qtr.reported dose add. dose Limit Qtr. Limit Organ dose (mrem) (mrem) (mrem) (mrem)4 Admin Any Organ infant liver 6.32E-04 7.73E-07 6.33E-04 5.63E+00 4 T. Spc. Any Organ infant liver 6.32E-04 7.73E-07 6.33E-04 7.50E+00 Pathway: Ground Plane Deposition (GPD)previously new Qtr.r Age reported dose add. dose Limit Qtr. Limit IGroup Organ 'dose (mrem) (mrem) (mrem) ,(mrem)4 Admin. Total Body 'Adult Tbody ' 2.26E-04 .2_.64E-07' 2.26E-04' 5.25E+001 F- ...... ....4T. Spc. Total Body Adult Tbody 2.26E-04 2.64E-07 2.26E-04 7.50E+001 Unit 2 2010: All releases accounted for.2011: All releases accounted for.Due to an incorrect setting on one of twelve gamma detectors, there was an incorrect MDC reported for samples analyzed on this detector.Teledyne Brown Engineering initiated Nonconformance 13-07 to investigate the issue and corrective actions have been implemented.

As a result, all MDCs for these samples have increased by 41.6%. The previously reported activities and uncertainties were not affected.

One public water sample at Location Z-18, collection date 12/01/11 through 12/28/11 was reprocessed using the correct calculation.

All required LLDs were met.-14-19 of 180 Public Water Location Z-18 (collected 12/01/11 -12/28/11)Nuclide MDC, original MDC, reprocessed Required result result LLD Mn-54 <5 <7 <15 Co-58 <6 <9 <15 Fe-59 <14 <20 <30 Co-60 <4 <6 <15 Zn-65 <8 <12 <30 Nb-95 <7 <10 <15 Zr-95 <10 <15 <15 Cs-134 <4 <6 <15 Cs-137 <5 <7 <18 Ba-1 40 <63 <89 NA La-1 40 <22 <31 NA F. Summary of Results -Inter-Laboratory Comparison Program The primary and secondary laboratories analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, vegetation and water matrices for (Appendix D). The PE samples, supplied by Analytics Inc., Environmental Resource Associates (ERA) and DOE's Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against the following pre-set acceptance criteria: 1. Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of laboratory results and Analytics' known value. Since flag values are not assigned by Analytics, TBE-ES evaluates the reported ratios based on internal QC requirements, which are based on the DOE MAPEP criteria.2. ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, National Environmental Laboratory Accreditation Conference (NELAC), state specific performance testing (PT) program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable.

The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.-15-20 of 180

3. DOE Evaluation Criteria MAPEP's evaluation report provides an acceptance range with associated flag values.The MAPEP defines three levels of performance:

Acceptable (flag = "A"), Acceptable with Warning (flag = "W"), and Not Acceptable (flag = "N"). Performance is considered acceptable when a mean result for the specified analyte is +/- 20% of the reference value. Performance is acceptable with warning when a mean result falls in the range from +/-20% to +/-30% of the reference value (i.e., 20% < bias < 30%). If the bias is greater than 30%, the results are deemed not acceptable.

For the TBE laboratory, 12 out of 18 analytes met the specified acceptance criteria.

Six analytes (Co-60, Gross Alpha, Gross Beta, Sr-89, Sr-90 and Zn-65) did not meet the specified acceptance criteria for the following reason: 1. Teledyne Brown Engineering's MAPEP March 2012 Co-60 in soil result of 7.61 Bq/kg was higher than the known value of 1.56 Bq/kg, resulting in a found to known ratio of 4.88 on a sensitivity evaluation.

NCR 12-08 was initiated to investigate this failure. No cause could be found for the failure. TBE is monitoring the Co-60 in soil analyses on a case-to-case basis. Sensitivity evaluations are primarily a qualitative assessment.

Since Cobalt-60 was not observed in any Radiological Environmental Monitoring Program (REMP) samples, there was no impact to client samples as a result of this issue.2. Teledyne Brown Engineering's MAPEP March 2012 Zn-65 in AP result of 4.19 Bq/sample was higher than the known value of 2.99 Bq/sample, exceeding the upper control limit of 3.89 Bq/sample.

NCR 12-08 was initiated to investigate this failure. No cause could be found for the failure and is considered an anomaly specific to the MAPEP sample. The first and second quarter 2012 Analytics AP Zn-65 analyses were acceptable.

Since Zn-65 was not present in any REMP samples, there was no impact to client samples as a result of this issue.3. Teledyne Brown Engineering's MAPEP September 2012 Sr-90 in water result of 19.6 pCi/L was higher than the known value of 12.2 pCi/L, exceeding the upper control limit of 15.9 pCi/L. NCR 12-11 was initiated to investigate this failure. An incorrect aliquot was-16-21 of 180 entered into LIMS. Using the correct aliquot, the result would have fallen within the acceptance range. The failure was specific to the sample, therefore there was no impact to client samples as a result of this issue.4. Teledyne Brown Engineering's ERA May 2012 Gross Alpha in water result of 82.4 pCi/L was higher than the known value of 62.9 pCi/L, which exceeded the upper control limit of 78.0 pCi/L. NCR 12-05 was initiated to investigate this failure. The G-1 detector is slightly biased high for Th-230 based measurements.

The G-1 detector is used only for ERA samples. The detector was recalibrated.

The failure was specific to the ERA sample, therefore there was no impact to client samples as a result of this issue.5. Teledyne Brown Engineering's ERA November 2012 Gross Beta in water result of 59.3 pCi/L was higher than the known value of 39.2 pCi/L, which exceeded the upper control limit of 46.7 pCi/L. NCR 12-13 was initiated to investigate this failure. The rerun result of 44.8 fell within the control limits. It appears an incorrect aliquot was entered into LIMS. The failure was specific to the ERA sample, therefore there was no impact to client samples as a result of this issue.6. Teledyne Brown Engineering's ERA November 2012 Sr-89 in water result of 46.5 pCi/L was higher than the known value of 39.1 pCi/L, which exceeded the upper control limit of 46.1 pCi/L. NCR 12-13 was initiated to investigate this failure. The found to known ratio was 1.19, which TBE considers acceptable with warning, therefore there was no impact to client samples as a result of this issue.For the EIML laboratory, 12 out of 14 analytes met the specified acceptance criteria.

Two analytes (Gross Beta and Co-57) did not meet the specified acceptance criteria for the following reason: 1. Environmental Inc., Midwest Laboratory's ERA April 2012 Gross Beta in water result of 76.2 pCi/L was higher than the known value of 44.2 pCi/L, exceeding the upper control limit of 51.5 pCi/L. The rerun result of 38.3 fell within the control limits. A sample dilution problem is suspected.

The failure was specific to the ERA sample, therefore there was no impact to client samples as a result of this issue.2. Environmental Inc., Midwest Laboratory's MAPEP August 2012 Co-57 in vegetation result of 7.44 pCi/L was higher than the known value of 5.66 pCi/L, exceeding the upper control limit of 7.36 pCi/L.-17-22 of 180 The recount result of 6.74 fell within the control limits. The sample was recounted using a geometry more closely matched to the MAPEP sample size. The failure was specific to the MAPEP sample, therefore there was no impact to client samples as a result of this issue.The Inter-Laboratory Comparison Program provides evidence of "in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.-18-23 of 180 APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

24 of 180 TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION. 2012 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 2012 Location of Facility:

ZION IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH RIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS PUBLIC WATER (PCI/LITER)

GR-B H-3 48 16 48 GAMMA MN-54 4 2.5 (26/36)(1.8/4.5)200 <LLD 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 2.5 (10/12)(1.7/3.6)2.7 (9/12)(2.0/4.5)Z-14 INDICATOR KENOSHA WATER WORKS 10.0 MILES N OF SITE<LLD 0 0<LLD<LLD 0 0 CO-58 FE-59<LLD 0 CO-60 ZN-65<LLD<LLD 0 0 00 00* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2012 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 2012 Location of Facility:

ZION IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS PUBLIC WATER (PCI/LITER)

NB-95 ZR-95 t" CS- 134 CS-137 BA-140 LA- 140 GAMMA MN-54 15 <LLD 15 <LLD 15 <LLD 18 <LLD NA <LLD NA <LLD 130 <LLD<LLD<LLD 0<LLD<LLD<LLD<LLD 0 0 0 0 0 t')ON 0 00 C FISH (PCI/KG WET)8 NA 0* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2012 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 2012 Location of Facility:

ZION IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FISH (PCI/KG WET)CO-58 FE-59)CO-60 ZN-65 NB-95 ZR-95 CS- 134 CS-137 130 <LLD 260 <LLD 130 <LLD 260 <LLD NA <LLD NA <LLD 100 <LLD 100 <LLD NA NA NA NA NA NA NA NA 0 0 0 0 0 0 0 00-00 0 0* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2012 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 2012 Location of Facility:

ZION IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FISH (PCI/KG WET)SEDIMENT (PCI/KG DRY)BA- 140 LA- 140 GAMMA MN-54 2 NA <LLD NA <LLD NA <LLD NA <LLD NA <LLD NA <LLD NA <LLD NA NA 0 0 CO-58 FE-59 CO-60 ZN-65 NA NA NA NA NA 0 0 0 0 tO 00 00 0* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2012 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 2012 Location of Facility:

ZION IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SEDIMENT (PCI/KG DRY)NB-95 ZR-95 CS-134 CS-137 BA- 140 LA-140 NA <LLD NA <LLD 150 <LLD 180 <LLD NA <LLD NA <LLD 10 18 (157/159)(6/42)NA NA NA NA 0 0 0 0 0 0 0 NA NA 00 00 0'AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 159 NA 19 (52/53)(7/42)Z-01 INDICATOR ONSITE I 0.3 MILES S OF SITE* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2012 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 2012 Location of Facility:

ZION IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCI/CU.METER)

GAMMA MN-54 12 CO-58 FE-59 CO-60 NA <LLD NA <LLD NA <LLD NA <LLD NA <LLD NA <LLD NA <LLD NA NA NA NA 0 0 0 0 ZN-65 NB-95 ZR-95 NA NA NA 0 0 0 00 C0 00 0-'* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2012 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 2012 Location of Facility:

ZION IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCI/CU.METER)

CS-134 CS-137 BA-140 LA- 140 10 <LLD 10 <LLD NA <LLD NA <LLD NA NA NA NA 0 0 0 0 DIRECT RADIATION (MILLI-ROENTGEN/QTR.)

TLD-QUARTERLY 144 NA 20.6 (144/144)(16/45)NA 27 (4/4)(18/44)Z-108-1 INDICATOR 0.1 MILES SSE C-0 0o* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION

& ANALYTICAL METHODS 32 of 180 TABLE B-1: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2012 Location Location Description Distance & Direction From Site A. Public Water Z-14 Z-15 Z-16 Z-18 Kenosha Water Works (control)Lake County Water Works (indicator)

Waukegan Water Works (indicator)

Lake Forest Water Works (control)B. Air Particulates Z-01 Z-02 Z-03 C. Fish Z-26 Z-27 Onsite 1 (indicator)

Onsite 2 (indicator)

Onsite 3 (indicator)

Lake Michigan Nearsite (indicator)

Lake Michigan Farsite (indicator)

Lake Michigan, Illinois Beach State Park (indicator) 10.0 miles N 1.4 miles NNW 6.1 miles S 12.9 miles S 0.3 miles S 0.2 miles W 0.2 miles NNW At station 10.1 miles N D. Sediment Z-25 0.2 miles S E. Environmental Dosimetry

-TLD Inner Ring Z-101-1 and -2 Z-102-1 and-2 Z-103-1 and-2 Z-104-1 and-2 Z-105-1 and -2 Z-106-1 and -2 Z-107-1 and -2 Z-108-1 and -2 Z-110-1 and -2 Z-111-1 and -2 Z-112-1 and-2 Z-113-1 and -2 Z-114-1 and -2 Z-115-1 and -2 Z-301-1 and -2 0.2 miles N 0.2 miles NNE 0.2 miles NE 0.1 miles ENE 0.1 miles E 0.1 miles ESE 0.1 miles SE 0.1 miles SSE 0.2 miles SSW 0.3 miles SW 0.7 miles WSW 0.6 miles W 0.6 miles WNW 0.4 miles NW 0.5 miles NW 0.3 miles S 0.2 miles W 0.2 miles NNW Other Z-01-1 and -2 Z-02-1 and -2 Z-03-1 and -2 Onsite 1 (indicator)

Onsite 2 (indicator)

Onsite 3 (indicator) 33 of 180 B-I TABLE B-2: Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2012 Sample Analysis Sampling Method Analytical Procedure Number Medium Public Gamma Monthly composite from TBE, TBE-2007 Gamma emitting radioisotope Water Spectroscopy weekly grab samples. analysis Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Public Gross Beta Monthly composite from TBE, TBE-2008 Gross Alpha and/or gross beta Water weekly grab samples. activity in various matrices Env. Inc., W(DS)-01 Determination of gross alpha and/or gross beta in water (dissolved solids or total residue)Public Tritium Quarterly composite from TBE, TBE-2011 Tritium analysis in drinking water by Water weekly grab samples. liquid scintillation Env. Inc., T-02 Determination of tritium in water (direct method)Fish Gamma Semi-annual samples TBE-2007 Gamma emitting radioisotope analysis Spectroscopy collected via electroshocking or other techniques Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Sediment Gamma Semi-annual grab samples TBE, TBE-2007 Gamma emitting radioisotope Spectroscopy analysis Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Air Gross Beta One-week composite of TBE, TBE-2008 Gross Alpha and/or gross beta Particulates continuous air sampling activity in various matrices through glass fiber filter paper Env. Inc., AP-02 Determination of gross alpha and/or gross beta in air particulate filters Air Gamma Quarterly composite of each TBE, TBE-2007 Gamma emitting radioisotope Particulates Spectroscopy station analysis Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy TLD Thermoluminescence Quarterly TLDs comprised of Mirion Technologies Dosimetry two CaF 200 and two LiF 100 LiF 4-chip Harshaw elements.34 of 180 B-2

  • RLD Moal0to Loan A Air Saminig LoMu hair Hmi TLJD -d rFind " S=uM M1I OnsloNoý I Scuabuik oagk No. 2 WstaUid U Ond M 3 Norwtidc Figure B-1 Inner Ring TLD Locations and Fixed Air Samplers of the Zion Nuclear Power Station, 2012 B-3 35 of 180

!Q: 9Wr mi d ZýF,14 Kmasdi WatwWalk&1-15 11Ce-wicy

%amn %mbt F-i6 Wgjgggi WOW Waft&1.8 Lte AN tWa Wi t25isawheM&

9 Pik-ýW27 LUhvWgmizwP iLD a 14 (Cp Figure B-2 Fish, Water and Sediment Locations of the Zion Nuclear Power Station, 2012 B-4 36 of 180 APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY 37 of 180 TABLE C-1.1 CONCENTRATIONS OF GROSS BETA IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION PERIOD Z-14 Z-15 Z-16 Z-18 01/04/12 02/01/12 03/07/12 04/04/12 05/02/12 06/06/12 07/05/12 08/01/12 09/05/12 10/03/12 11/01/12 12/05/12 MEAN*-01/25/12-02/29/12-03/28/12-04/04/12-05/30/12-06/27/12-07/25/12-08/29/12-09/26/12-10/24/12-11/28/12-12/26/12<2.3 4.5 +/- 1.8 2.9 +/- 1.1 2.1 +/- 1.0 2.1 +/- 1.0 2.0 +/- 1.1<1.6 2.5 +/- 1.0*2.1 3.3 +/- 1.1 2.8 +/- 1.1 2.0 +/- 1.0* 2.2* 2.6 3.9 +/-2.7 +/-2.6 +/-* 1.7* 1.6 2.7 +/-2.3 +/-2.3 +/-2.1 +/-1.8 +/-1.1 1.0 1.0 1.1 1.4 1.1 1.1 1.0* 2.2* 2.7 3.0 2.1 2.2 2.6 2.1 2.6* 2.2 2.2 1.9 2.0+/-+/-+/-+/-+/-+/-+/-+/-+/-1.1 1.0 1.0 1.1 1.1 1.0 1.1 1.1 1.1 2.4 +/-1.5<2.7 2.2 +/-1.1 1.8 +/-1.1 2.1 +/-1.0 3.6 +/-1.2 2.7 +/-1.2 2.8 +/-1.1*2.2 3.4 +/-1.1 2.4 +/-1.1 1.7 +/-1.0 2.5 +/-1.3 2.7 +/- 1.7 2.6 +/- 1.3 2.3 +/- 0.7 TABLE C-I.2 CONCENTRATIONS OF TRITIUM IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION PERIOD Z-14 Z-15 Z-16 Z-18 01/04/12 04/04/12 07/05/12 10/03/12-03/28/12-06/27/12-09/26/12-12/26/12* 166* 151* 162* 173 164 149 159 180 168 184 159 182 163 148 159 181 MEAN THE MEAN AND 2 STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-I 38 of 180 TABLE C-1.3 CONCENTRATIONS OF GAMMMA EMITTERS IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION PERIOD Z-14 01/04/12 -01/25/02/01/12 -02/29/03/07/12 -03/28/04/04/12 -04/04/05/02/12 -05/30/06/06/12 -06/27/07/05/12 -07/25/08/01/12 -08/29/09/05/12 -09/26/10/03/12 -10/24/11/01/12 -11/28/12/05/12 -12/26/Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 12 12 112 12 12'12'12'12 12 12/12'12 (1)t'Q MEAN<6<4<5<4<8<4<5<4<7<4<5<5<5<5<4<5<6<4<6<4<6<5<5<5 6 5 3 5 8 5 5 5 9 4 5 5< 16<9<8< 13< 21< 13< 10< 10<15< 10< 12< 16< 14<13<9< 16< 14*13< 14< 14* 12< 15< 14< 11<6<4<6<4<5<5<5<3<6<4<5<6<5<5<4<5<7<3<5<4<6<5<5<4<9<8<11<8< 18< 10<9<9< 16<7<8< 13< 12< 11<8< 10* 14< 10<11<11< 13<11<11< 11<8<5<5<5<8<6<6<5<9<6<5<7<7<6<5<7<7<6<6<6<6<8<5<5<10<8<6* 10*13<9< 13<9<11<8<7<9<10<7<8< 14< 14< 10< 10< 10*15< 12<8<9<5<4<5<4<7<4<5<3<6<4<4<5<5<4<4<6<6<4<6<5<5<4<4<4<5<4<6<4<7<4<5<4<6<3<4<5<5<5<5<5<9<4<6<5<6<6<5<5< 64< 41* 22< 102< 67* 72* 36< 53< 90* 78< 29< 39< 61* 51< 22* 139< 63< 59< 52< 74< 96< 107< 37* 36< 20< 12<7< 29< 20<18*15< 21< 24< 23<7< 16< 16< 16<8< 45< 18*19< 18< 18< 22< 31< 10< 13 Z-15 01/04/12 02/01/12 03/07/12 04/04/12 05/02/12 06/06/12 07/05/12 08/01/12 09/05/12 10/03/12 11/01/12 12/05/12 MEAN 01/25/12 02/29/12 03/28/12 04/04/12 05/30/12 06/27/12 07/25/12 08/29/12 09/26/12 10/24/12 11/28/12 12/26/12<6<5<4<6<8<5<6<5<7<6<5<6 a TABLE C-1.3 CONCENTRATIONS OF GAMMMA EMITTERS IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-16 01/04/12 02/01/12 03/07/12 04/04/12 05/02/12 06/06/12 07/05/12 08/01/12 09/05/12 10/03/12 11/01/12 12/05/12 MEAN-01/25/12-02/29/12-03/28/12-04/04/12-05/30/12-06/27/12-07/25/12-08/29/12-09/26/12-10/24/12-11/28/12-12/26/12-01/25/12-02/29/12-03/28/12-04/04/12-05/30/12-06/27/12-07/25/12-08/29/12-09/26/12-10/24/12-11/28/12-12/26/12<5<3<5<5<7<5<5<4<4<4<5<6<4<5<5<6<6<4<6<5<6<4<5<6<6<5<5<6<8<5<6<5<6<5<5<6<4<6<5<7<6<6<6<6<6<5<6<5< 14< 12< 11< 15< 20< 15* 12<11< 15<11<10< 14< 11< 11< 11< 21< 10< 13< 12<15< 16< 11<10< 12<5<4<4<6<.6<5<6<4<5<5<5<5<5<5<5<6<4<5<5<5<6<3<6<6<11< 10<8<9< 12* 12<8<8<9<9<8< 11<6< 11<7< 14<9<9<11< 10<11<8< 11< 11<7<5<5<6<7<5<7<6<6<7<5<7<6<6<5<8<5<6<6<7<6<6<6<5< 11<8<9<11< 12< 11<10<9< 11< 10<8< 12< 10< 11<8< 14<8< 13< 12< 12< 15<7<9<11<5<4<5<4<5<5<5<4<5<4<4<4<4<5<4<5<5<4<6<5<5<4<4<5<5<4<5<5<6<4<5<5<5<4<5<5<5<5<6<6<4<4<7<5<6<4<5<5< 58< 38< 24* 98< 39* 66< 48* 62< 82< 79* 31< 45< 48* 46* 25< 134* 50< 75* 51< 68* 106* 85< 33< 50< 21< 14-<7< 26< 21< 22< 16* 20< 31< 21< 10* 20* 17< 17<7* 42*19< 23*13< 24< 30< 22< 11< 16 Z-18 01/04/12 02/01/12 03/07/12 04/04/12 05/02/12 06/06/12 07/05/12 08/01/12 09/05/12 10/03/12 11/01/12 12/05/12 MEAN 0 0-00 0O TABLE C-I1.1 CONCENTRATIONS OF GAMMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-26 Common Carp Smallmouth Bass Chinook Salmon Common Carp 05/24/12 05/24/12 10/22/12 10/22/12< 39< 55< 38< 44< 37< 53< 38< 51< 86< 108< 67* 100< 41< 57< 40* 50< 90< 94< 80* 108< 35< 69< 47* 65< 59* 110< 71* 70< 32< 51< 36< 53< 28< 59< 50* 58* 366< 502< 320* 415* 100< 158< 72< 135 MEAN Z-27 Lake Trout Burbot) Lake Trout Burbot 05/15/12 05/15/12 10/18/12 10/18/12< 59< 47< 44< 49< 62< 53< 47< 43< 195* 96< 95* 118< 58< 44< 53< 43< 148* 69< 64* 100< 74* 56< 56* 61< 140* 85< 93* 98< 48< 42< 40< 43< 73< 62< 67* 46< 947< 837* 446< 452* 368< 166* 137< 139 MEAN 0--0 O0 TABLE C-I11.1 SITE COLLECTION PERIOD Z-25 05/09/12 10/17/12 MEAN CONCENTRATIONS OF GAMMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMA Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-1 34< 42 < 39 < 89 < 36 < 92 < 43 < 70 < 39< 23 < 29 < 67 < 34 < 59 < 33 <48 < 28 <Cs-137 48 30 Ba-140* 210* 173 La-140* 58* 51 C-)LI, k)C 00 0 TABLE C-IV.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION PERIOD U 12/28/11 01/04/12 01/11/12 01/18/12 01/25/12 02/01/12 02/09/12 02/15/12 02/22/12 02/29/12 03/07/12 03/14/12 03/21/12 03/28/12 04/04/12 04/11/12 04/18/12 04/25/12 05/02/12 05/09/12 05/16/12 05/23/12 05/30/12 06/06/12 06/13/12 06/20/12 06/27/12 07/05/12 07/11/12 07/18/12 07/25/12 08/01/12 08/08/12 08/15/12 08/22/12 08/29/12 09/05/12 09/12/12 09/19/12 09/26/12 10/03/12 10/10/12 10/17/12 10/24/12 11/01/12 11/08/12 11/14/12 11/21/12 11/28/12 12/05/12 12/12/12 12/19/12 12/26/12 01/04/12 01/11/12 01/18/12 01/25/12 02/01/12 02/09/12 02/15/12 02/22/12 02/29/12 03/07/12 03/14/12 03/21/12 03/28/12 04/04/12 04/11/12 04/18/12 04/25/12 05/02/12 05/09/12 05/16/12 05/23/12 05/30/12 06/06/12 06/13/12 06/20/12 06/27/12 07/05/12 07/11/12 07/18/12 07/25/12 08/01/12 08/08/12 08/15/12 08/22/12 08/29/12 09/05/12 09/12/12 09/19/12 09/26/12 10/03/12 10/10/12 10/17/12 10/24/12 11/01/12 11/08/12 11/14/12 11/21/12 11/28/12 12/05/12 12/12/12 < 4 12/19/12 12/26/12 01/02/13 Z-01 25 +/- 5 22 +/- 5 23 +/- 5 21 +/- 5 23 +/- 5 18 +/- 4 13 +/- 4 21 +/- 4 23 +/- 5 14 +/- 4 19 +/- 4 19 +/- 5 17 +/- 4 8+/-4 12 4 18 4 14 4 18 5 12 4 10 5 15 4 15 4 7+/-4 10 4 18 4 9+/-3 26 +/-4 15 5 21 +4 20 +4 14 t 4 24 +/- 4 14 +/- 4 11 4 29 5 21 +/-4 18 4 24 +4 16 5 20 +4 17 4 16 4 19 4 13 4 21 +5 26 +/-5 42 +5 34 +/- 5 27 +/- 6 GROUP I Z-02 17 4 21 +5 20 +4 18 4 19 4 17 4 10 4 20 +/-4 21 +5 17 4 16 4 15 4 13 4 10 4 13+/- 4 11 +/-4 10 5 16+/- 4 7+/-3 8+/-4 12+/- 4 15+/- 4 6+/-4 15+/- 4 18 4 13 4 24 +/-4 11 5 13 4 14 +/- 4 10 +/- 4 20 +/- 4 12 +/- 4 15 +/- 4 19 +/- 4 18 +/- 4 17 +/- 4 17 +/- 4 15 +/- 4 14 +/- 4 21 +/- 4 19 +/- 4 21 +/- 4 16 +/- 4 22 +/-5 22 +5 41 +/-5 32 +/-5 25 +6 17 4 31 +/-5 27+/- 5 36 +6 Z-03 20 +/-4 27 5 23 +/-4 23+/- 5 18+/- 4 16 4 15+/- 4 21 +/-4 19+/- 5 19 4 14+/- 4 16 4 11 4 7+/-4 12+/- 4 17+/- 4 8+/-4 20+/- 5 9+/-3 10+/- 5 8+/-4 10+/- 4<6 39 26 32+/-5+/-5+/-5 MEAN 19 +/- 15 17 +/- 14 18 +/- 14* THE MEAN AND 2 STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-6 43 of 180 TABLE C-IV.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP I -ONSITE LOCATIONS COLLECTION PERIOD MIN MAX MEAN +/-2SD U1/U4/12 02/01/12 02/29/12 03/28/12 05/02/12 05/30/12 06/27/12 08/01/12 08/29/12 10/03/12 11/01/12 12/28/11 I U2/U1/12 02/29/12 03/28/12 05/02/12 05/30/12 06/27/12 08/01/12 08/29/12 10/03/12 11/01/12 11/28/12 01/02/13 10 11 7 7 6 9 11 10 13 21 17 27 23 19 20 15 18 26 31 24 21 42 39 21 +/- +18 +/- 7 16 +/- 5 13 +/- 8 11 6 12 8 17 + 10 19 + 13 17 6 17 5 30 +/- 16 26 +/- 13 12/28/11 -01/02/13 6 42 18 +/- 14 C-7 44 of 180 TABLE C-IV.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 SITE COLLECTION PERIOD Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-01 12/28/11 03/28/12 06/27/12 09/26/12 MEAN Z-02 12/28/11 03/28/12 06/27/12 09/26/12-03/28/12-06/27/12-09/26/12-01/02/13-03/28/12-06/27/12-09/26/12-01/02/13-03/28/12-06/27/12-09/26/12-01/02/13<3<3<3<3<3<3<3<3<4<3<4<3<4<5<4<3<8< 11< 10<7< 11<8< 15<6<3<3<3<3<4<3<3<2<7<9<7<6<7<7<9<5<4<4<5<3<3< 4<5<3<6<6<7<6<8<5< 11<5<3<4< 3<2<3<3<4<2<2<3<2<2<3<3<3<2<4<2<3<2<2<2<2<1 MEAN< 76< 60< 200< 29< 42< 61< 134< 21< 53 < 8< 57 < 24< 110 < 64< 33 < 14< 24< 32< 73<8< 16< 16< 32<7 C-)Z-03 12/28/11 03/28/12 06/27/12 09/26/12<2 <3 <4 <1 <5 <2 <5<3 <3 <9 <3 <6 <3 <6<3 <3 <9 <2 <5 <3 <6<1 <2 <4 <2 <4 <2 <3 MEAN (-I 0 00 TABLE C-V.1 QUARTERLY TLD RESULTS FOR ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER

+/- 2 STANDARD DEVIATIONS STATION CODE MEAN+ 2 S.D.JAN -MAR APR -JUN JUL -SEP OCT-DEC.~u..J +/- 3.4 Z-01-1 Z-01-2 Z-02-1 Z-02-2 Z-03-1 Z-03-2 Z-1 01-1 Z-101-2 Z-1 02-1 Z-1 02-2 Z-103-1 Z-1 03-2 Z-104-1 Z-1 04-2 Z-1 05-1 Z-1 05-2 Z-1 06-1 Z-1 06-2 Z-1 07-1 Z-1 07-2 Z-1 08-1 Z-1 08-2 Z-110-1 Z-110-2 Z-111-1 Z-111-2 Z-112-1 Z-112-2 Z-113-1 Z-1 13-2 Z-1 14-1 Z-1 14-2 Z-115-1 Z-115-2 Z-301-1 Z-301-2 20.3 +3.4 20.8 + 2.5 19.0 + 3.3 18.8 + 1.9 20.0 + 1.6 20.8 +/- 6.2 18.5 + 3.5 20.5 + 3.8 21.8 + 6.2 21.0 + 4.3 19.5 + 3.5 20.0 +/- 3.3 20.5 + 5.3 20.8 + 7.7 20.3 + 4.7 19.8 + 4.1 19.3 +/- 6.0 20.0 +/- 3.7 21.5 + 5.0 20.5 + 6.2 27.0 + 23.2 26.8 + 24.8 20.5 + 2.0 20.5 + 2.6 19.3 + 4.1 19.0 +/- 3.3 20.5 + 2.6 21.0 + 2.8 19.3 + 3.4 19.3 + 3.4 20.8 + 6.0 21.0 + 1.6 20.5 + 4.2 21.8 + 4.1 20.0 + 2.8 21.5 + 1.2 20 21 19 18 20 21 19 21 22 22 21 20 24 25 22 22 20 21 22 24 22 20 20 21 19 19 21 21 20 20 20 21 21 24 21 21 18 19 17 18 19 18 16 23 20 18 17 18 18 17 17 17 16 18 18 17 18 18 20 19 17 17 19 19 17 17 18 20 18 19 18 22 21 21 19 19 20 19 19 19 19 21 20 20 19 18 20 20 18 19 24 19 24 24 20 20 19 19 20 22 19 19 20 21 20 22 20 21 C-9 46 of 180 TABLE C-V.2 MEAN QUARTERLY TLD RESULTS FOR INNER RING AND OTHER LOCATIONS FOR ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER STANDARD DEVIATIONS OF THE STATION DATA COLLECTION PERIOD INNER RING+/- 2 S.D.OTHER JAN-MAR APR-JUN JUL-SEP OCT-DEC 21.2 +/- 3.0 18.2 +/- 3.2 20.2 +/- 3.2 23.4 +/- 11.8 19.8 +/- 2.3 18.2 +/- 1.5 19.8 +/- 2.0 21.8 +/- 3.4 TABLE C-V.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER LOCATION SAMPLES ANALYZED PERIOD PERIOD PERIOD MEAN MINIMUM MAXIMUM +/- 2 S.D.INNER RING OTHER 120 24 16 17 45 25 20.7 +/- 7.4 19.9 + 3.5 INNER RING STATIONS -Z-101-1, Z-101-2, Z-102-1, Z-102-2, Z-103-1, Z-103-2, Z-104-1, Z-104-2, Z-105-1, Z-105-2, Z-106-1, Z-106-2, Z-107-1, Z-107-2, Z-108-1, Z-108-2, Z-110-1, Z-110-2, Z-111-1, Z-111-2, Z-112-1, Z-112-2, Z-113-1, Z-113-2, Z-114-1, Z-114-2, Z-115-1, Z-115-2, Z-301-1, Z-301-2 OTHER STATIONS -Z-01 -1, Z-01 -2, Z-02-1, Z-02-2, Z-03-1, Z-03-2 C-IO 47 of 180 FIGURE C-1 PUBLIC WATER -GROSS BETA -STATIONS Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2012 Z-14 (C) Kenosha Water Works 5.0 4.0 3.0 2.0 1.0~1 C-, a.0.0 I 01-26-00 08-27-02 03-28-05 10-28-07 05-29-10 12-28-12 Z-1 5 Lake County Water Works 7.0 6.0 5.0 4.0 3.0 2.0 1.0-J a.0.0 I 26-00 08-27-02 03-28-05 10-28-07 05-29-10 12-28-12 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 c- 1 48 of 180 FIGURE C-2 PUBLIC WATER -GROSS BETA -STATIONS Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2012 Z-16 Waukegan Water Works-J (.)10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 01-26-00 08-27-02 03-28-05 10-28-07 05-29-10 12-28-12 Z-18 (C) Lake Forest Water Works C)10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 01-26-00 08-27-02 03-28-05 10-28-07 05-29-10 12-28-12 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-12 49 of 180 FIGURE C-3 PUBLIC WATER -TRITIUM -STATION Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2012 Z-14 (C) Kenosha Water Works 300 200 C.100 0 1 01-01-00 08-07-02 03-13-05 10-18-07 05-24-10 12-28-12 Z-15 Lake County Water Works 300 250 200 150 100 50-J 0.0 I 03-29-00 10-17-02 05-06-05 11-24-07 06-13-10 12-31-12 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-1 3 50 of 180 FIGURE C-4 PUBLIC WATER -TRITIUM -STATION Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2012 Z-16 Waukegan Water Works 250 200 150 100 CJ a.50 0 29-00 10-17-02 05-06-05 11-24-07 06-13-10 12-31-12 Z-18 (C) Lake Forest Water Works 250 200 150 100--a.50 01 v 03-29-00 10-17-02 05-06-05 11-24-07 06-13-10 12-31-12 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-14 51 of 180 FIGURE C-5 AIR PARTICULATES

-GROSS BETA -STATIONS Z-01 AND Z-02 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2012 Z-01 Onsite No. 1, Southside 60.0 50.0 40.0 CL 30.0 o')20.0 10.0 0.0 -I-01-05-00 08-11-02 03-17-05 10-22-07 05-28-10 01-01-13 Z-02 Onsite No. 2, Westside m E 0.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 05-00 08-11-02 03-17-05 10-22-07 05-28-10 01-01-13 52 of 180 C-15 FIGURE C-6 AIR PARTICULATES

-GROSS BETA -STATIONS Z-03 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2012 Z-03 Onsite No. 3, Northside C.)m.9 w~0D 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 01-05-00 08-11-02 03-17-05 10-22-07 05-28-10 01-01-13 53 of 180 C- 16 APPENDIX D INTER-LABORATORY COMPARISON PROGRAM 54 of 180 TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 1 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)March 2012 E10066 E10067 E10069 E10068 Milk Milk Sr-89 Sr-90 1-131 Ce-1 41 Cr-51 Cs-1 34 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L 101 94.8 pCi/L 11.7 13.5 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 87.5 247 435 133 156 127 190 179 327 274 167 310 107 109 87.6 133 113 226 185 92.5 260 436 149 159 132 195 168 333 279 164 276 94.5 101 83.5 123 106 210 176 AP Ce-141 Cr-51 Cs-1 34 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Charcoal 1-131 Water Fe-55 June 2012 E10070 E10198 E10199 E10201 E10200 pCi 92.8 94.2 pCi/L 1800 1570 pCi/L 86.1 99.8 pCi/L 9.2 12.7 1.07 0.87 0.95 0.95 1.00 0.89 0.98 0.96 0.97 1.07 0.98 0.98 1.02 1.12 1.13 1.08 1.05 1.08 1.07 1.08 1.05 0.99 1.15 0.86 0.72 0.89 0.89 0.98 0.91 0.97 0.97 0.98 1.01 0.97 0.96 0.97 1.00 1.04 1.06 1.01 0.98 1.07 0.99 1.04 1.05 A A A A A A A A A A A A A A A A A A A A A A A A W Milk Milk Sr-89 Sr-90 1-131 Ce-1 41 Cr-51 Cs-1 34 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 88.9 72.8 394 159 206 89.5 129 129 193 342 73.2 367 165 205 84.7 118 125 181 338 99.7 82.2 402 174 212 92.3 132 128 199 355 75.1 366 159 193 84.2 121 117 182 324 A A A A A A A A A A A A A A A A A A A A AP Ce-141 Cr-51 Cs-1 34 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Charcoal 1-131 pCi 101 96.6 55 of 180 D-I TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 2 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value(a) Value (b) TBE/Analytics Evaluation (d)June 2012 E10202 Water Fe-55 pCi/L 1890 1580 pCi/L 106 99.6 pCi/L 13.6 16.0 September2012 E10296 E10297 E10299 E10298 Milk Milk Sr-89 Sr-90 1-131 Ce-1 41 Cr-51 Cs-1 34 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 89.8 160 230 101 174 97.2 188 159 195 155 145 219 94.1 140 88.3 173 136 165 133 99.6 164 248 108 174 100 196 152 192 152 135 205 89.4 144 83.0 162 125 159 125 AP Ce-141 Cr-51 Cs-1 34 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Charcoal 1-131 Water Fe-55 E10300 pCi 95.5 97.2 pCi/L 1630 1900 pCi/L 101 96.6 pCi/L 11.3 13.8 1.20 1.06 0.85 0.90 0.98 0.93 0.94 1.00 0.97 0.96 1.05 1.02 1.02 1.07 1.07 1.05 0.97 1.06 1.07 1.09 1.04 1.06 0.98 0.86 1.05 0.82 1.03 1.03 1.07 0.95 0.97 0.96 1.00 1.07 1.02 1.01 1.04 1.10 1.02 0.99 1.01 1.05 0.94 0.92 1.08 A A A December 2012 E10334 E10335 E10337A Milk Milk Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 93.1 52.5 373 157 113 94.1 116 124 190 172 51.8 372 165 113 96.5 118 105 166 179 90.0 51.0 348 165 117 98.5 116 116 186 170 49.6 338 161 114 95.8 112 112 181 165 A A A A A A A A A A A A A A A A A A A A A 56 of 180 AP Ce-141 Cr-51 Cs-1 34 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 D-2 TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 3 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)December 2012 E10336 E10333 Charcoal 1-131 Water Fe-55 pCi 73.1 72.7 pCi/L 1550 1750 1.01 0.89 A A (a) Teledyne Brown Engineering reported result.(b) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.(c) Ratio of Teledyne Brown Engineering to Analytics results.(d) Analytics evaluation based on TBE internal QC limits: A= Acceptable.

Reported result falls within ratio limits of 0.80-1.20.

W-Acceptable with warning. Reported result falls within 0. 70-0.80 or 1.20-1.30.

N = Not Acceptable.

Reported result falls outside the ratio limits of < 0. 70 and > 1.30.57 of 180 D-3 TABLE D-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 1 OF 1)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Limits Evaluation (c)May 2012 RAD-89 Water Sr-89 Sr-90 Ba-1 33 Cs-1 34 Cs-1 37 Co-60 Zn-65 Gr-A Gr-B 1-131 H-3 MRAD-16 Filter Gr-A pCi/L 63.4 pCi/L 33.5 pCi/L 89.2 pCi/L 66.5 pCi/L 152 pCi/L 73.3 pCi/L 109 pCi/L 82.4 pCi/L 43.6 pCi/L 25.9 pCi/L 15433 pCi/filter 39.5 pCi/L 46.5 pCi/L 16.6 pCi/L 85.2 pCi/L 76.9 pCi/L 177 pCi/L 77.4 pCi/L 209 pCi/L 50.6 pCi/L 59.3 pCi/L 22.9 pCi/L 5020 pCi/filter 59.6 58.5 37.4 82.3 74.2 155 72.9 105 62.9 44.2 27.1 15800 77.8 39.1 20.1 84.8 76.6 183 78.3 204 58.6 39.2 24.8 4890 46.9-66.3 27.4-43.1 69.1 -90.5 60.6- 81.6 140-172 65.6-82.6 94.5- 125 33.0 -78.0 29.6- 51.5 22.5-31.9 13800 -17400 A A A A A A A N (1)A A A 26.1 -121 A November, 2012 RAD-91 Water Sr-89 Sr-90 Ba-1 33 Cs-134 Cs-1 37 Co-60 Zn-65 Gr-A Gr-B 1-131 H-3 29.7 -46.1 14.4-23.8 71.3- 93.3 62.6 -84.3 165-203 70.5 -88.5 184 -240 30.6 -72.9 26.0 -46.7 20.6 -29.4 4190-5380 N (2)A A A A A A A N (2)A A MRAD-17 Filter Gr-A 87.5 29.3-136 A (1) Detector G1 is slightly biased high for Th-230 based measurements used only for ERA Gross Alpha samples. NCR 12-05 (2) The Sr-89 found to known ratio was 1.19, which TBE considers acceptable.

It appears the aliquot was entered incorrectly for the Gross Beta NCR 12-13 (a) Teledyne Brown Engineering reported result.(b) The ERA known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.(c) ERA evaluation:

A=acceptable.

Reported result falls within the Warning Limits. NA=not acceptable.

Reported result falls outside of the Control Limits. CE=check for Error. Reported result falls within the Control Limits and outside of the Warning Limit.58 of 180 D-4 TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)TELEDYNE BROWN ENGINEERING, 2012 (PAGE 1 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)March 2012 12-MaW26 Water Cs-1 34 Cs-1 37 Co-57 Co-60 H-3 Mn-54 K-40 Sr-90 Zn-65 Water Gr-A Gr-B 12-GrW26 12-MaS26 12-RdF26 Soil Cs-1 34 Cs-1 37 Co-57 Co-60 Mn-54 K-40 Sr-90 Zn-65 12-GrF26 12-RdV26 September 2012 12-MaW27 12-GrW27 AP Cs-1 34 Cs-1 37 Co-57 Co-60 Mn-54 Sr-90 Zn-65 AP Gr-A Gr-B Vegetation Cs-1 34 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Water Cs-1 34 Cs-137 Co-57 Co-60 H-3 Mn-54 K-40 Sr-90 Zn-65 Water Gr-A Gr-B Bq/L -0.0045 Bq/L 37.5 39.9 Bq/L 30.8 32.9 Bq/L 22.4 23.72 Bq/L 456 437 Bq/L 31.0 31.8 Bq/L 144 142 Bq/L -0.0084 Bq/L -0.369 Bq/L 2.06 2.14 Bq/L 7.48 6.36 Bq/kg 831 828 Bq/kg 0.145 Bq/kg 1270 1179 Bq/kg 7.61 1.56 Bq/kg 634 558 Bq/kg 1690 1491 Bq/kg 328 392 Bq/kg 753 642 Bq/sample 2.31 2.38 Bq/sample 2.15 1.79 Bq/sample

-0.0701 Bq/sample 2.62 2.182 Bq/sample 4.13 3.24 Bq/sample 0.0185 Bq/sample 4.19 2.99 Bq/sample 0.365 1.2 Bq/sample 2.31 2.4 Bq/sample 8.72 8.43 Bq/sample 0.0424 Bq/sample 15.5 12.0 Bq/sample 6.80 6.05 Bq/sample 0.0057 Bq/sample 2.24 2.11 Bq/sample 10.5 8.90 Bq/L 21.4 23.2 Bq/L 17.0 16.7 Bq/L 28.7 29.3 Bq/L 0.179 Bq/L 387 334 Bq/L 18.1 17.8 Bq/L 139 134 Bq/L 19.6 12.2 Bq/L 27.2 25.9 Bq/L 0.966 1.79 Bq/L 10.0 9.1 (1)27.9- 51.9 23.0 -42.8 16.60 -30.84 306 -568 22.3- 41.3 99 -185 (1)(1)0.64-3.64 3.18-9.54 580 -1076 (1)825- 1533 (2)391 -725 1044-1938 274-540 449 -835 1.67 -3.09 1.25-2.33 (1)1.527 -2.837 2.27 -4.21 (1)2.09- 3.89 0.4-2.0 1.2-3.6 5.90- 10.96 (1)8.4-15.6 4.24 -7.87 (1)1.48-2.74 6.23-11.57 16.2 -30.2 11.7-21.7 20.5 -38.1 (1)234 -434 12.5-23.1 94 -174 8.5-15.9 18.1 -33.7 0.54 -3.04 4.6-13.7 A A A A A A A A A A A A A A N (3)A A A A A W A W W A N (3)A A A A W A A A A A A A A A A A N (4)A A A 59 of 180 D-5 TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)TELEDYNE BROWN ENGINEERING, 2012 (PAGE 2 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)September 2012 12-MaS27 Soil Cs-1 34 Cs-1 37 Co-57 Co-60 Mn-54 K-40 Sr-90 Zn-65 Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg 880 1220 1330 552 1000 674 528 665 939 1150 1316 531 920 632 508 606 657-1221 805-1495 921-1711 372-690 644-1196 442-822 356-660 424-788 12-RdF27 12-GrF27 12-RdV27 AP Cs-134 Cs-1 37 Co-57 Co-60 Mn-54 Sr-90 Zn-65 AP Gr-A Gr-B Vegetation Cs-1 34 Cs-1 37 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 2.760 0.0415 2.00 1.78 2.40 0.931-0.688 2.74 1.92-3.56 (1)191.00 1.34-2.48 1.728 1.210 -2.246 2.36 1.65 -3.07 1.03 0.72 -1.34 (1)A A A A A A A A A A A A A A A A A A A A A A A A Bq/sample 0.434 0.97 0.29- 1.65 Bq/sample 1.927 1.92 0.96 -2.88 Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 6.28 4.62 6.51 5.32 3.59 0.0012-0.046 6.51 4.38 5.66 5.12 3.27 4.56 -8.46 3.07 -5.69 3.96 -7.36 3.58 -6.66 2.29 -4.25 (1)(1)(1)(2)(3)(4)(a)(b)False positive test.Sensitivity evaluation No cause was found for the failed high soil Co-60 sensitivity test or the high Zn-65 in AP, which TBE considers an anomaly. NCR 12-08 Sr-90 in water high due to incorrect aliquot entered in LIMS. 12-11 Teledyne Brown Engineering reported result.The MAPEP known value is equal to 1000/. of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.(c) DOEIMAPEP evaluation:

A=acceptable, W=acceptable with warning, N=not acceptable.

60 of 180 D-6 TABLE D-4 ERA (a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAMa ENVIRONMENTAL, INC., 2012 (Page 1 of 1)Concentration (pCi/L)Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1 783 04/09/12 Sr-89 ERW-1 783 04/09/12 Sr-90 ERW-1 786 ERW-1 786 ERW-1 786 ERW-1 786 ERW-1 786 04/09/12 04/09/12 04/09/12 04/09/12 04/09/12 Ba-1 33 Co-60 Cs-1 34 Cs-1 37 Zn-65 ERW-1 789 04/09/12 ERW-1789 " 04/09/12 Gr. Alpha Gr. Beta ERW-1798 04/09/12 H-3 ERW-6283 10/05/12 Sr-89 ERW-6283 10/05/12 Sr-90 62.2 +/- 6.0 33.7 +/- 2.1 75.7 +/- 4.1 71.9 +/- 4.0 70.0 +/- 4.3 151.5 +/-6.1 108.3 +/- 89.0 55.0 +/- 2.4 76.2 +/- 1.8 16023 +/- 355 41.5 +/- 4.1 19.7 +/- 1.6 82.7 +/- 4.4 77.2 +/- 3.7 74.4 +/- 1.5 183.0 +/- 6.2 211.0 +/- 9.9 47.0 +/- 2.3 33.4 +/- 1.2 23.3 +/- 1.0 58.5 46.9 -66.3 37.4 27.4 -43.1 82.3 72.9 74.2 155.0 105.0 62.9 33.0 -78.0 44.2 29.6 -51.5 15800 13800 -17400 69.1 -90.5 65.6 -82.6 60.6 -81.6 140.0 -172.0 94.5 -125.0 Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass 39.1 20.1 ERW-6286 ERW-6286 ERW-6286 ERW-6286 ERW-6286 10/05/12 10/05/12 10/05/12 10/05/12 10/05/12 Ba-133 Co-60 Cs-1 34 Cs-1 37 Zn-65 84.8 78.3 76.6 183.0 204.0 29.7 -46.1 14.4 -23.8 71.3 -93.3 70.5 -88.5 62.6 -84.3 165.0 -203.0 184.0 -240.0 ERW-6288 10/05/12 Gr. Alpha ERW-6288 10/05/12 Gr. Beta ERW-6290 10/05/12 1-131 58.6 30.6 -72.9 39.2 26.0 -46.7 24.8 20.6 -29.4 a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

c Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA.d Result of reanalysis:

38.3 +/- 1.3 pCi/L. Sample dilution problem suspected.

A new dilution was prepared.D-7 61 of 180 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)ENVIRONMENTAL, INC., 2012 (Page 1 of 2)Concentration a Known Control Lab Code D Date Analysis ,oratory result Activity Limits c Acceptance STSO-1 766 STSO-1 766 STSO-1 766 STSO-1 766 STSO-1 766 STSO-1 766 STSO-1766 STSO-1 766 STAP-1 772 STAP-1 772 STAP-1 772 STAP-1 772 STAP-1 772 STAP-1 772 STAP-1 772 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 Co-57 Co-60 Cs-1 34 Cs-1 37 K-40 Mn-54 Sr-90 Zn-65 Co-57 Co-60 Cs-1 34 Cs-1 37 Mn-54 Sr-90 Zn-65 STAP-1 773 02/01/12 Gr. Alpha STAP-1 773 02/01/12 Gr. Beta 1352.10 +/- 4.00 1.70 +/- 0.70 842.20 +/- 4.30 0.40 +/- 0.90 1729.60 +/- 22.20 647.60 +/- 4.20 383.20 +/- 15.30 766.70 +/- 6.70 0.010 +/- 0.01 2.40 +/- 0.08 2.33 +/- 0.13 2.07 +/- 0.10 3.77 +/- 0.14-0.010 +/- 0.060 3.67 +/- 0.20 0.51 +/- 0.05 2.75 +/- 0.10 14.57 +/- 0.28 6.45 +/- 0.23 8.39 +/- 0.29 0.01 +/- 0.09 0.03 +/- 0.08 10.31 +/- 0.67 1.68 +/- 0.09 6.33 +/- 0.10 33.30 +/- 0.40 23.20 +/- 0.40 0.30 +/- 3.00 40.10 +/- 0.60 460.00 +/- 12.10 153.00 +/- 4.20 32.70 +/- 0.60 0.10 +/- 0.20 0.01 +/- 0.20 1179.00 1.56 828.00 0.00 1491.00 558.00 392.00 642.00 0.00 2.18 2.38 1.79 3.24 0.000 2.99 825.00 -1533.00 1.00 -2.00 580.00 -1076.00 0.00 -1.00 1044.00 -1938.00 391.00 -725.00 274.00 -510.00 449.00 -835.00 0.000 -1.00 1.53 -2.84 1.67 -3.09 1.25 -2.33 2.27 -4.21-0.10 -0.13 2.09 -3.89 0.40 -2.00 1.20 -3.60 1.20 2.40 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STVE-1 776 STVE-1 776 STVE-1 776 STVE-1 776 STVE-1 776 STVE-1 776 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 Co-57 Co-60 Cs-1 34 Cs-137 Mn-54 Zn-65 STW-1 960 02/01/12 Gr. Alpha STW-1960 02/01/12 Gr. Beta 12.00 6.05 8.43 0.00 0.00 8.90 2.14 6.36 32.90 23.72 0.00 39.90 437.00 142.00 31.80 0.00 0.00 8.40 -15.60 4.24 -7.87 5.90-10.96 0.00-0.10 0.00-0.10 6.23-11.57 0.64 -3.64 3.18 -9.54 STW-1 964 STW-1 964 STW-1 964 STW-1 964 STW-1 964 STW-1 964 STW-1 964 STW-1 964 STW-1964 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 Co-57 Co-60 Cs-134 Cs-137 H-3 K-40 Mn-54 Sr-90 Zn-65 23.00 16.60 0.00 27.90 306.00 99.00 22.30 0.00 0.00-42.80-30.84-1.00-51.90-568.00-185.00-41.30-1.00-1.00.D-8 62 of 180 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)ENVIRONMENTAL, INC., 2012 (Page 2 of 2)Concentration a Known Control Lab Code ' Date Analysis -oratory result Activity Limits c Acceptance STSO-5392 08/01/12 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STVE-5395 d STVE-5395 STVE-5395 STVE-5395 STVE-5395 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 Sr-90 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Zn-65 Co-57 Co-60 Cs-134 Cs-137 Mn-54 483.52 +/- 16.47 1528.00 +/- 4.10 592.00 +/- 3.20 933.60 +/- 5.82 1319.80 +/- 5.50 737.30 +/- 17.70 1083.20 +/- 5.20 696.10 +/- 7.00 508.00 1316.00 531.00 939.00 1150.00 632.00 920.00 606.00 STAP-5398 08/01/12 Gr. Alpha STAP-5398 08/01/12 Gr. Beta 7.44 +/- 0.17 5.90 +/- 0.15 7.40 +/- 0.31 5.45 +/- 0.18 4.06 +/- 0.21 0.41 +/- 0.05 2.11 +/- 0.09 1.96 +/- 0.05 1.76 +/- 0.07 2.74 +/- 0.18 0.00 +/- 0.03 2.52 +/- 0.10 0.01 +/- 0.06 5.66 5.12 6.51 4.38 3.27 0.97 1.92 1.91 1.73 2.74 0.00 2.36 0.00 356.00 -660.00 921.00 -1711.00 372.00 -690.00 657.00 -1221.00 805.00 -1495.00 442.00 -822.00 644.00 -1196.00 424.00 -788.00 3.96 -7.36 3.58 -6.66 4.56 -8.46 3.07 -5.69 2.29 -4.25 0.29 -1.65 0.96 -2.88 1.34 -2.48 1.21 -2.25 1.92 -3.56-0.01 -0.01 1.65 -3.07-0.010 -0.010 Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STAP-5403 STAP-5403 STAP-5403 STAP-5403 STAP-5403 STAP-5403 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 Co-57 Co-60 Cs-134 Cs-1 37 Mn-54 Zn-65 a Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

b Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive".

MAPEP does not provide control limits.d Result of recount; 6.74 +/- 0.15 Bq/sample.

Gamma emitters for the vegetation matrix exhibited a high bias, only Co-57 exceeded acceptance limits. Recounted using a geometry more closely matched to the MAPEP sample size.D-9 63 of 180 APPENDIX E EFFLUENT DATA 64 of 180 APPENDIX E-1 DATA TABLES AND FIGURES E-1.1 65 of 180 TABLE OF CONTENTS IN T R O D U C T IO N .................................................................................................................

1 S U M M A R Y ...........................................................................................................................

2 1.0. EFFLUENTS

................................................................................................

3 1.1. Gaseous Effluents to the Atmosphere

.............................................

3 1.2. Liquids Released to Lake Michigan ..................................................

3 2.0. SOLID RADIOACTIVE W ASTE ...................................................................

3 3.0. DOSE TO MAN ............................................................................................

3 3.1. Gaseous Effluent Pathways .............................................................

3 3.1.1. Gaseous Releases .............................................................

4 3.1.1.1. Gamma Dose Rates ..............................................

4 3.1.1.2. Beta Air and Skin Dose Rate ................................

4 3.1.2. Radioactive Iodine ...............................................................

5 3.1.3. Dose to Thyroid ...................................................................

5 3.2. Liquid Effluent Pathways ...................................................................

5 3.3. Direct Radiation

................................................................................

5 3.4. Assessment of Dose to Member of Public ........................................

6 4.0. SITE METEOROLOGY

................................................................................

6 66 of 180 Table of Contents (cont.)APPENDIX E-1 DATA TABLES AND FIGURES .............................................................

E-1.1 Station Releases Table 2.0-1 Solid Radioactive W aste ...........................................................

E-1.2 Table 3.1-1 Maximum Doses Resulting from Airborne Releases ................

E-1.3 Table 3.2-1 Maximum Doses Resulting from Liquid Effluents

.....................

E-1.5 Table 3.3-1 Maximum Doses Resulting from Direct Radiation

....................

E-1.8 Table 3.4-1 10CFR20 Compliance Assessment

..........................................

E-1.6 Table 3.5-1 Maximum Doses Resulting from Airborne Releases Based On Concurrent Meteorological Data .........................................

E-1.7 67 of 180 INTRODUCTION Units 1 and 2 of the Zion Station, located in Zion, Illinois adjacent to Lake Michigan, are 1100 MWe (3520 MWt) Westinghouse pressurized water reactors.The plant permanently ceased operation in February of 1998 and has been permanently defueled.The station was designed to keep releases to the environment at levels below those specified in the regulations.

Historical data has been established that Zion, as a fully operational facility, did not contribute appreciable doses to the surrounding public. Sampling results for 2012 showed minimal releases above background for a variety of monitored pathways, e.g. water, vegetation, air samples and TLIV.Liquid effluents from Zion Station are released to Lake Michigan in controlled batches after radioassay of each batch and continuously through a monitored pathway. There are no routine noble gas releases.

Due to decay, iodine is no longer present. The only noble gas that remains is Kr85 captured in the spent fuel assemblies stored in the fuel pool in the fuel building.

The results of effluent analyses are summarized on a monthly basis and reported to the Nuclear Regulatory Commission as required per Technical Specifications.

Airborne concentrations of noble gases and particulate radioactivity in offsite areas are calculated using effluent and meteorological data.Currently Zion Station is undergoing decommissioning.

During the decommissioning process, containerized waste will be temporarily maintained at designated locations onsite. The designated locations are located in a manner to minimize the direct radiation exposure to the public at or near the site boundary.Environmental monitoring was conducted by sampling at indicator and control (background) locations in the vicinity of the Zion Station to measure changes in radiation or radioactivity levels that may be attributable to the station. If significant changes attributable to Zion Station are measured, these changes are correlated with effluent releases or direct radiation from containerized waste.68 of 180

SUMMARY

Gaseous, liquid and solid waste effluents for the period contributed to only a small fraction of the Station Technical Specification limits. Calculations of environmental concentrations based on effluent and meteorological data for the period indicate that consumption by the public of radionuclides attributable to the Zion Station does not exceed regulatory limits. Radiation exposure from direct radiation from containerized waste at the site boundary represented the critical pathway for the period with a maximum individual total body dose estimated to be 2.75E+00 mrem for the year, where a shielding and occupancy factor of 1.37E-01 is assumed. The assessment of radiation doses is performed in accordance with the Zion Station Offsite Dose Calculation Manual (ODCM). The results of analysis confirm that the station is operating in compliance with 10CFR50 Appendix 1, 10CFR20 and 40CFR190.2 69 of 180 1.0 EFFLUENTS 1.1 Gaseous Effluents to the Atmosphere Measured concentrations and isotopic composition of noble gases and particulate radioactivity released to the atmosphere were monitored during the year. A total of 0.00E+00 microcuries of fission and activation gases was released with a maximum average release rate of 0.00E+00 pCi/sec during any one quarter period.A total of 0.00E+00 microcuries of beta-gamma emitters was released as airborne particulate matter with a maximum average quarterly release rate of 0.00E-06 pCi/sec. Alpha-emitting radionuclides were not measurable.

Also, 4.92E-02 curies of tritium were released with a maximum average quarterly release rate of 1.81 E-03 pCi/sec.1.2 Liquids Released to Lake Michigan A total of 1.23E+07 liters of liquid waste containing 0.OOE+00 microcuries was discharged from the station via an approved pathway after dilution with a total of 1.71 E+1 0 liters of water. These wastes were released at a maximum quarterly average concentration of 0.00E+00 pCi/ml. A total of O.00E-00 curies of tritium was released.

Alpha activity released totaled 0.00 pCi for the year. Monthly release estimates and principal radionuclides in liquid effluents are reported in the Zion Nuclear Power Station Radioactive Effluent Report for 2012.2.0 SOLID RADIOACTIVE WASTE There were 79 solid radioactive waste shipments in 2012. For more detail, refer to the Zion Station 2012 Annual radioactive Effluent Release Report.3.0 DOSE TO MAN 3.1 Gaseous Effluent Pathways Table 3.1-1 summarizes the doses resulting from releases of airborne radioactivity via the different exposure pathways.3 70 of 180 3.1.1 Gaseous Releases 3.1.1.1 Gamma Dose Rates Offsite Gamma air and whole (total) body dose rates are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic composition of the gases, and meteorological data for the period. Based on measured effluents and average meteorological data, the maximum total body dose to an individual would be 1.25 E-04 mrem (child) for the year (Table 3.1-1), with an occupancy or shielding factor of 0.7 included, and based on measured effluents and concurrent meteorological data would be 6.80E-05 mrem (Table 3.5-1). The maximum gamma air dose was O.OOE+00 mrad based on measured effluents and average meteorological data (Table 3.1-1), and 0.OOE+00 mrad based on measured effluents and concurrent meteorological data (Table 3.5-1).3.1.1.2 Beta Air and Skin Dose Rates The range of beta particles in air is relatively small (on the order of a few meters or less);consequently, plumes of gaseous effluents may be considered "infinite" for purpose of calculating the dose from beta radiation incident on the skin.However, the actual dose to sensitive skin tissues is difficult to calculate due to the effect of the beta particle energies, thickness of inert skin and clothing covering sensitive tissues. For purposes of this report the skin is taken to have a thickness of 7.0 mg/cm2 and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year was 0.OOE+00 mrem based on measured effluents and average meteorological data (Table 3.1-1), and 0.OOE+00 mrem based on measured effluents and concurrent meteorological data (Table 3.5-1).The maximum offsite beta air dose for the year was 0.OOE+00 mrad based on measured effluents 4 71 of 180 and average meteorological data (Table 3.1-1), and O.OOE+00 mrad based on measured effluents and concurrent meteorological data (Table 3.5-1).3.1.2 Radioactive Iodine The human thyroid exhibits a significant capacity to concentrate ingested or inhaled iodine. The radioiodine, 1-131, released during routine operation of the station, may be made available to man resulting in a dose to the thyroid.The principal pathway of interest for this radionuclide is ingestion of radioiodine in milk. As Zion Station is not operational and 1-131 has decayed away, the maximum offsite concentration is estimated to be zero, as expected.3.1.3 Dose to Thyroid The hypothetical thyroid dose to a maximum exposed individual living near the station via ingestion of milk was calculated.

As Zion Station is not operational and 1-131 has decayed away, the maximum offsite concentration is estimated to be zero, as expected.3.2 Liquid Effluent Pathways The three principal pathways through the aquatic environment for potential doses to man from liquid waste are ingestion of potable water, eating aquatic foods, and exposure while on the shoreline.

Not all of these pathways are significant or applicable at a given time but a reasonable approximation of the dose can be made by adjusting the dose formula for season of the year or type and degree of use of the aquatic environment.

NRC developed equations*

were used to calculate the doses to the whole body, lower GI tracts, thyroid, bone, skin; specific parameters for use in the equations are given in the Zion Station Offsite Dose Calculation Manual. The maximum whole body dose (total body) for the year was 0.OOE+00 mrem and no organ dose exceeded 0.OOE+00 mrem (Table 3.2-1).3.3 Direct Radiation During the period January to December 2012, Zion Station during decommissioning has stored containerized radioactive waste that contributed a total of 2.75E+00 mrem to the whole body of a maximally exposed individual at site boundary taking into account 5 72 of 180 the occupancy factor of 1.37E-01 calculated in Zion Station Technical Support Document 13 (TSD 13-002)3.4 Assessment of Dose to Member of Public During the period January to December, 2012, Zion Station did not exceed the below limits as shown in Table 3.1-1 and Table 3.2-1 (based on yearly average meteorological data), and Figure 3.1-1 (based on concurrent meteorological data): The RETS limits on dose or dose commitment to an individual due to radioactive materials in liquid effluents from each reactor unit (3 mrem to the whole body or 10 mrem to any organ during any calendar year).The RETS limits on air dose in noble gases released in gaseous effluents to a member of the public from each reactor unit (10 mrads for gamma radiation or 20 mrad for beta radiation during any calendar year).The RETS limits on dose to a member of the public due to iodine-131, iodine-133, tritium, and radionuclides in particulate form 'with half-lives greater than eight days in gaseous effluents released from each reactor unit (15 mrem to any organ during any calendar year).The 10CFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem).4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix F. The data are presented as cumulative joint frequency*Nuclear Regulatory Commission, Regulatory Guide 1.109 (Rev. 1)distributions of the wind direction for the 250' level and wind speed class by atmospheric stability class determined from the temperature difference between the 250' and 35'levels. Data recovery for these measurements was 99.6% during 2012 (Table 3.5-1).6 73 of 180 Table 2.0-1 Solid Radioactive Waste Table 2.0-1 has been deliberately deleted. For details on solid waste disposal, see the Zion 2012 Annual Effluent Report E-l1.2 74 of 180 Table 3.1-1 Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 01/01/2012 00:00 Period End Date ...... ..04/01/2012 00:00 Period Duration (min): 1.310E+05 Coefficient Type ..... : Historical

=== RELEASE DATA Total Release Duration (minutes)

......................................

5.242E+05 Total Release Volume (cf) .............................................

1.521E+10 Average Release Flowrate (cfm) ........................................

2.902E+04 Average Period Flowrate (cfm) .........................................

1.161E+05=== NUCLIDE Nuclide H-3 H-3 DATA Average ECrcent uCi uCi/cc Ratio EC 1.32E+04 3.OEE-II 3.O6E-04 1.005-07 1.32E+04 3.06E-11 3.06E-04 Total 1.32E+04 3.06E-11 3.06E-04 E. 1-3 75 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 01/01/2012 00:00 Period End Date ...... :.04/01/2012 00:00 Period Duration (min): 1.310E+05 Coefficient Type ..... :.Historical Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... ..0.0 Compass Point ........ :.0.0=== PERIOD DOSE BY AGEGROUP, PATHWAY, ORGAN (mrem)Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AINHL 0.OOE+00 4.16E-06 4.16E-06 4.16E-06 4.16E-06 4.16E-06 0.OOE+00 4.16E-06 AVEG 0.OOE+00 7.47E-06 7.47E-06 7.47E-06 7.47E-06 7.47E-06 0.OOE+00 7.47E-06 AGMILK 0.OOE+00 5.14E-06 5.14E-06 5.14E-06 5.14E-06 5.14E-06 0.OOE+00 5.14E-06 ACMEAT 0.OOE+00 1.07E-06 1.07E-06 1.07E-06 1.07E-06 1.07E-06 0.OOE+00 1.07E-06 ACMILK 0.OOE+00 2.52E-06 2.52E-06 2.52E-06 2.52E-06 2.52E-06 0.OOE+00 2.52E-06 TINHL 0.OOE+00 4.20E-06 4.20E-06 4.20E-06 4.20E-06 4.20E-06 0.OOE+00 4.20E-06 TVEG 0.OOE+00 8.54E-06 8.54E-06 8.54E-06 8.54E-06 8.54E-06 0.00E+00 8.54E-06 TGMILK 0.OOE+00 6.69E-06 6.69E-06 6.69E-06 6.69E-06 6.69E-06 0.OOE+00 6.69E-06 TCMEAT 0.OOE+00 6.39E-07 6.39E-07 6.39E-07 6.39E-07 6.39E-07 0.OOE+00 6.39E-07 TCMILK 0.OOE+00 3.28E-06 3.28E-06 3.28E-06 3.28E-06 3.28E-06 0.OOE+00 3.28E-06 CINHL 0.OOE+00 3.71E-06 3.71E-06 3.71E-06 3.71E-06 3.71E-06 0.OOE+00 3.71E-06 CVEG 0.OOE+00 1.33E-05 1.33E-05 1.33E-05 1.33E-05 1.33E-05 0.OOE+00 1.33E-05 CGMILK 0.OOE+00 1.06E-05 1.06E-05 1.06E-05 1.06E-05 1.06E-05 0.OOE+00 1.06E-05 CCMEAT 0.OOE+00 7.75E-07 7.75E-07 7.75E-07 7.75E-07 7.75E-07 0.OOE+00 7.75E-07 CCMILK 0.OOE+00 5.20E-06 5.20E-06 5.20E-06 5.20E-06 5.20E-06 0.OOE+00 5.20E-06 IINHL 0.OOE+00 2.13E-06 2.13E-06 2.13E-06 2.13E-06 2.13E-06 0.OOE+00 2.13E-06 IGMILK 0.OOE+00 1.61E-05 1.61E-05 1.61E-05 1.61E-05 1.61E-05 0.OOE+00 1.61E-05 ICMILK 0.OOE+00 7.88E-06 7.88E-06 7.88E-06 7.88E-06 7.88E-06 0.OOE+00 7.88E-06=== PERIOD DOSE BY AGEGROUP, ORGAN (mrem)-----..................................

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0.OOE+00 2.04E-05 2.04E-05 2.04E-05 2.04E-05 2.04E-05 0.OOE+00 2.04E-05 TEEN 0.OOE+00 2.34E-05 2.34E-05 2.34E-05 2.34E-05 2.34E-05 0.OOE+00 2.34E-05 CHILD 0.OOE+00 3.35E-0S 3.35E-05 3.35E-05 3.35E-05 3.35E-05 0.OOE+00 3.35E-05 INFANT 0.OOE+00 2.61E-05 2.61E-0S 2.61E-0S 2.61E-05 2.61E-05 0.OOE+00 2.61E-05 E.1-4 76 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 01/01/2012 00:00 Period End Date ...... :.04/01/2012 00:00 Period Duration (min): 1.310E+05 Coefficient Type ..... Historical Receptor .............

5 Composite Crit. Receptor -IP Distance (meters) .... :.0.0 Compass Point ........ :.0.0 MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD LIVER TO LIMIT Dose (mrem)3.35E-0 (Any Organ)Limit Admin Admin % T.Spec T.Spec %Period Limit of Limit Limit of Limit 5 31-day 2.25E-01 1.49E-02 3.OOE-01 1.12E-02 Quarter 5.63E+00 5.96E-04 7.50E+00 4.47E-04 Annual 1.13E+01 2.98E-04 1.50E+01 2.24E-04 Critical Pathway .........

2 Vegetation (VEG)Major Contributors

...... ..0.0 % or greater to total Nuclide Percentage H-3 9.99E+01=== MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD TBODY TO LIMIT Dose (mrem)3.35E-0 (Tot Body))Limit Admin Admin % T.Spec T.Spec %Period Limit of Limit Limit of Limit 5 31-day 1.50E-01 2.24E-02 2.OOE-01 1.68E-02 Quarter 5.25E+00 6.39E-04 7.50E+00 4.47E-04 Annual 1.05E+01 3.19E-04 1.50E+01 2.24E-04 Critical Pathway ........ 2 Vegetation (VEG)Major Contributors

...... :.0.0 % or greater to total Nuclide Percentage H-3 9.99E+01 E.1-5 77 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 04/01/2012 00:00 Period End Date ...... ..07/01/2012 00:00 Period Duration (min) : 1.310E+05 Coefficient Type ..... : Historical

=== RELEASE DATA ..............................Total Release Duration (minutes)

......................................

5.136E+05 Total Release Volume (cf) .............................................

1.547E+10 Average Release Flowrate (cfm) ........................................

3.013E+04 Average Period Flowrate (cfm) .........................................

1.181E+05=== NUCLIDE Nuclide--3 H-3 DATA Average ECrcent uCi uCi/cc Ratio EC 1.42E+04 3.25E-II 3.25E-04 1.OOE-07 1.42E+04 3.25E-11 3.25E-04 Total 1.42E+04 3.25E-11 3.25E-04 E.1-6 78 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID ...........

1 All Gas Releases Period Start Date .... 04/01/2012 00:00 Period End Date ...... ..07/01/2012 00:00 Period Duration (min): 1.310E+05 Coefficient Type ..... :.Historical Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... ..0.0 Compass Point ........ ..0.0 PERIOD DOSE BY AGEGROUP, PATHWAY, ORGAN (mrem)Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AINHL 0.OOE+00 4.49E-06 4.49E-06 4.49E-06 4.49E-06 4.49E-06 0.OOE+00 4.49E-06 AVEG 0.OOE+00 8.05E-06 8.05E-06 8.05E-06 8.05E-06 8.05E-06 0.OOE+00 8.05E-06 AGMILK 0.OOE+00 5.55E-06 5.55E-06 5.55E-06 5.55E-06 5.55E-06 0.OOE+00 5.55E-06 ACMEAT 0.OOE+00 1.16E-06 1.16E-06 1.16E-06 1.16E-06 1.16E-06 0.OOE+00 1.16E-06 ACMILK 0.OOE+00 2.72E-06 2.72E-06 2.72E-06 2.72E-06 2.72E-06 0.OOE+00 2.72E-06 TINHL 0.OOE+00 4.53E-06 4.53E-06 4.S3E-06 4.53E-06 4.53E-06 0.OOE+00 4.53E-06 TVEG 0.OOE+00 9.22E-06 9.22E-06 9.22E-06 9.22E-06 9.22E-06 0.OOE+00 9.22E-06 TGMILK 0.OOE+00 7.22E-06 7.22E-06 7.22E-06 7.22E-06 7.22E-06 0.OOE+00 7.22E-06 TCMEAT 0.OOE+00 6.90E-07 6.90E-07 6.90E-07 6.90E-07 6.90E-07 0.OOE+00 6.90E-07 TCMILK 0.OOE+00 3.54E-06 3.54E-06 3.54E-06 3.54E-06 3.54E-06 0.OOE+00 3.54E-06 CINHL 0.OOE+00 4.OOE-06 4.OOE-06 4.OOE-06 4.OOE-06 4.OOE-06 0.OOE+00 4.OOE-06 CVEG 0.OOE+00 1.43E-05 1.43E-05 1.43E-05 1.43E-05 1.43E-05 0.OOE+00 1.43E-05 CGMILK 0.OOE+00 1.14E-05 1.14E-05 1.14E-05 1.14E-05 1.14E-05 0.OOE+00 1.14E-05 CCMEAT 0.OOE+00 8.36E-07 8.36E-07 8.36E-07 8.36E-07 8.36E-07 0.OOE+00 8.36E-07 CCMILK 0.OOE+00 5.61E-06 5.61E-06 5.61E-06 5.61E-06 5.61E-06 0.OOE+00 5.61E-06 IINHL 0.OOE+00 2.30E-06 2.30E-06 2.30E-06 2.30E-06 2.30E-06 0.00E+00 2.30E-06 IGMILK 0.OOE+00 1.74E-05 1.74E-05 1.74E-05 1.74E-05 1.74E-05 0.OOE+00 1.74E-05 ICMILK 0.OOE+00 8.50E-06 8.50E-06 8.50E-06 8.50E-06 8.50E-06 0.OOE+00 8.50E-06 PERIOD DOSE BY AGEGROUP, ORGAN (mrem)Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0.OOE+00 2.20E-05 2.20E-05 2.20E-05 2.20E-05 2.20E-05 0.OOE+00 2.20E-05 TEEN 0.OOE+00 2.52E-05 2.52E-05 2.52E-05 2.52E-05 2.52E-05 0.OOE+00 2.52E-05 CHILD 0.OOE+00 3.62E-05 3.62E-05 3.62E-05 3.62E-05 3.62E-05 0.OOE+00 3.62E-05 INFANT 0.OOE+00 2.82E-05 2.82E-05 2.82E-05 2.82E-05 2.82E-05 0.OOE+00 2.82E-05 E.1-7 79 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 04/01/2012 00:00 Period End Date ...... :.07/01/2012 00:00 Period Duration (min): 1.310E+05 Coefficient Type ..... Historical Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... ..0.0 Compass Point ........ :.0.0=== MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD LIVER TO LIMIT Dose (mrem)3.62E-0 (Any Organ)Limit Admin Admin % T.Spec T.Spec %Period Limit of Limit Limit of Limit'5 31-day 2.25E-01 1.61E-02 3.OOE-01 1.21E-02 Quarter 5.63E+00 6.43E-04 7.50E+00 4.82E-04 Annual 1.13E+01 3.22E-04 1.50E+01 2.41E-04 Critical Pathway ........ 2 Vegetation (VEG)Major Contributors

...... 0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02=== MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD TBODY TO LIMIT (Tot Body))Dose Limit Admin Admin % T.Spec T.Spec %(mrem) Period Limit of Limit Limit of Limit 3.62E-05 31-day 1.50E-01 2.41E-02 2.OOE-01 1.81E-02 Quarter 5.25E+00 6.89E-04 7.50E+00 4.82E-04 Annual 1.05E+01 3.45E-04 1.50E+01 2.41E-04 Critical Pathway ........ :.2 Vegetation (VEG)Major Contributors

...... ..0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02 E.1-8 80 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 07/01/2012 00:00 Period End Date ...... ..10/01/2012 00:00 Period Duration (min): 1.325E+05 Coefficient Type ..... : Historical RELEASE DATA Total Release Duration (minutes)

......................................

5.299E+05 Total Release Volume (cf) .............................................

1.722E+10 Average Release Flowrate (cfm) ........................................

3.249E+04 Average Period Flowrate (cfm) .........................................

1.299E+05=== NUCLIDE Nuclide H-3 H-3 Total DATA Average ECrcent uCi uCi/cc Ratio EC 9.OOE+03 1.85E-11 1.85E-04 1.OOE-07 9.00E+03 1.85E-II 1.85E-04 9.OOE+03 1.85E-11 1.85E-04 E. 1-9 81 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 07/01/2012 00:00 Period End Date ...... :.10/01/2012 00:00 Period Duration (min): 1.325E+05 Coefficient Type ..... ..Historical Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... ..0.0 Compass Point ........ :.0.0 PERIOD DOSE BY AGEGROUP, PATHWAY, ORGAN (mrem)Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AINHL AVEG AGMILK ACMEAT ACMILK TINHL TVEG TGMILK TCMEAT TCMILK CINHL CVEG CGMILK CCMEAT CCMILK IINHL IGMILK ICMILK 0 OOE+00 0 OOE+00 0 OOE+00 0 OOE+00 0 OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. 00E+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 2.84E-06 5. lOE-06 3. 51E-06 7.33E-07 1.72E-06 2.87E-06 5.83E-06 4. 57E-06 4. 36E-07 2 .24E- 06 2. 53E-06 9. OSE-06 7.24E-06 5.29E-07 3. 5SE-06 1. 46E-06 1.10E-05 5.38E-06 2.84E-06 5. lOE-06 3. 51E-06 7.33E-07 1. 72E-06 2.87E-06 5.83E-06 4. 57E-06 4. 36E-07 2. 24E-06 2. 53E-06 9. 05E-06 7.24E-06 5 .29E-07 3. 55E-06 1. 46E-06 1.10E-05 5.38E-06 2 84E-06 5 10E-06 3 51E-06 7. 33E-07 1. 72E-06 2 .87E-06 5 83E-06 4. 57E-06 4 36E-07 2 .24E-06 2 .53E-06 9 .05E-06 7 .24E-06 5. 29E-07 3 .55E-06 1. 46E-06 1. 10E-05 5. 38E-06 2 .84E-06 5. OE-06 3. 51E-06 7.33E-07 1.72E-06 2.87E-06 5.83E-06 4.57E-06 4.36E-07 2 .24E-06 2.53E-06 9.05E-06 7.24E-06 5.29E-07 3.55E-06 1.46E-06 1.10E-05 5.38E-06 2 .84E-06 5. lOE-06 3.51E-06 7.33E-07 1. 72E- 06 2 .87E-06 5.83E-06 4.57E-06 4.36E-07 2 .24E-06 2 .53E-06 9. 05E-06 7.24E-06 5.29E-07 3.55E-06 1.46E-06 1.10E-05 5.38E-06 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0 OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 2 .84E-06 5 1OE-06 3 51E-06 7. 33E-07 1. 72E-06 2 .87E-06 5. 83E-06 4. 57E-06 4 36E-07 2 .24E-06 2 .53E-06 9 05E-06 7 .24E-06 5 .29E-07 3. 55E-06 1 .46E-06 1. 10E-05 5. 38E-06 PERIOD DOSE BY AGEGROUP, ORGAN (mrem)Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0.OOE+00 1.39E-05 1.39E-05 1.39E-05 1.39E-05 1.39E-05 0.OOE+00 1.39E-05 TEEN 0.OOE+00 1.59E-05 1.59E-05 1.59E-05 1.59E-05 1.59E-05 0.OOE+00 1.59E-05 CHILD 0.OOE+00 2.29E-05 2.29E-05 2.29E-05 2.29E-05 2.29E-05 0.OOE+00 2.29E-05 INFANT 0.OOE+00 1.78E-05 1.78E-05 1.78E-05 1.78E-05 1.78E-05 0.OOE+00 1.78E-05 E.1-10 82 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 07/01/2012 00:00 Period End Date ...... ..10/01/2012 00:00 Period Duration (min): 1.325E+05 Coefficient Type ..... Historical Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... :.0.0 Compass Point ........ :.0.0 MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD LIVER TO LIMIT Dose (mrem)2.29E-0 (Any Organ)Limit Admin Admin % T.Spec T.Spec %Period Limit of Limit Limit of Limit 5 31-day 2.25E-01 1.02E-02 3.OOE-01 7.63E-03 Quarter 5.63E+00 4.07E-04 7.50E+00 3.05E-04 Annual 1.13E+01 2.04E-04 1.50E+01 1.53E-04 Critical Pathway .........

2 Vegetation (VEG)Major Contributors

...... :.0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02 MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD TBODY TO LIMIT Dose (mrem)2.29E-0 (Tot Body))Limit Admin Admin % T.Spec T.Spec %Period Limit of Limit Limit of Limit 5 31-day 1.50E-01 1.53E-02 2.OOE-01 1.14E-02 Quarter 5.25E+00 4.36E-04 7.50E+00 3.05E-04 Annual 1.05E+01 2.18E-04 1.50E+01 1.53E-04 Critical Pathway ........ ..2 Vegetation (VEG)Major Contributors

...... ..0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02 E.1-1lI 83 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 10/01/2012 00:00 Period End Date ...... ..01/01/2013 00:00 Period Duration (min): 1.325E+05 Coefficient Type ..... : Historical

=== RELEASE DATA Total Release Duration (minutes)

......................................

5.299E+05 Total Release Volume (cf) .............................................

1.722E+10 Average Release Flowrate (cfm) ........................................

3.250E+04 Average Period Flowrate (cfm) .........................................

1.300E+05=== NUCLIDE Nuclide H-3 H-3 DATA Average ECrcent uCi uCi/cc Ratio EC 1.28E+04 2.62E-II 2.62E-04 1.OOE-07 1.28E+04 2.62E-11 2.62E-04 Total 1.28E+04 2.62E-11 2.62E-04 E.1-12 84 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 Period Start Date .... 10/i Period End Date ...... ..01/i Period Duration (min): 1.3: Coefficient Type ..... ..Hisl Receptor .............

5 Distance (meters) .... ..0.0 Compass Point ........ ..0.0 All Gas Releases 01/2012 00:00 01/2013 00:00 25E+05 torical Composite Crit. Receptor -IP PERIOD DOSE BY AGEGROUP, PATHWAY, ORGAN (mrem)-.............................

Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AINHL 0.OOE+00 4.04E-06 4.04E-06 AVEG 0.OOE+00 7.25E-06 7.25E-06 AGMILK 0.OOE+00 4.99E-06 4.99E-06 ACMEAT 0.OOE+00 1.04E-06 1.04E-06 ACMILK 0.OOE+00 2.45E-06 2.45E-06 TINHL 0.OOE+00 4.08E-06 4.08E-06 TVEG 0.OOE+00 8.30E-06 8.30E-06 TGMILK 0.OOE+00 6.50E-06 6.50E-06 TCMEAT 0.OOE+00 6.21E-07 6.21E-07 TCMILK 0.OOE+00 3.19E-06 3.19E-06 CINHL 0.OOE+00 3.60E-06 3.60E-06 CVEG 0.OOE+00 1.29E-05 1.29E-05 CGMILK 0.OOE+00 1.03E-05 1.03E-05 CCMEAT 0.OOE+00 7.53E-07 7.53E-07 CCMILK 0.OOE+00 5.05E-06 5.05E-06 IINHL 0.OOE+00 2.07E-06 2.07E-06 IGMILK 0.OOE+00 1.56E-05 1.56E-05 ICMILK 0.OOE+00 7.65E-06 7.65E-06 4. 04E-06 7 .25E-06 4.99E-06 1. 04E-06 2 .45E-06 4.08E-06 8.30E-06 6.50E-06 6.21E-07 3.19E-06 3 .60E-06 1.29E-05 1.03E-05 7.53E-07 5.05E-06 2 .07E-06 1.56E-05 7.65E-06 4.04E-06 7 .25E-06 4 .99E-06 1. 04E-06 2 .45E-06 4. 08E-06 8 .30E-06 6. 50E-06 6 .21E-07 3. 19E-06 3. 60E-06 1. 29E-05 1. 03E-05 7. 53E-07 5. 05E-06 2. 07E-06 1. 56E-05 7. 65E-06 4.04E-06 7 .25E-06 4.99E-06 1.04E-06 2 .45E-06 4.08E-06 8. 30E- 06 6.50E-06 6.21E-07 3.19E-06 3.60E-06 1.29E-05 1. 03E-05 7. 53E-07 5. 05E-06 2.07E-06 1.56E-05 7.65E-06 0.OOE+00 4.04E-06 0.OOE+00 7.25E-06 0.OOE+00 4.99E-06 0.OOE+00 1.04E-06 0.OOE+00 2.45E-06 0.OOE+00 4.08E-06 0.OOE+00 8.30E-06 0.OOE+00 6.50E-06 0.OOE+00 6.21E-07 0.OOE+00 3.19E-06 0.OOE+00 3.60E-06 0.OOE+00 1.29E-05 0.OOE+00 1.03E-05 0.OOE+00 7.53E-07 0.OOE+00 5.05E-06 0.OOE+00 2.07E-06 0.OOE+00 1.56E-05 0.OOE+00 7.65E-06 PERIOD DOSE BY AGEGROUP, ORGAN (mrem)Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT TEEN CHILD INFANT 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 1.98E-05 2 .27E-05 3. 26E-05 2. 53E-05 1. 98E-05 2. 27E-05 3 .26E-05 2. 53E-05 1.98E-05 2. 27E-05 3 .26E-05 2. 53E-05 1. 98E-05 2 .27E-05 3 .26E-05 2.53E-05 1. 98E-05 2 .27E-05 3 .26E-05 2.53E-05 0. OOE+00 0. OOE+00 0.OOE+00 0. OOE+00 1.98E-05 2 .27E-05 3.26E-05 2.53E-05 E.1-13 85 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 10/01/2012 00:00 Period End Date ...... :.01/01/2013 00:00 Period Duration (min): 1.325E+05 Coefficient Type ..... Historical Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... ..0.0 Compass Point ........ ..0.0=== MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD LIVER TO LIMIT (Any Organ)Dose Limit Admin Admin % T.Spec T.Spec %(mrem) Period Limit of Limit Limit of Limit 3.26E-05 31-day 2.25E-01 1.45E-02 3.OOE-01 1.09E-02 Quarter 5.63E+00 5.79E-04 7.50E+00 4.34E-04 Annual 1.13E+01 2.90E-04 1.50E+01 2.17E-04 Critical Pathway ........ 2 Vegetation (VEG)Major Contributors

....... .0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02=== MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD TBODY TO LIMIT (Tot Body))Dose Limit Admin Admin % T.Spec T.Spec %(mrem) Period Limit of Limit Limit of Limit 3.26E-0S 31-day 1.50E-01 2.17E-02 2.OOE-01 1.63E-02 Quarter 5.25E+00 6.20E-04 7.50E+00 4.34E-04 Annual 1.05E+01 3.10E-04 1.50E+01 2.17E-04 Critical Pathway ........ ..2 Vegetation (VEG)Major Contributors

...... ..0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02 E.1-14 86 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 01/01/2012 00:00 Period End Date ...... :.01/01/2013 00:00 Period Duration (min): 5.270E+05 Coefficient Type ..... ..Historical From Unit ...............

0 To Unit .................

2 RELEASE DATA Total Release Duration (minutes)

......................................

2.098E+06 Total Release Volume (cf) .............................................

6.513E+10 Average Release Flowrate (cfm) ........................................

3.104E+04 Average Period Flowrate (cfm) .........................................

1.236E+05=== NUCLIDE Nuclide H-3 H-3 Total DATA Average ECrcent uCi uCi/cc Ratio EC 4.92E+04 2.67E-11 2.67E-04 -.OOE-07 4.92E+04 2.67E-11 2.67E-04 4.92E+04 2.67E-11 2.67E-04 E.1-15 87 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 01/01/2012 00:00 Period End Date ...... ..01/01/2013 00:00 Period Duration (min): 5.270E+05 Coefficient Type ..... Historical From Unit ...............

0 To Unit .................

2 Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... ..0.0 Compass Point ........ ..0.0=== PERIOD DOSE BY AGEGROUP, PATHWAY, ORGAN (mrem)Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AINHL AVEG AGMILK ACMEAT ACMILK TINHL TVEG TGMILK TCMEAT TCMILK CINHL CVEG CGMILK CCMEAT CCMILK IINHL IGMILK ICMILK 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 1. SSE- 05 2. 79E- 05 1. 92E-05 4.01E-06 9.41E-06 1.57E-05 3. 19E-05 2. 50E-05 2 .39E-06 1.22E-OS 1.38E-05 4. 95E-05 3. 96E-05 2 .89E- 06 1.94E-05 7. 96E-06 6. OOE-05 2. 94E-05 1. 55E-05 2 .79E-05 1. 92E-05 4 01E-06 9 .41E-06 1. 57E-05 3 .19E-05 2 50E-05 2 .39E-06 1 .22E-05 1. 38E-05 4 95E-05 3. 96E-05 2 .89E-06 1. 94E-05 7. 96E-06 6 .OOE-05 2 94E-05 1.55E-05 2 .79E-05 1. 92E-05 4.01E-06 9.41E-06 1.57E-05 3.19E-05 2.50E-05 2.39E-06 1.22E-05 1.38E-0S 4. 95E-05 3. 96E-05 2.89E-06 1. 94E-05 7. 96E-06 6. OOE-05 2. 94E-0S 1.55E-05 2. 79E-05 1. 92E-0S 4. 01E-06 9 .41E-06 1.57E-05 3.19E-05 2.50E-05 2.39E-06 1.22E-05 1.38E-05 4.95E-0S 3.96E-05 2.89E-06 1. 94E-0S 7. 96E-06 6. OOE-05 2. 94E-05 1.55E-05 2.79E-05 1. 92E-05 4. 01E-06 9.41E-06 1. 57E-05 3.19E-05 2.50E-05 2.39E-06 1.22E-05 1.38E-05 4. 95E-05 3. 96E-05 2 .89E-06 1. 94E-05 7. 96E-06 6 OOE-05 2 94E-05 0. OOE+00 0 OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0 OOE+00 0 OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 1.55E-05 2 .79E-05 1.92E-05 4. 01E-06 9.41E-06 1.57E-05 3. 19E-05 2 .50E-05 2.39E-06 1.22E-05 1.38E-05 4 .95E-05 3.96E-05 2.89E-06 1.94E-05 7. 96E-06 6. OOE-05 2. 94E-05=== PERIOD DOSE BY AGEGROUP, ORGAN (mrem)Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT TEEN CHILD INFANT 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 7. 60E-05 8.72E-05 1.25E-04 9. 74E- 05 7. 60E-05 8.72E-05 1 .25E-04 9. 74E-05 7. 60E-05 8. 72E-05 1.25E-04 9. 74E-05 7. 60E-05 8. 72E-05 1.25E-04 9. 74E-05 7 .60E-05 8.72E-05 1.25E-04 9.74E-05 0. OOE+00 0. OOE+00 0. OOE+00 0. OOE+00 7. 60E-05 8. 72E-05 1.25E-04 9. 74E-05 E.1-16 88 of 180 Table 3.1-1 (cont'd)Maximum Dose Resulting from Airborne Releases Zion Station 2012 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor -Limited Analysis)Release ID .............

1 All Gas Releases Period Start Date .... 01/01/2012 00:00 Period End Date ...... :.01/01/2013 00:00 Period Duration (min): 5.270E+05 Coefficient Type ..... :.Historical From Unit ...............

0 To Unit .................

2 Receptor ...............

5 Composite Crit. Receptor -IP Distance (meters) .... ..0.0 Compass Point ........ ..0.0=== MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD LIVER TO LIMIT (Any Organ)Dose Limit Admin Admin % T.Spec T.Spec (mrem) Period Limit of Limit Limit of Limit 1.25E-Q4 31-day 2.25E-01 5.56E-02 3.OOE-01 4.17E-02 Quarter 5.63E+00 2.23E-03 7.50E+00 1.67E-03 Annual 1.13E+01 1.l1E-03 1.50E+01 8.35E-04 Critical Pathway ........ :.2 Vegetation (VEG)Major Contributors

...... :.0.0 % or greater to total Nuclide Percentage H-3 9.98E+01=== MAXIMUM PERIOD DOSE Dose Age Period Group Organ Strt->End CHILD TBODY TO LIMIT (Tot Body))Dose Limit Admin Admin % T.Spec T.Spec %(mrem) Period Limit of Limit Limit of Limit 1.25E-04 31-day 1.50E-01 8.35E-02 2.OOE-01 6.26E-02 Quarter 5.25E+00 2.38E-03 7.50E+00 1.67E-03 Annual 1.05E+01 1.19E-03 1.50E+01 8.35E-04 Critical Pathway ........ ..2 Vegetation (VEG)Major Contributors

...... :.0.0 % or greater to total Nuclide Percentage H-3 9.98E+01 E.1-17 89 of 180 Table 3.2-1 Maximum dose Resulting from Liquid Effluents Zion Station 2012 LIQUID RELEASE AND DOSE

SUMMARY

REPORT-------------(PERIOD BASIS)-----------

Release ID ..............

1 All Liquid Release Types Period Start Date ..... ..01/01/2012 00:00 Period End Date ....... :.04/01/2012 00:00 Period Duration (mins): 1.310E+05--- RELEASE DATA Total Release Duration (minutes)

.....................................

1.282E+05 Total Undiluted Volume Released (gallons)

............................

6.945E+05 Average Undiluted Flowrate (gpm) .....................................

5.419E+00 Total Dilution Volume (gallons)

......................................

2.883E+09 Average Dilution Flowrate (gpm) ......................................

2.200E+04 NUCLIDE DATA---- Undiluted-I I- ---- Diluted ------Average Percent Average Percent Nuclide uCi uCi/ml of 5*ECC uCi/ml of 5*EC E.1-18 90 of 180 Table 3.2-1 (cont'd)Maximum dose Resulting from Liquid Effluents Zion Station 2012 LIQUID RELEASE AND DOSE

SUMMARY

REPORT-------------(PERIOD BASIS)-----------

Release ID ..............

1 All Liquid Release Types Period Start Date ..... ..04/01/2012 00:00 Period End Date ....... :.07/01/2012 00:00 Period Duration (mins): 1.310E+05 RELEASE DATA Total Release Duration (minutes)

.....................................

1.310E+05 Total Undiluted Volume Released (gallons)

............................

9.400E+05 Average Undiluted Flowrate (gpm) .....................................

7.174E+00 Total Dilution Volume (gallons)

......................................

9.734E+08 Average Dilution Flowrate (gpm) ......................................

7.429E+03 NUCLIDE DATA---- Undiluted-I I- ---- Diluted ------Average Percent Average Percent Nuclide uci uCi/ml of 5*ECC uci/ml of 5*EC E.1-19 91 of 180 Table 3.2-1 (cont'd)Maximum dose Resulting from Liquid Effluents Zion Station 2012 LIQUID RELEASE AND DOSE

SUMMARY

REPORT-------------(PERIOD BASIS)------------

Release ID ..............

1 All Liquid Release Types Period Start Date ..... 07/01/2012 00:00 Period End Date ....... :.10/01/2012 00:00 Period Duration (mins): 1.325E+05=== RELEASE DATA Total Release Duration (minutes)

.....................................

1.325E+05 Total Undiluted Volume Released (gallons)

............................

8.240E+05 Average Undiluted Flowrate (gpm) .....................................

6.220E+00 Total Dilution Volume (gallons)

......................................

3.312E+08 Average Dilution Flowrate (gpm) ......................................

2.500E+03 NUCLIDE DATA---- Undiluted-I I- ---- Diluted ------Average Percent Average Percent Nuclide uCi uCi/ml of 5*ECC uCi/ml of 5*EC E. 1 -20 92 of 180 Table 3.2-1 (cont'd)Maximum dose Resulting from Liquid Effluents Zion Station 2012 LIQUID RELEASE AND DOSE

SUMMARY

REPORT-------------(PERIOD BASIS)------------

Release ID ..............

1 All Liquid Release Types Period Start Date ..... ..10/01/2012 00:00 Period End Date ....... ..01/01/2013 00:00 Period Duration (mins) : 1.325E+05 RELEASE DATA Total Release Duration (minutes)

.....................................

1.325E+05 Total Undiluted Volume Released (gallons)

............................

7.849E+05 Average Undiluted Flowrate (gpm) .....................................

5.924E+00 Total Dilution Volume (gallons)

......................................

3.312E+08 Average Dilution Flowrate (gpm) .......................................

2.500E+03 NUCLIDE DATA---- Undiluted-I I- ---- Diluted ------Average Percent Average Percent Nuclide uCi uCi/ml of 5*ECC uCi/ml of 5*EC E. 1-21 93 of 180 Table 3.2-1 (cont'd)Maximum dose Resulting from Liquid Effluents Zion Station 2012 LIQUID RELEASE AND DOSE

SUMMARY

REPORT-------------(PERIOD BASIS)-----------

Release ID ..............

1 All Liquid Release Types Period Start Date ..... :.01/01/2012 00:00 Period End Date ....... :.01/01/2013 00:00 Period Duration (mins): 5.270E+05 RELEASE DATA Total Release Duration (minutes)

.....................................

5.242E+05 Total Undiluted Volume Released (gallons)

............................

3.243E+06 Average Undiluted Flowrate (gpm) .....................................

6.188E+00.

Total Dilution Volume (gallons)

......................................

4.519E+09 Average Dilution Flowrate (gpm) ......................................

8.574E+03 NUCLIDE DATA---- Undiluted-I I- ---- Diluted -----I Average Percent Average Percent Nuclide uCi uCi/ml of 5*ECC uCi/ml of 5*EC E. 1-22 94 of 180 Table 3.3-1 Maximum Dose Resulting from Direct Radiation Zion Station 2012 2012 40cfr190 evaluation of Dose From container ESUU # 500031 Survey's indicate 40' Sealand was moved between 9-12 to 9-24 of 2012 The first working day after 9-12-12 was 9-13-12 and dose will be calculated as of this date since Survey on 9-24-12 does not indicate the survey was performed when the sealand was moved only what the current survey results are.Days from 9-12-12 to 12-31-12 12/31/12 .09/13/12d 109 days ,Exposure rate based on microshield 8.00E-03.mR/hr.

" At real person location on beach area East of RRA 258' From sealand.,Occupancy factor based on TSD #13-' 1200: h rs/y (1200hrs/8760hrs) 8.OOE-03!mRx 0.960mRemx 24,hrx 109 1 daysx 1200'hrs=,hr. mR ;day 8760 hrs 2.75E+00 mrem E. 1 -23 95 of 180 Table 3.4-1 ZION STATION 2012 Unit I 10CFR20 Compliance Assessment

1. IOCFR 20.1301 (a) (1) Compliance Total Effective Dose Equivalent 10 CFR 20.1301 (a) (]) limit% of the limit 2. Compliance Summary IOCFR20 Ist Qtr. 2 nd Qtr. 3rd DE 1.68E-05 1.81E-05 1.1.38E+00 mrem/vear 100 mrem/year 1.38E-02'Qtr.15E-05 4 th Qtr 1.38E+00% of Limit 1.38E-02 TE E. 1 -24 96 of 180 Table 3.4-1 (cont'd)ZION STATION 2012 Unit 2 1OCFR20 Compliance Assessment I.IOCFR 20.1301 (a) (1) Compliance Total Effective Dose Equivalent 10 CFR 20.1301 (a) (1) limit% of the limit 1.38E+00 mrem/year 100 mrem/year 1.38E-02 2. Compliance Summary IOCFR20 1st Qtr. 2 Qtr. 3rd Qtr.TEDE 1.68E-05 1.81E-05 1.15E-05 4h Qtr 1.38E+00% of Limit 1.38E-02 E. 1 -25 97 of 180 Table 3.5-1 Doses Resulting from Airborne Releases The following are the maximum annual calculated cumulative offsite doses resulting from Zion Station airborne releases.Unit 1: Dose Maximum Value Sector Affected gamma air (1) O.OOE+00 mrad beta air (2) O.OOE+00 mrad whole body (3) 6.80E-05 mrem East skin (4) 6.80E-05 mrem East organ ")(child liver) 6.80E-05 mrem East Unit 2: Dose Maximum Value Sector Affected gamma air (1) 0.OOE+00 mrad beta air (2) 0.OOE+00 mrad whole body (3) 6.80E-05 mrem East skin (4) 6.80E-05 mrem East organ (5) (child liver) 6.80E-05 mrem East (1) Gamma Air Dose -GASPAR II, NUREG-0597 (2) Beta Air Dose -GASPAR II, NUREG-0597 (3) Whole Body Dose -GASPAR II, NUREG-0597 (4) Skin Dose -GASPAR II, NUREG-0597 (5) Inhalation and Food Pathways Dose -GASPAR II, NUREG-0597 E. 1 -26 98 of 180 APPENDIX F METEOROLOGICAL DATA 99 of 180 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 5 0 0 0 0 6 0 0 0 0 1 15 1 0 4 0 0 0 0 0 0 0 0 0 0 20 0 0 0 0 3 0 2 2 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 3 4 0 1 2 0 0 0 0 0 1 0 12 0 10 0 7 0 0 9 16 0 0 0 0 0 0 0 1 0 0 0 0 0 3 0 0 0 8 0 0 Total 4 54 26 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: 5 100 of 180 F-I Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Moderately Unstable -250Ft-33Ft Winds Measured at 35 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 2 5 1 0 0 1 0 1 1 2 1 0 0 8-12 13-18 19-24 > 24 0 0 0 0 2 0 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 4 2 0 3 2 2 0 4 0 0 0 6 4 0 0 11 9 0 0 6 2 0 0 0 0 0 0 0 0 0 0 Total 0 3 1 1 2 5 1 1 0 7.7 5 11 22 9 0 0 Total 0 15 35 21 4 0 75 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 5 101 of 180 F-2 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Slightly Unstable -25OFt-33Ft Delta-T (F)Winds Measured at 35 Feet wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 1 1 3 2 0 1 0 2 5 2 6 0 1 0 8-12 13-18 19-24 > 24 1 0 0 0 1 2 0 0 2 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 1 0 0 0 5 3 4 0 7 5 1 0 10 3 0 0 9 3 0 0 11 2 0 0 5 2 0 0 0 0 0 0 0 0 0 0 Total 1 5 7 1 2 3 3 2 2 12 15 18 14 19 7 1 0 Total 0 31 55 21 5 0 112 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 5 102 of 180 F-3 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Neutral -250Ft-33Ft Delta-T Winds Measured at 35 Feet (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 11 19 8 5 6 4 8 6 21 26 22 32 38 52 33 19 0 12 13 27 17 9 3 8 14 32 26 38 42 63 49 37 13 0 10 22 7 3 6 2 4 29 14 18 21 29 36 24 34 13 0 2 0 0 0 0 0 0 25 0 16 2 0 0 2 0 0 0 47 37 57 43 27 22 10 23 84 68 90 86 105 144 131 104 47 0 Total 38 310 403 272 8 1078 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 8 Hours of missing stability measurements in all stability classes: 5 103 of 180 F-4 Stability Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Zion Nuclear Station Period of Record: January -March 2012 Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)1-3 4-7 3 4 3 2 3 4 0 3 6 12 5 4 12 11 4 4 1 12 15 7 6 4 1 5 3 14 11 29 35 55 12 11 5 0 8-12 13-18 19-24 > 24 10 0 0 0 10 0 0 0 2 0 0 0 3 0 0 0 1 0 0 0 3 3 0 0 8 0 0 0 11 1 0 0 17 1 0 0 11 3 0 0 20 9 0 0 32 3 0 0 28 4 0 0 6 0 0 0 3 1 0 0 1 0 0 0 0 0 0 0 Total 25 29 12 11 8 11 13 18 38 37 63 74 99 29 19 10 1 Total 81 225 166 25 0 0 497 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 5 104 of 180 F-5 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 2 1 0 0 1 1 0 1 3 3 8 8 10 3 1 2 0 6 5 1 1 1 0 1 1 19 12 3 6 7 8 1 0 0 8-12 13-18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 18 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 8 6 1 1 2 1 1 4 40 15 11 14 17 11 2 2 0 Total 44 72 19 1 0 0 136 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 1 stability class: 0 all stability classes: 5 105 of 180 F-6 Zion Nuclear Station Stability Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Period of Record: January -March 2012 Class -Extremely Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)1-3 0 1 2 4-7 8-12 13-18 19-24 > 24 Total 3 4 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 5 2 0 0 1 2 0 1 0 3 5 10 0 0 1 0 16 0 108 0 14 7 57 41 7 2 1 7 0 0 5 10 0 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 15 2 3 5 0 0 1 0 0 0 0 7 3 1 1 0 Total 36 93 52 3 0 184 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 1 stability class: 0 all stability classes: 5 106 of 180 F-7 Zion Nuclear Station Stability Wind Directior Period of Record: January -March 2012 Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)n 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 5 NNE 0 0 0 2 2 0 0 0 0 8 NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 1 0 7 10 0 19 0 0 0 2 1 0 0 0 0 0 0 5 6 1 0 0 0 2 0 0 0 2 1 1 0 0 0 0 1 1 2 0 2 2 0 0 1 8 2 13 2 4 8 11 0 21 6 0 0 1 0 0 0 0 0 7 0 0 Total 0 1 16 42 22 6 87 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 5 107 of 180 F-8 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 3 0 0 0 0 0 0 0 0 0 0 0 8-12 13-18 0 0 2 2 0 0 0 1 1 0 2 0 1 1 0 0 0 0 1 1 1 1 3 2 3 2 5 10 1 7 0 0 0 0 19-24 > 24 Total 0 4 1 1 1 5 2 0 0 6 7 5 8 24 11 0 0 Total 0 4 20 27 15 9 75 Hours of calm in Hours of missing Hours of missing this stability class: 0 wind measurements in this stability class: 0 stability measurements in all stability classes: 5 108 of 180 F-9 Zion Nuclear Station Period of Record: January -March 2012 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 N 0 0 1 0 0 0 NNE 0 1 2 2 0 2 NE 0 4 0 1 0 0 ENE 0 2 0 0 0 0 E 0 0 1 0 0 0 ESE 0 1 2 0 0 0 SE 0 0 2 0 1 0 SSE 0 0 1 1 0 0 S 0 0 1 1 0 0 SSW 0 0 4 1 2 5 SW 0 0 5 3 1 3 WSW 0 0 9 5 1 4 W 0 0 8 3 2 1 WNW 0 0 7 8 5 0 NW 0 1 4 2 2 0 NNW 0 0 0 0 0 0 variable 0 0 0 0 0 0 Total 1 7 5 2 1 3 3 2 2 12 12 19 14 20 9 0 0 Total 0 9 47 27 14 15 112 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 5 109 of 180 F-10 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Neutral -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 2 1 0 0 1 2 0 0 2 0 0 1 0 1 0 0 0 4 9 5 3 1 3 5 6 3 6 3 8 11 9 5 8 0 8-12 13-18 19-24 > 24 4 9 11 3 21 14 11 13 9 13 11 2 12 12 1 0 3 7 4 0 5 3 2 2 6 4 8 3 4 14 23 32 15 21 23 3 17 18 9 29 30 26 20 6 25 28 28 9 27 40 49 10 42 36 29 16 23 32 45 13 16 20 13 3 0 0 0 0 Total 33 69 40 28 16 17 26 79 67 79 85 99 137 133 118 60 0 Total 10 89 259 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 297 287 144 1086 0 stability class: 0 all stability classes: 5 110 of 180 F-I I Stability Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Zion Nuclear Station Period of Record: January -March 2012 Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)1-3 4-7 1 0 3 1 2 0 1 2 1 0 1 1 1 0 0 0 0 3 6 2 4 6 3 2 4 5 6 5 2 1 5 5 3 0 8-12 13-18 19-24 > 24 3 14 1 0 11 11 4 0 5 1 2 0 2 2 0 0 1 4 2 5 6 3 8 13 19 13 3 3 0 1 1 9 9 3 22 35 61 17 12 7 0 5 3 9 4 9 23 16 17 6 2 0 Total 22 32 13 9 12 17 12 30 25 22 60 68 99 41 22 13 0 Total 14 62 101 208 101 11 497 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 5 III of 180 F-12 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 2 0 0 0 2 0 1 0 0 0 1 0 0 0 0 0 0 3 1 2 3 2 1 1 5 1 0 0 3 0 1 3 0 0 0 0 0 0 0 1 10 8 0 0 0 0 0 0 0 0 6 6 3 5 3 5 7 24 20 13 10 7 8 7 8 5 0 Total 6 26 40 45 19 1 137 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 5 112 of 180 F-13 Zion Nuclear Station Period of Record: January -March 2012 Stability Class -Extremely Stable -25OFt-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 1 0 2 1 1 0 1 0 1 0 0 0 1 0 0 0 0 2 0 2 2 1 1 0 0 1 0 1 0 1 0 2 3 0 8-12 13-18 19-24 > 24 0 0 0 0 2 0 0 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 0 0 1 13 18 5 10 23 18 2 12 23 5 0 2 4 0 0 1 0 0 0 0 0 0 0 1 0 0 0 3 3 0 0 4 0 0 0 Total 3 2 8 3 2 1 8 37 55 40 7 1 2 1 8 7 0 0 0 Total 8 16 41 72 41 7 185 Hours of calm in this Hours of missing wind stability class: measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 5 113 of 180 F-14 Zion Nuclear Station Period of Record: April June 2012 Stability Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 0 2 0 0 0 4 5 51 19 3 16 2 13 7 3 9 3 0 0 0 0 0 0 75 0 22 0 15 0 10 0 20 0 11 0 11 0 10 0 0 0 3 1 1 0 0 0 0 3 1 7 6 0 0 13 1 22 1 0 0 2 4 0 11 8 3 7 2 0 0 61 0 19 0 21 0 27 0 10 0 0 0 6 0 0 0 0 41 148 0 251 Hours of calm in Hours of missing Hours of missing this stability class: 0 wind measurements in this stability class: 0 stability measurements in all stability classes: 2 114 of 180 F-15 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 5 4 2 2 2 1 0 0 0 1 1 0 3 1 0 0 2 i1 0 1 0 1 0 1 3 3 5 1 5 3 5 0 0 13-18 2 0 1 1 0 0 0 0 0 2 4 0 3 2 0 0 0 19-24 0 0 0 0 0 0 0 0 0 0 2 1 0 0 0 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 6 16 5 4 2 3 1 1 3 5 12 3 8 8 6 0 0 Total 0 24 41 15 3 0 83 Hours of calm in this Hours of missing wind stability class: measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 2 115 of 180 F-16 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Slightly Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 8 12 2 2 4 4 3 0 0 3 2 2 3 2 1 0 8-12 13-18 19-24 > 24 8 7 0 0 19 3 0 0 4 0 0 0 1 3 0 0 1 0 0 0 0 0 0 0 0 0 0 0 6 0 0 0 2 0 0 0 2 5 1 0 5 3 3 0 3 0 1 0 2 3 1 0 1 1 0 0 6 1 0 0 2 0 0 0 0 0 0 0 Total 16 30 16 6 3 4 4 9 2 8 14 6 8 5 9 3 0 Total 0 49 62 26 6 0 143 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 2 116 of 180 F-17 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Neutral -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 2 3 5 2 2 5 1 2 1 0 0 0 2 1 0 2 0 12 27 17 13 11 19 18 21 12 7 9 6 13 9 9 9 0 45 51 15 15 10 6 2 15 19 20 32 4 14 20 11 15 0 13-18 19-24 > 24 22 6 0 27 0 0 2 0 0 6 0 0 9 1 0 4 0 0 0 0 0 6 0 0 2 0 0 10 0 0 13 4 0 1 0 0 2 0 0 0 0 0 1 0 0 1 0 0 0 0 0 Total 87 108 39 36 33 34 21 44 34 37 58 11 31 30 21 27 0 Total 28 212 294 106 11 0 651 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: 2 117 of 180 F-18 Stability wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Zion Nuclear Station Period of Record: April -June 2012 Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 3 36 16 4 0 0 6 33 18 2 0 0 3 8 5 0 0 0 3 7 2 0 0 0 4 14 2 3 0 0 3 13 3 0 0 0 7 15 2 0 0 0 6 24 27 2 1 0 4 37 32 5 1 0 12 25 13 1 0 0 6 12 6 1 0 0 2 14 3 0 0 0 1 25 8 1 0 0 4 19 3 0 0 0 3 18 7 0 0 0 5 15 3 0 0 0 1 0 0 0 0 0 Total 59 59 16 12 23 19 24 60 79 51 25 19 35 26 28 23 1 Total 73 315 150 19 2 0 559 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: 2 118 of 180 F-19 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 4 2 2 2 4 4 1 4 7 I1 10 6 6 8 3 0 3 5 5 3 6 6 10 12 30 29 12 12 7 8 10 1 0 8-12 13-18 0 0 0 3 0 1 3 32 20 2 1 1 0 1 0 0 0 64 19-24 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 7 7 7 8 11 14 53 61 42 24 23 13 15 18 4 0 Total 85 159 9 0 318 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: 2 119 of 180 F-20 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Extremely Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24 > 24 4 1 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 2 0 0 0 0 3 2 2 0 0 0 3 3 6 0 0 0 5 27 22 0 0 0 13 10 0 0 0 0 5 9 0 0 0 0 13 6 0 0 0 0 12 10 0 0 0 0 2 4 0 0 0 0 3 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 Total 5 0 2 1 2 2 7 12 54 23 14 19 22 6 3 4 0 176 0 2 120 of 180 67 76 33 0 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sta Hours of missing stability measurements in all bility class: stability classes F-21 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Extremely Unstable -250Ft-33Ft Winds Measured at 250 Feet Delta-T (F)wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 N 0 0 1 3 1 0 NNE 0 1 29 40 10 1 NE 0 0 12 2 1 0 ENE 0 4 6 6 0 0 E 0 4 6 3 1 0 ESE 0 2 14 0 0 0 SE 0 2 7 4 0 0 SSE 0 0 0 0 0 0 S 0 0 0 1 0 0 SSW 0 0 0 1 3 2 SW 0 0 1 8 8 1 WSW 0 0 2 7 10 1 W 0 0 3 18 3 4 WNW 0 0 2 1 4 4 NW 0 0 1 4 2 0 NNW 0 0 0 0 0 0 Variable 0 0 0 0 0 0 Total 5 81 15 16 14 16 13 0 1 6 18 20 28 11 7 0 0 Total 0 13 84 98 43 13 251 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabili Hours of missing stability measurements in all sta ty class: bility cl 0 asses: 2 121 of 180 F-22 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 1 0 0 0 0 0 0 0 0 0 0 8-12 13-18 19-24 > 24 1 3 1 1 11 4 1 0 4 0 1 0 0 2 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 1 0 0 3 0 0 0 2 1 0 0 3 5 1 1 4 0 2 3 1 1 2 5 1 2 1 3 4 0 0 0 0 0 0 0 0 0 0 Total 6 16 6 2 2 4 1 1 3 3 9 7 7 9 7 0 0 Total 0 5 31 27 13 7 83 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 2 122 of 180 F-23 Zion Nuclear Station Period of Record: April June 2012 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 1 0 7 7 3 18 NNE 0 0 22 7 2 1 32 NE 0 3 8 1 0 0 12 ENE 0 1 1 1 3 0 6 E 0 1 1 0 1 0 3 ESE 0 1 3 1 0 0 5 SE 0 2 4 1 0 0 7 SSE 0 1 0 4 1 0 6 S 0 0 0 0 0 0 0 SSW 0 0 0 2 4 2 8 SW 0 1 1 5 3 4 14 WSW 0 1 1 2 0 1 5 W 0 1 2 2 1 4 10 WNW 0 1 2 1 0 1 5 NW 0 2 1 5 2 0 10 NNW 0 0 0 2 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 16 46 41 24 16 143 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: 2 123 of 180 F-24 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Neutral -25OFt-33Ft Delta-T (F)Winds Measured at 250 Feet wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 1 1 2 1 1 0 1 0 0 0 0 0 0 0 0 0 0 4 7 5 6 6 7 8 3 3 4 1 1 4 3 2 3 0 8-12 13-18 8 27 24 37 9 13 10 16 11 9 8 8 17 9 14 15 3 12 4 8 7 25 4 10 4 12 7 17 5 16 7 14 0 0 19-24 39 35 4 8 7 6 0 5 5 12 18 1 7 5 3 0 0> 24 Total 14 3 0 0 2 0 0 0 1 3 8 0 1 0 0 0 0 93 107 33 41 36 29 35 37 24 31 59 16 28 32 26 24 0 Total 7 67 142 248 155 32 651 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: 2 124 of 180 F-25 Stability wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Zion Nuclear Station Period of Record: April -June 2012 Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)1-3 4-7 0 0 0 2 0 1 1 1 1 0 0 1 0 0 0 0 0 2 2 3 3 8 4 4 10 2 6 0 4 0 2 2 1 0 8-12 13-18 19-24 > 24 9 31 9 1 11 33 6 1 14 7 4 0 16 2 4 0 9 1 5 0 12 6 6 0 13 12 6 0 28 33 6 3 10 26 9 3 3 20 1 0 7 17 1 1 4 19 0 0 3 11 6 1 7 24 2 0 3 18 1 0 5 10 0 0 0 0 0 0 Total 52 53 28 27 23 29 36 81 51 30 26 28 21 35 24 16 0 Total 7 53 154 270 66 10 560 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: 2 125 of 180 F-26 Zion Nuclear Station Period of Record: April -June 2012 Stability Class -Moderately Stable 250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 0 4 4 1 0 4 3 2 0 0 4 2 0 1 4 2 0 6 7 5 0 3 4 6 1 4 4 8 2 1 20 19 0 6 15 28 0 1 7 21 0 0 3 12 0 2 2 8 0 0 4 0 0 2 3 2 0 0 2 7 0 0 4 5 0 0 0 0 19-24 0 0 0 4 1 1 9 9 12 1 3 5 4 0 2 0 0> 24 0 0 0 0 1 1 4 4 2 0 0 0 0 0 0 0 Total 9 9 6 11 20 15 30 55 63 30 18 17 8 7 11 9 0 Total 3 34 90 128 51 12 318 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 2 126 of 180 F-27 Zion Nuclear Station Period of Record: April -June 2012 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 NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 1 0 0 1 2 26 31 6 6 0 1 2 0 0 2 0 2 8 2 6 4 13 55 43 12 9 3 8 3 6 0 Total 7 26 36 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 76 25 6 176 0 stability class: 0 all stability classes: 2 127 of 180 F-28 Zion Nuclear Station Stability Wind Directio.N NNE NE Period of Record: July -September 2012 Class -Extremely Unstable -25OFt-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)n 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 1 2 6 33 ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 29 39 0 21 12 1 21 9 0 16 4 0 20 13 5 8 1 0 0 0 0 0 0 0 0 0 0 0 0 1 22 2 1 0 3 4 9 9 20 3 13 0 8 2 0 0 0 0 47 0 69 0 33 0 31 0 20 0 33 0 23 0 5 0 3 0 22 0 30 0 16 0 13 0 18 0 2 0 0 0 373 0 2 9 2 6 12 0 0 2 0 0 0 0 28 0 0 0 0 0 0 0 1 141 203 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 19 128 of 180 F-29 Zion Nuclear Station Period of Record: July -September 2012 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 1 0 7 10 3 6 2 5 5 2 1 3 7 2 5 4 0 0 3 1 4 2 0 0 0 12 0 5 3 6 3 1 8 3 0 1 19-24 > 24 0 0 0 0 0 Total 5 9 15 6 6 2 5 19 3 7 7 13 5 6 12 4 0 Total 3 62 51 8 0 0 124 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: 19 129 of 180 F-30 Period Stability Class -Wind Zion Nuclear Station of Record: July -September 2012 Slightly Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 0 2 7 4 0 0 0 7 5 1 0 0 0 12 12 2 0 0 1 9 5 0 0 0 0 9 2 0 0 0 0 2 0 0 0 0 0 7 1 0 0 0 1 8 30 3 0 0 0 7 6 0 0 0 1 7 8 2 0 0 0 4 4 4 0 0 1 7 6 0 0 0 1 9 1 0 0 0 1 3 4 0 0 0 1 5 2 0 0 0 1 1 4 0 0 0 0 0 0 0 0 0 Total 13 13 26 15 11 2 8 42 13 18 12 14 11 8 8 6 0 Total 8 99 97 16 0 0 220 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 19 130 of 180 F-31 Zion Nuclear Station Period of Record: July -September 2012 Stability Class -Neutral -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 2 3 4 2 6 5 6 2 3 5 9 3 1 5 5 1 0 9 20 18 16 14 8 16 19 35 9 17 16 11 26 20 12 1 8-12 24 20 14 9 3 0 3 33 12 9 18 17 12 4 19 14 0 13-18 5 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 40 44 38 32 25 13 25 58 50 28 46 36 24 37 45 27 1 Total 62 267 211 29 0 0 569 Hours of calm in Hours of missing this stability class: wind measurements in this 2 stability class: 0 all stability classes: Hours of missing stability measurements in 19 131 of 180 F-32 Stability Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total Zion Nuclear Station Period of Record: July -September 2012 Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)1-3 6 5 7 6 7 1 7 5 5 10 9 12 10 11 11 5 0 117 4-7 19 19 12 3 4 3 2 2 36 66 30 46 23 21 23 15 0 324 8-12 13-18 19-24 > 24 1 0 0 0 8 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 ii 0 0 0 3 0 0 0 6 1 0 0 17 0 0 0 5 0 0 0 5 0 0 0 1 1 0 0 5 0 0 0 0 0 0 0 0 0 0 0 Total 26 32 20 9 11 4 13 18 44 83 56 63 38 34 39 20 0 67 2 0 0 510 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 4 stability class: 0 all stability classes: 19 132 of 180 F-33 Period Stability Class -Wind Direction 1-3 N 2 NNE 2 NE 2 ENE 1 E 1 ESE 1 SE 0 SSE 1 S 4 SSW 12 SW 13 WSW 19 W 35 WNW 10 NW 4 NNW 4 Variable 0 Zion Nuclear Station of Record: July -September 2012 Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)4-7 1 1 0 0 1 1 1 1 1i 19 9 13 22 15 9 2 0 8-12 13-18 19-24 > 24 Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 3 2 1 2 2 1 2 15 31 22 32 57 25 13 6 0 Total 111 106 0 0 0 0 217 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 19 133 of 180 F-34 Zion Nuclear Station Period of Record: July September 2012 Stability Class -Extremely Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 0 0 4 2 23 22 5 1 1 0 0 0 0 0 0 0 0 0 0 1 9 27 43 20 11 1 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 0 0 0 0 0 0 0 0 0 5 11 50 65 25 12 2 0 Total 58 112 0 0 0 0 170 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 19 Zion Nuclear Station 134 of 180 F-35 Period of Record: July -September 2012 Stability Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 1 2 1 4 8 3 23 19 7 2 54 4 43 15 2 0 64 4 23 6 2 0 35 10 12 4 0 0 26 9 11 1 0 0 21 0 29 8 0 0 37 0 13 6 0 0 19 0 1 2 1 0 4 0 0 3 0 1 4 0 3 2 8 0 13 0 12 15 2 0 29 0 9 15 0 0 24 0 3 9 0 0 12 0 9 8 3 0 20 0 1 2 0 0 3 0 0 0 0 0 0 Total 0 30 193 117 26 7 373 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: 19 135 of 180 F-36 Zion Nuclear Station Period of Record: July -September 2012 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE 1-3 0 0 0 1 0 0 4-7 8-12 13-18 19-24 > 24 Total 1 3 6 3 6 1 0 4 1 3 1 0 2 3 1 1 1 4 0 4 0 11 0 12 0 0 0 0 0 0 0 0 0 0 8 7 SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 0 0 0 0 0 1 12 1 0 1 2 2 2 1 2 3 5 4 2 5 0 0 3 0 2 1 4 " 1 2 2 3 2.7 2 0 0 1 2 1 0 0 0 0 1 0 0 1 0 0 0 0 6 1 17 3 7 7 9 9 6 0 13 1 0 0 0 4 0 Total 1 32 47 30 12 2 124 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 19 136 of 180 F-37 Zion Nuclear Station Period of Record: July -September 2012 Stability Class -Slightly Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 2 5 3 2 1 1 1 2 1 2 3 3 0 3 1 0 8-12 13-18 19-24 > 24 1 6 4 1 7 4 2 1 6 5 8 1 4 8 0 0 3 2 0 0 2 0 0 0 6 3 0 0 25 11 1 0 5 5 1 0 6 6 2 1 5 3 3 0 3 6 1 0 8 3 1 0 3 3 0 0 4 3 0 0 1 4 0 0 0 0 0 0 Total 13 16 25 15 7 3 10 39 13 16 13 13 15 6 10 6 0 Total 1 31 89 72 23 4 220 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 19 137 of 180 F-38 Zion Nuclear Station Period of Record: July -September 2012 Stability Class -Neutral -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 1 7 4 19 15 0 0 2 10 23 3 0 0 4 10 19 4 1 0 7 10 5 9 3 3 5 13 2 5 0 1 9 6 2 0 0 1 12 8 6 0 0 1 7 28 16 4 0 1 3 25 16 0 0 0 5 6 10 1 4 2 6 9 7 11 0 0 6 8 18 7 0 0 3 9 21 1 0 0 4 7 14 1 1 1 3 9 28 2 3 0 2 5 26 0 0 0 1 0 0 0 0 Total 46 38 38 34 28 18 27 56 45 26 35 39 34 27 46 33 1 Total 11 86 167 232 Hours of calm in this stability class: 0 Hours of missing wind measurements in this s Hours of missing stability measurements in a tability 11 stabil 63 12 571 class: 0 ity classes: 19 138 of 180 F-39 Zion Nuclear Station Period of Record: July -September 2012 Stability Wind Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 10 15 5 4 10 2 8 8 12 13 12 9 4 8 15 4 0 11 20 5 2 1 1 1 8 36 35 36 42 30 13 22 8 0 26 41 16 15 22 10 18 23 54 56 59 60 38 22 39 15 0 Total 9 78 139 271 16 1 514 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 19 139 of 180 F-40 Zion Nuclear Station Period of Record: July -September 2012 Stability Class -Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 2 2 1 1 0 1 0 2 1 2 0 1 1 1 3 1 0 0 4 0 1 4 2 1 3 5 5 6 2 4 1 3 0 0 8-12 13-18 2 2 5 1 1 0 2 0 1 1 1 2 1 0 5 1 9 13 12 13 6 6 4 10 1 13 5 4 7 11 4 3 0 0 19-24 0 0 0 0 0 0 0 0 0 1 2 2 4 1 1 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 6 12 2 4 6 6 2 11 28 33 20 19 23 12 25 8 0 Total 19 41 66 80 11 0 217 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 19 140 of 180 F-41 Zion Nuclear Station Period of Record: July -September 2012 Stability Class -Extremely Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 1 0 0 2 1 3 0 2 1 1 0 0 1 1 1 2 0 3 3 0 0 0 0 1 1 0 5 8 1 5 4 3 3 0 8-12 13-18 6 5 6 0 1 0 1 0 0 0 0 0 0 0 1 0 1 0 2 3 5 10 6 17 8 19 5 2 5 3 1 2 0 0 19-24 0 0 0 0 0 0 0 0 0 0 2 4 1 1 0 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 15 9 1 3 1 3 1 4 2 11 25 28 34 13 12 8 0 Total 16 37 48 61 8 0 170 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: 19 141 of 180 F-42 Zion Nuclear Station Stability Wind Directio: N Period of Record: October -December 2012 Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)n 1-3 4-7 8-12 13-18 19-24 > 24 Total NNE NE ENE 0 0 0 0 1 6 2 1 22 E ESE SE SSE S 0 0 0 0 0 0 0 0 0 4 2 1 1 4 2 0 0 4 3 0 0 0 8 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 25 0 0 11 7 9 5 1 1 4 0 5 SSW SW WSW 4 14 7 W WNW NW NNW Variable 0 0 0 0 6 6 4 2 0 0 4 6 7 7 7 0 7 4 3 0 18 0 15 0 14 0 15 0 12 0 0 0 0 9 8 0 0 Total 0 34 84 41 0 159 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: 2 142 of 180 F-43 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 1 0 1 4 0 3 1 2 2 2 2 2 0 wind Speed (in mph)8-12 13-18 0 1 4 0 0 0 2 0 1 0 1 0 0 0 5 1 3 2 3 3 5 2 1 2 2 0 2 2 6 0 1 2 0 0 19-24 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 1 6 2 4 2 1 1 i0 5 9 9 5 4 7 8 5 0 Total 0 26 36 15 2 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sta Hours of missing stability measurements in all bility class: stability class 0 79 0 es: 2 143 of 180 F-44 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Slightly Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 1 0 0 0 0 3 2 0 1 0 0 0 0 1 1 0 0 2 2 4 2 5 3 3 7 6 3 2 2 5 1 7 4 0 8-12 13-18 19-24 > 24 6 1 0 0 7 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 5 2 1 0 5 1 0 0 5 10 0 0 7 3 0 0 5 1 0 0 8 2 0 0 7 2 0 0 9 1 0 0 6 3 0 0 0 0 0 0 Total 10 9 6 2 6 6 5 15 13 18 12 8 15 11 18 13 0 Total 9 58 72 27 0 167 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 2 144 of 180 F-45 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Neutral -25OFt-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 5 4 1 2 1 3 0 2 4 7 12 12 11 10 1 0 13 15 16 11 9 11 9 11 19 42 22 17 27 36 42 32 0 15 17 11 11 10 3 2 20 33 40 50 22 46 37 44 52 0 8 11 9 5 9 15 1 17 3 21 33 1 13 9 19 21 0 36 48 42 29 36 33 15 55 60 113 112 52 98 93 123 106 0 Total 75 332 413 195 36 0 1051 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: 2 145 of 180 F-46 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE 1-3 4-7 8-12 13-18 19-24 > 24 Total 6 13 3 13 5 2 0 0 0 3 2 3 3 4 1 2 3 2 0 0 0 0 0 0 0 0 2 2 10 8 S 8 67 22 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 SSW SW WSW W 4 4 6 5 6 0 24 0 18 9 47 26 10 26 12 2 8 15 2 7 32 16 7 32 10 WNW NW NNW Variable 7 48 2 26 1 6 0 0 0 0 0 0 0 4 0 20 0 99 0 82 0 50 0 25 0 55 0 49 0 56 0 34 0 0 0 0 Total 84 339 110 0 537 Hours of calm in Hours of missing Hours of missing this stability class: 1 wind measurements in this stabili stability measurements in all sta ty class: bility cl 0 asses: 2 146 of 180 F-47 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 0 0 2 2 28 8 15 6 5 0 18 3 0 1 1 0 1 0 1 4 6 45 14 21 10 9 2 21 4 0 Total 31 87 21 this stability class: 0 0 140 Hours of calm in Hours of missing 1 wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 147 of 180 F-48 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Extremely Stable 250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 0 0 0 1 4 1 12 6 1 1 1 1 0 1 1 0 0 0 0 0 3 ii 5 16 14 5 7 6 1 0 Total 35 28 7 0 0 0 70 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 148 of 180 F-49 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 14 3 2 0 0 6 1 1 3 2 6 11 7 2 2 0 1 11 1 2 0 0 0 3 5 2 6 0 0 5 6 6 0 7 28 7 4 1 1 6 6 6 19 13 9 21 13 8 10 0 Total 0 14 60 48 26 11 159 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 149 of 180 F-50 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 Total 0 2 0 2 1 0 1 0 4 1 4 0 0 2 6 1 0 0 0 0 1 0 0 1 6 2 4 0 0 0 0 1 0 2 2 1 1 0 0 0 0 0 0 0 0 2 0 2 2 6 8 6 1 10 0 5 5 3 6 0 10 2 0 5 0 Total 0 13 26 24 7 9 79 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabil ity class: 0 Hours of missing stability measurements in all stability classes: 2 150 of 180 F-51 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Slightly Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 1 1 1 0 0 0 0 0 0 0 0 0 0 0 3 4 3 2 2 0 1 2 10 5 3 1 3 1 7 4 0 12 10 6 4 5 6 5 9 16 14 16 5 17 12 20 10 0 Total 3 35 51 51 18 9 167 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 151 of 180 F-52 Zion Nuclear Station Period of Record: October -December 2012 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 NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 2 3 4 3 4 10 4 1 1 6 8 7 9 10 14 0 0 12 12 15 16 4 5 13 9 18 25 23 10 20 21 27 38 0 18 15 11 8 11 1 3 13 26 33 38 21 45 29 43 57 0 372 12 4 2 2 7 14 1 11 16 21 39 6 15 18 24 20 0 212 2 8 9 3 6 6 3 7 2 11 10 0 9 1 19 5 0 46 43 42 33 33 36 25 42 63 97 118 44 99 79 128 120 0 9 86 268 101 1048 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: 2 152 of 180 F-53 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Slightly Stable -2SOFt-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 NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 16 10 6 3 3 4 4 12 16 15 19 10 7 11 8 4 0 10 4 1 0 0 1 2 16 40 43 28 9 24 32 32 40 0 3 0 0 0 0 0 0 5 13 9 9 0 0 1 4 2 0 46 33 18 12 6 7 11 8 39 72 70 64 22 35 45 45 49 0 Total 7 53 148 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 282 0 536 0 stability class: 2 all stability classes: 2 153 of 180 F-54 Zion Nuclear Station Period of Record: October -December 2012 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 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 5 1 0 0 0 0 1 8 25 10 7 8 4 3 0 5 0 19-24 > 24 Total 0 0 12 0 0 6 0 0 1 0 0 2 0 0 0 0 0 1 0 0 2 1 0 13 8 0 43 3 0 20 3 0 12 0 0 11 0 0 7 0 0 5 0 0 0 0 0 6 0 0 0 15 0 141 Total 8 40 77 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: 2 154 of 180 F-55 Zion Nuclear Station Period of Record: October -December 2012 Stability Class -Extremely Stable 250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 4 2 2 1 3 0 0 11 2 0 8 6 11 0 23 0 10 3 0 2 0 0 0 7 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 Total 5 7 25 24 9 0 70 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabil Hours of missing stability measurements in all st ity class: 0 ability classes: 2 155 of 180 F-56 APPENDIX G ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)156 of 180 Docket No: 50-295 50-304 ZION NUCLEAR POWER STATION UNITS 1 and-2 Annual Radiological Groundwater Protection Program Report 1 January Through 31 December 2012 Prepared By Teledyne Brown Engineering Environmental Services ZIONSOLUTIONSLL Zion Nuclear Power Station Zion, IL 60099 May 2013 157 of 180 Table Of Contents I. Sum m ary and Conclusions

..............................................................................................

J I1. Introduction

.............................................................................................................

3 A. O bjectives of the RG PP ..................................................................................

3 B. Im plem entation of the Objectives

..................................................................

3 C. Program Description

.......................................................................................

4 D. Characteristics of Tritium (H-3) ......................................................................

4 Ill. Program Description

................................................................................................

5 A. Sam ple Analysis ............................................................................................

5 B. Data Interpretation

..........................................................................................

6 C. Background Analysis .....................................................................................

7 1. Background Concentrations of Tritium .................................................

8 A. Groundwater and Surface W ater Results ...................................................

10 B. Drinking W ater W ell Survey .........................................................................

11 C. Summary of Results -Inter-laboratory Comparison Program ......................

11 D. Leaks, Spills, and Releases .........................................................................

11 E. Trends ..........................................................................................................

11 F. Investigations

.................................................................................................

11 G .Actions Taken ..............................................................................................

11 158 of 180 Appendices Appendix A Tables Table A-1 Figures Figure A-1 Location and Direction Radiological Groundwater Protection Program -Sampling Locations and Distance, Zion Nuclear Power Station, 2012 Radiological Groundwater Protection Program Groundwater and Surface Water Locations of the Zion Nuclear Power Station, 2012 Appendix B Tables Table B-1.1 Table B-1.2 Table B-1.3 Table B-11.1 Table B-11.2 Data Tables Concentrations of Tritium, Strontium, Gross Alpha, and Gross Beta in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Concentrations of Iron-55 and Nickel-63 in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.159 of 180 I. Summary and Conclusions In 2006, Exelon instituted a comprehensive program to evaluate the impact of station operations on groundwater and surface water in the vicinity of Zion Nuclear Power Station. This is the seventh in a series of annual reports on the status of the Radiological Groundwater Protection Program (RGPP) conducted at Zion Nuclear Power Station. This report covers both groundwater and surface water samples, collected from the environment, on station property in 2012.During that time period, 348 analyses were performed on 48 samples from 12 locations.

Phase 1 of the monitoring was part of a comprehensive study initiated by Exelon to determine whether groundwater or surface water at and in the vicinity of Zion Nuclear Power Station had been adversely impacted by any releases of radionuclides.

Phase 1 was conducted by Conestoga Rovers and Associates (CRA) and the conclusions were made available to state and federal regulators as well as the public in station specific reports.Phase 2 of the RGPP was conducted by ZionSolutions (Exelon was responsible for the program up to 8/31/2010; ZionSolutions became the licensee on 9/1/2010, thus assuming responsibility for the RGPP) personnel to initiate follow up of Phase 1 and begin long-term monitoring at groundwater and surface water locations selected during Phase 1. All analytical results from Phase 2 monitoring are reported herein.In assessing all the data gathered for this report, it was concluded that the operation of Zion Nuclear Power Station had no adverse radiological impact on the environment, and there are no known active releases into the groundwater at Zion Nuclear Power Station.Gamma-emitting radionuclides were not detected at concentrations greater than their respective Lower Limits of Detection (LLDs) as specified in the Offsite Dose Calculation Manual (ODCM) in any of the groundwater or surface water samples.Strontium-90 was not detected in any of the samples analyzed in 2012.Tritium was not detected in any of the groundwater or surface water samples analyzed in 2012. In the case of tritium, ZionSolutions specified that it's laboratories achieve a lower limit of detection 10 times lower than that required by federal regulation.

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater samples during all four quarters of sampling in 2012. Gross Alpha (dissolved) was not detected in any of the groundwater locations.

Gross Alpha (suspended) was not detected in any of the groundwater locations.

Gross Beta (dissolved) was detected at all thirty-six groundwater 160 of 180 locations.

The concentrations ranged from 2.6 to 21.4 pCi/L. Gross Beta (suspended) was not detected in any of the groundwater locations.

Iron-55 and Nickel-63 analyses were performed in 2012 on 36 samples from 9 locations.

All results were less than their respective LLDs.-2-161 of 180 II. Introduction The Zion Nuclear Power Station (ZNPS), consisting of two 1,100 MWt pressurized water reactor was owned and operated by Exelon Corporation, is located in Zion, Illinois adjacent to Lake Michigan.

Unit No. 1 went critical in December 1973. Unit No. 2 went critical in September 1974. The plant permanently ceased operation in January of 1998 and has been permanently defueled.

The site is located in northeast Illinois on the western shore of Lake Michigan, approximately 50 miles north of Chicago, Illinois.This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Environmental Inc. (Midwest Labs) on samples collected in 2012.A. Objective of the RGPP The long-term objectives of the RGPP are as follows: 1. Identify suitable locations to monitor and evaluate potential impacts from station operations before significant radiological impact to the environment and potential drinking water sources.2. Understand the local hydrogeologic regime in the vicinity of the station and maintain up-to-date knowledge of flow patterns on the surface and shallow subsurface.

3. Perform routine water sampling and radiological analysis of water from selected locations.
4. Report new leaks, spills, or other detections with potential radiological significance to stakeholders in a timely manner.5. Regularly assess analytical results to identify adverse trends.6. Take necessary corrective actions to protect groundwater resources.

B. Implementation of the Objectives The objectives identified have been implemented at Zion Nuclear Power Station as discussed below: 1. Exelon and its consultant identified locations as described in the Phase 1 study. Phase 1 studies were conducted by Conestoga Rovers and Associates (CRA) and the results and conclusions were made available to state and federal regulators as well as the public in station specific reports.-3-162 of 180

2. The Zion Nuclear Power Station reports describe the local hydrogeologic regime. Periodically, the flow patterns on the surface and shallow subsurface are updated based on ongoing measurements.
3. Zion Nuclear Power Station will continue to perform routine sampling and radiological analysis of water from selected locations.
4. Zion Nuclear Power Station has implemented new procedures to identify and report new leaks, spills, or other detections with potential radiological significance in a timely manner.5. Zion Nuclear Power Station staff and consulting hydrogeologist assess analytical results on an ongoing basis to identify adverse trends.C. Program Description
1. Sample Collection Sample locations can be found in Table A-1 and Figures A-i, Appendix A.Groundwater and Surface Water Samples of water are collected, managed, transported and analyzed in accordance with approved procedures following EPA methods. Groundwater samples were collected.

Sample locations, sample collection frequencies and analytical frequencies are controlled in accordance with approved station procedures.

Contractor and/or station personnel are trained in the collection, preservation management, and shipment of samples, as well as in documentation of sampling events. Analytical laboratories are subject to internal quality assurance programs, industry cross-check programs, as well as nuclear industry audits. Station personnel review and evaluate all analytical data deliverables as data are received.Analytical data results are reviewed by both station personnel and an independent hydrogeologist for adverse trends or changes to hydrogeologic conditions.

D. Characteristics of Tritium (H-3)Tritium (chemical symbol H-3) is a radioactive isotope of hydrogen.

The-4-163 of 180 most common form of tritium is tritium oxide, which is also called "tritiated water". The chemical properties of tritium are essentially those of ordinary hydrogen.Tritiated water behaves the same as ordinary water in both the environment and the body. Tritium can be taken into the body by drinking water, breathing air, eating food, or absorption through skin. Once tritium enters the body, it disperses quickly and is uniformly distributed throughout the body. Tritium is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days. Within one month or so after ingestion, essentially all tritium is cleared. Organically bound tritium (tritium that is incorporated in organic compounds) can remain in the body for a longer period.Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules.

Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity, and in special production reactors, where the isotopes lithium-7 and/or boron-10 are activated to produce tritium. Like normal water, tritiated water is colorless and odorless.

Tritiated water behaves chemically and physically like non-tritiated water in the subsurface, and therefore tritiated water will travel at the same velocity as the average groundwater velocity.Tritium has a half-life of approximately 12.3 years. It decays spontaneously to helium-3 (3He). This radioactive decay releases a beta particle (low-energy electron).

The radioactive decay of tritium is the source of the health risk from exposure to tritium. Tritium is one of the least dangerous radionuclides because it emits very weak radiation and leaves the body relatively quickly. Since tritium is almost always found as water, it goes directly into soft tissues and organs. The associated dose to these tissues is generally uniform and is dependent on the water content of the specific tissue.Ill. Program Description A. Sample Analysis This section describes the general analytical methodologies used by TBE to analyze the environmental samples for radioactivity for the Zion Nuclear Power Station RGPP in 2012.In order to achieve the stated objectives, the current program includes the following analyses:-5-164 of 180

1. Concentrations of gamma emitters in groundwater and surface water.2. Concentrations of strontium in groundwater.
3. Concentrations of tritium in groundwater and surface water.4. Concentration of gross alpha and gross beta in groundwater.
5. Concentrations of Iron-55 in groundwater.
6. Concentrations of Nickel-63 in groundwater.

B. Data Interpretation The radiological data collected prior to Zion Nuclear Power Station becoming operational were used as a baseline with which these operational data were compared.

For the purpose of this report, Zion Nuclear Power Station was considered operational at initial criticality.

Several factors were important in the interpretation of the data: 1. Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is specified by federal regulation as a minimum sensitivity value that must be achieved routinely by the analytical parameter.

2. Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium in environmental samples is frequently on the order of 50% of the measurement value.Statistically, the exact value of a measurement is expressed as a range with a stated level of confidence.

The convention is to report results with a 95% level of confidence.

The uncertainty comes from calibration standards, sample volume or weight measurements, sampling uncertainty and other factors.ZionSolutions reports the uncertainty of a measurement created by statistical process (counting error) as well as all sources of error (Total Propagated Uncertainty or TPU). Each result has two values calculated.

ZionSolutions reports the TPU by following the result with plus or minus +/- the estimated sample standard deviation, as TPU, that is obtained by propagating all sources of analytical uncertainty in measurements. 165 of 180 Analytical uncertainties are reported at the 95% confidence level in this report for reporting consistency with the AREOR.C. Background Analysis A pre-operational Radiological Environmental Monitoring Program (pre-operational REMP) was conducted to establish background radioactivity levels prior to operation of the Station. The environmental media sampled and analyzed during the pre-operational REMP were atmospheric radiation, fall-out, domestic water, surface water, marine life, and foodstuffs.

The results of the monitoring were detailed in the report entitled, Environmental Radiological Monitoring for Zion Nuclear Power Station, Commonwealth Edison Company, Annual Report 1973, issued May 1974.The pre-operational REMP contained analytical results from samples collected from the surface water and groundwater.

Tritium levels in Lake Michigan water were studied in the vicinity of Zion Station throughout 1970. The concentration of tritium in the surface water samples from the Lake at Zion ranged from approximately 311 +/- 20 pCi/L to 374 +/- 34 pCi/L and averaged 340 pCi/L. There was no statistical difference in average tritium concentrations among the stations (eight stations from Kenosha to Waukegan).

Prior to 1998, surface water samples were collected at the following six locations along Lake Michigan:* Kenosha, Wisconsin (intake located 10 miles north of the station)* Lake County Public Water District (intake located 1.1 miles north of the Station)* Waukegan, Illinois (intake located 6 miles south of the Station)* North Chicago, Illinois (intake located 10 miles south of the Station)* Great Lakes NTS (intake located 13 miles south of the Station)* Lake Forest, Illinois (intake located 16.5 miles south of the Station)After 1998, surface water samples were collected at the following four locations along Lake Michigan:* Kenosha, Wisconsin (intake located 10 miles north of the station)* Lake County Public Water District (intake located 1.1 miles north of the Station)* Waukegan, Illinois (intake located 6 miles south of the Station)* Lake Forest, Illinois (intake located 16.5 miles south of the Station)-7-166 of 180 Lake Michigan surface water data are collected as part of the REMP.Tritium concentrations in surface water samples from Lake Michigan taken between 1973 and 2012 have ranged from non-detect to 660 pCi/L.Groundwater was collected from one off-site well on a quarterly basis.Gamma isotopic, radiostrontium and tritium analyses were performed on all samples. Strontium-89, strontium-90, tritium and gamma emitters were below their respective LLDs.1. Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others. Additional detail may be found by consulting references (CRA 2006).a. Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. In the upper atmosphere, "Cosmogenic" tritium is produced from the bombardment of stable nuclides and combines with oxygen to form tritiated water, which will then enter the hydrologic cycle. Below ground, "lithogenic" tritium is produced by the bombardment of natural lithium present in crystalline rocks by neutrons produced by the radioactive decay of naturally abundant uranium and thorium. Lithogenic production of tritium is usually negligible compared to other sources due to the limited abundance of lithium in rock. The lithogenic tritium is introduced directly to groundwater.

A major anthropogenic source of tritium and strontium-90 comes from the former atmospheric testing of thermonuclear weapons. Levels of tritium in precipitation increased significantly during the 1950s and early 1960s, and later with additional testing, resulting in the release of significant amounts of tritium to the atmosphere.

the Canadian heavy water nuclear power reactors, other commercial power reactors, nuclear research and weapons production continue to influence tritium concentrations in the environment.

b. Precipitation Data Precipitation samples are routinely collected at stations-8-167 of 180 around the world for the analysis of tritium and other radionuclides.

Two publicly available databases that provide tritium concentrations in precipitation are Global Network of Isotopes in Precipitation (GNIP) and USEPA's RadNet database.

GNIP provides tritium precipitation concentration data for samples collected world wide from 1960 to 2006.RadNet provides tritium precipitation concentration data for samples collected at stations through out the U.S. from 1960 up to and including 2006. Based on GNIP data for sample stations located in the U.S. Midwest, tritium concentrations peaked around 1963. This peak, which approached 10,000 pCi/L for some stations, coincided with the atmospheric testing of thermonuclear weapons. Tritium concentrations in surface water showed a sharp decline up until 1975 followed by a gradual decline since that time. Tritium concentrations in Midwest precipitation have typically been below 100 pCi/L since around 1980. Tritium concentrations in wells may still be above the 200 pCi/L detection limit from the external causes described above. Water from previous years and decades is naturally captured in groundwater, so some well water sources today are affected by the surface water from the 1960s that were elevated in tritium.c. Surface Water Data Tritium concentrations are routinely measured in large surface water bodies, including Lake Michigan and the Mississippi River. Illinois surface water data were typically less than 100 pCi/L.The USEPA RadNet surface water data typically has a reported 'Combined Standard Uncertainty' of 35 to 50 pCi/L.According to USEPA, this corresponds to a +/- 70 to 100 pCi/L 95% confidence bound on each given measurement.

Therefore, the typical background data provided may be subject to measurement uncertainty of approximately

+/- 70 to 100 pCi/L.The radio-analytical laboratory is counting tritium results to an Exelon specified LLD of 200 pCi/L. Typically, the lowest positive measurement will be reported within a range of 40 -240 pCi/L or 140 +/- 100 pCi/L. Clearly, these sample results cannot be distinguished as different from background at this concentration. 168 of 180 IV. Results and Discussion A. Groundwater and Surface Water Results Groundwater and Surface Water Samples were collected from on-site wells throughout the year in accordance with the station radiological groundwater protection program. Analytical results and anomalies are discussed below.Tritium Samples from all locations were analyzed for tritium activity (Table B-1.1, Appendix B) (Table B-11.1, Appendix B). Tritium was not detected in any of the groundwater or surface water samples analyzed.

Zion Nuclear Power Station does not have any off-site wells.Strontium Strontium-90 was not detected in any of the samples analyzed in 2012.Gross Alpha and Gross Beta (Dissolved and Suspended)

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater samples during all four quarters of sampling in 2012. Gross Alpha (dissolved) was not detected in any of the groundwater locations.

Gross Alpha (suspended) was not detected in any of the groundwater locations.

Gross Beta (dissolved) was detected at all 36 groundwater locations.

The concentrations ranged from 2.6 to 21.4 pCi/L. Gross Beta (suspended) was not detected at any of the groundwater locations.

Although Gross Beta was detected, this data is at or near background levels and consistent with environmental data (Table B-1.1, Appendix B).Gamma Emitters All gamma-emitting radionuclides were not detected in either groundwater or surface water samples analyzed (Table B-1.2, Appendix B) (Table B-11.1, Appendix B).-10-169 of 180 B. Drinking Water Well Survey A drinking water well survey was conducted during the summer 2006 by CRA (CRA 2006) around the Zion Nuclear Power Station.C. Summary of Results -Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE and Environmental Inc. (Midwest Labs) are presented in the AREOR.D. Leaks, Spills, and Releases There were no leaks, spills or releases.E. Trends There are no previously identified plumes therefore there are no trends.F. Investigations There are currently no investigations at this time.G. Actions Taken 1. Compensatory Actions There have been no station events requiring compensatory actions at the Zion Nuclear Power Station.2. Installation of Monitoring Wells No new wells were required to be installed.

3. Actions to Recover/Reverse Plumes There have been no station events requiring actions to recover/reverse any plumes.-11 -170 of 180 APPENDIX A LOCATION & DIRECTION 171 of 180 TABLE A-1: Sampling Locations and Distance for the Radiological Groundwater Protection Program, Zion Station, 2012.Site Site Type Temporary/Permanent MW-ZN-01S MW-ZN-02S MW-ZN-03S MW-ZN-04S MW-ZN-05S MW-ZN-06S MW-ZN-07S MW-ZN-08S MW-ZN-09S MW-ZN-10S MW-ZN-11S SW-ZN-01 Monitoring Well Monitoring Well Monitoring Well Monitoring Well Monitoring Well Monitoring Well Monitoring Well Monitoring Well Monitoring Well Monitoring Well Monitoring Well Surface Water Permanent Permanent Permanent Permanent Permanent Permanent Permanent Permanent Permanent Permanent Permanent Lake Michigan Distance On-Site On-Site On-Site On-Site On-Site On-Site On-Site On-Site On-Site On-Site On-Site On-Site 172 of 180 A-I 5.fme at Ow m Groundwg~

SanWps Loc0io* Suwftce Wale SmV~ID Localon* WWI Localion Figure A-1 Radiological Ground Water Protection Program Groundwater and Surface Water Locations of the Zion Station, 2012 173 of 180 A-2 APPENDIX B DATA TABLES 174 of 180 TABLE B-I.1 CONCENTRATIONS OF TRITIUM IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-90 Gr-A (DIS)Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)MW-LN-UI5 U2i14/12 < 173 < 0.7 < 1.1 < 0.6 MW-ZN-01S 06/07/12 < 157 < 0.7 < 1.0 < 0.4 8.6 +/- 1.4 < 1.7 7.7 +/- 1.3 < 1.4 MW-ZN-01S MW-ZN-01S MW-ZN-02S MW-ZN-02S MW-ZN-02S MW-ZN-02S MW-ZN-03S MW-ZN-03S MW-ZN-03S MW-ZN-03S MW-ZN-04S MW-ZN-04S MW-ZN-04S MW-ZN-04S MW-ZN-05S MW-ZN-05S MW-ZN-05S MW-ZN-05S MW-ZN-06S MW-ZN-06S MW-ZN-06S MW-ZN-06S MW-ZN-07S MW-ZN-07S MW-ZN-07S MW-ZN-07S MW-ZN-08S MW-ZN-08S MW-ZN-08S MW-ZN-08S MW-ZN-09S MW-ZN-09S MW-ZN-09S MW-ZN-09S MW-ZN-10S MW-ZN-10S MW-ZN-10S MW-ZN-10S MW-ZN-11S MW-ZN-11S MW-ZN-11 S MW-ZN-11 S 09/18/12 10/01/12 02/14/12 06/07/12 09/18/12 10/01/12 02/14/12 06/07/12 09/18/12 10/01/12 02/16/12 06/07/12 09/18/12 10/01/12 02/15/12 06/08/12 09/19/12 10/02/12 02/15/12 06/08/12 09/20/12 10/02/12 02/15/12 06/08/12 09/20/12 10/02/12 02/15/12 06/08/12 09/20/12 10/02/12 02/16/12 06/07/12 09/19/12 10/03/12 02/16/12 06/07/12 09/19/12 10/01/12 02/15/12 06/08/12 09/19/12 10/02/12< 173< 197* 176* 161* 170* 192< 172* 159* 170* 193* 173* 159* 168* 191* 173* 161* 170* 193< 97* 171* 170* 190* 174* 168* 167* 195* 171* 170* 170* 189* 174* 171* 170* 192* 175* 170* 194* 187* 182* 170* 173* 191 0.7 0.4 0.7 0.7 0.8 0.8 0.7 0.7 0.8 0.7 0.7 0.8 0.8 0.5 0.6 0.7 0.8 0.5 0.7 0.7 0.7 0.5 0.7 0.7 0.9 0.5 0.6 0.8 0.9 0.8 0.8 0.8 0.7 0.5< 1.3* 1.3* 1.0* 0.9* 1.5* 1.2< 1.1< 1.1< 1.1* 1.3* 0.7* 0.9* 1.2< 1.4* 0.7* 1.0< 1.1* 0.7* 0.8* 1.0* 1.9* 0.7* 0.8* 0.7* 1.0< 1.1* 1.0* 0.9* 0.9< 1.1< 1.1* 0.9* 1.4* 1.3< 1.3* 0.9* 0.6* 0.4* 1.3* 0.9* 0.5* 0.4* 1.3* 0.9* 0.5* 0.4* 1.3* 0.8* 0.5< 0.4* 1.3* 0.8 8.5 8.3 18.9 19.6 21.4 19.3 9.2 9.1 9.4 9.1 10.2 6.7 11.7 11.2 2.6 4.3 3.9 4.6 1.8 1.7 1.7 1.4 1.7 1.7 1.9 1.6 1.8 1.7 1.9 1.6 1.7 1.6 1.9 1.6 1.7 1.6 1.9 1.6 1.7 1.6 2.2 1.7 1.6 1.6 2.2 1.7 1.6 1.6 2.2 1.7 1.6 1.6* 0.5* 0.4* 1.3* 0.8* 0.4* 0.5* 1.0* 0.7* 0.4* 0.5* 1.0* 0.7* 0.4* 0.5* 1.0* 0.7 4.3 6.0 5.4 5.1 5.6 5.4 8.7 9.1 7.2 8.4 8.4 6.7 9.7 7.7 7.9 8.4 B-1 175 of 180 TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-1 34 Cs-137 Ba-140 La-140 DATE MW-ZN-01S 02/14/12 MW-ZN-01S 06/07/12 MW-ZN-01S 09/18/12 MW-ZN-01S 10/01/12 MW-ZN-02S 02/14/12 MW-ZN-02S 06/07/12 MW-ZN-02S 09/18/12 MW-ZN-02S 10/01/12 MW-ZN-03S 02/14/12 MW-ZN-03S 06/07/12 MW-ZN-03S 09/18/12 MW-ZN-03S 10/01/12 MW-ZN-04S 02/16/12 MW-ZN-04S 06/07/12 MW-ZN-04S 09/18/12 MW-ZN-04S 10/01/12 MW-ZN-05S 02/15/12 MW-ZN-05S 06/08/12 MW-ZN-05S 09/19/12 MW-ZN-05S 10/02/12 MW-ZN-06S 02/15112 MW-ZN-06S 06/08/12 MW-ZN-06S 09/20/12 MW-ZN-06S 10/02/12 MW-ZN-07S 02/15/12 MW-ZN-07S 06/08/12 MW-ZN-07S 09/20/12 MW-ZN-07S 10/02/12 MW-ZN-08S 02/15/12 MW-ZN-08S 06/08/12 MW-ZN-08S 09/20/12 MW-ZN-08S 10/02/12 MW-ZN-09S 02/16/12 MW-ZN-09S 06/07/12 MW-ZN-09S 09/19/12 MW-ZN-09S 10/03/12 MW-ZN-10S 02/16/12 MW-ZN-10S 06/07/12< 46 < 66< 69 < 119* 42 < 87< 59 < 55< 44 < 37* 60 < 67< 48 < 41* 70 < 79< 37 < 79< 47 < 56< 57 < 48< 80 < 79< 38 < 37< 81 < 200* 59 < 59< 57 < 119< 38 < 75< 48 < 114< 65 < 154< 90 < 66< 47 < 94< 57 < 47< 67 < 67' 69 < 117< 38 < 69< 50 < 111< 60 < 106< 66 < 57< 43 < 89< 57 < 49< 52 < 106< 63 < 120< 41 < 71<64 < 66< 73 < 59' 37 < 37< 48 < 103< 47 < 110<4<6<4<5<4<8<5<9<4<6<5<6<3<8<5<7<4<5<6<10<4<6<6<7<4<5<5<5<4<5<7<6<3<7<5<3<5<6<4<6<5<5<5<7<5< 10<4<5<6<7<5<9<5<6<4.<5<6<9<5<6<8<7<4<6<8<7<5<6<5<5<4<6<6<5<5<6< 10 <4<14 <7' 12 <4*12 <6<10 <5'14 <8<12 <5< 13 < 10<9 <4<10 <6<13 <5<16 <7<8 <4< 19 < 12<12 <4<18 <6<9 <3<11 <5<16 <7' 24 <9'12 <5'12 <6<16 <7<14 <7<9 <4<16 <6'12 <5<13 <7<11 <4<13 <6<15 <7<14 <7<9 <4< 14 <5<16 <8<6 <4<11 <3<10 <7<8 <5'12 <7<10 <5<14 <8<9 <5<16 <7<10 <5<11 <10<7 <5<13 <6<9 <5<17 <9<6 <5<17 <8<9 <7<11 <7<8 <4<10 <6<14 <9< 19 < 10<10 <5<13 <7<14 <8<17 <8<8 <4<8 <6<12 <7<13 <7<9 <5<10 <6<10 <7<11 <8<8 <5<13 <7<11 <6<7 <4<11 <6<15 <5<8 <4 <4<11 <7 <6<10 <5 <5<13 <5 <5<8 <4 <4<12 <8 <7<10 <5 <5<13 <8 <6<8 <3 <4<11 <6 <8<12 <5 <6'15 <7 <6<8 <3 <4<12 <6 <9<10 <5 <5<11 <7 <8<7 <3 <4<9 <5 <6<16 <8 <8<19 <8 <10<10 <4 <5<13 <5 <6<11 <5 <6<12 <6 <7<9 <3 <4<11 <7 <5<9 <5 <6<14 <6 <7<8 <4 <5<10 <6 <6<10 <5 <6'15 <7 <6<8 <3 <4<12 <6 <7<11 <6 <8<7 <3 <5<9 <4 <5<13 <5 <6<45 < 11<46 < 17< 36 < 10<48 < 13'41 < 11< 50 < 14' 41 < 12' 64 < 16< 39 < 11< 32 < 15<40 < 12' 57 < 21' 34 < 11< 52 < 18< 42 < 14< 51 < 19< 36 < 10< 32 < 10< 53 < 16< 64 < 23< 46 < 12< 33 < 10<48 < 11< 47 < 17< 41 < 10<31 <13<43 < 12< 38 < 13< 46 < 13<29 < 10<42 < 13<40 < 16< 38 < 11< 39 < 13'42 < 11<22 < 11< 41 < 16< 36 < 14 TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 SITE COLLECTION Be-7 DATE Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 MW-ZN-10S MW-ZN- 10S MW-ZN- 11S MW-ZN-11S MW-ZN-11 S MW-ZN-i 1S 09/19/12 10/01/12 02/15/12 06/08/12 09/19/12 10/02/12< 58< 70< 43< 46< 75< 71< 67* 118< 39< 67< 55< 133<7 <7 <15 <6<7 <7 <15 <8<4 <5 <10 <4<4 <5 <7 <5<14 <8 <11<13 <9 <13<9 <5 <7<8 <5 <9<17 <9 <17<14 <8 <12<6 <8 <42<8 <7 <49<4 <4 <42<5 <4 <27<8 <9 <54<6 <6 <48< 15* 16< 11<9< 21* 17<7<6<8<7* 15* 13 00 0-TABLE B-1.3 CONCENTRATIONS OF IRON-55 AND NICKEL-63 IN GROUNDWATER SAMPI COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE MW-ZN-01S MW-ZN-01S MW-ZN-01S MW-ZN-01S MW-ZN-02S MW-ZN-02S MW-ZN-02S MW-ZN-02S MW-ZN-03S MW-ZN-03S MW-ZN-03S MW-ZN-03S MW-ZN-04S MW-ZN-04S MW-ZN-04S MW-ZN-04S MW-ZN-05S MW-ZN-05S MW-ZN-05S MW-ZN-05S MW-ZN-08S MW-ZN-08S MW-ZN-08S MW-ZN-08S MW-ZN-09S MW-ZN-09S MW-ZN-09S MW-ZN-09S MW-ZN-10S MW-ZN-10S MW-ZN-10S MW-ZN-10S MW-ZN-1 1S MW-ZN-1 iS MW-ZN-11S MW-ZN-1 iS COLLECTION DATE 02/14/12 06/07/12 09/18/12 10/01/12 02/14/12 06/07/12 09/18/12 10/01/12 02/14/12 06/07/12 09/18/12 10/01/12 02/16/12 06/07/12 09/18/12 10/01/12 02/15/12 06/08/12 09/19/12 10/02/12 02/15/12 06/08/12 09/20/12 10/02/12 02/16/12 06/07/12 09/19/12 10/03/12 02/16/12 06/07/12 09/19/12 10/01/12 02/15/12 06/08/12 09/19/12 10/02/12 Fe-55 Ni-63* 182< 64< 66< 95* 126< 73* 110* 105* 200* 112< 111* 78* 140* 58* 65* 91* 145< 94* 145* 81* 197* 29* 146* 155* 71* 152* 64* 108* 158* 81* 81< 127< 131< 98< 88< 76 B-4 178 of 180 TABLE B-II.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION SITE DATE H-3 SW-ZN-01 02/15/12 < 184 SW-ZN-01 06/07/12 < 175 SW-ZN-01 09/18/12 < 171 SW-ZN-01 10/01/12 < 193 B-5 179 of 180 TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2012 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA SITE COLLECTION Be-7 DATE K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 SW-ZN-01 SW-ZN-01 SW-ZN-01 SW-ZN-01 02/15/12 06/07/12 09/18/12 10/01/12< 26< 57< 80< 47< 51< 95< 128< 86<2<5< 10<4<3 <7 <3 <5 <3 <5 <2 <3 <27<6 <10 <9 <10 <7 <9 <6 <6 <40<9 <19 <6 <15 <10 <15 <7 <9 <59<5 <13 <6 <9 <5 <10 <5 <4 <36<9< 14< 24< 12 00 C)00 00

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