Text

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; ZionSolutions
To:	; Document Control Desk, NRC/FSME
References
	ZS-2013-0185
	Download: ML13135A009 (182)
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ZIONSOLUTIONSLLC An Ene ySoW-c on-nCy 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

IL60099 (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 Dan Shrum Senior VP and General Manager Senior VP Regulatory Affairs ZionSolutions, LLC EnergySolutions 101 Shiloh Boulevard 423 West 300 South, Ste. 200 Zion, IL 60099 Salt Lake City, UT 84101 (Cover letter only, no attachments) (Cover letter only, no attachments)

Patrick Thurman, Esq. Russ Workman VP Regulatory Affairs, Licensing & General Counsel Document Control EnergySolutions ZionSolutions, LLC 423 West 300 South, Ste. 200 101 Shiloh Boulevard Salt Lake City, UT 84101 Zion, IL 60099 (Cover letter only, no attachments)

(Cover letter only, no attachments)

Illinois Department of Nuclear Safety Gary Bouchard Office of Nuclear Facility Safety VP Engineering, Ops & Nuclear Security and 1035 Outer Park Drive Decommissioning Plant Manager Springfield, IL 62704 ZionSolutions, LLC (Cover letter only, no attachments) 101 Shiloh Boulevard Zion, IL 60099 Kent McKenzie (Cover letter only, no attachments) Emergency Management Coordinator Lake .County Emergency Management Alan Parker Agency President Projects Group 1303 N. Milwaukee Avenue EnergySolutions Libertyville, IL 60048-1308 1009 Commerce Park Drive, Ste. 100 (Cover letter only, no attachments)

Oak Ridge, TN 37830 (Cover letter only, no attachments) Regional Administrator U.S. NRC, Region III John Christian 2443 Warrenville Road President of Logistics, Processing and Lisle, IL 60532-4352 Disposal (LP& D) Group EnergySolutions John E. Matthews 1750 Tysons Boulevard, Suite 1500 Morgan, Lewis & Bockius LLP Mclean, VA 22102 1111 Pennsylvania Avenue, NW (Cover letter only, no attachments) 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 .......................................................................................... 1 II. Introduction ..................................................................................................................... 3-A. O bjectives of the REM P .................................................................................. 3 B. Im plem entation of the O bjectives .................................................................. 3 Ill. Program Description ................................................................................................ 3 A. Sam ple Collection ......................................................................................... 3 B. Sam ple Analysis ............................................................................................ 5 C. Data Interpretation ......................................................................................... 5 D. Program Exceptions ....................................................................................... 6 E. Program Changes ......................................................................................... 8 IV. Results and Discussion ........................................................................................... 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 ......................................................................... 10 C. Am bient Gam m a Radiation ......................................................................... 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 Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for the Zion Nuclear Power Station, 2012 Appendix B Location Designation, Distance & Direction, and Sample Collection &

Analytical Methods Tables Table B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2012 Table B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2012 Figures Figure B-1 Inner Ring TLD Locations and Fixed Air Samplers of the Zion Nuclear Power Station, 2012 Figure B-2 Fish, Water and Sediment Locations of the Zion Nuclear Power Station, 2012 Appendix C Data Tables and Figures - Primary Laboratory Tables Table C-1.1 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012 Table C-1.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

Table C-1.3 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

Table C-11.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

Table C-111.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

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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 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2012 Appendix E Effluent Data Appendix F Meteorological Data Appendix G 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.

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Intentionally left blank 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:

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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:

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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 0.00222 hours 1.322751e-5 weeks 3.044e-6 months ; 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 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months ; 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.

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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.

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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.

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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 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 2degree 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 -

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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 MWSW 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.

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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.

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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)

F- . . . . 4 ..Admin.

. . . Total

. Body 'Adult Tbody ' 2.26E-04 .2_.64E-07' 2.26E-04' 5.25E+001 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.

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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.

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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 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.

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.

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 GR-B 48 4 2.5 2.5 2.7 Z-14 INDICATOR 0 (PCI/LITER) (26/36) (10/12) (9/12) KENOSHA WATER WORKS (1.8/4.5) (1.7/3.6) (2.0/4.5) 10.0 MILES N OF SITE H-3 16 200 <LLD <LLD 0 GAMMA 48 MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD 0 FE-59 30 <LLD <LLD 0 CO-60 15 <LLD <LLD 0 ZN-65 30 <LLD <LLD 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 NB-95 15 <LLD <LLD 0 (PCI/LITER)

ZR-95 15 <LLD <LLD 0 t"

CS- 134 15 <LLD <LLD 0 CS-137 18 <LLD <LLD 0 BA-140 NA <LLD <LLD 0 LA- 140 NA <LLD <LLD 0 FISH GAMMA 8 t')

ON (PCI/KG WET) MN-54 130 <LLD NA 0 0

00 C

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 CO-58 130 <LLD NA 0 (PCI/KG WET)

FE-59) 260 <LLD NA 0 CO-60 130 <LLD NA 0 ZN-65 260 <LLD NA 0 NB-95 NA <LLD NA 0 ZR-95 NA <LLD NA 0 CS- 134 100 <LLD NA 0

-00 00 0

CS-137 100 <LLD 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 BA- 140 NA <LLD NA 0 (PCI/KG WET)

LA- 140 NA <LLD NA 0 SEDIMENT GAMMA 2 (PCI/KG DRY) MN-54 NA <LLD NA 0 CO-58 NA <LLD NA 0 FE-59 NA <LLD NA 0 CO-60 NA <LLD NA 0 tO 00 ZN-65 NA <LLD NA 0 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 SEDIMENT NB-95 NA <LLD NA 0 (PCI/KG DRY)

ZR-95 NA <LLD NA 0 CS-134 150 <LLD NA 0 CS-137 180 <LLD NA 0 BA- 140 NA <LLD NA 0 LA-140 NA <LLD NA 0 AIR PARTICULATE GR-B 159 10 18 NA 19 Z-01 INDICATOR 0 (E-3 PCI/CU.METER) (157/159) (52/53) ONSITE I 0' (6/42) (7/42) 0.3 MILES S OF SITE 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 AIR PARTICULATE GAMMA 12 (E-3 PCI/CU.METER) MN-54 NA <LLD NA 0 CO-58 NA <LLD NA 0 FE-59 NA <LLD NA 0 CO-60 NA <LLD NA 0 ZN-65 NA <LLD NA 0 NB-95 NA <LLD NA 0 ZR-95 NA <LLD NA 0 C0 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-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 CS-134 10 <LLD NA 0 (E-3 PCI/CU.METER)

CS-137 10 <LLD NA 0 BA-140 NA <LLD NA LA- 140 NA <LLD NA 0 DIRECT RADIATION TLD-QUARTERLY 144 NA 20.6 NA 27 Z-108-1 INDICATOR 0 (MILLI-ROENTGEN/QTR.) (144/144) (4/4)

(16/45) (18/44) 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 Kenosha Water Works (control) 10.0 miles N Z-15 Lake County Water Works (indicator) 1.4 miles NNW Z-16 Waukegan Water Works (indicator) 6.1 miles S Z-18 Lake Forest Water Works (control) 12.9 miles S B. Air Particulates Z-01 Onsite 1 (indicator) 0.3 miles S Z-02 Onsite 2 (indicator) 0.2 miles W Z-03 Onsite 3 (indicator) 0.2 miles NNW C. Fish Z-26 Lake Michigan Nearsite (indicator) At station Z-27 Lake Michigan Farsite (indicator) 10.1 miles N D. Sediment Z-25 Lake Michigan, Illinois Beach State Park 0.2 miles S (indicator)

E. Environmental Dosimetry - TLD Inner Ring Z-101-1 and -2 0.2 miles N Z-102-1 and-2 0.2 miles NNE Z-103-1 and-2 0.2 miles NE Z-104-1 and-2 0.1 miles ENE Z-105-1 and -2 0.1 miles E Z-106-1 and -2 0.1 miles ESE Z-107-1 and -2 0.1 miles SE Z-108-1 and -2 0.1 miles SSE Z-110-1 and -2 0.2 miles SSW Z-111-1 and -2 0.3 miles SW Z-112-1 and-2 0.7 miles WSW Z-113-1 and -2 0.6 miles W Z-114-1 and -2 0.6 miles WNW Z-115-1 and -2 0.4 miles NW Z-301-1 and -2 0.5 miles NW Other Z-01-1 and -2 Onsite 1 (indicator) 0.3 miles S Z-02-1 and -2 Onsite 2 (indicator) 0.2 miles W Z-03-1 and -2 Onsite 3 (indicator) 0.2 miles NNW B-I 33 of 180

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.

B-2 34 of 180

RLD Moal0to Loan *S* u hair HmiTLJD Locb*n -d rFind " S=uM A AirSaminig LoM M1I OnsloNoý I Scuabuik oagk No. 2 WstaUid U Ond M 3Norwtidc 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 Zý F,14 Kmasdi WatwWalk

&1-15 11Ce-wicy %amn %mbt F-i6 Wgjgggi WOW Waft

&1.8Lte AN tWa Wi t25isawheM& 9 Pik-

ýW27 LUhvWgmizwP aiLD 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 Z-14 Z-15 Z-16 Z-18 PERIOD 01/04/12 - 01/25/12 <2.3

2.2

2.2 2.4 +/-1.5 02/01/12 - 02/29/12 4.5 +/- 1.8

2.6

2.7 <2.7 03/07/12 - 03/28/12 2.9 +/- 1.1 3.9 +/- 1.1 3.0 +/- 1.1 2.2 +/-1.1 04/04/12 - 04/04/12 2.1 +/- 1.0 2.7 +/- 1.0 2.1 +/- 1.0 1.8 +/-1.1 05/02/12 - 05/30/12 2.1 +/- 1.0 2.6 +/- 1.0 2.2 +/- 1.0 2.1 +/-1.0 06/06/12 - 06/27/12 2.0 +/- 1.1

1.7 2.6 +/- 1.1 3.6 +/-1.2 07/05/12 - 07/25/12 <1.6

1.6 2.1 +/- 1.1 2.7 +/-1.2 08/01/12 - 08/29/12 2.5 +/- 1.0 2.7 +/- 1.1 2.6 +/- 1.0 2.8 +/-1.1 09/05/12 - 09/26/12 *2.1 2.3 +/- 1.4

2.2 *2.2 10/03/12 - 10/24/12 3.3 +/- 1.1 2.3 +/- 1.1 2.2 +/- 1.1 3.4 +/-1.1 11/01/12 - 11/28/12 2.8 +/- 1.1 2.1 +/- 1.1 1.9 +/- 1.1 2.4 +/-1.1 12/05/12 - 12/26/12 2.0 +/- 1.0 1.8 +/- 1.0 2.0 +/- 1.1 1.7 +/-1.0 MEAN* 2.7 +/- 1.7 2.6 +/- 1.3 2.3 +/- 0.7 2.5 +/-1.3 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 Z-14 Z-15 Z-16 Z-18 PERIOD 01/04/12 - 03/28/12

166 164 168 163 04/04/12 - 06/27/12

151 149 184 148 07/05/12 - 09/26/12

162 159 159 159 10/03/12 - 12/26/12

173 180 182 181 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 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD Z-14 01/04/12 - 01/25/ 12 <6 6 < 16 <6 <9 <8 <10 <5 <5 < 64 < 20 02/01/12 - 02/29/ 12 <4 5 <9 <4 <8 <5 <8 <4 <4 < 41 < 12 03/07/12 - 03/28/112 <5 3 <8 <6 <11 <5 <6 <5 <6

22 <7 04/04/12 - 04/04/ 12 <4 5 < 13 <4 <8 <5

10 <4 <4 < 102 < 29 05/02/12 - 05/30/ 12 <8 8 < 21 <5 < 18 <8 *13 <7 <7 < 67 < 20 06/06/12 - 06/27/'12 <4 5 < 13 <5 < 10 <6 <9 <4 <4

72 <18 07/05/12 - 07/25/'12 <5 5 < 10 <5 <9 <6 < 13 <5 <5

36 *15 08/01/12 - 08/29/'12 <4 5 < 10 <3 <9 <5 <9 <3 <4 < 53 < 21 09/05/12 - 09/26/ 12 <7 9 <15 <6 < 16 <9 <11 <6 <6 < 90 < 24 10/03/12 - 10/24/ 12 <4 4 < 10 <4 <7 <6 <8 <4 <3

78 < 23 11/01/12 - 11/28/ /12 <5 5 < 12 <5 <8 <5 <7 <4 <4 < 29 <7 12/05/12 - 12/26/'12 <5 5 < 16 <6 < 13 <7 <9 <5 <5 < 39 < 16 (1) MEAN t'Q Z-15 01/04/12 01/25/12 <5 <6 < 14 <5 < 12 <7 <10 <5 <5 < 61 < 16 02/01/12 02/29/12 <5 <5 <13 <5 < 11 <6 <7 <4 <5

51 < 16 03/07/12 03/28/12 <4 <4 <9 <4 <8 <5 <8 <4 <5 < 22 <8 04/04/12 04/04/12 <5 <6 < 16 <5 < 10 <7 < 14 <6 <5

139 < 45 05/02/12 05/30/12 <6 <8 < 14 <7

14 <7 < 14 <6 <9 < 63 < 18 06/06/12 06/27/12 <4 <5 *13 <3 < 10 <6 < 10 <4 <4 < 59 *19 07/05/12 07/25/12 <6 <6 < 14 <5 <11 <6 < 10 <6 <6 < 52 < 18 08/01/12 08/29/12 <4 <5 < 14 <4 <11 <6 < 10 <5 <5 < 74 < 18 09/05/12 09/26/12 <6 <7

12 <6 < 13 <6 *15 <5 <6 < 96 < 22 10/03/12 10/24/12 <5 <6 < 15 <5 <11 <8 < 12 <4 <6 < 107 < 31 11/01/12 11/28/12 <5 <5 < 14 <5 <11 <5 <8 <4 <5 < 37 < 10 12/05/12 12/26/12 <5 <6 < 11 <4 < 11 <5 <9 <4 <5

36 < 13 MEAN 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 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD Z-16 01/04/12 - 01/25/12 <5 <6 < 14 <5 <11 <7 < 11 <5 <5 < 58 < 21 02/01/12 - 02/29/12 <3 <5 < 12 <4 < 10 <5 <8 <4 <4 < 38 < 14-03/07/12 - 03/28/12 <5 <5 < 11 <4 <8 <5 <9 <5 <5 < 24 <7 04/04/12 - 04/04/12 <5 <6 < 15 <6 <9 <6 <11 <4 <5

98 < 26 05/02/12 - 05/30/12 <7 <8 < 20 <.6 < 12 <7 < 12 <5 <6 < 39 < 21 06/06/12 - 06/27/12 <5 <5 < 15 <5

12 <5 < 11 <5 <4

66 < 22 07/05/12 - 07/25/12 <5 <6

12 <6 <8 <7 <10 <5 <5 < 48 < 16 08/01/12 - 08/29/12 <4 <5 <11 <4 <8 <6 <9 <4 <5

62

20 09/05/12 - 09/26/12 <4 <6 < 15 <5 <9 <6 < 11 <5 <5 < 82 < 31 10/03/12 - 10/24/12 <4 <5 <11 <5 <9 <7 < 10 <4 <4 < 79 < 21 11/01/12 - 11/28/12 <5 <5 <10 <5 <8 <5 <8 <4 <5

31 < 10 12/05/12 - 12/26/12 <6 <6 < 14 <5 < 11 <7 < 12 <4 <5 < 45

20 MEAN Z-18 01/04/12 - 01/25/12 <4 <4 < 11 <5 <6 <6 < 10 <4 <5 < 48

17 02/01/12 - 02/29/12 <5 <6 < 11 <5 < 11 <6 < 11 <5 <5

46 < 17 03/07/12 - 03/28/12 <5 <5 < 11 <5 <7 <5 <8 <4 <6

25 <7 04/04/12 - 04/04/12 <6 <7 < 21 <6 < 14 <8 < 14 <5 <6 < 134

42 05/02/12 - 05/30/12 <6 <6 < 10 <4 <9 <5 <8 <5 <4

50 *19 06/06/12 - 06/27/12 <4 <6 < 13 <5 <9 <6 < 13 <4 <4 < 75 < 23 07/05/12 - 07/25/12 <6 <6 < 12 <5 <11 <6 < 12 <6 <7

51 *13 08/01/12 - 08/29/12 <5 <6 <15 <5 < 10 <7 < 12 <5 <5 < 68 < 24 09/05/12 - 09/26/12 <6 <6 < 16 <6 <11 <6 < 15 <5 <6

106 < 30 10/03/12 - 10/24/12 <4 <5 < 11 <3 <8 <6 <7 <4 <4

85 < 22 11/01/12 - 11/28/12 <5 <6 <10 <6 < 11 <6 <9 <4 <5 < 33 < 11 12/05/12 - 12/26/12 <6 <5 < 12 <6 < 11 <5 <11 <5 <5 < 50 < 16 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 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD Z-26 Common Carp 05/24/12 < 39 < 37 < 86 < 41 < 90 < 35 < 59 < 32 < 28

366

100 Smallmouth Bass 05/24/12 < 55 < 53 < 108 < 57 < 94 < 69

110 < 51 < 59 < 502 < 158 Chinook Salmon 10/22/12 < 38 < 38 < 67 < 40 < 80 < 47 < 71 < 36 < 50 < 320 < 72 Common Carp 10/22/12 < 44 < 51

100

50

108

65

70 < 53

58

415 < 135 MEAN Z-27 Lake Trout 05/15/12 < 59 < 62 < 195 < 58 < 148 < 74 < 140 < 48 < 73 < 947

368 Burbot 05/15/12 < 47 < 53

96 < 44

69

56

85 < 42 < 62 < 837 < 166

) Lake Trout 10/18/12 < 44 < 47 < 95 < 53 < 64 < 56 < 93 < 40 < 67

446

137 Burbot 10/18/12 < 49 < 43

118 < 43

100

61

98 < 43

46 < 452 < 139 MEAN 0

--0 O0

TABLE C-I11.1 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 SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-1 34 Cs-137 Ba-140 La-140 PERIOD Z-25 05/09/12 < 42 < 39 < 89 < 36 < 92 < 43 < 70 < 39 48

210

58 10/17/12 < 23 < 29 < 67 < 34 < 59 < 33 <48 < 28 < 30

173

51 MEAN 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 GROUP I PERIOD Z-01 Z-02 Z-03 U

12/28/11 01/04/12 25 +/- 5 17 4 20 +/-4 01/04/12 01/11/12 22 +/- 5 21 +5 27 5 01/11/12 01/18/12 23 +/- 5 20 +4 23 +/-4 01/18/12 01/25/12 21 +/- 5 18 4 23+/- 5 01/25/12 02/01/12 23 +/- 5 19 4 18+/- 4 02/01/12 02/09/12 18 +/- 4 17 4 16 4 02/09/12 02/15/12 13 +/- 4 10 4 15+/- 4 02/15/12 02/22/12 21 +/- 4 20 +/-4 21 +/-4 02/22/12 02/29/12 23 +/- 5 21 +5 19+/- 5 02/29/12 03/07/12 14 +/- 4 17 4 19 4 03/07/12 03/14/12 19 +/- 4 16 4 14+/- 4 03/14/12 03/21/12 19 +/- 5 15 4 16 4 03/21/12 03/28/12 17 +/- 4 13 4 11 4 03/28/12 04/04/12 8+/-4 10 4 7+/-4 04/04/12 04/11/12 12 4 13+/- 4 12+/- 4 04/11/12 04/18/12 18 4 11 +/-4 17+/- 4 04/18/12 04/25/12 14 4 10 5 8+/-4 04/25/12 05/02/12 18 5 16+/- 4 20+/- 5 05/02/12 05/09/12 12 4 7+/-3 9+/-3 05/09/12 05/16/12 10 5 8+/-4 10+/- 5 05/16/12 05/23/12 15 4 12+/- 4 8+/-4 05/23/12 05/30/12 15 4 15+/- 4 10+/- 4 05/30/12 06/06/12 7+/-4 6+/-4 <6 06/06/12 06/13/12 10 4 15+/- 4 06/13/12 06/20/12 18 4 18 4 06/20/12 06/27/12 9+/-3 13 4 06/27/12 07/05/12 26 +/-4 24 +/-4 07/05/12 07/11/12 15 5 11 5 07/11/12 07/18/12 21 +4 13 4 07/18/12 07/25/12 20 +4 14 +/- 4 07/25/12 08/01/12 14 t 4 10 +/- 4 08/01/12 08/08/12 24 +/- 4 20 +/- 4 08/08/12 08/15/12 14 +/- 4 12 +/- 4 08/15/12 08/22/12 11 4 15 +/- 4 08/22/12 08/29/12 29 5 19 +/- 4 08/29/12 09/05/12 21 +/-4 18 +/- 4 09/05/12 09/12/12 18 4 17 +/- 4 09/12/12 09/19/12 24 +4 17 +/- 4 09/19/12 09/26/12 16 5 15 +/- 4 09/26/12 10/03/12 20 +4 14 +/- 4 10/03/12 10/10/12 17 4 21 +/- 4 10/10/12 10/17/12 16 4 19 +/- 4 10/17/12 10/24/12 19 4 21 +/- 4 10/24/12 11/01/12 13 4 16 +/- 4 11/01/12 11/08/12 21 +5 22 +/-5 11/08/12 11/14/12 26 +/-5 22 +5 11/14/12 11/21/12 42 +5 41 +/-5 11/21/12 11/28/12 34 +/- 5 32 +/-5 11/28/12 12/05/12 27 +/- 6 25 +6 12/05/12 12/12/12 < 4 17 4 12/12/12 12/19/12 39 +/-5 31 +/-5 12/19/12 12/26/12 26 +/-5 27+/- 5 12/26/12 01/02/13 32 +/-5 36 +6 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 MIN MAX MEAN +/-

PERIOD 2SD U1/U4/12 U2/U1/12 I

27 21 +/-+

02/01/12 02/29/12 10 23 18 +/- 7 02/29/12 03/28/12 11 19 16 +/- 5 03/28/12 05/02/12 7 20 13 +/- 8 05/02/12 05/30/12 7 15 11 6 05/30/12 06/27/12 6 18 12 8 06/27/12 08/01/12 9 26 17 + 10 08/01/12 08/29/12 11 31 19 + 13 08/29/12 10/03/12 10 24 17 6 10/03/12 11/01/12 13 21 17 5 11/01/12 11/28/12 21 42 30 +/- 16 12/28/11 01/02/13 17 39 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 SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD Z-01 12/28/11 - 03/28/12 <3 <4 <8 <3 <7 <4 <6 <3 <3 < 53 < 8 03/28/12 - 06/27/12 <3 <3 < 11 <3 <9 <4 <6 <4 <3 < 57 < 24 06/27/12 - 09/26/12 <3 <4 < 10 <3 <7 <5 <7 < 3 <3 < 110 < 64 09/26/12 - 01/02/13 <3 <3 <7 <3 <6 <3 <6 <2 <2 < 33 < 14 MEAN Z-02 12/28/11 - 03/28/12 <3 <4 < 11 <4 <7 <3 <8 <3 <4 < 76 < 24 03/28/12 - 06/27/12 <3 <5 <8 <3 <7 < 4 <5 <3 <2 < 60 < 32 06/27/12 - 09/26/12 <3 <4 < 15 <3 <9 <5 < 11 <4 <3 < 200 < 73 09/26/12 - 01/02/13 <3 <3 <6 <2 <5 <3 <5 <2 <2 < 29 <8 MEAN

<2 <2 < 42 < 16 C-) Z-03 12/28/11 - 03/28/12 <2 <3 <4 <1 <5 <2 <5 03/28/12 - 06/27/12 <3 <3 <9 <3 <6 <3 <6 <3 <2 < 61 < 16 06/27/12 - 09/26/12 <3 <3 <9 <2 <5 <3 <6 <2 <2 < 134 < 32 09/26/12 - 01/02/13 <1 <2 <4 <2 <4 <2 <3 <2 <1 < 21 <7 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 MEAN JAN - MAR APR - JUN JUL - SEP OCT-DEC CODE + 2 S.D.

.~u..J +/- 3.4 Z-01-1 20.3 +3.4 20 18 21 Z-01-2 20.8 + 2.5 21 19 21 Z-02-1 19.0 + 3.3 19 17 19 Z-02-2 18.8 + 1.9 18 18 19 Z-03-1 20.0 + 1.6 20 19 20 Z-03-2 20.8 +/- 6.2 21 18 19 Z-1 01-1 18.5 + 3.5 19 16 19 Z-101-2 20.5 + 3.8 21 23 19 Z-1 02-1 21.8 + 6.2 22 20 19 Z-1 02-2 21.0 + 4.3 22 18 21 Z-103-1 19.5 + 3.5 21 17 20 Z-1 03-2 20.0 +/- 3.3 20 18 20 Z-104-1 20.5 + 5.3 24 18 19 Z-1 04-2 20.8 + 7.7 25 17 18 Z-1 05-1 20.3 + 4.7 22 17 20 Z-1 05-2 19.8 + 4.1 22 17 20 Z-1 06-1 19.3 +/- 6.0 20 16 18 Z-1 06-2 20.0 +/- 3.7 21 18 19 Z-1 07-1 21.5 + 5.0 22 18 24 Z-1 07-2 20.5 + 6.2 24 17 19 Z-1 08-1 27.0 + 23.2 22 18 24 Z-1 08-2 26.8 + 24.8 20 18 24 Z-110-1 20.5 + 2.0 20 20 20 Z-110-2 20.5 + 2.6 21 19 20 Z-111-1 19.3 + 4.1 19 17 19 Z-111-2 19.0 +/- 3.3 19 17 19 Z-112-1 20.5 + 2.6 21 19 20 Z-112-2 21.0 + 2.8 21 19 22 Z-113-1 19.3 + 3.4 20 17 19 Z-1 13-2 19.3 + 3.4 20 17 19 Z-1 14-1 20.8 + 6.0 20 18 20 Z-1 14-2 21.0 + 1.6 21 20 21 Z-115-1 20.5 + 4.2 21 18 20 Z-115-2 21.8 + 4.1 24 19 22 Z-301-1 20.0 + 2.8 21 18 20 Z-301-2 21.5 + 1.2 21 22 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 INNER RING OTHER PERIOD +/- 2 S.D.

JAN-MAR 21.2 +/- 3.0 19.8 +/- 2.3 APR-JUN 18.2 +/- 3.2 18.2 +/- 1.5 JUL-SEP 20.2 +/- 3.2 19.8 +/- 2.0 OCT-DEC 23.4 +/- 11.8 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 PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

INNER RING 120 16 45 20.7 +/- 7.4 OTHER 24 17 25 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

~1 C-,

a.

2.0 1.0 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

-J 4.0 a.

3.0 2.0 1.0 0.0 I-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- 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 10.0 9.0 8.0 7.0 6.0

-J

(.)

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 10.0 9.0 8.0 7.0 6.0 C) 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

-J 150 0.

100 50 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 CJ a.

100 50 0 -

03-29-00 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 a.

100 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 o')

30.0 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 70.0 60.0 50.0 E

m 40.0 0.

30.0 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 C-15 52 of 180

FIGURE C-6 AIR PARTICULATES - GROSS BETA - STATIONS Z-03 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2012 Z-03 Onsite No. 3, Northside 90.0 80.0 70.0 60.0 C.)

50.0 m.

40.0 9

w~

0D 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 C- 16 53 of 180

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 Milk Sr-89 pCi/L 101 94.8 1.07 A Sr-90 pCi/L 11.7 13.5 0.87 A E10067 Milk 1-131 pCi/L 87.5 92.5 0.95 A Ce-1 41 pCi/L 247 260 0.95 A Cr-51 pCi/L 435 436 1.00 A Cs-1 34 pCi/L 133 149 0.89 A Cs-1 37 pCi/L 156 159 0.98 A Co-58 pCi/L 127 132 0.96 A Mn-54 pCi/L 190 195 0.97 A Fe-59 pCi/L 179 168 1.07 A Zn-65 pCi/L 327 333 0.98 A Co-60 pCi/L 274 279 0.98 A E10069 AP Ce-141 pCi 167 164 1.02 A Cr-51 pCi 310 276 1.12 A Cs-1 34 pCi 107 94.5 1.13 A Cs-1 37 pCi 109 101 1.08 A Co-58 pCi 87.6 83.5 1.05 A Mn-54 pCi 133 123 1.08 A Fe-59 pCi 113 106 1.07 A Zn-65 pCi 226 210 1.08 A Co-60 pCi 185 176 1.05 A E10068 Charcoal 1-131 pCi 92.8 94.2 0.99 A E10070 Water Fe-55 pCi/L 1800 1570 1.15 A June 2012 E10198 Milk Sr-89 pCi/L 86.1 99.8 0.86 A Sr-90 pCi/L 9.2 12.7 0.72 W E10199 Milk 1-131 pCi/L 88.9 99.7 0.89 A Ce-1 41 pCi/L 72.8 82.2 0.89 A Cr-51 pCi/L 394 402 0.98 A Cs-1 34 pCi/L 159 174 0.91 A Cs-1 37 pCi/L 206 212 0.97 A Co-58 pCi/L 89.5 92.3 0.97 A Mn-54 pCi/L 129 132 0.98 A Fe-59 pCi/L 129 128 1.01 A Zn-65 pCi/L 193 199 0.97 A Co-60 pCi/L 342 355 0.96 A E10201 AP Ce-141 pCi 73.2 75.1 0.97 A Cr-51 pCi 367 366 1.00 A Cs-1 34 pCi 165 159 1.04 A Cs-1 37 pCi 205 193 1.06 A Co-58 pCi 84.7 84.2 1.01 A Mn-54 pCi 118 121 0.98 A Fe-59 pCi 125 117 1.07 A Zn-65 pCi 181 182 0.99 A Co-60 pCi 338 324 1.04 A E10200 Charcoal 1-131 pCi 101 96.6 1.05 A D-I 55 of 180

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 1.20 A September2012 E10296 Milk Sr-89 pCi/L 106 99.6 1.06 Sr-90 pCi/L 13.6 16.0 0.85 E10297 Milk 1-131 pCi/L 89.8 99.6 0.90 Ce-1 41 pCi/L 160 164 0.98 Cr-51 pCi/L 230 248 0.93 Cs-1 34 pCi/L 101 108 0.94 Cs-1 37 pCi/L 174 174 1.00 Co-58 pCi/L 97.2 100 0.97 Mn-54 pCi/L 188 196 0.96 Fe-59 pCi/L 159 152 1.05 Zn-65 pCi/L 195 192 1.02 Co-60 pCi/L 155 152 1.02 E10299 AP Ce-141 pCi 145 135 1.07 Cr-51 pCi 219 205 1.07 Cs-1 34 pCi 94.1 89.4 1.05 Cs-1 37 pCi 140 144 0.97 Co-58 pCi 88.3 83.0 1.06 Mn-54 pCi 173 162 1.07 Fe-59 pCi 136 125 1.09 Zn-65 pCi 165 159 1.04 Co-60 pCi 133 125 1.06 E10298 Charcoal 1-131 pCi 95.5 97.2 0.98 A E10300 Water Fe-55 pCi/L 1630 1900 0.86 A December 2012 E10334 Milk Sr-89 pCi/L 101 96.6 1.05 A Sr-90 pCi/L 11.3 13.8 0.82 A E10335 Milk 1-131 pCi/L 93.1 90.0 1.03 A Ce-141 pCi/L 52.5 51.0 1.03 A Cr-51 pCi/L 373 348 1.07 A Cs-134 pCi/L 157 165 0.95 A Cs-1 37 pCi/L 113 117 0.97 A Co-58 pCi/L 94.1 98.5 0.96 A Mn-54 pCi/L 116 116 1.00 A Fe-59 pCi/L 124 116 1.07 A Zn-65 pCi/L 190 186 1.02 A Co-60 pCi/L 172 170 1.01 A E10337A AP Ce-141 pCi 51.8 49.6 1.04 A Cr-51 pCi 372 338 1.10 A Cs-1 34 pCi 165 161 1.02 A Cs-1 37 pCi 113 114 0.99 A Co-58 pCi 96.5 95.8 1.01 A Mn-54 pCi 118 112 1.05 A Fe-59 pCi 105 112 0.94 A Zn-65 pCi 166 181 0.92 A Co-60 pCi 179 165 1.08 A D-2 56 of 180

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 Charcoal 1-131 pCi 73.1 72.7 1.01 A E10333 Water Fe-55 pCi/L 1550 1750 0.89 A (a) Teledyne Brown Engineering reportedresult.

(b) The Analytics known value is equal to 100% of the parameterpresent in the standardas determined by gravimetric and/or volumetric measurements made during standardpreparation.

(c) Ratio of Teledyne Brown Engineeringto Analytics results.

(d) Analytics evaluation based on TBE internal QC limits: A= Acceptable. Reported result falls within ratiolimits 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.

D-3 57 of 180

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 pCi/L 63.4 58.5 46.9-66.3 A Sr-90 pCi/L 33.5 37.4 27.4-43.1 A Ba-1 33 pCi/L 89.2 82.3 69.1 - 90.5 A Cs-1 34 pCi/L 66.5 74.2 60.6- 81.6 A Cs-1 37 pCi/L 152 155 140-172 A Co-60 pCi/L 73.3 72.9 65.6-82.6 A Zn-65 pCi/L 109 105 94.5- 125 A Gr-A pCi/L 82.4 62.9 33.0 - 78.0 N (1)

Gr-B pCi/L 43.6 44.2 29.6- 51.5 A 1-131 pCi/L 25.9 27.1 22.5-31.9 A H-3 pCi/L 15433 15800 13800 - 17400 A MRAD-16 Filter Gr-A pCi/filter 39.5 77.8 26.1 - 121 A November, 2012 RAD-91 Water Sr-89 pCi/L 46.5 39.1 29.7 - 46.1 N (2)

Sr-90 pCi/L 16.6 20.1 14.4-23.8 A Ba-1 33 pCi/L 85.2 84.8 71.3- 93.3 A Cs-134 pCi/L 76.9 76.6 62.6 - 84.3 A Cs-1 37 pCi/L 177 183 165-203 A Co-60 pCi/L 77.4 78.3 70.5 - 88.5 A Zn-65 pCi/L 209 204 184 - 240 A Gr-A pCi/L 50.6 58.6 30.6 - 72.9 A Gr-B pCi/L 59.3 39.2 26.0 - 46.7 N (2) 1-131 pCi/L 22.9 24.8 20.6 - 29.4 A H-3 pCi/L 5020 4890 4190-5380 A MRAD-17 Filter Gr-A pCi/filter 59.6 87.5 29.3-136 A (1) Detector G1 is slightly biased high for Th-230 basedmeasurements 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 reportedresult.

(b) The ERA known value is equal to 100% of the parameterpresent in the standardas determined by gravimetricand/or volumetric measurements made during standardpreparation.

(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 Bq/L -0.0045 (1) A Cs-1 37 Bq/L 37.5 39.9 27.9- 51.9 A Co-57 Bq/L 30.8 32.9 23.0 - 42.8 A Co-60 Bq/L 22.4 23.72 16.60 - 30.84 A H-3 Bq/L 456 437 306 - 568 A Mn-54 Bq/L 31.0 31.8 22.3- 41.3 A K-40 Bq/L 144 142 99 - 185 A Sr-90 Bq/L -0.0084 (1) A Zn-65 Bq/L -0.369 (1) A 12-GrW26 Water Gr-A Bq/L 2.06 2.14 0.64-3.64 A Gr-B Bq/L 7.48 6.36 3.18-9.54 A 12-MaS26 Soil Cs-1 34 Bq/kg 831 828 580 - 1076 A Cs-1 37 Bq/kg 0.145 (1) A Co-57 Bq/kg 1270 1179 825- 1533 A Co-60 Bq/kg 7.61 1.56 (2) N (3)

Mn-54 Bq/kg 634 558 391 - 725 A K-40 Bq/kg 1690 1491 1044-1938 A Sr-90 Bq/kg 328 392 274-540 A Zn-65 Bq/kg 753 642 449 - 835 A 12-RdF26 AP Cs-1 34 Bq/sample 2.31 2.38 1.67 - 3.09 A Cs-1 37 Bq/sample 2.15 1.79 1.25-2.33 W Co-57 Bq/sample -0.0701 (1) A Co-60 Bq/sample 2.62 2.182 1.527 - 2.837 W Mn-54 Bq/sample 4.13 3.24 2.27 - 4.21 W Sr-90 Bq/sample 0.0185 (1) A Zn-65 Bq/sample 4.19 2.99 2.09- 3.89 N (3) 12-GrF26 AP Gr-A Bq/sample 0.365 1.2 0.4-2.0 A Gr-B Bq/sample 2.31 2.4 1.2-3.6 A 12-RdV26 Vegetation Cs-1 34 Bq/sample 8.72 8.43 5.90- 10.96 A Cs-137 Bq/sample 0.0424 (1) A Co-57 Bq/sample 15.5 12.0 8.4-15.6 W Co-60 Bq/sample 6.80 6.05 4.24 - 7.87 A Mn-54 Bq/sample 0.0057 (1) A Sr-90 Bq/sample 2.24 2.11 1.48-2.74 A Zn-65 Bq/sample 10.5 8.90 6.23-11.57 A September 2012 12-MaW27 Water Cs-1 34 Bq/L 21.4 23.2 16.2 - 30.2 A Cs-137 Bq/L 17.0 16.7 11.7-21.7 A Co-57 Bq/L 28.7 29.3 20.5 - 38.1 A Co-60 Bq/L 0.179 (1) A H-3 Bq/L 387 334 234 - 434 A Mn-54 Bq/L 18.1 17.8 12.5-23.1 A K-40 Bq/L 139 134 94 - 174 A Sr-90 Bq/L 19.6 12.2 8.5-15.9 N (4)

Zn-65 Bq/L 27.2 25.9 18.1 -33.7 A 12-GrW27 Water Gr-A Bq/L 0.966 1.79 0.54 - 3.04 A Gr-B Bq/L 10.0 9.1 4.6-13.7 A D-5 59 of 180

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 Bq/kg 880 939 657-1221 A Cs-1 37 Bq/kg 1220 1150 805-1495 A Co-57 Bq/kg 1330 1316 921-1711 A Co-60 Bq/kg 552 531 372-690 A Mn-54 Bq/kg 1000 920 644-1196 A K-40 Bq/kg 674 632 442-822 A Sr-90 Bq/kg 528 508 356-660 A Zn-65 Bq/kg 665 606 424-788 A 12-RdF27 AP Cs-134 Bq/sample 2.760 2.74 1.92-3.56 A Cs-1 37 Bq/sample 0.0415 (1) A Co-57 Bq/sample 2.00 191.00 1.34-2.48 A Co-60 Bq/sample 1.78 1.728 1.210 - 2.246 A Mn-54 Bq/sample 2.40 2.36 1.65 - 3.07 A Sr-90 Bq/sample 0.931 1.03 0.72 - 1.34 A Zn-65 Bq/sample -0.688 (1) A 12-GrF27 AP Gr-A Bq/sample 0.434 0.97 0.29- 1.65 A Gr-B Bq/sample 1.927 1.92 0.96 - 2.88 A 12-RdV27 Vegetation Cs-1 34 Bq/sample 6.28 6.51 4.56 - 8.46 A Cs-1 37 Bq/sample 4.62 4.38 3.07 - 5.69 A Co-57 Bq/sample 6.51 5.66 3.96 - 7.36 A Co-60 Bq/sample 5.32 5.12 3.58 - 6.66 A Mn-54 Bq/sample 3.59 3.27 2.29 - 4.25 A Sr-90 Bq/sample 0.0012 (1) A Zn-65 Bq/sample -0.046 (1) A (1) Falsepositive test.

(2) Sensitivity evaluation (3) No cause was found for the failed high soil Co-60 sensitivity test orthe high Zn-65 in AP, which TBE considers an anomaly. NCR 12-08 (4) Sr-90 in water high due to incorrect aliquot entered in LIMS. 12-11 (a) Teledyne Brown Engineering reportedresult.

(b) The MAPEP known value is equal to 1000/. of the parameterpresent in the standardas determined by gravimetricand/or volumetric measurements made during standardpreparation.

(c) DOEIMAPEP evaluation:A=acceptable, W=acceptable with warning, N=not acceptable.

D-6 60 of 180

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 62.2 +/- 6.0 58.5 46.9 - 66.3 Pass ERW-1 783 04/09/12 Sr-90 33.7 +/- 2.1 37.4 27.4 - 43.1 Pass ERW-1 786 04/09/12 Ba-1 33 75.7 +/- 4.1 82.3 69.1 -90.5 Pass ERW-1 786 04/09/12 Co-60 71.9 +/- 4.0 72.9 65.6 - 82.6 Pass ERW-1 786 04/09/12 Cs-1 34 70.0 +/- 4.3 74.2 60.6 -81.6 Pass ERW-1 786 04/09/12 Cs-1 37 151.5 +/-6.1 155.0 140.0 - 172.0 Pass ERW-1 786 04/09/12 Zn-65 108.3 +/- 89.0 105.0 94.5 - 125.0 Pass ERW-1 789 04/09/12 Gr. Alpha 55.0 +/- 2.4 62.9 33.0 - 78.0 Pass ERW-1789 " 04/09/12 Gr. Beta 76.2 +/- 1.8 44.2 29.6 - 51.5 Fail ERW-1798 04/09/12 H-3 16023 +/- 355 15800 13800 -17400 Pass ERW-6283 10/05/12 Sr-89 41.5 +/- 4.1 39.1 29.7 - 46.1 Pass ERW-6283 10/05/12 Sr-90 19.7 +/- 1.6 20.1 14.4 -23.8 Pass ERW-6286 10/05/12 Ba-133 82.7 +/- 4.4 84.8 71.3 -93.3 Pass ERW-6286 10/05/12 Co-60 77.2 +/- 3.7 78.3 70.5 - 88.5 Pass ERW-6286 10/05/12 Cs-1 34 74.4 +/- 1.5 76.6 62.6 - 84.3 Pass ERW-6286 10/05/12 Cs-1 37 183.0 +/- 6.2 183.0 165.0 - 203.0 Pass ERW-6286 10/05/12 Zn-65 211.0 +/- 9.9 204.0 184.0 - 240.0 Pass ERW-6288 10/05/12 Gr. Alpha 47.0 +/- 2.3 58.6 30.6 - 72.9 Pass ERW-6288 10/05/12 Gr. Beta 33.4 +/- 1.2 39.2 26.0 - 46.7 Pass ERW-6290 10/05/12 1-131 23.3 +/- 1.0 24.8 20.6 - 29.4 Pass 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 02/01/12 Co-57 1352.10 +/- 4.00 1179.00 825.00 - 1533.00 Pass STSO-1 766 02/01/12 Co-60 1.70 +/- 0.70 1.56 1.00 -2.00 Pass STSO-1 766 02/01/12 Cs-1 34 842.20 +/- 4.30 828.00 580.00 - 1076.00 Pass STSO-1 766 02/01/12 Cs-1 37 0.40 +/- 0.90 0.00 0.00 -1.00 Pass STSO-1 766 02/01/12 K-40 1729.60 +/- 22.20 1491.00 1044.00 - 1938.00 Pass STSO-1 766 02/01/12 Mn-54 647.60 +/- 4.20 558.00 391.00 - 725.00 Pass STSO-1766 02/01/12 Sr-90 383.20 +/- 15.30 392.00 274.00 - 510.00 Pass STSO-1 766 02/01/12 Zn-65 766.70 +/- 6.70 642.00 449.00 - 835.00 Pass STAP-1 772 02/01/12 Co-57 0.010 +/- 0.01 0.00 0.000 -1.00 Pass STAP-1 772 02/01/12 Co-60 2.40 +/- 0.08 2.18 1.53 -2.84 Pass STAP-1 772 02/01/12 Cs-1 34 2.33 +/- 0.13 2.38 1.67 -3.09 Pass STAP-1 772 02/01/12 Cs-1 37 2.07 +/- 0.10 1.79 1.25 -2.33 Pass STAP-1 772 02/01/12 Mn-54 3.77 +/- 0.14 3.24 2.27 -4.21 Pass STAP-1 772 02/01/12 Sr-90 -0.010 +/- 0.060 0.000 -0.10 -0.13 Pass STAP-1 772 02/01/12 Zn-65 3.67 +/- 0.20 2.99 2.09 -3.89 Pass STAP-1 773 02/01/12 Gr. Alpha 0.51 +/- 0.05 1.20 0.40 -2.00 Pass STAP-1 773 02/01/12 Gr. Beta 2.75 +/- 0.10 2.40 1.20 -3.60 Pass STVE-1 776 02/01/12 Co-57 14.57 +/- 0.28 12.00 8.40 -15.60 Pass STVE-1 776 02/01/12 Co-60 6.45 +/- 0.23 6.05 4.24 -7.87 Pass STVE-1 776 02/01/12 Cs-1 34 8.39 +/- 0.29 8.43 5.90-10.96 Pass STVE-1 776 02/01/12 Cs-137 0.01 +/- 0.09 0.00 0.00-0.10 Pass STVE-1 776 02/01/12 Mn-54 0.03 +/- 0.08 0.00 0.00-0.10 Pass STVE-1 776 02/01/12 Zn-65 10.31 +/- 0.67 8.90 6.23-11.57 Pass STW-1 960 02/01/12 Gr. Alpha 1.68 +/- 0.09 2.14 0.64 -3.64 Pass STW-1960 02/01/12 Gr. Beta 6.33 +/- 0.10 6.36 3.18 -9.54 Pass STW-1 964 02/01/12 Co-57 33.30 +/- 0.40 32.90 23.00 -42.80 Pass STW-1 964 02/01/12 Co-60 23.20 +/- 0.40 23.72 16.60 -30.84 Pass STW-1 964 02/01/12 Cs-134 0.30 +/- 3.00 0.00 0.00 -1.00 Pass STW-1 964 02/01/12 Cs-137 40.10 +/- 0.60 39.90 27.90 -51.90 Pass STW-1 964 02/01/12 H-3 460.00 +/- 12.10 437.00 306.00 -568.00 Pass STW-1 964 02/01/12 K-40 153.00 +/- 4.20 142.00 99.00 -185.00 Pass STW-1 964 02/01/12 Mn-54 32.70 +/- 0.60 31.80 22.30 -41.30 Pass STW-1 964 02/01/12 Sr-90 0.10 +/- 0.20 0.00 0.00 -1.00 Pass STW-1964 02/01/12 Zn-65 0.01 +/- 0.20 0.00 0.00 -1.00 Pass

.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 Sr-90 483.52 +/- 16.47 508.00 356.00 -660.00 Pass STSO-5394 08/01/12 Co-57 1528.00 +/- 4.10 1316.00 921.00 -1711.00 Pass STSO-5394 08/01/12 Co-60 592.00 +/- 3.20 531.00 372.00 - 690.00 Pass STSO-5394 08/01/12 Cs-134 933.60 +/- 5.82 939.00 657.00 -1221.00 Pass STSO-5394 08/01/12 Cs-137 1319.80 +/- 5.50 1150.00 805.00 - 1495.00 Pass STSO-5394 08/01/12 K-40 737.30 +/- 17.70 632.00 442.00 -822.00 Pass STSO-5394 08/01/12 Mn-54 1083.20 +/- 5.20 920.00 644.00 -1196.00 Pass STSO-5394 08/01/12 Zn-65 696.10 +/- 7.00 606.00 424.00 - 788.00 Pass STVE-5395 d 08/01/12 Co-57 7.44 +/- 0.17 5.66 3.96 -7.36 Fail STVE-5395 08/01/12 Co-60 5.90 +/- 0.15 5.12 3.58 -6.66 Pass STVE-5395 08/01/12 Cs-134 7.40 +/- 0.31 6.51 4.56 -8.46 Pass STVE-5395 08/01/12 Cs-137 5.45 +/- 0.18 4.38 3.07 -5.69 Pass STVE-5395 08/01/12 Mn-54 4.06 +/- 0.21 3.27 2.29 -4.25 Pass STAP-5398 08/01/12 Gr. Alpha 0.41 +/- 0.05 0.97 0.29 -1.65 Pass STAP-5398 08/01/12 Gr. Beta 2.11 +/- 0.09 1.92 0.96 -2.88 Pass STAP-5403 08/01/12 Co-57 1.96 +/- 0.05 1.91 1.34 -2.48 Pass STAP-5403 08/01/12 Co-60 1.76 +/- 0.07 1.73 1.21 -2.25 Pass STAP-5403 08/01/12 Cs-134 2.74 +/- 0.18 2.74 1.92 -3.56 Pass STAP-5403 08/01/12 Cs-1 37 0.00 +/- 0.03 0.00 -0.01 -0.01 Pass STAP-5403 08/01/12 Mn-54 2.52 +/- 0.10 2.36 1.65 -3.07 Pass STAP-5403 08/01/12 Zn-65 0.01 +/- 0.06 0.00 -0.010 -0.010 Pass 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 INTR O DUC T ION ................................................................................................................. 1 S UMMA 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.

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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.

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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

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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

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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).

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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 DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC 1.32E+04 3.OEE-II 3.O6E-04 1.005-07 H-3 1.32E+04 3.06E-11 3.06E-04 H-3 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 TO LIMIT (Any Organ)

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD LIVER 3.35E-0 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 TO LIMIT (Tot Body))

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 3.35E-0 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 DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC

--3 1.42E+04 3.25E-II 3.25E-04 1.OOE-07 H-3 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 TO LIMIT (Any Organ)

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD LIVER 3.62E-0 '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 TO LIMIT (Tot Body))

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 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 DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC H-3 9.OOE+03 1.85E-11 1.85E-04 1.OOE-07 9.00E+03 1.85E-II 1.85E-04 H-3 Total 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 0 OOE+00 2.84E-06 2.84E-06 2 84E-06 2 .84E-06 2 .84E-06 0. OOE+00 2 .84E-06 AVEG 0 OOE+00 5. lOE-06 5. lOE-06 5 10E-06 5. OE-06 5. lOE-06 0. OOE+00 5 1OE-06 AGMILK 0 OOE+00 3. 51E-06 3. 51E-06 3 51E-06 3. 51E-06 3.51E-06 0. OOE+00 3 51E-06 ACMEAT 0 OOE+00 7.33E-07 7.33E-07 7. 33E-07 7.33E-07 7.33E-07 0. OOE+00 7. 33E-07 ACMILK 0 OOE+00 1.72E-06 1. 72E-06 1. 72E-06 1.72E-06 1. 72E- 06 0. OOE+00 1. 72E-06 TINHL 0. OOE+00 2.87E-06 2.87E-06 2 .87E-06 2.87E-06 2 .87E-06 0. OOE+00 2 .87E-06 TVEG 0. OOE+00 5.83E-06 5.83E-06 5 83E-06 5.83E-06 5.83E-06 0. OOE+00 5. 83E-06 TGMILK 0. OOE+00 4. 57E-06 4. 57E-06 4. 57E-06 4.57E-06 4.57E-06 0. OOE+00 4. 57E-06 TCMEAT 0. OOE+00 4. 36E-07 4. 36E-07 4 36E-07 4.36E-07 4.36E-07 0. OOE+00 4 36E-07 TCMILK 0. 00E+00 2 . 24E- 06 2. 24E-06 2 .24E-06 2 .24E-06 2 .24E-06 0. OOE+00 2 .24E-06 CINHL 0. OOE+00 2. 53E-06 2. 53E-06 2 . 53E-06 2.53E-06 2 .53E-06 0 OOE+00 2 .53E-06 CVEG 0. OOE+00 9. OSE-06 9. 05E-06 9 .05E-06 9.05E-06 9. 05E-06 0. OOE+00 9 05E-06 CGMILK 0. OOE+00 7.24E-06 7.24E-06 7 .24E-06 7.24E-06 7.24E-06 0. OOE+00 7 .24E-06 CCMEAT 0. OOE+00 5.29E-07 5 .29E-07 5. 29E-07 5.29E-07 5.29E-07 0. OOE+00 5 .29E-07 CCMILK 0. OOE+00 3. 5SE-06 3. 55E-06 3 .55E-06 3.55E-06 3.55E-06 0. OOE+00 3. 55E-06 IINHL 0. OOE+00 1. 46E-06 1. 46E-06 1. 46E-06 1.46E-06 1.46E-06 0. OOE+00 1 .46E-06 IGMILK 0. OOE+00 1.10E-05 1.10E-05 1. 10E-05 1.10E-05 1.10E-05 0. OOE+00 1. 10E-05 ICMILK 0. OOE+00 5.38E-06 5.38E-06 5. 38E-06 5.38E-06 5.38E-06 0. OOE+00 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 TO LIMIT (Any Organ)

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD LIVER 2.29E-0 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 TO LIMIT (Tot Body))

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 2.29E-0 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 DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC 1.28E+04 2.62E-II 2.62E-04 1.OOE-07 H-3 1.28E+04 2.62E-11 2.62E-04 H-3 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 All Gas Releases Period Start Date .... 10/i01/2012 00:00 Period End Date ...... .. 01/i 01/2013 00:00 Period Duration (min): 1.3: 25E+05 Coefficient Type ..... .. Hisltorical 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 4.04E-06 4.04E-06 4. 04E-06 4.04E-06 4.04E-06 0.OOE+00 4.04E-06 AVEG 0.OOE+00 7.25E-06 7.25E-06 7 .25E-06 7 .25E-06 7 .25E-06 0.OOE+00 7.25E-06 AGMILK 0.OOE+00 4.99E-06 4.99E-06 4.99E-06 4 . 99E-06 4.99E-06 0.OOE+00 4.99E-06 ACMEAT 0.OOE+00 1.04E-06 1.04E-06 1. 04E-06 1. 04E-06 1.04E-06 0.OOE+00 1.04E-06 ACMILK 0.OOE+00 2.45E-06 2.45E-06 2 .45E-06 2 .45E-06 2 .45E-06 0.OOE+00 2.45E-06 TINHL 0.OOE+00 4.08E-06 4.08E-06 4.08E-06 4. 08E-06 4.08E-06 0.OOE+00 4.08E-06 TVEG 0.OOE+00 8.30E-06 8.30E-06 8.30E-06 8 .30E-06 8. 30E- 06 0.OOE+00 8.30E-06 TGMILK 0.OOE+00 6.50E-06 6.50E-06 6.50E-06 6. 50E-06 6.50E-06 0.OOE+00 6.50E-06 TCMEAT 0.OOE+00 6.21E-07 6.21E-07 6.21E-07 6 .21E-07 6.21E-07 0.OOE+00 6.21E-07 TCMILK 0.OOE+00 3.19E-06 3.19E-06 3.19E-06 3. 19E-06 3.19E-06 0.OOE+00 3.19E-06 CINHL 0.OOE+00 3.60E-06 3.60E-06 3 .60E-06 3. 60E-06 3.60E-06 0.OOE+00 3.60E-06 CVEG 0.OOE+00 1.29E-05 1.29E-05 1.29E-05 1. 29E-05 1.29E-05 0.OOE+00 1.29E-05 CGMILK 0.OOE+00 1.03E-05 1.03E-05 1.03E-05 1. 03E-05 1. 03E-05 0.OOE+00 1.03E-05 CCMEAT 0.OOE+00 7.53E-07 7.53E-07 7.53E-07 7. 53E-07 7. 53E-07 0.OOE+00 7.53E-07 CCMILK 0.OOE+00 5.05E-06 5.05E-06 5.05E-06 5. 05E-06 5. 05E-06 0.OOE+00 5.05E-06 IINHL 0.OOE+00 2.07E-06 2.07E-06 2 .07E-06 2. 07E-06 2.07E-06 0.OOE+00 2.07E-06 IGMILK 0.OOE+00 1.56E-05 1.56E-05 1.56E-05 1. 56E-05 1.56E-05 0.OOE+00 1.56E-05 ICMILK 0.OOE+00 7.65E-06 7.65E-06 7.65E-06 7. 65E-06 7.65E-06 0.OOE+00 7.65E-06 PERIOD DOSE BY AGEGROUP, ORGAN (mrem)

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0. OOE+00 1.98E-05 1. 98E-05 1.98E-05 1. 98E-05 1. 98E-05 0. OOE+00 1.98E-05 TEEN 0. OOE+00 2 .27E-05 2. 27E-05 2. 27E-05 2 .27E-05 2 .27E-05 0. OOE+00 2 .27E-05 CHILD 0. OOE+00 3. 26E-05 3 .26E-05 3 .26E-05 3 .26E-05 3 .26E-05 0.OOE+00 3.26E-05 INFANT 0. OOE+00 2. 53E-05 2. 53E-05 2. 53E-05 2.53E-05 2.53E-05 0. OOE+00 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 TO LIMIT (Any Organ)

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD LIVER 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 TO LIMIT (Tot Body))

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 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 DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC H-3 4.92E+04 2.67E-11 2.67E-04 -.OOE-07 H-3 4.92E+04 2.67E-11 2.67E-04 4.92E+04 2.67E-11 2.67E-04 Total 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 0. OOE+00 1. SSE- 05 1. 55E-05 1.55E-05 1.55E-05 1.55E-05 0. OOE+00 1.55E-05 AVEG 0. OOE+00 2. 79E- 05 2 .79E-05 2 .79E-05 2. 79E-05 2.79E-05 0 OOE+00 2 .79E-05 AGMILK 0. OOE+00 1. 92E-05 1. 92E-05 1. 92E-05 1. 92E-0S 1. 92E-05 0. OOE+00 1.92E-05 ACMEAT 0. OOE+00 4.01E-06 4 01E-06 4.01E-06 4. 01E-06 4. 01E-06 0. OOE+00 4. 01E-06 ACMILK 0. OOE+00 9.41E-06 9 .41E-06 9.41E-06 9 .41E-06 9.41E-06 0. OOE+00 9.41E-06 TINHL 0. OOE+00 1.57E-05 1. 57E-05 1.57E-05 1.57E-05 1. 57E-05 0. OOE+00 1.57E-05 TVEG 0. OOE+00 3. 19E-05 3 .19E-05 3.19E-05 3.19E-05 3.19E-05 0. OOE+00 3. 19E-05 TGMILK 0. OOE+00 2. 50E-05 2 50E-05 2.50E-05 2.50E-05 2.50E-05 0. OOE+00 2 .50E-05 TCMEAT 0. OOE+00 2 .39E-06 2 .39E-06 2.39E-06 2.39E-06 2.39E-06 0. OOE+00 2.39E-06 TCMILK 0. OOE+00 1.22E-OS 1 .22E-05 1.22E-05 1.22E-05 1.22E-05 0. OOE+00 1.22E-05 CINHL 0. OOE+00 1.38E-05 1. 38E-05 1.38E-0S 1.38E-05 1.38E-05 0. OOE+00 1.38E-05 CVEG 0. OOE+00 4. 95E-05 4 95E-05 4. 95E-05 4.95E-0S 4. 95E-05 0. OOE+00 4 .95E-05 CGMILK 0. OOE+00 3. 96E-05 3. 96E-05 3. 96E-05 3.96E-05 3. 96E-05 0 OOE+00 3.96E-05 CCMEAT 0. OOE+00 2 . 89E- 06 2 .89E-06 2.89E-06 2.89E-06 2 .89E-06 0 OOE+00 2.89E-06 CCMILK 0. OOE+00 1.94E-05 1. 94E-05 1. 94E-05 1. 94E-0S 1. 94E-05 0. OOE+00 1.94E-05 IINHL 0. OOE+00 7. 96E-06 7. 96E-06 7. 96E-06 7. 96E-06 7. 96E-06 0. OOE+00 7. 96E-06 IGMILK 0. OOE+00 6. OOE-05 6 .OOE-05 6. OOE-05 6. OOE-05 6 OOE-05 0. OOE+00 6. OOE-05 ICMILK 0. OOE+00 2. 94E-05 2 94E-05 2. 94E-0S 2. 94E-05 2 94E-05 0. OOE+00 2. 94E-05

=== PERIOD DOSE BY AGEGROUP, ORGAN (mrem)

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0. OOE+00 7. 60E-05 7. 60E-05 7. 60E-05 7. 60E-05 7 .60E-05 0. OOE+00 7. 60E-05 TEEN 0. OOE+00 8.72E-05 8.72E-05 8. 72E-05 8. 72E-05 8.72E-05 0. OOE+00 8. 72E-05 CHILD 0. OOE+00 1.25E-04 1 .25E-04 1.25E-04 1.25E-04 1.25E-04 0. OOE+00 1.25E-04 INFANT 0. OOE+00 9. 74E- 05 9. 74E-05 9. 74E-05 9. 74E-05 9.74E-05 0. OOE+00 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 TO LIMIT (Any Organ)

Dose Age Dose Limit Admin Admin % T.Spec T.Spec Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD LIVER 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 TO LIMIT (Tot Body))

Dose Age Dose Limit Admin Admin % T.Spec T.Spec %

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 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: hrs/y (1200hrs/8760hrs) 8.OOE-03!mRx 0.960mRemx 24,hrx 109 1daysx 1200'hrs= 2.75E+00 mrem

,hr. mR ;day 8760 hrs 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 1.38E+00 mrem/vear 10 CFR 20.1301 (a) (]) limit 100 mrem/year

% of the limit 1.38E-02

2. Compliance Summary IOCFR20 Ist Qtr. 2 nd Qtr. 3rd'Qtr. 4 th Qtr % of Limit TE DE 1.68E-05 1.81E-05 1. 15E-05 1.38E+00 1.38E-02 E. 1-24 96 of 180

Table 3.4-1 (cont'd)

ZION STATION 2012 Unit 2 10CFR20 Compliance Assessment I. IOCFR 20.1301 (a) (1) Compliance Total Effective Dose Equivalent 1.38E+00 mrem/year 10 CFR 20.1301 (a) (1) limit 100 mrem/year

% of the limit 1.38E-02

2. Compliance Summary IOCFR20 1st Qtr. 2 Qtr. 3rd Qtr. 4h Qtr % of Limit TEDE 1.68E-05 1.81E-05 1.15E-05 1.38E+00 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 5 0 6 NE 0 1 15 4 0 0 20 ENE 0 1 0 0 0 3 E 0 0 0 0 0 0 ESE 0 2 0 0 0 2 SE 0 0 0 0 0 2 SSE 0 0 0 S 0 0 0 0 0 0 SSW 0 0 0 1 0 1 SW 0 0 4 2 0 12 WSW 0 0 3 0 0 10 W 0 0 4 0 0 7 WNW 0 0 9 16 NW 0 0 1 0 0 8 NNW 0 0 0 0 0 0 Variable 0 0 0 0 0 0 Total 0 4 54 26 3 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 F-I 100 of 180

Zion Nuclear Station Period of Record: January - March 2012 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

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

SW 0 0 3 2 2 0 7 WSW 0 1 4 0 0 0 5 W 0 1 6 4 0 0 11 WNW 0 2 11 9 0 0 22 NW 0 1 6 2 0 0 9 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 15 35 21 4 0 75 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: 5 101 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 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 1 N 0 0 1 2 0 0 NNE 0 2 5 2 0 0 0 NE 0 5 7 1 0 0 0 0 ENE 0 1 1 1 0 0 0 E 0 2 0 0 0 0 ESE 0 3 3 1 0 0 0 SE 0 2 3 1 1 0 0 SSE 0 0 2 1 0 0 0 S 0 1 2 SSW 0 0 5 3 4 0 12 SW 0 2 7 5 1 0 15 WSW 0 5 10 3 0 0 18 W 0 2 9 3 0 0 14 WNW 0 6 11 2 0 0 19 NW 0 0 5 2 0 0 7 NNW 0 1 0 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 31 55 21 5 0 112 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-3 102 of 180

Zion Nuclear Station Period of Record: January - March 2012 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 11 12 10 2 37 NNE 19 13 22 0 57 NE 8 27 7 0 43 ENE 5 17 3 0 27 E 6 9 6 0 22 ESE 4 3 2 0 10 SE 8 8 4 0 23 SSE 6 14 29 25 84 S 21 32 14 0 68 SSW 26 26 18 16 90 SW 22 38 21 2 86 WSW 32 42 29 0 105 W 38 63 36 0 144 WNW 52 49 24 2 131 NW 33 37 34 0 104 NNW 19 13 13 0 47 Variable 0 0 0 0 0 Total 38 310 403 272 47 8 1078 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 8 Hours of missing stability measurements in all stability classes: 5 F-4 103 of 180

Zion Nuclear Station Period of Record: January - March 2012 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 10 0 0 0 N 3 12 25 10 0 0 0 NNE 4 15 29 2 0 0 0 NE 3 7 12 3 0 0 0 ENE 2 6 11 1 0 0 0 E 3 4 8 ESE 4 1 3 3 0 0 11 SE 0 5 8 0 0 0 13 SSE 3 3 11 1 0 0 18 S 6 14 17 1 0 0 38 SSW 12 11 11 3 0 0 37 SW 5 29 20 9 0 0 63 WSW 4 35 32 3 0 0 74 W 12 55 28 4 0 0 99 WNW 11 12 6 0 0 0 29 NW 4 11 3 1 0 0 19 NNW 4 5 1 0 0 0 10 Variable 1 0 0 0 0 0 1 Total 81 225 166 25 0 0 497 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: 5 104 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 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 N 2 6 0 0 8 0 0 NNE 1 5 0 0 6 0 0 1 NE 0 1 0 0 0 0 1 ENE 0 1 0 0 0 0 E 1 1 0 0 2 0 0 1 ESE 1 0 0 0 0 0 0 1 SE 1 0 0 SSE 1 1 1 1 0 0 4 S 3 19 18 0 0 0 40 SSW 3 12 0 0 0 0 15 SW 8 3 0 0 0 0 11 WSW 8 6 0 0 0 0 14 W 10 7 0 0 0 0 17 WNW 3 8 0 0 0 0 11 NW 1 1 0 0 0 0 2 NNW 2 0 0 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 44 72 19 1 0 0 136 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: 5 F-6 105 of 180

Zion Nuclear Station Period of Record: January - March 2012 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 0 0 0 3 NNE 1 4 0 0 0 5 NE 2 0 0 0 0 2 ENE 0 0 0 0 E 1 0 0 0 0 ESE 2 1 0 0 0 3 SE 0 0 0 1 SSE 1 5 10 0 0 16 S 7 57 41 3 0 0 108 SSW 7 7 0 0 0 0 14 SW 2 0 0 0 0 0 2 WSW 1 0 0 0 0 0 1 W 5 10 0 0 0 0 15 WNW 2 5 0 0 0 0 7 NW 3 0 0 0 0 0 3 NNW 0 0 0 0 0 1 Variable 0 1 0 0 0 0 1 Total 36 93 52 3 0 0 184 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: 5 F-7 106 of 180

Zion Nuclear Station Period of Record: January - March 2012 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Directiorn 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 NNE 0 0 5 2 0 8 NE 0 7 10 2 0 19 ENE 1 0 1 0 0 2 E 0 0 0 0 0 ESE 0 2 0 0 0 2 SE 0 2 0 2 SSE 0 0 0 0 S 0 0 0 0 SSW 0 0 1 1 SW 5 2 1 8 WSW 6 1 2 13 W 1 1 2 4 WNW 8 11 0 21 NW 6 1 0 7 NNW 0 0 0 0 Variable 0 0 0 0 Total 0 1 16 42 22 6 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 F-8 107 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 NNE 0 0 2 2 4 NE 0 1 0 0 1 ENE 0 0 0 1 1 E 0 0 1 0 1 ESE 0 3 2 0 5 SE 0 0 1 1 2 SSE 0 0 0 0 0 S 0 0 0 0 0 SSW 0 0 1 1 6 SW 0 0 1 1 7 WSW 0 0 3 2 5 W 0 0 3 2 8 WNW 0 0 5 10 24 NW 0 0 1 7 11 NNW 0 0 0 0 0 Variable 0 0 0 0 0 Total 0 4 20 27 15 9 75 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 F-9 108 of 180

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 Total N 0 0 1 0 0 0 1 NNE 0 1 2 2 0 2 7 NE 0 4 0 1 0 0 5 ENE 0 2 0 0 0 0 2 E 0 0 1 0 0 0 1 ESE 0 1 2 0 0 0 3 SE 0 0 2 0 1 0 3 SSE 0 0 1 1 0 0 2 S 0 0 1 1 0 0 2 SSW 0 0 4 1 2 5 12 SW 0 0 5 3 1 3 12 WSW 0 0 9 5 1 4 19 W 0 0 8 3 2 1 14 WNW 0 0 7 8 5 0 20 NW 0 1 4 2 2 0 9 NNW 0 0 0 0 0 0 0 variable 0 0 0 0 0 0 0 Total 0 9 47 27 14 15 112 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-10 109 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 4 4 9 11 3 33 NNE 1 9 21 14 11 13 69 NE 0 5 9 13 11 2 40 ENE 0 3 12 12 1 0 28 E 1 1 3 7 4 0 16 ESE 2 3 5 3 2 2 17 SE 0 5 6 4 8 3 26 SSE 0 6 4 14 23 32 79 S 2 3 15 21 23 3 67 SSW 0 6 17 18 9 29 79 SW 0 3 30 26 20 6 85 WSW 1 8 25 28 28 9 99 W 0 11 27 40 49 10 137 WNW 1 9 42 36 29 16 133 NW 0 5 23 32 45 13 118 NNW 0 8 16 20 13 3 60 Variable 0 0 0 0 0 0 0 Total 10 89 259 297 287 144 1086 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 F-I I 110 of 180

Zion Nuclear Station Period of Record: January - March 2012 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 3 3 14 1 0 22 NNE 0 6 11 11 4 0 32 NE 3 2 5 1 2 0 13 ENE 1 4 2 2 0 0 9 E 2 6 1 12 ESE 0 3 4 1 5 17 SE 1 2 2 1 3 12 SSE 2 4 5 9 9 30 S 1 5 6 9 4 25 SSW 0 6 3 3 9 22 SW 1 5 8 22 23 60 WSW 1 2 13 35 16 68 W 1 1 19 61 17 99 WNW 0 5 13 17 6 41 NW 0 5 3 12 2 22 NNW 0 3 3 7 0 13 Variable 0 0 0 0 0 Total 14 62 101 208 101 11 497 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 F-12 III of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 6 NNE 2 3 0 6 NE 0 1 0 3 ENE 0 2 0 5 E 0 3 0 3 ESE 2 2 0 5 SE 0 1 1 7 SSE 1 1 10 24 S 0 5 8 20 SSW 0 1 0 13 SW 0 0 0 10 WSW 1 0 0 7 W 0 3 0 8 WNW 0 0 0 7 NW 0 1 0 8 NNW 0 3 0 5 Variable 0 0 0 0 Total 6 26 40 45 19 1 137 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 F-13 112 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 0 N 2 3 2 0 0 0 NNE 0 0 2 NE 2 2 3 1 0 0 8 ENE 1 2 0 0 0 0 3 E 1 1 0 0 0 0 2 ESE 0 1 0 0 0 0 1 SE 1 0 2 5 0 0 8 SSE 0 0 1 13 18 5 37 S 1 1 10 23 18 2 55 SSW 0 0 12 23 5 0 40 SW 0 1 2 4 0 0 7 WSW 0 0 1 0 0 0 1 W 1 1 0 0 0 0 2 WNW 0 0 1 0 0 0 1 NW 0 2 3 3 0 0 8 NNW 0 3 4 0 0 0 7 Variable 0 0 0 0 0 Total 8 16 41 72 41 7 185 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-14 113 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 0 4 NNE 0 5 51 19 0 0 75 NE 0 3 16 3 0 22 ENE 0 2 13 0 0 15 E 0 7 3 0 0 10 ESE 0 11 9 0 0 20 SE 0 10 0 0 11 SSE 0 3 0 0 3 S 0 1 0 0 1 SSW 0 1 6 0 7 SW 0 11 0 19 WSW 0 13 8 0 21 W 1 22 3 0 27 WNW 1 2 7 0 10 NW 0 4 2 0 6 NNW 0 0 0 0 0 Variable 0 0 0 0 Total 0 41 148 61 0 251 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 F-15 114 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 2 2 0 0 6 NNE 0 5 i1 0 0 0 16 NE 0 4 0 1 0 0 5 ENE 0 2 1 1 0 0 4 E 0 2 0 0 0 0 2 ESE 0 2 1 0 0 0 3 SE 0 1 0 0 0 0 1 SSE 0 0 1 0 0 0 1 S 0 0 3 0 0 0 3 SSW 0 0 3 2 0 0 5 SW 0 1 5 4 2 0 12 WSW 0 1 1 0 1 0 3 W 0 0 5 3 0 0 8 WNW 0 3 3 2 0 0 8 NW 0 1 5 0 0 0 6 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 24 41 15 3 0 83 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 F-16 115 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 8 7 0 0 16 NNE 0 8 19 3 0 0 30 NE 0 12 4 0 0 0 16 ENE 0 2 1 3 0 0 6 E 0 2 1 0 0 0 3 ESE 0 4 0 0 0 0 4 SE 0 4 0 0 0 0 4 SSE 0 3 6 0 0 0 9 S 0 0 2 0 0 0 2 SSW 0 0 2 5 1 0 8 SW 0 3 5 3 3 0 14 WSW 0 2 3 0 1 0 6 W 0 2 2 3 1 0 8 WNW 0 3 1 1 0 0 5 NW 0 2 6 1 0 0 9 NNW 0 1 2 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 0 49 62 26 6 0 143 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: 2 116 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 12 45 22 6 0 87 NNE 3 27 51 27 0 0 108 NE 5 17 15 2 0 0 39 ENE 2 13 15 6 0 0 36 E 2 11 10 9 1 0 33 ESE 5 19 6 4 0 0 34 SE 1 18 2 0 0 0 21 SSE 2 21 15 6 0 0 44 S 1 12 19 2 0 0 34 SSW 0 7 20 10 0 0 37 SW 0 9 32 13 4 0 58 WSW 0 6 4 1 0 0 11 W 2 13 14 2 0 0 31 WNW 1 9 20 0 0 0 30 NW 0 9 11 1 0 0 21 NNW 2 9 15 1 0 0 27 Variable 0 0 0 0 0 0 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

Zion Nuclear Station Period of Record: April - June 2012 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph) wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 36 16 4 0 0 59 NNE 6 33 18 2 0 0 59 NE 3 8 5 0 0 0 16 ENE 3 7 2 0 0 0 12 E 4 14 2 3 0 0 23 ESE 3 13 3 0 0 0 19 SE 7 15 2 0 0 0 24 SSE 6 24 27 2 1 0 60 S 4 37 32 5 1 0 79 SSW 12 25 13 1 0 0 51 SW 6 12 6 1 0 0 25 WSW 2 14 3 0 0 0 19 W 1 25 8 1 0 0 35 WNW 4 19 3 0 0 0 26 NW 3 18 7 0 0 0 28 NNW 5 15 3 0 0 0 23 Variable 1 0 0 0 0 0 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 3 0 0 0 0 7 NNE 2 5 0 0 7 NE 2 5 0 0 0 7 ENE 2 3 3 0 0 8 E 4 6 0 0 0 11 ESE 4 6 1 0 0 SE 1 10 3 0 0 14 SSE 4 12 32 1 0 53 S 7 30 20 0 0 61 SSW I1 29 2 0 0 42 SW 12 1 0 0 24 WSW 10 12 1 0 0 23 W 6 7 0 0 0 13 WNW 6 8 1 0 0 15 NW 8 10 0 0 0 18 NNW 3 1 0 0 0 4 Variable 0 0 0 0 0 0 Total 85 159 64 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 1 0 0 0 0 5 NNE 0 0 0 0 0 0 0 NE 0 2 0 0 0 0 2 ENE 0 0 1 0 0 0 1 E 0 0 2 0 0 0 2 ESE 0 2 0 0 0 0 2 SE 3 2 2 0 0 0 7 SSE 3 3 6 0 0 0 12 S 5 27 22 0 0 0 54 SSW 13 10 0 0 0 0 23 SW 5 9 0 0 0 0 14 WSW 13 6 0 0 0 0 19 W 12 10 0 0 0 0 22 WNW 2 4 0 0 0 0 6 NW 3 0 0 0 0 0 3 NNW 4 0 0 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 67 76 33 0 0 0 176 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sta bility class: 0 Hours of missing stability measurements in all stability classes 2 F-21 120 of 180

Zion Nuclear Station Period of Record: April - June 2012 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 3 1 0 5 NNE 0 1 29 40 10 1 81 NE 0 0 12 2 1 0 15 ENE 0 4 6 6 0 0 16 E 0 4 6 3 1 0 14 ESE 0 2 14 0 0 0 16 SE 0 2 7 4 0 0 13 SSE 0 0 0 0 0 0 0 S 0 0 0 1 0 0 1 SSW 0 0 0 1 3 2 6 SW 0 0 1 8 8 1 18 WSW 0 0 2 7 10 1 20 W 0 0 3 18 3 4 28 WNW 0 0 2 1 4 4 11 NW 0 0 1 4 2 0 7 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 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 ty class: 0 Hours of missing stability measurements in all sta bility cl asses: 2 F-22 121 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 3 1 1 6 NNE 0 0 11 4 1 0 16 NE 0 1 4 0 1 0 6 ENE 0 0 0 2 0 0 2 E 0 1 1 0 0 0 2 ESE 0 2 2 0 0 0 4 SE 0 1 0 0 0 0 1 SSE 0 0 0 0 1 0 1 S 0 0 0 3 0 0 3 SSW 0 0 0 2 1 0 3 SW 0 0 0 3 5 1 9 WSW 0 0 1 4 0 2 7 W 0 0 3 1 1 2 7 WNW 0 0 5 1 2 1 9 NW 0 0 3 4 0 0 7 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 5 31 27 13 7 83 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 F-23 122 of 180

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 F-24 123 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 4 8 27 39 14 93 NNE 1 7 24 37 35 3 107 NE 2 5 9 13 4 0 33 ENE 1 6 10 16 8 0 41 E 1 6 11 9 7 2 36 ESE 0 7 8 8 6 0 29 SE 1 8 17 9 0 0 35 SSE 0 3 14 15 5 0 37 S 0 3 3 12 5 1 24 SSW 0 4 4 8 12 3 31 SW 0 1 7 25 18 8 59 WSW 0 1 4 10 1 0 16 W 0 4 4 12 7 1 28 WNW 0 3 7 17 5 0 32 NW 0 2 5 16 3 0 26 NNW 0 3 7 14 0 0 24 Variable 0 0 0 0 0 0 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 F-25 124 of 180

Zion Nuclear Station Period of Record: April - June 2012 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph) wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 9 31 9 1 52 NNE 0 2 11 33 6 1 53 NE 0 3 14 7 4 0 28 ENE 2 3 16 2 4 0 27 E 0 8 9 1 5 0 23 ESE 1 4 12 6 6 0 29 SE 1 4 13 12 6 0 36 SSE 1 10 28 33 6 3 81 S 1 2 10 26 9 3 51 SSW 0 6 3 20 1 0 30 SW 0 0 7 17 1 1 26 WSW 1 4 4 19 0 0 28 W 0 0 3 11 6 1 21 WNW 0 2 7 24 2 0 35 NW 0 2 3 18 1 0 24 NNW 0 1 5 10 0 0 16 Variable 0 0 0 0 0 0 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 F-26 125 of 180

Zion Nuclear Station Period of Record: April - June 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 19-24 > 24 Total N 0 4 4 1 0 0 9 NNE 0 4 3 2 0 0 9 NE 0 0 4 2 0 0 6 ENE 0 1 4 2 4 0 11 E 0 6 7 5 1 1 20 ESE 0 3 4 6 1 1 15 SE 1 4 4 8 9 4 30 SSE 2 1 20 19 9 4 55 S 0 6 15 28 12 2 63 SSW 0 1 7 21 1 0 30 SW 0 0 3 12 3 0 18 WSW 0 2 2 8 5 0 17 W 0 0 4 0 4 0 8 WNW 0 2 3 2 0 0 7 NW 0 0 2 7 2 0 11 NNW 0 0 4 5 0 0 9 Variable 0 0 0 0 0 0 Total 3 34 90 128 51 12 318 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 F-27 126 of 180

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 0 2 NNE 0 0 NE 0 2 ENE 1 8 E 0 2 ESE 0 6 SE 1 4 SSE 2 13 S 26 55 SSW 31 43 SW 6 12 WSW 6 9 W 0 3 WNW 1 8 NW 2 3 NNW 0 6 Variable 0 0 Total 7 26 36 76 25 6 176 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 F-28 127 of 180

Zion Nuclear Station Period of Record: July - September 2012 Stability Class - Extremely Unstable - 25OFt-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Directio.n 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 2 5 0 0 8 NNE 0 6 33 8 0 0 47 NE 0 29 39 1 0 0 69 ENE 0 21 12 0 0 0 33 E 1 21 9 0 0 0 31 ESE 0 16 4 0 0 0 20 SE 0 20 13 0 0 0 33 SSE 1 22 0 0 23 S 2 1 2 0 0 5 SSW 0 3 0 0 0 3 SW 4 9 0 22 WSW 9 20 0 0 30 W 3 13 0 0 0 16 WNW 2 9 2 0 0 13 NW 6 12 0 0 0 18 NNW 0 2 0 0 0 2 Variable 0 0 0 0 0 0 Total 1 141 203 28 0 0 373 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 F-29 128 of 180

Zion Nuclear Station Period of Record: July - September 2012 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph) wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 3 1 0 0 5 NNE 7 1 0 9 NE 10 4 0 15 ENE 3 2 0 6 E 6 0 6 ESE 2 0 2 SE 5 0 5 SSE 5 12 19 S 2 0 3 SSW 1 5 7 SW 3 3 7 WSW 7 6 13 W 2 3 5 WNW 5 1 6 NW 4 8 12 NNW 0 3 4 Variable 0 0 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 F-30 129 of 180

Zion Nuclear Station Period of Record: July - September 2012 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 7 4 0 0 13 NNE 0 7 5 1 0 0 13 NE 0 12 12 2 0 0 26 ENE 1 9 5 0 0 0 15 E 0 9 2 0 0 0 11 ESE 0 2 0 0 0 0 2 SE 0 7 1 0 0 0 8 SSE 1 8 30 3 0 0 42 S 0 7 6 0 0 0 13 SSW 1 7 8 2 0 0 18 SW 0 4 4 4 0 0 12 WSW 1 7 6 0 0 0 14 W 1 9 1 0 0 0 11 WNW 1 3 4 0 0 0 8 NW 1 5 2 0 0 0 8 NNW 1 1 4 0 0 0 6 Variable 0 0 0 0 0 0 0 Total 8 99 97 16 0 0 220 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: 19 130 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 9 24 5 0 0 40 NNE 3 20 20 0 0 44 NE 4 18 14 0 0 38 ENE 2 16 9 0 0 32 E 6 14 3 0 0 25 ESE 5 8 0 0 0 13 SE 6 16 3 0 0 25 SSE 2 19 33 0 0 58 S 3 35 12 0 0 50 SSW 5 9 9 0 0 28 SW 9 17 18 0 0 46 WSW 3 16 17 0 0 36 W 1 11 12 0 0 24 WNW 5 26 4 0 0 37 NW 5 20 19 0 0 45 NNW 1 12 14 0 0 27 Variable 0 1 0 0 0 1 Total 62 267 211 29 0 0 569 Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 19 F-32 131 of 180

Zion Nuclear Station Period of Record: July - September 2012 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 N 6 19 26 8 0 0 0 NNE 5 19 32 1 0 0 0 NE 7 12 20 0 0 0 0 ENE 6 3 9 0 0 0 0 E 7 4 11 0 0 0 0 ESE 1 3 4 4 0 0 0 SE 7 2 13 ii 0 0 0 SSE 5 2 18 3 0 0 0 S 5 36 44 SSW 10 66 6 1 0 0 83 SW 9 30 17 0 0 0 56 WSW 12 46 5 0 0 0 63 W 10 23 5 0 0 0 38 WNW 11 21 1 1 0 0 34 NW 11 23 5 0 0 0 39 NNW 5 15 0 0 0 0 20 Variable 0 0 0 0 0 0 0 Total 117 324 67 2 0 0 510 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 19 F-33 132 of 180

Zion Nuclear Station Period of Record: July - September 2012 Stability Class - Moderately Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 1 0 0 0 3 NNE 2 1 0 0 0 3 NE 2 0 0 0 0 2 ENE 1 0 0 0 0 1 E 1 1 0 0 2 ESE 1 1 0 0 2 SE 0 1 0 0 1 SSE 1 1 0 0 2 S 4 1i 0 0 15 SSW 12 19 0 0 31 SW 13 9 0 0 22 WSW 19 13 0 0 32 W 35 22 0 0 57 WNW 10 15 0 0 25 NW 4 9 0 0 13 NNW 4 2 0 0 6 Variable 0 0 0 0 0 Total 111 106 0 0 0 0 217 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: 19 133 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 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 4 1 5 0 0 0 0 SW 2 9 11 0 0 0 0 WSW 23 27 50 0 0 0 0 W 22 43 65 0 0 0 0 WNW 5 20 25 0 0 0 0 NW 1 11 12 1 1 0 0 0 0 NNW 2 0 0 0 0 0 0 Variable 0 Total 58 112 0 0 0 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 Zion Nuclear Station F-35 134 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 2 1 4 8 NNE 3 23 19 7 2 54 NE 4 43 15 2 0 64 ENE 4 23 6 2 0 35 E 10 12 4 0 0 26 ESE 9 11 1 0 0 21 SE 0 29 8 0 0 37 SSE 0 13 6 0 0 19 S 0 1 2 1 0 4 SSW 0 0 3 0 1 4 SW 0 3 2 8 0 13 WSW 0 12 15 2 0 29 W 0 9 15 0 0 24 WNW 0 3 9 0 0 12 NW 0 9 8 3 0 20 NNW 0 1 2 0 0 3 Variable 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 0 2 1 0 4 NNE 0 3 4 3 1 0 11 NE 0 6 1 1 4 0 12 ENE 1 3 3 0 0 8 E 0 6 1 0 0 0 7 ESE 0 1 0 0 0 0 SE 0 1 4 " 1 0 0 6 SSE 0 1 12 3 0 1 17 S 0 1 1 0 1 0 3 SSW 0 0 2 2 2 1 7 SW 0 1 3 2 1 0 7 WSW 0 2 5 2 0 0 9 W 0 2 4 3 0 0 9 WNW 0 2 2 2 0 0 6 NW 0 5 .7 0 0 13 NNW 0 1 0 2 1 0 4 Variable 0 0 0 0 0 0 0 Total 1 32 47 30 12 2 124 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 F-37 136 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 1 6 4 1 13 NNE 0 2 7 4 2 1 16 NE 0 5 6 5 8 1 25 ENE 0 3 4 8 0 0 15 E 0 2 3 2 0 0 7 ESE 0 1 2 0 0 0 3 SE 0 1 6 3 0 0 10 SSE 1 1 25 11 1 0 39 S 0 2 5 5 1 0 13 SSW 0 1 6 6 2 1 16 SW 0 2 5 3 3 0 13 WSW 0 3 3 6 1 0 13 W 0 3 8 3 1 0 15 WNW 0 0 3 3 0 0 6 NW 0 3 4 3 0 0 10 NNW 0 1 1 4 0 0 6 Variable 0 0 0 0 0 0 0 Total 1 31 89 72 23 4 220 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 F-38 137 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 7 4 19 15 0 46 NNE 0 2 10 23 3 0 38 NE 0 4 10 19 4 1 38 ENE 0 7 10 5 9 3 34 E 3 5 13 2 5 0 28 ESE 1 9 6 2 0 0 18 SE 1 12 8 6 0 0 27 SSE 1 7 28 16 4 0 56 S 1 3 25 16 0 0 45 SSW 0 5 6 10 1 4 26 SW 2 6 9 7 11 0 35 WSW 0 6 8 18 7 0 39 W 0 3 9 21 1 0 34 WNW 0 4 7 14 1 1 27 NW 1 3 9 28 2 3 46 NNW 0 2 5 26 0 0 33 Variable 0 1 0 0 0 0 1 Total 11 86 167 232 63 12 571 Hours of calm in this stability class: 0 Hours of missing wind measurements in this s tability class: 0 Hours of missing stability measurements in a 11 stabil ity classes: 19 F-39 138 of 180

Zion Nuclear Station Period of Record: July - September 2012 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 10 11 26 NNE 15 20 41 NE 5 5 16 ENE 4 2 15 E 10 1 22 ESE 2 1 10 SE 8 1 18 SSE 8 8 23 S 12 36 54 SSW 13 35 56 SW 12 36 59 WSW 9 42 60 W 4 30 38 WNW 8 13 22 NW 15 22 39 NNW 4 8 15 Variable 0 0 0 Total 9 78 139 271 16 1 514 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: 19 139 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 0 2 2 0 0 6 NNE 2 4 5 1 0 0 12 NE 1 0 1 0 0 0 2 ENE 1 1 2 0 0 0 4 E 0 4 1 1 0 0 6 ESE 1 2 1 2 0 0 6 SE 0 1 1 0 0 0 2 SSE 2 3 5 1 0 0 11 S 1 5 9 13 0 0 28 SSW 2 5 12 13 1 0 33 SW 0 6 6 6 2 0 20 WSW 1 2 4 10 2 0 19 W 1 4 1 13 4 0 23 WNW 1 1 5 4 1 0 12 NW 3 3 7 11 1 0 25 NNW 1 0 4 3 0 0 8 Variable 0 0 0 0 0 0 0 Total 19 41 66 80 11 0 217 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: 19 140 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 3 6 5 0 0 15 NNE 0 3 6 0 0 0 9 NE 0 0 1 0 0 0 1 ENE 2 0 1 0 0 0 3 E 1 0 0 0 0 0 1 ESE 3 0 0 0 0 0 3 SE 0 1 0 0 0 0 1 SSE 2 1 1 0 0 0 4 S 1 0 1 0 0 0 2 SSW 1 5 2 3 0 0 11 SW 0 8 5 10 2 0 25 WSW 0 1 6 17 4 0 28 W 1 5 8 19 1 0 34 WNW 1 4 5 2 1 0 13 NW 1 3 5 3 0 0 12 NNW 2 3 1 2 0 0 8 Variable 0 0 0 0 0 0 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 F-42 141 of 180

Zion Nuclear Station Period of Record: October - December 2012 Stability Class - Extremely Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Directio:n 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 6 0 0 7 NNE 0 1 22 2 0 0 25 NE 0 4 4 0 0 9 ENE 2 3 0 0 0 5 E 0 1 0 0 0 0 1 ESE 0 1 0 0 0 0 1 SE 0 4 0 0 0 0 4 SSE 0 2 8 0 0 11 S 0 0 4 0 0 5 SSW 0 0 4 14 0 0 18 SW 0 7 7 0 0 15 WSW 0 6 4 4 0 0 14 W 0 6 6 3 0 0 15 WNW 0 4 7 0 0 12 NW 0 2 7 0 0 0 9 NNW 0 0 7 0 0 8 Variable 0 0 0 0 0 0 0 Total 0 34 84 41 0 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 F-43 142 of 180

Zion Nuclear Station Period of Record: October - December 2012 Stability Class - Moderately Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 0 0 1 NNE 0 2 4 0 0 0 6 NE 0 2 0 0 0 0 2 ENE 0 2 2 0 0 0 4 E 0 1 1 0 0 0 2 ESE 0 0 1 0 0 0 1 SE 0 1 0 0 0 0 1 SSE 0 4 5 1 0 0 i0 S 0 0 3 2 0 0 5 SSW 0 3 3 3 0 0 9 SW 0 1 5 2 1 0 9 WSW 0 2 1 2 0 0 5 W 0 2 2 0 0 0 4 WNW 0 2 2 2 1 0 7 NW 0 2 6 0 0 0 8 NNW 0 2 1 2 0 0 5 Variable 0 0 0 0 0 0 0 Total 0 26 36 15 2 0 79 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sta bility class: 0 Hours of missing stability measurements in all stability class es: 2 F-44 143 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 6 1 0 0 10 NNE 0 2 7 0 0 0 9 NE 0 4 1 1 0 0 6 ENE 0 2 0 0 0 0 2 E 0 5 1 0 0 0 6 ESE 3 3 0 0 0 0 6 SE 2 3 0 0 0 0 5 SSE 0 7 5 2 1 0 15 S 1 6 5 1 0 0 13 SSW 0 3 5 10 0 0 18 SW 0 2 7 3 0 0 12 WSW 0 2 5 1 0 0 8 W 0 5 8 2 0 0 15 WNW 1 1 7 2 0 0 11 NW 1 7 9 1 0 0 18 NNW 0 4 6 3 0 0 13 Variable 0 0 0 0 0 0 0 Total 9 58 72 27 0 167 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 F-45 144 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 13 15 8 36 NNE 5 15 17 11 48 NE 4 16 11 9 42 ENE 1 11 11 5 29 E 2 9 10 9 36 ESE 1 11 3 15 33 SE 3 9 2 1 15 SSE 0 11 20 17 55 S 2 19 33 3 60 SSW 4 42 40 21 113 SW 7 22 50 33 112 WSW 12 17 22 1 52 W 12 27 46 13 98 WNW 11 36 37 9 93 NW 10 42 44 19 123 NNW 1 32 52 21 106 Variable 0 0 0 0 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 F-46 145 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 6 13 5 0 0 0 24 NNE 3 13 2 0 0 0 18 NE 3 1 0 0 0 4 ENE 2 2 0 0 0 0 4 E 3 3 0 0 0 0 6 ESE 3 2 0 0 0 0 5 SE 4 2 0 0 0 6 SSE 2 10 8 0 0 0 20 S 8 67 22 2 0 0 99 SSW 9 47 26 0 0 82 SW 10 26 12 2 0 0 50 WSW 8 15 2 0 0 0 25 W 7 32 16 0 0 0 55 WNW 7 32 10 0 0 0 49 NW 7 48 1 0 0 0 56 NNW 2 26 6 0 0 0 34 Variable 0 0 0 0 0 0 0 Total 84 339 110 4 0 0 537 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stabili ty class: 0 Hours of missing stability measurements in all sta bility cl asses: 2 F-47 146 of 180

Zion Nuclear Station Period of Record: October - December 2012 Stability Class - Moderately Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 NNE 0 1 NE 0 0 ENE 0 1 E 0 0 ESE 0 1 SE 2 4 SSE 2 6 S 28 45 SSW 8 14 SW 15 21 WSW 6 10 W 5 9 WNW 0 2 NW 18 21 NNW 3 4 Variable 0 0 Total 31 87 21 0 0 140 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 F-48 147 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 NNE 0 1 NE 0 0 ENE 0 0 E 0 0 ESE 0 0 SE 0 0 SSE 1 3 S 4 ii SSW 1 5 SW 12 16 WSW 6 14 W 1 5 WNW 1 7 NW 1 6 NNW 1 1 Variable 0 0 Total 35 28 7 0 0 0 70 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-49 148 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 7 NNE 14 11 28 NE 3 1 7 ENE 2 2 4 E 0 0 1 ESE 0 0 1 SE 6 0 6 SSE 1 3 6 S 1 5 6 SSW 3 2 19 SW 2 6 13 WSW 6 0 9 W 11 0 21 WNW 7 5 13 NW 2 6 8 NNW 2 6 10 Variable 0 0 0 Total 0 14 60 48 26 11 159 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 F-50 149 of 180

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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 1 NNE 0 2 0 0 6 NE 0 0 0 0 2 ENE 0 2 0 4 E 0 1 0 0 ESE 0 0 0 0 2 SE 0 1 0 0 2 SSE 0 0 1 0 6 S 0 4 0 2 8 SSW 0 1 2 0 6 SW 0 4 2 1 10 WSW 0 0 1 0 5 W 0 0 1 5 WNW 0 2 0 3 6 NW 0 6 0 0 10 NNW 0 1 0 2 5 Variable 0 0 0 0 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 F-51 150 of 180

Zion Nuclear Station Period of Record: October - December 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 Total N 0 3 12 NNE 0 4 10 NE 0 3 6 ENE 1 2 4 E 1 2 5 ESE 1 0 6 SE 0 1 5 SSE 0 2 9 S 0 10 16 SSW 0 5 14 SW 0 3 16 WSW 0 1 5 W 0 3 17 WNW 0 1 12 NW 0 7 20 NNW 0 4 10 Variable 0 0 0 Total 3 35 51 51 18 9 167 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 F-52 151 of 180

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 2 12 18 12 2 46 NNE 3 12 15 4 8 43 NE 4 15 11 2 9 42 ENE 3 16 8 2 3 33 E 4 4 11 7 6 33 ESE 10 5 1 14 6 36 SE 4 13 3 1 3 25 SSE 1 9 13 11 7 42 S 1 18 26 16 2 63 SSW 6 25 33 21 11 97 SW 8 23 38 39 10 118 WSW 7 10 21 6 0 44 W 9 20 45 15 9 99 WNW 10 21 29 18 1 79 NW 14 27 43 24 19 128 NNW 0 38 57 20 5 120 Variable 0 0 0 0 0 0 Total 9 86 268 372 212 101 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 F-53 152 of 180

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 16 10 3 33 NNE 10 4 0 18 NE 6 1 0 12 ENE 3 0 0 6 E 3 0 0 7 ESE 4 1 0 11 SE 4 2 0 8 SSE 12 16 5 39 S 16 40 13 72 SSW 15 43 9 70 SW 19 28 9 64 WSW 10 9 0 22 W 7 24 0 35 WNW 11 32 1 45 NW 8 32 4 45 NNW 4 40 2 49 Variable 0 0 0 0 Total 7 53 148 282 46 0 536 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 2 F-54 153 of 180

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 19-24 > 24 Total 0 0 12 N 5 0 0 6 NNE 1 0 0 1 NE 0 0 0 2 ENE 0 0 0 0 E 0 0 0 1 ESE 0 0 0 2 SE 1 SSE 8 1 0 13 S 25 8 0 43 SSW 10 3 0 20 SW 7 3 0 12 WSW 8 0 0 11 W 4 0 0 7 WNW 3 0 0 5 NW 0 0 0 0 NNW 5 0 0 6 Variable 0 0 0 0 Total 8 40 77 15 0 141 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 Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 NNE 1 0 2 NE 0 0 4 ENE 0 0 2 E 0 0 2 ESE 0 0 1 SE 0 0 3 SSE 0 0 0 S 0 11 SSW 2 0 8 SW 6 11 0 23 WSW 3 7 0 10 W 0 0 0 0 WNW 2 0 0 2 NW 0 0 0 0 NNW 0 0 0 0 Variable 0 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 ity class: 0 Hours of missing stability measurements in all st ability classes: 2 F-56 155 of 180

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 Location and Direction Tables Table A-1 Radiological Groundwater Protection Program - Sampling Locations and Distance, Zion Nuclear Power Station, 2012 Figures Figure A-1 Radiological Groundwater Protection Program Groundwater and Surface Water Locations of the Zion Nuclear Power Station, 2012 Appendix B Data Tables Tables Table B-1.1 Concentrations of Tritium, Strontium, Gross Alpha, and Gross Beta in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

Table B-1.2 Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

Table B-1.3 Concentrations of Iron-55 and Nickel-63 in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

Table B-11.1 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

Table B-11.2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2012.

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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.

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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.

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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 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:

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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.

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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) 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 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.

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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).

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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.

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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 Distance MW-ZN-01S Monitoring Well Permanent On-Site MW-ZN-02S Monitoring Well Permanent On-Site MW-ZN-03S Monitoring Well Permanent On-Site MW-ZN-04S Monitoring Well Permanent On-Site MW-ZN-05S Monitoring Well Permanent On-Site MW-ZN-06S Monitoring Well Permanent On-Site MW-ZN-07S Monitoring Well Permanent On-Site MW-ZN-08S Monitoring Well Permanent On-Site MW-ZN-09S Monitoring Well Permanent On-Site MW-ZN-10S Monitoring Well Permanent On-Site MW-ZN-11S Monitoring Well Permanent On-Site SW-ZN-01 Surface Water Lake Michigan On-Site A-I 172 of 180

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 A-2 173 of 180

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 8.6 +/- 1.4 < 1.7 MW-ZN-01S 06/07/12 < 157 < 0.7 < 1.0 < 0.4 7.7 +/- 1.3 < 1.4 MW-ZN-01S 09/18/12 < 173 0.7 < 1.3 < 1.3 8.5 1.8 MW-ZN-01S 10/01/12 < 197 0.4

1.3

0.9 8.3 1.7 MW-ZN-02S 02/14/12

176 0.7

1.0

0.6 18.9 1.7 MW-ZN-02S 06/07/12

161 0.7

0.9

0.4 19.6 1.4 MW-ZN-02S 09/18/12

170 0.8

1.5

1.3 21.4 1.7 MW-ZN-02S 10/01/12

192 0.8

1.2

0.9 19.3 1.7 MW-ZN-03S 02/14/12 < 172 0.7 < 1.1

0.5 9.2 1.9 MW-ZN-03S 06/07/12

159 0.7 < 1.1

0.4 9.1 1.6 MW-ZN-03S 09/18/12

170 0.8 < 1.1

1.3 9.4 1.8 MW-ZN-03S 10/01/12

193 0.7

1.3

0.9 9.1 1.7 MW-ZN-04S 02/16/12

173 0.7

0.7

0.5 10.2 1.9 MW-ZN-04S 06/07/12

159 0.8

0.9

0.4 6.7 1.6 MW-ZN-04S 09/18/12

168 0.8

1.2

1.3 11.7 1.7 MW-ZN-04S 10/01/12

191 0.5 < 1.4

0.8 11.2 1.6 MW-ZN-05S 02/15/12

173 0.6

0.7

0.5 2.6 1.9 MW-ZN-05S 06/08/12

161 0.7

1.0 < 0.4 4.3 1.6 MW-ZN-05S 09/19/12

170 0.8 < 1.1

1.3 3.9 1.7 MW-ZN-05S 10/02/12

193 0.5

0.7

0.8 4.6 1.6 MW-ZN-06S 02/15/12 < 97 MW-ZN-06S 06/08/12

171 MW-ZN-06S 09/20/12

170 MW-ZN-06S 10/02/12

190 MW-ZN-07S 02/15/12

174 MW-ZN-07S 06/08/12

168 MW-ZN-07S 09/20/12

167 MW-ZN-07S 10/02/12

195 MW-ZN-08S 02/15/12

171 0.7

0.8

0.5 4.3 1.9 MW-ZN-08S 06/08/12

170 0.7

1.0

0.4 6.0 1.6 MW-ZN-08S 09/20/12

170 0.7

1.9

1.3 5.4 1.7 MW-ZN-08S 10/02/12

189 0.5

0.7

0.8 5.1 1.6 MW-ZN-09S 02/16/12

174 0.7

0.8

0.4 5.6 2.2 MW-ZN-09S 06/07/12

171 0.7

0.7

0.5 5.4 1.7 MW-ZN-09S 09/19/12

170 0.9

1.0

1.0 8.7 1.6 MW-ZN-09S 10/03/12

192 0.5 < 1.1

0.7 9.1 1.6 MW-ZN-10S 02/16/12

175 0.6

1.0

0.4 7.2 2.2 MW-ZN-10S 06/07/12

170 0.8

0.9

0.5 8.4 1.7 MW-ZN-10S 09/19/12

194 0.9

0.9

1.0 8.4 1.6 MW-ZN-10S 10/01/12

187 0.8 < 1.1

0.7 6.7 1.6 MW-ZN-11S 02/15/12

182 0.8 < 1.1

0.4 9.7 2.2 MW-ZN-11S 06/08/12

170 0.8

0.9

0.5 7.7 1.7 MW-ZN-11 S 09/19/12

173 0.7

1.4

1.0 7.9 1.6 MW-ZN-11 S 10/02/12

191 0.5

1.3

0.7 8.4 1.6 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 < 46 < 66 <4 <4 < 10 <4 <8 <5 <8 <4 <4 <45 < 11 MW-ZN-01S 06/07/12 < 69 < 119 <6 <6 <14 <7 '12 <7 <11 <7 <6 <46 < 17 MW-ZN-01S 09/18/12

42 < 87 <4 <5 ' 12 <4 <10 <5 <10 <5 <5 < 36 < 10 MW-ZN-01S 10/01/12 < 59 < 55 <5 <5 *12 <6 <14 <8 <13 <5 <5 <48 < 13 MW-ZN-02S 02/14/12 < 44 < 37 <4 <5 <10 <5 <9 <5 <8 <4 <4 '41 < 11 MW-ZN-02S 06/07/12

60 < 67 <8 <7 '14 <8 <16 <7 <12 <8 <7 < 50 < 14 MW-ZN-02S 09/18/12 < 48 < 41 <5 <5 <12 <5 <10 <5 <10 <5 <5 ' 41 < 12 MW-ZN-02S 10/01/12

70 < 79 <9 < 10 < 13 < 10 <11 <10 <13 <8 <6 ' 64 < 16 MW-ZN-03S 02/14/12 < 37 < 79 <4 <4 <9 <4 <7 <5 <8 <3 <4 < 39 < 11 MW-ZN-03S 06/07/12 < 47 < 56 <6 <5 <10 <6 <13 <6 <11 <6 <8 < 32 < 15 MW-ZN-03S 09/18/12 < 57 < 48 <5 <6 <13 <5 <9 <5 <12 <5 <6 <40 < 12 MW-ZN-03S 10/01/12 < 80 < 79 <6 <7 <16 <7 <17 <9 '15 <7 <6 ' 57 < 21 MW-ZN-04S 02/16/12 < 38 < 37 <3 <5 <8 <4 <6 <5 <8 <3 <4 ' 34 < 11 MW-ZN-04S 06/07/12 < 81 < 200 <8 <9 < 19 < 12 <17 <8 <12 <6 <9 < 52 < 18 MW-ZN-04S 09/18/12

59 < 59 <5 <5 <12 <4 <9 <7 <10 <5 <5 < 42 < 14 MW-ZN-04S 10/01/12 < 57 < 119 <7 <6 <18 <6 <11 <7 <11 <7 <8 < 51 < 19 MW-ZN-05S 02/15/12 < 38 < 75 <4 <4. <9 <3 <8 <4 <7 <3 <4 < 36 < 10 MW-ZN-05S 06/08/12 < 48 < 114 <5 <5 <11 <5 <10 <6 <9 <5 <6 < 32 < 10 MW-ZN-05S 09/19/12 < 65 < 154 <6 <6 <16 <7 <14 <9 <16 <8 <8 < 53 < 16 MW-ZN-05S 10/02/12 < 90 < 66 <10 <9 ' 24 <9 < 19 < 10 <19 <8 <10 < 64 < 23 MW-ZN-06S 02/15112 < 47 < 94 <4 <5 '12 <5 <10 <5 <10 <4 <5 < 46 < 12 MW-ZN-06S 06/08/12 < 57 < 47 <6 <6 '12 <6 <13 <7 <13 <5 <6 < 33 < 10 MW-ZN-06S 09/20/12 < 67 < 67 <6 <8 <16 <7 <14 <8 <11 <5 <6 <48 < 11 MW-ZN-06S 10/02/12 ' 69 < 117 <7 <7 <14 <7 <17 <8 <12 <6 <7 < 47 < 17 MW-ZN-07S 02/15/12 < 38 < 69 <4 <4 <9 <4 <8 <4 <9 <3 <4 < 41 < 10 MW-ZN-07S 06/08/12 < 50 < 111 <5 <6 <16 <6 <8 <6 <11 <7 <5 <31 <13 MW-ZN-07S 09/20/12 < 60 < 106 <5 <8 '12 <5 <12 <7 <9 <5 <6 <43 < 12 MW-ZN-07S 10/02/12 < 66 < 57 <5 <7 <13 <7 <13 <7 <14 <6 <7 < 38 < 13 MW-ZN-08S 02/15/12 < 43 < 89 <4 <5 <11 <4 <9 <5 <8 <4 <5 < 46 < 13 MW-ZN-08S 06/08/12 < 57 < 49 <5 <6 <13 <6 <10 <6 <10 <6 <6 <29 < 10 MW-ZN-08S 09/20/12 < 52 < 106 <7 <5 <15 <7 <10 <7 <10 <5 <6 <42 < 13 MW-ZN-08S 10/02/12 < 63 < 120 <6 <5 <14 <7 <11 <8 '15 <7 <6 <40 < 16 MW-ZN-09S 02/16/12 < 41 < 71 <3 <4 <9 <4 <8 <5 <8 <3 <4 < 38 < 11 MW-ZN-09S 06/07/12 <64 < 66 <7 <6 < 14 <5 <13 <7 <12 <6 <7 < 39 < 13 MW-ZN-09S 09/19/12 < 73 < 59 <5 <6 <16 <8 <11 <6 <11 <6 <8 '42 < 11 MW-ZN-09S 10/03/12 ' 37 < 37 <3 <5 <6 <4 <7 <4 <7 <3 <5 <22 < 11 MW-ZN-10S 02/16/12 < 48 < 103 <5 <5 <11 <3 <11 <6 <9 <4 <5 < 41 < 16 MW-ZN-10S 06/07/12 < 47 < 110 <6 <6 <10 <7 <15 <5 <13 <5 <6 < 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 SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 DATE MW-ZN-10S 09/19/12 < 58 < 67 <7 <7 <15 <6 <14 <8 <11 <6 <8 <42 < 15 MW-ZN- 10S 10/01/12 < 70

118 <7 <7 <15 <8 <13 <9 <13 <8 <7 <49

16 MW-ZN- 11S 02/15/12 < 43 < 39 <4 <5 <10 <4 <9 <5 <7 <4 <4 <42 < 11 MW-ZN-11S 06/08/12 < 46 < 67 <4 <5 <7 <5 <8 <5 <9 <5 <4 <27 <9 MW-ZN-11 S 09/19/12 < 75 < 55 <7 <8

15 <17 <9 <17 <8 <9 <54 < 21 MW-ZN-i 1S 10/02/12 < 71 < 133 <6 <7

13 <14 <8 <12 <6 <6 <48

17 0-00

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 COLLECTION Fe-55 Ni-63 DATE MW-ZN-01S 02/14/12

182 MW-ZN-01S 06/07/12 < 64 MW-ZN-01S 09/18/12 < 66 MW-ZN-01S 10/01/12 < 95 MW-ZN-02S 02/14/12

126 MW-ZN-02S 06/07/12 < 73 MW-ZN-02S 09/18/12

110 MW-ZN-02S 10/01/12

105 MW-ZN-03S 02/14/12

200 MW-ZN-03S 06/07/12

112 MW-ZN-03S 09/18/12 < 111 MW-ZN-03S 10/01/12

78 MW-ZN-04S 02/16/12

140 MW-ZN-04S 06/07/12

58 MW-ZN-04S 09/18/12

65 MW-ZN-04S 10/01/12

91 MW-ZN-05S 02/15/12

145 MW-ZN-05S 06/08/12 < 94 MW-ZN-05S 09/19/12

145 MW-ZN-05S 10/02/12

81 MW-ZN-08S 02/15/12

197 MW-ZN-08S 06/08/12

29 MW-ZN-08S 09/20/12

146 MW-ZN-08S 10/02/12

155 MW-ZN-09S 02/16/12

71 MW-ZN-09S 06/07/12

152 MW-ZN-09S 09/19/12

64 MW-ZN-09S 10/03/12

108 MW-ZN-10S 02/16/12

158 MW-ZN-10S 06/07/12

81 MW-ZN-10S 09/19/12

81 MW-ZN-10S 10/01/12 < 127 MW-ZN-1 1S 02/15/12 < 131 MW-ZN-1 iS 06/08/12 < 98 MW-ZN-11S 09/19/12 < 88 MW-ZN-1 iS 10/02/12 < 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 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 DATE SW-ZN-01 02/15/12 < 26 < 51 <2 <3 <7 <3 <5 <3 <5 <2 <3 <27 <9 SW-ZN-01 06/07/12 < 57 < 95 <5 <6 <10 <9 <10 <7 <9 <6 <6 <40 < 14 SW-ZN-01 09/18/12 < 80 < 128 < 10 <9 <19 <6 <15 <10 <15 <7 <9 <59 < 24 SW-ZN-01 10/01/12 < 47 < 86 <4 <5 <13 <6 <9 <5 <10 <5 <4 <36 < 12 00 C) 00 00

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