Text

Independent Spent Fuel Storage Installation 2013 Annual Radiological Environmental Operating Report
	ML14133A299
Person / Time
Site:	Zion File:ZionSolutions icon.png
Issue date:	05/12/2014
From:	Gerard van Noordennen; ZionSolutions
To:	; Document Control Desk, NRC/FSME
References
	ZS-2014-0101
	Download: ML14133A299 (183)
	v • d • e

ZIONSOLUTIONSLLC An EnergySduntonsCompany May 12, 2014 ZS-2014-0101 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, 50-304 and 72-1037

Subject:

Zion Nuclear Power Station, Units 1, 2 and Independent Spent Fuel Storage Installation 2013 Annual Radiological Environmental Operating Report In accordance with Facility Operating License Nos. DPR-39 and DPR-48, Appendix A, Technical Specification 5.7.2 "Annual Radiological Environmental Operating Report" and Certificate of Compliance No. 1031 of the MAGNASTOR SYSTEM, Appendix A, Technical Specification Section 5.1.3, Zion Station is submitting the 2013 Annual Radiological Environmental Operating Report for Units 1, 2 and Independent Spent Fuel Storage Installation (ISFSI). Technical Specification 5.7.2 requires submittal of an Annual Radiological Environmental Operating Report before May 15 of each year. Technical Specification 5.1.3 requires submittal of an Annual Radiological Environmental Operating Report that may be included in the report for Zion Station Units 1 and 2. The attachment to this letter is the Annual Radiological Environmental Operating Report and includes the ISFSI environmental monitoring program.

There are no new regulatory commitments in this submittal.

If you have any questions about this submittal please contact Mr. Christopher Keene at (224)789-4073.

Respectfully, Gerard van Noordennen Vice President of Regulatory Affairs ZionSolutions, LLC

Attachment:

2013 Annual Radiological Environmental Operating Report cc: John Hickman, U.S. NRC Senior Project Manager Service List 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:

Alan Parker Russ Workman President Projects Group General Counsel EnergySolutions EnergySolutions 1009 Commerce Park Drive, Ste. 100 423 West 300 South, Ste. 200 Oak Ridge, TN 37830 Salt Lake City, UT 84101 John Sauger Alwyn C. Settles Senior VP & General Manager Section Head, Nuclear Facility Inspection ZionSolutions, LLC Bureau of Nuclear Facility Safety 101 Shiloh Boulevard Illinois Emergency Management Agency Zion, IL 60099 1011 North St., PO Box 250 Mazon, IL 60444 Gary Bouchard VP Ops, Engineering, and Kent McKenzie Decommissioning Plant Manager Emergency Management Coordinator ZionSolutions, LLC Lake County Emergency Management Agency 101 Shiloh Boulevard 1303 N. Milwaukee Avenue Zion, IL 60099 Libertyville, IL 60048-1308 Gerard van Noordennen Regional Administrator VP Regulatory Affairs U.S. NRC, Region III ZionSolutions, LLC 2443 Warrenville Road 101 Shiloh Boulevard Lisle, IL 60532-4352 Zion, IL 60099 John E. Matthews Dan Shrum Morgan, Lewis & Bockius LLP Senior VP Regulatory Affairs 1111 Pennsylvania Avenue, NW EnergySolutions Washington, DC 20004 423 West 300 South, Ste. 200 Salt Lake City, UT 84101

NRC Docket No: 50-295 50-304 72-1037 ZION NUCLEAR POWER STATION UNITS 1 and 2 Annual Radiological Environmental Operating Report 1 January Through 31 December 2013 Prepared By Teledyne Brown Engineering Environmental Services ZIONSOLUTIONS.,

Zion Nuclear Power Station Zion, IL 60099 May 2014 Page I of 181

Table Of Contents I. Sum m ary and Conclusions .......................................................................................... 1 II. Introduction ............................................................................................................. 3 A. Objectives of the REM P .................................................................................. 3 B. Im plem entation of the Objectives .................................................................. 3 I1l. Program Description ................................................................................................ 3 A. Sam ple Collection ........................................................................................... 3 B. Sam ple Analysis .............................................................................................. 5 C. Data Interpretation ......................................................................................... 5 D. Program Exceptions ....................................................................................... 7 E. Program Changes ......................................................................................... 9 IV. Results and Discussion ........................................................................................... 9 A. Aquatic Environm ent ....................................................................................... 9

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

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

3. Sedim ent ............................................................................................ 10 B. Atmospheric Environment ........................................................................... 10

1. Airbom e .............................................................................................. 10

a. Air Particulates ......................................................................... 10 C. Am bient Gam m a Radiation ........................................................................... 11 D. Land Use Survey .......................................................................................... 11 F. Summary of Results - Inter-laboratory Comparison Program ..................... 13 Page 2 of 181

Appendices Appendix A Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for the Zion Nuclear Power Station, 2013 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, 2013 Table B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2013 Figures Figure B-1 Inner Ring TLD and Fixed Air Sampler Locations of the Zion Nuclear Power Station, 2013 Figure B-2 Outer Ring TLD and Fixed Air Sampler Locations of the Zion Nuclear Power Station, 2013 Figure B-3 Fish, Water and Sediment Sampling Locations of the Zion Nuclear Power Station, 2013 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, 2013 Table C-1.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table C-1.3 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table C-I1.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table C-111.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

ii Page 3 of 181

Table C-IV.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

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, 2013.

Table C-IV.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table C-V.1 Quarterly TLD Results for Zion Nuclear Power Station, 2013.

Table C-V.2 Mean Quarterly TLD Results for the Inner Ring, ISFSI Inner Ring, Outer Ring, Other and Control Locations for Zion Nuclear Power Station, 2013.

Table C-V.3 Summary of the Ambient Dosimetry Program for Zion Nuclear Power Station, 2013.

Figqures Figure C-1 Public Water - Gross Beta - Stations Z-1 4 and Z-1 5 Collected in the Vicinity of ZNPS, 2000 - 2013.

Figure C-2 Public Water - Gross Beta - Stations Z-1 6 and Z-1 8 Collected in the Vicinity of ZNPS, 2000 - 2013.

Figure C-3 Public Water - Tritium - Stations Z-1 4 and Z-1 5 Collected in the Vicinity of ZNPS, 2000 - 2013.

Figure C-4 Public Water - Tritium - Stations Z-1 6 and Z-1 8 Collected in the Vicinity of ZNPS, 2000 - 2013.

Figure C-5 Air Particulates - Gross Beta - Stations Z-01 and Z-02 Collected in the Vicinity of ZNPS, 2000 - 2013.

Figure C-6 Air Particulate - Gross Beta - Stations Z-03 and Z-1 3 Collected in the Vicinity of ZNPS, 2000 - 2013.

Appendix D Inter-Laboratory Comparison Program Tables Table D-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2013 Table D-2 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2013 Table D-3 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2013 iii Page 4 of181

Table D-4 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2013 Table D-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2013 Appendix E Effluent Data Appendix F Meteorological Data Appendix G Annual Radiological Groundwater Protection Program Report (ARGPPR) iv Page 5 of 181

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 2013 through 31 December 2013. During that time period, 559 analyses were performed on 480 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-1 37 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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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 Technologies and Environmental Inc. (Midwest Labs) on samples collected during the period 1 January 2013 through 31 December 2013.

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 Page 8 of 181

samples for the ZNPS REMP in 2013. 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, longnose sucker, burbot and largemouth 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 four locations (Z-01, Z-02, Z-03, and Z-13). The control location was Z-13. 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:

Inner Ring: 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, and Z-115 Other: Z-01, Z-02, Z-03 ISFSI Inner Ring: Z-121, Z-122, Z-123, Z-124, Z-125 Outer Ring: Z-209, Z-211, Z-212, Z-213, Z-214, Z-215, Z-216 Page 9 of 181

Control: Z-13 The specific TLD locations were determined by the following criteria:

1. The presence of relatively dense population;

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 2013. 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 Page 10 of 181

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:

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 Reportingq 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.

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D. Program Exceptions For 2013 the ZNPS REMP had a sample recovery rate in excess of 99%.

Sample anomalies and missed samples are listed in the tables below:

Table D-1 LISTING OF SAMPLE ANOMALIES Sample Location Collection Reason Type Code Date TLD Z-301-2 01/02/13 1St quarter TLD misplaced at quarterly exchange; station gave collector spare to place in field.

Station located misplaced TLD and changed out spare on 01/03/13.

AP Z-01 03/06/13 Road blocked by snow; collector unable to access sampler. AP collected 03/07/13.

AP Z-03 03/06/13 Road blocked by snow; collector unable to access sampler. AP collected 03/07/13.

AP Z-01 04/10/13 Collector inadvertently placed double filters on 04/03/13, causing low flow rate reading on 50 CFH due to decreased draw. Filter slightly lighter than other locations.

AP Z-13 04/10/13 Low reading of 147.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months due to recent startup on 04/04/13 @ 9:40.

AP Z-01 04/17/13 Low flow rate due to FLR not reset on 04/10/13.

PW Z-14 05/15/13 Water plant shut down on 05/15/13; collector obtained sample on 05/16/13.

AP Z-01 10/16/13 No apparent reason for low reading of 86.7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months .

AP Z-02 10/30/13 No apparent reason for low reading of 75.7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months .

AP Z-01 12/04/13 No apparent reason for low reading of 160.7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months .

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Table D-2 LISTING OF MISSED SAMPLES After TLD's were collected for Quarter 3, six locations (12 type 17 Environmental TLD's) were inadvertently sent through airmail for expedited readings. The reason the shipment was expedited was to verify that hand held micro-R meters were over-responding to low energy gammas; however, the data was lost after the TLD's travelled through shipping X-ray machines. The remainder of the quarterly TLD reads were shipped properly and an additional set of TLD's including control TLD's were placed and collected monthly to compensate for the anomalous data. This event was reported and managed through Zion station Corrective Action Program listed under CR-2013-001198.

The following TLD locations for Quarter 3 cannot be used as they were exposed to shipping X-rays.

Designation Descriptive location Z-1 3-1,2 Control TLDs Z-122-1,2 NW of ISFSI pad Z-123-1,2 NE of ISFSI pad Z-124-1,2 SW of ISFSI pad @ property boundary Z-125-1,2 SE of ISFSI pad @ property boundary Z-01-1,2 South Air sample location Z-122-125 were being used to determine seasonal background dose for the ISFSI pad. No fuel was present on the pad at the time of the anomaly.

Sector data from TLD locations: Z-110-1&2, Z-111-1&2, and Z-112-1&2 covering sectors J,K,L,M were shipped normally and these locations effectively cover Zion station fence line direct radiation dose in the sectors affected by the anomalous data.

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.

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E. Program Changes

1. Air particulate location Z-1 3 was added to the REMP in April of 2013.

2. Three groups of TLDs were added to the REMP in 2013:

1. ISFSI Inner Ring (five locations)

2. Outer Ring (seven locations)

3. Control (one location)

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 27 of 48 samples. The values ranged from 2.0 pCi/I to 4.0 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 Page 14 of 181

trout, longnose sucker, burbot and largemouth 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.

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 56 E-3 pCi/m 3 with a mean of 18 E-3 pCi/m 3 . The results from the Control location 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 2013 air particulate data with previous years data indicate no effects from the operation of ZNPS.

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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 and LiF) thermoluminescent dosimeters. Sixty 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 38 mR/quarter.

D. Land Use Survey A Land Use Census conducted during August 2013 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 ft2 in each of the sixteen 22 1/2 degree sectors around the site. It was identified in 2012 while reviewing the results of the land use census that only the nearest resident was being reviewed and no formal review for milk producing animal or garden of greater than 500 ft2 was being performed nor had they been performed since the year 2000. Exelon performed a justification for not performing these reviews in 2000. This does not meet the intent of NUREG-1 301 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 sectors 2013 the around andsite.

future Theyears in each results of thisofsurvey the sixteen 22 2 degreebelow.

are summarized Page 16 of 181

Distance in Miles from ZS Sector Residence Garden Milk Farm Miles Miles Miles N 2.5 3.4 >10 NNE NE ENE E

ESE SE SSE S

SSW 1.9 >10 >10 SW 1.1 4.8 >10 WSW 1.0 3.0 >10 W 1.1 2.9 >10 WNW 1.0 2.7 >10 NW 1.0 3.2 >10 NNW 1.3 3.5 >10 E. Errata Data Errata Data for Unmonitored Release/Release Potential 1995 - 2009 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 ZionSolutions becoming the lincensee of 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 1995 and 2009 due to this unmonitored path.

Engineering determined the calculated 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, however a conservative percentage of one percent was used for correcting dose impact to the public. After adding the one percent increase calculation correction, Zion Solutions is still well within limits.

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For a detailed report of changes, please see the ZionSolutions Annual Radiological Effluent Release Report for 2013.

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.

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 spebified 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.

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For the TBE laboratory, 178 out of 185 analyses performed met the specified acceptance criteria. Seven analyses (Sr-89 and Sr-90 in milk, Co-57, Zn-65 and Sr-90 in soil, Cs-134 in air particulate and Sr-90 in vegetation [two low warning in a row]) did not meet the specified acceptance criteria or internal QA requirements for the following reason:

1. Teledyne Brown Engineering's Analytics September 2013 Sr-89 in milk result of 63.9 pCi/L was lower than the known value of 96.0 pCi/L. The failure was a result of analyst error and was specific to the Analytics sample. Client samples for the associated time period were evaluated and no client samples were affected by this failure. NCR 13-15

2. Teledyne Brown Engineering's Analytics September 2013 Sr-90 in milk result of 8.88 pCi/L was lower than the known value of 13.2 pCi/L. The failure was a result of analyst error and was specific to the Analytics sample. Client samples for the associated time period were evaluated and no client samples were affected by this failure. NCR 13-15

3. & 4.Teledyne Brown Engineering's MAPEP September 2013 Co-57 and Zn-65 in soil were evaluated as failing the false positive test.

While MAPEP evaluated the results as failures, the gamma software listed the results as non identified nuclides. The two nuclides would never have been reported as detected nuclides to a client. MAPEP does not allow laboratories to put in qualifiers for the submitted data nor "less than" results. MAPEP evaluates results based on the relationship between the activity and the uncertainty. MAPEP spiked the soil sample with an extremely large concentration of Eu-I 52, which was identified by the gamma software as an interfering nuclide, resulting in forced activity results that were evaluated by MAPEP as detected Co-57 and Zn-65. No client samples were affected by these failures. NCR 13-14

5. Teledyne Brown Engineering's MAPEP September 2013 Sr-90 in soil result of 664 Bq/kg was higher than the known value of 460 Bq/kg, exceeding the upper control limit of 598 Bq/kg. An incorrect Sr-90 result was entered into the MAPEP database. The correct Sr-90 activity of 322 Bq/kg would have been evaluated as acceptable with warning. No client samples were affected by this failure. NCR 13-14

6. Teledyne Brown Engineering's MAPEP September 2013 Cs-134 in air particulate activity of -0.570 Bq/sample was evaluated as a failed false positive test, based on MAPEP's evaluation of the result as a significant negative value at 3 standard deviations. A negative number would never have been reported as a detected nuclide to a Page 19of 181

client, therefore no client samples were affected by this failure.

NCR 13-14

7. Teledyne Brown Engineering's MAPEP September 2013 Sr-90 in vegetation result was investigated due to two low warnings in a row. It appears the September sample was double spike with carrier, resulting in a low activity. With a recovery of around 50%

lower, the Sr-90 result would have fallen within the acceptance range. No client samples were affected by this issue. NCR 13-14 For the EIML laboratory, 89 of 92 analyses met the specified acceptance criteria. Three analyses (AP - Gross Alpha, Soil - Sr-90 and Co-57) did not meet the specified acceptance criteria for the following reasons:

1. Environmental Inc., Midwest Laboratory's MAPEP February 2013 air particulate gross alpha result of 0.14 Bq/total sample was lower than the known value of 1.20 Bq/total sample, exceeding the lower control limit of 0.36 Bq/total sample. The filter was recounted overnight. No significant activity could be detected.

2. Environmental Inc., Midwest Laboratory's MAPEP February 2013 soil Co-57 result of 408.40 Bq/kg was lower than the known value of 628.0 Bq/kg, exceeding the lower control limit of 440.0 Bq/kg.

The sample was reanalyzed using additional fuming nitric separations. The reanalysis result of 574.4 fell within the control limits.

3. Environmental Inc., Midwest Laboratory's MAPEP August 2013 soil C-57 result of 699.60 Bq/kg was higher than the known value of 0.00 Bq/kg, exceeding the upper control limit of 5.00 Bq/kg.

Interference from Eu-152 resulted in misidentification of Co-57.

The Inter-Laboratory Comparison Program provides evidence of "in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.

Page 20 of 181

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

Page 21 of 181

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2013 Name of Facility: ZION DOCKET NUMBER: 50-295 & 50-304 2013 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 GR-B 48 4 2.9 3.3 3.3 Z- 18 CONTROL 0 (PCI/LITER) (20/36) (7/12) (7/12) LAKE FOREST WATER WORKS (2.0/4.0) (2.3/3.9) (2.3/3.9) 12.9 MILES S OF SITE H-3 16 200 <LLD <LLD 0 GAMMA 48 MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD FE-59 30 <LLD <LLD CO-60 15 <LLD <LLD ZN-65 30 <LLD <LLD 0 I0,

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, 2013 Name of Facility: ZION DOCKET NUMBER: 50-295 & 50-304 2013 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 CS- 134 15 <LLD <LLD CS-137 18 <LLD <LLD 0 BA-140 NA <LLD <LLD 0 LA- 140 NA <LLD <LLD FISH GAMMA 8 IVJ (PCI/KG WET) MN-54 130 <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, 2013 Name of Facility: ZION DOCKET NUMBER: 50-295 & 50-304 2013 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 PATI*WAY 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 0o 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-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2013 Name of Facility: ZION DOCKET NUMBER: 50-295 & 50-304 2013 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 rio I'.)

ZN-65 NA <LLD NA 0 (A

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, 2013 Name of Facility: ZION DOCKET NUMBER: 50-295 & 50-304 2013 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 ITO AIR PARTICULATE GR-B 195 10 18 18 19 Z-01 INDICATOR 0 0

(E-3 PCI/CU.METER) (154/156) (39/39) (50/52) ONSITE 1 C

(6/56) (6/42) (6/56) 0.3 MILES S OF SITE cc

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, 2013 Name of Facility: ZION DOCKET NUMBER: 50-295 & 50-304 2013 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 15 (E-3 PCI/CU METER) MN-54 NA <LLD <LLD 0 CO-58 NA <LLD <LLD 0 0>

FE-59 NA <LLD <LLD 0 CO-60 NA <LLD <LLD 0 ZN-65 NA <LLD <LLD 0 NB-95 NA <LLD <LLD 0

~0 0,

CD t'J ZR-95 NA <LLD <LLD 0

-~1 C

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, 2013 Name of Facility: ZION DOCKET NUMBER: 50-295 & 50-304 2013 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 <LLD 0 (E-3 PCI/CU.METER)

CS-137 10 <LLD <LLD BA-140 NA <LLD <LLD LA- 140 NA <LLD <LLD DIRECT RADIATION TLD-QUARTERLY 227 NA 22 23 28 Z-213-2 INDICATOR (MILLI-ROENTGEN/QTR.) (221/221) (6/6) (4/4)

(16/38) (19/26) (25/29) 5.1 MILES W t,,

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)

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS Page 29 of 181

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2013 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 Z-13 Offsite Control 10 miles NW 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 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 ISFSI Inner Ring Z-121-1 and -2 0.2 miles NNW Z-122-1 and -2 0.2 miles W Z-123-1 and -2 0.1 miles WSW Z-124-1 and-2 0.5 miles SW Z-125-1 and -2 0.4 miles SSW B-1 Page 30 of 181

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2013 Location Location Description Distance & Direction From Site E. Environmental Dosimetry - TLD (continued)

Outer Ring Z-209-1 and -2 5.1 miles S Z-211-1 and -2 4.7 miles SW Z-212-1 and -2 5.1 miles WSW Z-213-1 and -2 5.1 miles W Z-214-1 and -2 4.6 miles WNW Z-215-1 and -2 4.0 miles NW Z-216-1 and -2 3.0 miles NNW Control Z-13-1 and -2 10 miles NW B-2 Page 31 of 181

TABLE B-2: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2013 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-3 Page 32 of 181

TLD MoaW&Nf LOcv*M A Air Saupibg Locnbn Figure B-1 Inner Ring TLD and Fixed Air Sampler Locations of the Zion Nuclear Power Station, 2013 B-4 Page 33 of 181

Figure B-2 Outer Ring TLD and Fixed Air Sampler Locations of the Zion Nuclear Power Station, 2013 B-5 Page 34 of 181

Figure B-3 Fish, Water and Sediment Sampling Locations of the Zion Nuclear Power Station, 2013 B-6 Page 35 of 181

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY Page 36 of 181

Table C-1.1 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 Results in Units of pCi/liter +/- 2 Sigma COLLECTION Z-14 Z-15 Z-16 Z-18 PERIOD U I 01/02/13 - 01/30/13 < 2.1 2.9 +/- 1.4 3.2 +/- 1.4 3.4 +/- 1.4 02/06/13 - 02128/13 2.6 +/- 1.4 2.1 +/- 1.4 < 2.1 < 2.1 03/06/13 - 03/27/13 2.8 +/- 1.6 2.7 +/- 1.5 < 2.3 3.7 +/- 1.5 04/03/13 - 04/24/13 3.0 +/- 1.4 3.1 +/- 1.4 3.5 +/- 1.4 3.1 +/- 1.4 05/01/13 - 05/29/13 2.9 +/- 1.4 (1) 3.2 +/- 1.4 3.4 +/- 1.4 3.9 +/- 1.4 06/05/13 - 06/26/13 3.1 +/- 1.2 2.4 +/- 1.2 2.0 +/- 1.2 3.5 +/- 1.2 07/03/13 - 07/31/13 < 2.6 (1)

2.6 < 2.6 3.1 +/- 1.8 08/07/13 - 08/29/13 2.4 +/- 1.5

2.2 < 2.1 2.3 +/- 1.5 09/04/13 - 09/25/13 3.3 +/- 1.8

2.7 4.0 +/- 1.9 < 2.7 10/02/13 - 10/30/13 < 1.9

1.9 < 2.1 < 2.2 11/06/13 - 11/27/13 < 2.0 2.5 +/- 1.5 < 2.1 < 2.3 12/04/13 - 12/26/13 < 2.0

2.0 2.3 +/- 1.4 < 2.0 MEAN 2.8 +/- 0.6 2.7 +/- 0.8 3.1 +/- 1.5 3.3 +/- 1.1 Table C-l.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 Results in Units of pCi/liter +/- 2 Sigma COLLECTION Z-14 Z-15 Z-16 Z-18 PERIOD M

01/02/13 - 03/27/13 < 190 < 199 < 200 < 196 04/03/13 - 06/26/13 < 199 (1) < 194 < 191 < 200 07/03/13 - 09/25/13 < 188 (1) < 191 < 160 < 189 10/02/13 - 12/26/13 < 182 < 177 < 178 < 181 MEAN THE MEAN AND 2 STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1 Page 37 of 181

Table C-1.3 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 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-1 37 Ba-140 La-140 PERIOD Z-14 01/02/13 - 01/30/13 <2 <2 <4 2 <5 <2 3 <2 <2

14 <5 02/06/13 - 02/28/13 <4 <5 < 13 5 < 10 <5 8 <4 <5 < 47 < 16 03/06/13 - 03/27113 <5 <5 < 12 4 < 10 <5 10 <4 <4 < 39

18 04/03/13 - 04/24/13 <3 <4 < 10 4 <7 <5 7 <3 <4 < 42 < 13 05/01/13 - 05/29/13 (1) <4 <4 <10 4 <9 <5 7 <4 <5 < 42 < 13 06/05/13 - 06/26/13 <4 <4 < 12 4 <7 <5 7 <4 <4 < 53

19 07/03/13 - 07/31/13 (1) <4 <4 < 11 3 < 10 <5 9 <4 <5 < 46 *17 08/07/13 - 08/29/13 <3 <4 <8 3 <7 <4 7 <3 <3 < 45 <9 09/04/13 - 09/25/13 <5 <6 < 13 6 < 11 <7 12 <4 <4 < 65 < 22 10/02/13 - 10/30/13 <4 <4 < 10 4 <8 <4 8 <4 <4 < 26 <8 11/06/13 - 11/27/13 <5 <6 < 12 6 < 11 <6 11 <4 <4 < 57

20 12/04/13 - 12/26/13 <6 <6 < 12 5 <9 <7 12 <6 <5 < 35 <13 MEAN Z-15 01/02/13 - 01/30/13 <5 <5 < 13 <5 <11 <6 < 10 <5 <5

36 <13 02/06/13 - 02/28/13 <3 <4 < 10 <4 <8 <4 <8 <4 <4 < 47 < 13 03/06/13 - 03/27/13 <4 <5 < 10 <5 <8 <6 <9 <4 <5 < 48 < 15 04/03/13 - 04/24/13 <3 <4 <9 <3 <7 <4 <7 <3 <4 < 45 < 13 05/01/13 - 05/29/13 <5 <6

14 <6 <10 <5 <9 <4 <5 < 46 < 19 06/05/13 - 06/26/13 <5 <6

12 <6 <10 <7 < 11 <5 <6 < 67 < 22 07/03/13 - 07/31/13 <6 <7 < 15 <7 < 14 <8 < 13 <6 <6 < 60 < 21 08/07/13 - 08/29/13 <6 <6

12 <4 *13 <6 <9 <5 <5

52 < 15 09/04/13 - 09/25/13 <6 <6 < 15 <4 <13 <8 < 11 <5 <6 < 74 < 28 10/02/13 - 10/30/13 <5 <5 <11 <5 <11 <4 <8 <4 <5 < 33 < 10 11/06/13 - 11/27/13 <6 <7 < 12 <4 <10 <6 <11 <5 <7 < 67 < 20 12/04/13 - 12/26113 <7 <6 < 12 <6 < 11 <7 <11 <5 <7

38 < 14 MEAN do (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION 00

Table C-1.3 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 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 01/02/13 - 01/30/13 <6 <7 < 12 <3 < 10 <7 11 <6 <6 < 46 <7 02/06/13 - 02/28/13 <4 <5 < 11 <4 <9 <6 10 <4 <4 < 48 < 14 03/06/13 - 03/27/13 <5 <5 < 11 <5 < 10 <6 9 <4 <5 < 51 < 14 04/03/13 - 04/24113 <3 <4 < 10 <4 <7 <4 7 <3 <3 < 34

14 05/01/13 - 05/29/13 <8 <8 <19 <9

14 <9 14 <6 <7 < 64

24 06/05/13 - 06/26/13 <6 <7 < 17 <5 < 12 <7 12 <6 <6 < 85 < 29 07/03/13 - 07/31/13 <5 <7 < 13 <5 < 11 <7 12 <5 <6 < 65 < 14 08/07/13 - 08/29/13 <4 <6 < 13 <5 <10 <5 11 <5 <6

70 < 12 09/04/13 - 09/25/13 <5 <5 < 18 <6 < 14 <7 12 <5 <6 < 67 < 22 10/02/13 - 10130/13 <4 <5 <9 <5 < 10 <5 10 <4 <5 < 32 <8 11/06/13 - 11/27/13 <5 <6 < 13 <5 < 10 <6 10 <6 <6 < 69 < 22 12/04/13 - 12/26/13 <6 <7 <15 <7 *10 <7 12 <6 <7 < 46 <15

(-I MEAN Z-18 01/02/13 - 01/30/13 <4 <5 <9 <5 <8 <4 <8 <4 <5 < 30 <8 02/06/13 - 02/28/13 <4 <5 <11 <5 <9 <6 < 10 <5 <5 < 50 < 15 03/06/13 - 03/27/13 <4 <4 <11 <5 <8 <5 <9 <4 <4 < 43 < 18 04/03/13 - 04/24/13 <3 <3 <7 <3 <6 <4 <6 <3 <3 < 33 < 10 05/01/13 - 05/29/13 <5 <6 < 12 <4 < 11 <7 < 10 <5 <6 < 48 < 16 06/05/13 - 06/26/13 <5 <6 < 15 <5 <8 <6 <9 <5 <5 < 75

20 07/03/13 - 07/31/13 <7 < 10 < 15 <9 < 16 <9 < 14 <7 <7 < 65 < 23 08/07/13 - 08/29/13 <5 <5 < 12 <5 <8 <6 < 10 <5 <6 < 59 < 18 09/04/13 - 09/25/13 <7 <7 < 18 <6 <15 <9 <15 <5 <5 < 89 < 26 10/02/13 - 10/30/13 <5 <6 < 13 <6 *15 <7 < 10 <5 <6 < 43 < 12 11/06/13 - 11/27/13 <4 <5

16 <5 <9 <6 <9 <5 <6 <54 < 19 12/04/13 - 12/26/13 <6 <5 < 10 <6 < 12 <5 <9 <5 <6 < 40 < 13 MEAN 0o

Table C-I1.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 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 05/14/13 < 41 < 84 < 170 < 56 < 162 < 90 < 143 < 65 < 61 < 861 < 364 Largemouth Bass 05/14/13 < 67 < 83 < 240 < 79 < 188 < 95 < 172 < 77 < 89 < 1068 < 339 Chinook Salmon 10/30/13 < 52 < 68 < 153 < 66 < 105 < 69 < 78 < 50

66 < 451 < 101 Common Carp 10/30/13 < 53 < 55 < 106 < 61 < 120 < 54 < 104 <45 < 45 < 378 < 111 MEAN Z-27 Burbot 05/14/13 < 51 < 75 < 138 < 59 < 127 < 94 < 107 < 59 < 77 < 903 < 237 Lake Trout 05/14/13 < 51 < 86 < 195 < 88 < 169 < 83 < 176 < 67

71 < 1076 < 253 Lake Trout 10/23113 < 70 < 64 < 210 < 71 < 114 < 84 < 123 < 73

78 < 886 < 237 Longnose Sucker 10/23/13 < 49 < 46 < 115 < 47 < 125 < 80 < 97 < 53 < 58 < 447 < 122 MEAN

-c rio 0

0 00

Table C-I11.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 Results in Units of pCi/kg Dry +/- 2 sigma SITE COLLECTION Mn-5 '4 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD U

Z-25 05/08/13 < 35 < 47 < 119 < 52 < 113 < 52 < 77

40 < 40 < 434 < 105 10/16/13 < 35 < 38 < 79 < 36 < 76 <43 < 70 < 29 < 32 < 394

116 MEAN 40

Table C-IV.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 Results in Units of E-3 pCi/cu meter +/- 2 Sigma COLLECTION GROUP I IGROUP 11 PERIOD Z-01 Z-02 Z-03 Z-13 01/02/13 -01/09/13 56 t 6 52 +/- 6 50 +/- 6 01/09/13 -01/16/13 23 +/- 4 23 +/- 4 27 +/- 5 01/16/13 -01/24/13 29 +/- 4 23 +/- 4 23 +/- 4 01/24/13 -01/30/13 22 +/- 5 27 +/- 6 23 +/- 5 01/30/13 -02/06/13 38 +/- 6 33 +/- 6 39 +/- 6 02/06/13 -02/13/13 16 +/- 4 14 +/- 4 15 +/- 4 02/13/13 -02/20/13 18 +/- 4 20 +/- 4 23 +/- 5 02/20/13 -02/28/13 < 6 12 +/- 4 9 +/- 4 02/28/13 -03/07/13 12 +/- 4 (1) 12 +/- 4 12 +/-4 (1) 03/07/13 -03/13/13 8 +/- 4 11 +/- 4 11 +/- 4 03/13/13 -03/20/13 21 +/- 5 15 +/- 4 18 +/- 4 03/20/13 -03/27/13 6 +/-3 9 +/-4 9+/- 4 03/27/13 -04/03/13 17 +/- 4 12 +/- 4 11 +/- 4 04/03/13 -04/10/13 15 +/- 5 (1) 11 +/- 4 12 +/- 4 14 +/- 5 (1)(2) 04/10/13 -04/17/13 < 6 (1) 9 +/- 4 6 +/- 4 7 +/- 3 04/17/13 -04/24/13 9 +/- 4 11 +/- 4 12 +/- 4 13 +/- 4 04/24/13 -05/01/13 26 +/-5 21 +/-5 19 +/-4 23 +/-5 05/01/13 -05/08/13 14 +/- 4 14 +/- 4 11 +/- 4 14 +/- 4 05/08/13 -05/15/13 13 +/- 4 9 +/- 4 11 +/- 4 12 +/- 4 05/15/13 -05/22/13 13 +/-4 12 +/-4 14 +/-4 17+/- 4 05/22/13 -05/29/13 9 +/- 4 11 +/- 4 6 +/- 4 9 +/- 4 05/29/13 06/05/13 9 +/-3 7 +/-3 9 +/-3 6+/- 3 06/05/13 -06/12/13 15 +/- 4 14 +/- 4 17 +/- 4 19 +/- 4 06/12/13 -06/19/13 17 +/- 4 10 +/- 3 15 +/- 4 17 +/- 4 06/19/13 -06/26/13 13 +/-4 16 +/-4 15 +/-4 12+/- 3 06/26/13 -07/03/13 10 +/-4 6 +/- 3 8 +/-4 9 +/-4 07/03/13 -07/10/13 15 +/- 4 18 +/- 4 17 +/- 4 20 +/- 4 07/10/13 -07/17/13 11 +/- 4 10 +/- 4 9 +/- 3 11 +/- 4 07/17/13 -07/24/13 9 +/- 3 11 +/- 3 10 +/- 3 12 +/- 4 07/24/13 -07/31/13 13 +/-4 6 +/-3 6 +/-3 6+/- 3 07/31/13 -08/07/13 11 +/- 4 12 +/- 4 17 +/- 4 12 +/- 4 08/07/13 -08/14/13 12 +/-4 18 +/-4 16 +/-4 14 +/-4 08/14/13 -08/21/13 22 +/-4 24 +/-5 28 +/-5 25+/- 5 08/21/13 -08/29/13 17 +/- 4 25 +/- 5 23 +/- 5 17 +/- 4 08/29/13 -09/04/13 14 +/-4 14 +/-4 15 +/-4 18+/- 5 09/04/13 -09/11/13 25 +/- 5 28 +/- 5 30 +/- 5 31 +/- 5 09/11/13 -09/18/13 12 +/- 4 12 +/- 4 14 +/- 4 18 +/- 4 09/18/13 -09/25/13 11 +/- 4 14 +/- 4 12 +/- 4 15 +/- 4 09/25/13 -10/02/13 18 +/-4 20 +/-5 18 +/-4 22 +/-5 10/02/13 -10/09/13 15 +/-4 12 +/-4 14 +/-4 16 +/-4 10/09/13 -10/16/13 45 +/- 9 (1) 18 +/- 4 20 +/- 4 19 +/- 4 10/16/13 -10/23/13 13 +/- 4 13 +/- 4 11 +/- 4 9 +/- 4 10/23/13 -10/30/13 13 +/- 4 28 +/- 9 (1) 14 +/- 4 15 +/- 4 10/30/13 -11/06/13 26 +/- 5 23 +/- 4 29 +/- 5 30 +/- 5 11/06/13 -11/13/13 18 +/- 4 14 +/- 4 14 +/- 4 18 +/- 4 11/13/13 -11/20/13 16 +/- 4 14 +/- 4 15 +/- 4 18 +/- 4 11/20/13 -11/27/13 21 +/- 4 22 +/- 4 21 +/- 4 23 +/- 4 11/27/13 -12/04/13 34 +/- 5 (1) 31 +/- 5 31 +/- 5 42 +/- 6 12/04/13 -12/11/13 32 +/- 5 32 +/- 5 36 +/- 5 29 +/- 5 12/11/13 -12/18/13 32 +/- 5 30 +/- 5 33 +/- 5 31 +/- 5 12/18/13 -12/26/13 25 +/-4 29 +/-5 26 +/-4 25+/- 4 12/26/13 -01/03/14 22 +/-4 23 +/-4 27 +/-5 24+/- 4 MEAN 19 +/- 20 18 +/-18 18 +/-18 18 +/-16 THE MEAN AND 2 STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-6 Page 42 of 181

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, 2013 Results in Units of E-3 pCi/cu meter +/- 2 Sigma GROUP I - ONSITE LOCATIONS GROUP II - OFFSITE CONTROL LOCATION COLLECTION MIN MAX MEAN +/- COLLECTION MIN MAX MEAN +

PERIOD 2SD PERIOD 2SD U1/U2113 U1/3u/13 22 b56 32 2t6 031/0l2/13 - 01/30l/13 01/30/13 02/28/13 9 39 22 21 01/30/13 - 02/28/13 02/28/13 04/03/13 6 21 12 8 02/28/13 - 04/03/13 04/03/13 05/01/13 6 26 14 12 04/04/13 - 05/01/13 7 23 14 +13 05/01/13 05/29/13 6 14 11 5 05/01/13 - 05/29/13 9 17 13 +/-7 05/29/13 07/03/13 6 17 12 7 05/29/13 - 07/03/13 6 19 13 +10 07/03/13 07/31/13 6 18 11 8 07/03/13 - 07/31/13 6 20 12 +11 07/31/13 08/29/13 11 28 19 11 07/31/13 - 08/29/13 12 25 17 +11 08/29/13 10/02/13 11 30 17 12 08/29/13 - 10/02/13 15 31 20 + 12 10/02/13 10/30/13 11 45 18 20 10/02/13 - 10/30/13 9 19 15 +/-9 10/30/13 12/04/13 14 34 22 14 10/30/13 - 12/04/13 18 42 26 + 20 12/04/13 01/03/14 22 36 29 9 12/04/13 - 01/03/14 24 31 27 +7 01/02/13 - 01/03/14 6 56 18 +/- 18 04/04/13 - 01/03/14 6 42 18 +/- 16 C-7 Page 43 of 181

Table C-IV.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013 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 01/02/13 - 04/03113 <3 <3 < 1U <3 <4 <4 < 6 <2 <2 < 4U 04/03/13 - 07/03/13 <2 < 3 <8 <3 <6 <3 <5 <3 <3 < 57 < 16 07/03/13 - 10/02/13 < 2 <2 <5 < 3 <7 <2 <4 <3 <2 < 30 < 10 10/02/13 - 01/03/14 <5 <5 < 10 <4 <11 <4 <6 <3 <4 < 54 < 22 MEAN Z-02 01/02/13 - 04103/13 <2 <3 < 10 <2 <7 <4 <5 <2 <2 < 79 < 36 04/03/13 - 07/03/13 <3 <3 <9 <2 <6 <4 <6 <3 <3 < 56 < 13 07/03/13 - 10/02/13 <4 <4 < 11 <4 <9 <5 <7 <4 <3 < 46 < 11 10/02/13 - 01/03/14 <2 <2 <6 <3 <6 <3 <6 <3 <3 < 36 <7 MEAN C-) Z-03 01/02/13 - 04/03/13 <3 <5 < 10 <3 <9 <5 <9 <3 <4 < 136 < 53 00 04/03/13 - 07/03/13 <3 <4 <9 <3 <7 <5 <8 <4 <3 < 61 < 28 07/03/13 - 10/02/13 <2 <2 <5 <3 <5 <2 <5 <2 <2 < 21 < 10 10/02/13 - 01/03/14 <3 <3 <9 <3 <7 <3 <7 <3 <3 < 43 < 16 MEAN Z-13 01/02/13 - 04/03/13 04/04/13 - 07/03/13 (1) < 2 <3 <7 <2 <6 <3 <5 <2 <2 < 39 < 12 07/03/13 - 10/02/13 <1 <3 <6 <3 <4 <3 <5 <2 <2 < 23 < 10 10/02/13 - 01/03/14 <3 <4 <5 <3 <8 <4 <6 <4 <3 < 45 < 14 MEAN C

(1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION

Table C-V.1 Quarterly TLD Results for Zion Nuclear Power Station, 2013 Results in Units of Milli-Roentgen/Quarter +/- 2 Standard Deviations STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT-DEC CODE +/-2 S.D.

z-01-1 23 +5 Z-01-2 23 7 Z-02-1 20 +3 Z-02-2 20 +6 Z-03-1 21 +/-7 Z-03-2 20 +/-3 Z-13-1 (2) 22 +/-7 Z-13-2 (2) 23 +/-7 Z-101-1 19+/- 2 Z-101-2 19+/- 4 Z-102-1 22+/- 5 Z-102-2 21 +3 Z-103-1 22 +/-3 Z-103-2 21 +/-2 Z-104-1 19+/- 3 Z-104-2 19+/- 3 Z-105-1 21 +/-4 Z-105-2 20 +/-4 Z-106-1 19+/- 4 Z-106-2 21 +/-6 Z-107-1 20 +/-3 Z-107-2 21 +7 Z-108-1 26 +/- 17 Z-108-2 24 +/- 10 Z-110-1 23 1 Z-110-2 25 +/-7 z-111-1 21 +/-5 Z-111-2 20 +/-4 Z-112-1 23 +/-3 Z- 112-2 21 +/-3 Z-113-1 21 + 4 Z-113-2 20 +/-3 Z-114-1 21 +/-4 Z-114-2 20 +/-2 Z-115-1 22 +/-4 Z-115-2 20 +/-3 Z-121-1 (2) 21 +/-3 Z-121-2 (2) 22 +/-2 Z-122-1 (2) 21 +/-7 Z-122-2 (2) 23+/- 8 Z-123-1 (2) 21 +/-4 Z-123-2 (2) 22 +/-6 Z-124-1 (2) 21 +/-0 Z-124-2 (2) 22 +/-5 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-9 Page 45 of 181

Table C-V.1 Quarterly TLD Results for Zion Nuclear Power Station, 2013 Results in Units of Milli-Roentgen/Quarter +/- 2 Standard Deviations STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT- DEC CODE +2 S.D.

Z-125-1 (2) 19 +/- 5 21 16 (1) 20 Z-125-2 (2) 20 +/- 4 21 18 (1) 22 Z-209-1 (2) 22 +/- 5 24 19 21 24 Z-209-2 (2) 21 +/- 5 22 18 20 24 Z-21 1-1 (2) 25 +/- 5 27 22 27 25 Z-211-2 (2) 26 +/- 6 30 23 25 24 Z-212-1 (2) 27 +/- 6 26 23 29 30 Z-212-2 (2) 26 +/- 3 25 24 28 26 Z-213-1 (2) 25 +/- 5 24 22 25 28 Z-213-2 (2) 28 +/- 3 28 25 28 29 Z-214-1 (2) 25 +/- 4 24 22 26 27 Z-214-2 (2) 25 +/- 5 26 22 28 25 Z-215-1 (2) 26 +/- 4 26 23 28 25 Z-215-2 (2) 27 +/- 3 26 26 27 29 Z-216-1 (2) 21 +/- 3 23 19 21 22 Z-216-2 (2) 21 +/- 4 22 18 20 22 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-IO Page 46 of 181

Table C-V.2 Mean Quarterly TLD Results for Inner Ring, ISFSI Inner Ring, Other, Outer Ring, and Control Locations For Zion Nuclear Power Station, 2013 Results in Units of Milli-Roentgen/Quarter +/- 2 Standard Deviation of the Station Data COLLECTION INNER RING OUTER RING (2) OTHER CONTROL (2) ISFSI INNER RING (2)

PERIOD +/- 2 S.D.

JAN-MAR 23 +/- 7 25 +/- 5 23 +/- 4 24 +/- 6 23 +/- 3 APR-JUN 19 +/- 3 22 +/- 5 18 +/- 3 19 +/- 0 19 +/- 4 JUL-SEP 21 +/- 4 25 +/- 7 20 +/- 2 (1) 21 +/- 0 OCT-DEC 22 +/- 4 26 +/- 5 22 +/- 4 25 +/- 3 22 +/- 3 Table C-V.3 Summary of the Ambient Dosimetry Program for Zion Nuclear Power Station, 2013 Results in Units of Milli-Roentgen/Quarter +/- 2 Standard Deviation of the Station Data LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

INNER RING 112 17 38 21 + 6 OUTER RING 56 18 30 25 +/- 6 OTHER 22 17 25 21 +/- 5 CONTROL 6 19 26 23 +/- 6 ISFSI INNER RING 31 16 25 21 + 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 OUTER RING STATIONS - Z-209-1, Z-209-2, Z-211-1, Z-211-2, Z-212-1, Z-212-2, Z-213-1, Z-213-2, Z-214-1, Z-214-2, Z-215-1, Z-215-2, Z-216-1, Z-216-2 OTHER STATIONS - Z-01-1, Z-01-2, Z-02-1, Z-02-2, Z-03-1, Z-03-2 CONTROL STATIONS - Z-1 3-1, Z-1 3-2 ISFSI INNER RING STATIONS - Z-1 21-1, Z-1 21-2, Z-1 22-1, Z-1 22-2, Z-1 23-1, Z-123-2, Z-124-1, Z-124-2, Z-125-1, Z-125-2 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-1II Page 47 of 181

FIGURE C-1 PUBLIC WATER - GROSS BETA - STATIONS Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2013 Z-14 (C) Kenosha Water Works 5.0 4.0 3.0

-L 0.

2.0 1.0 0.0 I 01-26-00 11-08-02 08-21-05 06-03-08 03-17-11 12-28-13 Z-1 5 Lake County Water Works 7.0 6.0 5.0 4.0 C.)

0.

3.0 2.0 1.0 0.0 I-b%

01-26-00 11-08-02 08-21-05 06-03-08 03-17-11 12-28-13 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-12 Page 48 of 181

FIGURE C-2 PUBLIC WATER - GROSS BETA - STATIONS Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2013 Z-16 Waukegan Water Works 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 01-26-00 11-08-02 08-21-05 06-03-08 03-17-11 12-28-13 Z-18 (C) Lake Forest Water Works 10.0 9.0 8.0 7.0 6.0 5.0 0.

4.0 3.0 2.0 1.0 0.0 01-26-00 11-08-02 08-21-05 06-03-08 03-17-11 12-28-13 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C- 13 Page 49 of 181

FIGURE C-3 PUBLIC WATER - TRITIUM - STATION Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2013 Z-14 (C) Kenosha Water Works 300 200

-C 0.1 100 0

01-01-00 10-02-02 07-03-05 04-03-08 01-03-11 10-04-13 Z-15 Lake County Water Works 300 250 200

-J 150 0.

100 50 0 14-03-29-00 12-29-02 09-29-05 06-30-08 04-01-11 12-31-13 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C- 14 Page 50 of 181

FIGURE C-4 PUBLIC WATER - TRITIUM - STATION Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2013 Z-16 Waukegan Water Works 250 200 150

-I C.,

100 50 0 -

03-29-00 12-29-02 09-29-05 06-30-08 04-01-11 12-31-13 Z-1 8 (C) Lake Forest Water Works 250 200 150

-I 100 50 0 v 03-29-00 12-29-02 09-29-05 06-30-08 04-01-11 12-31-13 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-15 Page 51 of 181

FIGURE C-5 AIR PARTICULATES - GROSS BETA - STATIONS Z-01 AND Z-02 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2013 Z-01 Onsite No. 1, Southside 60.0 50.0 0 40.0 E

CL 30.0 03 cý 20.0 10.0 0.0 I 01-05-00 10-23-02 08-10-05 05-28-08 03-16-11 01-01-14 Z-02 Onsite No. 2, Westside 70.0 60.0 50.0 E

0C. 40.0 03 9 30.0 Lu Q

20.0 10.0 0.0 I 01-05-00 10-23-02 08-10-05 05-28-08 03-16-11 01-01-14 C-16 Page 52 of 181

FIGURE C-6 AIR PARTICULATES - GROSS BETA - STATIONS Z-03 AND Z-13 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2013 Z-03 Onsite No. 3, Northside 90.0 80.0 70.0 60.0 0.

C.)

50.0 40.0 L-CD 30.0 20.0 10.0 0.0 01-05-00 10-23-02 08-10-05 05-28-08 03-16-11 01-01-14 Z-13 Offsite Control 40.0 30.0 C.)

L 20.0 IL, 10.0 0.0 I 04-10-13 06-02-13 07-25-13 09-16-13 11-08-13 12-31-13 C-17 Page 53 of 181

APPENDIX D INTER-LABORATORY COMPARISON PROGRAM Page 54 of 181

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 1 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)

March 2013 E10477 Milk Sr-89 pCi/L 120 99.7 1.20 Sr-90 pCi/L 9.21 11.0 0.84 E10478 Milk 1-131 pCi/L 87.1 100 0.87 Ce-1 41 pCi/L 186 187 0.99 Cr-51 pCi/L 463 472 0.98 Cs-1 34 pCi/L 201 214 0.94 Cs-1 37 pCi/L 262 266 0.98 Co-58 pCi/L 200 208 0.96 Mn-54 pCi/L 215 208 1.03 Fe-59 pCi/L 266 252 1.06 Zn-65 pCi/L 311 301 1.03 Co-60 pCi/L 384 400 0.96 E10480 AP Ce-1 41 pCi 95.3 95.6 1.00 Cr-51 pCi 264 241 1.10 Cs-1 34 pCi 123 109 1.13 Cs-1 37 pCi 142 136 1.04 Co-58 pCi 112 106 1.06 Mn-54 pCi 115 106 1.08 Fe-59 pCi 139 129 1.08 Zn-65 pCi 163 153 1.07 Co-60 pCi 212 204 1.04 E10479 Charcoal 1-131 pCi 90.1 92.6 0.97 El10481 Water Fe-55 pCi/L 1840 1890 0.97 A June 2013 E10564 Milk Sr-89 pCi/L 110 95.0 1.16 A Sr-90 pCi/L 15.8 17.0 0.93 A E10545 Milk 1-131 pCi/L 92.6 95.5 0.97 A Ce-1 41 pCi/L 83.1 90.4 0.92 A Cr-51 pCi/L 253 250 1.01 A Cs-1 34 pCi/L 118 125 0.94 A Cs-1 37 pCi/L 143 151 0.95 A Co-58 pCi/L 87.1 94.0 0.93 A Mn-54 pCi/L 171 172 0.99 A Fe-59 pCi/L 125 120 1.04 A Zn-65 pCi/L 220 217 1.01 A Co-60 pCi/L 169 175 0.97 A E10547 AP Ce-141 pCi 56.8 56.7 1.00 A Cr-51 pCi 168 157 1.07 A Cs-1 34 pCi 85.2 78.4 1.09 A Cs-1 37 pCi 101 94.6 1.07 A Co-58 pCi 62.7 58.9 1.06 A Mn-54 pCi 125 108 1.16 A Fe-59 pCi 85.7 75.0 1.14 A Zn-65 pCi 169 136 1.24 W Co-60 pCi 116 110 1.05 A El 0546 Charcoal 1-131 pCi 86.5 89.7 0.96 A D-I Page 55 of 181

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 2 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)

June 2013 E10549 Water Fe-55 pCi/L 1610 1610 1.00 A September2013 E10646 Milk Sr-89 pCi/L 63.9 96.0 0.67 N (1)

Sr-90 pCi/L 8.88 13.2 0.67 N (1)

E10647 Milk 1-131 pCi/L 93.9 98.3 0.96 A Ce-1 41 pCi/L NA (2)

Cr-51 pCi/L 272 277 0.98 A Cs-1 34 pCi/L 150 172 0.87 A Cs-1 37 pCi/L 125 131 0.95 A Co-58 pCi/L 105 108 0.97 A Mn-54 pCi/L 138 139 0.99 A Fe-59 pCi/L 125 130 0.96 A Zn-65 pCi/L 264 266 0.99 A Co-60 pCi/L 187 196 0.95 A E10672 AP Ce-141 pCi NA (2)

Cr-51 pCi 208 223 0.93 A Cs-1 34 pCi 143 139 1.03 A Cs-1 37 pCi 106 105 1.01 A Co-58 pCi 97.0 86.5 1.12 A Mn-54 pCi 116 112 1.04 A Fe-59 pCi 98.6 105 0.94 A Zn-65 pCi 219 214 1.02 A Co-60 pCi 166 158 1.05 A E10648 Charcoal 1-131 pCi 76.3 71.7 1.06 A E10673 Water Fe-55 pCi/L 1790 1690 1.06 A December2013 E10774 Milk Sr-89 pCi/L 97.3 93.8 1.04 Sr-90 pCi/L 13.3 12.9 1.03 E10775 Milk 1-131 pCi/L 89.7 96.1 0.93 Ce-141 pCi/L 99.8 110 0.91 Cr-51 pCi/L 297 297 1.00 Cs-1 34 pCi/L 129 142 0.91 Cs-1 37 pCi/L 126 126 1.00 Co-58 pCi/L 116 112 1.04 Mn-54 pCi/L 167 168 0.99 Fe-59 pCi/L 117 110 1.06 Zn-65 pCi/L 757 741 1.02 Co-60 pCi/L 141 147 0.96 E10777 AP Ce-141 pCi 85.1 88.0 0.97 Cr-51 pCi 278 238 1.17 Cs-1 34 pCi 123 114 1.08 Cs-1 37 pCi 102 101 1.01 Co-58 pCi 84.4 89.9 0.94 Mn-54 pCi 132 135 0.98 Fe-59 pCi 101 88.3 1.14 Zn-65 pCi 506 595 0.85 Co-60 pCi 118 118 1.00 D-2 Page 56 of 181

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 3 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)

December 2013 E10776 Charcoal 1-131 pCi 84.7 80.5 1.05 A E10778 Water Fe-55 pCi/L 2010 1910 1.05 A (1) Milk, Sr-89/90 - The failure was due to analysterror. No client samples were affected by this failure. NCR 13-15 (2) The sample was not spiked with Ce- 141 (a) Teledyne Brown Engineeringreportedresult.

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

(c) Ratio of Teledyne Brown Engineering to Analytics results.

(d) Analytics evaluation based on TBE internalQC limits: A= Acceptable, reported result falls within ratio limits of 0.80-1.20.

W-Acceptable with warning, reportedresult 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 Page 57 of 181

TABLE D-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 1 OF 1)

Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Limits Evaluation (c)

May 2013 RAD-93 Water Sr-89 pCi/L 48.3 41.3 31.6 - 48.4 A Sr-90 pCi/L 19.3 23.9 17.2-28.0 A Ba-1 33 pCi/L 81.9 82.1 69.0 - 90.3 A Cs-1 34 pCi/L 40.9 42.8 34.2 - 47.1 A Cs-1 37 pCi/L 44.0 41.7 37.0 - 48.8 A Co-60 pCi/L 61.9 65.9 59.3 - 75.0 A Zn-65 pCi/L 202 189 170 - 222 A Gr-A pCi/L 34.2 40.8 21.1 -51.9 A Gr-B pCi/L 18.0 21.6 13.0-29.7 A 1-131 pCi/L 23.8 23.8 19.7-28.3 A U-Nat pCi/L 60.4 61.2 49.8 - 67.9 A H-3 pCi/L 3970 4050 3450 - 4460 A MRAD-18 Filter Gr-A pCi/filter Lost during processing November 2013 RAD-95 Water Sr-89 pCi/L 25.5 21.9 14.4- 28.2 A Sr-90 pCi/L 14.3 18.1 12.8- 21.5 A Ba-1 33 pCi/L 57.2 54.2 44.7 - 59.9 A Cs-1 34 pCi/L 83.3 86.7 71.1 -95.4 A Cs-1 37 pCi/L 201 206 185 - 228 A Co-60 pCi/L 104 102 91.8- 114 A Zn-65 pCi/L 361 333 300 - 389 A Gr-A pCi/L 29.5 42.8 22.2 - 54.3 A Gr-B pCi/L 30.1 32.2 20.8 - 39.9 A 1-131 pCi/L 23.1 23.6 19.6- 28.0 A U-Nat pCi/L 5.53 6.24 47.0 - 7.44 A H-3 pCi/L 17650 17700 15500 -19500 A MRAD-19 Filter Gr-A pCi/filter 33.0 83.0 27.8-129 A (a) Teledyne Brown Engineeringreported result.

(b) The ERA known value is equal to 100% of the parameterpresent in the standardas determinedby gravimetric and/or volumetric measurementsmade 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.

D-4 Page 58 of 181

TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

TELEDYNE BROWN ENGINEERING, 2013 (PAGE I OF 2)

Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)

March 2013 13-MaW28 Water Cs-1 34 Bq/L 21.0 24.4 17.1 -31.7 A Cs-1 37 Bq/L 0.0446 (1) A Co-57 Bq/L 28.3 30.9 21.6-40.2 A Co-60 Bq/L 18.2 19.56 13.69 - 25.43 A H-3 Bq/L 506 507 355-659 A Mn-54 Bq/L 25.7 27.4 19.2 - 35.6 A K-40 Bq/L 2.09 (1) A Sr-90 Bq/L 10.5 10.5 7.4-13.7 A Zn-65 Bq/L 29.2 30.4 21.3 - 39.5 A 13-GrW28 Water Gr-A Bq/L 2.74 2.31 0.69 - 3.93 Gr-B Bq/L 15.6 13.0 6.5-19.5 13-MaS28 Soil Cs-1 34 Bq/kg 859 887 621-1153 Cs-1 37 Bq/kg 633 587 411 -763 Co-57 Bq/kg 0.256 (1)

Co-60 Bq/kg 738 691 484-898 Mn-54 Bq/kg 0.671 (1)

K-40 Bq/kg 714 625.3 437.7 -812.9 Sr-90 Bq/kg 442 628 440-816 Zn-65 Bq/kg 1057 995 697-1294 13-RdF28 AP Cs-1 34 Bq/sample 1.73 1.78 1.25 - 2.31 Cs-1 37 Bq/sample 2.73 2.60 1.82 - 3.38 Co-57 Bq/sample 2.38 2.36 1.65 - 3.07 Co-60 Bq/sample 0.0302 (1)

Mn-54 Bq/sample 4.36 4.26 2.98 - 5.54 Sr-90 Bq/sample 1.43 1.49 1.04- 1.94 Zn-65 Bq/sample 3.14 3.13 2.19-4.07 13-GrF28 AP Gr-A Bq/sample 0.767 1.20 0.36- 2.04 Gr-B Bq/sample 0.871 0.85 0.43- 1.28 13-RdV28 Vegetation Cs-1 34 Bq/sample -0.197 (1)

Cs-1 37 Bq/sample 7.39 6.87 4.81 - 8.93 Co-57 Bq/sample 9.87 8.68 6.08 - 11.28 Co-60 Bq/sample 6.08 5.85 4.10- 7.61 Mn-54 Bq/sample -0.0104 (1)

Sr-90 Bq/sample 1.28 1.64 1.15-2.13 Zn-65 Bq/sample 6.84 6.25 4.38-8.13 September 2013 13-MaW29 Water Cs-1 34 Bq/L 29.1 30.0 21.0 - 39.0 Cs-1 37 Bq/L 34.5 31.6 22.1-41.1 Co-57 Bq/L 0.0358 (1)

Co-60 Bq/L 24.6 23.58 16.51 - 30.65 H-3 Bq/L 2.45 (1)

Mn-54 Bq/L 0.0337 (1)

K-40 Bq/L 0.193 (1)

Sr-90 Bq/L 9.12 7.22 5.05-9.39 Zn-65 Bq/L 38.1 34.6 24.2 - 45.0 13-GrW29 Water Gr-A Bq/L 1.13 0.701 0.210 -1.192 Gr-B Bq/L 7.61 5.94 2.97 - 8.91 D-5 Page 59 of 181

TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

TELEDYNE BROWN ENGINEERING, 2013 (PAGE 2 OF 2)

Identification' Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)

September 2013 13-MaS29 Soil Cs-1 34 Bq/kg 1150 1172 820-1524 A Cs-1 37 Bq/kg 1100 977 684-1270 A Co-57 Bq/kg 670 (1) N (2)

Co-60 Bq/kg 502 451 316-586 A Mn-54 Bq/kg 758 674 472-876 A K-40 Bq/kg 796 633 443-823 W Sr-90 Bq/kg 664 460 322-598 N (2)

Zn-65 Bq/kg 210 (1) N (2) 13-RdF29 AP Cs-134 Bq/sample -0.570 (1) N (2)

Cs-1 37 Bq/sample 2.85 2.7 1.9-3.5 A Co-57 Bq/sample 3.30 3.4 2.4-4.4 A Co-60 Bq/sample 2.41 2.3 1.6-3.0 A Mn-54 Bq/sample 3.65 3.5 2.5 - 4.6 A Sr-90 Bq/sample 1.40 1.81 1.27-2.35 W Zn-65 Bq/sample 2.90 2.7 1.9 - 3.5 A 13-GrF29 AP Gr-A Bq/sample 0.872 0.9 0.3- 1.5 A Gr-B Bq/sample 1.57 1.63 0.82 - 2.45 A 13-RdV29 Vegetation Cs-1 34 Bq/sample 5.29 5.20 3.64 - 6.76 A Cs-1 37 Bq/sample 7.48 6.60 4.62 - 8.58 A Co-57 Bq/sample 0.0129 (1) A Co-60 Bq/sample 0.0523 (1) A Mn-54 Bq/sample 8.78 7.88 5.52 - 10.24 A Sr-90 Bq/sample 1.63 2.32 1.62-3.02 W (2)

Zn-65 Bq/sample 3.18 2.63 1.84-3.42 W (1) Falsepositive test.

(2) Soil, Co-57 & Zn-65 identified by gamma software as not detected, MAPEP evaluated as failing the false positive test. A large concentration of Eu- 152 was spiked into the sample, causing interference in the analysis. Gamma software recognizedthe interference and identified them as not detected. MAPEP does not allow clients to enternon-detect designation. NCR 13-04 Soil, Sr incorrect results were submitted to MAPEP. Actual result was 332 bq/kg, which is with the acceptancerange. NCR 13-04 AR, Cs-134 - MAPEP evaluated the -0.570 as a failed false positive test. No client samples were affected by these failures. NCR 13-04 Vegetation, Sr it appearsthat the carrierwas double spiked into the sample, resulting in the low activity for this sample. NCR 13-04 (a) Teledyne Brown Engineering reportedresult.

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

(c) DOEIMAPEPevaluation:A=acceptable, W=acceptablewith warning, N=not acceptable.

D-6 Page 60 of 181

TABLE D-4 ERA (a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAMa ENVIRONMENTAL, INC., 2013 (Page 1 of 1)

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result (b) Result (c) Limits Acceptance ERW-1 593 04/08/13 Sr-89 43.6 +/- 4.3 41.30 31.6 - 48.4 Pass ERW-1 593 04/08/13 Sr-90 23.2 +/- 1.7 23.90 17.2 -28.0 Pass ERW-1 596 04/08/13 Ba-1 33 74.80 4.00 82.10 69.00 90.30 Pass ERW-1 596 04/08/13 Co-60 65.50 3.42 65.90 59.30 75.00 Pass ERW-1 596 04/08/13 Cs-1 34 41.10 3.47 42.80 34.20 47.10 Pass ERW-1 596 04/08/13 Cs-1 37 42.30 4.03 41.70 37.00 48.80 Pass ERW-1 596 04/08/13 Zn-65 200.3 +/- 10.1 189.0 170.0 - 222.0 Pass ERW-1 598 04/08/13 Gr. Alpha 34.30 1.98 40.80 21.10 51.90 Pass ERW-1 598 04/08/13 Gr. Beta 18.70 0.98 21.60 13.00 29.70 Pass ERW-1600 04/08/13 1-131 23.00 +/- 1.10 23.80 19.70 - 28.30 Pass ERW-1600 04/08/13 1-131(G) 23.48 +/- 9.44 23.80 19.70 +/- 28.30 Pass ERW-1 606 04/08/13 H-3 4041 +/- 194 4050 3450 - 4460 Pass ERW-6009 10/07/13 Sr-89 22.00 2.80 21.90 14.40 28.20 Pass ERW-6009 10/07/13 Sr-90 17.10 2.55 18.10 12.80 21.50 Pass ERW-6012 10/07/13 Ba-133 48.20 4.29 54.20 44.70 59.90 Pass ERW-6012 10/07/13 Co-60 100.8 +/- 4.7 102.0 91.8-114.0 Pass ERW-6012 10/07/13 Cs-134 87.30 4.35 86.70 71.10 95.40 Pass ERW-6012 10/07/13 Cs-137 199.6 +/- 7.4 206.0 185.0 - 228.0 Pass ERW-6012 10/07/13 Zn-65 356.2 +/- 13.2 333.0 300.0 - 389.0 Pass ERW-6015 10/07/13 Gr. Alpha 30.70 11.90 42.80 22.20 54.30 Pass ERW-6015 10/07/13 Gr. Beta 25.70 6.48 32.20 20.80 39.90 Pass ERW-6019 10/07/13 1-131 22.50 1.01 23.60 19.60 28.00 Pass ERW-6024 10/07/13 H-3 18397 695 17700 15500 19500 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-7 Page 61 of 181

TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

ENVIRONMENTAL, INC., 2013 (Page 1 of 2)

Concentration (a)

Known Control Lab Code (b) Date Analysis Laboratory result Activity Limits (c) Acceptance MAAP-738 02/01/13 Co-57 2.58 +/- 0.06 2.36 1.65 - 3.07 Pass MAAP-738 02/01/13 Co-60 0.01 +/- 0.03 0.00 0.00 -0.10 Pass MAAP-738 02/01/13 Cs-1 34 1.82 +/- 0.13 1.78 1.25 - 2.31 Pass MAAP-738 02/01/13 Cs-1 37 2.93 +/- 0.10 2.60 1.82 -3.38 Pass MAAP-738 02/01/13 Mn-54 4.87 +/- 0.13 4.26 2.98 - 5.54 Pass MAAP-738 02/01/13 Sr-90 1.39 +/- 0.14 1.49 1.04-1.94 Pass MAAP-738 02/01/13 Zn-65 3.84 +/- 0.20 3.13 2.19 -4.07 Pass MAAP-738 d 02/01/13 Gr. Alpha 0.14 +/- 0.03 1.20 0.36 - 2.04 Fail (1)

MAAP-738 02/01/13 Gr. Beta 0.93 +/- 0.06 0.85 0.43 -1.28 Pass MAW-806 02/01/13 Co-57 31.20 0.40 30.90 21.60 40.20 Pass MAW-806 02/01/13 Co-60 19.70 +/- 0.30 16.56 13.69 - 25.43 Pass MAW-806 02/01/13 Cs-1 34 23.20 +/- 0.50 24.40 17.10 - 31.70 Pass MAW-806 02/01/13 Cs-1 37 0.03 +/- 0.12 0.00 0.00 - 1.00 Pass MAW-806 02/01/13 Fe-55 34.00 +/- 3.30 44.00 30.80 - 57.20 Pass MAW-806 02/01/13 H-3 511.60 +/- 12.50 507.00 355.00 - 659.00 Pass MAW-806 02/01/13 K-40 2.20 +/- 0.90 0.00 0.00 - 5.00 Pass MAW-806 02/01/13 Mn-54 27.60 +/- 0.50 27.40 19.20 - 35.60 Pass MAW-806 02/01/13 Sr-90 9.30 +/- 0.80 10.50 7.40 - 13.70 Pass MAW-806 02/01/13 Zn-65 31.60 +/- 0.80 30.40 21.30 - 39.50 Pass MAW-811 02/01/13 Gr. Alpha 1.87 +/- 0.09 2.31 0.69 - 3.93 Pass MAW-811 02/01/13 Gr. Beta 13.04 +/- 0.13 13.00 6.50 - 19.50 Pass MASO-739 02/01/13 Co-57 0.60 +/- 0.50 0.00 0.00 - 5.00 Pass MASO-739 02/01/13 Co-60 739.20 +/- 28.50 691.00 484.00 - 898.00 Pass MASO-739 02/01/13 Cs-1 34 863.30 +/- 34.10 887.00 621.00 - 1153.00 Pass MASO-739 02/01/13 Cs-1 37 661.80 +/- 25.70 587.00 411.00 - 763.00 Pass MASO-739 02/01/13 K-40 745.80 +/- 33.30 625.30 437.70 - 812.90 Pass MASO-739 02/01/13 Mn-54 1.10 +/- 1.00 0.00 0.00 - 5.00 Pass MASO-739 02/01/13 Zn-65 1109.60 +/- 44.10 995.00 697.00 - 1294.00 Pass MASO-744 e 02/01/13 Sr-90 408.40 +/- 14.00 628.00 440.00 - 816.00 Fail (2)

MAVE-747 02/01/13 Co-57 10.37 +/- 0.17 8.68 6.08-11.28 Pass MAVE-747 02/01/13 Co-60 6.48 +/- 0.17 5.85 4.10 -7.61 Pass MAVE-747 02/01/13 Cs-1 34 0.02 +/- 0.04 0.00 0.00 -0.10 Pass MAVE-747 02/01/13 Cs-1 37 7.79 +/- 0.21 6.87 4.81 - 8.93 Pass MAVE-747 02/01/13 Mn-54 0.00 +/- 0.05 0.00 0.00 -0.10 Pass MAVE-747 02/01/13 Zn-65 7.29 +/- 0.33 6.25 4.38 -8.13 Pass MASO-5043 f 08/01/13 Co-57 699.60 +/- 3.90 0.00 0.00 - 5.00 Fail (3)

MASO-5043 08/01/13 Cs-1 34 1191.70 +/- 23.00 1172.00 820.00 - 1524.00 Pass MASO-5043 08/01/13 Cs-1 37 1072.00 +/- 5.10 977.00 684.00 - 1270.00 Pass MASO-5043 08/01/13 K-40 760.00 +/- 16.20 633.00 443.00 - 823.00 Pass MASO-5043 08/01/13 Mn-54 753.80 +/- 4.90 674.00 472.000 - 876.000 Pass D-8 Page 62 of 181

TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

ENVIRONMENTAL, INC., 2013 (Page 2 of 2)

Concentration (a)

Known Control Lab Code (b) Date Analysis Laboratory result Activity Limits (c) Acceptance MASO-5043 08/01/13 Sr-90 383.90 +/- 14.50 460.00 322.00 - 598.00 Pass MASO-5043 08/01/13 Zn-65 -351.50 +/- 5.50 0.00 0.00 - 0.00 Pass MAW-5094 08/01/13 Co-57 0.01 +/- 0.09 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 Co-60 23.20 +/- 0.32 23.58 16.51 - 30.65 Pass MAW-5094 08/01/13 Cs-1 34 27.60 +/- 0.58 30.40 21.00 - 39.00 Pass MAW-5094 08/01/13 Cs-1 37 32.31 +/- 0.52 31.60 22.10 - 41.10 Pass MAW-5094 08/01/13 Fe-55 39.20 +/- 3.50 53.30 37.30 - 69.30 Pass MAW-5094 08/01/13 Gr. Alpha 0.54 +/- 0.05 0.70 0.21 -1.19 Pass MAW-5094 08/01/13 Gr. Beta 5.85 +/- 0.09 5.94 2.97 - 8.91 Pass MAW-5094 08/01/13 H-3 1.20 +/- 3.00 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 K-40 2.22 +/- 0.90 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 Mn-54 0.010 +/- 0.11 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 Sr-90 6.40 +/- 0.60 7.22 5.05 - 9.39 Pass MAW-5094 08/01/13 Zn-65 35.30 +/- 0.90 34.60 24.20 - 45.00 Pass MAVE-5046 08/01/13 Co-57 0.01 +/- 0.03 0.00 0.00 - 0.00 Pass MAVE-5046 08/01/13 Co-60 0.00 +/- 0.04 0.00 0.00 - 0.00 Pass MAVE-5046 08/01/13 Cs-1 34 5.71 +/- 0.23 5.20 3.64 - 6.76 Pass MAVE-5046 08/01/13 Cs-137 7.64 +/- 0.20 6.60 4.62 - 8.58 Pass MAVE-5046 08/01/13 Mn-54 9.08 +/- 0.24 7.88 5.52 -10.24 Pass MAVE-5046 08/01/13 Zn-65 2.92 +/- 0.25 2.63 1.84 -3.42 Pass MAAP-5046 08/01/13 Co-57 3.48 +/- 0.14 3.40 1.90 -3.50 Pass MAAP-5046 08/01/13 Co-60 2.44 +/- 0.08 3.40 1.60 -3.00 Pass MAAP-5046 08/01/13 Cs-134 0.01 +/- 0.03 0.00 0.02 - 0.04 Pass MAAP-5046 08/01/13 Cs-137 3.09 +/- 0.13 2.70 1.90 -3.50 Pass MAAP-5046 08/01/13 Gr. Alpha 0.28 +/- 0.04 0.90 0.27-1.53 Pass MAAP-5046 08/01/13 Gr. Beta 1.90 +/- 0.08 1.63 0.82 - 2.45 Pass MAAP-5046 08/01/13 Mn-54 3.95 +/- 0.12 3.50 2.50 -4.60 Pass MAAP-5046 08/01/13 Sr-90 1.69 +/- 4.10 1.81 1.27 -2.35 Pass MAAP-5046 08/01/13 Zn-65 3.27 +/- 0.18 2.70 2.50 -4.60 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: MAW (water), MAAP (air filter), MASO (soil), MAVE (vegetation).

c 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.

(1) The filter was recounted overnight, no significant alpha activity could be detected.

(2) The sample was reanalyzed using additional fuming nitric separations. Result of reanalysis: 574.4 +/- 35.2 Bq/kg.

(3) Interference from Eu-1 52 resulted in misidentification of Co-57.

D-9 Page 63 of 181

APPENDIX E EFFLUENT DATA Page 64 of 181

TABLE OF CONTENTS INT R 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 Page 65 of 181

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 ii Page 66 of 181

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 2013 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 Kr-85 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.

Page 67 of 181

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 4.68E+00 mrem for the year, where a factor to analyze exposure based on habits of the real individual of 3.33E-01 was applied. 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, 10CFR72 and 40CFR190.

2 Page 68 of 181

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 O.OOE+00 microcuries of fission and activation gases was released with a maximum average release rate of 0.OOE+00 pCi/sec during any one quarter period.

A total of 0.OOE+00 microcuries of beta-gamma emitters was released as airborne particulate matter with a maximum average quarterly release rate of 0.00E+00 pCi/sec. Alpha-emitting radionuclides were not measurable. Also, 6.49E-02 curies of tritium were released with a maximum average quarterly release rate of 2.40E-03 pCi/sec.

1.2 Liquids Released to Lake Michigan A total of 1.20E+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 4.96E+09 liters of water. These wastes were released at a maximum quarterly average concentration of 0.OOE+00 pCi/ml. A total of 0.OOE-00 curies of tritium was released. Alpha activity released totaled 0.OOE+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 2013.

2.0 SOLID RADIOACTIVE WASTE There were 33 solid radioactive waste shipments in 2013. For more detail, refer to the Zion Station 2013 Annual radioactive Effluent Release Report.

3.0 DOSE TO MAN 3.1 Gaseous Effluent Pathways Table 3.1-1 summarizes the doses resulting from releases of airborne radioactivity via the different exposure pathways.

3 Page 69 of 181

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 1.65E-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 0.OOE+00 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 0.00E+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

Page 70 of 181

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 O.OOE+00 mrem and no organ dose exceeded O.OOE+00 mrem (Table 3.2-1).

3.3 Direct Radiation During the period January to December 2013, Zion Station during decommissioning has stored containerized radioactive waste that contributed a total of 4.68E+00 mrem to the whole body of a maximally exposed individual at site boundary taking into account 5

Page 71 of 181

the occupancy factor of 3.33E-01 calculated in Zion Station ES&H Technical Support Document(TSD)13-009 "Member of the Public Dose from All Onsite Sources."

3.4 Assessment of Dose to Member of Public During the period January to December, 2013, 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) and Table 3.3(based on TLD results):

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).

0 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-1 33, 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).

0 The 10CFR72.104 limit on Total Effective Dose Equivalent to individual members of the public from combined effluents and radioactive material including ISFSI(25 mrem).

4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix 11. 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 98.9% during 2013 (Table 3.5-1).

6 Page 72 of 181

APPENDIX E-1 DATA TABLES AND FIGURES E-1.1 Page 73 of 181

Table 3.1-1 Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 01/01/2013 00:00 Period End Date ...... .. 04/01/2013 00:00 Period Duration (min): 1.296E+05 Coefficient Type ..... : Historical

=== RELEASE DATA Total Release Duration (minutes) ...................................... 5.184E+05 Total Release Volume (cf) ............................................. 1.681E+10 Average Release Flowrate (cfm) ........................................ 3.243E+04 Average Period Flowrate (cfm) ......................................... 1.297E+05

=== NUCLIDE DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC H-3 1.87E+04 3.93E-II 3.93E-04 1.00E-07 H-3 1.87E+04 3.93E-11 3.93E-04 Total 1.87E+04 3.93E-11 3.93E-04 E-I1.2 Page 74 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 01/01/2013 00:00 Period End Date ...... .. 04/01/2013 00:00 Period Duration (min) : 1.296E+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 5. 90E- 06 5. 90E-06 5. 90E-06 5. 90E-06 5. 90E-06 0 OOE+00 5 90E-06 AVEG 0.OOE+00 1. 06E-05 1.06E-05 1. 06E-05 1. 06E-05 1.06E-05 0 OOE+00 1. 06E-05 AGMILK 0.OOE+00 7 .30E-06 7. 30E-06 7. 30E-06 7 .30E-06 7. 30E-06 0 OOE+00 7. 30E-06 ACMEAT 0.OOE+00 1. 52E-06 1. 52E-06 1. 52E-06 1. 52E-06 1.52E-06 0 OOE+00 1. 52E-06 ACMILK 0.OOE+00 3. 58E- 06 3. 58E-06 3. 58E-06 3. 58E-06 3.58E-06 0 OOE+00 3. 58E-06 TINHL 0.OOE+00 5. 96E-06 5. 96E-06 5. 96E-06 5. 96E-06 5. 96E- 06 0. OOE+00 5. 96E-06 TVEG 0.OOE+00 1. 21E-05 1.21E-05 1.21E-05 1 .21E-05 1.21E-05 0 OOE+00 1.21E-05 TGMILK 0.OOE+00 9. 49E-06 9 .49E-06 9 .49E-06 9 .49E-06 9.49E-06 0. OOE+00 9.49E-06 TCMEAT 0.OOE+00 9. 07E-07 9. 07E-07 9. 07E-07 9. 07E-07 9.07E-07 0. OOE+00 9. 07E-07 TCMILK 0.OOE+00 4. 65E-06 4. 65E-06 4 .65E-06 4. 65E-06 4.65E-06 0. OOE+00 4. 65E-06 CINHL 0.OOE+00 5. 26E-06 5 .26E-06 5 .26E-06 5 .26E-06 5.26E-06 0. OOE+00 5.26E-06 CVEG 0.OOE+00 1. 88E-05 1.88E-05 1. 88E-05 1. 88E-05 1.88E-05 0. OOE+00 1.88E-05 CGMILK 0.OOE+00 1. 50E-05 1.50E-05 1. 50E-05 1. 50E-05 1.50E-05 0. OOE+00 1. 50E-05 CCMEAT 0.OOE+00 1. lOE-06 1.10E-06 1. 10E-06 1.10E-06 1.10E-06 0. OOE+00 1.10E-06 CCMILK 0.OOE+00 7 37E-06 7 .37E-06 7. 37E-06 7. 37E-06 7. 37E-06 0. OOE+00 7. 37E-06 IINHL 0.OOE+00 3. 03E- 06 3 .03E-06 3. 03E-06 3. 03E-06 3.03E-06 0. OOE+00 3. 03E-06 IGMILK 0.OOE+00 2 .28E-05 2 .28E-05 2. 28E-05 2 .28E-05 2 .28E-05 0. OOE+00 2 .28E-05 ICMILK 0.OOE+00 1. 12E-05 1.12E-05 1. 12E-05 1. 12E-05 1.12E-05 0. OOE+00 1.12E-05

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0.OOE+00 2.89E-05 2.89E-05 2.89E-05 2.89E-05 2.89E-05 0.OOE+00 2.89E-05 TEEN 0.OOE+00 3.31E-05 3.31E-05 3.31E-05 3.31E-05 3.31E-05 0.OOE+00 3.31E-05 CHILD 0.OOE+00 4.76E-05 4.76E-05 4.76E-05 4.76E-05 4.76E-05 0.OOE+00 4.76E-05 INFANT 0.OOE+00 3.70E-05 3.70E-05 3.70E-05 3.70E-05 3.70E-05 0.OOE+00 3.70E-05 E-1.3 Page 75 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 01/01/2013 00:00 Period End Date ...... .. 04/01/2013 00:00 Period Duration (min): 1.296E+05 Coefficient Type ..... .. Historical Receptor ............... 5 Composite Crit. Receptor - IP Distance (meters) .... .. 0.0 Compass Point ........ .. 0.0

=== MAXIMUM PERIOD DOSE TO LIMIT (1kny 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 4.76E-05 31-day 2.25E-01 2.12E-02 3.OOE-01 1.59E-02 Quarter 5.63E+00 8.46E-04 7.50E+00 6.35E-04 Annual 1.13E+01 4.23E-04 1.50E+01 3.17E-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 4.76E-05 31-day 1.50E-01 3.17E-02 2.OOE-01 2.38E-02 Quarter 5.25E+00 9.06E-04 7.50E+00 6.35E-04 Annual 1.05E+01 4.53E-04 1.50E+01 3.17E-04 Critical Pathway ........ :.2 Vegetation (VEG)

Major Contributors ...... .. 0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02 E-! .4 Page 76 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 04/01/2013 00:00 Period End Date ...... .. 07/01/2013 00:00 Period Duration (min): 1.310E+05 Coefficient Type ..... : Historical RELEASE DATA Total Release Duration (minutes) ...................................... 5.242E+05 Total Release Volume (cf) ............................................. 1.704E+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 1.30E+04 2.69E-II 2.69E-04 1.OOE-07 H-3 1.30E+04 2.69E-11 2.69E-04 H-3 Total 1.30E+04 2.69E-11 2.69E-04 E-1.5 Page 77 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 04/i 01/2013 00:00 Period End Date ...... .. 07/'01/2013 00:00 Period Duration (min): 1.3: 10E+05 Coefficient Type ..... : His' torical 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. 10E- 06 4. OE-06 4. OE-06 4. lOE-06 4. IOE-06 0. OOE+00 4. OE-06 AVEG 0. OOE+00 7. 36E-06 7. 36E-06 7 .36E-06 7. 36E-06 7. 36E-06 0 OOE+00 7. 36E-06 AGMILK 0. OOE+00 5. 07E-06 5. 07E-06 5. 07E-06 5. 07E-06 5.07E-06 0. OOE+00 5.07E-06 ACMEAT 0. OOE+00 1. 06E-06 1. 06E-06 1.06E-06 1. 06E-06 1.06E-06 0 OOE+00 1.06E-06 ACMILK 0. OOE+00 2 .48E-06 2 .48E-06 2 .48E-06 2 .48E-06 2 .48E-06 0 OOE+00 2.48E-06 TINHL 0 OOE+00 4. 14E-06 4. 14E-06 4. 14E-06 4. 14E-06 4. 14E-06 0 OOE+00 4. 14E-06 TVEG 0. OOE+00 8 .42E-06 8.42E-06 8.42E-06 8 .42E-06 8.42E-06 0. OOE+00 8.42E-06 TGMILK 0. OOE+00 6. 59E-06 6. 59E-06 6. 59E-06 6. 59E-06 6.59E-06 0. OOE+00 6. 59E-06 TCMEAT 0. OOE+00 6. 30E-07 6.30E-07 6. 30E-07 6. 30E-07 6. 30E-07 0 OOE+00 6. 30E-07 TCMILK 0. OOE+00 3 .23E-06 3 .23E-06 3 .23E-06 3 .23E-06 3.23E-06 0. OOE+00 3.23E-06 CINHL 0. OOE+00 3 65E-06 3 .65E-06 3 .65E-06 3. 65E-06 3. 65E-06 0. OOE+00 3. 65E-06 CVEG 0 OOE+00 1. 31E-05 1.31E-05 1. 31E-05 1. 31E-05 1. 31E-05 0 OOE+00 1.31E-05 CGMILK 0 OOE+00 1. 04E-05 1.04E-05 1. 04E-05 1. 04E-05 1. 04E-05 0. OOE+00 1.04E-05 CCMEAT 0. OOE+00 7. 64E-07 7 .64E-07 7. 64E-07 7. 64E-07 7. 64E- 07 0 OOE+00 7.64E-07 CCMILK 0. OOE+00 5. 12E-06 5. 12E-06 5. 12E-06 5. 12E-06 5. 12E-06 0. OOE+00 5. 12E-06 IINHL 0 OOE+00 2. lOE-06 2 .10E-06 2 lOE-06 2 lOE-06 2 .1OE-06 0 OOE+00 2. lOE-06 IGMILK 0 OOE+00 1. 58E- 05 1.58E-05 1. 58E-05 1. 58E-05 1.58E-05 0 OOE+00 1.58E-05 ICMILK 0 OOE+00 7. 77E-06 7.77E-06 7 .77E-06 7. 77E-06 7. 77E-06 0 OOE+00 7.77E-06

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0. OOE+00 2. 01E-05 2. 01E-05 2.01E-05 2.01E-05 2. 01E-05 0.OOE+00 2. 01E-05 TEEN 0 .OOE+00 2 .30E-05 2. 30E-05 2 .30E-05 2.30E-05 2. 30E-05 0. OOE+00 2 .30E-05 CHILD 0. OOE+00 3. 30E-05 3. 30E-05 3 .30E-05 3.30E-05 3.30E-05 0. OOE+00 3 .30E-05 INFANT 0 .OOE+00 2 .57E-05 2. 57E-05 2 .57E-05 2.57E-05 2.57E-05 0. OOE+00 2. 57E-05 E-1.6 Page 78 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 04/01/2013 00:00 Period End Date ...... .. 07/01/2013 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 (2Any 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 3.30E-05 31-day 2.25E-01 1.47E-02 3.OOE-01 1.1OE-02 Quarter 5.63E+00 5.87E-04 7.SOE+00 4.41E-04 Annual 1.13E+01 2.94E-04 1.50E+01 2.20E-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 3.30E-0 5 31-day 1.50E-01 2.20E-02 2.OOE-01 1.65E-02 Quarter 5.25E+00 6.29E-04 7.50E+00 4.41E-04 Annual 1.05E+01 3.15E-04 1.50E+01 2.20E-04 Critical Pathway ........ .. 2 Vegetation (VEG)

Major Contributors ...... .. 0.0 % or greater to total Nuclide Percentage H-3 9.99E+01 E-1.7 Page 79 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 07/01/2013 00:00 Period End Date ...... .. 10/01/2013 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 H-3 1.50E+04 3.08E-11 3.08E-04 1.OOE-07 1.50E+04 3.08E-II 3.08E-04 H-3 1.50E+04 3.08E-11 3.08E-04 Total E-1.8 Page 80 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 07/i 01/2013 00:00 Period End Date ...... :.10/i 01/2013 00:00 Period Duration (min): 1.3: 25E+05 Coefficient Type ..... .. Hisitorical 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. 74E- 06 4. 74E-06 4. 74E-06 4. 74E-06 4. 74E-06 0 OOE+00 4. 74E-06 AVEG 0 OOE+00 8. 51E-06 8. 51E-06 8.51E-06 8. 51E-06 8.51E-06 0 OOE+00 8.51E-06 AGMILK 0 OOE+00 5. 86E-06 5.86E-06 5.86E-06 5. 86E-06 5. 86E-06 0 OOE+00 5. 86E-06 ACMEAT 0 OOE+00 1. 22E-06 1.22E-06 1.22E-06 1. 22E-06 1.22E-06 0 OOE+00 1.22E-06 ACMILK 0 OOE+00 2 .87E-06 2. 87E-06 2 .87E-06 2. 87E-06 2. 87E-06 0 OOE+00 2.87E-06 TINHL 0 OOE+00 4. 78E-06 4. 78E-06 4. 78E-06 4. 78E-06 4.78E-06 0. OOE+00 4. 78E-06 TVEG 0 OOE+00 9 .73E-06 9.73E-06 9.73E-06 9. 73E-06 9.73E-06 0. OOE+00 9.73E-06 TGMILK 0 OOE+00 7. 62E-06 7. 62E-06 7.62E-06 7. 62E-06 7.62E-06 0. OOE+00 7.62E-06 TCMEAT 0 OOE+00 7. 29E-07 7 .29E-07 7 .29E-07 7 .29E-07 7 .29E-07 0. OOE+00 7 .29E-07 TCMILK 0 OOE+00 3. 74E-06 3 .74E-06 3. 74E-06 3. 74E-06 3 .74E-06 0. OOE+00 3. 74E-06 CINHL 0 OOE+00 4. 22E-06 4 .22E-06 4 .22E-06 4 .22E-06 4.22E-06 0. OOE+00 4.22E-06 CVEG 0 OOE+00 1. 51E-05 1.51E-05 1.51E-05 1. 51E-05 1. 51E-05 0. OOE+00 1. 51E-05 CGMILK 0. OOE+00 1. 21E-05 1.21E-05 1.21E-05 1. 21E-05 1.21E-05 0 OOE+00 1.21E-05 CCMEAT 0. OOE+00 8. 83E-07 8 .83E-07 8. 83E-07 8. 83E-07 8.83E-07 0 OOE+00 8.83E-07 CCMILK 0. OOE+00 5. 92E-06 5.92E-06 5. 92E-06 5. 92E-06 5. 92E-06 0 OOE+00 5. 92E-06 IINHL 0. OOE+00 2 .43E-06 2 .43E-06 2 .43E-06 2 .43E-06 2.43E-06 0 OOE+00 2.43E-06 IGMILK 0. OOE+00 1. 83E-05 1.83E-05 1.83E-0S 1. 83E-0S 1.83E-OS 0 OOE+00 1.83E-05 ICMILK 0 OOE+00 8. 98E-06 8 .98E-06 8. 98E-06 8. 98E-06 8.98E-06 0 OOE+00 8. 98E-06

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0.OOE+00 2.32E-05 2.32E-05 2.32E-05 2.32E-05 2.32E-05 0.00E+00 2.32E-05 TEEN 0.OOE+00 2.66E-0S 2.66E-05 2.66E-OS 2.66E-OS 2.66E-05 0.OOE+00 2.66E-05 CHILD 0.OOE+00 3.82E-OS 3.82E-05 3.82E-0S 3.82E-05 3.82E-05 0.OOE+00 3.82E-OS INFANT 0.OOE+00 2.97E-05 2.97E-05 2.97E-05 2.97E-05 2.97E-05 0.OOE+00 2.97E-05 E-1.9 Page 81 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 07/01/2013 00:00 Period End Date ...... :.10/01/2013 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 3.82E-05 31-day 2.25E-01 1.70E-02 3.OOE-01 1.27E-02 Quarter 5.63E+00 6.79E-04 7.50E+00 5.10E-04 Annual 1.13E+01 3.40E-04 1.50E+01 2.55E-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 (Irot 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 3.82E-05 31-day 1.50E-01 2.55E-02 2.OOE-01 1.91E-02 Quarter 5.25E+00 7.28E-04 7.50E+00 5.10E-04 Annual 1.05E+01 3.64E-04 1.50E+01 2.55E-04 Critical Pathway ......... 2 Vegetation (VEG)

Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02 E-1.10 Page 82 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 10/01/2013 00:00 Period End Date ...... .. 01/01/2014 00:00 Period Duration (min): 1.325E+05 Coefficient Type ..... : Historical

=== RELEASE DATA Total Release Duration (minutes) ...................................... 5.299E+05 Total Release Volume (cf) ............................................. 1.717E+10 Average Release Flowrate (cfm) ........................................ 3.240E+04 Average Period Flowrate (cfm) ......................................... 1.296E+05

=== NUCLIDE DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC H-3 1.82E+04 3.74E-II 3.74E-04 1.00E-07 H-3 1.82E+04 3.74E-11 3.74E-04 Total 1.82E+04 3.74E-11 3.74E-04 E-1.1I! Page 83 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 10/01/2013 00:00 Period End Date ...... .. 01/01/2014 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 5. 75E-06 5.75E-06 5. 75E-06 5.75E-06 5.75E-06 0. OOE+00 5. 75E-06 AVEG 0 OOE+00 1. 03E- 05 1.03E-05 1. 03E-05 1.03E-05 1. 03E-05 0. OOE+00 1. 03E-05 AGM ILK 0. OOE+00 7. 10E-06 7. 1OE-06 7 lOE-06 7.10E-06 7. lOE-06 0. OOE+00 7. lOE-06 ACMEAT 0 OOE+00 1.48E-06 1.48E-06 1 .48E-06 1.48E-06 1.48E-06 0. OOE+00 1.48E-06 ACMILK 0 OOE+00 3. 48E- 06 3 .48E-06 3 .48E-06 3.48E-06 3.48E-06 0. OOE+00 3.48E-06 TINHL 0 OOE+00 5.80E-06 5. 80E-06 5 80E-06 5.80E-06 5.80E-06 0 OOE+00 5.80E-06 TVEG 0 OOE+00 1. 18E-05 1.18E-05 1. 18E-05 1. 18E-05 1.18E-05 0 OOE+00 1.18E-05 TGMILK 0 OOE+00 9. 24E- 06 9 .24E-06 9 .24E-06 9. 24E-06 9.24E-06 0 OOE+00 9.24E-06 TCMEAT 0 OOE+00 8. 83E-07 8. 83E-07 8. 83E-07 8. 83E-07 8.83E-07 0. OOE+00 8.83E-07 TCMILK 0 OOE+00 4. 53E- 06 4. 53E-06 4. 53E-06 4. 53E-06 4.53E-06 0 OOE+00 4.53E-06 CINHL 0 OOE+00 5. 12E- 06 5. 12E-06 5. 12E-06 5. 12E-06 5. 12E-06 0 OOE+00 5. 12E-06 CVEG 0 OOE+00 1. 83E-05 1.83E-05 1. 83E-05 1. 83E-05 1.83E-05 0 OOE+00 1.83E-05 CGMILK 0 OOE+00 1.46E-05 1.46E-05 1. 46E-05 1. 46E-05 1.46E-05 0 OOE+00 1.46E-05 CCMEAT 0 OOE+00 1. 07E-06 1.07E-06 1. 07E-06 1. 07E-06 1. 07E- 06 0 OOE+00 1.07E-06 CCMILK 0 OOE+00 7. 18E-06 7.18E-06 7. 18E-06 7. 18E-06 7. 18E-06 0. OOE+00 7. 18E-06 IINHL 0 OOE+00 2. 95E-06 2. 95E-06 2 .95E-06 2. 95E-06 2. 95E-06 0 OOE+00 2.95E-06 IGMILK 0 OOE+00 2 . 22E- 05 2 .22E-05 2 .22E-05 2. 22E-05 2.22E-05 0 OOE+00 2 .22E-05 ICMILK 0 OOE+00 1.09E-05 1.09E-05 1.09E-05 1.09E-05 1. 09E-05 0 00E+00 1. 09E-05

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0. OOE+00 2. 81E-05 2 .81E-05 2.81E-05 2.81E-05 2.81E-05 0 .OOE+00 2.81E-05 TEEN 0. OOE+00 3. 22E- 05 3 .22E-05 3.22E-05 3.22E-05 3.22E-05 0. OOE+00 3.22E-05 CHILD 0. OOE+00 4. 63E-05 4 .63E-05 4.63E-05,4.63E-05 4.63E-05 0. OOE+00 4. 63E-05 INFANT 0. OOE+00 3. 60E-05 3. 60E-05 3.60E-05 3.60E-05 3.60E-05 0. OOE+00 3.60E-05 E-1.12 Page 84 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 10/01/2013 00:00 Period End Date ...... .. 01/01/2014 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 4. 63E-0 5 31-day 2.25E-01 2.06E-02 3.OOE-01 1.54E-02 Quarter 5.63E+00 8.24E-04 7.50E+00 6.18E-04 Annual 1.13E+01 4.12E-04 1.50E+01 3.09E-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 4.63E-0 5 31-day 1.50E-01 3.09E-02 2.OOE-01 2.32E-02 Quarter 5.25E+00 8.82E-04 7.50E+00 6.18E-04 Annual 1.05E+01 4.41E-04 1.50E+01 3.09E-04 Critical Pathway ......... 2 Vegetation (VEG)

Major Contributors ...... .. 0.0 % or greater to total Nuclide Percentage H-3 1.OOE+02 E-1.13 Page 85 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 01/01/2013 00:00 Period End Date ...... .. 01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... : Historical RELEASE DATA Total Release Duration (minutes) ...................................... 2.102E+06 Total Release Volume (cf) ............................................. 6.824E+10 Average Release Flowrate (cfm) ........................................ 3.246E+04 Average Period Flowrate (cfm) ......................................... 1.298E+05

=== NUCLIDE DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC 6.49E+04 3.36E-II 3.36E-04 1.00E-07 H-3 6.49E+04 3.36E-11 3.36E-04 H-3 Total 6.49E+04 3.36E-11 3.36E-04 E-1. 14 Page 86 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... : 01/ 01/2013 00:00 Period End Date ...... :.01/ 01/2014 00:00 Period Duration (min): 5.2 56E+05 Coefficient Type ..... :.His' torical 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. 05E-05 2. OSE-05 2. OSE-05 2. 05E-05 2.05E-05 0 OOE+00 2. 05E-05 AVEG 0 OOE+00 3 68E-05 3.68E-05 3.68E-05 3. 68E-05 3.68E-05 0 OOE+00 3. 68E-05 AGMILK 0 OOE+00 2. 53E-05 2. 53E-05 2.53E-05 2. 53E-05 2.53E-05 0 OOE+00 2. 53E-05 ACMEAT 0 OOE+00 5. 29E-06 5 .29E-06 5 .29E-06 5.29E-06 5.29E-06 0 OOE+00 5 .29E-06 ACMILK 0 OOE+00 1. 24E-05 1.24E-05 1 .24E-05 1. 24E-05 1.24E-05 0 OOE+00 1.24E-05 TINHL 0 OOE+00 2 07E-05 2. 07E-05 2. 07E-05 2 .07E-05 2. 07E-05 0 OOE+00 2. 07E-05 TVEG 0 OOE+00 4. 21E-05 4.21E-05 4.21E-05 4. 21E-05 4.21E-05 0 OOE+00 4.21E-05 TGMILK 0 OOE+00 3. 29E-05 3 .29E-05 3.29E-05 3 .29E-05 3.29E-05 0. OOE+00 3 .29E-05 TCMEAT 0 OOE+00 3. 15E-06 3.15E-06 3.15E-06 3. 15E-06 3.15E-06 0 OOE+00 3. 15E-06 TCMILK 0 OOE+00 1. 62E-05 1.62E-05 1.62E-05 1. 62E-05 1.62E-05 0 OOE+00 1.62E-05 CINHL 0 OOE+00 1. 83E-05 1.83E-05 1.83E-05 1. 83E-05 1.83E-05 0. OOE+00 1.83E-05 CVEG 0 OOE+00 6. 53E-05 6. 53E-05 6.53E-05 6. 53E-05 6. 53E-05 0 OOE+00 6.53E-05 CGMILK 0 OOE+00 5.22E-05 5.22E-05 5.22E-05 5 .22E-05 5.22E-05 0 OOE+00 5.22E-05 CCMEAT 0 OOE+00 3.82E-06 3.82E-06 3.82E-06 3. 82E-06 3.82E-06 0 OOE+00 3.82E-06 CCMILK 0 OOE+00 2.56E-05 2. 56E-05 2. 56E-05 2 56E-05 2.56E-05 0 OOE+00 2. 56E-05 I INHL 0 OOE+00 1. 05E-05 1.05E-05 1.05E-05 1. 05E-05 1.05E-05 0 OOE+00 1. 05E-05 IGMILK 0 OOE+00 7.92E-05 7. 92E-05 7. 92E-05 7. 92E-05 7. 92E-05 0 OOE+00 7. 92E-05 ICMILK 0 OOE+00 3. 88E-05 3. 88E-05 3.88E-05 3. 88E-05 3.88E-05 0 OOE+00 3. 88E-05

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 0.OOE+00 1.OOE-04 1.OOE-04 1.OOE-04 1.OOE-04 1.OOE-04 0.OOE+00 1.OOE-04 TEEN 0.OOE+00 1.15E-04 1.15E-04 1.15E-04 1.15E-04 1.15E-04 0.OOE+00 1.15E-04 CHILD 0.OOE+00 1.65E-04 1.65E-04 1.65E-04 1.65E-04 1.65E-04 0.OOE+00 1.65E-04 INFANT 0.OOE+00 1.29E-04 1.29E-04 1.29E-04 1.29E-04 1.29E-04 0.OOE+00 1.29E-04 E-1.15 Page 87 of 181

Table 3.1-1 (cont'd)

Maximum Dose Resulting from Airborne Releases Zion Station 2013 GASEOUS RELEASE AND DOSE

SUMMARY

REPORT (Composite Critical Receptor - Limited Analysis)

Release ID ............. 1 All Gas Releases Period Start Date .... 01/01/2013 00:00 Period End Date ...... :.01/01/2014 00:00 Period Duration (min): 5.256E+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 1.65E-04 31-day 2.25E-01 7.34E-02 3.OOE-01 5.51E-02 Quarter 5.63E+00 2.94E-03 7.50E+00 2.20E-03 Annual 1.13E+01 1.47E-03 1.50E+01 1.10E-03 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 1.65E-04 31-day 1.50E-01 1.10E-01 2.OOE-01 8.26E-02 Quarter 5.25E+00 3.15E-03 7.50E+00 2.20E-03 Annual 1.05E+01 1.57E-03 1.50E+01 1.10E-03 Critical Pathway ......... 2 Vegetation (VEG)

Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage H-3 9.99E+01 E-1.16 Page 88 of 181

Table 3.2-1 Maximum dose Resulting from Liquid Effluents Zion Station 2013 LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... :.01/01/2013 00:00 Period End Date ....... :.04/01/2013 00:00 Period Duration (mins): 1.296E+05

=== RELEASE DATA Total Release Duration (minutes) ..................................... 1.296E+05 Total Undiluted Volume Released (gallons) ............................ 8.912E+05 Average Undiluted Flowrate (gpm) ..................................... 6.876E+00 Total Dilution Volume (gallons) ...................................... 3.240E+08 Average Dilution Flowrate (gpm) ...................................... 2.500E+03 NUCLIDE DATA J----Undiluted-I I- ---- Diluted ------

Average Percent Average Percent Nuclide uCi uCi/ml of 5*ECC uCi/ml of 5*EC E-1.17 Page 89 of 181

Table 3.2-1 (cont'd)

Maximum dose Resulting from Liquid Effluents Zion Station 2013 LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... .. 04/01/2013 00:00 Period End Date ....... :.07/01/2013 00:00 Period Duration (mins) : 1.310E+05 RELEASE DATA Total Release Duration (minutes) ..................................... 1.310E+05 Total Undiluted Volume Released (gallons) ............................ 9.501E+05 Average Undiluted Flowrate (gpm) ..................................... 7.250E+00 Total Dilution Volume (gallons) ...................................... 3.276E+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-1.18 Page 90 of 181

Table 3.2-1 (cont'd)

Maximum dose Resulting from Liquid Effluents Zion Station 2013 LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... .. 07/01/2013 00:00 Period End Date ....... :.10/01/2013 00:00 Period Duration (mins) : 1.325E+05

=== RELEASE DATA Total Release Duration (minutes) ..................................... 1.325E+05 Total Undiluted Volume Released (gallons) ............................... 7.091E+05 Average Undiluted Flowrate (gpm) ..................................... 5.352E+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-1.19 Page 91 of 181

Table 3.2-1 (cont'd)

Maximum dose Resulting from Liquid Effluents Zion Station 2013 LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... .. 10/01/2013 00:00 Period End Date ....... .. 01/01/2014 00:00 Period Duration (mins) : 1.325E+05

=== RELEASE DATA Total Release Duration (minutes) ..................................... 1.325E+05 Total Undiluted Volume Released (gallons) ............................ 6.270E+05 Average Undiluted Flowrate (gpm) ..................................... 4.733E+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 Page 92 of 181

Table 3.2-1 (cont'd)

Maximum dose Resulting from Liquid Effluents Zion Station 2013 LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... :.01/01/2013 00:00 Period End Date ....... 01/01/2014 00:00 Period Duration (mins) : 5.256E+05

=== RELEASE DATA Total Release Duration (minutes) ..................................... 5.256E+05 Total Undiluted Volume Released (gallons) ............................ 3.177E+06 Average Undiluted Flowrate (gpm) ..................................... 6.045E+00 Total Dilution Volume (gallons) ...................................... 1.314E+09 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 Page 93 of 181

Table 3.3-1 Maximum Dose Resulting from Direct Radiation Zion Station 2013 Surveys indicate East fence line in Sector H of Zion site boundary was exposed to direct gamma radiation from 40' sealand shipping container ESUU #500031 during Quarter 1 of 2013. The shipping container was moved prior to Quarter 2. Direct radiation dose was calculated using habit's of the real individual as discussed in Zion ES&H TSD 13-009 for the affected sector. Data for calculation is indicated in chart below:

TLD Z-13-1 Control TLD 2.60E+OlmR TLD Z-13-2 Control TLD 2.20E+OlmR TLD Z-108-1 Sector H fence line 3.80E+OlmR TLD TLD Z-108-2 Sector H fence line 3.OOE+OlmR TLD Number of hours per 7.30E+02 hours per month of TLD quarter exposure ES&H TSD 13-009 2.92E+03 hours per 2.44E+02 hours per occupancy factor for year quarter East fence line Conservative 1.00E+00 mR =

conversion factor 1.00E+00mrem from mR to mrem Average control TLD exposure to background radiation =

2.40E+OlmRMaximum exposure of Sector H fence line TLD location Z-108= 3.80E+OlmR(3.80E+OlmR R - 2.40E+OlmR)/ 7.30E+02 hrs per qtr = 1.92e-02 mR/hr 1.92e-02mR/hr*2.44E+02 hours = 4.68E+OOmR = 4.68E+00mrem Dose was a result of waste from combination of Unit 1 and Unit 2 thus the dose will be considered divided between the two units.

Unit Qtr 1 Qtr 2 Qtr 3 Qtr 4 2013 annual dose(mrem) dose(mrem) dose(mrem) dose(mrem) dose(mrem)

Unit 1 2.34E+00 O.OOE+00 O.OOE+00 O.OOE+00 2.34E+00 Unit 2 2.34E+00 O.OOE+00 O.OOE+00 O.OOE+00 2.34E+00 ISFSI O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 E- 1.22 Page 94 of 181

Table 3.4-1 ZION STATION 2013 Unit 1 IOCFR20 Compliance Assessment

1. 10CFR 20.1301 (a) (1) Compliance Total Effective Dose Equivalent 2.34E+00 mrem/year 10 CFR 20.1301 (a) (1) limit 100 mrem/year

% of the limit 2.34E+00%

2. Compliance Summary IOCFR20 I " Qtr. 2 Qtr. 3rd Qtr. 4 th Qtr % of Limit TE DE 2.34E+00 1.65E-05 1. 91E-05 2.32E-05 2.34E+00 E-1.23 Page 95 of 181

Table 3.4-1(continued)

ZION STATION 2013 Unit 2 10CFR20 Compliance Assessment I. IOCFR 20.1301 (a) (1) Compliance Total Effective Dose Equivalent 2.34E+00 mrem/year 10 CFR 20.1301 (a) (1) limit 100 mrem/year

% of the limit 2.34E+00%

2. Compliance Summary IOCFR20 1s' Qtr. 2 Qtr. 3" Qtr. 4t' Qtr % of Limit TEDE 2.34E+00 1.65E-05 1.91E-05 2.32E-05 2.34E+00 E- 1.24 Page 96 of 181

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) 9.81 E-05 mrem East skin (4) 9.81 E-05 mrem East organ (5)(child liver) 9.81 E-05 mrem East Unit 2:

Dose Maximum Value Sector Affected gamma air (1) O.OOE+00 mrad beta air (2) O.OOE+00 mrad whole body (3) 9.81 E-05 mrem East skin (4) 9.81 E-05 mrem East organ (5) (child liver) 9.81 E-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-1.25 Page 97 of 181

APPENDIX F METEOROLOGICAL DATA Page 98 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 NNE 0 0 0 0 0 0 0 NE 0 1 2 2 0 0 5 ENE 0 0 2 0 0 3 E 0 0 0 0 0 ESE 0 1 2 0 0 0 3 SE 0 7 1 0 0 0 8 SSE 0 3 8 0 0 0 11 S 0 0 1 0 0 0 1 SSW 0 2 3 4 1 0 10 SW 0 0 5 2 0 8 WSW 0 1 17 7 2 0 27 W 0 1 20 14 0 0 35 0 8 15 6 0 0 29 NW 0 2 32 3 0 0 37 NNW 0 1 1 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 29 107 40 4 0 180 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: 246 F-I Page 99 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 2 1 0 3 NNE 0 2 0 0 0 0 2 NE 0 2 1 2 0 0 5 ENE 0 0 0 0 0 0 0 E 0 1 0 0 0 2 ESE 0 1 1 0 0 0 2 SE 0 0 0 0 0 SSE 0 3 0 0 0 0 3 S 0 0 2 0 0 0 2 SSW 0 2 0 5 SW 0 2 2 0 0 5 WSW 0 0 4 3 2 0 9 W 0 2 7 4 0 0 13 WNW 0 5 8 0 0 14 NW 0 7 12 1 0 0 20 NNW 0 3 4 0 0 0 7 Variable 0 0 Total 28 44 17 4 93 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: 246 F-2 Page 100 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 2 6 0 0 9 NNE 0 2 3 2 0 0 7 NE 0 1 0 0 0 0 1 ENE 0 1 0 2 0 0 3 E 0 2 1 0 0 0 3 ESE 0 1 1 0 0 0 2 SE 0 1 0 0 0 0 1 SSE 0 1 2 2 0 0 5 S 0 3 2 0 0 0 5 SSW 0 3 2 3 1 0 9 SW 0 1 2 6 0 0 9 WSW 1 6 10 4 0 0 21 W 0 3 12 7 0 0 22 WNW 0 8 13 6 0 0 27 NW 0 3 12 1 0 0 16 NNW 0 2 6 0 0 0 8 Variable 0 0 0 0 0 0 0 Total 1 39 68 39 1 0 148 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: 246 F-3 Page 101 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 1 4 19 23 0 0 47 NNE 1 5 9 16 1 0 32 NE 3 3 6 4 3 0 19 ENE 0 2 7 4 4 0 17 E 0 4 6 8 5 0 23 ESE 2 8 2 3 5 0 20 SE 0 2 8 0 0 0 10 SSE 0 9 35 38 6 0 88 S 2 12 38 2 0 0 54 SSW 3 17 26 5 1 0 52 SW 2 10 41 18 3 0 74 WSW 3 25 52 13 6 0 99 W 3 56 86 23 4 0 172 WNW 3 61 56 17 2 0 139 1 60 55 1 0 0 117 NNW 0 31 70 7 0 0 108 Variable 0 0 0 0 0 0 0 Total 24 309 182 40 0 1071 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: 246 F-4 Page 102 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 2 5 0 0 0 10 NNE 2 1 6 0 0 0 9 NE 0 2 1 5 0 0 8 ENE 1 3 4 0 0 0 8 E 0 3 1 0 0 0 4 ESE 1 3 0 0 0 0 4 SE 0 9 2 0 0 0 11 SSE 3 1 9 6 2 0 21 S 3 16 19 0 0 0 38 SSW 8 22 7 0 0 0 37 SW 6 10 8 1 0 0 25 WSW 6 15 0 0 0 0 21 W 6 39 2 0 0 0 47 WNW 10 22 0 0 0 0 32 NW 1 6 0 0 0 0 7 NNW 2 1 0 0 0 0 3 variable 0 0 0 0 0 0 0 Total 52 155 64 12 2 285 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: 246 F-5 Page 103 of 181

Zion Nuclear Station Period of Record: January - March 2013 Stability Class - Moderately Stable - 25OFt-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Sp(eed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 N 0 0 0 0 0 0 0 NNE 1 3 0 0 4 0 0 NE 0 1 0 0 1 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 2 0 0 2 0 0 SE 0 0 0 0 0 SSE 0 0 2 0 0 0 2 S 1 4 7 0 0 0 12 SSW 2 2 1 0 0 0 5 SW 1 5 0 0 0 0 6 WSW 4 8 0 0 0 0 12 W 6 16 0 0 0 0 22 WNW 6 9 0 0 0 0 15 NW 2 0 0 0 0 0 2 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 23 50 10 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: 246 F-6 Page 104 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 2 S 5 SSW 1 SW 4 WSW 0 11 W 18 2 0 0 0 0 20 WNW 2 2 0 0 0 0 4 NW 2 0 0 0 0 0 2 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 Total 31 15 5 0 0 51 Hours of calm in this stability class: 3 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 246 F-7 Page 105 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 0 0 1 N 0 1 0 0 0 0 1 NNE 0 1 0 0 NE 0 0 2 0 2 1 5 ENE 0 1 0 0 1 0 2 E 0 0 0 0 0 0 0 ESE 0 1 1 1 0 0 3 SE 0 3 5 1 0 0 9 SSE 0 0 6 3 0 0 9 S 0 1 1 0 0 0 2 SSW 0 1 4 0 1 2 8 SW 0 0 2 1 3 0 6 WSW 0 0 1 16 7 4 28 W 0 2 3 17 6 6 34 WNW 0 5 5 11 9 1 31 NW 0 1 9 20 5 0 35 NNW 0 1 1 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 18 40 70 34 14 176 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 cl asses: 246 F-8 Page 106 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 3 4 NNE 0 2 0 1 3 NE 0 1 1 1 3 ENE 0 1 0 0 1 E 0 0 0 0 ESE 0 0 1 0 1 SE 0 0 1 0 2 SSE 0 0 2 0 2 S 0 0 1 0 2 SSW 0 1 1 6 SW 0 1 1 3 WSW 0 0 1 4 3 2 10 W 0 1 1 4 2 3 11 WNW 0 0 7 2 1 0 10 NW 0 1 8 10 1 0 20 NNW 0 0 5 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 9 29 25 10 11 84 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 9 Hours of missing stability measurements in all stability classes: 246 F-9 Page 107 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 2 4 2 8 NNE 0 1 2 6 NE 0 2 0 0 2 ENE 0 0 0 0 3 E 0 0. 0 ESE 0 2 0 0 3 SE 0 1 0 0 1 SSE 0 2 0 0 4 S 0 3 2 0 5 SSW 0 3 2 8 SW 0 2 2 2 8 WSW 0 2 5 7 4 22 W 0 1 1 8 2 5 17 WNW 0 2 6 9 5 1 23 NW 0 1 9 5 3 0 18 NNW 0 2 6 2 0 0 10 Variable 0 0 0 0 0 0 0 Total 13 42 40 27 17 139 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 9 Hours of missing stability measurements in all stability classes: 246 F-10 Page 108 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 4 4 11 26 5 51 NNE 0 2 2 5 7 15 31 NE 2 1 4 2 1 7 17 ENE 0 3 0 4 4 7 18 E 0 4 5 6 8 6 29 ESE 0 2 1 2 3 4 12 SE 1 2 2 6 8 1 20 SSE 0 1 4 21 26 8 60 S 0 1 8 31 21 0 61 SSW 0 4 8 20 9 0 41 SW 0 6 6 40 15 10 77 WSW 3 2 13 43 17 12 90 W 3 6 29 80 16 16 150 WNW 1 4 42 61 19 5 132 NW 0 3 46 60 12 1 122 NNW 0 1 33 60 11 0 105 Variable 0 0 0 0 0 0 0 Total 11 46 207 452 203 97 1016 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 55 Hours of missing stability measurements in all stability classes: 246 F-I I Page 109 of 181

Zion Nuclear Station Period of Record: January - March 2013 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 2 7 NNE 0 1 0 8 NE 0 1 0 6 ENE 1 2 3 13 E 1 3 1 10 ESE 0 2 0 3 SE 0 1 6 12 SSE 0 4 5 21 S 0 4 15 31 SSW 0 4 19 30 SW 0 9 13 27 WSW 0 3 6 10 W 0 9 15 25 WNW 0 8 20 34 NW 0 10 16 29 NNW 0 1 1 3 variable 0 0 0 0 Total 2 33 63 122 42 7 2269 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 16 Hours of missing stability measurements in all stability classes: 246 F-12 Page 110 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 1 NNE 2 NE 0 ENE 3 E 2 ESE 5 SE 3 SSE 2 S 11 SSW 8 SW 7 WSW 2 W 6 WNW 8 NW 11 NNW 3 Variable 0 Total 5 17 15 24 12 1 74 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 9 Hours of missing stability measurements in all stability classes: 246 F-13 Page I11 of 181

Zion Nuclear Station Period of Record: January - March 2013 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 0 0 0 0 0 1 NNE 0 0 0 0 0 0 0 NE 1 2 0 0 0 0 3 ENE 0 0 1 0 1 0 2 E 1 1 0 0 0 0 2 ESE 2 1 0 0 0 0 3 SE 2 2 2 0 0 0 6 SSE 0 0 0 0 0 0 S 0 2 3 2 2 1 10 SSW 2 1 1 3 1 0 8 SW 0 0 1 0 0 0 1 WSW 2 0 0 0 0 0 2 W 0 1 2 0 0 0 3 WNW 0 2 2 0 0 0 4 NW 0 3 1 2 0 0 6 NNW 1 0 0 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 12 15 13 7 4 1 52 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: 246 F-14 Page 112 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 1 2 5 3 0 11 NNE 0 0 36 11 1 0 48 NE 0 4 13 0 0 0 17 ENE 0 8 4 0 0 0 12 E 0 5 4 4 0 0 13 ESE 0 1 6 0 0 0 7 SE 0 1 9 1 0 0 11 SSE 0 1 2 0 0 0 3 S 0 0 1 1 0 0 2 SSW 0 0 5 4 0 0 9 SW 0 0 5 13 0 0 18 WSW 0 0 7 4 0 0 11 W 0 0 14 2 0 0 16 WNW 0 6 24 0 0 0 30 NW 0 1 18 2 0 0 21 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 28 151 47 4 0 230 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-15 Page 113 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 6 8 0 0 14 NNE 0 5 7 4 0 0 16 NE 0 3 0 0 0 0 3 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 4 3 0 0 0 7 SE 0 2 2 0 0 0 4 SSE 0 2 1 0 0 0 3 S 0 0 0 0 0 0 0 SSW 0 0 1 0 0 0 1 SW 0 0 6 3 0 0 9 WSW 0 0 1 0 1 0 2 W 0 0 3 2 0 0 5 WNW 0 3 4 1 0 0 8 NW 0 1 3 2 0 0 6 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 20 38 20 0 79 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-16 Page 114 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 10 1 23 NNE 7 0 24 NE 0 0 8 ENE 0 0 3 E 0 0 9 ESE 2 0 3 SE 0 0 7 SSE 0 0 5 S 0 0 0 SSW 1 0 4 SW 3 0 9 WSW 5 0 12 W 3 0 6 WNW 0 0 5 NW 0 0 4 NNW 1 0 4 Variable 0 0 0 Total 4 40 49 32 1 0 126 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-17 Page 115 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 3 25 90 39 9 0 166 NNE 7 34 60 39 1 0 141 NE 10 21 16 3 0 0 50 ENE 7 17 9 8 2 0 43 E 4 12 6 1 0 0 23 ESE 4 16 4 0 0 0 24 SE 2 16 8 0 0 0 26 SSE 0 12 23 3 1 0 39 S 1 8 24 1 0 0 34 SSW 0 11 20 13 1 0 45 SW 0 11 16 5 3 0 35 WSW 2 11 27 13 0 0 53 W 3 8 19 3 0 0 33 WNW 2 12 13 1 0 0 28 NW 2 14 13 0 0 0 29 NNW 0 12 9 0 0 0 21 Variable 0 0 0 0 0 0 0 Total 47 240 357 129 17 0 790 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-18 Page 116 of 181

Zion Nuclear Station Period of Record: April - June 2013 Stability Class - Slightly Stable 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Sp eed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 26 10 0 0 0 39 NNE 11 24 8 1 0 0 44 NE 9 15 4 0 0 0 28 ENE 14 7 1 1 0 0 23 E 4 15 7 2 1 0 29 ESE 4 7 0 0 0 0 11 SE 6 12 1 0 0 0 19 SSE 3 16 28 6 2 0 55 S 7 46 26 7 0 0 86 SSW 11 24 13 1 0 0 49 SW 6 16 7 3 0 0 32 WSW 3 10 0 0 0 0 13 W 1 10 2 0 0 0 13 WNW 7 10 2 0 0 0 19 NW 4 6 0 0 0 0 10 NNW 2 7 2 0 0 0 11 Variable 1 0 0 0 0 0 1 Total 96 251 III 21 3 0 482 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-19 Page 117 of 181

Zion Nuclear Station Period of Record: April - June 2013 Stability Class - Moderately Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet wind Speeed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 9 7 0 0 0 19 NNE 10 7 1 0 0 0 18 NE 6 5 0 0 0 0 11 ENE 8 5 1 0 0 0 14 E 4 6 3 0 0 0 13 ESE 4 6 0 0 0 0 10 SE 4 16 0 0 0 0 20 SSE 2 7 9 2 2 0 22 S 8 29 23 9 0 0 69 SSW 11 16 2 0 0 0 29 SW 10 4 0 1 0 .0 15 WSW 11 0 0 0 0 0 11 W 8 1 0 0 0 0 9 WNW 3 2 0 0 0 0 5 NW 9 3 0 0 0 0 12 NNW 4 3 0 0 0 0 7 Variable 1 0 0 0 0 0 1 Total 106 119 46 12 2 0 285 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-20 Page 118 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 0 N 2 2 1 0 0 0 0 NNE 5 6 0 0 0 0 0 NE 4 4 2 0 0 0 0 ENE 2 4 0 0 E 5 4 0 1 10 0 0 ESE 3 8 1 0 12 0 0 SE 3 7 3 0 13 0 0 SSE 2 5 9 1 17 0 0 S 4 18 21 5 48 0 0 SSW 12 6 0 0 18 0 0 SW 4 2 0 0 6 0 0 WSW 9 0 0 0 9 0 0 W 2 10 0 0 12 0 0 WNW 12 5 0 0 17 0 0 NW 3 1 0 0 4 0 0 NNW 5 1 0 0 6 0 0 Variable 0 0 0 0 0 Total 77 70 234 7 0 0 188 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: 3 F-21 Page 119 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 2 6 7 7 22 NNE 0 0 16 18 4 2 40 NE 0 5 14 3 0 0 22 ENE 0 3 2 1 0 7 E 0 1 4 0 4 0 9 ESE 0 1 3 3 0 0 7 SE 0 1 5 6 3 0 15 SSE 0 0 0 0 0 0 0 S 0 0 0 0 1 1 2 SSW 0 0 0 6 4 0 10 SW 0 0 0 6 10 0 16 WSW 0 0 2 6 2 2 12 W 0 0 2 11 2 0 15 WNW 0 0 7 23 1 32 NW 0 0 2 14 4 0 20 NNW 1 0 Variable 0 0 0 0 0 0 0 Total 11 59 104 43 13 230 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-22 Page 120 of 181

Zion Nuclear Station Period of Record: April June 2013 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 5 17 NNE 1 6 0 14 NE 0 2 0 2 ENE 0 0 0 0 E 0 0 ESE 0 5 0 5 SE 1 6 0 8 SSE 0 0 0 0 S 0 0 0 0 SSW 0 0 0 1 SW 0 0 WSW 0 0 0 2 W 0 0 1 6 WNW 0 2 0 8 NW 0 2 1 1 6 NNW 0 0 0 0 Variable 0 0 0 0 0 Total 0 2 26 25 19 7 79 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-23 Page 121 of 181

Zion Nuclear Station Period of Record: April - June 2013 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph) wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 3 4 13 8 30 NNE 0 4 11 4 0 21 NE 0 0 3 ENE 1 0 4 E 0 0 4 ESE 0 7 SE 0 9 SSE 0 3 S 0 0 SSW 0 4 SW 0 8 WSW 2 12 W 2 7 WNW 0 4 NW 0 6 NNW 0 4 Variable 0 0 Total 1 18 32 31 32 12 12r Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-24 Page 122 of 181

Zion Nuclear Station Period of Record: April - June 2013 Stability Class - Neutral - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0. 4 14 55 61 39 173 NNE 1 13 20 38 29 12 113 NE 0 6 16 17 10 1 50 ENE 2 10 22 8 9 3 54 E 0 11 12 3 1 0 27 ESE 0 8 7 5 2 0 22 SE 0 8 16 20 0 2 46 SSE 0 2 10 22 2 1 37 S 0 1 5 9 4 0 19 SSW 0 2 4 17 15 3 41 SW 0 3 9 19 4 2 37 WSW 0 2 5 21 10 11 49 W 0 2 6 18 9 0 35 WNW 0 3 8 16 4 0 31 NW 0 2 4 25 1 0 32 NNW 0 5 9 10 0 0 24 Variable 0 0 0 0 0 0 0 Total 82 167 303 161 74 790 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-25 Page 123 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 4 13 7 3 1 28 NNE 3 16 15 3 0 37 NE 2 12 5 0 1 21 ENE 3 8 6 1 2 22 E 7 7 6 6 6 33 ESE 5 16 6 1 0 30 SE 11 11 12 4 0 40 SSE 8 15 26 3 10 63 S 10 14 29 10 3 66 SSW 4 10 14 9 0 37 SW 1 12 18 4 1 36 WSW 3 5 7 0 1 16 W 2 1 7 1 0 11 WNW 1 1 9 3 0 14 NW 2 4 4 0 0 10 NNW 4 6 8 0 0 18 Variable 0 0 0 0 0 0 Total 9 70 151 179 48 25 482 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-26 Page 124 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 1 3 6 3 0 0 13 NNE 0 1 9 5 0 0 15 NE 2 3 9 1 0 0 15 ENE 0 1 7 0 0 1 9 E 1 5 3 1 3 1 14 ESE 0 5 6 5 2 0 18 SE 0 4 5 5 1 1 16 SSE 0 8 12 8 7 40 S 0 8 16 21 11 01 57 SSW 3 2 14 21 5 0 45 SW 0 5 6 3 1 0 15 WSW 0 2 3 2 0 0 7 W 2 3 3 0 0 0 8 WNW 0 2 1 0 1 0 4 NW 0 2 2 0 0 0 4 NNW 1 3 0 1 0 0 5 Variable 0 0 0 0 0 0 0 Total 10 57 102 76 31 9 285 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-27 Page 125 of 181

Zion Nuclear Station Period of Record: April - June 2013 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 8 0 0 0 8 NNE 2 3 0 0 0 0 5 NE 0 2 2 0 0 0 4 ENE 0 0 0 0 0 0 E 1 2 2 1 0 1 7 ESE 1 3 0 4 2 3 13 SE 0 1 0 5 5 12 SSE 0 1 12 5 4 2 24 S 0 3 7 10 19 2 41 SSW 1 1 12 10 3 0 27 SW 1 1 6 7 0 0 15 WSW 0 1 2 1 0 0 4 W 2 1 6 0 0 0 9 WNW 1 1 2 1 0 0 5 NW 1 2 2 2 0 0 7 NNW 1 2 3 2 0 0 8 Variable 0 0 0 0 0 0 0 Total 11 24 65 43 33 13 189 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-28 Page 126 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 9 10 19 NNE 0 7 34 4 45 NE 0 50 16 0 66 ENE 39 13 0 52 E 37 7 1 45 ESE 30 2 0 32 SE 26 4 0 30 SSE 4 19 0 23 S 1 4 2 7 SSW 1 1 0 2 SW 6 20 6 32 WSW 20 3 34 W 15 7 0 22 WNW 6 5 0 11 NW 0 16 0 16 NNW 3 5 0 8 Variable 0 0 0 0 Total 0 236 122 26 0 0 444 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-29 Page 127 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 5 NNE 0 15 NE 0 5 ENE 0 13 E 0 7 ESE 0 2 SE 0 2 SSE 0 11 S 0 4 SSW 0 1 SW 0 12 WSW 0 7 W 0 8 WNW 0 6 NW 0 6 NNW 0 3 Variable 0 0 Total 1 53 45 8q 0 107 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-30 Page 128 of 181

Zion Nuclear Station Period of Record: July - September 2013 Stability Class - Slightly Unstable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet wind Spe_ed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 10 5 0 0 0 15 NNE 6 6 0 0 0 13 NE 0 9 1 0 0 0 11 ENE 00 5 5 0 0 0 10 E 0 6 0 0 0 0 6 ESE 0 6 0 0 0 0 7 SE 7 1 0 0 0 9 SSE 0 5 26 2 0 0 33 S 0 4 4 0 0 0 8 SSW 0 0 0 0 0 0 0 SW 0 3 2 1 0 0 6 0

WSW 2 7 2 0 0 11 1

W 5 0 0 0 0 6 1

WNW 8 0 0 0 0 9 1

NW 2 2 0 0 0 5 NNW 0 2 2 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 7 80 61 5 0 0 153 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-31 Page 129 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 23 11 4 43 NNE 23 28 4 61 NE 22 17 2 46 ENE 15 6 0 26 E 19 12 0 37 ESE 23 3 0 33 SE 24 5 0 32 SSE 26 48 13 89 S 38 13 0 54 SSW 35 12 0 48 SW 29 36 2 70 WSW 22 23 1 49 W 27 4 0 31 WNW 6 0 1 9 NW 13 4 0 19 NNW 7 11 0 21 Variable 0 0 0 0 Total 56 352 233 27 0 668 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:

F-32 Page 130 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 23 20 0 47 NNE 13 11 0 26 NE 2 5 0 7 ENE 0 8 0 8 E 4 5 1 10 ESE 1 3 0 4 SE 3 17 0 21 SSE 4 9 0 23 S 7 37 0 47 SSW 15 45 0 62 SW 13 34 0 62 WSW 8 25 0 44 W 13 22 0 35 WNW 6 20 0 26 NW 11 21 0 33 NNW 7 19 0 26 Variable 0 0 0 0 Total 130 301 0 481 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-33 Page 131 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 6 10 NNE 0 0 0 NE 0 0 0 ENE 2 0 2 E 1 0 1 ESE 3 0 3 SE 0 0 1 SSE 1 3 5 S 6 4 12 SSW 16 13 29 SW 19 16 35 WSW 17 8 26 W 18 12 30 WNW 12 10 22 NW 17 21 38 NNW 3 9 12 Variable 0 0 0 Total 119 102 5 0 226 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-34 Page 132 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 NNE 0 0 0 NE 0 0 0 ENE 0 0 0 E 0 0 0 ESE 0 0 0 SE 1 0 1 SSE 0 1 1 S 4 3 7 SSW 5 1 6 SW 2 2 4 WSW 14 8 22 W 26 20 46 WNW 25 11 36 NW 2 2 4 NNW 1 1 2 Variable 0 0 0 Total 20 49 0 129 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-35 Page 133 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 11 20 NNE 8 22 24 59 NE 14 45 3 63 ENE 21 23 5 50 E 18 20 0 38 ESE 9 16 0 25 SE 4 34 10 48 SSE 0 7 3 10 S 0 2 1 6 SSW 0 0 0 0 SW 0 7 15 24 WSW 1 14 15 38 W 2 15 7 26 WNW 0 7 6 13 NW 0 3 13 17 NNW 2 1 4 7 Variable 0 0 0 0 Total 0 79 216 117 30 2 444 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-36 Page 134 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 2 2 1 0 5 NNE 0 3 7 4 3 0 17 NE 0 3 1 0 0 0 4 ENE 0 4 5 3 1 0 13 E 0 3 0 3 0 0 6 ESE 0 0 2 0 0 0 2 SE 0 3 0 0 0 0 3 SSE 0 0 3 5 1 0 9 S 0 0 1 2 1 0 4 SSW 0 0 1 1 0 0 2 SW 0 0 4 6 1 0 11 WSW 0 0 2 2 2 2 8 W 0 1 4 1 1 0 7 WNW 0 2 3 1 0 0 6 NW 0 0 2 6 0 0 8 NNW 0 0 2 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 19 39 36 11 2 107 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-37 Page 135 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 1 0 16 NNE 4 0 0 16 NE 2 0 0 8 ENE 2 2 0 9 E 2 0 0 5 ESE 2 0 0 7 SE 5 1 0 13 SSE 18 1 0 29 S 6 1 0 9 SSW 0 0 0 0 SW 1 1 0 4 WSW 1 2 1 12 W 4 0 0 8 WNW 5 0 0 8 NW 0 0 0 4 NNW 2 0 0 5 Variable 0 0 0 0 Total 1 37 62 43 9 1 153 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-38 Page 136 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 3 8 13 6 32 NNE 6 16 24 13 61 NE 9 16 15 6 49 ENE 6 13 10 1 31 E 11 11 10 0 35 ESE 16 12 7 0 36 SE 14 9 16 2 42 SSE 7 31 32 12 82 S 5 28 31 0 65 SSW 1 9 7 3 20 SW 3 18 41 5 67 WSW 6 11 30 7 54 W 1 19 20 1 41 WNW 3 5 4 0 12 NW 1 7 3 1 13 NNW 2 5 20 0 28 Variable 0 0 0 0 0 Total 9 94 218 283 57 7 668 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-39 Page 137 of 181

Zion Nuclear Station Period of Record: July - September 2013 Stability Class - Slightly Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 250 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 5 18 0 0 27 NNE 1 8 18 9 0 0 36 NE 1 10 12 3 0 0 26 ENE 0 9 3 6 0 0 18 E 2 5 5 2 1 1 16 ESE 0 3 1 2 4 0 10 SE 0 5 9 8 0 0 22 SSE 2 2 14 10 0 0 28 S 0 5 23 21 2 0 51 SSW 1 4 16 15 0 0 36 SW 2 3 12 44 5 0 66 WSW 0 3 9 27 7 0 46 W 0 2 8 16 0 0 26 WNW 0 2 13 10 0 0 25 NW 0 1 7 20 0 0 28 NNW 0 1 7 12 0 0 20 Variable 0 0 0 0 0 0 0 Total 9 67 162 223 19 1 481 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-40 Page 138 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 3 13 22 NNE 11 1 20 NE 2 0 6 ENE 2 0 8 E 1 0 8 ESE 4 0 7 SE 2 0 8 SSE 4 3 10 S 10 5 16 SSW 16 10 28 SW 14 12 29 WSW 6 8 18 W 3 4 10 WNW 1 6 9 NW 2 5 9 NNW 4 12 18 Variable 0 0 0 Total 10 50 85 79 0 226 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-41 Page 139 of 181

Zion Nuclear Station Period of Record: July - September 2013 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 6 NNE 7 NE 3 ENE 3 E 8 ESE 13 SE 7 SSE 6 S 3 SSW 16 SW 13 WSW 17 W 14 WNW 4 NW 5 NNW 3 Variable 0 Total 15 54 32 27 0 0 128 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stab:ility class: 0 Hours of missing stability measurements in all stability classes: 0 F-42 Page 140 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 NNE 0 1 0 0 0 1 NE 0 3 0 0 0 4 ENE 0 0 0 0 1 E 0 0 0 0 0 1 ESE 0 3 0 0 0 3 SE 0 6 0 0 6 SSE 0 0 0 0 1 S 0 0 0 0 0 0 SSW 0 0 0 0 0 0 SW 0 0 8 0 0 17 WSW 0 4 18 8 0 0 30 W 0 2 16 7 0 0 25 WNW 0 2 15 2 0 0 19 NW 0 0 16 0 0 0 16 NNW 0 0 0 3 0 0 3 Variable 0 0 0 0 0 0 0 Total 23 76 2A 0 0 127 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-43 Page 141 of 181

Zion Nuclear Station Period of Record: October - December 2013 Stability Class - Moderately Unstable - 25OFt-33Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 NNE 0 1 2 NE 0 1 1 ENE 0 0 0 E 0 1 2 ESE 0 2 2 SE 0 3 3 SSE 0 1 2 S 0 1 1 SSW 0 0 1 SW 0 1 0 17 WSW 0 3 10 0 0 0 13 W 0 5 10 2 0 0 17 WNW 0 2 7 1 0 0 10 NW 0 0 6 1 0 0 7 NNW 0 0 0 2 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 22 48 13 0 0 R83 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-44 Page 142 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 3 3 NNE 3 9 NE 0 1 ENE 0 1 E 0 3 ESE 0 4 SE 0 2 SSE 5 12 S 1 6 SSW 3 4 SW 14 21 WSW 4 15 W 16 29 WNW 9 16 NW 10 16 NNW 1 3 Variable 0 0 Total 3 51 69 18 0 145 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: 3 F-45 Page 143 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 17 12 6 0 37 NNE 12 24 0 0 37 NE 5 5 5 0 15 ENE 4 2 10 0 19 E 3 4 12 0 20 ESE 3 5 7 0 16 SE 20 8 0 0 31 SSE 21 27 21 7 76 S 17 29 8 0 55 SSW 25 34 14 0 80 SW 22 65 48 3 145 WSW 51 61 12 0 127 W 79 98 26 3 213 WNW 48 37 2 0 94 NW 38 40 4 0 87 NNW 25 22 2 0 54 Variable 0 0 0 0 0 Total 53 390 473 177 13 0 1106 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 29 Hours of missing stability measurements in all stability cl asses: 3 F-46 Page 144 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 4 1 5 NNE 5 5 12 NE 2 0 6 ENE 0 0 2 E 0 5 7 ESE 0 2 3 SE 10 1 14 SSE 13 10 34 S 37 21 67 SSW 29 10 42 SW 32 4 48 WSW 35 4 53 W 61 7 72 WNW 37 0 43 NW 28 6 40 NNW 5 4 12 Variable 0 0 0 Total 70 298 80 11 1 0 460 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-47 Page 145 of 181

Zion Nuclear Station Period of Record: October December 2013 Stability Clas 5- Moderately Stable - 250 Ft-33Ft Delta-T (F)

Winds Measured at 35 Fee t Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 N 6 0 0 0 NNE 1 1 1 0 0 NE 1 2 ENE 3 0 0 3 E 0 0 0 0 ESE 2 1 0 3 SE 4 2 0 6 SSE 1 4 3 8 S 10 23 9 43 SSW 18 7 0 25 SW 4 5 0 9 WSW 6 7 0 13 W 12 12 0 24 WNW 6 8 0 14 NW 8 3 0 11 NNW 6 3 0 9 Variable 2 0 0 2 Total 90 76 12 0 0 179 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-48 Page 146 of 181

Zion Nuclear Station Period of Record: October - December 2013 Stability Class - Extremely Stable - 250Ft-33Ft Delta-T (F)

Winds Measured at 35 Feet wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 0 1 NNE 0 0 0 0 NE 0 0 0 0 ENE 1 0 0 1 E 0 0 ESE 0 0 0 0 SE 0 0 0 4 SSE 0 0 0 1 S 0 0 0 3 SSW 1 0 0 1 SW 6 5 0 11 WSW 4 1 0 0 0 0 5 W 11 6 0 0 0 0 17 WNW 11 0 0 0 0 18 NW 5 2 0 0 0 0 7 NNW 2 0 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 42 28 2 0 72 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-49 Page 147 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 0 0 N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 NE 0 3 0 1 0 0 4 ENE 0 2 0 0 0 0 2 E 0 0 1 0 0 0 1 ESE 0 0 0 0 0 0 0 SE 0 4 5 0 0 0 9 SSE 0 0 1 0 0 0 1 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 3 5 6 1 15 WSW 0 0 10 8 5 0 23 W 0 0 4 11 8 6 29 WNW 0 0 4 12 0 3 19 NW 0 0 1 16 1 0 18 NNW 0 0 0 0 3 0 3 Variable 0 0 0 0 0 0 0 Total 0 9 29 53 23 10 124 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 3 F-50 Page 148 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 3 1 0 0 4 NNE 0 0 0 0 0 1 NE 0 0 0 0 0 ENE 0 0 0 0 0 E 0 1 0 0 0 2 ESE 0 2 1 0 0 0 3 SE 0 2 0 0 0 3 SSE 0 0 0 0 S 0 1 0 0 0 0 SSW 0 0 0 1 0 0 1 SW 0 1 2 7 6 0 16 WSW 0 0 3 5 1 0 9 W 0 0 5 9 4 1 19 WNW 0 0 2 6 0 1 9 NW 0 0 2 5 1 0 8 NNW 0 0 0 0 2 0 2 Variable 0 0 0 0 0 0 0 Total 0 7 21 36 14 2 20 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 3 F-51 Page 149 of 181

Zion Nuclear Station Period of Record: October December 2013 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 4 2 0 0 6 NNE 0 3 1 2 0 0 6 NE 0 0 0 1 0 0 1 ENE 1 0 0 0 0 0 1 E 0 1 0 0 0 0 1 ESE 0 2 1 0 3 0 6 SE 0 1 1 1 0 0 3 SSE 0 1 6 3 1 3 14 S 0 1 1 1 0 0 3 SSW 0 0 3 0 0 0 3 SW 0 2 6 9 2 0 19 WSW 0 0 2 6 6 0 14 W 0 1 11 11 4 2 29 WNW 0 1 6 10 1 2 20 NW 0 0 7 7 2 0 16 NNW 0 0 0 1 1 0 2 Variable 0 0 0 0 0 0 0 Total 13 49 54 20 7 144 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 5 Hours of missing stability measurements in all stability classes: 3 F-52 Page 150 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 13 9 6 2 31 NNE 9 22 14 0 47 NE 1 4 4 4 14 ENE 3 2 11 1 21 E 1 7 10 0 20 ESE 2 8 9 0 21 SE 14 18 10 0 45 SSE 16 14 18 15 64 S 9 15 20 1 47 SSW 28 19 11 5 69 SW 14 50 47 15 134 WSW 27 63 13 7 .113 W 48 90 32 17 198 WNW 28 48 12 0 98 NW 26 49 14 0 95 NNW 13 25 4 1 46 Variable 0 0 0 0 0 Total 9 56 252 443 235 68 1063 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 72 Hours of missing stability measurements in all stability classes: 3 F-53 Page 151 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 0 1 NNE 2 5 10 NE 4 3 10 ENE 0 1 3 E 1 4 7 ESE 3 0 8 SE 2 4 13 SSE 6 17 37 S 9 18 46 SSW 11 25 43 SW 13 26 48 WSW 21 24 49 W 16 45 64 WNW 6 30 38 NW 21 24 47 NNW 17 10 33 Variable 0 0 0 Total 2 33 133 236 44 9 457 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 3 F-54 Page 152 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 2 3 1 0 0 6 NNE 3 4 0 0 7 NE 0 4 2 0 0 0 6 ENE 0 1 0 1 0 0 2 E 0 5 ESE 0 6 1 2 0 10 SE 1 2 4 2 2 0 11 SSE 2 9 10 3 0 24 S 1 8 14 12 5 1 41 SSW 0 1 5 6 1 0 13 SW 0 1 4 3 0 0 8 WSW 0 0 2 2 2 0 6 W 0 4 7 0 0 12 WNW 1 7 9 0 0 17 NW 0 2 2 3 0 0 7 NNW 0 0 1 3 0 0 4 Variable 0 0 0 0 0 0 0 Total 3 30 70 60 15 1 179 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-55 Page 153 of 181

Zion Nuclear Station Period of Record: October - December 2013 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 7 1 0 0 8 NNE 0 2 3 1 0 0 6 NE 0 0 0 0 0 0 0 ENE 0 2 0 0 0 0 2 E 0 1 2 0 0 0 3 ESE 0 0 3 0 1 3 7 SE 0 0 5 0 0 0 5 SSE 0 2 2 0 0 0 4 S 0 1 4 0 2 0 7 SSW 0 1 0 1 0 0 2 SW 0 0 0 3 2 0 5 WSW 0 2 1 0 0 0 3 W 0 1 2 1 0 0 4 WNW 0 1 0 4 0 0 5 NW 2 1 1 3 0 0 7 NNW 0 3 1 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 2 17 31 14 5 3 72 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-56 Page 154 of 181

APPENDIX G ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

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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 2013 Prepared By Teledyne Brown Engineering Environmental Services ZIONSOLUTIONSY.

Zion Nuclear Power Station Zion, IL 60099 May 2014 Page 156 of 181

Table Of Contents I. Sum m ary and Conclusions .............................................................................................. J II. Introduction ............................................................................................................. 3 A. Objectives of the RG PP .................................................................................. 3 B. Im plem entation of the O bjectives .................................................................. 3 C. Program Description ...................................................................................... 4 D. Characteristics of Tritium (H-3) ...................................................................... 4 I1l. Program Description ................................................................................................ 5 A. Sam ple Analysis ............................................................................................ 5 B. Data Interpretation .......................................................................................... 6 C. Background Analysis ..................................................................................... 7

1. Background Concentrations of Tritium ................................................. 8 A. G roundwater 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 Page 157 of 181

Appendices Appendix A Location and Direction Tables Table A-1 Radiological Groundwater Protection Program - Sampling Locations and Distance, Zion Nuclear Power Station, 2013 Fi-gures Figure A-1 Radiological Groundwater Protection Program Groundwater and Surface Water Locations of the Zion Nuclear Power Station, 2013 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, ,2013.

Table B-1.2 Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table B-1.3 Concentrations of Iron-55 and Nickel-63 in Groundwater Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table B-11.1 Concentrations of Tritium, Strontium, Gross Alpha and Gross Beta in Surface Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table B-11.2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

Table B-11.3 Concentrations of Iron-55 and Nickel-63 in Surface Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2013.

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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 eighth 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 2013.

During that time period, 435 analyses were performed on 51 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.

Naturally occurring K-40 was detected in two groundwater samples. No other 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 2013.

Tritium was not detected in any of the groundwater or surface water samples analyzed in 2013. In the case of tritium, ZionSolutions specified that its 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 2013. Gross Alpha (dissolved) was detected in two of 44 groundwater locations.

The concentration ranged from 0.7 to 1.1 pCi/L. Gross Alpha (suspended) was Page 159 of 181

not detected in any of the groundwater locations. Gross Beta (dissolved) was detected at all thirty-six groundwater locations. The concentrations ranged from 2.9 to 17.2 pCi/L. Gross Beta (suspended) was not detected in any of the groundwater locations.

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on surface water samples during all four quarters of sampling in 2013. Gross Alpha (dissolved) and Gross Alpha (suspended) was not detected in any of the surface water locations. Gross Beta (dissolved) was detected at one surface water locations. The concentrations ranged from 3.1 to 3.5 pCi/L.

Gross Beta (suspended) was not detected in any of the surface water locations.

Dissolved Gross Alpha and Dissolved Gross Beta are detectable in samples from background isotopes. A more detailed discussion on the concentration range and where these isotopes come from is explained later in this section.

Iron-55 and Nickel-63 analyses were performed in 2013 on 48 samples from 11 groundwater and one surface water 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 2013.

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 Page 162 of 181

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 2013.

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 and surface water.

3. Concentrations of tritium in groundwater and surface water.

4. Concentration of gross alpha and gross beta in groundwater and surface water.

5. Concentrations of Iron-55 in groundwater and surface water.

6. Concentrations of Nickel-63 in groundwater and surface water.

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 Page 164 of 181

uncertainty in measurements.

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)

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Lake Forest, Illinois (intake located 16.5 miles south of the Station)

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.

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b. Precipitation Data Precipitation samples are routinely collected at stations 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 Page 167 of 181

cannot be distinguished as different from background at this concentration.

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 2013.

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 2013. Gross Alpha (dissolved) was detected in two of 44 groundwater locations. The concentration ranged from 0.7 to 1.1 pCi/L. Gross Alpha (suspended) was not detected in any of the groundwater locations.

Gross Beta (dissolved) was detected at all thirty-six groundwater locations. The concentrations ranged from 2.9 to 17.2 pCi/L.

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

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on surface water samples during all fourquarters of sampling in 2013. Gross Alpha (dissolved) and Gross Alpha (suspended) was not detected in any of the surface water locations. Gross Beta (dissolved) was detected at one surface water locations. The concentrations Page 168 of 181

ranged from 3.1 to 3.5 pCi/L. Gross Beta (suspended) was not detected in any of the surface water 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 Naturally occurring K-40 was detected in two of 47 samples analyzed. The concentration ranged from 77 to 83 pCi/L. All other 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).

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.

-11 -

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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 Page 171 of 181

TABLE A-i: Sampling Locations and Distance for the Radiological Groundwater Protection Program, Zion Station, 2013.

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-IOS Monitoring Well Permanent On-Site MW-ZN-11S Monitoring Well Permanent On-Site SW-ZN-01 Surface Water Lake Michigan On-Site A-] Page 172 of 181

N S

Surface Water end Groundwater Sample Locations 0 Surface Water Sample Location

WoaLocation Figure A-1 Radiological Ground Water Protection Program Groundwater and Surface Water Locations of the Zion Station, 2013 A-2 Page 173 of 181

APPENDIX B DATA TABLES Page 174 of 181

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, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-1B (Dis) Gr-B (Sus)

I MW-ZN-01S 03/i11/13

188

0.8 *<1.0 < 0.7 9.6 +/- 1.3 <1.6 MW-ZN-01S 05/20/13

174 <0.6 < 1.0 < 0.8 7.3 +/- 1.2

1.5 MW-ZN-01S 09/10/13

196

0.8 < 1.6 < 0.7 9.1 +/- 1.3

1.5 MW-ZN-01 S 10/08/13

182

0.7 < 0.8 < 1.1 8.8 +/- 1.2

1.6 MW-ZN-02S 03/i12/13

188

0.7 < 0.9 < 0.7 17.2 +/- 1.4

1.6 MW-ZN-02S 05/20/i13

174

0.6 1.1 +/-0.7 < 0.7 14.8 +/- 1.4

1.6 MW-ZN-02S 09/10/13

192

0.8 < 1.2 < 0.7 14.9 +/- 1.3

1.5 MW-ZN-02S 10/08/13

197

0.6 < 0.6 < 1.1 13.7 +/- 1.2

1.6 MW-ZN-03S 03/12/13

183

0.8 < 1.0 < 0.7 7.8 +/- 1.2

1.6 MW-ZN-03S 05/20/i13

177

0.6

1.1 < 0.7 8.0 +/- 1.3

1.6 MW-ZN-03S 09/11/13

196

i.0 < 1.8 < 0.7 9.2 +/- 1.3

1.5 MW-ZN-03S 10/08/13

i70

0.7 < 1.0 < 1.1 9.5 +/- 1.3

1.6 MW-ZN-04S 03/i12/13

186

0.6 < 1.1 < 0.7 11.2 +/- 1.3

1.6 MW-ZN-04S 05/20/13

175

0.7 < 1.1 < 0.7 8.0 +/- 1.3

1.6 MW-ZN-04S 09/i11/13

192

0.9 *<1.9 < 0.7 11.5 +/- 1.4

1.5 MW-ZN-04S 09/16/13

197 MW-ZN-04S 10/08/13

166

0.5

0.9

0.4 10.4 +/- 1.3

1.5 MW-ZN-05S 03/14/13

187

0.7

1.0

0.7 4.2 +/- 1.0

1.6 MW-ZN-05S 05/22/i13

178

0.7 < 1.1

0.7 2.9 +/- 1.1

1.6 MW-ZN-05S 09/10/13

195

0.9

1.2

0.8 5.2 +/- 1.2

1.4 MW-ZN-05S 10/07/13

168

0.6

0.8

0.4 5.5 +/- 1.1

1.5 MW-ZN-06S 03/14/13

189

0.6

1.0

0.5 4.9 +/- 1.1

1.7 MW-ZN-06S 05/21/13

175

0.5 < 1.i

0.7 4.1 +/-1.2

1.6 MW-ZN-06S 09/09/i13

196

0.9 < 1.1

0.8 6.5 +/-1.3

1.4 MW-ZN-06S 10/07/13

170

0.5 < 0.8

0.4 4.7 +/-1.1

1.5 MW-ZN-07S 03/14/13

189

0.6 < i.1

0.6 3.5 +/-1.1

1.8 MW-ZN-07S 05/21/13

177

0.7

1.3

0.7 < 3.4

1.6 MW-ZN-07S 09/09/i13

i93

0.8

1.9

0.8 5.9 +/-1.3

1.4 MW-ZN-07S 09/16/13

197 MW-ZN-07S 09/18/13

196 MW-ZN-07S 10/07/i13 < 198 < 0.5 < 0.9

0.4 4.1 +/-1.1

1.8 MW-ZN-08S 03/15/13 *<190 < 0.8 < 1.1

0.5 5.7 +/-1.2

1.7 MW-ZN-08S 05/21/i13 < 175 < 0.6 < 1.0

0.8 3.2 +/-1.1

1.7 MW-ZN-08S 09/09/13 *<195 < 0.8 < 1.1

0.8 6.2 +/-1.2

1.4 MW-ZN-08S 10/07/13 < 168 < 0.7 < 0.7

0.4 3.4 +/- 1.0

1.5 MW-ZN-09S 03/13/13 < 188 < 0.6 < 1.0

0.5 8.4 +/- 1.2

1.7 MW-ZN-09S 05/20/i13 < 184 < 0.6 < 0.8

0.9 7.9 +/- 1.1

1.7 MW-ZN-09S 09/10/13 *<198 < 0.9 < 1.0

0.8 8.6 +/- 1.2

1.4 MW-ZN-09S 10/09/13 < 171 < 0.6 < 1.0 < 1.1 10.1 +/- 1.2

1.7 MW-ZN-i1OS 03/12/13 < 188 < 0.8 < 1.0

0.6 11.7 +/- 1.4

1.8 MW-ZN-i10S 05/20/13 < 182 < 0.7 < 1.0

0.8 8.4 +/- 1.2

1.7 MW-ZN-i10S 09/i10/13 < 193 < 0.7 < 1.3

0.4 9.0 +/- 1.3

1.5 MW-ZN-i10S 10/08/13 < 170 < 0.6 < 1.1 < 1.1 10.3 +/- 1.3

1.7 MW-ZN-i1iS 03/14/13 < 185 < 0.8 < 1.0

0.7 8.5 +/- 1.3

1.8 MW-ZN-i1iS 05/21/13 Original

180 < 0.6 0.7 +/-0.5

0.6 6.8 +/- 1.2

1.4 MW-ZN-i1iS 05/21/13 Recount < 2.0 MW-ZN-i1iS 09/09/i13 < 195 < 0.9 < 1.6

0.4 8.8 +/- 1.3 < 1.5 MW-ZN-i1iS 10/07/13 < 167 < 0.6 < 1.0 < 1.1 8.2 +/- 1.2 < 1.7 B-1 B-I Page 175 of 181

TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2013 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-01S 03/11/13 < 55 < 64 < 6 < 6 < 13 < 6 < 12 < 6 < 10 < 5 < 6 < 43 < 14 MW-ZN-01S 05/20/13 < 31 < 52 < 3 < 4 < 7 < 3 < 7 < 4 < 6 < 3 < 4 < 27 < 9 MW-ZN-01S 09/10/13 < 53 < 54 < 5 < 8 < 20 < 6 < 10 < 7 < 14 < 5 < 5 < 138 < 39 MW-ZN-01S 10/08/13 < 62 < 104 < 6 < 7 < 16 < 4 < 10 < 8 < 12 < 5 < 6 < 114 < 47 MW-ZN-02S 03/12/13 < 41 < 38 < 4 <4 < 9 < 4 < 7 < 5 < 7 < 4 < 4 < 34 < 8 MW-ZN-02S 05/20/13 < 39 < 32 < 4 < 5 < 10 < 4 < 7 < 4 < 7 < 4 < 4 < 28 < 8 MW-ZN-02S 09/10/13 < 60 < 117 < 6 <7 < 17 < 6 < 12 < 8 < 13 < 5 < 6 < 131 < 52 MW-ZN-02S 10/08/13 < 68 < 100 < 5 <6 < 18 < 6 < 13 < 6 < 11 < 5 < 6 < 109 < 36 MW-ZN-03S 03/12/13 < 45 83 +/-52 < 5 < 5 < 9 <4 < 9 < 5 < 8 < 5 < 5 < 36 < 10 MW-ZN-03S 05/20/13 < 32 < 72 < 3 <4 < 8 < 4 < 5 < 4 < 7 < 3 < 4 < 27 < 6 MW-ZN-03S 09/11/13 < 57 < 100 < 5 < 6 < 17 < 5 < 9 < 6 < 11 < 4 < 6 < 125 < 42 MW-ZN-03S 10/08/13 < 67 < 55 < 6 < 7 < 16 < 6 < 13 < 7 < 15 < 5 < 6 < 119 < 33 MW-ZN-04S 03/12/13 < 50 < 75 < 4 < 5 < 13 < 4 < 8 < 6 < 9 < 3 < 4 < 119 < 44 MW-ZN-04S 05/20/13 < 46 < 47 < 5 < 6 < 12 < 6 < 13 < 6 < 10 < 5 < 6 < 38 < 13 MW-ZN-04S 09/11/13 < 73 < 46 < 5 <7 < 17 < 5 < 10 < 7 < 14 < 5 < 6 < 132 < 27 MW-ZN-04S 10/08/13 < 66 < 99 < 5 < 7 < 14 < 5 < 12 < 8 < 12 < 5 < 5 < 112 < 40 MW-ZN-05S 03/14/13 < 50 < 52 < 7 < 7 < 15 < 6 < 13 < 7 < 12 < 5 < 6 < 46 < 14 MW-ZN-05S 05/22/13 < 43 < 36 < 4 < 5 < 9 < 4 < 7 < 5 < 7 < 4 < 4 < 29 < 7 MW-ZN-05S 09/10/13 < 56 < 88 < 4 < 5 < 13 < 4 < 10 < 6 < 10 < 4 < 4 < 105 < 33 MW-ZN-05S 10/07/13 < 73 < 104 < 5 < 6 < 16 < 6 < 11 < 8 < 14 < 5 < 6 < 123 < 37 MW-ZN-06S 03/14/13 < 51 < 41 < 5 < 5 < 13 < 4 < 10 < 5 < 10 < 5 < 5 < 36 < 11 MW-ZN-06S 05/21/13 < 38 < 41 < 4 < 4 < 11 < 4 < 8 < 5 < 7 < 4 < 4 < 31 < 9 MW-ZN-06S 09/09/13 < 61 < 74 < 5 < 8 < 16 <6 < 9 < 6 < 14 < 5 < 5 < 131 < 35 MW-ZN-06S 10/07/13 < 55 < 77 < 4 < 6 < 16 < 4 < 10 < 7 < 11 < 4 < 5 < 102 < 30 MW-ZN-07S 03/14/13 < 52 < 43 < 5 < 5 < 11 < 4 < 9 < 5 < 9 < 4 < 5 < 36 < 10 MW-ZN-07S 05/21/13 < 42 < 52 < 5 < 4 < 12 < 5 < 10 < 6 < 9 < 5 < 6 < 40 < 14 MW-ZN-07S 09/09/13 < 58 < 73 < 5 < 6 < 16 < 4 < 9 < 7 < 12 < 4 < 5 < 143 < 49 MW-ZN-07S 10/07/13 < 61 < 101 < 6 < 6 < 18 < 5 < 10 < 7 < 14 < 4 < 6 < 120 < 34 MW-ZN-08S 03/15/13 < 39 77 46 < 3 <4 < 7 < 5 < 10 <4 < 7 < 3 < 4 < 30 < 12 MW-ZN-08S 05/21/13 < 48 < 37 < 5 < 5 < 9 < 4 < 9 < 5 < 9 < 4 < 5 < 33 < 11 MW-ZN-08S 09/09/13 < 50 < 33 < 4 < 6 < 12 < 4 < 7 < 6 < 10 < 4 < 4 < 118 < 51 MW-ZN-08S 10/07/13 < 58 < 92 < 4 < 6 < 17 < 5 < 10 < 5 < 10 < 5 < 4 < 94 < 33 C MW-ZN-09S 03/13/13 < 49 < 113 < 5 < 6 < 9 < 4 < 8 < 3 < 7 < 4 < 5 < 37 < 11 BOLDED VALUES INDICATE LLD COULD NOT BE MET DUE TO AGE OF SAMPLE AT TIME OF RECEIPT AT THE LABORATORY

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2013 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-09S 05/20/13 < 50 < 112 <4 <5 <9 <5 <9 <6 10 <4 <5

40 <13 MW-ZN-09S 09/10/13

61 < 42 <5 <7 < 18 <6 < 12 <8 11 <5 <5 < 149 < 43 MW-ZN-09S i10/9/13 < 57 < 93 <5 <6

14 <4 <9 <6 12 <5 <5 < 106 < 38 MW-ZN-10S 03/12/13 < 61 < 142 <7 <6 < 12 <6 < 12 <8 11 <6 <6 < 51 < 14 MW-ZN- 10S 05/20/13 < 45 < 43 <5 <4 < 10 <4 <9 <6 10 <5 <5 < 33 < 10 MW-ZN-10S 09/10/13 < 60 < 40 <4 <5 <13 <3 <8 <6 11 <4 <5 < 113 < 46 MW-ZN-10S 010/8/13 <54 < 43 <5 <7 < 14 <5 <10 <7 12 <4 <5 < 98 < 31 MW-ZN-i 1S 03/14/1i3 < 42 < 43 <5 <4 <9 <5 <8 <5 8 <4 <5 < 32 <9 MW-ZN-11S 05/21/13 < 48 < 89 <5 <5 <15 <6 <8 <6 9 <5 <5 < 45 <15 MW-ZN-11 S 09/09/i13 < 80 < 61 <6 <7 <19 <7 < 12 <7 13 <6 <5 < 152

60 MW-ZN-i 1S 10/07/13 < 69 < 38 <6 <7 <18 <6 <10 <7 12 <5 <5

132 < 39 Lrc BOLDED VALUES INDICATE LLD COULD NOT BE MET DUE TO AGE OF SAMPLE AT TIME OF RECEIPT AT THE LABORATORY

TABLE B-I.3 CONCENTRATIONS OF IRON-55 AND NICKEL-63 IN GROUNDWATER SAMPLE!

COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Fe-55 Ni-63 DATE MW-ZN-01S 03/11/13 < 167 < 3.6 MW-ZN-01S 05/20/13 < 92 < 3.6 MW-ZN-01S 09/10/13 < 117 < 4.3 MW-ZN-01S 10/08/13 < 128 < 3.8 MW-ZN-02S 03/12/13 < 81 < 3.6 MW-ZN-02S 05/20/13 < 64 < 3.5 MW-ZN-02S 09/10/13 < 199 < 4.2 MW-ZN-02S 10/08/13 < 73 < 3.8 MW-ZN-03S 03/12/13 < 81 < 3.7 MW-ZN-03S 05/20/13 < 96 < 3.6 MW-ZN-03S 09/11/13 < 93 < 4.3 MW-ZN-03S 10/08/13 < 102 < 3.9 MW-ZN-04S 03/12/13 < 81 < 3.7 MW-ZN-04S 05/20/13 < 140 < 3.6 MW-ZN-04S 09/11/13 < 116

4.4 MW-ZN-04S 10/08/13 < 161 < 3.9 MW-ZN-05S 03/14/13 < 139 < 3.5 MW-ZN-05S 05/22/13 < 122 < 3.7 MW-ZN-05S 09/10/13 < 91 < 4.4 MW-ZN-05S 10/07/13 < 88 < 4.0 MW-ZN-06S 03/14/13 < 117 < 3.7 MW-ZN-06S 05/21/13 < 146 < 3.6 MW-ZN-06S 09/09/13 < 149 < 4.4 MW-ZN-06S 10/07/13 < 137 < 4.0 MW-ZN-07S 03/14/13 < 95 < 3.9 MW-ZN-07S 05/21/13 < 103 < 3.7 MW-ZN-07S 09/09/13 < 93 < 4.6 MW-ZN-07S 10/07/13 < 61

4.1 MW-ZN-08S 03/15/13 < 147 < 3.7 MW-ZN-08S 05/21/13 < 133 < 3.5 MW-ZN-08S 09/09/13 < 122 < 4.2 MW-ZN-08S 10/07/13 < 38 < 3.8 MW-ZN-09S 03/13/13 < 93 < 3.7 MW-ZN-09S 05/20/13 < 83 < 3.5 MW-ZN-09S 09/10/13 < 128 < 4.2 MW-ZN-09S 10/09/13 < 77 < 4.4 MW-ZN-10S 03/12/13 < 147 < 4.1 MW-ZN-10S 05/20/13 < 115

3.5 MW-ZN-10S 09/10/13 < 115 < 4.4 MW-ZN-10S 10/08/13 < 132 < 4.8 MW-ZN-11S 03/14/13 < 91 < 3.8 MW-ZN- 1iS 05/21/13 < 83 < 3.6 MW-ZN- 1iS 09/09/13 < 138 < 4.5 MW-ZN- 1iS 10/07/13 < 107 < 4.2 B-4 Page 178 of 181

TABLE B-II.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2013 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)

SW-ZN-01 03/11/13 < 187 < 0.7 < 0.6 < 0.7 3.2 +/- 0.8 < 1.8 SW-ZN-01 05/20/13 < 182 < 0.5 < 0.2 < 0.6 3.1 +/- 0.8 < 1.4 SW-ZN-01 09/11/13 < 200 < 0.9 < 0.7 < 0.4 3.3 +/- 0.9 < 1.5 SW-ZN-01 10/08/13 < 170 < 0.7 < 0.7 < 1.1 3.5 +/- 0.8 < 1.7 B-5 Page 179 of 181

TABLE B-Ih.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2013 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 03/11/13 < 51 < 33 <4 <5 < 10 <4 <9 <5 <9 <4 <5 <42 <11 SW-ZN-01 05/20/13 < 46 < 34 <5 <4 < 12 <5 <9 <5 <8 <4 <5 <36 <7 SW-ZN-01 09/11/13 < 69 < 80 <5 <6 < 14 <5 < 10 <8 < 11 < 4 < 5 < 139 < 46 SW-ZN-01 10/08/13 < 63 < 35 <4 <6 < 12 <4 <7 <6 <9 < 3 < 4 < 102 < 24 BOLDED VALUES INDICATE LLD COULD NOT BE MET DUE TO AGE OF SAMPLE AT TIME OF RECEIPT AT THE LABORATORY cc 0

cc

TABLE B-11.3 CONCENTRATIONS OF IRON-55 AND NICKEL-63 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Fe-55 Ni-63 DATE SW-ZN-01 03/11/13 < 122 < 3.8 SW-ZN-01 05/20/13 < 102 < 3.5 SW-ZN-01 09/11/13 < 115 < 4.0 SW-ZN-01 10/08/13 < 95 < 3.8 B-7 Page 181 of 181

ZS-2014-0101, Independent Spent Fuel Storage Installation 2013 Annual Radiological Environmental Operating Report

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