ML15134A295

Annual Radiological Environmental Operating Report, 1 Janaury Through 31 December 2014

ML15134A295
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Site:	Braidwood
Issue date:	05/31/2015
From:	Exelon Generation Co, Teledyne Brown Engineering Environmental Services
To:	Office of Nuclear Reactor Regulation
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Docket No: 50-456 50-457 BRAIDWOOD STATION UNITS 1 and 2 Annual Radiological Environmental Operating Report 1 January through 31 December 2014 Prepared By Teledyne Brown Engineering Environmental Services Braidwood Station Braceville, IL 60407 May 2015

Intentionally left blank Table Of Contents I. Summary and Conclusions .............................................................................................. 1 II. Introduction ..................................................................................................................... 3 A. Objectives of the REMP ...................................................................................... 3 B. Implementation of the Objectives ........................................................................ 3 III. Program Description ...................................................................................................... 3 A. Sample Collection ............................................................................................... 3 B. Sample Analysis .................................................................................................. 6 C. Data Interpretation .............................................................................................. 6 D. Program Exceptions ............................................................................................ 7 E. Program Changes ............................................................................................. 10 IV. Results and Discussion ............................................................................................... 10 A. Aquatic Environment ......................................................................................... 10

1. Surface Water......................................................................................... 10

2. Public Water ........................................................................................... 11

3. Ground/Well Water ................................................................................. 12

4. Fish ......................................................................................................... 12

5. Sediment................................................................................................. 13 B. Atmospheric Environment ................................................................................. 13

1. Airborne .................................................................................................. 13

a. Air Particulates............................................................................. 13

b. Airborne Iodine ............................................................................ 14 C. Terrestrial Environment ..................................................................................... 14

1. Milk.......................................................................................................... 14

2. Food Products ........................................................................................ 15 D. Ambient Gamma Radiation ............................................................................... 15 E. Land Use Survey ............................................................................................... 15 F. Errata Data ........................................................................................................ 16 G. Summary of Results - Inter-laboratory Comparison Program ......................... 18 i

Appendices Appendix A Radiological Environmental Monitoring Report Annual Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for Braidwood Station, 2014 Appendix B Location Designation, Distance & Direction, and Sample Collection &

Analytical Methods Tables Table B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2014 Table B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Braidwood Station, 2014 Figures Figure B-1 Inner Ring OSLD Locations of the Braidwood Station, 2014 Figure B-2 Fixed Air Sampling and Outer Ring OSLD Locations of the Braidwood Station, 2014 Figure B-3 Ingestion and Waterborne Exposure Pathway Sample Locations of the Braidwood Station, 2014 Appendix C Data Tables and Figures - Primary Laboratory Tables Table C-I.1 Concentrations of Gross Beta in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-I.2 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-I.3 Concentrations of Nickel-63 in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-I.4 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-II.1 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Braidwood Station, 2014.

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Table C-II.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-II.3 Concentrations of I-131 in Public Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-II.4 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-III.1 Concentrations of Tritium in Ground/Well Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-III.2 Concentrations of Gamma Emitters in Ground/Well Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-IV.1 Concentrations of Nickel-63 and Gamma Emitters in Fish Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-V.1 Concentrations of Nickel-63 and Gamma Emitters in Sediment Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-VI.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-VI.2 Monthly and Yearly Mean Values of Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-VI.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-VII.1 Concentrations of I-131 in Air Iodine Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-VIII.1 Concentrations of I-131 in Milk Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-VIII.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-IX.1 Concentrations of Gamma Emitters in Vegetation Samples Collected in the Vicinity of Braidwood Station, 2014.

Table C-X.1 Quarterly OSLD Results for Braidwood Station, 2014.

Table C-X.2 Mean Quarterly OSLD Results for the Inner Ring, Outer Ring, Other, Control, and Independent Spent Fuel Storage Installation (ISFSI)

Locations for Braidwood Station, 2014.

Table C-X.3 Summary of the Ambient Dosimetry Program for Braidwood Station, 2014.

Figures Figure C-1 Surface Water - Gross Beta - Stations BD-10 and BD-25 (C) Collected in the Vicinity of Braidwood Station, 2000 - 2014.

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Figure C-2 Surface Water - Gross Beta - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2007 - 2014.

Figure C-3 Surface Water - Gross Beta - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2014.

Figure C-4 Surface Water - Tritium - Stations BD-10 and BD-25 (C) Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-5 Surface Water - Tritium - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2006 - 2014.

Figure C-6 Surface Water - Tritium - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2014.

Figure C-7 Public Water - Gross Beta - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-8 Public Water - Tritium - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-9 Ground/Well Water - Tritium - Stations BD-13 and BD-34 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-10 Ground/Well Water - Tritium - Stations BD-35 and BD-36 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-11 Ground/Well Water - Tritium - Station BD-37 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-12 Ground/Well Water - Tritium - Stations BD-50 and BD-51 Collected in the Vicinity of Braidwood Station, 2007 - 2014.

Figure C-13 Ground/Well Water - Tritium - Stations BD-53 and BD-54 Collected in the Vicinity of Braidwood Station, 2007 - 2014.

Figure C-14 Air Particulate - Gross Beta - Stations BD-03 (C) and BD-06 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-15 Air Particulate - Gross Beta - Stations BD-19 and BD-20 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-16 Air Particulate - Gross Beta - Station BD-21 Collected in the Vicinity of Braidwood Station, 2000 - 2014.

Figure C-17 Air Particulate - Gross Beta - Stations BD-02 and BD-04 Collected in the Vicinity of Braidwood Station, 2005 - 2014.

Figure C-18 Air Particulate - Gross Beta - Station BD-05 Collected in the Vicinity of Braidwood Station, 2005 - 2014.

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Appendix D Inter-Laboratory Comparison Program Tables Table D-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2014 Table D-2 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2014 Table D-3 DOEs Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2014 Table D-4 ERA Statistical Summary Proficiency Testing Program for Environmental, Inc., 2014 Table D-5 DOEs Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2014 Appendix E Effluent Data Appendix F Meteorological Data Appendix G Errata Data Appendix H Annual Radiological Groundwater Protection Program Report (ARGPPR) v

I. Summary and Conclusions This report on the Radiological Environmental Monitoring Program (REMP) conducted for Exelons Braidwood Station covers the period January 1, 2014 through December 31, 2014. During that time period 1,574 analyses were performed on 1,347 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of Braidwood Station had no adverse radiological impact on the environment.

Surface, public, and ground/well water samples were analyzed for concentrations of tritium and gamma emitting nuclides. Surface water and public water samples were also analyzed for concentrations of gross beta. Gross beta and tritium activities detected were consistent with those detected in previous years. No fission or activation products were detected. As part of an effort to implement industry best practices, both gaseous and liquid station effluents were evaluated for all 10CFR61 required nuclides. Nuclides exceeding 1% relative abundance in the waste stream were added to the list of nuclides that Teledyne Brown evaluates in potentially impacted REMP matrices. For Braidwood Station, Ni-63 exceeds 1% relative abundance in the radwaste resins. Occasionally, Ni-63 is observed in liquid release tank quarterly composites, therefore, beginning in the fall of 2013 the station requested that Ni-63 be evaluated in the downstream surface water, sediment, and fish analyses. Ni-63 has not been observed in downstream surface water.

Fish (commercially and/or recreationally important species) and sediment samples were analyzed for concentrations of gamma emitting nuclides. No fission or activation products were detected in fish. Nickel-63 was not detected in any fish or sediment samples analyzed. Two sediment samples had Cs-137.

The concentration was consistent with levels observed during the preoperational years. No plant produced fission or activation products were found in sediment.

Air particulate samples were analyzed for concentrations of gross beta and gamma emitting nuclides. No fission or activation products were detected.

High sensitivity I-131 analyses were performed on weekly air samples. All results were less than the minimum detectable concentration for I-131.

Cow milk samples were analyzed for concentrations of I-131 and gamma emitting nuclides. Iodine-131 was not detected in any milk samples.

Concentrations of naturally occurring K-40 were detected. No fission or activation products were found and all required LLDs (Lower Limit of Detection) were met.

Food Product samples were analyzed for concentrations of gamma emitting nuclides. No plant produced fission or activation products were detected.

Environmental gamma radiation measurements were performed quarterly using 1

Optically Stimulated Luminescence Dosimeters (OSLD). Beginning in 2012, Exelon changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimetry were deployed and Thermo-luminescent Dosimetry (TLD) were discontinued. This change may result in a step change in readings, up or down, depending on site characteristics. The relative comparison to control locations remains valid.

OSLD technology is different than that used in a TLD but has the same purpose (to measure direct radiation).

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II. Introduction The Braidwood Station, consisting of two 3,587 MWt pressurized water reactors owned and operated by Exelon Corporation is located in Will County, Illinois.

Unit No. 1 went critical on May 29, 1987. Unit No. 2 went critical on March 08, 1988. The site is located in northeastern Illinois, 15 miles south-southwest of Joliet, Illinois, 60 miles southwest of Chicago and southwest of the Kankakee River.

This report covers those analyses performed by Teledyne Brown Engineering (TBE), Landauer Technologies and Environmental Inc. (Midwest Labs) on samples collected during the period January 1, 2014 through December 31, 2014.

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.

III. Program Description A. Sample Collection Samples for the Braidwood Station REMP were collected for Exelon Nuclear by Environmental Inc. (Midwest Labs). This section describes the general collection methods used by Environmental Inc. (Midwest Labs) to obtain environmental samples for the Braidwood Station REMP in 2014.

Sample locations and descriptions can be found in Table B-1 and Figures B-1 through B-3, Appendix B. The sampling methods used by Environmental Inc. are listed in Table B-2.

Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, public water, well water, fish, and sediment. Two gallon water samples were collected weekly from six surface water locations (BD-10, BD-25 [control], BD-38, BD-40, BD-55 and BD-56), and one weekly composite samples of public drinking water at location (BD-22) and ground/well water samples collected quarterly from eight locations (BD-13, BD-34, BD-35, BD-36, BD-37, BD-50, BD-51 and BD-54). All samples were collected in new unused plastic bottles, which were rinsed with source water prior to collection. Fish samples comprising the flesh of largemouth bass, golden redhorse, shorthead redhorse, smallmouth bass, and common carp were collected semiannually at three locations, BD-25 (control), BD-28 and BD-41.

Sediment samples composed of recently deposited substrate were collected at three locations semiannually, BD-10, BD-25 (control), and BD-57.

Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulate and airborne iodine. Air particulate samples were collected and analyzed weekly at eight locations (BD-02, BD-03, BD-04, BD-05, BD-06, BD-19, BD-20 and BD-21). The control location was BD-03. Airborne iodine and particulate samples were obtained at each location, using a vacuum pump with charcoal and glass fiber filters attached. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The air filters and air iodine samples were replaced weekly and sent to the laboratory for analysis.

Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on milk and food product samples. Milk samples were collected biweekly at one location (BD-17) from May through October and monthly from November through April. Control location (BD-18) was unavailable, due to cows being sold. All samples were collected in new unused two gallon plastic bottles from the bulk tank at each location, preserved with sodium bisulfite and shipped promptly to the laboratory. Food products were collected annually in September at five locations (BD-Control, BD-Quad 1, BD-Quad 2, BD-Quad 3 and BD-Quad 4). The control location was BD-Control. Various types of samples were collected and placed in new unused plastic bags and sent to the laboratory for analysis.

Ambient Gamma Radiation Beginning in 2012, Exelon changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimeters (OSLD) were deployed and the use of Thermoluminescent Dosimeters (TLD) was discontinued. This change may result in a step change in readings, up or down, depending on site characteristics. The relative comparison to control locations remains valid. OSLD technology is different than that used in a TLD but has the same purpose (to measure direct radiation).

Each location consisted of 2 OSLDs. The OSLDs were exchanged quarterly and sent to Landauer for analysis. The OSLDs were placed at locations on and around the Braidwood Station site as follows:

An inner ring consisting of 16 locations (BD-101, BD-102, BD-103, BD-104, BD-105, BD-106, BD-107, BD-108, BD-109, BD-110, BD-111a, BD-112, BD-113a, BD-114, BD-115 and BD-116) at or near the site boundary.

An outer ring consisting of 16 locations (BD-201, BD-202, BD-203, BD-204, BD-205, BD-206, BD-207, BD-208, BD-209, BD-210, BD-211, BD-212, BD-213, BD-214, BD-215 and BD-216) extending to approximately 5 miles from the site.

An additional (other) set consisting of seven locations (BD-02, BD-04, BD-05, BD-06, BD-19, BD-20 and BD-21).

The balance of one location (BD-03) represents the control area.

The specific OSLD 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 Braidwood Station, if any, would be most significant.

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 Braidwood Station REMP in 2014. 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 and surface water and air particulates.

2. Concentrations of gamma emitters in public, ground/well and surface water, air particulates, milk, fish, sediment and food products.

3. Concentrations of tritium in public, ground/well and surface water.

4. Concentrations of I-131 in air, milk and public water.

5. Concentrations of Ni-63 in surface water, fish and sediment.

6. Ambient gamma radiation levels at various site environs.

C. Data Interpretation The radiological and direct radiation data collected prior to Braidwood Station becoming operational were used as a baseline with which these operational data were compared. For the purpose of this report, Braidwood 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) was 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 was 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 Braidwood Station detection capabilities for environmental sample analysis.

The MDC is the smallest concentration of radioactive material in a sample that will yield a net count, above system background, that will be detected with 95% probability with only 5% probability of falsely concluding that a blank observation represents a "real" signal. The MDC is an a postori determination.

2. Net Activity Calculation and Reporting of Results Net activity for a sample was calculated by subtracting background activity from the sample activity. Since the REMP measures extremely small changes in radioactivity in the environment, background variations may result in sample activity being lower than the background activity resulting in 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 surface, ground/well water, and fish 12 nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, I-131, Cs-134, Cs-137, Ba-140 and La-140 were reported.

For public water, sediment, air particulate, milk and vegetation 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 the single analysis uncertainty.

D. Program Exceptions For 2014 the Braidwood Station REMP had a sample recovery rate in excess of 98.2%. 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 OSLD BD-205-2, BD-216-2 01/02/14 Fourth quarter 2013 OSLDs found missing during quarterly exchange; st collector placed new 1 quarter 2014 OSLDs.

WW BD-54 01/09/14 No sample; water shut off; house appears empty. Collector will attempt to obtain samples during quarterly collection period.

A/I BD-02 03/13/14 No apparent reason for low reading of 161.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />.

OSLD BD-104-1, BD-206-1, OSLDs missing in field; collector nd BD-208-1 placed new 2 quarter OSLDs.

A/I BD-04 05/15/14 No apparent reason for the low reading of 149.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

A/I BD-03 06/26/14 Low reading of 139.4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> possibly due to power outages from storms.

A/I BD-21 06/26/14 Low reading due to pump malfunction; pump replaced.

Insufficient volume for valid sample.

OSLD BD-06-2 06/26/14 OSLD disappeared during shipment from Braidwood to Landauer, Inc.

dosimeter was confirmed to be collected at the field location and shipped out, but was not received at Landauer.

OSLD BD-114-2, BD-103-1 06/26/14 OSLDs missing in field. Collector rd placed new 3 quarter OSLDs.

A/I BD-02 07/03/14 Low reading of 151.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> possibly due to power outages from storms.

A/I BD-04 07/10/14 No apparent reason for the low reading of 145.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />.

Table D-1 LISTING OF SAMPLE ANOMALIES (continued)

Sample Location Collection Reason Type Code Date WW BD-54 07/10/14 No sample; water shut off; house appears empty. Collector will attempt to obtain sample during quarterly collection period. Note:

Sample collected 09/04/14.

A/I BD-03 07/17/14 Low reading of 58.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> due to pump malfunction; Flowrate estimated at 60 CFM.

A/I BD-03 11/26/14 Low reading of 142.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> possibly due to placement of new utility pole.

Table D-2 LISTING OF MISSED SAMPLES Sample Location Collection Reason Type Code Date SW BD-55, BD-56 01/02/14 No sample; water frozen.

M BD-18 01/02/14 No sample for entire year; farmer sold cows.

SW BD-55, BD-56 01/09/14 No sample; water frozen.

SW BD-55, BD-56 01/16/14 No sample; water frozen.

SW BD-38, BD-55, 01/23/14 No sample; water frozen.

BD-56 SW BD-25, BD-38, 01/30/14 No sample; water frozen.

BD-55, BD-56 SW BD-25, BD-38, 02/06/14 No sample; water frozen.

BD-55, BD-56 SW BD-25, BD-38, 02/13/14 No sample; water frozen.

BD-55, BD-56 SW BD-38, BD-55, 02/19/14 No sample; water frozen.

BD-56 Table D-2 LISTING OF MISSED SAMPLES (continued)

Sample Location Collection Reason Type Code Date SW BD-38, BD-55, 02/27/14 No sample; water frozen.

BD-56 SW BD-38, BD-55, 03/06/14 No sample; water frozen.

BD-56 WW BD-54 01/09/14 No sample; house empty; water off.

SW BD-55, BD-56 03/13/14 No sample; water frozen.

A/I BD-03 07/24/14 Pump not running due to circuit breaker malfunction. Collector placed new pump; will check sampler for possible rewiring.

SW BD-38, BD-55, 12/31/14 No sample; water frozen.

BD-56 Each program exception was reviewed to understand the causes of the program exception. Sampling and maintenance issues were reviewed with the personnel involved to prevent recurrence. Occasional equipment breakdowns, power outages and weather related issues were unavoidable.

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

E. Program Changes There were no program changes in 2014.

IV. Results and Discussion A. Aquatic Environment

1. Surface Water Samples were taken weekly and composited monthly at six locations (BD-10, BD-25 (control), BD-38, BD-40, BD-55 and BD-56). Of these locations, only BD-10 could be affected by Braidwood Stations effluent releases as it is downstream of the NPDES permitted outfall. The following analyses were performed.

Gross Beta Samples from all locations were analyzed for concentrations of gross beta (Table C-I.1, Appendix C). Gross beta was detected in 66 of 69 samples. The values ranged from 2.4 to 13.9 pCi/L.

Concentrations detected were consistent with those detected in previous years (Figures C-1 through C-3, Appendix C).

Tritium Quarterly composites of weekly collections were analyzed for tritium activity (Table C-I.2, Appendix C). Tritium activity was detected in two samples. The values ranged from 221 to 241 pCi/l (Figures C-4 through C-6, Appendix C).

Nickel-63 Monthly samples were analyzed for Nickel-63 activity (Table C-I.3, Appendix C). Nickel-63 was not detected and the required LLD was met.

Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-I.4, Appendix C). No nuclides were detected and all required LLDs were met.

2. Public Water Monthly composites of weekly samples were made at one location (BD-22). This location could be affected by Braidwood Stations effluent releases. The following analyses were performed:

Gross Beta Samples from the location were analyzed for concentrations of gross beta (Tables C-II.1, Appendix C). Gross beta was detected in 11 of 12 samples. The values ranged from 2.7 to 4.5 pCi/L.

Concentrations detected were consistent with those detected in previous years (Figure C-7, Appendix C).

Tritium Monthly composites of weekly samples from BD-22 were analyzed for tritium activity (Table C-II.2, Appendix C). Tritium was detected in 11 of 12 samples. The concentration ranged from 223 to 1,410 pCi/L. Concentrations detected were consistent with those detected in previous years (Figure C-8, Appendix C).

Iodine Monthly composites of weekly samples from the location were analyzed for I-131 (Table C-II.3, Appendix C). Iodine was not detected in any samples and the required LLD was met.

Gamma Spectrometry Samples from the location were analyzed for gamma emitting nuclides (Table C-II.4, Appendix C). No nuclides were detected and all required LLDs were met.

3. Ground/Well Water Quarterly samples were collected at eight locations (BD-13, BD-34, BD-35, BD-36, BD-37, BD-50, BD-51and BD-54). The following analyses were performed:

Tritium Quarterly grab samples from the locations were analyzed for tritium activity (Table C-III.1, Appendix C). Tritium was not detected in any sample and the required LLD was met. (Figures C-9 through C-13, Appendix C).

Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-III.2, Appendix C). No nuclides were detected and all required LLDs were met.

4. Fish Fish samples comprised of largemouth bass, golden redhorse, shorthead redhorse, smallmouth bass, and common carp were collected at three locations (BD-25, BD-28, and BD-41) semiannually. Location BD-28 could be affected by Braidwood Stations effluent releases. The following analysis was performed:

Gamma Spectrometry The edible portion of fish samples from all three locations was analyzed for gamma emitting nuclides (Table C-IV.1, Appendix C).

No fission or activation products were found. No nuclides were detected and all required LLDs were met.

5. Sediment Aquatic sediment samples were collected at three locations (BD-10, BD-25, and BD-57) semiannually. The locations at the Braidwood Station outfall to the Kanakakee River and downstream of the outfall, could be affected by Braidwood Stations effluent releases. The following analysis was performed:

Gamma Spectrometry Sediment samples from the location were analyzed for gamma emitting nuclides (Table C-V.1, Appendix C). Concentrations of the fission product Cs-137 were found at locations BD-10 and BD-57. The concentration ranged from 104 to 162 pCi/kg dry. The activity detected was consistent with those detected in previous years (29 pCi/kg to 260 pCi/kg from 1995 to 2006). No other Braidwood fission or activation products were found and all required LLDs were met.

B. Atmospheric Environment

1. Airborne

a. Air Particulates Continuous air particulate samples were collected from eight locations on a weekly basis. The eight locations were separated into three groups: Near field samplers (BD-06, BD-19, BD-20 and BD-21), far field samplers within 10 km of the site (BD-02, BD-04 and BD-05) and the Control sampler between 10 and 30 km from the site (BD-03). The following analyses were performed:

Gross Beta Weekly samples were analyzed for concentrations of beta emitters (Table C-VI.1 and C-VI.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 Braidwood Station. The results from the near field (Group 3

I) ranged from 8 E-03 to 32 E-02 pCi/m with a mean of 18 E-02 pCi/m3. The results from the far field (Group II) ranged from 8 E-03 to 33 E-02 pCi/m3 with a mean of 18 E-02 pCi/m3. The results from the Control location (Group III) ranged from 8 E-03 to 49 E-02 pCi/m3 with a mean of 19 E-02 pCi/m3. Comparison of the 2014 air particulate data with previous years data indicate no effects from the operation of Braidwood Station. In addition a comparison of the weekly mean values for 2014 indicate no notable differences among the three groups (Figures C-14 through C-18, Appendix C).

Gamma Spectrometry Weekly samples were composited quarterly and analyzed for gamma emitting nuclides (Table C-VI.3, Appendix C).

No nuclides were detected and all required LLDs were met.

b. Airborne Iodine Continuous air samples were collected from eight locations (BD-02, BD-03, BD-04, BD-05, BD-06, BD-19, BD-20 and BD-21) and analyzed weekly for I-131 (Table C-VII.1, Appendix C). All results were less than the minimum detectable concentration for I-131.

C. Terrestrial Environment

1. Milk Samples were collected from one location (BD-17) and are typically collected from the control location (BD-18).

Sampling frequencies were increased to biweekly in May and continued through October and monthly sampling was performed November through April. The following analyses were performed:

Iodine-131 Milk samples from the indicator location were analyzed for concentrations of I-131 (Table C-VIII.1, Appendix C).

Iodine-131 was not detected in any samples. All required LLDs were met.

Gamma Spectrometry Each milk sample was analyzed for concentrations of gamma emitting nuclides (Table C-VIII.2, Appendix C). No nuclides were detected and all required LLDs were met.

2. Food Products Food product samples were collected at five locations (BD-Control, BD-Quad 1, BD-Quad 2, BD-Quad 3 and BD-Quad

4) when available. Four locations, (located downwind, BD-Quad 1, BD-Quad 2, BD-Quad 3 and BD-Quad 4) could be affected by Braidwood Stations effluent releases. The following analysis was performed:

Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-IX.1, Appendix C). No nuclides were detected and all required LLDs were met.

D. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Optically Stimulated Luminescence Dosimeter (OSLD). Eighty Six OSLD locations were established around the site. Results of OSLD measurements are listed in Tables C-X.1 to C-X.3, Appendix C.

Most OSLD measurements were below 30 mrem/quarter, with a range of 13.9 to 30.1 mrem/quarter. A comparison of the Inner Ring, Outer Ring and Other data to the Control Location data, indicate that the ambient gamma radiation levels from all locations were similar.

E. Land Use Survey A Land Use Survey conducted during August 2014 around the Braidwood Station was performed by Environmental Inc. (Midwest Labs) for Exelon Nuclear to comply with section 12.5.2 of the Braidwood Stations 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. For dose calculation, a garden is assumed at the nearest residence. There were no changes required to the Braidwood Station REMP, as a result of this survey. The results of this survey are summarized below.

Distance in Miles from the Braidwood Station Reactor Buildings Sector Residence Livestock Milk Farm Miles Miles Miles (A) N 0.5 2.6 -

(B) NNE 0.9 - -

(C) NE 0.7 0.9 -

(D) ENE 0.8 3.3 -

(E) E 1.5 2.3 -

(F) ESE 2.2 2.3 -

(G) SE 2.7 2.7 -

(H) SSE 4.5 - -

(J) S 4.2 4.8 -

(K) SSW 1.3 5.3 5.5 (L) SW 0.4 1.2 -

(M) WSW 0.5 - -

(N) W 0.4 1.6 -

(P) WNW 0.4 - -

(Q) NW 0.4 - -

(R) NNW 0.4 - -

F. Errata Data CY-BR-170-301, Offsite Dose Calculation Manual (ODCM), requires the AREOR to include the results of all radiological environmental samples and of all environmental radiation measurements taken during the period pursuant to the locations specified in the tables and figures in the ODCM.

1. A 2011 revision to the Braidwood ODCM added six Independent Spent Fuel Storage Installation (ISFSI) dosimeters to the Radiological Environmental Monitoring Program (REMP). The ISFSI dosimeters and the radiation dose recorded by the dosimeters were not included in the analyses reported in the 2011, 2012, and 2013 Annual Radiological Environmental Operating Reports (AREORs). Additionally, the land use census included in the AREOR does not identify the nearest resident to the ISFSI.

The ODCM also requires the nearest residence to the ISFSI be identified and reported in the land use census included in the AREOR.

Reporting omissions identified in the 2011, 2012, and 2013 AREORs:

Dosimeters for the ISFSI added to the ODCM in 2011 need to be included in the analyses documented in the following areas of the 2014 AREOR:

A. Appendix B, Table B-1, Sampling Locations, Distance &

Direction, and Sample Collection and Analytical Methods (AREOR 2011, 2012, 2013)

B. Appendix B, Figure B-1, Inner ring OSLD Locations (AREOR 2011, 2012, 2013)

C. Table C-X.1, Quarterly OSLD Results for Braidwood Station (AREOR 2011, 2013)

D. Table C-X.3, Mean Quarterly OSLD Results for the Inner Ring, Outer Ring, Other and Control Locations for Braidwood Station (by location) AREOR 2011, 2013)

E.Section IV.E, Results and Discussion - Land Use Survey, locates the nearest residence by distance in miles from the ISFSI Pad. (AREOR 2011, 2012, 2013)

F. ISFSI dosimeter locations BD-104-3, BD-104-4, BD-105-3, BD-105-4, BD-110-3, and BD-110-4 were added to Table 11-1 in CY-BR-170-301, Offsite Dose Calculation Manual (ODCM), revision 6 (October 27, 2011), Radiological Environmental Monitoring Program, but these were not added to the map in Figure 11-2, Other OSLD Locations.

Distance in Miles from the Braidwood Station ISFSI Pad, 2014 Sector Residence Miles (N) W 0.7 (P) WNW 0.7 (Q) NW 0.7 (R) NNW 0.7 Requirement: CY-BR-170-301, Offsite Dose Calculation Manual (ODCM), requires the AREOR to include the results of all radiological environmental samples and of all environmental radiation measurements taken during the period pursuant to the locations specified in the tables and figures in Chapter 11 of the ODCM Requirement: CY-BR-170-301, Offsite Dose Calculation Manual (ODCM), Section 12.5.2, Land Use Census, requires the land use census to identify the nearest resident to the ISFSI and be included in the AREOR.

2. Reporting omissions identified in the 2007 AREOR:

Well sample locations BD-52 and BD-53 were removed from ODCM Table 11-1. However, they were still identified on the map in Figure 11-3, Ingestion, and Waterborne Exposure Pathway Sample Locations in CY-BR-170-301, Offsite Dose Calculation Manual (ODCM), revision 3 (April 4, 2007).

G. 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 (Appendix D). The PE samples supplied by Analytics Inc., Environmental Resource Associates (ERA) and DOEs 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 ERAs evaluation report provides an acceptance range for control and warning limits with associated flag values. ERAs acceptance limits are established per the USEPA, NELAC, State Specific PT program requirements or ERAs 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 MAPEPs evaluation report provides an acceptance range with associated flag values.

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

In reviewing our environmental inter-laboratory crosscheck programs, we identified 1) duplication of efforts on some matrices and isotopes and 2) that we are performing crosscheck samples on some matrices and isotopes that we do not perform for clients. Since the DOE MAPEP is designed to evaluate the ability of analytical facilities to correctly analyze for radiological constituents representative of those at DOE sites, the needed changes were made to the MAPEP program. Therefore, the following isotopes were removed from the MAPEP program:

Soil - gamma - will be provided by Analytics twice per year, starting in nd 2015. For 2014, one soil gamma is provided by MAPEP, the 2 soil gamma is provided by Analytics.

AP - gamma - is currently provided by Analytics.

Water - gamma, H-3, Sr-90, uranium, gross alpha and gross beta currently provided by ERA.

MAPEP evaluates non-reported (NR) analyses as failed if they were reported in the previous series.

For the TBE laboratory, 163 out of 169 analyses performed met the specified acceptance criteria. Six analyses (Ni-63, K-40 and I-131 in water, and two Sr-90s and one Gross Alpha in AP samples) did not meet the specified acceptance criteria for the following reasons:

1. Teledyne Brown Engineerings MAPEP March 2014 Ni-63 in water result of 32.7 +/- 1.69 Bq/L was overlooked when reporting the data but would have passed the acceptance range of 23.9 - 44.2 Bq/L.

NCR 14-04

2. Teledyne Brown Engineerings MAPEP March 2014 K-40 in water result of 1.63 +/- 2.49 Bq/L was overlooked when reporting the data but would have passed the false positive test. NCR 14-04

3. Teledyne Brown Engineerings ERA November 2014 I-131 in water result of 15.8 pCi/L was lower than the known value of 20.3 pCi/L, failing below the lower acceptance limit of 16.8. The result was evaluated as failed with a found to known ratio of 0.778. No cause could be found for the slightly low result. All ERA I-131 evaluations since 2004 have been acceptable. NCR 14-08

4. Teledyne Brown Engineerings MAPEP March 2014 Sr-90 in AP result of 0.822 Bq/sample was lower than the known value of 1.18 Bq/sample, failing below the lower acceptance limit of 0.83 Bq/sample. The rerun result was still low, but fell within the lower acceptance range of 0.836. The rerun result was statistically the same number as the original result. No cause could be found for the slightly low results. NCR 14-04

5. Teledyne Brown Engineerings MAPEP September 2014 Sr-90 in AP result of 0.310 Bq/sample was lower than the known value of 0.703 Bq/sample. The gravimetric yield of 117% was very high (we normally see yields of 60% to 70 %) and could account for the low activity. NCR 14-09

6. Teledyne Brown Engineerings MAPEP September 2014 Gr-Alpha in AP result of 0.153 Bq/sample was lower than the known value of 0.53 Bq/sample. The AP sample was counted on the wrong side.

The AP was flipped over and recounted with acceptable results.

NCR 14-09 For the EIML laboratory, 85 of 90 analyses met the specified acceptance criteria. Five analyses (Water - Pu-238, Pu-239, Fe-55; AP - Co-57; Soil, Cs134) did not meet the specified acceptance criteria for the following reasons:

1. Environmental Inc., Midwest Laboratorys MAPEP February 2014 water Pu-238 result of 1.28 Bq/L was higher than the known value of 0.83 Bq/L, exceeding the upper control limit of 1.08 Bq/L. The high bias on the plutonium was traced to contamination from a newly purchased standard. The result of the reanalysis with the new tracer was 0.68, which fell within the acceptance criteria.

2. Environmental Inc., Midwest Laboratorys MAPEP February 2014 water Pu-239/240 result of 0.91 Bq/L was higher than the known value of 0.68 Bq/L, exceeding the upper control limit of 0.88 Bq/L.

The high bias on the plutonium was traced to contamination from a newly purchased standard. The result of reanalysis with the new tracer was 0.66 Bq/L, which fell within the acceptance criteria.

3. Environmental Inc., Midwest Laboratorys MAPEP February 2014 AP Co-57 result of 1.60 +/- 0.05 Bq/total sample failed the false positive test. Interference from the Eu-152 resulted in the misidentification of Co-57.

4. Environmental Inc., Midwest Laboratorys MAPEP February 2014 soil Cs-134 result of 6.10 +/- 1.80 Bq/kg failed the false positive test.

Long sample counting time lead to interference from naturally occurring Bi-214 in the sample matrix with a close spectral energy.

5. Environmental Inc., Midwest Laboratorys MAPEP August 2014 water Fe-55 result of 55.10 +/- 14.80 Bq/L was higher than the known value of 31.50 Bq/L, exceeding the upper control limit of 41.00 Bq/L. The result of the reanalysis of Fe-55 was 32.63 +/-

16.30 Bq/L, which fell within the acceptance criteria.

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

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT ANNUAL

SUMMARY

Intentionally left blank TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 SURFACE WATER GR-B 67 4 6.2 9.1 10.2 BD-40 INDICATOR 0 (PCI/LITER) (53/55) (12/12) (12/12) BRAIDWOOD STATION COOLING LAKE (2.4/12.9) (5.4/13.9) (8.4/12.9) ONSITE H-3 24 200 231 <LLD 231 BD-10 INDICATOR 0 (2/20) (2/4) KANKAKEE RIVER DOWNSTREAM (221/241) (221/241) 5.4 MILES NE OF SITE NI-63 24 30 <LLD <LLD - 0 A-1 GAMMA 67 MN-54 15 <LLD <LLD - 0 CO-58 15 <LLD <LLD - 0 FE-59 30 <LLD <LLD - 0 CO-60 15 <LLD <LLD - 0 ZN-65 30 <LLD <LLD - 0 NB-95 15 <LLD <LLD - 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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 SURFACE WATER ZR-95 30 <LLD <LLD - 0 (PCI/LITER)

I-131 15 <LLD <LLD - 0 CS-134 15 <LLD <LLD - 0 A-2 CS-137 18 <LLD <LLD - 0 BA-140 60 <LLD <LLD - 0 LA-140 15 <LLD <LLD - 0 PUBLIC WATER GR-B 12 4 3.8 NA 3.8 BD-22 INDICATOR 0 (PCI/LITER) (11/12) (11/12) WILMINGTON (2.7/4.5) (2.7/4.5) 6.0 MILES NE OF SITE H-3 12 200 615 NA 615 BD-22 INDICATOR 0 (11/12) (11/12) WILMINGTON (223/1410) (223/1410) 6.0 MILES NE OF SITE I-131 12 1 <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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 GAMMA 12 (PCI/LITER) MN-54 15 <LLD NA - 0 CO-58 15 <LLD NA - 0 FE-59 30 <LLD NA - 0 A-3 CO-60 15 <LLD NA - 0 ZN-65 30 <LLD NA - 0 NB-95 15 <LLD NA - 0 ZR-95 30 <LLD NA - 0 CS-134 15 <LLD NA - 0 CS-137 18 <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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 BA-140 60 <LLD NA - 0 (PCI/LITER)

LA-140 15 <LLD NA - 0 GROUND WATER H-3 30 200 <LLD NA - 0 (PCI/LITER)

A-4 GAMMA 30 MN-54 15 <LLD NA - 0 CO-58 15 <LLD NA - 0 FE-59 30 <LLD NA - 0 CO-60 15 <LLD NA - 0 ZN-65 30 <LLD NA - 0 NB-95 15 <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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 GROUND WATER ZR-95 30 <LLD NA - 0 (PCI/LITER)

I-131 15 <LLD NA - 0 CS-134 15 <LLD NA - 0 A-5 CS-137 18 <LLD NA - 0 BA-140 60 <LLD NA - 0 LA-140 15 <LLD NA - 0 FISH NI-63 12 260 <LLD <LLD - 0 (PCI/KG WET)

GAMMA 12 MN-54 130 <LLD <LLD - 0 CO-58 130 <LLD <LLD - 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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 FE-59 260 <LLD <LLD - 0 (PCI/KG WET)

CO-60 130 <LLD <LLD - 0 ZN-65 260 <LLD <LLD - 0 A-6 NB-95 NA <LLD <LLD - 0 ZR-95 NA <LLD <LLD - 0 I-131 NA <LLD <LLD - 0 CS-134 130 <LLD <LLD - 0 CS-137 150 <LLD <LLD - 0 BA-140 NA <LLD <LLD - 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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 LA-140 NA <LLD <LLD - 0 (PCI/KG WET)

SEDIMENT NI-63 6 260 <LLD <LLD - 0 (PCI/KG DRY)

GAMMA 6 MN-54 NA <LLD <LLD - 0 A-7 CO-58 NA <LLD <LLD - 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 ZR-95 NA <LLD <LLD - 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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 CS-134 150 <LLD <LLD - 0 (PCI/KG DRY)

CS-137 180 133 <LLD 162 BD-10 INDICATOR 0 (2/4) (1/2) KANKAKEE RIVER DOWNSTREAM (104/162) 5.4 MILES NE OF SITE BA-140 NA <LLD <LLD - 0 A-8 LA-140 NA <LLD <LLD - 0 AIR PARTICULATE GR-B 414 10 18 19 19 BD-03 CONTROL 0 (E-3 PCI/CU.METER) (363/363) (51/51) (51/51) COUNTY LINE ROAD (8/33) (8/49) (8/49) 6.2 MILES ESE OF SITE GAMMA 32 MN-54 NA <LLD <LLD - 0 CO-58 NA <LLD <LLD - 0 FE-59 NA <LLD <LLD - 0 CO-60 NA <LLD <LLD - 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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 ZN-65 NA <LLD <LLD - 0 (E-3 PCI/CU.METER)

NB-95 NA <LLD <LLD - 0 ZR-95 NA <LLD <LLD - 0 A-9 CS-134 50 <LLD <LLD - 0 CS-137 60 <LLD <LLD - 0 BA-140 NA <LLD <LLD - 0 LA-140 NA <LLD <LLD - 0 AIR IODINE GAMMA 414 (E-3 PCI/CU.METER) I-131 70 <LLD <LLD - 0 MILK I-131 20 1 <LLD NA - 0 (PCI/LITER)

• 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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 MILK GAMMA 20 (PCI/LITER) MN-54 NA <LLD NA - 0 CO-58 NA <LLD NA - 0 FE-59 NA <LLD NA - 0 A-10 CO-60 NA <LLD NA - 0 ZN-65 NA <LLD NA - 0 NB-95 NA <LLD NA - 0 ZR-95 NA <LLD NA - 0 CS-134 15 <LLD NA - 0 CS-137 18 <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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 MILK BA-140 60 <LLD NA - 0 (PCI/LITER)

LA-140 15 <LLD NA - 0 VEGETATION GAMMA 10 (PCI/KG WET) MN-54 NA <LLD <LLD - 0 A-11 CO-58 NA <LLD <LLD - 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 ZR-95 NA <LLD <LLD - 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 BRAIDWOOD STATION, 2014 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2014 LOCATION OF FACILITY: BRACEVILLE, 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 VEGETATION CS-134 60 <LLD <LLD - 0 (PCI/KG WET)

CS-137 80 <LLD <LLD - 0 BA-140 NA <LLD <LLD - 0 A-12 LA-140 NA <LLD <LLD - 0 DIRECT RADIATION OSLD-QUARTERLY 338 NA 19.7 20.5 24.1 BD-212-4 INDICATOR 0 (MILLIREM/QTR.) (330/330) (8/8) (4/4) 5.0 MILES WSW (13.9/30.1) (17.2/22.4) (19.4/26.4)

• 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

Intentionally left blank TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2014 Location Location Description Distance & Direction From Site A. Surface Water BD-10 Kankakee River Downstream (indicator) 5.4 miles NE BD-25 Kankakee River Upstream (control) 9.6 miles E BD-38 Main Drainage Ditch (indicator) 1.5 miles SE BD-40 Braidwood Station Cooling Lake (indicator) Onsite BD-55 North Pond Fatlan Site (indicator) 0.6 miles NE BD-56 South Pond Fatlan Site (indictor) 0.6 miles NE B. Drinking (Potable) Water BD-22 Wilmington (indicator) 6.0 miles NE C. Ground/Well Water BD-13 Braidwood City Hall Well (indicator) 1.7 miles NNE BD-34 Gibson Well (indicator) 4.7 miles E BD-35 Joly Well (indicator) 4.7 miles E BD-36 Hutton Well (indicator) 4.7 miles E BD-37 Nurczyk Well (indicator) 4.7 miles E BD-50 Skole Well (indicator) 4.7 miles E BD-51 Fatlan Well (indicator) 0.6 miles NE BD-54 Cash Well (indicator) 0.9 miles NE D. Milk - bi-weekly / monthly BD-17 Halpins Dairy (indicator) 5.5 miles SSW BD-18 Biros Farm (control) 8.7 miles W E. Air Particulates / Air Iodine BD-02 Custer Park (indicator) 5.0 miles E BD-03 County Line Road (control) 6.2 miles ESE BD-04 Essex (indicator) 4.8 miles SSE BD-05 Gardner (indicator) 5.5 miles SW BD-06 Godley (indicator) 0.5 miles WSW BD-19 Nearsite NW (indicator) 0.3 miles NW BD-20 Nearsite N (indicator) 0.6 miles N BD-21 Nearsite NE (indicator) 0.5 miles NE F. Fish BD-25 Kankakee River, Upstream (control) 9.6 miles E BD-28 Kankakee River, Discharge (indicator) 5.4 miles E BD-41 Cooling Lake (indicator) 1.0 mile E G. Sediment BD-10 Kankakee River, Downstream (indicator) 5.4 miles NE BD-25 Kankakee River Upstream (control) 9.6 miles E BD-57 Circulating Water Blowdown Discharge (indicator) 5.4 miles E B-1

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2014 Location Location Description Distance & Direction From Site H. Food Products Quadrant 1 Clark Farm 3.8 miles ENE Quadrant 2 W.F. Soltwisch 4.5 miles SSE Quadrant 3 Terri Schultz 4.8 miles SSW Quadrant 4 Bruce Sinkular 1.9 miles NNW Control Gorman Farm 9.0 miles NE I. Environmental Dosimetry - OSLD Inner Ring BD-101-3 and -4 0.5 miles N BD-102-1 and -2 1.1 miles NNE BD-103-1 and -2 1.0 mile NE BD-104-1 and -2 0.7 miles ENE BD-105-1 and -2 2.2 miles E BD-106-1 and -2 2.5 miles ESE BD-107-1 and -2 3.2 miles SE BD-108-1 and -2 3.2 miles SSE BD-109-1 and -2 3.8 miles S BD-110-1 and -2 2.8 miles SSW BD-111a-1 and -2 1.4 miles SW BD-112-1 and -2 0.7 miles WSW BD-113a-1 and -2 0.5 miles W BD-114-1 and -2 0.4 miles WNW BD-115-1 and -2 0.3 miles NW BD-116-1 0.4 miles NNW BD-116-2 0.5 miles NNW Outer Ring BD-201-1 and -2 4.2 miles N BD-202-1 and -2 4.8 miles NNE BD-203-1 and -2 4.9 miles NE BD-204-1 and -2 4.3 miles ENE BD-205-1 and -2 4.0 miles E BD-206-1 and -2 4.5 miles ESE BD-207-1 and -2 4.5 miles SE BD-208-1 and -2 4.5 miles SSE BD-209-1 and -2 4.8 miles S BD-210-1 and -2 5.3 miles SSW BD-211-1 and -2 4.8 miles SW BD-212-3 and -4 5.0 miles WSW BD-213-3 and -4 4.8 miles W BD-214-1 and -2 4.3 miles WNW BD-215-1 and -2 4.5 miles NW BD-216-1 and -2 4.0 miles NNW Other BD-02-1 and -2 Custer Park (indicator) 5.0 miles E BD-04-1 and -2 Essex (indicator) 4.8 miles SSE BD-05-1 and -2 Gardner (indicator) 5.5 miles SW BD-06-1 and -2 Godley (indicator) 0.5 miles WSW BD-19-1 and -2 Nearsite NW (indicator) 0.3 miles NW BD-20-1 and -2 Nearsite N (indicator) 0.6 miles N BD-21-1 and -2 Nearsite NE (indicator) 0.5 miles NE B-2

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2014 Location Location Description Distance & Direction From Site I. Environmental Dosimetry - OSLD (contd)

Control BD-03-1 and -2 13000 W. Road 6.2 miles ESE ISFSI BD-104-3 and -4 0.7 miles ENE BD-105-3 and -4 0.7 miles ENE BD-110-3 and -4 2.8 miles SSW Distance in Miles from the Braidwood Station ISFSI Pad, 2014 Sector Residence Miles (N) W 0.7 (P) WNW 0.7 (Q) NW 0.7 (R) NNW 0.7 Distance in Miles from the Braidwood Station Reactor Buildings, 2014 Sector Residence Livestock Milk Farm Miles Miles Miles (A) N 0.5 2.6 -

(B) NNE 0.9 - -

(C) NE 0.7 0.9 -

(D) ENE 0.8 3.3 -

(E) E 1.5 2.3 -

(F) ESE 2.2 2.3 -

(G) SE 2.7 2.7 -

(H) SSE 4.5 - -

(J) S 4.2 4.8 -

(K) SSW 1.3 5.3 5.5 (L) SW 0.4 1.2 -

(M) WSW 0.5 - -

(N) W 0.4 1.6 -

(P) WNW 0.4 - -

(Q) NW 0.4 - -

(R) NNW 0.4 - -

B-3

TABLE B-2: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Braidwood Station, 2014 Sample Medium Analysis Sampling Method Analytical Procedure Number Surface Water Gamma Spectroscopy Monthly composite TBE, TBE-2007 Gamma emitting radioisotope analysis from weekly grab samples.

Surface Water Gross Beta Monthly composite TBE, TBE-2008 Gross Alpha and/or Gross Beta activity in from weekly grab various matrices samples.

Surface Water Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquid from weekly grab scintillation samples.

Surface Water Nickel-63 Monthly composite TBE, TBE-2013 Radionickel activity in various matrices from weekly grab samples.

Drinking Water Gross Beta Monthly composite TBE, TBE-2008 Gross Alpha and/or Gross Beta activity in from weekly various matrices composite samples.

Drinking Water Gamma Spectroscopy Monthly composite TBE, TBE-2007 Gamma emitting radioisotope analysis from weekly composite samples.

Drinking Water Tritium Monthly composite TBE, TBE-2011 Tritium analysis in drinking water by liquid from weekly scintillation composite samples.

Drinking Water Iodine Monthly composite TBE, TBE-2031 Radioactive Iodine in drinking water from weekly composite samples.

Ground/Well Water Gamma Spectroscopy Quarterly grab TBE, TBE-2007 Gamma emitting radioisotope analysis samples.

Ground/Well Water Tritium Quarterly grab TBE, TBE-2011 Tritium analysis in drinking water by liquid samples. scintillation Fish Nickel-63 Semi-annual samples TBE, TBE-2013 Radionickel activity in various matrices collected via electroshocking or other techniques Fish Gamma Spectroscopy Samples collected TBE-2007 Gamma emitting radioisotope analysis twice annually via electro-shocking or other techniques Sediment Gamma Spectroscopy Semi-annual grab TBE, TBE-2007 Gamma emitting radioisotope analysis samples Sediment Nickel-63 Semi-annual grab TBE, TBE-2013 Radionickel activity in various matrices samples B-4

TABLE B-2: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Braidwood Station, 2014 Sample Analysis Sampling Method Analytical Procedure Number Medium Air Particulates Gross Beta One-week composite TBE, TBE-2008 Gross Alpha and/or gross beta activity in of continuous air various matrices sampling through glass fiber filter paper Air Particulates Gamma Spectroscopy Quarterly composite TBE, TBE-2007 Gamma emitting radioisotope analysis of each station Air Iodine Gamma Spectroscopy Weekly composite of TBE, TBE-2007 Gamma emitting radioisotope analysis continuous air sampling through charcoal filter Milk I-131 Bi-weekly grab TBE, TBE-2012 Radioiodine in various matrices sample May through October. Monthly all other times Milk Gamma Spectroscopy Bi-weekly grab TBE, TBE-2007 Gamma emitting radioisotope analysis sample May through October. Monthly all other times Food Products Gamma Spectroscopy Annual grab TBE, TBE-2007 Gamma emitting radioisotope analysis samples.

OSLD Optically Stimulated Quarterly OSLDs Landauer Incorporated Luminescence comprised of two Dosimetry Al2O3:C Landauer Incorporated elements.

B-5

Figure B-1 Inner Ring and Other OSLD Locations of the Braidwood Station, 2014 B-6

OSLD Locations Figure B-2 Fixed Air Sampling and Outer Ring OSLD Locations of the Braidwood Station, 2014 B-7

Figure B-3 Ingestion and Waterborne Exposure Pathway Sample Locations of the Braidwood Station, 2014 B-8

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY

Intentionally left blank Table C-I.1 CONCENTRATIONS OF GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 PERIOD 01/02/14 - 01/30/14 4.6 +/- 1.6 13.9 +/- 2.4 4.9 +/- 1.9 (1) 9.2 +/- 1.9 (1) (1) 02/19/14 - 02/27/14 5.1 +/- 1.3 13.3 +/- 2.5 (1) 9.4 +/- 2.0 (1) (1) 03/20/14 - 03/27/14 5.9 +/- 2.5 11.4 +/- 2.8 5.1 +/- 2.3 (1) 10.4 +/- 2.7 < 2.1 (1) 2.4 +/- 1.5 (1) 04/03/14 - 04/24/14 4.3 +/- 2.4 11.0 +/- 3.1 7.5 +/- 2.9 12.2 +/- 3.1 5.3 +/- 1.7 5.9 +/- 2.3 05/01/14 - 05/29/14 2.9 +/- 1.9 5.4 +/- 2.1 6.8 +/- 2.9 9.1 +/- 2.8 3.0 +/- 1.6 3.7 +/- 2.1 06/05/14 - 06/26/14 6.4 +/- 2.4 5.9 +/- 2.1 5.5 +/- 2.4 9.4 +/- 2.4 3.9 +/- 1.7 3.3 +/- 2.0 07/03/14 - 07/31/14 4.9 +/- 2.1 6.7 +/- 2.3 3.7 +/- 2.3 10.4 +/- 2.6 4.9 +/- 1.8 3.9 +/- 2.0 08/07/14 - 08/28/14 4.7 +/- 1.9 6.0 +/- 2.1 6.7 +/- 2.7 8.4 +/- 2.4 3.0 +/- 1.5 4.3 +/- 1.9 09/04/14 - 09/25/14 6.0 +/- 2.1 8.1 +/- 2.3 7.2 +/- 2.6 9.2 +/- 2.4 3.6 +/- 1.6 6.3 +/- 2.2 10/02/14 - 10/30/14 3.9 +/- 2.1 7.5 +/- 2.5 8.0 +/- 3.2 11.3 +/- 2.9 4.2 +/- 1.7 5.6 +/- 2.3 11/06/14 - 11/26/14 4.5 +/- 2.1 10.7 +/- 2.6 7.7 +/- 2.6 11.0 +/- 2.7 2.8 +/- 1.6 7.4 +/- 2.2 12/04/14 - 12/24/14 3.6 +/- 2.1 9.5 +/- 2.9 5.1 +/- 2.8 (1) 12.9 +/- 3.1 < 2.4 (1) 4.8 +/- 2.1 (1)

MEAN 4.7 +/- 2.0 9.1 +/- 5.9 6.2 +/- 2.8 10.2 +/- 2.8 3.8 +/- 1.8 4.8 +/- 3.1 Table C-I.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 PERIOD 01/02/14 - 03/27/14 221 +/- 129 < 185 (1) < 187 (1) < 191 < 188 (1) < 186 (1) 04/03/14 - 06/26/14 < 183 < 189 < 184 < 184 < 181 < 186 07/03/14 - 09/25/14 241 +/- 131 < 186 < 181 < 183 < 181 < 183 10/02/14 - 12/24/14 < 155 < 153 < 156 (1) < 154 < 186 (1) < 186 (1)

MEAN 231 +/- 28 - - - - -

Table C-I.3 CONCENTRATIONS OF NI-63 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-10 BD-25 PERIOD 01/02/14 - 01/30/14 < 19 < 19 (1) 02/19/14 - 02/27/14 < 16 < 16 (1) 03/20/14 - 03/27/14 < 15 < 18 04/03/14 - 04/24/14 < 18 < 18 05/01/14 - 05/29/14 < 14 < 14 06/05/14 - 06/26/14 < 16 < 16 07/03/14 - 07/31/14 < 14 < 14 08/07/14 - 08/28/14 < 14 < 15 09/04/14 - 09/25/14 < 15 < 17 10/02/14 - 10/30/14 < 16 < 16 11/06/14 - 11/26/14 < 18 < 18 12/04/14 - 12/24/14 < 16 < 18 MEAN - -

THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1

Table C-I.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-10 01/02/14 - 01/30/14 < 2 < 2 < 5 < 2 < 4 < 3 < 4 < 13 < 2 < 2 < 22 < 6 02/06/14 - 02/27/14 < 1 < 1 < 3 < 1 < 2 < 1 < 3 < 6 < 1 < 1 < 11 < 4 03/06/14 - 03/27/14 < 4 < 4 < 8 < 4 < 8 < 5 < 8 < 15 < 4 < 4 < 30 < 9 04/03/14 - 04/24/14 < 1 < 2 < 4 < 2 < 3 < 2 < 3 < 10 < 1 < 2 < 17 < 6 05/01/14 - 05/29/14 < 2 < 2 < 5 < 2 < 4 < 3 < 5 < 14 < 2 < 2 < 26 < 6 06/05/14 - 06/26/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 12 < 2 < 2 < 21 < 7 07/03/14 - 07/31/14 < 1 < 1 < 3 < 1 < 3 < 1 < 2 < 6 < 1 < 1 < 12 < 3 08/07/14 - 08/28/14 < 1 < 1 < 2 < 1 < 2 < 1 < 2 < 7 < 1 < 1 < 10 < 4 09/04/14 - 09/25/14 < 5 < 5 < 10 < 5 < 9 < 5 < 9 < 15 < 4 < 5 < 33 < 10 10/02/14 - 10/30/14 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 8 < 2 < 2 < 15 < 4 C-2 11/06/14 - 11/26/14 < 2 < 3 < 6 < 2 < 5 < 3 < 5 < 15 < 2 < 2 < 23 < 7 12/04/14 - 12/31/14 < 3 < 3 < 9 < 4 < 7 < 4 < 7 < 11 < 3 < 4 < 25 < 8 MEAN - - - - - - - - - - - -

BD-25 01/02/14 - 01/23/14 (1) < 1 < 2 < 3 < 1 < 3 < 2 < 3 < 13 < 1 < 1 < 19 < 5 02/19/14 - 02/27/14 (1) < 1 < 2 < 4 < 1 < 3 < 2 < 3 < 7 < 1 < 1 < 13 < 4 03/06/14 - 03/27/14 < 4 < 4 < 9 < 4 < 8 < 4 < 8 < 14 < 4 < 4 < 29 < 10 04/03/14 - 04/24/14 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 12 < 2 < 2 < 19 < 7 05/01/14 - 05/29/14 < 2 < 2 < 5 < 1 < 4 < 2 < 4 < 12 < 2 < 2 < 21 < 6 06/05/14 - 06/26/14 < 2 < 2 < 5 < 2 < 5 < 3 < 4 < 13 < 2 < 2 < 23 < 6 07/03/14 - 07/31/14 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 8 < 2 < 2 < 16 < 5 08/07/14 - 08/28/14 < 1 < 1 < 3 < 1 < 2 < 1 < 2 < 9 < 1 < 1 < 15 < 3 09/04/14 - 09/25/14 < 4 < 5 < 11 < 5 < 8 < 5 < 8 < 15 < 5 < 4 < 33 < 9 10/02/14 - 10/30/14 < 2 < 2 < 4 < 2 < 4 < 2 < 3 < 8 < 2 < 2 < 15 < 6 11/06/14 - 11/26/14 < 2 < 3 < 6 < 3 < 5 < 3 < 5 < 14 < 2 < 3 < 26 < 8 12/04/14 - 12/31/14 < 3 < 4 < 8 < 3 < 8 < 4 < 7 < 14 < 4 < 4 < 26 < 8 MEAN - - - - - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-I.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-38 01/02/14 - 01/16/14 (1) < 1 < 2 < 4 < 2 < 3 < 2 < 3 < 26 < 1 < 2 < 29 < 9 02/06/14 - 02/27/14 (1) - - - - - - - - - - - -

03/13/14 - 03/27/14 (1) < 4 < 4 < 11 < 5 < 9 < 4 < 8 < 13 < 4 < 4 < 30 < 10 04/03/14 - 04/24/14 < 1 < 1 < 3 < 1 < 2 < 1 < 2 < 8 < 1 < 1 < 13 < 4 05/01/14 - 05/29/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 13 < 2 < 2 < 23 < 7 06/05/14 - 06/26/14 < 1 < 2 < 4 < 1 < 3 < 2 < 3 < 10 < 1 < 2 < 16 < 5 07/03/14 - 07/31/14 < 2 < 3 < 6 < 2 < 5 < 3 < 5 < 12 < 2 < 2 < 22 < 6 08/07/14 - 08/28/14 < 1 < 1 < 2 < 1 < 1 < 1 < 1 < 7 < 1 < 1 < 10 < 3 09/04/14 - 09/25/14 < 4 < 5 < 11 < 5 < 11 < 5 < 10 < 15 < 4 < 6 < 34 < 11 10/02/14 - 10/30/14 < 1 < 2 < 4 < 2 < 3 < 2 < 3 < 8 < 1 < 1 < 15 < 4 C-3 11/06/14 - 11/26/14 < 1 < 1 < 3 < 1 < 3 < 2 < 2 < 9 < 1 < 1 < 14 < 4 12/04/14 - 12/24/14 (1) < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 14 < 2 < 2 < 23 < 7 MEAN - - - - - - - - - - - -

BD-40 01/02/14 - 01/30/14 < 2 < 3 < 6 < 2 < 5 < 3 < 5 < 12 < 2 < 3 < 24 < 7 02/06/14 - 02/27/14 < 2 < 3 < 6 < 3 < 5 < 3 < 5 < 13 < 2 < 3 < 23 < 8 03/06/14 - 03/27/14 < 4 < 4 < 9 < 4 < 9 < 4 < 7 < 15 < 4 < 4 < 31 < 9 04/03/14 - 04/24/14 < 2 < 2 < 6 < 2 < 4 < 2 < 4 < 13 < 2 < 2 < 22 < 7 05/01/14 - 05/29/14 < 2 < 3 < 6 < 4 < 6 < 3 < 5 < 14 < 2 < 3 < 23 < 8 06/05/14 - 06/26/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 13 < 2 < 2 < 20 < 6 07/03/14 - 07/31/14 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 8 < 2 < 2 < 15 < 4 08/07/14 - 08/28/14 < 1 < 1 < 3 < 1 < 2 < 1 < 2 < 11 < 1 < 1 < 15 < 5 09/04/14 - 09/25/14 < 5 < 4 < 7 < 3 < 8 < 5 < 9 < 15 < 4 < 5 < 27 < 10 10/02/14 - 10/30/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 10 < 2 < 2 < 18 < 7 11/06/14 - 11/26/14 < 1 < 1 < 3 < 1 < 3 < 1 < 2 < 10 < 1 < 1 < 16 < 5 12/04/14 - 12/31/14 < 4 < 5 < 10 < 4 < 10 < 5 < 8 < 15 < 4 < 5 < 34 < 12 MEAN - - - - - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-I.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-55 01/02/14 - 01/30/14 (1) - - - - - - - - - - - -

02/06/14 - 02/27/14 (1) - - - - - - - - - - - -

03/20/14 - 03/27/14 (1) < 2 < 2 < 5 < 2 < 4 < 3 < 5 < 11 < 2 < 2 < 20 < 6 04/03/14 - 04/24/14 < 1 < 2 < 4 < 1 < 3 < 2 < 3 < 10 < 1 < 1 < 16 < 5 05/01/14 - 05/29/14 < 2 < 3 < 7 < 3 < 5 < 3 < 4 < 14 < 2 < 2 < 27 < 9 06/05/14 - 06/26/14 < 2 < 2 < 4 < 2 < 3 < 2 < 4 < 11 < 2 < 2 < 18 < 6 07/03/14 - 07/31/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 9 < 2 < 2 < 18 < 6 08/07/14 - 08/28/14 < 1 < 1 < 2 < 1 < 2 < 1 < 2 < 10 < 1 < 1 < 13 < 4 09/04/14 - 09/25/14 < 4 < 4 < 8 < 4 < 8 < 4 < 8 < 15 < 4 < 4 < 27 < 10 10/02/14 - 10/30/14 < 2 < 2 < 4 < 2 < 4 < 2 < 3 < 9 < 2 < 2 < 16 < 5 C-4 11/06/14 - 11/26/14 < 1 < 1 < 3 < 1 < 2 < 1 < 2 < 9 < 1 < 1 < 13 < 5 12/04/14 - 12/24/14 (1) < 2 < 2 < 5 < 2 < 3 < 2 < 4 < 12 < 2 < 2 < 21 < 7 MEAN - - - - - - - - - - - -

BD-56 01/02/14 - 01/30/14 (1) - - - - - - - - - - - -

02/06/14 - 02/27/14 (1) - - - - - - - - - - - -

03/20/14 - 03/27/14 (1) < 3 < 3 < 6 < 3 < 5 < 3 < 5 < 13 < 3 < 3 < 23 < 8 04/03/14 - 04/24/14 < 1 < 1 < 3 < 1 < 2 < 2 < 2 < 13 < 1 < 1 < 17 < 5 05/01/14 - 05/29/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 13 < 2 < 2 < 22 < 6 06/05/14 - 06/26/14 < 2 < 3 < 7 < 2 < 5 < 3 < 5 < 15 < 2 < 3 < 27 < 8 07/03/14 - 07/31/14 < 2 < 2 < 5 < 2 < 4 < 2 < 3 < 9 < 2 < 2 < 17 < 6 08/07/14 - 08/28/14 < 1 < 1 < 2 < 1 < 2 < 1 < 1 < 8 < 1 < 1 < 11 < 3 09/04/14 - 09/25/14 < 4 < 5 < 10 < 4 < 8 < 5 < 9 < 14 < 5 < 4 < 27 < 12 10/02/14 - 10/30/14 < 2 < 3 < 6 < 2 < 5 < 3 < 5 < 11 < 2 < 2 < 23 < 8 11/06/14 - 11/26/14 < 1 < 2 < 3 < 1 < 3 < 2 < 3 < 12 < 1 < 1 < 17 < 4 12/04/14 - 12/24/14 (1) < 2 < 2 < 4 < 2 < 4 < 2 < 4 < 12 < 2 < 2 < 21 < 5 MEAN - - - - - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-II.1 CONCENTRATIONS OF GROSS BETA IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-22 PERIOD 01/02/14 - 01/30/14 4.1 +/- 2.1 01/30/14 - 02/27/14 3.9 +/- 2.0 02/27/14 - 04/03/14 3.2 +/- 1.8 04/03/14 - 05/01/14 3.5 +/- 1.6 05/01/14 - 05/29/14 4.5 +/- 1.7 05/29/14 - 07/03/14 4.0 +/- 1.4 07/03/14 - 07/31/14 3.9 +/- 1.6 07/31/14 - 08/28/14 3.4 +/- 1.7 08/28/14 - 10/02/14 3.9 +/- 1.5 10/02/14 - 10/30/14 < 2.2 10/30/14 - 11/26/14 2.7 +/- 1.6 11/26/14 - 12/31/14 4.2 +/- 1.5 MEAN 3.8 +/- 1.0 Table C-II.2 CONCENTRATIONS OF TRITIUM IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-22 PERIOD 01/02/14 - 01/30/14 1410 +/- 193 01/30/14 - 02/27/14 1200 +/- 176 02/27/14 - 04/03/14 369 +/- 119 04/03/14 - 05/01/14 1140 +/- 176 05/01/14 - 05/29/14 223 +/- 111 05/29/14 - 07/03/14 235 +/- 118 07/03/14 - 07/31/14 555 +/- 145 07/31/14 - 08/28/14 431 +/- 139 08/28/14 - 10/02/14 279 +/- 124 10/02/14 - 10/30/14 < 159 10/30/14 - 11/26/14 635 +/- 153 11/26/14 - 12/31/14 287 +/- 129 MEAN 615 +/- 864 Table C-II.3 CONCENTRATIONS OF I-131 IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-22 PERIOD 01/02/14 - 01/30/14 < 1.0 01/30/14 - 02/27/14 < 0.6 02/27/14 - 04/03/14 < 0.7 04/03/14 - 05/01/14 < 0.8 05/01/14 - 05/29/14 < 0.5 05/29/14 - 07/03/14 < 0.7 07/03/14 - 07/31/14 < 0.5 07/31/14 - 08/28/14 < 0.5 08/28/14 - 10/02/14 < 0.7 10/02/14 - 10/30/14 < 0.4 10/30/14 - 11/26/14 < 0.8 11/26/14 - 12/31/14 < 1.0 MEAN -

THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-5

Table C-II.4 CONCENTRATIONS OF GAMMA EMITTERS IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 BD-22 01/02/14 - 01/30/14 < 1 < 1 < 2 < 1 < 2 < 1 < 2 < 1 < 1 < 14 < 4 01/30/14 - 02/27/14 < 1 < 2 < 4 < 1 < 3 < 2 < 3 < 1 < 1 < 18 < 6 02/27/14 - 04/03/14 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 2 < 2 < 15 < 5 04/03/14 - 05/01/14 < 1 < 2 < 4 < 1 < 3 < 2 < 3 < 1 < 2 < 21 < 7 05/01/14 - 05/29/14 < 3 < 3 < 8 < 4 < 6 < 3 < 6 < 4 < 4 < 23 < 9 05/29/14 - 07/03/14 < 2 < 2 < 4 < 1 < 3 < 2 < 3 < 1 < 2 < 16 < 5 07/03/14 - 07/31/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 2 < 2 < 17 < 6 07/31/14 - 08/28/14 < 1 < 2 < 3 < 1 < 3 < 2 < 3 < 1 < 1 < 20 < 6 08/28/14 - 10/02/14 < 1 < 2 < 4 < 1 < 3 < 2 < 3 < 1 < 1 < 20 < 6 10/02/14 - 10/30/14 < 1 < 1 < 2 < 1 < 1 < 1 < 1 < 1 < 1 < 17 < 4 10/30/14 - 11/26/14 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 2 < 2 < 22 < 6 11/26/14 - 12/31/14 < 1 < 1 < 2 < 1 < 2 < 1 < 2 < 1 < 1 < 9 < 3 C-6 MEAN - - - - - - - - - - -

Table C-III.1 CONCENTRATIONS OF TRITIUM IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-13 BD-34 BD-35 BD-36 BD-37 BD-50 BD-51 BD-54 PERIOD 01/09/14 - 01/09/14 < 168 < 166 < 164 < 168 < 164 < 164 < 166 (1) 04/10/14 - 04/10/14 < 161 < 158 < 160 < 161 < 163 < 161 < 161 < 177 07/10/14 - 07/10/14 < 178 < 172 < 172 < 174 < 176 < 174 < 175 < 194 10/10/14 - 10/10/14 < 184 < 185 < 186 < 187 < 189 < 185 < 185 (1)

MEAN - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-7

Table C-III.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-13 01/09/14 - 01/09/14 < 3 < 4 < 7 < 2 < 6 < 3 < 6 < 14 < 3 < 3 < 23 < 7 04/10/14 - 04/10/14 < 4 < 5 < 9 < 4 < 10 < 6 < 7 < 14 < 4 < 5 < 32 < 9 07/10/14 - 07/10/14 < 4 < 4 < 9 < 4 < 8 < 4 < 7 < 9 < 4 < 4 < 22 < 7 10/10/14 - 10/10/14 < 5 < 4 < 11 < 4 < 12 < 6 < 10 < 13 < 5 < 6 < 35 < 9 MEAN - - - - - - - - - - - -

BD-34 01/09/14 - 01/09/14 < 2 < 2 < 6 < 2 < 4 < 2 < 4 < 13 < 2 < 3 < 24 < 6 04/10/14 - 04/10/14 < 5 < 4 < 13 < 5 < 10 < 5 < 9 < 13 < 4 < 5 < 27 < 11 07/10/14 - 07/10/14 < 5 < 6 < 13 < 7 < 14 < 8 < 9 < 11 < 7 < 6 < 31 < 8 10/10/14 - 10/10/14 < 4 < 4 < 11 < 6 < 10 < 6 < 9 < 13 < 5 < 5 < 28 < 7 MEAN - - - - - - - - - - - -

BD-35 01/09/14 - 01/09/14 < 2 < 2 < 4 < 2 < 4 < 3 < 4 < 9 < 2 < 2 < 19 < 5 04/10/14 - 04/10/14 < 5 < 5 < 12 < 6 < 11 < 6 < 10 < 15 < 4 < 6 < 37 < 13 C-8 07/10/14 - 07/10/14 < 6 < 8 < 16 < 8 < 13 < 7 < 14 < 15 < 7 < 9 < 40 < 11 10/10/14 - 10/10/14 < 6 < 6 < 12 < 6 < 10 < 7 < 9 < 12 < 6 < 6 < 32 < 11 MEAN - - - - - - - - - - - -

BD-36 01/09/14 - 01/09/14 < 3 < 2 < 4 < 2 < 4 < 2 < 4 < 11 < 2 < 2 < 22 < 5 04/10/14 - 04/10/14 < 5 < 5 < 11 < 6 < 11 < 6 < 9 < 15 < 5 < 5 < 34 < 8 07/10/14 - 07/10/14 < 5 < 4 < 12 < 4 < 10 < 5 < 7 < 9 < 5 < 5 < 28 < 7 10/10/14 - 10/10/14 < 3 < 3 < 6 < 4 < 7 < 4 < 7 < 9 < 3 < 4 < 25 < 7 MEAN - - - - - - - - - - - -

BD-37 01/09/14 - 01/09/14 < 2 < 3 < 5 < 2 < 3 < 3 < 4 < 12 < 2 < 2 < 23 < 6 04/10/14 - 04/10/14 < 5 < 4 < 11 < 5 < 10 < 5 < 10 < 15 < 5 < 5 < 29 < 10 07/10/14 - 07/10/14 < 6 < 5 < 11 < 6 < 12 < 7 < 11 < 10 < 6 < 7 < 28 < 8 10/10/14 - 10/10/14 < 4 < 4 < 9 < 4 < 9 < 5 < 8 < 10 < 4 < 4 < 26 < 7 MEAN - - - - - - - - - - - -

Table C-III.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-50 01/09/14 - 01/09/14 < 2 < 2 < 3 < 2 < 4 < 3 < 4 < 12 < 2 < 2 < 24 < 6 04/10/14 - 04/10/14 < 4 < 3 < 7 < 4 < 6 < 4 < 6 < 11 < 4 < 4 < 23 < 8 07/10/14 - 07/10/14 < 7 < 9 < 15 < 7 < 15 < 9 < 14 < 15 < 9 < 10 < 44 < 10 10/10/14 - 10/10/14 < 5 < 5 < 11 < 5 < 10 < 5 < 8 < 10 < 5 < 5 < 24 < 9 MEAN - - - - - - - - - - - -

BD-51 01/09/14 - 01/09/14 < 3 < 3 < 6 < 3 < 5 < 3 < 6 < 15 < 3 < 3 < 28 < 10 04/10/14 - 04/10/14 < 4 < 5 < 10 < 5 < 11 < 5 < 8 < 14 < 4 < 4 < 34 < 8 07/10/14 - 07/10/14 < 5 < 6 < 11 < 5 < 10 < 7 < 8 < 9 < 6 < 6 < 28 < 7 10/10/14 - 10/10/14 < 4 < 3 < 7 < 3 < 5 < 4 < 7 < 9 < 3 < 4 < 22 < 6 MEAN - - - - - - - - - - - -

BD-54 01/09/14 - 01/09/14 (1) - - - - - - - - - - - -

C-9 04/10/14 - 04/10/14 < 5 < 5 < 11 < 5 < 11 < 5 < 9 < 14 < 4 < 5 < 32 < 9 09/04/14 - 09/04/14 < 3 < 4 < 9 < 3 < 6 < 4 < 7 < 11 < 3 < 4 < 23 < 7 10/10/14 - 10/10/14 (1) - - - - - - - - - - - -

MEAN - - - - - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-IV.1 CONCENTRATIONS OF NICKEL-63 AND GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Ni-63 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-25 Golden Redhorse 05/07/14 < 204 < 46 < 62 < 111 < 50 < 107 < 66 < 107 < 366 < 46 < 55 < 592 < 157 Smallmouth Bass 05/07/14 < 176 < 79 < 69 < 173 < 74 < 151 < 55 < 130 < 447 < 54 < 80 < 812 < 266 Golden Redhorse 10/07/14 < 154 < 37 < 39 < 90 < 30 < 89 < 49 < 70 < 156 < 36 < 37 < 327 < 76 Smallmouth Bass 10/07/14 < 155 < 46 < 45 < 102 < 55 < 105 < 49 < 85 < 181 < 41 < 50 < 335 < 96 MEAN - - - - - - - - - - - - -

BD-28 Golden Redhorse 05/07/14 < 182 < 61 < 64 < 171 < 56 < 128 < 62 < 105 < 423 < 57 < 61 < 740 < 141 Common Carp 05/07/14 < 233 < 57 < 65 < 146 < 30 < 122 < 64 < 124 < 346 < 56 < 59 < 592 < 182 Golden Redhorse 10/07/14 < 176 < 39 < 43 < 96 < 34 < 98 < 50 < 76 < 160 < 36 < 41 < 295 < 120 C-10 Shorthead redhorse 10/07/14 < 166 < 25 < 26 < 60 < 24 < 51 < 28 < 47 < 114 < 22 < 24 < 232 < 54 MEAN - - - - - - - - - - - - -

BD-41 Largemouth Bass 05/07/14 < 150 < 72 < 68 < 169 < 64 < 138 < 87 < 126 < 463 < 71 < 78 < 887 < 203 Common Carp 05/07/14 < 173 < 48 < 55 < 142 < 57 < 116 < 70 < 108 < 292 < 46 < 62 < 560 < 69 Largemouth Bass 10/07/14 < 142 < 22 < 26 < 54 < 23 < 53 < 28 < 45 < 108 < 21 < 23 < 207 < 66 Common Carp 10/07/14 < 164 < 22 < 24 < 54 < 21 < 46 < 27 < 43 < 114 < 22 < 23 < 207 < 56 MEAN - - - - - - - - - - - - -

Table C-V.1 CONCENTRATIONS OF NICKEL-63 AND GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMA SITE COLLECTION Ni-63 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-10 05/01/14 < 213 < 103 < 110 < 233 < 105 < 180 < 127 < 195 < 94 < 140 < 882 < 218 10/02/14 < 256 < 71 < 84 < 183 < 63 < 171 < 105 < 154 < 72 162 +/- 106 < 980 < 209 MEAN - - - - - - - - - - - -

BD-25 05/01/14 < 197 < 49 < 47 < 113 < 44 < 98 < 47 < 86 < 38 < 54 < 421 < 102 10/02/14 < 257 < 78 < 91 < 154 < 59 < 137 < 102 < 161 < 80 < 99 < 1082 < 162 MEAN - - - - - - - - - - - -

BD-57 05/01/14 < 233 < 43 < 44 < 94 < 40 < 102 < 48 < 77 < 39 < 47 < 342 < 122 10/02/14 < 257 < 59 < 70 < 176 < 55 < 166 < 87 < 126 < 58 104 +/- 56 < 692 < 260 C-11 MEAN - - - - - - - - - - - -

Table C-VI.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP III -

CONTROL COLLECTION GROUP I - NEAR FIELD GROUP II - FAR FIELD LOCATION PERIOD BD-06 BD-19 BD-20 BD-21 BD-02 BD-04 BD-05 BD-03 01/02/14 - 01/09/14 25 +/- 5 27 +/- 5 25 +/- 5 26 +/- 5 22 +/- 4 24 +/- 5 26 +/- 5 26 +/- 5 01/09/14 - 01/16/14 21 +/- 5 21 +/- 5 20 +/- 5 21 +/- 5 22 +/- 5 24 +/- 5 21 +/- 5 22 +/- 5 01/16/14 - 01/23/14 18 +/- 4 21 +/- 5 20 +/- 5 18 +/- 4 18 +/- 4 11 +/- 4 18 +/- 4 14 +/- 4 01/23/14 - 01/30/14 17 +/- 4 16 +/- 4 16 +/- 4 16 +/- 4 20 +/- 4 17 +/- 4 16 +/- 4 14 +/- 4 01/30/14 - 02/06/14 27 +/- 4 26 +/- 5 23 +/- 4 28 +/- 5 25 +/- 5 24 +/- 4 25 +/- 5 25 +/- 5 02/06/14 - 02/13/14 24 +/- 5 23 +/- 4 26 +/- 5 26 +/- 5 23 +/- 4 33 +/- 5 23 +/- 4 31 +/- 5 02/13/14 - 02/19/14 29 +/- 5 22 +/- 5 29 +/- 5 26 +/- 5 28 +/- 5 30 +/- 6 31 +/- 6 31 +/- 6 02/19/14 - 02/27/14 25 +/- 4 23 +/- 4 20 +/- 4 23 +/- 4 19 +/- 4 24 +/- 4 24 +/- 4 23 +/- 4 02/27/14 - 03/06/14 20 +/- 4 22 +/- 5 22 +/- 5 23 +/- 5 25 +/- 5 19 +/- 4 22 +/- 5 21 +/- 5 03/06/14 - 03/13/14 21 +/- 5 18 +/- 5 18 +/- 5 20 +/- 5 21 +/- 5 (1) 22 +/- 5 19 +/- 5 18 +/- 5 03/13/14 - 03/20/14 15 +/- 4 11 +/- 4 15 +/- 4 14 +/- 4 13 +/- 4 14 +/- 4 19 +/- 4 13 +/- 4 03/20/14 - 03/27/14 18 +/- 4 16 +/- 4 17 +/- 4 15 +/- 4 19 +/- 4 16 +/- 4 24 +/- 5 17 +/- 4 03/27/14 - 04/03/14 15 +/- 4 15 +/- 4 16 +/- 4 17 +/- 4 18 +/- 4 16 +/- 4 13 +/- 4 15 +/- 4 04/03/14 - 04/10/14 15 +/- 4 16 +/- 4 17 +/- 4 16 +/- 4 17 +/- 4 15 +/- 4 18 +/- 4 17 +/- 4 04/10/14 - 04/17/14 17 +/- 4 14 +/- 4 15 +/- 4 17 +/- 4 14 +/- 4 11 +/- 4 15 +/- 4 14 +/- 4 04/17/14 - 04/24/14 18 +/- 4 19 +/- 5 16 +/- 4 17 +/- 4 16 +/- 4 19 +/- 4 19 +/- 4 16 +/- 4 04/24/14 - 05/01/14 9 +/- 3 10 +/- 4 9 +/- 3 13 +/- 4 10 +/- 4 8 +/- 3 9 +/- 4 9 +/- 4 05/01/14 - 05/08/14 11 +/- 4 9 +/- 4 11 +/- 4 11 +/- 4 13 +/- 4 11 +/- 4 11 +/- 4 9 +/- 4 05/08/14 - 05/15/14 14 +/- 4 9 +/- 4 13 +/- 4 12 +/- 4 11 +/- 4 13 +/- 4 (1) 9 +/- 4 8 +/- 4 05/15/14 - 05/22/14 16 +/- 4 11 +/- 4 14 +/- 4 16 +/- 4 13 +/- 4 15 +/- 4 15 +/- 4 17 +/- 4 05/22/14 - 05/29/14 15 +/- 4 12 +/- 4 14 +/- 4 13 +/- 4 14 +/- 4 13 +/- 4 15 +/- 4 14 +/- 4 05/29/14 - 06/05/14 8 +/- 4 13 +/- 4 10 +/- 4 12 +/- 4 11 +/- 4 10 +/- 4 11 +/- 4 12 +/- 4 06/05/14 - 06/12/14 18 +/- 4 15 +/- 4 12 +/- 4 13 +/- 4 13 +/- 4 13 +/- 4 14 +/- 4 15 +/- 4 06/12/14 - 06/19/14 15 +/- 4 15 +/- 4 19 +/- 5 17 +/- 4 14 +/- 4 16 +/- 4 18 +/- 4 20 +/- 4 06/19/14 - 06/26/14 14 +/- 4 12 +/- 4 14 +/- 4 (1) 11 +/- 4 13 +/- 4 12 +/- 4 13 +/- 4 (1) 06/26/14 - 07/03/14 8 +/- 4 9 +/- 4 12 +/- 4 10 +/- 4 12 +/- 4 (1) 9 +/- 4 10 +/- 4 10 +/- 4 07/03/14 - 07/10/14 14 +/- 4 13 +/- 4 11 +/- 4 14 +/- 4 12 +/- 4 12 +/- 4 (1) 13 +/- 4 11 +/- 4 07/10/14 - 07/17/14 12 +/- 4 12 +/- 4 13 +/- 4 15 +/- 4 16 +/- 4 11 +/- 4 11 +/- 4 49 +/- 6 (1) 07/17/14 - 07/24/14 23 +/- 5 20 +/- 4 26 +/- 5 20 +/- 4 20 +/- 5 22 +/- 5 27 +/- 5 (1) 07/24/14 - 07/31/14 19 +/- 4 16 +/- 4 18 +/- 4 16 +/- 4 16 +/- 4 16 +/- 4 17 +/- 4 13 +/- 4 07/31/14 - 08/07/14 28 +/- 5 26 +/- 5 32 +/- 5 26 +/- 5 26 +/- 5 28 +/- 5 31 +/- 5 23 +/- 4 08/07/14 - 08/14/14 16 +/- 4 17 +/- 4 17 +/- 4 17 +/- 4 18 +/- 4 17 +/- 4 16 +/- 4 19 +/- 4 08/14/14 - 08/21/14 24 +/- 5 24 +/- 5 20 +/- 4 25 +/- 5 26 +/- 5 21 +/- 5 23 +/- 5 25 +/- 5 08/21/14 - 08/28/14 15 +/- 4 18 +/- 4 15 +/- 4 15 +/- 4 14 +/- 4 15 +/- 4 18 +/- 4 18 +/- 4 08/28/14 - 09/04/14 22 +/- 5 19 +/- 5 24 +/- 5 19 +/- 5 15 +/- 4 18 +/- 4 20 +/- 5 21 +/- 5 09/04/14 - 09/11/14 15 +/- 4 14 +/- 4 16 +/- 4 16 +/- 4 17 +/- 4 16 +/- 4 17 +/- 4 16 +/- 4 09/11/14 - 09/18/14 14 +/- 4 18 +/- 4 17 +/- 4 15 +/- 4 15 +/- 4 17 +/- 4 16 +/- 4 15 +/- 4 09/18/14 - 09/25/14 22 +/- 5 19 +/- 4 23 +/- 5 24 +/- 5 22 +/- 5 20 +/- 4 20 +/- 4 26 +/- 5 09/25/14 - 10/02/14 17 +/- 4 24 +/- 5 21 +/- 5 19 +/- 5 24 +/- 5 23 +/- 5 23 +/- 5 22 +/- 5 10/02/14 - 10/09/14 11 +/- 4 11 +/- 4 14 +/- 4 10 +/- 4 13 +/- 4 8 +/- 4 14 +/- 4 11 +/- 4 10/09/14 - 10/16/14 14 +/- 4 12 +/- 4 13 +/- 4 16 +/- 4 13 +/- 4 12 +/- 4 11 +/- 4 14 +/- 4 10/16/14 - 10/23/14 10 +/- 4 10 +/- 4 11 +/- 4 13 +/- 4 11 +/- 4 14 +/- 4 12 +/- 4 14 +/- 4 10/23/14 - 10/30/14 20 +/- 4 18 +/- 4 21 +/- 5 21 +/- 4 17 +/- 4 20 +/- 4 20 +/- 4 20 +/- 4 10/30/14 - 11/06/14 15 +/- 4 19 +/- 4 18 +/- 4 13 +/- 4 15 +/- 4 19 +/- 4 18 +/- 4 15 +/- 4 11/06/14 - 11/13/14 14 +/- 4 12 +/- 4 17 +/- 4 16 +/- 4 16 +/- 4 14 +/- 4 15 +/- 4 17 +/- 4 11/13/14 - 11/20/14 16 +/- 4 19 +/- 4 18 +/- 4 18 +/- 4 19 +/- 4 16 +/- 4 16 +/- 4 18 +/- 4 11/20/14 - 11/26/14 19 +/- 5 22 +/- 5 25 +/- 5 24 +/- 5 25 +/- 5 26 +/- 5 19 +/- 5 27 +/- 5 (1) 11/26/14 - 12/04/14 29 +/- 5 26 +/- 4 27 +/- 4 22 +/- 4 28 +/- 4 27 +/- 4 26 +/- 4 28 +/- 4 12/04/14 - 12/11/14 26 +/- 5 23 +/- 5 28 +/- 5 32 +/- 5 26 +/- 5 21 +/- 5 25 +/- 5 28 +/- 5 12/11/14 - 12/18/14 29 +/- 5 24 +/- 5 28 +/- 5 25 +/- 5 26 +/- 5 22 +/- 5 27 +/- 5 27 +/- 5 12/18/14 - 12/24/14 23 +/- 5 20 +/- 5 23 +/- 5 18 +/- 5 22 +/- 5 19 +/- 5 18 +/- 5 21 +/- 5 12/24/14 - 12/31/14 20 +/- 4 22 +/- 4 26 +/- 5 21 +/- 4 17 +/- 4 21 +/- 4 17 +/- 4 22 +/- 4 MEAN 18 +/- 11 17 +/- 10 19 +/- 11 18 +/- 10 18 +/- 10 18 +/- 11 18 +/- 11 19 +/- 15 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-12

Table C-VI.2 MONTHLY AND YEARLY VALUES OF GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP I - NEAR FIELD LOCATIONS GROUP II - FAR FIELD LOCATIONS GROUP III - CONTROL LOCATIONS COLLECTION MIN MAX MEAN +/- COLLECTION MIN MAX MEAN +/- COLLECTION MIN MAX MEAN +/-

PERIOD 2SD PERIOD 2SD PERIOD 2SD 01/02/14 - 01/30/14 16 27 21 +/- 7 01/02/14 - 01/30/14 11 26 20 +/- 8 01/02/14 - 01/30/14 14 26 19 +/- 12 01/30/14 - 02/27/14 20 29 25 +/- 5 01/30/14 - 02/27/14 19 33 26 +/- 8 01/30/14 - 02/27/14 23 31 27 +/- 8 02/27/14 - 04/03/14 11 23 17 +/- 6 02/27/14 - 04/03/14 13 25 19 +/- 8 02/27/14 - 04/03/14 13 21 17 +/- 6 04/03/14 - 05/01/14 9 19 15 +/- 7 04/03/14 - 05/01/14 8 19 14 +/- 8 04/03/14 - 05/01/14 9 17 14 +/- 7 05/01/14 - 05/29/14 9 16 13 +/- 4 05/01/14 - 05/29/14 9 15 13 +/- 4 05/01/14 - 05/29/14 8 17 12 +/- 8 05/29/14 - 07/03/14 8 19 13 +/- 6 05/29/14 - 07/03/14 9 18 12 +/- 5 05/29/14 - 07/03/14 10 20 14 +/- 8 07/03/14 - 07/31/14 11 26 16 +/- 9 07/03/14 - 07/31/14 11 27 16 +/- 10 07/03/14 - 07/31/14 11 49 24 +/- 43 07/31/14 - 09/04/14 15 32 21 +/- 10 07/31/14 - 09/04/14 14 31 20 +/- 11 07/31/14 - 09/04/14 18 25 21 +/- 6 09/04/14 - 10/02/14 14 24 18 +/- 7 09/04/14 - 10/02/14 15 24 19 +/- 6 09/04/14 - 10/02/14 15 26 20 +/- 10 10/02/14 - 10/30/14 10 21 14 +/- 8 10/02/14 - 10/30/14 8 20 14 +/- 7 10/02/14 - 10/30/14 11 20 14 +/- 8 C-13 10/30/14 - 12/04/14 12 29 19 +/- 10 10/30/14 - 12/04/14 14 28 20 +/- 10 10/30/14 - 12/04/14 15 28 21 +/- 12 12/04/14 - 12/31/14 18 32 24 +/- 8 12/04/14 - 12/31/14 17 27 22 +/- 7 12/04/14 - 12/31/14 21 28 25 +/- 7 01/02/14 - 12/31/14 8 32 18 +/- 11 01/02/14 - 12/31/14 8 33 18 +/- 11 01/02/14 - 12/31/14 8 49 19 +/- 15

Table C-VI.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 BD-02 01/02/14 - 04/03/14 < 2 < 2 < 8 < 3 < 6 < 3 < 6 < 3 < 2 < 40 < 14 04/03/14 - 07/03/14 < 2 < 2 < 6 < 3 < 6 < 3 < 5 < 3 < 3 < 32 < 6 07/03/14 - 10/02/14 < 2 < 3 < 8 < 2 < 6 < 3 < 5 < 2 < 2 < 59 < 23 10/02/14 - 12/31/14 < 4 < 5 < 12 < 4 < 10 < 5 < 8 < 4 < 3 < 50 < 23 MEAN - - - - - - - - - - -

BD-03 01/02/14 - 04/03/14 < 4 < 4 < 7 < 2 < 8 < 3 < 6 < 3 < 4 < 42 < 10 04/03/14 - 07/03/14 < 4 < 5 < 10 < 3 < 9 < 4 < 8 < 4 < 4 < 49 < 16 07/03/14 - 10/02/14 < 3 < 3 < 7 < 3 < 8 < 3 < 6 < 3 < 3 < 60 < 14 10/02/14 - 12/31/14 < 3 < 3 < 9 < 2 < 7 < 4 < 6 < 3 < 3 < 47 < 25 MEAN - - - - - - - - - - -

BD-04 01/02/14 - 04/03/14 < 4 < 4 < 8 < 2 < 9 < 3 < 6 < 4 < 4 < 46 < 18 04/03/14 - 07/03/14 < 4 < 4 < 9 < 4 < 5 < 4 < 6 < 4 < 3 < 49 < 20 C-14 07/03/14 - 10/02/14 < 3 < 3 < 7 < 3 < 9 < 4 < 6 < 3 < 2 < 82 < 30 10/02/14 - 12/31/14 < 3 < 4 < 8 < 3 < 9 < 5 < 8 < 4 < 3 < 61 < 21 MEAN - - - - - - - - - - -

BD-05 01/02/14 - 04/03/14 < 2 < 3 < 9 < 4 < 7 < 4 < 7 < 3 < 2 < 32 < 18 04/03/14 - 07/03/14 < 2 < 3 < 6 < 2 < 4 < 2 < 5 < 2 < 2 < 30 < 10 07/03/14 - 10/02/14 < 2 < 2 < 7 < 2 < 3 < 3 < 5 < 2 < 2 < 52 < 21 10/02/14 - 12/31/14 < 2 < 2 < 4 < 3 < 5 < 3 < 5 < 2 < 2 < 40 < 15 MEAN - - - - - - - - - - -

BD-06 01/02/14 - 04/03/14 < 3 < 3 < 9 < 3 < 8 < 4 < 7 < 4 < 4 < 39 < 15 04/03/14 - 07/03/14 < 4 < 3 < 8 < 4 < 8 < 4 < 6 < 3 < 2 < 38 < 14 07/03/14 - 10/02/14 < 3 < 4 < 5 < 3 < 6 < 4 < 6 < 3 < 3 < 89 < 32 10/02/14 - 12/31/14 < 2 < 2 < 6 < 2 < 5 < 2 < 4 < 2 < 2 < 38 < 10 MEAN - - - - - - - - - - -

Table C-VI.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 BD-19 01/02/14 - 04/03/14 < 4 < 4 < 10 < 2 < 8 < 5 < 7 < 4 < 4 < 47 < 15 04/03/14 - 07/03/14 < 4 < 5 < 10 < 4 < 8 < 4 < 5 < 4 < 3 < 49 < 18 07/03/14 - 10/02/14 < 2 < 2 < 7 < 1 < 6 < 2 < 4 < 2 < 2 < 63 < 17 10/02/14 - 12/31/14 < 2 < 3 < 7 < 2 < 3 < 3 < 5 < 2 < 3 < 40 < 15 MEAN - - - - - - - - - - -

BD-20 01/02/14 - 04/03/14 < 3 < 3 < 6 < 2 < 7 < 4 < 4 < 4 < 3 < 37 < 15 04/03/14 - 07/03/14 < 4 < 5 < 11 < 4 < 8 < 5 < 9 < 4 < 3 < 34 < 20 07/03/14 - 10/02/14 < 3 < 4 < 10 < 3 < 6 < 4 < 7 < 4 < 3 < 107 < 27 10/02/14 - 12/31/14 < 2 < 3 < 7 < 2 < 5 < 3 < 5 < 2 < 2 < 46 < 13 MEAN - - - - - - - - - - -

BD-21 01/02/14 - 04/03/14 < 3 < 4 < 8 < 3 < 7 < 4 < 7 < 3 < 3 < 44 < 19 C-15 04/03/14 - 07/03/14 < 2 < 2 < 6 < 2 < 9 < 4 < 6 < 3 < 2 < 32 < 9 07/03/14 - 10/02/14 < 2 < 3 < 7 < 1 < 8 < 3 < 5 < 2 < 2 < 68 < 21 10/02/14 - 12/31/14 < 2 < 2 < 6 < 2 < 5 < 3 < 5 < 3 < 2 < 47 < 12 MEAN - - - - - - - - - - -

Table C-VII.1 CONCENTRATIONS OF I-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP III -

CONTROL COLLECTION GROUP I - NEAR FIELD GROUP II - FAR FIELD LOCATION PERIOD BD-06 BD-19 BD-20 BD-21 BD-02 BD-04 BD-05 BD-03 01/02/14 - 01/09/14 < 60 < 60 < 60 < 60 < 69 < 69 < 69 < 69 01/09/14 - 01/16/14 < 54 < 65 < 65 < 65 < 53 < 54 < 32 < 54 01/16/14 - 01/23/14 < 51 < 51 < 51 < 51 < 48 < 48 < 48 < 48 01/23/14 - 01/30/14 < 58 < 58 < 58 < 59 < 43 < 41 < 43 < 43 01/30/14 - 02/06/14 < 53 < 57 < 57 < 54 < 63 < 61 < 63 < 63 02/06/14 - 02/13/14 < 62 < 22 < 62 < 62 < 57 < 57 < 62 < 57 02/13/14 - 02/19/14 < 67 < 67 < 67 < 67 < 68 < 68 < 68 < 68 02/19/14 - 02/27/14 < 31 < 32 < 12 < 32 < 19 < 37 < 31 < 37 02/27/14 - 03/06/14 < 61 < 61 < 61 < 61 < 50 < 50 < 50 < 50 03/06/14 - 03/13/14 < 59 < 59 < 60 < 25 < 59 (1) < 58 < 59 < 57 03/13/14 - 03/20/14 < 44 < 45 < 45 < 45 < 41 < 41 < 42 < 41 03/20/14 - 03/27/14 < 66 < 68 < 68 < 68 < 26 < 66 < 68 < 66 03/27/14 - 04/03/14 < 58 < 58 < 58 < 58 < 57 < 57 < 57 < 57 04/03/14 - 04/10/14 < 54 < 61 < 61 < 61 < 54 < 54 < 54 < 23 04/10/14 - 04/17/14 < 43 < 44 < 44 < 45 < 44 < 44 < 45 < 44 04/17/14 - 04/24/14 < 36 < 41 < 39 < 39 < 36 < 14 < 36 < 36 04/24/14 - 05/01/14 < 67 < 67 < 67 < 67 < 62 < 63 < 63 < 63 05/01/14 - 05/08/14 < 45 < 54 < 54 < 55 < 44 < 45 < 26 < 44 05/08/14 - 05/15/14 < 40 < 40 < 40 < 40 < 41 < 46 (1) < 41 < 41 05/15/14 - 05/22/14 < 63 < 62 < 62 < 63 < 61 < 25 < 61 < 61 05/22/14 - 05/29/14 < 43 < 44 < 44 < 44 < 48 < 48 < 48 < 48 05/29/14 - 06/05/14 < 59 < 25 < 59 < 59 < 69 < 69 < 59 < 69 06/05/14 - 06/12/14 < 60 < 59 < 59 < 59 < 62 < 62 < 62 < 62 06/12/14 - 06/19/14 < 51 < 54 < 19 < 54 < 49 < 49 < 53 < 49 06/19/14 - 06/26/14 < 30 < 30 < 30 (1) < 29 < 29 < 29 < 34 (1) 06/26/14 - 07/03/14 < 54 < 54 < 54 < 23 < 56 (1) < 50 < 54 < 50 07/03/14 - 07/10/14 < 67 < 67 < 68 < 68 < 51 < 57 (1) < 51 < 51 07/10/14 - 07/17/14 < 64 < 64 < 64 < 64 < 63 < 61 < 63 < 24 (1) 07/17/14 - 07/24/14 < 67 < 67 < 67 < 68 < 63 < 62 < 62 (1) 07/24/14 - 07/31/14 < 46 < 46 < 46 < 46 < 18 < 46 < 46 < 53 07/31/14 - 08/07/14 < 51 < 51 < 51 < 51 < 45 < 45 < 45 < 45 08/07/14 - 08/14/14 < 47 < 47 < 47 < 47 < 37 < 37 < 37 < 14 08/14/14 - 08/21/14 < 46 < 46 < 47 < 47 < 43 < 43 < 43 < 43 08/21/14 - 08/28/14 < 66 < 69 < 69 < 69 < 66 < 28 < 66 < 66 08/28/14 - 09/04/14 < 69 < 69 < 69 < 69 < 61 < 62 < 62 < 61 09/04/14 - 09/11/14 < 38 < 50 < 50 < 50 < 37 < 37 < 38 < 37 09/11/14 - 09/18/14 < 29 < 29 < 29 < 29 < 67 < 67 < 67 < 67 09/18/14 - 09/25/14 < 47 < 47 < 47 < 47 < 43 < 43 < 43 < 43 09/25/14 - 10/02/14 < 38 < 44 < 44 < 44 < 15 < 38 < 38 < 38 10/02/14 - 10/09/14 < 21 < 21 < 51 < 51 < 49 < 49 < 49 < 49 10/09/14 - 10/16/14 < 68 < 66 < 68 < 68 < 61 < 62 < 62 < 62 10/16/14 - 10/23/14 < 43 < 43 < 43 < 43 < 41 < 41 < 41 < 41 10/23/14 - 10/30/14 < 55 < 55 < 55 < 55 < 44 < 44 < 44 < 44 10/30/14 - 11/06/14 < 69 < 69 < 69 < 29 < 65 < 65 < 65 < 65 11/06/14 - 11/13/14 < 53 < 54 < 54 < 54 < 42 < 42 < 42 < 42 11/13/14 - 11/20/14 < 47 < 65 < 65 < 65 < 20 < 47 < 44 < 47 11/20/14 - 11/26/14 < 62 < 62 < 62 < 64 < 49 < 49 < 50 < 50 (1) 11/26/14 - 12/04/14 < 41 < 42 < 44 < 44 < 41 < 41 < 41 < 18 12/04/14 - 12/11/14 < 68 < 68 < 68 < 68 < 53 < 53 < 53 < 53 12/11/14 - 12/18/14 < 67 < 67 < 67 < 67 < 67 < 37 < 67 < 67 12/18/14 - 12/24/14 < 41 < 41 < 41 < 42 < 69 < 69 < 69 < 69 12/24/14 - 12/31/14 < 50 < 51 < 51 < 51 < 50 < 50 < 26 < 50 MEAN - - - - - - - -

THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-16

Table C-VIII.1 CONCENTRATIONS OF I-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA INDICATOR FARM CONTROL FARM COLLECTION BD-17 BD-18 PERIOD 01/02/14 < 0.7 (1) 02/06/14 < 0.5 (1) 03/06/14 < 0.8 (1) 04/03/14 < 0.6 (1) 05/01/14 < 0.5 (1) 05/15/14 < 0.6 (1) 05/30/14 < 0.6 (1) 06/12/14 < 0.5 (1) 06/26/14 < 0.6 (1) 07/10/14 < 0.5 (1) 07/24/14 < 0.6 (1) 08/08/14 < 0.6 (1) 08/21/14 < 0.6 (1) 09/04/14 < 0.7 (1) 09/18/14 < 0.6 (1) 10/02/14 < 0.7 (1) 10/16/14 < 0.5 (1) 10/30/14 < 0.4 (1) 11/13/14 < 0.3 (1) 12/04/14 < 0.6 (1)

MEAN - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-17

Table C-VIII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 BD-17 01/02/14 < 5 < 6 < 14 < 7 < 14 < 7 < 11 < 5 < 6 < 31 < 12 02/06/14 < 3 < 4 < 9 < 5 < 9 < 4 < 6 < 3 < 4 < 24 < 5 03/06/14 < 4 < 4 < 10 < 5 < 10 < 4 < 7 < 4 < 4 < 20 < 5 04/03/14 < 5 < 5 < 12 < 5 < 12 < 5 < 9 < 4 < 6 < 33 < 7 05/01/14 < 7 < 7 < 17 < 7 < 16 < 7 < 13 < 6 < 6 < 39 < 14 05/15/14 < 6 < 7 < 16 < 6 < 14 < 5 < 10 < 5 < 5 < 25 < 8 05/30/14 < 6 < 6 < 14 < 6 < 13 < 6 < 11 < 5 < 5 < 36 < 11 06/12/14 < 8 < 9 < 19 < 8 < 19 < 10 < 16 < 9 < 8 < 43 < 10 06/26/14 < 7 < 6 < 14 < 6 < 15 < 7 < 11 < 6 < 7 < 31 < 8 07/10/14 < 4 < 5 < 13 < 5 < 11 < 6 < 10 < 4 < 5 < 32 < 9 07/24/14 < 6 < 7 < 14 < 6 < 16 < 7 < 11 < 5 < 6 < 34 < 12 08/08/14 < 5 < 4 < 11 < 4 < 10 < 5 < 9 < 5 < 5 < 27 < 7 08/21/14 < 6 < 6 < 14 < 7 < 12 < 5 < 10 < 6 < 6 < 39 < 11 09/04/14 < 8 < 9 < 24 < 8 < 20 < 10 < 16 < 8 < 9 < 56 < 6 09/18/14 < 5 < 5 < 14 < 4 < 13 < 6 < 12 < 5 < 6 < 32 < 8 C-18 10/02/14 < 5 < 6 < 15 < 6 < 13 < 7 < 11 < 5 < 6 < 39 < 11 10/16/14 < 1 < 1 < 3 < 1 < 3 < 1 < 3 < 1 < 1 < 14 < 4 10/30/14 < 6 < 7 < 17 < 7 < 14 < 8 < 12 < 6 < 7 < 40 < 13 11/13/14 < 6 < 6 < 17 < 8 < 19 < 6 < 12 < 7 < 8 < 29 < 10 12/04/14 < 6 < 7 < 14 < 7 < 15 < 7 < 12 < 6 < 6 < 29 < 8 MEAN - - - - - - - - - - -

Table C-VIII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 BD-18 01/02/14 (1) - - - - - - - - - - -

02/06/14 (1) - - - - - - - - - - -

03/06/14 (1) - - - - - - - - - - -

04/03/14 (1) - - - - - - - - - - -

05/01/14 (1) - - - - - - - - - - -

05/15/14 (1) - - - - - - - - - - -

05/30/14 (1) - - - - - - - - - - -

06/12/14 (1) - - - - - - - - - - -

06/26/14 (1) - - - - - - - - - - -

07/10/14 (1) - - - - - - - - - - -

07/24/14 (1) - - - - - - - - - - -

08/08/14 (1) - - - - - - - - - - -

08/21/14 (1) - - - - - - - - - - -

09/04/14 (1) - - - - - - - - - - -

09/18/14 (1) - - - - - - - - - - -

C-19 10/02/14 (1) - - - - - - - - - - -

10/16/14 (1) - - - - - - - - - - -

10/30/14 (1) - - - - - - - - - - -

11/13/14 (1) - - - - - - - - - - -

12/04/14 (1) - - - - - - - - - - -

MEAN - - - - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-IX.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 BD-CONTROL Beets 09/19/14 < 13 < 13 < 32 < 13 < 33 < 13 < 22 < 11 < 13 < 75 < 16 Cabbage 09/19/14 < 8 < 8 < 22 < 10 < 21 < 8 < 16 < 7 < 8 < 46 < 12 MEAN - - - - - - - - - - -

BD-QUAD 1 Cabbage 09/17/14 < 12 < 13 < 27 < 9 < 27 < 14 < 20 < 10 < 12 < 78 < 21 Potatoes 09/17/14 < 11 < 11 < 26 < 10 < 26 < 11 < 18 < 9 < 9 < 61 < 18 MEAN - - - - - - - - - - -

BD-QUAD 2 Broccoli 09/17/14 < 11 < 11 < 25 < 10 < 23 < 10 < 20 < 10 < 11 < 58 < 19 Potatoes 09/17/14 < 12 < 11 < 33 < 14 < 29 < 12 < 21 < 10 < 13 < 66 < 17 C-20 MEAN - - - - - - - - - - -

BD-QUAD 3 Cabbage 09/20/14 < 22 < 25 < 45 < 19 < 46 < 24 < 36 < 19 < 22 < 135 < 31 Onions 09/20/14 < 11 < 16 < 36 < 16 < 33 < 17 < 27 < 15 < 16 < 97 < 22 MEAN - - - - - - - - - - -

BD-QUAD 4 Beets 09/20/14 < 9 < 11 < 24 < 11 < 25 < 10 < 20 < 8 < 10 < 55 < 15 Cabbage 09/20/14 < 8 < 10 < 22 < 8 < 19 < 8 < 13 < 8 < 9 < 54 < 12 MEAN - - - - - - - - - - -

Table C-X.1 QUARTERLY OSLD RESULTS FOR BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-02-1 19.7 +/- 4.7 16.6 19.7 20.3 22.3 BD-02-2 19.4 +/- 3.0 17.3 19.6 19.9 20.8 BD-03-1 20.6 +/- 4.8 17.2 22.2 20.7 22.4 BD-03-2 20.4 +/- 2.8 18.7 19.9 21.8 21.2 BD-04-1 19.2 +/- 3.2 17.0 19.8 19.2 20.8 BD-04-2 18.7 +/- 3.3 16.4 19.8 20.0 18.4 BD-05-1 20.1 +/- 3.6 17.4 21.1 20.8 21.0 BD-05-2 19.4 +/- 2.9 17.3 20.1 19.5 20.5 BD-06-1 18.6 +/- 3.8 16.2 18.7 18.5 20.8 BD-06-2 19.3 +/- 4.1 16.9 (1) 20.4 20.5 BD-19-1 19.6 +/- 4.1 16.5 20.8 20.4 20.7 BD-19-2 20.4 +/- 4.6 17.2 20.4 21.8 22.3 BD-20-1 19.6 +/- 3.2 17.4 19.5 20.3 21.2 BD-20-2 19.8 +/- 3.9 17.0 20.3 20.5 21.5 BD-21-1 18.8 +/- 3.4 16.3 19.0 19.6 20.2 BD-21-2 19.2 +/- 3.2 16.8 20.0 19.7 20.3 BD-101-3 19.1 +/- 4.4 16.0 19.9 19.5 21.1 BD-101-4 19.7 +/- 4.0 16.8 20.4 20.2 21.4 BD-102-1 17.7 +/- 2.9 16.0 17.6 17.6 19.6 BD-102-2 20.1 +/- 3.9 17.3 20.2 21.1 21.7 BD-103-1 19.1 +/- 3.8 16.9 (1) 20.2 20.2 BD-103-2 19.0 +/- 4.4 15.9 21.0 18.9 20.1 BD-104-1 18.1 +/- 0.6 (1) 18.0 17.9 18.5 BD-104-2 17.8 +/- 5.2 13.9 19.5 19.0 18.8 BD-104-3 21.6 +/- 7.0 19.0 20.1 20.5 26.8 BD-104-4 22.8 +/- 5.4 19.2 22.4 25.5 24.1 BD-105-1 18.0 +/- 2.6 16.2 18.1 18.7 19.1 BD-105-2 19.0 +/- 3.0 16.9 19.1 19.3 20.5 BD-105-3 22.6 +/- 6.0 19.1 23.2 21.6 26.3 BD-105-4 22.5 +/- 10.5 18.1 21.7 20.2 30.1 BD-106-1 18.5 +/- 5.1 14.7 19.2 19.4 20.5 BD-106-2 18.3 +/- 3.3 16.1 19.4 17.8 19.7 BD-107-1 18.9 +/- 3.0 16.7 20.0 19.4 19.5 BD-107-2 18.4 +/- 4.1 16.0 18.6 18.0 21.0 BD-108-1 18.4 +/- 4.0 15.5 19.4 18.7 19.9 BD-108-2 19.6 +/- 4.4 16.3 20.2 20.7 21.1 BD-109-1 21.6 +/- 3.7 19.5 23.5 20.7 22.7 BD-109-2 22.6 +/- 2.9 20.5 23.3 22.8 23.8 BD-110-1 18.0 +/- 0.8 17.6 18.0 17.7 18.5 BD-110-2 17.8 +/- 4.2 14.9 18.5 19.8 18.0 BD-110-3 21.4 +/- 7.6 18.5 20.7 19.5 26.9 BD-110-4 21.1 +/- 6.0 19.2 19.3 20.5 25.5 BD-112-1 19.1 +/- 4.9 15.8 20.3 18.8 21.5 BD-112-2 18.0 +/- 2.4 16.2 18.4 19.0 18.2 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-21

Table C-X.1 QUARTERLY OSLD RESULTS FOR BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-114-1 19.2 +/- 3.9 16.3 19.8 20.6 20.1 BD-114-2 18.6 +/- 4.9 15.8 (1) 19.8 20.3 BD-115-1 18.7 +/- 5.1 15.3 18.7 19.5 21.4 BD-115-2 19.3 +/- 4.1 16.3 20.7 19.6 20.6 BD-116-1 19.9 +/- 4.5 16.7 21.9 20.1 20.7 BD-116-2 19.6 +/- 5.4 15.8 20.5 19.9 22.1 BD-201-1 23.4 +/- 6.3 18.7 24.7 25.4 24.9 BD-201-2 20.6 +/- 3.8 17.7 21.6 21.6 21.3 BD-202-1 19.4 +/- 5.0 15.8 19.7 21.3 20.9 BD-202-2 19.1 +/- 5.3 15.3 19.4 19.9 21.6 BD-203-1 20.1 +/- 5.5 16.1 21.8 20.5 22.0 BD-203-2 18.0 +/- 4.6 14.9 20.4 18.2 18.6 BD-204-1 18.5 +/- 5.0 15.0 19.0 19.2 20.9 BD-204-2 17.8 +/- 2.4 16.1 18.7 17.8 18.5 BD-205-1 18.0 +/- 4.5 14.8 18.4 18.7 20.1 BD-205-2 18.1 +/- 4.1 15.3 19.7 17.6 19.6 BD-206-1 20.2 +/- 3.1 (1) 20.4 18.5 21.6 BD-206-2 18.5 +/- 3.8 16.3 19.9 17.5 20.2 BD-207-1 18.5 +/- 4.3 15.7 17.9 19.7 20.6 BD-207-2 17.3 +/- 3.3 15.1 17.0 18.2 18.9 BD-208-1 20.0 +/- 0.6 (1) 19.8 19.9 20.4 BD-208-2 18.5 +/- 3.1 16.2 19.0 18.9 19.7 BD-209-1 23.4 +/- 5.5 19.3 25.3 24.1 24.7 BD-209-2 23.9 +/- 6.7 19.3 24.5 24.5 27.4 BD-210-1 21.5 +/- 1.8 20.5 21.1 21.9 22.6 BD-210-2 20.7 +/- 3.0 18.5 21.9 21.1 21.1 BD-211-1 22.7 +/- 6.6 17.9 24.2 23.3 25.4 BD-211-2 23.0 +/- 5.2 19.5 22.5 24.5 25.3 BD-212-3 19.7 +/- 4.6 16.6 20.1 19.8 22.1 BD-212-4 24.1 +/- 6.3 19.4 26.4 25.0 25.5 BD-213-3 18.4 +/- 3.5 15.9 18.3 19.8 19.5 BD-213-4 18.7 +/- 3.5 16.8 18.6 18.2 21.0 BD-214-1 18.8 +/- 2.6 17.1 18.6 19.3 20.2 BD-214-2 21.5 +/- 5.1 17.7 23.0 22.4 23.0 BD-215-1 18.5 +/- 3.7 17.0 19.0 17.0 20.8 BD-215-2 18.3 +/- 3.8 16.1 18.7 17.8 20.7 BD-216-1 20.9 +/- 5.0 17.3 21.3 21.6 23.2 BD-216-2 20.9 +/- 4.1 18.2 21.0 21.1 23.2 BD-111A-1 19.0 +/- 4.6 16.1 18.7 19.3 21.7 BD-111A-2 19.5 +/- 5.9 15.9 18.9 20.0 23.0 BD-113A-1 18.6 +/- 4.4 16.2 20.3 17.3 20.7 BD-113A-2 19.8 +/- 4.3 17.3 19.8 19.6 22.6 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-22

TABLE C-X.2 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING, OUTER RING, OTHER CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION OF THE STATION DATA COLLECTION INNER RING OUTER RING OTHER CONTROL ISFSI PERIOD +/- 2 S.D.

JAN-MAR 16.4 +/- 2.5 17.0 +/- 3.2 16.9 +/- 0.8 18.0 +/- 2.1 18.9 +/- 0.9 APR-JUN 19.7 +/- 2.8 20.7 +/- 4.7 19.9 +/- 1.3 21.1 +/- 3.3 21.2 +/- 2.9 JUL-SEP 19.4 +/- 2.3 20.4 +/- 4.8 20.1 +/- 1.6 21.3 +/- 1.6 21.3 +/- 4.3 OCT-DEC 20.6 +/- 2.8 21.7 +/- 4.5 20.8 +/- 1.9 21.8 +/- 1.7 26.6 +/- 4.0 TABLE C-X.2 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING, OUTER RING, OTHER, CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

INNER RING 125 13.9 23.8 19.0 +/- 4.1 OUTER RING 126 14.8 27.4 20.0 +/- 5.6 OTHER 55 16.2 22.3 19.4 +/- 3.4 CONTROL 8 17.2 22.4 20.5 +/- 3.6 ISFSI 24 18.1 30.1 22.0 +/- 6.6 INNER RING STATIONS - BD-101-3, BD-101-4, BD-102-1, BD-102-2, BD-103-1, BD-103-2, BD-104-1, BD-104-2, BD-105-1, BD-105-2, BD-106-1, BD-106-2, BD-107-1, BD-107-2, BD-108-1, BD-108-2, BD-109-1, BD-109-2, BD-110-1, BD-110-2, BD-111A-1, BD-111A-2, BD-112-1, BD-112-2, BD-113A-1, BD-113A-2, BD-114-1, BD-114-2, BD-115-1, BD-115-2, BD-116-1, BD-116-2 OUTER RING STATIONS - BD-201-1, BD-201-2, BD-202-1, BD-202-2, BD-203-1, BD-203-2, BD-204-1, BD-204-2, BD-205-1, BD-205-2, BD-206-1, BD-206-2, BD-207-1, BD-207-2, BD-208-1, BD-208-2, BD-209-1, BD-209-2, BD-210-1, BD-210-2, BD-211-1, BD-211-2, BD-212-3, BD-212-4, BD-213-3, BD-213-4, BD-214-1, BD-214-2, BD-215-1, BD-215-2, BD-216-1, BD-216-2 OTHER STATIONS - BD-02-1, BD-02-2, BD-04-1, BD-04-2, BD-05-1, BD-05-2, BD-06-1, BD-06-2, BD-19-1, BD-19-2, BD-20-1, BD-20-2, BD-21-1, BD-21-2 CONTROL STATIONS - BD-03-1, BD-03-2 ISFSI STATIONS - BD-104-3, BD-104-4, BD-105-3, BD-105-4, BD-110-3, BD-110-4 C-23

FIGURE C-1 Surface Water - Gross Beta - Stations BD-10 and BD-25 (C)

Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-10 Kankaee River, Downstream 10.0 8.0 6.0 pCi/L 4.0 2.0 0.0 01-01-00 01-01-03 01-01-06 01-01-09 01-02-12 01-02-15 BD-25 (C) Kankakee River, Upstream 16.0 14.0 12.0 10.0 pCi/L 8.0 6.0 4.0 2.0 0.0 01-01-00 01-01-03 01-01-06 01-01-09 01-02-12 01-02-15 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-24

FIGURE C-2 Surface Water - Gross Beta - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2007 - 2014 BD-38 Main Drainage Ditch 14.0 12.0 10.0 pCi/L 8.0 6.0 4.0 2.0 0.0 01-25-07 08-27-08 03-30-10 10-31-11 06-02-13 01-03-15 BD-40 Braidwood Station Cooling Lake 16.0 14.0 12.0 10.0 pCi/L 8.0 6.0 4.0 2.0 0.0 10-05-06 05-29-08 01-21-10 09-15-11 05-09-13 01-01-15 C-25

FIGURE C-3 Surface Water - Gross Beta - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2014 BD-55 North Pond Fatlan Site 14.0 12.0 10.0 pCi/L 8.0 6.0 4.0 2.0 0.0 01-25-07 08-27-08 03-30-10 10-31-11 06-02-13 01-03-15 BD-56 South Pond Fatlan Site 10.0 8.0 6.0 pCi/L 4.0 2.0 0.0 01-25-07 08-27-08 03-30-10 10-31-11 06-02-13 01-03-15 GAPS IN DATA ARE DUE TO SAMPLING POINTS BEING FROZEN AT TIME OF COLLECTION C-26

FIGURE C-4 Surface Water - Tritium - Stations BD-10 and BD-25 (C)

Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-10 Kankakee River, Downstream 3000 2500 2000 pCi/L 1500 1000 500 0

03-25-00 03-09-03 02-20-06 02-03-09 01-18-12 01-01-15 BD-25 (C) Kankakee River, Upstream 400 300 pCi/L 200 100 0

03-25-00 03-09-03 02-20-06 02-03-09 01-18-12 01-01-15 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-27

FIGURE C-5 Surface Water - Tritium - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2006 - 2014 BD-38 Main Drainage Ditch 2400 2100 1800 1500 pCi/L 1200 900 600 300 0

03-09-06 12-13-07 09-17-09 06-23-11 03-28-13 01-01-15 BD-40 Braidwood Station Cooling Lake 400 300 pCi/L 200 100 0

07-20-06 03-28-08 12-05-09 08-14-11 04-22-13 12-30-14 C-28

FIGURE C-6 Surface Water - Tritium - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2014 BD-55 North Pond Fatlan Site 250 200 150 pCi/L 100 50 0

03-29-07 10-16-08 05-06-10 11-24-11 06-13-13 01-01-15 BD-56 South Pond Fatlan Site 250 200 150 pCi/L 100 50 0

03-29-07 10-16-08 05-06-10 11-24-11 06-13-13 01-01-15 C-29

FIGURE C-7 Public Water - Gross Beta - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-22 Wilmington 10.0 8.0 6.0 pCi/L 4.0 2.0 0.0 01-29-00 01-23-03 01-17-06 01-11-09 01-06-12 12-31-14 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-30

FIGURE C-8 Public Water - Tritium - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-22 Wilmington 7600 7200 6800 6400 6000 5600 5200 4800 4400 pCi/L 4000 3600 3200 2800 2400 2000 1600 1200 800 400 0

01-29-00 01-23-03 01-17-06 01-11-09 01-06-12 12-31-14 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-31

FIGURE C-9 Ground/Well Water - Tritium - Stations BD-13 and BD-34 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-13 Braidwood City Hall Well 500 400 300 pCi/L 200 100 0

01-07-00 01-05-03 01-03-06 01-01-09 12-31-11 12-29-14 BD-34 Gibson Well 700 600 500 400 pCi/L 300 200 100 0

01-07-00 01-05-03 01-03-06 01-01-09 12-31-11 12-29-14 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JULY.

C-32

FIGURE C-10 Ground/Well Water - Tritium - Stations BD-35 and BD-36 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-35 Joly Well 500 400 300 pCi/L 200 100 0

01-07-00 01-05-03 01-03-06 01-01-09 12-31-11 12-29-14 BD-36 Hutton Well 1200 1000 800 pCi/L 600 400 200 0

01-07-00 01-05-03 01-03-06 01-01-09 12-31-11 12-29-14 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JULY.

C-33

FIGURE C-11 Ground/Well Water - Tritium - Station BD-37 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-37 Nurczyk Well 600 500 400 pCi/L 300 200 100 0

01-07-00 01-05-03 01-03-06 01-01-09 12-31-11 12-29-14 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JULY.

C-34

FIGURE C-12 Ground/Well Water - Tritium - Station BD-50 and BD-51 Collected in the Vicinity of Braidwood Station, 2007 - 2014 BD-50 Skole Well 1000 900 800 700 600 pCi/L 500 400 300 200 100 0

01-01-07 08-07-08 03-14-10 10-19-11 05-25-13 12-30-14 BD-51 Fatlan Well 600 500 400 pCi/L 300 200 100 0

01-03-07 08-09-08 03-16-10 10-21-11 05-27-13 01-01-15 NEW STATIONS BD-50 AND BD-51 ADDED IN 2007 STATION BD-50 WAS INITIALLY DISCONTINUED ON 10/18/07 AND RESUMED ON 04/08/10 C-35

FIGURE C-13 Ground/Well Water - Tritium - Stations BD-53 and BD-54 Collected in the Vicinity of Braidwood Station, 2007 - 2014 BD-53 Phelps Well 600 500 400 pCi/L 300 200 100 0

01-03-07 11-03-07 09-02-08 07-03-09 05-03-10 03-03-11 01-01-12 BD-54 Cash Well 600 500 400 pCi/L 300 200 100 0

01-03-07 08-09-08 03-16-10 10-21-11 05-27-13 01-01-15 BD-53 was removed from the program during the 3rd quarter of 2011 C-36

FIGURE C-14 Air Particulate - Gross Beta- Stations BD-03 (C) and BD-06 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-03 (C) County Line Road 80.0 60.0 10E-03 pCi/m3 40.0 20.0 0.0 01-07-00 01-06-03 01-05-06 01-04-09 01-04-12 01-03-15 BD-06 Godley 60.0 50.0 10E-03 pCi/m3 40.0 30.0 20.0 10.0 0.0 01-07-00 01-06-03 01-05-06 01-04-09 01-04-12 01-03-15 C-37

FIGURE C-15 Air Particulate - Gross Beta- Stations BD-19 and BD-20 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-19 Near Field, NW 60.0 50.0 40.0 10E-03 pCi/m3 30.0 20.0 10.0 0.0 01-07-00 01-06-03 01-05-06 01-04-09 01-04-12 01-03-15 BD-20 Near Field, N 70.0 60.0 50.0 10E-03 pCi/m3 40.0 30.0 20.0 10.0 0.0 01-07-00 01-06-03 01-05-06 01-04-09 01-04-12 01-03-15 C-38

FIGURE C-16 Air Particulate - Gross Beta- Station BD-21 Collected in the Vicinity of Braidwood Station, 2000 - 2014 BD-21 Near Field, NE 70.0 60.0 50.0 10E-03 pCi/m3 40.0 30.0 20.0 10.0 0.0 01-07-00 01-06-03 01-05-06 01-04-09 01-04-12 01-03-15 C-39

FIGURE C-17 Air Particulate - Gross Beta- Stations BD-02 and BD-04 Collected in the Vicinity of Braidwood Station, 2005 - 2014 BD-02 Near Field, NW 60.0 50.0 40.0 10E-03 pCi/m3 30.0 20.0 10.0 0.0 07-07-05 05-31-07 04-23-09 03-17-11 02-07-13 01-01-15 BD-04 Near Field, N 60.0 50.0 10E-03 pCi/m3 40.0 30.0 20.0 10.0 0.0 07-07-05 05-31-07 04-23-09 03-17-11 02-07-13 01-01-15 C-40

FIGURE C-18 Air Particulate - Gross Beta- Station BD-05 Collected in the Vicinity of Braidwood Station, 2005 - 2014 BD-05 Near Field, NE 60.0 50.0 40.0 10E-03 pCi/m3 30.0 20.0 10.0 0.0 07-07-05 05-31-07 04-23-09 03-17-11 02-07-13 01-01-15 C-41

Intentionally left blank APPENDIX D INTER-LABORATORY COMPARISON PROGRAM

Intentionally left blank TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2014 (PAGE 1 OF 3)

Identification Reported Known Ratio (c)

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

March 2014 E10854 Milk Sr-89 pCi/L 95.1 91.7 1.04 A Sr-90 pCi/L 10.9 15.1 0.72 W E10855 Milk I-131 pCi/L 96.6 98.5 0.98 A Ce-141 pCi/L 112 119 0.94 A Cr-51 pCi/L 449 491 0.91 A Cs-134 pCi/L 186 210 0.89 A Cs-137 pCi/L 250 253 0.99 A Co-58 pCi/L 248 268 0.93 A Mn-54 pCi/L 292 297 0.98 A Fe-59 pCi/L 230 219 1.05 A Zn-65 pCi/L 312 323 0.97 A Co-60 pCi/L 321 337 0.95 A E10857 AP Ce-141 pCi 53.0 53.9 0.98 A Cr-51 pCi 232 223 1.04 A Cs-134 pCi 100 95.3 1.05 A Cs-137 pCi 122 115 1.06 A Co-58 pCi 122 121 1.01 A Mn-54 pCi 135 135 1.00 A Fe-59 pCi 111 99.3 1.12 A Zn-65 pCi 140 147 0.95 A Co-60 pCi 187 153 1.22 W E10856 Charcoal I-131 pCi 74.1 76.4 0.97 A E10858 Water Fe-55 pCi/L 2090 1760 1.19 A June 2014 E10913 Milk Sr-89 pCi/L 85.9 91.3 0.94 A Sr-90 pCi/L 13.8 14.5 0.95 A E10914 Milk I-131 pCi/L 86.5 90.9 0.95 A Ce-141 pCi/L 111 124 0.90 A Cr-51 pCi/L 255 253 1.01 A Cs-134 pCi/L 147 162 0.91 A Cs-137 pCi/L 123 120 1.03 A Co-58 pCi/L 105 112 0.94 A Mn-54 pCi/L 155 156 0.99 A Fe-59 pCi/L 106 102 1.04 A Zn-65 pCi/L 251 252 1.00 A Co-60 pCi/L 218 224 0.97 A E10916 AP Ce-141 pCi 95.1 92.6 1.03 A Cr-51 pCi 215 190 1.13 A Cs-134 pCi 122 122 1.00 A Cs-137 pCi 95.1 89.8 1.06 A Co-58 pCi 88.7 84.1 1.05 A Mn-54 pCi 115 116 0.99 A Fe-59 pCi 72.6 76.7 0.95 A Zn-65 pCi 193 189 1.02 A Co-60 pCi 179 168 1.07 A E10915 Charcoal I-131 pCi 85.6 85.2 1.00 A E10917 Water Fe-55 pCi/L 1680 1810 0.93 A D-1

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2014 (PAGE 2 OF 3)

Identification Reported Known Ratio (c)

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

September 2014 E10946 Milk Sr-89 pCi/L 90.7 96.9 0.94 A Sr-90 pCi/L 14.0 16.4 0.85 A E10947 Milk I-131 pCi/L 92.0 97.6 0.94 A Ce-141 pCi/L 117 126 0.93 A Cr-51 pCi/L 281 288 0.98 A Cs-134 pCi/L 141 158 0.89 A Cs-137 pCi/L 186 193 0.96 A Co-58 pCi/L 137 143 0.96 A Mn-54 pCi/L 138 142 0.97 A Fe-59 pCi/L 162 158 1.03 A Zn-65 pCi/L 75.2 73.0 1.03 A Co-60 pCi/L 286 297 0.96 A E10949 AP Ce-141 pCi 97.8 82.1 1.19 A Cr-51 pCi 212 188 1.13 A Cs-134 pCi 106 103 1.03 A Cs-137 pCi 131 126 1.04 A Co-58 pCi 85.7 93.0 0.92 A Mn-54 pCi 92.8 92.3 1.01 A Fe-59 pCi 113 103 1.10 A Zn-65 pCi 53.2 47.5 1.12 A Co-60 pCi 202 193 1.05 A E10948 Charcoal I-131 pCi 83.9 89.8 0.93 A E10950 Water Fe-55 pCi/L 2010 1720 1.17 A E10951 Soil Ce-141 pCi/g 0.208 0.186 1.12 A Cr-51 pCi/g 0.398 0.425 0.94 A Cs-134 pCi/g 0.216 0.233 0.93 A Cs-137 pCi/g 0.398 0.365 1.09 A Co-58 pCi/g 0.197 0.211 0.93 A Mn-54 pCi/g 0.242 0.209 1.16 A Fe-59 pCi/g 0.238 0.233 1.02 A Zn-65 pCi/g 0.117 0.108 1.08 A Co-60 pCi/g 0.447 0.438 1.02 A December 2014 E11078 Milk Sr-89 pCi/L 85.7 95.7 0.90 A Sr-90 pCi/L 12.9 15.6 0.83 A E11079 Milk I-131 pCi/L 85.9 95.1 0.90 A Ce-141 pCi/L 205 219 0.94 A Cr-51 pCi/L 402 406 0.99 A Cs-134 pCi/L 156 164 0.95 A Cs-137 pCi/L 194 198 0.98 A Co-58 pCi/L 122 130 0.94 A Mn-54 pCi/L 220 225 0.98 A Fe-59 pCi/L 183 175 1.05 A Zn-65 pCi/L 287 297 0.97 A Co-60 pCi/L 224 235 0.95 A D-2

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2014 (PAGE 3 OF 3)

Identification Reported Known Ratio (c)

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

December 2014 E11081 AP Ce-141 pCi 96.4 102 0.95 A Cr-51 pCi 171 190 0.90 A Cs-134 pCi 73.1 76.9 0.95 A Cs-137 pCi 99.0 92.6 1.07 A Co-58 pCi 57.5 60.8 0.95 A Mn-54 pCi 107 105 1.02 A Fe-59 pCi 74.2 81.6 0.91 A Zn-65 pCi 144 139 1.04 A Co-60 pCi 114 110 1.04 A E11080 Charcoal I-131 pCi 93.5 98.2 0.95 A E11082 Water Fe-55 pCi/L 1760 1970 0.89 A (a) Teledyne Brown Engineering reported result.

(b) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

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

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

W-Acceptable with warning, reported result falls within 0.70-0.80 or 1.20-1.30. N = Not Acceptable, reported result falls outside the ratio limits of < 0.70 and > 1.30.

D-3

TABLE D-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2014 (PAGE 1 OF 1)

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

May 2014 RAD-97 Water Sr-89 pCi/L 38.25 36.7 27.5 - 43.6 A Sr-90 pCi/L 24.65 26.5 19.2 - 30.9 A Ba-133 pCi/L 89.1 87.9 74.0 - 96.7 A Cs-134 pCi/L 45.55 44.3 35.5 - 48.7 A Cs-137 pCi/L 91.15 89.1 80.2 - 101 A Co-60 pCi/L 65.10 64.2 57.8 - 73.1 A Zn-65 pCi/L 244 235 212 - 275 A Gr-A pCi/L 45.65 61.0 31.9 - 75.8 A Gr-B pCi/L 27.95 33.0 21.4 - 40.7 A I-131 pCi/L 23.75 25.7 21.3 - 30.3 A U-Nat pCi/L 9.61 10.2 7.95 - 11.8 A H-3 pCi/L 8435 8770 7610 - 9650 A MRAD-20 Filter Gr-A pCi/filter 28.0 46.0 15.4 - 71.4 A November 2014 RAD-99 Water Sr-89 pCi/L 30.4 31.4 22.8 - 38.1 A Sr-90 pCi/L 18.6 21.8 15.6 - 25.7 A Ba-133 pCi/L 46.8 49.1 40.3 - 54.5 A Cs-134 pCi/L 88.0 89.8 73.7 - 98.8 A Cs-137 pCi/L 99.0 98.8 88.9 - 111 A Co-60 pCi/L 92.5 92.1 82.9 - 104 A Zn-65 pCi/L 325 310 279 - 362 A Gr-A pCi/L 29.9 37.6 19.4 - 48.1 A Gr-B pCi/L 27.5 27.4 17.3 - 35.3 A I-131 pCi/L 15.8 20.3 16.8 - 24.4 N (1)

U-Nat pCi/L 5.74 5.80 4.34 - 6.96 A H-3 pCi/L 6255 6880 5940 - 7570 A MRAD-21 Filter Gr-A pCi/filter 27.3 36.9 12.4 - 57.3 A (1) The Iodine-131 was evaluated as failed with a ratio of 0.778. No cause could be found for the slightly low activity. TBE would evaluate this as acceptable with warning. A rerun was not possible due to I-131 decay. All other ERA Iodine-131 evaluations since 2004 have been acceptable. NCR 14-08 (a) Teledyne Brown Engineering reported result.

(b) The ERA known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

(c) ERA evaluation: A=acceptable. Reported result falls within the Warning Limits. NA=not acceptable. Reported result falls outside of the Control Limits. CE=check for Error. Reported result falls within the Control Limits and outside of the Warning Limit.

D-4

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

TELEDYNE BROWN ENGINEERING, 2014 (PAGE 1 OF 2)

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

March 2014 14-MaW30 Water Am-241 Bq/L 0.764 0.720 0.504 - 0.936 A Cs-134 Bq/L 20.7 23.1 16.2 - 30 0 A Cs-137 Bq/L 28.0 28.9 20.2 - 37.6 A Co-57 Bq/L 26.5 27.5 19.3 - 35.8 A Co-60 Bq/L 15.6 16.0 11.2 - 20.8 A H-3** Bq/L NR 321 225 - 417 N (3)

Mn-54 Bq/L 13.5 13.9 9.7 - 18.1 A Ni-63 Bq/L NR 34.0 23.8 - 44.2 N (3)

Pu-238 Bq/L 0.911 0.828 0.580 - 1.076 Pu-239/240 Bq/L 0.751 0.676 0.473 - 0.879 K-40 Bq/L NR (1) N (3)

Sr-90** Bq/L NR 8.51 5.96 - 11.06 N (3)

U-234/233** Bq/L NR 0.225 0.158 - 0.293 N (3)

U-238** Bq/L NR 1.45 1.02 - 1.89 N (3)

Zn-65 Bq/L -0.201 (1) A 14-MaS30 Soil Cs-134 Bq/kg 2.02 (1) A Cs-137 Bq/kg 1300 1238 867 - 1609 A Co-57 Bq/kg 1069 966 676 - 1256 A Co-60 Bq/kg 1.32 1.22 (2) A Mn-54 Bq/kg 1510 1430 1001 - 1859 A K-40 Bq/kg 669 622 435 - 809 A Sr-90 Bq/kg 4.14 (1) A Zn-65 Bq/kg 763 695 487 - 904 A 14-RdF30 AP Cs-134** Bq/sample NR 1.91 1.34 - 2.48 N (3)

Cs-137** Bq/sample NR 1.76 1.23 - 2.29 N (3)

Co-57** Bq/sample NR (1) N (3)

Co-60** Bq/sample NR 1.39 0.97 - 1.81 N (3)

Mn-54** Bq/sample NR (1) N (3)

Sr-90 Bq/sample 0.8220 1.18 0.83 - 1.53 N (3)

Zn-65** Bq/sample NR (1) N (3) 14-GrF30 AP Gr-A Bq/sample 0.606 1.77 0.53 - 3.01 A Gr-B Bq/sample 0.7507 0.77 0.39 - 1.16 A 14-RdV30 Vegetation Cs-134 Bq/sample 5.96 6.04 4.23 - 7.85 A Cs-137 Bq/sample 5.06 4.74 3.32 - 6.16 A Co-57 Bq/sample 11.8 10.1 7.1 - 13.1 A Co-60 Bq/sample 7.34 6.93 4.85 - 9.01 A Mn-54 Bq/sample 8.95 8.62 6.03 - 11.21 A Sr-90 Bq/sample 1.23 1.46 1.02 - 1.90 A Zn-65 Bq/sample 8.91 7.86 5.50 - 10.22 A D-5

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

TELEDYNE BROWN ENGINEERING, 2014 (PAGE 2 OF 2)

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

September 2014 14-MaW31 Water Am-241 Bq/L 0.705 0.88 0.62 - 1.14 A Cs-134*** Bq/L NR (1) N (4)

Cs-137*** Bq/L NR 18.4 12.9 - 23.9 N (4)

Co-57*** Bq/L NR 24.7 17.3 - 32.1 N (4)

Co-60*** Bq/L NR 12.4 8.7 - 16.1 N (4)

Mn-54*** Bq/L NR 14.0 9.8 - 18.2 N (4)

Ni-63 Bq/L 24.07 24.6 17.2 - 32.0 A Pu-238 Bq/L 0.591 0.618 0.433 - 0.803 A Pu-239/240 Bq/L 0.0153 0.0048 (2) A K-40*** Bq/L NR 161 113 - 209 N (4)

Zn-65*** Bq/L NR 10.9 7.6 - 14.2 N (4) 14-MaS31 Soil Cs-134*** Bq/kg NR 622 435 - 809 N (4)

Cs-137*** Bq/kg NR (1) N (4)

Co-57*** Bq/kg NR 1116 781 - 1451 N (4)

Co-60*** Bq/kg NR 779 545 - 1013 N (4)

Mn-54*** Bq/kg NR 1009 706 - 1312 N (4)

K-40*** Bq/kg NR 824 577 - 1071 N (4)

Sr-90 Bq/kg 694 858 601 - 1115 A Zn-65*** Bq/kg NR 541 379 - 703 N (4) 14-RdF31 AP Sr-90 Bq/sample 0.310 0.703 0.492 - 0.914 N (4) 14-GrF31 AP Gr-A Bq/sample 0.153 0.53 0.16 - 0.90 N (4)

Gr-B Bq/sample 0.977 1.06 0.53 - 1.59 A September 2014 14-RdV31 Vegetation Cs-134 Bq/sample 7.31 7.38 5.17 - 9.59 A Cs-137 Bq/sample 8.93 8.14 5.70 - 10.58 A Co-57 Bq/sample 10.8 9.2 6.4 - 12.0 A Co-60 Bq/sample 6.31 6.11 4.28 - 7.94 A Mn-54 Bq/sample 7.76 7.10 4.97 - 9.23 A Sr-90 Bq/sample 0.738 0.85 0.60 - 1.11 A Zn-65 Bq/sample 7.16 6.42 4.49 - 8.35 A

• The MAPEP cross check isotope list has been reduced due to duplication of effort or analysis not being performed for clients.

• • These nuclides are no longer part of the TBE cross check program due to duplication of effort or analysis not being performed for clients. MAPEP evaluates non-reported analyses as failed if they were reported in the previous series.

• • • All future gamma cross check samples for these isotopes will be provided by Analytics.

(1) False positive test.

(2) Sensitivity evaluation.

(3) Water, Ni-63 overlooked when reporting, but the result of 32.7 +- 1.69 would have passed the acceptance criteria. NCR 14-04 Water , the non-detected K-40 was overlooked when reporting, but would have passed the false positive test. NCR 14-04 AP, Sr-90 rerun was within the low range of the acceptqance criteria. The original and rerun results were statistically the same. No cause could be identified for the slightly low Sr-90 activity. NCR 14-04 For non reported (NR) analyses, MAPEP evaluates as failed if they were reported in the previous series. NCR 14-04 (4) AP, Sr-90 gravimetric yield was very high at 117%. Could indicate larger than normal amounts of calcium in the AP. A second fuming HNO 3 separation would be required to remove the excess calcium. NCR 14-09 AP, Gr-Alpha was counted on the wrong side. When flipped over and recounted the results were acceptable. NCR 14-09 For non reported (NR) analyses, MAPEP evaluates as failed if they were reported in the previous series. NCR 14-09 (a) Teledyne Brown Engineering reported result.

(b) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

(c) DOE/MAPEP evaluation: A=acceptable, W=acceptable with warning, N=not acceptable.

D-6

TABLE D-4 ERA (a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAMa ENVIRONMENTAL, INC., 2014 (Page 1 of 1)

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1384 04/07/14 Sr-89 40.29 +/- 5.76 36.70 27.50 - 43.60 Pass ERW-1384 04/07/14 Sr-90 24.08 +/- 2.35 26.50 19.20 - 30.90 Pass ERW-1385 04/07/14 Ba-133 78.23 +/- 3.93 87.90 74.00 - 96.70 Pass ERW-1385 04/07/14 Co-60 62.75 +/- 3.53 64.20 57.80 - 73.10 Pass ERW-1385 04/07/14 Cs-134 44.97 +/- 3.99 44.30 35.50 - 48.70 Pass ERW-1385 04/07/14 Cs-137 88.54 +/- 4.93 89.10 80.20 - 101.00 Pass ERW-1385 04/07/14 Zn-65 249.1 +/- 10.44 235.0 212.0 - 275.0 Pass ERW-1388 04/07/14 Gr. Alpha 56.70 +/- 2.47 61.00 31.90 - 75.80 Pass ERW-1388 04/07/14 Gr. Beta 32.10 +/- 1.20 33.00 21.40 - 40.70 Pass ERW-1391 04/07/14 I-131 25.52 +/- 1.12 25.70 21.30 - 30.30 Pass ERW-1394 04/07/14 Uranium 10.76 +/- 0.74 10.20 7.95 - 11.80 Pass ERW-1397 04/07/14 H-3 8982 +/- 279 8770 7610 - 9650 Pass ERW-5382 10/06/14 Sr-89 29.40 +/- 5.32 31.40 22.80 - 38.10 Pass ERW-5382 10/06/14 Sr-90 19.19 +/- 1.85 21.80 15.60 - 25.70 Pass ERW-5385 10/06/14 Ba-133 43.54 +/- 4.54 49.10 40.30 - 54.50 Pass ERW-5385 10/06/14 Cs-134 81.95 +/- 7.49 89.80 73.70 - 98.80 Pass ERW-5385 10/06/14 Cs-137 95.76 +/- 5.50 98.80 88.90 - 111.00 Pass ERW-5385 10/06/14 Co-60 90.25 +/- 2.77 92.10 82.90 - 104.00 Pass ERW-5385 10/06/14 Zn-65 327.4 +/- 23.3 310.00 279.0 - 362.0 Pass ERW-5388 10/06/14 Gr. Alpha 30.88 +/- 8.05 37.60 19.40 - 46.10 Pass ERW-5388 10/06/14 G. Beta 20.47 +/- 4.75 27.40 17.30 - 35.30 Pass ERW-5392 10/06/14 I-131 19.58 +/- 2.35 20.30 16.80 - 24.40 Pass ERW-5394 10/06/14 Uranium 5.51 +/- 0.37 5.80 4.34 - 6.96 Pass ERW-5397 10/06/14 H-3 6876 +/- 383 6880 5940 - 7570 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

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

ENVIRONMENTAL, INC., 2014 (Page 1 of 2)

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-1140 02/01/14 Gr. Alpha 0.77 +/- 0.06 0.85 0.26 - 1.44 Pass MAW-1140 02/01/14 Gr. Beta 4.31 +/- 0.08 4.19 2.10 - 6.29 Pass MAW-1184 02/01/14 Fe-55 0.40 +/- 3.20 0.00 -0.01 - 2.00 Pass MAW-1184 02/01/14 H-3 345.10 +/- 10.60 321.00 225.00 - 417.00 Pass MAW-1184 02/01/14 Ni-63 32.40 +/- 3.20 34.00 23.80 - 44.20 Pass MAW-1184 02/01/14 Pu-238 1.28 +/- 0.12 0.83 0.58 - 1.08 Fail (1)

MAW-1184 02/01/14 Pu-239/240 0.91 +/- 0.10 0.68 0.47 - 0.88 Fail (1)

MAW-1184 02/01/14 Sr-90 7.00 +/- 0.70 8.51 5.96 - 11.06 Pass MAW-1184 02/01/14 U-233/234 0.20 +/- 0.07 0.23 0.16 - 0.29 Pass MAW-1184 02/01/14 U-238 1.25 +/- 0.18 1.45 1.02 - 1.89 Pass MAW-1184 02/01/14 Co-57 27.86 +/- 0.38 27.50 19.30 - 35.80 Pass MAW-1184 02/01/14 Co-60 15.99 +/- 0.27 16.00 11.20 - 20.80 Pass MAW-1184 02/01/14 Cs-134 21.85 +/- 0.54 23.10 16.20 - 30.00 Pass MAW-1184 02/01/14 Cs-137 28.74 +/- 0.49 28.90 20.20 - 37.60 Pass MAW-1184 02/01/14 K-40 1.80 +/- 2.00 0.00 0.00 - 10.00 Pass MAW-1184 02/01/14 Mn-54 14.06 +/- 0.40 13.90 9.70 - 18.10 Pass MAW-1184 02/01/14 Zn-65 0.00 +/- 0.19 0.00 -0.01 - 0.00 Pass MAVE-1148 02/01/14 Co-57 11.63 +/- 0.19 10.10 7.10 - 13.10 Pass MAVE-1148 02/01/14 Co-60 7.28 +/- 0.18 6.93 4.85 - 9.01 Pass MAVE-1148 02/01/14 Cs-134 6.29 +/- 0.29 6.04 4.23 - 7.85 Pass MAVE-1148 02/01/14 Cs-137 5.18 +/- 0.20 4.74 3.32 - 6.16 Pass MAVE-1148 02/01/14 Mn-54 9.22 +/- 0.26 8.62 6.03 - 11.21 Pass MAVE-1148 02/01/14 Zn-65 8.59 +/- 0.40 7.86 5.50 - 10.22 Pass MAAP-1151 02/01/14 Co-57 1.60 +/- 0.05 0.00 NA Fail (2)

MAAP-1151 02/01/14 Co-60 1.38 +/- 0.08 1.39 0.97 - 1.81 Pass MAAP-1151 02/01/14 Cs-134 1.75 +/- 0.11 1.91 1.34 - 2.48 Pass MAAP-1151 02/01/14 Cs-137 1.81 +/- 0.10 1.76 1.23 - 2.29 Pass MAAP-1151 02/01/14 Mn-54 0.01 +/- 0.03 0.00 NA Pass MAAP-1151 02/01/14 Zn-65 -0.24 +/- 0.09 0.00 -0.50 - 1.00 Pass MAAP-1151 02/01/14 Sr-90 1.11 +/- 0.14 1.18 0.83 - 1.53 Pass MAAP-1154 02/01/14 Gr. Alpha 0.56 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-1154 02/01/14 Gr. Beta 0.98 +/- 0.06 0.77 0.39 - 1.16 Pass MASO-1146 02/01/14 Ni-63 4.80 +/- 15.30 0.00 NA Pass MASO-1146 02/01/14 Co-57 1064.50 +/- 3.60 966.00 676.00 - 1256.00 Pass MASO-1146 02/01/14 Co-60 1.70 +/- 0.50 1.22 (3) Pass MASO-1146 02/01/14 Cs-134 6.10 +/- 1.80 0.00 NA Fail (4)

MASO-1146 02/01/14 Cs-137 1364.30 +/- 5.30 1238.00 867.00 - 1609.00 Pass MASO-1146 02/01/14 K-40 728.90 +/- 15.90 622.00 435.00 - 809.00 Pass MASO-1146 02/01/14 Mn-54 1588.00 +/- 6.00 1430.00 1001.00 - 1859.00 Pass MASO-1146 02/01/14 Zn-65 763.50 +/- 6.80 695.00 487.00 - 904.00 Pass MASO-1146 02/01/14 Sr-90 1.23 +/- 1.37 0.00 NA Pass D-8

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

ENVIRONMENTAL, INC., 2014 (Page 2 of 2)

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MASO-4439 08/01/14 Ni-63 771.62 +/- 23.29 980.00 686.00 - 1274.00 Pass MASO-4439 08/01/14 Sr-90 778.34 +/- 17.82 858.00 601.00 - 1115.00 Pass MASO-4439 08/01/14 Cs-134 520.60 +/- 7.09 622.00 435.00 - 809.00 Pass MASO-4439 08/01/14 Co-57 1135.00 +/- 7.40 1116.00 781.00 - 1451.00 Pass MASO-4439 08/01/14 Co-60 768.20 +/- 7.70 779.00 545.00 - 1013.00 Pass MASO-4439 08/01/14 Mn-54 1050.70 +/- 12.60 1009.00 706.00 - 1312.00 Pass MASO-4439 08/01/14 Zn-65 407.89 +/- 15.03 541.00 379.00 - 703.00 Pass MAW-4431 08/01/14 Am-241 0.79 +/- 0.08 0.88 0.62 - 1.14 Pass MAW-4431 08/01/14 Cs-137 18.62 +/- 0.54 18.40 12.90 - 23.90 Pass MAW-4431 08/01/14 Co-57 24.85 +/- 0.42 24.70 17.30 - 32.10 Pass MAW-4431 08/01/14 Co-60 12.27 +/- 0.38 12.40 8.70 - 16.10 Pass MAW-4431 08/01/14 H-3 207.20 +/- 10.60 208.00 146.00 - 270.00 Pass MAW-4431 08/01/14 Fe-55 55.10 +/- 14.80 31.50 22.10 - 41.00 Fail (5)

MAW-4431 08/01/14 Mn-54 14.36 +/- 0.53 14.00 9.80 - 18.20 Pass MAW-4431 08/01/14 Zn-65 11.46 +/- 0.78 10.90 7.60 - 14.20 Pass MAW-4493 08/01/14 Gr. Alpha 0.93 +/- 0.07 1.40 0.42 - 2.38 Pass MAW-4493 08/01/14 Gr. Beta 6.31 +/- 1.35 6.50 3.25 - 9.75 Pass MAAP-4433 08/01/14 Sr-90 0.74 +/- 0.10 0.70 0.49 - 0.91 Pass MAAP-4444 08/01/14 Sr-89 7.82 +/- 0.52 9.40 6.60 - 12.20 Pass MAAP-4444 08/01/14 Sr-90 0.76 +/- 0.10 0.76 0.53 - 0.99 Pass MAVE-4436 08/01/14 Cs-134 7.49 +/- 0.18 7.38 5.17 - 9.59 Pass MAVE-4436 08/01/14 Co-57 11.20 +/- 0.19 9.20 6.40 - 12.00 Pass MAVE-4436 08/01/14 Co-60 6.84 +/- 0.17 6.11 4.28 - 7.94 Pass MAVE-4436 08/01/14 Mn-54 8.11 +/- 0.26 7.11 4.97 - 9.23 Pass MAVE-4436 08/01/14 Zn-65 7.76 +/- 0.43 6.42 4.49 - 8.35 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 high bias on the plutonium crosscheck samples was traced to contamination from a newly purchased standard.

The results of reanalysis with replacement tracer purchased from NIST:

MAW-1184 Pu-238 0.68 +/- 0.10 Bq / L MAW-1184 Pu-239/240 0.66 +/- 0.10 Bq / L (2) Interference from Eu-152 resulted in misidentification of Co-57.

(3) Provided in the series for "sensitivity evaluation". MAPEP does not provide control limits.

(4) False positive test. Long sample counting time lead to interference from naturally occuring Bi-214 in sample matrix with a close spectral energy.

(5) Result of reanalysis Fe-55 32.63 +/- 16.30 Bq/L D-9

Intentionally left blank APPENDIX E EFFLUENT DATA

Intentionally left blank TABLE OF CONTENTS INTRODUCTION ................................................................................................................. 1

SUMMARY

........................................................................................................................... 2 1.0. EFFLUENTS ..................................................................................................... 3 1.1. Gaseous Effluents to the Atmosphere .................................................. 3 1.2. Liquids Released to Kankakee River .................................................... 3 2.0. SOLID RADIOACTIVE WASTE ....................................................................... 3 3.0. DOSE TO MAN................................................................................................. 4 3.1. Gaseous Effluent Pathways .................................................................. 4 3.1.1. Noble Gases ............................................................................ 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 & Particulate ............................................. 5 3.2. Liquid Effluent Pathways ....................................................................... 5 3.3. Assessment of Dose to Member of Public ............................................ 6 4.0. SITE METEOROLOGY .................................................................................... 6 i

Table of Contents (cont.)

APPENDIX E-1 DATA TABLES AND FIGURES ............................................................. E-1.1 Station Releases Table 1.1-1 Gaseous Effluents Summation of all Releases ........................ E-1.2 Table 1.2-1 Liquid Effluents Summation of all Releases ............................. E-1.4 Table 3.1-1 Maximum Doses Resulting from Airborne Releases ................ E-1.6 Table 3.2-1 Maximum Doses Resulting from Liquid Effluents ..................... E-1.16 Table 3.3-1 10CFR20 Compliance Assessment .......................................... E-1.26 Table 3.4-1 Maximum Doses Resulting from Airborne Releases Based On Concurrent Meteorological Data ......................................... E-1.28 ii

INTRODUCTION Braidwood Station, a two-unit PWR station, is located in Will County, Illinois, fifteen (15) miles south-southwest of Joliet, Illinois. Each reactor is designed to have a capacity of 3,587 thermal megawatts. Unit No. 1 went critical on May 29, 1987, and Unit No. 2 went critical on March 8, 1988. The station has been designed to keep releases to the environment at levels below those specified in the regulations.

Liquid effluents from Braidwood Station are released to the Kankakee River in controlled batches after radioassay of each batch. Gaseous effluents are released to the atmosphere and are calculated on the basis of analyses of grab samples of noble gases and tritium, as well as continuously collected composite samples of iodine and particulate activity sampled during the course of the year. The results of effluent analyses are summarized on a monthly basis. Airborne concentrations of noble gases, I-131, and particulate radioactivity in offsite areas are calculated using effluent and meteorological data. Carbon-14 concentration in offsite areas is calculated based on industry-approved methodology for estimation of the amount released and meteorological data.

Environmental monitoring is conducted by sampling at indicator and control (background) locations in the vicinity of Braidwood Station to measure changes in radiation or radioactivity levels that may be attributable to station operations. If significant changes attributable to Braidwood Station are measured, these changes are correlated with effluent releases. An environmental monitoring program is conducted which also includes all potential pathways at the site. Gaseous pathways include ground plane (direct), inhalation, vegetation, meat, and milk.

Liquid pathways include potable water and freshwater fish. The critical pathway for 2014 gaseous dose was vegetation. The critical pathway for 2014 liquid dose was fresh water fish.

1

SUMMARY

Calculations based on gaseous and liquid effluents, Kankakee River Flow and meteorological data indicate that public dose due to radioactive material attributable to Braidwood Station during the period does not exceed regulatory or Offsite Dose Calculation Manual (ODCM) limits.

The maximally exposed individuals total body dose due to gaseous and liquid emissions from licensed activities at Braidwood Station is 5.68E-01 mrem.

The assessment of radiation doses to the public is performed in accordance with the ODCM. The results of these analyses confirm that the station is operating in compliance with 10CFR50 Appendix I, 10CFR20 and 40CFR190.

2

1.0 EFFLUENTS 1.1 Gaseous Effluents to the Atmosphere Measured concentrations of noble gases, radioiodine, and particulate radioactivity released to the atmosphere during the year, are listed in Table 1.1-1.

A total of 3.42E-01 curies of fission and activation gases were released with a maximum quarterly average release rate of 1.81E-02 µCi/sec for Unit 1 and 1.59E-02 µCi/sec for Unit 2.

A total of 2.73E-04 curies of radioiodine were released during the year with a maximum average quarterly release rate of 1.04E-05 µCi/sec for Unit 1 and 2.10E-05 µCi/sec for Unit 2.

A total of 1.15E-04 curies of beta-gamma emitters were released as airborne particulate matter with a maximum average release rate of

<LLD µCi/sec for Unit 1 and 2.10E-05 µCi/sec for Unit 2.

Alpha-emitting radionuclides were below the lower limit of detection (LLD) for the year.

A total of 2.71E+02 curies of tritium were released with a maximum average quarterly release rate of 3.70E+00 µCi/sec for Unit 1 and 7.79E+00 µCi/sec for Unit 2.

A total of 8.61E+00 curies of C-14 was released with a maximum average quarterly release rate of 1.41E-01 uCi/sec from Unit 1 and 1.41E-01 uCi/sec from Unit 2.

1.2 Liquids Released to Kankakee River A total of 7.42E+06 liters of radioactive liquid wastes (prior to dilution) containing 9.48E-02 curies (excluding tritium, noble gases and alpha) were discharged from the station. These wastes were released at a maximum quarterly diluted average concentration of 1.29E-08 µCi/ml.

Alpha-emitting radionuclides were less than the LLD for the year. A total of 3.00E+03 curies of tritium were released from the station.

Quarterly release activities are given in Table 1.2-1.

2.0 SOLID RADIOACTIVE WASTE Solid radioactive wastes were shipped by truck to the Envirocare of Utah and Waste Control Specialists disposal facilities and various waste processors.

For details, refer to the Braidwood Station 2014 Radioactive Effluent 3

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.

3.1.1 Noble Gases 3.1.1.1 Gamma Dose Rates Offsite Gamma air and total body dose rates are shown in Table 3.1-1 and were calculated based on measured effluents and average meteorological data. Based on measured effluents and average meteorological data, the maximum total body dose to an individual would be 5.25E-01 mrem for the year (Table 3.1-1) with an occupancy or shielding factor of 0.7 used. The maximum total body dose based on measured effluents and concurrent meteorological data would be 5.39E-01 mrem (Table 3.4-1). The maximum gamma air dose was 7.01E-06 mrad (Table 3.1-1) based on measured effluents and average meteorological data and 1.17E-05 mrad based on concurrent meteorological date (Table 3.4-1).

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 2

mg/cm and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year was 1.71E-05 mrem based on concurrent meteorological data (Table 3.4-1).

4

The maximum offsite beta air dose for the year was 1.66E-05 mrad (Table 3.1-1) based on measured effluents and average meteorological data and 1.71E-05 mrad based on concurrent meteorological data (Table 3.4-1).

3.1.2 Radioactive Iodine & Particulate The human thyroid exhibits a significant capacity to concentrate ingested or inhaled iodine. I-131 released during routine operation of the station may be made available to man resulting in a dose to the thyroid. C-14 is also included in this category. C-14 exhibits a capacity to concentrate in bone.

C-14 is released in gaseous form and is absorbed into vegetation through photosynthesis. The principal pathways of interest for C-14 are the consumption of vegetation by humans and milk from which animals have ingested C-14 through the consumption of vegetation. With the inclusion of C-14 in plant effluent calculations, human dose in this category is primarily driven by the release of C-14 from the plant.

The hypothetical dose to the maximum exposed individual living near the station via ingestion of milk and vegetation was calculated. The source of milk and vegetation was assumed to be at the nearest site boundary with the cows pastured and vegetation grown from May through October. The maximum dose from radioactive iodine and particulate (including C-14) to any organ was 2.31E+00 mrem (child/bone) based on measured effluents and average meteorological data and 2.40E+00 mrem based on concurrent meteorological data.

The maximum dose from radioactive iodine and particulate (including C-14) to the whole body was 5.25E-01 mrem (child) based on measured effluents and average meteorological data and 5.39E-01 mrem based on concurrent meteorological data.

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 or station 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 5

used to calculate the doses to the whole body, lower GI tracts, thyroid, bone and skin; specific parameters for use in the equations are given in the Braidwood Offsite Dose Calculation Manual. The maximum whole body dose and any organ dose for the year was 4.26E-02 mrem and 8.60E-02 mrem, respectively (Table 3.2-1 [adult]).

3.3 Assessment of Dose to Member of Public During the period January to December, 2014, Braidwood Station did not exceed the following limits as shown in Table 3.1-1 and Table 3.2-1 (based on annual average meteorological data), Table 3.4-1 (based on concurrent meteorological data), and Table 3.3-1:

• The RETS limits on dose or dose commitment to an individual due to radioactive materials in liquid effluents from each reactor unit (1.5 mrem to the whole body or 5 mrem to any organ during any calendar year; 3 mrem to the whole body or 10 mrem to any organ during the calendar year).

• The RETS limits on air dose in noble gases released in gaseous effluents to a member of the public from each reactor unit (5 mrads for gamma radiation or 10 mrad for beta radiation during any calendar quarter; 10 mrad for gamma radiation or 20 mrad for beta radiation during a calendar year).

• The RETS limits on dose to a member of the public due to iodine-131, iodine-133, tritium, and radionuclides in particulate form with half-lives greater than eight days in gaseous effluents released from each reactor unit (7.5 mrem to any organ during any calendar quarter; 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) during any calendar year.

4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix F. The data are presented as cumulative joint frequency distributions of the wind direction for the 203 level and wind speed class by atmospheric stability class determined from the temperature difference between the 199 and 30 levels. Data recovery for these measurements was 99.8% during 2014.

6

APPENDIX E-1 DATA TABLES AND FIGURES

Intentionally left blank Table 1.1-1 BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2014 GAS RELEASES UNIT 1 (Docket Number 50-456)

SUMMATION OF ALL RELEASES Est. Total Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Error%

A. Fission and Activation Gas Releases

1. Total Release Activity Ci 1.15E-02 1.42E-01 <LLD 5.19E-02 7.59E+00

2. Average Release Rate µCi/sec 1.48E-04 1.81E-02 <LLD 6.53E-03

3. Percent of ODCM Limit - gamma  % 1.83E-06 1.00E-04 N/A 3.66E-06

4. Percent of ODCM Limit - beta  % 4.43E-06 7.76E-05 N/A 2.12E-05 B. Iodine Releases

1. Total Iodine Ci 2.44E-05 8.19E-05 8.36E-07 6.05E-07 3.32E+01

2. Average Release Rate µCi/sec 3.14E-06 1.04E-05 1.05E-07 7.61E-08

3. Percent of ODCM Limit  % 1.17E-04 6.84E-05 6.08E-06 5.79E-06 C. Particulate (> 8 day half-life) Releases

1. Particulates with half-lives > 8 days Ci <LLD <LLD <LLD <LLD 1.98E+01

2. Average Release Rate µCi/sec <LLD <LLD <LLD <LLD

3. Percent of ODCM Limit  % N/A N/A N/A N/A

4. Gross Alpha Radioactivity Ci <LLD <LLD <LLD <LLD D. Tritium Releases

1. Total Release Activity Ci 1.87E+01 2.92E+01 2.33E+01 2.16E+01 8.07E+00

2. Average Release Rate µCi/sec 2.40E+00 3.70E+00 2.92E+00 2.70E+00

3. Percent of ODCM Limit  % 5.33E-02 8.30E-02 6.62E-02 6.14E-02 E. Gross Alpha Releases

1. Total Release Activity Ci <LLD <LLD <LLD <LLD 1.98E+01

2. Average Release Rate µCi/sec <LLD <LLD <LLD <LLD

3. Percent of ODCM limit  % N/A N/A N/A N/A F. Carbon-14 Releases

1. Total Release Activity Ci 1.10E+00 1.11E+00 1.12E+00 1.11E+00

2. Average Release Rate µCi/sec 1.41E-01 1.41E-01 1.41E-01 1.40E-01 Note: LLD Values are included in Appendix A of this report.

E-1.1

Table 1.1-1 BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2014 GAS RELEASES UNIT 2 (Docket Number 50-457)

SUMMATION OF ALL RELEASES Est. Total Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Error%

A. Fission and Activation Gas Releases

1. Total Activity Released Ci 1.15E-02 1.25E-01 <LLD <LLD 7.59E+00

2. Average Release Rate µCi/sec 1.48E-03 1.59E-02 <LLD <LLD

3. Percent of ODCM Limit - gamma  % 1.83E-06 3.27E-05 N/A N/A

4. Percent of ODCM Limit - beta  % 4.43E-06 5.83E-05 N/A N/A B. Iodine Releases

1. Total Iodine Ci <LLD 1.65E-04 <LLD <LLD 3.32E+01

2. Average Release Rate µCi/sec <LLD 2.10E-05 <LLD <LLD

3. Percent of ODCM Limit  % N/A 1.26E-05 N/A N/A C. Particulate (> 8 day half-life) Releases

1. Particulates with half-lives > 8 days Ci <LLD 1.15E-04 <LLD <LLD 1.98E+01

2. Average Release Rate µCi/sec <LLD 1.46E-05 <LLD <LLD

3. Percent of OCDM Limit  % N/A 6.25E-04 N/A N/A

4. Gross Alpha Radioactivity Ci <LLD <LLD <LLD <LLD D. Tritium Releases

1. Total Release Activity Ci 3.24E+01 6.12E+01 4.45E+01 3.95E+01 8.07E+00

2. Average Release Rate µCi/sec 4.17E+00 7.79E+00 5.60E+00 4.97E+00

3. Percent of ODCM Limit  % 9.19E-02 1.73E-01 1.26E-01 1.12E-01 E. Gross Alpha Releases

1. Total Release Activity Ci <LLD <LLD <LLD <LLD 1.98E+01

2. Average Release Rate µCi/sec <LLD <LLD <LLD <LLD

3. Percent of ODCM Limit  % N/A N/A N/A N/A F. Carbon-14 Releases

1. Total Release Activity Ci 1.10E+00 8.35E-01 1.12E+00 1.11E+00

2. Average Release Rate µCi/sec 1.41E-01 1.06E-01 1.41E-01 1.40E-01 Note: LLD Values are included in Appendix A of this report.

E-1.2

Table 1.2-1 BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2014 LIQUID RELEASES UNIT 1 (Docket Number 50-456)

SUMMATION OF ALL RELEASES Est. Total Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Error %

A. Fission and Activation Products

1. Total Release Ci 2.28E-03 3.52E-02 8.18E-03 1.74E-03 2.64E+00

2. Average Diluted Concentration µCi/ml 1.38E-10 6.46E-09 5.48E-10 1.17E-10

3. Percent of applicable limit  % * * *

• B. Tritium

1. Total Release Ci 4.23E+02 7.05E+02 1.80E+02 1.96E+02 5.85E+00

2. Average Diluted Concentration µCi/ml 2.56E-05 1.29E-04 1.21E-05 1.32E-05

3.  % of Limit (1E-2 µCi/ml)  % 2.56E-01 1.29E+00 1.21E-01 1.32E-01 C. Dissolved Noble Gases

1. Total Release Ci <LLD <LLD 3.84E-06 <LLD 2.64E+00

2. Average Diluted Concentration µCi/ml <LLD <LLD 2.57E-13 <LLD

3.  % of Limit (2E-4 µCi/ml)  % N/A N/A 1.29E-07 N/A D. Gross Alpha A. Total Release Ci <LLD <LLD <LLD <LLD 1.47E+01 E. Volume of Waste Released liters 9.47E+05 1.41E+06 7.69E+05 5.84E+05 (prior to dilution)

F. Volume of Dilution Water liters 1.65E+10 5.45E+09 1.49E+10 1.49E+10 Note: LLD Values are included in Appendix A of this report.

Note: % Limit Values are included in Appendix C of this report.

• This limit is equal to 10 times the concentration values in Appendix B, Table 2, Column 2 to 10CFR20.1001-20.2402.

E-1.3

Table 1.2-1 BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2014 LIQUID RELEASES UNIT 2 (Docket Number 50-457)

SUMMATION OF ALL RELEASES Est. Total Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Error %

A. Fission and Activation Products

1. Total Release Ci 2.28E-03 3.52E-02 8.18E-03 1.74E-03 2.64E+00

2. Average Diluted Concentration µCi/ml 1.38E-10 6.46E-09 5.48E-10 1.17E-10

3. Percent of applicable limit  % * * *

• B. Tritium

1. Total Release Ci 4.23E+02 7.05E+02 1.80E+02 1.96E+02 5.85E+00

2. Average Diluted Concentration µCi/ml 2.56E-05 1.29E-04 1.21E-05 1.32E-05

3. % of Limit (1E-2 µCi/ml)  % 2.56E-01 1.29E+00 1.21E-01 1.32E-01 C. Dissolved Noble Gases

1. Total Activity Released Ci <LLD <LLD 3.84E-06 <LLD 2.64E+00

2. Average Diluted Concentration µCi/ml <LLD <LLD 2.57E-13 <LLD

3.  % of Limit (2E-4 µCi/ml)  % N/A N/A 1.29E-07 N/A D. Gross Alpha

1. Total Release Ci <LLD <LLD <LLD <LLD 1.47E+01 E. Volume of Waste Released liters 9.47E+05 1.41E+06 7.69E+05 5.84E+05 (prior to dilution)

F. Volume of Dilution Water liters 1.65E+10 5.45E+09 1.49E+10 1.49E+10 Note: LLD Values are included in Appendix A of this report.

Note: % Limit Values are included in Appendix C of this report.

• This limit is equal to 10 times the concentration values in Appendix B, Table 2, Column 2 to 10CFR20.1001-2402.

E-1.4

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 1

RELEASE DATA ============================================================

Total Release Duration (minutes)...................................... 5.441E+05 Total Release Volume (cf)............................................. 8.248E+10 Average Release Flowrate (cfm)........................................ 1.516E+05 Average Period Flowrate (cfm)......................................... 1.569E+05

NUCLIDE DATA ============================================================

Average ECrcent Nuclide uCi uCi/cc Ratio EC AR-41 1.61E+04 6.88E-12 6.88E-04 1.00E-08 KR-85M 0.00E+00 0.00E+00 0.00E+00 1.00E-07 KR-85 0.00E+00 0.00E+00 0.00E+00 7.00E-07 KR-87 0.00E+00 0.00E+00 0.00E+00 2.00E-08 XE-133M 2.54E+03 1.09E-12 1.81E-06 6.00E-07 KR-89 0.00E+00 0.00E+00 0.00E+00 1.00E-09 KR-83M 0.00E+00 0.00E+00 0.00E+00 5.00E-05 KR-88 0.00E+00 0.00E+00 0.00E+00 9.00E-09 XE-131M 5.19E+04 2.22E-11 1.11E-05 2.00E-06 XE-135 1.80E+04 7.72E-12 1.10E-04 7.00E-08 XE-133 1.16E+05 4.98E-11 9.96E-05 5.00E-07 F&AG 2.05E+05 8.77E-11 9.11E-04 I-131 5.09E+00 2.18E-15 1.09E-05 2.00E-10 I-132 3.98E+01 1.70E-14 8.52E-07 2.00E-08 I-133 5.64E+01 2.41E-14 2.41E-05 1.00E-09 I-134 9.88E-01 4.23E-16 7.05E-09 6.00E-08 I-135 5.55E+00 2.37E-15 3.96E-07 6.00E-09 Iodine 1.08E+02 4.61E-14 3.63E-05 C-14 4.45E+06 1.90E-09 6.34E-01 3.00E-09 Other 4.45E+06 1.90E-09 6.34E-01 E-1.5

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 1

NUCLIDE DATA ============================================================

Average ECrcent Nuclide uCi uCi/cc Ratio EC H-3 9.28E+07 3.97E-08 3.97E-01 1.00E-07 H-3 9.28E+07 3.97E-08 3.97E-01 CO-60 0.00E+00 0.00E+00 0.00E+00 5.00E-11 P>=8 0.00E+00 0.00E+00 0.00E+00 Total 9.74E+07 4.17E-08 1.03E+00 E-1.6

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 1 Receptor.............: 5 Composite Crit. Receptor - IP Distance (meters)....: 610.0 Compass Point........: 0.0

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

Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AGPD 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 0.00E+00 1.51E-07 AINHL 2.98E-03 3.01E-03 3.02E-03 3.01E-03 3.01E-03 3.01E-03 0.00E+00 3.01E-03 AVEG 1.47E-01 3.37E-02 3.38E-02 3.37E-02 3.37E-02 3.37E-02 0.00E+00 3.37E-02 AGMILK 4.40E-03 3.91E-03 4.39E-03 3.92E-03 3.91E-03 3.91E-03 0.00E+00 3.91E-03 ACMEAT 5.45E-02 1.15E-02 1.15E-02 1.15E-02 1.15E-02 1.15E-02 0.00E+00 1.15E-02 ACMILK 5.94E-02 1.34E-02 1.38E-02 1.34E-02 1.34E-02 1.34E-02 0.00E+00 1.34E-02 TGPD 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 0.00E+00 1.51E-07 TINHL 4.25E-03 3.27E-03 3.28E-03 3.27E-03 3.27E-03 3.27E-03 0.00E+00 3.27E-03 TVEG 2.37E-01 5.26E-02 5.27E-02 5.26E-02 5.26E-02 5.26E-02 0.00E+00 5.26E-02 TGMILK 7.95E-03 5.53E-03 6.29E-03 5.54E-03 5.53E-03 5.53E-03 0.00E+00 5.53E-03 TCMEAT 4.60E-02 9.57E-03 9.58E-03 9.57E-03 9.57E-03 9.57E-03 0.00E+00 9.57E-03 TCMILK 1.10E-01 2.39E-02 2.45E-02 2.39E-02 2.39E-02 2.39E-02 0.00E+00 2.39E-02 CGPD 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 0.00E+00 1.51E-07 CINHL 5.87E-03 3.29E-03 3.30E-03 3.29E-03 3.29E-03 3.29E-03 0.00E+00 3.29E-03 CVEG 5.73E-01 1.23E-01 1.23E-01 1.23E-01 1.23E-01 1.23E-01 0.00E+00 1.23E-01 CGMILK 2.55E-01 6.01E-02 6.16E-02 6.01E-02 6.01E-02 6.01E-02 0.00E+00 6.01E-02 CCMEAT 8.65E-02 1.78E-02 1.78E-02 1.78E-02 1.78E-02 1.78E-02 0.00E+00 1.78E-02 CCMILK 2.70E-01 5.69E-02 5.82E-02 5.69E-02 5.69E-02 5.69E-02 0.00E+00 5.69E-02 IGPD 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 1.51E-07 0.00E+00 1.51E-07 IINHL 4.34E-03 2.13E-03 2.14E-03 2.13E-03 2.13E-03 2.13E-03 0.00E+00 2.13E-03 IGMILK 5.28E-01 1.22E-01 1.26E-01 1.22E-01 1.22E-01 1.22E-01 0.00E+00 1.22E-01 ICMILK 5.28E-01 1.17E-01 1.20E-01 1.17E-01 1.17E-01 1.17E-01 0.00E+00 1.17E-01

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 2.68E-01 6.55E-02 6.65E-02 6.55E-02 6.55E-02 6.55E-02 0.00E+00 6.55E-02 TEEN 4.05E-01 9.49E-02 9.64E-02 9.49E-02 9.49E-02 9.49E-02 0.00E+00 9.49E-02 CHILD 1.19E+00 2.61E-01 2.64E-01 2.61E-01 2.61E-01 2.61E-01 0.00E+00 2.61E-01 INFANT 1.06E+00 2.42E-01 2.48E-01 2.42E-01 2.42E-01 2.42E-01 0.00E+00 2.42E-01 E-1.7

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 1 Receptor.............: 5 Composite Crit. Receptor - IP Distance (meters)....: 610.0 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 BONE 1.19E+00 31-day 2.25E-01 5.29E+02 3.00E-01 3.97E+02 Qrtr->End CHILD BONE 1.19E+00 Quarter 5.63E+00 2.12E+01 7.50E+00 1.59E+01 Year->End CHILD BONE 1.19E+00 Annual 1.13E+01 1.06E+01 1.50E+01 7.93E+00 Critical Pathway........: 2 Vegetation (VEG)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 0.00E+00 C-14 1.00E+02 CO-60 0.00E+00 I-131 6.79E-04 I-132 2.43E-06 I-133 1.11E-04 I-134 2.29E-08 I-135 7.42E-07 E-1.8

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 1

MAXIMUM PERIOD DOSE TO LIMIT (Tot Body)) ================================

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

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 2.61E-01 31-day 1.50E-01 1.74E+02 2.00E-01 1.30E+02 Qrtr->End CHILD TBODY 2.61E-01 Quarter 5.25E+00 4.96E+00 7.50E+00 3.47E+00 Year->End CHILD TBODY 2.61E-01 Annual 1.05E+01 2.48E+00 1.50E+01 1.74E+00 Critical Pathway........: 2 Vegetation (VEG)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 7.60E+00 C-14 9.25E+01 CO-60 0.00E+00 I-131 1.78E-03 I-132 1.10E-05 I-133 2.52E-04 I-134 1.02E-07 I-135 3.30E-06 E-1.9

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 1 Receptor.............: 4 Composite Crit. Receptor - NG Distance (meters)....: 610.0 Compass Point........: 0.0

MAXIMUM PERIOD NG DOSE TO LIMIT (Gamma) =================================

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

Period Dose Type (mrad) Period Limit of Limit Limit of Limit Strt->End Gamma 5.28E-06 31-day 1.50E-01 3.52E-03 2.00E-01 2.64E-03 Qrtr->End Gamma 5.28E-06 Quarter 3.75E+00 1.41E-04 5.00E+00 1.06E-04 Year->End Gamma 5.28E-06 Annual 7.50E+00 7.04E-05 1.00E+01 5.28E-05 Major Contributors......: 0.0 % or greater to total Nuclide Percentage AR-41 6.38E+01 KR-85M 0.00E+00 KR-85 0.00E+00 KR-87 0.00E+00 XE-133M 3.55E-01 KR-89 0.00E+00 KR-83M 0.00E+00 KR-88 0.00E+00 XE-131M 3.46E+00 XE-135 1.48E+01 XE-133 1.75E+01 E-1.10

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 1

MAXIMUM PERIOD NG DOSE TO LIMIT (Beta)) =================================

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

Period Dose Type (mrad) Period Limit of Limit Limit of Limit Strt->End Beta 1.03E-05 31-day 3.00E-01 3.44E-03 4.00E-01 2.58E-03 Qrtr->End Beta 1.03E-05 Quarter 7.50E+00 1.38E-04 1.00E+01 1.03E-04 Year->End Beta 1.03E-05 Annual 1.50E+01 6.89E-05 2.00E+01 5.16E-05 Major Contributors......: 0.0 % or greater to total Nuclide Percentage AR-41 1.88E+01 KR-85M 0.00E+00 KR-85 0.00E+00 KR-87 0.00E+00 XE-133M 1.34E+00 KR-89 0.00E+00 KR-83M 0.00E+00 KR-88 0.00E+00 XE-131M 2.05E+01 XE-135 1.58E+01 XE-133 4.35E+01 E-1.11

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 2

RELEASE DATA ============================================================

Total Release Duration (minutes)...................................... 5.570E+05 Total Release Volume (cf)............................................. 6.836E+10 Average Release Flowrate (cfm)........................................ 1.227E+05 Average Period Flowrate (cfm)......................................... 1.301E+05

NUCLIDE DATA ============================================================

Average ECrcent Nuclide uCi uCi/cc Ratio EC AR-41 0.00E+00 0.00E+00 0.00E+00 1.00E-08 KR-85M 0.00E+00 0.00E+00 0.00E+00 1.00E-07 KR-85 0.00E+00 0.00E+00 0.00E+00 7.00E-07 KR-87 0.00E+00 0.00E+00 0.00E+00 2.00E-08 XE-133M 2.54E+03 1.31E-12 2.19E-06 6.00E-07 KR-89 0.00E+00 0.00E+00 0.00E+00 1.00E-09 KR-88 0.00E+00 0.00E+00 0.00E+00 9.00E-09 XE-131M 0.00E+00 0.00E+00 0.00E+00 2.00E-06 XE-135 1.80E+04 9.32E-12 1.33E-04 7.00E-08 XE-133 1.16E+05 6.01E-11 1.20E-04 5.00E-07 F&AG 1.37E+05 7.07E-11 2.56E-04 I-131 2.84E-01 1.47E-16 7.33E-07 2.00E-10 I-132 1.65E+02 8.52E-14 4.26E-06 2.00E-08 Iodine 1.65E+02 8.54E-14 4.99E-06 C-14 4.17E+06 2.15E-09 7.17E-01 3.00E-09 Other 4.17E+06 2.15E-09 7.17E-01 E-1.12

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 2

NUCLIDE DATA ============================================================

Average ECrcent Nuclide uCi uCi/cc Ratio EC H-3 1.78E+08 9.17E-08 9.17E-01 1.00E-07 H-3 1.78E+08 9.17E-08 9.17E-01 CO-60 0.00E+00 0.00E+00 0.00E+00 5.00E-11 CE-144 1.15E+02 5.96E-14 2.98E-03 2.00E-11 P>=8 1.15E+02 5.96E-14 2.98E-03 Total 1.82E+08 9.40E-08 1.64E+00 E-1.13

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 2 Receptor.............: 5 Composite Crit. Receptor - IP Distance (meters)....: 610.0 Compass Point........: 0.0

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

Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AGPD 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 0.00E+00 4.29E-06 AINHL 2.81E-03 5.22E-03 5.22E-03 5.22E-03 5.25E-03 5.22E-03 0.00E+00 5.22E-03 AVEG 1.38E-01 3.59E-02 3.59E-02 3.59E-02 3.59E-02 3.65E-02 0.00E+00 3.59E-02 AGMILK 4.12E-03 6.63E-03 6.65E-03 6.63E-03 6.63E-03 6.63E-03 0.00E+00 6.63E-03 ACMEAT 5.11E-02 1.14E-02 1.14E-02 1.14E-02 1.14E-02 1.15E-02 0.00E+00 1.14E-02 ACMILK 5.57E-02 1.40E-02 1.40E-02 1.40E-02 1.40E-02 1.40E-02 0.00E+00 1.40E-02 TGPD 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 0.00E+00 4.29E-06 TINHL 4.01E-03 5.49E-03 5.48E-03 5.49E-03 5.54E-03 5.49E-03 0.00E+00 5.48E-03 TVEG 2.22E-01 5.43E-02 5.43E-02 5.43E-02 5.43E-02 5.51E-02 0.00E+00 5.43E-02 TGMILK 7.45E-03 9.04E-03 9.08E-03 9.04E-03 9.04E-03 9.04E-03 0.00E+00 9.04E-03 TCMEAT 4.31E-02 9.34E-03 9.34E-03 9.34E-03 9.34E-03 9.36E-03 0.00E+00 9.34E-03 TCMILK 1.03E-01 2.42E-02 2.43E-02 2.42E-02 2.42E-02 2.43E-02 0.00E+00 2.42E-02 CGPD 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 0.00E+00 4.29E-06 CINHL 5.53E-03 5.22E-03 5.22E-03 5.22E-03 5.27E-03 5.22E-03 0.00E+00 5.22E-03 CVEG 5.37E-01 1.22E-01 1.22E-01 1.22E-01 1.22E-01 1.23E-01 0.00E+00 1.22E-01 CGMILK 2.39E-01 6.24E-02 6.25E-02 6.24E-02 6.24E-02 6.24E-02 0.00E+00 6.24E-02 CCMEAT 8.11E-02 1.71E-02 1.71E-02 1.71E-02 1.71E-02 1.71E-02 0.00E+00 1.71E-02 CCMILK 2.53E-01 5.63E-02 5.64E-02 5.63E-02 5.63E-02 5.63E-02 0.00E+00 5.63E-02 IGPD 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 4.29E-06 0.00E+00 4.29E-06 IINHL 4.08E-03 3.23E-03 3.22E-03 3.22E-03 3.26E-03 3.22E-03 0.00E+00 3.22E-03 IGMILK 4.95E-01 1.24E-01 1.24E-01 1.24E-01 1.24E-01 1.24E-01 0.00E+00 1.24E-01 ICMILK 4.95E-01 1.15E-01 1.15E-01 1.15E-01 1.15E-01 1.15E-01 0.00E+00 1.15E-01

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 2.51E-01 7.31E-02 7.32E-02 7.31E-02 7.32E-02 7.38E-02 0.00E+00 7.31E-02 TEEN 3.80E-01 1.02E-01 1.02E-01 1.02E-01 1.02E-01 1.03E-01 0.00E+00 1.02E-01 CHILD 1.12E+00 2.64E-01 2.64E-01 2.64E-01 2.64E-01 2.64E-01 0.00E+00 2.64E-01 INFANT 9.95E-01 2.42E-01 2.42E-01 2.42E-01 2.42E-01 2.42E-01 0.00E+00 2.42E-01 E-1.14

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 2 Receptor.............: 5 Composite Crit. Receptor - IP Distance (meters)....: 610.0 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 BONE 1.12E+00 31-day 2.25E-01 4.96E+02 3.00E-01 3.72E+02 Qrtr->End CHILD BONE 1.12E+00 Quarter 5.63E+00 1.98E+01 7.50E+00 1.49E+01 Year->End CHILD BONE 1.12E+00 Annual 1.13E+01 9.92E+00 1.50E+01 7.44E+00 Critical Pathway........: 2 Vegetation (VEG)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 0.00E+00 C-14 1.00E+02 CO-60 0.00E+00 I-131 4.03E-05 I-132 1.08E-05 CE-144 3.66E-03

MAXIMUM PERIOD DOSE TO LIMIT (Tot Body)) ================================

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

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 2.64E-01 31-day 1.50E-01 1.76E+02 2.00E-01 1.32E+02 Qrtr->End CHILD TBODY 2.64E-01 Quarter 5.25E+00 5.02E+00 7.50E+00 3.51E+00 Year->End CHILD TBODY 2.64E-01 Annual 1.05E+01 2.51E+00 1.50E+01 1.76E+00 Critical Pathway........: 2 Vegetation (VEG)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 1.43E+01 C-14 8.58E+01 CO-60 0.00E+00 I-131 9.79E-05 I-132 4.48E-05 CE-144 2.33E-03 E-1.15

Table 3.1-1 RETDAS v3.6.3 <BRA> VSSI GASEOUS RELEASE AND DOSE

SUMMARY

REPORT - BY UNIT (Composite Critical Receptor - Limited Analysis)

Release ID...........: 1 All Gas Release Types Period Start Date....: 01/01/2014 00:00 Period End Date......: 01/01/2015 00:00 Period Duration (min): 5.256E+05 Coefficient Type.....: Historical Unit.................: 2 Receptor.............: 4 Composite Crit. Receptor - NG Distance (meters)....: 610.0 Compass Point........: 0.0

MAXIMUM PERIOD NG DOSE TO LIMIT (Gamma) =================================

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

Period Dose Type (mrad) Period Limit of Limit Limit of Limit Strt->End Gamma 1.73E-06 31-day 1.50E-01 1.15E-03 2.00E-01 8.64E-04 Qrtr->End Gamma 1.73E-06 Quarter 3.75E+00 4.61E-05 5.00E+00 3.46E-05 Year->End Gamma 1.73E-06 Annual 7.50E+00 2.30E-05 1.00E+01 1.73E-05 Major Contributors......: 0.0 % or greater to total Nuclide Percentage AR-41 0.00E+00 KR-85M 0.00E+00 KR-85 0.00E+00 KR-87 0.00E+00 XE-133M 1.09E+00 KR-89 0.00E+00 KR-88 0.00E+00 XE-131M 0.00E+00 XE-135 4.53E+01 XE-133 5.37E+01

MAXIMUM PERIOD NG DOSE TO LIMIT (Beta)) =================================

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

Period Dose Type (mrad) Period Limit of Limit Limit of Limit Strt->End Beta 6.27E-06 31-day 3.00E-01 2.09E-03 4.00E-01 1.57E-03 Qrtr->End Beta 6.27E-06 Quarter 7.50E+00 8.36E-05 1.00E+01 6.27E-05 Year->End Beta 6.27E-06 Annual 1.50E+01 4.18E-05 2.00E+01 3.13E-05 Major Contributors......: 0.0 % or greater to total Nuclide Percentage AR-41 0.00E+00 KR-85M 0.00E+00 KR-85 0.00E+00 KR-87 0.00E+00 XE-133M 2.21E+00 KR-89 0.00E+00 KR-88 0.00E+00 XE-131M 0.00E+00 XE-135 2.61E+01 XE-133 7.17E+01 E-1.16

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05 Unit..................: 1

MULTIPLE RELEASE POINT MESSAGE ==========================================

Undiluted and Diluted Flowrate(s) and Concentration(s) cannot be combined.

RELEASE DATA ===========================================================

Total Release Duration (minutes)..................................... 1.630E+06 Total Undiluted Volume Released (gallons)............................ NA Average Undiluted Flowrate (gpm)..................................... NA Total Dilution Volume (gallons)...................................... NA Average Dilution Flowrate (gpm)...................................... NA

NUCLIDE DATA ============================================================

Nuclide uCi CO-57 1.20E+02 NB-97 4.01E+02 SN-113 2.57E+02 SB-124 3.12E+01 SB-125 2.18E+03 TE-123M 2.39E+02 CR-51 1.85E+03 MN-54 7.40E+02 FE-59 1.39E+02 CO-58 1.30E+04 CO-60 1.49E+04 ZN-65 8.71E+01 ZR-95 3.97E+02 NB-95 8.64E+02 AG-110M 2.63E+02 TE-125M 4.06E+03 I-133 9.91E-01 Gamma 3.95E+04 XE-133 3.84E+00 D&EG 3.84E+00 E-1.17

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05

NUCLIDE DATA ============================================================

Nuclide uCi H-3 1.50E+09 FE-55 6.37E+03 NI-63 1.48E+03 Beta 1.50E+09 Total 1.50E+09 E-1.18

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05 Unit..................: 1 Receptor..............: 0 Liquid Receptor

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

Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB APWtr 1.95E-05 1.29E-02 1.29E-02 1.29E-02 1.29E-02 1.30E-02 0.00E+00 1.29E-02 AFWFSp 1.07E-03 5.79E-03 5.41E-03 6.17E-03 5.39E-03 3.00E-02 0.00E+00 5.67E-03 TPWtr 1.86E-05 9.12E-03 9.11E-03 9.11E-03 9.12E-03 9.17E-03 0.00E+00 9.12E-03 TFWFSp 1.11E-03 4.55E-03 4.17E-03 4.21E-03 4.15E-03 2.16E-02 0.00E+00 4.44E-03 CPWtr 5.64E-05 1.75E-02 1.75E-02 1.75E-02 1.75E-02 1.75E-02 0.00E+00 1.75E-02 CFWFSp 1.44E-03 3.79E-03 3.48E-03 3.48E-03 3.44E-03 9.69E-03 0.00E+00 3.77E-03 IPWtr 4.48E-05 1.72E-02 1.72E-02 1.72E-02 1.72E-02 1.72E-02 0.00E+00 1.72E-02

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 1.09E-03 1.87E-02 1.84E-02 1.91E-02 1.83E-02 4.30E-02 0.00E+00 1.86E-02 TEEN 1.13E-03 1.37E-02 1.33E-02 1.33E-02 1.33E-02 3.08E-02 0.00E+00 1.36E-02 CHILD 1.50E-03 2.13E-02 2.10E-02 2.10E-02 2.09E-02 2.72E-02 0.00E+00 2.13E-02 INFANT 4.48E-05 1.72E-02 1.72E-02 1.72E-02 1.72E-02 1.72E-02 0.00E+00 1.72E-02 E-1.19

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05 Unit..................: 1 Receptor..............: 0 Liquid Receptor

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 ADULT GILLI 4.30E-02 31-day 1.50E-01 2.87E+01 2.00E-01 2.15E+01 Qrtr->End ADULT GILLI 4.30E-02 Quarter 3.75E+00 1.15E+00 5.00E+00 8.61E-01 Year->End ADULT GILLI 4.30E-02 Annual 7.50E+00 5.74E-01 1.00E+01 4.30E-01 Critical Pathway........: 1 Fresh Water Fish - Sport (FFSP)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 4.25E+01 CR-51 2.35E-02 MN-54 3.93E-01 FE-55 6.67E-02 FE-59 4.53E-02 CO-58 9.62E-01 CO-60 2.95E+00 NI-63 2.67E-02 ZN-65 1.59E-01 ZR-95 6.32E-03 NB-95 5.11E+01 AG-110M 6.69E-03 TE-125M 1.65E+00 I-133 3.56E-06 E-1.20

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05

MAXIMUM PERIOD DOSE TO LIMIT (Tot Body)) ================================

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

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 2.13E-02 31-day 4.50E-02 4.73E+01 6.00E-02 3.55E+01 Qrtr->End CHILD TBODY 2.13E-02 Quarter 1.13E+00 1.89E+00 1.50E+00 1.42E+00 Year->End CHILD TBODY 2.13E-02 Annual 2.25E+00 9.46E-01 3.00E+00 7.10E-01 Critical Pathway........: 0 Potable Water (PWtr)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 9.82E+01 CR-51 2.10E-04 MN-54 5.35E-02 FE-55 7.89E-02 FE-59 1.21E-02 CO-58 2.44E-01 CO-60 7.94E-01 NI-63 1.77E-01 ZN-65 2.48E-01 ZR-95 4.46E-06 NB-95 1.01E-02 AG-110M 3.31E-05 TE-125M 1.56E-01 I-133 3.36E-06 E-1.21

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05 Unit..................: 2

MULTIPLE RELEASE POINT MESSAGE ==========================================

Undiluted and Diluted Flowrate(s) and Concentration(s) cannot be combined.

RELEASE DATA ===========================================================

Total Release Duration (minutes)..................................... 1.630E+06 Total Undiluted Volume Released (gallons)............................ NA Average Undiluted Flowrate (gpm)..................................... NA Total Dilution Volume (gallons)...................................... NA Average Dilution Flowrate (gpm)...................................... NA

NUCLIDE DATA ============================================================

Nuclide uCi CO-57 1.20E+02 NB-97 4.01E+02 SN-113 2.57E+02 SB-124 3.12E+01 SB-125 2.18E+03 TE-123M 2.39E+02 CR-51 1.85E+03 MN-54 7.40E+02 FE-59 1.39E+02 CO-58 1.30E+04 CO-60 1.49E+04 ZN-65 8.71E+01 ZR-95 3.97E+02 NB-95 8.64E+02 AG-110M 2.63E+02 TE-125M 4.06E+03 I-133 9.91E-01 Gamma 3.95E+04 E-1.22

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05

NUCLIDE DATA ============================================================

Nuclide uCi XE-133 3.84E+00 D&EG 3.84E+00 H-3 1.50E+09 FE-55 6.37E+03 NI-63 1.48E+03 Beta 1.50E+09 Total 1.50E+09 E-1.23

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05 Unit..................: 2 Receptor..............: 0 Liquid Receptor

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

Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB APWtr 1.95E-05 1.29E-02 1.29E-02 1.29E-02 1.29E-02 1.30E-02 0.00E+00 1.29E-02 AFWFSp 1.07E-03 5.79E-03 5.41E-03 6.17E-03 5.39E-03 3.00E-02 0.00E+00 5.67E-03 TPWtr 1.86E-05 9.12E-03 9.11E-03 9.11E-03 9.12E-03 9.17E-03 0.00E+00 9.12E-03 TFWFSp 1.11E-03 4.55E-03 4.17E-03 4.21E-03 4.15E-03 2.16E-02 0.00E+00 4.44E-03 CPWtr 5.64E-05 1.75E-02 1.75E-02 1.75E-02 1.75E-02 1.75E-02 0.00E+00 1.75E-02 CFWFSp 1.44E-03 3.79E-03 3.48E-03 3.48E-03 3.44E-03 9.69E-03 0.00E+00 3.77E-03 IPWtr 4.48E-05 1.72E-02 1.72E-02 1.72E-02 1.72E-02 1.72E-02 0.00E+00 1.72E-02

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 1.09E-03 1.87E-02 1.84E-02 1.91E-02 1.83E-02 4.30E-02 0.00E+00 1.86E-02 TEEN 1.13E-03 1.37E-02 1.33E-02 1.33E-02 1.33E-02 3.08E-02 0.00E+00 1.36E-02 CHILD 1.50E-03 2.13E-02 2.10E-02 2.10E-02 2.09E-02 2.72E-02 0.00E+00 2.13E-02 INFANT 4.48E-05 1.72E-02 1.72E-02 1.72E-02 1.72E-02 1.72E-02 0.00E+00 1.72E-02 E-1.24

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05 Unit..................: 2 Receptor..............: 0 Liquid Receptor

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 ADULT GILLI 4.30E-02 31-day 1.50E-01 2.87E+01 2.00E-01 2.15E+01 Qrtr->End ADULT GILLI 4.30E-02 Quarter 3.75E+00 1.15E+00 5.00E+00 8.61E-01 Year->End ADULT GILLI 4.30E-02 Annual 7.50E+00 5.74E-01 1.00E+01 4.30E-01 Critical Pathway........: 1 Fresh Water Fish - Sport (FFSP)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 4.25E+01 CR-51 2.35E-02 MN-54 3.93E-01 FE-55 6.67E-02 FE-59 4.53E-02 CO-58 9.62E-01 CO-60 2.95E+00 NI-63 2.67E-02 ZN-65 1.59E-01 ZR-95 6.32E-03 NB-95 5.11E+01 AG-110M 6.69E-03 TE-125M 1.65E+00 I-133 3.56E-06 E-1.25

Table 3.2-1 RETDAS v3.6.3 <BRA> VSSI LIQUID RELEASE AND DOSE

SUMMARY

REPORT

---

(PERIOD BASIS - BY UNIT) ------

Release ID............: 1 All Liquid Release Types Period Start Date.....: 01/01/2014 00:00 Period End Date.......: 01/01/2015 00:00 Period Duration (mins): 5.256E+05

MAXIMUM PERIOD DOSE TO LIMIT (Tot Body)) ================================

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

Period Group Organ (mrem) Period Limit of Limit Limit of Limit Strt->End CHILD TBODY 2.13E-02 31-day 4.50E-02 4.73E+01 6.00E-02 3.55E+01 Qrtr->End CHILD TBODY 2.13E-02 Quarter 1.13E+00 1.89E+00 1.50E+00 1.42E+00 Year->End CHILD TBODY 2.13E-02 Annual 2.25E+00 9.46E-01 3.00E+00 7.10E-01 Critical Pathway........: 0 Potable Water (PWtr)

Major Contributors......: 0.0 % or greater to total Nuclide Percentage H-3 9.82E+01 CR-51 2.10E-04 MN-54 5.35E-02 FE-55 7.89E-02 FE-59 1.21E-02 CO-58 2.44E-01 CO-60 7.94E-01 NI-63 1.77E-01 ZN-65 2.48E-01 ZR-95 4.46E-06 NB-95 1.01E-02 AG-110M 3.31E-05 TE-125M 1.56E-01 I-133 3.36E-06 E-1.26

Table 3-3.1 Braidwood Nuclear Station Unit 1 10 CFR 20 Compliance Assessment Period of Assessment: 1/1/14 through 12/31/14 Calculated: 04/14/15 10 CFR 20.1301(a)(1) Compliance Total Effective Dose Equivalent (TEDE) mrem/year 1.09E+00 10 CFR 20.1301(a)(1) limit mrem/year 100.00

% of limit 1.09 Compliance Summary 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Total TEDE (mrem) 2.48E-01 4.01E-01 1.91E-01 2.49E-01 1.09E+00 E-1.27

Table 3-3.1 (cont.)

Braidwood Nuclear Station Unit 2 10 CFR 20 Compliance Assessment Period of Assessment: 1/1/14 through 12/31/14 Calculated: 04/14/15 10 CFR 20.1301(a)(1) Compliance Total Effective Dose Equivalent (TEDE) mrem/year 1.19E+00 10 CFR 20.1301(a)(1) limit mrem/year 100.00

% of limit 1.19 Compliance Summary 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Total TEDE (mrem) 2.61E-01 3.82E-01 2.77E-01 2.67E-01 1.19E+00 E-1.28

Table 3.4-1 Doses Resulting from Airborne Releases The following are the maximum annual calculated cumulative offsite doses resulting from Braidwood Station airborne releases.

Unit 1:

Dose Maximum Value Sector Affected gamma air (1) 8.780 x10-6 mrad North beta air (2) 1.060 x10-5 mrad North whole body (3) 2.680 x10-1 mrem North skin (4) 1.210 x 10-5 mrem North organ (5) (child-bone) 1.240 x10+0 mrem North Unit 1 Compliance Status 10 CFR 50 Appendix I Yearly Objective  % of Appendix I gamma air 10.0 mrad 0.00E+00 beta air 20.0 mrad 0.00E+00 whole body 5.0 mrem 5.36E+00 skin 15.0 mrem 0.00E+00 organ 15.0 mrem 8.27E+00 Unit 2:

Dose Maximum Value Sector Affected gamma air (1) 2.900 x10-6 mrad North beta air (2) 6.470 x10-6 mrad North whole body (3) 2.710 x10-1 mrem North skin (4) 4.980 x10-6 mrem North organ (5) (child-bone) 1.160 x10+0 mrem North Unit 2 Compliance Status 10 CFR 50 Appendix I Yearly Objective  % of Appendix I gamma air 10.0 mrad 0.00E+00 beta air 20.0 mrad 0.00E+00 whole body 5.0 mrem 5.42E+00 skin 15.0 mrem 0.00E+00 organ 15.0 mrem 7.73E+00 (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-1.29

Intentionally left blank APPENDIX F METEOROLOGICAL DATA

Intentionally left blank Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 2 0 0 0 0 2 ESE 0 2 1 0 0 0 3 SE 0 1 5 2 0 0 8 SSE 0 2 2 2 0 0 6 S 0 1 3 2 0 0 6 SSW 0 2 7 0 0 0 9 SW 0 0 0 1 0 0 1 WSW 0 0 3 4 0 0 7 W 0 2 5 1 0 0 8 WNW 0 6 16 0 0 0 22 NW 0 3 14 1 0 0 18 NNW 0 0 9 1 0 0 10 Variable 0 0 0 0 0 0 0 Total 0 21 65 14 0 0 100 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-1

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 0 0 2 NNE 0 0 0 0 0 0 0 NE 0 0 0 2 0 0 2 ENE 0 1 0 0 0 0 1 E 0 0 0 0 0 0 0 ESE 0 1 0 0 0 0 1 SE 0 3 3 0 0 0 6 SSE 0 0 3 2 0 0 5 S 0 1 2 1 0 0 4 SSW 0 1 1 0 0 1 3 SW 0 1 1 0 0 0 2 WSW 0 0 1 1 3 0 5 W 0 2 9 1 0 0 12 WNW 0 5 9 2 0 0 16 NW 0 6 4 0 0 0 10 NNW 0 2 3 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 0 23 38 9 3 1 74 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-2

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 0 0 2 NNE 0 0 4 0 0 0 4 NE 0 0 0 0 0 0 0 ENE 0 2 0 0 0 0 2 E 0 2 0 0 0 0 2 ESE 0 1 0 0 0 0 1 SE 0 0 0 1 0 0 1 SSE 0 0 2 2 0 0 4 S 0 1 3 2 0 0 6 SSW 0 1 2 2 2 0 7 SW 0 3 8 5 0 0 16 WSW 0 3 9 0 1 0 13 W 0 2 11 1 0 0 14 WNW 0 9 8 1 0 0 18 NW 0 7 5 1 0 0 13 NNW 0 4 8 1 0 0 13 Variable 0 0 0 0 0 0 0 Total 0 35 62 16 3 0 116 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-3

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 14 34 15 0 0 63 NNE 1 7 21 3 0 0 32 NE 3 25 27 9 0 0 64 ENE 5 33 12 0 0 0 50 E 8 5 0 0 0 0 13 ESE 0 11 6 0 0 0 17 SE 0 13 14 2 0 0 29 SSE 1 39 24 17 0 0 81 S 0 15 28 42 14 0 99 SSW 0 5 10 17 10 0 42 SW 0 8 27 30 4 0 69 WSW 2 16 17 12 4 0 51 W 2 32 42 17 0 0 93 WNW 3 38 63 18 0 0 122 NW 6 36 18 6 0 0 66 NNW 2 25 39 6 0 0 72 Variable 0 0 0 0 0 0 0 Total 33 322 382 194 32 0 963 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 35 Hours of missing stability measurements in all stability classes: 3 F-4

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 3 1 0 0 0 8 NNE 1 8 4 1 0 0 14 NE 6 8 2 7 0 0 23 ENE 7 10 0 0 0 0 17 E 9 10 0 0 0 0 19 ESE 7 10 2 0 0 0 19 SE 3 26 5 1 0 0 35 SSE 1 25 20 5 0 0 51 S 1 10 14 18 6 0 49 SSW 1 6 14 17 7 0 45 SW 1 19 31 4 0 0 55 WSW 5 47 11 2 1 0 66 W 11 44 7 1 0 0 63 WNW 19 59 29 2 0 0 109 NW 14 24 5 0 0 0 43 NNW 6 15 8 0 0 0 29 Variable 0 0 0 0 0 0 0 Total 96 324 153 58 14 0 645 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 3 F-5

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 0 0 0 0 0 4 NNE 3 1 0 0 0 0 4 NE 6 1 0 0 0 0 7 ENE 9 0 0 0 0 0 9 E 8 0 0 0 0 0 8 ESE 4 1 1 0 0 0 6 SE 4 2 0 0 0 0 6 SSE 3 2 0 0 0 0 5 S 1 2 0 0 0 0 3 SSW 0 1 1 0 0 0 2 SW 2 6 2 0 0 0 10 WSW 2 12 0 0 0 0 14 W 17 14 0 0 0 0 31 WNW 23 8 0 0 0 0 31 NW 9 0 0 0 0 0 9 NNW 5 1 0 0 0 0 6 Variable 1 0 0 0 0 0 1 Total 101 51 4 0 0 0 156 Hours of calm in this stability class: 8 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-6

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 0 0 0 0 0 2 NNE 3 0 0 0 0 0 3 NE 4 0 0 0 0 0 4 ENE 6 0 0 0 0 0 6 E 2 0 0 0 0 0 2 ESE 2 0 0 0 0 0 2 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 1 0 0 0 0 0 1 SW 3 0 0 0 0 0 3 WSW 0 2 0 0 0 0 2 W 5 0 0 0 0 0 5 WNW 13 0 0 0 0 0 13 NW 1 0 0 0 0 0 1 NNW 3 0 0 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 45 2 0 0 0 0 47 Hours of calm in this stability class: 7 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-7

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 1 0 0 0 1 ESE 0 2 1 1 0 0 4 SE 0 1 2 1 1 0 5 SSE 0 1 1 3 2 0 7 S 0 1 0 0 3 1 5 SSW 0 0 9 3 0 0 12 SW 0 0 0 1 0 0 1 WSW 0 0 1 3 2 0 6 W 0 1 1 1 1 0 4 WNW 0 1 5 10 9 0 25 NW 0 0 9 7 4 1 21 NNW 0 0 3 6 0 0 9 Variable 0 0 0 0 0 0 0 Total 0 7 33 36 22 2 100 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-8

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 0 0 2 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 2 0 2 ENE 0 0 0 0 0 0 0 E 0 1 0 0 0 0 1 ESE 0 0 1 0 0 0 1 SE 0 1 3 2 0 0 6 SSE 0 0 0 2 0 0 2 S 0 0 1 1 3 0 5 SSW 0 1 1 2 0 1 5 SW 0 0 1 1 0 0 2 WSW 0 0 0 1 1 3 5 W 0 0 4 4 0 0 8 WNW 0 3 6 4 4 1 18 NW 0 1 9 0 2 0 12 NNW 0 0 2 3 0 0 5 Variable 0 0 0 0 0 0 0 Total 0 7 30 20 12 5 74 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-9

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 1 0 0 2 NNE 0 0 1 3 0 0 4 NE 0 0 0 0 0 0 0 ENE 0 1 1 0 0 0 2 E 0 0 2 0 0 0 2 ESE 0 0 1 0 0 0 1 SE 0 0 0 0 1 0 1 SSE 0 0 0 1 1 1 3 S 0 0 1 5 1 0 7 SSW 0 2 0 2 1 2 7 SW 0 1 4 4 5 0 14 WSW 0 1 6 4 0 1 12 W 0 3 6 6 0 0 15 WNW 0 2 10 1 5 0 18 NW 0 1 9 4 1 1 16 NNW 0 4 2 5 1 0 12 Variable 0 0 0 0 0 0 0 Total 0 15 44 36 16 5 116 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-10

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 24 27 11 0 67 NNE 0 4 14 22 3 0 43 NE 0 8 17 25 10 0 60 ENE 2 14 21 13 0 0 50 E 2 8 6 2 0 0 18 ESE 1 0 9 5 3 0 18 SE 0 2 6 17 3 1 29 SSE 0 7 23 11 12 4 57 S 0 6 25 23 36 26 116 SSW 0 1 7 14 12 16 50 SW 0 2 18 17 19 8 64 WSW 3 5 21 8 10 9 56 W 1 14 19 21 11 6 72 WNW 0 8 23 38 46 16 131 NW 1 15 28 30 10 12 96 NNW 1 5 21 36 6 2 71 Variable 0 0 0 0 0 0 0 Total 11 104 282 309 192 100 998 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-11

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 4 10 2 0 0 17 NNE 0 4 6 3 2 0 15 NE 1 2 8 3 3 3 20 ENE 3 5 10 0 0 0 18 E 1 3 7 2 0 0 13 ESE 1 3 7 8 2 0 21 SE 0 4 11 15 0 0 30 SSE 2 3 16 15 3 2 41 S 0 0 11 26 13 9 59 SSW 1 2 5 14 16 20 58 SW 5 4 11 21 9 0 50 WSW 1 10 24 23 1 2 61 W 0 7 27 15 4 0 53 WNW 0 4 32 58 11 1 106 NW 2 4 25 19 3 1 54 NNW 1 7 19 8 0 0 35 Variable 0 0 0 0 0 0 0 Total 19 66 229 232 67 38 651 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-12

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 5 0 0 0 6 NNE 0 3 5 0 0 0 8 NE 1 3 5 0 0 0 9 ENE 1 4 5 0 0 0 10 E 0 2 2 0 0 0 4 ESE 0 1 1 0 0 0 2 SE 0 2 2 4 0 0 8 SSE 0 5 4 0 0 0 9 S 2 0 5 0 0 0 7 SSW 0 0 0 1 0 0 1 SW 3 1 2 3 0 0 9 WSW 0 4 3 7 0 0 14 W 1 1 6 7 0 0 15 WNW 2 2 11 9 0 0 24 NW 0 8 20 2 0 0 30 NNW 0 1 7 0 0 0 8 Variable 0 0 0 0 0 0 0 Total 10 38 83 33 0 0 164 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-13

Braidwood Generating Station Period of Record: January - March 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 1 0 0 0 3 NNE 1 3 1 0 0 0 5 NE 1 1 1 0 0 0 3 ENE 1 1 2 0 0 0 4 E 0 0 0 0 0 0 0 ESE 0 2 0 0 0 0 2 SE 1 1 0 0 0 0 2 SSE 1 3 0 0 0 0 4 S 0 3 0 0 0 0 3 SSW 0 2 0 0 0 0 2 SW 2 0 0 0 0 0 2 WSW 0 0 0 1 0 0 1 W 0 0 2 1 0 0 3 WNW 2 1 2 0 0 0 5 NW 0 0 1 0 0 0 1 NNW 0 1 9 2 0 0 12 Variable 0 0 0 0 0 0 0 Total 9 20 19 4 0 0 52 Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-14

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 3 0 0 0 3 NNE 0 1 4 0 0 0 5 NE 0 11 2 0 0 0 13 ENE 2 19 6 0 0 0 27 E 2 11 10 0 0 0 23 ESE 0 6 1 1 0 0 8 SE 1 10 5 3 0 0 19 SSE 0 13 6 8 0 0 27 S 0 8 16 4 0 0 28 SSW 0 3 10 1 0 0 14 SW 0 0 12 2 0 0 14 WSW 0 0 5 7 2 0 14 W 0 6 7 4 0 0 17 WNW 0 5 9 0 0 0 14 NW 0 6 6 0 0 0 12 NNW 0 2 16 0 0 0 18 Variable 0 0 0 0 0 0 0 Total 5 101 118 30 2 0 256 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-15

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 0 0 0 0 1 NNE 0 2 0 0 0 0 2 NE 0 5 0 0 0 0 5 ENE 0 4 2 0 0 0 6 E 1 2 1 0 0 0 4 ESE 0 2 0 0 0 0 2 SE 0 4 2 1 0 0 7 SSE 1 6 4 0 0 0 11 S 0 6 7 1 0 0 14 SSW 0 2 7 2 0 0 11 SW 0 4 6 1 0 0 11 WSW 0 2 4 2 0 0 8 W 1 7 1 3 0 0 12 WNW 0 7 0 0 0 0 7 NW 0 5 2 0 0 0 7 NNW 2 2 5 1 0 0 10 Variable 0 0 0 0 0 0 0 Total 5 61 41 11 0 0 118 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-16

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 1 0 0 0 6 NNE 0 2 4 0 0 0 6 NE 1 4 6 0 0 0 11 ENE 1 7 5 0 0 0 13 E 0 2 2 0 0 0 4 ESE 0 0 1 0 0 0 1 SE 0 6 1 2 0 0 9 SSE 0 4 8 1 0 0 13 S 0 7 3 1 0 0 11 SSW 0 4 2 5 3 0 14 SW 0 3 5 0 0 0 8 WSW 0 3 4 0 1 0 8 W 0 0 2 0 0 0 2 WNW 0 5 2 0 0 0 7 NW 0 6 1 0 0 0 7 NNW 0 1 2 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 2 59 49 9 4 0 123 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-17

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 12 12 0 0 0 26 NNE 5 17 18 0 0 0 40 NE 7 48 35 0 0 0 90 ENE 10 49 24 0 0 0 83 E 8 13 18 0 0 0 39 ESE 2 9 3 0 0 0 14 SE 1 17 4 1 0 0 23 SSE 0 17 12 2 0 0 31 S 1 11 34 8 0 0 54 SSW 0 8 22 21 5 2 58 SW 0 12 38 18 1 0 69 WSW 3 14 31 8 3 0 59 W 5 16 20 12 0 0 53 WNW 4 18 6 0 0 0 28 NW 6 13 4 0 0 0 23 NNW 2 15 27 2 0 0 46 Variable 0 0 0 0 0 0 0 Total 56 289 308 72 9 2 736 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-18

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 7 7 3 0 0 0 17 NNE 9 13 3 1 0 0 26 NE 20 29 5 1 0 0 55 ENE 30 32 6 0 0 0 68 E 24 28 8 0 0 0 60 ESE 7 34 10 0 0 0 51 SE 3 48 26 0 0 0 77 SSE 3 53 18 2 0 0 76 S 4 30 53 22 0 0 109 SSW 2 6 26 15 5 0 54 SW 2 11 17 2 0 0 32 WSW 9 23 5 1 0 0 38 W 8 16 1 2 0 0 27 WNW 12 14 1 0 0 0 27 NW 10 17 2 0 0 0 29 NNW 3 20 6 0 0 0 29 Variable 0 0 0 0 0 0 0 Total 153 381 190 46 5 0 775 Hours of calm in this stability class: 8 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-19

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 1 0 0 0 0 2 NNE 3 1 0 0 0 0 4 NE 1 0 0 0 0 0 1 ENE 11 0 0 0 0 0 11 E 11 0 0 0 0 0 11 ESE 10 1 0 0 0 0 11 SE 1 3 0 0 0 0 4 SSE 2 6 0 0 0 0 8 S 1 3 0 0 0 0 4 SSW 1 9 0 0 0 0 10 SW 1 0 0 0 0 0 1 WSW 3 3 0 0 0 0 6 W 8 5 0 0 0 0 13 WNW 9 1 0 0 0 0 10 NW 7 0 0 0 0 0 7 NNW 1 2 0 0 0 0 3 Variable 1 0 0 0 0 0 1 Total 72 35 0 0 0 0 107 Hours of calm in this stability class: 12 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-20

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 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 0 0 0 0 0 1 ENE 6 0 0 0 0 0 6 E 4 0 0 0 0 0 4 ESE 1 1 0 0 0 0 2 SE 3 0 0 0 0 0 3 SSE 1 0 0 0 0 0 1 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 5 1 0 0 0 0 6 WNW 2 0 0 0 0 0 2 NW 2 0 0 0 0 0 2 NNW 2 0 0 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 28 2 0 0 0 0 30 Hours of calm in this stability class: 19 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-21

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 0 1 0 0 2 NNE 0 0 1 5 0 0 6 NE 0 1 6 1 0 0 8 ENE 0 9 10 6 0 0 25 E 1 10 6 6 3 0 26 ESE 0 6 2 0 2 1 11 SE 0 7 5 2 0 0 14 SSE 0 3 9 2 13 0 27 S 0 6 8 10 2 1 27 SSW 0 2 8 10 0 1 21 SW 0 0 5 2 1 0 8 WSW 0 0 4 5 3 0 12 W 0 0 9 2 5 6 22 WNW 0 1 6 4 3 0 14 NW 0 2 5 10 1 0 18 NNW 0 0 3 12 0 0 15 Variable 0 0 0 0 0 0 0 Total 1 48 87 78 33 9 256 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-22

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 0 0 0 0 3 NNE 0 3 0 0 0 0 3 NE 0 1 2 0 0 0 3 ENE 0 3 3 1 0 0 7 E 0 2 0 2 0 0 4 ESE 0 0 3 0 0 0 3 SE 0 2 4 0 2 0 8 SSE 0 1 1 2 0 0 4 S 1 5 5 3 0 1 15 SSW 0 1 6 5 1 0 13 SW 0 3 2 5 1 0 11 WSW 0 0 5 2 1 0 8 W 0 2 4 2 2 0 10 WNW 0 4 6 0 1 0 11 NW 0 3 2 2 0 0 7 NNW 0 0 7 1 0 0 8 Variable 0 0 0 0 0 0 0 Total 2 32 50 25 8 1 118 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-23

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 1 0 0 3 NNE 0 1 2 1 0 0 4 NE 0 1 3 4 0 0 8 ENE 0 5 4 4 0 0 13 E 0 4 3 1 0 1 9 ESE 0 1 0 0 2 0 3 SE 0 0 4 1 2 0 7 SSE 0 2 5 3 1 0 11 S 0 2 5 1 3 0 11 SSW 0 2 5 1 3 4 15 SW 0 1 3 3 1 0 8 WSW 0 2 5 2 0 0 9 W 0 0 2 0 1 1 4 WNW 0 2 2 1 0 0 5 NW 0 2 6 1 0 0 9 NNW 0 1 2 1 0 0 4 Variable 0 0 0 0 0 0 0 Total 0 28 51 25 13 6 123 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-24

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 12 6 9 0 0 27 NNE 2 4 9 8 0 0 23 NE 2 4 31 37 2 0 76 ENE 4 21 36 27 1 0 89 E 0 15 19 10 4 0 48 ESE 0 3 4 2 10 3 22 SE 0 3 9 3 3 0 18 SSE 0 4 11 12 5 0 32 S 1 1 13 22 8 0 45 SSW 0 0 8 18 19 11 56 SW 0 5 20 28 18 3 74 WSW 1 5 15 24 8 0 53 W 0 9 9 18 3 6 45 WNW 2 12 12 19 8 4 57 NW 2 8 11 5 0 0 26 NNW 0 10 10 19 6 0 45 Variable 0 0 0 0 0 0 0 Total 14 116 223 261 95 27 736 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-25

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 7 3 0 0 14 NNE 1 6 10 5 3 0 25 NE 0 6 21 7 0 0 34 ENE 1 23 37 16 2 0 79 E 1 12 33 9 9 1 65 ESE 0 1 5 18 7 1 32 SE 0 3 26 30 7 0 66 SSE 1 1 22 43 8 0 75 S 1 4 27 47 20 4 103 SSW 1 0 14 35 25 12 87 SW 0 3 9 16 4 1 33 WSW 3 8 18 10 0 0 39 W 1 5 18 5 4 0 33 WNW 0 3 14 9 0 0 26 NW 0 9 23 9 0 0 41 NNW 0 3 22 6 0 0 31 Variable 0 0 0 0 0 0 0 Total 10 91 306 268 89 19 783 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-26

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 1 0 0 2 NNE 0 1 3 0 0 0 4 NE 1 3 0 0 0 0 4 ENE 0 1 4 0 0 0 5 E 3 3 6 1 0 0 13 ESE 0 1 5 6 0 0 12 SE 1 1 4 1 0 0 7 SSE 0 0 3 2 0 0 5 S 0 0 3 2 0 0 5 SSW 0 1 5 6 0 0 12 SW 0 3 1 2 0 0 6 WSW 0 0 1 0 0 0 1 W 1 2 5 1 0 0 9 WNW 0 5 8 3 0 0 16 NW 0 2 7 1 0 0 10 NNW 0 2 5 1 0 0 8 Variable 0 0 0 0 0 0 0 Total 6 25 61 27 0 0 119 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-27

Braidwood Generating Station Period of Record: April - June 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 1 0 0 0 4 NNE 0 1 1 0 0 0 2 NE 0 0 1 0 0 0 1 ENE 1 1 0 0 0 0 2 E 2 0 0 1 0 0 3 ESE 0 0 2 3 0 0 5 SE 0 2 6 0 0 0 8 SSE 1 3 1 0 0 0 5 S 3 0 0 0 0 0 3 SSW 0 1 0 0 0 0 1 SW 2 0 0 0 0 0 2 WSW 0 1 0 0 0 0 1 W 0 0 0 0 0 0 0 WNW 1 1 1 0 0 0 3 NW 0 1 3 0 0 0 4 NNW 1 1 3 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 12 14 19 4 0 0 49 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-28

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 6 0 0 0 9 NNE 1 4 4 0 0 0 9 NE 1 21 3 0 0 0 25 ENE 1 24 0 0 0 0 25 E 1 19 0 0 0 0 20 ESE 5 9 2 0 0 0 16 SE 6 15 0 0 0 0 21 SSE 4 21 4 0 0 0 29 S 3 25 7 0 0 0 35 SSW 2 17 16 8 0 0 43 SW 0 11 13 6 0 0 30 WSW 2 16 13 2 0 0 33 W 4 20 13 0 0 0 37 WNW 0 26 14 0 0 0 40 NW 2 23 6 0 0 0 31 NNW 4 5 1 0 0 0 10 Variable 0 0 0 0 0 0 0 Total 36 259 102 16 0 0 413 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 4 Hours of missing stability measurements in all stability classes: 2 F-29

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 2 0 0 0 7 NNE 1 4 1 0 0 0 6 NE 1 3 1 0 0 0 5 ENE 5 2 0 0 0 0 7 E 3 3 0 0 0 0 6 ESE 1 2 0 0 0 0 3 SE 5 0 0 0 0 0 5 SSE 0 3 1 0 0 0 4 S 3 6 0 0 0 0 9 SSW 0 4 7 1 0 0 12 SW 1 7 5 4 0 0 17 WSW 1 4 2 0 0 0 7 W 1 4 3 0 0 0 8 WNW 3 9 2 0 0 0 14 NW 3 1 2 0 0 0 6 NNW 0 5 4 0 0 0 9 Variable 0 0 0 0 0 0 0 Total 28 62 30 5 0 0 125 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: 2 F-30

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 3 0 0 0 0 5 NNE 0 8 1 0 0 0 9 NE 0 4 1 0 0 0 5 ENE 4 3 0 0 0 0 7 E 1 0 0 0 0 0 1 ESE 1 1 0 0 0 0 2 SE 2 1 0 0 0 0 3 SSE 2 4 0 0 0 0 6 S 0 4 1 0 0 0 5 SSW 0 4 4 1 1 0 10 SW 0 1 5 1 0 0 7 WSW 0 4 3 0 0 0 7 W 1 4 2 0 0 0 7 WNW 2 7 1 0 0 0 10 NW 3 4 3 0 0 0 10 NNW 3 7 5 0 0 0 15 Variable 0 0 0 0 0 0 0 Total 21 59 26 2 1 0 109 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 2 F-31

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 13 27 6 0 0 0 46 NNE 6 26 9 0 0 0 41 NE 13 28 6 0 0 0 47 ENE 16 11 0 0 0 0 27 E 9 6 0 0 0 0 15 ESE 10 4 0 0 0 0 14 SE 5 10 2 0 0 0 17 SSE 3 22 5 0 0 0 30 S 2 23 24 3 0 0 52 SSW 1 6 30 8 0 0 45 SW 2 20 25 9 0 0 56 WSW 5 19 2 1 0 0 27 W 8 19 6 1 0 0 34 WNW 11 22 0 0 0 0 33 NW 5 17 9 0 0 0 31 NNW 9 26 15 1 0 0 51 Variable 0 0 0 0 0 0 0 Total 118 286 139 23 0 0 566 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 10 Hours of missing stability measurements in all stability classes: 2 F-32

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 14 1 0 0 0 18 NNE 9 6 3 0 0 0 18 NE 10 9 0 0 0 0 19 ENE 44 4 0 0 0 0 48 E 40 3 0 0 0 0 43 ESE 21 8 0 0 0 0 29 SE 14 34 0 0 0 0 48 SSE 27 52 3 0 0 0 82 S 7 46 21 0 0 0 74 SSW 4 13 7 1 0 0 25 SW 1 14 10 0 0 0 25 WSW 8 12 1 0 0 0 21 W 16 12 1 0 0 0 29 WNW 27 12 1 0 0 0 40 NW 11 0 0 0 0 0 11 NNW 9 7 1 0 0 0 17 Variable 0 0 0 0 0 0 0 Total 251 246 49 1 0 0 547 Hours of calm in this stability class: 8 Hours of missing wind measurements in this stability class: 6 Hours of missing stability measurements in all stability classes: 2 F-33

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 6 0 0 0 0 0 6 NNE 1 1 0 0 0 0 2 NE 5 0 0 0 0 0 5 ENE 12 0 0 0 0 0 12 E 35 1 0 0 0 0 36 ESE 35 5 0 0 0 0 40 SE 14 3 0 0 0 0 17 SSE 8 2 0 0 0 0 10 S 4 0 0 0 0 0 4 SSW 6 2 0 0 0 0 8 SW 9 2 0 0 0 0 11 WSW 20 5 0 0 0 0 25 W 26 2 0 0 0 0 28 WNW 12 0 0 0 0 0 12 NW 1 1 0 0 0 0 2 NNW 5 0 0 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 199 24 0 0 0 0 223 Hours of calm in this stability class: 24 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 2 F-34

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 0 0 0 0 0 3 NNE 3 0 0 0 0 0 3 NE 11 0 0 0 0 0 11 ENE 13 0 0 0 0 0 13 E 17 0 0 0 0 0 17 ESE 6 0 0 0 0 0 6 SE 3 0 0 0 0 0 3 SSE 0 0 0 0 0 0 0 S 1 0 0 0 0 0 1 SSW 0 0 0 0 0 0 0 SW 2 0 0 0 0 0 2 WSW 8 0 0 0 0 0 8 W 13 0 0 0 0 0 13 WNW 4 0 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 0 0 0 Total 86 0 0 0 0 0 86 Hours of calm in this stability class: 76 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-35

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 2 0 0 6 NNE 1 3 0 1 0 0 5 NE 1 10 11 4 1 0 27 ENE 0 13 12 0 0 0 25 E 1 10 11 2 0 0 24 ESE 3 8 3 5 0 0 19 SE 1 11 6 1 0 0 19 SSE 2 13 7 2 0 0 24 S 2 10 14 4 1 0 31 SSW 1 14 15 10 2 0 42 SW 0 12 9 11 3 0 35 WSW 2 5 10 8 1 0 26 W 4 16 15 6 0 0 41 WNW 0 12 19 19 3 0 53 NW 1 7 14 8 0 0 30 NNW 1 4 3 1 0 0 9 Variable 0 0 0 0 0 0 0 Total 20 149 152 84 11 0 416 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 2 F-36

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 5 0 0 0 7 NNE 0 2 2 0 0 0 4 NE 0 0 3 1 1 0 5 ENE 2 4 2 0 0 0 8 E 1 3 2 0 0 0 6 ESE 2 1 1 0 0 0 4 SE 1 2 0 0 0 0 3 SSE 0 3 2 0 0 0 5 S 1 2 4 1 0 0 8 SSW 2 3 2 4 0 0 11 SW 0 5 5 7 2 0 19 WSW 0 4 2 0 0 0 6 W 1 6 1 1 0 0 9 WNW 1 7 3 4 1 0 16 NW 0 1 0 2 1 0 4 NNW 0 4 8 1 0 0 13 Variable 0 0 0 0 0 0 0 Total 11 49 42 21 5 0 128 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-37

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 3 0 0 0 5 NNE 1 5 0 0 0 0 6 NE 1 3 2 2 0 0 8 ENE 0 5 1 0 0 0 6 E 0 2 1 0 0 0 3 ESE 0 2 0 0 0 0 2 SE 1 2 0 0 0 0 3 SSE 1 1 3 0 0 0 5 S 1 2 3 1 0 0 7 SSW 0 1 2 1 1 1 6 SW 0 1 3 3 0 0 7 WSW 0 2 2 3 0 0 7 W 0 4 1 3 1 0 9 WNW 2 5 4 1 0 0 12 NW 3 5 2 2 1 0 13 NNW 0 5 5 2 0 0 12 Variable 0 0 0 0 0 0 0 Total 10 47 32 18 3 1 111 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-38

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 16 13 3 0 0 36 NNE 3 14 15 3 0 0 35 NE 6 8 24 13 0 0 51 ENE 5 14 15 0 0 0 34 E 0 8 9 0 0 0 17 ESE 4 2 5 0 0 0 11 SE 3 6 6 0 1 0 16 SSE 2 5 11 6 1 0 25 S 0 6 23 20 3 0 52 SSW 0 3 4 23 13 0 43 SW 1 8 14 29 6 1 59 WSW 2 9 21 4 1 0 37 W 1 10 9 6 2 1 29 WNW 2 5 20 6 0 0 33 NW 3 6 16 16 3 0 44 NNW 5 10 27 12 0 1 55 Variable 0 0 0 0 0 0 0 Total 41 130 232 141 30 3 577 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-39

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 3 14 1 0 0 20 NNE 1 6 6 2 0 0 15 NE 1 6 9 3 0 0 19 ENE 1 14 22 1 0 0 38 E 1 15 39 0 0 0 55 ESE 0 3 12 0 0 0 15 SE 0 9 21 5 0 0 35 SSE 0 10 35 11 0 0 56 S 0 10 53 34 0 0 97 SSW 1 13 22 22 2 0 60 SW 0 1 19 9 1 0 30 WSW 0 6 12 2 0 0 20 W 0 3 13 4 0 0 20 WNW 0 5 23 7 1 0 36 NW 2 8 16 2 0 0 28 NNW 0 5 11 1 0 0 17 Variable 0 0 0 0 0 0 0 Total 9 117 327 104 4 0 561 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-40

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 6 0 0 0 9 NNE 1 2 4 0 0 0 7 NE 2 1 0 0 0 0 3 ENE 2 5 2 0 0 0 9 E 1 3 9 1 0 0 14 ESE 3 3 16 11 0 0 33 SE 0 8 24 5 0 0 37 SSE 0 9 9 0 0 0 18 S 2 7 6 0 0 0 15 SSW 0 4 4 0 0 0 8 SW 0 8 3 0 0 0 11 WSW 1 6 8 1 0 0 16 W 2 5 14 0 0 0 21 WNW 0 6 18 0 0 0 24 NW 1 9 8 0 0 0 18 NNW 1 3 3 0 0 0 7 Variable 0 0 0 0 0 0 0 Total 17 81 134 18 0 0 250 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-41

Braidwood Generating Station Period of Record: July - September 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 2 0 0 0 3 NNE 1 1 0 0 0 0 2 NE 0 2 1 0 0 0 3 ENE 0 3 1 0 0 0 4 E 0 2 3 1 0 0 6 ESE 0 3 7 5 0 0 15 SE 2 12 5 0 0 0 19 SSE 4 12 0 0 0 0 16 S 2 9 0 0 0 0 11 SSW 9 8 1 0 0 0 18 SW 6 5 0 0 0 0 11 WSW 4 6 5 0 0 0 15 W 1 2 5 0 0 0 8 WNW 2 2 4 0 0 0 8 NW 0 9 4 0 0 0 13 NNW 1 3 5 0 0 0 9 Variable 0 0 0 0 0 0 0 Total 33 79 43 6 0 0 161 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-42

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 0 0 0 1 NNE 0 0 1 0 0 0 1 NE 0 2 2 0 0 0 4 ENE 0 3 0 0 0 0 3 E 0 1 0 0 0 0 1 ESE 0 1 0 0 0 0 1 SE 0 5 0 0 0 0 5 SSE 0 0 1 0 0 0 1 S 0 0 3 0 0 0 3 SSW 0 0 1 0 0 0 1 SW 0 0 1 0 0 0 1 WSW 0 0 7 0 0 0 7 W 0 0 8 14 0 0 22 WNW 0 5 8 2 0 0 15 NW 0 6 5 0 0 0 11 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 23 39 16 0 0 78 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-43

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 1 0 3 NNE 0 1 1 0 0 0 2 NE 1 1 0 0 0 0 2 ENE 1 0 0 0 0 0 1 E 1 0 0 0 0 0 1 ESE 0 1 0 0 0 0 1 SE 0 3 0 0 0 0 3 SSE 0 0 2 1 0 0 3 S 0 0 2 1 0 0 3 SSW 0 1 2 2 0 0 5 SW 0 2 6 2 0 0 10 WSW 0 0 2 1 0 0 3 W 0 3 3 1 0 0 7 WNW 0 4 2 0 0 0 6 NW 0 0 1 0 0 0 1 NNW 0 0 2 0 2 0 4 Variable 0 0 0 0 0 0 0 Total 3 16 25 8 3 0 55 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-44

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 0 0 0 4 NNE 0 0 1 0 0 0 1 NE 0 3 0 0 0 0 3 ENE 0 2 0 0 0 0 2 E 1 1 0 0 0 0 2 ESE 0 1 1 0 0 0 2 SE 1 0 0 0 0 0 1 SSE 0 0 3 1 0 0 4 S 0 2 0 0 0 0 2 SSW 0 6 4 4 0 0 14 SW 0 1 3 5 0 0 9 WSW 0 2 3 0 0 0 5 W 0 8 9 2 0 0 19 WNW 0 5 5 2 0 0 12 NW 0 2 5 0 0 0 7 NNW 0 1 1 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 2 35 38 14 0 0 89 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-45

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 21 20 10 2 0 57 NNE 2 22 9 0 0 0 33 NE 6 20 1 0 0 0 27 ENE 4 4 0 0 0 0 8 E 13 11 0 0 0 0 24 ESE 3 31 4 0 0 0 38 SE 1 16 22 0 0 0 39 SSE 1 42 30 0 0 0 73 S 1 27 76 6 0 0 110 SSW 0 13 27 36 5 0 81 SW 3 30 58 18 0 0 109 WSW 3 26 16 5 2 0 52 W 6 32 60 32 2 0 132 WNW 15 87 77 9 0 0 188 NW 12 43 22 1 0 0 78 NNW 4 52 36 18 0 0 110 Variable 0 0 0 0 0 0 0 Total 78 477 458 135 11 0 1159 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-46

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 8 6 1 0 0 0 15 NNE 5 16 0 0 0 0 21 NE 6 1 0 0 0 0 7 ENE 13 0 0 0 0 0 13 E 19 1 0 0 0 0 20 ESE 10 10 3 0 0 0 23 SE 2 19 12 0 0 0 33 SSE 4 22 25 0 0 0 51 S 2 38 68 5 0 0 113 SSW 4 12 36 18 1 0 71 SW 4 34 16 0 0 0 54 WSW 4 44 8 0 0 0 56 W 21 33 10 0 0 0 64 WNW 22 35 1 0 0 0 58 NW 8 4 0 0 0 0 12 NNW 13 4 1 0 0 0 18 Variable 0 0 0 0 0 0 0 Total 145 279 181 23 1 0 629 Hours of calm in this stability class: 5 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-47

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 7 0 0 0 0 0 7 NNE 4 1 0 0 0 0 5 NE 3 0 0 0 0 0 3 ENE 3 0 0 0 0 0 3 E 17 0 0 0 0 0 17 ESE 12 3 0 0 0 0 15 SE 0 0 0 0 0 0 0 SSE 2 0 0 0 0 0 2 S 1 0 0 0 0 0 1 SSW 1 4 1 0 0 0 6 SW 0 4 0 0 0 0 4 WSW 4 17 0 0 0 0 21 W 25 8 0 0 0 0 33 WNW 8 0 0 0 0 0 8 NW 6 1 0 0 0 0 7 NNW 3 0 0 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 96 38 1 0 0 0 135 Hours of calm in this stability class: 9 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-48

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 0 0 0 0 0 2 NNE 7 0 0 0 0 0 7 NE 0 0 0 0 0 0 0 ENE 3 0 0 0 0 0 3 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 1 0 0 0 0 0 1 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 3 0 0 0 0 0 3 W 3 0 0 0 0 0 3 WNW 4 0 0 0 0 0 4 NW 4 0 0 0 0 0 4 NNW 2 0 0 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 29 0 0 0 0 0 29 Hours of calm in this stability class: 15 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-49

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Extremely Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 2 0 0 2 NE 0 0 1 1 0 0 2 ENE 0 4 1 0 0 0 5 E 0 1 0 0 0 0 1 ESE 0 0 0 0 0 0 0 SE 0 0 6 0 0 0 6 SSE 0 0 0 1 0 0 1 S 0 0 0 2 0 0 2 SSW 0 0 1 1 0 0 2 SW 0 0 0 1 0 0 1 WSW 0 0 0 4 0 0 4 W 0 0 0 8 13 0 21 WNW 0 0 4 6 7 2 19 NW 0 0 7 4 0 0 11 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 5 21 30 20 2 78 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-50

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 0 0 1 2 NNE 0 0 2 1 0 0 3 NE 0 1 0 0 0 0 1 ENE 0 0 0 0 0 0 0 E 1 0 0 0 0 0 1 ESE 0 1 1 0 0 0 2 SE 0 0 2 1 0 0 3 SSE 0 0 0 0 1 0 1 S 0 1 0 2 3 0 6 SSW 0 0 1 1 1 1 4 SW 0 0 2 4 2 0 8 WSW 0 0 2 3 0 0 5 W 0 1 3 1 2 0 7 WNW 0 1 2 1 3 0 7 NW 0 0 0 1 0 0 1 NNW 0 0 2 0 0 2 4 Variable 0 0 0 0 0 0 0 Total 1 5 18 15 12 4 55 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-51

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Slightly Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 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 1 0 0 1 NE 0 1 2 0 0 0 3 ENE 0 2 0 0 0 0 2 E 0 0 0 0 0 0 0 ESE 1 0 1 1 0 0 3 SE 0 1 0 0 0 0 1 SSE 0 1 0 3 0 0 4 S 0 2 1 0 0 1 4 SSW 0 0 5 0 3 1 9 SW 0 4 3 4 2 0 13 WSW 0 1 0 1 0 0 2 W 0 5 3 5 1 0 14 WNW 0 5 1 7 5 2 20 NW 0 0 0 6 2 0 8 NNW 0 1 0 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 1 23 19 29 13 4 89 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-52

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 4 19 13 7 5 50 NNE 1 5 20 4 0 0 30 NE 1 4 19 2 0 0 26 ENE 0 9 3 0 0 0 12 E 3 12 3 0 0 0 18 ESE 0 9 19 15 0 0 43 SE 0 7 9 22 2 0 40 SSE 0 8 21 20 6 0 55 S 0 9 34 70 5 1 119 SSW 1 3 9 30 36 10 89 SW 0 8 41 31 16 2 98 WSW 4 7 33 10 1 2 57 W 3 16 18 32 33 9 111 WNW 0 19 42 87 38 7 193 NW 4 15 33 43 9 1 105 NNW 3 9 49 34 12 6 113 Variable 0 0 0 0 0 0 0 Total 22 144 372 413 165 43 1159 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-53

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Slightly Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 3 8 1 0 0 15 NNE 1 5 16 0 0 0 22 NE 0 3 5 1 0 0 9 ENE 0 5 3 0 0 0 8 E 0 7 13 0 0 0 20 ESE 0 5 10 5 0 0 20 SE 1 2 7 29 1 0 40 SSE 1 2 10 12 8 0 33 S 1 6 21 49 14 0 91 SSW 0 2 23 44 33 1 103 SW 1 17 23 18 2 0 61 WSW 1 10 27 14 0 0 52 W 0 1 27 21 0 0 49 WNW 1 4 34 22 0 0 61 NW 3 14 14 8 0 0 39 NNW 3 2 5 1 0 0 11 Variable 0 0 0 0 0 0 0 Total 16 88 246 225 58 1 634 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-54

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Moderately Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 2 0 0 0 4 NNE 0 1 4 2 0 0 7 NE 0 2 4 2 0 0 8 ENE 1 3 1 0 0 0 5 E 0 3 2 0 0 0 5 ESE 0 1 5 14 0 0 20 SE 0 1 4 5 0 0 10 SSE 0 2 0 0 0 0 2 S 1 0 1 0 0 0 2 SSW 0 2 0 0 0 0 2 SW 0 1 2 1 0 0 4 WSW 1 2 6 6 0 0 15 W 0 4 6 14 0 0 24 WNW 1 2 10 4 0 0 17 NW 0 5 4 3 0 0 12 NNW 0 2 5 0 0 0 7 Variable 0 0 0 0 0 0 0 Total 4 33 56 51 0 0 144 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-55

Braidwood Generating Station Period of Record: October - December 2014 Stability Class - Extremely Stable - 199Ft-30Ft Delta-T (F)

Winds Measured at 203 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 2 0 0 0 5 NNE 1 1 3 1 0 0 6 NE 0 1 1 1 0 0 3 ENE 2 1 1 0 0 0 4 E 1 2 1 0 0 0 4 ESE 1 0 0 0 0 0 1 SE 2 1 0 0 0 0 3 SSE 0 0 0 0 0 0 0 S 0 2 0 0 0 0 2 SSW 0 4 0 0 0 0 4 SW 0 1 0 0 0 0 1 WSW 1 2 0 0 0 0 3 W 1 0 0 1 0 0 2 WNW 0 1 0 0 0 0 1 NW 1 0 1 1 0 0 3 NNW 0 0 2 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 10 19 11 4 0 0 44 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 F-56

APPENDIX G ERRATA DATA

Intentionally left blank 2011 G-1

Intentionally left blank G-2

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS G-3

Intentionally left blank G-4

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2011 Location Location Description Distance & Direction From Site A. Surface Water BD-10 Kankakee River Downstream (indicator) 5.4 miles NE BD-25 Kankakee River Upstream (control) 9.6 miles E BD-38 Main Drainage Ditch (indicator) 1.5 miles SW BD-40 Braidwood Station Cooling Lake (indicator) Onsite BD-55 North Pond Fatlan Site (Indicator) 0.6 miles NE BD-56 South Pond Fatlan Site (indictor) 0.6 miles NE B. Drinking (Potable) Water BD-22 Wilmington (indicator) 6.0 miles NE C. Ground/Well Water BD-13 Braidwood City Hall Well (indicator) 1.7 miles NNE BD-34 Gibson Well (indicator) 4.7 miles E BD-35 Joly Well (indicator) 4.7 miles E BD-36 Hutton Well (indicator) 4.7 miles E BD-37 Nurczyk Well (indicator) 4.7 miles E BD-50 Skole Well (indicator) 4.7 miles E BD-51 Fatlan Well (indicator) 0.6 miles NE BD-53 Phelps Well (indicator) 0.7 miles E BD-54 Cash Well (indicator) 0.9 miles NE D. Milk - bi-weekly / monthly BD-17 Halpins Dairy (indicator) 5.5 miles SSW BD-18 Biros Farm (control) 8.7 miles W E. Air Particulates / Air Iodine BD-02 Custer Park (indicator) 5.0 miles E BD-03 County Line Road (control) 6.2 miles ESE BD-04 Essex (indicator) 4.8 miles SSE BD-05 Gardner (indicator) 5.5 miles SW BD-06 Godley (indicator) 0.5 miles WSW BD-19 Nearsite NW (indicator) 0.3 miles NW BD-20 Nearsite N (indicator) 0.6 miles N BD-21 Nearsite NE (indicator) 0.5 miles NE F. Fish BD-25 Kankakee River, Upstream (control) 9.6 miles E BD-28 Kankakee River, Discharge (indicator) 5.4 miles E BD-41 Cooling Lake (indicator) 1.0 mile E G. Sediment BD-10 Kankakee River, Downstream (indicator) 5.4 miles NE BD-57 Circulating Water Blowdown Discharge (indicator) 5.4 miles E G-5

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2011 Location Location Description Distance & Direction From Site H. Food Products Quadrant 1 Clark Farm 3.8 miles ENE Quadrant 2 W.F. Soltwisch 4.5 miles SSE Quadrant 3 Terri Schultz 4.8 miles SSW Quadrant 4 Bruce Sinkular 1.9 miles NNW Control Gorman Farm 9.0 miles NE I. Environmental Dosimetry - TLD Site Boundary BD-101-3 and -4 0.5 miles N BD-102-1 and -2 1.1 miles NNE BD-103-1 and -2 1.0 mile NE BD-104-1 and -2 0.7 miles ENE BD-105-1 and -2 2.2 miles E BD-106-1 and -2 2.5 miles ESE BD-107-1 and -2 3.2 miles SE BD-108-1 and -2 3.2 miles SSE BD-109-1 and -2 3.8 miles S BD-110-1 and -2 2.8 miles SSW BD-111a-1 and -2 1.4 miles SW BD-112-1 and -2 0.7 miles WSW BD-113a-1 and -2 0.5 miles W BD-114-1 and -2 0.4 miles WNW BD-115-1 and -2 0.3 miles NW BD-116-1 0.4 miles NNW BD-116-2 0.5 miles NNW Intermediate Distance BD-201-1 and -2 4.2 miles N BD-202-1 and -2 4.8 miles NNE BD-203-1 and -2 4.9 miles NE BD-204-1 and -2 4.3 miles ENE BD-205-1 and -2 4.0 miles E BD-206-1 and -2 4.5 miles ESE BD-207-1 and -2 4.5 miles SE BD-208-1 and -2 4.5 miles SSE BD-209-1 and -2 4.8 miles S BD-210-1 and -2 5.3 miles SSW BD-211-1 and -2 4.8 miles SW BD-212-3 and -4 5.0 miles WSW BD-213-3 and -4 4.8 miles W BD-214-1 and -2 4.3 miles WNW BD-215-1 and -2 4.5 miles NW BD-216-1 and -2 4.0 miles NNW Other BD-02-1 and -2 Custer Park (indicator) 5.0 miles E BD-04-1 and -2 Essex (indicator) 4.8 miles SSE BD-05-1 and -2 Gardner (indicator) 5.5 miles SW BD-06-1 and -2 Godley (indicator) 0.5 miles WSW BD-19-1 and -2 Nearsite NW (indicator) 0.3 miles NW BD-20-1 and -2 Nearsite N (indicator) 0.6 miles N BD-21-1 and -2 Nearsite NE (indicator) 0.5 miles NE G-6

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2011 Location Location Description Distance & Direction From Site I. Environmental Dosimetry - TLD (contd)

Control BD-03-1 and -2 13000 W. Road 6.2 miles ESE ISFSI BD-104-3 and -4 0.7 miles ENE BD-105-3 and -4 0.7 miles ENE BD-110-3 and -4 2.8 miles SSW Distance in Miles from the Braidwood Station ISFSI Pad, 2011 Sector Residence Miles (N) W 0.7 (P) WNW 0.7 (Q) NW 0.7 (R) NNW 0.7 Distance in Miles from the Braidwood Station Reactor Buildings, 2011 Sector Residence Livestock Milk Farm Miles Miles Miles (A) N 0.5 2.6 -

(B) NNE 0.9 - -

(C) NE 0.7 0.9 -

(D) ENE 0.8 3.3 -

(E) E 1.5 2.3 -

(F) ESE 2.2 2.3 -

(G) SE 2.7 2.7 -

(H) SSE 4.5 - -

(J) S 4.2 4.8 -

(K) SSW 1.3 5.3 5.5 (L) SW 0.4 1.2 -

(M) WSW 0.5 - -

(N) W 0.4 1.6 -

(P) WNW 0.4 - -

(Q) NW 0.4 - -

(R) NNW 0.4 - -

G-7

Figure B-1 Inner Ring and Other TLD Locations of the Braidwood Station, 2011 G-8

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY G-9

Intentionally left blank G-10

Table C-IX.1 QUARTERLY DLR RESULTS FOR BRAIDWOOD STATION, 2011 RESULTS IN UNITS OF MROENTGEN/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-02-1 19.8 +/- 1.9 19 21 19 20 BD-02-2 20.3 +/- 1.9 20 21 19 21 BD-03-1 20.8 +/- 3.0 19 22 20 22 BD-03-2 21.5 +/- 4.8 19 23 20 24 BD-04-1 20.5 +/- 2.6 19 22 20 21 BD-04-2 20.0 +/- 2.8 18 21 20 21 BD-05-1 21.0 +/- 3.3 19 23 21 21 BD-05-2 20.5 +/- 3.5 19 22 19 22 BD-06-1 20.3 +/- 3.0 19 22 19 21 BD-06-2 20.0 +/- 3.3 18 20 20 22 BD-19-1 20.8 +/- 3.0 20 22 19 22 BD-19-2 20.8 +/- 3.0 19 22 20 22 BD-20-1 21.0 +/- 2.3 20 22 20 22 BD-20-2 20.8 +/- 1.9 20 21 20 22 BD-21-1 20.0 +/- 2.8 18 21 20 21 BD-21-2 20.5 +/- 3.5 20 20 19 23 BD-101-3 20.0 +/- 3.7 18 22 19 21 BD-101-4 20.8 +/- 3.4 20 23 19 21 BD-102-1 19.3 +/- 3.4 17 20 19 21 BD-102-2 20.8 +/- 2.5 19 22 21 21 BD-103-1 21.8 +/- 2.5 20 23 22 22 BD-103-2 21.8 +/- 1.0 21 22 22 22 BD-104-1 19.5 +/- 2.6 18 21 19 20 BD-104-2 19.0 +/- 3.7 17 21 18 20 BD-104-3 22.0 +/- 2.0 - 23 22 21 BD-104-4 21.0 +/- 3.5 - 20 20 23 BD-105-1 20.3 +/- 3.4 18 22 20 21 BD-105-2 20.8 +/- 5.7 21 21 17 24 BD-105-3 18.3 +/- 3.1 - 18 17 20 BD-105-4 20.7 +/- 4.2 - 20 19 23 BD-106-1 20.3 +/- 3.4 18 22 20 21 BD-106-2 20.3 +/- 1.9 19 21 20 21 BD-107-1 20.8 +/- 3.0 19 22 20 22 BD-107-2 20.0 +/- 4.6 18 22 18 22 BD-108-1 19.8 +/- 1.9 19 21 19 20 BD-108-2 20.5 +/- 1.2 20 21 20 21 BD-109-1 24.3 +/- 8.4 20 30 23 24 BD-109-2 22.3 +/- 5.0 19 23 22 25 BD-110-1 21.3 +/- 5.5 18 24 20 23 BD-110-2 20.5 +/- 3.8 18 22 20 22 BD-110-3 19.3 +/- 2.3 - 20 18 20 BD-110-4 20.7 +/- 3.1 - 21 19 22 BD-112-1 20.5 +/- 3.8 18 22 20 22 G-11

Table C-IX.1 QUARTERLY DLR RESULTS FOR BRAIDWOOD STATION, 2011 RESULTS IN UNITS OF MROENTGEN/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-112-2 21.0 +/- 2.3 20 22 20 22 BD-114-1 20.0 +/- 2.8 20 22 19 19 BD-114-2 19.8 +/- 2.5 18 21 20 20 BD-115-1 20.8 +/- 3.4 19 23 20 21 BD-115-2 20.3 +/- 1.9 19 21 20 21 BD-116-1 20.3 +/- 1.9 20 21 19 21 BD-116-2 21.0 +/- 2.8 22 22 19 21 BD-201-1 23.3 +/- 1.9 22 24 23 24 BD-201-2 22.5 +/- 6.2 20 22 21 27 BD-202-1 19.5 +/- 2.6 18 21 19 20 BD-202-2 20.0 +/- 4.3 17 20 21 22 BD-203-1 22.3 +/- 3.0 23 23 20 23 BD-203-2 19.8 +/- 3.0 18 21 19 21 BD-204-1 19.3 +/- 1.0 19 20 19 19 BD-204-2 18.8 +/- 1.9 18 18 19 20 BD-205-1 20.0 +/- 4.3 18 23 19 20 BD-205-2 20.0 +/- 2.8 18 21 20 21 BD-206-1 22.5 +/- 3.8 21 23 21 25 BD-206-2 20.8 +/- 3.0 19 22 20 22 BD-207-1 19.0 +/- 2.8 17 20 19 20 BD-207-2 20.3 +/- 4.4 18 21 19 23 BD-208-1 20.5 +/- 2.6 19 22 20 21 BD-208-2 19.8 +/- 3.0 18 21 19 21 BD-209-1 23.8 +/- 6.2 21 28 22 24 BD-209-2 24.5 +/- 2.6 23 25 24 26 BD-210-1 22.5 +/- 3.5 21 24 21 24 BD-210-2 21.0 +/- 2.3 20 22 20 22 BD-211-1 25.0 +/- 3.7 23 26 24 27 BD-211-2 24.8 +/- 2.5 23 25 25 26 BD-212-3 22.5 +/- 2.0 23 23 21 23 BD-212-4 23.8 +/- 1.9 23 25 23 24 BD-213-3 20.8 +/- 3.0 19 22 20 22 BD-213-4 20.0 +/- 2.3 19 21 19 21 BD-214-1 20.3 +/- 4.1 18 22 19 22 BD-214-2 24.3 +/- 6.4 22 (1) 23 28 BD-215-1 20.0 +/- 1.6 19 21 20 20 BD-215-2 19.3 +/- 1.9 18 20 19 20 BD-216-1 22.8 +/- 3.8 20 23 24 24 BD-216-2 21.5 +/- 3.8 19 23 21 23 BD-111A-1 21.3 +/- 1.9 20 22 22 21 BD-111A-2 20.0 +/- 2.8 20 19 19 22 BD-113A-1 20.8 +/- 2.5 19 22 21 21 BD-113A-2 20.8 +/- 5.0 18 21 20 24 (1) SEE 2011 PROGRAM EXCEPTIONS SECTION FOR EXPLANATION G-12

TABLE C-X.2 MEAN QUARTLY TLD RESULTS FOR THE INNER RING, OUTER RING, OTHER CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2011 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION OF THE STATION DATA COLLECTION INNER RING OUTER RING OTHER CONTROL ISFSI PERIOD +/- 2 S.D.

JAN-MAR 19.1 +/- 2.4 19.8 +/- 4.0 19.1 +/- 1.5 19.0 +/- 0.0 -

APR-JUN 22.0 +/- 3.5 22.3 +/- 4.1 21.4 +/- 1.7 22.5 +/- 1.4 20.3 +/- 3.3 JUL-SEP 19.9 +/- 2.6 20.7 +/- 3.7 19.6 +/- 1.3 20.0 +/- 0.0 19.2 +/- 3.4 OCT-DEC 21.5 +/- 2.6 22.7 +/- 4.8 21.5 +/- 1.5 23.0 +/- 2.8 21.5 +/- 2.8 TABLE C-X.2 MEAN QUARTLY TLD RESULTS FOR THE INNER RING, OUTER RING, OTHER, CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2011 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

INNER RING 128 17 30 20.6 +/- 3.7 OUTER RING 127 17 28 21.4 +/- 4.7 OTHER 56 18 23 20.4 +/- 2.6 CONTROL 8 19 24 21.1 +/- 3.8 ISFSI 18 17 23 20.3 +/- 3.6 INNER RING STATIONS - BD-101-3, BD-101-4, BD-102-1, BD-102-2, BD-103-1, BD-103-2, BD-104-1, BD-104-2, BD-105-1, BD-105-2, BD-106-1, BD-106-2, BD-107-1, BD-107-2, BD-108-1, BD-108-2, BD-109-1, BD-109-2, BD-110-1, BD-110-2, BD-111A-1, BD-111A-2, BD-112-1, BD-112-2, BD-113A-1, BD-113A-2, BD-114-1, BD-114-2, BD-115-1, BD-115-2, BD-116-1, BD-116-2 OUTER RING STATIONS - BD-201-1, BD-201-2, BD-202-1, BD-202-2, BD-203-1, BD-203-2, BD-204-1, BD-204-2, BD-205-1, BD-205-2, BD-206-1, BD-206-2, BD-207-1, BD-207-2, BD-208-1, BD-208-2, BD-209-1, BD-209-2, BD-210-1, BD-210-2, BD-211-1, BD-211-2, BD-212-3, BD-212-4, BD-213-3, BD-213-4, BD-214-1, BD-214-2, BD-215-1, BD-215-2, BD-216-1, BD-216-2 OTHER STATIONS - BD-02-1, BD-02-2, BD-04-1, BD-04-2, BD-05-1, BD-05-2, BD-06-1, BD-06-2, BD-19-1, BD-19-2, BD-20-1, BD-20-2, BD-21-1, BD-21-2 CONTROL STATIONS - BD-03-1, BD-03-2, ISFSI STATIONS - BD-104-3, BD-104-4, BD-105-3, BD-105-4, BD-110-3, BD-110-4 G-13

Intentionally left blank G-14

2012 G-15

Intentionally left blank G-16

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS G-17

Intentionally left blank G-18

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2012 Location Location Description Distance & Direction From Site A. Surface Water BD-10 Kankakee River Downstream (indicator) 5.4 miles NE BD-25 Kankakee River Upstream (control) 9.6 miles E BD-38 Main Drainage Ditch (indicator) 1.5 miles SE BD-40 Braidwood Station Cooling Lake (indicator) Onsite BD-55 North Pond Fatlan Site (Indicator) 0.6 miles NE BD-56 South Pond Fatlan Site (indictor) 0.6 miles NE B. Drinking (Potable) Water BD-22 Wilmington (indicator) 6.0 miles NE C. Ground/Well Water BD-13 Braidwood City Hall Well (indicator) 1.7 miles NNE BD-34 Gibson Well (indicator) 4.7 miles E BD-35 Joly Well (indicator) 4.7 miles E BD-36 Hutton Well (indicator) 4.7 miles E BD-37 Nurczyk Well (indicator) 4.7 miles E BD-50 Skole Well (indicator) 4.7 miles E BD-51 Fatlan Well (indicator) 0.6 miles NE BD-54 Cash Well (indicator) 0.9 miles NE D. Milk - bi-weekly / monthly BD-17 Halpins Dairy (indicator) 5.5 miles SSW BD-18 Biros Farm (control) 8.7 miles W E. Air Particulates / Air Iodine BD-02 Custer Park (indicator) 5.0 miles E BD-03 County Line Road (control) 6.2 miles ESE BD-04 Essex (indicator) 4.8 miles SSE BD-05 Gardner (indicator) 5.5 miles SW BD-06 Godley (indicator) 0.5 miles WSW BD-19 Nearsite NW (indicator) 0.3 miles NW BD-20 Nearsite N (indicator) 0.6 miles N BD-21 Nearsite NE (indicator) 0.5 miles NE F. Fish BD-25 Kankakee River, Upstream (control) 9.6 miles E BD-28 Kankakee River, Discharge (indicator) 5.4 miles E BD-41 Cooling Lake (indicator) 1.0 mile E G. Sediment BD-10 Kankakee River, Downstream (indicator) 5.4 miles NE BD-57 Circulating Water Blowdown Discharge (indicator) 5.4 miles E H. Food Products G-19

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2012 Location Location Description Distance & Direction From Site Quadrant 1 Clark Farm 3.8 miles ENE Quadrant 2 W.F. Soltwisch 4.5 miles SSE Quadrant 3 Terri Schultz 4.8 miles SSW Quadrant 4 Bruce Sinkular 1.9 miles NNW Control Gorman Farm 9.0 miles NE I. Environmental Dosimetry - OSLD Site Boundary BD-101-3 and -4 0.5 miles N BD-102-1 and -2 1.1 miles NNE BD-103-1 and -2 1.0 mile NE BD-104-1 and -2 0.7 miles ENE BD-105-1 and -2 2.2 miles E BD-106-1 and -2 2.5 miles ESE BD-107-1 and -2 3.2 miles SE BD-108-1 and -2 3.2 miles SSE BD-109-1 and -2 3.8 miles S BD-110-1 and -2 2.8 miles SSW BD-111a-1 and -2 1.4 miles SW BD-112-1 and -2 0.7 miles WSW BD-113a-1 and -2 0.5 miles W BD-114-1 and -2 0.4 miles WNW BD-115-1 and -2 0.3 miles NW BD-116-1 0.4 miles NNW BD-116-2 0.5 miles NNW Intermediate Distance BD-201-1 and -2 4.2 miles N BD-202-1 and -2 4.8 miles NNE BD-203-1 and -2 4.9 miles NE BD-204-1 and -2 4.3 miles ENE BD-205-1 and -2 4.0 miles E BD-206-1 and -2 4.5 miles ESE BD-207-1 and -2 4.5 miles SE BD-208-1 and -2 4.5 miles SSE BD-209-1 and -2 4.8 miles S BD-210-1 and -2 5.3 miles SSW BD-211-1 and -2 4.8 miles SW BD-212-3 and -4 5.0 miles WSW BD-213-3 and -4 4.8 miles W BD-214-1 and -2 4.3 miles WNW BD-215-1 and -2 4.5 miles NW BD-216-1 and -2 4.0 miles NNW Other BD-02-1 and -2 Custer Park (indicator) 5.0 miles E BD-04-1 and -2 Essex (indicator) 4.8 miles SSE BD-05-1 and -2 Gardner (indicator) 5.5 miles SW BD-06-1 and -2 Godley (indicator) 0.5 miles WSW BD-19-1 and -2 Nearsite NW (indicator) 0.3 miles NW BD-20-1 and -2 Nearsite N (indicator) 0.6 miles N BD-21-1 and -2 Nearsite NE (indicator) 0.5 miles NE I. Environmental Dosimetry - OSLD (contd)

G-20

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2012 Location Location Description Distance & Direction From Site Control BD-03-1 and -2 13000 W. Road 6.2 miles ESE ISFSI BD-104-3 and -4 0.7 miles ENE BD-105-3 and -4 0.7 miles ENE BD-110-3 and -4 2.8 miles SSW Distance in Miles from the Braidwood Station ISFSI Pad, 2012 Sector Residence Miles (N) W 0.7 (P) WNW 0.7 (Q) NW 0.7 (R) NNW 0.7 Distance in Miles from the Braidwood Station Reactor Buildings, 2012 Sector Residence Livestock Milk Farm Miles Miles Miles (A) N 0.5 2.6 -

(B) NNE 0.9 - -

(C) NE 0.7 0.9 -

(D) ENE 0.8 3.3 -

(E) E 1.5 2.3 -

(F) ESE 2.2 2.3 -

(G) SE 2.7 2.7 -

(H) SSE 4.5 - -

(J) S 4.2 4.8 -

(K) SSW 1.3 5.3 5.5 (L) SW 0.4 1.2 -

(M) WSW 0.5 - -

(N) W 0.4 1.6 -

(P) WNW 0.4 - -

(Q) NW 0.4 - -

(R) NNW 0.4 - -

G-21

Figure B-1 Inner Ring and Other OSLD Locations of the Braidwood Station, 2012 G-22

OSLD Locations Figure B-2 Fixed Air Sampling and Outer Ring OSLD Locations of the Braidwood Station, 2012 G-23

Intentionally left blank G-24

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY G-25

Intentionally left blank G-26

Table C-X.1 QUARTERLY OSLD RESULTS FOR BRAIDWOOD STATION, 2012 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-02-1 19.7 +/- 2.4 20.0 20.8 19.8 18.0 BD-02-2 20.3 +/- 3.5 20.0 22.8 19.5 18.8 BD-03-1 20.1 +/- 3.3 22.0 20.8 19.4 18.2 BD-03-2 20.4 +/- 1.9 21.0 20.8 20.9 19.0 BD-04-1 18.3 +/- 3.1 19.0 20.0 17.7 16.5 BD-04-2 18.8 +/- 2.1 19.0 20.2 18.0 17.9 BD-05-1 20.0 +/- 1.5 20.0 21.0 19.2 19.8 BD-05-2 20.0 +/- 2.4 21.0 21.1 18.9 19.1 BD-06-1 18.7 +/- 2.4 19.0 20.0 18.6 17.1 BD-06-2 19.2 +/- 3.0 19.0 21.4 18.4 18.1 BD-19-1 20.2 +/- 4.7 20.0 23.6 18.3 18.9 BD-19-2 20.0 +/- 2.3 21.0 20.9 19.4 18.6 BD-20-1 19.3 +/- 3.6 19.0 21.3 19.7 17.0 BD-20-2 20.3 +/- 2.9 20.0 22.4 19.5 19.3 BD-21-1 19.7 +/- 2.6 19.0 21.5 19.6 18.6 BD-21-2 19.8 +/- 3.0 22.0 19.6 18.6 19.0 BD-101-3 18.8 +/- 2.6 18.0 20.5 19.0 17.5 BD-101-4 19.2 +/- 5.6 (1) 22.2 18.9 16.6 BD-102-1 19.2 +/- 3.7 19.0 21.1 20.0 16.8 BD-102-2 20.9 +/- 2.4 21.0 22.5 20.0 20.0 BD-103-1 19.0 +/- 3.1 17.0 20.6 19.8 18.6 BD-103-2 19.3 +/- 1.6 20.0 19.9 18.9 18.4 BD-104-1 17.5 +/- 1.7 17.0 18.7 16.8 17.5 BD-104-2 18.0 +/- 2.7 17.0 19.2 19.2 16.7 BD-104-3 19.8 +/- 2.8 20.0 20.5 20.8 17.7 BD-104-4 19.4 +/- 1.7 19.0 20.5 19.5 18.5 BD-105-1 18.3 +/- 4.9 16.0 21.4 19.2 16.7 BD-105-2 19.0 +/- 2.8 19.0 20.9 18.3 17.6 BD-105-3 20.4 +/- 3.0 20.0 21.9 21.3 18.5 BD-105-4 25.2 +/- 2.5 25.0 25.7 26.5 23.5 BD-106-1 17.1 +/- 2.0 18.0 (1) 17.2 16.0 BD-106-2 18.8 +/- 2.3 18.0 20.5 18.7 18.1 BD-107-1 19.3 +/- 2.9 20.0 20.9 17.7 18.4 BD-107-2 18.8 +/- 5.9 17.0 22.4 19.8 15.8 BD-108-1 17.8 +/- 5.0 19.0 19.8 18.3 14.2 BD-108-2 19.6 +/- 2.7 20.0 20.8 19.8 17.6 BD-109-1 22.3 +/- 4.6 21.0 24.8 23.5 19.7 BD-109-2 22.2 +/- 0.8 22.0 22.4 22.6 21.7 BD-110-1 18.9 +/- 1.3 19.0 19.4 19.2 17.9 BD-110-2 18.4 +/- 0.6 18.0 18.6 18.6 18.3 BD-110-3 19.4 +/- 3.8 19.0 21.6 19.9 17.0 BD-110-4 19.9 +/- 3.1 20.0 20.9 20.9 17.6 BD-112-1 18.0 +/- 3.2 17.0 20.4 17.2 17.4 (1) SEE 2012 PROGRAM EXCEPTIONS SECTION FOR EXPLANATION G-27

Table C-X.1 QUARTERLY OSLD RESULTS FOR BRAIDWOOD STATION, 2012 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-112-2 18.1 +/- 1.6 18.0 19.2 18.0 17.2 BD-114-1 20.0 +/- 4.2 18.0 22.9 19.7 19.2 BD-114-2 18.7 +/- 3.1 18.0 20.5 19.2 16.9 BD-115-1 19.1 +/- 3.1 18.0 21.4 18.4 18.7 BD-115-2 18.9 +/- 2.1 19.0 20.3 18.3 17.9 BD-116-1 20.4 +/- 2.5 21.0 21.2 20.8 18.5 BD-116-2 19.2 +/- 2.2 18.0 20.6 18.9 19.1 BD-201-1 24.7 +/- 1.5 25.0 25.2 25.1 23.6 BD-201-2 21.0 +/- 2.0 20.0 21.3 22.2 20.4 BD-202-1 19.8 +/- 4.7 20.0 22.8 19.1 17.2 BD-202-2 19.5 +/- 3.5 18.0 21.7 20.0 18.1 BD-203-1 19.4 +/- 2.5 19.0 20.4 20.4 17.8 BD-203-2 18.6 +/- 3.7 17.0 21.0 19.0 17.3 BD-204-1 18.3 +/- 3.3 18.0 20.2 18.8 16.3 BD-204-2 18.0 +/- 1.4 18.0 18.9 17.3 17.6 BD-205-1 18.5 +/- 3.2 19.0 19.4 19.3 16.1 BD-205-2 18.0 +/- 3.0 17.0 19.4 19.2 16.5 BD-206-1 19.1 +/- 2.8 19.0 20.9 18.8 17.5 BD-206-2 18.2 +/- 2.7 17.0 19.6 19.1 17.1 BD-207-1 18.4 +/- 3.4 17.0 20.9 17.9 17.9 BD-207-2 17.3 +/- 1.8 18.0 16.0 17.4 17.8 BD-208-1 18.4 +/- 1.8 18.0 19.6 18.6 17.5 BD-208-2 18.7 +/- 2.0 18.0 19.1 19.9 17.8 BD-209-1 23.0 +/- 2.2 22.0 24.5 23.0 22.5 BD-209-2 24.2 +/- 1.2 24.0 24.4 24.8 23.4 BD-210-1 21.4 +/- 4.1 20.0 24.1 21.9 19.7 BD-210-2 20.1 +/- 2.0 20.0 21.5 19.8 19.1 BD-211-1 23.7 +/- 5.0 22.0 27.4 23.0 22.4 BD-211-2 24.6 +/- 2.0 25.0 25.7 24.0 23.5 BD-212-3 18.8 +/- 2.8 19.0 20.5 18.4 17.1 BD-212-4 23.8 +/- 2.9 23.0 25.6 24.2 22.3 BD-213-3 18.5 +/- 2.7 19.0 19.9 18.4 16.7 BD-213-4 18.4 +/- 3.5 18.0 20.7 18.3 16.5 BD-214-1 19.0 +/- 3.6 18.0 21.1 (1) 17.9 BD-214-2 21.4 +/- 2.8 22.0 22.9 20.8 19.7 BD-215-1 18.0 +/- 2.7 19.0 18.8 18.2 16.1 BD-215-2 17.9 +/- 1.5 18.0 18.8 17.5 17.1 BD-216-1 20.8 +/- 2.7 22.0 22.0 19.4 19.9 BD-216-2 21.1 +/- 1.8 21.0 22.3 20.9 20.2 BD-111A-1 17.6 +/- 1.9 18.0 18.6 17.2 16.4 BD-111A-2 18.1 +/- 2.8 19.0 16.2 19.2 17.8 BD-113A-1 18.8 +/- 2.2 19.0 19.7 19.1 17.2 BD-113A-2 17.8 +/- 4.1 16.0 20.7 17.5 16.8 (1) SEE 2012 PROGRAM EXCEPTIONS SECTION FOR EXPLANATION G-28

TABLE C-X.2 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING, OUTER RING, OTHER CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2012 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION OF THE STATION DATA COLLECTION INNER RING OUTER RING OTHER CONTROL ISFSI PERIOD +/- 2 S.D.

JAN-MAR 18.5 +/- 3.0 19.7 +/- 4.6 19.9 +/- 1.9 21.5 +/- 1.4 20.5 +/- 4.5 APR-JUN 20.6 +/- 3.2 21.5 +/- 5.0 21.2 +/- 2.3 20.8 +/- 0.0 21.9 +/- 3.9 JUL-SEP 19.0 +/- 2.8 20.2 +/- 4.5 18.9 +/- 1.4 20.2 +/- 2.1 21.5 +/- 5.1 OCT-DEC 17.7 +/- 2.8 18.8 +/- 4.7 18.3 +/- 1.9 18.6 +/- 1.1 18.8 +/- 4.7 TABLE C-X.2 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING, OUTER RING, OTHER, CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2012 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

INNER RING 126 14.2 24.8 19.0 +/- 3.6 OUTER RING 127 16.0 27.4 20.0 +/- 5.1 OTHER 56 16.5 23.6 19.6 +/- 2.8 CONTROL 8 18.2 22.0 20.3 +/- 2.5 ISFSI 24 17.0 26.5 20.7 +/- 4.9 INNER RING STATIONS - BD-101-3, BD-101-4, BD-102-1, BD-102-2, BD-103-1, BD-103-2, BD-104-1, BD-104-2, BD-105-1, BD-105-2, BD-106-1, BD-106-2, BD-107-1, BD-107-2, BD-108-1, BD-108-2, BD-109-1, BD-109-2, BD-110-1, BD-110-2, BD-111A-1, BD-111A-2, BD-112-1, BD-112-2, BD-113A-1, BD-113A-2, BD-114-1, BD-114-2, BD-115-1, BD-115-2, BD-116-1, BD-116-2 OUTER RING STATIONS - BD-201-1, BD-201-2, BD-202-1, BD-202-2, BD-203-1, BD-203-2, BD-204-1, BD-204-2, BD-205-1, BD-205-2, BD-206-1, BD-206-2, BD-207-1, BD-207-2, BD-208-1, BD-208-2, BD-209-1, BD-209-2, BD-210-1, BD-210-2, BD-211-1, BD-211-2, BD-212-3, BD-212-4, BD-213-3, BD-213-4, BD-214-1, BD-214-2, BD-215-1, BD-215-2, BD-216-1, BD-216-2 OTHER STATIONS - BD-02-1, BD-02-2, BD-04-1, BD-04-2, BD-05-1, BD-05-2, BD-06-1, BD-06-2, BD-19-1, BD-19-2, BD-20-1, BD-20-2, BD-21-1, BD-21-2, CONTROL STATIONS - BD-03-1, BD-03-2 ISFSI STATIONS - BD-104-3, BD-104-4, BD-105-3, BD-105-4, BD-110-3, BD-110-4 G-29

Intentionally left blank G-30

2013 G-31

Intentionally left blank G-32

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS G-33

Intentionally left blank G-34

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2013 Location Location Description Distance & Direction From Site A. Surface Water BD-10 Kankakee River Downstream (indicator) 5.4 miles NE BD-25 Kankakee River Upstream (control) 9.6 miles E BD-38 Main Drainage Ditch (indicator) 1.5 miles SE BD-40 Braidwood Station Cooling Lake (indicator) Onsite BD-55 North Pond Fatlan Site (indicator) 0.6 miles NE BD-56 South Pond Fatlan Site (indictor) 0.6 miles NE B. Drinking (Potable) Water BD-22 Wilmington (indicator) 6.0 miles NE C. Ground/Well Water BD-13 Braidwood City Hall Well (indicator) 1.7 miles NNE BD-34 Gibson Well (indicator) 4.7 miles E BD-35 Joly Well (indicator) 4.7 miles E BD-36 Hutton Well (indicator) 4.7 miles E BD-37 Nurczyk Well (indicator) 4.7 miles E BD-50 Skole Well (indicator) 4.7 miles E BD-51 Fatlan Well (indicator) 0.6 miles NE BD-54 Cash Well (indicator) 0.9 miles NE D. Milk - bi-weekly / monthly BD-17 Halpins Dairy (indicator) 5.5 miles SSW BD-18 Biros Farm (control) 8.7 miles W E. Air Particulates / Air Iodine BD-02 Custer Park (indicator) 5.0 miles E BD-03 County Line Road (control) 6.2 miles ESE BD-04 Essex (indicator) 4.8 miles SSE BD-05 Gardner (indicator) 5.5 miles SW BD-06 Godley (indicator) 0.5 miles WSW BD-19 Nearsite NW (indicator) 0.3 miles NW BD-20 Nearsite N (indicator) 0.6 miles N BD-21 Nearsite NE (indicator) 0.5 miles NE F. Fish BD-25 Kankakee River, Upstream (control) 9.6 miles E BD-28 Kankakee River, Discharge (indicator) 5.4 miles E BD-41 Cooling Lake (indicator) 1.0 mile E G. Sediment BD-10 Kankakee River, Downstream (indicator) 5.4 miles NE BD-25 Kankakee River Upstream (control) 9.6 miles E BD-57 Circulating Water Blowdown Discharge (indicator) 5.4 miles E G-35

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2013 Location Location Description Distance & Direction From Site H. Food Products Quadrant 1 Clark Farm 3.8 miles ENE Quadrant 2 W.F. Soltwisch 4.5 miles SSE Quadrant 3 Terri Schultz 4.8 miles SSW Quadrant 4 Bruce Sinkular 1.9 miles NNW Control Gorman Farm 9.0 miles NE I. Environmental Dosimetry - OSLD Site Boundary BD-101-3 and -4 0.5 miles N BD-102-1 and -2 1.1 miles NNE BD-103-1 and -2 1.0 mile NE BD-104-1 and -2 0.7 miles ENE BD-105-1 and -2 2.2 miles E BD-106-1 and -2 2.5 miles ESE BD-107-1 and -2 3.2 miles SE BD-108-1 and -2 3.2 miles SSE BD-109-1 and -2 3.8 miles S BD-110-1 and -2 2.8 miles SSW BD-111a-1 and -2 1.4 miles SW BD-112-1 and -2 0.7 miles WSW BD-113a-1 and -2 0.5 miles W BD-114-1 and -2 0.4 miles WNW BD-115-1 and -2 0.3 miles NW BD-116-1 0.4 miles NNW BD-116-2 0.5 miles NNW Intermediate Distance BD-201-1 and -2 4.2 miles N BD-202-1 and -2 4.8 miles NNE BD-203-1 and -2 4.9 miles NE BD-204-1 and -2 4.3 miles ENE BD-205-1 and -2 4.0 miles E BD-206-1 and -2 4.5 miles ESE BD-207-1 and -2 4.5 miles SE BD-208-1 and -2 4.5 miles SSE BD-209-1 and -2 4.8 miles S BD-210-1 and -2 5.3 miles SSW BD-211-1 and -2 4.8 miles SW BD-212-3 and -4 5.0 miles WSW BD-213-3 and -4 4.8 miles W BD-214-1 and -2 4.3 miles WNW BD-215-1 and -2 4.5 miles NW BD-216-1 and -2 4.0 miles NNW Other BD-02-1 and -2 Custer Park (indicator) 5.0 miles E BD-04-1 and -2 Essex (indicator) 4.8 miles SSE BD-05-1 and -2 Gardner (indicator) 5.5 miles SW BD-06-1 and -2 Godley (indicator) 0.5 miles WSW BD-19-1 and -2 Nearsite NW (indicator) 0.3 miles NW BD-20-1 and -2 Nearsite N (indicator) 0.6 miles N BD-21-1 and -2 Nearsite NE (indicator) 0.5 miles NE G-36

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2013 Location Location Description Distance & Direction From Site I. Environmental Dosimetry - OSLD (contd)

Control BD-03-1 and -2 13000 W. Road 6.2 miles ESE ISFSI BD-104-3 and -4 0.7 miles ENE BD-105-3 and -4 0.7 miles ENE BD-110-3 and -4 2.8 miles SSW Distance in Miles from the Braidwood Station ISFSI Pad, 2013 Sector Residence Miles (N) W 0.7 (P) WNW 0.7 (Q) NW 0.7 (R) NNW 0.7 Distance in Miles from the Braidwood Station Reactor Buildings, 2013 Sector Residence Livestock Milk Farm Miles Miles Miles (A) N 0.5 2.6 -

(B) NNE 0.9 - -

(C) NE 0.7 0.9 -

(D) ENE 0.8 3.3 -

(E) E 1.5 2.3 -

(F) ESE 2.2 2.3 -

(G) SE 2.7 2.7 -

(H) SSE 4.5 - -

(J) S 4.2 4.8 -

(K) SSW 1.3 5.3 5.5 (L) SW 0.4 1.2 -

(M) WSW 0.5 - -

(N) W 0.4 1.6 -

(P) WNW 0.4 - -

(Q) NW 0.4 - -

(R) NNW 0.4 - -

G-37

Figure B-1 Inner Ring and Other OSLD Locations of the Braidwood Station, 2013 G-38

Figure B-2 Fixed Air Sampling and Outer Ring OSLD Locations of the Braidwood Station, 2013 G-39

Intentionally left blank G-40

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY G-41

Intentionally left blank G-42

Table C-X.1 QUARTERLY OSLD RESULTS FOR BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-02-1 19.4 +/- 4.9 16.6 19.5 19.0 22.6 BD-02-2 19.1 +/- 4.4 16.9 17.9 19.9 21.8 BD-03-1 19.5 +/- 4.3 17.1 18.4 20.3 22.0 BD-03-2 19.8 +/- 4.1 17.3 18.8 21.4 21.5 BD-04-1 18.6 +/- 4.5 16.9 16.9 18.9 21.7 BD-04-2 18.2 +/- 5.6 16.1 15.9 18.7 21.9 BD-05-1 19.5 +/- 3.6 17.4 19.0 19.9 21.7 BD-05-2 19.4 +/- 4.4 17.0 18.4 19.9 22.1 BD-06-1 17.9 +/- 3.8 16.0 17.7 17.4 20.5 BD-06-2 18.3 +/- 4.3 16.0 17.2 19.0 20.9 BD-19-1 19.3 +/- 4.2 17.3 17.8 20.3 21.7 BD-19-2 20.4 +/- 4.8 17.3 20.4 20.9 23.1 BD-20-1 19.2 +/- 3.7 17.3 18.2 19.9 21.5 BD-20-2 19.5 +/- 5.0 17.3 17.8 20.1 22.8 BD-21-1 18.6 +/- 3.9 17.0 16.8 19.7 20.7 BD-21-2 19.0 +/- 4.7 16.8 17.2 20.6 21.5 BD-101-3 19.5 +/- 4.0 17.6 18.5 19.8 22.2 BD-101-4 19.3 +/- 3.4 17.3 18.8 19.7 21.4 BD-102-1 18.3 +/- 4.1 16.6 16.7 19.1 20.8 BD-102-2 20.6 +/- 6.1 18.1 18.6 21.0 24.8 BD-103-1 18.8 +/- 3.6 16.2 19.1 19.2 20.5 BD-103-2 20.1 +/- 3.5 17.8 19.7 21.8 21.1 BD-104-1 18.4 +/- 6.7 14.8 (1) 18.8 21.5 BD-104-2 18.3 +/- 3.4 16.6 18.2 17.6 20.6 BD-104-3 20.8 +/- 4.4 17.8 20.6 21.5 23.1 BD-104-4 20.9 +/- 7.4 16.9 18.7 23.2 24.7 BD-105-1 18.0 +/- 5.1 15.6 16.8 18.2 21.5 BD-105-2 18.8 +/- 5.1 16.8 16.5 19.8 21.9 BD-105-3 21.9 +/- 6.2 17.6 21.7 23.8 24.5 BD-105-4 22.7 +/- 3.0 21.5 21.9 22.5 24.8 BD-106-1 17.2 +/- 4.5 14.7 17.3 16.7 20.2 BD-106-2 18.0 +/- 4.5 15.4 18.0 17.7 20.9 BD-107-1 17.5 +/- 5.1 14.1 16.9 19.1 19.8 BD-107-2 18.1 +/- 4.3 16.1 16.3 20.0 19.8 BD-108-1 18.1 +/- 4.3 15.4 18.7 17.8 20.6 BD-108-2 18.9 +/- 4.6 16.0 18.5 19.7 21.5 BD-109-1 22.2 +/- 5.9 19.2 20.8 22.8 26.1 BD-109-2 21.5 +/- 5.5 18.7 19.6 23.0 24.5 BD-110-1 17.9 +/- 4.6 15.4 17.1 18.0 20.9 BD-110-2 17.9 +/- 4.7 15.5 17.2 17.9 21.1 BD-110-3 19.6 +/- 4.9 16.8 18.5 20.9 22.3 BD-110-4 19.3 +/- 6.2 16.8 17.3 19.5 23.6 BD-112-1 18.3 +/- 4.2 16.0 17.5 18.8 21.0 (1) SEE 2013 PROGRAM EXCEPTIONS SECTION FOR EXPLANATION G-43

Table C-X.1 QUARTERLY OSLD RESULTS FOR BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

BD-112-2 18.6 +/- 5.1 16.1 17.5 18.6 22.1 BD-114-1 19.6 +/- 5.5 17.5 18.3 19.1 23.6 BD-114-2 18.4 +/- 4.2 16.8 16.7 19.0 21.1 BD-115-1 18.9 +/- 3.2 16.9 18.3 19.8 20.5 BD-115-2 19.0 +/- 4.7 17.2 17.5 18.8 22.3 BD-116-1 19.7 +/- 3.5 18.0 19.0 19.6 22.1 BD-116-2 19.5 +/- 4.2 17.4 18.7 19.3 22.4 BD-201-1 24.3 +/- 7.1 20.5 (1) 24.7 27.6 BD-201-2 20.8 +/- 5.9 17.7 (1) 21.3 23.5 BD-202-1 18.7 +/- 5.2 16.6 17.3 18.5 22.4 BD-202-2 19.0 +/- 4.5 16.7 17.8 19.4 21.9 BD-203-1 19.3 +/- 4.5 16.1 19.6 19.9 21.4 BD-203-2 18.1 +/- 3.4 16.5 16.8 19.3 19.8 BD-204-1 17.6 +/- 4.5 14.6 18.0 17.7 20.0 BD-204-2 18.1 +/- 5.6 15.2 18.2 17.0 21.8 BD-205-1 18.1 +/- 5.1 15.5 16.5 19.3 21.1 BD-205-2 16.8 +/- 2.7 15.9 16.2 18.4 (1)

BD-206-1 19.4 +/- 4.6 16.9 18.2 20.1 22.2 BD-206-2 19.3 +/- 4.3 16.6 18.9 19.7 21.8 BD-207-1 17.8 +/- 5.2 14.4 17.1 19.2 20.3 BD-207-2 18.3 +/- 4.8 15.8 17.2 18.7 21.4 BD-208-1 18.6 +/- 4.4 16.3 17.8 18.8 21.5 BD-208-2 19.0 +/- 5.1 17.0 17.2 19.2 22.5 BD-209-1 22.9 +/- 4.4 20.6 21.9 23.2 25.8 BD-209-2 24.7 +/- 6.4 21.4 23.8 24.4 29.1 BD-210-1 20.1 +/- 2.8 19.9 19.2 19.2 22.2 BD-210-2 21.8 +/- 6.1 17.6 21.6 23.4 24.6 BD-211-1 23.4 +/- 5.1 20.0 23.6 23.8 26.2 BD-211-2 24.1 +/- 6.2 19.6 24.6 26.3 25.9 BD-212-3 20.1 +/- 5.1 16.6 20.6 20.4 22.7 BD-212-4 23.5 +/- 5.2 20.6 22.8 23.9 26.8 BD-213-3 17.3 +/- 3.2 15.3 17.5 17.2 19.2 BD-213-4 17.9 +/- 5.1 15.5 16.8 17.7 21.4 BD-214-1 19.2 +/- 6.3 15.8 17.3 20.9 22.6 BD-214-2 22.2 +/- 5.5 18.5 21.9 23.3 25.0 BD-215-1 18.5 +/- 3.7 16.2 17.9 20.0 20.0 BD-215-2 18.0 +/- 4.9 15.4 16.5 19.3 20.7 BD-216-1 20.5 +/- 4.7 18.0 19.4 20.9 23.5 BD-216-2 20.5 +/- 3.5 18.5 21.5 21.5 (1)

BD-111A-1 18.2 +/- 4.3 15.5 18.1 18.5 20.7 BD-111A-2 19.2 +/- 5.6 15.4 18.8 20.4 22.0 BD-113A-1 18.6 +/- 4.5 16.4 17.6 18.8 21.6 BD-113A-2 18.9 +/- 3.8 16.7 17.8 20.4 20.5 (1) SEE 2013 PROGRAM EXCEPTIONS SECTION FOR EXPLANATION G-44

TABLE C-X.2 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING, OUTER RING, OTHER CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION OF THE STATION DATA COLLECTION INNER RING OUTER RING OTHER CONTROL ISFSI PERIOD +/- 2 S.D.

JAN-MAR 16.5 +/- 2.4 17.2 +/- 3.9 16.9 +/- 1.0 17.2 +/- 0.3 17.9 +/- 3.6 APR-JUN 18.0 +/- 2.1 19.1 +/- 4.9 17.9 +/- 2.3 18.6 +/- 0.6 19.8 +/- 3.8 JUL-SEP 19.3 +/- 2.8 20.5 +/- 4.8 19.6 +/- 1.8 20.9 +/- 1.6 21.9 +/- 3.2 OCT-DEC 21.6 +/- 2.8 22.8 +/- 5.0 21.8 +/- 1.5 21.8 +/- 0.7 23.8 +/- 2.0 TABLE C-X.2 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING, OUTER RING, OTHER, CONTROL AND ISFSI LOCATIONS FOR BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

INNER RING 127 14.1 26.1 18.9 +/- 4.5 OUTER RING 124 14.4 29.1 19.9 +/- 6.2 OTHER 56 15.9 23.1 19.0 +/- 4.1 CONTROL 8 17.1 22.0 19.6 +/- 3.9 ISFSI 24 16.8 24.8 20.9 +/- 5.5 INNER RING STATIONS - BD-101-3, BD-101-4, BD-102-1, BD-102-2, BD-103-1, BD-103-2, BD-104-1, BD-104-2, BD-105-1, BD-105-2, BD-106-1, BD-106-2, BD-107-1, BD-107-2, BD-108-1, BD-108-2, BD-109-1, BD-109-2, BD-110-1, BD-110-2, BD-111A-1, BD-111A-2, BD-112-1, BD-112-2, BD-113A-1, BD-113A-2, BD-114-1, BD-114-2, BD-115-1, BD-115-2, BD-116-1, BD-116-2 OUTER RING STATIONS - BD-201-1, BD-201-2, BD-202-1, BD-202-2, BD-203-1, BD-203-2, BD-204-1, BD-204-2, BD-205-1, BD-205-2, BD-206-1, BD-206-2, BD-207-1, BD-207-2, BD-208-1, BD-208-2, BD-209-1, BD-209-2, BD-210-1, BD-210-2, BD-211-1, BD-211-2, BD-212-3, BD-212-4, BD-213-3, BD-213-4, BD-214-1, BD-214-2, BD-215-1, BD-215-2, BD-216-1, BD-216-2 OTHER STATIONS - BD-02-1, BD-02-2, BD-04-1, BD-04-2, BD-05-1, BD-05-2, BD-06-1, BD-06-2, BD-19-1, BD-19-2, BD-20-1, BD-20-2, BD-21-1, BD-21-2, CONTROL STATIONS - BD-03-1, BD-03-2 ISFSI STATIONS - BD-104-3, BD-104-4, BD-105-3, BD-105-4, BD-110-3, BD-110-4 G-45

Intentionally left blank APPENDIX H ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

Intentionally left blank Docket No: 50-456 50-457 BRAIDWOOD STATION UNITS 1 and 2 Annual Radiological Groundwater Protection Program Report 1 January through 31 December 2014 Prepared By Teledyne Brown Engineering Environmental Services Braidwood Station Braceville, IL 60407 May 2015

Intentionally left blank Table Of Contents I. Summary and Conclusions .............................................................................................. 1 II. Introduction ..................................................................................................................... 2 A. Objectives of the RGPP ...................................................................................... 2 B. Implementation of the Objectives ........................................................................ 2 C. Program Description ........................................................................................... 3 D. Characteristics of Tritium (H-3) ........................................................................... 3 III. Program Description ...................................................................................................... 4 A. Sample Analysis .................................................................................................. 4 B. Data Interpretation............................................................................................... 4 C. Background Analysis........................................................................................... 5

1. Background Concentrations of Tritium ..................................................... 6 IV. Results and Discussion ................................................................................................. 7 A. Missed Samples .................................................................................................. 7 B. Groundwater Results........................................................................................... 8 C. Surface Water Results ........................................................................................ 9 D. Drinking Water Well Survey .............................................................................. 10 E. Summary of Results - Inter-laboratory Comparison Program .......................... 10 F. Leaks, Spills, and Releases .............................................................................. 10 G. Trends ............................................................................................................... 10 H. Investigations .................................................................................................... 11 I. Actions Taken ..................................................................................................... 11 i

Appendices Appendix A Location Designation Tables Table A-1 Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2014 Figures Figure A-1 Sampling Locations near the Site Boundary of the Braidwood Station, 2014 Figure A-2 Intermediate Sampling Locations of the Braidwood Station, 2014 Figure A-3 Distant Sampling Locations of the Braidwood Station, 2014 Appendix B Data Tables Tables Table B-I.1 Concentrations of Tritium, Strontium, Gross Alpha and Gross Beta in Groundwater Samples Collected in the Vicinity of Braidwood Station, 2014.

Table B-I.2 Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Braidwood Station, 2014.

Table B-I.3 Concentrations of Hard-To-Detects in Groundwater Samples Collected in the Vicinity of Braidwood Station, 2014.

Table B-II.1 Concentrations of Tritium, Strontium, Gross Alpha and Gross Beta in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2014.

Table B-II.2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2014.

ii

I. Summary and Conclusions In 2014, Exelon continued a comprehensive program that evaluates the impact of station operations on groundwater and surface water in the vicinity of Braidwood Station. This evaluation involved numerous station personnel and contractor support personnel. This report covers groundwater and surface water samples collected from the environment, both on and off station property, in 2014. During that time period, 751 analyses were performed on 275 samples from 72 locations.

In assessing all the data gathered for this report, it was concluded that the operation of Braidwood Station had no adverse radiological impact on the environment.

Gamma-emitting radionuclides associated with licensed plant operations 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. In the case of tritium, Exelon specified that its laboratories achieve a lower limit of detection 10 times less than Braidwoods ODCM and 100 times less than federal regulation.

Strontium-89/90 was not detected at a concentration greater than the LLD of 10.0 and 1.0 picoCuries per liter (pCi/L) respectively in any of the groundwater samples tested.

No tritium was detected in the groundwater or surface water samples at concentrations greater than the United States Environmental Protection Agency (USEPA) drinking water standard (and the Nuclear Regulatory Commission Reporting Limit) of 20,000 pCi/L. Low levels of tritium were detected in groundwater and surface water at concentrations greater than the LLD of 200 pCi/L in 73 of 267 analyses. The tritium concentrations ranged from 164 +/- 101 pCi/L to 4,020 +/- 453 pCi/L. The tritium that was detected in the groundwater or surface water is believed to be the result of isolated historical releases and/or background from external sources greater than 200 pCi/L.

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater and surface water samples throughout the sampling year in 2014. Gross Alpha (dissolved) was detected in two groundwater and surface water samples. The concentrations ranged from 0.9 to 21.3 pCi/L. Gross Alpha (suspended) was detected in two groundwater samples. The concentrations ranged from 2.8 to 4.0 pCi/L. Gross Beta (dissolved) was detected in 53 groundwater and surface water samples. The concentrations ranged from 1.0 to 49.3 pCi/L. Gross Beta (suspended) was detected in three groundwater samples. The concentrations ranged from 2.5 to 7.2 pCi/L.

Hard-To-Detect, or difficult to measure nuclides, were not sampled or analyzed in 2014.

II. Introduction Braidwood Station, a two-unit PWR station is located in Will County, Illinois, fifteen (15) miles south-southwest of Joliet, Illinois. Each reactor is designed to have a capacity of 3,587 thermal megawatts. Units No. 1 went critical on May 29, 1987 and Unit No. 2 went critical on March 8, 1988. The station has been designed to keep releases to the environment at levels below those specified in the regulations.

This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Environmental Inc. Midwest Labs (EIML) on samples collected in 2014.

A. Objective of the Radiological Groundwater Protection Program (RGPP)

The long-term objectives of the RGPP are as follows:

1. Identify suitable locations to monitor and evaluate potential impacts from station operations to preclude 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 Braidwood Station as discussed below:

1. Exelon identified locations to monitor and evaluated potential impacts from station operations.

2. The Braidwood Station reports describe the local hydrogeologic regime. Periodically, the flow patterns on the surface and shallow subsurface are updated based on ongoing measurements.

3. Braidwood Station will continue to perform routine sampling and radiological analysis of water from selected locations.

4. Braidwood Station has implemented procedures to identify and report new leaks, spills, or other detections with potential radiological significance in a timely manner.

5. Braidwood 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-1 through A-3, Appendix A.

Groundwater and Surface Water Samples of groundwater and surface water are collected, managed, transported and analyzed in accordance with EPA methods. Sample locations, sample collection frequencies and analytical frequencies are managed 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 as it is received. Additionally, analytical data results are reviewed by an independent hydrogeologist for adverse trends or changes to hydrogeologic conditions.

D. Characteristics of Tritium (H-3)

Tritium is a radioactive isotope of hydrogen. Its chemical properties are the same as hydrogen. Tritiated water behaves the same as ordinary water in both the environment and the body. Tritiated water can be taken into the body by drinking water, breathing air, eating food or absorption through the skin. Once tritiated water enters the body, it disperses quickly and is uniformly distributed. Tritiated water is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days. With such a short biological half-life, an acute ingestion would be cleared rapidly. Organically bound tritium (tritium that is incorporated into carbon containing compounds) can remain in the body for a longer period.

Tritium is produced naturally in the upper atmosphere when cosmic rays interact with air molecules. Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity and in special production reactors. 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 non tritiated groundwater.

III. Program Description A. Sample Analysis This section describes the general analytical methodologies used by Teledyne Brown Engineering (TBE) and Environmental Incorporated Midwest Laboratory (EIML) to analyze the environmental samples for radioactivity for the Braidwood Station RGPP in 2014.

In order to achieve the stated objectives, the current program includes the following analyses:

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. Concentrations of Gross Alpha and Gross Beta (Dissolved and Suspended) in groundwater and surface water.

5. Concentrations of Am-241 in groundwater.

6. Concentrations of Cm-242 and Cm-243/244 in groundwater.

7. Concentrations of Pu-238 and Pu-239/240 in groundwater.

8. Concentrations of U-234, U-235 and U-238 in groundwater.

9. Concentrations of Fe-55 in groundwater.

10. Concentrations of Ni-63 in groundwater.

B. Data Interpretation The radiological data collected prior to Braidwood Station becoming operational were used as a baseline with which these operational data were compared. For the purpose of this report, Braidwood 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. Exelon 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. Exelon reports the TPU by following the result with plus or minus (+/-) the estimated sample standard deviation, as TPU, that is obtained by propagating all sources of analytical uncertainty in measurements.

Analytical uncertainties are reported at the 95% confidence level in this report for reporting consistency with the AREOR.

Gamma spectroscopy results for each type of sample were grouped as follows:

For groundwater and surface water 14 nuclides, Be-7, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, I-131, Cs-134, Cs-137, Ba-140 and La-140 were reported.

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 Braidwood Nuclear Power Station Commonwealth Edison Company, Annual Report 1986, May 1987.

1. Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others.

a. Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. In the upper atmosphere, Cosmogenic tritium is produced from the bombardment of stable nuclides and combines with oxygen to form tritiated water, which will then enter the hydrologic cycle. Below ground, lithogenic tritium is produced by the bombardment of natural lithium present in crystalline rocks by neutrons produced by the radioactive decay of naturally abundant uranium and thorium. Lithogenic production of tritium is usually negligible compared to other sources due to the limited abundance of lithium in rock. The lithogenic tritium is introduced directly to groundwater.

A major anthropogenic source of tritium and strontium-90 comes from the former atmospheric testing of thermonuclear weapons. Levels of tritium in precipitation increased significantly during the 1950s and early 1960s and later with additional testing, resulting in the release of significant amounts of tritium to the atmosphere. The Canadian heavy water nuclear power reactors, other commercial power reactors, nuclear research and weapons production continue to influence tritium concentrations in the environment.

b. Precipitation Data Precipitation samples are routinely collected at stations 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 USEPAs RadNet database. GNIP provides tritium precipitation concentration data for samples collected world wide from 1960 to 2014.

RadNet provides tritium precipitation concentration data for samples collected at stations through out the U.S. from 1960 up to and including 2014. 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 was elevated in tritium.

c. Surface Water Data Tritium concentrations are routinely measured in large surface water bodies, including Lake Michigan and the Mississippi River. Illinois surface water data were typically less than 100 pCi/L.

The USEPA RadNet surface water data typically has a reported Combined Standard Uncertainty of 35 to 50 pCi/L.

According to USEPA, this corresponds to a +/- 70 to 100 pCi/L 95% confidence bound on each given measurement.

Therefore, the typical background data provided may be subject to measurement uncertainty of approximately +/- 70 to 100 pCi/L.

The radio-analytical laboratory is counting tritium results to an Exelon specified LLD of 200 pCi/L. Typically, the lowest positive measurement will be reported within a range of 40 -

240 pCi/L or 140 +/- 100 pCi/L. Clearly, these sample results cannot be distinguished as different from background at this concentration.

IV. Results and Discussion A. Missed Sample Exelon maintains a RGPP as part of the nuclear industry's voluntary groundwater protection initiative as described in NEI 07-07. As part of this program, samples are obtained routinely from monitoring wells and surface waters at Braidwood based on the frequencies outlined in station procedures.

According to the Station RGPP, the following remediation wells were not sampled in 2014; BL-11, MW-11, MW-2, MW-4, MW-7, MW-BW-201S, MW-BW-202S, MW-BW-203S, VB-10-1, MW-134D, MW-BW-130D, MW-BW-141D, MW-BW-142D, MW-BW-143D, MW-BW-207I, 0WM31P, RW-10, RW-5, RW-6, RW-7, and RW-9. Additionally one surface water sample was missed in 2014; Ditch (DS-2). The Station RGPP requires the wells designated as detection wells to be sampled and analyzed for tritium on a quarterly basis. The aforementioned locations were not sampled during one or more of the quarters in 2014. Reasons for lack of sampling include well condition deficiencies, low well production, frozen water preventing sampling and remediation pumps not working.

The Station RGPP also requires designated detection wells be analyzed for gamma-radionuclides, gross-alpha and beta, and strontium 89/90 on an annual basis. Remediation well RW-9 did not have these analyses performed during 2014.

The sample was not able to be obtained because RW-9 was not operating.

B. Groundwater Results Groundwater Samples were collected from on and off-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.

Tritium values ranged from the lower detection limit to 4,020 pCi/l These wells are located onsite and are not available as a drinking water source. Some contamination still exists and monitoring is ongoing (Table B-I.1, Appendix B).

Strontium Strontium-89 and Strontium-90 were analyzed for in 63 samples.

Strontium-89 was less than the required detection limit of 10.0 pCi/liter. Strontium-90 was less than the required detection limit of 1.0 pCi/liter (Table B-I.1, Appendix B).

Gross Alpha and Beta (dissolved and suspended)

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater and surface water samples throughout the sampling year in 2014. Gross Alpha (dissolved) was detected in two groundwater and surface water samples. The concentrations ranged from 0.9 to 21.3 pCi/L. Gross Alpha (suspended) was detected in two groundwater samples. The concentrations ranged from 2.8 to 4.0 pCi/L. Gross Beta (dissolved) was detected in 53 groundwater and surface water samples. The concentrations ranged from 1.0 to 49.3 pCi/L. Gross Beta (suspended) was detected in three groundwater samples.

The concentrations ranged from 2.5 to 7.2 pCi/L. Gross alpha and gross beta are routinely seen in environmental samples and are not necessarily attributable to Stations effluents (Table B-I.1, Appendix B).

Hard-To-Detect Hard-To-Detect analyses were not performed in 2014 (Table B-I.3, Appendix B).

Gamma Emitters Naturally occurring K-40 was detected in two samples. The concentrations ranged from 64 to 185 pCi/L. No other gamma emitting nuclides were detected in any of the samples analyzed.

(Table B-I.2, Appendix B)

C. Surface Water Results Surface Water Samples were collected from three surface water locations 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-II.1, Appendix B). Tritium values ranged from the minimum detection limit to 255 pCi/l.

Strontium Strontium-89 and Strontium-90 were analyzed for in two samples.

Strontium-89 was less than the required detection limit of 10.0 pCi/liter. Strontium-90 was less than the required detection limit of 1.0 pCi/liter (Table B-II.1, Appendix B).

Gamma Emitters No gamma emitting nuclides were detected in any of the samples analyzed (Table B-II.2, Appendix B).

D. Drinking Water Well Survey Requested drinking water wells near Braidwood Station were sampled on a quarterly basis in 2014.

E. Summary of Results - Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE are presented in the AREOR.

F. Leaks, Spills, and Releases There are no new previously unidentified leaks or plumes at Braidwood Station.

G. Trends and Analyses Monitoring of remediation activities indicate that tritium concentrations in affected areas have remained relatively unchanged since 2010. Tritium has been routinely detected in samples from remediation well RW-6 since rd th 2008, however sampling results from the 3 and 4 quarter of 2014 show nd a significant increase over the 2 quarter 2014 results when tritium concentration measurements were less than LLD.

Tritium concentrations measured in RW-6 are likely due to the migration of a known plume, caused by identified historic spills and leaks at the Station.

H. Investigations There were no investigations that took place in 2014 as a result of groundwater sample result. Location RW-6 will continue to be monitored to evaluate whether the elevated results in the 3rd and 4th quarter of 2014 were due to the migration of a former plume or if there is a potential release from the blowdown line.

I. Actions Taken

1. Compensatory Actions No compensatory actions were initiated in 2014.

2. Installation of Monitoring Wells No new monitoring wells were installed in 2014.

3. Actions to Recover/Reverse Plumes No actions were undertaken to recover/reverse plumes in 2014.

Intentionally left blank APPENDIX A LOCATION DESIGNATION

Intentionally left blank TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2014 Station Code Sample Description BL-03 Monitoring Well BL-06 Monitoring Well BL-06D Monitoring Well BL-09D Monitoring Well BL-10D Monitoring Well BL-11 Monitoring Well BL-11D Monitoring Well BL-12D Monitoring Well BL-13D Monitoring Well BL-14D Monitoring Well BL-15D Monitoring Well BL-16D Monitoring Well BL-17D Monitoring Well BL-18D Monitoring Well BL-21 Monitoring Well BL-22 Monitoring Well BL-23 Monitoring Well BL-24 Monitoring Well BL-25 Monitoring Well BL-26 Monitoring Well BL-27 Monitoring Well D-2D Surface Water D-3D Surface water DITCH (DS-2) Surface Water EXELON POND Surface Water F-1D Monitoring Well F-3D Monitoring Well F-3DR Monitoring Well F-4D Monitoring Well F-5D Monitoring Well F-6D Monitoring Well F-8D Monitoring Well F-9D Monitoring Well MW-102R Monitoring Well MW-103 Monitoring Well MW-105 Monitoring Well MW-105D Monitoring Well MW-106D Monitoring Well MW-107 Monitoring Well MW-109D Monitoring Well MW-11 Monitoring Well MW-110 Monitoring Well MW-111 Monitoring Well MW-111DR Monitoring Well MW-112D Monitoring Well MW-113 Monitoring Well MW-113DR Monitoring Well MW-13 Monitoring Well MW-130D Monitoring Well MW-131D Monitoring Well MW-132D Monitoring Well A-1

TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2014 Station Code Sample Description MW-133D Monitoring Well MW-134D Monitoring Well MW-135D Monitoring Well MW-136D Monitoring Well MW-137D Monitoring Well MW-138D Monitoring Well MW-139D Monitoring Well MW-14 Monitoring Well MW-140D Monitoring Well MW-141D Monitoring Well MW-142D Monitoring Well MW-143D Monitoring Well MW-144D Monitoring Well MW-145D Monitoring Well MW-154 Monitoring Well MW-155 Monitoring Well MW-156 Monitoring Well MW-158D Monitoring Well MW-159D Monitoring Well MW-160D Monitoring Well MW-161D Monitoring Well MW-162D Monitoring Well MW-2 Monitoring Well MW-22 Monitoring Well MW-4 Monitoring Well MW-5 Monitoring Well MW-6 Monitoring Well MW-7 Monitoring Well MW-9 Monitoring Well MW-BW-201BD Monitoring Well MW-BW-201I Monitoring Well MW-BW-201S Monitoring Well MW-BW-202I Monitoring Well MW-BW-202S Monitoring Well MW-BW-203I Monitoring Well MW-BW-203S Monitoring Well MW-BW-204I Monitoring Well MW-BW-205I Monitoring Well MW-BW-206I Monitoring Well MW-BW-207I Monitoring Well MW-BW-208BD Monitoring Well OWM31P Monitoring Well P-2D Monitoring Well P-4D Monitoring Well P-5D Monitoring Well P-13D Monitoring Well P-14D Monitoring Well RW-10 Monitoring Well RW-5 Monitoring Well A-2

TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2014 Station Code Sample Description RW-6 Monitoring Well RW-7 Monitoring Well RW-8 Monitoring Well RW-9 Monitoring Well S-1D Monitoring Well S-2D Monitoring Well S-4 Monitoring Well S-4D Monitoring Well S-5 Monitoring Well S-6 Monitoring Well S-7D Monitoring Well S-8 Monitoring Well S-8DR Monitoring Well SG-BW-105 Surface Water SG-BW-106 Surface Water SW-101 Surface Water SW-102 POINT C Surface Water SW-103 Surface Water SW-104 A DITCH Surface Water TB-20 Monitoring Well TB-20D Monitoring Well TB-21 Monitoring Well TB-21D Monitoring Well TB-22 Monitoring Well TB-22D Monitoring Well TB-23 Monitoring Well TB-23D Monitoring Well TB-24 Monitoring Well TB-24D Monitoring Well TB-25 Monitoring Well TB-25D Monitoring Well TB-26D Monitoring Well VB10-1 Monitoring Well VB10-1R Monitoring Well VB1-1 Monitoring Well VB1-10 Monitoring Well VB1-10D Monitoring Well VB11-1 Monitoring Well VB1-11 Monitoring Well VB1-11D Monitoring Well VB1-12D Monitoring Well VB1-2 Monitoring Well VB1-2D Monitoring Well VB1-3 Monitoring Well VB1-3D Monitoring Well VB1-4 Monitoring Well VB1-4D Monitoring Well VB1-5 Monitoring Well VB1-5D Monitoring Well A-3

TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2014 Station Code Sample Description VB1-6 Monitoring Well VB1-6D Monitoring Well VB1-7 Monitoring Well VB1-7D Monitoring Well VB1-8 Monitoring Well VB1-8D Monitoring Well VB1-9 Monitoring Well VB1-9D Monitoring Well VB2-10 Monitoring Well VB2-10D Monitoring Well VB2-11 Monitoring Well VB2-11D Monitoring Well VB2-12 Monitoring Well VB2-12D Monitoring Well VB2-13 Monitoring Well VB2-13D Monitoring Well VB2-14 Monitoring Well VB2-14D Monitoring Well VB2-15D Monitoring Well VB2-16 Monitoring Well VB2-16D Monitoring Well VB2-17 Monitoring Well VB2-17D Monitoring Well VB2-2D Monitoring Well VB2-5D Monitoring Well VB2-6D Monitoring Well VB2-7D Monitoring Well VB2-9D Monitoring Well VB3-10D Monitoring Well VB3-2 Monitoring Well VB3-4D Monitoring Well VB3-7D Monitoring Well VB3-9D Monitoring Well VB4-1 Monitoring Well VB4-5D Monitoring Well VB4-6D Monitoring Well VB5-2 Monitoring Well VB6-1 Monitoring Well VB7-1 Monitoring Well VB8-2R Monitoring Well VB9-1 Monitoring Well A-4

Figure A-1 Sampling Locations near the Site Boundary of Braidwood Station, 2014 A-5

Figure A-2 Sampling Locations near the Site Boundary of Braidwood Station, 2014 A-6

Figure A-3 Distant Sampling Locations of the Braidwood Station, 2014 A-7

Intentionally left blank APPENDIX B DATA TABLES

Intentionally left blank TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

BL-03 03/21/14 < 174 BL-03 06/13/14 < 181 BL-03 07/22/14 < 192 BL-03 12/03/14 < 187 BL-11 04/22/14 < 166 BL-11 06/09/14 < 182 BL-11 07/23/14 < 185 BL-11 11/20/14 < 154 F-1D 03/12/14 < 174 F-1D 06/19/14 < 185 F-1D 09/23/14 < 192 F-1D 12/10/14 < 153 F-3DR 03/12/14 < 175 F-3DR 06/20/14 < 187 F-3DR 09/24/14 < 190 F-3DR 12/10/14 < 152 F-4D 03/12/14 < 175 F-4D 06/19/14 < 187 F-4D 09/23/14 < 184 F-4D 12/08/14 < 152 F-5D 03/12/14 < 174 F-5D 06/19/14 < 184 F-5D 09/22/14 < 191 F-5D 12/08/14 < 152 F-6D 03/12/14 < 172 F-6D 06/19/14 < 197 F-6D 09/24/14 < 188 F-6D 12/08/14 < 153 F-8D 03/12/14 < 171 F-8D 06/20/14 < 187 F-8D 09/24/14 < 187 F-8D 12/10/14 164 +/- 101 F-9D 03/14/14 < 185 F-9D 06/20/14 < 185 F-9D 09/24/14 < 187 F-9D 12/10/14 < 152 MW-102R 03/18/14 < 178 MW-102R 06/13/14 < 180 MW-102R 07/22/14 < 193 MW-102R 12/03/14 < 190 MW-103 03/18/14 < 177 MW-103 06/03/14 < 191 < 4.9 < 1.0 < 0.4 4.0 +/- 1.4 < 0.9 2.5 +/- 1.4 MW-103 07/23/14 < 195 MW-103 11/19/14 < 154 MW-109D 03/20/14 < 165 MW-109D 06/06/14 < 185 < 6.1 < 0.5 < 1.4 < 0.8 1.8 +/- 1.1 < 1.5 MW-109D 07/25/14 < 191 MW-109D 11/07/14 < 192 MW-11 04/17/14 279 +/- 124 MW-11 05/18/14 368 +/- 140 < 7.6 < 0.8 < 0.7 < 0.9 2.1 +/- 0.9 < 2.0 MW-11 09/11/14 < 190 MW-11 11/10/14 211 +/- 129 MW-111DR 03/20/14 < 169 MW-111DR 06/24/14 < 195 < 7.0 < 0.9 < 0.5 < 0.9 < 1.0 < 2.0 B-1

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

MW-111DR 07/25/14 < 195 MW-111DR 11/07/14 < 194 MW-112D 03/21/14 < 161 MW-112D 06/13/14 < 182 < 6.3 < 0.6 < 1.7 < 0.8 2.3 +/- 1.2 < 1.5 MW-112D 07/25/14 < 195 MW-112D 11/07/14 < 192 MW-113 03/18/14 < 177 MW-113 06/13/14 < 183 < 5.2 < 0.6 < 1.4 < 0.8 < 1.5 < 1.5 MW-113 07/23/14 < 194 MW-113 11/19/14 < 149 MW-130D 04/22/14 < 171 MW-130D 06/06/14 < 175 < 5.8 < 0.5 < 1.8 < 0.8 7.1 +/- 1.5 < 1.5 MW-130D 07/25/14 < 191 MW-130D 11/07/14 < 195 MW-131D 03/20/14 < 162 MW-131D 06/12/14 < 185 < 5.3 < 0.6 < 1.6 < 0.8 4.2 +/- 1.3 < 1.5 MW-131D 07/25/14 < 195 MW-131D 11/07/14 < 191 MW-134D 04/22/14 < 168 MW-134D 06/03/14 < 190 < 6.2 < 0.5 < 0.6 < 0.9 2.6 +/- 0.8 < 2.0 MW-134D 07/23/14 < 190 MW-134D 11/19/14 < 179 MW-135D 03/14/14 < 182 < 4.5 < 0.6 < 2.6 < 1.2 < 2.4 < 1.6 MW-135D 06/19/14 < 188 < 3.6 < 0.6 < 0.5 < 0.4 < 1.4 < 1.6 MW-135D 09/23/14 < 190 < 5.1 < 0.8 < 0.4 < 0.4 < 1.5 < 1.7 MW-135D 12/09/14 < 152 < 2.3 < 0.6 < 2.0 < 1.1 < 2.5 < 1.5 MW-136D 03/13/14 < 186 < 2.9 < 0.5 < 2.5 < 0.7 < 2.7 < 1.5 MW-136D 06/19/14 < 184 < 3.5 < 0.8 < 1.2 < 1.0 1.0 +/- 0.5 < 2.4 MW-136D 09/23/14 < 192 < 4.5 < 0.7 < 1.1 < 0.4 4.3 +/- 1.2 < 1.7 MW-136D 12/09/14 < 155 < 3.4 < 0.8 < 1.7 < 1.1 1.7 +/- 0.9 < 1.5 MW-137D 03/13/14 < 181 < 3.2 < 0.4 < 0.7 < 0.7 1.7 +/- 0.8 < 1.5 MW-137D 06/19/14 < 185 < 3.6 < 0.9 < 1.9 < 0.4 2.0 +/- 0.9 < 1.6 MW-137D 09/23/14 < 183 < 6.1 < 0.8 < 1.1 < 0.4 2.4 +/- 0.9 < 1.7 MW-137D 12/09/14 < 153 < 3.8 < 0.7 < 0.8 < 1.1 1.6 +/- 0.9 < 1.5 MW-138D 03/14/14 < 186 < 3.3 < 0.6 < 1.1 < 1.2 < 2.8 < 1.6 MW-138D 06/19/14 < 183 < 5.3 < 0.7 < 2.6 < 0.4 3.5 +/- 1.1 < 1.6 MW-138D 09/23/14 < 190 < 5.2 < 0.6 < 0.9 < 0.4 4.6 +/- 1.5 < 1.7 MW-138D 12/09/14 < 154 < 4.3 < 0.9 < 2.5 < 3.8 < 3.1 < 2.8 MW-139D 03/13/14 < 186 < 3.1 < 0.6 < 0.8 < 0.7 16.8 +/- 1.4 < 1.5 MW-139D 06/20/14 < 186 < 4.9 < 0.7 < 0.8 < 0.4 17.9 +/- 1.5 < 1.6 MW-139D 09/23/14 < 190 < 4.6 < 0.6 < 1.2 < 0.4 23.7 +/- 2.3 < 1.7 MW-139D 12/09/14 < 153 < 3.4 < 0.7 < 0.8 < 1.1 23.4 +/- 1.5 < 1.5 MW-141D 04/23/14 434 +/- 132 MW-141D 05/22/14 351 +/- 139 < 4.5 < 0.9 < 4.2 < 2.2 40.0 +/- 5.5 < 4.6 MW-141D 09/16/14 607 +/- 151 MW-141D 11/19/14 409 +/- 127 MW-142D 04/02/14 1290 +/- 182 MW-142D 05/10/14 1180 +/- 180 < 8.9 < 0.7 < 5.3 < 2.2 27.1 +/- 5.7 < 4.6 MW-142D 09/16/14 933 +/- 170 MW-142D 12/20/14 1120 +/- 178 MW-143D 04/23/14 347 +/- 123 MW-143D 05/22/14 421 +/- 141 < 9.0 < 1.0 < 1.0 < 0.9 4.7 +/- 1.1 < 2.0 MW-143D 09/12/14 311 +/- 137 MW-143D 11/14/14 < 192 B-2

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

MW-144D 03/17/14 3390 +/- 383 MW-144D 04/23/14 2580 +/- 303 MW-144D 05/30/14 3390 +/- 389 < 8.1 < 0.7 < 0.7 < 0.9 4.6 +/- 0.9 < 2.0 MW-144D 09/16/14 2990 +/- 350 MW-144D 11/10/14 1580 +/- 219 MW-145D 03/14/14 217 +/- 124 < 3.8 < 0.8 < 1.1 < 1.2 < 1.8 < 1.6 MW-145D 06/20/14 < 185 < 3.4 < 1.0 < 0.5 < 0.5 < 1.1 < 1.7 MW-145D 09/22/14 < 182 < 5.4 < 0.7 < 0.3 < 0.4 < 1.1 < 1.7 MW-145D 12/10/14 < 154 < 2.7 < 0.6 < 0.6 < 1.1 < 1.1 < 1.5 MW-154 06/12/14 193 +/- 127 < 7.8 < 0.9 < 0.6 < 0.3 1.3 +/- 0.6 < 1.6 MW-154 09/23/14 277 +/- 109 < 7.1 < 0.6 < 0.4 < 1.1 1.9 +/- 0.6 < 1.5 MW-154 12/05/14 342 +/- 135 < 0.9 < 0.3 1.9 +/- 0.6 < 1.7 MW-155 06/12/14 < 185 < 5.7 < 0.7 < 1.0 < 0.3 2.4 +/- 0.8 < 1.6 MW-155 09/23/14 191 +/- 104 < 9.9 < 0.6 < 1.1 < 1.1 5.2 +/- 1.2 < 1.5 MW-155 12/05/14 < 186 < 1.1 < 0.3 2.6 +/- 0.7 < 1.7 MW-158D 03/13/14 < 180 < 3.5 < 0.7 < 2.2 < 0.7 28.7 +/- 3.1 < 1.5 MW-158D 06/20/14 < 186 < 3.4 < 0.8 < 0.7 < 0.4 34.3 +/- 1.8 < 1.6 MW-158D 09/23/14 < 194 < 5.4 < 0.9 < 1.1 < 0.4 21.2 +/- 1.5 < 1.7 MW-158D 12/09/14 < 151 < 3.6 < 0.6 < 0.8 < 1.8 32.4 +/- 1.7 < 1.8 MW-159D 06/09/14 < 191 < 3.6 < 0.8 < 0.9 < 0.9 5.6 +/- 1.2 < 1.4 MW-159D 09/24/14 229 +/- 109 < 6.3 < 0.5 < 0.6 < 1.1 2.5 +/- 0.8 < 1.5 MW-159D 12/04/14 < 189 < 6.1 < 3.7 3.7 +/- 1.4 < 2.7 MW-162D 03/12/14 800 +/- 149 MW-162D 04/23/14 932 +/- 157 MW-162D 05/22/14 929 +/- 168 < 9.5 < 0.7 < 0.8 < 0.9 4.1 +/- 1.0 < 2.0 MW-162D 09/11/14 858 +/- 167 MW-162D 11/10/14 554 +/- 150 MW-2 04/17/14 349 +/- 124 MW-2 05/10/14 325 +/- 139 < 9.3 < 0.8 < 0.7 < 0.9 7.4 +/- 1.0 < 2.0 MW-2 09/16/14 < 192 MW-2 11/11/14 200 +/- 127 MW-4 04/17/14 497 +/- 136 MW-4 05/10/14 535 +/- 147 < 7.2 < 0.6 < 2.5 < 0.9 4.0 +/- 1.4 < 2.0 MW-4 09/12/14 474 +/- 143 MW-4 09/24/14 481 +/- 120 MW-4 11/14/14 585 +/- 151 MW-5 03/25/14 722 +/- 155 MW-5 04/24/14 687 +/- 146 MW-5 05/22/14 389 +/- 142 < 8.2 < 0.9 0.9 +/- 0.5 < 0.9 1.1 +/- 0.7 < 2.0 MW-5 09/16/14 522 +/- 148 MW-5 11/10/14 268 +/- 134 MW-6 03/17/14 1560 +/- 207 MW-6 04/17/14 1060 +/- 172 MW-6 05/22/14 927 +/- 169 < 4.9 < 0.9 < 5.7 < 2.2 11.6 +/- 5.2 < 4.6 MW-6 09/16/14 596 +/- 153 MW-6 12/20/14 417 +/- 142 MW-7 04/17/14 473 +/- 125 MW-7 06/09/14 256 +/- 129 < 3.5 < 0.8 < 0.6 2.8 +/- 1.3 2.2 +/- 0.7 7.2 +/- 1.6 MW-7 09/11/14 239 +/- 131 MW-7 11/20/14 268 +/- 120 MW-BW-201S 04/24/14 529 +/- 135 MW-BW-201S 05/30/14 574 +/- 152 < 9.7 < 0.7 < 1.4 < 0.9 11.1 +/- 1.4 < 2.0 MW-BW-201S 09/17/14 287 +/- 136 MW-BW-201S 11/11/14 359 +/- 138 B-3

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

MW-BW-202S 04/23/14 316 +/- 124 MW-BW-202S 05/30/14 < 192 < 4.2 < 0.9 < 2.4 < 0.9 10.6 +/- 1.6 < 2.0 MW-BW-202S 09/11/14 234 +/- 134 MW-BW-202S 11/14/14 243 +/- 132 MW-BW-203S 04/24/14 245 +/- 116 MW-BW-203S 05/30/14 246 +/- 130 < 9.0 < 0.9 < 0.6 < 0.9 6.3 +/- 1.0 < 2.0 MW-BW-203S 09/11/14 < 193 MW-BW-203S 11/14/14 < 190 MW-BW-207I 04/24/14 526 +/- 135 MW-BW-207I 05/30/14 501 +/- 149 < 5.3 < 0.8 < 4.7 < 2.2 15.1 +/- 5.5 < 4.6 MW-BW-207I 09/16/14 716 +/- 159 MW-BW-207I 12/20/14 889 +/- 165 OWM31P 04/24/14 < 171 OWM31P 06/09/14 < 188 < 9.3 < 1.0 21.3 +/- 3.0 < 0.5 49.3 +/- 2.4 < 1.6 OWM31P 09/17/14 < 183 OWM31P 11/11/14 < 193 P-2D 03/14/14 < 182 P-2D 06/19/14 < 186 P-2D 09/23/14 < 192 P-2D 12/09/14 < 156 PW-006 01/31/14 < 177 PW-006 04/09/14 < 184 PW-006 07/22/14 < 188 PW-006 10/13/14 < 162 PW-006A 04/09/14 < 181 PW-006A 07/22/14 < 189 PW-006A 10/13/14 < 160 PW-006P 01/31/14 < 178 PW-006P 04/09/14 < 182 PW-006P 07/22/14 < 190 PW-006P 10/13/14 < 163 PW-011 01/31/14 < 174 PW-011 04/09/14 < 184 PW-011 07/22/14 < 189 PW-011 10/13/14 < 161 PW-015 04/09/14 < 184 PW-015 07/22/14 < 190 PW-015 10/13/14 < 159 PW-016 04/09/14 < 181 PW-016 07/22/14 < 188 PW-016 10/13/14 < 160 PW-13 01/31/14 < 173 PW-13 04/09/14 < 181 PW-13 07/22/14 < 191 PW-13 10/13/14 < 158 RW-10 06/13/14 < 183 < 5.1 < 0.7 < 1.4 < 0.3 3.1 +/- 1.1 < 1.6 RW-10 07/22/14 < 195 RW-10 12/03/14 < 191 RW-5 06/06/14 < 183 < 5.3 < 0.6 < 1.1 < 0.8 < 1.4 < 1.5 RW-5 07/25/14 < 195 RW-5 12/05/14 < 192 RW-6 06/06/14 < 182 < 4.8 < 0.5 < 1.5 < 0.3 3.1 +/- 1.3 < 1.6 RW-6 07/29/14 Original 4020 +/- 451 RW-6 07/29/14 Reanalysis 3350 +/- 378 B-4

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

RW-6 07/29/14 Recount 4020 +/- 453 RW-6 12/20/14 3220 +/- 372 RW-7 06/06/14 < 183 < 6.1 < 0.7 < 1.3 < 0.3 3.0 +/- 1.1 < 1.6 RW-7 07/25/14 < 194 RW-7 12/03/14 Original 392 +/- 141 RW-7 12/03/14 Reanalysis 286 +/- 133 RW-7 12/03/14 Recount 236 +/- 109 RW-9 07/22/14 < 152 RW-9 12/20/14 < 187 SC-1D 01/31/14 < 174 SC-2D 01/31/14 < 176 VB-10-1R 03/12/14 < 171 VB-10-1R 06/18/14 < 193 VB-10-1R 09/22/14 < 184 VB-10-1R 12/08/14 < 148 VB1-1 03/21/14 < 164 VB1-1 06/12/14 < 182 < 5.5 < 0.5 < 1.5 < 0.8 7.9 +/- 1.4 < 1.5 VB1-1 07/29/14 < 194 VB1-1 11/07/14 < 191 VB-11-1 03/12/14 < 180 VB-11-1 06/19/14 < 190 VB-11-1 09/23/14 < 186 VB-11-1 12/09/14 < 154 VB3-2 03/18/14 < 176 VB3-2 06/12/14 < 183 VB3-2 07/23/14 < 192 VB3-2 11/19/14 < 151 VB-4-1 03/12/14 < 171 VB-4-1 06/19/14 < 200 VB-4-1 09/22/14 < 179 VB-4-1 12/08/14 < 152 VB-5-2 03/14/14 < 183 VB-5-2 06/19/14 < 190 VB-5-2 09/22/14 < 185 VB-5-2 12/09/14 < 151 VB-6-1 03/13/14 < 186 VB-6-1 06/18/14 < 191 VB-6-1 09/22/14 < 182 VB-6-1 12/08/14 < 151 VB-7-1 03/13/14 < 184 VB-7-1 06/18/14 < 192 VB-7-1 09/22/14 < 185 VB-7-1 12/08/14 < 155 VB-8-2R 03/13/14 < 181 VB-8-2R 06/18/14 < 188 VB-8-2R 09/22/14 < 183 VB-8-2R 12/08/14 < 151 VB-9-1 03/12/14 < 172 VB-9-1 06/18/14 < 197 VB-9-1 09/22/14 < 185 VB-9-1 12/08/14 < 153 B-5

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

B-6

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 I-131 Cs-134 Cs-137 Ba-140 La-140 DATE MW-103 06/03/14 < 14 < 22 < 1 < 1 < 4 < 1 < 2 < 1 < 2 < 128 < 1 < 1 < 69 < 24 MW-109D 06/06/14 < 22 < 24 < 1 < 2 < 5 < 1 < 2 < 2 < 3 < 670 < 1 < 1 < 202 < 63 MW-11 05/18/14 < 18 < 24 < 1 < 2 < 5 < 1 < 2 < 2 < 3 < 510 < 1 < 1 < 171 < 49 MW-111DR 06/24/14 < 14 < 9 < 1 < 1 < 3 < 1 < 2 < 1 < 3 < 39 < 1 < 1 < 32 < 10 MW-112D 06/13/14 < 19 < 9 < 1 < 2 < 5 < 1 < 3 < 2 < 4 < 350 < 1 < 1 < 144 < 50 MW-113 06/13/14 < 14 < 21 < 1 < 1 < 4 < 1 < 1 < 1 < 2 < 248 < 1 < 1 < 95 < 35 MW-130D 06/06/14 < 20 < 7 < 1 < 2 < 5 < 1 < 2 < 2 < 3 < 604 < 1 < 1 < 171 < 55 MW-131D 06/12/14 < 16 64 +/- 36 < 1 < 1 < 4 < 1 < 2 < 2 < 3 < 344 < 1 < 1 < 129 < 46 MW-134D 06/03/14 < 10 < 13 < 1 < 1 < 2 < 1 < 1 < 1 < 2 < 113 < 0 < 1 < 49 < 15 MW-135D 03/14/14 < 58 < 62 < 7 < 6 < 14 < 8 < 13 < 7 < 11 < 9 < 7 < 6 < 31 < 8 MW-135D 06/19/14 < 26 < 40 < 2 < 3 < 6 < 3 < 5 < 3 < 5 < 7 < 2 < 2 < 16 < 5 MW-135D 09/23/14 < 35 < 38 < 3 < 3 < 8 < 3 < 7 < 4 < 7 < 13 < 3 < 4 < 26 < 7 MW-135D 12/09/14 < 32 < 24 < 3 < 3 < 7 < 3 < 6 < 3 < 6 < 11 < 3 < 3 < 24 < 7 B-7 MW-136D 03/13/14 < 62 < 181 < 6 < 5 < 12 < 8 < 14 < 6 < 13 < 11 < 6 < 7 < 28 < 12 MW-136D 06/19/14 < 28 < 60 < 3 < 3 < 7 < 3 < 6 < 3 < 5 < 7 < 3 < 3 < 18 < 5 MW-136D 09/23/14 < 42 < 85 < 4 < 5 < 11 < 4 < 7 < 5 < 8 < 14 < 4 < 4 < 29 < 9 MW-136D 12/09/14 < 45 < 40 < 5 < 5 < 11 < 5 < 11 < 5 < 9 < 14 < 4 < 5 < 33 < 11 MW-137D 03/13/14 < 55 < 62 < 6 < 7 < 14 < 9 < 15 < 8 < 13 < 13 < 7 < 6 < 26 < 9 MW-137D 06/19/14 < 37 < 85 < 4 < 4 < 7 < 4 < 8 < 4 < 7 < 11 < 4 < 4 < 23 < 9 MW-137D 09/23/14 < 36 < 75 < 4 < 4 < 9 < 4 < 8 < 4 < 8 < 12 < 4 < 4 < 28 < 9 MW-137D 12/09/14 < 34 < 70 < 3 < 4 < 7 < 4 < 7 < 4 < 6 < 10 < 3 < 3 < 25 < 7 MW-138D 03/14/14 < 59 < 68 < 6 < 7 < 13 < 7 < 12 < 7 < 12 < 12 < 6 < 8 < 28 < 9 MW-138D 06/19/14 < 35 < 64 < 3 < 4 < 8 < 4 < 6 < 4 < 6 < 10 < 3 < 4 < 24 < 6 MW-138D 09/23/14 < 43 < 84 < 4 < 5 < 10 < 4 < 10 < 5 < 9 < 15 < 5 < 5 < 29 < 11 MW-138D 12/09/14 < 41 < 67 < 4 < 4 < 9 < 5 < 8 < 5 < 7 < 11 < 4 < 4 < 28 < 10 MW-139D 03/13/14 < 65 < 50 < 6 < 6 < 10 < 9 < 13 < 5 < 14 < 11 < 6 < 7 < 24 < 12 MW-139D 06/20/14 < 41 185 +/- 60 < 4 < 4 < 9 < 4 < 8 < 5 < 8 < 11 < 4 < 4 < 27 < 8 MW-139D 09/23/14 < 44 < 41 < 4 < 4 < 8 < 4 < 8 < 5 < 9 < 14 < 4 < 5 < 33 < 8 MW-139D 12/09/14 < 38 < 77 < 4 < 4 < 9 < 4 < 7 < 5 < 8 < 12 < 4 < 4 < 27 < 10 MW-141D 05/22/14 < 15 < 9 < 1 < 1 < 4 < 1 < 2 < 1 < 3 < 332 < 1 < 1 < 105 < 37 MW-142D 05/10/14 < 21 < 6 < 1 < 2 < 5 < 1 < 2 < 2 < 3 < 1250 < 1 < 1 < 251 < 77 MW-144D 05/30/14 < 38 < 49 < 2 < 3 < 11 < 2 < 5 < 3 < 7 < 598 < 2 < 2 < 238 < 77 MW-145D 03/14/14 < 61 < 168 < 6 < 7 < 10 < 7 < 14 < 7 < 12 < 10 < 7 < 6 < 27 < 12 MW-145D 06/20/14 < 38 < 44 < 5 < 5 < 11 < 4 < 8 < 5 < 9 < 10 < 4 < 5 < 24 < 8 BOLDED VALUES INDICATE LLD COULD NOT BE MET DUE TO AGE OF SAMPLE AT TIME OF RECEIPT AT LABORATORY

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 I-131 Cs-134 Cs-137 Ba-140 La-140 DATE MW-145D 09/22/14 < 32 < 28 < 4 < 3 < 8 < 3 < 7 < 4 < 6 < 13 < 3 < 4 < 26 < 10 MW-145D 12/10/14 < 37 < 71 < 4 < 4 < 9 < 4 < 9 < 4 < 7 < 12 < 4 < 4 < 26 < 9 MW-154 06/12/14 < 38 < 42 < 2 < 3 < 10 < 2 < 4 < 3 < 6 < 867 < 2 < 2 < 281 < 89 MW-154 09/23/14 < 51 < 53 < 3 < 4 < 13 < 2 < 5 < 5 < 8 < 2007 < 2 < 2 < 508 < 180 MW-154 12/05/14 < 29 < 65 < 3 < 3 < 6 < 3 < 6 < 3 < 6 < 10 < 3 < 3 < 21 < 7 MW-155 06/12/14 < 29 < 30 < 2 < 3 < 8 < 1 < 4 < 3 < 5 < 673 < 2 < 2 < 239 < 81 MW-155 09/23/14 < 39 < 15 < 2 < 4 < 11 < 2 < 4 < 4 < 6 < 1517 < 2 < 2 < 397 < 128 MW-155 12/05/14 < 30 < 65 < 3 < 3 < 8 < 3 < 7 < 3 < 6 < 9 < 3 < 3 < 20 < 8 MW-158D 03/13/14 < 63 < 55 < 9 < 9 < 14 < # < 16 < 7 < 13 < 11 < 7 < 8 < 39 < 10 MW-158D 06/20/14 < 38 < 37 < 4 < 5 < 9 < 5 < 10 < 5 < 8 < 10 < 4 < 5 < 27 < 8 MW-158D 12/09/14 < 42 < 33 < 4 < 4 < 10 < 4 < 9 < 4 < 7 < 13 < 4 < 5 < 28 < 8 MW-159D 06/09/14 < 8 < 5 < 0 < 1 < 2 < 0 < 1 < 1 < 1 < 70 < 0 < 1 < 40 < 11 MW-159D 09/24/14 < 55 < 24 < 3 < 5 < 17 < 3 < 6 < 5 < 10 < 1780 < 2 < 3 < 547 < 198 B-8 MW-159D 12/04/14 < 29 < 27 < 3 < 3 < 7 < 3 < 6 < 3 < 6 < 11 < 3 < 3 < 25 < 7 MW-162D 05/22/14 < 13 < 6 < 1 < 1 < 3 < 1 < 1 < 1 < 2 < 379 < 1 < 1 < 118 < 27 MW-2 05/10/14 < 15 < 6 < 1 < 1 < 4 < 1 < 2 < 2 < 2 < 863 < 1 < 1 < 208 < 46 MW-4 05/10/14 < 30 < 15 < 2 < 3 < 9 < 1 < 3 < 3 < 5 < 1491 < 1 < 1 < 347 < 139 MW-5 05/22/14 < 14 < 17 < 1 < 1 < 4 < 1 < 1 < 1 < 2 < 330 < 1 < 1 < 123 < 31 MW-6 05/22/14 < 20 < 8 < 1 < 2 < 6 < 1 < 2 < 2 < 3 < 458 < 1 < 1 < 150 < 46 MW-7 06/09/14 < 11 < 6 < 1 < 1 < 3 < 1 < 2 < 1 < 2 < 65 < 1 < 1 < 42 < 12 MW-BW-201S 05/30/14 < 16 < 9 < 1 < 2 < 5 < 1 < 2 < 2 < 3 < 231 < 1 < 1 < 107 < 32 MW-BW-202S 05/30/14 < 13 < 5 < 1 < 1 < 3 < 1 < 2 < 1 < 2 < 188 < 1 < 1 < 84 < 17 MW-BW-203S 05/30/14 < 16 < 7 < 1 < 1 < 3 < 1 < 2 < 2 < 2 < 240 < 1 < 1 < 101 < 28 MW-BW-207I 05/30/14 < 12 < 7 < 1 < 1 < 3 < 1 < 1 < 1 < 2 < 186 < 1 < 1 < 90 < 25 OWM31P 06/09/14 < 9 < 4 < 1 < 1 < 2 < 1 < 1 < 1 < 1 < 50 < 0 < 1 < 31 < 9 P-2D 03/14/14 < 54 < 51 < 5 < 5 < 11 < 6 < 11 < 8 < 9 < 9 < 6 < 7 < 28 < 9 P-2D 06/19/14 < 37 < 80 < 4 < 4 < 9 < 4 < 9 < 4 < 8 < 11 < 4 < 4 < 27 < 8 P-2D 09/23/14 < 35 < 75 < 3 < 4 < 7 < 4 < 6 < 4 < 6 < 12 < 3 < 4 < 27 < 8 P-2D 12/09/14 < 39 < 33 < 4 < 4 < 8 < 4 < 8 < 5 < 7 < 13 < 3 < 4 < 29 < 7 RW-10 06/13/14 < 34 < 15 < 2 < 3 < 8 < 2 < 4 < 3 < 6 < 690 < 2 < 2 < 259 < 82 RW-5 06/06/14 < 16 < 7 < 1 < 1 < 4 < 1 < 2 < 1 < 3 < 522 < 1 < 1 < 161 < 45 RW-6 06/06/14 < 45 < 40 < 2 < 4 < 12 < 2 < 5 < 5 < 8 < 1495 < 2 < 2 < 429 < 129 RW-7 06/06/14 < 33 < 26 < 2 < 3 < 10 < 2 < 4 < 4 < 6 < 1255 < 2 < 2 < 354 < 113 BOLDED VALUES INDICATE LLD COULD NOT BE MET DUE TO AGE OF SAMPLE AT TIME OF RECEIPT AT LABORATORY

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 I-131 Cs-134 Cs-137 Ba-140 La-140 DATE VB1-1 06/12/14 < 12 < 15 < 1 < 1 < 3 < 1 < 1 < 1 < 2 < 226 < 1 < 1 < 98 < 27 B-9 BOLDED VALUES INDICATE LLD COULD NOT BE MET DUE TO AGE OF SAMPLE AT TIME OF RECEIPT AT LABORATORY

TABLE B-I.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Am-241 Cm-242 Cm-243/244 Pu-238 Pu-239/240 U-234 U-235 U-238 Fe-55 Ni-63 DATE NONE FOR 2014 B-10

TABLE B-II.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

DITCH (DS-2) 04/16/14 < 170 DITCH (DS-2) 06/12/14 < 181 < 5.0 < 0.6 < 2.0 < 0.3 5.3 +/- 1.4 < 1.6 DITCH (DS-2) 07/29/14 < 152 DITCH (DS-2) 11/07/14 < 193 SG-BW-105 01/31/14 < 171 SG-BW-105 04/09/14 < 185 SG-BW-105 07/22/14 < 194 SG-BW-105 10/13/14 < 158 SW-102 POINT C 03/21/14 < 165 SW-102 POINT C 06/09/14 < 188 < 6.0 < 0.5 < 2.7 < 1.2 4.4 +/- 2.1 4.6 +/- 2.1 SW-102 POINT C 09/24/14 255 +/- 109 SW-102 POINT C 11/20/14 < 172 B-11

TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2014 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 I-131 Cs-134 Cs-137 Ba-140 La-140 DATE DITCH (DS-2) 06/12/14 < 33 < 29 < 2 < 3 < 9 < 2 < 4 < 3 < 6 < 766 < 2 < 2 < 267 < 86 SW-102 POINT C 06/09/14 < 40 < 41 < 2 < 4 < 12 < 2 < 5 < 4 < 7 < 1096 < 2 < 2 < 354 < 112 B-12 BOLDED VALUES INDICATE LLD COULD NOT BE MET DUE TO AGE OF SAMPLE AT TIME OF RECEIPT AT THE LABORATORY