Text

2013 Annual Radiological Environmental Operating Report
	ML14136A313
Person / Time
Site:	Braidwood
Issue date:	05/14/2014
From:	Kanavos M; Exelon Generation Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	BW140045
	Download: ML14136A313 (264)
	v • d • e

Exelon Generation Company, LLC Exelon Generation Braidwood Nuclear Power Station 35100 South Route 53, Suite 84 Braceville, IL 60407-9619 www.exeloncorp.com May 14, 2014 BW 140045 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555-0001 Braidwood Station, Units 1 and 2 Facility Operating License Nos. NPF-72 and NPF-77 NRC Docket Nos. STN 50-456 and STN 50-457

Subject:

2013 Annual Radiological Environmental Operating Report Attached is the 2013 Annual Radiological Environmental Operating Report for Braidwood Station. This report is being submitted in accordance with Technical Specification 5.6.2, "Annual Radiological Environmental Operating Report." This report contains information associated with the station's radiological environmental and meteorological monitoring programs. This information is consistent with the objectives described in the Offsite Dose Calculation Manual and 10 CFR 50, Appendix I, "Numerical Guides for Design Objectives and Limiting Conditions for Operation to Meet the Criterion 'As Low as is Reasonably Achievable' for Radioactive Material In Light-Water-Cooled Nuclear Power Reactor Effluents," Sections IV.B.2, and IV.B.3. Technical Specification 5.6.2 requires the Annual Radiological Environmental Operating Report to be submitted by May 15 of each year.

If you have any questions regarding this information, please contact Phillip J. Raush Regulatory Assurance Manager, at (815) 417-2800.

Respectfully, Mark E. Kanavos Site Vice President Braidwood Station cc: US NRC Regional Administrator, Region III US NRC Senior Resident Inspector - Braidwood Station NRR Project Manager - Braidwood Station Illinois Emergency Management Agency - Division of Nuclear Safety

bcc: (without attachments)

Site Vice President - Braidwood Station Director, Licensing and Regulatory Affairs Manager, Licensing - Braidwood, Byron and LaSalle County Stations Regulatory Assurance Manager - Braidwood Station Licensing Engineer - Braidwood Site Commitment Tracking Coordinator Corporate Commitment Tracking Coordinator Exelon Document Control Desk Licensing

Docket No: 50-456 50-457 BRAIDWOOD STATION UNITS I and 2 Annual Radiological Environmental Operating Report 1 January through 31 December 2013 Prepared By Teledyne Brown Engineering Environmental Services Exelon Generation.

Braidwood Station Braceville, IL 60407 May 2014

Intentionally left blank Table Of Contents I. Sum m ary and Conclusions .......................................................................................... 1 I1. Introduction ............................................................................................................. 3 A. Objectives of the REM P .................................................................................. 3 B. Im plem entation of the Objectives .................................................................... 3 I1l. Program Description ................................................................................................ 3 A. Sam ple Collection ........................................................................................... 3 B. Sam ple Analysis .............................................................................................. 6 C. Data Interpretation ......................................................................................... 6 D. Program Exceptions ....................................................................................... 7 E. Program Changes ......................................................................................... 10 j

IV. Results and Discussion ......................................................................................... 10 A. Aquatic Environm ent ..................................................................................... 10

1. Surface W ater ..................................................................................... 10

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

3. G round/well W ater .............................................................................. 12

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

5. Sedim ent ............................................................................................ 12 B. Atm ospheric Environm ent ........................................................................... 13

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

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

b. Airborne Iodine ...................................................................... 14 C. Terrestrial Environm ent ................................................................................ 14

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

2. Food Products .................................................................................... 14 D. Am bient Gam m a Radiation ........................................................................... 15 E. Land Use Survey .......................................................................................... 15 F. Errata Data .................................................................................................. 16 G. Summary of Results - Inter-laboratory Comparison Program .................... 17

Appendices Appendix A Radiological Environmental Monitoring Report Annual Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for Braidwood Station, 2013 Appendix B Location Designation, Distance & Direction, and Sample Collection &

Analytical Methods Tables Table B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2013 j

Table B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Braidwood Station, 2013 Fi-gures Figure B-1 Inner Ring OSLD Locations of the Braidwood Station, 2013 Figure B-2 Fixed Air Sampling and Outer Ring OSLD Locations of the Braidwood Station, 2013 Figure B-3 Ingestion and Waterborne Exposure Pathway Sample Locations of the Braidwood Station, 2013 Appendix C Data Tables and Figures - Primary Laboratory Tables Table C-1.1 Concentrations of Gross Beta in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-1.2 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-1.3 Concentrations of Nickel-63 in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-1.4 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-11.1 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Braidwood Station, 2013.

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Table C-I1.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-I1.3 Concentrations of 1-131 in Public Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-11.4 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-I11.1 Concentrations of Tritium in Ground/Well Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-I11.2 Concentrations of Gamma Emitters in Ground/Well Water Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-IV.1 Concentrations of Nickel-63 and Gamma Emitters in Fish Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-V.1 Concentrations of Nickel-63 and Gamma Emitters in Sediment Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-VI.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-VI.2 Monthly and Yearly Mean Values of Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-VI.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-VII.1 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-VIII.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-VIII.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-IX.1 Concentrations of Gamma Emitters in Vegetation Samples Collected in the Vicinity of Braidwood Station, 2013.

Table C-X.1 Quarterly OSLD Results for Braidwood Station, 2013.

Table C-X.2 Mean Quarterly OSLD Results for the Inner Ring, Outer Ring, Other, and Control Locations for Braidwood Station, 2013.

Table C-X.3 Summary of the Ambient Dosimetry Program for Braidwood Station, 2013.

Fi-gures Figure C-1 Surface Water - Gross Beta - Stations BD-1 0 and BD-25 (C) Collected in the Vicinity of Braidwood Station, 2000 - 2013.

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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 - 2013.

Figure C-3 Surface Water - Gross Beta - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2013.

Figure C-4 Surface Water - Tritium - Stations BD-10 and BD-25 (C) Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-5 Surface Water - Tritium - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2006 - 2013.

Figure C-6 Surface Water - Tritium - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2013.

Figure C-7 Public Water - Gross Beta - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-8 Public Water - Tritium - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-9 Ground/Well Water - Tritium - Stations BD-1 3 and BD-34 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-10 Ground/Well Water - Tritium - Stations BD-35 and BD-36 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-1i1 Ground/Well Water - Tritium - Station BD-37 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-12 Ground/Well Water - Tritium - Stations BD-50 and BD-51 Collected in the Vicinity of Braidwood Station, 2007 - 2013.

Figure C-13 Ground/Well Water - Tritium - Stations BD-53 and BD-54 Collected in the Vicinity of Braidwood Station, 2007 - 2013.

Figure C-14 Air Particulate - Gross Beta - Stations BD-03 (C) and BD-06 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-15 Air Particulate - Gross Beta - Stations BD-19 and BD-20 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-16 Air Particulate - Gross Beta - Station BD-21 Collected in the Vicinity of Braidwood Station, 2000 - 2013.

Figure C-17 Air Particulate - Gross Beta - Stations BD-02 and BD-04 Collected in the Vicinity of Braidwood Station, 2005 - 2013.

Figure C-18 Air Particulate - Gross Beta - Station BD-05 Collected in the Vicinity of Braidwood Station, 2005 - 2013.

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

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

Environmental, Inc., 2013 Appendix E Effluent Data Appendix F Meteorological Data Appendix G Errata Data Appendix H Annual Radiological Groundwater Protection Program Report (ARGPPR) v

1. Summary and Conclusions This report on the Radiological Environmental Monitoring Program (REMP) conducted for Exelon's Braidwood Station covers the period January 1, 2013 through December 31, 2013. During that time period 1,576 analyses were performed on 1,328 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. Occassionally, Ni-63 is observed in liquid release tank quarterly composites, therefore, beginning in the fall of 2013 the station has 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. Three sediment samples had Cs-1 37.

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 1-131 analyses were performed on weekly air samples. All results were less than the minimum detectable concentration for 1-131.

Cow milk samples were analyzed for concentrations of 1-131 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, 2013 through December 31, 2013.

A. Objective of the REMP The objectives of the REMP are to:

1. Provide data on measurable levels of radiation and radioactive materials in the site environs.

2. Evaluate the relationship between quantities of radioactive material released from the plant and resultant radiation doses to individuals from principal pathways of exposure.

B. Implementation of the Objectives The implementation of the objectives is accomplished by:

1. Identifying significant exposure pathways.

2. Establishing baseline radiological data of media within those pathways.

3. Continuously monitoring those media before and during Station operation to assess Station radiological effects (if any) on man and the environment.

Ill. Program Description A. Sample Collection Samples for the 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 2013.

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, channel catfish, 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 two locations (BD-17 and BD-18) from May through October and monthly from November through April. The control location was BD-18. 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 I, 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 Dosimetry were deployed and the use of Thermoluminescent 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).

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-1 12, BD-1 13a, BD-1 14, BD-1 15 and BD-1 16) 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 2013. The analytical procedures used by the laboratories are listed in Table B-2.

In order to achieve the stated objectives, the current program includes the following analyses:

1. Concentrations of beta emitters in public 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 1-131 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 postoridetermination.

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, 1-131, 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-1 34, Cs-1 37, Ba-1 40 and La-1 40 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 2013 the Braidwood Station REMP had a sample recovery rate in excess of 97.9%. 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 A/I BD-03 05/02/13 No apparent reason for low reading of 168.0 hours0 days 0 hours 0 weeks 0 months . Hours estimated by vendor.

OSLD BD-1 04-1 06/27/13 OSLD found on ground during quarterly exchange; cricket cage missing; collector placed new 3rd quarter OSLD.

A/I BD-03 07/11/13 No apparent reason for the low reading of 160.0 hours0 days 0 hours 0 weeks 0 months .

A/I BD-03 07/25/13 No apparent reason for the low reading of 132.9 hours1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months .

A/I BD-03 08/01/13 No apparent reason for the low reading of 132.9 hours1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months .

A/I BD-03 08/08/13 No apparent reason for the low reading of 140.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ; collector added extra timer.

A/I BD-03 09/19/13 Low reading of 89.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months due to new transformer installation; circuit breaker off at sampler. Collector reset breaker; sampler working properly.

11/27/13 No apparent reason for low reading A/I BD-03 of 118.1 hours1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months .

Table D-2 LISTING OF MISSED SAMPLES Sample Location Sample Collection Reason Type Code Date SW BD-55, BD-56 01/03/13 No sample; water frozen.

SW BD-55, BD-56 01/10/13 No sample; water frozen.

SW BD-55, BD-56 01/17/13 No sample; water frozen.

SW BD-38, BD-56 01/24/13 No sample; water frozen.

Table D-2 LISTING OF MISSED SAMPLES (continued)

Sample Location Collection Reason Type Code Date SW BD-56 01/31/13 No sample; water frozen.

SW BD-55, BD-56 02/07/13 No sample; water frozen.

SW BD-56 02/14/13 No sample; water frozen.

SW BD-56 02/21/13 No sample; water frozen.

SW BD-56 02/28/13 No sample; water frozen.

SW BD-56 03/07/13 No sample; water frozen.

OSLD BD-201-1, BD-201-2 06/27f13 OSLDs found missing during quarterly exchange; cricket cages also missing; collector placed new 3 quarter OSLD.

SW BD-38 07/04/13 Monthly composite sample spilled at lab. Original sample media insufficient to create new composite or support quarterly tritium analysis.

SW BD-56 11/27/13 No sample; water frozen.

SW BD-55. BD-56 12/12/13 No sample; water frozen.

SW BD-55, BD-56 12/19/13 No sample; water frozen.

SW BD-55, BD-56 12/26/13 No sample; water frozen.

OSLD BD-205-2 01/02/14 OSLD found missing during 4th quarter exchange; collector placed new 1st quarter OSLD.

OSLD BD-216-2 01/02/14 OSLD found missing during 4th quarter exchange; collector placed new 1st quarter OSLD.

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 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. Occassionally, Ni-63 is observed in liquid release tank quarterly composites, therefore, beginning in the fall of 2013 the station has requested that Ni-63 be evaluated in the downstream surface water, sediment, and fish analyses.

IV. Results and Discussion A. Aquatic Environment

1. Surface Water Samples were taken weekly and composited monthly at six locations (BD-10, BD-25, BD-38, BD-40, BD-55 and BD-56). Of these locations, only BD-10 could be affected by Braidwood Station's 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-1.1, Appendix C). Gross beta was detected in 66 of 69 samples. The values ranged from 2.2 to 11.7 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-1.2, Appendix C). Tritium activity was detected in three samples. The values ranged from 254 to 2,840 pCi/I (Figures C-4 through C-6, Appendix C).

Nickel-63 Beginning in the fall of 2013, monthly samples were analyzed for Nickel-63 activity (Table C-1.3, 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-1.4, Appendix C). No nuclides were detected and all required LLDs were met.

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

Gross Beta Samples from the location were analyzed for concentrations of gross beta (Tables C-11.1, Appendix C). Gross beta was detected in all 12 samples. The values ranged from 3.1 to 5.0 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-11.2, Appendix C). Tritium was detected in all 12 samples. The concentration ranged from 238 to 5,760 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 1-131 (Table C-11.3, 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-11.4, 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-111.1, 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-111.2, Appendix C). No nuclides were detected and all required LLDs were met.

4. Fish Fish samples comprised of largemouth bass, golden redhorse, channel catfish and common carp were collected at three locations (BD-25, BD-28, and BD-41) semiannually. Location BD-28 could be affected by Braidwood Station's 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 Station's 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-1 37 were found at locations BD-10 and BD-57. The concentration ranged from 109 to 157 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 I) ranged from 5.61 E-03 to 5.17E-02 pCi/m 3 with a mean of 1.95E-02 pCi/m 3 . The results from the far field (Group II) ranged from 5.74E-03 to 5.16E-02 pCi/m 3 with a mean of 1.96E-02 pCi/m 3 . The results from the Control location (Group Ill) ranged from 7.89E-03 to 5.19E-02 pCi/m 3 with a mean of 1.90E-02 pCi/m 3 . Comparison of the 2013 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 2013 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 1-131 (Table C-VII.1, Appendix C). All results were less than the minimum detectable concentration for 1-131.

C. Terrestrial Environment

1. Milk Samples were collected from two locations (BD-1 7 and BD-1 8). 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-1 31 Milk samples from both locations were analyzed for concentrations of 1-131 (Table C-VIII.1, Appendix C).

Iodine-1 31 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 Station's 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 OSLD locations were established around the site. Results of OSLD measurements are listed in Tables C-X.1 to C-X.3, Appendix C.

All OSLD measurements were below 30 mrem/quarter, with a range of 14.1 to 29.1 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 2013 around the Braidwood Station was performed by Environmental Inc. (Midwest Labs) for Exelon Nuclear to comply with section 12.5.2 of the Braidwood Station's 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 'A 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 8.7 (P) WNW 0.4 (Q) NW 0.4 (R) NNW 0.4 F. Errata Data

1. Teledyne Brown Engineering (TBE) provides data results [activity, uncertainty and minimum detectable concentration {MDC}]. We are required to calculate the MDC using a multiplier of 4.66.

4.66 It MDA = At 2.22 (v)(y) (a)(C)

Where:

At = counting time for sample (minutes) 13 = background rate of instrument blank (cpm) 2.22 = dpm/pCi or: 2.22 x 106 dpm/p.Ci v = volume or mass of sample analyzed y = chemical yield E = efficiency of the counter The formulas for calculating the activity, uncertainty and MDC are contained in the software of the counting equipment. For the gamma system, when the new detector number 08 was added to the system in January 2012, the default value of 3.29 was used to calculated the MDCs on detector 08. The activity and uncertainty were not affected. The multiplier has been changed from 3.29 to the required 4.66.

When the MDCs are recalculated using 4.66, the MDC values will increase by 41.6%. The greatest impact will be on the short-lived nuclides which have an LLD requirement, e.g. 1-131, Ba-1 40 and La-140. Which means there could be some missed LLDs which will be identified in the Errata Data Appendix table of the 2013 annual report. This is not a reportable issue for the NRC. There is also the possibility that naturally produced nuclides that were detected would become a non-detect, e.g Th-228, Th-230, etc.

2. Figure C-1 2 of the Appendix C Data Tables and Figures for the 2012 Annual Radiological Environmental Operating Report (AREOR) incorrectly displays the tritium data for groundwater wells BD-50 (Skole Well) and BD-51 (Fatlan Well). The data series selection for the 2012 tritium results of BD-50 and BD-51 did not include the actual value but the "less than symbol (<) preceding the value. This error has been identified and corrected for the 2013 AREOR and shown in the Errata Data Appendix Table.

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 DOE's Mixed Analyte Performance Evaluation Program (MAPEP) were evaluated against the following pre-set acceptance criteria:

1. Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of laboratory results and Analytics' known value. Since flag values are not assigned by Analytics, TBE-ES evaluates the reported ratios based on internal QC requirements, which are based on the DOE MAPEP criteria.

2. ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, NELAC, State Specific PT program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable. The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.

3. DOE Evaluation Criteria MAPEP's evaluation report provides an acceptance range with associated flag values.

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

For the TBE laboratory, 178 out of 185 analyses performed met the specified acceptance criteria. Seven analyses (Sr-89 and Sr-90 in milk, Co-57, Zn-65 and Sr-90 in soil, Cs-1 34 in air particulate and Sr-90 in vegetation [two low warning in a row]) did not meet the specified acceptance criteria or internal QA requirements for the following reason:

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

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

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

While MAPEP evaluated the results as failures, the gamma software listed the results as non identified nuclides. The two nuclides would never have been reported as detected nuclides to a client. MAPEP does not allow laboratories to put in qualifiers for the submitted data nor "less than" results. MAPEP evaluates results based on the relationship between the activity and the uncertainty. MAPEP spiked the soil sample with an extremely large concentration of Eu-1 52, which was identified by the gamma software as an interfering nuclide, resulting in forced activity results that were evaluated by MAPEP as detected Co-57 and Zn-65. No client samples were affected by these failures. NCR 13-14

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

6. Teledyne Brown Engineering's MAPEP September 2013 Cs-1 34 in air particulate activity of -0.570 Bq/sample was evaluated as a failed false positive test, based on MAPEP's evaluation of the result as a significant negative value at 3 standard deviations. A negative number would never have been reported as a detected nuclide to a client, therefore no client samples were affected by this failure.

NCR 13-14

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

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

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

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

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

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

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

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

Intentionally left blank APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT ANNUAL

SUMMARY

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

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 # NUMBEROF 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 69 4 5.9 8.2 9.9 BD-40 INDICATOR (PCI/LITER) (54/57) (12/12) (12/12) BRAIDWOOD STATION COOLING LAKE (2.2/11.7) (5.3/10.6) (7.9/11.7) ONSITE H-3 24 200 1288 <LLD 1806 BD-10 INDICATOR 0 (3/20) (2/4) KANKAKEE RIVER DOWNSTREAM (254/2840) (771/2840) 5.4 MILES NE OF SITE N 1-63 24 30 <LLD <LLD 0 GAMMA 69 MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD FE-59 30 <LLD <LLD CO-60 15 <LLD <LLD 0 ZN-65 30 <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, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 LOCATION OF FACILITY: BRACEVILLE, IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBEROF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBEROF 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 NB-95 15 <LLD <LLD 0 (PCI/LITER)

ZR-95 30 <LLD <LLD 0 1-131 15 <LLD <LLD 0 CS-134 15 <LLD <LLD 0 CS-137 18 <LLD <LLD 0 BA-140 60 <LLD <LLD 0 LA-140 15 <LLD <LLD 0 PUBLIC WATER GR-B 12 4 4.0 NA 4.0 BD-22 INDICATOR 0 (PCI/LITER) (12/12) (12/12) WILMINGTON (3.1/5.0) (3.1/5.0) 6.0 MILES NE OF SITE

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 H-3 12 200 1256 NA 1256 BD-22 INDICATOR 0 (PCI/LITER) (12/12) (12/12) WILMINGTON (238/5760) (238/5760) 6.0 MILES NE OF SITE 1-131 12 I <LLD NA 0 GAMMA 12 MN-54 15 <LLD NA 0 CO-58 15 <LLD NA 0 FE-59 30 <LLD NA 0 CO-60 15 <LLD NA 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, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 ZR-95 30 <LLD NA 0 (PCULITER)

CS- 134 15 <LLD NA 0 CS-137 18 <LLD NA 0 BA-140 60 <LLD NA 0 LA-140 15 <LLD NA 0 GROUND WATER H-3 32 200 <LLD NA 0 (PCI/LITER)

GAMMA 32 MN-54 15 <LLD NA 0 CO-58 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-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 FE-59 30 <LLD NA 0 (PCI/LITER)

CO-60 15 <LLD NA 0 ZN-65 30 <LLD NA 0 U..

NB-95 15 <LLD NA 0 ZR-95 30 <LLD NA 0 1-131 15 <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-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 BA-140 60 <LLD NA 0 (PCI/LITER)

LA-140 15 <LLD NA FISH NI-63 6 260 <LLD <LLD (PCI/KG WET)

GAMMA 12 MN-54 130 <LLD <LLD 0 CO-58 130 <LLD <LLD 0 FE-59 260 <LLD <LLD 0 CO-60 130 <LLD <LLD ZN-65 260 <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, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 4 NUMBEROF 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 NB-95 NA <LLD <LLD 0 (PCI/KG WET)

ZR-95 NA <LLD <LLD 0 1-131 NA <LLD <LLD 0 CS-134 130 <LLD <LLD 0 CS-137 150 <LLD <LLD 0 BA-140 NA <LLD <LLD 0 LA-140 NA <LLD <LLD 0 SEDIMENT NI-63 260 <LLD <LLD (PCI/KG DRY)

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 ,

NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 GAMMA 6 (PCI/KG DRY) MN-54 NA <LLD <LLD 0 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 CS-134 150 <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-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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-137 180 133 <LLD 134 BD- 10 INDICATOR 0 (PCI/KG DRY) (3/4) (1/2) KANKAKEE RIVER DOWNSTREAM (109/157) 5.4 MILES NE OF SITE BA- 140 NA <LLD <LLD 0 LA-140 NA <LLD <LLD 0 AIR PARTICULATE GR-B 416 10 20 19 20 BD-05 INDICATOR 0 (E-3 PCI/CU.METER) (362/364) (51/52) (52/52) GARDNER (6/52) (8/52) (9/52) 5.5 MILES SW 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-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50457 2013 LOCATION OF FACILITY: BRACEVILLE, IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBEROF 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 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 416 (E-3 PCI/CU.METER) 1-131 70 <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, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 LOCATION OF FACILITY: BRACEVILLE, IL REPORTING PERIOD: ANNUAL INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBEROF REQUIRED MEAN(M) MEAN(M) MEAN (M) STATION # NUMBEROF 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 1-131 40 <LLD <LLD 0 (PCI/LITER)

GAMMA 40 MN-54 NA <LLD <LLD CO-58 NA <LLD <LLD 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-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50456 & 50-457 2013 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 # NUMBEROF 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 CS-134 15 <LLD <LLD 0 (PCI/LITER)

CS-137 18 <LLD <LLD BA-140 60 <LLD <LLD LA- 140 15 <LLD <LLD VEGETATION GAMMA 10 (PCI/KG WET) 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-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BRAIDWOOD STATION, 2013 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBER: 50-456 & 50-457 2013 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 ZN-65 NA <LLD <LLD 0 (PCI/KG WET)

NB-95 NA <LLD <LLD 0 ZR-95 NA <LLD <LLD CS-134 60 <LLD <LLD CS-1 37 80 <LLD <LLD BA-140 NA <LLD <LLD 0 LA- 140 NA <LLD <LLD 0 DIRECT RADIATION OSLD-QUARTERLY 315 NA 19.3 19.6 24.7 BD-209-2 INDICATOR (MILLIREM/QTR.) (307/307) (8/8) (4/4)

(14.1/29.1) (17.1/22.0) (21.4/29.1) 4.8 MILES S

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)

Intentionally left blank 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, 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 Halpin's 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-I

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 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 mips 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-1 14-1 and -2 0.4 miles WNW BD-115-1 and -2 0.3 miles NW BD-1 16-1 0.4 miles NNW BD-1 16-2 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 B-2

TABLE B-i: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2013 Location Location Description Distance & Direction From Site

1. Envirc)nmental Dosimetry - OSLD (cont'd)

Control BD-03-1 and -2 13000 W. Road 6.2 miles ESE B-3

TABLE B-2: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Braidwood Station, 2013 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 grab various matrices samples.

Drinking Water Gamma Spectroscopy Monthly composite TBE, TBE-2007 Gamma emitting radioisotope analysis from weE~ly grab samples.

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

Drinking Water Iodine Weekly grab and TBE, TBE-2031 Radioactive Iodine in drinking water monthly composite from weekly grab 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, 2013 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 1-131 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 i 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 A120 3 :C Landauer Incorporated elements.

B-5

o ! ? Miles a TLD Locltoin Figure B-1 Inner Ring OSLD Locations of the Braidwood Station, 2013 B-6

4 I ~ ~ I Is.~l I 1 I Mfla

Air Szrim Locatins Figure B-2 Fixed Air Sampling and Outer Ring OSLD Locations of the Braidwood Station, 2013 B-7

U~

OFFSMT DOSE CALCUL.A'i10N MANUAL BRAI-&DWOCOD STA7flQI o 1 2 3 4 FIGUJRE 11-3 miles I14O~nl ON AND WATERBOWEiE3U~

PATWWAY SAMPLEfLOCATIONS 9 W~tr 40 SedjMe

i0A X Milk Figure B-3 Ingestion and Waterborne Exposure Pathway Sample Locations of the Braidwood Station, 2013 B-8

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY

Intentionally left blank Table C-1.1 CONCENTRATIONS OF GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 PERIOD 01/03/13 - 01/31/13 6.3 +/- 1.8 10.6 +/- 2.1 8.2 +/- 2.2 (1) 10.7 +/- 2.2 4.3 +/- 1.5 (1) (1) 02/14/13 - 02/28/13 5.0 +/- 1.7 9.4 +/- 2.1 8.6 +/- 2.2 11.5 +/- 2.2 4.8 +/- 1.4 (1) (1) 03/14/13 - 03/28/13 2.9 +/- 1.7 9.3 +/- 2.2 5.9 +/- 2.2 10.6 +/- 2.2 2.6 +/- 1.4 < 2.7 (1) 04/04/13 - 04/25/13 4.4 +/- 1.7 8.2 +/- 2.0 5.6 +/- 1.9 9.5 +/- 2.1 4.2 +/- 1.5 4.3 +/- 1.8 05/02/13 - 05/30/13 5.4 +/- 1.7 7.3 +/- 1.8 6.6 +/- 2.1 8.4 +/- 2.0 3.4 +/- 1.5 3.2 +/- 1.8 06/06/13 - 06/27/13 6.0 +/- 1.5 7.8 +/- 1.8 4.5 +/- 1.8 7.9 + 1.9 6.2 +/- 1.5 < 2.4 07/04/13 - 07/25/13 4.1 +/- 2.3 8.7 +/- 2.7 (1) 9.8 +/- 2.8 < 2.8 4.7 +/- 2.6 08/01/13 - 08/29/13 3.6 +/- 1.6 8.7 +/- 1.8 6.9 +/- 2.0 10.1 + 1.9 4.9 +/- 1.5 3.2 +/- 1.6 09/05/13 - 09/26/13 3.9 +/- 1.4 8.3 +/- 1.6 6.0 +/- 1.8 8.5 +/- 1.7 3.2 +/- 1.1 2.2 +/- 1.3 10/03/13 - 10/31/13 4.3 +/- 1.6 5.8 +/- 1.7 7.0 +/- 2.0 9.3 +/- 2.1 3.1 +/- 1.2 5.1 +/- 1.5 11/07/13 - 11/27/13 3.9 +/- 1.3 5.3 +/- 1.5 4.5 +/- 1.7 11.7 +/- 1.9 3.4 +/- 1.1 8.6 +/- 1.7 (1) 12/05/13 - 12/05/13 5.1 +/- 1.4 9.1 +/- 1.8 2.2 +/- 0.9 10.3 +/- 2.0 2.3 +/- 1.0 (1) 3.8 +/- 1.4 (1)

MEAN 4.6 +/- 2.0 8.2 +/- 3.0 6.0 +/- 3.6 9.9 +/- 2.4 3.9 +/- 2.3 4.4 +/- 3.9 Table C-1.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 PERIOD 01/24/13 - 03/28/13 < 181 < 192 < 193 (1) < 198 < 194 (1) < 198 04/04/13 - 06/27/13 < 197 < 197 < 197 < 197 < 198 < 197 07/04/13 - 09/26/13 2840 +/- 330 < 178 (1) 254 +/- 129 < 184 < 181 < 162 10/03/13 - 12/05/13 771 +/- 153 < 166 < 163 < 166 < 190 (1) < 189 (1)

MEAN 1806 +/- 2926 Table C-I.3 (2) CONCENTRATIONS OF NICKEL-63 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 PERIOD 09/05/13 - 09/26/13 < 13.8 < 13.8 < 14.0 < 14.0 < 13.3 < 13.2 10/03113 - 10/31/13 < 4.3 < 4.3 < 4.7 < 4.8 < 4.5 < 4.7 11/07/13 - 11/27/13 < 4.2 <4.1 < 4.2 < 5.3 < 5.1 < 4.0 12/05/13 - 12/05/13 < 13.8 < 13.8 < 12.5 < 14.3 < 13.8 < 14.4 MEAN THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) SEE PROGRAM CHANGES SECTION FOR EXPLANTION C-I

Table C-1.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-10 01/03/13 - 01/31/ '13 <4 <3 < 1u < 3 <7 <4 <7 <11 <4 <4 < Z3 <8 02/07/13 - 02/28/'13 <2 <2 <5 <2 <4 <2 <4 <11 <2 <2 <19 <6 03/07/13 - 03/28/'13 <1 <2 <3 <1 <3 <2 <3 <8 <1 <2 <15 <3 04/04/13 - 04/25/ '13 <2 <2 <4 <2 <4 <2 <3 <9 <2 <2

17 <6 05/02/13 - 05/30/ '13 <1 <1 <3 <1 <3 <2 <3 <8 <1 <1 < 14 <4 06/06/13 - 06/27/ '13 <1 <2 <3 <1 <2 <1 <2 < 13 <1 <1 <15 <6 07/04/13 - 07/25/ 13 <2 <2 <5 <2 <4 <2 <4 <10 <2 <2 < 17 <6 08/01/13 - 08/29/ '13 <1 < 2 <4 <1 <3 <2 <3 <9 <1 <1 < 15 <5 09/05/13 - 09/26/ '13 <1 <1 <3 <1 <2 <1 <3 < 12 <1 <1 < 18 <5 10/03/13 - 10/31/ '13 <2 <2 <4 <2 <3 <2 <3 <10 <1 <2 <16 <6 11/07/13 - 11/27/ 13 <2 <2 <5 <2 <4 <2 <4 < 13 <2 <2 < 21 <7 12/05/13 - 12/26/ 13 <2 <2 <5 <2 <4 <2 <4 < 10 <2 <2 < 18 <6 MEAN BD-25 01/03/13 - 01/31/13 <4 <5 <9 <5 <9 <4 <9 <13 <4 <5 < 26 <9 02/07/13 - 02/28/13 <2 <2 <5 <2 <4 <2 <4 < 12 <2 <2 < 20 <7 03/07/13 - 03/28/13 <2 <2 <4 <2 <4 <2 <3 <9 <2 <2 < 16 <5 04/04/13 - 04/25/13 <2 <2 <5 <2 <4 <2 <4 < 10 <2 <2 < 18 <5 05/02/13 - 05/30/13 <2 <2 <5 <2 <4 <2 <4 < 10 <2 <2 < 18 <6 06/06/13 - 06/27/13 <1 <1 <3 <1 <2 <1 <2 < 14 <1 <1 < 17 <6 07/04/13 - 07/25/13 <2 <2 <5 <2 <4 <2 <4 < 11 <2 <2 < 20 <6 08/01/13 - 08/29/13 <2 <2 <4 <2 <3 <2 <4 <11 <2 <2 < 19 <5 09/05/13 - 09/26/13 <1 <1 <3 <1 <2 <1 <2 <12 <1 <1 < 18 <6 10/03/13 - 10/31/13 <1 <1 <3 <1 <3 <1 <3 <9 <1 <1 < 14 <4 11/07/13 - 11/27/13 <2 <2 <5 <2 <4 <2 <4 < 13 <2 <2 < 21 <6 12/05/13 - 12/26/13 <2 <2 <4 <2 <3 <2 <3 <9 <2 <2 < 16 <5 MEAN

Table C-I.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-38 01/03/13 - 01/31/13 (1) < 5 < 5 < 10 < 4 < 11 < 4 < 8 < 13 < 5 < 5 < 29 < 9 02/07/13 -02/28/13 <2 < 3 < 7 < 2 < 5 < 3 < 5 < 14 < 2 < 2 < 24 < 8 03/07/13 -03/28/13 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 8 < 2 < 2 < 15 < 5 04/04/13 -04/25/13 < 2 < 3 < 6 < 3 < 5 < 3 < 5 < 12 < 2 < 3 < 23 < 8 05/02/13 -05/30/13 < 2 < 3 < 6 < 2 < 5 < 3 < 5 < 13 < 2 < 2 < 23 < 7 06/06/13 - 06/27/13 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 11 < 2 < 2 < 33 < 11 07/04/13 - 07/25/13 (1) - - - - - - - - - - - -

08/01/13 -08/29/13 < 2 < 2 < 5 < 2 < 4 < 3 < 4 < 13 < 2 < 2 < 23 < 8 09/05/13 -09/26/13 < 2 < 2 < 4 < 1 < 3 < 2 <3 < 12 < 1 < 2 < 20 < 7 10/03/13 - 10/31/13 < 2 < 3 < 6 <2 <4 < 3 <4 < 14 < 2 < 2 < 23 < 8 11/07/13 - 11/27/13 < 2 < 3 < 7 < 3 < 6 < 3 < 5 < 15 < 2 < 2 < 25 < 9 12/05/13 - 12/26/13 < 2 < 2 < 6 < 2 < 4 < 3 < 4 < 11 < 2 < 2 < 20 < 7 MEAN - - - - - - - - - - - -

BD-40 01/03/13 -01/31/13 < 7 < 9 < 18 < 9 < 15 < 8 < 15 < 17 < 7 < 9 < 49 < 20 02/07/13 - 02/28/13 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 11 < 2 < 2 < 20 < 7 03/07/13 - 03/28/13 < 2 < 3 < 6 < 3 < 5 <3 < 5 < 11 < 2 < 2 < 21 < 7 04/04/13 -04/25/13 < 2 < 3 < 6 < 3 < 5 < 3 < 5 < 12 < 2 < 2 < 23 < 8 05/02/13 - 05/30/13 < 2 < 2 < 4 < 2 < 3 < 2 < 4 < 10 < 2 < 2 < 19 < 5 06/06/13 -06/27/13 < 1 < 1 < 2 < 1 <1 < 1 < 2 < 12 < 1 <1 < 15 < 4 07/04/13 - 07/25/13 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 11 < 2 < 2 < 20 < 7 08/01/13 -08/29/13 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 14 < 2 < 2 < 23 < 7 09/05/13 - 09/26/13 < 1 < 1 < 3 < 1 < 2 < 1 < 2 < 13 < 1 < 1 < 18 < 4 10/03/13 - 10/31/13 < 2 < 2 < 4 < 2 <3 <2 < 3 < 11 < 1 <2 < 18 < 5 11/07/13 - 11/27/13 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 13 < 2 < 2 < 20 < 6 12/05/13 - 12/26/13 < 2 < 2 < 6 < 2 < 4 < 3 < 4 < 12 < 2 < 2 < 23 < 7 MEAN - - - - - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-1.4 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-55 01/03/13 - 01/31/13 (1) < 5 <5 < 10 <5 < 10 <7 < 10 < 15 <5 <5 < 32 <7 02/14/13 - 02/28/13 (1) < 1 <1 <3 <1 <3 <2 <3 <8 <1 <1 < 14 <5 03/07/13 - 03/28/13 <2 <2 <4 <2 <3 <2 <3 <9 <1 <2 < 16 <4 04/04/13 - 04/25/13 <2 <2 <5 <2 <4 <2 <4 < 10 <2 <2 < 19 <5 05/02/13 - 05/30/13 <2 <2 <4 <2 <3 <2 <3 < 11 <2 <2 < 18 <5 06/06/13 - 06/27/13 <1 <1 <2 <1 <2 <1 <2 < 14 <1 <1 < 18 <6 07/04/13 - 07/25/13 <2 <3 <6 <2 <5 <3 <5 < 12 <2 <2 < 24 <8 08/01/13 - 08/29/13 <2 <3 <6 <2 <5 <3 <5 < 15 <2 <2 < 25 <7 09/05/13 - 09/26/13 <1 <2 <3 <1 <3 <1 <3 < 12 <1 <1 < 18 <5 10/03/13 - 10/31/13 <2 <2 <4 <2 <4 <2 <4 < 12 <2 <2 < 19 <6 11/07/13 - 11/27/13 <2 <2 <5 <2 <4 <2 <4 < 14 <2 <2 < 24 <6 12/05/13 - 12/05/13 (1) < 2 <2 <6 <2 <3 <3 <4 < 52 <2 <2 < 50 < 16 MEAN BD-56 01/03/13 - 01/31/13 (1) 02/14/13 - 02/28/13 (1) 03/14/13 - 03/28/13 (1) < 2 <2 <4 <2 <4 <2 <3 <9 <2 <2 < 16 <5 04/04/13 - 04/25/13 < 2 <2 <5 <2 <4 <2 <4 <11 <2 <2 < 19 <6 05/02/13 - 05/30/13 < 2 <2 <5 <2 <4 <2 <4 <11 <2 <2 < 19 <6 06/06/13 - 06/27/13 < 1 <1 <3 <1 <2 <1 <2 < 14 <1 <1 < 15 <6 07/04/13 - 07/25/13 < 3 <3 <7 <3 <6 <3 <6 < 14 <2 <3 < 27 <9 08/01/13 - 08/29/13 < 2 <2 <5 <2 <4 <2 <4 < 12 <2 <2 < 21 <7 09/05/13 - 09/26/13 < 1 <1 <3 <1 <2 <1 <2 < 10 <1 <1 < 16 <5 10/03/13 - 10/31/13 < 2 <2 <4 <2 <3 <2 <3 < 11 <1 <2 < 18 <6 11/07/13 - 11/27/13 (1) < 2 <2 <5 <2 <4 <2 <4 < 15 <2 <2 < 23 <8 12/05/13 - 12/05/13 (1) < 2 <3 <7 <2 <5 <3 <5 < 59 <2 <2 < 60 < 19 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

TABLE C-I1.1 CONCENTRATIONS OF GROSS BETA IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-22 PERIOD 01/03/13 01/31/13 4.0 +/- 1.2 01/31/13 02/28/13 3.3 +/- 1.5 02/28/13 03/28/13 3.5 +/- 2.1 03/28/13 04/25/13 3.1 +/- 1.4 04/25/13 05/30/13 3.8 1.4 05/30/13 06/27/13 5.0 1.5 06/27/13 08/01/13 4.4 2.0 08/01/13 08/29/13 3.2 1.6 08/29/13 10/03/13 3.3 1.4 10/03/13 10/31/13 4.9 1.2 10/31/13 11/27/13 5.0 1.7 11/27/13 01/02/14 4.9 2.1 MEAN 4.0 +/- 1.5 TABLE C-II.2 CONCENTRATIONS OF TRITIUM IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-22 PERIOD 01/03/13 01/31/13 388 +/- 128 01/31/13 02/28/13 391 +/- 124 02/28/13 03/28/13 311 +/- 132 03/28/13 04/25/13 678 +/- 146 04/25/13 05/30/13 409 +/- 131 05/30/13 06/27/13 239 +/- 132 06/27/13 08/01/13 892 +/- 142 08/01/13 08/29/13 3300 +/- 383 08/29/13 10/03/13 5760 +/- 619 10/03/13 10/31/13 1310 +/- 203 10/31/13 11/27/13 1150 +/- 175 11/27/13 01/02/14 238 +/- 118 MEAN 1256 +/- 3310 TABLE C-11.3 CONCENTRATIONS OF 1-131 IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION BD-22 PERIOD 01/03/13 01/31/13 < 0.8 01/31/13 02/28/13 < 1.0 02/28/13 03/28/13 < 0.9 03/28/13 04/25/13 < 0.7 04/25/13 05/30/13 < 0.5 05/30/13 06/27/13 < 0.7 06/27/13 08/01/13 < 0.7 08/01/13 08/29/13 < 0.6 08/29/13 10/03/13 < 0.7 10/03/13 10/31/13 < 0.7 10/31/13 11/27/13 < 0.8 11/27/13 01/02/14 < 0.7 MEAN C-5

Table C-II.4 CONCENTRATIONS OF GAMMA EMITTERS IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-22 01/03/13 -01/31/13 < 1 <2 < 4 < 1 < 3 < 2 < 3 < 1 < 1 < 18 < 6 01/31/13 -02/28/13 < 1 < 1 < 3 < 2 < 3 < 2 < 3 < 1 < 1 < 15 < 5 02/28/13 - 03/28/13 < 3 < 4 < 8 < 2 < 7 < 4 < 6 < 3 <3 < 37 < 11 03/28/13 -04/25113 < 1 <1 < 2 < 1 < 2 < 1 < 2 < 1 < 1 < 17 < 5 04/25/13 -05/30/13 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 2 < 2 < 24 < 8 05/30/13 -06/27/13 < 1 < 1 < 2 < 1 < 2 < 1 < 1 < 1 < 1 < 13 < 4 06/27/13 -08/01/13 < 1 < 1 < 3 < 1 < 3 < 2 < 3 < 1 < 1 < 13 < 4 08/01/13 -08/29/13 < 1 < 1 < 2 < 1 < 1 < 1 < 1 < 1 < 1 < 17 < 5 08/29/13 - 10/03/13 < 1 < 2 < 4 < 1 < 3 < 2 < 3 < 1 < 1 < 30 < 9 10/03/13 - 10/31/13 < 2 < 2 < 5 < 2 < 3 < 2 < 4 < 2 < 2 < 39 < 11 10/31/13 - 11/27/13 < 2 < 2 < 5 < 2 < 3 < 2 < 4 < 1 < 2 < 41 < 13 11/27/13 - 01/02/14 < 2 <2 <5 <2 < 4 < 2 <4 < 2 <2 < 17 < 6 MEAN - - - - - - - - - - -

Table C-II1.1 CONCENTRATIONS OF TRITIUM IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 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 01/111113 - 01/11/13 < 186 < 186 < 187 < 181 < 181 < 180 < 181 < 184 04/11/13 - 04/11/13 < 194 < 198 < 194 < 180 < 179 < 177 < 177 < 179 07/11/13 - 07/11/13 < 197 (1) < 197 < 195 < 196 < 195 < 197 < 198 08/01/13 - 08/01/13 < 182 10/11/13 - 10/11/13 < 193 (1) < 194 < 192 < 192 < 187 < 171 < 176 11/07/13 - 11/07/13 < 158 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, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-13 01/11/13 - 01/111 113 <2 <2 <4 <2 <4 <2 <3 <4 <2 <2 < 10 <4 04/11/13 - 04/11/ '13 <3 <3 <6 <3 <6 <4 <7 <9 <3 <3 < 21 <6 07/11/13 - 07/11/ '13 <4 <4 <9 <3 <8 <4 <7 <11 <4 <4 < 28 <8 10/10/13 - 10/10/ '13 <4 <4 <9 <4 <7 <4 <7 <11 <4 <4 < 24 < 10 MEAN BD-34 01/11/13 - 01/11/13 <2 <3 <5 <2 <5 <3 <4 <6 <2 <3 < 13 <4 04/11/13 - 04/11/13 <5 <5 <9 <5 < 10 <5 <8 < 13 <4 <5 < 27 < 10 08/01/13 - 08/01/13 <2 <2 <4 <2 <4 <2 <3 <5 <2 <2 < 12 <4 11/07/13 - 11/07/13 <5 <5 <11 <6 < 11 <6 < 10 < 14 <5 <6 < 34 <11 MEAN

(¢1 BD-35 01/11/13 - 01/11/13 <3 <3 <6 <3 <5 <3 <4 <6 <2 <3 < 16 <5 04/11/13 - 04/11/13 <5 <5 <9 <6 < 10 <5 <8 < 13 <4 <5 < 28 < 10 07/11/13 - 07/11/13 <3 <4 <8 <4 <8 <5 <7 < 11 <4 <4 < 25 <9 10/11/13 - 10/11/13 <5 <5 <9 <4 <9 <6 <9 < 14 <4 <5 < 34 <8 MEAN BD-36 01/11/13 - 01/11/13 <2 <2 <5 <2 <5 <3 <4 <6 <2 <2 < 14 <4 04/11/13 - 04/11/13 <4 <4 <9 <4 <9 <5 <8 < 12 <4 <4 < 25 <9 07/11/13 - 07/11/13 <4 <4 <9 <4 <8 <5 <8 < 12 <4 <5 < 25 <8 10/11/13 - 10/11/13 <4 <5 <9 <4 <8 <5 <7 < 13 <4 <4 < 29 <9 MEAN BD-37 01/11/13 - 01/11/13 <3 <3 <6 <3 <6 <3 <5 <6 <3 <3 <16 <5 04/11113 - 04/11/13 <3 <4 <8 <4 <6 <4 <8 <10 <3 <4 <24 < 8 07/11/13 - 07/11/13 <4 <5 <6 <4 <8 <5 <7 <13 <5 <4 <28 < 10 10/11/13 - 10/11/13 <4 <5 <8 <5 <7 <5 <8 <12 <4 <4 <29 <9 MEAN

Table C-111.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-1 34 Cs-137 Ba-140 La-140 PERIOD BD-50 01/11/13 - 01/11/13 < 2 <2 <4 <2 <4 <2 <4 <5 <2 <2 <12 <4 04/11/13 - 04/11/13 < 5 <5 <12 <6 <10 <5 <9 <13 <5 <5 < 34 < 12 07/11/13 - 07/11/13 < 5 <6 <10 <5 <8 <6 <8 <13 <5 <5 < 28 < 12 10/11/13 - 10/11/13 < 4 <5 <9 <4 <7 <5 <8 <13 <4 <5 <30 <8 MEAN BD-51 01/11/13 - 01/11/13 < 3 <3 <6 <3 <5 <3 <5 <6 <3 <3 <16 <5 04/11/13 - 04/11/13 < 4 <4 <9 <3 <8 <4 <8 <11 <3 <4 <25 <9 07/11/13 - 07/11/13 < 5 <4 <11 <6 <10 <5 <9 <11 <4 <5 <26 < 9 10/11/13 - 10/11/13 < 5 <5 <11 <5 <9 <5 <8 <14 <5 <5 < 32 < 10 MEAN 1-b BD-54 01/11/13 - 01/11/13 < 2 <2 <5 <2 <5 <2 <4 <5 <2 <3 <13 <5 04/11/13 - 04/11/13 < 4 <4 <10 <5 <8 <5 <8 <11 <4 <5 <28 <8 07/11/13 - 07/11/13 < 6 <6 <9 <5 <11 <5 < 10 < 13 < 5 <6 < 30 < 12 10/11/13 - 10/11/13 < 5 <5 <10 <6 <10 <6 < 10 < 14 < 5 <5 <31 < 10 MEAN

Table C-IV.1 (1) CONCENTRATIONS OF NICKEL-63 AND GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 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 1-131 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-25 Golden Redhorse 05/02/13 < 42 < 46

102 < 39 < 93

52 < 80

414

36

32

662

163 Channel Catfish 05/02/13 < 58

63

129

51

103 < 53 < 111 < 561 < 53 < 54 < 777

156 Golden Redhorse 10/01/13 < 231 < 49

61

141 < 48

80

63

98 < 557

52

56

958

198 Channel Catfish 10/01/13 < 150 < 43

51

141 < 45 < 99

60 < 95

368

41 < 45

650

239 MEAN BD-28 Golden Redhorse 05/02/13 <84

87

156

70 150

84

161

860

68

81 < 1209

278 Channel Catfish 05/02/13 < 38

36

120 < 49 97 < 47

81

371

40 < 42

584

257

(-I Common Carp 10/01/13 < 186 < 62

69

140 < 59 130 < 79

118

596 < 59 < 55 < 999 < 247 0

Channel Catfish 10/01/13 < 157 < 50 < 62

141 *61 120

64

115

538 < 47

63

898 < 225 MEAN BD-41 Largemouth Bass 05/01/13 < 63 < 79

188

68 144 < 75

139

696

63 < 76 < 1132 < 332 Channel Catfish 05/01/13 < 74

81

190

62 158

81

137

796

58 < 72 < 1030 < 273 Common Carp 10/01/13 < 181 < 67

78

144

63 133

89

122

729

69

65

926 < 362 Largemouth Bass 10/01/13 < 173 < 62 < 72

180

66 108

76 < 119

611 < 47

61

836 < 360 MEAN (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION

Table C-V.1 (2) CONCENTRATIONS OF NICKEL-63 AND GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 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 05/16/13 < 98 < 105 < 274 < 137 < 249 < 148 < 183 < 102 134 +/- 72 < 734 < 197 10/04/13 < 194 < 65 < 82 < 214 < 74 < 144 < 96 < 157 < 61 < 67 < 1182 < 396 MEAN BD-25 05/16/13 < 120 < 119 < 282 < 118 < 256 < 137 < 221 < 112 < 147 < 860 < 209 10/03/13 < 216 < 51 < 51 < 142 < 47 < 112 < 60 < 108 < 35 < 49 < 714 < 193 MEAN BD-57 05/16/13 <64 < 69 < 227 < 75 < 151 < 85, < 123 < 52 109 +/- 80 < 359 < 151

(-I 10/04/13 < 203 < 98 < 107 < 268 < 105 < 206 < 135 < 207 < 78 157 +/- 110 < 1613 < 497 MEAN 133 +/- 68 (2) SEE PROGRAM CHANGES SECTION FOR EXPLANATION

Table C-VI.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I I GROUP 11 GROUP III PERIOD BD-06 BD-19 BD-20 BD-21 BD-02 BD-04 BD-05 BD-03 01/03/13 -01/10/13 42 +/-6 49 +/-6 52 +/-6 46 +/-6 43 +/-6 49 +/-6 52 +/-6 52 +/-6 01/10/13-01/17/13 27 +/-5 25 +/-5 23 +/-5 26 +/-5 29 +/-5 24 +/-5 25 +/-5 24+/- 5 01/17/13-01/24/13 17 +/-4 19 +/-5 20 +/-5 21 +/-5 21 +/-5 22 +/-5 22 +/-5 20+/- 5 01/24/13 -01/31/13 25 +/- 5 21 +/- 5 25 +/- 5 25 +/- 5 11 +/- 4 26 +/- 5 29 +/- 5 28 +/- 5 01/31/13-02/07/13 33 +/-5 32 +/-5 29 +/-5 31 +/-5 29 +/-5 29 +/-5 33 +/-5 36 +/-5 02107/13 -02/14/13 19 +/-4 21 +/-5 21 +/-5 21 +/-5 20 +/-5 19 +/-4 23 +/-5 18+/- 4 02/14/13 -02/21/13 17 +/-4 18 +/-4 13 +/-4 14 +/-4 14 +/-4 14 +/-4 16 +/-4 16+/- 4 02/21/13 -02/28/13 12 +/- 4 13 +/- 4 14 +/- 4 11 +/- 4 11 +/- 4 15 +/- 4 16 +/- 4 13 +/- 4 02/28/13 -03/07/13 15 +/-4 14 +/-4 12 +/-4 12 +/-4 10 +/-4 16 +/-4 12 +/-4 14+/- 4 03/07/13 -03/14/13 13 +/- 4 15 +/- 5 13 +/- 4 16 +/- 5 14 +/- 5 15 +/- 5 13 +/- 4 15 +/- 5 03/14/13 -03/21/13 21 +/-5 20 +/-4 21 +/-5 18 +/-4 20 +/-4 21 +/-4 22 +/-5 26+/- 5 03/21/13 - 03/28/13 9 +/- 4 7 +/- 4 8 +/- 4 6 +/- 3 6 +/- 3 10 +/- 4 10 +/- 4 11 +/- 4 03/28/13 - 04/04/13 23 +/- 5 20 +/- 4 15 +/- 4 14 +/- 4 20 +/- 4 24 +/- 5 19 +/- 4 15 +/- 4 04/04/13 - 04/11/13 12 +/- 4 15 +/- 4 18 +/- 4 14 +/- 4 14 +/- 4 15 +/- 4 16 +/- 4 14 +/- 4 04/11/13 - 04/18/13 13 +/- 4 10 +/- 4 10 +/- 4 9 +/- 4 8 +/- 4 9 +/- 4 14 +/- 4 10 +/- 4 04/18/13 - 04/25/13 12 +/-4 14+/-4 17 +/-4 18 +/-4 18 +/-4 17 +/-4 16 +/-4 14+/- 4 04/25/13 - 05/02/13 19 +/-5 21 5+/- 21 +/-5 21 +/-5 18 +/-5 21 +/-5 20 +/-5 18 +/-5 (1) 05/02/13 - 05/09/13 <6 6+/-4 8 +/-4 8 +/-4 9 +/-4 9 +/-4 10 +/-4 10+/- 4 05/09/13 -05/16/13 12 +/-5 10+/-5 12 +/-5 14 +/-5 12 +/-5 9 +/-5 10 +/-5 17+/- 5 05/16/13 - 05/23/13 18 +/-4 16+/-4 14 +/-4 13 +/-4 17 +/-4 16 +/-4 16 +/-4 14+/- 4 05/23/13 - 05/30/13 9 +/-4 16+/-4 16 +/-4 8 +/-4 13 +/-4 10 +/-4 15 +/-4 12+/- 4 05/30/13 -06/06/13 6 +/-3 <5 7 +/-4 10 +/-4 12 +/-4 8 +/-4 9 +/-4 9+/- 4 06/06/13 - 06/13/13 16 +/-4 20+/-4 17 +/-4 22 +/-4 17 +/-4 18 +/-4 18 +/-4 17+/- 4 06/13/13 - 06/20/13 14 +/- 4 15 +/-4 9 +/- 4 11 +/- 4 10 +/- 4 11 +/- 4 12 +/- 4 11 +/- 4 06/20/13 - 06/27/13 15 +/-4 16+/-4 18 +/-4 17 +/-4 16 +/-4 18 +/-4 20 +/- 5 13 +/-4 06/27/13 - 07/04/13 10 +/-4 10 +/-4 12 +/-4 8 +/-4 6 +/-4 10 +/-4 12 +/-4 8+/- 4 07/04/13 - 07/11/13 14 +/- 4 18 +/- 5 19 +/- 5 20 +/- 5 18 +/- 5 16 +/- 5 19 +/- 5 18 +/- 5 (1) 07/11/13 - 07/18/13 12 +/- 4 10 +/- 4 9 +/- 4 9 +/- 4 9 +/- 4 13 +/- 4 10 +/- 4 < 6 07/18/13 - 07/25/13 14 +/- 4 17 +/- 4 17 +/- 4 14 +/- 4 15 +/- 4 13 +/- 4 14 +/- 4 14 +/- 5 (1) 07/25/13 - 08/01/13 13 +/- 4 12 +/- 4 15 +/- 4 11 +/- 4 13 +/- 4 11 +/- 4 17 +/- 4 13 +/- 5 (1) 08/01/13 - 08/08/13 19 +/-4 16 +/-4 18 +/-4 20 +/-4 20 +/-5 17 +/-4 20 +/-4 18 +/-5 (1) 08/08/13 - 08/15/13 22 +/-4 17 +/-4 22 +/-4 19 +/-4 20 +/-4 18 +/-4 15 +/-4 17+/- 4 08/15/13 -08/22/13 31 +/-5 28 +/-5 31 +/-5 27 +/-5 34 +/-6 27 +/-5 30 +/-5 24+/- 5 08/22/13 -08/29/13 24 +/-5 25 +/-5 30 +/-5 26 +/-5 24 +/-5 23 +/-5 22 +/-5 26+/- 5 08/29/13 -09/05/13 20 +/-5 22 +/-5 21 +/-5 18 +/-4 19 +/-5 17 +/-4 17 +/-4 19 +/-5 09/05/13 -09/12/13 34 +/-5 32 +/-5 34 +/-5 34 +/-5 37 +/-6 34 +/-5 36 +/-6 34 +/-5 09/12/13 -09/19/13 19 +/-4 17 +/-4 17 +/-4 17 +/-4 18 +/-4 21 +/-5 20 +/-5 13 +/-7 (1) 09/19/13 - 09/26/13 16 +/-4 16 +/-4 14 +/-4 16 +/-4 16 +/-4 16 +/-4 13 +/-4 18+/- 4 09/26/13 - 10/03/13 24 +/-5 21 +/-4 22 +/-4 21 +/-4 25 +/-5 23 +/-5 24 +/-5 18+/- 4 10/03/13 - 10/10/13 21 +/- 4 18 +/-4 20 +/-4 20 +/-4 17 +/-4 19 +/-4 20 +/-4 17+/- 4 10/10/13 - 10/17/13 25 +/-5 21 +/-5 25 +/-5 23 +/-5 20 +/-4 24 +/-5 21 +/-5 18+/- 4 10/17/13 - 10/24/13 17 +/-4 18 +/-4 18 +/-4 17 +/-4 17 +/-4 18 +/-4 14 +/-4 17+/- 4 10/24/13 - 10/31/13 19 +/-5 23 +/-5 19 +/-5 22 +/-5 26 +/-5 21 +/-5 20 +/-5 17+/- 5 10/31/13 - 11/07/13 26 +/- 5 23 +/- 5 26 +/- 5 24 +/- 5 19 +/- 5 24 +/- 5 24 +/- 5 23 +/- 5 11/07113 - 11/14/13 15 +/- 5 17 +/- 5 16 +/- 5 16 +/- 5 19 +/- 5 18 +/- 5 19 +/- 5 17 +/- 5 11/14/13 - 11/21/13 16 +/- 6 13 +/- 6 16 +/- 6 13 +/- 6 18 +/- 6 13 +/- 6 20 +/- 6 16 +/- 6 11/21/13 - 11/27/13 15 +/- 5 22 +/- 5 21 +/- 5 17 +/- 5 19 +/- 5 19 +/- 5 22 +/- 5 17 +/- 6 (1) 11/27/13 - 12/05/13 36 +/- 5 37 +/- 5 35 +/- 5 40 +/- 5 37 +/- 5 41 +/- 5 43 +/- 5 35 +/- 5 12/05/13 - 12/12/13 36 +/-5 32 +/-5 35 +/-5 38 +/-6 33 +/-5 33 +/-5 35 +/-5 31+/- 5 12/12/13 - 12/19/13 30 +/-5 36 +/-5 31 +/-5 29 +/-5 25 +/-5 29 +/-5 29 +/-5 28+/- 5 12/19/13 - 12/26/13 30 +/-5 24 +/-5 24 +/-5 28 +/-5 25 +/-5 25 +/-5 29 +/-5 25+/- 5 12/26/13 -01/02/14 26 +/-5 24 +/-5 30 +/-5 30 +/-5 25 +/-5 30 +/-5 30 +/-5 23+/- 5 MEAN 20 +/-16 20 +/-16 20 +/-17 19 +/-17 19 +/-16 20 +/-16 20 +/-17 19 +/-16 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, 2013 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+

2SD 2SD PERIOD 2SD PERIOD PERIOD 01/03/13 - 01/31/13 Lto f zo U !IUOI io - 01/31/13 I I D/ +/- 25 01/03/13 01/31/13 20 52 31 +/- 29 01/31/13 - 02/28/13 11 33 20 +/- 15 01/31/13 - 02/28/13 11 33 20 +/- 14 01/31/13 02/28/13 13 36 21 +/- 20 02/28/13 - 04/04/13 6 23 15 +/- 10 02/28/13 - 04/04/13 6 24 15 +11 02/28/13 04/04/13 11 26 16 +/- 12 04/04/13 - 05/02/13 9 21 15 +/- 8 04/04/13 - 05/02/13 8 21 15 +8 04/04/13 05/02/13 10 18 14 +/- 7 05/02/13 - 05/30/13 6 18 12 +/- 7 05/02/13 - 05/30/13 9 17 12 +/-6 05/02/13 05/30/13 10 17 13 +/- 6 05/30/13 - 07/04/13 6 22 13 +/- 9 05/30/13 - 07/04/13 6 20 13 +9 05/30/13 07/04/13 8 17 12 +/- 7 07/04/13 - 08/01/13 9 20 14 +/- 7 07/04/13 - 08/01/13 9 19 14 +/-6 07/04/13 08/01/13 13 18 15 +/- 6 08/01/13 - 08/29/13 16 31 23 +/- 10 08/01/13 - 08/29/13 15 34 22 +11 08/01/13 08/29/13 17 26 21 +/- 9 08/29/13 - 10/03/13 14 34 22 +/- 13 08/29/13 - 10/03/13 13 37 22 +15 08/29/13 10/03/13 13 34 20 +/- 16 10/03/13 - 10/31/13 17 25 20 +/- 5 10/03/13 - 10/31/13 14 26 20 +/-6 10/03/13 10/31/13 17 18 17 +/- 2 10/31/13 - 11/27/13 13 26 19 +/- 9 10/31/13 - 11/27/13 13 24 19 +/-6 10/31/13 11/27/13 16 23 18 +/- 7 11/27/13 - 01/02/14 24 40 31 +/- 10 11/27/13 - 01/02/14 25 43 31 +11 11127/13 01/02/14 23 35 28 +/- 10 01/03/13 - 01/02/14 6 52 20 +/- 16 01/03/13 - 01/02/14 6 52 20 +/- 17 01/03/13 - 01/02/14 8 52 19 +/- 16 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES

Table C-VI.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-02 01/03/13 - 04/04/13 <3 <3 <8 <3 <9 <4 <7 <5 <3 < 42 < 16 04/04/13 - 07/04/13 <2 <2 <4 <2 <4 <2 <4 <2 <2 < 22 <5 07/04/13 - 10/03/13 <2 <3 <7 <2 <6 <3 <8 <2 <2

70 < 28 10/03/13 - 01/02/14 <2 <2 <4 <2 <7 <3 <5 <3 <3 < 30

14 MEAN BD-03 01/03/13 - 04/04/13 <2 <3 <8 <3 <7 <2 <4 <2 <2

21 < 10 04/04/13 - 07/04/13 <2 <3 <8 <3 <5 <3 <4 <2 <2

23 <6 07/04/13 - 10/03/13 <2 <3 < 10 <2 <6 <4 <5 <2 <3 <64 < 27 10/03/13 - 01/02/14 <3 <3 <8 <3 <7 <3 <5 <3 <3 < 30 < 15 MEAN BD-04 01/03/13 - 04/04/13 <1 <2 <6 <2 <7 <3 <4 <3 <2 < 32 < 13 04/04/13 - 07/04/13 <2 <3 <4 <3 <4 <3 <4 <2 <2 < 23 < 12 07/04/13 - 10/03/13 <2 <3 <7 <2 <5 <2 <6 <2 <2 < 53 < 24 10/03113 - 01/02/14 <3 <4 <7 <3 <9 <4 <7 <4 <3 < 43 < 16 MEAN BD-05 01/03/13 - 04/04/13 <3 3 <5 <3 <8 <3 <7 <3 <2 < 36 < 14 04/04/13 - 07/04/13 <3 3 <9 <3 <6 <3 <6 <2 <3 < 29 < 11 07/04/13 - 10/03/13 <2 3 < 11 <3 <8 <5 <6 <3 <3 < 67 < 21 10/03/13 - 01/02/14 <2 2 <6 <2 <6 <2 <4 <2 <2 < 23 <8 MEAN BD-06 01/03/13 - 04/04/13 <3 <3 < 10 <3 <8 <3 <5 <3 <3 <35 < 12 04/04/13 - 07/04/13 <3 <4 <7 <5 < 11 <4 <8 <3 <4 <42 < 12 07/04/13 - 10/03/13 <2 <3 <6 <1 <6 <3 <5 <2 <3 < 52 < 18 10/03/13 - 01/02/14 <3 <2 <7 <3 <5 <3 <6 <3 <3 <31 MEAN

Table C-VI.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA "

SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-19 01/03/13 - 04/04/ 13 <3 <4 <8 <3 <7 <4 <7 <4 <3

36 <12 04/04/13 - 07/04/ 13 <3 <3 <8 <3 <6 <3 <4 <3 <3

26 <6 07/04/13 - 10/03/ 13 <2 <3 <10 <3 <5 <3 <5 <2 <2

62 <19 10/03/13 - 01/02/ 14 <2 <3 <9 <2 <5 <3 <5 <2 <3

31

14 MEAN BD-20 01/03/13 04/04/13 <3 <4 <8 <2 <7 <3 <7 <4 <3 < 48 *16 04/04/13 07/04/13 <2 <3 <5 <2 <5 <2 <5 <2 <2

19 <7 07/04/13 10/03/13 <2 <3 <7 <3 <4 <3 <5 <2 <2

50 <17 10/03/13 01/02/14 <4 <5 <13 <3 <9 <5 <8 <4 <4 < 43 *14 MEAN (i

BD-21 01/03/13 04/04/13 <2 <2 <6 <3 <4 <2 <3 <2 <2

28 <13 04/04/13 07/04/13 <2 <2 <5 <2 <4 <3 <4 <2 <2

18 <7 07/04/13 10/03/13 <2 <4 <9 <2 <6 <3 <8 <3 <3

58 < 31 10/03/13 01/02/14 <3 <2 <6 <3 <7 <3 <5 <2 <2

32 <11 MEAN

Table C-VII.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I GROUP 11 I GROUP III PERIOD BDJ-06 BD-19 BD-20 BIJ-21 BD-02 BD-04 BD-05 BD-03 01/03/13 -01/10/13 < 25 < 25

25

25 < 32 < 32

32

32 01/10/13 -01/17/13 < 36 < 36

36 < 36 < 49 < 49 *<46

19 01/17/13 -01/24/13 < 32 < 33

33

33 *<36 < 37

36 < 36 01/24/13 -01/31/13 < 41 < 41

41 < 41 *<38 < 15

38

38 01/31/13 -02/07/13 < 30 < 30

30

30 *<46 < 46 < 47 < 46 02/07/13 -02/14/13 < 57 < 57

57

57 *<51 < 51

23

51 02/14/13 -02/21/13 < 55 < 55

55

55 *<61 < 61

59 *<61 02/21/13 -02/28/13 < 15 < 26

26

26 < 35 < 35

35

35 02/28/13 -03/07/13 < 26 < 26

26

26 < 49 < 49

49

49 03/07/13 -03/14/13 < 40 < 16 < 40 *<40 *<23 < 23 *<24 < 24 03/14/13 -03/21/13 < 38 < 38

38

38 < 40 < 39 *<42

39 03/21/13 -03/28/13 < 33 < 33

14

33 < 40 < 43 *<41

40 03/28/13 -04/04/13 < 21 < 21

21

21 *<27 < 27

28

27 04/04/13 -04/11/13 < 35 < 35

35

15 *<31 < 31

31

31 04/11/13 -04/18/13 < 32 < 32

32

32 *<41 < 41

41

41 04/18/13 -04/25/13 < 39 < 39

39

41 *<22 < 53

53

53

~' 04/25/13 -05/02/13 < 32 < 33

32

32 < 39 < 40

40 < 41 (1) 05/02/13 -05/09/13 < 46 < 46

46

46 *<48 < 48

48

21 05/09/13 -05/16/13 < 42 < 43

43

43 < 46 < 46 < 46 < 46 05/16/13 -05/23/13 < 56 < 38

39

38 < 56 < 22

56

56 05/23/13 -05/30/13 < 24 < 24

24

24 < 37 < 37

37

37 05/30/13 -06/06/13 < 54 < 54

54 < 54 *<60 < 60

32

60 06/06/13 -06/13/13 < 53 < 53

53

53 < 66 < 66

66 *<66 06/13/13 -06/20/13 < 22 < 58

58

58 < 43 < 43 < 43 *<43 06/20/13 -06/27/13 < 23 < 23

23

23 *<21 < 21

21

21 06/27/13 -07/04/13 < 30 < 12

30

30 *<48 < 49

30 < 48 07/04/13 -07/11/13 < 32 < 32

32

32 *<31 < 31

31

33 (1) 07/11/13 -07/18/13 < 37 < 38

38

38 < 47 < 47

47

47 07/18/13 -07/25/13 < 50 < 50

50

50 < 47 < 48

48

60 (1) 07/25/13 -08/01/13 < 63 < 63

63

22 *<68 < 55

63

70 (1) 08/01/13 -08/08/13 < 64 < 64

62 *<64 *<60 < 60

60

66 (1) 08/08/13 -08/15/13 < 66 < 57

57

57 *<26 < 66 *<66 *<66 08/15/13 -08/22/13 < 39 < 39

39

39 < 57 < 57

57

57 08/22/13 -08/29/13 < 29 < 22

22

22 *<29 < 29

29 < 11 08/29/13 -09/05/13 < 60 < 60

60 *<60 *<56 < 56

56

56 09/05/13 -09/12/13 < 30 < 27

27

27 *<29 < 10

30

29 09/12/13 -09/19/13 < 70 < 70

70

53 < 44 < 44 < 44

69 (1) 09/19/13 -09/26/13 < 67 < 51

51 < 51 *<66 < 66 *<40

66 09/26/13 -10/03/13 < 47 < 47 < 47 < 47 < 39 < 39

39

39 10/03/13 -10/10/13 < 24 < 56

56

56 *<67 < 67

67

67 10/10/13 -10/17/13 < 63 < 63

63

63 < 55 < 55

55

55 10/17/13 -10/24/13 < 30 < 13

30

30 < 39 < 40

30

39 10/24/13 -10/31/13 < 56 < 56

57

57 < 59 < 59

59

59 10/31/13 -11/07/13 < 63 < 63

27 *<63 *<67 < 67

68 *<67 11/07/13 -11/14/13 < 44 < 44 < 44 < 44 < 59 < 59

59

59 11/14/13 -11/21/13 < 54 < 54

54

21 < 45 < 45 < 45 < 45 11/21/13 -11/27/13 < 40 < 40

40 *<40 *<56 < 56

56

68 (1) 11/27/13 -12/05/13 < 23 < 23

23

23 <9 < 22

22

22 12/05/13 -12/12/13 < 58 < 58

58

59 *<62 < 62

62

62 12/12/13 -12/19/13 < 65 < 58

58

58 < 65 < 65

65

25 12/19/13 -12/26/13 < 60 < 60

60

60 *<68 < 68

68

68 12/26/13 -01/02/14 < 59 < 63

64 *<64 *<58 < 23

59

58 MEAN----

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1 6

Table C-VIII.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA CONTROL FARM JINDICATOR FARM COLLECTION BD-18 BD-17 PERIOD 01/04/13 < 0.5 < 0.5 02/07/13 < 0.7 < 0.8 03/07/13 < 0.7 < 0.6 04/04/13 < 0.8 < 0.6 05/02/13 < 0.7 < 0.7 05/16/13 < 0.7 < 0.6 05/30/13 < 0.6 < 0.6 06/13/13 < 0.6 < 0.5 06/27/13 < 0.8 < 0.7 07/11/13 < 0.6 < 0.5 07/25/13 < 0.7 < 0.6 08/08/13 < 0.7 < 0.7 08/22/13 < 0.6 < 0.5 09/05/13 < 0.8 < 0.7 09/19/13 < 0.9 < 0.4 10/03/13 < 0.8 < 0.7 10/17/13 < 0.9 < 0.8 10/31/13 < 0.6 < 0.6 11/14/13 < 0.7 < 0.8 12/05/13 < 0.8 < 0.9 MEAN C-17

Table C-VIII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD BD-17 01/04/13 <5 <6 < 13 <6 <11 <5 <9 <5 <5 < 34 < 10 02/07/13 < 6 <8 < 17 <8 < 14 <7 < 12 <6 <6 < 43

12 03/07/13 < 4 <4 < 11 <5 <9 <5 <8 <4 <4

30 <8 04/04/13 < 6 <6

12 <6 *14 <7 < 12 <6 <6 < 41 < 13 05/02/13 < 7 <7 < 18 <8 *17 <9 < 14 <6 <6 < 46 <9 05/16/13 <6 <6 < 15 <8 < 14 <6 < 12 <5 <6 < 37 < 13 05/30/13 <6 <7 < 14 <8 *15 <7 < 11 <6 <8 < 30 <9 06/13/13 < 6 <5

14 <7 < 13 <6 <13 <5 <6 < 27 <7 06/27/13 < 4 <5 <10 <7 < 12 <6 <9 <4 <5 < 33 <8 00 07/11/13 <4 <5 < 12 <6 <10 <4 <9 <4 <5

29 <7 07/25/13 < 5 <6 < 17 <8 < 13 <6 < 11 <6 <6 < 42 < 11 08/08/13 < 5 <6 < 14 <6 < 11 <7 < 11 <5 <5 < 34 < 14 08/22/13 < 5 <5 <11 <6 < 10 <5 <8 <4 <5 < 32 <8 09/05/13 < 6 <6 < 14 <7 < 14 <7 <11 <5 <6 < 40 <11 09/19/13 < 7 <7 < 18 <8 < 18 <7 <14 <6 <8 < 52 < 14 10/03/13 < 8 <7 < 17 <9 < 18 <8 <13 <6 <7 < 48 < 15 10/17/13 < 2 <2 <5 <2 <5 <2 <4 <2 <2 < 18 <5 10/31/13 < 7 <7

17 <7 <17 <7 <11 <6 <6 < 45 < 14 11/14/13 < 5 <6 < 15 <7 < 12 <6 < 10 <4 <5 < 53 < 15 12/05/13 < 7 <7 < 15 <8 *15 <8 <12 <7 <8 < 43 < 11 MEAN

Table C-VIII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-1 37 Ba-140 La-140 PERIOD BD-18 01/04/13 <7 <8 <20 < 10 <16 <8 <13 <5 <7 < 46 < 16 02/07/13 <5 <6 <14 <7 < 11 <7 <10 <5 <5 < 39 <9 03/07/13 <5 <6 <13 <6 < 13 <6 <10 <5 <6 < 36 <7 04/04/13 <6 <5 <14 <8 < 12 <6 <13 <6 <6 < 46 < 12 05/02/13 <5 <6 <15 <7 <15 <6 <11 <5 <6 < 40

12 05/16/13 <6 <7 <15 <7 < 14 <7 <9 <5 <6 < 44 < 13 05/30/13 <6 <5 <13 <7 < 13 <5 <9 <6 <6 < 27 <8 06/13/13 <6 <7 <15 <8 < 13 <7 <11 <5 <7

28 <9 c-i 06/27/13 <5 <6 <14 <7 < 13 <7 <10 <6 <6 < 39 < 10

'~0 07/11/13 <5 <5 <11 <5 <10 <5 <9 <4 <5 < 33 <8 07/25/13 <6 <6 <14 <7 < 13 <7 <11 <6 <6 < 44 < 14 08/08/13 <7 <7 <16 <7 < 15 <8 <13 <6 <7 < 49 *13 08/22/13 <5 <5 <10 <6 < 10 <5 <9 <5 <5 < 36 <8 09/05/13 <6 <7 <16 <9 < 15 <7 <13 <6 <6 < 39 < 11 09/19/13 <6 <7 <13 <8 < 14 <7 <11 <6 <6 < 42 < 11 10/03/13 <7 <7 <14 <7 < 15 <7 <10 <5 <6 < 45 <8 10/17/13 <2 <2 <6 <3 <5 <3 <4 <2 <2 < 20 <6 10/31/13 <7 <7 <16 <7

14 <7 <14 <6 <7 < 42 < 15 11/14/13 <5 <6 <15 <6 < 12 <6 <12 <4 <6 < 51 < 14 12/05/13 <7 <6 <17 <9 < 15 <6 <12 <6 <7 < 45 <9 MEAN

Table C-IX.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PC/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 09/11/13 < 9 < 10 < 27 < 13 < 23 < 12 < 19 < 9 < 10 < 104 < 30 Brussel sprouts 09/11/13 < 9 < 9 < 24 < 9 < 20 < 10 < 18 < 8 < 19 < 95 < 32 MEAN BD-QUAD 1 Beets 09/11/13 < 7 <8 <18 <7 < 15 < 9 < 15 < 6 < 7 < 76 < 19 Cabbage 09/11/13 < 7 <8 <22 <9 < 15 < 10 < 14 < 7 < 16 < 79 < 27 MEAN BD-QUAD 2 Beet greens 09/11/13 < 9 < 10 < 24 < 11 < 21 < 11 < 18 <8 <9 < 91 < 19 Beets 09/11/13 < 7 <8 <19 <8 <18 <8 <13 <6 <6 < 64 < 18 n

MEAN BD-QUAD 3 Beet greens 09/04/13 < 10 < 13 < 35 < 16 < 30 < 13 < 24 < 10 < 11 < 96 < 27 Beets 09/04/13 < 10 < 11 < 29 < 13 < 24 < 12 < 19 < 10 < 10 < 94 < 30 MEAN - - - - - - - - - -

BD-QUAD 4 Lettuce 09/04/13 < 12 < 12 < 36 < 16 < 29 < 13 < 24 < 10 < 11 < 98 < 23 Radishes 09/04/13 < 12 < 13 < 36 < 18 < 31 < 14 < 26 < 9 < 14 < 98 < 26 MEAN

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 20 BD-02-2 19.1 4.4 18 BD-03-1 19.5 +/- 4.3 18 BD-03-2 19.8 +/- 4.1 19 BD-04-1 18.6 +/- 4.5 17 BD-04-2 18.2 +/- 5.6 16 BD-05-1 19.5 +/- 3.6 19 BD-05-2 19.4 +/- 4.4 18 BD-06-1 17.9 + 3.8 18 BD-06-2 18.3 +/- 4.3 17 BD-19-1 19.3 +/- 4.2 18 BD-19-2 20.4 +/- 4.8 20 BD-20-1 19.2 +/- 3.7 18 BD-20-2 19.5 +/- 5.0 18 BD-21-1 18.6 +/- 3.9 17 BD-21-2 19.0 +/- 4.7 17 BD-101-3 19.5 +/- 4.0 19 B0-101-4 19.3 +/- 3.4 19 BD-102-1 18.3 +/- 4.1 17 BD-102-2 20.6 +/- 6.1 19 BD-103-1 18.8 +/- 3.6 19 B0-103-2 20.1 +/- 3.5 20 BD-104-1 18.4 +/- 6.7 (1)

BD-104-2 18.3 +/- 3.4 18 BD-105-1 18.0 +/- 5.1 17 BD-105-2 18.8 +/- 5.1 17 BD-106-1 17.2 +/- 4.5 17 BD-106-2 18.0 +/- 4.5 18 BD-107-1 17.5 +/- 5.1 17 BD-107-2 18.1 +/- 4.3 16 BD-108-1 18.1 +/- 4.3 19 BD-108-2 18.9 +/- 4.6 19 BD-109-1 22.2 +/- 5.9 21 BD-109-2 21.5 +/- 5.5 20 BD-110-1 17.9 +/- 4.6 17 BD-110-2 17.9 +/- 4.7 17 BD-112-1 18.3 +/- 4.2 18 BD-112-2 18.6 +/- 5.1 18 BD-114-1 19.6 +/- 5.5 18 BD-114-2 18.4 +/- 4.2 17 BD-115-1 18.9 +/- 3.2 18 BD-115-2 19.0 +/- 4.7 18 BD-116-1 19.7 +/- 3.5 19 BD-1 16-2 19.5 +/- 4.2 19 BD-201-1 24.3 +/- 7.1 (1)

BD-201-2 20.8 +/- 5.9 (1)

BD-202-1 18.7 +/- 5.2 17 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-21

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-202-2 19.0 +/- 4.5 22 BD-203-1 19.3 +/- 4.5 21 BD-203-2 18.1 +/- 3.4 20 BD-204-1 17.6 +/- 4.5 20 BD-204-2 18.1 +/- 5.6 22 BD-205-1 18.1 +/- 5.1 21 BD-205-2 16.8 +/- 2.7 (1)

BD-206-1 19.4 +/- 4.6 22 BD-206-2 19.3 +/- 4.3 22 BD-207-1 17.8 +/- 5.2 20 BD-207-2 18.3 +/- 4.8 21 BD-208-1 18.6 +/- 4.4 22 BD-208-2 19.0 +/- 5.1 23 BD-209-1 22.9 +/- 4.4 26 BD-209-2 24.7 + 6.4 29 BD-210-1 20.1 + 2.8 22 BD-210-2 21.8 +/- 6.1 25 BD-211-1 23.4 +/- 5.1 26 BD-211-2 24.1 +/- 6.2 26 BD-212-3 20.1 +/- 5.1 23 BD-212-4 23.5 + 5.2 27 BD-213-3 17.3 +/- 3.2 19 BD-213-4 17.9 +/- 5.1 21 BD-214-1 19.2 +/- 6.3 23 BD-214-2 22.2 +/- 5.5 25 BD-215-1 18.5 +/- 3.7 20 BD-215-2 18.0 +/- 4.9 21 BD-216-1 20.5 +/- 4.7 24 BD-216-2 20.5 +/- 3.5 (1)

BD-111A-1 18.2 +/- 4.3 21 BD-11 1A-2 19.2 +/- 5.6 22 BD-1 13A-1 18.6 +/- 4.5 22 BD-1 13A-2 18.9 +/- 3.8 21 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-22

TABLE C-X.2 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING, OUTER RING, OTHER AND CONTROL LOCATIONS FOR BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION COLLECTION SITE BOUNDARY INTERMEDIATE DISTANCE OTHER CONTROL PERIOD +/- 2 S.D.

JAN-MAR 16.5 +/- 2.4 17.2 +/- 3.9 16.9 +/- 1.0 17.2 +/- 0.3 APR-JUN 18.0 +/- 2.1 19.1 +/- 4.9 17.9 +/- 2.3 18.6 +/- 0.6 JUL-SEP 19.3 +/- 2.8 20.5 +/- 4.8 19.6 +/- 1.8 20.9 +/- 1.6 OCT-DEC 21.6 +/- 2.8 22.8 +/- 5.0 21.8 +/- 1.5 21.8 +/- 0.7 TABLE C-X.3 MEAN QUARTLY OSLD RESULTS FOR THE INNER RING,OUTER RING, OTHER AND CONTROL 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.

SITE BOUNDARY 127 14.1 26.1 18.9 +/- 4.5 INTERMEDIATE DISTANCE 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 SITE BOUNDARY 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-1 11A-2, BD-1 12-1, BD-1 12-2, BD-1 13A-1, BD-1 13A-2, BD-1 14-1, BD-1 14-2, BD-1 15-1, BD-1 15-2, BD-1 16-1, BD-1 16-2 INTERMEDIATE DISTANCE 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 C-23

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

Collected in the Vicinity of Braidwood Station, 2000 - 2013 BD-10 Kankaee River, Downstream 10.0 8.0 6.0

-L C.,

4.0 2.0 0.0 1 01-01-00 10-20-02 08-08-05 05-27-08 03-16-11 01-02-14 BD-25 (C) Kankakee River, Upstream 16.0 14.0 12.0 10.0

-J 8.0 6.0 4.0 2.0 0.0 01-01-00 10-20-02 08-08-05 05-27-08 03-16-11 01-02-14 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 - 2013 BD-38 Main Drainage Ditch 14.0 12.0 10.0

-J 8.0 Ca 0.

6.0 4.0

2.0

0.0 01-25-07 06-15-08 11-04-09 03-26-11 08-14-12 01-03-14 BD-40 Braidwood Station Cooling Lake 16.0 14.0 12.0 10.0 CJ (a 8.0 0.

6.0 4.0 2.0 0.0 L 10-05-06 03-17-08 08-28-09 02-08-11 07-21-12 01-01-14 C-25

FIGURE C-3 Surface Water - Gross Beta - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2013 BD-55 North Pond Fatlan Site 14.0 12.0 10.0 8.0 C.

0.

6.0 4.0 2.0 hppl Ivv ýOwl 0.0 I I I I I 06-15-08 11-04-09 03-26-11 08-14-12 01-03-14 01-2 5-07 BD-56 South Pond Fatlan Site 10.0 -

8.0 6.0

-I C.)

4.0 2.0 +

.90 Lrw 0 0 nf( I I I I 01-25-07 06-15-08 11-04-09 03-26-11 08-14-12 01-03-14 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 - 2013 BD-10 Kankakee River, Downstream 3000 2500 2000

,.J 1500 a.

1000 500 0 -

03-25-00 12-26-02 09-27-05 06-29-08 04-01-11 01-01-14 BD-25 (C) Kankakee River, Upstream 400 300 200 a.

100 0 1 .-

03-25-00 12-26-02 09-27-05 06-29-08 04-01-11 01-01-14 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 - 2013 BD-38 Main Drainage Ditch 2400 2100 1800 1500 CL' 1200 900 600 300 0

03-09-06 10-01-07 04-24-09 11-16-10 06-09-12 01-01-14 BD-40 Braidwood Station Cooling Lake 400 -

300

.' 200 100 0 I I I I I 07-20-06 01-15-08 07-12-09 01-07-11 07-04-12 12-30-13 C-28

FIGURE C-6 Surface Water - Tritium - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2013 BD-55 North Pond Fatlan Site 250 200 150 +

100 50 +

I 04 03-29-07 08-04-08 12-11-09 04-19-11 08-25-12 01-01-14 BD-56 South Pond Fatlan Site 250 T 200 "

150

-J 100 +

50 +

0 -

03-29-07 08-04-08 12-11-09 04-19-11 08-25-12 01-01-14 C-29

FIGURE C-7 Public Water - Gross Beta - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2013 BD-22 Wilmington 10.0 8.0 6.0 CL 4.0 2.0 0.0 4--

01-29-00 11-11-02 08-24-05 06-06-08 03-20-11 12-31-13 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 - 2013 BD-22 Wilmington 7600 7200 6800 6400 6000 5600 5200 4800 4400

-J 4000 C.)

0.

3600 3200 2800 2400 2000 1600 1200 800 400 0

01-29-00 11-11-02 08-24-05 06-06-08 03-20-11 12-31-13 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 - 2013 BD-13 Braidwood City Hall Well 500 400 300

-J U) 200 100 0 I 01-07-00 10-24-02 08-10-05 05-27-08 03-14-11 12-29-13 BD-34 Gibson Well 700 600 500

-J 400 0) a.

300 200 owNcpwcý 100 0 -

01-07-00 10-24-02 08-10-05 05-27-08 03-14-11 12-29-13 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 - 2013 BD-35 Joly Well 500 400 300 C..

a.

200 100 o04-01-07-00 10-24-02 08-10-05 05-27-08 03-14-11 12-29-13 BD-36 Hutton Well 1200 1000 800

-j Z) 600 C.

400 200 0 1 01-07-00 10-24-02 08-10-05 05-27-08 03-14-11 12-29-13 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 - 2013 BD-37 Nurczyk Well 600 500 400

.-J C, 300 200 100 01 -0 01-07-00 10-24-02 08-10-05 05-27-08 03-14-11 12-29-13 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 - 2013 BD-50 Skole Well 1000 900 800 700 600 C.)

500 0.

400 300 200 100 0

01-01-07 05-26-08 10-19-09 03-14-11 08-06-12 12-30-13 BD-51 Fatlan Well 600 +

500 4.

400 +

C.)

0. 300 +

200 100 0 4-01-03-07 05-28-08 10-21-09 03-16-11 08-08-12 01-01-14 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 - 2013 BD-53 Phelps Well 600 500 400

.J 0 300 200 100 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 C.,

0. 300 200 100 0

01-03-07 05-28-08 10-21-09 03-16-11 08-08-12 01-01-14 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 - 2013 BD-03 (C) County Line Road 80.0 60.0 E

C.)

0. 40.0 20.0

'0.0 I 01-07-00 10-25-02 08-12-05 05-30-08 03-18-11 01-03-14 BD-06 Godley 60.0 50.0 40.0

5 CL C.) 30.0 9

LiJ 0

0 20.0 10.0 0.0 I 01-07-00 10-25-02 08-12-05 05-30-08 03-18-11 01-03-14 C-37

FIGURE C-15 Air Particulate - Gross Beta- Stations BD-19 and BD-20 Collected in the Vicinity of Braidwood Station, 2000 - 2013 BD-19 Nearsite, NW 60.0 50.0 40.0 E

" 30.0 20.0 10.0 0.0 I---

01-07-00 10-25-02 08-12-05 05-30-08 03-18-11 01-03-14 BD-20 Nearsite, N 70.0 60.0 50.0 40.0 0.

0. 30.0 0

20.0 10.0 0.0 i 01-07-00 10-25-02 08-12-05 05-30-08 03-18-11 01-03-14 C-38

FIGURE C-16 Air Particulate - Gross Beta- Station BD-21 Collected in the Vicinity of Braidwood Station, 2000 - 2013 BD-21 Nearsite, NE 70.0 60.0 50.0 E

i3 40.0 m 30.0 w" 20.0 10.0 0.0 -

01-07-00 10-25-02 08-12-05 05-30-08 03-18-11 01-03-14 C-39

FIGURE C-17 Air Particulate - Gross Beta- Stations BD-02 and BD-04 Collected in the Vicinity of Braidwood Station, 2005 - 2013 BD-02 Nearsite, NW 60.0 50.0 c3 40.0 E

6

0. 30.0 o 20.0 10.0 0.0 4-07-07-05 03-19-07 11-28-08 08-10-10 04-21-12 01-01-14 BD-04 Nearsite, N 60.0 50.0 E 40.0 03 30.0 CL1 0 20.0 10.0 0.0 -

07-07-05 03-19-07 11-28-08 08-10-10 04-21-12 01-01-14 C-40

FIGURE C-18 Air Particulate - Gross Beta- Station BD-05 Collected in the Vicinity of Braidwood Station, 2005 - 2013 BD-05 Nearsite, NE 60.0 50.0 40.0 E

G

0. 30.0 9

LU 20.0 10.0 0.0 I 07-07-05 03-19-07 11-28-08 08-10-10 04-21-12 01-01-14 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, 2013 (PAGE 1 OF 3)

Identification Reported Known Ratio (c)

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

March 2013 E10477 Milk Sr-89 pCi/L 120 99.7 1.20 Sr-90 pCi/L 9.21 11.0 0.84 E10478 Milk 1-131 pCi/L 87.1 100 0.87 Ce-141 pCi/L 186 187 0.99 Cr-51 pCi/L 463 472 0.98 Cs-134 pCi/L 201 214 0.94 Cs-137 pCi/L 262 266 0.98 Co-58 pCi/L 200 208 0.96 Mn-54 pCi/L 215 208 1.03 Fe-59 pCi/L 266 252 1.06 Zn-65 pCi/L 311 301 1.03 Co-60 pCi/L 384 400 0.96 E10480 AP Ce-141 pCi 95.3 95.6 1.00 Cr-51 pCi 264 241 1.10 Cs-13'4 pCi 123 109 1.13 Cs-137 pCi 142 136 1.04 Co-58 pCi 112 106 1.06 Mn-54 pCi 115 106 1.08 Fe-59 pCi 139 129 1.08 Zn-65 pCi 163 153 1.07 Co-60 pCi 212 204 1.04 E10479 Charcoal 1-131 pCi 90.1 92.6 0.97 E 10481 Water Fe-55 pCi/L 1840 1890 0.97 A June 2013 E10564 Milk Sr-89 pCi/L 110 95.0 1.16 A Sr-90 pCi/L 15.8 17.0 0.93 A E10545 Milk 1-131 pCi/L 92.6 95.5 0.97 A Ce-141 pCi/L 83.1 90.4 0.92 A Cr-51 pCi/L 253 250 1.01 A Cs-134 pCi/L 118 125 0.94 A Cs-137 pCi/L 143 151 0.95 A Co-58 pCi/L 87.1 94.0 0.93 A Mn-54 pCi/L 171 172 0.99 A Fe-59 pCi/L 125 120 1.04 A Zn-65 pCi/L 220 217 1.01 A Co-60 pCi/L 169 175 0.97 A E10547 AP Ce-141 pCi 56.8 56.7 1.00 A Cr-51 pCi 168 157 1.07 A Cs-134 pCi 85.2 78.4 1.09 A Cs-137 pCi 101 94.6 1.07 A Co-58 pCi 62.7 58.9 1.06 A Mn-54 pCi 125 108 1.16 A Fe-59 pCi 85.7 75.0 1.14 A Zn-65 pCi 169 136 1.24 W Co-60 pCi 116 110 1.05 A E10546 Charcoal 1-131 pCi 86.5 89.7 0.96 A D-I

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

Identification Reported Known Ratio (c)

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

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

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

E10647 Milk 1-131 pCi/L 93.9 98.3 0.96 A Ce-141 pCi/L NA (2)

Cr-51 pCi/L 272 277 0.98 A Cs-134 pCi/L 150 172 0.87 A Cs-1 37 pCi/L 125 131 0.95 A Co-58 pCi/L 105 108 0.97 A Mn-54 pCi/L 138 139 0.99 A Fe-59 pCi/L 125 130 0.96 A Zn-65 pCi/L 264 266 0.99 A Co-60 pCi/L 187 196 0.95 A E10672 AP Ce-141 pCi NA (2)

Cr-51 pCi 208 223 0.93 A Cs-1 34 pCi 143 139 1.03 A Cs-137 pCi 106 105 1.01 A Co-58 pCi 97.0 86.5 1.12 A Mn-54 pCi 116 112 1.04 A Fe-59 pCi 98.6 105 0.94 A Zn-65 pCi 219 214 1.02 A Co-60 pCi 166 158 1.05 A E10648 Charcoal 1-131 pCi 76.3 71.7 1.06 A E10673 Water Fe-55 pCi/L 1790 1690 1.06 A December2013 E10774 Milk Sr-89 pCi/L 97.3 93.8 1.04 Sr-90 pCi/L 13.3 12.9 1.03 E10775 Milk 1-131 pCi/L 89.7 96.1 0.93 Ce-141 pCi/L 99.8 110 0.91 Cr-51 pCi/L 297 297 1.00 Cs-134 pCi/L 129 142 0.91 Cs-137 pCi/L 126 126 1.00 Co-58 pCi/L 116 112 1.04 Mn-54 pCi/L 167 168 0.99 Fe-59 pCi/L 117 110 1.06 Zn-65 pCi/L 757 741 1.02 Co-60 pCi/L 141 147 0.96 E10777 AP Ce-141 pCi 85.1 88.0 0.97 Cr-51 pCi 278 238 1.17 Cs-134 pCi 123 114 1.08 Cs-137 pCi 102 101 1.01 Co-58 pCi 84.4 89.9 0.94 Mn-54 pCi 132 135 0.98 Fe-59 pCi 101 88.3 1.14 Zn-65 pCi 506 595 0.85 Co-60 pCi 118 118 1.00 D-2

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

Identification Reported Known Ratio (c)

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

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

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

(c) Ratio of Teledyne Brown Engineeringto Analytics results.

(d) Analytics evaluation basedon TBE internal QC limits: A= Acceptable, reportedresult falls within ratio limits of 0.80-1.20.

W-Acceptable with warning, reportedresult falls within 0. 70-0.80 or 1.20-1.30. N = Not Acceptable, reported result falls outside the ratio limits of < 0. 70 and > 1.30.

D-3

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

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

May 2013 RAD-93 Water Sr-89 pCi/L 48.3 41.3 31.6 - 48.4 A Sr-90 pCi/L 19.3 23.9 17.2 -28.0 A Ba-133 pCi/L 81.9 82.1 69.0 - 90.3 A Cs-134 pCi/L 40.9 42.8 34.2-47.1 A Cs-137 pCi/L 44.0 41.7 37.0 -48.8 A Co-60 pCi/L 61.9 65.9 59.3 - 75.0 A Zn-65 pCi/L 202 189 170-222 A Gr-A pCi/L 34.2 40.8 21.1 -51.9 A Gr-B pCi/L 18.0 21.6 13.0-29.7 A 1-131 pCi/L 23.8 23.8 19.7 -28.3 A U-Nat pCi/L 60.4 61.2 49.8 - 67.9 A H-3 pCi/L 3970 4050 3450 - 4460 A MRAD-18 Filter Gr-A pCi/filter Lost during processing November 2013 RAD-95 Water Sr-89 pCi/L 25.5 21.9 14.4 - 28.2 A j

Sr-90 pCi/L 14.3 18.1 12.8 -21.5 A Ba-133 pCi/L 57.2 54.2 44.7 - 59.9 A Cs-1 34 pCi/L 83.3 86.7 71.1 -95.4 A Cs-137 pCi/L 201 206 185 - 228 A Co-60 pCi/L 104 102 91.8-114 A Zn-65 pCi/L 361 333 300 - 389 A Gr-A pCi/L 29.5 42.8 22.2 - 54.3 A Gr-B pCi/L 30.1 32.2 20.8 - 39.9 A 1-131 pCi/L 23.1 23.6 19.6 - 28.0 A U-Nat pCi/L 5.53 6.24 47.0 - 7.44 A H-3 pCi/L 17650 17700 15500 - 19500 A MRAD-19 Filter Gr-A pCi/filter 33.0 83.0 27.8- 129 A (a) Teledyne Brown Engineeringreported result.

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

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

D-4

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

TELEDYNE BROWN ENGINEERING, 2013 (PAGE 1 OF 2)

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

March 2013 13-MaW28 Water Cs-134 Bq/L 21.0 24.4 17.1-31.7 A Cs-1 37 Bq/L 0.0446 (1) A Co-57 Bq/L 28.3 30.9 21.6-40.2 A Co-60 Bq/L 18.2 19.56 13.69 - 25.43 A H-3 Bq/L 506 507 355-659 A Mn-54 Blq/L 25.7 27.4 19.2 - 35.6 A K-40 Bq/L 2.09 (1) A Sr-90 Bq/L 10.5 10.5 7.4-13.7 A Zn-65 Bq/L 29.2 30.4 21.3-39.5 A 13-GrW28 Water Gr-A Bq/L 2.74 2.31 0.69 - 3.93 A Gr-B Bq/L 15.6 13.0 6.5- 19.5 A 13-MaS28 Soil Cs-1 34 Bq/kg 859 887 621 - 1153 A Cs-1 37 Bq/kg 633 587 411 -763 A Co-57 Bq/kg 0.256 (1) A Co-60 Bq/kg 738 691 484 - 898 A Mn-54 Bqikg 0.671 (1) A K-40 Bq/kg 714 625.3 437.7 - 812.9 A Sr-90 Bq/kg 442 628 440-816 W Zn-65 Bq/kg 1057 995 697- 1294 A 13-RdF28 AP Cs-1 34 Bq/sample 1.73 1.78 1.25-2.31 A Cs-137 Bq/sample 2.73 2.60 1.82 - 3.38 A Co-57 Bq/sample 2.38 2.36 1.65 - 3.07 A Co-60 Bq/sample 0.0302 (1) A Mn-54 Bq/sample 4.36 4.26 2.98 - 5.54 A Sr-90 Bq/sample 1.43 1.49 1.04-1.94 A Zn-65 Bq/sample 3.14 3.13 2.19-4.07 A 13-GrF28 AP Gr-A Bq/sample 0.767 1.20 0.36 - 2.04 A Gr-B Bq/sample 0.871 0.85 0.43 - 1.28 A 13-RdV28 Vegetation Cs-134 Bq/sample -0.197 (1) A Cs-1 37 Bq/sample 7.39 6.87 4.81 -8.93 A Co-57 Bq/sample 9.87 8.68 6.08- 11.28 A Co-60 Bq/sample 6.08 5.85 4.10 -7.61 A Mn-54 Bq/sample -0.0104 (1) A Sr-90 Bq/sample 1.28 1.64 1.15-2.13 W Zn-65 Bq/sample 6.84 6.25 4.38-8.13 A September 2013 13-MaW29 Water Cs-1 34 Bq/L 29.1 30.0 21.0-39.0 A Cs-137 Bq/L 34.5 31.6 22.1 -41.1 A Co-57 Bq/L 0.0358 (1) A Co-60 Bq/L 24.6 23.58 16.51 - 30.65 A H-3 Bq/L 2.45 (1) A Mn-54 Bq/L 0.0337 (1) A K-40 Bq/L 0,193 (1) A Sr-90 Bq/L 9.12 7.22 5.05-9.39 W Zn-65 Bq/L 38.1 34.6 24.2 -45.0 A 13-GrW29 Water Gr-A Bq/L 1.13 0.701 0.210 - 1.192 A Gr-B Bq/L 7.61 5.94 2.97 - 8.91 A D-5

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

TELEDYNE BROWN ENGINEERING, 2013 (PAGE 2 OF 2)

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

September 2013 13-MaS29 Soil Cs-134 Bq/kg 1150 1172 820-1524 A Cs-137 Bq/kg 1100 977 684-1270 A Co-57 Bq/kg 670 (1) N (2)

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

Zn-65 Bq/kg 210 (1) N (2) 13-RdF29 AP Cs-1 34 Bq/sample -0.570 (1) N (2)

Cs-137 Bq/sample 2.85 2.7 1.9-3.5 A Co-57 Bq/sample 3.30 3.4 2.4 -4.4 A Co-60 Bq/sample 2.41 2.3 1.6- 3.0 A Mn-54 Bq/sample 3.65 3.5 2.5-4.6 A Sr-90 Bq/sample 1.40 1.81 1.27 -2.35 W Zn-65 Bq/sample 2.90 2.7 1.9-3.5 A 13-GrF29 AP Gr-A Bq/sample 0.872 0.9 0.3-1.5 A Gr-B Bq/sample 1.57 1.63 0.82-2.45 A 13-RdV29 Vegetation Cs-134 Bq/sample 5.29 5.20 3.64 - 6.76 A Cs-1 37 Bq/sample 7.48 6.60 4.62 - 8.58 A Co-57 Bq/sample 0.0129 (1) A Co-60 Bq/sample 0.0523 (1) A Mn-54 Bq/sample 8.78 7.88 5.52 - 10.24 A Sr-90 Bq/sample 1.63 2.32 1.62-3.02 W (2)

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

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

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

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

D-6

TABLE D-4 ERA (a) STATISTICAL

SUMMARY

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result (b) Result (c) Limits Acceptance ERW-1593 04/08/13 Sr-89 43.6 +/- 4.3 41.30 31.6 -48.4 Pass ERW-1593 04/08/13 Sr-90 23.2 +/- 1.7 23.90 17.2 -28.0 Pass ERW-1596 04/08/13 Ba-133 74.80 4.00 82.10 69.00 90.30 Pass ERW-1596 04/08/13 Co-60 65.50 3.42 65.90 59.30 75.00 Pass ERW-1 596 04/08/13 Cs-1 34 41.10 3.47 42.80 34.20 47.10 Pass ERW-1596 04/08/13 Cs-1 37 42.30 4.03 41.70 37.00 48.80 Pass ERW-1 596 04/08/13 Zn-65 200.3 +/- 10.1 189.0 170.0 - 222.0 Pass ERW-1 598 04/08/13 Gr. Alpha 34.30 1.98 40.80 21.10 51.90 Pass ERW-1 598 04/08/13 Gr. Beta 18.70 0.98 21.60 13.00 29.70 Pass ERW-1600 04/08/13 1-131 23.00 +/- 1.10 23.80 19.70 -28.30 Pass ERW-1600 04/08/13 1-131(G) 23.48 +/- 9.44 23.80 19.70 +/- 28.30 Pass ERW-1606 04/08/13 H-3 4041 +/- 194 4050 3450 - 4460 Pass ERW-6009 10/07/13 Sr-89 22.00 2.80 21.90 14.40 28.20 Pass ERW-6009 10/07/13 Sr-90 17.10 2.55 18.10 12.80 21.50 Pass ERW-6012 10/07/13 Ba-133 48.20 4.29 54.20 44.70 59.90 Pass ERW-6012 10/07/13 Co-60 100.8 +/- 4.7 102.0 91.8-114.0 Pass ERW-6012 10/07/13 Cs-134 87.30 4.35 86.70 71.10 95.40 Pass ERW-6012 10/07/13 Cs-137 199.6 +/- 7.4 206.0 185.0 - 228.0 Pass ERW-6012 10/07/13 Zn-65 356.2 +/- 13.2 333.0 300.0 - 389.0 Pass ERW-6015 10/07/13 Gr. Alpha 30.70 11.90 42.80 22.20 54.30 Pass ERW-6015 10/07/13 Gr. Beta 25.70 6.48 32.20 20.80 39.90 Pass ERW-6019 10/07/13 1-131 22.50 1.01 23.60 19.60 28.00 Pass ERW-6024 10/07/13 H-3 18397 695 17700 15500 19500 Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

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

D-7

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

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

Concentration (a)

Known Control Lab Code (b) Date Analysis Laboratory result Activity Limits (c) Acceptance MAAP-738 02/01/13 Co-57 2.58 +/- 0.06 2.36 1.65 - 3.07 Pass MAAP-738 02/01/13 Co-60 0.01 +/- 0.03 0.00 0.00 -0.10 Pass MAAP-738 02/01/13 Cs-1 34 1.82 +/- 0.13 1.78 1.25 -2.31 Pass MAAP-738 02/01/13 Cs-137 2.93 +/- 0.10 2.60 1.82 -3.38 Pass MAAP-738 02/01/13 Mn-54 4.87 +/- 0.13 4.26 2.98 - 5.54 Pass MAAP-738 02/01/13 Sr-90 1.39 +/- 0.14 1.49 1.04-1.94 Pass MAAP-738 02/01113 Zn-65 3.84 +/- 0.20 3.13 2.19 -4.07 Pass MAAP-738 d 02/01/13 Gr. Alpha 0.14 +/- 0.03 1.20 0.36 -2.04 Fail (1)

MAAP-738 02/01/13 Gr. Beta 0.93 +/- 0.06 0.85 0.43 - 1.28 Pass MAW-806 02/01/13 Co-57 31.20 0.40 30.90 21.60 40.20 Pass MAW-806 02/01/13 Co-60 19.70 +/- 0.30 16.56 13.69 - 25.43 Pass MAW-806 02/01/13 Cs-134 23.20 +/- 0.50 24.40 17.10 - 31.70 Pass MAW-806 02/01/13 Cs-137 0.03 +/- 0.12 0.00 0.00 -1.00 Pass MAW-806 02/01/13 Fe-55 34.00 +/- 3.30 44.00 30.80 - 57.20 Pass MAW-806 02/01/13 H-3 511.60 +/- 12.50 507.00 355.00 - 659.00 Pass MAW-806 02/01/13 K-40 2.20 +/- 0.90 0.00 0.00 - 5.00 Pass MAW-806 02/01/13 Mn-54 27.60 +/- 0.50 27.40 19.20 - 35.60 Pass MAW-806 02/01/13 Sr-90 9.30 +/- 0.80 10.50 7.40 - 13.70 Pass MAW-806 02/01/13 Zn-65 31.60 +/- 0.80 30.40 21.30 -39.50 Pass MAW-811 02/01/13 Gr. Alpha 1.87 +/- 0.09 2.31 0.69 - 3.93 Pass MAW-811 02/01/13 Gr. Beta 13.04 +/- 0.13 13.00 6.50 -19.50 Pass MASO-739 02101/13 Co-57 0.60 +/- 0.50 0.00 0.00 - 5.00 Pass MASO-739 02/01/13 Co-60 739.20 +/- 28.50 691.00 484.00 - 898.00 Pass MASO-739 02/01/13 Cs-1 34 863.30 +/- 34.10 887.00 621.00 - 1153.00 Pass MASO-739 02/01/13 Cs-1 37 661.80 +/- 25.70 587.00 411.00 - 763.00 Pass MASO-739 02/01/13 K-40 745.80 +/- 33.30 625.30 437.70 - 812.90 Pass MASO-739 02/01/13 Mn-54 1.10 +/- 1.00 0.00 0.00 - 5.00 Pass MASO-739 02/01/13 Zn-65 1109.60 +/-44.10 995.00 697.00 - 1294.00 Pass MASO-744 e 02/01/13 Sr-90 408.40 +/- 14.00 628.00 440.00 - 816.00 Fail (2)

MAVE-747 02/01/13 Co-57 10.37 +/- 0.17 8.68 6.08-11.28 Pass MAVE-747 02/01/13 Co-60 6.48 +/- 0.17 5.85 4.10 -7.61 Pass MAVE-747 02/01/13 Cs-134 0.02 +/- 0.04 0.00 0.00 -0.10 Pass MAVE-747 02/01/13 Cs-1 37 7.79 +/- 0.21 6.87 4.81 - 8.93 Pass MAVE-747 02/01/13 Mn-54 0.00 +/- 0.05 0.00 0.00 -0.10 Pass MAVE-747 02/01/13 Zn-65 7.29 +/- 0.33 6.25 4.38 -8.13 Pass MASO-5043 f 08/01/13 Co-57 699.60 +/- 3.90 0.00 0.00 - 5.00 Fail (3)

MASO-5043 08/01/13 Cs-134 1191.70 +/- 23.00 1172.00 820.00 - 1524.00 Pass MASO-5043 08/01/13 Cs-1 37 1072.00 +/- 5.10 977.00 684.00 - 1270.00 Pass MASO-5043 08/01/13 K-40 760.00 +/- 16.20 633.00 443.00 - 823.00 Pass MASO-5043 08/01/13 Mn-54 753.80 +/- 4.90 674.00 472.000 - 876.000 Pass D-8

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

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

Concentration (a)

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

b Laboratory codes as follows: MAW (water), MAAP (air filter), MASO (soil), MAVE (vegetation).

c MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". MAPEP does not provide control limits.

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

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

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

D-9

Intentionally left blank APPENDIX E EFFLUENT DATA

Intentionally left blank TABLE OF CONTENTS INT R O D UC T IO N ................................................................................................................. 1 S UMMA RY ........................................................................................................................... 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 ................................................................................ 7

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, 1-131, 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 2013 gaseous dose was vegetation. The critical pathway for 2013 liquid dose was potable water.

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 individual's total body dose due to gaseous and liquid emissions from licensed activities at Braidwood Station is 6.06E-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 1.25E+00 curies of fission and activation gases were released with a maximum quarterly average release rate of 4.59E-02 pCi/sec for Unit 1 and 4.59E-02 pCi/sec for Unit 2.

A total of 8.98E-04 curies of radioiodine were released during the year with a maximum average quarterly release rate of 6.77E-05 pCi/sec for Unit 1 and 4.50E-05 pCi/sec for Unit 2.

A total of 1.72E-04 curies'of beta-gamma emitters were released as airborne particulate matter with a maximum average release rate of

<LLD pCi/sec for Unit 1 and 1.77E-05 pCi/sec for Unit 2.

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

A total of 4.04E+02 curies of tritium were released with a maximum average quarterly release rate of 7.20E+00 pCi/sec for Unit 1 and 1.07E+01 pCi/sec for Unit 2.

A total of 8.48E+00 curies of C-14 was released with a maximum average quarterly release rate of 1.41 E-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 3.72E+06 liters of radioactive liquid wastes (prior to dilution) containing 1.60E-01 curies (excluding tritium, noble gases and alpha) were discharged from the station. These wastes were released at a maximum quarterly diluted average concentration of 1.32E-08 pCi/ml.

Alpha-emitting radionuclides were less than the LLD for the year. A total of 4.08E+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 2013 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 5.47E-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 4.31 E-01 mrem (Table 3.4-1). The maximum gamma air dose was 2.31 E-05 mrad (Table 3.1-1) based on measured effluents and average meteorological data and 2.98E-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 2

the skin is taken to have a thickness of 7.0 mg/cm and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year was 4.44E-05 mrem based on concurrent meteorological data (Table 3.4-1).

4

The maximum offsite beta air dose for the year was 1.14E-05 mrad (Table 3.1-1) based on measured effluents and average meteorological data and 4.76E-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. 1-131 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 inrterest 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 2.27E+00 mrem (child/bone) based on measured effluents and average meteorological data and 1.81 E+00 mrem based on concurrent meteorological data.

The maximum dose from radioactive iodine and particulate (including C-14) to the whole body was 5.47E-01 mrem (child) based on measured effluents and average meteorological data and 4.31 E-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 for the year was 5.92E-02 mrem and no organ dose exceeded 1.61 E-01 mrem (Table 3.2-1 [adult]).

3.3 Assessment of Dose to Member of Public During the period January to December, 2013, 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.

6

4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix E. 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 2013.

7

Intentionally left blank APPENDIX E-1 DATA TABLES AND FIGURES

Intentionally left blank Table 1.1-1 BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2013 GAS RELEASES UNIT 1 (Docket Number 50-456)

SUMMATION OF ALL RELEASES Units 1st Qtr 2nd Qtr II 3rd Qtr 4th Qtr Est. Total III Error% I A. Fission and activation qas releases

1. Total Release Activity Ci 6.82E-04 1.98E-01 3.65E-01 6.38E-02 7.59E+00

2. Average Release Rate pCi/sec 8.77E-05 2.52E-02 4.59E-02 8.03E-03

3. Percent of ODCM Limit - gamma % 1.09E-07 3.30E-05 1.23E-04 7.56E-05

4. Percent of ODCM Limit - beta % 2.64E-07 7.79E-05 1.75E-04 4.72E-05 B. Iodine Releases

1. Total Iodine Ci 2.43E-07 5.36E-07 5.38E-04 2.62E-07 3.32E+01

2. Average Release Rate .tCi/sec 3.13E-08 6.82E-08 6.77E-05 3.30E-08

3. Percent of ODCM Limit % 1.74E-06 2.87E-06 3.18E-04 1.12E-06 C. Particulate (> 8 Day Half-Life) Release

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

2. Average Release Rate

3. Percent of ODCM Limit jCi/sec

<LLD N/A

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

1. Total Release Activity Ci 5.60E+01 3.08E+01 4.81E+01 4.72E+00 8.07E+00

2. Average Release Rate pCi/sec 7.20E+00 3.92E+00 6.05E+00 5.94E-01

3. Percent of ODCM Limit % 1.59E-01 8.75E-02 1.38E-01 1.34E-02 E. Gross Alpha Releases

1. Total Rele ase Activity Ci <LLD <LLD <LLD <LLD 1.98E+01

2. Average Release Rate

3. Percent of ODCM limit *1~

pCi/sec <LLD N/A

<LLD N/A

<LLD N/A F. Carbon-14 Releases

11. Total ReleaseActivity I Ci 11. 1OE+0001.11E +001 8.64E-0. 1 E+00

2. Average Release Rate gCi/sec 1.41E-01 1.41E-01 1.09E-01 1.40E-01 E-1.1

Table 1.1-1 (cont)

BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2013 GAS RELEASES UNIT 2 (Docket Number 50-457)

SUMMATION OF ALL RELEASES Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr EstTError%

A. Fission and Activation Gas Releases

1. Total Activity Released Ci 6.82E-04 1.98E-01 3.65E-01 6.38E-02 I7.59E+00 I

2. Average Release Rate PCi/sec 8.77E-05 2.52E-02 4.59E-02 8.03E-03

3. Percent of ODCM Limit - gamma % 1.09E-07 3.30E-05 1.23E-04 7.56E-05

4. Percent of ODCM Limit - beta % 2.64E-07 7.79E-05 1.75E-04 4.72E-05 B. Iodine Releases

1. Total Iodine Ci <LLD 9.08E-07 3.58E-04 <LLD 3.32E+01

2. Average Release Rate [tCi/sec <LLD 1.16E-07 4.50E-05 <LLD

3. Percent of ODCM Limit % N/A 2.15E-06 1.39E-04 N/A C. Particulate (> 8 Day Half-Life) Release

1. Particulates with half-lives > 8 days Ci <LLD 1.95E-05 1.42E-04 1.06E-05 1.98E+01

2. Average Release Rate gtCi/sec <LLD 2.48E-06 1.77E-05 1.33E-06

3. Percent of OCDM Limit % N/A 2.32E-06 1.96E-02 5.01E-07

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

1. Total Release Activity Ci 8.31E+01 8.18E+01 6.83E+01 3.14E+01 8.07E+00

2. Average Release Rate ptCi/sec 1.07E+01 1.04E+01 8.59E+00 3.95E+00

3. Percent of ODCM Limit % 2.37E-01 2.32E-01 1.94E-01 8.92E-02 E. Gross Alpha Releases

1. Total Rele ase Activity Ci <LLD <LLD <LLD <LLD 1.98E+01

2. Average Release Rate

3. Percent of ODCM Limit pCi/sec <LLD N/A

<LLD N/A

<LLD N/A I F. Carbon-14 Releases

11. Total Release Activity Ci I 1.10E+00 1.05E+00 1.03E+00 1.12E+00I

2. Average Release Rate ptCi/sec 1.41E-01 1.34E-01 1.30E-01 1.41E-01 E-1.2

Table 1.2-1 BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2013 LIQUID RELEASES UNIT 1 (Docket Number 50-456)

SUMMATION OF ALL RELEASES U its Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr t EsQTotal Iro A. Fission and Activation Products

1. Total Release (not including Dissolved Noble Gases, or Alp] 2.56E-04 1.67E-03 6.07E-02 1.72E-02 2.64E+00 e Diluted Concentration 4,74E-11 3.52E-10 1.32E-08 4.13E-09

I ~ I B. Tritium

1. Total Release Ci 1.88E+02 3.29E+02 1.23E+03 2.91E+02 I5.85E+00 I

2. Average Diluted Concentration jiCi/ml 3.49E-05 6.94E-05 2.67E-04 6.99E-05

3. % of Limit (1E-2 p.Ci/ml) % 3.49E-01 6.94E-01 2.67E+00 6.99E-01 C. Dissolved Noble Gases

1. Total Release Ci O.OOE+00 O.00E+00 1.42E-05 O.OOE+00 2.64E+00

2. Average Diluted Concentration ] tCi/mI 0.OOE+00 0.OOE+00 3.08E-12 0.00E+00

3. % of Limit (2E-4 jiCi/ml) % 0.OOE+00 0.OOE+00 1.54E-06 0.OOE+00 D. Gross Alpha

11. Total Release Ci 0.00E+0 0000E+00 0.0OE+00 I.00E+001 I47E+01 E. Volume of Waste Released liters 4.86E+05 8.78E+05 1.61E+ E (prior to dilution)

IF. Volume of Dilution Water I liters 11.08E+10 9.46E+09 9.22E+09 8.33E+09I

This limit is equal to 10 times the concentration values in Appendix B, Table 2, Column 2 to 1 OCFR20.1001-20.2402.

E-i.3

Table 1.1-1 (cont)

BRAIDWOOD NUCLEAR POWER STATION ANNUAL EFFLUENT REPORT FOR 2013 GAS RELEASES UNIT 2 (Docket Number 50-457)

SUMMATION OF ALL RELEASES Units 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr EstTError%

A. Fission and Activation Gas Releases

1. Total Activity Released Ci 6.82E-04 1.98E-01 3.65E-01 6.38E-02 7.59E+00

2. Average Release Rate p.Ci/sec 8.77E-05 2.52E-02 4.59E-02 8.03E-03

3. Percent of ODCM Limit - gamma % 1.09E-07 3.30E-05 1.23E-04 7.56E-05

4. Percent of ODCM Limit - beta % 2.64E-07 7.79E-05 1.75E-04 4.72E-05 B. Iodine Releases

1. Total Iodine

2. Average Release Rate

3. Percent of ODCM Limit I-Ci

ýtiCi/sec

~1~

<LLD

<LLD N/A 9.08E-07 3.58E-04 1.16 E-07 4.50E-05 2.15E-06 1.39E-04

<LLD

<LLD N/A I3.32 I C. Particulate (> 8 day half-life) Releases

1. Particulates with half-lives > 8 days Ci <LLD 1.95E-05 1.42E-04 1.06E-05 11.98E+01 1

2. Average Release Rate iCi/sec <LLD 2.48E-06 1.77E-05 1.33E-06

3. Percent of OCDM Limit % N/A 2.32E-06 1.96E-02 5.01E-07

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

1. Total Release Activity Ci 8.31E+01 8.18E+01 6.83E+01 3.14E+01 8.07E+00

2. Average Release Rate jCi/sec 1.07E+01 1.04E+01 8.59E+00 3.95E+00

3. Percent of ODCM Limit % 2.37E-01 2.32E-01 1.94E-01 8.92E-02 E. Gross Alpha Releases

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

2. Average Release Rate

3. Percent of ODCM Lim it ptCi/sec

-- i

<LLD N/A I

<LLD N/A

<LLD N/A I F. Carbon-14 Releases

1. Total Release Activity I Ci I1.1E00 ,1.05E+0011.03E+00 1.12E+00O

2. Average Release Rate iCi/sec 1.41E-01 1.34E-01 1.30E-01 1.41E-01 E-I.4

Table 3.1-1 GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ............. 1 All Gas Release Types Period Start Date .... .. 01/01/2013 00:00 Period End Date ...... :.01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 1

=== RELEASE DATA Total Release Duration (minutes) ...................................... 5.547E+05 Total Release Volume (cf) ............................................. 7.910E+10 Average Release Flowrate (cfm) ........................................ 1.426E+05 Average Period Flowrate (cfm) ......................................... 1.505E+05

== NUCLIDE DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC AR-41 1. 85E+04 8.28E-12 8.28E-04 1 . OOE-08 KR-85M 2. 95E+03 1.32E-12 1.32E-05 1. OOE-07 KR-87 0. OOE+00 0.OOE+00 0.OOE+00 2 . OOE-08 XE-133M 6. 18E+03 2.76E-12 4.60E-06 6. OOE-07 KR-89 0. OOE+00 0.OOE+00 0.OOE+00 1 . OOE-09 KR-88 8. 32E+01 3.71E-14 4.13E-06 9. OOE-09 XE-131M 0. OOE+00 0.00E+00 0.OOE+00 2.OOE-06 XE-135 7 .76E+04 3.46E-11 4.95E-04 7 . O0E-08 XE-133 5.22E+05 2.33E-10 4. 66E-04 5. OOE-07 F&AG 6. 27E+05 2.80E-10 1.81E-03 1-131 1. 50E+01 6. 69E-15 3 . 35E-05 2 . ODE-10 1-132 5. 17E+02 2.31E-13 1. 15E-05 2 . DOE-08 1-133 7.72E+00 3.45E-15 3. 45E-06 1. OOE-09 1-135 3.22E-02 1.44E-17 2. 39E-09 6. OOE-09 Iodine 5. 39E+02 2.41E-13 4 .85E-05 C-14 4.18E+06 1.87E-09 6. 22E-01 3. OOE-09 Other 4.18E+06 1.87E-09 6. 22E-01 H-3 1. 40E+08 6.23E-08 6.23E-01 1 . OOE-07 H-3 1. 40E+08 6. 23E-08 6. 23E-01 Total 1.44E+08 6.45E-08 1.25E+00 E-I.5

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ............. 1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... :.01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 1 Receptor ............... 5 Composite Crit. Receptor - IP Distance (meters) .... :.610 Compass Point ........ :.0.0 PERIOD DOSE BY AGEGROUP, PATHWAY, ORGAN (mrem)

Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AGPD 4.79E-07 4 .79E-07 4 .79E-07 4.79E-07 4.79E-07 4.79E-07 0. OOE+00 4 .79E-07 AINHL 2.80E-03 4.22E-03 4.23E-03 4.22E-03 4.22E-03 4.22E-03 0. OOE+00 4 .22E-03 AVEG 1. 38E-01 3 .42E-02 3. 45E-02 3. 42E-02 3 .42E-02 3.42E-02 0. OOE+00 3. 42E-02 AGMILK 4 . 14E-03 5.40E-03 6. 70E-03 5.40E-03 5.39E-03 5. 39E-03 0. OOE+00 5.39E-03 ACMEAT 5. 13E-02 1.12E-02 1. 12E-02 1. 12E-02 1.12E-02 1. 12E-02 0. 00E+00 1. 12E-02 ACMILK 5.59E-02 1.34E-02 1.45E-02 1.34E-02 1.34E-02 1. 34E-02 0.OOE+00 1.34E-02 TGPD 4 .79E-07 4 .79E-07 4.79E-07 4 .79E-07 4 .79E-07 4 .79E-07 0 . OOE+00 4 .79E-07 TINHL 4 . OOE-03 4.47E-03 4.49E-03 4 .47E-03 4.47E-03 4.47E-03 0. OOE++/-0 4 47E-03 TVEG 2.23E-01 5.24E-02 5.26E-02 5.24E-02 5.24E-02 5.24E-02 0. OOE+00 5.24E-02 TGMILK 7.49E-03 7.44E-03 9. 49E-03 7.44E-03 7.43E-03 7.43E-03 0. OOE+00 7.43E-03 TCMEAT 4. 33E-02 9. 22E-03 9. 25E-03 9.22E-03 9.22E-03 9.22E-03 0. 00E+.00 9.22E-03 TCMILK 1. 03E-01 2 . 35E-02 2.53E-02 2. 35E-02 2 . 35E-02 2.35E-02 0. OOE+00 2 .35E-02 CGPD 4 .79E-07 4.79E-07 4.79E-07 4.79E-07 4.79E-07 4.79E-07 0. OOE+00 4.79E-07 CINHL 5. 53E-03 4. 33E-03 4.34E-03 4.33E-03 4 .33E-03 4.33E-03 0. OOE+00 4. 33E-03 CVEG 5 . 39E-01 1.20E-01 1.20E-01 1.20E-01 1.20E-01 1.20E-01 0. OOE+00 1.20E-01 CGMILK 2 40E-01 6. 01E-02 6. 41E-02 6. 01E-02 6.OOE-02 6. OOE-02 0. OOE+00 6. 01E-02 CCMEAT 8. 14E-02 1 .70E-02 1.70E-02 1.70E-02 1.70E-02 1.70E-02 0. OOE+00 1.70E-02 CCMILK 2.54E-01 5 . 53E-02 5. 87E-02 5. 53E-02 5. 53E-02 5.53E-02 0. OOE+00 5. 53E-02 IGPD 4 .79E-07 4 .79E-07 4.79E-07 4.79E-07 4.79E-07 4.79E-07 0. OOE+00 4.79E-07 IINHL 4 .08E-03 2. 71E-03 2 . 72E-03 2.71E-03 2.71E-03 2 .71E-03 0. OOE+00 2 .71E-03 IGMILK 4. 97E-01 1. 20E-01 1.30E-01 1.20E-01 1.20E-01 1.20E-01 0. OOE+00 1.20E-01 ICMILK 4. 97E-01 1.13E-01 1.21E-01 1. 13E-01 1. 13E-01 1. 13E-01 0. OOE+00 1. 13E-01 PERIOD DOSE BY AGEGROUP, ORGAN (mrem)

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 2 . 52E-01 6.84E-02 7. 11E-02 6. 84E-02 6. 84E-02 6.84E-02 0. OOE+00 6. 84E-02 TEEN 3. 81E-01 9.70E-02 1. 01E-01 9.71E-02 9.70E-02 9.70E-02 0. 00E+00 9.70E-02 CHILD 1. 12E+00 2.56E-01 2. 64E-01 2.56E-01 2. 56E-01 2.56E-01 0. OOE+00 2.56E-01 INFANT 9. 99E-01 2.36E-01 2. 54E-01 2. 36E-01 2. 36E-01 2. 36E-01 0. 00E+00 2.36E-01 E-I.6

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ............. 1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... .. 01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 1 Receptor ............... 5 Composite Crit. Receptor - IP Distance (meters) .... :.610 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+0 31-day 2.25E-01 4.98E+02 3. OOE-01 3 .73E+02 Qrtr->End CHILD BONE 1.12E+0 0 0 Quarter 5.63E+00 1.99E+01 7.50E+00 1.49E+01 Year->End CHILD BONE 1.12E+0 0 Annual 1.13E+01 9.95E+00 1.50E+01 7.47E+00 Critical Pathway ........ :.2 Vegetation (VEG)

Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage H-3 0.OOE+00 C-14 1.OOE+02 1-131 2.13E-03 1-132 3.35E-05 1-133 1.62E-05 1-135 4.57E-09

-= 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 2.56E-01 31-day 1. 50E-01 1.71E+02 2 . OOE-01 1.28E+02 Qrtr->End CHILD TBODY 2. 56E-01 Quarter 5 .25E+00 4.88E+00 7. 50E+00 3. 42E+00 Year->End CHILD TBODY 2. 56E-01 Annual 1.05E+01 2 . 44E+00 1. 50E+01 1.71E+00 Critical Pathway ......... 2 Vegetation (VEG)

Major Contributors ....... 0.0 % or greater to total Nuclide Percentage H-3 1.16E+01 C-14 8.86E+01 1-131 5.34E-03 1-132 1.45E-04 1-133 3. 51E-05 1-135 1. 94E-08 E-1.7

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ........... :.1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... .. 01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit ................. : 1 Receptor ............... 4 Composite Crit. Receptor - NG Distance (meters) .... .. 610 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 1.1-E-05 31-day 1.50E-01 7.71E-03 2.OOE-01 5.78E-03 Qrtr->End Gamma 1.16E-05 Quarter 3.75E+00 3.08E-04 5.OOE+00 2.31E-04 Year->End Gamma 1.16E-05 Annual 7.50E+00 1.54E-04 1.OOE+01 1.16E-04 Major Contributors ...... .. 0.0 % or greater to total Nuclide Percentage AR-41 3.36E+01 KR-85M 7.08E-01 KR-87 0.OOE+00 XE-133M 3.94E-01 KR-89 0.OOE+00 KR-88 2.47E-01 XE-131M 0.OOE+00 XE-135 2.91E+01 XE-133 3.59E+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 3.00E-05 31-day 3 . OOE-01 9.99E-03 4.OOE-01 7.50E-03 Qrtr->End Beta 3.OOE-05 Quarter 7.50E+00 4.OOE-04 1.OOE+01 3.OOE-04 Year->End Beta 3.OOE-05 Annual 1. 50E+01 2.OOE-04 2.OOE+01 1.50E-04 Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage AR-41 7.47E+00 KR-85M 7.13E-01 KR-87 0.OOE+00 XE-133M 1.12E+00 KR-89 0.OOE+00 KR-88 2.99E-02 XE-131M 0.OOE+00 XE-135 2.34E+01 XE-133 6.72E+01 E-I.8

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ........... :.1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... :.01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... .. Historical Unit .................... 2

--- RELEASE DATA Total Release Duration (minutes) ...................................... 5.476E+05 Total Release Volume (cf) ............................................. 6.989E+10 Average Release Flowrate (cfm) ........................................ 1.276E+05 Average Period Flowrate (cfm) ......................................... 1.330E+05

==- NUCLIDE DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC AR-41 1. 85E+04 9.37E-12 9.37E-04 1. OOE-08 KR- 85M 2. 95E+03 1.49E-12 1.49E-05 1. OOE-07 KR-85 0. OOE+00 0.OOE+00 0.OOE+00 j 7.OOE-07 KR-87 0.OOE+00 0.OOE+00 0.OOE+00 2.O0E-08 XE-133M 6. 18E+03 3.12E-12 5.20E-06 6. OOE-07 KR-89 0. OOE+00 0.OOE+00 0.OOE+00 1 . OOE-09 KR-88 8. 32E+01 4.20E-14 4.67E-06 9.OOE-09 XE-131M 0. OOE+00 0.OOE+00 0.OOE+00 2.OOE-06 XE-135 7. 76E+04 3.92E-11 5.60E-04 7 . OOE-08 XE-133 5.22E+05 2.64E-10 5.27E-04 5. OOE-07 F&AG 6.27E+05 3.17E-10 2.05E-03 1-131 6. 50E+00 3.29E-15 1.64E-05 2. OOE-10 1-132 3. 52E+02 1.78E-13 8.89E-06 2. OOE-08 1-133 3. 74E-02 1.89E-17 1.89E-08 1.OOE-09 Iodine 3.59E+02 1.81E-13 2.53E-05 C-14 4. 30E+06 2.17E-09 7.25E-01 3. OOE-09 Other 4. 30E+06 2.17E-09 7.25E-01 H-3 2. 65E+08 1.34E-07 1.34E+00 1. OOE-07 H-3 2.65E+08 1.34E-07 1.34E+00 CS-138 0. OOE+00 0.OOE+00 0.OOE+00 8 . OOE-08 P<8 0.OOE+00 0.OOE+00 O.OOE+00 E- 1.9

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ............. 1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... .. 01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... .. Historical Unit .................... 2

=-= NUCLIDE DATA Average ECrcent Nuclide uCi uCi/cc Ratio EC NB-95M 6. 37E+00 3.22E-15 1.07E-06 3.OOE-09 CO-60 1. 15E+02 5.83E-14 1.17E-03 5.OOE-1l CE-141 5. 01E+01 2.53E-14 3.16E-05 8.OOE-10 P>=8 1.72E+02 8.68E-14 1.20E-03 Total 2.69E+08 1.36E-07 2.0,6E+00 E-1.10

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ........... .. 1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... :.01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 2 Receptor ............. : 5 Composite Crit. Receptor - IP Distance (meters) .... :.610 Compass Point ........ :.0.0

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

Age/Path Bone Liver Thyroid Kidney Lung GI-Lli Skin TB AGPD 1. 47E-03 1.47E-03 1.47E-03 1 . 47E-03 1.47E-03 1.47E-03 0. OOE+00 1.47E-03 AINHL 2 .88E-03 7.53E-03 7. 54E-03 7. 53E-03 77. 56E-03 7.54E-03 O.OOE+00 7 .53E-03 AVEG 1. 42E-01 4. 09E-02 4 . lOE-02 4.09E-02 4. 09E-02 4.11E-02 0. OOE+00 4.09E-02 AGMILK 4.26E-03 9. 50E-03 1.01E-02 9. 50E-03 9.50E-03 9.50E-03 0. 00E+00 9. 50E-03 ACMEAT 5.27E-02 1.24E-02 1.24ý-02 1.23E-02 1.23E-02 1.24E-02 0. OOE+00 1.24E-02 ACMILK 5.75E-02 1.57E-02 1. 62E-02 1. 57E-02 1 . 57E-02 1. 58E-02 0.00E+00 1. 57E-02 TGPD 1. 47E-03 1.47E-03 1.47E-03 1.47E-03 1.47E-03 1.47E-03 0.00E+00 1. 47E-03 TINHL 4 .12E-03 7.83E-03 7.83E-03 7.83E-03 7 .87E-03 7.83E-03 0. 00E+00 7. 83E-03 TVEG 2 . 30E-01 6. 04E-02 6. 05E-02 6. 04E-02 6. 04E-02 6.06E-02 0. OOE+00 6. 05E-02 TGMILK 7.70E-03 1.28E-02 1. 37E-02 1.28E-02 1.28E-02 1.28E-02 0. OOE+00 1.28E-02 TCMEAT 4.45E-02 9. 98E-03 9. 98E-03 9. 97E-03 9. 97E-03 1 . 00E-02 0.00E+00 9. 98E-03 TCMILK 1. 06E-01 2 . 67E-02 2.75E-02 2 .67E-02 2. 67E-02 2.68E-02 0. 00E+00 2. 67E-02 CGPD 1.47E-03 1.47E-03 1.47E-03 1.47E-03 1.47E-03 1 . 47E-03 0.00E+00 1 . 47E-03 CINHL 5. 68E-03 7 . 30E-03 7 . 30E-03 7.30E-03 7 . 33E-03 7 . 30E-03 0.00E+00 7 . 30E-03 CVEG 5 . 54E-01 1. 33E-01 1. 33E-01 1. 33E-01 1. 33E-01 1.33E-01 0. 00E+00 1.33E-01 CGMILK 2.47E-01 6. 99E-02 7 .17E-02 6. 99E-02 6. 99E-02 6. 99E-02 0. OOE+00 6. 99E-02 CCMEAT 8.38E-02 1.81E-02 1.81E-02 1.81E-02 1.81E-02 1.81E-02 0. OOE+00 1.81E-02 CCMILK 2. 61E-01 6. 08E-02 6. 23E-02 6. 08E-02 6.08E-02 6. 08E-02 0.OOE+00 6. 08E-02 IGPD 1.47E-03 1.47E-03 1.47E-03 1 . 47E-03 1.47E-03 1.47E-03 0 . 00E+00 1.47E-03 IINHL 4.20E-03 4 .43E-03 4.43E-03 4.43E-03 4.45E-03 4.43E-03 0.00E+00 4.43E-03 IGMILK 5. 11E-01 1. 36E-01 1.40E-01 1.36E-01 1.36E-01 1.36E-01 0. OOE+00 1.36E-01 ICMILK 5.11E-01 1.22E-01 1.26E-01 1.22E-01 1.22E-01 1.22E-01 0 . 00E+00 1.22E-01

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

Agegroup Bone Liver Thyroid Kidney Lung GI-LIi Skin TB ADULT 2. 61E-01 8. 75E-02 8 .87E-02 8.75E-02 8.75E-02 8.78E-02 0.OOE+00 8.75E-02 TEEN 3. 93E-01 1.19E-01 1.21E-O1 1.19E-01 1.19E-01 1.19E-01 0.00E+00 1.19E-01 CHILD 1. 15E+00 2.91E-01 2.94E-01 2.91E-01 2.91E-01 2.91E-01 0.00E+00 2.91E-01 INFANT 1. 03E+00 2. 64E-01 2.72E-01 2.64E-01 2.64E-01 2.64E-01 0.OOE+00 2.64E-01 E-1.11

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ........... :.1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... :.01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 2 Receptor ............... 5 Composite Crit. Receptor - IP Distance (meters) .... :.610 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 1.15E+(

Qrtr->End CHILD BONE 1.15E+4000 31-day 2.25E-01 5.13E+02 3.OOE-01 3.84E+02 Year->End CHILD BONE 1.15E+'0 0 Quarter 5.63E+00 2.05E+01 7.50E+00 1.54E+01 0 Annual 1.13E+01 1.03E+01 1.50E+01 7.69E+00 Critical Pathway ......... 2 Vegetation (VEG)

Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage H-3 0.OOE+00 C-14 9.97E+01 CO-60 1.27E-01 1-131 8.93E-04 1-132 2.22E-05 1-133 7.61E-08 CS-138 0.OOE+00 CE-141 3.88E-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. 91E-01 31-day 1.50E-01 1 .94E+02 2 . OOE-01 1.45E+02 Qrtr->End CHILD TBODY 2. 91E-01 Quarter 5.25E+00 5. 54E+00 7 .50E+00 3. 88E+00 Year->End CHILD TBODY 2. 91E-01 Annual 1. 05E+01 2. 77E+00 1. 50E+01 1. 94E+00 Critical Pathway ......... 2 Vegetation (VEG)

Major Contributors ....... 0.0 % or greater to total Nuclide Percentage H-3 1. 94E+01 C-14 8.01E+01 CO-60 5. 36E-01 1-131 2 . 03E-03 1-132 8.70E-05 1-133 1. 50E-07 CS-138 0. OOE+00 E-1.12

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ........... :.1 All Gas Release Types Period Start Date .... :.01/01/2013 00:00 Period End Date ...... :.01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 2 Major Contributors ...... : 0.0 % or greater to total Nuclide Percentage CE-141 1.25E-04 E-I.13

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ........... :.1 All Gas Release Types Period Start Date .... : 01/01/2013 00:00 Period End Date ...... .. 01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 2 Receptor ............... 4 Composite Crit. Receptor - NG Distance (meters) .... :.610 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 1.16E-05 Qrtr->End Gamma 1.16E-05 31-day 1.50E-01 7.71E-03 2.OOE-01 5.78E-03 Year->End Gamma 1.16E-05 Quarter 3.75E+00 3.08E-04 5.OOE+00 2.31E-04 Annual 7.50E+00 1.54E-04 1.OOE+01 1. 16E-04 Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage j

AR-41 3.36E+01 KR-85M 7.08E-01 KR-85 0.OOE+00 KR-87 0.OOE+00 XE-133M 3.94E-01 KR-89 0.OOE+00 KR-88 2.47E-01 XE-131M 0.OOE+00 XE-135 2.91E+01 XE-133 3.59E+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 3.0-E-05 Qrtr->End Beta 3.OOE-05 31-day 3.OOE-01 9.99E-03 4.OOE-01 7.50E-03 Quarter 7.50E+00 4.OOE-04 1.OOE+01 3.OOE-04 Year->End Beta 3.OOE-05 Annual 1.50E+01 2.OOE-04 2.OOE+01 1.50E-04 Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage AR-41 7.47E+00 KR-85M 7.13E-01 KR-85 0.OOE+00 KR-87 0.OOE+00 XE-133M 1.12E+00 KR-89 0.OOE+00 KR-88 2.99E-02 XE-131M 0.OOE+00 XE-135 2.34E+01 E-1.14

Table 3.1-1 (cont.)

GASEOUS RELEASE AND DOSE

SUMMARY

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

Release ID ............. 1 All Gas Release Types Period Start Date .... .. 01/01/2013 00:00 Period End Date ...... .. 01/01/2014 00:00 Period Duration (min): 5.256E+05 Coefficient Type ..... :.Historical Unit .................... 2 Major Contributors ...... : 0.0 % or greater to total Nuclide Percentage XE-133 6.72E+01 E-1.15

Table 3.2-1 LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... .. 01/01/2013 00:00 Period End Date ....... :.01/01/2014 00:00 Period Duration (mins): 5.256E+05 Unit .................... : 1 MULTIPLE RELEASE POINT MESSAGE Undiluted and Diluted Flowrate(s) and Concentration(s) cannot be combined.

RELEASE DATA Total Release Duration (minutes) ..................................... 1.879E+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 7.61E+01 NB-97 1.66E+03 SN-113 3.46E+02 SB-122 8.74E-01 SB-124 4.66E+02 SB-125 2.69E+04 TE-123M 1.34E+01 CR-51 8.42E+03 MN-54 1.15E+03 FE-59 5.10E+02 CO-58 1.02E+04 CO-60 1.73E+04 ZN-65 2.23E+01 ZR-95 7.89E+02 NB-95 1.48E+03 MO-99 4.21E+01 RU-103 4.89E+00 AG-110M 1.93E+02 CS-134 6.65E+00 LA-140 2.73E+00 Gamma 6.95E+04 XE-133 1.42E+01 D&EG 1.42E+01 H-3 2.04E+09 FE-55 9.41E+03 NI-63 1.OOE+03 E-1. 16

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

(PERIOD BASIS - BY UNIT)

Release ID .............. : 1 All Liquid Release Types Period Start Date ..... :.01/01/2013 00:00 Period End Date ....... :.01/01/2014 00:00 Period Duration (mins): 5.256E+05 NUCLIDE DATA Nuclide uCi Beta 2.04E+09 Total 2.04E+09 E-. 17

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... .. 01/01/2013 00:00 Period End Date ....... .. 01/01/2014 00:00 Period Duration (mins): 5.256E+05 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. 92E-05 1.80E-02 1.80E-02 1. 80E-02 1.80E-02 1. 82E-02 0. OOE+00 1.80E-02 AFWFSp 9.54E-04 8.05E-03 7.47E-03 7 .58E-03 7.55E-03 6.23E-02 0. OOE+00 7. 94E-03 TPWtr 1.83E-05 1.27E-02 1.27E-02 1. 27E-02 1.27E-02 1.28E-02 0.OOE+00 1.27E-02 TFWFSp 9. 88E-04 6.32E-03 5.74E-03 5.84E-03 5.83E-03 4.45E-02 0. OOE+00 6. 18E-03 CPWtr 5. 55E-05 2.44E-02 2.44E-02 2.44E-02 2.44E-02 2.45E-02 0. OOE+00 2.44E-02 CFWFSp 1.28E-03 5.26E-03 4.75E-03 4.83E-03 4.83E-03 1.86E-02 0. OOE+00 5.20E-03 IPWtr 4.29E-05 2.40E-02 2.40E-02 2.40E-02 2.40E-02 2.40E-02 0. OOE+00 2.40E-02

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

Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 9.73E-04 2.61E-02 2.55E-02 2.56E-02 2.56E-02 8.04E-02 0.OOE+00 2.60E-02 TEEN 1.01E-03 1.90E-02 1.84E-02 1.86E-02 1.85E-02 5.73E-02 0.OOE+00 1.89E-02 CHILD 1.34E-03 2.97E-02 2.92E-02 2.92E-02 2.92E-02 4.31E-02 0.OOE+00 2.96E-02 INFANT 4.29E-05 2.40E-02 2.40E-02 2.40E-02 2.40E-02 2.40E-02 0.OOE+00 2.40E-02 E-1.18

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID..............: 1 All Liquid Release Types Period Start Date........01/01/2013 00:00 Period End Date .......... 01/01/2014 00:00 Period Duration (mins) : 5.25GE+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 8. 04E-02 31-day 1.50E-01 5. 36E+01 2. OOE-01 4. 02E+01 Qrtr->End ADULT GILLI 8. 04E-02 Quarter 3. 75E+00 2.15E+00 5. OOE+00 1. 61E+00 Year->End ADULT GILLI 8.04E-02 Annual 7.50E+00 1. 07E+00 1. OOE+01 8.04E-01 Critical Pathway ......... 1 Fresh Water Fish - Sport (FFSP)

Major Contributors ....... 0.0 % or greater to total Nuclide Percentage H-3 3.17E+01 CR-51 7.84E-02 MN-54 4.45E-01 FE-55 7.22E-02 FE-59 1.22E-01 CO-58 5.53E-01 CO-60 2.50E+00 NI-63 1.33E-02 ZN-65 2.98E-02 ZR-95 9.20E-03 NB-95 6.45E+01 MO-99 3.53E-04 RU-103 8.88E-05 AG-11OM 3.59E-03 CS-134 2.37E-03 LA-140 4.74E-04

=== 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 2.9GE-0 Qrtr->End CHILD TBODY 2.96E-0 2 31-day 4.50E-02 6.58E+01 6. OOE-02 4. 94E+01 Year->End CHILD TBODY 2.96E-0 2 Quarter 1. 13E+00 2. 63E+00 1. 50E+00 1. 98E+00 2 Annual 2 .25E+00 1. 32E+00 3.OOE+00 9.88E-01 Critical Pathway ......... 0 Potable Water (PWtr)

Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage H-3 9. 85E+01 CR-51 9.42E-04 E-1.19

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

(PERIOD BASIS - BY UNIT)

Release ID .............. 1 All Liquid Release Types Period Start Date ..... :.01/01/2013 00:00 Period End Date ....... :.01/01/2014 00:00 Period Duration (mins): 5.256E+05 Major Contributors ...... .. 0.0 % or greater to total Nuclide Percentage MN-54 8.13E-02 FE-55 1.14E-01 FE-59 4.35E-02 CO-58 1.89E-01 CO-60 9.04E-01 NI-63 1.18E-01 ZN-65 6.24E-02 ZR-95 8.74E-06 NB-95 1.71E-02 MO-99 1.25E-04 RU-103 1.24E-06 AG-11OM 2.39E-05 CS-134 6.65E-02 LA-140 5.94E-09 E-I.20

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... :.01/01/2013 00:00 Period End Date ....... :.01/01/2014 00:00 Period Duration (mins): 5.256E+05 Unit .................... : 2

=== MULTIPLE RELEASE POINT MESSAGE Undiluted and Diluted Flowrate(s) and Concentration(s) cannot be combined.

== RELEASE DATA Total Release Duration (minutes) ..................................... 1.879E+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 7.61E+01 NB-97 1.66E+03 SN-113 3.46E+02 SB-122 8.74E-01 SB-124 4.66E+02 SB-125 2.69E+04 TE-123M 1.34E+01 CR-51 8.42E+03 MN-54 1.15E+03 FE-59 5.10E+02 CO-58 1.02E+04 CO-60 1.73E+04 ZN-65 2.23E+01 ZR-95 7.89E+02 NB-95 1.48E+03 MO-99 4.21E+01 RU-103 4.89E+00 AG-11OM 1.93E+02 CS-134 6.65E+00 LA-140 2.73E+00 Gamma 6.95E+04 XE-133 1.42E+01 D&EG 1.42E+01 H-3 2.04E+09 FE-55 9.41E+03 NI-63 1.OOE+03 E- 1.21

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

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

=.= NUCLIDE DATA Nuclide uCi Beta 2.04E+09 Total 2.04E+09 E-!.22

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... .. 01/01/2013 00:00 Period End Date ....... :.01/01/2014 00:00 Period Duration (mins): 5.256E+05 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 1.92E-05 1.80E-02 1.80E-02 1.80E-02 1.80E-02 1.82E-02 0.OOE+00 1.80E-02 AFWFSp 9.54E-04 8.05E-03 7.47E-03 7.58E-03 7.55E-03 6.23E-02 0.OOE+00 7.94E-03 TPWtr 1.83E-05 1.27E-02 1.27E-02 1.27E-02 1.27E-02 1.28E-02 0.OOE+00 1.27E-02 TFWFSp 9.88E-04 6.32E-03 5.74E-03 5.84E-03 5.83E-03 4.45E-02 0.OOE+00 6.18E-03 CPWtr 5.55E-05 2.44E-02 2.44E-02 2.44E-02 2.44E-02 2.45E-02 0.OOE+00 2.44E-02 CFWFSp 1.28E-03 5.26E-03 4.75E-03 4.83E-03 4.83E-03 1.86E-02 0.OOE+00 5.20E-03 IPWtr 4.29E-05 2.40E-02 2.40E-02 2.40E-02 2.40E-02 2.40E-02 0.OOE+00 2.40E-02

=== PERIOD DOSE BY AGEGROUP, ORGAN (mrem) A Agegroup Bone Liver Thyroid Kidney Lung GI-Lli Skin TB ADULT 9.73E-04 2.61E-02 2.55E-02 2.56E-02 2.56E-02 8.04E-02 0.00E+00 2.60E-02 TEEN 1.01E-03 1.90E-02 1.84E-02 1.86E-02 1.85E-02 5.73E-02 0.00E+00 1.89E-02 CHILD 1.34E-03 2.97E-02 2.92E-02 2.92E-02 2.92E-02 4.31E-02 0.OOE+00 2.96E-02 INFANT 4.29E-05 2.40E-02 2.40E-02 2.40E-02 2.40E-02 2.40E-02 0.00E+00 2.40E-02 E-i.23

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... .. 01/01/2013 00:00 Period End Date ....... :.01/01/2014 00:00 Period Duration (mins): 5.256E+05 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 8. 04E-02 31-day 1. 50E-01 5.36E+01 2. OE-01 4 .02E+01 Qrtr->End ADULT GILLI 8.04E-02 Quarter 3. 75E+00 2.15E+00 5. OOE+00 1. 61E+00 Year->End ADULT GILLI 8.04E-02 Annual 7. 50E+00 1 . 07E+00 1. OOE+01 8. 04E-01 Critical Pathway ......... 1 Fresh Water Fish - Sport (FFSP)

Major Contributors ....... 0.0 % or greater to total Nuclide Percentage H-3 3.17E+01 CR-51 7.84E-02 MN-54 4.45E-01 FE-55 7.22E-02 FE-59 1.22E-01 CO-58 5.53E-01 CO-60 2.50E+00 NI-63 1.33E-02 ZN-65 2.98E-02 ZR-95 9.20E-03 NB-95 6.45E+01 MO-99 3.53E-04 RU-103 8.88E-05 AG-I1OM 3.59E-03 CS-134 2.37E-03 LA-140 4.74E-04 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 Qrtr->End CHILD TBODY 2.96E-0 2 31-day 4.50E-02 6.58E+01 6.OOE-02 4. 94E+01 2.96E-0 2 Quarter 1.13E+00 2.63E+00 1.50E+00 1. 98E+00 Year->End CHILD TBODY 2.96E-0 2 Annual 2.25E+00 1.32E+00 3.OOE+00 9. 88E-01 Critical Pathway ........ :.0 Potable Water (PWtr)

Major Contributors ...... :.0.0 % or greater to total Nuclide Percentage H-3 9.85E+01 CR-51 9.42E-04 E-1.24

Table 3.2-1 (cont.)

LIQUID RELEASE AND DOSE

SUMMARY

REPORT

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

Release ID .............. 1 All Liquid Release Types Period Start Date ..... :.01/01/2013 00:00 Period End Date ....... .. 01/01/2014 00:00 Period Duration (mins): 5.256E+05 Major Contributors ....... 0.0 % or greater to total Nuclide Percentage MN-54 8.13E-02 FE-55 1.14E-01 FE-59 4.35E-02 CO-58 1.89E-01 CO-60 9.04E-01 NI-63 1.18E-01 ZN-65 6.24E-02 ZR-95 8.74E-06 NB-95 1.71E-02 MO-99 1.25E-04 RU-103 1.24E-06 AG-11OM 2.39E-05 CS-134 6.65E-02 LA-140 5.94E-09 E-1.25

Table 3-3.1 Braidwood Nuclear Station Unit 1 10 CFR 20 Compliance Assessment Period of Assessment: l/l/13 through 12/31/13 Calculated: 04/14/14 10 CFR 20.1301(a)(1) Compliance Total Effective Dose Equivalent (TEDE) mrem/year 1.21 E+00 10 CFR 20.1301(a)(1) limit mrem/year 100.00

% of limit 1.21 Compliance Summary Ist Qtr 2 no Qtr 3 rd Qtr 4" Qtr Total TEDE (mrem) 2.98E-01 3.03E-01 2.86E-01 3.19E-01 1.21 E+00 E-1.26

Table 3-3.1 (cont.)

Braidwood Nuclear Station Unit 2 10 CFR 20 Compliance Assessment Period of Assessment: 1/1/13 through 12/31/13 Calculated: 04/14/14 10 CFR 20.1301 (a)(l) Compliance Total Effective Dose Equivalent (TEDE) mrem/year 1.24E+00 10 CFR 20.1301(a)(1) limit mrem/year 100.00

% of limit 1.24 Compliance Summary Is Qtr 2nd Qtr 3rd Qtr 4 th Qtr Total TEDE (mrem) 2.98E-01 2.88E-01 3.32E-01 3.22E-01 1.24E+00 E-i.27

Table 3.4-1 Doses Resultin-q 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) 1.490 xl 0-5 mrad North beta air (2) 2.380 xl0-5 mrad North whole body (3) 2.018 x10 1 mrem North skin (4) 2.220 x 10-5 mrem North organ (5)(child-bone) 8.903 x10 1 mrem North Unit 1 Compliance Status 10 CFR 50 Appendix I Yearly Objective % of Appendix I gamma air 10.0 mrad 0.OOE+00 beta air 20.0 mrad 0.OOE+00 whole body 5.0 mrem 4.04E+00 skin 15.0 mrem 0.OOE+00 organ 15.0 mrem 5.94E+00 Unit 2:

Dose Maximum Value Sector Affected gamma air (1) 1.490 xl 0-5 mrad North beta air (2) 2.380 xl0-5 mrad North whole body (3) 2.294 x10 1 mrem North skin (4) 2.220 x10-5 mrem North organ (5)(child-bone) 9.169 x10-1 mrem North Unit 2 Compliance Status 10 CFR 50 Appendix I Yearly Objective % of Appendix I gamma air 10.0 mrad 0.OOE+00 beta air 20.0 mrad 0.OOE+00 whole body 5.0 mrem 4.59E+00 skin 15.0 mrem 0.OOE+00 organ 15.0 mrem 6.11 E+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- 1.28

i APPENDIX F METEOROLOGICAL

Intentionally left blank Braidwood Generating Station Period of Record: January - March 2013 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 NNE 0 0 0 0 NE 0 0 0 0 ENE 0 0 0 2 E 0 0 0 5 ESE 0 0 0 0 SE 0 0 0 3 SSE 0 0 0 0 S 0 0 0 1 SSW 0 0 0 1 SW 0 0 0 0 WSW 0 0 0 4 W 0 6 10 4 0 0 20 WNW 0 3 12 16 0 0 31 NW 0 1 27 0 0 0 28 NNW 0 0 9 3 0 0 12 Variable 0 0 0 0 0 0 0 Total 0 13 68 26 0 0 107 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-i

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Moderately Unstable - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Sp*eed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 N 0 0 0 0 0 1 0 0 NNE 0 0 0 1 1 0 0 NE 0 0 0 1 0 0 ENE 0 0 0 0 0 0 0

.9 E 0 2 0 0 2 0 0 1 ESE 0 1 0 0 0 0 1 SE 0 1 0 0 0 0 0 SSE 0 0 0 0 S 0 1 4 3 1 0 9 SSW 0 2 4 1 3 0 10 SW 0 0 1 0 0 0 1 WSW 0 0 2 2 0 0 4 W 0 1 2 1 0 0 4 WNW 0 6 5 5 0 0 16 NW 0 6 6 0 0 0 12 NNW 0 1 5 0 0 0 6 Variable 0 0 0 0 0 0 0 Total 0 23 29 12 4 0 68 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability class es: 2 F-2

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Slightly Unstable - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Sp(eed (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 2 1 0 0 0 3 NE 0 3 0 0 0 0 3 ENE 1 3 0 0 0 0 4 E 0 3 1 0 0 0 4 ESE 0 1 0 0 0 0 1 SE 0 3 0 0 0 0 3 SSE 0 2 0 0 0 0 2 S 0 0 3 3 0 0 6 SSW 0 0 2 1 2 0 5 SW 0 0 0 3 0 0 3 WSW 0 0 3 1 0 0 4 W 0 3 '7 4 0 0 14 WNW 0 6 8 5 0 0 19 NW 0 6 4 0 0 0 10 NNW 0 6 8 0 0 0 14 Variable 0 0 0 0 0 0 0 Total 1 38 40 17 2 0 98 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-3

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Neutral - 199Ft-3OFt 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 48 3 63 NNE 17 19 4 43 NE 12 19 4 37 ENE 25 11 1 46 E 33 7 0 47 ESE 22 3 0 26 SE 19 30 2 52 SSE 18 24 7 49 S 6 19 10 42 SSW 4 13 17 44 SW 10 45 16 74 WSW 26 39 7 -79 W 29 31 24 94 WNW 71 86 42 206 NW 53 29 1 90 NNW 49 94 9 154 Variable 0 0 0 0 Total 51 402 517 147 29 0 1146 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-4

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Slightly Stable - 199Ft-3OFt 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 6 4 0 0 0 16 NNE 5 7 1 0 0 0 13 NE 6 3 2 0 0 0 11 ENE 8 7 6 3 0 0 24 E 16 7 0 0 0 0 23 ESE 6 14 8 0 0 0 28 SE 0 10 30 1 0 0 41 SSE 0 7 22 1 0 0 30 S 0 19 23 15 1 0 58 SSW 0 11 19 20 10 0 60 SW 2 7 18 10 0 0 37 WSW 4 26 7 2 0 0 39 W 12 22 3 1 0 0 38 WNW 23 30 7 3 0 0 63 NW 20 22 5 0 0 0 47 NNW 15 21 3 1 0 0 40 Variable 1 0 0 0 0 0 1 Total 124 219 158 57 11 0 569 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-5

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Moderately Stable - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Spe ed (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 5 0 0 0 0 0 5 NE 4 0 0 0 0 0 4 ENE 8 0 0 0 0 0 8 E 13 1 0 0 0 0 14 ESE 6 2 0 0 0 0 8 SE 2 0 0 0 0 0 2 SSE 1 3 0 0 0 0 4 S 1 1 0 0 0 0 2 SSW 0 1 2 0 0 0 3 SW 4 1 0 0 0 0 5 WSW 3 14 0 0 0 0 17 W 12 9 0 0 0 0 21 WNW 7 0 0 0 0 0 7 NW 7 0 0 0 0 0 7 NNW 5 0 o 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 84 32 2 0 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: 2 F-6

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Extremely Stable - 199Ft-3OFt 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 0 0 0 N 0 0 0 0 NNE 0 0 0 2 NE 2 0 0 3 ENE 3 0 0 15 E 15 0 0 4 ESE 4 0 0 0 SE 0 0 0 0 SSE 0 0 0 0 S 0 0 0 1 SSW 0 0 0 0 SW 0 0 0 3 WSW 2 0 0 7 W 5 0 0 2 WNW 2 0 0 2 NW 2 0 0 2 NNW 2 0 0 0 Variable 0 Total 37 0 0 0 0 41 Hours of calm in this stability class: 6 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-7

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Extremely Unstable - 199Ft-3OFt 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 1 1 0 0 2 E 0 1 3 1 0 0 5 ESE 0 0 0 0 0 0 0 SE 0 0 3 0 0 0 3 SSE 0 0 0 0 0 0 0 S 0 0 0 1 1 0 2 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 6 1 0 7 W 0 0 10 7 7 6 30 WNW 0 2 8 9 12 0 31 NW 0 0 10 13 3 0 26 NNW 0 0 0 1 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 3 35 39 24 6 107 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-8

Braidwood Generating Station Period of Record: January - March 2013 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 0 NNE 0 0 1 NE 0 0 1 ENE 0 0 0 E 0 0 1 '

ESE 0 0 2 SE 0 0 1 SSE 0 0 0 S 0 4 15 SSW 0 1 4 SW 0 0 2 WSW 0 0 4 W 0 2 8 WNW 0 2 7 4 3 2 18 NW 0 0 4 5 0 0 9 NNW 0 0 0 2 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 9 22 21 7 9 68 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 F-9

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Slightly Unstable - 199Ft-3OFt 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 4 0 0 4 NNE 0 3 0 0 0 0 3 NE 0 2 0 0 0 0 2 ENE 0 1 2 0 0 0 3 E 1 2 0 3 0 0 6 ESE 0 0 1 0 0 0 1 SE 0 2 0 0 0 0 2 SSE 0 0 2 0 0 0 2 S 0 0 2 3 2 1 8 SSW 0 0 1 0 0 2 3 SW 0 0 0 0 3 0 3 WSW 0 0 0 4 2 0 6 W 0 3 4 6 5 2 20 WNW 0 1 7 5 2 1 16 NW 0 4 5 6 0 0 15 NNW 0 1 0 3 0 0 4 Variable 0 0 0 0 0 0 0 Total 1 19 24 34 14 6 98 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-10

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Neutral - 199Ft-3OFt 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 8 21 20 1 0 53 NNE 3 14 8 4 0 30 NE 4 10 18 3 0 36 ENE 11 16 5 0 0 36 E 6 15 24 4 j 0 51 ESE 2 14 14 1 0 31 SE 2 17 25 14 0 58 SSE 2 18 14 1 5 40 S 1 8 11 10 15 46 SSW 1 6 16 11 4 38 SW 13 22 33 7 0 75 WSW 9 21 33 6 7 76 W 17 32 30 36 21 138 WNW 7 55 58 49 11 185 NW 25 46 59 7 0 137 NNW 7 37 63 9 0 117 Variable 0 0 0 0 0 0 Total 20 118 352 431 163 63 1147 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-II

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Slightly Stable - 199Ft-3OFt 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 5 9 3 0 0 18 NNE 1 1 4 1 0 0 7 NE 2 4 1 5 1 1 14 ENE 3 5 6 5 1 0 20 E 0 4 6 1 j 0 0 11 ESE 0 3 17 13 7 0 40 SE 0 1 6 24 17 0 48 SSE 0 0 2 11 11 2 26 S 0 1 16 16 14 12 59 SSW 0 3 13 21 11 16 64 SW 0 4 10 12 5 1 32 WSW 0 4 15 9 1 1 30 W 4 7 29 7 2 0 49 WNW 1 8 33 15 1 3 61 NW 0 12 42 8 2 0 64 NNW 0 12 13 4 0 0 29 Variable 0 1 0 0 0 0 1 Total 12 75 222 155 73 36 573 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-12

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Moderately Stable - 199Ft-3OFt 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 8 4 0 0 0 14 0 0 NNE 1 3 1 0 5 0 0 NE 1 2 1 0 4 0 0 ENE 0 3 0 0 3 0 0 E 0 5 2 '2 9 1 0 0 ESE 0 4 1 6 0 0 0 SE 0 3 1 4 0 0 SSE 2 0 0 3 0 0 S 0 2 3 0 5 0 0 SSW 0 2 2 0 4 0 0 SW 0 3 4 1 8 0 0 WSW 0 1 5 1 7 0 0 W 0 3 8 4 15 0 0 WNW 1 5 12 0 18 0 0 NW 0 5 0 0 5 0 0 NNW 1 2 5 0 8 0 0 Variable 0 0 0 0 0 Total 8 46 54 10 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: 2 F- 13

Braidwood Generating Station Period of Record: January - March 2013 Stability Class - Extremely Stable - 199Ft-3OFt 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 3 0 0 0 0 4 NNE 0 0 1 0 0 0 1 NE 1 1 2 0 0 0 4 ENE 1 1 1 0 0 0 3 1 1 2 0 6 ESE 0 8 SE 0 2 SSE 0 1 S 0 0 SSW 0 1 SW 0 2 WSW 0 4 W 0 5 WNW 0 3 NW 0 0 NNW 0 3 Variable 0 0 Total 7 15 21 4 0 0 47 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-14

Braidwood Generating Station Period of Record: April - June 2013 Stability Class - Extremely Unstable - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Sp eed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 1 0 0 0 2 NNE 0 5 9 0 0 0 14 NE 1 10 15 0 0 0 26 ENE 0 11 1 0 0 0 12 E 0 ' 10 1 0 0 0 11 ESE 1 5 1 0 0 0 7 SE 0 11 18 0 0 0 29 SSE 0 14 6 2 0 0 22 S 0 5 6 4 0 0 15 SSW 0 0 6 14 0 0 20 SW 0 0 5 4 2 0 11 WSW 1 1 5 0 0 0 7 W 0 7 5 4 0 0 16 WNW 0 5 17 1 0 0 23 NW 0 9 24 3 0 0 36 NNW 0 2 7 0 0 0 9 Variable 0 0 0 0 0 0 0 Total 3 96 127 32 2 0 260 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 2013 Stability Class - Moderately Unstable - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 3-12 13-18 19-24 > 24 Total N 1 1 0 0 0 0 2 NNE 1 5 5 0 0 0 11 NE 1 8 0 17 ENE 0 0 0 4 E 0 0 7 ESE 0 0 5 SE 0 0 0 2 SSE 0 2 0 9 S 0 5 0 12 SSW 0 3 0 8 SW 0 3 0 7 WSW 0 1 0 7 W 0 10 4 2 0 0 16 WNW 0 4 2 0 0 0 6 NW 0 6 0 1 0 0 7 NNW 0 3 2 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 5 70 35 14 1 0 125 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 2013 Stability Class - Slightly Unstable - 199Ft-3OFt 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 I 0 5 NNE 0 0 10 NE 0 0 13 ENE 1 0 3 ESE 1 0 1 ESE 0 0 5 0 0 7 SSE 0 0 5 S 0 0 11 SSW 0 0 17 SW 0 0 11 WSW 0 0 5 W 0 0 8 WNW 1 0 9 NW 1 0 7 NNW 0 0 2 Variable 0 0 0 Total 5 44 47 19 4 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-17

Braidwood Generating Station Period of Record: April - June 2013 Stability Class - Neutral - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Spe ed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 25 13 1 0 0 41 NNE 3 32 29 2 0 0 66 NE 5 46 43 0 0 0 94 ENE 7 43 20 0 0 0 70 E 8 21 4 0 0 0 33 ESE 5 20 0 0 0 0 25 SE 4 16 11 0 0 0 31 SSE 1 16 19 6 0 0 42 S 1 13 27 21 2 0 64 SSW 0 7 30 25 2 1 65 SW 1 6 38 14 1 0 60 WSW 0 25 23 16 2 0 66 W 5 15 22 14 2 0 58 WNW 2 9 3 1 0 0 15 NW 3 11 5 0 0 0 19 NNW 5 14 19 1 0 0 39 Variable 0 0 0 0 0 0 0 Total 52 319 306 101 9 1 '788 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 2013 Stability Class - Slightly Stable - 199Ft-3OFt 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 13 1 0 0 0 17 NNE 5 36 13 0 0 0 54 NE 15 13 0 0 0 0 28 ENE 34 36 4 0 0 0 74 j E 26 34 1 0 0 0 61 ESE 12 33 1 0 0 0 46 SE 3 31 9 0 0 0 43 SSE 7 33 29 4 0 0 73 S 1 28 41 9 2 0 81 SSW 1 10 16 5 4 1 37 SW 2 16 13 3 0 0 34 WSW 2 23 6 1 0 0 32 W 12 7 9 2 0 0 30 WNW 14 15 6 0 0 0 35 NW 12 13 0 0 0 26 NNW 7 11 3 0 0 0 21 Variable 1 0 0 0 0 0 1 Total 157 352 153 24 6 1 693 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: 0 F- 19

Braidwood Generating Station Period of Record: April - June 2013 Stability Class - Moderately Stable - 199Ft-3OFt 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 9 3 0 0 0 0 12 NNE 4 3 0 0 0 0 7 NE 3 0 0 0 0 0 3 ENE 12 2 0 0 0 0 14 E 22 0 24 ESE 16 8 0 24 SE 7 6 0 13 SSE 5 2 0 7 S 0 2 0 2 SSW 1 0 0 1 SW 1 0 0 1 WSW 8 6 0 14 W 9 3 0 12 WNW 6 1 0 7 NW 2 0 0 2 NNW 5 2 0 7 Variable 0 0 0 0 Total 110 40 0 150 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-20

Braidwood Generating Station Period of Record: April - June 2013 Stability Class - Extremely Stable - 199Ft-3OFt 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 4 NNE 3 0 0 4 NE 1 0 1 ENE 3 0 3 E 9 0 9 ESE 2 0 2 SE 1 0 1 SSE 0 0 0 S 0 0 0 SSW 0 0 1 SW 0 0 0 WSW 1 0 2 W 3 0 4 WNW 1 0 1 NW 5 0 6 NNW 2 0 2 Variable 0 0 0 Total 35 0 40 Hours of calm in this stability class: 3 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 F-21

Braidwood Generating Station Period of Record: April - June 2013 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 1 3 0 5 NNE 10 1 0 13 NE 12 8 0 24 ENE 4 0 0 10 E 4 1 0 12 ESE 7 2 0 15 SE 8 14 1 27 SSE 6 4 1 19 S 2 3 5 15 SSW 0 8 12 21 SW 1 3 2 7 WSW 2 3 0 8 W 5 7 1 16 WNW 13 17 4 36 NW 8 21 2 31 NNW 1 0 0 1 Variable 0 0 0 0 Total 1 48 84 95 28 4 260 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 2013 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 6 NNE 0 6 NE 0 15 ENE 0 5 E 0 9 ESE 0 6 SE 0 2 SSE 0 12 S 1 8 SSW 4 9 SW 1 6 WSW 0 9 W 1 16 WNW 0 5 NW 0 10 NNW 0 1 Variable 0 0 Total 3 33 45 34 7 3 125 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 2013 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 1 1 3 2 0 0 7 NNE 0 2 4 4 0 0 10 NE 0 0 10 ENE 0 0 3 E 1 0 1 ESE 0 5 SE 0 8 SSE 1 7 S 2 9 SSW 4 18 SW 0 9 WSW 1 8 W U 6 WNW 0 11 NW 0 5 NNW 0 2 Variable 0 0 Total 2 21 37 37 14 8 119 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-24

Braidwood Generating Station Period of Record: April - June 2013 Stability Class - Neutral - 199Ft-3OFt 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 10 20 12 1 0 44 NNE 2 12 24 24 7 0 69 NE 1 13 41 38 2 0 95 ENE 2 10 33 5 1 0 51 E 0 12 14 10 1 0 37 ESE 2 4 9 11 0 0 26 SE 2 4 10 10 3 0 29 SSE 0 5 13 15 7 1 41 S 1 2 11 25 21 10 70 SSW 0 2 7 36 17 10 72 SW 1 3 17 17 3 3 44 WSW 1 7 23 18 7 11 67 W 0 3 17 18 12 6 56 WNW 0 3 10 2 3 0 18 NW 0 13 6 7 1 0 27 NNW 1 10 22 7 1 0 41 Variable 0 0 0 0 0 0 0 Total 14 113 277 255 87 41 787 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: 0 F-25

Braidwood Generating Station Period of Record: April - June 2013 Stability Class - Slightly Stable - 199Ft-3OFt 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 6 15 2 24 NNE 2 28 11 42 NE 7 26 2 35 ENE 29 39 6 65 E 10 41 15 67 ESE 0 14 21 37 SE 7 17 21 48 SSE 6 18 37 76 S 3 14 44 87 SSW 2 8 12 35 SW 6 15 9 34 WSW 7 14 7 30 W 9 13 9 34 WNW 1 17 12 34 NW 3 22 7 33 NNW 3 9 2 14 Variable 0 0 0 0 Total 91 310 217 55 14 695 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 2013 Stability Class - Moderately Stable - 199Ft-3OFt 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 8 15 NNE 7 10 NE 2 3 ENE 1 5 E 9 13 ESE 11 16 SE 17 24 SSE 4 11 S 3 8 SSW 1 2 SW 0 1 WSW 7 10 W 9 12 WNW 11 13 NW 2 5 NNW 4 6 Variable 0 0 Total 8 30 96 20 0 0 154 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 2013 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 2 3 1 1 0 0 7 NE 0 4 0 0 0 0 4 ENE 1 1 0 0 0 0 2 E 0 0 1 0 0 0 1 ESE 0 1 2 1 0 0 4 SE 0 0 2 0 0 0 2 SSE 0 1 0 0 0 0 1 S 0 1 0 0 0 0 1 SSW 0 1 0 0 0 0 1 SW 0 0 1 0 0 0 1 WSW 0 1 0 0 0 0 1 W 1 0 2 3 0 0 6 WNW 0 0 1 1 0 0 2 NW 0 0 0 1 0 0 1 NNW 1 2 1 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 5 18 13 7 0 0 43 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 2013 Stability Class - Extremely Unstable - 199Ft-3OFt 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 7 5 12 NNE 0 9 10 19 NE 1 28 9 38 ENE 2 32 1 35 E 1 23 0 24 ESE 1 20 0 21 SE 3 14 1 18 SSE 0 31 1 32 S 0 30 6 37 SSW 0 13 24 40 SW 0 11 34 48 WSW 1 18 23 46 W 0 31 1 32 WNW 0 23 9 32 NW 1 12 14 27 NNW 0 9 17 26 Variable 0 1 0 1 Total 10 312 155 11 0 0 488 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: 9 F-29

Braidwood Generating Station Period of Record: July - September 2013 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 2 0 0 0 6 NNE 1 5 0 0 0 11 NE 0 0 0 0 0 7 ENE 1 0 0 0 0 9 E 1 0 s 0 0 0 7 ESE 1 0 0 0 0 4 SE 1 0 0 0 0 4 SSE 2 0 0 0 0 5 S 0 0 0 0 0 5 SSW 0 4 0 0 0 5 SW 0 6 0 0 0 10 WSW 0 8 4 0 0 0 12 W 0 5 1 0 0 0 6 WNW 0 6 0 0 0 0 6 NW 1 9 0 0 0 0 10 NNW 0 3 3 0 0 0 6 Variable 1 0 0 0 0 0 1 Total 9 80 25 0 0 0 114 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: 9 F-30

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Slightly Unstable - 199Ft-3OFt 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 2 1 0 0 0 5 NNE 2 4 2 1 0 0 9 NE 0 7 4 0 0 0 11 ENE 1 4 0 0 0 0 5 E 1 2 1 0 0 3 ESE 0 3 SE 0 2 SSE 0 5 S 0 6 SSW 0 7 SW 0 9 WSW 0 9 W 0 7 WNW 0 5 NW 0 3 NNW 0 9 Variable 0 0 Total 10 66 20 2 0 0 98 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: 9 F-31

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Neutral - 199Ft-3OFt 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 9 12 3 0 0 0 24 NNE 1 20 12 1 0 0 34 NE 1 36 7 0 0 0 44 ENE 13 21 1 0 0 0 35 E 12 / 9 0 0 0 0 21 ESE 3 9 0 0 0 0 12 SE 5 10 0 0 0 0 15 SSE 4 23 0 0 0 0 27 S 3 16 6 0 0 0 25 SSW 0 11 29 3 0 0 43 SW 2 28 34 0 0 0 64 WSW 1 22 4 0 0 0 27 W 3 17 4 0 0 0 24 WNW 7 8 0 0 0 0 15 NW 6 9 0 0 0 0 15 NNW 7 13 5 0 0 0 25 Variable 0 0 0 0 0 0 0 Total 77 264 105 4 0 0 450 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: 9 F-32

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Slightly Stable - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Speeed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 9 8 1 0 0 0 18 NNE 6 40 6 0 0 0 52 NE 12 18 1 0 0 0 31 ENE 44 14 0 0 0 0 58 E j 39 2 0 0 0 0 41 ESE 19 26 0 0 0 0 45 SE 6 23 0 0 0 0 29 SSE 17 46 0 0 0 0 63 S 6 48 17 0 0 0 71 SSW 1 31 33 0 0 0 65 SW 1 28 44 1 0 0 74 WSW 12 21 2 0 0 0 35 W 15 11 0 0 0 0 26 WNW 19 7 0 0 0 0 26 NW 12 2 0 0 0 0 14 NNW 8 9 0 0 0 0 17 Variable 0 0 0 0 0 0 0 Total 226 334 104 1 0 0 665 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 cl asses: 9 F-33

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Moderately Stable - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Spe ed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 N 7 0 0 8 1 0 0 NNE 8 0 0 9 0 0 NE 9 0 0 0 9 0 0 ENE 19 0 0 0 19 0 0 52 0 0 0 52 0 0 ESE 21 5 0 0 26 0 0 SE 6 3 0 0 9 0 0 SSE 7 4 0 0 11 0 0 S 4 1 1 0 6 0 0 SSW 2 3 1 0 6 0 0 SW 7 8 0 0 15 0 0 WSW 11 6 0 0 17 0 0 W 9 0 0 0 9 0 0 WNW 6 0 0 0 6 0 0 NW 6 0 0 0 6 0 0 NNW 3 1 0 0 4 0 0 Variable 0 0 0 0 0 Total 177 33 2 0 0 0 212 Hours of calm in this stability class: 20 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 9 F-34

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Extremely Stable - 199Ft--30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Sp eed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 0 0 0 0 0 3 0 0 NNE 5 0 0 0 5 0 0 NE 4 0 0 0 4 0 0 ENE 13 0 0 0 13 0 0 E 18 0 0 0 18 0 0 ESE 5 0 0 0 5 0 0 SE 1 0 0 0 1 0 0 SSE 0 0 0 0 0 0 0 S 3 0 0 0 3 0 0 SSW 0 0 0 0 0 0 0 SW 2 0 0 0 2 0 0 WSW 12 2 0 0 14 0 0 W 9 0 0 0 9 0 0 WNW 5 0 0 0 5 0 0 NW 6 0 0 0 6 0 0 NNW 4 0 0 0 4 0 0 Variable 0 0 0 0 0 Total 90 2 0 0 0 0 92 Hours of calm in this stability class: 53 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 9 F-35

Braidwood Generating Station Period of Record: July - September 2013 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 1 4 7 1 0 0 13 NNE 0 4 9 3 0 0 16 NE 1 12 24 2 0 0 39 ENE 4 9 18 0 0 0 31 E 0 23 6 0 0 0 29 ESE 0 18 4 0 0 0 22 SE 0 10 6 0 0 0 16 SSE 1 19 11 0 0 0 31 S 0 18 21 1 0 41 SSW 0 3 23 5 1 2 34 SW 0 4 29 10 0 0 43 WSW 0 10 20 16 0 0 47 3

1 W 0 21 16 0 0 38 WNW 0 9 16 12 0 0 37 NW 0 9 10 8 3 0 30 NNW 0 3 14 3 0 0 20 Variable 0 1 0 0 0 0 1 Total 7 177 234 61 2 488 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: 9 F-36

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Moderately Unstable - 199Ft-3OFt 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 6 NNE 12 NE 6 ENE 8 E 7 ESE 5 SE 3 SSE 3 S 7 SSW 4 SW 11 WSW 10 W 9 WNW 4 NW 13 NNW 5 Variable 1 Total 3 52 42 17 0 0 114 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: 9 F-37

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Slightly Unstable - 199Ft-3OFt 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 NNE 0 0 8 NE 0 0 11 ENE 0 0 4 E 1 0 4 ESE 0 0 2 SE 0 0 3 SSE 0 0 2 S 0 0 9 SSW 0 0 5 SW 0 0 8 WSW 0 0 11 W 1 0 8 WNW 0 0 5 NW 1 0 4 NNW 1 4 5 2 0 0 12 Variable 0 0 0 0 0 0 0 Total 4 40 40 11 3 0 98 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: 9 F-38

Braidwood Generating Station Period of Record: July - September 2013 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 7 6 9 4 0 0 26 NNE 2 6 14 7 1 0 30 NE 1 4 35 6 0 0 46 ENE 2 11 12 3 0 0 28 E 0 8 14 0 0 0 22 ESE 1 2 10 1 0 0 14 SE 1 8 6 1 0 0 16 SSE 1 8 14 1 0 0 24 S 0 2 14 4 1 0 21 SSW 0 3 10 25 3 1 42 SW 1 11 45 13 0 0 70 WSW 1 10 18 3 0 0 32 W 0 12 10 4 0 0 26 WNW 0 8 4 3 0 0 15 NW 1 4 6 3 0 0 14 NNW 2 8 11 2 1 0 24 Variable 0 0 0 0 0 0 0 Total 20 1il 232 80 6 1 450 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: 9 F-39

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Slightly Stable - 199Ft-3OFt 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 9 1 0 0 16 NNE 1 1 30 12 0 0 44 NE 1 7 35 2 1 0 46 ENE 1 11 27 0 0 0 39 E 0 7 42 2 0 0 51 ESE 0 3 28 10 0 0 41 SE 1 5 14 9 0 0 29 SSE 0 2 31 4 0 0 37 S 2 6 39 13 1 0 61 SSW 1 4 44 51 0 0 100 SW 0 6 35 40 2 0 83 WSW 0 5 22 5 0 0 32 W 0 3 21 2 0 0 26 WNW 2 5 21 1 0 0 29 NW 1 2 12 0 0 0 15 NNW 2 2 19 0 0 0 23 Variable 0 0 0 0 0 0 0 Total 14 7.3 429 152 0 672 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: 9 F-40

Braidwood Generating Station Period of Record: July - September 2013 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 3 6 0 9 NNE 3 8 0 12 NE 3 5 0 8 ENE 12 5 0 17 E 7 22 2 32 ESE 3 13 14 30 SE 7 12 5 24 SSE 5 6 0 11 S 5 3 0 8 SSW 2 15 0 17 SW 5 9 0 15 WSW 2 8 0 10 W 3 6 1 10 WNW 4 6 0 10 NW 6 6 0 13 NNW 2 4 0 6 Variable 0 0 0 0 Total 3 72 134 22 0 232 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: 9 F-41

Braidwood Generating Station Period of Record: July - September 2013 Stability Class - Extremely Stable - 199Ft-3OFt 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 7 2 0 0 0 9 NNE 0 8 2 0 0 0 10 NE 1 1 4 0 0 0 6 ENE 1 5 2 0 0 0 8 E 2 10 3 0 0 15 ESE 6 4 0 14 SE 3 1 0 7 SSE 0 0 0 4 S 0 0 0 4 SSW 0 0 0 5 SW 0 0 9 WSW 6 1 0 14 W 4 3 0 14 WNW 1 5 0 7 NW 3 0 0 9 NNW 2 0 0 9 Variable 0 0 0 0 Total 14 77 39 14 0 0 144 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 cl asses: 9 F-42

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Extremely Unstable - 199Ft-3OFt Delta-T (F)

Winds Measured at 34 Feet Wind Sp(eed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 1 0 0 NE 1 0 0 2 1 0 0 ENE 2 0 0 3 0 0 E 0 13 0 0 0 0 1 ESE 0 1 0 0 SE 0 4 2 0 0 0 6 SSE 1 7 3 1 0 0 12 S 0 4 1 0 0 0 5 SSW 0 5 1 4 0 0 10 SW 0 3 6 5 0 0 14 WSW 0 1 11 7 0 0 19 W 0 2 7 6 0 0 15 WNW 0 5 8 3 0 0 16 NW 0 7 10 0 0 0 17 NNW 0 2 13 4 0 0 19 Variable 0 0 0 0 0 0 0 Total 3 57 62 30 0 0 152 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabili ty class: 0 Hours of missing stability measurements in all sta bility cliasses: 3 F-43

Braidwood Generating Station Period of Record: October - December 2013 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 0 1 1 0 N 0 0 2 0 1 0 0 NNE 0 0 1 0 2 0 0 NE 0 0 2 0 1 0 0 ENE 0 0 1 0 4 0 0 E 0 0os 4 0 3 0 0 ESE 0 0 3 SE 3 2 0 0 0 6 5 SSE 1 4 0 0 0 0 5 S 0 2 2 0 0 0 4 SSW 0 1 4 2 0 0 7 SW 0 0 5 2 0 0 7 WSW 0 4 6 3 0 0 13 W 0 3 8 1 0 0 12 WNW 0 5 4 0 0 0 9 NW 0 1 2 0 0 0 3 NNW 0 1 3 1 0 0 5 Variable 0 0 0 0 0 0 0 Total 35 35 0 0 83 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-44

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Slightly Unstable - 199Ft-3OFt 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 2 NNE 0 0 NE 0 0 ENE 0 0 E 0/ 5 ESE 0 2 SE 0 5 SSE 0 10 S 0 7 SSW 1 14 SW 0 15 WSW 0 11 W 0 12 WNW 0 10 NW 0 4 NNW 0 10 Variable 0 0 Total 2 42 43 19 1 0 107 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-45

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Neutral - 199Ft-30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Spe *ed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 7 19 1 0 0 31 NNE 4 8 5 0 0 0 17 NE 3 21 1 0 0 0 25 ENE 9 15 0 0 0 0 24 E 6 14 0 0 0 0 20 ESE 2 16 0 0 0 0 18 SE 0 18 18 0 0 0 36 SSE 2 30 45 8 0 0 85 S 1 21 51 15 3 0 91 SSW 1 13 52 57 6 0 129 SW 1 21 58 16 1 0 97 WSW 4 29 31 1 1 0 66 W 3 56 59 11 3 0 132 WNW 11 52 33 7 0 0 103 NW 7 34 10 0 0 0 51 NNW 8 27 50 8 0 0 93 Variable 0 0 0 0 0 0 0 Total 66 382 432 124 14 0 1018 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-46

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Slightly Stable - 199Ft-3OFt 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 0 0 0 N 5 1 0 6 0 0 0 NNE 4 15 4 23 0 0 0 NE 3 1i 3 17 0 0 0 ENE 15 7 0 22 I

0 0 0 E 17 5 0 22 0 0 0 ESE 8 26 0 34 0 0 0 SE 4 39 6 49 1 0 0 SSE 5 34 17 57 8 0 0 S 1 18 20 47 15 0 0 SSW 5 14 39 73 1 0 0 SW 6 36 24 67 0 0 0 WSW 8 36 1 45 2 0 0 W 15 31 12 60 0 0 0 WNW 28 35 10 73 0 0 0 NW 20 17 0 37 0 0 0 NNW 5 5 1 11 0 0 0 Variable 0 0 0 0 Total 149 330 137 27 n 0 643 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-47

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Moderately Stable - 199Ft-3OFt 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 0 0 N 0 0 0 0 0 0 0 2 NNE 2 0 0 0 0 0 NE 1 0 0 0 1 0 0 ENE 2 0 0 0 2 0 0 E 7 0 1 0 0 7 0 0 ESE 7 5 0 0 12 0 0 SE 1 0 0 0 1 0 0 SSE 1 0 0 0 1 0 0 2 S 1 1 0 0 4 0 15 SSW 4 7 0 0 0 0 SW 8 3 0 0 11 0 0 WSW 11 14 0 0 25 0 0 W 14 4 0 0 18 0 0 WNW 13 0 0 0 13 0 0 NW 4 0 0 0 4 0 0 NNW 8 1 0 0 9 0 0 Variable 0 0 0 0 0 Total 84 35 4 0 0 0 123 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-48

Braidwood Generating Station Period of Record: October December 2013 Stability Class - Extremely Stable - 199Ft--30Ft Delta-T (F)

Winds Measured at 34 Feet Wind Sp eed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 N 0 0 0 0 0 0 0 NNE 1 0 0 0 1 0 0 NE 5 0 0 0 5 0 0 ENE 4 0 0 0 4 0 0 E 10 j 0 0 0 10 0 0 ESE 3 1 0 0 4 0 0 SE 1 0 0 0 1 0 0 SSE 4 0 0 0 4 0 0 S 0 0 0 0 0 0 0 SSW 1 0 0 0 1 0 0 SW 1 0 0 0 1 0 0 WSW 3 4 0 0 7 0 0 W 8 0 0 0 8 0 0 WNW 4 0 0 0 4 0 0 NW 4 0 .0 0 4 0 0 NNW 2 0 0 0 2 0 0 Variable 0 0 0 0 0 Total 51 5 0 0 0 56 Hours of calm in this stability class: 18 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-49

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Extremely Unstable - 199Ft-3OFt 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 NNE 0 0 NE 0 1 ENE 0 4 E 0 12 ESE 0 3 SE 0 8 SSE 0 9 S 0 7 SSW 0 10 SW 0 9 WSW 0 18 W 0 18 WNW 0 18 NW 0 25 NNW 0 10 Variable 0 0 Total 0 30 42 50 27 3 152 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-50

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Moderately Unstable - 199Ft-3OFt 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 0 0 0 0 1 NE 0 1 1 0 0 0 2 ENE 0 0 1 0 0 0 1 JE 0 1 2 0 0 0 3 ESE 0 2 2 0 0 0 4 SE 1 2 0 0 0 0 3 SSE 1 4 2 0 0 0 7 S 0 1 2 0 0 0 3 SSW 0 0 4 2 2 0 8 SW 0 0 3 3 1 0 7 WSW 0 4 2 3 3 0 12 W 0 2 4 5 2 0 13 WNW 0 2 2 3 2 0 9 NW 0 0 2 2 0 0 4 NNW 0 0 2 1 1 0 4 Variable 0 0 0 0 0 0 0 Total 2 20 30 20 11 0 83 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 F-51

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Slightly Unstable - 199Ft-3OFt 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 0 0 0 1 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 3 0 0 0 5 ESE 0 2 0 1 0 0 3 SE 0 3 1 0 0 0 4 SSE 1 3 4 1 1 0 10 S 0 0 0 2 3 2 7 SSW 0 2 2 5 2 2 13 SW 1 2 3 6 3 0 15 WSW 0 2 1 6 1 0 10 W 0 2 2 7 2 0 13 WNW 0 3 1 6 0 0 10 NW 0 0 6 1 0 0 7 NNW 0 0 5 3 1 0 9 Variable 0 0 0 0 0 0 0 Total 2 22 28 38 13 4 107 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabi lity class: 0 Hours of missing stability measurements in all s tability cl asses: 3 F-52

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Neutral - 199Ft-3OFt 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 7 2 14 1 0 27 NNE 1 5 3 1 0 0 10 NE 0 5 17 4 0 0 26 ENE 1 11 10 0 0 0 22 E 2 6 15 1 0 0 24 ESE 0 3 10 1 0 0 14 SE 0 6 10 22 0 0 38 SSE 0 8 13 33 13 1 68 S 0 2 29 41 19 9 100 SSW 0 3 11 64 51 13 142 SW 4 6 40 38 7 1 96 WSW 0 4 24 25 1 0 54 W 0 13 43 46 14 4 120 WNW 3 7 37 48 20 4 119 NW 1 13 29 29 0 0 72 NNW 0 9 31 39 7 0 86 Variable 0 0 0 0 0 0 0 Total 15 108 324 406 133 32 1018 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-53

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Slightly Stable - 199Ft-3OFt 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 0 0 N 3 0 7 0 0 NNE 13 5 21 0 0 NE 11 4 20 0 0 ENE 11 0 18 0 0 E 10 0 14 0 0 ESE 15 13 29 0 0 SE 24 26 53 SSE 24 27 4 0 58 S 7 22 6 1 39 SSW 5 29 26 0 67 SW 33 33 2 0 75 WSW 30 4 0 0 36 W 43 9 4 0 61 WNW 32 31 5 0 79 NW 32 11 0 0 52 NNW 14 1 0 0 18 Variable 0 0 0 0 0 Total 7 70 307 215 47 647 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sta*bility class: 0 Hours of missing stability measurements in all stability classes: 3 F-54

Braidwood Generating Station Period of Record: October - December 2013 Stability Class - Moderately Stable - 199Ft-3OFt 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 4 NNE 0 0 NE 0 0 ENE 1 4 E 2 2 ESE 4 7 SE 2 8 SSE 3 3 S 1 3 SSW 1 5 SW 8 13 WSW 11 18 W 15 25 WNW 9 10 NW 12 13 NNW 8 9 Variable 0 0 Total 13 81 29 0 0 124 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabili ty class: 0 Hours of missing stability measurements in all stability cl asses: 3 F-55

Braidwood Generating Station Period of Record: October - December 2013 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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 3 22 37 12 0 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-56

APPENDIX G ERRATA DATA

Intentionally left blank Teledyne Brown Engineering Detector 08 Due to an incorrect setting on Teledyne Brown Engineering's gamma detector 08, 3.29 rather than 4.66 was used in the minimum detectable concentration (MDC) calculation. Nonconformance 13-07 was initiated and corrective actions have been implemented to address this issue. All samples counted on detector 08 were reprocessed using the correct calculation. As a result, all MDCs for these samples have increased by 41.6%. The previously reported activities and uncertainties were not affected. In some cases, the increased MDC resulted in missed LLDs.

All samples with MDCs affected by this issue follow. The samples with missed LLDs are shown in the table for 2011, 2012, and 2013. All other required LLDs were met.

G-1

2011 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS BD-25 12/01/11 12/29/11 Surface Water ....

Required LLDs were achieved.

G-2

2012 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS 1Q12 BD-02 12/29/11 03/29/12 Air Particulate ....

1Q12 BD-04 12/29/11 03/29/12 Air Particulate ....

1Q12 BD-06** 12/29/11 03/29/12 Air Particulate ....

1Q12 BD-20 12/29/11 03/29/12 Air Particulate ....

1Q12 BD-21 12/29/11 03/29/12 Air Particulate ....

BD-38 01/05/12 01/26/12 Surface Water 1-131 <15 <19.43 pCi/L BD-56 01/05/12 01/26/12 Surface Water 1-131 <15 <20.19 pCi/L BD-36 01/19/12 01/19/12 Ground Water 1-131 <15 <16.56 pCi/L BD-36 01/19/12 01/19/12 Ground Water La-140 <15 <17.83 pCi/L BD-18 03/01/12 03/01/12 Milk ....

2Q12 BD-03 03/29/12 07/05/12 Air Particulate ....

2Q12 BD-21 03/29/12 07/05/12 Air Particulate ....

BD-35 04112112 04-12/12 Ground Water 1-131 <15 <15.01 pCi/L BD-35 04/12/12 04/12/12 Ground Water La-140 <15 <18.28 pCi/L BD-18 05/17/12 05/17/12 Milk ....

BD-17 05/31/12 05/31/12 Milk ...

BD-40 06/07/12 06/26/12 Surface Water 1-131 <15 <16.91 pCi/L BD-18 06/26/12 06/26/12 Milk ....

3Q12 BD-05 07/05/12 10/04/12 Air Particulate ....

BD-40 07/05/12 07/26/12 Surface Water 1-131 <15 <19.17 pCi/L BD-40 07/05/12 07/26/12 Surface Water La-140 <15 <15.68 pCi/L BD-13 07/12/12 07/12/12 Ground Water ....

BD-51 07/12/12 07/12/12 Ground Water ....

BD-18 07/12/12 07/12/12 Milk La-140 <15 <17.34 pCi/L Aug12 BD-22 08/02/12 08/30/12 Drinking Water 1-131 <15 <21.23 pCi/L BD-38 08/02/12 08/30/12 Surface Water ....

BD-18 08/09/12 08/09/12 Milk ....

Sep12 BD-22 08/30/12 09/27/12 Drinking Water ....

BD-18 09/06/12 09/06/12 Milk * *

BD-QUAD 4 09/19/12 09/19/12 Vegetation 1-131 <60 <62.64 pCi/Kg Wet 4Q12 BD-03 10/04/12 01/03/13 Air Particulate ....

BD-40 10/04/12 10/25/12 Surface Water ....

BD-50 10/11/12 10/11/12 GroundWater ....

BD-18 10/18/12 10/18/12 Milk La-140 <15 <16.27 pCi/L BD-18 11/01/12 11/01/12 Milk La-140 <15 <17.01 pCi/L

Required LLDs were achieved.

- In one sample analyzed in 2012, the naturally occurring isotope of Beryllium-7 was originally detected. Due to the higher MDC after the calculation correction, the Beryllium-7 was no longer detected.

G-3

2012 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS MW-11 11/13/12 RGPP 1-131 <15 < 19.07 pCi/L MW-11 11/13/12 RGPP La-140 <15 <17.02 pCi/L MW-159D 11/13/12 RGPP 1-131 <15 <19.07 pCi/L SW-104 11/13/12 RGPP ....

MW-113 11/14/12 RGPP ....

BD-56 12/06/12 12/27/12 Surface Water ....

BD-18 12/07/12 12/07/12 Milk ....

P-2D 12/13/12 RGPP ....

Required LLDs were achieved.

G-4

2013 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS BD-40 01/03/13 01/31/13 Surface Water 1-131 <15 <16.93 pCi/L BD-40 01/03/13 01/31/13 Surface Water La-140 <15 <19.51 pCi/L BD-18 01/04/13 01/04/13 Milk La-140 <15 <16.26 pCi/L BD-18 03/07/13 03/07/13 Milk

Required LLDs were achieved.

G-5

Figure C-12 Graph Figure C-12 of the Appendix C Data Tables and Figures for the 2012 Annual Radiological Environmental Operating Report (AREOR) incorrectly displays the tritium data for groundwater wells BD-50 (Skole Well) and BD-51 (Fatlan Well). The data series selection for the 2012 tritium results of BD-50 and BD-51 did not include the actual value but the "less than symbol (<) preceding the value. The following pages display the graphing error in 2012 and the correction for the 2013 AREOR.

G-6

2012 Figure C-12 Graph BD-50 Skole Well 1000 900 800 700 600

-J C., 500 a.

400 300 200 100 0

01-01-07 03-14-08 05-26-09 08-07-10 10-19-11 12-30-12 BD-51 Fatlan Well 600 +

500 400

-I C..)

0. 300 200 100 0i 01-03-07 03-16-08 05-28-09 08-09-10 10-21-11 01-01-13 G-7

2013 Figure C-12 Graph BD-50 Skole Well 1000 900 800 700 600

-J 500 a.

400 300 200 100 0

01-01-07 05-26-08 10-19-09 03-14-11 08-06-12 12-30-13 BD-51 Fatlan Well 600 -

500 +

400 t

-J

a. 300 +

200 100 0i I I I I 01-03-07 05-28-08 10-21-09 03-16-11 08-08-12 01-01-14 G-8

APPENDIX H ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

Intentionally left blank Docket No: 50-456 50-457 BRAIDWOOD STATION UNITS I and 2 Annual Radiological Groundwater Protection Program Report 1 January through 31 December 2013 Prepared By Teledyne Brown Engineering Environmental Services Exeion 1rsý)e;1 jot11jn.11ý, fj-aý'L,i.oýn Braidwood Station Braceville, IL 60407 May 2014

Intentionally left blank Table Of Contents I. Sum m ary and Conclusions .......................................................................................... 1 I1. Introduction ............................................................................................................. 2 A. O bjectives of the RG PP .................................................................................. 2 B. Im plem entation of the O bjectives .................................................................. 2 C. Program Description ...................................................................................... 3 D. Characteristics of Tritium (H-3) ...................................................................... 3 Ill. Program Description ................................................................................................ 4 A. Sam ple Analysis ............................................................................................ 4 B. Data Interpretation .......................................................................................... 4 C. Background Analysis ..................................................................................... 5

1. Background Concentrations of Tritium ................................................. 6 IV. Results and Discussion ............................................................................................ 7 A. Missed Sam ples .............................................................................................. 7 B. G roundwater Results ..................................................................................... 8 C. Surface W ater Results .................................................................................. 9 D. Drinking W ater W ell Survey ......................................................................... 10 E. Summary of Results - Inter-laboratory Comparison Program ...................... 10 F. Leaks, Spills, and Releases ......................................................................... 10 G . Trends .......................................................................................................... 10 H. Investigations ................................................................................................ 10 I. Actions Taken ................................................................................................ 10

Appendices Appendix A Location Designation Tables Table A-1 Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2013 Figqures Figure A-1 Sampling Locations near the Site Boundary of the Braidwood Station, 2013 Figure A-2 Intermediate Sampling Locations of the Braidwood Station, 2013 Figure A-3 Distant Sampling Locations of the Braidwood Station, 2013 Appendix B Data Tables Tables Table B-1.1 Concentrations of Tritium, Strontium, Gross Alpha and Gross Beta in Groundwater Samples Collected in the Vicinity of Braidwood Station, 2013.

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

Table B-1.3 Concentrations of Hard-To-Detects in Groundwater Samples Collected in the Vicinity of Braidwood Station, 2013.

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

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

ii

I. Summary and Conclusions In 2013, 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 2013. During that time period, 677 analyses were performed on 281 samples from 90 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 Braidwood's 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 77 of 285 analyses. The tritium concentrations ranged from 196 +/- 108 pCi/L to 3,200 +/- 368 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 2013. Gross Alpha (dissolved) was detected in ten groundwater and surface water samples. The concentrations ranged from 0.6 to 10.0 pCi/L. Gross Alpha (suspended) was detected in three groundwater samples. The concentrations ranged from 3.2 to 5.9 pCi/L. Gross Beta (dissolved) was detected in 53 groundwater and surface water samples. The concentrations ranged from 1.1 to 86.3 pCi/L. Gross Beta (suspended) was detected in three groundwater samples. The concentrations ranged from 6.1 to 9.6 pCi/L.

Hard-To-Detect or difficult to measure nuclides were not sampled or analyzed in 2013.

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 2013.

A. Objective of the RGPP The long-term objectives of the RGPP are as follows:

1. Identify suitable locations to monitor and evaluate potential impacts from station operations 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.

Ill. 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 2013.

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, 1-131, 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 USEPA's RadNet database. GNIP provides tritium precipitation concentration data for samples collected world wide from 1960 to 2013.

RadNet provides tritium precipitation concentration data for samples collected at stations through out the U.S. from 1960 up to and including 2013. 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 Radiological Groundwater Protection Program (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, MW-1 03, MW-1 10, VB-10-1, VBI-1, MW-5, MW-6, MW-11, MW-BW-201S, SG-BW-1 02, and OWM31 P are detection wells. The station RGPP requires the wells designated as detection wells to be sampled and analyzed for tritium on a quarterly basis. The aforementioned wells were not sampled during one or more of the quarters in 2013. Reasons for lack of sampling include well condition deficiencies, low well production, frozen water preventing sampling, and remediation pumps not running.

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. OWM31 P, MW-103, RW-7, RW-9, RW-10, and RW-5 did not have these analyses performed during 2013. The sample is pulled on an annual periodicity and the sample was not able to be obtained for the requisite analyses.

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 3,200 pCi/I These wells are located onsite and are not available as a drinking water source. Some contamination still exists and monitoring is ongoing (Table B-1.1, Appendix B).

Strontium Strontium-89 and Strontium-90 were analyzed for in 38 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-1.1, 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 2013. Gross Alpha (dissolved) was detected in ten groundwater and surface water samples. The concentrations ranged from 0.6 to 10.0 pCi/L. Gross Alpha (suspended) was detected in three groundwater samples.

The concentrations ranged from 3.2 to 5.9 pCi/L. Gross Beta (dissolved) was detected in 53 groundwater and surface water samples. The concentrations ranged from 1.1 to 86.3 pCi/L. Gross Beta (suspended) was detected in three groundwater samples.

The concentrations ranged from 6.1 to 9.6 pCi/L. Gross alpha and gross beta are routinely seen in environmental samples and are not necessarily attributable to Station's effluents (Table B-1.1, Appendix B).

Hard-To-Detect Hard-To-Detect analyses were not performed in 2013 (Table B-1.3, Appendix B).

Gamma Emitters Naturally occurring K-40 was detected in seven samples. The concentrations ranged from 40 to 117 pCi/L. No other gamma emitting nuclides were detected in any of the samples analyzed.

(Table B-1.2, Appendix B)

C. Surface Water Results Surface Water Samples were collected from ten 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-I.1, Appendix B). Tritium values ranged from the minimum detection limit to 615 pCi/l.

Strontium Strontium-89 and strontium-90 were not analyzed in 2013 (Table B-11.1, Appendix B).

Gamma Emitters Naturally occurring K-40 was detected in two samples. The concentrations ranged from 45 to 55 pCi/L. No other gamma emitting nuclides were detected in any of the samples analyzed (Table B-11.2, Appendix B).

D. Drinking Water Well Survey Requested drinking water wells near Braidwood Station were sampled on a quarterly basis in 2013.

E. Summary of Results - Inter-Laboratory Comparison Program j

Inter-Laboratory Comparison Program results for TBE are presented in the AREOR.

F. Leaks, Spills, and Releases Previously identified contaminated groundwater plumes are being addressed by the Braidwood Station tritium remediation activities.

There were no liquid leaks, spills, or releases in 2013 that affected groundwater.

G. Trends and Analyses Monitoring of remediation activities indicate that tritium concentrations in affected areas are trending down.

H. Investigations Investigation of historic spills and the groundwater contamination has resulted in groundwater remediation activities at Braidwood Station.

1. Actions Taken

1. Compensatory Actions All Circulating Water Blowdown valve vaults were lined to prevent any leakage of water from the vaults to the groundwater. A remote leakage detection system has been installed which provides continuous monitoring of the vaults. Operations procedures are in place for actions to take in the event the leak detection system alarms.

Walkdowns of the Circulating Water Blowdown pipeline and vaults were performed weekly.

2. Installation of Monitoring Wells Exelon has installed a permanent monitoring well network that ensures that ground water will be appropriately monitored around the plant and at the various remediation sites. Monitoring well locations were based on contamination source, ground flow direction, and source concentration. Some monitoring points are not primarily used for sampling but rather to measure ground water elevation. Water elevation is used extensively around active remediation sites to verify that ground water is still flowing toward remediation wells. The Station's RGPP was modified between second and third quarter 2013 to reduce the number of surface water and groundwater sample points due to the completion of remedial efforts that were ongoing up through the second' quarter of 2013.

3. Actions to Recover/Reverse Plumes Vacuum Breaker 1 area: Three remediation wells have been installed in this area to remove contaminated ground water. Monitoring of this activity indicates the remediation is proceeding acceptably.

Vacuum Breaker 2 & 3 area: Remediation at vacuum breaker 2 and 3 are complete. Remediation efforts have been satisfied as communicated by the IEPA completion report dated March 28, 2013.

Vacuum Breaker 4: Remediation at vacuum breaker 4 is complete.

Remediation efforts have been satisfied as communicated by the IEPA completion report dated December 19, 2011.

Vacuum Breaker 6 & 7: Monitoring wells have been installed within and down gradient of these plumes which originated from vacuum breaker valves along the blowdown line. These sites are being remediated by monitored natural attenuation.

Exelon Pond area: The combination of groundwater sample monitoring and water level monitoring ensures that the active remedial pumping of Exelon Pond continues to capture the tritium that spilled from vacuum breakers 2 and 3 almost ten years ago. Monitoring to date has shown marked reduction in the most contaminated area and the station continues to monitor plume capture to determine whether adjustments are needed in the pumping rate.

11-

Intentionally left blank APPENDIX A LOCATION DESIGNATION

Intentionally left blank TABLE A-i: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2013 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 X

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-1iD 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-i05 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-1 13DR Monitoring Well MW-13 Monitoring Well MW-130D Monitoring Well MW-131D Monitoring Well MW-132D Monitoring Well A-1

TABLE A-i: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2013 Station Code Sample Description MW-i 33D 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 If 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-2011 Monitoring Well MW-BW-201 S Monitoring Well MW-BW-2021 Monitoring Well MW-BW-202S Monitoring Well MW-BW-2031 Monitoring Well MW-BW-203S Monitoring Well MW-BW-2041 Monitoring Well MW-BW-2051 Monitoring Well MW-BW-2061 Monitoring Well MW-BW-2071 Monitoring Well MW-BW-208BD 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 RW-6 Monitoring Well A-2

TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2013 Station Code Sample Description 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 j 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 VBI-10 Monitoring Well VB1-10D Monitoring Well VB11-1 Monitoring Well VB1-li 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 VB13-6 Monitoring Well A-3

TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2013 Station Code Sample Description 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 VB2-1 1D 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 WeO 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 OWM31 P Monitoring Well A-4

Figure A-1 Sampling Locations near the Site Boundary of Braidwood Station, 2013 A-5

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LtU oH Ji I

0 K'

a-AV 0

9 F 0coo 5,->

I2111 S& ii

'I Figure A-2 Sampling Locations near the Site Boundary of Braidwood Station, 2013 A-6

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I

~~ '4,

-Cj I I b

wl F

-. -~ 4, 0 4

'V 41 0

I 00 0

Ah I I a

Io 42) 44 4- 4 0

-G

~4 4* ~kk444 a- \ kJ~~

v~t~ o a- 0 34 42 44k a

0 0 0 0 44 4' 4-9 8 11

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4 0

4

-'4 Figure A-3 Distant Sampling Locations of the Braidwood Station, 2013 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, 2013 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 03/29113 < 181 BL-03 04/20/13 < 164 BL-03 09/06/13 < 189 BL-03 10/15/13 < 197 BL-11 03/28/13 < 161 BL-11 04125/13 < 165 BL-11 09/28/13 < 182 BL-1I 09/28/13 < 195 BL-11 10/15/13 < 200 BL-21 03/19/13 < 169 BL-21 06/11/13 < 164 BL-22 03/18/13

167 BL-22 06/12/13 < 162 BL-23 03/19/13 < 171 BL-23 06/11/13 < 162 BL-24 03/18/13 < 166 BL-24 06/12/13 < 160 BL-25 03/19/13 < 163 BL-25 06/11/13 < 163 BL-26 03/18/13 < 161 BL-26 06/11/13 < 159 BL-27 03/19/13 < 166 BL-27 06/12/13 < 156 F-iD 03/20/13 < 189 F-AD 06/13/13 < 182 F-iD 09123(13 < 182 F-1D 12/17/13 < 176 F-3D 03/20/13 < 188 F-3D 06/13/13 < 189 F-3DR 12/18/13 < 167 F-4D 03/20113 < 168 F-4D 06/13/13 < 187 F-4D 09/24/13 < 178 F-4D 12/18/13 < 167 F-5D 03/19/13 < 170 F-51D 06/13/13 < 186 F-5D 09/23/13 < 182 F-5D 12/17/13 < 172 F-6D 03/20/13 < 170 F-6D 06/13/13 < 187 F-6D 09/23/13 < 178 F-6D 12/18/13 < 166 F-8D 03/20/13 < 188 F-8D 06/13/13 < 189 F-8D 09/24/13

188 F-8D 12/18/13 < 169 F-9D 03/20/13 < 169 F-9D 12/18/13 < 168 MW-102R 03/28/13 < 163 MW-102R 04/25/13 < 164 MW-102R 09/06113 < 193 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, 2013 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-102R 10/15/13 < 196 MW-103 04/20/13

166 0.7 +/- 0.3 3.2 +/- 1.2 1.1 +/-0.6 9.6 +/- 1.7 MW-109D 03/28/13 < 163 MW-109D 04/25/13 < 167 < 0.8 < 0.4 1.9 +/-1.0 < 1.6 MW-109D 09122113 < 177 <3.8 <0.5 MW-109D 09/22/13 < 198 MW-109D 10/06/13 < 197 MW-1l 03/27/13 249 +/- 116 MW-1l 05/02/13 372 +/- 132 < 1.3 < 0.6 5.1 +/-1.2 < 1.6 MW-il 09/08/13 497 +/- 146 < 2.7 < 0.6 MW-11O 04/03/13 < 167 MW-11o 04/20/13

181 < 1.4 < 0.7 13.2 +/-1.5 < 1.7 MW-111DR 03/29/13 < 173 MW-111DR 04/20/13 < 165 < 0.6 5.9 +/- 2.1 < 0.9 8.9 +/- 2.1 MW-111 DR 09/28/13

195 < 5.5 < 0.6 MW-1 11 DR 10/06/13 < 194 MW-1 12D 03/29/13 < 180 MW-1 12D 04/20/13 < 172 < 1.1 < 0.7 1.9 +/- 1.0 < 1.7 MW-112D 09/25/13 < 195 < 6.2 < 0.6 MW-112D 10/18/13 < 189 MW-1 13 03/28/13 < 158 MW-1 13 04/20/13 < 165 0.9 +/- 0.4 < 0.7 2.6 +/- 0.7 < 1.7 MW-113 09/28/13

189 < 5.2 < 0.5 MW-1 13 10/18/13 < 188 MW-13 03/27/13 956 +/- 154 MW-13 05/03/13 274 + 126 < 0.8 < 0.3 < 1.2 < 1.6 MW-130D 03/28/13 < 156 MW-130D 04/25/13 < 168 < 1.0 < 0.3 3.8 +/- 1.0 < 1.4 MW-130D 09/22/13 < 190 < 3.2 < 0.5 MW-130D 10/06/13 < 194 MW-1 31D 03/29/13 < 170 MW- 131D 04/20113 < 167

1.3 < 0.7 3.8 +/- 1.1 < 1.7 MW- 131D 09/25/13 < 196 < 6.8 < 0.7 MW-1 31D 10/06/13

197 MW-134D 03/29/13 < 181 MW-134D 04/20/13 < 165 0.6 +/- 0.4 < 0.7 2.5 +/- 0.8 < 1.7 MW-134D 09/25/13 < 194 < 5.5 < 0.5 MW-134D 10/18/13 < 186 MW-135D 03/19/13 < 164 MW-135D 06/12/13 < 187 MW-135D 09/24/13 < 181 < 3.7 < 0.3

0.7 < 0.4 1.7 +/- 0.9 < 1.5 MW-135D 12/19/13 < 176 < 6.3 < 0.9 < 1.4 < 0.8 < 3.0 < 1.4 MW-136D 03119/13 < 167 MW-136D 06/12/13 < 178 MW-136D 09/24/13 < 182 < 3.9 < 0.5 < 0.8 < 0.6 3.3 +/- 1.1 < 1.9 MW-136D 12/19/13

175 < 5.8 < 0.9

1.4 < 0.8 < 2.7 < 1.4 MW-137D 03/19/13 < 165 MW-137D 06112113 < 181 MW-137D 09/24/13 < 179 < 4.0 < 0.6 < 0.7 < 0.6 2.3 +/- 0.9 < 1.9 MW-137D 12/19/13 < 177 < 6.9 < 0.9 < 1.2 < 0.8 < 2.4 < 1.4 MW-138D 03/19/13 < 167 B-2

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 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-138D 06/12/13 < 189 MW-1 380 09/24113 < 173 < 4.4 < 0.5 < 1.0 < 0.4 2.3 +/- 1.1 < 1.5 MW-138D 12/19/13 < 180 < 5.3 < 0.9 <1.1 < 0.8 < 2.8 < 1.4 MW-139D 03/20/13 < 191 MW-139D 06112113

160 MW-139D 09/24/13 < 177 < 3.8 < 0.5 1.7 +/- 0.8

0.6 27.6 +/- 1.8 < 1.9 MW-139D 12/19/13 < 177 < 6.7 < 0.9 < 1.9 < 0.8 < 2.7 < 1.4 MW-14 05/03/13 254 +/- 128 < 0.9 < 0.3 14.8 +/- 1.4 < 1.6 MW-141D 03/28/13 535 +/- 148 MW-141D 05/01/13 917 +/- 160 < 7.6

1.0 86.3 +/- 6.9 < 2.7 MW-141D 10/25/13 705 +/- 143 MW-142D 03/21/13 1770 +/- 237 MW-142D 04/30/13 2090 +/- 258 < 7.2 < 1.4 52.4 +/- 7.7 < 2.0 MW-142D 09/21/13 2010 +/- 254 < 4.0 < 0.6 MW-142D 10/25/13 1460 +/- 208 MW-143D 03/21/13 < 192 MW-143D 05/02/13 455 +/- 135 < 1.4

0.6 6.2 +/- 1.3 < 1.6 MW-143D 11/13/13

181 MW-144D 03/22/13 2930 +/- 344 MW-144D 04/25/13 3200 +/- 368 < 0.6 < 0.8 5.3 +/- 0.9 < 1.6 MW-144D 09/08/13 2430 +/- 292 < 2.4 < 0.5 MW-144D 11/13/13 2970 +/- 351 MW-145D 03/19/13 < 166 < 5.0 < 1.0

0.6 < 0.9 < 1.1 < 1.6 MW-145D 06/13/13 < 187

6.3 < 0.6 < 0.7 < 0.4 < 1.1 < 2.1 MW-145D 09/24/13 < 178 MW-145D 12/18/13 < 180 < 6.2 < 1.0 < 1.1 < 0.7 < 2.5 < 1.9 MW-154 04/25/13 249 +/- 115 < 0.6 < 0.3 2.0 +/- 0.7 < 1.4 MW-154 12/04/13

175 MW-155 04/25/13 266 +/- 118 < 1.1 < 0.3 5.0 +/- 1.1 < 1.4 MW-155 12/04/13 330 +/- 131 MW-158D 03/20/13 < 189 MW-158D 06/12/13 < 160 MW-158D 09/24/13

179 < 4.6

0.7 1.1 +/- 0.7 < 0.6 29.4 +/- 1.7 < 1.9 MW-158D 12/18/13 < 165 < 5.9 < 0.5 1.0 +/- 0.6 < 0.8 29.7 +/- 1.4 < 1.4 MW-159D 05/01/13 410 +/- 123 < 1.2 < 0.7 6.6 +/- 1.2 < 1.6 MW- 159D 12/04/13

194 MW-161D 03/22/13 586 +/- 153 MW-161D 04/25/13 421 +/- 122 < 1.0 < 0.4 7.3 +/- 1.3 < 1.6 MW-1 62D 03/27/13 771 +/- 161 MW-162D 04/25/13 792 +/- 143 < 0.9 < 0.8 5.6 +/- 1.1 < 1.6 MW-162D 09/08/13 716 +/- 158 < 2.2 < 0.6 MW-162D 11/13/13 724 + 146 MW-2 03/21/13 1590 + 212 MW-2 04/02/13 1450 +/- 197 1.6 +/- 0.8 < 0.7 3.3 +/- 1.0 < 1.7 MW-2 09/08/13 997 +/- 173 < 3.6 < 0.8 < 1.1 < 0.5 14.7 +/- 1.4 < 1.5 MW-2 10/25/13 2690 +/- 323 MW-22 03/21/13 848 + 164 MW-22 05/02/13 819 `149 < 1.1 < 0.6 3.5 +/- 1.1 < 1.6 MW-4 03/21/13 2440 +/- 295 MW-4 04/30/13 2190 +/- 269 < 1.9 < 0.7 4.2 +/- 1.3 < 1.6 MW-4 09/14/13 1710 +/- 227 < 4.5 < 0.5 < 1.0 < 0.4 5.5 +/- 1.2 < 1.7 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, 2013 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-4 10/25/13 1580 +/- 217 MW-5 03/22/13 1550 +/- 208 MW-5 04/25/13 949 +/- 153 0.9 +/- 0.6 < 0.4 2.7 +/- 0.9 < 1.6 MW-5 09/08/13 970 +/- 162

2.7

0.7 < 1.1 < 0.5 2.2 +/- 0.9 < 1.5 MW-6 03/27/13 1410 +/- 197 MW-6 04/30/13 1600 +/- 212 < 3.9

1.8 5.5 +/- 2.9 < 3.9 MW-6 09/21/13 1460 +/- 202 <4.1

0.5

2.9

0.6 8.3 +/- 2.2 < 2.8 MW-7 03/22/13 1600 +/- 211 MW-7 05/02/13 1440 +/- 197 < 2.1

1.6 5.2 +/- 2.7 < 3.6 MW-7 09/14/13 1560 +/- 214

6.8

0.6 < 1.5 4.0 +/- 1.2 4.8 +/- 1.2 6.1 +/- 1.1 MW-7 10/25/13 1020 +/- 167 MW-9 03/22/13 362 +/- 123 MW-9 05/02/13 472 +/- 137

1.5

0.6 7.0 +/- 1.3 < 1.6 MW-BW-141D 09/14/13 618 +/- 157

6.7

0.5 MW-BW-143D 09/14/13 235 +/- 133

8.2

0.5 MW-BW-201S 03/27/13 201 +/- 129 MW-BW-201 S 05/01/13 453 +/- 137

2.5

1.3 15.8 +/- 2.8 < 3.0 MW-BW-201 S 09/21/13 458 +/- 144

3.6

0.5 MW-BW-202S 03/25/13 191 MW-BW-202S 05/01/13 212 +/- 123 < 4.0

0.3 10.8 +/- 1.8 < 1.6 MW-BW-202S 09/14/13 218 +/- 133

6.5

0.4 MW-BW-202S 11/13/13 208 +/- 122 MW-BW-203S 03/25/13 194 MW-BW-203S 05/01/13 296 +/- 119

0.7

0.4 5.9 +/- 1.1 < 1.7 MW-BW-203S 09/14/13 261 +/- 135 < 7.3

0.6 MW-BW-203S 11/13/13 380 +/- 128 MW-BW-2071 03/21113 556 +/- 151 MW-BW-2071 04/30/13 510 +/- 132 *3.1

1.5 14.6 +/- 2.7 < 3.2 MW-BW-2071 10/25/13 341 +/- 126 OWM31P 03/28/13

159 OWM31P 05/03/13

181 10.0 +/- 2.3 < 0.3 51.0 +/- 2.4 < 1.6 P-2D 03/19/13

169 P-2D 06/12/13

177 P-2D 09/24/13 < 178 P-2D 12/19/13 < 5.4 < 0.9 < 0.9 < 0.8 3.6 +/- 1.7 < 1.4 P-4D 03/19/13 1040 +/- 159 P-4D 06/12/13 1320 +/- 182 PW-006 01/08/13 193 PW-006 04/16/13 177 PW-006 07/15/13 193 PW-006 10/22/13 176 PW-006A 07/15/13 193 PW-006A 10/22/13 173 PW-006P 04/16/13 178 PW-006P 07/15/13 190 PW-006P 10/22/13 184 PW-01 1 01/08/13 196 PW-011 04/16/13 181 PW-01 1 07/15/13 190 PW-011 10/22/13 170 PW-01 1 10/22/13 179 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, 2013 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)

PW-013 01/08/13 < 195 PW-013 04/16/13 < 177 PW-013 07/15/13 < 195 PW-013 10/22/13 < 172 PW-015 01/08/13 < 192 PW-015 04/16/13 < 180 PW-01 5 07/15113 < 193 PW-015 10/22/13 < 176 PW-016 01/08/13 < 195 PW-016 04/16/13 < 183 PW-016 07/15/13 < 192 PW-016 10/22/13 < 173 RW-10 10/15/13 < 193 RW-5 09/22/13 < 190 < 3.6 < 0.5 RW-7 10/06/13 < 200 RW-9 10/15/13 < 189 VB-10-1 03118113 < 164 VB-10-1 06/11/13 < 162 VB-10-1 09/23/13 < 180 VB-10-1R 12/18113 < 170 VB1-1 03/28/13 < 188 VB1-1 04/25/13 Origi nal 327 +/- 116 VB1-1 04/25/13 Rec( ount 294 +/- 114 VB1-1 04/25/13 Rear nalysiss 405 +/- 122 VB1-1 09/22/13 212 +/- 128 VB-11-1 03/19/13 < 166 VB-11-1 06/12/13 < 159 VB-11-1 09/24/13 < 181 VB-11-1 12/18/13 < 167 VB-2-6D 03/29/13 < 179 VB-2-6D 04/20/13 < 165 < 0.4 < 0.7 2.7 +/- 0.8 < 1.7 VB-3-2 03/28/13 < 161 VB-3-2 06/05/13 < 176 VB-3-2 09/06/13 < 189 VB-4-1 03/18/13 < 180 VB-4-1 06/12/13 < 162 VB-4-1 09/23/13 < 180 VB-4-1 12/18/13 < 176 VB-5-2 03/20/13 < 189 VB-5-2 06/11/13 < 162 VB-5-2 09/23/13 < 178 VB-5-2 12/18/13 < 167 VB-6-1 03118/13 < 167 VB-6-1 06/11/13 < 159 VB-6-1 09/23/13 < 175 VB-6-1 12/17/13 < 166 VB-7-1 03/18/13 < 191 VB-7-1 06111113 < 163 VB-7-1 09/23/13 < 177 VB-7-1 12/17/13 < 168 VB-8-2R 03/18/13 < 168 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, 2013 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)

VB-8-2R 06/11/13 < 163 VB-8-2R 09/23/13 < 179 VB-8-2R 12/17/13 < 168 VB-9-1 03/18/13 < 163 VB-9-1 06/11/13 < 163 VB-9-1 09/23/13 < 178 VB-9-1 12/17/13 < 172 B-6

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 DATE MW-103 04(20/13 < 22 <21 <2 <3 <6 <2 <4 <3 <4 <11 <2 <2 <20 <7 MW-109D 04/25/13 < 18 <34 <2 <2 <4 <2 <4 <2 <4 <9 <2 <2 <17 <5

<1 <1 <3 <1 <2 <1 <3 <11 <1 <1 <16 <5 MW-il 05/02/13 < 13 <10

<3 <5 < 13 < 2 < 2 < 23 < 6 MW-l11 04/20/13 < 24 47 30 < 2 <2 <5 <2 <5 MW-111DR 04/20/13 < 22 <20 <2 <2 <6 <2 <4 <3 <4 <11 <2 <2 <21 <7 MW-1 12D 04/20/13 < 22 <19 <2 <2 <5 <2 <4 <2 <4 <11 <2 <2 <20 <6 MW-113 04/20/13 < 22 <35 <2 <2 <5 <2 <4 <2 <4 <11 <2 <2 <19 <6 MW-13 05/03113 < 14 <29 < 1 <1 <3 <1 <3 <1 <2 <10 <1 <1 <16 <5 MW-130D 04/25/13 < 23 <44 < 2 <2 <5 <2 <4 <2 <4 <10 <2 <2 <20 <5 MW-131D 04/20/13 < 19 <37 <2 <2 <5 <2 <4 <2 <4 <9 <2 <2 <19 <7 MW-134D 04/20/13 < 25 57 +31 <2 <3 <6 <2 <4 <3 <5 <12 <2 <3 <23 <6 MW-135D 09/24/13 < 48 < 85 <4 <5 <12 <4 <7 <5 <10 <15 <4 <4 <32 <11 MW-1350 12/19/13 < 41 <44 <5 <5 <11 <5 <10 <6 <9 < 12 < 5 < 5 < 29 < 12 MW-1360 09/24/13 < 38 <44 <4 <5 <9 <4 <8 <4 <8 < 14 < 4 < 4 < 29 < 11 MW-136D 12/19/13 < 39 <77 <4 <5 <10 <4 <9 <5 <8 < 15 < 4 < 4 < 30 < 10 MW-137D 09/24/13 < 37 < 30 <4 <4 <10 <5 <9 <4 <7 <13 <4 <4 <27 <8

<4 <5 <11 <3 <9 <5 <9 <14 <3 <4 <32 <10 MW-137D 12/19/13 < 46 < 34

<4 <5 <11 <5 <8 <5 <7 <14 <4 <4 <32 <9 MW-138D 09/24/13 < 35 <84 MW-138D 12/19/13 < 41 <51 <5 <5 <12 <5 <10 <6 <9 <15 <5 <5 <34 <11 MW-139D 09124/13 < 42 <39 < 5 <5 <11 <4 <10 <6 <8 <14 <4 <5 <31 <11 MW-139D 12/19/13 < 36 < 82 <4 <5 <11 <6 <9 <5 <8 <15 <4 <5 <36 <9 MW-14 05/03/13 < 15 <13 <1 <2 <4 <1 <3 <2 <3 <13 <1 <1 <18 <7 MW-141D 05/01/13 < 16 117 +/- 28 < 1 <2 <4 <1 <3 <2 <3 <15 <1 <2 <21 <7 42 +/- 22 < 1 <1 <3 <1 <2 <1 <2 <10 <1 <1 <14 <5 MW-142D 04/30/13 < 12

<13 <1 <1 <3 <1 <2 <1 <3 < 11 <1I < 1 < 18 <5 MW-143D 05/02/13 < 14 MW-144D 04/25/13 < 23 <20 <2 <2 <5 <2 <4 <3 <4 <11 <2 <2 <20 <6 MW-145D 03/19/13 < 42 <42 < 5 <5 <11 <5 <10 <5 <8 <7 <5 <5 <23 <8 MW-145D 06/13/13 < 38 <77 <4 <4 <9 <5 <8 <5 <8 <7 <4 <5 <21 <6 MW-145D 12/18/13 < 36 <36 <3 <4 <9 <4 <9 <5 <8 <12 <4 <4 <24 <9 MW-154 04/25/13 < 21 <35 <2 <2 <5 <2 <4 <2 <4 <10 <2 <2 <18 <7 MW-155 04/25/13 < 20 <18 <2 <2 <5 <2 <4 <2 <4 <9 <2 <2 <18 <5 MW-158D 09/24/13 < 36 <34 <4 <4 <8 <5 <7 <5 <9 <13 <4 <4 <29 <10 MW-158D 12/18/13 < 51 < 103 < 6 <6 <11 <6 <13 <6 <10 <14 <5 <6 <37 <12 MW-159D 05/01/13 < 16 40 +/- 26 < 2 <2 <4 <2 <3 <2 <3 <11 <1 <2 <18 <6

TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 r)ATF DATE MW-161D 04/25/13 < 26 < 25 < 3 <3 <7 <3 <6 <3 <5 <11 <2 <3 <23 <8

< 19 < 34 < 2 <2 <5 <2 <4 <2 <4 <9 <2 <2 <17 <6 MW-162D 04/25/13 MW-2 04/02/13 < 25 < 21 < 2 <3 <8 <2 <5 <3 <5 <46 <2 <2 <50 <17 MW-2 09/08/13 < 16 < 14 < 2 <2 <4 <1 <3 <2 <3 <11 <1 <2 <16 <5 05/02/13 < 16 < 13 < I <2 <4 <1 <3 <2 <3 <12 <1 <1 <20 <6 MW-22

< 12 < 1 <2 <3 <1 <3 <2 <3 <14 <1 <1 <19 <6 MW-4 04130/13 < 14 09/14/13 < 17 49 + 26 < 2 <2 <4 <2 <3 <2 <3 <14 <1 <1 <20 <5 MW-4 MW-5 04/25/13 < 22 < 21 < 2 <2 <6 <2 <4 <3 <5 <10 <2 <2 <20 <7 MW-5 09/08/13 < 20 < 17 < 2 <2 <5 <2 <4 <2 <4 <13 <2 <2 <21 <6 MW-6 04/30/13 < 14 < 28 < 1 <1 <3 <1 <3 <1 <3 <14 <1 <1 <19 <6 MW-6 09/21/13 < 21 < 18 <2 <2 <5 <2 <4 <2 <4 <10 <2 <2 <18 <5 11 < 1 <1 <3 <1 <3 <1 <3 <12 <1 <1 <17 <6 MW-7 05/02/13 < 14 <

< 28 < 1 <1 <3 <1 <2 <1 <2 <9 <1 <1 <15 <4

,p MW-9 05/02/13 < 12 01 <1 <3 <1 <3 <14 <1 <1 <18 <6 MW-BW-201S 05/01113 < 15 < 12 1 <1 <3

< 1 <1 <3 <1 <2 <1 <2 <15 <1 <1 <18 <5 MW-BW-202S 05/01/13 < 15 < 11 MW-BW-203S 05/01/13 < 14 < 29 < I <1 <3 <1 <3 <1 <3 <13 <1 <1 <18 <6

<2 <4 <2 <3 <2 <3 <14 <1 <2 <20 <6 MW-BW-2071 04/30/13 < 19 40 + 23 < 2

<1 <3 <1 <2 <1 <2 <10 <1 <1 <15 <4 OWM31P 05/03/13 < 12 < 10 < 1 53 < 6 <6 <8 <5 <10 <6 <9 <8 <5 <6 <23 <5 P-2D 06/12/13 < 43 <

<4 <10 <4 <8 <4 <8 <15 <4 <4 <32 <10 P-2D 12/19/13 < 41 < 77 < 4

<2 <6 <2 <5 <3 <4 <11 <2 <2 <21 <7 VB-2-6D 04/20/13 < 23 < 21 < 2

TABLE B-I.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, BRAIDWOOD STATION, 2013 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 2013

TABLE B-11.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA, AND GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA COLLECTION H-3 SR-89 SR-90 GR-A (DIS) GR-A (SUS) GR-B (DIS) GR-B (SUS)

SITE DATE U

DITCH (DS-2) 03/20/13 < 162 DITCH (DS-2) 04/20/13 < 171 < 0.6 < 0.4 1.8 +/- 0.8 < 1.5 DITCH (DS-2) 09/28/13 < 193 DITCH (DS-2) 10/06/13 Original 452 +/- 146 DITCH (DS-2) 10/06/13 Recount 615 +/- 153 DITCH (DS-2) 10/06/13 Reanalys 'is 501 +/- 137 EXELON POND 05102113 < 183 < 0.6 < 0.4 1.5 +/- 0.9 < 1.7 SG-BW-105 03/18/13 < 168 SG-BW-105 04/20/13 < 173 1.2 +/- 0.8 < 0.4 8.2 +/- 1.3 < 1.5 SG-BW-106 03120/13 < 169 SG-BW-106 04/20/13 < 170 < 1.0 < 0.4 9.2 +/- 1.4 < 1.5 SG-BW-105 04/16/13 < 181 SG-BW-105 07/15/13 < 191 SG-BW-105 10/22/13 < 176 SW-101 03/20/13 231 +/- 124 SW-101 04/20/13 < 165 < 1.2 < 0.7 4.1 +/- 1.1 < 1.7 SW-102 03/20/13 < 185 SW-102 04/20/13 < 172 < 1.2

0.7 4.7 +/- 1.2 < 1.7 SW-102 09/28/13 Original 341 +/- 140 SW-102 09128/13 Recount 310 +/- 126 SW-103 03/20/13

193 SW-1 03 04/20/13 < 167 < 1.7 < 0.7 4.5 +/- 1.2 < 1.7 SW-104 03/20/13 196 +/- 108 SW-104 04/20/13 < 170 < 1.1 < 0.4 4.3 +/- 1.2 < 1.5 B-10

TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 DATE DITCH (DS-2) 04/20/13 < 22 <19 <2 <2 <5 <2 <4 <2 <4 <11 2 2 < 20 <7 EXELON POND 05/02/13 < 17 <45 < 2 <2 <4 <2 <3 <2 <3 <13

18 <6 SG-BW-105 04/20/13 < 12 <10 <1 <1 <3 <1 <2 <1 <2 <7 1 1 *12 <4 SG-BW-106 04/20/13 < 17 <14 <2 <2 <4 <2 <3 <2 <3 <9

17 <5 2 2 SW-lOl 04/20/13 < 18 <15 <2 <2 <4 <2 <4 <2 <4 <9 2 2

17 <5 SW-102 04/20/13 < 22 <44 < 2 <2 <6 <2 <4 <2 <4

12 2 2

20 <7 SW-103 04/20/13 < 19 55 +/- 31 < 2 <2 <5 <2 <4 <2 <4

10 22 22

18 <6 SW-104 04/20/13 < 17 45 +/- 23 < 2 <2 <4 <1 <3 <2 <3

10 *17 <5

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