Text

Annual Radiological Environmental Operating Report
	ML061430373
Person / Time
Site:	Byron
Issue date:	04/30/2006
From:	; Exelon Nuclear, Teledyne Brown Engineering Environmental Services
To:	; Office of Nuclear Reactor Regulation
References
	1.10.0101, BYRON 2006-0053, FOIA/PA-2010-0209
	Download: ML061430373 (218)
	v • d • e

Docket No: 50-454 50-455 BYRON NUCLEAR GENERATING STATION UNITS I and 2 Annual Radiological Environmental Operating Report 1 January Through 31 December 2005 Prepared By Teledyne Brown Engineering Environmental Services I I x te Cn SM Nuclear Byron Nuclear Generating Station Byron, IL 61010 April 2006!18 I oF..1.

2 of 218 Table Of Contents I. Summary and Conclusions

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I II. Introduction

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3 A. Objectives of the REMP ...................................................

3 B. Implementation of the Objectives

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3 III. Program Description

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3 A. Sample Collection

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3 B. Sample Analysis ..................................................

6 C. Data Interpretation

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6 D. Program Exceptions

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8 E. Program Changes ..................................................

10 IV. Results and Discussion

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10 A. Aquatic Environment

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

10 2. Ground Water ..................................................

11 3. Fish ...................................................

11 4. Sediment ..................................................

11 B. Atmospheric Environment

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.12 1. Airborne ..................................................

12 a. Air Particulates

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12 b. Airborne Iodine..............................................................................

13 2. Terrestrial

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13 a. Milk ..................................................

13 b. Vegetation

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13 C. Ambient Gamma Radiation

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.14 D. Land Use Survey.................................................................................................

14 E. Summary of Results -Inter-laboratory Comparison Program ............................

15 3 of 218 Appendices Appendix A Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Summary for Byron Nuclear Generating Station, 2005 Appendix B Location Designation, Distance & Direction, and Sample Collection

&Analytical Methods Iables Table B-1: Table B-2: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Byron Nuclear Generating Station, 2005 Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical Methods, Byron Nuclear Generating Station, 2005 Eigures Figure B-1: Figure B-2: Figure B-3: Figure B4: Appendix C Inner and Outer Ring TLD Locations of the Byron Nuclear Generating Station, 2005 Onsite Air Sampling Locations of the Byron Nuclear Generating Station, 2005 Offsite Air Sampling Locations of the Byron Nuclear Generating Station, 2005 Ingestion and Waterborne Exposure Pathway Sampling Locations of the Byron Nuclear Generating Station, 2005 Data Tables and Figures -Primary Laboratory Tables Table C-1.1 Concentrations of Gross Beta in Surface Water Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Table C-1.2 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.ii 4 of 218 Table C-1.3 Table C-11.1 Table C-11.2 Table C-111.1 Table C-IV.1 Table C-V.1 Table C-V.2 Table C-V.3 Table C-VI.1 Table C-VII.1 Table C-VII.2 Table C-VIII.1 Table C-IX.1 Table C-IX.2 Table C-IX.3 Table C-X.1 Figures Figure C-1 Figure C-2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Tritium in Ground Water Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Gamma Emitters in Ground Water Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3 pCi/cu meter) in Air Particulate Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Concentrations of Gamma Emitters in Vegetation Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Quarterly TLD Results for Byron Nuclear Generating Station, 2005.Mean Quarterly TLD Results for the Inner Ring, Outer Ring, Other and Control Locations for Byron Nuclear Generating Station, 2005.Summary of the Ambient Dosimetry Program for Byron Nuclear Generating Station, 2005.Summary of Collection Dates for Samples Collected in the Vicinity of Byron Nuclear Generating Station, 2005.Surface Water -Gross Beta -Stations BY-12 and BY-29 (C) Collected in the Vicinity of BNGS, 2000 -2005.Surface Water -Tritium -Stations BY-1 2 and BY-29 (C) Collected in the Vicinity of BNGS, 2000 -2005.iii 5 of 218 Figure C-3 Figure C-4 Figure C-5 Figure C-6 Figure C-7 Figure C-8 Figure C-9 Appendix D TableD Table D-1 Table D-2 Table D-3 Table D-5 Table D-5 Appendix E Appendix F Ground Water -Tritium -Stations By-14-1 and BY-18 Collected in the Vicinity of BNGS, 2000 -2005.Ground Water -Tritium -Station BY-32 Collected in the Vicinity of BNGS, 2000 -2005.Air Particulate

-Gross Beta -Stations BY-08 (Cc) and BY-21 Collected in the Vicinity of BNGS, 2000 -2005.Air Particulate

-Gross Beta -Stations BY-22 and BY-23 Collected in the Vicinity of BNGS, 2000 -2005.Air Particulate

-Gross Beta -Station BY-24 Collected in the Vicinity of BNGS, 2000 -2005.Air Particulate

-Gross Beta -Station BY-01 and BY-04 Collected in the Vicinity of BNGS, 2000 -2005.Air Particulate

-Gross Beta -Station BY-06 Collected in the Vicinity of BNGS, 2000 -2005.Inter-Laboratory Comparison Program Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2005 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2005 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)Teledyne Brown Engineering, 2005 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2005 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)Environmental, Inc., 2005 Effluent Report Meteorological Data iv 6 of 218 I. Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for the Byron Nuclear Generating Station (BNGS) by Exelon covers the period 1 January 2005 through 31 December 2005. During that time period, 1,136 analyses were performed on 1,012 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of BNGS had no adverse radiological impact on the environment.

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

Ground water samples were analyzed for concentrations of gross beta and gamma emitting nuclides.

No fission or activation products were detected.

Gross beta and tritium activities detected were consistent with those detected in previous years.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. 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 activity.Cow milk samples were analyzed for concentrations of 1-131 and gamma emitting nuclides.

All 1-131 results were below the minimum detectable activity.No fission or activation products were found.Food Product samples were analyzed for concentrations of gamma emitting nuclides.

No fission or activation products were detected.Environmental gamma radiation measurements were performed quarterly using thermoluminescent dosimeters.

Levels detected were consistent with those observed in previous years.7 of 218 Intentionally left blank 2 8 of 218 II. Introduction Byron Station, a two-unit PWR station, is located about two miles east of the Rock River and approximately three miles of Byron in Ogle County, Illinois.

The reactors are designed to have capacities of 1280 and 1254 MW gross, respectively.

Unit One loaded fuel in November 1984 and went on line February 2, 1985. Unit Two went on line January 9, 1987. 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), Global Dosimetry, and Environmental Inc. (Midwest Labs) on samples collected during the period 1 January 2005 through 31 December 2005.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 BNGS REMP were collected for Exelon Nuclear by Environmental Inc. (Midwest Labs). This section describes the general-3 -9 of 218 collection methods used by Environmental Inc. to obtain environmental samples for the BNGS REMP in 2005. Sample locations and descriptions can be found in Tables B-1 and Figures B-1 through B-4, Appendix B.Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, well water, fish, and sediment.Two gallon water samples were collected monthly from two surface water locations (BY-12 and BY-29 [Control location])

and three well water locations (BY-14-1, BY-18 and BY-32). All samples were collected in new unused plastic bottles, which were rinsed with source water prior to collection.

Fish samples comprising the flesh of smallmouth bass, channel catfish, and freshwater drum were collected semiannually at two locations, BY-29 (control) and BY-31. Sediment samples composed of recently deposited substrate were collected at two locations semiannually, BY-12 and BY-34.Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulate, airborne iodine, and milk. Airborne iodine and particulate samples were collected and analyzed weekly at eight locations (BY-01, BY-04, BY-06, BY-08, BY-21, BY-22, BY-23, and BY-24). The control location was BY-08. 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 filters were replaced weekly and sent to the laboratory for analysis.

The air iodine samples were replaced biweekly through 09/20/2005, then weekly on 09/27/2005 and sent to the lab for analysis.Milk samples were collected biweekly at three locations (BY-20-1, BY-26-1 and BY-30) from May through October, and monthly from November through April. The control location was BY-26-1. 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 (BY-Control, BY-Quad 1, BY-Quad 2, BY-Quad 3, and BY-Quad 4).Various types of samples were collected and placed in new unused plastic bags, and sent to the laboratory for analysis.-4-10 of 218 Ambient Gamma Radiation Direct radiation measurements were made using CaF 2 thermoluminescent dosimeters (TLD). Each location consisted of 2 TLD sets. The TLD locations were placed on and around the BNGS site as follows: An inner ing consisting of 16 locations (BY-101, BY-102, BY-103, BY-104, BY-105, BY-106, BY-107, BY-108, BY-109, BY-110, BY-1l1, BY-1 12, BY-1 13, BY-1 14, BY-1 15, and BY-1 16) near and within the site perimeter representing fence post doses (i.e., at locations where the doses will be potentially greater than maximum annual off-site doses)from BNGS release.An ouer ring consisting of 16 locations (BY-201, BY-202, BY-203, BY-204, BY-205, BY-206, BY-207, BY-208, BY-209, BY-210, BY-21 1, BY-212, BY-213, BY-214, BY-215 and BY-216) extending to approximately 5 miles from the site designed to measure possible exposures to close-in population.

An nlbew set consisting of seven locations (BY-01, BY-04, BY-06, BY-21, BY-22, BY-23 and BY-24).The balance of one location (BY-08) representing the control area.The specific TLD locations were determined by the following criteria: 1. The presence of relatively dense population;

2. Site meteorological data taking into account distance and elevation for each of the sixteen-22 1/2 degree sectors around the site, where estimated annual dose from BNGS, if any, would be most significant;

3. On hills free from local obstructions and within sight of the vents (where practical);

4. And near the closest dwelling to the vents in the prevailing downwind direction.

Two TLDs -each comprised of two CaF 2 thermoluminescent phosphors enclosed in plastic -were placed at each location in a PVC conduit located at a minimum of five feet above ground level. The TLDs were exchanged quarterly and sent to Global Dosimetry for analysis.-5-11 of 218 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 BNGS REMP in 2005. 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 surface water and air particulates.

2. Concentrations of gamma emitters in ground and surface water, air particulates, milk, fish, sediment and vegetation.

3. Concentrations of tritium in ground and surface water.4. Concentrations of 1-131 in air and milk.5. Ambient gamma radiation levels at various site environs.C. Data Interpretation The radiological and direct radiation data collected prior to Byron Nuclear Generating Station becoming operational were used as a baseline with which these operational data were compared.

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

In addition, data were 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 BNGS detection capabilities for environmental sample analysis.The minimum detectable concentration (MDC) is defined above-6 -12 of 218 with the exception that the measurement is an after the fact estimate of the presence of activity.2. Net Activity Calculation and Reporting of Results Net activity for a sample was calculated by subtracting background activity from the sample activity.

Since the REMP measures extremely small changes in radioactivity in the environment, background variations may result in sample activity being lower than the background activity effecting 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 ground water eleven nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Zr-95, Nb-95, Cs-1 34, Cs-1 37, Ba-140, and La-1 40 were reported.For surface water twelve nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Zr-95, Nb-95,1-131, Cs-134, Cs-137, Ba-140, and La-140 were reported.For fish nine nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb/Zr-95, Cs-134, Cs-137 and Ba/La-140 were reported.For sediment nine nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-95, Nb/Zr-95, Cs-134, Cs-137 and Ba/La-140 were reported.For air particulate nine, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb/Zr-95, Cs-134, Cs-137 and Ba/La-140 were reported.For milk ten nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb/Zr-95, Cs-1 34, Cs-I 37, Ba-140 and La-140 were reported.For vegetation ten nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb/Zr-95,1-131, Cs-134, Cs-137 and Ba/La-140 were reported.Means and standard deviations of the results were calculated.

The standard deviations represent the variability of measured results for different samples rather than single analysis uncertainty. 13 of 218 D. Program Exceptions For 2005 the BNGS REMP had a sample recovery rate in excess of 99%.Sample anomalies and missed samples are listed in the tables below: Table D-1 LISTING OF SAMPLE ANOMALIES Sample Location Collection Reason Type Code A/l A BY-24 A/l A/I A/l BY-06 BY-24 BY-01 BY-08, 21, 22 23,24 BY-01 BY-01 BY-23 Date 02/01/05 02/08/05 02/15/05 02/15/05 06/14/05 08/02/05 08/09/05 10/11/05 Timer meter not working; collector placed new timer; 167.7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months used for calculations.

Zero reading due to timer malfunction; collector replaced timer; location not analyzed.Timer meter not working; collector placed new timer; 166.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months used for calculation.

Low vacuum of 5 CFH due to pump malfunction; collector replaced pump; location not analyzed.Station requested collector place air iodine cartridges weekly for first three weeks in June.Usual frequency is biweekly.Pump found not running; wires appeared burned, insulation melted. Collector replaced pump. Runtime = 112.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for week.Low reading of 160.1 hours1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months due to pump replacement.

No apparent reason for low reading of 125.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months .A/l A A/l-8 -14 of 218 Table D-2 LISTING OF MISSFD SAMPI FS Sample Location Collection Reason Tvpe SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW Code Date BY-12 01/04/05 No sample; frozen water BY-29 01/04/05 No sample; water frozen BY-29 01/10/05 No sample; water frozen BY-12 01/18/05 No sample; water frozen BY-29 01/18/05 No sample; water frozen BY-12 01/25/05 No sample; water frozen BY-29 01/25/05 No sample; water frozen BY-29 02/01/05 No sample; water frozen BY-29 02/08/05 No sample; water frozen BY-12 12/06/05 No sample; water frozen BY-29 12/06/05 No sample; water frozen BY-12 12/13/05 No sample; water frozen BY-29 12/13/05 No sample; water frozen BY-12 12/20/05 No sample; water frozen BY-29 12/20/05 No sample; water frozen BY-12 12/27/05 No sample; water frozen BY-29 12/27/05 No sample; water frozen Each program exception was reviewed to understand the causes of the program exception.

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

Occasional equipment breakdowns and power outages were unavoidable.

The overall sample recovery rate indicates that the appropriate procedures and equipment are in place to assure reliable program implementation. 15 of 218 E. Program Changes Beginning the third quarter 2005, Teledyne Brown Engineering Environmental Services became the primary laboratory and Environmental Inc. (Midwest Labs) became the QC laboratory.

Due to the change, the data tables and summary table presented in this report will appear different from previously submitted reports. This year, only the detected and non-detected results will be presented in the data tables. As a result of this change, the first half of the year data tables will display LLD (Lower Limit of Detection) values for non-detected nuclides and the second half of the year data tables will display MDC (Minimum Detectable Concentration) values for non-detected nuclides.

The summary table will include a longer list of gamma nuclides.

The data points for non-detects in the figures will consist of LLD values for the first half of the year and MDC values for the second half of the year.On September 27, 2005, Byron Nuclear Generating Station changed from biweekly to weekly air iodine sampling and analysis.IV. Results and Discussion A. Aquatic Environment

1. Surface Water Samples were taken weekly and composited monthly at two locations (BY-12 and BY-29). Of these locations only BY-12 located downstream, could be affected by Byron Nuclear Generating Station's effluent releases.

The following analyses were performed.

Gross RBta Samples from both locations were analyzed for concentrations of gross beta (Table C-1.1, Appendix C). The values ranged from<4.0 to 6.8 pCi/I. Concentrations detected were consistent with those detected in previous years (Figure C-1, Appendix C).Tritium Quarterly composites of weekly collections were analyzed for tritium activity (Table C-1.2, Appendix C). The values ranged from<149 to 3014 pCi/l. Concentrations detected were consistent with-10-16 of 218 those detected in previous years (Figure C-2, Appendix C).Gamma Spectrometry Samples from both locations were analyzed for gamma emitting nuclides (Table C-1.3, Appendix C). No nuclides were detected, and all required LLDs were met.2. Ground Water Quarterly grab samples were collected at three locations (BY-14-1, BY-18 and BY-32). These locations could be affected by Byron Nuclear Generating Station's effluent releases.

The following analyses were performed:

Tritium Quarterly grab samples from the locations were analyzed for tritium activity (Table C-11.1, Appendix C). No nuclides were detected, and all required LLDs were met (Figures C-3 and C-4, Appendix C).Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-11.2 Appendix C). No nuclides were detected, and all required LLDs were met.3. Fish Fish samples comprised of smallmouth bass, channel catfish and freshwater drum were collected at two locations (BY-29 and BY-31)semiannually.

Location BY-31 could be affected by Byron Nuclear Generating Station's effluent releases.

The following analysis was performed:

Gamma Spectrometry The edible portion of fish samples from both locations was analyzed for gamma emitting nuclides (Table C-111.1, Appendix C).No nuclides were detected, and all required LLDs were met.4. Sediment Aquatic sediment samples were collected at two locations (BY-12 and BY-34) semiannually.

Both locations, located downstream,-11 -17 of 218 could be affected by Byron Nuclear Generating Station's effluent releases.

The following analysis was performed:

Gamma Spectrometry Sediment samples from both locations were analyzed for gamma emitting nuclides (Table C-IV.1, Appendix C). No nuclides were detected, and all required LLDs were met.B. Atmospheric Environment 1 .Airborne a. Air Particulates Continuous air particulate samples were collected from eight locations on a weekly basis. The eight locations were separated into three groups: Nearsite samplers (BY-21, BY-22, BY-23 and BY-24), Far Field samplers within 4 km of the site (BY-01, BY-04, and BY-06) and the Control sampler between 10 and 30 km from the site (BY-08). For the first half of 2005, far field samples were analyzed when the respective near field sample results were inconsistent with previous measurements and radioactivity was confirmed as having its origin in airborne effluents from the station, or at the discretion of the Chemistry Manager. The following analyses were performed:

Gross Reta Weekly samples were analyzed for concentrations of beta emitters (Table C-V.1 and C-V.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 BNGS. The results from the Near-Site locations (Group I)ranged from 6 to 52 E-3 pCi/M 3 with a mean of 23 E-3 pCi/r 3.The results from the Far-Site locations (Group II)ranged from 6 to 57 E-3 pCi/i 3 with a mean of 23 E-3 pCi/M 3.The results from the Control location (Group l1l)ranged from 8 to 50 E-3 pCi/M 3 with a mean of 23 E-3 pCi/m 3.Comparison of the 2005 air particulate data with previous years data indicate no effects from the operation of BNGS. In addition a comparison of the weekly mean values-12-18 of 218 for 2005 indicate no notable differences among the three groups (Figures C-5 through C-9, Appendix C).Gamma Spentrometry Weekly samples were composited quarterly and analyzed for gamma emitting nuclides (Table C-V.3, Appendix C). No nuclides were detected, and all required LLDs were met.b. Airborne Iodine Continuous air samples were collected from eight locations (BY-01, BY-04, BY-06, BY-08, BY-21, BY-22, BY-23, and BY-24) and analyzed weekly for 1-131 (Table C-VI.1, Appendix C). No 1-131 was detected and the required LLD was met.2. Terrestrial

a. Milk Samples were collected from three locations (BY-20-1, 26-1 and BY-30) biweekly May through October and monthly November through April. The following analyses were performed:

Indine-131 Milk samples from all locations were analyzed for concentrations of 1-131 (Table C-VIl.1, Appendix C). No nuclides were detected, and all required LLDs were met.Gamma Spectrometrw Each milk sample was analyzed for concentrations of gamma emitting nuclides (Table C-VII.2, Appendix C). No nuclides were detected, and all required LLDs were met.b. Vegetation Vegetation samples were collected at five locations (BY-Control, BY-Quad 1, BY-Quad 2, BY-Quad 3 and BY-Quad 4) when available.

Four locations (BY-Quad 1, BY-Quad 2, BY-Quad 3 and BY-Quad 4) could be affected by Byron-13-19 of 218 Nuclear Generating Station's effluent releases.

The following analysis was performed:

Gamma Speotrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-VIII.1, Appendix C). No nuclides were detected, and all required LLDs were met.C. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Panasonic 814 (CaF 2) thermoluminescent dosimeters.

Forty TLD locations were established around the site. Results of TLD measurements are listed in Tables C-IX.1 to C-IX.3, Appendix C.All TLD measurements were below 30 mR/standard month, with a range of 15 to 29 mR/standard month. A comparison of the Inner Ring, Outer Ring, Other and Control Location data indicate that the ambient gamma radiation levels were comparable among the groups.D. Land Use Survey A Land Use Survey conducted during August 2005 around the Byron Nuclear Generating Station (BNGS) was performed by Environmental Inc.(Midwest Labs) for Exelon Nuclear to comply with the Byron Nuclear Generating 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 ft 2 in each of the sixteen 22 A degree sectors around the site. There were no changes required to the BNGS REMP, as a result of this survey. The results of this survey are summarized below.-14-20 of 218 Distance in Miles from the BNGS Containment Building Sector Residence Livestock Milk Farm Miles Miles Miles A N 2.4 5.0 12.0 B NNE 0.9 1.5 -C NE 1.1 1.9 -DENE 1.3 6.5 -E E 1.3 1.3 -FESE 1.5 1.5 -G SE 0.8 5.5 5.1 HSSE 0.6 3.2 -JS 0.5 0.6 K SSW 0.6 2.2 L SW 0.8 2.0 M WSW 1.7 1.7 -N W 1.8 2.5 4.5 P WNW 0.8 3.5 -Q NW 1.3 3.8 RNNW 1.0 1.4 E. 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.-15 -21 of 218

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 primary laboratory, 18 out of 19 analytes met the specified acceptance criteria.

Four samples did not meet the specified acceptance criteria for the following reasons: 1. Teledyne Brown Engineering's Analytics' September 2005 air particulate Fe-59 ratio of 1.35 exceeded the upper control limit of 1.30 due to a new technician not counting the air particulate in a petri dish.For the secondary laboratory, 19 out of 23 analytes met the specified acceptance criteria.

Four samples did not meet the specified acceptance criteria for the following reasons: 1. Environmental Inc.'s ERA's November 2005 water Gross Alpha result of 41.1 pCi/L exceeded the upper control limit of 33.4 pCi/L.This was due to using an Am-241 efficiency instead of a Th-232 efficiency when counting the sample. Using the correct efficiency gave a result of 27.0 pCi/L, which fell within the control limits.2. Environmental Inc.'s ERA's November 2005 water Ra-228 result of 5.5 pCi/L exceeded the upper control limit of 5.0 pCi/L due to presence of radium daughters.

Delay in counting 100 minutes gave a result of 4.01 pci/L, which fell within the control limits.3. Environmental Inc.'s MAPEP's January 2005 air particulate Sr-90 result of 2.2 Bq/kg exceeded the upper control limit of 1.76 Bq/kg.Reanalysis result was 1.56 Bq/kg, which fell within the control limits.4. Environmental Inc.'s MAPEP's July 2005 soil Am-241 result of 48.4 exceeded the lower control limit of 56.77 Bq/kg due to incorrect sample weight being used in the calculation.

When recalculated 22 of 218 with the correct sample weight, the result was 97.0 Bq/kg, which fell within the control limits.The Inter-Laboratory Comparison Program provides evidence of 'in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.-17-23 of 218 Intentionally left blank 24 of 218 APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

25 of 218 26 of 218 TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 1ST QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

GR-B 5 4 5.6 (1/3)5.9 (2/2)(4.9/6.8)5.9 (2/2)(4.9/6.8)BY-29 CONTROL BYRON -UPSTREAM 3.0 MILES SSW OF SITE 0 H-3 2 200 3014 (1/1)15 <LLD<LLD 3014 (1/1)BY-12 INDICATOR 0 OREGON POOL OF ROCK RIVER -DOWNSTREAM

4.5 MILES

SSW OF SITE GAMMA MN-54 5<LLD 0 CO-58 FE-59 CO-60 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD<LLD<LLD 0<LLD 0 0 ZN-65<LLD 0 NB-95'LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 1ST QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

ZR-95 30 <LLD<LLD 0 1-131 15 <LLD 15 <LLD<LLD 0 CS-134<LLD 0 CS-137 18<LLD<LLD 0 BA-140 60 <LLD 15 <LLD<LLD 0 LA-140<LLD 0 GROUND WATER (PCI/LITER)

H-3 3 200 <LLD N/A 0 GAMMA MN-54 5 15 <LLD N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).. _ .W._. ...

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 1ST QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 IT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS GROUND WATER (PCI/LITER)

CO-S8 15 <LLD N/A 0 FE-59 CO-60 ZN-65 NB-95 30 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD 18 <LLD N/A 0 N/A N/A 0 0 N/A 0 ZR-95 N/A 0 CS-134 N/A 0 CS-137 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 1ST QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/LITER)

BA-140 60 <LLD N/A 0 LA-140 15 <LLD N/A 0 AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 65 10 25 (52/52)(12/42)28 (13/13)(15/45)28 (13/13)(15/45)BY-08 CONTROL LEAF RIVER 6.8 MILES WNW OF SITE 0 GAMMA MN-54 CO-58 5 N/A <LLD N/A <LLD N/A <LLD<LLD 0<LLD 0 FE-59<LLD 0 CO-60 N/A<LLD<LLD 0 ZN-65 N/A <LLD<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 1ST QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCIICU.METER)

ZRNB-95 N/A <LLD<LLD 0 CS-134 50 <LLD<LLD 0 CS-137 60 <LLD<LLD 0 BALA140 N/A <LLD<LLD 0 AIR IODINE (E-3 PCI/CU.METER)

MILK (PCI/LITER) 1-131 35 70 <LLD 1 <LLD<LLD 0 1-131 (LOW LVL)GAMMA MN-54 CO-58 9<LLD 0 9 NIA N/A<LLD<LLD<LLD 0<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 1ST QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

FE-59 N/A <LLD<LLD 0 CO-60 N/A<LLD<LLD 0 ZN-65 N/A <LLD<LLD 0 ZRNB-95 CS-134 CS-137 N/A <LLD 15 <LLD 18 <LLD 60 <LLD 15 <LLD<LLD<LLD 0<LLD 0 0 BA-140<LLD 0 LA-140<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 1ST QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 80 N/A 22.5 (78ns)(17/27)19.5 (2/2)(19/20)27.0 (1/1)BY-107-1*

INDICATOR 0 1.4 MILES SE OF SITE-4)

Locations BY-107-2 and BY-213-4 had Identical results of 27 mR. Only BY-1 07-1 Is detailed in this summary.MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)0 FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

GR-B 6 4 <LLD 4.3 (1/3)4.3 (1/3)BY-29 CONTROL BYRON -UPSTREAM 3.0 MILES SSW OF SITE 0 H-3 2 200 <LLD<LLD 0 GAMMA MN-54 6 CO-58 FE-59 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD<LLD<LLD<LLD<LLD<LLD<LLD 0 0 0 CO-60 0 ZN-65 0 NB-95 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

ZR-95 30 <LLD<LLD 0 1-131 15 <LLD 15 <LLD<LLD 0 CS-134<LLD 0 CS-137 18<LLD<LLD 0 BA-140 60 <LLD 15 <LLD<LLD 0 LA-140<LLD 0 GROUND WATER (PCI/LITER)

H-3 3 200 <LLD N/A 0 GAMMA MN-54 5 15 <LLD N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facflity:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/LITER)

CO-58 15 <LLD N/A 0 FE-59 CO-60 ZN-65 NB-95 30 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD 18 <LLD N/A 0 N/A N/A 0 N/A 0 0 ZR-95 N/A 0 CS-134 N/A 0 CS-137 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCILITER)

BA-140 60 <LLD N/A 0 LA-140 15 <LLD N/A 0 FISH (PCI/KG WET)GAMMA MN-54 4 130 <LLD<LLD 0 CO-58 FE-59 CO-60 130 <LLD 260 <LLD 130 <LLD 260 <LLD N/A <LLD<LLD<LLD<LLD<LLD<LLD 0 0 0 ZN-65 0 ZRNB-95 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 MEASUREMENI) (LLD) MEASUREMENTS FISH (PCI/KG WET)CS-134 130 <LLD<LLD 0 CS-137 150 <LLD<LLD 0 BALA140 N/A <LLD<LLD 0 SEDIMENT (PCI/KG DRY)GAMMA MN-54 2 N/A<LLD N/A 0 tJ'CO-58 N/A <LLD FE-59 N/A <LLD N/A N/A N/A N/A 0 0 CO-60 N/A <LLD 0 ZN-65 N/A <LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SEDIMENT (PCI/KG DRY)ZRNB-95 N/A <LLD N/A 0 CS-134 CS-137 150 <LLD 180 <LLD N/A <LLD N/A 0 N/A 0 BALA140 N/A 0 AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 65 10 20 (51/52)(10/42)20 (13/13)(11/36)21 (13/13)(12/37)BY-22 INDICATOR BYRON NEARSITE EAST-SOUTHEAST

0.4 MILES

ESE OF SITE 0 GAMMA MN-54 5 CO-58 N/A <LLD N/A <LLD N/A <LLD<LLD 0<LLD 0 FE-59<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 AIR PARTICULATE (E-3 PCI/CU.METER)

CO-60 N/A <LLD<LLD 0 ZN-65 ZRNB-95 CS-134 N/A <LLD N/A <LLD 50 <LLD 60 <LLD N/A <LLD<LLD<LLD 0 0<LLD 0-I CS-137<LLD 0 BALA140<LLD 0 AIR IODINE (E-3 PCIICU.METER) 1-131 35 70 <LLD<LLD 0 MILK (PCILITER) 1-131 (LOW LVL)18 I <LLD<LLD 0 0 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

GAMMA MN-54 18 N/A <LLD N/A <LLD<LLD 0 CO-58<LLD 0 FE-59 N/A<LLD<LLD 0 CO-60 N/A <LLD<LLD 0 00 ZN-65 ZRNB-95 N/A <LLD N/A <LLD 15 <LLD 18 <LLD<LLD<LLD<LLD<LLD 0 0 CS-134 CS-137 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 2ND QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

BA-140 60 <LLD 15 <LLD<LLD 0 LA-140<LLD 0 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 80 N/A 19.8 (78/78)(15/24)16.5 (2/2)(16/17)24.0 (1/1)BY-102-2 INDICATOR 1.0 MILES NNE OF SITE 0'.0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

GR-B 6 4 5.1 (3/3)(4.8/5.5)5.2 (3/3)(5.0/5.6)5.2 (3/3)(5.0/5.6)BY-29 CONTROL BYRON -UPSTREAM 3.0 MILES SSW OF SITE 0 H-3 GAMMA MN-54 2 6 CO-58 200 <LLD 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD<LLD<LLD 0<LLD 0 0 FE-59<LLD 0 CO-60<LLD 0 ZN-65<LLD 0 NB-95<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)A_

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

ZR-95 30 <LLD<LLD 0 1-131 CS-134 CS-137 15 <LLD 15 <LLD 18 <LLD 60 <LLD 15 <LLD<LLD<LLD 0 0<LLD 0 BA-140<LLD 0 LA-140<LLD 0 GROUND WATER (PCI/LITER)

H-3 3 200 <LLD<LLD 0 GAMMA MN-54 3 15 <LLD N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/LITER)

CO-58 15 <LLD N/A 0 FE-59 CO-60 ZN-65 NB-95 30 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD 18 <LLD N/A 0 N/A N/A 0 0 N/A 0 ZR-95 N/A 0 CS-134 N/A 0 CS-137 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/LITER)

BA-140 60 <LLD N/A 0 LA-140 15 <LLD N/A 0 AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 104 10 21 (91/91)(9/49)22 (13/13)(12/50)22 (13/13)(12/50)BY-08 CONTROL LEAF RIVER 6.8 MILES WNW OF SITE 0 GAMMA MN-54 8 N/A <LLD N/A <LLD<LLD 0 CO-58<LLD 0 FE-59 N/A<LLD<LLD 0 CO-60 N/A <LLD<LLD 0 ZN-65 N/A<LLD<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION# NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCI/CU.METER)

ZRNB-95 N/A <LLD<LLD 0 CS-134 50 <LLD<LLD 0 CS-137 60 <LLD<LLD 0 BALA140 N/A<LLD<LLD 0 AIR IODINE (E-3 PCI/CU.METER) 1-131 56 70 <LLD<LLD 0 MILK (PCI/LITER) 1.131 (LOW LVL)18 I <LLD<LLD 0 GAMMA MN-54 18 N/A <LLD N/A <LLD<LLD 0 CO-58<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

FE-59 N/A<LLD<LLD 0 CO-60 N/A <LLD<LLD 0 ZN-65 ZRNB-95 CS-134 N/A <LLD N/A <LLD 15 <LLD 18 <LLD 60 <LLD 15 <LLD<LLD<LLD<LLD<LLD<LLD<LLD 0 0 0 CS-137 0 BA-140 0 LA-140 0 0C 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/KG WET)GAMMA MN-54 10 N/A <LLD<LLD 0 CO-58 N/A <LLD<LLD 0 FE-59 CO-60 N/A N/A N/A<LLD<LLD<LLD<LLD 0<LLD 0 ZN-65<LLD 0 ZRNB-95 1-13 1 N/A <LLD 60 <LLD 60 <LLD<LLD 0<LLD 0 CS-134<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 3RD QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/KG WET)CS-137 80 <LLD N/A <LLD<LLD 0 BALA140<LLD 0 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 80 N/A 20.4 (78/78)(15/26)19.0 (2/2)(18/20)26.0 (1/1)BY-105-2 INDICATOR 1.3 MILES E OF SITE 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED -ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

GR-B 4 4 5.9 (2/2)(5/6.7)5.5 (2/2)(5.515.5)5.9 (2/2)(5/6.7)BY-12 INDICATOR 0 OREGON POOL OF ROCK RIVER -DOWNSTREAM

4.5 MILES

SSW OF SITE H-3 2 GAMMA MN-54 CO-58 FE-59 CO-60 4 200 <LLD 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD<LLD 0<LLD 0<LLD 0<LLD 0<LLD 0 ZN-65<LLD 0 NB-95<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

ZR-95 30 <LLD<LLD 0 1-131 CS-134 15 <LLD 15 <LLD 18 <LLD<LLD 0<LLD 0 CS-137<LLD 0 BA-140 60 <LLD<LLD 0 LA-140 15 <LLD<LLD 0 GROUND WATER (PCI/LITER)

H-3 3 200 <LLD N/A 0 GAMMA MN-54 3 15 <LLD N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Faculty: BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/LITER)

CO-5S 15 <LLD N/A 0 FE-59 CO-60 ZN-65 NB-95 30 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD IS <LLD N/A N/A N/A N/A N/A N/A N/A 0 0 0 0 ZR-95 0 CS-134 0 CS-137 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/LITER)

BA-140 60 <LLD N/A 0 LA-140 15 <LLD N/A 0 FISH (PCI/KG WET)GAMMA MN-54 4 130 <LLD<LLD 0 CO-58 FE-59 CO-60 130 <LLD 260 <LLD 130 <LLD 260 <LLD N/A <LLD<LLD<LLD 0<LLD 0 0 ZN-65<LLD 0 ZRNB-95<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 FISH (PCI/KG WET)CS-134 130 <LLD<LLD 0 CS-137 150 <LLD<LLD 0 BALA140 N/A <LLD<LLD 0 SEDIMENT (PCI/KG DRY)GAMMA MN-54 2 N/A <LLD<LLD 0 CO-58 N/A<LLD<LLD 0 FE-59 N/A <LLD<LLD 0 CO-60 N/A N/A<LLD<LLD<LLD 0 ZN-65<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)...

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SEDIMENT (PCI/KG DRY)ZRNB-95 CS-134 N/A <LLD 150 <LLD 180 <LLD N/A <LLD<LLD 0<LLD 0 CS-137 N/A 0 BALA140<LLD 0 AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 104 10 24 (91/91)(6/57)23 (13/13)(8/41)<LLD 25 (13/13)(10/52)BY-23 INDICATOR BYRON NEARSITE SOUTH 0.6 MILES S OF SITE 0 GAMMA MN-54 8 N/A<LLD 0 CO-58 N/A <LLD N/A <LLD<LLD 0 FE-59<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WiTH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCI/CU.METER)

CO-60 N/A <LLD<LLD 0 ZN-65 N/A <LLD<LLD 0 ZRNB-95 N/A <LLD<LLD 0 CS-134 50 <LLD<LLD 0 CS-137 60 <LLD<LLD 0 BALA140 N/A<LLD<LLD 0 AIR IODINE (E-3 PCI/CU.METER) 1-131 104 70 <LLD<LLD 0 MILK (PCI/LITER) 1-131 (LOW LVL)12 I <LLD<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)-----...h... ....--..-.._ __ _ .. .._

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

GAMMA MN-54 12 N/A <LLD<LLD 0 CO-58 N/A<LLD<LLD 0 FE-59 N/A <LLD<LLD 0 CO-60 x0 ZN-65 ZRNB-95 N/A <LLD N/A <LLD N/A <LLD 15 <LLD 18 <LLD<LLD<LLD 0 0<LLD 0 CS-134<LLD 0 CS-137<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: 4TH QUARTER, 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

BA-140 60 <LLD 15 <LLD<LLD 0 LA-140<LLD 0 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 80 N/A 24.4 (78/78)(18/29)20.5 (2/2)(20/21)29.0 (1/1)BY-107-1 INDICATOR 1.4 MILES SE OF SITE 0'.0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWERLIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

GR-B 21 4 5.4 (6/11)(4.8/6.7)200 3014 (1/4)5.3 (8/10)(4.3/6.8)<LLD 5.4 (6/11)(4.8/6.7)3014 (1/4)BY-12 INDICATOR 0 OREGON POOL OF ROCK RIVER -DOWNSTREAM

4.5 MILES

SSW OF SITE BY-12 INDICATOR 0 OREGON POOL OF ROCK RIVER -DOWNSTREAM

4.5 MILES

SSW OF SITE H-3 8 GAMMA MN-54 21 CO-58 FE-59 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD<LLD<LLD<LLD<LLD<LLD<LLD 0 0 0 CO-60 0 ZN-65 0 NB-95 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)I.- --------- --

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER (PCI/LITER)

ZR-95 30 <LLD<LLD 0 1-131 CS-134 CS-137 15 <LLD 15 <LLD 18 <LLD 60 <LLD 15 <LLD<LLD<LLD 0 0<LLD 0 BA-140<LLD 0 LA-140<LLD 0 GROUND WATER (PCI/LITER)

H-3 12 200 <LLD<LLD 0 GAMMA MN-54 12 15 <LLD N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)I be -----a_---. 1-_--. ___ ___ -.-- -- ---- -------_ ._ ------_

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEANM) 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 (PCI/LITER)

CO-58 15 <LLD N/A 0 FE-59 CO-60 ZN-65 NB-95 30 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 15 <LLD 18 <LLD N/A 0 N/A N/A 0 0 N/A 0 ZR-95 N/A 0 CS-134 N/A 0 CS-137 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/LITER)

BA-140 60 <LLD N/A 0 LA-140 15 <LLD N/A 0 FISH (PCI/KG WET)GAMMA MN-54 8 130 <LLD<LLD 0 CO-5S FE-59 130 <LLD 260 <LLD 130 <LLD 260 <LLD<LLD 0<LLD 0 CO-60<LLD 0 ZN-65<LLD 0 ZRNB-95 N/A<LLD<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FISH (PCI/KG WET)CS-134 130 <LLD<LLD 0 CS-137 150 <LLD<LLD 0 BALA140 N/A <LLD<LLD 0 SEDIMENT (PCI/KG DRY)GAMMA MN-54 4 N/A <LLD<LLD 0 CO-58 FE-59 N/A <LLD N/A <LLD N/A <LLD N/A <LLD<LLD<LLD<LLD<LLD 0 0 CO-60 0 ZN-65 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SEDIMENT (PCI/KG DRY)ZRNB-95 N/A<LLD<LLD 0 CS-134 150 <LLD<LLD 0 CS-137 BALA140 180 139 (1/2)N/A <LLD N/A 139 (1/2)BD-10 INDICATOR KANKAKEE RIVER DOWNSTREAM 0 5.4 MILES NE<LLD 0 AIR PARTICULATE (E-3 PCICU.METER)

GR-B 338 10 22 (285/286)(6/57)23 (52/52)(8/50)23 (52/52)(8/50)BY-08 CONTROL LEAF RIVER 6.8 MILES WNW OF SITE 0 GAMMA MN-54 26 N/A <LLD<LLD 0 CO-58 N/A N/A<LLD<LLD<LLD 0 FE-59<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCI/CU.METER)

CO-60 N/A <LLD<LLD 0 ZN-65 N/A <LLD<LLD 0 ZRNB-95 N/A <LLD<LLD 0 CS-134 50 <LLD<LLD 0 CS-137 60 <LLD<LLD 0 BALA140 AIR IODINE (E-3 PCI/CU.METER) 1-131 230 N/A <LLD 70 <LLD I <LLD<LLD 0<LLD 0 MILK (PCI/LITER) 1-131 (LOW LVL)57<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

GAMMA MN-54 57 N/A<LLD<LLD 0 CO-58 N/A <LLD<LLD 0 FE-59 CO-60 60 ZN-65 N/A <LLD N/A <LLD N/A <LLD N/A <LLD 15 <LLD 18 <LLD<LLD 0<LLD 0<LLD 0 ZRNB-95<LLD 0 CS-134<LLD 0 CS-137<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50454 & 50455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK (PCI/LITER)

BA-140 60 <LLD 15 <LLD<LLD 0 LA-140<LLD 0 VEGETATION (PCI/KG WET)GAMMA MN-54 10 N/A<LLD<LLD 0 CO-58 N/A <LLD<LLD 0 FE-59 CO-60 N/A <LLD N/A <LLD N/A <LLD<LLD 0<LLD 0 ZN-65<LLD 0 ZRNB-95 N/A<LLD<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)... ~n,. .,.R .. ,.,. .I._ .... -. =1 ----" --" -_ .. _ .... ._.

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR BYRON NUCLEAR GENERATING STATION, 2005 Name of Facility:

BYRON DOCKET NUMBER: 50-454 & 50-455 Location of Facility:

BYRON, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN 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 (PCI/KG WET)1-131 60 <LLD<LLD 0 CS-134 CS-137 60 <LLD 80 <LLD N/A <LLD<LLD 0<LLD 0 BALA140<LLD 0 I DIRECT RADIATION (MILLI-ROENTGEN/QUART ER)TLD-QUARTERLY 320 N/A 21.8 (312/312)(15/29)18.9 (8/8)(16/21)25.3 (4/4)(23/27)BY-107-2 INDICATOR 1.4 MILES SE OF SITE 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F).. 1 ... 1- I -..... -.. _ ._S. _I. ... ..

Intentionally left blank 70 of 218 APPENDIX B LOCATION DESIGNATION, SAMPLE COLLECTION DISTANCE & DIRECTION, AND& ANALYTICAL METHODS B-1 71 of 218 72 of 218 TABLE B-1: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Byron Nuclear Generating Station, 2005 Location Location Description Distance & Direction From Site A S,,^rfA WRftr BY-12 BY-29 Oregon Pool of Rock River, Downstream (indicator)

Byron, Upstream (control)4.5 miles SSW 3.0 miles N M£ Grouna/wVell Water BY-14-1 BY-18 BY-32 3200 North German Church Road (indicator)

McCoy Farmstead (indicator)

Ron Wolford Well (indicator)

1.0 miles

SSE 0.7 miles SW 1.8 miles W I -- --.1.C; Mlth -m-wePKly I monnniy BY-20-1 Ron Snodgrass Farm (indicator)

BY-26-1 Dennis Herbert (control)BY-30 Don Roos Dairy (indicator)

D- Air Partirssi tgn / Air Indinp 4.5 miles W 12.0 miles N 5.3 miles SE BY-01 BY-04 BY-06 BY-08 BY-21 BY-22 BY-23 BY-24 Byron (indicator)

Paynes Point (indicator)

Oregon (indicator)

Leaf River (control)Byron Nearsite North (indicator)

Byron Nearsite East-Southeast (indicator)

Byron Nearsite North (indicator)

Byron Nearsite Southwest (indicator)

3.0 miles

N 5.0 miles SE 4.7 miles SSW 6.8 miles WNW 0.3 miles N 0.4 miles ESE 0.6 miles S 0.6 miles SW E Fsh BY-29 BY-31 Byron, Upstream (control)Byron, Discharge (indicator)

3.0 miles

SSW 2.2 miles WNW F. Sediment BY-12 BY-34 Oregon Pool of Rock River, Downstream (indicator)

Rock River, Downstream (indicator)

4.5 miles

SSW 0.6 miles W G. Vgettinn Quadrant I Quadrant 2 Quadrant 3 Quadrant 4 Control North Cox Road Umerick Road E. Spring Creek Road Equestrian Pointe Gensler Gardens 4.9 miles ENE 3.0 miles SE 2.0 miles WSW 2.0 miles WNW 13.0 miles ENE 14 FnvimnmPntal Dnqimetry

-Tl BY-101-1 and -2 BY-102-1 BY-1 02-2 BY-103-1 and -2 BY-104-1 and -2 BY-105-1 and -2 BY-106-1 and -2 0.3 miles N 0.9 miles NNE 1.0 miles NNE 1.7 miles NE 1.5 miles ENE 1.3 miles E 1.4 miles ESE B-2 73 of 218 TABLE B-1: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Byron Nuclear Generating Station, 2005 Location Location Description Distance & Direction From Site BY-107-1 and-2 BY-108-1 BY-108-2 BY-109-1 and-2 BY-110-1 and -2 BY-111-3 BY-111-4 BY-112-3 and -4 BY-113-1 and-2 BY-114-1 and-2 BY- 15-1 and-2 BY-116-1 and-2 1.4 miles SE 0.7 miles SSE 0.6 miles SSE 0.6 miles S 0.6 miles SSW 0.7 miles SW 0.8 miles SW 0.8 miles WSW 0.7 miles W 0.8 miles WNW 1.0 miles NW 1.4 miles NNW uitpr Ring BY-201-3 BY-201-4 BY-202-1 BY-202-2 BY-203-1 BY-203-2 BY-204-1 BY-204-2 BY-205-1 and -2 BY-206-1 BY-206-2 BY-207-1 BY-207-2 BY-208-1 BY-208-2 BY-209-1 and -4 BY-210-3 and -4 BY-211-1 and-4 BY-212-1 and -4 BY-213-1 BY-213-4 BY-214-1 BY-214-4 BY-215-1 BY-215-4 BY-216-1 BY-216-2 4.5 miles N 4.4 miles N 4.3 miles NNE 4.8 miles NNE 4.8 miles NE 4.7 miles NE 4.2 miles ENE 4.1 miles ENE 3.8 miles E 4.1 miles ESE 4.4 miles ESE 4.2 miles SE 3.6 miles SE 4.0 miles SSE 3.7 miles SSE 3.7 miles S 3.9 miles SSW 4.9 miles SW 4.7 miles WSW 4.7 miles W 4.6 miles W 4.6 miles WNW 4.9 miles WNW 5.3 miles NW 5.2 miles NW 4.6 miles NNW 4.8 miles NNW BY-01-1 and -2 BY-04-1 and -2 BY-06-1 and -2 BY-21-1 and -2 BY-22-1 and -2 BY-23-1 and -2 BY-24-1 and -2 3.0 miles N 5.0 miles SE 4.7 miles SSW 0.3 miles N 0.4 miles ESE 0.6 miles S 0.6 miles SW Cnntml And Sfprmninl Interest BY-08-1 and -2 6.8 miles WNW B-3 74 of 218 TABLE B-2: Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical Methods, Byron Nuclear Generating Station, 2005 Sample Analysis Sampling Method Analytical Procedure Number Medium Surface Water Gamma Spectroscopy Monthly composite from TBE, TBE-2007 Gamma emitting radioisotope analysis weekly grab samples.Env. Inc., GS-01 Determination of gamma emitters by_)amma soectroscoov Surface Water Gross Beta Monthly composite from TBE, TBE-2008 Gross Alpha and/or gross beta activity in weekly grab samples. various matrices Env. Inc., W(DS)-01 Determination of gross alpha and/or cross beta In water (dissolved solids or total residue)Surface Water Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquid from weekly grab scintillation samples.Env. Inc., T-02 Determination of tritium in water (direct method)Ground Water Gamma Spectroscopy Quarterly grab samples. TBE, TBE-2007 Gamma emitting radioisotope analysis Env. Inc., GS-01 Determination of gamma emitters by aamma soectroscoov Ground Water Tritium Quarterly grab samples. TBE, TBE-2011 Tritium analysis in drinking water by liquid scintillation Env. Inc., T-02 Determination of tritium in water (direct method)Fish Gamma Spectroscopy Semi-annual samples TBE-2007 Gamma emitting radioisotope analysis collected via electroshocking or other Env. Inc., GS-01 Determination of gamma emitters by technloues camma spectroscopv Sediment Gamma Spectroscopy Semi-annual grab TBE, TBE-2007 Gamma emitting radioisotope analysis samples Env. Inc., GS-01 Determination of gamma emitters by gamma soectroscoov Air Particulates Gross Beta One-week composite of TBE, TBE-2008 Gross Alpha and/or gross beta activity in continuous air sampling various matrices through glass fiber filter paper Env. Inc., AP-02 Determination of gross alpha and/or gross beta in air Darticulate filters Air Particulates Gamma Spectroscopy Quarterly composite of TBE, TBE-2007 Gamma emitting radioisotope analysis each station Env. Inc.. GS-01 Determination of gamma emitters by gamma soectroscoDv Air Iodine Gamma Spectroscopy One-week composite of TBE, TBE-2007 Gamma emitting radioisotope analysis continuous air sampling through charcoal filter Env. Inc., 1-131-02 Determination of 1-131 In charcoal canisters by gamma soectroscopv (batch method)Milk 1-131 Bi-weekly grab sample TBE, TBE-2012 Radiolodine In various matrices when cows are on pasture. Monthly all Env. Inc., 1-131-01 Determination of 1-131 in milk by anion other times exchanae Milk Gamma Spectroscopy Bi-weekly grab sample TBE, TBE-2007 Gamma emitting radioisotope analysis when cows are on pasture. Monthly all Env. Inc., GS-01 Determination of gamma emitters by other times pamma soectroscoov Vegetation Gamma Spectroscopy Annual grab samples. TBE, TBE-2007 Gamma emitting radioisotope analysis Env. Inc., GS-01 Determination of gamma emitters by aamma soectroscoov TLD Thermoluminescence Quarterly TLDs Global Dosimetry Dosimetry comprised of two Global Dosimetry CaF2 elements.B-4 75 of 218

v even, s~Figure B-1 Inner and Outer Ring TLD Locations of the Byron Nuclear Generating Station, 2005 B-5 76 of 218 K J H.r I I:.F I -- ..I .... .. I .11/4 mi.t 1 MILE Figure B-2 Onsite Air Sampling Locations of the Byron Nuclear Generating Station, 2005 B-6 77 of 218 a I a 1 4 & At"=I 9 X I 3 9* Air Sampft Lomfim R BD1m Sgo IyOI Bym Uran4 Paynftpw Bra OI~gm bY4* ouiywr Figure B-3 Offsite Air Sampling Locations of the Byron Nuclear Generating Station, 2005 B-7 78 of 218 a II M 1 2 1 4 IL0 I SYW I=d# Fih Y~s jbN eeelt o Syron Steen Y-12 Oet o toi i m4-t 320 X mw 8C~hu Road VY-2 K. Iw1 Dugu Fwm BY-20-I Rw=SxtPmF=

BY-26-1 Danig Ioben BY-29 SY mmUr 11Y.30 VPMRAmuDW BY-31 RMeW@V0f BY-24 .deRa.Do(nwinm Figure B-4 Ingestion and Waterbome Exposure Pathway Sampling Locations of the Byron Nuclear Generating Station, 2005 B-8 79 of 218 Intentionally left blank 80 of 218 APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY 81 of 218 82 of 218 TABLE C-1.1 CONCENTRATIONS OF GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION PERIOD BY-12 BY-29 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC< 4.0 5.6 +/- 1.4< 4.0< 4.0< 4.0< 4.0 4.8 +/- 2.1 5.0 +/- 2.1 5.5 +/- 2.1 5.0 +/- 2.0 6.7 +/- 2.1 (1)(1)6.8

1.8 4.9 +/- 1.3< 4.0 4.3 +/- 1.1< 4.0 5.1 +/- 2.2 5.6

2.2 5.0 +/- 2.0 5.5 i 2.0 5.5 +/- 2.0 (1)TABLE C-1.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION PERIOD JAN-MAR APR-JUN JUL-SEP OCT-DEC BY-12 3014 +/- 163< 200< 174< 152 BY-29< 200< 200< 165< 149 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER (1) SEE PROGRAM EXCEPTIONS FOR EXPLANATION C-1 83 of 218 TABLE C4.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

2 SIGMA STC COLLECTION MN-54 PERIOD BY-12 JAN < 15 FEB < 15 MAR < 15 APR < 15 MAY < 15 JUN < 15 JUL < 1 AUG < 1 SEP < 1 OCT < 1 NOV < 1 DEC (1)CO-58 FE-59 CO.60 ZN-65 NB-95 ZR-95 1-131 CS-134 CS-137 BA-140 LA-140< 15< 15< 15< 15< 15< 15<2< I<1<1<1< 15< 15< 15< 15< 15<2<1<2<1<2< 30< 30< 30< 30< 30< 30<5<2<3<3<3< 30< 30< 30< 30<30<4< 3<4<3<5<15<15< 15< 15< 15<15<1<1<1<1<1<15' 15<15< 15<15<1<1<1<1<2< 30< 30< 30< 30< 30< 30<3<2<2<2<3< 30< 30< 30< 30< 30<3<2<3<2<4< 15< 15< 15<15< 15< 15<2<1<1<1<2< 15< 15< 15< 15< 15<2<1<2<1<3< 30<30< 30< 30< 30< 30<3<1I<2<2<3< 30< 30< 30< 30< 30<3<2<3<2<4< 15< 15< 15< 15< 15< 15< 10<6<9< 15<8< 15< 15< 15< 15< 15< 10< 11< 11< 15< 12< 15< 15< 15< 15< 15< 15<1<1<1<1<1< 15< 15< 15< 15< 15<1<1<1<1<2< 18< 18< 18< 18< 18< 18< 1<1<1<1<1< 18< 18< 18< 18< 18<1<1<1<1< 2< 60< 60< 60< 60< 60< 60< 36< 9< 13< 20< 13< 60< 60< 60< 60< 60< 34< 15< 16< 18< 22<15<15<15< 15< 15<15< 12<3<5<7<4<15< 15< 15< 15< 15<12<5<6<6<7 BY-29 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC (1)< 15< 15< 15< 15< 15<1<1<1<1< 2 (1)DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION TABLE C-11.1 CONCENTRATIONS OF TRITIUM IN GROUND WATER SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION PERIOD BY-14-1 BY-18 BY-32 JAN-MAR APR-JUN JUL-SEP OCT-DEC< 200< 200< 164< 169< 200< 200< 162< 169< 200< 200< 159< 169 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER C-3 85 of 218 TABLE C-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUND WATER SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA STC COLLECTION PERIOD BY-14-1 JAN APR JUL OCT BY-18 JAN APR JUL OCT MN-54 Co-58 FE-59 CO-60 ZN-65 NB-95 ZR-95 1131 CS-134 CS-137 BA-140 LA-140< 15<15<5< 5< 15< 15<8<4<15< 15< 5<4-cIs< 15< 9<4< 30< 30< 11<11< 30< 30< 17< 10< 15<15<5<6< 30< 30< 11< 13< 15< 15<6<7< 15< 15<8<5< 30< 30< 6< 10< 30< 30< 14< 7< 15< 15< 6< 10< 15< 15< 14< 7< 15< 15<5<5< 15< 15<7<5' 18< 18<5<6< 18< 18< 10< 5< 61< 60< 21< 33< 60< 60< 40< 26< 15< 15< 9< 12< 15< 15< 11< 7<15 <30<15 <30< 6 <21<5 <10 BY-32 JAN APR JUL OCT< 15< 15<4<2< 15< 15<4<2< 30< 30<7<4<15 <30<15 <30<4 <6<4 <5< 15< 15<4<2< 30< 30<7<4< 15< 15<7<4< 15< 15<4<2< 18< 18<4<2< 60< 60< 20< 14< 15< 15< 3< 5 DUE TO VENDOR CHANGE. < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-111.1 CONCENTRATIONS OF GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA COLLECTION PERIOD MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BALA-140 STC BY-29 Channel Catfish Freshwater Drum Channel Catfish Freshwater Drum 05/18/05 05/18/05 10/11/05 10/11/05< 130< 130< 27< 73< 130< 130< 33< 94< 260< 260< 65< 142< 130< 130< 36< 50< 260< 260< 78< 165< 200< 200< 32< 99< 100< 100< 30< 71< 100< 100< 38< 81< 300< 300< 44< 240 BY-31 Channel Catfish Freshwater Drum Smallmouth Bass Channel Catfish 05118/05 05/18/05 10/11/05 10/11/05< 130< 130< 37< 53< 130< 130<45< 58< 260< 260< 79< 135< 130< 130< 35< 51< 260< 260< 93< 78< 200< 200< 30< 69< 100< 100< 32< 54< 100< 100< 38< 59< 300< 300< 83< 137 0 (3 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/KG DRY + 2 SIGMA STC COLLECTION PERIOD BY-12 05/24/05 10/25/05 MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BALA-140<130<53'130<68<130<42< 260<146< 260<86<130<58'130< 44<260'122<260< 90<200<61<200<46<100<57'100<41 c100<82'100< 56<300<72<300<71 BY-34 05/24/05 < 130 10/25/05 <43 DUE TO VENDOR CHANGE, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER +/- SIGMA GROUP I l GROUP II l GROUP III WEEK BY-21 BY-22 BY-23 BY-24 BY-01 BY-04 BY-06 BY-08 1 34+/-4 42+/-4 35+/-4 34+/-4 (1) (1) (1) 44+/-4 2 36 +/-5 35+/-5 24+/-4 28+/-5 27+/-5 3 24 +/-3 33 +/-3 41 +/-4 38 +/-4 45 +/-4 4 30 +/-4 25 +/-4 32 +/-4 28 +/-4 29 +/-4 5 29 +/- 4 32 +/- 4 23 +/- 3 25 +/- 3 25 +/- 3 6 23 +/- 3 27 +/- 3 26 3 28 +/- 3 32 +/- 4 7 20+/-4 13+/-3 20+/-4 20+/-4 21 +/-4 8 22 +/-4 25 +/-4 28 4 27 +/-4 26 +/-4 9 25 +/- 4 25 +/- 4 25 4 28 +/- 4 34 +/- 4 10 21 +/- 4 22 +/- 4 23 4 20 +/- 4 25 +/- 4 11 16 +/- 4 16 +/- 4 16 4 16 +/-4 18 +/-4 12 12 +/- 3 15 +/-3 12 3 12 +/-3 15 +/-3 13 19 +/-3 23 +/-3 22 3 26 +/-3 26 +/-3 14 17 +/-4 22 +/-4 19 4 19 +/-4 19 +/-4 15 20 +/- 4 19 +/-4 20 4 22 +/-4 21 +/-4 16 25+/-3 30+/-3 23+/-3 24+/-3 27+/-3 17 16 +/-3 19+/-3 19+/-3 19+/-3 17+/-3 18 1 1+/- 3 12 +/- 3 13 +/- 3 14 +/- 3 11 3 19 29 +/- 4 33 +/- 4 27 +/- 4 28 +/- 4 26 3 20 11 +/- 3 14 +/- 3 13 +/- 3 13 +/- 3 13 3 21 17 +/-4 20 +/-4 20 +/-4 21 +/-4 19 3 22 12 +/- 3 15 +/-3 17 +/-3 14 +/-3 19 +/-4 23 20 +/- 4 22 +/- 4 21 +/- 4 19 +/- 4 20 +/- 4 24 20+/-3 20+/-3 22+/-3 19+/-3 19+/-3 25 9+/- 3 12 +/- 3 12 +/-3 10+/-3 14 +/-3 26 39 +/-4 37 +/-4 38 +/-4 42 +/-4 36 +/-4 27 10 +/- 4 11 +/- 4 12 +/- 5 12 +/- 5 10 +/- 4 12 +/- 5 9+/- 4 12 +/- 4 28 18 +/-5 16 +/-5 17 +/-5 13 +/-5 17 +/-5 20 +/-6 14 +/-5 25 +/-5 29 27 +/-6 22 6 23 +/-6 24 +/-6 24 +/-5 23 +/-5 20 +/-5 22 6 30 16 +/- 5 16 +/- 5 18 +/- 5 19 +/- 5 16 +/- 5 14 +/- 5 18 +/- 5 12 +/- 5 31 15 +/- 4 1 1+/- 4 16 +/- 4 14 +/- 4 22 5 17 +/- 5 19 +/- 5 19 +/- 5 32 25+/-5 22 +/-5 24+/-5 21 +/-5 24+/-6 25+/-5 20+/-5 22+/-5 33 16 +/- 6 17 +/- 6 12 +/- 5 17 +/- 6 21 +/- 6 17 +/- 6 17 +/- 6 21 +/- 6 34 12 +/- 4 14 +/- 4 16 +/- 4 15 +/- 4 16 +/- 4 12 +/- 4 17 +/- 4 14 +/- 4 35 14 +/-5 15 +/-5 15 +/- 5 15 +/-5 18 +/-5 15 +/-5 16 +/-5 16 +/-5 36 17 +/- 4 24 +/- 5 23 +/- 5 21 +/- 4 25 +/- 5 23 +/- 5 24 +/- 5 23 +/- 5 37 49 +/- 6 49*+/-6 49+/-6 41+/-6 46+/-6 49+/-6 43+/-6 50+/-6 38 23+/-5 26+/-5 24+/-5 25+/-5 22+/-5 22+/-5 24+/-5 24+/-5 39 25+/-5 21+/-5 23+/-5 20+/-5 21+/-5 23+/-5 22+/-5 23+/-5 40 23+/-5 20+/-4 24+/-5 20+/-4 21+/-4 20+/-4 18+/-4 20+/-5 41 13+/-4 10+/-4 16+/-5 14+/-4 14+/-4 10+/-4 13+/-4 13+/-4 42 21+/-4 21+/-5 21+/-5 23+/-5 22+/-5 17+/-4 21+/-5 25+/-5 43 9+/-4 9+/-4 10+/-4 6+/-4 10+/-4 9+/-4 6+/-4 8+/-4 44 21+/-5 22+/-5 24+/-5 23+/-5 24+/-5 19+/-4 22+/-5 25+/-5 45 24+/-5 26+/-5 30+/-5 30 5 26+/-5 25+/-5 26+/-5 28+/-5 46 27+/-4 28+/-5 20+/-4 29+/-5 26+/-4 25+/-4 25+/-4 25+/-4 47 20+/-5 22+/-5 22+/-5 18+/-5 19+/-5 20+/-5 19+/-5 17+/-5 48 13+/-3 16+/-4 19+/-4 14+/-3 18+/-4 14+/-3 16+/-4 15+/-4 49 22+/-4 20+/-4 23+/-4 23+/-4 24+/-4 20+/-4 19+/-4 19+/-4 50 36+/-5 36+/-5 38+/-5 39+/-5 35+/-5 32i5 31+/-5 41+/-5 51 30+/-5 32+/-5 31+/-5 34+/-5 23+/-4 34+/-5 29+/-5 30+/-5 52 49+/-6 46+/-6 52+/-6 43+/-6 50+/-6 46+/-6 57+/-6 37+/-5 MEAN 22+/-18 23+/-18 23+/-18 22+/-17 23+/-18 22+/-20 22+/-20 23+/-18 (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-7 89 of 218 TABLE C-V.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS (E-3 PCI/CU METER) IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 GROUP I -NEARSITE LOCATIONS GROUP II -FAR FIELD LOCATIONS COLLECTION PERIOD MIN. MAX MEAN +/-2SD GROUP III -CONTROL LOCATIONS COLLECTION MIN. MAX. MEAN +/-PERIOD 2 SD COLLECTION PERIOD MIN. MAX. MEAN +/-2SD 12/28/U4 02/01/05 03/01/05 03/29105 05/03/05 05/31/05 06/28/05 08102/05 08/30/05 09/27/05 11/01/05 11129/05-0/UI/0U-03/01/05-03129105-05/03/05-05/31/05-08/28/05-08/02/05-08/30/05-09/27/05-11/01/05-11129/05-12/27/05 23 42 31 t 11 13 28 24 +/- 8 12 26 18 +/- 9 11 30 19+/-9 11 33 19 +/- 14 9 42 23 +/- 21 10 27 16

9 12 25 17 +/- 8 17 49 29 +/- 22 6 24 17 +/- 12 13 30 22 +/- 11 20 52 35 +/- 20 1 Z//U4 -0U2U1/Ub 02101105 -03/01/05 03/01/05 -03/29/05 03/29/05 -05/03/05 05/03/05 -05/31/05 05131/05 -06/28/05 06/28/05 -08/02/05 08/02105 -08/30/05 08/30/05 -09/27/05 09/27/05 -11/01105 11/01/05 -11/29/05 11/29/05 -12/27/05 (1) (1)(1) 12/28$/04 02/01/05 03/01/05 03/29/05 05/03/05 05/31/05+/- 9 06/28/05+/- 8 08/02/05+/- 21 08/30/05+/- 11 09/27/05+/- 9 11/01/05+/- 24 11/29/05-U2iU1U/b-03/01/05-03/29/05-05/03/05-05/31/05-06/28/05-08/02105-08/30/05-09/27/05-11/01/05-11/29/05-12127/05 25 45 34 4 19 21 34 28 +/- 12 15 26 21 +/- 11 11 27 19

12 13 26 19 +/- 11 14 36 22 +/- 19 12 25 18 +/- 12 14 22 18+/-7 23 50 30 +/- 27 8 25 18 +/- 15 15 28 21 +/- 12 19 41 32 +/- 19 9 24 17 12 25 18 21 49 29 6 24 16 14 26 22 19 57 33 12/28/04 -12/27/05 6 52 23 +/- 12 12/28/04 -12/27/05 6 57 23 +/- 14 12/28/04 -12/27/05 8 50 23 +/- 12 (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION TABLE C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA STC COLLECTION PERIOD BY-01 12/28/04 -03/29 03/29/05 -06/2E 06/28/05 -09/27 09/27/05 -12127 MN-54 CO-58 FE-59 C0-60 ZN-65 ZRNB-95 CS-134 CS-137 BALA140 1/05 8/05 F/05 (1)(1)<5< 3< 10< 5.1 BY-04 12/28/04 -03/29/05 -06/28/05 -09/27/05 -BY-06 12/28/04 -03/29/05 -06/28/05 -09/27/05 -BY-08 12/28/04 -03/29/05 -06/28/05 -09/27/05 -03/29/05 (1)06/28/05 (1)09/27/05 < 3.0 12/27/05 < 3.4 c 5.2< 4.6< 40< 13< 19< 15< 25< 14< 15< 15< 11< 13< 2.9< 2.7< 2.4< 3.2< 3.2< 2.9< 10< 10< 4.7< 2.7< 8.8< 9.1< 4.5< 10< 6.5< 5.0<40< 40< 4.6< 8.9< 9.1< 5.0< 6.2< 6.3< 10< 4.5< 10< 10< 2.5< 5.1< 3.9< 3.7< 2.6< 4.5< 3.3< 2.5< 50< 50< 2.3< 2.8< 4.2< 2.7< 2.3< 3.2< 3.5< 1.7< 60< 60< 0.8< 2.3< 903< 152< 587< 147< 970< 122< 25< 25< 677< 75 03/29/05 06/28/05 09/27/05 12/27/05 03/29/05 06/28/05 09/27/05 12/27/05 (1)(1)<4.0< 1.9< 5.6< 3.0< 10< 10< 3.5< 2.6< 10< 10< 5.3< 4.5 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION TABLE C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA STC COLLECTION PERIOD MN-54 CO-58 FE-59 CO-60 ZN-65 NB-95 CS-134 CS-137 BALA140., _ ., ~~~~~~~IAA_.XA

_..,,_..A__

BY-21 12/28/04 -03/29105 03/29/05 -06/28/05 06/28/05 -09/27/05 09/27/05 -12/27/05 BY-22 12/28/04 -03/29/05 03/29/05 -06/28/05 06/28/05 -09/27/05 09/27/05 -12/27/05 BY-23 12/28/04 -03/29/05 03/29/05 -06/28/05 06/28/05 -09/27/05 09/27/05 -12/27/05 BY-24 12/28/04 -03/29/05 03/29/05 -06/28/05 06/28/05 -09/27/05 09/27/05 -12/27/05< 10< 10< 3.5< 2.7< 10< 10< 7.3< 3.8< 10< 10< 3.8< 2.9< 10< 10< 3.0< 3.5< 10< 10< 10< 4.0< 10< 10< 4.6< 5.4< 15< 15< 35< 15< 15< 15< 27< 9.9< 15< 15< 20< 13< 15< 15< 19< 15< 10< 10< 3.5< 3.5< 10< 10< 4.5< 3.0< 10< 10< 2.0< 1.5< 10< 10< 2.1< 3.0< 40< 40< 13< 7.1< 40< 40< 10< 5.9< 40< 40< 7.8< 8.5< 40< 40< 8.7< 9.9< 10< 10< 12< 5.1< 10< 10< 9.5< 5.0< 10< 10< 8.3< 6.5< 10< 10< 8.4< 5.5< 50< 50< 5.3< 3.1< 50< 50< 4.5< 3.9< 50< 50< 2.0< 3.6< 50< 50< 2.5< 3.5< 60< 60< 4.0< 2.6< 60< 60< 3.3< 2.9< 60< 60< 3.1< 3.0< 60< 60< 1.9< 3.2< 25< 25< 837< 135< 25< 25< 1190< 128< 25< 25< 1090< 187< 25< 25< 242< 155< 10< 10< 3.1< 3.7< 10< 10< 6.7< 5.8 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION

... ..

TABLE C-VI.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER + 2 SIGMA GROUP I I GROUP II I GROUP III WEEK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 BY-21< 70< 70< 70< 70< 70< 70< 70< 70<70< 70< 70< 70< 70< 70< 13< 32< 18< 29< 30<27<20< 37< 43< 35<41< 47< 56< 27< 64< 34< 13< 39 I I I BY-22 BY-23 BY-24<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70<70 <70 <70< 70 < 70 < 70<70 <70 <70< 13 < 13 < 13<32 <32 <32< 18 < 18 < 18< 29 < 29 < 29<30 <30 <30< 27 <27 < 27<29 <29 <30<57 <56 <56 c 43 < 57 < 43 c35 <35 <35<41 <27 <41<47 <47 <47<56 <56 <56<27 <27 < 15<63 <63 <63<34 <34 <34<24 <24 <24<38 <39 <25-BY-01 (1)< 14< 23< 22< 29< 19< 19<25< 42< 45< 26< 47< 36< 40<25< 47< 11< 21< 30< 63< 30 BY-04 (1)BY-06 BY-08 (1) < 70< 70< 70< 70< 70< 70< 70< 70< 70< 70< 70< 70< 70< 70 14 < 14 23 < 23 17 < 17 22 < 22 18 < 18 19 < 19 24 < 24 43 < 44 46 < 44 26 < 26 46 < 45 36 < 37 39 < 38 25 < 25 47 < 47 23 < 22 22 < 22 29 < 29-< 14< 23< 16< 22< 19< 19<25< 43<46<26<46< 36< 39< 25< 49< 22< 21< 29< 64< 30 51 <69 52 < 36<68 <68< 67< 36< 64< 30< 63< 30< 36< 36 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-1 I 93 of 218 TABLE C-VII.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+ 2 SIGMA COLLECTION PERIOD 01/04/05 02/01/05 03/01/05 04/05/05 05/03/05 05/17/05 05/31/05 06/14/05 06/28/05 07/12/05 07/25/05 08/09/05 08/23/05 09/06/05 09/20/05 10/04/05 10/18/05 11/01/05 12/06/05 CONTROL FARM BY-26-1 lI INDICATOR FARMS BY-20-1 BY-30< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 0.3<0.8< 0.4< 0.5< 0.7< 0.4< 0.6< 0.2< 0.5< 0.4< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 0.3< 0.5< 0.3< 0.4< 0.5< 0.6< 0.9< 0.4< 0.6< 0.4< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 1.0< 0.4< 0.4< 0.4< 0.5< 0.7< 0.4< 0.7< 0.4< 0.7< 0.4 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER C-12 94 of 218 TABLE C-V11.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+ 2 SIGMA STC COLLECTION PERIOD BY-20-1 01/04/05 02/D1/05 03/01/05 04/05/05 05/03/05 05/17/05 05/31/05 06/14/05 06/28/05 07/12/05 07/25/05 08/09/05 08/23/05 09/06/05 09/20/05 10/04/05 10/18/05 11/01/05 12/06/05 MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BA-140 LA-140.I< 10< 10< 10 C 10< 10< 10< 10< 10< 10< 5<7<8<5<5<5<4<5< 6< 7< 10< 10<10<10<10<10<10<10<10<5<6<7<5<5<7<4<5< 8< 5< 15< 15< 15< 15< 15< 15< 15< 15 c 15< 13< 16< 15< 14< 10< 12<9< 13< 19< 15<10<10<10<10<10<10<10<10<10<4<8<7<6<5<5< 4<6<9<7< 15< 15< 15< 15< 15< 15< 15< 15< 15< 15< 15< 13< 13< 10< 11< 9< 12< 17< 15<10<10<10<10<10<10< 10<10<10< 6< 7< 11<6<5<5<4< 5< 9< 7< 15< 15< 15< 15< 15< 15< 15< 15< 15< 5< 6< 7< 5< 4< 5< 3< 5< 7< 6< 18< 18< 18< 18< 18< 18< 18< 18< 18<5<8<9< 6< 5< 5< 4< 5<8<7< 60< 60< 60< 60< 60< 60< 60< 60< 60< 27< 34< 35< 24< 24< 25< 20< 21< 43< 34< 15< 15< 15< 15< 15< 15< 15< 15< 15<7<9< 11< 8<6<7< 7< 7< 8<8 9 DUE TO VENDOR CHANGE,< VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA STC COLLECTION PERIOD BY-26-1 01/04/05 02/01/05 03/01/05 04/05/05 05/03/05 05/17105 05/31/05 06/14/05 06/28/05 07/1V205 07/25/05 08/09/05 08/23/05 09/06/05 09/20/05 10/04/05 10W18/05 11/01/05 12/06/05 MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BA-140 LA-140< 10< 10< 10< 10< 10< 10< 10< 10< 10<6<6<6<6<3<6<8<4<5< 10< 10< 10< 10< 10< 10< 10< 10< 10<8<6<4<4<4<6<8<4<4<6< 15< 15< 15< 15< 15< 15< 15< 15< 15< 16< 16<12< 15<7< 17< 14< 11< 12< 13< 10< 10< 10< 10< 10< 10< 10< 10< 10<4<7<6<7< 4< 6<6<3<5<6< 15< 15< 15< 15< 15< 15< 15< 15< 15< 18< 17< 16< 13< 8< 16< 19<9< 14< 11< 10<10<10<10<10<10<10<10<10<7<7<6<6<4<7<6<4<6<5<15<15<15<15<15< 15<15<15<15<7<5<5<5<3<6<6<4<6<5<18<18< 18<18<18<18<18<18< 18<7<6<7<5<4<6<7<5<6<7< 60< 60< 60< 60< 60< 60< 60< 60< 60< 33< 31< 25<25< 17< 34< 46< 17< 34< 25<15< 15< 15<15<15< 15<15<15<15<9< 12<7<6< 5< 10< 13< 4<8<5 9 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+ 2 SIGMA STC COLLECTION PERIOD BY-30 01104/05 02/01(05 03/01/05 04/05105 05/03/05 05/17/05 05/31/05 06/14/05 06/28/05 07/12/05 07/25/05 08/09/05 08/23/05 09/06/05 09/20/05 10/04/05 10/18/05 11/01/05 12/06/05 MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BA-140 LA-140<10<10<10<10<10<10<10<10<10<5<6<9< 6<7<5<5<6<5<5< 10< 10< 10< 10< 10< 10< 10< 10< 10<6<5<8<4< 7< 6< 6< 5< 6< 4< 15<15<15<15< 15<15< 15<15<15<10<14< 18<11<15<12<14<12<12<10<10<10<10<10<10<10<10<10<10<4<6<9<7<6<7<5<5<6<6< 15< 15< 15< 15< 15< 15<15< 15< 15< 13<9< 20< 12< 16< 12< 12< 14< 13< 10<10<10<10<10<10<10<10<10<10<7<6<8<6<8<6<6<7<5<5<15<15<15<15<15<15<15<15< 15<6<4<8<5<6<5<4<5<5<4<18<18<18<18<18<18<18<18<18<6<5< 9<5<7<6<5<7< 5< 4<60<60<60<60<60<60<60<60<60<35<22<40<21<29<27<34<33<24<22<15<15<15<15<15< 15<15< 15< 15< 9<8<13< 10< 10<9<9<9<9<5 0 DUE TO VENDOR CHANGE, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-VI11.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF PCI/KG WET : 2 SIGMA STC COLLECTION MN-54 PERIOD CO-58 FE-59 Co-60 BY-QUAD 1 08/23/05 < 29 Beets 0 BY-QUAD 1 08/23/05 Cabbage MEAN BY-QUAD 2 08/23105 Cabbage BY-QUAD 2 08/23105 Onions MEAN BY-QUAD 3 08/23/05 Cabbage BY-QUAD 3 08/23/05 Onions MEAN BY-QUAD 4 08/23/05 Cabbage BY-QUAD 4 08/23/05 Potatoes MEAN BY-QUAD C 08/23/05 Cabbage BY-QUAD C 08/23/05 Kohirabi< 21 25 i 12< 17< 14 15 i 5< 24< 36 30

17< 16< 21 18 i 7< 20< 28< 23< 20 21

3< 18< 15 17

3< 26< 30 28 i 5< 18< 20 19

2<22< 18< 53< 43 48 i 15< 39< 34 37 i 7< 46< 53 49 i 9<40< 31 36 i 12<45< 55< 32< 21 27

15< 19< 13 16 i 8<23< 41 32 +/- 25< 21< 31 26 +/- 14< 25< 25 ZN-65<47< 41 44 i 8< 44< 37 41 +/- 10<61< 76 69 +/- 21< 36< 89 62 +/- 75< 41< 53 ZRNB-95< 28< 24 26 +/- 6< 21< 16 18 t 8<22< 29 26 +/- 10< 20<25 22 +/- 6< 22< 28 1-131< 48< 36 42 +/- 17<41< 29 35 +/- 17< 48< 46 47 +/- 4< 33< 46 40 +/- 18< 38< 44< 27< 19 23 i 11< 17< 14 15 i 4< 23< 30 27 +/- 10< 18< 32 25 +/- 20< 23< 19< 33< 18 26 +/- 21< 16< 17 17 +/- 2< 25< 37 31 +/- 18< 18< 27 23 +/- 13< 22< 22< 49< 37 43 +/- 17< 31< 20 26 +/- 15< 25< 52 38 +/- 37< 24< 26 25 +/- 2< 32< 31 CS-134 CS-137 BALA140 MEAN 24

10 20 t 5 50

15 25 +/- 1 47 +/- 17 25 +/- 9 41 +/- 8 21 +/- 5 22

1 31 +/- 2., _, .m s TABLE C-IX.1 QUARTERLY TLD RESULTS FOR BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER

+/- 2 STANDARD DEVIATIONS STATION CODE BY-01-1 BY-01-2 BY-04-1 BY-04-2 BY-06-1 BY-06-2 BY-08-1 BY-08-2 BY-21-1 BY-21-2 BY-22-1 BY-22-2 BY-23-1 BY-23-2 BY-24-1 BY-24-2 BY-101-1 BY-101-2 BY-102-1 BY-102-2 BY-103-1 BY-103-2 BY-104-1 BY-104-2 BY-105-1 BY-105-2 BY-106-1 BY-106-2 BY-107-1 BY-107-2 BY-108-1 BY-108-2 BY-109-1 BY-109-2 BY-I 0-1 BY-1 10-2 BY- 11-3 BY-Il 1-4 BY-1 12-3 BY- 12-4 BY-1 13-1 BY-1 13-2 BY-1 14-1 BY-1 14-2 BY-I 15-1 BY-I 15-2 BY-1 16-1 BY-1 16-2 MEAN+/-2 S.D.17.8 +/- 4.7 17.8 i 5.5 21.3 +/- 4.1 20.5 +/- 6.2 18.8 +/- 5.7 18.8 +/- 4.1 18.5 +/- 4.2 19.3 +/- 3.0 17.5 +/- 5.0 17.0 +/- 3.7 22.5 +/- 5.3 23.0 +/- 5.9 21.8 +/- 6.0 21.0 +/- 2.8 20.0 +/- 4.9 20.8 +/- 4.7 16.8 +/- 3.0 17.0 +/- 3.7 23.8 +/- 5.5 24.3 +/- 3.8 22.0 +/- 4.6 22.8 +/- 4.4 22.8 +/- 4.4 23.5 +/- 5.0 23.5 +/- 5.0 25.0 +/- 4.0 23.8 +/- 3.0 23.0 +/- 5.9 24.8 i 7.7 25.3 +/- 4.1 23.8 i 4.1 21.5 +/- 2.0 22.3 +/- 7.2 21.5 +/- 4.8 20.3 i 2.5 21.5 +/- 6.6 22.8 +/- 3.0 21.5 i 5.3 22.3 +/- 5.0 20.8 i 6.2 23.0 +/- 2.3 21.0 +/- 5.9 18.8 i 3.8 21.5 i 6.0 21.0 +/- 4.3 21.0 +/- 3.7 19.8 +/- 3.0 19.8 +/- 4.7 JAN -MAR APR-JUN JUL-SEP OCT-DEC 21 19 21 20 21 19 19 20 17 18 23 23 21 22 21 21 18 18 25 23 24 24 25 24 24 26 25 24 27 27 22 21 23 24 20 21 24 22 21 21 24 24 19 23 21 22 21 20 16 15 19 18 15 16 16 17 15 16 20 20 19 21 18 19 15 15 21 24 20 22 22 20 20 22 22 19 21 23 22 21 19 19 20 18 22 19 21 18 22 19 16 19 19 19 19 18 16 16 21 19 18 19 18 20 17 15 21 22 21 19 18 19 16 16 22 23 20 20 20 24 24 26 23 23 22 24 25 21 20 20 19 21 21 20 21 19 22 18 20 19 20 20 18 18 18 21 24 25 21 21 21 20 21 19 26 27 26 22 23 24 18 19 27 27 24 25 24 26 26 26 25 26 29 27 26 23 27 23 22 26 24 25 26 25 24 23 20 25 24 23 21 23 C-17 99 of 218 TABLE C-IX.1 QUARTERLY TLD RESULTS FOR BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER

+/- 2 STANDARD DEVIATIONS STATION CODE BY-201-3 BY-201-4 BY-202-1 BY-202-2 BY-203-1 BY-203-2 BY-204-1 BY-204-2 BY-205-1 BY-205-2 BY-206-1 BY-206-2 BY-207-1 BY-207-2 BY-208-1 BY-208-2 BY-209-1 BY-209-4 BY-210-3 BY-210-4 BY-21 1-1 BY-211-4 BY-212-1 BY-212-4 BY-213-1 BY-213-4 BY-214-1 BY-214-4 BY-215-1 BY-215-4 BY-216-1 BY-216-2 MEAN+/- 2 S. D.22.0 +/- 3.7 23.3 +/- 3.4 19.8 +/- 3.0 22.5 +/- 4.2 18.3 +/- 5.5 21.5 +/- 4.8 20.3 +/- 5.5 22.3 +/- 5.3 23.3 +/- 5.0 23.0 +/- 3.7 22.8 +/- 4.1 22.3 +/- 5.3 24.5 +/- 6.2 22.8 +/- 5.3 24.0 +/- 4.3 23.0 +/- 5.9 22.8 +/- 5.3 21.5 +/- 6.2 21.5 +/- 4.8 21.3 +/- 6.6 22.3 +/- 6.6 23.8 +/- 5.3 24.0 +/- 5.9 24.0 +/- 4.0 22.3 i 4.1 23.8 +/- 5.0 21.8 5 5.3 22.3 +/- 5.3 23.3 +/- 5.0 23.3 +/- 5.0 23.3 +/- 5.3 22.0 +/- 5.2 JAN -MAR APR-JUN JUL-SEP OCT-DEC 24 24 21 22 20 23 19 22 22 24 23 22 26 25 24 23 25 21 21 23 24 26 26 23 24 27 24 24 22 22 22 23 20 21 19 23 15 20 17 20 22 21 23 20 23 20 23 20 20 20 20 18 19 22 22 23 20 23 19 20 22 22 23 21 21 23 18 20 17 19 22 21 22 22 20 21 21 21 22 22 21 19 20 19 20 21 21 23 21 21 20 20 22 22 21 19 23 25 21 25 21 24 23 26 27 25 25 26 28 25 27 27 25 26 25 25 26 26 27 27 24 24 24 25 27 27 27 25 C-18 100 of 218 TABLE C-IX.2 MEAN QUARTERLY TLD RESULTS FOR THE INNER RING, OUTER RING, OTHER AND CONTROL LOCATIONS FOR BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER

+/- 2 STANDARD DEVIATIONS OF THE STATION DATA STATION CODE INNER RING+/- 2 S. D.OUTER RING OTHER CONTROL JAN-MAR APR-JUN JUL-SEP OCT-DEC 22.7 +/- 4.7 19.9 +/- 4.3 20.8 +/- 4.8 24.3 +/- 4.9 23.2 +/-20.7 +/-20.7 +/-25.3 +/-3.6 3.8 2.8 3.4 20.5 +/- 3.5 17.6 +/- 4.2 18.6 +/- 4.3 22.7 +/- 5.5 19.5 +/- 1.4 16.5 +/- 1.4 19.0 +/- 2.8 20.5 +/- 1.4 TABLE C-IX.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR BYRON NUCLEAR GENERATING STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER LOCATION INNER RING OUTER RING OTHER CONTROL SAMPLES ANALYZED 128 128 56 8 PERIOD MINIMUM 15.0 15.0 15.0 16.0 PERIOD MAXIMUM PERIOD MEAN+/- 2 S. D.29.0 28.0 27.0 21.0 21.9 +/- 5.8 22.4 +/- 5.1 19.9 +/- 5.8 18.9 +/- 3.5 INNER RING STATIONS -BY-101-1, BY-101-2, BY-102-1, BY-1 02-2, BY-103-1, BY-103-2, BY-1 04-1 BY-104-2, BY-105-1, BY-105-2, BY-106-1, BY-106-2, BY-107-1, BY-107-2, BY-108-1, BY-108-2, BY-109-1, BY-109-2, BY-1l0-1, BY-110-2, BY-111-3, BY-111-4, BY-112-3, BY-112-4, BY-113-1 BY-1 13-2, BY-1 14-1, BY-1 14-2, BY-1 15-1, BY-1 15-2, BY-1 16-1, BY-1 16-2 OUTER RING STATIONS -BY-201-3, BY-201-4, BY-202-1, BY-202-2, BY-203-1, BY-203-2, BY-204-1 BY-204-2, BY-205-1, BY-205-2, BY-206-1, BY-206-2, BY-207-1, BY-207-2, BY-208-1, BY-208-2, BY-209-1, BY-209-2, BY-21 0-1, BY-210-2, BY-21 1-1, BY-211-4, BY-212-1, BY-212-4, BY-213-1 BY-213-4, BY-214-1, BY-214-4, BY-215-1, BY-215-4, BY-216-1, BY-216-2 OTHER STATIONS -BY-01-1, BY-01-2, BY-04-1, BY-04-2, BY-06-1, BY-06-2, BY-21-1, BY-21-2, BY-22-2, BY-23-1, BY-23-2, BY-24-1, BY-24-2 CONTROL STATIONS -BY-08-1, BY-08-2 C-19 101 of 218 TABLE C-X.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 SURFACE WATER (TRITIUM LIQUID SCINTILLATION)

COLLECTION PERIOD BY-12 BY-29 JAN-MAR 01/10/05 -03/29/05 02/01/05 03/29/05 APR-JUN 04/05/05 -06/28/05 04/05/05 -06/28/05 JUL-SEP 07/05/05 -09/27/05 07/05/05 -09/27/05 OCT-DEC 10/04/05 -11/29/05 10/04/05 -11/29/05 SURFACE WATER (GROSS BETA & GAMMA SPECTROSCOPY)

COLLECTION PERIOD BY-12 BY-29 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC (1)02/01/05 03/01/05 04/05/05 05/03/05 06/07/05 07/05/05 08/02/05 09/06/05 10/04/05 11/01/05 01/10/05-02/22/05-03/29/05-04/26/05-05/31/05-06/28/05-07/25/05-08/30/05-09/27105-10/25/05-11/29/05 (1)02/01/05 -02/2205 03/01/05 -03/29/05 04/05/05 -04/26/05 05/03/05 -05/31/05 06/07/05 -06/28/05 07/05/05 -07/25/05 08/02/05 -08/30/05 09/06/05 -09/27/05 10/04/05 -10/25/05 11/01/05 -11/29/05 (1)GROUND WATER (TRITIUM & GAMMA SPECTROSCOPY)

COLLECTION PERIOD JAN-MAR APR-JUN JUL-SEP OCT-DEC BY-14-1 01/06/05 -01/27/05 02/03/05 -02/24/05 03/03/05 -03/31/05 04/07/05 -04/28/05 m BY-18 01/06/05 -01/27/05 02/03/05 -02/24/05 03/03/05 -03/31/05 04/07/05 -04/28/05 m BY-32 01/06/05 -01/27/05 02/03/05 -02/24/05 03/03/05 -03/31/05 04/07/05 -04/28/05 U (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-20 102 of 218 TABLE C-X.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 AIR PARTICULATE (GAMMA SPECTROSCOPY)

COLLECTION BY-01 BY-04 BY-06 BY-08 BY-21 PERIOD JAN-MAR 12/28/04 -03/29/05 12/28/04 -03/29/05 12/28/04 -03/29/05 12/28/04 -03/29/05 12/28/04 -03/29/05 APR-JUN 03/29/05 -06/28/05 03/29/05 -06/28/05 03/29/05 -06/28/05 03/29/05 -06/28/05 03/29/05 -06/28/05 JUL-SEP 06/28/05 -09/27/05 06/28/05 -09/27/05 06/28/05 -09/27/05 06/28/05 -09/27105 06/28/05 -09/27/05 OCT-DEC 09/27/05 -12/27/05 09/27/05 -12/27/05 09/27/05 -12/27/05 09/27/05 -12/27/05 09/27/05 -12/27/05 AIR PARTICULATE (GAMMA SPECTROSCOPY)

COLLECTION BY-22 BY-23 BY-24 PERIOD JAN-MAR 12/28/04 -03/29/05 12/28/04 -03/29/05 12/28/04 -03/29/05 APR-JUN 03/29/05 -06/28/05 03/29/05 -06/28/05 03/29/05 -06/28/05 JUL-SEP 06/28/05 -09/27/05 06/28/05 -09/27/05 06/28/05 -09/27/05 OCT-DEC 09/27/05 -12127/05 09/27/05 -12/27/05 09/27/05 -12/27/05 C-21 103 of 218 TABLE C-X.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 AIR PARTICULATE (GROSS BETA & 1-131)COLLECTION PERIOD BY-01 BY-04 BY-06 BY-08 BY-21 I IZJZOIUQ -UlI/W/IUD 2 0 01/04/05 -01/10/05 3 01/10/05 -01/18/05 4 t 01/18/05 -01/25/05 5 01/25/05 -0201/05 6

02/01/05 -02/08/05 7 02/08/05 -02/15/05 8

02/15/05 -02/22/05 9 02/22/05 -03/01/05 10

03/01/05 -03/08/05 11 03/08/05 -03/15/05 12

03/15/05 -03/22/05 13 03/2205 -03t29/05 14 t 03/29/05 -04/05/05 15 04/05/05 -04111/05 16

04/11/05 -04/19/05 17 04/19/05 -04/26/05 18 t 04/26/05 -05/03/05 19 05/03/05 -05/10/05 20

05/10/05 -05/17/05 21 05/17/05 -05/24/05 22

05/24/05 -05/31/05 23 05/31/05 -06/07/05 24 06/07/05 -06/14/05 25 06/14/05 -06/21/05 26 t 06/21/05 -06/28/05 27 06/28/05 -07/05/05 28 t 07/05/05 -07/11/05 29 07/11/05 -07/18/05 30

07/18/05 -07/25/05 31 07/25/05 -08/02/05 32

08/02/05 -08/09/05 33 08/09/05 -08/15/05 34

08/15/05 -08/23/05 35 08/23/05 -08/30/05 36

08/30/05 -09/06/05 37 09/06/05 -09/13/05 38

09/13/05 -09/20/05 39 09/20/05 -09/27/05 40 09/27/05 -10/04/05 41 10/04/05 -10/11/05 42 10/11/05 -10/18/05 43 10/18/05 -10/25/05 44 10/25/05 -11/01/05 45 11/01/05 -11/07/05 46 11/07/05 -11/15/05 47 11/15/05 -11/21/05 48 11/21/05 -11/29/05 49 11/29/05 -12106/05 50 1V206/05 -12/13/05 51 12/13/05 -12/20/05 52 12/20/05 -12/27/05 iZ/OIUQ -U IIWQIUo 01/04/05 -01/10/05 01/10/05 -01/18/05 01/18/05 -01/25/05 01/25/05 -02/01/05 02/01/05 -02/08/05 02/08/05 -02/15/05 02/15/05 -02/22/05 0222/05 -03/01/05 03/01/05 -03/08/05 03/08/05 -03/15/05 03/15/05 -03/22/05 03/22/05 -03/29/05 03/29/05 -04/05/05 04/05/05 -04/11/05 04/11/05 -04/19/05 04/19/05 -04/26/05 04/26/05 -05/03/05 05/03/05 -05/10/05 05/10/05 -05/17/05 05/17/05 -05/24/05 05/24/05 -05/31/05 05/31/05 -06/07/05 06/07/05 -06/14/05 06/14/05 -06/21/05 06/21/05 -06/28/05 06/28/05 -07/05/05 07/05/05 -07/11/05 07/11/05 -07/18/05 07118/05 -07/25/05 07/25/05 -08/02/05 08/02/05 -08/09/05 08/09/05 -08/15/05 08/15/05 -08/23/05 08/23/05 -08/30/05 08/30/05 -09/06/05 09/06/05 -09/13/05 09/13/05 -09/20/05 09/20/05 -09/27/05 09/27/05 -10/04/05 10/04/05 -10/11/05 10/11/05 -`10/18/05 10/18/05 -10/25/05 10/25/05 -11/01/05 11/01/05 -11/07/05 11/07/05 -11/15/05 11/15/05 -11/21/05 11/21/05 -11/29/05 11/29/05 -1206/05 12/06/05 -12/13105 12/13/05 -1220/05 12/20/05 -12/27/05 1JZOIUQI -U IIU/IUD1 01/04/05 -01/10/05 01/10/05 -01/18/05 01/18/05 -01/25/05 01/25/05 -02/01/05 02/01/05 -02/08/05 02/08/05 -O0215/05 02/15/05 -02/22/05 02/22/05 -03/01/05 03/01/05 -03/08/05 03/08/05 -03/15/05 03/15/05 -03/22105 03(2205 -03/29/05 03/29/05 -04/05/05 04/05/05 -04/11/05 04/11/05 -04/19/05 04/19/05 -04/26/05 04/26/05 -05/03/05 05/03/05 -05/10/05 05/10/05 -05/17/05 05/17/05 -05/24/05 05/24/05 -05/31/05 05/31/05 -06/07/05 06/07/05 -06/14/05 06/14/05 -06/21/05 06/21/05 -06/28/05 06/28/05 -07/05/05 07/05/05 -07/11/05 07/11/05 -07/18/05 07/18/05 -07/25/05 07/25/05 -08/02/05 08/02/05 -08/09/05 08/09/05 -08/15/05 08/15/05 -08/23/05 08/23/05 -08/30/05 08/30/05 -09/06/05 09/06/05 -09/13/05 09/13/05 -09/20/05 09/20/05 -09/27/05 09/27/05 -10/04/05 10/04/05 -10/11/05 10/11/05 -10/18/05 10/18/05 -10/25/05 10/25/05 -11/01/05 11/01/05 -11/07/05 11/07/05 -11/15/05 11/15/05 -11/21/05 11/21/05 -11/29/05 11/29/05 -12/06/05 12/06/05 -12/13/05 12/13/05 -12/20/05 12/20/05 -12/27/05 I~d/WuQ -UIlUDfIUa 01/04/05 -01/10/05 01/10/05 -01/18/05 01/18/05 -01/25/05 01/25/05 -0201/05 02/01/05 -02/08/05 02/08/05 -02/15/05 02/15/05 -02/22/05 02/22/05 -03101/05 03/01/05 -03/08/05 03/08/05 -03/15/05 03/15/05 -03/22/05 03/22/05 -03/29/05 03/29/05 -04/05/05 04/05105 -04/11/05 04/11/05 -04/19/05 04/19/05 -04/26/05 04/26/05 -05/03/05 05/03/05 -05/10/05 05/10/05 -05/17/05 05/17/05 -05/24/05 05/24/05 -05/31/05 05/31/05 -06/07/05 06/07/05 -06/14/05 06/14/05 -06/21/05 06/21/05 -06/28/05 06/28/05 -07/05/05 07/05/05 -07/12/05 07/12/05 -07/18/05 07/18/05 -07/25/05 07/25/05 -08/02/05 08/02/05 -08/09/05 08/09/05 -08/15/05 08/15/05 -08/23/05 08/23/05 -08/30/05 08/30/05 -09/06/05 09/06/05 -09/13/05 09/13/05 -09/20/05 09/20/05 -09/27/05 09/27/05 -10/04/05 10/04/05 -10/11/05 10/11/05 -10/18/05 10/18/05 -10/25/05 10/25105 -1101/05 11/01/05 -11/07/05 11/07/05 -11/15/05 11/15/05 -11/21/05 11/21/05 -11/29/05 11/29/05 -12/06/05 12/06/05 -1213/05 12/13/05 -12/20/05 12V20/05 -12/27/05 Let/OIwU -UIIUIUUD 01/04/05 -01/10/05 01/10/05 -01/19/05 01/19/05 -01/25/05 01/25/05 -0201/05 02/01/05 -02/08/05 02/08/05 -02/15/05 02/15/05 -02/22/05 02/22/05 -03/01/05 03/01/05 -03/08/05 03/08/05 -03/15/05 03/15/05 -03/22/05 03/22/05 -03/29/05 03/29/05 -04/05/05 04105105 -04/11/05 04/11/05 -04/19/05 04119105 -04/26/05 04/26/05 -05/03/05 05/03/05 -05/10/05 05/10/05 -05/17/05 05/17/05 -05/24/05 05/24/05 -05/31/05 05/31/05 -06/07/05 06/07/05 -06/14/05 06/14/05 -06/21/05 06/21/05 -06/28/05 06/28/05 -07/05105 07/05/05 -07/12/05 07/1205 -07/18/05 07/18/05 -07/25/05 07/25/05 -08/02O05 08/02/05 -08/09/05 08/09/05 -08/15/05 08/15/05 -08/23/05 08/23/05 -08/30/05 08/30/05 -09/06/05 09/06/05 -09/13/05 09/13/05 -09/20/05 09/20/05 -09/27/05 09/27/05 -10/04/05 10/04/05 -10/11/05 10/11/05 -10/18/05 10/18/05 -10/25/05 10/25/05 -'11/01/05 11/01/05 -11/07/05 11/07/05 -11/15/05 11/15/05 -11/21/05 11/21/05 -11/29/05 11/29/05 -12/06/05 12/06/05 -1213/05 12/13/05 -1220/05 12/20/05 -12/27/05* AIR IODINE SAMPLES COLLECTED BIWEEKLY C-22 104 of 218 TABLE C-X.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF BYRON NUCLEAR GENERATING STATION, 2005 AIR PARTICULATE (GROSS BETA & 1-131)COLLECTION BY-22 BY-23 BY-24 PERIOD 1 1:028/W4 -U0IU4WUb 12d/U104 -U1104IUb 1Z/Wl3WU4

-WIUIUQ 2 01/04/05 -01/10/05 01/04/05 -01/10/05 01/04/05 -01/10/05 3 01/10/05 -01/19/05 01/10/05 -01/18/05 01/10/05 -01/18/05 4 01/19/05 -01/25/05 01/18/05 -01/25/05 01/18/05 -01/25105 5 01/25/05 -0201/05 01/25/05 -0201/05 01/25/05 -0201/05 6 0201/05 -02/08/05 02/01/05 -0208/05 0201/05 -02/08/05 7

02/08/05 -02115/05 0208/05 -02/15/05 0208/05 -02115/05 8 02115105 -0222/05 02/15/05 -0222/05 02115/05 -02/22105 9

02/22/05 -03/01/05 02/22/05 -03/01/05 02/22/05 -03/01/05 10 03/01/05 -03/08/05 03/01/05 -03/08/05 03/01/05 -03/08/05 11

03/08/05 -03/15/05 03/08/05 -03/15/05 03/08/05 -03/15/05 12 03/15/05 -03/22105 03/15/05 -03/22)05 03/15/05 -03122/05 13

03/22/05 -03/29/05 03/22/05 -03/29/05 03/2205 -03/29/05 14 03/29/05 -04/05/05 03/29/05 -04/05/05 03/29/05 -04/05/05 15

04/05/05 -04/11/05 04/05/05 -04/11/05 04/05/05 -04/11/05 16 04/11/05 -04/19/05 04/11/05 -04/19/05 04/11/05 -04/19/05 17

04/19/05 -04/26/05 04/19/05 -04/26/05 04/19/05 -04/26/05 18 04/26/05 -05/03/05 04/26/05 -05/03/05 04/26/05 -05/03/05 19

05/03/05 -05/10105 05/03/05 -05/10/05 05/03/05 -05/10/05 20 05/10/05 -05/17/05 05/10/05 -05/17/05 05/10/05 -05/17/05 21

05/17/05 -05/24/05 05/17/05 -05/24/05 05/17/05 -05/24/05 22 05/24/05 -05/31/05 05/24/05 -05/31/05 05/24/05 -05/31/05 23

05/31/05 -06/07/05 05/31/05 -06/07/05 05/31/05 -06/07/05 24 06/07/05 -06/14/05 06/07/05 -06/14/05 06/07/05 -06/14/05 25

06/14/05 -06/21/05 06/14/05 -06/21/05 06/14/05 -06/21/05 26 06/21/05 -06/28/05 06/21/05 -06/28/05 06/21/05 -06/28/05 27

06/28/05 -07/05/05 06/28/05 -07/05/05 06/28/05 -07/05105 28 07/05/05 -07/12/05 07/05/05 -07/12/05 07/05/05 -07/12/05 29

07/12/05 -07/18/05 07/12/05 -07/18/05 07/12105 -07/18/05 30 07/18/05 -07/25/05 07/18/05 -07/25/05 07/18/05 -07/25/05 31

07/25/05 -08/02/05 07/25/05 -08/02/05 07/25/05 -08/0205 32 08/02/05 -08/09/05 08/02/05 -08/09/05 08/02/05 -08/09/05 33

08/09/05 -08/15/05 08/09/05 -08/15/05 08/09/05 -08/15105 34 08/15/05 -08/23/05 08/15/05 -08/23/05 08/15/05 -08/23/05 35

08/23/05 -08/30/05 08/23/05 -08/30/05 08/23/05 -08/30/05 36 08/30/05 -09/06/05 08/30/05 -09/06/05 08/30/05 -09/06/05 37

09106/05 -09113/05 09/06/05 -09/13/05 09/06/05 -09/13/05 38 09/13/05 -09/20/05 09/13/05 -09/20/05 09/13/05 -09/20/05 39

09/20/05 -09/27/05 09/20/05 -09/27/05 09/20/05 -09/27/05 40 09/27/05 -10/04/05 09/27/05 -10/04/05 09/27/05 -10/04/05 41 10/04/05 -10/11/05 10/04/05 -10/11/05 10/04/05 -10/11/05 42 10/11/05 -10/18/05 10/11/05 -10/18/05 10/11/05 -10/18/05 43 ^ 10/18/05 -10/25/05 10/18/05 -10/25/05 10/18/05 -10/25/05 44 10/25/05 -11/01/05 10/25/05 -11/01/05 10/25/05 -11/01/05 45

11/01/05 -11/07/05 11/01/05 -11/07/05 11/01/05 -11/07/05 46 11/07/05 -11/15/05 11/07/05 -11/15/05 11/07/05 -11/15/05 47

11/15/05 -11/21/05 11/15/05 -11/21/05 11/15/05 -11/21/05 48 11/21/05 -11/29/05 11/21/05 -11/29/05 11/21/05 -11/29/05 49

11/29/05 -12/06/05 11/29/05 -12/06/05 11/29/05 -12/06/05 50 12/06/05 -12/13/05 12/06/05 -12/13/05 12/06/05 -12/13/05 51

12/13/05 -12/20/05 12/13/05 -12/20/05 12V13/05 -12/20/05 52 12/20/05 -12/27/05 12/20/05 -12/27/05 12/20/05 -'12/27/05

' AIR IODINE SAMPLES COLLECTED BIWEEKLY (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-23 105 of 218 Intentionally left blank 106 of 218 FIGURE C-1 Surface Water -Gross Beta -Station BY-12 and BY-29 (C)Collected in the Vicinity of BNGS, 2000 -2004 BY-12 Oregon Pool of Rock River, Downstream 10.0 8.4 8.0 4.0-2.0.010 I-01.01-00 12-1-00 12-31.fl 12-31-02 12-31-03 12-30-04 BY-29 (C) Byron, Upstream 14.0 r 12.0 +-108 -04 No samples; No samples;river frozen. river frozen.No sampan;;river frozen.4.0 -2.0 no-TMA1 udw I 01-01-00 12-31-00 12-31-01 12-31-02 12-313-03 12-30.04 107 of 218 FIGURE C-1 (cont.)Surface Water- Gross Beta -Station BY-12 and BY-29 (C)Collected in the Vicinity of BNGS, 2005 BY-12 Oregon Pool of Rock River, Downstream 6.0 4--c U a.4.0-2.0 .-.X. .......V 0 1 --0 5 .0 0 -1 5- .0 -0 0 0 01-01-05 03-01-05 05-01-05 07-01-05 09-01-05 11-01-05 BY-29 (C) Byron, Upstream 8.0 6.0 4.0=j 2.0 0.0 02-01-05 04-01-05 06-01-05 08-01-05 10-01-05 12-01-05 DUE TO VENDOR CHANGE, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER 108 of 218 FIGURE C-2 Surface Water -Tritium -Stations BY-12 and BY-29 (C)Collected in the Vicinity of BNGS, 2000 -2004 BY-12 Oregon Pool of Rock River, Downstream 390G 3500.2100 2300 70U.1500-1131 01-0Q1- 12 12-3t-01 12-31-02 12-31-0 12-3-4 BY-29(C) Byron, Upstream 500.400-r 3004-200 100 +0--IU.1JU I 01-01-00 12-31-00 12-31401 12-31-2 12-31-03 12-30-04 109 of 218 FIGURE C-2 (cont.)Surface Water -Tritium -Stations BY-12 and BY-29 (C)Collected in the Vicinity of BNGS, 2005 BY-12 Oregon Pool of Rock River, Downstream 3500-3000- -2500 .-i 2000.c 1500-1000-.500- .0 , 03-3105 06-30-05 09-30-05 12-31-05 BY-29 (C) Byron, Upstream 200 ,-150 4 a.100.50 4 0 03-01-05 06-01-05 09-01-05 12-01-05 DUE TO VENDOR CHANGE, c VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER 110 of 218 FIGURE C-3 Ground Water -Tritium -Stations BY-14-1 and BY-18 Collected in the Vicinity of BNGS, 2000 -2004 BY-14-1 3200 N. German Church Road 4DD0 3w.0-H.f /-1111-01-d-I NI.0O-o140 12-31-02 12-41-01 12-11-aZ 12-31-43 12-3D-C4 BY-18 McCoy Farmstead Well 400 SWD X*_- I ao Io00 01-01-00 1%, I- /1241-iO 12.11-01 1241-02 1241-03 120-W44 111 of 218 FIGURE C-3 (cont.)Ground Water -Tritium -Stations BY-14-1 and BY-18 Collected in the Vicinity of BNGS, 2005 BY-14-1 3200 N. German Church Road 250 T-j 0.0 03/31/05 06/30/05 09-30-05 12/31/05 BY-18 McCoy Farmstead Well 250 -200 +9 150+100-50 .-I] l 03/31/05 06/30/05 09-30-05 12/31/05 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER 112 of 218 FIGURE C-4 Ground Water -Tritium -Station BY-32 Collected in the Vicinity of BNGS, 2000 -2004 BY-32 Wolford Well 500 400 2004 100 -0+-1WX. 01-00 12-31-00 12-31-01 12-31-2 12-31-03 12-304 113 of 218 FIGURE C-4 (cont.)Ground Water -Tritium -Station BY-32 Collected in the Vicinity of BNGS, 2005 BY-32 Wolford Well 250'200*I 150 +-j U C.100 (J* I 03/31/05 06/30/05 09-30-05 12/31/05 DUE TO VENDOR CHANGE, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER 114 of 218 Air Particulates

-BY-21 Collected FIGURE C-5 Gross Beta -Stations BY-08 (C) and in the Vicinity of BNGS, 2000 -2004 BY-08 (C) Leaf River a 8 4.7 IR 2 O1-11-0 12-314-0 1241-1 12-31-0 12-31.3 12-304 BYS21 Byron Nearmito N 10 e i C 1 014100 1 14t0 13.3141 12-312 t124103 1304U 115 of 218 FIGURE C-5 (cont.)Air Particulates

-Gross Beta -Stations BY-08 (C) and BY-21 Collected in the Vicinity of BNGS, 2005 BY-08 (C) Leaf River 50.0 ,-40.0 -c 9*E CL I-30.0 +20.0 -10.0 +0.0 12-01-04 02-01-05 04-01-05 06-01-05 08-01-05 10-01-05 12-01-05 BY-21 Byron Nearsite N 40.0 T 30.0 4-c 9*go 9 I-20.0 +10.0 +0.0 12-01-04 02-01-05 04-01-05 06-01-05 08-01-05 10-01-05 12-01-05 DUE TO VENDOR CHANGE, THE REPORTED UNITS CHANGED FROM E-02 PCI/M3 TO E-03 PCIM3 116 of 218 FIGURE C-6 Air Particulates

-Gross Beta -Stations BY-22 and BY-23 Collected in the Vicinity of BNGS, 2000 -2004 BYa22 Byron Nearsite ESE a 09 4 2 0 -01,01-ca 12-3114 12,31-Di 12-1-2 12-314S1 12%"9:64 BY-23 Byron Nuafity S 10.D i ,.0 01-1401 12-31410 1261Ot 123140 124143 124-44 117 of 218 FIGURE C-6 (cont.)Air Particulates

-Gross Beta -Stations BY-22 and BY-23 Collected in the Vicinity of BNGS, 2005 BY-22 Byron Nearsite ESE 50.0 T 40.0 +CL 30.0 +20.0 +10.0 +OX.I 12-01-04 02-01-05 04-01-05 06-01-05 08-01-05 10-01-05 12-01-05 BY-23 Byron Nearsite S 50.0 T 40.0o -E a.c 9 30.0 4-20.0-10.0+nn UU 4 V.V 12-01-04 02-01-05 04-01-05 06-01-05 08-01-05 10-01-05 12-01-05 DUE TO VENDOR CHANGE, THE REPORTED UNITS CHANGED FROM E-02 PCI/M3 TO E-03 PCI/M3 118 of 218 4 FIGURE C-7 Air Particulates

-Gross Beta -Station BY-24 Collected in the Vicinity of BNGS, 2000 -2004 BY.24 Byrom Nearsite SW 1.00 6.0 DI¶414M 124140 143141 124i1-0 12-31-03 12-3D-4 119 of 218 FIGURE C-7 (cont.)Air Particulates

-Gross Beta -Station BY-24 Collected in the Vicinity of BNGS, 2005 BY-24 Byron Nearsite SW 40.0 ,-30.0 +CO)E 9 Lu 20.0 .-10.0 -0.0 12-01-04 02-01-05 04-01-05 06-01-05 08-01-05 10-01-05 12-01-05 DUE TO VENDOR CHANGE, THE REPORTED UNITS CHANGED FROM E-02 PCI/M3 TO E-03 PCI/M3 120 of 218 FIGURE C-8 Air Particulates

-Gross Beta -Stations BY-01 and BY-04 Collected in the Vicinity of BNGS, 2005 BY-01 60.0 50.0 30.0 6 20.0 10.0 12-31-04 02-28-05 04-30-05 06-30-05 08-31-05 10-31-05 12-31-05 BY-04 60.0 50.0-40.0--30.0 V2 20.0 -10.0 0.0'12-31-04 02-28-05 04-30-05 06-30-05 08-31-05 10-31-5 12-31-05 AIR PARTICULATE GROSS BETA ANALYSES OF FAR FIELD LOCATIONS STARTED IN JULY 2005 121 of 218 FIGURE C-9 Air Particulates

-Gross Beta -Station BY-06 Collected in the Vicinity of BNGS, 2005 BY-06 60.0.50.0*X* 40.0 .-at 30.0-MU 9 2=~ 20.0--10.0 +0.0 I i i 12-31-04 02-28-05 04-30-05 06-30-05 08-31-05 10-31-05 12-31-05 AIR PARTICULATE GROSS BETA ANALYSES OF FAR FIELD LOCATIONS STARTED IN JULY 2005 122 of 218 APPENDIX D INTER-LABORATORY COMPARISON PROGRAM 123 of 218 124 of 218 TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1 OF 3)Identification Reported Known Ratio (c)Mbnth/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)March 2005 E4522-396 Milk Sr-89 Sr-90 pCi/L 96.9 pCi/L 16.9 107 17.9 0.91 0.94 A A E4523-396 Milk 1-131 Ce-141 Cr-51 Cs-1 34 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pci pCi pCi pCi pCi pCi pCi 82.7 217 314 123 125 110 158 118 191 140 150 278 105 95.6 84.4 112 92.8 162 102 92.3 229 334 139 130 115 160 111 198 144 172 250 104 97.1 86.3 120 83.2 148 108 0.90 0.95 0.94 0.89 0.96 0.96 0.99 1.06 0.96 0.97 0.87 1.11 1.01 0.98 0.98 0.93 1.12 1.09 0.94 A A A A A A A A A A A A A A A A A A A E4525-396 AP Ce-141 Cr-51 Cs-1 34 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 E4524-396 Charcoal 1-131 pCi 67.4 60.7 1.11 1.01 1.02 A A A June 2005 E4630-396 Milk Sr-89 Sr-90 pCi/L 89.4 88.1 pCi/L 11.6 11.4 E4631-396 Milk 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCUL pCi/L pCi pCi pCi pCi pCi pCi pci pCi 82.3 91.6 278 81.1 180 124 61.1 156 136 79.2 263 69.7 135 94.9 48 120 104 86.9 92.4 303 95.0 189 125 63.9 155 145 64.2 210 66.1 131 87.0 44.4 108 101 0.95 0.99 0.92 0.85 0.95 0.99 0.96 1.01 0.94 1.23 1.25 1.05 1.03 1.09 1.09 1.11 1.03 A A A A A A A A A w w A A A A A A E4633-396 AP Ce-141 Cr-51 Cs-134 Cs-137 Mn-54 Fe-59 Zn-65 Co-60 E4632-396 Charcoal 1-131 pCi 88.9 92.5 0.96 A D-1 125 of 218 TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 2 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)September 2005 E4766-396 Milk E4767-396 Milk E4769-396 AP Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L 135.0 146.0 pCi/L 9.7 11.5 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pci pCi pCi pCi pCi pCi pCi pCi pCi pC!87.5 203 279 102 178 55.3 81.8 59.9 120 146 193 267 78.4 166 53.7 81.6 59.6 107 133 94.3 233 338 122.0 195 63.4 92.0 61.0 123 167 169 246 88.8 142 46.0 66.8 44.3 89.6 122 0.92 0.84 0.93 0.87 0.83 0.84 0.91 0.87 0.89 0.98 0.98 0.87 1.14 1.09 0.88 1.17 1.17 1.22 1.35 1.19 1.09 1.00 A A A A A A A A A A A A A A A A A W N (1)A A A E4768-396 Charcoal 1-131 63.9 64.2 December 2005 E4766-396 Milk E4767-396 Milk Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L 114 128 pCi/L 11.6 10.3 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pC!pCi pC!pCi pCi pci pCi pCi pCi 79.6 202 185 74.9 177 73.9 152 97.5 161 102 221 195 68.4 194 77.4 171 94.2 173 109 74.6 224 193 87.3 189 77.5 152 82.4 154 111 201 173 78.3 170 69.4 137 73.9 138 99.1 0.89 1.13 1.07 0.90 0.96 0.86 0.94 0.95 1.00 1.18 1.05 0.92 1.10 1.13 0.87 1.14 1.12 1.25 1.27 1.25 1.10 A A A A A A A A A A A A A A A A A W W W A E4633-396 AP Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 D-2 126 of 218 TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 3 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)December 2005 E4632-396 Charcoal 1-131 pCi 73.3 73.3 1.00 A (1) New technician

-AP not counted in petri dish resulted in high Fe-59 activity.

Counting in petri dish, the Fe-S9 would have been acceptable as evidenced by the 4Q05 AP recount data. NCR 06-01 (a) Teledyne Brown Engineering reported result.(b) The Analyfics known value Is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.(c) Ratio of Teledyne Brown Engineering to Analyfics results.(d) Analytics evaluation based on TBE internal QC limits: A= Acceptable.

Reported result falls within ratio limits of 0.80-1.20.

W-Acceptable with warning. Reported result falls within 0.70-0.80 or 1.20-1.30.

N = Not Acceptable.

Reported result falls outside the ratio limits of < 0.70 and > 1.30.D-3 127 of 218 TABLE D-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1 OF 1)Identification Reported Known Month/Year Number Media Nuclide Units Value (a) Value (b) Control Limits Evaluation (c)May 2005 Rad 61 Water Sr-89 Sr-90 Ba-133 Cs-134 Cs-137 Co-60 Zn-65 Gr-A Gr-B H-3 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L 37.5 5.37 88.6 70.5 201 37.5 122 35.5 35.6 24600 41.3 5.92 88.4 78.6 201 37.0 118 37.0 34.2 24400 32.6 -50.0 0.00- 14.6 73.1 -104 69.9 -87.3 184 -218 28.3 -45.7 97.6 -138 21.0 -53.0 25.5 -42.9 20200 -28600 A A A A A A A A A A Rad 61 Water 1-131 pCi/L 13.6 15.5 10.3 -20.7 A November 2005 Rad 63 Water Sr-89 Sr-90 Ba-1 33 Cs-1 34 Cs-137 Co-60 Zn-65 Gr-A Gr-B H-3 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L 18.0 16.6 31.7 30.8 26.8 83.9 109 19.5 34.0 12400 19.0 16.0 31.2 33.9 28.3 84.1 105 23.3 39.1 12200 10.3 -27.7 7.37 -24.7 22.5 -39.9 25.2 -42.6 19.6 -37.0 75.4 -92.8 86.8- 123 13.2 -33.4 30.4 -47.8 10100 -14300 A A A A A A A A A A Rad 63 Water 1-131 pCi/L 17.8 17.4 12.2 -22.6 A (a) Teledyne Brown Engineering reported result.(b) The ERA known value is equal to 100Y/ of the parameterpresent in the standard as detemnined by gravimetric and/or volumetric measurements made during standard preparation.(c) ERA evaluation:

A=acceptable.

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

Reported result falls outside of the Control Limits. CE=check for Error. Reported result falls within the Control Limits and outside of the Warning Limit.D-4 128 of 218 TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)April 2005 05-MaW1 3 Water Cs-134 Cs-137 Co-57 Co-60 H-3 Mn-54 Sr-90 Zn-65 Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L 108 305 215 241 283 314 0.093 509 127 88.90 -165.10 332 232.40 -461.60 227 158.90 -295.10 251 175.70 -326.30 280 196.00 -364.00 331 231.70 -430.30 no range given (1)496 347.20 -644.80 A A A A A A A A MaS13 Soil Cs-134 Cs-137 Co-57 Co-60 Mn-54 K-40 Zn-65 Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L 655 310 234 219 512 642 890 759 315 242 212 485 604 810 531.30 -986.70 220.50 -409.50 169.40 -314.60 148.40 -275.60 339.50 -630.50 422.80 -785.20 567.00- 1053 A A A A A A A GrW13 Water Gr-A Gr-B RdF13 GrF13 AP Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/L Bq/L Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 0.601 0.525 >0.0 -1.05 1.54 1.67 0.84 -2.51 3.26 2.05 4.78 3.02 3.31 1.15 3.14 3.51 2.26 4.92 3.03 3.33 1.35 3.14 2.46 -4.56 1.58 -2.94 3.44 -6.40 2.12 -3.94 2.33 -4.33 0.95- 1.76 2.20 -4.08 A A A A A A A A A A A AP Gr-A Gr-B Bq/sample 0.0764 0.232 >0.0 -0.46 Bq/sample 0.305 0.297 0.15 -0.45 April2005 RdV13 Vegetation Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg 5.45 4.80 13.4 3.67 6.45 1.49 7.71 5 4.1 9.88 3.15 5.18 1.65 6.29 3.50 -6.50 2.88 -5.34 6.92- 12.84 2.21 -4.10 3.63 -6.73 1.16 -2.15 4.40 -8.18 A A A*A A A A October 2005 05-MaW14 Water Cs-134 Cs-137 Co-57 Co-60 H-3 Mn-54 Sr-90 Zn-65 Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L 142 302 251 243 547 383 8.75 324 167 333 272 261 527 418 8.98 330 116.90 -217.10 233.10 -432.90 190.40 -353.60 182.70 -339.30 368.90 -685.10 292.60 -543.40 6.29 -11.67 231.00 -429.00 A A A A A A A A D-5 129 of 218 TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)TELEDYNE BROWN ENGINEERING, 2005 (PAGE 2 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)October 2005 MaS14 Soil Cs-134 Cs-137 Co-57 Co-60 Mn-54 K-40 Zn-65 Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L 494 446 506 289 460 626 889 568 439 524 287 439 604 823 397.60 -738.40 307.30 -570.70 366.80 -681.20 200.90 -373.10 307.30 -570.70 422.80 -785.20 576.10 -1070 A A A A A A A GrW14 Water Gr-A Gr-B Bq/L 0.858 0.79 Bq/L 1.22 1.35 0.21 -1.38 0.85- 1.92 A A October 2005 RdF14 AP Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 4.11 3.16 6.14 2.86 4.54 2.12 4.28 3.85 3.23 6.2 2.85 4.37 2.25 4.33 2.70 -5.01 2.26 -4.20 4.34 -8.06 2.00 -3.71 3.06 -5.68 1.58 -2.93 3.03 -5.63 A A A A A A A GrF14 AP Gr-A Gr-B Bq/sample 0.304 0.482 >0.0 -0.80 Bq/sample 0.858 0.827 0.55 -1.22 A A RdV13 Vegetation Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg 4.35 5.99 17.0 4.87 7.40 2.03 11.8 4.09 5.4 13.30 4.43 6.57 2.42 10.2 2.86 -5.32 3.80 -7.06 9.31 -17.29 3.10 -5.76 4.60 -8.54 1.69 -3.15 7.14- 13.26 A A W A A A A* MAPEP reported the result as acceptable although the reported value of 13.4 is higher than the acceptance range upper limit of 12.84. The acceptance range was expanded to +- 40%16 bias due to confusion regarding preparation process. MAPEP did not corrected the acceptance range on the report.(1) The Sr-90 in water was a MAPEP false positive test. The TBE reported resuit of 0.093 +/- 0.0908 Bq/L was the forced Sr-90 activity and uncertainty, as required by MAPEP. The MDC for the sample was 0.145 pCi/L.(a) Teledyne Brown Engineering reported result.(b) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.(c) DOE/MAPEP evaluation:

A=acceptable, W-acceptable with waming, N=not acceptable.

D-6 130 of 218 TABLE D-4 ERA18) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM ENVIRONMENTAL, INC., 2005 (Page 1 of 2)Concentration (pCi/L)Lab Code Date Analysis Laboratory ERA Control Resultf Result Limits Acceptance STW-1051 STW-1051 STW-1052 STW-1052 STW-1052 STW-1052 STW-1052 STW-1053 STW-1053 STW-1054 STW-1054 STW-1054 STW-1055 STW-1055 STW-1056 STW-1056 STW-1056 STW-1056 STW-1056 STW-1057 STW-1057 STW-1058 STW-1059 STW-1059 STW-1059 STW-1060 STW-1067 STW-1067 STW-1068 STW-1068 STW-1068 STW-1068 STW-1068 STW-1069 STW-1069 STW-1070 STW-1070 STW-1070 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 Sr-89 Sr-90 Ba-133 Co-60 Cs-134 Cs-137 Zn-65 Gr. Alpha Gr. Beta Ra-226 Ra-228 Uranium Sr-89 Sr-90 Ba-133 Co-60 Cs-1 34 Cs-137 Zn-65 Gr. Alpha Gr. Beta 1-131 Ra-226 Ra-228 Uranium H-3 Sr-89 Sr-90 Ba-133 Co-60 Cs-134 Cs-137 Zn-65 Gr. Alpha Gr. Beta Ra-226 Ra-228 Uranium 28.0 +/- 1.2 25.1 +/-0.7 52.9 +/- 2.8 54.4 +/- 0.4 67.7 +/- 1.8 39.6 +/- 1.8 159.7 +/- 3.0 55.1 +/- 1.8 46.8 +/- 1.3 13.7 +/- 1.5 13.3 +/- 0.6 5.1 +/-0.2 45.1 +/-4.1 7.5 +/- 0.9 87.1 +/-2.0 38.4 +/- 0.8 75.3 +/- 0.7 201.0 +/- 8.4 130.0 +/- 6.7 42.7 +/- 2.9 34.0 +/- 0.4 14.7 +/- 0.5 6.6 +/-0.1 19.3 +/- 0.7 9.6 +/-0.1 24100.0 +/- 109.0 29.1 +/- 3.0 36.0 +/- 0.6 107.0 +/- 1.7 15.2 +/- 0.2 89.1 +/- 0.3 72.1 +/-1.0 67.4 +/- 1.4 44.3 +/- 1.5 58.4 +/- 2.1 16.6 +/- 1.5 6.2 +/- 0.3 4.5 +/- 0.1 29.4 24.4 53.4 56.6 64.9 40.2 161.0 67.9 51.1 14.1 13.7 5.0 41.3 5.9 88.4 37.0 78.6 194.0 118.0 37.0 34.2 15.5 7.6 18.9 10.1 24400.0 28.0 33.8 106.0 13.5 92.1 72.7 65.7 55.7 61.3 16.6 6.2 4.5 20.7 -38.1 15.7 -33.1 44.2 -62.6 47.9 -65.3 56.2 -73.6 31.5 -48.9 133.0 -189.0 38.5 -97.3 38.5 -97.3 10.4 -17.8 7.8 -19.6 0.0 -10.2 32.6 -50.0 0.0 -14.6 73.1 -104.0 28.3 -45.7 69.9 -87.3 184.0 -218.0 97.6 -138.0 21.0 -53.0 25.5 -42.9 10.3 -20.7 5.6 -9.5 10.7 -27.1 4.9 -15.3 20200.0 -28600.0 19.3 -36.7 25.1 -42.5 87.7 -124.0 4.8 -22.2 83.4 -101.0 64.0 -81.4 54.3 -77.1 31.6 -79.8 44.0 -78.6 12.3 -20.9 3.5 -8.9 0.0 -9.7 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass D-7 131 of 218 TABLE D-4 ERA(a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM ENVIRONMENTAL, INC., 2005 (Page 1 of 2)Concentration (pCi/L)Lab Code Date Analysis Laboratory ERA Control Result? Result' Limits Acceptance STW-1072 11/15/05 Sr-89 20.6 +/- 0.4 19.0 10.3 -27.7 Pass STW-1072 11/15/05 Sr-90 15.0 +/- 0.3 16.0 7.3 -24.7 Pass STW-1073 11/15/05 Ba-133 31.8 +/- 1.8 31.2 22.5 -39.9 Pass STW-1073 11/15/05 Co-60 85.0 +/- 1.4 84.1 75.4 -92.8 Pass STW-1073 11/15/05 Cs-134 37.2 +/-2.1 33.9 25.2 -42.6 Pass STW-1073 11/15/05 Cs-137 27.8 +/- 0.7 28.3 19.6 -37.0 Pass STW-1073 11/15/05 Zn-65 109.0

1.0 105.0 86.8 -123.0 Pass STW-1074 a 11/15/05 Gr. Alpha 41.1 +/- 1.2 23.3 13.2 -33.4 Fail STW-1074 11/15/05 Gr. Beta 42.7 +/- 0.5 39.1 30.4 -47.8 Pass STW-1075 11/15/05 1-131 20.5 +/- 0.6 17.4 12.2 -22.6 Pass STW-1076 11/15/05 Ra-226 7.8 +/- 0.6 8.3 6.2 -10.5 Pass STW-1076 6 11/15/05 Ra-228 5.5 +/- 0.6 3.5 2.0 -5.0 Fail STW-1076 11/15/05 Uranium 15.5 +/- 0.3 16.1 10.9 -21.3 Pass STW-1077 11/15/05 H-3 12500.0 +/- 238.0 12200.0 10100.0 -14300.0 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.

a Results are presented as the known values, expected laboratory precision (1 sigma, I determination) and control limits as provided by ERA.d The original samples were calculated using an Am-241 efficiency.

The samples were spiked with Th-232. Samples were recounted and calculated using the Th-232 efficiency.

Results of the recount: 27.01 +/- 2.35 pCiIL.Decay of short-ived radium daughters contributed to a higher counting rate. Delay of counting for 100 minutes provided better results.The reported result was the average of the first cycle of 100 minutes, the average of the second cycle counts was 4.01 pCi/L D-8 132 of 218 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)ENVIRONMENTAL, INC., 2005 (Page 1 of 3)Concentration b Known Control Lab Code' Date Analysis Laboratory result Activity Limits 0 Acceptance STW-1045 01/01/05 Gr. Alpha STW-1045 01/01/05 Gr. Beta 0.45 +/- 0.10 1.90 +/- 0.10 0.53 1.67 0.00 -1.05 0.84 -2.51 Pass Pass STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STVE-1047 STVE-1047 STVE-1047 STVE-1047 STVE-1047 STVE-1047 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 Fe-55 H-3 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 Tc-99 U-233/4 U-238 Zn-65 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Zn-65 Am-241 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 1.62 +/- 0.12 239.40 i 1.20 248.70 i 1.00 115.50 i 1.80 328.50 i 1.70 64.90 +/- 7.00 304.00 +/- 9.70 334.80 +/- 1.90 7.10 +/- 1.60 0.01 +/- 0.02 2.50 +/- 0.14 0.70 +/- 0.80 43.20 +/- 1.40 3.31 +/- 0.20 3.38 +/- 0.20 538.40 +/- 3.80 10.60 i 0.20 3.00 i 0.20 4.80 i 0.40 4.10 i 0.30 5.10 i 0.30 6.20 +/- 0.50 96.60 i 10.00 264.00 +/- 2.00 226.50 +/- 2.20 760.60 +/- 3.70 336.20 +/- 3.60 663.70 +/- 18.00 541.30 +/- 3.90 924.30 +/- 17.20 0.60 +/- 0.80 78.00 +/- 4.80 514.60 +/- 18.70 47.90 i 4.00 226.30 i 8.60 851.30 i 7.30 1.72 227.00 251.00 127.00 332.00 75.90 280.00 331.00 9.00 0.02 2.40 0.00 42.90 3.24 3.33 496.00 9.88 3.15 5.00 4.11 5.18 6.29 109.00 242.00 212.00 759.00 315.00 604.00 485.00 1220.00 0.48 89.50 640.00 62.50 249.00 810.00 1.20 -2.24 158.90 -295.10 175.70 -326.30 88.90 -165.10 232.40 -431.60 53.13 -98.67 196.00 -364.00 231.70 -430.30 0.00 -20.00 0.00 -1.00 1.68 -3.12 0.00 -5.00 30.03 -55.77 2.27 -4.21 2.33 -4.33 347.20 -644.80 6.92 -12.84 2.21 -4.10 3.50 -6.50 2.88 -5.34 3.63 -6.73 4.40 -8.18 76.30 -141.70 169.40 -314.60 148.40 -275.60 531.30 -986.70 220.50 -409.50 422.80 -785.20 339.50 -630.50 854.00 -1586.00 0.00 -1.00 62.65 -116.35 448.00 -832.00 43.75 -81.25 174.30 -323.70 567.00 -1053.00 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STAP-1 050 STAP-1050 01/01/05 Gr. Alpha 01/01/05 Gr. Beta 0.11 +/- 0.03 0.38 +/- 0.05 0.23 0.30 0.00 -0.46 0.15 -0.45 Pass Pass D-9 133 of 218 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)ENVIRONMENTAL, INC., 2005 (Page 2 of 3)Concentration b Known Control Lab Codev Date Analysis Laboratory result Activity Limits " Acceptance STAP-1 049 STAP-1 049 STAP-1 049 STAP-1 049 STAP-1 049 STAP-1049 STAP-1049 STAP-1049 STAP-1 049 e STAP-1049 STAP-1049 STAP-1049 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 0.10 +/- 0.04 4.76 +/- 0.64 2.84 +/- 0.22 3.54 +/- 0.37 2.20 +/- 0.27 3.15 +/- 0.21 0.16 +/- 0.04 0.17 +/- 0.02 2.24 +/- 0.34 0.34 +/- 0.02 0.35 +/- 0.02 3.12 +/- 0.15 0.10 4.92 3.03 3.51 2.26 3.33 0.20 0.17 1.35 0.34 0.35 3.14 0.07 -0.13 3.44 -6.40 2.12 -3.94 2.46 -4.56 1.58 -2.94 2.33 -4.33 0.14 -0.25 0.14 -0.25 0.95 -1.76 0.24 -0.44 0.25 -0.46 2.20 -4.08 Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1062 STW-1062 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1 063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 f 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 Fe-55 H-3 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 Tc-99 U-233/4 U-238 Zn-65 Gr. Alpha Gr. Beta Am-241 Co-57 Co-60 Cs-134 Cs-137 K40 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 2.21 +/- 0.13 293.20 +/- 7.30 275.70 +/- 1.30 171.80 +/- 4.00 342.10 +/- 2.20 167.80 +/- 9.30 514.20 +/- 12.60 437.00 +/- 2.50 105.10 +/- 3.60 1.64 +/- 0.12 2.32 +/- 0.13 9.20 +/- 1.30 72.30 +/- 2.30 4.11 +/- 0.18 4.14 +/- 0.18 364.60 +/- 4.90 0.57 +/- 0.05 1.36 +/- 0.05 48.40 +/- 3.90 608.30 +/- 2.80 322.70 +/- 2.40 632.10 +/- 5.20 512.40 +/- 4.20 720.50 +/- 19.00 516.80 +/- 5.10 366,50 +/- 13.30 68.80 +/- 15.00 0.00 +/- 0.00 602.90 +/- 17.20 61.50 +/- 1.00 164.50 +/- 16.70 874.70 +/- 8.40 2.23 272.00 261.00 167.00 333.00 196.00 527.00 418.00 100.00 1.91 2.75 8.98 66.50 4.10 4.26 330.00 0.79 1.35 81.10 524.00 287.00 568.00 439.00 604.00 439.00 445.00 60.80 0.00 757.00 52.50 168.00 823.00 1.56 -2.90 190.40 -353.60 182.70 -339.30 116.90 -217.10 233.10 -432.90 137.20 -254.80 368.90 -685.10 292.60 -543.40 70.00 -130.00 1.34 -2.48 1.93 -3.58 6.29 -11.67 46.55 -86.45 2.87 -5.33 2.98 -5.54 231.00 -429.00 0.21 -1.38 0.85 -1.92 56.77 -105.43 366.80 -681.20 200.90 -373.10 397.60 -738.40 307.30 -570.70 422.80 -785.20 307.30 -570.70 311.50 -578.50 42.56 -79.04 0.00 -0.00 529.90 -984.10 36.75 -68.25 117.60 -218.40 576.10 -1070.00 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass D-10 134 of 218 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEPf ENVIRONMENTAL, INC., 2005 (Page 3 of 3)Concentration b Known Control Lab Codev Date Analysis Laboratory result Activity Limits a Acceptance STVE-1 064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 0.18 +/- 0.03 15.90 +/- 0.20 4.80 +/- 0.10 4.60 +/- 0.20 5.90 +/- 0.30 7.20 +/- 0.20 0.04 +/- 0.02 0.13 +/- 0.02 2.80 +/- 0.30 0.28 +/- 0.03 0.33 +/- 0.04 11.00 +/- 0.50 0.23 13.30 4.43 4.09 5.43 6.57 0.00 0.16 2.42 0.33 0.35 10.20 0.16 -0.30 9.31 -17.29 3.10 -5.76 2.86 -5.32 3.80 -7.06 4.60 -8.54 0.00 -1.00 0.11 -0.21 1.69 -3.15 0.23 -0.43 0.24 -0.45 7.14 -13.26 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STAP-1065 STAP-1065 07/01/05 Gr. Alpha 07/01/05 Gr. Beta 0.30 +/- 0.04 0.97 +/- 0.06 0.48 0.83 0.00 -0.80 0.55 -1.22 Pass Pass STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 0.14 +/- 0.03 5.81 +/- 0.17 2.79 +/- 0.14 3.67 +/- 0.12 2.93 +/- 0.23 4.11 +/- 0.26 0.11 +/- 0.02 0.10 +/- 0.01 2.25 +/- 0.29 0.28 +/- 0.02 0.28 +/- 0.02 4.11 +/- 0.26 0.16 6.20 2.85 3.85 3.23 4.37 0.10 0.09 2.25 0.27 0.28 4.33 0.11 -0.21 4.34 -8.06 2.00 -3.71 2.70 -5.01 2.26 -4.20 3.06 -5.68 0.07 -0.13 0.06 -0.12 1.58 -2.93 0.19 -0.35 0.20 -0.37 3.06 -5.68 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass* Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho b Results are reported In units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation) as requested by the Department of Energy.c Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

d MAPEP results are presented as the known values and expected laboratory precision (1 sigma, I determination) and control limits as defined by the MAPEP.The strontium carbonate precipitates were redissolved and processed.

The average of the three analyses was 1.34 pCil/L, although the recovery was only 30%. The result of a new analysis was 1.56 pCUL.f Incorrect sample weight used in calculation.

Result of recalculation:

97.0 +/- 7.8 Bqlkg.D-1 1 135 of 218 Intentionally left blank 136 of 218 APPENDIX E 137 of 218 138 of 218 TABLE OF CONTENTS INTRODUCTION....................................................................................................................1

SUMMARY

.............................................................................................................................2 1.0. EFFLUENTS.......................................................................................................3

1.1. Gaseous

Effluents to the Atmosphere

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

3 1.2. Liquids Released to Rock River ..............................................

3 2.0. SOLID RADIOACTIVE WASTE .............................................

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

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

3 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 ...........................................

5 3.1.2.1. Dose to Thyroid ..............................................

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

5 3.3. Assessment of Dose to Member of Public ..........................................

.5 4.0. SITE METEOROLOGY

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

6 i 139 of 218 Table of Contents (cont.)APPENDIX E-1 DATA TABLES AND FIGURES .........................................................

E-1.1 Station Releases Table 1.1-1 Gaseous Effluents

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

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

E-1.2 Table 1.2-1 Liquid Effluents

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

E-1.3 Table 3.1-1 Maximum Doses Resulting from Airborne Releases .................

E-1.4 Table 3.2-1 Maximum Doses Resulting from Liquid Discharges

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

E-1.8 Table 3.4-1 Maximum Doses Resulting from Airborne Releases Based On Concurrent Meteorological Data .....................................

E-1.12 ii 140 of 218 INTRODUCTION Liquid effluents from Byron Station are released to the Rock 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 weekly grab samples and grab samples of batch releases prior to the release of noble gases as well as continuously collected composite samples of iodine and particulate radioactivity 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 isotopic composition of effluents and meteorological data.Environmental monitoring is conducted by sampling at indicator and control (background) locations in the vicinity of Byron Station to measure changes in radiation or radioactivity levels that may be attributable to station operation.

If significant changes attributable to Byron Station are measured, these changes are correlated with effluent releases.

External gamma radiation exposure from noble gases and internal dose from 1-131 in milk are the critical pathways at this site; however, an environmental monitoring program is conducted which also includes other pathways.141 of 218

SUMMARY

Calculations based on gaseous and liquid effluents, Rock River flow and meteorological data indicate that public dose due to radioactive material attributable to Byron Station during the period does not exceed regulatory or Offsite Dose Calculation Manual (ODCM) limits.The Total Effective Dose Equivalent (TEDE) due to licensed activities at Byron Station calculated for the maximally-exposed individual for the period is 2.03E-02 mrem. The annual limit on TEDE is 100 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 40CRF190.There were no additional operational controls implemented which affected the areas of radiological effluents in 2005.There were no measurements which exceeded the reporting levels, including any which would not have been attributable to station effluents.

The results of the current radiological environmental monitoring program are approximately the same as those found during the pre-operational studies conducted at Byron Station.2 142 of 218

1.0 EFFLUENTS

1.1 Gaseous Effluents to the Atmosphere Measured concentrations and isotopic composition of noble gases, radioiodine, tritium and particulate radioactivity released to the atmosphere during the year, are listed in Table 1.1-1.A total of 5.65E+01 curies of fission and activation gases were released with a maximum quarterly release rate of 5.76E+00 pCi/sec, for both units.A total of 7.17E-03 curies of 1-131 were released during the year with a maximum average quarterly release rate of 5.16E-04 pCi/sec.A total of 1.53E-05 curies were released as airborne particulate matter with a maximum average release rate of 1I.12E-06 pCi/sec.Alpha-emitting radionuclides were below detectable limits A total of 5.78E+00 curies of tritium were released with a maximum average quarterly release rate of 4.15E-01 uCi/sec.1.2 Liquids Released to Rock River A total of 2.66E+1 0 liters of radioactive liquid wastes (prior to dilution) containing 4.40E-02 curies (excluding tritium, noble gases and alpha) were discharged from the station. These wastes were released at a maximum quarterly average concentration of 3.58E-09 pCi/ml. A total of 2.52E+03 curies of tritium was released.Quarterly release totals of principal radionuclides in liquid effluents are given in Table 1.2-1.2.0 SOLID RADIOACTIVE WASTE Solid radioactive wastes were shipped by truck. For detail, refer to Bryon Station 2005 Effluent Report.3.0 DOSE TO MAN 3.1 Gaseous Ffluent Pathways Table 3.1-1 summarizes the doses resulting from releases of airborne radioactivity via the different exposure pathways.3 143 of 218

3.1.1 Nnhle

Gases 3.1.1.1 Gamma Dose Rates Offsite Gamma air and whole body dose rates are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic composition of the noble gases, and average meteorological data for the period. Dose rates based on concurrent meteorological data are shown in Table 3.4-1. Based on measured effluents and average meteorological data, the maximum total body dose to an individual would be 6.10E-03 mrem for the year (Table 3.1-1), with an occupancy or shielding factor of 0.7 included.

The maximum total body dose based on measured effluents and concurrent meteorological data would be 2.21 E-04 mrem (Table 3.4-1). The maximum gamma air dose was 2.28E-03 mrad (Table 3.1-1) based on measured effluents and average meteorological data, and 3.35E-04 mrad based on concurrent meteorological data (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 "semi-infinite" for purpose of calculating the dose from beta radiation incident on the skin. However, the actual dose to sensitive skin tissues is difficult to calculate due to the effect of the beta particle energies, thickness of inert skin and clothing covering sensitive tissues. For purposes of this report the skin is taken to have a thickness of 7.0 mg/cm 2 and an occupancy factor of 1.0 is used. The skin dose based on concurrent meteorological data for the year was 6.99E-04 mrem (Table 3.4-1)The maximum offsite beta air dose for the year based on measured effluents and average meteorological data, was 1.72E-03 mrad (Table 3.1-1). The beta air dose based on concurrent 4 144 of 218 meteorological data was 1.35E-03 mrad (Table 3.4-1).3.1.2 Radioactive Iodine The human thyroid exhibits a significant capacity to concentrate ingested or inhaled iodine. The minimal levels of radioiodine, 1-131, released during routine operation of the station, may be made available to man resulting in a dose to the thyroid. The principal pathway of interest for this radionuclide is ingestion of radioiodine in milk. Calculations made for 2005 and previous years indicate that contributions to doses from inhalation of 1-131 and 1-133 and ingestion of 1-133 in milk are negligible.

3.1.2.1 Dose to Thyrid The hypothetical thyroid dose to the maximum exposed individual living near the station via ingestion of milk was calculated.

The radionuclide considered was 1-131 and the source of milk was taken to be the nearest dairy farm with the cows pastured from May through October. The maximum thyroid dose was less than 3.98E+00 mrem during the year (Table 3.1-1 [infant]).

3.2 Liquid

Fffluent 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 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 Exelon Offsite Dose Calculation Manual. The maximum whole body dose for the year was 1.42E-02 mrem (adult) and no organ dose exceeded 2.28E-02 mrem (Table 3.2-1 [adult]).3.3 Assessment of Dose to Member of Public During the period January to December, 2005, Byron Station did not exceed the below limits as shown in Table 3.1-1 and Table 3.2-5 145 of 218 I (based on yearly average meteorological data), and Table 3.4-1 (based on concurrent meteorological data): The RETS limits on dose or dose commitment to a member of the public 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 quarter; 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 1 OCFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem).4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix E. The data are presented as cumulative joint frequency distributions of the wind direction for the 250' level and wind speed class by atmospheric stability class determined from the temperature difference between the 250' and 30'levels. Data recovery for all measurements on the tower as 99.0% during 2005 (Table 3.4-1).*Nuclear Regulatory Commission, Regulatory Guide 1.109 (Rev. 1)6 146 of 218 APPENDIX E-1 DATA TABLES AND FIGURES E-1.1 147 of 218 Intentionally left blank 148 of 218 Table 1.1-1 Byron Station Unit One 2005 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 1A GASEOUS EFFLUENTS

-SUMMATION OF ALL RELEASES REPORT FOR 2005_____________________

Fission and Activation

1. Total Release 2. Avg. Release Rate Iodine-131

1. Total Release 2. Avg. Release Rate Units QTR 1 QTR 2 QTR 3 QTR 4 YEAR_ _ _ _ _ _ _ ----------------------------------------Gases Ci uCi/sec 4.48E+01 2.43E-01 3.28E-01 1.32E+00 4.67E+01 5.76E+00 3.09E-02 4.13E-02 1.66E-01 1.48E+00 Ci 3.03E-03 2.90E-05 1.29E-05 1.27E-05 3.09E-03 uCi/sec 3.90E-04 3.69E-06 1.62E-06 1.60E-06 9.80E-05 Particulates Half Life 1. Total Release 2. Avg. Release Rate>= 8 days Ci 6.57E-06 0.OOE+00 0.OOE+00 0.OOE+00 6.57E-06 uCi/sec 8.45E-07 0.OOE+00 0.OOE+00 0.OOE+00 2.08E-07 Tritium 1. Total Release 2. Avg. Release Rate Ci 1.94E-01 7.92E-02 7.86E-02 1.45E-01 4.97E-01 uCi/sec 2.50E-02 1.01E-02 9.89E-03 1.82E-02 1.58E-02 Byron Station Unit Two 2005 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 1A GASEOUS EFFLUENTS

-SUMMATION OF ALL RELEASES REPORT FOR 2005_____________________

Fission and Activation

1. Total Release 2. Avg. Release Rate Iodine-131

1. Total Release 2. Avg. Release Rate Units QTR 1 QTR 2 QTR 3 QTR 4 YEAR_ _ _ _ _ _ _ ----------------------------------------Gases Ci uCi/sec 8.08E+00 1.93E-01 2.94E-01 1.23E+00 9.80E+00 1.04E+00 2.45E-02 3.70E-02 1.55E-01 3.11E-01 Ci 4.01E-03 5.51E-05 2.89E-06 1.15E-05 4.08E-03 uCi/sec 5.16E-04 7.01E-06 3.64E-07 1.45E-06 1.30E-04 Particulates Half Life 1. Total Release 2. Avg. Release Rate>= 8 days Ci 8.74E-06 0.OOE+00 0.OOE+00 0.00E+00 8.74E-06 uCi/sec 1.12E-06 0.00E+00 O.OOE+00 0.OOE+00 2.77E-07 Tritium 1. Total Release 2. Avg. Release Rate Ci 6.51E-01 3.26E+00 4.64E-01 9.02E-01 5.28E+00 uCi/sec 8.37E-02 4.15E-01 5.84E-02 1.13E-01 1.67E-01 E-1.2 149 of 218 Table 1.2-1 Byron Station Unit One 2005 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 2A LIQUID EFFLUENTS

-SUMMATION OF ALL RELEASES REPORT FOR 2005 Units Fission and Activation Gases 1. Total Release Ci 2. Avg. Diluted Conc. uCi/ml Tritium 1. Total Release Ci 2. Avg. Diluted Conc. uCi/ml Dissolved and Entrained Gases 1. Total Release Ci 2. Avg. Diluted Conc. uCi/ml Volume of liquid waste liters Volume of dil. water liters QTR 1 QTR 2 QTR 3 QTR 4 YEAR 1.13E-02 4.90E-03 1.27E-03 4.55E-03 2.20E-02 3.58E-09 1.27E-09 3.55E-10 1.65E-09 1.65E-09 4.95E+02 2.21E+02 3.88E+02 1.56E+02 1.26E+03 1.57E-04 5.74E-05 1.08E-04 5.65E-05 9.47E-05 1.65E-02 2.67E-04 2.62E-04 1.00E-03 1.80E-02 5.24E-09 6.94E-11 7.32E-11 3.63E-10 1.35E-09 3.15E+09 0. OOE+00 3.85E+09 0. 00E+00 3.58E+09 0. OOE+00 2. 76E+09 0.00E+00 1. 33E+10 0.OOE+00 Byron Station Unit Two 2005 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 2A LIQUID EFFLUENTS

-SUMMATION OF ALL RELEASES REPORT FOR 2005 Units QTR 1 Fission and Activation Gases 1. Total Release Ci 2. Avg. Diluted Conc. uCi/ml Tritium 1. Total Release Ci 2. Avg. Diluted Conc. uCi/ml Dissolved and Entrained Gases 1. Total Release Ci 2. Avg. Diluted Conc. uCi/ml Volume of liquid waste liters Volume of dil. water liters l. 13E-02 3.58E-09 QTR 2 4.90E-03 1.27E-09 QTR 3________1.27E-03 3.55E-10 QTR 4________4.55E-03 1.65E-09 YEAR________2.20E-02 1. 65E-09 4.95E+02 2.21E+02 3.88E+02 1.56E+02 1.26E+03 1.57E-04 5.74E-05 1.08E-04 5.65E-05 9.47E-05 1.65E-02 2.67E-04 2.62E-04 1.OOE-03 1.80E-02 5.24E-09 6.94E-11 7.32E-11 3.63E-10 1.35E-09 3.15E+09 0. OOE+00 3.85E+09 0.OOE+00 3.58E+09 0.OOE+00 2.76E+09 0.OOE+00 1.33E+10 0.OOE+00 E.1-3 150 of 218 Table 3.1-1 Byron Station Unit One 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT_______________________________________

GASEOUS DOSE

SUMMARY

Report for: 2005 Unit Range -From: 1 To: 1=== I&P DOSE LIMIT ANALYSIS==============================

Annual -Limit______________________________

2005 -Admin. Any Organ 2005 -Admin. Total Body Age Group INFANT_INFANT INFANT Organ________THYROID TBODY Dose (mrem)1. 99E+C 3.05E-C ANNUAL 2005 Limit (mrem)__ --------)0 1.13E+01)3 1.05E+01 Max % of Limit 1. 77E+01 2.91E-02 2005 -T.Spc. Any Organ INFANT THYROID 1.99 Receptor:

5 Composite Crit. Receptor -IP Distance:

0.00 (meters) Compass Point: NA Critical Pathway: Grs/Goat/Milk (GMILK)Major Contributors ( 0% or greater to total)Nuclide Percentage H-3 1.86E-02 CR-51 2.72E-07 CO-58 1.32E-05 I-131 9.95E+01 I-132 2.76E-04 I-133 4.41E-01 I-135 1.10E-03 E+00 1.50E+01 1.33E+01 2005 -T.Spc. Total Body INFANT TBODY 3.05]Receptor:

5 Composite Crit. Receptor -IP Distance:

0.00 (meters) Compass Point: NA Critical Pathway: Grs/Goat/Milk (GMILK)Major Contributors ( 0% or greater to total)Nuclide Percentage H-3 1.21E+01 CR-51 1.80E-04 CO-58 1.01E-02 I-131 8.73E+01 I-132 1.17E-02 I-133 4.96E-01 I-135 1.68E-02 E-03 1.50E+01 2.04E-02 E-1 .4 151 of 218 Table 3.1-1 (continued)

Byron Station Unit One 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT_____________GASEOUS___DOSE___SUMM___RY GASEOUS DOSE

SUMMARY

Report for: 2005 Unit Range -From: 1 To: 1=== NG DOSE LIMIT ANALYSIS===============================

Annual -Limit 2005-______________in.___________Gam__________a__

2005 -Admin. Gamma 2005 -Admin. Beta Dose (mrad)1. 14E-C 8. 62E-C ANNUAL 2005 Limit (mrad))3 7.50E+00)4 1.50E+01 Max % of Limit 1. 52E-02 5.75E-03 2005 -T.Spc. Gamma 1.14E-03 1.OOE+01 1.14E-02 Receptor:

4 Composite Crit. Receptor -NG Distance:

0.00 (meters) Compass Point: NA Nuclide Percentage AR-41 7.25E-01 KR-85 1.03E-01 XE-135 4.72E-02 XE-133M 2.60E-01 KR-88 1.13E-01 XE-131M 8.73E-02 XE-133 9.87E+01 2005 -T.Spc. Beta 8.62E-04 2.OOE+01 4.31E-03 Receptor:

4 Composite Crit. Receptor -NG Distance:

0.00 (meters) Compass Point: NA Nuclide Percentage AR-41 8.32E-02 KR-85 3.80E+00 XE-135 1.97E-02 XE-133M 3.82E-01 KR-88 7.10E-03 XE-131M 2.02E-01 XE-133 9.55E+01 E-1 .5 152 of 218 Table 3.1-1 (continued)

Byron Station Unit Two 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT_______________________________________

GASEOUS DOSE

SUMMARY

Report for: 2005 Unit Range -From: 2 To: 2=== I&P DOSE LIMIT ANALYSIS=========-====================

Annual -Limit______________________________

2005 -Admin. Any Organ 2005 -Admin. Total Body Age Group INFANT_INFANT INFANT Organ________THYROID TBODY Dose (mrem)_______1.99E+C 3. 05E-0 ANNUAL 2005 Limit (mrem)'0 1.13E+01'3 1.05E+01 Max % of Limit 1.77E+01 2. 91E-02 2005 -T.Spc. Any Organ INFANT THYROID 1.99: Receptor:

5 Composite Crit. Receptor -IP Distance:

0.00 (meters) Compass Point: NA Critical Pathway: Grs/Goat/Milk (GMILK)Major Contributors ( 0% or greater to total)Nuclide Percentage H-3 1.86E-02 CR-51 2.72E-07 CO-58 1.32E-05 1-131 9.95E+01 I-132 2.76E-04 I-133 4.41E-01 I-135 1.10E-03 E+00 1.50E+01 1.33E+01 2005 -T.Spc. Total Body INFANT TBODY 3.05E-03 1.50E+01 2.04E-02 Receptor:

5 Composite Crit. Receptor -IP Distance:

0.00 (meters) Compass Point: NA Critical Pathway: Grs/Goat/Milk (GMILK)Major Contributors ( 0% or greater to total)Nuclide Percentage H-3 1.21E+01 CR-51 1.80E-04 CO-58 1.01E-02 I-131 8.73E+01 1-132 1.17E-02 1-133 4.96E-01 1-135 1.68E-02 E-1. 6 153 of 218 Table 3.1-1 (continued)

Byron Station Unit Two 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT_____________-_________________________

GASEOUS DOSE

SUMMARY

Report for: 2005 Unit Range -From: 2 To: 2=== NG DOSE LIMIT ANALYSIS --Annual -Limit 2005-____Ad________in____________Gamma___________

2005 -Admin. Gamma 2005 -Admin. Beta Dose (mrad)1. 14E-C 8 .62E-C ANNUAL 2005 Limit (mrad))3 7.50E+00)4 1.50E+01 Max % of Limit 1. 52E-02 5.75E-03 2005 -T.Spc. Gamma 1.14E-03 1.00E+01 1.14E-02 Receptor:

4 Composite Crit. Receptor -NG Distance:

0.00 (meters) Compass Point: NA Nuclide Percentage AR-41 7.25E-01 KR-85 1.03E-01 XE-135 4.72E-02 XE-133M 2.60E-01 KR-88 1.13E-01 XE-131M 8.73E-02 XE-133 9.87E+01 2005 -T.Spc. Beta 8.62E-04 2.OOE+01 4.31E-03 Receptor:

4 Composite Crit. Receptor -NG Distance:

0.00 (meters) Compass Point: NA Nuclide Percentage

_______AR-41 KR-85 XE-135 XE-133M KR-88 XE-131M XE-133__________

8.32E-02 3.80E+00 1. 97E-02 3.82E-01 7.10E-03 2.02E-01 9.55E+01 E-1 .7 154 of 218 Table 3.2-1 Byron Station Unit One 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT______________LIQUID___DOSE___

SUMMARY

__

LIQUID DOSE

SUMMARY

___________________

Report for: 2005 Unit Range -From: 1 To: 1 Liquid Receptor=== PERIOD DOSE BY ORGAN AND AGE GROUP (mrem) -ANNUAL 2005 =========Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB ADULT 1.26E-03 7.57E-03 8.37E-03 8.48E-03 6.14E-03 1.14E-02 0.OOE+00 7.12E-03 TEEN 1.34E-03 6.12E-03 6.72E-03 6.02E-03 4.67E-03 8.50E-03 0.OOE+00 5.21E-03 CHILD 1.69E-03 6.44E-03 7.41E-03 6.35E-03 5.14E-03 6.87E-03 0.OOE+00 5.40E-03 INFANT 2.54E-06 2.22E-03 2.38E-03 2.22E-03 2.21E-03 2.22E-03 0.OOE+00 2.22E-03=== SITE DOSE LIMIT ANALYSIS Annual -Limit 2005 -Admin. Any Organ 2005 -Admin. Total Body=============================

Age Group ADULT ADULT Organ GILLI TBODY Dose (mrem)1. 14E-C 7.12E-C ANNUAL 2005 Limit (mrem))2 7.50E+00 13 2.25E+00 Max % of Limit 1. 52E-01 3.17E-01 2005 -T.Spc. Any Organ ADULT GILLI Critical Pathway: Fresh Water Fish -Sport (FFSP)Major Contributors ( 0% or greater to total)Nuclide Percentage H-3 5.27E+01 CR-51 7.26E-02 MN-54 2.37E-01 FE-59 4.70E-01 CO-58 2.91E+00 CO-60 1.36E+O0 NB-95 1.98E+01 AG-llOM 7.49E-04 TE-125M 9.10E+00 TE-129 2.78E-02 TE-129M 9.32E+00 TE-132 3.72E+00 I-131 1.56E-02 I-132 4.61E-04 I-133 6.24E-05 CS-134 1.08E-01 CS-136 5.80E-03 CS-137 1.08E-01 LA-140 4.05E-02 CE-144 9.60E-04 PR-144 5.74E-14 1.14E-02 1.OOE+01 1.14E-01 E-1 .8 155 of 218 Table 3.2-1 (continued)

Byron Station Unit One 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT______________LIQUID___DOSE___

SUMMARY

__

LIQUID DOSE

SUMMARY

2005 -T.Spc. Total Body ADULT TBODY Critical Pathway: Fresh Water Fish -Sport (FFSP)Major Contributors ( 0% or greater to total)Nuclide Percentage H-3 8.40E+01 CR-51 4.61E-04 MN-54 2.36E-02 FE-59 8.62E-02 CO-58 5.13E-01 CO-60 2.55E-01 NB-95 2.80E-03 AG-llOM 1.74E-06 TE-125M 4.87E-01 TE-129 1.43E-02 TE-129M 4.67E-01 TE-132 1.18E-01 I-131 5.42E-02 I-132 1.37E-03 I-133 3.38E-05 CS-134 8.08E+00 CS-136 5.86E-02 CS-137 5.82E+00 LA-140 2.33E-07 CE-144 2.43E-07 PR-144 3.23E-08 7.12E-03 3.00E+00 2.37E-01 E-l.9 156 of 218 Table 3.2-1 (continued)

Byron Station Unit Two 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT______________LIQUID___DOSE___

SUMMARY

__

LIQUID DOSE

SUMMARY

___________________

Report for: 2005 Unit Range -From: 2 To: 2 Liquid Receptor=== PERIOD DOSE BY ORGAN AND AGE GROUP (mrem) ANNUAL 2005 =========Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB ADULT 1.26E-03 7.57E-03 8.37E-03 8.48E-03 6.14E-03 1.14E-02 0.OOE+00 7.12E-03 TEEN 1.34E-03 6.12E-03 6.72E-03 6.02E-03 4.67E-03 8.50E-03 0.OOE+00 5.21E-03 CHILD 1.69E-03 6.44E-03 7.41E-03 6.35E-03 5.14E-03 6.87E-03 0.OOE+00 5.40E-03 INFANT 2.54E-06 2.22E-03 2.38E-03 2.22E-03 2.21E-03 2.22E-03 0.OOE+00 2.22E-03=== SITE DOSE LIMIT ANALYSIS=============================

Al Annual -Limit______________________________

2005 -Admin. Any Organ 2005 -Admin. Total Body Age Group ADULT__ADULT ADULT Dose Organ (mrem)GILLI 1.14E-02 TBODY 7.12E-03 NNUAL 2005 Limit (mrem)7.50E+00 2.25E+00 Max % of Limit 1.52E-01 3.17E-01 2005 -T.Spc. Any Organ ADULT GILLI Critical Pathway: Fresh Water Fish -Sport (FFSP)Major Contributors ( 0% or greater to total)Nuclide Percentage H-3 5.27E+01 CR-51 7.26E-02 MN-54 2.37E-01 FE-59 4.70E-01 CO-58 2.91E+00 CO-60 1.36E+00 NB-95 1.98E+01 AG-llOM 7.49E-04 TE-125M 9.10E+00 TE-129 2.78E-02 TE-129M 9.32E+00 TE-132 3.72E+00 I-131 1.56E-02 I-132 4.61E-04 I-133 6.24E-05 CS-134 1.08E-01 CS-136 5.80E-03 CS-137 1.08E-01 LA-140 4.05E-02 CE-144 9.60E-04 PR-144 5.74E-14 1.14E-02 1.OOE+01 1.14E-01 E-1.10 157 of 218 Table 3.2-1 (continued)

Byron Station Unit Two 2005 40CFR190 URANIUM FUEL CYCLE DOSE REPORT______________LIQUID___DOSE___

SUMMARY

__

LIQUID DOSE

SUMMARY

___________________

2005 -T.Spc. Total Body ADULT TBODY Critical Pathway: Fresh Water Fish -Sport (FFSP)Major Contributors (0% or greater to total)Nuclide Percentage H-3 8.40E+01 CR-51 4.61E-04 MN-54 2.36E-02 FE-59 8.62E-02 CO-58 5.13E-01 CO-60 2.55E-01 NB-95 2.80E-03 AG-llOM 1.74E-06 TE-125M 4.87E-01 TE-129 1.43E-02 TE-129M 4.67E-01 TE-132 1.18E-01 I-131 5.42E-02 I-132 1.37E-03 I-133 3.38E-05 CS-134 8.08E+00 CS-136 5.86E-02 CS-137 5.82E+00 LA-140 2.33E-07 CE-144 2.43E-07 PR-144 3.23E-08 7.12E-03 3.OOE+00 2.37E-01 E-1. 11 158 of 218 Table 3.4-1 Byron Station -Unit 1 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 20W5 TYPE OF DOSE GAMNA AIR (mrad)BETA AIR (mrad)WHOLE BODY m(nem)SKIN (mrem)ORGAN (urem)CRITICAL PERSON CRITICAL ORGAN FIRST QUARTER 2.74DE-04( SE)1. ORE-03( SE)1.610E-04( SE)5.33DE-04( SE)7.O1DE-D4( SE)Child Thyroid SECOND QUARTER 5.750E-D7( NW)7 .830E-06(NNW) 2.94DE-Q07(SSE) 4.31DE-D6(WNW)

7. 05DE-06 (NNW)Child Thyroid THIRD QUARTER 1.200E-06(NNW) 1.86DE-05(mNW) 5.440E-07( S )7.640E-06( S )B.600E-D6(NNW)

Child Thyroid FOURTH QUARTER 7.860E-06(ESE) 3.34DE-0S (ESE)2.96DE-06( S )1. 14DE-05 (SSE)4.8rDE-06ESE)

Child Thyroid ANNUAL 2.80SE-044 SE)1.117E-D3( SE)1.646E-04( SE)5.513E-04( SE)7.14DE-04t SE)Child Thyroid 10 CFR 50 APP. I QUARTERLY OBJECTIVE i OF APP. I TYPE OF DOSE GAMiMA AIR (mrad)BETA AIR (mrad)WHOLE BODY (mrem)SEIN (Erem)ORGAN (arem)CRITICAL PERSON CRITICAL ORGAN COMPLIANCE STATUS 10 CFR 50 APP.I YEARLY OBJECTIVE 1D.0 2D.0 5.0 15.0 15.0 5.Q 10.0 2.5 7.5 7.5 0.01 0.01 0.01 0.01 O.01 t OF APP. I 0.00 0.01 0.O0 0.00 0.0D Child Thyroid Child Thyroid Calculation used release data from the following:

unit 1 -Vent E-1.12 159 of 218 Table 3.4-1 (continued)

Byron Station -Unit 2 MAXIMUM DOSES RESULTING FRM AIRBORNE RELEASES 2D05 TYPE OF DOSE FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER ANgG^:L GAhKA AIR (mrad) 4.82DE-05( SE) 6.39DE-07( NW)BETA AIR (urad) 1.990E-04( SE) 6.850E-06(NMW)

WHOLE BODY (arem)5.33DE-05( SE) 4.140E-07(S(E)

SKIN (mram) 1.30DE-04( SE) 4.20OE-06(WNW)

ORGAN (arem) 8.Ol0E-04( SE) 5.390E-05(NNW) 9.010E-07 fNNW)1. 720E-5 (NNW)3.93DE-07t S )77.070E-06( 9 S 1.270E-D5(NNW)

7. 140E-06(ESE) 3.11DE-OSfESE) 2.770E-06( S 1 l.06DE-05S 9E1)1. 650E-05 (ESE)5.44SE-05t SE)2.334E-04( SE)5.664E-05( SE)l.472E-04( SE)B.426E-04f SE)Child Thyroid CRITICAL PERSON CRITICAL ORGAN Child Thyroid Teenager Thyroid Teenager Thyroid Teenager Thyroid COMPLIANCE STATUS 10 CPR 50 APP. I 1D CFR 50 APP.I QC[ARTERLY OBJECTIVE R OF APP. I YEARLY OBJECTIVE

% OF APP. I TYPE oF DOSE UAMMA AIR (Mrad)BETA AIR (grad)WHOLE BODY (rem)SKIN (mrem)ORGAN (xrem)5.0 10.0 2.5 7.5 7.5 0.00 0.00 0.00 0.00 D.01 10.0 20.0 5.0 1 *.0 15.0 0.00 0.0D 0.0D 0.00 0.01 CRITICAL PERSON0 CRITICAL ORGAN Child Thyroid Child Thyroid Calculation used release data from the following:

Unit 2 -Vent Data Recovery (priority parameters) 99.0%E-1.13 160 of 218 APPENDIX F METEOROLOGICAL 161 of 218 162 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Extremely Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3_____0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0o 4-7 8-12 13-18 19-24_ _ _ _ _ ---------------> 24 Total Total 0 1 7 0 2 0 10 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 0 163 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Unstable -250Ft-30Ft Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 0 0 0 0.0 0 0 0 0 0 0 Total 0 4 11 5 3 0 23 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 0 164 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Slightly Unstable -250Ft-30Ft Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ ------------------------------N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 3 2 2 2 0 1 1 0 0 4 14 13 6 5 0 Total 0 15 25 12 1 0 53 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sI Hours of missing stability measurements in a]:ability class: 0 Ll stability classes: 0 165 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Neutral Winds Measured at-250Ft-3OFt Delta-T (F)30 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 7 37 28 10 8 34 14 15 7 18 19 20 5 17 45 18 8 24 27 2 7 17 27 6 7 17 18 16 1 13 12 6 2 11 25 12 1 11 9 6 1 17 14 9 4 11 17 7 8 23 32 30 5 59 40 30 5 70 91 20 12 49 76 10 0 0 0 0 4 0 0 0 0 0 0 5 8 4 0 3 3 5 0 0 0 32 0 86 0 71 0 64 0 85 0 61 0 57 0 58 0 37 1 59 0 31 0 41 0 42 0 96 0 139 0 186 0 147 0 0 1 1260 0 88 428 494 217 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: Hours of missing stability measurements in all stability classes: 0 166 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Slightly Stable Winds Measured at Wind Speed Wind-250Ft-3OFt Delta-T (F)30 Feet (in mph)Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total_ _ _- ------------------------------N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 10 8 3 6 14 7 7 6 4 3 5 7 6 10 8 10 0 114 6 13 7 9 21 15 9 17 18 14 22 12 11 22 24 24 0 244 6 7 6 17 13 12 4 14 14 5 10 16 4 4 9 8 0 149 0 0 1 0 1 1 0 21 6 3 7 6 1 1 1 1 0 50 0 0 22 0 0 28 0 0 17 0 0 32 0 0 49 0 0 35 0 0 20 0 0 58 0 0 42 3 0 28 1 0 45 0 0 41 0 0 22 0 0 37 0 0 42 1 0 44 0 0 0 5 0 562 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 167 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Stable Winds Measured at-250Ft-3OFt Delta-T (F)30 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E 1-3 2 1 0 2 3 4-7 8-12 13-18 19-24 > 24 Total 2 2 1 2 4 2 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 3 1 4 8 ESE SE SSE S 2 11 2 4 8 6 6 14 SSW SW 2 1 5 5 WSW w 3 1 0 2 0 1 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 17 0 11 0 19 0 24 0 0 0 0 0 0 0 0 6 2 5 8 8 4 7 0 8 NW NNW Variable 3 2 0 Total 48 62 23 0 0 0 133 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 0 168 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Extremely Stable Winds Measured at-250Ft-30Ft Delta-T (F)30 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3_____1 1 0 0 0 1 1 1 2 1 0 0 0 5 9 2 0 24 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------0 0 0 0 0 0 0 5 1 0 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 39 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 169 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Extremely Unstable -250Ft-30Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 1 5 2 0 2 10 Hours of calm in this stability class: Hours of missing Hours of missing wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 6 170 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 1 0 1 0 0 0 1 0 0 0 1 1 2 4 3 0 Total 0 3 6 8 3 3 23 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 1 all stability classes: Hours of missing stability measurements in 6 171 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Slightly Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable 0 0 0 0 0 0 0 0 0 0 0 0 7 5 0 1 0_____0 0 0 1 1 0 0 0 0 0 0 1 4 5 1 1 0 0 0 3 0 1 2 0 0 0 0 0 3 1 0 6 2 0 0 0 3 2 2 2 0 1 1 0 0 4 13 15 7 4 0 Total 0 13 14 18 8 1 54 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 6 172 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Neutral -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7_____3 7 3 1 2 3 5 1 1 0 0 2 2 5 1 4 0_____26 22 14 15 12 7 5 9 11 2 4 7 8 24 23 19 0 8-12 13-18 19-24 > 24 38 42 4 6 32 15 14 0 16 17 20 1 17 30 16 0 18 28 5 0 22 15 5 5 10 16 20 1 7 10 6 8 17 15 7 10 14 8 4 3 12 3 13 2 17 18 5 3 21 25 18 2 40 22 26 6 73 53 27 3 57 50 11 2 0 0 0 0 Total_____119 90 71 79 65 57 57 41 61 31 34 52 76 123 180 143 0 Total 40 208 411 367 201 52 1279 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 7 Hours of missing stability measurements in all stability classes: 6 173 of 218 Byron Nuclear Station Period of Record: January -March 2005 Class -Slightly Stable -250Ft-3OFt Winds Measured at 250 Feet Stability Delta-T (F)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 0 5 14 0 3 9 3 5 11 3 6 4 2 14 17 2 11 7 0 2 6 1 1 3 2 1 11 0 5 11 2 2 12 1 4 14 0 7 8 0 4 15 0 4 24 1 4 15 0 0 0 9 12 7 9 13 6 13 4 14 21 12 20 9 8 20 16 0 1 1 30 0 0 24 0 0 26 8 0 30 2 0 48 8 2 36 5 0 26 2 15 26 9 11 48 4 3 44 10 4 42 10 2 51 1 0 25 1 0 28 1 0 49 2 0 38 0 0 0 64 38 571 17 78 181 193 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: all stability cl 5 asses: 6 174 of 218 Byron Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Stable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 8 0 5 0 13 0 5 0 12 0 11 0 16 0 12 0 16 0 19 0 9 0 5 0 5 0 3 0 12 0 3 0 0 0 154 12 29 39 49 25 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 3 all stability classes: Hours of missing stability measurements in 6 175 of 218 Byron Nuclear Station Period of Record: January -Stability Class -Extremely Stable Winds Measured at 250 March 2005-250Ft-30Ft Feet Delta-T (F)Wind Speed (in mph)Wind Direction_________N NNE NE ENE E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable 1-3_____0 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------0 0 1 Total 15 4 12 8 5 0 44 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 6 176 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Extremely Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 3 0 0 0 4 NNE 0 0 3 2 0 0 5 NE 0 0 3 1 0 0 4 ENE 0 1 3 1 0 0 5 E 0 1 14 0 0 0 15 ESE 0 1 5 0 0 0 6 SE 0 1 0 1 0 0 2 SSE 0 0 3 2 0 0 5 S 0 0 2 3 0 0 5 SSW 0 1 6 3 1 0 11 SW 0 2 7 9 0 0 18 WSW 0 0 1 8 0 0 9 W 0 0 5 19 5 0 29 WNW 0 4 4 10 1 0 19 NW 0 1 8 3 0 0 12 NNW 0 0 2 4 0 0 6 Variable 0 0 0 0 0 0 0 Total 0 13 69 66 7 0 155 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: 0 177 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Moderately Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total-__ _ _ _ _ _ _ ------------------------------N 0 2 6 1 0 0 9 NNE 0 1 5 1 0 0 7 NE 0 2 0 3 0 0 5 ENE 0 0 3 0 0 0 3 E 0 2 4 0 0 0 6 ESE 0 2 3 1 0 0 6 SE 0 4 0 2 1 0 7 SSE 0 1 3 4 0 0 8 S 0 0 4 7 0 0 11 SSW 0 6 12 2 1 0 21 SW 0 6 5 0 0 .0 11 WSW 0 2 2 5 0 0 9 W 0 2 2 3 0 0 7 WNW 0 2 8 6 2 0 18 NW 0 2 2 2 0 0 6 NNW 0 1 1 3 0 0 5 Variable 0 0 0 0 0 0 0 Total 0 35 60 40 4 0 139 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: 0 178 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Slightly Unstable Winds Measured at-250Ft-3OFt 30 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE 1-3 0 0 0 0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------3 3 0 1 3 4 7 1 1 0 2 3 2 5 0 1 2 0 0 0 4 0 0 0 0 0 0 0 0 0 0 0 0 0 4 5 2 3 6 6 0 16 SSE 0 S 0 SSW SW WSW 1 0 0 8 3 6 3 2 7 7 9 5 4 7 4 0 0 0 0 19 0 17 0 20 0 0 0 8 2 12 0 16 w WNW NW NNW Variable Total 0 0 0 0 0 2 3 3 11 3 1 0 3 1 0 6 8 2 4 0 1 1 0 0 0 2 o 12 0 23 0 0 0 8 6 0 1 52 62 54 0 171 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: 0 179 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Neutral Winds Measured at-25OFt-3OFt Delta-T (F)30 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 2 8 16 16 1 9 14 11 1 7 12 29 1 7 14 8 0 23 22 0 1 7 11 7 2 14 20 5 2 10 24 11 2 13 27 11 2 28 18 10 2 24 13 10 5 9 10 4 3 11 28 17 3 19 24 15 2 14 14 3 1 13 11 3 0 0 0 0 1 0 3 1 0 0 0 1 0 0 0 0 5 4 0 0 0 15 0 43 0 35 0 52 0 31 0 45 0 26 0 41 0 48 0 53 0 58 0 49 0 28 0 64 0 65 0 33 0 28 0 0 0 699 30 216 278 160 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 0 180 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Slightly Stable Winds Measured at-250Ft-3OFt Delta-T (F)30 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 8 11 3 2 7 10 3 9 7 36 1 17 4 38 5 19 1 31 2 26 5 18 7 14 8 15 8 15 8 9 4 8 0 0 81 278 1 7 7 16 13 11 18 16 29 12 9 23 26 5 5 10 0 208 2 1 2 4 2 2 7 2 2 0 1 2 0 0 0 0 0 27 0 22 0 13 0 26 0 32 0 58 0 32 0 67 0 42 0 63 0 40 0 33 0 46 0 49 0 28 0 22 0 22 0 0 0 595 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: 0 181 of 218 Byron Nuclear Station Period of Record: April -Stability Class -Moderately Stable Winds Measured at 30 June 2005-250Ft-3OFt Delta-T (F)Feet Wind Speed (in mph)Wind Direction_________N 1-3 5____5 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------3 1 0 0 0 9 NNE NE ENE E 1 11 4 0 2 4 0 0 1 2 0 1 0 0 0 0 0 0 0 12 0 0 7 5 3 24 0 29 ESE SE SSE S SSW SW WSW W 8 30 14 5 12 14 0 19 11 2 19 8 4 10 3 7 2 3 4 9 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 52 0 31 0 30 0 30 0 17 0 6 0 13 0 7 WNW NW NNW Variable 7 8 2 0 3 2 1 0 0 0 2 0 0 0 0 0 0 0 0 0 0 10 0 10 0 0 5 0 Total 70 146 56 1 0 0 273 Hours of calm in Hours of missing Hours of missing this stability class: 0 wind measurements in this stabili stability measurements in all sta ty class: 0 bility classes: 0 182 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Extremely Stable Winds Measured at-250Ft-3OFt Delta-T (F)30 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E ESE 1-3_____0 0 0 0 3 1 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------2 0 0 0 1 6 8 0 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 4 9 SE 0 11 SSE 3 14 0 18 0 11 S SSW SW WSW W WNW NW NNW Variable Total 7 2 1 1 3 5 3 3 0 3 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 4 1 1 3 5 3 6 0 33 38 0 78 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 0 183 of 218 Byron Nuclear Station Period of Record: April -Stability Class -Extremely Unstable Winds Measured at 250 June 2005-250Ft-3OFt Delta-T (F)Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE 1-3_____0 0 0 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -----------------------__ _0 0 0 0 3 2 3 2 1 4 0 1 0 0 1 0 0 0 0 0 4 6 4 3 E 0 0 10 ESE 0 SE 0 SSE 0 0 0 0 0 1 5 1 0 0 2 4 4 0 3 5 6 0 0 2 1 1 2 0 0 0 0 9 3 4 6 0 14 S 0 SSW 0 0 11 SW WSW W WNW NW NNW Variable Total 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 3 1 4 7 5 4 0 5 5 6 7 8 12 0 14 0 13 2 26 3 23 0 11 8 1 0 0 4 5 2 0 0 0 6 0 2 52 55 43 5 157 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 47 184 of 218 Byron Nuclear Station Period of Record: April -June 2005 Class -Moderately Unstable -250Ft-3OFt Winds Measured at 250 Feet Stability Delta-T (F)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 3 3 3 1 0 2 0 4 2 1 3 3 1 0 2 5 8 9 6 3 3 1 5 1 2 4 8 1 1 2 1 0 0 0 6 0 7 0 5 0 2 0 7 0 6 1 8 0 6 1 16 0 18.0 12 0 8 0 6 2 19 0 6 0 7 0 0 4 139 0 21 43 48 23 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 1 all stability classes: 47 185 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Slightly Unstable -250Ft-3OFt Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction_________N NNE NE ENE E ESE 1-3 0 0 0 0 0_ _ _4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------2 0 1 0 0 2 2 3 0 3 3 2 1 0 0 1 1 0 1 2 0 0 0 0 0 0 0 0 0 3 6 2 3 6 5 SE SSE S SSW SW WSW 0 0 0 0 0 0 4 11 6 2 4 5 2 3 7 8 0 1 2 6 6 4 4 2 1 2 5 1 0 7 0 18 0 17 0 20 0 17 0 9 0 12 W WNW NW NNW Variable Total 0 0 0 0 0 3 0 0 1 0 1 6 5 12 6 2 0 3 1 0 5 2 3 3 0 32 1 16 0 19 0 12 0 0 7 0 0 34 56 49 1 172 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: 47 186 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Neutral -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 NNE 1 NE 0 ENE 0 E 0 ESE 1 SE 0 SSE 0 S 1 SSW 2 SW 3 WSW 1 W 4 WNW 1 NW 2 NNW 1 Variable 0 6 6 3 9 2 3 6 8 6 26 2 8 5 16 2 13 8 13 20 13 13 12 11 4 8 11 5 17 4 10 4 13 0 0 10 17 11 9 15 6 8 26 19 13 13 8 31 19 17 9 0 10 12 25 5 3 5 9 8 8 8 8 4 11 10 2 3 0 3 37 0 42 5 46 1 29 0 50 0 22 3 41 3 52 0 49 1 57 4 53 0 28 5 70 4 56 1 36 1 31 0 0 Total 19 105 182 231 131 31 699 Hours of calm in this stability class: 0 Hours of missing Hours of missing wind measurements in this stability class: 2 stability measurements in all stability classes: 47 187 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Slightly Stable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction N________N 1-3_____2 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------3 8 8 0 0 21 NNE NE ENE 1 0 0 3 10 9 4 2 3 7 2 2 6 0 25 0 15 0 29 6 14 E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable Total 8 23 22 6 7 0 5 2 8 13 4 22 12 5 20 13 1 16 34 3 11 33 5 10 22 4 7 25 1 9 37 6 3 8 6 0 0 1 1 0 0 62 2 30 6 49 2 42 3 62 0 52 0 47 0 43 0 47 0 29 0 29 0 20 4 13 11 3 13 10 5 0 8 0 6 0 2 90 0 0 16 52 158 73 13 602 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 1 all stability classes: 47 188 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Moderately Stable -250Ft-3OFt Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE 1-3_____0 0 1 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------1 0 4 0 2 3 2 2 7 0 0 0 0 0 3 4 0 15 ENE E ESE SE SSE S SSW SW WSW 0 0 1 1 0 0 0 1 0 3 6 5 13 1 9 1 1 3 0 0 1 1 1 0 8 15 11 5 13 15 0 11 0 28 5 43 3 37 1 16 0 32 0 17 0 20 2 3 10 8 13 10 4 6 1 16 6 1 0 5 4 0 9 W WNW NW NNW Variable Total 0 0 0 0 0 3 1 1 2 0 3 6 8 2 0 6 3 4 5 0 0 0 0 0 0 55 0 12 0 10 0 13 0 0 9 0 4 26 76 109 9 279 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 2 all stability classes: 47 189 of 218 Byron Nuclear Station Period of Record: April -June 2005 Stability Class -Extremely Stable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 0 2 0 0 3 0 0 0 0 1 0 1 0 1 0 0 1 0 0 0 0 4 2 0 2 0 2 0 1 2 7 0 1 4 12 0 6 1 3 0 1 2 1 0 0 0 2 0 0 0 0 0 1 0 0 0 2 1 0 0 0 2 2 0 0 0 0 1 18 20 31 0 0 0 0 0 2 3 2 5 0 0 0 0 0 0 1 0 13 0 2 0 3 0 1 0 2 0 1 0 8 0 7 0 12 0 22 0 10 0 4 0 2 0 0 0 1 0 3 0 5 0 0 0 83 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 47 190 of 218 Byron Nuclear Station Period of Record: July -September 2005 Class -Extremely Unstable -250Ft-3OFt Stability Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE 1-3 0 0 0 0 0 0 0_4-7 8-12 13-18 19-24_ _ _ _ _ ---------------> 24 Total_ _ _ _ _ -----1 1 0 2 2 3 1 3 3 8 0 1 1 2 4 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 9 0 3 3 5 5 7 S SSW SW WSW 0 0 0 0 1 10 3 8 3 2 0 0 0 0 0 0 0 14 0 13 0 19 5 14 7 1 0 8 W WNW NW NNW Variable Total 0 0 0 0 0 7 4 3 4 0 5 8 3 2 0 5 1 0 0 0 0 0 0 0 0 0 0 17 0 13 0 0 0 6 6 0 0 47 74 11 0 132 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 191 of 218 Byron Nuclear Station Period of Record: July -September 2005 Stability Class -Moderately Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S 1-3_____0 0 0 0 0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------4 3 2 3 2 1 2 4 1 8 4 0 0 1 3 1 5 6 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 12 0 0 0 0 0 0 7 2 3 3 4 3 0 10 0 8 SSW SW WSW W WNW 0 0 0 0 0 3 10 5 10 2 6 3 0 3 5 3 0 0 2 0 0 0 0 0 0 0 16 0 15 0 2 0 11 0 8 NW NNW Variable Total 0 14 0 0 8 0 5 2 0 0 0 0 7 0 0 0 0 0 19 0 10 0 0 0 63 63 0 133 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 192 of 218 Byron Nuclear Station Stability Period of Record: July -Class -Slightly Unstable Winds Measured at September 2005-250Ft-3OFt Delta-T (F)30 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E ESE SE 1-3_____0 0 0 0 1 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------9 3 3 2 4 3 4 4 4 2 0 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 13 0 0 0 0 0 0 7 5 2 6 5 5 SSE 0 11 3 S SSW SW WSW w 1 1 0 0 1 10 8 10 1 1 0 0 0 0 0 0 0 0 0 0 0 15 0 13 0 19 0 11 4 5 7 2 1 0 7 0 10 0 11 WNW NW NNW Variable Total 0 5 0 10 6 4 3 0 0 0 6 0 0 0 0 0 2 0 0 0 0 0 0 11 0 14 0 0 9 0 3 88 60 0 153 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 193 of 218 Byron Nuclear Station Period of Record: July -Stability Class -Neutral Winds Measured at September 2005-250Ft-3OFt Delta-T (F)30 Feet Wind Speed (in mph)Wind Direction_________1-3_____4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------N NNE NE ENE 5 23 38 0 0 2 18 14 0 0 66 0 35 0 19 0 22 2 9 8 5 0 0 0 0 4 13 E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 3 19 2 10 3 15 6 2 8 2 27 24 4 22 23 3 26 19 1 24 9 0 0 0 3 2 4 1 3 0 0 4 1 0 1 9 0 28 0 14 0 26 0 56 0 51 0 52 0 35 0 40 0 36 0 40 0 33 0 37 3 14 20 2 22 12 0 28 12 6 19 3 25 4 8 0 212 0 0 0 0 45 314 0 590 Hours of calm in Hours of missing Hours of missing this stability class: 0 wind measurements in this stabili stability measurements in all sta ty class: 0 bility classes: 0 194 of 218 Byron Nuclear Station Period of Record: July -Stability Class -Slightly Stable Winds Measured at September 2005-250Ft-30Ft Delta-T (F)30 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 4 34 15 4 13 11 7 10 10 17 6 27 1 14 2 27 4 7 0 2 9 0 53 0 28 0 21 0 34 0 33 0 17 0 38 0 70 0 71 0 34 0 24 0 22 0 30 7 32 30 8 28 31 6 11 15 8 13 9 9 3 3 2 11 17 NW NNW Variable Total 5 23 8 14 9 24 0 0 105 313 3 3 1 0 139 0 0 0 0 8 0 0 0 0 0 0 31 0 25 0 34 0 0 0 565 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 195 of 218 Byron Nuclear Station Period of Record: July Stability Class -Moderately Stabi Winds Measured at Wind Spee Wind-September 2005.e -250Ft-3OFt Delta-T (F)* 30 Feet Ld (in mph)Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 8 14 2 4 1 2 8 3 11 14 8 25 5 41 3 59 12 48 5 5 9 6 5 7 9 7 12 3 11 3 7 4 0 0 0 0 0 1 0 1 3 8 2 1 2 0 1 0 0 2 0 21 0 22 0 6 0 3 0 12 0 25 0 34 0 49 0 70 0 62 0 11 0 17 0 12 0 17 0 15 0 14 0 13 0 0 0 382 116 245 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 0 196 of 218 Byron Nuclear Station Period of Record: July -Stability Class -Extremely Stable Winds Measured at September 2005-250Ft-3OFt Delta-T (F)30 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E 1-3 4 1 0 1 4 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 1 0 1 5 ESE SE SSE S SSW SW WSW w WNW NW NNW Variable 4 14 4 15 3 13 10 18 0 20 0 20 0 17 0 28 0 10 7 5 4 7 3 15 8 0 3 0 0 1 0 1 0 0 0 0 0 0 5 4 8 3 0 16 0 0 8 0 Total 80 66 4 0 0 0 150 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 197 of 218 Byron Nuclear Station Stability Period of Record: July -September 2005 Class -Extremely Unstable -250Ft-3OFt Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N________N NE ENE E ESE SE SSE S 1-3_____0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 3 1 1 4 2 0 3 2 1 3 4 6 1 6 1 0 1 1 2 1 5 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 6 8 1 3 3 3 8 6 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------0 13 SSW SW WSW W 0 0 0 0 1 3 1 4 8 6 7 8 0 4 2 0 0 2 0 14 0 19 0 7 2 10 0 18 WNW NW NNW Variable Total 0 0 0 0 1 0 0 0 2 3 4 0 8 4 1 0 0 0 0 0 5 0 11 0 0 0 7 5 0 0 15 62 50 0 132 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: 26 198 of 218 Byron Nuclear Station Period of Record: July -September 2005 Stability Class -Moderately Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 5 2 0 0 9 NNE 0 1 6 2 0 0 9 NE 0 1 1 0 0 0 2 ENE 0 1 2 0 0 0 3 E 0 1 2 0 0 0 3 ESE 0 0 2 1 0 0 3 SE 0 2 1 1 0 0 4 SSE 0 1 7 0 1 0 9 S 0 0 7 2 0 0 9 SSW 0 0 8 5 3 0 16 SW 0 1 8 6 0 0 15 WSW 0 1 2 0 0 0 3 W 0 1 7 2 0 0 10 WNW 0 0 4 2 0 0 6 NW 0 4 8 5 0 0 17 NNW 0 8 6 1 0 0 15 Variable 0 0 0 0 0 0 0 Total 0 24 76 29 4 0 133 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: 26 199 of 218 1 Byron Nuclear Station Period of Record: July -September 2005 Stability Class -Slightly Unstable -250Ft-3OFt Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 4-7 8-12 13-18 19-24 > 24 2__ _ _ 6-- --2-- --0-- -------2 6 2 0 0 1 6 2 0 0 2 0 3 0 0 2 1 0 0 0 1 2 2 0 0 3 1 0 0 0 4 1 0 0 0 0 13 0 1 0 3 8 3 1 0 3 10 4 0 0 1 8 2 0 0 2 5 0 0 0 7 4 0 0 0 3 3 4 0 0 2 5 4 0 0 6 7 1 0 0 0 0 0 0 0 Total 10 9 5 3 5 4 5 14 15 18 11 7 11 10 11 14 0 Total 1 42 80 27 2 0 152 Hours of calm in this stability class: Hours of missing wind measurements in this 0 stability class: 1 Hours of missing stability measurements in all stability classes: 26 200 of 218 Byron Nuclear Station Period of Record: July -September 2005 Stability Class -Neutral -250Ft-3OFt Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ ------------------------------N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 13 3 10 2 8 0 10 0 8 2 4 0 8 2 7 2 5 2 11 1 13 0 9 3 14 0 11 0 13 0 10 0 0 23 16 11 23 8 5 0 9 13 8 4 1 9 6 18 26 16 21 26 16 15 9 9 16 11 9 16 6 14 4 18 5 0 0 0 52 0 49 0 26 0 20 0 29 0 11 0 23 0 57 1 47 0 58 0 39 1 40 0 37 0 33 1 35 1 34 0 0 Total 17 154 211 180 24 4 590 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: 26 201 of 218 Byron Nuclear Station Period of Record: July -September 2005 Stability Class -Slightly Stable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction_________1-3_____4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------N 0 NNE NE ENE E ESE SE 1 0 1 0 0 0 6 13 19 2 17 31 4 12 13 7 13 10 6 17 12 0 0 2 3 0 2 5 0 38 0 51 0 31 0 34 0 35 0 11 0 28 0 4 6 3 3 16 SSE S SSW SW WSW W 0 1 0 0 1 1 1 8 20 22 2 10 29 25 7 9 29 15 1 52 3 70 2 62 0 20 0 22 0 26 4 10 2 9 6 9 9 0 1 0 3 13 WNW NW NNW Variable Total 0 0 0 0 5 13 9 8 13 13 3 13 10 0 0 0 0 75 0 27 0 34 0 26 0 0 0 238 0 0 5 64 179 6 567 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 4 all stability classes: 26 202 of 218 Byron Nuclear Station Stability Period of Record: July -September 2005 Class -Moderately Stable -250Ft-3OFt Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N 1-3 0 4-7 8-12 13-18 19-24 > 24 Total------------------------1 6 3 0 0 10 NNE 0 NE 1 3 4 4 2 ENE 0 6 12 8 3 8 3 0 6 0 0 0 0 0 7 0 21 0 16 E 0 0 16 ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 5 9 14 6 9 0 11 16 1 10 15 14 3 10 29 19 1 1 5 2 5 6 1 0 4 25 16 5 6 4 4 7 7 0 9 8 4 9 6 6 0 9 2 0 0 0 0 0 0 36 0 37 0 40 0 61 0 47 1 25 0 21 0 11 0 18 0 19 0 15 0 0 Total 7 44 108 165 75 1 400 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 4 all stability classes: 26 203 of 218 Byron Nuclear Station Period of Record: July -September 2005 Stability Class -Extremely Stable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E 1-3 1 2 1 1 1 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------3 0 6 4 2 3 3 1 5 2 2 0 0 0 0 0 0 0 0 0 0 0 0 9 5 8 0 10 0 5 ESE SE SSE S SSW 1 2 2 1 0 0 5 3 1 2 4 4 4 8 4 13 1 6 4 1 2 0 10 0 25 0 26 0 16 0 18 4 9 4 10 SW WSW W WNW NW NNW Variable 1 0 0 1 0 1 0 1 2 3 6 3 0 0 2 2 0 0 2 9 0 8 3 2 4 2 5 0 6 0 0 0 0 0 0 0 18 0 0 7 5 0 11 0 7 0 15 0 0 Total 15 41 49 70 20 0 195 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 3 all stability classes: 26 204 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Extremely Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction_________N NNE NE ENE E 1-3_____0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------ESE SE SSE S SSW SW WSW w WNW 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 1 0 0 0 0 0 0 3 0 0 0 2 2 0 0 13 NNW Variable Total 0 0 0 0 18 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0 205 of 218 N Byron Nuclear Station Period of Record: October -December2005 Stability Class -Moderately Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------0 0 0 0 0 0 0 0 0 0.0 0 0 0 0 0 0 Total 0 4 20 7 0 0 31 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: 0 206 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Slightly Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 3 0 0 0 3 NNE 0 1 5 1 0 0 7 NE 0 0 2 0 0 0 2 ENE 0 2 0 0 0 0 2 E 0 0 1 0 0 0 1 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 2 2 0 0 4 SSW 0 0 6 4 0 0 10 SW 0 0 4 0 0 0 4 WSW 0 0 1 2 0 0 3 W 0 0 5 1 0 0 6 WNW 0 1 1 2 0 0 4 NW 0 2 2 2 0 0 6 NNW 0 4 2 0 2 0 8 Variable 0 0 0 0 0 0 0 Total 0 10 34 14 2 0 60 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: 0 207 of 218 Byron Nuclear Station Period of Record: October-December2005 Stability Class -Neutral -25OFt-3OFt Delta-T (F)Winds Measured at 30 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total 2 15 45 6 0 0 68 1 6 8 3 0 0 18 0 12 11 0 0 0 23 5 18 34 0 0 0 57 5 26 9 0 0 0 40 2 8 8 4 1 0 23 2 10 29 26 4 0 71 1 10 14 8 1 0 34 1 11 37 14 8 0 71 1 15 29 28 1 0 74 3 24 32 15 1 0 75 3 20 41 24 11 5 104 6 27 65 32 20 7 157 7 33 53 28 6 0 127 9 21 33 10 4 0 77 4 31 49 9 0 0 93 0 0 0 0 0 0 0 Total 52 287 497 207 57 12 1112 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: 0 208 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Slightly Stable Winds Measured at Wind Speed Wind-250Ft-3OFt Delta-T (F)30 Feet (in mph)Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable Total 4 3 2 3 3 1 2 1 3 3 6 12 12 9 12 9 0 17 21 8 14 12 6 12 21 28 10 15 42 42 32 12 18 0 10 8 6 11 0 6 7 32 65 19 14 23 26 14 3 18 0 262 1 0 0 0 0 0 1 0 14 24 8 0 3 2 0 0 0 53 0 32 0 32 0 16 0 28 0 15 0 13 0 22 0 54 0 110 0 60 0 43 0 78 0 83 0 57 0 27 0 45 0 0 0 715 0 es: 0 85 310 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: all stability class 209 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Moderately Stable Winds Measured at Wind Speed Wind-250Ft-3OFt Delta-T (F)30 Feet (in mph)Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 2 4 2 1 2 1 0 0 2 4 2 1 4 9 2 8 2 14 2 5 3 2 5 1 10 12 10 6 8 2 4 4 0 0 0 0 0 2 0 2 2 11 8 0 1 0 0 0 0 0 0 0 6 0 3 0 3 0 2 0 6 0 5 0 15 0 21 0 24 0 7 0 6 0 6 0 22 0 16 0 10 0 8 0 0 0 160 60 74 26 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 0 210 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Extremely Stable Winds Measured at Wind Speed Wind-250Ft-3OFt Delta-T (F)30 Feet (in mph)Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 2 0 0 0 0 0 0 0 1 0 0 0 2 0 6 0 12 0 1 0 1 0 6 0 3 0 2 0 3 0 4 0 0 Total 25 16 2 0 0 0 43 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 0 211 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Extremely Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 0 0 1 14 2 1 18 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 0 212 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Moderately Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable 0 0 0 0 0 0 0 1 0 0 I 0 0 0 0 0 0 0 Total 0 0 15 13 2 1 31 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 0 213 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Slightly Unstable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 2 2 2 0 0 0 0 0 1 10 2 1 3 0 2 0 0 5 8 2 2 1 0 0 0 2 11 5 3 6 3 7 5 0 Total 0 6 21 25 4 4 60 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 0 214 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Neutral -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 6 22 42 7 2 82 NNE 2 2 8 8 3 1 24 NE 0 2 8 7 0 0 17 ENE 1 8 17 20 4 0 50 E 0 6 26 18 2 0 52 ESE 2 8 6 2 0 1 19 SE 1 2 9 16 23 21 72 SSE 1 4 6 10 10 4 35 S 1 5 12 34 8 11 71 SSW 1 5 15 33 18 2 74 SW 2 11 26 16 17 5 77 WSW 0 10 22 39 16 9 96 W 3 14 36 50 23 28 154 WNW 4 18 39 29 17 16 123 NW 7 9 22 19 19 7 83 NNW 1 7 30 42 3 2 85 Variable 0 0 0 0 0 0 0 Total 29 117 304 385 170 109 1114 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 0 215 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Slightly Stable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 1 19 2 0 25 NNE 2 7 12 16 1 0 38 NE 0 3 12 20 1 0 36 ENE 0 3 5 11 7 0 26 E 3 3 5 10 2 0 23 ESE 1 1 2 1 0 1 6 SE 0 2 3 5 6 0 16 SSE 0 0 4 9 13 0 26 S 0 1 4 44 40 4 93 SSW 0 2 12 34 47 15 110 SW 0 2 6 12 12 4 36 WSW 2 3 18 34 4 1 62 W 2 5 35 35 3 0 80 WNW 0 7 27 24 2 0 60 NW 2 6 12 28 1 0 49 NNW 1 7 7 17 0 0 32 Variable 0 0 0 0 0 0 0 Total 14 54 165 319 141 25 718 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 7 Hours of missing stability measurements in all stability classes: 0 216 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Moderately Stable -250Ft-3OFt Delta-T (F)Winds Measured at 250 Feet Wind Direction N NNE NE ENE E ESE SE SSE Wind Speed (in mph)4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------1-3 1 2 2 0 1 1 1 0 1 2 2 2 2 1 1 0 3 2 7 1 0 0 1 0 0 1 4 2 0 1 1 2 0 0 0 0 2 3 1 7 0 0 5 7 0 15 0 0 0 0 0 5 5 6 5 9 S 1 SSW SW WSW W 0 1 0 1 0 1 3 1 2 1 2 12 0 14 13 0 16 0 28 0 11 3 0 4 1 0 2 0 0 4 6 11 0 20 WNW NW NNW Variable Total 1 0 0 0 2 1 2 0 4 6 5 14 0 0 0 0 0 13 0 20 4 0 3 0 0 0 9 0 12 23 37 66 40 0 178 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 9 all stability classes: 0 217 of 218 Byron Nuclear Station Period of Record: October -December2005 Stability Class -Extremely Stable -250Ft-30Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable 7 5 1 2 3 1 2 3 0 1 1 7 3 5 2 4 1 0 Total 8 9 12 21 7 0 57 Hours of calm in this Hours of missing wind stability class: measurements in this 0 stability class: 13 all stability classes: Hours of missing stability measurements in 0 218 of 218

ML061430373

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4.5 MILES

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0.4 MILES

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4.5 MILES

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4.5 MILES

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1.0 miles

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4.5 miles

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1.1. Gaseous

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1.0 EFFLUENTS

3.1.1 Nnhle

3.2 Liquid

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