ML041450388

2003 Annual Radiological Environmental Operating Report

ML041450388
Person / Time
Site:	Byron
Issue date:	05/14/2004
From:	Exelon Generation Co
To:	Office of Nuclear Reactor Regulation
References
Download: ML041450388 (172)

Text

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BYRON STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 2003 MAY 2004

N TABLE OF CONTENTS Page INTRODUCTION...................................................................................................... 1 SUMM A RY .............................................................................................................. ..............................

2 1.0 EFFLUENTS 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 3.1 Gaseous Effluent Pathways .................................. ............................... 3 3.1.1 Noble Gases ................................................................. 3 3.1.1.1 Gamma Dose Rates ................................................................. 3 3.1.1.2 Beta Air and Skin Dose Rates ................................. ................... 4 3.1.2 Radioactive Iodine ................................................................. 4 3.1.2.1 Iodine Concentrations in Air ...................................................... 4 3.1.2.2 Dose to Thyroid . ................................................................ 5 3.1.3 Concentrations of Particulates in Air ....................................................... 5 3.2 Liquid Effluent Pathways ................................................................. 5 3.3 Assessment of Dose to Member of Public ........................................................ 5 4.0 SITE METEOROLOGY ................................................................. 6 5.0 ENVIRONMENTAL MONITORING ................................................................. 6 5.1 Gamma Radiation ................................................................ 6 5.2 Airborne I-131 and Particulate Radioactivity ................................................... 7 5.3 Terrestrial Radioactivity ........................ ........................................ 7 5.4 Aquatic Radioactivity ................................................................. 7 5.5 Milk ................................................................. 8 5.6 Sample Collections ................................................................. 8 5.7 Program Modifications ...................... ........................................... 8 6.0 ANALYTICAL PROCEDURES .............................. ................................... 8 7.0 MILCH ANIMALS AND NEAREST CATTLE CENSUS ....................................... 9 8.0 NEAREST RESIDENCES CENSUS ................................................................. 9 9.0 INTERLABORATORY COMPARISON PROGRAM RESULTS ............ .............. 9 10.0 ERRATA DATA ................................................................. 9 ii

TABLE OF CONTENTS (continued)

Page APPENDIX I - DATA TABLES AND FIGURES............................................................. I-I Station Releases Table 1.1-1 Gaseous Effluents .................................................................. 1-2 Table 1.2-1 Liquid Effluents..................................................................... I-3 Figure 3.1 Figure 3.1-4 Isodose and Concentration Contours ..................................... I-4 Table 3.1 -1 Maximum Doses Resulting from Airborne Releases............. 1-8 Table 3.2-1 Maximum Doses Resulting from Liquid Discharges........................................................................ 1-12 Table 3.4-1 Maximum Doses Resulting from Airborne Releases Based on Concurrent Meteorlogical Data......................................... I-14 Environmental Monitoring Figure 5.0-1 Inner and Outer Ring TLD Locations .................................... I-16 Figure 5.0-2 Onsite Air Sampler Locations ...................................... 1-17 Figure 5.0-3 Offsite Air Sampler Locations ....................................... 1-18 Figure 5.0-4 Ingestion and Waterborne Sample Locations ............ ............ I-19 Table 5.0-1 Radiological Environmental Monitoring Locations ....... ....... I-20 Table 5.0-2 Radiological Environmental Monitoring Program, Sampling Locations and Sample Collection and Analyses................................................................................. I-21 Table 5.0 Table 5.0-6 Radiological Environmental Monitoring Program Quarterly Summary ...................................... I-27 APPENDIX II - METEOROLOGICAL DATA ............................................................ I-1 1

APPENDIX III - 2003 REMP SAMPLE RESULTS ......................................................... III-1 APPENDIX IV - INTERLABORATORY COMPARISON PROGRAM RESULTS ....... IV-1 iii

INTRODUCTION Byron Station, a two-unit PXVR station, is located about two miles east of the Rock River and approximately three miles southwest of Byron in Ogle County, north central Illinois. The reactors are designed to have a capacities of 1280 and 1254 MW gross, respectively. Unit No. I loaded fuel in November 1984 and went on line February 2, 1985. Unit No. 2 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.

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, I-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 I-131 in milk are the critical pathways at this site; however, an environmental monitoring program is conducted which also includes other pathways.

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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 1.22E-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 IOCFR50 Appendix I, 10CFR20 and 40CFR190.

There were no additional operational controls implemented which affected the areas of radiological effluents in 2003.

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.

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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 4.50E+00 curies of fission and activation gases were released with a maximum quarterly release rate of 1.96E-01 yCi/sec, for both units.

A total of 5.13E-06 curies of I-131 were released during the year with a maximum quarterly average release rate of 3.57E-07 pCi/sec.

A total of 8.07E-06 curies were released as airborne particulate matter with a maximum quarterly average release rate of 4.62E-07 pCi/sec. Alpha-emitting radionuclides were below detectable limits.

A total of 3.94E+00 curies of tritium were released with a maximum average quarterly release rate of 1.33E-01 fiCi/sec.

1.2 Liquids Released to Rock River A total of 2.82E+10 liters of radioactive liquid waste (prior to dilution) containing 7.36E-02 curies (excluding tritium, noble gases and alpha) were discharged from the station. These wastes were released at a maximum quarterly average concentration of 3.76E-09 yCi/ml. A total of 2.34E+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 to waste processors. For detail, refer to Byron Station 2003 Effluent Report.

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

3.1.1 Noble Gases 3.1.1.1 Gamma Dose Rates Offsite Gamma air and whole body dose rates are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic 3

composition of the noble gases, and average meteorological data for the period. Isodose contours based on concurrent meteorological data for gamma dose are shown in Figure 3.1-1 for the year. Based on measured effluents and average meteorological data, the maximum total body dose to an individual would be 6.80E-04 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 4.40E-05 mrem (Table 3.4-1). The maximum gamma air dose was 1.98E-04 mrad (Table 3.1-1) based on measured effluents and average meteorological data, and 2.20E-05 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 "infinite" for the 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 and an occupancy factor of 1.0 is used. The skin dose based on concurrent meteorological data was 6.65E-05 mrem (Table 3.4-1).

The air concentrations of radioactive noble gases at the offsite receptor locations are given in Figure 3.1-2. The maximum offsite beta air dose for the year, based on measured effluents and average meteorological data, was 1.36E-04 mrad (Table 3.1-1). The beta air dose based on concurrent meteorological data was 1.36E-04 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, I-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 2003 and previous years indicate that contributions to doses from inhalation of I-131 and I-133 and ingestion of I-133 in milk are negligible.

3.1.2.1 Iodine Concentrations in Air The calculated concentration contours for iodine in air are shown in Figure 3.1-3. Included in these calculations is an iodine cloud depletion factor which accounts for the phenomenon of elemental iodine deposition on the ground. The maximum offsite concentration is estimated to be 2.56E-07 pCi/M3 for the year (Table 3.4-1).

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3.1.2.2 Dose to Thyroid The hypothetical thyroid dose to the maximum exposed individual living near the station via ingestion of milk was calculated. The radionuclide considered was I-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 3.36E-03 mrem during the year (Table 3.1-1 [infant]).

3.1.3 Concentrations of Particulates in Air Concentration contours of radioactive airborne particulates are shown in Figure 3.1-4. The maximum annual offsite concentration is estimated to be 1.52E-01 pCi/m3 (Table 3.4-1).

3.2 Liquid Effluent Pathways The three principal pathways through the aquatic environment for potential doses to man from liquid waste are ingestion of potable water, eating of 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 tract, 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 1.15E-02 mrem (adult) and no organ dose exceeded 2.42E-02 mrem (Table 3.2-1 [adult]).

3.3 Assessment of Dose to Member of Public During the period January to December, 2003, Byron Station did not exceed these limits as shown in Table 3.1-1 and Table 3.2-1 (based on yearly average meteorological data), and as shown in Figure 3.1-1 (based on concurrent meteorological data), and as shown in Table 3.3-1:

• 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 any calendar year).

• The RETS limits on air dose in noble gases released in gaseous effluents to a member of the public from each reactor unit (5 mrad 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 any

• Nuclear Regulatory Commission, Regulatory Guide 1.109 (Rev. 1).

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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 8 days in gaseous effluents released from each reactor unit (7.5 mrem to any organ during any calendar quarter; 15 mrem to any organ during any calendar year).

• The 10CFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem).

4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix II. 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 was 99.7% during 2003 (Table 3.4-1).

5.0 ENVIRONMENTAL MONITORING Table 5.0-1 provides an outline of the Radiological Environmental Monitoring Program (REMP) as required in the Technical Standards. Table 5.0-2 outlines the sampling locations, sample collection frequency and analysis for the samples. Sampling locations are shown in Figures 5.0-1 through 5.0-4. Concentrations of radioactivity in various media are summarized in Tables 5.0-3 through 5.0-6. A detailed listing of all data is presented in Appendix III.

Specific findings for various environmental media are discussed below.

5.1 Gamma Radiation External radiation dose was measured using CaF2 thermoluminescent dosimeters (TLDs). Each location consists of 2 TLD sets. The quarterly average external radiation dose for the year was 24.2 mR at the indicator locations and 19.5 mR at the control locations. TLD results are listed in Section 6.0 of Appendix III and locations are shown in Figure 5.0-1.

Quarterly external radiation dose at indicator air sampling locations averaged 22.5 mR and was similar to that measured in 1985 (14.4 mR), 1986 (14.9 mR), 1987 (15.3 mR),

1988 (15.2 mR), 1989 (14.6 mR), 1990 (14.5 mR), 1991 (14.3 mR), 1992 (13.6 mR),

1993 (14.2 mR), 1994 (14.9 mR), 1995 (14.9 mR), 1996 (15.4 mR), 1997 (13.8 mR),

1998 (14.7 mR), 1999 (13.9 mR), 2000 (14.4 mR), 2001 (19.2 mR) and 2002 (20.4mR). These differences are not statistically significant. A different style of TLD was used starting in 2001. Prior to that timeframe, dose was normalized to the 91-day 6

timeframe. Starting in 2001, dose is "as read," with no correction applied based on TLD period starting before the first day of the quarter.

5.2 Airborne 1-131 and Particulate Radioactivity Locations of the samplers are shown in Figures 5.0-2 and 5.0-3. Airborne 1-131 remained below the LLD of 0.07 pCi/m throughout the year in all samples.

Gross beta concentrations ranged from 0.011 to 0.046 pCi/mr and averaged 0.025 3 3 pCi/m, which is similar to the average concentrations in 1985 (0.026 pCi/m ), 1986 (0.026 pCi/rn ), except for the period from May 12 through June 9 when it was influenced by the nuclear reactor accident at Chernobyl), 1987 (0.027 pCi/r 3), 1988 3 3 3~/ '18 (0.031 pCi/r ), 1989 (0.026 pCi/m ), and similar to 1990 (0.021 pCi/m ), 1991 (0.020 pCi/m ), 1992 (0.022 pCi/m ), 1993 (0.021 pCi/m ), 1994 (0.021 pCi/m ), 1995 (0.022 pCi/m ), 1996 (0.022 pCi/mr), 1997 (0.021 pCi/m ), 1998 (0.022 pCi/Mr3 ), 1999 (0.025 pCi/m 3), 2000 (0.025 pCi/m3 ), 2001 (0.024 pCi/r 3 ) and 2002 (0.026 pCi/m3 ).

All gamma-emitting nuclide activities were below their respective LLD levels. No radioactivity attributable to station operation was detected in any sample.

5.3 Terrestrial Radioactivity Vegetables were collected in the third quarter and analyzed for iodine-131 and gamma-emitting nuclides. All nuclides were below the limits of detection, indicating that there was no measurable amount of radioactivity attributable to the station releases.

Identical results were obtained during the period 1985 through 2002.

5.4 Aquatic Radioactivity Well water was collected quarterly from three offsite wells, shown in Figure 5.0-4, and analyzed for tritium and gamma-emitting nuclides. All results were below the lower limits of detection. The resultswere similar to those obtained in 1985 through 2002.

Surface water samples were collected weekly from two locations noted in Figure 5.0-4. Weekly samples were composited monthly and analyzed for gross beta and gamma. Quarterly composites were analyzed for tritium. Cs-134 and Cs-137 concentrations were below the LLD level of 15 pCi/L and 18 pCi/L, respectively, in all samples. All other gamma-emitters were below their respective LLDs. Gross beta at BY-12 (Oregon Pool of Rock River, Downstream) averaged 3.6 pCi/L, ranging from 2.6-4.6 pCi/L; BY-29 (Byron, Upstream) gross beta averaged 3.5 pCi/L, ranging from 2.6-5.2 pCi/L.

Tritium concentration was below the LLD of 200 pCi/L in all samples collected from Byron, Upstream (BY-29). These levels were similar to those obtained in 1985 through 2002.

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At Oregon Pool of Rock River, Downstream (BY-12) tritium averaged 945 pCi/L, ranging from 192 to 1,943 pCi/L. Elevated levels of tritium downstream from discharge pipe are attributable to the station operation. These levels were similar to those obtained in 1985 through 2002.

Sediment samples were collected tvice and analyzed for gamma-emitters. Cs-134 was below the LLD level of 0.15 pCi/g dry weight in all samples. Cs-137 was below the LLD level of 0.18 pCi/g dry weight in all samples.

Levels of gamma radioactivity in fish were measured and found in all cases to be below the lower limits of detection for the program. The results were identical to those obtained in 1985 through 2002.

5.5 Milk Milk samples were collected monthly from November through April and biweekly from May through October and analyzed for Iodine-1 31 and gamma-emitting nuclides.

Locations are shown in Figure 5.0-4. Iodine-131 activity was below the LLD level of 1.0 pCi/L in all samples.

Cs-134, Cs-137, Ba-140 and La-140 were below the LLD levels of 15, 18, 60 and 15 pCi/L, respectively. The results for 1-131, Cs-134, Cs-137 and Ba/La-140 were identical to those obtained during the period 1985 through 2002, except during several months following the accident at Chernobyl, which occurred on April 26, 1986.

During those months I-131 ranged from 0.9 to 58.6 pCi/L, Cs-134 ranged from 5.8 to 10.7 pCi/L and Cs-137 ranged from 5.3 to 17.8 pCi/L.

5.6 Sample Collections All samples were collected as scheduled except those listed in Listing of Missed Samples, Section 2.0 of Appendix III.

5.7 Program Modifications There were no modifications of the sampling program in 2003.

6.0 ANALYTICAL PROCEDURES Procedures used during the period covered in this report remained unchanged. A summary of the procedures used for analyzing radioactivity in environmental samples is given in Appendix VI of the report for the period January - December 1993.

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7.0 MILCH ANIMALS AND NEAREST CATTLE CENSUS Census of milch animals and nearest cattle were conducted within a 6.2-mile radius of the Station. The survey was conducted by "door-to-door" canvas and by information from Illinois agricultural agents. The census was conducted by W. Mueller on August 25, 2003.

Results of the milch animal and nearest cattle census are presented on pages 40-41, Section 5.0 of Appendix II.

8.0 NEAREST RESIDENCES CENSUS The census of nearest residences within a 6.2-mile radius was conducted by W. Mueller on August 25, 2003.

Results of the nearest residence census are presented on page 42, Section 5.0 of Appendix Hi.

9.0 INTERLABORATORY COMPARISON PROGRAM RESULTS Environmental Incorporated's Interlaboratory Comparison Program Results are presented in Appendix IV.

10.0 ERRATA DATA There is no errata data for 2003.

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BYRON APPENDIX I DATA TABLES AND FIGURES I-1

Table 1.1-1 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 1A GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES Byron Unit One 2003 REPORT FOR 2003 Units QTR 1 QTR 2 QTR 3 QcR 4 YEAR Fission and Activation Gases

1. Total Release Ci 3.13E-01 1.29E-01 1.56E+00 4.92E-01 2.49E+00

2. Avg. Release Rate uCi/sec 4.03E-02 1.63E-02 1.96E-01 6.18E 7.90E-02 Iodine-131

1. Total Release Ci 0.00E+00 0.OOE+00 0.00E+00 2.29E-06 2.29E-06

2. Avg. Release Rate uCi/sec 0.OOE+00 0.00E+00 0.00E+00 2.88E-07 7.26E-08 Particulates Half Life >m 5 days

1. Total Release Ci 0.00E+00 3.63E-06 1.67E-06 2.71E-07 5.57E-06

2. Avg. Release Rate uci/sec 0.00E+00 4.62E-07 2.10E-07 3.41E-08 1.77E-07 Tritium

1. Total Release Ci 1.04E+00 7.37E-01 7.47E-02 1.20E-01 1.97E+00

2. Avg. Release Rate uCi/sec 1.33E-01 9.38E-02 9.40E-03 1.52E-02 6.24E-02 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 1A GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES Unit Two 2003 REPORT FOR 2003 Units QTR 1 QTR 2 QTR 3 QTR 4 YEAR Fission and Activation cases

1. Total Release Ci 1.47E-01 1.23E-01 1.55E+00 1.94E-01 2.01E+00

2. Avg. Release Rate uCi/sec 1.88E-02 1.57E-02 1.955-01 1.15E-02 6.05E-02 Iodine-131

1. Total Release Ci 0.00E+00 0.00E+00 0.00E+00 2.84E-06 2.84E-06

2. Avg. Release Rate uCi/sec 0.00E+00 0.00E+00 0.OOE+00 3.57E-07 9.01E-08 Particulates Half Life >- 8 days

1. Total Release Ci 4.76E-08 8.90E-07 1.56E-06 0.OOE+00 2.50E-06

2. Avg. Release Rate uCi/sec 6.12E-09 1.13E-07 1.96E-07 0.00E+00 7.92E-08 Tritium

1. Total Release Ci 4.97E-01 4.88E-01 2.70E-01 7.12E-01 1.97E+00

2. Avg. Release Rate uCi/sec 6.39E-02 6.20E-02 3.40E-02 8.96E-02 6.24E-02 1-2

Table 1.2-1 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 2A LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES Byron Unit One 2003 REPORT FOR 2003 Units QTR 1 QTR 2 QTR 3 QTR 4 YEAR Fission and Activation Gases

1. Total Release Ci 2.86E-03 l.OOE-02 1.12E-02 1.27E-02 3.68E-02

2. Avg. Diluted Conc. uCi/ml 8.97E-10 2.83E-09 2.84E-09 3.76E-09 2.62E-09 Tritium

1. Total Release Ci 3.44E+02 2.50E+02 3.84E+02 1.88E+02 1.17E+03

2. Avg. Diluted Conc. uCi/ml 1.08E-04 7.06E-05 9.68E-05 5.57E-05 8.29E-05 Dissolved and Entrained Gases

1. Total Release Ci 6.42E-04 2.02E-05 2.29E-03 3.03E-03 5.98E-03

2. Avg. Diluted Conc. uCi/ml 2.02E-10 5.69B-12 5.79E-10 8.98E-10 4.25E-10 Gross Alpha Radioactivity

1. Total Release Ci O.OOE+00 O.OOE+00 0.00+00 O.OOE+00 O.OOE+00 Volume of liquid waste liters 3.18E+09 3.55E+09 3.96E+09 3.37E+09 1.41E+10 Volume of dil. water liters O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 EFFLUENT AND WASTE DISPOSAL REPORT TABLE 2A LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES Byron Unit Two 2003 REPORT FOR 2003 Units QTR I QTR 2 QTR 3 QTR 4 YEAR Fission and Activation Gases

1. Total Release Ci 2.86B-03 1.00E-02 1.12E-02 1.27E-02 3.68E-02

2. Avg. Diluted Conc. uCi/ml 8.97E-10 2.83E-09 2.E4E-09 3.76E-09 2.62E-09 Tritium

1. Total Release Ci 3.44E+02 2.50E+02 3.84E+02 1.88E+02 1.17E+03

2. Avg. Diluted Conc. uCi/ml 1.08E-04 7.06E-05 9.68E-05 s.57E-05 8.29E-05 Dissolved and Entrained Gases

1. Total Release Ci 6.42E-04 2.02E-05 2.29E-03 3.03E-03 5.98E-03

2. Avg. Diluted Conc. uCi/ml 2.02E-10 5.69E-12 5.79E-10 8.98E-10 4.25E-10 Gross Alpha Radioactivi ty

1. Total Release ci 0.00E+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 Volume of liquid waste liters 3.18E+09 3.55E+09 3.96E+09 3.37E+09 1.41E+10 Volume of dil. water liters O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 1-3

Figure 3.1-1 Estimated Cumulative Gamma Dose (in mrad) from the Byron Station for the period January-December 2003 So lsopleth Labels Small figure - mnultiply by 10' Large figure - multiply by 10' ml 0so1

° 6 ~~10 1 Om 14

Figure 3.1-2 Estimated Total Concentrations (in pCVm3) of Noble Gases from the Byron Station for the period January-December 2003 Isopleth Labegs Small figure - multiply by 104 Large figure - multiply by 104 ml 0 5I 10 20 ml a *-- ..

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Figure 3.1-3 Estimated Total Concentrations (in pCIm3) of lodines froin the Byron Station for the period January-December 2003

-isopleth Labels Small figure - multiply by 104 Large figure - multiply by 1 '°

/ P c0lnic_ 5

/~to GSO r.4 O 5 10 J5 20 1-6

Figure 3.1-4 Estimated Total Concentrations (in pCVm3) of Particulates from the Byron Statlon for the period January-December 2003 Z Isopleth labur Small figure - multiply by 10D Large figure - multiply by 104_

"I

/ / ° eeetulec ROCKFO PalP 0 5

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• Table 3.1-1 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Un______One___2003__

Unit One 2003 Report for: 2003 Unit Range - From: I To: 1 rn- I&P DOSE LIMIT ANALYSIS "-atunrr..nni.iiin---iui---nn ANNUAL 2003 ="mm-..

Age Dose Limit Max % of Annual - Limit Group Organ (mrem) (wrem) Limit 2003 - Admin. Any Organ INFANT THYROID 1.68E-03 1.13E+01 1.SOE-02 2003 - Admin. Total Body CHILD TBODY 3.40B-04 1.05E+01 3.24E-03 2003 - T.Spc. Any Organ INFANT THYROID 1.68E-03 1.50E+01 1.12E-02 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway: Ors/Goat/Milk (OMILK)

Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 1.50E+01 Co-5s 7.69E-03 CO-60 7.93E-01 1-131 8.42E+01 2003 - T.Spc. Total Body CHILD TBC0DY 3.401E-04 1.50E+01 2.27E-03 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compas B Point: NA Critical Pathway: Vegetation (VEG)

Major Contributors ( 0% or greater to total)

Nuclide Percentage X-3 9.55s+01 Co-58 6.70E-02 CO-60 4.16E+00 1-131 3.14E-01 1-8

Table 3.1-1 (continued) 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Unit One 2003 Report for: 2003 Unit Range - From: 1 To: 1

--- NO DOSE LIMIT ANALYSIS mwuM umuinu m---cuinwmmum ANNUAL 2003 m====am==

Dose Limit Max % of Annual - Limit (mrad) (mrad) Limit 2003 - Admin. Gamma 9.8BE-05 7.50E+00 1.32E-03 2003 - Admin. Beta 6.82E-05 1.50R+01 4.SSE-04 2003 - T.Spc. Gamma 9.88E-05 1.00+01 9.88E-04 Receptor: 4 Composite Crit. Receptor - NG Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage AR-41 6.95B+00 KR-85 1.53B-02 KR-85M 4.52E-02 XE-135 1.22B-01 XE-133M 1.07E-02 KR-s8 6.70B-03 XE-131M 4.05E-02 X8-133 9.28E+01 2003 - T.Spc. Beta 6.82E-05 2.00E+01 3.41E-04 Receptor: 4 Composite Crit. Receptor - NO Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage AR-41 8.73E-01 KR-85 6.18E-01 KR-85M 2.58E-02 XE-135 5.55E-02 XE-133M 1.72E-02 KR-8s 4.60E-04 XE-131M 1.03E-01 XE-133 9.83E+01 1-9

Table 3.1-1 (continued) 4OCFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Unit Two 2003 Report for: 2003 Unit Range - From: 2 To: 2

-- I&P DOSE LIMIT ANALYSIS =a, mum uuuuu="uuuuuuuminu ANNUAL 2003 WWW- u"M Age Dose Limit Max " of Annual - Limit Group Organ (mrem) (mrem) Limit 2003 - Admin. Any Organ INFANT THYROID 1.68E-03 1.13E+01 1.50E-02 2003 - Admin. Total Body CHILD TBODY 3.40E-04 1.05E+01 3.24E-03 2003 - T.Spc. Any Organ INFANT HYROID l.68E-03 1.50E+01 1.12B-02 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compass Point: NA Critical Pathway: Gre/Goat/Milk (GMILK)

Major contributors ( 0% or greater to total)

Nuclide Percentage H-3 1.50E+01 Co-se 7.69E-03 CO-60 7.93E-01

1-131 8.42E+01 2003 - T.Spc. Total Body CHILD TBCDY 3.401 3-04 1.50E+01 2.27E-03 Receptor: 5 Composite Crit. Receptor - IP Distance: 0.00 (meters) Compas s Point: NA Critical Pathway: Vegetation (VEG)

Major Contributors ( 0% or greater to total)

Nuclide Percentage H-3 9.55E+01 Co-se 6.70E-02 CO-60 4.16E+00 1-131 3.14E-01 1-10

Table 3.1-1 (continued) 40CFR190 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSE

SUMMARY

Unit__________2003._

Unit Two 2003 Report for: 2003 Unit Range - From: 2 To: 2

=m NG DOSE LIMIT ANALYSIS nu-w- -m-u=mmmm====u=wuumm= ANNUAL 2003 m===mum

Dose Limit Max

• of Annual - Limit (mrad) (mrad) Limit 2003 - Admin. Gamma 9.88E-05 7.SOE+00 1.32E-03 2003 - Admin. Beta 6.82E-0S 1.50E+01 4.55E-04 2003 - T.Spc. Gamma 9.88E-05 1.00E+01 9.88E-04 Receptor: 4 Composite Crit. Receptor - NG Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage AR-41 6.95E+00 KR-85 1.53E-02 KR-85M 4.52E-02 XB-135 1.22E-01 XE-133M 1.07E-02 XR-88 6.70E-03 XE-131M 4.05E-02 XE-133 9.28E+01 2003 - T.Spc. Beta 6.82E-05 2.00E+01 3.41E-04 Receptor: 4 Composite Crit. Receptor - NG Distance: 0.00 (meters) Compass Point: NA Nuclide Percentage AR-41 8.73E-01 XR-85 6.18E-01 KR-85M 2.58E-02 XE-135 5.SSE-02 XE-133M 1.725-02 XR-88 4.60E-04 XE-131M 1.03B-01 XE-133 9.83E+01 1-11

Table 3.2-1 40CFR190 URANIUM FUEL CYCLE DOSE REPORT LIQUID DOSE

SUMMARY

Uni_.___One_._2003_

Unit One 2003 Report for: 2003 Unit Range - From: 1 To: 1 Liquid Receptor

r- PERIOD DOSE BY ORGAN AND AGE GROUP (mrem) --- =ww=-.mua ANNUAL 2003 wwww-==

Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB ADULT 1.31E-03 6.02E-03 5.90E-03 1.08E-02 5.50E-03 1.21E-02 0.OOE+00 5.75E-03 TEEN 1.43E-03 4.69E-03 4.53E-03 4.17E-03 4.13E-03 9.26E-03 0.00E+00 4.39E-03 CHILD 1.83E-03 5.13E-03 S.12E-03 4.63E-03 4.60E-03 6.68E-03 O.OOE+00 4.92E-03 INFANT 4.50E-06 2.04E-03 2.04E-03 2.OAE-03 2.04E-03 2.04E-03 0.OOE+00 2.04E-03

=mm SITE DOSE LIMIT ANALYSIS srnmmumuum=auD-usm-nu-mrnue ANNUAL 2003 amumuwumo Age Dose Limit Max % of Annual - Limit Group Organ (mrem) (mrem) Limit 2003 - Admin. Any Organ ADULT GILLI 1.21E-02 7.50E+00 1.61E-01 2003 - Admin. Total Body ADULT TBODY 5.75E-03 2.25E+00 2.56E-01 2003 - T.Spc. Any Organ ADULT GILLI 1.21E-02 1.00E+01 1.21E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( .0% or greater to total)

Nuclide Percentage H-3 4.56E+01 CR-51 4.91E-02 MN-54 2.32E-01 FE-S9 2.47E-01 CO-s5 2.90E+00 CO-60 1.885+D0 NB-95 4.69E+00 AG-110M 1.86E-03 TE-125M 4.31E+01 TE-132 1.38E+00 1-132 8.50E-05 2003 - T.Spc. Total Body ADULT TBODY 5.75E-03 3.00E+00 l.92E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 01 or greater to total)

Nuclide Percentage H-3 9.57E+01 CR-51 4.1OE-04 MN-54 3.03E-02 FE-59 5.95E-02 CO-58 6.74E-01 CO-60 4.63E-01 NB-95 8.72E-04 1-12

Table 3.2-1 (continued) 40CFR190 URANIUM FUEL CYCLE DOSE REPORT LIQUID DOSE

SUMMARY

Unit____Two___2003_

Unit Two 2003 Report for: 2003 Unit Range - From: 2 To: 2 Liquid Receptor mum PERIOD DOSE BY ORGAN AND AGE GROUP (mrem) *=am--awiww ANNUAL 2003 =inmCmuuu Agegrp Bone Liver Thyroid Kidney Lung GI-LLI Skin TB ADULT 1.31E-03 6.02E-03 5.90E-03 1.08E-02 5.SOE-03 1.21E-02 0.00E+00 5.75E-03 TEEN 1.43E-03 4.69E-03 4.53E-03 4.17E-03 4.13E-03 9.26E-03 O.OOE+00 4.39E-03 CHILD 1.83E-03 5.13E-03 5.12E-03 4.63E-03 4.60E-03 6.6BE-03 0.00E+00 4.92E-03 INFANT 4.50E-06 2.04E-03 2.04E-03 2.04E-03 2.04E-03 2.04E-03 0.OOE+00 2.04E-03 man SITE DOSE LIMIT ANALYSIS mu,-i.,mam.-m.m.umu-=mwmmmuu ANNUAL 2003 -- mum m ==m Age Dose Limit Max

• of Annual - Limit Group Organ (mrem) (mrem) Limit 2003 - Admin. Any Organ ADULT GILLI 1.21E-02 7.50E+00 1.61B-01 2003 - Admin. Total Body ADULT TBODY 5.75E-03 2.25E+00 2.56E-01 2003 - T.Spc. Any Organ ADULT GILLI 1.21E-02 1.OOE+0l 1.21E-01 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 01 or greater to total)

Nuclide Percentage H-3 4.56E+01 CR-51 4.91E-02 MN-54 2.32E-01 FE-59 2.47E-01 Co-58 2.90E+00 CO-60 1.88E+00 NB-95 4.69E+00 AG-llOM 1.86E-03 TE-225M 4.31E+01 TE-2132 1.38E+00 1-132 8.50E-05 2003 - T.Spc. Total Body ADULT TEODY 5.75E-03 3.OOE+00 l.92E-O1 Critical Pathway: Fresh Water Fish - Sport (FFSP)

Major Contributors ( 0t or greater to total)

Nuclide Percentage H-3 9.57E+01 CR-51 4.10E-04 MN-54 3.03E-02 FE-59 5.95E-02 CO-58 6.74E-01 CO-60 4.63E-01 NB-95 B.72E-04 1-13

Table 3.4-1 Byron Station - Unit I MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 2003 TYPE OF DOSE FIRST QUARTER SECOND QUARTER THIRD tUARTER FOWRTH QUARTER AtNUAL GAMMIAAIR (mrad) 2.150E-06(ESE) 1.020E-06( S ) 8.260E-06(NN') 2.750E-06(ESE) 1.222E-05(ESE)

BETA AIR (mrad) 6.260E-06(ESE) 3.120E-06( W ) 5.20E-05(NIW) 1.370E-OSNNW) 7.388E-05(NNW)

BODY (mrem)

MHOLE 1.040E-06( SE) 3.CSOE-05(SSW) 3.220E-06( S 1 1.310E.06( SE) 3.352E:OS(SSW)

SKIN (mred) 3.220E-06( SE) 3.670E.05(SSW) 1.230E-05( S ) 5.ISOE-06( SE) 4.592E-OSCSSW)

ORGAN (mrem) 1.660E-O5(ESE) 1.090E-05C R ) 1.570E-06(NIM) 2.460E-06(ESE) 2.469E-OS(ESE)

CRITICAL PERSOWz Teenager Teenager Teenager Teenager Teenager CRITICAL ORGAN Liver Lung Lung Thyroid Thyroid COMPLIANCE STATUS 10 CFR 50 APP. I 10 CFR 50 APP.I TYPE OF DOSE QUARTERLY OBJECTIVE I OF APP. I YEARLY OBJECTIVE S OF APP. I GAMMA AIR (mrad) 5.0 0.00 10.0 0.00 BETA AIR (mrad) 10.0 0.00 20.0 0.00 UFOLE BODY (mrem) 2.5 0.00 5.0 0.00 SKIN (rrem) 7.5 0.00 15.0 0.00 ORGAN (mrem) 7.5 0.00 15.0 0.00 CRITICAL PERSON Teenager Teenager CRITICAL ORGAN Liver Thyroid Calculation used release data from the following:

'Unit I - Vent 1-14

Table 3.4-1 (continued)

Byron Statfon -Unit 2 MAXIMt!I DOSES RESULTING FROM AIRBORNE RELEASES 2003 TYPE OF DOSE FIRST QUARTER SECONO QUARTER THIRD QUARTER FOURTH QUARTER ANNUAL GAMMA AIR (mrad) 8.74DE-07(ESE) 9.1IOE-07( S ) 8 .DOSE-06(NNW) 1.020E'06(ESE) 9.757E-06(NNW)

BETA AIR (mrad) 3.810E-06(ESE) 3.CbOE.06( W) S.190E-CS(ANW) 6.520E.06(NNW)

M8OLEBOOY (mrem) 8.79GE-07( SE) 7. BOOE:06(SSW) 3.120E-06( S ) 4.79CE-07C SE) 1.050E-OSCSSW)

SKIN (mrem) 1.9fOE-06( SE) 9.890E106(SSW) 1.20CE*05(SSE) 2.0SOE-06( SE) 2.06%E-M5SSE)

ORGAN (mrem) 7 .920E-06(ESE) 7.060E-06( U 3 5.650E*06(NNW) 1.2S0E-OS(ESE) 2.916E-OSCNNW)

CRITICAL PERSON Teenager Teenager Teenager Teenager Teenager CRITICAL ORGAN Liver Lung Lung Thyroid Thyroid COMPLIANCE STATUS 10 CFR 60 APP. I 10 CFR SO APP.1 TYPE OF DOSE QUARTERLY CiJECTIVE Z OF APP. I YEARLY OBJECTIVE S OF APP. I GAMMA AIR (mrad) 5.0 0.00 10.0 0.00 BETA AIR (Wrad) 10.0 0.00 20.0 d.00 WHOLE BOOY (erem) 2.5 0.00 5.0 0.00 SkIN (mrem) 7.5 0.00 15.0 0.00 ORGAN (meem) 7.6 0.00 15.0 0.00 CRITICAL PERSON Teenager Teenager CRITICAL ORGAN Thyroid Thyroid Calculation used release data from the following:

Unit 2 -Vent Maximum Offsite Values (pCi/m3)

Iodine 2.56E-07 Particulate Matter 1.52E-01 Data Recovery 99.7%

(priority parameters) 1-15

Figure 5.0-1 I

I BYRON STATION h

• TLD Lotlon 4, IM'ER AND OUTER RING TLD LOCATIONS 1-16

Figure502 do.

W-4 E-III Byron Station 0 112 1 IOnsite Air Sampler Locations I 4 , ,

0 1/2 I &ULE BY-21 Byron Nearsite North BY-22 Byron Nearsite East Southeast UMME--, BY-23 Byron Nearsite South BY-24 Bvron Nearsite Southwest

• AIr Sampling Lnatlon 1-17

Figure 5.0-3 a 1 2 3 4 BULES a

K a *a A*1 '

I ICU fimmmmumme --------- i QUW

• Air Sampling Location I Byron Station K Byron Station l Offsite Air Sampling Locations y-01 Byron BY-4 Paynes Point Y-06 Oregon Y-08 Leaf River 1-18

Figure 5.04 a I a 3 4 R UILES Q S 10KUS

4. Fish I Byron Station_

MAk Ingestion and Waterbome Exposure Pathway Sadvment Samnple Locations 0 Water PY-12 Oregon Pool of Rock River, Downstream Byron Staton Y-14-1 3200 N. German Church Road Y-18 McCoyFamistead Y-20 K. Reeverts Dairy Farm Y-26 1 Dennis Herbert Y-29 ByTon, Upstream 1-19 BY-30 Don Roos Dairy BiY-31 Byron, Discharge

~BY-32 Ron Wolford Well

~Y-34 Rock; River, Dow nstream

TABLE 5.0-1 4-.

Byron Radiological to o Environmental Monitoring 0c 0 d 0 Locations BY-01 Byron BY-04 Paynes Point BY-06 Oregon BY-08 Leaf River BY-12 Oregon Pool of Rock River, Downstream BY-14-1 3200 German Church Road BY-18 McCoy Farmstead BY-Quad 1 D. White BY-Quad 2 3485 German Church Road BY-Quad 3 1417 Brick Road BY-Quad 4 D.L. Hardisty BY-Control Walt Mueller BY-20 K. Reeverts Dairy Farm BY-21 Byron Near Site N BY-22 Byron Near Site ESE BY-23 Byron Near Site S BY-24 Byron Near Site SW BY-26-1 Dennis Herbert BY-29 Byron, Upstream BY-30 Don Roos Dairy BY-31 Byron, Discharge BY-32 Ron Wolford BY-34 Rock River Downstream CENSUS Dairy Residence Cattle I-20

TABLE 5.0-2 BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

1. AIR SAMPLERS Distance Site Code Location (miles) Direction Sector BY-01 Byron 3.0 N A BY-04 Paynes Point 5.0 SE G BY-06 Oregon 4.7 SSW K BY-08 (C) Leaf River 6.8 WNW P BY-21 Byron Nearsite North 0.3 N A BY-22 Byron Nearsite East-Southeast 0.4 ESE F BY-23 Byron Nearsite South 0.6 S J BY-24 Byron Nearsite Southwest 0.6 SW L

2. TLDs

a. Same as No. 1.

b. Special TLD Locations Distance Site Code (miles) Direction Sector Inner Ring BY-101-1,2 0.3 N A BY-102-1 0.9 NNE B BY-102-2 1.0 NNE B BY-103-1,2 1.7 NE C BY-104-1,2 1.5 ENE D BY-105-1,2 1.3 E E BY-106-1,2 1.4 ESE F BY-107-1,2 1.4 SE G BY-108-1 0.7 SSE H BY-108-2 0.6 SSE H BY-109-1,2 0.6 S 3 BY-1 10-1,2 0.6 SSW K BY-111-3 0.7 SW L BY-111-4 0.8 SW L BY-1 12-3,4 0.8 WSW M BY-113-1,2 0.7 W N BY-1 14-1,2 0.8 WNW P BY-1 15-1,2 1.0 NW Q BY-116-1,2 1.4 NNW R Control (background) locations are denoted by a "C" after site code. All other locations are indicators.

I-21

TABLE 5.0-2 (continued)

BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

2. TLDs

b. Special TLD Locations (continued)

Distance Site Code (miles) Direction Sector Outer Ring BY-201-3 4.5 N A BY-201-4 4.4 N A BY-202-1 4.3 NNE B BY-202-2 4.8 NNE B BY-203-1 4.8 NE C BY-203-2 4.7 NE C BY-204-1 4.2 ENE D BY-204-2 4.1 ENE D BY-205-1,2 3.8 E E BY-206-1 4.1 ESE F BY-206-2 4.4 ESE F BY-207-1 4.2 SE G BY-207-2 3.6 SE G BY-208-1 4.0 SSE H BY-208-2 3.7 SSE H BY-209-1,4 3.7 S J BY-210-3,4 3.9 SSW K BY-211-1,4 4.9 SW L BY-212-1,4 4.7 WSW M BY-213-1 4.7 W N BY-213-4 4.6 NV N BY-214-1 4.6 WNW P BY-214-4 4.9 WNW P BY-215-1 5.3 NW Q BY-215-4 5.2 NW Q BY-216-1 4.6 NNW R BY-216-2 4.8 NNW R

3. MILK Distance Site Code Location (miles) Direction Sector BY-20 K. Reeverts Dairy Farm 2.0 NE C BY-26-1(C) Dennis Herbert 12.0 N A BY-30 Don Roos Dairy 5.3 SE G aC Control (background) locations are denoted by a "C" after site code. All other locations are indicators.

I-22

TABLE 5.0-2 (continued)

BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

4. VEGETABLES Distance Site Code Location (miles) Direction Sector BY-Quad I D. White 3.0 N A BY-Quad 2 3485 Gernan Church Road 0.6 SSE H BY-Quad 3 1417 Brick Road 4.0 S i BY-Quad 4 D.L. Hardisty 2.5 NNW R BY-Control (C) Walt Mueller 15.6 N A

5. GROUND/WELL WATER Distance Site Code Location (miles) Direction Sector BY-14-1 3200 North German Church Road 1.0 SSE H BY-18 McCoy Farmstead 0.7 SW L BY-32 Ron Wolford Well 1.8 W N

6. SURFACE WATER Distance Site Code Location (miles) Direction Sector BY-12 Oregon Pool of Rock River, Downstream 4.5 SSW K BY-29 (C) Byron, Upstream 3.0 N A

7. FISH Distance Site Code Location (miles) Direction Sector BY-29 (C) Byron, Upstream 3.0 N A BY-31 Byron, Discharge 2.2 P

8. SEDIMENTS Distance Site Code Location (miles) Direction Sector BY-12 Oregon Pool of Rock River, Downstream 4.5 SSW K BY-34 Rock River, Downstream 0.6 W N a Control (background) locations are denoted by a "C" after site code. All other locations are indicators.

I-23

Table 5.0-3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Byron Nuclear Power Station Docket No. 50-454. 50.455 Location of Facility Ogle. Illinois Reporting Period I st Ouarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean _ Range Meana Results Range . Range Air Gross 60 0.01 0.026 (48/48) BY-21b, Byron 0.028 (12/12) 0.027 (12/12) 0 Particulates Beta (0.011.0.042) Nearsite North (0.015-0.042) (0.0164.0035)

(pCim 3) 0.3 mi. N. Sector A (C Gamma Spec. S Cs-134 0.05 <LLD . <LLD 0 Cs-137 0.06 <LLD . <LLD 0 Other Gammas 0.01-0.04 <LLD . . <LLD 0 Airborne Iodine 3

(pCi/rm ) 1-131 30 0.07 <LLD <LLD 0 Milk 1-131 9 5 <LLD <LLD 0 (pCi/L)

Gamma Spec. 9 Cs-134 15 <LUD - <LLD 0 Cs-137 18 <LLD . - <LLD 0 Ba-140 60 <LLD . - <LLD 0 La-140 15 <LUD - <LLD 0 Other Gammas 10-15 <LLD . . <LLD 0 Surface Water Gross Beta 5 4 <LLD BY-29, Byron, 5.2 (1/2) 5.2 (1/2) 0 (pCKL) Upstream of Intake, Gamma Spec. 5 3.0 mi. N, Sector A Cs-134 15 <LU . . <LLD 0 Cs-137 18 <LU . . <LLD 0 Other ODCM-Required 15-60 <LU) . . <LLD 0 Gammas Tritium 2 200 <LLD . . <LLD 0 Well Water Tritium 3 200 <LUD None 0 (pCVL)

Gamma Spec. 3 Cs-134 15 <LU) _ . None 0 Cs-137 18 <LLD . . None 0 Other ODCM-Required 15-60 <LLD . . None 0 Gammas Gamma Background Gamma Dose 80 9.7 25.2 (78178) BY-107-2', 1.4 mi. 29.0 (111) 21.0 (2/2) 0 (TLDs) (19.0-29.0) SE, Sector G (20.0-22.0)

(mR/Qtr.)

a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

b Locations BY-21 and BY-24 had identical means of0.028 pCirn3. Only BY-21 is detailed in this summary.

b Locations BY-1 07-2 and 208-1 had identical means of 29.0 mR. Only BY 107-2 is detailed in this summary.

1-27

Table 5.0-4 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Byon Nuclear Power Station DocketNo. 50454. 50-455 Location ofFacility Ogle. Illinois ReportingPeriod 2nd Ouarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Mcana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Air Gross 65 0.01 0.019 (52152) BY-08, Leaf River 0.022 (13113) 0.022 (13/13) 0 Particulates Beta (0.011.0.026) 6.8 mi. WNW, Sector (0.015-0.028) (0.015-0.028)

(pC/m3) Gamma Spec. S P Cs-I 34 0.05 <LLD <LLD 0 Cs-I 37 0.06 <LD _ <LLD 0 Other Gammas 0.0140.04 <LD <LWD 0 Airborne Iodine 1-131. 35 0.07 <LLD <LLD 0 (pCitm3)

Milk 1-131 15 1 <LLD . <LLD 0 (pCi/L)

Gamma Spec. 15 Cs-134 15 <LD <LLD 0 Cs-137 18 <LD - <LLD 0 Ba-140 60 <LLD - <LD 0 La-140 15 <LLD - . <LD 0 Other Gammas 10-15 <LLD - . <LLD 0 Fish Gamma Spec. 5 (pCi/g wet)

Cs-134 0.13 <LD - <LLD 0 Cs-137 0.15 <LD - <LLD 0 Other ODCM-Required 0.13-0.26 <LLD - <LD 0 Gammas Other Gammas 0.20-0.30 <LD - <LLD 0 Bottom Gamma Spec. 2 Sediment (pCi/g wet) Cs-134 0.15 <LW . . None 0 Cs-137 0.18 <LW . None 0 a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

I-28

Table 5.0-4 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Bron Nuclear Power Station Docket No. 50-454. 50-455 LocationofFacifity Ogle, Illinois ReportingPeriod 2ndOuarter 2003 (County, State)

Sample Type and Indicator Locationwith Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Nleana Quarterly Mean Range Meana Results Range Range Surface Water Gross Beta 6 4 <LLD - <LLD 0 (PCi/L)

Gamma Spec. 6 Cs-134 15 <LLD - <LLD 0 Cs-137 18 <LLD - <LLD 0 Other ODCM-Required 15-30 <LLD - <LLD 0 Gammas Tritium 2 200 251 (1/1) BY-12, Oregon Pool 251 (1/1) <LLD 0 of Rock River, Downstream 4.5 mi. SSW, Sector K Well Water Tritium 3 200 <LLD None 0 (pCi/L)

Gamma Spec. 3 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM-Required 15-30 <LLD None 0 Gammas Gamma Gamma Dose 80 9.7 25.3 (78/78) BY-107-2, 1.4 mi. 30.0 (1/1) 19.0 (2/2) 0 Background (21.0-30.0) SE, Sector G (19.0-19.0)

(TLDs)

(mR/Qtr.)

a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

1-29

Table 5.0-5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Byron Nuclear Power Station Docket No. 5W54. 5W55 Location of Facility Ogle. Illinois Reporting Period 3rd Quarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Air Gross Beta 70 0.01 0.027 (56/56) BY-08, Leaf River 0.029 (14/14) 0.029 (14114) 0 Particulates (0.015-0.040) 6.8 mi. WNW, Sector (0.017-0.040) (0.017-0.040)

(pCi/m3 Gamma Spec. P Cs-134 0.05 <LLD - <LLD 0 Cs- 13 7 0.06 <LLD - <LLD 0 Other Gammas 0.01-0.04 <LLD - <LLD 0 Airborne Iodine 1-131 35 0.07 <LLD - - <LLD 0 (pCi/m 3 )

Milk 1-131 21 1 <LLD - - <LLD 0 (pCi/L)

Gamma Spec. 21 Cs-134 15 <LLD - - <LLD 0 Cs-137 18 <LLD - - <LLD 0 Ba-140 60 <LLD - <LLD 0 La-140 15 <LLD - <LLD 0 Other Gammas 10-15 <LLD - - <LLD Vegetation 1-131 12 0.06 <LLD - - <LLD 0 (pCi/g wet)

Gamma Spec. 12 Cs-134 0.06 <LLD - - <LLD 0 Cs-137 0.08 <LLD - - <LLD 0 Other Gammas 0.01-0.10 <LLD - - <LLD 0 Surface Water Gross Beta 6 4 4.4 (1/3) BY-12 Oregon Pool of 4.4 (1/3) <LLD 0 (pCi/L) Rock River, 4.5 mi Gamma Spec. 6 SSW, Sector K Cs-134 15 <LLD - <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCNI- 15-30 <LLD - <LLD 0 Required Gammas Tritium 2 200 1,943 (1/1) BY-12 Oregon Pool of 1,943 (1/1) <LLD 0 Rock River, 4.5 mi SSW, Sector K a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

1-30

Table 5.0-5 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Bvron Nuclear Power Station Docket No. 50-454. 50455 Location of Facility . Ogle. llinois Reporting Period 3rdOuarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Numberof Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Well Water Tritium 3 200 <LLD - - None 0 Gamma Spec. 3 Cs-134 15 <LLD - - None 0 Cs-137 18 <LLD - - None 0 Other ODCM- 15-30 <LLD - - None 0 Required Gammas Gamma Gamma Dose 80 9.7 22.0 (78/78) BY-107-2, 27.0 (1/1) 17.5 (2/2) 0 Background (16.0-27.0) 1A mi SE, Sector G (17.0-18.0)

(TLDs)

(mRJQtr.)

a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

1-31

Table 5.0-6 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Byron Nuclear Power Station Docket No. 50454. 50455 LocationofFacility O2e. Illinois Reporting Period 4th Ouarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Air Gross 65 0.01 0.029 (52/52) BY-21, Byron 0.030 (13/13) 0.029 (13/13) 0 Particulates Beta (0.014-0.046) Nearsite N (0.016-0.046) (0.014-0.042) 3 (pCim ) Gamma Spec. 5 0.3 mi N, Sector A Cs-134 0.05 <LLD - <LLD 0 Cs-137 0.06 <LLD - <LLD 0 Other Gammas 0.01-0.04 <LLD - <LLD 0 Airborne Iodine 1.131 30 0.07 <LLD - - <LLD 0 3

(pCi/m )

Milk 1-131 12 1 <LLD - - <LLD 0 (pCi/L)

Gamma Spec. 12 Cs-134 15 <LLD - - <LLD 0 Cs-137 18 <LLD - - <LLD 0 Ba-140 60 <LUD - <LLD 0 La-140 15 <LLD - - <LLD 0 Other Gammas 10-15 <LLD - - <LLD 0 Fish Gamma Spec. 6 (pCi/g wet)

Cs-134 0.13 <LLD - - <LLD 0 Cs-137 0.15 <LLD - - <LLD 0 Other ODCM- 0.13-0.26 <LLD - - <LLD 0 Required Gammas 0.20-0.30 <LLD - - <LLD 0 Other Gammas Bottom Gamma Spec. 2 Sediments (pCi/g dry) Cs-134 0.15 <LLD <LLD 0 Cs-137 0.18 <LLD <LLD 0 Other Gammas 0.10-0.60 <LLD <LLD 0 a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

I-32

Table 5.0-6 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Bvron Nuclear Power Station Docket No. 50-454. 50-455 Location of Facility Ogle. Illinois Reporting Period 4th Quarter 2003 (County, State)

Sample Typeand Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Surface Water Gross Beta 6 4 4.3 (2/3) BY-I 2, Oregon Pool 4.3 (2/3) 4.1 (2/3) 0 (pCi1L) (4.0-4.6) of Rock River, 4.5 mi (4.0-4.6 (4.0-4.1)

Gamma Spec. 6 SSW, Sector K Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCM-Required 15-30 <LLD .- LLD 0 Gammas Tritium 2 200 1,393 (1/1) BY-12, Oregon Pool 1,393 ("'l) <LLD 0 of Rock River, 4.5 mi SSW, Sector K Well Water Gamma Spec. 3 (pCi/L)

Cs-134 15 <LLD None 0 Cs-137 i8 <LLD . None 0 Other ODCM-Required 15-30 <LLD . . None 0 Gammas Tritium 3 200 <LLD . . None 0 Gamma Gamma Dose 80 9.7 24.2 (78/78) BY-213-4.4.6 mi. W, 31.0 (1/1) 20.5 (2/2) 0 Background (18.0-31.0) Sector N (20.0-21.0)

CTLDs)

(mR/Qtr.)

a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

1-33

BYRON APPENDIX II METEOROLOGICAL DATA H-1

Byron Nuclear Station Period of Record: January - March 2003 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 NNE 0 NE 2 ENE 0 E 0 ESE 0 SE 0 SSE 1 S 0 SSW 0 SW 2 WSW 0 W .0 WNW 0 NW 0 NNW 0 Variable 0 Total 0 5 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 11-2

Byron Nuclear Station Period of Record: January - March 2003 Stability Class - Moderately Unstable - 25OFt-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 1 0 0 0

NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 o 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 o 0 0 0 0 0 SE 0 o 0 0 0 0 0 SSE 0 0 0 0 0

_ 0 0 S 0 o 0 0 0 0 0 SSW 0 o 0 0 0 0 0 SW 0 o 0 0 0 0

WSW 0 1 1 0 0 2 0

o 0 0 0 0 W 0 0

WNW 0 1 0 0 0 1 0

NW 0 o 0 0 0 0 0

NNW 0 0 1 0 0 0

Variable 0 0 0 0 0 0 Total 0 0 2 3 0 0 5 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 11-3

Byron Nuclear Station Period of Record: January - March 2003 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 3 0

NNE 0 0 0

NE 0 1 0

ENE 0 1 0

E 0 0 0

ESE 0 0 0

SE 0 0 0

SSE 0 0

_ 0 S 0 1 0

SSW 0 5 0

SW 0 8 0

WSW 0 8 0

W 0 14 0

WNW 0 8 0

NW 0 9.

0 NNW 0 3 0

Variable 0 0 Total 0 4 36 20 1 0 61 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 11-4

Byron Nuclear Station Period of Record: January - March 2003 Stability Class - Neutral - 250Ft-3OFt Delta-T (F)

Winds Measured at 30 Feet Wind Speed (in mph)

Wind 1-3 4-7 8-12 13-18 19-24 > 24 Total Direction 5 15 44 41 2 0 107 N

3 8 9 18 0 0 38 NNE 3 8 13 43 27 0 94 NE 2 9 13 7 2 0 33 ENE 3 14 12 2 0 0 31 E

2 5 3 0 0 0 10 ESE SE 0 15 2 4 0 0 21 SSE 1 10 25 12 0 0 48 1 21 53 24 2 0 101 S

5 20 61 17 1 0 104 SSW SW 2 21 33 18 2 0 76 1 9 29 28 3 1 71 WSW W 2 17 36 37 6 0 98 3 28 104 75 6 1 217 WNW NW 7 43 89 13 1 0 153 2 27 74 14 0 0 117 NNW Variable 0 0 0 0 0 0 0 42 270 600 353 52 2 1319 Total 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 11-5

Byron Nuclear Station Period of Record: January - March 2003 ec&e IWo

' 4 tv% C - siahtlv Stable - 2SOFt-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 K 1 3 5 1 0 0 10 NNE 2 12 6 0 0 0 20 NE 1 7 7 1 0 0 16 ENE 1 3 2 4 0 0 10 E 9 5 5 0 0 0 19 ESE 2 16 6 0 0 0 24 SE 3 19 12 2 0 0 36 SSE 2 15 15 6 0 0 38 S 2 33 19 8 1 0 63 SSW 9 20 15 10 0 0 54 SW 2 22 14 5 0 0 43 WSW 6 17 7 3 0 0 33 W 14 28 29 11 0 0 82 WNW 7 27 15 0 0 0 49 NW 8 28 16 1 0 0 53 NNW 2 17 17 0 0 0 36 Variable 0 0 0 0 0 0 0 Total 71 272 190 52 1 0 586 unira ofralm inthis stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 H-6

Byron Nuclear Station Period of Record: January - March 2003 Stability Class - Moderately Stable - 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 0 0 NNE 0 0 0 0 NE 1 1 0 2 ENE 1 0 1 2 E 2 0 2 4 ESE 5 4 2 11 SE 2 4 0 6 SSE 3 8 17 30 S 9 20 6 36 SSW 9 6 2 17 SW 5 0 1 6 WSW 1 3 0 4 W 6 6 3 15 WNW 5 2 0 7 NW 3 1 0 4 NNW 0 1 0 0 0 0 Variable 0 Total 52 56 34 3 0 0 145 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 11-7

Byron Nuclear Station Period of Record: January - March 2003 Stability Class - Extremely Stable - 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 NNE 0 NE 0 ENE 0 E 2 ESE 3 SE 0 SSE 1 S 2 SSW 1 SW 0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 Total 14 9 6 0 0 0 29 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 11-8

Byron Nuclear Station Period of Record: January - March 2003 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 Total 5 Hours of calm in this stability class: 0 Hours of missing w~ind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 1-9

Byron Nuclear Station Period of Record: January - March 2003 Stability Class - Moderately Unstable - 25OFt-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-------- _ _ _- - - - - - - - - - -

N NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0 5 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: 1 11-10

Byron Nuclear Station Period of Record: January - March 2003 Stability Class - Slightly Unstable - 25OFt-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 0 NE 1 ENE 1 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 4 SW 7 WSW 9 W 12 WNW 8 NW 13 NNr 4 Variable 0 Total 0 2 18 30 11 0 61 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: 1 11-11

Byron Nuclear Station Period of Record: January - March 2003 Stability Class - Neutral - 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 1 11 20 35 28 2 97 NNE 0 13 5 19 22 1 60 NE 0 8 6 10 32 27 83 ENE 2 7 8 12 11 9 49 E 0 7 8 15 3 0 33 ESE 0 2 1 0 1 1 £ SE 1 5 12 3 2 2 25 SSE 1 0 17 12 5 2 37 S 1 5 29 28 16 2 81 SSW 1 9 26 33 10 1 80 SW 1 9 39 34 23 3 109 WSW 0 8 14 30 22 1 75 W 3 7 26 28 28 4 96 WNW 1 10 35 73 48 21 188 NW 0 12 63 85 16 2 178 NNW 1 9 42 *61 10 0 123 Variable 0 0 0 0 0 0 0 Total 13 122 351 478 277 78 1319 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 1 II-12

Byron Nuclear Station Period of Record: January - March 2003 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 2 4 1 0 10 NNE 5 6 3 0 17 NE 3 8 3 1 17 ENE 6 2 1 0 14 E 4 3 4 2 15 ESE 2 4 3 0 14 SE 12 12 8 0 32 SSE 4 11 11 1 28 S 7 13 11 10 45 SSW 9 42 11 1 68 SW 10 27 9 3 50 WSW 10 15 5 1 32 W 7 23 17 1 54 WNW 20 38 4 0 65 NW 36 25 4 0 73 NNW 12 30 2 0 53 Variable 0 0 0 0 0 Total 5 53 149 263 97 20 587 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: 1 11-13

Byron Nuclear Station Period of Record: January - March 2003 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 1 0 9 NNE 0 0 0 NE 0 0 1 ENE 0 0 3 E 1 0 4 ESE 1 2 4 SE 2 0 4 SSE 2 0 9 S 6 13 35 SSW 7 8 24 SW 1 4 15 WSW 1 0 8 W 3 1 7 WNW 10 0 16 NW 0 0 7 NNW 0 0 5 Variable 0 0 0 Total 7 35 39 35 28 7 151 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: 1 11-14

Byron Nuclear Station Period of Record: January - March 2003 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 0 NNE 0 NE 0 ENE 0 E 2 ESE 0 SE 0 SSE -0 S 1 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 Total 0 9 9 4 5 3 30 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: 1 II-15

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Extremely Unstable - 25OFt-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 2 NNE 0 NE 3 ENE 1 E 0 ESE 0 SE 0 SSE 0 S 5 SSW 1 SW WSW 0 W 0 WNW 0 NW 1 NNW 0 Variable 0 Total '0 2 18 14 1 0 35 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 11-16

Byron Nuclear Station Period of Record: April - June 2003 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 2 5 4 11 NNE 0 8 1 9 NE 0 1 3 4 ENE 1 3 1 5 E 1 7 0 8 ESE 0 1 0 1 SE 1 0 0 1 SSE 0 1 0 1 S 0 3 2 5 SSW 0 8 10 19 SW 0 5 2 7 WSW 0 3 0 3 W 1 5 1 7 WNW 2 2 3 7 NW 1 7 0 8 NNW 3 4 2 9 Variable 0 0 0 0 Total 0 12 63 29 1 0 105 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 1I-17

Byron Nuclear Station Period of Record: April - June 2003 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 6 12 3 0 o 21 NNE 0 4 11 3 0 0 18 NE 0 1 0 0 0 0 1 ENE 0 1 3 2 2 0 8 E 0 4 6 1 0 0 11 ESE 0 4 3 0 0 0 7 SE 0 1 2 0 0 0 3 SSE 0 4 1 0 0 0 5 S 0 3 7 0 0 0 10 SSW 0 3 7 4 2 0 16 SW 0 0 2 4 0 0 6 WSW 0 1 3 1 0 0 5 W 0 2 3 4 0 0 9 WNW 0 3 7 3 1 0 14 NW 0 6 5 1 0 0 12 NNW 0 6 8 1 0 0 15 Variable 0 0 0 0 0 0 Total 0 49 80 27 5 0 161 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 11-18

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Neutral - 25OFt-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 3 27 37 6 0 0 73 NNE 5 31 43 9 0 0 88 NE 4 23 4S 17 3 0 92 ENE 1 24 55 42 12 1 135 E 3 39 34 2 0 0 78 ESE 4 13 15 8 1 0 41 SE 0 7 19 16 1 0 43 SSE 0 16 14 9 0 0 39 S 1 8 21 5 4 0 39 SSW 2 7 9 13 6 0 37 SW 3 8 17 8 1 0 37 WSW 5 7 17 27 4 7 67 W 2 14 14 7 2 8 47 WNW 7 8 14 11 2 0 42 NW 2 16 20 6 0 0 44 NNW 8 24 14 9 0 0 55 Variable 0 0 0 0 0 0 0 Total 50 272 388 195 36 16 957 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 II-19

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Slightly Stable - 25OFt-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 18 3 0 0 26 NNE 23 9 0 0 36 NE 15 22 5 0 46 ENE 24 26 S 0 59 E 54 9 2 0 74 ESE 17 10 5 0 35 SE 7 3 2 0 14 SSE 10 15 2 0 29 S 12 25 12 0 56 SSW 8 14 12 0 39 SW 18 6 3 0 32 WSW 20 4 0 0 29 W 13 3 0 0 23 WNW 12 7 0 0 21 NW 4 4 0 0 14 NNW 14 4 1 0 25 Variable 0 0 0 0 0 Total 76 269 164 49 0 558 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 11-20

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Moderately Stable - 25OFt-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 1 12 0 13 NNE 0 1 0 5 NE 1 2 0 3 ENE 1 2 1 4 E 4 19 1 24 ESE 4 .7 2 13 SE 0 12 2 14 SSE 1 18 23 42 S 3 14 6 23 SSW 6 4 1 11 SW 9 0 0 9 WSW 9 3 0 12 W 10 4 0 14 WNW 5 3 0 8 NW 12 2 0 14 NNW 6 9 0 15 Variable 0 0 0 0 Total 72 116 36 0 224 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 11-21

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Extremely Stable - 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 1 3 4 NNE 0 0 0 NE 0 1 1 ENE 0 0 1 E 2 2 5 ESE 1 3 4 SE 0 4 5 SSE 1 9 11 S 3 11 15 SSW 3 6 9 SW 1 0 1 WSW 4 0 4 W 0 0 0 WNW 7 0 7 NW 13 0 13 NNW 1 2 3 Variable 0 0 0 Total 37 41 0 83 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-22

Byron Nuclear Station Period of Record: April - June 2003 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 0 7 20 8 0 35 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 II-23

Byron Nuclear Station Period of Record: April - June 2003 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 6 2 13 NNE 0 0 5 4 9 NE 0 0 0 3 4 ENE 0 0 3 3 7 E 0 0 6 0 7 ESE 0 1 2 0 3 SE 0 0 0 0 0 SSE 0 o 0 1 1 S 0 0 2 1 3 SSW 0 0 2 10 15 SW 0 0 3 7 13 WSW 0 0 1 1 2 W 0 0 4 2 6 WNW 0 0 3 0 4 NW 0 1 6 1 11 NNW 0 0 1 6 7 Variable 0 0 0 0 0 Total 0 4 44 41 14 2 105 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 2 II-24

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Slightly Unstable - 25OFt-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 14 23 NNE 1 9 17 NE 2 2 6 ENE 2 1 7 E 1 7 12 ESE 2 5 7 SE 0 4 4 SSE 3 2 5 S 4 1 8 SSW 1 3 15 SW 0 2 8 WSW 0 5 W 1 5 7 WNW 1 3 9 NW 2 8 17 NNW 3 5 12 Variable 0 0 0 Total 0 25 72 45 16 4 162 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 2 fl-25

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Neutral - 25OFt-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 20 28 18 4 2 73 NNE 18 31 30 4 2 86 NE 17 28 39 10 1 97 ENE 14 34 46 22 14 131 E 14 37 39 9 3 103 ESE 4 10 12 7 4 38 SE 4 8 14 9 9 45 SSE 3 14 12 7 2 38 S 6 8 12 3 2 31 SSW 2 9 9 12 9 41 SW 4 7 17 5 0 37 WSW 3 8 24 19 11 70 W 14 13 9 2 8 49 WNW 5 3 9 7 3 33 NW 6 10 14 7 S 46 NNW 11 10 13 6 0 42 Variable 0 .0 0 0 0 0 Total 32 145 258 317 133 75 960 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 26 Hours of missing stability measurements in all stability classes: 2 11-26

Byron Nuclear Station Period of Record: April - June 2003 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 9 5 1 22 NNE 8 11 2 28 NE 14 27 7 53 ENE 28 25 7 65 E 41 32 7 85 ESE 10 14 12 44 SE 4 5 5 17 SSE 2 6 7 17 S 1 14 16 38 SSW 7 13 21 48 SW 7 8 5 28 WSW 7 20 0 36 W 9 10 0 23 WNW 9 14 2 30 NW 3 6 2 13 NNW 3 10 2 16 Variable 0 0 0 0 Total 12 51 162 220 96 22 563 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 14 Hours of missing stability measurements in all stability classes: 2 II-27

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Moderately Stable - 25OFt-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 3 6 6 0 0 15 NNE 0 3 6 6 0 0 15 NE 0 1 10 6 1 0 18 ENE 0 2 4 2 0 0 8 E 0 4 9 4 0 0 17 ESE 0 1 4 1 8 3 17 SE 0 2 2 4 4 0 12 SSE 0 2 3 4 7 2 18 S 1 1 3 8 20 5 38 SSW 0 1 1 8 7 0 17 SW 0 1 1 3 0 0 5 WSW 1 1 4 5 0 0 11 W 2 2 3 7 0 0 14 WNW 0 0 2 4 0 0 6 NW 1 0 3 3 0 0 7 NNW 0 1 5 3 0 0 9 Variable 0 0 0 0 0 0 0 Total 5 25 66 74 47 10 227 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 2 H-28

Byron Nuclear Station Period of Record: April - June 2003 Stability Class - Extremely Stable - 25OFt-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 6 5

NNE NE 2 ENE 1 E 1 4

ESE SE 1 SSE 5 12 S

SSW 10 SW 15 WSW 7 W 4 WNW 2 3

NW NNW 2 0

Variable Total 5 19 23 31 6 0 84 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 2 II-29

Byron Nuclear Station Period of Record: July - September 2003 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 10 0 12 NNE 7 0 12 NE 1 0 1 ENE 0 0 2 E 0 0 9 ESE 1 0 3 SE 3 0 5 SSE 15 4 21 S 3 4 7 SSW 7 2 10 SW 9 2 15 WSW 15 1 20 W 13 10 26 WNW 9 5 14 NW 2 0 7 NNW 3 0 3 Variable 0 0 0 Total 0 41 98 28 0 0 167 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 H-30

Byron Nuclear Station Period of Record: July - September 2003 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 1 3 4 0

NNE 1 5 6 0

NE 0 4 4 0

ENE 1 0 1 0

E 2 2 4 0

ESE 3 1 4 0

SE 1 2 3 SSE 2 .8 1 11 S 1 4 2 7 SSW 3 2 1 6 SW 2 0 1 3 WSW 3 4 0 7 W 1 6 0 7 WNW 0 4 a 5 NW 2 2 0 4 NNW 0 . 1 0 1 Variable 0 0 0 0 Total 0 23 48 6 0 0 77 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 II-31

Byron Nuclear Station Period of Record: July - September 2003 Stability Class - Slightly Unstable - 25OFt-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

_ __ _ _ _ -- - - - __ 5____ 12--- 0---- ----- ----- 17---

N 5 12 0 0 0 17 NNE 2 13 0 0 0 i5 NE 2 3 0 0 0 ENE 1 0 0 0 0 1 E 6 0 0 0 0 6 ESE 3 1 0 0 0 4 SE 5 I 0 0 0 6 SSE 1 12 1 0 0 15 S 4 2 1 0 0 7 SSW 3 1 3 0 0 8 SW 2 7 1 0 0 10 WSW 7 5 3 0 0 15 W 3 1 3 0 0 8 WNW 2 5 1 0 0 8 NW 2 3 0 0 0 5 NNW 4 3 0 0 0 7 Variable 0 0 0 0 0 0 Total 3 52 69 13 0 0 137 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-32

Byron Nuclear Station Period of Record: July - September 2003 Stability Class - Neutral - 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 4 17 29 0 0 0 50 NNE 3 14 13 0 0 0 30 NE 0 14 9 0 0 0 23 ENE 2 10 16 1 0 0 29 E 0 23 2 0 0 0 25 ESE 2 13 0 0 0 0 15 SE 3 10 10 0 0 0 23 SSE 2 19 21 4 0 0 46 S 0 18 39 8 0 0 65 SSW 1 19 25 17 0 0 62 SW 2 25 19 2 0 0 48 WSW 6 24 6 2 0 0 38 W 4 29 28 8 0 0 69 WNW 1 24 28 7 0 0 60 NW 3 22 28 0 0 0 53 NNW 1 16 9 0 0 0 26 Variable 0 0 0 0 0 0 0 Total 34 297 282 49 0 0 662 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 1I-33

Byron Nuclear Station Period of Record: July - September 2003 Stability Class - Slightly Stable - 25OFt-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 5 19 1 25 NNE 5 12 1 18 NE 2 12 6 21 ENE 7 28 12 47 E 7 20 1 28 ESE 4 11 4 19 SE 3 19 8 30 SSE 4 23 32 59 S 5 34 20 60 SSW 8 16 19 43 SW 10 23 5 38 WSW 10 24 3 38 W 12 31 10 53 WNW 14 26 9 49 NW 10 20 4 34 NNW 7 21 2 30 Variable 0 0 0 0 Total 113 339 137 0 592 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 11-34

Byron Nuclear Station Period of Record: July - September 2003 Stability Class - Moderately Stable - 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 7 9 0 0 0 0 16 NNE 5 3 0 0 0 0 8 NE 0 1 0 0 0 0 1 ENE 2 14 0 16 E 4 17 0 21 ESE 4 29 0 38 SE 3 36 0 41 SSE 6 49 0 64 S 13 72 0 88 SSW 9 5 0 14 SW 15 5 0 20 WSW 16 3 0 18 W 16 8 0 24 WNW 17 3 0 20 NW 9 3 0 13 5 9 0 0 0 0 14 Variable 0 0 0 0 0 0 0 Total 130 266 20 0 0 0 416 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 11-35

Byron Nuclear Station Period of Record: July - September 2003 Stability Class - Extremely Stable - 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 3 1 4 NNE 0 0 0 NE 1 0 1 ENE 0 0 0 E 4 7 11 ESE 5 4 9 SE 0 9 9 SSE 4 11 15 S 8 11 19 SSW 11 4 15 SW 4 0 4 WSW 7 0 7 W 9 0 9 WNW 8 0 8 NW 4 0 4 NNW S 0 S Variable 0 0 0 Total 73 47 0 0 0 0 120 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 1I-36

Byron Nuclear Station Period of Record: July - September 2003 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 0 0 7 4 0 0 11 NNE 0 0 12 1 0 0 13 NE 0 0 1 2 0 0 3 ENE 0 0 0 0 0 0 0 E 0 4 6 0 0 0 - 10 ESE 0 0 5 0 0 0 5 SE 0 0 2 2 0 0 4 SSE 0 1 8 9 2 0 20 S 0 0 1 3 4 0 8 SSW 0 1 1 6 1 0 9 SW 0 4 3 3 3 0 13 WSW 0 3 7 10 0 0 20 W 0 0 7 15 4 0 26 WNW 0 0 1 11 3 0 15 NW 0 0 6 I 2 0 9 NNW 0 0 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 13 67 68 19 0 167 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 II-37

Byron Nuclear Station Period of Record: July - September 2003 Stability Class - Moderately Unstable - 2SOFt-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 3 0

NNE 0 6 0

NE 0 5 0

ENE 0 1 0

E 0 2 0

ESE 0 5 0

SE 0 3 0

SSE 0 12 0

S 0 0 7 0

SSW 0 6 0

SW 0 3 0

WSW 0 5 0

W 0 8 0

WNW 0 6 0

NW 0 4 0

NNW 0 1 0

Variable 0 0 Total 0 8 32 31 6 0 77 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 11-38

Byron Nuclear Station Period of Record: July - September 2003 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 0 1 8 5 0 0 14 NNE 0 2 8 5 0 0 15 NE 0 0 3 3 0 0 6 ENE 0 2 0 1 0 0 3 E 0 2. 5 0 0 0 7 ESE 0 1 3 0 0 0 4 SE 0 4 1 1 0 0 6 SSE 0 2 6 5 2 0 15 S 0 1 4 1 1 0 7 SSW 0 3 0 2 2 0 7 SW 0 3 2 5 1 0 .11 WSW 0 5 6 1 1 0 13 W 0 3 1 1 3 0 8 WNW 0 0 4 3 2 0 9 NW 0 1 1 3 0 0 5 NNW 0 2 3 2 0 0 7 Variable 0 0 0 0 0 0 0 Total 0 32 55 38 12 0 137 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 H-39

Byron Nuclear Station Period of Record: July - September 2003 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 11 13 13 0 37 NNE 7 17 15 0 .39 NE 5 13 11 0 29 ENE 5 8 11 1 25 E 2 18 6 0 26 ESE 8 8 5 0 21 SE 7 3 6 2 19 SSE 5 16 17 2 43 S 3 17 29 10 60 SSW 10 21 10 16 63 SW 12 22 14 8 58 WSW 10 14 9 2 35 W 12 27 13 7 61 WNW 12 17 21 7 57 NW 10 14 33 3 60 NNW 10 9 10 1 31 Variable 0 0 0 0 0 Total 10 129 237 223 59 6 664 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 1140

Byron Nuclear Station Period of Record: July - September 2003 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 4 14 11 0 29 NNE 3 10 4 0 18 NE 3 11 9 0 23 ENE 7 19 21 1 49 E 1 17 15 0 33 ESE 0 3 7 2 14 SE 3 5 8 8 25 SSE 1 3 15 24 45 S 2 12 30 8 54 SSW 4 9 25 16 54 SW 10 9 18 3 40 WSW 5 17 10 2 34 W 3 16 16 1 36 WNW 3 25 29 2 60 NW 9 14 19 1 43 NNW 7 14 15 2 39 Variable 0 0 0 0 0 Total 7 65 198 252 70 4 596 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 II-41

Byron Nuclear Station Period of Record: July - September 2003 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 2 7 11 0 22 NNE 0 10 6 0 18 NE 1 10 2 0 19 ENE 2 4 0 0 8 E 1 13 10 2 28 ESE 0 0 7 5 14 SE 1 0 13 28 43 SSE 0 5 14 22 46 S 0 7 15 14 37 SSW 1 9 45 8 67 SW 1 8 20 0 34 WSW 1 7 7 0 18 W 0 16 7 0 28 WNW 0 13 2 0 17 NW 0 9 S 0 16 NNW 0 4 2 1 9 Variable 0 0 0 0 0 Total 10 43 122 166 80 3 424 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 2 II-42

Byron Nuclear Station Period of Record: July - September 2003 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 0 1 0 1 0 0 2 NNE 0 1 1 1 0 0 3 NE 2 1 1 0 0 0 4 ENE 4 5 1 0 0 0 10 E 2 2 2 0 0 0 6 ESE 0 1 1 1 3 2 8 SE 3 1 0 12 SSE 0 0 0 15 S 1 2 0 14 SSW 2 2 0 20 SW 2 0 0 9 WSW 0 0 0 11 W 0 0 0 6 WNW 1 0 0 7 NW 0 0 0 5 NNW 1 0 0 5 Variable 0 0 0 0 Total 18 33 39 37 8 2 137 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 2 H-43

Byron Nuclear Station Period of Record: October - December 2003 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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0 6 32 4 0 0 42 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 1-44

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Moderately Unstable - 25OFt-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 4 3 0

NNE 0 0 0

NE 0 0 0

ENE 0 0 0

E 3 0 0

ESE 2 0 0

SE 5 0 0

SSE 1 1 0

S 0 1 SSW 2 1 0 SW 2 2 .0 WSW 0 2 W 2 1 2 WNW 2 2 NW 1 3 0 NNW 0 0 0 Variable 0 0 0 Total 0 27 16 4 0 0 47 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-45

Byron Nuclear Station Period of Record: October - December2003 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 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW .0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 Total 0 20 20 10 1 0 51 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 11-46

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Neutral - 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 4 15 9 12 0 40 NNE 1 8 7 3 19 0

NE 1 8 10 9 28 0

ENE 0 15 26 8 49 0

E 5 16 3 1 25 0

ESE 2 8 8 1 19 SE 0 14 17 8 1 40 SSE 5 19 43 32 S 104 S 1 20 30 14 2 67 SSW 2 9 24 25 7 67 SW 3 12 20 17 0 52 WSW 3 14 27 24 4 72 W7 23 38 21 30 126 WNW 4 22 59 20 7 112 NW 6 41 75 32 0 154 NNW 6 20 20 7 1 54 Variable 0 0 0 0 0 0 Total 50 264 416 234 57 7 1028 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 II-47

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Slightly Stable - 25OFt-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 2 10 11 0 23 NNE 3 5 4 2 14 NE 2 7 5 0 14 ENE 9 21 11 3 44 E 8 32 3 0 43 ESE 5 10 16 0 31 SE 3 16 18 9 46 SSE 1 16 7 21 47 S 0 18 28 13 61 SSW 8 12 17 19 56 SW 7 26 20 7 60 WSW 7 26 10 5 48 W 7 35 6 4 52 WNW 11 36 18 13 78 NW 7 23 11 0 41 NNW 3 15 11 0 29 Variable 0 0 0 0 Total 83 308 196 96 0 *687 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 11-48

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Moderately Stable - 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 3 4 NNE 1 1 2 NE 0 1 1 ENE 3 6 9 E 6 12 18 ESE 1 23 27 SE 2 17 23 SSE 0 -26 34 S 2 19 23 SSW 3 11 15 SW 2 4 6 WSW 9 7 16 W 7 13 20 WNW 6 4 11 NW 6 4 10 NNW 0 8 9 Variable 0 0 0 Total 48 159 19 2 0 0 228 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 1-49

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Extremely Stable - 25OFt-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 NNE 0 1 NE 0 0 ENE 0 1 E 8 11 ESE 13 17 SE 9 11 SSE 4 9 S 13 18 SSW 1 1 SW 0 2 WSW 1 4 W 0 2 WNW 0 4 NW 0 3 NNW 1 4 Variable 0 0 Total 29 so 9 0 0 0 88 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 11-50

Byron Nuclear Station Period of Record: October - December2003 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 0 0 0 0 0 0

NNE 0 0 0* 0 0 0

NE o 0 0 0 0 0

ENE 0 0 0 0 0 0

E o 0 0 0 0 0

ESE 0 0 0 0 0 SE 0 5 0 0 0 5 SSE 0 1 0 0 0 I S 0 0 0 10 SSW 0 0 1 0 0 1 SW 0 0 6 0 0 6 WSW 0 1 7 0 0 8 W 1 0 2 0 0 3 WNW 0 1 6 0 0 7 NW 1 1 3 3 0 8 NNW 0 0 2 0 0 2 Variable 0 0 0 0 0 0 Total 2 9 27 4 0 42 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: 11 11-51

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Moderately 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 13 22 8 4 0 47 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 11-52

Byron Nuclear Station Period of Record: October - December2003 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-------- _ _ _ _ _ - - - - - - - - - - - - - - - - - - - - - - - - -

N 0 0 5 0

NNE 0 0 0

NE 0 1 0

ENE 0 1 0

E 0 1 0

ESE 0 0 0

SE 0 2 0

SSE 1 3 0

S 0 8 00 SSW 0 0 0

SW 0 4 0

WSW 1 6 0

W 1 5 0

WNW 0 4 0

NW 1 7 0

Nrb 0 4 0

Variable 0 0 Total 0 12 16 14 5 4 51 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: 11 11-53

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Neutral - 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 5 11 6 7 1 32 NNE 5 7 12 4 0 30 NE 5 4 7 7 0 23 ENE 2 1 24 9 1 37 E 7 14 10 1 0 32 ESE 6 6 8 3 0 26 SE 2 10 8 0 1 23 SSE 2 23 40 23 15 104 S 9 25 17 14 6 72 SSW 6 9 21 21 8 66 SW 2 10 15 12 9 48 WSW 7 17 27 17 1 69 W 10 24 29 31 29 124 WNW 9 31 36 19 9 107 NW 13 34 70 32 9 158 NNW 14 16 29 8 2 69 Variable 0 0 0 0 0 0 Total 16 104 242 359 208 91 1020 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 9 Hours of missing stability measurements in all stability classes: 11 II-54

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Slightly Stable - 25OFt-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 7 8 9 2 0 26 NNE 2 6 9 5 0 24 NE 4 1 6 0 0 11 ENE 8 11 3 4 0 28 E 9 16 11 1 0 40 ESE 7 3 12 10 1 33 SE 3 8 12 10 0 33 SSE 1 5 13 20 .17 58 S 0 4 16 16 9 46 SSW 0 8 25 22 10 67 SW 2 7 20 17 3 49 WSW 5 19 23 9 0 56 W 5 15 26 4 0 SO WNW 21 25 18 4 74 NW 4 13 34 4 0 55 NNW 3 7 24 1 0 36 Variable 0 0 0 0 0 0 Total 14 65 152 268 143 44 686 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 11 Hours of missing stability measurements in all stability classes: 11 11-55

Byron Nuclear Station Period of Record: October - December2003 Stability Class - Moderately Stable - 25OFt-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 3 5 I 15 NNE 0 0 5 0 6 NE 0 0 0 0 1 ENE 0 2 0 0 3 E 0 3 3 0 11 ESE 0 1 5 6 20 SE 0 1 9 14 27 SSE 0 0 S 9 16 S 0 1 15 11 32 SSW 0 0 S 9 16 SW 0 1 16 4 26 WSW 0 0 3 0 7 W 0 1 17 0 20 WNW 0 2 15 1 19 NW 0 0 6 0 10 NNW 0 0 4 0 6 Variable 0 0 0 0 0 Total 1 15 49 113 55 2 235 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: 11 11-56

Byron Nuclear Station Period of Record: October - December2003 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 2 8 NNE 1 2 NE 0 0 ENE 0 0 E 0 2 ESE 2 9 SE 6 13 SSE 7 14 S 6 8 SSW 3 13 SW 10 10 WSW 2 4 W 0 1 WNW 2 2 NW 1 1 NNW 3 9 Variable 0 0 Total 0 5 26 44 21 0 96 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: 11 1-57

BYRON APPENDIX III 2003 REMP SAMPLE RESULTS mn-i

BYRON TABLE OF CONTENTS List of Tables ............................ III-3 111-4

1.0 INTRODUCTION

2.0 LISTING OF MISSED SAMPLES............................................. III-5 3.0 LISTING OF SAMPLE ANOMALIES......................................... III-6 2003 ANALYSES DATA TABLES .......................... III-7 4.0 5.0 LAND USE CENSUS....................................................... III-39 6.0 TLD DATA...............................................................III-43 III-47 7.0 GRAPHS OF DATA TRENDS ..........................

ITT-2

BYRON LIST OF TABLES oTitle 1 Airborne Particulates and Iodine-131 .................................. III-8 2 Airborne Particulates, Quarterly Composites .................................. 111-13 3 Milk .................................. 111-16 4 Fish, Edible Portions .................................. III-25 5 Bottom Sediments ................................ I1-27 6 Vegetables .................................. 111-28 7 Surface Water .................................. III-32 8 Well Water ................................ 111-37 III-3

BYRON

1.0 INTRODUCTION

The following constitutes the 2003 Progress Report for the Radiological Environmental Monitoring Program conducted at the Byron Station, Byron, Illinois. Results of completed analyses are presented in the attached tables.

Data obtained in the program are well within the ranges previously encountered in the program and to be expected in the environmental media sampled.

For all gamma isotopic analyses, spectrum is computer scanned from 80 to 2048 keV. Specifically included are Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr-95, Nb-95, I-131, Ba-140, La-140, Cs-134 and Cs-137. Naturally occurring gamma-emitters, such as K-40 and Ra daughters, are frequently detected but not listed here. The data is reported in the format of x+/-2s;2TPU, where "x" is the significant result, "s" is the one standard deviation counting uncertainty, and TPU is the total propagated uncertainty at the one sigma confidence level.

Locations denoted by a "(C)" after site code refer to control locations.

All concentrations, except gross beta, are decay corrected to the time of collection.

TLD data is provided by Exelon Generation Company.

Deviations fTom Scheduled Sampling and Corrective Actions Taken All samples were collected within the scheduled period unless noted otherwise in the Listing of Missed Samples.

Unusual Environmental Measurements None for 2003.

Sample Type Code Collection Comments Cod Dat HII-4

BYRON 2.0 LISTING OF MISSED SAMPLES Location Expected SapeTp oeCollection Reason Sampl Type CodeDate SW BY-29 01-14-03 No sample; water frozen.

SW BY-29 01-21-03 No sample; water frozen.

SW BY-29 01-28-03 No sample; water frozen.

SW BY-29 02-04-03 No sample; water frozen.

SW BY-29 02-11-03 No sample; water frozen.

SW BY-29 02-18-03 No sample; water frozen.

SW BY-29 02-25-03 No sample; water frozen.

SW BY-29 03-04-03 No sample; water frozen.

SW BY-29 03-11-03 No sample; water frozen.

111-5

BYRON 3.0 LISTING OF SAMPLE ANOMALIES Sample Type Location Collection Reason Code Date A/I BY-22 02-18-03 Collector removed pump for repair due to low vacuum of 16" Hg; placed spare pump #102.

A BY-22 12-29-03 No apparent reason for low reading of 153.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />.

mI-6

BYRON 4.0 2003 ANALYSES DATA TABLES m1I-7

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLDs: Gross Beta = 0.01, 1-131 = 0.07 pCi/m' Units: 10 4 pCil' BY-08 (C) Leaf River Date Volume Gross Date Volume Gross Collected (in') Beta I-131' Collected (n') Beta 1-131' 01-07-03 325 2.8 h 0.3 ; 0.6 -0.1 4- 0.3 ;0.3 07-01-03 286 3.7 4 0.4; 0.8 -

01-14-03 283 1.7 h 0.3; 0.4 07-08-03 287 2.9 A0.3 ;0.6 0.040.3 ;0.3 01-21-03 285 3.2 d 0.4; 0.7 0.1 + OA;0A4 07-15-03 286 1.7 0.3; 0.5 -

01-28-03 283 3.5 4 0.4; 0.7 07-22-03 285 2.6 A0.3; 0.6 0.1 A 0.3 ;0.3 02-04-03 288 3.5 0.4;0.8 0.3 4 0.4 ;0.4 07-29-03 290 2.1 4 0.3 ;0.5 -

02-11-03 284 2.6 4 0.4 ; 0.6 08-05-03 285 2.5 : 0.4; 0.6 -0.5 +/- 0.3 ;0.3 02-18-03 285 1.6 0.3;0.4 -0.2 + 0.5 ;0.5 08-12-03 286 2.3 40.3 0.5 -

02-25-03 284 3.0 4 0.4; 0.6 08-19-03 284 3.6 4 0.4; 0.7 0.2 4 0.3 ;0.3 03-04-03 284 2.9 E0.4; 0.7 -0.41 0.3 ;0.3 08-26-03 287 3.8 +/- 0.4; 0.8 -

03-11-03 286 3.1 L0.4; 0.7 - 09-02-03 284 2.6 +/- 0.4; 0.6 -0.2d 0.5 ;0.5 03-18-03 286 2.8 4 0.4; 0.6 0.3 4 0.4 ;0.4 09-09-03 287 4.0 4 0.4; 0.8 -

03-25-03 283 1.9 h 0.3; 0.5 09-16-03 283 3.7 0.4 ;0.8 -0.2 0.3 ;0.3 1st Qtr. Mean~s.d. 2.7+0.7 0.00-.3 09-23-03 285 2.5 4 0.3; 0.6 -

09-30-03 291 1.9 0.3 ;0.5 -0.2 0.3 ;0.3 3rd Qtr. MeanLs.d. 2.9+/-0.8 -0.1+0.2 04-01-03 284 2.1 w0.3;0.5 -0.6+0.4;0.4 04-08-03 284 2.0 4 0.4; 0.5 -

04-15-03 285 2.6 4 0.3; 0.6 -0.2 + 0.4 ;0.4 10-07-03 279 2.1 40.4;0.5 -

04-22-03 285 2.3 b0.3; 0.5 - 10-14-03 293 4.2 4 0.4 ;0.9 -0.3 + 0.3 ;0.3 04-29-03 285 2.8 + 0.4; 0.6 0.64 0.4 ;0.4 10-21-03 276 3.1 I0.4;0.7 -

05-06-03 285 1.7+A0.3; 0.4 10-28-03 288 2.5 40.3 ;0.6 -0.2+0.3 ;0.3 05-13-03 289 1.5 + 0.3; 0.4 -0.2 A 0.3 ;0.3 11-04-03 284 1.4 d0.3; 0.4 -

05-20-03 289 2.1 L0.3 ; 0.5 11-11-03 286 3.7 4 0.4; 0.8 0.3 +/-0.3 ;0.3 05-27-03 287 1.8 +0.3 ;2.1 0.3 + 0.3 ;0.3 11-18-03 284 2.4+0.4;0.6 -

06-03-03 285 2.1 L0.3 ;0.5 *- 11-25-03 285 2.5 +/- 0.3 ; 0.6 -0.7+/- 0.3 ;0.3 06-10-03 285 2.4 L0.3 ; 0.6 -0.2 +/- 0.3 ;0.3 12-02-03 284 3.2 0.4O; 0.7 -

06-17-03 280 2.4 A 0.3; 0.5 - 12-09-03 284 2.2 4 0.4; 0.5 -0.64-0.3 ;0.4 06-24-03 283 2.2

• 0.3; 0.5 -0.1 0.3 ;0.3 12-16-03 289 2.6E0.4;0.6 -

2nd Qtr. Mean~s.d. 2.2+/-0.4 -0O0.0-4 12-22-03 244 3.9 d 0.4; 0.8 -0.1 +/- 0.3 ;0.3 12-29-03 286 4.0 + 0.4; 0.8 -

4th Qtr. Meanrbs.d. 2.9+/-0.8 -0.3+/-0.4

'Volume based on two week collection period.

III- 8

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLDs: Gross Beta = 0.01, I-131 = 0.07 pCi/rn' Units: 10 4 pCi/rn1 BY-21. Byron Nearsite N Date Volume Giross Date Yolume Gross Collected (m') Beta 1-131' Collected (m') Beta I-131' 01-07-03 325 2A4*0.3 ;0.5 -0.4O0.4;0.4 07-01-03 287 2.6*0.4;0.6 01-14-03 283 2.5*0.3;0.6 - 07-08-03 283 3.0 4 0.4; 0.6 0.3 +/- 0.3 ;0.3 01-21-03 286 2.8 + 0.4 ;0.6 0.2*0.4 ;0.4 07-15-03 286 1.5 4 0.3; 0.4 -

01-28-03 281 3.040O;0.7 - 07-22-03 285 2.3 *0.3;0.5 0.540.3;0.4 02-04-03 288 4.2 + 0.4; 0.9 -0.3

• 0.4 ;0.4 07-29-03 284 2.0 +/- 0.3; 0.5 -

02-11-03 285 2.6*0.4;0.6 - 08-05-03 287 2.8 4 0.4 ;0.6 0.6 4 0.3 ;0.3 02-18-03 285 1.5 0.3 ;0.4 0.1 4 0.3 ;0.3 08-12-03 284 2.6 +/- 03; 0.6 -

02-25-03 284 3.2

• 0.4; 0.7 08-19-03 285 3.1 *0.4 ;0.7 0.4*0.3 ;0.3 03-04-03 284 2.7 *0.4 ; 0.6 -0.1

• 0.3 ;0.3 08-26-03 285 3.7 4 OA; 0.8 -

03-11-03 286 3.6 0.4 ; 0.8 - 09-02-03 286 3.0

• OA; 0.7 O.5

• 0.4 ;0.4 03-18-03 287 2.8 *0.4 ;0.6 0.00.4 ;0.4 09-09-03 287 3.5 4OA; 0.7 -

03-25-03 283 2.3

• 0.4 ; 0.5 09-16-03 283 4.0

• 0.5; 0.9 -0.3

• 0.3 ;0.3 1st Qtr. Mean+s.d. 2.8*0.7 -0.1+0.2 09-23-03 286 2.7

• 0.4; 0.6 -

09-30-03 291 2.1 *0.3; 0.5 -0.1 A 0.3 ;0.3 3rd Qtr. Meants.d. 2.8*0.7 0.3*0.3 04-01-03 285 2.1 *0.3 ;0.5 -0.2*0.3 ;0.3 04-08-03 285 1.9

• 0.3 0.5 -

04-15-03 285 2.5

• 0.3; 0.6 -0.1

• 0.4 ;0.4 10-07-03 277 2.2 4 0.4 ;0.6 -

04-22-03 285 2.1

• 0.3 ;0.5 10-14-03 286 3.9*0.4;0.8 0.9*0.3;0.4 04-29-03 286 1.8 40.3 ;0.5 0.24 0.3 ;0.3 10-21-03 282 3.740.4;0.8 -

05-06-03 286 1.8 + 0.3 0.4 - 10-28-03 288 2.6*0.3;0.6 0.4* 0.3 ;0.3 05-13-03 283 1.2 + 0.3; 0.4 0.3 0.4 ;0.4 11-04-03 285 1.6

• 0.3; 0.4 -

05-20-03 290 1.7 i 0.3; 0.4 - 11-11-03 287 3.6

• 0.4; 0.8 0.3 + 0.3 ;0.3 05-27-03 286 1.6 i 0.3; 1.0 0.1 *0.3 ;0.3 11-18-03 284 2.640.4;0.6 -

06-03-03 281 1.9 40.3;0.5 - 11-25-03 285 2.8

• 0.4 0.6 -0.1 + 0.3 ;0.3 06-10-03 285 2.2

• 0.3 0.5 -0.1 +0.3 ;0.3 12-02-03 285 3.3 0.4; 0.7 -

06-17-03 285 1.9 4 0.3 0.5 - 12-09-03 284 2.6 + 0.4 ;0.6 0.7* 0.3 ;0.3 06-24-03 284 2.1 *0.3 ;0.5 0.0*0.3 ;0.3 12-16-03 290 2.3 *0.4 ;0.6 -

2nd Qtr. Meanis.d. 1.9*0.3 0.0*0.2 12-22-03 245 4.6 0.5; 1.0 0.7*0.3;0.4 12-29-03 285 3.2

• 0.4; 0.7 -

4th Qtr. Mean~s.d. 3.0*0.8 0.5+/-0.4

'Volume based on two week collection period.

III- 9

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLDs: Gross Beta = 0.01, I-131 = 0.07 pCi/rr?

Units: 10 4 pCi/m' BY-22 Byron Nearsite ESE Date Volume Gross Date Volume Gross Collected (m') Beta I-131' Collected (mr') Beta I-131' 01-07-03 325 2.8 0.3;0.6 0.0k 0.4 ;0.4 07-01-03 285 2.3 40.4 ;0.6 -

01-14-03 284 1.9 + 0.3; 0.5 - 07-08-03 283 2.7 a 0.3; 0.6 -0.1 4 0.3 ;0.3 01-21-03 286 2.4 + 0.3; 0.5 0.1 +/- 0.4 ;0.4 07-15-03 288 1.7 0.3 ;0.4 -

01-28-03 281 2.1 d0.3 ;0.5 - 07-22-03 285 2.2 4 0.3; 0.5 0.4 L0.3 ;0.3 02-04-03 288 2.9

• 0.4 ;0.7 0.7 0.4 ;0.4 07-29-03 284 1.8 A 0.3; 0.4 -

02-11-03 285 2.5b0.4;0.6 08-05-03 287 2.6+ 0.4; 0.6 0.1 0.3;0.3 02-18-03 286 1.6 +/- 0.3; 0.4 -0.3 : 0.4 ;0.4 08-12-03 284 2.1 40.3;0.5 -

02-25-03 285 2.6 +/- 0.3; 0.4 08-19-03 285 3.2 + 0.4 ;0.7 -0.2 4 0.3 ;0.3 03-04-03 284 2.3 + 0.4; 0.6 -0.2 : 0.3 ;0.3 08-26-03 285 3.8 *0.4;0.8 -

03-11-03 286 3.1 0.4;0.7 - 09-02-03 286 2.4 *0.4 ;0.6 0.2-0.3 ;0.3 03-18-03 286 3.0 4 0.4; 0.7 -0.3 4 0.4 ;0.4 09-09-03 274 3.6 4 0.4; 0.7 -

03-25-03 284 2.7 4 0.4; 0.6 09-16-03 283 3.8 4 0.4 0.8 0.2 0.3 ;0.3 lst Qtr. Mean+s.d. 2.5+/-0.5 0.0+/-0.4 09-23-03 286 2.6 4 0.3; 0.6 -

09-30-03 290 2.2 4 0.3 0.5 -0.24X0.3 ;0.3 3rd Qtr. Meanrs.d. 2.640.7 0.140.2 04-01-03 284 2.1 a0.3 ;0.5 0.2h0.3 ;0.3 04-08-03 285 1.9 0.3 0.5 04-15-03 285 2.5 b0.3 ;0.6 -0.4+0.4 ;0.4 10-07-03 277 2.1 0.4 ;0.5 -

04-22-03 285 2.0 4 0.3; 0.5 10-14-03 286 3.5 0.4; 0.7 0.1 + 0.3 ;0.3 04-29-03 286 2.1 0.4 ;0.4 0.3 + 0.3 ;0.3 10-21-03 281 3.1 0.4 ;0.7 -

05-06-03 285 1.4l 0.3;0.4 10-28-03 288 2.2 0.3 0.5 0.1 4 0.3 ;0.3 05-13-03 283 1.1 +/-0.3;0.3 -0.0 0.3 ;0.3 11-04-03 285 1.4 0.3; 0.4 -

05-20-03 288 1.8 +/- 0.3; 0.4 - 11-11-03 287 3.8 4 0.4; 0.8 -0.4+/-0.3 ;0.3 05-27-03 288 1.4 A 0.3; 0.8 0.1 4 0.3 ;0.3 11-18-03 284 2.6 + 0.4; 0.6 -

06-03-03 281 2.1 d0.3;0.5 11-25-03 285 2.7 : 0.4; 0.6 0.3+/- 0.3 ;0.3 06-10-03 285 2.1 0.3 ;0.5 -0.240.4 ;0.4 12-02-03 285 3.1 40.4 ;0.7 -

06-17-03 285 1.8 4 0.3; 0.4 12-09-03 284 2.6 +/- 0.4 ;0.6 0.24 0.3 ;0.3 06-24-03 284 1.8 + 0.3; 0.5 0.1 +/- 0.4 ;0.4 12-16-03 290 2.7 h0.4 ;0.6 -

2nd Qtr. Mean*s.d. 1.9+/-0.4 0.0+/-0.2 12-22-03 245 3.5 i 0.4; 0.7 -0.3 . 0.4 ;0.4 12-29-03 261' 4.1 i0.4 ;0.9 -

4th Qtr. Meanss.d. 2.9+/-0.7 -0.0+/-0.3

'Volume based on two week collection period.

' Volume lowv, no apparent reason for low reading of 153.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />.

IlI- 10

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLDs: Gross Beta = 0.01, 1-131 = 0.07 pCirn' Units: 10, pCi/rn' BY-23 Byron Nearsite S Gross Date Volume -Gross Date Volume Date Volumne Gross Collected (m') Beta 1-131' Collected (dn') Beta 1-131' 01-07-03 331 2.5 -0.3 ;0.5 -0.3+ 0.3 ;0.3 07-01-03 290 2.5 4 0.4 ;0.6 -

01-14-03 289 2.5 +/- 0.3; 0.5 - 07-08-03 287 2.8 b0.3;0.6 0.5+0.3;0.3 01-21-03 292 2.6

• 0.4; 0.6 0.1 + 0.3 ;0.3 07-15-03 293 1.7 + 0.3; 0.4 -

01-28-03 286 2.9 A 0.4 ; 0.6 - 07-22-03 290 2.2 0.3;0.5 0.0 0.3;0.3 02-04-03 293 2.9 d0.4; 0.6 0.7k 0.4 ;0.4 07-29-03 289 2.2 +/- 0.3; 0.5 -

02-11-03 290 2.4 0.4; 0.6 - 08-05-03 292 2A.4 0.4; 0.6 -0.3 +/- 0.3 ;0.3 02-18-03 291 1.1 40.3 ;0.3 0.50.4A;0.4 08-12-03 289 2.0 0.3;0.5 -

02-25-03 289 2.8 4 0.3; 0.6 - 08-19-03 290 3.2 +/-0.4 ;0.7 0.4+0.3 ;0.3 03-04-03 289 2.9 40.4 ;0.7 0.04 0.3 ;0.3 08-26-03 290 3.5 + 0.4; 0.7 -

03-11-03 291 2.7d:0.4;0.6 - 09-02-03 291 2.3 b0.4;0.6 -1.0+/-0.4;0.5 03-18-03 291 2.5 +0.3 ;0.6 0.2 0.3 ;0.3 09-09-03 291 3.1 +0.4;0.7  :

03-25-03 289 2.1 +0.4;0.5 - 09-16-03 289 3.9 +0.4 ;0.8 0.1 4 0.3 ;0.3 1st Qtr. Meanis.d. 2.5+/-0.5 0.2+0.4 09-23-03 291 2.5 +/-0.3 ;0.6 -

09-30-03 295 2.1 +/- 0.3 0.5 -0.4 + 0.3 ,0.3 3rd Qtr. Meanss.d. 2.640.6 -0.1+/- 0.5 04-01-03 289 2.0 0.3; 0.5 -0.1I 0.4 ;0.4 04-08-03 290 1.8 4 0.3; 0.5 -

04-15-03 290 A 0.3 0.5 2.4 -0.1O0.4;0.4 10-07-03 283 1.7 0.3; 0.5 04-22-03 290 2.4 4 0.3; 0.5 - 10-14-03 292 3.5 b0.4 ;0.7 0.040.3 ;0.3 04-29-03 291 2.2 4 0.4; 0.5 -0.3 +/- 0.4 ;0.4 10-21-03 287 2.70.4;0.6 -

05-06-03 290 1.3 +/- 0.3; 0.4 - 10-28-03 293 2.2 0.3 ;0.5 0.3 0.3 ;0.3 05-13-03 288 1A + 0.3; 0.4 0.1 b 0.4 ;0.4 11-04-03 290 1.6 0.3; 0.4 -

05-20-03 293 1.7 + 0.3; 0.4 - 11-11-03 292 3.5 ;0.7 A0.4 -0.74 0.3 ;0.3 05-27-03 293 1.4 + 0.3 ;0.8 0.0 4 0.3 ;0.3 11-18-03 289 2.4-0.4;0.6 -

06-03-03 286 2.1 0.3 ;0.5 - 11-25-03 290 A 0.6 2.6 0.4; -0.2 4 0.3 ;0.3 06-10-03 290 2.2 + 0.3; 0.5 0.1 + 0.3 ;0.3 12-02-03 285 3.5 0.4A; 0.8 -

06-17-03 290 1.4 40.3 ;0.4 - 12-09-03 284 2.8 40.4 ;0.6 -0.5+/-0.3 ;0.3 06-24-03 289 2.2 : 0.3 ; 0.5 0.3 + 0.4 ;0.4 12-16-03 290 2.4 0.4;0.6 -

2nd Qtr. Meanis.d. 1.9+0.4 0.010.2 12-22-03 247 3.7 4 0.4; 0.8 -0.8 +/- 0.3 ;0.4 12-29-03 285 3.6 - 0.4; 0.8 -

4th Qtr. Meanbs.d. 2.8+/-0.7 -0.340.4

'Volume based on two week collection period.

III- 11

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLDs: Gross Beta = 0.01, 1-131 = 0.07 pCi/m' Units: IO, pCi/r' BY-24 Byron Nearsite SW ae voum ros at Voum Gros Date volumne Gross Date Volume Gross Collected (in') Beta I-131' Collected (in') Beta 1-131' 01-07-03 326 2.4A 0.3;0.5 0.2*0.3;0.3 07-01-03 285 2.7

• 0.4 ; 0.6 -

01-14-03 284 2.8 +/- 0.3; 0.6 - 07-08-03 283 3.2 0.4; 0.7 0.4* 0.3 ;0.3 01-21-03 287 2.8*0.4; 0.6 -0.1 0.3;0.3 07-15-03 288 1.6 0.3; 0.4 -

01-28-03 281 3.1 *0.4;0.7 - 07-22-03 285 2A. :0.3;0.5 -0.3* 0.3 ;0.3 02-04-03 288 3.7 i 0.4; 0.8 0.4 + 0.3 ;0.3 07-29-03 284 1.9

• 0.3; 0.5 -

02-11-03 285 2.8 +/- 0.4; 0.6 - 08-05-03 287 3.1 *0.4; 0.7 0.1 + 0.3 ;0.3 02-18-03 286 1.4 *0.3 ;0.4 0.440.4 ;0.4 08-12-03 284 1.9

• 0.3 0.5 -

02-25-03 284 3.0

• 0.4; 0.6 - 08-19-03 285 3.3 *0.4 ;0.7 0.540.3 ;0.3 03-04-03 284 3.1 0.4; 0.7 -0.1 0.3 ;0.3 08-26-03 285 A 0.4; 0.7 3.4 -

03-11-03 286 3.2 4 0.4; 0.7 - 09-02-03 286 2.4 A 0.4; 0.6 0.1

• 0.4 ;0.4 03-18-03 286 2.8

• 0.4; 0.6 0.5

• 0.3 ;0.4 09-09-03 285 3.3 4 0.4; 0.7 -

03-25-03 284 2.0

• 0.4; 0.5 - 09-16-03 285 3.8 +/- 0.4; 0.8 0.1 4 0.3 ;0.3 2.8+/-0.6 0.2+0.2 09-23-03 286 2.8

• 0.4 0.6 -

1st Qtr. Meanas.d.

09-30-03 290 1.9

• 0.3 0.5 -0.5 4 0.4 ;0.4 3rd Qtr. Mean-is.d. 2.7+0.7 0.0+/-0.3 04-01-03 284 2.3

• 0.4; 0.5 0.4

• 0.3 ;0.4 04-08-03 285 1.4

• 0.3; 0.4 -

04-15-03 285 2.6 0.3;0.6 -0.3 0.3 ;0.3 10-07-03 279 2.1 *0.4;0.5 -

04-22-03 285 2.0

• 0.3; 0.5 - 10-14-03 287 3.5 4 0.4; 0.7 -0.6* 0.3 ;0.4 04-29-03 286 2.3 0.4A; 0.6 -0.1

• 0.4 ;0.4 10-21-03 282 3.4 40.4 ;0.7 -

05-06-03 285 1.A 0.3 ;0.4 - 10-28-03 288 2.3 *0.3 ;0.5 0.2+0.3;0.3 05-13-03 283 1.4 *0.3; 0.4 -0.3* 0.3 ;0.3 11-04-03 285 1.7 0.3; 0.4 -

05-20-03 288 1.7

• 0.3; 0.4 - 11-11-03 287 3.7 4 0.4; 0.8 -0.1 + 0.3 ;0.3 05-27-03 288 1.8 0.3; 1.2 -0.1 + 0.3 ;0.3 11-18-03 284 2.3 0.4 ;0.6 -

06-03-03 281 1.8 *0.3 0.4 - 11-25-03 285 2.8 0.4; 0.6 0.1 + 0.3 ;0.3 06-10-03 285 2.0

• 0.3; 0.5 0.0* 0.3 ;0.3 12-02-03 285 3.2 *0.4; 0.7 -

06-17-03 285 1.8 *0.3 0.4 - 12-09-03 284 2.6 4 0.4; 0.6 0.5+0.4;0.4 06-24-03 284 2.2 0.3 ;0.5 0.0+ 0.4 ;0.4 12-16-03 290 2.5 40.4;0.6 -

2nd Qtr. Mean+s.d. 1.9*0.4 -0.0+/-0.3 12-22-03 245 4.0 4 0.4 0.8 -0.8 4OA ;0.4 12-29-03 286 2.9 *0.4;0.6 -

4th Qtr. Meanis.d. 2.840.7 -0.1*0.5

' Volume based on two week collection period.

III- 12

BYRON Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 0.05, Cs-137 = 0.06 pCi/n' Other LLDs: Mn-54 =0.01; Fe-59 =0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 =0.025 pCi/ni Units: 10 4 pCi/r' Sample Description and Concentration BY-08 (C) Leaf River 2003 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-2079 BYAP-4243 BYAP-6559,6 BYAP-8018 Volume 3,464 3,714 4,013 3,671 Mn-54 2.3*3.5 ;3.5 -1.8 + 6.8; 6.8 0.4 4.2 ;4.2 5A4 *6.0;6.1 Fe-59 -32.6* 12.6; 13.9 -1.19.7 ;9.7 -7.2

• 6.8 ; 6.9 -24.3

• 12.5; 13.2 Co-58 1.9

• 5.2 ; 5.2 -0.4+3.9 ;3.9 3.9* 3.1 ;3.2 1.044.8 ;4.8 Co-60 -0.6 4 6.0 ; 6.1 3.7

• 5.4; 5.4 1.0* 3.5 ;3.5 4.6*5.7; 5.8 Zn-65 -6.9* 12.4; 12.4 6.4

• 10.7; 10.8 6.3

• 7.7 ; 7.8 8.0

• 14.6; 14.6 Nb/Zr-95 5.7 *6.1; 6.2 5.9 +4.4; 4.6 -6.8 *3.9; 4.1 -5.2 +5.6; 5.7 Cs-134 -3.7 4 7.2 ; 7.2 -0.8 + 6.7 ; 6.7 -0.5

• 3.9 ; 3.9 3.0+4.6 ;4.6 Cs-137 -4.1*5.5 ;5.5 1.0+6.0; 6.0 6.5

• 4.0 ; 4.2 0.5 4-5.5 ;5.5 Ba/La-140 33.1 4 4.6;7.5 16.3 + 3.0;4.2 -12.0

• 3.9;4.5 11.0

• 6.2;6.5 BY-21 Byron Nearsite N 2003 Collection Ist Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-2080 BYAP-4244 BYAP-6561 BYAP-8019 Volume 3,464 3,712 4,006 3,671 Mn-54 3.2 *4.6;4.6 -2.7* 6.1 ;6.1 1.444.3 ;4.3 7.3

• 5.3 ; 5.4 Fe-59 -3.6+ 10.1 ; 10.1 9.1 *9.5 ;9.7 -1.0* 9.0; 9.0 6.3 *:9.3 ; 9.4 Co-58 -3.2 *4.9; 5.0 9.2

• 4.8 ; 5.1 4.9*3.9 ;4.0 -2.9 *4.7; 4.7 Co-60 6.6*4.8 ;4.9 4.5i 5.6; 5.7 -7.4 4 6.9 ; 7.0 6.5

• 7.4 ; 7.5 Zn-65 0.9* 12.2; 12.2 16.8*11.2; 11.6 3.0* 12.5 ; 12.5 -2.4* 10.7; 10.7 Nb/Zr-95 1.1 +5.7; 5.7 3.2 *5.5; 5.6 -0.8 *4.4; 4A -7.3 +5.8; 5.9 Cs-134 -0.1 7.4 ; 7.4 -0.4 *5.1 ;5.1 -1.3*6.1 ;6.1 -1.8* 5.5; 5.5 Cs-137 -3.7+ 6.4; 6.5 6.6*5.3 ;5.4 1.2*3.9;3.9 2.7*5.9; 6.0 Ba/La-140 15.2

• 6.6;7.1 15.0* 6.1;6.7 -16.1

• 6.4;7.0 24.1

• 4.4;6.1 III-13

BYRON Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-1 34 = 0.05, Cs-137 = 0.06 pCi/'r Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 =0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; BalLa-140 = 0.025 pCilmrn Units: 104 pCi/m' Sample Description and Concentration BY-22 Byron Nearsite ESE 2003 Collection Ist Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-208 1 BYAP-4245 BYAP-6562 BYAP-8020 Volume 3,467 3,710 3,991 3,646 Mn-54 9.1 A5.7 ; 5.9 2.744.9 ;4.9 -9.345.5 ;5.7 4.3 44.6;4.7 Fe-59 3.64 11.1; 11.1 1.1 + 6.0 ; 6.0 4.1* 8.2 ; 8.3 5.3* 10.9; 10.9 Co-58 -1.3 *4.0;4.0 1.0*4.7 ;4.7 2.4 4 4.6 ; 4.6 -4.0

• 6.0 ; 6.0 Co-60 -5.0 + 7.7 ; 7.8 7.2*6.4 ;6.5 -2.7 4 7.0 ; 7.0 2.8 + 5.2 ; 5.2 Zn-65 0.9* 12.2; 12.2 1.6*9.1 ;9.1 12.6*9.8; 10.1 8.0* 11.3; 11.4 Nb/Zr-95 -3.4 *5.3 ; 5.3 3.4 *5.1; 5.2 -42.7

• 13.9; 15.9 -6.9 +4.6; 4.7 Cs-134 6.5 i: 6.9 ; 7.0 2.2*5.7 ;5.7 -4.0* 7.0; 7.0 0.9*5.5 ;5.5 Cs-137 8.5*7.2 ;7.3 0.5*5.4;5.4 -4.3* 5.7; 5.8 1.7*5.4 ;5.4 BalLa-140 25.0 4 4.0; 6.0 6.8 + 5.8;5.9 -46.4 4 8.6;11.9 -26.4 4 6.3 ;7.9 BY-23 Byron Nearsite S 2003 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-2082 BYAP-4246 BYAP-6563 BYAP-8021 Volume 3,527 3,775 4,074 3,714 Mn-54 4.5* 6.1 ;6.1 1.845.2 ;5.2 3.04 4.6 ;4.6 7.243.7;4.0 Fe-59 -15.4* 11.6; 11.9 5.6* 6.9; 6.9 2.0* 7.7 ;7.7 3.1 *10.4; 10.4 Co-58 2.9 44.7 ;4.7 -5.2 *E 6.4 ; 6.5 1.6*4.4 ;4.4 -4.7 4 5.8 ; 5.9 Co-60 8.3 *5.4 ;5.6 0.3

• 5.8 ; 5.8 -2.84 5.7 ;5.8 -2.8*8.7;8.7 Zn-65 12.64 14.3 ; 14.5 -2.4 *10.4; 10.4 6.5

• 8.0 ; 8.1 -7.9 *11.1 ; 11.2 Nb/Zr-95 7.3 *4.7; 4.9 -7.4 *4.4;4.6 -5.2 *5.4; 5.5 4.8 *L5.7;5.8 Cs-134 4.2

• 6.9 ; 6.9 -3.3* 6.2 ;6.2 1.6* 3.8; 3.8 4.74 6.1 ;6.2 Cs-137 0.4 4 6.6 ; 6.6 4.7* 6.1 ;6.2 -2.1

• 5.3; 5.3 -1.8h*5.9; 5.9 Ba/La-140 -35.6 4 6.5;9.1 -26.9 4 6.4;8.0 19.4

• 5.9;6.8 24.0

• 4.3 ;6.1 III -14

BYRON Table 2. Airborne Particula' tes Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCi/m' Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr[Nb-95 = 0.01; BaJLa-140 = 0.025 pCi/m3 Units: 10* pCirn?

Sample Description and Concentration BY.24 Byron Nearsite SW 2003 Collection Ist Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-2083 BYAP-4247 BYAP-6564 BYAP-8022 Volume 3,468 3,711 4,005 3,673 Mn-54 7.1 4 5.4 ;5.5 2.1 :h5.9 ;6.0 -2.0 5.8; 5.8 0.344.4 ;4.4 Fe-59 7.3 L9.9; 10.0 -8.0d 8.6; 8.7 2.1 4 10.6; 10.6 9.5 4-7.9 ;8.1 Co-58 -1.5 4- 5.2 ; 5.2 -7.1 4- 4.4 ; 4.6 -3.8 A 5.5; 5.5 .1.5 4 5.4 ;5.4 Co-60 2.3 8.2 ;8.2 -0.4 +/- 7.0 ; 7.0 1.9 4 5.9 ; 5.9 1.2d 6.2 ;6.2 Zn-65 -6.8 h 7.5 ; 7.6 4.0+/- 12.1 ; 12.1 6.7k 8.2; 8.3 -0.8 + 11.1 ; 11.1 Nb/Zr-95 -0.9 45.0; 5.0 6.0 +/-4.4; 4.6 -8.4 412.0; 12.1 -3.9 L4.9; 4.9 Cs-134 3.2d4.9 ;4.9 2.8 4 5.8 ; 5.8 -2.9 + 4.7; 4.7 2A44.4 ;4.4 Cs-137 5.5 4.8 ;4.9 -3.1 +/-6.8 ;6.8 1.91 4 4.4 ;4.4 1.1 + 5.7;5.7 BaILa-140 7.0 +/- 6.2;6.3 -1.4 +/- 5.4;5.4 20.9 :h 3.4 ; 5.1 5.1 A: 5.8;5.9 III -15

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- 1-131 = 1, Cs-134 - 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCilL Units: pCi/L Sample Description and Concentration BY-20 K. Reeverts Dairy Farm Date Collected 01-07-03 02-04-03 03-04-03 04-01-03 Lab Code BYMI-68 BYMI-487 BYMI-917 BYMI-1445 I-131 0.12*0.15 ;0.15 -0.11 40.15 ;0.15 -0.03 *0.14 ;0.14 -0.01 40.13 ;0.13 Mn-54 0.4*2.5 ;2.5 1.242.8 ;2.8 1.9 4 3.8 ;3.8 2.443.3 ;3.3 Fe-59 9.3h*7.9 ; 8.0 0.9*6.1 ;6.1 -4.8 4 8.2; 8.2 -3.7

• 6.4; 6.5 Co-58 -0.9+2.7 ;2.7 -2.3 4 2.6 ;2.6 -3.2

• 4.4 4.4 0.443.2 ;3.2 Co-60 0.1* 3.6; 3.6 -0.7*3.4; 3.4 7.546.1; 6.2 -0.6 4 3.5; 3.5 Zn-65 -1.1 + 9.4 ; 9.4 -7.3 4 6.9; 7.0 -1.0 10.5; 10.5 3.5*7.4; 7.4 Zr/Nb-95 -0.6+/- 2.8 ;2.8 1.1 3.0 ;3.0 1.9 3.5 ;3.5 -3.5* 3.4 ;3.4 Cs-134 1.6*4.3 ;4.3 1.1 43.2 ;3.2 1.6 4.2;4.2 -1.5*3.7;3.7 Cs-137 0.1 *3.2 ;3.2 -1.943.2 ;3.2 -2.7 4.5 4.5 0.2+3.4 ;3.4 Ba-140 14.2* 10.3 ; 10.4 12.24 10.7; 10.8 -10.0* 11.7; 11.8 -10.2

• 9.4; 9.5 La-140 -7.2 +3.9; 4.1 2.4 *2.1 ; 2.2 2.6 43.4 ; 3.4 1.5 *2.8; 2.8 Date Collected 05-06-03 05-20-03 06-03-03 06-17-03 Lab Code BYMI-2310 BYMI-2703 BYMI-2961 BYMI-3270 I-131 -0.14 *0.17 ;0.17 0.17 *0.22 ;0.22 -0.05 4 0.16;0.16 -0.05 4*0.18 ;0.18 Mn-54 0.4+3.1 ;3.1 3.4*3.0 ;3.1 0.6*2.1 ;2.1 -0.4 *2.1 ;2.1 Fe-59 0.446.2 ;6.2 -4.6

• 7.5 ; 7.6 0.7

• 4.6 ; 4.6 1.1

• 5.0;5.0 Co-58 2.2* 3.8 ;3.8 2.1* 4.3 ;4.3 2.3* 2.1 ;2.1 -1.2* 1.9; 1.9 Co-60 -0.7*4.5; 4.5 -0.1 + 4.7; 4.7 -1.2 *2.2; 2.2 -1.2 *2.7; 2.7 Zn-65 -7.5

• 7.6; 7.7 -0.2*10.8; 10.8 2.2

• 5.6; 5.6 -0.6 4 7.0; 7.0 ZrlNb-95 0.8* 2.9 ;2.9 3.2* 3.7 ;3.7 -0.4* 1.8 ; 1.8 0.4* 1.9 ; 1.9 Cs-134 -2.0 *4.0; 4.0 -1.2

• 4.0 ; 4.0 0.5h*2.2 ; 2.2 -0.2 4 2.3 ; 2.3 Cs-137 3.2

• 3.6 ; 3.6 1.74 4.5 ;4.5 0.1 *2.5 ;2.5 2.2 42.3 ;2.3 Ba-140 -1.9*11.9; 11.9 -6.5* 11.5; 11.5 -6.6

• 8.0 ; 8.0 -3.0 4 8.2; 8.2 La-140 6.6 *3.2 ; 3.4 -4.5 45.4 ; 5.4 1.8 *2.3 ; 2.3 -1.2 *2.4 ; 2A III -16

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- I-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCiIL Units: pCitL Sample Description and Concentration BY-20 K. Reeverts Dairy Farm Date Collected 07-01-03 07-15-03 07-29-03 08-12-03 Lab Code BYMI-3611 BYMI-3991 BYMI-4291 BYMI-4659 I-131 -0.10*40.20;0.20 0.01 40.23 ;0.23 -0.01 +0.10;0.10 0.11 0.24 ;0.24 Mn-54 1.2

• 3.7 ; 3.7 -2.2

• 3.5; 3.5 3.0*4.0; 4.0 -2.4 4 2.5; 2.5 Fe-59 4.0+6.4;6.4 2.3 : 6.8 ; 6.8 -4.3 + 7.5 ; 7.5 3.9*5.1 ;5.1 Co-58 -0.3 + 3.6 ; 3.6 -1.4*3.1 ;3.1 -0.3 4 3.2; 3.2 0.8i2.1 ;2.1 Co-60 2.7*4.5; 4.5 -0.4 + 3.2; 3.2 0.3*5.1 ; 5.1 -0.7

• 2.7; 2.7 Zn-65 5.4*8.5; 8.6 1.6?7.1 ; 7.1 3.7*7.5 ; 7.5 -2.3 4 6.5; 6.5 Nb/Zr-95 0.5* 2.9 ;2.9 -1.1 + 3.0 ;3.0 -2.5* 2.7 ;2.7 -0.3 2.3 ;2.3 Cs-i34 -0.4*3.5 ;3.5 -2.0 + 4.0 ; 4.0 -2.2 + 4.5; 4.5 -0.4*2.5 ;2.5 Cs-137 0.8 3.4 ;3.4 4.2+3.8 ;3.8 -2.7*3.8 ;3.8 -1.7 2.5 2.6 Ba-140 0.9 4 10.3 ; 10.3 8.1* 9.9 ; 9.9 -18.9+/- 12.0; 12.3 -3.4*9.5 ;9.5 La-140 1.1 *3.3; 3.3 -2.5 *3.1 ; 3.1 -2.2 *4.6 ; 4.6 1.1 *2.0 ;2.0 Date Collected 08-26-03 09-09-03 09-23-03 10-07-03 Lab Code BYMI-4848 BYMI-5196 BYMI-5427 BYMI-5831 I-131 -0.03 *0.19 ;0.19 -0.10*0.19 ;0.19 0.09 *0.16 ;0.16 -0.14

• 0.18 ;0.18 Mn-54 1.3*3.1 ;3.1 0.9 + 3.9; 3.9 -0.5 + 4.0; 4.0 3.6+ 2.4 ;2.5 Fe-59 12.9*7.9; 8.1 2.3 + 9.5 ; 9.5 -3.8

• 9.4; 9.4 -8.4* 6.0;6.1 Co-58 -0.6

• 3.3; 3.3" 1.4*3.7 ;3.7 0.7*4.2 ;4.2 0.8* 1.9; 1.9 Co-60 2.343.2; 3.2 -3.4 *5.9; 5.9 1.8*4.7; 4.7 1.8*2.3; 2.3 Zn-65 4.9*8.1; 8.1 5.7 + 8.7; 8.8 7.6 *8.7; 8.7 0.2 4 6.0; 6.0 ZrtNb-95 -1.6* 2.9 ;2.9 1.1+4.0 ;4.0 0.8* 3.8 ;3.8 0.8* 2.4 ;2.4 Cs-134 -1.4

• 3.9; 3.9 3.4*4.6 ;4.6 0.7* 4.6 ;4.6 -0.4

• 2.7 ; 2.7 Cs-137 1.1 *3.1;3.1 -0.8 + 3.3; 3.3 3.6* 4.0 ;4.1 0.2* 2.4 ;2.4 Ba-140 4.9* 10.0; 10.0 -6.5

• 13.1 ; 13.1 -28.8 + 13.1 ; 13.7 0.74 8.1 ;8.1 La-140 -1.1 *4.0;4.0 8.2 *4.5 ; 4.6 3.2 *3.6;3.6 -0.2 *2.1; 2.1 111-17

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- 1-131 = 1, Cs-134 = 15; Cs-137 = 18, Da-140 = 60, La-140 = 15 pCifL Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration BY-20 K. Reeverts Dairy Farm Date Collected 10-21-03 11-04-03 12-02-03 Lab Code BYMI-6272 BYMI-6658 BYMI-7209 1-131 -0.18 +0.14 ;0.14 0.26 + 0.14 ;0.15 -0.09 d 0.14 ;0.15 Mn-54 -0.4 4 2.8 ; 2.8 1.0 +3.7 ;3.7 -1.21 2.4 ; 2.4 Fe-59 2.5 4 6.0 ; 6.0 1.8 :E8.2 ;8.2 2.7 5.7;5.7 Co-58 0.2 + 2.5 ; 2.5 0.5 3.3 ;3.3 2.1 +/-2.7 ;2.7 Co-60 -0.5 + 2.9; 2.9 4.0+ 4.6; 4.7 0. 42.8 ; 2.8 Zn-65 3.5 6.4; 6.4 -1.5 +f9.7 ; 9.7 2.6+5.7; 5.7 Zr/Nb-95 -0.94 2.4 ;2.4 2.3+3.5 ;3.6 -1.5 d2.9 ;2.9 Cs-134 -0.5 +/- 2.9 ; 2.9 0.2 b4.6 ;4.6 -0.7 + 2.8 ;2.8 Cs-137 3.0b 2.8 ;2.8 0.8+3.7;3.7 -1.2 4 2.7; 2.7 Ba-140 2.04 9.2; 9.2 0.2 + 13.2; 13.2 7.4 9.0;9.0 La-140 -4.1 +2.5 ; 2.5 0.6 +4.0 ; 4.0 -4.1 +/-2.7 ; 2.8 III -18

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- 1-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCilL Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units: pCilL Sample Description and Concentration BY-26-1 (C) Dennis Herbert Date Collected 01-07-03 02-04-03 03-04-03 04-01-03 Lab Code BYMI-69 BYMI488 BYMI-918 BYMI-1446 I-131 0.07 4k0.16 ;0.16 -0.03 k0.16 ;0.16 -0.02 k 0.14 ;0.14 -0.04 4 0.15 ;0.15 Mn-54 -0.9 +3.4 ;3.4 -1.5 +2.7 ; 2.7 1.8 4.2 ;4.2 1.4k2.1 ;2.1 Fe-59 -4.6 + 7.6 ; 7.6 4.8 k4.7 ;4.8 -4.7kL 9.9; 9.9 1.04 4.6 ;4.6 Co-58 1.1k 3.1 ;3.1 0.3 + 2.2 ; 2.2 1.0k 4.4 4.4 1.4k 1.9; 1.9 Co-60 2.0k 4.7; 4.7 -0.5 + 2.7; 2.7 -5.6 + 5.9; 5.9 0.7k 2.4; 2.4 Zn-65 -1.3 + 8.3; 8.3 -2.5k 6.1; 6.2 -12.7k 11.0; 11.1 2.7k 5.7; 5.8 Zr/Nb-95 -2.8+ 3.7 ;3.7 -0.6k 2.5 ;2.5 0.5k 4.7 ;4.7 0.4O2.3 ;2.3 Cs-134 1.1 k4.2 ;4.2 2.5 + 2.8 ; 2.8 3.0k 5.2 5.2 0.4O2.8 ;2.8 Cs-137 0.1 k3.7 ; 3.7 -0.5k 3.0 ;3.0 -0.5 k 4.2; 4.2 1.6k 2.2 ;2.2 Ba-140 6.44 11.3; 11.3 8.8k9.2 ;9.3 -13.2 k 16.0; 16.1 -10.64 7.0 ; 7.2 La-140 1.5 +3.2 ; 3.2 0.4 2.4 ; 2.4 3.1 5.4 ; 5.5 -0.8 k2.8 ; 2.8 Date Collected 05-06-03 05-20-03 06-03-03 06-17-03 Lab Code BYMI-2311 BYMI-2704 BYMI-2962 BYMI-3271 I-131 -0.04 t 0.16 ;0.16 -0.08 k 0.20; 0.20 0.03 I 0.15 ;0.15 -0.01 k0.23 ;0.23 Mn-54 0.7+ 4.2 ; 4.2 -0.4k4.0;4.0 -0.2 k 1.9; 1.9 -0.8 + 3.7 ; 3.7 Fe-59 -2.14 7.9 ; 7.9 1.5 + 9.2; 9.2 -2.0 k4.2; 4.2 -2.1I8.1 ;8.1 Co-58 -2.9k4.0 ;4.0 -0.3 +/- 3.6 ; 3.6 -2.0kL 1.9; 1.9 -4.4k 3.8 ;3.9 Co-60 6.0k 4.3; 4.4 4.0k 4.8; 4.9 0.5 k2.3; 2.3 -0.6 + 4.5 ; 4.5 Zn-65 -6.6 + 8.9; 9.0 1.1k8.6; 8.6 -1.6 k4.9; 4.9 -7.3 k 9.2; 9.2 Zr/Nb-95 -0.5k 3.0 ;3.0 -0.4+ 3.5 ;3.5 -1.4k 1.8 ;1.8 1.7k 3.0 ;3.0 Cs-134 0.5 k4.1 ;4.1 -4.0 k 4.2 ; 4.3 0.9k 2.3 ;2.3 -1.6kL 3.9; 3.9 Cs-137 0.2 k3.7 ;3.7 1.9k 3.8 ;3.8 -0.8 k2.0 ;2.0 -2.8 k 3.4; 3.4 Ba-140 -23.7k 11.3; 11.8 0.4k 12.8; 12.8 -10.1I7.1 ;7.3 -3.84 11.0; 11.0 La-140 -3.6 k4.8 ; 4.9 3.7 +3.7 ;3.8 2.0 k2.1 ; 2.1 -0.2 k3.8 ; 3.8 III - 19

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- 1-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCilL Required LLDs:

Other LLDs: Mn 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; ZrlNb-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration BY-26-1 (C) Dennis Herbert Date Collected 07-01-03 07-15-03 07-29-03 08-12-03 Lab Code BYMI-3612 BYMI-3992 BYMI-4292 BYMI-4660 I-131 0.15 *0.18 ;0.18 0.05

• 0.19 ;0.19 0.04*0.16 ;0.16 0.09 40.12 ;0.12 Mn-54 0.4 1.8; 1.8 -0.9 + 3.7; 3.7 -2.0* 3.5 3.5 0.843.1 ;3.2 Fe-59 0.2 4.5; 4.5 4.4

• 7.9 ;7.9 -8.6

• 7.4; 7.5 0.3 4 7.2 ;7.2 Co-58 0.7* 1.9; 1.9 1.4 3.6;3.6 0.4*3.1 ;3.1 -1.1 *3.3 ;3.3 Co-60 -1.3

• 2.0; 2.0 -0.5 5.0; 5.0 -0.4 3.3; 3.3 0.7k*2.9; 2.9 Zn-65 0.3 4 6.3; 6.3 1.0*9.0; 9.0 1.1

• 7.9; 7.9 -8.3

• 6.5; 6.6 Nb/Zr-95 -1.3*2.0 ;2.0 4.3* 3.0 ;3.1 2.5* 3.2 ;3.2 -0.44 3.1 3.1 Cs-134 -0.4*2.1 ;2.1 0.7+4.2 ;4.2 1.9 3.8 ;3.8 3.94 3.0 ;3.0 Cs-137 1.12.1 ;2.1 -2.0:t 3.4 3.4 0.3 3.8 ;3.8 -2.7

• 3.3 3.3 Ba-140 10.3*7.3 ;7.5 2.9+ 10.2; 10.2 -7.9 10.8 ; 10.8 3.24 9.3 ;9.3 La-140 1.9 41.9; 1.9 -0.3 +3.8 ; 3.8 2.6 +2.7; 2.7 3.6 *2.42 2.5 Date Collected 08-26-03 09-09-03 09-23-03 10-07-03 Lab Code BYMI-4849 BYMI-5197 BYMI-5428 BYMI-5832 1-131 0.03 *0.18 ;0.18 0.05 *0.21 ;0.21 0.12

• 0.17 ;0.17 0.02 4 0.15 ;0.15 Mn-54 3.3 *2.5 ;2.5 -1.8 + 3.5; 3.5 2.1*3.5 ;3.5 0.5 4 2.0 ; 2.0 Fe-59 0.7* 5.7 ;5.7 7.2

• 7.3 ; 7.4 4.0* 8.3; 8.3 3.14 3.9 ;3.9 Co-58 2.6h*2.6 ; 2.6 0.8*- 3.4 ;3.4 0.1 *3.7 ;3.7 3.04 2.1 ;2.2 Co-60 3.1*3.6; 3.7 -2.4*3.5; 3.5 -1.0

• 5.1 ; 5.1 -1.4*2.5; 2.5 Zn-65 -1.8 *6.5; 6.5 -3.1 *7.3 ; 7.3 2.9* 8.3; 8.3 -5.2

• 4.9; 4.9 Zr/Nb-95 0.7* 2.7 ;2.7 0.9*+ 3.2 ; 3.2 0.4* 2.6 ;2.6 -0.4* 1.9; 1.9 Cs-134 0.4 *3.1 ;3.1 -0.6*4.1 ;4.1 2.5 *4.1 ;4.1 -1.5

• 2.6 ; 2.6 Cs-137 -0.3*3.1 ;3.1 -2.9* 3.9 ;4.0 -0.8

• 3.9 ; 3.9 1.7* 2.4 ;2.4 Ba-140 7.8 4 9.2 ; 9.3 -8.8* 11.4; 11.5 -8.8

• 11.9; 12.0 3.6 4 6.8 ; 6.8 La-140 -4.2 42.7 ; 2.8 1.3 *3.6 ; 3.6 1.7 *4.9 ; 5.0 0.4 *1.9 ; 1.9 I11-20

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- I-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCiIL Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration BY-26-1 (C) Dennis Herbert Date Collected 10-21-03 11-04-03 12-02-03 Lab Code BYMI-6273 BYMI-6659 BYMI-7210 I-131 0.01 *0.17 ;0.17 0.2040.15 ;0.15 0.10 +/-0.15 ;0.15 Mn-54 1.5* 1.8; 1.8 -3.7+4.7 ;4.8 -2.9 +/- 3.5; 3.6 Fe-59 1.8A4.2 ;4.2 6.24 8.3 8.3 -1.2 + 7.8 ; 7.8 Co-58 -0.6*2.1 ;2.1 -2.6*4.1 ;4.1 0.3 *3.4 ;3.4 Co-60 -1.4* 2.3; 2.3 -2.1

• 4.4; 4.4 3.7 *3A ; 3.4 Zn-65 -2.3*5.1 ; 5.1 -18.0* 11.2; 11.5 2.6+8A.; 8.4 Zr/Nb-95 -0.4+2.1 ;2.1 -4.6* 3.7 ;3.8 -2.2* 3.A ;3.4 Cs-134 -0.9 + 2.8 ; 2.8 -1.1 4 4.8; 4.8 -1.5 + 3.7 ;3.7 Cs-137 2.3 *2.0;2.1 2.8 4.3 ;4.3 -0.1 3.4; 3.4 Ba-140 -1.8*7.7 ;7.7 13.4

• 13.2; 13.3 14.1 I 11.3; 11.4 La-140 -2.0 *2.2 ; 2.2 4.1 *3.2;3.2 0.6 43.4 ; 3.4 III -21

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- I-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 - 15 pCi/L Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; ZrJNb-95 = 10 pCi/L Units: pCitL Sample Description and Concentration BY-30 Don Roos Dairv Date Collected 01-07-03 02-04-03 03-04-03 04-01-03 Lab Code BYMI-70 BYMI489 BYMI-919 BYMI-1447 I-131 0.05 40.16 ;0.16 -0.16*0.14 ;0.14 -0.09 4 0.16 ;0.16 0.06*0.14 ;0.14 Mn-54 -2.2

• 4.2; 4.2 -2.5*3.1 ;3.1 1.8 44.2 ;4.2 -2.7

• 2.4; 2.5 Fe-59 13.6 + 8.2; 8.4 -1.6*6.0; 6.0 -3.5

• 9.7; 9.7 -2.35.4 A;5.4 Co-58 -1.6 4 3.3; 3.3 -1.2*2.8 ;2.8 -5.9* 4.2 ;4.3 2.4 *2.2;2.2 Co-60 -1.9 + 4.4; 4.4 2.5 + 3.1 ; 3.2 2.6*5.6; 5.6 -1.2* 2.2; 2.2 Zn-65 -3.5 +/- 10.6; 10.6 -1.9

• 6.5; 6.5 -1 1.9

• 10.3; 10.4 0.7L*6.3; 6.3 Zr/Nb-95 1.3* 3.6 ;3.6 -1.8+2.9 ;2.9 -2.5* 4.8 ;4.8 0.4* 2.3 ;2.3 Cs-134 1.9+3.6 ;3.6 0.5 *3.4 ;3.4 -1.6* 5.1 ;5.1 -0.1* 2.9 ; 2.9 Cs-137 2.3+4.1 ;4.1 -3.5

• 2.8 ; 2.8 2.144.2 ;4.2 -1.0 2.4 ;2.4 Ba-140 -9.0* 10.8; 10.9 3.24 9.8 ;9.8 -7.0413.5; 13.5 -1.5*L 8.0; 8.0 La-140 0.7 *4.0 ; 4.0 1.7 2.4 ; 2.5 0.5 44.6 ; 4.6 -1.8 *2.7 ; 2.8 Date Collected 05-06-03 05-20-03 06-03-03 06-17-03 Lab Code BYMI-2312 BYMI-2705 BYMI-2963 BYMI-3272 1-131 -0.00 40.15 ;0.15 0.18 *0.20 ;0.21 -0.04 4 0.20 ;0.20 0.04

• 0.22 ;0.22 Mn-54 0.14 1.9; 1.9 1.9*3.7 ;3.7 -0.2 + 2.3 ; 2.3 -0.2*E 1.8; 1.8 Fe-59 -1.5

• 4.0; 4.0 6.4 + 8.5 ; 8.6 -2.9 *5.0; 5.0 1.3+4.4;4.4 Co-58 0.4*1.8; 1.8 3.2*4.2 ;4.2 0.6* 2.1 ;2.1 -0.4 *2.1 ;2.1 Co-60 -0.9 *2.4; 2.4 4.9*4.4; 4.5 -2.6 *2.6; 2.6 0.4

• 2.2; 2.2 Zn-65 0.6+5.7; 5.7 -4.6 *8.7; 8.7 -2.2

• 6.6; 6.6 -0.9 + 5.6; 5.6 Zr/Nb-95 1.0* 1.9 ;1.9 -2.6* 4.4 ;4.4 -0.5* 2.5 ;2.5 1.6* 1.8; 1.8 Cs-134 -0.4 2.5; 2.5 -0.1 + 4.4; 4.4 1.3+2.7 ;2.8 1.7* 2.4 ;2A Cs-137 2.2 *2.3 ; 2.3 -0.2

• 4.7 ; 4.7 0.8

• 2.6 ; 2.6 -0.9 +/- 2.0; 2.0 Ba-140 -0.5

• 7.9 ; 7.9 7.6 + 13.2 ; 13.2 6.8+8.4; 8.5 -3.3*8.0;8.0 La-140 1.6 42.0 ; 2.0 2.0 *3.6 ; 3.6 -1.9 +2.3 ; 2.3 1.2 *1.8 ; 1.8 III -22

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- 1-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCilL Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units: pCi/L-Sample Description and Concentration BY-30 Don Roos Dairy Date Collected 07-01-03 07-15-03 07-29-03 08-12-03 Lab Code BYMI-3613 BYMI-3993 BYMI-4293,4 BYMI4661 1-131 0.13 +/-0.22 ;0.22 -0.09 40. 17 ;0.17 0.18 +/- 0.18 ;0.18 -0.02 +/-0.19 ;0.19 Mn-54 -0.3 + 1.8; 1.8 2.3 4 3.6 ;3.6 -0.1 4 1.7; 1.7 -0.0 +/- 1.9; 1.9 Fe-59 3.0 +/-4.0 ; 4.0 -3.447.2 ;7.2 1.0+/-3.7 ;3.7 -3.9+/-5.8 ;5.8 Co-58 -2.2+/- 2.0; 2.0 -0.843.2 ;3.2 0.1 4 1.6; 1.6 0.4 42.2;2.2 Co-60 -0.3+/-1.9; 1.9 3.443.9; 3.9 1.242.0; 2.0 1.1+/-2.8; 2.8 Zn-65 4.345.4; 5.4 -0.6 +/-8.4; 8.4 -1.7 +/-4.8; 4.8 -1.1+/-6.0; 6.0 Nb/Zr-95 0.0+2.0 ;2.0 -1 .8 3.0 ;3.1 -0.5+2.0 ;2.0 -1.12.2 ;2.2 Cs-134 1.1+/-2.1 ;2.1 -2.2 4 3.7 ;3.7 -0.9 + 1.9; 1.9 -0.4 +/- 2.5; 2.5 Cs-137 0.3+/-2.2 ;2.2 0.6+3.7 ;3.7 2.7 +/- 2.1 ;2.1 0.3 +/- 2.6 ;2.6 Ba-140 4.0+/-7.1 ;7.1 3.3+9.5 ;9.5 -1.5+/- 5.7 5.7 -0.9 8.7;8.7 La-140 0.5 +/-1.9 ; 1.9 -0.8 +3.3 3.3 -1.4+/-2.1 ;2.1 -3.8 43.2 3.3 Date Collected 08-26-03 09-09-03 09-23-03 10-07-03 Lab Code BYMI-4850 BYMI-5198 BYMI-5429 BYMI-5833 1-131 0.03 t+/-0.19 ;0.19 0.02 + 0.22 ; 0.22 -0.0640.14 ;0.14 0.14 +/-0.15 ;0.15 Mn-54 -0.6+/-k 1.7; 1.7 -1.5+/-3.6; 3.6 1.3+/-3.9; 3.9 -2.3 +/- 2.2; 2.2 Fe-59 2.5+/-4.4 ;4.4 -0.8 4 7.9 ; 7.9 4.8 + 9.2 ; 9.2 -0.4+/-4.8 ;4.8 Co-58 -0.2+/- 1.8; 1.8 2.743.0 ;3.0 -0.4 i 4.3 ; 4.3 -2.2 4 1.8 ; 1.9 Co-60 0.9 + 2.0 ; 2.0 0.2+/-3.3; 3.3 2.5+/- 4.7; 4.8 -0.2 +/- 2.6; 2.6 Zn-65 4.2 + 5.2; 5.2 1.7+/-7.6; 7.6 0.1 +/- 8.5; 8.5 -2.045.1; 5.1 Zr/Nb-95 0.7+/-h 1.6; 1.6 -0.5+/- 3.7 ; 3.7 -0.3+/- 3.8 ;3.8 -0.1 i 2.2 ;2.2 Cs-134 -0.7+/-2.1 ;2.1 2.14 3.2 ;3.2 0.5+ 3.7 ;3.7 -0.5 +/-2.4; 2.4 Cs-137 -0.3 + 2.3; 2.3 0.5 +/-3.4 ;3.4 -2.5 +/-4.2; 4.2 -0.1 +/- 2.6 ; 2.6 Ba-140 -2.2 + 6.6 ; 6.6 -7.0 +/- 9.0; 9.0 -7.3 + 13.2; 13.2 -3.5 +/- 7.9 ; 7.9 La-140 1.2 +2.0 ; 2.0 -2.1 42.6 ; 2.6 -2.9 +/-4.6 ; 4.6 0.6 41.1 ;1.1 III -23

BYRON Table 3. Milk Collection: Biweekly (May - October)

Monthly (November - April)

ODCM- 1-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Required LLDs:

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb 10 pCi/L Units: pCi/L Sample Description and Concentration BY-30 Don Roos Dairy Date Collected 10-21-03 11-04-03 12-02-03 Lab Code BYMI-6274 BYMI-6660 BYMI-7211 I-131 -0.11 +/-0.17 ;0.17 0.06+0.12 ;0.12 0.08 40.15 ;0.15 Mn-54 -3.0*4.9; 5.0 -2.2*4.0 ;4.0 0.7 *3.3 ;3.3 Fe-59 -4.2 4 9.2 ; 9.2 -4.6+9.0; 9.1 -8.6

• 8.0; 8.1 Co-5 8 2.9*4.3 ;4.3 1.9+ 3.1 ;3.1 -3.6* 3.2 ;3.2 Co-60 0.544.5; 4.5 0.4 - 4.2 ;4.2 2.4 4 2.7; 2.7 Zn-65 0.7 4 7.9; 7.9 -6.1 + 8.5; 8.5 -3.3*: 8.1; 8.1 Zr/Nb-.95 1.9+ 3.6 ;3.6 4.9* 4.2 ;4.2 -1.1* 3.1 ;3.1 Cs-134 1.0*5.5 ;5.5 0.8*4.4 ;4.4 0.8 + 3.8 ; 3.8 Cs-137 1.0 *3.2 ; 3.2 3.9* 3.9 ;4.0 1.5 *3.7 ;3.7 Ba-140 5.4* 13.3; 13.3 -6.6

• 12.5; 12.5 34.8 4 11.3; 12.3 La-140 -2.0 44.3 ; 4.3 3.0 *2.8 ; 2.8 -5.6 *3.1 ; 3.2 III -24

BYRON Table 4. Fish, Edible Portions Collection: Semiannually ODCM-Required LLDs: Mn-54 = 0.13, Fe-59 = 0.26, Co-58 = 0.13, Co-60 = 0.13, Zn-65 = 0.26, Cs-134 = 0.1, Cs-1 37 = 0.1I pCilg wet weight Other LLDs: Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10 ' pCilg wet weight Sample Description and Concentration BY-29 (C) Bvron. Upstream Date Collected 05-01-03 05-01-03 05-01-03 10-02-03 Lab Code BYF-2188 BYF-2189 BYF-2190 BYF-5717 Type Freshwater Drum Comrnon Carp Cornmon Carp Freshwater Drum Mn-54 -0.2

• 1.2; 1.2 -0.0 4 0.8 ; 0.8 -0.3L*0.4 ; 0.4 0.4*0.8 ;0.8 Fe-59 3.842.4 ;2.5 1.2*2.2 ;2.2 0.140.8 ;0.8 0.8*: 1.6; 1.6 Co-58 -0.5* 1.1 ; 1.1 0.2 4: 0.9 ; 0.9 -0.!I 0.4; 0.4 -0.1 40.8;0.8 Co-60 0.2* 1.9; 1.9 0.4 4 0.9 ; 0.9 0.3

• 0.5 ; 0.5 -1.0

• 1.2; 1.2 Zn-65 -2.1 4 2.9 ; 2.9 -1.5*2.7 ;2.7 -0.1 1.3; 1.3 -2.5 + 2.2; 2.2 Zr/Nb-95 -0.7

• 1.3; 1.3 1.0* 0.7; 0.7 0.0 4 0.5 ; 0.5 -1.2 *0.9; 1.0 Cs-134 0.4 1.3; 1.3 0.2 + 0.8 ; 0.8 0.140.4 ;0.4 0.3* 1.0; 1.0 Cs-137 -0.7 4 1.3 ; 1.3 -0.3 +/- 0.9 ; 0.9 0.2

• 0.5 ; 0.5 0.3

• 0.8 ; 0.8 BalLa-140 1.14 0.8 ; 0.9 0.1+/- 1.0 ; 1.0 -0.1

• 0.3 ; 0.3 -7.0+0.8; 1.2 Date Collected 10-02-03 10-02-03 Lab Code BYF-5718 BYF-5719 Type Golden Redhorse Channel catfish Mn-54 -0.7

• 0.9 ; 0.9 0.4* 0.6 ;0.6 Fe-59 -0.74 1.8 ; 1.8 1.14 1.3 ; 1.3 Co-5 8 0.1* 0.6 ; 0.6 -0.2 4 0.7 ; 0.7 Co-60 -0.3

• 0.9 ; 0.9 -0.2 + 0.7 ; 0.7 Zn-65 -0.4 4 1.8; 1.8 0.2:*1.5; 1.5 Zr/Nb-95 -0.7 4 0.7 ; 0.7 0.5+ 0.7 ;0.7 Cs-134 0.8* 1.0; 1.0 -0.1

• 0.7 ; 0.7 Cs-137 -0.340.8;0.8 0.4

• 0.7 ; 0.7 Ba/La-140 1.34 0.8 ;0.8 1.540.7;0.7 m-25

BYRON Table 4. Fish, Edible Portions Collection: Semiannually ODCM-Required LLDs: Mn-54 0.13, Fe 0.26, Co-58 = 0.13, Co-60 = 0.13, Zn-65 0.26, Cs-134 = 0.1, Cs-137 0.1 pCilg wet weight Other LLDs: ZrINb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10 4 pCi/g wet weight Sample Description and Concentration BY-31 Byron. Discharge Date Collected 05-01-03 05-01-03 10-02-03 10-02-03 Lab Code BYF-2191 BYF-2192 BYF-5720 BYF-5721 Type River Carpsucker Channel Catfish Channel catfish Common Carp Mn-54 .0.5 k 0.9 ; 0.9 0.1 +0.5 ;0.5 0.2 + 0.9 ; 0.9 -0.7kL 0.8 ; 0.9 Fe-59 -0.94 2.3 ; 2.3 -0.3 1.1 ;1.1 -1.8 k 1.9 ; 1.9 1.0k2.1 ;2.1 Co-58 0.64 0.8 ; 0.8 0.2+ 0.5  ; 0.5 0.14 0.8 ;0.8 0.1 4 1.0 ; 1.0 Co-60 -0.3 4 1.2 ; 1.2 0.2+ 0.5  ; 0.5 -0.2* 1.1 ; 1.1 -0.3 + 0.8 ; 0.8 Zn-65 0.94 2.2; 2.2 -0.4 E1.4  ; 1.4 1.3k 2.3 ;2.3 -1.7kh 2.3; 2.3 Zr/Nb-95 -0.9k 0.9; 1.0 0.1 k0.5 ;0.5 -0.5 k 0.8 ; 0.8 -0.6 1 0.8 ; 0.8 Cs-134 -0.3 4 1.0; 1.0 -0.1k 0.5  ; 0.5 0.4 k 0.9 ; 0.9 0.1+L 1.1 ; 1.1 Cs-137 -0.9 k 0.9 ; 0.9 -0.3 k 0.5  ; 0.5 0.8k 0.8 ; 0.8 -0.1 k 0.9 ; 0.9 Ba/La-140 -1.0kL 1.0; 1.0 -0.5 + 0.3  ; 0.3 0.2k 1.0; 1.0 -2.8+ 1.0; 1.1 Date Collected 10-02-03 10-02-03 Lab Code BYF-5722 BYF-5723 Type Common Carp Freshwater Drum Mn-54 0.2 A 0.8 ; 0.8 0.1k 1.4 ;1.4 Fe-59 0.1k 1.5 ; 1.5 1.4k2.1 ;2.1 Co-58 -0.3Ek0.7 ; 0.7 0.6 +/- 0.9 ;0.9 Co-60 -0.2kL 0.8 ; 0.8 -1.94 1.5; 1.5 Zn-65 1.4k 1.8; 1.8 1.4 k3.2 ;3.2 Zr/Nb-95 -0.7kh 0.6 ; 0.6 0.3k 1.2; 1.2 Cs-134 0.1 0.7 ; 0.7 0.6k 1.5; 1.5 Cs-137 0.3 4 0.7 ; 0.7 -0.0kL 1.1 ; 1.1 Ba/Lal40 -1.6 A0.9; 0.9 -3.4k 1.4; 1.5 III -26

BYRON Table 5. Bottom Sediments Collection: Semiannually ODCM-Required LLDs: Cs-134 = 0.15, Cs-137 = 0.18 pCilg dry weight Other LLDs: Mn-54 = 0.15; Fe-59 = 0.60; Co-58, Co-60 = 0.10; Zn-65 = 0.60; Zr/Nb-95 = 0.20; Ba/La = 0.60 g dry weight Units: 10,2 pCi/g dry weight Sample Description and Concentration BY-12 Oregon Pool of Rock River Date Collected 05-13-03 10-14-03 Lab Code BYBS-2530 BYDS-6265,6 Mn-54 -0.3 +/- 1.0; 1.0 0.3: 0.7 ; 0.7 Fe-59 0.8h2.2 ;2.2 0.7k 1.4; 1.4 Co-58 -0.4 E0.9 ; 0.9 -1.0 4-0.7 ; 0.7 Co-60 -0.5k 1.1 ; 1.1 0.9 0.9; 1.0 Zn-65 -2.2 I 2.3; 2.3 -0.2b 1.6; 1.6 Nb/Zr-95 0.1 4 0.9 ; 0.9 -2.9 4 0.7; 0.8 Cs-134 1.3k 1.2; 1.2 -0.3 +/- 0.9 ; 0.9 Cs-137 1.5 4- 1.1 ; 1.1 0.6

• 0.8 ; 0.8 Ba/La-140 -1.0 4 0.9; 1.0 -6.1 +/-0.8; 1.1 BY-34 Rock River. Downstream Date Collected 05-13-03 10-14-03 Lab Code BYBS-2531 BYBS-6267 Mn-54 -0.1 0.8 ; 0.8 0.2 b0.6; 0.6 Fe-59 -0.1 +1.5 ;1.5 2.6k 1.3; 1.3 Co-58 -0.2

• 0.7 ; 0.7 OA.40.6;0.6 Co-60 -0.4 + 0.9 ; 0.9 -0.8 + 0.8 ; 0.8 Zn-65 -0.0 + 1.7; 1.7 -0.0 h 1.5; 1.5 Nb/Zr-95 -0.8 L0.7 ; 0.7 -2.1 4-0.7 ;0.8 Cs-134 0.8 + 0.9 ; 0.9 1.1 +/-0.8 ;0.8 Cs-137 0.5 +/- 0.7 ; 0.7 0.2 E0.6 ; 0.6 Ba/La-140 -0.5k 1.0; 1.0 -3.2: 0.7; 0.8 III -27

BYRON Table 6. Vegetation Collection: Annuaily ODCM-Required LLDs: I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; Zr/Nb-95 = 0.01; BatLa-140 = 0.02 pCifg wet weight Units: 10 pCi/g wet weight Sample Description and Concentration BY-Control 14784 Berglund Road Date Collected 08-05-03 08-05-03 Lab Code BYVE-4502 BYVE-4503 Type Beets Beet Greens Mn-54 -0.4E 0.8 ; 0.8 0.9+ 1.0; 1.0 Fe-59 0.1 4- 1.4 ; 1.4 -1.3 4 2.4 ;2.4 Co-58 0.0 E0.6 ; 0.6 -0.34 1.0; 1.0 Co-60 -1.0 +/-0.8 ; 0.8 -1.0k 1.5; 1.5 Zn-65 -1.1 +1.7;1.7 -1.4 4 2.9;2.9 Nb/Zr-95 -0.7b 0.8 ;0.8 -0.9 4 0.8 ;0.9 I-131 -0.1 4 0.6 ;0.6 -0.7 4 0.9 ;0.9 Cs-134 -0.4 + 0.8 ; 0.8 0.2k 1.3; 1.3 Cs-137 -1.0 +/- 0.7; 0.7 0.2 +/- 1.0; 1.0 BaJLa-140 0.2 +/- 0.6 ;0.6 0.1 4 1.0 ;1.0 Date Collected 08-05-03 Lab Code BYVE-4504 Type Rhubarb Greens Mn-54 0.5 4 0.7 ; 0.7 Fe-59 -0.3b+ 1.3; 1.3 Co-58 -0.3 + 0.7 ; 0.7 Co-60 0.3 +/- 0.7 ; 0.7 Zn-65 0.2 + 1.9 ;1.9 Nb/Zr-95 0.1 + 0.7 ;0.7 1-131 -1.3 + 0.7 ;0.7 Cs-134 -0.8+0.8 ;0.8 Cs-137 -0.5 4 0.7 ; 0.7 BatLa-140 0.2 + 0.6 ;0.6 III -28

BYRON Table 6. Vegetation Collection: Annually ODCM-Required LLDs: I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wvet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; Zr/Nb-95 = 0.01; Ba/La-140 = 0.02 pCi/g wet weight Units: lo" pCi/g wet weight Sample Description and Concentration BY-Ouad1 7083 N. RiverRoad Date Collected 08-05-03 08-05-03 Lab Code BYVE-4493 BYVE-4494 Type Turnips Turnip Greens Mn-54 0.2 +/- 0.6 ; 0.6 -0.34 1.3; 1.3 Fe-59 0.1 + 1.3 ; 1.3 1.3*3.1 ;3.1 Co-58 0.3 +/- 0.7 ; 0.7 0.6 +/- 1.3 ; 1.3 Co-60 0.6 + 0.5 ; 0.5 0.1

• 2.1 ; 2.1 Zn-65 -1.1 4 1.6;1.6 -3.7

• 3.6 ;3.6 NblZr-95 0.3 4 0.6 ;0.6 0.2* 1.3 ;1.3 I-131 0.4

• 0.6 ;0.6 0.2* 1.1 ;1.1 Cs-134 0.3

• 0.6 ; 0.6 -1.941.5; 1.5 Cs-137 0.4 *0.6;0.6 -0.2

• 1.5; 1.5 Ba/La-140 -0.0

• 0.6 ;0.6 0.4

• 1.1 ;1.1 Date Collected 08-05-03 Lab Code BYVE-4495 Type Cabbage Mn-54 -0.2 4 0.5 ; 0.5 Fe-59 -1.4

• 1.6; 1.6 Co-58 0.4* 0.7 ;0.7 Co-60 -0.5 4 0.6 ; 0.6 Zn-65 1.1 1.8;1.8 NblZr-95 -0.4

• 0.7 ;0.7 1-131 0.1 *0.7 ;0.7 Cs-134 0.3 4 0.9 ; 0.9 Cs-137 -0.1

• 0.8 ; 0.8 BalLa-140 -0.7

• 1.0 ;1.0 1H1-29

BYRON Table 6. Vegetation Collection: Annually ODCM-Required LLDs: I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; ZrfNb-95 = 0.01; BafLa-140 = 0.02 pCilg wet weight Units: 10 " pCi'g wet weight Sample Descrption and Concentration BY-Quad 2 3485 German Church Road Date Collected 08-05-03 08-05-03 Lab Code BYVE-4496 BYVE4497 Type Beets Beet Greens Mn-54 0.0 +/- 0.6 ; 0.6 0.3 + 0.7 ; 0.7 Fe-59 -0.9+/- 1.1 ; 1.1 -0.3 +/- 1.6; 1.6 Co-58 0.1 +0.5 ;0.5 0.0 + 0.7 ; 0.7 Co-60 -0.4 +/- 0.8 ; 0.8 0.34 1.0; 1.0 Zn-65 1.5 + 1.5 ;1.5 0.3 4 1.8 ;1.8 Nb/Zr-95 -0.3 + 0.6 ;0.6 -0.1 + 0.8 ;0.8 1-131 -0.1 4 0.6 ;0.6 -0.2 +/- 0.7 ;0.7 Cs-134 0.6 +/- 0.7 ; 0.7 -0.1 1.0 ; 1.0 Cs-137 0.0 +/- 0.6 ; 0.6 0.3 +/- 0.9 ; 0.9 Ba/La-140 1.0 + 0.6 ;0.7 -0.5 +/- 0.7 ;0.7 BY-Ouad 3 1417 Brick Road Date Collected 08-05-03 08-05-03 Lab Code BYVE-4498 BYVE-4499 Type Cabbage Potatoes Mn-54 -0.3 + 0.9 ; 0.9 -0.1 +/-0.6; 0.6 Fe-59 0.2+/-2.4 ;2.4 -0.8+/- 1.2; 1.2 Co-58 0.7+ 1.1 ; 1.1 0.0 + 0.6; 0.6 Co-60 -0.5 +/- 1.7; 1.7 0.3 I 0.6 ; 0.6 Zn-65 -3.1 + 2.8 ;2.8 -0.2 A 1.4 ;1.4 Nb/Zr-95 0.5+/- 1.1 ;1.1 0.1 A 0.6 ;0.6 1-131 -0.5 + 0.8 ;0.8 -0.4 i 0.7 ;0.7 Cs-134 0.2+/- 1.2; 1.2 0.2 +/-0.6; 0.6 Cs-137 0.3 + 0.9 ; 0.9 0.6 +/- 0.6 ; 0.6 Ba/La-140 -1.5 +/-1.6 ;1.6 -0.3 + 0.7 ;0.7 III -30

BYRON Table 6. Vegetation Collection: Annually ODCM-Required LLDs: I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; Zr/Nb-95 = 0.01; Ba/La-140 = 0.02 pCi/g wet weight Units: 10o" pCilg wet weight Sample Description and Concentration BY-Ouad 4 6170 Razorville Road Date Collected 08-05-03 08-05-03 Lab Code BYVE-4500 BYVE-4501 Type Cabbage Potatoes Mn-54 0.0 4 0.6 ; 0.6 0.3 4 0.8 ; 0.8 Fe-59 0.1 + 1.6 ; 1.6 -1.8 A 1.8; 1.9 Co-58 0.5 +/- 0.5 ; 0.5 0.0

• 0.8 ; 0.8 Co-60 -0.2 4 0.7 ; 0.7 0.1 + 1.0 ; 1.0 Zn-65 0.3 +/- 1.9 ;1.9 0.3 +/- 2.3 ;2.3 Nb/Zr-95 -0.0 + 0.7 ;0.7 0.3 +/- 0.6 ;0.6 1-131 0.5 + 0.6 ;0.6 0.5 +/- 0.7 ;0.7 Cs-134 -0.6 +/- 0.7 ; 0.7 -0.7* 1.1 ; 1.1 Cs-137 0.1 4 0.8 ; 0.8 1.0 *0.9;0.9 Ba/La-140 0.0 X0.5 ;0.5 -1.3 +/- 1.0 ;1.0 II -31

BYRON Table 7. Surface Water Collection: Monthly composites of weekly collections ODCM- Gross Beta =4, Mn-54 = 15, Fe-59 = 30, Co-58 15, Co-60 = 15, Zn-65 =30, Zr-95 =30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCilL Units: pCi/L Sample Description and Concentration BY-12 Orezon Pool of Rock River. Downstream 2003 Collection January February March Period Lab Code BYSW-507 BYSW-991 BYSW-1480 Gross Beta 3.4+ 1.0; 1.2 3.5*1.1 ;1.2 3.341.0;1.2 Mn-54 -1.0* 2.2; 2.2 -1.1+ 2.5 ;2.5 -2.0* 1.5; 1.6 Fe-59 2.0+ 4.2; 4.2 4.0+/- 5.4; 5.5 0.9+ 3.5; 3.5 Co-58 1.0i 2.3; 2.3 2.7* 2.6 ; 2.6 0.7* 1.6; 1.6 Co-60 1.2+ 2.4; 2.4 -2.7+/- 3.8; 3.9 0.1*2.0; 2.0 Zn-65 0.4 +/-4.2 ;4.2 3.9* 5.6 ; 5.6 -0.9* 4.0; 4.0 Zr-95 3.5+/- 4.9; 5.0 3.7* 6.0; 6.1 0.7+ 3.6; 3.6 Nb-95 0.6* 2.4; 2.4 2.4* 2.7; 2.7 0.8* 1.8; 1.8 Cs-134 -0.842.9 ;2.9 -0.6+/- 3.4 ;3.4 -0.3+ 1.8; 1.8 Cs-137 1.6i2.8 ;2.9 1.2* 2.8; 2.8 0.2*2.0 ;2.0 Ba-140 5.5* 7.9; 7.9 1.6* 10.1 ; 10.1 4.0+ 6.7; 6.7 La-140 -8.1* 3.9; 4.1 5.8* 3.3 ;3.4 1.2*2.1 ;2.1 2003 Collection April May June Period Lab Code BYSW-2503 BYSW-2931 BYSW-3862,3 Gross Beta 3.24 1.0 ;1.1 3.44 1.2; 1.3 3.7

• 0.8 ;0.9 Mn-54 0.5* 2.3 ; 2.3 -1.9* 1.7; 1.7 0.1+ 0.4; 0.4 Fe-59 -2.2* 3.5 ; 3.6 -1.4* 3.9 ; 3.9 -1.1* 0.8; 0.8 Co-58 0.8* 2.4 ; 2.4 0.5*1.6; 1.6 0.2* 0.4; 0.4 Co-60 -2.4* 2.3 ; 2.3 0.24 1.9 ; 1.9 0.1* 0.4 ;0.4 Zn-65 0.4+ 3.7 ; 3.7 -2.9+ 3.3 ; 3.3 -0.7: 0.9; 0.9 Zr-95 1.4* 4.0;4.0 -0.6* 4.2 ; 4.2 -0.6* 0.9; 0.9 Nb-95 -1.3* 2.3 ; 2.3 -1.6* 1.6 ; 1.6 -0.3* 0.4 ; 0.4 Cs-134 0.8* 2.8 ; 2.8 0.5* 1.7 ; 1.7 0.3 0.5 ;0.5 Cs-137 1.7* 2.7; 2.7 -1.242.0 ;2.0 0.2 0.5 ;0.5 Ba-140 8.9+7.5; 7.6 3.6* 6.3 ; 6.3 2.8* 1.7; 1.7 La-140 -4.1*3.3; 3.4 2.1* 1.4 ; 1.4 -0.8* 0.5; 0.5 III -32

BYRON Table 7. Surface Water Collection: Monthly composites of weekly collections ODCM- Gross Beta = 4, Mn-54 = 15, Fe-59 =30, Co-58 = 15, Co-60 = 15, Zn-65 =30, Zr-95 = 30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-12 Oregon Pool of Rock River. Dovwnstream 2003 Collection July August September Period Lab Code BYSW-4317 BYSW-5068 BYSW-5768 Gross Beta 2.6 4 1.4; 1.5 3.2 + 1.0; 1.1 4.4* 1.2; 1.4 Mn-54 -0.5* 2.6; 2.6 0.8

• 1.7; 1.7 0.34 3.8 ;3.8 Fe-59 1.9* 4.2; 4.2 0.2+ 3.2; 3.2 -6.6* 6.6; 6.6 Co-58 -1.2* 1.9; 1.9 0.5* 1.5; 1.5 -1.6* 3.0 ;3.0 Co-60 -0.7: 2.1; 2.1 -1.4+/- 1.9; 1.9 3.1* 3.7 ;3.7 Zn-65 -2.2* 4.5; 4.5 0.9* 3.7; 3.7 3.0+ 5.8; 5.8 Zr-95 -5.9:1 5.6; 5.6 3.1* 3.5; 3.5 4.0* 5.8; 5.9 Nb-95 2.8* 2.7; 2.7 0.5* 1.6; 1.6 -0.9 2.5; 2.5 Cs-134 2.0*3.1 ;3.2 0.6* 1.9; 1.9 -1.3 3.6; 3.7 Cs-137 0.1*2.7 2.7 0.3* 1.9; 1.9 1.2*3.3 ;3.4 Ba-140 -3.3+ 5.0 ;5.0 0.3* 7.6 ;7.6 -17.6* 10.6 ; 10.9 La-140 1.5+/- 3.2; 3.2 -1.3* 1.7; 1.7 3.2+/- 2.8; 2.8 2003 Collection October November December Period Lab Code BYSW-6631 BYSW-7357 BYSW-7726 Gross Beta 3.3*t1.0; 1.1 4.6* 1.0; 1.3 4.04 1.1 ; 1.3 Mn-54 1.0* 1.9; 1.9 -0.74 3.0; 3.0 -1.2* 2.7 ; 2.8 Fc-59 -1.4+ 3.3 ; 3.3 0.44 7.6 ; 7.6 6.2+/- 3.9 ; 4.0 Co-58 -0.2* 1.9; 1.9 -0.54 2.7; 2.7 -1.2* 2.7 ; 2.7 Co-60 0.3* 1.4; 1.4 -0.4* 3.3; 3.3 1.6+ 3.9 ; 3.9 Zn-65 -2.0* 3.8 ; 3.8 -1.1* 5.0; 5.0 -0.4* 4.0 ; 4.0 Zr-95 -0.2* 3.9; 3.9 -3.7* 7.4; 7.5 -1.8* 5.7; 5.7 Nb-95 0.4* 1.7; 1.7 -3.0* 3.4; 3.4 -1.8

• 2.3 ; 2.3 Cs-134 0.4* 2.2 ; 2.2 1.2*3.5 ;3.6 0.2*3.1 ;3.1 Cs-137 0.5* 1.7 ; 1.7 0.3*3.4 ;3.4 0.3* 2.2 ; 2.2 Ba-140 4.4* 7.6 ; 7.7 17.3* 1.1; 11.3 .0.9*+8.3 ; 8.3 La-140 2.8* 2.2 ; 2.2 3.5* 5.2 ;5.3 3.2+/- 3.5 ; 3.5 III -33

BYRON Table 7. Surface Water Collection: Monthly composites of weekly collections ODCM- Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 60, La-140 = 15 pCiIL Units: pCiIL Sample Description and Concentration BY-29 (C) Byron. Upstream 2003 Collection January February March Period Lab Code BYSW-126' NS' BYSW-1481 '

Gross Beta 3.0+ 1.2 ; 1.2 5.2*1.2 ;1.4 Mn-54 0.14 1.3 ; 1.3 -0.3* 1.4; 1.4 Fe-59 -2.84 2.8 ; 2.8 0.8* 3.1 ; 3.1 Co-58 -0.3* 1.2; 1.2 -1.6+/- 1.3 ; 1.3 Co-60 -0.24 1.2; 1.2 2.1+/- 1.8; 1.8 Zn-65 -3.8* 3.2 ; 3.2 -1.4+/- 3.0 ; 3.0 Zr-95 -1.0* 2.7; 2.7 -5.1+/- 2.9;3.0 Nb-95 -2.04 1.3 ; 1.3 1.0* 1.7; 1.7 Cs-134 1.1

• 1.3 ; 1.3 1.1

• 1.8 ; 1.8 Cs-137 -1.0+/- 1.4 ; 1.4 0.5+/- 1.9 ; 1.9 Ba-140 10.944.9 ; 5.1 -6.6*L 6.6 ; 6.7 La-140 -8.0* 1.4 ; 1.8 0.4* 1.7 ; 1.7 2003 Collection April May June Period Lab Code BYSWV-2504 BYSW-2932 BYSW-3864 Gross Beta 2.9* 1.0; 1.1 3.7* 1.1 ;1.2 2.8*1.1 ;1.2 Mn-54 1.14 1.8; 1.8 -0.4* 2.0; 2.0 0.0+ 0.6; 0.6 Fe-59 -1.0+ 3.0 ;3.0 2.0+ 3.0; 3.0 1.0* 1.3; 1.3 Co-58 0.7* 1.4; 1.5 1.2* 1.6; 1.6 -0.1 *0.6; 0.6 Co-60 -0.2* 1.7; 1.7 0.6* 1.5 ; 1.5 0.2* 0.6 ; 0.6 Zn-65 -0.7+ 4.4 ;4.4 -4.7* 4.8; 4.8 -2.4* 1.4; 1.4 Zr-95 1.4* 3.2; 3.2 -0.9* 3.5; 3.5 -1.4* 1.4; 1.4 Nb-95 0.44 1.7; 1.7 -0.5* 2.0 ; 2.0 0.1 *0.6 ; 0.6 Cs-134 -2.1*2.1 ;2.1 1.2* 1.9; 1.9 -0.3 0.7 ;0.7 Cs-137 0.0* 1.7; 1.7 -1.2+2.1 ;2.1 .0.4 0.7; 0.7 Ba-140 -1.16.2 6.2 2.3* 6.6; 6.6 .1.9*2.6 ;2.6 La-140 1.0* 2.0; 2.0 -2.2* 2.2; 2.3 -2.5* 0.7; 0.8

'Results reflect single sample for month collected on 01-07-03; water frozen.

' "NS"= No sample; water frozen.

'Results reflect two samples for month; water frozen on 03-04-03 and 03-11-03.

II -34

BYRON Table 7. Surface Water Collection: Monthly composites of weekly collections ODCM- Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-29 (C) Byron. Upstream 2003 Collection July August September Period Lab Code BYSW-4318 BYSW-5069 BYSW-5769 Gross Beta 2.6+ 1.6; 1.6 3.5

• 1.0 ; 1.1 3.64 1.2; 1.4 Mn-54 -0.3* 1.9; 1.9 0.2* 1.3; 1.3 1.8+ 2.8; 2.8 Fe-59 3.6t 3.4; 3.5 -1.0* 2.7; 2.7 -0.9* 5.0; 5.0 Co-58 1.7+/- 1.8; 1.8 -1.0* 1.3; 1.4 -0.7* 2.9; 2.9 Co-60 1.5* 2.1 ;2.1 0.3+/- 1.6; 1.6 3.0* 3.2; 3.3 Zn-65 -1.4* 2.6; 2.6 -0.3* 3.2; 3.2 -2.4*5.6; 5.6 Zr-95 1.9* 4.1; 4.1 -1.7* 3.5; 3.5 -8.6* 6.5; 6.6 Nb-95 -0.7+/- 2.0; 2.0 0.14 1.5 1.5 -0.7*4 2.7 ; 2.7 Cs-134 -1.6+/-2.4 ;2.4 0.8* 1.7; 1.7 1.4+2.7 ;2.7 Cs-137 -0.7+/-2.0 ;2.0 -0.7* 1.6; 1.6 -2.0* 3.9 3.9 Ba-140 -3.5* 6.9; 7.0 5.0* 5.4 ;5.5 -14.3*9.9; 10.1 La-140 -3.5 + 2.9; 2.9 -2.7+/- 2.2; 2.2 -0.8-+ 3.3; 3.3 2003 Collection October November December Period Lab Code BYSW-6632 BYSW-7358 BYSW-7727 Gross Beta 4.1

• 1.0 ; 1.2 3.5*E 1.0 ; 1.1 4.0* 1.2; 1.4 Mn-54 -0.5+ 1.8; 1.8 0.8* 1.9; 1.9 -0.1+ 1.8 ; 1.8 Fe-59 0.5* 3.6 ; 3.6 -1.3* 4.6 ; 4.6 -0.4+ 3.3 ; 3.3 Co-58 -0.2* 1.8; 1.8 -0.6+ 1.6; 1.6 -0.4+ 1.6; 1.6 Co-60 1.4* 1.8 ; 1.8 0.6+/- 1.5 ; 1.5 0.8*1.9; 1.9 Zn-65 -5.84 4.5 ; 4.6 -4.0* 4.7 ; 4.8 -0.2* 4.0 ; 4.0 Zr-95 -6.1* 4.4;4.5 -0.3+ 3.9; 3.9 -0.84 3.4; 3.4 Nb-95 -0.3* 1.9; 1.9 -0.4+ 1.9; 1.9 -1.94 1.6; 1.7 Cs-134 1.3*2.5 ;2.5 -1.0* 1.9 ; 1.9 -0.9*2.1 ;2.1 Cs-137 -0.5*2.1 ;2.1 -0.1*2.1 ;2.1 -1.9+2.1 ;2.1 Ba-140 -0.4*7.1 ;7.1 5.8* 6.9; 6.9 3.1*6.8; 6.8 La-140 0.3* 2.0 ; 2.0 -1.8* 2.3 ; 2.4 1.1* 2.2 ; 2.2 III -35

BYRON Table 7. Surface Water Collection: Quarterly composites of weekly collections Required LLD: H-3 = 200 pCi/L Units: pCi/L 2003 Sample Description and Concentration Collection Period Lab Code Tritium BY-12 Oregon Pool of Rock River. Downstream Ist Quarter BYSW- 1459 192491;95 2nd Quarter BYSW- 3667 251+/-90;96 3rd Quarter BYSW- 5749' 1,9434 147;302 4th Quarter BYSW_ 7718 1,3934 131 ;231 BY-29 (C) Byron. Upstream 1Ist Quarter BYSW- 1460 -124 82 ;82 2nd Quarter BYSW- 3668 75+ 82 ;83 3rd Quarter BYSW- 5750 77T 83 ;84 4th Quarter BYSW- 7719 31 81 ;81

'Tritium repeated with a result of 1,894+1-147 pCi/L.

III -36

BYRON Table 8. Well Water Collection: Quarterly ODCM-Required LLDs: H-3 = 200, Mn-54 = IS, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCiIL Units: pCi/L Sample Description and Concentration BY-14-1 3200 North German Church Road Date Collected 01-14-03 04-15-03 07-15-03 10-14-03 Lab Code BYWWV-222 BYWW-1918 BYWW-3994 BYVY-6017 H-3 76* 68 ; 69 454 84;85 -12* 84;84 554*84 ;84 Mn-54 1.243.1 ;3.1 1.0 *3.4 3.4 -0.6

• 1.4 1.5 -0.4

• 1.7; 1.7 Fe-59 1.4 *5.2 5.2 2.0 *5.2 5.2 -2.9 4 3.0; 3.0 -0.4 43.5 3.5 Co-58 -1.7 3.0 3.1 -2.2 *3.0 ;3.3 -0.2*1.1 ;1.9 0.6*1.7; 1.8 Co-60 0.3 *3.1 ;3.0 2.8 *3.3 3.0 -1.2*1.9; 1.1 -0.4

• 1.8 1.7 Zn-65 -3.4 *7.3 7.4 -7.9 47.8; 7.9 5.643.9 ;4.0 -0.4 44.1 ;4.1 Zr-95 -5.4*6.1 ;6.1 -3.6 *7.0 ;7.1 1.3 *3.6; 3.6 -1.4

• 3.9 3.9 Nb-95 1.1 2.9;2.9 -2.4 *3.8;3.8 0.4 *1.5; 1.5 -1.1 +2.0;2.0 Cs-134 0.3 *3.4; 3.4 -0.2 4.4 ;4.4 -0.7 1.7 1.7 -0.7 *1.8 ; 1.8 Cs-137 -2.3 43.5 ; 3.5 -0.9 4.0 ;4.0 -0.5

• 1.8; 1.8 0.2 *1.6; 1.6 Ba-140 -8.4 *9.8; 9.9 -3.9 4 10.6; 10.7 4.4 *5.9; 5.9 -4.4 *6.0; 6.0 La-140 .14.3 *4.6 ;5.0 -0.6*5.0 ;5.0 -1.0* 1.7 ;1.7 0.4 2.3 ;2.3 BY-18 McCoy Farmstead Date Collected 01-14-03 04-15-03 07-15-03 10-14-03 Lab Code BYWW-223 BYWW-1919 BYWW-3995 BYWNV-6018 H-3 -62* 63;64 1204 88;89 474 87 ;87 45* 83 ;83 Mn-54 -2.3 *3.3; 3.3 -1.5 *2.7 ;2.7 -0.8

• 1.6 ; 1.6 3.5 *2.9 ; 2.9 Fe-59 5.2 45.1 ;5.2 0.6 *5.6;5.6 -0.4 *3.7 ; 3.7 4.6 *5.3 ; 5.3 Co-58 -0.0 42.9 ;3.6 0.7 *3.0 ;3.8 0.8 41.9 ; 1.9 -0.7 *2.3; 1.5 Co-60 0.8 43.6 ;2.9 0.8 *3.8 3.0 0.2 *1.9; 1.9 -0.1 +1.5 ;2.3 Zn-65 -3.5 *6.4 ; 6.4 -5.5 *7.3 7.3 -2.4 43.8; 3.8 -2.7 *6.1 ;6.1 Zr-95 -1.4 7.2; 7.2 2.1 *6.2 ;6.2 -0.1 I3.7 ;3.7 6.8 +5.8 ; 5.9 Nb-95 -3.3 43.0;3.0 -5.8 *3.6; 3.7 0.9 *1.7; 1.7 -2.4 *3.4; 3.4 Cs-134 -2.8 *4.2 ;4.2 -0.2 *3.2 3.2 0.7 *1.7;1.7 -2.5 *3.0;3.1 Cs-137 -2.4 43.0 ; 3.0 0.0 3.6 ;3.6 1.1 *1.8; 1.8 -1.4 *3.4; 3.4 Ba-140 -3.3 4 10.3; 10.3 -7.3

• 10.5; 10.6 -4.9 *6.9; 6.9 7.4 *8.1 ; 8.2 La-140 0.5 *3.9 ;3.9 -2.6*4.2 ;4.2 -5.2 *2.3 ;2.4 -2.7*3.7 ;3.7 III -37

BYRON Table 8. Well Water Collection: Quarterly ODCM-Required LLDs: 11-3 = 200, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-32 Ron Wolford Date Collected 01-14-03 04-15-03 07-15-03 10-14-03 Lab Code BYWW-224 BYWW-1920 BYWW-3996,7 BYWW-6019 H-3 -37+ 65 ;65 151 A 73 ; 75 49+/- 61 ;62 120* 87;88 Mn-54 -0.3 42.2 ;2.2 -0.9 *1.4; 1.4 -0.6 +1.3; 1.3 1.3 *2.0;2.0 Fe-59 2.0 *4.7; 4.8 6.0 43.4 ;3.5 -0.5 *2.3;2.3 1.7 *4.5; 4.5 Co-58 -2.3 *2.6; 2.5 -1.0 + 1.6; 1.8 0.7 41.3 ;1.6 -0.8

• 1.9; 2.0 Co-60 0.2 42.5; 2.6 0.1 *1.8 ; 1.6 0.1 *1.6 ; 1.3 0.1 *2.0 ; 1.9 Zn-65 -1.5 *4.9;4.9 -1.6 *4.0;4.0 -0.7 *2.6 ; 2.6 -3.8 *4.7;4.7 Zr-95 3.0 44.9; 5.0 -1.8 *3.5;3.5 -1.2 *2.8;2.9 2.9 *4.6 ; 4.7 Nb-95 -1.1 *2.7;2.7 -0.2 4*1.9; 1.9 -1.2 +1.3; 1.4 -2.1 +/- 1.9; 2.0 Cs-134 -0.5 *3.1 ;3.1 0.0 +2.2; 2.2 0.3 *1.5 ; 1.5 -0.5 *2.3 ;2.3 Cs-137 1.5 *2.6 ; 2.6 -2.4*1.8; 1.8 0.0*1.5; 1.5 0.2 42.1 ; 2.1 Ba-140 -5.0 47.5 ; 7.6 -2.2 *6.6 ; 6.6 -5.5 *4.6 ; 4.7 4.0 47.7 ; 7.7 La-140 -5.8 43.0 ;3.1 0.3 *2.4 ;2.4 -0.4 4 1.7; 1.7 0.7 *2.2 ;2.2 111-38

BYRON 5.0 MILCH ANIMALS. NEAREST LIVESTOCK, AND NEAREST RESIDENCES CENSUSES m-39

BYRON MILCH ANIMALS CENSUS, 2003 Cows Being Milked BY-26-1 Dennis Herbert 12.0 miles, Sector A 46 10% Pasture 90% Feed BY-20 K. Reeverts Dairy Farm 1.9 miles, Sector C 30 0% Pasture 100% Feed BY-30 Don Roos Dairy 5.1 miles, Sector G 35 0% Pasture 100% Feed Census conducted by W. Mueller on August 25, 2003 III-40

BYRON NEAREST LIVESTOCK CENSUS, 2003 Nearest livestock of the Byron Station within a 6.2 mile radius.

Sector Direction Distance Livestock No.

A N 5.0 miles 22 Beef Cattle B NNE 1.5 miles 8 beef cattle C NE 1.9 miles 5 Beef Cattle D ENE 3.0 miles 65 Cattle E E 1.4 miles 3 Cattle, 1 hog, 5 horses F ESE 1.5 miles 60 beef cattle G SE 5.5 miles 80 sheep H SSE 3.2 miles 308 Cattle J S 0.6 miles 150 beef cattle, 80 hogs K SSW 2.2 miles 40 cattle L SW 3.2 miles 38 Cattle M WSW 1.7 miles 300 beef cattle; 200 hogs N W 2.5 miles 80 Beef Cattle P WNW 3.5 miles 50 Beef Cattle Q . NW 3.8 miles 150 beef cattle R NNW 1.4 miles 50 beef cattle Census conducted by W. Mueller on August 25,2003 111-41

BYRON NEAREST RESIDENCE CENSUS, 2003 Nearest resident of the Byron Station within a 6.2 mile radius.

Sector Direction Distance A N 2.7 miles B NNE 1.0 miles C NE 1.2 miles D ENE 1.3 miles E E 1.3 miles F ESE 1.5 miles G SE 0.8 miles H SSE 0.6 miles J S 0.5 miles K SSW 0.6 miles L SW 0.8 miles M WSW 1.7 miles N W 1.8 miles p WNW 0.8 miles Q NW 1.0 miles R NNW 1.3 miles Census conducted by W. Mueller on August 25,2003 III-42

BYRON 6.0 TLD DATA*

• TLD Data provided by Exelon Nuclear.

m-43

Exelon Nuclear Environmental Site Report for Byron Gamma Radiation Measured in mR byTLDs Site Description Quarter 1 Quarter 2 Quarter 3 Quarter 4 2003 2003 2003 2003 I. INDICATOR LOCATIONS

a. Air Samplers BY-01-1 BYRON 19.0 22.0 21.0 20.0 BY-01-2 BYRON 22.0 22.0 18.0 19.0 BY-04-1 PAYNES PT. 26.0 27.0 22.0 24.0 BY-04-2 PAYNES PT. 26.0 25.0 22.0 23.0 BY-06-1 OREGON 21.0 21.0 18.0 21.0 BY-06-2 OREGON 20.0 23.0 18.0 19.0 BY-21-1 NEARSITE N 19.0 21.0 17.0 19.0 BY-21-2 NEARSITE N 19.0 21.0 18.0 19.0 BY-22-1 NEARSITE ESE 24.0 26.0 24.0 27.0 BY-22-2 NEARSITE ESE 25.0 26.0 22.0 26.0 BY-23-1 NEARSITE S 28.0 26.0 22.0 26.0 BY-23-2 NEARSITE S 25.0 25.0 24.0 23.0 BY-24-1 NEARSITE SW 25.0 25.0 23.0 23.0 BY-24-2 NEARSITE SW 25.0 22.0 24.0 22.0 Air Sampler Mean S. D. 23.1 +/-3.1 23.7 +/-2.2 20.9 +/-2.6 22.2 +/-2.8 Annual Air Sampler Mean i S.D. 22.5 +/-2.8

b. Inner Ring (100 Series)

BY-101-1 21.0 21.0 19.0 18.0 BY-101-2 21.0 21.0 17.0 19.0 BY-102-1 28.0 27.0 26.0 25.0 BY-1 02-2 28.0 28.0 25.0 28.0 BY-1 03-1 26.0 24.0 24.0 25.0 BY-1 03-2 26.0 26.0 23.0 27.0 BY-1 04-1 26.0 25.0 24.0 26.0 BY-104-2 28.0 29.0 23.0 29.0 BY-1 05-1 28.0 28.0 25.0 24.0 BY-105-2 28.0 26.0 26.0 25.0 BY-106-1 27.0 26.0 25.0 25.0 BY-106-2 26.0 26.0 23.0 24.0 BY-107-1 27.0 29.0 26.0 26.0 BY-107-2 29.0 30.0 27.0 29.0 BY-108-1 26.0 29.0 25.0 27.0 BY-108-2 26.0 24.0 21.0 24.0 BY-1 09-1 26.0 26.0 22.0 26.0 BY-109-2 26.0 24.0 24.0 24.0 BY-110-1 25.0 25.0 23.0 22.0 BY-110-2 27.0 27.0 25.0 23.0 BY-111-3 26.0 28.0 23.0 23.0 BY-111-4 24.0 26.0 22.0 23.0 111-44

Exelon Nuclear Environmental Site Report for Byron TLDs Gamma Radiation Measured In mR by Quarter 4 Quarter 1 Quarter 2 Quarter 3 Site Description 2003 2003 2003 2003

b. Inner Ring (100 Series) 22.0 27.0 27.0 25.0 BY-1 12-3 22.0 23.0 25.0 26.0 BY-112-4 21.0 23.0 25.0 27.0 BY-113-1 19.0 22.0 21.0 24.0 BY-113-2 17.0 22.0 23.0 23.0 BY-1 14-1 22.0 23.0 25.0 25.0 BY-114-2 22.0 22.0 23.0 24.0 BY-1 15-1 21.0 25.0 23.0 24.0 BY-i1 5-2 20.0 23.0 23.0 24.0 BY-I 16-i 20.0 21.0 23.0 24.0 BY-1 16-2 22.6 +/-2.5 24.2 +/-2.6 25.4 t2.2 25.7 +/-2.2 Inner Ring Mean +/- S.D.

24.5 +/-2.6 Annual Inner Ring Mean +/- S.D.

c. Outer Ring (200 Series) 19.0 24.0 25.0 24.0 BY-201-3 22.0 26.0 26.0 25.0 BY-201-4 20.0 20.0 23.0 23.0 BY-202-1 22.0 26.0 25.0 26.0 BY-202-2 16.0 18.0 22.0 21.0 BY-203-1 21.0 23.0 24.0 23.0 BY-203-2 17.0 20.0 23.0 24.0 BY-204-1 22.0 25.0 27.0 26.0 BY-204-2 24.0 24.0 27.0 27.0 BY-205-1 18.0 24.0 22.0 24.0 BY-205-2 22.0 28.0 28.0 27.0 BY-206-1 22.0 24.0 23.0 26.0 BY-206-2 25.0 27.0 25.0 27.0 BY-207-1 23.0 24.0 27.0 25.0 BY-207-2 23.0 26.0 29.0 25.0 BY-208-1 23.0 27.0 27.0 27.0 BY-208-2 23.0 25.0 27.0 27.0 BY-209-1 23.0 26.0 28.0 26.0 BY-209-4 22.0 26.0 26.0 26.0 BY-210-3 22.0 25.0 24.0 25.0 BY-210-4 23.0 27.0 26.0 27.0 BY-211-1 22.0 25.0 26.0 26.0 BY-211-4 24.0 26.0 27.0 27.0 BY-212-1 25.0 30.0 28.0 28.0 BY-212-4 20.0 24.0 28.0 27.0 BY-213-1 24.0 31.0 28.0 27.0 BY-213-4 21.0 25.0 26.0 25.0 BY-214-1 20.0 24.0 27.0 23.0 BY-214-4 III45

Exelon Nuclear Environmental Site Report for Byron Gamma Radiation Measured in mR by TLDs Site Description Quarter 1 Quarter 2 Quarter 3 Quarter 4 2003 2003 2003 2003 Outer Ring (200 Series)

BY-215-1 27.0 25.0 23.0 25.0 BY-215-4 28.0 28.0 22.0 27.0 BY-216-1 28.0 27.0 24.0 29.0 BY-216-2 22.0 24.0 22.0 25.0 Outer Ring Mean i S.D. 25.9 +/-2.1 25.6 +1.7 21.8 +/-2.1 25.2 t2.6 Annual Outer Ring Mean +/- S.D. 24.6 +/-2.7 INDICATOR LOCATION MEAN +/- S.D. 25.2 +/-2.5 25.3 +/-2.1 22.0 t2.4 24.2 +/-2.8 Annual INDICATOR MEAN +/- S.D. 24.2 +/-2.8 II. CONTROL LOCATIONS BY-08-1 LEAF RIVER 22.0 19.0 18.0 20.0 BY-08-2 LEAF RIVER 20.0 19.0 17.0 21.0 CONTROL LOCATION MEAN +/- S.D. 21.0 +/-1.4 19.0 +/-0.0 17.5 +/-0.7 20.5 +/-0.7 Annual CONTROL LOCATION MEAN +/- S.D. 19.5 +/-1.4 III46

BYRON 7.0 GRAPHS OF DATA TRENDS m47

Air Particulates - Gross Beta BY-08 (C) Leaf River 10.0 m

N 9

let CD 0.0 1 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 1. Continuous collection with weekly exchange of particulate filter.

BY-21 Byron Nearsite N 10.0 8.0 1 6.0 G

C 4

'4 9

VO 4.0 0.0 1 I 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 2. Continuous collection with weekly exchange of particulate filter.

11-48

Air Particulates - Gross Beta BY-22 Byron Nearsite ESE 10.0 8.0 6.0 9

I22 4.0 2.0 0.0 1-01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 3. Continuous collection with weekly exchange of particulate filter.

BY-23 Byron Nearsite S M

E C,

0.

No 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 4. Continuous collection with weekly exchange of particulate filter.

M-49

Air Particulates - Gross Beta BY-24 Byron Nearsite SW 10.0 8.0 E 6.0 Q 4.0 2.0 0.0I 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 5. Continuous collection with weekly exchange of particulate filter.

Hi-so

Surface Water - Gross Beta BY-12 Oregon Pool of Rock River, Downstream 10.0 8.0 6.0 r-,

a.

4.0 2.0 0.0 4-01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 6. Monthly composites of weekly collections.

BY-29 (C) Byron, Upstream 14.0 T 12.0 +

10.0 +

No samples; No samples; No samples; 8.0 1 river frozen. river frozen. river frozen.

c, C.

4.0 2.0 4-0.0 ; i i v 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 7. Monthly composites of weekly collections.

m-51

Surface Water-Tritium BY-12 Oregon Pool of Rock River, Downstream 3900 3500 3100 2700 2300 U 1900 1500 1100 700 300 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 8. Quarterly composites of weekly collections.

BY-29(C) Byron, Upstream 500 -r 400 +

300 4-U 200-a.

100 +

0

-100_ I I I I I 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 9. Quarterly composites of weekly collections.

11I-52

Well Water-Tritium BY-14-1 3200 N. German Church Road 400 300 200 C.,

a.

100 7 .

0

-100

-200 01-0 1-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 1D. Quarterly collections.

BY-18 McCoy Farmstead Well 500 400 300 i 200 a.

100

-100 _ I I I I 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 11. Quarterly collections.

M-53

Well Water-Tritium BY-32 Wolford Well 500 400 300 E 200 100 -~ \/

0-I-

\\'-\g \

-100-01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 12. Quarterly collections.

11I-54

BYRON APPENDIX IV INTERLABORATORY COMPARISON PROGRAM RESULTS IV-1

Environmental, hc.

• Mdwest Laboratory ar Albgheny Techndoogies Co.

70OLandwet Poaid*NohbrolL 6=ex (547)564700 tao 4)564.45?tr APPENDIX IV INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Environmental Inc., Midwest Laboratory participates Inintercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported In Appendix A. TLD Intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A Is updated four times a year, the complete Appendix is Included In March, June, September and December monthly progress reports only.

January, 2003 through December, 2003 IV-2

Appendix A Interlaboratorv Comparison Program Results Environmental, Inc., Midwest Laboratory, formerly Teledyne Brown Engineering Environmental Services Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of it's quality control program In December 1971. These programs are operated by agencies which supply environmental type samples containing concentrations of radionuclides known to the issuing agency but not to participant laboratories. The purpose of such a program is to provide an Independent check on a laboratory's analytical procedures and to alert it of any possible problems.

Participant laboratories measure the concentration of specified radionuclides and report them to the issuing agency. Several months later, the agency reports the known values to the participant laboratories and specifies control limits. Results consistently higher or lower than the known values or outside the control limits indicate a need to check the instruments or procedures used.

Results in Table IV-1 were obtained through participation in the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada.

The results in Table IV-2 were obtained for Thermoluminescent Dosimeters (TLDs), via Intemational Intercomparison of Environmental Dosimeters under the sponsorships listed in Table A-2. Results of.

Internal laboratory testing Is also listed.

Table IV-3 lists results of the analyses on in-house spiked samples for the past twelve months. All samples are prepared using NIST traceable sources. Data for previous years available upon request.

Table IV4 lists results-of the analyses on in-house blank' samples for the past twelve months. Data for previous years available upon request. request.

Table IV-5 list results of the in-house 'duplicate' program for the past twelve months. Acceptance is based on the difference of the results being less than the sum of the errors. Data for previous years available upon request.

The results in Table IV-6 were obtained through participation in the Mixed Analyte Performance Evaluation Program.

The results in Table IV-7 were obtained through participation in the Environmental Measurement Laboratory Quality Assessment Program.

Attachment A lists acceptance criteria for 'spiked' samples.

Out-of-limit results are explained directly below the result.

IV-3

Attachment A ACCEPTANCE CRITERIA FOR 'SPIKED- SAMPLES LABORATORY PRECISION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSESa One standard deviation Analysis Level for single determination Gamma Emitters 5 to 100 pCi/liter or kg 5.0 pCi/liter

> 100 pCi/liter or kg 5% of known value Strontium_89b 5 to 50 pCi/liter or kg 5.0 pCi/liter

> 50 pCiAiter or kg 10% of known value Strontium-90b 2 to 30 pCi/liter or kg 5.0 pCi/liter

> 30 pCi/liter or kg 10% of known value Potassium-40 > 0.1 gAiter or kg 5% of known value Gross alpha 20 pCi/liter 5.0 pCi/liter

> 20 pCi/liter 25% of known value Gross beta 100 pCi/liter 5.0 pCi/liter

> 100 pCi/liter 5% of known value Tritium 4,000 pCi/liter Is = (pCi/liter) =

169.85 x (known) 0 933

> 4,000 pCi/liter 10% of known value Radium-226,-228 0.1 pCi/liter 15% of known value Plutonium 0.1 pCi/liter, gram, or sample 10% of known value Iodine-131, 55 pCi/liter 6.0 pCi/liter Iodine-129b > 55 pCilliter 10% of known value Uranium-238, 35 pCi/liter 6.0 pCi/liter Nickel-63b > 35 pCi/liter 15% of known value Technetium.99b Iron-55b 50 to 100 pCi/liter 10 pCiliter

> 100 pCi/liter 10% of known value Othersb 20% of known value

' From EPA publication, Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-60014-81-004.

c Laboratory limit.

IV-4

TABLE IV-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)'.

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result' Result' Limits STW-973 02/17/03 Sr-89 17.0 i 0.5 15.9 +/- 5.0 7.2 - 24.6 STW-973 02117/03 Sr-90 8.9 +/-k0.3 9.0 +/- 5.0 0.4 - 17.7 STW-974 02117103 Ba-1 33 14.5 +/- 0.9 19.5 +/- 5.0 10.8 - 28.2 STW-974 02117/03 Co-60 37.5 +/- 0.9 37.4 +/- 5.0 28.7 - 46.1 STW-974 02/17103 Cs-134 18.2 i 0.6 17.8 +/- 5.0 9.1 - 26.5 STW-974 02117103 Cs-137 42.7 +/- 1.0 44.2 +/- 5.0 35.5 - 52.9 STW-974 02/17103 Zn-65 56.8 +/- 2.2 60.3 +/- 6.0 . 49.9 -70.7 STW-975 d 02/17/03 Gr. Alpha 18.4 +/- 0.3 37.6 +/- 9.4 21.3 - 53.9 STW-975 02/17103 Gr. Beta 11.7 +/-0.5 8.6 +/- 5.0 0.0 - 17.2 STW-976 02/17103 Ra-226 4.1 +/- 0.1 4.7 +/- 0.7 3.5 -6.0 STW-976 02117/03 Ra-228 7.6 +/- 0.5 6.5 +/- 1.6 3.7 - 9.3 STW-976 02117/03 Uranium 52.9 +/- 1.9 53.7 +/-5.4 44.4 - 63.0 STW-983 05/19103 H-3 1290.0 +/- 25.0 1250.0 +/-331.0 678.0 - 1820.0 S1W-984 05/19/03 1-131 19.7 +/- 1.3 20.8 +/- 3.0 15.6 - 26.0 STW-985 05/19103 Gr. Alpha 54.4 +/- 3.0 70.3 +/- 17.6 39.9 -101.0 STW-985 05/19103 Ra-226 14.9 +/- 0.2 16.5 +/-2.5 12.2 -20.8 STW-985 05/19103 Ra-228 13.1 +/-0.6 10.3 +/- 2.6 5.8 - 14.8 STW-985 05/19103 Uranium 14.5 +/- 0.4 15.1 +/-3.0 9.9 - 20.3 STW-986 05/19103 Co-60 56.9 +/- 8.6 63.8 +/- 5.0 55.1 - 72.5 STW-986 05/19103 Cs-1 34 61.6 +/- 6.6 75.7 +/- 5.0 67.0 - 84.4 STW-986 05/19103 Cs-137 143.0 +/- 1.2 150.0 +/- 7.5 137.0 -163.0 S1W-986 05/19/03 Gr. Beta 309.0 +/- 2.7 363.0 +/- 54.5 269.0 - 457.0 STW-986 05/19/03 Sr-89 33.1 +/- 0.2. 31.3 +/- 5.0 22.6 -40.0 STW-986 05/19/03 Sr-90 28.8 +/- 1.3 27A +/- 5.0 18.7 - 36.1 STW-988 08/18/03 Ra-226 13.3 +/-1.1 13.4 +/-2.0 9.9 - 16.9 STW-988 08/18/03 Ra-228 11.5 +/-1.0 12.5 +/-3.1 7.1 -17.9 STW-988 08/18/03 Uranium 12.3 +/- 0.4 11.4 +/-3.0 6.2 - 16.6 STW-989 08/18/03 Ba-133 18.1 +/-1.9 20.7 +/- 5.0 12.0 - 29.4 STW-989 08/18/03 Co-60 35.9 +/- 1.3 37.4 +/- 5.0 28.7 - 46.1 STW-989 08/18/03 Cs-134 32.6 +/- 1.8 32.6 +/- 5.0 23.9 - 41.3 STW-989 08/18/03 Cs-137 48.3 +/- 0.6 44.3 +/- 5.0 35.6 - 53.0 STW-989 08/18/03 Zn-65 58.9 +/- 2.1 60.2 +/- 6.0 49.8 - 70.6 STW-990 08/18/03 Gr. Alpha 41.8 +/- 3.4 56.2 +/- 16.3 36.9 - 93.3 STW-990' 08/18/03 Gr. Beta 51.3 +/- 3.0 31.6 +/- 5.0 22.9 - 40.3 STW-991 08/18103 Sr-89 57.2 +/- 4.3 58.8 +/- 5.0 50.1 - 67.5 STW-991 08/18/03 Sr-90o 21.2 +/- 0.9 20.6 +/- 5.0 11.9 - 29.3 IV1-1

TABLE IV-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA) .

Concentration (pCUIL)

Lab Code Date Analysis Laboratory ERA Control Resultb . Result Limits STW-997 11/18/03 Gr. Alpha 37.0 +/- 2.0 29.5

• 7.4 16.7 - 42.3 STW-997 11/18/03 Gr. Beta 26.5 +/- 0.8 26.3 +/- 5.0 17.6 - 35.0 STW-998 11/18/03 1-131 14.8 +/- 0.3 16.5 *3.0 11.3 - 21.7 STW-999 11/18/03 Ra-226 17.2 +/- 1.1 17.8 +/- 2.7 13.2 - 22.4 STW-999 11/18/03 Ra-228 6.6 +/- 0.3 .6.8 +/-1.7 3.8 -9.7 STW-999 11/18/03 Uranium 11.7 +/-0.3 11.7 +/-3.0 6.5 - 16.9 STW-1000 11/18103 H-3 15900.0 +/- 174.0 14300.0 +/- 1430.0 11800.0 - 16800.0 SlW-1001 11/18/03 Gr. Alpha 32.9 +/- 0.3 54.2 +/- 3.0 30.7 - 77.7 STW-1001 11/18/03 Ra-226 16.5 +/- 0.9 16.1 +/-2.4 11.9 - 20.3 STW-1001 11/18/03 Ra-228 6.2 +/- 0.5 5.5 +/- 1.4 3.1 - 7.9 STW-1001 11/18103 Uranium 9.7 +/-1.5 9.3 +/- 13.6 4.1 - 14.5 STW-1002 11/18/03 Co-60 27.7 +/- 1.9 27.7 +/- 5.0 19.0 - 36.4 STW-1002 11/18103 Cs-1 34 21.5 +/- 1.1 23.4

• 5.0 17.6 - 29.2 STW-1002 11/18/03 Cs-1 37 66.3 +/- 2.8 64.2 +/- 5.0 55.5 - 72.9 STW-1002 11/18103 Gr. Beta 159.0

• 2.5 168.0 +/- 5.0 124.0 - 212.0 STW-1002 11/18/03 Sr-89 48.5 +/- 0.4 50.4

• 5.0 41.7 - 59.1 STW-1002 11/18/03 Sr-90 10.1 +/-3.0 10.2 +/- 25.2 1.5 - 18.9 Results obtained by Environmental, Inc., Midwest Laboratory as a participant In the environmental samples crosscheck program operated by Environmental Resources Associates (ERA).

b Unless otherwise Indicated, the laboratory result Isgiven as the mean +/- standard deviation for three determinations.

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

d Recount of the original sample still low. The ERA blank was spiked In the lab; known value of 20.1 pCUL, measured 21.5 i 1.1 pCi/L. No explanation for ERA test failure.

".Lower bias observed for gamma spectroscopic analysis. The undiluted sample was reanalyzed; Results of reanalysis, Co-SO: 62.3 pC lL. Cs-134: 69.2 pCUL., Cs-137: 152.3 pciL.

Reason for deviation unknown. A recount of the original planchets averaged 43.4 pCilL.

Cs- 137activity by gamma spectroscopy; 28.3 pCi/L. Result of reanalysis; 29.3 pCUL.

IVI-2

TABLE IV-2. Crosscheck program results; Thermoluminescent Dosimetry, (TLDs).

mR Lab Code TLD Type Date Known Lab Result Control Description Value i 2 sigma Limits Environmental. Inc.

2003-1 CaSO4: Dy Cards 818/2003 Reader 1,120 4.69 4.74 i 0.54 3.28 - 6.10 2003-1 CaSO4: Dy Cards 81812003 Reader 1,150 3.00 3.02 +/- 0.20 2.10 - 3.90 2003-1 CaSO4: Dy Cards 8/812003 Reader 1,180 2.08 1.89 +/- 0.45 1.46 - 2.70 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,180 2.08 2.11 +/- 0.22 1.46 - 2.70 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1.30 75.00 84.40 +/- 4.87 52.50 - 97.50 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,60 18.75 19.11 +/-1.86 13.13 - 24.38 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,60 18.75 22.82 +/- 5.41 13.13 - 24.38 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,90 8.33 9.05 +/- 1.17 5.83 - 10.83 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,90 8.33 7.60 +/- 1.08 5.83 - 10.83 Environmental. Inc.

2003-2 CaSO4: Dy Cards 1/1212004 Reader 1,30 61.96 73.50 +/- 2.58 43.37 - 80.55 2003-2 CaSO4: Dy Cards 1/12/2004 Reader 1,60 15.49 19.70 +/- 0.51 10.84 - 20.14 2003-2 CaSO4: Dy Cards 1/12/2004 Reader 1.60 15.49 16.93 +/- 1.37 10.84 - 20.14 2003-2 CaSO4: Dy Cards 1/1212004 Reader 1,90 6.88 8.06 +/- 0.60 4.82 - 8.94 2003-2 CaSO4: Dy Cards 1/12/2004 Reader 1.90 6.88 6.64 +/- 0.58 4.82 - 8.94 2003-2 CaSO4: Dy Cards 1/12/2004 Reader 1, 120 3.87 4.39 +/- 0.17 2.71 - 5.03 2003-2 CaSO4: Dy Cards 111212004 Reader 1,150 2.48 2.34 +/-0.18 1.74 - 3.22 2003-2 CaSO4: Dy Cards 1/12/2004 Reader 1,150 2.48 2.51 +/- 0.16 1.74 - 3.22 2003-2 CaSO4: Dy Cards 1/1212004 Reader 1,180 1.72 2.01 +/-0.13 1.20 - 2.24 IV2-1

TABLE IV-3. In-House "Spike" Samples Concentration (pCiIL)a Lab Code Sample Date Analysis Laboratory results Known Control -

Type 2s, n=lb Activity Limitsc SPW-356 water 112/2003 Sr-90 34.04 +/- 1.57 30.93 24.74 - 37.12 W-10303 water 1/3/2003 Gr. Beta 63.24 +/- 1.20 63.90 53.90 - 73.90 W-11303 water 1113/2003 Gr. Beta 59.75 +/- 1.10 63.90 53.90 - 73.90 W-12103 water 1/21/2003 Gr. Beta 61.56

• 1.59 63.99 53.99 - 73.99 SPAP446 Air Filter 1131/2003 Gr. Beta 1.49 +/- 0.02 1.52 -8.48 - 11.52 SPW-468 water 113112003 H-3 95982.00 +/- 865.00 89607.00 71685.60 - 107528.40 W-20703 water 217/2003 Fe-55 9095.00 +/- 114.00 10587.00 8469.60 - 12704.40 SPU-1347 Urine 3/1/2003 H-3 1724.00 +/- 412.00 1784.33 1101.27 - 2467.39 DW-30303 water 3/3/2003 Gr. Beta 65.44 +/- 0.59 63.90 53.90 - 73.90 SPCH-964 Charcoal 3/8/2003 1-131 (G) 73.37 +/- 0.28 69.45 59.45 - 79.45 SPMI-1086 Milk 3/13/2003 Cs-137 57.18 +/- 8.03 49.50 39.50 - 59.50 SPMI-1086 Milk 3/13/2003 1-131 75.13 +/- 12.01 67.60 54.08 - 81.12 SPMI-1086 Milk 3/13/2003 1-131(G) 65.81 +/- 1.06 67.56 57.56 - 77.56 SPW-1088 water 3113/2003 Co-60 27.16 +/- 4.79 28.20 18.20 - 38.20 SPW-1088 water 3113/2003 Cs-1 37 51.74 +/- 9.15 49.50 39.50 - 59.50 SPW-1088 water 3113/2003 1-131 (G) 68.14 +/- 12.92 67.60 57.60 - 77.60 SPW-1088 water 3/13/2003 1-131 76.94 +/- 1.13 67.56 54.05 - 81.07 SPVE-1110 Vegetation 3/14/2003 1-131(G) 122.80 +/- 16.80 124.00 111.60 - 136.40 SPW-1194 water 3121/2003 Co-60 31.09 +/- 6.28 28.15 18.15 - 38.15 SPW-1194 water 3/21/2003 Cs-1 37 55.11 +/- 0.13 49.50 39.50 - 59.50 SPW-1194 water 3/21/2003 1-131 (G) 66.17 +/- 9.15 67.60 57.60 - 77.60 W-32103 water 3/21/2003 C-14 5201.00 +/- 16.60 4966.00 2979.60 - 6952.40 SPCH-1429 Charcoal 4/1/2003 1-131 (G) 8.83 +/- 0.11 9.18 -0.82 - 19.18 W-40103 water 411/2003 Gr. Beta 67.74 +/- 0.52 63.39 53.39 - 73.39 SPF-1407 Fish 4/2/2003 Cs-i 34 0.58 +/- 0.03 0.59 0.35 - 0.83 SPF-1407 Fish 4/2/2003 Cs-I 37 1.29 +/- 0.06 1.32 0.79 - 1.85 SPAP-1409 Air Filter 412/2003 Gr. Beta 1.44 +/- 0.02 1.51 -8.49 - 11.51 SPU-41203 Urine 4112/2003 H-3 1798.50 +/- 409.30 1784.33 1101.27 - 2467.39 SPU-41703 Urine 4/17/2003 H-3 1625.10 +/- 401.30 1784.33 1101.27 -2467.39 SPW-2022 water 4/25/2003 H-3 89007.00 +/- 798.00 88463.00 70770.40 - 106155.60 SPW-2053 water 4128/2003 Cs-1 37 45.70 +/- 9.44 49.35 39.35 - 59.35 SPW-2053 water 4/28/2003 Sr-90 47.51 +/- 1.87 44.47 35.58 - 53.36 SPMI-2055 Milk 4/2812003 Cs-I 37 61.65 +/- 7.17 65.80 55.80 - 75.80 SPMI-2055 Milk 4/28/2003 Sr-90 38.45 +/- 1.59 44.74 35.79 - 53.69 W-50603 water 5/6/2003 Gr. Beta 70.95 +/- 0.53 63.39 53.39 - 73.39 W-60303 water 613/2003 Gr. Beta 63.00 + 0.51 65.73 55.73 - 75.73 SPW-3960 water 7/15/2003 H-3 88700.00 +/- 822.00 87369.00 69895.20 - 104842.80 SPMI-4019 Milk 7/18/2003 Cs-1 37 47.17 +/- 7.22 49.11 39.11 - 59.11 SPMI4019 Milk 7/18/2003 Sr-89 40.95 +/- 4.88 49.49 39.49 - 59.49 SPMI4019 Milk 7/18/2003 Sr-90 45.30 +/- 1.73 44.24 35.39 - 53.09 SPW4023 water 7/18/2003 Cs-137 51.92 +/- 6.24 49.11 39.11 - 59.11 SPW4023 water 7/18/2003 Sr-89 42.49 +/- 10.23 49.49 39.49 - 59.49 SPW4023 water 7/18/2003 Sr-90 49.69 +/- 3.04 44.24 35.39 - 53.09 SPW4518 water 8/8/2003 Fe-55 8176.00 +/- 107.00 9330.00 7464.00 - 11196.00 IV3-1

TABLE IV-3. In-House PSpike Samples Concentration (pCVL)

Lab Code Sample Date Analysis Laboratory results Known Control Type' 2s, n= 1b Activity Limits' SPW-6197 water 10/16/2003 Tc-99 540.14 +/- 54.00 539.73 377.81 -701.65 SPAP-3958 Air Filter 10/2812003 Gr. Beta 1.45 i 0.02 1.50 -8.50 - 11.50 SPW-6401 water 10/2812003 H-3 84867.00 +/- 826.00 85984.00 68787.20 - 103180.80 SPAP-6403 Air Filter 10/28/2003 Gr. Beta 1.71 +/- 0.02 1.49 -8.51 - 11.49 SPF-6418 Fish 10/28/2003 Cs-1 34 0.50 +/- 0.02 0.49 0.29 - 0.69 SPF-6418 Fish 10/28/2003 Cs-137 1.37 +/- 0.05 1.30 0.78 - 1.82 SPW-6421 water 10/28/2003 Fe-55 104.18 +/- 1.26 88.18 68.18 - 108.18 SPMI-7459 Milk 12/1212003 Cs-134 41.06 +/- 2.45 41.88 31.88 - 51.88 SPMI-7459 Milk 12112/2003 Cs-137 48.48 + 4.99 48.64 38.64 -58.64 SPMI-7459 Milk 12/1212003 Sr-89 55.94 +/- 4.12 65.80 52.64 -78.96 SPMI-7459 Milk 12/12/2003 Sr-90 41.86 +/- 1.57 43.80 35.04 - 52.56 SPW-7461 water 1211212003 Cs-134 44.07 i 1.49 41.88 31.88 -51.88 SPW-7461 water 12112/2003 Cs-137 50.26 +/-2.67 48.64 38.64 - 58.64 SPW-7461 water 12/12/2003 Sr-89 56.41 +/- 4.87 65.80 52.64 - 78.96 SPW-7461 water 12112/2003 Sr-90 48.44 +/- 1.84 43.80 35.04 - 52.56

'Control limits are based on Attachment A, Page A2 of this report.

NOTE: For fish, Jello Is used for the Spike matrix. For Vegetation, cabbage is used for the Spike matrix.

IV3-2

TABLE IV-4. In-House "Blank" Samples Concentration (pCUL)'

Lab Code Sample Date Analysis Laboratory results (4.66cr) Acceptance Type LLD Activityb Criteria (4.66 a)

SPW-357 water 1/212003 Sr-90 0.50 0.12 +/- 0.25 3 W-10303 water 1/3/2003 Gr. Beta 0.12 0.022 +/- 0.10 3.2 W-1 1303 water 1/13/2003 Gr. Beta 0.14 0.035 +/- 0.10 3.2 W-12103 water 1/2112003 Gr. Beta 0.12 0.029 +/- 0.09 3.2 SPAP-447 Air Filter 1/31/2003 Gr. Beta 0.00 -0.0034 +/- 0.00 3.2 SPW-469 water 1/31/2003 H-3 160.20 19.3 +/- 80.30 200 21/112003 W-20103 water 2/112003 Gr. Beta 0.17 0.0 +/- 0.12 3.2 W-20703 water 217/2003 Fe-55 802.00 149 +/-498.00 1000 DW-30303 3/3/2003 Gr. Beta 0.15 0.007 +/- 0.11 3.2 SPCH-965 Charcoal Cani: 3/8/2003 1-131 (G) 0.01 9.6 SPMI-1087 Milk 3/13/2003 Cs-134 7.49 10 SPMI-1087 Milk 3/13/2003 Cs-1 37 7.90 10 SPMI-1087 Milk 3/13/2003 1-131 0.33 -0.013 +/- 0.18 0.5 SPMI-1087 Milk 3/13/2003 1-131(G) 7.76 20 SPW-1 089 water 3/13/2003 Co-60 4.48 10 SPW-1089 water 3/13/2003 Cs-1 34 5.60 10 SPW-1089 water 3/13/2003 Cs-I 37 4.32 10 SPW-1089 water 3/13/2003 1-131 0.29 -0.050 +/- 0.16 0.5 SPVE-1111 Vegetation 3/14/2003 1-131 (G) 7.53 20 W-32103 water 3/21/2003 C-14 17.50 -0.4 +/- 9.200 200 SPCH-1430 Charcoal Cani: 4/1/2003 1-131 (G) 0.01 9.6 W-40103 water 4/1/2003 Gr. Beta 0.14 -0.11 +/-0.100 3.2 SPF-1408 Fish 4/212003 Cs-134 0.01 100 SPF-1408 Fish 4/2/2003 Cs-1 37 0.01 100 SPAP-1410 Air Filter 4/212003 Gr. Beta 0.00 -0.0029 +/- 0.002 3.2 SPU-41203 Urine 4/12/2003 H-3 653.99 542.28 +/- 364.780 200 SPU-41703 *Urine 4/17/2003 H-3 648.35 100.1 +/-344.800 200 SPW-2054 water 4/28/2003 Cs-1 37 3.16 10 SPW-2054 water 4/28/2003 Sr-89 0.55 0.45 +/- 0.50 5 SPW-2054 water 4/28/2003 Sr-90 0.55 0.072 +/- 0.260 I SPMI-2056 ' Milk 4/28/2003 Sr-90 0.77 0.66 +/- 0.430 1 SPMI-2056 Milk 4/28/2003 Cs-137 2.74 10 SPMI-2056 Milk 4/28/2003 1-131 (G) 3.54 20 W-50603 water 5/6/2003 Gr. Beta 0.12 0 0.090 3.2 W-60303 water 6/3/2003 Gr. Beta 0.14 -0.035 +/- 0.095 3.2 SPW-3960 water 7/15/2003 H-3 156.60 53.4 +/- 80.200 200 SPMI-4018 Milk 7/18/2003 Cs-137 4.10 10 SPMI-4018 Milk 7/18/2003 Sr-89 0.73 0.39 +/- 0.880 5 SPMI-4018 ' Milk 7/18/2003 Sr-90 0.51 0.93 +/- 0.340 SPW-4024 water 7/18/2003 Sr-89 0.83 0.21 +/- 0.730 51 SPW-4024 water 7/18/2003 Sr-90 0.62 0.09 +/- 0.300 SPW-4519 water 8/8/2003 Fe-55 527.00 87 369.000 1000 SPW-6401 water 10/28/2003 H-3 163.80 -23.8 +/- 85.000 200 IV4-1

TABLE IV-4. In-House Blank Samptes Concentration (pCi/L)

Lab Code Sample Date Analysis Laboratory results (4.66a) Acceptance Type LLD Activityb Criteria (4.66 or)

SPAP-6404 Air Filter 10/28/2003 Gr. Beta 0.87 -0.99 f 0.440 3.2 SPF-6419 Fish 10/28/2003 Cs-1 34 0.01 100 SPF-6419 Fish 10/28/2003 Cs-137 0.01 100 SPMI-7460 Milk 12/12/2003 Cs-1 34 4.52 10 SPMI-7460 Milk 12/12/2003 Cs-137 5.77 10 SPMI.7460c Milk 12/12/2003 Sr-90 0.50 1.26 i 0.370 I Liquid sample results are reported inpCI/Llter, air fiIters( pCfilter), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

b The activity reported Isthe net activity result.

c Low levels of Sr-90 are still detected in the environment. A concentration of (1-5 pCIL) In milk Isnot unusual.

IV4-2

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCiIL)a Averaged Lab Code Date Analysis

• First Result Second Result Result MI-24,25 1/2/2003 K40 1362.00 i 117.00 1377.00 +/- 188.00 1369.50 +/- 110.72 Ml-24,25 1/2/2003 Sr-90 1.45 i 0.40 2.21 +/- 0.50 1.83 +/- 0.32 CF-47,48 1/2/2003 Gr. Beta 2.72 i 0.10 2.84 +/- 0.10 2.78 +/- 0.07 CF-47, 48 1/2/2003 K-40 2.61 +/- 0.31 2.32 +/- 0.12 2.47 +/- 0.17 AP-8827. 8828 1/2/2003 Be-7 0.06 +/- 0.01 0.05 +/- 0.02 0.05 +/- 0.01 AP-8869, 8870 1/212003 Be-7 0.04 +/- 0.02 0.05

• 0.02 0.05 +/- 0.01 Ml-119, 120 1t812003 K40 1351.90

• 116.10 1234.70 +/- 108.70 1293.30 +/- 79.52 MI-119, 120 1/8/2003 Sr-90 2.22

• 0.43 1.88 +/- 0.40 2.05 +/- 0.30 MI-213, 214 1/14/2003 K-40 1372.30 +/- 104.80 1303.80

• 109.10 1338.05 +/- 75.64 MI-213, 214 1/14/2003 Sr-90 1.81 +/-0.41 2.29 +/- 0.45 2.05 +/- 0.31 MI-262, 263 1/15/2003 K-40 1399.20 +/- 200.70 1347.70 +/- 126.40 1373.45 +/- 118.59 S-696, 697 1/29/2003 Gr. Alpha 24.70 +/- 4.89 23.23 +/- 4.64 23.97 +/- 3.37 S-696, 697 1/29/2003 Gr. Beta 22.89 +/- 2.67 22.71 +/- 2.73 22.80 +/- 1.91 MI-448,449 2/3/2003 K-40 1159.70 +/- 157.90 1396.40

• 106.20 1278.05 +/- 95.15 SW-470. 471 2/3/2003 Gr. Beta 13.62 +/- 1.23 15.21 +/-1.21 14.42 +/- 0.86 SW-470, 471 2/3/2003 K-40 (ICP) 5.10 +/- 0.51 5.20 +/- 0.52 5.15 +/- 0.36 SW-470, 471 2/3/2003 K40 5.80 +/- 0.51 5.90 +/- 0.52 5.85 +/- 0.36 MI-517, 518 2/4/2003 K-40 1437.70 +/- 125.50 1357.70 +/- 188.00 1397.70 +/- 113.02 MI-541, 542 2/5/2003 K-40 1443.00 +/- 194.80 1385.20 +/- 190.10 1414.10 +/- 136.09 MI-620, 621 2/11/2003 K-40 1294.70

• 115.10 1234.10 +/- 165.10 1264.40 +/- 100.63 DW-922. 923 3/4/2003 1-131 0.67 +/- 0.16 0.79 +/- 0.16 0.73 +/- 0.11 CF-1048, 1 0 4 9 b 3/10/2003 K-40 3.09 +/- 0.12 2.67 +/- 0.07 2.88 +/- 0.07 LW-1152, 1153 3/13/2003 H-3 1147.26 +/- 122.56 1094.42 +/- 120.92 1120.84 +/- 86.09 F-1120,1121 3/14/2003 Cs-137 0.04 +/- 0.02 0.05

• 0.01 0.05 +/- 0.01 F-1120, 1121 3/14/2003 Gr. Beta 2.04 + 0.06 2.11 +/-0.06 2.08 +/- 0.04 F-1120, 1121 3/14/2003 K-40 1.93 +/- 0.38 1.89 +/- 0.25 1.91 +/-0.23 DW-1278, 1279 3/25/2003 1-131 0.37 +/- 0.22 0.34 +/- 0.29 0.36 +/- 0.18 SO-1380, 1381 3/25/2003 Gr. Beta 18.60 +/- 2.68 20.53 +/- 2.83 19.57 +/- 1.95 LW-1299,1300 3/27/2003 Gr. Beta 2.35 i 0.55 2.48 +/- 0.56 2.42 +/- 0.39 LW-1320, 1321 3/27/2003 H-3 487.12 +/- 104.43 422.00 +/- 102.00 454.56 +/- 72.99 W-1403. 1404 3/31/2003 Sr-90 0.96 +/- 0.32 1.10 +/-0.42 1.03 +/- 0.26 AP-2019, 2020 3/31/2003 Be-7 0.07 +/- 0.01 0.08 +/- 0.01 0.07 +/- 0.01 MI-1422,1423 4/1/2003 K-40 1410.00 +/- 176.00 1340.00

• 114.00 1375.00 +/- 104.85 MI-2170, 2171 4/11/2003 K-40 1452.30 +/- 129.10 1472.50 +/- 191.00 1462.40 +/- 115.27 MI-1422, 1423 4/2/2003 Sr-90 1.84 +/-0.42 1.15 +/- 0.39 1.50 +/- 0.29 AP-1633, 1634 4/2/2003 Be-7 0.05 +/-0.01 0.06 +/- 0.01 0.06 +/- 0.01 AP-1871, 1872 4/2/2003 Be-7 0.07 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 AP-1974, 1975 4/2/2003 Be-7 0.08 +/- 0.02 0.07 +/- 0.02 0.08 +/- 0.01 LW-1828,1829 4111/2003 Gr. Beta 2.49 +/- 0.58 3.42 +/- 0.63 2.96 +/- 0.43 S-1544, 1545 4/15/2003 K-40 15.84 +/- 2.36 15.41 +/-2.02 15.63 +/- 1.55 DW-1913,1914 411512003 1-131 0.29 +/- 0.21 0.42 +/- 0.19 0.36 +/- 0.14 MI-1996,1997 4/21/2003 Sr-90 2.05 +/- 0.74 3.25 +/- 0.91 2.65 +/- 0.58 MI-1996, 1997 4/22/2003 K-40 1580.20 +/- 118.90 1602.10 +/- 120.40 1591.15 +/- 84.61 IV5-1

TABLE IV-5. In-House 'Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result LW-2063,2064 4128/2003 Gr. Beta 2.33 +/- 0.66 2.68 +/- 0.60 2.51 +/- 0.45 SWU-2275, 2276 4/28/2003 Gr. Beta 3.62 + 0.67 4.60 +/- 0.71 4.11 +/- 0.49 G-2149, 2150 4/30/2003 Be-7 0.71 +/- 0.19 0.69 +/- 0.20 0.70 +/- 0.14 TD-2339, 2340 5/1/2003 H-3 221.00 +/-91.00 161.00 +/- 88.00 191.00 +/- 63.29 SO-2381, 2382 5/1/2003 Cs-1 37 0.11 0.03 0.10 +/- 0.02 0.10 +/- 0.02 SO-2381, 2382 5/1/2003 Gr. Alpha 11.14 +/-5.15 10.39 +/- 5.60 10.77 +/- 3.80 S0-2381, 2382 5/1/2003 Gr. Beta 35.18 *4.69 39.66 +/- 5.24 37.42 +/- 3.52 SO-2381, 2382 5/1/2003 K-40 18.29

• 0.84 17.83 +/- 0.84 18.06 +/- 0.59 S0-2381, 2382 5/1/2003 Sr-90 0.06 +/- 0.02 0.10 +/- 0.02 0.08 +/- 0.01 DW-2317. 2318 5/6/2003 1-131 1.77 +/- 0.27 1.47 +/- 0.26 1.62 +/- 0.19 BS-2595, 2596 5/6/2003 Cs-137 0.06 +/- 0.02 0.06 +/- 0.02 0.06 +/- 0.02 BS-2595, 2596 5/6/2003 K-40 13.74 +/- 0.62 14.10 +/- 0.73 13.92 +/- 0.48 U-2484. 2485 5/9/2003 H-3 512.00 +/- 100.00 370.00 +/- 95.00 441.00 +/- 68.97 SO-2645, 2646 5/14/2003 Be-7 1.18 +/- 0.42 1.21 +/- 0.35 1.19 +/- 0.27 SO-2645, 2646 5/14/2003 Cs-137 0.11 +/- 0.04 0.09

• 0.05 0.10 +/- 0.03 S0-2645,2646 5/14/2003 K-40 16.50 +/- 1.13 15.33 +/- 1.09 15.91 +/- 0.79 MI-2696, 2697 5/19/2003 K-40 1320.40 +/- 124.50 1394.10 +/- 113.00 1357.25 +/- 84.07 MI-2696, 2697 5/19/2003 Sr-90 1.49 +/- 0.47 2.01 +/- 0.45 1.75 +/- 0.32 S0-2787, 2788 5/28/2003 Cs- 37 0.27 +/- 0.04 0.23 +/- 0.04 0.25 +/- 0.03 S0-2787, 2788 5/28/2003 Gr. Beta 19.62 +/- 1.73 20.81 +/- 1.72 20.21 +/- 1.22 SO-2787, 2788 5/28/2003 K-40 14.77 +/- 1.02 14.41 +/- 1.00 14.59 +/- 0.71 MI-2840. 2841 5/28/2003 K-40 1179.50 +/- 167.80 1401.70 +/- 120.20 1290.60 +/- 103.20 SWU-2864, 2865 512812003 Gr. Beta 3.39 +/- 0.59 3.41 +/- 0.64 3.40 +/- 0.43 BS-2888, 2889 5/29/2003 Cs- 37 0.05 +/- 0.02 0.07 +/- 0.04 0.06 +/- 0.02 BS-2888, 2889 5/29/2003 K-40 9.70 +/- 0.83 10.17 +/- 0.87 9.93 +/- 0.60 W-3230,3231 5/30/2003 Gr. Beta 4.33 +/- 1.00 3.28 +/- 1.22 3.81 +/- 0.79 TD-3036, 3037 6/2/2003 H-3 529.50 +/- 100.00 585.50 +/- 102.00 557.50 +/- 71.42 SL-2909, 2910b 6/3/2003 Gr. Beta 7.10 +/- 0.15 7.60 +/- 0.16 7.35 +/- 0.11 SL-2909. 2910 6/3/2003 K-40 3.90 +/- 0.67 3.49 +/- 0.52 3.70 +/- 0.42 SW-3080, 3081 6/10/2003 Gr. Alpha 4.63 +/- 1.90 4.47 +/- 1.71 4.55 +/- 1.28 SW-3080, 3081 6/10/2003 Gr. Beta 9.07 +/- 1.29 8.98 +/- 1.28 9.02 +/- 0.91 VE-3172, 3173 6/11/2003 K-40 2.62 +/- 0.35 3.17 +/- 0.58 2.90 +/- 0.34 F-3742, 3743 6/11/2003 Gr. Beta 3.47 +/- 0.13 3.71 +/- 0.14 3.59 +/- 0.10 F-3742,3743 6/1112003 K-40 2.94 +/- 0.39 2.70 +/- OAO 2.82 +/- 0.28 S0-3325, 3326 6/13/2003 Gr. Beta 20.95 +/- 1.88 19.97 +/- 2.01 20;46 +/- 1.38 MI-3253, 3254 6/17/2003 K-40 1329.40 +/- 121.80 1417.60 +/- 130.90 1373.50 +/- 89.40 MI-3297, 3298 6/17/2003 Sr-90 2.14 +/-0.57 2.27 +/- 0.50 2.21 +/- 0.38 WW-3380, 3381 6/23/2003 Gr. Beta 5.58 +/- 0.69 5.03 +/- 0.69 5.31 +/- 0.49 SWT-3403, 3404 6/24/2003 Gr. Beta 2.80 +/- 0.56 2.63 +/- 0.55 2.72 +/- 0.39 MI-3424, 3425 6/24/2003 K-40 1422.80 +/- 185.40 1216.20 +/- 170.10 1319.50 +/- 125.80 SW-3862,3863 6/24/2003 Gr. Beta 3.66 +/- 1.18 3.70 +/- 1.22 3.68 +/- 0.85 G-3479, 3480 6/25/2003 Be-7 1.52 +/- 0.25 1.43 +/- 0.28 1.47 +/- 0.19 G-3479,3480 6/25/2003 K-40 5.02 +/- 0.45 5.10 +/- 0.48 5.06 +/- 0.33 LW-3809, 3810 6/30/2003 Gr. Beta 2.12 +/- 0.76 2.39 +/- 0.72 2.25 +/- 0.52 IV5-2

TABLE IV-5. In-House 'Duplicate" Samples Concentration (pCVL)'

Averaged Lab Code Date Analysis First Result Second Result Result LW-3809, 3810 6/30/2003 H-3 2814.09 I 167.99 2812.17 +/- 167.94 2813.13 +/- 118.77 AP4105, 4106 6130/2003 Be-7 0.07 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 G-3572, 3573 711/2003 Be-7 0.91 i 0.24 0.81 +/- 0.28 0.86 +/- 0.18 G-3572, 3573 7/1/2003 Gr. Beta 6.35

• 0.15 6.35 +/- 0.15 6.35 +/- 0.11 G-3572, 3573 7/1/2003 K-40 5.44 i 0.55 5.68 +/- 0.28 5.56 +/- 0.31 G-3572. 3573 7/112003 Sr-90 0.01 +/-0.00 0.02 +/- 0.00 0.01 +/- 0.00 MI-3601, 3602 7/112003 K-40 1318.60 i 117.40 1435.10 +/- 117.80 1376.85 +/- 83.16 MI-3601, 3602 7/112003 Sr-90 0.86 i 0.51 1.74 +/- 0.60 1.30 +/- 0.39 AP-3933, 3934 7/1/2003 Be-7 0.07 i 0.01 0.07 +/- 0.01 0.07 +/- 0.01 AP4061, 4062 7/212003 Be-7 0.07 t 0.01 0.08 +/- 0.01 0.08 +/- 0.01 AP4147. 4148 7/212003 Be-7 0.08 i 0.01 0.07 +/- 0.01 0.07 +/- 0.01 AP4084, 4085 7/312003 Be-7 0.09 t 0.02 0.08 +/- 0.02 0.08

• 0.01 LW-3786, 3787 7/9/2003 Gr. Beta 2.13 i 0.56 2.93 +/- 0.62 2.53 +/- 0.42 WW4168, 4169 7/11/2003 Gr. Beta 3.79 t 1.87 4.48 +/- 1.98 4.14 +/- 1.36 CF-3975, 3976 7/14/2003 Be-7 1.64 f 0.81 1.66 +/- 0.57 1.65 +/- 0.50 CF-3975, 3976 7/14/2003 K-40 6.54 i 0.75 6.19 +/- 0.50 6.36 +/- 0.45 Ml-4020, 4021 7/16/2003 K-40 1350.90 + 174.90 1199.80 +/- 153.20 1275.35 +/- 116.25 DW-4272, 4273 7/29/2003 Gr. Beta 2.35

• 0.92 2.29 +/- 0.89 2.32 +/- 0.64 SWU4461, 4462 7/30/2003 Gr. Beta 2.28 +/- 0.44 1.93 +/- 0.43 2.10 +/- 0.31 SL-4398, 4399 8/4/2003 Be-7 4.55

• 1.05 4.50 +/- 1.10 4.53 +/- 0.76 SL-4398. 4399 b 8/4/2003 Gr. Beta 3.41 *0.12 3.12 +/- 0.11 3.27 +/- 0.08 SL4398. 4399 8/4/2003 K-40 2.47 i 0.67 2.44 +/- 0.87 2.46 +/- 0.55 G-4419, 4420 8/4/2003 Be-7 3.98 i 0.63 3.93 +/- 0.57 3.96 +/- 0.42 G4419, 4420 8/412003 Gr. Beta 5.38 f 0.14 5.35 +/- 0.16 5.37 +/- 0.11 G4419. 4420 8/4/2003 K-40 4.42

• 0.66 4.32 +/- 0.74 4.37 +/- 0.50 TD-4550, 4551 8/4/2003 H-3 327.30 i 95.10 390.20 +/- 92.10 358.75 +/- 66.19 Ml-4482, 4483 8/6/2003 K-40 1301.40 +/- 115.20 1370.30 +/- 116.80 1335.85 +/- 82.03 Ml-4482, 4483 8/6/2003 Sr-90 0.81 +/- 0.30 0.85 +/- 0.31 0.83 +/- 0.21 G-4526, 4527 8/6/2003 Be-7 1.47 +/- 0.29 1.42 +/- 0.28 1.45 +/- 0.20 G-4526, 4527 816/2003 K-40 5.42 +/- 0.56 5.21 +/- 0.63 5.31 +/- 0.42 SWU4609, 4610 816/2003 Gr. Beta 3.22 +/- 0.63 2.67 +/- 0.64 2.95 +/- 0.45 CW-4694, 4695 8/6/2003 Gr. Beta 1.48 +/- 0.34 1.09 +/- 0.34 1.29 +/- 0.24 CW-4694, 4695 8/6/2003 H-3 22776.41 +/-428.73 21831.75 +/- 420.10 22304.08 +/- 300.12 LW-4673, 4674 8/13/2003 Gr. Beta 2.86 +/- 0.65 3.75 +/- 0.71 3.30 +/- 0.48 MI-4735, 4736 8/1912003 K-40 1396.30 +/- 127.90 1410.10 +/- 120.20 1403.20 +/- 87.76 MIl4756, 4757 8/19/2003 Sr-90 1.66 +/- 0.47 1.53 +/- 0.44 1.60 +/- 0.32 VE4832, 4833 8/20/2003 K-40 1.96 +/- 0.50 1.43 +/- 0.47 1.70 +/- 0.34 MI-4860, 4861 8/2612003 K-40 1312.10 + 191.80 1307.80 +/- 109.30 1309.95 +/- 110.38 SO-5082, 5083 812812003 Cs-137 0.01 +/- 0.00 0.01 +/- 0.00 0.01 +/- 0.00 SO-5082, 5083 8/28/2003 Gr. Beta 20.02 +/- 1.84 20.92 +/- 2.03 20.47 +/- 1.37 CW-5349, 5350 8/31/2003 Gr. Beta 1.45 +/- 0.39 1.55 +/- 0.45 1.50 +/- 0.30 CW-5349, 5350 8/31/2003 H-3 24429.50 + 444.42 24744.25 +/- 447.18 24586.88 +/- 315.23 ME-4968, 4969 9/2/2003 Gr. Beta 4.90 + 0.23 5.18 +/- 0.24 5.04 +/- 0.17 ME-4968, 4969 9/2/2003 K.40 2.46 +/- 0.41 2.68 +/- 0.37 2.57 +/- 0.28 IV5-3

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCVL)a Averaged Lab Code Date Analysis First Result Second Result Result DW-4989, 4990 912/2003 Gr. Beta 2.20 +/- 1.04 3.19 +/- 1.14 2.70 +/- 0.77 MI-5154, 5155 918/2003 K-40 1365.50 + 116.70 1456.70 +/- 119.10 1411.10 +/- 83.37 MI-5154, 5155 9/8/2003 Sr-90 1.19 +/-0.39 1.39 +/- 0.39 1.29 +/- 0.28 AP-6177, 6178 9/29/2003 Be-7 0.07 0O.01 0.06 +/- 0.01 0.06 +/- 0.01 SWU-5773, 5774 9/30/2003 Gr. Beta 2.55 +/- 0.63 2.83 +/- 0.60 2.69 +/- 0.44 AP-6102, 6103 9/30/2003 Be-7 0.07 +/- 0.01 0.05 +/- 0.01 0.06 +/- 0.01 G-5631, 5632 10/1/2003 Be-7 1.88 *0.48 2.21

• 0.40 2.05 +/- 0.31 G-5631, 5632 10/11/2003 Gr. Beta 5.87 +/- 0.09 5.85 +/- 0.08 5.86 +/- 0.06 G-5631, 5632 110/1/2003 K-40 5.24 +/- 0.77 5.26 +/- 0.58 5.25 +/- 0.48 SO-5660, 5661 10/1/2003 Cs-137 0.15 +/- 0.04 0.16 +/- 0.05 0.16 +/- 0.03 S0-5660, 5661 10/1/2003 Gr. Alpha 12.72 +/- 3.72 14.86 +/- 3.88 13.79 +/- 2.69 SO-5660. 5661 10/11/2003 Gr. Beta 32.42 +/- 3.09 33.60 +/- 3.04 33.01 +/- 2.17 S0-5660, 5661 10/1/2003 K-40 18.93 +/-0.87 18.25 +/- 1.19 18.59 +/- 0.74 SO-5660, 5661 10/1/2003 Sr-90 0.03 +/- 0.01 0.03 +/- 0.01 0.03 +/- 0.01 AP-6334, 6335 10/1/2003 Be-7 0.06 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 AP-6363, 6364 1012/2003 Be-7 0.07 +/- 0.02 0.07 +/- 0.02 0.07 +/- 0.01 Ml-5794. 5795 10/6/2003 Sr-90 1.37 +/- 0.37 1.02 +/- 0.37 1.19 +/- 0.26 MI-5838, 5839 1018/2003 K-40 1364.30 +/- 124.10 1414.40 +/- 110.40 1389.35 +/- 83.05 MI-5838, 5839 10/8/2003 Sr-90 0.76 +/- 0.30 1.00 +/- 0.34 0.88 +/- 0.23 BS-5938, 5939 10/812003 Cs-1 37 0.18 +/- 0.03 0.20 +/- 0.05 0.19 +/- 0.03 BS-5938, 5939 10/812003 K-40 15.59 +/- 0.70 16.69 +/- 0.80 16.14 +/- 0.53 SS-5959. 5960 10/1312003 K-40 7.49 +/- 0.42 7.29 +/- 0.63 7.39 +/- 0.38 MI-6011, 6012 10/13/2003 K-40 1165.20 +/- 118.70 1191.20 +/- 99.50 1178.20 +/- 77A4 MI-6034, 6035 1011412003 Sr-90 0.86 +/- 0.33 0.90 +/- 0.34 0.88 +/- 0.24 VE-6055, 6056 10/15/2003 Gr. Beta 5.18 +/- 0.18 5.33 +/- 0.18 5.25 +/- 0.13 VE-6055, 6056 10/1512003 K-40 5.31 +/- 0.57 4.52 +/- 0.51 4.92 +/- 0.38 MI-6291, 6292 10/21/2003 K-40 1935.60 +/- 147.70 1936.10 +/- 116.50 1935.85 +/- 94.06 MI-6291, 6292 10/2112003 Sr-90 1.22 +/- 0.39 1.41 +/- 0.37 1.31 +/-0.27 SS-6435, 6436 10/21/2003 Cs-137 0.05 +/- 0.02 0.05 +/- 0.03 0.05 +/- 0.02 SS-6435. 6436 10121/2003 K40 14.08 +/- 0.54 14.28 +/- 0.80 14.18

• 0.48 CF-6313, 6314 10/22/2003 K-40 14.56 +/- 0.45 14.70 +/- 0.95 14.63 +/- 0.53 SO-6528. 6529 10/22/2003 Cs-137 0.15 +/- 0.03 0.16 +/- 0.05 0.16 +/-0.03 S0-6528, 6529 10/22/2003 K-40 17.46 +/- 0.69 17.90 +/- 1.05 17.68 +/- 0.63 S0-6393, 6394 10/25/2003 Cs-137 0.09 +/- 0.03 0.10 +/- 0.04 0.10 +/- 0.03 S0-6393, 6394 10/25/2003 Gr. Beta 23.21 +/- 1.98 21.76 +/- 1.91 22.48 +/- 1.38 SO-6393, 6394 10/25/2003 K-40 13.98 +/- 0.80 14.57 +/- 0.86 14.27 +/- 0.59 SWT-6507. 6508 10128/2003 Gr. Beta 2.64 +/- 0.52 2.63 +/- 0.53 2.63 +/- 0.37 DW-6647, 6648 10/31/2003 1-131 0.46 +/- 0.27 0.61 +/- 0.31 0.53 +/- 0.21 BS-6603. 6604 11/3/2003 Cs-137 9.03 +/- 0.82 8.60 +/- 1.13 8.82 +/- 0.70 BS-6603, 6604 11/3/2003 Gr. Beta 26.83 +/- 1.94 27.18 +/- 1.95 27.01 +/- 1.38 S0-6670, 6671 11/5/2003 Cs-137 0.15 +/- 0.04 0.13 +/- 0.04 0.14 +/- 0.03 SO-6670, 6671 11/5/2003 K-40 12.96 +/- 0.66 12.95 +/- 0.72 12.96 +/- 0.49 S-7067, 7068 11/10/2003 Cs-1 37 0.21 +/- 0.05 0.19 +/- 0.08 0.20 +/- 0.05 MI-6818. 6819 11/11/2003 K-40 1695.50 +/- 129.80 1709.40 +/- 143.00 1702.45 +/- 96.56 IV5-4

TABLE IV-5. In-House 'Duplicate" Samples Concentration (pCUL)'

Averagedsl Lab Code Date Analysis First Result Second Result Result Ml-6818, 6819 11/11/2003

• Sr-90 2.01 +/-0.41 1.59 +/- 0.39 1.80 +/- 0.28 WL-6987, 6988 11/17/2003 Fe-55 603.49 +/- 53.32 619.65

• 53.97 611.57

• 37.93 SO-7156, 7157 11/21/2003 Cs-1 37 0.74 +/- 0.08 0.77 +/- 0.07 0.76 +/- 0.06 SO-7156, 7157 11/21/2003 Gr.Alpha 14.90 +/- 4.24 19.25 +/- 4.45 17.07 +/- 3.07 SO-7156. 7157 11/2112003 Gr. Beta 22.97 +/- 3.12 25.51 +/-2.98 24.24 +/- 2.16 S0-7156, 7157 11/21/2003 K-40 12.51 +/- 1.06 12.94 +/- 1.07 12.73 +/- 0.75 S-7281, 7282 11/24/2003 Cs-137 0.82 +/- 0.15 1.16 +/- 0.20 0.99 +/- 0.12 SWU-7198,7199 11125/2003 Gr. Beta 2.60

• 0.53 2.54 +/- 0.55 2.57 +/- 0.38 DW-7221. 7222 11/25/2003 Gr. Beta 12.32 +/- 1.40 12.38 +/- 1.43 12.35 +/- 1.00 SW-7133. 7134 1211/2003 Gr. Beta 2.10 +/- 0.23 2.46

• 0.23 2.28 +/- 0.16 SW-7133, 7134 121112003 K-40 1.50 +/- 0.15 1.40 +/- 0.14 1.45 +/- 0.10 W-7519, 7520 12/1/2003 Fe-55 3.03 +/- 0.65 3.12 +/- 0.64 3.08

• 0.46 SW-7805, 7806 1211/2003 Sr-90 0.59 +/- 0.32 0.56 +/- 0.33 0.58 +/- 0.23 VE-7399, 7400 1219/2003 Gr. Beta 4.99 +/- 0.15 5.24 +/- 0.15 5.11 +/- 0.11 VE-7399, 7400 1219/2003 K-40 5.04

• 0.46 5.34 +/- 0.74 5.19 +/- 0.43 SW-7540, 7541 1219/2003 Gr. Alpha 2.64 +/- 1.36 2.10 +/- 1.19 2.37 +/- 0.91 SW-7540, 7541 12/9/2003 Gr. Beta 6.62 +/- 1.22 5.89 +/- 1.35 6.25

• 0.91 LW-7736, 7737 12/26/2003 Gr. Beta 2.62 +/- 0.54 2.83 +/- 0.56 2.73 +/- 0.39 AP-7868, 7869 12130/2003 Be-7 0.05 +/- 0.01 0.04 +/- 0.01 0.04 +/- 0.01 AP-7952, 7953 12/30/2003 Be-7 0.04 +/- 0.01 0.04 +/- 0.01 0.04 +/- 0.01 AP-7994, 7995 12/31/2003 Be-7 0.05 +/- 0.02 0.05 +/- 0.01 0.05 +/- 0.01 Note: Duplicate analyses are performed on every twentieth sample received in-house. Results are not listed for those analyses with activities that measure below the LLD.

' Results are reported in units of pCUL, except for air filters (pCiFilter), food products, vegetation, soil, sediment (pCig).

b 200 minute count Ume or longer, resulting In lower error.

IV5-5

TABLE IV-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)a.

Concentrationb Known Control Lab Code Type Date Analysis Laboratory result Activity Limits' STW-972 water 12/01102 Am-241 0.56 +/- 0.06 0.58 +/- 0.09 0.40 - 0.75 STW-972 water 12/01/02 Co-57 57.10 +/- 1.90 57.00 +/- 5.70 39.90 - 74.10 STW-972 water 12/01/02 Co-60 38.30 +/- 0.60 38.20 +/- 3.82 26.74 - 49.66 STW-972 water 12101/02 Cs-134 395.30 +/- 10.10 421.00 +/- 42.10 294.70 - 547.30 STW-972 water 12/01/02 Cs-1 37 316.40 +/- 5.30 329.00 +/- 32.90 230.30 - 427.70 STW-972 water 12/01/02 Fe-55 94.90 +/- 24.50 96.00 +/- 9.60 67.20 - 124.80 STW-972 water 12/01/02 Mn-54 33.40 +/- 0.10 32.90 +/- 3.29 23.03 - 42.77 STW-972 water 12101/02 Ni-63 123.80 +/- 5.50 136.50 +/- 13.70 95.55 - 177.45 STW-972 water 12/01/02 Pu-238 0.66 +/- 0.06 0.83 +/- 0.08 0.58 - 1.08 STW-972 water 12/01/02 Pu-239/40 0.001 +/- 0.001 0.000 +/- 0.000 0.000 - 0.005 STW-972 water 12/01/02 Sr-90 13.80 +/- 1.00 12.31 +/- 1.23 8.62 - 16.00 STW-972 water 12/01/02 Tc-99 128.10 +/- 3.80 132.00 +/- 13.20 92.40 - 171.60 STW-972 water 12/01/02 U-233/4 1.60 +/- 0.09 1.54 +/- 0.15 1.08 - 2.00 STW-972 water 12/01/02 U-238 1.64 +/- 0.09 1.60 +/- 0.16 1.12 - 2.08 STW-972 water 12/01/02 Zn-65 540.40 +/- 9.90 516.00 +/- 51.60 361.20 - 670.80 STSO-987 soil 01/01/03 Co-57 534.36 +/- 2.61 530.00 +/- 53.00 371.00 - 689.00 STSO-987 soil 01/01/03 Co-60 442.16 +/- 2.31 420.00 +/- 42.00 294.00 - 546.00 STSO-987 soil 01/01/03 Cs-134 211.00 +/- 2.30 238.00 +/- 23.80 166.60 - 309.40 STSO-987 soil 01/01/03 Cs-137 849.50 +/- 3.30 832.00 +/- 83.20 582.40 - 1081.60 STSO-987 soil 01/01/03 K-40 716.50 +/- 12.80 652.00 +/- 65.20 456.40 - 847.60 STSO-987 soil 01/01/03 Mn-54 148.76 +/- 2.84 137.00 +/- 13.70 95.90 - 178.10 STSO-987 soil 01/01/03 Ni-63 597.10 +/- 23.50 770.00 +/- 77.00 539.00 - 1001.00 STSO-987 soil 01/01/03 Pu-238 67.05 +/- 3.10 66.90 +/- 6.70 46.83 - 86.97 STSO-987 soil 01/01/03 Pu-239/40 52.80 +/- 3.60 52.70 +/- 5.30 36.90 - 68.50 STSO-987 soil 01/01/03 Sr-90 609.50 +/- 9.80 714.00 +/- 71.40 499.80 - 928.20 STSO-987 soil 01/01/03 U-233/4 99.50 +/- 7.60 89.00 +/- 8.90 62.30 - 115.70 STSO-987 soil 01/01/03 U-238 508.60 +/- 42.20 421.00 +/- 42.10 294.70 - 547.30 STSO-987 soil 01/01/03 Zn-65 492.70 +/- 28.10 490.00 +/- 49.00 343.00 - 637.00

' 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 bAll results are In Bq/kg or Bq/L as requested by the Department of Energy.

' MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP.

IV6-1

TABLE IV-7. Environmental Measurements Latioratory Quality Assessment Program (EML)

Concentration' EML Control Lab Code Type Date Analysis Laboratory results Result' Limitse STW-977 water 03/01/03 Gr. Alpha 304.30 + 53.10 377.50 0.58 - 1.29 STW-977 water 03/01/03 Gr. Beta 615.80 +/- 14.70 627.50 0.61 - 1.43 STW-978 water 03/01/03 Am-241 2.00 +/- 0.10 2.13 0.79 - 1.41 STW-978 water 03/01/03 Co-60 221.30 +/- 1.20 234.00 0.80 - 1.20 S1W-978 0 water 03/01/03 Cs-I 34 23.30 +/- 1.10 30.50 0.80 - 1.30 STW-978 water 03/01/03 Cs-I 37 61.A0 +/-0.60 63.80 0.80 - 1.22 STW-978 ' water 03/01/03 H-3 341.90 +/- 22.70 390.00 0.78 - 2.45 STW-978 water 03/01/03 Pu-238 3.70 +/-0.20 3.33 0.74 - 1.20 STW-978 water 03/01/03 Pu-239/40 4.40 +/-0.10 3.92 0.79 - 1.20 S1W-978 water 03/01/03 Sr-90 4.60 +/-0.30 4.34 0.69 - 1.34 STW-978 water 03/01/03 Uranium 5.10 +/-0.60 4.29 0.75 - 1.33 STSO-979 soil 03/01103 Ac-228 55.60 +/- 2.50 57.60 0.80 - 1.38 STSO-979 soil 03/01103 Am-241 12.42 +/- 0.90 15.60 0.65 - 2.28 STSO-979 soil 03/01/03 Bi-212 57.70 +/- 3.20 60.60 0.50 - 1.34 STSO-979 soil 03/01/03 Bi-214 60.40 +/- 3.20 67.00 0.78 - 1.42 STSO-979 soil 03/01/03 Cs-137 1416.80 +/- 70.00 1450.00 0.80 - 1.25 STSO-979 soil 03/01/03 K-40 653.80 +/- 11.90 636.00 0.80 - 1.32 STSO-979 soil 03101/03 Pb-212 51.10 +/-5.20 57.90 0.78 - 1.32 STSO-979 soil 03/01/03 Pb-214 64.70 +/- 5.10 71.10 0.76 - 1.46 STSO-979 soil 03/01/03 Pu-239/40 24.40 +/- 0.30 23.40 0.71 - 1.30 STSO-979 soil 03101/03 Sr-90 54.50 +/- 2.60 64.40 0.67 - 2.90 STSO-979 soil 03/01/03 Uranium 245.00 +/- 1.50 249.00 0.71 - 1.32 S1VE-980 Vegetation 03/01/03 Am-241 3.10 + 0.20 3.51 0.73 - 2.02 S1VE-980 Vegetation 03/01/03 Cm-244 1.40 +/- 0.50 2.01 0.61 - 1.59 STVE-980 Vegetation 03/01/03 Co-60 12.60 +/- 0.40 12.10 0.80 - 1.44 STVE-980 Vegetation 03/01/03 Cs-137 449.70 +/- 6.20 444.00 0.80 - 1.31 STVE-980 Vegetation 03101/03 K-40 1159.00 +/- 38.60 1120.00 0.79 - 1.39 STVE-980 Vegetation 03/01/03 Pu-239140 4.80 +/- 0.40 5.17 0.69 - 1.31 STVE-980 Vegetation 03/01/03 Sr-90 659.70 + 50.40 650.00 0.55 - 1.21 STAP-981 Air Filter 03/01/03 Am-241 0.27 +/- 0.10 0.34 0.70 - 2.34 STAP-981 Air Filter 03/01/03 Co-60 30.20 +/- 0.30 33.50 0.80 - 1.26 STAP-981 Air Filter 03/01/03 Cs-137 90.30 +/- 1.30 99.70 0.80 - 1.32 STAP-981 Air Filter 03/01/03 Mn-54 41.80 +/- 0.60 43.80 0.80 - 1.35 STAP-981 Air Filter 03/01/03 Pu-238 0.52 +/- 0.10 0.52 0.67 - 1.33 STAP-981 Air Filter 03/01/03 Pu-239140 0.35 +/- 0.10 0.33 0.73 - 1.26 STAP-981 Air Filter 03/01/03 Sr-90 2.50 +/- 0.10 2.80 0.53 - 1.84 STAP-981 Air Filter 03/01/03 Uranium 0.51 +/- 0.10 0.50 0.79 - 2.10 STAP-982 Alr Filter 03101/03 Gr. Alpha 0.90 +/- 0.10 1.17 0.73 - 1.43 STAP-982 Air Filter 03/01/03 Gr. Beta 1.50 +/-0.10 1.50 0.76 - 1.36 IV7-1

TABLE IV-7. Environmental Measurements Laboratory Quality Assessment Program (EML)

Concentration EML Control Lab Code Type Date Analysis Laboratory results Resultb Llmitse STW-992 water 09/02/03 Am-241 9.78 +/- 0.32 8.76 0.79 -1.41 The September, 2003 results are preliminary. Control limits used were taken from the March, 2003 data.

Control limits may vary slightly when the final study Is published.

STW-992 water 09/02/03 Co-60 468.30 +/- 4.10 513.00 0.80 - 1.20 STW-992 water 09102/03 Cs-134 53.90 +/- 0.80 63.00 0.80 - 1.30 STW-992 water 09/02/03 Cs-137 76.10 +/- 1.40 80.30 0.80 - 1.22 STW-992 water 09102/03 H-3 355.20 +/- 12.80 446.30 0.78 - 2.45 STW-992 water 09/02/03 Pu-238 1.71 +/- 0.07 2.07 0.74 - 1.20 STW-992 water 09/02103 Pu-239140 4.24 +/- 0.01 4.99 0.79 - 1.20-STW-992 water 09102/03 Sr-90 6.70 +/- 0.50 7.04 0.69 - 1.34 STW-992 water 09/02/03 Uranium 6.03 +/- 0.14 5.69 0.75 - 1.33 STW-993 water 09/02/03 Gr. Alpha 688.00

• 7.60 622.00 0.58 -1.29 STW-993 water 09/02/03 Gr. Beta 1985.00 +/-111.00 1948.00 0.61 1.4A3 STSO-994 soil 09/02/03 Am-241 19.70 +/- 1.50 18.40 0.65 - 2.28 STSO-994 soil 09/02/03 Cs-137 1928.00 +/- 19.00 1973.00 0.80 - 1.25 STSO-994 soil 09/02/03 K-40 533.00 +/- 79.00 488.00 0.80 - 1.32 STSO-994 soil 09/02/03 Pu-238 15.30 +/- 0.80 14.60 0.59 -2.88 STSO-994 soil 09/02/03 Pu-239/40 32.50 +/- 2.30 30.40 0.71 - 1.30 STSO-994 soil 09/02/03 Sr-90 69.80 +/- 2.30 80.30 0.67 - 2.90 STSO-994 soil 09/02/03 Uranium 228.30 +/- 17.10 259.30 0.71 - 1.32 STAP-995 Air Filter 09102/03 Am-241 0.64 +/- 0.05 0.44 0.70 - 2.34 STAP-995 Air Filter 09/02/03 Co-60 48.50 +/- 0.40 55.10 0.80 - 1.26 STAP-995 Air Filter 09/02/03 Cs-1 37 51.20 +/- 1.10 54.80 0.80 - 1.32 STAP-995 Air Filter 09/02103 Mn-54 53.70 +/- 1.10 58.00 0.80 - 1.35 STAP-995 Air Filter 09102103 Pu-238 0.24 +/- 0.05 0.23 0.67 - 1.33 STAP-995 Air Filter 09/02/03 Pu-239140 0.41 +/- 0.10 0.40 0.73 - 1.26 STAP-995 Air Filter 09/02/03 Sr-90 1.90 +/- 0.10 2.06 0.53 - 1.84 STAP-995 Air Filter 09102/03 Uranium 0.80 +/- 0.06 0.82 0.79 - 2.10 STAP-996 Air Filter 09/02/03 Gr. Alpha 3.23 +/-0.07 3.11 0.73 - 1.A3 STAP-996 Air Filter 09/02/03 Gr. Beta 4.18 +/- 0.03 3.89 0.76 -1.36 Results are reported in Bq/L with the following exceptions: Air Filters (BqlFilter). Soil and Vegetation (Sq/kg).

b The EML result listed Is the mean of replicate determinations for each nuclide +/- the standard error of the mean.

C Control limits are reported by EML as the ratio of Reported Value / EML value.

d A low bias for Cs-134 activity has been observed In the past. No errors have been found In the library or efficiency.

Additional spike analyses will be performed and a correction factored Into the calculation.

Reporting error.

IV7-2