Text

2001 Annual Radiological Environmental Operating Report
	ML021410468
Person / Time
Site:	Byron
Issue date:	05/13/2002
From:	Lopriore R; Exelon Nuclear
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	BYRON 2002-0053
	Download: ML021410468 (154)
	v • d • e

Exelon Generation Company, LLC www.exeloncorp corn Exelkn. Nuclear Byron Station 4450 North German Church Road Byron, IL61010-9794 May 13, 2002 LTR: BYRON 2002-0053 File: 2.12.1523 United States Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Byron Station, Units 1 and 2 Facility Operating License Nos. NPF-37 and NPF-66 NRC Docket Nos. STN 50-454 and STN.50-455

Subject:

2001 Annual Radiological Environmental Operating Report In accordance with Technical Specification 5.6.2, "Annual Radiological Environmental Operating Report," we are submitting the Annual Radiological Environmental Operating Report for Byron Station. This report is required to be submitted to the NRC by May 1 5 'h of each year. Enclosed are two copies of this report. This report contains the results of the radiological environmental and meteorological monitoring programs. The Radioactive Effluent Release Report was submitted under separate cover.

If you have any questions regarding this information, please contact W. Grundmann, Regulatory Assurance Manager, at (815) 406-2800.

Respectfully, Richard P. Lop ~ore Site Vice President Byron Nuclear Generating Station RPL/DAT/Ild Attachment cc: Regional Administrator- NRC Region III NRC Senior Resident Inspector - Byron Station NRC Project Manager- NRR - Byron Station (w/o enclosure)

Office of Nuclear Facility Safety / Illinois Department of Nuclear Safety U. S. Environmental Protection Agency, Air and Radiation Division - Region V

BYRON STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 2001 MAY 2002

TABLE OF CONTENTS Page INTRODUCTION ................................................. ................................................ 1

SUMMARY

............................................................................... 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 Effl uent Pathways .............................................................................. 5 3.3 Assessment of Dose to M ember of Public ...................................................... 5 4.0 SITE METEOROLOGY ...................................................................................... 6 5.0 ENVIRONM ENTAL M ONITORING ...................................................................... 6 5.1 Gamm a Radiation ......................................................................................... 6 5.2 Airborne 1-13 1 and Particulate Radioactivity ................................................. 7 5.3 Terrestrial Radioactivity ................................................................................ 7 5.4 Aquatic Radioactivity .................................................................................... 7 5.5 M ilk .............................................................................................................. 8 5.6 Sample Collections ........................................................................................ 8 5.7 Program M odifications .................................................................................. 8 6.0 ANALYTICAL PROCEDURES ........................................................................... 9 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-1 Station Releases Table 1.1-1 Gaseous Effluents ................................................................ 1-2 Table 1.2-1 Liquid Effluents ................................................................... 1-4 Figure 3.1 Figure 3.1-4 Isodose and Concentration Contours ................................... 1-6 Table 3.1-1 Maximum Doses Resulting from Airborne Releases ............. 1-10 Table 3.2-1 Maximum Doses Resulting from Liquid Discharges ..................................................................... 1-18 Table 3.3-1 10CFR20 Compliance Assessment ....................................... 1-26 Table 3.4-1 Maximum Doses Resulting from Airborne Releases Based on Concurrent Meteorological Data ...................................... 1-30 Environmental Monitoring Figure 5.0-1 Inner and Outer Ring TLD Locations .................................. 1-32 Figure 5.0-2 Onsite Air Sampler Locations .............................................. 1-33 Figure 5.0-3 Offsite Air Sampler Locations ............................................. 1-34 Figure 5.0-4 Ingestion and Waterborne Sample Locations ....................... 1-35 Table 5.0-1 Radiological Environmental Monitoring Locations .............. 1-36 Table 5.0-2 Radiological Environmental Monitoring Program, Sampling Locations and Sample Collection and Analyses .............................................................................. 1-37 Table 5.0 Table 5.0-6 Radiological Environmental Monitoring Program (REMP)

Quarterly Summ ary ............................................................. 1-43 APPENDIX II - METEOROLOGICAL DATA ............................................................. II-1 APPENDIX III - 2001 REMP SAMPLE RESULTS ................................................... III-1 APPENDIX IV - INTERLABORATORY COMPARISON PROGRAM RESULTS ...... IV-1 APPENDIX V - ERRATA DATA (If applicable) .......................................................... V-1 iii

INTRODUCTION Byron Station, a two-unit PWR station, is located about two miles east of the Rock River and approximately three miles southwest of Byron in Ogle County, north central Illinois. Each reactor is designed to have a capacity of 1165 MW net. 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, 1-131, and particulate radioactivity in offsite areas are calculated using isotopic composition of effluents and meteorological data.

Environmental monitoring is conducted by sampling at indicator and control (background) locations in the vicinity of Byron Station to measure changes in radiation or radioactivity levels that may be attributable to station operation. If significant changes attributable to Byron Station are measured, these changes are correlated with effluent releases. External gamma radiation exposure from noble gases and internal dose from 1-131 in milk are the critical pathways at this site; however, an environmental monitoring program is conducted which also includes other pathways.

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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 6.04E-03 mrem. The annual limit on TEDE is 100 mrem.

The assessment of radiation doses to the public is performed in accordance with the ODCM. The results of these analyses confirm that the Station is operating in compliance with 10CFR50 Appendix I, IOCFR20 and 40CFR190.

There were no additional operational controls implemented which affected the areas of radiological effluents in 2001.

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 1.75E+00 curies of fission and activation gases were released with a maximum quarterly release rate of 4.27E+00 [Ci/sec, for both units.

A total of 0.OOE+00 curies of 1-131 were released during the year with a maximum quarterly average release rate of 0.OOE+00 gCi/sec.

A total of 9.68E-06 curies of beta emitters were released as airborne particulate matter with a maximum quarterly average release rate of 8.85E-07 [tCi/sec. Alpha-emitting radionuclides were below detectable limits.

A total of 6.82E+00 curies of tritium were released with a maximum average quarterly release rate of 3.65E-01 RCi/sec.

1.2 Liquids Released to Rock River A total of 1.17E+07 liters of radioactive liquid waste (prior to dilution) containing 2.85E-01 curies (excluding tritium, noble gases and alpha) were discharged from the station. These wastes were released at a maximum quarterly average concentration of 1.51E-08 ItCi/ml. A total of 1.21E+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 the Barnwell disposal facility or to waste processors. For detail, refer to Byron Station 2001 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 GammaDoseRates 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 6.07E-06 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 7.68E-06 mrem (Table 3.4-1). The maximum gamma air dose was 8.48E-05 mrad (Table 3.1-1) based on measured effluents and average meteorological data, and 5.99E-06 mrad based on concurrent meteorological data (Table 3.4-1).

3.1.1.2 Beta Air and Skin Dose Rates The range of beta particles in air is relatively small (on the order of a few meters or less); consequently, plumes of gaseous effluents may be considered "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 2

7.0 mg/cm and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year, based on measured effluents and average meteorological data, was 1.58E-05 mrem (Table 3.1-1). The skin dose based on concurrent meteorological data was 1.45E-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 2.76E-05 mrad (Table 3.1-1). The beta air dose based on concurrent meteorological data was 9.49E-06 mrad (Table 3.4-1).

3.1.2 Radioactive Iodine The human thyroid exhibits a significant capacity to concentrate ingested or inhaled iodine. The minimal levels of radioiodine, 1-131, released during routine operation of the station may be made available to man resulting in a dose to the thyroid. The principal pathway of interest for this radionuclide is ingestion of radioiodine in milk. Calculations made for 2001 and previous years indicate that contributions to doses from inhalation of 1-131 and 1-133 and ingestion of 1-133 in milk are negligible.

3.1.2.1 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 4

factor which accounts for the phenomenon of elemental iodine deposition on the ground. The maximum offsite concentration is estimated to be 3.66E-07 pCi/mn3 for the year (Table 3.4-1).

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 1-131 and the source of milk was taken to be the nearest dairy farm with the cows pastured from May through October. The maximum thyroid dose was less than 4.13E-03 mrem during the year (Table 3.1-1 [child]).

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 2.97E-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 4.84E-03 mrem (child) and no organ dose exceeded 6.56E-03 mrein (Table 3.2-1 [adult]).

3.3 Assessment of Dose to Member of Public During the period January to December, 2001, 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 Radiological Effluent Technical Standards (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 mremn to any organ during any calendar quarter;

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

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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 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 99.8% during 2001 (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 CaF 2 thermoluminescent dosimeters (TLDs) processed by an off-site vendor. Previous year data had been acquired using CaSO 4 dosimeters processed in-house. Each location consists of 2 TLD sets. The quarterly average external radiation dose for the year was 19.9 mR at the indicator locations and 17.1 mR at the control locations. TLD results are listed in Section 4.0 of Appendix III and locations are shown in Figure 5.0-1.

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Quarterly external radiation dose at indicator air sampling locations averaged 19.2 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) and 2000 (14.4 mR). These differences are not statistically significant and may be attributed to the different style of TLD used to measure gamma radiation.

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 pCimi3 throughout the year in all samples.

Gross beta concentrations ranged from 0.004 to 0.054 pCi/n3 and averaged 0.024 pCi/m 3, which is slightly 3lower than the average concentrations in 1985 3

(0.026 pCimi), 1986 (0.026 pCi/in), except for the period from May 12 through June 9, when it was influenced 3 by the~33nuclear reactor accident at Chernobyl), 1987 (0.027 pCi/m3 ), 1988 (0.031 pCi/mr), 1989 (0.026 pCi/m3 ), and similar to 1990 333 3 3

(0.021 pCi/m ), 1991 (0.020 pCi/mi), 1992 (0.022 pCi/m), 1993 (0.021 pCi/im), 1994 3 3 (0.021 pCim 3), 1995 (0.022 pCi/m3), 1996 (0.022 pCi/m ), 1997 (0.021 pCi/m ), 1998 3

(0.022 pCi/in 3 ), 1999 (0.025 pCi/m 3) and 2000 (0.025 pCi/m ).

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 2000.

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 results were similar to those obtained in 1985 through 2000.

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 3.3 pCi/L, ranging from 7

1.7 to 4.1 pCi/L; BY-29 (Byron, Upstream) gross beta averaged 3.3 pCi/L, ranging from 2.0 to 5.8 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 2000.

At Oregon Pool of Rock River, Downstream (BY-12) tritium averaged 2,373 pCi/L, ranging from 1,708 to 3,618 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 2000.

Sediment samples were collected twice 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 2000.

5.5 Milk Milk samples were collected monthly from November through April and biweekly from May through October and analyzed for Iodine-131 and gamma-emitting nuclides.

Locations are shown in Figure 5.0-4. Iodine-131 activity was below the LLD level of 0.5 (May through October) and 5.0 (November through April) pCi/L in all samples.

Cs-134, Cs-137 and Ba/La-140 were below the LLD levels of 15, 18 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 2000, except during several months following the accident at Chernobyl, which occurred on April 26, 1986. During those months 1-131 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 New well water location, BY-14-1, 3200 German Church Road, replaced former location, BY-14, ComEd Offsite Well, in August of 2001.

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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.

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 27, 2001.

Results of the milch animal and nearest cattle census are presented on pages 40-41 of Appendix III.

8.0 NEAREST RESIDENCES CENSUS The census of nearest residences within a 6.2-mile radius was conducted by W. Mueller on August 27, 2001.

Results of the nearest residence census are presented on page 42 of Appendix III.

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 2001.

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APPENDIX I DATA TABLES AND FIGURES I-1

Table 1.1-1 BYRON NUCLEAR POWER STATION UNIT 1 DOCKET NUMBER STN-50-454 RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY, 2001 THROUGH DECEMBER, 2001 GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES I UNITS I 1st Quarter I 2nd Quarter I 3rd Quarter I 4th Quarter i A. FISSION AND ACTIVATION GAS RELEASES 1.Total Release Activity: I Ci 2.18E-01. 2.68E-o1 1.23E-01 3.04E-01

2. Maximum Release Rate for Quarter: [ uCilsec 4.27E+00 1.56E+00 1.56E+00 3.74E+00

3. % of Tech. Spec. Limits *

a. Whole Body (500 mrem/yr): I 0.00 I 0.00 0.00 I 0.00

b. Skin (3000 mrem/yr): % 0.00- 0.00 0.00 0.00

4. % of 10CFR50 Limits

a. Gamma Quarterly (5 mrad): % 0.00 0.00 0.00 0.00

b. Beta Quarterly (10 mrad): % 0.00 0.00 0.00 0.00

c. Gamma Annual (10 mrad): % 0.00 0.00 0.00 0.00

d. Beta Annual (20 mrad): %0.00 0.00 0.00 0.00 B. IODINE RELEASES

1. Total 1-131 Activity: Ci <LLD <LLD <LLD <LLD

2. Average 1-131 Release Rate: uCVsec O.OOE+00 0.OOE.00 0.OOE+00 0.OOE+00 C. PARTICULATE (>8 day half-life) RELEASES

1. Total Particulate Activity: Ci <LLD 6.96E-06 <LLD '<LLD

2. Average Particulate Release Rate: uCi/sec 0.OOE+00 8.85E-07 0.00E+00 0.OOE+00

3. Gross Alpha Activity for Quarter: Ci <LLD_ <LLD <LLD <LLD D. TRITIUM RELEASES

1. Total Tritium Activity: Ci 8.00E-01 2.462-01 4.982E-01 .99E-02

2. Average Tritium Release Rate: uCifsec 1.03E-01 I3.12E-02 6.27E-02 8.79E-02

% of Tech. Spec. limits Is based on the maximum release rate for the period considered.

1-2

Table 1.1-1 (continued)

BYRON NUCLEAR POWER STATION UNIT 2 DOCKET NUMBER STN-50-455 RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY, 2001 THROUGH DECEMBER, 2001 GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES i UNITS 1 1st Quarter I 2nd Quarter I 3rd Quarter I 4th Quarter A. FISSION AND ACTIVATION GAS RELEASES

1. Total Release Activity: [I Cl I l4.27E+00 2.18E-01 II 2.73E-01 9.13E-02 TI 2.55E-01

2. Maximum Release Rate for Quarter: i uCisec 1.22E+00 I9.84E.01 3.74E+00

3. % of Tech. Spec. Limits:*

a. Whole Body (500 mrem/yr):

I % % I 4.2E00

°00°001I 0.2E00 00 0.8E06 1 0.7E001 00

b. Skin (3000 mrem/yr): 0.00 [ 0-00 0.00 0.00

4. % of 10CFR50 Limits

a. Gamma Quarterly (5 mrad): 0/0 0.00 0.00 0.00 0.00

b. Beta Quarterly (10 mrad): 0.00 0.00 0.00

c. Gamma Annual (10 mrad): 00.00 0.00 0.00

d. Beta Annual (20 mrad): % 0.00 0.00o 0.00 0.00 B. IODINE RELEASES

1. Total 1-131 Activity: Ci <LLD [ LD <LLD <LLD

2. Average 1-131 Release Rate: uCiisec 1_0.0OE+00 0.00E+00 0.OOE+00

<.OOE+00 C. PARTICULATE (>8 day half-life) RELEASES

1. Total Particulate Activity: Ci <LLD 1.18E-06 1.36E-06 1.78E-07

2. Average Particulate Release Rate: uCi/sec 0.OOE+00 1.50E-07 1.71 E-07 2.24E-08

3. Gross Alpha Activity for Quarter: Ci <LLD <LLD <LLD <LLD D. TRITIUM RELEASES

1. Total Tritium Activity: , C I 2.84E+00 7I.26E-01 1 4.16E-01

2. Average Tritium Release Rate: uCVsec 3.65E-01 9.23E-02 5.23E-02 7.53E-02

% of Tech. Spec. limits is based on the maximum release rate for the period considered.

1-3

Table 1.2-1 BYRON NUCLEAR POWER STATION UNIT 1 DOCKET NUMBER STN-50-454 RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY, 2001 THROUGH DECEMBER, 2001 LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES L. FISSION AND ACTIVATION PRODUCT RELEASES

1. Total Activity Released: Ci 1.66E-02 3.37E-02 5.54E-02 I3.68E-02

2. Average Concentration uCi/ml 5.18E-09 1.04E-08 1.51E-08 1.12E-08 Released For Quarter:

3. % of 10CFR50 Limits

a. Quarterly Whole Body % 4.OOE-02 3.00E-02 1 4.OOE-02 I 5.OOE-02 (1.5 mrem):

b. Quarterly Any Organ % 1.00E-02 2.OOE-02 I 2.OOE-02 2.00E-02 (5.0 mrem):

c. Annual Whole Body r -/ I 2,00E-02 2.OOE-02 2."00E02 3.00E4°2 (3.0 torem):

d. Annual Any Organ % o.OOE+00 1.OOE-02 I 1.OOE-02 1.0E-020 (10.0 mrem):

UNITS 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter M. TRITIUM

1. Total Activity Released: Ci 3.03E+02 I 1.95E+02 3.22E+02 3.85E+02

2. Average Concentration uCi/mI 9.47E-05 6.04E-05 8.75E-05 1. 7E-04 Released For Quarter

3. % of Tech Spec Limit % 0.95 0.60 0.88 1.17 (1.OOE-2 uCi/ml):

N. DISSOLVED NOBLE GASES

1. Total Activity Released: Ci 2.64E-03 5.1OE-03 ,.91E-05 I 6.86E-04I

2. Average Concentration uCi/mI 8.24E-10 1.58E-09 2.42E-11 2.09E-10 Released For Quarter:

3. % of Tech. Reqt. Manual Limit % 4.12E-04 7.90E.04 1.21E-05 1.04E-04 (2.OOE-4 uCi/mi):

0, GROSS ALPHA

1. Total Activity Released: Ci 0.OOE+00 0.OOE+00 0.00E+00 0.OOE+00

2. Average Concentration uCitml 0.OOE+00 0.OOE+00 0.00E+00 0.00E+00 Released For Quarter P. VOLUME OF WASTE liters I 1.23E+06 1.47E+06 1.44E+06 I 1.70E+06 RELEASED PER UNIT:

Q. VOLUME OF DILUTION liters 3.20E+09 3.23E+09 3.68E+09 3.29E+09 WATER PER UNIT:

1-4

Table 1.2-1 (continued)

BYRON NUCLEAR POWER STATION UNIT 2 DOCKET NUMBER STN-50-455 RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY, 2001 THROUGH DECEMBER, 2001 LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES L. FISSION AND ACTIVATION PRODUCT RELEASES

1. Total Activity Released: Ci 1.66E-02 3.37E-02 I 5.54E-02 3I68E-02

2. Average Concentration uCi/ml 5.18E-09 1.04E-08 1.51E-08 1.12E-08 Released For Quarter:

3. % of 10CFR50 Limits

a. Quarterly Whole Body I I400E-02 I300OE-02 I4,00E-02 5500E-2 (1.5 mrem):

b. Quarterly Any Organ % 1.00E-02 2.OOE-02 2.OOE-02 200E-02 (5.0 mrem):

c. Annual Whole Body .%

2OOE-02 2.OOE-02 2.OOE-02 3.00E-02 (3.0 mrem):

d. Annual Any Organ I% OOOE+00 1.00E-02 1.00E-02 I 1.00E-02 (10.0 mrem):

UNITS 1st Quarter 2nd Quarter 3rd QuarterI 4th Quarter [

M. TRITIUM

1. Total Activity Released: C! 3,03E+02 1.95E+02 3a.22E+02 I3.85E+02

2. Average Concentration uCi/ml 9.47E-05 6.04E-05 8.75E-05 1.17E-04 Released For Quarter.

3. % of Tech Spec Limit % 0.95 0.60 0.88 117 (1.OOE-2 uCilml):

N. DISSOLVED NOBLE GASES

1. Total Activity Released: Ci 2.64E-03 5.10E-03 8.91E-05 6.86E-04

2. Average Concentration uCi/mi 8.24E-10 1.58E-09 2.42E-11 2.09E-10 Released For Quarter:

3. % of Tech. Reqt. Manual Limit I% [4.12E-04 7.90E-04 1.21E-05 -1.04E-04 (2.OOE-4 uCi/ml):

0. GROSS ALPHA

1. Total Activity Released: Ci 0.OOE+00 0.OOE+00 0.OOE*00 0.OOE+00

2. Average Concentration uCi/ml 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 Released For Quarter:

P. VOLUME OF WASTE liters I 1.23E+06I 1.47E+06 1.44E+06 I 1.70E+06 RELEASED PER UNIT:

Q. VOLUME OF DILUTION liters 3.20E+09 3.23E+09 I 3.68E+09 F3.29E+097 WATER PER UNIT:

I-5

Figure 3.1-1 Estimated Cumulative Gamma Dose (in mrem) from the Byron Station for the period January-December 2001 Isopleth Labels Small figure - multiply by 10"8 Large figure - multiply by 10"'

2 i M5 O

. 064

~~s

[o r lo 100 0 5Pa0t.

20 mi 1-6

Figure 3.1-2 Estimated Total Concentrations (in pCi/m3) of Noble Gases from the Byron Station for the period January-December 2001 Isopleth Labels Small figure - multiply by 104 Large figure - multiply by 104 0 5 10 15 20 mi 1-7

Figure 3.1-3 Estimated Total Concentrations (in pCi/m3) of todines from the Byron Station for the period January-December 2001 Isopleth Labels Small figure - multiply by 10-9 Large figure - multiply by 10*9 0

oPecotonica ROCKFORD

-64 MtWNR Ioo DixonAshlon 9 .5 to1.5 o ,0 1-8

Figure 3.1-4 Estimated Total Concentrations (in pCi/m3) of Particulates from the Byron Station for the period January-December 2001 Isopleth Labels Small figure - multiply by 10-3 Large figure - multiply by 10-4 9 Io '5 20 mi 1-9

Table 3.1-1 BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 INFANT RECEPTOR IST 2ND 3RD 4TH QUARTER QUARTER QUARTER ANNUAL TYPE QUARTER JAN-MAR APR-JUN JUL-SEP OCT-DEC 8.39E-07 1.70E-06 4.63E-06 8.65E-07 1.23E-06 GAMMA AIR (SSE ) (SSE )

(SSE) (SSE) (SSE )

(MRAD) 1.45E-05 4.13E-06 2.03E-06 4.99E-06 BETA AIR 3.34E-06 (SSE) (SSE) (SSE ) (SSE )

(MRAD) (SSE )

6.10E-07 1.22E-06 3 .32E-06 TOT. BODY 6. 11E-07 8.76E-07 (SSE) (SSE) (SSE)

(MREM) (SSE ) (SSE)

1. 40E-06 3.14E-06 8.50E-06 SKIN 1.71E-06 2.24E-06 (SSE) (SSE) (SSE)

(MREM) (SSE) (SSE) 2.20E-04 3.07E-04 9. BE- 04 ORGAN 3.51E-04 1.10E-04 (NE) (NE (NE)

(MREM) (NE ) (NE)

LUNG LIVER LIVER LUNG LIVER THYRO ID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GI LLI GI LLI GI_LLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I INFANT RECEPTOR

% OF APP I----------.

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF JAN-MAR APR -JUN JUL-SEP OCT-DEC OBJ APP. I OBJ 0.00 0.00 0.00 10.0 0.00 GAMMA AIR (MRAD) 5.0 0.00 0.00 0.00 0.00 0.00 20.0 0.00 BETA AIR (MRAD) 10.0 0.00 0.00 0.00 5.0 0.00 TOT. BODY (MREM) 2.5 0.00 0.00 0.00 15.0 0.00 SKIN (MREM) 7.5 0. .o 0.00 0.00 0.00 15.0 0.01 ORGAN (MREM) 7.5 0.00 0.00 LIVER LUNG LIVER LIVER LUNG THYROID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GILLI GILLI GI_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 I-10

Table 3.1-1 (continued)

BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 CHILD RECEPTOR 1ST 2ND 3RD 4TH QUARTER QUARTER QUARTER QUARTER ANNUAL TYPE APR-JUN JUL-SEP OCT-DEC JAN-MAR 1.23E-06 8.39E-07 1.70E-06 4.63E-06 GAMMA AIR 8.65E-07 (SSE ) (SSE ) (SSE) (SSE)

(MRAD) (SSE) 4.13E-06 2.03E-06 4.99E-06 1.45E-05 BETA AIR 3.34E-06 (SSE ) (SSE) (SSE) (SSE )

(MRAD) (SSE )

6.10E-07 1.22E-06 3.32E-06 TOT. BODY 6.11E-07 8.76E-07 (SSE) (SSE) (SSE) (SSE)

(MREM) (SSE) 2.24E-06 1.40E-06 3.14E-06 8.50E-06 SKIN 1.71E-06 (SSE) (SSE ) (SSE) (SSE )

(MREM) (SSE) 2.56E-04 8.64E-04 3.40E-04 1.53E-03 ORGAN 2.47E-04 (SSE ) (SSE) (S (SE)

(MREM) (NE)

LIVER LUNG LIVER LIVER LUNG THYROID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GI_LLI GILLI GI_LLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I CHILD RECEPTOR

OF APPI.

QTRLY IST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I 5.0 0.00 0.00 0.00 0.00 10.0 0.00 GAMMA AIR (MRAD) 10.0 0.00 0.00 0.00 0.00 20.0 0.00 BETA AIR (MRAD) 2.5 0.00 0.00 0.00 0.00 5.0 0.00 TOT. BODY (MREM) 7.5 0.00 0.00 0.00 0.00 15.0 0.00 SKIN (MREM) 7.5 0.00 0.00 0.01 0.00 15.0 0.01 ORGAN (MREM)

LIVER LUNG LIVER LIVER LUNG THYROID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GILLI G1_LLI GI_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-11

Table 3.1 -1 (continued)

BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH QUARTER QUARTER QUARTER QUARTER TYPE OCT-DEC JAN-MAR APR-JUN JUL-SEP 8.65E-07 1.23E-06 8.39E-07 1.70E-06 4.63E-06 GAMMA AIR (SSE) (SSE)

(SSE) (SSE) (SSE)

(MRAD) 1.45E-05 3 .34E-06 4. 13E-06 2.03E-06 4.99E-06 BETA AIR (SSE)

(SSE) (SSE) (SSE) (SSE)

(MRAD) 1.22E-06 3.32E-06

6. 11E-07 8.76E-07 6.10E-07 TOT. BODY (SSE)

(SSE) (SSE) (SSE) (SSE )

(MREM) 8.50E-06 1.71E-06 2.24E-06 1.40E-06 3.14E-06 SKIN (SSE) (SSE)

(MREM) (SSE) (SSE) (SSE)

1. 61E-04 1.70E-04 5.63E-04 2.44E-04 1.04E-03 ORGAN (s (S (MREM) (NE) (SE ) (SSE)

LIVER LUNG LIVER LIVER LUNG THYROID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GI LLI GI_LLI GILLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I TEENAGER RECEPTOR

W OF APP I. ---

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I 5.0 0.00 0.00 0.00 0.00 10.0 0.00 GAMMA AIR (MRAD) 10.0 0.00 0.00 0.00 0.00 20.0 0.00 BETA AIR (MRAD) 2.5 0.00 0.00 0.00 0.00 5.0 0.00 TOT. BODY (MREM) 7.5 0.0.0 0.00 0.00 0.00 15.0 0.00 SKIN (MREM) 0.00 0.01 0.00 15.0 0.01 ORGAN (MREM) 7.5 0.00 LIVER LUNG LIVER LIVER LUNG THYROID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GILLI GI_LLI GI_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-12

Table 3.1-1 (continued)

BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 ADULT RECEPTOR 1ST 2ND 3RD 4TH QUARTER QUARTER QUARTER ANNUAL TYPE QUARTER APR-JUN J UL- SEP OCT -DEC JAN-MAR a .39E-07 1.70E-06 4.63E-06 GAMMA AIR 8.65E-07 1,23E-06 (SSE) ( SSE ) (SSE ) (SSE)

(MRAD) (SSE) 2 .03E-06 4.99E-06 1.45E-05 BETA AIR 3.34E-06 4.13E-06 (SSE)) SSE ) (SSE) (SSE)

(MRAD) (SSE) 1.22E-06 3.32E-06 TOT. BODY 6.11E-07 8.76E-07 6 *.I0E-07 (SSE) SSE ) (SSE) (SSE)

(MREM) (SSE )

2.24E-06 1 .40E-06 3.14E-06 8.50E-06 SKIN 1.71B-06

( SSE) (SSE) (SSE )

(MREM) (SSE ) (SSE) 1.69E-04 5*.02E-04 2.93E-04 1.17E-03 ORGAN 2.24E-04 (MREM) (S (S ) SE ) (S ) (S LIVER GILLI LIVER GILLI LIVER THYROID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GI LLI GI LLI GI_LLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I ADULT RECEPTOR OF APP

I.

PI--%

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I 5.0 0.00 0.00 0.00 0.00 10.0 0.00 GAMMA AIR (MRAD) 10.0 0.00 0.00 0.00 0.00 20.0 0.00 BETA AIR (MRAD) 0.00 2.5 0.00 0.00 0.00 0.00 5.0 TOT. BODY (MREM)

0. q0 0.00 0.00 0.00 15.0 0.00 SKIN (MREM). 7.5 0.00 0.00 0.01 0.00 15.0 0.01 ORGAN (MREM) 7.5 LIVER GILLI LIVER GILLI LIVER THYROID THYROID THYROID KIDNEY KIDNEY KIDNEY LUNG LUNG LUNG GILLI GI LLI GI_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-13

Table 3.1-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 INFANT RECEPTOR IST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR- JUN JUL-SEP OCT-DEC GAMMA AIR 1. 35E-06 1. 01E-06 3.38E-07 I. 1SE-06 3.85E-06 (MRAD) (SSE ) (SSE ) (SSE) (SSE) (SSE )

BETA AIR 3.57E-06 4.08E-06 1.37E-06 4.10E-06 1.31E-05 (MRAD) (SSE) (SSE ) (SSE ) (SSE) (SSE )

TOT. BODY 9.74E-07 7.13E-07 2.38E-07 8.24E-07 2.75E-06 (MREM) (SSE ) (SSE ) (SSE ) (SSE) (SSE )

SKIN 2.34E-06 1.98E-06 6.73E-07 2.33E-06 7.33E-06 (MREM) (SSE ) (SSE) (SSE ) (SSE ) (SSE)

ORGAN 1.24E-03 3.24E-04 1.85E-04 3.20E-04 2.07E-03 (MREM) (NE) (NE ) (NE ) (NE ) (NE)

THYROID LUNG LUNG LUNG THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I INFANT RECEPTOR OF -%

APP I.

QTRLY IST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 0.00 0.00 0.00 0.00 10.0 0.00 BETA AIR (MRAD) 10.0 0.00 0.00 0.00 0.00 20.0 0.00 TOT. BODY (MREM) 2.5 0.00 0.00 0.00 0.00 5.0 0.00 SKIN (MREM) 7.5 0.00 0.00 0.00 0.00 15.0 0.00 ORGAN (MREM) 7.5 0.02 0.00 0.00 0.00 15.0 0.01 THYROID LUNG LUNG LUNG THYROID RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-14

Table 3.1-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 01/01/01 TO 12/31/01 CALCULATED 03/24/02 PERIOD OF RELEASE -

CHILD RECEPTOR 1ST 2ND 3RD 4TH Q*UARTER QUARTER ANNUAL QUARTER QUARTER TYPE OCT -DEC JAN-MAR APR-JUN 5 IlL-SEP 1.16E-06 3. 85E-06 1.35E-06 1.01E-06 3 .38E-07 GAMMA AIR SSE ) (SSE ) (SSE)

(SSE) (SSE)

(MRAD) 4.10E-06 1.31E-05 3.57E-06 4.08E-06 1 .37E-06 BETA AIR (SSE ) (SSE)

(SSE) (SSE) SSE )

(MRAD) 8.24E-07 2.75E-06 9.74E-07 7.13E-07 2 .38E-07 TOT. BODY SSE ) (SSE) (SSE )

(SSE) (SSE)

(MREM) 2.33E-06 7.33E-06 2.34E-06 1.98E-06 6 .73E-07 SKIN (SSE) (SSE)

(SSE) (SSE) (SSE)

(MREM) 6.65E-04 2. 60E-03 8.77E-04 7.59E-04 7 .25E-04 ORGAN (SE ) (S (NE) (SSE) SSE)

(MREM)

THYROID LUNG GILLI GILLI GILLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I CHILD RECEPTOR

% OF APP I. - ...........

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF JUL-SEP OCT-DEC OBJ APP. I OBJ JAN-MAR APR-JUN 0.00 0.00 10.0 0.00 5.0 0.00 0.00 GAMMA AIR (MRAD) 0.00 20.0 0.00 10.0 0.00 0.00 0.00 BETA AIR (MRAD) 0.00 0.00 5.0 0.00 2.5 0.00 0.00 TOT. BODY (MREM) 0.00 15.0 0.00 7.5 0.00 0.00 0.00 SKIN (MREM) 0.01 15.0 0.02 7.5 0.01 0.01 0.01 ORGAN (MREM)

GILLI THYROID LUNG GI_LLI GI_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-15

Table 3.1-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH QUARTER QUARTER QUARTER ANNUAL TYPE QUARTER APR-JUN JUL-SEP OCT-DEC JAN-MAR 3.38E-07 1.16E-06 3.85E-06 1.35E-06 1,01E-06 GAMMA AIR (SSE)

(SSE) (SSE) (SSE ) (SSE)

(MRAD) 1.37E-06 4.10E-06 1.31E-05 3.57E-06 4.08E-06 (SSE)

BETA AIR (SSE) (SSE)

(SSE) (SSE)

(MRAD) 2.38E-07 8.24E-07 2.75E-06 9.74E-07 7.13E-07 (SSE)

TOT. BODY (SSE)

(SSE) (SSE) (SSE)

(MREM) 6.73E-07 2.33E-06 7.33B-06 2.34E-06 1.98E-06 SKIN (SSE) (SSE) (SSE)

(SSE) (SSE)

(MREM) 4.74E-04 4.40E-04 1.85E-03 5.72E-04 5.02E-04 ORGAN (SE) (S (MREM) (NE ) (SE ) (SSE)

THYROID LUNG GILLI GI_LLI GI_LLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I TEENAGER RECEPTOR

% OF APP I. ------------.

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF JUL-SEP OCT-DEC OBJ APP. I OBJ JAN-MAR APR-JUN 0.00 0.00 10.0 0.00 GAMMA AIR (MRAD) 5.0 0.00 0.00 0.00 0.00 20.0 0,00 10.0 0.00 0.00 BETA AIR (MRAD) 0.00 5.0 0.00 2.5 0.00 0.00 0.00 TOT. BODY (MREM) 0.00 15.0 0.00 7.5 0.00 0.00 0.00 SKIN (MREM) 15.0 0.01 7.5 0.01 0.01 0.01 0.01 ORGAN (MREM)

GILLI THYROID LUNG GI_LLI GILLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-16

Table 3.1-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 ADULT RECEPTOR 1ST 2ND 3RD 4TH QUARTER QUARTER QUARTER ANNUAL TYPE QUARTER APR- JUN JUL-SEP OCT-DEC JAN-MAR 3 . 38E-07 1.16E-06 3.85E-06 1.35E-06 1. 01E-06 GAMMA AIR (SSE) (SSE) (SSE )

(MRAD) (SSE) (SSE) 1.37E-06 4.10E-06 1.31E-05 BETA AIR 3.57E-06 4.08E-06 (SSE) (SSE) (SSE)

(MRAD) (SSE) (SSE) 2.38E-07 8.24E-07 2.75E-06 TOT. BODY 9.74E-07 7.13E-07 (SSE ) (SSE ) (SSE)

(MREM) (SSE ) (SSE) 6.73E-07 2.33E-06 7. 33E-06 SKIN 2.34E-06 1.98E-06 (SSE ) (SSE) (SSE)

(MREM) (SSE) (SSE) 4.98E-04 4.23E-04 4.54E-04 2.15E-03 ORGAN 7.95E-04 (SE ) (S (S (MREM) (S ) (S )

GILLI GILLI THYROID GILLI GILLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10CFR 50 APP. I ADULT RECEPTOR

% OF APP I- --------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF JUL-SEP OCT-DEC OBJ APP. I OBJ JAN-MAR APR-JUN 0.00 0.00 0.00 0.00 10.0 0.00 GAMMA AIR (MRAD) 5.0 0.00 0.00 0.00 0.00 0.00 20.0 BETA AIR (MRAD) 10.0 0.00 0.00 0.00 0.00 5.0 0.00 TOT. BODY (MREM) 2.5 0.00 0.00 15.0 0.00 SKIN (MREM) 7.5 0.00 0.00 0.01 0.01 15.0 0.01 ORGAN (MREM) 7.5 0.01 0.01 GI_LLI THYROID GI LLI GILLI GI_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-17

Table 3.2-1 BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 INFANT RECEPTOR IST 2ND 3RD 4TH QUARTER QUARTER QUARTER QUARTER AN]IUAL M

DOSE TYPE JAN-MAR APR-JUN JUL-SEP OCT-DEC S.23E-04 3.36E-04 5.55E-04 6.63E-04 2. OBE-03 TOTAL BODY OBE-03 INTERJ S.23E-04 5AL 3.37E-04 5.55E-04 6.64E-04 2.

ORGAN _LLI GI_LLI THYROID GI_LLI GI_LLI GI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR 50 APP. I

%OF APP I. - -----------

QTRI jY IST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF JUL-SEP OCT-DEC OBJ APP. I OBJ T JAN-MAR APR-JUN 0.04 0.04 3.0 0.07 TOTAL BODY (MREM) 1. .5 0.03 0.02 0.01 10.0 0.02 CRIT. ORGAN(MREM) 5. .0 0.01 0.01 0.01 GILLI THYROID GILLI GI_LLI GI_LLI RESULTS BWASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-18

Table 3.2-1 (continued)

BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 CHILD RECEPTOR IST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER AN NUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 6.OOE-04 4.02E-04 6.37E-04 7.77E-04 2. 42E-03 BODY INTER] NAL 6.25E-04 5.23E-04 7.13E-04 9.06E-04 2. 77E-03 ORGAN LLI GILLI GILLI GI_LLI GI_LLI GI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR 50 APP. I OF APP-% I. - ....

QTRI iY IST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ 2%PP. I 0.03 0.04 0.05 3.0 0.08 TOTAL BODY (MREM) 1..5 0.04 0.01 0.01 0.02 10.0 0.03 CRIT. ORGAN(MREM) 5. .0 0.01 GI_LLI GILLI GILLI GILLI G I_LLI RESULTS BEASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-19

Table 3.2-1 (continued)

BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH DOSE QUARTER QUARTER QUARTER QUARTER AN) tUAL rlYPE JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 3.61E-04 2.44E-04 3.83E-04 4.69E-04 1. 46E-03 BODY 41E-03 INTER] UAL 4.36E-04 5.66E-04 5.99E-04 8.10E-04 2.

ORGAN _LLI GI LLI GI LLI GI LLI GI LLI GI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR 50 APP. I

% OF APP I. -

QTR3LY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OBLi JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I 0.02 0.02 0.03 0.03 3.0 0.05 TOTAL BODY (MREM) 1.5 0.01 0.01 0.02 10.0 0.02 CRIT. ORGAI N(MREM) 5.0 0.01 0ILLI GILLI GI_LLI GILLI GILLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-20

Table 3.2-1 (continued)

BYRON STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 ADULT RECEPTOR IST 2ND 3RD 4TH DOSE ]TYPE QUARTER QUARTER QUARTER QUARTER AK bUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 5.01E-04 3.34E-04 5.31E-04 6.46E-04 2. OIE-03 BODY INTERI 9AL 6.07E-04 7.53E-04 8.38E-04 1.09E-03 3. 28E-03 ORGAN GILLI GI LLI GILLI GI LLI GI LLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR SO APP. I

% OF APP ---I. - -----------

QTRI ly IST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF APR-JUN JUL-SEP OCT-DEC OBJ 2kPP. I OBJ JAN-MAR TOTAL BODY (MREM) 1.5 0.03 0.02 0.04 0.04 3.0 0.07 CRIT. ORGAN[(MREM) 5.0 0.01 0.02 0.02 0.02 10.0 0.03 GI_LLI GI_LLI GI_LLI GI_LLI G I_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-21

Table 3.2-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 INFANT RECEPTOR IST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER AN NUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 5.23E-04 3.36E-04 5.55E-04 6.63E-04 2. 08E-03 BODY INTER NAL 5.23E-04 3.37E-04 5.55E-04 6.64E-04 2. 08E-03 ORGAN _LLI GI_LLI THYROID GI_LLI GI_LLI GI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR 50 APP. I

% OF APP I. ------------

QTRI LY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF IAPP.

OCT-DEC OBJ I OBJ JAN-MAR APR-JUN JUL-SEP 0.03 0.02 0.04 0.04 3.0 0.07 TOTAL BODY (MREM) I. .5 0.02 CRIT. ORGAN(MREM) 5. .0 0.01 0.01 0.01 0.01 10.0 GI_LLI THYROID GI_LLI GI_LLI G:I_LLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-22

Table 3.2-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 CHILD RECEPTOR 1ST 2ND 3RD 4TH QUARTER QUARTER QUARTER QUARTER ANNUAL DOSE TYPE OCT-DEC JAN-MAR APR-JUN JUL-SEP TOTAL 6.OOE-04 4.02E-04 6.37E-04 7.77E-04 2.42E-03 BODY 6.25E-04 5.23E-04 7.13E-04 9.06E-04 2.77E-03 INTERNAL ORGAN GI_LLI GILLI GI_LLI GI_LLI GI_LLI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR 50 APP. I

% OF APP I. - .

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0.04 0.03 0.04 0.05 3.0 0.08 CRIT. ORGAN(MREM) 5.0 0.01 0.01 0.01 0.02 10.0 0.03 GI_LLI GILLI GI_LLI GI_LLI GILLI RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-23

Table 3.2-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 TEENAGER RECEPTOR IST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER AN]STUAL DOSE JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 3.61E-04 2.44E-04 3.83E-04 4.69E-04 1. 46E-03 BODY 41E-03 INTER] UIAL 4.36E-04 5.66E-04 5.99E-04 8.10E-04 2.

ORGAN _LLI GI_LLI GI_LLI GI_LLI GILLI GI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR 50 APP. I OF APP-% I. - ...........

QTR] LY IST QTR 2ND QTR 3RD QTR 4TH QTR YRLY % OF OCT-DEC OBJ APP. I OB*i JAN-MAR APR-JUN JUL-SEP 0.03 0.03 3.0 0.05 TOTAL BODY (MREM) 1 .5 0.02 0.02 0.01 0.02 10.0 0.02 CRIT. ORGAN F(MREM) 5 .0 0.01 0.01 GI_LLI GI_LLI GI_LLI GILLI GaI_LLI RESULTS B;ASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-24

Table 3.2-1 (continued)

BYRON STATION UNIT TWO ACTUAL 2001 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 03/24/02 ADULT RECEPTOR IST 2ND 3RD 4TH DOSE T.YPE QUARTER QUARTER QUARTER QUARTER ANN1UAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 5.01E-04 3.34E-04 5.31E-04 6.46E-04 2. OIE-03 BODY 28E-03 INTERI IAL 6.07E-04 7,53E-04 8.38E-04 1.09E-03 3.

ORGAN _LLI GI_LLI GI_LLI GI_LLI GI_LLI GI THIS IS A REPORT FOR THE CALENDAR YEAR 2001 COMPLIANCE STATUS - 10 CFR 50 APP. I

% OF APP I. - ...........

IST QTR 2ND QTR 3RD QTR 4TH QTR YRLY OF QTRJ LY .PP. I OB*i JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ 0.04 3.0 0.07 TOTAL BODY (MREM) 1 .5 0.03 0.02 0.04 10.0 0.03 CRIT. ORGAN(MREM) 5 .0 0.01 0.02 0.02 0.02 GI_LLI GI_LLI GI_LLI GI_LLI G IELLI RESULTS B ASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-25

Table 3.3-1 BYRON STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATED 03/24/02

1. 10 CFR 20.1301 (a) (1) Compliance Total Effective Dose Eqivalent, mrem/yr 2.60E-03 10 CFR 20.1301 (a) (1) limit mrem/yr 100.0

% of limit 0.00 Compliance Summary - 10CFR20 ist 2nd 3rd 4th % of Qtr Qtr Qtr Qtr Limit TEDE 5.30E-04 4.86E-04 7.91E-04 7.98E-04 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-26

Table 3.3-1 (continued)

BYRON STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATED 03/24/02

2. 10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit % of (mrem) (mrem) Limit Whole Body Plume 3 .32E-06 (DDE) Skyshi .ne 0.OOE+00 Ground 4.65E-06 Total 7.97E-06 25.0 0.00 Organ Dose Thyroi id 2.30E-03 75.0 0.00 (CDE) Gonads 2.32E-03 25.0 0.01 Breast 2.24E-03 25.0 0.01 Lung 2.23E-03 25.0 0.01 Marrov 2.62E-03 25.0 0.01 Bone 6.34E-03 25.0 0.03 Remaii ider 2.79E-03 25.0 0.01 CEDE 2.60E-03 TEDE 2.60E-03 100.0 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-27

Table 3.3-1 (continued)

BYRON STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATED 03/24/02

1. 10 CFR 20.1301 (a) (1) Compliance Total Effective Dose Eqivalent, mrem/yr 3.44E-03 10 CFR 20.1301 (a) (1) limit mrem/yr 100.0

% of limit 0.00 Compliance Summary - 10CFR20 1st 2nd 3rd 4th % of Qtr Qtr Qtr Qtr Limit TEDE 1.02E-03 7.61E-04 7.28E-04 9.30E-04 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-28

Table 3.3-1 (continued)

BYRON STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATED 03/24/02

2. 10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit % of (mrem) (mrem) Limit Whole Body Plume 2.75E-06 (DDE) SkyshiLne 0.OOE+00 Ground 7.53E-06 Total 1.03E-05 25.0 0.00 Organ Dose Thyroiid 3.13E-03 75.0 0.00 Gonads 3.16E-03 25.0 0.01 (CDE)

Breast 3.07E-03 25.0 0.01 Lung 3.07E-03 25.0 0.01 Marro* 3.46E-03 25.0 0.01 Bone 7.18E-03 25.0 0.03 25.0 0.01 Remai! ider 3.63E-03 CEDE 3.43E-03 TEDE 3.44E-03 100.0 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 1.3 MARCH 1996 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-29

Table 3.4-1 BYRON STATION , UNIT 1 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES CURRENT PERIOD OF RELEASE: October I - December 31 YEAR: 2001 TYPE OF DOSE CURRENT PERIOD CURRENT QUARTER THIRD QUARTER SECOND QUARTER FIRST QUARTER ANNUAL GAMMA AIR (mrad) I 070E-06( E ) 1070E-06( E ) 6.400E-07( S B.470E-07( W ) B 540E-07( SE) 3.029E-06( SE)

BETA AIR (mrad) I .27DE-06(ESE) 1.270E-O6(ESE) 6 730E-07(NNW) 2.080E-06(NNW) 1.800E.06( SE) 4.857E-06(NNW)

WHOLE BODY (mrem) 4 B.OE-07( SE) 4.810E-07( SE) 4.180E-07( S ) 3.180E-06( NE) 4.310E-07( SE) 4.024E-06( SE)

SKIN (mrem) 1.360E-06( SE) 1.360E-06( SE) I 090E-06( S ) 4,410E-06( NE) 1.360E-06( SE) 7-503E-06( SE)

ORGAN (mrem) 1.140E-OS(ESE) 1.140E-OS(ESE) 9.440E-06(NNW) 3.890E-06(NNW) 1.520E-05( SE) 3.199E-O5(ESE)

TA-LV TA-LV TA-LV CH-TB TA-LV TA-LN CRITICAL PERS-ORG COMPLIANCE STATUS 10 CFR 50 APP. I 10 CFR 50 APP.I TYPE OF DOSE QUALRTERLY OBJECTIVE %OF APP. I YEARLY OBJECTIVE %OF APP I GAMMA AIR (mrad) 5.0 .00 10.0 .00 BETA AIR (mrad) 10.0 .00 20 0 .00 WHOLE BODY (mrem) 2.5 .00 5ý0 .00 SKIN (mrem) 7.5 .00 15.0 .00 ORGAN (mrem) 7.5 .00 15.0 .00 CRITICAL PERSON-ORGAN (TA-LV) (TA-LN)

CRITICAL ORGANS: BN-BONE. LV-LIVER. TB-TOTAL BODY. TH-THYROID. KD-KIDNEY. LN-LUNG. GI-GI-LLI CRITICAL PERSON: AD-ADULT. TA-TEENAGER. CH-CHILD, IN-INFANT Date of calculation: 4/18/2002 1-30

Table 3.4-1 (continued)

BYRON STATION - UNIT 2 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES CURRENT PERIOD OF RELEASE: October I - December 31 YEAR: 2001 THIRD QUARTER SECOND QUARTER FIRST QUARTER ANNUAL TYPE OF DOSE CURRENT PERIOD CURRENT QUARTER 6-100E-07( W ) 1,820E-06( SE) 2.957E.06( SE)

GAHMA AIR (mrad) 5.560E-07( E ) 5.560E-07( E ) 1.050E-07(NNW) 1.960E-06(NNW) 2.190E-06( SE) 4 632E-06( SE)

BETA AIR (mrad) 1.050E-06(ESE) 1.OSOE-06(ESE) 3.710E-07(NNW) 2.230E-06( NE) 9.770E-07( SE) 3 652E-06( SE)

WHOLE BODY (mrem) 6.020E-07( SE) 6.020E-07( SE) B.540E-0B(SSE) 3.160E-06( NE) 2.660E-06( SE) 7 009E-06( SE)

SKIN (mrem) 1.220E-06( SE) 1.220E-06( SE) 2.110E-07(SSE) 7.910E-06(NNW) 1.010E-05(NNW) 6.410E-05( SE) 7 297E-05( SE)

ORGAN (mrem) 9.780E-06(ESE) 9.780E-06(ESE)

TA-LN TA-LN TA-LN TA-TH TA-TH CRITICAL PERS-ORG TA-LN COMPLIANCE STATUS 10 CFR 50 APP. 1 10 CFR 50 APP.I TYPE OF DOSE QUA RTERLY OBJECTIVE %OF APP I YEARLY OBJECTIVE I OF APP I GAMMA AIR (mrad) 5.0 .00 10.0 .00 BETA AIR (mrad) 10.0 .00 20.0 .00 WHOLE BODY (mrem) 2.5 .00 5.0 .00 SKIN (mrem) 7.5 .00 15.0 .00 ORGAN (mrem) 7.5 .00 15.0 .00 CRITICAL PERSON-ORGAN (TA-LN) (TA- TH)

CRITICAL ORGANS: BN-BONE, LV=LIVER. TB-TOTAL BODY, TH-THYROIO. KDOKIDNEY, LN-LUNG. GI-GI-LLI CRITICAL PERSON: AO-AOULT. TA-TEENAGER. CH-CHILD. IN-INFANT Maximum Offsite (Values (pCdm3)

Iodine 3.66E-07 Particulate Matter 2.97E-01 Date of calculation: 4/1812002 Data Recovery 99.8%

(priority parameters) 1-31

Figure 5.0-1 BYRON STATION 14 o M Location It INNER AND OUTER RING TLD LOCATIONS 1-32

Figure 5.0-2 0 1/2 1 Mile Byron Station FqOnsite Air Sampler Locations BY-21 Byron Nearsite North BY-22 Byron Nearsite East Southeast BY-23 Byron Nearsite South BY-24 Byron Nearsite Southwest 1-33

Figure 5.0-3 4.10 7

I m=21 Byron Stationon OMfite Air Sampling Locations 1-34

Figure 5.0-4 0 I a 31 4 MILES o.$ SII

- 10m4 Fish U Milk Byron Station Sediment Ingestion and Waterborne Exposure Pathway Sample Locations 0 Water Byron Station BY-12 Oregon Pool of Rock River, Downstream BY-14 CornEd Offsite Well BY-14-1 3200 North German Church Road BY-18 McCoy Farmstead BY-20 K. Reeverts Dairy Farm BY-26-1 Dennis Herbert BY-29 Byron, Upstream BY-30 Don Roos Dairy BY-31 Byron, Discharge BY-32 Ron Wolford Well BY-34 Rock River, Downstream 1-35

TABLE 5.0-1 I

Byron Radiological Environmental -*

ti)

Monitoring

>~

Locations BY-01 Byron V BY-04 Paynes Point V BY-06 Oregon VO BY-08 Leaf River BY-12 Oregon Pool of Rock River, Downstream BY-14 ComEd Offsite Well BY-14-1 3200 German Church Roada BY-18 McCoy Farmstead BY-Quad 1 D. White BY-Quad 2 3485 German Church Road BY-Quad 3 German Church 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 V VO BY-23 Byron Near Site S V VO BY-24 Byron Near Site SW V' 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 a Replaced CornEd Offsite Well, BY-14, in August of 2001.

1-36

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 J BY-110-1,2 0.6 SSW K BY-111-3 0.7 SW L BY-111-4 0.8 SW L BY- 112-3,4 0.8 WSW M BY-1 13-1,2 0.7 W N BY- 114-1,2 0.8 WNW P BY-115-1,2 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.

1-37

TABLE 5.0-2 (continued)

BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

2. TLDs

b. Special TLD Locations (continued)

Distance a

.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 W 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 a Control (background) locations are denoted by a "C" after site code. All other locations are indicators.

1-38

TABLE 5.0-2 (continued)

BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

4. VEGETABLES Distance Site Code Location (miles) Direction Sector BY-Quad 1 D. White 3.0 N A BY-Quad 2 3485 German Church Road 0.6 SSE H BY-Quad 3 1417 Brick Road 4.0 S J BY-Quad 4 D.L. Hardisty 2.5 NNW R BY-Control (C) Walt Mueller 15.6 N A

5. GROUND/WELL WATER Distance a

Site Code Location (miles) Direction Sector BY-14 CornEd Offsite Well 0.5 ESE F BY-14-1 3200 North German Church Roadb 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 WNW 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.

b Replaced CornEd Offsite Well, BY-14, in August of 2001.

1-39

TABLE 5.0-2 (continued)

BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Codea Site Frequency Analysis of Analysis I. Airborne Onsite, Nearfield and Control Filter exchange Gross Beta Weekly Particulates weekly Gamma Isot. Quarterly Composite BY-08 (C) Leaf River (or if weekly gross beta ina BY-21 Nearsite N sample exceeds 5X the BY-22 Nearsite ESE average concentration of BY-23 Nearsite S preceding calendar quarter).

BY-24 Nearsite SW Far Field Gamma Isot. If gross beta in a sample exceeds 10 times the yearly mean of control BY-01 Byron samples and radioactivity is BY-04 Paynes Point confirmed as having its origin in BY-06 Oregon airborne effluents from station.

2. Airborne Same as 1. Canister exchange 1-131 Biweekly Iodine biweekly

3. Air Sampling Same as 1. Test and Weekly Train Maintenance

4. TLDs a. Same as 1. Quarterly Gamma Quarterly (two TLDs per location)

b. BY-101-1,2 Inner Ring 102-1,2 103-1,2 104-1,2 105-1,2 106-1,2 107-1,2 108-1,2 109-1,2 110-1,2 111-3,4 112-3,4 113-1,2 114-1,2 115-1,2 116-1,2

c. BY-201-3,4 Outer Ring 202-1,2 203-1,2 204-1,2 205-1,2 206-1,2 207-1,2 208-1,2 209-1,4 210-3,4 211-1,4 212-1,4 aControl (background) locations are denoted by a "C" in this column. All other location are indicators.

1-40

TABLE 5.0-2 (continued)

BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Codea Site Frequency Analysis of Analysis

4. TLDs (continued)

Outer Ring Quarterly Gamma Quarterly BY-213-1,4 214-1,4 215-1,4 216-1,2

5. Milk BY-20 K. Reevert's Dairy Biweekly: 1-131 Biweekly:

BY-26 (C) G. Hazzard's Dairy May-October Gamma Isot. May-October BY-30 D. Roos Dairy Monthly: Monthly:

November-April November-April

6. Vegetables Quad I D. White Annually - two varieties Gamma Isot. Annually Quad 2 3485 German from each location as 1-131 Annually, on broad leaf Church Road available at harvest. vegetation.

Quad 3 E. Thurm Quad 4 D. L. Hardisty Control W. Mueller

7. Ground/Well BY-14 ComEd Offsite Quarterly Gamma Isot. Quarterly Water BY-14-lb 3200 North German Church Road Tritium BY-18 McCoy Farm BY-32 Wolford Well

8. Surface Water BY-12 Oregon Pool Weekly Gross Beta Monthly composite.

of Rock River Gamma Isot. Monthly composite.

Downstream Tritium Quarterly composite.

BY-29 (C) Byron,Upstream

9. Fish (at least BY-29 (C) Byron, Upstream Two times/year Gamma Isot. Two times/year on two species) BY-31 Byron, Discharge edible portions only.

10. Sediments BY-12 Oregon Pool of Semiannually Gamma Isot. Semiannually Rock River Downstream BY-34 Rock River Downstream

11. Land Use Census Milch Animals

a. Site Boundary to 2 miles a. Enumeration Annually during grazing by a door to door season.

or equivalent counting technique.

b. 2 miles to 6.2 miles b. Using referenced information from county agricultural agents or other reliable sources.

c. At dairies listed in Item 5. c. Inquire as to Annually during grazing feeding practices: season.

1. Pasture only.

a Control (background) locations are denoted by a "C" in this column. All other location are indicators.

b Replaced CoinEd Offsite Well, BY-I 4, in August of 2001.

1-41

TABLE 5.0-2 (continued)

BYRON STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Codea Site Frequency Analysis of Analysis

13. Land Use Census (continued) 2. Feed and chop only.

3. Pasture and feed:

if both, ask farmer to estimate fraction of food from pasture:

<25%, 25-50%,

50-75%, or >75%.

Nearest In all sectors up to 6.2 miles. Annually during grazing Residence season.

a Control (background) locations are denoted by a "C" in this column. All other location are indicators.

1-42

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 1st Quarter 2001 (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 64 0.01 0.025 (51/52) BY-08, Leaf River, 0.028 (13/13) 0.028 (13/13) 0 Particulates Beta (0.013-0.042) 6.8 mi. WNW, Sector (0.018-0.047) (0.018-0.047)

(pCi/m3 Gamma Spec. 5P Cs-134 0.01 <LLD - <LLD 0 Cs-137 0.01 <LLD - <LLD 0 Other Gammas 0.01-0.04 <LLD - - <LLD 0 Airborne Iodine 1-131 30 0.07 <LLD - - <LLD 0 (pCi/m3)

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

Gamma Spec. 9 Cs-134 15 <LLD - - <LLD 0 Cs-137 18 <LLD - - <LLD 0 Ba-La-140 15 <LLD - - <LLD 0 Other Gammas 10-15 <LLD - - <LLD 0 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 3,618 (1/1) BY-12, Oregon Pool 3,618(1/1) <LLD 0 of Rock River, 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 Background Gamma Dose 80 9.7 19(78/78) BY_105.lb 24(1/1) 16(2/2) 0 (TLDs) (16-24) 1.3 mi. E Sector E (16-16)

(mR/Qtr.)

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

b BY-105-1, BY-105-2, BY-107-1 and BY-212-1 had identical means of 24 mR. Only BY-105-1 is detailed in this summary.

1-43

Table 5.0-4 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 2nd Quarter 2001 (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 0.020 (44/52) BY-2Ib, Nearsite N 0.021 (11/13) 0.020 (12/13) 0 Particulates Beta (0.013-0.029) 0.3 mi. N, Sector A (0.018-0.029) (0.010-0.029) 3 (pCi/m ) Gamma Spec. 5 Cs-134 0.01 <LLD <LLD 0 Cs-137 0.01 <LLD <LLD 0 Other Gammas 0.01-0.04 <LLD -<LLD 0 Airborne Iodine 1-131 35 0.07 <LLD - - <LLD 0 (pCi/m3)

Milk 1-131 18 0 .5/5. 0 c <LLD - - <LLD 0 (pCi/L)

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

Cs-134 0.10 <LLD - - <LLD 0 Cs-137 0.10 <LLD - - <LLD 0 Other ODCM Required 0.13-0.26 <LLD - - <LLD 0 Gammas Other Gammas 0.20-0.30 <LLD - - <LLD 0 Bottom Gamma Spec. 2 Sediment (pCi/g wet) Cs-134 0.15 <LLD - - None 0 Cs-137 0.18 <LLD - - None 0 Other Gammas 0.10-0.60 <LLD - - None 0 a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

b Locations BY-21 and BY-22 had identical means of 0.021 pCi/m3. Only BY-21 is detailed in this summary.

c 0.5 pCi/L. (May-October); 5.0 pCi/L. (November-April).

1-44

Table 5.0-4 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility B3ron Nuclear Power Station Docket No. 50-454, 50-455 Location of Facility Ogle, Illinois Reporting Period 2nd Quarter 2001 (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 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 1,708 (1I/) BY-12, Oregon Pool 1,708 (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 20.8 (78/78) BY-107-1 26(1/1) 20.5 (2/2) 0 Background (16-26) 1.4 mi. SE Sector G (20-21)

(TLDs)

(mR/Qtr.)

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

1-45

Table 5.0-5 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 3rd Quarter 2001 (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 0.024 (52/52) BY-08, Leaf River 0.026 (13/13) 0.026 (13/13) 0 Particulates Beta (0.014-0.032) 6.8 mi. WNW, Sector (0.017-0.038) (0.017-0.038)

(pCi/m3) Gamma Spec. 5P Cs-134 0.01 <LLD - <LLD 0 Cs-137 0.01 <LLD - <LLD 0 Other Gammas 0.01-0.04 <LLD - <LLD 0 Airborne Iodine 1-131 30 0.07 <LLD - <LLD 0 3

(pCi/mi )

Milk 1-131 18 0.5 <LLD - <LLD 0 (pCi/L)

Gamma Spec. 18 Cs-134 15 <LLD - <LLD 0 Cs-137 18 <LLD - - <LLD 0 Ba/La-140 15 <LLD - - <LLD 0 Other Gammas 10-15 <LLD - - <LLD 0 Vegetation 1-131 11 0.06 <LLD - - <LLD 0 (pCi/g wet)

Gamma Spec. 11 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 4.1 (1/3) BY-29, Byron, 4.3 (1/3) 4.3 (1/3) 0 (pCi/L) Upstream of Intake Gamma Spec. 6 3.0 mi. N, Sector A Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCM- 15-30 <LLD <LLD 0 Required Gammas Tritium 2 200 1,828(1/1) BY-12 Oregon Pool of 1,828 (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.

1-46

Table 5.0-5 (continued)

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 3rd Quarter 2001 (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 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- 15-30 <LLD None 0 Required Gammas Gamma Gamma Dose 80 9.7 17.7 (78/78) BY_22_2b, 21(1/1) 14(2/2) 0 Background (12-21) 0.4 mi ESE, Sector F (14-14)

(TLDs)

(mRIQtr.)

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

b Locations BY-22-2, 102-1, 107-1, 108-1, 110-2, 204-2, 208-l, 209-1, 215-4, 216-1 had identical means of 21 mR. Only BY-22-2 is detailed in this summary.

1-47

Table 5.0-6 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 4th Quarter 2001 (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-08, Leaf River 0.030 (13/13) 0.030 (13/13) 0 Particulates Beta (0.017-0.054) 6.8 mi WNW, Sector (0.021-0.051) (0.021-0.051)

(pCi/m3 Gamma Spec. 5P Cs-134 0.01 <LLD - <LLD 0 Cs-137 0.01 <LLD - - <LLD 0 Other Gammas 0.01-0.04 <LLD - - <LLD 0 Airborne Iodine 1-131 35 0.07 <LLD - - <LLD 0 (pCi/m3 )

Milk 1-131 15 0 .5/5. 0 b <LLD - - <LLD 0 (pCi/L)

Gamma Spec. 15 Cs-134 15 <LLD - - <LLD 0 Cs-137 18 <LLD - - <LLD 0 Ba-La-140 15 <LLD - - <LLD 0 Other Gammas 10-15 <LLD - - <LLD 0 Fish Gamma Spec. 9 (pCi/g wet)

Cs-134 0.10 <LLD - - <LLD 0 Cs-137 0.10 <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.

b 0.5 pCi/L. (May-October); 5.0 pCi/L. (November-April).

1-48

Table 5.0-6 (continued)

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 4th Quarter 2001 (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 Surface Water Gross Beta 6 4 <LLD BY-29, Byron, 5.3 (2/3) 5.3 (2/3) 0 (pCi/L) Upstream of Intake (4.8-5.8) (4.8-5.8)

Gamma Spec. 6 0.9 mi N, Sector A Cs-134 15 <LLD 0

<LLD Cs-137 18 <LLD 0

<LLD Other ODCM Required 15-30 <LLD 0 Gammas <LLD Tritium 2 200 2,337 (1/1) BY-12, Oregon Pool 2,337 (1/1) 0 of Rock River, 4.5 mi <LLD SSW, Sector K Well Water Gamma Spec. 3 (pCi/L)

Cs-134 15 <LLD - None 0 Cs-137 18 <LLD - None 0 Other ODCM Required 15-30 <LLD - None 0 Gammas Tritium 3 200 <LLD - None 0 Gamma Gamma Dose 80 9.7 21.7 (78/78) BY-102-1, 0.9 mi. 28(1/1) 18(2/2) 0 Background (15-28) NNE, Sector B (17-19)

(TLDs)

(mR/Qtr.)

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

1-49

BYRON APPENDIX II METEOROLOGICAL DATA II-1

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS - EXTREMELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 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 0 0 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 - 2

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS MODERATELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 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 0 0 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 - 3

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS - SLIGHTLY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL 0 0 N 0 0 0 NNE 0 0 0 NE 0 0 0 ENE 0 0 0 E 0 0 0 ESE 0 0 0 SE 0 0 0 SSE 0 0 0 S 0 0 0 SSW 0 0 0 SW 0 0 0 WSW 0 0 0 W 0 0 0 WNW 0 0 0 NW 0 0 0 NNW 0 0 0 VARIABLE 0 TOTAL 0 0 0 0 0 1 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:

II - 4

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS - NEUTRAL (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 1 6 20 33 0 60 NNE 1 8 9 4 11 35 NE 1 10 6 0 4 24 ENE 3 12 0 0 0 15 E 4 7 5 5 1 22 ESE 2 13 10 8 4 37 SE 0 7 10 10 5 32 SSE 1 3 17 16 1 38 S 0 3 7 22 5 37 SSW 1 11 15 13 7 47 SW 0 6 18 19 4 47 WSW 1 2 16 30 6 58 W 0 7 37 71 30 155 WNW 1 12 33 65 20 132 NW 0 14 43 48 54 162 NNW 1 6 31 26 4 68 VARIABLE 0 0 0 0 0 0 TOTAL 17 127 277 370 156 22 969 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 28 Hours of missing stability measurements in all stability classes: 1 II - 5

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS - SLIGHTLY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 1 17 18 2 0 38 NNE 1 2 5 2 1 0 11 NE 0 2 0 5 0 17 24 ENE 2 6 4 7 0 0 19 E 0 S 19 10 6 0 40 ESE 0 2 4 16 14 7 43 SE 2 2 4 9 9 13 39 SSE 1 2 3 22 11 6 45 S 2 1 14 14 16 4 51 SSW 1 5 12 28 11 10 67 SW 1 13 30 36 33 4 117 WSW 0 9 21 35 8 1 74 W 1 7 42 47 10 0 107 WNW 3 6 29 28 9 0 75 NW 2 11 39 65 8 0 125 NNW 1 4 24 29 5 0 63 VARIABLE 0 0 0 0 0 0 0 TOTAL 17 78 267 371 143 62 938 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:

II -6

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS - MODERATELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 2 0 13 NNE 0 0 0 7 NE 0 0 0 5 ENE 2 0 0 5 E 1 0 0 6 ESE 0 4 0 9 SE 1 0 0 10 SSE 1 3 0 6 S 0 9 1 17 SSW 0 1 0 6 SW 0 3 0 10 WSW 0 0 0 6 W 0 0 0 7 WNW 0 0 0 7 NW 0 0 0 9 NNW 0 0 0 7 VARIABLE 0 0 0 0 TOTAL 5 21 47 34 22 130 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 - 7

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS - EXTREMELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 8 NNE 1 8 NE 4 13 ENE 5 8 E 0 2 ESE 0 1 SE 1 5 SSE 0 5 S 0 1 SSW 0 2 SW 0 1 WSW 0 0 W 0 1 WNW 0 5 NW 0 16 NNW 1 8 VARIABLE 0 0 TOTAL 12 23 24 25 0 0 84 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 - 8

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - EXTREMELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 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 0 9 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 - 9

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - MODERATELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 NNE 0 NE 0 ENE 1 E 0 ESE 0 SE 0 SSE 0 S 2 SSW 0 SW 0 WSW 0 W 2 WNW 1 NW 0 NNW 0 VARIABLE 0 TOTAL 0 0 7 8 6 0 21 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 - 10

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - SLIGHTLY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 10 ii 1

NNE 0 0 0 1 4 NE 0 0 8 ENE 0 1 4 E

0 0 2 ESE 0 0 3 SE 0 0 5 SSE 1 7 S 0 4 6 SSW 0 0 4 21 SW 0 6 WSW 0 0 2 6 W

4 12 WNW 0 0 0 3 NW 1 3 NNW 0 0 0 VARIABLE 0 TOTAL 0 4 28 44 21 5 102 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 measurements in all stability classes: 1 Hours of missing stability II- 11

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - NEUTRAL (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 18 11 14 6 0 49 1 4 16 14 3 0 38 NNE 7 19 13 6 0 48 NE 3 2 18 28 23 11 2 84 ENE 4 12 48 27 4 0 95 E

5 5 10 5 1 29 ESE 3 2 7 10 10 7 2 38 SE 3 12 14 21 7 57 SSE 0 2 14 33 33 23 3 108 S

8 24 35 20 16 103 SSW 0 1 8 23 26 24 17 99 SW 1 4 9 19 6 19 58 WSW 0 8 16 12 4 16 56 W

11 15 15 11 10 65 WNW 3 14 21 20 9 0 66 NW 2 25 16 6 3 0 50 NNW 0 0 0 0 0 0 0 VARIABLE 0 TOTAL 24 166 306 291 163 93 1043 Hours of calm in this stability class: 0 stability class: 10 Hours of missing wind measurements in this measurements in all stability classes: 1 Hours of missing stability II - 12

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - SLIGHTLY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL 5 5 0 0 15 N

3 3 6 0 16 NNE 8 8 3 0 24 NE 4 13 7 0 32 ENE 15 25 8 0 55 E

2 9 23 5 42 ESE 5 11 11 3 31 SE 5 6 21 10 48 SSE 9 19 40 18 87 S

16 20 30 11 80 SSW 13 27 13 6 61 SW 9 20 9 3 43 WSW 8 18 6 1 34 W

10 15 10 0 37 WNW 21 18 1 0 42 NW 12 7 3 0 27 NNW 0 0 0 0 0 VARIABLE 224 191 57 674 TOTAL 7 50 145 Hours of calm in this stability class: 0 stability class: 7 Hours of missing wind measurements in this measurements in all stability classes: 1 Hours of missing stability II - 13

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - MODERATELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 1 1 3 0 5 3 5 4 0 12 NNE 1 1 4 0 6 NE 0 0 0 0 0 ENE 1 7 8 5 21 E

1 1 7 4 14 ESE 0 1 3 5 10 SE 1 3 6 2 12 SSE 2 17 16 49 S

2 12 15 2 32 SSW 3 9 22 4 38 SW 2 7 12 0 21 WSW 0 1 6 0 7 W

3 6 0 0 9 WNW 4 5 2 0 11 NW 3 10 0 0 14 NNW VARIABLE 0 0 0 0 0 5 27 80 109 38 2 261 TOTAL Hours of calm in this stability class: 0 0

Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

II - 14

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - EXTREMELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 0 0 0 NNE 0 1 NE 0 0 ENE 0 0 E

0 2 ESE 0 1 SE 0 5 SSE 0 6 S

0 13 SSW 0 2 SW 0 4 WSW 0 11 W

0 4 WNW 0 4 NW 3

NNW 0 0 0 VARIABLE TOTAL 0 9 23 16 8 0 56 Hours of calm in this stability class: 0 class: 0 Hours of missing wind measurements in this stability Hours of missing stability measurements in all stability classes: 1 II- 15

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS - EXTREMELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 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 1 W 0 WNW 0 NW 0 NNW 0 VARIABLE 0 TOTAL 1 0 4 13 1 0 19 Hours of calm in this stability class: 0 0

Hours of missing wind measurements in this stability class:

measurements in all stability classes: 5 Hours of missing stability 11-16

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS - MODERATELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 10 I0 1

NNE 0 NE 0 0 ENE 0 2 E 0 1 0 2 ESE SE 0 3 0 3 SSE 0 6 S

0 7 SSW 0 6 SW 0 10 WSW 0 2 W

WNW 0 0 0 0 NW 0 4 NNW 0 0 VARIABLE TOTAL 0 2 29 21 5 0 57 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 11-17

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS - SLIGHTLY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 8 3 16 NNE 0 5 0 7 NE 0 3 0 4 0 1 0 1 ENE E 0 0 0 3 0 1 0 4 ESE SE 0 3 0 5 SSE 0 2 0 2 S 0 4 0 14 SSW 0 9 1 13 SW 0 7 1 11 WSW 0 11 0 14 0 6 0 10 W

WNW 0 2 0 3 0 1 0 5 NW 0 5 0 6 NNW 0 0 0 0 VARIABLE TOTAL 0 19 68 26 5 0 118 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 11-18

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS - NEUTRAL (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 3 4 20 19 15 62 7 19 18 2 50 NNE 4 6 13 23 0 43 NE 1 2 4 5 11 2 25 ENE 10 32 12 0 56 E 1 3 19 15 4 0 41 ESE 20 13 5 2 44 SE 4 8 19 18 8 55 SSE 2 2 7 21 18 5 53 S

12 35 17 7 73 SSW 0 17 35 18 3 75 SW 2 25 20 3 69 WSW 2 19 21 8 3 46 W 3 11 1 11 11 14 2 39 WNW 10 7 32 2 54 NW 3 8 25 9 2 48 NNW 4 0 0 0 0 0 VARIABLE 0 TOTAL 37 173 316 246 56 5 833 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 11-19

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS - SLIGHTLY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 8 15 25 0 48 1 4 10 7 0 22 NNE 2 7 7 7 2 25 NE 2 8 4 17 7 38 ENE 2 14 32 9 3 60 E

1 4 12 11 1 29 ESE 0 1 8 11 10 30 SE 2 3 3 18 13 40 SSE 0 5 13 24 13 58 S

1 6 13 18 2 40 SSW 1 4 19 20 0 44 SW 13 26 13 0 52 WSW 0 30 6 0 48 W 2 10 6 22 15 0 47 WNW 4 2 0 14 5 1 22 NW 5 21 22 1 49 NNW 0 0 0 0 0 0 VARIABLE 0 TOTAL 20 98 249 228 53 4 652 Hours of calm in this stability class: 0 0

Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes: 5 II - 20

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS - MODERATELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 1 9 10 25 NNE 1 4 9 15 NE 1 1 6 8 ENE 2 6 2 16 0 12 7 26 E

ESE 0 5 16 29 0 6 6 18 SE 2 4 9 25 SSE S 2 7 28 48 1 9 27 45 SSW SW 1 6 20 33 WSW 1 6 7 16 W 2 7 5 16 1 8 8 20 WNW NW 1 5 5 15 0 12 7 23 NNW 0 0 0 0 VARIABLE TOTAL 16 46 107 172 36 1 378 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sta bility class: 0 Hours of missing stability measurements in all stability classes: 5 1I - 21

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS EXTREMELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13- 18 19-24 > 24 TOTAL N 0 0 6 NNE 1 0 3 NE 1 0 6 ENE 2 1 3 E 0 0 4 ESE 0 1 8 SE 0 10 18 SSE 0 3 16 S 1 7 20 SSW 1 3 10 SW 0 1 5 WSW 1 3 11 W 1 3 9 WNW 3 4 12 NW 2 0 9 NNW 0 2 6 VARIABLE 0 0 0 TOTAL 13 24 49 38 22 0 146 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 5 II - 22

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS - EXTREMELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 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 0 0 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 - 23

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS - MODERATELY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 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 0 0 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 - 24

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS - SLIGHTLY UNSTABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 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 1 NNW 0 VARIABLE 0 TOTAL 0 0 1 5 6 1 13 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 11-25

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS - NEUTRAL (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 1 8 17 4 0 0 30 NNE 2 6 11 5 0 0 24 NE 1 1 4 4 6 0 16 ENE 1 5 3 9 1 0 19 E 2 11 7 9 1 0 30 ESE 1 5 4 8 5 1 24 SE 0 2 4 13 14 7 40 SSE 2 4 15 24 14 6 65 S 5 3 18 18 30 21 95 SSW 1 9 26 27 32 25 120 SW 0 7 22 43 19 0 91 WSW 3 10 29 43 21 6 112 W 1 14 40 87 31 34 207 WNW 1 10 16 46 38 19 130 NW 0 12 13 45 19 2 91 NNW 2 5 22 10 8 3 50 VARIABLE 0 0 0 0 0 0 0 TOTAL 23 112 251 395 239 124 1144 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 - 26

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS - SLIGHTLY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 5 8 1 0 16 6 4 1 0 13 NNE 4 4 2 0 15 NE 2 4 3 0 14 ENE 9 16 0 0 30 E

0 1 1 3 6 ESE 8 4 9 16 38 SE 1 12 15 10 42 SSE 9 19 44 21 100 S

11 54 59 4 134 SSW 16 35 38 3 96 SW 17 27 5 0 55 WSW 18 36 5 1 66 W

17 17 8 0 46 WNW 20 31 1 0 56 NW 11 15 0 0 28 NNW 0 0 0 0 0 VARIABLE 7 57 154 287 192 58 755 TOTAL Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 measurements in all stability classes: 0 Hours of missing stability II - 27

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS - MODERATELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 0 0 0 8 NNE 0 2 0 3 NE 0 2 0 4 0 0 0 1 ENE 0 3 0 5 E

0 3 5 9 ESE SE 0 2 6 9 0 2 1 8 SSE S 0 7 19 32 SSW 0 23 19 43 SW 0 14 2 21 0 9 0 14 WSW W 0 6 0 14 0 11 1 16 WNW 3 0 10 NW 0 0 2 0 7 NNW 0 0 0 0 VARIABLE TOTAL 0 7 52 89 53 3 204 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 11-28

BYRON NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS - EXTREMELY STABLE (DIFF TEMP 250-30 FT)

WINDS MEASURED AT 250 FEET WIND SPEED (in mph)

WIND DIRECTION 0.9-3 4-7 8-12 13-18 19-24 > 24 TOTAL N 2 0 3 0 1 NNE 0 0 1 NE 0 0 1 ENE 1 E 0 0 0 ESE 0 2 4 SE 1 3 6 SSE 0 2 6 S 1 3 10 SSW 1 14 22 SW 0 0 2 WSW 0 2 4 W 1 2 8 WNW 0 7 9 NW 0 4 11 NNW 0 0 4 VARIABLE 0 0 0 TOTAL 7 14 27 39 5 0 92 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 - 29

APPENDIX HI 2001 REMP SAMPLE RESULTS III-1

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

1.0 INTRODUCTION

......................................................... 111-4 2.0 LISTING OF MISSED SAMPLES ............................................ 111-5 3.0 LISTING OF SAMPLE ANOMALIES ........................................ 111-6 4.0 TLD DA TA ............................................................... 111-43 5.0 GRAPHS OF DATA TRENDS .............................................. 111-47 111-2

BYRON LIST OF TABLES No. Title PaFe 1 Airborne Particulates and Iodine-131 ........................................ 111-7 2 Airborne Particulates, Quarterly Composites ................................. 111-12 3 Milk ..................................................................... 111-15 4 Fish, Edible Portions ...................................................... 111-24 5 Bottom Sedim ents ......................................................... 111-28 6 Vegetables ............................................................... 111-29 7 Surface W ater ............................................................ 111-32 8 Well Water .............................................................. 111-37 12 Milch Animals, Nearest Residence, and Nearest Livestock Census .............. 111-39 111-3

BYRON

1.0 INTRODUCTION

The following constitutes the current 2001 Monthly 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. Missing entries indicate analyses that are not completed and the results will appear in subsequent reports.

Missing tables indicate sample media scheduled for collection at a future date. Tables will appear in subsequent reports.

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/Nb-95, 1-131, Ba/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 from 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 Sample Type Location Collection Comments Code Date None for 2001.

111-4

2.0 LISTING OF MISSED SAMPLES Location Expected Sample Type Code Collection Reason Date SW BY-29 01-02-01 No sample; water frozen.

SW BY-29 01-09-01 No sample; water frozen.

SW BY-29 01-16-01 No sample; water frozen.

A/I BY-21 01-23-01 No sample; pump #109 found not running; placed pump

128; air particulate and air iodine for week invalid.

SW BY-29 01-23-01 No sample; water frozen.

SW BY-29 01-30-01 No sample; water frozen.

SW BY-29 02-06-01 No sample; water frozen.

SW BY-29 02-13-01 No sample; water frozen.

111-5

3.0 LISTING OF SAMPLE ANOMALIES Sample Type Location Collection Reason Code Date A BY-08 01-16-01 Pump #128 removed due to low vacuum reading (17 inches Hg); placed pump #106.

All BY-21 02-20-01 Collector removed pump #128 because of low vacuum; placed pump #102.

A/I BY-Gasket Exchange 04-03-01 Collector gaskets lost in mail; could not exchange on 04-03-01. New gaskets were sent and collector exchanged on 04-10-01.

A BY-22 06-06-01 Pump motor running; vacuum and flowrate readings zero.

Collector replaced pump.

WW BY-14 07-10-01 Collector unable to obtain sample; pump would not produce water. Will try to collect next collection period.

WW BY-14 07-17-01 Collector could not obtain well water; pump not working.

WW BY-14 07-24-01 Collector could not obtain well water; pump not working.

WW BY-14 07-31-01 Collector could not obtain well water; pump not working.

WW BY-14 08-07-01 Collector could not obtain well water; pump not working.

WW BY-14 08-14-01 Collector could not obtain well water; pump not working.

NOTE: New location (BY-14-1) found 08-21-01.

A/I BY-21 10-30-01 High meter reading of 191.0 believed due to timer "reset" during pump rewiring; used 159.8 hrs for calculations.

A/I BY-22 10-30-01 Low meter reading of 110.9 believed due to timer "reset" during pump rewiring; used 159.8 hrs for calculations.

111-6

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLD: Gross Beta = 0.01, 1-131 = 0.07 pCi/m 3 3

Units: 10-2 pCi/m BY-08 (C) Leaf River Date Volume Gross Date Volume Gross Collected (m3) Beta 1-131 a Collected (m3 ) Beta 1-131 a 01-02-01 244 2.8 +/- 0.4; 0.7 07-03-01 283 2.5 +/- 0.4; 0.6 01-09-01 280 3.5 +/- 0.4; 0.8 -0.8 0.5;0.6 07-10-01 287 2.4 +/- 0.3; 0.5 0.1 +/- 0.4; 0.4 01-16-01 281 2.6 +/- 0.4; 0.7 07-17-01 284 2.3 +/-_0.3;0.5 01-23-01 291 4.7 +/-_0.5;0.7 0.0_0.5;0.5 07-24-01 285 2.8 +/- 0.4; 0.6 -0.1 +/- 0.4;0.4 01-30-01 292 1.8 +/- 0.4; 0.7 07-31-01 284 2.7 +/-_0.3;0.6 02-06-01 284 2.3 +/- 0.4; 0.6 -0.1 +/-+0.5;0.5 08-07-01 290 2.5 +/- 0.4; 0.6 -0.1 +/- 0.4;0.4 02-13-01 282 2.0 +/-_0.3;0.5 08-14-01 283 3.2 +/- 0.4; 0.7 02-20-01 282 4.3 +/-_0.5;0.9 0.7_0.4;0.4 08-21-01 285 2.0 +/-_0.3;0.5 0.0_+/-0.4;0.4 02-27-01 285 2.9 +/- 0.4; 0.7 08-28-01 283 3.8 +/- 0.4; 0.8 03-06-01 284 2.5 +/- 0.4; 0.6 0.5 0.5;0.5 09-04-01 286 2.8 +/-_0.4;0.6 0.3_+/-0.4;0.4 03-13-01 286 2.2 +/- 0.3; 0.5 09-11-01 285 1.7 +/-_0.3;0.5 03-20-01 284 2.1 +/-_0.3;0.5 -0.3 _0.5;0.5 09-18-01 285 2.2 +/-_0.4; 0.5 0.4_+/-0.4;0.4 03-27-01 284 2.2 +/- 0.3; 0.5 09-25-01 291 2.4 +/- 0.3; 0.5 1st Qtr. Mean+/-s.d. 2.8 +/-0.9 0.0+/- 0.5 3rd Qtr. Mean+/-s.d. 2.6 +/-0.5 0.1+/- 0.2 04-03-01 284 2.0_+/-0.4; 0.5 -0.5_+/-0.5;0.5 10-02-01 279 2.1 +/-_0.4;0.5 0.1_+/-0.5;0.5 04-10-01 286 1.6 +/- 0.3; 0.4 10-09-01 284 3.1 +/-_0.4;0.7 04-17-01 283 1.8 +/-0.3;0.4 -0.1 +/- 0.5;0.5 10-16-01 286 2.2 +/- 0.3; 0.5 0.3 +/- 0.4;0.4 04-24-01 285 2.2 +/- 0.4; 0.5 10-23-01 295 2.9 +/- 0.4; 0.7 05-01-01 286 2.9 +/- 0.3; 0.6 -0.0 +/- 0.4;0.4 10-30-01 278 2.3 +/-_0.4; 0.6 0.9_+/-0.4;0.5 05-08-01 283 2.3 +/- 0.4; 0.6 11-06-01 283 2.6 +/- 0.4; 0.6 05-15-01 286 2.4 +/-_0.3;0.5 0.4_+/-0.5;0.5 11-13-01 284 3.3 +/-_0.4;0.7 -0.2_+/-0.5;0.5 05-22-01 286 2.0 +/- 0.3; 0.5 11-20-01 285 5.1 +/- 0.5; 1.0 05-29-01 283 1.0 +/- 0.3; 0.3 -0.4 +/- 0.5;0.5 11-27-01 290 2.7 +/-_0.3;0.6 0.2_+/-0.4;0.4 06-06-01 327 0.9 +/- 0.2; 0.3 12-04-01 282 2.7 +/- 0.4; 0.6 06-11-01 203 1.9 +/- 0.4; 0.5 0.2+/- 0.4;0.4 12-11-01 285 3.7 +/-_0.4;0.8 0.1 +/-_0.5;0.5 327 2.6 +/- 0.3; 0.6 12-18-01 285 3.6 +/- 0.4; 0.7 06-19-01 06-26-01 285 2.1 +/-_0.3;0.5 -0.1_+/-0.5;0.5 12-26-01 325 2.8 +/- 0.4; 0.6 0.4+/- 0.4;0.4 2nd Qtr. Mean+/-s.d. 2.0 +/-0.6 -0.1+/- 0.3 4th Qtr. Mean+/-s.d. 3.0 +/-0.8 0.3+/- 0.4 a Volume based on two week collection period.

II -7

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange 3

Required LLD: Gross Beta = 0.01, 1-131 = 0.07 pCi/mr 3

Units: 10.2 pCi/m BY-21 Byron Nearsite N Date Volume Gross Date Volume 3

Gross 3

Beta 1-131 Collected (m ) Beta 1-131 a Collected (m ) a 01-02-01 243 2.3 +/-_0.4;0.6 07-03-01 284 2.8 +/- 0.4; 0.6 01-09-01 285 2.9 +/- 0.4; 0.7 -0.6 +/- 0.5; 0.5 07-10-01 286 2.5 +/-_0.3;0.6 -0.7_+/-0.5;0.5 01-16-01 285 2.1 +/- 0.4; 0.6 07-17-01 284 2.2 +/- 0.3; 0.5 01-23-01 NSb - 07-24-01 286 3.0 +/- 0.4; 0.7 0.1 +/- 0.4;0.4 01-30-01 288 2.1 +/- 0.4; 0.6 07-31-01 284 2.4 +/- 0.3; 0.5 02-06-01 284 2.7 +/-_0.4;0.6 -0.3-+/-0.5;0.5 08-07-01 285 2.7 + 0.4; 0.6 0.3 +/- 0.4;0.4 02-13-01 285 2.1 +/-_0.3;0.5 08-14-01 288 2.7 +/- 0.3; 0.6 02-20-01 284 4.0 +/--0.5;0.8 0.3_+/-0.4;0.4 08-21-01 285 2.3 +/--0.4;0.5 0.0-+/-0.5;0.5 02-27-01 280 2.7 +/- 0.4; 0.6 08-28-01 282 2.9 +/- 0.3; 0.6 03-06-01 289 2.1 +/-_0.4;0.5 0.1_+/-0.3;0.3 09-04-01 286 2.5 +/--0.4;0.6 -0.2_+/-0.4;0.4 03-13-01 289 1.3 +/- 0.3; 0.4 09-11-01 285 1.7 +/- 0.3; 0.5 03-20-01 291 1.8 +/-_0.3;0.5 -0.4_+/-0.5;0.5 09-18-01 284 2.4 +/- 0.4; 0.6 -0.4 +/- 0.4;0.4 03-27-01 288 2.0 +/- 0.3; 0.5 09-25-01 291 2.2 +/- 0.3; 0.5 1st Qtr. Mean+/-s.d. 2.3 +/-0.7 -0.2+/- 0.4 3rd Qtr. Mean+/-s.d. 2.5 +/-0.3 -0.1+/- 0.4 04-03-01 285 2.1 +/-_0.4; 0.5 0.6_+/-0.5;0.5 10-02-01 279 2.1 +/-_0.4;0.5 -0.7-+/-0.5;0.6 04-10-01 282 1.8 +/- 0.4; 0.5 10-09-01 286 2.7 +/- 0.4; 0.6 04-17-01 283 2.9 +/-_0.4;0.6 0.6-+/-0.4;0.5 10-16-01 286 2.2_+/-0.3;0.5 0.4+/-0.4;0.4 04-24-01 287 2.3 +/- 0.4; 0.6 10-23-01 295 1.7 +/- 0.3; 0.5 05-01-01 285 2.6 +/- 0.3; 0.6 -0.1 - 0.5;0.5 10-30-01 324c 1.8 +/-_0.3;0.5 -0.3_+/-_0.4;0.4 05-08-01 283 2.0 +/- 0.4; 0.5 11-06-01 288 2.3 +/-_0.4;0.5 05-15-01 286 2.1 +/-_0.3;0.5 0.6_+/-0.4;0.4 11-13-01 283 2.7 +/--0.4;0.6 0.0_+/-0.5;0.5 05-22-01 288 1.9 +/- 0.3; 0.5 11-20-01 284 5.4 +/- 0.5; 1.1 05-29-01 282 0.8 +/-0.3;0.3 0.1 +/-0.5;0.5 11-27-01 292 3.2 +/-_0.4;0.7 -0.2_+/-0.4;0.4 06-06-01 328 0.7 +/- 0.2; 0.3 12-04-01 282 2.5 +/--0.4;0.6 202 1.8 +/- 0.4; 0.5 -0.7 +/- 0.5;0.5 12-11-01 285 3.7 +/- 0.4; 0.8 0.4 +/- 0.5;0.5 06-11-01 06-19-01 326 2.4 +/- 0.3; 0.6 12-18-01 283 2.4 +/- 0.3; 0.5 286 1.8 +/-_0.3;0.4 -0.3 +/-0.4;0.4 12-26-01 326 2.7 +/-_0.4; 0.6 0.4_+/-0.5;0.5 06-26-01 2nd Qtr. Mean+/-s.d. 1.9 +/-0.6 0.1+/- 0.5 4th Qtr. Mean+/-s.d. 2.7 +/-1.0 0.0+/- 0.4 aVolume based on two week collection period.

b Pump found not running; samples for week invalid.

'High meter reading of 191.0 hrs. believed due to timer "reset" during pump rewiring; used 159.8 hrs. for calculations.

111 -8

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange 3

Required LLD: Gross Beta = 0.01, 1-131 = 0.07 pCi/m 3

Units: 10-2 pCi/m BY-22 Byron Nearsite ESE Date Volume Gross Date Volume Gross Collected 3 (M ) Beta 1-131 a Collected (m3) Beta 1-131 a 01-02-01 243 1.6 +/- 0.4; 0.5 07-03-01 284 2.6 +/- 0.4; 0.6 01-09-01 285 3.5 +/-_0.4; 0.8 0.2_+/-0.5;0.5 07-10-01 286 2.3 +/-0.3;0.5 -0.4_+/-_0.5;0.5 01-16-01 285 2.6 +/- 0.4; 0.5 07-17-01 284 2.0 0.3; 0.5 01-23-01 285 4.1 +/-_0.4; 0.5 -0.3_+0.4;0.4 07-24-01 286 2.9 +/- 0.4; 0.7 -0.1 +/- 0.5;0.5 01-30-01 288 2.0 +/- 0.4; 0.5 07-31-01 284 2.6 +/- 0.3; 0.6 02-06-01 285 2.5 +/- 0.4; 0.6 0.5 + 0.5;0.5 08-07-01 286 3.2 +/- 0.4; 0.7 -0.1 +/- 0.5;0.5 02-13-01 285 2.3 +/- 0.4; 0.5 08-14-01 287 2.5 +/- 0.3; 0.6 02-20-01 284 3.4_+/-0.4;0.8 0.2_+/-0.3;0.3 08-21-01 285 1.8 +/- 0.3; 0.5 -0.7 +/- 0.5;0.5 02-27-01 284 2.7 +/- 0.4; 0.6 08-28-01 282 3.2 +/- 0.4; 0.7 03-06-01 285 2.3 +/-_0.4;0.6 -0.2_+/-0.5;0.5 09-04-01 287 2.1 +/-_0.4;0.5 0.1_+/-0.5;0.5 03-13-01 284 1.9 +/- 0.3; 0.5 09-11-01 285 1.4 +/- 0.3; 0.4 03-20-01 286 2.0 +/- 0.3; 0.5 -0.2 +/- 0.5;0.5 09-18-01 284 2.3 +/-_0.4; 0.6 -0.2_+/-0.4;0.4 03-27-01 283 2.5 +/- 0.3; 0.6 09-25-01 291 2.3 +/- 0.3; 0.5 1st Qtr. Mean+/-s.d. 2.6 +/-0.7 0.0+/- 0.3 3rd Qtr. Mean+/-s.d. 2.4 +/-0.5 -0.2+/- 0.3 04-03-01 285 2.1 +/- 0.4; 0.5 -0.1 +/- 0.4;0.4 10-02-01 280 2.2 +/--0.4;0.5 -0.4-+/-0.5;0.5 04-10-01 285 1.7 +/- 0.3; 0.5 10-09-01 286 3.0 +/- 0.4; 0.7 04-17-01 283 1.3 +/-_0.3;0.4 0.2_+/-0.4;0.4 10-16-01 287 2.3 +/-_0.3;0.5 -0.6-+/-0.5;0.5 04-24-01 287 2.4 +/- 0.4; 0.6 10-23-01 295 2.1 +/-_0.4; 0.5 05-01-01 285 2.8 +/-_0.3;0.6 0.1_+/-0.4;0.4 10-30-01 273c 2.2 +/-0.4; 0.5 -0.6-+/-0.4;0.4 05-08-01 283 2.3 +/- 0.4; 0.6 11-06-01 288 2.1 +/-_0.4;0.5 05-15-01 286 2.4 +/-0.3;0.5 0.2_+/-0.4;0.4 11-13-01 283 2.7 +/- 0.4; 0.6 -0.0+/- 0.4;0.4 05-22-01 288 2.1 +/-_0.3;0.5 11-20-01 284 5.1 +/- 0.5; 1.0 05-29-01 282 0.8 +/-0.3;0.3 0.2_+/-_0.6;0.6 11-27-01 292 2.8 +/- 0.3; 0.6 0.3 +/- 0.4;0.4 06-06-01 328b 0.4_+/-0.2;0.2 12-04-01 282 3.1 +/--0.4;0.7 06-11-01 199 1.9 +/- 0.4; 0.5 -0.9 +/- 0.5;0.5 12-11-01 285 3.9 +/- 0.4; 0.8 -0.2 +/- 0.5;0.5 06-19-01 321 2.8 +/-_0.4; 0.6 12-18-01 283 3.5 t 0.4; 0.7 06-26-01 286 1.8 +/--0.3;0.4 -0.1_+/-0.4;0.4 12-26-01 326 2.6 +/- 0.3; 0.6 0.3 +/- 0.5;0.5 2nd Qtr. Mean+/-s.d. 1.9 +/-0.7 -0.1+/- 0.4 4th Qtr. Mean+/-s.d. 2.9 +/-0.9 -0.2+/- 0.4 "aVolume based on two week collection period.

b Pump running; vacuum and flowrate readings zero. Collector replaced pump.

' Low meter reading of 110.9 hrs. believed due to timer "reset" during pump rewiring; used 159.8 hrs. for calculations.

111 -9

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLD: Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 3

Units: 10.2 pCi/m BY-23 Byron Nearsite S Date Volume Gross Date Volume Gross Collected (m3) Beta 1-131 a Collected (m3) Beta 1-131 a 01-02-01 243 2.3 _0.4; 0.6 07-03-01 284 2.4 +/- 0.4; 0.6 01-09-01 285 2.8 +/-0.4;0.7 0.3 +/-0.4;0.4 07-10-01 286 2.2 +/- 0.3; 0.5 0.4 +/- 0.5;0.5 01-16-01 285 2.7 _0.4; 0.6 07-17-01 284 1.9 +/- 0.3; 0.5 01-23-01 285 4.2 +/-0.4; 0.6 -0.1 +/- 0.5;0.5 07-24-01 286 2.6 +/- 0.4; 0.6 -0.0 +/- 0.5;0.5 01-30-01 288 2.2 0.4; 0.6 07-31-01 284 2.1 +/-_0.3;0.5 0.6-+/-0.4;0.4 08-07-01 288 2.6 +/- 0.4; 0.6 -0.0 +/- 0.4; 0.4 02-06-01 285 2.2_0.4;0.5 02-13-01 284 2.1 -0.3;0.5 08-14-01 285 2.4 +/- 0.3; 0.5 284 3.6 +/- 0.4; 0.8 0.1 +/- 0.4; 0.4 08-21-01 285 2.0 +/-0.3;0.5 -0.1_+/-_0.4;0.4 02-20-01 02-27-01 284 2.9 0.4; 0.7 08-28-01 282 2.7 +/- 0.3; 0.6 03-06-01 285 2.8 _0.4; 0.6 -0.8 +/- 0.5;0.5 09-04-01 287 1.9 +/- 0.4; 0.5 0.3 +/- 0.5;0.5 284 1.7 +/-0.3; 0.4 09-11-01 285 1.4 +/- 0.3; 0.4 03-13-01 03-20-01 286 1.8 +/- 0.3; 0.5 -0.2 +/- 0.4;0.4 09-18-01 285 2.2 +/- 0.4; 0.5 -0.1 +/- 0.4;0.4 283 2.3 _0.3; 0.5 09-25-01 291 2.3 +/- 0.3; 0.5 03-27-01 1st Qtr. Mean+/-s.d. 2.6 +/-0.7 -0.0+/- 0.5 3rd Qtr. Mean+/-s.d. 2.2 +/-0.3 0.1+/- 0.2 286 1.8 +/-t0.3;0.5 -0.0-+/-0.5;0.5 10-02-01 280 1.9 +/-_0.4;0.5 0.3 +/-0.4;0.4 04-03-01 04-10-01 285 1.7 +/-_0.3;0.5 10-09-01 286 2.9 +/- 0.4; 0.6 04-17-01 283 1.5 +/-_0.3;0.4 0.3_+/-0.5;0.5 10-16-01 285 2.3 +/-_0.3;0.5 0.3 +/-0.5;0.5 04-24-01 286 2.2 +/-0.4;0.5 10-23-01 295 2.2 +/- 0.4; 0.5 2.7 +/-_0.3;0.6 -0.4_+/-0.5;0.5 10-30-01 279 2.8 +/--0.4; 0.6 -0.2_+/-0.5;0.5 05-01-01 285 283 1.7 +/- 0.3; 0.5 11-06-01 293 2.6 +/- 0.4; 0.6 05-08-01 286 1.9 +/-_0.3;0.5 -0.0+/-0.4;0.4 11-13-01 288 2.5 +/--0.4;0.6 -0.2_+/-0.4;0.4 05-15-01 05-22-01 287 2.0 +/- 0.3; 0.5 11-20-01 289 4.7 +/--0.5; 1.0 05-29-01 282 0.8 +/--0.3;0.3 0.3-+/-0.4;0.4 11-27-01 297 2.8 +/-_0.3;0.6 0.4_+/-0.4;0.4 06-06-01 328 0.8 +/- 0.2; 0.3 12-04-01 287 2.6 +/- 0.4; 0.6

-0.2 +/- 0.5;0.5 12-11-01 290 3.9 +/- 0.4; 0.8 0.3 +/- 0.4;0.4 06-11-01 202 1.6 +/- 0.4; 0.5 326 2.5 +/-_0.3;0.6 12-18-01 283 3.9 +/- 0.4; 0.8 06-19-01 291 1.9 +/--0.3;0.4 0.2-+/-0.4;0.4 12-26-01 327 3.2 +/-_0.4; 0.7 -0.1 +/-_0.4;0.4 06-26-01 2nd Qtr. Mean+/-s.d. 1.8 +/-0.6 0.0+/- 0.3 4th Qtr. Mean+/-s.d. 2.9 +/-0.8 0.1+/- 0.3 a Volume based on two week collection period.

IH- 10

BYRON Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates: Continuous; weekly exchange Iodine Cartridges: Continuous, biweekly exchange Required LLD: Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 3

Units: 10.2 pCi/m BY-24 Byron Nearsite SW Date Volume Gross Date Volume Gross (m3 ) Beta 1-131 Collected (m3) Beta 1-131 a Collected a 01-02-01 245 2.4 +/- 0.4; 0.6 07-03-01 284 2.6 +/- 0.4; 0.6 01-09-01 285 3.5 +/-_0.4;0.8 -0.2_+/-0.5;0.5 07-10-01 281 2.2+/-0.3;0.5 -0.2_+/-0.5;0.5 01-16-01 285 2.4_+/-0.4;0.6 07-17-01 284 2.2 +/- 0.3; 0.5 01-23-01 285 4.1 +/-_0.4;0.6 0.7_+/-0.5;0.5 07-24-01 286 2.5 -t_0.4;0.6 -0.2-+/-0.4;0.4 01-30-01 288 2.0 +/- 0.4; 0.6 07-31-01 284 2.7 +/- 0.3; 0.6 02-06-01 285 2.8 +/-_0.4; 0.6 -0.4_+/-0.5;0.5 08-07-01 288 2.8 +/- 0.4; 0.6 0.5 +/- 0.4;0.4 02-13-01 284 2.1 +/-_0.3;0.5 08-14-01 285 2.4 +/- 0.3; 0.5 02-20-01 284 3.4 +/- 0.4; 0.7 0.1 +/- 0.4; 0.4 08-21-01 285 1.8 +/- 0.3; 0.5 -0.3 +/- 0.5;0.5 02-27-01 284 2.9 +/- 0.4; 0.7 08-28-01 282 3.1 +/-_0.4;0.7 03-06-01 285 2.7 +/- 0.4; 0.6 0.6 +/- 0.5;0.5 09-04-01 287 1.9 +/-_0.4;0.5 0.5_+/-0.4;0.4 03-13-01 284 2.1 +/-_0.3;0.5 09-11-01 285 1.7 +/-_0.3;0.4 03-20-01 286 1.9 +/- 0.3; 0.5 -0.2 +/- 0.5;0.5 09-18-01 285 2.2 +/- 0.4; 0.5 0.1 +/- 0.4;0.4 03-27-01 283 2.3 +/-_0.3;0.5 09-25-01 291 2.4 +/- 0.3; 0.5 1st Qtr. Mean+/-s.d. 2.7 +/-0.7 0.1+/- 0.5 3rd Qtr. Mean+/-s.d. 2.3 +/-0.4 0.0+/- 0.4 04-03-01 286 2.0 +/-_0.4;0.5 -1.0-+/-0.5;0.5 10-02-01 280 2.4 +/- 0.4; 0.6 -0.5 +/- 0.5 ;0.5 04-10-01 285 1.6 +/- 0.3; 0.4 10-09-01 286 3.0 +/- 0.4; 0.7 04-17-01 283 1.3 +/- 0.3; 0.4 -0.1 +/- 0.5;0.5 10-16-01 285 2.6 +/-_0.3;0.6 -0.2_+/-0.5;0.5 04-24-01 286 2.1 +/- 0.4; 0.5 10-23-01 295 2.1 +/-_0.4;0.5 05-01-01 285 2.6 +/- 0.3; 0.6 -0.3 +/- 0.5;0.5 10-30-01 275 2.4_+/-0.4;0.6 0.5_+/-0.5;0.5 05-08-01 283 1.8 +/- 0.4; 0.5 11-06-01 288 2.2 0.4; 0.5 05-15-01 286 2.2 +/- 0.3; 0.5 0.1 +/- 0.4;0.4 11-13-01 283 2.5 +/-_0.4; 0.6 0.1 +/-0.4;0.4 05-22-01 287 1.6 +/- 0.3; 0.4 11-20-01 284 5.3 +/--0.5; 1.1 05-29-01 282 0.9 +/-_0.3;0.3 -0.1 +/-_0.4;0.4 11-27-01 292 2.8 +/--0.3;0.6 0.3_+/-.0.4;0.4 06-06-01 328 0.7 +/- 0.2; 0.3 12-04-01 282 2.5 +/-_0.4;0.6 06-11-01 202 1.8 +/- 0.4; 0.5 0.2 +/- 0.4;0.4 12-11-01 285 3.7 +/- 0.4; 0.8 -1.0_+/-0.5;0.5 06-19-01 326 2.4_+/-0.3;0.5 12-18-01 283 3.4 +/- 0.4; 0.7 06-26-01 286 2.1 +/-_0.3;0.5 0.1_+/-0.4;0.4 12-26-01 327 3.2 +/- 0.4; 0.7 -0.1 +/- 0.4;0.4 2nd Qtr. Mean+/-s.d. 1.8 +/-0.5 -0.2+/- 0.4 4th Qtr. Mean_+s.d. 2.9 +/-0.9 -0.1+/- 0.5 a Volume based on two week collection period.

I -11

BYRON Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM 3 Required LLDs: Cs-134 = 0.01, Cs-137 = 0.01 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; 3

Ba/La-140 = 0.025; pCi/m 3

Units: 104 pCi/m Sample Description and Concentration BY-08 (C) Leaf River 2001 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-3194 BYAP-6606 BYAP-9900 BYAP- 11951 Volume 3,666 3,711 3,718 3,749 Mn-54 -4.6 +/- 6.9; 6.9 1.2 +/- 5.7; 5.7 -5.8 +/- 7.2; 7.3 -4.1+/- 6.1; 6.1 Fe-59 35.8_+/- 13.6; 15.0 10.9_+/- 9.3; 9.5 -17.4++/- 14.1; 14.4 23.5_+/- 8.9; 9.8 Co-58 2.7+/- 4.6; 4.7 -7.3 +/- 5.9; 6.1 1.6_+/- 5.2; 5.2 4.2_+/- 6.8; 6.9 Co-60 4.9_+/- 4.3; 4.4 6.8 +/- 7.3; 7.4 2.7 +/- 9.5; 9.5 6.7 +/- 7.3; 7.4 Zn-65 12.2_+/- 8.8; 9.0 2.0_+/- 11.4; 11.4 11.2_+/- 16.2; 16.4 2.0+/- 11.3; 11.3 Zr/Nb-95 -17.4_+/- 6.1; 6.9 -8.2_+/- 10.3; 10.4 -19.7+/- 7.4; 8.2 2.8 +/- 6.7; 6.8 Cs-134 -0.7++/- 7.2; 7.2 6.4_+/- 5.4; 5.5 2.0+/- 6.1; 6.1 -4.0_+/- 7.0; 7.1 Cs-137 1.5 +/-+6.5; 6.5 6.2_+/- 6.8; 6.9 -1.3-+/- 6.5; 6.5 4.2+/-t 6.3; 6.4 Ba/La-140 20.9 +/- 7.8; 8.6 25.1 +/- 7.7; 8.9 53.8-+/- 10.9; 14.5 9.6_+/- 7.2; 7.3 BY-21 Byron Nearsite N 2001 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-3195 BYAP-6607,8 BYAP-9901 BYAP- 11952,3 Volume 3,397 3,709 3,717 3,800 Mn-54 0.8 +/- 8.3; 8.3 -2.7++/- 5.0; 5.1 8.4++/- 4.6; 4.8 -1.5_+/- 5.1; 5.1 Fe-59 -8.0_+/- 16.3; 16.3 3.9 +/- 6.7; 6.7 -1.6_+/- 6.8; 6.8 -5.0 +/- 8.7; 8.7 Co-58 -0.7_+/- 6.1; 6.1 -0.8 +/- 4.2; 4.2 -11.9++/- 6.5; 6.8 2.7 +/- 2.9; 2.9 Co-60 3.5 +/- 8.0; 8.0 -2.4_+/- 4.6; 4.6 5.7_+/- 7.0; 7.1 -1.0-+/- 6.5; 6.5 Zn-65 5.5_+/- 10.7; 10.8 -13.2_+/- 9.3; 9.6 -1.0+/- 13.7; 13.7 -6.9+/- 10.1; 10.2 Zr/Nb-95 -6.4_+/- 7.2; 7.3 -0.4_+/- 3.8; 3.8 2.6_+/- 13.4; 13.4 2.6 +/- 8.7; 8.7 Cs- 134 3.4-+/- 4.8; 4.9 -0.5 +/- 4.2; 4.2 -6.8-+/- 7.9; 8.0 2.7 +/- 4.6; 4.7 Cs-137 -0.7++/- 7.2; 7.2 -2.5 +/- 3.7; 3.7 -16.0-+/- 7.4; 7.9 -1.2++/- 4.3; 4.3 Ba/La-140 -53.4+/- 8.4; 12.7 -3.3 +/- 4.7; 4.7 12.3 +/- 7.2; 7.5 -37.7++/- 5.6; 8.8 III -12

BYRON Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM 3 Required LLDs: Cs-134 = 0.01, Cs-137 = 0.01 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; 3

Ba/La-140 = 0.025; pCi/m 3

Units: 104 pCi/m Sample Description and Concentration BY-22 Byron Nearsite ESE 2001 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-3196 BYAP-6609 BYAP-9902 BYAP-11954 Volume 3,667 3,703 3,718 3,750 Mn-54 -0.8-+/- 6.1; 6.1 0.8-+/- 6.4; 6.4 -0.4-+/- 5.3; 5.3 3.8 +/- 5.3; 5.4 Fe-59 8.9-+/- 6.8; 7.0 10.9 +/- 9.3; 9.5 17.5+/- 10.2; 10.7 -25.0-+/- 16.2; 16.8 Co-58 -0.5 +/- 4.9; 4.9 -8.5-+/- 6.4; 6.5 -15.4_+/- 7.2; 7.7 -9.3 +/- 6.7; 6.9 Co-60 9.0 +/- 7.5; 7.6 -2.8 +/- 8.2; 8.3 1.3 +/- 5.6; 5.7 0.2 +/- 5.2; 5.2 Zn-65 4.1 +/- 12.6; 12.7 -4.1 +/- 15.3; 15.3 2.0+/- 16.1; 16.1 6.0+/- 6.1; 6.2 Zr/Nb-95 15.3 +/- 5.0; 5.7 -4.1-+/- 12.5; 12.5 1.8-+/- 6.1; 6.2 -19.1 +/- 6.8; 7.6 Cs-134 -2.9 +/- 4.9; 4.9 2.0+/- 6.1; 6.2 -4.9 +/- 6.9; 7.0 -5.9-- 8.1; 8.1 Cs-137 0.1 +/- 6.3; 6.3 -1.2-+/- 5.9; 5.9 1.5 +/- 5.9; 5.9 -0.8-+/- 7.1; 7.1 Ba/La-140 -146.9++/- 11.6; 28.6 -87.4+/- 6.7; 16.9 12.3 +/- 7.2; 7.5 -13.5 +/- 6.0; 6.5 BY-23 Byron Nearsite S 2001 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-3197,8 BYAP-6610 BYAP-9903 BYAP-11955 Volume 3,668 3,717 3,718 3,785 Mn-54 -1.3 +/- 3.9; 4.0 0.8-+/- 6.2; 6.2 1.5 +/- 6.5; 6.5 2.6 +/- 7.3; 7.3 9.8+/- 11.1; 11.2 -37.4-+/- 13.4; 15.0 11.1 +/- 9.3; 9.5 -7.3-+/- 11. 1; 11. 1 Fe-59 Co-58 -3.3 +/- 4.2; 4.3 -6.4-+/- 6.6; 6.7 5.8-+/- 5.9; 5.9 -8.2 + 6.8; 7.0 Co-60 1.8 +/- 4.3; 4.3 7.0-+/- 9.0; 9.1 5.5 +/- 4.8; 4.9 2.3-+/- 5.9; 5.9 Zn-65 -6.6 +/- 8.5; 8.5 -3.0-+/- 13.2; 13.2 -4.1 +/- 15.3; 15.3 -15.8_+/- 16.4; 16.7 Zr/Nb-95 -2.6_+/- 3.9; 3.9 2.3-+/- 4.9; 4.9 0.3-+/- 6.0; 6.0 -9.3 +/- 7.6; 7.8 Cs- 134 -2.0-+/- 4.3; 4.3 -1.5 +/- 6.9; 6.9 1.4-+/- 5.0; 5.0 9.1 +/- 7.6; 7.8 Cs- 137 -0.9-+/- 3.3; 3.3 -0.7-+/- 6.6; 6.6 3.2_+/- 4.0; 4.0 2.2-+/- 5.9; 5.9 Ba/La-140 -52.6-+/- 4.9; 10.6 -2.3-+/- 6.7; 6.7 -32.1 +/- 5.5; 7.9 9.5-+/- 7.1; 7.3 I11-13

BYRON Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM Required LLDs: Cs-134 = 0.01, Cs-137 = 0.01 pCi/m3 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/m3 3

Units: 10.4 pCi/m Sample Description and Concentration BY-24 Byron Nearsite SW 2001 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code BYAP-3199 BYAP-6611 BYAP-9904 BYAP-1 1956 Volume 3,670 3,712 3,714 3,750 Mn-54 -3.8_+/- 7.1; 7.1 2.7 +/- 6.0; 6.0 6.5_+/- 5.1; 5.2 -5.3_t 6.6; 6.6 Fe-59 17.9_+/- 9.7; 10.2 7.8 +/- 8.7; 8.8 6.4+/- 11.1; 11.1 -7.4t 11.2; 11.2 Co-58 -5.2 +/- 6.9; 7.0 -7.1 +/- 5.2; 5.4 6.0+/- 5.1; 5.2 1.7 t 4.3; 4.3 Co-60 2.3+/- 7.2; 7.2 7.7_+/- 5.6; 5.8 1.5 +/- 7.7; 7.7 2.4+/- 6.0; 6.0 Zn-65 -12.2_+/- 17.7; 17.9 -3.1 +/- 13.2; 13.2 8.2+/- 13.4; 13.5 -7.0_t 12.0; 12.1 Zr/Nb-95 -2.6_+/- 5.8; 5.8 -8.0_+/- 7.0; 7.1 -1.0_+/- 5.3; 5.3 6.4; 7.2

-18.9 ___

Cs-134 7.0 +/- 7.3; 7.4 0.5_+/- 4.8; 4.8 0.3 +/- 6.6; 6.6 6.2-+/- 6.2; 6.3 Cs-137 -0.7 +/- 6.7; 6.7 -5.4++/- 6.2; 6.2 0.4 +/- 7.9; 7.9 2.8-+/- 6.1; 6.1 Ba/La-140 57.5_+/- 6.0; 11.9 -46.1+/- 8.2; 11.6 -99.0_+/- 11.5; 21.0 21.3 +/- 7.6; 8.5 111 -14

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 01-02-01 02-06-01 03-06-01 04-03-01 Lab Code BYMI-1 BYMI-887 BYNI-1581 BYMI-2437 1-131 -0.04 +/- 0.14; 0.14 -0.14 +/- 0.20; 0.20 0.12 +/-0.15;0.15 -0.17 +/- 0.16; 0.17 Mn-54 1.8_+/- 3.1; 3.1 -0.5_+/- 3.2; 3.2 2.8_+/- 2.0; 2.0 0.2-+/- 3.1; 3.1 Fe-59 4.1_+/- 6.1; 6.1 1.2-+/- 6.5; 6.5 -2.4_+/- 5.3; 5.3 0.5_+/- 6.8; 6.8 Co-58 1.1_+/-3.1; 3.1 0.2-+/- 2.2; 2.2 0.3 +/- 2.0; 2.0 1.0_+/- 3.0; 3.0 Co-60 -1.5+/- 3.9; 3.9 2.1 +/- 3.4; 3.4 0.5_+/- 1.9; 1.9 1.5_+/- 3.8; 3.8 Zn-65 -2.2 +/- 7.9; 7.9 -6.0-+/- 7.5; 7.6 0.2_+/- 4.9; 4.9 4.6_+/- 8.8; 8.9 Zr/Nb-95 -2.5 +/- 3.0; 3.0 -0.1 +/- 3.3; 3.3 1.8_+/- 2.2; 2.3 -2.9 +/- 5.9; 5.9 Cs- 134 1.5 +/- 4.0; 4.0 -0.6 +/- 3.6; 3.6 -0.7 +/- 2.4; 2.4 -1.8_+/- 4.4; 4.4 Cs-137 1.8-+/- 3.3; 3.3 2.5_+/- 2.1; 2.1 -0.9 +/- 2.6; 2.6 0.4_+/- 2.9; 2.9 Ba/La-140 5.2_+/- 3.8; 3.9 -1.7_+/- 3.3; 3.3 -5.0_+/- 1.6; 1.8 -7.1+/- 3.1; 3.2 Date Collected 05-01-01 05-15-01 05-29-01 06-12-01 Lab Code BYMI-3411 BYMI-3911,2 BYMI-4257,8 BYMI-4862 1-131 -0.03 +/- 0.20; 0.20 -0.19 +/- 0.25; 0.25 -0.04 +/- 0.22; 0.22 -0.24 +/- 0.18; 0.19 Mn-54 0.3+/- 1.9; 1.9 -0.1 +/- 2.5; 2.5 -0.9_+/- 1.3; 1.3 0.4_+/- 3.8; 3.8 Fe-59 -1.9+/- 5.0; 5.0 0.2 +/- 5.4; 5.4 0.6_+/- 3.1; 3.1 -4.5_+/- 8.1; 8.1 Co-58 0.3+/-t 2.1; 2.1 0.2+/- 2.7; 2.7 -0.5_+/- 1.3; 1.3 -3.3_+/- 3.6; 3.6 Co-60 -4.3_+/- 2.7; 2.7 2.3_+/- 2.4; 2.4 0.5_+/- 1.7; 1.7 3.6_+/- 3.9; 3.9 Zn-65 -1.9 +/- 4.5; 4.5 -1.9_+/- 6.1; 6.1 -0.7_+/- 3.1; 3.1 1.4_+ 8.6; 8.6 Zr/Nb-95 -1.1 +/- 2.0; 2.0 -3.3 +/- 2.5; 2.6 0.1 +/- 1.3; 1.3 -3.4 +/- 3.5; 3.5 Cs- 134 1.3 +/- 2.4; 2.5 -0.6_+/- 2.9; 2.9 -0.0 +/- 1.4; 1.4 2.5 +/- 4.5; 4.6 Cs-137 0.2+/- 2.0; 2.0 0.3 +/- 2.3; 2.3 0.8_+/- 1.4; 1.4 1.4 +/- 4.3; 4.3 Ba/La-140 -2.3-+/- 1.9; 1.9 -1.0-+/- 2.4; 2.4 -2.3_+/- 1.4; 1.4 0.4-+/- 3.3; 3.3 lII -15

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 RY-20 K- Reeverts Dairy Farm Date Collected 06-26-01 07-10-01 07-24-01 08-07-01 Lab Code BYMI-5255 BYMI-5774 BYNI-6378 BYMI-6918 1-131 -0.06 +/- 0.17; 0.17 -0.12 +/- 0.19; 0.20 -0.01 t0.14; 0.14 0.08 +/-_0.15;0.15 Mn-54 0.7_+/- 4.0; 4.0 2.0 +/- 2.3; 2.3 -1.0 +/- 2.3; 2.3 1.3 +/- 3.9; 3.9 Fe-59 -4.1 +/- 7.9; 7.9 -4.5 +/- 5.2; 5.3 -3.0 +/- 4.4; 4.4 4.2_+/- 6.9; 6.9 Co-58 1.8 +/- 3.5; 3.5 -0.2_+/- 2.0; 2.0 1.9_+/- 2.2; 2.2 -1.3_+/- 3.9; 3.9 Co-60 5.9_+/- 4.7; 4.8 -2.5 +/- 2.2; 2.3 0.2_+/- 2.2; 2.2 -2.5 +/- 5.4; 5.4 Zn-65 9.3 +/- 9.4; 9.5 -2.8-+/- 5.8; 5.8 0.4 +/- 5.0; 5.0 10.8_+/- 8.9; 9.0 Zr/Nb-95 0.5 +/- 3.7; 3.7 -3.8_+/- 2.2; 2.2 -4.9_+/- 4.8; 4.9 -1.7_+/- 3.6; 3.6 Cs-134 2.8_+/- 4.0; 4.0 2.0_+/- 2.3; 2.3 1.2+/-t 1.9; 1.9 1.2 +/- 3.9; 3.9 Cs-137 1.3 +/- 3.7; 3.7 1.5_+/- 2.4; 2.4 1.6 +/- 2.5; 2.5 2.4 +/- 3.5; 3.6 Ba/La-140 1.6+/-t 3.4; 3.4 -2.9_+/- 2.4; 2.4 1.5_+/- 1.3; 1.3 -6.7_+/- 4.0; 4.1 Date Collected 08-21-01 09-04-01 09-18-01 10-02-01 Lab Code BYMI-7230 BYMI-7705 BYMI-8108 BYMI-8565 1-131 -0.04 +/-_0.12;0.12 -0.14 +/- 0.12; 0.13 0.00 +/- 0.21; 0.21 0.08 +/--0.13;0.13 Mn-54 0.6-+/- 4.0; 4.0 0.0+/- 3.1; 3.1 3.7 _ 4.6; 4.7 0.8_+/- 1.4; 1.4 Fe-59 1.9+/- 8.7; 8.7 1.0 +/- 6.6; 6.6 -4.7 +/- 8.5; 8.5 -0.2 +/- 3.3; 3.3 Co-58 2.2++/- 4.1; 4.1 1.1 +/- 3.4; 3.4 0.5 +/- 4.0; 4.0 -0.8_+/- 1.4; 1.4 Co-60 1.1-+/-5.1; 5.1 -0.6 +/- 3.3; 3.3 -5.1 +/- 5.9; 5.9 -1.0_+/- 1.6; 1.6 Zn-65 0.4+/- 11.0; 11.0 -1.9-+/- 8.1; 8.1 3.6_+/- 11.1; 11.1 -6.1 +/- 3.7; 3.8 Zr/Nb-95 -0.5-+/- 3.8; 3.8 -2.2 +/- 3.2; 3.2 -4.2 +/- 4.6; 4.6 -3.9_+/- 1.4; 1.5 Cs- 134 1.1 +/- 4.3; 4.3 0.2_+/- 3.6; 3.6 -0.3 +/- 4.2; 4.2 -0.2 +/- 1.7; 1.7 Cs-137 -2.5 +/- 4.4; 4.4 -0.2_+/- 3.4; 3.4 3.5 +/- 4.4; 4.4 0.1-+/- 1.6; 1.6 Ba/La-140 -1.7_+/- 5.0; 5.0 2.2_+/- 3.2; 3.2 -7.6+/-t 5.0; 5.2 -5.8 +/- 1.3; 1.6 Mll - 16

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 10-16-01 10-30-01 11-06-01 12-04-01 Lab Code BYMI-9296,7 BYMI-9897 BYMI-10161 BYMI-10792 1-131 -0.15 +/-_0.17;0.17 -0.08 +/- 0.20; 0.20 0.07 +/- 0.19; 0.19 -0.01 +/-_0.14;0.14 Mn-54 -0.6 +/- 1.7; 1.7 -0.2 +/- 2.7; 2.7 -0.1+/- 2.1; 2.1 -6.2 +/- 4.2; 4.3 Fe-59 4.8 +/- 3.8; 3.9 -4.5 +/- 5.8; 5.8 6.9_+/- 3.9; 4.0 -4.8_+/- 8.1; 8.2 Co-58 0.4 +/- 1.7; 1.7 -0.8 +/- 2.6; 2.6 1.1 +/- 2.0; 2.0 -1.1 +/- 3.9; 3.9 Co-60 0.0+/- 2.1; 2.1 0.3 +/- 3.6; 3.6 0.2 +/- 2.4; 2.4 0.5+/- 4.1; 4.1 Zn-65 0.2-+/- 4.2; 4.2 -0.6_+/- 7.2; 7.2 -0.7 +/- 4.4; 4.4 3.8-+10.6; 10.6 Zr/Nb-95 -0.9 +/- 1.7; 1.7 2.7-+/- 3.2; 3.2 -3.4+/- 4.1; 4.2 -2.9+/- 4.0; 4.0 Cs-134 0.4-+/- 2.2; 2.2 -0.2+/- 3.6; 3.6 1.1_+/- 1.9; 1.9 -1.2-+/- 4.6; 4.6 Cs-137 0.9 +/- 1.7; 1.7 0.1 +/- 2.7; 2.7 1.9_+/- 2.0; 2.0 1.7 +/- 3.6; 3.6 Ba/La-140 -5.0-+/- 1.6; 1.8 -4.6 +/- 2.8; 2.9 -4.0-+/- 1.8; 1.9 0.5_t 3.9; 3.9 II - 17

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 1 (C) Dennis Herbert Date Collected 01-02-01 02-06-01 03-06-01 04-03-01 Lab Code BYMI-2 BYMI-888 BYMI-1582 BYMI-2438 1-131 0.09 +/- 0.15; 0.15 0.11 -0.18;0.18 0.05 +/-_0.11;0.11 -0.00 +/- 0.16; 0.16 Mn-54 1.6 +/- 2.3; 2.3 0.2+/- 1.7; 1.7 -0.3_+/- 1.9; 1.9 -1.5_+/- 2.1; 2.1 Fe-59 -3.3 +/- 6.1; 6.2 -1.4+/- 4.5; 4.5 -0.9_+/- 4.1; 4.1 2.2 +/- 6.3; 6.3 Co-58 1.0_+/- 2.6; 2.6 -0.2 1.9; 1.9 0.6+/- 1.8; 1.8 -1.5_+ 1.7; 1.7 Co-60 1.8_+/- 3.3; 3.4 0.2 1.9; 1.9 -1.0+/- 2.3; 2.3 0.4+22.2; 2.2 Zn-65 6.8_+/- 6.9; 7.0 2.3+/- 5.9; 5.9 3.0 4.0; 4.0 0.8 +/- 5.4; 5.4 Zr/Nb-95 1.8_+/- 2.8; 2.8 -0.7 2.2; 2.2 -1.5+/- 1.9; 1.9 -4.0+/- 2.2; 2.3 Cs- 134 -0.4_+/- 3.2; 3.2 1.5 2.0; 2.0 0.5+/- 2.0; 2.0 1.0 +/- 2.6; 2.6 Cs-137 -0.9_+/- 2.4; 2.5 -1.8+/- 2.2; 2.2 1.2 2.0; 2.0 1.1 +/- 2.3; 2.3 Ba/La-140 -2.0 +/- 2.4; 2.4 -1.2+/- 2.0; 2.0 -2.2 1.6; 1.7 1.8_+/- 2.4; 2.4 Date Collected 05-01-01 05-15-01 05-29-01 06-12-01 Lab Code BYMI-3412 BYMI-3913 BYMI-4259 BYMI-4863 1-131 0.08 +/-_0.19;0.19 0.02 +/- 0.23; 0.23 -0.09 +/- 0.18; 0.18 -0.14 +/- 0.21; 0.21 Mn-54 1.5_+/- 1.8; 1.8 0.2_+/- 1.6; 1.6 -1.8-+/- 3.4; 3.4 1.7+/- 3.8; 3.8 Fe-59 -2.4_+/- 3.9; 3.9 5.5 +/- 3.9; 4.0 -5.4_+/- 7.9; 7.9 2.1 +/- 7.8; 7.8 Co-58 0.3_+/- 1.6; 1.6 1.7_+/- 2.0; 2.1 -0.5_+/- 3.7; 3.7 0.3 +/- 3.9; 3.9 Co-60 -1.0.t 2.5; 2.5 3.0+/- 2.1; 2.2 3.1 +/- 4.0; 4.0 1.8_+/- 4.8; 4.8 Zn-65 1.8 +/- 4.7; 4.7 -3.4_+/- 5.3; 5.3 7.0_+/- 8.7; 8.8 -1.1 +/- 9.2; 9.2 Zr/Nb-95 -0.4 +/- 2.3; 2.3 2.4 +/- 2.2; 2.2 0.1 +/- 3.4; 3.4 -2.8 +/- 3.9; 3.9 Cs-134 0.1 +/- 2.3; 2.3 -0.2 +/- 2.3; 2.3 -0.8_+/- 3.8; 3.8 -3.7 + 4.7; 4.7 Cs- 137 -0.1 +/- 2.2; 2.2 1.6_+/- 2.0; 2.0 0.8_+/- 3.2; 3.2 0.9_+/- 3.6; 3.6 Ba/La-140 1.5_+/- 1.7; 1.7 -2.4_+/- 2.1; 2.1 0.8+/- 2.9; 2.9 -5.5 +/- 3.9; 4.0 HI -18

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134= 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 1 (C) Dennis Herbert Date Collected 06-26-01 07-10-01 07-24-01 08-07-01 Lab Code BYMI-5256 BYMI-5775 BYMI-6379 BYMI-6919 1-131 -0.05 +/- 0.17; 0.17 -0.13 _0.19;0.19 0.01 +/--0.15;0.15 -0.02 +/- 0.16; 0.16 Mn-54 0.7 +/- 3.2; 3.2 0.2 2.2; 2.2 -0.8_+/- 2.2; 2.2 2.1+/- 2.1; 2.1 Fe-59 9.2_+/- 7.0; 7.1 -8.1 +/- 5.2; 5.3 0.7_+/- 4.1; 4.1 -4.7_+/- 5.5; 5.6 Co-58 0.6 +/- 3.4; 3.4 -1.5 2.3; 2.3 0.2_+/- 2.0; 2.0 -2.0_+/- 2.1; 2.1 Co-60 -0.6 +/- 4.4; 4.4 -1.1 _ 2.4; 2.4 -0.7 +/- 2.5; 2.5 0.1 +/- 2.2; 2.2 Zn-65 1.5 +/- 7.0; 7.0 -1.8+/- 6.3; 6.3 3.5 +/- 4.8; 4.8 1.5 +/- 6.5; 6.5 Zr/Nb-95 2.2_+/- 3.7; 3.7 -4.0 2.4; 2.4 2.0-+/- 2.2; 2.2 -6.6-+/- 2.5; 2.7 Cs-134 1.6+/- 4.0; 4.0 -0.3+/- 2.5; 2.5 0.7_+/- 2.6; 2.6 1.3 +/- 2.8; 2.8 Cs-137 -3.2 +/- 4.1 ; 4.2 -0.2+/- 2.6; 2.6 0.4_+/- 2.5; 2.5 0.1 +/- 2.3; 2.3 Ba/La-140 -3.2 +/- 2.8; 2.9 -2.8 1.3; 1.4 -2.1 +/- 1.9; 1.9 8.8+/- 2.1; 2.4 Date Collected 08-21-01 09-04-01 09-18-01 10-02-01 Lab Code BYMI-7231 BYMI-7706,7 BYMI-8109 BYMI-8566 1-131 -0.07 +/- 0.11; 0.11 -0.02 +/- 0.17; 0.17 0.02 +/- 0.21 ; 0.21 0.04 t 0.14; 0.14 Mn-54 -0.7_+/- 3.6; 3.6 -1.3-+/- 2.4; 2.4 1.9 +/- 2.2; 2.2 1.4+_ 1.4; 1.5 Fe-59 5.0-+/- 8.9; 8.9 1.5-+/- 5.1; 5.1 -1.2_+/- 4.8; 4.8 5.7 -+/-3.3; 3.3 Co-58 1.1 +/- 3.3; 3.3 2.4 +/- 2.2; 2.2 -0.2_+/- 2.1; 2.1 0.8_t 1.4; 1.4 Co-60 1.4_+/- 3.4; 3.4 2.4-+/- 2.6; 2.6 -0.7_+/- 2.4; 2.4 1.6 t 1.7; 1.8 Zn-65 -5.8 +/- 9.7; 9.7 -2.2 +/- 5.7; 5.7 -1.4+/-t 5.4; 5.4 -0.0 + 3.2; 3.2 Zr/Nb-95 -0.9-+/- 3.6; 3.6 4.6 +/- 2.5; 2.6 -0.9 +/- 2.4; 2.4 1.3+/-t 1.6; 1.6 Cs- 134 -6.3 +/- 4.4; 4.5 -0.6 +/- 3.0; 3.0 1.4 +/- 2.3; 2.4 0.1 +/- 1.7; 1.7 Cs- 137 -1.3+/- 4.1; 4.1 -0.5 +/- 2.6; 2.6 0.9 +/- 2.4; 2.4 0.9_+/- 1.6; 1.6 Ba/La-140 3.4-+/- 4.3; 4.3 0.4_+/- 2.8; 2.8 1.1 +/- 2.1; 2.1 -1.2+/- 1.6; 1.6 II -19

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 1 (C) Dennis Herbert Date Collected 10-16-01 10-30-01 11-06-01 12-04-01 Lab Code BYMI-9298 BYMI-9898 BYMI-10162 BYMI-10793 1-131 0.07 +/- 0.20; 0.20 0.08 +/- 0.19; 0.20 -0.05 -t.0.17; 0.17 -0.04 +/- 0.18; 0.18 Mn-54 0.1+/- 1.4; 1.4 -0.2 +/- 1.3; 1.3 1.4 +/- 1.5; 1.5 1.1 +/- 3.9; 3.9 Fe-59 1.1 +/- 2.7; 2.7 -2.8_+/- 2.7; 2.7 -2.9 +/- 3.3; 3.3 0.5_+/- 8.1; 8.1 Co-58 0.7_+/- 1.3; 1.3 -0.4_+/- 1.2; 1.2 -0.8_+/- 1.4; 1.4 0.7 +/- 3.2; 3.2 Co-60 1.6_+/- 1.6; 1.6 0.1_+/- 1.5; 1.5 0.8 +/- 1.7; 1.7 -2.3 +/- 4.6; 4.6 Zn-65 -1.7_+/- 3.4; 3.4 -2.5_+/- 2.9; 3.0 1.0_+/- 4.2; 4.2 -3.2 +/- 9.7; 9.7 Zr/Nb-95 -2.3_+/- 1.4; 1.5 -0.5_+/- 1.4; 1.4 -2.4 +/- 1.6; 1.6 -1.3 +/- 4.0; 4.0 Cs-134 1.1+/- 1.5; 1.5 -0.9+/- 1.5; 1.5 1.2 +/- 1.7; 1.7 0.4_+/- 4.6; 4.6 Cs-137 0.9-+/- 1.6; 1.6 0.2+/- 1.5; 1.5 -1.7_+/- 1.8; 1.9 0.7 +/- 4.4; 4.4 Ba/La-140 -11.9+/- 1.5; 2.2 -3.0_+/- 1.2; 1.3 3.4 +/- 1.5; 1.6 -8.6.+ 3.7; 3.9 111 -20

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 01-02-01 02-06-01 03-06-01 04-03-01 Lab Code BYMI-3 BYMI-889 BYMI-1583 BYMI-2439 1-131 -0.11 +/-_0.14; 0. 14 -0.03 +/- 0.17; 0.17 0.01 +/-_0.11;0.11 0.13 +/- 0.20; 0.21 Mn-54 2.0 +/- 2.4; 2.4 -1.4+/- 2.1; 2.1 0.5_+/- 2.1; 2.1 -0.9-+/- 2.1; 2.1 Fe-59 -1.1 +/- 5.2; 5.2 1.3+/- 3.6; 3.6 3.9_+/- 4.6; 4.6 -1.8-+/- 4.7; 4.7 Co-58 0.6 +/- 2.3; 2.3 -0.6 +/- 1.6; 1.6 -2.0+/- 2.0; 2.0 -0.7++/- 2.1; 2.1 Co-60 -1.4+/- 2.0; 2.0 0.3 +/- 1.9; 1.9 0.6 +/- 2.4; 2.4 0.6-+/- 2.2; 2.2 Zn-65 -2.7 +/- 5.3; 5.3 -0.2_+/- 4.6; 4.6 2.0_+/- 5.1; 5.2 -4.0 +/- 5.0; 5.0 Zr/Nb-95 -1.5-+/- 2.7; 2.7 -2.0_+/- 3.6; 3.6 -1.5-+/- 2.3; 2.3 1.4-+/- 2.1; 2.2 Cs- 134 -0.7 +/- 2.5; 2.5 -0.1 +/- 2.1; 2.1 -2.9 +/- 2.2; 2.2 0.6-+/- 2.4; 2.4 Cs- 137 -0.5_+/- 1.8; 1.8 0.7+/- 1.6; 1.6 1.3 +/- 2.3; 2.3 -1.1 +/- 1.9; 1.9 Ba/La-140 -0.3_+/- 1.9; 1.9 0.9+/- 1.5; 1.5 2.0 +/- 1.5; 1.5 -0.5-+/- 2.1; 2.1 Date Collected 05-01-01 05-15-01 05-29-01 06-12-01 Lab Code BYMI-3413 BYMI-3914 BYMI-4260 BYMI-4864,5 1-131 0.10 +/-0.18;0.18 -0.00 +/- 0.19; 0.19 -0.17 +/- 0.16; 0.16 -0.28 +/- 0.18; 0.19 Mn-54 -0.4 +/- 2.3; 2.3 -0.6 +/- 2.5; 2.5 0.4 +/- 3.4; 3.4 1.2+/- 2.1; 2.1 Fe-59 -2.1 +/- 5.3; 5.3 -0.4_+/- 5.9; 5.9 -0.2+/-t 6.0; 6.0 -0.3 +/- 2.5; 2.5 Co-58 -0.1 +/- 2.3; 2.3 1.8 +/- 2.3; 2.4 -1.4-+/- 3.0; 3.0 -0.8-+/- 2.0; 2.0 Co-60 -0.8 +/- 2.0; 2.0 2.2 +/- 2.5; 2.5 -3.1 +/- 3.1; 3.1 -0.9 +/- 2.3; 2.3 Zn-65 -1.9-+/- 5.9; 5.9 0.4 +/- 6.4; 6.4 1.9 +/- 6.9; 6.9 4.7 +/- 4.5; 4.5 Zr/Nb-95 -0.2 +/- 2.4; 2.4 1.9-+/- 2.6; 2.6 -0.4 +/- 3.4; 3.4 -0.3 +/- 2.0; 2.0 Cs-134 -2.5_+/- 2.4; 2.4 1.2 +/- 2.7; 2.7 1.3 +/- 3.6; 3.6 -0.9 +/- 2.4; 2.4 Cs-137 -0.3 +/- 2.3; 2.3 2.4_+/- 2.8; 2.8 -3.1 +/- 3.3; 3.3 0.4+/- 2.1; 2.1 Ba/La-140 -2.0 +/- 2.5; 2.5 -2.8_+/- 2.2; 2.3 2.2 +/- 2.9; 2.9 -0.6 +/- 1.7; 1.7 III -21

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 06-26-01 07-10-01 07-24-01 08-07-01 Lab Code BYMI-5257 BYMI-5776 BYMI-6380 BYMI-6920 1-131 -0.05 +/- 0.17; 0.17 -0.11 +/-_0.21;0.21 0.03 +/-_0.15;0.15 0.03 +/-_0.15;0.15 Mn-54 0.1 +/- 2.6; 2.6 -1.1 +/- 1.8; 1.8 -1.0+/- 1.8; 1.8 1.8+/- 2.0; 2.0 Fe-59 2.1 +/- 6.5; 6.5 -1.1+/- 4.1; 4.1 0.9 +/- 4.5; 4.5 8.0_+/- 5.3; 5.4 Co-58 -3.2 +/- 2.8; 2.9 -0.9_+/- 1.8; 1.8 -1.1 +/- 1.9; 1.9 -1.6+/- 1.9; 2.0 Co-60 -0.8_+/- 3.4; 3.4 -0.2+/- 2.2; 2.2 -1.0-+/- 2.1; 2.1 -1.4_+/- 2.6; 2.6 Zn-65 -8.2-+/- 6.9; 7.0 -1.0+/- 5.1; 5.1 -5.7 +/- 5.0; 5.1 1.0++/- 5.8; 5.8 Zr/Nb-95 -1.9+/-+2.3; 2.3 2.8-+/- 1.8; 1.8 -1.0+/- 1.8; 1.8 0.5_+/- 2.3; 2.3 Cs-134 1.5 +/- 2.6; 2.6 -0.2-+/- 2.2; 2.2 0.1 +/- 2.2; 2.2 -2.7+/- 2.6; 2.7 Cs-137 0.3-+/- 3.0; 3.0 0.5-+/- 2.0; 2.0 0.1_+/- 1.9; 1.9 0.8_+/- 2.5; 2.5 Ba/La-140 4.5-+/- 2.6; 2.7 -6.9 +/- 2.3; 2.5 -8.3-+/- 1.8; 2.2 5.4-+/- 1.9; 2.1 Date Collected 08-21-01 09-04-01 09-18-01 10-02-01 Lab Code BYMI-7232 BYMI-7708 BYMI-8110 BYMI-8567 1-131 -0.09 +/- 0.12; 0.12 -0.08 +/- 0.14; 0.14 -0.04 +/- 0.17; 0.17 -0.06 +/-_0.13; 0.13 Mn-54 3.9-+/- 4.6; 4.6 0.7_+/- 2.2; 2.2 0.2 +/- 1.9; 1.9 1.7 +/- 1.5; 1.5 Fe-59 -12.8-+/- 10.9; 11.0 2.9+/- 5.1; 5.2 1.6_+/- 3.6; 3.6 3.2_+/- 3.9; 3.9 Co-58 -1.0 +/- 4.3; 4.3 1.3_+/- 2.1; 2.2 -0.1 +/- 1.9; 1.9 -0.5 +/- 1.5; 1.5 Co-60 1.4-+/- 6.2; 6.2 -1.6-+/- 2.2; 2.2 2.3 +/- 2.3; 2.3 -0.8 +/- 2.2; 2.2 Zn-65 -15.4_+/- 12.0; 12.2 -3.4-+/- 5.8; 5.8 -1.1 +/- 4.2; 4.2 -2.0_+/- 4.1; 4.1 Zr/Nb-95 -7.2-+/- 5.6; 5.7 -1.2_+/- 2.4; 2.4 -0.8_+/- 1.9; 1.9 0.2 + 1.7; 1.7 Cs-134 -4.5 +/- 5.2; 5.2 0.6 +/- 2.5; 2.5 -1.0+/- 2.1; 2.1 -1.7+/- 1.9; 1.9 Cs-137 0.8 +/- 4.5; 4.5 1.2 +/- 2.5; 2.5 1.1+/- 1.9; 1.9 1.4_+/- 1.9; 1.9 Ba/La-140 5.1 +/- 5.5; 5.5 -3.6_+/- 2.3; 2.3 -1.0+/- 2.1; 2.1 11.0+/- 1.6; 2.2 11I -22

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

Monthly (November - April)

ODCM 1-131 = 0.5 pCi/L (May - October), 1-131= 5 pCi/L (November - April),

Required LLDs: Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L 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 10-16-01 10-30-01 11-06-01 12-04-01 Lab Code BYMI-9299 BYMI-9899 BYMI-10163 BYMI-10794 1-131 -0.03 +/-_0.18; 0.18 0.04 +/- 0.19; 0.19 0.03 +/- 0.19; 0. 19 -0.24 +/- 0.20; 0.20 Mn-54 -2.4+/- 3.0; 3.0 -1.3_+/- 2.9; 2.9 0.5 +/- 0.9; 0.9 0.3-+/- 3.5; 3.5 Fe-59 6.0 +/- 5.8; 5.8 0.5++/- 6.2; 6.2 -2.5 +/- 2.0; 2.1 -3.2-+6.8; 6.9 Co-58 1.2 +/- 2.4; 2.5 2.5_+/- 2.7; 2.8 -0.2_+/- 0.8; 0.8 1.1-+/-3.1;3.1 Co-60 0.2 +/- 3.2; 3.2 -1.9+/- 3.0; 3.0 -0.3 +/- 0.9; 0.9 0.4 + 3.5; 3.5 Zn-65 -2.6 +/- 6.3; 6.3 -3.0 +/- 5.3; 5.3 -0.5 +/- 2.2; 2.2 2.4_+/- 8.4; 8.4 Zr/Nb-95 1.7 +/- 2.7; 2.7 -4.0+/- 4.6; 4.6 -1.1 +/- 0.8; 0.9 -0.2_+/- 3.0; 3.0 Cs- 134 -1.0_+/- 3.0; 3.0 -0.6_+/- 3.1; 3.1 0.1 +/- 1.0; 1.0 0.2 + 4.3; 4.3 Cs-137 -0.8-+/- 3.2; 3.2 -1.7-+/- 2.9; 2.9 0.8+/- 1.0; 1.0 1.6_+/- 3.6; 3.6 Ba/La-140 11.0_+/- 2.8; 3.1 -1.1 +/- 2.1; 2.1 4.3-+/- 0.8; 1.0 -4.8_+/- 4.1; 4.1 II -23

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-137 = 0.1 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10-2 pCi/g wet weight Sample Description and Concentration BY-29 (C) Byron. Upstream Date Collected 05-23-01 05-23-01 05-23-01 05-23-01 Lab Code BYF-4104 BYF-4105 BYF-4106 BYF-4107 Type Carp Silver Redhorse Golden Redhorse Freshwater Drum Mn-54 0.2_+/- 0.9; 0.9 -0.1 +/- 1.0; 1.0 -0.0 +/- 0.8; 0.8 0.2 + 1.0; 1.0 Fe-59 0.3 +/- 2.3; 2.3 1.5_+/- 1.8; 1.8 -1.1 +/- 1.8; 1.8 -1.3 +/- 2.3; 2.3 Co-58 -0.4 +/- 0.7; 0.7 0.4+/- 0.8; 0.8 0.1 +/- 0.7; 0.7 0.3 +/- 0.9; 0.9 Co-60 -0.1 +/- 1.0; 1.0 0.8-+/- 1.0; 1.0 -0.6 +/- 0.8; 0.8 1.0 +/- 1.3; 1.3 Zn-65 0.3 +/- 2.0; 2.0 1.3 +/- 2.3; 2.3 -0.3-+/- 1.7; 1.7 -1.8 +/- 3.1; 3.1 Zr/Nb-95 0.5 +/- 0.8; 0.8 -0.5-+/- 0.9; 0.9 -0.5 +/- 0.7; 0.7 0.9 +/- 1.0; 1.0 Cs-134 0.2 +/- 0.9; 0.9 0.1 +/- 1.0; 1.0 -0.3 +/- 0.9; 0.9 0.7_+/- 1.0; 1.0 Cs-137 -0.1 +/- 0.6; 0.6 -0.1 +/- 0.9; 0.9 -0.1 +/- 0.8; 0.8 0.6 +/- 1.1; 1.1 Ba/La-140 1.2 +/- 0.6; 0.6 -0.3_+/- 1.2; 1.2 1.0 +/- 0.8; 0.9 -3.6_+/- 1.4; 1.5 Date Collected 05-23-01 10-18-01 10-18-01 10-18-01 Lab Code BYF-4108 BYF-9391 BYF-9392 BYF-9393 Type Channel Catfish Freshwater Drum Carp Golden Redhorse Mn-54 0.4 +/- 0.8; 0.8 -0.1 +/- 0.9; 0.9 0.2_+/- 0.8; 0.8 -0.0 +/- 0.6; 0.6 Fe-59 -0.1 +/- 1.7; 1.7 1.8 +/- 2.2; 2.3 -1.7+/- 1.9; 1.9 0.2_+/- 1.8; 1.8 Co-58 0.1 +/- 0.7; 0.7 -0.4_+/- 0.8; 0.8 -0.2_+/- 0.8; 0.8 0.5 +/- 0.7; 0.7 Co-60 -0.7+/- 1.1; 1.1 -0.0 +/- 1.0; 1.0 -0.5_+/- 0.9; 0.9 1.0 +/- 0.7; 0.8 Zn-65 -1.6_+/- 1.5; 1.5 2.3 +/- 2.3; 2.3 -1.3 +/- 2.2; 2.2 -0.6 +/- 1.9; 1.9 Zr/Nb-95 -1.2 +/- 0.9; 0.9 0.6 +/- 0.9; 0.9 -0.7_+/- 0.8; 0.8 -0.6 +/- 0.7; 0.7 Cs-134 0.2 +/- 0.8; 0.8 -0.3_+/- 1.0; 1.0 0.3 +/- 0.9; 0.9 -0.4_+/- 0.7; 0.7 Cs-137 0.4_+/- 0.7; 0.7 0.1 +/- 0.8; 0.8 0.2 +/- 0.9; 0.9 0.1 +/- 0.6; 0.6 Ba/La-140 0.3_+/- 1.1; 1.1 -0.3_+/- 0.9; 0.9 0.5 +/- 1.0; 1.0 -0.8 +/- 0.6; 0.6 111 -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-137 = 0.1 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10-2 pCi/g wet weight Sample Description and Concentration BY-29 (C) Byron. I Jnqstream Date Collected 10-18-01 Lab Code BYF-9394 Type River Carpsucker Mn-54 -0.2 +/- 0.9; 0.9 Fe-59 0.4 +/- 2.1; 2.1 Co-58 0.2 +/- 0.8; 0.8 Co-60 0.7+/- 1.0; 1.0 Zn-65 0.1 +/- 2.0; 2.0 Zr/Nb-95 -1.6 +/- 0.8; 0.8 Cs-134 0.7_+/- 0.9; 0.9 Cs-137 -0.2_+/- 0.9; 0.9 Ba/La-140 1.9_+/- 1.0; 1.1 III -25

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-137 = 0.1 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10.2 pCi/g wet weight Sample Description and Concentration BY-31 Byron, Discharge Date Collected 05-23-01 05-23-01 05-23-01 05-23-01 Lab Code BYF-4109 BYF-4110 BYF-4111 BYF-4112 Type Channel Catfish Carp Bigmouth Buffalo Silver Redhorse Mn-54 0.2 +/- 0.7; 0.7 0.5_+/- 0.8; 0.8 0.1 +/- 0.7; 0.7 -0.1 +/- 0.8; 0.8 Fe-59 -0.2 +/- 1.7; 1.7 1.2++/- 1.9; 1.9 -0.1 +/- 1.7; 1.7 -1.0 +/- 1.8; 1.8 Co-58 0.0-+/- 0.8; 0.8 0.8 +/- 0.9; 0.9 0.1 +/- 0.7; 0.7 -0.6 +/- 0.7; 0.7 Co-60 1.1 +/- 0.9; 0.9 0.1 +/- 1.1; 1.1 0.5 +/- 0.7; 0.8 -0.1 + 1.1; 1.1 Zn-65 0.2_+/- 1.9; 1.9 0.1 +/- 1.9; 1.9 -0.6 - 2.2; 2.2 0.3+/- 1.8; 1.8 Zr/Nb-95 -0.0 +/- 0.7; 0.7 -0.4 +/- 0.9; 0.9 0.7+/- 0.6; 0.6 0.9 +/- 0.7; 0.7 Cs-134 0.4 +/- 0.8; 0.8 -0.5 +/- 1.2; 1.2 0.1 +/- 0.7; 0.7 0.4 +/- 0.8; 0.8 Cs-137 0.3 +/- 0.7; 0.7 0.1 +/- 0.8; 0.8 -0.4 +/- 0.8; 0.8 0.0 _ 0.7; 0.7 Ba/La-140 0.7 +/- 0.4; 0.4 -1.5 +/- 1.0; 1.0 0.2 +/- 0.7; 0.7 -0.8 +/- 0.8; 0.9 Date Collected 05-23-01 10-18-01 10-18-01 10-18-01 Lab Code BYF-4113 BYF-9395 BYF-9396 BYF-9397 Type River Carpsucker Bigmouth Buffalo Carp River Carpsucker Mn-54 0.2 +/- 0.7; 0.7 0.8_+/- 0.6; 0.6 0.7+/- 0.8; 0.8 0.1 +/- 0.8; 0.8 Fe-59 0.7_+/- 1.4; 1.4 1.0 +/- 1.6; 1.6 0.9 +/- 2.2; 2.2 -0.3 +/- 2.0; 2.0 Co-58 0.1 +/- 0.6; 0.6 0.5 +/- 0.5; 0.5 -0.2_+/- 1.0; 1.0 0.1 +/- 0.6; 0.6 Co-60 -0.1 +/- 0.8; 0.8 -0.7_+/- 0.7; 0.7 0.2 +/- 1.2; 1.2 -0.8 +/- 0.9; 0.9 Zn-65 -0.8 +/- 2.0; 2.0 0.7+/- 1.6; 1.6 -0.3 +/- 2.4; 2.4 1.7 + 1.7; 1.8 Zr/Nb-95 -0.8 +/- 0.7; 0.7 0.5 +/- 0.6; 0.6 -2.5 +/- 1.7; 1.7 0.3 +/- 0.7; 0.7 Cs-134 0.6 +/- 0.7; 0.7 0.2 +/- 0.7; 0.7 0.6_+/- 1.0; 1.0 0.3 +/- 0.8; 0.8 Cs-137 0.6 +/- 0.6; 0.6 -0.1 +/- 0.7; 0.7 -0.4 +/- 0.8; 0.8 -0.3 +/- 0.9; 0.9 Ba/La-140 0.6 +/- 0.6; 0.6 0.3 +/- 0.6; 0.6 -3.9_+/- 1.3; 1.4 -3.2_+/- 1.0; 1.0 mI-26

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-137 = 0.1 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10.2 pCi/g wet weight Sample Description and Concentration BY-31 Byron, Discharge Date Collected 10-18-01 10-18-01 Lab Code BYF-9398 BYF-9399 Type Smallmouth Buffalo Smallmouth Bass MIn-54 -0.3 +/- 0.8; 0.8 0.5 +/- 0.7; 0.7 Fe-59 -0.8 +/- 2.1; 2.1 -0.5 +/- 1.8; 1.8 Co-58 -0.1 +/- 0.8; 0.8 0.2 +/- 0.7; 0.7 Co-60 0.1 +/- 1.0; 1.0 0.3 +/- 0.9; 0.9 Zn-65 -2.5 +/- 2.4; 2.4 0.6 +/- 2.0; 2.0 Zr/Nb-95 0.3 +/- 0.8; 0.8 -1.9 +/- 0.7; 0.7 Cs-134 -0.1 +/- 0.9; 0.9 -0.8 +/- 1.0; 1.0 Cs-137 0.7_+/- 1.0; 1.0 -0.2 +/- 0.7; 0.7 Ba/La-140 0.3 +/- 0.7; 0.7 -0.8 +/- 0.7; 0.7 IMI -27

BYRON Table 5. Bottom Sediments Collection: Semiannually ODCM Required LLDs: Cs-134 = 0.15, Cs-137 = 0.18 pCi/g dry weight Other LLDs: Mn-54 = 0.15; Fe-59 = 0.60; Co-58,60 = 0.10; Zn-65 = 0.60; Zr/Nb-95 = 0.20; Ba/La = 0.60 Units: 10-2 pCi/g dry weight Sample Description and Concentration BY-12 Orepon Pool of Rock River Date Collected 05-22-01 10-09-01 Lab Code BYBS-4118 BYBS-8999 Mn-54 -0.1 +/- 0.6; 0.6 0.4_+/- 0.8; 0.8 Fe-59 -0.6 +/- 1.2; 1.2 -0.1 +/- 2.0; 2.0 Co-58 -0.3 +/- 0.5; 0.5 0.2+/- 0.8; 0.8 Co-60 0.1 +/- 0.6; 0.6 0.7_+/- 1.1; 1.1 Zn-65 -0.3 +/- 1.3; 1.3 -1.5 +/- 2.2; 2.2 Zr/Nb-95 -1.1 +/- 0.6; 0.7 0.6 +/- 0.8; 0.8 Cs-134 0.9 +/- 0.8; 0.8 0.9_+/- 1.0; 1.0 Cs-137 0.9 +/- 0.6; 0.7 1.2 +/- 0.9; 0.9 Ba/La-140 -4.9 +/- 0.7; 0.9 -18.7+/- 1.1; 2.8 BY-34 Rock River, Downstream Date Collected 05-22-01 10-09-01 Lab Code BYBS-4119 BYBS-9000 Mn-54 0.2 +/- 0.9; 0.9 0.4 +/- 0.9; 0.9 Fe-59 2.0_+/- 2.1; 2.1 1.1 +/- 1.8; 1.8 Co-58 0.3 +/- 0.7; 0.7 0.3 +/- 0.6; 0.6 Co-60 0.1 +/- 1.1; 1.1 0.5 +/- 0.8; 0.8 Zn-65 -2.4_+/- 2.8; 2.8 1.7_+/- 1.5; 1.5 Zr/Nb-95 -1.1 +/- 0.8; 0.9 0.0 +/- 0.8; 0.8 Cs-134 0.5-+/- 0.9; 0.9 0.5 +/- 0.9; 0.9 Cs-137 0.2 +/- 0.9; 0.9 0.4-+/- 0.9; 0.9 Ba/La-140 -3.0_+/- 1.1; 1.2 3.7+/- 1.1; 1.2 III - 28

BYRON Table 6. Vegetation Collection: Annually ODCM Required LLDs: 1-131 = 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: 10-2 pCi/g wet weight Sample Description and Concentration BY-Control 14784 Beralund Road Date Collected 07-24-01 07-24-01 Lab Code BYVE-6391 BYVE-6392 Type Rhubarb leaves Beets Mn-54 0.4 +/- 0.8; 0.8 -0.3-+/- 0.7; 0.7 Fe-59 -0.2 +/- 2.1; 2.1 -0.1 +/- 1.3; 1.3 Co-58 -0.8 +/- 0.9; 0.9 0.6 +/- 0.7; 0.7 Co-60 -0.1 +/- 0.9; 0.9 -0.6 +/- 0.8; 0.8 Zn-65 -0.9 +/- 2.5; 2.5 -0.1 +/- 1.9; 1.9 Zr/Nb-95 -0.3 + 0.8; 0.8 -0.9 +/- 0.7; 0.7 1-131 -0.4 +/- 0.6; 0.6 -0.1 +/- 0.6; 0.6 Cs-134 0.8 +/- 1.0; 1.0 0.9 +/- 0.7; 0.7 Cs-137 0.3 +/- 0.8; 0.8 -0.3 +/- 0.6; 0.6 Ba/La-140 -0.8+/- 1.0; 1.0 -0.6 +/- 0.5; 0.5 BY-Ouad 1 7083 N. River Road Date Collected 07-24-01 07-24-01 Lab Code BYVE-6394 BYVE-6393 Type Cabbage Potatoes Mn-54 1.1 +/- 0.8; 0.8 0.5 +/- 0.7; 0.7 Fe-59 -1.4_+/- 1.4; 1.4 -0.1 +/- 2.0; 2.0 Co-58 0.0 +/- 0.7; 0.7 0.5 +/- 0.7; 0.7 Co-60 -0.7+/- 1.0; 1.0 -0.3 +/- 1.0; 1.0 Zn-65 0.8_+/- 1.8; 1.8 0.4+/- 2.1; 2.1 Zr/Nb-95 -1.0 +/- 0.7; 0.7 -0.8 +/- 0.7; 0.7 1-131 -1.0 +/- 0.8; 0.8 0.2 +/- 0.6; 0.6 Cs-134 0.1 +/- 0.9; 0.9 -0.4++/- 0.9; 0.9 Cs-137 0.7 +/- 0.8; 0.8 1.0 +/- 0.9; 0.9 Ba/La-140 -0.8_+/- 1.0; 1.0 0.1 +/- 0.9; 0.9 11 -29

BYRON Table 6. Vegetation Collection: Annually ODCM Required LLDs: 1-131 = 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: 10-2 pCi/g wet weight Sample Description and Concentration BY-Ouad 2 5671 East Brick Road Date Collected 07-31-01 07-31-01 Lab Code BYVE-6710 BYVE-6711 Type Turnips Cabbage Mn-54 0.4_+/- 0.6; 0.6 -0.8 +/- 0.6; 0.7 Fe-59 0.2 + 1.4; 1.4 -0.6 +/- 1.3; 1.3 Co-58 -0.2_+/- 0.7; 0.7 -0.4 +/- 0.6; 0.6 Co-60 0.7 +/- 0.7; 0.7 0.1 +/- 0.7; 0.7 Zn-65 -0.5_+/- 1.6; 1.6 0.8 +/- 1.3; 1.3 Zr/Nb-95 0.3 +/- 0.6; 0.6 -0.3 +/- 0.6; 0.6 1-131 0.1 +/- 0.5; 0.5 0.7 +/- 0.6; 0.6 Cs-134 0.1 +/- 0.8; 0.8 0.2 +/- 0.7; 0.7 Cs-137 0.5 +/- 0.7; 0.7 -0.4 +/- 0.7; 0.7 Ba/La-140 0.3 +/- 0.6; 0.6 0.4 +/- 0.7; 0.7 BY-Ouad 3 1417 Brick Road Date Collected 07-31-01 07-31-01 Lab Code BYVE-6713 BYVE-6712 Type Beet greens Beets Mn-54 -0.1 +/- 1.0; 1.0 -0.1 +/- 1.1; 1.1 Fe-59 0.2 +/- 2.5; 2.5 2.6 +/- 3.3; 3.4 Co-58 0.5 +/- 0.9; 0.9 0.9+/- 1.1; 1.1 Co-60 -0.2 +/- 1.2; 1.2 0.2+/- 1.2; 1.2 Zn-65 -0.5 +/- 2.8; 2.8 1.4 3.6; 3.6 Zr/Nb-95 -0.8_+/- 1.0; 1.0 -0.5 +/- 2.3; 2.3 1-131 -0.9 +/- 0.7; 0.7 -0.9 +/- 0.9; 0.9 Cs-134 0.2 +/- 1.0; 1.0 -0.0_+/- 1.4; 1.4 Cs-137 0.7+/- 1.1; 1.1 0.1 +/- 1.1; 1.1 Ba/La-140 0.1 +/- 0.9; 0.9 0.5 +/- 1.3; 1.3 I11-30

BYRON Table 6. Vegetation Collection: Annually ODCM Required LLDs: 1-131 = 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: 10-2 pCi/g wet weight Sample Description and Concentration BY-Ouad 4 6170 Razorville Road Date Collected 07-31-01 07-31-01 Lab Code BYVE-6714 BYVE-6715 Type Carrots Potatoes Mn-54 0.7_+/- 2.1; 2.1 0.0 +/- 0.8; 0.8 Fe-59 -1.9 +/- 5.2; 5.2 -0.3 +/- 1.6; 1.6 Co-58 -0.7_+/- 2.1; 2.1 -0.4_+/- 0.8; 0.8 Co-60 1.4_+/- 3.6; 3.6 -0.1 +/- 1.0; 1.0 Zn-65 -5.5 +/- 6.6; 6.6 2.3 +/- 2.0; 2.1 Zr/Nb-95 -1.0 +/- 2.1; 2.1 -0.1 +/- 0.8; 0.8 1-131 -2.1 +/- 1.5; 1.5 0.9 +/- 0.6; 0.6 Cs-134 -1.0 +/- 2.4; 2.4 -0.0 +/- 0.9; 0.9 Cs-137 0.7 +/- 2.4; 2.4 0.3 +/- 0.8; 0.8 Ba/La-140 -0.1 +/- 3.5; 3.5 -0.9 +/- 0.9; 0.9 Date Collected 07-31-01 Lab Code BYVE-6716 Type Cauliflower Mn-54 -0.1 +/- 1.5; 1.5 Fe-59 -1.3 +/- 2.9; 2.9 Co-58 0.4-+1.2; 1.2 Co-60 -0.1 +/- 1.6; 1.6 Zn-65 -0.5 +/- 3.0; 3.0 Zr/Nb-95 0.4-+/- 1.2; 1.2 1-131 -0.1 +/- 1.0; 1.0 Cs-134 0.6-+/- 1.3; 1.3 Cs-137 0.6_+/- 1.2; 1.2 Ba/La-140 0.2_+/- 1.5; 1.5 111 -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, Required LLDs: Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-12 Oregon Pool of Rock River. Downstream 2001 Collection January February March Period Lab Code BYSW-1162 BYSW-1706 BYSW-2324 Gross Beta 1.7 +/- 1.2; 1.2 3.1 +/- 1.6; 1.6 3.5 +/- 1.6; 1.7 Mn-54 0.9 +/- 0.9; 0.9 0.4+/- 1.1; 1.1 0.2 +/- 1.5; 1.5 Fe-59 1.1 +/- 1.8; 1.8 -0.2__ 2.2; 2.2 0.2 +/- 2.7; 2.7 Co-58 0.4_+/- 1.0; 1.0 0.0-t 1.1; 1.1 0.8_+/- 1.6; 1.6 Co-60 1.2+/- 1.2; 1.2 -0.1 +/- 1.2; 1.2 -1.6+/- 1.8; 1.9 Zn-65 0.9 1.9; 1.9 0.3 +/- 2.3; 2.3 0.4_+/- 2.1; 2.1 Zr/Nb-95 0.5+/- 1.0; 1.0 0.1 +/- 2.7; 2.7 1.1+/- 1.8; 1.8 Cs-134 -0.8+/- 1.1; 1.1 -0.5 t 1.3; 1.3 0.9 +/- 1.7; 1.7 Cs-137 -0.3 +/- 0.9; 0.9 -0.8t 1.1; 1.2 -0.1 +/- 1.7; 1.7 Ba/La-140 -0.8+/- 1.3; 1.3 0.5__ 1.0; 1.0 1.2+/- 1.9; 1.9 2001 Collection April May June Period Lab Code BYSW-3756 BYSW-4579 BYSW-5550 Gross Beta 3.2 +/- 1.5; 1.6 3.3 +/- 1.1 ; 1.2 3.3 . 1.4; 1.5 Mn-54 -0.1 +/- 1.2; 1.2 -0.3 +/- 3.5; 3.5 0.3+/-t 1.7; 1.7 Fe-59 -5.1 +/- 2.4; 2.5 2.3 -t 5.7; 5.7 0.7 +/- 4.5; 4.5 Co-58 -0.9+/- 1.2; 1.2 0.9+/- 3.1; 3.1 1.7+/- 1.5; 1.5 Co-60 -0.1+/- 1.1; 1.1 -1.3_+/- 3.6; 3.6 -0.6 +/- 1.7; 1.7 Zn-65 1.9+/- 2.6; 2.6 1.8 +/- 4.7; 4.8 -0.2_+/- 2.9; 2.9 Zr/Nb-95 1.0+/- 1.3; 1.3 -2.2 +/- 3.2; 3.2 -2.6 +/- 1.5; 1.6 Cs-134 0.8+/- 1.4; 1.4 2.0+/- 3.6; 3.6 -0.6 +/- 1.4; 1.4 Cs- 137 0.7 +/- 1.3; 1.3 2.1 +/- 3.4; 3.4 1.8_ 1.9; 2.0 Ba/La-140 0.6+/- 1.3; 1.3 6.8+/- 3.2; 3.3 -8.4+/- 2.4; 2.7 11 -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, Required LLDs: Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-12 Oregon Pool of Rock River. Downstream 2001 Collection July August September Period Lab Code BYSW-6818 BYSW-7439 BYSW-8668 Gross Beta 3.1 +/-_0.8; 1.0 3.1 +/- 1.2; 1.3 4.1 +/- 1.7; 1.8 Mn-54 -0.2_+/- 0.7; 0.7 -0.7-+/- 1.6; 1.6 -0.1 +/- 0.9; 0.9 Fe-59 -0.9 +/- 1.5; 1.5 -0.7 +/- 2.7; 2.7 -1.2+/- 1.8; 1.8 Co-58 -0.2_+/- 0.7; 0.7 -1.4+/- 1.5; 1.5 0.3 +/- 0.9; 0.9 Co-60 -0.1 +/- 0.7; 0.7 -0.7 +/- 1.7; 1.7 0.8_+/- 1.0; 1.0 Zn-65 -5.5 +/- 1.9; 2.1 -3.0+/- 3.0; 3.0 -1.7+/- 2.1; 2.1 Zr/Nb-95 -2.4 +/- 1.6; 1.6 1.7-+/- 1.4; 1.4 1.2 +/- 0.9; 1.0 Cs-134 0.3 +/- 0.8; 0.8 1.2+/- 1.7; 1.7 -0.2 +/- 1.0; 1.0 Cs-137 -0.4++/- 0.8; 0.8 0.2-+/- 1.6; 1.6 -1.2+/- 1.1; 1.1 Ba/La-140 3.3-+/- 1.0; 1.1 0.4 +/- 1.8; 1.8 1.0+/- 1.0; 1.1 2001 Collection October November December Period Lab Code BYSW-10073 BYSW-10944 BYSW-1 1451 Gross Beta 3.7 +/- 1.3; 1.4 3.4 t 1.1; 1.2 3.9 +/- 1.2; 1.4 Mn-54 -0.4_+/- 0.6; 0.6 -1.1 +/- 2.9; 2.9 1.5 +/- 3.4; 3.4 Fe-59 -0.4 +/- 1.2; 1.2 6.6 +/- 5.7; 5.7 -9.3 +/- 6.4; 6.5 Co-58 0.1 +/- 0.6; 0.6 -2.1 +/- 2.8; 2.8 -1.6_+/- 3.3; 3.3 Co-60 -0.0++/- 0.6; 0.6 -1.2-+/- 3.7; 3.7 -1.8_+/- 3.4; 3.4 Zn-65 -1.6+/- 1.4; 1.4 -4.6-+/- 5.8; 5.8 -1.9_+/- 7.2; 7.2 Zr/Nb-95 -1.1 +/- 0.6; 0.7 4.0 +/- 2.9; 2.9 2.8_+/- 2.8; 2.8 Cs-134 0.8 +/- 0.7; 0.7 1.8_+/- 3.3; 3.3 1.4 +/- 4.0; 4.0 Cs- 137 0.3 +/- 0.7; 0.7 -0.1 +/- 3.0; 3.0 -1.6_+/- 3. 1; 3.1 Ba/La-140 2.8 +/- 0.7; 0.8 -4.0 +/- 2.8; 2.9 -3.2 +/- 4.2; 4.2 111-33

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, Required LLDs: Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-29 (C) Byron. Up2stream 2001 Collection January February March Period Lab Code NS a BYSW-1707 b BYSW-2325 Gross Beta 2.6 +/- 1.4; 1.5 2.0 +/- 1.4; 1.4 Mn-54 0.7-+/- 1.0; 1.0 1.6 +/- 1.7; 1.7 Fe-59 2.5-+/- 1.6; 1.7 -1.1 +/- 3.6; 3.6 Co-58 -0.6-+/- 1.0; 1.0 -0.7-+/- 1.7; 1.7 Co-60 0.2 +/- 0.9; 0.9 1.2-+/- 2.1; 2.1 Zn-65 0.5 +/- 2.0; 2.0 2.8-+/- 3.4; 3.5 Zr/Nb-95 -0.3 +/- 0.9; 0.9 -1.8-+/- 3.1; 3.1 Cs-134 -0.8 +/- 1.2; 1.2 1.7 +/- 1.9; 1.9 Cs-137 -0.7++/- 1.0; 1.0 -0.3-+/- 1.7; 1.7 Ba/La-140 -0.9 +/- 1.4; 1.4 2.5-+/- 2.1; 2.1 2001 Collection April May June Period Lab Code BYSW-3757 BYSW-4580 BYSW-5551 Gross Beta 2.3 +/- 1.5; 1.5 2.5 +/- 1.1 ; 1.2 2.7 +/- 1.3; 1.4 Mn-54 0.5-+/- 1.1; 1.1 1.8-+/- 3.1; 3.1 0.6 +/- 1.7; 1.7 Fe-59 -1.5 +/- 1.7; 1.7 -3.8 +/- 5.7; 5.7 -1.1 +/- 3.8; 3.8 Co-58 0.1 +/- 1.0; 1.0 1.8-+/- 2.7; 2.7 1.3 +/-+1.5; 1.5 Co-60 -0.5-+/- 1.2; 1.2 5.2-+/- 3.8; 3.9 -0.1 +/- 1.6; 1.6 Zn-65 1.1 +/- 1.9; 2.0 2.4-+/- 5.0; 5.0 1.8-+/- 3.2; 3.2 Zr/Nb-95 0.0 +/- 1.0; 1.0 -3.3 +/- 3.3; 3.3 -0.1 +/- 1.6; 1.6 Cs-134 0.9-+/- 1.0; 1.0 1.4 +/- 3.3; 3.3 0.4+/- 1.8; 1.8 Cs- 137 0.1-+1.1; 1.1 0.3 +/- 2.7; 2.7 0.6 +/- 1.9; 1.9 Ba/La-140 0.4+ 1.2; 1.2 -5.9 +/- 3.9; 4.0 2.6_+/- 1.8; 1.8 a "NS" = No sample; water frozen.

b Results reflect two samples for month; water frozen on 02-06-01 and 02-13-01.

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, Required LLDs: Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCiIL Units: pCi/L Sample Description and Concentration BY-29 (C) Byron. -Upstream 2001 Collection July August September Period Lab Code BYSW-6819 BYSW-7440 BYSW-8669 3.3 +/- 0.9; 1.0 4.3 +/- 1.2; 1.3 3.4 +/- 1.5; 1.6 Gross Beta 1.1 0.5 +/- 1.3; 1.3 -0.7 +/- 0.8; 0.8 Mn-54 -0.3-+/- 1.1; 2.1 -3.1 +/- 2.6; 2.7 0.5 +/- 1.5; 1.5 Fe-59 -1.9+/- 2.1; 0.6+/- 1.1; 1.1 0.8 +/- 1.3; 1.3 0.5_+/- 0.8; 0.8 Co-58 1.4 -0.3 +/- 1.5; 1.5 -0.2_+/- 0.8; 0.8 Co-60 0.8+/- 1.4;

-0.1+/- 2.1; 2.1 1.2 +/- 2.7; 2.7 -0.3 +/- 1.5; 1.5 Zn-65

-1.0+/- 1.3; 1.3 0.4+/- 1.3; 1.3 -0.7_+/- 0.8; 0.8 Zr/Nb-95 0.2 +/- 1.4; 1.4 1.9 +/- 1.7; 1.7 0.5 +/- 0.9; 0.9 Cs-134 0.9 +/- 1.4; 1.4 -0.8-+/- 1.6; 1.6 -0.3-+/- 1.0; 1.0 Cs-137 1.4 0.1 +/- 1.5; 1.5 -2.5 +/- 1.0; 1.1 Ba/La-140 -2.2 +/- 1.3; 2001 October November December Collection Period BYSW-10945 BYSW-11452 Lab Code BYSW-10074 4.8 _ 1.4; 1.6 5.8 +/- 1.3; 1.6 2.2 +/- 1.0; 1.1 Gross Beta 1.5+/- 3.0; 3.0 -2.0_+/- 2.8; 2.9 Mn-54 -0.1 1.3; 1.3 2.2 +/- 5.5; 5.5 -5.1 +/- 5.2; 5.3 Fe-59 -1.7+/- 2.2; 2.2 4.4 +/- 2.9; 3.0 -2.1 +/- 2.8; 2.8 Co-58 -0.3+/- 1.1; 1.1 0.7 +/- 3.4; 3.4 2.0 +/- 2.8; 2.8 Co-60 -1.0+/- 1.4; 1.4

-3.5 +/- 4.8; 4.9 -2.3 +/- 5.3; 5.3 Zn-65 -1.1 +/- 2.3; 2.3

-1.1 +/- 2.9; 2.9 2.7_+/- 2.9; 2.9 Zr/Nb-95 -2.4 +/- 1.3; 1.4

-2.5 +/- 3.1 ; 3.2 -0.7_+/- 3.2; 3.2 Cs-134 0.5 +/- 1.3; 1.3 0.4 +/- 3.0; 3.0 0.8++/- 3.7; 3.7 Cs-137 -0.4 +/- 1.4; 1.4

-1.8_+/- 3.6; 3.6 -2.3 +/- 3.8; 3.8 Ba/La-140 -7.4_+/- 1.6; 1.9 I1 -35

BYRON Table 7. Surface Water Collection: Quarterly composites of weekly collections ODCM Required LLD: H-3 = 200 pCi/L Units: pCi/L 2001 Sample Description and Concentration Collection Period Lab Code Tritium BY-12 Oregon Pool of Rock River, Downstream 1st Quarter BYSW- 2327 3,618 +/- 183; 525 2nd Quarter BYSW- 5552 1,708 + 133; 267 3rd Quarter BYSW- 8670 1,828 +/- 142; 286 4th Quarter BYSW- 11457 2,337 +/- 156; 354 BY-29 (C) Byron, Upstream 1st Quarter BYSW- 2326 82 +/- 84; 85 2nd Quarter BYSW- 5553 36 +/- 76; 76 3rd Quarter BYSW- 8671 21 +/- 81; 82 4th Quarter BYSW- 11458 8 +/- 82; 82 II -36

BYRON Table 8. Well Water Collection: Quarterly ODCM H-3 = 200, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Required LLDs: Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La- 140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-14 ComEd Offsite Well Date Collected 01-09-01 04-10-01 08-21-01 10-09-01 Lab Code BYWW-233 BYWW-2671 BYWW-7243 a BYWW-9021 b H-3 -50+/- 78; 79 75 +/- 83; 84 77 +/- 77; 77 113+/- 82;83 Mn-54 1.4_+/- 1.6; 1.6 -2.2_+/- 1.8; 1.9 1.9+/- 4.2; 4.2 0.4 +/- 1.2; 1.2 Fe-59 -0.6_+/- 3.8; 3.8 1.1 +/- 3.3; 3.3 1.5 +/- 7.5; 7.5 -3.1+/- 3.1; 3.1 Co-58 -1.5_+/- 1.6; 1.6 1.2+/- 1.8; 1.8 -0.2_+/- 3.8; 3.8 -0.2 +/- 1.5; 1.5 Co-60 0.3_+/- 1.7; 1.7 2.1_+/- 2.0; 2.1 3.4_+/- 3.8; 3.8 -0.9+/- 2.1; 2.1 Zn-65 -2.0+/-t 3.5; 3.5 0.4 +/- 2.9; 2.9 -1.5_+/- 8.7; 8.7 1.5 +/- 3.0; 3.0 Zr/Nb-95 1.2_+/- 1.6; 1.6 -0.8 +/- 1.7; 1.7 -0.5 +/- 3.6; 3.6 -0.8_+/- 1.6; 1.6 Cs- 134 0.2 +/- 1.7; 1.7 0.7_+/- 2.2; 2.2 -0.5_+/- 4.3; 4.3 1.0 +/- 1.5; 1.5 Cs- 137 -0.6 +/- 1.7; 1.7 0.5_+/- 2.0; 2.0 -0.1 +/- 3.9; 3.9 -0.5_+/- 1.6; 1.6 Ba/La-140 -1.1 +/- 1.7; 1.7 3.3_+/- 1.4; 1.5 -4.8 +/- 5.3; 5.3 -1.1 +/- 1.8; 1.8 BY-18 McCoy Farmstead Date Collected 01-09-01 04-10-01 07-10-01 10-09-01 Lab Code BYWW-234 BYWW-2672 BYWW-5907 BYWW-9022 H-3 9 +/- 81; 81 58 +/- 83; 83 -2 +/- 73; 73 138 +/- 83; 85 Mn-54 0.7-+/- 2.6; 2.6 -0.6 +/- 3.8; 3.8 0.1_+/- 1.3; 1.3 1.5++/- 1.3; 1.3 Fe-59 -0.4_+/- 4.2; 4.2 -1.6-+/- 6.4; 6.4 1.1 +/- 2.1; 2.1 3.2 +/- 2.7; 2.8 Co-58 1.3-+/- 2.5; 2.6 2.4 +/- 3.3; 3.3 -2.0-+/- 1.2; 1.3 1.2-+/- 1.6; 1.6 Co-60 1.9+/- 2.7; 2.7 1.6 +/- 3.2; 3.2 0.1-+/- 1.4; 1.4 -0.8 +/- 1.5; 1.5 Zn-65 1.9 +/- 4.7; 4.7 0.6-+/- 6.8; 6.8 3.0 +/- 2.8; 2.8 0.9-+/- 3.2; 3.2 Zr/Nb-95 0.8 +/- 2.5; 2.6 -1.1 +/- 3.3; 3.3 -1.0+/- 1.2; 1.2 -1.5-+/- 1.7; 1.7 Cs-134 1.2+/-t 3.0; 3.0 5.8_+/- 3.6; 3.7 -1.9+/- 1.5; 1.5 0.5-+/- 1.6; 1.6 Cs-137 1.3 +/- 2.8; 2.8 2.7_+/- 3.2; 3.3 0.4 1.5; 1.5 -2.5_+/- 1.8; 1.9 Ba/La-140 -5.0_+/- 2.9; 3.0 10.6_+/- 3.2; 3.6 0.6_ 1.6; 1.6 1.1-+/- 1.7; 1.7 Unable to collect as scheduled due to pump malfunction; new location (BY-14-1) found as of 08-21 3200 German Church Road (North).

b Collected from new location BY-14-1.

111-37

BYRON Table 8. Well Water Collection: Quarterly ODCM H-3 = 200, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Required LLDs: Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration BY-32 Ron Wolford Date Collected 01-09-01 04-10-01 07-10-01 10-09-01 Lab Code BYWW-235 BYWW-2673 BYWW-5908 BYWW-9023 H-3 56- 83; 84 77 +/- 84; 84 81 +/- 77; 78 138 +/- 83; 85 Mn-54 -0.1- 1.5; 1.5 -0.1 +/- 2.1; 2.1 -0.5 +/- 1.3; 1.3 -0.6 +/- 1.7; 1.7 Fe-59 2.0+ 2.6; 2.6 2.0 +/- 5.1; 5.2 -2.0 +/- 2.5; 2.5 -0.6 +/- 4.0; 4.0 Co-58 0.5+/- 1.5; 1.5 1.2 +/- 2.3; 2.3 0.4 +/- 1.0; 1.0 1.7+/- 1.8; 1.8 Co-60 -1.0+/- 1.4; 1.4 0.9 +/- 1.8; 1.8 1.0++/- 1.2; 1.2 0.2_+/- 2.1; 2.1 Zn-65 5.0-+/- 3.0; 3.1 -3.3 +/- 5.2; 5.2 -1.1 +/- 2.9; 2.9 -2.8++/- 4.1; 4.1 Zr/Nb-95 -0.4 +/- 1.4; 1.4 -3.4 +/- 2.5; 2.5 -3.5 +/- 1.4; 1.5 1.4-+/- 2.0; 2.0 Cs-134 0.7_+/- 1.6; 1.6 -0.5+/- 2.3; 2.3 -0.6 +/- 1.4; 1.4 0.6 +/- 2.2; 2.2 Cs-137 0.7+/- 1.4; 1.4 -3.0-+/- 2.6; 2.7 -0.1+/- 1.4; 1.4 -0.7 +/- 1.7; 1.7 Ba/La-140 -4.8 +/- 1.8; 1.9 -12.0+/- 3.3; 3.7 -17.9+/- 1.5; 3.0 -11.0++/- 2.3; 2.8 nT -38

BYRON MILCH ANIMALS, NEAREST LIVESTOCK, AND NEAREST RESIDENCES CENSUSES 111-39

BYRON MILCH ANIMALS CENSUS, 2001 BY-26-1 Dennis Herbert 12.0 miles, Sector A 10% Pasture 90% Feed BY-20 K. Reeverts Dairy Farm 1.9 miles, Sector C 0% Pasture 100% Feed BY-30 Don Roos Dairy 5.1 miles, Sector G 0% Pasture 100% Feed 2.5 miles, Sector N 10% Pasture 90% Feed 5.8 miles, Sector Q 20% Pasture 80% Feed Census conducted by W. Mueller on August 27, 2001 111-40

BYRON NEAREST LIVESTOCK CENSUS, 2001 Nearest livestock of the Byron Station within a 6.2 mile radius.

Sector Direction Distance A N 3.0 miles B NNE 1.5 miles C NE 0.4 miles D ENE 3.0 miles E E 1.4 miles F ESE 1.5 miles G SE 5.5 miles H SSE 3.2 miles 1 S 0.6 miles K SSW 2.2 miles L SW 3.2 miles M WSW 1.7 miles N W 2.5 miles P WNW 3.5 miles Q NW 3.8 miles R NNW 1.4 miles Census conducted by W. Mueller on August 27,2001 H1-41

BYRON NEAREST RESIDENCE CENSUS, 2001 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 27, 2001 111-42

BYRON 4.0 TLD DATA*

TLD Data provided by Exelon Nuclear.

II-43

Exelon Nuclear Environmental Site Report for Byron Gamma Radiation Measured in mR by TLDs Site Description Quarter 1 Quarter 2 Quarter 3 Quarter 4 2001 2001 2001 2001 I. INDICATOR LOCATIONS

a. Air Samplers BY-01-1 BYRON 17.0 17.0 15.0 18.0 BY-01-2 BYRON 19.0 17.0 14.0 16.0 BY-04-1 PAYNES PT. 19.0 24.0 17.0 24.0 BY-04-2 PAYNES PT. 18.0 23.0 18.0 24.0 BY-06-1 OREGON 20.0 19.0 13.0 18.0 BY-06-2 OREGON 17.0 21.0 14.0 17.0 BY-21-1 NEARSITE N 17.0 19.0 13.0 18.0 BY-21-2 NEARSITE N 16.0 17.0 17.0 18.0 BY-22-1 NEARSITE ESE 20.0 22.0 17.0 24.0 BY-22-2 NEARSITE ESE 20.0 25.0 21.0 27.0 BY-23-1 NEARSITE S 19.0 20.0 20.0 24.0 BY-23-2 NEARSITE S 19.0 23.0 16.0 23.0 BY-24-1 NEARSITE SW 19.0 22.0 15.0 21.0 BY-24-2 NEARSITE SW 19.0 23.0 18.0 22.0 Air Sampler Mean S. D. 18.5 +/-1.3 20.9 +/-2.7 16.3 +/-2.5 21.0 +/-3.4 Annual Air Sampler Mean + S.D. 19.2 +/-3.2

b. Inner Ring (100 Series)

BY-101-1 16.0 18.0 12.0 15.0 BY-101-2 18.0 18.0 14.0 16.0 BY-1 02-1 22.0 21.0 20.0 28.0 BY-1 02-2 22.0 22.0 21.0 26.0 BY-1 03-1 21.0 20.0 18.0 23.0 BY-1 03-2 22.0 24.0 19.0 24.0 BY-104-1 22.0 24.0 20.0 25.0 BY-104-2 23.0 25.0 18.0 24.0 BY-105-1 24.0 20.0 16.0 24.0 BY-105-2 24.0 23.0 19.0 21.0 BY-106-1 23.0 21.0 17.0 24.0 BY-106-2 21.0 23.0 16.0 23.0 BY-107-1 24.0 26.0 21.0 26.0 BY-107-2 19.0 25.0 20.0 25.0 BY-1 08-1 18.0 25.0 21.0 21.0 BY-1 08-2 19.0 19.0 20.0 22.0 BY-1 09-1 18.0 23.0 19.0 22.0 BY-1 09-2 18.0 24.0 16.0 22.0 BY-110-1 18.0 22.0 17.0 21.0 BY-1 10-2 18.0 20.0 21.0 23.0 BY-111-3 19.0 21.0 20.0 23.0 BY-111-4 18.0 20.0 18.0 22.0 111-44

Exelon Nuclear Environmental Site Report for Byron Gamma Radiation Measured in mR by TLDs Site Description Quarter 1 Quarter 2 Quarter 3 Quarter 4 2001 2001 2001 2001

b. Inner Ring (100 Series)

BY-112-3 19.0 20.0 19.0 24.0 BY-112-4 18.0 20.0 18.0 19.0 BY-113-1 19.0 20.0 18.0 23.0 BY-1 13-2 17.0 18.0 14.0 18.0 BY-1 14-1 18.0 19.0 15.0 19.0 BY-1 14-2 18.0 20.0 17.0 19.0 BY-1 15-1 18.0 19.0 16.0 21.0 BY-1 15-2 16.0 18.0 18.0 18.0 BY- 116-1 17.0 18.0 17.0 19.0 BY-116-2 17.0 19.0 18.0 17.0 Inner Ring Mean +/- S.D. 19.5 +/-2.4 21.1 +/-2.4 17.9 +/-2.2 21.8 +/-3.1 Annual Inner Ring Mean +/- S.D. 20.1 +/-2.9

c. Outer Ring (200 Series)

BY-201-3 18.0 19.0 18.0 20.0 BY-201-4 18.0 19.0 18.0 19.0 BY-202-1 17.0 18.0 16.0 21.0 BY-202-2 19.0 21.0 19.0 20.0 BY-203-1 16.0 16.0 15.0 17.0 BY-203-2 18.0 19.0 20.0 20.0 BY-204-1 20.0 19.0 17.0 20.0 BY-204-2 23.0 21.0 21.0 23.0 BY-205-1 23.0 22.0 20.0 25.0 BY-205-2 22.0 21.0 19.0 21.0 BY-206-1 23.0 21.0 20.0 24.0 BY-206-2 18.0 20.0 16.0 20.0 BY-207-1 18.0 21.0 20.0 27.0 BY-207-2 19.0 21.0 19.0 20.0 BY-208-1 19.0 21.0 21.0 22.0 BY-208-2 18.0 21.0 19.0 25.0 BY-209-1 19.0 20.0 21.0 26.0 BY-209-4 22.0 20.0 17.0 21.0 BY-210-3 22.0 20.0 16.0 22.0 BY-210-4 18.0 20.0 15.0 21.0 BY-211-1 23.0 19.0 17.0 21.0 BY-211-4 23.0 20.0 17.0 22.0 BY-212-1 24.0 21.0 17.0 21.0 BY-212-4 20.0 22.0 17.0 24.0 BY-213-1 18.0 21.0 17.0 23.0 BY-213-4 18.0 21.0 17.0 24.0 BY-214-1 19.0 21.0 16.0 23.0 BY-214-4 19.0 20.0 17.0 20.0 111-45

Exelon Nuclear Environmental Site Report for Byron Gamma Radiation Measured in mR by TLDs Site Description Quarter 1 Quarter 2 Quarter 3 Quarter 4 2001 2001 2001 2001 Outer Ring (200 Series)

BY-215-1 20.0 23.0 17.0 22.0 BY-215-4 20.0 22.0 21.0 24.0 BY-216-1 19.0 24.0 21.0 22.0 BY-216-2 18.0 20.0 17.0 19.0 Outer Ring Mean +/- S.D. 19.7 +/-2.1 20.4 +/-1.5 18.1 +/-1.9 21.8 +/-2.2 Annual Outer Ring Mean +/- S.D. 20.0 +/-2.4 INDICATOR LOCATION MEAN +/- S.D. 19.4 +/-2.2 20.8 +/-2.1 17.7 +/-2.2 21.7 +/-2.8 Annual INDICATOR MEAN +/- S.D. 19.9 +/-2.8 II. CONTROL LOCATIONS BY-08-1 LEAF RIVER 16.0 20.0 14.0 17.0 BY-08-2 LEAF RIVER 16.0 21.0 14.0 19.0 CONTROL LOCATION MEAN +/- S.D. 16.0 +/-0.0 20.5 +/-0.7 14.0 +/-0.0 18.0 +/-1.4 Annual CONTROL LOCATION MEAN +/- S.D. 17.1 +/-0.0 111-46

BYRON 5.0 GRAPHS OF DATA TRENDS 111-47

Air Particulates - Gross Beta BY-08(C) Leaf River 10.0 8.0 CY)

E 6.0 C\J 0

0 4.0 2.0 0 .0 I I 1 i i 1 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 1. Continuous collection with weekly exchange of particulate filter.

BY-21 Byron Nearsite N 10.0 8.0 CO) 6.0 0O_

N o,

C?

LIJ 4.0 2.0 0.0 I I I I I 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 2. Continuous collection with weekly exchange of particulate filter.

111-48

Air Particulates - Gross Beta BY-22 Byron Nearsite ESE 10.0 8.0 CO E 6.0 0

C\j 0u, 0U 4.0 2.0 o.0 1 I I I 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 3. Continuous collection with weekly exchange of particulate filter.

BY-23 Byron Nearsite S 10.0 8.0 m3 E 6.0 0

0 LU 4.0 0

2.0 0 .0 I I I I I 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 4. Continuous collection with weekly exchange of particulate filter.

IIH-49

Air Particulates - Gross Beta BY-24 Byron Nearsite SW 10.0 8.0 CO E 6.0 03 C-)

C?

wL 0

0 4.0 2.0 0.0 I I I 1 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 5. Continuous collection with weekly exchange of particulate filter.

IlI-50

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

4.0 2.0 0.0 +

12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 6. Monthly composites of weekly collections.

BY-29 (C) Byron, Upstream 14.0 -

12.0 10.0-No samples; river frozen. No samples; 8.0 river frozen.

0 a

-j 6.0 4.0.

2.0-nflt 2n

-I. I I I I 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 7. Monthly composites of weekly collections.

IHI-51

Surface Water-Tritium BY-12 Oregon Pool of Rock River, Downstream 3900 3500 3100 2700 2300 1900 1500 1100 700 300

-100 I I I i I 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 8. Quarterly composites of weekly collections.

BY-29(C) Byron, Upstream 500 400 300 0 200 100_

0__

-100 I 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 9. Quarterly composites of weekly collections.

111-52

Well Water-Tritium BY-14 ComEd Offsite Well 500 400 300

-J C- 200 100 7-0_

-100 I - I 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 10. Quarrterly collections.

BY-18 McCoy Farmstead Well 500 400 300

-J C 200 a_

100 0

-100 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 11. Quarterly collections.

111-53

Well Water-Tritium BY-32 Wolford Well 500 -r 400-300 +

-J 200 -

a 100 -

0+

-100 1 I~~~~

12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 12. Quarterly collections.

111-54

APPENDIX IV INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Environmental Incorporated Midwest Laboratory participates in intercomparison studies administered by Environmental Resource Associates which serve as a replacement for studies previously conducted by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. The results are reported annually in Appendix IV. Also reported are results of mixed analyte and Environmental Measurements Laboratory performance evaluation programs.

January, 2001 through December, 2001

Appendix IV Interlaboratory Comparison Program Results Enviromental Incorporated Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of its quality control pvogram in December 1971. These programs are operated by agencies which supply environmental type samples (e.g., milk or water) 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 the laboratory's analytical procedures and to alert it to 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.

The results in Table IV-1 were obtained through participation in the environmental sample crosscheck program for milk, water, air filters, and food samples through December 31, 2001. This program was conducted by Environmental Resource Associates and serves to replace studies formerly conducted by the U.S. Environmental Protection Agency Office of Research and Development, National Exposure Research Laboratory Characterization Research Division-Las Vegas, Nevada.

Table IV-2 lists results of the mixed analyte performance evaluation program.

Table IV-3 lists results of the Environmental Measurement Laboratory Quality Assessment Program.

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

comparison of ERA and Environmental, Inc. Midwest Laboratory results!

Concentration in pCi/Lb Lab Sample Date Control Laboratory resultsd Code Type Collected Analysis ERA ResultC Limits STW-897 Water Jan, 2001 Gr. Alpha 45.7+/-11.4 25.9 - 65.5 31.9 +/- 2.1 ; 4.4 STW-897 Water Jan, 2001 Gr. Beta 16.7 +/- 5.0 8.0 - 25.4 25.3 +/- 2.7; 4.7 STW-900 Water Feb, 2001 1-131 28.3 +/- 3.0 23.1- 33.5 27.2 +/- 0.8; 2.8 STW-902 Water Feb, 2001 Ra-226 4.7_+/-0.7 3.4-5.9 4.0_+/-0.1;0.4 STW-902 Water Feb, 2001 Ra-228 14.4 +/-3.6 8.2-20.6 13.8 +/- 0.4; 1.4 STW-902 Water Feb, 2001 Uranium 20.4 +/-3.0 15.2 - 25.6 17.0 +/- 0.3; 1.7 STW-903 Water Mar, 2001 H-3 17800.0 +/- 1780.0 14700.0 - 20900.0 17400.0 +/- 69.7;2367.4 STW-917 Water Apr, 2001 Gr. Alpha 56.0 +/- 14.0 31.8 - 80.2 57.4 +/- 3.5; 7.8 STW-917 Water Apr, 2001 Ra-226 17.7-+/-2.7 13.1 - 22.3 13.5 + 0.4; 1.4 STW-917 Water Apr, 2001 Ra-228 8.1 +/-2.0 4.6- 11.6 10.1 +/- 0.6; 1.2 STW-917 Water Apr, 2001 Uranium 15.6 +/-3.0 10.4 - 20.8 14.2 +/- 0.2; 1.4 STW-918 Water Apr, 2001 Co-60 26.4 +/- 5.0 17.7 - 35.1 27.9 +/- 1.4; 4.2 STW-918 Water Apr, 2001 Cs-134 16.9 +/- 5.0 8.2 - 25.6 16.0 +/- 0.4; 2.3 STW-918 Water Apr, 2001 Cs-137 186.0 +/- 9.3 170.0 - 202.0 195.4 +/- 1.5; 28.2 STW-918 Water Apr, 2001 Gr. Beta 340.0 +/- 51.0 252.0 - 428.0 343.0 +/- 1.7; 52.9 STW-918 Water Apr, 2001 Sr-89 64.1-+/-5.0 55.5 - 72.8 62.8 +/- 5.7; 8.5 STW-918 Water Apr, 2001 Sr-90 33.8 +/- 5.0 25.1 - 42.5 34.2 +/- 1.6; 3.8 STW-919 Water Jun, 2001 Ba-133 36.0 +/- 5.0 27.3 - 44.7 37.8 +/- 1.2; 5.6 STW-919 Water Jun, 2001 Co-60 46.8 +/-5.0 38.1 - 55.5 49.9 +/- 0.7; 7.2 STW-919 Water Jun, 2001 Cs-134 15.9 +/- 5.0 7.2 - 24.6 16.0 +/- 1.4; 2.7 STW-919 Water Jun, 2001 Cs-137 197.0 +/- 9.9 180.0 - 214.0 208.0 +/- 1.7; 30.0 STW-919 Water Jun, 2001 Zn-65 36.2 +/- 5.0 27.5 - 44.9 37.8 +/- 0.7; 5.5 STW-920 Water Jun, 2001 Ra-226 15.4 +/- 2.3 11.4 - 19.4 14.6 +/- 0.4; 1.5 STW-920 Water Jun, 2001 Ra-228 4.5 +/- 1.1 2.6 - 6.5 6.2 +/- 0.2; 0.7 STW-920 Water Jun, 2001 Uranium 55.7 +/-5.6 46.1 - 65.3 49.0+/-1.0;5.0

~i- 1

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

comparison of ERA and Environmental, Inc. Midwest Laboratory results!

Concentration in pCi/Lb Lab Sample Date Control Code Type Collected Analysis ERA Resultc Limits Lal )oratory resultsd STW-921 Water Jul, 2001 Sr-89 31.2"5.0 22.5 - 39.9 19.8 +/- 1.5; 2.5 Delay in processing may have attributed to deviation.

Result of reanalysis; Sr-89, 35.3 +/- 4.4 pCi/L. Sr-90, 25.0 +/- 2.8 pCi/L.

STW-921 Water Jul, 2001 Sr-90 25.9 +/- 5.0 17.2 - 34.6 26.3 +/- 1.1; 2.9 STW-922 Water Jul, 2001 Gr. Alpha 17.8 +/-5.0 9.1 - 26.5 23.3 +/- 1.9; 3.4 STW-922 Water Jul, 2001 Gr. Beta -53.0 +/- 10.0 35.7 - 70.3 48.5 +/- 4.6; 8.8 STW-924 Water Aug, 2001 H-3 2730.0 +/- 356.0 2110.0 - 3350.0 2680.0 +/-41.9;366.9 STW-931 Water Sep, 2001 Ra-226 10.8 +/- 1.6 8.0 - 13.6 10.9+/-0.2;1.1 STW-931 Water Sep, 2001 Ra-228 9.0 +/-2.2 5.1 - 12.8 9.7+/- 1.1; 1.5 STW-931 Water Sep, 2001 Uranium 13.1 +/-3.0 7.9 - 18.3 11.2 +/- 0.1; 1.1 STW-932 Water Oct, 2001 1-131 7.7+/-2.0 4.2 - 11.2 7.7+/- 0.3; 0.8 STW-933 Water Oct, 2001 Gr. Alpha 97.5 +/- 24.4 55.3 - 140.0 82.2 +/- 4.0; 10.8 STW-933 Water Oct, 2001 Ra-226 10.8 +/- 1.6 8.0 - 13.6 9.5-+/-1.2;1.5 STW-933 Water Oct, 2001 Ra-228 15.6 +/-3.9 8.9-22.4 17.0-+/-0.8;1.9 STW-933 Water Oct, 2001 Uranium 37.2 +/- 3.7 30.7 - 43.6 32.2 +/- 1.4; 3.5 STW-934 Water Oct, 2001 Co-60 78.4 +/-5.0 69.7 - 87.1 82.4 +/- 0.9; 11.9 STW-934 Water Oct, 2001 Cs-134 54.1 +/-5.0 45.4 - 62.8 52.2 +/- 1.3; 7.6 STW-934 Water Oct, 2001 Cs-137 37.9 +/- 5.0 26.3 - 43.7 39.4 +/- 0.6; 5.7 STW-934 Water Oct, 2001 Gr. Beta 192.0 +/- 28.8 142.0 - 242.0 166.0 +/- 7.1 ;26.5 STW-934 Water Oct, 2001 Sr-89 16.7+/-5.0 8.0-25.4 12.8 +/- 0.8; 1.5 STW-934 Water Oct, 2001 Sr-90 7.7 +/- 5.0 -1.0 - 16.4 6.8 +/- 0.7; 0.9 STW-935 Water Oct, 2001 Gr. Alpha 64.0 +/- 16.0 36.5 -91.5 63.5 +/- 2.5; 8.1 STW-935 Water Oct, 2001 Gr. Beta 21.5 +/-5.0 12.8 - 30.2 26.0 +/- 1.2; 4.2 STW-938 Water Nov, 2001 Ba-133 69.3 +/- 6.9 57.5 - 81.1 66.7 +/- 1.2; 9.7 STW-938 Water Nov, 2001 Co-60 59.7_+/-_5.0 51.0 - 68.4 59.3 +/- 0.6; 8.6 STW-938 Water Nov, 2001 Cs-134 93.9 +/- 5.0 85.2 - 103.0 86.7 +/- 1.5; 12.6 STW-938 Water Nov, 2001 Cs-137 42.0 +/- 5.0 33.3 - 50.7 45.0 +/- 1.0; 6.6 IV1 - 2

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

comparison of ERA and Environmental, Inc. Midwest Laboratory results.!

Concentration in pCi/Lb Lab Sample Date Control Code Type Collected Analysis ERA Result' Limits Laboratory resultsd STW-938 Water Nov, 2001 Zn-65 77.3>+7.7 63.9-90.7 80.7+/- 0.6; 11.6

'Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the environmental samples crosscheck program operated by Environmental Resources Associates (ERA).

b All results are in pCi/L, except for elemental potassium (K) data in milk, which are in mg/L; air filter samples, which are in pCi/Filter.

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

d Unless otherwise indicated, the result is given as the mean +/- standard deviation for three determinations. The number after the semi-colon reflect Total Propagated Uncertainty for the result.

IV1 -3

Table IV-2. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP) a Concentration in Bq/kgb Lab Sample Date MAPEP Result, Control Laboratory results Code Type Collected Analysis 1s, N=1 Limits _Standard Deviationc STSO-923 SOIL Jan, 2001 Am-241 0.0-2.6 Included in the testing series as a "false positive". No activity expected. Result of analysis; < 0.8 Bq/L.

STSO-923 SOIL Jan, 2001 Co-57 103.0 +/-10.3 72.1-133.9 100.2 +/- 3.5; 10.6 STSO-923 SOIL Jan, 2001 Co-60 1,270.0 +/-127.0 889.0 - 1,651.0 1,285.1 +/- 5.3; 128.6 STSO-923 SOIL Jan, 2001 Cs-134 91.1+/-9.1 63.8-118.4 81.1 +/- 1.8; 8.3 STSO-923 SOIL Jan, 2001 Cs-137 1,240.0 +/-124.0 868.0 - 1,612.0 1,210.6 +/- 6.6; 121.2 STSO-923 SOIL Jan, 2001 K-40 652.0 +/- 65.2 456.4 - 847.6 732.6 +/- 21.2; 76.3 STSO-923 SOIL Jan, 2001 Mn-54 203.0 +/-20.3 142.1 - 263.9 212.6 +/- 6.7; 22.3 STSO-923 SOIL Jan, 2001 Pu-238 115.0+/-11.5 80.5- 149.5 110.7 +/- 7.2; 13.2 STSO-923 SOIL Jan, 2001 Pu-239/40 83.4+/-8.3 58.4-108.4 79.6 +/- 5.9; 9.9 STSO-923 SOIL Jan, 2001 Sr-90 209.0 +/-20.9 146.3 - 271.7 159.8 +/- 9.5; 18.6 STSO-923 SOIL Jan, 2001 U-233/4 60.0 +/- 6.0 42.0 - 78.0 45.0 +/- 3.9; 6.0 STSO-923 SOIL Jan, 2001 U-238 191.0 +/- 19.1 133.7 - 248.3 165.6 +/- 7.4; 18.1 STSO-923 SOIL Jan, 2001 Zn-65 382.0 +/-38.2 267.4 - 496.6 428.5+/-10.9;44.2 "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.

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

IV2 - 1

Table IV-3. Environmental Measurements Laboratory Quality Assessment Program (EML)°.

Concentration in Bq/Lb Lab Sample Date Control Code Type Collected Analysis Laboratory Resultc EML Resultd Limits' STSO-904 Soil Mar, 2001 Ac-228 45.6 +/- 4.0; 6.1 42.7+/- 1.7 0.8 - 1.5 STSO-904 Soil Mar, 2001 Am-241 14.4 +/- 0.5; 1.5 14.8 +/-0.5 0.6 - 2.6 STSO-904 Soil Mar, 2001 Bi-212 53.2 +/- 3.1; 6.2 42.0_+/-4.1 0.5 - 1.2 Naturally-occurring radium and thorium daughters are present in the shield background, and a probable cause of the higher bias seen for isotopes of lead and bismuth.

Soil Mar, 2001 Bi-214 42.1 +/- 7.7; 8.8 32.6+/- 1.4 0.8 - 1.5 STSO-904 STSO-904 Soil Mar, 2001 Cs-137 1,772.6 +/- 79.8; 194.4 1,740.0 +/- 90.0 0.8 - 1.3 Soil Mar, 2001 K-40 583.8 +/- 52.6; 78.6 468.0 +/- 25.0 0.8 - 1.4 STSO-904 STSO-904 Soil Mar, 2001 Pb-212 46.6_+/- 8.5; 9.7 41.5 +/-2.2 0.7 - 1.4 STSO-904 Soil Mar, 2001 Pb-214 45.3 +/- 8.6; 9.7 34.3 +/- 1.6 0.8 - 1.5 STSO-904 Soil Mar, 2001 Pu-239/40 26.0 +/- 0.8; 2.7 25.6 +/- 0.7 0.7 - 1.3 STSO-904 Soil Mar, 2001 Sr-90 55.6 +/- 2.2; 6.0 69.0 +/-5.7 0.6 - 3.9 STW-905 Water Mar, 2001 Am-241 2.2 +/- 0.1; 0.3 1.7_+/-0.1 0.8 - 1.5 STW-905 Water Mar, 2001 Co-60 97.0 +/- 0.8; 14.0 98.2 +/- 3.6 0.8 - 1.2 STW-905 Water Mar, 2001 Cs-137 70.1 +/-_4.0; 10.9 73.0 +/-3.7 0.8 - 1.2 STW-905 Water Mar, 2001 H-3 76.5 +/-_5.5; 11.8 79.3 +/-2.0 0.7-2.3 STW-905 Water Mar, 2001 Pu-238 1.7+/- 0.1; 0.2 1.6 +/-0.1 0.7 - 1.2 STW-905 Water Mar, 2001 Pu-239/40 1.7+/- 0.1; 0.2 1.6_+/-0.1 0.8 - 1.3 STW-905 Water Mar, 2001 Sr-90 3.9 +/-0.1; 0.4 4.4 +/- 0.2 0.6 - 1.5 STW-905 Water Mar, 2001 U-233/4 0.9 +/- 0.1; 0.1 1.0 +/- 0.1 0.8 - 1.4 STW-905 Water Mar, 2001 U-238 0.9 +/- 0.1; 0.1 1.0 +/- 0.0 0.8 - 1.3 STW-906 Water Mar, 2001 Gr. Alpha 1,724.6 + 141.7; 253.7 1,900.0 +/- 190.0 0.6 - 1.3 STW-906 Water Mar, 2001 Gr. Beta 1,246.4 +/- 31.1; 194.4 1,297.0 +/- 100.0 0.6 - 1.5 STAP-907 Air Filter Mar, 2001 Am-241 0.5 +/- 0.0; 0.1 0.5 +/-0.0 0.7-2.4 STAP-907 Air Filter Mar, 2001 Co-60 20.1 +/- 0.2; 2.0 19.4 +/- 0.5 0.8 - 1.3 STAP-907 Air Filter Mar, 2001 Cs-134 2.7 +/- 0.2; 0.3 2.8 +/- 0.2 0.7 - 1.2 STAP-907 Air Filter Mar, 2001 Cs-137 9.9 +/- 0.2; 1.0 8.8 +/-0.3 0.8 - 1.4 STAP-907 Air Filter Mar, 2001 Mn-54 7.3 +/- 0.2; 0.8 6.5 +/- 0.3 0.8 - 1.4 STAP-907 Air Filter Mar, 2001 Pu-238 0.2 +/- 0.0; 0.0 0.2 +/- 0.0 0.7 - 1.4 STAP-907 Air Filter Mar, 2001 Pu-239/40 0.1 +/- 0.0; 0.0 0.1+/- 0.0 0.7- 1.3 STAP-907 Air Filter Mar, 2001 Sr-90 7.40 .2 0.8 7.1+/- 0.2 0.6 - 2.1 STAP-907 Air Filter Mar, 2001 U-233/4 0.1 +/- 0.0; 0.0 0.0 +/-0.0 0.8 - 1.9 STAP-907 Air Filter Mar, 2001 U-238 0.1 +/- 0.0; 0.0 0.0 +/- 0.0 0.8 - 1.6 STAP-908 Air Filter Mar, 2001 Gr. Alpha 2.7+/- 0.0; 0.3 4.0 +/- 0.3 0.6 - 1.5 Air Filter Mar, 2001 Gr. Beta 2.3 +/- 0.0; 0.2 2.6+/- 0.2 0.8 - 1.5 STAP-908 WV3 - 1

Table IV-3. Environmental Measurements Laboratory Quality Assessment Program (EML)'.

Concentration in Bq/Lb Lab Sample Date Control Code Type Collected Analysis Laboratory Result' EML Resultd Limits' STVE-909 Vegetation Mar, 2001 Am-241 6.1 +/- 0.2; 0.6 6.2 +/- 0.3 0.7-2.3 Vegetation Mar, 2001 Cm-244 3.5 +/- 0.5; 0.6 3.7 +/-0.3 0.6 - 1.6 STVE-909 Vegetation Mar, 2001 Co-60 28.5 + 2.1; 4.4 30.4 +/- 1.2 0.8 - 1.5 STVE-909 Vegetation Mar, 2001 Cs-137 795.5 +/- 76.4; 132.4 842.0 +/- 42.0 0.8 - 1.4 STVE-909 Vegetation Mar, 2001 K-40 592.6 +/- 42.5; 72.9 603.0 +/- 32.0 0.8 - 1.4 STVE-909 Vegetation Mar, 2001 Pu-239/40 8.5 +/- 0.6; 1.0 9.6 +/- 1.3 0.7-1.5 STVE-909 Vegetation Mar, 2001 Sr-90 1,239.6 +/- 130.0; 179.6 1,330.0 +/- 70.0 0.5 - 1.2 STVE-909 Water Sep, 2001 Am-241 0.7+/- 0.1; 0.1 0.8 +/- 0.0 0.8 - 1.5 STW-925 Water Sep, 2001 Co-60 206.7 +/-4.7; 30.1 209.0 +/- 7.6 0.8 - 1.2 STW-925 Water Sep, 2001 Cs-137 46.6 +/- 0.8; 6.8 45.1 +/-2.5 0.8 - 1.2 STW-925 Water Sep, 2001 H-3 254.1 +/- 3.6;,34.7 207.0 +/- 2.7 0.7 - 2.3 STW-925 Water Sep, 2001 Ni-63 50.9 +/- 3.0; 5.9 45.3 +/-4.5 0.7- 1.3 STW-925 Water Sep, 2001 Pu-238 1.1 +/- 0.1; 0.1 1.1+/-_0.1 0.7- 1.2 STW-925 Water Sep, 2001 Pu-239/40 1.6 +/-0.1; 0.2 1.6 +/- 0.1 0.8-1.3 STW-925 Water Sep, 2001 Sr-90 4.1 +/- 0.3; 0.5 3.7+/-0.4 0.6 - 1.5 STW-925 Water Sep, 2001 Uranium 2.2 +/- 0.2; 0.3 2.4 +/- 0.1 0.7 - 1.4 STW-925 Water Sep, 2001 Gr. Alpha 1,220.0 +/- 32.0; 152.2 1,150.0 +/- 115.0 0.6 - 1.3 STW-926 Water Sep, 2001 Gr. Beta 8,461.0 +/- 206.0; 1,319.2 7,970.0 +/- 800.0 0.6 - 1.5 STW-926 Soil Sep, 2001 Ac-228 68.1 +/- 1.4; 7.0 59.6 +/-2.1 0.8 - 1.5 STSO-927 Soil Sep, 2001 Am-241 5.2 +/- 1.3; 1.4 4.4 + 0.3 0.6 - 2.6 STSO-927 Soil Sep, 2001 Bi-212 65.1 +/- 1.6; 6.7 62.1 +/-5.2 0.5 - 1.2 STSO-927 Soil Sep, 2001 Bi-214 47.3 +/- 4.7; 6.7 36.9 +/- 1.5 0.8 - 1.5 STSO-927 Soil Sep, 2001 Cs-137 659.2 +/- 10.8; 66.8 612.3 +/- 30.6 0.8 - 1.3 STSO-927 Soil Sep, 2001 K-40 737.7_+/- 16.6; 75.6 623.3 +/- 33.0 0.8 - 1.4 STSO-927 Soil Sep, 2001 Pb-212 64.7_+/-3.8; 7.5 58.3 +/-3.1 0.7- 1.4 STSO-927 Soil Sep, 2001 Pb-214 53.7_ +/-7.7; 9.4 39.7+/- 1.7 0.8 - 1.5 STSO-927 Soil Sep, 2001 Pu-239/40 9.3 +/- 2.9; 3.0 8.9 +/- 0.3 0.7-1.3 STSO-927 Soil Sep, 2001 Sr-90 27.4_+/- 6.3; 6.9 30.6 +/- 1.1 0.6-3.9 STSO-927 Soil Sep, 2001 Uranium 155.6 +/- 7.8; 17.4 194.2 +/- 3.8 0.6- 1.4 STSO-927 Vegetation Sep, 2001 Am-241 7.0 +/- 0.3; 0.8 6.9 +/- 0.4 0.7 - 2.3 STVE-928 Vegetation Sep, 2001 Cm-244 4.3 +/- 0.8; 0.9 4.3 +/- 1.0 0.6-1.6 STVE-928 Vegetation Sep, 2001 Co-60 40.2 +/- 0.9; 5.5 35.3 +/- 1.4 0.8 - 1.5 STVE-928 Vegetation Sep, 2001 Cs-137 1,184.0 +/- 2.8; 161.0 1,030.0 +/- 51.8 0.8 - 1.4 STVE-928 Vegetation Sep, 2001 K-40 1,023.0 +/--44.1; 111.4 898.7 +/- 48.2 0.8 - 1.4 STVE-928 Vegetation Sep, 2001 Pu-239/40 8.9 +/- 1.4; 1.7 11.0+/-0.4 0.7-1.5 STVE-928 IV3 - 2

Table IV-3. Environmental Measurements Laboratory Quality Assessment Program (EML)'.

Concentration in Bq/Lb Lab Sample Date Control Code Type Collected Analysis Laboratory Result' EML Resultd Limits' STVE-928 Vegetation Sep, 2001 Sr-90 1,364.0 +/- 18.4; 137.6 1,612.8 +/- 48.6 0.5 - 1.2 STAP-929 Air Filter Sep, 2001 Am-241 0.1 +/- 30.0; 30.0 0.1 +/-0.0 0.7 - 2.4 STAP-929 Air Filter Sep, 2001 Co-60 16.9 +/- 0.3; 1.7 17.5 +/-0.5 0.8- 1.3 STAP-929 Air Filter Sep, 2001 Cs-134 11.8_+/-0.2; 1.2 13.0++/-0.4 0.7 - 1.2 STAP-929 Air Filter Sep, 2001 Cs-137 18.3 +/- 0.3; 1.9 17.1 +/-0.6 0.8 - 1.4 STAP-929 Air Filter Sep, 2001 Mn-54 85.4 +/- 1.3; 8.6 81.2 +/-4.8 0.8 - 1.4 STAP-929 Air Filter Sep, 2001 Pu-238 0.1 +/- 0.0; 0.0 0.1 +/-0.0 0.7 - 1.4 STAP-929 Air Filter Sep, 2001 Pu-239/40 0.2 +/- 0.0; 0.0 0.2 +/-0.0 0.7- 1.3 STAP-929 Air Filter Sep, 2001 Sr-90 3.1 +/- 0.1; 0.3 3.5 +/- 0.2 0.6 - 2.1 STAP-929 Air Filter Sep, 2001 Uranium 0.2 +/- 0.1; 0.1 0.2 +/- 0.0 0.8 - 2.5 STAP-930 Air Filter Sep, 2001 Gr. Alpha 6.3 +/- 0.1; 0.6 5.4+/- 0.5 0.6 - 1.5 STAP-930 Air Filter Sep, 2001 Gr. Beta 13.8 +/- 0.1; 1.4 12.8 +/- 1.3 0.8 - 1.5

" The Environmental Measurements Laboratory provides the following nuclear species : Air Filters, Soil, Vegetation and Water.

b Results are reported in Bq/L with the following exceptions: Air Filter results are reported in Bq/Filter, Soil results are reported in Bq/Kg, Vegetation results are reported in Bq/Kg.

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

"The control limits are reported by EML as the ratio of Reported Value / EML value and are established from percentiles of historic data distributions (1982-1992). The evaluation of this historic data and the development of the control limits is presented in DOE report EML-564.

TV3 - 3

BYRON 2002-0053, 2001 Annual Radiological Environmental Operating Report

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BYRON 2002-0053, 2001 Annual Radiological Environmental Operating Report

Text

Subject:

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

1.0 INTRODUCTION

1.0 INTRODUCTION

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