SVPLTR 05-0023, Annual Radiological Environmental Operating Report for 2004

Annual Radiological Environmental Operating Report for 2004

ML051430405
Person / Time
Site:	Dresden
Issue date:	05/13/2005
From:	Bost D Exelon Generation Co, Exelon Nuclear
To:	Document Control Desk, NRC/FSME
References
+sunsi/sispmjr=200603, FOIA/PA-2010-0209, SVPLTR# 05-0023
Download: ML051430405 (177)

Text

Exelon Generation Company, LLC www.exeloncorp.com Exelkn( Nuclear Dresden Nuclear Power Station 6500 North Dresden Road Morris, IL 60450-9765 May 13, 2005 SVPLTR # 05-0023 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Dresden Nuclear Power Station Units 1, 2, and 3 Facility Operating License No. DPR-2 Renewed Facility Operating License Nos. DPR-19 and DPR-25 NRC Docket Nos.50-010, 50-237. and 50-249

Subject:

Dresden Nuclear Power Station Annual Radiological Environmental Operating Report for 2004 The attached "Annual Radiological Environmental Operating Report,' is submitted in accordance with Section 6.9.A.3 of the Unit 1 Dresden Nuclear Power Station Technical Specifications and Section 5.6.2, "Annual Radiological Environmental Operating Report," of the Units 2 and 3 Technical Specifications. This report provides the results of the radiological environmental and meteorological monitoring programs for the 2004 calendar year.

Should you have any questions concerning this letter, please contact Mr. Pedro Salas, Regulatory Assurance Manager, at (815) 416-2800.

espectfully, Danny G.

Site Vi ceresident Dresder Nuclear Power Station Enclosure cc: Regional Administrator - NRC Region IlIl NRC Senior Resident - Dresden Nuclear Power Station - C' S i

DRESDEN STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 2004 MAY 2005

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

SUMMARY

............................................................................................................. 2 1.0 EFFLUENTS ................................................................ 3 1.1 Gaseous Effluents to the Atmosphere ............................................................. 3 1.2 Liquids Released to Illinois River ................................................................ 3 2.0 SOLID RADIOACTIVE WASTE ................................................................ 3 3.0 DOSE TO MAN ................................................................ 3 3.1 Gaseous Effluent Pathways ................................................................. 3 3.1.1 Noble Gases ............................................................... 3 3.1.1.1 GammaAirDoseRates ............................................................. 4 3.1.1.2 Beta Air and Skin Dose Rates ................................. .................. 4 3.1.2 Radioactive Iodine ............................................................... 4 3.1.2.1 DosetoThyroid ................................................................ 5 3.2 Liquid Effluent Pathways ................................................................ 5 3.3 Assessment of Dose to Member of Public ....................................................... 5 4.0 SITE METEOROLOGY ................................................................ 6 5.0 ENVIRONMENTAL MONITORING........................................................................ 6 5.1 Gamma Radiation ................................................................ 6 5.2 Airborne 1-131 and Particulate Radioactivity .............................. .................... 6 5.3 Terrestrial Activity ................................................................ 7 5.4 Aquatic Radioactivity ................................................................ 7 5.5 Milk ................................................................ 7 5.6 Listing of Missed Samples ................................................................ 8 5.7 Program Modifications ....................... ......................................... 8 6.0 ANALYTICAL PROCEDURES .............................. .................................. 8 7.0 MILCH ANIMALS AND NEAREST CATTLE CENSUSES ................................. 8 8.0 NEAREST RESIDENCE CENSUS . ............................................................... 8 9.0 DREDGE SPOILS RESULTS .......................... ..................................... 8 10.0 INTERLABORATORY COMPARISON PROGRAM RESULTS ........... .............. 8 11.0 ERRATA DATA ................................................................ 8 ii

TABLE OF CONTENTS (continued)

Page APPENDIX I - DATA TABLES AND FIGURES ............................................................ I-I Station Releases Table 1.1-1 Gaseous Effluents ............. ............................. 1-2 Table 1.2-1 Liquid Effluents .......................................... I-3 Table 3.1-1 Maximum Doses Resulting from Airborne Releases Based on Average Meteorological Data .......................................... 1-4 Table 3.2-1 Maximum Doses Resulting from Liquid Effluents Based on Average Meteorological Data ......................................... I-6 Table 3.3-1 10CFR20 Compliance Assessment ....................................... 1-7 Table 3.4-1 Maximum Doses Resulting from Airborne Releases Based on Concurrent Meteorological Data ........................ 1-13 Environmental Monitoring Figure 5.0-1 Fixed Air Sampling and TLD Sites, Milk and Outer Ring TLD Locations ...................................... 1-16 Figure 5.0-2 Inner Ring TLD Sites, Near Station Water, Sediment and Fish Sampling Locations ....................................... 1-17 Table 5.0-1 Radiological Environmental Monitoring Locations .............. I-18 Table 5.0-2 Radiological Environmental Monitoring Program Sampling Locations and Sample Collection and Analyses ...................................... 1-19 Table 5.0-3 - Table 5.0-6 Radiological Environmental Monitoring Program Quarterly Summary ...................................... I-25 APPENDIX II - METEOROLOGICAL DATA .............................................................. II-1 APPENDIX III - 2004 REMP SAMPLE RESULTS ......................................................... III-1 APPENDIX IV - INTERLABORATORY COMPARISON PROGRAM RESULTS ...... IV-1 APPENDIX V - ERRATA DATA..................................................................................... V-1 iii

INTRODUCTION The Dresden Station is located approximately twelve miles southwest of Joliet, Illinois at the confluence of the Des Plaines and Kankakee Rivers where they form the Illinois River. This station uses two boiling water reactors (G.E. design) to generate electricity. Unit 1, which began operating in 1960 and had a rated power output of 200 megawatts electrical (MWe), was shut down permanently on August 31, 1984 and is currently being decommissioned. Unit 2 net rated power output was increased to 912 MWe in 2001; Unit 3 net rated power output was increased to 912 MWe in 2002. Liquid radwaste from Unit 1 is transferred to Units 2 and 3 for collective processing and discharge.

Liquid effluents from Dresden are released to the Illinois River in controlled batches after radioassay of each batch. Gaseous effluents are released to the atmosphere after delay to permit decay of short-lived (noble) gases. Releases to the atmosphere are calculated on the basis of analyses of weekly grab samples of noble gases as well as continuously collected composite samples of iodine and particulate activity sampled during the course of the year. The results of effluent analyses are summarized on a monthly basis and reported to the Nuclear Regulatory Commission as required per Technical Specifications. Airborne concentrations of noble gases, I-131, and particulate radioactivity in offsite areas are calculated using isotopic composition of control effluent and meteorological data.

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

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SUMMARY

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

The Total Effective Dose Equivalent (TEDE) for the period due to licensed activities at Dresden Station calculated for the maximally-exposed individual is 7.03 mrem. The annual limit on TEDE is 100 mrem. This value is largely dominated by the direct radiation constituent from the Unit 2 and Unit 3 turbines (7.02 mrem). The balance of the calculated maximum dose (0.01 mrem) is due to exposure from radionuclides released from the Station in liquid and gaseous effluents.

The assessment of radiation doses to the public is performed in accordance with the ODCM. The results of these analyses confirm that the Station is operating in compliance with 10CFR50 Appendix I, 10CFR20 and 40CFR1 90.

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

1. A total of 1.06E+02 curies of noble gases with a maximum quarterly average release rate of 4.61 E+00 [tCi/sec were released from Dresden Units 1, 2 and 3.

A total of 3.09E-03 curies of 1-131 were released during the year with a maximum quarterly average release rate of 1.12E-04 pCi/sec.

A total of 5.55E-03 curies of beta-gamma emitters were released as airborne particulate matter with a maximum quarterly average release rate of 2.01E-04 giCi/sec. Alpha emitting radionuclides were below LLD for the period. Also, 2.34E+01 curies of tritium were released with a maximum quarterly average release rate of 8.99E-01 pCi/sec.

1.2 Liquids Released to Illinois River Measured concentrations and isotopic composition of radioactivity released in liquid effluents during the year are listed in Table 1.2-1.

A total of 4.39E+06 liters of radioactive liquid wastes containing 1.06E-02 curies of fission and activation products (excluding tritium, noble gases and gross alpha) were discharged from the station. These wastes were released at a maximum quarterly average diluted concentration of 1.65E-08 jiCi/ml from all units. During the same period, 1.95E+01 curies of tritium were released with a maximum quarterly average diluted concentration of 3.03E-05 glCi/ml. Alpha-emitting radionuclides were belowv LLD.

2.0 SOLID RADIOACTIVE WASTE Solid radioactive wastes were shipped by truck to the Barnwell disposal facility, the Envirocare disposal facility or to waste processors. For more detail, refer to the Dresden Station 2004 Annual Radiological Effluent Release Report.

3.0 DOSE TO MAN 3.1 Gaseous Effluent Pathways 3.1.1 Noble Gases To demonstrate compliance with the applicable regulations regarding public radiation dose due to gaseous effluents from Dresden Station, two methods are reported in the following sections. Both methods employ measured isotopic composition and release rates from the station.

Assumed "average meteorological data" are used in ODCM-required calculations performed at least every 31 days. These data use a ten-year average 3

(1/1/1978-12/31/1987) for Dresden Station. Actual "concurrent meteorological data" is used to recalculate the quarterly release information using actual meteorological data for the period.

3.1.1.1 Gamma Air Dose Rates Offsite gamma air and total body doses are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic composition of the noble gases, and average meteorological data for the period. Doses based on concurrent meteorological data are shown in Table 3.4-1.

Based on measured effluents and average meteorological data, the maximum total body dose (from all units) to an individual is calculated to be 1.59E-03 mrem (Table 3.1-1) for the year, with an occupancy or shielding factor of 0.7 included. The maximum total body dose from all units based on measured effluents and concurrent meteorological data would be 3.02E-03 mrem (Table 3.4-1). The maximum gamma air dose based on measured effluents and average meteorological data was 2.1 1E-03 mrad (Table 3.1-1) and 3.84E-03 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 assumed to have a thickness of 0.07 mm and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation based on measured effluents and average meteorological data for the year was 1.75E-03 mrem (Table 3.1-1) and 3.72E-03 mrem based on concurrent meteorological data (Table 3.4-1).

The maximum offsite beta air dose based on measured effluents and average meteorological data for the year was 1.48E-04 mrad (Table 3.1-

1) and 4.44E-04 mrad based on concurrent meteorological data (Table 3.4-1).

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

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3.1.2.1 Dose to Thyroid The hypothetical thyroid dose to a 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 is calculated to be 2.39E-02 mrem during the year (Table 3.1-1 [child]).

3.2 Liquid Effluent Pathways The three principal pathways for potential dose to man from liquid waste effluents are ingestion of potable water, ingesting aquatic foods, and exposure while on the shoreline. Not all of these pathways are 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 Dresden Station Offsite Dose Calculation Manual. The maximum total body dose and organ dose for the year was 3.18E-04 mrem (child) and 3.70E-04 mrem (child/adult), respectively (Table 3.2-1).

3.3 Assessment of Dose to Member of Public During the period January to December, 2004, Dresden Station did not exceed the following limits as shown in Table 3.1-1 and Table 3.2-1 (based on average meteorological data) and as shown in Table 3.4-1 (based on concurrent meteorological data):

• The RETS limits on dose or dose commitment to a member of the public due to radioactive materials in liquid effluents from each reactor unit (1.5 mrem to the total body or 5 mrem to any organ during any calendar quarter; 3 mrem to the total 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).

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

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

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 35' and 300' levels and wind speed class by atmospheric stability class determined from the temperature difference between the 150' and 35' and between the 300' and 35' levels, respectively. Data recovery for all measurements on the tower was 99.2% during 2004 (Table 3.4-1).

5.0 ENVIRONMENTAL MONITORING Table 5.0-1 and Table 5.0-2 provide an outline of the Radiological Environmental Monitoring Program (REMP) as required in the ODCM. Tables 5.0-3 to 5.0-6 summarize data for the year by quarter. A detailed listing of all data is given in Appendix III.

Specific findings for various environmental media are discussed below.

5.1 Gamma Radiation External radiation dose from onsite sources and noble gases released to the atmosphere was measured using CaF2 thermoluminescent dosimeters (TLDs). Each location consists of 2 TLD sets. Quarterly average external radiation dose for the year was 24.5 iz 3.2 mR at indicator locations and 22.4 + 3.1 mR at control locations. TLD results are listed in Section 6.0 in Appendix III and locations are shown in Figures 5.0-1 and 5.0-2.

5.2 Airborne 1-131 and Particulate Radioactivity Locations of the samplers are shown in Figure 5.0-1. Airborne I-131 remained below the LLD of 0.07 pCi/Mi throughout the year in all analyzed samples.

Gross beta concentrations ranged from 0.2E-02 to l.1E-02 pCi/rn and averaged 3

2.4E-02 pCi/m, and were similar to those measured in previous years (except for the period from May 17 through June 7, 1986 when it was influenced by the nuclear reactor accident at Chernobyl). The mean beta measurement value was below the control mean value for every quarter. Quarterly gamma isotopic results were below the LLD level of 0.01 pCi/m .

No radioactivity attributable to station operation was detected in any sample.

5.3 Terrestrial Activity Vegetables were collected in the third quarter and analyzed for I-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.

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5.4 Aquatic Radioactivity Surface water samples were collected weekly from three locations, shown in Figure 5.0-2, and composited monthly for gross beta and gamma-emitters. Quarterly composites were analyzed for tritium. Cs-134, Cs-137, and 1-131 levels were below the detection limit of 15, 18 and 15 pCi/L, respectively. All other gamma emitters were below their respective LLDs in all samples collected during the year.

Gross beta at D-51 (Dresden Lock & Dam) averaged 5.1 pCi/L with a range of 3.4 to 7.5 pCi/L; D-52 (DesPlaines River) gross beta averaged 6.4 pCi/L with a range of 3.8 to 9.1 pCi/L; D-54 (Kankakee River) gross beta averaged 3.3 pCi/L with a range of 2.2-4.8 pCi/L.

Tritium concentration was below the LD of 200 pCi/L in all samples collected from D-52 (DesPlaines River and D-54 (Kankakee River). D-51 (Dresden Lock & Dam) averaged 518 pCi/L with a range of 67 to 1,035 pCi/L.

Well water samples were collected quarterly and analyzed for tritium and gamma-emitting nuclides. Gamma-emitters were below LLD for all samples during the year; tritium activity at D-35 (Dresden Lock & Dam) was also below LLD. Tritium activity at D-23 (Thorsen Well) averaged 843 pCi/L with a second quarter high of 940 pCi/L.

Levels of gamma radioactivity in fish samples were measured and found in all cases to be below the lower limits of detection for the program. The results were similar to those obtained in 1983 through 2003.

Sediment samples were collected twice and analyzed by gamma spectroscopy. The levels of Cs-134 and Cs-137 were below the LLD levels of 0.15 and 0.18 pCi/g dry weight, respectively. Other gamma emitters were below their respective LLDs for the program.

Fish, sediment and water locations are shown in Figure 5.0-2.

5.5 Milk Milk sample locations are shown in Figure 5.0-1. Milk samples were collected biweekly during the grazing season (May through October) and monthly during the balance of the year from the Vince Biros Farm (D-25). I-131 was determined for each sample by chemical separation of 1-131 and beta counting.

1-131 remained below the ODCM-required detection limits of 1.0 pCi/L. The results were similar to those obtained during the 1983 - 2003 period except for samples collected during the second and third quarters of 1986. I-131 detected in milk samples during this period is attributable to the nuclear accident at Chemobyl.

5.6 Listing of Missed Samples All samples were collected as scheduled except for those listed in Listing of Missed Samples, Appendix III.

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5.7 Program Modifications There were no modifications to the program in 2004.

6.0 ANALYTICAL PROCEDURES Procedures used during the period covered in this report remained essentially 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 by A. Lewis on August 31, 2004. Results of the milch animal and nearest cattle census are presented on pages 38 and 39, Section 5.0 of Appendix III.

There are no dairy farms within a 6.2-mile radius of the Dresden Nuclear Power Station.

8.0 NEAREST RESIDENCES CENSUS The nearest resident census was conducted by A. Lewis on August 31, 2004. Results of the nearest resident census are presented page 40, Section 5.0 of Appendix III.

9.0 DREDGE SPOILS RESULTS According to the Army Corp. of Engineers in August 2004, there was no dredging done during the year.

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

11.0 ERRATA DATA Errata data for 2004 is presented in Section V.

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i DRESDEN APPENDIX I DATA TABLES AND FIGURES I-1

Table 1.1-1 DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DoCKErTNUMBERS: 50-010150-237/50-249 SUMMATION OF ALL GASEOUS RELEASES b,& N1" 2"d 3" 4i Est. Total anrOu Ouarter Ouarter Ouaner Error. %

A. FISSION &ACIIVATION GASES

1. Total Release Ci 3.62E+01 2.92E+01 2.86E+01 1.23E+01 20.8% l

2. Average Release Rate for the Period

3. Percent of Technical Specification Limnit jtCilsec

% t 4.61E+00 3,71E+00 3.59E+00 L

1.S5E+00 B. IODINES

1. Total Iodine-131 Ci 8.10E-04 8.82E-04 8.79E-04 5.17E-04 15.7%

2. AverageReleaseRateofl-131 forthe Period pCilsec 1.03E-04 1.12E-04 1.11E-04 6.51E-05

3. Percent of Technical Specification Limit  % * * *

4. Total lodine-131, lodine-133 and lodine-135 Ci 3.39E-03 3.94E-03 4.52E-03 1.91E-03 C. PARTICULATES

1. Particulates with half-lives >8 days Ci 1.58E-03 1.35E-03 1.53E-03 1.09E-03 21.5%

2. Average Release Rate for the Period pCitsec 2.01E-04 1.71E-04 1.93E-04 1.37E-04

3. Percent of Technical Specification Limit _ S 5 11

4. Gross Alpha Radioactivity Ci <ID <LU <1D <LULD D. TRITIUM

1. Total Release Ci 5.62E+00 I 7.07E+00 6.65E+00 4.10E+00 7.62%

2. Average Release Rate for the Period aCitsec 7.14E-01 8.99E-01 8.37E-01 5.16E-01

3. Percent of Teclmical Specification Limit  % *

• 5 The information is contained in the Radiological Impact on Man section of the report. Total airborne release data are provided which include fission and activation gases, iodines, particulates, and tritiun.

1-2

Table 1.2-1 DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DociETNuMBeRs: 50-010/50-237/50-249 SUMMATION OF ALL LIQUID RELEASES lo 2a 3r 4E FSt.

Ulia Ouarter Ouarte Q~ai~t ~Error,Oua Total A. FISSION & ACTIVATION PRODUCTS

1. Total Release (not including H-3, gses alpha) Ci 1.33E-06 7.SSE-06 <LLD 1.06E-02 17.4%

2. Average Diluted Conc. During Period pCi/mi 7.63E-10 3.76E-09 <LLD 1.65E-08

3. Percent of Technical Specification Limit  % * * *

• B. TRITIUM .

1. Total Release _ Ci_ <LLD <LLD <LLD 1.95E+01 7.89% 1

2. Average Diluted Conc. During Release pCi/mi <LLD <LLD <LLD 3.03E-05

3. Percent of Technical Specification Linit  % .

• _ _

C. DISSOLVED AND ENTRANED GASES

1. Total Release Ci <LU)D <LD l LLD l <LLD 203%o

2. Average Diluted Conc. During Period Ciml <LLD l<L LD <LLID l<LLD

3. Percent of Technical Specification Limit _* 7 *

• D. GROSS ALPHA ACTIVITY

1. Total Release Ci <LLD <LLD <LLD <LLD 5.58%

E. VOLUME OF WASTE RELEASED lL214E+OS 2A6E+05 1-64E+OS 3-77E+06 1.00%

F.rVor to dilution) itcrs I F. VOLUME OF DILUION WATER USED Liters 1.53 E+06 1.76E+06 1.17E+06 6A40E+08 5.00%1 DURING PERIODI I The information is contained in the Radiological Inpact on Man section of the report.

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Table 3.1-1 DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 DocKETNuMBER: 50-010 RADIOLOGICAL IMPACT ON MAN*

UNIT I

1. Airborne Releases Maximum Doses from Airbome _Q Releases

_urel . ,_ Yearly Obj. Anmual Dose Quarterly 1 QTR 4b QTR 28d QTR 3rd QTR

. Obj.

Gamma Air 5.0 mrad 0.00E+00 (e) 0.00o+00 (c) 000E+00 (e) 0.00E+00 (e) 10.0 mrad 0.00E+00 (e)

Beta Ar 10.0 mrad O.OOE+00 (e) O.OOE+00 (e) 0.OOE+00 (e) 0.00E+00 (e) 20.0 mrad O.OOE+00 (e)

Total Body 2.5 mrem O.OOE+00 (e) O.OOE+OO (e) 0.OOE+00 (e) O.OOE+00 (e) 5.0 mrcm 0.00+00 (e)

(Srem) 7.5 rnrem O.OOE+OO (e) 0.00E+00 (e) O.OOE+00 (e) O.OOE+00 (e) 15.0 mrem O.OOE+00 (e)

Organ. 7.5 mrem 2.30E-06 (ct) 9.68E-06 (a) 1.12E-05 (c) 7.86E-04 (ic) 15.0 mnrem 8.01 E-04 (c)

Liver (i) Liver Critical Organ Lung GILLU Liver Bone (c)

UNIT 2

2. Airborne Releases Maximum Doses from Airborne Releases _

Qurel_r ,l ,t _Q___

Quarterly 2ad QTR 4"' QTR Yearly Obj. Annual Dose Ob;.

tQT 3rd QTR Gamna Air 5.0 mrad 1.51E04 (e) 1.19E-04 (c) 8.54E-05 (e) 7.88E-05 (e) 10.0 mrad 435E-04 (e)

(m rad) _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Btrad) r 10.0 mrad 1.12E-05 (e) 9.02E-06 (c) 7.46E-06 (e) 4.98E-06 (e) 20.0 mnrad 3.27E-05 (e)

Total Body 2.5 mrern 1.27E04 (e) 8.99E-05 (c) 6.44E-05 (e) 5.95 E-05 (c) 5.0 nrem 3.28E404 (c)

(111remn) _____ _ _ __ _ _

(mren) 7.5 mran 1.27E-04 (ce) 9.965E.05 (e) 7.2 1E-05 (e) 6.51E-OS (e) 15.0 mcrnm 3.63E-04 (e)

(mre) 7.5 mrncm 5.14E-04 (c) 1.63 E-03 (c) 3.69E-03 (c) 2.71 E-03 (c) 15.0 mrem 839E-03 (c)

Tyod Tyri) hri CmritclOgnLug Critical Organ Lung I Thyroid Thyroid I Thyroid Thyroid

• The doses reported include abnormal and unmonitored rleases. These doses are the highest among the four analyzed receptors as described in parentheses [(i)-in4t, (c)=child, (t)-teenager, (a)=adult, (e)-every receptor has the same value].

1-4

Table 3.1-1 (continued)

DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 RADIOLOGICAL IMPACT ON MAN*

UNIT 3

3. Airborne Releases Maximum Doses from Airborne Releases QT Quel .

Quarterly  ! 3rd QTR Yearly Obj. Annual Dose 1a QTR 2' QTR 41 QTR Obj.

Gamma Air 5.0 mrnd 6.28E404 (e) 4.35E-04 (e) 4.20E-04 (e) 1.91E-04 (e) 10.0 rnrad 1.67E-03 (e)

(nirad)

Beta Air 10.0 rnrad 4.21E405 (e) 2.92E.OS (e) 3.17E4-5 (e) 1.17E-05 (e) 20.0 mrad 1.ISE-04 (e)

(mrad)__ _ _ _ ___ _ _ _ _ __ _ _ _ _ _

Total Body 2.5 mrem 4.74E-04 (e) 3.28E-04 (e) 3.17E-04 (e) 1.44E-04 (e) 5.0 nrem 126E-03 (e)

Skin 7.5 nrem 5.21 E-04 (e) 3.60E 04 (e) 3.5 1E-04 (e) I.S8E-04 (c) I5.0 nurem 1.39E03 (c) wMrem ___

Organ 7.5 mnrem 124E-03 (c) 6.71E-03 (c) 4.81E-03 (c) 2.92E.03 (c) 15.0 nrcm 1.55E-02 (c)

(mnrem) .

Critical Organ Thyroid Thyroid Thyroid Thyroid Thyroid Critial Ogan Tyro.

• The doses reported include abnormal and unmonitored releases. These doses are the highest among the four analyzed receptors as described in parentheses [(l)-infant, (c)-child, (t)-teenager, (a)-adult. (e)-every receptor has the sarme valueJ.

I-5

Table 3.2-1 DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through December 2004 RADIOLOGICAL IMPACT ON MAN UNIT I

1. Liquid Releases Maximum Doses from Aquatic Effluents d A

3 Quarterly Yearly Obj. Annuatl Dose 2' QTR 3rd QTR 40 QTR Obj.

Total Body 15 mrem None None None None 3.0 mnrem None Orga 5.0 mrem None None None None 10.0 mfrem None Critical Organ None None None None None UNIT 2

2. Liquid Releases Maximum Doses from Aquatic Effluents Quarterly I1 QTR i' QTR 3'd QTR 46 Q Yearly Obj. Annual Dose

_ _ _ __ _ _ Obi. 2_ _ _ _ _ _ _ _ _ _ _ _ _ _ Q T Total Body 1.5 mrem 4.26E.07 (a) 3.892-09 (c) O.OOE+00 (e) 9.06E4-5 (c) 3.0 mrem 9.07E-0S (c)

Organ 5.0 mrem 6.67E407 (t) 5.S2E-08 (a) O.OOE+OO (e) 1.19E-04 (a) 10.0 mrem 1.19E-04(a)

Critical Organ Liver GILLI None GILLI GILLI UNIT 3

3. Liquid Releases Maximum Doses from Aq atic Effluents Quarterly l" QTR 2w QTR 3 fd QTR 4 1hQTR Yearly Obj. Annual Dose

___ _ _ O bi. _ _ _ _ _ _ _ .__

Tot"l Body 1.5 nurcm 0.OOE+00 (e) O.OOE+0O (e) t.33E-04 (c) 9.41 E-OS (c) 3.0 narem 2.27E-04 (c)

(rnem)

Organ S.0 mrem 0.OOE+OO (e) O.OOE+OO (e) 1.33B.04 (c) 1.39E-04 (a) 10.0 rnrem 2.5 1E04 tc)

(Iern).

Critical Organ None None GlLLI Liver

______________________________________________ L

______________________ .L -. .... I

• The doses reported include abnormal and unmonitored releases. These doses are the highest among the four analyzed receptors as described in parentheses [(i)=infant, (c)-child, (t)-teenager, (a)-adult, (e)-every receptor has the same value].

I-6

Table 3.3-1 DRESDEN STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/04 TO 12/31/04 CALCULATED 04/06/05

1. 10 CFR 20.1301 (a)(1) Compliance Total Effective Dose Equivalent, mrem/yr 7.93E-04 10 CFR 20.1301 (a)(1) limit mrem/yr 100.0

% of limit 0.00 Compliance Summary - iLOCFR20 let 2nd 3rd 4th  % of Qtr Qtr Qtr Qtr L.imit TEDE 2.31E-06 9.14E-06 6.95E-06 7.78E-04 0.0'D RESULTS BASED UPON: ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 I-7

Table 3.3-1 (continued)

DRESDEN STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/04 TO 12/31/04 CALCULATED 04/06/05

2. 10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit  % of (mrem) (mrem) Limit Whole Body Plume 0.OOE+00 (DDE) SkyBh:ine 0.00E+00 Groun d 7.81E-04 Total 7.81E-04 25.0 0.00 Organ Dose Thyro.:id 1.04E-05 75.0 0.00 (CDE) Gonads 3 1.17E-05 25.0 0. 00 BreaBt 1.04E-05 25.0 0.00 Lung 1.09E-05 25.0 0.00 MarrovI 1.10E-05 25.0 0.00 Bone 1.05E-0S 25.0 0.00 Remair tder 1.25E-05 25.0 0.00 CEDE 1.15E-05 TEDE 7.93E-04 100.0 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-8

Table 3.3-1 (continued)

DRESDEN STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/04 TO 12/31/04 CALCULATED 04/06/05

1. 10 CFR 20.1301 (a)(1) Compliance Total Effective Dose Equivalent, mrem/yr 3.36E+00 10 CFR 20.1301 (a)(1) limit mrem/yr 100.0

• of limit 3.36 Compliance Summary - ' LOCFR20 1st 2nd 3rd 4th 1 of Qtr Qtr Qtr Qtr L imit TEDE 1.08E+00 8.75E-01 8.31E-01 5.79E-01 3.31 RESULTS BASED UPON: ODCM-ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-9

Table 3.3-1 (continued)

DRESDEN STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/04 TO 12/31/04 CALCULATED 04/06/05

2. 10 CFR 20.1301 {d)/40 CFR 190 Compliance Dose Limit  % of (mrem) (mrem) Limit Whole Body Plume 3.28E-04 (DDE) Skyah. ine 3.36E+00 Groun(d 1.69E-03 Total 3.36E+00 25.0 13.45 Organ Dose Thyro:id 3.54E-03 75.0 0.00 (CDE) Gonadi s 2.23E-03 25.0 0.01 Breast t 2.19E-03 25.0 0.01 Lung 2.23E-03 25.0 0.01 Marrov 2.22E-03 25.0 0.01 Bone 2.22E-03 25.0 0.01 Remair nder 2.30E-03 25.0 0.01 CEDE 2.28E-03 TEDE 3.36E+00 100.0 3.36 RESULTS BASED UPON: ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-10

Table 3.3-1 (continued)

DRESDEN STATION UNIT THREE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/04 TO 12/31/04 CALCULATED 04/12/05

1. 10 CFR 20.1301 (a)(1) Compliance Total Effective Dose Equivalent, mrem/yr 3.67E+00 10 CFR 20.1301 (a) (1) limit mrem/yr 100.0

% of limit 3.67 Compliance Summary - :LOCFR20 1st 2nd 3rd 4th  % of Qtr Qtr Qtr Qtr L imit TEDE 1.OOE+00 1.02E+00 1.09E+00 5.56E-01 3.6 7 RESULTS BASED UPON: ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 I-11

Table 3.3-1 (continued)

DRESDEN STATION UNIT THREE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/04 TO 12/31/04 CALCULATED 04/12/05

2. 10 CPR 20.1301 (d)/40 CFR 190 Compliance Dose Limit  % of (mrem) (mrem) Limit Whole Body Plume 1.26E-03 (DDE) SkyshiLne 3.66E+00 Grounid 4.70E-03 Total 3.67E+00 25.0 14.66 Organ Dose Thyro:Ld 6.OOE-03 75.0 0.01 (CDE) Gonadi 4.01E-03 25.0 0.02 Breast t 3.92E-03 25.0 0.02 Lung 4.15E-03 25.0 0.02 Marrovw 3.98E-03 25.0 0.02 Bone 3.95E-03 25.0 0.02 Remairider 4.24E-03 25.0 0.02 CEDE 4.13E-03 TEDE 3.67E+00 100.0 3.67 RESULTS BASED UPON: ODCM ANNEX REVISION 1.1 JULY 1994 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 I-12

Table 3.4-1 Dresden Station Unit 1 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 2004 TYPE OF DOSE FIRST QUARTER SECOND QUARTER THIRD tUARTER FOURTH WUARTER ANNUAL GAffHA AIR (mrad) O.OOOE+O0( N ) 0.OOOE+OOC N ) O.OOOE+00{ N ) O.OOOEOO( N ) O.OOOE+00( N )

BETA AIR (mrad) O.OOOE+00( N ) O.OOOE+O0( N ) O.OOOE+00( N ) Q.OOOE+00( N ) D.OOOE400( N )

WHOLE BODY (mrem) 2.094E-06(ESE) 3.220E-06(SSE) 1.192E-06(ENE) 2.902E-04(SSE) 2.960E.D4(SSE)

SKIN (mrem) 2.457E-06(ESE) 3.787E-06(SSE) 1.395E.06(ENE) 3.394E-04(SSE) 3.462E-04(SSE)

ORGAN (mrem) 4.272E-08( E ) 2.444E-07( N ) 1.161E-07(SSE) 4.470E.06UJNW) 4.471E-06(NNW)

CRITICAL PERSON Teenager Teenager Teenager Child Child CRITICAL ORGAN Lung Lung Lung Bone Bone COMPLIANCE STATUS 10 CFR 50 APP. I 10 CFR 50 APP.1 TYPE OF DOSE QUARTERLY OBJECTIVE 2 OF APP. I YEARLY OBJECTIVE X OF APP. I GAMMA AIR (mrad) 5.0 0.00 10.0 0.00 BETA AIR (mrad) 10.0 0.00 20.0 0.00 IVHOLE BODY (mrem) 2.5 0.01 5.0 0.01 SKIN (mrem) 7.5 0.00 15.0 0.00 ORGAN (mrem) 7.5 0.00 15.0 0.00 CRITICAL PERSON Child Child CRITICAL ORGAN Bone Bone Calculation used release data from the following:

Unit 1 - Ground Unit I - Vent Unit 1 - Chimney Date of calculation: 4/1112005 1-13

Table 3.4-1 (continued)

Dresden Station - Unit 2 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 2004 TYPE OF DOSE FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER ANNUAL GAMMA AIR (mrad) 2.27DE-04( E ) 1.780E-04( N ) 2.36DE.04( N ) 1.430E-04(NNW) 7.710E-04( N )

BETA AIR (mrad) 4.350E-05( E ) 2.760E-05(WS14) 2.690E*05( N ) 1.590E.05(WSW) 9.71DE-05( E )

WHOLE BODY (mrem) 1.622E.04(SSE) 1.482E.04(NNE) 1.313E.04(NNE) 1.904E-04(SSE) 6.403E-04(SSE)

SKIN (mtrem) 2.187E.04(SSE) 1.896E.04(SSE) 1.687E*04(NNE) 2.294E.04(SSE) 7.92DE-04(SSE)

ORGAN (mrem) 1.392E.05(ESE) 1.092E-O5(SSU) 2.2B7E-05(SSE) -3.320E-05(SSE) 7.065E-05( N )

CRITICAL PERSON Teenager Child Teenager Child Teenager CRITICAL ORGAN Lung Thyroid Lung Thyroid Lung COMPLIANCE STATUS 10 CFR 50 APP. I 10CFR 50 APP.I TYPE OF DOSE QUARTERLY OBJECTIVE X OF APP. I YEARLY OBJECTIVE S OF APP. I GAJiA AIR (mrad) 5.0 0.00 10.0 0.01 BETA AIR (mrad) 10.0 0.00 20.0 0.00 WHOLE BODY (mrem) 2.5 0.01 5.0 0.01 SKIN (mrem) 7.5 0.00 15.0 0.01 ORGAN (mrem) 7.5 0.00 15.0 0.00 CRITICAL PERSON Child Teenager CRITICAL ORGAN Thyroid Lung Calculation used release data from the following:

Unit 2 - Ground Unit 2 - Vent Unit 2 -'Chimney Date of calculation: 4/11/2005 1-14

Table 3.4-1 (continued)

Dresden Station - Unit 3 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 2004 TYPE OF DOSE FIRST OQARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER ANNUAL GAMMA AIR (mrad) 9.470E.04( E ) '6.480E.04( N ) 1.160E.03( N ) 3.480E.04(NNW) 3.066E.03( N )

BETA AIR (mrad) 1.650E.04( E ) 8.9DOE-05(W514) 1.14DE.04( N ) 3.680E-O5(WSW) 3.466E.04( E )

WHOLE BODY (mrem) .7.245E-04(SSE) 4.550E-04CNNE) 4.454E-04(NNE) S.324E.04(SSE) 2.079E-03(SSE)

SKIN (mreii) 8.671E-04(SSE) 5.819[-04(SSE) 5.845E-04(NNE) 6.386E-04(SSE) 2.577E.03(SSE)

ORGAN (mrem) 4.090E-05(ESE) 2.935E-05(SSW) 2.989E-05(SSW) 4.090E-05( N ) 1.211E.04( N )

CRITICAL PERSON Child Child Child Teenager Teenager CRITICAL ORGAN Thyroid Thyroid Thyroid Lung Lung COMPLIANCE STATUS 10 CFR SOAPP. I 10 CFR SO APP.I TYPE OF DOSE QUARTERLY OBJECTIVE s OF APP. I YEARLY OBJECTIVE s OF APP. I GAMMA AIR (mrad) 5.0 0.02 10.0 0.03 BETA AIR (mrad) 10.0 0.00 20.0 0.00 WHOLE BOOY (Erem). 2.5 0.03 5.0 0.04 SKIN (mrem) 7.5 0.01 15.0 0.02 ORGAN (mrem) 7.5 0.00 15.0 0.00 CRITICAL PERSON Child Teenager CRITICAL ORGAN Thyroid Lung Calculation used release data from the following: Data Recovery 99.2%

Unit 3 - Ground (priority parameters)

Unit 3 - Vent Unit 3 - Chimney Date of calculatIon: 4/11/2005 1-15

Figure 5.0-1 DRESDEN o 5 lO MlI a to Dresden Station Units 1,2 & 3 20 omgwn Y --- i Fixe Air Sampling and ELD Sites, Otr Rig TLD Locations and Milk Location

'P Air Sampilg Lo~tkon D01 Onsite Station I D-12 (C) Lisbon M¢2 Onsite Station 2 D-13 Minoolea a TLD Lacatlmi D-03 Onsite Station 3 D-I 4 Channahon D.04 Collins Road D-45 McKinley Woods

• Milk D.07 Clay Products D-53 Grundy County Road

-08 Prairie Parks D-25 Biros Farm (Milk)

D-10 Goose Lake Village 1-16

Figure 5.0-2 DRESDEN 0 t SMOMr Dresden Station Units 1,2 & 3 Inner Ring TLD Locations

• Fith Fish, Water and Sediment Locatons MD -23Thorsen Well sediment D-27 Dresden Lock & Dam 4.

Water ~D-28 Dresden Pool of Illinois River D-35 Dresden Lock & Dam 346 DcsPJaincs River, Upstream D51 Dresden Loci, & Damn NS2 DesPlaines River L-54 Kankakee River, Upstream 1-17

TABLE 5.0-1 C.).

Dresden Station Radiological Environmental Monitoring Locations

- 2-E .1) .

V)CIO 14 -

D-01 Onsite Station 1 D-02 Onsite Station 2 D-03 Onsite Station 3 D-04 Collins Road D-07 Clay Products D-08 Prairie Parks D-10 Goose Lake Village D-12 Lisbon D-13 Minooka D-14 Channahon D-23 Thorsen WVell D-25 Vince Biros Farm D-27 Dresden Lock & Dam D-28 Dresden Pool at Illinois River D-35 Dresden Lock & Dam D-46 DesPlaines River, Upstream D-45 McKinley Woods Road D-51 Dresden Lock & Dam D-52 DesPlaines River.

D-53 Grundy County Road D-54 Kankakee River D-Quad I D-Quad 2 D-Quad 3 D-Quad 4 D-Control CENSUS Dairy Residence Cattle I-18

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

1. AIR SAMPLERS Distance Direction Sector Site Codea Location (miles)

D-01 Onsite Station 1 0.6 NW Q D-02 Onsite Station 2 0.3 NE C D-03 Onsite Station 3 0.4 S J D-04 Collins Road 0.9 W N D-07 Clay Products 2.0 S 3 D-08 Prairie Parks 4.0 SW L D-10 Goose Lake Village 3.8 SSW K D-12 (C) Lisbon 10.0 NV Q D-13 Minooka 4.5 N A D-14 Channabon 3.5 NE C D-45 McKinley Woods Road 1.5 ENE D D-53 Grundy County Road 2.1 SSE H

2. TLDs

a. Same as No. 1.

b. Special TLD Locations Distance Direction Sector Site Code (miles)

Inner Ring D-101-1,2 1.0 N A D-102-1,2 1.3 NNE B D-103-1,2 1.2 NE C D-104-1,2 1.5 ENE D D-105-1,2 1.4 E E D-106-1,2 0.9 ESE F D-107-1,2 1.3 SE G D-108-1,2 - 1.9 SSE H D-109-1,2 0.8 S 3 D-110-3,4 0.8 SSW K D-111-1,2 0.6 SW- L a Control (reference) locations are denoted by a "C" after site code. All other locations are indicators.

1-19

TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

2. TLDs (cont.)

b. Special TLD Locations (continued)

Distance Direction Sector Site Code (miles)

Inner Ring (continued)

D-112a-1,2 0.8 WSW M D-I 13-1,2 0.9 W N D-1 14-1,2 1.0 WNWV P D-I 15-1,2 0.8 NW Q D-I 16-1,2 1.0 NNW R Outer Ring D-201-1,2 4.5 N A D-202-1,2 5.0 NNE 13 D-203-1,2 4.5 NE C D-204-1,2 5.0 ENE D D-205-1,2 4.2 E E D-206-1,2 3.5 ESE F D-207-1,2 4.5 SE G D-208-1,2 5.0 SSE H D-209-1,2 5.0 S J D-210-1,2 4.8 SSW K D-211-1,2 5.0 SW L D-212-3,4 6.0 WSW M D-213-1,2 4.5 W N D-214-1,2 4.5 WVNW P D-215-1,2 5.1 NW Q D-216-1,2 4.8 NNW R

3. MILK Distance Direction Sector Site Codea Location (miles)

D-25 (C) Vince Biros Farm 11.5

• SW L a Control (reference) locations are denoted by a "C" after site code. All other locations are indicators.

I-20

TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

4. GROUND/WELL WATER Distance Direction Sector Site Codea Location (miles)

D-23 Thorsen Well 0.7 S J D-35 Dresden Lock & Dam 0.5 NW Q

5. SURFACE WATER Distance Direction Sector Site Code Location (miles)

D-51 Dresden Lock & Dam 0.5 NW Q D-52 (C) DesPlaines River 0.9 ESE F D-54 (C) Kankakee River 8.5 SE G

6. FISH Distance Direction Sector Site Code Location (miles)

D-28 Dresden Pool of Illinois 0.5 NW Q River D-46(C) DesPlaines River, Upstream 0.9 E E

7. SEDIMENT Distance Direction Sector Site Code Location (miles)

D-27 Dresden Lock & Dam 0.5 NW Q

8. VEGETATION Distance Direction Sector Site Code Location (miles)

Quad 1 Chris Locknar 2.8 NE C Quad 2 Robert Pagliano 3.2 SSE H Quad 3 Jim Bloom 3.9 SSW K Quad 4 J.D.Carmichael 1.6 NNW R Control (C) Glasscock Farm 12.8 ENE D a Control (reference) locations are denoted by a "C" after site code. All other locations are indicators.

I-21

TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Codc' Site Frequency Analysis of Analysis 1.Airborne Onsite, Nearficld and Control Filter exchange Gross Beta Weekly Particulates weekly Gamma Isot. Quarterly Composite D-O01 Onsite I (or ifwckly gross belain a D-02 Onsite 2 sampleexceeds 5X the D-03 Onsite 3 average concentrjticn or D-04 Collins Road preceding calendar quarter).

D-07 Clay Products D-12 (C) Lisbon D-45 McKinley Woods Road D-53 Grundy County Road Far Field Gamma Isot. Itgross beta ina sample exceeds 10 times the eatrlymean ofcontrl D-08 Prairie Parks saimpes andradioactivity is D-10 Goose Lake Village confirmed ashaving its origins in D-13 Minooka airborne eflluents released from D-14 Channahon the stati

2. Airborne Sameas 1. Canisterexchange 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. D-101-1,2 Inner Ring 102-1,2 103-1,2 104-1,2 105-1,2 106-1,2 107-1,2 108-1,2 109-1,2 110-3,4 111-1,2 112a-1,2 113-1,2 114-1,2 115-1,2 116-1,2

c. D-201-1,2 Outer Ring 202-1,2 203-1,2 204-1,2 205-1,2 206-1,2 207-1,2 Control (background) locations are denoted by a 'C" in this column. All other location are indicators.

I-22

TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Code' Site Frequency Analysis of Analysis

4. TLDs (continued)

D-208-1.2 Outer Ring Quarterly Gamma Quarterly 209-1,2 210-1,2 211-1,2 212-3,4 213-1.2 214-1,2 215-1.2 216-1.2

5. Milk D-25 (C) Biros Farm Biweekly: 1-131 Biweekly:

May-October Gamnma Isot. May-October Monthly. Monthly-November-April November-April

6. Vegetables Quad 1 Chris Locknar Annually - two varieties Gamma Isot. Annually Quad2 RobertPagliano fromeachlocationas 1-131 Annually Quad 3 Jim Bloom available at harvest.

Quad 4 J.D. Carmichael Control Glasscock Farm

7. Ground/Well D-23 Thorsen Well Quarterly Gamna IsoL Quarterly Water D-35 Dresden Lock & Dam Tritium

8. Surface Water D-5 I Dresden Lock & Weekly Gross Beta Monthly composite.

Dam Gamma Isot. Monthly composite.

D-52 (C) DesPlaines River, Tritium Quarterly composite.

Upstream D-54 (C) Kankakee River, Upstream

9. Fish (at least D-28 Dresden Pool Two tines/year Gamma Isot. Two times/year on two species) of Illinois River edible portions only.

D46 (C) DesPlaines River, Upstream

10. Sediments D-27 Dresden Lock & Semiannually Gamma Isot. Semiannually Dam II. Land Use Census Milch Animals

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

or equivalent counting technique.

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

I-23

TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequcncy Sample Media Code Site Frequency Analysis of Analysis II. Land Use Census (continued)

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.

2. Feed and chop only.

3. Pasture and fecd:

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.

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

I-24

Table 5.0-3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Dresden Nuclear Power Station Docket No. 50-10. 50-237. 50-249 LocationofFacility Grundy. Ilinois Reporting Period Ist Ouarter 2004 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-(Units) Analyses LLD Meana Quarterly Mean Range Meana routine Range Range Results Air Particulates Gross Beta 91 0.01 0.028 (78n8) D-07, Clay Products, .030 (13/13) 0.027 (13/13) 0 (pCi/r 3 ) (0.014-0.047) 2.0 mi. S, Sector J 0.016-0.044) (0.015-0.039)

Gamma Spec.

7 Cs-134 0.05 <LLD - <LLD 0 Cs-137 0.06 <LLD - - <LLD 0 Other Gammas 0.01-0.04 <LLD - - <LLD 0 Airborne Iodine (pCi/m3 ) 1-131 49 0.07 <LLD - cLLD 0 Milk 1-131 3 1 None - - <LLD 0 (pCi/L)

Gamma Spec. 3 Cs-134 15 None - - <LLD 0 Cs-137 18 None - - <LLD 0 Ba-140 60 None - <LLD 0 La-140 15 None - - <LLD 0 Other Gammas 10-15 None - - <LLD 0 Surface Water Gross Beta 9 4 5.0 (3/3) D-52. DesPlaines River, 7.6 (2/3) 7.6 (2/6) 0 (pCi/L) (4.5-5.8) 0.9 mi. ESE Sector F (6.0-9.1) (6.0-9.1)

Gamma Spec. 9 Cs-134 15 <LLD - <LLD 0 Cs-137 18 <LLD - <LLD 0 Other ODCM-Required 15-60 <LLD - <LLD 0 Gammas Tritium 3 200 <LLD - <LLD 0 Well Water Tritium 2 200 899 (1/2) D-23 Thorsen Well 899 (1/1) None 0 (pCi/L) 0.7 mi. S, SectorJ Gamma Spec. 2 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM-Required 15-60 <LLD None 0 Gammas Gamma Background Gamma Dose 88 9.7 25.9 (86186) D-201-1,2b, 4.5 mi. N 32.0 (1/1) 23.0 (2/2) 0

('rLDs) (mR/Qtr.) (20.0-32.0) Sector A (21.0-25.0) a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

bLocations D-201-1 and 201-2 had identical results of 32.0 mR. Both are detailed in this summary.

1-25

Table 5.0-4 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

NameofFacility DresdenNuclearPowerStation DocketNo. 50-10.50-237. 50-249 Location of Facility Grundy. Illinois Reporting Period 2nd Ouarter 2004 (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 88 0.01 0.018 (74/75) D-07, Clay Products, 0.025 (13113) 0.017 (13/13) 0 Particulates Beta (0.010-0.11) 2.0 mi. S, Sector J (0.012-0.11) (0.011-0.022)

(pCi/m 3 )

Gamma Spec. 7 Cs-134 0.05 <LLD <LLD 0 Cs-137 0.06 <LLD <LLD 0 Other Gammas 0.01-0.04 <LLD <LLD 0 Airbome Iodine 1-131 42 0.07 <LLD - - <LLD 0 (pCi/m3 )

Milk 1-131 5 1 None - - <LLD 0 (pCi/L)

Gamma Spec. 5 Cs-134 15 None - - <LLD 0 Cs-137 18 None - - <LLD 0 Ba-140 60 None - - <LLD 0 La-140 15 None - - <LLD 0 Other Gammas 10-15 None - - <LLD 0 Fish Gamma Spec. 4 (pCi/g wet)

Cs-134 0.13 <LLD - - <LLD 0 Cs-137 0.15 <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. I Sediments (pCi/g dry) 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.

1-26

Table 5.0-4 (continued)

RADIOLOGICAL ENVIRONMENTALMONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Dresden Nuclear Power Station Docket No. 50- 10. 50-237. 50-249 Location of Facility Grundy. Illinois Reporting Period 2nd Quarter 2004 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Mean' Quarterly Mean Range Meana Results Range Range Surface Water Gross Beta 9 4 4.3 (3/3) D-52, DesPlaines 5.2 (3/3) 5.1 (4/6) 0 (pCi/L) (4.0-4.6) River, 0.9 mi. ESE, (4.3-6.5) (4.3-6.5)

Gamma Spec. 9 Sector F Cs-134 15 <LLD - <LLD 0 Cs-137 18 <LLD - <LLD 0 Other ODCM-Required 15-60 <LLD - - <LLD 0 Gammas Tritium 3 200 <LLD - - <LLD 0 Well Water Tritium 2 200 940 (1/2) D-23, Thorsen Well 940 (1/1) None 0 (pCiIL) 0.7 mi. S. Sector J Gamma Spec. 2 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM-Required 15-60 <LLD None 0 Gammas Gamma Gamma Dose 88 9.7 22.9 (86/86) D- 2 0 1- 1,2b, 4.5 mi N, 28.0 (1/1) 21.5 (2/2) 0 Background (18.0-28.0) Sector A (20.0-23.0)

(mR/Qtr.)

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

b Locations D-201-1, 201-2 and 214-1 had identical results of 28.0 mR. D-201-1 and 201-2 are detailed in this summary.

I-27

Table 5.0-5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Dresden Nuclear Power Station Docket No. 50-10. 50-237. 50-249 Location of Facility Grundy. Illinois Reporting Period 3rd Ouarter 2004 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Air Gross Beta 90 0.01 0.023 (76/77) D-03b, Onsite Station 0.024 (12/12) 0.023 (13/13) 0 Particulates (0.015-0.031) 3, 0.6 mi. S, Sector J (0.020-0.031) (0.014-0.034)

(pCi/m 3 ) Gamma Spec. 7 Cs-134 0.05 <LLD -<LLD 0 Cs-137 0 0.06 <LLD LLD 0 Other Gammas

_ 0.01-0.04 <LLD - <LLD 0 Airborne Iodine 1-131 49 0.07 <LLD - - <LLD 0 3

(pCi/rn ) _ _ _ _ _ _ _ _

Milk 1-131 7 1 None - - <LLD 0 (pCi/L)

Gamma Spec. 7 Cs-134 15 None - - <LLD 0 Cs-137 18 None - - <LLD 0 Ba-140 60 None - - <LLD 0 La-140 15 None - - <LLD 0 Other Gammas 10-15 None - <LLD 0 Vegetation 1-131 12 0.06 <LLD - - <LLD 0 (pCilg wet)

Gamma Spec. 12 Cs-134 0.06 <LLD - - <LLD 0 Cs-137 0.08 <LID - <LLD 0 Other Gammas 0.0140.10 <LLD . <LLD 0 Surface Water Gross Beta 9 4 5.7 (313) D-52 DesPlaines 6.9 (3/3) 6.3 (416) 0 (pCi/L) (4.5-6.8) River (5.2-7.8) (4.3-7.8) 0.9 mi. ESE, Sector F Gamma Spec. 9 Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCM-Required 15-60 <LLD - <LLD 0 Gammas Tritium 3 200 1,035 (11) D-51, Dresden Lock 1,035 (1/1) <LLD 0

& Dam, 0.5 mi. NW, Sector Q a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

bLocations D-03, D-07 and D-45 had identical means of 0.024 pCilm3. Only D-03 is detailed in this summary.

I-28

Table 5.0-5 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

NameofFacility DresdenNuclearPowerStation DocketNo. 50-10. 50-237.50-249 Location of Facility Grundy.. Illinois Reporting Period 3rd Quarter 2004 (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 2 200 849 (1/2) D-23, Thorsen Well 849 (1/1) None 0 (pCi/L) 0.7 mi. S, Sector J Gamma Spec. 2 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM-Required 15-60 <LLD - - None 0 Gammas Gamma Gamma Dose 88 9.7 22.2 (86/86) D-215-2. 5.1 mi. NW, 30.0 (1/1) 19.0 (2/2) 0 Background (17.0-30.0) Sector Q (18.0-20.0)

CMDs)

(mRJQtr.)

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

1-29

Table 5.0-6 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

NameofFacility DresdenNuclearPowerStation DocketNo. 50-10. 50-237.50-249 Location of Facility Grundy. Illinois ReportingPeriod 4thOuarter 2004 (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 98 0.01 0.025 (84/84) D-07, Clay Products, 0.028 (14/14) 0.025 (14/14) 0 Particulates Beta (0.015-0.042) 2.0 mi S,Sectorl (0.016-0.042) (0.018-0.033)

(pCi/m 3 ) Gamma Spec. 7 Cs-134 0.05 <LLD - <LLD 0 Cs-l 37 0.06 <LLD - <LLD 0 Other Gammas 0.01-0.04 <LLD - <LLD 0 Airborne Iodine 1-131 49 0.07 <LLD - - <LLD 0 (pCi/mi3 )

Milk 1-131 4 1 None - <LLD 0 (pCi/L)

Gamma Spec. 4 Cs-134 15 None - - <LLD 0 Cs-137 18 None - - <LLD 0 Ba-140 60 None - <LLD 0 La-140 15 None - - <LLD 0 Other Gammas 10-15 None - - <LLD 0 Fish Gamma Spec. 4 (pCi/g wet)

Cs-134 0.13 <LLD - - <LLD 0 Cs-137 0.15 <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. I Sediments (pCi/g dry) 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.

I-30

Table 5.0-6 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility Dresden Nuclear Power Station Docket No. 50-10. 5D-237. 50-249 LocationofFacility Grundy. Illinois ReportingPeriod 4thOuarter2004 (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 9 4 6.1 (2/3) D-52, DesPlaines 7.1 (3/3) 6.4 (4/6) 0 (pCi/L) (4.6-7.5) River, (4.8-9.0) (4.0-9.0)

Gamma Spec. 9 0.9 mi. ESE, Sector F Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCM-Required 15-60 <LLD <LLD 0 Gammas Tritium 3 200 778 (1/1) D-51, Dresden Lock 778 (1/1) <LLD 0

& Dam.

0.5 mi. NW, Sector Q Well Water Tritium 2 200 684 (1/2) D-23, Thorsen Well, 684 (1/1) None 0 (pCi/L) 0.7 mi. S. Sector J Gamma Spec. 2 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM- 15-60 <LLD None 0 Required Gammas Gamma Gamma Dose 87 9.7 27.2 (85/85) D-201-2, 4.5 mi. N, 33.0 (1/1) 26.0 (2/2) 0 Background (23.0-33.0) Sector A (25.0-27.0)

(mR/Qtr.)

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

1-31

DRESDEN APPENDIX II METEOROLOGICAL DATA H-1

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Extremely Unstable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 8 0 10 NNE 4 0 6 NE 2 0 7 ENE 6 0 9 E 6 0 7 ESE 3 0 3 SE 2 1 3 SSE 5 10 20 S 2 4 18 SSW 11 5 19 SW 0 0 0 WSW 3 0 9 W 10 0 16 WNW 19 0 23 NW 9 6 21 NNW 14 2 17 Variable 0 0 0 Total 0 38 104 28 18 0 188 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-2

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Moderately Unstable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1 5 24 9 6 1 46 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sltability class: 0 Hours of missing stability measurements in a:11 stability classes: 0 II-3

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Slightly Unstable - l5OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 3 NNE 0 2 NE 2 2 ENE 2 2 E 0 1 ESE 3 4 SE 0 SSE 3 S 2 7 SSW 1 3 SW 0 4 WSW 1 2 W 1 1 WNW 5 13 NW 3 5 NNW 2 5 Variable 0 0 Total 0 13 24 15 7 0 59 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-4

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Neutral - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 15 9 0 28 0 0 NNE 2 12 14 1 29 0 0 NE 1 17 36 1 55 0 0 ENE 3 30 31 0 64 0 0 E 2 16 28 16 62 0 0 ESE 2 14 55 15 86 0 0 SE 4 4 10 8 26 0

SSE 1 1 13 11 1 27 S 1 13 24 29 2 1 70 SSW 3 8 32 21 7 1 72 SW 1 1 18 22 0 0 42 WSW 4 3 6 9 1 2 25 W 2 12 49 24 3 1 91 WNW 4 27 50 21 7 0 109 NW 3 18 33 10 1 0 65 NNW 4 35 46 11 0 0 96 Variable 0 0 0 0 0 0 0 Total 41 226 454 199 22 5 947 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-5

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Slightly Stable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 20 5 0 28 NNE 6 13 1 0 20 NE 3 22 7 0 32 ENE 5 17 0 0 22 E 4 15 4 0 23 ESE 9 21 17 2 49 SE 9 6 15 1 31 SSE 10 21 20 14 65 S 7 23 25 10 67 SSW 5 15 24 10 57 SW 2 12 16 9 40 WSW 2 6 13 5 26 W 4 36 36 21 97 WNW 13 .33 32 6 84 NW 14 16 22 2 54 NNW 16 21 9 0 46 Variable 0 0 0 0 0 Total 112 297 246 80 6 0 741 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-6

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Moderately Stable - 150Ft-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total

_________ 2____

N 2 0 0 0 0 NNE 2 0 0 0 0 NE 0 0 0 0 0 0 ENE 0 0 0 0 0 0 E 1 1 0 0 0 ESE 10 18 0 0 0 0 SE 4 8 1 0 0 0 SSE 3 5 2 0 0 0 S 5 10 0 0 0 0 SSW 7 12 6 0 0 0 SW 18 31 2 0 0 0 WSW 5 10 W 1 1 0 0 0 5 WNW 0 0 0 0 0 3 NW 1 0 0 0 0 5 NNW 0 0 0 0 0 1 Variable 0 0 0 0 0 0.

Total 43 56 13 0 0 0 112 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-7

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Extremely Stable - 150Ft-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 0 ENE .0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 0 NNrIa 0 Variable 0 Total 4 10 0 0 0 0 14 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 II-8

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Extremely Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 1 0 1 0 0 0 0 ENE 1 0 1 0 0 0 0 E 1 0 1 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 SSE 0 3 1 4 0 _ 0 S 0 o o 1 1 2 0 0 SSW 0 1 0 0 1 0 0 SW 0 0 0 0 0 0 0 WSW 1 0 0 0 1 0 0 W 0 2 0 2 4 0 0 WNW 0 5 0 2 7 0 0 il 0 0 1 0 1 0 0 NNW 0 0 0 0 0 0 0 Variable, 0 0 0 0 0 Total 0 0 4 11 3 5 23 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability class;es: 3 II-9

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Moderately Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 0 0

NNE 0 0

NE 0 0

ENE 3 0

E 2 0

ESE 0 0

SE 0 SSE 0 1 S 0 2 SSW 0 0 SW 0 0 WSW 3 0 W 3 0 WNW 0 0 NW 1 3 NNW 1 1 Variable 0 0 Total 0 0 15 16 7 4 42 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 II-10

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Slightly Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 NNE 0 4 NE 0 2 ENE 0 3 E 0 5 ESE 0 4 SE 0 2 SSE 2 4 S 2 8 SSW 0 5 SW 4 7 WSW 1 3 W 2 13 WNW 0 12 NW 2 9 NNW 2 7 Variable 0 0 Total 0 1 30 35 15 10 91 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 II-11

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Neutral - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 11 6 20 5 0 42 NNE 2 6 14 16 8 1 47 NE 1 8 17 31 4 0 61 ENE 4 22 42 23 3 0 94 E 2 4 20 19 14 3 62 ESE 0 10 23 41 16 0 90 SE 0 3 8 13 3 0 27 SSE 2 2 11 14 18 7 54 S 2 4 20 18 34 8 86 SSW 0 7 24 27 22 4 84 SW 0 3 8 10 19 7 47 WSW 4 9 7 8 12 10 50 W 1. 9 22 67 55 24 178 WNW 2 10 29 48 23 24 136 NW 2 8 22 38 19 9 98 NNW 3 11 31 47 21 8 121 Variable 0 0 0 0 0 0 0 Total 25 127 304 440 276 105 1277 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 3 II-12

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Slightly Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 8 6 I 0 20 NNE 7 8 11 2 0 28 NE 4 12 4 0 0 20 ENE 2 22 0 0 0 24 E 0 13 3 0 0 16 ESE 2 7 8 10 0 27 SE 2 12 11 12 1 39 SSE 12 9 21 10 4 57 S 9 9 21 28 7 75 SSW 3 16 18 25 11 74 SW 2 5 17 20 1 47 WSW 2 13 20 11 0 47 W 3 7 32 13 0 55 WNW 4 9 25 2 0 41 NW 3 10 16 8 0 39 NNW 2 11 8 2 0 23 Variable 0 0 0 0 0 0 Total 11 61 171 221 144 24 632 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 5 Hours of missing stability measurements in all stability classes: 3 II-13

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Moderately Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

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

O 0

OI 0 0 Total 1 24 36 30 13 0 104 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 II-14

Dresden Nuclear Station Period of Record: January - March 2004 Stability Class - Extremely Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

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

0 0 0 0 0 0 NNE 0 0 . O 0

0 0 NE 0 0 0 0 0 0 ENE 0 0 0 0 0 0 E

0 0 0 0 0 0 ESE 0 0 0 0 0 0 SE 0 0 0 0 0 0 SSE _ 0*

S 00 0 1 0 0 1 SSW 0 1 0 0 0 1 SW 0 0 0 0 0 0 WSW 0 a 1 0 0.- 2 W 0 0 0 0 0 0 WNW 0 0 0 0 0 0 NW 0 0 0 0 0 0 NNW 0 0 0 0 0 0 Variable 0 0 0 0 0 Total 0 2 2 0 0 4 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 II-15

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Extremely Unstable - l5OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 15 15 2 34 NNE 22 9 2 34 NE 20 3 6 29 ENE 17 5 0 23 E 11 7 0 18 ESE 1 2 1 4 SE 3 3 0 6 SSE 6 1 1 8 S 3 4 0 7 SSW 4 8 7 24 SW 6 8 14 35 WSW 8 24 8 42 W 15 10 6 32 WNW 12 9 10 32 NW 14 10 3 27 NNW 15 12 6 35 Variable 0 0 0 0 Total 7 172 130 66 15 0 390 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-16

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Unstable - 150Ft-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 NNE 2 4 NE 3 6 ENE 2 5 E 2 2 ESE 0 2 SE 1 4 SSE 2 3 S 3 10 SSW 2 12 SW 3 14 WSW 6 15 W 4 8 WNW 5 6 NW 7. 9 NNW 2 4 Variable 0 0 Total 6 44 34 20 4 0 108 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-17

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Slightly Unstable - 150Ft-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 NNE 5 NE 4 ENE 7 E 7 ESE 13 SE 4 SSE 5 S 9 SSW 13 SW 10 WSW 12 W 8 WNW 2 NW 8 NNW 4 Variable 0 Total 11 54 35 13 2 0 115 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-18

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Neutral - 150Ft-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 19 3 0 27 NNE 13 7 0 25 NE 20 20 1 42 ENE 31 16 1 49 E 24 13 2 40 ESE 10 15 3 28 SE 10 10 10 31 SSE 21 10 5 39 S 11 23 15 56 SSW 14 25 18 72 SW 11 10 22 48 WSW 11 17 13 45 W 13 6 8 27 WNW 15 10 5 31 NW 15 3 2 21 NNW 16 4 1 26 Variable 0 0 0 0 Total 38 254 192 106 14 3 607 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 II-19

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Slightly Stable - l5OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet IWind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 15 27 8 1 0 51 NNE 14 21 1 0 0 36 NE 7 25 9 0 0 41 ENE 9 21 2 0 0 32 E -6 32 4 0 0 42 ESE 4 24 7 0 0 35 SE 7 12 6 0 0 25 SSE 5 21 9 2 0 37 S 11 34 35 15 0 95 SSW 13 34 31 10 16 105 SW 13 19 23 8 3 66 WSW 9 11 7 0 0 27 W 12 18 4 1 0 35 WNW 8 *25 4 1 0 38 NW 12 19 4 0 0 35 NNW 8 18 8 1 0 35 Variable 0 0 0 0 0 0 Total 153 361 162 39 19 1 735 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-20

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Stable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 5 0 0 0 0 NNE 1 1 2 0 0 0 0 NE 2 2 4 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 2 2 0 0 0 0 ESE 3 4 7 0 0 0 SE 1 6 1 8 0 0 0 SSE 1 4 0 5 0 0 0 S 3 3 1 0 0 0 7 0 0 0 SSW 12 7 1 20 0 0 0 SW 12 23 1 36 0 0 0 WSW 9 6 0 15 0 0 0 W 6 6 1 13 0 0 0 WNW 6 1 0 7 0 0 0 NW 16 0 0 16 0 0 0 NNW 9 0 I0 9 0 0 0 Variable 0 0 0 0 Total 85 66 5 0 0 0 156 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-21

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Extremely Stable - l5OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 1 0 0 NNE 0 0 0 0 0 NE 0 0 0 0 0 ENE '0 0 0 0 10 E 0 0 0 0 0 ESE 0 0

.0 0 SE 0. 1 1 0 0 SSE 0 0 0 0 0 S 3 a 0 0 4 0 0 SSW 6 2 8 0 0 SW 9 7 16 0 0 WSW 2 0 2 0 0 W 3 0 3 0 0 WNW 2 2 4 0 0 NW 7 0 7 0 0 NNW 4 0 4 0 0 Variable 0 0 0 Total 37 13 0 0 0 0 50 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-22

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Extremely Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 3 3 3 0 10 0

NNE 9 2 2 0 14 0

NE 1 1 0 3 0 5 0

ENE 0 0 0 0 0 0 0

E 0 0 0 0 0 0 0

ESE 0 1 0 0 0 1 0

SE 0 o 0 0 0 0 0

SSE 0 0 0 0 0 0

_ 0 S 0 0 0 1 0 1 0

SSW 0 0 0 0 0 0 0

SW 0 0 0 0 0 0 0

WSW 2 3 1 0 1 7 0

W 1 0 0 0 2 3 0

WNW 0 2 1 3 2 8 0

NW 0 1 2 5 0 8 0

NNW. 2 6 4 0 0 12 0

Variable 0 0 0 0 0 0 Total 0 8 26 13 17 5 69 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 II-23

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 1 7 4 0 14 NNE 0 6 3 1 0 11 NE 2 3 1 2 0 8 ENE 3 0 0 0 0 3 E 0 6 0 0 0 6 ESE 0 1 0 0 0 1 SE 0 0 0 0 0 0 SSE 2 1 0 0 0 3 S 2 0 0 0 0 2 SSW 0 0 3 1 2 6 SW 1 1 0 2 0 4 WSW 1 2 4 2 0 9 W 0 2 1 1 2 6 WNW 0 4 3 1 1 9 NW 2 5 2 1 0 10 NNW 2 0 4 0 1 7 varia'ble 0 0 0 0 0 0 Total 1 17 32 28 15 6 99 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 II-24

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Slightly Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 8 NNE 2 7 NE 2 10 ENE 2 13 E 2 8 ESE 2 2 SE 0 4 SSE 1 4 S 2 5 SSW 5 13 SW 5 16 WSW 10 19 W 3 18 WNW 4 14 NW 0 8 NNW 2 13 Variable 0 0 Total 0 28 58 45 10 21 162 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 2 II-25

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Neutral - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 6 23 14 3 0 47 NNE 7 16 24 6 0 55 NE 7 21 28 9 0 65 ENE 9 43 13 2 0 69 E 11 23 16 0 0 51 ESE 9 15 13 5 0 43 SE 8 10 12 14 1 45 SSE 6 17 4 5 0 34 S *8 15 20 16 9 68 SSW 7 13 31 26 14 93 SW 12 15 19 23 1s 87 WSW 5 20 19 11 13 69 W 10 23 8 12 3 57 WNW 4 13 10 4 4 36 NW 1 19 14 4 2 40 NNW 5 10 13 2 3 35 Variable 0 0 0 l 0 0 0 Total 16 115 296 258 142 67 894 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 2 II-26

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Slightly Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 7 24 8 2 45 NNE 5 22 17 1 0 47 NE 8 9 8 5 0 33 ENE 14 11 6 0 0 33 E 13 22 6 1 0 47 ESE 5 11 4 1 0 21 SE 9 19 6 2 0 37 SSE 4 6 16 2 1 29 S 2 15 41 45 11 114 SSW 4 16 44 28 19 112 SW 9 25 32 20 4 90 WSW 2 13 12 2 0 30 W 1 16 16 1 0 34 WNW 4 6 16 6 0 32 NW 6 13 13 0 0 33 NNW 1 7 8 7 1 24 Variable 0 0 0 0 0 0 Total 17 90 : 218 269 129 38 761 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 5 Hours of missing stability measurements in all stability classes: 2 II-27

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Moderately Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 6 1 10 NNE 2 3 2 2 9 NE 2 2 0 0 4 ENE 3 0 1 0 4 E 1 1 0 0 2 ESE 0 1 1 0 2 C SE 2 3 5 0 11 SSE 0 1 1 2 S 0 1 3. 4 9 SSW 1 2 5 0 9 SW 1 2 17 1 22 WSW 1 2 11 0 14 W 5 10 3 0 19 WNW 2 7 4 1 14 NW 2 7 2 0 12 NNW 3 3 1 0 8 Variable 0 0 0 0 0 Total 7 26 47 62 9 0 151 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 4 Hours of missing stability measurements in all stability classes: 2 II-28

Dresden Nuclear Station Period of Record: April - June 2004 Stability Class - Extremely Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

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

.1 SE 0 SSE 0 0 S 0 0 SSW 0 0 SW 1 0 WSW 4 0 W 1 0 WNW 0 0 NW 0 0 NNW 0 0 Variable 0 0 Total 0 8 9 16 2 0 35 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 II-29

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Unstable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 13 0 16 NNE 34 13 50 NE 36 16 55 ENE 20 5 25 E 10 6 18 ESE 8 1 10 SE 5 7 16 SSE 1 4 8 S 6 .9 16 SSW 9 20 31 SW 11 22 41 WSW 16 9 32 W 13 20 35 WNW 20 6 28 NW 12 5 21 NNW 38 1 43 Variable 0 0 0 Total 30 252 144 19 0 0 445 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-30

Dresden Nuclear Station I Period of Record: July - September 2004 Stability Class - Moderately Unstable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Winid Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 2-_

N 1 1 0 0 2 0 0 NNE 2 0 0 0 2 0 0 NE 2 3 2 0 7 0 0 ENE 0 2 1 0 3 0 0 E 0 1 1 0 2 0 0 ESE 1 2 1 0 4 0 0 SE 0 2 4 2 8 0 0 SSE 0 5 2 0 7

_ 0 _ 0 S 2 5 3 0 10 0 0 SSW 0 1 6 0 7 0 0 SW 0 2 3 0 5 0 0 WSW 3 7 2 1 13 0 0 W 0 6 5 0 11 0 0 WNW 1 4 5 0 10 0 0 NW 1 1 0 0 2 0 0 NNW 0 5 o o 5 0 0 Variable 0 0 0 0 0 Total 13 47' 35 3 0 0 98 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0

. II-31

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Unstable - l5OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 0 0 0 2 0

NNE 1 0 0 0 0 1 0

NE 1 2 0 0 0 3 0

ENE 1 3 0 0 0 4 0

E 0 1 1 0 0 2 0

ESE 1 5 1 0 0 7 0

SE 1 4 2 0 0 7 0

SSE 0 4 3 1 0 8 0

S 2 4 7 1 0 0 14 0

SSW 1 5 1 1 0 8 0

SW 1 3 2 0 0 6 0

WSW 0 2 4 0 0 6 0

W 1 4 5 0 0 10 0

WNW 0 2 0 0 0 2 0

NW 1 5 0 0 0 6 0

NNW 2 2 0 0 0 4 0

Variable 0 0 0 0 o 0 Total 13 48 26 3 0 0 90 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-32

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Neutral - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total I- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

N 13 0 16 NNE 5 2 9 NE 22 4 30 ENE 14 1 16 E 23 1 29 ESE 12 4 21 SE 26 13 44 SSE 27 14 ' 42 S 25 19 57 SSW 28 6 48 SW 21 9 39 WSW 9 10 24 W 22 14 38 WNW 12 5 25 NW 9 0 15 NNW 6 0 12 Variable 0 0 0 Total 73 274 102 15 1 0 465 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-33

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Stable . - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 14 12 0 26 NNE 12 13 0 25 NE 13 36 0 49 ENE 5 13 0 18 E 3 29 0 32 ESE 11 27 3 41 SE 7 12 6 25 SSE 10 21 20 51 S 22 32 22 83 SSW 18 24 6 48 SW 22 13 2 38 WSW 10 12 1 23 W 10 28 5 43 WNW 12 14 2 28 NW 30 16 0 46 NNW 25 12 0 37 Variable 0 0 0 0 Total 224 314 67 8 0 0 613 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-34

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Moderately Stable - l5OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 10 4 0 14 0

NNE 8 2 0 10 0

NE 2 0 0 2 0

ENE 0 1 0 1 0

E 4 2 0 6 0

ESE 19 34 0 53 0

SE 16 8 0 24 SSE 17 8 1 0 26 S 15 11 2 0 28 SSW 12 3 0 0 15

- SW 20 10 0 0 30 WSW 10 3 0 0 13 W 15 1 0 0 16 WNW 13 2 0 0 15 NW 13 1 0 0 14 NNW 21 2 0 0 23 Variable 0 0 0 10 0 Total 195 92 3 0 0 0 290 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-35

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Stable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 NNE 1 0 1 NE 1 0 1 ENE 1 1 2 E 4 0 4 ESE 11 11 22 SE 8 3 11 SSE 2 1 3 S 3 0 3 SSW 5 0 5 SW 12 0 12 WSW 10 1 11 W 2 0 2 WNW 3 0 3 NW 10 0 10 NNW 6 0 6 Variable 0 0 0 Total 79 17 0 0 0 0 96 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 II-36

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 4 2 0 0 7 0

NNE 2 8 7 13 30 0

NE 4 9 2 0 15 0

ENE 0 6 0 0 6 0

E 1 1 1 0 3 0

ESE 1 1 0 0 2 0

SE 0 0 0 0 0 0

SSE 0 0 0 0 0 0

S 0 0 0 0 0 00 SSW 0 2 0 0 2 0

SW 0 1 2 0 3 0

WSW 1 2 1 1 5 0

W 1 1 0 0 2 0

WNW 1 1 0 0 2 0

NW 2 0 1 0 3 0

NNW 0 7 2 0 9 0

Variable 0 0 0 0 0 Total 0 14 43 18 14 0 89 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 17 II-37

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Moderately Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 3 1 0 0 8 NNE 0 1 6 4 3 2 16 NE 0 4 6 2 0 0 12 ENE 0 3 3 1 0 0 7 E 0 1 3 2 0 0 6 ESE 0 2 0 0 0 0 2 SE 0 2 3 1 1 0 7 SSE 0 1 2 1 0 0 4 S 0 1 2 1 0 0 4 SSW 0 1 8 2 0 0 11 SW 0 3 1 5 0 0 9 WSW 0 4 7 2 1 0 14 W 0 5 2 0 1 0 8 WNW 0 1 2 1 0 0 4 NW 0 0 1 2 0 0 3 NNW 0 1 4 1 0 0 6 Variable 0 0 0 0 0 0 0 Total 0 34 53 26 6 2 121 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: 17 II-38

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 3 2 0 0 7 NNE 3 6 1 2 0 12 NE 3 7 1 1 0 12 ENE 2 3 1 0 0 6 E 0 3 0 0 0 4 ESE 3 3 0 0 0 6 SE 7 7 1 0 0 15 SSE 0 2 3 1 0 6 S 1 7 6 0 0 14 SSW 2 7 3 1 0 13 SW 2 7 4 1 0 14 WSW 6 6 1 3 0 16 W 2 3 4 3 0 12 WNW 5 5 2 0 0 12 NW 5 1 1 0 0 7 NNW 4 4 3 0 0 11 Variable 0 0 0 0 0 0 Total 1 47 74 33 12 0 167 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 17 II-39

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Neutral - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 6 11 13 3 0 33 NNE 7 13 9 7 0 38 NE 9 21 11 5 0 46 ENE 9 15 1 0 0 26 E 9 7 12 0 0 29 ESE 15 8 7 0 0 30 SE 20 16 14 0 0 52 SSE 17 21 14 11 1 65 S 23 31 22 5 1 84 SSW 18 22 12 4 1 61 SW 9 19 10 4 0 46 WSW 12 10 11 9 0 45 W 6 11 43 1 0 64 WNW 13 13 8 3 0. 40 NW 11 9 3 0 0 23 NNW 8 13 5 0 0 27 Variable 0 0 0 0 0 0 Total 27 192 240 195 52 3 709 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 17 II-40

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Slightly Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 7 12 11 4 35 NNE 1 13 32 7 53 NE 4 13 11 0 28 ENE 20 18 0 0 41 E 6 12 22 1 42 ESE 5 14 5 2 27 SE 9 12 9 1 32 SSE 10 9 16 9 46 S 14 23 33 16 89 SSW 6 24 25 4 61 SW 6 18 13 1 39 WSW 4 15 4 1 24 W 4 18 29 0 52 WNW 7 10 13 0 32 NW 5 21 9 4 42 NNW 4 7 4 2 18 Variable 0 0 0 0 0 Total 18 112 239 236 52 4 661 Hours of calm in this stability-class: 0 Hours of missing'wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 17 II-41

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Moderately Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 9 15 NNE 11 19 34 NE 2 3 7 ENE 1 0 6 E 4 1 6 ESE 7 11 29 SE 10 14 30 SSE 22 10 46 S 15 21 48 SSW 9 19 36 SW 7 8 22 WSW 6 4 15 W 13 2 29 WNW 4 3 16 NW 14 2 22 NNW 3 3 11 Variable 0 0 0 Total 24 64 131 129 24 0 372 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 17 II-42 .

Dresden Nuclear Station Period of Record: July - September 2004 Stability Class - Extremely Stable 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 4 0 0 6 0 0 NNE 2 0 0 0 2 0 0 NE 2 0 0 0 2 0 0 ENE 1 0 0 0 1 0 2 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 SE 1 1 1 2 1 0 6 SSE 0 1 2 4 0 0 7 S 1 4 2 5 0 0 12 SSW 0 1 1 1 1 0 4 SW 2 0 1 1 1 0 5 WSW 0 1 5 0 0 0 6 W 2 0 2 1 0 '0 5 WNW 0 0 1 2 0 0 3 NW 1 0 3 0 0 0 4 NNW 0 2 1 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 7 17 23 16 3 0 66 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 17 II-43

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Unstable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 7 NNE 0 0 NE 6 8 ENE 3 8 E 8 14 ESE 3 4 SE 0 0 SSE 0 0 S 0 0 SSW 0 5 SW 0 2 WSW 5 10 W 10 14 WNW 7 11 NW 2 12 NNW 13 25 Variable 0 0 Total 1 39 59 21 0 0 120 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 II-44

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Unstable - 150Ft-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total

_________ _____ _____ 1____ 0---- 0---- 0---- 2----

N 1 1 0 0 0 2 0

NNE 1 1 0 0 0 1 0

NE 1 1 0 0 0 2 0

ENE 0 2 0 0 0 4 0

E 2 2 0 0 0 4 0

ESE 1 1 0 0 0 2 0

SE 0 1 0 0 0 1 0

SSE 0 2 0 0 0 2 0

S 1 1 0 0 0 2 0

SSW 1 O O O 0 1 0

SW 0 0 0 0 0 0 WSW 1 5 4 0 0 0 10 W 0 1 4 1 0 0 6 WNW 0 1 2 0 0 0 3 NW 0 0 1 0 0 0 1 NNW 0 1 2 1 0 0 4 Variable 0 0 0 0 0 0 0 Total 1 16 . 22 2 0 0 41 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-45

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Slightly Unstable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 NNE 1 0 1 NE 3 1 6 ENE 0 1 E 2 2 5 ESE 1 3 4 SE 0 0 0 SSE 2 2 4 S 0 3 5 SSW 1 1 4 SW 0 0 3 WSW 3 10 13 W 1 3 4 WNW 0 1 1 NW 4 0 6 NNW 1 1 2 Variable 0 0 0 Total 2 20 27 11 0 0 60 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 II-46

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Neutral - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 12__ 2---- 0---- 0----

N 5 10 12 2 0 0 29 NNE 11 20 2 4 0 0 37 NE 3 34 6 7 2 0 52 ENE 2 35 18 0 0 0 55 E 7 24 34 1 0 0 66 ESE 1 12 18 1 0 0 32 SE 4 8 7 3 0 0 22 SSE 4 15 36 12 0 0 67 S 3 16 27 16 8 2 72 SSW 0 9 20 19 2 0 50 SW 1 11 16 16 1 0 45 WSW 2 13 9 7 2 3 36 W 2 8 24 32 1 0 67 WNW 3 19 43 13 11 0 89 NW 0 19 21 10 1 0 51 NNW 2 11 30 24 0 0 67 Variable 0 0 0 0 0 0 0 Total 50 264 323 167 28 5 837 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 II-47

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Slightly Stable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 11 19 3 0 33 NNE 14 16 7 1 38 NE 4 21 5 1 31 ENE 5 21 0 0 26 E 3 28 6 1 38 ESE 5 31 5 0 41 SE 3 21 18 2 44 SSE 3 27 16 5 51 S 6 39 31 17 98 SSW 7 21 25 2 63 SW 1 24 19 6 52 WSW 3 4 5 3 15 W 11 16 31 2 60 WNW 3 20 25 1 49 NW 8 19 6 1 34 NNW 12 27 6 1 46 Variable 0 0 0 0 0 Total 99 354 208 43 14 1 719 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-48

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Stable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 7 NNE 4 11 NE 2 5 ENE 0 1 E 1 2 ESE 12 13 SE 1 6 SSE 7 15' S 1 5 SSW 7 18 SW 24 37 WSW 10 12 W 2 4 WNW 4 5 NW 1 7 NNW 13 22 Variable 0 0 Total 66 93 11 0 0 0 170 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-49

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Stable - 15OFt-35Ft Delta-T (F)

Winds Measured at 35 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total I- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

N 3 3 NNE 2 2 NE 1 1 ENE a 1 E 5 5 ESE 8 17 SE 3 4 SSE 0 0 S 1 3 SSW 11 13 SW 2 9 WSW 5 5 W 2 2 WNW 0 0 NW 5 5 NNW 2 2 Variable 0 0 Total 51 21 0 0 0 0 72 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-50

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Unstable - 300Ft-3SFt Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 2 0 0~ 0 NNE 0 0 0O 0 0 0 NE 1 1 2 0 0 0 ENE 2 .0 2 0 0 0 E 4 3 7 0 0 0 ESE O 0 0 0 0 0 0 SE 0 0 0 0 0 0 SSE 0 0 0 0 _ 0 0 S 0 0 0 00 0 0 SSW 0 0 0 0 0 0 SW 0 0 0 0 0 0 WSW 0 0 0 0 0 0 W 0 0 0 0 0 0 WNW 0 0 0 0 0 NW 3 0 1 4 0 0 NNW 1 2 1 4 0 0 Variable 0 0 0 0 Total 0 0 11 8 2 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: 11 II-51

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Unstable* - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total

_____ _____ 1____ _____

N 1 1 3 0

NNE 0 1 0 1 0

NE 0 1 3 5 0

ENE 0 4 0 4 0

E 0 5 1 6 0

ESE 0 1 1 2 0

SE 0 0 0 0 0

SSE 0 0 1 1 0

S 0 0 0 0 0 0

SSW 0 0 1 4 0

SW 2 0 0 2 0

WSW 1 3 2 8 0

W 0 6 1 8 0

WNW 1 6 0 7 0

NW 0 1 4 0

NNW 0 5 11 0

Variable 0 0 0 0 Total 0 5 34 14 11 2 66 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 II-52

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Slightly Unstable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 1 0 3 0

NNE 0 0 0 0 0 0 0

NE 1 1 0 0 0 2 0

ENE 0 2 0 0 0 2 0

E 1 6 3 0 0 10 0

ESE 0 3 1 0 0 4 0

SE 0 1 0 0 0 1 0

SSE 0 1 2 0 0 3 0

S 2 0 3 1 2 8 0

SSW 0 2 1 3 0 6 0

SW 1 0 0 1 0 2 WSW 1 1. 3 1 4 0 10 W 0 1 8 2 2 0 13 WNW 0 2 6 2 0 0 10 NW 0 0 1 1 0 1 3 NNW 0 0 6 1 1 1 9 Variable 0 0 0 0 0 0 0 Total 1 9 42 17 13 4 86 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 II-53

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Neutral - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 7 12 16 6 2 44 NNE 0 9 35 7 5 6 62 NE 0 8 30 12 7 3 60 ENE 0 31 33 21 1 0 86 E 1 8 31 26 11 1 78 ESE 1 4 11 10 1 0 27 SE 2 5 8 16 6 0 37 SSE 3 9 19 35 11 3 80 S 1 8 21 33 10 23 96 SSW 0 3 11 37 23 1 75 SW 0 5 22 16 24 3 70 WSW 0 12 21 11 6 10 60 W 1 2 13 31 33 14 94 WNW 0 2 16 42 17 17 94 NW 1 4 16 31 9 12 73 NNW 0 6 19 25 35 12 97 Variable 0 0 0 0 0 0 0 Total 11 123 318 369 205 107 1133 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 18 Hours of missing stability measurements in all stability classes: 11 II-54

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Slightly Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 9 11 3 0 31 NNE 4 20 3 0 31 NE 8 8 0 0 24 ENE 15 0 0 0 20 E 8 17 0 0 29 ESE 3 22 0 0 26 SE 4 20 0 0 30 SSE 13 21 9 0 52 S 11 15 8 11 53 SSW 17 34 10 10 74 SW 8 25 15 5 56 WSW 11 17 4 1 37 W 10 28 6 0 44 WNW 4 13 13 0 33 NW 7 15 4 1 31 NNW 11 16 4 0 37 Variable 0 0 0 0 0 Total 14 62 143 282 79 28 608 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 32 Hours of missing stability measurements in all stability classes: 11 II-55

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Moderately Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 10 8 21 NNE 3 11 15 NE 1 6 8 ENE 4 0 7 E 1 0 4.

ESE 0 2 6 SE 3 5 10 SSE 5 5 15 S 6 14 26 SSW 3 3 10 SW 1 8 17 WSW 3 6 12 W 4 5 9 WNW 3 2 6 NW 2 2 5 NNW 7 2 12 Variable 0 .0 0 Total 4 22 56 79 22 0 183 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 11 II-56

Dresden Nuclear Station Period of Record: October - December2004 Stability Class - Extremely Stable - 300Ft-35Ft Delta-T (F)

Winds Measured at 300 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 2 0 0 2 NNE 3 1 0 0 0 6 NE 0 0 0 0 0 0 ENE 0 0 0 0 0 0 E 0 1 2 0 0 3 ESE 0 1 0 0 0 1 SE 2 3 1 0 0 6 SSE 0 0 1 0 0 1 S 0 1 9 0 0 10 SSW 0 3 3 2 0 8 SW 0 0 2 1 0 3 WSW 0 5 0 0 0 5 W 0 2 1 0 0 3 WNW 0 1 0 0 0 1 NW 0 o o 0 0 0 NNW 0 0 0 0 0 0 Variable 0 0 0' 0 0 0 Total 2 5 18 21 3 0 49 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 II-57

DRESDEN APPENDIX III 2004 REMP SAMPLE RESULTS Iml-I

DRESDEN 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 2004 ANALYSES DATA TABLES ............................ 111-7 5.0 LAND USE CENSUS ............................ 111-37 6.0 TLD DATA ........................... 111-41 7.0 GRAPHS OF DATA TRENDS............................................... I11-45 111-2

DRESDEN LIST OF TABLES No. Title Page 1 Airborne Particulates and Jodine-131 ... ................................ 11-8 2 Airborne Particulates, Quarterly Composites ................................ 111-16 3 Milk ................................. 111-20 4 Fish, Edible Portions ................................. 111-23 5 Bottom Sediments ................................ 111-25 6 Vegetables ................................ III-26 7 Surface Water ................................ 111-29 8 Well Water ................................... 111-36 III-3

DRESDEN

1.0 INTRODUCTION

The following constitutes the 2004 Progress Report for the Radiological Environmental Monitoring Program conducted at the Dresden Nuclear Power Station, Morris, Illinois. Results of completed analyses are presented in the attached tables.

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

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

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

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

TLD data is provided by Exelon Generation Company.

Deviations 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 None for 2004 Sample Type Location Collection Comments Code Date II1-4

DRESDEN 2.0 LISTING OF MISSED SAMPLES Location Expected Sample Type Code Collection Reason Date AXl D-02 01-02-04 No sample; power out; unable to field check pump.

to 12-31-04 A D-53 05-14-04 No sample; low reading of 57.3 due to blown fuse; runtime not enough for viable sample.

A/I D-53 05-21-04 No AP sample; low reading of 42.5 due to pump malfunction; runtime not enough for viable filter; charcoal cartridge runtime = 99.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> for two weeks.

Pump replaced.

A/I D-03 06-18-04 Power out; Station Point of Contact notified. Air particulate not viable sample; charcoal cartridge runtime

= I week + 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

A D-03 09-03-04 Low reading of 26.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> due to pump malfunction; pump removed for service. Runtime not enough for viable air particulate.

TLD Other 12-31-04 D-208-1 lost in transit to TLD vendor.

M1-5

DRESDEN 3.0 LISTING OF SAMPLE ANOMALIES Sample Type Location Collection Reason Code Date A/I D-04 01-29-04 Low reading of 45.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> due to blown fuse; collector replaced fuse.

A D-03 06-25-04 Low reading of 44.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> due to recent power restoration.

A D-03 08-06-04 Low meter reading of 160.3 hrs. possibly due to storms in area.

A D-12 08-06-04 Low meter reading of 159.2 hrs. possibly due to storms in area.

A D-12 11-12-04 Low meter reading of 136.5 hrs.; ComEd working on line.

m-6

DRESDEN 4.0 ANALYSES DATA TABLES III-7

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates - Continuous; weekly exchange Iodine cartridges - Continuous; biweekly exchange Required LLD: Gross Beta = 0.01, I-131 = 0.07 pCi/rn' Units: 10 2 pCi/rn D-01 Onsite Station I Date Volume Gross Date Volume Gross Collected (m') Beta I-131' Collected (m') Beta 1-131' 01-02-04 289 2.2+/- 0.3; -0.0+/-0.3;0.3 07-02-04 290 1.9 +/- 0.3; 0.4 +/- 0.3 ;0.3 01-09-04 285 3.7 +/- 0.4; 07-09-04 281 2.0 +/- 0.4; -

01-16-04 282 2.9 +/- 0.4; -0.6+/- 0.4 ;0.4 07-16-04 280 1.6+/- 0.3; 0.7+/-0.3 ;0.3 01-23-04 284 2.4 +/- 0.4; 07-23-04 289 2.4 +/- 0.4; -

01-29-04 244 2.2+/-0.4; 0.540.4;0.4 07-30-04 284 1.9 0.4; -0.7+/-0.4 ;0.4 02-06-04 329 4.0 4 0.4; 08-06-04 283 2.6 +/- 0.4; -

02-13-04 284 3.4+/-0.4; 0.5 0.3;0.3 08-13-04 295 2.1 0.3; 0.6+/-0.3;0.3 02-20-04 285 2.7 +/- 0.4; 08-20-04 284 1.8 A 0.4; -

02-27-04 283 2.1 +/- 0.3; 0.5+/-0.3 ;0.3 08-27-04 278 2.0+/-0.4; 0.2+0.3;0.3 03-05-04 285 1.7 +/- 0.3; 09-03-04 284 2.0 +/- 0.3; -

03-12-04 285 2.9+/- 0.4; -0.0+/-0.4 ;0.4 09-10-04 294 2.4+/- 0.4; -0.2+/- 0.3 ;0.3 03-18-04 234 2.3 +/- 0.4; 09-17-04 276 2.7 +/- 0.4; -

03-26-04 339 1.8 +/- 0.3; 0.2+/-0.3 ;0.3 09-24-04 279 2.8 + 0.4; 0.0+/- 0.3 ;0.3 Ist Qtr. Meanss.d. 2.7 40.7 0.1+/- 0.4 3rd Qtr. Mean+/-s.d. 2.2 +/-0.4 0.2+/- 0.5 04-02-04 288 1.4 +/- 0.3; 10-01-04 292 1.6 +/- 0.3; -

04-09-04 279 2.1 +/- 0.4; 1.3 +/- 0.3 ;0.4 10-08-04 276 2.5 +/- 0.4; -0.8+/-0.3;0.3 04-16-04 283 1.6+/- 0.4; 10-15-04 281 1.8 +/- 0.3; -

04-23-04 284 1.9 +/- 0.4; 0.3 +/- 0.3 ;0.3 10-22-04 288 1.6+/- 0.3; -0.2+/- 0.3 ;0.3 04-30-04 284 1.6 0.3; 10-29-04 288 2.9 +/- 0.4; -

05-07-04 287 1.8 +/- 0.3; 0.3 +/- 0.3 ;0.3 11-05-04 284 1.6 +/- 0.3; -0.2 +/- 0.4 ;0.4 05-14-04 285 2.0 0.4; 11-12-04 287 2.0+/-0.4; -

05-21-04 285 1.3 0.3; 0.3+/-0.3;0.3 11-19-04 280 2.6+/-0.4; 1.0+/-0.3;0.4 05-28-04 285 1.1 +/- 0.3; - 11-26-04 287 2.2 0.3; -

06-04-04 284 1.0 +/- 0.3; -0.3 +/- 0.3 ;0.3 12-03-04 286 2.4 0.4; -0.2 +/- 0.3 ;0.3 06-11-04 289 2.0 0.4; 12-10-04 285 3.5 0.4; -

06-18-04 282 1.9 +/- 0.4; 0.1 0.3 ;0.3 12-17-04 282 3.1+/-0.4; -0.7+/-0.4;0.4 06-25-04 284 1.3 +/- 0.3; 12-24-04 287 2.2 +/- 0.4; -

12-31-04 288 3.6 +/- 0.4; -0.4 +/- 0.3; 0.3 2nd Qtr. Mean+/-s.d. 1.6 +/-0.4 0.3+/- 0.5 4th Qtr. Mean+/-s.d. 2.4 +0.7 -0.2+/- 0.6

'Volume based on a two week collection period.

III-8

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates - Continuous; veekly exchange Iodine cartridges - Continuous; biweekly exchange Required LLD: Gross Beta = 0.01, I-131 = 0.07 pCi/m3 Units: 10 2 pCilm3 D-02 Onsite Station 2 Date Volume Gross Date Volume Gross Collected (m3) Beta I-131' Collected (in) Beta I-131' 01-02-04 NSb 07-02-04 NSb 01-09-04 NSb 07-09-04 NSb _ _

01-16-04 NSb 07-16-04 NSb 01-23-04 NSb 07-23-04 NSb' 01-29-04 NS' 07-30-04 NS b _ _

02-06-04 NSb 08-06-04 NSb 02-13-04 NSb 08-13-04 NSb 02-20-04 NSb 08-20-04 NSb _ _

02-27-04 NSb 08-27-04 NSb _ _

03-05-04 NSb 09-03-04 NS b _ _

03-12-04 NSb 09-10-04 NS'b _

03-18-04 NSb 09-17-04 NSb 03-26-04 NSb 09-24-04 NSb _ _

Ist Qtr. Meanis.d. 3rd Qtr. Meanss.d.

04-02-04 NS' 10-01-04 NSb 04-09-04 NSb 10-08-04 NSb 04-16-04 NSb 10-15-04 NSb 04-23-04 NSb 10-22-04 NSb 04-30-04 NSb 10-29-04 NSb 05-07-04 NS b 11-05-04 NSb 05-14-04 NSb 11-12-04 NSb 05-21-04 NSb 11-19-04 NSb 05-28-04 NSb 11-26-04 NSb 06-04-04 NSb 12-03-04 NS b 06-11-04 NSb 12-10-04 NSb 06-18-04 NSb 12-17-04 NSb 06-25-04 NSb 12-24-04 NSb 12-31-04 NSb 2nd Qtr. Meanbs.d.

4th Qtr. Meanss.d.

• Volume based on a two week collection period.

"'NS" = No sample; electricity off.

111-9

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates - Continuous; weekly exchange Iodine cartridges - Continuous; biweekly exchange Required LLD: Gross Beta = 0.01, I-131 = 0.07 pCi/m' Units: 10 2 pCi/n' D-03 Onsite Station 3 Date Volume Gross Date Volume Gross Collected (m') Beta I-131' Collected (m') Beta 1-131' 01-02-04 284 2.8 +/- 0.3; 0.3 +/- 0.3 ;0.3 07-02-04 280 2.4 +/- 0.3; -0.6+/-0.5;0.5 01-09-04 284 4.1 +/- 0.4; 07-09-04 283 2.1 +/- 0.4; -

01-16-04 282 3.4 +/- 0.4; -0.9 +/- 0.4 ;0.4 07-16-04 290 2.1 +/- 0.4; -0.8+/-0.3;0.4 01-23-04 284 2.5 0.4; 07-23-04 288 2.9 +/- 0.4; -

01-29-04 244 2.5 +/- 0.4; -0.1 +/- 0.3 ;0.3 07-30-04 285 2.2 +/- 0.4; -0.1 +/-0.3 ;0.3 02-06-04 326 4.3 +/- 0.4; 08-06-04 272d 3.1 +/- 0.4; 02-13-04 284 3.8 +/- 0.4; 0.3 +/- 0.3 ;0.3 08-13-04 294 2.0+/-0.3; 0.2+/- 0.3 ;0.3 02-20-04 281 2.7 0.4; 08-20-04 285 2.5 +/- 0.4; -

02-27-04 288 2.8 +/- 0.4; -0.1 +/- 0.3 ;0.3 08-27-04 279 2.0 +/- 0.4; 0.4+/- 0.3 ;0.3 03-05-04 286 1.9 0.3; 09-03-04 NS e -

03-12-04 285 2.7 +/- 0.4; -0.3 +/- 0.4 ;0.4 09-10-04 278 2.6+/-0.4; -0.0+/-0.6;0.6 03-18-04 239 1.4 0.4; 09-17-04 293 2.3 +/- 0.4; -

03-26-04 328 1.7 0.3; -0.3+0.4 ;0.4 09-24-04 279 2.7 +/- 0.4; 0.3 +/- 0.3 ;0.3 Ist Qtr. Meanss.d. 2.8 +/-0.9 -0.2+/- 0.4 3rd Qtr. Mean+/-s.d. 2.4 +/-0.4 -0.1+/- 0.4 04-02-04 296 1.6 +/- 0.3; 10-01-04 292 1.9 0.3; -

04-09-04 274 2.2 +/- 0.4; -0.7 +/- 0.3 ;0.4 10-08-04 279 2.3 0.3; 0.2+/- 0.3 ;0.3 04-16-04 284 1.4 0.3; 10-15-04 282 2.0 0.3; -

04-23-04 286 1.9 0.4; 0.1 +/- 0.4;0.4 10-22-04 288 1.6 0.3; 0.5+/-0.4 ;0.4 04-30-04 279 1.8 0.3; 10-29-04 284 2.9+/- 0.4; -

05-07-04 287 1.7 0.3; -0.2+/- 0.3 ;0.3 11-05-04 289 1.5 0.3; -0.4 +/- 0.3 ;0.3 05-14-04 284 2.3 +/- 0.4; 11-12-04 287 2.9 0.4; -

05-21-04 286 1.1 +/- 0.3; -0.7 0.3 ;0.4 11-19-04 281 2.5 0.4; 0.2+/- 0.3 ;0.3 05-28-04 285 1.1 +/- 0.3; - 11-26-04 288 1.5 0.3; -

06-04-04 278 1.3 +/- 0.3; 0.5 +/- 0.4 ;0.4 12-03-04 285 1.9 +/- 0.4; -1.1 +/- 0.3 ;0.4 06-11-04 284 2.2 +/- 0.4; 12-10-04 285 2.9 0.4; -

06-18-04 NSb - 0.24 0.6 ;0.6 12-17-04 282 3.0+/-0.4; 0.0+/-0.3;0.3 06-25-04 75.' 2.0+/- 1.1; 12-24-04 287 2.0 +/- 0.4; 12-31-04 279 3.3 +/- 0.4; 0.5 +/- 0.4 ;0.4 2nd Qtr. Meanis.d. 1.7 40.4 -0.1+/- 0.5 4th Qtr. Mean+/-s.d. 2.3 +/-0.6 -0.0i 0.6

' Volume based on a two week collection period.

"'NS" = No sample; power out. Charcoal cartridge runtime = I week + 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

' Volume low due to recent power restoration.

' Volume low, possibly due to storms in area.

' Pump malfunction; runtime not enough for viable air particulate; collector replaced pump.

III-10

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates - Continuous; weekly exchange Iodine cartridges - Continuous; biweekly exchange Required LLD: Gross Beta = 0.01, I-131 = 0.07 pCi/m' Units: 10 2 pCilm' D-04 Collins Road Date Volume Gross Date Volume Gross Collected (m') Beta I-131' Collected (i') Beta I-131' 01-02-04 289 2.9 + 0.3; -0.5 + 0.4 ;0.4 07-02-04 268 2.4 +/- 0.3; 1.0+/-0.4 ;0.4 01-09-04 285 3.8 + 0.4; 07-09-04 282 1.9 +/- 0.4; 01-16-04 282 3.4 0.4; 1.8+/-0.3;0.5 07-16-04 280 1.5 0.3; -0.5 +/- 0.3 ;0.3 01-23-04 284 2.6 0.4; 07-23-04 288 2.5 +/- 0.4; 01-29-04 77. 2.3 1.0; 0.3 0.5 ;0.5 07-30-04 285 1.7 + 0.4; 0.7+/-0.4 ;0.4 02-06-04 329 4.7 +/- 0.4; 08-06-04 284 2.2 + 0.4; 02-13-04 284 4.0+/-0.4; 0.4 0.3;0.3 08-13-04 294 1.9+/-0.3; 0.9+/-0.3 ;0.3 02-20-04 290 2.7 +/- 0.4; 08-20-04 285 2.3 +/- 0.4; 02-27-04 283 2.5 +/- 0.4; -0.0+/- 0.3 ;0.3 08-27-04 279 2.3 A 0.4; 0.4+/-0.3 ;0.3 03-05-04 286 2.1 +/- 0.3; 09-03-04 284 0.2 +/- 0.2; 03-12-04 285 3.0 0.4; 0.0+/-0.3;0.3 09-10-04 293 2.6 +/- 0.4; 0.2 +/- 0.3 ;0.3 03-18-04 234 1.4 + 0.4; 09-17-04 276 2.6 0.4; 03-26-04 339 1.9 +/- 0.3; 0.2 +/- 0.4 ;0.4 09-24-04 279 2.7 +/- 0.4; 0.2+/-0.4 ;0.4 1st Qtr. Mean+/-s.d. 2.9 +/-0.9 0.3+ 0.7 3rd Qtr. Mean+/-s.d. 2.1 +/-0.7 0.4+/- 0.5 04-02-04 291 1.7 +/- 0.3; 10-01-04 292 2.0 +/- 0.3; 04-09-04 279 2.1 0.4; -0.6+/- 0.3 ;0.3 10-08-04 280 2.7 0.4; 0.4+/- 0.4 ;0.4 04-16-04 283 1.9 0.4; 10-15-04 281 2.1+/-0.3; 04-23-04 284 1.9 +/- 0.4; -1.1 +/- 0.3 ;0.3 10-22-04 288 1.7 0.3; -0.0+/- 0.3 ;0.3 04-30-04 284 1.8 0.3; 10-29-04 288 3.1+/-0.4; 05-07-04 287 2.0+/-0.3; -0.2+/- 0.4 ;0.4 11-05-04 284 1.8 0.4; -1.2+/-0.4 ;0.4 05-14-04 284 2.2 +/- 0.4; 11-12-04 287 2.7+/-0.4; 05-21-04 285 1.5+/-0.3; -0.4+/- 0.3 ;0.4 11-19-04 276 3.2 0.4; -1.0+/- 0.4 ;0.4 05-28-04 285 1.3 +/- 0.3; 11-26-04 287 1.7 0.3; 06-04-04 284 1.3 0.3; 0.1+/-0.3 ;0.3 12-03-04 286 2.8 +/- 0.4; -0.2+/- 0.3 ;0.3 06-11-04 288 1.9 0.4; 12-10-04 290 4.0 0.4; 06-18-04 282 1.7 0.3; -0.8+/-0.3 ;0.4 12-17-04 282 2.8 + 0.4; -0.2 + 0.3 ;0.3 06-25-04 290 1.2 +/- 0.3; 12-24-04 287 2.9 + 0.4; 12-31-04 288 3.0 +/- 0.4; -0. +/- 0.3 ;0.3 2nd Qtr. Mean+/-s.d. 1.7 40.3 -0.5+/- 0.4 4th Qtr. Mean+/-s.d. 2.6 +/-0.7 -0.3+/- 0.5

• Volume based on a two week collection period.

' Volume low due to blown fuse.

111-11

DRESDEN 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 Units: lo" pCi/r' D-07 Clay Products Date Volume Gross Date Volume Gross Collected (m') Beta 1-131' Collected (in) Beta 1-131' 01-02-04 289 3.0+/-0.4; 0.3+/-0.3;0.3 07-02-04 275 2.5 +/- 0.3; 0.74 0.3 ;0.4 01-09-04 282 3.7 0.4; 07-09-04 286 2.0 0.4; 01-16-04 284 3.2 +/- 0.4; -0.3 4 0.3 ;0.3 07-16-04 277 2.0 +/- 0.4; 0.3 +/- 0.3 ;0.3 01-23-04 284 2.7 +/- 0.4; - 07-23-04 285 3.1 +/- 0.4; 01-29-04 242 2.9 +/- 0.4; 0.4 +/- 0.4 ;0.4 07-30-04 285 2.4 +/- 0.4; -0.4+/- 0.3 ;0.3 02-06-04 329 4.4 +/- 0.4; 08-06-04 285 2.6 A 0.4; 02-13-04 284 3.9+/-0.4; 0.70.2;0.3 08-13-04 304 1.8 X 0.3; 0.64 0.4 ;0.4 02-20-04 285 3.4 i 0.4; 08-20-04 282 1.9 + 0.4; 02-27-04 286 3.0 +/- 0.4; -0.2 +/- 0.3 ;0.3 08-27-04 285 2.2 + 0.4; 0.2 + 0.3 ;0.3 03-05-04 286 2.2 +/- 0.3; 09-03-04 273 2.3 + 0.4; 03-12-04 282 3.0+/- 0.4; -0.6+/-0.3 ;0.4 09-10-04 281 2.6 +/- 0.4; 0.4 + 0.4 ;0.4 03-18-04 240 1.6 0.4; 09-17-04 287 2.4 + 0.4; 03-26-04 330 2.3 0.3; 0.1I+/- 0.4 ;0.4 09-24-04 285 3.1 +/- 0.4; -0.4+/-0.3 ;0.3 1st Qtr. Mean+/-s.d. 3.0 +/-0.7 0.1+/- 0.5 3rd Qtr. Mean+/-s.d. 2.4 +/-0.4 0.2+/- 0.4 04-02-04 294 1.5 +/- 0.3; 10-01-04 289 2.1 +/- 0.3; 04-09-04 274 2.4 +/- 0.4; -0.2 +/- 0.4 ;0.4 10-08-04 280 2.8 +/- 0.4; 0.6+/-0.4 ;0.4 04-16-04 285 2.0+ 0.4; 10-15-04 283 2.0 +/- 0.3; 04-23-04 283b 11.1 +/- 0.7; 0.2+/- 0.3 ;0.3 10-22-04 286 1.6+/- 0.3; 0.7+/-0.4 ;0.4 04-30-04 285 1.6 0.3; 10-29-04 281 3.8+/-0.4; 05-07-04 286 2.0 0.3; -1.0+0.4;0.4 11-05-04 288 2.0 +/- 0.4; 0.2 +/- 0.3 ;0.3 05-14-04 284 2.2 +/- 0.4; 11-12-04 285 2.8 +/- 0.4; 05-21-04 286 1.7 +/- 0.3; -0.1 + 0.3 ;0.3 11-19-04 280 3.5 +/- 0.4; -0.5 + 0.3 ;0.4 05-28-04 284 1.2 + 0.3; 11-26-04 285 2.7+/-0.4; 06-04-04 282 1.5 +/- 0.3; -0.7+/- 0.3 ;0.3 12-03-04 285 2.7 0.4; 0.7+/-0.3 ;0.3 06-11-04 288 2.0 0.4; 12-10-04 285 4.2 0.5; 06-18-04 283 1.7 0.3; -0.3+/-0.4 ;0.4 12-17-04 285 3.1+/-0.4; 0.8 +/- 0.4 ;0.4 06-25-04 284 1.5 0.3; 12-24-04 285 2.2+/-0.4; 12-31-04 286 3.3 +/- 0.4; 0.1 +/- 0.3;0.3 2nd Qtr. Mean+/-s.d. 2.5 +/-2.6 -0.4+/- 0.4 4th Qtr. Meanss.d. 2.8 +0.8 0.4+/- 0.5

• Volume based on a two weck collection period.

'Gross beta recounted with a result of 10.3+/-0.6 pCi/m3. Particulate matter on filter was very heavy.

III-12

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates - Continuous; weekly exchange Iodine cartridges - Continuous; biweekly exchange Required LLD: Gross Beta = 0.01, I-131 = 0.07 pCi/m' Units: 10.2 pCi/rr?

D-12 (C) Lisbon Date Volume Gross Date Volume Gross Collected (m') Beta 1-131' Collected (md) Beta 1-131' 01-02-04 288 3.1+0.4; 0.7+/-0.4 ;0.4 07-02-04 285 2.2+/-0.3; -0.6+/- 0.3 ;0.3 01-09-04 282 3.7+/-0.4; 07-09-04 285 2.4+/- 0.4; 01-16-04 280 3.1 +/- 0.4; 0.5+/-0.3 ;0.3 07-16-04 284 1.8+/-0.3; 0.5+/-0.3 ;0.3 01-23-04 285 2.2+/-0.4; 07-23-04 285 2.2+/- 0.4; 01-29-04 242 2.6 +/-0.4; -0.5 0.4 ;0.4 07-30-04 285 1.8+/- 0.4; 0.2+/- 0.3 ;0.3 02-06-04 328 3.9+/-0.4; 08-06-04 270b 3.0+/-0.4; 02-13-04 284 3.9+/-0.4; 0.2+/-0.3 ;0.3 08-13-04 304 1.4+/- 0.3; 0.6+/- 0.3 ;0.3 02-20-04 285 2.7 +/- 0.4; 08-20-04 279 1.9+/- 0.4; 02-27-04 286 2.3+/-0.3; -0.7 + 0.4 ;0.4 08-27-04 287 1.8+/-0.3; -0.3 +/- 0.3 ;0.3 03-05-04 281 1.6 +/- 0.3; 09-03-04 271 2.0 +/- 0.3; 03-12-04 282 2.8+0.4; 0.1 0.3 ;0.3 09- 10-04 282 3.4+/-0.4; 0.7+/- 0.3 ;0.3 03-18-04 236 1.5+/-0.4; 09-17-04 287 2.6+/- 0.4; 03-26-04 330 1.9+/-0.3; 0.64 0.3 ;0.4 09-24-04 285 3.2+/-0.4; -0.1 +/- 0.3 ;0.3 1st Qtr. Mean+/-s.d. 2.7 40.8 0.1+/- 0.5 3rd Qtr. Mean+/-s.d. 2.3 +/-0.6 0.1+/- 0.5 04-02-04 292 1.6 +/-0.3; 10-01-04 289 1.9 +/- 0.3; 04-09-04 276 2.0+/- 0.4; 0.1 +/- 0.3 ;0.3 10-08-04 280 2.6+ 0.4; -0.5+/- 0.3 ;0.3 04-16-04 285 1.6+/- 0.3; 10-15-04 301 2.0+0.3; 04-23-04 285 1.8+/-0.4; -0.9 0.4 ;0.4 10-22-04 273 1.9 0.3; -0.3 +/- 0.3 ;0.3 04-30-04 285 1.7+/- 0.3; 10-29-04 285 3.0 0.4; 05-07-04 286 2.0+/- 0.3; 0.2+/- 0.3 ;0.3 11-05-04 287 1.8 0.4; -0.6+/-0.4;0.4 05-14-04 284 2.1+/- 0.4; 11-12-04 231' 2.7+/-0.5; 05-21-04 286 1.5 +/- 0.3; -0.4+/- 0.4 ;0.4 11-19-04 285 3.3 0.4; -0.1 + 0.4 ;0.4 05-28-04 285 1.1 +/- 0.3; 11-26-04 285 2.1 0.3; 06-04-04 284 1.5+/-0.3; -0.3 +/- 0.3 ;0.4 12-03-04 285 2.5 +/- 0.4; 0.0+/- 0.3 ;0.3 06-11-04 279b 2.2+/- 0.4; 12-10-04 285 2.9 0.4; 06-18-04 283 1.8+/- 0.3; -0.2 +/- 0.4 ;0.4 12-17-04 285 2.9 0.4; 0.1 +/- 0.3 ;0.3 06-25-04 290 1.3+/- 0.3; 12-24-04 285 2.0 +/- 0.4; 12-31-04 286 3.2+/- 0.4; -0.1 +/- 0.3 ;0.3 2nd Qtr. Meanss.d. 1.7 40.3 -0.3+/- 0.4 4th Qtr. Mean+/-s.d. 2.5 +/-0.5 -0.2+/- 0.3

• Volume based on a two weck collection period.

'Volume slightly low, possibly due to storms in area.

' Volume low; low mcter reading of 136.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> due to work on line.

III-13

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates - Continuous; weekly exchange Iodine cartridges - Continuous; biweekly exchange Required LLD: Gross Beta = 0.01, I-131 = 0.07 pCi/mr Units: 10 2 pCi/mn D45 McKinley Woods Road Date Volume Gross Date Volume Gross Collected (m') Beta 1-131' Collected (m') Beta I-131' 01-02-04 288 3.1 +/- 0.4; -0.1 + 0.3 ;0.3 07-02-04 281 2.3 +/- 0.3; -0.3 +/- 0.3 ;0.3 01-09-04 277 3.9+/-0.4; 07-09-04 284 2.3 +/- 0.4; 0 1-16-04 285 3.0 +/- 0.4; -0.3 + 0.3 ;0.3 07-16-04 286 1.6 0.3; -0.5 +/- 0.3 ;0.3 01-23-04 285 2.6 0.4; 07-23-04 281 2.8 +/- 0.4; 01-29-04 242 2.8+/- 0.4; 0.4+/-0.3 ;0.3 07-30-04 285 2.1 +/- 0.4; -0.7+/- 0.4 ;0.4 02-06-04 328 3.9 +/- 0.4; 08-06-04 285 2.8 +/- 0.4; 02-13-04 284 3.6+/-0.4; 0.2+/-0.3;0.3 08-13-04 304 2.2 0.4; -0.2 4 0.3 ;0.3 02-20-04 285 2.6 +/- 0.4; 08-20-04 279 2.5 +/- 0.4; 02-27-04 286 2.3 +/- 0.3; -0.7 4 0.3 ;0.4 08-27-04 290 2.3 +/- 0.4; 1.0+/-0.3 ;0.3 03-05-04 286 2.1 +/- 0.3; 09-03-04 268 1.8 +/- 0.3; 03-12-04 282 2.6 0.3; -0.0+/-0.3 ;0.3 09-10-04 282 2.9+/- 0.4; 0.2 +/- 0.3 ;0.3 03-18-04 240 1.8 0.4; - 09-17-04 287 2.3 0.4; 03-26-04 330 2.1 A 0.3; -0. 14 0.4 ;0.4 09-24-04 285 2.9 +/- 0.4; -0.5 +/- 0.3 ;0.4 1st Qtr. Mean+/-s.d. 2.8 +0.7 -0.1+/- 0.4 3rd Qtr. Mean+/-s.d. 2.4 +/-0.4 -0.1+/- 0.6 04-02-04 292 1.5 +/- 0.3; 10-01-04 287 2.1 +/- 0.3; 04-09-04 272 2.2 +/- 0.4; -0.1 +/- 0.3 ;0.3 10-08-04 282 2.8 +/- 0.4; 0.0 +/- 0.3 ;0.3 04-16-04 285 1.5 0.3; 10-15-04 301 2.1+/-0.3; 04-23-04 285 1.9 0.4; -0.3 4 0.4 ;0.4 10-22-04 268 1.8 +/- 0.3; 0.2 + 0.3 ;0.3 04-30-04 285 2.0 +/- 0.3; 10-29-04 285 2.9 +/- 0.4; 05-07-04 291 2.2 0.3; 0.5+/- 0.3 ;0.3 11-05-04 287 1.8 +/- 0.4; 0.3 +/- 0.4 ;0.4 05-14-04 284 2.4 0.4; 11-12-04 285 2.6 +/- 0.4; 05-21-04 285 1.4 +/- 0.3; -1.0 +/- 0.3 ;0.4 11-19-04 285 2.7 +/- 0.4; -0.5 + 0.3 ;0.3 05-28-04 281 1.0 0.3; 11-26-04 285 2.3 +/- 0.3; 06-04-04 285 1.2 0.3; -0.4 +/- 0.3 ;0.4 12-03-04 285 2.4 0.4; -0.0+/-0.3 ;0.3 06-11-04 287 2.3 0.4; 12-10-04 285 3.7+/-0.4; 06-18-04 283 1.5 + 0.3; 0.24 0.3 ;0.3 12-17-04 285 3.0 0.4; 0.4+ 0.4 ;0.4 06-25-04 284 1.1 + 0.3; - 12-24-04 285 2.7+/-0.4; 12-31-04 286 3.2+/-0.4; -0.3 +0.3 ;0.3 2nd Qtr. Mean+/-s.d. 1.7 +/-0.5 -0.2+/- 0.5 4th Qtr. Mean+/-s.d. 2.6 +/-0.5 0.Gi 0.3

'Volume based on a two week collection period.

III-14

DRESDEN 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' Units: 10.2 pCi/rn3 D-53 Grundy County Road Date Volume Gross Date Volume Gross Collected (m') Beta 1-131' Collected (in') Beta 1-131' 01-02-04 289 3.1 0.4; 0.1 +/- 0.3;0.3 07-02-04 290 2.1 +/- 0.3; -1.0+/- 0.3 ;0.4 01-09-04 285 3.6 0.4; 07-09-04 289 1.9 0.3; 01-16-04 282 2.7 +/- 0.3; -0.4 +/- 0.3 ;0.3 07-16-04 280 1.6 0.3; 1.0+/-0.3 ;0.4 01-23-04 284 2.3 +/- 0.4; 07-23-04 289 2.9 +/- 0.4; 01-29-04 244 2.4 0.4; 0.7+/-0.3;0.4 07-30-04 284 2.2 +/- 0.4; 0.3+/-0.4 ;0.4 02-06-04 333 4.3 +/- 0.4; 08-06-04 284 2.3 +/- 0.4; 02-13-04 280 3.5 +/- 0.4; 0.5 +/- 0.3 ;0.3 08-13-04 296 1.9 0.3; 0.7+/- 0.3 ;0.3 02-20-04 284 2.7 +/- 0.4; 08-20-04 279 2.1 +/- 0.4; 02-27-04 283 2.3 +/- 0.3; 0.1 0.3 ;0.3 08-27-04 279 2.1 +/- 0.4; -0.9 +/- 0.3 ;0.4 03-05-04 286 2.3 +/- 0.3; 09-03-04 283 2.4 +/- 0.4; 03-12-04 285 2.9

• 0.4; -0.1 0.3 ;0.3 09-10-04 294 2.7 0.4; -0.4 + 0.3 ;0.3 03-18-04 238 1.4 0.4; 09-17-04 276 2.1 A 0.4; 03-26-04 335 2.5 i 0.3; 0.5 +/- 0.3 ;0.3 09-24-04 279 3.1

• 0.4; 0.5+/-0.3 ;0.4 Ist Qtr. Meanis.d. 2.8 +/-0.7 0.2L 0.4 3rd Qtr. Mean+/-s.d. 2.3 +/-0.4 0.0+/- 0.8 04-02-04 283 1.2 +/- 0.3; 10-01-04 292 2.1 +/- 0.3; 04-09-04 283 2.0 X 0.3; 0.5 +/- 0.3 ;0.3 10-08-04 280 2.2 +/- 0.3; 1.2+0.3 ;0.4 04-16-04 285 1.9 0.4; 10-15-04 294 1.9 +/- 0.3; 04-23-04 285 2.0 0.4; 0.6+/-0.3;0.4 10-22-04 273 1.7 0.3; -0.2* 0.3 ;0.3 04-30-04 284 1.9 +/- 0.3; 10-29-04 288 3.2+/-0.4; 05-07-04 288 1.6 0.3; 0.2+/-0.3 ;0.3 11-05-04 291 1.8 0.3; 0.5

• 0.3 ;0.3 05-14-04 NS' - 11-12-04 285 2.9 0.4; 05-21-04 NS' - -1.3+/- 1.0;1.0 11-19-04 279 3.1+/-0.4; -0.1 +/- 0.4 ;0.4 05-28-04 285 0.8 +/- 0.3; 11-26-04 287 2.6 +/- 0.3; 06-04-04 287 1.0 0.3; -1.4 X 0.3 ;0.4 12-03-04 287 2.2 +/- 0.4; -0.0+/- 0.3 ;0.3 06-11-04 285 2.0+/-0.4; 12-10-04 284 3.3 0.4; 06-18-04 282 1.5 0.3; 0.1+/-0.3 ;0.3 12-17-04 282 2.9 +/- 0.4; -0.9* 0.4 ;0.4 06-25-04 286 1.1 +/- 0.3; - 12-24-04 287 2.3 0.4; 12-31-04 288 3.4+/-0.4; 0.4+/- 0.3 ;0.3 2nd Qtr. Meanss.d. 1.5 +/-0.4 -0.2+/- 0.9 4th Qtr. Meanss.d. 2.5 +/-0.6 0.1+/- 0.6

• Volume based on a two week collection period.

"'NS" = No sample; electric offdue to blown fuse; collector replaced fuse.

• Low volume due to pump malfunction; not enough runtime for viable air particulate; charcoal volume = 169 m' - two week run.

III-15

DRESDEN Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCi/r Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCi/mr 3

Units: 104 pCi/r Sample Description and Concentration D-01 Onsite Station I 2004 Collection Ist Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code CDAP-1992 CDAP-4332 CDAP-6544 CDAP-7855 Volume 3,714 3,705 3,704 4,000 Mn-54 -10.4* 11.5; 11.7 4.0*5.2; 5.2 -6.2 4 7.0; 7.1 -0.3*6.1 ;6.1 Fe-59 -10.4* 11.5; 11.7 6.2 + 7.0 ; 7.1 16.5 + 11.9; 12.2 -4.7 + 8.4; 8.4 Co-58 -9.9 +/- 5.6 ; 5.9 6.2*4.9 ;5.0 2.7* 5.4; 5.5 5.6* 5.1 ;5.2 Co-60 2.8S5.1 ;5.1 -1.5 4 5.4 ; 5.4 -8.1

• 7.5; 7.6 -1.2* 6.3 ;6.3 Zn-65 12.0* 10.2; 10.4 4.9 +/- 10.4 ; 10.4 -2.5* 10.6; 10.6 14.6 +/- 8.3 ; 8.7 Nb/Zr-95 -11.9 *6.3; 6.6 -1.4 +5.6; 5.6 1.2 *5.3; 5.3 -9.2 a5.4; 5.7 Cs-134 -3.9 +/- 8.5 ; 8.5 4.2 4 5.5 ; 5.5 -11.2*7.7 ;8.0 4.3 +/- 6.2 ; 6.2 Cs-137 -0.1 5.8; 5.8 -0.9

• 6.9 ; 6.9 -3.6

• 6.8 ; 6.8 -1.2 +/- 5.9; 5.9 Ba/La-140 -10.0 +/- 4.9;5.2 21.3 4 3.0;4.9 7.7 + 7.9;8.0 40.1

• 5.6;9.1 D-02 Onsite Station 2 2004 Collection Ist Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code NS NS NS NS Volume Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 Cs-134 Cs-137 Ba/La-140 NS"= No sample; power out.

11-16

DRESDEN Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCi/r' Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCi/r' Units: 104 pCi/r' Sample Description and Concentration D-03 Onsite Station 3 2004 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code CDAP-1993 CDAP-4333 CDAP-6545 CDAP-7856 Volume 3,702 3,203 3,412 3,995 Mn-54 4.9+/-5.9 ;6.0 0.4 4 6.5 ; 6.5 8.0 +/- 6.8 ; 7.0 -1.4 +/- 5.9; 5.9 Fe-59 11.6+/-5.7 ;6.0 -10.0+/- 13.7; 13.8 -26.2 +/- 10.9; 11.8 5.7+/- 8.6; 8.6 Co-58 0.8+/-5.7 ;5.7 -4.8 +/- 5.8 ; 5.8 3.2+/-4.8 ;4.9 3.7+/-4.4 ;4.4 Co-60 4.5+/-5.7;5.7 2.2 +/- 5.6 ; 5.6 0.3 +/- 6.4 ; 6.4 2.0+/-7.1 ;7.1 Zn-65 -10.5 +/- 12.4 ; 12.5 -0.9 + 12.7; 12.7 -0.9+/- 11.9; 11.9 -10.2 +/- 12.8; 12.9 Nb/Zr-95 -4.4 +/-4.8; 4.9 1.4 +/-6.1; 6.1 -1.6 +/-6.1; 6.1 0.9 +/-4.9; 4.9 Cs-134 -1.4+/-6.6 ;6.6 8.4+/-5.6 ;5.8 -0.2 +/- 8.0 ; 8.0 -0.4 +/- 4.7 ; 4.7 Cs-137 1.6+/- 5.7 ;5.7 -2.7 +/- 6.8 ; 6.8 -4.9 +/- 6.3 ; 6.3 -1.6 +/-5.5; 5.5 Ba/La-140 -1.4 +/- 5.4;5.4 -94.9 +/- 10.4; 19.8 -99.0 +/- 11.4 ;21.0 -26.9 +/- 5.4;7.2 D-04 Collins Road 2004 Collection I st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code CDAP- 1994 CDAP-4334 CDAP-6546 CDAP-7857 Volume 3,553 3,714 3,684 4,004 Mn-54 4.8 +/- 5.5 ; 5.6 -2.8+/- 6.1 ;6.1 3.7+/- 5.7 ;5.7 2.8 +/-4.0 ;4.0 Fe-59 7.3+/-9.6;9.7 2.5411.4; 11.4 -2.6+/- 11.2; 11.2 -4.7 +/- 8.4 ; 8.4 Co-58 -5.1 +/-5.6 ; 5.6 -2.545.2 ;5.2 5.6+/-4.3 ;4.4 -0.1 +/- 5.6 ; 5.6 Co-60 1.2+ 6.4 ;6.4 3.8 +/- 6.8 ; 6.9 1.2+/- 6.2 ;6.2 0.9 +/- 4.2 ; 4.2 Zn-65 14.3+/- 11.0; 11.3 1.6 + 12.9; 12.9 12.3 +/- 10.2; 10.5 8.0 +/- 8.5 ; 8.6 Nb/Zr-95 -10.0 +6.3; 6.5 -4.4 + 6.5 ; 6.5 11.5 +/-5.3; 5.7 -6.3 +/-5.0; 5.1 Cs-134 -1.5 + 6.9; 6.9 -5.3+/-5.8 ;5.9 9.2+/-4.6 ;4.9 1.2+/- 6.1 ;6.1 Cs-137 3.3 +/-6.2;6.3 1.7+/- 5.3 ;5.3 -2.5 +/- 6.6 ; 6.6 2.545.1 ;5.1 Ba/La-140 -51.0 + 10.0; 13.5 -1.8 +/- 5.4;5.4 9.8 +/- 5.8;6.1 -27.7 +/- 7.3 ; 8.8 III -17

DRESDEN Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCi/m' Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCilrn Units: 104 pCilrn Sample Description and Concentration D-07 Clay Products 2004 Collection I st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code CDAP-1995 CDAP-4335 CDAP-6547 CDAP-7858 Volume 3,711 3,706 3,698 3,991 Mn-54 1.246.3 ;6.3 3.4+/-5.0;5.1 -2.2 +/- 7.2 ; 7.2 4.74 5.3; 5.4 Fe-59 -14.0 +/- 9.5; 9.9 -11.2+/- 11.6; 11.7 -16.5+/- 11.0; 11.4 -0.9+/-9.1 ;9.1 Co-58 -1.2 +/- 6.7; 6.7 -2.6 +/- 5.7; 5.7 4.9 +/- 3.5 ; 3.6 -1.1 +/- 4.0 ; 4.0 Co-60 7.2+/- 6.4 ;6.5 3.7+/-5.4 ;5.5 -2.9 +/- 7.6 ; 7.6 2.6+/-4.7 ;4.8 Zn-65 7.2+/- 12.7; 12.8 -6.5+/- 11.6; 11.6 6.6+/- 10.8; 10.8 6.6 +/- 8.2 ; 8.3 Nb/Zr-95 0.9 +5.8; 5.8 1.4 +4.9; 4.9 0.2 +/-4.8; 4.8 -13.1 +/-6.1; 6.5 Cs-134 0.6 + 6.5 ; 6.5 4.8 + 6.2 ; 6.2 -5.4 +/- 6.4 ; 6.5 -0.1 4 6.4 ; 6.4 Cs-137 6.6 +/- 5.3 ; 5.4 -1.2 +/- 5.6 ; 5.6 -2.2 +/- 7.7 ; 7.7 -0.1 +/- 5.4 ; 5.4 Ba/La-140 34.6 4 4.3; 7.5 21.5 +/- 3.0;4.9 -125.1 +/- 8.1 ;23.7 -0.8 +/- 5.0;5.0 D-12(C) Lisbon 2004 Collection Ist Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code CDAP-1996 CDAP-4336 CDAP-6548 CDAP-7859 Volume 3,697 3,708 3,696 3,949 Mn-54 4.6+/-5.3 ;5.4 1.8+/- 7.3 ;7.3 -0.6 +/- 4.9 ; 4.9 6.2+/-4.7 ;4.9 Fe-59 4.7 +/- 8.9 ; 8.9 18.6 +/- 9.0 ; 9.6 14.0 +/- 8.2; 8.6 4.8 +/- 11.4 ; 11.4 Co-58 -6.5 +/-5.1; 5.2 3.0+/- 3.8 ;3.8 -1.5 +/-4.9 ;4.9 -2.8 +/- 4.8 ; 4.8 Co-60 3.74 5.4; 5.5 -3.1 +/- 6.3 ; 6.3 8.0+/-5.2; 5.4 5.1 +/-5.5 ; 5.6 Zn-65 12.9 +/- 12.3 ; 12.5 -2.4 +/- 10.6; 10.6 0.8+/- 11.4; 11.4 3.7 +/- 7.4; 7.4 Nb/Zr-95 4.2 +/-6.0; 6.1 -10.2 +/-5.6; 5.9 2.5 +5.5; 5.5 -6.4 +/-5.1; 5.2 Cs-134 3.5 +/-6.0;6.0 5.0+/-5.0;5.1 5.6 + 5.8 ; 5.8 3.5 +/-3.7;3.8 Cs-137 1.2+/- 5.2 ;5.2 1.1+/- 5.6 ; 5.6 5.2 +/-4.5 ; 4.6 3.8 +/- 4.0 ; 4.0 Ba/La-140 7.2 + 5.8;5.9 -14.4 +/- 7.3;7.7 21.6 +/- 6.2 ;7.3 -6.0 +/- 4.6;4.7 III -18

DRESDEN Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCi/m' Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCi/m' Units: 10 4 pCi/rn Sample Description and Concentration D-45 McKinley Woods Road 2004 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code CDAP-1997 CDAP-4337 CDAP-6549 CDAP-7860 Volume 3,706 3,705 3,702 3,998 Mn-54 2.4+/-5.5 ;5.5 -1.8 + 5.8 ; 5.8 -1.5 +/- 6.4 ; 6.4 -0.6 4 5.6 ; 5.6 Fe-59 -4.7 +/- 10.9 ; 10.9 2.5 +/- 11.5; 11.5 -5.1 +/- 10.9 ; 10.9 15.2+/- 10.1 ; 10.4 Co-58 4.9+/- 5.3; 5.4 -9.4 + 5.2 ; 5.5 3.9+/-4.0 ;4.0 -8.7 + 5.9; 6.1 Co-60 2.1 +/- 6.4 ; 6.4 -1.3 + 6.8; 6.8 -4.0+/-6.1 ;6.1 5.8 +/- 5.6 ; 5.7 Zn-65 1.6+/-9.1 ;9.1 2.4+/- 11.7; 11.7 -5.7 +/- 9.7 ; 9.8 -2.9+ 11.4; 11.4 Nb/Zr-95 4.2 +/-6.0; 6.1 5.6 +/-3.8; 3.9 -2.5 +/-5.1; 5.1 6.2 +/-5.1 ; 5.2 Cs-134 -2.5 + 5.3 ; 5.3 -5.8 + 7.7 ; 7.8 9.1 +/-4.6 ;4.8 -4.5 +/- 6.4 ; 6.5 Cs-137 0.5+/-5.4 ;5.4 4.6+/-4.4 ;4.5 1.2+/-5.2;5.2 -1.2+/-5.6;5.6 Ba/La-140 -1.5 + 5.4;5.4 -36.1 4 6.6;9.2 -127.8 +/- 9.9;24.8 4.3 +/- 5.4;5.4 D-53 Gnndv County Road 2004 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code CDAP-1998 CDAP-4338 CDAP-6550,1 CDAP-7861 Volume 3,715 3,139 3,709 4,006 Mn-54 0.94 5.7 ;5.7 -0.7+/- 7.1 ;7.1 1.4 +/-4.3 ;4.3 -3.9 +/- 5.9 ; 6.0 Fe-59 2.348.1 ;8.1 22.0 +/-10.7; 1 1.4 -5.3 +/- 8.5 ; 8.6 -2.8 +/- 8.7 ; 8.7 Co-58 3.6+/- 4.5 ;4.6 11.3 46.4;6.7 -1.5+/-3.4 ;3.4 1.1+/- 3.2 ; 3.2 Co-60 0.4 4 7.2 ; 7.2 -2.4 +/- 9.2 ; 9.2 -2.6 +/- 5.0; 5.0 4.3 +/- 6.5 ; 6.5 Zn-65 4.8+/- 10.4;10.4 -20.2 +/- 12.9; 13.4 -0.0+/- 10.2; 10.2 -6.5 4 12.0; 12.1 Nb/Zr-95 2.2 +/-5.4; 5.5 -9.7 +/-7.8; 7.9 -7.5 +/-4.2; 4.4 -1.0 +/-5.2; 5.2 Cs-134 8.0 +/- 6.8 ; 6.9 -3.8+/-6.7;6.8 1.4 +/-4.5 ;4.5 0.6 +/- 6.0 ; 6.0 Cs-137 0.4 +/- 6.3 ; 6.3 1.4+/-6.1 ;6.1 -0.2 +/- 4.4 ; 4.4 0.244.1 ;4.1 Ba/La-140 -11.6 + 7.3;7.5 -4.3 +/- 9.0;9.0 -66.4 +/- 4.9; 12.8 -0.9 +/- 5.0;5.0 III -19

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

Monthly (November - April)

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

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Nb/Zr-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration D-25 (C) Vince Biros Farm Date Collected 01-02-04 02-05-04 03-04-04 04-02-04 Lab Code CDMI-5 CDMI-516 CDMI-907 CDMI-1382 1-131 0.05 +/-0.12 ;0.12 -0.06 + 0.14 ;0.14 -0.10+/-0.15 ;0.15 -0.1640.19 ;0.19 Mn-54 -0.6 + 2.6 ; 2.6 0.5+/-4.0 ;4.0 1.5+/-2.7 ;2.7 2.3 +/- 4.3 ; 4.3 Fe-59 4.2 +/- 4.2 ; 4.2 -12.8 +/- 8.4 ; 8.6 -0.2+/-5.1 ;5.1 -6.9 +/- 9.6 ; 9.7 Co-58 -0.2 +/- 2.4; 2.4 2.8 +/- 3.8 ; 3.8 0.5 +/- 2.3 ; 2.3 -2.3 4 4.8 ; 4.8 Co-60 0.1 + 2.4 ; 2.4 1.8+/-4.9; 4.9 -2.0 4 2.6; 2.6 -3.1 +/- 4.7 ; 4.7 Zn-65 -2.0 +/- 6.0; 6.1 -10.3 +/- 8.9; 9.0 -2.4 +/- 5.4; 5.4 -4.6 +/- 9.7; 9.7 Nb/Zr-95 -2.3+/- 2.2 ;2.3 0.5+/- 3.5 ;3.5 -2.0+/-2.2 ;2.3 -0.3+/- 4.0 ;4.0 Cs-134 1.6+/-2.3 ;2.3 1.1 +/-4.4 ;4.4 0.1+/- 2.4 ; 2.4 5.2+/-4.9 ;4.9 Cs-137 -2.3+/-2.2 ;2.2 1.0+/-3.6;3.6 0.5 + 2.4 ; 2.4 -0.6+/-3.6 ;3.6 Ba-140 2.2 +/- 8.0 ; 8.0 -3.3 +/- 12.6; 12.6 -7.9 +/- 8.4 ; 8.5 -2.2+/- 12.4; 12.4 La-140 0.4 +/-2.4 ; 2.4 -1.7 +/-2.8; 2.8 -1.0 +/-1.7 ; 1.7 2.5 +/-4.1; 4.1 Date Collected 05-06-04 05-20-04 06-03-04 06-17-04 Lab Code CDMI-2191 CDMI-2496 CDMI-2758 CDMI-3052 I-131 0.01 +/-0 .14 ;0.14 -0.09 +/- 0.20 ; 0.20 -0.10 +/-0.17 ;0.17 0.17 40.25 ;0.25 Mn-54 -0.6 +/- 2.4 ; 2.4 -2.0 + 2.2 ; 2.2 -1.4 +/-3.8; 3.8 2.3 +/- 3.8 ; 3.8 Fe-59 -1.5+/-5.1 ;5.1 -3.1 + 5.4; 5.4 0.4 + 6.9 ; 6.9 9.8 +/- 8.6 ; 8.7 Co-58 -0.5 +/- 2.3 ; 2.3 0.5+/-1.9; 1.9 -1.0+/-4.1 ;4.1 5.8 +4.1 ;4.2 Co-60 2.2 +/- 2.3; 2.3 1.1 +/- 2.5 ; 2.5 4.6+/-3.6; 3.6 3.5+/-4.4; 4.5 Zn-65 -1.2 +/- 4.7; 4.7 -1.1+/-6.4; 6.4 4.5+/-8.9; 9.0 2.3 +/- 10.0; 10.0 Nb/Zr-95 1.3+/-2.1 ;2.1 -1.3+/- 2.3 ;2.3 -0.5+ 3.4 ;3.4 -0.6 + 3.3; 3.3 Cs-134 -0.3 +/- 2.9 ; 2.9 -0.4 + 2.4 ; 2.4 -0.9 +/- 4.8 ; 4.8 2.5+/-5.4;5.4 Cs-137 0.7 + 2.4 ; 2.4 -2.1 +/-2.7 ; 2.7 -1.8+ 3.5 ;3.5 1.2 +/-4.4 ;4.4 Ba-140 8.0+/-8.6; 8.7 7.9 +/- 7.8 ; 7.9 -11.8+/- 12.1 ; 12.2 -14.9+/- 14.3; 14.4 La-140 0.7 +/-2.1; 2.1 -4.2 42.3 ; 2.3 2.2 +3.0 ; 3.0 4.9 44.2 ; 4.3 II1-20

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

Monthly (November - April)

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

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Nb/Zr-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration D-25 (C) Vince Biros Farm Date Collected 07-01-04 07-15-04 07-29-04 08-11-04 Lab Code CDMI-3336 CDMI-3804 CDMI-4160 CDMI-4554 1-131 0.02 i 0.20 ; 0.20 -0.17 +0.15 ;0.15 -0.18 +/-0.23 ;0.23 0.07 + 0.17 ;0.17 Mn-54 1.8+/-2.3 ;2.3 -0.2 +/- 3.3; 3.3 -2.6+/-3.5 ;3.5 -3.3 +/- 3.9 ; 4.0 Fe-59 4.6+/-4.8 ;4.8 3.4+/-6.1 ;6.1 5.2+/-5.9 ;5.9 -5.7 +/- 8.3; 8.4 Co-58 -1.2 +/- 2.4; 2.4 2.14 2.9 ; 2.9 2.2+/-3.5 ;3.5 -0.3 +/- 3.2; 3.2 Co-60 -0.12.5; 2.5 2.0 +/- 3.2; 3.3 -0.3 +/- 4.6; 4.6 2.04 4.1 ; 4.1 Zn-65 -0.8 +/- 5.8; 5.8 -7.9 +/- 7.9; 7.9 -2.4 +/- 7.9; 7.9 -9.3 +/- 7.8 ; 7.9 Nb/Zr-95 -0.9+/- 2.4 ;2.4 -0.1I2.4 ;2.4 -0.7+/- 3.9 ;3.9 0.3+ 3.7 ;3.7 Cs-134 1.2+/-2.4 ;2.4 -0.5 +/- 3.2; 3.2 0.1 +3.8 ;3.8 -1.6 +/- 3.8; 3.8 Cs-137 -1.6+ 2.4 ;2.4 3.2 +/- 2.8 ; 2.8 5.0+/-4.3 ;4.4 2.4 +/- 3.8 ; 3.8 Ba-140 7.0 + 7.8 ; 7.9 -0.4 + 8.9 ; 8.9 5.5 +/- 11.8 ; 11.8 6.8+/- 11.8; 11.9 La-140 -0.3 +/-1.7 ; 1.7 2.0 +/-2.8 ; 2.8 3.5 +2.8 ; 2.9 5.1 +/-2.1; 2.2 Date Collected 08-26-04 09-09-04 09-23-04 10-06-04 Lab Code CDMI-4788 CDMI-5106 CDMI-5423 CDMI-5868 1-131 -0.15 +/-0.18 ;0.18 -0.22 +/-0.18 ;0.18 0.01 40.15 ;0.15 0.08 +/-0.19 ;0.19 Mn-54 0.5 +/- 3.8 ; 3.8 -2.8 +/-2.4 ;2.5 -2.7 +/- 2.7 ; 2.7 -1.1 +/- 4.3 ; 4.3 Fe-59 3.0+/- 7.7; 7.7 3.2+/-5.0;5.0 4.2+/-5.7;5.7 1.7+/- 8.2 ;8.2 Co-58 -0.3+/-3.7 ;3.7 1.0+/- 1.9; 1.9 -0.7 + 3.2 ; 3.2 -0.3 4 3.5 ; 3.5 Co-60 1.5+/-4.4; 4.4 -2.3 +/- 2.8; 2.8 0.8 +/-3.3 ; 3.3 2.2 +/- 4.2 ; 4.2 Zn-65 5.8 +/- 10.1 ; 10.2 -3.4 +/-4.9; 4.9 -7.1 + 7.2 ; 7.3 -13.749.2; 9.4 Nb/Zr-95 -0.2 +/- 3.4; 3.4 -1.7+ 2.2 ;2.2 0.4 +/-3.6 ;3.6 2.4; 3.6 ;3.6 Cs-134 2.0+/-4.6 ;4.6 0.5 + 2.5 ; 2.5 0.5+/-3.9 ;3.9 -0.3 +/-4.3 ;4.3 Cs-137 -1.2 +/-4.2 ;4.2 -3.0 +/- 2.7 ; 2.7 1.1+/- 3.6 ; 3.6 -0.2 +/- 3.5 ; 3.5 Ba-140 -19.0 +/- 11.9; 12.1 2.0 +/- 9.3 ; 9.3 -20.2+/- 13.5 ; 13.8 7.6 +/- 13.0; 13.0 La-140 0.5 +/-4.2 ; 4.2 -1.0 +/-1.9 ; 1.9 1.4 +/-3.2 ; 3.2 -1.6 +/-3.9 ; 3.9 111-21

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

Monthly (November - April)

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

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Nb/Zr-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration D-25 (C) Vince Biros Farm Date Collected 10-21-04 11-04-04 12-02-04 Lab Code CDMI-6279,80 CDMI-6600 CDMI-7102 I-131 0.02 + 0.14 ;0.14 -0.08 + 0.16 ;0.16 0.14 +/- 0.17 ;0.17 Mn-54 0.5 + 2.5 ; 2.5 1.0+/- 3.5; 3.5 2.2 +/- 2.6 ; 2.7 Fe-59 0.1 +4.9 ;4.9 2.9+/-7.1 ;7.2 -2.4 + 4.3 ; 4.3 Co-58 0.8 +/- 2.3 ; 2.3 3.2 +/- 3.6 ; 3.6 0.1+/- 2.2 ; 2.2 Co-60 0.6 + 2.2; 2.2 1.1 + 3.8 ; 3.8 0.9+/-2.4; 2.4 Zn-65 0.3+/-5.9; 5.9 -5.0 A 9.6; 9.7 -7.9+/-6.0; 6.1 Nb/Zr-95 0.9+/-2.1 ;2.1 -1.9+/-3.4 ;3.4 -0.8+/- 2.2 ;2.2 Cs-134 1.3 +/-2.7;2.7 1.1I3.9 ;3.9 0.5+/-2.1 ;2.1 Cs-137 0.9+/-2.4 ;2.4 -3.1+/-3.5 ;3.5 0.6 +/- 2.5 ; 2.5 Ba-140 -0.4 + 8.0 ; 8.0 22.2 i 12.1 ; 12.4 -6.3 +/- 7.7 ; 7.7 La-140 2.7 +/-2.2 ; 2.2 8.7 42.9 ; 3.1 -3.3 +/-2.6 ; 2.6 111-22

DRESDEN 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 = 0.13, Cs-137 = 0.15 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, BalLa-140 = 0.30 pCi/g wet weight Units: 10 2 pCi/g wet weight Sample Description and Concentration D-28 Dresden Pool of Illinois River Date Collected 05-18-04 05-18-04 10-05-04 10-05-04 Lab Code CDF-2449 CDF-2450 CDF-5949 CDF-5950 Type Channel Catfish Largemouth Bass Freshwater Drum Largemouth Bass Mn-54 0.4+/-0.9 ;0.9 0.3 +/- 0.7 ; 0.7 0.1 +/- 1.2; 1.2 0.9+/-1.1; 1.1 Fe-59 -1.7 +/- 1.8 ; 1.9 -2.0 +/- 1.6; 1.6 3.1 +/-2.2 ;2.2 0.9 +/- 3.2 ; 3.2 Co-58 0.5 +/- 0.8 ; 0.8 -0.I+/-0.7 ;0.7 -0.8 +/- 1.1; 1.1 -0.1i+/- 1.2 ; 1.2 Co-60 0.3 +/- 1.1 ; 1.1 -0.5 +/- 1.0; 1.0 0.2+/-1.5; 1.5 -1.7 +/- 1.7 ; 1.7 Zn-65 0.5 +/- 2.0 ; 2.0 -2.0 +/- 1.9; 1.9 1.4 +/-2.8 ;2.8 -1.2 +/- 3.4; 3.4 Nb/Zr-95 1.1 +/-0.9 ;0.9 0.3 +/- 0.7 ; 0.7 -0.1 i+/- 1.2; 1.2 2.4+/- 1.2; 1.2 Cs-134 0.6+/- 1.0; 1.0 0.3 +/- 0.8 ; 0.8 0.2 +/- 0.9 ; 0.9 1.5 +/- 1.4 ; 1.4 Cs-137 -0.3 +/- 0.8 ; 0.8 0.5 +/- 0.7 ; 0.7 0.1 +/- 1.2; 1.2 0.1 +/- 1.5; 1.5 Ba/La-140 2.9 +/- 0.8 ; 0.9 2.8 +/-0.4 ;0.5 6.6+/-1.5; 1.7 -7.4 1.6 ; 1.9 m-23

DRESDEN 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 = 0.13, Cs-137 = 0.15 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10 2 pCilg wet weight Sample Description and Concentration D-46 (C) Des Plaines River. Upstream Date Collected 05-18-04 05-18-04 10-05-04 10-05-04 Lab Code CDF-2447 CDF-2448 CDF-5951 CDF-5953 Type Channel Catfish Largemouth Bass Largemouth Bass Carp Mn-54 -0.3 +/- 1.2; 1.2 -0.3 +/- 1.0; 1.0 0.9 +/- 0.9 ; 0.9 0.4 +/- 0.9 ; 0.9 Fe-59 -2.5 +/- 2.6 ; 2.6 -1.1 +/- 1.8; 1.8 -1.3 +/- 1.7 ; 1.7 1.3+/-1.9;1.9 Co-58 1.0i 1.3; 1.3 -0.4 +/- 0.8 ; 0.8 -0.6 +/- 0.7 ; 0.7 -0.2 +/- 0.8 ; 0.8 Co-60 0.0 +/- 1.8 ; 1.8 -0.2 +/- 0.9 ; 0.9 -1.1 +/-0.9;0.9 0.5+/- 1.2; 1.2 Zn-65 -6.0 +/- 3.5; 3.6 -1.2+/-2.3 ;2.3 -0.5 +/-1.5; 1.5 -2.3 +/- 2.3 ; 2.4 Nb/Zr-95 -0.6+/- 1.1 ; 1.1 -0.7 +/- 0.9 ; 0.9 -0.4 +/- 0.8 ; 0.8 -0.3 +/- 0.8 ; 0.8 Cs-134 0.8 +/- 1.4 ; 1.4 -1.1 +/- 1.0 ; 1.0 -0.3 +/- 1.0; 1.0 -0.0 +/- 1.0; 1.0 Cs-137 0.2+/- 1.2; 1.2 -0.2 +/- 0.8 ; 0.8 0.1 +/- 0.9 ;0.9 -0.2 +/- 0.9 ; 0.9 Ba/La-140 1.1 +/- 1.5; 1.5 0.6 +/- 0.8 ; 0.8 1.7 +/-0.6 ;0.6 -3.3 +/- 1.2; 1.3 M-24

DRESDEN Table 5. Bottom Sediments Collection: Semiannually ODCM-Required LLDs: Cs-134 = 0.15, Cs-137 = 0.18 pCilg dry weight Other LLDs: Mn-54 = 0.15; Fe-59 = 0.60; Co-58, Co-60 = 0.10; Zn-65 = 0.60; Zr/Nb-95 = 0.20; Ba/La = 0.60 pCi/g dry weight Units: 10*2 pCi/g dry weight Sample Description and Concentration D-27 Dresden Lock & Dam Date Collected 05-07-04 10-08-04 Lab Code CDBS-2200 CDBS-5888 Mn-54 0.9 4 0.9 ; 0.9 0.8+/-0.8 ;0.8 Fe-59 -0.1 + 2.0 ; 2.0 1.4+/- 1.5; 1.5 Co-58 -1.1 +/- 0.8 ; 0.8 -0.2L+/-0.6 ; 0.6 Co-60 0.7+ 1.0; 1.1 0.1 + 0.8 ; 0.8 Zn-65 0.6+2.1 ;2.1 -3.1 +/-2.2 ;2.2 Nb/Zr-95 -4.3+/- 1.1 ;1.2 -2.9+0.8 ;0.9 Cs-134 -0.0 +/- 1.2; 1.2 0.5 +/- 0.8 ; 0.8 Cs-137 2.0+/- 1.0; 1.0 2.8 + 1.5 ; 1.6 Ba/La-140 1.9+/-0.7 ;0.7 -0.6 + 0.8 ; 0.8 III -25

DRESDEN Table 6. Vegetation Collection: Annually ODCM-Required LLDs: I-131=0.06, Cs-134=0.06, Cs-137=0.08 pCi/g wet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; ZrlNb-95 = 0.01; BalLa-140 = 0.02 pCi/g wet weight Units: 102 pCilg wet weight Sample Description and Concentration D-Control Glasscock Farm Date Collected 09-18-04 09-18-04 Lab Code CDVE-53 10 CDVE-5311 Type Radish Cabbage Mn-54 -0.7 : 0.8 ; 0.8 -0.4L 0.9 ; 0.9 Fe-59 1.1 +/- 1.6; 1.6 -0.8 +/- 1.8; 1.8 Co-58 -0.5 4 0.7 ; 0.7 0.2 +/- 0.8 ; 0.8 Co-60 0.1 4 1.1 ; 1.1 0.5 +/- 0.9 ; 0.9 Zn-65 -0.9 + 2.3 ;2.3 -0.8 4 1.2 ;1.2 Nb/Zr-95 -0.0 4 0.7 ;0.7 -0.4 +/- 0.7 ;0.7 1-131 0.1 i0.7 ;0.7 -0.2 +/- 0.7 ;0.7 Cs-134 0.2 +/- 1.0 ; 1.0 0.2 +/- 0.7 ; 0.7 Cs-137 0.4 +/- 0.9 ; 0.9 0.5 +/-0.9 ; 0.9 BalLa-140 -1.0 +/- 0.9 ;0.9 -0.1 +/- 0.9 ;0.9 Date Collected 09-24-04 09-24-04 Lab Code CDVE-5434 CDVE-5435 Type Potatoes Cabbage Mn-54 0.7 +/- 1.0; 1.0 0.5 +/- 0.7 ; 0.7 Fe-59 -2.2 2.9 ;2.9 1.1 +/- 1.4; 1.4 Co-58 0.1 4 1.1 ; 1.1 0.1 +/- 0.9; 0.9 Co-60 1.1 + 1.0; 1.0 0.3 + 0.8 ; 0.8 Zn-65 -0.9 3.4 ;3.4 -0.6 +/- 1.7 ;1.7 Nb/Zr-95 0.1 + 1.0 ;1.0 -0.1 +/- 0.8 ;0.8 1-131 0.1 +/-0.8 ;0.8 0.5 + 0.7 ;0.7 Cs-134 -0.2 + 1.0; 1.0 -0.5 +/- 0.9 ; 0.9 Cs-137 -0.1 1.2; 1.2 0.2 +/- 0.8 ; 0.8 Ba/La-140 -0.2 +/- 1.0 ;1.0 0.9 +/- 0.6 ;0.6 III -26

DRESDEN 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; ZrlNb-95 = 0.01; BalLa-140 = 0.02 pCitg wet weight Units: 10 2 pCi/g wet weight Sample Description and Concentration D-Ouad I Chris Locknar Date Collected 09-18-04 09-18-04 Lab Code CDVE-5302 CDVE-5303 Type Potatoes Cabbage Mn-54 -0.2 + 0.7 ; 0.7 -0.2 +/- 0.8 ; 0.8 Fe-59 -0.2 +/- 1.9; 1.9 0.5+/- 1.7; 1.7 Co-58 -0.1 +/- 0.7 ; 0.7 0.4E+/-0.8 ; 0.8 Co-60 0.4 +/-0.8 ;0.8 0.2 4 0.7 ; 0.7 Zn-65 -1.9 +/- 2.0 ;2.0 0.4 +/- 1.4 ;1.4 Nb/Zr-95 0.3 : 0.8 ;0.8 0.4 +/- 0.7 ;0.7 I-131 0.6 +/- 0.8 ;0.8 -0.3 + 0.8 ;0.8 Cs-134 0.4 +/- 0.9 ; 0.9 -0.2 + 0.8 ; 0.8 Cs-137 0.1 +/-0.8;0.8 0.3 + 0.7 ; 0.7 BatLa-140 -0.1 +/-0.6 ;0.6 0.5 +/- 0.8 ;0.8 D-Ouad 2 Robert Pagliano Date Collected 09-18-04 09-18-04 Lab Code CDVE-5304 CDVE-5305 Type Carrots Cabbage Mn-54 0.0 +/- 0.7 ; 0.7 0.9 4 0.8 ; 0.8 Fe-59 0.6 +/- 1.3 ; 1.3 0.4 +/-1.5 ; 1.5 Co-58 -0.4 +/- 0.6 ; 0.6 0.1+/- 0.8 ; 0.8 Co-60 0.6 +/- 0.6 ; 0.6 0.0 +/- 0.7 ; 0.7 Zn-65 0.1 +/-2.0 ;2.0 -0.6 +/- 1.9 ;1.9 Nb/Zr-95 0.6 +/- 0.7 ;0.7 0.2 +/- 0.7 ;0.7 I-131 0.8 +/- 0.6 ;0.6 0.1 +/-0.7 ;0.7 Cs-134 0.0 4 0.8 ; 0.8 0.2 +/- 0.7 ; 0.7 Cs-137 0.2 +/- 0.7 ; 0.7 -0.3 +/- 0.8 ; 0.8 BatLa-140 -0.5 +/- 0.7 ;0.7 -0.6 +/- 0.7 ;0.7 III -27

DRESDEN 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 pCilg wet weight Units: 10 pCilg wet weight Sample Description and Concentration D-Ouad 3 Jim Bloom Date Collected 09-18-04 09-18-04 Lab Code CDVE-5306 CDVE-5307 Type Potatoes Cabbage Mn-54 0.2 +/- 0.6 ; 0.6 0.5 +/- 0.7 ; 0.7 Fe-59 0.2 +/-1.6; 1.6 -0.1 +/- 1.2; 1.2 Co-58 -0.3 +/- 0.6 ; 0.6 -0.4 +/- 0.7 ; 0.7 Co-60 -0.2 +/- 0.6 ; 0.6 0.1 +/- 1.0; 1.0 Zn-65 -0.7 +/- 1.6;1.6 0.9 +/- 1.9 ;1.9 Nb/Zr-95 0.5 +/- 0.8 ;0.8 0.1 +/- 0.8 ;0.8 1-131 0.3 +/-0.7 ;0.7 -0.6 +/- 0.7 ;0.7 Cs-134 0.3 +/- 0.9 ; 0.9 -0.6 +/- 0.8 ; 0.8 Cs-137 -0.3 +/- 0.7 ; 0.7 -0.6 +/- 0.7 ; 0.7 Ba/La-140 -0.4 +/- 0.8 ;0.8 -0.2 +/- 0.7 ;0.7 D-Ouad 4 J.D. Carmichael Date Collected 09-18-04 09-18-04 Lab Code CDVE-5308 CDVE-5309 '

Type Rutabagas Rutabaga greens Mn-54 0.4 +/- 0.7 ; 0.7 0.5 +/- 0.7 ; 0.7 Fe-59 0.9+/- 1.7; 1.7 -0.5 +/- 1.3; 1.3 Co-58 0.1+/-0.8 ;0.8 -0.3 +/- 0.6 ; 0.6 Co-60 -0.6 +/- 1.0; 1.0 0.3 +/-0.7 ;0.7 Zn-65 -1.4 +/- 1.7 ;1.7 -1.1 +/-1.8;1.8 Nb/Zr-95 0.1 +/- 0.7 ;0.7 1.4 +/- 0.6 ;0.6 I-131 -0.5 +/-0.7 ;0.7 -0.6 +/-0.8 ;0.8 Cs-134 0.2 +/- 0.8 ; 0.8 -0.2 +/- 0.7 ; 0.7 Cs-137 0.4 +/- 0.7 ; 0.7 0.7 +/-0.8;0.8 Ba/La-140 -0.3 +/- 0.7 ;0.7 -0.4 +/- 0.5 ;0.5

'Nb/Zr-95 result is not a "true" activity peak; actual LLD reached was<0.00965 pCi/L.

111-28

DRESDEN Table 7. Surface Water Collection: Monthly composites of weekly collections Required LLDs: Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15,1-131 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi'L Units: pCi/L Sample Description and Concentration D-51 Dresden Lock & Dam 2004 Collection January February March Period Lab Code CDSW-401 CDSW-815 CDSW-1247 Gross Beta 4.5 + 1.2 ; 1.4 5.8* 1.3 ;1.6 4.8* 1.1 ;1.3 Mn-54 1.5:1 1.7; 1.7 -1.3* 2.0; 2.0 -0.5* 1.8; 1.8 Fe-59 -1.6* 4.0; 4.0 -1.6: 3.6; 3.6 0.5* 2.9; 2.9 Co-58 -0.5+ 1.9; 1.9 -2.7* 1.8; 1.8 1.2* 1.4; 1.4 Co-60 -1.5:41 2.1 2.1 0.3+/- 1.8; 1.8 0.4* 1.8; 1.8 Zn-65 1.7* 3.8 ;3.8 -2.7+/- 4.8 ;4.9 0.7* 3.9; 3.9 Zr-95 -4.3 +/- 4.3; 4.3 1.8+/- 3.9; 3.9 -5.5 +/- 4.5; 4.6 Nb-95 -0.2*2.1 .2.1 -1.1

• 2.1 .2.1 -1.8* 1.8 ; 1.8 1-131 0.8+ 2.0; 2.0 -1.0+ 2.1; 2.1 -2.1+ 1.9; 1.9 Cs-134 0.6:12.1 ;2.1 2.4+/-2.2 ;2.2 0.6* 2.2 ;2.2 Cs-137 0.6:12.1 2.1 1.7*2.1 ;2.1 -0.2* 2.0; 2.0 Ba-140 -0.6+ 8.2 8.2 3.3+/- 8.0; 8.0 0.3+ 7.2; 7.2 La-140 -1.8 +/- 1.9; 1.9 0.2* 2.1 2.1 -0.7* 1.7; 1.7 2004 Collection April May June Period Lab Code CDSW-2124 CDSW-2822 CDSW-3459 Gross Beta 4.4

• 1.2 ; 1.4 4.0+ 1.1 ;1.2 4.6* 1.1; 1.3 Mn-54 -2.1*2.0 2.0 -1.0* 2.1 2.1 0.44 1.7; 1.7 Fe-59 0.8* 3.4 ;3.4 1.0* 4.1 4.1 -2.8* 3.9; 3.9 Co-58 -1.4* 1.9; 2.0 -0.5* 1.5; 1.5 0.9* 1.6; 1.6 Co-60 -0.8* 2.2; 2.2 -0.3* 2.0; 2.0 1.5* 1.6; 1.7 Zn-65 -2.0* 5.1 ;5.1 -3.6* 4.0; 4.0 0.5* 3.8; 3.8 Zr-95 -6.6* 4.9; 5.0 2.8* 4.2; 4.2 -1.4* 4.6; 4.6 Nb-95 -1.3+2.1 .2.1 2.8* 2.0 ; 2.0 1.3* 1.9; 1.9 I-131 -1.3* 2.7; 2.7 3.6* 2.1; 2.2 -2.4* 2.5; 2.5 Cs-134 -0.5+2.1 2.1 1.1* 1.7; 1.7 0.2* 1.9; 1.9 Cs-137 -1.3*2.3 ;2.3 1.1*2.1 2.1 -1.1*2.3 2.4 Ba-140 -8.8* 8.5 ;8.6 15.9* 7.2 ;7.6 6.9* 7.9; 8.0 La-140 -0.4

• 2.2; 2.2 -1.7 +/- 1.8; 1.8 0.5 +/- 2.2; 2.2 III - 29

DRESDEN Table 7. Surface Water Collection: Monthly composites of weekly collections Required LLDs: Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15,1-131 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration D-51 Dresden Lock &-Dam 2004 Collection July August September Period Lab Code CDSW-4448 CDSW-5174 CDSW-5728 Gross Beta 4.5* 1.1 1.3 5.7* 1.2; 1.5 6.8 +/- 1.4 ; 1.7 Mn-54 0.3* 1.7; 1.7 0.5* 1.5; 1.5 -1.1* 1.6; 1.6 Fe-59 2.4* 3.2; 3.2 -2.0* 2.3; 2.3 -0.8* 2.9; 2.9 Co-58 -0.2* 1.9; 1.9 -0.2* 1.1; 1.1 -0.9+ 1.8; 1.8 Co-60 -0.6+/- 1.5; 1.5 0.4* 1.4; 1.4 -0.2+ 1.9; 1.9 Zn-65 -0.4* 2.8; 2.8 -1.0+ 2.8; 2.8 2.1* 3.3 ;3.3 Zr-95 -6.9* 4.2; 4.3 2.8+ 2.5; 2.5 -1.5* 4.1; 4.1 Nb-95 2.0* 1.7; 1.8 0.2* 1.4 ; 1.4 -1.5* 1.9; 1.9 1-131 0.7* 1.9; 1.9 3.0* 1.5; 1.6 1.6* 2.0; 2.0 Cs-134 1.0+/-2.2 ;2.2 -0.3* 1.4; 1.4 -1.1

• 2.1 2.1 Cs-137 0.5*2.1 ;2.1 -1.0: 1.6; 1.6 2.4* 1.7; 1.7 Ba-140 -6.7* 6.4; 6.5 -4.0* 5.0; 5.0 -4.1*6.8 ;6.8 La-140 -0.1 i 2.0; 2.0 0.3* 1.8; 1.8 0.9* 1.9; 1.9 2004 Collection October November December Period Lab Code CDSW-6650 CDSW-7206 CDSW-7714 Gross Beta 7.5* 1.2; 1.6 3.4* 1.0; 1.2 4.6 1.6; 1.8 Mn-54 -2.1 1.7; 1.7 0.4* 1.2; 1.2 1.1*2.0 2.0 Fe-59 3.3* 3.0 ; 3.1 -1.1* 2.0; 2.0 0.4* 3.4; 3.4 Co-58 0.5* 1.5; 1.5 -0.0* 1.1; 1.1 1.4* 1.9; 1.9 Co-60 0.2* 1.7; 1.7 0.4* 1.3; 1.3 1.2* 1.9; 1.9 Zn-65 4.7* 3.5; 3.6 -0.6* 2.5; 2.5 -4.4* 5.1; 5.1 Zr-95 -2.6* 3.5; 3.5 -2.6* 2.9; 2.9 -3.3* 3.7; 3.8 Nb-95 -1.5* 1.6; 1.6 -0.7* 1.2 1.2 -0.94 1.6; 1.6 1-131 2.6* 2.2; 2.2 -0.8* 1.1; 1.1 5.8* 2.0 ; 2.1 Cs-134 -0.6* 1.9; 1.9 0.3* 1.3; 1.3 0.2*2.0 ;2.0 Cs-137 -0.3* 1.8; 1.8 -0.0* 1.4; 1.4 -0.5* 1.8; 1.8 Ba-140 4.0* 6.6; 6.6 5.5*4.2 ;4.3 1.5*6.3 ;6.3 La-140 -1.7* 1.9; 1.9 5.5 +/- 4.2 ; 4.3 0.3* 1.9; 1.9 111-30

DRESDEN Table 7. Surface Water Collection: Monthly composites of weekly collections Required LLDs: Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15, 1-131 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration D-52 (C) DesPlaines River 2004 Collection January February March Period Lab Code CDSW-402,3 CDSW-816 CDSW-1248 Gross Beta 9.1 + 1.2 ; 1.5 6.0* 1.2 ;1.5 3.8+/-0.9 ;1.1 Mn-54 -0.7+/- 1.4; 1.4 -0.54 3.1; 3.1 -0.44 1.9; 1.9 Fe-59 -1.5+ 2.4 ;2.4 -7.3+/- 6.3; 6.4 -0.2+/- 3.9; 3.9 Co-58 0.1+/- 1.0; 1.0 1.1 2.8; 2.8 0.2+/- 1.7; 1.7 Co-60 0.8+/- 1.3; 1.3 0.5+/- 3.7; 3.7 -1.4+/- 1.9; 2.0 Zn-65 -4.0+/- 2.8; 2.8 -4.1+/- 3.7 ;3.8 -1.1+/-3.7 3.7 Zr-95 -1.6+/- 2.7; 2.7 5.0+/- 6.7; 6.8 3.5+ 4.4 ;4.4 Nb-95 0.2+/- 1.2; 1.2 2.6+/- 2.4 2.5 0.6+/- 1.8; 1.8 1-131 2.7+/- 1.6; 1.7 2.3+/- 2.9; 2.9 0.9+ 2.4; 2.4 Cs-134 0.1+/- 1.5; 1.5 1.2+/- 3.2 3.2 1.9+/- 1.7; 1.7 Cs-137 -0.5+/- 1.4; 1.4 0.9+/-3.1 ;3.1 0.9+/- 1.9; 1.9 Ba-140 4.3+/- 5.1; 5.1 0.2+/- 9.9; 9.9 -11.2+/-6.2 ;6.4 La-140 0.2k 1.3; 1.3 -3.0 +/- 3.4; 3.5 -1.8 +/- 1.9; 1.9 2004 Collection April May June Period Lab Code CDSW-2125,6 CDSW-2823 CDSW-3460 Gross Beta 6.5+/-0.9 ;1.2 4.3+/- 1.0 ;1.2 4.7+/- 1.0; 1.2 Mn-54 0.3+/-2.1 ;2.1 0.2+/- 1.9; 1.9 -0.6+/- 1.3; 1.3 Fe-59 1.4+/- 3.1; 3.1 0.6+/- 2.8; 2.8 0.6+/- 2.9 ;2.9 Co-58 -1.5+/- 2.5; 2.5 -1.0+/- 1.4; 1.4 -0.1 1.7; 1.7 Co-60 0.7+/- 2.4; 2.4 -1.0+/- 1.8; 1.8 -0.7+/- 1.9; 1.9 Zn-65 3.5 3.9 ;3.9 -0.2+/- 3.5; 3.5 -4.5+ 3.9 ;3.9 Zr-95 -4.4 4.3; 4.3 1.5+/- 3.6; 3.6 -2.0+/- 3.9; 3.9 Nb-95 -0.4+/- 1.9 ; 1.9 -3.2+/- 1.8; 1.9 -2.0+ 1.9; 2.0 1-131 3.6+ 2.4; 2.5 0.24 2.2; 2.2 -0.3+/- 1.9; 1.9 Cs-134 -1.3+/-2.4 ;2.4 -0.4+/- 1.8; 1.8 -0.2+/- 1.9; 1.9 Cs-137 -0.8+ 2.5 ;2.5 0.6+/- 1.9; 1.9 0.8+/- 1.8; 1.8 Ba-140 -0.4+/- 8.0 8.0 6.6+/-7.1 ;7.2 1.7+/-6.7 ;6.7 La-140 -4.1 +/- 2.9; 3.0 4.8 2.2; 2.3 -4.9 +/- 2.1 ;2.2 III-31

DRESDEN Table 7. Surface Water Collection: Monthly composites of weekly collections Required LLDs: Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15, I-131 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration D-52 (C) DesPlaines River 2004 Collection July August September Period Lab Code CDSW-4449 CD SW-5175 CDSW-5729 Gross Beta 5.2*1.1 ;1.4 7.8+ 1.2; 1.7 7.8* 1.2 ;1.7 Mn-54 0.9* 1.7; 1.7 0.6+/- 1.8; 1.8 -0.6* 2.1; 2.1 Fe-59 5.3* 3.7; 3.8 -2.7+ 3.5; 3.5 1.9* 3.6 ; 3.6 Co-58 2.0* 1.7 ; 1.7 2.1+/- 2.0; 2.0 0.4+/- 1.8; 1.8 Co-60 3.4* 2.2 ;2.2 -1.9+/- 2.3 ;2.4 1.9+/- 2.0 ;2.0 Zn-65 -5.6* 4.0; 4.1 -5.5* 4.6; 4.7 -2.2* 4.3 ;4.3 Zr-95 -0.3

• 4.0; 4.0 -3.0* 4.1; 4.1 1.3* 4.0; 4.0 Nb-95 -2.1*2.1 .2.2 0.5* 2.0 ; 2.0 -0.8* 1.9; 1.9 I-131 3.8* 2.6; 2.7 -9.6+/- 2.7; 3.0 2.9* 2.3; 2.3 Cs-134 0.2*2.2 ;2.2 -0.3+/- 2.0 2.0 0.6* 2.6; 2.6 Cs-137 1.7+/-2.3 ;2.3 -1.0*2.3 ;2.3 0.1* 1.9; 1.9 Ba-140 9.6*8.2 ;8.3 -42.7+/- 8.0; 10.1 -15.2* 8.3; 8.6 La-140 -1.3 +/- 2.0; 2.1 -8.2 +/- 2.1; 2.4 -2.0 +/- 2.3; 2.3 2004 Collection October November December Period Lab Code CDSW-6651 CDSW-7207 CDSW-7715 Gross Beta 9.0* 1.3 ; 1.9 4.8 *1.1; 1.3 7.6* 1.9 ;2.2 Mn-54 -0.2* 1.7; 1.7 -0.1* 2.1 2.1 0.7+ 2.3 ;2.3 Fe-59 4.5* 3.4 ;3.5 2.6* 3.7; 3.7 0.8+ 4.0; 4.0 Co-58 -0.8* 1.7; 1.7 0.2+/- 2.0; 2.0 -0.1 *2.2; 2.2 Co-60 1.8* 2.6; 2.6 0.1* 2.0 ;2.0 0.8* 2.8; 2.8 Zn-65 -1.24 4.0; 4.0 1.0* 4.0; 4.0 -2.9+ 4.8; 4.8 Zr-95 2.5* 4.2; 4.2 1.0* 4.1; 4.1 2.6* 5.1; 5.1 Nb-95 1.1*2.0; 2.0 0.6* 1.8 1.8 -0.5 +/- 2.7 ; 2.7 I-131 -1.0* 1.7; 1.7 1.8* 2.2; 2.2 6.7* 2.1; 2.3 Cs-134 1.0*2.4 ;2.4 -0.1*2.6; 2.6 -0.0* 2.3 ;2.3 Cs-137 -0.2* 2.2 ;2.2 0.442.1 ;2.1 0.8* 2.4 ;2.4 Ba-140 2.6* 7.2; 7.2 4.5 *7.2 ; 7.2 -2.6* 8.5; 8.5 La-140 -4.9 +/- 2.3; 2.4 1.2 *2.4; 2.4 -1.9*2.9; 2.9 III - 32

DRESDEN Table 7. Surface Water Collection: Monthly composites of weekly collections Required LLDs: Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15, I-131 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCifL Units: pCi/L Sample Description and Concentration D-54 (C) Kankakee River 2004 Collection January February March Period Lab Code CDSW-392 CDSW-819 CDSW-1244 Gross Beta 2.2* 1.0; 1.0 2.8* 1.0 ; 1.1 3.5* 1.0 ;1.1 Mn-54 1.3* 1.8; 1.8 -0.7* 2.5; 2.5 0.5+ 1.8; 1.8 Fe-59 0.2* 3.1; 3.1 2.5* 6.5; 6.5 -1.7* 2.7 ; 2.8 Co-58 -1.7* 1.8; 1.8 1.9* 3.8; 3.8 0.2* 1.7; 1.7 Co-60 0.4* 1.2; 1.2 1.0 4.6; 4.6 0.9* 1.8; 1.8 Zn-65 -1.0* 3.3; 3.3 3.4* 7.4 ; 7.5 -1.0* 3.7; 3.7 Zr-95 -1.9* 4.5; 4.5 0.6* 7.6; 7.6 -1.7* 4.2; 4.2 Nb-95 -1.7* 1.8 ; 1.8 1.94 3.3 ;3.3 -1.2* 1.8 1.8 I-131 1.1:41 1.8; 1.8 -6.0* 3.2; 3.3 1.2* 1.8; 1.8 Cs-134 -2.8*2.1 2.2 1.5*3.9 ;3.9 0.24 1.9; 1.9 Cs-137 -0.5*4 2.6; 2.6 1.3*3.2 ;3.2 -0.8+ 2.2; 2.2 Ba-140 -6.54 6.3 ;6.4 12.0*11.9 ; 12.1 10.2* 6.6; 6.7 La-140 -1.7 +/- 1.3; 1.4 -0.1 4.6 ; 4.6 -0.4 +/- 2.4; 2.4 2004 Collection April May June Period Lab Code CDSW-2130 CDSW-2820 CDSW-3446 Gross Beta 2.2* 1.0; 1.0 2.2* 1.2 ;1.3 4.8

• 1.1; 1.3 Mn-54 2.9* 2.6; 2.6 0.5* 3.0; 3.0 -0.7+ 1.7; 1.7 Fe-59 -3.0* 5.9; 5.9 4.8* 4.4 ;4.5 6.1+ 3.2 ;3.3 Co-58 2.14 3.9 ;3.9 -1.3* 2.7; 2.7 -1.6* 1.9; 2.0 Co-60 1.3* 3.4; 3.4 -0.2* 3.5; 3.5 -1.4* 2.1; 2.1 Zn-65 -4.2* 7.8; 7.9 -7.8* 5.7; 5.9 -0.2* 3.5; 3.5 Zr-95 4.4* 6.1; 6.1 -2.5* 5.3; 5.3 2.2+ 4.6; 4.6 Nb-95 -1.0+ 2.9; 2.9 -1.44 2.6 ; 2.6 -4.4

• 2.3; 2.4 1-131 -2.2+ 3.7; 3.7 -4.8* 2.8; 2.8 -14.* 2.4; 3.2 Cs-134 2.743.8 ;3.8 -0.7+/- 2.2 ;2.2 -2.0* 2.3 ;2.3 Cs-137 3.8+ 3.5 ;3.5 -1.9*2.9 ;2.9 -0.3+/- 2.3 ;2.3 Ba-140 -2.6* 12.4 ; 12.4 -3.5+/- 8.9 8.9 15.6*7.4 ;7.7 La-140 -1.0 +/- 4.4; 4.4 0.6*2.1 ;2.1 -1.9 *2.0; 2.1 III - 33

DRESDEN Table 7. Surface Water Collection: Monthly composites of weekly collections Required LLDs: Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15, I-131 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration D-54 (C) Kankakee River 2004 Collection July August September Period Lab Code CDSW-4434 CDSW-5084 CDSW-5908 Gross Beta 3.1*1.1 ;1.2 3.3 +/- 1.0 ; 1.1 4.341.1 ;1.3 Mn-54 1.4+ 3.4; 3.4 1.5+/- 2.1; 2.1 -1.5* 2.5; 2.5 Fe-59 -3.3* 6.8; 6.8 -0.8: 4.6; 4.6 -3.8+/- 5.2; 5.3 Co-58 -2.8+ 2.9 ; 2.9 1.24 2.2; 2.2 -2.8* 2.5; 2.6 Co-60 -2.6* 3.6; 3.6 -0.7* 2.5 ;2.5 0.2* 2.8; 2.8 Zn-65 -1.8* 6.6; 6.7 2.6+ 6.0 ;6.0 -2.4* 5.2; 5.2 Zr-95 1.4* 5.9; 6.0 1.2* 6.0; 6.0 -1.2* 5.9; 5.9 Nb-95 -3.7+ 2.7 2.8 -0.5 + 2.3 ; 2.3 -1.2* 3.0 ; 3.0 I-131 -1.2* 3.5; 3.5 2.24 2.4; 2.5 5.0* 2.6; 2.7 Cs-134 2.5*4.0 ;4.0 0.8+/-2.6; 2.6 0.9+ 2.2 ;2.2 Cs-137 4.1*3.0 ;3.1 -1.0*3.1 3.1 -0.3 3.0 3.0 Ba-140 -23.7+ 11.7 ; 12.1 10.7+ 9.5 ;9.6 12.2* 9.8 ;9.9 La-140 -1.8 +/- 4.0; 4.0 -8.1 + 2.9; 3.1 4.4 +/- 3.9; 3.9 2004 Collection October November December Period Lab Code CDSW-6592 CDSW-7196 CDSW-7712 Gross Beta 4.0

• 1.1 ; 1.2 3.3 + 1.0 ; 1.1 3.4* 1.5 ;1.6 Mn-54 -0.4* 1.5 1.5 0.7* 1.7; 1.7 0.1* 1.5; 1.5 Fe-59 0.3* 3.0; 3.0 -1.8* 3.4 ;3.4 -0.2+ 3.4; 3.4 Co-58 -0.1 1.7; 1.7 -0.1* 1.4; 1.4 1.6* 1.7 ; 1.7 Co-60 -1.8* 1.8; 1.8 -0.7* 2.1; 2.1 1.0+ 1.9; 1.9 Zn-65 -7.7* 3.8; 4.0 2.1* 3.4; 3.4 2.9+ 3.3; 3.3 Zr-95 3.1* 3.6;3.6 -3.4* 4.0; 4.0 -3.2* 3.7; 3.7 Nb-95 0.6* 1.8; 1.8 -3.7* 1.8 1.8 -2.0* 1.9; 1.9 1-131 -0.6* 1.9; 1.9 -3.2* 1.5; 1.6 -2.7* 1.5; 1.5 Cs-134 -1.2* 1.9; 1.9 0.1*2.1 ;2.1 -0.2+ 1.6; 1.6 Cs-137 -0.3* 2.0 ;2.0 -0.3* 1.9; 1.9 -1.4* 1.8; 1.8 Ba-140 -13.4*6.4 ;6.7 11.0*6.6 ;6.8 -17.8+ 6.1 ;6.7 La-140 -0.7, 2.0; 2.0 -0.3 L1.7; 1.7 -2.1 +/- 2.2; 2.2 III-34

DRESDEN Table 7. Surface Water Collection: Quarterly composites of weekly collections Required LLD: H-3 = 200 pCi'L Units: pCi/L 2004 Sample Description and Concentration Collection Period Lab Code Tritium D-51 Dresden Lock & Dam Ist Quarter CDSW- 1262 192* 85 ;88 2nd Quarter CDSW - 3539 67+/- 84 ;84 3rd Quarter CDSW- 5600' 1,035* 122;186 4th Quarter CDSW- 7613 778* 111 ;153 D-52 (C) DesPlaines River 1st Quarter CDSW- 1263 63+ 79;79 2nd Quarter CDSW- 3540 14+/- 81 ;81 3rd Quarter CDSW- 5601 53* 86;86 4th Quarter CDSW- 7614 13* 81 ;81 D-54 (C) Kankakee River 1st Quarter CDSW- 1260 90* 84 ;85 2nd Quarter CDSW- 3541 45* 83 ;83 3rd Quarter CDSW- 5612,3 83* 62 ;63 4th Quarter CDSW- 7611 176* 90 ;94

'Tritium repeated with a result of 808+/-116 pCi/L.

III -35

DRESDEN Table 8. Well Water Collection: . Quarterly Required LLDs: H-3 = 200, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Nb-95 = 15, I-131 = 15 Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi1L Units: pCi/L Sample Description and Concentration D-23 Thorsen Well Date Collected 01-09-04 04-09-04 07-09-04 10-08-04 Lab Code CDWW-169 CDWXV-1570 CDWW-3579 CDWW-5886 H-3 8994 115; 168 940+ 113;171 849+/- 114;163 684* 107;142 Mn-54 -1.1 *2.4 ;2.4 -0.1 *3.0 3.0 -2.3 *2.2; 2.2 1.4 +1.9; 1.9 Fe-59 0.3 *5.1; 5.1 1.0 5.5; 5.5 -1.2 *3.6; 3.6 1.0*4.0 ;4.0 Co-58 -0.5 +3.0 ;2.8 -2.2 3.3 3.6 0.3 *1.7 ;2.1 -3.5 *2.5; 2.3 Co-60 -2.7 *2.8 ;3.0 4.3 *3.5 3.3 0.1 42.1; 1.7 -0.6 + 2.3 2.5 Zn-65 -2.2

• 7.4; 7.4 0.1 *6.0 ;6.0 -2.0

• 3.4 3.4 -3.2 *5.3; 5.3 Zr-95 -2.1

• 6.8 6.8 -0.5 + 6.7; 6.7 -1.3 +/-3.8; 3.8 -5.3 +4.7 4.8 Nb-95 -2.7 +/-3.1; 3.1 -8.2 *4.7; 4.8 -0.3 +/- 1.8; 1.8 -1.4 +/-2.4; 2.4 I-131 -1.9 +/- 2.8; 2.8 -1.8 *2.6;2.6 -0.7 4:2.1;2.1 0.9 + 2.8; 2.8 Cs-134 1.2 *3.6; 3.6 -1.7 *2.9; 2.9 -2.9 *2.3 ;2.3 3.0*2.3 ;2.4 Cs-137 -0.4 *3.7; 3.7 4.5 +3.9 ;3.9 -0.8 *2.0; 2.0 -0.5 *2.4; 2.4 Ba-140 4.7 4 10.6; 10.6 9.0 +/- 12.5 ; 12.6 -13.5 *6.6;6.9 -8.8 *8.0; 8.1 La-140 -1.3

• 3.5; 3.6 -1.1 *4.5 ;4.5 -0.6

• 2.0 2.0 -2.8 + 2.6 2.6 D-35 Dresden Lock & Dam-Date Collected 01-09-04 04-09-04 07-09-04 10-08-04 Lab Code CDWW- 170 CDWW-1571 CDWW-3580 CDWW-5887 H-3 30+/- 82 ;82 61* 79; 80 35+/- 83 ;83 77* 83 ;84 Mn-54 0.1 + 1.8 ; 1.8 -1.0 +2.0 2.0 -0.8 *1.2; 1.2 -0.9 *2.1 ;2.1 Fe-59 4.8 *3.4 ; 3.5 -2.9 *4.1 ;4.1 -0.5 42.5 ; 2.5 -4.0 *3.4; 3.4 Co-58 -2.7 *2.0 ; 1.9 -0.9 +1.6; 1.8 1.2 *1.1; 1.4 1.8 *1.7 ;2.0 Co-60 1.4 *1.9 ;2.0 0.2 41.8 1.6 0.7*1.4 ; 1.2 1.8*1.9 ; 1.7 Zn-65 4.4 *4.0;4.0 -4.1 +5.1 ;S.1 0.4 42.6 ; 2.6 -0.8 *4.0; 4.0 Zr-95 -6.1 *4.3 ;4.4 -0.7 +4.4 4.4 -0.2 42.8 ; 2.8 1.8 *5.1 ;S.1 Nb-95 0.6 +1.7; 1.7 -3.3 *2.2; 2.2 1.0 + 1.4 ; 1.4 0.8 *2.2; 2.2 I-131 0.7 +2.2;2.2 -1.1 *2.4;2.4 -0.0

• 1.4; 1.4 3.7 *2.2;2.3 Cs-134 0.4+/-2.1 ;2.1 -1.7 *2.1 ;2.1 1.7 *1.5 ; 1.5 0.5 *2.0; 2.0 Cs-137 1.3 *2.3 ;2.3 1.6 *2.3 ; 2.3 -0.4*1.5; 1.5 -0.6 *2.0; 2.0 Ba-140 -8.8 *7.2 ; 7.3 7.7 47.6; 7.6 0.4 *4.9 ; 4.9 6.6 *8.3 ; 8.4 La-140 -0.5 + 2.2; 2.2 -2.5 *2.8 ;2.9 -1.5 *1.4 ;1.4 2.7*2.1 ;2.2 III-36

DRESDEN 5.0 MILCH ANIMALS, NEAREST LIVESTOCK AND NEAREST RESIDENCES CENSUS I-37

DRESDEN MILCH ANIMALS CENSUS, 2004 Cows being milked Halpin's Dairy Farn 16.0 miles, Sector J 55 10% or less for pasture 25% ground grain 65% green chop, hay or silage D-25 V. Biros Dairy Farm 11.4 miles, Sector L 94 25% pasture 25% ground grain 50% green chop Census conducted by A.D. Lewis on August 31, 2004 III-38

DRESDEN NEAREST LIVESTOCK CENSUS, 2004 Nearest livestock of the Dresden Station within a 6.2 mile radius.

Sector Direction Distance Livestock No.

A N 1.4 miles 96 cows - cattle B NNE 6.0 miles 16 cattle C NE 2.5 miles 9 cows - cattle D ENE 4.7 miles 65 cows - cattle E E None None F ESE None None G SE None None H SSE None None J S None None K SSW None None L SW None None M WSW None None N W 0.5 miles 1I catttle p WNW 0.5 miles I I cattle Q NW 0.5 miles I I cattle R NNW 1.0 miles 96 cows - cattle/8 goats Census conducted by A.D. Lewis on August 31, 2004 E-39

DRESDEN NEAREST RESIDENCE CENSUS, 2004 Nearest resident of the Dresden Station within a 6.2 mile radius.

Sector Direction Distance A N 1.5 miles B NNE 0.8 miles C NE 0.8 miles D ENE 0.7 miles E E 1.1 miles F ESE 1.0 miles G SE 0.6 miles H SSE 0.5 miles J S 0.5 miles K SSW 3.3 miles L SW 3.6 miles M WSW 5.8 miles N W 3.5 miles p WNNW 3.7 miles Q NW 2.6 miles R NNW 0.8 miles Census conducted by A.D. Lewis on August 31,2004 III40

DRESDEN 6.0 TLD DATA*

• TLD Data provided by Exelon Generation Company.

III-41

Exelon Nuclear Environmental Site Report for Dresden Gamma Radiation Measured in mR by TLDs Site Description Quarter I Quarter 2 Quarter 3 Quarter 4 2004 2004 2004 2004 I. INDICATOR LOCATIONS

a. Air Samplers D-01-1 ONSITE STATION 1 25.0 25.0 23.0 28.0 D-01-2 ONSITE STATION 1 25.0 24.0 21.0 27.0 D-02-1 ONSITE STATION 2 22.0 23.0 21.0 25.0 D-02-2 ONSITE STATION 2 25.0 23.0 20.0 24.0 D-03-1 ONSITE STATION 3 23.0 20.0 19.0 25.0 D-03-2 ONSITE STATION 3 21.0 20.0 20.0 25.0 D-04-1 COLLINS ROAD 28.0 23.0 25.0 27.0 D-04-2 COLLINS ROAD 28.0 24.0 21.0 28.0 D-07-1 CLAY PRODUCTS 26.0 21.0 20.0 28.0 D-07-2 CLAY PRODUCTS 26.0 23.0 20.0 25.0 D-08-1 PRAIRIE PARK 25.0 22.0 22.0 28.0 D-08-2 PRAIRIE PARK 24.0 24.0 25.0 29.0 D-10-1 GOOSE LAKE VILLAGE 27.0 22.0 21.0 27.0 D-10-2 GOOSE LAKE VILLAGE 25.0 23.0 24.0 27.0 D-13-1 MINOOKA 25.0 21.0 19.0 25.0 D-13-2 MINOOKA 24.0 20.0 19.0 24.0 D-14-1 CHANNAHON 23.0 20.0 20.0 25.0 D-14-2 CHANNAHON 25.0 24.0 26.0 26.0 D45-1 MCKINLEY WOODS ROAD 29.0 22.0 25.0 30.0 D.45-2 MCKINLEY WOODS ROAD 31.0 23.0 26.0 29.0 D-53-1 GRUNDY COUNTY LINE ROAD 21.0 18.0 18.0 23.0 D-53-2 GRUNDY COUNTY LINE ROAD 20.0 20.0 17.0 24.0 Air Sampler Mean i S. D. 24.9 +/-2.7 22.0 +/-1.8 21.5 +/-2.7 26.3 +/-1.9 Annual Air Sampler Mean +/- S.D. 23.7 +/-2.6

b. Inner Ring (100 Series)

D-101-1 25.0 25.0 25.0 29.0 D-101-2 25.0 23.0 21.0 26.0 D-102-1 29.0 27.0 24.0 30.0 D-102-2 29.0 25.0 26.0 30.0 D-103-1 25.0 21.0 23.0 26.0 D-103-2 28.0 25.0 22.0 29.0 D-104-1 30.0 25.0 24.0 29.0 D-104-2 28.0 24.0 21.0 32.0 D-105-1 26.0 23.0 25.0 27.0 D-105-2 27.0 24.0 25.0 29.0 D-106-1 25.0 22.0 21.0 29.0 D-106-2 21.0 19.0 22.0 24.0 D-107-1 23.0 21.0 18.0 24.0 D-107-2 24.0 20.0 18.0 24.0 D-108-1 27.0 24.0 22.0 28.0 D-108-2 25.0 20.0 20.0 26.0 III-42

Exelon Nuclear Environmental Site Report for Dresden Gamma Radiation Measured In mR by TLDs Site Description Quarter 1 Quarter 2 Quarter 3 Quarter 4 2004 2004 2004 2004

b. Inner Ring (100 Series)

D-109-1 28.0 25.0 21.0 27.0 D-109-2 24.0 25.0 26.0 28.0 D-110-3 30.0 26.0 25.0 31.0 D-110-4 31.0 27.0 24.0 31.0 D-111-1 26.0 24.0 25.0 28.0 D-111-2 28.0 24.0 24.0 28.0 D-112A-1 26.0 23.0 19.0 27.0 D-112A-2 25.0 23.0 21.0 26.0 D-113-1 25.0 22.0 19.0 25.0 D-113-2 23.0 23.0 20.0 27.0 D-1 14-1 24.0 22.0 22.0 26.0 D-1 14-2 23.0 20.0 21.0 25.0 D-1 15-1 27.0 24.0 22.0 26.0 D-1 15-2 27.0 25.0 21.0 27.0 D-1 16-1 29.0 26.0 23.0 29.0 D-116-2 28.0 26.0 22.0 29.0 Inner Ring Mean +/- S.D. 26.3 +/-2.4 23.5 +/-2.1 22.3 +/-2.3 27.6 +/-2.1 Annual Inner Ring Mean +/- S.D. 24.9 +/-3.1

c. Outer Ring (200 Series)

D-201-1 32.0 28.0 25.0 31.0 D-201-2 32.0 28.0 24.0 33.0 D-202-1 27.0 23.0 27.0 27.0 D-202-2 30.0 24.0 22.0 29.0 D-203-1 21.0 22.0 19.0 25.0 D-203-2 26.0 20.0 20.0 27.0 D-204-1 28.0 21.0 20.0 27.0 D-204-2 26.0 23.0 20.0 26.0 D-205-1 27.0 22.0 22.0 29.0 D-205-2 28.0 24.0 22.0 28.0 D-206-1 26.0 24.0 24.0 27.0 D-206-2 28.0 21.0 24.0 28.0 D-207-1 26.0 22.0 21.0 25.0 D-207-2 23.0 22.0 22.0 26.0 D-208-1 23.0 19.0 22.0 D-208-2 22.0 21.0 19.0 26.0 D-209-1 23.0 18.0 21.0 24.0 D-209-2 21.0 21.0 20.0 23.0 D-210-1 25.0 23.0 24.0 26.0 D-210-2 25.0 25.0 21.0 27.0 D-21 1-1 28.0 24.0 26.0 28.0 D-211-2 26.0 25.0 27.0 29.0 III-43

Exelon Nuclear Enviro nmental Site Report for Dresden Gamma IRadiation Measured in mR byTLDs Site Description Quarter I Quarter 2 Quarter 3 Quarter 4 2004 2004 2004 2004 Outer Ring (200 Series)

D-212-3 23.0 20.0 23.0 25.0 D-212-4 25.0 20.0 22.0 25.0 D-213-1 23.0 19.0 19.0 25.0 D-213-2 23.0 20.0 19.0 24.0 D-214-1 31.0 28.0 24.0 31.0 D-214-2 30.0 25.0 24.0 31.0 D-215-1 29.0 26.0 27.0 32.0 D-215-2 30.0 25.0 30.0 29.0 D-216-1 25.0 23.0 22.0 28.0 D-216-2 30.0 25.0 23.0 29.0 Outer Ring Mean +/- S.D. 26.3 t3.2 22.8 +/-2.7 22.7 +/-2.7 27.4 +/-2.5 Annual Outer Ring Mean +/- S.D. 24.8 +/-3.5 INDICATOR LOCATION MEAN +/- S.D. 25.9 +/-2.8 22.9 +/-2.3 22.2 +/-2.6 27.2 +/-2.2 Annual INDICATOR MEAN +/- S.D. 24.5 +/-3.2 II. CONTROL LOCATIONS D-12-1 LISBON 25.0 23.0 20.0 27.0 D-12-2 LISBON 21.0 20.0 18.0 25.0 CONTROL LOCATION MEAN +/- S.D. 23.0 +/-2.8 21.5 +/-2.1 19.0 +/-1.4 26.0 +/-1.4 Annual CONTROL LOCATION MEAN +/- S.D. 22.4 +/-3.1 III-44

DRESDEN 7.0 GRAPHS OF DATA TRENDS I11-45

Air Particulates - Gross Beta D-01 Onsite Station 1 10.0 8.0 6.0 a.

N 9

Wi 0 4.0 2.0 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 1. Continuous collection with weekly exchange of particulate filter.

D-02 Onsite Station 2 10.0 8.0 No samples; E 6.0 C.,

power out.

N 9

,/e oi 0~ 4.0 2.0 0.0 1 01 00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 2. Continuous collection with weekly exchange of particulate filter.

III46

Air Particulates - Gross Beta D-03 Onsite Station 3 10.0 8.0 M

6.0 w

N

.9 04 4.0 2.0 0.0 -

01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 3. Continuous collection with weekly exchange of particulate filter.

D-04 Collins Road 10.0 8.0 E

M 6.0 N

0.

9CL II C0 v.

4.0 2.0 0.0 1 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 4. Continuous collection with weekly exchange of particulate filter.

III47

Air Particulates - Gross Beta D-07 Clay Products 10.0 8.0 6.0 C.

m C) a.

(.4 9

III 0> 4.0 2.0 0.0 -

01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 5. Continuous collection with weekly exchange of particulate filter.

D-12 (C) Lisbon 10.0 8.0 6.0 C.,

CNI 9

wU 0~ 4.0 2.0 0.0 I-01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 6. Continuous collection with weekly exchange of particulate filter.

III48

Air Particulates - Gross Beta D-45 McKinley Woods Road 10.0 8.0 6.0 a.

of N

9 ws 0 4.0 2.0 0.0 -

01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 7. Continuous collection with weekly exchange of particulate filter.

D-53 Grundy County Road 10.0 8.0 6.0 9

uJ CD 4.0 2.0 0.0 1-01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 8. Continuous collection with weekly exchange of particulate filter.

III-49

Surface Water-Gross Beta D-51 Dresden Lock & Dam

!9 a-01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 9. Monthly composite of weekly collections.

D-52 (C) DesPlaines River U

a.

01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 10. Monthly composite of weekly collection.

IH-50

Surface Water-Gross Beta D-54 (C) Kankakee River 14.0 12.0 10.0 8.0 C.)

0.

6.0 4.0 2.0 0.0 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 10. Monthly composite of weekly collection.

Location shared with Braldwood Station (BD-1 0).

m1-51

Surface Water-Tritium D-51 Dresden Lock & Dam 2000 1800 1600 1400 1200 C.) 1000 0.

800 600 400 200 0- I I I Ii 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 11. Quarterly composite of weekly collection.

D-52 (C) Des Plaines River 6 00 500 4-400 +

300o -

C.)

a.

200 +

100+

0+

-1Iju1 I I 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 12. Quarterly composIte of weekly collectIon.

HII-52

Surface Water-Tritium D-54 (C) Kankakee River 600 500 400 300 c

200 100 0

-100 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 12-30-04 Figure 12. Quarterly composite of weekly collection.

Location shared with Braldwood Station (BD-10).

In-53

Well Water-Tritium III-54

DRESDEN APPENDIX IV IINTERLABORATORY COMPARISON PROGRAM RESULTS IV-1

- Environmental, hc.

Mdw est Laboratory an Aegheny Technlogibs Co.

700LvidweIrRoad *tNohbe,0L ea 22 (847)5840700 fa (847)584-4517 APPENDIX IV INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Environmental Inc., Midwest Laboratory participates in intercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported in Appendix A. TLD Intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A is updated four times a year; the complete Appendix is included in March, June, September and December monthly progress reports only.

January through December, 2004 IV-2

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

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

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

The results in Table IV-2 list results for thermoluminescent dosimeters (TLDs), via International Intercomparison of Environmental Dosimeters, when available, and internal laboratory testing.

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

Table IV-4 lists results of the analyses on in-house 'blank' samples for the past twelve months. Data for previous years available upon request.

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

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

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

Attachment A lists acceptance criteria for 'spiked" samples.

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

IV-3

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

> 100 pCi/liter or kg 5% of known value Strontium-89b 5 to 50 pCi/liter or kg 5.0 pCi/liter

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

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

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

> 100 pCi/liter 5% of known value Tritium *4,000 pCi/liter l1a = (pCi/liter) =

169.85 x (known) 00933

> 4,000 pCi/liter 10% of known value Radium-226,-228 20.1 pCi/liter 15% of known value Plutonium >0.1 pCi/liter, gram, or sample 10% of known value Iodine-131, *55 pCi/liter 6.0 pCi/liter Iodine-i 2 9 b > 55 pCi/liter 10% of known value Uranium-238, *35 pCi/liter 6.0 pCi/liter Nickel-63b > 35 pCi/liter 15% of known value Technetium-99b Iron-55b 50 to 100 pCi/liter 10 pCi/liter

> 100 pCi/liter 10% of known value Othersb 20% of known value 8 From EPA publication, Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

IV-4

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Resultb Result' Limits STW-1005 02/17104 Sr-89 36.5 i 6.5 44.9 +/- 4.5 36.2 - 53.6 STW-1005 02/17/04 Sr-90 13.4 i0.8 11.6 +/- 1.2 2.9 - 20.3 STW-1006 02/17/04 Ba-133 60.9 i 2.8 63.2 +/-6.3 52.3 - 74.1 STW-1006 02/17/04 Co-60 95.2 +/- 1.5 96.4 +/-9.6 87.7 - 105.0 STW-1006 02/17/04 Cs-1 34 71.2 +/-5.4 75.8 +/- 7.6 67.1 - 84.5 STW-1006 02/17104 Cs-I 37 157.0 i 6.5 155.0 i 15.5 142.0 - 168.0 STW-1006 02/17/04 Zn-65 103.0 i 1.1 102.0 i 10.2 84.4 - 120.0 STW-1007 02/17/04 Gr. Alpha 15.6 i 1.2 16.6 i 1.7 7.9 - 25.3 STW-1007 02/17/04 Gr. Beta 46.3 +/-4.4 41.5 +/-4.2 32.8 - 50.2 STW-1008 02/17/04 Ra-226 8.7 +/-0.2 9.3 +/- 0.0 6.9 - 11.7 STW-1008 02/17/04 Ra-228 16.6 +/-0.4 18.2 +/- 1.8 10.3 - 26.1 STW-1008 02/17/04 Uranium 34.2 i 0.8 33.0 +/- 3.3 27.8 - 38.2 S1W-1015 05/18/04 Sr-89 39.7 +/- 3.3 45.9 +/- 5.0 37.2 - 54.6 STW-1015 05/18/04 Sr-90 12.4 + 0.9 11.6 +/-5.0 2.9 - 20.3 STW-1016 05/18/04 Ba-1 33 96.9 +/- 2.4 101.0 +/- 10.1 83.5 - 118.0 STW-1016 05/18/04 Co-60 39.9 0.5 41.6 +/- 5.0 32.9 - 50.3 STW-1016 05/18/04 Cs-134 48.8 +/-0.8 50.5 +/- 5.0 41.8 - 59.2 STW-1016 05/18/04 Cs-137 82.6 +/- 2.3 82.5 +/- 5.0 73.8 - 91.2 STW-1016 05/18/04 Zn-65 77.5 +/- 1.5 75.2 +/- 7.5 62.2 - 88.2 STW-1017 05/18/04 Gr. Alpha 32.4 +/- 2.1 38.8 +/- 9.7 22.0 - 55.6 STW-1017 05/18/04 Gr. Beta 63.4 +/-3.5 59.6 +/- 10.0 42.3 - 76.9 STW-1018 05/18/04 1-131 25.2 +/- 0.4 25.1 +/-3.0 19.9 - 30.3 STW-1019 05/18/04 Ra-226 16.0 i 1.1 17.3 +/-2.6 12.8 - 21.8 STW-1019 05/18/04 Ra-228 12.6 +/-0.9 10.3 +/-2.6 5.8 - 14.8 STW-1019 05/18/04 Uranium 13.0 0O.0 12.7 +/- 3.0 7.5 - 17.9 STW-1020 05/18/04 H-3 32043 i 166 30900 +/- 3090 25600 - 36200 STW-1028 08/17/04 Sr-89 16.1 +/-1.9 20.0 +/- 2.0 11.3 - 28.7 STW-1028 08/17/04 Sr-90 13.4 +/- 0.1 13.6 +/- 1.4 4.9 -22.3 STW-1 029 08/17/04 Ba-133 30.2 +/- 3.9 32.1 +/- 3.2 23.4 - 40.8 STW-1 029 08/17/04 Co-60 24.9 +/- 1.9 24.0 +/- 2.4 15.3 - 32.7 STW-1 029 08/17/04 Cs-134 21.4 +/-3.4 21.6 +/- 2.2 12.9 - 30.3 STW-1029 08/17/04 Cs-137 205.6 +/- 4.3 193.0 +/- 19.3 176.0 - 210.0 STW-1029 08/17/04 Zn-65 145.5 +/-3.0 143.0 +/- 14.3 118.0 - 168.0 STW-1030 08/17/04 Gr. Alpha 47.7 +/-9.1 57.0 +/- 5.7 32.3 - 81.7 STW-1030 08/17/04 Gr. Beta 28.1 i2.5 20.0 +/- 2.0 11.3 - 28.7 STW-1030 08/17/04 Gr. Beta 28.1 +/- 2.5 20.0 +/- 2.0 11.3 - 28.7 STW-1031 08/17/04 Ra-226 6.9 +/- 0.5 6.3 +/- 0.6 4.6 - 7.9 STW-1031 08/17/04 Ra-228 13.1 +/-1.4 14.7 +/- 1.5 8.3 - 21.1 STW-1031 08/17/04 Uranium 6.0 +/- 0.1 6.2 +/- 0.6 1.0 - 11.4 IV1-I

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Resultb Result' Limits STW-1037 11/15/04 Sr-89 42.2 +/- 3.5 45.7 +/- 5.0 37.0 - 51.5 STW-1037 11/15/04 Sr-90 37.3 +/- 1.3 36.6 +/- 5.0 27.9 - 45.3 STW-1038 11/15/04 Ba-133 75.5 +/- 0.8 78.4 +/- 7.8 64.8 - 92.0 STW-1038 11/15/04 Co-60 12.2 +/- 0.7 11.7 +/-5.0 3.0 - 20.4 STW-1038 11/15/04 Cs-1 34 43.6 +/- 0.5 42.9 +/- 5.0 34.2 - 51.6 STW-1038 11/15/04 Cs-1 37 59.5 +/- 2.9 60.1 +/- 5.0 51.4 - 68.8 STW-1038 11/15/04 Zn-65 50.7 +/- 3.2 50.9 +/- 5.1 42.1 - 59.7 STW-1039 11/15/04 Gr. Alpha 23.9 +/- 2.2 31.7 +/- 7.9 18.0 - 45.4 STW-1039 11/15/04 Gr. Beta 35.8 +/- 1.3 36.3 +/- 5.0 27.6 - 45.0 STW-1040 11/15/04 1-131 22.4 +/- 1.9 22.0 +/- 5.0 16.9 - 27.3 STW-1041 11/15/04 Ra-226 9.8 +/- 0.4 9.2 +/- 1.4 6.8 - 11.6 STW-1041 11/15/04 Ra-228 8.6 +/- 0.3 7.1 +/-1.8 7.0 - 10.2 STW-1041 11/15/04 Uranium 11.1 +/-0.3 11.4 +/-3.0 6.2 - 16.6 STW-1042 11/15/04 H-3 21218.0 +/- 285.0 20700.0 +/- 2070.0 17100.0 - 24300.0

• Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing In drinking water conducted by Environmental Resources Associates (ERA).

b Unless otherwise Indicated, the laboratory result is given as the mean +/-l:

standard deviation for three determinations.

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

IV1 -2

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

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

2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,120 4.69 4.74 +/- 0.54 3.28 - 6.10 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,150 3.00 3.02 +/- 0.20 2.10 - 3.90 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,180 2.08 1.89 +/- 0.45 1.46 - 2.70 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1, 180 2.08 2.11 +/- 0.22 1.46 - 2.70 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1, 30 75.00 84.40 +/- 4.87 52.50 - 97.50 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1, 60 18.75 19.11 +/- 1.86 13.13 - 24.38 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1, 60 18.75 22.82 +/- 5.41 13.13 - 24.38 2003-1 CaS04: Dy Cards 8/8/2003 Reader 1, 90 8.33 9.05 +/- 1.17 5.83 - 10.83 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1, 90 8.33 7.60 +/- 1.08 5.83 - 10.83 Environmental. Inc.

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

2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1, 30 cm 55.23 61.07 +/- 4.38 38.66 - 71.80 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1, 30 cm 55.23 62.82 +/- 1.75 38.66 - 71.80 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1, 60 cm 13.81 14.10 +/- 0.56 9.67 - 17.95 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1, 60 cm 13.81 14.03 +/- 0.48 9.67 - 17.95 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1, 90 cm 6.14 5.97 +/- 0.21 4.30 - 7.98 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1, 90 cm 6.14 6.26 +/- 0.14 4.30 - 7.98 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1,120 cm 3.45 4.40 +/- 0.63 2.42 - 4.49 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1,150 cm 2.21 2.34 +/- 0.12 1.55 - 2.87 2004-1 CaSO4: Dy Cards 7/12/2004 Reader 1,180 cm 1.53 1.65 +/- 0.02 1.07 - 1.99 IV2-1

TABLE IV-3. In-House "Spike" Samples Concentration (pC iL)a Lab Code Sample Date Analysis Laboratory results Known Control Type 2s n=1 b Activity Limitsc SPVE-707 Vegetation 2/2012004 1-131(G) 5.68 t 0.15 4.93 2.96 - 6.90 SPCH-711 Charcoal 2/20/2004 1-131(G) 6.35 +/- 0.11 6.94 0.00 - 16.94 SPW-721 water 2/20/2004 Ni-63 161.00 + 13.20 169.00 101.40 - 236.60 SPAP-733 Air Filter 2/25/2004 Gr. Beta 1.39 +/- 0.02 1.48 0.00 - 11.48 SPW-735 water 2/25/2004 Cs-134 41.59 +/- 7.02 39.10 29.10 - 49.10 SPW-735 water 2/25/2004 Cs-1 37 64.11 +/- 7.39 64.56 54.56 - 74.56 SPW-735 water 2/25/2004 1-131 36.55 +/- 0.48 40.08 28.08 - 52.08 SPW-735 water 2/2512004 1-131 41.97 +/- 8.93 40.08 28.08 - 52.08 SPMI-737 Milk 2/25/2004 Cs-134 37.40 +/- 5.40 39.10 29.10 - 49.10 SPMI-737 Milk 2/25/2004 Cs-137 69.13 +/- 9.58 64.56 54.56 - 74.56 SPMI-737 Milk 2/25/2004 1-131 45.03 +/- 0.53 40.08 28.08 - 52.08 SPMI-737 Milk 2/25/2004 1-131 44.43 +/- 9.22 40.08 28.08 - 52.08 SPW-1 109 water 3/18/2004 Fe-55 39.98 +/- 1.72 39.98 23.99 - 55.97 SPW-1496 water 417/2004 H-3 80006.60 +/- 776.00 83896.00 67116.80 - 100675.20 SPMI-1683 Milk 4/16/2004 Sr-90 42.80 +/- 1.81 43.43 34.74 - 52.12 SPW-1 683 water 4/16/2004 1-131 54.47 +/- 0.73 66.60 53.28 - 79.92 SPW-1683 water 4/16/2004 1-131 (G) 65.82 +/- 8.86 66.60 56.60 - 76.60 SPMI-1685 Milk 4/16/2004 Cs-134 33.60 +/- 4.24 37.29 27.29 - 47.29 SPMI-1685 Milk 4/16/2004 Cs-137 61.77 +/- 7.59 64.36 54.36 - 74.36 SPMI-1685 Milk 4/16/2004 1-131 65.85 +/- 0.79 66.60 53.28 - 79.92 SPMI-1685 Milk 4/16/2004 1-131(G) 75.56 +/- 11.86 66.60 56.60 - 76.60 SPMI-1685 Milk 4/16/2004 Sr-90 42.56 +/- 1.66 43.43 34.74 - 52.12 SPW-1686 water 4/16/2004 Cs-134 39.31 +/- 4.35 37.29 27.29 - 47.29 SPW-1 686 water 4/16/2004 Cs-137 67.73 +/- 7.92 64.36 54.36 - 74.36 SPVE-1 862 Vegetation 4/2612004 1-131(G) 1.32 +/- 0.03 1.12 0.67 - 1.57 SPCH-1886 Charcoal 4/2612004 1-131 (G) 2.90 +/- 0.07 2.80 1.68 - 3.92 SPAP-1 888 Air Filter 4/27/2004 Gr. Beta 1.35 +/- 0.02 1.48 0.00 - 11.48 SPF-1917 Fish 4/29/2004 Cs-134 1.44 +/- 0.04 1.47 0.88 - 2.06 SPF-1917 Fish 4/29/2004 Cs-137 1.33 +/- 0.06 1.29 0.77 - 1.81 SPW-3151 water 6/24/2004 Fe-55 33.85 +/- 1.61 37.32 22.39 - 52.25 SPW-4232 water 8/4/2004 H-3 80225.00 +/- 785.00 82380.00 65904.00 - 98856.00 SPAP-4234 Air Filter 8/4/2004 Gr. Beta 1.63 +/- 0.02 1.46 0.00 - 11.46 SPW-5712 water 10/6/2004 Cs-1 34 61.04 +/- 2.51 63.61 53.61 - 73.61 SPW-5712 water 10/6/2004 Cs-137 62.01 +/- 2.76 63.66 53.66 - 73.66 SPW-5712 water 10/6/2004 Sr-90 48.40 +/- 2.00 42.94 34.35 - 51.53 SPMI-5714 Milk 10/6/2004 Sr-90 41.61 +/- 1.57 42.94 34.35 - 51.53 IV3-1

TABLE IV-3. In-House wSpike" Samples Concentration (pCiIL)

Lab Code Sample Date Analysis Laboratory results Known Control Type 2s, n=1b Activity Limits' SPMI-7418 Milk 1212212004 Cs-1 34 59.09 +/- 2.59 59.25 49.25 -69.25 SPMI-7418 Milk 12122/2004 Cs-1 37 65.45 +/- 5.61 63.35 53.35 -73.35 SPW-7420 water 12122/2004 Cs-134 58.42 +/- 1.99 59.25 49.25 - 69.25 SPW-7420 water 12122/2004 Cs-1 37 64.26 +/- 4.18 63.35 53.35 -73.35 SPW-7420 water 1212212004 Sr-89 105.26 +/- 4.21 103.47 82.78 - 124.16 SPW-7420 water 12/2212004 Sr-90 48.24 +/- 1.70 42.72 34.18 - 51.26 SPAP-7437 Air Filter 12/22/2004 Gr. Beta 1.65 +/-0.02 1.45 0.00 -11.45 SPF-7524 Fish 12/29/2004 Cs-134 1.11 +/-0.03 1.27 0.76-1.78 SPF-7524 Fish 12129/2004 Cs-137 1.21 +/- 0.05 1.19 0.71 -1.67 SPW-7526 water 12/29/2004 H-3 78615.70 +/- 773.70 80543.00 64434.40 - 96651.60 SPW-7532 water 12129/2004 Fe-55 30894.00 +/- 1484.00 32752.00 26201.60 - 39302.40 SPW-7540 water 12129/2004 Tc-99 30.28 +/- 1.11 32.98 20.98 - 44.98 a Liquid sample results are reported in pCULiter, air filters (pCUm3). charcoal (pCi/m 3), and solid samples (pCi/g).

b Results are based on single determinations.

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

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

IV3-2

TABLE IV-4. In-House t Blank' Samples Concentration (pCVL)r Lab Code Sample Date Analysis Laboratory results (4.66a) Acceptance Type LLD Activityb Criteria (4.66 a)

SPCH-712 Charcoal 212012004 1-131 (G) 2.24 9.6 SPW-722 Water 2/20/2004 Ni-63 2.64 -0.78 +/- 1.58 20 SPAP-734 Air Filter 2/25/2004 Gr. Beta 0.96 -1.02 +/- 0.42 3.2 SPW-736 Water 2/25/2004 Cs-1 34 2.47 10 SPW-736 Water 2/25/2004 Cs-1 37 1.91 10 SPW-736 Water 2/25/2004 1-131 0.15 -0.031 +/- 0.10 0.5 SPW-736 Water 2/25/2004 1-131 (G) 3.24 20 SPMI-738 Milk 2125/2004 Cs-1 34 2.54 10 SPMI-738 Milk 2/25/2004 Cs-1 37 5.34 10 SPMI-738 Milk 2/25/2004 1-131 0.16 -0.071 +/- 0.10 0.5 SPMI-738 Milk 2/25/2004 1-131 (G) 5.36 20 SPW-1110 Water 3/18/2004 Fe-55 772.70 168.4 +/- 480.90 1000 SPW-1497 Water 4/7/2004 H-3 152.30 81.4 +/- 79.40 200 SPW-1684 Water 4/16/2004 Cs-134 2.43 10 SPW-1684 Water 4/16/2004 Cs-137 2.53 10 SPW-1684 Water 4/16/2004 1-131 0.50 0.21 +/- 0.26 0.5 SPW-1684 Water 4/16/2004 1-131 (G) 4.49 20 SPW-1684 Water 4/16/2004 Sr-89 0.64 0.19 +/- 0.52 5 SPW-1684 Water 4/16/2004 Sr-90 0.64 0.13 +/- 0.31 1 SPMI-1686 Milk 4/16/2004 Cs-134 5.00 10 SPMI-1686 Milk 4/16/2004 Cs-137 4.16 10 SPMI-1686 Milk 4/16/2004 1-131 0.45 0.13 +/- 0.24 0.5 SPMI-1686 Milk 4/16/2004 1-131 (G) 6.53 20 SPMI-1686 Milk 4/16/2004 Sr-89 0.71 0.11 +/- 0.70 5 SPMI-1686 Milk 4/16/2004 Sr-90 0.71 0.66 +/- 0.40 1 SPVE-1863 Vegetation 4/26/2004 1-131 (G) 3.55 20 SPCH-1 887 Charcoal 4/26/2004 1-131 (G) 7.04 9.6 SPAP-1889 Air Filter 4/27/2004 Gr. Beta 0.74 -0.96 +/- 0.35 3.2 SPF-1918 Fish 4/29/2004 Cs-134 7.13 100 SPF-1918 Fish 4/29/2004 Cs-137 6.59 100 SPW-3152 Water 6/24/2004 Fe-55 790.30 -70.0 +/- 474.50 1000 SPW-4233 Water 8/4/2004 H-3 154.23 102.67 +/- 81.38 200 SPAP-4235 Air Filter 8/4/2004 Gr. Beta 0.96 -0.99 +/- 0.38 3.2 SPW-5711 Water 10/6/2004 Co-60 4.26 10 SPW-5711 Water 10/6/2004 Cs-134 6.02 10 SPW-5711 Water 10/6/2004 Cs-137 5.28 10 SPW-5711 Water 10/6/2004 Sr-90 0.61 -0.13 +/- 0.27 1 IV4-1

TABLE IV-4. In-House "Blank" Samples Concentration (pCVL)a Lab Code Sample Date Analysis Laboratory results (4.66a) Acceptance Type LLD Activityb Criteria (4.66 o)

SPMI-5713 Milk 10/6/2004 Cs-1 34 4.60 10 SPMI-5713 Milk 10/6/2004 Cs-1 37 5.81 10 SPMI-5713 Milk 10/6/2004 1-131 (G) 6.07 20 SPMI-5713 Milk 10/6/2004 Sr-90 0.68 1.4 +/- 0.45 1 SPMI-741 9 Milk 12/22/2004 Cs-1 34 8.66 10 SPMI-7419 Milk 12/22/2004 Cs-137 5.61 10 SPMI-7419 Milk 12/22/2004 Sr-90 0.82 1.67 +/- 0.48 SPW-7421 Water 12122/2004 Sr-89 1.21 0.58 +/- 0.94 5 SPW-7421 Water 12/22/2004 Sr-90 0.82 0.26 +/- 0.41 SPAP-7438 Air Filter 12/22/2004 Gr. Beta 0.93 -0.78 +/- 0.40 3.2 SPF-7525 Fish 12/29/2004 Cs-134 8.27 100 SPF-7525 Fish 12/29/2004 Cs-1 37 10.60 100 SPW-7526 Water 12/29/2004 H-3 164.80 -47.0 +/- 84.60 200 SPW-7533 Water 12/29/2004 Fe-55 753.00 118.6 +/- 465.80 1000 SPW-7535 Water 12/29/2004 Ni-63 13.10 4.3 +/-8.10 20 SPW-7540 Water 12/29/2004 Tc-99 1.19 -0.036 +/- 0.72 10

' Liquid sample resuits are reported In pCi/Liter, air filters( pCI/filter), charcoal (pCI/charcoal canister), and solid samples (pCi/kg).

b Activity reported Isa net activity result. For gamma spectroscopic analysis, activity detected below the LLD value Is not reportec c 1-131(G); iodine-131 as analyzed by gamma spectroscopy.

d Low levels of Sr-90 are still detected In the environment. A concentration of (1-5 pCi/L) Inmilk is not unusual.

IV4-2

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCGiL)a Averaged Lab Code Date Analysis First Result Second Result Result E-30, 31 1/5/2004 Gr. Beta 1.27 i 0.06 1.26 +/- 0.05 1.27 +/- 0.04 E-30, 31 1/5/2004 K-40 1.33 +/- 0.21 1.11 +/- 0.20 1.22 +/- 0.15 WW-58, 59 1/5/2004 Gr. Beta 4.20 +/- 1.33 4.46 +/- 1.34 4.33 +/- 0.94 WW-58, 59 1/5/2004 K-40 2.30 +/- 0.23 2.70 +/- 0.27 2.50 +/- 0.18 TD-7889, 7890 1/512004 H-3 16582.00 +/- 366.00 16060.00 +/- 360.00 16321.00 +/- 256.69 MI-79, 80 1/7/2004 K-40 1451.50 +/- 125.90 1383.60 +/- 115.50 1417.55 +/- 85.43 MI-79, 80 1/7/2004 Sr-90 0.90 +/- 0.31 1.05 +/- 0.34 0.97 +/- 0.23 S-100, 101 1/13/2004 Cs-1 37 8.50 +/- 0.23 8.52 +/- 0.21 8.51 +/- 0.16 SW-225, 226 1/13/2004 Gr. Alpha 2.62 +/- 1.26 2.05 +/- 1.16 2.34 +/- 0.86 SW-225, 226 1/13/2004 Gr. Beta 6.37 +/- 1.15 4.92 +/- 1.06 5.65 +/- 0.78 U-304, 305 1/16/2004 Gr. Beta 5.18 +/- 1.38 7.04 +/- 1.53 6.11 +/- 1.03 SW-345, 346 1/2712004 1-131 1.32 +/- 0.24 1.56 +/- 0.21 1.44 +/- 0.16 SWT-423,424 1/27/2004 Gr. Beta 2.34 +/- 0.54 2.38 +/- 0.52 2.36 +/- 0.38 SWU-469,470 1/27/2004 Gr. Beta 2.99 +/- 0.57 3.09 +/- 0.67 3.04 +/- 0.44 TD-545, 546 2/2/2004 H-3 658.40 +/- 104.60 712.30 +/- 106.60 685.35 +/- 74.67 MI-524, 525 2/4/2004 K-40 1240.00 +/- 147.90 1265.60 +/- 166.30 1252.80 +/- 111.28 MI-567, 568 2/9/2004 K-40 1322.90 +/- 105.50 1340.80 +/- 112.80 1331.85 +/- 77.22 MI-567, 568 2/9/2004 Sr-90 0.98 +/- 0.48 0.79 +/- 0.42 0.89 +/- 0.32 MI-588, 589 2/11/2004 K-40 1185.70 +/- 157.80 1337.70 +/- 160.00 1261.70 +/- 112.36 SWU-778, 779 2/24/2004 Gr. Beta 2.55 +/- 0.54 2.53 +/- 0.56 2.54 +/- 0.39 LW-1014, 1015 3/1/2004 Gr. Beta 1.78 +/- 0.56 2.06 +/- 0.57 .1.92 +/- 0.40 SW-966, 967 3/9/2004 Gr. Alpha 2.70 +/- 1.43 2.96 +/- 1.63 2.83 +/- 1.08 SW-966, 967 3/9/2004 Gr. Beta 8.06 +/- 1.20 7.33 +/- 1.21 7.69 +/- 0.85 SW-966, 967 3/9/2004 H-3 182.04 +/- 86.24 198.87 +/- 86.97 190.45 +/- 61.24 SW-1249,1250 3/31/2004 Gr. Beta 4.71 +/- 1.11 5.25 +/- 1.10 4.98 +/- 0.78 LW-1464,1465 3/31/2004 Gr. Beta 2.13 +/- 0.52 2.39 +/- 0.53 2.26 +/- 0.37 AP-1633, 1634 3/31/2004 Be-7 0.05 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.01 AP-1714,1715 3/31/2004 Be-7 0.04 +/- 0.01 0.05 +/- 0.01 0.05 +/- 0.01 TD-1489, 1490 4/1/2004 H-3 681.00 +/- 110.00 709.00 +/- 111.00 695.00 +/- 78.14 SWT-1299,1300 4/2/2004 Gr. Beta 3.13 +/- 0.57 3.64 +/- 0.60 3.39 +/- 0.41 DW-1420,1421 4/2/2004 Gr. Beta 1.29 +/- 0.83 1.62 +/- 0.87 1.46 +/- 0.60 DW-1510,1511 4/2/2004 1-131 0.68 +/- 0.27 0.62 +/- 0.36 0.65 +/- 0.23 BS-1537, 1538 4/6/2004 Gr. Beta 6.81 +/- 1.20 6.76 +/- 1.23 6.78 +/- 0.86 WW-1654,1655 4/13/2004 Gr. Beta 6.83 +/- 1.17 5.60 +/- 1.12 6.21 +/- 0.81 LW-1680,1681 4/13/2004 Gr. Beta 2.45 +/- 0.64 2.93 +/- 0.62 2.69 +/- 0.45 MI-1735, 1736 4/14/2004 K-40 1384.90 +/- 182.00 1408.20 +/- 187.90 1396.55 +/- 130.80 MI-1802, 1803 4/19/2004 K-40 1327.50 +/- 109.10 1206.30 +/- 113.30 1266.90 +/- 78.64 MI-1802,1803 4/19/2004 Sr-90 0.72 +/- 0.40 0.77 +/- 0.41 0.74 +/- 0.28 U-1781, 1782 4/21/2004 Gr. Alpha 0.20 +/- 1.90 -0.30 +/- 2.40 -0.05 +/- 1.53 SWT-1933,1934 4/27/2004 Gr. Beta 2.60 +/- 0.55 2.33 +/- 0.52 2.46 +/- 0.38 F-1912,1913 4/29/2004 H-3 8875.00 +/- 250.00 9119.00 +/- 253.00 8997.00 +/- 177.84 F-1912,1913 4/29/2004 K-40 3406.90 +/- 533.30 3550.60 +/- 581.40 3478.75 +/- 394.47 LW-1960, 1961 4/2912004 Gr. Beta 2.23 +/- 0.55 2.38 +/- 0.57 2.31 +/- 0.40 IV5-1

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCiIL)8 Averaged Lab Code Date Analysis First Result Second Result Result BS-2083, 2084 5/3/2004 Be-7 1.10 i 0.44 1.17 +/- 0.20 1.14 +/- 0.24 BS-2083, 2084 5/3/2004 Gr. Beta 28.44 i 2.27 25.56 +/- 2.04 27.00 +/- 1.53 BS-2083, 2084 5/3/2004 K-40 6.75 +/- 0.89 6.35 +/- 0.53 6.55 +/- 0.52 BS-2083, 2084 5/3/2004 Sr-90 0.12 i 0.04 0.17 +/- 0.05 0.15 +/- 0.03 MI-2225, 2226 5/11/2004 K-40 1396.30 +/- 124.20 1227.60 +/- 125.40 1311.95 +/- 88.25 SW-2267, 2268 5/11/2004 Gr. Alpha 2.95 +/- 1.44 2.41 +/- 1.37 2.68 +/- 0.99 SW-2267, 2268 5/11/2004 Gr. Beta 6.80 +/- 1.18 7.25 +/- 1.21 7.03 +/- 0.84 MI-2437, 2438 5/17/2004 K-40 1549.00 +/- 123.40 1566.20 i 118.60 1557.60 +/- 85.58 MI-2437, 2438 5/17/2004 Sr-90 1.83 +/- 0.44 1.99 +/- 0.42 1.91 +/- 0.30 F-2413, 2414 5/20/2004 K-40 2844.60 +/- 550.40 2963.00 +/- 532.30 2903.80 +/- 382.85 SO-2578,2579 5/26/2004 Cs-1 37 0.16 +/- 0.02 0.21 +/- 0.05 0.18 +/- 0.03 SO-2578, 2579 5/26/2004 Gr. Beta 28.07 +/- 3.24 28.73 +/- 3.00 28.40 +/- 2.21 SO-2578, 2579 5/26/2004 K-40 19.41 +/-0.78 18.93 i 1.04 19.17 +/- 0.65 SS-2603, 2604 5/26/2004 Cs-1 37 0.06 +/- 0.02 0.06 +/- 0.02 0.06 +/- 0.02 SS-2603, 2604 5/2612004 K-40 10.18 +/- 0.63 10.43 +/- 0.56 10.30 +/- 0.42 G-2677, 2678 6/1/2004 Be-7 1.31 +/-0.25 1.25 +/- 0.23 1.28 +/- 0.17 G-2677, 2678 6/1/2004 Gr. Beta 5.73 +/- 0.12 5.86 +/- 0.12 5.79 +/- 0.09 G-2677, 2678 6/1/2004 K-40 5.56 +/- 0.49 5.78 +/- 0.50 5.67 +/- 0.35 G-2677, 2678 6/1/2004 Sr-90 0.01 +/- 0.00 0.01 +/- 0.01 0.01 +/- 0.00 DW-2700, 2701 6/11/2004 Gr. Beta 1.82 +/- 1.01 2.66 +/- 0.94 2.24 +/- 0.69 TD-2876, 2877 6/1/2004 H-3 13116.00 +/- 324.00 12746.00 +/- 320.00 12931.00 +/- 227.69 MI-2724, 2725 6/3/2004 K-40 1509.00 +/- 116.10 1489.20 +/- 126.10 1499.10 +/- 85.70 MI-2724, 2725 6/3/2004 Sr-90 1.64 +/- 0.46 1.81 +/-0.44 1.73 +/- 0.32 BS-2921, 2922 6/3/2004 K-40 8.32 +/- 0.63 8.55 +/- 0.62 8.44 +/- 0.44 TD-2876, 2877 6/4/2004 H-3 13116.00 +/- 324.00 12746.00 +/- 320.00 12931.00 +/- 227.69 BS-2897, 2898 6/4/2004 Gr. Beta 9.31 +/- 1.43 8.82 +/- 1.39 9.06 +/- 1.00 SWU-3092, 3093 6/9/2004 Gr. Beta 1.95 +/- 0.71 2.55 +/- 0.76 2.25 +/- 0.52 CF-2986, 2987 6/14/2004 Be-7 0.69 +/- 0.12 0.84 +/- 0.19 0.76 +/- 0.11 CF-2986, 2987 6/14/2004 K-40 4.50 +/- 0.32 3.82 +/- 0.48 4.16 +/- 0.29 MI-2977, 2978 6/15/2004 K-40 1486.70 +/- 120.10 1291.60 +/- 167.40 1389.15 +/- 103.01 MI-3007, 3008 6/15/2004 K-40 1333.90 +/- 121.30 1355.80 +/- 176.50 1344.85 +/- 107.08 W-3031, 3032 6/18/2004 H-3 642.00 +/- 108.00 562.00 +/- 105.00 602.00 +/- 75.31 W-3071, 3072 6/21/2004 H-3 273.00 +/- 94.00 203.00 +/- 92.00 238.00 +/- 65.76 SW-3145, 3 14 6 b 6/22/2004 1-131 0.97 +/- 0.20 1.43 +/- 0.20 1.20 +/- 0.14 DW-3278, 3279 6/25/2004 1-131 0.67 +/- 0.26 0.48 +/- 0.25 0.57 +/- 0.18 AP-3922, 3923 6/28/2004 Be-7 0.08 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 AP-3637, 3638 6/29/2004 Be-7 0.08 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 LW-3589, 3590 6/30/2004 Gr. Alpha 0.28 +/- 0.55 1.29 +/- 0.89 0.79 +/- 0.53 LW-3589, 3590 6/30/2004 Gr. Beta 1.91 +/- 0.64 2.86 +/- 0.70 2.39+/- 0.48 LW-3589. 3590 6/30/2004 H-3 8369.20 +/- 262.57 8226.01 +/- 260.51 8297.61 i184.94 AP-3943, 3944 6/30/2004 Be-7 0.08 +/- 0.02 0.09 +/- 0.02 0.08 i 0.01 IV5-2

TABLE IV-5. In-House 'Duplicate" Samples Concentration (pCi/L)8 Averaged Lab Code Date Analysis First Result Second Result Result E-3327, 3328 7/112004 Gr. Beta 1.21 i 0.06 1.35 +/- 0.07 1.28 +/- 0.05 E-3327, 3328 7/1/2004 K-40 1.08 +/- 0.20 1.30 +/- 0.22 1.19 +/- 0.15 G-3377, 3378 7/1/2004 Be-7 1.10 +/- 0.13 1.16 +/- 0.16 1.13 +/- 0.10 G-3377, 3378 7/1/2004 Gr. Beta 6.42 +/- 0.19 6.28 +/- 0.19 6.35 +/- 0.13 G-3377, 3378 7/1/2004 K-40 5.26 +/- 0.31 5.36 +/- 0.28 5.31 +/-0.21 VE-3681, 3682 7/13/2004 K-40 2.65 +/- 0.45 2.90 +/- 0.61 2.77 +/- 0.38 CF-3707, 3708 7/13/2004 Be-7 1.97 +/- 0.44 2.11 +/- 0.25 2.04 +/- 0.25 CF-3707, 3708 7/13/2004 K-40 5.39 +/- 0.44 4.98 +/- 0.42 5.19 +/- 0.30 SW-3773, 3774 7/14/2004 H-3 10697.20 +/- 295.70 10689.60 +/- 295.70 10693.40 +/- 209.09 LW-3849, 3850 7/14/2004 Gr. Beta 2.21 +/- 0.54 2.32 +/- 0.65 2.27 +/- 0.42 SWU-4307,4308 7/14/2004 Gr. Beta 3.49 i 0.57 3.68 +/- 0.61 3.59 +/- 0.42 MI-4051, 4052 7/28/2004 K-40 1190.70 +/- 204.60 1357.00 +/- 145.90 1273.85 +/- 125.65 VE-4079,4080 7/28/2004 K-40 4.90 +/- 0.51 4.62 +/- 0.61 4.76 +/- 0.40 MI-4163, 4164 7/28/2004 K-40 1422.40 +/- 186.50 1330.80 +/- 181.00 1376.60 +/- 129.95 MI-4163, 4164 7/28/2004 Sr-90 0.87 +/- 0.32 1.00 +/- 0.35 0.93 i 0.24 WW-4387,4388 8/3/2004 Gr. Beta 5.94 +/- 0.76 6.28 +/- 0.76 6.11 +/- 0.54 MI-4286, 4287 8/4/2004 K-40 1435.20 +/- 76.90 1404.70 +/- 80.54 1419.95 +/- 55.68 MI-4286, 4287 8/4/2004 Sr-90 1.88 +/- 0.40 1.31 +/- 0.35 1.59 +/- 0.26 VE-4370, 4371 8/4/2004 H-3 0.54 +/- 0.08 0.62 +/- 0.08 0.58 +/- 0.06 VE-4408, 4409 8/5/2004 K-40 2.03 +/- 0.39 2.12 +/- 0.32 2.08 +/- 0.25 VE-4467, 4468 8/9/2004 K-40 6.28 +/- 0.76 6.11 +/-0.75 6.20 +/- 0.53 MI-4492, 4493 8/10/2004 K-40 1478.70 +/- 116.70 1472.50 +/- 105.10 1475.60 +/- 78.53 MI-4492,4493 8/10/2004 Sr-90 1.35 +/- 0.40 1.08 +/- 0.42 1.22 +/- 0.29 MI-4518,4519 8/11/2004 K-40 1197.30 +/- 158.50 1350.20 +/- 202.30 1273.75 +/- 128.50 VE-4748, 4749 8/25/2004 Gr. Beta 2.31 +/- 0.05 2.32 +/- 0.05 2.31 +/- 0.04 VE-4748, 4749 8/25/2004 K-40 1.70 +/- 0.25 1.94 +/- 0.31 1.82 +/- 0.20 LW-4769,4770 8/26/2004 Gr. Beta 2.00 +/- 0.58 2.07 +/- 0.58 2.04 +/- 0.41 ME-4905,4906 9/1/2004 Gr. Beta 3.06 +/- 0.10 2.93 +/- 0.10 3.00 +/- 0.07 ME-4905,4906 9/1/2004 K-40 2.33 +/- 0.67 3.26 +/- 0.58 2.80 +/- 0.44 MI-4926,4927 9/1/2004 K-40 1316.20 +/- 115.40 1285.80 +/- 117.30 1301.00 +/- 82.27 MI-4926, 4927 9/1/2004 Sr-90 3.62 +/- 0.52 2.07 +/- 0.43 2.84 +/- 0.34 VE-5027, 5028 9/2/2004 Gr. Beta 2.43 +/- 0.07 2.39 +/- 0.06 2.41 +/- 0.05 VE-5027, 5028 9/2/2004 K-40 1.77 +/- 0.20 1.94 +/- 0.31 1.86 +/- 0.18 SW-5003, 5004 9/7/2004 1-131 1.69 +/- 0.23 1.50 +/- 0.25 1.59 +/- 0.17 MI-5050, 5051 9/7/2004 K-40 1559.40 +/- 131.80 1560.70 +/- 121.20 1560.05 +/- 89.53 MI-5050, 5051 9/7/2004 Sr-90 2.26 +/- 0.52 1.61 +/- 0.47 1.94 +/- 0.35 WW-5072, 5073 9/7/2004 Gr. Beta 4.31 +/-0.70 4.11 +/-0.69 4.21 +/- 0.49 SW-5216, 5217 9/14/2004 Gr. Alpha 4.34 +/- 1.71 4.30 +/- 1.77 4.32 +/- 1.23 SW-5216, 5217 9/14/2004 Gr. Beta 7.97 +/- 1.24 8.58 i 1.29 8.27 +/- 0.89 IV5-3

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCIL)a Averaged Lab Code Date Analysis First Result Second Result Result G-5237, 5238 9/15/2004 Be-7 1.18 + 0.23 1.28 +/- 0.24 1.23 +/- 0.17 G-5237, 5238 9/15/2004 K-40 7.16 0.58 7.56 +/- 0.55 7.36 +/- 0.40 LW-5316, 5317 9/16/2004 Gr. Beta 2.76 +/- 0.58 2.64 +/- 0.54 2.70 +/- 0.40 SS-5450, 5451 9/24/2004 K-40 10.33 + 0.66 10.10 +/- 0.74 10.22 +/- 0.50 AP-6308, 6309 9/27/2004 Be-7 0.08 + 0.01 0.08 +/- 0.01 0.08 +/- 0.01 SWU-5495, 5496 9/28/2004 Gr. Beta 3.38 + 1.78 4.41 i 1.94 3.90 +/- 1.32 AP-6070, 6071 9/28/2004 Be-7 0.08 +/- 0.01 0.08 +/- 0.01 0.08 +/- 0.01 G-5516, 5517 9/29/2004 Be-7 1.81 +0.29 1.74 +/- 0.30 1.77 +/- 0.21 G-5516, 5517 9129/2004 K-40 7.35 + 0.70 7.43 +/- 0.62 7.39 +/- 0.47 AP-6258, 6259 9129/2004 Be-7 0.07 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 F-7211, 7212 9/29/2004 Cs-1 37 0.04 i 0.01 0.05 +/- 0.02 0.05 +/- 0.01 F-7211, 7212 9/29/2004 K-40 2.76 +/- 0.27 3.07 +/- 0.26 2.92 +/- 0.19 BS-5902, 5903 1011/2004 Co-60 0.25 +/- 0.05 0.26 +/- 0.03 0.25 +/- 0.03 BS-5902, 5903 10/1/2004 Co-60 2.53 +/- 0.11 2.52 +/- 0.06 2.52 +/- 0.06 E-5654, 5655 10/4/2004 Gr. Beta 1.40 i 0.06 1.32 +/- 0.06 1.36 +/- 0.04 E-5654, 5655 10/4/2004 K-40 1.32 + 0.26 1.22 +/- 0.24 1.27 +/- 0.18 MI-5676, 5677 10/4/2004 K-40 1311.00 +/- 122.00 1398.00 +/- 125.00 1354.50 +/- 87.33 SO-5756, 5757 10/4/2004 Gr. Alpha 7.12 +/- 3.09 6.69 +/- 2.92 6.91 +/- 2.13 SO-5756, 5757 10/4/2004 Gr. Beta 19.66 +/- 2.63 22.32 +/- 2.65 20.99 +/- 1.87 SO-5756, 5757 10/4/2004 K-40 16.45 +/- 0.86 17.52 +/- 0.78 16.99 +/- 0.58 VE-6483, 6484 10/6/2004 K-40 9.35 +/- 0.55 9.88 +/- 0.23 9.61 +/- 0.30 MI-5923, 5924 10/12/2004 K-40 1333.60 +/- 183.50 1552.40 +/- 179.20 1443.00 +/- 128.24 SS-6046, 6047 10/13/2004 Cs-1 37 0.02 +/- 0.01 0.02 +/- 0.01 0.02 +/- 0.01 SS-6046, 6047 10/13/2004 Gr. Beta 7.93 +/- 1.72 9.57 +/- 1.88 8.75 +/- 1.27 SS-6046, 6047 10/1312004 K-40 5.77 +/- 0.42 5.77 +/- 0.40 5.77 +/- 0.29 DW-6208, 6209 10115/2004 1-131 0.89 +/- 0.26 0.65 +/- 0.27 0.77 +/- 0.19 BS-6694, 6695 10/19/2004 K-40 11.84 +/- 0.67 12.75 +/- 0.79 12.29 +/- 0.52 VE-6354, 6355 10/25/2004 Gr. Beta 4.82 +/- 0.14 4.76 +/- 0.14 4.79 +/- 0.10 VE-6354, 6355 10/25/2004 K-40 4.71 +/- 0.54 4.82 +/- 0.61 4.77 +/- 0.41 DW-6462, 6463 10/27/2004 Gr. Beta 8.46 +/- 1.27 8.22 +/- 1.24 8.34 +/- 0.89 LW-6377, 6378 10/28/2004 Gr. Beta 2.18 +/- 0.54 2.33 +/- 0.53 2.25 +/- 0.38 SS-6504, 6505 10/29/2004 K-40 9.28 +/- 0.61 8.51 +/- 0.78 8.89 +/- 0.50 LW-6762, 6763 10/31/2004 Gr. Beta 1.85 +/- 0.66 1.69 +/- 0.64 1.77 +/- 0.46 BS-6576, 6577 11/1/2004 Gr. Beta 11.02 +/- 1.54 13.77 +/- 1.77 12.40 +/- 1.17 BS-6576, 6577 11/1/2004 K-40 9.43 +/- 0.71 8.84 +/- 0.68 9.14 +/- 0.49 SO-6715, 6716 1112/2004 Cs-137 0.29 +/- 0.04 0.33 +/- 0.06 0.31 +/- 0.04 SO-6715, 6716 11/2/2004 Gr. Alpha 10.94 +/- 3.95 14.72 +/- 4.16 12.83 +/- 2.87 SO-6715, 6716 11/2/2004 Gr. Beta 21.33 +/- 3.10 24.82 +/- 3.10 23.07 +/- 2.19 SO-6715, 6716 11/2/2004 K-40 10.42 +/- 0.71 12.16 +/- 1.06 11.29 +/- 0.64 VE-6673, 6674 1118/2004 Gr. Alpha 0.07 +/- 0.04 0.14 +/- 0.05 0.11 +/-0.03 VE-6673, 6674 11/8/2004 Gr. Beta 4.50 +/- 0.12 4.48 +/- 0.12 4.49 +/-0.09 VE-6673, 6674 11/8/2004 K-40 4.05 +/- 0.49 4.65 +/- 0.55 4.35 +/- 0.37 IV5-4

TABLE IV-5. In-House 'Duplicate' Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result SO-6820, 6821 11/10/2004 K-40 14.41 i1.03 15.01 +/- 1.09 14.71 +/- 0.75 S0-6820, 6821 11/10/2004 Sr-90 0.04 +/- 0.02 0.07 +/- 0.02 0.06 +/- 0.02 SWU-7160, 7161 11/30/2004 Gr. Beta 4.39 +/- 1.98 3.09 +/- 1.77 3.74 +/- 1.33 MI-7062, 7063 12/112004 K-40 1456.00 +/- 124.80 1640.50 +/- 131.40 1548.25 +/- 90.61 MI-7062, 7063 12/1/2004 Sr-90 1.13 +/- 0.41 0.98 +/- 0.43 1.06 +/- 0.30 S-7281,7282 12/5/2004 Cs-137 0.82 +/- 0.15 1.16 +/- 0.20 0.99 +/- 0.12 VE-7343, 7344 12/13/2004 Gr. Beta 5.25 +/- 0.14 5.08 +/- 0.14 5.16 +/- 0.10 VE-7343, 7344 12113/2004 K-40 4.23 +/- 0.71 4.33 +/- 0.69 4.28 +/- 0.49 MI-7317, 7318 12/14/2004 K-40 1702.80 +/- 129.70 1536.80 +/- 115.10 1619.80 +/- 86.70 WW-7375, 7376 12/1412004 Gr. Beta 14.13 +/- 1.03 15.22 +/- 1.06 14.68 +/- 0.74 SWU-7507,7508 12/1412004 Gr. Beta 4.48 +/- 0.66 5.31 +/- 0.69 4.89 +/- 0.48 DW-7563, 7564 12/27/2004 Gr. Beta 1.88 +/- 0.51 2.34 +/- 0.52 2.11 +/- 0.37 P-7698, 7699 12/27/2004 H-3 246.01 +/- 95.00 259.06 +/- 95.51 252.53 +/- 67.35 AP-7741, 7742 12/28/2004 Be-7 0.06 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.01 Note: Duplicate analyses are performed on every twentieth sample received in-house. Results are not listed for those analyses with activities that measure below the LLD.

8 Results are reported in units of pCi/L, except for air filters (pCUFilter), food products, vegetation, soil, sediment (pCi/g).

b 600 minute count time or longer, resulting in lower error.

IV5-5

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

Concentrationb Known Control Lab Code Type Date Analysis Laboratory result Activity Limitsc STSO-1 022 soil 05/01/04 Am-241 65.90 +/- 4.50 66.97 +/- 6.70 46.88 - 87.06 STSO-1022 soil 05/01/04 Co-57 388.90 i 4.00 399.60 +/- 40.00 279.72 - 519.48 STSO-1022 soil 05/01/04 Co-60 524.80 +/- 7.10 518.00 +/- 51.80 362.60 - 673.40 STSO-1 022 soil 05/01/04 Cs-134 403.40 +/- 4.60 414.40 +/- 41.40 290.08 - 538.72 STSO-1022 soil 05/01/04 Cs-137 829.10 +/- 7.60 836.20 +/- 83.62 585.34 - 1088.00 STSO-1022 soil 05/01/04 K-40 620.60 +/- 29.50 604.00 +/- 60.40 422.80 - 785.20 STSO-1022 soil 05/01/04 Ni-63 254.80 +/- 8.40 357.05 +/- 35.70 249.94 - 464.17 STSO-1022 d. e soil 05/01/04 Tc-99 59.00 +/- 6.00 117.66 +/- 11.78 82.36 - 152.96 STSO-1022 d.fI soil 05/01/04 U-233/4 24.70 +/- 3.60 37.00 +/- 3.70 25.90 - 48.40 STSO-1022 d. I soil 05/01/04 U-238 24.20 +/- 3.50 38.85 +/- 3.90 27.20 - 50.51 STSO-1022 soil 05/01/04 Zn-65 743.00 +/- 13.10 699.30 +/- 69.90 489.51 - 909.09 STAP-1 023 Air Filter 05/01/04 Gr. Alpha 0.06 +/- 0.02 0.40 +/- 0.04 0.00 - 0.80 STAP-1 023 Air Filter 05/01/04 Gr. Beta 1.37 +/- 0.08 1.20 +/- 0.12 0.60 - 1.80 STAP-1 024 Air Filter 05/01/04 Am-241 0.08 +/- 0.03 0.10 +/- 0.01 0.07 - 0.13 STAP-1024 Air Filter 05/01/04 Co-57 2.07 +/- 0.06 2.40 +/- 0.24 1.68 - 3.12 STAP-1 024 Air Filter 05/01/04 Co-60 2.11 +/- 0.08 2.30 +/- 0.23 1.61 - 2.99 STAP-1 024 g Air Filter 05/01/04 Cs-1 34 1.78 +/- 0.08 2.90 +/- 0.29 2.03 - 3.77 STAP-1024 Air Filter 05/01/04 Cs-1 37 1.76 +/- 0.08 2.00 +/- 0.20 1.40 - 2.60 STAP-1 024 Air Filter 05/01/04 Mn-54 2.84 +/- 0.11 3.00 +/- 0.30 2.10 - 3.90 STAP-1 024 Air Filter 05/01/04 Pu-238 0.12 +/- 0.01 0.13 +/- 0.01 0.09 - 0.17 STAP-1 024 Air Filter 05/01/04 Pu-239/40 0.08 +/- 0.01 0.09 +/- 0.01 0.06 - 0.12 STAP-1 024 Air Filter 05/01/04 Sr-90 0.66 +/- 0.19 0.80 +/- 0.08 0.56 - 1.04 STAP-1024 Air Filter 05/01/04 U-233/4 0.23 +/- 0.03 0.21 +/- 0.02 0.15 - 0.27 STAP-1 024 Air Filter 05/01/04 U-238 0.23 +/- 0.03 0.22 +/- 0.02 0.15 - 0.29 STAP-1 024 Air Filter 05/01/04 Zn-65 3.90 +/- 0.22 4.00 +/- 0.40 2.80 - 5.20 STW-1026 water 05/01/04 Am-241 0.56 +/- 0.07 0.60 +/- 0.06 0.42 - 0.78 STW-1026 water 05/01/04 Co-57 184.10 +/- 13.50 185.00 +/- 18.50 129.50 - 240.50 STW-1026 water 05/01/04 Co-60 164.40 +/- 11.70 163.00 +/- 16.30 114.10 - 211.90 STW-1026 water 05/01/04 Cs-134 201.10 +/- 14.00 208.00 +/- 20.80 145.60 - 270.40 STW-1026 water 05/01/04 Cs-137 245.50 +/- 15.80 250.00 +/- 25.00 175.00 - 325.00 STW-1026 water 05/01/04 Fe-55 37.60 +/- 25.30 33.00 +/- 3.30 23.10 - 42.90 STW-1026 water 05/01/04 H-3 76.50 +/- 5.40 83.00 +/- 8.30 58.10 - 107.90 STW-1026 water 05/01/04 Mn-54 272.10 +/- 17.50 267.00 +/- 26.70 186.90 - 347.10 STW-1026 water 05/01/04 Ni-63 94.40 +/- 3.20 100.00 +/- 10.00 70.00 - 130.00 STW-1026 water 05/01/04 Pu-238 1.11 +/-0.09 1.20 +/- 0.12 0.84 - 1.56 STW-1 026 water 05/01/04 Pu-239/40 0.01 +/- 0.01 0.00 +/- 0.00 0.00 - 0.10 STW-1 026 water 05/01/04 Sr-90 6.20 +/- 1.10 7.00 +/- 0.70 4.90 - 9.10 STW-1026 water 05101/04 Tc-99 10.70 +/- 1.00 10.00 +/- 1.00 7.00 - 13.00 IV6-1

TABLE IV-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)3 .

Concentrationb Known Control Lab Code Type Date Analysis Laboratory result Activity Limitsc STW-1026 water 05/01/04 U-233/4 0.14 +/- 0.02 0.12 +/- 0.01 0.08 - 0.16 STW-1026 water 05/01/04 U-238 0.94 +/- 0.05 0.90 +/- 0.09 0.63 - 1.17 STW-1026 water 05/01/04 Zn-65 219.60 +/- 27.90 208.00 +/- 20.80 145.60 -270.40 STW-1027 water 05/01/04 Gr. Alpha 1.20 +/- 0.10 1.20 +/- 0.12 0.00 - 2.40 STW-1027 water 05/01/04 Gr. Beta 4.30 +/- 0.10 4.10 +/- 0.41 2.05 - 6.15 a Results obtained by Environmental, Inc. Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho b All 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.

d The cause of the deviation seems to be incomplete dissolution of the sample.

' A spiked soil sample was prepared. Known activity; 32.98 pCi/g; laboratory result 33.47 pCi/g.

'The sample was reanalyzed with the same results. Investigation is in progress.

9 Based on the results of gamma emitting isotopes (Cs-1 37 and Co-60), the filter geometry appears to be biased by -10%. Addition of the summation peak at 1400 KeV results in a recalculation of 2.12 +/- 0.15 Bq/sample.

IV6-2

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

Concentration" EML Control Lab Code Type Date Analysis Laboratory results Resulte Limitsc STW-1009 water 03/01/04 Am-241 1.21 +/- 0.02 1.31 0.66 - 1.56 STW-1009 water 03/01/04 Co-60 152.30 +/- 0.30 163.20 0.87 - 1.17 STW-1009 water 03/01/04 Cs-137 50.40 +/- 0.90 51.95 0.90 - 1.25 STW-1009 water 03/01/04 H-3 263.50 +/- 10.00 186.60 0.69 - 1.91 STW-1009 water 03/01/04 Pu-238 1.03 +/- 0.04 1.10 0.68 - 1.33 STW-1 009 water 03101/04 Pu-239140 2.90 +/- 0.10 3.08 0.62 - 1.38 STW-1009 water 03/01/04 Sr-90 5.20 +/- 0.30 4.76 0.73 - 1.65 STW-1009 water 03/01/04 Uranium 4.35 +/- 0.21 4.62 0.40 - 1.45 STW-1010 water 03/01/04 Gr. Alpha 208.00 +/- 20.70 326.00 0.55 - 1.31 STW-1010 water 03101/04 Gr. Beta 1063.00 +/- 27.00 1170.00 0.75 - 1.65 STSO-1011 Soil 03/01/04 Am-241 14.10 +/- 4.30 13.00 0.52 - 2.41 STSO-1011 Soil 03/01/04 Cs-137 1292.00 +/- 13.00 1323.00 0.74 - 1.40 STSO-1011 Soil 03/01/04 K-40 563.00 +/- 83.00 539.00 0.70 - 1.59 STSO-1011 Soil 03/01/04 Pu-239140 20.70 +/- 1.10 22.82 0.62 - 1.99 STSO-1011 Soil 03/01/04 Sr-90 72.10 +/- 5.80 51.00 0.58 - 2.96 STSO-1011 Soil 03101/04 Uranium 139.10 +/- 10.20 180.22 0.27 - 1.48 STVE-1012 Vegetation 03/01/04 Am-241 4.50 +/- 0.20 4.93 0.58 - 2.86 STVE-1012 Vegetation 03/01/04 Co-60 14.10 +/- 0.40 14.47 0.64 - 1.49 STVE-1012 Vegetation 03/01/04 Cs-1 37 573.90 +/- 6.00 584.67 0.75 - 1.48 STVE-1012 Vegetation 03/01/04 K-40 709.00 +/- 19.30 720.00 0.45 - 1.51 STVE-1012 Vegetation 03/01/04 Pu-239/40 6.60 +/- 0.50 6.81 0.60 - 1.98 STVE-1012 Vegetation 03/01/04 Sr-90 766.50 +/- 51.30 734.00 0.50 - 1.37 STAP-1013 Air Filter 03/01/04 Am-241 0.11 +/- 0.01 0.10 0.62 - 1.93 STAP-1013 Air Filter 03/01/04 Co-60 30.90 +/- 1.08 35.40 0.74 - 1.25 STAP-1013 a Air Filter 03/01/04 Cs-1 34 12.30 +/- 1.30 18.20 0.70 - 1.21 STAP-1013 Air Filter 03101/04 Cs-137 24.90 +/- 0.60 26.40 0.72 - 1.32 STAP-1013 Air Filter 03/01/04 Pu-238 0.04 +/-0.01 0.04 0.61 - 1.55 STAP-1013 Air Filter 03/01/04 Pu-239/40 0.17 +/- 0.02 0.16 0.67 - 1.58 STAP-1013 Air Filter 03/01/04 Sr-90 1.80 +/- 0.20 1.76 0.62 - 2.26 STAP-1013 Air Filter 03/01/04 Uranium 0.17 +/- 0.01 0.17 0.79 - 2.88 STAP-1014 Air Filter 03/01104 Gr. Alpha 1.09 +/- 0.06 1.20 0.82 - 1.58 STAP-1014 Air Filter 03/01/04 Gr. Beta 2.68 +/- 0.05 2.85 0.75 - 1.94 a Results are reported In Bq/L with the following exceptions: Air Filters (Bq/Filter), Soil and Vegetation (Bq/kg).

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

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

d Probable effect of summation peaks and slight difference In filter geometry.

IV7-1

DRESDEN APPENDIX V ERRATA DATA V-1

DRESDEN During a review of the 2002 AREOR, it was discovered that Table 1,Section III did not contain data for locations D-01 and D-04. Duplicate pages of locations D-03 and D-12 were inadvertently placed in the table.

Pages containing D-01 and D-04 data for 2002 are attached.

V-2

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection: Airborne Particulates - Continuous; weekly exchange Iodine cartridges - Continuous; biweekly exchange Required LLD: Gross Beta = 0.01, I-131 = 0.07 pCi/m' Units: 104 pCi/n' D-01 Onsite Station I Date Volume Gross Date Volume Gross Collected (m') Beta I-131' Collected (m') Beta I-131' 01-04-02 278 2.9 A 0.4; 0.7 0.5 + 0.4 ;0.5 07-05-02 287 1.2 +/-0.3 0.3 -0.3+/-0.5 ;0.5 01-11-02 286 4.2 A 0.4; 0.9 - 07-12-02 282 2.0 0.4;0.5 01-18-02 285 2.4 A 0.3; 0.5 0.4 4 0.4 ;0.4 07-19-02 285 3.0 +/- 0.4; 0.7 0.2 0.4O;0.4 01-25-02 282 3.6 4 0.4; 0.8 - 07-26-02 290 2.0

• 0.3; 0.5 02-01-02 288 2.4 +/- 0.4; 0.6 -0.3 +/- 0.5 ;0.5 08-02-02 282 2.5 0.3 ;0.6 0.2+/-0.4;0.4 02-08-02 285 4:4 + 0.4; 0.9 - 08-09-02 298 2.0 + 0.4; 0.5 02-15-02 284 2.5 +/-0.4 ;0.6 0.6+0.4 ;0.4 08-16-02 285 2.9+/-0.3 ;0.6 0.0+/-0.4;0.4 02-22-02 286 1.8 +/- 0.3 0.5 - 08-23-02 273 1.9 +/-0.3 0.5 03-01-02 294 2.2 +/- 0.3 0.5 -0.4 + 0.4 ;0.4 08-30-02 284 2.6 +/-0.3 0.6 -0.6+0.4;0.4 03-08-02 283 2.7 +/- 0.4; 0.6 09-06-02 299 2.7 +/- 0.3; 0.6 03-15-02 284 2.3 +/- 0.4; 0.5 -0.0 0.3 ;0.3 09-13-02 288 3.6 0.4;0.8 0.60.4;0.4 03-22-02 284 2.0 + 0.3; 0.5 09-20-02 280 2.5 +/- 0.4; 0.6 03-29-02 292 2.5 4 0.4; 0.6 0.6 0.4 ;0.4 09-27-02 291 1.9 +/- 0.3; 0.5 0.5 0.3 ;0.4 1st Qtr. Mean+/-s.d. 2.8 +/-0.8 0.2+/- 0.4 3rd Qtr. Meanrs.d. 2.4 +/-0.6 0.1+/- 0.4 04-05-02 276 1.9 +/- 0.3; 0.5 10-04-02 284 3.6 +/-0.4;0.8 04-12-02 288 2.6 +/- 0.3; 0.6 0.1 0.5 ;0.5 10-11-02 281 2.8 +/-0.4 ;0.7 0.240.4 ;0.4 04-19-02 284 2.3 40.3 ;0.5 10-18-02 284 2.4 40.4 ;0.6 04-26-02 284 1.6 4 0.3; 0.4 -0.3 A 0.5 ;0.5 10-25-02 284 2.4 4 0.3 ;0.5 0.2+/- 0.4 ;0.4 05-03-02 283 1.7 + 0.3; 0.4 11-01-02 285 2.8 + 0.3; 0.6 05-10-02 288 1.8 +/- 0.3 ;0.4 0.4+/- 0.5;0.5 11-08-02 285 5.1 4 0.5 ;1.0 0.0+/- 0.3 ;0.3 05-17-02 284 1.740.3;0.5 11-15-02 285 3.1 +/-0.4;0.7 05-23-02 244 1.3 4 0.3 0.4 0.7+ 0.5 ;0.5 11-22-02 291 2.0 0.4; 0.5 -0.0 +/- 0.4 ;0.4 05-31-02 325 1.7 + 0.3; 0.4 11-29-02 283 2.1 0.3; 0.5 06-07-02 289 1.7 +/- 0.3; 0.4 0.1 0.4 ;0.4 12-06-02 288 2.2 4 0.3 0.5 -0.3 0.3 ;0.3 06-14-02 283 1.6 4 0.3;0.4 12-13-02 283 3.7 4 0.4; 0.8 06-21-02 284 2.4 i 0.4; 0.6 0.1 +/- 0.5 ;0.5 12-20-02 285 3.8 +/-0.4;0.8 -0.4 0.4 ;0.4 06-28-02 284 2.6 +/- 0.4; 0.6 12-27-02 291 1.7 4 0.4; 0.5 2nd Qtr. Meanrs.d. 1.9 +/-0.4 0.2+/- 0.3 4th Qtr. Meanss.d. 2.9 - 0.9 -0.1+/- 0.2 Volume based on a two week collection period.

1- 1

DRESDEN 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' Units: 10.2 pCi/r' D-04 Collins Road Date Volume Gross Date Volume Gross Collected (i') Beta I-131' Collected (i') Beta I-131' 01-04-02 278 3.4

• 0.4; 0.7 -0.0* 0.5 ;0.5 07-05-02 253' 2.4 4 0.3; 0.6 -0.24 0.3 ;0.3 01-11-02 286 4.1 0.4;0.8 - 07-12-02 283 1.7

• 0.3 0.5 01-18-02 285 2.8 0.3;0.6 0.6+0.4;0.4 07-19-02 253' 2.9 4 0.4 0.7 0.8 +0.5 ;0.5 01-25-02 282 3.8 *0.4; 0.8 - 07-26-02 252' 2.3 4 0.3; 0.5 02-01-02 288 2.1 a0.3; 0.5 0.3 +/- 0.4 ;0.4 08-02-02 282 2.5

• 0.3 ;0.6 1.0

• 0.5 ;0.5 02-08-02 275 4.2 + 0.4; 0.9 - 08-09-02 298 1.7 + 0.3; 0.5 02-15-02 284 2.6

• 0.4; 0.6 -0.4

• 0.4 ;0.4 08-16-02 208' 3.0

• 0.4; 0.7 0.7 +0.4 ;0.5 02-22-02 286 1.8 *0.3 0.5 - 08-23-02 273 0.7 + 0.3; 0.3 03-01-02 290 2.4

• 0.4; 0.6 0.2 +/- 0.5 ;0.5 08-30-02 285 0.5 + 0.2; 0.2 0.4

• 0.3 ;0.4 03-08-02 278 3.0

• 0.4; 0.7 09-06-02 285 3.2

• 0.4; 0.7 03-15-02 284 2.8

• 0.4; 0.6 0.1 + 0.4 ;0.4 09-13-02 288 3.6 4 0.4; 0.8 -0.0* 0.3 ;0.3 03-22-02 284 2.6

• 0.4; 0.6 09-20-02 280 2.9 + 0.4; 0.7' 03-29-02 283 2.9

• 0.4; 0.7 0.5 +/-0.5 ;0.5 09-27-02 291 2.4

• 0.3 ;0.5 0.2

• 0.3 ;0.3 Ist Qtr. Meanss.d. 3.0 *0.7 0.2* 0.3 3rd Qtr. Meanss.d. 2.3 *0.9 0.4* 0.4 04-05-02 278 2.1 + 0.4 ;0.5 10-04-02 285 3.4 *0.4 ;0.7 04-12-02 288 2.8 *0.3 ;0.6 0.2*0.5 ;0.5 10-11-02 281 2.4

• 0.4; 0.6 -0.1 0.4 ;0.4 04-19-02 284 2.3 40.3 ;0.5 10-18-02 289 1.9 *0.4 ;0.5 04-26-02 284 1.8 *0.3 ;0.5 -0.6*0.5 ;0.5 10-25-02 284 2.6

• 0.3 0.6 -0.1 0.4 ;0.4 05-03-02 283 1.8

• 0.3 0.5 11-01-02 285 2.8

• 0.3; 0.6 05-10-02 288 1.6 + 0.3; 0.4 -0.64 0.5 ;0.6 11-08-02 285 5.6 + 0.5; 1.1 -0.1 0.4 ;0.4 05-17-02 265' 1.9

• 0.4; 0.5 11-15-02 285 3.2 X 0.4; 0.7 05-23-02 244 1.4

• 0.3; 0.4 0.1 0.4 ;0.4 11-22-02 287 2.0

• 0.4; 0.5 -0.3

• 0.4 ;0.4 05-31-02 320 2.0

• 0.3 0.5 11-29-02 283 2.2

• 0.3; 0.5 06-07-02 289' 1.5

• 0.3 0.4 0.1 0.4 ;0.4 12-06-02 288 2.3

• 0.3; 0.5 0.1

• 0.3 ;0.3 06-14-02 281 1.7*0.3;0.4 12-13-02 283 4.2 0.4; 0.9 06-21-02 284 1.7

• 0.4; 0.5 -0.0* 0.3 ;0.3 12-20-02 280 4A

• 0.5; 0.9 0.0

• 0.3 ;0.3 06-28-02 214' 2.3

• 0.4; 0.6 12-27-02 291 2.2 0.4 ;0.5 2nd Qtr. Meanhs.d. 1.9 *-0.4 -0.1* 0.3 4th Qtr. Meanss.d. 3.0 *1.1 -0.1+ 0.2 Volume based on a two week collection period.

'Volume low; low meter reading of 156.5 hrs. possibly due to power outage.

' Used estimated meter reading of 107.3 hrs.; collector replaced defective timer.

'Volume low, possibly due to thermal coupling shutting off pump.

1-4