ML041330115

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Annual Radiological Environmental Operating Report
ML041330115
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 05/07/2004
From: Barnes G
Exelon Generation Co, Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML041330115 (176)


Text

Exelknm.

Exelon Generation Company, LLC www.exeloncorp.com Nuclear LaSalle County Station 2601 North 21' Road Marseilles, IL 61341-9757 May 7, 2004 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555 LaSalle County Station, Units 1 and 2 Facility Operating License Nos. NPF-1 1 and NPF-1 8 NRC Docket Nos. 50-373 and 50-374

Subject:

2003 Annual Radiological Environmental Operating Report Enclosed is the 2003 Annual Radiological Environmental Operating Report for Exelon Generation Company (EGC), LLC, LaSalle County Station, submitted in accordance with Technical Specification 5.6.2, "Annual Radiological Environmental Operating Report." This report contains the results of the Radiological Environmental and Meteorological Monitoring Programs.

Should you have any questions concerning this letter, please contact Mr. Glen Kaegi, Regulatory Assurance Manager, at (815) 415-2800.

Respectfully, George P. Barnes Site Vice President LaSalle County Station Attachment cc: Regional Administrator - NRC Region IlIl NRC Senior Resident Inspector - LaSalle County Station X1>

LASALLE COUNTY STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 2003 MAY 2004

TABLE OF CONTENTS Page INTRODUCTION...................................................................................................... 1 SU VLJAVE4R~Y .................................................................................... 2 1.0 EFFLUENTS 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 3.1 Gaseous Effluent Pathways ................................................................ 3 3.1.1 Noble Gases ................................................................. 3 3.1.1.1 GammaDoseRates ................................................................ 3 3.1.1.2 Beta Air and Skin Rates ............................................................ 4 3.1.2 Radioactive Iodine ............................................................... 4 3.1.2.1 Iodine Concentrations in Air ..................................................... 4 3.1.2.2 Dose to Thyroid . ............................................................... 4 3.1.3 Concentrations of Particulates in Air ...................................................... 5 3.2 Liquid Effluent Pathways ............................................................. 5 3.3 Assessment of Dose to Member of Public ........................................................ 5 4.0 SITE METEOROLOGY ................................................................. 6 5.0 ENVIRONMENTAL MONITORING........................................................................ 6 5.1 Gamma Radiation ............................................................... 6 5.2 Airborne 1-131 and Particulate Radioactivity ................................................... 6 5.3 Aquatic Radioactivity ............................................................... 7 5.4 Milk ................................................................ 7 5.5 Terrestrial Radioactivity ....................... ........................................ 7 5.6 Sample Collections ................................................................ 8 5.7 Program Modifications ................................................................ 8 6.0 ANALYTICAL PROCEDURES .............................. .................................. 8 7.0 MILCH ANIMALS AND NEAREST LIVESTOCK CENSUS ................................ 8 8.0 NEAREST RESIDENT CENSUS ................................................................ 8 9.0 INTERLABORATORY COMPARISON PROGRAM RESULTS ............ .............. 8 10.0 ERRATADATA ............................................................... 8 ii

TABLE OF CONTENTS (continued)

APPENDIX I - DATA TABLES AND FIGURES............................................................. I-I Station Releases Table 1.1-1 Gaseous Effluents ................................... 1-2 Table 1.2-1 Liquid Effluents ................................... 1-3 Table 2.0-1 Solid Waste Shipped Offsite for Burial or Disposal .............. I-4 Figure 3.1 Figure 3.1-4 Isodose and Concentration Contours .................................... 1-5 Table 3.1-1 Maximum Doses Resulting from Airborne Releases............................................................................... I-9 Table 3.2-1 Maximum Doses Resulting from Liquid Discharges........................................................................... 1-13 Table 3.3-1 10CFR20 Compliance Assessment ................................... 1-17 Table 3.4-1 Maximum Doses Resulting from Airborne Releases Based on Concurrent Meteorological Data.............................. I-21 I-18 Environmental Monitoring Figure 5.0-1 Inner Ring TLD Locations .............. ........................ I-23 Figure 5.0-2 Outer Ring TLD Locations .............. ........................ I-24 Figure 5.0-3 Fixed Air Sampling and TLD Sites ...................................... I-25 Figure 5.0-4 Ingestion and Waterborne Exposure Pathway Sample Locations ..................................... I-26 Table 5.0-1 Radiological Environmental Monitoring Locations............................................................................. I-27 Table 5.0-2 Radiological Environmental Monitoring Program, Sampling Locations and Sample Collection and Analyses.............................................................................. I-28 Table 5.0 Table 5.0-6 Radiological Environmental Monitoring Program Quarterly Sum S.1-34ary................................................................

APPENDIX II - METEOROLOGICAL DATA ............................................................. -1 APPENDIX III - 2003 REMP SAMPLE RESULTS .......................................................... E-l I

APPENDIX IV - INTERLABORATORY COMPARISON PROGRAM RESULTS ....... IV- 1 APPENDIX V - ERRATA DATA................................................................................ V-1 iii

INTRODUCTION LaSalle County Station, a two-unit BWR station is located near Marseilles, Illinois in LaSalle County, 3.5 miles south of the Illinois River. The output of Unit one is 1183 MWe; the output of Unit 2 is 1187 MWe. Unit No. 1 loaded fuel in March 1982. Unit No. 2 loaded fuel in late December 1983. The station has been designed to keep releases to the environment at levels below those specified in the regulations.

Liquid effluents from LaSalle County Station 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 routine grab samples of noble gases as well as continuously collected composite samples of iodine and particulate radioactivity sampled during the course of the year.

The results of effluent analyses are summarized on a monthly basis 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 effluent and meteorological data.

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

1

SUMMARY

Gaseous and liquid effluents for the period contributed to only a small fraction of the LaSalle County Station Technical Specification limits. Calculations of environmental concentrations based on effluent, Illinois River flow, and meteorological data for the period indicate that consumption by the public of radionuclides attributable to LaSalle County Station does not exceed regulatory limits. Radiation exposure from radionuclides released to the atmosphere.

represented the critical pathway for the period with a maximum individual total dose estimated to be 3.21E-01 mrem for the year, where a shielding and occupancy factor of 0.7 is assumed. The assessment of radiation doses is performed in accordance with the Offsite Dose Calculation Manual (ODCM), specifically, a comparison of preoperational studies with operational controls or with previous environmental surveillance reports and an assessment of the observed impacts of the plant operation on the environment. Control locations are basis for "preoperational data."

Yearly data comparisons are provided in Sections 5.1 and 5.2; five-year graphical trend data is provided in Appendix m, Section 7.0. The results of analysis confirm that the station is operating in compliance with 10CFR50 Appendix I, 10CFR20 and 40CFRI90.

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1.0 EFFLUENTS 1.1 Gaseous Effluents to the Atmosphere Measured concentrations of noble gases, radioiodine, and particulate radioactivity released to the atmosphere during the year, are listed in Table 1.1-1. A total of 2.40E+04 curies of fission and activation gases were released with a maximum quarterly average release rate of 9.26E+02 gCi/sec.

A total of 1.19E+00 curies of 1-131 were released during the year with a maximum quarterly average release rate of 4.21 E-02 gCi/sec.

A total of 7.67E-02 curies of beta-gamma emitters was released as airborne particulate matter with a maximum quarterly average release rate of 3.75E-03 iiCi/sec. A total of 8.34E-05 curies of alpha-emitting radionuclides was also released.

A total of 1.36E+02 curies of tritium was released with a maximum quarterly average release rate of 5.16E+00 gtCi/sec.

1.2 Liquids Released to Illinois River There were no liquid batch releases in 2003. Continuous release path activity was below applicable Lower Limits of Detection.

2.0 SOLID RADIOACTIVE WASTE Solid radioactive wastes were shipped by truck to the Envirocare Disposal Facility or to a waste processor. For further detail, refer to the LaSalle 2003 Radioactive Effluent Report.

The submittal date of this report was April 26, 2004.

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

3.1.1 Noble Gases 3.1.1.1 Gamma Dose Rates Unit 1 and Unit 2 gaseous releases at LaSalle County Station are reported as Unit I releases due to a single station vent stack (SVS) release point. Offsite Gamma air and whole body dose rates are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic composition of the noble gases, and average meteorological data for the period. Doses based on concurrent meteorological data are shown in Table 3.4-1. Isodose contours based on concurrent meteorological data for gamma dose for the year are shown in Figure 3.1-1. Based on measured effluents and meteorological data, the maximum total body dose to an individual would be 3.21 E-01 mrem 3

(Table 3.1-1) for the year, with an occupancy or shielding factor of 0.7 included. The maximum total body dose based on measured effluents and concurrent meteorological data would be 2.18E-01 mrem. (Table 3.4-1).

The maximum gamma air dose was 4.25E-01 mrad (Table 3.1-1) and 7.07E-01 mrad based on concurrent meteorological data (Table 3.4-1).

3.1.1.2 Beta Air and Skin Rates The range of beta particles in air is relatively small (on the order of a few meters or less); consequently, plumes of gaseous effluents may be considered "infinite" for the purpose of calculating the dose from beta radiation incident on the skin. However, the actual dose to sensitive skin tissues is difficult to calculate due to the effect of the beta particle energies, thickness of inert skin and clothing covering sensitive tissues.

For purposes of this report the skin is taken to have a thickness of 7.0 mg/cm and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year was 3.39E-01 mrem (Table 3.1-1) and 2.59E-01 mrem (Table 3.4-1) based on concurrent meteorological data.

The maximum offsite beta air dose for the year was 1.57E-02 mrad (Table 3.1-1) and 7.69E-02 mrad (Table 3.4-1) based on concurrent meteorological data. The air concentrations of radioactive noble gases at the offsite receptor locations are given in Figure 3.1-2.

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 plant, 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.

3.1.2.1 Iodine Concentrations in Air The calculated concentration contours for iodine in air are shown in Figure 3.1-3. Included in these calculations is an iodine cloud depletion factor which accounts for the phenomenon of elemental iodine deposition on the ground. The maximum offsite concentration is 3

estimated to be 2.58E-02 pCi/m for the year (Table 3.4-1).

3.1.2.2 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 I-13 1 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 due to 1-131 was 1.48E+00 mrem (child) for the year (Table 3.1-1).

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3.1.3 Concentrations of Particulates in Air Concentration contours of radioactive airborne particulates are shown in Figure 3

3.1-4. The maximum offsite average level is estimated to be 4.37E-01 pCi/m .

(Table 3.4-1) 3.2 Liquid Effluent Pathways The three principal pathways through the aquatic environment for potential doses to man from liquid waste are ingestion of potable water, eating aquatic foods, and exposure while on the shoreline. Not all of these pathways are applicable at a given time 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 gastro-intestinal tracts, thyroid, bone, skin; specific parameters for use in the equations are given in the Offsite Dose Calculation Manual. The maximum whole body dose was 0.00E+0O and organ dose was O.0OE+00 for the year (Table 3.2-1).

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

  • The Radiological Effluent Technical Standards limits on dose or dose commitment to an individual due to radioactive materials in liquid effluents from each reactor unit (1.5 mrem to the whole body or 5 mrem to any organ during any calendar quarter; 3 mrem to the whole body or 10 mrem to any organ during any calendar year).
  • The RETS limits on air dose in noble gases released in gaseous effluents to a member of the public from each reactor unit (5 mrad for gamma radiation or 10 mrad for beta radiation during any calendar quarter; 10 mrads 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 eight days in gaseous effluents released from each reactor unit (7.5 mrem to any organ during any calendar quarter; 15 mrem to any organ during any calendar year).
  • The 10CFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem).

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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 375' level and wind speed class by atmospheric stability class determined for the temperature difference between the 375' and 33' levels.

Data recovery for these measurements was 99.9% during 2003 (Table 3.4-1) 5.0 ENVIRONMENTAL MONITORING Table 5.0-1 provides an outline of the Radiological Environmental Monitoring Program (REMP) as required in the current Technical Standards. Tables 5.0-2 lists the program's sampling locations, collection frequencies and analyses for all samples collected. Tables 5.0-3 to 5.0-6 summarize data for the year. 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 CaF 2 thermoluminescent dosimeters (TLDs). Each location normally consists of 2 TLD sets. The quarterly average external radiation dose for the year was 24.2 mR at the indicator locations and 21.0 mR at the control locations. TLD results are listed in Table 6.0 of Appendix ff1 and locations are shown in Figures 5.0-1 and 5.0-2.

Quarterly external radiation dose at indicator air sampling locations averaged 23.2 mR and is similar to levels measured in 1986 (17.1 mR), 1987 (17.8 mR), 1988 (16.5 mR),

1989 (17.6 mR), 1990 (17.8 miR), 1991 (17.7 mR), 1992 (15.5 mR), 1993 (14.5 mR),

1994 (15.4 mR), 1995 (15.3 mR), 1996 (15.9 mR) and 1997 (16.1 mR), 1998 (17.0 mR), 1999 (17.0 mR), 2000 (17.9 mR), 2001 (20.1 mR) and 2002 (23.3 mR).

5.2 Airborne I-131 and Particulate Radioactivity Locations of the samplers are shown in Figure 5.0-3. Airborne I-131 remained below the LLD of 0.07 pCi/mr throughout the year.

Gross beta concentrations ranged from 0.013 to 0.049 pCi/m and averaged 0.026 pCi/m3 and were similar to levels measured in 1985 (0.025 pCi/m5), 1986 (0.027 pCi/m, except for the period from May 16 through June 6 when it was influenced by the nuclear reactor accident at Chernobyl), 1987 (0.027 pCi/mi), 1988 (0.031 pCi/m ),

3 3 3 1989 (0.028 pCi/m ), 1990 (0.024 pCi/m ), 1991 (0.022 pCi/m ), 1992 (0.022 pCi/mr),

1993 (0.022 pCi/rn) 1994 (0.022 pCi/rn) 1995 (0.02 1 pCi/in) 1996 (0.02 1 pCi/in),

1997 (0.022 pCi/m ), 1998 (0.024 pCi/rn 3 ), 1999 (0.027 pCi/m 3 ), 2000 (0.028 pCi/rn3 ),

2001 (0.027 pCi/m3 ) and 2002 (0.027 pCi/in3 ).

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Gamma isotopic results were below the LLD level of 0.01 pCi/m3 in all quarterly composites.

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

5.3 Aquatic Radioactivity Well water was collected quarterly from one onsite well and one offsite well and analyzed for tritium and gamma-emitting nuclides. All results were below the limits of detection, indicating that there was no measurable amount of radioactivity due to the Station's releases.

Weekly surface water samples from the Illinois River at Seneca and Illinois River Downstream were composited monthly and analyzed for gamma and beta-emitting nuclides. Weekly samples from the same locations were composited quarterly and analyzed for tritium. None of the composited samples indicated the presence of gamma-emitting nuclides above their respective LLD levels.

Gross beta activity averaged 5.4 pCi/L in the Illinois River at Seneca samples, with a range of 3.5-7.2 pCi/L. The Illinois River, Downstream sample averaged 5.6 pCi/L, with a range of 4.4-7.3 pCi/L.

Tritium activity in the quarterly upstream samples, Illinois River at Seneca, averaged 559 pCi/L with a maximum first quarter concentration of 1,340 pCi/L. In the Illinois River Downstream samples, tritium activity averaged 639 pCi/L with a maximum first quarter concentration of 1,682 pCi/L. These values are well below the reporting level of 30,000 pCi/L.

Sediment samples were collected twice a year from two indicator locations (Illinois River, Downstream) and analyzed for gamma-emitters. Cs-134 and Cs-137 concentrations were below the detection limits of 0.15 pCi/g dry weight and 0.18 pCi/g dry weight, respectively, in all samples.

Levels of gamma radioactivity in fish were measured and found in all samples to be below the lower limit of detection for the program.

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

I-131 remained below the detection limit of 1.0 pCi/L. Cs-134, Cs-137 and Ba/La-140 were below the LLD levels of 15, 18 and 15 pCi/L, respectively.

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

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5.6 Sample Collections All samples were collected as scheduled except those listed in the Listing of Missed Samples, Section 2 of Appendix Iml.

5.7 Program Modifications New fish location L-34, LaSalle Cooling Lake, was added to the program in 2003.

6.0 ANALYTICAL PROCEDURES I

Procedures used during the period covered in this report remained unchanged. A summary of the procedures used for analyzing radioactivity in environmental samples is given in Appendix VI of the Annual Radiological Environmental Operating Report for 1993. The submittal date for this report was April 26, 1994.

7.0 MILCH ANIMALS AND NEAREST LIVESTOCK CENSUS A census of milch animals was conducted within a 6.2-mile radius of the Station. The survey was conducted by "door-to-door" canvas by A. Lewis on August 25, 2003. The nearest livestock census was conducted by A. Lewis on August 25, 2003. The results of each census are presented on pages 33 and 34, Section 5.0 of Appendix m.

8.0 NEAREST RESIDENT CENSUS A census of the nearest residences within a 6.2-mile radius was conducted by A. Lewis on August 25, 2003.

Results of the nearest residence census are presented on page 35, Section 5.0 of Appendix mI.

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

10.0 ERRATA DATA Errata data is presented in Appendix V.

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LASALLE APPENDIX I DATA TABLES AND FIGURES I-1

Table 1.1-1 LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2003)

UNITS ONE AND TWO DOCKET NUMBERS 50-373 AND 50-374 GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES Estirnated, I Units - 1st Qtr 1 2nd Qtr I 3rdQtr I 4th Qtr - Total Error % I A. Fission and Activation Gas Releases

1. Total Release Ci 5.21E+03 4.38E+03 7.05E+03 7.36E+03 3.50E+O1 Activity
2. Average uCitsec 6.69E+O2 5.57E+02 8.87E+02 9.26E+02 Release Rate
3. Percent of OK Technical Specification Limiit.

B. Iodine Releases l.TotaII-131 Ci 3.14E.01 2.10E-01 3.32E.01 3.35E-01 350E+01 Activity ]_

2. Average uCi/sec 4.04E-02 2.67E-02 4.18E-02 4.21 E-02 Release Rate
3. Percent of * * * -

Technical Specification C. Particulate (> 8 day half-life) Releases

1. Gross Ci 8.96E-03 1.22E-02 2.57E-02 2.98E-D2 330E+01 Activity._
2. Average Usec 1.15E-03 1.55E.03 3.24E.03 3.75E-03 Release Rate
3. Percent of
  • Technical Specification Limit...
3. Gross Alpha Ci 6.91E-05 <1.OOE-1I 1.43E-05 <c.OOE-l1 Activitv II.

D.TritiuPt Releases l.TotalRelease Ci 3.50E+01 2.28E+01 4.10E+01 J 3.71E+01 j 2.10E+01 Activity _ I l I

2. Average uCiisec 4.50E+0O 2.90E+00 5.16E+00 4.67E+00 Release Rate
3. Pcrcent of
  • i
  • Technical Specification Limit _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

n"* This information is contained in the Radiological Impact on Man section of the report

<'n Indicates activity of sample is less than LLD given in uCilml 1-2

Table 1.2-1 LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2003)

LIQUID RELEASES UNIT 1 and UNIT 2 SUMMATION OF ALL LIQUID RELEASES IEstimated Units I Ist Qtr 2nd Qtr I 3rd Qtr I 4th Qtr jTotal Error %

A. Fission and Activation Products I;Total Activity Released Ci I <LLD <LLD I <LLD q<LLD NIA

2. Average Concentration Released uCi/ml I <LLD <LLD <LLD l<LLD
3. Percent of Applicable Limit  %

B. Tritium

1. Total Activity Released Ci <LID <LLD <LLD l <LLD N/A
2. Average Concentration Released uCi/ml <LLD <LID <LLD f <LLD
3. Percent of Applicable Limit j C. Dissolved Noble Gases
1. Total Activity Released Ci <LD <LLD <LLD <LLD NIA
2. Average Concentration Released uCi/ml <LLD <LLD <LLD <LLD
3. Percent of Applicable Limit _

D. Gross Alpha 1.Total Activity Released (estimate) Ci <LLD <LIZ_ <LLD <LLD

2. Average Concentration Released uCirnl <LLD U) L ULLD D NLA
3. Percent of Applicable Limit I .

lE.VolumeofLiquid Wasteto DischargeI liters I O.OOE+00 0.OOE+00 O.OOE+00 0 I0.OE+O I NIA lF.VolumeofDilutlonWater lliters I O.OOE+00 I O.OOE+00 O.E+00 0.00E+00 NA

"*" This information is contained in the Radiological Impact on Man section of the report

".0 Indicates activity of sample is less than LLD given inuCilml 1-3

TABLE 2.0-1 LASALLE Table 2.0-1 has been deliberately deleted. For Solid Waste Disposal detail, refer to the LaSalle County Station 2003 Effluent Report.

1-4

Figure 3.1-1 (in mrad)

Estimated Cumulative Gamma Dose from the LaSaUeStAion forft period January-December 2003 Isopleth Labels Small figure - multiply by 104 Large figure - mulUply by 104O 2ant 000

/ 10 I

,tf / ~Otto" S 252

lioRtre ITd74 cn<2> -

\ vI 9 icow It--- t8 to 20r7

\

'-5

Figure 3.1-2 Estimated Total Concentratlons.(in pCi/m3) of Noble Gases from the LaSalle Station for the period January-December 2003 Isopleth Labels Small figure - multiply by I04 Large figure - multiply by 1O 2 ml

- - I ===:f I no 3

Po A0 oCm 35 l 1/ F Is e 20 m(X 1-6

Figure 3.1-3 Estimated Total Concentrations (in pCUm3) of lodines from the LaSalle Station for the period January-December 2003 lsopleth Label-s Small figure - multiply by 104 Large figure - multiply by i0-4 ml

/ c ( tong

/ 5 10 15 20m

\ flt _-50 n_ to1 15 20 ml

. . I 1-7

Figure 3.1-4 Estimawd Total CO ntratons (in pC/m3) of Particulates from the LaSalle Station for the period January-December 2003 Isopletfh Labels Small figure - multiply by O4 1 Large figure - muliply by 1O3 52 I 2 mtl d

/ oylo /

Ilnois

/ Otto Old Stro W~93-ITp O , 10 15 20ml 1-

Table 3.1-1 LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 INFANT RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 7.09E-02 8.49E-02 1.31E-01 1.38E-01 4.25E-01 (MRAD) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

BETA AIR 3.04E-03 2.80E-03 4.66E-03 5.19E-03 1.57E-02 (MRAD) (ESE ) (EBSE ) (ESE ) (ESE ) (ESE )

TOT. BODY 5.36E-02 6.42E-02 9.92E-02 1.04E-01 3.21E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

SKIN 5.67E-02 6.75E-02 1.05E-01 .10OE-01 3.39B-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

ORGAN 5.91E-03 3.93E-01 8.05E-01 2.70E-01 1.47B+00 (MREM) (ESE ) (ESE ) (ESE ) (ESE ) (ESE THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10CFR 50 APP. I INFANT RECEPTOR


  • OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY

  • OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 1.42 1.70 2.63 2.75 10.0 4.25 BETA AIR (MRAD) 10.0 0.03 0.03 0.05 0.05 20.0 0.08 TOT. BODY (MREM) 2.5 2.14 2.57 3.97 4.16 5.0 6.42 SKIN (MREM) 7.5 0.76 0.90 1.40 1.47 15.0 2.26 ORGAN (MREM) 7.5 0.08 5.24 10.73 3.61 15.0 9.83 THYROID THYROID THYROID THYROID THYROID RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-9

Table 3.1-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 CHILD RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 7.09E-02 8.49E-02 1.31E-01 1.38E-01 4.25E-01 (MR-A) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

BETA AIR 3.04E-03 2.80E-03 4.66E-03 5.19E-03 1.57E-02 (MRAD) (ESE ) (ESE ) (ESE ) (ESE ) (ESE )

TOT. BODY 5.36E-02 6.42E-02 9.92E-02 1.04E-01 3.21E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

SKIN 5.67E-02 6.75E-02 1.05E-01 1.IOE-01 3.39E-01 (MREM) (WSW ) (WSW ) (WSw J (WSW ) (WSW )

ORGAN 4.95E-03 3.95E-01 8.09E-01 2.72E-01 1.48E+00 (MREM) (ESE ) (ESE ) (ESE ) (ESE ) (ESE )

THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10CFR 50 APP. I CHILD RECEPTOR

_------- % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY I OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 1.42 1.70 2.63 2.75 10.0 4.25 BETA AIR (MRAD) 10.0 0.03 0.03 0.05 0.05 20.0 0.08 TOT. BODY (MREM) 2.5 2.14 2.57 3.97 4.16 5.0 6.42 SKIN (MREM) 7.5 0.76 0.90 1.40 1.47 15.0 2.26 ORGAN (MREM) 7.5 0.07 5.27 10.79 3.63 15.0 9.88 THYROID THYROID THYROID THYROID THYROID RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1

1-10

Table 3.1-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 7.09E-02 8.49E-02 1.31E-01 1.38E-01 4.25E-01 (MRAD) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

BETA AIR 3.04E-03 2.SOE-03 4.66E-03 5.19E-03 1.57E-02 (MRAD) (ESE ) (ESE ) (ESE ) (ESE ) (ESE )

TOT. BODY 5.36E-02 6.42E-02 9.92E-02 1.04E-01 3.21E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

SKIN 5.67E-02 6.75E-02 1.05E-01 1.10E-01 3.39E-01 (MREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

ORGAN 3.83E-03 2.37E-01 4.86E-01 1.64E-01 8.92E-01 (MREM) (NNE ) (NNE ) (NNE ) (NNE ) (NNE )

THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10CFR 50 APP. I TEENAGER RECEPTOR


 % OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 1.42 1.70 2.63 2.75 10.0 4.25 BETA AIR (MRAD) 10.0 0.03 0.03 0.05 0.05 20.0 0.08 TOT. BODY (MREM) 2.5 2.14 2.57 3.97 4.16 5.0 6.42 SKIN (MREM) 7.5 0.76 0.90 1.40 1.47 15.0 2.26 ORGAN (MREM) 7.5 0.05 3.17 6.49 2.18 15.0 5.94 THYROID THYROID THYROID THYROID THYROID RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-11

Table 3.1-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 ADULT RECEPTOR 1ST 2ND 3RD 4TH TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC GAMMA AIR 7.09E-02 8.49E-02 1.31E-01 1.38E-01 4.25E-01 (MRAD) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

BETA AIR 3.04E-03 2.80E-03 4.66E-03 5.19E-03 1.57E-02 (MRAD) (ESE ) (ESE ) (ESE ) (ESE ) (ESE )

TOT. BODY 5.36E-02 6.42E-02 9.92E-02 1.04E-01 3.21E-01 (MPREM) (WSW ) (WSW ) (WSW ) (WSW ) (WSW )

SKIN 5.67E-02 6.75E-02 1.05E-01 1.10E-01 3.39B-01 (MREM) (WSW ) (WSW ). (WSW ) (WSW ) (WSW )

ORGAN 3.76E-03 2.48E-01 5.07E-01 1.71E-01 9.29E-01 (MREM) (NNE )(NN (NNE ) (NN (NNE THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10CFR 50 APP. I ADULT RECEPTOR

_----------- OF APP I. ---------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY t OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I GAMMA AIR (MRAD) 5.0 1.42 1.70 2.63 2.75 10.0 4.25 BETA AIR (MRAD) 10.0 0.03 0.03 0.05 0.05 20.0 0.08 TOT. BODY (MREM) 2.5 2.14 2.57 3.97 4.16 5.0 6.42 SKIN (MREM) 7.5 0.76 0.90 1.40 1.47 15.0 2.26 ORGAN (MREM) 7.5 0.05 3.30 6.76 2.28 15.0 6.20 THYROID THYROID THYROID THYROID THYROID RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-12

Table 3.2-1 LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 INFANT RECEPTOR 1ST 2ND 3RD 4 TR DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0.00E+00 0.00E+00 0.00E+00 0.OOE+00 0.00E+00 BODY INTERNAL 0.OOE+00 0.00E+00 0.00F+00 0.00E+00 0.0OE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10 CFR 50 APP. I


  • OF APP I. ------------

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0.00 'O 00 0.00 0.00 3.0 0.00 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 10.0 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-13

Table 3.2-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 CHILD RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0.QOE+00 0.OOE+00 0.OOE+00 0.OOE+00 0.00E+00 BODY INTERNAL 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10 CFR 50 APP. I


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

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY '; OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0.00 0.00 0.00 0.00 3.0 0.00 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 10.0 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-14

Table 3.2-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 TEENAGER RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL O.O0E+00 O.OOE+00 O.OOE+00 0.OOE+00 0.OOE+00 BODY INTERNAL 0.OOE+0O 0.OOE+00 O.OOE+00 O.00E+00 0.OOE+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10 CFR 50 APP. I


t OF APP I. ----

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0.00 0.00 0.00 0.00 3.0 0.00 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 10.0 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-15

Table 3.2-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2003 MAXIMUM DOSES (MREM) RESULTING FROM AQUATIC EFFLUENTS PERIOD OF RELEASE - 01/01/03 TO 12/31/03 CALCULATED 03/31/04 ADULT RECEPTOR 1ST 2ND 3RD 4TH DOSE TYPE QUARTER QUARTER QUARTER QUARTER ANNUAL JAN-MAR APR-JUN JUL-SEP OCT-DEC TOTAL 0.OOE+00 0.OOE+00 0.OOE+00 0.00E+00 0.00E+00 BODY INTERNAL 0.00E+00 0.00E+00 0.005+00 0.00E+00 0.00E+00 ORGAN THIS IS A REPORT FOR THE CALENDAR YEAR 2003 COMPLIANCE STATUS - 10 CFR 50 APP. I


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

QTRLY 1ST QTR 2ND QTR 3RD QTR 4TH QTR YRLY  % OF OBJ JAN-MAR APR-JUN JUL-SEP OCT-DEC OBJ APP. I TOTAL BODY (MREM) 1.5 0.00 0.00 0.00 0.00 3.0 0.00 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 10.0 0.00 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995.

ODCM DATABASE VERSION 1.1 January 1995 1-16

Table 3.3-1 LASALLE STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/03 TO 12/31/03 CALCULATED 03/31/04

1. 10 CFR 20.1301 (a)(1) Compliance Total Effective Dose Eqivalent, mrem/yr 6.83E-01 10 CFR 20.1301 (a)(1) limit mrem/yr 100.0

& of limit 0.68 Compliance Summary - 10CFR20 lst 2nd 3rd 4th  % of Qtr Qtr Qtr Qtr Limit TEDE 1.41E-01 1.58E-01 1.85E-01 1.98E-01 0.68 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-17

Table 3.3-1 (continued)

LASALLE STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/03 TO 12/31/03 CALCULATED 03/31/04

2. 10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit  % of (mrem) (mrem) Limit Whole Body Plume 3.21E-01 (DDE) Skyshine 3.1GE-01 Ground 2.09E-03 Total 6.41E-01 25.0 2.56 Organ Dose Thyroid 8.66E-01 75.0 1.16 (CDE) Gonads 1.60E-02 25.0 0.06 Breast 1.61E-02 25.0 0.06 Lung 1.61E-02 25.0 0.06 Marrow 1.62E-02 25.0 0.06 Bone 1.63E-02 25.0 0.07 Remainder 1.68E-02 25.0 0.07 CEDE 4.18E-02 TEDE 6.83E-01 100.0 0.68

-RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-18

Table 3.3-1 (continued)

LASALLE STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/03 TO 12/31/03 CALCULATED 03/31/04

1. 10 CFR 20.1301 (a)(1) Compliance Total Effective Dose Eqivalent, mrem/yr 2.86E-01 10 CFR 20.1301 (a)(1) limit mrem/yr 100.0

% of limit 0.29 Compliance Summary - 'LOCFR20 1st 2nd 3rd 4th  % of Qtr Qtr Qtr Qtr L imit TEDE 4.68E-02 8.88E-02 6.07E-02 8.96E-02 0.2 9 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-19

Table 3.3-1 (continued)

LASALLE STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/03 TO 12/31/03 CALCULATED 03/31/04

2. 10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit  % of (mrem) (mrem) Limit Whole Body Plume 0.00E+00 (DDE) Skysh. Lne 2.86E-01 Grouncd 0.OOE+00 Total 2.86E-01 25.0 1.14 Organ Dose Thyroiid 0.OOE+00 75.0 0.00 (CDE) Conadis 0.OOE+00 25.0 0 100 Breast - .OOE+O0 25.0 0.00 Lung 0. OOE+00 25.0 0.00 Marrov t 0.OOE+00 25.0 0.00 Bone 0.OOE+00 25.0 0.00 Remairnder 0.OOE+00 25.0 0.00 CEDE 0.00E+00 TEDE 2.86E-01 100.0 0.29 RESULTS BASED UPON: ODCM ANNEX REVISION 3.0 MAY 2001 ODCM SOFTWARE VERSION 1.1 January 1995 ODCM DATABASE VERSION 1.1 January 1995 1-20

Table 3.4-1 LaSalle Station - Unit 1 MAXINMUDOSES RESULTING FROM AIR8ORNE RELEASES 2003 TYPE OF DOSE FIRST QUARTER SECONO QUARTER THIRD QUARTER FOURTH QUARTER ANNUAL GAM AIR (mrad) 5.800E-02fSSE) 1.385E-01(WSW) 1.370E-O1(WSW) 1.015E-01( SE) 3.537E-01(WSW)

BETA AIR (mrad) 9.350E-03( SE) 1.125E-02(WSW) 1.145E-02(WSW) 1.565E-02( SE) 3.844E-02( SE)

WHOLE BODY (mrem) 1.720E-02(ESE) 3.635E-02( SW) 4.005E-02(SSW) 3.070E-02(ESE) 1.090E-01(SSW)

SKIN (mrem) 2.615E-02( SE) 4.715E-02( SW) 4.740E-02(SSW) 4.600E-02( SE) 1.295E-OI(SSW)

ORGAN (mrem) 5.200E-03( SE) 6.500E-03CWSW) S.OSOE-03(WSW) 6.050E-03( SE) 1.734E-02( SE)

CRITICAL PERSON Child Child Child Child Child CRITICAL ORGAN Tkyroid Thyroid Thyroid Thyroid Thyroid COMPLIANCE STATUS 10-CFR 50 APP. I 10 CFR 50 APP.I TYPE OF DOSE QUARTERLY OBJECTIVE S OF APP. I YEARLY OBJECTIVE X OF APP. I GAMMA AIR (mrad) 5.0 2.77 10.0 3.54 BETA AIR (mrad) 10.0 0.16 20,0 0.19 WHOLE BODY (mrem) 2.5 1.60 5.0 2.18 SKIN (mremn) 7.5 0.63 15.0 0.86 ORGAN (mrem) 7.5 0.08 15.0 0.12 CRITICAL PERSON Child Child CRITICAL ORGAN Thyroid Thyroid Calculation used release data from the following:

Unit 1 & 2 - Chimney Date of calculation: 4/12/2004 1-21

Table 3.4-1 (continued)

LaSalle Station - Unit 2 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 2003 TYPE OF DOSE FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER ANNUAL GAMIh AIR (mrad) 5.800E-02(SSE) 1.385E-01(WSW) 1.370E-01(WSW) 1.015E-OI1 SE) 3.537E-Q1(WSW)

BETA AIR (mrad) 9.350E-03( SE) 1.125E-02(WSW) 1.145E-02(WSW) 1.565E-02( SE) 3.844E-02( SE)

WHOLE BOGY (mrem) 1.720E-02(ESE) 3.635E-02( SW) 4.OSE-02(SSW) 3.070E-02(ESE) 1.090E-01(SSW)

SKIN (mrem) 2.615E-02( SE) 4.715E-02( SW) 4.74DE-02(SSW) 4.600E-02( SE) 1.295E-O1(SSW)

ORGAN (mrem) 5.20GE-03( SE) S6.500E-03(WSW) 5.050E-03(WSW) 6.0SOE-03( SE) 1.734E-02( SE)

CRITICAL PERSON Child Child Child Child Child CRITICAL ORGAN Thyroid Thyroid Thyroid Thyroid Thyroid COMPLIANCE STATUS 10 CFR 50 APP. I 10 CFR 50 APP.I TYPE OF DOSE QUARTERLY OBJECTIVE X OF APP. I YEARLY OBJECTIVE I OF APP. I GAIA AIR (mrad) 5.0 2.77 10.0 3.54 BETA AIR (mrad) 10.0 0.16 20.0 0. 19 WHOLE BODY (mrem) 2.5 1.60 5.0 2.18 SKIN (tmrem) 7.5 0.63 15.0 0.86 ORGAN (mrem) 7.5 0.08 15.0 0.12 CRITICAL PERSON Child Child CRITICAL ORGAN Thyroid Thyroid Calculation used release data from the following:

Unit 1 62 - Chimney Maximum Offsite Values (PCi/m3)

Iodine 2.58E-02 Particulate Matter 4.37E-01 Data Recovery 99.9%

(priority parameters)

Date of calculation: 4/12/2004 1-22

Figure 5.0-1 I. 4

_- _- m 13 1* _ 1.

Mow

  • K t X TM Locamuon LASALLE COUNTY STATION INNER RING TLD LOCATIONS 1-23

Figure 5.0-2 216-4 a 21W3sw 215-4 2154 .

R 24-4

  • 214-3 213-4 2134. 205-3 205-4
  • 211-1 Grind Rtdge 211-2 207-1 I

0020-2 Kne msn Sigumm K~rnn stIr Gruno LA sal. County Coupt Linoston County Xi n LMLYO a Lasine Staolon E:3-w g du 0 S OW4.e LASALLE COUNTYSTATION OUTER IUNG TLD LOCATIONS

.. I 1-24

Figure 5.0-3 I

.4 1 i

Grand Ridge Verona Kfnsman II a pantom Stator Orundy La 1.l1. County _- - - -Oun -_ _

1Ak S~pMA Lontkm L-npton County a wasc Stali a~ i i4 A. 1=tP m L-0 Ncarie No. I Lo07 Subta LOS OrUtet No.3 LOS Marwie 044 Rte. 170 L.0 Sitult wOS Oislt NO. 131 hAWsom 1.6 tarsbNeo.6 1-25

Figure 5.0-4 To 142 LaSalle County Station

.X.4 ingestion and Waterbiome Exposure Pathway 5 a10

.a 6 U Kolani.Iu I ~Sample L~ocations IE 21 Illinois RiverWell I2LSCS Onsite atSaneca at Station

  • Fish N Milk 28 Marseilles Well

-35 Marseilles Pool ofMllinois River

+ Sediment 1 f361Iinois River Upstream of Discharge

-41 Iinois River Downstrem L-42 Biros Farm

>34 LaSalle Cooling Lake 1-26

TABLE 5.0-1 on a.')

LaSalle County Station ,a Z Radiological Environmental CIO Monitoring Stations .¢ 7 bo L-01 Nearsite No. 1 v v L-03 Onsite No. 3 v L-04 Rte. 170 O .

L-05 Onsite No. 5 v v L-06 Nearsite No. 6 v v L-07 Seneca L-08 Marseilles L-10 Streator v L-1 Ransom v v L-21 Illinois River at Seneca . . . .v L-27 LSCS Onsite Well at Station . . .

L-28 Marseilles Well . . . . .

L-34 LaSalle Cooling Lake . . v L-35 Marseilles Pool of Illinois River . . v L-36 Illinois River Upstream of Discharge . . v L-40 Illinois River Downstream . . . . v L41 Illinois River Downstream . . . .

L42 Biros Farm L-Quadrant 1 . . . . .

L-Quadrant 2 . . . .

L-Quadrant 3 L-Quadrant 4 . . ..

L-Control . .

CENSUS Dairy Residence Livestock I-27

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

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

L-01 Nearsite No. 1 1.5 NNW R L-03 Onsite No. 3 1.0 ENE D L-04 Rte. 170 3.2 E E L-05 Onsite No. 5 0.3 ESE F L-06 Nearsite No. 6 0.4 WSW M L-07 Seneca 5.2 NNE B L-08 Marseilles 6.0 NNW R L-10 (C) Streator 13.5 SW L L-11 Ransom 6.0 S 3

2. TLDs
a. Same as No. 1.
b. Special TLD locations Distance Direction Sector Site Code (miles)

Inner Ring L-101-1,2 0.5 N A L-102-1,2 0.6 NNE B L-103-1,2 0.7 NE C L-104-1,2 0.8 ENE D L-105-1,2 0.7 E E L-106-1,2 1.4 ESE F L-107-1,2 0.8 SE G L-108-1,2 0.5 SSE H L-109-1,2 0.6 S 3 L-110-1,2 0.6 SSW K L-11lb-1,2 0.8 SW L L-112-1,2 0.9 WSW M L-113a-1,2 0.8 W N L-114-1,2 0.9 WNW P L-115-1,2 0.7 NW Q L-116-1,2 0.6 NNW R a Control (background) locations are denoted by a "C" after site code. All other locations are indicators.

I-28

TABLE 5.0-2 (continued)

LASALLE STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

2. TLDs
b. Special TLD locations (continued)

Distance Direction Sector Site Code (mniles)

Outer Ring L-201-3,4 4.0 N A L-202-3,4 3.6 NNE B L-203-1,2 4.0 NE C L-204-1,2 3.2 ENE D L-205-1,2 3.2 ESE F L-205-3,4 5.1 E E L-206-1,2 4.3 SE G L-207-1,2 4.5 SSE H L-208-1,2 4.5 S J L-209-1,2 4.0 SSW K L-210-1,2 3.3 SW L L-211-1,2 4.5 WSW M L-212-1,2 4.0 WSW M L-213-3,4 4.9 W N L-214-3,4 5.1 WNW P L-215-3,4 5.0 NW Q L-216-3,4 5.0 NNW R

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

L-42 (C) Biros Farm 14.2 E E

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

L-27 LSCS Onsite Well at Station At Station L-28 Marseilles Well 7.0 NWV Q Control (background) locations are denoted by a "C" afier site code. All other locations are indicators I-29

TABLE 5.0-2 (continued)

LASALLE STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

5. SURFACE WATER Distance Direction Sector Site Codea Location (mi~les)

L-21 (C) Illinois River at Seneca 4.0 NE C L40 Illinois River Downstream 5.2 NNW R

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

L-34 LaSalle Cooling Lake 2.0 E E L-35 Marseilles Pool of Illinois River 6.5 NW Q L-36 (C) Illinois River Upstream of Discharge 4.3 NNE B

7. SHORELINE SEDIMENTS Distance Direction Sector Site Codea Location (miles)

L-40 Illinois River Downstream 5.2 NNW R L-41 Illinois River Downstream 4.6 NNW A

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

L-Quadrant-1 Diane Partridge 4.5 NE C L-Quadrant-2 Mike & Gina Welbourne 3.8 ESE H L-Quadrant-3 Michael Olsen 1.5 WSW M L-Quadrant-4 Robert Eisers 4.5 NW Q L-Control(C) Eugene Clements 10.0 NW Q a Control (background) locations are denoted by a "C" after site code. All other locations are indicators.

I-30

TABLE 5.0-2 (continued)

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

1. Airborne Onsite, Nearfield and Control Filter exchange Gross Beta Weekly Particulates weekly Gamma Isot. Quarterly Composite L-0 I Nearsite No. I (or irTweekly gross beta ina L-03 Onsite No. 3 sample exceeds 5X the L-05 Onsite No. 5 average concentration of L-06 Nearsite No. 6 preceding calendar quarter).

L-10 (C) Streator Far Field Gamma Isot. ]fgrcss beta ina sample exceeds I 0 times the yearly mean ofcontrol L-04 Rte. 170 samples and radioactivity is L-07 Seneca confirmed as hbaing its origin in L-08 Marseilles airborne eftuents from station.

L-I I Ranson

2. Airborne Same as 1. Canister exchange 1-131 Biweekly Iodine biweekly
3. Air Sampling Same as 1. - Test and Weekly Train Maintenance
4. TLDs a. Same as 1. Quarterly Gamma Quarterly (two TLDs per location)
b. L-101-1,2 Inner Ring 102-1,2 103-1,2 104-1,2 105-1,2 106-1,2 107-1,2 108-1,2 109-1,2 110-1,2 I Ilb-1,2 112-1,2 113a-1,2 114-1,2 115-1,2 116-1,2
c. L-201-3,4 Outer Ring 202-3,4 203-1,2 204-1,2 205-1,2 205-3,4 206-1,2 207-1,2 208-1,2 209-1,2 210-1,2 211-1,2 a Control (background) locations are denoted by a 'C' in this column. All other location are indicators.

I-31

TABLE 5.0-2 (continued)

LASALLE COUNTY 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)

Outer Ring Quarterly Gamma Quarterly L-212-1,2 213-3,4 214-3,4 215-3,4 216-3,4

5. Milk L-42 (C) Biros Farm Biweekly: I-131 Biweekly-May-October Gamma Isot. May-October Monthly: Monthly:

November-April November-April

6. Vegetables Quad I D. Partridge Annually - two varieties Gamma Isot. Annually Quad 2 Mike & Gina from each location as 1-131 Annually Welbourne available at harvest.

Quad 3 M. Olson Quad 4 R. Eisers Control E. Clements

7. Ground/Well L-27 LSCS Onsite Well Quarterly Gamma Isot. Quarterly Water L-28 Marseilles Well Tritium S. Surface Water L-21 (C) Illinois River Weekly Gross Beta Monthly composite.

at Seneca Gamma Isot. Monthly composite.

L40 Illinois River Tritium Quarterly composite.

Downstream

9. Fish (at least L-34 LaSalle Two times/year Gamma Isot. Two times/year on two species) Cooling Lake edible portions only.

L-35 Marseilles Pool of Illinois River L-36 (C) Illinois River Upstream of Discharge

10. Sediments L-40 Illinois River Semiannually Gamma Isot. Semiannually Downstream L41 Illinois River Downstream I. LandUse Census Milch Animals
a. SiteBoundaryto2miles - a. Enumeration Annually during grazing by a door to door season.

or equivalent counting technique.

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

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

I-32

TABLE 5.0-2 (continued)

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

11. Land Use Census (continued)
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 feed:

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

<25%, 25-50%,

50-75%, or>75%.

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

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

I-33

Table 5.0-3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373, 50-374 Location of Facility LaSalle County. Illinois Reporting Period 1st Quarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean Range Meana Results Range _ _ _ _ _ _

Air Gross 65 0.01 0.030 (52/52) L-10, Streator 0.033 (13/13) 0.033 (13/13) 0 Particulates Beta (0.018-0.047) 13.5 mi. SW, Sector L (0.021-0.049) (0.021-0.049)

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

Milk I-131 3 5 None - - <LLD 0 (pCi/L)

Gamma Spec. 3 Cs-134 15 None - - <LLD 0 Cs-137 18 None - - <LLD 0 Ba/La-140 15 None - - <LLD 0 Other Gammas 10-15 None - - <LLD 0 Surface Water Gross Beta 6 4 6.5 (3/3) L-40, Illinois River 6.5 (3/3) 6.4 (3/3) 0 (pCi/L) (5.7-7.3) Downstream (5.7-7.3) (5.4-7.2) 5.2 mi. NNW, Sector Gamma Spec. 6 R Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCM-Required 15-30 <LLD <LLD 0 Gammas Tritium 2 200 1,682 (1/1) 1,682 (1/1) 1,340 (1/1) 0 LAO, Illinois River Downstream 5.2 mi. NNW, Sector R

Well Water Tritium 2 200 <LLD - - None 0 (pCi/L)

Gamma Spec. 2 Cs-134 15 <LLD - - None 0 Cs-137 18 <LLD - - None 0 Other ODCM-Required 15-30 <LLD - - None 0 Gammas Gamma Gamma Dose 84 9.7 24.6 (82/82) L-104-lb, 0.8 mi. 28.0 (1/1 21.0 (2/2) 0 Background (19.0-28.0) ENE, Sector D (21.0-21.0)

(TLDs)

(mR/Qtr.)

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

b Locations L-104-1, 105-1, 11 lB-I, 211-1 and 215-3 had identical results of 28.0 mR. Only L-104-1 is detailed in this summary.

I - 34

Table 5.0-4 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373. 50-374 Location of Facility LaSalle County. Illinois Reporting Period 2nd Quarter 2003 (County, State)

Sample Type and Indicator Location with Highest Highest Control Number of Type Number of Locations Quarterly Mean Meana Locations Non-routine (Units) Analyses LLD Meana Range Meana Results Range Range Air Gross 65 0.01 0.019 (52/52) L-10 Streator 0.021 (13/13) 0.021 (13/13) 0 Particulates Beta (0.014-0.027) 13.5 mi. SW, Sector L (0.015-0.026) (0.015-0.026)

(pCi/m ) Gamma Spec. 5 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 I-131 30 0.07 <LLD - - <LLD 0 (pCi/n 3 )

Milk I-131 6 1 None - - <LLD 0 (pCilL)

Gamma Spec. 6 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. 6 (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. 2 Sediments (pCifg dry) Cs-134 0.15 <LLD - - None 0 Cs-137 0.18 <LLD - - None 0 a Mean and range based on detectable measurements only. Fractions indicated in parentheses.

I - 35

Table 5.0-4 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373. 50-374 Location of Facility LaSalle County. Illinois Reporting Period 2nd Ouarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Mean a Quarterly Mean l Range Meana Results Range Range Surface Water Gross Beta 6 4 5.6 (3/3) L-40, Illinois River 5.6 (3/3) 5.2 (3/3) 0 (pCi/L) (4.8-6.6) Downstream (4.8-6.6) (4.8-5.7) 5.2 mi. NNW, Sector Gamma Spec. 6 R Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCM-Required 15-30 <LLD <LLD 0 Gammas Tritium 2 200 205 (1/1) L-21, Illinois River at 247 (1/1) 247 (1/1) 0 Seneca, 0.4 mi. NE, Sector C Well Water Tritium 2 200 <LLD None 0 (pCi/L)

Gamma Spec. 2 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM-Required 15-30 <LLD None 0 Gammas Gamma Gamma Dose 84 9.7 23.2 (82/82) L-207-2 28.0 (1/1) 20.5 (2/2) 0 Background (14.0-28.0) 4.5 mi. SSE, Sector H (20.0-21.0)

(TLDs)

(mR/Qtr.)

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

I - 36

Table 5.0-5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373. 50-374 Location of Facility LaSalle County. Illinois Reporting Period 3rd Quarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Mean a Quarterly Mean Range Meana Results Range Range Air Particulates Gross Beta 65 0.01 0.027 (52/52) L-05, Onsite No. 5, 0.030 (13/13) 0.029 (13/13) 0 (pCi/m 3 ) (0.014-0.043) 0.3 mi. ESE, Sector F (0.015-0.043) (0.014-0.048)

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

Milk 1-131 6 1 None - - <LLD 0 (pCiIL)

Gamma Spec. 6 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 Vegetation 1-131 10 0.06 <LLD -

(pCi/g wet) <LLD 0 Gamma Spec. 10 Cs-I 34 0.06 <LLD - - <LLD 0 Cs-137 0.08 <LLD - - <LLD 0 Other Gammas 0.01-0.10 <LLD - - <LLD 0 Surface Water Gross Beta 6 4 4.9 (3/3) L-2 1,Illinois River at 5.3 (2/3) 5.3 (3/3) 0 (pCiKL) (4.4-5.3) Seneca (5.2-5.3) (5.2-5.3) 6 4.0 mi. NE, Sector C Gamma Spec.

Cs-134 10 <LLD <LLD 0 Cs-137 10 <LLD <LLD 0 Other ODCM-Required 20 <LLD <LLD 0 Gammas 2

Tritium 200 401 (1/1) L-21, Illinois River at 434 (1/1) 434 (1/1)

Seneca 0 1 4.0 mi. NE, Sector C Mean arid range based on detectable measurements only. Fractions indicated in parentheses.

I - 37

Table 5.0-5 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373. 50-374 Location of Facility LaSalle County. Illinois Reporting Period 3rd Ouarter 2003 (County, State)

Sample Type and Indicator Location with Highest Highest Control Number of Type Number of Locations Quarterly Mean Meana Locations Non-routine (Units) Analyses LLD Meana Range Meana Results Range Range Well Water Tritium 2 200 <LLD None 0 (pCi/L)

Gamma Spec. 2 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM-Required 15-30 <LLD None 0 Gammas Gamma Gamma Dose 84 9.7 22.4 (82/82) L-102-2, 0.6 mi. 26.0 (1/1) 19.5 (2/2) 0 Background (17.0-26.0 NNE, Sector B (19.0-20.0)

(TLDs)

(mR/Qtr.)

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

bL-105-2 and L-210-1 had identical means of 26.0 mR. Only L-105-2 is detailed in this summary.

I-38

Table 5.0-6 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373. 50-374 Location of Facility LaSalle County. Illinois Reporting Period 4th Quarter 2003 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units) Analyses LLD Meana Quarterly Mean _ Range Meana Results Range Range Air Particulates Gross Beta 70 0.01 0.027 (56/56) L-05b, Onsite No. 5 0.028 (14/14) 0.028 (14/14) 0 3

(pCi/m ) (0.013-0.042) 0.3 mi. ESE, Sector F (0.018-0.039) (0.017-0.038)

Gamma Spec. 5 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 I-131 35 0.07 <LLD - - <LLD 0 (pCil/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 La-140 15 None - - <LLD 0 Ba-140 60 None - - <LLD 0 Other Gammas 10-15 Fish Gamma Spec. 4 (pCi/g wet)

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

3 b Locations L-05, L-06 and L-10 had identical means of 0.028 pCi/m . Both L-05 and L-10 (Control) are detailed in this summary.

I - 39

Table 5.0-6 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373. 50-374 Location of Facility- LaSalle Countv. Tllinois Reporting Period 4th Ouarter 2003 (County, State)

Sample Type and Indicator Location With Highest Highest Control Number of Type Number of Locations Quarterly Mean-l Meana Locations Non-routine (Units) Analyses LLD Meana Range Meana Results Range Range Surface Water Gross Beta 6 4 5.3 (3/3) L-21, Illinois River at 5.5 (3/3) 5.5 (3/3) 0 (pCi/L) (4.8-6.3) Seneca, 4.0 mi. NE, (4.4-6.9) (4.4-6.9)

Gamma Spec. 6 Sector C Cs-134 15 <LLD <LLD 0 Cs-137 I8 <LLD <LLD 0 Other ODCM-Required 15-30 <LLD <LLD 0 Gammas Tritium 2 200 268 (1/1) L-40, Illinois 268 (1/1) 215 (1/1) 0 Downstream, 4.0 mi.

NNW, Sector R Well Water Gamma Spec. 2 (pCi/L)

Cs-134 15 <LLD - - None 0 Cs-137 18 <LLD - - None 0 Other ODCMI-Required 15-30 <LLD - - None 0 Gammas Tritium 2 200 <LLD - - None 0 Gamma Gamma Dose 84 9.7 26.5 (82/82) L-214-3, 5.1 mi. 39.0 (1/1) 23.0 (2/2) 0 Background (23.0-39.0) WNW, Sector P (23.0-23.0)

(TLDs)

(mR/Qtr.)

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

I - 40

LASALLE APPENDIX II METEOROLOGICAL DATA 11-1

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 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 5 0 ENE 0 0 E 0 0 ESE 0 0 SE o o SSE 0 0 S 0 0 SSW 0 0 SW 3 3 WSW 0 3 W o 0 WNW 0 2 NW 0 0 NNW 0 0 Variable 0 0 Total 8 8 1 20 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-2

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 3.3 Feet Wind Speed (in mph)

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

0 1 0

NE 0 2 0

ENE 0 1 0

E 0 0 0

ESE 0 0 0

SE 0 1 0

SSE 1 5 0

S 0 0 6 0

SSW 0 5 0

SW 0 12 0

WSW 0 4 0

W 0 3 0

0 4 0

NW 0 4 0

NNW 0 0 0

Variable 0 0 Total 0 3 17 11 16 1 48 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-3

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Slightly Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 NNE 6 NE 4 ENE 0 E 1 ESE 1 SE 3 SSE 7 S 8 SSW 3 SW 15 WSW 10 W 9 WNW 17 NW 8 NNW 6 Variable 0 Total 0 13 30 35 21 2 101 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-4

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Neutral - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 16 42 36 6 0 101 NNE 0 19 31 25 0 0 75 NE 1 5 15 24 44 1 90 ENE 0 2 6 10 7 0 25 E 0 5 8 10 0 0 23 ESE 1 3 0 0 0 0 4 SE 0 7 6 5 2 0 20 SSE 1 7 6 2 1 1 18 S 0 8 17 17 4 0 46 SSW 1 8 8 8 1 0 26 SW 1 7 26 31 10 1 76 WSW 2 4 10 13 15 2 46 W 2 9 18 13 14 0 56 WNW 1 17 41 48 39 7 153 NW 2 9 46 27 9 6 99 NNW 1 16 64 89 4 0 174 Variable 0 0 0 0 0 0 0 Total 14 142 344 358 156 18 1032 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-5

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 14 6 4 0 0 27 NNE 2 7 7 2 0 0 18 NE 1 3 6 3 10 0 23 ENE 0 4 7 2 0 0 13 E 1 13 13 6 0 0 33 ESE 1 7 8 2 0 0 18 SE 1 14 13 1 1 0 30 SSE 1 7 9 5 0 0 22 S 2 7 5 21 4 0 39 SSW 2 9 17 16 4 0 48 SW 1 8 25 17 2 1 54 WSW 0 6 11 17 5 0 39 W 0 4 14 11 5 0 34 WNW 2 15 25 35 7 14 98 NW 0 16 26 3 2 0 47 NNW 1 12 7 5 0 0 25 Variable 0 0 0 0 0 0 0 Total 18 146 199 150 40 15 568 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

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Moderately Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 0 0 0 0 1 NNE 0 0 0 0 0 0 0 NE 1 2 0 0 0 0 3 ENE 1 1 5 0 0 0 7 E 1 8 5 0 0 0 14 ESE 0 14 7 0 0 0 21 SE 1 7 9 2 0 0 19 SSE 0 6 1 1 0 0 8 S 0 4 2 2 0 0 8 SSW 0 5 4 2 1 0 12 SW 0 2 12 3 0 0 17 WSW 0 6 17 3 1 0 27 W 1 9 9 8 1 0 28 WNW 1 12 12 6 3 0 34 NW 0 5 12 2 0 0 19 NNW 0 1 0 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 6 83 95 29 6 0 219 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-7

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Extremely Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

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

NNE 0 0 0 0 0 0 0

NE _ 0 0 0 0 0 0 0

ENE 1 0 0 0 0 1 0

E 1 2 0 0 0 3 0

ESE 2 3 0 0 0 5 SE 0 3 5 0 0 0 8 SSE 0 5 3 0 0 0 8 S 0 10 28 0 0 0 38 SSW 0 5 21 1 0 0 27 SW 0 6 20 0 0 0 26 WSW 0 5 6 0 0 0 11 W 0 14 10 3 0 0 27 0 9 2 0 0 0 11 NW 0 3 2 0 0 0 5 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 64 102 4 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-8

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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

NE 0 0 0 0 0 0

ENE 0 0 0 0 0 0

E o a 0 0 0 0

ESE 0 0 0 0 0 0

SE 0 0 0 0 0 0

SSE 0 0 0 0 0 0

S 0 0 0 0 0 0

0 SSW 0 0 0 0 0 0

SW 0 1 0 0 1 0

WSW 0 0 0 0 0 0

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 o o 0 0 0 Total 0 0 1 0 0 1 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 11-9

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

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

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 3 ENE 0 0 E 0 0 ESE 0 0 SE 0 0 SSE 0 0 S 0 1 SSW 0 0 SW 2 3 WSW 2 2 W 0 0 0 0 NW 1 1 0 0 Variable 0 0 Total 5 10 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 il

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 9 37 30 26 107 NNE 0 4 29 10 28 3 74 NE 0 1 8 25 16 65 115 ENE 1 3 11 8 5 21 49 E 0 3 6 8 6 0 23 ESE 0 2 3 2 2 0 9 SE 1 7 4 1 2 1 16 SSE 0 8 13 5 3 7 336 S 1 11 21 13 13 4 63 SSW 1 1 9 13 10 5 39 SW 0 8 18 35 32 19 112 WSW 1 3 6 13 17 19 59 W 0 6 12 17 11 13 59 WNW 2 10 24 34 39 59 168 NW 1 8 33 49 52 33 176 NNW 0 11 40 54 45 8 158 Variable 0 0 0 0 0 0 0 Total 8 91 246 324 311 283 1263 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 cla sses: 2 1-12

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 12 0 0 18 NNE 3 4 1 0 12 NE 4 3 7 1 18 ENE 4 1 3 0 12 E 4 3 2 5 19 ESE 10 9 1 5 32 SE 6 11 7 0 27 SSE 7 10 8 5 32 S 4 4 6 16 31 SSW 7 7 9 29 54 SW 3 9 17 25 54 WSW 4 3 9 19 36 W 5 1 9 23 41 WNW 3 10 13 53 82 NW 14 18 25 18 76 NNW 5 11 4 5 32 Variable 0 0 0 0 0 Total 7 42 86 116 121 204 576 Hours of calm in this stability class: -0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 11-13

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 0 0 0 1 NNE 0 0 0 0 0 0 0 NE 0 1 0 0 0 0 1 ENE 0 0 0 0 2 1 3 E 0 1 3 2 2 0 8 ESE 0 0 0 2 2 2 6 SE 0 0 2 3 4 4 13 SSE 0 0 2 3 7 8 20 S 0 0 3 6 2 2 13 SSW 0 2 0 5 6 10 23 SW 0 0 0 4 4 10 18 WSW 0 1 2 8 3 8 22 W 0 0 8 7 7 12 34 WNW 0 0 2 2 11 13 28 NW 0 2 2 15 4 3 26 NNW 0 0 1 6 1 0 8 Variable 0 0 0 0 0 0 0 Total 0 7 26 63 55 73 224 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 2 1I-14

LaSalle Nuclear Station Period of Record: January - March 2003 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 NNE 0 0 0 NE 0 0 0 ENE 0 0 0 E 0 0 0 ESE 0 0 1 SE 0 0 1 SSE .0 0 2 S 0 4 9 SSW 0 9 21 SW 1 11 24 WSW 0 1 11 W 0 0 2 WNW 0 2 5 NW 0 0 1 NNW 0 0 2 Variable 0 0 0 Total 1 4 5 15 27 27 79 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: 2 H-15

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

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

NNE 0 8 2 0 0 10 0

NE 0 2 3 1 0 6 0

ENE 0 2 0 1 0 3

_ 0 E 0 0 0 1 0 1 0

ESE 0 0 0 0 0 0 0

SE 0 0 0 0 0 0 0

SSE 0 0 0 0 0 0 0

S 0 0 2 0 0 2 SSW 0 0 13 4 3 20 SW 0 0 9 7 1 17 WSW 0 0 4 2 0 6 W 0 1 2 2 0 5 WNW 0 0 0 4 1 5 NW 0 1 0 0 0 1 0 1 0 0 0 1 Variable 0 0 0 0 0 0 Total 0 16 36 22 5 79 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 1-16

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 2 3 0 0 7 NNE 0 0 7 2 0 0 9 NE 0 0 17 1 1 0 19 ENE 0 0 6 3 1 0 10 E 0 0 1 0 3 0 4 ESE 0 0 0 0 0 0 0 SE 0 0 1 0 1 0 2 SSE 0 0 4 1 0 0 5 S 0 0 1 4 0 0 5 SSW 0 0 4 9 3 0 16 SW 0 1 0 1 3 0 5 WSW 0 0 3 1 11 0 15 W 0 0 4 0 0 0 4 0 0 0 3 0 3 6 0 0 0 0 0 0 0 0 0 2 5 2 0 9 Variable 0 0 0 0 0 0 0 Total 0 3 52 33 25 3 116 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-17

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Slightly Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 8 5 16 NNE 7 8 16 NE 12 13 27 ENE 4 9 17 E 2 2 10 ESE 3 1 4 SE 2 2 6 SSE 0 2 7 S 0 1 5 SSW 0 6 16 SW 1 1 8 WSW 1 2 8 W 0 5 9 WNW 1 2 9 NW 1 7 16 NNW 1 8 17 Variable 0 0 0 Total 1 43 74 43 24 6 191 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 H-18

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Neutral - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 27 37 5 0 0 72 NNE 2 34 73 5 0 0 114 NE 1 34 46 34 5 0 120 ENE 1 26 33 54 13 10 137 E 1 7 17 19 15 1 60 ESE 0 3 6 7 6 1 23 SE 1 2 11 12 3 2 31 SSE 2 6 7 6 0 0 21 S 2 4 11 11 5 0 33 SSW 1 3 8 3 3 1 19 SW 0 4 5 10 6 1 26 WSW 1 2 10 10 6 8 37 W 0 5 17 10 7 7 46 WNW 1 5 11 11 15 0 43 NW 0 7 11 14 2 0 34 NNW 2 12 25 12 5 0 56 Variable 0 0 0 0 0 0 0 Total 18 181 328 223 91 31 872 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 1-19

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 39 11 2 0 53 NNE 37 25 1 0 63 NE 10 40 8 0 58 ENE 2 31 23 0 57 E 17 43 14 0 75 ESE 5 9 0 0 16 SE 0 3 4 0 9 SSE 5 4 7 0 17 S 5 7 7 1 26 SSW 6 6 9 3 30 SW 7 21 6 0 37 WSW 4 14 4 1 24 W 5 5 4 4 19 WNW 2 2 1 4 15 NW 3 7 2 0 12 NNW 7 10 2 0 19 Variable 0 0 0 0 0 Total 7 1 54 238 94 24 13 530 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-20

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Moderately Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 10 1 0 0 0 12 NNE 0 16 0 0 0 0 16 NE 2 0 0 0 0 0 2 ENE 1 1 0 0 0 0 2 E 1 8 23 0 0 0 32 ESE 0 10 4 1 0 0 15 SE 0 6 2 0 0 9 SSE 0 7 3 1 0 0 11 S 1 4 17 4 0 0 26 SSW 0 2 7 4 4 0 17 SW 0 5 6 14 0 0 25 WSW 2 5 6 0 0 0 13 W 2 4 1 0 0 0 7 WNW 1 3 3 2 0 0 9 NW 0 7 1 0 0 0 8 NNW 0 7 1 0 0 0 8 Variable 0 0 0 0 0O 0 0 Total 11 95 75 27 4 0 212 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 1-21

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Extremely Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet -

Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 0 0 0 0 3 NNE 0 2 0 0 0 0 2 NE 0 0 0 0 0 0 0 ENE 0 1 0 0 0 0 1 E 0 2 1 0 0 0 3 ESE 1 9 2 0 0 0 12 SE 1 7 5 0 13 SSE 0 14 11 0 25 S 1 10 9 0 21 SSW 0 12 7 0 19 SW 1 15 15 0 33 WSW 1 4 14 0 19 W 0 10 6 0 -16 WNW 1 6 4 0 11 NW 0 2 1 0 3 NNW 0 1 0 0 1 Variable 0 0 0 0 0 Total 6 98 75 0 182 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 H-22

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

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

NNE 0 0 0

NE 0 0 0

ENE 0 0 0

E 0 0 0

ESE 0 0 0

SE 0 0 0

SSE 0 0 0 0

S 0 0 0

SSW 0 0 0

SW 0 0 0

WSW 0 0 0

W 0 0 0

0 0 NW 0 0 0 NNW 0 0 0 Variable 0 0 0 Total 0 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 11-23

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

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

NNE 0 1 0 1 0

NE 0 0 0 0 0

ENE 0 0 0 0 0

E 0 0 0 0 0

ESE 0 0 0 0 0

SE 0 0 0 0 0

SSE 0 0 0 0 0

S 0 0 0 0 0

SSW 0 0 3 5 0

SW 0 0 2 3 0

WSW 0 2 0 2 0

W 0 0 0 0 0

0 0 0 0 0

NW 0 0 0 0 0

0 0 0 0 0

Variable 0 0 0 0 Total 0 0 0 3 3 5 11 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 H-24

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 1 0 2 NNE 0 0 2 6 0 0 8 NE 0 0 2 3 5 0 10 ENE 0 0 0 2 0 0 2 E 0 0 0 0 0 1 1 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 4 8 2 14 SW 0 0 0 2 4 5 11 WSW 0 0 0 1 2 1 4 W 0 0 0 1 0 4 5 WNW 0 0 0 1 2 0 3 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 1 0 1 Variable 0 0 0 0 0 0 0 Total 0 0 4 21 23 13 61 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1 11-25

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 12 27 24 15 3 81 NNE 3 10 27 59 7 0 106 NE 0 20 47 76 34 7 184 ENE 3 19 46 62 51 25 206 E 0 8 12 24 24 15 83 ESE 1 6 6 16 4 13 46 SE 1 4 8 11 9 10 43 SSE 2 4 7 17 2 0 32 S 2 4 7 14 7 4 38 SSW 0 0 7 17 15 20 59 SW 2 1 5 11 10 17. 46 WSW 0 1 6 13 13 17 50 W 0 3 14 11 16 22 66 WNW 1 1 12 9 7 13 43 NW 1 5 18 22 20 21 87 NNW 0 7 22 17 6 9 61 Variable 0 0 0 0 0 0 0 Total 16 105 271 403 240 196 1231 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 25 Hours of missing stability measurements in all stability classes: 1 11-26

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 7 6 3 17 NNE 1 2 8 32 3 1 47 NE 0 2 23 34 28 2 89 ENE 0 2 13 36 11 1 63 E 0 5 12 17 15 4 53 ESE 1 2 3 8 10 1 25 SE 0 0 3 4 4 1 12 SSE 1 2 0 1 1 3 8 S 0 1 1 4 3 14 23 SSW 2 2 1 4 10 20 39 SW 0 2 5 8 8 19 42 WSW 0 3 5 4 14 3 29 W 0 0 2 4 9 5 20 WNW 0 0 2 5 6 12 25 NW 0 2 5 7 1 5 20 NNW 0 1 4 1 1 3 10 Variable 0 0 0 0 0 0 0 Total 5 26 88 176 130 97 522 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: 1 H-27

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 3 2 1 0 6 NNE 1 1 6 1 0 9 NE 1 1 2 1 1 7 ENE 0 1 3 2 0 6 E 2 2 1 2 3 10 ESE 2 3 11 5 2 24 SE 0 3 12 3 2 20 SSE 1 2 2 2 2 9 S 10 3 2 6 3 14 SSW 1 2 2 6 19 30 SW 0 3 11 3 19 36 WSW 0 2 5 2 5 15 W 1 5 2 2 0 10 WNW 1 0 1 6 0 8 raW 0 0 5 13 3 21 NNW 2 2 1 0 0 6 Variable 0 0 0 0 0 0 Total 4 12 33 68 55 59 231 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 1.

H-28

LaSalle Nuclear Station Period of Record: April - June 2003 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 4 0 2 6 SSE 0 1 0 3 1 3 -8 S 0 1 0 4 2 3 10 SSW 0 0 2 4 6 15 27 SW 0 0 0 2 6 10 18 WSW 0 0 2 5 3 2 12 W 0 2 3 1 2 0 8 WNW 0 1 1 2 S 0 9 NW 1 0 0 0 1 0 2 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 1 5 8 25 26 35 100 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: 1 11-29

LaSalle Nuclear Station Period of Record: July - September 2003 Stability (Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

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

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 7 NNE 0 0 1 NE 0 0 8 ENE 0 0 7 E 0 0 3 ESE 0 0 4 SE 0 0 1 SSE 0 0 5 S 0 0 4 SSW 0 0 8 SW 0 0 17 WSW 0 0 7 4 0 0 11 W 0 1 6 12 2 0 21 0 0 8 6 I 0 15 NW 0 1 1 2 0 0 4 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 0 5 69 40 3 0 117 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 I1-31

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Slightly Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 7 6 0 0 0 13 NNE 0 3 4 0 0 0 7 NE 0 3 5 1 0 0 9 ENE 0 4 5 0 0 0 9 E 0 2 5 0 0 0 7 ESE 0 5 1 0 0 0 6 SE 0 3 6 1 0 0 10 SSE 0 2 13 1 0 0 16 S 0 6 4 3 0 0 13 SSW 0 2 6 6 0 0 14 SW 0 2 5 2 0 0 9 WSW 0 1 8 4 0 0 13 W 0 4 8 8 1 0 21 WNW 0 7 18 6 0 0 31 NW 0 3 6 2 0 0 11 NNW 0 8 8 0 0 0 16 Variable 0 0 0 0 0 0 0 Total 0 62 108 34 1 0 205 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-32

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Neutral - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 20 22 0 0 0 42 NNE 6 29 11 0 0 0 46 NE 1 22 28 14 0 0 65 ENE 3 12 21 21 0 0 57 E 1 16 19 0 0 0 36 ESE 2 11 11 1 0 0 25 SE 3 11 13 5 0 0 32 SSE 2 14 8 2 0 0 26 S 1 11 15 4 0 0 31 SSW 0 8 14 8 0 0 30 SW 5 12 10 14 0 0 41 WSW 4 12 16 9 0 0 41 W 2 13 17 11 4 0 47 WNW 1 9 14 19 2 0 45 NW 1 10 13 10 2 0 36 NNW 2 10 10 7 1 0 30 Variable 0 0 0 0 0 0 0 Total 34 220 242 125 9 0 630 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-33

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 32 10 0 0 44 NNE 3 26 11 0 0 40 NE 2 10 26 0 0 38 ENE 0 6 26 6 0 38 E 0 10 17 2 0 29 ESE 1 9 2 0 0 12 SE 2 9 8 0 0 19 SSE 2 11 6 0 0 19 S 2 10 14 6 0 32 SSW 3 8 22 7 0 41 SW 3 16 29 4 0 52 WSW 4 15 16 5 0 41 W 3 19 18 1 0 41 WNW 2 16 18 2 0 41 NW 0 9 12 1 0 22 NNW 0 8 15 0 0 23 Variable 0 0 0 0 0 0 Total 29 214 250 34 0 532 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-34

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Moderately Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 7 0 0 9 NNE 1 9 0 0 10 NE 0 1 0 0 1 ENE 2 2 3 0 7 E 0 16 19 0 35 ESE 1 13 5 0 19 SE 2 15 2 0 19 SSE 0 10 3 0 13 S 2 19 9 0 30 SSW 2 17 13 0 32 SW 3 24 10 0 37 WSW 1 11 14 0 26 W 4 29 9 0 43 WNW 1 24 2 0 28 NW 2 3 1 0 6 NNW 0 4 1 0 5 Variable 0 0 0 0 0 Total 23 204 91 0 320 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-35

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Extremely Stable* - 200Ft-33Ft Delta-T (F)

Winds Measured at* 33 Feet Wind Spee!d (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 0 0 5 NNE 0 0 0 0 0 NE 0 0 0 0 0 ENE 1 0 0 0 1 E 1 7 1 0 9 ESE 2 26 3 0 31 SE 0 40 1 0 41 SSE 0 45 10 0 55 S 2 43 10 0 55 SSW 3 31 8 0 42 SW 0 31 12 0 43 WSW 1 24 13 0 38 W 3 30 3 0 36 WNW 1 10 0 0 11 NW 0 3 0 0 3 NNW 0 1 0 0 1 Variable 0 0 0 0 0 Total 14 296 61 0 371 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-36

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 0 SE 0 0 SSE 0 0 S 0 0 SSW 0 0 SW 0 0 WSW 0 0 W 0 0 WNW 0 0 NW 0 0 NNW 0 0 Variable 0 0 Total 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 1I-37

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 Total 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 I1-38

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 1 NE 0 0 0 0 ENE 0 0* 0 1 E 0 0 0 0 ESE 0 0 0 SE 0 0 0 SSE 2 0 2 S 1 0 1 SSW 1 0 3 SW 2 0 5 WSW 0 0 0 W 0 0 1 0 0 0 NW 0 0 2 NNW 0 0 0 Variable 0 0 0 Total 6 0 16 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 1I-39

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 16 28 18 1 0 64 NNE 0 12 31 19 0 0 62 NE 2 16 20 44 16 0 98 ENE 2 16 16 41 22 0 97 E 2 10 22 14 1 0 49 ESE 0 9 24 1 2 0 36 SE 1 8 8 13 5 0 35 SSE 2 18 18 20 5 0 63 S 1 9 14 15 5 3 47 SSW 0 8 13 16 17 5 59 SW 2 9 8 21 22 5 67 WSW 1 9 8 19 15 2 54 W 1 7 19 30 22 4 83 WNW 1 5 29 26 25 6 92 NW 1 17 13 22 17 3 73 NNW 1 9 15 6 6 1 38 Variable 0 0 0 0 0 0 0 Total 18 178 286 325 181 29 1017 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 11-40

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 3 5 10 1 22 NNE 3 9 28 5 0 46 NE 3 7 18 4 0 32 ENE 3 13 24 10 1 51 E 6 11 9 7 0 34 ESE 2 6 8 0 0 16 SE 7 5 4 1 1 18 SSE 6 4 3 5 3 21 S 5 3 14 13 4 39 SSW 3 4 10 9 17 44 SW 5 7 17 16 16 62 WSW 6 15 15 10 5 51 W 5 9 10 11 6 41 WNW 5 7 19 16 7 54 NW 4 5 17 13 3 43 NNW 4 7 7 10 3 32 Variable 0 0 0 0 0 0 Total 6 70 115 208 140 67 606 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 H-41

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 2 1 3 0 0 7 NNE 0 3 5 1 0 0 9 NE 1 2. 4 7 0 0 14 ENE 0 0 0 6 4 0 10 E 0 5 2 7 5 2 21 ESE 0 1 8 4 4 3 20 SE 0 0 3 9 7 5 24 SSE 0 0 10 10 3 5 28 S 0 3 12 13 7 4 39 SSW 0 1 1 8 7 14 31 SW 1 4 4 7 14 12 42 WSW 0 7 7 5 5 7 31 W 0 5 3 13 7 3 31 WNW 0 2 10 15 15 0 42 NW 0 3 4 9 6 0 23 NNW 0 4 4 4 2 0 14 Variable 0 0 0 0 0 0 0 Total 3 42 79 121 86 55 386 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 2 11-42

LaSalle Nuclear Station Period of Record: July - September 2003 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 NNE 0 0 0 1 NE 0 10 0 0 ENE 0 0 0 0 E 0 0 0 0 ESE 1 2 4 7 SE 2 2 0 4 SSE 13 14 8 39 S 4 17 13 38 SSW 9 10 7 29 SW 10 7 3 24 WSW 2 3 3 16 W 2 4 1 13 WNW 5 0 0 7 NW 0 0 0 1 NNW 0 0 0 2 Variable 0 0 0 0 Total 1 10 24 48 59 39 181 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 11-43

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Extremely Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

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

N 0 0 0 NNE 0 0 0 NE 0 0 0 ENE 0 0 0 E 0 0 0 ESE 0 0 0 SE 0 0 0 SSE 0 0 0 S 1 0 0 SSW 0 0 0 SW 0 0 0 WSW 0 0 0 W 1 0 0 2

0 0 NW 0 0 0 NNW 0 0

Variable 0 0 0

Total 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: 0 II-44

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Moderately Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 7 15 2 32 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-45

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Slightly Unstable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 5 0

NNE 0 0 0

NE 0 3 0

ENE 0 1 0

E 0 4 0

ESE 0 3 0

SE 0 0 6 0

SSE 0 0 0

S 0 8 0

SSW 1 5 0

SW 1 10 0

WSW 0 6 W 0 0 3 4 1 2 10 WNW 0 0 6 11 2 1 20 NW 0 0 I 2 1 0 4 NNW 0 2 1 0 0 4 Variable 0 0 0 0 0 0 0 Total 0 5 41 28 10 5 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: 0 1I-46

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Neutral - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 23 17 2 0 0 42 NNE 8 7 3 0 0 18 NE 5 7 8 1 0 21 ENE 7 6 5 0 0 19 E 2 21 12 2 0 37 ESE 12 11 3 0 0 27 SE 6 10 3 0 0 20 SSE 2 9 13 7 1 32 S 1 12 12 4 1 31 SSW 1 20 20 20 0 62 SW 3 12 22 2 3 46 WSW 13 14 10 2 2 42 W 18 28 25 29 12 113 WNW 14 27 34 30 3 109 NW 12 28 43 12 0 96 NNW 17 39 28 12 1 98 Variable 0 0 0 0 0 0 Total 14 144 268 243 121 23 813 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 clas;ses: 0 11-47

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Slightly Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 14 17 0 0 34 NNE 2 9 9 1 0 0 21 NE 0 3 8 4 0 0 15 ENE 1 8 22 1 0 0 32 E 0 11 36 13 0 0 60 ESE 0 14 12 4 0 0 30 SE 1 14 13 6 1 0 35 SSE 2 15 21 17 11 2 68 S 0 1 26 20 20 2 69 SSW 2 8 17 41 22 5 95 SW 3 7 16 15 2 0 43 WSW 4 10 18 10 2 1 45 W 2 10 14 4 1 2 33 WNW 1 10 31 13 15 6 76 NW 2 13 34 3 0 0 52 NNW 1 6 13 1 5 1 27 Variable 0 0 0 0 0 0 0 Total 23 153 307 154. 79 19 735 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 1I-48

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Moderately Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 6 1 0 0 7 NNE 1 3 1 0 5 NE 1 0 0 0 1 ENE 1 2 0 0 3 E 13 22 2 0 38 ESE 13 9 4 0 26 SE 6 9 3 0 18 SSE 2 9 2 0 14 S 2 6 5 0 14 SSW 9 4 6 0 19 SW 8 19 18 0 45 WSW 14 13 3 0 30 W 13 13 3 0 31 WNW 12 20 2 0 35 NW 0 7 0 0 7 NNW 7 0 1 0 8 Variable 0 0 0 0 0 Total 4 108 137 50 0 301 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 1I-49

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Extremely Stable - 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 6 0 0 6 NNE 0 0 0 0 NE 0 0 0 0 ENE 1 0 0 1 E 5 5 0 10 ESE 13 S 0 18 SE 22 7 0 29 SSE 24 2 0 26 S 5 7 0 12 SSW 6 14 0 22 SW 13 22 0 35 WSW S 15 0 23 W 16 18 0 34 WNW 6 1 0 7 NW 2 0 0 2 NNW 2 0 0 2 Variable 0 0 0 0 Total 0 127 96 0 227 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

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Extremely Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

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

N 0 0 0 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E

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

_ _ _ 0

_ 0 S

0 0 0 0 0 0 00 SSW 0 0 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W

0 0 0 0 0 0 0 NNN 0 0 0 0 0 0 0 NN 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 Total 0 0 0 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 1I-51

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Moderately Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

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

NNE 0 0 0

NE 0 0 0

ENE 0 0 0

E 0 0 0

ESE 0 0 0

SE 0 0 0

SSE 0 0 0

S 0 0 0

SSW 0 0 0

SW 0 0 0

WSW 0 0 0

W 0 1 WNW 0 0 1 NW 0 0 0 NNW 0 0 0 Variable 0 0 0 Total 0 1 1 2 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: 4 II-52

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Slightly Unstable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 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 1 W 1 WNW 0 NW 0 NNW 0 Variable 0 Total 2 1 9 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 11-53

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Neutral - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 8 25 9 2 0 44 NNE 9 4 6 6 0 25 NE 6 7 12 14 2 41 ENE 5 11 14 7 0 37 E 0 13 29 11 7 60 ESE 6 10 15 6 3 40 SE 1 13 5 5 6 31 SSE 4 17 13 16 12 62 S 1 9 28 12 10 61 SSW 0 11 24 21 33 89 SW 4 9 19 13 19 66 WSW 5 8 14 19 11 57 W 10 16 24 14 44 109 WNW 12 23 33 25 35 129 NW 6 31 47 58 52 194 NNW 11 24 18 7 8 68 Variable 0 0 0 0 0 0 Total 6 88 231 310 236 242 1113 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: 4

- I-54

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Slightly Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 7 10 11 0 32 NNE 0 3 4 16 7 0 30 NE 0 1 6 3 1 1 12 ENE 1 0 3 8 5 0 17 E 2 4 5 7 15 2 35 ESE 0 5 10 6 15 2 38 SE 1 1 3 6 9 6 26 SSE 0 3 7 4 11 18 43 S 0 1 3 5 18 37 64 SSW 0 1 2 2 12 79 96 SW 1 2 8 7 9 20 47 WSW 1 3 5 11 8 7 35 W 0 4 12 16 18 9 59 WNW 0 6 4 11 15 25 61 NW 1 2 7 11 27 14 62 NNW 1 4 2 10 11 0 28 Variable 0 0 0 0 0 0 0 Total 8 44 88 133 192 220 685 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: 4 11-55

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Moderately Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 2 6 0 8 NNE 0 0 8 4 0 0 12 NE 0 0 1 4 1 0 6 ENE 0 0 0 0 0 0 0 E 1 0 3 2 0 6 ESE 0 4 4 5 3 16 SE 1 3 10 6 5 25 SSE 0 0 3 6 5 14 S 1 1 0 2 9 13 SSW 0 2 0 2 7 11 SW 1 2 7 5 20 35 WSW 0 1 0 4 11 16 W 1 6 3 10 7 27 WNW 2 2 6 18 7 35 NW 1 1 3 8 7 20 NNW 0 1 1 2 0 4 Variable 0 0 0 0 0 0 Total 8 32 50 77 81 248 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: 4 11-56

LaSalle Nuclear Station Period of Record: October - December 2003 Stability Class - Extremely Stable - 375Ft-33Ft Delta-T (F)

Winds Measured at 375 Feet Wind Speed (in mph)

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

N 0 0 0 0 0 0 0 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 1 2 3 SE 0 0 0 2 2 2 6 SSE 0 0 0 3 6 4 13 S 0 0 1 10 15 10 36 SSW 0 0 0 2 5 7 14 SW 0 0 1 8 6 11 26 WSW 0 0 4 4 5 5 18 W 0 2 1 0 2 1 6 WNW 0 0 0 2 14 4 20 NW 0 0 1 0 2 0 3 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 2 8 31 58 46 145 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 II-57

LASALLE APPENDIX Em 2003 REMP SAMPLE RESULTS m-l

LASALLE TABLE OF CONTENTS 111-3 List of Tables ....................... 111-4

1.0 INTRODUCTION

......................... 111-5 SAMPLES .......................

2.0 LISTING OF MISSED 11.-6 ANOMALIES .1.......................................

3.0 LISTING OF SAMPLE 1II-7 TABLES...........................................

4.0 2003 ANALYSES DATA 111-32 5.0 LAND USE CENSUS....................................................... III-36 6.0 TLD DATA.........................................................

TRENDS...............................................111-40 7.0 GRAPHS OF DATA 1II-2

LASALLE LIST OF TABLES No. Title Page 1 Airborne Particulates and Iodine-131 .. ................................. III-8 2 Airborne Particulates, Quarterly Composites ................................. III-13 3 Milk.....................................................................III-16 4 Fish, Edible Portions ...................................III-19 5 Bottom Sediments ................................. 111-22 6 Vegetables .................................. 111-23 7 Surface Water ................................. III-26 8 Well Water ................................. III-31 III-3

LASALLE

1.0 INTRODUCTION

The following constitutes the 2003 Progress Report for the Radiological Environmental Monitoring Program conducted at the LaSalle County Station, Marseilles, 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 2003.

Location Collection Sample Type CdDaeComments Code Date 111-4

2.0 LISTING OF MISSED SAMPLES LocationExpected Sample Type Code Collection Reason C Date None for 2003.

III-5

LASALLE 3.0 LISTING OF SAMPLE ANOMALIES Sample Type Location Collection Reason Code Date A L-03 01-09-03 No apparent reason for low reading of 153.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />.

A L-06 05-01-03 No apparent reason for low meter reading of 139.7 hrs.

A L-06 05-15-03 Low reading of 45.1 hrs. due to blown fuse. Collector replaced fuse.

A/I L-03 07-17-03 Low reading of 114.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> due to power outage possibly caused by lightning. Collector removed pump for annual maintenance; will return and field check new pump after electric is restored. Station Point of Contact notified.

A L-03 07-24-03 Low reading of 57.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> due to recent power restoration.

A L-05 07-24-03 No apparent reason for low reading of 88.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />.

A/I L-03 07-31-03 Low reading of 147.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> due to pump malfunction.

Collector replaced pump.

A L-05 08-06-03 No apparent reason for low reading of 122.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

WW L-27 10-09-03 Collector denied access to location; will check back next week.

WW L-27 10-16-03 Collector denied access to location; will check back next week. Sample collected on 10-23-03.

III-6

LASALLE 4.0 2003 ANALYSES DATA TABLES m1I-7

LASALLE Table 1. Airborne Particulates and Iodine Cartridges Collection: Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLDs: Gross Beta = 0.01, I-131 = 0.07 pCi/r 3 2

Units: 10 pCi/m' L-01 Nearsite No. 1 Date Volume Gross Date Volume Gross Collected (i 3

) Beta I-13 1 Collected (in') Beta I-131' 01-02-03 280 4.1+0.4;0.8 0.0+/-0.3;0.3 07-03-03 303 2.6 +/- 0.3; 0.6 -0.1 +/- 0.4;0.4 01-09-03 288 2.8 + 0.3; 0.6 - 07-10-03 278 2.0 0.4; 0.5 01-16-03 280 2.1 +0.4;0.5 0.5+0.4;0.4 07-17-03 284 1.8 0.3; 0.5 1.1 + 0.3 ;0.4 01-23-03 288 3.1 +/-0.4;0.7 - 07-24-03 287 1.8 +/-0.3;0.4 01-30-03 284 3.5 + 0.4; 0.7 0.7+/-0.4;0.4 07-31-03 279 2.3 +/-0.3; 0.5 0.0+/-0.3 ;0.3 02-06-03 284 3.2 4 0.4; 0.7 08-06-03 255 2.6 +/- 0.4; 0.6 02-13-03 284 2.1 +0.4;0.5 0.5+/-0.4;0.4 08-13-03 285 1.4 +/-0.3 ;0.4 0.7+/- 0.3 ;0.4 02-20-03 285 2.1 4 0.4 ;0.5 - 08-21-03 316 3.6 0.4; 0.8 02-27-03 282 2.7 + 0.3; 0.6 0.4 + 0.4 ;0.4 08-28-03 282 3.6 +/-0.4 ;0.7 -0.7+/-0.3 ;0.4 03-06-03 290 3.1 + 0.4 ; 0.7 - 09-04-03 290 1.8 +/-0.3 0.4 03-13-03 284 3.6 + 0.4; 0.8 0.0 + 0.4 ;0.4 09-11-03 280 3.9 0.4; 0.8 -0.0+/- 0.3 ;0.3 03-20-03 289 2.7 +/- 0.4; 0.6 - 09-18-03 283 3.4 0.4; 0.7 03-27-03 285 2.1 + 0.4 ;0.5 -0.1 + 0.4 ;0.4 09-25-03 288 3.0 0.4; 0.7 0.6 +/- 0.3 ;0.4 1st Qtr. Meanrs.d. 2.9+0.7 0.3+/-0.3 3rd Qtr. Mean+/-s.d. 2.6+/-0.8 0.2+/- 0.6 04-03-03 284 1.9 +/- 0.4; 0.5 10-02-03 285 1.6 +/-0.3 ;0.4 04-10-03 280 1.6 +/-0.3; 0.4 0.7+/-0.4;0.4 10-09-03 278 2.8 +/-0.4; 0.6 0.1 +/- 0.3 ;0.3 04-17-03 283 2.6 +/- 0.3; 0.6 - 10-16-03 291 3.0+/-0.4;0.7 -

04-24-03 285 2.0 +/- 0.3; 0.5 -0.0+ 0.4 ;0.4 10-23-03 288 2.9 +/- 0.4; 0.6 0.0+/- 0.3 ;0.3 05-01-03 283 2.2 +/-0.4; 0.5 - 10-30-03 284 2.0 +/- 0.3; 0.5 -

05-08-03 285 1.6 +0.3 ;0.4 0.7+ 0.3 ;0.3 11-06-03 284 2.1 +/-0.4;0.5 0.4+/-0.3;0.3 05-15-03 283 1.5 +/- 0.3; 0.4 - 11-13-03 278 3.4 +/- 0.4; 0.7 -

05-22-03 287 1.4 +/- 0.3; 0.4 0.2 +/- 0.4 ;0.4 11-20-03 285 2.0 +/- 0.3 ; 0.5 0.1 +/- 0.3 ;0.3 05-29-03 279 2.1 +/-0.4;0.5 - 11-26-03 247 2.0 +/- 0.4; 0.5 -

06-05-03 285 1.7 +/- 0.3; 0.4 -0.3 +/- 0.3 ;0.3 12-04-03 325 2.6 +/- 0.4; 0.6 -0.2 +/- 0.3 ;0.3 06-11-03 242 1.7 +/-0.4; 0.5 - 12-11-03 282 2.4 + 0.4; 0.6 -

06-19-03 326 2.0 +/- 0.3; 0.5 -0.3 + 0.4 ;0.4 12-18-03 285 2.8 +/- 0.4; 0.6 0.4 0.3 ;0.3 06-26-03 290 2.0 +/- 0.3; 0.5 - 12-24-03 245 2.9 +/- 0.4 ;0.7 -

2nd Qtr. Meanis.d. 1.9+/-0.3 0.2+/-0.5 12-3 1-03 291 2.8 +/- 0.4; 0.6 0.4+/- 0.4 ;0.4 4th Qtr. Mean+/-s.d. 2.5+/-0.5 0.2+/- 0.2

'Volume based on two week collection period.

III- 8

LASALLE Table 1. Airborne Particulates and Iodine Cartridges Collection: Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLDs: Gross Beta = 0.01, I-131 = 0.07 pCi/m3 Units: 10 2 pCi/rn?

L-03 Onsite No. 3 Date Volume Gross Date Volume Gross Collected (mi) Beta I-131' Collected (m') Beta I-131' 01-02-03 280 4.6 +/- 0.4; 0.9 -0.6+/- 0.5 ;0.5 07-03-03 288 2.6 +/- 0.3 ; 0.6 0.3 +/- 0.3 ;0.3 01-09-03 259b 3.2 +/- 0.4; 0.7 - 07-10-03 276 2.4 +/- 0.4; 0.6 01-16-03 280 2.6 +/- 0.4; 0.6 -0. 1 +/- 0.3 ;0.3 07-17-03 195' 1.5 +/- 0.4; 0.5 0.1+/-0.3 ;0.3 01-23-03 288 3.1 +/-0.4;0.7 - 07-24-03 98. 2.4 +/- 0.8; 0.9 01-30-03 284 3.4 +/- 0.4; 0.7 0.4+/- 0.5 ;0.5 07-31-03 250' 2.6 +/- 0.4; 0.6 0.1 +/- 0.5;0.5 02-06-03 285 3.4 A 0.4; 0.7 08-06-03 257 2.6 +/- 0.4; 0.6 02-13-03 284 2.0 +/- 0.4; 0.5 0.5 +/- 0.4 ;0.4 08-13-03 284 1.8 +/- 0.4; 0.5 -0.3 + 0.4 ;0.4 02-20-03 280 1.9 +/- 0.4; 0.5 - 08-21-03 314 3.4+/-0.4;0.7 02-27-03 282 3.0 +/- 0.4; 0.6 0.6 +/- 0.3 ;0.3 08-28-03 283 2.8 +/- 0.3; 0.6 1.1 +/-0.3 ;0.4 03-06-03 294 2.9 +/- 0.4; 0.7 - 09-04-03 290 1.9 +/- 0.3 0.5 03-13-03 284 3.6 +/- 0.4; 0.8 0.2 +/- 0.3 ;0.3 09-11-03 279 4.2 +/- 0.5; 0.9 -0.5+/-0.3 ;0.4 03-20-03 284 2.4 +/- 0.4; 0.6 - 09-18-03 284 3.6+/-0.4;0.8 03-27-03 285 2.6 +/- 0.4; 0.6 0.4 4 0.4 ;0.4 09-25-03 289 2.5 +/- 0.4; 0.6 0.2+/- 0.3 ;0.3 Ist Qtr. Mean~s.d. 3.0+/-0.7 0.2+/-0.4 3rd Qtr. Mean+/-s.d. 2.6+/-0.7 0.1+/-0.5 04-03-03 289 1.8 +/- 0.4; 0.5 10-02-03 284 1.3 +/-0.3 ;0.4 04-10-03 280 1.7 4 0.3; 0.4 0.5+/- 0.4 ;0.4 10-09-03 283 2.9 +/- 0.4; 0.6 -1.0+/- 0.4 ;0.4 04-17-03 283 2.1 +/-0.3 ;0.5 - 10-16-03 285 3.0 +/- 0.4; 0.7 -

04-24-03 285 2.2 A 0.3; 0.5 -0.5 + 0.4 ;0.4 10-23-03 286 3.2 +/-0.4 ;0.7 -0.4+/-0.3 ;0.3 05-01-03 287 2.0 0.3; 0.5 - 10-30-03 287 1.7 +/- 0.3; 0.5 -

05-08-03 285 1.8 0.3 ;0.4 0.0 +/- 0.3 ;0.3 11-06-03 284 2.1 +/- 0.4; 0.5 -0.1 +/- 0.3 ;0.3 05-15-03 283 1.5+0.3;0.4 - 11-13-03 283 3.5 +/- 0.4; 0.7 -

05-22-03 285 1.4 + 0.3; 0.4 -0.2 4 0.4 ;0.4 11-20-03 280 2.0 +/- 0.3; 0.5 -0.5 +/- 0.3 ;0.3 05-29-03 285 1.8 +/- 0.3; 0.5 - 11-26-03 247 2.3 +/- 0.4; 0.6 -

06-05-03 285 1.7 4 0.3 0.4 -0.3 4 0.4 ;0.4 12-04-03 325 2.8 4 0.4; 0.6 -0.4 + 0.3 ;0.3 06-11-03 242 1.8 0.4; 0.5 - 12-11-03 282 1.9 +/- 0.4; 0.5 -

06-19-03 326 2.0 +/- 0.3; 0.5 -0.0+ 0.4 ;0.4 12-18-03 284 2.9 +/- 0.4; 0.7 -1.0+/-0.3;0.4 06-26-03 286 1.8 + 0.3; 0.5 - 12-24-03 246 3.6 + 0.4; 0.8 -

2nd Qtr. Meanms.d. 1.8+/-0.2 -0.1+/- 0.3 12-31-03 293 2.5 + 0.4; 0.6 -0.3 +/- 0.4; 0.4 4th Qtr. Mean+/-s.d. 2.6+0.7 -0.5+/- 0.4

' Volume based on two week collection period.

'Volume low; no apparent reason for low reading of 153.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />.

'Volume low; power outage possibly caused by lightning.

d Volume low; timer reading of 57.8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> due to recent power restoration.

'Volume low; timer reading of 147.7 due to pump malfunction. Collector replaced pump.

M1-9

LASALLE Table 1. Airborne Particulates and Iodine Cartridges Collection: Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLDs: Gross Beta = 0.01, I-131 = 0.07 pCi/mr 3

Units: 10 pCihm L-05 Onsite Station No. 5 Date Volume Gross Date Volume Gross Collected (in3) Beta I-131' Collected (n 3 ) Beta I-1313 01-02-03 286 4.7 +/- 0.4; 0.9 -0.1 +/-0.3 ;0.3 07-03-03 296 2.7 +/- 0.3; 0.6 1.0+/- 0.4;0.4 01-09-03 293 2.7 +/- 0.3 ;0.6 - 07-10-03 276 2.3+/-0.4;0.6 01-16-03 280 2.5 +/- 0.4; 0.6 -0.3 +/- 0.4 ;0.4 07-17-03 283 2.0 + 0.3; 0.5 0.5 + 0.3 ;0.3 01-23-03 287 3.2 +/- 0.4; 0.7 - 07-24-03 152b 3.8 +/- 0.6; 0.9 01-30-03 284 3.8 +/- 0.4; 0.8 0.6 +/- 0.4 ;0.4 07-31-03 282 2.9 +/- 0.3; 0.6 -0.5 +/- 0.4 ;0.5 02-06-03 287 3.6 +/- 0.4; 0.7 - 08-06-03 207' 3.4 + 0.5; 0.8 02-13-03 278 2.7 +/- 0.4; 0.6 -0.2 +/- 0.3 ;0.3 08-13-03 284 1.5 +/-0.4; 0.4 0.4+ 0.4 ;0.4 02-20-03 285 2.1 +/-0.4;0.5 - 08-21-03 312 3.7 0.4; 0.8 02-27-03 277 3.4 +/- 0.4 ;0.7 0.6 +/- 0.3 ;0.4 08-28-03 283 3.5 +/- 0.4; 0.7 0.7 +/- 0.4 ;0.4 03-06-03 286 3.6 +/- 0.4; 0.8 - 09-04-03 284 2.2 +/-0.3 ;0.5 03-13-03 287 3.6 +/- 0.4; 0.8 -0.3 +/- 0.4 ;0.4 09-11-03 285 4.3 +/-0.5 0.9 0.6+/- 0.3 ;0.4 03-20-03 283 2.6 +/- 0.4; 0.6 - 09-18-03 285 3.3+/-0.4;0.7 03-27-03 284 2.4 +/-0.4;0.6 0.2+/-0.3 ;0.3 09-25-03 289 3.2 +/- 0.4; 0.7 1.4+/- 0.3 ;0.4 lst Qtr. Mean+/-s.d. 3.1+/-0.7 0.1+/-0.4 3rd Qtr. Mean+/-s.d. 3.0+/-0.8 0.6+/- 0.6 04-03-03 285 2.4 i 0.4; 0.6 10-02-03 289 1.8 +/- 0.3; 0.4 04-10-03 282 2.0 0.3; 0.5 0.3 + 0.3 ;0.3 10-09-03 283 3.2 +/- 0.4; 0.7 0.4 +/- 0.3 ;0.3 04-17-03 284 2.5 +/- 0.3; 0.6 - 10-16-03 284 2.7 +/- 0.4; 0.6 -

04-24-03 285 2.1 +/- 0.3; 0.5 0.1 +/- 0.4 ;0.4 10-23-03 289 3.7+/-0.4;0.8 0.4+/-0.3;0.3 05-01-03 288 2.6 0.4; 0.6 - 10-30-03 284 2.0 + 0.3; 0.5 -

05-08-03 284 1.8 +/- 0.3 0.4 -0.2 +/- 0.4; 0.4 11-06-03 289 2.0 +/- 0.4 ; 0.5 0.4+/- 0.3;0.3 05-15-03 283 1.6 +/- 0.3; 0.4 - 11-13-03 285 3.9 +/- 0.4; 0.8 -

05-22-03 284 1.5 +/- 0.3; 0.4 0.5 +/- 0.4 ;0.4 11-20-03 285 2.1 +/-0.3;0.5 -0.4+/-0.3;0.3 05-29-03 284 2.0 +/- 0.4; 0.5 - 11-26-03 245 2.5 +/- 0.4; 0.6 -

06-05-03 287 1.9 +/- 0.3; 0.5 -0.5 +/- 0.4 ;0.4 i2-04-03 331 2.7 +/-0.4 ;0.6 0.8+/- 0.3 ;0.4 06-11-03 241 1.7 +/-0.4; 0.5 - 12-11-03 285 2.5 +/- 0.4; 0.6 -

06-19-03 326 1.9 +/- 0.3; 0.5 0.0+/- 0.4 ;0.4 12-18-03 284 2.9+/-0.4;0.7 0.2+/-0.3;0.3 06-26-03 290 2.5 +/- 0.4 ; 0.6 - 12-24-03 245 3.9 +/- 0.4; 0.8 -

2nd Qtr. Mean~s.d. 2.0+/-0.4 0.0+/- 0.4 12-31-03 292 3.0 +/- 0.4; 0.7 0.1 +/- 0.3;0.3 4th Qtr. Mean+/-s.d. 2.8+/-0.7 0.3+/-0.4

' Volume based on two week collection period.

'Volume low; no apparent reason for low timer reading of 88.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />.

'Volume low; no apparent reason for low timer reading of 122.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.

III- 10

LASALLE Table 1. Airborne Particulates and Iodine Cartridges Collection: Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLDs: Gross Beta = 0.01, I-131 = 0.07 pCihmn Units: 10 pcihmn L-06 Nearsite No. 6 Date Volume Gross Date Volume Gross Collected (mi) Beta I-131 Collected (m 3 ) Beta I-131' 01-02-03 280 4.2 +/- 0.4; 0.9 -0.0+/- 0.5;0.5 07-03-03 293 3.0 +/- 0.3; 0.6 1.1 +/- 0.4;0.4 01-09-03 288 2.8 +/- 0.3; 0.6 07-10-03 278 2.2 +/- 0.4; 0.5 -

01-16-03 280 2.5 +/- 0.4; 0.6 -0.0+/- 0.3 ;0.3 07-17-03 284 2.2 +/- 0.4; 0.5 0.8 +/- 0.3 ;0.4 01-23-03 288 2.9 +/- 0.4; 0.6 - 07-24-03 288 2.0 +/- 0.3; 0.5 -

01-30-03 285 3.4 +/- 0.4; 0.7 0.7 0.4 ;0.4 07-31-03 284 2.3 +/- 0.3 ;0.5 0.5+/-0.3 ;0.3 02-06-03 284 3.0 +/- 0.4; 0.6 - 08-06-03 255 2.6 +/- 0.4; 0.6 -

02-13-03 284 2.7 +/- 0.4; 0.6 -0.5 +/- 0.4 ;0.4 08-13-03 284 1.4 +/- 0.3; 0.4 -0.4+/- 0.4 ;0.4 02-20-03 285 1.8 +/- 0.3; 0.5 - 08-21-03 315 3.5 +/- 0.4; 0.7 -

02-27-03 282 2.8 +/-0.3 ;0.6 -0.0+/-0.3 ;0.3 08-28-03 283 3.9 +/- 0.4; 0.8 -0.3 +/- 0.4 ;0.4 03-06-03 289 3.2 +/- 0.4; 0.7 09-04-03 290 2.1 +/-0.3 ;0.5 -

03-13-03 284 3.9 +/- 0.4; 0.8 -0.2+/- 0.4;0.4 09-11-03 280 4.2 0.5; 0.9 -0.1 +/-0.3 ;0.3 03-20-03 284 2.6 + 0.4; 0.6 - 09-18-03 288 3.9 0.4; 0.8 -

03-27-03 285 2.3 +/- 0.4; 0.5 0.1 +/- 0.4 ;0.4 09-25-03 288 2.7 +/- 0.4; 0.6 -0.2 + 0.3; 0.3 Ist Qtr. Mean+/-s.d. 2.9+/-0.6 0.0+/-0.4 3rd Qtr. Mean+/-s.d. 2.8+/-0.9 0.2+/- 0.6 04-03-03 284 2.0 +/- 0.4; 0.5 10-02-03 283 1.6 +/-0.3 0.4 -

04-10-03 280 1.6 +/- 0.3 ;0.4 0.0+/- 0.4;0.4 10-09-03 284 3.5 +/-0.4; 0.7 -0.7 0.3 ;0.4 04-17-03 283 2.3 +/- 0.3; 0.5 10-16-03 286 2.9+/-0.4;0.6 -

04-24-03 285 2.0 +/- 0.3; 0.5 -0.5 +/- 0.4 ;0.4 10-23-03 288 3.1 +/-0.4;0.7 0.5+/-0.3;0.3 05-01-03 237b 2.7 +/- 0.4; 0.6 - 10-30-03 284 2.1 +/-0.4;0.5 -

05-08-03 285 1.8 +/- 0.3; 0.4 -0.3 +/- 0.4 ;0.4 11-06-03 284 2.2 +/- 0.4; 0.5 0.7 0.3 0.3 05-15-03 76.' 1.9+/-1.0;1.1 - 11-13-03 283 3.9 0.4; 0.8 -

05-22-03 287 1.5 +/- 0.3; 0.4 -0.9 +/- 0.6 ;0.7 11-20-03 285 2.3 +/- 0.3; 0.5 -0.7 0.3 ;0.4 05-29-03 284 2.1 +/-0.4;0.5 - 11-26-03 247 2.2 i0.4; 0.6 -

06-05-03 285 2.2 +/- 0.3 0.5 0.3 +/- 0.4 ;0.4 12-04-03 325 2.7 +/- 0.4; 0.6 -0.8 +/- 0.3 ;0.4 06-11-03 238 2.2 +/- 0.4; 0.6 - 12-11-03 282 2.6 0.4; 0.6 -

06-19-03 326 2.0 +/- 0.3; 0.5 -0.5 +/- 0.4 ;0.4 12-18-03 285 3.3 +/-0.4; 0.7 -0.5+/-0.4;0.4 06-26-03 285 2.1 +/- 0.4 ;0.5 - 12-24-03 245 4.2 +/- 0.4; 0.9 -

2nd Qtr. Mean+/-s.d. 2.0+/-0.3 -0.3+/- 0.4 12-31-03 291 3.1 0.4; 0.7 0.24 0.3 ;0.3 4th Qtr. Mean+/-s.d. 2.8+/-0.7 -0.2+0.6

'Volume based on two week collection period.

'Volume low; no apparent reason for low reading of 139.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br />.

'Volume low; low reading of 45.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> due to blown fuse.

III-11

LASALLE Table 1. Airborne Particulates and Iodine Cartridges Collection: Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLDs: Gross Beta = 0.01, I-131 = 0.07 pCi/rn3 Units: 10 pCi/rn3 10 (C) Streator Date Volume Gross Date Volume Gross Collected (i 3 ) Beta I-131' Collected (m3 ) Beta I-131' 01-02-03 284 4.9 +/- 0.4; 1.0 -0.1 + 0.4 ;0.4 07-03-03 296 3.1 +/-0.3;0.6 -0.3+/-0.4 ;0.4 01-09-03 286 3.5 0.4; 0.8 - 07-10-03 274 2.7 +/- 0.4; 0.6 01-16-03 284 2.5 0.4; 0.6 0.6+0.3;0.4 07-17-03 287 1.9+/-0.3;0.5 0.1 0.3; 0.3 01-23-03 287 3.7 0.4; 0.8 - 07-24-03 290 1.7 +/- 0.3; 0.4 01-30-03 284 4.3 +/-0.4; 0.9 -0.1 + 0.4 ;0.4 07-31-03 285 2.5 +/- 0.3; 0.6 -0.2 + 0.3 ;0.3 02-06-03 284 3.6 +/- 0.4; 0.7 - 08-06-03 256 2.9 +/- 0.4; 0.7 02-13-03 285 2.8 0.4; 0.7 0.0 4 0.4 ;0.4 08-13-03 284 1.4 +/- 0.3; 0.4 -0.9 + 0.4 ;0.4 02-20-03 285 2.1 + 0.4; 0.5 - 08-21-03 311 3.8 +/- 0.4; 0.8 02-27-03 284 3.0 +/- 0.4; 0.6 0.1 + 0.3 ;0.3 08-28-03 284 3.6 +/-0.4; 0.8 1.04 0.3 ;0.4 03-06-03 286 2.9 + 0.4; 0.7 - 09-04-03 284 2.3 +/- 0.3; 0.5 03-13-03 285 4.0 + 0.4; 0.8 -0.2 4 0.4; 0.4 09-11-03 285 4.8 0.5; 1.0 0.3 + 0.3 ;0.3 03-20-03 285 2.7 +/- 0.4; 0.6 - 09-18-03 285 4.1 +/-0.4;0.8 03-27-03 285 2.3 + 0.4; 0.6 0.1 +/- 0.4 ;0.4 09-25-03 290 2.9 + 0.4 ; 0.7 -0.9+0.3 ;0.4 1st Qtr. Meanhs.d. 3.3+/-0.8 0.1+/-0.3 3rd Qtr. Mean+/-s.d. 2.9+/-1.0 -0.1+/- 0.7 04-03-03 284 2.3 +/- 0.4; 0.6 10-02-03 293 1.7 +/- 0.3; 0.4 -

04-10-03 285 1.8 +/- 0.3 ;0.4 0.2+/- 0.4 ;0.4 10-09-03 288 3.3 +/-0.4;0.7 -0.9+/-0.3 ;0.4 04-17-03 284 2.6 +/- 0.3; 0.6 - 10-16-03 283 3.3 0.4; 0.7 -

04-24-03 285 2.1 +/-0.3;0.5 0.2+/-0.4;0.4 10-23-03 291 3.3 0.4 ;0.7 0.8+/- 0.3 ;0.4 05-01-03 288 2.4 +/- 0.4; 0.6 - 10-30-03 283 2.1 +/-0.4 ;0.5 -

05-08-03 283 1.7 +/- 0.3 0.4 -0.4 +/- 0.4 ;0.4 11-06-03 288 2.0 0.4; 0.5 0.9 +/- 0.3 ;0.3 05-15-03 285 1.6 +/- 0.3; 0.4 - 11-13-03 285 3.8 +/- 0.4; 0.8 -

05-22-03 284 1.5 +/- 0.3 0.4 -0.2 +0.3 ;0.4 11-20-03 285 2.2 +/- 0.3 ;0.5 -0.6+/-0.3 ;0.4 05-29-03 284 2.3 +/- 0.4; 0.6 - 11-26-03 244 2.6 +/- 0.4; 0.6 -

06-05-03 285 2.1 +/-0.3;0.5 0.1+/-0.4;0.4 12-04-03 326 3.1 +/-0.4;0.7 0.8+/-0.3;0.3 06-11-03 244 2.0 +/- 0.4; 0.6 - 12-11-03 285 2.4 0.4; 0.6 -

06-19-03 326 2.1 +/- 0.3; 0.5 -0.6+/- 0.3 ;0.4 12-18-03 283 3.6 0.4; 0.8 1.1 +/- 0.3 ;0.4 06-26-03 285 2.5 +/- 0.4 ,0.6 - 12-24-03 246 3.6 +/-0.4; 0.8 -

2nd Qtr. Mean+/-s.d. 2.1+/-0.3 -0.1+/-0.3 12-31-03 284 2.9 +/-0.4; 0.7 -0.4+/- 0.4;0.4 4th Qtr. Mean+/-s.d. 2.8+/-0.7 0.2+ 0.8

'Volume based on two week collection period.

III- 12

LASALLE Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCilm3 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/rn3 Units: 10 4 pCi/m3 Sample Description and Concentration L-01 _Nearsite No. 1 2003 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code LAP-2074 LAP-4248 LAP-6616 LAP-8030 Volume 3,710 3,699 3,717 3,955 Mn-54 7.8 +/- 6.4 ; 6.5 -2.1 +/- 6.3 ; 6.3 -3.7 +/- 6.5 ; 6.5 3.1 +/- 4.7 ; 4.8 Fe-59 -3.3 +/- 9.4 ; 9.4 1.1 +/- 10.1 ; 10.1 21.9+/-7.6; 8.5 11.8+/-9.5 ;9.7 Co-58 -3.2+/-5.6;5.6 7.5 +/- 4.7 ; 4.9 2.0 4 4.3 ; 4.3 -5.7 +/- 4.8 ; 4.9 Co-60 0.3 +/- 5.9 ; 5.9 3.7+/-5.4;5.5 -1.5 +/- 5.4 ; 5.4 -3.6 +/- 6.9 ; 6.9 Zn-65 5.6 +/- 8.4 ; 8.4 7.2 +/- 12.8; 12.8 1.6+/- 9.5; 9.5 5.2 +/- 7.9 ; 7.9 Nb-Zr-95 -5.5 +/-6.0; 6.0 -3.3 +/-5.4; 5.4 7.4 +/-5.0; 5.1 -3.0 +/-5.4; 5.4 Cs-134 1.2+/-7.1 ;7.1 1.1 +/- 7.5 ; 7.6 -1.8+/-5.4;5.4 3.3+/-5.0;5.1 Cs-137 5.3 +/- 6.4 ; 6.4 6.0+/- 5.7 ;5.8 1.0+/- 6.0; 6.0 3.7 +/- 4.9 ; 4.9 Ba/La-140 -9.1 +/- 7.3;7.4 -48.4 +/- 7.6; 11.5 16.9 +/- 8.2;8.7 15.8 +/- 6.1 ; 6.7 L-03 Onsite No. 3 2003 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code LAP-2075 LAP-4249 LAP-6617 LAP-8031 Volume 3,677 3,709 3,393 3,958 Mn-54 -0.9 +/- 6.5 ; 6.5 1.2+/-5.2;5.2 -5.0 +/- 6.3 ; 6.4 -6.7 +/- 6.4 ; 6.5 Fe-59 8.8 +/-5.2;5.4 -2.2+/- 11.2; 11.2 -12.0 +/- 9.1; 9.3 1.0+/- 9.5 ;9.5 Co-58 1.4+/-6;2 ;6.3 -4.6 +/- 4.9 ; 4.9 -0.6 +/- 4.9 ; 4.9 -0.7+/-5.1 ;5.1 Co-60 0.4 +/- 7.3 ; 7.3 7.2 +/- 6.4; 6.5 7.1 +/- 8.1 ; 8.2 -1.9+/- 7.3 ;7.3 Zn-65 -16.8 +/- 14.4; 14.7 12.0+/-10.2; 10.4 2.7 +/- 12.8 ; 12.8 -0.7 +/- 10.3 ; 10.3 Nb-Zr-95 -6.5 +/-5.5; 5.7 3.0 +/-5.9; 6.0 -9.8 +/-6.7; 6.9 4.1 +/-4.0; 4.1 Cs-134 5.2 +/- 7.3 ; 7.3 10.8+/-6.3; 6.5 -1.3+/-6.1 ;6.1 5.0 +/- 5.9 ; 5.9 Cs-137 4.4 +/- 7.3 ; 7.4 -2.4 +/- 6.2 ; 6.2 3.6+/-6.1 ;6.1 -2.8+/-6.1 ;6.1 Ba/La-140 -30.9 +/- 8.2;9.9 21.1 1.6.5 ;7.5 9.3 +/- 6.3 ; 6.5 -6.5 +/- 4.6;4.7 II -13

LASALLE Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCi/m 3 Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60= 0.01; Zn-65 = 0.04; ZrINb-95 = 0.01; BaILa-140 = 0.025 pCi/rn 3 Urnis 104 pCilmn Sample Description and Concentration L-05 Onsite Station No. 5 2003 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code LAP-2076 LAP-4250 LAP-6618 LAP-8032 Volume 3,705 3,709 3,526 3,975 Mn-54 2.1+ 5.9 ; 6.0 1.2+/-3.9 ;3.9 6.4 +/- 6.3 ; 6.4 0.6 +/- 5.8 ; 5.8 Fe-59 -17.4 + 8.8; 9.4 -2.2+/- 11.2; 11.2 -9.0+/-9.1 ;9.2 -27.4+/- 12.1 ; 13.0 Co-58 0.8 + 5.6 ; 5.6 1.2+4.2 ;4.2 9.2+/- 5.0; 5.3 1.7+/- 4.0 ;4.0 Co-60 1.9 +/- 4.8 ; 4.9 6.1 44.5 ;4.6 5.9+/-7.6 ;7.7 -4.5 +/- 5.4 ; 5.5 Zn-65 -11.1 +/- 10.3 ; 10.5 4.0+/- 12.1 ; 12.1 -9.4 +/- 13.4; 13.5 -6.6+/- 12.1 ; 12.2 Nb-Zr-95 0.7 +/- 6.1 ; 6.1 -9.9 +5.6; 5.9 6.0 +/-3.3 ; 3.4 -8.7 +/-5.6; 5.8 Cs-134 2.4 +/- 4.4 ; 4.4 3.9+/-7.1 ;7.1 1.6+/-5.8; 5.8 -0.4 +/- 4.8 ; 4.8 Cs-137 0.7 + 4.6 ; 4.6 -3.5 +/- 6.0 ; 6.0 -3.5+/-5.9 ;6.0 0.2 +/- 6.2 ; 6.2 Ba/La-140 -8.0 +/- 4.9;5.1 -79.7 + 8.1; 16.3 -12.6 +/- 5.1 ;5.6 -17.7 +/- 3.6;4.8 L-06 Nearsite No. 6 2003 Collection Ist Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code LAP-2077 LAP-4251,2 LAP-6619 LAP-8033 Volume 3,706 3,442 3,718 3,960 Mn-54 3.6+5.6;5.7 2.6+/-4.2 ;4.2 6.1+/- 6.0 ; 6.1 -1.1 +/- 6.4 ; 6.4 Fe-59 -10.9 +/- 9.9; 10.1 -28.9 + 9.3; 10.6 -17.1 + 9.1; 9.6 5.9+/-8.6;8.7 Co-58 0.4 + 4.0; 4.0 0.4 +/- 4.4 ; 4.4 -3.0 + 4.0 ; 4.0 0. 1+/- 4.8 ; 4.8 Co-60 3.8 +/- 6.8 ; 6.9 2.9 +/- 3.2 ; 3.3 1.0+4.5 ;4.5 1.9 +/- 6.0; 6.0 Zn-65 -5.6 +/- 9.7; 9.8 -11.2 + 9.4 ; 9.6 4.1+/-7.8 ;7.9 6.7+/- 11.9; 12.0 Nb-Zr-95 -5.2 +/-5.2; 5.3 -3.6 +4.1; 4.1 4.9+7.4; 7.5 3.2 +/-3.9; 4.0 Cs-134 -1.3+/-6.1 ;6.1 -0.1+/- 5.0 ; 5.0 0.5 +/- 2.8 ; 2.8 -3.0 +/- 5.3 ; 5.4 Cs-137 0.1+/- 5.0; 5.0 -2.2 +/- 4.6 ; 4.6 -3.9+/- 5.5; 5.6 -3.2 +/- 5.3; 5.3 Ba[La-140 -15.0 +/- 4.4;5.1 34.6 +/- 6.1 ;8.6 -22.2 +/- 4.4;5.9 -7.5 +/- 6.8;6.9 III -14

LASALLE Table 2. Airborne Particulates Collection: Quarterly composites of weekly collections ODCM-Required LLDs: Cs-134 = 0.05, Cs-137 = 0.06 pCi/m 3 Other LLDs: Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCi/m3 T Tittc- iI nrdli/m 3 Sample Description and Concentration L-10 (C) Streator 2003 Collection 1st Qtr. 2nd Qtr. 3rd Qtr. 4th Qtr.

Period Lab Code LAP-2078 LAP4253 LAP-6620 LAP-8034 Volume 3,711 3,709 3,719 3,971 Mn-54 6.0 +/- 6.0 ; 6.1 0.9 +/- 4.5 ; 4.5 6.1 3.5 ; 3.6 3.1 +4.7 ;4.7 Fe-59 8.7 + 9.5; 9.7 -3.4 +/- 9.4 ; 9.4 2.4 +8.1 ; 8.1 -7.8 +/- 9.6 ; 9.7 Co-58 -2.3+/-5.2;5.2 -9.2 +/- 6.5 ; 6.7 -4.9 4.8 ;4.9 -0.6 +/- 4.7 ; 4.7 Co-60 -2.2 +/- 6.6 ; 6.6 -5.6 +/- 6.9 ; 7.0 2.0k 6.4; 6.4 1. 1 +5.7 ;5.7 Zn-65 0.8+ 11.4; 11.4 -34.3 +/- 16.1 ; 17.3 -8.9 + 12.7; 12.8 11.8+/- 11.4; 11.6 Nb-Zr-95 8.6 +/-4.7; 5.0 6.1 +/- 6.2; 6.3 3.7 +5.1 ; 5.2- -1.2 +/-5.6; 5.6 Cs-134

  • 3.8+/-3.9;4.0 3.9 +/-7.1 ; 7.1 4.3 +/- 4.8 ; 4.9 2.0 +/- 5.3 ; 5.3 Cs-137 1.1 +/-5.6; 5.6 8.6 +/- 6.5 ; 6.7 -3.9 I 5.5 ; 5.6 -0.7 +/- 5.7 ; 5.7 Ba/La-140 34.6 +/- 4.8;7.8 6.3 +/- 5.8;5.9 51.5 4 4.7;10.3 10.3 +/- 5.7;6.0 III -15

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

Monthly (November - April)

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

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration L-42 (C) Biros Farm Date Collected 01-02-03 02-06-03 03-06-03 04-03-03 Lab Code LMI-30 LMI-538 LMI-967 LMI-1514 I-131 -0.10+0.21 ;0.21 -0.03 +/-0.16 ;0.16 0.04 +/-0.17 ;0.17 -0.10 +0.19 ;0.19 Mn-54 0.1 +/-2.9;2.9 -3.0+/-4.2 ;4.3 0.8+/-2.4;2.4 0.6+/- 1.8; 1.8 Fe-59 -3.6 +/- 6.1 6.2 -1.3 + 9.3 ;9.3 -2.5+/-5.3 ;5.3 -0.4 + 4.3 ;4.3 Co-58 1.0+/-3.1 ;3.1 0.5 + 4.6 ;4.6 2.9 +/- 2.6 ;2.6 0.5 +/- 2.0; 2.0 Co-60 2.0+/-3.1; 3.1 3.1 i 4.3; 4.3 1.1 +/- 2.4; 2.4 1.2+/-2.3; 2.3 Zn-65 -1.9 +/-6.5; 6.5 1.6 + 10.5; 10.5 2.4+ 5.1; 5.1 0.4+/- 5.6; 5.6 Zr/Nb-95 1.6+/- 2.4 ;2.4 4.4+ 3.9 ;4.0 -0.2+ 2.5 ;2.5 0.7+/- 1.9; 1.9 Cs-134 1.2 3.2 ;3.2 -4.2+ 5.1 ;5.1 1.2+/-2.9;2.9 0.1 +2.1 ;2.1 Cs-137 3.7+/-3.1 ;3.1 -1.5+/-4.2 ;4.2 -3.1 +/-2.9 ;2.9 -0.8+/-2.1 ;2.1 Ba-140 1.9 9.0 ;9.0 -10.0+/- 13.7; 13.8 11.3+/-8.8 ;9.0 -7.9 +/- 7.3 ;7.4 La-140 -4.6 +3.8; 3.9 2.6 +/-3.6 ; 3.6 -1.0 +/-2.0; 2.0 -1.5 +/-2.0; 2.0 Date Collected 05-01-03 05-15-03 05-29-03 06-11-03 Lab Code LMI-2178 LMI-2622,3 LMI-2830 LMI-3187 I-131 0.00 +/- 0.16;0.16 0.11 +/-0.14 ;0.14 0.08 +/-0.18 ;0.18 0.10 +/- 0.19 ;0.19 Mn-54 1.5+/- 3.5 ;3.5 0.7 + 2.3 ; 2.3 -1.0 +/- 3.9; 3.9 2.1 + 2.3 ; 2.3 Fe-59 0.5 +/-7.1 ;7.1 0.0 +/- 4.6 ; 4.6 0.6+/- 7.4 ;7.4 1.9 +/- 3.7; 3.7 Co-58 1.7+/-3.4 ;3.4 2.7 +/- 2.2 ; 2.2 -1.4 +/- 3.9; 3.9 -0.4 +/- 2.0 ; 2.0 Co-60 0.4+/-3.5; 3.5 1.5 +/- 3.1 ; 3.1 -0.4+/-3.7; 3.7 0.2 + 2.3; 2.3 Zn-65 3.1+/-8.9; 8.9 0.2 + 5.1 ; 5.1 -1.0+/- 10.0; 10.0 -2.4 +/- 5.7; 5.7 Zr/Nb-95 -1.5+/- 3.7 ; 3.7 0.1+/-1.9; 1.9 0.1+/- 3.9 ;3.9 0.3+/- 2.1 ;2.1 Cs-134 -0.1+/-4.1 ;4.1 0.7 +/- 2.2 ; 2.2 2.6+/-4.0; 4.1 1.5+/-2.4;2.4 Cs-137 3.2 +/- 3.9 ; 3.9 1.7+/- 2.2 ;2.2 3.3+/-3.8 ;3.8 0.2 +/- 2.3 ; 2.3 Ba-140 -8.7 +/- 12.0; 12.1 -9.1 + 7.6 ; 7.7 -0.8 +/- 1 1.0 ; 11.0 3.2 +/- 7.2 ; 7.2 La-140 -6.2 +/-4.3 ; 4.4 -2.5 +2.1; 2.1 0.8 +/-4.7 ; 4.7 0.7 +/-2.5 ; 2.5 II - 16

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

Monthly (November - April)

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

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration L-42 (C) Biros Farm Date Collected 06-26-03 07-10-03 07-24-03 08-06-03 Lab Code LMI-3452 LMI-3815 LMI-4178 LMI-4569 I-131 -0.08 +/-0.15 ;0.15 0.04 +/- 0.22 ;0.22 -0.01 +/-0.16;0.16 -0.06 +/-0.21 ;0.21 Mn-54 -0.7+/-2.1 ;2.1 2.5+/-2.2 ;2.2 -0.6+/-4.1 ;4.1 -0.2 +/- 1.7; 1.7 Fe-59 -4.7+/-5.1 ;5.2 -1.1 5.1 5.1 3.8 +/- 9.3 ;9.3 -0.4+/-5.1 ;5.1 Co-58 -2.2 +/- 1.9; 2.0 -1.4+/-2.1 ;2.1 -1.9 +/- 3.7; 3.7 -0.4 +/- 2.0; 2.0 Co-60 -0.5 +/- 1.8; 1.8 1.3 2.3; 2.3 -0.2 +/- 5.0; 5.0 1.6+/-2.3; 2.3 Zn-65 1.8 +/- 5.5; 5.5 -5.7 +/- 6.2; 6.3 4.1 +/- 8.3; 8.3 4.0 +/- 5.2; 5.3 Zr/Nb-95 -2.0+/- 1.8 1.8 -3.0+/-2.3 ;2.4 -0.3 + 3.5 3.5 -1.5+/- 2.2 ;2.2 Cs-134 2.1+/- 2.4 ;2.4 0.9 2.8 ;2.8 -4.6 +/-5.2 5.2 0.4+/- 2.3 ;2.3 Cs-137 -1.9+/-2.7;2.7 -0.442.1 ;2.1 -1.4 +/- 4.0 4.0 1.1+/- 2.2 ;2.2 Ba-140 -2.3 +/- 7.2 ;7.2 -2.8 +/- 7.4 ; 7.4 0.2+/- 11.6; 11.6 -0.1 +/-7.8 ;7.8 La-140 -3.2 +/-2.4; 2.5 0.9 +/-1.9; 1.9 -2.3 +/-3.7 ; 3.7 -3.5 +/-2.3; 2.3 Date Collected 08-21-03 09-04-03 09-18-03 10-02-03 Lab Code LMI-4789 LMI-5044 LMI-5346 LMI-5655 I-131 0.05 +/- 0.20 ;0.20 0.00 +/- 0.13 ;0.13 0.03 +/- 0.15 ;0.15 -0.00 +/- 0.17 ;0.17 Mn-54 -3.1 +/- 3.4; 3.4 -0.1 +/- 2.8 ; 2.8 -0.9 + 2.2 ; 2.2 -0.6 +/- 1.9; 1.9 Fe-59 -4.3 +/- 6.7 ; 6.8 -11.6+ 6.3 ;6.5 -4.1 +4.8 ;4.8 2.7 +/- 3.8 ; 3.8 Co-58 -1.4+/- 3.3 ;3.3 -1.0 +/- 2.9; 2.9 -0.1 +/-2.1 ;2.1 0.2 +/- 1.8 ; 1.8 Co-60 -0.2 +/- 4.4; 4.4 2.0+/-3.5; 3.5 1.0+/-2.5; 2.5 -2.5 +/- 2.3; 2.3 Zn-65 -0.7 +/- 8.3; 8.3 -5.1 +/- 7.4 ; 7.5 -4.7 +/- 6.8; 6.9 4.0 +/- 5.9; 5.9 ZrlNb-95 3.6+/- 3.2 ;3.2 -0.0+/- 2.7 ;2.7 0.9+/- 2.1 ;2.1 1.2+/- 1.9 ;2.0 Cs-134 2.5 +/- 3.5 ; 3.6 -0.8 +/-3.4;3.4 -0.9 +/- 2.5 ; 2.5 -0.7 +/- 2.4 ; 2.4 Cs-137 1.4+/-3.6;3.6 0.8+/-2.8 ;2.8 0.1 +/- 2.2 ; 2.2 -1.8+/-2.2;2.3 Ba-140 14.4 +/- 10.0; 10.2 0.1+/- 9.8 ; 9.8 5.8+/-8.1 ;8.1 2.0+/- 7.1 ;7.1 La-140 2.2 +/-4.0 ; 4.1 -2.8 +3.0 ; 3.1 1.8 +/-1.9 ; 1.9 -0.2 +/-1.6 ; 1.6 III - 17

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

Monthly (November - April)

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

Other LLDs: Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units: pCi/L Sample Description and Concentration L-42 (C) Biros Farm Date Collected 10-16-03 10-30-03 11-13-03 12-04-03 Lab Code LMI-6127 LMI-6532 LMI-6887 LMI-7260 I-131 0.16 +/-0.16 ;0.16 -0.10 +/- 0.22 ;0.22 0.18 +/- 0.22 ;0.22 -0.04 + 0.16 ;0.16 Mn-54 -1.7+/-3.2 ;3.2 -2.6 +/- 3.5 ; 3.5 -1.8 +/- 2.5; 2.5 -0.4 + 3.7 ; 3.7 Fe-59 -1.9 +/- 7.4; 7.5 1.3+/-7.3 ;7.3 0.4 +/- 5.0; 5.0 -7.0 +/- 7.7 ; 7.8 Co-58 -2.1 +/- 3.0 ; 3.0 0.6:1:3.1 ;3.1 0.8 +/- 2.3 ; 2.3 -1.7 +/- 2.6 ; 2.6 Co-60 1.4 +/-:3.5; 3.5 1.3+/-4.2; 4.2 1.6+/- 1.5; 1.5 3.1+/-4.9; 5.0 Zn-65 0.7:+/-:8.5; 8.5 1.0+/-9.0; 9.0 1.5+/-6.0; 6.0 -7.2 +/- 7.6; 7.7 Zr/Nb-95 -0.9 : 3.2; 3.2 -0.3 +/- 3.2; 3.2 -0.6 +/- 2.2 ;2.2 1.3+/- 3.6 ;3.6 Cs-134 -1.4 : 3.4 ; 3.4 -2.5 + 4.0 ; 4.0 -0.3 +/- 2.3 ; 2.3 4.2 +/- 3.0; 3.0 Cs-137 1.4:1:3.4; 3.4 -0.7+/- 3.4; 3.4 0.4+/-2.2 ;2.2 1.7+/-3.8 ;3.8 Ba-140 4.1+/-9.1 ;9.2 -2.5+/- 11.6; 11.6 -5.6 +/- 7.9 ; 8.0 2.1 +/- 12.7 ; 12.7 La-140 -1.5 +/-4.1 ; 4.1 2.3 +/-2.8 ; 2.9 -0.5 +/-2.5 ; 2.5 3.9 +/-3.7 ; 3.7 III - 18

LASALLE Table 4. Fish, Edible Portions Collection: Semiannually ODCM-Required LLDs: Mn-54 = 0.13, Fe-59 = 0.26, Co-58 = 0.13, Co-60 = 0.13, Zn-65 0.26, Cs-134 = 0.1, Cs-137 = 0.1 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, BalLa-140 = 0.30 pCi/g wet weight Units: 10*2 pCi/g wet weight Sample Description and Concentration L-34 LaSalle Cooling Lake Date Collected 05-08-03 05-08-03 10-08-03 10-08-03 Lab Code LF-2364 LF-2365 LF-5814 LF-5815 Type Channel Catfish Largemouth Bass Channel Catfish Smallmouth Bass Mn-54 0.7+/- 1.1; 1.1 -0.2 + 0.8 ; 0.8 0.3 +/- 0.7 ; 0.7 0.3 +/- 0.9 ; 0.9 Fe-59 1.1+/-2.3 ;2.3 -2.0+/-2.1 ;2.1 -0.4 +/- 1.9; 1.9 0.2 +/- 2.0; 2.0 Co-58 -0.4 +/- 1.2; 1.2 -0.4 +/- 0.7 ; 0.7 -0.1 + 0.9 ; 0.9 -0.2 +/- 0.7 ; 0.7 Co-60 0.1 +/- 1.1 ; 1.1 -0.1 + 0.8 ; 0.8 1.0+/- 0.9 ;0.9 0.4 +/- 1.2 ; 1.2 Zn-65 -2.8+/-3.1 ;3.1 -1.8 +/- 2.6 ; 2.6 0.5+/- 1.9; 1.9 0.1+/- 2.6 ; 2.6 Nb/Zr-95 . -0.2+/- 1.1; 1.1 0.9 +/- 0.7 ; 0.8 0.8 +/- 0.7 ; 0.8 1.0+/- 0.8; 0.8 Cs-134 0.2+/-1.1; 1.1 -0.5 + 0.8 ; 0.8 0.8 +/- 0.8 ; 0.8 -0.5 +/- 1.1 ; 1.1 Cs-137 0.3 +/- 1.2 ; 1.2 0.0 + 0.9 ; 0.9 -0.3 +/- 0.8 ; 0.8 0.4 +/- 1.0 ; 1.0 Ba/La-140 -0.5+/-1.0; 1.0 0.9+/- 1.0; 1.0 -0.4 +/- 0.7 ; 0.7 -1.5 + 0.8 ; 0.8 III - 19

LASALLE Table 4. Fish, Edible Portio,ns Collection: Semiannually ODCM-Required LLDs: Mn-54 = 0.13, Fe-59 = 0.26, Co-58 = 0.13, Co-60 = 0.13, Zn-65 =0.26, Cs-134 = 0.1, Cs-137 = 0.1 pCi/g wet weight Other LLDs: ZrINb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10 2 pCi/g wet weight Sample Description and Concentration L-35 (C) Marseilles Pool of Illinois River Date Collected 05-08-03 05-08-03 10-08-03 10-08-03 Lab Code LF-2368 LF-2369 LF-5812 LF-5813 Type Channel Catfish Freshwater Drum Channel Catfish Smallmouth Buffalo Mn-54 -0.0 + 0.7 ; 0.7 -0. I0.8;0.8 -0.4 +/- 0.9 ; 0.9 0.2 +/- 0.9 ; 0.9 Fe-59 1.3 +/- 1.7 ; 1.7 1.6 + 1.8 ; 1.8 1.4 +/-2.0 ; 2.0 0.1 +/- 1.9; 1.9 Co-58 -0.3 +/- 0.7 ; 0.7 0.0 + 0.7 ; 0.7 0.6+/-0.8 ;0.8 0.2 4 0.8 ; 0.8 Co-60 0.1 +/- 1.0; 1.0 0.1 -4 1.0 ; 1.0 0.8 +/- 0.9 ; 0.9 1.0 4 0.9 ; 0.9 Zn-65 -1.5d 2.1 ;2.1 1.4 +/-2.3 ; 2.3 -0.5 +2.1 ; 2.1 -1.2 +/- 1.9; 1.9 Nb/Zr-95 1.6 + 0.8 ; 0.9 -0.3 +/- 0.7; 0.7 0.5 0.8;0.8 -0.4 +/- 0.9 ; 0.9 Cs-134 -0.1 +/- 0.7; 0.7 0.5+ 1.0; 1.0 -0.1 +/- 0.9 ; 0.9 0.8k 1.0; 1.0 Cs-137 1.0. 0.8 ; 0.9 0.3 +/-0.8 ;0.8 -0.4 +/- 0.9 ; 0.9 -1.0 +/- 0.9 ; 0.9 Ba/La-140 0.2 +0.9 ;0.9 1.9 +0.9 ; 0.9 -0.1 +/- 1.0; 1.0 0.1 +/- 1.1 ; 1.1 III -20

LASALLE Table 4. Fish, Edible Portions Collection: Semiannually ODCM-Required LLDs: Mn-54 = 0.13, Fe-59 = 0.26, Co-58 = 0.13, Co-60 = 0.13, Zn-65 = 0.26, Cs-134 = 0.1, Cs-137 = 0.1 pCi/g wet weight Other LLDs: Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight Units: 10 *2 pCi/g wet weight Sample Description and Concentration L-36 Illinois River. Upstream of Discharge Date Collected 05-08-03 05-08-03 10-08-03 10-08-03 Lab Code LF-2366 LF-2367 LF-5810 LF-5811 Type Channel Catfish Smallmouth Buffalo Channel Catfish Common Carp Mn-54 0.5 4 0.8; 0.8 -0.2 +/- 0.8 ; 0.8 0.8 +/- 0.9 ; 0.9 -0.4 + 0.5 ; 0.5 Fe-59 -0.7 +/-2.1 ; 2.1 -2.2 4 1.8 ; 1.8 -0.4 +2.1 ; 2.1 1.0 1.0; 1.0 Co-58 0.5 +/- 0.7 ; 0.7 -0.3+/- 0.8; 0.8 -0.2 +/- 0.9 ; 0.9 0.2 + 0.4 ; 0.4 Co-60 -0.1 + 1.1 ; 1.1 -0.3 + 0.8 ; 0.8 0.1 +/- 1.2 ; 1.2 0.4 +/- 0.5 ; 0.5 Zn-65 0.9 +/- 2.2 ; 2.2 0.7 +/- 2.3 ; 2.3 -1.8 +/-2.8; 2.8 -1.4+/- 1.4; 1.4 Nb/Zr-95 0.2 +/- 0.7 ; 0.7 -0.8 +/- 0.7 ; 0.7 -0.9g0.9; 1.0 0.0 +/- 0.5 ; 0.5 Cs-134 -0.3 +/- 1.0; 1.0 -0. 1 +/- 1.0 ;' 1.0 0.8 k 1.0 ; 1.0 0.6 +/- 0.5 ; 0.5 Cs-137 0.9d 1.0; 1.0 -0.6 +/- 1.0; 1.0 0.5 A 0.8 ; 0.8 0.1 +/- 0.4 ; 0.4 Ba/La-140 -0.5 + 0.7 ; 0.7 0.3 +/- 0.8 ; 0.8 -0.2 + 1.0; 1.0 -0.7 +/- 0.5 ; 0.6 III -21

LASALLE Table 5. Bottom Sediments Collection: Semiannually ODCM-Required LLDs: Cs-134 = 0.15, Cs-137 = 0.18 pCi/g dry weight Other LLDs: Mn-54 0.15; Fe-59 = 0.60; Co-58, Co-60 = 0.10; Zn-65 = 0.60; ZrlNb-95 = 0.20; Ba/La = 0.60 g dry weight Units: 10 -2 pCi/g dry weight Sample Description and Concentration L-40 Illinios River Downstream Date Collected 05-15-03 10-02-03 Lab Code LBS-2626 LBS-5698 Mn-54 0.2+/- 1.0; 1.0 0.0 +/- 0.7 ; 0.7 Fe-59 -1.14 2.2 ; 2.2 -0.8+/- 1.8; 1.8 Co-58 -0.2 + 0.9 ; 0.9 -0.2 +/- 0.9 ; 0.9 Co-60 1.2+/- 1.2; 1.2 0.2 +/- 0.9 ; 0.9 Zn-65 -0.3 +/- 3.0 ; 3.0 -1.6 +/- 2.0; 2.1 Nb/Zr-95 -1.4+/- 1.2; 1.2 -3.7+/- 0.9; 1.1 Cs-134 0.7+/- 1.1; 1.1 0.4+/- 1.0; 1.0 Cs-137 3.8 +/- 2.2 ; 2.3 1.0+/- 0.9; 0.9 Ba/La-140 -1.8 +/- 1.2; 1.2 -0.9 +/- 0.5 ; 0.5 L-41 Illinios River Downstream Date Collected 05-15-03 10-02-03 Lab Code LBS-2627 LBS-5699 Mn-54 0.9+/- 1.0; 1.0 0.2 +/- 1.4 ; 1.4 Fe-59 -0.7 +/- 2.5 ; 2.5 1.7+/-3.4;3.4 Co-58 -0.6 +/- 0.9 ; 0.9 -0.0 +/- 1.2; 1.2 Co-60 0.7 +/- 1.3 ; 1.3 1.6+ 1.8; 1.8 Zn-65 2.9+/-2.6;2.7 -9.3 +/- 4.9 ; 5.0 Nb/Zr-95 -2.1 +/- 1.2; 1.2 -2.8+/- 1.6; 1.6 Cs-134 2.0+/- 1.2; 1.2 -0.5 +/- 1.7; 1.7 Cs-137 6.4+/-2.4;2.6 3.0 + 1.7 ; 1.8 Ba/La-140 1.0+/- 1.0; 1.0 -3.7+/-1.3; 1.4 III -22

LASALLE Table 6. Vegetation Collection: Annually ODCM-Required LLDs: I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; Zr/Nb-95 = 0.01; Ba/La-140 = 0.02 pCi/g wet weight Units: 10.2 pCi/g wet weight Sample Description and Concentration T~nnre ftr V--eyna (01--antc L--_UI.tU -U I -I U9G~ -. 1- ".l Date Collected 09-04-03 09-04-03 Lab Code LVE-5120 LVE-5121 Type Cabbage Onions Mn-54 -0.6 +/- 0.8 ; 0.8 -0.4 +/- 0.8 ; 0.8 Fe-59 -0.4 +/- 1.6; 1.6 1.5+/- 1.2; 1.3 Co-58 0.0 +/- 0.7 ; 0.7 0.7+/- 0.8; 0.8 Co-60 0.5 +/- 0.8 ; 0.8 -0.6 +/- 1.2 ; 1.2 Zn-65 0.3 +/- 2.0 ;2.0 1.1 +/- 1.9 ;2.0 Nb/Zr-95 -0.3 +/- 0.7 ;0.7 -1.0 +/- 0.7 ;0.7 I-131 1.1 +/-0.7 ;0.7 0.4 4 0.6 ;0.6 Cs-134 0.4+0.8 ;0.8 -0.0 + 0.9 ; 0.9 Cs-137 0.2 +/- 0.9 ; 0.9 0.4 +/-0.8 ;0.8 Ba/La-140 -0.9 i 0.7 ;0.7 0.1 +/-0.8 ;0.8 L-Ouad 1 Diane Partridge Date Collected 09-04-03 09-04-03 Lab Code LVE-5111,2 LVE-5113 Type Cabbage Beets Mn-54 0.2 +/- 0.4 ; 0.4 -0.2 +/- 0.7 ; 0.7 Fe-59 -0.1 +/- 54.9 ; 54.9 -0.5 +/- 1.5; 1.5 Co-58 -0.1 +/- 0.5 ; 0.5 -0.8 +/- 0.7 ; 0.7 Co-60 -0.0 +/- 0.5 ; 0.5 0.7 +/- 0.8 ; 0.8 Zn-65 -1.2 +/- 1.2 ;1.2 1.2 +/- 1.9 ;1.9 Nb/Zr-95 0.4 +/- 0.4 ;0.4 -0.3 +/- 0.7 ;0.7 I-131 -0.4 +/- 0.5 ;0.5 0.3 +/- 0.6 ;0.6 Cs-134 0.2 +/- 0.6 ; 0.6 -0.4 +/- 0.9 ; 0.9 Cs-137 0.1 +/-0.5;0.5 -0.1 A0.8;0.8 Ba/La-140 -0.1 +/-0.4 ;0.4 0.1 +/-0.5 ;0.5 III -23

LASALLE Table 6. Vegetation Collection: Annually ODCM-Required LLDs: I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; Zr/Nb-95 = 0.01; Ba/La-140 = 0.02 pCi/g wet weight Units: 10 2 pCi/g wet weight Sample Description and Concentration L-Ouad 2 Mike & Gina Welbourne Date Collected 09-04-03 09-04-03 Lab Code LVE-5114 LVE-5115 Type Cabbage Beets Mn-54 -0.3 +/- 0.8 ; 0.8 0.6 +/- 0.5 ; 0.5 Fe-59 0.7+/- 1.6; 1.6 0.7+ 1.4; 1.4 Co-58 -0.0 + 0.9 ; 0.9 -0.3 +/- 0.4 ; 0.4 Co-60 -0.6 + 1.0; 1.0 0.8 + 0.6; 0.6 Zn-65 -1.3 +/- 1.8 ;1.8 0.5 + 1.5 ;1.5 Nb/Zr-95 0.2 +/- 0.8 ;0.8 -0.3 a 0.6 ;0.6 I-131 0.4 +/- 0.9 ;0.9 0.1 +/-0.4 ;0.4 Cs-134 -0.5 + 0.9 ; 0.9 -0.2+/- 0.6; 0.6 Cs-137 -0.0 +/- 0.9 ; 0.9 0.1 +/-0.6;0.6 Ba/La-140 0.3 +/- 0.8 ;0.8 0.0 +/- 0.5 ;0.5 L-Quad 3 Michael Olson Date Collected 09-04-03 09-04-03 Lab Code *LVE-5116 LVE-5117 Type Cabbage Potatoes Mn-54 0.5 + 0.5 ; 0.5 0.3 +/- 0.5 ; 0.5 Fe-59 0.1 +/- 0.8 ; 0.8 -1.1 +/- 1.1 ; 1.1 Co-58 -0.4 +/- 0.5 ; 0.5 -0.1 +/- 0.5 ; 0.5 Co-60 -0.5 +/- 0.6 ; 0.6 0.0 +/- 0.8 ; 0.8 Zn-65 -1.1 +/- 1.2 ;1.3 0.9 +/- 1.1 ;1.1 Nb/Zr-95 -0.2 + 0.4 ;0.4 -0.2 +/- 0.5 ;0.5 I-131 0.5 +/- 0.4 ;0.4 -0.3 +/- 0.5 ;0.5 Cs-134 -0.2 +/- 0.5 ; 0.5 -0.0 +/- 0.6 ; 0.6 Cs-137 0.2 +/- 0.5 ; 0.5 -0.7 +/- 0.6 ; 0.6 BaILa-140 0.5 + 0.4 ;0.4 -0.1 +/- 0.5 ;0.5 III -24

LASALLE Table 6. Vegetation Collection: Annually ODCM-Required LLDs: 1-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight Other LLDs: Mn-54 = 0.05; Fe-59 = 0.10; Co-58, Co-60, Zn-65 = 0.05; Zr/Nb-95 = 0.01; Ba/La-140 = 0.02 pCi/g wet weight Units: 102 pCi/g wet weight Sample Description and Concentration L-Ouad 4 Robert Eisers Date Collected 09-04-03 09-04-03 Lab Code LVE-5118 LVE-5119 Type Cabbage Potatoes Mn-54 -0.4 +/- 0.5 ; 0.5 -0.2 + 0.6 ; 0.6 Fe-59 -0.3 + 1.3; 1.3 -0.3 +/- 1.0; 1.0 Co-58 -0.2 + 0.5 ; 0.5 -0.2 + 0.6 ; 0.6 Co-60 0.2 + 0.5 ; 0.5 -0.2 + 0.7 ; 0.7 Zn-65 0.1 +1.4;1.4 0.1 +/-1.3;1.3 Nb/Zr-95 -0.2 +/- 0.5 ;0.5 -0.9 +/- 0.6 ;0.6 I-131 -0.6 4 0.5 ;0.5 0.2 + 0.5 ;0.5 Cs-134 0.2 + 0.7 ; 0.7 -0.4 +/- 0.6; 0.6 Cs-137 -0.3 4 0.6 ; 0.6 -0.3 + 0.6 ; 0.6 Ba/La-140 -0.1 + 0.4 ;0.4 -0.1 +/-0.5 ;0.5 III -25

LASALLE Table 7. Surface Water Collection: Monthly composites of weekly collections ODCM- Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration L-21 (C) Illinois River at Seneca 2003 Collection January February March Period Lab Code LSW-501 LSW-989 LSW-1487,8 Gross Beta 5.4+/-1.1 ;1.4 6.6 +/- 1.2 ;1.6 7.2+/- 0.9 1.2 Mn-54 -0.5+/-2.9; 2.9 2.6+/- 3.1 ;3.2 -1.0+/- 1.5; 1.5 Fe-59 -8.9+/- 6.6; 6.7 -1.8+/- 5.3; 5.3 -3.1+/- 3.8; 3.8 Co-58 -2.6+/- 3.0; 3.0 0.5+/- 3.3; 3.3 -1.3+/- 1.6; 1.6 Co-60 0.5+/- 3.8; 3.8 0.4+/- 3.5; 3.5 1.2+/- 1.9; 1.9 Zn-65 2.4 6.7 ;6.7 4.4+/- 6.1; 6.1 -2.9+/- 3.9; 3.9 Zr-95 13.5+/- 6.5; 6.8 -2.8+/- 7.5; 7.5 2.4+/- 2.9; 2.9 Nb-95 4.9+/- 3.5 3.6 2.4+/- 3.3 3.3 -0.3 +/- 1.6; 1.6 Cs-134 -0.1+/-3.9; 3.9 2.4+/- 3.9; 3.9 1.6+/-2.1 ;2.1 Cs-137 -0.3+/-3.0 ;3.0 -0.6+/- 3.1 ;3.1 0.8+/- 1.6; 1.6 Ba-140 -12.8+/- 10.8 ; 10.9 -10.4+/- 10.4; 10.5 -5.8+/- 6.0; 6.0 La-140 7.9+/- 3.5; 3.6 4.3+/- 2.9; 3.0 1.1+/- 2.3; 2.3 2003 Collection April May June Period Lab Code LSW-2493 LSW-2959 LSW-3854 Gross Beta 5.7+/- 1.3; 1.5 4.8+/- 1.1 ;1.3 5.0 + 1.2 ; 1.4 Mn-54 -0.1+/- 0.9 ; 0.9 1.0+ 2.3 ; 2.3 1.1+ 1.1 ; 1.1 Fe-59 -1.9+/- 1.5 ; 1.6 -6.0+/- 5.6 ; 5.7 0.94 2.0 ; 2.0 Co-58 -0.4+/- 1.0; 1.0 -1.8+/- 2.6 ; 2.6 0.2+/- 1.0; 1.0 Co-60 1.5+/- 1.1 ; 1.1 -1.4+/- 3.3 ; 3.3 -0.8+/- 1.2 ; 1.2 Zn-65 -0.4+/- 2.1 ; 2.1 -0.4+ 3.9 ; 3.9 -1.2:+/- 2.2 ; 2.2 Zr-95 1.2+/- 1.9; 1.9 -5.6+/- 6.2; 6.2 0.7+/- 2.5; 2.5 Nb-95 0.6+ 1.0; 1.0 -2.5+3.0; 3.1 0.24 1.1; 1.1 Cs-134 0.1+/- 1.0; 1.0 -2.7+ 2.8 ; 2.8 1.1+/- 1.2 ; 1.2 Cs-137 0.2+/- 1.1 ; 1.1 -1.3+/- 3.3 ; 3.3 -0.2+/- 1.2 ; 1.2 Ba-140 -5.1+/-3.9 ;4.0 8.8+/- 8.4; 8.5 1.1+/-3.9 ;3.9 La-140 5.1+/- 1.2 ; 1.4 -6.0+/- 3.7 ; 3.8 -3.7+/- 1.3; 1.4 III -26

LASALLE Table 7. Surface Water Collection: Montly composites of weekly collections ODCM- Gross Beta =4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCifL Units: pCi/L Sample Description and Concentration L-21 (C) Illinois River at Seneca 2003 Collection July August September Period Lab Code LSW-4377 LSW-5074 LSW-5568 Gross Beta 3.5+/- 1.4; 1.5 5.2+/- 1.3 1.5 5.3 +/- 1.1 1.4 Mn-54 -1.9+/- 3.1; 3.2 0.2+/- 1.2; 1.2 -1.3+/- 1.7; 1.8 Fe-59 4.3+/- 5.9 ;5.9 -0.5+/- 2.2; 2.2 -2.9+/- 4.1; 4.1 Co-58 1.7+/- 2.8 ;2.9 -0.1+/- 1.0; 1.0 -0.2+/- 1.8; 1.8 Co-60 -0.4+/- 3.7; 3.7 -0.8+/- 1.3; 1.3 0.2+/- 2.1; 2.1 Zn-65 5.6+/- 6.0; 6.1 2.1+/- 2.1 2.1 -1.94 3.8; 3.9 Zr-95 -0.5+/- 6.0; 6.0 0.9+/- 2.3; 2.3 3.1+/- 3.3; 3.4 Nb-95 -0.7+/- 2.9 ; 2.9 -0.2+/- 1.1 1.1 -0.5 +/- 1.9; 1.9 Cs-134 1.4+/- 3.6; 3.6 -0.6+/- 1.5; 1.5 0.2+/- 2.0; 2.0 Cs-137 -0.2+/- 3.5 ;3.5 0.4+/- 1.3; 1.3 -0.2+/- 2.0; 2.0 Ba-140 5.0+/- 10.5 ; 10.5 -1.2+/-4.1 4.1 6.3+/- 6.7 ;6.8 La-140 -3.2 +/- 4.4; 4.5 -2.5+/- 1.4; 1.5 2.0+/- 2.1; 2.1 2003 Collection October November December Period Lab Code LSW-6709 LSW-7353 LSW-7728 Gross Beta 6.9+/- 1.2; 1.6 5.1+/- 1.1 ;1.3 4.4+/- 1.1 ; 1.3 Mn-54 1.1+/-2.0; 2.0 3.0+/- 3.4 ; 3.4 -0.3+/- 3.7 ; 3.7 Fe-59 -1.5+/- 4.4 ; 4.4 -0.44 5.5 ; 5.5 -7.6+/- 6.9 ; 7.0 Co-58 -2.9+/- 2.1 ; 2.2 3.7+/- 3.0 ; 3.0 1.5+/- 3.0 ; 3.0 Co-60 -1.4+ 2.7 ; 2.7 1.6+/- 4.1 ; 4.1 -0.5+/- 3.6 ; 3.6 Zn-65 -0.5+/- 4.6 ; 4.6 -1.8+/- 5.8 ; 5.8 1.1+/- 6.0 ; 6.0 Zr-95 -2.0+/- 6.0; 6.0 5.9+/- 6.4; 6.4 4.9+/- 7.1 ; 7.2 Nb-95 -2.8 + 2.3 .2.3 3.4+/- 3.2 3.2 0.1+/- 3.6; 3.6 Cs-134 -3.8+/- 3.6 ; 3.6 0.8+/-3.8 ;3.8 3.9+/- 3.5 ; 3.5 Cs-137 0.3+/- 3.3 ; 3.3 0.9+/-3.1 ;3.1 1.9+ 3.3 ; 3.3 Ba-140 -9.1+/- 11.4 ; 11.5 19.4+/- 11.2 ; 11.6 -6.2+/- 12.1 ; 12.2 La-140 2.6+/- 2.6 ; 2.6 -8.5+/- 3.7 ; 3.9 -3.3+/- 3.5 ; 3.5 III -27

LASALLE Table 7. Surface Water Collection: Monthly composites of weekly collections ODCM- Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration L-40 Illinois River Downstream 2003 Collection January February March Period Lab Code LSW-502 LSW-990 LSW-1489 Gross Beta 5.7 + 1.3 ;1.6 6.6+/- 1.2 ;1.6 7.3 1.3; 1.7 Mn-54 -1.3+/- 2.4 ;2.4 0.2+/- 1.6; 1.6 0.1 1.4; 1.4 Fe-59 6.1+ 4.3 ;4.4 1.4+/- 3.4; 3.4 -1.7+/- 2.5 ;2.5 Co-58 -1.0+ 1.5; 1.5 0.2+/- 1.7; 1.7 0.6+/- 1.5; 1.5 Co-60 0.1 +/- 2.2 ; 2.2 2.5+/- 1.9; 1.9 0.5+/- 1.7; 1.7 Zn-65 -2.7+/- 4.6; 4.6 -3.1+/- 3.7 ;3.7 -0.6+/- 3.0; 3.0 Zr-95 -0.6+/- 5.2; 5.2 1.3+/- 3.5; 3.5 -0.2+/- 3.2; 3.2 Nb-95 -2.1+/- 1.6; 1.6 -0.4+/- 1.7; 1.7 -1.4+/- 1.6; 1.6 Cs-134 -2.6+/-2.8; 2.8 -0.4+/- 1.7; 1.7 0.7+/- 1.7; 1.7 Cs-137 2.0+ 2.5 ;2.5 1.2+/- 1.8; 1.8 -0.8+/- 1.8 ; 1.8 Ba-140 9.9+/-7.1 ;7.3 -1.1+/-6.7 6.7 5.9+/- 4.9; 5.0 La-140 1.6+/- 2.5; 2.5 3.3+/- 1.8; 1.8 -1.5+/- 1.7; 1.7 2003 Collection April May June Period Lab Code LSW-2494 LSW-2960 LSW-3855 Gross Beta 5.4 +/- 1.4 ; 1.6 6.6+ 1.2 ; 1.6 4.8+/- 1.3; 1.5 Mn-54 0.6+/- 1.1 ; 1.1 -1.8+/- 1.9 ; 1.9 0.1+ 1.1 ; 1.1 Fe-59 2.1+/-2.6; 2.6 0.6+/- 3.3 ; 3.3 -1.2+ 2.2 ; 2.2 Co-58 2.4+/- 1.2 ; 1.2 0.7+/- 1.6; 1.6 -0.2+/- 1.2 ; 1.2 Co-60 1.8+/- 1.4 ; 1.5 0.6+/- 2.2 ; 2.2 0.3+/- 1.4; 1.4 Zn-65 -4.3+/- 3.3 ; 3.4 -0.4+/- 3.7 ; 3.7 -1.0+/- 2.4 ; 2.4 Zr-95 1.3+/- 3.7; 3.7 -2.2+/- 4.0 ; 4.0. -0.7+/- 2.2; 2.2 Nb-95 0.9+/- 1.4; 1.4 -0.5+/- 1.8 1.8 0.4+/- 1.0; 1.0 Cs-134 -0.4+/- 1.5 ; 1.5 -0.4+/- 2.3; 2.3 1.9+/- 1.2 ; 1.3 Cs-137 -0.7+/- 1.6 ; 1.6 0.1+2.2 ;2.2 0.2+/- 1.2 ; 1.2 Ba-140 2.4+/- 5.8; 5.8 3.4+/- 6.5 ; 6.5 -10.1+/- 4.1 ; 4.3 La-140 5.1 +/- 1.2; 1.4 3.5+/- 2.2 ; 2.2 -5.8+ 1.5 ; 1.7 III -28

LASALLE Table 7. Surface Water Collection: Monthly composites of weekly collections ODCM- Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr-95 = 30, Required LLDs: Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration L-40 Illinois River Downstream 2003 Collection July August September Period Lab Code LSW-4378 LSW-5075 LSW-5569 Gross Beta 4.4 1.4; 1.6 5.3:+/- 1.2 ;1.4 5.0+/- 1.1 ;1.3 Mn-54 -0.1+/- 2.7; 2.7 -1.4+/- 2.4; 2.4 1.0+/- 1.6; 1.6 Fe-59 -4.3+/- 5.5; 5.5 -1.3: 3.5 ; 3.5 0.2+/- 2.8; 2.8 Co-58 0.3: 3.5; 3.5 -1.8: 2.0 ;2.1 -0.6+/- 1.4; 1.4 Co-60 2.3+/- 3.4; 3.4 -0.2: 2.3; 2.3 1.1+/- 1.5; 1.5 Zn-65 0.9+/- 6.3; 6.3 0.3+/- 4.2; 4.2 0.5+/- 4.0; 4.0 Zr-95 4.4:+/- 5.6; 5.7 3.8:1 4.4 ;4.4 -3.2+/- 3.4; 3.4 Nb-95 0.1+/-3.0.3.0 -0.9+/- 1.8 ; 1.8 1.4+/- 1.5; 1.5 Cs-134 0.8+/- 3.0; 3.0 -2.0+/- 2.8; 2.8 1.0+/- 1.6; 1.6 Cs-137 -1.5+/-2.8 ;2.8 0.4+/- 2.0; 2.0 -0.3+/- 1.5; 1.5 Ba-140 7.8+/- 8.3; 8.4 2.5+/- 7.2 ;7.2 -5.3+/- 6.7; 6.7 La-140 3.3+/- 2.5; 2.5 -0.8+/- 3.2; 3.2 -0.7+/- 1.9; 1.9 2003 Collection October November December Period Lab Code LSW-6710 LSW-7354 LSWV-7729 Gross Beta 4.8+/- 1.1 ; 1.3 6.3+/-1.1 ;1.5 4.9 + 1.1; 1.3 Mn-54 0.1+/- 1.7 ; 1.7 -0.2+/- 2.2 ; 2.2 -4.5+/- 3.7 ; 3.7 Fe-59 -0.8+/- 3.6 ; 3.6 -1.1I3.3 ; 3.3 -2.9+/- 6.7 ; 6.7 Co-58 0.4+/- 1.6; 1.6 0.6+/- 1.9 ; 1.9 -3.1+/- 3.5 ; 3.6 Co-60 1.6+/- 1.6; 1.6 1.1+/- 2.2 ; 2.2 -2.6+/- 3.9 ; 3.9 Zn-65 1.6+ 3.6; 3.6 1.7+ 4.5 ; 4.5 -9.4+/- 9.0 ; 9.1 Zr-95 -3.9+/- 4.0; 4.1 -2.5+/- 4.4 ; 4.5 -11.4+/- 8.5; 8.7 Nb-95 0.5+/- 1.8; 1.8 0.1+/- 1.9; 1.9 -1.2 +/- 3.7; 3.8 Cs-134 -1.2+/- 1.9  ; 1.9 2.7+/- 2.4; 2.4 0.3+/- 3.6; 3.6 Cs-137 2.5+2.1 ;2.1 1.2+/-2.3 ;2.3 -0.9+/- 2.8 ; 2.8 Ba-140 -2.4+/-5.5 ;5.5 -10.1+/-8.2; 8.4 -13.3+/- 12.1 ; 12.2 La-140 -3.2+ 1.9  ; 1.9 3.2+/- 2.1 ; 2.2 5.5+/-4.1 ;4.2 III -29

LASALLE Table 7. Surface Water Collection: Quarterly composites of weekly collections Required LLD: H-3 = 200 pCi/L Units: pCi/L 2003 Sample Description and Concentration Collection Period Lab Code Tritium L-21 (C) Illinois River at Seneca I st Quarter LSW - 1463 1,340+/- 130;224 2nd Quarter LSW - 3640 247 +/- 90; 96 3rd Quarter LSW- 5549 434 + 99; 115 4th Quarter LSW - 7711 215+/- 90 ;94 L-40 Illinois River Downstream 1st Quarter LSW- 1464 1,6824 140;268 2nd Quarter LSW- 3641 205+/- 88;92 3rd Quarter LSW- 5550 401+/- 98;112

.4th Quarter LSW- 7712 268+ 92;99 III -30

LASALLE Table 8. Well Water Collection: Quarterly ODCM-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, Cs-134 = 15, Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Units: pCi/L Sample Description and Concentration L-27 LSCS Onsite Well at Station Date Collected 01-09-03 04-10-03 07-10-03 10-23-03 Lab Code LWW-162 LWW-1770,1 LWW-3891 LWW-6351 H-3 -16+/- 64 ;64 -18+/- 45 ;53 14+/- 84 ;84 35+/- 86;86 Mn-54 -0.1 +/-1.7; 1.7 0.9 +/-1.4; 1.4 -0.7 +/-1.6 1.6 -1.2 +/-2.2 ;2.2 Fe-59 -1.0 +/-2.7 2.7 -1.2 +/-2.6; 2.6 4.0 +/-3.1 ;3.2 -2.2 +/- 5.0; 5.0 Co-58 -0.8+/-1.4; 1.5 -0.6 +1.4 1.5 0.5 +1.9 ;2.0 2.2 +/-2.3 2.7 Co-60 0.6 +/-1.5; 1.4 -0.2 +/-1.5 1.4 0.9 +/-2.0; 1.9 -1.6 +/-2.7 ;2.3 Zn-65 -1.2 +/-3.7 ;3.7 -1.3 + 3.4 3.4 3.0+/-4.1 ;4.2 -3.9 +/- 4.2 4.3 Zr-95 0.9 +/-3.2; 3.2 1.2 +3.3 3.3 -5.5 +4.1; 4.2 1.1 +/-5.1; 5.1 Nb-95 -0.5 +/-1.9; 1.9 -2.4 +/-41.6; 1.6 0.3 +/-1.9; 1.9 -4.1 +/-2.8;2.9 Cs-134 1.4+/-1.5 ; 1.5 -1.1 +/- 1.4; 1.4 0.2 +2.5 ;2.5 -0.7 +/-2.3 ;2.3 Cs-137 -0.4 +/-1.7; 1.7 -0.3 4 1.6; 1.6 1.3 +/-2.0; 2.1 -1.0 +/-2.9; 2.9 Ba-140 -12.1 +/-5.7; 6.0 7.7 4 5.6 ;5.7 -0.4 +/-7.4; 7.4 3.2 +/-6.3; 6.3 La-140 -2.0+/- 1.8 ;1.8 1.0+/- 1.8 ;1.8 -1.6+2.1 ;2.1 0.6 +/-3.2 ;3.2 L-28 Marseilles Well Date Collected 01-09-03 04-10-03 07-10-03 10-09-03 Lab Code LWW-163 LWW-1772 LWW-3892 LWW-5911 H-3 -88+/- 60;61 -5 4 65 ; 65 -12+ 83 ;83 -45+/- 79;79 Mn-54 0.6 +/-1.5 ; 1.5 -1.7 +/- 3.4; 3.4 0.3 +/-1.7 ; 1.7 0.4 +/-1.8 ;1.8 Fe-59 -0.9 +/- 3.6 ; 3.6 1.1 46.9 ; 7.0 1.4 +/-2.5; 2.5 3.4 +/-3.5 ;3.5 Co-58 -0.9 +1.6; 1.9 0.3 +/-3.3; 4.3 0.3 +/-1.3 ;2.1 1.2 +/-1.8; 1.9 Co-60 0.5+1.9; 1.6 -0.8 +/-4.3; 3.3 0.7 +/-2.1 ; 1.3 0.3 +/-1.9; 1.9 Zn-65 0.5 +3.5 ; 3.5 4.1 +7.5 ;7.5 -2.2 +/-4.5; 4.5 -2.1 +/-4.1 ;4.1 Zr-95 0.1 +4.1 ;4.1 -4.4+/-7.1 ;7.2 -1.7 +/-3.8 ; 3.8 -5.7 +/-3.4 ;3.5 Nb-95 -1.0 + 1.9; 1.9 -3.6 +/-3.1 ; 3.1 2.0 +/-1.5; 1.6 -0.6 +/- 1.6; 1.6 Cs-134 -0.3 +1.8 ; 1.8 0.2 +/-4.0; 4.0 1.1 +/- 1.9; 1.9 0.8 +/-2.1 ;2.1 Cs-137 -0.7 +/-2.2; 2.2 3.5 43.5 ; 3.5 0.3 +/-2.1 ; 2.1 -0.1 +/-1.7; 1.7 Ba-140 1.1I7.4;7.4 -1.0 +/-11.7; 11.7 -3.5 +/-6.7 ; 6.7 -5.0 +/- 6.2 ; 6.2 La-140 0.2 +/-1.8 ;1.8 0.2+/-3.1 ;3.1 -3.9 +/- 2.4; 2.5 -2.3 +/- 2.0; 2.0

' Unable to collect on scheduled date of 10-09-03 or following week on 10-16-03; collector denied access to location.

III -31

LASALLE 5.0 MILCH ANIMALS,NEAREST LIVESTOCK, AND NEAREST RESIDENCES CENSUS m1I-32

LASALLE MILCH ANIMALS CENSUS, 2003 Cows Being Milked L-42 Vince Biros Farm 14.2 miles, Sector E 25%pasture 25% ground grain 50% green chop Census conducted by A. Lewis on August 25, 2003 III-33

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

Direction Distance Livestock No.

A N 4.0 miles 12 cattle B NNE 1.7 miles 20 cattle 3.5 miles 25 cows - cattle C NE ENE 3.8 miles 17 cattle D

E None None E

F ESE None None G SE 4.7 miles 21 cows - cattle SSE 4.7 miles 16 cows - cattle H

S 4.7 miles 8 cattle J

K SSW None None L SW 5.8 miles 15 cows M WSW None None W 3.0 miles 9 cows - cattle N

3.0 miles 12 cattle P WNW NW 4.0 miles 15 cows - cattle Q

R NNW 4.6 miles 5 cows - cattle Census conducted by A. Lewis on August 25,2003 m-34

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

Sector Direction Distance A N 3.9 miles B NNE 1.6 miles C NE 2.1 miles D ENE 3.3 miles E E 3.2 miles F ESE 1.4 miles G SE 1.7 miles H SSE 1.8 miles J S 1.5 miles K SSW 0.7 miles L SW 1.0 miles M WSW 1.5 miles N W 0.8 miles p WNW 0.9 miles Q NW 1.8 miles R NNW 1.7 miles Census conducted by A. Lewis on August 25, 2003 III-35

LASALLE 6.0 TLD DATA*

  • TLD Data provided by Exelon Nuclear.

III-36

Exelon Nuclear Environmental Site Report for LaSalle Gamma Radiation Measured in mR by TLDs Site Description Quarter I Quarter 2 Quarter 3 Quarter 4 2003 2003 2003 2003 I. INDICATOR LOCATIONS

a. Air Samplers L-01-1 NEARSITE NO. 1 27.0 22.0 23.0 28.0 L-01-2 NEARSITE NO. 1 24.0 23.0 23.0 25.0 L-03-1 ONSITE NO. 3 23.0 22.0 22.0 26.0 L-03-2 ONSITE NO. 3 23.0 22.0 22.0 26.0 L-04-1 RTE. 170 26.0 22.0 21.0 26.0 L-04-2 RTE. 170 23.0 22.0 21.0 25.0 L-05-1 ONSITE NO. 5 25.0 21.0 21.0 27.0 L-05-2 ONSITE NO. 5 23.0 22.0 19.0 26.0 L-06-1 NEARSITE NO. 6 24.0 24.0 24.0 28.0 L-06-2 NEARSITE NO. 6 24.0 24.0 23.0 26.0 L-07-1 SENECA 24.0 22.0 21.0 26.0 L-07-2 SENECA 24.0 23.0 22.0 26.0 L-08-1 MARSEILLES 24.0 23.0 21.0 27.0 L-08-2 MARSEILLES 23.0 21.0 23.0 26.0 L-11-1 RANSOM 19.0 21.0 19.0 23.0 L-11-2 RANSOM 19.0 20.0 18.0 23.0 Air Sampler Mean +/- S. D. 23.4 +/-2.1 22.1 +/-1.1 21.4 +/-1.7 25.9 +/-1.4 Annual Air Sampler Mean i S.D. 23.2 +/-2.3
b. Inner Ring (100 Series)

L-101-1 24.0 23.0 22.0 27.0 L-101-2 24.0 25.0 23.0 24.0 L-102-1 27.0 26.0 23.0 29.0 L-102-2 26.0 25.0 26.0 30.0 L-103-1 25.0 24.0 24.0 28.0 L-103-2 26.0 24.0 24.0 28.0 L-104-1 28:0 20.0 21.0 25.0 L-104-2 22.0 21.0 20.0 27.0 L-105-1 28.0 22.0 25.0 27.0 L-105-2 26.0 24.0 24.0 26.0 L-106-1 24.0 21.0 23.0 28.0 L-106-2 25.0 24.0 22.0 28.0 L-107-1 26.0 24.0 23.0 28.0 L-107-2 24.0 23.0 23.0 28.0 L-108-1 26.0 21.0 22.0 27.0 L-108-2 21.0 18.0 17.0 24.0 L-109-1 24.0 23.0 23.0 28.0 L-109-2 27.0 26.0 25.0 28.0 L-110-1 26.0 25.0 24.0 29.0 L-110-2 27.0 26.0 24.0 27.0 L-11118-1 26.0 26.0 23.0 28.0 L-111B-2 27.0 24.0 25.0 28.0 III-37

Exelon Nuclear Environmental Site Report for LaSalle Gamma Radiation Measured in mR by TLDs Site Description Quarter 1 Quarter 2 Quarter 3 Quarter 4 2003 - 2003 2003 2003

b. Inner Ring (100 Series)

L-1 12-1 24.0 23.0 22.0 24.0 L-1 12-2 25.0 25.0 22.0 26.0 L-1 13A-1 26.0 25.0 23.0 28.0 L-1 13A-2 27.0 24.0 22.0 26.0 L-1 14-1 26.0 26.0 23.0 26.0 L-1 14-2 26.0 23.0 23.0 25.0 L-115-1 22.0 23.0 20.0 24.0 L-115-2 20.0 20.0 20.0 23.0 L-1 16-1 21.0 21.0 22.0 25.0 L-1 16-2 24.0 22.0 19.0 23.0 Inner Ring Mean +/- S.D. 25.0 +/-2.0 23.3 +/-2.0 22.6 +/-1.9 26.6 +/-1.9 Annual Inner Ring Mean +/- S.D. 24.4 +/-2.5

c. Outer Ring (200 Series)

L-201-3 21.0 21.0 18.0 22.0 L-201-4 24.0 23.0 23.0 27.0 L-202-3 22.0 24.0 20.0 23.0 L-202-4 19.0 21.0 20.0 24.0 L-203-1 23.0 22.0 21.0 27.0 L-203-2 23.0 21.0 22.0 27.0 L-204-1 26.0 26.0 24.0 29.0 L-204-2 26.0 24.0 23.0 25.0 L-205-1 23.0 25.0 22.0 26.0 L-205-2 24.0 22.0 23.0 28.0 L-205-3 26.0 22.0 23.0 25.0 L-205-4 25.0 23.0 23.0 28.0 L-206-1 25.0 24.0 23.0 25.0 L-206-2 26.0 23.0 23.0 28.0 L-207-1 23.0 21.0 20.0 26.0 L-207-2 22.0 28.0 23.0 25.0 L-208-1 24.0 24.0 24.0 26.0 L-208-2 26.0 27.0 24.0 28.0 L-209-1 23.0 24.0 24.0 24.0 L-209-2 24.0 26.0 23.0 26.0 L-210-1 26.0 23.0 25.0 30.0 L-210-2 26.0 26.0 25.0 29.0 L-21 1-1 27.0 25.0 24.0 25.0 L-211-2 28.0 14.0 24.0 30.0 L-212-1 25.0 25.0 24.0 26.0 L-212-2 28.0 25.0 24.0 28.0 L-213-3 23.0 24.0 23.0 23.0 L-213-4 26.0 24.0 20.0 24.0 L-214-3 26.0 24.0 20.0 39.0 L-214-4 26.0 25.0 22.0 25.0 TII-38

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

L-215-3 28.0 25.0 24.0 26.0 L-215-4 27.0 25.0 24.0 29.0 L-216-3 26.0 24.0 23.0 28.0 L-216-4 26.0 24.0 22.0 24.0 Outer Ring Mean +/- S.D. 24.8 +/-2.1 23.6 i2.4 22.6 +/-1.7 26.6 +/-3.0 Annual Outer Ring Mean +/- S.D. 24.4 +/-2.8 INDICATOR LOCATION MEAN +/- S.D. 24.6 +/-2.1 23.2 +2.1 22.4 +/-1.8 26.5 +/-2.3 Annual INDICATOR MEAN +/- S.D. 24.2 +/-2.6 II. CONTROL LOCATIONS L-10-1 STREATOR 21.0 20.0 20.0 23.0 L-10-2 STREATOR 21.0 21.0 19.0 23.0 CONTROL LOCATION MEAN +/- S.D. 21.0 +/-0.0 20.5 +/-0.7 19.5 +/-0.7 23.0 +/-0.0 Annual CONTROL LOCATION MEAN +/- S.D. 21.0 +/-0.0 III-39

LASALLE 7.0 GRAPHS OF DATA TRENDS EE1-40

Air Particulates - Gross Beta L-01 Nearsite No. 1 10.0 8.0 6.0 C.)

"a 0

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

L-03 Onsite No. 3 E

C-,

a.

CI 9

W 0

01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 2. Continuous collection with weekly exchange of particulate filter.

m-41

Air Particulates - Gross Beta L-05 Onsite No. 5 10.0 8.0 M

6.0 C,'

9 LU CD 4.0 2.0 0.0 i-12-31-94 12-31-95 12-30-96 12-30-97 12-30-98 12-30-99 Figure 3. Continuous collection with weekly exchange of particulate filter.

L-06 Nearsite No. 6 10.0 8.0 E

V) 6.0 C,'

9eI 0 4.0 2.0 0.0 1-12-31-94 12-31-95 12-30-96 12-30-97 12-30-98 12-30-99 Figure 4. Continuous collection with weekly exchange of particulate filter.

111-42

Air Particulates - Gross Beta L-10 (C) Streator 10.0 8.0 -

E 6.0-C.)

? 4.0 -

2.0-0.0 12-31-94 12-31-95 12-30-96 12-30-97 12-30-98 12-30-99 Figure 5. Continuous collection with weekly exchange of particulate filter.

I1I-43

Surface Water - Gross Beta L-21 Illinois River at Seneca 10.0 8.0 6.0

-J 0.

4.0 2.0 0.0 +-

01.0 1-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 6. Monthly composites of weekly collections.

L-40 Illinois River Downstream 10.0 8.0 6.0 0.

4.0 0.0 1 1 i I I 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31 -03 Figure 7. Monthly composites of weekly collections.

mH-44

Surface Water-Tritium L-21(C) IIlinois River at Seneca 1400 - -

1300 - -

1200 - -

1100 - .

1000 - .

900 - .

800 - .

-j C. 700 -.

a.

600 - -

500- -

400 - -

300 - .

200 100 0-01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 8. Quarterly composites of weekly collections.

L-40 Illinois River Downstream 1600 +

1400 -

1200*

1000*

-j C.

a. 800 +

600 +

400+

200 -

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

IH-45

Well Water-Tritium L-27 LSCS Onsite Well at Station 500 400 300 200 100 0

-100

-200-01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 11. Quarterly collections.

L-28 Marseilles Well 500 400 300 200 100

-100 - \

-200-I 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 12-31-03 Figure 11. Quarterly collections.

mI-46

LASALLE APPENDIX IV INTERLABORATORY COMPARISON PROGRAM RESULTS IV-1

\XI

-vEnvirronmental, Inc.

Mdwest Laboratory an Agheny Technodoges Co.

- 70OLadwerrftad *NothbOOeKILC062Q (847)58440700 fall(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 Umes a year; the complete Appendix is included in March, June, September and December monthly progress reports only.

January, 2003 through December, 2003 IV-2

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

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

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

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

internal laboratory testing is also listed.

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

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

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

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

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

Attachment A lists acceptance criteria for 'spiked' samples.

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

IV-3

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

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

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

> 30 pCi/liter or kg 10% of known value Potassium-40 > 0.1 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 1s = (pCi!liter) =

169.85 x (known)00933

> 4,000 pCi/liter 10% of known value Radium-226,-228 0.1 pCi/liter 15% of known value Plutonium 0.1 pCi/liter, gram, or sample 10% of known value lodine-131, 55 pCi/liter 6.0 pCi/liter lodine-129b > 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/Titer 10% of known value Othersb 20% of known value a From EPA publication, 'Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-60014-81-004.

b Laboratory limit.

IV-4

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

Concentration (pCilL)

Lab Code Date Analysis Laboratory ERA Control Resultb Result' Limits STW-973 02/17/03 Sr-89 17.0 +/-0.5 15.9 +/- 5.0 7.2 - 24.6 S1W-973 02/17/03 Sr-90 8.9 +/- 0.3 9.0 +/- 5.0 0.4 - 17.7 STW-974 02/17/03 Ba-I 33 14.5 +/- 0.9 19.5 +/- 5.0 10.8 - 28.2 STW-974 02/17/03 Co-60 37.5 +/- 0.9 37.4 +/- 5.0 28.7 - 46.1 STW-974 02/17/03 Cs-134 18.2 +/- 0.6 17.8 +/-5.0 9.1 - 26.5 STW-974 02/17/03 Cs-137 42.7 +/- 1.0 44.2 +/- 5.0 35.5 - 52.9 STW-974 02/17/03 Zn-65 56.8 +/- 2.2 60.3 +/- 6.0 49.9 - 70.7 STW-975 d 02/17103 Gr. Alpha 18.4 +/-0.3 37.6 +/- 9.4 21.3 - 53.9 STW-975 02/17103 Gr. Beta 11.7 +/-0.5 8.6 +/- 5.0 0.0 - 17.2 STW-976 02/17/03 Ra-226 4.1 +/-0.1 4.7 +/- 0.7 3.5 - 6.0 S1W-976 02/17/03 Ra-228 7.6 +/- 0.5 6.5 +/- 1.6 3.7 - 9.3 STW-976 02/17/03 Uranium 52.9 +/- 1.9 53.7 +/- 5.4 44.4 - 63.0 STW-983 05/19103 H-3 1290.0 +/- 25.0 1250.0 +/- 331.0 678.0 - 1820.0 STW-984 05/19103 1-131 19.7 +/- 1.3 20.8 +/- 3.0 15.6 - 26.0 STW-985 05/19103 Gr. Alpha 54.4 +/- 3.0 70.3 +/- 17.6 39.9 - 101.0 STW-985 05/19/03 Ra-226 14.9 +/-0.2 16.5 +/-2.5 12.2 - 20.8 STW-985 05119/03 Ra-228 13.1 +/-0.6 10.3 +/- 2.6 5.8 - 14.8 STW-985 05/19/03 Uranium 14.5 +/- 0.4 15.1 +/-3.0 9.9 - 20.3 STW-986 05/19/03 Co-60 56.9 +/- 8.6 63.8 +/- 5.0 55.1 - 72.5 STW-986 e 05/19/03 Cs-1 34 61.6 +/- 6.6 75.7 +/- 5.0 67.0 - 84.4 STW-986 05/19/03 Cs-I 37 143.0 +/- 1.2 150.0 +/- 7.5 137.0 - 163.0 STW-986 05/19/03 Gr. Beta 309.0 +/- 2.7 363.0 +/- 54.5 269.0 - 457.0 STW-986 05/19103 Sr-89 33.1 +/-0.2 31.3 +/- 5.0 22.6 - 40.0 STW-986 05/19/03 Sr-90 28.8 +/-1.3 27.4 +/- 5.0 18.7 - 36.1 STW-988 08118/03 Ra-226 13.3 +/- 1.1 13.4 +/- 2.0 9.9 - 16.9 STW-988 08/18/03 Ra-228 11.5 +/- 1.0 12.5 +/- 3.1 7.1 - 17.9 STW-988 08118/03 Uranium 12.3 +/- 0.4 11.4 +/-3.0 6.2 - 16.6 STW-989 08/18/03 Ba-133 18.1 +/-1.9 20.7 +/- 5.0 12.0 - 29.4 STW-989 08/18/03 Co-60 35.9 +/-1.3 37.4 +/- 5.0 28.7 - 46.1 STW-989 08/18/03 Cs-134 32.6 +/- 1.8 32.6 +/- 5.0 23.9.- 41.3 STW-989 08/18/03 Cs-137 48.3 +/- 0.6 44.3 +/- 5.0 35.6 - 53.0 STW-989 08/18/03 Zn-65 58.9 +/- 2.1 60.2 +/- 6.0 49.8 - 70.6 STW-990 08/18/03 Gr. Alpha 41.8 +/- 3.4 56.2 +/- 16.3 36.9 - 93.3 STW-990' 08/18/03 Gr. Beta 51.3 +/- 3.0 31.6 +/- 5.0 22.9 - 40.3 STW-991 08/18/03 Sr-89 57.2 +/- 4.3 58.8 +/- 5.0 50.1 - 67.5 STW-991 08/18/03 Sr-90 21.2 +/- 0.9 20.6 +/- 5.0 11.9 - 29.3 IVi-I

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

Concentration (pCIL)

Lab Code Date Analysis Laboratory ERA Control Resultb Resultc Limits STW-997 11/18/03 Gr. Alpha 37.0 +/- 2.0 29.5 +/- 7.4 16.7 - 42.3 STW-997 11/18/03 Gr. Beta 26.5 +/- 0.8 26.3 +/- 5.0 17.6 - 35.0 STW-998 11/18/03 1-131 14.8 +/- 0.3 16.5 +/- 3.0 11.3 - 21.7 STW-999 11/18/03 Ra-226 17.2 +/-1.1 17.8 +/-2.7 13.2 - 22.4 STW-999 11/18/03 Ra-228 6.6 +/- 0.3 .6.8 +/- 1.7 3.8 - 9.7 STW-999 11/18/03 Uranium 11.7 +/-0.3 11.7 +/-3.0 6.5 - 16.9 STW-1000 11/18/03 H-3 15900.0 +/- 174.0 14300.0 +/- 1430.0 11800.0 - 16800.0 STW-1001 11/18/03 Gr. Alpha 32.9 +/- 0.3 54.2 +/- 3.0 30.7 - 77.7 STW-1001 11/18/03 Ra-226 16.5 +/- 0.9 16.1 +/-2.4 11.9 - 20.3 STW-1001 11/18/03 Ra-228 6.2 +/- 0.5 5.5 +/- 1.4 3.1 - 7.9 STW-1001 11/18103 Uranium 9.7 +/- 1.5 9.3 +/- 13.6 4.1 - 14.5 STW-1002 11118/03 Co-60 27.7 +/- 1.9 27.7 +/- 5.0 19.0 - 36.4 STW-1002 11/18/03 Cs-1 34 21.5 +/- 1.1 23.4 +/- 5.0 17.6 - 29.2 STW-1002 11/18103 Cs-137 66.3 +/- 2.8 64.2 +/- 5.0 55.5 - 72.9 STW-1002 11/18(03 Gr. Beta 159.0 +/- 2.5 168.0 +/- 5.0 124.0 - 212.0 STW-1002 11/18/03 Sr-89 48.5 +/- 0.4 50.4 +/- 5.0 41.7 - 59.1 STW-1002 11/18/03 Sr-90 10.1 +/-3.0 10.2 +/- 25.2 1.5 - 18.9

' Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the environmental samples

- crosscheck program operated by Environmental Resources Associates (ERA).

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

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

d Recount of the original sample still low. The ERA blank was spiked in the lab; known value of 20.1 pCilL, measured 21.5 +/- 1.1 pCVL. No explanation for ERA test failure.

° Lower bias observed for gamma spectroscopic analysis. The undiluted sample was reanalyzed; Results of reanalysis, Co-60: 62.3 pCUL., Cs-134: 69.2 pCVL., Cs-137: 152.3 pCVL.

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

Cs-137activity by gamma spectroscopy, 28.3 pCilL. Result of reanalysis; 29.3 pCVL.

IV1-2

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

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

2003-1 CaSO4: Dy Cards 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 818/2003 Reader 1, 180 2.08 2.11 +/- 0.22 1.46 - 2.70 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,30 75.00 84.40 +/- 4.87 52.50 - 97.50 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,60 18.75 19.11 +/- 1.86 13.13 - 24.38 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,60 18.75 22.82 +/- 5.41 13.13 - 24.38 2003-1 CaSO4: Dy Cards 818/2003 Reader 1,90 8.33 9.05 +/- 1.17 5.83 - 10.83 2003-1 CaSO4: Dy Cards 8/8/2003 Reader 1,90 8.33 7.60 +/- 1.08 5.83 - 10.83 Environmental. Inc.

2003-2 CaSO4: Dy Cards 1/1212004 Reader 1,30 61.96 73.50 +/- 2.58 43.37 - 80.55 2003-2 CaSO4: Dy Cards 1/12/2004 Reader 1, 60 15.49 19.70 +/- 0.51 10.84 - 20.14 2003-2 CaSO4: Dy Cards 1/1212004 Reader 1, 60 15.49 16.93 +/- 1.37 10.84 - 20.14 2003-2 CaSO4: Dy Cards 1112/2004 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 IV2-1

TABLE IV-3. In-House "Spike" Samples Concentration (pCi/L)a Lab Code Sample Date Analysis Laboratory results Known Control Type 2s, n=1 b Activity Limitsc SPW-356 water 1/2/2003 Sr-90 34.04 +/- 1.57 30.93 24.74 - 37.12 W-10303 water 1/3/2003 Gr. Beta 63.24 +/- 1.20 63.90 53.90 - 73.90 W-1 1303 water 1/13/2003 Gr. Beta 59.75 +/- 1.10 63.90 53.90 - 73.90 W-12103 water 1/21/2003 Gr. Beta 61.56 +/- 1.59 63.99 53.99 - 73.99 SPAP-446 Air Filter 1/31/2003 Gr. Beta 1.49 +/- 0.02 1.52 -8.48 - 11.52 SPW-468 water 1/3112003 H-3 95982.00 +/- 865.00 89607.00 71685.60 - 107528.40 W-20703 water 2/7/2003 Fe-55 9095.00 +/- 114.00 10587.00 8469.60 - 12704.40 SPU-1347 Urine 3/112003 H-3 1724.00 +/-412.00 1784.33 1101.27 - 2467.39 DW-30303 water 3/312003 Gr. Beta 65.44 +/- 0.59 63.90 53.90 - 73.90 SPCH-964 Charcoal 3/8/2003 1-1 31(G) 73.37 +/- 0.28 69.45 59.45 - 79.45 SPMI-1 086 Milk 3/13/2003 Cs-1 37 57.18 +/- 8.03 49.50 39.50 - 59.50 SPMI-1086 Milk 3/13/2003 1-131 75.13 +/- 12.01 67.60 54.08 - 81.12 SPMI-1 086 Milk 3/13/2003 1-1 31 (G) 65.81 +/- 1.06 67.56 57.56 - 77.56 SPW-1088 water 3/13/2003 Co-60 27.16 +/- 4.79 28.20 18.20 - 38.20 SPW-1 088 water 3/13/2003 Cs-1 37 51.74 +/- 9.15 49.50 39.50 - 59.50 SPW-1 088 water 3/13/2003 1-1 31 (G) 68.14 +/- 12.92 67.60 57.60 - 77.60 SPW-1 088 water 3/13/2003 1-131 76.94 +/- 1.13 67.56 54.05 - 81.07 SPVE-11 10 Vegetation 3/14/2003 1-1 31 (G) 122.80 +/- 16.80 124.00 111.60 - 136.40 SPW-1 194 water 3/21/2003 Co-60 31.09 +/- 6.28 28.15 18.15 - 38.15 SPW-1 194. water 3/2112003 Cs-1 37 55.11 +/- 0.13 49.50 39.50 - 59.50 SPW-1 194 water 3/21/2003 1-1 31 (G) 66.17 +/- 9.15 67.60 57.60 - 77.60 W-32103 water 3/21/2003 C-14 5201.00 +/- 16.60 4966.00 2979.60 - 6952.40 SPCH-1 429 Charcoal 4/1/2003 1-1 31 (G) 8.83 +/-0.11 9.18 -0.82 - 19.18 W-40103 water 4/1/2003 Gr. Beta 67.74 +/- 0.52 63.39 53.39 - 73.39 SPF-1 407 Fish 4/212003 Cs-1 34 0.58 +/- 0.03 0.59 0.35 - 0.83 SPF-1 407 Fish 4/2/2003 Cs-1 37 1.29 +/- 0.06 1.32 0.79 - 1.85 SPAP-1409 Air Filter 4/2/2003 Gr. Beta 1.44 +/- 0.02 1.51 -8.49 - 11.51 SPU-41 203 Urine 4/12/2003 H-3 1798.50 +/- 409.30 1784.33 1101.27 - 2467.39 SPU-41703 Urine 4/17/2003 H-3 1625.10 +/- 401.30 1784.33 1101.27 - 2467.39 SPW-2022 water 4/25/2003 H-3 89007.00 +/- 798.00 88463.00 70770.40 - 106155.60 SPW-2053 water 4/28/2003 Cs-1 37 45.70 +/- 9.44 49.35 39.35 - 59.35 SPW-2053 water 4/28/2003 Sr-90 47.51 +/- 1.87 44.47 35.58 - 53.36 SPMI-2055 Milk 4/28/2003 Cs-1 37 61.65 +/- 7.17 65.80 55.80 - 75.80 SPMI-2055 Milk 4/28/2003 Sr-90 38.45 +/- 1.59 44.74 35.79 - 53.69 W-50603 water 5/6/2003 Gr. Beta 70.95 +/- 0.53 63.39 53.39 - 73.39 W-60303 water 6/3/2003 Gr. Beta 63.00 +/- 0.51 65.73 55.73 - 75.73 SPW-3960 water 7/15/2003 H-3 88700.00 +/- 822.00 87369.00 69895.20 - 104842.80 SPMI-401 9 Milk 7118/2003 Cs-1 37 47.17 +/- 7.22 49.11 39.11 - 59.11 SPMI-4019 Milk 7/18/2003 Sr-89 40.95 +/- 4.88 49.49 39.49 - 59.49 SPMI-4019 Milk 7/18/2003 Sr-90 45.30 +/- 1.73 44.24 35.39 - 53.09 SPW-4023 water 7/18/2003 Cs-1 37 51.92 +/- 6.24 49.11 39.11 -59.11 SPW-4023 water 7/1812003 Sr-89 42.49 +/- 10.23 49.49 39.49 - 59.49 SPW-4023 water 7118/2003 Sr-90 49.69 +/- 3.04 44.24 35.39 - 53.09 SPW-4518 water 818/2003 Fe-55 8176.00 +/- 107.00 9330.00 7464.00 - 11196.00 IV3-1

TABLE IV-3. In-House "Spike' Samples Concentration (pCi/L)

Lab Code Sample Date Analysis Laboratory results Known Control Type 2s, n=1b Activity Limits' SPW-6197 water 10/16/2003 Tc-99 540.14 +/-54.00 539.73 377.81 - 701.65 SPAP-3958 Air Filter 10128/2003 Gr. Beta 1.45 +/- 0.02 1.50 -8.50 - 11.50 SPW-6401 water 10/28/2003 H-3 84867.00 +/- 826.00 85984.00 68787.20 - 103180.80 SPAP-6403 Air Filter 10128/2003 Gr. Beta 1.71 +/- 0.02 1.49 -8.51 - 11.49 SPF-6418 Fish 10/28/2003 Cs-134 0.50 +/- 0.02 0.49 0.29 - 0.69 SPF-6418 Fish 10/28/2003 Cs-137 1.37 +/- 0.05 1.30 0.78 - 1.82 SPW-6421 water 10/28/2003 Fe-55 104.18 +/- 1.26 88.18 68.18 - 108.18 SPMI-7459 Milk 12/12/2003 Cs-134 41.06 +/- 2.45 41.88 31.88 -51.88 SPMI-7459 Milk 12/12/2003 Cs-137 48.48 +/- 4.99 48.64 38.64 - 58.64 SPMI-7459 Milk 12/12/2003 Sr-89 55.94 +/- 4.12 65.80 52.64 -78.96 SPMI-7459 Milk 12/12/2003 Sr-90 41.86 +/- 1.57 43.80 35.04 -52.56 SPW-7461 water 12/12/2003 Cs-134 44.07 +/- 1.49 41.88 31.88 - 51.88 SPW-7461 water 12/12/2003 Cs-137 50.26 +/- 2.67 48.64 38.64 -58.64 SPW-7461 water 12/12/2003 Sr-89 56.41 +/- 4.87 65.80 52.64 - 78.96 SPW-7461 water 12/1212003 Sr-90 48.44 +/- 1.84 43.80 35.04 - 52.56 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 "Blank" Samples Concentration (pC/L)a Lab Code Sample Date Analysis Laboratory results (4 .66a) Acceptance Type LLD Activityb Criteria (4.66 a)

SPW-357 water 1/2/2003 Sr-90 0.50 0.12 +/- 0.25 1 W-1 0303 water 1/3/2003 Gr. Beta 0.12 0.022 +/- 0.10 3.2 W-1 1303 water 1/13/2003 Gr. Beta 0.14 0.035 +/- 0.10 3.2 W-12103 water 1/21/2003 Gr. Beta 0.12 0.029 +/- 0.09 3.2 SPAP-447 Air Filter 1131/2003 Gr. Beta 0.00 -0.0034 +/- 0.00 3.2 SPW-469 water 1/31/2003 H-3 160.20 19.3 +/- 80.30 200 W-201 03 water 2/1/2003 Gr. Beta 0.17 0.0 +/- 0.12 3.2 W-20703 water 217/2003 Fe-55 802.00 149 +/-498.00 1000 DW-30303 3/312003 Gr. Beta 0.15 0.007 +/- 0.11 3.2 SPCH-965 Charcoal Cani: 3/8/2003 1-131(G) 0.01 9.6 SPMI-1087 Milk 3/13/2003 Cs-1 34 7.49 10 SPMI-1 087 Milk 3/13/2003 Cs-1 37 7.90 10 SPMI-1087 Milk 3/13/2003 1-1 31 0.33 -0.013 +/- 0.18 0.5 SPMI-1 087 Milk 3/13/2003 1-131(G) 7.76 20 SPW-1089 water 3/13/2003 Co-60 4.48 10 SPW-1089 water 3/13/2003 Cs-134 5.60 10 SPW-1 089 water 3/13/2003 Cs-1 37 4.32 10 SPW-1089 water 3/13/2003 1-131 0.29 -0.050 +/- 0.16 0.5 SPVE-1111 Vegetation 3/14/2003 1-1 31 (G) 7.53 20 W-32103 water 3/21/2003 C-14 17.50 -0.4 +/- 9.200 200 SPCH-1430 Charcoal Cani: 411/2003 1-131(G) 0.01 9.6 W-401 03 water 4/1/2003 Gr. Beta 0.14 -0.11 +/- 0.100 3.2 SPF-1408 Fish 4/2/2003 Cs-1 34 0.01 100 SPF-1408 Fish 4/2/2003 Cs-1 37 0.01 100 SPAP-1410 Air Filter 4/2/2003 Gr. Beta 0.00 -0.0029 +/- 0.002 3.2 SPU-41 203 Urine 4/1212003 H-3 653.99 542.28 +/- 364.780 200 SPU-41 703 *Urine 4117/2003 H-3 648.35 100.1 +/- 344.800 200 SPW-2054 water 4/28/2003 Cs-1 37 3.16 10 SPW-2054 water 4128/2003 Sr-89 0.55 0.45 +/- 0.50 5 SPW-2054 water 4/28/2003 Sr-90 0.55 0.072 +/- 0.260 1 SPMI-2056 Milk 4/28/2003 Sr-90 0.77 0.66 +/- 0.430 I SPMI-2056 Milk 4/28/2003 Cs-1 37 2.74 10 SPMI-2056 Milk 4/28/2003 1-131(G) 3.54 20 W-50603 water 5/6/2003 Gr. Beta 0.12 0 +/- 0.090 3.2 W-60303 water 6/3/2003 Gr. Beta 0.14 -0.035 +/- 0.095 3.2 SPW-3960 water 7/15/2003 H-3 156.60 53.4 +/- 80.200 200 SPMI-4018 'Milk 7118/2003 Cs-1 37 4.10 10 SPMI-4018 Milk 7/18/2003 Sr-89 0.73 0.39 +/- 0.880 5 SPMI-4018 c Milk 7/1812003 Sr-90 0.51 0.93 +/- 0.340 1 SPW-4024 water 7/18/2003 Sr-89 0.83 0.21 +/- 0.730 5 SPW-4024 water 7/18/2003 Sr-90 0.62 0.09 +/- 0.300 1 SPW-451 9 water 8/8/2003 Fe-55 527.00 87 +/- 369.000 1000 SPW-6401 water 10/28/2003 H-3 163.80 -23.8 +/- 85.000 200 IV4-1

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

SPAP-6404 Air Filter 10128/2003 Gr. Beta 0.87 -0.99 +/- 0.440 3.2 SPF-641 9 Fish 10/28/2003 Cs-1 34 0.01 100 SPF-6419 Fish 10/28/2003 Cs-137 0.01 100 SPMI-7460 Milk 12/1212003 Cs-1 34 4.52 10 SPMI-7460 Milk 12/12/2003 Cs-1 37 5.77 10 SPMI-7460c Milk 12/1212003 Sr-90 0.50 1.26 +/- 0.370 I

' Liquid sample results are reported in pCiVLiter, air filters( pCi/filter), charcoal (pCVcharcoal canister), and solid samples (pCi/kg).

b The activity reported is the net activity result.

I Low levels of Sr-90 are still detected in the environment A concentration of (1-5 pCVL) in milk is not unusual.

IV4-2

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis . First Result Second Result Result MI-24, 25 1/2/2003 K-40 1362.00 +/- 117.00 1377.00 +/- 188.00 1369.50 +/- 110.72 MI-24, 25 1/212003 Sr-90 1.45 i 0.40 2.21 +/- 0.50 1.83 +/- 0.32 CF-47, 48 1/2/2003 Gr. Beta 2.72 i 0.10 2.84 +/-0.10 2.78 +/- 0.07 CF-47,48 1/2/2003 K-40 2.61 +/- 0.31 2.32 +/- 0.12 2.47 +/- 0.17 AP-8827, 8828 1/2/2003 Be-7 0.06 + 0.01 0.05 +/- 0.02 0.05 +/- 0.01 AP-8869, 8870 1/2/2003 Be-7 0.04 +/- 0.02 0.05 i 0.02 0.05 +/- 0.01 MI-119, 120 1/8/2003 K-40 1351.90 +/- 116.10 1234.70 +/- 108.70 1293.30 +/- 79.52 MI-119, 120 1/8/2003 Sr-90 2.22 +/- 0.43 1.88 +/- 0.40 2.05 +/- 0.30 MI-213, 214 1/14/2003 K-40 1372.30 +/- 104.80 1303.80 +/- 109.10 1338.05 +/- 75.64 Ml-213. 214 1/14/2003 Sr-90 1.81 +/-O.41 2.29 +/- 0.45 2.05 +/- 0.31 Ml-262, 263 1/15/2003 K-40 1399.20 +/- 200.70 1347.70 +/- 126.40 1373.45 +/- 118.59 S-696, 697 1/29/2003 Gr. Alpha 24.70 +/- 4.89 23.23 +/- 4.64 23.97 +/- 3.37 S-696, 697 1/29/2003 Gr. Beta 22.89 +/- 2.67 22.71 +/-2.73 22.80 +/- 1.91 MI-448, 449 2/3/2003 K-40 1159.70 +/- 157.90 1396.40 +/- 106.20 1278.05 +/- 95.15 SW-470, 471 2/3/2003 Gr. Beta 13.62 +/- 1.23 15.21 +/- 1.21 14.42 +/- 0.86 SW-470, 471 2/3/2003 K-40 (ICP) 5.10 +/- 0.51 5.20 +/- 0.52 5.15 +/- 0.36 SW-470, 471 2/3/2003 K-40 5.80 +/- 0.51 5.90 +/- 0.52 5.85 +/- 0.36 MI-517, 518 2/4/2003 K-40 1437.70 +/- 125.50 1357.70 +/- 188.00 1397.70 +/- 113.02 MI-541, 542 2/5/2003 K-40 1443.00 +/- 194.80 1385.20 +/- 190.10 1414.10 +/- 136.09 Ml-620, 621 2/11/2003 K-40 1294.70 +/- 115.10 1234.10 +/- 165.10 1264.40 +/- 100.63 DW-922, 923 3/4/2003 1-131 0.67 +/- 0.16 0.79 +/- 0.16 0.73 +/- 0.11 CF-1048, 10 4 9b 3/10/2003 K-40 3.09 +/- 0.12 2.67 +/- 0.07 2.88 +/- 0.07 LW-1152, 1153 3/13/2003 H-3 1147.26 +/- 122.56 1094.42 +/- 120.92 1120.84 +/- 86.09 F-1120, 1121 3/14/2003 Cs-137 0.04 +/- 0.02 0.05 +/- 0.01 0.05 +/- 0.01 F-1120, 1121 3/14/2003 Gr. Beta 2.04 +/- 0.06 2.11 +/- 0.06 2.08 +/- 0.04 F-1120,1121 3/14/2003 K-40 1.93 +/- 0.38 1.89 +/- 0.25 1.91 +/- 0.23 DW-1278, 1279 3/2512003 1-131 0.37 +/- 0.22 0.34 +/- 0.29 0.36 +/- 0.18 SO-1380, 1381 3/25/2003 Gr. Beta 18.60 +/- 2.68 20.53 +/- 2.83 19.57 +/- 1.95 LW-1299, 1300 3/27/2003 Gr. Beta 2.35 +/- 0.55 2.48 +/- 0.56 2.42 +/- 0.39 LW-1320, 1321 3/27/2003 H-3 487.12 +/- 104.43 422.00 +/- 102.00 454.56 +/- 72.99 W-1403,1404 3/3112003 Sr-90 0.96 +/- 0.32 1.10 +/- 0.42 1.03 +/- 0.26 AP-2019, 2020 3/31/2003 Be-7 0.07 +/- 0.01 0.08 +/- 0.01 0.07 +/- 0.01 MI-1422, 1423 4/11/2003 K-40 1410.00 +/- 176.00 1340.00 +/- 114.00 1375.00 +/- 104.85 Ml-2170, 2171 4/1/2003 K-40 1452.30 +/- 129.10 1472.50 +/- 191.00 1462.40 +/- 115.27 MI-1422, 1423 412/2003 Sr-90 1.84 +/- 0.42 1.15 +/- 0.39 1.50 +/- 0.29 AP-1633, 1634 4/2/2003 Be-7 0.05 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 AP-1871, 1872 4/2/2003 Be-7 0.07 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 AP-1974, 1975 4/2/2003 Be-7 0.08 +/- 0.02 0.07 +/- 0.02 0.08 +/- 0.01 LW-1828, 1829 4/11/2003 Gr. Beta 2.49 +/- 0.58 3.42 +/- 0.63 2.96 +/- 0.43 S-1544, 1545 4/15/2003 K-40 15.84 +/- 2.36 15.41 +/- 2.02 15.63 +/- 1.55 DW-1913, 1914 4/15/2003 1-131 0.29 +/- 0.21 0.42 +/- 0.19 0.36 +/- 0.14 MI-1996, 1997 4/21/2003 Sr-90 2.05 +/- 0.74 3.25 +/- 0.91 2.65 +/- 0.58 MI-1996,1997 4/22/2003 K-40 1580.20 +/- 118.90 1602.10 +/- 120.40 1591.15 +/- 84.61 IV5-1

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCVL)a Averaged Lab Code Date Analysis First Result Second Result Result LW-2063, 2064 4/28/2003 Gr. Beta 2.33 +/- 0.66 2.68 +/- 0.60 2.51 +/- 0.45 SWU-2275, 2276 4/28/2003 Gr. Beta 3.62 +/- 0.67 4.60 +/- 0.71 4.11 +/-0.49 G-2149, 2150 4/30/2003 Be-7 0.71 +/- 0.19 0.69 i 0.20 0.70 +/-0.14 TD-2339, 2340 5/1/2003 H-3 221.00 +/- 91.00 161.00 +/- 88.00 191.00 +/- 63.29 S0-2381, 2382 5/1/2003 Cs-137 0.11 +/- 0.03 0.10 +/- 0.02 0.10 +/- 0.02 SO-2381, 2382 5/1/2003 Gr. Alpha 11.14 +/- 5.15 10.39 +/- 5.60 10.77 +/- 3.80 SO-2381, 2382 5/1/2003 Gr. Beta 35.18 +/- 4.69 39.66 +/- 5.24 37.42 +/- 3.52 SO-2381, 2382 5/1/2003 K-40 18.29 +/- 0.84 17.83 +/- 0.84 18.06 +/- 0.59 SO-2381, 2382 5/1/2003 Sr-90 0.06 +/- 0.02 0.10 +/- 0.02 0.08 +/- 0.01 DW-2317, 2318 5/6/2003 1-131 1.77 +/- 0.27 1.47 +/- 0.26 1.62 +/- 0.19 BS-2595, 2596 5/6/2003 Cs-1 37 0.06 +/- 0.02 0.06 +/- 0.02 0.06 +/- 0.02 BS-2595, 2596 5/612003 K-40 13.74 +/- 0.62 14.10 +/-0.73 13.92 +/- 0.48 U-2484, 2485 5/9/2003 H-3 512.00 +/- 100.00 370.00 +/- 95.00 441.00 +/- 68.97 S0-2645, 2646 5/14/2003 Be-7 1.18 +/- 0.42 1.21 +/- 0.35 1.19 +/-0.27 S0-2645, 2646 5/1412003 Cs-137 0.11 +/- 0.04 0.09 +/- 0.05 0.10 +/- 0.03 S0-2645, 2646 5/14/2003 K-40 16.50 +/- 1.13 15.33 +/- 1.09 15.91 +/- 0.79 MI-2696, 2697 5119/2003 K-40 1320.40 +/- 124.50 1394.10 +/- 113.00 1357.25 +/- 84.07 MI-2696, 2697 5/19/2003 Sr-90 1.49 +/- 0.47 2.01 +/- 0.45 1.75 +/- 0.32 S0-2787, 2788 5/28/2003 Cs-137 0.27 +/- 0.04 0.23 +/- 0.04 0.25 +/- 0.03 SO-2787, 2788 5/28/2003 Gr. Beta 19.62 +/- 1.73 20.81 +/- 1.72 20.21 +/- 1.22 SO-2787, 2788 5/28/2003 K-40 14.77 +/- 1.02 14.41 +/- 1.00 14.59 +/- 0.71 MI-2840, 2841 5/2812003 K-40 1179.50 +/- 167.80 1401.70 +/- 120.20 1290.60 +/- 103.20 SWU-2864, 2865 5/28/2003 Gr. Beta 3.39 +/- 0.59 3.41 +/- 0.64 3.40 +/- 0.43 BS-2888, 2889 5129/2003 Cs-137 0.05 +/- 0.02 0.07 +/- 0.04 0.06 +/- 0.02 BS-2888, 2889 5/29/2003 K-40 9.70 +/- 0.83 10.17 +/- 0.87 9.93 +/- 0.60 W-3230, 3231 5/30/2003 Gr. Beta 4.33 +/- 1.00 3.28 +/- 1.22 3.81 +/- 0.79 TD-3036, 3037 6/2/2003 H-3 529.50 +/- 100.00 585.50 +/- 102.00 557.50 +/-71.42 SL-2909, 2910 b 6/3/2003 Gr. Beta 7.10 +/- 0.15 7.60 +/- 0.16 7.35 +/- 0.11 SL-2909, 2910 6/3/2003 K-40 3.90 +/- 0.67 3.49 +/- 0.52 3.70 +/- 0.42 SW-3080, 3081 6/10/2003 Gr. Alpha 4.63 +/- 1.90 4.47 +/- 1.71 4.55 +/- 1.28 SW-3080, 3081 6/10/2003 Gr. Beta 9.07 +/- 1.29 8.98 +/- 1.28 9.02 +/- 0.91 VE-3172, 3173 6/11/2003 K-40 2.62 +/- 0.35 3.17 +/- 0.58 2.90 +/- 0.34 F-3742, 3743 6/11/2003 Gr. Beta 3.47 +/- 0.13 3.71 +/- 0.14 3.59 +/-0.10 F-3742, 3743 6111/2003 K-40 2.94 +/- 0.39 2.70 +/- 0.40 2.82 +/- 0.28 S0-3325, 3326 6/13/2003 Gr. Beta 20.95 +/- 1.88 19.97 +/-2.01 20.46 +/- 1.38 Mi-3253, 3254 611712003 K-40 1329.40 +/- 121.80 1417.60 +/- 130.90 1373.50 +/- 89.40 MI-3297, 3298 6/17/2003 Sr-90 2.14 +/- 0.57 2.27 +/- 0.50 2.21 +/- 0.38 WW-3380, 3381 6123/2003 Gr. Beta 5.58 +/- 0.69 5.03 + 0.69 5.31 +/- 0.49 SWT-3403, 3404 6(24/2003 Gr. Beta 2.80 +/- 0.56 2.63 i 0.55 2.72 +/- 0.39 Ml-3424, 3425 6/24/2003 K-40 1422.80 +/- 185.40 1216.20 +/- 170.10 1319.50 +/- 125.80 SW-3862, 3863 6/24/2003 Gr. Beta 3.66 +/- 1.18 3.70 +/- 1.22 3.68 +/- 0.85 G-3479, 3480 6/25/2003 Be-7 1.52 +/- 0.25 1.43 +/- 0.28 1.47 +/- 0.19 G-3479, 3480 6/25/2003 K-40 5.02 +/- 0.45 5.10 +/- 0.48 5.06 +/- 0.33 LW-3809, 3810 6/30/2003 Gr. Beta 2.12 +/- 0.76 2.39 i 0.72 2.25 +/- 0.52 IV5-2

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result LW-3809, 3810 6/30/2003 H-3 2814.09 +/- 167.99 2812.17 +/- 167.94 2813.13 +/- 118.77 AP-4105,4106 6/30/2003 Be-7 0.07 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 G-3572, 3573 7/11/2003 Be-7 0.91 +/- 0.24 0.81 +/- 0.28 0.86 +/- 0.18 G-3572, 3573 7/1/2003 Gr. Beta 6.35 +/- 0.15 6.35 +/- 0.15 6.35 +/- 0.11 G-3572, 3573 7/1/2003 K-40 5.44 +/- 0.55 5.68 +/- 0.28 5.56 +/- 0.31 G-3572, 3573 7/1/2003 Sr-90 0.01 +/- 0.00 0.02 +/- 0.00 0.01 +/- 0.00 MI-3601, 3602 7/1/2003 K-40 1318.60 +/- 117.40 1435.10 +/- 117.80 1376.85 +/- 83.16 MI-3601, 3602 711/2003 Sr-90 0.86 +/- 0.51 1.74 +/- 0.60 1.30 +/- 0.39 AP-3933, 3934 7/1/2003 Be-7 0.07 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 AP-4061, 4062 7/212003 Be-7 0.07 +/- 0.01 0.08 +/- 0.01 0.08 +/- 0.01 AP-4147, 4148 7/212003 Be-7 0.08 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.01 AP-4084,4085 7/3/2003 Be-7 0.09 +/- 0.02 0.08 +/- 0.02 0.08 +/- 0.01 LW-3786, 3787 7/9/2003 Gr. Beta 2.13 +/- 0.56 2.93 +/- 0.62 2.53 +/- 0.42 WW-4168,4169 7/11/2003 Gr. Beta 3.79 +/- 1.87 4.48 +/- 1.98 4.14 +/- 1.36 CF-3975,3976 7/14/2003 Be-7 1.64 +/- 0.81 1.66 +/- 0.57 1.65 +/- 0.50 CF-3975, 3976 7/14/2003 K-40 6.54 +/- 0.75 6.19 +/- 0.50 6.36 +/- 0.45 MI-4020,4021 7/16/2003 K-40 1350.90 +/- 174.90 1199.80 +/- 153.20 1275.35 +/- 116.25 DW-4272, 4273 7/29/2003 Gr. Beta 2.35 +/- 0.92 2.29 +/- 0.89 2.32 +/- 0.64 SWU-4461, 4462 7/30/2003 Gr. Beta 2.28 +/- 0.44 1.93 +/- 0.43 2.10 +/-0.31 SL-4398, 4399 8/4/2003 Be-7 4.55 +/- 1.05 4.50 +/- 1.10 4.53 +/- 0.76 SL-4398, 4399 b 8/4/2003 Gr. Beta 3.41 +/- 0.12 3.12 +/- 0.11 3.27 +/- 0.08 SL-4398, 4399 8/4/2003 K-40 2.47 +/- 0.67 2.44 +/- 0.87 2.46 +/- 0.55 G-4419,4420 8/4/2003 Be-7 3.98 +/- 0.63 3.93 +/- 0.57 3.96 +/- 0.42 G-4419,4420 8/4/2003 Gr. Beta 5.38 +/- 0.14 5.35 +/- 0.16 5.37 +/- 0.11 G-4419,4420 8/4/2003 K-40 4.42 +/- 0.66 4.32 +/- 0.74 4.37 +/- 0.50 TD-4550,4551 8/4/2003 H-3 327.30 +/- 95.10 390.20 +/- 92.10 358.75 +/- 66.19 Mi-4482, 4483 8/6/2003 K-40 1301.40 +/- 115.20 1370.30 +/- 116.80 1335.85 +/- 82.03 MI-4482, 4483 8/6/2003 Sr-90 0.81 +/- 0.30 0.85 +/- 0.31 0.83 +/- 0.21 G-4526,4527 8/6/2003 Be-7 1.47 +/- 0.29 1.42 +/- 0.28 1.45 +/- 0.20 G-4526,4527 8/6/2003 K-40 5.42 +/- 0.56 5.21 +/- 0.63 5.31 i 0.42 SWU-4609,4610 816/2003 Gr. Beta 3.22 +/- 0.63 2.67 +/- 0.64 2.95 +/- 0.45 CW-4694, 4695 8/6/2003 Gr. Beta 1.48 +/- 0.34 1.09 +/- 0.34 1.29 +/- 0.24 CW-4694,4695 8/6/2003 H-3 22776.41 +/- 428.73 21831.75 +/- 420.10 22304.08 +/- 300.12 LW-4673,4674 8/13/2003 Gr. Beta 2.86 +/- 0.65 3.75 +/- 0.7i 3.30 +/- 0.48 MI-4735,4736 8/19/2003 K-40 1396.30 +/- 127.90 1410.10 +/- 120.20 1403.20 i 87.76 MI-4756, 4757 8/19/2003 Sr-90 1.66 +/- 0.47 1.53 +/- 0.44 1.60 +/- 0.32 VE-4832, 4833 8/20/2003 K-40 1.96 +/- 0.50 1.43 +/- 0.47 1.70 +/- 0.34 MI-4860,4861 8/26/2003 K-40 1312.10 +/- 191.80 1307.80 +/- 109.30 1309.95 +/- 110.38 SO-5082, 5083 8/28/2003 Cs-I 37 0.01 +/- 0.00 0.01 +/- 0.00 0.01 +/- 0.00 SO-5082, 5083 8/28/2003 Gr. Beta 20.02 +/- 1.84 20.92 +/- 2.03 20.47 +/- 1.37 CW-5349, 5350 8/31/2003 Gr. Beta 1.45 +/- 0.39 1.55 +/- 0.45 1.50 +/- 0.30 CW-5349, 5350 8/31/2003 H-3 24429.50 +/- 444.42 24744.25 +/- 447.18 24586.88 +/- 315.23 ME-4968,4969 9/2t2003 Gr. Beta 4.90 +/- 0.23 5.18 +/- 0.24 5.04 +/- 0.17 ME-4968, 4969 9/2t2003 K-40 2.46 +/- 0.41 2.68 +/- 0.37 2.57 +/- 0.28 IV5-3

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result DW-4989, 4990 9/2/2003 Gr. Beta 2.20 +/- 1.04 3.19 +/- 1.14 2.70 +/- 0.77 MI-5154, 5155 9/8/2003 K-40 1365.50 +/- 116.70 1456.70 +/- 119.10 1411.10 +/- 83.37 MI-5154, 5155 9/8/2003 Sr-90 1.19 +/- 0.39 1.39 +/- 0.39 1.29 +/- 0.28 AP-6177, 6178 9/29/2003 Be-7 0.07 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 SWU-5773, 5774 9/30/2003 Gr. Beta 2.55 +/- 0.63 2.83 +/- 0.60 2.69 +/- 0.44 AP-6102, 6103 9/30/2003 Be-7 0.07 +/- 0.01 0.05 +/- 0.01 0.06 +/- 0.01 G-5631, 5632 1011/2003 Be-7 1.88 +/- 0.48 2.21 +/- 0.40 2.05 +/- 0.31 G-5631, 5632 10/1/2003 Gr. Beta 5.87 +/- 0.09 5.85 +/- 0.08 5.86 +/- 0.06 G-5631, 5632 10/11/2003 K-40 5.24 +/- 0.77 5.26 +/- 0.58 5.25 +/- 0.48 SO-5660, 5661 10/1/2003 Cs-137 0.15 +/-0.04 0.16 +/- 0.05 0.16 +/- 0.03 S0-5660, 5661 1011/2003 Gr. Alpha 12.72 +/- 3.72 14.86 +/- 3.88 13.79 +/- 2.69 SO-5660, 5661 10/1/2003 Gr. Beta 32.42 +/- 3.09 33.60 +/- 3.04 33.01 +/- 2.17 sO-5660, 5661 10/1/2003 K-40 18.93 +/- 0.87 18.25 +/- 1.19 18.59 +/- 0.74 SO-5660, 5661 10/1/2003 Sr-90 0.03 +/- 0.01 0.03 +/- 0.01 0.03 +/- 0.01 AP-6334, 6335 10/1/2003 Be-7 0.06 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 AP-6363, 6364 10/2/2003 Be-7 0.07 +/- 0.02 0.07 +/- 0.02 0.07 +/- 0.01 MI-5794, 5795 10/6/2003 Sr-90 1.37 +/- 0.37 1.02 +/- 0.37 1.19 +/- 0.26 MI-5838, 5839 1018/2003 K-40 1364.30 +/- 124.10 1414.40 +/- 110.40 1389.35 +/- 83.05 MI-5838, 5839 10/8/2003 Sr-90 0.76 +/- 0.30 1.00 +/- 0.34 0.88 +/- 0.23 BS-5938, 5939 10/8/2003 Cs-1 37 0.18 +/- 0.03 0.20 +/- 0.05 0.19 +/- 0.03 BS-5938, 5939 10/8/2003 K-40 15.59 +/- 0.70 16.69 +/- 0.80 16.14 +/- 0.53 SS-5959, 5960 10/13/2003 K-40 7.49 +/- 0.42 7.29 +/- 0.63 7.39 +/- 0.38 MI-6011, 6012 10/13/2003 K-40 1165.20 +/- 118.70 1191.20 +/- 99.50 1178.20 +/- 77.44 MI-6034, 6035 10114/2003 Sr-90 0.86 +/- 0.33 0.90 +/- 0.34 0.88 +/- 0.24 VE-6055, 6056 10/15/2003 Gr. Beta 5.18 +/- 0.18 5.33 +/- 0.18 5.25 +/- 0.13 VE-6055, 6056 10/15/2003 K-40 5.31 +/- 0.57 4.52 +/- 0.51 4.92 +/- 0.38 Mi-6291, 6292 10/21/2003 K-40 1935.60 +/- 147.70 1936.10 +/- 116.50 1935.85 +/- 94.06 Mi-6291, 6292 10/21/2003 Sr-90 1.22 +/- 0.39 1.41 +/- 0.37 1.31 +/- 0.27 SS-6435, 6436 10/21/2003 Cs-137 0.05 +/- 0.02 0.05 +/- 0.03 0.05 +/- 0.02 SS-6435, 6436 10/21/2003 K-40 14.08 +/- 0.54 14.28 +/- 0.80 14.18 +/-0.48 CF-6313, 6314 10/22/2003 K-40 14.56 +/- 0.45 14.70 +/- 0.95 14.63 +/- 0.53 SO-6528, 6529 10/22/2003 Cs-137 0.15 +/- 0.03 0.16 +/- 0.05 0.16 +/- 0.03 SO-6528, 6529 10/22/2003 K-40 17.46 +/- 0.69. 17.90 +/- 1.05 17.68 +/- 0.63 S0-6393, 6394 10/25/2003 Cs-1 37 0.09 +/- 0.03 0.10 +/- 0.04 0.10 +/- 0.03 S0-6393, 6394 10/2512003 Gr. Beta 23.21 +/- 1.98 21.76 +/- 1.91 22.48 +/- 1.38 S0-6393, 6394 10/25/2003 K-40 13.98 +/- 0.80 14.57 +/- 0.86 14.27 +/- 0.59 SWT-6507, 6508 10/28/2003 Gr. Beta 2.64 +/- 0.52 2.63 +/- 0.53 2.63 +/- 0.37 DW-6647, 6648 10/31/2003 1-131 0.46 +/- 0.27 0.61 +/- 0.31 0.53 +/- 0.21 BS-6603, 6604 11/3/2003 Cs-137 9.03 +/- 0.82 8.60 +/- 1.13 8.82 +/- 0.70 BS-6603, 6604 1113/2003 Gr. Beta 26.83 +/- 1.94 27.18 +/- 1.95 27.01 +/- 1.38 S0-6670, 6671 11/5/2003 Cs-137 0.15 +/- 0.04 0.13 +/- 0.04 0.14 +/- 0.03 S0-6670, 6671 11/5/2003 K-40 12.96 +/- 0.66 12.95 +/- 0.72 12.96 +/- 0.49 S-7067, 7068 11/10/2003 Cs-137 0.21 +/- 0.05 0.19 +/- 0.08 0.20 +/- 0.05 MI-6818, 6819 11/11/2003 K-40 1695.50 +/- 129.80 1709.40 +/- 143.00 1702.45 +/- 96.56 IV5-4

TABLE IV-5. In-House "Duplicate' Samples Concentration (pCiIL)a Averaged Lab Code Date Analysis First Result Second Result Result Mi-6818, 6819 11/11/2003 Sr-90 2.01 +/-0.41 1.59 +/- 0.39 1.80 +/- 0.28 WL-6987, 6988 11/17/2003 Fe-55 603.49 +/- 53.32 619.65 +/- 53.97 611.57 +/- 37.93 SO-7156, 7157 11/21/2003 Cs-137 0.74 +/- 0.08 0.77 +/- 0.07 0.76 +/- 0.06 S0-7156, 7157 11/21/2003 Gr. Alpha 14.90 +/-4.24 19.25 +/-4.45 17.07 +/- 3.07 S0-7156, 7157 11/21/2003 Gr. Beta 22.97 +/-3.12 25.51 +/- 2.98 24.24 +/- 2.16 SO-7156, 7157 11/21/2003 K-40 12.51 +/- 1.06 12.94 +/- 1.07 12.73 +/- 0.75 S-7281, 7282 11/24/2003 Cs-137 0.82 +/- 0.15 1.16 +/- 0.20 0.99 +/- 0.12 SWU-7198, 7199 11/25/2003 Gr. Beta 2.60 +/- 0.53 2.54 +/- 0.55 2.57 +/- 0.38 DW-7221, 7222 11/25/2003 Gr. Beta 12.32 +/- 1.40 12.38 +/- 1.43 12.35 +/- 1.00 SW-7133, 7134 1211/2003 Gr. Beta 2.10 +/- 0.23 2.46 +/- 0.23 2.28 +/- 0.16 SW-7133, 7134 12/1/2003 K-40 1.50 +/- 0.15 1.40 +/- 0.14 1.45 +/- 0.10 W-7519, 7520 12/1/2003 Fe-55 3.03 +/- 0.65 3.12 +/- 0.64 3.08 +/- 0.46 SW-7805, 7806 12/1/2003 Sr-90 0.59 +/- 0.32 0.56 +/- 0.33 0.58 +/- 0.23 VE-7399, 7400 12/9/2003 Gr. Beta 4.99 +/- 0.15 5.24 +/- 0.15 5.11 +/- 0.11 VE-7399, 7400 12/9/2003 K-40 5.04 +/- 0.46 5.34 +/- 0.74 5.19 +/- 0.43 SW-7540, 7541 12/9/2003 Gr. Alpha 2.64 +/- 1.36 2.10 +/- 1.19 2.37 +/- 0.91 SW-7540, 7541 1219/2003 Gr. Beta 6.62 +/- 1.22 5.89 +/- 1.35 6.25 +/- 0.91 LW-7736, 7737 12126/2003 Gr. Beta 2.62 +/- 0.54 2.83 +/- 0.56 2.73 +/- 0.39 AP-7868, 7869 12/30/2003 Be-7 0.05 +/- 0.01 0.04 +/- 0.01 0.04 +/- 0.01 AP-7952, 7953 12/30/2003 Be-7 0.04 +/- 0.01 0.04 +/- 0.01 0.04 +/-0.01 AP-7994, 7995 12/31/2003 Be-7 0.05 +/- 0.02 0.05 +/- 0.01 0.05 +/- 0.01 Note: Duplicate analyses are performed on every twentieth sample received in-house. Results are not listed for those analyses with activities that measure below the LLD.

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

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

IV5-5

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

.b Concentrationb Known Control Lab Code Type Date Analysis Laboratory result Activity Limits' STW-972 water 12/01/02 Am-241 0.56 +/- 0.06 0.58 +/- 0.09 0.40 - 0.75 STW-972 water 12/01/02 Co-57 57.10 + 1.90 57.00 +/- 5.70 39.90 - 74.10 STW-972 water 12101/02 Co-60 38.30 + 0.60 38.20 +/- 3.82 26.74 - 49.66 STW-972 water 12/01/02 Cs-1 34 395.30 i 10.10 421.00 +/- 42.10 294.70 - 547.30 STW-972 water 12/01/02 Cs-1 37 316.40 +/- 5.30 329.00 +/- 32.90 230.30 - 427.70 STW-972 water 12/01/02 Fe-55 94.90 +/- 24.50 96.00 +/- 9.60 67.20 - 124.80 STW-972 water 12101/02 Mn-54 33.40 +/- 0.10 32.90 +/- 3.29 23.03 - 42.77 STW-972 water 12/01/02 Ni-63 123.80 +/- 5.50 136.50 +/- 13.70 95.55 - 177.45 STW-972 water 12/01/02 Pu-238 0.66 +/- 0.06 0.83 i 0.08 0.58 - 1.08 STW-972 water 12/01/02 Pu-239/40 0.001 +/- 0.001 0.000 +/- 0.000 0.000 - 0.005 STW-972 water 12/01/02 Sr-9o 13.80 +/- 1.00 12.31 +/- 1.23 8.62 - 16.00 STW-972 water 12101/02 Tc-99 128.10 +/- 3.80 132.00 +/- 13.20 92.40 - 171.60 STW-972 water 12/01/02 U-233/4 1.60 +/- 0.09 1.54 i0.15 1.08 - 2.00 STW-972 water 12/01/02 U-238 1.64 +/- 0.09 1.60 +/- 0.16 1.12 - 2.08 STW-972 water 12/01/02 Zn-65 540.40 +/- 9.90 516.00 £ 51.60 361.20 - 670.80 STSO-987 soil 01/01/03 Co-57 534.36 +/-2.61 530.00

  • 53.00 371.00 - 689.00 STSO-987 soil 01/01/03 Co-60 442.16 +/- 2.31 420.00 i 42.00 294.00 - 546.00 STSO-987 soil 01/01/03 Cs-134 211.00 +/- 2.30 238.00 +/- 23.80 166.60 - 309.40 STSO-987 soil 01/01/03 Cs-137 849.50 +/- 3.30 832.00 i 83.20 582.40 - 1081.60 STSO-987 soil 01/01/03 K-40 716.50 +/- 12.80 652.00 i 65.20 456.40 - 847.60 STSO-987 soil 01/01/03 Mn-54 148.76 +/- 2.84 137.00 i 13.70 95.90 - 178.10 STSO-987 soil 01/01/03 Ni-63 597.10 +/- 23.50 770.00 i 77.00 539.00 - 1001.00 STSO-987 soil 01/01/03 Pu-238 67.05 +/- 3.10 66.90 +/- 6.70 46.83 - 86.97 STSO-987 soil 01/01/03 Pu-239/40 52.80 +/- 3.60 52.70 i 5.30 36.90 - 68.50 STSO-987 soil 01/01/03 Sr-90 609.50 +/- 9.80 714.00 +/- 71.40 499.80 - 928.20 STSO-987 soil 01/01/03 U-233/4 99.50 +/- 7.60 89.00 +/- 8.90 62.30 - 115.70 STSO-987 soil 01/01/03 U-238 508.60 +/- 42.20 421.00 i 42.10 294.70 - 547.30 STSO-987 soil 01/01/03 Zn-65 492.70 +/- 28.10 490.00 +/- 49.00 343.00 - 637.00 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 Ail results are in Bq/kg or BqlL 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.

IV6-1

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

Concentrationa EML Control Lab Code Type Date -Analysis Laboratory results Result' Limits' STW-977 water 03/01/03 Gr. Alpha 304.30 i 53.10 377.50 0.58 - 1.29 STW-977 water 03/01/03 Gr. Beta 615.80 +/- 14.70 627.50 0.61 - 1.43 STW-978 water 03/01/03 Am-241 2.00 +/- 0.10 2.13 0.79 - 1.41 STW-978 water 03101/03 Co-60 221.30 +/- 1.20 234.00 0.80 - 1.20 STW-978 c water 03/01/03 Cs-134 23.30 +/- 1.10 30.50 0.80 - 1.30 STW-978 water 03/01/03 Cs-137 61.40 +/- 0.60 63.80 0.80 - 1.22 STW-978 e water 03/01/03 H-3 341.90 +/- 22.70 390.00 0.78 -2.45 STW-978 water 03/01/03 Pu-238 3.70 +/- 0.20 3.33 0.74 - 1.20 STW-978 water 03/01/03 Pu-239/40 4.40 +/- 0.10 3.92 0.79 - 1.20 STW-978 water 03/01/03 Sr-90 4.60 +/- 0.30 4.34 0.69 - 1.34 STW-978 water 03/01/03 Uranium 5.10 +/- 0.60 4.29 0.75 - 1.33 STSO-979 soil 03101/03 Ac-228 55.60 +/- 2.50 57.60 0.80 - 1.38 STSO-979 soil 03/01/03 Am-241 12.42 +/- 0.90 15.60 0.65 -2.28 STSO-979 soil 03/01/03 Bi-212 57.70 +/- 3.20 60.60 0.50 - 1.34 STSO-979 soil 03/01/03 Bi-214 60.40 +/- 3.20 67.00 0.78 - 1.42 STSO-979 soil 03/01/03 Cs-137 1416.80 +/- 70.00 1450.00 0.80 - 1.25 STSO-979 soil 03/01/03 K-40 653.80 +/- 11.90 636.00 0.80 - 1.32 STSO-979 soil 03/01/03 Pb-212 51.10 +/- 5.20 57.90 0.78 - 1.32 STSO-979 soil 03/01/03 Pb-214 64.70 +/- 5.10 71.10 0.76 -1.46 STSO-979 soil 03/01/03 Pu-239/40 24.40 +/- 0.30 23.40 0.71 - 1.30 STSO-979 soil 03101/03 Sr-90 54.50 +/- 2.60 64.40 0.67 - 2.90 STSO-979 soil 03/01/03 Uranium 245.00 +/- 1.50 249.00 0.71 - 1.32 STVE-980 Vegetation 03/01/03 Am-241 3.10 +/- 0.20 3.51 0.73 -2.02 STVE-980 Vegetation 03/01/03 Cm-244 1.40 +/- 0.50 2.01 0.61 - 1.59 STVE-980 Vegetation 03/01/03 Co-60 12.60 +/- 0.40 12.10 0.80 - 1.44 STVE-980 Vegetation 03/01/03 Cs-137 449.70 +/- 6.20 444.00 0.80 - 1.31 STVE-980 Vegetation 03/01/03 K-40 1159.00 +/- 38.60 1120.00 0.79 - 1.39 STVE-980 Vegetation 03/01/03 Pu-239/40 4.80 +/- 0.40 5.17 0.69 - 1.31 STVE-980 Vegetation 03101/03 Sr-90 659.70 +/- 50.40 650.00 0.55 - 1.21 STAP-981 Air Filter 03/01/03 Am-241 0.27 +/- 0.10 0.34 0.70 - 2.34 STAP-981 Air Filter 03/01/03 Co-60 30.20 +/- 0.30 33.50 0.80 - 1.26 STAP-981 Air Filter 03/01103 Cs-137 90.30 +/- 1.30 99.70 0.80 - 1.32 STAP-981 Air Filter 03/01/03 Mn-54 41.80 +/- 0.60 43.80 0.80 - 1.35 STAP-981 Air Filter 03/01103 Pu-238 0.52 +/- 0.10 0.52 0.67 - 1.33 STAP-981 Air Filter 03/01/03 Pu-239140 0.35 +/- 0.10 0.33 0.73 -1.26 STAP-981 Air Filter 03/01/03 Sr-90 2.50 +/- 0.10 2.80 0.53 - 1.84 STAP-981 Air Filter 03/01/03 Uranium 0.51 +/- 0.10 0.50 0.79 -2.10 STAP-982 Air Filter 03/01/03 Gr. Alpha 0.90 +/- 0.10 1.17 0.73 -1.43 STAP-982 Air Filter 03/01/03 Gr. Beta 1.50 +/- 0.10 1.50 0.76 - 1.36 lV7-1

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

Concentrationa EML Control Lab Code Type Date Analysis Laboratory results Resultb Limitsc STW-992 water 09/02103 Am-241 9.78 +/- 0.32 8.76 0.79 - 1.41 The September, 2003 results are preliminary. Control limits used were taken from the March, 2003 data.

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

STW-992 water 09/02/03 Co-60 468.30 +/- 4.10 513.00 0.80 - 1.20 STW-992 water 09/02/03 Cs-134 53.90 +/- 0.80 63.00 0.80 - 1.30 STW-992 water 09/02/03 Cs-1 37 76.10 +/- 1.40 80.30 0.80 - 1.22 STW-992 water 09/02/03 H-3 355.20 +/- 12.80 446.30 0.78 - 2.45 STW-992 water 09/02/03 Pu-238 1.71 +/- 0.07 2.07 0.74 - 1.20 STW-992 water 09102103 Pu-239/40 4.24 +/- 0.01 4.99 0.79 - 1.20-STW-992 water 09/02103 Sr-90 6.70 +/- 0.50 7.04 0.69 - 1.34 STW-992 water 09/02103 Uranium 6.03 +/- 0.14 5.69 0.75 - 1.33 STW-993 water 09/02103 Gr. Alpha 688.00 +/- 7.60 622.00 0.58 - 1.29 STW-993 water 09/02/03 Gr. Beta 1985.00 +/- 111.00 1948.00 0.61 - 1.43 STSO-994 soil 09/02/03 Am-241 19.70 +/- 1.50 18.40 0.65 - 2.28 STSO-994 soil 09/02/03 Cs-137 1928.00 +/- 19.00 1973.00 0.80 - 1.25 STSO-994 soil 09/02/03 K-40 533.00 +/- 79.00 488.00 0.80 - 1.32 STSO-994 soil 09/02/03 Pu-238 15.30 +/- 0.80 14.60 0.59 - 2.88 STSO-994 soil 09/02/03 Pu-239140 32.50 +/- 2.30 30.40 0.71 - 1.30 STSO-994 soil 09/02/03 Sr-90 69.80 +/- 2.30 80.30 0.67 - 2.90 STSO-994 soil 09/02/03 Uranium 228.30 +/- 17.10 259.30 0.71 - 1.32 STAP-995 Air Filter 09/02/03 Am-241 0.64 +/- 0.05 0.44 0.70 - 2.34 STAP-995 Air Filter 09/02/03 Co-60 48.50 +/- 0.40 55.10 0.80 - 1.26 STAP-995 Air Filter 09/02/03 Cs-137 51.20 +/- 1.10 54.80 0.80 - 1.32 STAP-995 Air Filter 09/02/03 Mn-54 53.70 +/- 1.10 58.00 0.80 - 1.35' STAP-995 Air Filter 09/02/03 Pu-238 0.24 +/- 0.05 0.23 0.67 - 1.33 STAP-995 Air Filter 09/02103 Pu-239/40 0.41 +/- 0.10 0.40 0.73 - 1.26 STAP-995 Air Filter 09102/03 Sr-90 1.90 +/- 0.10 2.06 0.53 - 1.84 STAP-995 Air Filter 09/02/03 Uranium 0.80 +/- 0.06 0.82 0.79 - 2.10 STAP-996 Air Filter 09/02/03 Gr. Alpha 3.23 +/- 0.07 3.11 0.73 - 1.43 STAP-996 Air Filter 09/02103 Gr. Beta 4.18 +/- 0.03 3.89 0.76 - 1.36 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.

c Control limits are reported by EML as the ratio of Reported Value I EML value.

d A low bias for Cs-1 34 activity has been observed in the past. No errors have been found in the library or efficiency.

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

' Reporting error.

IV7-2

LASALLE APPENDIX V ERRATA DATA V-1

11

11
1. The total release activity for Fission and Activation Gases listed for the 4th Quarter 2002 on Table 1.1-1 does not agree with the 4 th Quarter detailed data depicted within the 2002 Radioactive Effluent Release Report. On Table 1.1-1 the activity is listed as 3770 curies, while on the detailed data tables within the 2002 Radioactive Effluent Release Report, the activity for the same quarter is depicted as 3820 curies, which is the correct value. This error was duplicated in the Station's 2002 Annual Effluent Report submitted separately to the NRC on April 30, 2003.
2. Figure 5.0-4 incorrectly identifies sample L-36 as the "Illinois River Downstream of Discharge" where in fact the sample location is "upstream" of the station's river discharge. This sample location is correctly identified elsewhere in the report.
3. Table 5.0-2 indicates that the location for sample L-42 is the Biros Farm located 14.2 miles from the plant in Sector E. The land use census located in Appendix III indicates that the Biros Farm is located 12.6 miles from the plant in Sector E. The correct mileage for this location, according to the ODCM, is 14.2 miles.
4. The table of contents incorrectly denotes Appendix III as the "2001 REMP Sample Results" instead of the "2002 REMP Sample Results."

Additional review of the 2002 REOR report identified the following editorial issues:

1. Page I-22: L-04 designation should be Rte. 170.
2. Page 1-24: L-04 designation should be Rte. 170.
3. Page I-25: L-01 distance should be 1.5 miles and L-03 should be 1.0 miles.
4. Page 1-28: L-04 designation should be Rte. 170.