Text

Annual Radiological Environmental Operating Report
	ML041330115
Person / Time
Site:	LaSalle
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)
	v • d • e

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 Table 1.2-1 Table 2.0-1 Figure 3.1-1 Table 3.1-1 Table 3.2-1 Table 3.3-1 Table 3.4-1 Gaseous Effluents...................................

1-2 Liquid Effluents...................................

1-3 Solid Waste Shipped Offsite for Burial or Disposal..............

I-4

- Figure 3.1-4 Isodose and Concentration Contours....................................

1-5 Maximum Doses Resulting from Airborne Releases...............................................................................

I-9 Maximum Doses Resulting from Liquid Discharges...........................................................................

1-13 10CFR20 Compliance Assessment...................................

1-17 Maximum Doses Resulting from Airborne Releases Based on Concurrent Meteorological Data.............................. I-21 I-18 Environmental Monitoring Figure 5.0-1 Figure 5.0-2 Figure 5.0-3 Figure 5.0-4 Table 5.0-1 Table 5.0-2 Table 5.0 Inner Ring TLD Locations..............

........................ I-23 Outer Ring TLD Locations..............

........................ I-24 Fixed Air Sampling and TLD Sites......................................

I-25 Ingestion and Waterborne Exposure Pathway Sample Locations.....................................

I-26 Radiological Environmental Monitoring Locations.............................................................................

I-27 Radiological Environmental Monitoring Program, Sampling Locations and Sample Collection and Analyses..............................................................................

I-28 Table 5.0-6 Radiological Environmental Monitoring Program Quarterly Sum ary................................................................

S.1-34 APPENDIX II - METEOROLOGICAL DATA.............................................................

-1 APPENDIX III - 2003 REMP SAMPLE RESULTS..........................................................

I E-l 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.

2

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).

4

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 1 OCFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem).

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

5

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 CaF2 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/rn3), 1999 (0.027 pCi/m3), 2000 (0.028 pCi/rn3),

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

6

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.

7

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.

8

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, 4th Qtr -

Total Error % I I

Units 1st Qtr 1

2nd Qtr I

3rdQtr 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 l

I I

2. Average Release Rate uCiisec 4.50E+0O 2.90E+00 5.16E+00 4.67E+00

3. Pcrcent of i

Technical Specification L im it 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 NIA

2. Average Concentration Released uCi/ml

<LLD

3. Percent of Applicable Limit D. Gross Alpha 1.Total Activity Released (estimate)

Ci

<LLD

<LIZ_

<LLD

2. Average Concentration Released uCirnl

<LLD U)

L D

ULLD NLA

3. Percent of Applicable Limit I

lE.VolumeofLiquid Wasteto DischargeI liters I O.OOE+00 0.OOE+00 0

O.OOE+00 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 Estimated Cumulative Gamma Dose (in mrad) from the LaSaUeStAion forft period January-December 2003 Isopleth Labels Small figure - multiply by 104 Large figure - mulUply by 104O 000

/

10 I

,tf

/

~Otto" S

lioRtre 252 ITd74 cn<2>

\\

vI 9

icow It- --

t8

\\

to 20r7 2 ant

'-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 I no P o A0 35 oCm 3

l 1/

F Is e

20 m(X 2 ml I

===:f 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

/ c (

tong

/

5 10 15 20 m

\\

flt

_-50 n

to1 15 20 ml 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 1 O4 Large figure - muliply by 1O 3 52

/

oylo

/

Ilnois

/ Otto Old Stro ITp W~93-O 10 2 mtl I

d 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

)

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

(ESE )

(EBSE )

(ESE )

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

(WSW )

(WSW

)

SKIN 5.67E-02 6.75E-02 1.05E-01

.10OE-01 3.39B-01 (MREM)

(WSW )

ORGAN 5.91E-03 3.93E-01 8.05E-01 2.70E-01 1.47B+00 (MREM)

(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 )

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

(ESE )

TOT.

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

(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 )

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

)

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

(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

)

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

(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 )

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

(ESE )

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

(WSW )

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

(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 DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4 TR QUARTER OCT-DEC ANNUAL TOTAL 0.00E+00 0.00E+00 0.00E+00 0.OOE+00 0.00E+00 0.00F+00 0.OOE+00 0.00E+00 0.00E+00 0.0OE+00 BODY INTERNAL 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 CRIT. ORGAN(MREM) 5.0 0.00 0.00

'O 00 0.00 0.00 0.00 0.00 3.0 0.00 0.00 10.0 0.00 RESULTS BASED UPON:

ODCM ANNEX REVISION ODCM SOFTWARE VERSION ODCM DATABASE VERSION 3.0 MAY 2001 1.1 January 1995 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 DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 0.QOE+00 0.OOE+00 0.OOE+00 0.00E+00 0.00E+00 0.00E+00 0.OOE+00 0.00E+00 0.00E+00 0.00E+00 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 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.0 0.00 0.00 10.0 0.00 RESULTS BASED UPON:

ODCM ODCM ODCM ANNEX REVISION SOFTWARE VERSION DATABASE VERSION 3.0 MAY 2001 1.1 January 1995 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 DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN O.O0E+00 O.OOE+00 O.OOE+00 0.OOE+0O 0.OOE+00 O.OOE+00 0.OOE+00 0.OOE+00 O.00E+00 0.OOE+00 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 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.0 0.00 0.00 10.0 0.00 RESULTS BASED UPON:

ODCM ODCM ODCM ANNEX REVISION 3.0 MAY 2001 SOFTWARE VERSION 1.1 January 1995 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 DOSE TYPE 1ST QUARTER JAN-MAR 2ND QUARTER APR-JUN 3RD QUARTER JUL-SEP 4TH QUARTER OCT-DEC ANNUAL TOTAL BODY INTERNAL ORGAN 0.OOE+00 0.OOE+00 0.OOE+00 0.00E+00 0.00E+00 0.005+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 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 CRIT. ORGAN(MREM) 5.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 3.0 0.00 0.00 10.0 0.00 RESULTS BASED UPON:

ODCM ANNEX REVISION ODCM SOFTWARE VERSION ODCM DATABASE VERSION 3.0 MAY 2001 1.1 January 1995.

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 (DDE)

Organ Dose (CDE)

Plume 3.21E-01 Skyshine 3.1GE-01 Ground 2.09E-03 Total 6.41E-01 Thyroid 8.66E-01 Gonads 1.60E-02 Breast 1.61E-02 Lung 1.61E-02 Marrow 1.62E-02 Bone 1.63E-02 Remainder 1.68E-02 CEDE 4.18E-02 TEDE 6.83E-01 25.0 75.0 25.0 25.0 25.0 25.0 25.0 25.0 2.56 1.16 0.06 0.06 0.06 0.06 0.07 0.07 100.0 0.68

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

1st 2nd 3rd Qtr Qtr Qtr TEDE 4.68E-02 8.88E-02 6.07E-02 RESULTS BASED UPON: ODCM ANNEX REVISION ODCM SOFTWARE VERSION ODCM DATABASE VERSION LOCFR20 4th Qtr L

8.96E-02 0.2 3.0 MAY 2001 1.1 January 1995 1.1 January 1995 of imit 9

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 (DDE)

Skysh.

Grounc Organ Dose Thyroi (CDE)

Conadi Breast Lung Marrov 0.00E+00 Lne 2.86E-01 d

0.OOE+00 Total 2.86E-01 id 0.OOE+00 s

0.OOE+00

.OOE+O0

0. OOE+00 t

0.OOE+00 0.OOE+00 nder 0.OOE+00 0.00E+00 2.86E-01 25.0 75.0 25.0 25.0 25.0 25.0 25.0 25.0 100.0 1.14 0.00 0 100 0.00 0.00 0.00 0.00 0.00 0.29 Bone Remair CEDE TEDE 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 MAXINMU DOSES RESULTING FROM AIR8ORNE RELEASES 2003 FIRST QUARTER SECONO QUARTER THIRD QUARTER FOURTH QUARTER TYPE OF DOSE ANNUAL GAM AIR (mrad)

BETA AIR (mrad)

WHOLE BODY (mrem)

SKIN (mrem)

ORGAN (mrem) 5.800E-02fSSE) 9.350E-03( SE) 1.720E-02(ESE) 2.615E-02( SE) 5.200E-03( SE) 1.385E-01(WSW) 1.125E-02(WSW) 3.635E-02( SW) 4.715E-02( SW) 6.500E-03CWSW) 1.370E-O1(WSW) 1.145E-02(WSW) 4.005E-02(SSW) 4.740E-02(SSW)

S.OSOE-03(WSW) 1.015E-01( SE) 1.565E-02( SE) 3.070E-02(ESE) 4.600E-02( SE) 6.050E-03( SE) 3.537E-01(WSW) 3.844E-02( SE) 1.090E-01(SSW) 1.295E-OI(SSW) 1.734E-02( SE)

CRITICAL PERSON CRITICAL ORGAN Child Tkyroid Child Thyroid Child Thyroid Child Thyroid Child Thyroid COMPLIANCE STATUS TYPE OF DOSE GAMMA AIR (mrad)

BETA AIR (mrad)

WHOLE BODY (mrem)

SKIN (mremn)

ORGAN (mrem) 10-CFR 50 APP. I QUARTERLY OBJECTIVE 5.0 10.0 2.5 7.5 7.5 10 CFR 50 APP.I S OF APP. I YEARLY OBJECTIVE 2.77 0.16 1.60 0.63 0.08 10.0 20,0 5.0 15.0 15.0 X OF APP. I 3.54 0.19 2.18 0.86 0.12 CRITICAL PERSON Child CRITICAL ORGAN Thyroid Calculation used release data from the following:

Unit 1 & 2 - Chimney Date of calculation:

4/12/2004 Child Thyroid 1-21

Table 3.4-1 (continued)

LaSalle Station - Unit 2 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES 2003 FIRST QUARTER SECOND QUARTER THIRD QUARTER FOURTH QUARTER ANNUAL TYPE OF DOSE GAMIh AIR (mrad)

BETA AIR (mrad)

WHOLE BOGY (mrem)

SKIN (mrem)

ORGAN (mrem) 5.800E-02(SSE) 9.350E-03( SE) 1.720E-02(ESE) 2.615E-02( SE) 5.20GE-03( SE) 1.385E-01(WSW) 1.125E-02(WSW) 3.635E-02( SW) 4.715E-02( SW)

S6.500E-03(WSW) 1.370E-01(WSW) 1.145E-02(WSW) 4.OSE-02(SSW) 4.74DE-02(SSW) 5.050E-03(WSW) 1.015E-OI1 SE) 1.565E-02( SE) 3.070E-02(ESE) 4.600E-02( SE) 6.0SOE-03( SE) 3.537E-Q1(WSW) 3.844E-02( SE) 1.090E-01(SSW) 1.295E-O1(SSW) 1.734E-02( SE)

CRITICAL PERSON CRITICAL ORGAN Child Thyroid Child Thyroid Child Thyroid Child Thyroid Child Thyroid COMPLIANCE STATUS 10 CFR 50 APP. I 10 CFR 50 APP.I QUARTERLY OBJECTIVE X OF APP. I YEARLY OBJECTIVE I OF APP. I TYPE OF DOSE GAIA AIR (mrad)

BETA AIR (mrad)

WHOLE BODY (mrem)

SKIN (tmrem)

ORGAN (mrem) 5.0 10.0 2.5 7.5 7.5 2.77 0.16 1.60 0.63 0.08 10.0 20.0 5.0 15.0 15.0 3.54

0. 19 2.18 0.86 0.12 CRITICAL PERSON CRITICAL ORGAN Child Thyroid Child Thyroid Calculation used release data from the following:

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

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

(priority parameters)

Date of calculation:

4/12/2004 1-22

Figure 5.0-1 I.

4 13 1*

_ 1.

K t

_- _- m Mow X TM Locamuon LASALLE COUNTY STATION INNER RING TLD LOCATIONS 1-23

Figure 5.0-2 216-4 a 21W3 sw 215-4 2154.

R 24-4

214-3 213-4 2134.

211-1 Grind Rtdge 211-2 205-3 205-4 I

207-1 0020-2 Sigumm Kne msn stIr K~rnn LA sal. County Gruno Coupt Linoston County Xi n LMLYO a Lasine Staolon E:3-w g

u d

0 S

OW4.e LASALLE COUNTYSTATION OUTER IUNG TLD LOCATIONS I

1-24

Figure 5.0-3 I

. 1 4 i Grand Ridge Verona Kfnsman Orundy

-Oun II a pantom Stator La 1.l1. County 1Ak S~pMA Lontkm a wasc Stali a~ i i4 A. 1=tP m

L-npton County 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

.X.4 IE

. a 6

U K olani.Iu 5

a10 Fish N

Milk

+

Sediment Water LaSalle County Station ingestion and Waterbiome Exposure Pathway I

~Sample L~ocations 21 Illinois River atSaneca I2 LSCS Onsite Well at Station 28 Marseilles Well

-35 Marseilles Pool of Mllinois River 1 f361Iinois River Upstream of Discharge 40 Illinois River Dowmstem

-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 C IO 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 (mniles)

Direction Sector Site Code Outer Ring L-201-3,4 L-202-3,4 L-203-1,2 L-204-1,2 L-205-1,2 L-205-3,4 L-206-1,2 L-207-1,2 L-208-1,2 L-209-1,2 L-210-1,2 L-211-1,2 L-212-1,2 L-213-3,4 L-214-3,4 L-215-3,4 L-216-3,4 4.0 3.6 4.0 3.2 3.2 5.1 4.3 4.5 4.5 4.0 3.3 4.5 4.0 4.9 5.1 5.0 5.0 N

NNE NE ENE ESE E

SE SSE S

SSW SW WSW WSW W

WNW NW NNW A

B C

D F

E G

H J

K L

M M

N P

Q R

Sector E

3. MILK Distance (mile)

Direction Site Codea L-42 (C)

Location Biros Farm 14.2 E

4. GROUND/WELL WATER Site Codea L-27 L-28 Location LSCS Onsite Well at Station Marseilles Well Distance (miles)

At Station 7.0 Direction NWV Sector 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 (mi~les)

Direction Sector Site Codea L-21 (C)

L40 Location Illinois River at Seneca Illinois River Downstream 4.0 5.2 NE NNW C

R

6. FISH Distance (miles)

Direction Sector Site Codea L-34 L-35 L-36 (C)

Location LaSalle Cooling Lake Marseilles Pool of Illinois River Illinois River Upstream of Discharge 2.0 6.5 4.3 E

NW NNE E

Q B

7.

SHORELINE SEDIMENTS Distance (miles)

Direction Site Codea L-40 L-41 Location Illinois River Downstream Illinois River Downstream 5.2 4.6 NNW NNW Direction Sector R

A Sector

8.

VEGETATION Distance (miles)

Site Codea Location L-Quadrant-1 L-Quadrant-2 L-Quadrant-3 L-Quadrant-4 L-Control(C)

Diane Partridge Mike & Gina Welbourne Michael Olsen Robert Eisers Eugene Clements 4.5 3.8 1.5 4.5 10.0 NE ESE WSW NW NW C

H M

Q 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 in a 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 in a sample exceeds I 0 times the yearly mean of control 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 I lb-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 feeding practices:

Annually during grazing 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 1 st 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/m3)

(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.

b L-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 (pCi/m3)

(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.

b Locations L-05, L-06 and L-10 had identical means of 0.028 pCi/m3. 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 Reporting Period 4th Ouarter 2003 Location of Facility-LaSalle Countv. Tllinois (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 Winds Measured at 33 Feet Delta-T (F)

Wind Speed (in mph)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

0 0

0 5

0 0

0 o

o 0

0 0

0 3

3 0

3 o

0 0

2 0

0 0

0 8

8 1

20 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 11-2

LaSalle Nuclear Station Period of Record: January -

March 2003 Stability Class -

Moderately Unstable Winds Measured at 3.

200Ft-33Ft Delta-T (F) 3 Feet Wind Speed (in mph)

Wind Direction N

NE ENE E

ESE SE SSE S

SSW 1-3 0

0 0

0 1

4-7 8-12 13-18 19-24

> 24 Total 0

2 0

1 0

0 0

1 1

5 0

6 0

5 SW WSW W

0 12 0

4 0

3 0

4 NW NNW Variable 0

4 0

0 0

0 Total 0

3 17 11 16 1

48 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

0 11-3

LaSalle Nuclear Station Period of Record: January -

March 2003 Stability Class -

Slightly Unstable Winds Measured at 200Ft-33Ft Delta-T (F) 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 3

6 4

0 1

1 3

7 8

3 15 10 9

17 8

6 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 Winds Measured at Wind Speed Wind 200Ft-33Ft Delta-T (F) 33 Feet (in mph)

Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24

> 24 Total 1

0 1

0 0

1 0

1 1

2 2

1 2

1 0

16 42 36 19 31 25 5

15 24 2

6 10 5

8 10 3

0 0

7 6

5 7

6 2

8 17 17 8

8 8

7 26 31 4

10 13 9

18 13 17 41 48 9

46 27 16 64 89 0

0 0

6 0

44 7

0 0

2 1

4 1

10 15 14 39 9

4 0

156 0

101 0

75 1

90 0

25 0

23 0

4 0

20 1

18 0

46 0

26 1

76 2

46 0

56 7

153 6

99 0

174 0

0 18 1032 14 142 344 358 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 -

Stability Class -

Slightly Stable March 2003 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 3

2 1

0 1

1 1

1 2

2 1

0 0

2 0

1 0

14 7

3 4

13 7

14 7

7 9

8 6

4 15 16 12 0

6 4

7 2

6 3

7 2

13 6

8 2

13 1

9 5

5 21 17 16 25 17 11 17 14 11 25 35 26 3

7 5

0 0

10 0

0 0

1 0

4 4

2 5

5 7

2 0

0 0

27 0

18 0

23 0

13 0

33 0

18 0

30 0

22 0

39 0

48 1

54 0

39 0

34 14 98 0

47 0

25 0

0 18 146 199 150 40 15 568 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 II-6

LaSalle Nuclear Station Period of Record: January -

Stability Class - Moderately Stable Winds Measured at 33 March 2003 200Ft-33Ft Delta-T (F)

Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

1-3 0

0 1

1 1

4-7 8-12 13-18 19-24

> 24 Total 1

0 2

1 8

0 0

0 5

5 0

0 0

1 0

0 0

3 0

7 0

14 ESE SE SSE S

SSW 0

14 1

0 0

0 7

6 4

5 7

9 1

2 4

0 2

1 2

2 0

0 0

0 1

0 21 0

19 0

8 0

12 SW WSW W

WNW 0

0 1

2 12 6

17 3

3 8

6 0

1 1

3 0

17 0

27 0

28 0

34 9

9 1

12 12 NW NNW Variable Total 0

0 0

5 12 1

0 0

0 2

0 0

0 6

0 19 0

1 0

0 6

83 95 29 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 Winds Measured at 33 200Ft-33Ft Delta-T (F)

Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE 1-3 0

0 0

4-7 8-12 13-18 19-24

> 24 Total 0

0 0

1 1

2 3

5 0

0 0

0 2

3 5

3 0

0 0

1 0

3 0

5 SE 0

0 8

SSE 0

0 8

S 0

10 28 SSW SW 0

0 0

5 21 6

20 0

1 0

0 3

0 0

38 0

27 0

26 0

11 0

27 WSW 5

6 W

0 14 10 NW NNW Variable Total 0

0 0

0 9

3 0

0 2

2 0

0 0

0 4

0 0

11 0

5 0

0 0

64 102 0

170 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 II-8

LaSalle Nuclear Station Period of Record: January -

March 2003 Stability Class -

Extremely Unstable 375Ft-33Ft Winds Measured at 375 Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction 1-3 4-7 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

0 0

0 8-12 13-18 19-24

> 24 Total 0

0 0

0 o

a 0

0 0

1 0

0 1

0 0

0.

0 0

o o

0 0

0 1

0 0

1 Hours of calm in this stability class:

Hours of missing Hours of missing wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

2 11-9

LaSalle Nuclear Station Period of Record: January -

Stability Class - Moderately Unstable Winds Measured at 375 March 2003 375Ft-33Ft Delta-T (F)

Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 1

0 0

0 1

0 0

ESE SE SSE S

SSW SW WSW W

0 "0

0 0

0 1

0 0

NW NNW Variable Total 0

0 0

2 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

2 1-10

LaSalle Nuclear Station Period of Record: January -

Stability Class - Slightly Unstable Winds Measured at 375 March 2003 375Ft-33Ft Delta-T (F)

Feet Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

3 0

0 0

1 0

0 2

3 2

2 0

0 0

0 NW 1

1 0

0 Variable Total 0

0 5

10 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

5 9

37 30 0

4 29 10 28 0

1 8

25 16 1

3 11 8

5 0

3 6

8 6

0 2

3 2

2 1

7 4

1 2

0 8

13 5

3 1

11 21 13 13 1

1 9

13 10 0

8 18 35 32 1

3 6

13 17 0

6 12 17 11 2

10 24 34 39 1

8 33 49 52 0

11 40 54 45 0

0 0

26 107 3

74 65 115 21 49 0

23 0

9 1

16 7

336 4

63 5

39 19 112 19 59 13 59 59 168 33 176 8

158 0

0 283 1263 0

sses:

2 8

91 246 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 324 0

311 stability class:

all stability cla 1-12

LaSalle Nuclear Station Period of Record: January -

March 2003 Stability Class -

Slightly Stable 375Ft-33Ft Winds Measured at 375 Feet Delta-T (F)

Wind Direction Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 3

3 4

4 4

10 6

7 4

7 3

4 5

3 14 5

0 12 4

3 1

3 9

11 10 4

7 9

3 1

10 18 11 0

0 0

18 1

0 12 7

1 18 3

0 12 2

5 19 1

5 32 7

0 27 8

5 32 6

16 31 9

29 54 17 25 54 9

19 36 9

23 41 13 53 82 25 18 76 4

5 32 0

0 0

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

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

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable 0

0 0

.0 0

0 1

0 0

4 9

11 1

0 2

0 0

1 1

2 9

21 24 11 2

5 1

2 0

Total 1

4 5

15 27 27 79 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in stability class:

1 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 N

NNE NE ENE E

ESE SE SSE S

1-3 0

0 0

0 4-7 8-12 13-18 19-24

> 24 Total 0

1 0

0 0

0 8

2 2

0 0

0 2

3 0

0 0

2 0

0 1

1 1

0 0

0 2

0 10 0

6 0

3 0

1 0

0 0

2 SSW SW WSW W

WNW NW 0

0 0

13 0

0 1

1 0

9 4

2 0

0 0

0 4

7 2

2 4

0 0

0 3

20 1

17 0

6 0

5 1

5 0

1 0

1 Variable Total 0

0 0

16 36 22 5

79 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 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 N

NNE NE 1-3 0

0 0

4-7 8-12 13-18 19-24

> 24 Total 2

0 0

2 7

17 3

2 1

0 0

1 0

7 0

9 0

19 ENE 0

E 0

ESE SE SSE S

SSW SW 0

0 0

1 6

1 0

1 4

0 3

0 0

0 1

4 9

1 1

3 0

1 0

0 3

3 0

0 10 4

0 0

0 2

0 5

0 16 0

5 WSW 0

W 0

0 0

0 3

4 0

0 2

0 1

11 0

3 0

5 0

0 0

0 2

0 0

4 0

15 3

6 0

0 0

9 Variable Total 0

0 0

0 3

52 33 25 3

116 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

0 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) 1-3 4-7 8-12 13-18 19-24

> 24 Total Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 8

7 12 4

2 3

2 0

0 0

1 1

0 1

1 1

0 5

8 13 9

2 1

2 2

1 6

1 2

5 2

7 8

0 16 16 27 17 10 4

6 7

5 16 8

8 9

9 16 17 0

1 43 74 43 24 6

191 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

0 H-18

LaSalle Nuclear Station Period of Record: April -

June 2003 Stability Class -

Neutral Winds Measured at 200Ft-33Ft Delta-T (F) 33 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total Wind Speed 1-3 4-7 8-12 3

27 37 2

34 73 1

34 46 1

26 33 1

7 17 0

3 6

1 2

11 2

6 7

2 4

11 1

3 8

0 4

5 1

2 10 0

5 17 1

5 11 0

7 11 2

12 25 0

0 0

18 181 328 (in mph) 13-18 19-24

> 24 Total 5

5 34 54 19 7

12 6

11 3

10 10 10 11 14 12 0

223 0

0 5

13 15 6

3 0

5 3

6 6

7 15 2

5 0

0 72 0

114 0

120 10 137 1

60 1

23 2

31 0

21 0

33 1

19 1

26 8

37 7

46 0

43 0

34 0

56 0

0 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 Winds Measured at 200Ft-33Ft Delta-T (F) 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 39 11 2

37 25 1

10 40 8

2 31 23 17 43 14 5

9 0

0 3

4 5

4 7

5 7

7 6

6 9

7 21 6

4 14 4

5 5

4 2

2 1

3 7

2 7

10 2

0 0

0 54 238 94 0

53 0

63 0

58 0

57 0

75 0

16 0

9 0

17 1

26 3

30 0

37 1

24 4

19 4

15 0

12 0

19 0

0 7

1 24 13 530 Hours of calm in this stability class:

Hours of missing Hours of missing wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

0 11-20

LaSalle Nuclear Station Period of Record: April -

June 2003 Stability Class -

Moderately Stable Winds Measured at 200Ft-33Ft Delta-T (F) 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

1 10 0

16 1

0 0

0 2

1 1

0 1

0 0

0 12 0

16 0

2 0

2 8

23 0

32 ESE SE SSE 0

10 4

1 0

0 15 0

6 2

0 0

9 0

7 3

1 0

0 11 S

1 4

17 4

4 SSW 0

2 5

7 0

4 0

0 26 0

17 0

25 SW 0

6 14 WSW W

WNW NW NNW Variable Total 2

2 1

0 0

0 5

4 3

7 7

0 6

1 3

1 1

0 0

0 2

0 0

0O 4

0 13 0

7 0

9 0

8 0

0 11 95 75 27 0

212 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

0 1-21

LaSalle Nuclear Station Period of Record: April -

June 2003 Stability Class -

Extremely Stable Winds Measured at 200Ft-33Ft Delta-T (F) 33 Feet -

Wind Direction N

NNE NE ENE E

ESE Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

1 3

2 0

1 2

9 0

0 0

0 1

2 0

0 0

3 0

2 0

0 0

1 0

3 0

12 SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1

7 5

0 14 11 1

10 0

12 9

7 0

13 0

25 0

21 0

19 0

33 0

19 0

-16 0

11 1

15 15 1

4 14 0

10 1

0 0

0 6

2 1

0 6

4 1

0 0

0 3

0 1

0 0

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 -

Stability Class -

Extremely Unstable Winds Measured at 375 June 2003 375Ft-33Ft Delta-T (F)

Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

1-3 0

0 0

4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 NW NNW Variable Total Hours of calm in Hours of missing Hours of missing 0

0 0

0 this stability class:

0 wind measurements in this stability class:

0 stability measurements in all stability classes:

1 11-23

LaSalle Nuclear Station Period of Record: April -

Stability Class -

Moderately Unstable Winds Measured at 375 June 2003 375Ft-33Ft Delta-T (F)

Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

1-3 0

0 0

0 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 1

0 0

1 0

0 0

0 2

0 0

0 3

5 2

3 0

2 0

0 0

0 NW 0

0 0

0 Variable Total 0

0 0

3 3

5 11 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

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

1 1

ESE 0

0 0

SE 0

0 0

SSE 0

0 0

S 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

NNW 0

0 0

0 1

Variable 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

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

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 Winds Measured at 375 Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW raW NNW Variable 1-3 4-7 0

1 1

0 2

2 0

1 10 1

0 0

1 1

0 2

0 8-12 13-18 19-24

> 24 3

2 1

0 1

6 1

0 1

2 1

1 1

3 2

0 2

1 2

3 3

11 5

2 3

12 3

2 2

2 3

2 6

3 2

2 6

19 3

11 3

19 2

5 2

5 5

2 2

0 0

1 6

0 0

5 13 3

2 1

0 0

Total 6

9 7

6 10 24 20 9

14 30 36 15 10 8

21 6

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 -

Stability Class -

Extremely Stable Winds Measured at 375 June 2003 375Ft-33Ft Delta-T (F)

Feet Wind Direction N

NNE NE ENE Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 E

0 0

1 1

0 0

0 4

3 4

0 0

0 1

2 0

0 0

0 ESE 0

0 0

SE 0

2 6

SSE 0

3

-8 S

0 3

10 SSW SW WSW W

WNW NW NNW Variable Total 0

0 0

1 0

0 1

0 0

0 2

1 0

0 0

5 2

0 2

3 1

0 0

0 4

2 5

1 2

0 0

0 6

15 27 6

10 18 3

2 S

1 0

0 2

12 0

0 0

8 9

2 0

0 8

25 26 35 100 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

1 all stability classes:

1 11-29

LaSalle Nuclear Station Stability (

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

Period of Record: July - September 2003 Class -

Extremely Unstable 200Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

2 0

1 0

0 0

1 0

0 0

2 0

1 0

4 0

8 0

2 0

1 0

8 NW NNW Variable 0

0 0

0 Total 0

0 11 18 1

0 30 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

0 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 Direction N

NNE NE ENE Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 7

0 1

0 8

0 7

E 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 1

7 4

0 2

0 11 0

21 W

0 6

12 0

NW 0

0 1

0 0

8 1

6 2

0 1

0 I

0 0

0 3

0 0

15 4

0 1

Variable Total 0

0 0

0 5

69 40 0

117 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

0 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

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 -

Stability Class -

Neutral Winds Measured at Wind Speed Wind September 2003 200Ft-33Ft Delta-T (F) 33 Feet (in mph)

Direction 1-3 4-7 N

0 NNE 6

NE 1

ENE 3

E 1

ESE 2

SE 3

SSE 2

S 1

SSW 0

SW 5

WSW 4

W 2

WNW 1

NW 1

NNW 2

Variable 0

20 29 22 12 16 11 11 14 11 8

12 12 13 9

10 10 0

8-12 13-18 19-24

> 24 22 0

0 0

11 0

0 0

28 14 0

0 21 21 0

0 19 0

0 0

11 1

0 0

13 5

0 0

8 2

0 0

15 4

0 0

14 8

0 0

10 14 0

0 16 9

0 0

17 11 4

0 14 19 2

0 13 10 2

0 10 7

1 0

0 0

Total 42 46 65 57 36 25 32 26 31 30 41 41 47 45 36 30 0

Total 34 220 242 125 9

0 630 Hours of calm in this stability class:

Hours of missing wind measurements in this 0

stability class:

0 Hours of missing stability measurements in all stability classes:

0 11-33

LaSalle Nuclear Station Period of Record: July -

Stability Class -

Slightly Stable Winds Measured at Wind Speed Wind September 2003 200Ft-33Ft Delta-T (F) 33 Feet (in mph)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 2

32 10 3

26 11 2

10 26 0

6 26 0

10 17 1

9 2

2 9

8 2

11 6

2 10 14 3

8 22 3

16 29 4

15 16 3

19 18 2

16 18 0

9 12 0

8 15 0

0 0

0 6

2 0

0 0

6 7

4 5

1 2

1 0

0 34 0

44 0

40 0

38 0

29 0

12 0

19 0

32 0

41 0

52 0

41 0

22 0

23 0

0 0

532 29 214 250 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 11-34

LaSalle Nuclear Station Period of Record: July -

Stability Class -

Moderately Stable Winds Measured at Wind Speed Wind September 2003 200Ft-33Ft Delta-T 33 Feet (in mph)

(F)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 2

7 1

9 0

1 2

2 0

16 1

13 2

15 0

10 2

19 2

17 3

24 1

11 4

29 1

24 2

3 0

4 0

0 23 204 0

0 0

3 19 5

2 3

9 13 10 14 9

2 1

1 0

91 0

9 0

10 0

1 0

7 0

35 0

19 0

13 0

30 0

32 0

37 0

26 0

43 0

28 0

6 0

5 0

0 0

320 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 11-35

LaSalle Nuclear Station Period of Record: July Stability Class -

Extremely Stable Winds Measured at Wind Spee Wind September 2003 200Ft-33Ft Delta-T (F)

33 Feet

!d (in mph)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

5 0

0 0

1 0

0 1

7 1

2 26 3

0 40 1

0 45 10 2

43 10 3

31 8

0 31 12 1

24 13 3

30 3

1 10 0

0 3

0 0

1 0

0 0

5 0

0 0

1 0

9 0

31 0

41 0

55 0

42 0

43 0

38 0

36 0

11 0

3 0

1 0

0 0

371 14 296 61 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 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 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

2 1I-37

LaSalle Nuclear Station Period of Record: July -

September 2003 Stability Class - Moderately Unstable 375Ft-33Ft Winds Measured at 375 Feet Delta-T (F)

Wind Speed (in mph)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

0 0

Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

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 N

1-3 0

0 0

0 4-7 8-12 13-18 19-24

> 24 Total NE ENE E

0 ESE SE SSE S

SSW SW WSW W

0 0

0 0

0 2

1 1

2 0

0 0

0 6

0 0

1 0

0 0

0 2

0 1

0 0

3 5

0 0

0 1

0 0

NW NNW Variable Total 0

2 0

0 0

16 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1

16 28 18 0

12 31 19 2

16 20 44 2

16 16 41 2

10 22 14 0

9 24 1

1 8

8 13 2

18 18 20 1

9 14 15 0

8 13 16 2

9 8

21 1

9 8

19 1

7 19 30 1

5 29 26 1

17 13 22 1

9 15 6

0 0

1 0

16 22 1

2 5

5 5

17 22 15 22 25 17 6

0 181 0

64 0

62 0

98 0

97 0

49 0

36 0

35 0

63 3

47 5

59 5

67 2

54 4

83 6

92 3

73 1

38 0

0 29 1017 18 178 286 325 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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable 3

3 3

9 3

7 3

13 6

11 2

6 7

5 6

4 5

3 3

4 5

7 6

15 5

9 5

7 4

5 4

7 0

0 5

10 28 5

18 4

24 10 9

7 8

0 4

1 3

5 14 13 10 9

17 16 15 10 10 11 19 16 17 13 7

10 0

0 1

22 0

46 0

32 1

51 0

34 0

16 1

18 3

21 4

39 17 44 16 62 5

51 6

41 7

54 3

43 3

32 0

0 Total 6

70 115 208 140 67 606 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

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 N

NNE NE 1-3 1

0 1

4-7 8-12 13-18 19-24

> 24 Total 2

3 2.

1 5

4 3

1 7

0 0

7 0

9 0

14 ENE 0

E 0

0 5

1 0

0 2

8 3

6 7

4 9

ESE SE SSE S

SSW SW WSW W

0 0

0 1

0 0

4 5

4 7

3 7

0 10 2

21 3

20 5

24 5

28 4

39 0

10 10 3

12 13 1

4 7

5 1

4 7

8 7

14 31 7

14 12 42 5

5 7

7 31 3

31 3

13 WNW NW NNW Variable Total 0

0 0

0 2

10 15 15 3

4 0

4 4

0 9

4 0

6 2

0 0

42 0

23 0

14 0

0 3

42 79 121 86 55 386 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

2 11-42

LaSalle Nuclear Station Period of Record: July -

September 2003 Stability Class -

Extremely Stable 375Ft-33Ft Winds Measured at 375 Feet Delta-T (F)

Wind Speed (in mph)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

0 0

10 0

0 0

0 1

2 2

2 13 14 4

17 9

10 10 7

2 3

2 4

5 0

0 0

0 1

0 0

4 7

0 4

8 39 13 38 7

29 3

24 3

16 1

13 0

7 0

1 0

2 0

0 1

10 24 48 59 39 181 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in stability class:

0 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 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

1-3 0

0 0

4-7 0--

0 0

0 8-12 13-18 19-24

> 24 Total 0

0 0

0 1

0 0

0 1

2 NW 0

NNW Variable Total 0

0 4

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

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 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW 1-3 0

0 0

4-7 8-12 13-18 19-24

> 24 Total 0

5 0

0 0

3 0

1 0

4 0

3 0

6 0

0 0

8 1

5 1

10 0

6 W

0 WNW NW NNW Variable Total 0

0 0

0 2

0 3

4 6

11 I

0 2

1 0

1 2

1 0

0 2

10 1

20 0

4 0

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 Winds Measured at Wind Speed Wind 200Ft-33Ft Delta-T (F) 33 Feet (in mph)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 23 17 2

8 7

3 5

7 8

7 6

5 2

21 12 12 11 3

6 10 3

2 9

13 1

12 12 1

20 20 3

12 22 13 14 10 18 28 25 14 27 34 12 28 43 17 39 28 0

0 0

1 0

2 0

0 7

4 20 2

2 29 30 12 12 0

121 0

42 0

18 0

21 0

19 0

37 0

27 0

20 1

32 1

31 0

62 3

46 2

42 12 113 3

109 0

96 1

98 0

0 23 813 0

ses

0 14 144 268 243 0

Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in stability class:

all stability clas 11-47

LaSalle Nuclear Station Period of Record: October -

December 2003 Stability Class -

Slightly Stable 200Ft-33Ft Delta-T Winds Measured at 33 Feet Wind Speed (in mph)

Wind (F)

Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable 1-3 4-7 2

14 2

9 0

3 1

8 0

11 0

14 1

14 2

15 0

1 2

8 3

7 4

10 2

10 1

10 2

13 1

6 0

0 17 9

8 22 36 12 13 21 26 17 16 18 14 31 34 13 0

1 4

1 13 4

6 17 20 41 15 10 4

13 3

1 0

0 0

1 11 20 22 2

2 1

15 0

5 0

0 34 0

21 0

15 0

32 0

60 0

30 0

35 2

68 2

69 5

95 0

43 1

45 2

33 6

76 0

52 1

27 0

0 8-12 13-18 19-24

> 24 Total 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 Winds Measured at Wind Speed Wind

- 200Ft-33Ft 33 Feet (in mph)

Delta-T (F)

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 6

1 1

1 13 13 6

2 2

9 8

14 13 12 0

7 0

1 3

0 2

22 9

9 9

6 4

19 13 13 20 7

0 0

0 1

0 0

2 4

3 2

5 6

18 3

3 2

0 1

0 0

7 0

5 0

1 0

3 0

38 0

26 0

18 0

14 0

19 0

45 0

30 0

31 0

35 0

7 0

8 0

0 0

301 4

108 137 50 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

0 1I-49

LaSalle Nuclear Station Period of Record: October -

December 2003 Stability Class - Extremely Stable 200Ft-33Ft Winds Measured at 33 Feet Wind Speed (in mph)

Wind Delta-T (F)

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 6

0 0

1 5

13 22 24 5

6 13 S

16 6

2 2

0 0

0 5

S 7

2 7

14 22 15 18 1

0 0

0 96 0

6 0

0 0

1 0

10 0

18 0

29 0

26 0

12 0

22 0

35 0

23 0

34 0

7 0

2 0

0 0

227 0

127 Hours of calm in this stability class:

Hours of missing Hours of missing wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

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 N________

N NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

NNN NN NNW Variable Total 1-3 4-7 0

0 0

0 8-12 13-18 19-24

> 24 0

0 0

0 Total 0

0 0

Hours of calm in this stability class:

Hours of missing Hours of missing wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

0 0

1 0

0 0

0 1

0 0

1 1

2 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

4 II-52

LaSalle Nuclear Station Period of Record: October -

December 2003 Stability Class -

Slightly Unstable 375Ft-33Ft Winds Measured at 375 Feet Delta-T (F)

Wind Speed (in mph)

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

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0

0 0

0 0*

0 0

1 1

0 0

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 8

25 9

2 9

4 6

6 6

7 12 14 5

11 14 7

0 13 29 11 6

10 15 6

1 13 5

5 4

17 13 16 1

9 28 12 0

11 24 21 4

9 19 13 5

8 14 19 10 16 24 14 12 23 33 25 6

31 47 58 11 24 18 7

0 0

0 44 0

25 2

41 0

37 7

60 3

40 6

31 12 62 10 61 33 89 19 66 11 57 44 109 35 129 52 194 8

68 0

0 242 1113 6

88 231 310 236 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

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 Winds Measured at 375 Feet Delta-T (F)

Wind Speed (in mph)

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

> 24 Total N

NNE NE ENE 0

0 0

8 1

0 2

4 4

0 6

0 1

0 0

0 8

12 6

0 E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1

0 3

2 0

6 0

4 4

5 3

16 1

3 10 6

5 25 0

0 3

6 5

14 1

1 0

2 9

13 0

2 0

2 7

11 1

2 7

5 20 35 0

1 0

4 11 16 1

6 3

10 7

27 2

2 6

18 7

35 1

1 3

8 7

20 0

1 1

2 0

4 0

0 0

0 8

32 50 77 81 248 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

0 all stability classes:

4 11-56

LaSalle Nuclear Station Period of Record: October -

December 2003 Stability Class -

Extremely Stable 375Ft-33Ft Winds Measured at 375 Feet Delta-T (F)

Wind Direction N________

N Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 NE ENE 0

0 0

0 2

3 0

0 0

1 2

6 0

0 0

0 E

0 0

0 ESE 0

2 3

SE 0

2 6

SSE 0

4 13 S

0 SSW 0

SW 0

WSW 0

W 0

0 0

2 0

0 0

1 4

1 0

0 2

8 4

0 6

11 26 5

2 5

18 1

10 15 10 36 5

1 6

7 14 WNW 0

2 14 4

20 NW 0

0 0

2 0

0 0

3 0

0 Variable 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 List of Tables.......................

111-3

1.0 INTRODUCTION

111-4 2.0 LISTING OF MISSED SAMPLES.......................

111-5 3.0 LISTING OF SAMPLE ANOMALIES.1.......................................

11.-6 4.0 2003 ANALYSES DATA TABLES...........................................

1II-7 5.0 LAND USE CENSUS.......................................................

111-32 6.0 TLD DATA.........................................................

III-36 7.0 GRAPHS OF DATA TRENDS...............................................111-40 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 0 hours 0 weeks 0 months .

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 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months 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 0.00222 hours 1.322751e-5 weeks 3.044e-6 months due to recent power restoration.

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

A/I L-03 07-31-03 Low reading of 147.7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months 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 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months .

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

Units:

10 2 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 01-09-03 288 2.8 + 0.3; 0.6 01-16-03 280 2.1 +0.4;0.5 0.5+0.4;0.4 01-23-03 288 3.1 +/-0.4;0.7 01-30-03 284 3.5 + 0.4; 0.7 0.7+/-0.4;0.4 02-06-03 284 3.2 4 0.4; 0.7 02-13-03 284 2.1 +0.4;0.5 0.5+/-0.4;0.4 02-20-03 285 2.1 4 0.4 ;0.5 02-27-03 282 2.7 + 0.3; 0.6 0.4 + 0.4 ;0.4 03-06-03 290 3.1 + 0.4 ; 0.7 03-13-03 284 3.6 + 0.4; 0.8 0.0 + 0.4 ;0.4 03-20-03 289 2.7 +/- 0.4; 0.6 03-27-03 285 2.1 + 0.4 ;0.5

-0.1 + 0.4 ;0.4 1st Qtr. Meanrs.d.

2.9+0.7 0.3+/-0.3 07-03-03 303 2.6 +/- 0.3; 0.6 07-10-03 278 2.0 0.4; 0.5 07-17-03 284 1.8 0.3; 0.5 07-24-03 287 1.8 +/-0.3;0.4 07-31-03 279 2.3 +/-0.3; 0.5 08-06-03 255 2.6 +/- 0.4; 0.6 08-13-03 285 1.4 +/-0.3 ;0.4 08-21-03 316 3.6 0.4; 0.8 08-28-03 282 3.6 +/-0.4 ;0.7 09-04-03 290 1.8 +/-0.3 0.4 09-11-03 280 3.9 0.4; 0.8 09-18-03 283 3.4 0.4; 0.7 09-25-03 288 3.0 0.4; 0.7 3rd Qtr. Mean+/-s.d.

2.6+/-0.8

-0.1 +/- 0.4;0.4 1.1 + 0.3 ;0.4 0.0+/-0.3 ;0.3 0.7+/- 0.3 ;0.4

-0.7+/-0.3 ;0.4

-0.0+/- 0.3 ;0.3 0.6 +/- 0.3 ;0.4 0.2+/- 0.6 04-03-03 284 1.9 +/- 0.4; 0.5 04-10-03 280 1.6 +/- 0.3; 0.4 0.7+/-0.4;0.4 04-17-03 283 2.6 +/- 0.3; 0.6 04-24-03 285 2.0 +/- 0.3; 0.5

-0.0+ 0.4 ;0.4 05-01-03 283 2.2 +/- 0.4; 0.5 05-08-03 285 1.6 +0.3 ;0.4 0.7+ 0.3 ;0.3 05-15-03 283 1.5 +/- 0.3; 0.4 05-22-03 287 1.4 +/- 0.3; 0.4 0.2 +/- 0.4 ;0.4 05-29-03 279 2.1 +/-0.4;0.5 06-05-03 285 1.7 +/- 0.3; 0.4

-0.3 +/- 0.3 ;0.3 06-11-03 242 1.7 +/- 0.4; 0.5 06-19-03 326 2.0 +/- 0.3; 0.5

-0.3 + 0.4 ;0.4 06-26-03 290 2.0 +/- 0.3; 0.5 2nd Qtr. Meanis.d.

1.9+/-0.3 0.2+/-0.5 10-02-03 285 1.6 +/-0.3 ;0.4 10-09-03 278 2.8 +/-0.4; 0.6 0.1 +/- 0.3 ;0.3 10-16-03 291 3.0+/-0.4;0.7 10-23-03 288 2.9 +/- 0.4; 0.6 0.0+/- 0.3 ;0.3 10-30-03 284 2.0 +/- 0.3; 0.5 11-06-03 284 2.1 +/-0.4;0.5 0.4+/-0.3;0.3 11-13-03 278 3.4 +/- 0.4; 0.7 11-20-03 285 2.0 +/- 0.3 ; 0.5 0.1 +/- 0.3 ;0.3 11-26-03 247 2.0 +/- 0.4; 0.5 12-04-03 325 2.6 +/- 0.4; 0.6

-0.2 +/- 0.3 ;0.3 12-11-03 282 2.4 + 0.4; 0.6 12-18-03 285 2.8 +/- 0.4; 0.6 0.4 0.3 ;0.3 12-24-03 245 2.9 +/- 0.4 ;0.7 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/m 3

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 01-09-03 259b 3.2 +/- 0.4; 0.7 01-16-03 280 2.6 +/- 0.4; 0.6

-0. 1 +/- 0.3 ;0.3 01-23-03 288 3.1 +/-0.4;0.7 01-30-03 284 3.4 +/- 0.4; 0.7 0.4+/- 0.5 ;0.5 02-06-03 285 3.4 A 0.4; 0.7 02-13-03 284 2.0 +/- 0.4; 0.5 0.5 +/- 0.4 ;0.4 02-20-03 280 1.9 +/- 0.4; 0.5 02-27-03 282 3.0 +/- 0.4; 0.6 0.6 +/- 0.3 ;0.3 03-06-03 294 2.9 +/- 0.4; 0.7 03-13-03 284 3.6 +/- 0.4; 0.8 0.2 +/- 0.3 ;0.3 03-20-03 284 2.4 +/- 0.4; 0.6 03-27-03 285 2.6 +/- 0.4; 0.6 0.4 4 0.4 ;0.4 Ist Qtr. Mean~s.d.

3.0+/-0.7 0.2+/-0.4 07-03-03 288 2.6 +/- 0.3 ; 0.6 07-10-03 276 2.4 +/- 0.4; 0.6 07-17-03 195' 1.5 +/- 0.4; 0.5 07-24-03

98.

2.4 +/- 0.8; 0.9 07-31-03 250' 2.6 +/- 0.4; 0.6 08-06-03 257 2.6 +/- 0.4; 0.6 08-13-03 284 1.8 +/- 0.4; 0.5 08-21-03 314 3.4+/-0.4;0.7 08-28-03 283 2.8 +/- 0.3; 0.6 09-04-03 290 1.9 +/- 0.3 0.5 09-11-03 279 4.2 +/- 0.5; 0.9 09-18-03 284 3.6+/-0.4;0.8 09-25-03 289 2.5 +/- 0.4; 0.6 3rd Qtr. Mean+/-s.d.

2.6+/-0.7 0.3 +/- 0.3 ; 0.3 0.1+/-0.3 ;0.3 0.1 +/- 0.5;0.5

-0.3 + 0.4 ;0.4 1.1 +/-0.3 ;0.4

-0.5+/-0.3 ;0.4 0.2+/- 0.3 ;0.3 0.1+/- 0.5 04-03-03 289 1.8 +/- 0.4; 0.5 04-10-03 280 1.7 4 0.3; 0.4 0.5+/- 0.4 ;0.4 04-17-03 283 2.1 +/-0.3 ;0.5 04-24-03 285 2.2 A 0.3; 0.5

-0.5 + 0.4 ;0.4 05-01-03 287 2.0 0.3; 0.5 05-08-03 285 1.8 0.3 ;0.4 0.0 +/- 0.3 ;0.3 05-15-03 283 1.5+0.3;0.4 05-22-03 285 1.4 + 0.3; 0.4

-0.2 4 0.4 ;0.4 05-29-03 285 1.8 +/- 0.3; 0.5 06-05-03 285 1.7 4 0.3 0.4

-0.3 4 0.4 ;0.4 06-11-03 242 1.8 0.4; 0.5 06-19-03 326 2.0 +/- 0.3; 0.5

-0.0+ 0.4 ;0.4 06-26-03 286 1.8 + 0.3; 0.5 2nd Qtr. Meanms.d.

1.8+/-0.2

-0.1+/- 0.3 10-02-03 284 1.3 +/-0.3 ;0.4 10-09-03 283 2.9 +/- 0.4; 0.6

-1.0+/- 0.4 ;0.4 10-16-03 285 3.0 +/- 0.4; 0.7 10-23-03 286 3.2 +/-0.4 ;0.7

-0.4+/-0.3 ;0.3 10-30-03 287 1.7 +/- 0.3; 0.5 11-06-03 284 2.1 +/- 0.4; 0.5

-0.1 +/- 0.3 ;0.3 11-13-03 283 3.5 +/- 0.4; 0.7 11-20-03 280 2.0 +/- 0.3; 0.5

-0.5 +/- 0.3 ;0.3 11-26-03 247 2.3 +/- 0.4; 0.6 12-04-03 325 2.8 4 0.4; 0.6

-0.4 + 0.3 ;0.3 12-11-03 282 1.9 +/- 0.4; 0.5 12-18-03 284 2.9 +/- 0.4; 0.7

-1.0+/-0.3;0.4 12-24-03 246 3.6 + 0.4; 0.8 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 0 hours 0 weeks 0 months .

'Volume low; power outage possibly caused by lightning.

d Volume low; timer reading of 57.8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 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 Units:

10 pCihm3 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 01-09-03 293 2.7 +/- 0.3 ;0.6 01-16-03 280 2.5 +/- 0.4; 0.6

-0.3 +/- 0.4 ;0.4 01-23-03 287 3.2 +/- 0.4; 0.7 01-30-03 284 3.8 +/- 0.4; 0.8 0.6 +/- 0.4 ;0.4 02-06-03 287 3.6 +/- 0.4; 0.7 02-13-03 278 2.7 +/- 0.4; 0.6

-0.2 +/- 0.3 ;0.3 02-20-03 285 2.1 +/-0.4;0.5 02-27-03 277 3.4 +/- 0.4 ;0.7 0.6 +/- 0.3 ;0.4 03-06-03 286 3.6 +/- 0.4; 0.8 03-13-03 287 3.6 +/- 0.4; 0.8

-0.3 +/- 0.4 ;0.4 03-20-03 283 2.6 +/- 0.4; 0.6 03-27-03 284 2.4 +/-0.4;0.6 0.2+/-0.3 ;0.3 lst Qtr. Mean+/-s.d.

3.1+/-0.7 0.1+/-0.4 07-03-03 296 2.7 +/- 0.3; 0.6 07-10-03 276 2.3+/-0.4;0.6 07-17-03 283 2.0 + 0.3; 0.5 07-24-03 152b 3.8 +/- 0.6; 0.9 07-31-03 282 2.9 +/- 0.3; 0.6 08-06-03 207' 3.4 + 0.5; 0.8 08-13-03 284 1.5 +/-0.4; 0.4 08-21-03 312 3.7 0.4; 0.8 08-28-03 283 3.5 +/- 0.4; 0.7 09-04-03 284 2.2 +/-0.3 ;0.5 09-11-03 285 4.3 +/-0.5 0.9 09-18-03 285 3.3+/-0.4;0.7 09-25-03 289 3.2 +/- 0.4; 0.7 3rd Qtr. Mean+/-s.d.

3.0+/-0.8 1.0+/- 0.4;0.4 0.5 + 0.3 ;0.3

-0.5 +/- 0.4 ;0.5 0.4+ 0.4 ;0.4 0.7 +/- 0.4 ;0.4 0.6+/- 0.3 ;0.4 1.4+/- 0.3 ;0.4 0.6+/- 0.6 04-03-03 285 2.4 i 0.4; 0.6 04-10-03 282 2.0 0.3; 0.5 0.3 + 0.3 ;0.3 04-17-03 284 2.5 +/- 0.3; 0.6 04-24-03 285 2.1 +/- 0.3; 0.5 0.1 +/- 0.4 ;0.4 05-01-03 288 2.6 0.4; 0.6 05-08-03 284 1.8 +/- 0.3 0.4

-0.2 +/- 0.4; 0.4 05-15-03 283 1.6 +/- 0.3; 0.4 05-22-03 284 1.5 +/- 0.3; 0.4 0.5 +/- 0.4 ;0.4 05-29-03 284 2.0 +/- 0.4; 0.5 06-05-03 287 1.9 +/- 0.3; 0.5

-0.5 +/- 0.4 ;0.4 06-11-03 241 1.7 +/- 0.4; 0.5 06-19-03 326 1.9 +/- 0.3; 0.5 0.0+/- 0.4 ;0.4 06-26-03 290 2.5 +/- 0.4 ; 0.6 2nd Qtr. Mean~s.d.

2.0+/-0.4 0.0+/- 0.4 10-02-03 289 1.8 +/- 0.3; 0.4 10-09-03 283 3.2 +/- 0.4; 0.7 0.4 +/- 0.3 ;0.3 10-16-03 284 2.7 +/- 0.4; 0.6 10-23-03 289 3.7+/-0.4;0.8 0.4+/-0.3;0.3 10-30-03 284 2.0 + 0.3; 0.5 11-06-03 289 2.0 +/- 0.4 ; 0.5 0.4+/- 0.3;0.3 11-13-03 285 3.9 +/- 0.4; 0.8 11-20-03 285 2.1 +/-0.3;0.5

-0.4+/-0.3;0.3 11-26-03 245 2.5 +/- 0.4; 0.6 i2-04-03 331 2.7 +/-0.4 ;0.6 0.8+/- 0.3 ;0.4 12-11-03 285 2.5 +/- 0.4; 0.6 12-18-03 284 2.9+/-0.4;0.7 0.2+/-0.3;0.3 12-24-03 245 3.9 +/- 0.4; 0.8 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 0 hours 0 weeks 0 months .

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

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 01-09-03 288 2.8 +/- 0.3; 0.6 01-16-03 280 2.5 +/- 0.4; 0.6

-0.0+/- 0.3 ;0.3 01-23-03 288 2.9 +/- 0.4; 0.6 01-30-03 285 3.4 +/- 0.4; 0.7 0.7 0.4 ;0.4 02-06-03 284 3.0 +/- 0.4; 0.6 02-13-03 284 2.7 +/- 0.4; 0.6

-0.5 +/- 0.4 ;0.4 02-20-03 285 1.8 +/- 0.3; 0.5 02-27-03 282 2.8 +/-0.3 ;0.6

-0.0+/-0.3 ;0.3 03-06-03 289 3.2 +/- 0.4; 0.7 03-13-03 284 3.9 +/- 0.4; 0.8

-0.2+/- 0.4;0.4 03-20-03 284 2.6 + 0.4; 0.6 03-27-03 285 2.3 +/- 0.4; 0.5 0.1 +/- 0.4 ;0.4 Ist Qtr. Mean+/-s.d.

2.9+/-0.6 0.0+/-0.4 07-03-03 293 3.0 +/- 0.3; 0.6 1.1 +/- 0.4;0.4 07-10-03 278 2.2 +/- 0.4; 0.5 07-17-03 284 2.2 +/- 0.4; 0.5 0.8 +/- 0.3 ;0.4 07-24-03 288 2.0 +/- 0.3; 0.5 07-31-03 284 2.3 +/- 0.3 ;0.5 0.5+/-0.3 ;0.3 08-06-03 255 2.6 +/- 0.4; 0.6 08-13-03 284 1.4 +/- 0.3; 0.4

-0.4+/- 0.4 ;0.4 08-21-03 315 3.5 +/- 0.4; 0.7 08-28-03 283 3.9 +/- 0.4; 0.8

-0.3 +/- 0.4 ;0.4 09-04-03 290 2.1 +/-0.3 ;0.5 09-11-03 280 4.2 0.5; 0.9

-0.1 +/-0.3 ;0.3 09-18-03 288 3.9 0.4; 0.8 09-25-03 288 2.7 +/- 0.4; 0.6

-0.2 + 0.3; 0.3 3rd Qtr. Mean+/-s.d.

2.8+/-0.9 0.2+/- 0.6 04-03-03 284 2.0 +/- 0.4; 0.5 04-10-03 280 1.6 +/- 0.3 ;0.4 0.0+/- 0.4;0.4 04-17-03 283 2.3 +/- 0.3; 0.5 04-24-03 285 2.0 +/- 0.3; 0.5

-0.5 +/- 0.4 ;0.4 05-01-03 237b 2.7 +/- 0.4; 0.6 05-08-03 285 1.8 +/- 0.3; 0.4

-0.3 +/- 0.4 ;0.4 05-15-03 76.'

1.9+/-1.0;1.1 05-22-03 287 1.5 +/- 0.3; 0.4

-0.9 +/- 0.6 ;0.7 05-29-03 284 2.1 +/-0.4;0.5 06-05-03 285 2.2 +/- 0.3 0.5 0.3 +/- 0.4 ;0.4 06-11-03 238 2.2 +/- 0.4; 0.6 06-19-03 326 2.0 +/- 0.3; 0.5

-0.5 +/- 0.4 ;0.4 06-26-03 285 2.1 +/- 0.4 ;0.5 2nd Qtr. Mean+/-s.d.

2.0+/-0.3

-0.3+/- 0.4 10-02-03 283 1.6 +/-0.3 0.4 10-09-03 284 3.5 +/-0.4; 0.7

-0.7 0.3 ;0.4 10-16-03 286 2.9+/-0.4;0.6 10-23-03 288 3.1 +/-0.4;0.7 0.5+/-0.3;0.3 10-30-03 284 2.1 +/-0.4;0.5 11-06-03 284 2.2 +/- 0.4; 0.5 0.7 0.3 0.3 11-13-03 283 3.9 0.4; 0.8 11-20-03 285 2.3 +/- 0.3; 0.5

-0.7 0.3 ;0.4 11-26-03 247 2.2 i0.4; 0.6 12-04-03 325 2.7 +/- 0.4; 0.6

-0.8 +/- 0.3 ;0.4 12-11-03 282 2.6 0.4; 0.6 12-18-03 285 3.3 +/-0.4; 0.7

-0.5+/-0.4;0.4 12-24-03 245 4.2 +/- 0.4; 0.9 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 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months .

'Volume low; low reading of 45.1 hours1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months 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 Date Volume Gross Collected (i 3)

Beta I-131' 01-02-03 284 4.9 +/- 0.4; 1.0

-0.1 + 0.4 ;0.4 01-09-03 286 3.5 0.4; 0.8 01-16-03 284 2.5 0.4; 0.6 0.6+0.3;0.4 01-23-03 287 3.7 0.4; 0.8 01-30-03 284 4.3 +/-0.4; 0.9

-0.1 + 0.4 ;0.4 02-06-03 284 3.6 +/- 0.4; 0.7 02-13-03 285 2.8 0.4; 0.7 0.0 4 0.4 ;0.4 02-20-03 285 2.1 + 0.4; 0.5 02-27-03 284 3.0 +/- 0.4; 0.6 0.1 + 0.3 ;0.3 03-06-03 286 2.9 + 0.4; 0.7 03-13-03 285 4.0 + 0.4; 0.8

-0.2 4 0.4; 0.4 03-20-03 285 2.7 +/- 0.4; 0.6 03-27-03 285 2.3 + 0.4; 0.6 0.1 +/- 0.4 ;0.4 1st Qtr. Meanhs.d.

3.3+/-0.8 0.1+/-0.3 10 (C) Streator Date Volume Gross Collected (m3 )

Beta I-131' 07-03-03 296 3.1 +/-0.3;0.6 07-10-03 274 2.7 +/- 0.4; 0.6 07-17-03 287 1.9+/-0.3;0.5 07-24-03 290 1.7 +/- 0.3; 0.4 07-31-03 285 2.5 +/- 0.3; 0.6 08-06-03 256 2.9 +/- 0.4; 0.7 08-13-03 284 1.4 +/- 0.3; 0.4 08-21-03 311 3.8 +/- 0.4; 0.8 08-28-03 284 3.6 +/-0.4; 0.8 09-04-03 284 2.3 +/- 0.3; 0.5 09-11-03 285 4.8 0.5; 1.0 09-18-03 285 4.1 +/-0.4;0.8 09-25-03 290 2.9 + 0.4 ; 0.7 3rd Qtr. Mean+/-s.d.

2.9+/-1.0

-0.3+/-0.4 ;0.4 0.1 0.3; 0.3

-0.2 + 0.3 ;0.3

-0.9 + 0.4 ;0.4 1.04 0.3 ;0.4 0.3 + 0.3 ;0.3

-0.9+0.3 ;0.4

-0.1+/- 0.7 04-03-03 284 2.3 +/- 0.4; 0.6 04-10-03 285 1.8 +/- 0.3 ;0.4 0.2+/- 0.4 ;0.4 04-17-03 284 2.6 +/- 0.3; 0.6 04-24-03 285 2.1 +/-0.3;0.5 0.2+/-0.4;0.4 05-01-03 288 2.4 +/- 0.4; 0.6 05-08-03 283 1.7 +/- 0.3 0.4

-0.4 +/- 0.4 ;0.4 05-15-03 285 1.6 +/- 0.3; 0.4 05-22-03 284 1.5 +/- 0.3 0.4

-0.2 +0.3 ;0.4 05-29-03 284 2.3 +/- 0.4; 0.6 06-05-03 285 2.1 +/-0.3;0.5 0.1+/-0.4;0.4 06-11-03 244 2.0 +/- 0.4; 0.6 06-19-03 326 2.1 +/- 0.3; 0.5

-0.6+/- 0.3 ;0.4 06-26-03 285 2.5 +/- 0.4,0.6 2nd Qtr. Mean+/-s.d.

2.1+/-0.3

-0.1+/-0.3 10-02-03 293 1.7 +/- 0.3; 0.4 10-09-03 288 3.3 +/-0.4;0.7

-0.9+/-0.3 ;0.4 10-16-03 283 3.3 0.4; 0.7 10-23-03 291 3.3 0.4 ;0.7 0.8+/- 0.3 ;0.4 10-30-03 283 2.1 +/-0.4 ;0.5 11-06-03 288 2.0 0.4; 0.5 0.9 +/- 0.3 ;0.3 11-13-03 285 3.8 +/- 0.4; 0.8 11-20-03 285 2.2 +/- 0.3 ;0.5

-0.6+/-0.3 ;0.4 11-26-03 244 2.6 +/- 0.4; 0.6 12-04-03 326 3.1 +/-0.4;0.7 0.8+/-0.3;0.3 12-11-03 285 2.4 0.4; 0.6 12-18-03 283 3.6 0.4; 0.8 1.1 +/- 0.3 ;0.4 12-24-03 246 3.6 +/-0.4; 0.8 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 Period Lab Code Volume 1st Qtr.

LAP-2074 3,710 2nd Qtr.

LAP-4248 3,699 3rd Qtr.

LAP-6616 3,717 4th Qtr.

LAP-8030 3,955 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-Zr-95 Cs-134 Cs-137 Ba/La-140 7.8 +/- 6.4 ; 6.5

-3.3 +/- 9.4 ; 9.4

-3.2+/-5.6;5.6 0.3 +/- 5.9 ; 5.9 5.6 +/- 8.4 ; 8.4

-5.5 +/-6.0; 6.0 1.2+/-7.1 ;7.1 5.3 +/- 6.4 ; 6.4

-9.1 +/- 7.3;7.4

-2.1 +/- 6.3 ; 6.3 1.1 +/- 10.1 ; 10.1 7.5 +/- 4.7 ; 4.9 3.7+/-5.4;5.5 7.2 +/- 12.8; 12.8

-3.3 +/-5.4; 5.4 1.1 +/- 7.5 ; 7.6 6.0+/- 5.7 ;5.8

-48.4 +/- 7.6; 11.5

-3.7 +/- 6.5 ; 6.5 21.9+/-7.6; 8.5 2.0 4 4.3 ; 4.3

-1.5 +/- 5.4 ; 5.4 1.6+/- 9.5; 9.5 7.4 +/-5.0; 5.1

-1.8+/-5.4;5.4 1.0+/- 6.0; 6.0 16.9 +/- 8.2;8.7 3.1 +/- 4.7 ; 4.8 11.8+/-9.5 ;9.7

-5.7 +/- 4.8 ; 4.9

-3.6 +/- 6.9 ; 6.9 5.2 +/- 7.9 ; 7.9

-3.0 +/-5.4; 5.4 3.3+/-5.0;5.1 3.7 +/- 4.9 ; 4.9 15.8 +/- 6.1 ; 6.7 2003 Collection Period 1st Qtr.

L-03 Onsite No. 3 2nd Qtr.

LAP-4249 3,709 3rd Qtr.

LAP-6617 3,393 Lab Code LAP-2075 4th Qtr.

LAP-8031 3,958 Volume 3,677 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-Zr-95 Cs-134 Cs-137 Ba/La-140

-0.9 +/- 6.5 ; 6.5 8.8 +/-5.2;5.4 1.4+/-6;2 ;6.3 0.4 +/- 7.3 ; 7.3

-16.8 +/- 14.4; 14.7

-6.5 +/-5.5; 5.7 5.2 +/- 7.3 ; 7.3 4.4 +/- 7.3 ; 7.4

-30.9 +/- 8.2;9.9 1.2+/-5.2;5.2

-2.2+/- 11.2; 11.2

-4.6 +/- 4.9 ; 4.9 7.2 +/- 6.4; 6.5 12.0+/-10.2; 10.4 3.0 +/-5.9; 6.0 10.8+/-6.3; 6.5

-2.4 +/- 6.2 ; 6.2 21.1 1.6.5 ;7.5

-5.0 +/- 6.3 ; 6.4

-12.0 +/- 9.1; 9.3

-0.6 +/- 4.9 ; 4.9 7.1 +/- 8.1 ; 8.2 2.7 +/- 12.8 ; 12.8

-9.8 +/-6.7; 6.9

-1.3+/-6.1 ;6.1 3.6+/-6.1 ;6.1 9.3 +/- 6.3 ; 6.5

-6.7 +/- 6.4 ; 6.5 1.0+/- 9.5 ;9.5

-0.7+/-5.1 ;5.1

-1.9+/- 7.3 ;7.3

-0.7 +/- 10.3 ; 10.3 4.1 +/-4.0; 4.1 5.0 +/- 5.9 ; 5.9

-2.8+/-6.1 ;6.1

-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/m3 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/rn3 Urnis 104 pCilmn Sample Description and Concentration L-05 Onsite Station No. 5 2003 Collection Period Lab Code Volume 1st Qtr.

LAP-2076 3,705 2nd Qtr.

LAP-4250 3,709 3rd Qtr.

LAP-6618 3,526 4th Qtr.

LAP-8032 3,975 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-Zr-95 Cs-134 Cs-137 Ba/La-140 2.1+ 5.9 ; 6.0

-17.4 + 8.8; 9.4 0.8 + 5.6 ; 5.6 1.9 +/- 4.8 ; 4.9

-11.1 +/- 10.3 ; 10.5 0.7 +/- 6.1 ; 6.1 2.4 +/- 4.4 ; 4.4 0.7 + 4.6 ; 4.6

-8.0 +/- 4.9;5.1 1.2+/-3.9 ;3.9

-2.2+/- 11.2; 11.2 1.2+4.2 ;4.2 6.1 44.5 ;4.6 4.0+/- 12.1 ; 12.1

-9.9 +5.6; 5.9 3.9+/-7.1 ;7.1

-3.5 +/- 6.0 ; 6.0

-79.7 + 8.1; 16.3 6.4 +/- 6.3 ; 6.4

-9.0+/-9.1 ;9.2 9.2+/- 5.0; 5.3 5.9+/-7.6 ;7.7

-9.4 +/- 13.4; 13.5 6.0 +/-3.3 ; 3.4 1.6+/-5.8; 5.8

-3.5+/-5.9 ;6.0

-12.6 +/- 5.1 ;5.6 0.6 +/- 5.8 ; 5.8

-27.4+/- 12.1 ; 13.0 1.7+/- 4.0 ;4.0

-4.5 +/- 5.4 ; 5.5

-6.6+/- 12.1 ; 12.2

-8.7 +/-5.6; 5.8

-0.4 +/- 4.8 ; 4.8 0.2 +/- 6.2 ; 6.2

-17.7 +/- 3.6;4.8 2003 Collection Period Lab Code Volume Ist Qtr.

LAP-2077 3,706 L-06 Nearsite No. 6 2nd Qtr.

LAP-4251,2 3,442 3rd Qtr.

LAP-6619 3,718 4th Qtr.

LAP-8033 3,960 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-Zr-95 Cs-134 Cs-137 Ba[La-140 3.6+5.6;5.7

-10.9 +/- 9.9; 10.1 0.4 + 4.0; 4.0 3.8 +/- 6.8 ; 6.9

-5.6 +/- 9.7; 9.8

-5.2 +/- 5.2; 5.3

-1.3+/-6.1 ;6.1 0.1+/- 5.0; 5.0

-15.0 +/- 4.4;5.1 2.6+/-4.2 ;4.2

-28.9 + 9.3; 10.6 0.4 +/- 4.4 ; 4.4 2.9 +/- 3.2 ; 3.3

-11.2 + 9.4 ; 9.6

-3.6 +4.1; 4.1

-0.1+/- 5.0 ; 5.0

-2.2 +/- 4.6 ; 4.6 34.6 +/- 6.1 ;8.6 6.1+/- 6.0 ; 6.1

-17.1 + 9.1; 9.6

-3.0 + 4.0 ; 4.0 1.0+4.5 ;4.5 4.1+/-7.8 ;7.9 4.9+7.4; 7.5 0.5 +/- 2.8 ; 2.8

-3.9+/- 5.5; 5.6

-22.2 +/- 4.4;5.9

-1.1 +/- 6.4 ; 6.4 5.9+/-8.6;8.7

0. 1+/- 4.8 ; 4.8 1.9 +/- 6.0; 6.0 6.7+/- 11.9; 12.0 3.2 +/-3.9; 4.0

-3.0 +/- 5.3 ; 5.4

-3.2 +/- 5.3; 5.3

-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/m3 Other LLDs:

Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCi/m3 T Tittc-iI nrdli/m 3

Sample Description and Concentration 2003 Collection Period 1st Qtr.

L-10 (C) Streator 2nd Qtr.

LAP4253 3,709 Lab Code LAP-2078 3rd Qtr.

LAP-6620 3,719 4th Qtr.

LAP-8034 3,971 Volume 3,711 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb-Zr-95 Cs-134 Cs-137 Ba/La-140 6.0 +/- 6.0 ; 6.1 8.7 + 9.5; 9.7

-2.3+/-5.2;5.2

-2.2 +/- 6.6 ; 6.6 0.8+ 11.4; 11.4 8.6 +/-4.7; 5.0

3.8+/-3.9;4.0 1.1 +/-5.6; 5.6 34.6 +/- 4.8;7.8 0.9 +/- 4.5 ; 4.5

-3.4 +/- 9.4 ; 9.4

-9.2 +/- 6.5 ; 6.7

-5.6 +/- 6.9 ; 7.0

-34.3 +/- 16.1 ; 17.3 6.1 +/- 6.2; 6.3 3.9 +/-7.1 ; 7.1 8.6 +/- 6.5 ; 6.7 6.3 +/- 5.8;5.9 6.1 3.5 ; 3.6 2.4 +8.1 ; 8.1

-4.9 4.8 ;4.9 2.0k 6.4; 6.4

-8.9 + 12.7; 12.8 3.7 +5.1 ; 5.2-4.3 +/- 4.8 ; 4.9

-3.9 I 5.5 ; 5.6 51.5 4 4.7;10.3 3.1 +4.7 ;4.7

-7.8 +/- 9.6 ; 9.7

-0.6 +/- 4.7 ; 4.7

1. 1 +5.7 ;5.7 11.8+/- 11.4; 11.6

-1.2 +/-5.6; 5.6 2.0 +/- 5.3 ; 5.3

-0.7 +/- 5.7 ; 5.7 10.3 +/- 5.7;6.0 III -15

LASALLE Table

3.

Milk Collection:

ODCM-Required LLDs:

Other LLDs:

Units:

Biweekly (May - October)

Monthly (November - April)

I-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L pCi/L Sample Description and Concentration L-42 (C) Biros Farm Date Collected Lab Code 01-02-03 LMI-30 02-06-03 LMI-538 03-06-03 04-03-03 LMI-967 LMI-1514 I-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba-140 La-140 Date Collected Lab Code I-131

-0.10+0.21 ;0.21 0.1 +/-2.9;2.9

-3.6 +/- 6.1 6.2 1.0+/-3.1 ;3.1 2.0+/-3.1; 3.1

-1.9 +/- 6.5; 6.5 1.6+/- 2.4 ;2.4 1.2 3.2 ;3.2 3.7+/-3.1 ;3.1 1.9 9.0 ;9.0

-4.6 +3.8; 3.9 05-01-03 LMI-2178 0.00 +/- 0.16;0.16

-0.03 +/-0.16 ;0.16

-3.0+/-4.2 ;4.3

-1.3 + 9.3 ;9.3 0.5 + 4.6 ;4.6 3.1 i 4.3; 4.3 1.6 + 10.5; 10.5 4.4+ 3.9 ;4.0

-4.2+ 5.1 ;5.1

-1.5+/-4.2 ;4.2

-10.0+/- 13.7; 13.8 2.6 +/-3.6 ; 3.6 05-15-03 LMI-2622,3 0.11 +/-0.14 ;0.14 0.04 +/-0.17 ;0.17 0.8+/-2.4;2.4

-2.5+/-5.3 ;5.3 2.9 +/- 2.6 ;2.6 1.1 +/- 2.4; 2.4 2.4+ 5.1; 5.1

-0.2+ 2.5 ;2.5 1.2+/-2.9;2.9

-3.1 +/-2.9 ;2.9 11.3+/-8.8 ;9.0

-1.0 +/-2.0; 2.0 05-29-03 LMI-2830 0.08 +/-0.18 ;0.18

-0.10 +0.19 ;0.19 0.6+/- 1.8; 1.8

-0.4 + 4.3 ;4.3 0.5 +/- 2.0; 2.0 1.2+/-2.3; 2.3 0.4+/- 5.6; 5.6 0.7+/- 1.9; 1.9 0.1 +2.1 ;2.1

-0.8+/-2.1 ;2.1

-7.9 +/- 7.3 ;7.4

-1.5 +/-2.0; 2.0 06-11-03 LMI-3187 0.10 +/- 0.19 ;0.19 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba-140 La-140 1.5+/- 3.5 ;3.5 0.5 +/-7.1 ;7.1 1.7+/-3.4 ;3.4 0.4+/-3.5; 3.5 3.1+/-8.9; 8.9

-1.5+/- 3.7 ; 3.7

-0.1+/-4.1 ;4.1 3.2 +/- 3.9 ; 3.9

-8.7 +/- 12.0; 12.1

-6.2 +/-4.3 ; 4.4 0.7 + 2.3 ; 2.3 0.0 +/- 4.6 ; 4.6 2.7 +/- 2.2 ; 2.2 1.5 +/- 3.1 ; 3.1 0.2 + 5.1 ; 5.1 0.1+/-1.9; 1.9 0.7 +/- 2.2 ; 2.2 1.7+/- 2.2 ;2.2

-9.1 + 7.6 ; 7.7

-2.5 +2.1; 2.1

-1.0 +/- 3.9; 3.9 0.6+/- 7.4 ;7.4

-1.4 +/- 3.9; 3.9

-0.4+/-3.7; 3.7

-1.0+/- 10.0; 10.0 0.1+/- 3.9 ;3.9 2.6+/-4.0; 4.1 3.3+/-3.8 ;3.8

-0.8 +/- 1 1.0 ; 1 1.0 0.8 +/-4.7 ; 4.7 2.1 + 2.3 ; 2.3 1.9 +/- 3.7; 3.7

-0.4 +/- 2.0 ; 2.0 0.2 + 2.3; 2.3

-2.4 +/- 5.7; 5.7 0.3+/- 2.1 ;2.1 1.5+/-2.4;2.4 0.2 +/- 2.3 ; 2.3 3.2 +/- 7.2 ; 7.2 0.7 +/-2.5 ; 2.5 II - 16

LASALLE Table

3.

Milk Collection:

ODCM-Required LLDs:

Biweekly (May - October)

Monthly (November - April)

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

Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L Units:

pCi/L Sample Description and Concentration Date Collected Lab Code L-42 (C) Biros Farm 07-10-03 LMI-3815 06-26-03 LMI-3452 07-24-03 08-06-03 LMI-4178 LMI-4569 I-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba-140 La-140 Date Collected Lab Code I-131

-0.08 +/-0.15 ;0.15

-0.7+/-2.1 ;2.1

-4.7+/-5.1 ;5.2

-2.2 +/- 1.9; 2.0

-0.5 +/- 1.8; 1.8 1.8 +/- 5.5; 5.5

-2.0+/- 1.8 1.8 2.1+/- 2.4 ;2.4

-1.9+/-2.7;2.7

-2.3 +/- 7.2 ;7.2

-3.2 +/-2.4; 2.5 08-21-03 LMI-4789 0.05 +/- 0.20 ;0.20 0.04 +/- 0.22 ; 0.22 2.5+/-2.2 ;2.2

-1.1 5.1 5.1

-1.4+/-2.1 ;2.1 1.3 2.3; 2.3

-5.7 +/- 6.2; 6.3

-3.0+/-2.3 ;2.4 0.9 2.8 ;2.8

-0.442.1 ;2.1

-2.8 +/- 7.4 ; 7.4 0.9 +/-1.9; 1.9 09-04-03 LMI-5044 0.00 +/- 0.13 ;0.13

-0.01 +/-0.16;0.16

-0.6+/-4.1 ;4.1 3.8 +/- 9.3 ;9.3

-1.9 +/- 3.7; 3.7

-0.2 +/- 5.0; 5.0 4.1 +/- 8.3; 8.3

-0.3 + 3.5 3.5

-4.6 +/- 5.2 5.2

-1.4 +/- 4.0 4.0 0.2+/- 11.6; 11.6

-2.3 +/-3.7 ; 3.7 09-18-03 LMI-5346 0.03 +/- 0.15 ;0.15

-0.06 +/-0.21 ;0.21

-0.2 +/- 1.7; 1.7

-0.4+/-5.1 ;5.1

-0.4 +/- 2.0; 2.0 1.6+/-2.3; 2.3 4.0 +/- 5.2; 5.3

-1.5+/- 2.2 ;2.2 0.4+/- 2.3 ;2.3 1.1+/- 2.2 ;2.2

-0.1 +/-7.8 ;7.8

-3.5 +/-2.3; 2.3 10-02-03 LMI-5655

-0.00 +/- 0.17 ;0.17 Mn-54 Fe-59 Co-58 Co-60 Zn-65 ZrlNb-95 Cs-134 Cs-137 Ba-140 La-140

-3.1 +/- 3.4; 3.4

-4.3 +/- 6.7 ; 6.8

-1.4+/- 3.3 ;3.3

-0.2 +/- 4.4; 4.4

-0.7 +/- 8.3; 8.3 3.6+/- 3.2 ;3.2 2.5 +/- 3.5 ; 3.6 1.4+/-3.6;3.6 14.4 +/- 10.0; 10.2 2.2 +/-4.0 ; 4.1

-0.1 +/- 2.8 ; 2.8

-11.6+ 6.3 ;6.5

-1.0 +/- 2.9; 2.9 2.0+/-3.5; 3.5

-5.1 +/- 7.4 ; 7.5

-0.0+/- 2.7 ;2.7

-0.8 +/-3.4;3.4 0.8+/-2.8 ;2.8 0.1+/- 9.8 ; 9.8

-2.8 +3.0 ; 3.1

-0.9 + 2.2 ; 2.2

-4.1 +4.8 ;4.8

-0.1 +/-2.1 ;2.1 1.0+/-2.5; 2.5

-4.7 +/- 6.8; 6.9 0.9+/- 2.1 ;2.1

-0.9 +/- 2.5 ; 2.5 0.1 +/- 2.2 ; 2.2 5.8+/-8.1 ;8.1 1.8 +/-1.9 ; 1.9

-0.6 +/- 1.9; 1.9 2.7 +/- 3.8 ; 3.8 0.2 +/- 1.8 ; 1.8

-2.5 +/- 2.3; 2.3 4.0 +/- 5.9; 5.9 1.2+/- 1.9 ;2.0

-0.7 +/- 2.4 ; 2.4

-1.8+/-2.2;2.3 2.0+/- 7.1 ;7.1

-0.2 +/-1.6 ; 1.6 III - 17

LASALLE Table 3.

Milk Collection:

ODCM-Required LLDs:

Other LLDs:

Units:

Biweekly (May - October)

Monthly (November - April)

I-131 = 1, Cs-134 = 15; Cs-137 = 18, Ba-140 = 60, La-140 = 15 pCi/L Mn-54 = 10; Fe-59 = 15; Co-58, Co-60 = 10; Zn-65 = 15; Zr/Nb-95 = 10 pCi/L pCi/L Sample Description and Concentration L-42 (C) Biros Farm Date Collected Lab Code 10-16-03 LMI-6127 10-30-03 LMI-6532 11-13-03 12-04-03 LMI-6887 LMI-7260 I-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba-140 La-140 0.16 +/-0.16 ;0.16

-1.7+/-3.2 ;3.2

-1.9 +/- 7.4; 7.5

-2.1 +/- 3.0 ; 3.0 1.4 +/-:3.5; 3.5 0.7:+/-:8.5; 8.5

-0.9 : 3.2; 3.2

-1.4 : 3.4 ; 3.4 1.4:1:3.4; 3.4 4.1+/-9.1 ;9.2

-1.5 +/-4.1 ; 4.1

-0.10 +/- 0.22 ;0.22

-2.6 +/- 3.5 ; 3.5 1.3+/-7.3 ;7.3 0.6:1:3.1 ;3.1 1.3+/-4.2; 4.2 1.0+/-9.0; 9.0

-0.3 +/- 3.2; 3.2

-2.5 + 4.0 ; 4.0

-0.7+/- 3.4; 3.4

-2.5+/- 11.6; 11.6 2.3 +/-2.8 ; 2.9 0.18 +/- 0.22 ;0.22

-1.8 +/- 2.5; 2.5 0.4 +/- 5.0; 5.0 0.8 +/- 2.3 ; 2.3 1.6+/- 1.5; 1.5 1.5+/-6.0; 6.0

-0.6 +/- 2.2 ;2.2

-0.3 +/- 2.3 ; 2.3 0.4+/-2.2 ;2.2

-5.6 +/- 7.9 ; 8.0

-0.5 +/-2.5 ; 2.5

-0.04 + 0.16 ;0.16

-0.4 + 3.7 ; 3.7

-7.0 +/- 7.7 ; 7.8

-1.7 +/- 2.6 ; 2.6 3.1+/-4.9; 5.0

-7.2 +/- 7.6; 7.7 1.3+/- 3.6 ;3.6 4.2 +/- 3.0; 3.0 1.7+/-3.8 ;3.8 2.1 +/- 12.7 ; 12.7 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 Lab Code 05-08-03 LF-2364 05-08-03 LF-2365 10-08-03 LF-5814 10-08-03 LF-5815 Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95.

Cs-134 Cs-137 Ba/La-140 Channel Catfish 0.7+/- 1.1; 1.1 1.1+/-2.3 ;2.3

-0.4 +/- 1.2; 1.2 0.1 +/- 1.1 ; 1.1

-2.8+/-3.1 ;3.1

-0.2+/- 1.1; 1.1 0.2+/-1.1; 1.1 0.3 +/- 1.2 ; 1.2

-0.5+/- 1.0; 1.0 Largemouth Bass

-0.2 + 0.8 ; 0.8

-2.0+/-2.1 ;2.1

-0.4 +/- 0.7 ; 0.7

-0.1 + 0.8 ; 0.8

-1.8 +/- 2.6 ; 2.6 0.9 +/- 0.7 ; 0.8

-0.5 + 0.8 ; 0.8 0.0 + 0.9 ; 0.9 0.9+/- 1.0; 1.0 Channel Catfish 0.3 +/- 0.7 ; 0.7

-0.4 +/- 1.9; 1.9

-0.1 + 0.9 ; 0.9 1.0+/- 0.9 ;0.9 0.5+/- 1.9; 1.9 0.8 +/- 0.7 ; 0.8 0.8 +/- 0.8 ; 0.8

-0.3 +/- 0.8 ; 0.8

-0.4 +/- 0.7 ; 0.7 Smallmouth Bass 0.3 +/- 0.9 ; 0.9 0.2 +/- 2.0; 2.0

-0.2 +/- 0.7 ; 0.7 0.4 +/- 1.2 ; 1.2 0.1+/- 2.6 ; 2.6 1.0+/- 0.8; 0.8

-0.5 +/- 1.1 ; 1.1 0.4 +/- 1.0 ; 1.0

-1.5 + 0.8 ; 0.8 III - 19

Table 4.

Fish, Edible Portio Collection:

ODCM-Required LLDs:

LASALLE

,ns Semiannually 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 ZrINb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight 10 2 pCi/g wet weight Other LLDs:

Units:

Sample Description and Concentration L-35 (C) Marseilles Pool of Illinois River Date Collected Lab Code 05-08-03 LF-2368 05-08-03 LF-2369 10-08-03 LF-5812 10-08-03 LF-5813 Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 Cs-134 Cs-137 Ba/La-140 Channel Catfish

-0.0 + 0.7 ; 0.7 1.3 +/- 1.7 ; 1.7

-0.3 +/- 0.7 ; 0.7 0.1 +/- 1.0; 1.0

-1.5d 2.1 ;2.1 1.6 + 0.8 ; 0.9

-0.1 +/- 0.7; 0.7 1.0. 0.8 ; 0.9 0.2 +0.9 ; 0.9 Freshwater Drum

-0. I0.8;0.8 1.6 + 1.8 ; 1.8 0.0 + 0.7 ; 0.7 0.1 -4 1.0 ; 1.0 1.4 +/-2.3 ; 2.3

-0.3 +/- 0.7; 0.7 0.5+ 1.0; 1.0 0.3 +/-0.8 ;0.8 1.9 +0.9 ; 0.9 Channel Catfish

-0.4 +/- 0.9 ; 0.9 1.4 +/-2.0 ; 2.0 0.6+/-0.8 ;0.8 0.8 +/- 0.9 ; 0.9

-0.5 +2.1 ; 2.1 0.5 0.8;0.8

-0.1 +/- 0.9 ; 0.9

-0.4 +/- 0.9 ; 0.9

-0.1 +/- 1.0; 1.0 Smallmouth Buffalo 0.2 +/- 0.9 ; 0.9 0.1 +/- 1.9; 1.9 0.2 4 0.8 ; 0.8 1.0 4 0.9 ; 0.9

-1.2 +/- 1.9; 1.9

-0.4 +/- 0.9 ; 0.9 0.8k 1.0; 1.0

-1.0 +/- 0.9 ; 0.9 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 Lab Code 05-08-03 LF-2366 05-08-03 LF-2367 10-08-03 LF-5810 10-08-03 LF-5811 Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 Cs-134 Cs-137 Ba/La-140 Channel Catfish 0.5 4 0.8; 0.8

-0.7 +/-2.1 ; 2.1 0.5 +/- 0.7 ; 0.7

-0.1 + 1.1 ; 1.1 0.9 +/- 2.2 ; 2.2 0.2 +/- 0.7 ; 0.7

-0.3 +/- 1.0; 1.0 0.9d 1.0; 1.0

-0.5 + 0.7 ; 0.7 Smallmouth Buffalo

-0.2 +/- 0.8 ; 0.8

-2.2 4 1.8 ; 1.8

-0.3+/- 0.8; 0.8

-0.3 + 0.8 ; 0.8 0.7 +/- 2.3 ; 2.3

-0.8 +/- 0.7 ; 0.7

-0. 1 +/- 1.0 ;' 1.0

-0.6 +/- 1.0; 1.0 0.3 +/- 0.8 ; 0.8 Channel Catfish 0.8 +/- 0.9 ; 0.9

-0.4 +2.1 ; 2.1

-0.2 +/- 0.9 ; 0.9 0.1 +/- 1.2 ; 1.2

-1.8 +/-2.8; 2.8

-0.9g0.9; 1.0 0.8 k 1.0 ; 1.0 0.5 A 0.8 ; 0.8

-0.2 + 1.0; 1.0 Common Carp

-0.4 + 0.5 ; 0.5 1.0 1.0; 1.0 0.2 + 0.4 ; 0.4 0.4 +/- 0.5 ; 0.5

-1.4+/- 1.4; 1.4 0.0 +/- 0.5 ; 0.5 0.6 +/- 0.5 ; 0.5 0.1 +/- 0.4 ; 0.4

-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 LBS-5698 Lab Code LBS-2626 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 Cs-134 Cs-137 Ba/La-140 0.2+/- 1.0; 1.0

-1.14 2.2 ; 2.2

-0.2 + 0.9 ; 0.9 1.2+/- 1.2; 1.2

-0.3 +/- 3.0 ; 3.0

-1.4+/- 1.2; 1.2 0.7+/- 1.1; 1.1 3.8 +/- 2.2 ; 2.3

-1.8 +/- 1.2; 1.2 0.0 +/- 0.7 ; 0.7

-0.8+/- 1.8; 1.8

-0.2 +/- 0.9 ; 0.9 0.2 +/- 0.9 ; 0.9

-1.6 +/- 2.0; 2.1

-3.7+/- 0.9; 1.1 0.4+/- 1.0; 1.0 1.0+/- 0.9; 0.9

-0.9 +/- 0.5 ; 0.5 L-41 Illinios River Downstream Date Collected 05-15-03 LBS-2627 10-02-03 LBS-5699 Lab Code Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 Cs-134 Cs-137 Ba/La-140 0.9+/- 1.0; 1.0

-0.7 +/- 2.5 ; 2.5

-0.6 +/- 0.9 ; 0.9 0.7 +/- 1.3 ; 1.3 2.9+/-2.6;2.7

-2.1 +/- 1.2; 1.2 2.0+/- 1.2; 1.2 6.4+/-2.4;2.6 1.0+/- 1.0; 1.0 0.2 +/- 1.4 ; 1.4 1.7+/-3.4;3.4

-0.0 +/- 1.2; 1.2 1.6+ 1.8; 1.8

-9.3 +/- 4.9 ; 5.0

-2.8+/- 1.6; 1.6

-0.5 +/- 1.7; 1.7 3.0 + 1.7 ; 1.8

-3.7+/-1.3; 1.4 III -22

LASALLE Table

6.

Vegetation Collection:

ODCM-Required LLDs:

Other LLDs:

Units:

Annually I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight 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 10.2 pCi/g wet weight Sample Description and Concentration T~nnre ftr V--eyna (01--antc L--_UI.tU

-U I

U9G~

-I 1-

".l Date Collected Lab Code 09-04-03 LVE-5120 Cabbage 09-04-03 LVE-5121 Type Onions Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 I-131 Cs-134 Cs-137 Ba/La-140

-0.6 +/- 0.8 ; 0.8

-0.4 +/- 1.6; 1.6 0.0 +/- 0.7 ; 0.7 0.5 +/- 0.8 ; 0.8 0.3 +/- 2.0 ;2.0

-0.3 +/- 0.7 ;0.7 1.1 +/-0.7 ;0.7 0.4+0.8 ;0.8 0.2 +/- 0.9 ; 0.9

-0.9 i 0.7 ;0.7

-0.4 +/- 0.8 ; 0.8 1.5+/- 1.2; 1.3 0.7+/- 0.8; 0.8

-0.6 +/- 1.2 ; 1.2 1.1 +/- 1.9 ;2.0

-1.0 +/- 0.7 ;0.7 0.4 4 0.6 ;0.6

-0.0 + 0.9 ; 0.9 0.4 +/-0.8 ;0.8 0.1 +/-0.8 ;0.8 Date Collected L-Ouad 1 Diane Partridge 09-04-03 LVE-5111,2 Cabbage 09-04-03 Lab Code LVE-5113 Type Beets Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 I-131 Cs-134 Cs-137 Ba/La-140 0.2 +/- 0.4 ; 0.4

-0.1 +/- 54.9 ; 54.9

-0.1 +/- 0.5 ; 0.5

-0.0 +/- 0.5 ; 0.5

-1.2 +/- 1.2 ;1.2 0.4 +/- 0.4 ;0.4

-0.4 +/- 0.5 ;0.5 0.2 +/- 0.6 ; 0.6 0.1 +/-0.5;0.5

-0.1 +/-0.4 ;0.4

-0.2 +/- 0.7 ; 0.7

-0.5 +/- 1.5; 1.5

-0.8 +/- 0.7 ; 0.7 0.7 +/- 0.8 ; 0.8 1.2 +/- 1.9 ;1.9

-0.3 +/- 0.7 ;0.7 0.3 +/- 0.6 ;0.6

-0.4 +/- 0.9 ; 0.9

-0.1 A0.8;0.8 0.1 +/-0.5 ;0.5 III -23

LASALLE Table

6.

Vegetation Collection:

ODCM-Required LLDs:

Other LLDs:

Units:

Annually I-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight 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 10 2 pCi/g wet weight Sample Description and Concentration L-Ouad 2 Mike & Gina Welbourne Date Collected Lab Code 09-04-03 LVE-5114 Cabbage 09-04-03 LVE-5115 Type Beets Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 I-131 Cs-134 Cs-137 Ba/La-140

-0.3 +/- 0.8 ; 0.8 0.7+/- 1.6; 1.6

-0.0 + 0.9 ; 0.9

-0.6 + 1.0; 1.0

-1.3 +/- 1.8 ;1.8 0.2 +/- 0.8 ;0.8 0.4 +/- 0.9 ;0.9

-0.5 + 0.9 ; 0.9

-0.0 +/- 0.9 ; 0.9 0.3 +/- 0.8 ;0.8 0.6 +/- 0.5 ; 0.5 0.7+ 1.4; 1.4

-0.3 +/- 0.4 ; 0.4 0.8 + 0.6; 0.6 0.5 + 1.5 ;1.5

-0.3 a 0.6 ;0.6 0.1 +/-0.4 ;0.4

-0.2+/- 0.6; 0.6 0.1 +/-0.6;0.6 0.0 +/- 0.5 ;0.5 L-Quad 3 Michael Olson Date Collected Lab Code 09-04-03

LVE-5116 Cabbage 09-04-03 LVE-5117 Type Potatoes Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 I-131 Cs-134 Cs-137 BaILa-140 0.5 + 0.5 ; 0.5 0.1 +/- 0.8 ; 0.8

-0.4 +/- 0.5 ; 0.5

-0.5 +/- 0.6 ; 0.6

-1.1 +/- 1.2 ;1.3

-0.2 + 0.4 ;0.4 0.5 +/- 0.4 ;0.4

-0.2 +/- 0.5 ; 0.5 0.2 +/- 0.5 ; 0.5 0.5 + 0.4 ;0.4 0.3 +/- 0.5 ; 0.5

-1.1 +/- 1.1 ; 1.1

-0.1 +/- 0.5 ; 0.5 0.0 +/- 0.8 ; 0.8 0.9 +/- 1.1 ;1.1

-0.2 +/- 0.5 ;0.5

-0.3 +/- 0.5 ;0.5

-0.0 +/- 0.6 ; 0.6

-0.7 +/- 0.6 ; 0.6

-0.1 +/- 0.5 ;0.5 III -24

LASALLE Table

6.

Vegetation Collection:

ODCM-Required LLDs:

Other LLDs:

Units:

Annually 1-131 = 0.06, Cs-134 = 0.06, Cs-137 = 0.08 pCi/g wet weight 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 102 pCi/g wet weight Sample Description and Concentration L-Ouad 4 Robert Eisers Date Collected Lab Code 09-04-03 LVE-5118 Cabbage 09-04-03 LVE-5119 Type Potatoes Mn-54 Fe-59 Co-58 Co-60 Zn-65 Nb/Zr-95 I-131 Cs-134 Cs-137 Ba/La-140

-0.4 +/- 0.5 ; 0.5

-0.3 + 1.3; 1.3

-0.2 + 0.5 ; 0.5 0.2 + 0.5 ; 0.5 0.1 +1.4;1.4

-0.2 +/- 0.5 ;0.5

-0.6 4 0.5 ;0.5 0.2 + 0.7 ; 0.7

-0.3 4 0.6 ; 0.6

-0.1 + 0.4 ;0.4

-0.2 + 0.6 ; 0.6

-0.3 +/- 1.0; 1.0

-0.2 + 0.6 ; 0.6

-0.2 + 0.7 ; 0.7 0.1 +/-1.3;1.3

-0.9 +/- 0.6 ;0.6 0.2 + 0.5 ;0.5

-0.4 +/- 0.6; 0.6

-0.3 + 0.6 ; 0.6

-0.1 +/- 0.5 ;0.5 III -25

LASALLE Table

7.

Surface Water Collection:

ODCM-Required LLDs:

Units:

Monthly composites of weekly collections Gross Beta = 4, 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 pCi/L Sample Description and Concentration L-21 (C) Illinois River at Seneca 2003 Collection Period Lab Code January February LSW-989 March LSW-1487,8 LSW-501 Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 5.4+/-1.1 ;1.4

-0.5+/- 2.9; 2.9

-8.9+/- 6.6; 6.7

-2.6+/- 3.0; 3.0 0.5+/- 3.8; 3.8 2.4 6.7 ;6.7 13.5+/- 6.5; 6.8 4.9+/- 3.5 3.6

-0.1+/-3.9; 3.9

-0.3+/-3.0 ;3.0

-12.8+/- 10.8 ; 10.9 7.9+/- 3.5; 3.6 April LSW-2493 5.7+/- 1.3; 1.5 6.6 +/- 1.2 ;1.6 2.6+/- 3.1 ;3.2

-1.8+/- 5.3; 5.3 0.5+/- 3.3; 3.3 0.4+/- 3.5; 3.5 4.4+/- 6.1; 6.1

-2.8+/- 7.5; 7.5 2.4+/- 3.3 3.3 2.4+/- 3.9; 3.9

-0.6+/- 3.1 ;3.1

-10.4+/- 10.4; 10.5 4.3+/- 2.9; 3.0 May LSW-2959 4.8+/- 1.1 ;1.3 7.2+/- 0.9 1.2

-1.0+/- 1.5; 1.5

-3.1+/- 3.8; 3.8

-1.3+/- 1.6; 1.6 1.2+/- 1.9; 1.9

-2.9+/- 3.9; 3.9 2.4+/- 2.9; 2.9

-0.3 +/- 1.6; 1.6 1.6+/-2.1 ;2.1 0.8+/- 1.6; 1.6

-5.8+/- 6.0; 6.0 1.1+/- 2.3; 2.3 June LSW-3854 5.0 + 1.2 ; 1.4 2003 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140

-0.1+/- 0.9 ; 0.9

-1.9+/- 1.5 ; 1.6

-0.4+/- 1.0; 1.0 1.5+/- 1.1 ; 1.1

-0.4+/- 2.1 ; 2.1 1.2+/- 1.9; 1.9 0.6+ 1.0; 1.0 0.1+/- 1.0; 1.0 0.2+/- 1.1 ; 1.1

-5.1+/-3.9 ;4.0 5.1+/- 1.2 ; 1.4 1.0+ 2.3 ; 2.3

-6.0+/- 5.6 ; 5.7

-1.8+/- 2.6 ; 2.6

-1.4+/- 3.3 ; 3.3

-0.4+ 3.9 ; 3.9

-5.6+/- 6.2; 6.2

-2.5+3.0; 3.1

-2.7+ 2.8 ; 2.8

-1.3+/- 3.3 ; 3.3 8.8+/- 8.4; 8.5

-6.0+/- 3.7 ; 3.8 1.1+ 1.1 ; 1.1 0.94 2.0 ; 2.0 0.2+/- 1.0; 1.0

-0.8+/- 1.2 ; 1.2

-1.2:+/- 2.2 ; 2.2 0.7+/- 2.5; 2.5 0.24 1.1; 1.1 1.1+/- 1.2 ; 1.2

-0.2+/- 1.2 ; 1.2 1.1+/-3.9 ;3.9

-3.7+/- 1.3; 1.4 III -26

LASALLE Table

7.

Surface Water Collection:

ODCM-Required LLDs:

Units:

Montly composites of weekly collections Gross Beta =4, 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 pCifL pCi/L Sample Description and Concentration L-21 (C) Illinois River at Seneca 2003 Collection Period Lab Code July August LSW-5074 September LSW-5568 LSW-4377 Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 2003 Collection Period Lab Code Gross Beta 3.5+/- 1.4; 1.5

-1.9+/- 3.1; 3.2 4.3+/- 5.9 ;5.9 1.7+/- 2.8 ;2.9

-0.4+/- 3.7; 3.7 5.6+/- 6.0; 6.1

-0.5+/- 6.0; 6.0

-0.7+/- 2.9 ; 2.9 1.4+/- 3.6; 3.6

-0.2+/- 3.5 ;3.5 5.0+/- 10.5 ; 10.5

-3.2 +/- 4.4; 4.5 October LSW-6709 6.9+/- 1.2; 1.6 5.2+/- 1.3 1.5 0.2+/- 1.2; 1.2

-0.5+/- 2.2; 2.2

-0.1+/- 1.0; 1.0

-0.8+/- 1.3; 1.3 2.1+/- 2.1 2.1 0.9+/- 2.3; 2.3

-0.2+/- 1.1 1.1

-0.6+/- 1.5; 1.5 0.4+/- 1.3; 1.3

-1.2+/-4.1 4.1

-2.5+/- 1.4; 1.5 November LSW-7353 5.1+/- 1.1 ;1.3 5.3 +/- 1.1 1.4

-1.3+/- 1.7; 1.8

-2.9+/- 4.1; 4.1

-0.2+/- 1.8; 1.8 0.2+/- 2.1; 2.1

-1.94 3.8; 3.9 3.1+/- 3.3; 3.4

-0.5 +/- 1.9; 1.9 0.2+/- 2.0; 2.0

-0.2+/- 2.0; 2.0 6.3+/- 6.7 ;6.8 2.0+/- 2.1; 2.1 December LSW-7728 4.4+/- 1.1 ; 1.3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 1.1+/-2.0; 2.0

-1.5+/- 4.4 ; 4.4

-2.9+/- 2.1 ; 2.2

-1.4+ 2.7 ; 2.7

-0.5+/- 4.6 ; 4.6

-2.0+/- 6.0; 6.0

-2.8 + 2.3.2.3

-3.8+/- 3.6 ; 3.6 0.3+/- 3.3 ; 3.3

-9.1+/- 11.4 ; 11.5 2.6+/- 2.6 ; 2.6 3.0+/- 3.4 ; 3.4

-0.44 5.5 ; 5.5 3.7+/- 3.0 ; 3.0 1.6+/- 4.1 ; 4.1

-1.8+/- 5.8 ; 5.8 5.9+/- 6.4; 6.4 3.4+/- 3.2 3.2 0.8+/-3.8 ;3.8 0.9+/-3.1 ;3.1 19.4+/- 11.2 ; 11.6

-8.5+/- 3.7 ; 3.9

-0.3+/- 3.7 ; 3.7

-7.6+/- 6.9 ; 7.0 1.5+/- 3.0 ; 3.0

-0.5+/- 3.6 ; 3.6 1.1+/- 6.0 ; 6.0 4.9+/- 7.1 ; 7.2 0.1+/- 3.6; 3.6 3.9+/- 3.5 ; 3.5 1.9+ 3.3 ; 3.3

-6.2+/- 12.1 ; 12.2

-3.3+/- 3.5 ; 3.5 III -27

LASALLE Table

7.

Surface Water Collection:

ODCM-Required LLDs:

Units:

Monthly composites of weekly collections Gross Beta = 4, 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 pCi/L Sample Description and Concentration L-40 Illinois River Downstream 2003 Collection Period Lab Code January February LSW-990 March LSW-1489 LSW-502 Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 5.7 + 1.3 ;1.6

-1.3+/- 2.4 ;2.4 6.1+ 4.3 ;4.4

-1.0+ 1.5; 1.5 0.1 +/- 2.2 ; 2.2

-2.7+/- 4.6; 4.6

-0.6+/- 5.2; 5.2

-2.1+/- 1.6; 1.6

-2.6+/-2.8; 2.8 2.0+ 2.5 ;2.5 9.9+/-7.1 ;7.3 1.6+/- 2.5; 2.5 April LSW-2494 5.4 +/- 1.4 ; 1.6 6.6+/- 1.2 ;1.6 0.2+/- 1.6; 1.6 1.4+/- 3.4; 3.4 0.2+/- 1.7; 1.7 2.5+/- 1.9; 1.9

-3.1+/- 3.7 ;3.7 1.3+/- 3.5; 3.5

-0.4+/- 1.7; 1.7

-0.4+/- 1.7; 1.7 1.2+/- 1.8; 1.8

-1.1+/-6.7 6.7 3.3+/- 1.8; 1.8 May LSW-2960 6.6+ 1.2 ; 1.6 7.3 1.3; 1.7 0.1 1.4; 1.4

-1.7+/- 2.5 ;2.5 0.6+/- 1.5; 1.5 0.5+/- 1.7; 1.7

-0.6+/- 3.0; 3.0

-0.2+/- 3.2; 3.2

-1.4+/- 1.6; 1.6 0.7+/- 1.7; 1.7

-0.8+/- 1.8 ; 1.8 5.9+/- 4.9; 5.0

-1.5+/- 1.7; 1.7 June LSW-3855 4.8+/- 1.3; 1.5 2003 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 0.6+/- 1.1 ; 1.1 2.1+/-2.6; 2.6 2.4+/- 1.2 ; 1.2 1.8+/- 1.4 ; 1.5

-4.3+/- 3.3 ; 3.4 1.3+/- 3.7; 3.7 0.9+/- 1.4; 1.4

-0.4+/- 1.5 ; 1.5

-0.7+/- 1.6 ; 1.6 2.4+/- 5.8; 5.8 5.1 +/- 1.2; 1.4

-1.8+/- 1.9 ; 1.9 0.6+/- 3.3 ; 3.3 0.7+/- 1.6; 1.6 0.6+/- 2.2 ; 2.2

-0.4+/- 3.7 ; 3.7

-2.2+/- 4.0 ; 4.0.

-0.5+/- 1.8 1.8

-0.4+/- 2.3; 2.3 0.1+2.2 ;2.2 3.4+/- 6.5 ; 6.5 3.5+/- 2.2 ; 2.2 0.1+ 1.1 ; 1.1

-1.2+ 2.2 ; 2.2

-0.2+/- 1.2 ; 1.2 0.3+/- 1.4; 1.4

-1.0+/- 2.4 ; 2.4

-0.7+/- 2.2; 2.2 0.4+/- 1.0; 1.0 1.9+/- 1.2 ; 1.3 0.2+/- 1.2 ; 1.2

-10.1+/- 4.1 ; 4.3

-5.8+ 1.5 ; 1.7 III -28

LASALLE Table

7.

Surface Water Collection:

ODCM-Required LLDs:

Units:

Monthly composites of weekly collections Gross Beta = 4, 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 pCi/L Sample Description and Concentration L-40 Illinois River Downstream 2003 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 July LSW-4378 4.4 1.4; 1.6

-0.1+/- 2.7; 2.7

-4.3+/- 5.5; 5.5 0.3: 3.5; 3.5 2.3+/- 3.4; 3.4 0.9+/- 6.3; 6.3 4.4:+/- 5.6; 5.7 0.1+/-3.0.3.0 0.8+/- 3.0; 3.0

-1.5+/-2.8 ;2.8 7.8+/- 8.3; 8.4 3.3+/- 2.5; 2.5 October LSW-6710 4.8+/- 1.1 ; 1.3 August LSW-5075 5.3:+/- 1.2 ;1.4

-1.4+/- 2.4; 2.4

-1.3: 3.5 ; 3.5

-1.8:

2.0 ;2.1

-0.2:

2.3; 2.3 0.3+/- 4.2; 4.2 3.8:1 4.4 ;4.4

-0.9+/- 1.8 ; 1.8

-2.0+/- 2.8; 2.8 0.4+/- 2.0; 2.0 2.5+/- 7.2 ;7.2

-0.8+/- 3.2; 3.2 November LSW-7354 6.3+/-1.1 ;1.5 September LSW-5569 5.0+/- 1.1 ;1.3 1.0+/- 1.6; 1.6 0.2+/- 2.8; 2.8

-0.6+/- 1.4; 1.4 1.1+/- 1.5; 1.5 0.5+/- 4.0; 4.0

-3.2+/- 3.4; 3.4 1.4+/- 1.5; 1.5 1.0+/- 1.6; 1.6

-0.3+/- 1.5; 1.5

-5.3+/- 6.7; 6.7

-0.7+/- 1.9; 1.9 December LSWV-7729 4.9 + 1.1; 1.3 2003 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 0.1+/- 1.7 ; 1.7

-0.8+/- 3.6 ; 3.6 0.4+/- 1.6; 1.6 1.6+/- 1.6; 1.6 1.6+ 3.6; 3.6

-3.9+/- 4.0; 4.1 0.5+/- 1.8; 1.8

-1.2+/- 1.9 ; 1.9 2.5+2.1 ;2.1

-2.4+/-5.5 ;5.5

-3.2+ 1.9 ; 1.9

-0.2+/- 2.2 ; 2.2

-1.1 I3.3 ; 3.3 0.6+/- 1.9 ; 1.9 1.1+/- 2.2 ; 2.2 1.7+ 4.5 ; 4.5

-2.5+/- 4.4 ; 4.5 0.1+/- 1.9; 1.9 2.7+/- 2.4; 2.4 1.2+/-2.3 ;2.3

-10.1+/-8.2; 8.4 3.2+/- 2.1 ; 2.2

-4.5+/- 3.7 ; 3.7

-2.9+/- 6.7 ; 6.7

-3.1+/- 3.5 ; 3.6

-2.6+/- 3.9 ; 3.9

-9.4+/- 9.0 ; 9.1

-11.4+/- 8.5; 8.7

-1.2 +/- 3.7; 3.8 0.3+/- 3.6; 3.6

-0.9+/- 2.8 ; 2.8

-13.3+/- 12.1 ; 12.2 5.5+/-4.1 ;4.2 III -29

LASALLE Table

7.

Surface Water Collection:

Required LLD:

Units:

Quarterly composites of weekly collections H-3 = 200 pCi/L pCi/L 2003 Sample Description and Concentration Collection Period Lab Code Tritium L-21 (C) Illinois River at Seneca I st Quarter 2nd Quarter 3rd Quarter 4th Quarter LSW -

LSW -

LSW-LSW -

1463 3640 5549 7711 1,340+/- 130;224 247 +/- 90; 96 434 + 99; 115 215+/- 90 ;94 L-40 Illinois River Downstream 1 st Quarter 2nd Quarter 3rd Quarter

.4th Quarter LSW-1464 LSW-3641 LSW-5550 LSW-7712 1,6824 140;268 205+/- 88;92 401+/- 98;112 268+ 92;99 III -30

LASALLE Table

8.

Well Water Collection:

ODCM-Required LLDs:

Units:

Quarterly 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 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 H-3 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 Date Collected Lab Code H-3 LWW-162

-16+/- 64 ;64

-0.1 +/-1.7; 1.7

-1.0 +/-2.7 2.7

-0.8+/-1.4; 1.5 0.6 +/-1.5; 1.4

-1.2 +/-3.7 ;3.7 0.9 +/-3.2; 3.2

-0.5 +/-1.9; 1.9 1.4+/-1.5 ; 1.5

-0.4 +/-1.7; 1.7

-12.1 +/-5.7; 6.0

-2.0+/- 1.8 ;1.8 01-09-03 LWW-163

-88+/- 60;61 LWW-1770,1

-18+/- 45 ;53 0.9 +/-1.4; 1.4

-1.2 +/-2.6; 2.6

-0.6 +1.4 1.5

-0.2 +/-1.5 1.4

-1.3 + 3.4 3.4 1.2 +3.3 3.3

-2.4 +/-41.6; 1.6

-1.1 +/- 1.4; 1.4

-0.3 4 1.6; 1.6 7.7 4 5.6 ;5.7 1.0+/- 1.8 ;1.8 L-28 Marseilles Well 04-10-03 LWW-1772

-5 4 65 ; 65 LWW-3891 14+/- 84 ;84

-0.7 +/-1.6 1.6 4.0 +/-3.1 ;3.2 0.5 +1.9 ;2.0 0.9 +/-2.0; 1.9 3.0+/-4.1 ;4.2

-5.5 +4.1; 4.2 0.3 +/-1.9; 1.9 0.2 +2.5 ;2.5 1.3 +/-2.0; 2.1

-0.4 +/-7.4; 7.4

-1.6+2.1 ;2.1 07-10-03 LWW-3892

-12+ 83 ;83 LWW-6351 35+/- 86;86

-1.2 +/-2.2 ;2.2

-2.2 +/- 5.0; 5.0 2.2 +/-2.3 2.7

-1.6 +/-2.7 ;2.3

-3.9 +/- 4.2 4.3 1.1 +/-5.1; 5.1

-4.1 +/-2.8;2.9

-0.7 +/-2.3 ;2.3

-1.0 +/-2.9; 2.9 3.2 +/-6.3; 6.3 0.6 +/-3.2 ;3.2 10-09-03 LWW-5911

-45+/- 79;79 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 0.6 +/-1.5 ; 1.5

-0.9 +/- 3.6 ; 3.6

-0.9 +1.6; 1.9 0.5+1.9; 1.6 0.5 +3.5 ; 3.5 0.1 +4.1 ;4.1

-1.0 + 1.9; 1.9

-0.3 +1.8 ; 1.8

-0.7 +/-2.2; 2.2 1.1 I7.4;7.4 0.2 +/-1.8 ;1.8

-1.7 +/- 3.4; 3.4 1.1 46.9 ; 7.0 0.3 +/-3.3; 4.3

-0.8 +/-4.3; 3.3 4.1 +7.5 ;7.5

-4.4+/-7.1 ;7.2

-3.6 +/-3.1 ; 3.1 0.2 +/-4.0; 4.0 3.5 43.5 ; 3.5

-1.0 +/-11.7; 11.7 0.2+/-3.1 ;3.1 0.3 +/-1.7 ; 1.7 1.4 +/-2.5; 2.5 0.3 +/-1.3 ;2.1 0.7 +/-2.1 ; 1.3

-2.2 +/-4.5; 4.5

-1.7 +/-3.8 ; 3.8 2.0 +/-1.5; 1.6 1.1 +/- 1.9; 1.9 0.3 +/-2.1 ; 2.1

-3.5 +/-6.7 ; 6.7

-3.9 +/- 2.4; 2.5 0.4 +/-1.8 ;1.8 3.4 +/-3.5 ;3.5 1.2 +/-1.8; 1.9 0.3 +/-1.9; 1.9

-2.1 +/-4.1 ;4.1

-5.7 +/-3.4 ;3.5

-0.6 +/- 1.6; 1.6 0.8 +/-2.1 ;2.1

-0.1 +/-1.7; 1.7

-5.0 +/- 6.2 ; 6.2

-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 A

N 4.0 miles B

NNE 1.7 miles C

NE 3.5 miles D

ENE 3.8 miles E

E None F

ESE None G

SE 4.7 miles H

SSE 4.7 miles J

S 4.7 miles K

SSW None L

SW 5.8 miles M

WSW None N

W 3.0 miles P

WNW 3.0 miles Q

NW 4.0 miles R

NNW 4.6 miles Census conducted by A. Lewis on August 25,2003 Livestock No.

12 cattle 20 cattle 25 cows - cattle 17 cattle None None 21 cows - cattle 16 cows - cattle 8 cattle None 15 cows None 9 cows - cattle 12 cattle 15 cows - cattle 5 cows - cattle m-34

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

Sector A

B C

D E

F G

H J

K L

M N

p Q

R Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Distance 3.9 miles 1.6 miles 2.1 miles 3.3 miles 3.2 miles 1.4 miles 1.7 miles 1.8 miles 1.5 miles 0.7 miles 1.0 miles 1.5 miles 0.8 miles 0.9 miles 1.8 miles 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 Site Description Gamma Radiation Measured in mR by TLDs Quarter 1 Quarter 2 2003 2003 Quarter 3 2003 Quarter 4 2003

b. Inner Ring (100 Series)

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

Annual Inner Ring Mean +/- S.D.

c. Outer Ring (200 Series) 24.4 +/-2.5 L-201-3 L-201-4 L-202-3 L-202-4 L-203-1 L-203-2 L-204-1 L-204-2 L-205-1 L-205-2 L-205-3 L-205-4 L-206-1 L-206-2 L-207-1 L-207-2 L-208-1 L-208-2 L-209-1 L-209-2 L-210-1 L-210-2 L-21 1-1 L-211-2 L-212-1 L-212-2 L-213-3 L-213-4 L-214-3 L-214-4 21.0 24.0 22.0 19.0 23.0 23.0 26.0 26.0 23.0 24.0 26.0 25.0 25.0 26.0 23.0 22.0 24.0 26.0 23.0 24.0 26.0 26.0 27.0 28.0 25.0 28.0 23.0 26.0 26.0 26.0 21.0 23.0 24.0 21.0 22.0 21.0 26.0 24.0 25.0 22.0 22.0 23.0 24.0 23.0 21.0 28.0 24.0 27.0 24.0 26.0 23.0 26.0 25.0 14.0 25.0 25.0 24.0 24.0 24.0 25.0 18.0 23.0 20.0 20.0 21.0 22.0 24.0 23.0 22.0 23.0 23.0 23.0 23.0 23.0 20.0 23.0 24.0 24.0 24.0 23.0 25.0 25.0 24.0 24.0 24.0 24.0 23.0 20.0 20.0 22.0 22.0 27.0 23.0 24.0 27.0 27.0 29.0 25.0 26.0 28.0 25.0 28.0 25.0 28.0 26.0 25.0 26.0 28.0 24.0 26.0 30.0 29.0 25.0 30.0 26.0 28.0 23.0 24.0 39.0 25.0 TII-38

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

L-215-3 L-215-4 L-216-3 L-216-4 28.0 27.0 26.0 26.0 24.8 +/-2.1 24.6 +/-2.1 25.0 25.0 24.0 24.0 23.6 i2.4 23.2 +2.1 Quarter 3 2003 24.0 24.0 23.0 22.0 22.6 +/-1.7 22.4 +/-1.8 Quarter 4 2003 26.0 29.0 28.0 24.0 26.6 +/-3.0 24.4 +/-2.8 26.5 +/-2.3 24.2 +/-2.6 Outer Ring Mean +/- S.D.

Annual Outer Ring Mean +/- S.D.

INDICATOR LOCATION MEAN +/- S.D.

Annual INDICATOR MEAN +/- S.D.

II. CONTROL LOCATIONS L-10-1 STREATOR L-10-2 STREATOR CONTROL LOCATION MEAN +/- S.D.

Annual CONTROL LOCATION MEAN +/- S.D.

21.0 21.0 21.0 +/-0.0 20.0 21.0 20.5 +/-0.7 20.0 19.0 19.5 +/-0.7 23.0 23.0 23.0 +/-0.0 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 C.)

"a 0

6.0 4.0 2.0 0.0 i-01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 Figure 1. Continuous collection with weekly exchange of particulate filter.

12-31-03 L-03 Onsite No. 3 E

C-,

a.

CI9W 0

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

12-31-03 m-41

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

C,'

9LU CD 6.0 4.0 2.0 0.0 i-12-31-94 12-31-95 12-30-96 12-30-97 12-30-98 Figure 3. Continuous collection with weekly exchange of particulate filter.

12-30-99 L-06 Nearsite No. 6 10.0 8.0 V)E C,'

9eI 0

6.0 4.0 2.0 0.0 1-12-31-94 12-31-95 12-30-96 12-30-97 12-30-98 Figure 4. Continuous collection with weekly exchange of particulate filter.

12-30-99 111-42

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 Figure 6. Monthly composites of weekly collections.

12-31-03 L-40 Illinois River Downstream 10.0 8.0 6.0 4.0 0.

0.0 1 1

i I

I 01-01-99 01-01-00 12-31-00 12-31-01 12-31-02 Figure 7. Monthly composites of weekly collections.

12-31 -03 mH-44

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

-j C.a.

1400 - -

1300 - -

1200 - -

1100 -.

1000 -.

900 -.

800 -.

700 -.

600 - -

500- -

400 - -

300 -.

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

12-31-03 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 Figure 9. Quarterly composites of weekly collections.

12-31-03 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 Figure 11. Quarterly collections.

12-31-02 12-31-03 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 *NothbOOeKIL C062Q (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 1 s = (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 S1W-973 STW-974 STW-974 STW-974 STW-974 STW-974 STW-975 d STW-975 STW-976 S1W-976 STW-976 02/17/03 02/17/03 02/17/03 02/17/03 02/17/03 02/17/03 02/17/03 02/17103 02/17103 02/17/03 02/17/03 02/17/03 Sr-89 Sr-90 Ba-I 33 Co-60 Cs-134 Cs-137 Zn-65 Gr. Alpha Gr. Beta Ra-226 Ra-228 Uranium 17.0 +/-0.5 8.9 +/- 0.3 14.5 +/- 0.9 37.5 +/- 0.9 18.2 +/- 0.6 42.7 +/- 1.0 56.8 +/- 2.2 18.4 +/-0.3 11.7 +/-0.5 4.1 +/-0.1 7.6 +/- 0.5 52.9 +/- 1.9 15.9 +/- 5.0 9.0 +/- 5.0 19.5 +/- 5.0 37.4 +/- 5.0 17.8 +/-5.0 44.2 +/- 5.0 60.3 +/- 6.0 37.6 +/- 9.4 8.6 +/- 5.0 4.7 +/- 0.7 6.5 +/- 1.6 53.7 +/- 5.4 7.2 - 24.6 0.4 - 17.7 10.8 - 28.2 28.7 - 46.1 9.1 - 26.5 35.5 - 52.9 49.9 - 70.7 21.3 - 53.9 0.0 - 17.2 3.5 - 6.0 3.7 - 9.3 44.4 - 63.0 STW-983 05/19103 STW-984 05/19103 STW-985 05/19103 STW-985 05/19/03 STW-985 05119/03 STW-985 05/19/03 STW-986 05/19/03 STW-986 e 05/19/03 STW-986 05/19/03 STW-986 05/19/03 STW-986 05/19103 STW-986 05/19/03 STW-988 08118/03 STW-988 08/18/03 STW-988 08118/03 STW-989 08/18/03 STW-989 08/18/03 STW-989 08/18/03 STW-989 08/18/03 STW-989 08/18/03 STW-990 08/18/03 STW-990' 08/18/03 STW-991 08/18/03 STW-991 08/18/03 H-3 1-131 Gr. Alpha Ra-226 Ra-228 Uranium Co-60 Cs-1 34 Cs-I 37 Gr. Beta Sr-89 Sr-90 Ra-226 Ra-228 Uranium Ba-133 Co-60 Cs-134 Cs-137 Zn-65 Gr. Alpha Gr. Beta Sr-89 Sr-90 1290.0 +/- 25.0 19.7 +/- 1.3 54.4 +/- 3.0 14.9 +/-0.2 13.1 +/-0.6 14.5 +/- 0.4 56.9 +/- 8.6 61.6 +/- 6.6 143.0 +/- 1.2 309.0 +/- 2.7 33.1 +/-0.2 28.8 +/-1.3 13.3 +/- 1.1 11.5 +/- 1.0 12.3 +/- 0.4 18.1 +/-1.9 35.9 +/-1.3 32.6 +/- 1.8 48.3 +/- 0.6 58.9 +/- 2.1 41.8 +/- 3.4 51.3 +/- 3.0 57.2 +/- 4.3 21.2 +/- 0.9 1250.0 +/- 331.0 20.8 +/- 3.0 70.3 +/- 17.6 16.5 +/-2.5 10.3 +/- 2.6 15.1 +/-3.0 63.8 +/- 5.0 75.7 +/- 5.0 150.0 +/- 7.5 363.0 +/- 54.5 31.3 +/- 5.0 27.4 +/- 5.0 13.4 +/- 2.0 12.5 +/- 3.1 11.4 +/-3.0 20.7 +/- 5.0 37.4 +/- 5.0 32.6 +/- 5.0 44.3 +/- 5.0 60.2 +/- 6.0 56.2 +/- 16.3 31.6 +/- 5.0 58.8 +/- 5.0 20.6 +/- 5.0 678.0 - 1820.0 15.6 - 26.0 39.9 - 101.0 12.2 - 20.8 5.8 - 14.8 9.9 - 20.3 55.1 - 72.5 67.0 - 84.4 137.0 - 163.0 269.0 - 457.0 22.6 - 40.0 18.7 - 36.1 9.9 - 16.9 7.1 - 17.9 6.2 - 16.6 12.0 - 29.4 28.7 - 46.1 23.9.- 41.3 35.6 - 53.0 49.8 - 70.6 36.9 - 93.3 22.9 - 40.3 50.1 - 67.5 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 STW-997 STW-998 STW-999 STW-999 STW-999 STW-1000 STW-1001 STW-1001 STW-1001 STW-1001 STW-1002 STW-1002 STW-1002 STW-1002 STW-1002 STW-1002 11/18/03 11/18/03 11/18/03 11/18/03 11/18/03 11/18/03 11/18/03 11/18/03 11/18/03 11/18/03 11/18103 11118/03 11/18/03 11/18103 11/18(03 11/18/03 11/18/03 Gr. Alpha Gr. Beta 1-131 Ra-226 Ra-228 Uranium H-3 Gr. Alpha Ra-226 Ra-228 Uranium Co-60 Cs-1 34 Cs-137 Gr. Beta Sr-89 Sr-90 37.0 +/- 2.0 26.5 +/- 0.8 14.8 +/- 0.3 17.2 +/-1.1 6.6 +/- 0.3 11.7 +/-0.3 15900.0 +/- 174.0 32.9 +/- 0.3 16.5 +/- 0.9 6.2 +/- 0.5 9.7 +/- 1.5 27.7 +/- 1.9 21.5 +/- 1.1 66.3 +/- 2.8 159.0 +/- 2.5 48.5 +/- 0.4 10.1 +/-3.0 29.5 +/- 7.4 26.3 +/- 5.0 16.5 +/- 3.0 17.8 +/-2.7

.6.8 +/- 1.7 11.7 +/-3.0 14300.0 +/- 1430.0 54.2 +/- 3.0 16.1 +/-2.4 5.5 +/- 1.4 9.3 +/- 13.6 27.7 +/- 5.0 23.4 +/- 5.0 64.2 +/- 5.0 168.0 +/- 5.0 50.4 +/- 5.0 10.2 +/- 25.2 16.7 - 42.3 17.6 - 35.0 11.3 - 21.7 13.2 - 22.4 3.8 - 9.7 6.5 - 16.9 11800.0 - 16800.0 30.7 - 77.7 11.9 - 20.3 3.1 - 7.9 4.1 - 14.5 19.0 - 36.4 17.6 - 29.2 55.5 - 72.9 124.0 - 212.0 41.7 - 59.1 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 (1 sigma, 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 2003-1 CaSO4: Dy Cards 2003-1 CaSO4: Dy Cards 2003-1 CaSO4: Dy Cards 2003-1 CaSO4: Dy Cards 2003-1 CaSO4: Dy Cards 2003-1 CaSO4: Dy Cards 2003-1 CaSO4: Dy Cards 2003-1 CaSO4: Dy Cards 8/8/2003 8/8/2003 8/8/2003 818/2003 8/8/2003 8/8/2003 8/8/2003 818/2003 8/8/2003 Reader 1.120 Reader 1,150 Reader 1,180 Reader 1, 180 Reader 1,30 Reader 1,60 Reader 1,60 Reader 1,90 Reader 1,90 4.69 3.00 2.08 2.08 75.00 18.75 18.75 8.33 8.33 4.74 +/- 0.54 3.02 +/- 0.20 1.89 +/- 0.45 2.11 +/- 0.22 84.40 +/- 4.87 19.11 +/- 1.86 22.82 +/- 5.41 9.05 +/- 1.17 7.60 +/- 1.08 3.28 - 6.10 2.10 - 3.90 1.46 - 2.70 1.46 - 2.70 52.50 - 97.50 13.13 - 24.38 13.13 - 24.38 5.83 - 10.83 5.83 - 10.83 Environmental. Inc.

2003-2 2003-2 2003-2 2003-2 2003-2 2003-2 2003-2 2003-2 2003-2 CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards 1/1212004 1/12/2004 1/1212004 1112/2004 1/12/2004 1/12/2004 1/12/2004 1/12/2004 1/12/2004 Reader 1,30 Reader 1, 60 Reader 1, 60 Reader 1,90 Reader 1,90 Reader 1,120 Reader 1,150 Reader 1,150 Reader 1, 180 61.96 15.49 15.49 6.88 6.88 3.87 2.48 2.48 1.72 73.50 +/- 2.58 19.70 +/- 0.51 16.93 +/- 1.37 8.06 +/- 0.60 6.64 +/- 0.58 4.39 +/- 0.17 2.34 +/- 0.18 2.51 +/- 0.16 2.01 +/-0.13 43.37 - 80.55 10.84 - 20.14 10.84 - 20.14 4.82 - 8.94 4.82 - 8.94 2.71 - 5.03 1.74 - 3.22 1.74 - 3.22 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 W-10303 W-1 1303 W-12103 SPAP-446 SPW-468 W-20703 SPU-1347 DW-30303 SPCH-964 SPMI-1 086 SPMI-1086 SPMI-1 086 SPW-1088 SPW-1 088 SPW-1 088 SPW-1 088 SPVE-11 1 0 SPW-1 194 SPW-1 194.

SPW-1 194 W-32103 SPCH-1 429 W-40103 SPF-1 407 SPF-1 407 SPAP-1409 SPU-41 203 SPU-41703 SPW-2022 SPW-2053 SPW-2053 SPMI-2055 SPMI-2055 W-50603 W-60303 SPW-3960 SPMI-401 9 SPMI-4019 SPMI-4019 SPW-4023 SPW-4023 SPW-4023 SPW-4518 water water water water Air Filter water water Urine water Charcoal Milk Milk Milk water water water water Vegetation water water water water Charcoal water Fish Fish Air Filter Urine Urine water water water Milk Milk water water water Milk Milk Milk water water water water 1/2/2003 1/3/2003 1/13/2003 1/21/2003 1/31/2003 1/3112003 2/7/2003 3/112003 3/312003 3/8/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/14/2003 3/21/2003 3/2112003 3/21/2003 3/21/2003 4/1/2003 4/1/2003 4/212003 4/2/2003 4/2/2003 4/12/2003 4/17/2003 4/25/2003 4/28/2003 4/28/2003 4/28/2003 4/28/2003 5/6/2003 6/3/2003 7/15/2003 7118/2003 7/18/2003 7/18/2003 7/18/2003 7/1812003 7118/2003 818/2003 Sr-90 Gr. Beta Gr. Beta Gr. Beta Gr. Beta H-3 Fe-55 H-3 Gr. Beta 1-1 31(G)

Cs-1 37 1-131 1-1 31 (G)

Co-60 Cs-1 37 1-1 31 (G) 1-131 1-1 31 (G)

Co-60 Cs-1 37 1-1 31 (G)

C-14 1-1 31 (G)

Gr. Beta Cs-1 34 Cs-1 37 Gr. Beta H-3 H-3 H-3 Cs-1 37 Sr-90 Cs-1 37 Sr-90 Gr. Beta Gr. Beta H-3 Cs-1 37 Sr-89 Sr-90 Cs-1 37 Sr-89 Sr-90 Fe-55 34.04 +/- 1.57 63.24 +/- 1.20 59.75 +/- 1.10 61.56 +/- 1.59 1.49 +/- 0.02 95982.00 +/- 865.00 9095.00 +/- 114.00 1724.00 +/-412.00 65.44 +/- 0.59 73.37 +/- 0.28 57.18 +/- 8.03 75.13 +/- 12.01 65.81 +/- 1.06 27.16 +/- 4.79 51.74 +/- 9.15 68.14 +/- 12.92 76.94 +/- 1.13 122.80 +/- 16.80 31.09 +/- 6.28 55.11 +/- 0.13 66.17 +/- 9.15 5201.00 +/- 16.60 8.83 +/-0.11 67.74 +/- 0.52 0.58 +/- 0.03 1.29 +/- 0.06 1.44 +/- 0.02 1798.50 +/- 409.30 1625.10 +/- 401.30 89007.00 +/- 798.00 45.70 +/- 9.44 47.51 +/- 1.87 61.65 +/- 7.17 38.45 +/- 1.59 70.95 +/- 0.53 63.00 +/- 0.51 88700.00 +/- 822.00 47.17 +/- 7.22 40.95 +/- 4.88 45.30 +/- 1.73 51.92 +/- 6.24 42.49 +/- 10.23 49.69 +/- 3.04 8176.00 +/- 107.00 30.93 63.90 63.90 63.99 1.52 89607.00 10587.00 1784.33 63.90 69.45 49.50 67.60 67.56 28.20 49.50 67.60 67.56 124.00 28.15 49.50 67.60 4966.00 9.18 63.39 0.59 1.32 1.51 1784.33 1784.33 88463.00 49.35 44.47 65.80 44.74 63.39 65.73 87369.00 49.11 49.49 44.24 49.11 49.49 44.24 9330.00 24.74 - 37.12 53.90 - 73.90 53.90 - 73.90 53.99 - 73.99

-8.48 - 11.52 71685.60 - 107528.40 8469.60 - 12704.40 1101.27 - 2467.39 53.90 - 73.90 59.45 - 79.45 39.50 - 59.50 54.08 - 81.12 57.56 - 77.56 18.20 - 38.20 39.50 - 59.50 57.60 - 77.60 54.05 - 81.07 111.60 - 136.40 18.15 - 38.15 39.50 - 59.50 57.60 - 77.60 2979.60 - 6952.40

-0.82 - 19.18 53.39 - 73.39 0.35 - 0.83 0.79 - 1.85

-8.49 - 11.51 1101.27 - 2467.39 1101.27 - 2467.39 70770.40 - 106155.60 39.35 - 59.35 35.58 - 53.36 55.80 - 75.80 35.79 - 53.69 53.39 - 73.39 55.73 - 75.73 69895.20 - 104842.80 39.11 - 59.11 39.49 - 59.49 35.39 - 53.09 39.11 -59.11 39.49 - 59.49 35.39 - 53.09 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 c Control limits are based on Attachment A, Page A2 of this report.

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

IV3-2

TABLE IV-4. In-House "Blank" Samples Concentration (pC/L)a Lab Code Sample Date Analysis Laboratory results (4.66a)

Acceptance Type LLD Activityb Criteria (4.66 a)

SPW-357 W-1 0303 W-1 1303 W-12103 SPAP-447 SPW-469 W-201 03 W-20703 DW-30303 SPCH-965 SPMI-1087 SPMI-1 087 SPMI-1087 SPMI-1 087 SPW-1089 SPW-1089 SPW-1 089 SPW-1089 SPVE-1111 W-32103 water water water water Air Filter water water water Charcoal C Milk Milk Milk Milk water water water water Vegetation water 1/2/2003 1/3/2003 1/13/2003 1/21/2003 1131/2003 1/31/2003 2/1/2003 217/2003 3/312003 ani: 3/8/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/13/2003 3/14/2003 3/21/2003 SPCH-1430 Charcoal Cani: 411/2003 W-401 03 SPF-1408 SPF-1408 SPAP-1410 SPU-41 203 SPU-41 703 SPW-2054 SPW-2054 SPW-2054 SPMI-2056 SPMI-2056 SPMI-2056 W-50603 W-60303 SPW-3960 SPMI-4018 SPMI-4018 SPMI-4018 c SPW-4024 SPW-4024 SPW-451 9 SPW-6401 water Fish Fish Air Filter Urine

Urine water water water Milk Milk Milk water water water

'Milk Milk Milk water water water water 4/1/2003 4/2/2003 4/2/2003 4/2/2003 4/1212003 4117/2003 4/28/2003 4128/2003 4/28/2003 4/28/2003 4/28/2003 4/28/2003 5/6/2003 6/3/2003 7/15/2003 7118/2003 7/18/2003 7/1812003 7/18/2003 7/18/2003 8/8/2003 10/28/2003 Sr-90 Gr. Beta Gr. Beta Gr. Beta Gr. Beta H-3 Gr. Beta Fe-55 Gr. Beta 1-131(G)

Cs-1 34 Cs-1 37 1-1 31 1-131(G)

Co-60 Cs-134 Cs-1 37 1-131 1-1 31 (G)

C-14 1-131(G)

Gr. Beta Cs-1 34 Cs-1 37 Gr. Beta H-3 H-3 Cs-1 37 Sr-89 Sr-90 Sr-90 Cs-1 37 1-131(G)

Gr. Beta Gr. Beta H-3 Cs-1 37 Sr-89 Sr-90 Sr-89 Sr-90 Fe-55 H-3 0.50 0.12 0.14 0.12 0.00 160.20 0.17 802.00 0.15 0.01 7.49 7.90 0.33 7.76 4.48 5.60 4.32 0.29 7.53 17.50 0.01 0.14 0.01 0.01 0.00 653.99 648.35 3.16 0.55 0.55 0.77 2.74 3.54 0.12 0.14 156.60 4.10 0.73 0.51 0.83 0.62 527.00 163.80 0.12 +/- 0.25 0.022 +/- 0.10 0.035 +/- 0.10 0.029 +/- 0.09

-0.0034 +/- 0.00 19.3 +/- 80.30 0.0 +/- 0.12 149 +/-498.00 0.007 +/- 0.11

-0.013 +/- 0.18

-0.050 +/- 0.16

-0.4 +/- 9.200

-0.11 +/- 0.100

-0.0029 +/- 0.002 542.28 +/- 364.780 100.1 +/- 344.800 0.45 +/- 0.50 0.072 +/- 0.260 0.66 +/- 0.430 0 +/- 0.090

-0.035 +/- 0.095 53.4 +/- 80.200 0.39 +/- 0.880 0.93 +/- 0.340 0.21 +/- 0.730 0.09 +/- 0.300 87 +/- 369.000

-23.8 +/- 85.000 1

3.2 3.2 3.2 3.2 200 3.2 1000 3.2 9.6 10 10 0.5 20 10 10 10 0.5 20 200 9.6 3.2 100 100 3.2 200 200 10 5

1 I

10 20 3.2 3.2 200 10 5

1 5

1 1000 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 SPF-641 9 SPF-6419 SPMI-7460 SPMI-7460 SPMI-7460c Air Filter Fish Fish Milk Milk Milk 10128/2003 10/28/2003 10/28/2003 12/1212003 12/12/2003 12/1212003 Gr. Beta Cs-1 34 Cs-137 Cs-1 34 Cs-1 37 Sr-90 0.87 0.01 0.01 4.52 5.77 0.50

-0.99 +/- 0.440 1.26 +/- 0.370 3.2 100 100 10 10 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 MI-24, 25 CF-47, 48 CF-47,48 AP-8827, 8828 AP-8869, 8870 MI-119, 120 MI-119, 120 MI-213, 214 Ml-213. 214 Ml-262, 263 S-696, 697 S-696, 697 MI-448, 449 SW-470, 471 SW-470, 471 SW-470, 471 MI-517, 518 MI-541, 542 Ml-620, 621 DW-922, 923 CF-1048, 104 9b LW-1152, 1153 F-1120, 1121 F-1120, 1121 F-1120,1121 DW-1278, 1279 SO-1380, 1381 LW-1299, 1300 LW-1320, 1321 W-1403,1404 AP-2019, 2020 MI-1422, 1423 Ml-2170, 2171 MI-1422, 1423 AP-1633, 1634 AP-1871, 1872 AP-1974, 1975 LW-1828, 1829 S-1544, 1545 DW-1913, 1914 MI-1996, 1997 MI-1996,1997 1/2/2003 1/212003 1/2/2003 1/2/2003 1/2/2003 1/2/2003 1/8/2003 1/8/2003 1/14/2003 1/14/2003 1/15/2003 1/29/2003 1/29/2003 2/3/2003 2/3/2003 2/3/2003 2/3/2003 2/4/2003 2/5/2003 2/11/2003 3/4/2003 3/10/2003 3/13/2003 3/14/2003 3/14/2003 3/14/2003 3/2512003 3/25/2003 3/27/2003 3/27/2003 3/3112003 3/31/2003 4/11/2003 4/1/2003 412/2003 4/2/2003 4/2/2003 4/2/2003 4/11/2003 4/15/2003 4/15/2003 4/21/2003 4/22/2003 K-40 Sr-90 Gr. Beta K-40 Be-7 Be-7 K-40 Sr-90 K-40 Sr-90 K-40 Gr. Alpha Gr. Beta K-40 Gr. Beta K-40 (ICP)

K-40 K-40 K-40 K-40 1-131 K-40 H-3 Cs-137 Gr. Beta K-40 1-131 Gr. Beta Gr. Beta H-3 Sr-90 Be-7 K-40 K-40 Sr-90 Be-7 Be-7 Be-7 Gr. Beta K-40 1-131 Sr-90 K-40 1362.00 +/- 117.00 1.45 i 0.40 2.72 i 0.10 2.61 +/- 0.31 0.06 + 0.01 0.04 +/- 0.02 1351.90 +/- 116.10 2.22 +/- 0.43 1372.30 +/- 104.80 1.81 +/- O.41 1399.20 +/- 200.70 24.70 +/- 4.89 22.89 +/- 2.67 1159.70 +/- 157.90 13.62 +/- 1.23 5.10 +/- 0.51 5.80 +/- 0.51 1437.70 +/- 125.50 1443.00 +/- 194.80 1294.70 +/- 115.10 0.67 +/- 0.16 3.09 +/- 0.12 1147.26 +/- 122.56 0.04 +/- 0.02 2.04 +/- 0.06 1.93 +/- 0.38 0.37 +/- 0.22 18.60 +/- 2.68 2.35 +/- 0.55 487.12 +/- 104.43 0.96 +/- 0.32 0.07 +/- 0.01 1410.00 +/- 176.00 1452.30 +/- 129.10 1.84 +/- 0.42 0.05 +/- 0.01 0.07 +/- 0.01 0.08 +/- 0.02 2.49 +/- 0.58 15.84 +/- 2.36 0.29 +/- 0.21 2.05 +/- 0.74 1580.20 +/- 118.90 1377.00 +/- 188.00 2.21 +/- 0.50 2.84 +/-0.10 2.32 +/- 0.12 0.05 +/- 0.02 0.05 i 0.02 1234.70 +/- 108.70 1.88 +/- 0.40 1303.80 +/- 109.10 2.29 +/- 0.45 1347.70 +/- 126.40 23.23 +/- 4.64 22.71 +/- 2.73 1396.40 +/- 106.20 15.21 +/- 1.21 5.20 +/- 0.52 5.90 +/- 0.52 1357.70 +/- 188.00 1385.20 +/- 190.10 1234.10 +/- 165.10 0.79 +/- 0.16 2.67 +/- 0.07 1094.42 +/- 120.92 0.05 +/- 0.01 2.11 +/- 0.06 1.89 +/- 0.25 0.34 +/- 0.29 20.53 +/- 2.83 2.48 +/- 0.56 422.00 +/- 102.00 1.10 +/- 0.42 0.08 +/- 0.01 1340.00 +/- 114.00 1472.50 +/- 191.00 1.15 +/- 0.39 0.06 +/- 0.01 0.07 +/- 0.01 0.07 +/- 0.02 3.42 +/- 0.63 15.41 +/- 2.02 0.42 +/- 0.19 3.25 +/- 0.91 1602.10 +/- 120.40 1369.50 +/- 110.72 1.83 +/- 0.32 2.78 +/- 0.07 2.47 +/- 0.17 0.05 +/- 0.01 0.05 +/- 0.01 1293.30 +/- 79.52 2.05 +/- 0.30 1338.05 +/- 75.64 2.05 +/- 0.31 1373.45 +/- 118.59 23.97 +/- 3.37 22.80 +/- 1.91 1278.05 +/- 95.15 14.42 +/- 0.86 5.15 +/- 0.36 5.85 +/- 0.36 1397.70 +/- 113.02 1414.10 +/- 136.09 1264.40 +/- 100.63 0.73 +/- 0.11 2.88 +/- 0.07 1120.84 +/- 86.09 0.05 +/- 0.01 2.08 +/- 0.04 1.91 +/- 0.23 0.36 +/- 0.18 19.57 +/- 1.95 2.42 +/- 0.39 454.56 +/- 72.99 1.03 +/- 0.26 0.07 +/- 0.01 1375.00 +/- 104.85 1462.40 +/- 115.27 1.50 +/- 0.29 0.06 +/- 0.01 0.07 +/- 0.01 0.08 +/- 0.01 2.96 +/- 0.43 15.63 +/- 1.55 0.36 +/- 0.14 2.65 +/- 0.58 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 SWU-2275, 2276 G-2149, 2150 TD-2339, 2340 S0-2381, 2382 SO-2381, 2382 SO-2381, 2382 SO-2381, 2382 SO-2381, 2382 DW-2317, 2318 BS-2595, 2596 BS-2595, 2596 U-2484, 2485 S0-2645, 2646 S0-2645, 2646 S0-2645, 2646 MI-2696, 2697 MI-2696, 2697 S0-2787, 2788 SO-2787, 2788 SO-2787, 2788 MI-2840, 2841 SWU-2864, 2865 BS-2888, 2889 BS-2888, 2889 W-3230, 3231 TD-3036, 3037 SL-2909, 2 9 1 0 b SL-2909, 2910 SW-3080, 3081 SW-3080, 3081 VE-3172, 3173 F-3742, 3743 F-3742, 3743 S0-3325, 3326 Mi-3253, 3254 MI-3297, 3298 WW-3380, 3381 SWT-3403, 3404 Ml-3424, 3425 SW-3862, 3863 G-3479, 3480 G-3479, 3480 LW-3809, 3810 4/28/2003 4/28/2003 4/30/2003 5/1/2003 5/1/2003 5/1/2003 5/1/2003 5/1/2003 5/1/2003 5/6/2003 5/6/2003 5/612003 5/9/2003 5/14/2003 5/1412003 5/14/2003 5119/2003 5/19/2003 5/28/2003 5/28/2003 5/28/2003 5/2812003 5/28/2003 5129/2003 5/29/2003 5/30/2003 6/2/2003 6/3/2003 6/3/2003 6/10/2003 6/10/2003 6/11/2003 6/11/2003 6111/2003 6/13/2003 611712003 6/17/2003 6123/2003 6(24/2003 6/24/2003 6/24/2003 6/25/2003 6/25/2003 6/30/2003 Gr. Beta Gr. Beta Be-7 H-3 Cs-137 Gr. Alpha Gr. Beta K-40 Sr-90 1-131 Cs-1 37 K-40 H-3 Be-7 Cs-137 K-40 K-40 Sr-90 Cs-137 Gr. Beta K-40 K-40 Gr. Beta Cs-137 K-40 Gr. Beta H-3 Gr. Beta K-40 Gr. Alpha Gr. Beta K-40 Gr. Beta K-40 Gr. Beta K-40 Sr-90 Gr. Beta Gr. Beta K-40 Gr. Beta Be-7 K-40 Gr. Beta 2.33 +/- 0.66 3.62 +/- 0.67 0.71 +/- 0.19 221.00 +/- 91.00 0.11 +/- 0.03 11.14 +/- 5.15 35.18 +/- 4.69 18.29 +/- 0.84 0.06 +/- 0.02 1.77 +/- 0.27 0.06 +/- 0.02 13.74 +/- 0.62 512.00 +/- 100.00 1.18 +/- 0.42 0.11 +/- 0.04 16.50 +/- 1.13 1320.40 +/- 124.50 1.49 +/- 0.47 0.27 +/- 0.04 19.62 +/- 1.73 14.77 +/- 1.02 1179.50 +/- 167.80 3.39 +/- 0.59 0.05 +/- 0.02 9.70 +/- 0.83 4.33 +/- 1.00 529.50 +/- 100.00 7.10 +/- 0.15 3.90 +/- 0.67 4.63 +/- 1.90 9.07 +/- 1.29 2.62 +/- 0.35 3.47 +/- 0.13 2.94 +/- 0.39 20.95 +/- 1.88 1329.40 +/- 121.80 2.14 +/- 0.57 5.58 +/- 0.69 2.80 +/- 0.56 1422.80 +/- 185.40 3.66 +/- 1.18 1.52 +/- 0.25 5.02 +/- 0.45 2.12 +/- 0.76 2.68 +/- 0.60 4.60 +/- 0.71 0.69 i 0.20 161.00 +/- 88.00 0.10 +/- 0.02 10.39 +/- 5.60 39.66 +/- 5.24 17.83 +/- 0.84 0.10 +/- 0.02 1.47 +/- 0.26 0.06 +/- 0.02 14.10 +/-0.73 370.00 +/- 95.00 1.21 +/- 0.35 0.09 +/- 0.05 15.33 +/- 1.09 1394.10 +/- 113.00 2.01 +/- 0.45 0.23 +/- 0.04 20.81 +/- 1.72 14.41 +/- 1.00 1401.70 +/- 120.20 3.41 +/- 0.64 0.07 +/- 0.04 10.17 +/- 0.87 3.28 +/- 1.22 585.50 +/- 102.00 7.60 +/- 0.16 3.49 +/- 0.52 4.47 +/- 1.71 8.98 +/- 1.28 3.17 +/- 0.58 3.71 +/- 0.14 2.70 +/- 0.40 19.97 +/-2.01 1417.60 +/- 130.90 2.27 +/- 0.50 5.03 + 0.69 2.63 i 0.55 1216.20 +/- 170.10 3.70 +/- 1.22 1.43 +/- 0.28 5.10 +/- 0.48 2.39 i 0.72 2.51 +/- 0.45 4.11 +/-0.49 0.70 +/-0.14 191.00 +/- 63.29 0.10 +/- 0.02 10.77 +/- 3.80 37.42 +/- 3.52 18.06 +/- 0.59 0.08 +/- 0.01 1.62 +/- 0.19 0.06 +/- 0.02 13.92 +/- 0.48 441.00 +/- 68.97 1.19 +/-0.27 0.10 +/- 0.03 15.91 +/- 0.79 1357.25 +/- 84.07 1.75 +/- 0.32 0.25 +/- 0.03 20.21 +/- 1.22 14.59 +/- 0.71 1290.60 +/- 103.20 3.40 +/- 0.43 0.06 +/- 0.02 9.93 +/- 0.60 3.81 +/- 0.79 557.50 +/-71.42 7.35 +/- 0.11 3.70 +/- 0.42 4.55 +/- 1.28 9.02 +/- 0.91 2.90 +/- 0.34 3.59 +/-0.10 2.82 +/- 0.28 20.46 +/- 1.38 1373.50 +/- 89.40 2.21 +/- 0.38 5.31 +/- 0.49 2.72 +/- 0.39 1319.50 +/- 125.80 3.68 +/- 0.85 1.47 +/- 0.19 5.06 +/- 0.33 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 AP-4105,4106 G-3572, 3573 G-3572, 3573 G-3572, 3573 G-3572, 3573 MI-3601, 3602 MI-3601, 3602 AP-3933, 3934 AP-4061, 4062 AP-4147, 4148 AP-4084,4085 LW-3786, 3787 WW-4168,4169 CF-3975,3976 CF-3975, 3976 MI-4020,4021 DW-4272, 4273 SWU-4461, 4462 SL-4398, 4399 SL-4398, 4399 b SL-4398, 4399 G-4419,4420 G-4419,4420 G-4419,4420 TD-4550,4551 Mi-4482, 4483 MI-4482, 4483 G-4526,4527 G-4526,4527 SWU-4609,4610 CW-4694, 4695 CW-4694,4695 LW-4673,4674 MI-4735,4736 MI-4756, 4757 VE-4832, 4833 MI-4860,4861 SO-5082, 5083 SO-5082, 5083 CW-5349, 5350 CW-5349, 5350 ME-4968,4969 ME-4968, 4969 6/30/2003 6/30/2003 7/11/2003 7/1/2003 7/1/2003 7/1/2003 7/1/2003 711/2003 7/1/2003 7/212003 7/212003 7/3/2003 7/9/2003 7/11/2003 7/14/2003 7/14/2003 7/16/2003 7/29/2003 7/30/2003 8/4/2003 8/4/2003 8/4/2003 8/4/2003 8/4/2003 8/4/2003 8/4/2003 8/6/2003 8/6/2003 8/6/2003 8/6/2003 816/2003 8/6/2003 8/6/2003 8/13/2003 8/19/2003 8/19/2003 8/20/2003 8/26/2003 8/28/2003 8/28/2003 8/31/2003 8/31/2003 9/2t2003 9/2t2003 H-3 Be-7 Be-7 Gr. Beta K-40 Sr-90 K-40 Sr-90 Be-7 Be-7 Be-7 Be-7 Gr. Beta Gr. Beta Be-7 K-40 K-40 Gr. Beta Gr. Beta Be-7 Gr. Beta K-40 Be-7 Gr. Beta K-40 H-3 K-40 Sr-90 Be-7 K-40 Gr. Beta Gr. Beta H-3 Gr. Beta K-40 Sr-90 K-40 K-40 Cs-I 37 Gr. Beta Gr. Beta H-3 Gr. Beta K-40 2814.09 +/- 167.99 0.07 +/- 0.01 0.91 +/- 0.24 6.35 +/- 0.15 5.44 +/- 0.55 0.01 +/- 0.00 1318.60 +/- 117.40 0.86 +/- 0.51 0.07 +/- 0.01 0.07 +/- 0.01 0.08 +/- 0.01 0.09 +/- 0.02 2.13 +/- 0.56 3.79 +/- 1.87 1.64 +/- 0.81 6.54 +/- 0.75 1350.90 +/- 174.90 2.35 +/- 0.92 2.28 +/- 0.44 4.55 +/- 1.05 3.41 +/- 0.12 2.47 +/- 0.67 3.98 +/- 0.63 5.38 +/- 0.14 4.42 +/- 0.66 327.30 +/- 95.10 1301.40 +/- 115.20 0.81 +/- 0.30 1.47 +/- 0.29 5.42 +/- 0.56 3.22 +/- 0.63 1.48 +/- 0.34 22776.41 +/- 428.73 2.86 +/- 0.65 1396.30 +/- 127.90 1.66 +/- 0.47 1.96 +/- 0.50 1312.10 +/- 191.80 0.01 +/- 0.00 20.02 +/- 1.84 1.45 +/- 0.39 24429.50 +/- 444.42 4.90 +/- 0.23 2.46 +/- 0.41 2812.17 +/- 167.94 0.07 +/- 0.01 0.81 +/- 0.28 6.35 +/- 0.15 5.68 +/- 0.28 0.02 +/- 0.00 1435.10 +/- 117.80 1.74 +/- 0.60 0.07 +/- 0.01 0.08 +/- 0.01 0.07 +/- 0.01 0.08 +/- 0.02 2.93 +/- 0.62 4.48 +/- 1.98 1.66 +/- 0.57 6.19 +/- 0.50 1199.80 +/- 153.20 2.29 +/- 0.89 1.93 +/- 0.43 4.50 +/- 1.10 3.12 +/- 0.11 2.44 +/- 0.87 3.93 +/- 0.57 5.35 +/- 0.16 4.32 +/- 0.74 390.20 +/- 92.10 1370.30 +/- 116.80 0.85 +/- 0.31 1.42 +/- 0.28 5.21 +/- 0.63 2.67 +/- 0.64 1.09 +/- 0.34 21831.75 +/- 420.10 3.75 +/- 0.7i 1410.10 +/- 120.20 1.53 +/- 0.44 1.43 +/- 0.47 1307.80 +/- 109.30 0.01 +/- 0.00 20.92 +/- 2.03 1.55 +/- 0.45 24744.25 +/- 447.18 5.18 +/- 0.24 2.68 +/- 0.37 2813.13 +/- 118.77 0.07 +/- 0.01 0.86 +/- 0.18 6.35 +/- 0.11 5.56 +/- 0.31 0.01 +/- 0.00 1376.85 +/- 83.16 1.30 +/- 0.39 0.07 +/- 0.01 0.08 +/- 0.01 0.07 +/- 0.01 0.08 +/- 0.01 2.53 +/- 0.42 4.14 +/- 1.36 1.65 +/- 0.50 6.36 +/- 0.45 1275.35 +/- 116.25 2.32 +/- 0.64 2.10 +/-0.31 4.53 +/- 0.76 3.27 +/- 0.08 2.46 +/- 0.55 3.96 +/- 0.42 5.37 +/- 0.11 4.37 +/- 0.50 358.75 +/- 66.19 1335.85 +/- 82.03 0.83 +/- 0.21 1.45 +/- 0.20 5.31 i 0.42 2.95 +/- 0.45 1.29 +/- 0.24 22304.08 +/- 300.12 3.30 +/- 0.48 1403.20 i 87.76 1.60 +/- 0.32 1.70 +/- 0.34 1309.95 +/- 110.38 0.01 +/- 0.00 20.47 +/- 1.37 1.50 +/- 0.30 24586.88 +/- 315.23 5.04 +/- 0.17 2.57 +/- 0.28 IV5-3

TABLE IV-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code DW-4989, 4990 MI-5154, 5155 MI-5154, 5155 AP-6177, 6178 SWU-5773, 5774 AP-6102, 6103 G-5631, 5632 G-5631, 5632 G-5631, 5632 SO-5660, 5661 S0-5660, 5661 SO-5660, 5661 sO-5660, 5661 SO-5660, 5661 AP-6334, 6335 AP-6363, 6364 MI-5794, 5795 MI-5838, 5839 MI-5838, 5839 BS-5938, 5939 BS-5938, 5939 SS-5959, 5960 MI-6011, 6012 MI-6034, 6035 VE-6055, 6056 VE-6055, 6056 Mi-6291, 6292 Mi-6291, 6292 SS-6435, 6436 SS-6435, 6436 CF-6313, 6314 SO-6528, 6529 SO-6528, 6529 S0-6393, 6394 S0-6393, 6394 S0-6393, 6394 SWT-6507, 6508 DW-6647, 6648 BS-6603, 6604 BS-6603, 6604 S0-6670, 6671 S0-6670, 6671 S-7067, 7068 MI-6818, 6819 Date 9/2/2003 9/8/2003 9/8/2003 9/29/2003 9/30/2003 9/30/2003 1011/2003 10/1/2003 10/11/2003 10/1/2003 1011/2003 10/1/2003 10/1/2003 10/1/2003 10/1/2003 10/2/2003 10/6/2003 1018/2003 10/8/2003 10/8/2003 10/8/2003 10/13/2003 10/13/2003 10114/2003 10/15/2003 10/15/2003 10/21/2003 10/21/2003 10/21/2003 10/21/2003 10/22/2003 10/22/2003 10/22/2003 10/25/2003 10/2512003 10/25/2003 10/28/2003 10/31/2003 11/3/2003 1113/2003 11/5/2003 11/5/2003 11/10/2003 11/11/2003 Analysis Gr. Beta K-40 Sr-90 Be-7 Gr. Beta Be-7 Be-7 Gr. Beta K-40 Cs-137 Gr. Alpha Gr. Beta K-40 Sr-90 Be-7 Be-7 Sr-90 K-40 Sr-90 Cs-1 37 K-40 K-40 K-40 Sr-90 Gr. Beta K-40 K-40 Sr-90 Cs-137 K-40 K-40 Cs-137 K-40 Cs-1 37 Gr. Beta K-40 Gr. Beta 1-131 Cs-137 Gr. Beta Cs-137 K-40 Cs-137 K-40 First Result Second Result Result 2.20 +/- 1.04 1365.50 +/- 116.70 1.19 +/- 0.39 0.07 +/- 0.01 2.55 +/- 0.63 0.07 +/- 0.01 1.88 +/- 0.48 5.87 +/- 0.09 5.24 +/- 0.77 0.15 +/-0.04 12.72 +/- 3.72 32.42 +/- 3.09 18.93 +/- 0.87 0.03 +/- 0.01 0.06 +/- 0.01 0.07 +/- 0.02 1.37 +/- 0.37 1364.30 +/- 124.10 0.76 +/- 0.30 0.18 +/- 0.03 15.59 +/- 0.70 7.49 +/- 0.42 1165.20 +/- 118.70 0.86 +/- 0.33 5.18 +/- 0.18 5.31 +/- 0.57 1935.60 +/- 147.70 1.22 +/- 0.39 0.05 +/- 0.02 14.08 +/- 0.54 14.56 +/- 0.45 0.15 +/- 0.03 17.46 +/- 0.69.

0.09 +/- 0.03 23.21 +/- 1.98 13.98 +/- 0.80 2.64 +/- 0.52 0.46 +/- 0.27 9.03 +/- 0.82 26.83 +/- 1.94 0.15 +/- 0.04 12.96 +/- 0.66 0.21 +/- 0.05 1695.50 +/- 129.80 3.19 +/- 1.14 1456.70 +/- 119.10 1.39 +/- 0.39 0.06 +/- 0.01 2.83 +/- 0.60 0.05 +/- 0.01 2.21 +/- 0.40 5.85 +/- 0.08 5.26 +/- 0.58 0.16 +/- 0.05 14.86 +/- 3.88 33.60 +/- 3.04 18.25 +/- 1.19 0.03 +/- 0.01 0.06 +/- 0.01 0.07 +/- 0.02 1.02 +/- 0.37 1414.40 +/- 110.40 1.00 +/- 0.34 0.20 +/- 0.05 16.69 +/- 0.80 7.29 +/- 0.63 1191.20 +/- 99.50 0.90 +/- 0.34 5.33 +/- 0.18 4.52 +/- 0.51 1936.10 +/- 116.50 1.41 +/- 0.37 0.05 +/- 0.03 14.28 +/- 0.80 14.70 +/- 0.95 0.16 +/- 0.05 17.90 +/- 1.05 0.10 +/- 0.04 21.76 +/- 1.91 14.57 +/- 0.86 2.63 +/- 0.53 0.61 +/- 0.31 8.60 +/- 1.13 27.18 +/- 1.95 0.13 +/- 0.04 12.95 +/- 0.72 0.19 +/- 0.08 1709.40 +/- 143.00 2.70 +/- 0.77 1411.10 +/- 83.37 1.29 +/- 0.28 0.06 +/- 0.01 2.69 +/- 0.44 0.06 +/- 0.01 2.05 +/- 0.31 5.86 +/- 0.06 5.25 +/- 0.48 0.16 +/- 0.03 13.79 +/- 2.69 33.01 +/- 2.17 18.59 +/- 0.74 0.03 +/- 0.01 0.06 +/- 0.01 0.07 +/- 0.01 1.19 +/- 0.26 1389.35 +/- 83.05 0.88 +/- 0.23 0.19 +/- 0.03 16.14 +/- 0.53 7.39 +/- 0.38 1178.20 +/- 77.44 0.88 +/- 0.24 5.25 +/- 0.13 4.92 +/- 0.38 1935.85 +/- 94.06 1.31 +/- 0.27 0.05 +/- 0.02 14.18 +/-0.48 14.63 +/- 0.53 0.16 +/- 0.03 17.68 +/- 0.63 0.10 +/- 0.03 22.48 +/- 1.38 14.27 +/- 0.59 2.63 +/- 0.37 0.53 +/- 0.21 8.82 +/- 0.70 27.01 +/- 1.38 0.14 +/- 0.03 12.96 +/- 0.49 0.20 +/- 0.05 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 WL-6987, 6988 SO-7156, 7157 S0-7156, 7157 S0-7156, 7157 SO-7156, 7157 S-7281, 7282 SWU-7198, 7199 DW-7221, 7222 SW-7133, 7134 SW-7133, 7134 W-7519, 7520 SW-7805, 7806 VE-7399, 7400 VE-7399, 7400 SW-7540, 7541 SW-7540, 7541 LW-7736, 7737 AP-7868, 7869 AP-7952, 7953 AP-7994, 7995 11/11/2003 11/17/2003 11/21/2003 11/21/2003 11/21/2003 11/21/2003 11/24/2003 11/25/2003 11/25/2003 1211/2003 12/1/2003 12/1/2003 12/1/2003 12/9/2003 12/9/2003 12/9/2003 1219/2003 12126/2003 12/30/2003 12/30/2003 12/31/2003 Sr-90 Fe-55 Cs-137 Gr. Alpha Gr. Beta K-40 Cs-137 Gr. Beta Gr. Beta Gr. Beta K-40 Fe-55 Sr-90 Gr. Beta K-40 Gr. Alpha Gr. Beta Gr. Beta Be-7 Be-7 Be-7 2.01 +/-0.41 603.49 +/- 53.32 0.74 +/- 0.08 14.90 +/-4.24 22.97 +/- 3.12 12.51 +/- 1.06 0.82 +/- 0.15 2.60 +/- 0.53 12.32 +/- 1.40 2.10 +/- 0.23 1.50 +/- 0.15 3.03 +/- 0.65 0.59 +/- 0.32 4.99 +/- 0.15 5.04 +/- 0.46 2.64 +/- 1.36 6.62 +/- 1.22 2.62 +/- 0.54 0.05 +/- 0.01 0.04 +/- 0.01 0.05 +/- 0.02 1.59 +/- 0.39 619.65 +/- 53.97 0.77 +/- 0.07 19.25 +/-4.45 25.51 +/- 2.98 12.94 +/- 1.07 1.16 +/- 0.20 2.54 +/- 0.55 12.38 +/- 1.43 2.46 +/- 0.23 1.40 +/- 0.14 3.12 +/- 0.64 0.56 +/- 0.33 5.24 +/- 0.15 5.34 +/- 0.74 2.10 +/- 1.19 5.89 +/- 1.35 2.83 +/- 0.56 0.04 +/- 0.01 0.04 +/- 0.01 0.05 +/- 0.01 1.80 +/- 0.28 611.57 +/- 37.93 0.76 +/- 0.06 17.07 +/- 3.07 24.24 +/- 2.16 12.73 +/- 0.75 0.99 +/- 0.12 2.57 +/- 0.38 12.35 +/- 1.00 2.28 +/- 0.16 1.45 +/- 0.10 3.08 +/- 0.46 0.58 +/- 0.23 5.11 +/- 0.11 5.19 +/- 0.43 2.37 +/- 0.91 6.25 +/- 0.91 2.73 +/- 0.39 0.04 +/- 0.01 0.04 +/-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 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STW-972 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 STSO-987 water water water water water water water water water water water water water water water 12/01/02 12/01/02 12101/02 12/01/02 12/01/02 12/01/02 12101/02 12/01/02 12/01/02 12/01/02 12/01/02 12101/02 12/01/02 12/01/02 12/01/02 Am-241 Co-57 Co-60 Cs-1 34 Cs-1 37 Fe-55 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-9o Tc-99 U-233/4 U-238 Zn-65 0.56 +/- 0.06 57.10 + 1.90 38.30 + 0.60 395.30 i 10.10 316.40 +/- 5.30 94.90 +/- 24.50 33.40 +/- 0.10 123.80 +/- 5.50 0.66 +/- 0.06 0.001 +/- 0.001 13.80 +/- 1.00 128.10 +/- 3.80 1.60 +/- 0.09 1.64 +/- 0.09 540.40 +/- 9.90 0.58 +/- 0.09 57.00 +/- 5.70 38.20 +/- 3.82 421.00 +/- 42.10 329.00 +/- 32.90 96.00 +/- 9.60 32.90 +/- 3.29 136.50 +/- 13.70 0.83 i 0.08 0.000 +/- 0.000 12.31 +/- 1.23 132.00 +/- 13.20 1.54 i0.15 1.60 +/- 0.16 516.00 £ 51.60 0.40 - 0.75 39.90 - 74.10 26.74 - 49.66 294.70 - 547.30 230.30 - 427.70 67.20 - 124.80 23.03 - 42.77 95.55 - 177.45 0.58 - 1.08 0.000 - 0.005 8.62 - 16.00 92.40 - 171.60 1.08 - 2.00 1.12 - 2.08 361.20 - 670.80 371.00 - 689.00 294.00 - 546.00 166.60 - 309.40 582.40 - 1081.60 456.40 - 847.60 95.90 - 178.10 539.00 - 1001.00 46.83 - 86.97 36.90 - 68.50 499.80 - 928.20 62.30 - 115.70 294.70 - 547.30 343.00 - 637.00 soil soil soil soil soil soil soil soil soil soil soil soil soil 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 01/01/03 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 534.36 +/- 2.61 442.16 +/- 2.31 211.00 +/- 2.30 849.50 +/- 3.30 716.50 +/- 12.80 148.76 +/- 2.84 597.10 +/- 23.50 67.05 +/- 3.10 52.80 +/- 3.60 609.50 +/- 9.80 99.50 +/- 7.60 508.60 +/- 42.20 492.70 +/- 28.10 530.00

53.00 420.00 i 42.00 238.00 +/- 23.80 832.00 i 83.20 652.00 i 65.20 137.00 i 13.70 770.00 i 77.00 66.90 +/- 6.70 52.70 i 5.30 714.00 +/- 71.40 89.00 +/- 8.90 421.00 i 42.10 490.00 +/- 49.00 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 STW-992 STW-992 STW-992 STW-992 STW-992 STW-992 STW-992 STW-993 STW-993 water water water water water water water water water water 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09102103 09/02103 09/02103 09/02103 09/02/03 Co-60 Cs-134 Cs-1 37 H-3 Pu-238 Pu-239/40 Sr-90 Uranium Gr. Alpha Gr. Beta 468.30 +/- 4.10 53.90 +/- 0.80 76.10 +/- 1.40 355.20 +/- 12.80 1.71 +/- 0.07 4.24 +/- 0.01 6.70 +/- 0.50 6.03 +/- 0.14 688.00 +/- 7.60 1985.00 +/- 111.00 513.00 63.00 80.30 446.30 2.07 4.99 7.04 5.69 622.00 1948.00 0.80 - 1.20 0.80 - 1.30 0.80 - 1.22 0.78 - 2.45 0.74 - 1.20 0.79 - 1.20-0.69 - 1.34 0.75 - 1.33 0.58 - 1.29 0.61 - 1.43 STSO-994 STSO-994 STSO-994 STSO-994 STSO-994 STSO-994 STSO-994 STAP-995 STAP-995 STAP-995 STAP-995 STAP-995 STAP-995 STAP-995 STAP-995 STAP-996 STAP-996 soil soil soil soil soil soil soil Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02/03 09/02103 09102/03 09/02/03 09/02/03 09/02103 Am-241 Cs-137 K-40 Pu-238 Pu-239140 Sr-90 Uranium Am-241 Co-60 Cs-137 Mn-54 Pu-238 Pu-239/40 Sr-90 Uranium Gr. Alpha Gr. Beta 19.70 +/- 1.50 1928.00 +/- 19.00 533.00 +/- 79.00 15.30 +/- 0.80 32.50 +/- 2.30 69.80 +/- 2.30 228.30 +/- 17.10 0.64 +/- 0.05 48.50 +/- 0.40 51.20 +/- 1.10 53.70 +/- 1.10 0.24 +/- 0.05 0.41 +/- 0.10 1.90 +/- 0.10 0.80 +/- 0.06 3.23 +/- 0.07 4.18 +/- 0.03 18.40 1973.00 488.00 14.60 30.40 80.30 259.30 0.44 55.10 54.80 58.00 0.23 0.40 2.06 0.82 3.11 3.89 0.65 - 2.28 0.80 - 1.25 0.80 - 1.32 0.59 - 2.88 0.71 - 1.30 0.67 - 2.90 0.71 - 1.32 0.70 - 2.34 0.80 - 1.26 0.80 - 1.32 0.80 - 1.35' 0.67 - 1.33 0.73 - 1.26 0.53 - 1.84 0.79 - 2.10 0.73 - 1.43 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

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.

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