Text

Annual Radiological Environmental Operating Report
	ML021500487
Person / Time
Site:	LaSalle
Issue date:	05/15/2002
From:	Barnes G; Exelon Generation Co, Exelon Nuclear
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	Download: ML021500487 (136)
	v • d • e

Exelknm.

Exelon Generation Company, LLC www.exeloncoTp.com NUClear LaSalle County Station 2601 North 21" Road Marseilles, IL 61341-9757 May 15, 2002 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:

2001 Annual Radiological Environmental Operating Report Enclosed is the 2001 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, 7/

/9?

George P. Barnes Site Vice President LaSalle County Station Attachment cc:

Regional Administrator - NRC Region III NRC Senior Resident Inspector - LaSalle County Station

/K~

TABLE OF CONTENTS INTRODUCTION............................................

21 SU M M A R Y......................................

1.0 EFFLUENTS 1.1 Gaseous Effluents to the Atmosphere..............................................

3 1.2 Liquids Released to Illinois River...................................................................

2.0 SOLID RADIOACTIVE WASTE.............................................................................

3 3.0 DOSE TO MAN 3.1 Gaseous Effluent Pathways 3.1.1 N oble G ases........................................................................................

3 3.1.1.1 GanmmaDoseRates...................................................................

3 3.1.1.2 Beta Air and Skin Rates............................................................

3.1.2 Radioactive Iodine.................................................................................

4 3.1.2.1 Iodine Concentrations in Air.....................................................

3.1.2.2 Dose to Thyroid........................................................................

4 3.1.3 Concentrations of Particixates in Air......................................................

5 3.2 Liquid Effluent Pathways.................................

I 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 A quatic Radioactivity..........................................................

5.4 M ilk.........................................................

I.................................................

7 5,5 Terrestrial Radioactivity.............................................................................

8 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..........................

1.0 ERRATADATA 8

10.0 ER A A A I....... 8 ii

TABLE OF CONTENTS (continued)

PA~e, APPENDIX I - DATA TABLES AND FIGURES..........................................................

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-5

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

-6 Maximum Doses Resulting from Airborne R eleases...................................................................

1-10 Maximum Doses Resulting from Liquid D ischarges.........................................................................

1-14 10CFR20 Compliance Assessment........................................

1-15 Maximum Doses Resulting from Airborne Releases Based on Concurrent Meteorlogical Data..............................

1-19 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......................

1-21 Outer Ring TLD Locations....................................................

1-22 Fixed Air Sampling and TLD Sites........................................

1-23 Ingestion and Waterbome Exposure Pathway Sample Locations................................................................

-2 Radiological Environmental Monitoring Locations.............................................................................

1-25 Radiological Environmental Monitoring Program, Sampling Locations and Sample Collection and Analyses................................

1-26 Table 5.0-6 Radiological Environmental Monitoring Program Quarterly Sunnary..............................................................

.1-32 APPENDIX II-METEOROLOGICAL DATA.................................................................

APPENDIX M11 -2001 REMP SAMPLE RESULTS..........................................................

II-1 n3-I APPENDIX IV - INTERLABORATORY COMPARISON PROGRAM RESULTS....... IV-i APPENDIX V - ERRATA DATA (If applicable)...................................................

V-I iii

INTODUCTION 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, 1-131, 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 1-131 in milk are the most critical pathways at this site; however, an environmental monitoring program is conducted which includes these end many other pathways which are less significant in terms of radiation protection.

I

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.ffluent, 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 2.20E-02 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). The results of analysis confirm that the station is operating in compliance with 10CFR50 Appendix I, 10CFR20 and 40CFRI90.

j,0 EFFLUENTS 1.1 GaseOus Effineunts 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 2.49E+03 curies of fission and activation gases were released with a maximum quarterly average release rate of 1.38E+02. 11Ci/sec.

A total of 3.62E-02 curies of 1-131 were released duiring the year with a maximum quarterly average release rate of 1.57B-03 LCi/sec.

A total of 4.24W-03 curies of beta-gamMa emitters was released as airborne particulate matter with a maximum quarterly average release rate of 2.83E-04 V.Ci/sec, A total of 8.22E-06 curies of alpha-eretting radionuclides was also released.

A total of 2.42E+02 curies of tritium was released with a maximum quarterly average release rate of 1.17E+01 gCi/sec.

1.2 Liquids Released to linois River There were zero batch liquid releases in 2001. 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 Barnwell disposal facility or to waste processors. For fuither detail, refer to the LaSalle 2001 Radioactive Effluent Report. The submittal date of this report was April 30, 2002.

3.0 DOSE TOQMAN 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 Nobl Gases 3.1.1.1 Gamna Dose Rates Unit I 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 adult would be 2,20E-02 wrem (Table 3

3.1A-I) 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 -.23E-02 mtorem- (Table 3.4-1).

The maximum gamma air dose was 2.91E-02 nirad (Table 3.1-1) and 3.86E-02 nerad 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/cm2 and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year was 2.33E-02 mrem (Table 3.1-1) and 1.64E-02 mmcm (Table 3.4-1) based on concurrent meteorological data.

The maximum offsite beta air dose for the year was I.40E-03 mrad (Table 3.1-1) and 5.23E-03 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, 1-131, 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 radioiodinc 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 estimated to be 6.47E-04 pCi/m3 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 1-131 and the source of milk was taken to be the nearest dairy farm with the cows pastured from May through October. The maximum thyroid dose due to 1-131 was 1.15E-01 mrem (child) for the year (Table 3.1-I).

4

3.1.3 Concentrations of Particulates in Air Concentration contours of radioactive airborne particulates are shown in Figure 3.1-4. The maximum offsite average level is estimated to be 8.67E-01 pCi/62.

(Table 3.4-1) 3.2 Liquid Effluent Pathwas 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+00 and organ dose was 0.OOE+00 for the year (Table 3.2-1).

3.3 Assessment of Dose to Member of Public During the period January to December, 2001, LaSalle County Station did not exceed these limits as shown in Table 3.1-I 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 reaotor unit (1.5 mrem to the whole body or 5 marem to any organ during any calendar quarter, 3 mram to the whole body or 10 mrem to any organ during anyi calendar year).

1I-he 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 iodino-131, iodine-133, tritium, and radionucides in particulate form with half-lives greater than eight days in gaseous effluents released from each reactQr unit (7.5 mrem to auy organ during any calendar quarte, 15 mrem to any organ during any calendar year).

The IOCFR20 limit on Total Bffective Dose Equivalent to individual members ofthe public (100 mrcm).

Nuclear Regulatory Comnmission, 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 deternined for the temperature difference between the 375' and 33' levels.

Data recovery for these measurements was 100% during 2001 (Table 3.4-1) 5.0 ENVIRONMENTA

)

MONITORING Table 5.0-1 provides an outline of the Radiological Environmental Monitoring Program (REW) 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 envi'ronmental media are discussed below.

5.1 G0amma 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 20.7 mn. at the indicator locations and 18.8 mER at the control locations. TLD results are listed in Table 4.0 of Appendix Mi and locations are shown in Figures 5.0-1 and 5.0-2.

Quarterly external radiation dose at indicator air sampling locations averaged 20.1 mR and is similar to levels measured in 1986 (17.1 rnR), 1987 (17.8 mR), 1988 (16.5 mR),

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

1994 (15.4 mR), 1995 (15.3 niR), 1996 (15.9 mR) and 1997 (16.1 mR), 1998 (17.0 mR), 1999 (17.0 mE.) and 2000 (17.9 mR.). These differences are not statistically significant. In addition, new style TLDs were used in 2001 and a different vendor processed them.

5.2 Airborne 1-131 and Particulate Radioactivit Locations of the samplers are shown in Figure 5.0-3. Airborne' 1-131 remained below the LLD of 0.07 pCi/r3 throughout the year.

Gross beta concentrations ranged from 0.006 to 0.053 pCi/rn and averaged 0.027 pCi/n 3 and were similar to levels measured in 1985 (0.025 pCi/m 3), 1986 (0.027 pCi/rn3 except for the period from May 16 through June 6 when it was influenced by the nuclear reactor accident at Chermoby, 1987 (0.027 pCi/m), 1988 (0.031 pCi/m 3),

1989 (0.028 pCi/m ), 1990 (0.024 pCi/ra), 1991 (0.022 pCi/m), 1992 (0.022 pCi/.)m, 1993 (0.022 pCi/mr), 1994 (0.022 pCi/rm), 1995 (0.021 pCi/mr), 1996 (0.021 pCi/rn),

6

1997 ý0.022 pCiVn 3), 1998 (0.024 pCi/m3), 1999 (0.027 pCi/m3) and 2000 (0.028 pCi/zn).

Gamma isotopic results were below the LLD level of 0.01 pCi/.' 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.

Weeldy 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 gammaa-emitting nuclides above their respective LLD levels.

Gross beta activity averaged 5.3 pCi/L in the Illinois River at Seneca samples, with a range of 4.1-6.4 pCiVL. The Illinois River, Downstream sample averaged 5.3 pCi/L, with a range of 4.1-6.7 pCi/L.

Tritium activity in the quarterly upstream samples, Illinois River at Seneca, averaged 411.pCi/L with a maximum third quarter concentration of 654 pCi/L. In the Illinois River Downstream samples, tritium activity averaged 327 pCi/L with a maximum third quarter concentration of 663 pCi/L. These values are well below the-reporting level of 30,000 pCi/L.

Sediment samples were collectd twice a year from two indicator locations (Illinois River, Downstream) and analyzed for gamma-emitters.

Cs-13 4 and Cs-137 concentrations were below the detection limits of.0.15 pCi/g dry weight and 0.18 pCilg 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 ganm&a-emitting nuclides.

1-131 remained below the detection limits of 0.5 pCiL (May - October) and 5.0 pCi/L (November - April). Cs-134, Cs-137 and Ba/La-140 were below the LLD levels of 15, I8 and 15 pCi/L, respectively.

7

5.5 Terrestrial Radioactivity' Vegetables were collected in the third quartet 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% releases.

5.6 Sampale Collections All samples were collected as scheduled except those listed in the Listing of NMissed Samples, Section 2 of Appendix MI.

5.7 Program Modifications There were no changes to the program in 2001.

6.0 AŽNlALYTICAL PROCEDUJRS 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 20, 2001. The nearest livestock census was conducted by A. Lewis on August 20, 2001. The results of each census are presented on pages 32 and 33 of Appendix M.L 8.0 NEAREST RESMENT CENS US A census of the nearest residences within a 6.2-mile radius was conducted by A-Lewis on August 20,2001.

Results of the nearest residence census are presented on page 34 of Appendix MI.

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

10.0 ERRATA DATA Errata data is presented in Appendix V.

8

APPENDIX I DATA TABLES AND FIGURES I-1

Table 1.1-1 LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AD WASTE DISPOSAL ANNUAL REPORT (2001)

UNITS ONE AND TWO DOCKET NUMBERS 50-373 AND 50-374 GASEOUS EFFLUENTS-SUMMATION OF ALL RELEASES I Units lSt Lr I

2'nA tt I '*4ratlr I

ZIstiedI 4th Qtr ITotal Err~or %

A. Fission and Activation Gas Releases 1.'Total Reeale AWIdty Ci 4.01E+02 1.09E+03 6.74E-+02 3.24E+02 35%

j2. Average Release Rate 1uC71se 5.1 5E+01 1.38E+02 8.47E+01 4.08tE+01

13. Percen of Technical Specification I

jLimit B. Iodine Releases

1. Total 1-131 Activity Ci 6.81E-03 6.§9E-03 1.25E-02 1.09E-02 35%

2. Average Release Rate uCi/sec 7.47F-04 8.84E-04 1.57E-03 1.379-03

3. Percent of Technical Specification I

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

1. Gross Activiy Ci 5.43E-04 5.97E-04 2,25E-03 7.48E-04 39__

2. Average Release Rate uC~isec 6.98E-05 8.87E-05

,3-4 91-5

3. Percent of Technical gizcification L*[t T, ross Alpha Activity Ci 5.08E-06 1.57E-06 1.19E-6

<7100E-] I "

D. Tritium Releases

l. Total Rease Activity Ci 6.02E+01 9.17E+01 4.85E+01 5.14E+01 21%

,_.I',

1 U* U OAm A,', Jt'"

1U

2. Averag Release Rate

3. Percent of Technical Specification Limit uCilsec 6.46E+00 1.17E+IJ1 1.7E0 V.1U:U I

1-2

"*I This information is contained In the Radiological Impact on Man section of the report.

"<" indicates acivity of sample is less than LLD given In uCi/ml

=F 1 2nd Q l.41 r"PUU Tp

Table 1.2-1 LASALLE COUNTY NUCLEAR POWER STATION EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (2001)

LIQUID RELEASES UNIT 1 SUMMATION OF ALL LIQUID RELEASES I Units I lstQtr I 2ndQ~r I z~~

Estimta]ed 4tb?

ýTotal&=lO%

A. Fission and Activation Products

. Tot Acivity d

Ci

<LLD

`<LU D

<LLD

<LL 10%

2. Average ConcV-mon Rvreaiedi uCi/m

<LWLD

L=

<LLD

3. Percent of Applicable Limit*

B, Tritium

1. Total Actvity Released Ci

<LLD

<LID L

12%9 T2. Average Conceniration Rcleased uCi/ml

<LD

< LLD

<LLD

3. Percent of Applicable Limit C Dissolved Noble Gases T. Tobtal Activity Released Ci

<LLD D

<LD fLLO N/A i2. Avmage Conwen'tion ReleasFed uCi/al l

<LID AM

-<LD-

-qLID

3. Pa*

of 4Appllca-ble Limit D. Gross Alpha T. TotalActivity Rleasd (estimate)

Ci

<1.00E-07

<I.0OE-07 <I0 0E-07 N/A

2. Average Concentration Relased uCYmI

<1.00E-07

<1.00E-07 <1.00E.07 <1.00E-07

3. Pcet of Applcable.inu E..Volume of Liquid Waste tolDischargel liters 0.ooE+O0 O.OOE+00 0.OoE00

.ooE+0 2%

F.Vlm fDilution Water ers I.OE0 0.00E+I00 O.OOE+00 0.O0+0 O00E+00 5%

"This information is ¢ontained in the Radiological Impact on Man section of the report "I Indicates activity of sample Is less than LLD given In uCi/ml 1-3 I units I lstQtr I 2ndQt I 3rdQtr I

Table 1.2-1 (continued)

LASALLE COUNTY NUCLEAR POWER STATJON EFFLUENT AND WASTE DISPOSAL ANNUAL REPORT (200)1)

LIQUID RELEASES UNIT 2 SUMMATION OF ALL LIQUID RELEASES A. Fission and Activation Products T. Total Activ fiy *+++-*-m

<LLD )

" M.

D -

LL

2. Ave-rage Couecenafon Released Ui/

<D

<LLD

<LLD kýLD I. Peroat of RpIMcl.*it All*"

S. Tritium

1. Total Activity R, ea.ed Ci

<LLD

<LU

.12%

~

.~

M I~ I

.T f

~ L

2. Averaie Conceneation Relei

3. Pmcent of Applicable Limit

r..

<LLD C. Dissolved Noble Gases D. Gross Alpha i,.Vo f

mo.qwdWastetoDi charge lte

-1.0 0 0 E+0 ' 0.OOE+00 0.O+00 2%

F.Volume ioue-owater It ;-es o.ooE+0o O.OO, 0

.oo 0 1 oooE+0o I 5

s infbnna*ti*

is contbaned In the Radiological Impact on Man section of the repoM.

"<" indicates activity of sample is less than LLD given in uCi/ml 1-4

TABLE 2.0-1 Table 2.0-1 has been deliberately deleted. For Solid Waste Disposal detail, refer to the LaSalle County Station 2001 Effluent Report.

1-5

Figure 3.1-1 Estimated Cumulative Gamma Dose (in mrem) from the LaSalle Station for the period January-December 2001 Isopleth Labels Small figure - multiply by 10"4 Large figure - multiply by 10.4 0 1t Str10tom otieOd 0

5 orsI0 1es0 S.

neca 1-6 I

I I

t

.I I

B I

I

Figure 3.1-2 Estimated Total Concentrations (in pCi/m3) of Noble Gases from the LaSalle Station for the period January-December 2001 Isopleth Labels Small figure - multiply by 102 Large figure - multiply by 10' MI 0

5 10 15 20mi 1-7

Figure 3.1-3 Estimated Total Concentrations (in pCi/m3) of lodines from the LaSalle Station for the period January-December 2001 isopleth Labels Small figure - multiply by 1t0 Large figure - multiply by 106 0

5 10 15 20a 1-8

Figure 3.1-4 Estimated Total Concentrations (in pCVm3) of Particulates from the LaSalle Station for the period January-December 2001 Isopleth Labels Small figure - multiply by 10"O Large figure - multiply by 10"3 0

5 olt5

° Mar I0 20mi 1-9

Table 3.1-1 LASALLE STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 04/11/02 INFANT RECEPTOR TYPE GAMMA AIR (MRAD)

BETA AIR (MRAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM) 1ST QUARTER JAN-MAR 9.29E-03 (WSW) 2.88E-04 (ESE )

7.02E-03 (WSW) 7.39E-03 (WSW) 4.65E-03 (ESE) 2ND QUARTER APR-JUN 8.05E-03 (WSW) 6.18E-04 (ESE) 6.08E-03 (WSW) 6.59E-03 (WSW) 2.07E-02 (ESE) 3RD QUARTER JUL-SEP 4.74E-03 (WSW )

2.67E-04 (ESE )

3.58E-03 (WSW) 3.79E-03 (WSW

)

3.48E-02 (ESE )

4TH QUARTER OCT-DEC 6.99E-03 (WSW) 2.32E-04 (ESE) 5.28E-03 (WSW) 5.57E-03 (WSW) 1.55E-02 (ESE)

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

I INFANT RECEPTOR

% OF APP I. -

GAMMA AIR (MRAD)

BETA AIR (MRAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM)

QTRLY OBJ 5.0 10.0 2.5 7.5 7.5 1ST QTR JAN-MAR 0.19 0.00 0.28 0.10 0.06 2ND QTR APR-JUN 0.16 0.01 0.24 0.09 0.28 3RD QTR JUL-SEP 0.09 0.00 0.14 0...05 0.46 4TH QTR OCT-DEC 0.14 0.00 0.21 0.07 0.21 YRLY OBJ 10.0 20.0 5.0 15.0 15.0 THYROID THYROID THYROID THYROID

% OF APP.

I 0.29 0.01 0.44 0.16 0.50 THYROID RESULTS BASED UPON:

ODCM ANNEX REVISION 1.7 ODCM SOFTWARE VERSION 1.1 ODCM DATABASE VERSION 1.1 SEPTEMBER 1995 January 1995 January 1995 1-10 ANNUAL 2.91E-02 (WSW) 1.40E-03 (ESE )

2.20E-02 (WSW )

2.33E-02 (WSW

)

7.56E-02 (ESE)

Table 3.1-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 04/11/02 CHILD RECEPTOR TYPE

,G'AMMA AIR (MRAD)

BETA AIR (MRAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM)

IST QUARTER JAN-MAR 9.29E-03 (WSW) 2.88E-04 (ESE) 7.02E-03 (WSW )

7.39E-03 (WSW) 3.83E-03 (NNE) 2ND QUARTER APR-JUN 8.05E-03 (WSW )

6.18E-04 (ESE) 6.08E-03 (WSW) 6.59E-03 (WSW) 3.46E-02 (NNE) 3RD QUARTER JUL-SEP 4.74E-03 (wsw) 2.67E-04 (ESE) 3.58E-03 (wSw) 3.79E-03 (WSW) 5.40E-02 (NNE) 4TH QUARTER OCT -DEC 6.99E-03 (WSW) 2.32E-04 (ESE) 5.28E-03 (WSW) 5.57E-03 (wSW) 2.28E-02 (NNE)

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

% OF APP I. -

GAMMA AIR (MRAD)

BETA AIR (MRAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM)

QTRLY OBJ 5.0 10.0 2.5 7.5 7.5 1ST QTR JAN-MAR 0.19 0.00 0.28 0.10 0.05 2ND QTR APR-JUN 0.16 0.01 0.24 0.09 0.46 3RD QTR JUL-SEP 0.09 0.00 0.14 G.05 0.72 4TH QTR OCT-DEC 0.14 0.00 0.21 0.07 0.30 YRLY OBJ 10.0 20.0 5.0 15.0 15.0 THYROID THYROID THYROID THYROID

% OF APP.

I 0.29 0.01 0.44 0.16 0.77 THYROID RESULTS BASED UPON:

ODCM ANNEX REVISION ODCM SOFTWARE VERSION ODCM DATABASE VERSION 1.7 SEPTEMBER 1995 1.1 January 1995 1.1 January 1995 1-11 ANNUAL 2.91E-02 (WSW) 1.40E-03 (ESE) 2.20E-02 (WSW) 2.33E-02 (WSW)

1. 15E-01 (NNE)

Table 3.1-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE 01/01/01 TO 12/31/01 CALCULATED 04/11/02 TEENAGER RECEPTOR TYPE GAMMA AIR (MRAD)

BETA AIR (MRAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM) 1ST QUARTER JAN-MAR 9.29E-03 (WSW )

2.88E-04 (ESE )

7.02E-03 (WSW) 7.39E-03 (WSw )

2.76E-03 (NNE) 2ND QUARTER APR-JUTN 8.05E-03 (wSW) 6.18E-04 (ESE )

6.08E-03 (WSW) 6.59E-03 (WSW) 2.23E-02 (NNE) 3RD QUARTER JUL-SEP 4.74E-03 (WSW )

2.67E-04 (ESE )

3.58E-03 (WSW )

3.79E-03 (wSw )

3.41E-02 (NNE )

4TH QUARTER OCT-DEC 6.99E-03 (WSW) 2.32E-04 (ESE) 5.28E-03 (WSw) 5.57E-03 (WSW) 1.46E-02 (NNE)

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

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

GAMMA AIR (MRAD)

BETA AIR (MRAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM)

QTRLY OBJ 5.0 10.0 2.5 7.5 7.5 1ST QTR JAN-MAR 0.19 0.00 0.28 0.10 0.04 2ND QTR APR-JUN 0.16 0.01 0.24 0.09 0.30 3RD QTR JUL-SEP 0.09 0.00 0.14 0'.05 0.45 4TH QTR OCT-DEC 0.14 0.00 0.21 0.07 0.19 YRLY OBJ 10.0 20.0 5.0 15.0 15.0 THYROID THYROID THYROID THYROID

% OF APP.

I 0.29 0.01 0.44 0.16 0.49 THYROID RESULTS BASED UPON:

ODCM ANNEX REVISION 1.7 ODCM SOFTWARE VERSION 1.1 ODCM DATABASE VERSION 1.1 SEPTEMBER 1995 January 1995 January 1995 1-12 ANNUAL 2.91E-02 (WSW) 1.40E-03 (ESE )

2.20E-02 (WSW) 2.33E-02 (WSW) 7.38E-02 (NNE)

Table 3.1-1 (continued)

LASALLE STATION UNIT ONE ACTUAL 2001 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES PERIOD OF RELEASE - 01/01/01 TO 12/31/01 CALCULATED 04/11/02 ADULT RECEPTOR TYPE GAMMA AIR (MRAD)

BETA AIR

(.MAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM) 1ST QUARTER JAN-MAR 9.29E-03 (WSW) 2.88E-04 (ESE) 7.02E-03 (WSW) 7.39E-03 (WSW) 3.12E-03 (NNE) 2ND QUARTER APR-JUN 8.05E-03 (wSW) 6.18E-04 (ESE )

6.08E-03 (WSW) 6.59E-03 (WSW) 2.21E-02 (NNE) 3RD QUARTER JUL-SEP 4.74E-03 (WSW) 2.67E-04 (ESE) 3.58E-03 (WSW )

3.79E-03 (WSW )

3.36E-02 (NNE) 4TH QUARTER OCT-DEC 6.99E-03 (WSW) 2.32E-04 (ESE )

5.28E-03 (WSW )

5.57E-03 (wSw )

1.46E-02 (NNE)

THYROID THYROID THYROID THYROID THYROID THIS IS A REPORT FOR.THE CALENDAR YEAR 2001 COMPLIANCE STATUS -

10CFR 50 APP.

I ADULT RECEPTOR

% OFAPP I. - ------------

GAMMA AIR (MRAD)

BETA AIR (MRAD)

TOT.

BODY (MREM)

SKIN (MREM)

ORGAN (MREM)

QTRLY OBJ 5.0 10.0 2.5 7.5 7.5 1ST QTR JAN-MAR 0.19 0.00 0.28 0.10 0.04 2ND QTR APR-JUN 0.16 0.01 0.24 0.09 0.29 3RD QTR JUL-SEP 0.09 0.00 0.14 0.05 0.45 4TH QTR OCT-DEC 0.14 0.00 0.21 0.07 0.19 YRLY OBJ 10.0 20.0 5.0 15.0 15.0 THYROID THYROID THYROID THYROID

% OF APP.

I 0.29 0.01 0.44 0.16 0.49 THYROID RESULTS BASED UPON:

ODCM ANNEX REVISION ODCM SOFTWARE VERSION ODCM DATABASE VERSION 1.7 SEPTEMBER 1995 1.1 January 1995 1.1 January 1995 1-13 ANNUAL 2.91E-02 cWsw )

1.40E-03 (ESE )

2.20E-02 (WSW )

2.33E-02 (WSW) 7.33E-02 (NNE)

TABLE 3.2-1 Table 3.2-1 has been deliberately deleted. There were no liquid releases in 2001.

1-14

Table 3.3-1 LASAL.LE STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATE*D 02/27/02

1.

10 CPR 20.1301 (a) (1) Compliance Total Effective Dose Eqivalent,

=iem/yr 10 CFR 20.1301 (a) (1) limit mrem/yr

% of limit Compliance ist 2nd Qtr Qtr TEDE 9.41E-02 1.04E-01 Sutmary 3rd Qtr

1. 02E-01 10CFR20 4th Qtr 9.77E-02 RESULTS BASED UPON: ODCM ODCM ODCM ANNEX REVISION 1.7 SEPTEMBER 1995 SOFTWARE VERSION 1.1 January 1995 DATABASE VERSION 1.1 January 1995 1-15 3.97E-01 100.0 0.40

% of Limit 0.40

Table 3.3-1 (continued)

LASALLE STATION UNIT ONE 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATED 02/27/02

2.

10 CPR 20.1301 (d) /40 CPR 190 Compliance Dose (Mrem) whole Body (DDE)

Organ Dose (CDE)

Plume Skyshine Ground Total Thyroid Gonads Breast Lung Marrow Bone Remainder CEDE TEDE 2.20E-02 3.48E-01 9.39E-04 3.71E-01 5.60E-02 2.49E-02 2.49E-02 2.49E-02 2.49E-02 2.49E-02 2.50E-02 2.59E-02 3.97E-01 25.0 75.0 25.0 25.0 25.0 25.0 25.0 25.0 1.49 0.07 0.10 0.10 0.10 0.10 0.10 0.10 100.0 0.40 RESULTS BASED UPON: ODCM ODCM ODCM ANNEX REVISION 1.7 SEPTEMBER 19$5 SOFTWARE VERSION 1.1 January 1995 DATABASE VERSION 1.1 January 1995 1-16 Limit (torem)

% of Limit

Table 3.3-1 (continued)

LASA*LE STATION UNIT TWO 10 CFPR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATED 02/27/02

1.

10 CFR 20.1301 (a)(i.) Compliance Total Effective Dose Eqivalent, mrem/yr 3.41E-01 10 CFR 20.1301 (a)(1) limit mrem/yr 100.0

% of limit 0.34 Compliance lst 2nd Qtr Qtr TEDE 8.73n-02 8.29E-02 Summary 3rd Qtr 8.1SE-02 10CFR20 4th Qtr 8.94E- 02 RESULTS BASED UPON: ODCM ODCM ODCM ANNEX REVISION 1.7 SEPTEMBER 1995 SOFTWARE VERSION 1.1 January 1995 DATABASE VERSION 1.1 January 1995 1-17

!k of Limit 0.34

Table 3.3-1 (continued)

LASALLE STATION UNIT TWO 10 CFR 20 COMPLIANCE ASSESSMENT PERIOD OF ASSESSMENT 01/01/01 TO 12/31/01 CALCULATED 02/27/02

2.

10 CFR 20.1301 (d)/40 CFR 190 Compliance Dose Limit

% of (mrem)

(torem)

Limit Whole Body (DDE)

Organ Dose (CDE)

Plume Skyshine Ground Total Thyroid Gonads Breast Lung Marrow Bone Remainder CEDE TEDE

0. OOE+00 3.41E-01 0.00E+00 3-.41E-01 0.OOE+00 0.00E+00 0.00E+00 0.00E+00 O.OOE+00 0.0 08+00 0.001+00 0.00E+00 0.OOE+00 3.41E-01 25.0 1.36 75.0 25.0 25.0 25.0 25.0 25.0 25.0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.0 0.34 RESULTS BASED UPON: ODCM ODCM ODCM ANNEX REVISION 1.7 SEPTEMBER 1995 SOFTWARE VERSION 1.1 January 1995 DATABASE VERSION 1.1) Jantiary 1995 1-18

Table 3.4-1 LASALLE STATION - UNIT I

MAXIMUM DOSES RESULTING FROM AIR8ORNE RELEASES CURRENT PERIOD OF RELEASE:

October I - December 31 YEAR: 2001 CURRENT PERIOD CURRENT QUARTER THIRD QUARTER SECOND QUARTER FIRST QUARTER GAHMtfA AIR (mrad)

BETA AIR (mrad)

WHOLE BODY (mrem)

SKIN (mrem)

ORGAN (mrem)

CRITICAL PERS-ORG 3.410E-03(WSW) 4.610E-04( E )

1.335E-03(ESE) 1.815E-03(ESE)

I 595E-04( E I CH-TH 3.41OE-03(WSW) 4.610E.04( E )

1.335E-03(ESE) 1.SISE-03(ESE) 1.595E-04( E CH-TH 4.655E-03(WSW) 6.300E-04(NNE) 1.775E-03(SSW) 2.130E-03(SSW) 2.225E-04(NNE)

CH.TH 6.750E-03(WSW) 1.265E.03(WSW) 2.040E-03(SSW) 2.535E-03(NNE) 1.41OC-04(WSW)

CH-TH 7.750E-03( SE) 9.400E-04( SE) 2.290E-03( SE) 3.375E-03( SE) 1.535E-04( SE)

CH-TH 1.932E-O2(WSw) 2.617E-03(ESE) 6.145E-03(SSW)

B.185E-03(ESE) 5.095E-04( E I CH-TH COMPLIANCE STATUS TYPE OF DOSE QUP GAMMA AIR (mrad)

BETA AIR (mrad)

WHOLE BODY (mrem)

SKIN (mrem)

ORGAN (mrem)

CRITICAL PERSON-ORGAN 10 CFR 50 APP. 1 10 CFR 50 APP.!

RTERLY OBJECTIVE

% OF APP I

YEARLY OBJECTIVE 5.0 10.0 2.5 7.5 7.5

.07

.00

.05

.02

.00 (CH-TH) 10.0 20.0 5.0 15.0 15.0 CRITICAL ORGANS:

BN-BONE. LV-LIVER. TB=TOTAL BODY.

TH-THYROID.

KD-KIONEY.

LN-LUNG. G1-GI-LLI CRITICAL PERSON: AD-ADULT. TAdTEENAGER.

CH-CHILD. IN-INFANT Date of calculation:

4/18/2002 1-19 TYPE OF DOSE ANNUAL OF APP.

I

.19

.01

.12

.05

.00 (CH-TH)

Table 3.4-1 (continued)

LASALLE STATION - UNIT 2

MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES CURRENT PERIOD OF RELEASE:

October I - December 31 YEAR: 2001 CURRENT PERIOD CURRENT QUARTER THIRD QUARTER SECOND QUARTER FIRST QUARTER GAMMA AIR (mrad)

BETA AIR (mrad)

WHOLE BODY (mrem)

SKIN (mrem)

ORGAN (mrem)

CRITICAL PERS-ORG 3.410E-03(WSW) 4.610E-04( E )

1.335E-03(ESE) 1.815E-03(ESE) 1.595E-04( E CH-TH 3.410E-03(WSW) 4.610E-04( E )

1.335E-03(ESE) 1.815E-03(ESE) 1.595E-04( E )

CH-TH 4.655E-03(WSW) 6.300E-04(NNE) 1.775E-03(SSW) 2.130E-03(SSW) 2.225E-04(NNE)

CH-TH 6.750E-03(WSW) 1.265E-03(WSW) 2.040E-03(SSW) 2.535E-03(NNE) 1.410E-04(WSW)

CH-11l 7.750E-03( SE) 9.400E-04( SE) 2.290E-03( SE) 3.375E-03( SE) 1.535E-04( SE)

CH-TH 1.932E-O2(wSw) 2.617E-O3(ESE) 6.145E-03(SSW)

B.185E-03(ESE) 5.095E-04( E CH-TH COMPLIANCE STATUS TYPE OF DOSE QUA GAMMA AIR (mrad)

BETA AIR (mrad)

WHOLE BODY (mrem)

SKIN (mrem)

ORGAN (mrem)

CRITICAL PERSON-ORGAN 10 CFR 50 APP. 1 10 CFR SO APP.I ARTERLY OBJECTIVE X OF APP I YEARLY OBJECTIVE S.0 10.0 2.5 7.5 7.5

.07

.00

.05

.02

.00 (CH-TH) 10.0 20.0 5.0 15.0 15.0 CRITICAL ORGANS: BN-BONE.

LV-LIVER. TB-TOTAL BODY.

TH-THYROID.

KD-KIDNEY.

LN-LUNG. GI-GI-LLI CRITICAL PERSON: AD-ADULT.

TA-TEENAGER.

CH-CHILD.

IN-INFANT Maximum Offsite Values (pCi/m3)

Iodine 6.47E-04 Date of calculation:

4/1B/2002 Particulate Matter 8.67E-01 Data Recovery (priority parameters) 1-20 TYPE OF DOSE ANNUAL SOF APP. I

.19

.01

.12

.05

.00 (CH-TH) 100%

Figure 5.0-1 I

U

A U

as l w L4~

Kfionli I TID Locatin 1-21 I

LASALLE COUNTY STATION TNN1ER RING TLD LOCATIONS

04/26/2002 10:23 8475644517 PG 38 Figure 5.0-2 216-4 0 z 214-4 3 214-3 21340 21". 6 21t a 21W Grind filg.

, 211-2

2064 U

i~J2 vozmn*

it Lasssit.SI8Io 1

'L ASALLECotmSTATION w

re:U GLDW T ONSo 1-22 PAGE 03/03

Figure 5.0-3 I

0 4

OQand Ridge I

La Salt. Ca"nt Ak SampVng Loeutonl two 1-23 I eunsomm S I I

I I

Verons Konsmon L-01 NaTs~tt No.1 I L-7 Senam L-W OnsWe No.)

LAO6 Matm~sef L1.0 NUMzIs No. 4 L-10 SMIaCT L-05 Onsito No.S 5 L11 Rasmm LO4 Ntarstt*No.

Figure 5.0-4 To L-42 A

A Fish N

Milk Sediment 0

Water LaSalle County Station7 Ingestion and Waterborne Exposure Pathwal Sample Locafions 1-24 L-21 Illinois River at Seneca L-27 LSCS Onsite Well at Station L-28 Marseilles Well L-35 Marseilles Pool of Illinois River L-36 Illinois River Downstream of Discharge L-40 Illinois River Downstream L-41 Illinois River Downstream L-42 Biros Farm

TABLE 5.0-1 "C"

t12 LaSalle County Station Radiological Environmental 0

a Monitoring Stations L-01 Nearsite No. 1 L-03 Onsite No. 3 V

L-04 Nearsite No. 4

%0 L-05 Onsite No. 5 V

L-06 Nearsite No. 6 L-07 Seneca L-08 Marseilles L-10 Streator L-11 Ransom L-21 Illinois River at Seneca L-27 LSCS Onsite Well at Station L-28 Marseilles Well L-35 Marseilles Pool of Illinois River L-36 Illinois River Upstream of Discharge L-40 Illinois River Downstream V.

L-41 Illinois River Downstream L-42 Biros Farm L-Quadrant 1 L-Quadrant 2 L-Quadrant 3 WO L-Quadrant 4 L-Control CENSUS Dairy Residence Livestock 1-25

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 0.5 NNW R

L-03 Onsite No. 3 0.2 ENE D

L-04 Far Field No. 4 3.2 E

E L-05 Onsite Stat~io6-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

J

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

J L-110-1,2 0.6 SSW K

L-11 lb-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.

1-26

TABLE 5.0-2 (continued)

LASALLE STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

2. TLDs

b. Special TLD locations (continued)

Distance (miles)

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

3. MILK Site Codea L-42 (C)

Location Biros Farm Distance (mibl) 14.2 Direction N

NNE NE ENE ESE E

SE SSE S

SSW SW WSW WSW W

WNW NW NNW Sector A

B C

D F

E G

H J

K L

M M

N P

Q R

Direction Sector E

E

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

At Station 7.0 Sector NW a

b Control (background) locations are denoted by a "C" after site code. All other locations are indicators b Farmer sold cows in February, 2000.

Replaced Lowery Dairy in February, 2000.

Q 1-27

TABLE 5.0-2 (continued)

LASALLE STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

5. SURFACE WATER Location Illinois River at Seneca Illinois River Downstream Distance (miles) 4.0 5.2 Distance (miles)

Location Marseilles Pool of Illinois River 6.5 Illinois River Upstream of Discharge4.3

7.

SHORELINE SEDIMENTS Distance (miles)

Location Illinois River Downstream Illinois River Downstream 5.2 4.6 Direction Sector NE NNW C

R Direction Sector NW NNE Direction NNW NNW Q

B Sector R

A

8.

VEGETATION Site Codea 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 1-28 Site Codea L-21 (C)

L-40

6. FISH Site Codea L-35 L-36 (C)

Site Codea L-40 L-41 Location Distance (miles)

Direction Sector 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.

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-01 Nearsite No. I (or if weekly 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.

if gross beta in a sample exceeds 10 times the yearly mean of control L-04 Rte. 70 samples and radioactivity is L-07 Seneca confirmed as having its origin in L-08 Marseilles airborne effluents from station L-11 Ranson

2. Airborne Same as 1.

Canister exchange 1-131 Biweekly Iodine biweekly

3. Air Sampling Same as I.

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 11 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 202-3,4 203-1,2 204-1,2 205-1,2,3,4 206-1,2 207-1,2 208-1,2 209-1,2 210-1,2 211-1,2 Control (background) locations are denoted by a "C" in this column. All other location are indicators.

1-29

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-2t2-1,2 213-3,4 214-3,4 215-3,4 216-3,4

5. Milk L-42 (C)

Biros Farm Biweekly:

1-131 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, on broad leaf Welboume available at harvest.

vegetation.

Quad 3 M. Olsen 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

8. Surface Water L-21 (C)

Illinois River Weekly Gross Beta Monthly composite.

at Seneca Gamma Isot.

Monthly composite.

L-40 Illinois River Tritium Quarterly composite.

Downstream

9. Fish (at least L-35 Marseilles Pool Two times/year Gamma Isot.

Two times/year on two species) of Illinois River edible portions only.

L-36 (C)

Illinois River Upstream of Discharge

10. Sediments L-40 Illinois River Semiannually Gamma 1sot.

Semiannually Downstream L-41 Illinois River Downstream l1. Land Use Census Milcb Animals

a.

Site Boundary to 2 miles

a. Enumeration Annually during grazing by a door to door season.

or equivalent counting technique.

b.

2 miles to 6.2 miles

b. Using referenced information from county agricultural agents or other reliable sources.

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

1-30

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

11. Land Use Census (continued)

c.

At dairies listed in Item 5.

c. Inquire as to feeding practices:

I. Pasture only.

Annually during grazing season.

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%.

In all sectors up to 6.2 miles.

Annually during grazing season.

1-31 Nearest Residence

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

Table 5.0-3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Docket No. 50-373, 50-374 Location of Facility LaSalle County, Illinois Reporting Period 1st Quarter 2001 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units)

Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Air Gross 65 0.01 0.027 (52/52)

L-10, Streator 0.029 (13/13) 0.029 (13/13) 0 Particulates Beta (0.017-0.041) 13.5 mi. SW, Sector L (0.017-0.046)

(0.017-0.046)

(pCi/m 3)

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 1-131 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 5.4 (3/3)

L-21, Illinois River 5.7 (3/3) 5.7 (3/3) 0 (pCi/L)

(4.7-5.8) at Seneca (4.9-6.4)

(4.9-6.4) 4.0 mi. NE, Sector C Gamma Spec.

6 Cs-134 15

<LLD

<LLD 0

Cs-137 18

<LLD

<LLD 0

Other ODCM Required 15-30

<LLD

<LLD 0

Gammas Tritium 2

200 254(1/1)

L-40, Illinois River 254(1/1)

<LLD 0

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 20 (82/82)

L-201-4, 4.0 mi. N, 24(1/1) 17(2/2) 0

Background

(18-24)

Sector A (17-17)

(TLDs)

(mRIQtr.)

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

1-32

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 2001 (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 0.022 (49/52)

L-05b Onsite No. 5 0.023 (12/13) 0.023 (12/13) 0 Particulates Beta (0.010-0.032) 0.3mi. ESE, Sector F (0.013-0.031)

(0.014-0.031)

(pCi/m 3)

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 30 0.07

<LLD

<LLD 0

(pCi/m3)

Milk 1-131 6

0.5/ 5c None

<LLD 0

(pCi/L)

Gamma Spec.

6 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

Fish Gamma Spec.

8 (pCi/g wet)

Cs-134 0.10

<LLD

<LLD 0

Cs-137 0.10

<LLD

<LLD 0

Other ODCM Required 0.13-0.26

<LLD

<LLD 0

Gammas Other Gammas 0.20-0.30

<LLD

<LLD 0

Bottom Gamma Spec.

2 Sediments (pCi/g dry)

Cs-134 0.15

<LLD None 0

Cs-137 0.18

<LLD None 0

Other Gammas 0.10-0.60

<LLD None 0

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

b Locations L-05 and L-10 (C) had identical means of 0.023 pCi/m 3. Both are detailed in this summary.

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

I - 33

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 Quarter 2001 (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 Surface Water Gross Beta 6

4 4.9 (3/3)

L-40, Illinois River 4.9 (3/3) 4.7 (3/3) 0 (pCi/L)

(4.1-5.7)

Downstream (4.1-5.7)

(4.1-5.4) 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

<LLD L-21, Illinois River 651 (1/1) 651(1/1) 0 at Seneca 4.0 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 22.0 (81/82)

L-06, Nearsite No. 6, 26 (1/1) 21.5 (2/2) 0

Background

(18-26) 0.4 mi. WSW, Sector (21-22)

(TLDs)

M (mR/Qtr.)

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

I - 34

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 2001 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units)

Analyses LLD Mean a Quarterly Mean Range Meana Results Range Range Air Particulates Gross Beta 65 0.01 0.027 (52/52)

L-10, Streator 0.029 (13/13) 0.029 (13/13) 0 (pCi/m3)

(0.016-0.040) 13.5 mi. SW, Sector (0.018-0.039)

(0.018-0.039)

L 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

<LL0 0

(pCi/mi3)

Milk 1-131 6

0.5 None

<LLD 0

(pCi/L)

Gamma Spec.

6 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

Vegetation 1-131 10 0.06

<LLD (pCi/g wet)

<LLD 0

Gamma Spec.

10 Cs-134 0.06

<LLD

<LLD 0

Cs-137 0.08

<LLD

<LLD 0

Other Gammas 0.01-0.10

<LLD

<LLD 0

Surface Water Gross Beta 6

4 5.5 (3/3)

L-21, Illinois River at 6.2 (3/3) 6.2 (3/3) 0 (pCi/L)

(5.1-5.8)

Seneca (6.1-6.4)

(6.1-6.4) 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

L40, Illinois River Tritium 200 663 (1/1)

Downstream 663 (1/1) 654 (1/1) 4.0 mi NNW, Sector 0

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

I - 35

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 Quarter 2001 (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 19.0 (82/82)

L-105-1, 0.7 mi E, 25 (1/1) 18 (2/2) 0

Background

(15-25)

Sector E (18-18)

(TLDs)

(mR/Qtr.)

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

1-36

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 2001 (County, State)

Sample Type and Indicator Location with Highest Control Number of Type Number of Locations Highest Meana Locations Non-routine (Units)

Analyses LLD Meana Quarterly Mean Range Meana Results Range Range Air Particulates Gross Beta 65 0.01 0.032 (52/52)

L-01b, Onsite No. I 0.033 (13/13) 0.030 (13/13) 0 (pCi/m 3)

(0.016-0.053) 1.5 mi. NNW, Sector R (0.022-0.053)

(0.014-0.042)

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 30 0.07

<LLD

<LLD 0

(pCi/mi3 )

Milk 1-131 4

0.5/5c None

<LLD 0

(pCi/L)

Gamma Spec.

4 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

Fish Gamma Spec.

9 (pCi/g wet)

Cs-134 0.10

<LLD

<LLD 0

Cs-137 0.10

<LLD

<LLD 0

Other ODCM-0.13-0.26

<LLD

<LLD 0

Required Gammas 0.20-0.30

<LLD

<LLD 0

Other Gammas Bottom Gamma Spec.

2 Sediments (pCi/g dry)

Cs-134 0.15

<LLD None 0

Cs-137 0.18

<LLD None 0

Other Gammas 0.10-

<LLD None 0

0.60 I

I I

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

b Locations L-01 and L-06 had identical means of 0.033 pCi/m3. Only L-01 is detailed in this summary.

c 0.5 pCi/L (May-October); 5 pCi/L (November-April)

I-37

Table 5.0-6 (continued)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility LaSalle Nuclear Power Station Location of Facility LaSalle County, Illinois (County, State)

Docket No. 50-373, 50-374 Reporting Period 4th Quarter 2001 1-38 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 Surface Water Gross Beta 6

4 5.6 (3/3)

L-40, Illinois 5.6 (3/3) 4.9 (3/3) 0 (pCi/L)

(4.9-6.7)

Downstream, 4.0 mi.

(4.9-6.7)

(4.6-5.1)

Gamma Spec.

6 NNW, Sector R Cs-134 15

<LLD

<LLD 0

Cs-137 18

<LLD

<LLD 0

Other ODCM Required 15-30

<LLD

<LLD 0

Gammas Tritium 2

200 237 (1/1)

L-40, Illinois 237(1/1)

<LLD 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 ODCM Required 15-30

<LLD None 0

Gammas Tritium 2

200

<LLD None 0

Gamma Gamma Dose 84 9.7 22.0 (82/82)

L-208.2 28 (1/1) 18.5 (2/2) 0

Background

(15-28) 4.5 mi. S, Sector J (17-20)

(TLDs)

(mR/Qtr.)

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

LASALLE APPENDIX II METEOROLOGICAL DATA II - 1

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

JANUARY-MARCH 2001 STABILITY CLASS -

EXTREMELY UNSTABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 0.8-3 0

0 0

0 WIND SPEED (in mph) 4-7 8-12 13-18 19-24

> 24 TOTAL 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:

II - 2 0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

JANUARY-MARCH 2001 STABILITY CLASS MODERATELY UNSTABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION 0.8-3 WIND SPEED (in mph) 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 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

II - 3 0

0 0

0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS SLIGHTLY UNSTABLE (DIFF TEMP 375-33 FT)

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 0.8-3 0

0 0

0 Hours of calm in this stability class:

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

> 24 TOTAL 4

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 II - 4

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

JANUARY-MARCH 2001 STABILITY CLASS -

NEUTRAL (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND SPEED (in mph)

WIND DIRECTION 0.8-3 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE 4-7 4

1 9

5 5

4 4

1 3

5 7

8 3

0 8-12 13-18 19-24

> 24 TOTAL 11 22 16 18 10 16 12 6

5 8

18 24 21 20 31 15 0

52 16 15 9

6 15 5

4 11 16 19 22 29 46 45 39 0

20 4

3 7

4 9

6 3

7 12 7

19 35 39 77 31 0

1 6

23 4

3 0

6 0

6 Ii 7

10 34 28 59 6

0 88 49 67 44 28 44 33 17 33 48 54 80 131 141 220 94 0

TOTAL 4

78 253 Hours of calm in this stability class:

349 0

283 204 1171 Hours of missing wind measurements in this stability class:

6 Hours of missing stability measurements in all stability classes:

0 II-5

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

JANUARY-MARCH 2001 STABILITY CLASS SLIGHTLY STABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION 0.8-3 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL WIND SPEED (in mph) 4-7 8-12 13-18 19-24

> 24 1

3 11 7

2 4

3 5

3 9

14 5

5 13 7

10 0

4 33 102 9

5 8

16 4

7 5

9 7

7 11 7

18 26 31 13 0

183 4

0 1

3 0

7 5

4 16 12 9

9 27 20 28 9

0 154 1

0 0

1 3

18 11 2

9 26 18 5

22 35 11 2

0 164 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:

II - 6 TOTAL 19 11 25 29 12 40 25 21 37 54 54 26 72 97 82 36 0

640 0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 2001 STABILITY CLASS -

MODERATELY STABLE (DIFF TEMP 375-33 FT)

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 0.8-3 0

0 0

0 1

0 0

1 0

2 4-7 8-12 13-18 19-24

> 24 2

0 1

1 8

1 5

4 5

9 12 12 6

7 0

0 0

0 2

11 14 8

7 8

0 0

0 TOTAL 11 4

8 0

1 5

10 4

20 24 32 23 26 29 10 14 0

9 22 53 74 61 221 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

II - 7 0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

JANUARY-MARCH 2001 STABILITY CLASS -

EXTREMELY STABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND SPEED (in mph)

WIND DIRECTION 0.8-3 4-7 8-12 13-18 19-24

> 24 TOTAL N

0 0

2 3

4 0

9 NNE 0

0 2

0 0

0 2

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 0

0 0

SE 0

0 0

2 1

0 3

SSE 0

0 0

0 2

S 0

0 0

2 0

7 9

SSW 0

0 0

1 3

5 9

SW 0

0 2

4 2

15 23 WSW 0

0 0

0 2

25 27 W

0 0

0 3

1 2

6 WNW 0

0 0

3 2

1 6

NW 0

0 1

5 4

0 10 NNW 0

0 1

2 8

0 11 VARIABLE 0

0 0

TOTAL 0

0 8

25 29 55 117 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 II - 8

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS EXTREMELY UNSTABLE (DIFF TEMP 375-33 FT)

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 0.8-3 0

0 0

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

> 24 TOTAL 0

0 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

II - 9 0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS MODERATELY UNSTABLE (DIFF TEMP 375-33 FT)

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 0.8-3 0

0 0

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

> 24 TOTAL 5

Hours of calm in this stability class:

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

stability class:

all stability cl II - 10 6

0 asses:

0

LASALLE NUCLEAR POWER*STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS SLIGHTLY UNSTABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE 0.8-3 0

0 0

WIND SPEED (in mph) 4-7 8-12 13-18 19-24

> 24 TOTAL 2

0 0

2 21 1

0 0

0 2

0 5

0 3

0 0

0 3

8 30 3

1 3

0 0

0 6

26 26 58 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:

II-11 TOTAL 0

0 0

0

LASALLE NUCLEAR POWER'STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS - NEUTRAL (DIFF TEMP 375-33 FT)

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 0.8-3 1

1 0

4 1

0 1

1 2

1 0

0 0

0 1

0 0

4-7 22 23 14 2

0 1

10 5

10 13 6

5 4

9 7

10 0

13 141 8-12 13-18 19-24

> 24 TOTAL 22 26 14 11 6

10 8

9 20 11 12 13 11 22 6

18 0

219 6

8 30 54 13 10 13 16 16 14 14 13 15 30 11 4

0 267 2

9 36 46 23 13 3

17 19 25 30 18 13 29 9

4 0

296 5

0 0

2 9

4 1

1 15 39 42 21 16 20 11 7

0 58 67 94 119 52 38 36 49 82 103 104 70 59 110 45 43 0

193 1129 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:

II - 12 0

LASALLE NUCLEAR POWER'STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS -

SLIGHTLY STABLE WINDS MEASURED AT 3 WIND SPEED WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 0.8-3 1

0 2

0 1

0 0

3 0

0 2

0 0

4-7 8-12 7

11 6

3 2

3 4

8 8

3 4

5 5

7 11 6

0 (DIFF TEMP 375-33 FT) 75 FEET (in mph) 13-18 19-24

> 24 TOTAL 9

5 4

14 16 6

4 4

6 7

10 8

8 13 10 8

0 9

36 93 132 2

2 9

9 9

13 6

7 10 12 14 4

7 14 10 2

0 130 0

1 1

4.

8 3

9 11 29 74 28 16 19 15 8

0 0

226 22 19 23 31 38 25 23 31 54 99 60 44 41 53 46 17 0

626 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 11-13

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS -

MODERATELY STABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE 0.8-3 1

0 0

0 1

0 0

0 1

0 0

WIND SPEED (in mph) 4-7 8-12 13-18 4

1 0

0 0

2 4

8 6

15 7

1 4

2 2

4 0

1 2

0 0

1 3

8 10 18 17 8

5 3

3 5

0 0

19-24

> 24 TOTAL 0

0 0

0 1

0 5

5 6

10 12 11 2

6 1

0 0

2 5

6 1

7 22 14 8

3 0

0 0

0 6

3 0

2 4

13 25 25 38 65 42 27 13 12 9

4 0

3 14 60 84 59 68 288 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-14 TOTAL

LASALLE NUCLEAR POWERSTATION PERIOD OF RECORD: APRIL-JUNE 2001 STABILITY CLASS -

EXTREMELY STABLE (DIFF TEMP 375-33 FT)

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 Hours of calm in Hours of missing Hours of missing 0.8-3 0

0 0

1 0

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

> 24 TOTAL 0

0 0

3 0

0 0

2 0

1 0

0 0

2 2

5 0

0 3

1 0

4 0

0 0

0 5

15 15 5

9 15 3

4 6

0 0

10 17 19 30 77 this stability class:

0 wind measurements in this stability class:

0 stability measurements in all stability classes:

0 II-15

LASALLE NUCLEAR POWER STATION PERIOD OF.RECORD:

JULY-SEPTEMBER 2001 STABILITY CLASS EXTREMELY UNSTABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND SPEED (in mph) 4-7 8-12 13-18 19-24

> 24 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:

11-16 TOTAL WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 0.8-3 0

0 0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS -

MODERATELY UNSTABLE (DIFF TEMP 375-33 FT)

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 0.8-3 0

0 0

0 Hours of calm in this stability class:

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

> 24 TOTAL 0

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

II - 17 1

0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS -

SLIGHTLY UNSTABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE 0.8-3 WIND SPEED (in mph) 4-7 8-12 13-18 19-24 0

0 0

1 0

0 0

> 24 TOTAL TOTAL 0

0 10 14 1

2 27 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 II-18

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS NEUTRAL (DIFF TEMP 375-33 FT)

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 0.8-3 2

2 0

1 0

2 2

2 0

2 3

2 2

0 1

0 0

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

> 24 TOTAL 7

14 20 6

8 6

9 14 20 28 16 25 10 8

7 12 0

20 51 19 21 13 19 12 12 25 22 16 25 36 10 14 19 0

9 14 26 39 17 13 2

4 13 10 17 22 9

16 21 10 0

21 1

27 17 4

1 0

6 2

13 10 14 7

17 14 11 0

TOTAL 21 210 334 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 242 165 34 1006 0

stability class:

0 all stability classes:

11-19 67 82 93 86 42 41 27 40 64 79 64 90 66 53 60 52 0

0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS SLIGHTLY STABLE (DIFF TEMP 375-33 FT)

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 0.8-3 1

1 0

2 0

1 3

2 2

2 0

1 0

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

> 24 TOTAL 9

8 10 8

15 1

5 3

4 2

6 12 10 5

15 7

0 5

14 16 31 27 15 8

7 15 11 14 14 9

11 11 8

0 12 1

12 10 10 7

4 6

9 9

13 I1 5

9 6

3 0

6 0

2 0

4 0

3 8

16 11 5

1 0

0 0

38 27 42 58 58 28 24 26 55 42 48 46 30 32 35 19 0

TOTAL 20 70 120 Hours of calm in this stability class:

216 126 56 608 0

Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 11-20

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS MODERATELY STABLE (DIFF TEMP 375-33 FT)

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 Hours of calm in Hours of missing 0.8-3 4-7 8-12 13-18 4

2 1

0 4

5 14 7

8 3

9 10 12 9

11 3

0 7

43 102 this stability class:

5 5

7 3

14 16 6

9 6

9 16 8

18 11 13 4

0 150 19-24

> 24 TOTAL 2

0 0

0 3

11 3

4 10 15 12 6

9 10 5

5 0

14 11 11 6

24 36 28 27 32 37 41 28 51 33 37 16 0

95 35 432 0

wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 II - 21

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 2001 STABILITY CLASS EXTREMELY STABLE (DIFF TEMP 375-33 FT)

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 0.8-3 0

0 0

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

> 24 TOTAL 0

0 0

4 7

17 2

0 0

0 1

0 0

0 2

0 0

1 27 24 29 11 15 11 3

8 3

0 TOTAL 0

Hours of calm in this stabilit 9

17 53 24 31 134 y class:

0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

II - 22 0

0

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

OCTOBER-DECEMBER STABILITY CLASS -

EXTREMELY UNSTABLE (DIFF WINDS MEASURED AT 375 FEET 2001 TEMP 375-33 FT)

WIND SPEED (in mph)

WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 0.8-3 0

0 0

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

> 24 TOTAL 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:

II - 23

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS -

MODERATELY UNSTABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION 0.8-3 WIND SPEED (in mph) 4-7 8-12 13-18 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 19-24

> 24 TOTAL 0

0 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

II - 24 0

1

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

OCTOBER-DECEMBER 2001 STABILITY CLASS -

SLIGHTLY UNSTABLE (DIFF TEMP WINDS MEASURED AT 375 FEET 375-33 FT)

WIND SPEED (in mph)

WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 0.8-3 0

0 0

0 Hours of calm in this stability class:

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

> 24 TOTAL 5

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

I 11-25

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 2001 STABILITY CLASS -

NEUTRAL (DIFF TEMP WINDS MEASURED AT 375 FEET 375-33 FT)

WIND SPEED (in mph)

WIND DIRECTION 0.8-3 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 4-7 8-12 13-18 19-24

> 24 TOTAL 6

7 5

11 2

5 4

1 4

2 1

3 6

4 5

1 0

22 11 8

7 5

0 1

10 8

9 15 18 17 11 9

9 0

6 67 160 22 15 5

9 6

7 5

14 13 15 18 27 34 24 14 17 0

245 3

0 15 8

0 5

3 5

15 12 34 27 50 53 33 4

0 267 1

0 5

1 0

1 7

6 25 55 20 17 37 20 38 9

0 242 54 34 38 38 13 18 21 37 65 93 88 92 144 112 99 41 0

987 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:

II - 26 1

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

OCTOBER-DECEMBER 2001 STABILITY CLASS SLIGHTLY STABLE (DIFF TEMP 375-33 FT)

WINDS MEASURED AT 375 FEET WIND DIRECTION N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL 0.8-3 1

0 1

1 0

0 0

1 0

0 0

1 0

0 0

WIND SPEED (in mph) 4-7 8-12 13-18 19-24

> 24 1

4 10 4

0 1

5 4

0 0

1 4

7 6

0 2

3 4

6 0

2 4

10 6

1 1

3 7

5 6

5 1

3 11 8

1 5

3 3

13 1

10 15 10 48 0

2 10 14 83 1

6 12 11 46 1

5 5

12 9

1 4

7 17 31 2

4 15 38 37 0

4 12 14 11 2

8 9

8 1

0 0

0 5

22 72 133 165 294 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:

11-27 TOTAL 20 10 19 16 23 22 28 26 84 109 76 33 60 96 41 28 0

691 1

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER STABILITY CLASS MODERATELY STABLE (DIFF WINDS MEASURED AT 375 FEET 2001 TEMP 375-33 FT)

WIND SPEED (in mph) 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 0.8-3 0

0 0

1 0

0 0

1 11 29 67 83 124 4

4 4

2 8

6 10 20 22 41 54 57 26 27 20 10 0

315 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:

11-28 0

0 0

0 2

2 3

3 7

7 12 11 11 14 8

3 0

TOTAL 0

0 0

2 1

10 3

24 34 36 9

4 1

0 0

1

LASALLE NUCLEAR POWER STATION PERIOD OF RECORD:

OCTOBER-DECEMBER STABILITY CLASS -

EXTREMELY STABLE (DIFF WINDS MEASURED AT 375 FEET 2001 TEMP 375-33 FT)

WIND SPEED (in mph)

WIND DIRECTION 0.8-3 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW VARIABLE TOTAL Hours of calm in this stability class:

4-7 8-12 13-18 0

0 0

0 2

0 1

5 1

5 8

1 6

6 0

2 7

1 1

4 0

3 4

0 4

0 3

3 0

0 1

0 0

0 19-24 0

0 0

0 6

8 7

6 2

6 1

0 0

> 24 0

0 0

6 10 12 37 24 5

0 3

0 0

3 25 48 36 97 209 0

Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

II - 29 TOTAL 0

0 0

0 2

12 30 33 53 36 14 18 10 1

0 1

LASALLE APPENDIX III 2001 REMP SAMPLE RESULTS III-1

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........................................

111-6 4.0 TLD DATA...............................................................

111-35 5.0 GRAPHS OF DATA TRENDS...............................................

111-39 111-2

LASALLE LIST OF TABLES No.

Title 1

Airborne Particulates and Iodine-131........................................

111-7 2

Airborne Particulates, Quarterly Composites.................................

111-12 3

M ilk.....................................................................

111-15 4

Fish, Edible Portions......................................................

111-18 5

Bottom Sedim ents.........................................................

111-21 6

V egetables...............................................................

111-22 7

Surface W ater............................................................

111-25 8

W ell W ater..............................................................

111-30 12 Milch Animals, Nearest Residence, and Nearest Livestock Census..............

111-31 111-3

LASALLE

1.0 INTRODUCTION

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

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

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

For all gamma isotopic analyses, spectrum is computer scanned from 80 to 2048 keV. Specifically included are Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr/Nb-95, 1-131, Ba/La-140, Cs-134 and Cs-137.

Naturally occurring gamma-emitters, such as K-40 and Ra daughters, are frequently detected but not listed here. The data is reported in the format of x+/-2s;2TPU, where 'x" is the significant result, "s" is the one standard deviation counting uncertainty, and TPU is the total propagated uncertainty at the one sigma confidence level.

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

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

TLD data is provided by Exelon Generation Company.

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

Unusual Environmental Measurements Sample Type Location Collection Comments Code Date None for 2001.

111-4

2.0 LISTING OF MISSED SAMPLES yLocation Expected Sample Type Code Collection Reason Date L-210-2 06-28-01 TLD L-210-2 found missing during quarterly exchange; placed new 3rd quarter TLD.

111-5 TLD

LASALLE 3.0 LISTING OF SAMPLE ANOMALIES Sample Type Location Collection Reason Code Date WW L-27 01-11-01 No sample; collector will check again during next collection.

Update: Sample obtained on 01-18-01. Collector met with station representative who designated a permanent location for well in renovated pump house.

TLD Other 03-29-01 No replacement for L-216-4; omitted from packing list.

Collector placed Spare #2011135.

GASKET LaSalle 04-12-01 Gasket exchange delayed for one week; new receiving personnel at Environmental, Inc. did not place gaskets in collector's supply-pickup container. Station notified.

TLD Other 10-04-01 Collector received no TLDs for exchange for locations L-216-3 and L-216-4; placed Spare L-2016513 at 216-3 and Spare L-2016514 at 216-4.

GASKET LaSalle 10-11-01 Collector notified Program Coordinator that gaskets did not fit charcoal holders; Program Coordinator issued new gaskets; collector exchanged 10-18-01.

NOTE: Problem believed due to collector soaking gaskets in mineral solvent. Program coordinator soaked gaskets in gasoline at laboratory; gaskets expanded.

A L-03 12-13-01 Low meter reading of 158.1 hrs. possible due to work on powerlines around LaSalle Station.

1mI-6

LASALLE Table

1.

Airborne Particulates and Iodine Cartridges Collection:

Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLD:

Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units:

10.2 pCi/m 3 L-01 Nearsite No. 1 Date Volume Gross Date Volume Gross Collected (M3)

Beta 1-131 a Collected (m3)

Beta 1-131 a 01-04-01 278 3.1 +/-_0.4; 0.7

-0.4+/-t0.5;0.5 01-11-01 283 2.8 +/-_0.4; 0.7 01-18-01 289 2.5 +/-_0.3;0.6

-0.2+/-_0.5;0.5 01-25-01 282 4.1 +/- 0.4; 0.8 02-01-01 287 3.6 +/- 0.4; 0.8 0.6 +/- 0.4;0.4 02-08-01 283 2.9 +/- 0.4; 0.6 02-15-01 285 1.9 +/- 0.4; 0.5 1.0 +/- 0.4;0.5 02-22-01 283 3.3 +/- 0.4; 0.7 03-01-01 285 3.2 +/- 0.4; 0.6

-0.6 +/- 0.4;0.4 03-08-01 282 3.3 +/- 0.4; 0.7 03-15-01 285 1.8 +/- 0.3; 0.5 0.3 +/- 0.4;0.4 03-22-01 282 1.8 +/- 0.3; 0.4 03-29-01 290 1.8 +/- 0.4; 0.5

-0.5 +/- 0.5;0.6 1st Qtr. Mean+/-s.d.

2.8 +/-0.8 0.0+/- 0.6 04-05-01 282 1.3 +/- 0.3; 0.3 04-12-01 288 0.6 +/--0.2;0.2 0.2+/-0.3;0.3 04-19-01 282 1.9 +/--0.4;0.5 04-26-01 283 1.9 +/- 0.4; 0.5

-0.1 + 0.4;0.4 05-03-01 287 2.7 +/- 0.3; 0.6 05-10-01 285 2.1 +/--0.4;0.5 0.1-+/-0.4;0.4 05-17-01 287 2.6 +/- 0.4; 0.6 05-24-01 282 1.5 +/-_0.3;0.4

-0.5_+/-0.5;0.5 05-31-01 285 1.2 +/- 0.3; 0.4 06-07-01 287 1.0 +/- 0.3; 0.3 0.3 +/- 0.4;0.4 06-14-01 284 2.7 +/-_0.3; 0.6 06-21-01 288 2.7 +/-_0.4;0.6 0.3 +/-0.4;0.4 06-28-01 289 2.4 +/- 0.4; 0.6 2nd Qtr. Mean+/-s.d.

1.9 +/-0.7 0.1+/- 0.3 07-05-01 283 2.6 +/- 0.4; 0.6

-0.7 +/- 0.4; 0.4 07-12-01 285 2.3 +/- 0.4; 0.6 07-19-01 284 2.8 +/-_0.4;0.6 0.9.t0.5;0.5 07-26-01 284 2.8 +/- 0.4; 0.6 08-02-01 287 3.1 +/--0.4;0.7

-0.0-+/-0.5;0.5 08-09-01 286 3.5 +/- 0.4; 0.7 08-16-01 287 2.1 +/--0.3;0.5

-0.5_+/-0.5;0.5 08-23-01 279 1.9 +/- 0.4; 0.5 08-30-01 288 3.2 +/- 0.3; 0.7 0.3 +/- 0.4; 0.4 09-06-01 288 2.5 +/- 0.3; 0.6 09-13-01 285 2.8 +/-0.4;0.6

-0.6_+/-0.5;0.5 09-20-01 286 3.0 +/- 0.4; 0.7 09-27-01 282 2.8 +/-0.4;0.6 0.5 +/-0.5;0.5 3rd Qtr. Mean+/-s.d.

2.7 +/-0.4

-0.0+/- 0.6 10-04-01 295 3.2 +/- 0.4; 0.7 10-11-01 283 2.9 +/- 0.4; 0.6 0.3 +/- 0.4;0.4 10-18-01 282 2.2 +/-_0.3;0.5 10-25-01 285 3.3 +/- 0.4; 0.7

-0.1 +/- 0.4;0.4 11-01-01 290 2.4 +/- 0.3; 0.5 11-08-01 283 3.2 +/-0.4; 0.7

-0.4_+/-0.4;0.4 11-15-01 289 3.7 +/-_0.4; 0.8 11-23-01 318 5.3 +/- 0.5; 1.1

-0.2_+/-0.4;0.4 11-29-01 244 2.6 +/-_0.4;0.6 12-06-01 290 3.9 +/- 0.4; 0.8 0.8 +/- 0.5;0.5 12-13-01 280 3.6 +/- 0.4; 0.8 12-20-01 288 3.2 +/- 0.4; 0.7

-0.1 +/- 0.3; 0.3 12-26-01 249 3.7 +/-_0.5;0.8 4th Qtr. Mean+/-s.d.

3.3 +/-0.8 0.0+/- 0.4 a Volume based on two week collection period.

II -7

LASALLE Table

1.

Airborne Particulates and Iodine Cartridges Collection:

Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLD:

Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units:

10.2 pCi/m3 L-03 Onsite No. 3 Date Volume Gross Date Volume Gross Collected (M3)

Beta 1-131 a Collected (m3)

Beta 1-131 a 01-04-01 285 3.0_+/-0.4;0.7

-0.4_+/-0.5;0.5 01-11-01 283 2.7 +/- 0.4; 0.7 01-18-01 290 2.6_+/-0.3;0.6

-0.6_+/-0.5;0.5 01-25-01 282 3.6 +/- 0.4; 0.8 02-01-01 285 1.9 +/- 0.4; 0.5 0.4 +/- 0.4;0.5 02-08-01 273 3.0 +/- 0.4; 0.7 02-15-01 285 2.4 +/-_0.4;0.6 0.5+/-_0.5;0.5 02-22-01 283 3.9 +/- 0.4; 0.8 03-01-01 294 3.0 +/- 0.4; 0.6

-0.7 +/- 0.4; 0.4 03-08-01 282 2.3 +/- 0.4; 0.6 03-15-01 285 1.8 +/-+0.3;0.5

-0.8_+0.4;0.4 03-22-01 282 1.8 +/- 0.3; 0.5 03-29-01 290 2.2 +/- 0.4; 0.5

-0.4- +/-0.4;0.4 1st Qtr. Mean+/-s.d.

2.6 +/-0.7

-0.3+/- 0.5 04-05-01 04-12-01 04-19-01 04-26-01 282 2.3 +/- 0.3; 0.5 288 1.9 +/- 0.3; 0.5

-0.3 +/- 0.4;0.4 282 2.0 +/- 0.4; 0.5 279 2.1 +/-_0.4; 0.5

-0.1_+/-0.4;0.4 05-03-01 287 2.8 +/- 0.3; 0.6 05-10-01 285 2.1 +/-_0.4;0.5 0.3+/-_0.5;0.5 05-17-01 286 2.7 +/- 0.4; 0.6 05-24-01 282 1.6 +/- 0.3; 0.4

-0.4 +/- 0.5; 0.5 05-31-01 285 1.3 +/- 0.3; 0.4 06-07-01 287 0.9 +/-_0.3;0.3

-0.2_+/-0.5;0.5 06-14-01 283 3.1 +/-_0.4;0.7 06-21-01 287 2.4 +/- 0.4; 0.6

-0.1 +/- 0.5;0.5 06-28-01 290 2.3 +/- 0.4; 0.6 2nd Qtr. Mean+/-s.d.

2.1 +/-0.6

-0.1+/- 0.2 07-05-01 283 2.3 +/- 0.4; 0.5 0.1 +/- 0.4;0.4 07-12-01 285 2.4 +/- 0.4; 0.6 07-19-01 284 2.9 +/-_0.4; 0.6

-0.5_+/-0.5;0.5 07-26-01 284 3.2 +/- 0.4; 0.7 08-02-01 287 3.5 +/-_0.4;0.7 0.8-+/-0.5;0.5 08-09-01 286 3.8 +/- 0.4; 0.8 08-16-01 287 2.6 +/- 0.3; 0.6 0.2 +/- 0.5; 0.5 08-23-01 280 1.6 +/- 0.4; 0.5 08-30-01 288 3.4 +/- 0.4; 0.7

-0.9 +/- 0.5;0.5 09-06-01 288 2.4 +/- 0.3; 0.5 09-13-01 280 2.7 +/- 0.4; 0.6

-0.1 +/- 0.5;0.5 09-20-01 286 2.5 +/- 0.4; 0.6 09-27-01 282 2.6 +/- 0.4; 0.6 0.1 +/- 0.5 ;0.5 3rd Qtr. Mean+/-s.d.

2.8 +/-0.6

-0.0+/- 0.5 10-04-01 295 2.9 +/- 0.4; 0.7 10-11-01 283 2.9 +/- 0.4; 0.6

-0.0 +/- 0.4;0.4 10-18-01 282 2.4 +/- 0.3; 0.5 10-25-01 290 3.2 +/- 0.4; 0.7 0.5 +/- 0.4; 0.4 11101-01 290 1.8 +/-_0.3;0.4 11-08-01 283 1.6 +/- 0.3; 0.4 0.0+/- 0.5;0.5 11-15-01 289 3.7 +/-_0.4; 0.8 11-23-01 318 4.8 +/-_0.4; 1.0 0.1 +/-_0.5;0.5 11-29-01 244 3.2 +/-.0.4;0.7 12-06-01 290 3.9 +/--0.4;0.8

-0.3-+/-0.5;0.5 12-13-01 268b 3.9 +/- 0.5; 0.8 12-20-01 288 2.9 +/-_0.4;0.7 0.8_+/-0.4;0.4 12-26-01 248 3.1 +/- 0.5; 0.7 4th Qtr. Mean+/-s.d.

3.1 +/-0.9 0.2+/- 0.4 111-8 a Volume based on two week collection period.

b Volume low; timer reading of 158.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> possible due to work on powerlines in area.

LASALLE Table

1.

Airborne Particulates and Iodine Cartridges Collection:

Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLD:

Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units:

10-2 pCi/m 3 L-05 Onsite Station No. 5 Date Volume Gross Date Volume Gross Collected (m3)

Beta I-131 a Collected (M3)

Beta 1-131 a 01-04-01 279 3.7 +/-_0.5;0.8

-0.4+/-0.5;0.5 01-11-01 282 2.7 +/-.0.4;0.8 01-18-01 288 3.1 +/-_0.4; 0.7

-0.1_+/-0.5;0.5 01-25-01 285 3.3 +/- 0.4; 0.7 02-01-01 285 2.4_+/-0.4;0.6 0.0_+/-0.4;0.4 02-08-01 283 3.0 +/- 0.4; 0.7 02-15-01 285 2.7 +/-_0.4; 0.6 0.4_+/-0.5;0.5 02-22-01 283 3.2 +/- 0.4; 0.7 03-01-01 290 3.3 +/- 0.4; 0.7

-0.4 + 0.4;0.4 03-08-01 282 2.7 +/- 0.4; 0.6 03-15-01 285 1.8 +/-_0.3; 0.5

-0.1 +/-_0.4;0.4 03-22-01 282 2.0 +/- 0.3; 0.5 03-29-01 290 1.9 +/- 0.4; 0.5

-0.4 +/- 0.5 ;0.5 1st Qtr. Mean+/-s.d.

2.8 +/-0.6

-0.1+/- 0.3 04-05-01 282 2.2 +/- 0.3; 0.5 04-12-01 283 2.1 +/--0.3;0.5

-0.1 +/--0.4;0.4 04-19-01 282 2.2 +/- 0.4; 0.5 04-26-01 283 2.0 +/- 0.4; 0.5

-0.3 + 0.4;0.4 05-03-01 287 2.8 +/- 0.3; 0.6 05-10-01 286 2.3 +/-_0.4; 0.6 0.2_+/-0.4;0.4 05-17-01 287 2.7 +/- 0.4; 0.6 05-24-01 282 1.6 +/- 0.3; 0.4

-0.5 +/- 0.5 ;0.5 05-31-01 285 1.3 +/-_0.3;0.4 06-07-01 287 0.8 +/-_0.3;0.3 0.0_+/-0.4;0.4 06-14-01 283 3.1 +/-_0.4; 0.7 06-21-01 280 2.5 +/-_0.4; 0.6 0.0_+/-0.5;0.5 06-28-01 287 2.6 +/- 0.4; 0.6 2nd Qtr. Mean+/-s.d.

2.2 +/-0.6

-0.1+/- 0.2 07-05-01 279 2.3 +/-_0.4; 0.6

-0.0_+/-0.6;0.6 07-12-01 283 2.3 +/--0.4;0.6 07-19-01 286 2.6 +/- 0.4; 0.6

-0.6 +/- 0.6; 0.6 07-26-01 279 2.6 +/- 0.4; 0.6 08-02-01 282 3.6_+/-0.4;0.8 0.3_+/-0.5;0.5 08-09-01 281 4.0_+/-0.4;0.8 08-16-01 287 2.6 +/- 0.3; 0.6

-0.4 +/- 0.5; 0.5 08-23-01 280 1.9 +/- 0.4; 0.5 08-30-01 287 3.5 +/- 0.4; 0.7

-0.0 +/- 0.4; 0.4 09-06-01 289 2.3 +/- 0.3; 0.5 09-13-01 280 2.3 +/- 0.4; 0.6

-0.1 +/- 0.5; 0.5 09-20-01 275 2.9 +/- 0.4; 0.7 09-27-01 283 2.6_+/-0.4;0.6

-0.8_+/-0.5;0.6 3rd Qtr. Mean+/-s.d.

2.7 +/-0.6

-0.2+/- 0.4 10-04-01 295 2.8 +/-_0.4;0.6 10-11-01 281 3.0 +/- 0.4; 0.7

-0.2 +/- 0.4;0.4 10-18-01 283 1.9 +/-_0.3;0.5 10-25-01 285 3.1 +/-_0.4;0.7 0.2_+/-_0.5;0.5 11-01-01 287 2.3 +/- 0.3; 0.5 11-08-01 286 2.5 +/-_0.3;0.5

-0.5 +/-0.5;0.5 11-15-01 294 3.9 +/-_0.4;0.8 11-23-01 318 4.4 +/- 0.4; 0.9

-0.4+/- 0.5;0.5 11-29-01 244 2.5 +/- 0.4; 0.6 12-06-01 290 3.8 +/-0.4; 0.8 0.4_+/-0.5;0.5 12-13-01 276 3.6 +/- 0.4; 0.8 12-20-01 287 2.7 +/-_0.4; 0.6 0.2_+/-0.4;0.4 12-26-01 248 3.8 +/- 0.5; 0.8 4th Qtr. Mean+/-s.d.

3.1 +/-0.7

-0.1+/- 0.4 a Volume based on two week collection period.

MlI-9

LASALLE Table

1.

Airborne Particulates and Iodine Cartridges Collection:

Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLD:

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

10.2 pCi/m 3 L-06 Nearsite No. 6 Date Volume Gross Date Volume Gross Collected (n 3)

Beta 1-131 a Collected (m3)

Beta 1-131 a 3.2 +/- 0.4; 0.7 2.7 +/- 0.4; 0.7 3.0 +/- 0.4; 0.7 4.1 +/-_0.4;0.8 2.9 +/- 0.4; 0.7 2.8 +/--0.4;0.6 2.1 +/-_0.4; 0.5 3.5 +/- 0.4; 0.7 3.0 +/- 0.4; 0.6 2.2 +/- 0.4; 0.5 1.7 _+/-

0.3; 0.5 1.8 +/- 0.3; 0.5 1.9 +/- 0.4; 0.5 0.3 +/- 0.4;0.4 0.0 +/- 0.4; 0.4 0.3 +/- 0.5; 0.5 0.3 +/- 0.5; 0.5 0.3 +/- 0.4;0.4

-0.2 + 0.5; 0.5

-0.1+/- 0.4; 0.4 07-05-01 07-12-01 07-19-01 07-26-01 08-02-01 08-09-01 08-16-01 08-23-01 08-30-01 09-06-01 09-13-01 09-20-01 09-27-01 283 285 284 284 287 286 287 279 288 288 285 286 283 2.3 t 0.4; 0.6 2.2 +/- 0.4; 0.5 2.9 +/- 0.4; 0.7 3.2 +/- 0.4; 0.7 3.6 +/- 0.4; 0.8 3.9 +/-_0.4;0.8 2.1 +/-_0.3;0.5 1.6 +/- 0.4; 0.5 3.4 +/- 0.4; 0.7 2.5 +/- 0.3; 0.6 2.5 +/- 0.4; 0.6 2.9 +/- 0.4; 0.7 2.8 +/- 0.4; 0.6 0.2+/- 0.4;0.4

-0.7 +/- 0.5; 0.5

-0.5 +/- 0.4; 0.4 1.1 +/- 0.4;0.5 0.4 +/- 0.4; 0.4 0.0 +/- 0.5; 0.5 0.4 +/- 0.5; 0.5 1st Qtr. Mean+/-s.d.

2.7 +/-0.7 0.1+/- 0.2 3rd Qtr. Means.d.

2.5 +/-0.3;0.6 1.4 +/- 0.3; 0.4 2.0 +/- 0.4; 0.5 2.3 + 0.4; 0.6 3.2 +/- 0.4; 0.7 2.1 +/-0.4; 0.5 2.5 +/- 0.4; 0.6 1.7 +/-0.3;0.5 1.0 +/-0.3;0.4 1.0 +/-0.3;0.3 3.0 +/-0.4;0.6 2.4 +/- 0.4; 0.6 2.6 +/- 0.4; 0.6 0.2 +/- 0.4; 0.4 0.4+/-0.5;0.5

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

-0.5 +/- 0.4;0.4 10-04-01 10-11-01 10-18-01 10-25-01 11:01-01 11-08-01 11-15-01 11-23-01 11-29-01 12-06-01 12-13-01 12-20-01 12-26-01 295 283 282 285 290 283 294 318 244 290 280 288 249 3.2 +/- 0.4; 0.7 3.0 +/- 0.4; 0.7 2.5 +/- 0.3; 0.6 3.2 +/- 0.4; 0.7 2.5 +/- 0.3; 0.6 2.7 +/- 0.3; 0.6 3.7 +/- 0.4; 0.8 4.2 +/-0.4;0.9 2.5 +/-0.4;0.6 3.5 +/-0.4;0.7 3.4 +/-0.4;0.7 3.2 +/- 0.4; 0.7 4.7 +/- 0.5; 1.0 0.1 +/- 0.4;0.4

-0.0+/- 0.5;0.5

-0.3 +/- 0.5;0.5

-0.3 +/- 0.4; 0.4

-0.5 +/- 0.5; 0.5

-0.3 +/- 0.4; 0.4 2nd Qtr. Mean+/-s.d.

2.1 +/-0.7 0.0+/- 0.3 4th Qtr. Mean+/-s.d.

3.3 +/-0.7 a Volume based on two week collection period.

III - 10 01-04-01 01-11-01 01-18-01 01-25-01 02-01-01 02-08-01 02-15-01 02-22-01 03-01-01 03-08-01 03-15-01 03-22-01 03-29-01 282 283 290 282 287 278 285 283 289 282 280 287 290 2.8 +/-0.7 0.1+/- 0.6 04-05-01 04-12-01 04-19-01 04-26-01 05-03-01 05-10-01 05-17-01 05-24-01 05-31-01 06-07-01 06-14-01 06-21-01 06-28-01 286 283 282 283 287 285 287 282 285 287 283 287 285

-0.2+/- 0.2

LASALLE Table

1.

Airborne Particulates and Iodine Cartridges Collection:

Air Particulates - Continuous; weekly exchange Iodine Cartridges - Continuous; biweekly exchange Required LLD:

Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units:

10"2 pCi/m3 L-10 (C) Streator Date Volume Gross Date Volume Gross Collected (m3)

Beta I-131 a Collected (M3)

Beta I-131a 01-04-01 283 3.8 +/-_0.5;0.8

-0.7_+/-0.4;0.4 01-11-01 282 2.3 +/-_0.4; 0.8 01-18-01 288 3.1 +/--0.4;0.7 0.3-+/-0.5;0.5 01-25-01 294 4.6 +/- 0.4; 0.9 02-01-01 291 2.7 +/- 0.4; 0.6 0.2+0.4;0.4 02-08-01 283 3.1 +/--0.4;0.7 02-15-01 285 2.8 +/--0.4;0.6 0.0_+/-0.4;0.4 02-22-01 283 3.6 +/- 0.4; 0.7 03-01-01 287 3.4_+/-_0.4;0.7 0.4_+/-0.5;0.5 03-08-01 289 2.6 +/- 0.4; 0.6 03-15-01 285 1.8 +/--0.3;0.5

-0.2_+0.5;0.5 03-22-01 282 1.7 +/- 0.3; 0.4 03-29-01 290 2.3 +/-_0.4;0.6

-0.0_+/-0.5;0.5 1st Qtr. Mean+/-s.d.

2.9 +/-0.8 0.0+/- 0.4 04-05-01 282 2.9 +/- 0.3; 0.6 04-12-01 287 1.7 +/- 0.3; 0.4 0.3 +/- 0.4; 0.4 04-19-01 283 2.1 +/-_0.4;0.5 04-26-01 279 2.1 +/-_0.4;0.5

-0.4_+0.5;0.5 05-03-01 291 3.0 +/- 0.3; 0.6 05-10-01 286 2.1 +/-_0.4;0.5

-0.5_+/-0.5;0.5 05-17-01 282 2.5 +/- 0.4; 0.6 05-24-01 282 1.6 +/- 0.3; 0.4

-0.1 +/- 0.5; 0.5 05-31-01 280 1.4 +/- 0.3; 0.4 06-07-01 287 0.8 +/- 0.3; 0.3 0.6+/- 0.4;0.4 06-14-01 283 3.1 +/-_0.4;0.7 06-21-01 285 2.5 +/--0.4;0.6 0.4-+/-0.4;0.4 06-28-01 287 2.7 +/- 0.4; 0.6 2nd Qtr. Mean+/-s.d.

2.2 +/-0.7 0.0+/- 0.5 07-05-01 283 2.2 +/-_0.4;0.5

-0.4_+/-0.5;0.5 07-12-01 284 2.3 +/- 0.4; 0.6 07-19-01 286 2.8 +/-_0.4;0.6

-0.6_+/-0.6;0.6 07-26-01 283 3.4 +/- 0.4; 0.7 08-02-01 287 3.9 +/- 0.4; 0.8

-0.1 +/- 0.5;0.5 08-09-01 286 3.8 +/- 0.4; 0.8 08-16-01 287 2.4-+/-0.3;0.5

-0.0+/-_0.5;0.5 08-23-01 285 1.8 +/- 0.4; 0.5 08-30-01 287 3.7 +/-_0.4; 0.8 0.3_+/-0.5;0.5 09-06-01 287 2.6 +/- 0.3; 0.6 09-13-01 283 2.8 +/--0.4;0.6 0.1-+/-0.5;0.5 09-20-01 285 3.1 +/- 0.4; 0.7 09-27-01 283 2.7 +/- 0.4; 0.6 0.2 +/- 0.4;0.4 3rd Qtr. Mean+/-s.d.

2.9 +/-0.7

-0.1+/- 0.3 10-04-01 10-11-01 10-18-01 10-25-01 11-01-01 11-08-01 11-15-01 11-23-01 11-29-01 12-06-01 286 3.2 -+0.4;0.7 284 2.9 +/--0.4;0.7

-0.9_0.5;0.5 285 2.6 +/- 0.3; 0.6 285 3.2 +/-0.4;0.7 0.2-0.5;0.5 287 2.5 +/- 0.3; 0.6 286 2.5 +/-_0.3;0.6 0.1_0.4;0.4 294 3.7+/-0.4;0.8 318 4.2-+/-0.4;0.9

-0.1-0.4;0.4 248 2.5 +/--0.4; 0.6 287 4.2-+/-0.4;0.8

-0.5_0.5;0.5 12-13-01 283 3.8 +/--0.4; 0.8 12-20-01 285 3.0 +/- 0.4; 0.7

-0.2 +/- 0.3; 0.3 12-26-01 250 1.4 +/- 0.4; 0.4 4th Qtr. Mean+/-s.d.

3.0 +/-0.8

-0.2+/- 0.4 a Volume based on two week collection period.

Ill -11

LASALLE Airborne Particulates Collection:

Quarterly composites of weekly collections ODCM Required LLDs:

Cs-134 = 0.01, Cs-137 = 0.01 pCi/m 3 Other LLDs:

Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCi/m3 104 pCi/m 3 Sample Description and Concentration L-0lI Nearsite No. 1 1st Qtr.

2nd Qtr.

3rd Qtr.

4th Qtr.

LAP-3216 3,699

-2.7-+/- 7.8; 7.9

-6.9 +/- 19.0; 19.0

-3.9 +/- 5.8; 5.8

-3.6 +/- 5.3; 5.3

-2.0_+/- 10.9; 10.9

-1.0-+/- 5.3; 5.3 9.0 +/- 5.2; 5.4

-3.3_+/- 6.1; 6.1

-81.9+/-+ 9.5; 17.4 LAP-6628,9 3,715

-0.8 +/- 4.3; 4.3

-2.0_+/- 9.1; 9.2 3.2 +/- 2.6; 2.7 4.6 +/- 4.8; 4.9

-5.5 +/- 9.8; 9.8

-1.0_+/- 3.9; 3.9

-1.1 +/- 5.0; 5.0

-0.1 +/- 3.9; 3.9

-6.7+/- 5.6; 5.7 LAP-9922 3,711

-1.5+/- 7.4; 7.4 3.0+/- 10.1; 10.1

-4.2 +/- 6.9; 7.0 6.2+/- 11.4; 11.5

-3.0+/- 13.2; 13.2

-13.1+/- 12.4; 12.7 6.9-+/- 7.2; 7.3

-6.4 +/- 7.7; 7.8

-54.1 +/- 7.7; 12.3 LAP-11973,4 3,682 4.0-+/- 5.1; 5.1 20.9 +/- 7.9; 8.7 4.0_+/- 4.2; 4.3 1.7_+/- 4.7; 4.7 5.7+_ 12.8; 12.8 0.4 +/- 5.9; 5.9

-1.6-+/- 5.2; 5.2

-0.4 +/- 5.3; 5.3 20.0 +/- 8.1 ; 8.9 L-03 Onsite No. 3 2001 Collection Period Lab Code Volume 3rd Qtr.

LAP-9923 3,706 4th Qtr.

LAP-11975 3,674 5.7 +/- 4.9; 5.0

-16.7_+/- 13.2; 13.6 1.2 +/- 6.5; 6.5 2.4 +/- 8.5; 8.5 7.1 +/- 10.5; 10.6

-8.0 +/- 7.5; 7.6

-0.5 +/- 6.4; 6.4

-1.9_+/- 5.8; 5.8 23.1 +/- 7.7; 8.7

-8.3 +/- 6.0; 6.2 15.5-+/- 10.2; 10.6 2.4 +/- 5.4; 5.4 4.4 +/- 4.3; 4.4 2.0-+/- 11.4; 11.4

-1.1 +/- 5.9; 5.9

-4.3 +/- 8.4; 8.5 4.9 +/- 6.5; 6.6

-43.3_+/- 10.2; 12.8 3.8++/- 5.4; 5.4

-1.5_+/- 12.2; 12.2

-3.7 +/- 5.0; 5.1 2.4_+/- 6.1; 6.1

-7.1+/- 12.1; 12.2

-1.5+/- 11.5; 11.5

-0.1 +/- 8.6; 8.6 0.2 5.6; 5.6

-41.8+/- 8.2; 11.1 3.0+/- 7.1; 7.1 6.2_+ 14.2; 14.2 4.7 +/- 4.5; 4.6 1.5 +/- 0.0; 0.3

-22.2_+/- 15.4; 15.9

-7.5 +/- 7.4; 7.5 4.2-+/- 8.1; 8.2

-3.3_+/- 7.4; 7.4

-12.2+/- 10.1; 10.3 111 -12 Table 2.

Units:

2001 Collection Period Lab Code Volume Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 1st Qtr.

LAP-3217 3,705 2nd Qtr.

LAP-6630 3,709 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140

LASALLE Table

2.

Airborne Particulates Collection:

Quarterly composites of weekly collections ODCM Required LLDs:

Cs-134 = 0.01, Cs-137 = 0.01 pCi/m 3 Other LLDs:

Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 0.01; Ba/La-140 = 0.025 pCi/m3 Units:

10-4 pCi/m3 Sample Description and Concentration L-05 Onsite Station No. 5 2001 Collection Period Lab Code Volume 1st Qtr.

LAP-3218,9 3,706 2nd Qtr.

LAP-6631 3,700 3rd Qtr.

LAP-9924 3,678 4th Qtr.

LAP-11976 3,680

-2.5 +/- 4.7; 4.7

-12.6_+/- 12.8; 13.0

-2.2_+/- 4.1; 4.1 5.8_+/- 6.3; 6.4 6.5_+/- 7.9; 8.0

-19.7_+/- 5.8; 6.8 1.5 +/- 5.5; 5.5 3.9_+/- 4.4; 4.5

-25.4 +/- 5.8; 7.4 0.8_+/- 6.4; 6.4 4.2_+/- 8.1; 8.2

-8.8 +/- 5.5; 5.8

-9.2+/- 8.1; 8.3 2.0_+/- 12.0; 12.0

-2.6_+/- 6.3; 6.3

-8.2+/- 7.0; 7.2

-4.2+/- 7.1; 7.1 29.0_+/- 4.6; 6.9

-3.1 +/- 5.6; 5.7

-1.5_+/- 6.9; 6.9 2.7_+/- 4.6; 4.7 0.4 +/- 7.5; 7.5 6.1+/- 13.1; 13.1

-20.6_+/- 14.0; 14.5 3.8 +/- 5.7; 5.8 1.3+/- 7.1; 7.1

-14.8-+/- 6.2; 6.7 0.9+/-t 7.3; 7.3 8.1 +/- 12.4; 12.5 0.9-+/- 6.0; 6.0

-8.3 +/- 9.2; 9.3

-18.4+/- 19.0; 19.3

-6.7 + 6.3; 6.4

-8.1 +/- 9.0; 9.1

-3.8_+/- 7.8; 7.8

-4.8_+/- 9.0; 9.0 L-06 Nearsite No. 6 2nd Qtr.

LAP-6632 3,710 4.2 +/- 6.3; 6.3 41.9-+/- 18.6; 20.0

-5.1 +/- 6.2; 6.3

-0.7 +/- 6.3; 6.3

-12.2-+/- 17.6; 17.7 12.4_+/- 5.9; 6.3

-7.5 +/- 7.2; 7.3 4.9 +/- 6.5; 6.6

-4.2 +/- 9.5; 9.5 6.1 +/- 5.9; 6.0

-26.7+/- 16.1; 16.8 0.2 +/- 6.4; 6.4 1.3 +/- 5.7; 5.7 3.0_+/- 9.1; 9.2

-6.8 +/- 6.5; 6.6 0.4 +/- 5.7; 5.7

-0.8_+/- 7.1; 7.1

-62.8-+/- 9.5; 14.7 5.0 +/- 6.4; 6.5 18.2_+/- 7.7; 8.3 10.0+/- 5.1; 5.4 2.6+/- 8.0; 8.0 1.0 +/- 14.2; 14.2

-1.5_+/- 11.4; 11.4

-1.5-+/- 6.9; 6.9 4.2-+/- 6.4; 6.4

-14.7_+/- 6.1; 6.6

-4.3.t 7.9; 7.9

-8.9_+/- 13.2; 13.3

-12.6_+/- 8.4; 8.7 4.4_+/- 8.4; 8.5

-28.9 + 22.1 ; 22.7 2.4_+/- 5.8; 5.9

-4.1 + 7.1; 7.1

-3.3 +/- 8.5; 8.5

-83.1-+/- 10.1; 17.9 111 -13 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 2001 Collection Period Lab Code Volume 1st Qtr.

LAP-3220 3,704 3rd Qtr.

LAP-9925 3,713 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 4th Qtr.

LAP-11977 3,687

LASALLE Table

2.

Airborne Particulates Collection:

Quarterly composites of weekly collections ODCM Required LLDs:

Cs-134 = 0.01, Cs-137 = 0.01 pCi/m3 Other LLDs:

Mn-54 = 0.01; Fe-59 = 0.015; Co-58, Co-60 = 0.01; Zn-65 = 0.04; Zr/Nb-95 = 0.01; Ba/La-140 = 0.025 pCi/m 3 Units:

10.4 pCi/mr3 Sample Description and Concentration L-10 (C) Streator 2001 Collection Period Lab Code Volume 1st Qtr.

LAP-3221 3,730 2nd Qtr.

LAP-6633 3,700 3rd Qtr.

LAP-9926 3,712 4th Qtr.

LAP-11978 3,685 0.8 +/- 6.4; 6.4

-15.9 +/- 17.4; 17.6 2.7 +/- 4.6; 4.6 3.1 +/- 5.6; 5.7 11.1++/- 11.5; 11.6 4.6 +/- 6.4; 6.4

-10.2 +/- 8.5; 8.7

-0.1 +/- 7.2; 7.2 75.8 +/- 6.4; 14.9 0.6 +/- 5.3; 5.3

-1.7 +/- 8.9; 8.9

-2.3 +/- 5.4; 5.4

-4.3 +/- 6.7; 6.7 3.3 +/- 9.7; 9.7

-6.7 +/- 4.9; 5.1

-6.3 +/- 6.2; 6.3 1.3+/- 5.0; 5.0

-1.2 +/- 7.1; 7.1

-1.9 +/- 4.9; 4.9

-6.1 +/- 9.0; 9.1

-0.5 +/- 4.8; 4.8 0.5 +/- 9.0; 9.0

-2.0 +/- 10.8; 10.8

-12.4 +/- 9.5; 9.8 6.4_+/- 5.4; 5.5 1.4+/- 6.5; 6.5

-121.9_+/- 10.4; 24.1 4.9 +/- 5.9; 5.9

-1.3 +/- 16.1; 16.1

-5.2 +/- 6.4; 6.5

-2.3 +/- 10.0; 10.0 19.3+_ 15.5; 15.8 8.2+_ 7.2; 7.3

-4.1 +/- 7.3; 7.4

-0.8++/- 6.7; 6.7

-3.0 +/- 7.7; 7.8 11I -14 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140

Table 3

Milk Collection:

ODCM Required LLDs:

Other LLDs:

Units:

LASALLE Biweekly (May - October)

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

Cs-134 = 15, Cs-137 = 18, Ba/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 01-04-01 LMI-23 02-01-01 LMI-742 03-01-01 LMI-1449 04-05-01 LMI-2513

-0.22 +/- 0.19; 0.19 1.4++/- 2.0; 2.0

-3.6 +/- 4.7; 4.7

-0.1-+/- 1.9; 1.9

-1.2-+/- 2.4; 2.4

-1.7 +/- 5.5; 5.5

-1.2_+/- 2.1; 2.1 1.6_+/- 2.1; 2.1

-0.4 +/- 2.0; 2.0

-1.5_+/- 1.7; 1.7 05-03-01 LMI-3532 0.07 +/- 0.20; 0.20 5.1 +/- 3.4; 3.5

-0.6 +/- 7.8; 7.8

-0.7-+/- 3.7; 3.7 3.5 +/- 4.5; 4.5

-2.4 +/- 7.7; 7.7

-0.5 +/- 3.8; 3.8

-1.1 +/- 4.2; 4.2 2.2 +/- 4.0; 4.0

-2.3 +/- 3.4; 3.4 0.03 +/- 0.16; 0.16 1.6+/- 1.9; 1.9 6.7_+/- 4.4; 4.5 0.6+/- 1.8; 1.8 0.2_+/- 2.9; 2.9 1.4 +/- 5.4; 5.4

-0.7-+/- 1.8; 1.8 0.2 +/- 2.3; 2.3

-0.9 +/- 2.0; 2.0 1.8_+/- 1.9; 1.9 05-17-01 LMI-3997

-0.18 +/- 0.19; 0.19 0.1 +/- 3.0; 3.0

-3.6 +/- 5.8; 5.8 2.3_+/- 3.0; 3.0

-0.6 +/- 3.3; 3.3 3.3 +/- 7.3; 7.3

-0.7+/- 2.8; 2.8

-0.4 +/- 3.7; 3.7

-0.9_+/- 3.4; 3.4 6.9 +/- 2.2; 2.4 0.33 t+0.36;0.37

-4.0 +/- 3.8; 3.8

-1.4_+/- 7.2; 7.2

-0.3_+/- 4.1; 4.1 1.4 +/- 4.7; 4.7 3.5_+/- 10.0; 10.1

-3.1 +/- 4.0; 4.0 1.1 +/- 4.7; 4.7 0.2-+/- 3.2; 3.2

-18.1 +/- 5.4; 5.9 05-31-01 LMI-4414

-0.01 +/- 0.20; 0.20 2.4 +/- 1.8; 1.8

-3.0-+/- 4.0; 4.0

-0.3-+/- 1.9; 1.9

-1.1 +/- 2.3; 2.3

-3.1 +/- 5.6; 5.6

-0.3 +/- 2.0; 2.0

-0.8 +/- 2.3; 2.3 0.9 +/- 2.2; 2.2

-0.7 +/- 1.7; 1.7

-0.09 +/- 0.15; 0.15

-0.9-+/- 3.5; 3.5

-0.4_+/- 7.1; 7.1 0.6 + 4.2; 4.2 0.4+/- 4.0; 4.0

-4.4+/- 8.1; 8.1

-3.4 +/- 4.5; 4.5

-1.0-+/- 5.1; 5.1

-0.1 +/- 3.8; 3.8

-1.3 + 2.7; 2.7 06-15-01 LMI-4906

-0.18 +/--0.17; 0.17

-0.2+/- 2.0; 2.0 1.6+/- 5.0; 5.0

-0.4 2.0; 2.0 1.0+/- 2.1; 2.2

-3.8_+/- 5.2; 5.2 2.0-+/- 2.4; 2.4

-1.9-+/- 2.3; 2.3 0.3 +/- 2.0; 2.0 0.5 +/- 1.8; 1.8 MI - 15 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140

LASALLE Table 3.

Milk Collection:

ODCM Required LLDs:

Other LLDs:

Units:

Biweekly (May - October)

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

Cs-134 = 15, Cs-137 = 18, Ba/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 06-28-01 LMI-5358 07-12-01 LMI-5940 07-26-01 LMI-6521 08-09-01 LMI-6985

-0.08 +/- 0.22; 0.22 0.9 +/- 3.5; 3.5 6.5_+/- 7.2; 7.3

-1.3 +/- 3.7; 3.7 2.9_+/- 4.6; 4.7 3.5 +/- 7.7; 7.7

-3.3_+/- 3.7; 3.8

-2.6 +/- 5.2; 5.2 1.6_+/- 3.8; 3.8

-3.8 +/- 3.5; 3.6 08-23-01 LMI-7302

-0.14 +/-_0.16;0.16 2.1 +/- 3.6; 3.6 1.5 +/- 7.7; 7.7

-1.9+/- 3.8; 3.8 3.1 +/- 4.0; 4.0 13.4-+/- 8.2; 8.4

-2.9_+/- 4.1; 4.1

-0.7 + 4.2; 4.2 1.6+/-t 3.6; 3.6

-1.0_+/- 4.8; 4.8

-0.25 +/- 0.21; 0.21

-2.6_+/- 2.8; 2.8

-3.1+/- 6.1; 6.1

-2.4+/- 3.0; 3.0

-1.7++/- 3.4; 3.4

-4.6 +/- 6.4; 6.4

-3.9_+/- 2.9; 2.9 1.0_+/- 3.6; 3.6 0.3 +/- 3.3; 3.3

-2.4_+/- 2.2; 2.2 09-06-01 LMI-7801,2

-0.16 +/- 0.17; 0.17

-2.0_+/- 2.2; 2.2 0.5 +/- 4.4; 4.4 1.8_+/- 2.0; 2.0

-1.5_+/- 2.8; 2.8

-3.8 +/- 4.9; 4.9 0.1 -+/- 2.2; 2.2

-0.5 + 2.5; 2.5

-0.7+/- 2.1; 2.1 0.2+/- 1.8; 1.8

-0.09 +/- 0.14; 0.14

-0.9 +/- 3.4; 3.4

-1.8_+/- 7.8; 7.8

-1.6_+/- 3.3; 3.4

-1.1 +/- 3.8; 3.8

-10.4-+/- 8.0; 8.1

-1.3_+/- 3.1; 3.1

-5.4 +/- 4.5; 4.6

-1.4_+/- 3.5; 3.5

-0.8 +/- 3.7; 3.7 09-20-01 LMI-8168

-0.35 +/- 0.21; 0.22

-3.9-+/- 3.9; 3.9 5.1_+/- 10.1; 10.1 0.4_+/- 4.3; 4.3

-4.1 +/- 6.5; 6.5 5.3-+/- 12.1; 12.1

-1.3-+/- 4.3; 4.3 1.3 +/- 4.9; 4.9 3.7 +/- 4.0; 4.0

-2.8 +/- 4.9; 4.9

-0.15 _t 0.18; 0.18 0.6+/-t 1.9; 1.9

-12.2_+/- 3.9; 4.2 2.7_+/- 1.8; 1.8 0.2+/- 2.1; 2.1 4.0_+/- 5.0; 5.0

-4.4 +/- 1.8; 1.9 0.2+/- 2.1; 2.1

-0.1+/- 2.1; 2.1

-3.4 +/- 1.5; 1.6 10-04-01 LMI-8809 0.04 +/- 0.17; 0.17 3.3 +/- 2.2; 2.2

-2.5 + 4.2; 4.2

-0.5 +/- 2.2; 2.2

-0.1 +/- 2.4; 2.4

-1.3-+/- 5.7; 5.7 1.7 +/- 2.3; 2.3

-0.5 +/- 2.3; 2.3 0.5 +/- 2.4; 2.4

-2.6 +/- 1.5; 1.5 111 -16 Date Collected Lab Code 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/Lfa-140

Table

3.

Milk Collection:

ODCM Required LLDs:

Other LLDs:

Units:

LASALLE Biweekly (May - October)

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

Cs-134 = 15, Cs-137 = 18, Ba/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 10-18-01 LMI-9401 11-01-01 LMI-10027 12-06-01 LMI-10936

-0.05 t 0.17; 0.17 2.2+/- 3.8; 3.8

-6.7 +/- 7.5; 7.6 1.3+/- 3.8; 3.8 3.4+/- 4.1; 4.2 1.0 +/- 9.7; 9.7 1.0-+/- 3.6; 3.6

-4.4-+/- 4.5; 4.5 1.5 +/- 4.0; 4.0 9.1 +/- 3.5; 3.7 0.13 t+/-0.18;0.18

-0.9 +/- 1.5; 1.5

-5.0_+/- 3.6; 3.7

- 1.2 +/- 1.4; 1.4

-0.1 +/- 1.5; 1.5

-0.5 +/- 4.0; 4.0

-3.0 +/- 1.5; 1.6

-0.6 +/- 1.8; 1.8 1.5-+/- 1.7; 1.7 3.0 +/- 1.3; 1.4

-0.00 +/- 0.22; 0.22

-0.8+/- 2.9; 2.9 1.6-+/- 6.8; 6.8 0.4 +/- 2.7; 2.7

-0.8+/- 3.8; 3.8

-12.4_+/- 8.5; 8.7

-3.7 +/- 3.6; 3.6 1.0 +/- 3.9; 3.9

-0.5 +/- 3.8; 3.8

-3.7 +/- 3.5; 3.6 II -17 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140

Table 4.

Fish, Edible Portions Collection:

Semiannually ODCM-Required LLDs:

Other LLDs:

Units:

LASALLE 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 Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight 10.2 pCi/g wet weight Sample Description and Concentration L-35 (C) Marseilles Pool of Illinois River Date Collected Lab Code 05-03-01 LF-3457 05-03-01 LF-3458 05-03-01 LF-3459 05-03-01 LF-3460 River Carpsucker 0.2 +/- 0.6; 0.6

-0.2 +/- 1.7; 1.7

-0.8 _+ 0.6; 0.6

-0.4+/- 0.9; 0.9 0.3 +/- 1.6; 1.6 0.2 +/- 0.7; 0.7

-0.5 +/- 0.7; 0.7

-0.1 +/- 0.7; 0.7 0.7 +/- 0.8; 0.8 10-17-01 LF-9355 Channel Catfish 0.4+/- 0.9; 0.9

-1.6+/- 2.1; 2.2

-0.0 +/- 0.8; 0.8 0.1 +/- 0.9; 0.9 2.6+/- 1.9; 1.9 1.7 0.6; 0.7 0.1 +/- 1.0; 1.0 0.2 - 0.8; 0.8

-0.4 +/- 0.9; 0.9 Carp

-0.1 +/- 0.7; 0.7 1.5 +/- 1.9; 1.9 0.3 +/- 0.5; 0.5 0.5 +/- 0.9; 0.9

-2.3 +/- 2.0; 2.1

-4.0 +/- 1.7; 1.8 0.4++/- 0.8; 0.8

-0.1 +/-- 0.7; 0.7

-2.0 +/- 0.7; 0.7 10-17-01 LF-9356 Carp

-0.6 +/- 0.8; 0.8

-2.9 +/- 2.1; 2.1 0.4++/- 0.8; 0.8 0.4 +/- 0.7; 0.7 1.2 +/- 2.5; 2.5 0.2++/- 0.8; 0.8

-0.6 +/- 1.1; 1.1 0.3 +/- 0.7; 0.7

-5.0 +/- 1.3; 1.5 Channel Catfish 0.2 +/- 0.8; 0.8 0.1 +/- 2.0; 2.0 0.2++/- 0.8; 0.8 0.1 +/- 1.0; 1.0

-0.5 +/- 2.3; 2.3

-3.0 +/- 1.7; 1.7 0.2 +/- 1.0; 1.0 0.0 +/- 0.8; 0.8 2.7 +/- 0.7; 0.8 10-17-01 LF-9357 Freshwater Drum

-0.2 +/- 0.6; 0.6

-0.9 +/- 1.6; 1.6

-0.2 +/- 0.6; 0.6 0.7 +/- 0.7; 0.7 0.6 +/- 2.0; 2.0 0.4 +/- 0.5; 0.5

-0.1 +/- 0.8; 0.8

-0.3 +/- 0.8; 0.8

-1.1 +/- 0.7; 0.7 Smallmouth Buffalo 0.7+/- 1.0; 1.0

-0.8 +/- 2.3; 2.3

-0.2 +/- 0.8; 0.8

-1.5+/-t 1.3; 1.3

-1.2 +/- 2.4; 2.4

-0.0 +/- 0.8; 0.8

-0.2 +/- 1.0; 1.0

-0.7-+/- 0.9; 0.9 0.7_+/- 0.9; 0.9 10-17-01 LF-9358 Smallmouth Buffalo 0.1 +/- 0.8; 0.8

-0.4 +/- 1.7; 1.7 0.1 +/- 0.8; 0.8

-0.8 +/- 1.1; 1.1

-1.0 +/- 1.9; 1.9 1.9 +/- 0.8; 0.8

-0.1 +/- 0.8; 0.8 0.1 +/- 1.0; 1.0 3.0+/-t 0.6; 0.8 i1i -18 Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140

Table 4.

Fish, Edible Portions Collection:

Semiannually ODCM-Required LLDs:

Other LLDs:

Units:

LASALLE 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 Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight 10.2 pCi/g wet weight Sample Description and Concentration L-35 (C) Marseilles Pool of Illinois River 10-17-01 LF-9359 River Carpsucker 0.7+/- 0.9; 0.9 0.6_+/- 1.8; 1.8

-0.8 +/- 0.7; 0.7

-0.0_+/- 1.2; 1.2 0.5 +/- 2.2; 2.2 0.7 +/- 0.8; 0.8 0.0 +/- 0.9; 0.9

-1.3 +/- 0.9; 0.9 2.0 +/- 0.8; 0.8 Date Collected Lab Code Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 11I -19

Table 4.

Fish, Edible Portions Collection:

Semiannually ODCM-Required LLDs:

Other LLDs:

Units:

LASALLE 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 Zr/Nb-95 = 0.20, Ba/La-140 = 0.30 pCi/g wet weight 10-2 pCi/g wet weight Sample Description and Concentration L-36 Illinois River, Upstream of Discharge Date Collected Lab Code 05-03-01 LF-3461 05-03-01 LF-3462 05-03-01 LF-3463 05-03-01 LF-3464 Carp

-0.0 +/- 0.8; 0.8 2.6_+/- 1.6; 1.6

-0.3 +/- 0.7; 0.7 0.1 +/- 0.8; 0.8

-0.7+/- 2.1; 2.1

-0.7+/- 0.8; 0.8 0.3 +/- 0.6; 0.6 0.2 +/- 0.7; 0.7

-1.0 +/- 0.9; 0.9 10-17-01 LF-9351 Channel Catfish 0.1 +/- 0.9; 0.9

-0.2 +/- 1.9; 1.9

-0.3 +/- 0.6; 0.6

-0.4 +/- 0.9; 0.9

-0.7_+/- 2.2; 2.2 0.5 +/- 0.6; 0.6 0.7-+/- 0.7; 0.7 0.1 +/- 0.8; 0.8 1.0_+/- 0.9; 0.9 Smallmouth Buffalo

-0.2 +/- 0.8; 0.8 0.7+/- 1.5; 1.5 0.3 +/- 0.7; 0.7 0.2+/- 0.8; 0.8

-0.8-+/- 2.1; 2.1 0.2+/- 0.7; 0.7

-0.8 +/- 0.8; 0.8 0.3 +/- 0.6; 0.6

-0.2_+/- 0.8; 0.8 10-17-01 LF-9352 Carp 0.5 +/- 0.8; 0.8 0.2_+/- 1.3; 1.3 0.5 +/- 0.7; 0.7

-0.3-+/- 1.2; 1.2

-0.8-+/- 2.1; 2.1

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

-0.2+/- 0.7; 0.7

-1.1 +/- 1.0; 1.0 River Carpsucker 0.6_+/- 0.4; 0.4

-0.5+/- 1.1; 1.1 0.3_+/- 0.5; 0.5

-0.2 +/- 0.6; 0.6

-0.7 +/- 1.4; 1.4 0.2 +/- 0.5; 0.5 0.4+/- 0.5; 0.5 0.5_+/- 0.5; 0.5 0.2 +/- 0.5; 0.5 10-17-01 LF-9353 Freshwater Drum 0.1 +/- 0.7; 0.7

-2.1 _ 1.8; 1.8 0.2 _ 0.7; 0.7

-0.0+/- 1.0; 1.0

-1.0+/- 2.1; 2.1

-0.4+/- 0.7; 0.7

-0.7+/- 0.7; 0.7 0.7_+/- 0.8; 0.8

-0.4 +/- 0.8; 0.8 Freshwater Drum 0.2 +/- 0.8; 0.8

-0.2_+/- 1.5; 1.5

-0.3 +/- 0.7; 0.7

-0.5 +/- 0.9; 0.9

-0.9 +/- 2.0; 2.0

-0.4 +/- 0.7; 0.7

-0.1 +/- 0.9; 0.9

-0.1 +/- 0.8; 0.8

-0.8 +/- 0.9; 0.9 10-17-01 LF-9354 River Carpsucker 0.3_+/- 0.9; 0.9

-0.7_+/- 1.6; 1.6

-0.4 +/- 0.9; 0.9

-0.3 +/- 1.0; 1.0 1.1 +/- 2.1; 2.1

-0.4 _ 2.0; 2.0 0.1 +/- 0.9; 0.9 0.0 +/- 0.8; 0.8

-2.7+/- 1.0; 1.1 11I -20 Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code Type MIn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140

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-58,60 = 0.10; Zn-65 = 0.60; Zr/Nb-95 = 0.20; Ba/La = 0.60 Units:

10-2 pCi/g dry weight Sample Description and Concentration L-40 Illinios River Downstream 05-10-01 LBS-3811 0.3.t 0.8; 0.8

-0.4 +/- 1.7; 1.7

-0.3 +/- 0.6; 0.6 0.4_+/- 1.0; 1.0

-0.8_+/- 2.1; 2.1

-0.9 +/- 0.8; 0.9 0.7_+/- 0.9; 0.9 2.9_+/- 1.6; 1.6

-1.6 +/- 0.8; 0.8 10-04-01 LBS-8819

-0.3+/- 1.4; 1.4

-6.3 +/- 3.3; 3.4 2.3+/-- 1.3; 1.3 0.4+/- 1.7; 1.7

-0.6_+/- 4.1; 4.1

-5.8 +/- 1.4; 1.6 1.8 +/- 1.6; 1.7 6.4 +/- 2.9; 3.0

-45.1 +/- 1.6; 6.3 L-41 Illinios River Downstream 05-10-01 LBS-3812 0.2_+/- 0.9; 0.9

-0.7 +/- 2.3; 2.3

-0.8 +/- 0.8; 0.8 0.6++/- 1.1; 1.1

-5.0 +/- 2.7; 2.8

-3.3 +/- 1.0; 1.1 2.2 +/- 1.2; 1.2 4.8 +/- 2.3; 2.4

-1.2+/- 1.1; 1.1 10-04-01 LBS-8820 1.0+/- 1.5; 1.5

-4.9 +/- 3.8; 3.8 1.7_+/- 1.3; 1.4

-0.0_+/- 1.8; 1.8

-6.8 +/- 4.0; 4.1

-4.0 +/- 1.5; 1.6 2.3 +/- 1.8; 1.8 2.0-+/- 1.6; 1.7

-30.4 +/- 1.6; 4.4 111-21 Date Collected Lab Code Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140

Table 6.

Vegetation Collection:

ODCM Required LLDs:

Other LLDs:

Units:

LASALLE Annualiy 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 10.2 pCi/g wet weight Sample Description and Concentration 1*. V

.,.flfl (-'1,arm, nn,.Ic.

Date Collected Lab Code 08-30-01 LVE-7576 Cabbage Type 08-30-01 LVE-7577 Beets 0.2 +/- 0.4; 0.4 0.0 +/- 0.9; 0.9 0.0 +/- 0.4; 0.4 0.1 +/- 0.4; 0.4

-0.7 +/- 1.1; 1.1

-0.4 +/- 0.7; 0.7 0.0 +/- 0.4; 0.4

-0.0 +/- 0.4; 0.4

-0.2 +/- 0.4; 0.4 0.5 +/- 0.3; 0.3 0.4 +/- 0.8; 0.8 2.2_+ 1.4; 1.5

-0.6 +/- 0.7; 0.7

-0.1 +/- 0.8; 0.8

-1.2_ 1.7; 1.7

-0.5 +/- 0.6; 0.6

-0.1 +/-0.7; 0.7

-0.1 +/- 0.8; 0.8

-0.1 +/-- 0.8; 0.8 0.2 +/- 0.7; 0.7 L-Ouad 1 Diane Partridge 08-30-01 LVE-7567 Cabbage 08-30-01 LVE-7568 Potatoes

-0.1 +/- 0.8; 0.8 0.4 +/- 1.5; 1.5 0.1 +/- 0.7; 0.7 0.4 +/- 0.7; 0.7 0.5 +/- 1.8; 1.8

-0.3 +/- 0.8; 0.8 0.5 +/- 0.7; 0.7

-0.1 +/- 0.9; 0.9 0.5 +/- 0.9; 0.9 0.1 +/- 0.7; 0.7 0.2 +/- 0.5; 0.5

-0.4_+/- 1.4; 1.4 0.4+/- 0.5; 0.5 0.4+/- 0.8; 0.8 1.1 +/- 1.7; 1.7

-0.3 +/- 1.2; 1.2

-0.4 +/- 0.4; 0.4

-0.4 +/- 0.7; 0.7

-0.2 +/- 0.7; 0.7

-1.3 +/- 0.8; 0.8 III -22 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 1-131 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 1-131 Cs-134 Cs-137 Ba/La-140 TL -f--..*l ll

,J 4-

.1.1-.P 0I1IL-.IL 4..L

-LLL:I L.

T _('%*-*..-d f'*

Table

6.

Vegetation Collection:

ODCM Required LLDs:

Other LLDs:

Units:

LASALLE Annual ly 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 10.2 pCi/g wet weight Sample Description and Concentration L-Ouad 2 Mike & Gina Welboume 08-30-01 LVE-7569 Beets 1.3_+/- 1.0; 1.1

-0.9 +/- 1.9; 1.9

-0.4 +/- 0.7; 0.7 0.2-+/- 1.0; 1.0

-0.9 +/- 2.1; 2.1

-0.1 +/- 0.9; 0.9 0.1 +/- 0.6; 0.6 0.4_+/- 0.8; 0.8 0.5 +/- 0.8; 0.8

-0.9 +/- 0.7; 0.7 L-Quad 3 Michael Olson 08-30-01 LVE-7571 Beets 08-30-01 LVE-7570 Beet greens 0.8 +/- 0.7; 0.7

-1.0_+/- 1.5; 1.5

-0.3 +/- 0.7; 0.7 0.4 +/- 0.8; 0.8 0.1 +/- 2.1; 2.1 0.1 +/- 0.7; 0.7 0.5 +/- 0.6; 0.6 0.1 +/- 1.0; 1.0

-0.2 +/- 0.8; 0.8

-0.4 +/- 0.8; 0.8 08-30-01 LVE-7572 Beet greens 0.2 +/- 0.7; 0.7 0.8 +/- 1.4; 1.4 0.4 +/- 0.7; 0.7 0.8 +/- 0.8; 0.8 1.2_+/- 1.5; 1.5 0.8 +/- 0.6; 0.6 0.9 +/- 0.7; 0.7

-0.2 +/- 0.9; 0.9 0.2 +/- 0.7; 0.7

-0.1 +/- 0.8; 0.8

-0.7 +/- 0.9; 0.9 1.6_+/- 1.8; 1.8 1.0 +/- 1.0; 1.0 0.5_+/- 1.2; 1.2 0.5 +/- 2.3; 2.3

-0.3 +/- 0.8; 0.8 0.8 +/- 0.8; 0.8 0.7_+/- 0.9; 0.9 0.1 +/- 0.8; 0.8

-1.5 +/- 1.0; 1.0 HI -23 Date Collected Lab Code Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 1-131 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code Type Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 1-131 Cs-134 Cs-137 Ba/La-140

Table 6.

Vegetation Collection:

ODCM Required LLDs:

Other LLDs:

Units:

LASALLE 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 10-2 pCi/g wet weight Sample Description and Concentration L-Ouad 4 Robert Eisers Date Collected Lab Code 08-30-01 LVE-7573,4 Cabbage Type 08-30-01 LVE-7575 Potatoes 0.3 +/- 0.4; 0.4 0.4 +/- 0.8; 0.8 0.0 +/- 0.3; 0.3

-0.3 +/- 0.4; 0.5

-1.1 +/- 0.9; 0.9

-0.1 +/- 0.4; 0.4

-0.7 +/- 0.4; 0.4 0.2 +/- 0.5; 0.5

-0.2 +/- 0.4; 0.4

-0.6 +/- 0.3; 0.3 0.3 +/- 0.9; 0.9 1.4 +/- 2.2; 2.2 0.6 +/- 0.8; 0.8 1.3 +/- 0.9; 0.9

-0.5 +/- 2.4; 2.4 0.4 +/- 0.9; 0.9

-0.3 +/- 0.7; 0.7

-0.3 +/- 1.0; 1.0

-0.5 +/- 0.9; 0.9 0.4_+/- 1.0; 1.0 11 -24 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 1-131 Cs-134 Cs-137 Ba/La-140

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/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L pCi/L Sample Description and Concentration L-21 (C) Illinois River at Seneca January LSW-948 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 February LSW-1697 6.4 +/- 1.9; 2.2

-0.1 +/- 1.3; 1.3

-0.2_+/- 3.2; 3.2

-1.5_+/- 1.7; 1.7 0.9 +/- 1.7; 1.7 3.0 +/- 3.0; 3.0 0.9 +/- 1.5; 1.5

-0.5_+/- 1.8; 1.8 0.7 +/- 1.6; 1.6

-3.3 +/- 2.2; 2.2 May 5.6 +/- 1.6; 1.8 0.9 +/- 1.5; 1.5

-5.1 +/- 3.2; 3.3 0.5 +/- 1.6; 1.6 0.7_+/- 1.6; 1.6 0.5-+/- 3.4; 3.4 0.6 +/- 1.8; 1.8 3.2+/- 2.1; 2.1

-0.9 +/- 1.5; 1.5

-5.9 +/- 1.8; 2.0 April LSW-3758 5.4 +/- 1.8; 2.0 0.2_+/- 0.8; 0.8

-0.4_+/- 1.6; 1.6 0.3 +/- 0.8; 0.8 1.0_+/- 0.9; 0.9 0.6_+/- 1.6; 1.6

-3.3_+/- 1.0; 1.1 0.3_+/- 1.0; 1.0

-0.2_+/- 1.0; 1.0 2.6_+/- 1.0; 1.0 March LSW-2333 4.9 +/- 1.7; 1.9 2.0+/- 3.1; 3.1

-1.8 +/- 6.5; 6.5 1.1 +/- 3.4; 3.4 2.9 +/- 3.7; 3.7

-5.8 +/- 6.9; 7.0 1.6-+/- 3.0; 3.0 2.3 +/- 3.7; 3.7

-0.4+/-. 3.4; 3.4

-7.1 +/- 4.3; 4.4 June LSW-5556 4.1 +/-_ 1.4; 1.6 0.0 +/- 1.6; 1.6

-2.2.+/- 3.2; 3.2

-0.1+/- 1.8; 1.8 0.2 1.6; 1.6 3.1+/- 3.1; 3.1 2.5+/- 1.8; 1.9 1.0 2.3; 2.3

-0.7+/- 2.1; 2.1 4.9+/- 1.6; 1.8 III -25 LSW-4641 4.5 +/- 1.3;1.5

-1.0+/- 1.8; 1.8

-0.4 +/- 3.3; 3.3

-1.1+/- 1.9; 1.9 1.0 +/- 2.3; 2.3 0.5++/- 3.8; 3.8

-0.8_+/- 1.9; 1.9

-3.2+/- 2.0; 2.1

-0.9-+/- 2.0; 2.0 1.0+/- 1.8; 1.8

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/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L pCi/L Sample Description and Concentration L-21 (C) Illinois River at Seneca July LSW-6732 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 August LSW-7798 6.4 +/- 1.2; 1.6 2.1++/- 1.9; 1.9 3.8 +/- 3.3; 3.3 0.6 +/- 1.6; 1.6 1.4 +/- 1.7; 1.7 1.6 +/- 3.9; 3.9

-5.5 +/- 4.2; 4.3

-0.6_+/- 2.0; 2.0 0.1 +/- 2.4; 2.4

-0.5+/- 1.9; 1.9 November LSW-10967 4.6_+/-_1.1 ;1.3 2.0-+/- 1.6; 1.6 4.6-+/- 2.7; 2.8 2.2_+/- 2.1; 2.1 0.2_+/- 1.9; 1.9

-6.3 +/- 4.5; 4.6

-1.1++/- 1.8; 1.9 0.1 +/- 2.2; 2.2 1.2++/- 1.9; 1.9 2.1 +/- 2.5; 2.5 September LSW-8724 6.1 +/- 1.7; 1.9 1.0+/- 1.8; 1.8 3.3 +/- 3.5; 3.5 0.3 +/- 1.7; 1.7 1.6+/- 1.8; 1.8

-0.1 _ 3.6; 3.6

-0.1 1.7; 1.7 0.1 _ 2.0; 2.0 0.4+/- 1.6; 1.6

-4.9+/- 2.0; 2.1 December LSW-11620 4.9 +/- 1.1 ; 1.3 0.2 +/- 2.9; 2.9

-2.0 +/- 5.5; 5.5

-1.1 t 2.1; 2.1 1.0 +/- 2.7; 2.7

-0.6 +/- 4.9; 4.9 1.1 +/- 2.8; 2.8

-0.1 +/- 3.0; 3.0 0.7 +/- 3.3; 3.3 1.3+/- 4.1; 4.1 IM -26 6.1 +/- 1.5; 1.8 0.1 +/- 0.6; 0.6

-0.5+/- 1.1; 1.1 0.8_+/- 0.6; 0.6

-0.2 +/- 0.7; 0.7

-0.7-+/- 1.2; 1.2

-0.2 +/- 0.7; 0.7 0.5 +/- 0.7; 0.7 0.3 +/- 0.7; 0.7

-0.1 +/- 0.7; 0.7 October LSW-9863 5.1 +/- 1.6; 1.7 0.3 +/- 0.9; 0.9

-1.1_+/- 1.9; 2.0 0.6+/- 0.9; 0.9 1.3++/- 1.1; 1.2

-0.3 +/- 1.9; 1.9 0.1+/- 1.0; 1.0 0.5-+/- 1.1; 1.1 0.8-+/- 1.0; 1.0 0.5-+/- 1.4; 1.4

LASALLE 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/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L pCi/L Sample Description and Concentration L-40 Illinois River Downstream January LSW-949 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 February LSW-1698,9 5.8 +/- 1.3; 1.4

-0.0 +/- 1.2; 1.2 0.2 +/- 2.2; 2.2

-1.2_+/- 1.4; 1.4

-0.3+/-t 1.2; 1.2

-0.0_+/- 2.6; 2.6

-0.6 +/- 1.3; 1.3 1.3_+/- 1.5; 1.5 0.3_+/- 1.2; 1.2 1.3 +/- 1.3; 1.3 May LSW-4642 4.8 +/- 1.0;-1.3

-0.3 +/- 1.5; 1.5 2.1 +/- 2.9; 2.9

-0.8 +/- 1.5; 1.5 0.1 +/- 1.9; 1.9

-0.1 +/- 3.3; 3.3

-1.0+/- 1.7; 1.7

-0.3 +/- 1.7; 1.7 0.2 +/- 2.0; 2.0 1.7_+/- 2.1; 2.2 March LSW-2334 4.7 +/- 1.6; 1.8 0.7+/- 3.4; 3.4

-0.8 +/- 6.2; 6.2

-0.9 +/- 2.9; 2.9

-1.7 +/- 4.0; 4.0

-0.8-+/- 7.0; 7.0

-2.2_+/- 3.8; 3.8

-1.5 +/--4.1; 4.1 1.2+/- 3.2; 3.2 2.6 3.9; 3.9 June LSW-5557,8 5.7 +/- 1.2; 1.3 0.1_+/- 1.2; 1.2

-4.5 +/- 2.4; 2.5

-0.6 +/- 1.2; 1.2 0.9 +/- 1.2; 1.2 0.3 +/- 2.8; 2.8

-0.7_+/- 1.2; 1.2

-0.1 +/- 1.4; 1.4 0.3 1.3; 1.3

-3.0+/- 1.4; 1.5 IT1 -27 Table 7.

5.7 +/- 1.7; 1.9 0.7_+/- 1.2; 1.2

-1.0++/- 2.8; 2.8 0.3+/- 1.1; 1.1 0.6+/- 1.5; 1.5 0.3 +/- 2.7; 2.7

-0.5 +/- 1.2; 1.2 0.3 +/- 1.5; 1.5 1.5 +/- 1.3; 1.3

-1.3+/- 1.4; 1.4 April LSW-3759 4.1 +/- 1.0; 1.2 0.8 +/- 1.3; 1.3

-1.1 +/- 2.3; 2.3 0.2 +/- 1.3; 1.3

-0.3 +/- 1.3; 1.3

-2.3_+/- 2.6; 2.6

-1.1_+/- 1.3; 1.3

-0.2 +/- 1.8; 1.8

-0.2_+ 1.2; 1.2 6.0 +/- 1.3; 1.6

LASALLE 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/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L pCi/L Sample Description and Concentration L-40 Illinois River Downstream July LSW-6733 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 2001 Collection Period Lab Code Gross Beta Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 August LSW-7799 5.7 +/- 1.1 ; 1.4

-1.0+/- 1.8; 1.9 0.3 +/- 4.7; 4.7 1.2+/- 2.2; 2.2

-1.8+/- 1.8; 1.8 0.4_ 3.9; 3.9

-0.9+/- 2.1; 2.1

-1.9+/- 2.4; 2.4 0.5 2.4; 2.4 1.0+/- 1.9; 1.9 November LSW-10968 6.7 +/- 1.2 ;-1.6

-2.1 +/- 2.7; 2.7

-1.7++/- 3.9; 3.9

-0.4-t 2.6; 2.6 2.7 +/- 2.4; 2.4 4.7+/- 4.9; 5.0 1.5 +/- 2.8; 2.8 2.3 +/- 2.9; 2.9 3.7++/- 3.1; 3.1 6.5 +/- 3.3; 3.5 September LSW-8725 5.1 +/- 1.7; 1.9 1.4 +/- 1.7; 1.7

-0.8++/- 3.2; 3.2 0.4+/- 1.5; 1.5

-0.3 +/- 1.7; 1.7

-1.0+/- 3.0; 3.0

-1.7_+/- 1.6; 1.6

-0.5 +/- 2.0; 2.0 1.5_+/- 1.8; 1.8

-1.8++/- 2.0; 2.0 December LSW-11621 4.9 +/- 1.0; 1.3

-0.5 +/- 2.9; 2.9

-0.5 +/- 4.0; 4.0 0.8 +/- 2.5; 2.5

-3.1 +/- 3.5; 3.5 0.3 +/- 5.4; 5.4

-4.1. 3.3; 3.3 2.1 +/- 3.0; 3.0 3.0 +/- 3.3; 3.3

-4.6 +/- 2.9; 3.0 HI -28 Table 7.

5.8 +/- 0.9; 1.3 0.2_+/- 0.9; 0.9

-1.7 +/- 2.0; 2.0 0.3_+/- 1.0; 1.0 0.2+/- 1.1; 1.1

-4.4 +/- 2.5; 2.6

-2.7++/- 1.1; 1.2

-0.9 +/- 1.0; 1.0 0.2-+/- 1.0; 1.0

-1.6+/- 1.2; 1.2 October LSW-9864 5.1 +/- 1.5; 1.7 1.2 + 1.7; 1.7 7.3 +/- 4.6; 4.7 1.1 +/- 2.0; 2.0

-0.2 +/- 2.8; 2.8

-1.4++/- 4.4; 4.4 3.7+/- 2.4; 2.4

-2.0_+/- 2.4; 2.5 2.6 +/- 2.5; 2.6

-8.0 +/- 2.3; 2.5

LASALLE Table

7.

Surface Water Collection:

ODCM Required LLD:

Units:

Quarterly composites of weekly collections H-3 = 200 pCi/L pCi/L 2001 Sample Description and Concentration Collection Period Lab Code Tritium L-21 (C) Illinois River at Seneca 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter LSW-2335,6 LSW-5561 LSW-8726,7 LSW-11622,3 180 +/- 70; 72 651 +/- 101; 134 654 +/- 74; 97 157 +/- 63; 65 L-40 Illinois River Downstream 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter LSW-2337 LSW-5562 LSW-8728 LSW-11624 254 +/- 101; 107 153 +/- 81; 84 663 +/- 105; 138 237 +/- 93; 98 III -29

LASALLE 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/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140 = 15 pCi/L pCi/L Sample Description and Concentration L-27 LSCS Onsite Well at Station 01-18-01 LWW-265

-30_+/- 87; 87

-4.1 +/- 3.5; 3.5

-2.3 +/- 5.9; 5.9 1.1+/- 3.1; 3.1

-4.4 +/- 3.8; 3.9

-1.8+/- 5.9; 5.9 2.7 +/- 3.3; 3.3 0.3 +/- 3.5; 3.5

-2.4 +/- 3.7; 3.7

-1.4_+/- 3.5; 3.5 01-11-01 LWW-154 79 +/- 92; 92 0.1_+ 1.1; 1.1

-0.8++/- 2.3; 2.3 0.2+/- 1.1; 1.1

-0.9 +/- 1.0; 1.0

-3.4 +/- 2.5; 2.6

-0.9 +/- 1.2; 1.3 1.2_+/- 1.3; 1.3 0.0_+/- 1.2; 1.2

-3.5 +/- 1.4; 1.5 04-12-01 LWW-2773 8 +/- 80; 80 2.4 +/- 2.7; 2.7 0.3-+/- 5.8; 5.8 1.1 +/- 3.2; 3.2 1.0+/- 3.1; 3.1

-1.3_+/- 6.6; 6.6

-5.2-+/- 3.4; 3.5

-0.8 +/- 3.9; 3.9 0.6-+/- 3.0; 3.0 1.6 +/- 3.7; 3.7 L-28 Marseilles Well 04-12-01 LWW-2774

-11 +/- 79; 79 0.9_+/- 3.0; 3.0 3.8_+/- 3.6; 3.6 1.7 +/- 2.3; 2.4

-1.7 +/- 3.2; 3.2

-0.9 +/- 5.9; 5.9 0.7_+/- 1.8; 1.8 0.2 +/- 2.0; 2.0

-0.2_+/- 2.7; 2.7 1.8+/- 3.1; 3.1 07-12-01 LWW-6002 12 +/- 74; 74

-0.5 +/- 0.6; 0.6

-0.9+/- 1.1; 1.1 0.6+/- 0.6; 0.6 0.6+/- 0.7; 0.7 0.2_+/- 1.4; 1.4

-2.0 +/- 0.7; 0.7 0.6_+/- 0.7; 0.7 0.2_+/- 0.8; 0.8

-7.8_ +/-0.8; 1.4 07-12-01 LWW-6003

-4 +/- 73; 73 0.2 0.8; 0.8

-0.6+/- 1.4; 1.4

-0.5 0.8; 0.8

-0.6+/- 0.8; 0.8

-10.0+/- 2.1; 2.6

-1.8+/- 1.7; 1.7 0.8+/- 0.9; 0.9 0.1 +/- 0.9; 0.9

-2.9 1.0; 1.1 10-11-01 LWW-9130 50 +/- 79; 79

-1.4_+/- 1.8; 1.8

-1.9_+/- 4.0; 4.0 1.2 +/- 1.5; 1.5 1.6 +/- 2.0; 2.0

-0.2 +/- 4.2; 4.2

-4.3 +/- 2.2; 2.2

-0.2+/- 2.0; 2.0

-0.3 +/- 1.9; 1.9 1.8_+/- 2.2; 2.2 10-11-01 LWW-9131

-53 +/- 74; 74 1.7_+/- 1.4; 1.4 0.1 +/- 3.2; 3.2

-0.0 +/- 1.6; 1.6 2.1+/- 2.1; 2.1

-1.0_+/- 3.2; 3.2

-0.2_+/- 1.6; 1.6

-0.2 +/- 1.7; 1.7

-1.7-+/- 1.8; 1.8

-3.1-+/- 1.7; 1.8 a Sample not available on 01-11-01; collected during next collection period.

I1 -30 Table 8.

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

LASALLE MILCH ANIMALS, NEAREST LIVESTOCK, AND NEAREST RESIDENCES CENSUS 111-31

LASALLE MILCH ANIMALS CENSUS, 2001 L-42 Vince Biros Farm 12.6 miles, Sector E 25%pasture 25% ground grain 50% green chop Census conducted by A. Lewis on August 20, 2001 m-32

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

Sector Direction A

N B

NNE C

NE D

ENE E

E F

ESE G

SE H

SSE J

S K

SSW L

SW M

WSW N

W P

WNW Q

NW R

NNW Census conducted by A. Lewis on August 20,2001 111-33 Distance 4.0 miles 1.7 miles 3.5 miles None None None 4.7 miles 4.7 miles 4.7 miles None 5.8 miles None 3.0 miles 3.0 miles 4.0 miles 4.6 miles

LASALLE NEAREST RESIDENCE CENSUS, 2001 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 Census conducted by A. Lewis on August 20, 2001 111-34 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

LASALLE 4.0 TLD DATA*

TLD Data provided by Exelon Nuclear.

111-35

Exelon Nuclear '

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

a. Air Samplers L-01-1 NEARSITE NO. 1 19.0 22.0 18.0 20.0 L-01-2 NEARSITE NO. 1 19.0 22.0 18.0 24.0 L-03-1 ONSITE NO. 3 21.0 20.0 17.0 23.0 L-03-2 ONSITE NO. 3 20.0 22.0 17.0 23.0 L-04-1 RTE. 170 21.0 19.0 17.0 19.0 L-04-2 RTE. 170 18.0 23.0 17.0 18.0 L-05-1 ONSITE NO. 5 20.0 21.0 19.0 19.0 L-05-2 ONSITE NO. 5 19.0 24.0 18.0 21.0 L-06-1 NEARSITE NO. 6 20.0 26.0 19.0 19.0 L-06-2 NEARSITE NO. 6 20.0 22.0 18.0 20.0 L-07-1 SENECA 20.0 23.0 19.0 22.0 L-07-2 SENECA 19.0 24.0 20.0 22.0 L-08-1 MARSEILLES 19.0 23.0 20.0 22.0 L-08-2 MARSEILLES 21.0 21.0 17.0 22.0 L-11-1 RANSOM 20.0 21.0 15.0 21.0 L-11-2 RANSOM 18.0 18.0 19.0 20.0 Air Sampler Mean S. D.

19.6 +/-1.0 21.9 +/-2.0 18.0 +/-1.3 20.9 +/-1.7 Annual Air Sampler Mean +/- S.D.

20.1 +/-2.1

b. Inner Ring (100 Series)

L-101-1 23.0 22.0 21.0 19.0 L-101-2 20.0 22.0 20.0 23.0 L-1 02-1 21.0 24.0 24.0 27.0 L-102-2 21.0 23.0 20.0 25.0 L-103-1 19.0 20.0 21.0 23.0 L-103-2 22.0 21.0 21.0 24.0 L-104-1 20.0 21.0 21.0 20.0 L-104-2 19.0 21.0 18.0 24.0 L-105-1 22.0 23.0 25.0 23.0 L-105-2 20.0 23.0 24.0 22.0 L-106-1 19.0 21.0 22.0 23.0 L-106-2 19.0 22.0 21.0 23.0 L-107-1 20.0 22.0 23.0 24.0 L-107-2 19.0 21.0 19.0 23.0 L-108-1 20.0 22.0 18.0 20.0 L-108-2 18.0 19.0 18.0 21.0 L-109-1 19.0 22.0 22.0 23.0 L-109-2 21.0 22.0 21.0 23.0 L-110-1 19.0 21.0 19.0 24.0 L-1 10-2 19.0 21.0 18.0 24.0 L-111B-1 20.0 22.0 18.0 24.0 L-111B-2 20.0 22.0 18.0 21.0 111-36

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

b. Inner Ring (100 Series)

L-112-1 L-112-2 L-113A-1 L-113A-2 L-1 14-1 L-1 14-2 L-1 15-1 L-115-2 L-116-1 L-116-2 Inner Ring Mean +/- S.D.

Annual Inner Ring Mean +/- S.D.

19.0 21.0 21.0 20.0 22.0 19.0 19.0 19.0 19.0 19.0 19.9 +/-1.2

c. Outer Ring (200 Series) 20.0 14.0 21.0 18.0 19.0 20.0 19.0 19.0 20.0 19.0 20.0 19.0 18.0 19.0 20.0 21.0 19.0 21.0 20.0 19.0 21.0 21.0 20.0 21.0 23.0 20.0 19.0 19.0 20.0 19.0 a "ND"

= No data; TLD found missing during quarterly exchange.

111-37 Site Quarter 3 2001 17.0 19.0 19.0 19.0 18.0 18.0 18.0 16.0 17.0 17.0 19.7 +/-2.3 21.0 23.0 22.0 24.0 22.0 23.0 21.0 21.0 21.0 20.0 21.7 :1.1 Quarter 4 2001 22.0 25.0 21.0 25.0 20.0 24.0 23.0 18.0 19.0 19.0 22.5 +/-2.1 21.0 +/-2.1 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-21 0-1 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 18.0 23.0 21.0 19.0 21.0 21.0 23.0 23.0 22.0 23.0 22.0 22.0 23.0 23.0 23.0 22.0 23.0 25.0 24.0 21.0 25.0 NDa 25.0 22.0 22.0 22.0 22.0 21.0 23.0 23.0 15.0 18.0 16.0 16.0 18.0 17.0 22.0 18.0 18.0 18.0 18.0 17.0 17.0 20.0 18.0 18.0 19.0 19.0 20.0 18.0 23.0 22.0 21.0 18.0 21.0 21.0 21.0 17.0 23.0 18.0 17.0 21.0 18.0 17.0 22.0 19.0 21.0 24.0 22.0 21.0 25.0 23.0 24.0 24.0 21.0 20.0 26.0 28.0 24.0 22.0 27.0 23.0 23.0 22.0 21.0 24.0 21.0 19.0 25.0 22.0

Site Description Outer Ring (200 Series)

L-215-3 L-215-4 L-216-3 L-216-4 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.

Exelon Nuclear Environmental Site Report for LaSalle Gamma Radiation Measured in mR by TLDs Quarter 1 Quarter 2 2001 2001 20.0 21.0 20.0 20.0 19.7 +/-1.4 19.8 +/-1.3 17.0 17.0 17.0 +/-0.0 25.0 23.0 21.0 17.0 22.2 +/-1.8 22.0 +/-1.6 22.0 21.0 21.5 +/-0.7 111-38 Quarter 3 2001 22.0 19.0 19.0 18.0 18.9 +/-2.1 19.0 +/-2.1 18.0 18.0 18.0 +/-0.0 Quarter 4 2001 26.0 23.0 15.0 17.0 22.0 +/-3.0 20.7 +/-2.6 22.0 +/-2.5 20.7 +/-2.3 17.0 20.0 18.5 +/-2.1 18.8 +/-0.0

LASALLE 5.0 GRAPHS OF DATA TRENDS III-39

Air Particulates - Gross Beta L-01 Nearsite No. 1 10.0 8.0 6.0 4.0 2.0 0.0 4 1 i i I I

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

L-03 Onsite No. 3 10 8

6 4

2 111-40 c-J M

U-U

'--4 0

I I

i I

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

Air Particulates - Gross Beta L-05 Onsite No. 5 No sample; power out 0 i I

I I

12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30 Figure 3. Continuous collection with weekly exchange of particulate filter.

L-06 Nearsite No. 6 1-01 No filter due to pump malfunction 111-41 10 8

Uo 6

4 2

10 8

Co CD 6

4 2

0 1 I

I 1

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

Air Particulates - Gross Beta L-1O (C) Streator 10 8

6 4

2 0 1 I

i I i 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 12-30-01 Figure 5. Continuous collection with weekly exchange of particulate filter.

III-42 U

CI C,,1ý

Surface Water - Gross Beta L-21 Illinois River at Seneca 12-31-97 12-31-98 12-31-99 12-30-00 Figure 6. Monthly composites of weekly collections.

L-40 Illinois River Downstream 111-43 10.0 8.0 6.0 4.0 2.0 0.0 1 12-31-96 12-30-01 10.0 8.0 6.0 4.0 2.0 0.0.1 12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 Figure 7. Monthly composites of weekly collections.

12-30-01

Surface Water-Tritium L-21(C) Illinois River at Seneca 12-31-97 12-31-98 12-31-99 12-30-00 Figure 8. Quarterly composites of weekly collections.

L-40 Illinois River Downstream I

I I

111-44 700 600 500 400 300 200 100 -

-J O.)

12-31-96 1

12-30-01 850 700 550 0 400 250 100-12-31-96 12-31-97 12-31-98 12-31-99 12-30-00 Figure 9. Quarterly composites of weekly collections.

12-30-01

.*t3

Well Water-Tritium L-27 LSCS Onsite Well at Station 500 T 400 +

300 t 200 +

100+

ot

-100

-200 12-31-96

/-\\/,--

\\7" 12-31-97 12-31-98 12-31-99 12-30-00 Figure 11. Quarterly collections.

L-28 Marseilles Well K

I I

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

IHI-45

0 12-30-01 500 -

400+

300+/-

200 -

100 0 I

-100

-200 12-31-96

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

January, 2001 through December, 2001

Appendix IV Interlaboratory Comparison Program Results Enviromental Incorporated Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of its quality control program in December 1971.

These programs are operated by agencies which supply environmental type samples (e.g., milk or water) containing concentrations of radionuclides known to the issuing agency but not to participant laboratories. The purpose of such a program is to provide an independent check on the laboratory's analytical procedures and to alert it to any possible problems.

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

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

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

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

Table IV-1.

Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA),

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

Concentration in pCi/Lb Lab Sample Date Control Code Type Collected Analysis ERA Resultc Limits Laboratory resultsd STW-897 STW-897 STW-900 STW-902 STW-902 STW-902 STW-903 STW-917 STW-917 STW-917 STW-917 STW-918 STW-918 STW-918 STW-918 STW-918 STW-918 STW-919 STW-919 STW-919 STW-919 STW-919 STW-920 STW-920 STW-920 Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Jan, 2001 Jan, 2001 Feb, 2001 Feb, 2001 Feb, 2001 Feb, 2001 Mar, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Apr, 2001 Jun, 2001 Jun, 2001 Jun, 2001 Jun, 2001 Jun, 2001 Jun, 2001 Jun, 2001 Water Jun, 2001 Uranium Gr. Alpha Gr. Beta 1-131 Ra-226 Ra-228 Uranium H-3 Gr. Alpha Ra-226 Ra-228 Uranium Co-60 Cs-134 Cs-137 Gr. Beta Sr-89 Sr-90 Ba-133 Co-60 Cs-134 Cs-137 Zn-65 Ra-226 Ra-228 55.7 +/-5.6 45.7+/-11.4 16.7_+/-5.0 28.3 +/-3.0 4.7+/-0.7 14.4 +/-3.6 20.4 +/- 3.0 17800.0 +/- 1780.0 56.0 +/- 14.0 17.7_+/-2.7 8.1 +/-2.0 15.6 +/-3.0 26.4 +/-5.0 16.9 +/-5.0 186.0 +/- 9.3 340.0 +/- 51.0 64.1 +/-5.0 33.8 +/-5.0 36.0 +/-5.0 46.8 +/-5.0 15.9 +/-5.0 197.0 +/- 9.9 36.2 +/-5.0 15.4 +/- 2.3 4.5 +/- 1.1 46.1 - 65.3 25.9 - 65.5 8.0-25.4 23.1 -33.5 3.4-5.9 8.2 - 20.6 15.2-25.6 14700.0 - 20900.0 31.8 - 80.2 13.1 - 22.3 4.6-11.6 10.4 - 20.8 17.7 - 35.1 8.2-25.6 170.0 - 202.0 252.0 - 428.0 55.5 - 72.8 25.1 - 42.5 27.3 - 44.7 38.1 - 55.5 7.2 - 24.6 180.0 - 214.0 27.5 - 44.9 11.4-19.4 2.6-6.5 49.0 +/- 1.0; 5.0 vi - 1 31.9 +/- 2.1; 4.4 25.3 +/- 2.7; 4.7 27.2 +/- 0.8; 2.8 4.0_+/-0.1;0.4 13.8 +/- 0.4; 1.4 17.0_+/-0.3; 1.7 17400.0 +/- 69.7; 2367.4 57.4 +/- 3.5; 7.8 13.5 +/- 0.4; 1.4 10.1 +/-_0.6;1.2 14.2 +/- 0.2; 1.4 27.9 +/- 1.4; 4.2 16.0 +/- 0.4; 2.3 195.4 +/- 1.5; 28.2 343.0 +/- 1.7;52.9 62.8 +/- 5.7; 8.5 34.2 +/- 1.6; 3.8 37.8 +/- 1.2; 5.6 49.9 +/- 0.7; 7.2 16.0 _+ 1.4; 2.7 208.0 +/- 1.7;30.0 37.8 +/- 0.7; 5.5 14.6 +/- 0.4; 1.5 6.2 +/-0.2;0.7

Table IV-1.

Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA),

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

Concentration in pCi/Lb Lab Sample Date Control Code Type Collected Analysis ERA Resultc Limits Laboratory resultsd Jul, 2001 Sr-89 31.2" 5.0 22.5 - 39.9 Delay in processing may have attributed to deviation.

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

19.8 +/- 1.5; 2.5 Jul, 2001 Sr-90 STW-921 STW-922 STW-922 STW-924 STW-931 STW-931 STW-931 STW-932 STW-933 STW-933 STW-933 STW-933 STW-934 STW-934 STW-934 STW-934 STW-934 STW-934 STW-935 STW-935 STW-938 STW-938 STW-938 STW-938 Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Water Jul, 2001 Jul, 2001 Aug, 2001 Sep, 2001 Sep, 2001 Sep, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Oct, 2001 Nov, 2001 Nov, 2001 Nov, 2001 Nov, 2001 Gr. Alpha Gr. Beta H-3 Ra-226 Ra-228 Uranium 1-131 Gr. Alpha Ra-226 Ra-228 Uranium Co-60 Cs-134 Cs-137 Gr. Beta Sr-89 Sr-90 Gr. Alpha Gr. Beta Ba-133 Co-60 Cs-134 Cs-137 25.9 +/-5.0 17.8 +/- 5.0 53.0 +/- 10.0 2730.0 +/- 356.0 10.8 +/- 1.6 9.0 +/- 2.2 13.1+/- 3.0 7.7 +/- 2.0 97.5 +/- 24.4 10.8 +/- 1.6 15.6 +/-3.9 37.2 +/-3.7 78.4 +/-5.0 54.1 +/-5.0 37.9 +/- 5.0 192.0 +/- 28.8 16.7_+/-5.0 7.7 +/-5.0 64.0 +/- 16.0 21.5 +/-5.0 69.3 +/- 6.9 59.7+/-_5.0 93.9 +/-5.0 42.0 +/- 5.0 IV1 -2 STW-921 Water 17.2 - 34.6 9.1 - 26.5 35.7 - 70.3 2110.0 - 3350.0 8.0 - 13.6 5.1 - 12.8 7.9 - 18.3 4.2 - 11.2 55.3 - 140.0 8.0 - 13.6 8.9 - 22.4 30.7-43.6 69.7 - 87.1 45.4 - 62.8 26.3 - 43.7 142.0 - 242.0 8.0 - 25.4

-1.0 - 16.4 36.5 - 91.5 12.8 - 30.2 57.5 - 81.1 51.0 - 68.4 85.2 - 103.0 33.3 - 50.7 26.3 +/- 1.1; 2.9 23.3 +/- 1.9; 3.4 48.5 +/- 4.6; 8.8 2680.0 +/- 41.9; 366.9 10.9 +/- 0.2; 1.1 9.7 +/- 1.1; 1.5 11.2_+/-_0.1;1.1 7.7 +/- 0.3; 0.8 82.2 +/- 4.0; 10.8 9.5+/- 1.2;1.5 17.0 +/- 0.8; 1.9 32.2 +/- 1.4; 3.5 82.4 +/- 0.9; 11.9 52.2 +/- 1.3; 7.6 39.4 +/- 0.6; 5.7 166.0 +/- 7.1 ;26.5 12.8 +/- 0.8; 1.5 6.8 +/- 0.7; 0.9 63.5 +/- 2.5; 8.1 26.0+/- 1.2;4.2 66.7 +/- 1.2; 9.7 59.3 +/- 0.6; 8.6 86.7_+/- 1.5; 12.6 45.0 +/- 1.0; 6.6

Table W-1.

Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA),

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

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

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

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

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

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

IV1-3

Table IV-2. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)'.

Concentration in Bq/kgb Lab Sample Date MAPEP Result' Control Laboratory results Code Type Collected Analysis Is, N=1 Limits

_ Standard Deviation' STSO-923 SOIL Jan, 2001 Am-241 0.0 - 2.6 Included in the testing series as a "false positive". No activity expected. Result of analysis; < 0.8 Bq/L.

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

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

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

IV2 - 1

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

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

42.1 +/- 7.7; 8.8 1,772.6 +/- 79.8; 194.4 583.8 +/- 52.6; 78.6 46.6 +/- 8.5; 9.7 45.3 +/- 8.6; 9.7 26.0 +/- 0.8; 2.7 55.6 +/- 2.2; 6.0 2.2 +/-_0.1; 0.3 97.0 +/- 0.8; 14.0 70.1 +/-_4.0; 10.9 76.5 +/- 5.5; 11.8 1.7+/- 0.1; 0.2 1.7+/- 0.1; 0.2 3.9 +/-0.1; 0.4 0.9 +/-0.1; 0.1 0.9 +/-0.1; 0.1 1,724.6 +/- 141.7; 253.7 1,246.4+/-31.1; 194.4 0.5 +/- 0.0; 0.1 20.1 +/- 0.2; 2.0 2.7 +/- 0.2; 0.3 9.9 +/- 0.2; 1.0 7.3 +/- 0.2; 0.8 0.2 +/- 0.0; 0.0 0.1 +/- 0.0; 0.0 7.4 +/- 0.2; 0.8 0.1 +/- 0.0; 0.0 0.1 +/- 0.0; 0.0 2.7 +/- 0.0; 0.3 2.3 +/- 0.0; 0.2 32.6+/- 1.4 1,740.0 +/- 90.0 468.0 +/- 25.0 41.5 +/-2.2 34.3 +/- 1.6 25.6 +/- 0.7 69.0 +/-5.7 1.7_+/-0.1 98.2 +/-3.6 73.0 +/-3.7 79.3 +/-2.0 1.6 +/-_0.1 1.6_+/-0.1 4.4 +/- 0.2 1.0 +/- 0.1 1.0 +/- 0.0 1,900.0 +/- 190.0 1,297.0 +/- 100.0 0.5 +/-0.0 19.4_+/-0.5 2.8 +/- 0.2 8.8 +/- 0.3 6.5 +/- 0.3 0.2 +/- 0.0 0.1 +/-0.0 7.1 +/-0.2 0.0 +/-0.0 0.0 +/- 0.0 4.0 +/-0.3 2.6+/-0.2 0.8 - 1.5 0.6 - 2.6 0.5 - 1.2 a probable cause 0.8-1.5 0.8-1.3 0.8-1.4 0.7 - 1.4 0.8 - 1.5 0.7-1.3 0.6-3.9 0.8-1.5 0.8 - 1.2 0.8-1.2 0.7-2.3 0.7-1.2 0.8 - 1.3 0.6-1.5 0.8 - 1.4 0.8-1.3 0.6-1.3 0.6-1.5 0.7 - 2.4 0.8 - 1.3 0.7-1.2 0.8 - 1.4 0.8 - 1.4 0.7-1.4 0.7 - 1.3 0.6-2.1 0.8 - 1.9 0.8 - 1.6 0.6-1.5 0.8-1.5 STSO-904 STSO-904 STSO-904 STSO-904 STSO-904 STSO-904 STSO-904 STW-905 STW-905 STW-905 STW-905 STW-905 STW-905 STW-905 STW-905 STW-905 STW-906 STW-906 STAP-907 STAP-907 STAP-907 STAP-907 STAP-907 STAP-907 STAP-907 STAP-907 STAP-907 STAP-907 STAP-908 STAP-908 Soil Soil Soil Soil Soil Soil Soil Water Water Water Water Water Water Water Water Water Water Water Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Air Filter Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Mar, 2001 Bi-214 Cs-137 K-40 Pb-212 Pb-214 Pu-239/40 Sr-90 Am-241 Co-60 Cs-137 H-3 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Gr. Alpha Gr. Beta Am-241 Co-60 Cs-134 Cs-137 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Gr. Alpha Gr. Beta IV3 - 1

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

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

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

Concentration in Bq/Lb Lab Sample Date Control Code Type Collected Analysis Laboratory Resultc EML Resultd Limits' STVE-928 Vegetation Sep, 2001 Sr-90 1,364.0 +/- 18.4; 137.6 1,612.8 +/-_48.6 0.5 - 1.2 STAP-929 Air Filter Sep, 2001 Am-241 0.1 +/- 30.0; 30.0 0.1 +/-0.0 0.7-2.4 STAP-929 Air Filter Sep, 2001 Co-60 16.9_+/-0.3; 1.7 17.5 +/-0.5 0.8-1.3 STAP-929 Air Filter Sep, 2001 Cs-134 11.8 +/- 0.2; 1.2 13.0_+/-0.4 0.7 - 1.2 STAP-929 Air Filter Sep, 2001 Cs-137 18.3 +/- 0.3; 1.9 17.1 +/-0.6 0.8-1.4 STAP-929 Air Filter Sep, 2001 Mn-54 85.4 +/- 1.3; 8.6 81.2 +/-4.8 0.8 - 1.4 STAP-929 Air Filter Sep, 2001 Pu-238 0.1 +/- 0.0; 0.0 0.1 +/-0.0 0.7 - 1.4 STAP-929 Air Filter Sep, 2001 Pu-239/40 0.2 +/- 0.0; 0.0 0.2 +/- 0.0 0.7 - 1.3 STAP-929 Air Filter Sep, 2001 Sr-90 3.1 +/- 0.1; 0.3 3.5 +/-0.2 0.6 - 2.1 STAP-929 Air Filter Sep, 2001 Uranium 0.2+/- 0.1; 0.1 0.2+/-0.0 0.8 -2.5 STAP-930 Air Filter Sep, 2001 Gr. Alpha 6.3 +/- 0.1; 0.6 5.4+/-0.5 0.6-1.5 STAP-930 Air Filter Sep, 2001 Gr. Beta 13.8 +/- 0.1; 1.4 12.8 +/-1.3 0.8-1.5 SThe Environmental Measurements Laboratory provides the following nuclear species Air Filters,

Soil, Vegetation and Water.

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

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

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

IV3 -3

LASALLE APPENDIX V ERRATA DATA V-i

From previous LaSalle Radiological Environmental Operating Reports:

Figure 5.0 Inner Ring TLD Locations Administrative error:

TLD designator 113-1 becomes 112-1 TLD designator 113-2 becomes 112-2 (see attached for an example of the mark-up pages)

Figure 5.0 Outer Ring TLD Locations Administrative error:

TLD designator 213-3 becomes 214-3.

(see attached for an example of the mark-up pages)

Table 5.0 Radiological Environmental Monitoring Program, Sampling Locations Administrative error:

Air Sampler Location for L-04 becomes Far Field No. 4 V-2

Figure 5.0-1 I.

IA

@1

.a tJmu 1*

18 U

I-LASALLIE COUNTY STATION fl4NER RT LC TLD MOATIO14S Corrected designators:

112-2 112-1 V-3

Figure 5.0-2 21540 21543.

21$.40 2134.a a 21141 Grind RUIdg

.8211-2 Corre'cted designator:

214-3 K~ma U. *.1?. ImAIII4i a

ujujw;wsi vutmj 7L'D LOCaIUM LASALU CoUnTY STATION aUra RPVG1WLWCA'n V-4 uHa Banemm ccnme 2. Obtla #%A Unnew in %M-Ifv

ML021500487

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