ML003709654

Annual Radiological Environmental Operating Report for 1999

ML003709654
Person / Time
Site:	Dresden
Issue date:	04/28/2000
From:	Swafford P Commonwealth Edison Co
To:	NRC/OCIO/IMD/RMB
References
+sunsi/sispmjr=200603, -RFPFR, FOIA/PA-2006-0130, PSLTR: #00-0076
Download: ML003709654 (158)

Text

( il' (':1[/ !.li-,.)1 Oll o lpany Drcsdeni (cocrrating StatiOnl 6500 North Dresden Road Morris, IL 604"50 Tel 815-942-2920 10 CFR 50 Appendix I April 28, 2000 PSLTR: #00-0076 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Dresden Nuclear Power Station Units 1, 2, and 3 Facility Operating Licenses DPR-02, DPR-1 9, and DPR-25 Docket Numbers50-010, 50-237, and 50-249

Subject:

Dresden Nuclear Power Station Annual Radiological Environmental Operating Report for 1999 The purpose of this letter is submit the Commonwealth Edison (ComEd) Company Dresden Nuclear Power Station Annual Radiological Environmental Operating Report. This report provides the results of the radiological environmental and meteorological monitoring programs for the 1999 calendar year, and is submitted in accordance with Section 6.9.A.3 of the Dresden Nuclear Power Station Technical Specifications.

If you have any questions concerning this report, please refer them to Mr. Dale Ambler, Dresden Station Regulatory Assurance Manager, at (815) 942-2920, extension 3800. Respectfully, Preston Sw/aff~ord( Site Vice President Dresden Nuclear Power Station Enclosure cc: Regional Administrator

-NRC Region III NRC Senior Resident -Dresden Nuclear Power Station A Unicorn Company Cool DRESDEN STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT 1999 APRIL 2000 TABLE OF CONTENTS Page IN TR OD U CTION ..............................................................................................................................

I SU M M ARY .......................................................................................................................................

2 1.0 EFFLUENTS 1.1 G aseous Effluents to the A tm osphere ....................................................................................

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

3 2.0 SO LID RAD IOA CTIV E W A STE .....................................................................................................

.3 3.0 DOSE TO MAN 3.1 G aseous Effluent Pathw ays ....................................................................................................

3 3.1.1 N oble G ases ....................................................................................................................

3 3.1.1.1 Gamma Dose Rates ...........................................

4 3.1.1.2 Beta A ir and Skin D ose Rates ........................................................................

4 3.1.2 Radioactive Iodine .........................................................................................................

4 3.1.2.1 Iodine Concentrations in A ir .........................................................................

5 3.1.2.2 D ose to Thyroid ............................................................................................

5 3.1.3 Concentrations of Particulates in A ir ............................................................................

5 3.2 Liquid Effluent Pathw ays ........................................................................................................

.5 3.3 A ssessm ent of D ose to M em ber of Public ..............................................................................

5 4.0 SITE M ETEO RO LO GY .....................................................................................................................

6 5.0 EN V IRON M EN TA L M ON ITO RIN G ...............................................................................................

6 5.1 G am m a Radiation

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

6 5.2 A irborne I- 131 and Particulate Radioactivity

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

7 5.3 Terrestrial A ctivity ...................................................................................................................

7 5.4 A quatic Radioactivity

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

7 5.5 M ilk ..........................................................................................................................................

8 5.6 Special Collections

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

8 5.7 Listing of M issed Sam ples .......................................................................................................

8 5.8 Program M odifications

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

8 6.0 AN A LY TICA L PRO CEDU RES .......................................................................................................

.8 7.0 MILCH ANIMALS AND NEAREST CATTLE CENSUSES ...........................................................

9 8.0 N EA REST RESID EN CE CEN SU S ...................................................................................................

.9 9.0 D RED G E SPO ILS CEN SU S ..............................................................................................................

9 10.0 INTERLABORATORY COMPARISON PROGRAM RESULTS ....................................................

9 11.0 ERRA TA D A TA .................................................................................................................................

9 ii TABLE OF CONTENTS (continued)

Page APPENDIX I -DATA TABLES AND FIGURES ........................................................................................

I-1 Station Releases Table 1.1-1 Table 1.2-1 Figure 3.0-1 Table 3.1 -1 Table 3.2-1 Table 3.3-1 Table 3.4-1 Gaseous Effluents

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

Liquid Effluents

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

-Figure 3.0-4 Isodose and Concentration Contours ........................................................

Maximum Doses Resulting from Airborne Releases ...............................

Maximum Doses Resulting from Liquid Effluents

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

1 OCFR20 Compliance Assessment

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

Maximum Doses Resulting from Airborne Releases Based on Concurrent M eteorological Data .........................................................

1-2 1-3 1-4 1-8 1-20 1-32 1-38 Environmental Monitoring Figure 5.0-1 Figure 5.0-2 Table 5.0-1 Table 5.0-2 Table 5.0-3 -Fixed Air Sampling and TLD Sites, Milk and Outer Ring TLD Locations

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

Inner Ring TLD Sites, Near Station Water, Sediment and Fish Sam pling Locations

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

Radiological Environmental Monitoring Locations

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

Radiological Environmental Monitoring Program Sampling Locations and Sample Collection and A nalyses ...................................................................................................

Table 5.0-6 Radiological Environmental Monitoring Program Quarterly Summary ..................................................................................

APPENDIX II -METEOROLOGICAL DATA ............................................................................................

APPENDIX III -1999 REMP SAMPLE RESULTS .....................................................................................

1-41 1-42 1-43 1-44 1-50 II- I III-1 APPENDIX IV -INTERLABORATORY COMPARISON PROGRAM RESULTS ...................................

IV-I APPENDIX V -ERRATA DATA (If applicable)

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

V-1 iii INTRODUCTION The Dresden Station is located approximately twelve miles southwest of Joliet, Illinois at the confluence of the Des Plaines and Kankakee Rivers where they form the Illinois River. This station uses two boiling water reactors (G.E. design) to generate electricity.

Unit 1, which began operating in 1960 and had a rated power output of 200 megawatts electrical (MWe), was shut down on August 31, 1984 and is currently being decommissioned.

Units 2 and 3 began operating in 1970 and 1971, respectively, each with a net rated power output of 809 MWe. Liquid radwaste from Unit 1 is transferred to Units 2 and 3 for collective processing and discharge.

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

Airborne concentrations of noble gases, 1-131, and particulate radioactivity in offsite areas are calculated using isotopic composition of control effluent and meteorological data. Environmental monitoring is conducted by sampling at indicator and control (background) locations in the vicinity of the Dresden Station to measure changes in radiation or radioactivity levels that may be attributable to station operation.

If significant changes attributable to Dresden are measured, these changes are correlated with effluent releases.

External gamma radiation exposure from turbine shine and released noble gases and internal dose from 1-131 in milk are the critical pathways at this site; however, a comprehensive environmental monitoring program is conducted which includes many other pathways which are less significant in terms of radiation protection.

1

SUMMARY

Calculations based on gaseous and liquid effluents, Illinois River flow, meteorological data and hydrogen addition activities indicate that public dose due to radioactive material attributable to Dresden Station during the period does not exceed regulatory or Offsite Dose Calculation Manual (ODCM) limits. The Total Effective Dose Equivalent (TEDE) due to licensed activities at Dresden Station calculated for the maximally-exposed individual for the period is 6.27 mrem. The annual limit on TEDE is 100 mrem. This value is largely dominated by the direct radiation constituent from the Unit 2 and Unit 3 turbines (6.24 mrem). The balance of the calculated maximum dose (0.03 mrem) is due to exposure from radionuclides released from the Station in liquid and gaseous effluents.

The assessment of radiation doses to the public is performed in accordance with the ODCM. The results of these analyses confirm that the Station is operating in compliance with 1OCFR50 Appendix I, 10CFR20 and 1OCFR190.2 1.0 EFFLUENTS 1.1 Gaseous Effluents to the Atmosphere Measured concentrations and isotopic composition of noble gases, radioiodine, and particulate radioactivity released in gaseous effluents to the atmosphere during the year are listed in Table 1.1-1. A total of 1.26E+02 curies of noble gases with a maximum quarterly average release rate of 4.91 E+00 VtCi/sec was released from Dresden Units 1, 2 and 3. A total of 5.20E-03 curies of 1-131 was released during the year with a maximum quarterly average release rate of 1.86E-04 [LCi/sec.

A total of 1.21E-02 curies of beta-gamma emitters was released as airborne particulate matter with a maximum quarterly average release rate of 7.91E-04 VCi/sec. Alpha emitting radionuclides totaled 2.42E-05 curies. Also, 3.41E+01 curies of tritium were released with a maximum quarterly average release rate of 2.13E+00 VCi/sec.

1.2 Liquids Released to Illinois River A total of 1.64E+07 liters of radioactive liquid wastes containing 3.77E-01 curies of fission and activation products (excluding tritium, noble gases and gross alpha) was discharged from the station. These wastes were released at a maximum quarterly average diluted concentration of 4.50E-07 VCi/ml from all units. During the same period, 7.71E+01 curies of tritium were released with a maximum quarterly average diluted concentration of 3.71E-05 VtCi/ml. Alpha emitting radionuclides were below detectable levels for normal releases.

Quarterly release values are given in Table 1.2-1. 2.0 SOLID RADIOACTIVE WASTE Solid radioactive wastes were shipped to CNSI, Barnwell, South Carolina; AERC, ATG and GTS, Oak Ridge, Tennessee; GTS, Memphis, Tennessee and ATG, Richland, Washington.

For more detail, refer to the Dresden Station 1999 Effluent Report. 3.0 DOSE TO MAN 3.1 Gaseous Effluent Pathways 3.1.1 Noble Gases To demonstrate compliance with the applicable regulations regarding public radiation dose due to gaseous effluents from Dresden Station, two methods are reported in the following sections.

Both methods employ measured isotopic composition and release rates from the station.

Assumed "average meteorological data" are used in ODCM-required calculations.

These data use a ten-year average (1/1/1978-12/31/1987) for Dresden Station. Actual "concurrent meteorological data" correlate quarterly release information with actual meteorological data for the period.3 3.1.1.1 Gamma Dose Rates Offsite gamma air and total body doses are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic composition of the noble gases, and average meteorological data for the period. Doses based on concurrent meteorological data are shown in Table 3.4-1. Isodose contours based on concurrent meteorological data for gamma dose are shown in Figure 3.1-1. Based on measured effluents and average meteorological data, the maximum total body dose to an individual is calculated to be 1.78E-03 mrem (Table 3.1-1) for the year, with an occupancy or shielding factor of 0.7 included.

The maximum total body dose based on measured effluents and concurrent meteorological data would be 1.14E-02 mrem (Table 3.4-1). The maximum gamma air dose based on measured effluents and average meteorological data was 2.35E-03 mrad (Table 3.1-1) and 4.18E-03 mrad based on concurrent meteorological data (Table 3.4-1). 3.1.1.2 Beta Air and Skin Dose Rates The range of beta particles in air is relatively small (on the order of a few meters or less); consequently, plumes of gaseous effluents may be considered "infinite" for the purpose of calculating the dose from beta radiation incident on the skin. However, the actual dose to sensitive skin tissues is difficult to calculate due to the effect of the beta particle energies, thickness of inert skin, and clothing covering sensitive tissues.

For purposes of this report the skin is assumed to have a thickness of 0.07 mm and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation based on measured effluents and average meteorological data for the year was 1.96E-03 mrem (Table 3.1-1) and 1.39E-03 mrem based on concurrent meteorological data (Table 3.4-1). The air concentrations of radioactive noble gases at the offsite receptor locations are given in Figure 3.1-2. The maximum offsite beta air dose based on measured effluents and average meteorological data for the year was 1.66E-04 mrad (Table 3.1-1) and 7.11E-04 mrad based on concurrent meteorological data (Table 3.4-1). 3.1.2 Radioactive Iodine The human thyroid exhibits a significant capacity to concentrate ingested or inhaled iodine. The radioiodine, 1-131, released during routine operation of the station, may be made available to man resulting in a dose to the thyroid. The principal pathway of interest for this radionuclide is ingestion of radioiodine in milk. Calculations made in previous years indicate that contributions to doses from inhalation of 1-131 and 1-133 and from ingestion of 1-133 in milk are negligible.

4 3.1.2.1 Iodine Concentrations in Air The calculated concentration contours for iodine in air are shown in Figure 3.1-3. These calculations include an iodine cloud depletion factor which accounts for the phenomenon of elemental iodine deposition on the ground. The maximum iodine offsite average concentration is estimated to be 1.08-03 pCi/m 3 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 is calculated to be 4.46E-02 mrem during the year (Table 3.1-1 [child]).

3.1.3 Concentrations of Particulates in Air Concentration contours of radioactive airborne particulates are shown in Figure 3.1-4. The maximum offsite average concentration is estimated to be 4.05E-04 pCi/in 3 (Table 3.4-1). 3.2 Liquid Effluent Pathways The three principal pathways for potential dose to man from liquid waste effluents are ingestion of potable water, ingesting aquatic foods, and exposure while on the shoreline.

Not all of these pathways are applicable at a given time or station, but a reasonable approximation of the dose can be made by adjusting the dose formula for season of the year or type and degree of use of the aquatic environment.

NRC developed equations*

were used to calculate the doses to the whole body, lower GI tract, thyroid, bone and skin; specific parameters for use in the equations are given in the CornEd Offsite Dose Calculation Manual. The maximum whole body dose and organ dose for the year was 4.66E-03 mrem (child) and 1.64-02 mrem (adult), respectively (Table 3.2-1). 3.3 Assessment of Dose to Member of Public During the period January to December, 1999, Dresden Station did not exceed the following limits as shown in Table 3.1-1 and Table 3.2-1 ( based on average meteorological data) and as shown in Figure 3.1-1 ( based on concurrent meteorological data):

• Nuclear Regulatory Commission, Regulatory Guide 1.109 (Rev. 1).5 The RETS limits on dose or dose commitment to a member of the public due to radioactive materials in liquid effluents from each reactor unit (3 mrem to the whole body or 10 mrem to any organ during any calendar quarter; 6 mrem to the whole body or 20 mrem to any organ during any calendar year). The RETS limits on air dose in noble gases released in gaseous effluents to a member of the public from each reactor unit (5 mrad for gamma radiation or 10 mrad for beta radiation during any calendar quarter; 10 mrad for gamma radiation or 20 mrad for beta radiation during any calendar year). The RETS limits on dose to a member of the public due to Iodine- 131, Iodine-133, tritium, and radionuclides in particulate form with half-lives greater than 8 days in gaseous effluents released from each reactor unit (7.5 mrem to any organ during any calendar quarter; 15 mrem to any organ during any calendar year). The 1OCFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem) from the site. 4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix II. The data are presented as cumulative joint frequency distributions of the wind direction for the 300' level and wind speed class by atmospheric stability class determined from the temperature difference between the 300' and 35' levels. Data recovery for all measurements on the tower was 99.9% during 1999 (Table 3.4-1) 5.0 ENVIRONMENTAL MONITORING Table 5.0-1 and Table 5.0-2 provide an outline of the Radiological Environmental Monitoring Program (REMP) as required in the ODCM. Tables 5.0-3 to 5.0-6 summarize data for the year by quarter. A detailed listing of all data is given in Appendix III. Specific findings for various environmental media are discussed below. 5.1 Gamma Radiation External radiation dose from onsite sources and noble gases released to the atmosphere was measured using CaSO4:Dy thermoluminescent dosimeters (TLDs). Each location consists of 2 TLD sets. Quarterly average external radiation dose for the year was 16.9 +/- 2.1 mR at indicator locations and 14.5 +/- 1.0 mR at control locations.

TLD results are listed in Table 4.0 in Appendix III and locations are shown in Figures 5.0-1 and 5.0-2. Quarterly external radiation dose at indicator air sampling locations averaged 16.3 +/1.6 mR and was similar to that measured in 1985 (13.5 mR), 1986 (14.4 mR), 1987 6 (15.8 mR), 1988 (14.9 mR), 1989 (15.7 mR), 1990 (14.9 mR), 1991 (14.0 niR), 1992 (15.6 mR), 1993 (15.5 mR), 1994 (14.7 mR), 1995 (14.1 mR), 1996 (13.0 mR) and 1997 (15.7 mR) and 1998 (17.2 mR). The differences are not statistically significant.

5.2 Airborne 1-131 and Particulate Radioactivity Locations of the samplers are shown in Figure 5.0-1. Airborne 1-131 remained below the LLD of 0.07 pCi/m3 throughout the year in all analyzed samples.

Gross beta concentrations ranged from 0.9E-02 to 5.OE-02 pCi/m 3 and averaged 2.5E 02 pCi/mr 3 , and were similar to those in 1983 (2.0E-02 pCi/m 3), 1984 (2.0E-02 pCi/m3), 1985 (2.0E-02 pCi/m 3), 1986 (2.5E-02 pCi/m 3), (except for the period from May 17 through June 7 when it was influenced by the nuclear reactor accident at Chernobyl), 1987 (2.4E-02 pCi/m 3), 1988 (2.7E-02 pCi/m 3), 1989 (2.4E-02 pCi/m 3), 1990 (2.OE 02 pCi/m 3), 1991 (2.OE-02 pCi/mr), 1992 (2.2E-02 pCi/m 3), 1993 (2.1E-02 pCi/m3), 1994 (2.0E-02 pCi/m 3), 1995 (2.2E-02 pCi/m 3), 1996 (2.2E-02 pCi/m3) and 1997 (2.3E-02 pCi/m3 ) and 1998 (2.4E-02 pCi/m 3). Quarterly gamma isotopic results were below the LLD level of 0.01 pCi/m3. No radioactivity attributable to station operation was detected in any sample. 5.3 Terrestrial Activity Vegetables were collected in September and analyzed for gamma-emitting nuclides.

In addition, broad leaf vegetables were analyzed for 1-131. All nuclides were below the limits of detection, indicating that there was no measurable amount of radioactivity attributable to the station releases.

5.4 Aquatic Radioactivity Surface water samples were collected weekly from two locations, shown in Figure 5.0 2, and composited monthly for gross beta and gamma-emmiters.

Quarterly composites were analyzed for tritium. Cs-134 and Cs-137 levels were below the detection limit of 15 and 18 pCi/L, respectively.

All other gamma emitters were below their respective LLDs in all samples collected during the year. Gross beta at D-51 (Dresden Lock & Dam) averaged 5.2 pCi/L with a range of 2.6 to 9.1 pCi/L; D-52 (DesPlaines River) gross beta averaged 6.4 pCi/L with a range of 4.0 to 9.4 pCi/L. Tritium concentration was below the LLD of 200 pCi/L in all samples collected from D-52 (DesPlaines River); D-51 (Dresden Lock & Dam) averaged 382 pCi/L with a range of 282 to 602 pCi/L. Well water samples were collected quarterly and analyzed for tritium and gamma emitting nuclides.

Gamma-emmiters were below LLD for all samples during the year;7 tritium activity at D-35 (Dresden Lock & Dam) was also below LLD. Tritium activity at D-23 (Thorsen Well) averaged 392 pCi/L with a second quarter high of 411 pCi/L. Levels of gamma radioactivity in fish samples were measured and found in all cases to be below the lower limits of detection for the program. The results were similar to those obtained in 1983 through 1998. Sediment samples were collected twice and analyzed by gamma spectroscopy.

The levels of Cs-134 and Cs-137 were below the LLD levels of 0.15 and 0.18 pCi/g dry weight, respectively.

Other gamma emitters were below their respective LLDs for the program.

Fish, sediment and water locations are shown in Figure 5.0-2. 5.5 Milk Milk sample locations are shown in Figure 5.0-1. Milk samples were collected biweekly during the grazing season (May through October) and monthly during the balance of the year from the Vince Biros Farm (D-25). 1-131 was determined for each sample by chemical separation of 1-131 and beta counting.

1-131 remained below the ODCM-required detection limits of 5.0 pCi/L during the non-grazing period (November through April) and 0.5 pCi/L during the grazing period (May through October).

The results were similar to those obtained during the 1983 1998 period except for samples collected during the second and third quarters of 1986. 1-131 detected in milk samples during this period is attributable to the nuclear accident at Chernobyl.

5.6 Special Collections In June, 1994, elevated tritium levels were discovered in the onsite storm sewers. A special program was initiated to identify, locate, and correct the source or sources of radioactivity.

Numerous wells have been drilled, and sampling and analysis from those wells and the storm sewers continues.

Results of the 1999 sampling program are available for inspection at the Station.

5.7 Listing of Missed Samples All samples were collected as scheduled except for those listed in Listing of Missed Samples, Appendix III. 5.8 Program Modifications There were no modifications to the program in 1999. 6.0 ANALYTICAL PROCEDURES Procedures used during the period covered in this report remained essentially unchanged.

A summary of the procedures used for analyzing radioactivity in environmental samples is given in Appendix VI of the report for the period January -December 1993.8 7.0 MILCH ANIMALS AND NEAREST CATTLE CENSUS Census of milch animals and nearest cattle were conducted within a 6.2-mile radius of the station. The survey was conducted by "door-to-door" canvas by A. Lewis on August 31, 1999. Results of the milch animal and nearest cattle census are presented on pages 35 and 36 of Appendix III. There are no dairy farms within a 6.2-mile radius of the Dresden Nuclear Power Station.

8.0 NEAREST RESIDENCES CENSUS The nearest resident census was conducted by A. Lewis on August 31, 1999. Results of the nearest resident census are presented page 37 of Appendix III. 9.0 DREDGE SPOILS CENSUS According to the Army Corp. of Engineers in August 1999, there was no dredging done in the past year. The nearest location to the station for dredge spoils can be found on page 38 of Appendix III. 10.0 INTERLABORATORY COMPARISON PROGRAM RESULTS Teledyne's Interlaboratory Comparison Program Results are presented in Appendix IV. 11.0 ERRATA DATA There are no errata data for 1999.9 DRESDEN APPENDIX I DATA TABLES AND FIGURES I-1 Table 1.1-1 DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through June 1999 DOCKET NUMBERS: 50-010/50-237/50-249 SUMMATION OF ALL GASEOUS RELEASES U ITS ,srQuate 2 Q uate Estr. T A. FISSION & ACTIVATION GASES 1, Total Release Ci 2.56,+O1 3.02E+01 7.31% 2. Average Release Rate for the Period IiCi/sec 3.29E+00 3.84E+0 3. Percent of Technical Spec cation Limit % *

• B. IODINES 1. Total Iodine-131 Ci 1.25E-03 1.08E-03 21.6% 2. Aveae Release Rate ofl-131 for the Period Cl/sec 1.61E-04 1.37E-04 3. Percent of Technical Speci"cation Limit % *

• 4. Total Iodine-131, Iodine-133 and Iodine-135 Ci 1.85E-02 1.20E-02 C. PARTICULATES

1. Particulateswithlhalf-lives

>8days Ci 6.15E-03 1.14E-03 34.1% 2. Average Release Rate for the Period uCi/sec 7.91E-04 1.45E-04 3. Percent of Technical Spe.ification Limit %* 4. Gross Alpha Radioactivity Ci 5.23E-06 4.78E-06 D. TRITIUM 1. Total Release Ci 3.97E+00 7.37E+0O " 7.89% 2. Average Release Rate for the Period ICi/sec 5.11E-01 9.37E-01I

3. Percent ofTechnScal ifiation Limit % *

• July Through December 1999 U NM T 3' t O u ar e E st Tuarte A. FISSION & ACTIVATION GASES 1. Total Release Ci 3.I1E+0I 3.90E+01 7.31% 2. Average Release Rate for the Period pCi/sec 3.91E+00 4.91E+100

3. Percent of Technical Specification Limit %

• B. IODINES 1. TotalIodine-131 Ci 1.39E-03 1,48E-03 21.6% I 2. Average Release Rate of 1-131 for the Period 1Ci/sec 1.74E-04 1.86E-04 3. Percent of Technical Specification Limit % *

• 4. Total Iodine-131, Iodine-133 and Iodine-135 Ci 4.55E-02 5.24E-02 C. PARTICULATES

i. Particulates with half-lives

>8 days Ci 2.12E-03 2.70E-03 34.1%2. Average Release Rate for the Period 3. Percent of Technical Specification Limit 4. Gross Alpha Radioactivity I I -I I ~ ~ I ýD. TRITIUM 1. Total Release Ci 5.85E+00 1.69E+01 7.89% 2. Average Rease Rate for the Period KCi/sec 7.36E-01 2.13E+00 3. Percent of Technical Specification Limit %* *The information is contained in the Radiological Impact on Man section of the report. Total airborne release data are provided which include fission and activation gases, iodines, particulates, tritium.1-2 1,-, I I t A O-za ,, 0/-I-) 6"/C-U.,q.uJP_,-UR' v

Table 1.2-1 DRESDEN NUCLEAR POWER STATION UNITS 1, 2 AND 3 RADIOACTIVE EFFLUENT RELEASE REPORT January Through June 1999 DOCKET NUMBERS: 50-010/50-237/50-249 SUMMATION OF ALL LIQUID RELEASES UNITS lST Ourtr 2'O Ester Error,% A. FISSION & ACTIVATION PRODUCTS 1. Total Release (not including H-3, gases a!pha Ci 7.86E-03 3.43E-01 10.6% 2. Averagte Diluted Cone. During Period p~/i 7.88E-09 4.50E-07 3. Percent of Technical Specification Limidt %** B. TRITIUM 1. Total Release Ci 1.48E+01 1.48E+01 11.4% 2. Average Diluted Conc. During Release uCvdm 1.49E-05 1.93E-05 3. Percent of Technical Specification Limit %*

• C. DISSOLVED AND ENTRAINED GASES 1. Total Release Ci 1.49E-04 <LLD 5.58% 2. Average Diluted Conc. During Period pCi/mni 1.50E-10 <LLD I 3. Percent of Technical Specification Limit % *

• D. GROSS ALPHA ACTIVITY 1. Total Release Ci -LW <LLD 15.1%:1 E. VOLUME OF WASTE RELEASED (prior to dilution)

Liters 5.23E+06 3.97E+06 5.00% F. VOLUME OF DILUTION WATER USED I Liters 9.92E+08 7.60E+08 S.00% DURING PERIOD 0 I I July Through December 1999 UNITS 3r GusQer 4h Ouartr Et. Tot Error. A. FISSION & ACTIVATION PRODUCTS 1. Total Release (not including H-3, gases, alpha) Ci 1.74E-02 8.50E-03 10.6% 2. Average Diluted Conc. During Period 1aCi/ml 3.16E-08 9.45E-09 3. Percent of Technical Specification Limit % *

• B. TRITIUM 1. Total Release Ci 1.41E+01 3.34E+01 11.4% 2. Average Diluted Conc. During Release tCi/mi 2.57E-05 3.71E-05 3. Percent of Technical Specification Limit % *

• C. DISSOLVED AND ENTRAINED GASES 1. Total Release Ci 2.88E-06 7.08F,-05 5.58%h 2. Average Diluted Cone. During Period pCiVml 5.23E-12 7.87E-11 3. Percent of Technical Specification Limit % *

• D. GROSS ALPHA ACTIVITY 1. Total Release Ci <LLD <LID 15.1% E. VOLUME OF WASTE RELEASED (prior to dilution)

Liters 2.66E+06 4.58E+06 5.00% F. VOLUME OF DILUTION WATER USED Liters 3.4E+08 8.95E+0 DURING PERIODI 1-3*The information is contained in the Radiological Impact on Man section of the report.

Figure 3.0-1 150 Estimated Cumulative.Gamma Dose (in mrem) from the Dresden Station for the period January-December 1999 Isopleth Labels1 Small figure -multiply by 10-5 Large figure -multiply by I Cr. SCALE 0 2 3MILES ____I ___I IKM K N D A L L SU.S, 52 11 1 05 t 0 C w I, L Gio ftan 1 -..10 ir oI S r --150 S, IftW ILL.113 it hK imiN to S' ALE *1-4 10 15 25 30 KM Figure 3.0-2 Estimated Total Concentrations (in pCiim3) of Noble Gases from the Dresden Station for the period January-December 1999 Small figure -multiply by 10-3 Large figure -multiply by 10.3 SCALE mn MILES 0 I 2 3 t I ! I I Ki SCALE 0 5 10 13 20 MILES 2 25 30 KM 1-5 Figure 3.0-3 I10 Estimated Total Concentrations (in pCi/m3) of lodines from the Dresden Station for the period January-December 1999 Small figure -multiply by 10-5 Large figure -multiply by 10" SCALE ? MILES 0 2 3 " IM MLCSM K0 E N D L L Lo P. C 0 Li 4. B6~lW Wimi-t8 A 100 9w LI 500CALElo tOsl OMO(1-6 I 1 10 !2 ----- 25 ------ -- !40 K 30 Figure 3.0-4 Estimated Total Concentrations (in pCi/m3) of Particulates from the Dresden Station for ihe period January-December 1999 VA Small figure -multiply by 10"a Large figure -multiply by 10. SCALE 9 -? MILES 2 3 ., ,Wm gon K A IIL. Ii 0~~~~6 5 0I 2 IE " ( kville K E N A L L"-I- lo w meco~~W P.L C.Cty SMo zo n P SIT 100 0 ILL. 143 C0 ti mi to $ 0 oz'" I' S,' 51 BridI 1-7 5 19 15 30 XM i5,-.7iCs ii Al oh1 H RI Ii I I I dd> 0 0 0000 og8..VN 00000q 0 ) 00000 4U zo I II I Bill El Ii M I U AAi 00 ts q ti g 46 a40 U I II , El Ii I I...: C5zzz~~ uIR~iNil to C5'4)'-4 dP f~qqqqqo gl8q888 to N r--33 I I 0 a.'.1 1 ON 14 0 1' 0 .iO csU 9-4 'I I 1 W §00000 00000 00000 -m 00 00000& &I El I Bill U, Ii qiq U I 0 U! .0 ,oil 0'm I Rm "a z"zzCLS I~[i'tO~.11&bH88888 ddn 5 5 I eia L~ 4k 0 I II Ii' Ii U U I AM,.r4i 11ON I-4 I im 41 I iiu ILAIaI 0 0 0 I F~jsqsgI c S 8a fmoU1oL I I II I II Ii I 0 U .0 ,ncA"1i r I p Uii lot-1 AAA, K8 I _ II I0 U!". Ii I j IW LL4 &C4 ~I4 SMI So L I ;I b88q8iq wddcdaQ S00000~q A 944 U 0.00 0 g qoA u(I uC N ~rr-. ItL v-49-4 v-4 tEdl mi RM cn I II U g Ii I V~~~IAMLES R11 13&AI ii AIA ~iijMLA I; ,J avVWO l iS4 H El I b dp OddI d*8o8d 0 ORPU ill: '0 0 U I ,oil r-4 7-4 V-0 AAA I I I I I I 'rs'm C5,0 esi I mC, C n a4-; ;iz; I H Ii I, I'L JI a'a Rr a'a: 14 r5 8EN89 S4-mil ignII 0o I I 9 I mm1 1011r AAA4.M11 00a, '-4ý 91 1 Lq U)N plRoKlEgE 0 Rm I14 ýj u1 a t En EnEn ~ I ii I 8 c NsI I I ii ii i1~I oi~I I 9Pn te 998894 III U 4' fig U ii II 'JIM I II I I I I 0 b H ej Ej 9 q U) Lq Ul Ln C4 r- I,-IMM 911 dp I LO qjw 4 Avi a; Tr LO co J am as'.4 a A r-II; ;ý- -i- I j 4 ui a.-q a M At9togillt A WA Ir AS 13 ai i'Riuii ;j10MC l LO s 1 ýý j 00000 d 9jq8s 1 d d Hn ooc4 r 0 I I I S II I FIjI WI Ii M IM I I 11I 11 00 I i I P0011111 nbobbb PHU 0000 9900011 C0000GA.9Q 999 R aia d*Po-ý -aso!Rs R:5! P11 v~ia SR10 I N II All III I-aiii I10 I I I I 3' II I II £IIý0 I.0 10 r I I I U T T4 C5w 1' d'I ii aCu a d 8. 0)I I ,ili A " IA H iI 5 OIp Qt~ 8 C, 0O ii Table 3.2-1 (continued)

I SN UI= Q 1999 am 2D 3M 4 MQMwwU WV QWw QAW ARM aw AR-aN mJp am, mm oma 04XeI 0.&210 4.73E-10 4.733-10 En1 21(3 S A MW RR 2IE GM R~ B 999 M 1EU, LEM M -10 CPR 9D M. I % CF P I. QMY L2rR 20QIR 3JDJR MHOR TIPLB EU ( 1.5 0.00 0.00 0.00 0.03 CRFU. RtMVEM 5.0 0.00 0.00 0.00 0.00 ma % or 3.0 0.00 30.0 0.00 EDE 1~~aI~~M DWE MK 01 t M1M~ 1.1 Jnmy LQ95 1-21 0 i.E g urn 3 fill I-. I I I i *H 8~ abi t 8I 8.So 0 0o 8*ý0o lit 9r4~ AAA4 R p I ii S cq Table 3.2-1 (continued) affimmmuUM AMMM MVM4M FEREMMAPWMURM 11"(F RMM -M" M 12/AM QIFnIMM MrAW Amm-mr IT 20 3D 4m MEE MM 9AM QAW QAW ARM OROM MRAN JM-SP OM-W O.OMM O.OOM O.OMO 2.09M 2.098-09 BW RZMX O.OMO OAMM O.OMO 3. 1"" 3. 1"" CFGW LIW Im 20 IS A R3W HR ME CN3NM)M 1M ODHMM SUMB -10 CIR 50 AP. I % CFAP 1. OW 1WOR 2N39R 3DOR MW NU %CF CEU awm AR-aN jL-sp aaHm au Ap. i UM Mr P" 1.5 O.OD O.OD O.OD O.OD 3.0 0.00 M, mtý 5. 0 0.00 0.00 O.OD OXD 10.0 0.00 LZM UVR RWZBMtM CEEMAMRW=

LlJJXlCPA COEM XFDM MRXN 1.1 Jmý M CIIM DMIM WM Ll Jxuxy 1995 1-23 Table 3.2-1 (continued)

M 2D 3D MJ -~ ARhax JfrTP 03 MY BMW 4.82H-05 4.633-M 6.U3B-03 L03O 6.12BO3 NMiE ~SU -10 CIR 5D P. I OW 1T QR 2NDQOR 3D 9R 47H R YUC =PLM (I4f4 1.5 0.00 0.00 O.fl 0.0 3.0 0.06 cm!r CInvEB) 5.0 0.00 0.00 0.12 0.00 10.0 0.06 xm Im~ WE fl m W34IX MMM VRN 1 &XIuy M9 1-24 Table 3.2-1 (continued) 31U CF -M/"VlID 12 IZ3 M CILI! Oar4D Iff 20 30 M11 alM R-N jjxr ai KJEY HSM IS A RM 331 %IE QWRM W1 C9 cofMM SWE -10 aR SD AP. I QMY 19OR 2D QIR 30 QR 43H QR VUC CE aum~ ARiXN Jmrw m- cau A. i WL MY ff")1.5 0.00 0.00 0.3 0.01 3.0 0.13 CFU. aOt4ffl) 5.0 0.00 0.00 0.30 0.0) 10.0 0.15 1-25 mu Ii m IA I I H tin U ii ifju I II I I IN I i 0 0-4 Table 3.2-1 (continued)

OR SENM 1N DUM -W MX ]2WL9 ccI 3Z M* MgW~ QELU ~RVUIM QER M~ MML ~921- 6.3&H 3A6+MO LOVI-O 3.7jL-O3 MUM ~ .1-9 MGM~c 1395 1M21HO1 LC& 7M3I IS A KRM E @IM)MM CDRUKtE S~ML- 10 OR 59D .I 9MX 1% OR 2D 9R 3DO~R 4M OR VU4 % CF WE JW.* ;max airwP aImx au j. I XMH~r #4RA 1.5 0.01 0.00 0.2 0.01 3.0 0.122 cm.-aUN(MA 5.0 0.00 0.00 0.W 0.00 10.0 0. 14 CDE S"MM WMK Li J~xty M9 1-27 Table 3.2-1 (continued)

I EFEMSOMMUMMM MMEMEM off" HHEMMA3=EEMM I;ff ftffý Cr MAV% m V/.Dm amm) M*9/w Rim Im 2D 3D 421 To QAw amm amm QNM Mm a%4-M MmaN jxxw amLw 4.63+M 2.1'AI-M 4.321-C5 1.03MM 4.09+M 4Mýffi 2.3ffi-M 4JE&M LOVI-M 4-M-M 7offm GE ra LM LZM a UZ WMISA ICRMECN3N3R)MI999 CDKMM SMS -10 OR!9D;FP.

I % Crap I. 1W QR 2D QR 3D OR M 9R M JPthM AIR-aN jum amuc CEU L.5 O.OD O.M O.OD O.M 3.0 ýO O.OD O.OD 0.00 0.03 10.0 7Hffw a la Im LM GI 3MUKU CEIMRNRY&MM 1.1J=1cFA axm s"m wm 1.1 &,my m CM4 DEEM MOM 1.1 anmy M I Cr Ep. I O.M O.OD la QU a TOLEU "eq au. amm" i How 1-28 b H 2 00 0 8, 0s 8 C; 0 01 7 9 A.4 Ag~Will I&I to 0 e4 a.'U I I III LII 11I I A 8dli1'I A. X0 A b i I I I I 01 to II I, U'III 'Iii 0 I b P I w I *I I I H I U' I * "El I H 0-3 Ii Iii' 'Ii I I I 080 R Table 3.2-1 (continued) wimfl 1P -OLOMAXMM12,43," CMDXIKMO~V2B To QJR Q~Mw QAUf QAMH AR I1w G flitN iirw a m II MWISA KRH M~~E CPNW 1~ 999 DOcEEM UMB -10 C1R 9D. I U"y 1% QR On 0Ki~4) 5.0 0.00 Im~ HE= ESD U tI 20QIR 3ID R 41H gR VU % CF jwaN jjzxm == cDT m. i OMf 0.00 0.01 3.0 0.C2 0.04 0.00 0.00 10.0 0.02 1-31"2m BXY Table 3.3-1 10 CER 2 D~ C3.MAMM IKDcF Ms~ OIAfM wD J2/1/ 1. 30 R20.3O1 (a) (1) altimit m!E M Ocflimit__0.00_ -qa Sznuy -lo Ls+/- 2r d 4th %c QX orQ tr Limt TE 1.3E-c i.3&-M 7.3B-M iSMK5 0.00 aM MM WEN 1.1 akny L995 1-32 Table 3.3-1 (continued)

MG (F PBMSSr 02tV%9 M 12"V~ awl=)3 0WAD 2. 10 CER 23J3M (d)/40 CPR BD cbxiam m Uidt % cE W-hdii BxV Pu .Omw0 Qnx3d 119T WA~ 3.3-(B 35.0 0.00 Og~ Ty 1d 4E-(B 75.0. 0.00 L4835 2.0 0.00 BM 1.51EI-M -Z-O -00 r3334-M~ 3.0 0.00 1~ininfr 100~.0 0.00 F~~aI2S D-U VtKN L4Rl anny 11 J995 1-33 Table 3.3-1 (continued) 10 CER 23 cDfLMt A~gES 1. 10 aR 2D.fl (a) (1) 03Tn~are T-10 Effe+/-te 3M B~le uw mv 3A1MW !wOfl~init 3.41 gx Qt r Qtr l~ift CDEM~ 1.1D WM l my M9 CM4 UHMa~N 1.1 kauy LC%1-34 Table 3.3-1 (continued) uras PSm SUM 2 o lo oR 2) aeMIM A90 cr Asmssr aO1ý'A 3o 1Z"V~ 2 10CFR AID- 0dADCR M gifm Um Ikidt % of Wn~e BAv Ehm 2.49MO Qnrxd 1.093_M 21a1 3.4MC'O 25.0 13.9A BMEht 3.631-M f7-0 -0.01 LM3.993-M

~.0 0.01 mxxw 4.98iH3 X.-O OM Bale 6AM 25.0 0.03 ME 3.4MO~f 100l.0 3.41 CDH rm MSX 1.1 .bmuy m~ C1XM MMM MRSM 1.1 ahiwy 193 1-35 Table 3.3-1 (continued) 10 CER 2D MKIM4 AM64r RWCF A9M M1AW%, W 1'I,99 1.30 CER 20.13)1 (a) (1) Crliui urr3iO. of itlit 2.85 -tlac 33mmy -m WE JLB-O 7.3M-O 9.07B-O L.OE40D 2.86 REn MU -C- tI R MThMJN 1.1 JU 1994 1-36 I Table 3.3-1 (continued) rsFCmSMD UIT mm~ 10 CE 20 a~mmm Psgmgm aOflIMH OV'O7,D 2. 10 CPR 23.133 (dV40. CER IqO Oxiiat Ekme t&it % of Raie B4'y Ph=u 1-53&M3 Qa~rc 2.09-03 8~ .M-(B 25.0 0.0 BMEzt 8.GML3 25.0 0.01 Iftza 8.-9%3 -KO _ 0. 01 We 8.8]E"0 25.0 0.01 CKE 9.49Mc1 1-37 Table 3.4-1 DRESDEN STATION -UNIT I MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES CURRENT PERIOD OF RELEASE: October 1 -Deceuber 3a YEAR: 1999 CURRENT PERIOD CURRENT QUARTER THIRD QUARTER SECOND QUARTER FIRST QUARTER GAMMA AIR (arad) BETA AIR (arad) WHOLE BODY (mrem) SKIN (ares) ORGAN C(rea) CRITICAL PERS-ORG O.OOOE+O0( N ) O.OOOE+OO( N ) 6.230E-OT(SSE) 7.330E-0T(SSE) 1.090E-08( E ) TA-LN O.OOOE+OOi N ) O.O00E+OO( N ) 6.230E-0T(SSE) 7.330E-O1(SSE) 1.090E-08( E ) TA-LN O,OOOE+OO( N ) O.OOOE+OO( N I 1,9OE-01(SSE) 2.220E-O7(SSE) 2.820E-09( E ) TA-LN O.OOOE+O0( R ) O.OOOE+OO( N ) B.99CE-OT(ESE)

I.060E-O5(ESE) 3.21CE-OB( NW) TA-Lk O.O00E+OO( O.OOOE+OO( 3.T30E-06( 4.3BOE-O0( 4.350E-O( TA-LN N) n) SE) SE) E)O.OOOE+0O( N ) OOOE+0( N ) 5.264E-06( SE) 6.1B4E-OS( BE) 1.SBOE-081OSW)

TA-LN COMPLIANCE STATUS.TYPE OF DOSE OQU GAJk AIR (arid) BETA AIR (arid) WHOLE BODY (wrea) SKIN (mrea) ORGAN (Oren) CRITICAL PERSON-ORGAN 1O CFR 50 APP. 1 10 CFR 50 APP.I ARTERLY OBJECTIVE I OF APP. I YEARLY OBJECTIVE

% OF APP. I 5.0 10.0 2.5 7.5 1.5.00 .00 .00 .00 .00 (TA-LH)10.0 20.0 5.0 15.0 15.0.00 .00 .00 .00 .00 (TA-LN)CRITICAL ORGANS: BN=BOXE, LV=LIVER, TgzTOTAL BODY, TH=THYROIO, KO=KIDNEY, LN:LUNS, GI=GI-LLI CRITICAL PERSON: AD=ADULT, TA=TEENAGER, CH=CHILD, INzINFANT Dite of calculation:

4/17/2000 1-38 TYPE OF DOSE ANNUAL I Table 3.4-1 (continued)

DRESDEN STATION -UNIT 2 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES CURRENT PERIOD OF RELEASE: October 1 -December 31 YEAR: 1999 CURRENT PERIOD CURRENT QUARTER THIRD QUARTER SECOND QUARTER FIRST QUARTER GAMMA AIR (Wrad) BETA AIR (nrad) WHOLE BODY (irem) SKIN (mre.) ORGAN (trim) CRITICAL PERS-ORG 7.150E-04( N ) 1.145E-04( E ) t.3TOE-03(SSE) 1.615E-03(SSE) 8.61TE-05( E ) CH-TH 7.150E-04( N ) 1.145E-04( E ) 1.37OE-03(SSE) 1.675E-03(SSE) 8.S1TE-05( E ) CH-TH 5.TODE-04(SSE) 1.310E-04( E ) 8.145E-04(SSE) 1.058E-03(SSE) 1.139E-04(SSE)

CH-TH 1.50OE-0O(NW) 1.205E-04( N) 4.015E-04(0N0) 5.41SE-04(NNW) 6.990E-05( NH) CH-Th 4,195E-04( E ) 8.150E-05( E ) 3.292E-03(SSE) 3.904E-03(SSE) 1468E-04( N ) TA-LN 2.091E-O3(NNW) 3.553E-04( E ) 5.714E-03(SSE) 6.934E-O3(SSE) 3.157E-041 E ) CN-TH COMPLIANCE STATUS TYPE OF DOSE QUA GAMMA AIR (mrad) BETA AIR (mrad) WHOLE BODY (tret) SKIN (trem) ORGAN (crea) CRITICAL PERSON-ORGAN 10 CFR 50 APP. 1 10 CFR 50 APP.I ARTERLY OBJECTIVE

% OF APP. I YEARLY OBJECTIVE

% OF APP. I 5.0 10.0 2.5 7.5 7.5.01 .00 .05 .02 .00 (CH-TH)10.0 20.0 5,0 15,0 15.0.02 .00 .11 .05 .00 (CH-TH)CRITICAL ORGANS: ON=BOKE, LV=LIVER, TO:TOTAL BODY, Ill:THYROID, KO=KIDXEY, Lk=LUNG, GI=GI-LLI CRITICAL PERSON: AD=ADULT, TA=TEENAGER, CH=CHILO, IK=INFANT Date of calculation:

4/17/2000 1-39 TYPE OF DOSE ANNUAL Table 3.4-1 (continued)

DRESDEN STATION -UNIT 3 MAXIMUM DOSES RESULTING FROM AIRBORNE RELEASES CURRENT PERIOD OF RELEASE: October I -Deceiber 31 CURRENT PERIOD CURRENT QUARTER THIRD QUARTER SECOND QUARTER FIRST QUARTER GAMMA AIR (Irad) BETA AIR (nrad) WHOLE BODY (Wrel) SKIN (mre) ORGAN (arei) CRITICAL PERS-ORO 7.150E-04( N ) 1.145E-04( E ) 1.STOE-03(SSE) 1.STSE-03(SSE) 8.1ITE-05( E I CH-TH 1.150E-04( N ) 1.145E-04( E ) 1.370E-03(SSE) 1,6.TSE-O3(SSE) 8.61TE-05( E ) CH-TH 5.7OOE-04(SSE) 1.310E-04( E ) 8.145E-04(SSE)

I.05BE-O3(SSE) 1.139E-04(SSE)

CH-TH 7.500E-4t(NN8) 1.205E-04( Nw) 4.015E-O4(N0W) 5.41tE-04(NNI) 6.99DE-05( XW) CH-TR 4,195E-04( E ) S.1SOE-05( B ) 3.292E-03(SSE) 3.904E-03(SSE) 1.48E-04( N ) TA-LN 2.091E-03(NNW) 3.553E-04( E ) 5.714E-03(SSE) i.934E-03(SSE) 3.IS1E-04( E ) CH-TH COMPLIANCE STATUS TYPE OF DOSE QUA GAMMA AIR (urad) BETA AIR (mrad) WHOLE BODY (ores) SKIN (irem) ORGAN (trem) CRITICAL PERSON-ORGAN 10 CFR 50 APP. 1 10 CFR 50 APP.I RIERLY OBJECTIVE

% OF APP. I YEARLY OBJECTIVE 5.0 10.0 2.5 7.5 7.5.01 .00 .05 .02 .00 (CH-TX)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, G0=GI-LLu CRITICAL PERSON: AD=ADULT, TA=TEENAGER, CH=CHILD, IN=INFANT Maximum Offsite Values (pC0m3)Date of calculation:

4/17/2000 Iodine Particulate Matter Data Recovery (priority parameters) 1.08E-03 pCi/m3 4.05E-04 pCi/m3 99.9%1-40 TYPE OF DOSE YEAR: 1999 ANNUAL-,OF APP. I .02 .00 .11 .05 .00 (CH-TH)I I I Figure 5.0-1 DRESDEN 0 5 10MUIM t0 20 KlIom-too Dresden Station Units 1,2 & 3 Fixed Air Sampling and TLD Sites, Outer Ring TLD Locations and Milk Location 0 Air Sampling Locatlan a TLD Location

• Milk D-01 Onsite Station 1 D-12 (C) Lisbon D-02 Onsite Station 2 D-13 Minooka D-03 Onsite Station 3 D-14 Channahon D-04 Collins Road D-45 McKinley Woods D-07 Clay Products D-53 Grundy County Road D-08 Prairie Parks D-25 Biros Farm (Milk) D-10 Goose Lake Village 1-41 0 L ý -ý ý w--=ýj Figure 5.0-2 DRESDEN V UJ 102-2 10, 1-,. 5-2~~1 1

• Dareden ln caear 1 1~l 0*

• 36 o 1 2OW*I Fish TLD Sediment 0 Water 10 1.23 Dresden Station Units 1,2 & 3 , Inner Ring TLD Locations Fish, Water and Sediment Locations D-23 Thorsen Well D-27 Dresden Lock & Dam D-28 Dresden Pool of Illinois River D-35 Dresden Lock & Dam D-46 DesPlaines River, Upstream 51 Dresden Lock & Dam 2 DesPlaines River 1-42 TABLE 5.0-1 Dresden Station Radiological Environmental Monitoring Locations D-01 Onsite Station 1 D-02 Onsite Station 2 D-03 Onsite Station 3 D-04 Collins Road D-07 Clay Products ' D-08 Prairie Parks D-10 Goose Lake Village D-12 Lisbon D-13 Minooka D-14 Channahon V % D-23 Thorsen Well D-25 Vince Biros Farm D-27 Dresden Lock & Dam D-28 Dresden Pool at Illinois River D-35 Dresden Lock & Dam D-46 DesPlaines River, Upstream D-45 McKinley Woods Road % D-51 Dresden Lock & Dam D-52 DesPlaines River. D-53 Grundy County Road %0 40 D-Quad I D-Quad 2 D-Quad 3 D-Quad 4 D-Control

", CENSUS Dairy Residence Cattle 1-43 TABLE 5.0-2 DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

1. AIR SAMPLERS Distance Direction Sector Site Codea Location (miles D-01 Onsite Station 1 0.6 NW Q D-02 Onsite Station 2 0.3 NE C D-03 Onsite Station 3 0.4 S J D-04 Collins Road 0.9 W N D-07 Clay Products 2.0 S J D-08 Prairie Parks 4.0 SW L D-10 Goose Lake Village 3.8 SSW K D-12 (C) Lisbon 10.0 NW Q D-13 Minooka 4.5 N A D-14 Channahon 3.5 NE C D-45 McKinley Woods Road 1.5 ENE D D-53 Grundy County Road 2.1 SSE H 2. TLDs a. Same as No. 1. b. Special TLD Locations D Distance Direction Sector Site Code (mles Inner Ring D-101-1,2 , 1.0 N A D-102-1,2 1.3 NNE B D-103-1,2 1.2 NE C D-104-1,2 1.5 ENE D D-105-1,2 1.4 E E D-106-1,2 0.9 ESE F D-107-1,2 1.3 SE G D-108-1,2 1.9 SSE H D-109-1,2 0.8 S j D-110-3,4 0.8 SSW K D-111-1,2 0.6 SW L a Control (reference) locations are denoted by a "C" after site code. All other locations are indicators.

1-44 TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS

2. TLDs b. Special TLD Locations (continued)

Distance (miles)Site Code Direction Sector Inner Ring (continued)

Location Vince Biros Farm WSW W WNW NW NNW N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Direction SW 0.8 0.9 1.0 0.8 1.0 D-112a-1,2 D-113-1,2 D-114-1,2 D-115-1,2 D- 116-1,2 Outer Ring D-201-1,2 D-202-1,2 D-203-1 ,2 D-204-1,2 D-205-1,2 D-206-1,2 D-207-1,2 D-208-1,2 D-209-1,2 D-210-1,2 D-211-1,2 D-212-3,4 D-213-1,2 D-214-1,2 D-215-1,2 D-216-1,2 4.5 5.0 4.5 5.0 4.2 3.5 4.5 5.0 5.0 4.8 5.0 6.0 4.5 4.5 5.1 4.8 M N P Q R A B C D E F G H j K L M N P Q R Sector L 3. MILK Site Codea D-25 (C)Distance (miules)11.5 a Control (reference) locations are denoted by a "C" after site code. All other locations are indicators.

1-45 TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLING LOCATIONS 4. GROUND/WELL WATER Location Thorsen Well Dresden Lock & Dam Distance (miles)0.7 0.5 Direction Sector S NW J Q 5. SURFACE WATER Site Code D-51 D-52 (C)6. FISH Site Code D-28 DSP-46(C)

7. SEDIMENT Site Code D-27 Location Dresden Lock & Dam DesPlaines River Location' Dresden Pool of Illinois River DesPlaines River, Upstream Location Dresden Lock & Dam 8. VEGETATION Site Code Quad 1 Quad 2 Quad 3 Quad 4 Control (C)Location Chris Locknar Robert Pagliano Jim Bloom J.D.Carmichael Glasscock Farm a Control (reference) locations are denoted by a "C" after site code. All other locations are indicators.

1-46 Site Codea D-23 D-35 Distance (miles) 0.5 0.9 Distance (MIles) 0.5 0.9 Distance (miles) 0.5 Distance (miles) 2.8 3.2 3.9 1.6 12.8 I Direction NW ESE Direction NW E Direction NW Direction NE SSE SSW NNW ENE Sector Q F Sector Q E Sector Q Sector C H K R D I TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Code 0 Site Frequency Analysis of Analysis 1. Airborne Onsite, Nearfield and Control Filter exchange Gross Beta Weekly Particulates weekly Gamma Isot. Quarterly Composite D-01 Onsite I (or ifwee kly go btaina D-02 Onsite 2 oceoo 5x the D-03 Onsite 3 average concentration of D-04 Collins Road preceding calendar qua-tr).

D-07 Clay Products D-12 (C) Lisbon D-45 McKinley Woods Road D-53 Grundy County Road Far Field Gamma Isot. If orm beta in a ceeda 10 tion the yeary mean of control D-08 Prairie Parks saples and u D-10 Goose Lake Village cosirme as having it origns in D-13 Minooka airborne ifitmnas released from D-14 Channahon the station.

2. Airborne Same as I. Canister exchange 1-131 Biweekly Iodine biweekly 3. Air Sampling Same as 1. Test and Weekly Train Maintenance

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

b. D-101-1,2 Inner Ring 102-1,2 103-1,2 104-1,2 105-1,2 106-1,2 107-1,2 108-1,2 109-1,2 110-3,4 111-1,2 112a-1,2 113-1,2 114-1,2 115-1,2 116-1,2 c. D-201-1,2 Outer Ring 202-1,2 203-1,2 204-1,2 205-1,2 206-1,2 207-1,2 "Control (background) locations are denoted by a "C" in this column. All other location are indicators.

1-47 TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Code' Site Frequency Analysis of Analysis 4. TLDs (continued)

D-208-1,2 Outer Ring Quarterly Gamma Quarterly 209-1,2 210-1,2 211-1,2 212-3,4 213-1,2 214-1,2 215-1,2 216-1,2 5. Milk D-25 Biros Farm Biweekly:

1-131 Biweekly:

May-October Gamma Isot. May-October Monthly: Monthly: November-April November-April

6. Vegetables Quad I Chris Locknar Annually -two varieties Gamma Isot. Annually Quad 2 Robert Pagliano from each location as 1-131 Annually, on broad leaf Quad 3 Jim Bloom available at harvest. vegetation.

Quad 4 Robyn Willis Control Glasscock Farm 7. Ground/Well D-23 Thorsen Well Quarterly Gamma Isot. Quarterly Water D-35 Dresden Lock & Dam Tritium 8. Surface Water D-51 Dresden Lock & Weekly Gross Beta Monthly composite.

Dam Gamma Isot. Monthly composite.

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

Upstream 9. Fish (at least D-28 Dresden Pool Two times/year Gamma Isot. Two timeslyear on two species) of Illinois River edible portions only. D-46 (C) DesPlaines River, Upstream 10. Sediments D-27 Dresden Lock & Semiannually Gamma Isot. Seniannually Dam 11. Land Use Census Milch Animals a. Site Boundary to 2 miles a. Enumeration Annually during grazing by a door to door season. or equivalent counting technique.

b. 2 miles to 6.2 miles b. Using referenced information from county agricultural agents or other reliable sources. "Control (background) locations are denoted by a "C" in this column. All other location are indicators.

1-48.1 1 TABLE 5.0-2 (continued)

DRESDEN STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM, SAMPLE COLLECTION AND ANALYSES Location Collection Type of Frequency Sample Media Code 8 Site Frequency Analysis of Analysis 13. Land Use Census (continued)

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

season. 1. Pasture only. 2. Feed and chop only. 3. Pasture and feed: ifboth, ask farmer to estimate fraction of food from pasture: <25%, 25-50%, 50-75%, or >75%. Nearest In all sectors up to 6.2 miles. Annually during grazing Residence season.Control (background) locations are denoted by a "C" in this column. All other location are indicators.

1-49 Table 5.0-3 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility:

Dresden Nuclear Power Station Location of Facility:

Grundy Illinois (County, State)Docket No. 50-10,50-237, 50-249 Reporting Period: Ist Ouarter 1999 Sample Type Type and LLD Indicator Location with IHighest Control Number of (Units) Number of Locations Highest Mean' Locations Non-routine Analyses Mean' Quarterly Mean Range Mean' Results Range : _Range Air Gross Beta 104 0.0 0.023 (91/91) Roa 0.025 (13/13) 0.024 (13113) Particulates

• (0.013-0.038) 0.9 mi. W, Sector N (0.017-0.038)

(0.019-0.038) (pCi/mn 3) Gamma Spec. 8 Cs-134 0.01 <LLD -:LLD 0 Cs-137 0.01 <LLD <LLD 0 Other Gammas 0.01-0.04

<LUD <LLD 0 Airborne Iodine 1-131 48 0.07 <LLD <LLD 0 (pCi/m 3) Milk 1-131 3 5 <LLD <LLD 0 (pCi/L) Gamma Spec. 3 Cs-134 15 <LLD <LLD 0 i <LLD Cs-137 18 <LLD <LLD 0 Ba/La-140 15 <LLD <LLD 0 Other Gammas 15-30 <LUD -<LLD 0 Surface Gross Beta 6 4 5.4 (3/3) D-51, Dresden Lock 5.4 (3/3) 5.0 (3/3) 0 Water (4.5-6.3)

& Dam (4.5-6.3)

(4.0-5.6) (pCi/L) Gamma Spec. 6 0.5 mi. NW, Sector Q Cs-134 15 <LLD <LD 0 Cs-137 18 <LLD <LLD 0 Other ODCM Required Gammas 15-30 <LLD <LLD 0 Tritium 2 200 331 (111) D-51, Dresden Lock 331 (1/1) <LLD 0 & Dam 0.5 mi. NW, Sector Q Well Water Tritium 2 200 388 (1/2) D-23, Thorsen Well 388 (1/2) None 0 (pCi/L) 0.7 mi. S, Sector J Gamma Spec. 2 Cs-134 15 <LLD --None 0 Cs-137 18 <LLD None 0 Other ODCM Required Gammas 15-30 <LLD -None 0 Gamma Background Gamma Dose 88 9.7 16.1 (86186) D-110-4 20.8(1/1) 13.3 (2/2) 0 (TLDs) (12.8-20.8) 0.8 mi. SSW, Sector K (13.3-13.3) (mR/Qtr.)

4-. nge tsed on detectabl1e measurements only. frracTions indicated in parentheses..

Locations D-04 and D-53 had identical means of 0.025 pCi/m'. Only D-04 is detailed in this summary.

1-50 I I Table 5.0-4 RADIOLOGICAL ENVIRONMENTAL MONHIORING PROGRAM QUARTERLY

SUMMARY

Name of Facility:

Dresden Nuclear Power Station Docket No. 50-10,50-237, 50-249 Location of Facility:

Grundy. Illinois Reporting Period: 2nd Quarter 1999 (County, State) Sample Type Type and LLD Indicator Location with i Highest Control Number of (Units) Number of Locations Highest Mean' Locations Non-routine Analyses Mean! Quarterly Mean Range Mlean Results Range _ Range Air Gross Beta :103 0.01 0.019 (86/90) D-12, Lisbon 0.020 (13/13) 0.020 (13/13) 0 Particulates (0.010-0.027) 10.0 mi. NW, Sector Q (0.013-0.027)

(0.013-0.027) (pCi/mr) Gamma Spec. 8 Cs-134 0.01 <LLD <LLD 0 Cs-1 37 0.01 <LLD <LLD 0 Other Gammas 0.01-0.04

<LLD <LLD 0 Airborne Iodine 1-131 55 0.07 <LLD <LLD 0 (pCi/M 3) Milk 1-131 5 0.5 1 5.0 b <LLD <LLD 0 (pCiIL) Gamma Spec 5 Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Ba/La-140 15 <LLD <LLD 0 Other Gammas 15-30 <LLD --<LLD 0 Fish Gamma Spec. 8 (pCi/g wet) Cs-134 0.10 <LLD <LID 0 Cs-137 0.10 <LLD <LLD 0 Other ODCM Required Gammas 0.13-0.26

<LLD <LLD 0 Other Gammas 0.20-0.30

<LUD <LLD 0 Sediments Gamma Spec. (pCilg wet) Cs-134 0.15 <LLD None 0 Cs-137 0.18 <LLD None 0 Other Gammas 0.10-0.60

<LLD None 0 Surface Gross Beta 6 4 <LLD D-52, DesPlaines River 6.1 (313) 6.1 (3/3) 0 Water 0.9 mi. ESE, Sector F (5.8-6.1)

(5.8-6.1) (pCi/L) Gamma Spec. 6 Cs-134 15 <LLD -<LLD 0 Cs-137 18 <LLD -<LLD 0 Other ODCM Required Gammas 15-30 <LLD -<LLD 0 Tritium 2 200 313 (1/1) D-51, Dresden Lock 313 (1/1) <LLD 0 & Dam 0.5 ml. NW, Sector Q Mean and range based on detectable measurements only. Fractions indicated in parentheses.

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

1-51 Table 5.0-4 (continued)

Name of Facility:

Dresden Nuclear Power Station Location of Facility:

Grundy. Illinois Docket No. 50-10, 50-237 50-249 Reporting Period: 2nd Ouarter 1999 (County, State) Sample Type Type and LLD Indicator Location with Highest Control Number of (Units) Number of Locations Highest Mean* Locations Non-routine Analyses Mean 8 Quarterly Mean j Range Meaný Results Range Range Well Water Tritium i 2 200 411 (1/2) D-23, Thorsen Well 411 (1/1) None 0 (pCi/L) 0.7 mi. S, Sector J Gamma Spec. 2 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM Required Gammas 15-30 <LLD None 0 Gamma Background GammaDose 88 9.7 17.7 (86/86) D-111-1 26.3(1/1) 15.5 (2/2) 0 (TLDs) (14.2-26.3) 0.6 mi. SW, Sector L (14.7-16.3) (mRQtr.) Mean and range based on detectable measurements only. Fractions indicated in parentheses.

1-52 I Table 5.0-5 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility-Dresden Nuclear Power Station Docket No. 50-10, 50.237, 50-249 Location of Facility:

Qrundv. Illinois Reporting prenod: 3rd Quarter 1999 (County, State) Sample Type Type and LLD Indicator Location with Highest Control Number of (Units) Number of Locations Highest Mean! Locations Non-routine Analyses Mean 8 Quarterly Mean Range Mean! Results Range __Range Air Gross Beta ::104 0.01 0.025 (91/91) D-07, Clay Products 0.027 (13/13) 0.026 (13/13) 0 Particulates (0.012-0.037) 2.0 mi. S, Sector J (0.018-0.037)

(0.020-0.038) (pCi/i) Gamma Spec. 8 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 48 0.07 <LLD <LLD 0 (pCi/n 3) 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 15-30 None <LLD 0 Vegetation 1-131 5 0.06 <LLD <LLD 0 (pCi/g wet) Gamma Spec. 10 Cs-I 34 0.06 <LLD -<LLD 0 Cs-137 0.08 <LLD <LLD 0 Other Gammas 0.01-0.10

<LLD <LLD 0 Surface Gross Beta 6 4 5.7 (2/3) D-52, DesPlaines River, 5.8 (3/3) 5.8 (3/3) 0 Water (5.2-6.3) 0.9 mi. ESE, Sector F (5.1-6.6)

(5.1-6.6) (pCi/L) Gamma Spec. 6 Cs-134 15 <LLD <LLD 0 Cs-137 18 <LID <LID 0 Other ODCM Required Gammas 15-30 <LLD <LLD 0 Tritium 2 200 282(1/1) D-52, Dresden Lock 282(111) <LLD 0 & Dam 0.5 mi. NW, Sector Q Well Water Tritium 2 200 395 (1/2) D-23, Thorsen Well 395(1/1) None 0 (pCi/L) 0.7 mi. S, Sector J Gamma Spec. 2 Cs-134 15 <LLD -None 0 Cs-137 18 <LLD -None 0 Other ODCM Required Gammas 15-30 <LLD None 0 Mean and range based on detectable measurements only. Fractions indicated in parentheses.

1-53 Table 5.0-5 (continued)

Name of Facility:

Dresden Nuclear Power Station Location of Facility:

Grundy. Illinois (Cunty, State)Docket No. 50-10. 50-237. 50-249 Reporting Period: 3rd Quarter 1999 1-54 Sample Type Type and LLD Indicator Location with Highest Control Number of (Units) Number of Locations Highest Mean! Locations Non-routine Analyses Mean! Quarterly Mean Range Mean! Results Range _ Range GammaI Background Gamma Dose 1 88 9.7 17.0 (86/86) D-214-1 22.1 (1/1) 14.1 (212) 0 (TLDs) (13.5-22.1) 4.5 mi. WNW, Sector P (13.9-14.4)

Mean and ranC, based on detectable measurements only. Fractions indicated inparnthes..

1 j Table 5.0-6 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM QUARTERLY

SUMMARY

Name of Facility:

Dresden Nuclear Power Station Docket No. 50-10, 50-237, 50-249 Location ofFacility:

Grundy. Illinois Reporting Period: 4th Quarter 1999 (County, State) Sample Type Type and LLD Indicator Location with Highest Control Number of (Units) Number of Locations Highest : Meawn Locations Non-routine Analyses Meana Quarterly Mean Range Mean' Results Range _ Range Air Gross Beta :104 0.01 0.034(91/91)

D-07, Clay Products 0.036 (13/13) 0.033 (13/13) 0 Particulates (0.014-0.050) 2.0 mi. S, Sector J (0.026-0.050)

(0.020-0.044) (pCi/m 3) Gamma Spec. 8 Cs- 34 0.01 <LLD -<LLD 0 Cs-137 0.01 <LLD -<LLD 0 Other Gammas 0.01-0.04

<LLD -<LLD 0 Airborne 1-131 56 0.07 <LLD -<LLD 0 Iodine (pCi/rn 3 Milk 1-131 4 0.5 <LU)LD <LLD 0 (pCiIL) Gamma Spec .4 Cs-134 15 <LLD <LLD 0 Cs-137 18 <LLD -<LLD 0 Ba/La-140 15 <LU.LD -<LLD 0 Other Gammas 15-30 <LLD <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 Gammas 0.13-0.26

<LLD -<LLD 0 Other Gammas 0.20-0.30

<LLD -<LLD 0 Sediments Gamma Spec. I (pCi/g wet) Cs-134 0.15 <LLD None 0 Cs-137 0.18 <LLD None 0 Other Gammas 0.10-0.60

<LLD None 0 Surface Gross Beta 6 4 7.3 (3/3) D-52, DesPlaines River 8.6 (3/3) 8.6 (3/3) 0 Water (4.5-9.1) 0.9 mi. ESE, Sector F (7.2-9.4)

(7.2-9.4) (pCi/L) Gamma Spec. 6 Cs-134 i 15 <LLD <LLD 0 Cs-137 18 <LLD <LLD 0 Other ODCM Required Gammas 15-30 <LLD <LLD 0 Tritium 2 200 602(1/1) D-51, Dresden Lock & 602(1/1) <LLD I Dam, 0.5 mi. NW, Sector Q Mean and range based on detectable measurements only. Fractions indicated in parentheses.

1-55 Table 5.0-6 (continued)

Name of Facility:

Dresden Nuclear Power Station Location of Facility:

Grundv. Illinois DocketNo.

50-10. 50-237. 50-249 Reporting Period: 4th Quarter 1999 1-56 (County, State) Sample Type Type and LID Indicator Location with IHighest Control Number of (Units) Number of Locations Highest i Mean! Locations Non-routine Analyses Meana Quarterly Mean Range Mean' Results Range _ _ Range Well Water Tritium 5 200 375 (1/2) D-23, Thorsen Well 375 (1/1_ None 0 (pCi/L) .(482-632) 0.7 mi. S, Sector J Gamma Spec. 5 Cs-134 15 <LLD None 0 Cs-137 18 <LLD None 0 Other ODCM Required Gammas 15-30 <LID None 0 Gamma Background GammaDose 1 88 9.7 17.0(86/86)

D-215-1 21.9(1/1) 15.0(2/2) 0 (TLDs) (13.5-21.9) 5.1 mi. NW, Sector Q (14.6-15.3) (mR/Qtr.) -Mean and range based on detectable measurements only. Fractions indicated in parentheses.

I DRESDEN APPENDIX 1E METEOROLOGICAL DATA II-1 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 1999 STABILITY CLASS -EXTREMELY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION 1-3 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 0 0 0 0 0 0 0 0 0 0 0 "0 0 0 0 0 0 0 8 13 Hours of calm in this stability class: 8 13 0 4-7 8-12 13-18 19-24 > 24 TOTAL 4 5 1 4 0 0 1 1 0 2 5 1 0 9 1i 1 0 3 45 0 0 Hours of missing wind measurements in this stability class: Hours of missing stability measurements in all stability classes: 11-2 I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 1999 STABILITY CLASS -MODERATELY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION 1-3 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 0 10 20 27 12 7 7 5 6 6 0 2 2 0 6 4 2 2 6 13 5 0 4 73 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: HI-3 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 1999 STABILITY CLASS -SLIGHTLY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 TOTAL 0 20 21 23 20 9 93 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11-4 15 9 6 1 7 6 2 5 2 3 5 5 6 5 8 8 0 0 1--,

DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 1999 STABILITY CLASS -NEUTRAL (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 1 1 1 0 1 2 4 0 1 0 4 4 2 0 0 2 0 4-7 8-12 13-18 3 5 17 24 12 6 1 4 7 7 6 4 5 10 12 6 0 23 129 11 22 33 26 10 3 11 14 13 7 13 4 22 19 9 8 0 225 5 22 25 23 31 32 13 12 23 12 13 12 30 46 20 16 0 335 19-24 > 24 TOTAL 9 0 29 3 5 58 9 0 85 4 1 78 15 18 87 18 6 67 11 0 40 9 0 39 23 22 89 8 4 38 7 4 47 8 12 44 55 38 152 33 25 133 22 1 64 15 9 56 0 0 0 249 145 1106 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: 11-5 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 1999 STABILITY CLASS -SLIGHTLY STABLE (DIFF TEMP WINDS MEASURED AT 300 FEET 300-35 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 1-3 4-7 8-12 13-18 19-24 > 24 TOTAL 5 13 8 16 8 12 3 10 12 5 2 3 12 10 5 4 0 19 58 128 13 13 14 9 15 8 16 18 15 19 12 11 12 21 14 16 0 226 5 3 0 2 7. 6 8 1 22 18 9 5 4 10 5 5 0 110 0 0 0 1 1 0 3 8 17 7 1 1 3 0 0 0 0 25 34 28 36 40 30 37 45 71 49 27 23 38 44 27 28 1 42 583 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11-6 0 I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 1999 STABILITY CLASS -MODERATELY STABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE 1-3 4-7 8-12 13-18 19-24 > 24 TOTAL 3 6 3 5 4 2 13 4 3 0 2 7 4 5 3 1 0 7 17 2 0 0 1 8 5 3 1 10 6 3 0 3 2 0 14 24 8 11 7 5 24 12 15 3 15 15 14 9 9 8 0 TOTAL 11 28 65 68 Hours of calm in this stability class: 17 0 Hours of missing wind measurements in this stabili Hours of missing stability measurements in all sta ty class: bility class 4 193 0 es: 01 11-7 STABILITY WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JANUARY-MARCH 1999 CLASS -EXTREMELY STABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)1-3 0 1 1 0 0 0 1 0 0 0 0 0 0 1 0 0 0 8-12 13-18 19-24 > 24 TOTAL 4-7 0 0 1 2 0 0 2 0 2 1 2 2 1 1 0 0 0 4 14 20 24 5 0 67 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: H-8 I 0 4 10 2 4 2 2 5 0 4 6 5 9 8 6 0 0 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 1999 STABILITY CLASS -EXTREMELY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION 1-3 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 4-7 1 1 10 4 2 4 7 0 2 1 0 3 3 1 4 1 0 8-12 13-18 19-24 > 24 TOTAL 6 7 14 13 2 5 6 2 1 3 0 0 1 3 1 0 0 0 44 64 28 4 8 148 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11-9 9 10 31 19 5 16 14 2 3 4 0 4 5 12 10 4 0 3 STABILITY WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 1999 CLASS -MODERATELY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)1-3 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 4-7 1 1 2 7 3 8 5 1 1 3 0 0 3 0 0 0 0 8-12 13-18 19-24 > 24 TOTAL 1 3 4 3 3 8 4 5 3 2 1 3 1 3 0 0 0 3 35 44 26 11 8 127 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-10 3 5 9 11 10 21 10 8 10 11 3 5 8 7 5 1 0 3 I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 1999 STABILITY CLASS -SLIGHTLY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET.WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 1 2 2 0 0 0 2 0 0 0 0 0 0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 TOTAL 1 0 2 2 3 11 4 6 6 1 0 1 1 2 0 1 0 7 43 41 23 18 7 139 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: H-11I 6 5 10 6 11 18 15 9 15 10 4 6 3 10 7 4 0 3 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 1999 STABILITY CLASS -NEUTRAL (DIFF TEMP WINDS MEASURED AT 300 FEET 300-35 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 1-3 2 1 1 2 4 1 1 3 1 0 1 0 0 2 0 1 0 4-7 8-12 13-18 19-24 > 24 TOTAL 3 6 3 2 2 19 5 47 9 14 9 10 5 16 10 20 8 20 5 8 2 2 7 4 3 2 2 7 0 10 2 5 0 0 20 75 192 286 12 6 24 22 23 11 10 33 30 17 16 9 26 25 13 9 0 4 9 4 0 7 2 7 6 6 5 12 3 10 2 2 4 0 35 28 59 82 74, 44 40 77 77 52 44 28 51 52 39 31 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: 11-12 8 7 9 6 17 11 1 5 12 17 11 5 10 14 14 10 0 157 3 I----- -----83 813 I I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 1999 STABILITY CLASS -SLIGHTLY STABLE (DIFF TEMP WINDS MEASURED AT 300 FEET 300-35 FT)WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE 1-3 0 1 1 2 0 0 0 2 0 2 1 1 1 0 0 0 0 4-7 5 2 5 14 11 7 7 7 7 3 4 5 5 3 5 3 0 8-12 13-18 19-24 > 24 TOTAL 6 8 18 29 29 26 35 30 6 9 6 9 6 3 10 8 0 7 5 16 10 28 21 20 53 33 13 6 6 16 6 13 9 0 0 6 4 1 6 12 2 4 23 18 5 2 4 1 0 0 0 18 22 44 56 76 69 68 98 72 50 23 23 32 13 28 20 0 TOTAL 11 93 238 Hours of calm in this stability class: 262 88 20 712 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 11-13 STABILITY DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 1999 CLASS -MODERATELY STABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 0 1 0 1 0 1 0 1 0 0 0 0 0 2 0 4-7 8-12 13-18 19-24 > 24 TOTAL 2 5 1 0 1 3 1 5 2 1 6 4 7 9 3 4 4 5 5 0 3 3 4 8 0 4 3 3 1 4 1 2 0 0 1 1 1 0 4 12 16 11 3 6 3 16 2 1 6 3 0 6 44 60 86 11 0 207 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11-14 8 3 6 7 8 25 33 20 15 11 9 30 6 7 11 8 0 3 I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: APRIL-JUNE 1999 STABILITY CLASS -EXTREMELY STABLE (DIFF TEMP 300-35 FT)WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE 1-3 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 4-7 0 1 0 2 0 0 0 0 0 1 1 0 1 0 0 0 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 1 1 1 0 2 1 0 0 0 3 0 0 1 2 0 0 0 0 0 0 0 0 0 0 1 2 0 0 6 2 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 TOTAL 2 6 14 12 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 1 0 stability class: all stability class 0 35 0 5es: 3 11-15 TOTAL 0 1 0 3 1 4 4 3 3 1 1 3 9 2 0 0 0 STABILITY WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 1999 CLASS -EXTREMELY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)1-3 0 0 1 1 0 1 0 0 0 0 1 0 0 0 1 0 4-7 2 4 10 8 2 2 7 2 0 6 9 11 5 2 2 2 0 8-12 13-18 19-24 > 24 TOTAL 9 9 2 9 1 1 10 0 1 9 1 3 9 9 6 15 0 2 16 8 0 0 0 0 0 0 17 8 14 2 5 5 12 0 5 74 94 89 19 6 287 Hours of calm in this stability class: Hours of missing Hours of missing wind measurements in this stability measurements in 0 stability class: 0 all stability classes: H-16 13 30 21 18 3 4 17 2 1 36 25 31 20 18 13 35 0 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 1999 STABILITY CLASS -MODERATELY UNSTABLE (DIFF TEMP WINDS MEASURED AT 300 FEET 300-35 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 1-3 0 0 0 0 1 0 0 0 0 0 1 1 0 0 1 0 0 4-7 2 3 1 1 0 3 7 1 2 4 2 7 6 1 3 1 0 8-12 3 3 2 3 0 2 2 1 2 3 2 8 8 4 1 4 0 13-18 19-24 > 24 TOTAL 7 10 7 4 1 5 9 2 6 16 15 26 17 9 9 10 0 4 44 48 44 11 2 153 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 11-17 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 1999 STABILITY CLASS -SLIGHTLY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 1 0 0 1 0 0 0 1 0 0 1 1 0 1 0 0 0 4-7 8-12 13-18 19-24 > 24 TOTAL 5 3 2 4 2 5 1 2 0 2 1 0 1 0 0 0 1 0 10 2 0 2 2 1 3 2 2 5 3 2 4 5 2 2 4 5 6 7 4 5 3 2 4 5 1 4 2 3 o 0 0 6 58 44 29 12 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: 11-18 0 0 0 0 Q 0 0 0 0 3 4 1 0 2 1 1 0 11 11 3 4 1 1 12 6 7 13 16 13 17 13 11 10 0 0 149 0 I I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 1999 STABILITY CLASS -NEUTRAL (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 2 2 2 1 1 1 1 0 0 2 1 3 2 3 2 7 0 4-7 5 8 4 18 1 6 10 11 5 1 5 6 9 5 2 5 0 30 101 8-12 14 2 10 8 11 3 6 8 3 11 11 9 17 16 5 9 0 143 13-18 19-24 > 24 TOTAL 12 7 6 0 2 2 1 5 10 19 20 10 16 6 7 25 0 148 6 1 0 0 0 0 0 3 10 5 4 2 2 2 1 4 0 40 40 20 22 27 15 12 18 27 29 38 41 31 46 32 17 50 0 3 465 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: 11-19 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 1999 STABILITY CLASS -SLIGHTLY STABLE WINDS MEASURED AT WIND SPEEI WIND DIRECTION 1-3 N 0 NNE 2 NE 0 ENE 0 E 1 ESE 1 SE 1 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 2 NNW 0 VARIABLE 0 TOTAL 4-7 (DIFF TEMP 300-35 FT) 300 FEET (in mph)8-12 13-18 19-24 > 24 TOTAL 2 8 22 2 6 16 4 5 12 7 11 1 6 23 11 4 12 13 4 23 13 6 12 14 0 8 20 5 8 28 4 5 39 6 13 17 11 18 18 4 9 14 5 4 18 10 10 22 0 0 0 7 80 175 278 4 2 0 0 0 2 0 2 19 27 12 0 1 0 2 2 0 73 36 28 21 19 41 32 41 34 48 69 60 36 48 27 31 44 0 2 615 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: I 11-20 0 I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 1999 STABILITY CLASS -MODERATELY STABLE- (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND DIRECTION 1-3 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 2 0 2 3 3 1 . 2 2 2 2 2 3 1 2 0 0 0 WIND SPEED (in mph) 4-7 8-12 13-18 0 8 12 2 7 12 5 2 3 6 1 0 2 4 6 3 4 14 3 9 15 12 10 5 3 3 7 2 4 10 2 8 10 7 26 17 8 31 11 4 3 4 3 9 11 0 6 14 0 0 0 27 62 135 Hours of calm in this stability class: 151 19-24 > 24 TOTAL 5 0 0 0 0 1 2 5 10 2 2 0 3 1 2 0 34 0 Hours of missing wind measurements in this stability class: 27 21 12 10 15 23 30 31 21 28 24 55 51 16 24 22 0 1 410 0 Hours of missing stability measurements in all stability classes: 0 11-21 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: JULY-SEPTEMBER 1999 STABILITY CLASS -EXTREMELY STABLE (DIFF TEMP WINDS MEASURED AT 300 FEET 300-35 FT)WIND SPEED (in mph)WIND DIRECTION 1-3 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 0 7 2 7 2 2 1 0 0 0 0 1 1 0 2 1 0 6 2 1 2 4 0 5 2 8 2 5 1 3 1 1 0 0 12 18 51 38 10 0 129 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: 11-22 0 I----- -----7 0 0 0 0 0 7 0 1 5 0 8 2 1 4 3 0 17 9 5 2 0 2 8 3 9 10 6 14 12 12 9 11 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 1999 STABILITY CLASS -EXTREMELY UNSTABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE 1-3 1 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 4-7 TOTAL 3 12 25 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 8-12 13-18 19-24 > 24 TOTAL 25 19 2 86 0 stability class: 0 all stability classes: 11-23 9 7 3 2 1 4 5 0 0 6 7 10 3 11 12 6 0 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 1999 STABILITY CLASS -MODERATELY UNSTABLE (DIFF TEMP WINDS MEASURED AT 300 FEET 300-35 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 1-3 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 4-7 8-12 0 1 0 2 1 4 3 1 1 0 0 2 0 1 0 5 0 2 0 3 0 2 6 9 3 2 1 10 2 4 2 0 0 0 13-18 19-24 > 24 TOTAL 1 0 0 2 0 0 0 2 0 0 0 5 0 0 0 4 0 0 0 1 0 0 0 2 1 0 0 2 0 1 0 7 2 3 0 8 0 10 0 13 1 4 3 10 2 3 0 20 4 1 0 10 3 0 0 14 2 1 2 11 2 5 0 9 0 0 0 0 2 19 48 18 28 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 5 120 0 Hours of missing stability measurements in all stability classes: 11-24 0 I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 1999 STABILITY CLASS -SLIGHTLY UNSTABLE (DIFF WINDS MEASURED AT 300 FEET TEMP 300-35 FT)WIND WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE 1-3 0 0 0 0 0 0 1 0 0 0 1 0 1 0 0 0 0 4-7 1 2 0 0 0 4 1 1 0 1 0 2 5 1 2 1 0 SPEED (in mph) 8-12 13-18 0 0 2 0 0 2 1 2 1 2 0 5 1 0 4 2 0 19-24 > 24 TOTAL 3 2 2 0 0 6 4 7 7 11 3 12 9 2 10 11 0 TOTAL 3 21 22 19 15 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 9 89 0 Hours of missing stability measurements in all stability classes: 11-25 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 1999 STABILITY CLASS -NEUTRAL (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 2 1 3 1 1 1 2 1 3 2 2 1 1 1 0 2 0 4-7 5 8 4 7 2 5 4 1 7 5 5 6 9 7 7 14 0 8-12 13-18 19-24 > 24 TOTAL 12 10 8 6 12 13 12 15 10 11 14 3 18 15 17 7 0 24 96 183 Hours of calm in this stability class: 25 21 8 1 0 4 7 12 27 19 12 7 22 16 12 32 0 225 5 7 3 0 0 0 0 "7 26 30 16 6 29 9 19 31 0 188 0 Hours of missing wind measurements in this stability class: 2 0 0 0 0 0 0 2 14 3 3 2 14 3 8 2 0 53 769 0 Hours of missing stability measurements in all stability classes: 11-26 51 47 26 15 15 23 25 38 87 70 52 25 93 51 63 88 0 0 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 1999 STABILITY CLASS -SLIGHTLY STABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph) WIND DIRECTION 1-3 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE 1 1 0 1 0 0 1 1 0 1 1 0 2 0 0 0 0 4-7 3 2 5 6 4 4 4 4 2 2 5 4 11 2 6 4 0 8-12 13-18 19-24 > 24 TOTAL 17 6 11 1 12 19 17 35 42 37 24 5 3 22 22 17 0 7 2 0 0 1 3 2 17 45 28 16 6 "7 13 15 8 0 0 0 0 0 0 0 0 2 30 2 7 2 1 2 1 0 0 37 18 25 13 24 38 43 74 130 80 59 22 32 49 56 36 0 9 7 9 5 7 12 19 15 11 10 6 5 8 10 12 7 0 TOTAL 9 68 152 Hours of calm in this stability class: 290 170 0 47 736 0 0 Hours of missing wind measurements in this stability class: Hours of missing stability measurements in all stability classes: 11-27 DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 1999 STABILITY CLASS -MODERATELY STABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE EN'E E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 1 0 0 1 0 1 0 1 0 0 1 0 0 0 0 2 0 4-7 1 2 2 2 1 5 0 1 4 6 1 3 2 3 3 2 0 8-12 13-18 19-24 5 6 1 0 2 2 3 1 2 5 7 13 4 6 2 1 0 15 13 1 0 2 4 9 7 5 15 28 7 8 10 22 20 0 7 38 60 166 3 0 0 0 0 6 5 1 2 3 15 6 0 2 2 8 0 53> 24 TOTAL 25 21 4 3 5 18 17 11 13 29 52 29 14 21 29 33 0 0 324 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11-28 0 I DRESDEN NUCLEAR POWER STATION PERIOD OF RECORD: OCTOBER-DECEMBER 1999 STABILITY CLASS -EXTREMELY STABLE (DIFF TEMP 300-35 FT) WINDS MEASURED AT 300 FEET WIND SPEED (in mph)WIND DIRECTION N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW VARIABLE TOTAL 1-3 0 0 0 0 0 0 0 0 1 0 1 0 1 1 0 0 0 4 4-7 8-12 13-18 19-24 > 24 TOTAL 0 2 9 2 0 13 0 5 9 0 0 14 0 4 1 0 0 5 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 1 0 2 0 0 0 2 0 1 3 0 0 4 2 0 1 0 0 4 0 0 2 0 0 2 0 2 7 3 0 13 0 2 3 0 0 5 0 2 0 0 0 3 2 2 0 0 0 5 0 1 1 1 0 3 1 1 6 1 0 9 0 0 0 0 0 0 6 24 42 Hours of calm in this stability class: 8 0 Hours of missing wind measurements in this stability class: 0 84 0 Hours of missing stability measurements in all stability classes: 0 H1-29 APPENDIX III 1999 REMP SAMPLE RESULTS rII-i I DRESDEN TABLE OF CONTENTS List of Tables .............................................................

111-3

1.0 INTRODUCTION

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

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

111-5 3.0 LISTING OF SAMPLE ANOMALIES

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

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

111-39 5.0 GRAPHS OF DATA TRENDS ..............................................

111-43 111-2 DRESDEN LIST OF TABLES No. Title Page 1 Airborne Particulates and Iodine-131

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

111-7 2 Airborne Particulates, Quarterly Composites

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

111-15 3 M ilk .....................................................................

111-19 4 Fish, Edible Portions ......................................................

111-22 5 Bottom Sedim ents .........................................................

111-24 6 Vegetables

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

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

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

111-25 7 Surface W ater ............................................................

111-28 8 W ell W ater ..............................................................

111-33 12 Milch Animals, Nearest Residence, and Nearest Livestock Census ..............

111-34 111-3 DRESDEN

1.0 INTRODUCTION

The following constitutes the current, 1999 Monthly Progress Report for the Radiological Environmental Monitoring Program conducted at the Dresden Nuclear Power Station, Morris, Illinois.

Results of completed analyses are presented in the attached tables. 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 alpha and beta, are decay corrected to the time of collection.

TLD data is provided by Commonwealth Edison Company.

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

Unusual Environmental Measurements:

None for 1999.111-4 2.0 LISTING OF MISSED SAMPLES Location Expected Sample Type Code Collection Reason Date A/I D-07 06-12-99 Air station found burned, possibly due to lightning strike during storms on 06-11-99.

Pump and sampling train destroyed.

Collector will rebuild unit. MI D-25 07-31-99 Collector inadvertantly omitted milk collection due to misunderstanding of collection frequency (collection is biweekly, not bimonthly).

Collector advised of his error by Teledyne CornEd Point of Contact; Corporate Point of Contact notified.

TLD Other 09-04-99 TLDs D-53-1 and 2 found missing during monthly visual check. Collector placed Spare #E-0005512 at D-53-1 and Spare #E0003091 at D-53-2.111-5 I 3.0 LISTING OF SAMPLE ANOMALIES Sample Type Location Collection Reason Code Date A/I D-12 01-09-99 No apparent reason for low reading of 161.1. A/I D-45 01-09-99 No apparent reason for low reading of 163.0. A D-12 02-13-99 Low reading of 159.7 possible due to work being done at substation.

A/I D-12 04-03-99 Removed pump #451 for service; regulator not adjusting properly.

A/I D-12 05-15-99 No apparent reason for low reading of 148.7. A/I D-53 05-15-99 Timer bad; installed new timer. Estimated reading of 167.7. MI D-25 05-21-99 Extra milk collection for May 1999 to resolve scheduling conflict with Braidwood Station (see below) and to satisfy biweekly requirements.

MI D-25 06-04-99 Milk collection moved from 5/29/99 to 06/04/99 due to scheduling conflict; location shared with Braidwood and should be collected same week. Permission obtained from Corporate Point of Contact.

A D-12 06-05-99 Low reading of 149.8 possibly due to construction at substation.

A/I D-12 06-12-99 Timer bad; used estimated reading of 162.7. New timer installed.

A D-07 06-19-99 Low reading of 28.3 due to recent restoration of air sampling site following fire.111-6 DRESDEN Table I. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs: ' Gross Beta = 0.01, 1-131 = 0.07 pCi/ma Units: 10"2 pCi/m 3 D-01 Onsite Station 1 Date Volume Gross Date Volume Gross Collected (m 3) Beta 1-131* Collected (m 3) Beta 1-131a 01-02-99 290 3.0 +/- 0.4; 0.7 01-09-99 283 3.7 +/- 0.4; 0.8 -0.1 +/- 0.5;0.5 01-16-99 283 3.7 +/- 0.4; 0.8 01-23-99 278 1.7 +/- 0.3; 0.4 0.1 +/- 0.4;0.4 01-30-99 281 2.8 +/- 0.4; 0.6 02-06-99 286 2.3 +/-0.3;0.5 0.2+/-0.6;0.6 02-13-99 283 2.3 +/- 0.3; 0.5 02-20-99 286 1.7 +/- 0.3; 0.5 -0.5 +/- 0.6;0.7 02-27-99 291 2.3 +/-0.3;0.5 03-06-99 281 1.7 +/- 0.3; 0.4 0.2+/-0.5;0.6 03-13-99 282 1.6 +/-0.3;0.5 03-20-99 288 1.9 +/-0.3;0.5 0.4+/-0.5;0.5 03-27-99 279 1.8,+/- 0.4; 0.5 1st Qtr. Mean+/-s.d.

2.4+/-0.7 0.1+/-0.3 04-03-99 295 1.8 +/- 0.3; 0.5 0.1 +/- 0.4; 0.4 04-10-99 288 1.7 +/-.0.3;0.4 04-17-99 271 1.5 +/- 0.4; 0.4 0.0+/-0.9;0.9 04-24-99 299 1.8 +/- 0.3; 0.4 05-01-99 277 1.5 +/- 0.4; 0.4 0. 1 +/- 0.7; 0.7 05-08-99 281 1.4 +/- 0.3; 0.4 05-15-99 285 1.9 +/- 0.4; 0.5 -0.1 +/- 0.7;0.7 05-22-99 274 1.9 +/- 0.3; 0.5 05-29-99 277 2.0 +/- 0.3; 0.5 -0.1 +/- 0.5;0.5 06-05-99 301 2.0 +/- 0.3; 0.5 06-12-99 276 1.4 +/- 0.3; 0.4 -0.2 +/- 0.5;0.5 06-19-99 283 0.9 +/- 0.3; 0.3 06-26-99 288 2.6 +/-,0.4; 0.6 -0.1 +/- 0.9;0.9 2nd Qtr. Mean+/-s.d.

1.7+/-0.4 -0.0+/-0.1 07-03-99 288 1.7 +/- 0.3; 0.4 07-09-99 242 2.8 +/- 0.4; 0.6 0.1 +/- 0.8 ;0.8 07-17-99 325 2.7 +/- 0.3; 0.6 07-24-99 279 2.1 +/-0.3;0.5 -0.l +/-0.6;0.6 07-31-99 287 2.7 +/- 0.4; 0.6 08-06-99 248 1.6 +/-0.4;0.5 0.2_+/-_0.5;0.5 08-13-99 285 2.5 +/- 0.4; 0.6 08-22-99 363 2.1 +/- 0.3; 0.5 -0.3 +/- 0.4; 0.4 08-28-99 246 3.3 +/- 0.4; 0.7 09-04-99 283 3.1 +/- 0.4; 0.7 0.0 +/- 0.7; 0.7 09-11-99 285 2.6+/-0.4;0.6 09-18-99 285 2.1 +/-0.3;0.5 0.2+/-0.7;0.7 09-25-99 286 2.4 +/- 0.4; 0.6 3rd Qtr. Mean+/-s.d.

2.4+/-0.5 0.0+/-0.2 10-02-99 285 2.6+/-0.4;0.6

-0.3-+/--0.8;0.8 10-09-99 278 2.2 +/- 0.4; 0.6 10-16-99 284 3.1 +/-0.4;0.7 0.4+/-0.6;0.6 10-23-99 286 2.2 +/- 0.3; 0.5 10-30-99 284 3.4 +/- 0.4; 0.7 -0.6 +/- 0.6;0.6 11-06-99 285 4.4 +/- 0.5; 0.9 11-13-99 281 4.6 +/- 0.4; 0.9 0.0 +/- 0.6;0.6 11-20-99 286 3.9 +/- 0.4; 0. 8 11-27-99 282 3.8 +/- 0.5; 0.8 0.0 +/- 0.5;0.5 12-04-99 287 3.0 +/- 0.4; 0.7 12-11-99 283 3.0 +/- 0.4;.0.7 -0.2 +/- 0.6;0.6 12-18-99 287 3.4 +/- 0.4; 0.7 12-24-99 245 3.6+/-0.5;0.8 0.6+/-0.5;0.6 12-31-99 298 2.6 +/- 0.4; 0.6 4th Qtr. Mean+/-s.d.

3.3+/-0.7 -0.0+/-0.4 a Volume based on a two week collection period.111-7 DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs: ' Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units: 10"2 pCi/m 3 D-02 Onsite Station 2 Date Volume Gross Date Volume Gross Collected (in 3) Beta 1-131 a Collected (M 3) Beta 1-131 a 01-02-99 291 2.7 +/- 0.4; 0.6 01-09-99 279 3.2 +/- 0.4; 0.7 -0.5+/-0.5;0.5 01-16-99 285 3.3 +/-0.4; 0.7 01-23-99 288 1.9 +/-0.3;0.5 -0.1 +/-0.4;0.4 01-30-99 280 1.4 +/- 0.3; 0.4 02-06-99 286 2.4 +/-0.3;0.5 -0.2+/-0.6;0.6 02-13-99 284 2.0+/-0.3;0.5 02-20-99 285 1.9 +/- 0.3; 0.5 -0.4 +/- 0.7; 0.7 02-27-99 292 1.8 +/- 0.3; 0.5 03-06-99 281 1.6 +/- 0.3; 0.4 0.1 +/- 0.5;0.5 03-13-99 282 1.7 +/- 0.4; 0.5 03-20-99 290 2.0 +/- 0.3; 0.5 0.4 +/- 0.5; 0.5 03-27-99 278 1.8 +/- 0.4; 0.5 1st Qtr. Mean+/-s.d.

2.1+/-0.6 -0.1+/-0.3 04-03-99 295 2.0 +/- 0.3; 0.5 -0.1 +/- 1.2; 1.2 04-10-99 289 2.0 +/- 0.3; 0.5 04-17-99 271 1.9 +/-0.4;O.5 -0.9+/-0.9;0.9 04-24-99 308 2.1 +/-0.3;0.5 05-01-99 277 1.5 +/- 0.4; 0.5 -0.1 +/- 1.3; 1.3 05-08-99 276 1.5 +/- 0.4; 0.5 05-15-99 287 1.6+/-0.3;0.5 0.1+/-0.7;0.7 05-22-99 287 2.2 +/- 0.3; 0.5 05-29-99 279 2.3 +/-0.3;0.5 -0.3 +/-0.6;0.6 06-05-99 301 2.0 +/- 0.3; 0.5 06-12-99 274 1.9 +/- 0.4; 0.5 -0.5 +/- 1.2; 1.2 06-19-99 284 0.9 +/- 0.3; 0.3 06-26-99 283 2.7 +/-0.4; 0.6 0.0+/- 1.1;1.1 2id Qtr. Mean+/-s.d.

1.9+/-0.4 -0.2+/-0.4 07-03-99 286 1.6 +/- 0.3; 0.4 07-09-99 245 2.5 +/-_0.4; 0.6 0.3+/-0.7;0.7 07-17-99 325 2.7 +/- 0.3; 0.6 07-24-99 284 2.0 +/- 0.3; 0.5 0.0 +/- 0.6; 0.6 07-31-99 287 3.0"+/- 0.4; 0.7 08-06-99 247 1.8 +/- 0.4; 0.5 0.5 +/- 0.6;0.7 08-13-99 285 2.5 +/-0.4;0.6 08-22-99 363 2.2 +/- 0.3; 0.5 -0.1 +/- 0.4;0.4 08-28-99 246 3.3 +/- 0.4; 0.7 09-04-99 283 3.4 +/- 0.4; 0.7 0.2 +/- 0.6;0.6 09-11-99 285 2.5 +/- 0.4; 0.6 09-18-99 286 3.0+/-0.4;0.6

-0.3+/-0.8;0.8 09-25-99 290 2.6 +/- 0.4; 0.6 3rd Qtr. Mean+/-s.d.

2.5+/-0.5 0.1+/-0.3 10-02-99 284 2.6 +/- 0.4; 0.6 0.4 +/- 0.6;0.6 10-09-99 279 2.3 +/- 0.4; 0.6 10-16-99 287 3.3 +/-0.4;0.7 -0.0+/-0.7;0.7 10-23-99 283 2.4 +/- 0.4; 0.6 10-30-99 288 3.9 +/- 0.4; 0.8 0.2 +/- 0.5 ;0.5 11-06-99 285 4.2 +/- 0.5; 0.9 11-13-99 287 4.5 +/- 0.4; 0.9 -0.2 +/- 0.6;0.6 11-20-99 286 3.9 +/- 0.4; 0.8 11-27-99 281 4.3 +/-0.5;0.9 -0.2+/-0.4;0.4 12-04-99 286 3.3 +/- 0.4; 0.7 12-11-99 284 3.3 +/-0.4; 0.7 0.4+/-0.6;0.6 12-18-99 286 3.8 +/- 0.4; 0.8 12-24-99 246 3.9 +/- 0.5; 0.9 -0.1 +/- 0.5;0.5 12-31-99 286 3.0 +/- 0.4; 0.7 4th Qtr. Mean+/-s.d.

3.5+/-0.7 0.1+/-0.3 8 Volume based on a two week collection period.11I-8 DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs: ' Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units: 10-2 pCi/m 3 D-03 Onsite Station 3 Date Volume Gross Date Volume Gross Collected (m 3) Beta 1-131a Collected (m 3) Beta 1-131 a 01-02-99 291 2.8 +/-_0.4;0.6 01-09-99 279 2.9 +/--0.4;0.7 0.8-+/-0.5;0.5 01-16-99 276 2.9-+/-0.4;0.6 01-23-99 288 1.4 +/- 0.3; 0.4 -0.4 +/- 0.5; 0.5 01-30-99 280 2.8 +/- 0.4; 0.6 02-06-99 291 2.3 +/- 0.3; 0.5 0.4 +/- 0.6;0.6 02-13-99 284 2.0 +/- 0.3; 0.5 02-20-99 285 1.7_+/-0.3;0.5 0.1_+/-.0.6;0.6 02-27-99 291 1.8 +/-_0.3;0.5 03-06-99 282 1.5 +/-_0.3;0.4

-0.1 +/-_0.6;0.6 03-13-99 281 1.3 +/-_0.3;0.4 03-20-99 290 1.7 +/- 0.3; 0.4 -0.0 +/- 0.6;0.6 03-27-99 278 1.3 +/- 0.3; 0.4 1st Qtr.

2.0+/-0.6 0.1+/-0.4 04-03-99 295 2.4 +/- 0.3; 0.6 -0.3-+/-0.7;0.7 04-10-99 285 1.7 +/- 0.3;0.4 04-17-99 271 1.8 +/-_0.4;0.5 0.2_+/-0.8;0.8 04-24-99 298 1.8 +/- 0.3; 0.4 05-01-99 276 1.6 +/- 0.4; 0.5 0.1 +/- 0.7; 0.7 05-08-99 280 1.7 +/- 0.4; 0.5 05-15-99 287 1.8 +/- 0.4; 0.5 0.0+/- 0.6;0.6 05-22-99 272 2.1 +/- 0.3; 0.5 05-29-99 280 1.7 +/- 0.3; 0.4 -0.4 +/- 0.6;0.6 06-05-99 299 2.0 +/- 0.3; 0.5 06-12-99 265 2.0 +/- 0.4; 0.5 0.5 +/- 0.8 ;0.8 06-19-99 284 0.9_+/-.0.3;0.3 06-26-99 284 2.3 +/-_0.4;0.5 0.4-+/- 1.2;1.2 2nd Qtr. Mean+/-s.d.

1.8+/-0.4 0.1+/-0.3 07-03-99 285 1.7 +/- 0.3; 0.4 07-09-99 244 2.5 t+/-0.4;0.6 0.0_+/-0.7;0.7 07-17-99 324 2.7 +/- 0.3; 0.6 07-24-99 280 1.3 +/-_0.3;0.4

-0.4_+/-.0.6;0.6 07-31-99 287 2.6 +/- 0.4; 0.6 08-06-99 247 1.6 +/- 0.4; 0.5 -0.2 +/- 0.6; 0.6 08-13-99 285 2.5 +/- 0.4; 0.6 08-22-99 363 2.1 +/--0.3;0.5 0.2_+/-_0.3;0.3 08-28-99 246 2.8 +/- 0.4; 0.6 09-04-99 284 2.9 +/- 0.4; 0.7 -0.1 +/- 0.8 ;0.8 09-11-99 284 2.8_+/- 0.4;0.6 09-18-99 285 2.5 +/- 0.3; 0.6 0.2 +/- 0.7;0.7 09-25-99 292 2.3 +/- 0.4; 0.6 3rd Qtr. Mean+/-s.d.

2.3+/-0.5 -0.1+/-0.2 10-02-99 282 2.5 +/- 0.4; 0.6 -0.1 +/- 0.8 ;0.8 10-09-99 280 2.3 +/- 0.4; 0.6 10-16-99 287 3.5 +/-_0.4;0.7 0.3-+/-0.8;0.8 10-23-99 283 2.2 +/- 0.4; 0.5 10-30-99 288 3.3 +/- 0.4; 0.7 -0.4 +/- 0.6;0.6 11-06-99 284 4.3 +/- 0.5; 0.9 11-13-99 287 4.1 +/-.0.4;0.8

-0.0+/-0.5;0.5 11-20-99 286 3.6 +/- 0.4; 0.8 11-27-99 282 4.5 +/- 0.5; 1.0 0.3 +/-0.5;0.5 12-04-99 286 3.2 +/- 0.4; 0.7 12-11-99 284 3.0 +/- 0.4; 0.7 -0.1 +/- 0.7;0.7 12-18-99 285 2.7 +/- 0.4; 0.6 12-24-99 246 3.0 +/- 0.5; 0.7 0.7 +/- 0.5;0.5 12-31-99 286 3.0 +/- 0.4; 0.7 4th Qtr. Mean+/-s.d.

3.2+/-0.7 0.1+/-0.3' Volume based on a two week collection period.I11-9!

DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs: Gross Beta = 0.01, 1-131 = 0.07 pCi/m 3 Units: 10.2 pCi/m 3 D-04 Collins Road Date Volume Gross Date Volume Gross Collected (m 3) Beta I-131" Collected (m 3) Beta 1-131a 01-02-99 290 3.4 +/- 0.4; 0.7 01-09-99 282 3.5 +/- 0.4; 0.7 0.0 +/- 0.5;0.5 01-16-99 283 3.8 +/- 0.4; 0.8 01-23-99 288 1.9 +/-_0.3;0.5 0.0+/-0.6;0.6 01-30-99 271 3.0 +/- 0.4; 0.7 02-06-99 287 2.5 +/-0.3;0.6 -0.0+/-0.7;0.7 02-13-99 283 2.7 +/-_0.3;0.6 02-20-99 286 2.4 +/-.0.4; 0.6 -0.0 +/- 0.6;0.6 02-27-99 291 2.1 +/- 0.3; 0.5 03-06-99 281 1.9 +/- 0.3; 0.5 -0.1 +/- 0.5;0.5 03-13-99 282 2.0 +/- 0.4; 0.5 03-20-99 288 2.1 +/-0.3;0.5 -0.1 +/-0.5;0.5 03-27-99 279 1.7 +/- 0.4; 0.5 1st Qtr. Mean+/-s.d.

2.5+/-0.7 -0.0+/-0.1 04-03-99 295 2.4 +/-0.3;0.5 0.1 +/- 1.4;1.4 04-10-99 288 1.7 +/-0.3;0.4 04-17-99 271 1.9 +/- 0.4; 0.5 -0.7 +/- 0.9;0.9 04-24-99 299 1.8 +/- 0.3; 0.4 05-01-99 277 1.3+/-0.3;0.4

-1.1 +/- 1.1;1.1 05-08-99 281 1.6 +/- 0.4; 0.5 05-15-99 285 2.0 +/- 0.4; 0.5 -0.3 +/- 0.7; 0.7 05-22-99 288 2.2 +/- 0.3; 0.5 05-29-99 277 1.9 +/- 0.3; 0.5 -0.3 +/- 0.7;0.7 06-05-99 302 2.3 +/- 0.3; 0.5 06-12-99 275 1.7 +/- 0.3; 0.5 0.4 +/- 0.9;0.9 06-19-99 284 1.2 +/- 0.3; 0.4 06-26-99 288 2.6 +/- 0.4; 0.6 -0.0 +/- 0.8; 0.8 2nd Qtr. Mean+/-s.d.

1.9+/-0.4 -0.3+/-0.5 a Volume based on a two week collection period.rn-10 07-03-99 285 1.8 +/- 0.3; 0.5 07-09-99 243 2.6 +/- 0.4;0.6 -0.6 +/- 0.9;0.9 07-17-99 325 2.8 +/-_0.3;0.6 07-24-99 274 1.8 +/- 0.3; 0.4 0.2+/-0.6;0.6 07-31-99 282 2.5 +/- 0.4; 0.6 08-06-99 248 2.1 +/-0.4; 0.6 -0.1 +/- 0.6;0.6 08-13-99 285 2.8 +/-0.4;0.6 08-22-99 363 2.3 +/-0.3;0.5 0.3 +/-0.4;0.4 08-28-99 246 3.5 +/- 0.4; 0.8 09-04-99 283 3.4 +/- 0.4; 0.7 -0.1 +/- 0.7;0.7 09-11-99 285 3.0 +/- 0.4; 0.7 09-18-99 285 2.8 +/- 0.4; 0.6 -0.3 +/- 0.7;0.7 09-25-99 291 2.6 +/- 0.4; 0.6 3rd Qtr. Mean+/-s.d.

2.6+/-0.5 -0.1+/-0.3 10-02-99 285 2.8 +/-0.4;0.6 1.0+/-0.8;0.8 10-09-99 278 2.6 +/- 0.4; 0.6 10-16-99 288 3.4 +/- 0.4; 0.7 -0.1 +/- 0.7;0.7 10-23-99 282 1.9 +/- 0.3; 0.5 10-30-99 288 3.8 +/- 0.4; 0.8 -0.1 +/- 0.5 ;0.5 11-06-99 285 3.8 +/- 0.4; 0.8 11-13-99 285 4.3 +/-0.4;0.9 0.0+/-0.5;0.5 11-20-99 286 3.7 +/-_0.4;0.8 11-27-99 282 4.6 +/- 0.5; 1.0 0.0 +/- 0.5;0.5 12-04-99 287 3.3 +/- 0.4; 0.7 12-11-99 283 3.5 +/-0.4;0.8 0.2_+/-0.5;0.5 12-18-99 287 3.9+/-0.4;0.8 12-24-99 245 4.1 +/-_0.5;0.9

-0.6 +/-0.5;0.5 12-31-99 288 3.3 +/- 0.4; 0.7 4th Qtr. Mean+/-s.d.

3.5+/-0.7 0.0+/-+0.5 DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs:" Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units: 10.2 pCi/m 3 D-07 Clay Products Date Volume Gross Date Volume Gross Collected (m 3) Beta 1-131a Collected (mi) Beta 1-131 a 01-02-99 290 2.7 +/- 0.4; 0.6 01-09-99 279 3.3 +/- 0.4; 0.7 -0.2 +/- 0.5;0.5 01-16-99 282 3.6 +/- 0.4; 0.8 01-23-99 287 1.9 +/- 0.3; 0.5 -0.1 +/- 0.5;0.5 01-30-99 281 2.9 +/- 0.4; 0.6 02-06-99 287 2.8 +/- 0.4; 0.6 -0.5 +/- 0.6;0.6 02-13-99 289 2.3 +/-0.3;0.5 02-20-99 290 1.9 +/--0.3;0.5

-0.1 +/--0.6;0.6 02-27-99 291 2.0 +/- 0.3; 0.5 03-06-99 282 1.9 +/- 0.3; 0.5 0.0+/-0.5;0.5 03-13-99 283 1.8 +/- 0.4; 0.5 03-20-99 290 2.2 +/- 0.3; 0.5 0.1 +/- 0.6;0.6 03-27-99 278 1.7 +/- 0.4; 0.5 1st Qtr. Mean++/-s.d.

2.4+/-0.6 -0.1+/-0.2 04-03-99 294 2.4 +/- 0.3; 0.5 0.0 +/- 0.7; 0.7 04-10-99 291 2.1 +/-0.3;0.5 04-17-99 277 1.4 +/- 0.3; 0.4 0.4+/- 0.9;0.9 04-24-99 292 1.7 +/- 0.3; 0.4 05-01-99 276 1.9 +/- 0.4; 0.5 -0.2 +/- 0.6;0.6 05-08-99 280 1.8 +/- 0.4; 0.5 05-15-99 287 1.4 +/- 0.3; 0.4 -0.2 +/- 0.7;0.7 05-22-99 281 2.2 +/- 0.3; 0.5 05-29-99 280 2.0 +/- 0.3; 0.5 0.2 +/- 0.7; 0.7 06-05-99 289 2.2 +/- 0.3; 0.5 06-12-99 NS b 06-19-99 48.' 0.8 +/- 1.4; 1.4 06-26-99 289 2.4 -t 0.4; 0.6 -0.5 +/-2.0;2.0 2nd Qtr. Mean+/-s.d.

1.9+/-0.5 -0.0+/-0.3 07-03-99 271 1.8 +/- 0.3; 0.5 07-09-99 254 2.6 +/-0.4;0.6 0.0+/-0.7;0.7 07-17-99 319 3.2 +/- 0.4; 0.7 07-24-99 284 2.2 +/--0.3;0.5 0.2_+/-0.5;0.5 07-31-99 287 3.0 +/- 0.4; 0.7 08-06-99 247 1.9 +/- 0.4; 0.5 0.1 +/- 0.6;0.6 08-13-99 286 2.7 +/- 0.4; 0.6 08-22-99 369 2.4 +/-0.3;0.5 -0.2_+/-.0.4;0.4 08-28-99 246 3.7 +/- 0.4; 0. 8 09-04-99 284 3.5 +/-.0.4;0.8

-0.4-+/-0.6;0.6 09-11-99 289 3.1 +/-.0.4; 0.7 09-18-99 285 2.2 +/- 0.3; 0.5 -0.0 +/- 0.7;0.7 09-25-99 292 2.4 +/- 0.4; 0.6 3rd Qtr. Meanrs.d.

2.7+/-0.6 -0.0+/-_0.2 10-02-99 286 2.6 +/- 0.4; 0.6 -0.0-+/-0.8;0.8 10-09-99 276 2.7 +/- 0.4; 0.6 10-16-99 286 3.6 +/--0.4;0.8 0.4_+/-0.7;0.7 10-23-99 283 2.7 +/- 0.4; 0.6 10-30-99 288 3.8 +/- 0.4; 0.8 -0.1 +/- 0.5;0.5 11-06-99 284 4.7 t 0.5; 1.0 11-13-99 287 5.0_+/-0.4; 1.0 -0.2_+/-.0.6;0.6 11-20-99 283 3.9 +/- 0.4; 0.8 11-27-99 282 4.9 +/- 0.5; 1.0 -0.1 +/--0.5;0.5 12-04-99 286 3.2 +/- 0.4; 0.7 12-11-99 293 3.6 +/- 0.4; 0.8 0.1 +/- 0.6;0.6 12-18-99 285 3.7 +/- 0.4; 0.8 12-24-99 246 3.4 +/-0.5;0.8 -0.3 +/-_0.6;0.6 12-31-99 279 3.1 +/-_0.4;0.7 4th Qtr. Mean+/-s.d.

3.6+/-0.8 -0.0+/-0.2 a Volume based on a two week collection period. b "NS" = No sample; air station burned, possible due to lightning strike. SVolume low due to recent restoration of air sampling site.rn-11 DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs: ' Gross Beta = 0.01, 1-131 = 0.07 pCi/m 3 Units: 10 -2 pCi/m 3 D-12 (C) Lisbon Date Volume Gross Date Volume Gross Collected (m 3) Beta 1-131 a Collected (M 3) Beta 1-131'01-02-99 289 3.1 +/- 0.4; 0.7 01-09-99 2 7 3 b 3.3 +/-0.4;0.7 -0.3 +/-0.5;0.5 01-16-99 287 3.1 +/-0.4;0.7 01-23-99 278 1.9 +/- 0.3; 0.5 0.1 +/- 0.4;0.4 01-30-99 276 2.4 +/- 0.4; 0.6 02-06-99 287 2.7 +/- 0.3; 0.6 0.7 +/- 0.7; 0.7 02-13-99 271c 2.1 +/-0.3;0.5 02-20-99 285 2.3 +/-_0.4; 0.5 -0.3 +/- 0.7; 0.7 02-27-99 288 1.9 +/- 0.3; 0.5 03-06-99 279 2.0 +/- 0.3; 0.5 -0.0 +/- 0.6; 0.6 03-13-99 282 2.0 +/- 0.4; 0.5 03-20-99 290 2.8 +/-_0.4;0.6 0.0+/-0.6;0.6 03-27-99 292 2.3 +/- 0.4; 0.5 1st Qtr. Mean+/-s.d.

2.4+/-0.5 0.0+/-0.4 04-03-99 3 1 2 d 2.7 +/- 0.3; 0.6 0.2+/- 1.0;1.0 04-10-99 296 2.1 +/-0.3;0.5 04-17-99 272 2.4 +/- 0.4; Q.6 0.4 +/- 0.9;0.9 04-24-99 280 1.8 +/- 0.3; 0.5 05-01-99 293 1.7 +/- 0.3; 0.5 -0.5 +/- 1.0; 1.0 05-08-99 280 1.8 +/- 0.4; 0.5 05-15-99 2 5 2 b 2.3 +/-0.4;0.6 -0.3+/-0.7;0.7 05-22-99 286 1.9 +/- 0.3; 0.5 05-29-99 281 1.7 +/- 0.3; 0.4 -0.3 +/- 0.6; 0.6 06-05-99 254c 2.2 +/- 0.3; 0.5 06-12-99 276e 1.7 +/-0.3;0.5 0.8+/- 1.1;1.1 06-19-99 284 1.3 +/-_0.3;0.4 06-26-99 285 2.6 +/- 0.4; 0.6 -0.3 +/- 1.0; 1.0 2nd Qtr. Mean+/-s.d.

2.0+/-0.4 -0.0+/-0.5 07-03-99 283 2.1 +/- 0.3; 0.5 07-09-99 257 2.5+/-0.4;0.6 0.0+/-0.7;0.7 07-17-99 314 2.5+/-0.3;0.6 07-24-99 284 2.0 +/- 0.3; 0.5 0.1 +/- 0.5;0.5 07-31-99 287 2.4 +/- 0.4; 0.6 08-06-99 244 2.0 +/- 0.4; 0.6 0.5 +/- 0.7; 0.7 08-13-99 290 2.7 +/- 0.4; 0.6 08-22-99 362 2.3 +/-0.3;0.5 0.1 +/-0.4;0.4 08-28-99 246 3.8 +/- 0.4; 0.8 09-04-99 284 3.6 +/- 0.4; 0.8 -0.1 +/- 0.7;0.7 09-11-99 284 3.1 +/-_0.4;0.7 09-18-99 285 2.8 +/- 0.4; 0.6 -0.6 +/- 0.9;0.9 09-25-99 292 2.4 +/- 0.4; 0.6 3rd Qtr. Mean+/-s.d.

2.6+/-0.6 -0.0+/-_0.3 10-02-99 279 2.8 +/- 0.4; 0.6 -0.6- +/-0.6;0.7 10-09-99 283 2.8 +/- 0.4; 0.6 10-16-99 286 2.8 +/-0.4;0.6 -0.4+/-0.8;0.8 10-23-99 288 2.0 +/- 0.3; 0.5 10-30-99 288 3.3 +/- 0.4; 0.7 0.2 +/- 0.5;0.5 11-06-99 284 4.0 +/- 0.5; 0.8 11-13-99 287 4.4 +/- 0.4; 0.9 -0.1 +/- 0.6;0.6 11-20-99 286 3.5 +/- 0.4; 0.7 11-27-99 282 4.3 +/- 0.5; 0.9 -0.3 +/- 0.5;0.5 12-04-99 286 2.6 +/- 0.4; 0.6 12-11-99 284 3.0 +/- 0.4; 0.7 0.8 +/- 0.6;0.6 12-18-99 280 3.6 +/- 0.4; 0.8 12-24-99 248 3.6 +/- 0.5; 0.8 -0.2 +/- 0.5;0.5 12-31-99 284 2.9 +/- 0.4; 0.7 4th Qtr. Mean+/-s.d.

3.3+/-0.7 -0.1+/-0.4 a Volume based on a two week collection period. b Volume low; no apparent reason for low reading.

SVolume low; low meter reading possibly due to work being done at substation.

d Removed pump for repair; regulator not adjusting properly.

Timer bad; used estimated reading of 162.7 for volume calculation.

Installed new timer. M -12 DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs:" Gross Beta = 0.01, 1-131 = 0.07 pCi/m 3 Units: 10" 2 pCi/m 3 D-45 McKinley Woods Road Date Volume Gross Date Volume Gross Collected (m 3) Beta 1-131a Collected (m 3) Beta 1-131a 01-02-99 286 2.8 +/- 0.4; 0.6 01-09-99 2 7 6 b 3.6-+/-0.4;0.8 0.4+/-0.4;0.4 01-16-99 282 3.7 +/- 0.4; 0.8 01-23-99 278 1.9 +/-_0.3; 0.5 0.0+/-0.5;0.5 01-30-99 286 2.0 +/- 0.3; 0.5 02-06-99 282 2.6 +/-0.3;0.6 -0.7_+/-0.7;0.7 02-13-99 284 2.4 +/- 0.3; 0.5 02-20-99 285 2.1 +/-0.3;0.5 -0.1 +/-0.6;0.6 02-27-99 293 2.1 +/--0.3;0.5 03-06-99 279 1.9 +/- 0.3; 0.5 0.1 +/- 0.6;0.6 03-13-99 282 1.8 +/- 0.4; 0.5 03-20-99 285 1.9 +/- 0.3; 0.5 -0.3 +/- 0.6;0.6 03-27-99 283 1.7 +/- 0.4; 0.5 1st Qtr. Mean+/-s.d.

2.3+/-0.7 -0.1+/-0.4 04-03-99 288 2.0 +/- 0.3; 0.5 -0.2 +/- 0.7;0.7 04-10-99 296 1.5 +/-_0.3;0.4 04-17-99 271 1.3 +/-_0.3;0,.4

-0.3 +/-0.5;0.5 04-24-99 280 1.6 +/- 0.3; 0.4 05-01-99 294 1.6 +/- 0.3; 0.5 -0.1 +/- 0.5;0.5 05-08-99 280 1.4 +/- 0.3; 0.4 05-15-99 287 1.5 +/--0.3;0.4 0.3 +/-0.6;0.6 05-22-99 281 2.1 +/- 0.3;0.5 05-29-99 280 2.0 +/- 0.3; 0.5 -0.2 +/- 0.7; 0.7 06-05-99 299 2.0 +/- 0.3; 0.5 06-12-99 275 1.6 +/- 0.3; 0.4 0.1 +/- 0.8; 0.8 06-19-99 284 1.0 +/- 0.3; 0.4 06-26-99 285 2.5 +/- 0.4;0.6 0.5_+/- 1.4;1.4 2nd Qtr. Mean+/-s.d.

1.7+/-0.4 0.0+/-0.3 07-03-99 283 1.9 +/- 0.3; 0.5 07-09-99 260 2.3 +/-.0.3;0.5 0.2_+/-0.5;0.5 07-17-99 311 2.6_+/-0.3;0.6 07-24-99 294 2.7_+/-0.3;0.6 0.1 +/- 1.1;1.1 07-31-99 287 2.8 +/- 0.4; 0.7 08-06-99 248 1.9 +/-_0.4;0.5

-0.2_+/-.0.7;0.7 08-13-99 290 2.4 +/- 0.4; 0.6 08-22-99 362 2.0 +/- 0.3; 0.4 0.0+/-0.4;0.4 08-28-99 246 3.4 +/- 0.4; 0.7 09-04-99 284 3.0 +/- 0.4; 0.7 -0.0 +/- 0.6; 0.6 09-11-99 284 3.0 +/- 0.4; 0.7 09-18-99 285 2.8 +/- 0.4; 0.6 -0.2 +/- 0.7;0.7 09-25-99 292 2.5 +/- 0.4; 0.6 3rd Qtr. Mean+/-s.d.

2.6+/-0.5 -0.0+/-0.2 10-02-99 279 2.5 +/-0.4;0.6 0.2+/-0.7;0.7 10-09-99 283 2.3 +/- 0.4; 0.6 10-16-99 286 3.1 +/-_0.4;0.7

-0.0_+/-0.8;0.8 10-23-99 283 2.4 +/- 0.4; 0.6 10-30-99 284 3.8 +/- 0.4; 0.8 0.1 +/- 0.6;0.6 11-06-99 279 3.3 +/- 0.4; 0.7 11-13-99 287 3.6 +/- 0.4; 0.7 -0.1 +/- 0.6;0.6 11-20-99 286 3.8 +/- 0.4; 0.8 11-27-99 277 4.6 +/- 0.5; 1.0 0.2_+/-0.4;0.4 12-04-99 286 3.0 +/- 0.4; 0.7 12-11-99 284 3.5 +/- 0.4; 0.8 0.4+/-0.5;0.5 12-18-99 284 3.3 +/-0.4;0.7 12-24-99 246 3.2-+/-0.5;0.7

-0.3_+/-0.5;0.5 12-31-99 285 2.8 +/-0.4;0.6 4th Qtr. Mean+/-s.d.

3.2+/-0.6 0.1+/-0.2' Volume based on a two week collection period. b Volume low; no apparent reason for low reading.111 -13 I DRESDEN Table 1. Airborne Particulates and Iodine Cartridges Collection:

Airborne Particulates

-Continuous; weekly exchange Iodine cartridges

-Continuous; biweekly exchange ODCM Required LLDs:' Gross Beta = 0.01, 1-131 = 0.07 pCi/m3 Units: 10 -2 pCi/m 3 D-53 Grundy County Road Date Volume Gross Date Volume Gross Collected (M 3) Beta 1-131 a Collected (m 3) Beta 1-131 a 01-02-99 291 3.4 +/- 0.4; 0.7 01-09-99 283 3.5 _+0.4;0.7 0.6_+/-0.4;0.4 01-16-99 282 3.5 +/- 0.4; 0.7 01-23-99 288 1.9 +/-.0.3;0.5

-0.3 +/-0.5;0.5 01-30-99 280 2.6 +/- 0.4; 0.6 02-06-99 286 2.9 +/- 0.4; 0.6 -0.4 +/- 0.8; 0.8 02-13-99 283 2.0+/-0.3;0.5 02-20-99 286 2.1 +/-_0.3;0.5 0.1+/-0.7;0.7 02-27-99 282 2.0 +/- 0.3; 0.5 03-06-99 281 1.9 +/- 0.3; 0.5 -0.2+/-0.6;0.6 03-13-99 282 1.9 +/- 0.4; 0.5 03-20-99 288 2.4_+/-.0.3;0.6 0.0+/-0.5;0.5 03-27-99 279 1.8 +/- 0.4; 0.5 1st Qtr. Mean+/-s.d.

2.5+/-0.7 -0.0+/-0.3 04-03-99 296 2.5 +/- 0.3; 0.6 0.7 +/-1.4; 1.4 04-10-99 288 1.9 +/- 0.3; 0.5 04-17-99 273 1.6 +/- 0.4; 0.4 -0.1 +/- 0.5;0.5 04-24-99 297 1.8 +/- 0.3; 0.4 05-01-99 277 1.6+/- 0.4; 0.5 -0.2t -1.1; 1.1 05-08-99 281 1.4 +/- 0.3; 0.4 05-15-99 2 8 3 b 2.0 +/- 0.4; 0.5 0.8 +/- 0.6;0.6 05-22-99 288 2.2 +/- 0.3; 0.5 05-29-99 279 1.9 +/-0.3;0.5 0.2+/-0.7;0.7 06-05-99 300 2.0 +/- 0.3; 0.5 06-12-99 276 1.6 +/- 0.3; 0.4 -0.2 +/- 0.4;0.4 06-19-99 283 1.0 +/- 0.3; 0.4 06-26-99 287 2.4 +/- 0.4; 0.6 0.2 +/- 1.4; 1.4 2nd Qtr. Mean+/-s.d.

1.8+/-0.4 0.2+/-0.4 07-03-99 292 1.7 +/- 0.3; 0.4 07-09-99 246 2.1 +/--0.4;0.5

-0.2- +/-0.8;0.8 07-17-99 324 2.9 +/-.0.3;0.6 07-24-99 284 2.2 +/- 0.3; 0.5 -0.2 +/- 0.6; 0.6 07-31-99 287 2.5 +/- 0.4; 0.6 08-06-99 248 1.2 +/- 0.4; 0.4 0.4-+/--0.6;0.6 08-13-99 289 1.7 +/- 0.3; 0.4 08-22-99 363 1.6 +/- 0.2; 0.4 -0.1 +/- 0.4; 0.4 08-28-99 246 2.2 +/- 0.4; 0.5 09-04-99 283 1.8 +/- 0.4; 0.5 -0.0 +/- 0.6;0.6 09-11-99 285 2.2_+/-+0.4;0.5 09-18-99 280 2.4 +/- 0.3; 0.6 -0.1 +/- 0.6;0.6 09-25-99 291 1.9 +/- 0.4; 0.5 3rd Qtr. Mean+/-s.d.

2.0+/-0.4 -0.0+/-_0.2 10-02-99 285 1.4 +/- 0.3; 0.4 0.0 +/- 0.7;0.7 10-09-99 278 2.4 +/- 0.4; 0.6 10-16-99 287 3.2 +/- 0.4; 0.7 -0.4 t 0.8;0.8 10-23-99 282 2.2 +/- 0.4; 0.5 10-30-99 288 3.3 +/- 0.4; 0.7 0.1 +/- 0.6;0.6 11-06-99 281 4.0 +/- 0.5; 0.9 11-13-99 285 3.9 +/- 0.4; 0.8 -0.2 +/- 0.6;0.6 11-20-99 286 3.1 +/--0.4;0.7 11-27-99 277 4.7 +/-_0.5; 1.0 0.1 +/-_0.5;0.5 12-04-99 287 3.2 +/- 0.4; 0.7 12-11-99 283 3.1 +/-_0.4; 0.7 0.3 +/-0.6;0.6 12-18-99 282 3.3 +/- 0.4; 0.7 12-24-99 246 3.6_+/-0.5;0.8

-0.3-+/-0.5;0.5 12-31-99 288 2.9 +/- 0.4; 0.7 4th Qtr. Mean+/-s.d.

3.2+/-0.8 -0.0+/-0.2 a Volume based on a two week collection period. b Timer bad; used estimated reading of 167.7; replaced timer.M -14 DRESDEN 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; BaILa-140

= 0.025 pCi/m 3 Units: 104 pCi/m 3 Sample Description and Concentration D-01 Onsite Station 1 1st Qtr.CDAP-2591,2 3,698 1.8 +/- 6.2; 6.2 -3.2+/- 13.2; 13.2 2.1 +/- 6.8; 6.8 5.8 +/- 14.0; 14.0 -3.4-+/- 12.2; 12.2 -8.1 +/- 9.1; 9.3 -2.3 +/- 222.3; 222.3 -1.7 +/- 4.6; 4.6 -30.8 +/- 27.8; 28.4 1st Qtr.CDAP-2593 3,708 -3.6 +/- 5.2; 5.2 -22.1+/- 88.3; 88.4 7.4+/- 8.2; 8.3 0.4 +/- 0.7; 0.7 8.9+/- 10.6; 10.7 -1.9+/- 12.7; 12.7 2.7-+/- 60.8; 60.8 -0.6 +/- 6.2; 6.2 -37.8+/- 110.0; 110.2 2nd Qtr.CDAP-5168 3,703 -0.2 +/- 4.4; 4.4 -7.1 +/- 64.8; 64.8 1.3 +/- 5.3; 5.3 0.4+/- 2.8; 2.8 -2.0-+/- 10.4; 10.4 -3.8 +/- 6.7; 6.7 5.4+/- 11.9; 11.9 0.1 +/- 4.4; 4.4 -23.9 +/- 237.0; 237.0 D-02 Onsite Station 2 2nd Qtr.CDAP-5169 3,719 3.7 +/- 4.7; 4.7 8.3 +/- 8.3; 8.5 -3.2+/- 6.1; 6.1 3.2+/- 40.8; 40.8 -1.0+/- 12.2; 12.2 1.1 +/- 6.7; 6.7 -0.6 +/- 2.4; 2.4 3.9+/- 4.2; 4.3 -20.4 +/- 24.1; 24.4 3rd Qtr.CDAP-8259 3,709 2.7+/- 3.4; 3.5 6.0 +/- 11.6; 11.6 1.1 +/- 5.0; 5.0 1.3 +/- 20.0; 20.0 -3.9 +/- 9.3; 9.3 -2.8 +/- 7.6; 7.6 0.3 +/- 0.2; 0.2 1.5 +/- 3.7; 3.7 3.3+/- 48.1; 48.1 3rd Qtr.CDAP-8260,1 3,718 -0.9 +/- 3.2; 3.2 0.1 +/- 2.4; 2.4 -2.7 +/- 3.8; 3.9 -0.7 +/- 1.3; 1.3 17.7+/- 9.5; 10.0 -2.3-+/- 7.0; 7.0 -0.4 +/- 1.5; 1.5 0.9 +/- 3.0; 3.0 -0.6 +/- 204.2; 204.2 4th Qtr.CDAP-10183 3,957 0.7 +/- 2.9; 2.9 1.6 +/- 5.2; 5.2 3.5-+/- 2.6; 2.7 2.0 +/- 3.3; 3.4 -7.9-+/- 6.4; 6.6 -7.8 + 5.5; 5.7 4.3 +/- 2.9; 3.0 0.2 +/- 3.2; 3.2 -18.4+/- 3.5; 4.8 4th Qtr.CDAP- 10184 3,954 2.9 +/- 3.6; 3.7 1.8 +/- 7.4; 7.5 6.2 +/- 3.5; 3.6 3.7 +/- 4.7; 4.7 -1.7-+/- 8.3; 8.3 4.1 +/- 3.4; 3.4 1.5-+/- 4.2; 4.2 -3.1+/- 4.1; 4.1 2.2+/- 5.0; 5.0 M -15 1999 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 1999 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 I DRESDEN 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; BaILa-140

= 0.025 pCi/m 3 Units: 10-4 pCi/m 3 Sample Description and Concentration D-03 Onsite Station 3 lst Qtr.CDAP-2594 3,703 2.8+/- 7.1; 7.1 -6.3 +/- 8.6; 8.7 3.3 +/- 7.7; 7.7 -3.8 +/- 9.7; 9.7 -1.0+/- 13.5; 13.5 0.8+/- 15.0; 15.0 -2.1 +/- 5.4; 5.4 1.7+/- 5.1; 5.1 -10.6+/- 128.0; 128.0 2nd Qtr.CDAP-5170 3,683 4.3_+/- 5.1; 5.2 -10.1 +/- 54.3; 54.3 -2.3 +/- 4.2; 4.2 1.9 +/- 3.5; 3.5 3.5 +/- 8.5; 8.5 7.7 +/- 7.4; 7.5 -1.7_+/- 3.4; 3.4 -1.8+/- 3.9; 3.9 17.2+/- 198.0; 198.0 3rd Qtr.CDAP-8262 3,714-1.7_+/- 4.0; 4.0 -10.4 +/- 48.9; 48.9 -1.5+/- 4.5; 4.5 -1.5+/- 1.2; 1.2 -4.7+/- 6.8; 6.8 3.7 +/- 8.2; 8.2 -3.0_+/- 5.0; 5.0 -1.5+/- 4.5; 4.5 -7.4+/- 29.8; 29.8 4th Qtr.CDAP-10185 3,953 3.0+/- 3.1; 3.2 -8.4_+/- 7.4; 7.6 -2.0 +/- 3.4; 3.4 0.8++/- 3.8; 3.8 -27.4+/- 9.1; 10.3 -3.1+/- 3.8; 3.8 -1.5+/- 3.9; 3.9 0.7 +/- 2.9; 2.9 -13.3 +/- 3.9;.4.5 1st Qtr.CDAP-2595 3,699 4.3 +/- 7.8; 7.8 -23.5 +/- 41.3; 41.5 3.3_+/- 11.4; 11.4 -7.0 +/- 8.1; 8.2 6.0 +/- 20.2; 20.2 3.1 +/- 14.6; 14.6 2.7+/- 14.2; 14.2 2.1 +/- 7.4; 7.4 -124.0 +/- 798.0; 798.3 D-04 Collins Road 2nd Qtr.CDAP-5171 3,718-2.2+/- 4.3; 4.4 6.4 +/- 26.9; 26.9 -4.0++/- 5.3; 5.4 1.7 +/- 1.2; 1.2 7.4 +/- 9.3; 9.4 -14.0+/- 8.1; 8.5 1.9 +/- 33.3; 33.3 -2.5 +/- 5.2; 5.2 6.5+/- 12.8; 12.9 3rd Qtr.CDAP-8263 3,702 1.3-+/- 5.6; 5.6 -4.9-+/- 5.1; 5.1 0.3 +/- 6.7; 6.7 2.1 +/- 27.8; 27.8 -4.0_+/- 12.4; 12.4 -6.2-+/- 10.7; 10.8 1.3 +/- 47.4; 47.4 3.2 +/- 5.4; 5.4 12.2_+/- 26.5; 26.6 4th Qtr.CDAP-10186 3,956 -2.3+/- 3.5; 3.5 -0.9-+/- 6.6; 6.6 0.4 +/- 2.9; 2.9 0.2 +/- 3.4; 3.4 -8.9_+/- 8.5; 8.7 -4.4_+/- 6.5; 6.6 0.6-+/- 4.3; 4.3 0.4+/- 3.0; 3.0 17.3-+/- 5.7; 6.5 Mfi -16 1999 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 1999 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 DRESDEN 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/m 3 Units: 10-4 pCi/m3 Sample Description and Concentration D-07 Clay Products lst Qtr.CDAP-2596 3,715 0.8"+/- 6.7; 6.7 38.6_+/- 99.7; 99.9 1.5 +/- 8.3; 8.3 3.0 +/- 47.3; 47.3 3.2.+/- 14.0; 14.0 -4.9.+/- 13.5; 13.5 -2.5 +/- 7.3; 7.3 1.3 +/- 5.6; 5.6 25.4 +/- 37.7; 38.0 1st Qtr.CDAP-2597 3,684 0.9"+/- 3.1; 3.1 5.5"+/- 61.5; 61.5 2.7"+/- 4.4; 4.4 2.0"+/- 2.8; 2.8 -8.5+/- 8.0; 8.1 -2.1 +/- 7.5; 7.5 0.6 +/- 0.2; 0.2 1.0.+/- 3.4; 3.4 6.1.+/- 18.4; 18.4 2nd Qtr.CDAP-5172 3,190 4.1 +/- 5.0; 5.1 -2.6 +/- 2.1; 2.1 -7.0 +/- 6.7; 6.8 -6.1 +/- 15.8; 15.8 2.3"+/- 10.7; 10.7 -1.8 +/- 8.8; 8.8 4.8"+/- 9.4; 9.4 2.3"+/- 4.6; 4.7 15.2"+/- 16.4; 16.6 D-12 (C) Lisbon 2nd Qtr.CDAP-5173 3,659 -1.5 +/- 5.1; 5.1 -4.9 +/- 7.9; 7.9 2.3 +/- 5.2; 5.2 6.2 +/- 2.7; 3.0 -12.0+/- 13.6; 13.8 9.4 +/- 8.5; 8.6 -4.3"+/- 15.9; 15.9 4.7 +/- 5.6; 5.7 32.7 +/- 39.2; 39.6 3rd Qtr.CDAP-8264 3,719 0.4_+/- 3.8; 3.8 2.9 +/- 3.3; 3.4 0.3 +/- 4.5; 4.5 3.0+/- 32.8; 32.8 -2.5+/- 10.9; 10.9 -3.9.+/- 10.2; 10.2 -0.5 +/- 1.6; 1.6 -3.4 +/- 4.5; 4.6 -22.9"+/- 25.2; 25.5 3rd Qtr.CDAP-8265 3,718 -0.2 +/- 5.0; 5.0 -2.0 +/- 1.9; 1.9 -1.9"+/- 6.7; 6.7 2.3"+/- 9.4; 9.4 -9.4 +/- 8.9; 9.0 0.5 +/- 9.5; 9.5 -2.6 +/- 7.2; 7.2 0.4+/- 5.0; 5.0 -79.1+/- 63.3; 64.8 4th Qtr.CDAP-10187 3,953 1.0+/- 3.4; 3.4 0.9_+/- 5.6; 5.6 1.2 +/- 2.9; 3.0 0.9.+/- 4.2; 4.2 -1.7+/- 7.1; 7.1 -5.0 +/- 3.5; 3.6 2.9 +/- 3.0; 3.0 -2.5 +/- 3.3; 3.4 -24.7 +/- 4.8; 6.5 4th Qtr.CDAP- 10188 3,952 0.5_+/- 4.6; 4.6 -1.8+/- 8.5; 8.5 -0.4 +/- 4.0; 4.0 6.3 +/- 5.7; 5.9 1.1 +/- 12.0; 12.0 3.5 +/- 4.9; 4.9 0.7 +/- 4.7; 4.7 -1.4_+/- 4.9; 4.9 3.0 +/- 5.9; 5.9 if1 -17 1999 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 1999 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 I DRESDEN 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: 104 pCi/m 3 Sample Description and Concentration D-45 McKinley Woods Road 1st Qtr.CDAP-2598 3,689 0.8 +/- 3.8; 3.8 7.5_+/- 134.0; 134.0 -3.9 +/- 5.9; 5.9 4.2_+/- 16.9; 16.9 -1.0_+/- 9.6; 9.6 -0.4 +/- 8.2; 8.2 -0.5 +/- 0.8; 0.9 1.8-+/- 4.2; 4.2 -24.6_+/- 169.0; 169.1 2nd Qtr.CDAP-5174 3,709 3.0 +/- 4.0; 4.0 -25.3 +/- 106.0; 106.1 6.1 +/- 5.4; 5.5 -7.9 +/- 6.5; 6.7 -9.4 +/- 13.3; 13.4 8.4+/- 7.1; 7.2 1.3 +/- 2.6; 2.6 -0.9 +/- 5.6; 5.6 -20.4 +/- 40.8; 41.0 3rd Qtr.CDAP-8266 3,733 -4.9 +/- 4.9; 5.0 -5.8-+/- 10.7; 10.7 -6.9 +/- 7.3; 7.4 -7.2_+/- 17.6; 17.6 -8.5+/- 12.1; 12.2 2.3++/- 9.4; 9.4 0.8 +/- 0.9; 0.9 1.8 +/- 5.5; 5.5 47.3 +/- 253.0; 253.1 4th Qtr.CDAP-10189 3,954 1.1 +/- 4.5; 4.5 1.9 +/- 8.8; 8.8 2.1 +/- 4.4; 4.4 16.2_+/- 5.7; 6.4 -8.9_+/- 11.6; 11.7 -3.6 +/- 9.7; 9.7 -2.4 +/- 4.6; 4.6 -0.6_+/- 4.9; 4.9 -11.0-+/- 6.7; 7.0 1st Qtr.CDAP-2599 3,699 1.4 +/- 4.7; 4.7 6.6_+/- 41.7; 41.7 -2.9 +/- 5.6; 5.6 5.1 +/- 20.4; 20.4 -0.5 +/- 9.8; 9.8 -4.3 +/- 8.4; 8.4 1.1 +/- 2.4; 2.4 4.2 +/- 3.9; 4.0 -31.9+/- 118.0; 118.1 D-53 Grundy County Road 2nd Qtr. 3rd Qtr.CDAP-5175 3,715 5.0_+/- 3.9; 4.0 -6.2+/- 55.0; 55.0 9.2 +/- 4.4; 4.7 -1.9 +/- 2.0; 2.0 -8.4-+/- 11.9; 12.0 2.5-+/- 8.5; 8.5 -0.5 +/- 0.4; 0.4 2.2-+/- 4.2; 4.3 -5.4 +/- 56.2; 56.2 CDAP-8267 3,724 3.9 +/- 4.7; 4.7 -2.9+/-t 13.5; 13.5 -1.6-+/- 5.5; 5.5 0.1_+/- 0.1; 0.1 -4.9_+/- 11.5; 11.5 -4.3_+/- 9.8; 9.8 5.2-+/- 30.3; 30.3 -3.5_+/- 4.6; 4.6 35.0-+/- 234.0; 234.1 4th Qtr.CDAP-10190 3,943 3.4 +/- 6.0; 6.0 -11.6_+/- 11.3; 11.5 6.4 +/- 6.3; 6.4 -3.6-+/- 7.6; 7.6 -6.8_+/- 15.0; 15.1 -17.0+/- 6.8; 7.5 -1.3-+/- 6.1; 6.2 -0.8 +/- 4.6; 4.6 48.3_+/- 7.0; 11.1 111 -18 1999 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 1999 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 Table 3. Milk Collection:

ODCM Required LLDs: Other LLDs: Units: DRESDEN 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 D-25 (C) Vince Biros Farm Date Collected Lab Code 01-01-99 CDMI-3 02-05-99 CDMI-686 03-05-99 CDMI-1362 04-02-99 CDMI-1947 0.18 +/- 0.24; 0.24 2.1+/- 3.1; 3.1 -7.8 +/- 10.4; 10.5 -4.4 +/- 3.3; 3.4 -5.7+/- 4.6; 4.7 0.9 +/- 9.5; 9.5 -0.9 +/- 3.5; 3.5 0.8+/- 1.1; 1.1 2.4 +/- 3.3; 3.3 0.9-+/- 4.1; 4.1 05-01-99 CDMI-2893 0.08 +/-0.19;0.19 1.0+/- 2.1; 2.1 -0.9 +/- 4.3; 4.3 -0.9 +/- 2.4; 2.4 -0.5 +/- 1.5; 1.5 -2.7+/- 6.2; 6.2 -0.1 +/- 2.4; 2.4 -0.6 +/- 0.6; 0.6 1.4 +/- 2.3; 2.3 -3.3 +/- 6.8; 6.8-0.26 +/- 0.32; 0.32 1.1+/- 2.0; 2.0 -0.3+/- 1.6; 1.6 0.6+/- 1.8; 1.8 2.1 +/- 5.8; 5.8 -3.4 +/- 4.3; 4.3 -0.7+/- 2. 1; 2.1 0.2+/- 0.8; 0.8 1.2 +/- 1.9; 1.9 -2.0-+/- 4.1; 4.1 05-15-99 CDMI-3327 0.11 .0.18;0.18 1.2 +/- 3.5; 3.5 -2.4 +/- 2.7; 2.7 1.8+/- 3.7; 3.7 1.5+/- 4.8; 4.8 -0.9+/- 9.7; 9.7 -0.9+/- 4.0; 4.0 -1.5t 2.2; 2.2 -1.3 +/- 3.7; 3.7 2.2 +/- 2.9; 2.9 0.05 +/-0.13; 0.13 -0.1+/- 2.1; 2.1 2.2+/- 13.8; 13.8 -0.9- 2.0; 2.0 0.0+/- 0.0; 0.0 -1.6+/- 5.4; 5.4 -1.0+/- 2.2; 2.2 0.5 +/- 0.9; 0.9 -0.8 t 2.3; 2.3 -0.7 +/- 7.7; 7.7 05-21-99 CDMI-34311

-0.10 +/- 0.17; 0.17 2.9+/- 3.4; 3.4 4.0 +/- 4.6; 4.6 -0.1 +/- 3.5; 3.5 1.4+/- 2.4; 2.4 -0.4+/- 9.4; 9.4 -3.2+/- 5.5; 5.6 -0.9+/- 4.0; 4.0 0.3 +/- 4.3; 4.3 0.1 +/- 0.4; 0.4-0.01 +/-0.19;0.19 0.1 +/- 2.1; 2.1 -3.9 +/- 20.5; 20.5 0.8+/- 2.3; 2.3 2.2+/- 2.8; 2.8 2.9 +/- 6.3; 6.3 -1.2 +/- 2.4; 2.4 0.6-+/- 0.7; 0.7 0.8+/- 2.6; 2.6 2.1 +/- 15.5; 15.5 06-04-99 CDMI-3868-0.04 +/- 0.17; 0.17 0.6_+/- 2.2; 2.2 4.7 +/- 7.5; 7.5 0.7 +/- 2.3; 2.3 -0.2 +/- 0.8; 0.8 -4.2 +/- 6.5; 6.5 -0.3-+/- 2.2; 2.2 1.8_+/- 3.8; 3.8 1.3+/- 2.8; 2.8 -1.1 +/- 3.5; 3.5 M -19 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 I Table 3. Milk Collection:

ODCM Required LLDs: Other LLDs: Units: DRESDEN 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 D-25 (C) Vince Biros Farm Date Collected Lab Code 06-18-99 CDMI-4272 07-02-99 CDMI-4635 07-16-99 CDMI-5241 07-31-99 NSb-0.06 +/- 0.25; 0.25 -0.3 +/- 2.1; 2.1 2.0 +/- 2.9; 2.9 0.1-+/- 1.9; 1.9 1.1-+/- 12.1; 12.1 -3.9 +/- 4.7; 4.7 1.3_+/- 2.1; 2.1 -0.1 +/- 0.2; 0.2 -0.4 +/- 2.0; 2.0 -0.8-+/- 5.0; 5.0 08-13-99 CDMI-5966 0.18 _0.21;0.21 1.4 -+/- 2.8; 2.8 -1.6-+/- 1.8; 1.8 0.7+/-t 2.4; 2.4 0.1 +/-t 0.4; 0.4 -0.1 t 6.0; 6.0 0.1 -2.7; 2.7 -0.7+/-t 1.1; 1.1 1.0+/-t 2.8; 2.8 -1.5+/-t 10.9; 10.9 08-27-99 CDMI-6246-0.08 +/- 0.25; 0.25 -0.2 +/- 1.9; 1.9 -0.4+/- 2.1; 2.1 -1.3 +/- 2.0; 2.0 -1.0+/- 5.0; 5.0 1.1 +/- 4.7; 4.7 -0.7_+/- 3.0; 3.0 2.0_+/- 7.5; 7.5 -0.1 +/- 2.2; 2.2 -1.9 +/- 2.6; 2.7 09-10-99 CDMI-6648 0.02 +/- 0.25; 0.25 -0.4 +/- 1.7; 1.7 -1.6 +/- 9.2; 9.2 0.9 +/- 1.8; 1.8 -1.2 +/- 1.9; 1.9 -6.0 +/- 4.8; 4.9 0.3 +/- 2.1; 2.1 0.4 +/- 0.3; 0.3 0.4 +/- 1.9; 1.9 -0.9+/- 1.1; 1.1 0.04 -t0.19;0.19

-0.8-+/- 1.8; 1.8 2.3+/-t 2.0; 2.0 -1.9+/-t 1.8; 1.8 -0.3+/-t 2.0; 2.0 0.2+/-t 5.1; 5.1 0.1 +/-t 1.9; 1.9 0.3+/-t 0.2; 0.2 0.3+/-t 2.1; 2.1 -0.4+/-t 1.2; 1.2 0.01 +/- 0.21 ; 0.21 -0.8 +/- 3.3; 3.3 -1.2 +/- 4.6; 4.6 2.2 +/- 3.8; 3.9 0.3 +/- 0.5; 0.5 -3.6 +/- 9.7; 9.7 -1.9+/- 3.1; 3.1 0.4 +/- 1.0; 1.0 1.2 +/- 3.4; 3.4 -1.7-+/- 3.7; 3.7 0.02 +/- 0.20; 0.20 -1.0+/- 3.6; 3.6 -4.5 +/- 7.2; 7.2 0.4 +/- 3.5; 3.5 1.7 +/- 2.8; 2.8 0.6 +/- 8.9; 8.9 0.2-+/- 3.0; 3.0 1.1 +/- 2.2; 2.2 -0.7 +/- 3.7; 3.7 3.3 +/- 3.5; 3.5 IMI -20 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 09-24-99 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 CDMI-7009 Table 3 Milk Collection:

ODCM Required LLDs: Other LLDs: Units: DRESDEN 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 D-25 (C) Vince Biros Farm Date Collected Lab Code 10-08-99 CDMI-7585 10-22-99 CDMI-8287 11-05-99 CDMI-8691 12-03-99 CDMI-9281-0.20 +/- 0.26; 0.26 1.2+/- 2.1; 2.1 6.1 +/- 9.8; 9.9 -1.5 +/- 2.0; 2.0 1.2 +/- 10.2; 10.2 -2.2+/- 4.1; 4.1 0.8 +/- 2.3; 2.3 0.1+/- 0.1; 0.1 0.1 +/- 2.3; 2.3 0.3 +/- 3.5; 3.5-0.02 +/-0.19;0.19

-0.1 +/- 1.9; 1.9 -3.0+/- 5.4; 5.4 0.6 +/- 2.0; 2.0 -0.3 +/- 2.6; 2.6 -3.6 +/- 4.9; 5.0 -0.7 +/- 2.2; 2.2 1.5 +/- 0.7; 0.7 1.0 +/- 2.2; 2.2 0.4 +/- 0.7; 0.7 0.04 +/- 0.18; 0.18 1.4 +/- 2.0; 2.0 1.9+/- 8.0; 8.0 0.8 +/- 1.9; 1.9 -0.9+/- 1.6; 1.6 -2.8 +/- 5.3; 5.3 -3.5 +/- 9.9; 9.9 -0.5 +/- 2.2; 2.2 -0.2+/- 2.1; 2.1 2.8+/- 6.1; 6.1-0.32 +/- 0.38; 0.39 0.8 +/- 2.5; 2.5 -1.3+/- 3.1; 3.1 -0.8 +/- 2.2; 2.2 -0.0+/- 2.3; 2.3 -5.1 +/- 6.6; 6.6 0.6+/- 3.0; 3.0 3.3 +/- 3.2; 3.2 -0.5+/- 2.3; 2.3 0.6+/- 0.8; 0.8 111 -21 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 Location shared with Braidwood Station; extra week of milk collection due to scheduling conflict in May 1999; conflict resolved in June 1999. b NS = No sample. See Section 2.0, page III-5 -Listing -of Missed Samples.

Table 4. Fish, Edible Portions Collection:

Semiannually ODCM-Required LLDs: Other LLDs: Units: DRESDEN 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 D-28 Dresden Pool of Illinois River Date Collected Lab Code 05-11-99 CDF-3288 05-11-99 CDF-3289 05-11-99 CDF-3290 05-11-99 CDF-3291 Carp-0.5 +/- 1.0; 1.0 -0.3 +/- 0.8; 0.8 0.1 +/- 1.2; 1.2 -0.0+/- 0.1; 0.1 1.3 +/- 3.1; 3.1 -0.3+/- 2.1; 2.1 -0.4 +/- 45.4; 45.4 0.0+/- 1.1; 1.1 0.6 +/- 4.3; 4.3 10-20-99 CDF-8170 Largemouth Bass -0.3 +/- 0.5; 0.5 -0.7+/- 1.5; 1.5 0.1 +/- 0.6; 0.6 -0.0 +/- 0.2; 0.2 -0.7 +/- 1.3; 1.3 0.4 +/- 0.7; 0.7 0.0 +/- 0.0; 0.0 0.4 +/- 0.5; 0.5 -0.5 +/- 16.7; 16.7 Largemouth Bass 0.0 +/- 0.7; 0.7 -0.8 +/- 1.6; 1.6 -0.2 +/- 0.9; 0.9 0.2 +/- 1.3; 1.3 1.6 +/- 1.9; 1.9 -0.4+/- 0.8; 0.8 -0.1 +/- 0.5; 0.5 0.3+/- 0.8; 0.8 -1.5+/- 5.8; 5.8 10-20-99 CDF-8171,2 Gizzard Shad -0.1 +/- 1.1; 1.1 1.4+/- 10.8; 10.8 0.4+/- 1.1; 1.1 -0.8+/- 1.1; 1.1 -0.2+/- 2.3; 2.3 -0.9 +/- 1.5; 1.5 0.6 +/- 0.8; 0.8 0.2 +/- 0.9; 0.9 3.0 +/- 5.3; 5.3 Gizzard Shad -0.2 +/- 1.2; 1.2 -0.2+/- 1.1; 1.1 -0.8 +/- 1.4; 1.4 1.0+/- 1.1; 1.1 -0.2 +/- 3.2; 3.2 0.4 +/- 1.4; 1.4 0.5 +/- 4.8; 4.8 -1.0+/- 1.3; 1.3 -1.6+/- 8.2; 8.2 10-20-99 CDF-8173 Carp 0.2+/- 0.8; 0.8 1.1 +/- 6.0; 6.0 0.5+/- 0.9; 0.9 0.9 +/- 1.6; 1.6 -0.9+/- 2.0; 2.0 0.5 +/- 1.3; 1.3 -1.2+/- 1.9; 1.9 0.7+/- 0.8; 0.8 -1.3+/- 5.5; 5.5 Smallmouth Buffalo 0.1 +/- 0.9; 0.9 -1.5 +/- 2.0; 2.0 0.1 +/- 0.9; 0.9 -0.4 +/- 4.3; 4.3 -0.5 +/- 2.1; 2.1 1.0 +/- 1.2; 1.2 0.4 +/- 0.8; 0.8 0.1 +/- 0.9; 0.9 -1.4+/- 3.5; 3.5 10-20-99 CDF-8174 Freshwater Drum 0.3+/- 1.1; 1.1 0.6 +/- 4.5; 4.5 0.1 +/- 0.9; 0.9 0.3 +/- 0.7; 0.7 1.3 +/- 2.2; 2.2 0.7+/- 1.5; 1.5 -0.1 +/- 0.1; 0.1 0.2 +/- 0.9; 0.9 2.6+/- 13.1; 13.1 111-22 Type Mffi-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: DRESDEN 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 D-46 (C) Des Plaines River. Upstream Date Collected Lab Code 05-12-99 CDF-3283,4 05-12-99 CDF-3285 05-12-99 CDF-3286 05-12-99 CDF-3287 Channel Catfish 0.2 + 0.6; 0.6 0.6 +/- 4.1; 4.1 -0.0 +/- 0.7; 0.7 0.6 +/- 1.0; 1.0 -0.4 +/- 1.5; 1.5 -0.5 +/- 0.8; 0.8 -0.1 +/- 0.4; 0.4 0.1 +/- 0.5; 0.5 0.9+/- 1.1; 1.1 10-20-99 CDF-8166 Carp 0.1 +/- 0.9; 0.9 -0.7 +/- 0.5; 0.5 0.3 +/- 1.0; 1.0 0.7 +/- 2.1; 2.1 -4.0 +/- 2.6; 2.6 0.9 +/- 1.2; 1.2 -0.2:+/- 0.1; 0.1 0.2+/- 0.9; 0.9 0.5 +/- 7.8; 7.8 Carp-0.3+/- 1.1; 1.1 -3.5:+/- 7.3; 7.3 -0.3+/- 1.1; 1.1 0.6+/- 0.5; 0.5 -0.7+/- 3.1; 3.1 -1.3 +/- 1.9; 1.9 0.2 +/- 0.7; 0.7 0.8+/- 1.1; 1.1 1.0 +/- 35.0; 35.0 10-20-99 CDF-8167 Gizzard Shad -0.1 +/- 0.9; 0.9 0.0+/- 0.1; 0.1 -0.1 +/- 1.4; 1.4 0.4 +/- 7.9; 7.9 -2.4 +/- 3.1; 3.1 -0.2 +/- 1.6; 1.6 -0.5 +/- 0.2; 0.3 -0.5 +/- 1.2; 1.2 -3.5 +/- 42.7; 42.7 Largemouth Bass -0.6 +/- 0.8; 0.8 1.5 +/- 5.9; 5.9 0.6 +/- 0.9; 0.9 0.5 +/- 1.0; 1.0 -1.3 +/- 2.3; 2.3 0.2 +/- 0.3; 0.3 0.3+/- 1.0; 1.0 -0.1 +/- 0.8; 0.8 0.2 +/- 3.2; 3.2 10-20-99 CDF-8168 Freshwater Drum 0.4 +/- 0.6; 0.6 -1.3 +/- 5.9; 5.9 0.1 +/- 0.6; 0.6 -0.1 +/- 0.2; 0.2 -3.1 +/- 2.1; 2.1 -0.1 +/- 0.9; 0.9 0.3 +/- 0.2; 0.2 0.3 +/- 0.6; 0.6 -1.1 +/- 12.6; 12.6 Smallmouth Buffalo 0.0+/- 0.9; 0.9 0.8 +/- 2.8; 2.8 -1.0 +/- 0.8; 0.8 0.0 +/- 1.3; 1.3 -0.2 +/- 1.6; 1.6 0.3 +/- 1.0; 1.0 -0.2 +/- 0.7; 0.7 0.4 +/- 0.7; 0.7 -0.2 +/- 0.4; 0.4 10-20-99 CDF-8169 Largemouth Bass-0.1 +/- 0.8; 0.8 -1.4 +/- 10.5; 10.5 -0.5 +/- 0.9; 0.9 1.0+/- 5.2; 5.2 -2.4 +/- 2.1; 2.1 -0.8 +/- 2.2; 2.2 0.1 +/- 0.1; 0.1 0.0 +/- 0.7; 0.7 1.1 +/- 14.2; 14.2 I. --M1 -23 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 I I DRESDEN Table 5. Bottom Sediments 1 Collection:

Semiannually ODCM Required LLDs: Cs-134 = 0.15, Cs-137 = 0.18 pCi/g dry weight Other LLDs: Mn-54 = 0.10; Fe-59 = 0.60; Co-58, Co-60 = 0.10; Zn-65 = 0.60; Zr/Nb-95 = 0.20; Ba/La = 0.60 pCi/g dry weight Units: 10.2 pCi/g dry weight Sample Description and Concentration D-27 Dresden Lock & Dam 05-29-99 CDBS-3652

-1.4+/- 3.1; 3.1 0.7 +/- 3.3; 3.3 0.5 +/- 3.4; 3.4 2.7+/- 45.0; 45.0 -6.9 +/- 8.3; 8.3 -3.0 +/- 5.9; 5.9 2.7+/- 5.9; 6.0 9.2 +/- 5.3; 5.4 -30.9 +/- 25.3; 25.6 10-09-99 CDBS-7608 1.2+/- 1.1; 1.1 0.2 +/- 0.5; 0.5 -0.4 +/- 1.2; 1.2 1.4 +/- 1.3; 1.3 -3.8 +/- 2.9; 2.9 -1.3 +/- 1.9; 1.9 2.0 +/- 6.7; 6.7 4.3 +/- 2.0; 2.1 2.6 +/- 2.2; 2.2 111 -24 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: DRESDEN 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 D-Control Glasscock Farm Date Collected 09-11-99 09-11-99 CDVE-6649,50a Rutabagas-0.2 +/- 0.4; 0.4 -1.2+/- 9.1; 9.1 0.3 +/- 0.4; 0.4 0.4 +/- 0.8; 0.8 -0.6 +/- 1.2; 1.2 -0.2+/- 0.5; 0.5 0.3 +/- 3.4; 3.4 -0.1 +/- 0.5; 0.5 -0.5+/- 1.2; 1.2 D-Ouad 1 Chris Locknar 08-28-99 CDVE-6265 a Potatoes-0.1 +/- 0.8; 0.8 0.1 +/- 0.1; 0.1 -0.5 +/- 0.8; 0.8 -0.1 +/- 0.2; 0.2 -0.5 +/- 2.1; 2.1 -0.6+/- 0.8; 0.8 -0.2 +/- 1.3; 1.3 0.1 +/- 0.8; 0.8 -0.1 +/- 0.9; 0.9 CDVE-6651 Cabbage -0.06 +/- 0.13; 0.13 0.3+/- 1.1; 1.1 0.6 +/- 0.9; 0.9 -0.1 +/- 0.9; 0.9 0.0 +/- 0.0; 0.0 -0.5 +/- 2.6; 2.6 -0.3 +/- 1.0; 1.0 0.5 +/- 0.8; 0.8 -0.5:+/- 1.0; 1.0 -0.5 +/- 1.3; 1.3 08-28-99 CDVE-6266 a Cabbage 0.05 +/- 3.68; 3.68 0.5 +/- 0.8; 0.8 1.7 +/- 8.8; 8.8 -0.3 +/- 0.7; 0.7 -0.2 +/- 4.0; 4.0 -0.0 +/- 1.7; 1.7 0.1 +/- 0.6; 0.6 -0.1 +/- 0.4; 0.4 -0.0 +/- 0.7; 0.7 -0.2 +/- 0.2; 0.2' ODCM required; cabbage = broad leaf; potatoes, rutagabas

= root vegetation.

111-25 Lab Code Type 1-131 Mffn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 Date Collected Lab Code Type 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 I ___________

I I Table 6. Vegetation Collection:

ODCM Required LLDs: Other LLDs: Units: DRESDEN 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 D-Ouad 2 Robert Pagffiano Date Collected Lab Code 09-04-99 CDVE-64761 09-04-99 CDVE-6477 a Potatoes-0.2+/- 0.5; 0.5 0.3 +/- 0.4; 0.4 0.2+/- 0.6; 0.6 0.2+/- 6.1; 6.1 -0.4+/- 1.4; 1.4 -0.2+/- 0.6; 0.6 0.8 +/- 5.4; 5.4 0.2 L 0.5; 0.5 -0.3 +/- 3.2; 3.2 D-Ouad 3 Jim Bloom 09-04-99 Cabbage-0.25 t 0.98; 0.98 -0.1 +/- 0.6; 0.6 0.1 +/- 0.1; 0.1 -0.1 +/- 0.8; 0.8 -0.0:+/- 0.6; 0.6 -1.9 +/- 1.9; 1.9 -0.3 +/- 0.7; 0.7 0.1 +/- 0.1; 0.1 0.2 +/- 0.8; 0.8 -0.6 +/- 2.9; 2.9 09-04-99 CDVE-6478

" Beets 0.0 +/- 0.5; 0.5 -0.5 +/- 4.3; 4.3 -0.2+/- 0.5; 0.5 -0.3+/- 2.3; 2.3 0.0+/- 1.5; 1.5 0.2 +/- 0.6; 0.6 0.2 +/- 1.3; 1.3 0.3 +/- 0.5; 0.5 -0.1 +/- 0.3; 0.3 CDVE-6480 a Brussel Sprouts -0.44 +/- 1.65; 1.65 0.1 +/- 1.2; 1.2 3.1 +/- 7.5; 7.5 0.8 +/- 1.3; 1.3 -0.9 +/- 2.1; 2.1 -0.7_+/- 3.2; 3.2 -0.6 +/- 1.3; 1.3 -0.7 +/- 0.7; 0.7 0.1 +/- 1.2; 1.2 1.1 +/- 3.4; 3.4 IR -26 Type 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 Type 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 a ODCM required; cabbage, brussel sprouts = broad leaf; potatoes, beets = root vegetation.

Table 6. Vegetation Collection:

ODCM Required LLD, Other LLDs: Units: DRESDEN Annually s: 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 D-Ouad 4 I.D. Carmichael Date Collected 08-28-99 08-28-99 CDVE-6267 a Potatoes-0.4 +/- 0.6; 0.6 0.3+/- 0.5; 0.5 -0.0 +/- 0.6; 0.6 -0.1 +/- 0.3; 0.3 -1.2+/- 1.4; 1.4 -0.4 +/- 0.7; 0.7 -0.0 +/- 0.0; 0.0 0.4 +/- 0.5; 0.5 -0.1 +/- 0.6; 0.6 CDVE-6268 a Cabbage 0.02 +/- 0.20; 0.20 0.3 +/- 0.5; 0.5 0.4 +/- 0.4; 0.4 -0.3 +/- 0.5; 0.5 0.1 +/- 0.8; 0.8 -0.8+/-t 1.3; 1.3 0.2+/-t 0.5; 0.5 0.2 +/- 0.9; 0.9 0.0 +/- 0.6; 0.6 -0.5 +/- 1.7; 1.7 a ODCM required; cabbage = broad leaf, potatoes = root vegetation.

11 -27 Lab Code Type 1-131 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr/Nb-95 Cs-134 Cs-137 Ba/La-140 I I DRESDEN 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 D-51 Dresden Lock & Dam January 1999 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 1999 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 CDSW-1 160 6.3 +/- 2.0; 2.3 0.2+/- 1.8; 1.8 4.9 +/- 6.5; 6.5 -1.7+/- 1.9; 1.9 0.4+/- 0.7; 0.8 -1.8+/- 3.7; 3.7 -1.4+/- 2.1; 2.1 -0.9+/- 0.8; 0.8 0.8 +/- 2.4; 2.4 1.6+/- 3.4; 3.4 May CDSW-4141 CDSW-630 4.5 _ 1.6; 1.8 -0.1+/- 1.9; 1.9 2.1 +/- 2.9; 2.9 -1.1 +/- 1.9; 1.9 1.8+/- 2.0; 2.0 -1.4+/- 4.3; 4.3 -1.3+/- 2.2; 2.2 2.1 +/- 5.8; 5.8 0.1 +/- 2.2; 2.2 -1.9+/- 3.0; 3.0 April CDSW-2943 3.7 +/- 1.5; 1.6 1.4 +/- 1.9; 1.9 -4.0+/- 3.6; 3.6 -0.3+/- 2.2; 2.2 1.1+/- 1.4; 1.4 -0.5+/- 4.4; 4.4 1.0+/- 2.7; 2.7 0.9+/- 1.2; 1.2 0.6+/- 2.0; 2.0 -3.3+/- 6.0; 6.0 March CDSW-1959 5.5 +/- 1.8 ; 2.0 2.1 +/- 3.0; 3.0 -3.8 +/- 30.3; 30.3 -2.0 +/- 2.5; 2.5 -0.1 +/- 1.0; 1.0 -4.6 +/- 5.7; 5.7 0.1 +/- 0.0; 0.0 -2.9 +/- 20.4; 20.4 0.5-+/- 3.1; 3.1 0.5 +/- 3.9; 3.9 June CDSW-4717 3.4 +/- 1.5; 1.6 0.1 +/- 1.6; 1.6 2.4+/- 6.0; 6.0 0.7_+/- 1.8; 1.8 2.1+/- 27.1; 27.1 -2.6 +/- 3.9; 3.9 -2.0 +/- 3.5; 3.5 0.4 +/- 0.5; 0.5 1.0+/- 1.8; 1.8 -0.6+/- 10.9; 10.9 111-28 2.6 +/- 1.4; 1.4 -0.7 +/- 1.5; 1.5 0.3 +/- 0.3; 0.3 1.2 +/- 1.5; 1.5 0.8+/- 1.7; 1.7 -1.1 +/- 3.4; 3.4 0.8 +/- 2.3; 2.3 0.7 +/- 1.5; 1.5 1.4 +/- 1.5; 1.5 -2.5+/- 11.4; 11.4 DRESDEN 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 D-51 Dresden Lock & Dam July 1999 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 1999 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 CDSW-6473 5.2 +/- 1.6; 1.8 0.8 +/- 2.3; 2.3 3.8+/- 15.5; 15.5 -0.7+/- 2.6; 2.6 1.8+/- 2.8; 2.8 1.0+/- 5.0; 5.0 1.8+/- 2.8; 2.8 1.4 +/- 7.2; 7.2 1.5+/- 2.1; 2.1 2.6+/- 7.6; 7.6 November CDSW-9226 8.3 +/- 2.0; 2.4 1.1_+/-_2.1; 2.1 -4.0+/- 15.3; 15.3 -0.4+/- 2.1; 2.1 -0.7 +/- 5.8; 5.8 -6.6 +/- 6.3; 6.4 -0.8 +/- 2.4; 2.4 -0.6 +/- 0.5; 0.5 -2.3 +/- 2.3; 2.3 1.1 +/- 12.2; 12.2 September CDSW-7372 6.3 +/- 1.3; 1.7 3.2 +/- 2.5; 2.5 -1.3+/- 9.2; 9.2 0.9+/- 2.5; 2.5 0.3 +/- 0.5; 0.5 -1.3+/- 5.5; 5.5 1.7 +/- 3.3; 3.3 -0.7+/- 8.1; 8.1 0.7 +/- 2.5; 2.5 -3.7 +/- 4.2; 4.2 December CDSW-10212 9.1 +/-_2.6;2.9 0.4 +/- 0.7; 0.7 -1.1+/- 1.2; 1.2 -0.3+/- 0.6; 0.6 1.0+/- 0.6; 0.6 -0.9+/- 1.4; 1.4 0.1 +/- 0.7; 0.7 1.6+/- 0.8; 0.8 0.1 +/- 0.7; 0.7 -4.9+/- 0.8; 1.1 MII -29 CDSW-5728 3.4 +/- 1.5; 1.6 0.1 +/- 1.9; 1.9 1.0 +/- 0.8; 0.8

• 0.3 +/- 1.9; 1.9 0.6 +/- 1.5; 1.5 -3.9+/- 4.1; 4.1 -0.7 +/- 1.7; 1.7 -0.2 +/- 0.2; 0.2 1.1+/-2.1; 2.1 -0.7 +/- 4.0; 4.0 October CDSW-8681 4.5 +/-2.0;2.1 1.0 +/- 1.8; 1.8 2.4 +/- 8.5; 8.5 -1.6+/- 2.3; 2.3 1.3 +/- 2.4; 2.4 -0.9+/- 4.1; 4.1 -0.8+/- 2.8; 2.8 -2.9+/- 13.8; 13.8 -0.3+/- 2.1; 2.1 0.6+/- 5.2; 5.2 I I DRESDEN 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 D-52 (C) Des Plaines River January 1999 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 1999 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 CDSW-1 161 4.0 +/- 1.8; 1.9 1.5 +/- 3.1; 3.1 0.5-+/- 1.7; 1.7 1.8_+/- 2.9; 2.9 0.4 +/- 2.0; 2.0 -1.1 +/- 6.2; 6.2 2.7+/- 3.1; 3.1 -0.5 +/- 0.4; 0.4 0.3 +/- 3.5; 3.5 1.2-+/- 4.0; 4.0 May CDSW-631 5.5 +/- 1.8; 2.0 -0.5 +/- 1.5; 1.5 1.0 +/- 1.7; 1.7 -0.6 +/- 1.8; 1.8 0.6 +/- 0.8; 0.8 -3.8 +/- 3.4; 3.4 0.5 +/- 2.2; 2.2 1.1 +/- 0.6; 0.6 0.1+/- 1.9; 1.9 -2.9_+/- 13.2; 13.2 April CDSW-2944 6.6 +/- 1.9; 2.1 0.6-+/- 2.0; 2.0 0.7 +/- 5.9; 5.9 0.2 +/- 2.3; 2.3 1.3 +/- 4.4; 4.4 -1.6-+/- 4.2; 4.2 0.5_+/- 2.6; 2.6 -0.4 +/- 0.5; 0.5 0.6 +/- 2.0; 2.0 -2.4_+/- 5.7; 5.7 March CDSW-1960 5.6 +/- 1.8 ; 2.0 0.1 +/- 1.3; 1.3 0.4 +/- 0.4; 0.4 0.1_+/- 1.3; 1.3 0.6+/- 0.8; 0.8 -0.6 +/- 2.3; 2.3 0.9+/- 1.6; 1.6 -0.6+/- 1.1; 1.1 2.1_+/- 1.5; 1.5 0.9 +/- 4.4; 4.4 June CDSW-4718 5.9 +/- 1.8 ; 2.0 0.4 +/- 1.2; 1.2 -2.0+/- 8.9; 8.9 -0.7 +/- 1.4; 1.4 -0.7 +/- 5.2; 5.2 -0.2 +/- 2.7; 2.7 0.5 +/- 1.7; 1.7 0.1 +/- 0.2; 0.2 1.3 +/- 1.3; 1.4 -1.5 +/- 16.7; 16.7 M -30 CDSW-4142 5.8 +/- 1.8 ; 2.0 -0.6-+/- 2.0; 2.0 -0.5 +/- 0.5; 0.5 1.8 +/- 2.4; 2.4 -1.3+/- 1.1; 1.1 -5.9 +/- 4.3; 4.3 2.4 +/- 2.9; 2.9 2.2+/- 7.1; 7.1 0.5 +/- 2.0; 2.0 -0.5+/- 0.5; 0.5 DRESDEN Table 7. Surface Water Collection:

Monthly composites of weekly collections ODCM- Gross Beta = 4, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Required LLDs: Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140

= 15 pCiIL Units: pCi/L Sample Description and Concentration D-52 (C) Des Plaines River July 1999 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 1999 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 CDSW-6474 5.8 +/- 1.8; 2.0 0.3 +/- 2.5; 2.5 -3.0 +/- 4.2; 4.2 -1.4_+/- 2.3; 2.3 1.4+/- 3.0; 3.0 1.3 +/- 5.9; 5.9 -1.4 +/- 3.6; 3.6 -1.0+/- 1.3; 1.3 -1.5 +/- 2.5; 2.5 1.6_+/- 32.2; 32.2 November CDSW-9227,8 9.2 +/- 1.4; 1.7 -0.7 +/- 1.3; 1.3 0.9_+/- 1.2; 1.3 0.0+/- 1.4; 1.4 -0.6 +/- 6.2; 6.2 -0.1 +/- 2.7; 2.7 -0.6 +/- 1.5; 1.5 0.5 +/- 0.7; 0.7 -0.2+/- 1.4; 1.4 1.0+/- 2.3; 2.3 September CDSW-7373 6.6 +/- 1.3; 1.6 1.3+/- 3.1; 3.1 -1.8+/- 3.6; 3.6 -0.9 +/- 3.5; 3.5 -1.4-+/- 9.8; 9.8 -3.6 +/- 7.0; 7.0 0.2 +/- 4.2; 4.2 -1.7-+/- 2.4; 2.5 1.9+/- 3.1; 3.1 -3.1 +/- 5.7; 5.7 December CDSW-9960 9.4 +/-2.0;2.5 -0.1 +/- 2.6; 2.6 -0.8 +/- 4.2; 4.2 3.0+/- 2.0; 2.1 -1.5+/- 3.1; 3.1 -5.8+/- 6.7; 6.7 -4.6+/- 2.8; 2.9 2.0+/- 2.8; 2.8 -2.3 +/- 3.0; 3.0 -1.5-+/- 3.1; 3.1 111-31 CDSW-5729 5.1 +/- 1.6; 1.8 0.3_+/- 1.7; 1.7 0.2 +/- 0.6; 0.6 -0.3 +/- 1.9; 1.9 -1.2"+/- 3.2; 3.2 -0.5 +/- 3.3; 3.3 -1.2 +/- 2.0; 2.0 -0.5 +/- 9.3; 9.3 0.4 +/- 1.8; 1.8 2.5 +/- 20.0; 20.0 October CDSW-8682 7.2 +/- 2.2 ; 2.4 -1.4"+/- 2.6; 2.6 -1.0++/- 2.9; 2.9 -0.4 +/- 3.4; 3.4 0.6 +/- 1.4; 1.4 -6.6 +/- 6.6; 6.7 0.6+/- 3.5; 3.5 0.1+/- 1.1; 1.1 1.1 +/- 3.0; 3.0 -7.7+/- 8.5; 8.6 I I DRESDEN Table 7. Surface Water Collection:

ODCM Required LLD: H-3 = 200 pCi/L Units: pCi/L 1999 Sample Description and Concentration Collection Period Lab Code Tritium D-51 Dresden Lock & Dam 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter CDSW- 2303 CDSW- 4509 CDSW- 7026 CDSW- 9907 331+/- 98; 107 313 +/- 99; 108 282 +/- 107; 113 602 +/- 101; 130 D-52 (C) Des Plaines River 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter CDSW- 2304 CDSW- 4510 CDSW- 7027 CDSW- 9908 III -32 26 +/- 86; 86 107_+/- 91; 92 39 +/- 96; 96 24+/- 87;87 DRESDEN Table 8. Well Water Collection:

ODCM Required LLDs: Units: Quarterly H-3 = 200, Mn-54 = 15, Fe-59 = 30, Co-58 = 15, Co-60 = 15, Zn-65 = 30, Zr/Nb-95 = 15, Cs-134 = 15, Cs-137 = 18, Ba/La-140

= 15 pCi/L pCi/L Sample Description and Concentration D-23 Thorsen Well 01-09-99 CDWW-97 388 +/- 97; 110 -2.4+/- 1.6; 1.7 1.3 +/- 1.8; 1.8 0.1 +/- 1.5; 1.5 0.9+/- 12.9; 12.9 -4.8 +/- 3.7; 3.7 -0.3 +/- 1.9; 1.9 0.5+/- 0.1; 0.1 -0.1 +/- 1.5; 1.5 0.9+/- 5.8; 5.8 04-03-99 CDWW-2009 411 +/- 94; 109 1.1 +/- 2.6; 2.6 -1.6+/- 4.0; 4.0 -2.2+/- 2.8; 2.8 1.7+/- 2.2; 2.2 -5.7+/- 5.7; 5.7 -0.6+/- 3.1; 3.1 -0.9 +/- 1.6; 1.6 2.2+/- 2.4; 2.4 -4.7 +/- 6.4; 6.4 07-03-99 CDWW-4774 395-+/- 100; 113 -0.7-+/- 2.2; 2.2 0.9+/- 1.0; 1.0 2.9 +/- 2.9; 2.9 1.6 +/- 35.5; 35.5 -1.4+/- 4.7; 4.7 -0.7 +/- 3.9; 3.9 -1.1 +/- 3.4; 3.4 0.1 +/- 2.4; 2.4 1.6 +/- 3.9; 3.9 10-02-99 CDWW-7257 375+/- 105; 117 1.2 +/- 1.9; 1.9 3.9 +/- 6.2; 6.2 -0.1 +/- 2.2; 2.2 -0.5+/- 0.7; 0.7 -6.3-+/- 4.2; 4.3 -0.8 +/- 2.7; 2.7 0.1 +/- 0.0; 0.0 0.5_+/- 2.1; 2.1 0.1 +/- 1.0; 1.0 D-35 Dresden Lock & Dam 01-09-99 CDWW-98-31 +/- 80; 80 -0.1 +/- 2.1; 2.1 -0.4 +/- 0.8; 0.8 1.9 +/- 1.9; 1.9 1.3 +/- 5.8; 5.8 -1.3 +/- 3.7; 3.7 -0.9 +/- 2.0; 2.0 1.2+/- 0.7; 0.7 0.1 +/- 1.9; 1.9 -1.2+/- 42.8; 42.8 04-03-99 CDWW-2011 84 +/- 85; 86 -3.0+/- 2.2; 2.3 1.5 +/- 3.0; 3.0 0.1 +/- 2.3; 2.3 -1.1 +/- 1.4; 1.4 -0.7 +/- 5.0; 5.0 -2.1 +/- 2.9; 3.0 -0.4 +/- 0.4; 0.4 1.0+/- 2.1; 2.1 -1.7-+/- 5.0; 5.0 07-03-99 CDWW-4776 18 +/- 85; 85 0.4 +/- 1.6; 1.6 0.6+/- 7.2; 7.2 -0.4 +/- 2.2; 2.2 0.2+/- 0.2; 0.2 0.4 +/- 3.9; 3.9 -0.2 +/- 3.0; 3.0 0.9+/- 1.4; 1.4 0.9 +/- 1.9; 1.9 1.4_+/- 6.8; 6.8 10-02-99 CDWW-7258-48 +/- 89; 89 0.2 +/- 2.5; 2.5 -0.9-+/- 3.3; 3.3 1.0+/- 3.0; 3.0 -1.6_+/- 12.7; 12.7 -6.2 +/- 5.5; 5.6 -0.1 +/- 3.5; 3.5 -0.9+/- 1.7; 1.7 0.9 +/- 2.7; 2.7 -5.5+/- 82.7; 82.7 iM -33 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 I ,

DRESDEN MILCH ANIMALS, NEAREST LIVESTOCK AND NEAREST RESIDENCES CENSUS 111-34 DRESDEN MILCH ANIMALS CENSUS, 1999 Sampling Locations Halpin's Dairy Farm 16.0 miles, Sector J 10% or less for pasture 25% ground grain 65% green chop, hay or silage D-25 V. Biros Dairy Farm 11.4 miles, Sector L 25% pasture 25% ground grain 50% green chop Sherman Tweet Farm 8.5 miles, Sector Q 25% pasture 25% ground grain 50% hay or silage Census conducted by A.D. Lewis on August31,1999 HIT- 35 DRESDEN NEAREST LIVESTOCK CENSUS, 1999 Nearest livestock of the Dresden 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.D. Lewis on August 31,1999 Distance 1.4 miles 6.0 miles 2.5 miles 4.7 miles None None None None None None None None 0.5 miles 0.5 miles 0.5 miles 1.0 miles 111-36 DRESDEN NEAREST RESIDENCE CENSUS, 1999 Nearest resident of the DresdenStation within a 6.2 mile radius. Sector Direction Distance A N 1.2 miles B NNE 0.8 miles C NE 2.3 miles D ENE 0.8 miles E E 1.1 miles F ESE 1.0 miles G SE 0.6 miles H SSE 0.5 miles J S 0.5 miles K SSW 3.3 miles L SW 3.7 miles M WSW 5.8 miles N W 3.5 miles P WNW 3.7 miles Q NW 2.6 miles R NNW 0.8 miles Census conducted by A.D. Lewis on August31, 1999 El -37 DRESDEN DREDGE SPOILS CENSUS DATA, 1999 Nearest dredging to station.

Sector Direction Distance Site No. A N 0.4 5 rn-38 DRESDEN 4.0 TLD DATA** TLD Data provided by Commonwealth Edison Company.IH-39 I I I-Commonwealth Edison Company 3ate: 27-JAN-00 Environmental Site Report V4 for Dresden Gamma Radiation Measured in mR by TLDs Site Description Quarter I Quarter 2 Quarter 3 Quarter 4 1999 1999 1999 1999 I. INDICATOR LOCATIONS

a. Air Samplers D-01-1 ONSITE STATION 1 16.4 17.9 16.8 17.8 D-01-2 ONSITE STATION 1 16.8 17.4 17.4 16.8 D-02-1 ONSITE STATION 2 15.1 17.3 16.9 15.5 D-02-2 OKSITE STATION 2 15.8 16.8 17.1 15.7 D-03-1 ONSITE STATION 3 14.9 16.3 14.3 15.0 D-03-2 ONSITE STATION 3 13.7 15.5 15.7 14.4 D-04-1 COLLINS ROAD 16.5 18.1 18.4 17.3 D-04-2 COLLINS ROAD 15.5 18.6 17.6 16.6 D-07-1 CLAY PRODUCTS 16.0 16.1 8 16.2 15.5 D-07-2 CLAY PRODUCTS 15.9 16.6 16.1 15.6 D-08-1 PRAIRIE PARKS 16.4 17.7 17.0 17.3 D-08-2 PRAIRIE PARKS 16.4 17.2 17.4 16.6 D-10-1 GOOSE LAJE VILLAGE 16.0 17.7 16.9 16.4 D-10-2 GOOSE LAKE VILLAGE 15.3 17.6 17.S 16.7 D-13-1 MINOOKA 14.3 16.5 14.7 14.9 D-13-2 MINOOKA 14.5 15.4 14.2 15.1 D-14-1 CHANNAHON 14.6 15.9 15.1 13.9 D-14-2 CHANNAHON 16.0 15.8 15.9 15.2 D-45-1 MCKINLEY WOODS ROAD 18.2 19.3 19.2 18.8 D-45-2 MCKINLEY WOODS ROAD 18.5 21.6 19.2 19.2 D-53-1 GUNDY COUNTY LINE ROAD 14.4 14.2 14.0 # 14.2 D-53-2 GRUNDY COUNTY LINE ROAD 12.9 15.3 13.9 # 13.5 Air Sampler Mean ; S.D. IS.6 +/- 1.3 17.0 + 1.6 16.4 + 1.6 16.0

• 1.5 Annual Air Sampler Mean + S.D. 16.3 # 1.6 b. Inner Ring 1100 Series) D-101-1 16.9 18.2 17.2 18.5 D-101-2 15.7 17.8 16.1 17.0 D-102-1 16.9 20.1 19.4 17.5 D-102-2 16.4 19.4 # 18.8 18.5 D-103-1 14.6 16.9 16.6 16.1 D-103-2 14.7 16.6 16.6 15.5 D-104-1 17.0 18.3 17.S 17.5 D-104-2 17.7 19.9 19.1 18.2 D-105-1 17.5 19.5 17.1 18.5 D-105-2 16.0 17.6 16.9 17.8 D-106-1 14.9 16.6 15.5 15.2 III-40 Environmental Site Report V4 for Dresden Date: 27-JAN-00 Site Description Quarter 1 1999 b. Inner Ring (100 Series) D-106-2 D-107-1 D-107-2 D-108-2 D-108-2 D-109-i V-109-2 D-110-3 D-110-4 D-111-1 D-111-2 D-122A-1 D-112A-2 D-113-1 D-113-2 D-114-1 D-114-2 D-115-1 D°11S-2 D-116-1 D-116-2 14.0 14.6 13.4 19.S 1S.S 17.6 16.3 19.6 20.8 18.5 18.s 15.2 14.6 14.5 15.1 15.1 15.2 15.8 17.0 16.6 17.5 Quarter 2 Quarter 3 Quarter 4 14.4 16.2 15.7 19.9 17.3 17.1 18.4 21.3 20.3 26.3 17.7 16.4 16.1 15.1 16.1 16.7 1S.8 17.1 18.9 18.2 19.9 14.2 13.7 14.5 17.6 16.4 18.6 16.7 20.8 20.6 20.4 18.9 16.1 16.5 17.6 16.4 14.6 15.7 16.8 17.2 17.7 20.1 14.4 14.6 14.8 19.6 16.1 17.9 18.4 21.4 21.6 20.S 18.8 16.4 16.4 14.7 1S.9 16.0 163. 16.8 18.5 18.4 19.1 Inner Ring Mean" S.D. Annual Inner Ring Mean S.D.16.4 + 1.7 18.0 +/- 2.3 17.2 -1.8 17.4 + 1.9 17.3 + 2.0 c. Outer Ring 9200 Series) D-201-1 D-201-2 D-202-1 V-202-2 D-203-1 D-203-2 D-204-1 D-204-2 D-205-1 D-205-2 D-206-1 D-206-2 D-207-1 D-201-2 D-208-1 0-209-2 D-209-1 D-209-2 D-210-1 D-210-2 D-211-1 D-211-2 D-212-3 111-41 18.1 19.1 15.8 17.4 13.6 16.0 17.5 14.9 16.5 17.1 15.7 15.7 14.7 14.4 14.3 14.0 13.3 12.8 1S.2 17.7 16.0 16.3 13.9 21.3 22.4 17.3 18.5 15.8 17.4 17.7 15.9 17.7 17.8 16.8 17.4 15.6 16.3 14.8 14.7 14.6 14.4 16.7 18.3 1B.S 18.S 15.4 20.5 20.8 17.1 18.3 13.7 17.2 18.1 15.0 17.6 18.6 16.3 17.4 16.6 15.9 14.3 14.0 14.3 13.5 15.9 17.4 18.0 18.1 14.9 20.9 21.3 16.6 19.1 # 14.3 17.4 18.3 16.3 17.8 17.6 19.2 17.1 16.1 15.5 15.0 13.6 14.3 13.2 1S.S 16.6 17.6 17.4 14.8 1999 1999 1999 I Environmental Site Report V4 for Dresden Quarter 1 Quarter 2 1999 1999 Quarter 3 Quarter 4 1999 1999 c. Outer Ring 1200 Series)13.9 13.3 14.1 19.7 19.2 18.2 18.1 19.0 18.4 15.5 16.7 17.7 22.7 21.2 21.4 19.1 21.2 21.6 14.6 14.3 16.1 22.1 20.2 20.1 18.8 19.9 19.6 14.4 13.6 14 .7 20.3 20.9 21.9 20.5 21.2 20.0 Outer Ring Mean + S.D.Annual Outer Ring Mean I S.D. INDICATOR LOCATION MEAN + S.D. Annual INDICATOR LOCATION MEAN + S.D.16.1 + 2.0 17.8 0 2.4 17.2 +/- 2.3 17.3 +/- 2.4 17.1 + 2.4 16.1 +/- 1.8 17.7 +/- 2.2 17.0 + 2.0 17.0 .2.2 16.9 +/- 2.1 II. CONTROL LOCATIONS D-12-1 D-12-2 LISBON LISBON CONTROL LOCATION Mean +/- S.D. Annual CONTROL LOCATION Mean + S.D.13.3 +/- 0.0 1S.5

• 1.1 14.1 + 0.4 15.0 + 0.5 24.5 t 1.0 III. SPECIAL INTEREST LOCATIONS 36.5 31.0 31.9 23.4 16.8 16.0 #46.7 43.S 35.1 39.6 21.8 19.7 41.0 35.9 34.4 38.4 21.1 17.0 25.6 23.5 24.0 37.7 21.2 18.7 SPECIAL INTEREST LOCATION Mean + S.D. Annual SPECIAL INTEREST LOCATION Mean + S.D.25.9 +/- 8.5 34.4 +/-,11.3 31.3 +/- 9.8 25.1 + 6.6 29.2 + 9.4 COMENTS.

• Indicates lost dosimeter.

A portion of the Dose was estimated.

1 Indicates edited dosimeter.

The original Dose was replaced with an estimated value. "n* tn-2..9) Indicates dose is average of n values. A -+a means more than 9 values.Il-42 Site Description D-212-4 D-213-1 D-213-2 D-214-1 D-214-2 D-215-1 D-21S-2 D-216-1 D-216-2 13.3 13.3 16.3 14.7 14.4 13.9 15.3 14.6 D-306-1 D-306-2 D-306-3 D-310-1 D-313-1 D-313-2 Date: 27-JAN-00 DRESDEN GRAPHS OF DATA TRENDS 1E[-43 Air Particulates

-Gross Beta D-01 Onsite Station 1 10.0 8.0 6.0 4.0 2.0 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 1. Continuous collection with weekly exchange of particulate filter.D-02 Onsite Station 2 10.0 8.0 6.0 4.0 2.0 0 .0 ; .. .... .... .. ..... 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 2. Continuous collection with weekly exchange of particulate filter.M-44 mV E CJ 0i 9 0 cr) 03 E OL 0. Lh C% 0T-Air Particulates

-Gross Beta D-03 Onsite Station 3 10.0 8.0 6.0 4.0 2.0 0.0.0 ..... ................

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

...........-.-.----..--..........-.-------..--.-......................

........-...-.

1.. ......-............................................

01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 3. Continuous collection with weekly exchange of particulate filter.D-04 Collins Road 10.0 8.0 6.0 4.0 2.0 00 .01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 3. Continuous collection with weekly exchange of particulate filter.HI-45 CL 0.U Cm 0 wb CO 0 LI 0 I Air Particulates

-Gross Beta D-07 Clay Products No sample; air 2-0 -.. .... .. ...... I .........

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

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

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

.........

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

....... .... ..........-

... 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 6. Continuous collection with weekly exchange of particulate filter.D-12 (C) Lisbon 10.0 8.0 6.0 4.0 2.0-0 .0 .... ............ 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 7. Continuous collection with weekly exchange of particulate filter.111-46 10 8 6 4+CO E cm 9 w 0o ce) E OcJ 0 0 Air Particulates

-Gross Beta D-45 McKinley Woods Road 10.01 6.0 4.0 2.0 0 .0 '- -.. ...-.-....

-.-..... .. .. ........ .... ...........

... .. .... ... ....... _....... .........--

-........

.... 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 8. Continuous collection with weekly exchange of particulate filter.D-53 Grundy County Road 10T 6 4 2 0 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 8. Continuous collection with weekly exchange of particulate filter. NOTE: Location installed 06-20-98.111-47 co 04 C, 0 wr E CL 0 0 I Surface Water-Gross Beta D-51 Dresden Lock & Dam 20.0 15.0 -J 10.0 5.0 0.0 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 Figure 9. Weekly collection.

D-52 DesPlaines River 20.0 15.0-j 0 10.0 5. 5.0 0.0 01-01-95 01-01-96 12-31-96 12-31-97 Figure 10. Weekly collection.

M-48 12-31-99 12-31-98 12-31-99 Surface Water-Tritium D-51 Dresden Lock & Dam 800 700 600 500 .400' 300 200 100 . 0: 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 Figure 11. Quarterly composite of weekly collection.

12-31-99 D-52 Des Plaines River U CL 600 500 400 300 200 100-100 -. 01-01-95 01-01-96 12-31-96 12-31-97 12-31-98 12-31-99 Figure 12. Quarterly composite of weekly collection.

M-49 I!O'ý,/I Well Water-Tritium D-23 Thorsen 600 500 400 -300/ 200 __\ 100-0-.... .... ".. .. ... ................

... .......T .. ..... ............. ..... ... .. 01-01-96 12-31-96 12-31-97 Figure 11. Quarterly collections.

D-35 Dresden Lock and Dam I/K 31-96 12-31-97 Figure 12. Quarterly collections.

111-50-j 0L-.'.--100 01-01-95 12-31-98 12-31-99 600._, 500 400 300 200 0.100 0o-100 0 01-01-95 01-01-96 12-31-98 12-31-99 APPENDIX IV INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Teledyne Brown Engineering

-Environmental Services, Midwest Laboratory participates in intercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported annually in Appendix VI. Mixed analyte and Environmental Measurements Laboratory (EML) performance evaluation program results are also reported.

January, 1999 through December, 1999 IV-1 I Appendix IV Interlaboratory Comparison Program Results Teledyne Brown Engineering Environmental Services, Midwest Laboratory (formerly Teledyne Isotopes and Hazelton Environmental Services) 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 know 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, 1999. This program was conducted by the Environmental Resource Associates and serves to replace studies formerly conducted by the U. S. Environmental Protection Agency. Table IV-2 list results of the mixed analyte performance evaluation program.

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

Out-of-limit results are explained directly below the result.IV-2 Table IV-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA), comparison of ERA and Teledyne Midwest Laboratory results?.

Concentration in pCi/Lb Lab Sample Date EPA Resulte Control TBEESML Results Code Type Collected Analysis Is, N=1 Limits +/- 2 Sigmad STW-861 Water Sep, 1999 Ra-226 16.5:+/- 1.7 12.2- 20.8 15.6 +/-0.3; 1.6 STW-861 Water Sep, 1999 Ra-228 2.2+/-0.2 1.2- 3.1 3.2+/-0.3;0.5 The activity reported is the average of three separate analyses.

Individual results: 2.6,2.9 and 4.0. STW-861 Water Sep, 1999 Uranium 45.4+/-4.5 37.7- 53.1 39.4+/- 1.2;4.1 STW-862 Water Nov, 1999 1-131 23.3+/-2.3 18.1 -28.5 23.9 +/-0.1;2.4 a Results obtained by Teledyne Brown Engineering Environmental Services Midwest Laboratory as a participant in the environmental sample crosscheck program operated by Environmental Resource 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.

'Unless otherwise indicated, the TBEESML results are given as the mean +/- 2 standard deviations for three determinations.

d ERA results are presented as the known values and expected laboratory precision (is, 1 determination) and control limits as defined by ERA.IVi -1 Table IV-2. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP), comparison of MAPEP and Teledyne's Midwest Laboratory results for various sample media'. Concentration in Bq/kgb MAPEP Resultd 1s, N=1 358.0 637.0 664.0 229.0 1.5 4.0 39.5 2.7 21.2 1,560.0 6.6 360.0 131.0 752.0 331.0 652.0 345.0 27.5 48.1 157.0 40.7 The analysis was repeated.

Result of reanalysis; 29.5+/-6.3 Bq/kg. STSO-854 SOIL Jan, 1999 Zn-65 2,840.0 Control Limits 250.6 -465.4 445.9 -828.1 464.8 -863.2 160.3 -297.7 1.0- 1.9 2.8-5.3 27.7- 51.4 1.9- 3.5 14.8- 27.6 1,092.0 -2,028.0 4.6- 8.5 252.0 -468.0 91.7- 170.3 526.4 -977.6 231.7 -430.3 456.4 -847.6 241.5- 448.5 19.3- 35.8 33.7- 62.5 109.9 -204.1 28.5- 52.9 1,988.0 -3,692.0 Lab Code" Results obtained by Teledyne Brown Engineering Environmental Services Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho. b All results are in Bq/kg or Bq/L as requested by the Department of Energy. Unless otherwise indicated, the TBEESML results are given as the mean +/- 1 standard deviations for three determinations.

d 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 Sample Type SPW-846 SPW-846 SPW-846 SPW-846 SPW-846 SPW-846 SPW-846 SPW-846 SPW-846 SPW-846 STSO-854 STSO-854 STSO-854 STSO-854 STSO-854 STSO-854 STSO-854 STSO-854 STSO-854 STSO-854 STSO-854 Date Collected WATER WATER WATER WATER WATER WATER WATER WATER WATER WATER SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL SOIL Analysis Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Jan, 1999 Teledyne Results +/-Standard Deviationc 337.6 +/- 33.8;47.7 656.6 +/- 65.7; 115.1 724.5 +/- 72.5; 102.5 234.2 +/- 23.4;33.1 1.1 +/- 0.1;0.2 3.2 +/- 0.3;0.5 40.9+/-4.1;5.8 2.7 +/- 0.3;0.4 20.8 +/- 2.1; 2.9 1,508.9 +/- 150.9;264.5 6.2 +/- 0.7; 0.9 311.1 +/- 3.6;31.3 134.6 +/- 2.2; 13.6 682.4 +/- 4.5; 68.4 319.5 +/- 3.6;32.2 667.0 +/- 21.5;70.1 349.0 +/- 7.0;35.6 25.3 +/- 1.0; 2.7 45.7 +/- 1.0;4.7 139.6 +/- 1.8; 14.1 23.5 +/- 0.8; 2.5 2,697.2 +/- 25.0; 270.9 Co-57 Cs-137 Fe-55 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 Am-241 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Pu-238 Pu-239/40 U-233/4 U-238 Table IV-3.Environmental Measurements Laboratory Quality Assessment Program (EML), comparison of EML and Teledyne's Midwest Laboratory results for various sample media'.Concentration in Bq/Lb Lab Sample Date Control Code Type Collected Analysis Teledyne Result' EML Resultd Limits'STAF-848 STAF-848 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STW-850 STVE-851 STVE-851 STVE-851 STVE-851 STVE-851 STVE-851 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STSO-852 STAF-853 STAF-853 STAF-853 STAF-853 STAF-853 Air Filter Air Filter Water Water Water Water Water Water Water Water Water Water Water Water Water Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Air Filter Air Filter Air Filter Air Filter Air Filter IV3 -1 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Gr. Alpha Gr. Beta Am-241 Co-60 Cs-137 Fe-55 Gr. Alpha Gr. Beta H-3 Ni-63 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Am-241 Cm-244 Co-60 Cs-137 K-40 Sr-90 Ac-228 Am-241 Bi-214 Cs-137 K-40 Pb-212 Pb-214 Pu-239/40 Sr-90 Th-234 U-233/4 U-238 Am-241 Co-57 Co-60 Cs-137 Pu-238 1.2 +/- 0.0; 0.1 2.0 +/- 0.0; 0.2 1.2+/-0.2; 0.2 54.4 +/- 2.0; 8.1 43.5 +/- 2.0; 6.6 81.5 +/- 19.5; 21.1 1,169.0 +/- 37.0; 147.3 1,274.6 +/- 33.3; 199.1 90.3 +/- 24.8; 27.7 125.8 +/- 6.3; 14.1 0.8 +/- 0.0; 0.1 1.0 +/- 0.1; 0.1 3.6 +/- 1.2; 1.3 0.3 +/- 0.1; 0.1 0.3 +/- 0.1; 0.1 3.4 +/- 0.9; 0.9 0.6 +/- 0.4; 0.4 21.0 +/- 1.9; 3.4 453.9 +/- 5.7; 62.0 667.6 +/- 33.7; 74.8 704.8 +/- 27.8; 75.8 45.1 +/- 7.4; 8.7 5.7 +/- 2.4; 2.5 67.3 +/- 3.3; 7.5 620.5 +/- 5.9; 62.3 355.7 +/- 24.6; 43.2 47.9 +/- 3.0; 5.7 70.1 +/- 4.8; 8.5 7.3 +/- 1.3; 1.5 28.3 +/- 3.5; 4.5 227.4 +/- 35.2; 41.9 132.9 +/- 6.9; 15.0 139.4 +/- 7.0; 15.6 0.1 +/- 0.0; 0.0 3.3 +/- 0.1; 0.3 5.3 +/- 0.2; 0.5 7.0 +/- 0.2; 0.7 0.3 +/- 0.0; 0.0 1.6+/-0.2 1.6 +/- 0.2 1.1 +0.1 51.1 +/- 3.0 39.4 +/- 2.4 97.4 +/- 1.7 1,090.0 +/- 20.0 1,100.0 +/- 40.0 121.1 +/- 6.8 114.0 +/- 10.0 0.8+/-0.0 1.0+/-0.1 4.1 +/-0.0 0.3 +/- 0.0 0.3 +/- 0.0 3.5 +/- 0.6 1.7+/- 0.5 21.5 +/- 1.0 467.0 +/- 20.0 656.5 +/- 20.0 736.1+/- 7.7 47.2+/-3.0 4.9 +/- 1.0 69.9 +/- 5.7 659.5 +/- 25.0 362.8

• 20.2 47.9 +/- 2.6 71.0 +/- 7.0 8.1 *1.1 32.4 +/- 0.5 138.0 +/- 4.1 140.7 +/- 1.2 145.0 +/- 1.7 0.1+/-0.0 3.0 +/- 0.1 5.0+/-0.3 6.1+/- 0.3 0.3+/-0.0 0.6- 1.6 0.6- 1.6 0.7- 2.6 0.9- 1.2 0.9-1.3 0.3- 1.5 0.5- 1.3 0.5- 1.3 0.7- 1.9 0.5- 1.5 0.8- 1.4 0.8- 1.4 0.5- 1.5 0.8- 1.4 0.8-1.4 0.7- 2.8 0.5- 1.7 0.6- 1.4 0.8- 1.5 0.8-1.5 0.5- 1.3 0.5- 1.5 0.5- 2.7 0.5- 1.5 0.8- 1.3 0.7- 1.7 0.5- 1.5 0.5- 1.5 0.7- 1.9 0.5 -2.8 0.5 -2.0 0.4- 1.6 0.4- 1.6 0.7- 2.4 0.6- 1.2 0.6- 1.4 0.7- 1.3 0.6- 1.5 I I Table IV-3.Environmental Measurements Laboratory Quality Assessment Program (EML), comparison of EML and Teledyne's Midwest Laboratory results for various sample mediaa.Concentration in Bq/Lb Lab Sample Date Control Code Type Collected Analysis Teledyne Resultc EML Resultd Limits" STAF-853 STAF-853 STAF-853 STAF-853 STAF-853 STW-855 STW-855 STW-855 STW-855 STW-855 STW-855 Air Filter Air Filter Air Filter Air Filter Air Filter Water Water Water Water Water Water Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Mar, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Increasing the sample counting time STW-856 STW-856 STW-856 STW-856 STW-856 STW-856 STW-856 STW-856 STSO-857 STSO-857 STSO-857 STSO-857 STSO-857 STSO-857 STSO-857 STSO-857 STSO-857 STSO-857 STSO-857 STVE-858 STVE-858 STVE-858 STVE-858 STVE-858 STVE-858 STAP-859 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 Air Filter Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Sep, 1999 Pu-239/40 0.1 + 0.0; 0.0 0.1 +/- 0.0 Sb-125 4.4 +/- 0.3; 0.5 3.6 +/- 0.3 Sr-90 0.7+/-0.2;0.2 0.6+/-0.0 U-233/4 0.1 +/- 0.0; 0.0 0.1 +/- 0.0 U-238 0.1 +/- 0.0; 0.0 0.1 +/- 0.0 Am-241 1.1 +/- 0.2; 0.3 0.9 +/- 0.1 Co-60 54.1 +/- 1.1; 7.9 52.4 +/- 2.2 Cs-137 77.1 +/- 1.4; 11.2 76.0 +/- 3.4 Fe-55 48.6 +/- 6.8; 8.4 53.0 +/- 2.0 U-233/4 0.5 +/- 0.1; 0.1 0.4 +/- 0.0 U-238 0.5 +/- 0.1; 0.1 0.4 +/- 0.0 achieved acceptable results (0.42+/-0.07 Bq/L).Gr. Alpha Gr. Beta H-3 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Ac-228 Bi-212 Bi-214 Cs-137 K-40 Pb-212 Pb-214 Sr-90 Th-234 U-233/4 U-238 Am-241 Cm-244 Co-60 Cs-137 K-40 Pu-239/40 Am-241 1,543.0 +/- 44.0; 193.3 1,053.0 +/- 31.0; 165.1 136.0 +/- 25.0; 31.1 0.8 +/- 0.1; 0.1 0.8 +/- 0.1; 0.1 2.2 +/- 1.0; 1.0 0.5 +/- 0.1; 0.1 0.5 +/- 0.1; 0.1 127.3 +/- 7.5; 14.8 107.4 +/- 2.6; 11.1 90.1 +/- 4.2; 9.9 195.9 +/- 4.0; 20.0 744.7 +/- 37.7; 83.5 123.4 +/- 3.7; 12.9 96.5 +/- 5.0; 10.9 13.0 +/- 1.4; 1.9 298.7 +/- 24.6; 38.7 184.4 +/- 8.5; 20.3 184.8 +/- 8.5; 20.3 3.3 +/- 0.9; 0.9 2.1 +/- 0.9; 0.9 17.6 +/- 1.9; 3.1 414.6 +/- 5.7; 56.7 502.8 +/- 34.7; 61.1 4.1 +/- 1.0; 1.1 0.1 +/- 0.1; 0.1 1,580.0 +/- 20.0 740.0 +/- 40.0 80.7 +/- 3.7 0.8 +/- 0.1 0.9 +/- 0.1 1.7+/- 1.0 0.4 +/- 0.0 0.4 +/- 0.0 124.0 +/- 4.8 140.0+/-14.0 69.5 +/- 1.8 204.0 +/- 5.0 780.0 +/- 27.0 127.0 +/- 4.8 72.0+/- 0.4 13.0 +/- 0.5 198.0 +/- 5.6 190.0 +/- 5.2 190.0 +/- 5.2 2.9 +/- 0.2 1.6 +/- 0.4 17.6 +/- 1.0 440.0 +/-20.0 513.0 +/- 20.0 4.3 +/- 0.5 0.1 +/-0.0 0.6- 1.5 0.6- 1.4 0.7- 2.7 0.8- 3.0 0.8- 3.0 0.8- 1.5 0.8- 1.2 0.8- 1.3 0.4- 1.5 0.8- 1.9 0.8- 1.3 0.6- 1.3 0.6- 1.5 0.7- 1.8 0.8- 1.3 0.8- 1.4 0.8- 1.5 0.8- 1.4 0.8- 1.3 0.8- 1.8 0.4- 1.2 0.8- 1.4 0.8- 1.3 0.8- 1.5 0.7- 1.3 0.7- 1.5 0.6-3.7 0.6- 1.9 0.5- 1.3 0.5- 1.3 0.7- 2.7 0.5- 1.7 0.7- 1.5 0.8- 1.4 0.8- 1.4 0.7- 1.6 0.7- 2.6 IV3 -2 Table IV-3.Environmental Measurements Laboratory Quality Assessment Program (EML), comparison of EML and Teledyne's Midwest Laboratory results for various sample media'.Concentration in Bq/Lb Lab Sample Date Control Code Type Collected Analysis Teledyne Resulte EML Resultd Limitse STAP-859 Air Filter Sep, 1999 Co-57 8.1 +/- 0.1; 0.8 7.7+/- 0.0 0.7- 1.4 STAP-859 Air Filter Sep, 1999 Co-60 6.7+/- 0.1; 0.7 6.4

• 0.4 0.8- 1.3 STAP-859 Air Filter Sep, 1999 Cs-137 7.1 +/- 0.2; 0.7 6.4 +/- 0.4 0.7 -1.4 STAP-859 Air Filter Sep, 1999 Mn-54 8.8 +/- 0.2; 0.9 7.9 +/- 0.5 0.8 -1.4 STAP-859 Air Filter Sep, 1999 Pu-238 0.1 +/- 0.0; 0.0 0.1 +/- 0.0 0.7 -1.4 STAP-859 Air Filter Sep, 1999 Pu-239/40 0.1:+/- 0.0; 0.0 0.1:+/- 0.0 0.8- 1.4 Insufficient sample volume (15 ml.) for accurate analysis.

STAP-859 Air Filter Sep, 1999 Ru-106 5.9 +/- 0.8; 1.0 5.5 +/- 1.8 0.6 -1.3 STAP-859 Air Filter Sep, 1999 Sr-90 0.6 +/- 0.2; 0.2 0.3 +/- 0.0 0.6 -1.9 STAP-859 Air Filter Sep, 1999 U-233/4 0.1 +/- 0.0; 0.0 0.1 +/- 0.0 0.8 -1.9 STAP-859 Air Filter Sep, 1999 U-238 0.1 +/- 0.0; 0.0 0.1 +/- 0.0 0.8 -2.6 STAP-860 Air Filter Sep, 1999 Gr. Alpha 3.2 +/- 0.1; 0.3 2.8 +/- 0.3 0.5 -1.6 STAP-860 Air Filter Sep, 1999 Gr. Beta 3.7 +/- 0.1; 0.4 2.7 +/- 0.3 0.7 -1.7 " The Environmental Measurements Laboratory provides the following nuclear species: Air Filters, Soil, Tissue, Vegetation and Water. Teledyne does not participate in the Tissue program.

b Results are reported in Bq/L"' with the following exceptions:

Air Filter results are reported in Bq/Filter"', Soil results are reported in Bq/Kg"', Vegetation results are reported in Bq/Kg". The results of elemental Uranium are reported in ug/filter", g, or ml. STeledyne results are reported as the mean of three determinations+/-standard deviation;total promulgated uncertainty.

d 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.'I I IV3 -3