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Zion, Units 1 & 2 - Submittal of Plant 2005 Annual Radiological Environmental Operating Report
	ML061380172
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Site:	Zion File:ZionSolutions icon.png
Issue date:	05/05/2006
From:	Schuster R J; Exelon Generation Co, Exelon Nuclear
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
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Exelon Generation www.exeloncorp.conN Zion Station Nucear 101 Shiloh Boulevard Zion, IL 60099-2797 Tel 847-746-2084 May 5, 2006 U.S. Nuclear Regulatory Commission Attn: Document Control Washington D.C. 20555-0001 Zion Nuclear Power Station, Units 1 and 2 Facility Operating License Nos. DPR-39 and DPR-48 NRC Docket Nos. 50-295 and 50-304

Subject:

Submittal of Zion Nuclear Power Station, Unit 1 and 2 2005 Annual Radiological Environmental Operating Report.In accordance with Technical Specification 5.7.2, "Annual Radiological Environmental Operating Report" Zion Station is submitting the 2005 Annual Radiological Environmental Operating Report for Unit 1 and 2.Technical Specification

5.7.2 requires

submittal of an Annual Radiological Environmental Operating Report before May 15 of each year. The attachment to this letter is the Annual Radiological Environmental Operating Report.If you have any questions about this report, please contact Ken Greenlee at 847-379-2700.

Respectfully, Ronald J. Schuster Decommissioning Plant Manager Zion Nuclear Station

Attachment:

2005 Annual Radiological Environmental Operating Report 'cc: Regional Administrator

-NRC Region III.I1e7 2S ZION NUCLEAR POWER STATION UNITS I and 2 Annual Radiological Environmental Operating Report 1 January Through 31 December 2005 NRC Docket No: 50-295 50-304 Prepared By Teledyne Brown Engineering Environmental Services Nuclear Zion Nuclear Power Station Zion, IL 60099 April 2006 Table Of Contents I. Summary and Conclusions

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1I II. Introduction........................................................................................................................3 A. Objectives of the REMP ..........

3.......................................3 B. Implementation of the Objectives

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3 Ill. Program Description

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3 A. Sample Collection

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3 B. Sample Analysis ..................................................

5 C. Data Interpretation

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5 D. Program Exceptions

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7 E. Program Changes .................................................

7 IV. Results and Discussion

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8 A. Aquatic Environment

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8 1. Public Water ..................................................

8 2. Fish ..................................................

8 3. Sediment ..................................................

9 B. Atmospheric Environment

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...9 1. Airborne ....................

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a. Air Particulates

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9 C. Ambient Gamma Radiation

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10 D. Land Use Survey .................................................

10 E. Summary of Results -Inter-laboratory Comparison Program ............................

11 Appendices Appendix A Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Quarterly and Annual Summaries for the Zion Nuclear Power Station, 2005 Appendix B Location Designation, Distance & Direction, and Sample Collection

&Analytical Methods Tables Table B-1: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2005 Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2005 Table B-2: Figues Figure B-1: Figure B-2: Inner Ring TLD Locations and Fixed Air Samplers of the Zion Nuclear Power Station, 2005 Fish, Water and Sediment Locations of the Zion Nuclear Power Station, 2005 Appendix C Data Tables and Figures -Primary Laboratory Tables Table C-1.1 Table C-1.2 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Table C-1.3 Table C-11.1 ii Table C-111.1 Table C-IV.1 Table C-IV.2 Table C-IV.3 Table C-V. 1 Table C-V.2 Table C-V.3 Table C-VI.1 Eigures Figure C-1 Figure C-2 Figure C-3 Figure C-4 Figure C-5 Figure C-6 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3 pCi/cu meter) in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Quarterly TLD Results for Zion Nuclear Power Station, 2005.Mean Quarterly TLD Results for the Inner and Other Locations for Zion Nuclear Power Station, 2005.Summary of the Ambient Dosimetry Program for Zion Nuclear Power Station, 2005.Summary of Collection Dates for Samples Collected in the Vicinity of Zion Nuclear Power Station, 2005.Public Water -Gross Beta -Stations Z-14 and Z-15 Collected-in the Vicinity of ZNPS, 2000.- 2005.Public Water -Gross Beta -Stations Z-1 6 and Z-1 8 Collected in the Vicinity of ZNPS, 2000 -2005.Public Water -Tritium -Stations Z-14 and Z-15 Collected in the Vicinity of ZNPS, 2000 -2005.Public Water -Tritium -Stations Z-1 6 and Z-1 8 Collected in the Vicinity of ZNPS, 2000 -2005.Air Particulates

-Gross Beta -Stations Z-01 and Z-02 Collected in the Vicinity of ZNPS, 2000 -2005.Air Particulate

-Gross Beta -Station Z-03 Collected in the Vicinity of ZNPS, 2000 -2005.iii Appendix D Inter-Laboratory Comparison Program Tables Table D-1 Table D-2 Table D-3 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2005 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2005 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)Teledyne Brown Engineering, 2005 Table D-4 Table D-5 Appendix E ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2005 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)Environmental, Inc., 2005 Effluent Data Appendix F Meteorological Data i iv I. Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for the Zion Nuclear Power Station (ZNPS) by Exelon covers the period 1 January 2005 through 31 December 2005. During that time period, 588 analyses were performed on 512 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of ZNPS had no adverse radiological impact on the environment.

Public water samples were analyzed for concentrations of gross beta, tritium and gamma emitting nuclides.

No fission or activation products were detected.Gross beta and tritium activities detected were consistent with those detected in previous years.Fish (commercially and recreationally important species) and sediment samples were analyzed for concentrations of gamma emitting nuclides.

Co-60, Cs-134 and Cs-1 37 activity was detected in fish. Sediment samples had Cesium-1 37 concentrations consistent with levels observed during the preoperational years.No Plant produced fission or activation products were found in sediment.Air particulate samples were analyzed for concentrations of gross beta and gamma emitting nuclides.

No fission or activation products were detected.Environmental gamma radiation measurements were performed quarterly using thermoluminescent dosimeters.

Levels detected were consistent with those observed in previous years.1 Intentionally left blank 2 II. Introduction The Zion Nuclear Power Station (ZNPS), consisting of two 1100 MWt pressurized water reactor owned and operated by Exelon Corporation, is located in Zion, Illinois adjacent to Lake Michigan.

Unit No. I went critical in December 1973. Unit No. 2 went critical in September 1974. The plant permanently ceased operation in January of 1998 and has been permanently defueled.

The site is located in northeast Illinois on the western shore of Lake Michigan, approximately 50 miles north of Chicago, Illinois.This report covers those analyses performed by Teledyne Brown Engineering (TBE), Global Dosimetry, and Environmental Inc. (Midwest Labs) on samples collected during the period 1 January 2005 through 31 December 2005.A. Objective of the REMP The objectives of the REMP are to: 1. Provide data on measurable levels of radiation and radioactive materials in the site environs.2. Evaluate the relationship between quantities of radioactive material released from the plant and resultant radiation doses to individuals from principal pathways of exposure.B. Implementation of the Objectives The implementation of the objectives is accomplished by: 1. Identifying significant exposure pathways.2. Establishing baseline radiological data of media within those pathways.3. Continuously monitoring those media before and during Station operation to assess Station radiological effects (if any) on man and the environment.

Ill. Program Description A. Sample Collection Samples for the ZNPS REMP were collected for Exelon Nuclear by Environmental Inc. (Midwest Labs). This section describes the general collection methods used by Environmental Inc. (Midwest Labs) to obtain environmental samples for the ZNPS REMP in 2005. Sample locations and descriptions can be found in Table B-1 and Figures B-1 and B-2, Appendix B. The sampling methods used by Environmental Inc. (Midwest Labs) are listed in Table B-2.Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of public water, fish, and sediment.

Two gallon water samples were collected monthly from four public water locations (Z-14, Z-15, Z-16 and Z-18). Control locations were Z-14 and Z-18. All samples were collected in new unused plastic bottles, which were rinsed at least twice with source water prior to collection.

Fish samples comprising the flesh of lake trout and burbot were collected semiannually at two locations, Z-26 and Z-27, both Control locations.

Sediment samples composed of recently deposited substrate were collected at one location semiannually, Z-25.Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulates.

Airborne particulate samples were collected and analyzed weekly at three locations (Z-01, 2-02 and Z-03). No control location was required.

Airborne particulate samples were obtained at each location, using a vacuum pump with glass fiber filters attached.

The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.Ambient Gamma Radiabton Direct radiation measurements were made using 2 CaF 200 and 2 LiF 100 LiF 4-chip Harshaw thermoluminescent dosimeters (TLD). Each location consisted of 2 TLD sets. The TLD locations were placed on and around the ZNPS site at the following loations: Z-101, Z-102, Z-103, Z-104, Z-105, Z-106, Z-107, Z-108, Z-110, Z-1 1, Z-112, Z-113, Z-114, Z-115, Z-301, Z-01, Z-02 and Z-03.No control location was required.

The specific TLD locations were determined by the following criteria: 1. The presence of relatively dense population;

2. Site meteorological data taking into account distance and elevation for each of the sixteen-22 1/2 degree sectors around the site, where estimated annual dose from ZNPS, if any, would be most significant;

3. On hills free from local obstructions and within sight of the vents (where practical);

4. And near the closest dwelling to the vents in the prevailing downwind direction.(Two TLDs -each comprised of two CaF 2 200 and 2 LiF 100 LiF 4-chip thermoluminescent phosphors enclosed in plastic -were placed at each location in a PVC conduit located approximately four to eight feet above ground level. The TLDs were exchanged quarterly and sent to Global Dosimetry for analysis.B. Sample Analysis This section describes the general analytical methodologies used by TBE and Environmental Inc. (Midwest Labs) to analyze the environmental samples for radioactivity for the ZNPS REMP in 2005. The analytical procedures used by the laboratories are listed in Table B-2.In order to achieve the stated objectives, the current program includes the following analyses: 1. Concentrations of beta emitters in public water and air particulates.

2. Concentrations of gamma emitters in public water, air particulates, fish and sediment.3. Concentrations of tritium in public water.4. Ambient gamma radiation levels at various site environs.C. Data Interpretation The radiological and direct radiation data collected prior to Zioh, Nuclear Power Station becoming operational were used as a baseline with which these operational data were compared.

For the purpose of this report, Zion Nuclear Power Station was considered operational at initial criticality.

In addition, data were compared to previous years' operational data for consistency and trending.

Several factors were important in the interpretation of the data: 1 .Lower Limit of Detection and Minimum Detectahle Concentration The lower limit of detection (LLD) was defined as the smallest concentration of radioactive material in a sample that would yield a net count (above background) that would be detected with only a 5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD was intended as a before the fact estimate of a system (including instrumentation, procedure and sample type) and not as an after the fact criteria for the presence of activity.

All analyses were designed to achieve the required ZNPS detection capabilities for environmental sample analysis.The minimum detectable concentration (MDC) is defined above with the exception that the measurement is an after the fact estimate of the presence of activity.2. Net Activity Calculation and Reporting of Results Net activity for a sample was calculated by subtracting background activity from the sample activity.

Since the REMP measures extremely small changes in radioactivity in the environment, background variations may result in sample activity being lower than the background activity effecting a negative number. An MDC was reported in all cases where positive activity was not detected.Gamma spectroscopy results for each type of sample were grouped as follows: For public water nine nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb/Zr-95, Cs-134, Cs-137 and Ba/La-140 were reported.For fish nine nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, NbIZr-95, Cs-134, Cs-137 and Ba/La-140 were reported.For sediment nine nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-95, NbIZr-95, Cs-1 34, Cs-1 37 and Ba/La-140 were reported.For air particulate nine, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb/Zr-95, Cs-1 34, Cs-1 37 and Ba/La-140 were reported.

Means and standard deviations of the results were calculated.

The standard deviations represent the variability of measured results for different samples rather than single analysis uncertainty.

D. Program Exceptions For 2005 the ZNPS REMP had a sample recovery rate in excess of 99%.Sample anomalies and missed samples are listed in the tables below: Table D-1 LISTING OF SAMPLE ANOMALIES Sample Location Collection Reason Type Code Date There were no anomalies for 2005.Table D-2 LISTING OF MISSED SAMPLES Sample Location Collection Reason Type Code Date TLD Z-1 14-1 & -2 July -Sept TLD was shipped to vendor, but vendor could not find the TLDs in the shipment.Each program exception was reviewed to understand the causes of the program exception.

Sampling and maintenance errors were reviewed with the personnel involved to prevent recurrence.

Occasional equipment breakdowns and power outages were unavoidable.

The overall sample recovery rate indicates that the appropriate procedures and equipment are in place to assure reliable program implementation.

E. Program Changes Beginning the third quarter 2005, Teledyne Brown Engineering Environmental Services became the primary laboratory and Environmental Inc. (Midwest Labs) became the QC laboratory.

Due to the change, the data tables and summary table presented in this report will appear different from previously submitted reports. This year, only the detected and non-detected results will be presented in the data tables. ,As a result of this change, the first half of the year data tables will display LLD (Lower Limit of Detection) values for non-detected nuclides and the second half of the year data tables will display MDC (Minimum Detectable Concentration) values for non-detected nuclides.

The summary table will include a longer list of gamma nuclides.

The data points for non-detects in the figures will consist of LLD values for the first half of the year and MDC values for the second half of the year.IV. Results and Discussion A. Aquatic Environment

1. Public Water Samples were taken weekly and composited monthly at four locations (Z-14, Z-15, Z-16 and Z-18). The following analyses were performed.

Samples from all locations were analyzed for concentrations of gross beta (Table C-1. 1, Appendix C). The values ranged from 1.9 pCi/I to 4.8 pCiA. Concentrations detected were consistent with those detected in previous years (Figures C-1 and C-2, Appendix C).Tratoum Quarterly composites of weekly collections were analyzed for tritium activity (Table C-1.2, Appendix C). The values ranged from<157 pCiA to 239 pCiA. Concentrations detected were consistent with those detected in previous years (Figures C-3 and C-4, Appendix C).Garmma Speotrometry Samples from both locations were analyzed for gamma emitting nuclides (Table C-1.3, Appendix C). All nuclides were less than the LLD for the first half of the year and less than the MDC for the second half of the year.2. Fish Fish samples comprised of lake trout and burbot were collected at two locations (Z-26 and Z-27) semiannually.

The following analysis was performed:

Gamma Spectrometry The edible portion of fish samples from both locations was analyzed for gamma emitting nuclides (Table C- 1.1, Appendix C).Cesium-137 was detected in one sample with an activity of 142 pCi/kg wet. All other nuclides were less than the MDC.3. Sediment Aquatic sediment samples were collected at one location (Z-25)semiannually.

The following analysis was performed:

Gamma Spectrometry Sediment samples from Z-25 were analyzed for gamma emitting nuclides (Table C-111.1, Appendix C). All nuclides were less than the MDC.B. Atmospheric Environment

1. Airborne a. Air Particulates Continuous air particulate samples were collected from three locations on a weekly basis. The three locations were within the ZNPS site boundary (Z-01, Z-02 and Z-03). The following analyses were performed:

Gross Rpta Weekly samples were analyzed for concentrations of beta emitters (Table C-IV.1 and C-IV.2, Appendix C).Detectable gross beta activity was observed at all locations.

Comparison of results among the three groups aid in determining the effects, if any, resulting from the operation of ZNPS. The results from the On-Site locations ranged from<6E-3 pCi/in 3 to 44E-3 pCi/M 3 with a mean of 21 E-3 pCi/M 3.Comparison of the 2005 air particulate data with previous years data indicate no effects from the operatiodof ZNPS.Concentrations detected were consistent with those detected in previous years.

Gamma Spectrometry Weekly samples were composited quarterly and analyzed for gamma emitting nuclides (Table C-IV.3, Appendix C). All nuclides were less than the MDC.C. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Harshaw (CaF and LF) thermoluminescent dosimeters.

Thirty-seven TLD locations were established around the site. Results of TLD measurements are listed in Tables C-V.1 to C-V.3, Appendix C.Most TLD measurements were below 25 mR/quarter, with a range of 16.0 mR/quarter to 27.0 mR/quarter.

D. Land Use Survey A Land Use Survey conducted during the May to September 2005 growing season around the Zion Nuclear Power Station (ZNPS) was performed by Environmental Inc. (Midwest Labs) for Exelon Nuclear to comply with Chapter 3 of the Zion' Offsite Dose Calculation Manual. The purpose of the survey was to document the nearest resident, milk producing animal and garden of greater than 500 ft 2 in each of the sixteen 22 1/2 degree sectors around the site. There were no changes required to the ZNPS REMP, as a result of this survey. The results of this survey are summarized below.

Distance in Miles from the ZNPS Reactor Buildings Sector Residence Livestock Milk Farm Miles Miles Miles AN 2.5 B NNE -CNE D ENE -E E F ESE -G SE H SSE -JS K SSW 1.9 LSW 1.1 MWSW 1.0 NW 1.1 P WNW 1.0 QNW 1.0 R NNW 1.3 E. Summary of Results -Inter-Laboratory Comparison Program The primary and secondary laboratories analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, vegetation and water matrices for (Appendix D). The PE samples, supplied by Analytics Inc., Environmental Resource Associates (ERA) and DOE's Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against the following pre-set acceptance criteria: 1 .Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of laboratory results and Analytics' known value. Since flag values are not assigned by Analytics, TBE-ES evaluates the reported ratios based on internal QC requirements, which are based on the DOE MAPEP criteria.2. ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, NELAC, state specific PT program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable.

The acceptance limits are either determined by a regression equation soecific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.-1 1 -

3. DOE Evaluation Criteria MAPEP's evaluation report provides an acceptance range with associated flag values.The MAPEP defines three levels of performance:

Acceptable (flag =WA"), Acceptable with Warning (flag = "W'), and Not Acceptable (flag = WN T). Performance is considered acceptable when a mean result for the specified analyte is +/- 20% of the reference value.Performance is acceptable with warning when a mean result falls in the range from +/-20% to +/-30% of the reference value (i.e., 20% <bias < 30%). If the bias is greater than 30%, the results are deemed not acceptable.

For the primary laboratory, 18 out of 19 analytes met the specified acceptance criteria.

One sample did not meet the specified acceptance criteria for the following reason: 1. Teledyne Brown Engineering's Analytics' September 2005 air particulate Fe-59 ratio of 1.35 exceeded the upper control limit of 1.30 due to a new technician not counting the air particulate in a petri dish.For the secondary laboratory, 19 out of 23 analytes met the specified acceptance criteria.

Four samples did not meet the specified acceptance criteria for the following reasons: 1. Environmental Inc.'s ERA's November 2005 water Gross Alpha result of 41.1 pCi/L exceeded the upper control limit of 33.4 pCi/L.This was due to using an Am-241 efficiency instead of a Th-232 efficiency when counting the sample. Using the correct efficiency gave a result of 27.0 pCi/L.2. Environmental Inc.'s ERA's November 2005 water Ra-228 result of 5.5 pCi/L exceeded the upper control limit of 5.0 pCi/L due to presence of radium daughters.

Delay in counting 100 minutes gave a result of 4.01 pci/L.3. Environmental Inc.'s MAPEP's January 2005 air particulate Sr-90 result of 2.2 Bqlkg exceeded the upper control limit of 1.76 Bq/kg.Reanalysis result was 1.56 Bq/kg.4. Environmental Inc.'s MAPEP's July 2005 soil Am-241 rksult of 48.4 Bqlkg exceeded the lower control limit of 56.77 Bqlkg due to incorrect sample weight being used in the calculation.

When recalculated with the correct sample weight, the result was 97.0 Bq/kg.The Inter-Laboratory Comparison Program provides evidence of "in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

I TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION NUCLEAR POWER STATION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: IST QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS PUBLIC WATER (PCI/LITER)

GR-B 12 4 <LLD<LLD 0 H-3 4 GAMMA MN-54 12 CO-58 200 <LLD 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 30 <LLD<LLD<LLD 0 0<LLD 0 FE-59<LLD 0 CO-60<LLD 0 ZN-65<LLD 0 ZRNB-95<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION NUCLEAR POWER STATION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 1ST QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEANM) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LMIIT (F) (F) (F) NAME NONROUTWNE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CS-134 CS-137 15 <LLD 18 <LLD 15 <LLD<LLD 0<LLD 0 BALA140<LLD 0 AIR PARTICULATE (E-3 PC]/CU.METER)

GR-B 39 10 25 (39/39)(13/41)N/A 25 (13/13)(13/41)Z-01 INDICATOR ONSITE 1 0.3 MILES S 0"3 GAMMA MN-54 3 10 <LLD N/A CO-58 FE-59 10 <LLD 15 <LLD 10 <LLD N/A N/A 0 0 CO-60 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 1ST QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2095 Name of Facility:

ZION NUCLEAR POWER STATION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 1ST QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZN-65 ZRNB-95 CS-134 40 <LLD 10 <LLD 10 <LLD 10 <LLD 25 <LLD N/A N/A 0 N/A 0 0 CS-137 N/A 0 BALA140 N/A 0 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD" QUARTERLY 34 N/A 20.1 (28/28)(18/24)19.2 (6/6)(17/22)24 (1/1)(24)Z-1 15-2 INDICATOR 0.4 MILES NW OF SITE 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 2ND QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS PULIC WATER (PCI/LITER)

GR-B 12 H-3 GAMMA MN-54 12 CO-58 4 <LLD 200 <LLD 15 <LLD 15 <LLD 30 <LLD I1 <LLD 30 <LLD 30 <LLD<LLD<LLD 0<LLD 0 0<LLD FE-59<LLD 0 CO-60<LLD 0 ZN-65<LLD 0 ZRNB-95<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 2ND QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CS-134 CS-137 BALA140 FISH (PCI/KG WET)GAMMA MN-54 3 15 <LLD Is <LLD 15 <LLD 130 <LLD 130 <LLD 260 <LLD 130 <LLD 260 <LLD<LLD<LLD 0 0<LLD 0 N/A CO-58 N/A 0 FE-59 N/A 0 CO-60 N/A 0 ZN-65 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 2ND QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZRNB-95 CS-134 CS-137 N/A <LLD 130 <LLD 150 <LLD N/A <LLD 150 <LLD NiA N/A 0 0 N/A 0 BALA140 N/A 0 44 SEDIMENT/SILT PCI/KG GAMMA MN-54 N/A 0 CO-s8 FE-59 100 <LLD 600 <LLD 100 <LLD N/A N/A 0 0 CO-60 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 2ND QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZN-65 ZRNB-95 CS-134 600 <LLD 200 <LLD ISO <LLD 180 <LLD 600 <LLD N/A N/A 0 0 N/A 0 CS-137 N/A 0 BALA140 N/A 0 AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 39 10 18 (39/39)(10/36)N/A 19 (13/13)(11/36)Z-02 INDICATOR ONSITE 2 0.2 MILES W 0-GAMMA MN-54 3 10 <LLD N/A 0 CO-58 10 <LLD N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 2ND QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER. 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 2ND QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FE-59 CO-60 ZN-65 15 <LLD 10 <LLD 40 <LLD 10 <LLD 10 <LLD 10 <LLD N/A N/A 0 0 N/A 0 ZRNB-95 N/A 0 tA CS-134 N/A 0 CS-137 N/A 0_ BALA140 25 <LLD N/A 0 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 34 N/A 17.8 (28/28)(16/21)16.7 (6/6)(16/18)21 (1/1)(21)Z-l 12-1 INDICATOR 0.7 MILES WSW OF SITE 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION .DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 3RD QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS PUBLIC WATER (PCI/LITER)

GR-B 12 4 4.0 (1/3)(4.0)<LLD 4.0 (1/3)(4.0)Z-15 INDICATOR LAKE COUNTY WATER WORKS 1.4 MILES NNW 0 H-3 4 GAMMA MN-54 12 CO-59 200 239 (1/2)(239)15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 30 <LLD<LLD<LLD 239 (1/2)(239)Z-15 INDICATOR LAKE COUNTY WATER WORKS 1.4 MILES NNW 0 0 FE-59 CO-60<LLD<LLD<LLD<LLD<LLD 0 0 0 ZN-65 0 ZRNB-95 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 3RD QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CS-134 CS.137 15 <LLD 18 <LLD 15 <LLD<LLD 0<LLD BALA140<LLD 0 AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 39 10 19.1 (36/39)(8/43)N/A 18 (12/13)(<6/40)Z-02 INDICATOR ONSITE 2 0.2 MILES W 0 GAMMA MN-54 CO-59 3 10 <LLD 10 <LLD 15 <LLD 10 <LLD N/A 0 N/A 0 FE-59 N/A 0 CO-60 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 3RD QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 3RD QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHfEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZN-65 ZRNB-95 CS-134 40 <LLD 10 <LLD 10 <LLD 10 <LLD 25 <LLD N/A N/A 0 0 N/A 0 CS-137 N/A 0 BALA140 N/A 0 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 32 N/A 19.1 (26/26)(17/22)19.5 (6/6)(18/20)22 (1/1)(22)Z-115-1 &2INDICATOR

0.4 MILES

NW OF SITE 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 4TH QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS PUBLIC WATER (PCI/LITER)

GR-B 12 4 <LLD 4.8 (1/3)(<157/<159) 4.8 (1/3)(<157/<159)

Z-18 CONTROL LAKE FOREST WATER WORKS 12.9 MILES S 0 H-3 4 GAMMA MN-54 12 CO-5S 200 <LLD 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 30 <LLD<LLD<LLD 0 0<LLD 0 FE-59<LLD 0 CO-60<LLD 0 ZN-65<LLD 0 ZRNB-95<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 4TH QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREIENTS CS-134 CS-137 BALA140 FISH (PCI/KG WET)GAMMA MN-54 3 15 <LLD 18 <LLD 15 <LLD 130 <LLD 130 <LLD 260 <LLD 130 <LLD 260 <LLD<LLD 0<LLD 0<LLD 0<LLD 0 CO-5R<LLD 0 FE-59<LLD 0 CO-60<LLD 0 ZN-65<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 4TH QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZRNB-95 N/A <LLD 130 <LLD<LLD<LLD CS-134 CS-137 BALA140 150 142 (1/2)142 N/A <LLD<LLD 142 (1/2)142 Z-27 INDICATOR LAKE MICHIGAN FARSITE 10.1 MILES N 0<LLD 0 w SEDIMENT (PCI/KG DRY)GAMMA MN-54 I 150 <LLD N/A 0 CO-58 FE-59 100 <LLD 600 <LLD 100 <LLD N/A 0 N/A CO-60 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 4TH QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZN-65 ZRNB-95 CS-134 600 <LLD 200 <LLD 150 <LLD 180 <LLD 600 <LLD N/A N/A 0 N/A 0 0 CS-137 N/A 0 BALA140 N/A 0 AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 38 10 20 (38/38)(6/44)N/A 22 (13/13)(7/44)Z-01 INDICATOR ONSITE 1 0.3 MILES S 0 GAMMA MN-54 CO-58 3 10 <LLD 10 <LLD N/A 0 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM 4TH QUARTER

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: 4TH QUARTER 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN(M)LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FE-59 CO-60 ZN-65 ZRNB-95 15 <LLD 10 <LLD 40 <LLD 10 <LLD 10 <LLD 10 <LLD 25 <LLD N/A 0 N/A N/A 0 N/A 0 0 CS-134 N/A 0 CS-137 N/A 0 BALA140 N/A 0 DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 34 N/A 22.1 (28/28)(19/26)21.2 (6/6)(20/23)26 (1/1)(26)Z-115-1 INDICATOR 0.4 MILES NW OF SITE 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLER POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50.295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT (LLD) MEASUREMENTS PUBLIC WATER (PCI/LJTER)

GR-B 48 4 4.0 (1/24)(4.0)4.8 (n4)(4.8)4.8 (1/24)(4.8)Z-18 CONTROL LAKE FOREST WATER WORKS 12.9 MILES S 0 H-3 16 200 239 (1/4)(4.0)<LLD 239 (1/4)(4.0)Z-15 INDICATOR LAKE COUNTY WATER WORKS 1.4 MILES NNW 0 GAMMA MN-54 CO-58 48 FE-59 15 <LLD 15 <LLD 30 <LLD 15 <LLD 30 <LLD 30 <LLD<LLD<LLD 0<LLD 0 0 CO-60<LLD ZN-65<LLD 0 ZRNB-95<LLD 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLER POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS CS-134 CS-137 BALA140 FISH (PCI/KG WET)GAMMA MN-54 6 15 <LLD 18 <LLD 15 <LLD 130 <LLD 130 <LLD 260 <LLD 130 <LLD 260 <LLD<LLD<LLD 0 0<LLD 0 N/A 0 CO-58 N/A 0 FE-59 N/A CO-60 N/A 0 ZN-65 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLER POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITII HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBEROF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZRNR.95 N/A <LLD 100 <LLD N/A 0 CS-134 N/A 0 CS-137 150 142 (1/2)142 N/A <LLD N/A 142 (1/2)142 Z-27 INDICATOR LAKE MICHIGAN FARSITE 10.1 MILES N 0 BALA140 N/A 0 SEDIMENT (PCI/KG DRY)GAMMA MN-54 2 CO-58 150 <LLD 100 <LLD 600 <LLD 100 <LLD N/A N/A 0 0 FE-59 N/A 0 CO-60 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLER POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS ZN-65 ZRNB-95 CS-134 600 <LLD 200 <LLD 150 <LLD 180 <LLD 600 <LLD N/A N/A 0 N/A 0 0 CS-137 N/A 0 BALA140 N/A 0 AIR PARTICULATE (E-3 PCIICU.METER)

GR-B 156 10 21 (153/156)(6/44)N/A 21 (51/52)(7/44)Z-01 INDICATOR ONSITE I 0.3 MILES S 0-- GAMMA MN-54 CO-58 12 10 <LLD 10 <LLD N/A 0 N/A 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLER POWER STATION, 2005 Name of Facility:

ZION DOCKET NUMBER: 50-295 & 50-304 Location of Facility:

ZION, IL REPORTING PERIOD: ANNUAL 2005 INDICATOR CONTROL LOCATION WTII HIGHEST ANNUAL MEAN LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN MEAN MEAN STATION # NUMBER OF PATHWAY SAMPLED ANALYSES ANALYSES LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FE-59 CO-60 ZN-65 15 <LLD 10 <LLD 40 <LLD 10 <LLD 10 <LLD 10 <LLD N/A N/A 0 N/A 0 0 ZRNB-95 N/A 0 CS-134 N/A 0 CS-137 N/A 0 BALA140 25 <LLD N/A DIRECT RADIATION (MILLI-ROENTGEN/QUARTER)

TLD-QUARTERLY 134 N/A 19.8 (1 10/1 10)(16/26)19.1 (24/24)(16/23)26 (1/1)(26)Z-115-1 INDICATOR 0.4 MILES NW OF SITE 0 MEAN AND RANGE BASED ON DETECTABLE MEASUREMENTS ONLY (M)FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION

& ANALYTICAL METHODS TABLE B-1: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Zion Nudear Power Station, 2005 Location Location Description Distance & Direction From Site A Public Watlr Z-14 Z-15 Z-16 Z-18 Kenosha Water Works (control)Lake County Water Works (indicator)

Waukegan Water Works (indicator)

Lake Forest Water Works (control)10.0 miles N 1.4 miles NNW 6.1 miles S 12.9 miles S R. Air ParticItlntps Z-01 Z-02 Z-03 Onsite 1 (indicator)

Onsite 2 (indicator)

Onsite 3 (indicator)

Lake Michigan Nearsite (indicator)

Lake Michigan Farsite (indicator)

0.3 miles

S 0.2 miles W 0.2 miles NNW At station 10.1 miles N Z-26 Z-27 D Sediment Z-25 Lake Michigan, Illinois Beach State Park (indicator)

0.2 miles

S F Environmental Mosimptry

-TIL tnner Ring Z-101-1 and-2 Z-102-1 and -2 Z-103-1 and -2 Z-104-1 and -2 Z-105-1 and-2 Z-106-1 and -2 Z-107-1 and -2 Z-1 08-1 and -2 Z-1 10-1 and -2 Z-111-1 and-2 Z-112-1 and -2 Z-113-1 and-2 Z-114-1 and-2 Z-1 15-1 and -2 Z-301-1 and -2 0.2 miles N 0.2 miles NNE 0.2 miles NE 0.1 miles ENE 0.1 miles E 0.1 miles ESE 0.1 miles SE 0.1 miles SSE 0.2 miles SSW 0.3 miles SW 0.7 miles WSW 0.6 miles W 0.6 miles WNW 0.4 miles NW 0.5 miles NW Z-01-1 and -2 Z-02-1 and -2 Z-03-1 and -2 Onsite 1 (indicator)

Onsite 2 (indicator)

Onsite 3 (indicator)

0.3 miles

S 0.2 miles W 0.2 miles NNW B-1 TABLE B-2: Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2005 Sample Analysis Sampling Method Analytical Procedure Number Medium Public Water Gamma Spectroscopy Monthly composite from TBE, TBE-2007 Gamma emitting radioisotope weekly grab samples. analysis Env. Inc., GS-01 Determination of gamma emitters bv gamma spectroscopv Public Water Gross Beta Monthly composite from TBE, TBE-2008 Gross Alpha and/or gross beta weekly grab samples. activity in various matrices Env. Inc., W(DS)-01 Determination of gross alpha and/or gross beta in water (dissolved solids or total residue)Public Water Tritium Quarterly composite from TBE, TBE-2011 Tritium analysis in drinking water by weekly grab samples. liquid scintillation Env. Inc., T-02 Determination of tritium in water (direct method)Fish Gamma Spectroscopy Semi-annual samples TBE-2007 Gamma emitting radioisotope analysis collected via electroshocking or other techniques Env. Inc., GS-01 Determination of gamma emitters_ by gamma spectroscopv Sediment Gamma Spectroscopy Semi-annual grab samples TBE, TBE-2007 Gamma emitting radioisotope analysis Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopv Air Gross Beta One-week composite of TBE, TBE-2008 Gross Alpha and/or gross beta Particulates continuous air sampling activity in various matrices through glass fiber filter paper Env. Inc., AP-02 Determination of gross alpha and/or aross beta in air particulate filters Air Gamma Spectroscopy Quarterly composite of each TBE, TBE-2007 Gamma emitting radioisotope Particulates station analysis Env. Inc.. GS-Oi Determination of gamma emitters by gamma soectroscoov TLD Thermoluminescence Quarterly TLDs comprised of Global Dosimetry Dosimetry two CaF 200 and two LiF 100 UF 4-chip Harshaw elements.l B-2

Tw MitoI wan 4 Amr8*ff~vLOcatn

.r$Ut iom kwft~t v1W TLO tadws 4!j Fid Air 1 5 WM2 ONE. ibMaWuid¢I Figure B-1 Inner Ring TLD Locations and Fixed Air Samplers of the Zion Nuclear Power Station, 2005 B-3

SAx4e Lochla[ inSl. V*WaWil 16 Wa At8h W*MvWatt O16L*ktUMtatv li*a Bo ardWit Uz tWig=m r Di°schr F 4 Afe Wtdgn torift4rnh(C)

I Figure B-2 Fish, Water and Sediment Locations of the Zion Nuclear Power Station, 2005 B-4 APPENDIX C DATA TABLES PRIMARY LABORATORY I

TABLE C-1.1 CONCENTRATIONS OF GROSS BETA IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZON NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION PERIOD Z-14 Z-15 Z-1 8 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0< 2.3 3.6 +/- 1.5 3.8 +/- 1.5 3.4 +/- 1.6 3.7 +/- 1.7< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0< 2.3 4.0 +/- 1.6 2.9 +/- 1.4 3.0 +/- 1.6< 2.2< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0 2.7 +/- 1.6 3.8 +/- 1.6 1.9 +/- 1.3< 2.1 2.6 +/- 1.6< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0< 4.0< 2.6 3.8 +/- 1.6 2.0 +/- 1.3 3.6 +/- 1.6 4.8 +/- 1.7 TABLE C-1.2 CONCENTRATIONS OF TRITIUM IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMA COLLECTION PERIOD Z-14 Z-15 Z-16 Z-1 8 JAN-MAR APR-JUN JUL-SEP OCT-DEC< 200< 200< 190< 159< 200< 200 239 +/- 108< 159< 200< 200 185 +/- 107< 157< 200< 200< 178< 157 I DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER C-l TABLE C-1.3 CONCENTRATIONS OF GAMMA EMITTERS IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF PCI/L i 2 SIGMA 0"3~STC COLLECTION PERIOD Z-14 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Z-15 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MN-54 CO-58 FE-59 CO-60 ZN-65 ZRN8-95 CS- 134.A .<15<15< 15<15<15< 15<1<1<5<4<6<7<15<15<15<15<15<15<1<1<7<2<6<7< 30< 30< 30< 30< 30<30<3<2< 15< 5< 11< 15<15<15<15<15<15<15<1<1<6<3<6<7< 30 30< 30< 30< 30< 30<2<1< 11<9' 15< 19< 30 30< 30< 30< 30< 30<2< 4< 12< 11< 9< 18<30 30<30<30<30<30<1<1<5<5<6<8< 30 30<30<30< 30< 30<2<2<7<7<4<8<15< 15< 15<15< 15< 15<1<1<5<3<6<10< 15< 15<15< 15< 15< 15<1< 2<5<5< 4< 10<18<18<18<18<18<18<1<1<6<4<8<7< 18< 18<18<18<18<18<1<2<5<5<5<7< 15< 15< 15<15< 15< 15< 13<1< 13<13< 12< 17< 15<15<15< 15<15<15<13< 4< 12<15<7< 17 CS-137 BALA140< 15< 15<15< 15< 15< 15<1<2<5<5<4<7<15<15<15<15<15<15<1<2<5<6<4<7< 30< 30< 30< 30< 30< 30<4<4< 11< 12<8' 16<15<15<15< 15< 15<15<1<2<5<5<5<6 DUE TO VENDOR CHANGE,< VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-1.3 CONCENTRATIONS OF GAMMA EMITTERS IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF PCI/L

2 SIGMA w STC COLLECTION PERIOD Z-16 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Z-18 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134<15<15<15<15<15<15<I<I<5<4<4<6<15<15<15<15<15<15<1<1<4<4<4<6 I15<15<15<15<15<15< 1<1'5<5'3<7<15<15<15<15<15'15<2<1 4<6<4<7<30<30<30<30<30<30<4<2< 10< 10<6'17<15<15<15<15 c15 c15<1<1<5<4<5<6<30 30<30<30<30<30<2<2< 10< 9<6<15<30 30<30<30<30<30<2<1<6<5<3<7<30 30'30'30<30<30<2<1<6<7<4<6<15 c15<15'15'15'15< 1< 1<5<4<3<7<15<15<15<15'15<15< 1< 1<4<4<4<7<18<18<18 18 18<18<1<1<6< 5<4<7 18<18 18<18<18<18<1<1<5<5<4<6< 15-15< 15< 15< 15< 15< 13< 2-12< 13< 5< 16 c 15< 15< 15< 15< 15< 15< 15<2< 7< 14< 6< 16 CS-137 BALA140< 30< 30< 30< 30< 30< 30<4< 2< 11< 11< 8< 15< 15< 15< 15< 15< 15< 15<1<1< 6<6< 4< 6< 30 30< 30< 30< 30< 30<2< 2< 9< 10<8< 12 DUE TO VENDOR CHANGE, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-11.1 CONCENTRATIONS OF GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF PCI/KG WET I 2 SIGMA COLLECTION PERIOD MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BALA-140 Si-c Z-26 Lake Trout 05/18/05 Lake Trout 10/05/05< 130< 38< 130< 130< 62< 59< 130< 46< 130< 130< 70< 71< 260< 76< 260< 260< 112< 152< 130< 51< 130< 130< 68< 48< 260< 96< 260< 260< 124< 139 NA< 55 NA NA< 69< 68< 130< 51 130 130< 61<46< 150< 58< 150 i 20< 150 +/- 27< 90 142 +/- 48 NA< 112 NA NA< 70< 215 Z-27 Lake Trout Burbot Lake Trout Burbot 05/19/05 05/19/05 10/18/05 10/18/05 4 DUE TO VENDOR CHANGE. < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE Cl11.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMA STC COLLECTION MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BALA-140 PERIOD Z-25 05/18/05 150 < 100 <600 100 c 600 c 200 < 150 < 180 < 600 10/05/05 < 23 c25 < 56 < 18 < 38 < 26 <18 <22 <42 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-IV.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER +/- SIGMA WEEK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 MEAN Z-01 41 A 4 31 .4 31 +/- 4 27 +/- 4 24 +/- 3 28 +/- 4 22 +/- 4 27 +/- 4 24 +/- 4 22 +/- 4 20 +/- 3 13+/- 3 21 +/- 3 17._ 3 22+/- 3 24._ 4 16+/- 3 13+/- 3 24 A 4 12._ 3 16+/- 3 11 1 3 22 +/- 4 19 +/- 3 11 +/- 3 29+/- 4 6 19+/- 5 11 +/- 4 13 +/- 5 26+/- 5 22+/- 5 16+/- 4 13+/- 4 20 A 4 15+/- 4 39 +/- 5 20 +/- 4 18 +/- 4 19+/- 4 7 4 22+/- 5 9 3 20 +/- 4 41 +/- 13 13+/- 4 19+/- 4 17+/- 4 18t 4 32 +/- 5 29 +/- 5 44+/- 6 U GROUP I Z-02 41 +/- 4 28 +/- 4 34+/- 4 25 +/- 4 25 +/- 3 30 +/- 4 20 +/- 4 25 +/- 4 24 +/- 4 20 +/- 4 19 +/- 3 15 +/- 3 18 +/- 3 21 +/- 3 19+/- 3 23 +/- 4 18 +/- 4 14+/- 3 24 +/- 4 12 +/- 3 17 +/- 4 15+/- 3 21 +/- 4 16 +/- 3 11 +/- 3 36 +/- 4 c6 16+/- 5 16+/- 5 9 4 24+/- 5 20+/- 5 13+/- 4 9 4 20+/- 4 18 +/- 4 40 +/- 6 29 +/- 5 20 +/- 4 22 +/- 5 7+/-4 17 +/- 4 17+ 4 12 +/- 4 16 +/- 4 35 12 14 +/- 4 15+/- 4 16 +/- 4 17 +/- 4 28 +/- 5 26 +/- 5 33 +/- 5 I Z-03 37 +/- 4 31 +/- 4 31 +/- 4 25 +/- 4 23 +/- 3 25 +/- 3 22 +/- 4 22 +/- 4 18+/- 4 21 +/- 4 19 3 17+/- 3 19 3 16+/- 3 19 +/- 3 22_ 3 13+/- 3 13 +/- 3 28 +/- 4 10 +/- 3 16 +/- 3 14 +/- 3 18 +/- 3 15 +/- 3 10 +/- 3 32 +/- 4 6 15 +/- 5 9 4 9 4 21 +/- 4 20+/- 5 16+/- 4 8 4 20._ 4 21 +/- 4 43 +/- 6 20 +/- 4 20 +/- 4 18+/- 4 6 4 22 A 5 9 3 23 +/- 5 38A 12 12 +/- 4 16 +/- 4 15+/- 4 20 +/- 4 18+/- 4 30 +/- 5 40 +/- 5-Il 21 +/- 17 21 +/- 16 20 +/- 17* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDA AND POSITIVE VALUES C-6 TABLE C-IV.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS (E-3 PCIICU METER) IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 ONSITE LOCATIONS COLLECTION PERIOD 12/29/04 -02102/05 02/02105 -03/02/05 03/09/05 -03/30/05 03/30/05 -04/27/05 04/27/05 -06/01105 06/01/05 -06/29/05 06/29/05 -08/03/05 08/03105 -08/31/05 08/31/05 -09/28/05 09/28/05 -11/02/05 11/02/05 -11/30/05 11/30/05 -12/28/05 12/29/03 -12/28/04 m MIN. MAX. MEAN +/-2 SD 23 41 30 +/- 12 18 30 24 +/- 7 13 21 18 +/- 5 13 24 19 +/- 7 10 28 16 +/- 11 10 36 20 +/- 17< 6 26 14 +/- 13 8 22 16 +/- 10 15 43 25 +/- 20 6 23 15 +/- 13 12 41 21 +/- 21 17 44 28 +/- 18< 6 44 21 +/- 11 C)-!j* THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDA AND POSITIVE VALUES TABLE C-IV.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF E-3 PCI/CU METER

2 SIGMA STC COLLECTION PERIOD Z-01 12/29 -03/30/05 Z-01 03/30 -06/29/05 Z-01 06/29 -09/28/05 Z-01 09/28 -12/28/05 MN-54 CO-58 FE-59 CO-60 ZN-65 ZRNB-95 CS-134 CS-137 BALA140 Z-02 Z-02 Z-02 Z-02 O Z-03 c Z-03 Z-03 Z-03 12/29 03/30 06/29 09/28 12/29 03/30 06/29 09/28 03/30/05 06/29/05 09/28/05 12/28/05 03/30/05 06/29/05 09/28/05 12/28/05< 10' 10< 1.7< 3.1' 10< 10< 2.3< 2.4< 10< 10'2.3< 2.2' 10' 10< 1.1< 3.2' 10' 10' 4.1< 3.5' 10< 10< 2.8< 3.4' 15< 15' 5.2<6.5< 15< 15' 13< 8.2< 15< 15< 6.0< 7.3< 10< 10< 2.1< 2.7< 10< 10< 2.2< 1.9' 10< 10< 2.5< 2.5< 40< 40< 2.4< 7.6< 40< 40< 4.4< 6.2< 40< 40< 5.4< 8.2' 10' 10< 2.4< 3.4' 10' 10< 3.6< 3.4' 10' 10< 3.0< 3.4 c 10 C 10 1.1< 3.2'10 410< 2.0< 3.5'10'10< 2.1< 3.0< 10 10< 1.4< 2.5< 10 10< 1.9< 3.4 c 10 10< 2.2< 2.4< 25< 25< 36< 15< 25< 25< 31 C 11< 25< 25< 18< 11 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER TABLE C-V.1 QUARTERLY TLD RESULTS FOR ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER

+/- 2 STANDARD DEVIATIONS STATION CODE Z-01-1 Z-01-2 Z-02-1 Z-02-2 Z-03-1 Z-03-2 Z-1 01-1 Z-101-2 Z-102-1 Z-102-2 Z-103-1 Z-103-2 Z-104-1 Z-104-2 Z-105-1 Z-105-2 Z-106-1 Z-106-2 Z-107-1 Z-107-2 Z-108-1 Z-108-2 Z-110-1 Z-1 10-2 Z-111-1 Z-111-2 Z-1 12-1 Z-1 12-2 Z-113-1 Z-1 13-2 Z-1 14-1 Z-1 14-2 Z-1 15-1 Z-115-2 Z-301-1 Z-301-2 MEAN+/- 2 S. D.19.0 N +/-3.3 20.3 +/- 5.3 19.3 +/- 4.4 18.3 t 4.1 18.8 +/- 4.4 19.3 +/- 3.4 18.3 +/- 3.4 18.3 +/- 2.5 20.8 +/- 4.1 20.5 +/- 3.5 19.5 t 2.6 20.0 +/- 4.3 18.3 +/- 3.4 18.5 +/- 1.2 19.0 +/- 5.9 19.5 t 4.2 18.8 +/- 5.0 18.0 +/- 3.7 19.8 1 3.4 19.0 +/- 4.3 19.3 +/- 5.5 19.5 +/- 2.6 19.3 5 5.3 19.0 +/- 4.3 19.0 +/- 4.3 20.3 +/- 4.4 21.8 t 4.4 20.3 3.4 20.0 +/- 5.2 20.8 +/- 5.3 21.7 +/- 5.0 21.0 +/- 5.3 22.5 +/- 5.8 22.0 +/- 4.3 22.3 3.4 23.5 +/- 4.8 JAN -MAR APR-JUN JUL-SEP OCT-DEC 19 22 20 17 18 19 18 18 23 20 19 19 18 19 21 19 19 19 20 19 21 21 19 19 19 21 21 20 19 23 22 19 23 24 24 22 17 18 16 16 16 17 16 18 18 20 18 18 16 18 16 17 16 16 19 17 16 18 17 16 17 19 21 18 17 19 19 20 19 19 20 22 19 18 20 20 20 20 19 17 21 19 20 20 19 18 17 20 18 17 18 18 18 19 18 20 18 18 20 21 21 18 (1)(1)22 22 22 23 21 23 21 20 21 21 20 20 21 23 21 23 20 19 22 22 22 20 22 22 22 20 23 21 22 23 25 22 23 23 24 24 26 23 23 27 I (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-9 TABLE C-V.2 MEAN QUARTERLY TLD RESULTS FOR THE INNER RING AND OTHER LOCATIONS FOR ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER

+/-t 2 STANDARD DEVIATIONS OF THE STATION DATA STATION CODE INNER RING+/-2S. D.OTHER JAN-MAR APR-JUN JUL-SEP OCT-DEC 20.3 +/- 3.6 18.0 t 3.2 19.3 +/- 3.4 22.3 +/- 3.6 19.2 +/- 3.4 16.7 +/- 1.6 19.5 +/- 1.7 21.2 +/- 2.0 TABLE C-V.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR ZION NUCLEAR POWER STATION, 2005 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER LOCATION INNER RING OTHER SAMPLES ANALYZED 118 24 PERIOD MINIMUM 16.0 16.0 I PERIOD MAXIMUM 27.0 23.0 PERIOD MEAN+/-2 S. D.20.0 +/- 4.7 19.1 +/- 3.9 INNER RING STATIONS -Z-101-1, Z-101-2, Z-102-1, Z-102-2, Z-103-1, Z-103-2, Z-104-1, Z-104-2, Z-105-1, Z-105-2, Z-106-1, Z-106-2, Z-107-1, Z-107-2, Z-108-1, Z-108-2, Z-110-1, Z-110-2, Z-111-1, Z-111-2, Z-112-1, Z-112-2, Z-113-1, Z-113-2, Z-114-1, Z-114-2, Z-115-1, Z-115-2, Z-301-1, Z-302-2 OTHER STATIONS -Z-01-1, Z-01-2, Z-02-1, Z-02-2, Z-03-1, Z-03-2 C-10 TABLE C-VI.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 PUBLIC WATER ITRITIUM LIQUID SCINTILLATION)

COLLECTION PERIOD Z-14 Z-15 Z-16 Z-18 JAN-MAR 01/01/05 -03/30/05 01/01/05 -03/30/05 01/01/05 -03/30/05 01/01/05 -03/30/05 APR-JUN 04/06/05 -06/29/05 04/06/05 -06/29/05 04/06/05 -06/29/05 04/06/05 -06/29/05 JUL-SEP 07/06/05 -09/28/05 07/06/05 -09/28105 07/06/05 -09/28/05 07/06/05 -09/28/05 OCT-DEC 10/05/05 -12/28/05 10/05/05 -12/28/05 10/05/05 -12/28/05 10/05/05 -12/28/05 PUBLIC WATER (GROSS BETA & GAMMA SPECTROSCOPY)

COLLECTION PERIOD Z-14 Z-15 Z-16 Z-18 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 01/01/05 -01/26/05 02/02/05 -02/23/05 03/02/05 -03/30/05 04/06/05 -04/27/05 05/04/05 -05/25/05 06/01/05 -06/29/05 07106/05 -07/27/05 08/03/05 -08/31/05 09/07/05 -09/28/05 10/05/05 -10/26/05 11/02/05 -11/30/05 12/07/05 -12/28/05 01/01/05 -01/26/05 02/02/05 -02/23/05 03/02/05 -03/30/05 04/06/05 -04/27/05 05/04/05 -05/25/05 06/01/05 -06/29/05 07/06/05 -07/27/05 08/03/05 -08/31/05 09/07/05 -09/28/05 10/05/05 -10/26/05 11/02/05 -11/30/05 12/07/05 -12/28/05 01/01/05 -01/26/05 02/02/05 -02/23/05 03/02/05 -03/30/05 04/06/05 -04/27/05 05/04/05 -05/25/05 06/01/05 -06/29/05 07/06/05 -07/27/05 08/03/05 -08/31/05 09/07/05 -09/28/05 10/05/05 -10/26/05 11/02/05 -11/30/05 12/07/05 -12/28/05 01/01/05 -01/26/05 02/02/05 -02/23/05 03/02/05 -03/30/05 04/06/05 -04/27/05 05/04/05 -05/25/05 06/01/05 -06/29/05 07/06/05 -07/27/05 08/03/05 -08/31/05 09/07/05 -09/28/05 10/05/05 -10/26/05 11/02/05 -11/30/05 12/07/05 -12/28/05 I C-11 TABLE C-VI.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 AIR PARTICULATE (GAMMA SPECTROSCOPY)

COLLECTION PERIOD Z-01 Z-02 Z-03 JAN-MAR 12/29/04 -03/30/05 12129/04 -03130105 12/29/04 -03/30/05 APR-JUN 03/30105 -06/29/05 03/30/05 -06/29105 03/30105 -06129/05 JUL-SEP 06129/05 -09/28/05 06/29/05 -09/28/05 06/29/05 -09/28/05 OCT-DEC 09/28105 -12/28105 09/28/05 -12/28105 09/28/05 -12/28/05 AIR PARTICULATE (GROSS BETA & 1-131)COLLECTION Z-01 Z-02 Z-03 PERIOD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 1 &z-/u4 uIU5WM 01/05/05 -01/12/05 01/12/05 -01/19/05 01/19/04 -01/26/05 01/26t04 -0202/05 02/02/04 -02/09/05 02/09/04 -02/16/05 02/16/04 -02123105 02/23/04 -03/02105 03/01/04 -03/08/05 03/08/04 -03/16/05 03/16/05 -03/23/05 03123/05 -03/30/05 03/30/05 -04/06/05 04/06/05 -04/13/05 04/13/05 -04/20/05 04/20105 -04/27/05 04127105 -05/04105 05/04/05 -05/11105 05/11/05 -05118/05 05/18105 -05/25105 05/25/05 -06/01/05 06/01/04 -06/08/05 06/08105 -06/15105 06/15/05 -06/22/05 06/22/05 -06/29/05 06/29/05 -07/06/05 07/06/04 -07/13/05 07/13/05 -07/20/05 07/20/05 -07/27/05 07/27/05 -08/03/05 08/03/05 -08/10105 08/10/05 -08/17/05 08/17/05 -08124/05 08/24/05 -08/31/05 08/31/05 -09/07/05 09107/04 -09114105 09/14105 -09/21/05 09/21/05 -09/28/05 09/28/05 -10105105 10/05/05 -10/12/05 10/12/05 -10/19105 10119105 -10126/05 10/26/05 -11/02/05 11/02/05 -11/09/05 11/09/05 -11/16105 11/16/05 -11/23105 11/23105 -11/30/05 11/30105 -12107/05 12/07/05 -12/14/05 12114/05 -12/21/05 12/21/05 -12/28/05 1Uif9U4 --U51UbU05 01/05/05 -01/12/05 01/12/05 -01/19/05 01/19/04 -01/26/05 01/26/04 -02/02105 02/02/04 -02/09/05 02109/04 -02/16105 02116/04 -02/23/05 02/23/04 -03/02/05 03/01/04 -03/08/05 03/08/04 -03/16/05 03/16/05 -03/23/05 03/23105 -03/30/05 03/30/05 -04/06/05 04/06/05 -04/13/05 04/13/05 -04/20/05 04/20/05 -04/27105 04/27/05 -05)04/05 05/04/05 -05/11/05 05/11/05 -05/18/05 05/18/05 -05/25/05 05/25/05 -06/01/05 06/01/04 -06108/05 06108105 -06/15/05 06/15/05 -06/22/05 06/22/05 -06/29105 06/29/05 -07/06/05 07/06/04 -07/13/05 07/13105 -07/20/05 07/20/05 -07/27/05 07/27/05 -08/03/05 08/03/05 -08/10/05 08/10/05 -08/17/05 08117105 -08/24/05 08/24/05 -08/31/05 08/31/05 -09/07/05 09/07/04 -09/14105 09/14105 -09/21/05 09/21/05 -09/28/05 09128/05 -10/05105 10/05/05 -10/12/05 10/12/05 -10/19/05 10/19/05 -10/26/05 10/26/05 -11/02/05 11/02/05 -11/09/05 11/09/05 -11/16/05 11/16/05 -11/23/05 11/23105 -11/30/05 11/30/05 -1207/05 12/07/05 -12/14/05 12/14/05 -12/21/05 12/21/05 -12/28/05/290UU4 -U07U75U0 01105/05 -01112/05 01/12/05 -01/19/05 01/19/04 -01/26/05 01126/04 -02/02/05 02/02/04 -02/09/05 02/09/04 -02116/05 02/16104 -02/23105 02/23104 -03/02/05 03/01/04 -03/08/05 03/08/04 -03/16/05 03/16105 -03/23/05 03123/05 -03/30/05 03/30/05 -04/06/05 04/06105 -04/13/05 04/13105 -04/20/05 04/20/05 -04/27/05 04/27/05 -05104105 05/04/05 -05/11/05 05/11/05 -05/18/05 05118105 -05125/05 05/25/05 -06/01/05 06/01/04 -06/08/05 06108/05 -06115105 06/15/05 -06/22/05 06/22/05 -96/29/05 06/29/05 -07/06/05 07/06/04 -07/13/05 07/13/05 -07/20/05 07120/05 -07127105 07/27/05 -08/03/05 08/03105 -08/10/05 08/10/05 -08117/05 08117/05 -08/24/05 08/24/05 -08/31/05 08/31105 -09/07/05 09/07/04 -09/14/05 09/14/05 -09/21/05 09/21/05 -09/28/05 09/28105 -10/05/05 10/05/05 -10/12/05 10/12/05 -10/19/05 10119/05 -10/26/05 10/26/05 -11/02/05 11/02/05 -11/09/05 11/09/05 -11/16/05 11/16/05 -11/23/05 11/23/05 -11/30/05 11/30/05 -12/07/05 1V07/05 -1V14/05 1V14/05 -12/21/05 12/21/05 -12/28/05 I C-12 TABLE C-VI.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2005 TLD STATION CODE 36S2 36D1 2E1 3S1 4E1 5S1 5H1 6C1 7S1 7E1 9Ct 10S3 1OE1 10F3 11S1 13S2 13C1 13E1 14S1 15D1 16F1 17B1 18S2 19D1 20D1 20F1 21S2 23S2 24D1 25S2 25D1 26S3 28D2 29S1 29E1 31S1 31 D1 31D2 34S2 34E1 JAN -MAR APR -JUN JUL -SEP OCT -DEC 01/01/05 -04101/05 01/01/05 -04/01/05 01/01/05 -04/01105 01101/05 -04/01105 01/01/05 -04/01105 01/01/05 -04101/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04101/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01105 01/01/05 -04/01/05 01/01/05 -04/01105 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01105 01/01/05 -04/01/05 01/01/05 -04/01105 01/01/05 -04/01105 01/01/05 -04/01/05 01/01/05 -04/01105 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01105 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04/01/05 01/01/05 -04101/05 01/01/05 -04/01/05 01/01/05 -04101/05 01/01/05 -04/01/05 01/01/05 -04101105 01/01/05 -04101105 01/01/05 -04/01105 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07101105 04/01/05 -07101/05 04/01/05 -07101/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01105 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01105 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04101/05 -07/01/05 04/01/05 -07/01/05 04101/05 -07/01/05 04101/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04101/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 04/01/05 -07/01/05 07/01/05 -10/01/05 07/01/05 -10101/05 07/01/05 -10/01105 07/01/05 -10/01/05 07/01/05 -10/01/05 07101/05 -10/01/05 07/01/05 -10101/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10101/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 07/01/05 -10/01/05 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10101/05 -01/01/06 10/01/05 -01/01/06 10/01105 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -OV01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01(06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01101/06 10/01/05 -01/01/06 10/01105 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 10/01/05 -01/01/06 i C-13 PUBLIC WATER -Z-15 COLLECTED FIGURE C-1 GROSS BETA -STATIONS Z-14 AND IN THE VICINITY OF ZNPS, 2000-2004 Z:14 Kenosha Water Works 13.0 01,41-co 1243140 t231-01 1243102 .1243143 12 0 Z146 Lake County Water Works 1030*10 ZS I"41-0-Q-M-M t2-3143 123XMM I FIGURE C-1 (cont.)PUBLIC WATER -GROSS BETA -STATIONS Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2005 Z-14 (C) Kenosha Water Works 5.0.4.0 3.0 .0 a.Z-15 Lake County Water Works 5.0 0 C.01-0-05 02-01-05 03-01-05 04-01-05 0541-05 061-05 07-01.05 08-01-05 09-01.05 10-0145 14-0145 12-0145 01-0145 DUE TO VENDOR CHANGE, VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUESIJULY THROUGH DECEMBER FIGURE C-2 PUBLIC WATER -GROSS BETA -STATIONS Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2004 Z46 Waukegan Water Works 10.0 e.o to 20 01.01.0 12-31-00 2f0 124. 141.0 1230.0 Z-1 8 Lake Forest Water Works 10 I 14 01t1.00 1241-*S23414%"14kS 12-3044 FIGURE C-2 (cont.)PUBLIC WATER -GROSS BETA -STATIONS Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2005 Z-1 6 Waukegan Water Works 5.0 4.0.j 3.0t-a Z-18 (C) Lake Forest Water Works 6.0 T 5.0o 4 4.0-3.0 +1.0-0.04 01401405 024145 034145 041-05 05-0145 06-0145 07-01-05 0-1-05 09-0145 10-01-05 11-0145 12-01405 01-0146 DUE TO VENDOR CHANGE, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER FIGURE C-3 PUBLIC WATER -TRITIUM -STATION Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2004 Z.14 (C) Kenosha Water Works 400 0 300 d 20-i100.0-100'-20 4 0141.02*4140 12.41" 1"21- 124142 1to0C4 2-15 Lake County Water Works SOO1 401 300 1 ( 200 1U-i-100o-41If140 1-*p t4t.540 RI-3i-ol I i24i-M i241 12404 PUBLIC WATER COLLECTED FIGURE C-3 (cont.)-TRITIUM -STATION Z-14 AND Z-15 IN THE VICINITY OF ZNPS, 2005 Z-14 (C) Kenosha Water Works 300 T 200 4-Cj C., 100 4 0 p p 01-01-05 thu 03-31-05 04-01-05 thru 06-30-05 07-01-05 thru 09-30-05 10-01-05 thru 12t31I05 Z-15 Lake County Water Works 300 T 250 +200 +-j C, 1SO +100 +50s 0 00 01 01-05 thru 03-31 05 04-01-05 thru 0CO S0 07-01-OS thnu 0C OO 10-01-OS thru 12/1a105 DUE TO VENDOR CHANGE, VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER FIGURE C-4 PUBLIC WATER -TRITIUM -STATION Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2004 Zi16 Waukegan Water Works ,4001 300 100La 0I-t100 010140 1241.00 1234141 2142 1 24 204 Z.18 (C) Lake Forest Water Works 4w 1 3 00 -a 1X-100 i p200 014100 i24i40 123141 1241-c 1241-0t 12-004 I FIGURE C-4 (cont.)PUBLIC WATER -TRITIUM -STATION Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2005 Z-1 6 Waukegan Water Works 250 T 200 -150 --j C, a.100 +/-50 -A I W .01-01-05 Ifru 03-31-05 04-01-05 thmu 06-30-05 07-01-05 thru 09-30-05 10-01-05 thru 12131/05 Z-1 8 (C) Lake Forest Water Works 250 T 200 4+150 +U a.100 +50s 0 01-01-05 thru 03-31-05 0401-05 thru 06-30-05 07-01-05 thru 09-30-05 10-01-05 tru 12131/05 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER FIGURE C-5 AIR PARTICULATES

-GROSS BETA -STATIONS Z-01 AND Z-02 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2004 Z01 Onsite No. 1, Southstde 100,0 6.0 0.0]to I 1410 1240 1411 124"4s 12414 1230.0 Z02 Onstte No. 2, Westslde Sat el-el 1t 1X431401 *2240 -tWGu l FIGURE C-5 (cont.)AIR PARTICULATES

-GROSS BETA -STATIONS Z-01 AND Z-02 COLLECTED IN THE VICINITY OF ZNPS, 2005 Z-01 Onsite No. 1, Southside 50.0 40.0*30.0 0 95 u'U.20.0 10.0-An1 01-05 02-01-05 03-01-05 04-01-05 05-01-05 06-01-05 07.01-05 06-01-05 06-01-05 10-01-05 11-45 12-01-05 01-01-06 Z-02 Onsite No. 2, Westside E C., a.DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUtS JULY THROUGH DECEMBER FIGURE C-6 AIR PARTICULATES

-GROSS BETA -STATIONS Z-03 COLLECTED IN THE VICINITY OF ZNPS, 2000 -2004 Z.03 Onslte No. 3, Northslde 1t s.Q 014140 1Z4^..O 12141 1241.02 12.3112 I FIGURE C-6 (cont.)AIR PARTICULATES

-GROSS BETA -STATIONS Z-03 COLLECTED IN THE VICINITY OF ZNPS, 2005 Z-03 Onsite No. 3, Northside 50.0 T 40.0 +E 0 a.Q 3 Cf 30.0 .20.0-10.0-0.0 01-01-05 02-01-05 03-105 041-05 05-01-06 06-01-05 07-01-05 04-01-05 09-01-5 10-01-05 11-01-05 12-0145 01-01-06 DUE TO VENDOR CHANGE., VALUES ARE LLD VALUES JANUARY THROUGH JUNE AND MDC VALUES JULY THROUGH DECEMBER I APPENDIX D INTER-LABORATORY COMPARISON PROGRAM l TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)March 2005 E4522-396 Milk E4523-396 Milk E4525-396 AP Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L 96.9 107 pCi/L 16.9 17.9 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L 82.7 217 314 123 125 110 158 118 191 140 92.3 229 334 139 130 115 160 111 198 144 172 250 104 97.1 86.3 120 83.2 148 108 0.91 0.94 0.90 0.95 0.94 0.89 0.96 0.96 0.99 1.06 0.96 0.97 0.87 1.11 1.01 0.98 0.98 0.93 1.12 1.09 0.94 A A A A A A A A A A A A A A A A A A A A A pCi 150 pCi 278 pCi 105 pCi 95.6 pCi 84.4 pCi 112 pCi 92.8 pCi 162 pCi 102 E4524-396 Charcoal 1-131 pCi 67.4 60.7 pCi/L 89.4 88.1 pCi/L 11.6 11.4 A A A June 2005 E4630-396 Milk Sr-89 Sr-90 1.01 1.02 E4631-396 Milk E4633-396 AP 1-131 Ce-141 Cr-51 Cs-I 34 Cs-137 Mn-54 Fe-59 Zn-65 Co-60 Ce-141 Cr-51 Cs-134 Cs-137 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCUL pCi/L pCiIL pCi/L pCiUL pCi/L pCi/L pCi pci pCi pci pCi pCi pCi pCI 82.3 91.6 278 81.1 180 124 61.1 156 136 79.2 263 69.7 135 94.9 48 120 104 86.9 92.4 303 95.0 189 125 63.9 155 145 64.2 210 66.1 131 87.0 44.4 108 101 0.95 0.99 0.92 0.85 0.95 0.99 0.96 1.01 0.94 1.23 1.25 1.05 1.03 1.09 1.09 1411 1.03 A A A A A A A A A W W A A A A A A E4632-396 Charcoal 1-131 pCi 88.9 92.5 0.96 A D-1 TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 2 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)September 2005 E4766-396 Milk E4767-396 Milk E4769-396 AP Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L 135.0 146.0 pCi/L 9.7 11.5 pCi/L pCi/L pCi/L pCi/L pCi/L pCiIL pCUL pCi/L pCi/L pCi/L pci pci pC!pci pci pCi pci pCi pCi 87.5 203 279 102 178 55.3 81.8 59.9 120 146 193 267 78.4 166 53.7 81.6 59.6 107 133 94.3 233 338 122.0 195 63.4 92.0 61.0 123 167 169 246 88.8 142 46.0 66.8 44.3 89.6 122 0.92 0.84 0.93 0.87 0.83 0.84 0.91 0.87 0.89 0.98 0.98 0.87 1.14 1.09 0.88 1.17 1.17 1.22 1.35 1.19 1.09 1.00 A A A A A A A A A A A A A A A A A W N (1)A A A E4768-396 Charcoal 1-131 pCi 63.9 64.2 December 2005 E4766-396 Milk E4767-396 Milk E4633-396 AP Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Ce-141 Cr-51 Cs-1 34 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L 114 128 pCi/L 11.6 10.3 pCi/L pCi/L pCiIL pCi/L pCi/L pCI/L pCi/L pCi/L pCi/L pCi/L 79.6 202 185 74.9 177 73.9 152 97.5 161 102 74.6 224 193 87.3 189 77.5 152 82.4 154 I11 201 173 78.3 170 69.4 137 73.9 138 99.1 0.89 1.13 1.07 0.90 0.96 0.86 0.94 0.95 1.00 1.18 1.05 0.92 1.10 1.13 0.87 1.14 1.12 125 1.27 1.25 1.10 A A A A A A A A A A A A A A A A A W W W A pCi 221 pCi 195 pCi 68.4 pCi 194 pCi 77.4 pCi 171 pCi 94.2 pCi 173 pCi 109 D-2 TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 3 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)December2005 E4632-396 Charcoal 1-131 pCi 73.3 73.3 1.00 A (1) New technician

-AP not counted in petri dish resulted in high Fe-59 activity.

Counting in petri dish, the Fe-59 would have been acceptable as evidenced by the 4Q05 AP recount data. NCR 06-01 (a) Teledyne Brown Engineering reported result.(b) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/?r volumetric measurements made during standard preparation.(c) Ratio of Teledyne Brown Engineering to Analytics results.(d) Analytics evaluation based on TBEinternalQClimits:A=

Acceptable.

Reported resul falls within ratio limits of .80-1.20.W-Acceptable with warning. ReportedresultfallswithinO.70-0.80or1.20-1.30.

N = NotAcceptable.

Reported result falls outside the ratio limits of < 0.70 and > 1.30.D-3 TABLE D-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1 OF 1)Identification Reported Known Month/Year Number Media Nuclide Units Value (a) Value (b) Control Limits Evaluation (c)May 2005 Rad 61 Water Sr-89 Sr-90 Ba-1 33 Cs-134 Cs-137 Co-60 Zn-65 Gr-A Gr-B H-3 pCi/L pCi/L pCi/L pCi/L pCiIL pCi/L pCi/L pCUL pCi/L pCi/L 37.5 5.37 88.6 70.5 201 37.5 122 35.5 35.6 24600 41.3 5.92 88.4 78.6 201 37.0 118 37.0 34.2 24400 32.6 -50.0 0.00- 14.6 73.1 -104 69.9 -87.3 184 -218 28.3 -45.7 97.6- 138 21.0 -53.0 25.5 -42.9 20200 -28600 A A A A A A A A A A Rad 61 Water 1-131 pCi/L 13.6 15.5 10.3 -20.7 A November 2005 Rad 63 Water Sr-89 Sr-90 Ba-133 Cs-1 34 Cs-137 Co-60 Zn-65 Gr-A Gr-B H-3 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L 18.0 16.6 31.7 30.8 26.8 83.9 109 19.5 34.0 12400 19.0 16.0 31.2 33.9 28.3 84.1 105 23.3 39.1 12200 10.3 -27.7 7.37 -24.7 22.5 -39.9 25.2 -42.6 19.6 -37.0 75.4 -92.8 86.8- 123 13.2 -33.4 30.4 -47.8 10100- 14300 A A A A A A A A A A Rad 63 Water 1-131 pCi/L 17.8 17.4 12.2'- 22.6 A (a) Teledyne Brown Engineering reported result.(b) The ERA known value is equalto 1OO% oftheparameterpresentin the standard as determinedbygravimetric and/or volumetric measurements made during standard preparation.(c) ERA evaluation:

A=acceptable.

Reported result falls within the Warning Limits. NA=not acceptable.

Reported result falls outside of the Control Limits. CE=check for Error. Reported result falls within the Control Limits and outside of the Warning Limit.D-4 TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)TELEDYNE BROWN ENGINEERING, 2005 (PAGE 1 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)April 2005 05-MaW13 Water Cs-134 Cs-137 Co-57 Co-60 H-3 Mn-54 Sr-90 Zn-65 Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L 108 305 215 241 283 314 0.093 509 655 310 234 219 512 642 890 127 88.90- 165.10 332 232.40 -461.60 227 158.90 -295.10 251 175.70 -326.30 280 196.00 -364.00 331 231.70 -430.30 no range given (1)496 347.20 -644.80 MaS13 Soil Cs-134 Cs-137 Co-57 Co-60 Mn-54 K-40 Zn-65 759 315 242 212 485 604 810 531.30 -986.70 220.50 -409.50 169.40 -314.60 148.40 -275.60 339.50 -630.50 422.80 -785.20 567.00- 1053 A A A A A A A A A A A A A A A A A A A A A A A A A A GrW13 Water Gr-A Gr-B RdF13 AP Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/L 0.601 0.525 >0.0 -1.05 Bq/L 1.54 1.67 0.84 -2.51 Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sarnple 3.26 2.05 4.78 3.02 3.31 1.15 3.14 3.51 2.26 4.92 3.03 3.33 1.35 3.14 0.232 0.297 2.46 -4.56 1.58 -2.94 3.44 -6.40 2.12 -3.94 2.33'- 4.33 0.95- 1.76 2.20 -4.08>0.0 -0.46 0.15 -0.45 GrF13 AP Gr-A Gr-B Bq/sample 0.0764 Bq/sample 0.305 April 2005 RdV13 Vegetation Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/kg 5.45 Bq/kg 4.80 Bq/kg 13.4 Bqokg 3.67 Bq/kg 6.45 Bq/kg 1.49 Bq/kg 7.71 5 4.1 9.88 3.15 5.18 1.65 6.29 3.50 -6.50 2.88 -5.34 6.92 -12.84 2.21 -4.10 3.63 -6.73 1.16 -2.15 4.40 -8.18 A A A*A A A A October 2005 05-MaW14 Water Cs-1 34 Cs-137 Co-57 Co-60 H-3 Mn-54 Sr-90 Zn-65 BqlL 142 BqlL 302 BqlL 251 BqlL 243 Bq/L 547 Bq/L 383 Bq/L 8.75 BqlL 324 167 333 272 261 527 418 116.90 -217.10 233.10 -432.90 190.40 -353.60 182.70 -339.30 368.90 -685.10 292.60r 543.40 A A A A A A A A 8.98 6.29 -' 1 1.67 330 231.00 -429.00 D-5 TABLE D-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)TELEDYNE BROWN ENGINEERING, 2005 (PAGE 2 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Range Evaluation (c)October 2005 MaS14 Soil Cs-134 Cs-137 Co-57 Co-60 Mn-54 K-40 Zn-65 Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L Bq/L 494 446 506 289 460 626 889 568 439 524 287 439 604 823 397.60 -738.40 307.30 -570.70 366.80 -681.20 200.90 -373.10 307.30 -570.70 422.80 -785.20 576.10 -1070 A A A A A A A GrW14 Water Gr-A Gr-B Bq/L 0.858 0.79 Bq/L 1.22 1.35 0.21 -1.38 0.85- 1.92 A A October 2005 RdF14 AP Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 4.11 3.16 6.14 2.86 4.54 2.12 4.28 3.85 3.23 6.2 2.85 4.37 2.25 4.33 2.70 -5.01 2.26 -4.20 4.34 -8.06 2.00 -3.71 3.06 -5.68 1.58 -2.93 3.03 -5.63 A A A A A A A GrF14 AP Gr-A Gr-B Bq/sample 0.304 0.482 >0.0 -0.80 Bq/sample 0.858 0.827 0.55 -1.22 RdV13 Vegetation Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg Bq/kg 4.35 5.99 17.0 4.87 7.40 2.03 11.8 4.09 5.4 13.30 4.43 6.57 2.42 10.2 2.86 -5.32 3.80 -7.06 9.31 -17.29 3.10 -5.76 4.60 -8.54 1.69 -3.15 7.14- 13.26 A A A A W A A A A* MAPEP reported the result as acceptable although the reported value of 13.4 Is higher than the acceptance range upper limit of 12.84. The acceptance range was expanded to +- 40% bias due to confusion regarding preparation process. MAPEP did not corrected the acceptance range on the report. I (1) The Sr-901n water was a MAPEP false positive test. The TBE reported result of 0.093 +/- 0.09OBqAL was the fored Sr-O activity and uncertainty, as required by MAPEP. The MDC for the sample was 0.145 pCi/L.(a) Teledyne Brown Engineering reported result.(b) The MAPEP known value is equal to 100% ofthe parameterpresentin the standard as determined bygravimetric and/or volumetric measurements made during standard preparation.(c) DOEIMAPEP evaluation:

A=acceptable, W=acceptable with warning, N=not acceptable.

D-6 TABLE D-4 ERA(a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM ENVIRONMENTAL, INC., 2005 (Page 1 of 2)Concentration (pCi/L)Lab Code Date Analysis Laboratory ERA Control Resuet Result' Limits Acceptance STW-1051 STW-1051 STW-1052 STW-1052 STW-1052 STW-1052 STW-1052 STW-1053 STW-1053 STW-1054 STW-1054 STW-1054 STW-1055 STW-1055 STW-1056 STW-1056 STW-1056 STW-1056 STW-1056 STW-1057 STW-1057 STW-1058 STW-1059 STW-1059 STW-1059 STW-1060 STW-1067 STW-1067 STW-1068 STW-1068 STW-1068 STW-1068 STW-1068 STW-1069 STW-1069 STW-1070 STW-1070 STW-1070 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 02/15/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 05/17/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 08/16/05 Sr-89 Sr-90 Ba-1 33 Co-60 Cs-134 Cs-137 Zn-65 Gr. Alpha Gr. Beta Ra-226 Ra-228 Uranium Sr-89 Sr-90 Ba-1 33 Co-60 Cs-1 34 Cs-137 Zn-65 Gr. Alpha Gr. Beta 1-131 Ra-226 Ra-228 Uranium H-3 Sr-89 Sr-90 Ba-133 Co-60 Cs-134 Cs-137 Zn-65 Gr. Alpha Gr. Beta Ra-226 Ra-228 Uranium 28.0 +/- 1.2 25.1 +/-0.7 52.9 +/-2.8 54.4 +/- 0.4 67.7 +/- 1.8 39.6 +/- 1.8 159.7 +/- 3.0 55.1 +/- 1.8 46.8 +/- 1.3 13.7 +/- 1.5 13.3 +/- 0.6 5.1 +/-0.2 45.1 +/-4.1 7.5 +/- 0.9 87.1 +/-2.0 38.4 +/- 0.8 75.3 +/- 0.7 201.0 +/- 8.4 130.0 +/- 6.7 42.7 +/- 2.9 34.0 +/- 0.4 14.7 +/- 0.5 6.6 +/- 0.1 19.3 +/- 0.7 9.6 +/- 0.1 24100.0 +/- 109.0 29.1 +/-3.0 36.0 +/- 0.6 107.0 +/- 1.7 15.2 +/- 0.2 89.1 +/-0.3 72.1 +/- 1.0 67.4 +/- 1.4 44.3 +/- 1.5 58.4 +/- 2.1 16.6 +/- 1.5 6.2 +/- 0.3 4.5 +/- 0.1 29.4 24.4 53.4 56.6 64.9 40.2 161.0 67.9 51.1 14.1 13.7 5.0 41.3 5.9 88.4 37.0 78.6 194.0 118.0 37.0 34.2 15.5 7.6 18.9 10.1 24400.0 28.0 33.8 106.0 13.5 92.1 72.7 65.7 55.7 61.3 16.6 6.2 4.5 20.7 -38.1 15.7 -33.1 44.2 -62.6 47.9 -65.3 56.2 -73.6 31.5 -48.9 133.0 -189.0 38.5 -97.3 38.5 -97.3 10.4 -17.8 7.8 -19.6 0.0 -10.2 32.6 -50.0 0.0 -14.6 73.1 -104.0 28.3 -45.7 69.9 -87.3 184.0 -218.0 97.6 -138.0 21.0 -53.0 25.5 -42.9 10.3 -20.7 5.6 -9.5 10.7 -27.1 4.9 -15.3 20200.0 -28600.0 19.3 -36.7 25.1 -42.5 87.7 -124.0 4.8 -22.2 83.4 -101.0 64.0 -81.4 54.3 -77.1 31.6 -79.8 44.0 -78.6 12.3 -20.9 3.5 -8.9 0.0 -9.7 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass I D-7 TABLE D-4 ERA(a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM ENVIRONMENTAL, INC., 2005 (Page 1 of 2)Concentration (pCiIL)Lab Code Date Analysis Laboratory ERA Control Resulte Result' Limits Acceptance STW-1072 STW-1072 STW-1073 STW-1073 STW-1073 STW-1073 STW-1073 STW-1074 e STW-1074 STW-1075 STW-1076 STW-1 076 STW-1076 STW-1077 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 11/15/05 Sr-89 Sr-90 Ba-1 33 Co-60 Cs-1 34 Cs-137 Zn-65 Gr. Alpha Gr. Beta 1-131 Ra-226 Ra-228 Uranium H-3 20.6 i 0.4 15.0 i 0.3 31.8 i 1.8 85.0

1.4 37.2

2.1 27.8 i 0.7 109.0

1.0 41.1 i 1.2 42.7 i 0.5 20.5 i 0.6 7.8 i 0.6 5.5 i 0.6 15.5 i 0.3 12500.0 i 238.0 19.0 16.0 31.2 84.1 33.9 28.3 105.0 23.3 39.1 17.4 8.3 3.5 16.1 12200.0 10.3 -27.7 7.3 -24.7 22.5 -39.9 75.4 -92.8 25.2 -42.6 19.6 -37.0 86.8 -123.0 13.2 -33.4 30.4 -47.8 12.2 -22.6 6.2 -10.5 2.0 -5.0 10.9 -21.3 10100.0 -14300.0 Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Fail Pass Pass* Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing In drinking water conducted by Environmental Resources Associates (ERA).b Unless otherwise indicated, the laboratory result Is given as the mean +/- standard deviation for three determinations.

C Results are presented as the known values, expected laboratory precision (1 sigma, I determination) and control limits as provided by ERA."The original samples were calculated using an Am-241 efficiency.

The samples were spiked with Th-232. Samples were recounted and calculated using the Th-232 efficiency.

Results of the recount: 27.01 +/- 2.35 pCi/L.* Decay of short-lived radium daughters contributed to a higher counting rate. Delay of counting for 100 minutes provided better results.The reported result was the average of the first cycle of 100 minutes, the average of the second cycie co~unts was 4.01 pCiIL D-8 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEPf ENVIRONMENTAL, INC., 2005 (Page 1 of 3)Concentration b Known Control Lab Codev Date Analysis Laboratory result Activity Limits a Acceptance STW-1045 01/01/05 Gr. Alpha STW-1045 01/01/05 Gr. Beta 0.45 +/-0.10 1.90 +/- 0.10 0.53 1.67 0.00 -1.05 0.84 -2.51 Pass Pass STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STW-1046 STVE-1047 STVE-1047 STVE-1047 STVE-1047 STVE-1047 STVE-1047 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 STSO-1048 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01105 01/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 Fe-55 H-3 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 Tc-99 U-233/4 U-238 Zn-65 Co-57 Co-60 Cs-134 Cs-1 37 Mn-54 Zn-65 Am-241 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 1.62 t 0.12 239.40 +/- 1.20 248.70 +/- 1.00 115.50 +/- 1.80 328.50 t 1.70 64.90 +/- 7.00 304.00 +/- 9.70 334.80 +/- 1.90 7.10 +/- 1.60 0.01 +/- 0.02 2.50 t 0.14 0.70 +/- 0.80 43.20 t 1.40 3.31 +/- 0.20 3.38 + 0.20 538.40 +/- 3.80 10.60 +/- 0.20 3.00 +/- 0.20 4.80 +/- 0.40 4.10 +/-0.30 5.10 +/-0.30 6.20 +/- 0.50 96.60 t 10.00 264.00 t 2.00 226.50 +/- 2.20 760.60 +/- 3.70 336.20 +/- 3.60 663.70 +/- 18.00 541.30 t 3.90 924.30 +/- 17.20 0.60 +/- 0.80 78.00 +/- 4.80 514.60 +/- 18.70 47.90 t 4.00 226.30 t 8.60 851.30 t 7.30 1.72 227.00 251.00 127.00 332.00 75.90 280.00 331.00 9.00 0.02 2.40 0.00 42.90 3.24 3.33 496.00 9.88 3.15 5.00 4.11 5.18 6.29 109.00 242.00 212.00 759.00 315.00 604.00 485.00 1220.00 0.48 89.50 640.00 62.50 249.00 810.00 1.20 -2.24 158.90 -295.10 175.70 -326.30 88.90 -165.10 232.40 -431.60 53.13 -98.67 196.00 -364.00 231.70 -430.30 0.00 -20.00 0.00 -1.00 1.68 -3.12 0.00 -5.00 30.03 -55.77 2.27 -4.21 2.33 -4.33 347.20 -644.80 6.92 -12.84 2.21 -4.10 3.50 -6.50 2.88 -5.34 3.63 -6.73 4.40 -8.18 76.30 -141.70 169.40 -314.60 148.40 -275.60 531.30 -986.70 220.50 -409.50 422.80 -785.20 339.50 -630.50 854.00 -1586.00 0.00 -1.00 62.65 -116.35 448.00 -832.00 43.75 -81.25 174.30 -323.70 567.00 -1053t.00 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STAP-1050 01/01/05 Gr. Alpha STAP-1050 01/01/05 Gr. Beta 0.11 +/- 0.03 0.38

0.05 0.23 0.30 0.00 -0.46 0.15 -0.45 Pass Pass D-9 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEPr ENVIRONMENTAL, INC., 2005 (Page 2 of 3)Concentration b Known Control Lab Code Date Analysis Laboratory result Activity Limits a Acceptance STAP-1049 STAP-1049 STAP-1049 STAP-1049 STAP-1049 STAP-1049 STAP-1049 STAP-1049 STAP-1049e STAP-1049 STAP-1049 STAP-1049 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 STW-1061 ST1W-1061 STW-1061 STW-1061 STW-1061 STW-1061 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 01/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 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 Fe-55 H-3 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 Tc-99 U-233/4 U-238 Zn-65 0.10 +/- 0.04 4.76 +/- 0.64 2.84 +/- 0.22 3.54 +/- 0.37 2.20 +/- 0.27 3.15 +/-0.21 0.16 +/-0.04 0.17 +/- 0.02 2.24 +/- 0.34 0.34 +/- 0.02 0.35 +/- 0.02 3.12 +/- 0.15 2.21 +/- 0.13 293.20 +/- 7.30 275.70 +/- 1.30 171.80 +/-4.00 342.10 +/-2.20 167.80 +/- 9.30 514.20 +/- 12.60 437.00 +/- 2.50 105.10 +/- 3.60 1.64 +/- 0.12 2.32 +/- 0.13 9.20 +/- 1.30 72.30 +/- 2.30 4.11 +/- 0.18 4.14 +/- 0.18 364.60 +/- 4.90 0.57 +/- 0.05 1.36 +/- 0.05 48.40 +/- 3.90 608.30 +/- 2.80 322.70 +/- 2.40 632.10 +/- 5.20 512.40 +/- 4.20 720.50 +/- 19.00 516.80 +/- 5.10 366.50 +/- 13.30 68.80 +/- 15.00 0.00 +/- 0.00 602.90 +/- 17.20 61.50 +/- 1.00 164.50 +/- 16.70 874.70 +/- 8.40 0.10 4.92 3.03 3.51 2.26 3.33 0.20 0.17 1.35 0.34 0.35 3.14 2.23 272.00 261.00 167.00 333.00 196.00 527.00 418.00 100.00 1.91 2.75 8.98 66.50 4.10 4.26 330.00 0.79 1.35 81.10 524.00 287.00 568.00 439.00 604.00 439.00 445.00 60.80 0.00 757.00 52.50 168.00 823.00 0.07 -0.13 3.44 -6.40 2.12 -3.94 2.46 -4.56 1.58 -2.94 2.33 -4.33 0.14 -0.25 0.14 -0.25 0.95 -1.76 0.24 -0.44 0.25 -0.46 2.20 -4.08 1.56 -2.90 190.40 -353.60 182.70 -339.30 116.90 -217.10 233.10 -432.90 137.20 -254.80 368.90 -685.10 292.60 -543.40 70.00 -130.00 1.34 -2.48 1.93 -3.58 6.29 -11.67 46.55 -86.45 2.87 -5.33 2.98 -5.54 231.00 -429.00 0.21 -1.38 0.85 -1.92 56.77 -105.43 366.80 -681.20 200.90 -373.10 397.60 -738.40 307.30 -570.70 422.80 -785.20 307.30 -570.70 311.50 -578.50 42.56 -79.04 0.00 -0.00 '529.90 -984.10 36.75 -68.25 117.60 -218.40 576.10 -1070.00 Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STW-1062 07/01/05 Gr. Alpha STW-1062 07/01/05 Gr. Beta STSO-1063 t STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 STSO-1063 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 07/01/05 Am-241 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 D-10 TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEPt ENVIRONMENTAL, INC., 2005 (Page 3 of 3)Concentrationb Known Control Lab Code Date Analysis Laboratory result Activity Limits a Acceptance STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 STVE-1064 07/01/05 Am-241 07/01/05 Co-57 07/01/05 Co-60 07/01/05 Cs-134 07/01/05 Cs-137 07/01/05 Mn-54 07/01/05 Pu-238 07/01/05 Pu-239/40 07/01/05 Sr-90 07/01/05 U-233/4 07/01/05 U-238 07/01/05 Zn-65 0.18 +/- 0.03 15.90 +/- 0.20 4.80 +/- 0.10 4.60 +/- 0.20 5.90 +/- 0.30 7.20 +/- 0.20 0.04 +/- 0.02 0.13 +/- 0.02 2.80 +/- 0.30 0.28 +/- 0.03 0.33 +/- 0.04 11.00 +/- 0.50 0.23 13.30 4.43 4.09 5.43 6.57 0.00 0.16 2.42 0.33 0.35 10.20 0.16 -0.30 9.31 -17.29 3.10 -5.76 2.86 -5.32 3.80 -7.06 4.60 -8.54 0.00 -1.00 0.11 -0.21 1.69 -3.15 0.23 -0.43 0.24 -0.45 7.14 -13.26 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STAP-1065 07/01/05 Gr. Alpha STAP-1065 07/01/05 Gr. Beta STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 STAP-1066 07/01/05 Am-241 07/01/05 Co-57 07/01/05 Co-60 07/01/05 Cs-134 07/01/05 Cs-1 37 07/01/05 Mn-54 07/01/05 Pu-238 07/01/05 Pu-239/40 07/01/05 Sr-90 07/01/05 U-233/4 07/01/05 U-238 07/01/05 Zn-65 0.30 +/- 0.04 0.97 +/- 0.06 0.14 +/- 0.03 5.81 +/-0.17 2.79 +/- 0.14 3.67 +/- 0.12 2.93 +/- 0.23 4.11 +/-0.26 0.11 +/-0.02 0.10 +/- 0.01 2.25 +/- 0.29 0.28 +/- 0.02 0.28 +/- 0.02 4.11 +/- 0.26 0.48 0.83 0.16 6.20 2.85 3.85 3.23 4.37 0.10 0.09 2.25 0.27 0.28 4.33 0.00 -0.80 0.55 -1.22 0.11 -0.21 4.34 -8.06 2.00 -3.71 2.70 -5.01 2.26 -4.20, 3.06 -5.68 0.07 -0.13 0.06 -0.12 1.58 -2.93 0.19 -0.35 0.20 -0.37 3.06 -5.68 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho b Results are reported In units of Bqikg (soil), BqIL (water) or Bqlotal sample (filters, vegetation) as requested by the Department of Energy.e Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

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. I The strontium carbonate precipitates were redissolved and processed.

The average of the three analyses was 1.34 pCiUL, although the recovery was only 30%. The result of a new analysis was 1.56 pCi/L.Incorrect sample weight used in calculation.

Result of recalculation:

97.0 i 7.8 Bq/kg.D-11 APPENDIX E EFFLUENT DATA I TABLE OF CONTENTS INTRODUCTION....................................................................................................................1

SUMMARY

.............................................................................................................................2 1.0. EFFLUENTS.......................................................................................................3

1.1. Gaseous

Effluents to the Atmosphere

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

3 1.2. Liquids Released to Lake Michigan ..............................................

3 2.0. SOLID RADIOACTIVE WASTE ............

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

3 3.0. DOSE TO MAN ..............................................

3 3.1. Gaseous Effluent Pathways .............................................

3 3.1.1. Gaseous Releases .........................................

..4 3.1.1.1. Gamma Dose Rates ..............................................

4 3.1.1.2. Beta Air and Skin Dose Rate ......................................

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

..5 3.1.3. Dose to Thyroid .............................................

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

5 3.3. Assessment of Dose to Member of Public ................................

..5 4.0. SITE METEOROLOGY

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

...6 j i Table of Contents (cont.)APPENDIX E-1 DATA TABLES AND FIGURES.............................................................

E-1.1 Station Releases Table 1.1-1 Gaseous Effluents

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

E-1.2 Table 1.2-1 Liquid Effluents

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

E-1.3 Table 2.0-1 Solid Radioactive Waste .............................................

E-1.4 Table 3.1-1 Maximum Doses Resulting from Airborne Releases .................

E-1.5 Table 3.2-1 Maximum Doses Resulting from Liquid Effluents

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

E-1.7 Table 3.3-1 1 OCFR20 Compliance Assessment

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

E-1.8 Table 3.4-1 Maximum doses Resulting from Airborne Releases Based On Concurrent Meteorological Data ....................................

E-1.9 ii INTRODUCTION Units I and 2 of the Zion Station, located in Zion, Illinois adjacent to Lake Michigan, are 1100 MWe (3520 MWt) Westinghouse pressurized water reactors.The plant permanently ceased operation in February of 1998 and has been permanently defueled.The station was designed to keep releases to the environment at levels below those specified in the regulations.

Historical data has been established that Zion, as a fully operational facility, did not contribute appreciable doses to the surrounding public. Sampling results for 2005 showed zero releases above background for a variety of monitored pathways, e.g. water, vegetation, air samples and TLIV.Liquid effluents from Zion Station are released to Lake Michigan in controlled batches after radioassay of each batch and continuously through a monitored pathway. There are no routine noble gas releases.

Due to decay, iodine is no longer present. The only noble gas that remains is Kr85 captured in the spent fuel assemblies stored in the fuel pool in the fuel building (1713). A new ventilation system for the FB has been installed to monitor possible releases.

The results of effluent analyses are summarized on a monthly basis and reported to the Nuclear Regulatory Commission as required per Technical Specifications.

Airborne concentrations of noble gases, 1-131, and particulate radioactivity in offsite areas are calculated using effluent and meteorological data.Environmental monitoring was conducted by sampling at indicator and control (background) locations in the vicinity of the Zion Station to measure changes in radiation or radioactivity levels that may be attributable to the station. If significant changes attributable to Zion Station are measured, these changes are correlated with effluent releases.1

SUMMARY

Gaseous and liquid effluents for the period contributed to only a small fraction of the Station Technical Specification limits. Calculations of environmental concentrations based on effluent and meteorological data for the period indicate that consumption by the public of radionuclides attributable to the Zion Station does not exceed regulatory limits. Radiation exposure from radionuclides released to the atmosphere represented the critical pathway for the period with a maximum individual total body dose estimated to be 8.74E-04 mrem for the year, where a shielding and occupancy factor of 0.7 is assumed. The assessment of radiation doses is performed in accordance with the Exelon Offsite Dose Calculation Manual (ODCM). The results of analysis confirm that the station is operating in compliance with 10CFR50 Appendix 1, 10CFR20 and 40CFR190.2

1.0 EFFLUENTS

1.1 Gaseous Effluents to the Atmosphere Measured concentrations and isotopic composition of noble gases, radioiodine, and particulate radioactivity released to the atmosphere during the year, are listed in Table 1.1-1. A total of O.OOE+00 microcuries of fission and activation gases was released with a maximum average release rate of O.OOE+00 pCi/sec during any one quarter period.A total of O.OOE+00 microcuries of 1-131 was released during the year with a maximum average quarterly release rate of O.OOE+00 pCi/sec.A total of 1.81 E+01 microcuries of beta-gamma emitters was released as airborne particulate matter with a maximum average quarterly release rate of 5.84E-07 pCi/sec. quarterly only.Alpha-emitting radionuclides were not measurable.

Also, O.OOE+00 curies of tritium were released with a maximum average quarterly release rate of O.OOE+00 VCi/sec.1.2 Liquids Released to Lake Michigan A total of 2.95E+05 liters of liquid waste containing O.OOE+00 microcuries was discharged from the station via an approved pathway after dilution with a total of 4.37E+10 liters of water. These wastes were released at a maximum quarterly average concentration of O.OOE+00 pCi/ml. A total of O.OOE-00 curies of tritium was released.

Alpha activity released totaled 0.00 pCi for the year. Monthly release estimates and principal radionuclides in liquid effluents are given in Table 1.2-1.2.0 SOLID RADIOACTIVE WASTE There were no solid radioactive waste shipments.

For more detail, refer to Zion Station 2005 Effluent Report.3.0 DOSE TO MAN 3.1 Gaseous Effluent Pathways Table 3.1-1 summarizes the doses resulting from releases of airborne radioactivity via the different exposure pathways.3

3.1.1 Gaseous

Releases 3.1.1.1 Gamma Dose Rates Offsite Gamma air and whole (total) body dose rates are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic composition of the gases, and meteorological data for the period. Based on measured effluents and average meteorological data, the maximum total body dose to an individual would be 8.74E-04 mrem (child) for the year (Table 3.1-1), with an occupancy or shielding factor of 0.7 included, and based on measured effluents and concurrent meteorological data would be 8.74E-04 mrem (Table 3.4-1). The maximum gamma air dose was 0.OOE+00 mrad based on measured effluents and average meteorological data (Table 3.1-1), and 0.OOE+00 mrad based on measured effluents and 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 purpose of calculating the dose from beta radiation incident on the skin. However, the actual dose to sensitive skin tissues is difficult to calculate due to the effect of the beta particle energies, thickness of inert skin and clothing covering sensitive tissues. For purposes of this report the skin is taken to have a thickness of 7.0 mg/cm 2 and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year was 0.OOE+00 mrem based on measured effluents and average meteorological data (Table 3.1-1), and 0.OOE+00 mrem based on measured effluents and concurrent meteorological data (Table 3.4-1).4 The maximum offsite beta air dose for the year was O.OOE+00 mrad based on measured effluents and average meteorological data (Table 3.1-1), and O.OOE+00 mrad based on measured effluents and 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. As Zion Station is not operational and 1-131 has decayed away, the maximum offsite concentration is estimated to be zero, as expected.3.1.3 Dse to Thyroid The hypothetical thyroid dose to a maximum exposed individual living near the station via ingestion of milk was calculated.

As Zion Station is not operational and 1-131 has decayed away, the maximum offsite concentration is estimated to be zero, as expected.3.2 Liquid Effluent Pathways The three principal pathways through the aquatic environment for potential doses to man from liquid waste are ingestion of potable water, eating aquatic foods, and exposure while on the shoreline.

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

NRC developed equations*

were used to calculate the doses to the whole body, lower GI tracts, thyroid, bone, skin; specific parameters for use in the equations are given in the Exelon Offsite Dose Calculation Manual. The maximum whole body dose (total body) for the year was O.OOE+00 mrem (adult) and no organ dose exceeded O.OOE+00 mrem (teenage liver) (Table 3.2-1). -3.3 Assessment of Dose to Member of Public During the period January to December, 2005, Zion Station did not 5 exceed the below limits as shown in Table 3.1-1 and Table 3.2-1 (based on yearly average meteorological data), and Figure 3.1-1 (based on concurrent meteorological data):* The RETS limits on dose or dose commitment to an individual 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 year).* The RETS limits on air dose in noble gases released in gaseous effluents to a member of the public from each reactor unit (10 mrads for gamma radiation or 20 mrad for beta radiation during any calendar year).* The RETS limits on dose to a member of the public due to iodine-131, iodine-133, tritium, and radionuclides in particulate form 'with half-lives greater than eight days in gaseous effluents released from each reactor unit (15 mrem to any organ during any calendar year).The 10CFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem).4.0 SITE METFOROI OGY A summary of the site meteorological measurements taken during each calendar quarter of the year is given in Appendix 11. The data are presented as cumulative joint frequency*Nuclear Regulatory Commission, Regulatory Guide 1.109 (Rev. 1)distributions of the wind direction for the 250' level and wind speed class by atmospheric stability class determined from the temperature difference between the 250' and 35'levels. Data recovery for these measurements was 99.4% during 2005 (Table 3.4-1).6 APPENDIX E-1 DATA TABLES AND FIGURES l Zion Station 2005 Stack Effluont Totals ra~snn--LLD ---I --a --LLD --LL~ sitL sms~ ¢rn~r _ _ _ _ ;L~ - -tfi~-ILLU a I -LU I I LLU .2<MUI~LLW 5 <X MUJ A LLUJ A[Y (I L LIJ L I <LkL m&ItJ I KLIU _ILLIJ_ M ACG sms Ul a _ _L LDa4L 4 LLU M4 LL It = _ = 4 LLD I LU 4,,,,, 4 tLL MDL A _2 -4 LD I LLD A MD=- N N ;2- -N~l N NL NU -U ;L}11:f~a"It I zt Lu I L < LLDI LDA LU asLLDa kwI LU lS UD. ItL I WU LLp lLIU I :UU I -[LU 3 41_ -bX -1 a MU LLU A L , L~p_,UtLUIU a tLU a Lt LDU a L L 5', o -mu a LLO MUA<LLU 4LLU I4tLU m 4LLU, _ < LLU_ a UI LLD, a 4.0,4LLU a 4U.1)v N N -N -N N N N N N N N N N N-1LiW MU: a I U J u L A LU I A IL I I , t1 a LLU a5 sULt*, ^ ;Atx -LLU a~ V _,LLD, aLt 1~kfl ,d14j _ LI ; LL LLU I kLIU a UI LLD a MiL)wIF t~~ _= sG: 2 Lc -LL) I 4:) LLU I <LI LLU A LU I4W IW LLD II LUAck LL D I-LL5 I5 LLI LU A -4 r I lLU atCLU -LU I Li_ _I I I 15 4 a LIILI L = I I 4 LD I= = = cLLU I;L 4LLU ILLU SLU I LL I 4LU aE L16 wEs =S3-1 _ UU-Ip U,-vr _LL _LI 'tLp _ L _ HusULU a g-i tku u4a LLp to ZLLD0 ~ L ;LU I G IL 4 WI- tLL I; 4 LLU _ 4 LLt)A)(A 04 (D Table 1.2-1 Liquid Effluents 2005 AER Water Worksheet Total mkroCudos I IJn I eb rI iWIlt Of Irlnd 01JuI I AUl bopgid 06 On I NOV Woili 011tal I W r t V t M'I_:::L 3 :.- '. 'L __1 'U:: '4 'LI 'It *I ':::- 'U 41 .4::: l .41 41 'U l l*~~ ~ mK_ _ _ _ _ _ _ _ _ ~H; ; -ct eM -CLC 4A cUX LLut sUM- LLCI -u <tt- LE LLD -C L uLMA 14U) 4Ltf CLU -CLL u W I4U ztt cUV c~tO ;u tta<L 'CU <Lt U ILCIUStt sub ¢tt cu cu etf un6~ Udi 4 z ; r LLsUUVUALD Cii D1UM < LSLU- ctt LAu tt-_ t _1, zIi W- Zb V LLILI :Lj u Wi< itsg UAI UAVLO i M u < UIc U rc LtPLE C 194 4LO c H c01 :r-5LL' uLL'L 4ci. L < UfL uL'iL' L uc< t LL < L ' L L L -4 .LLU 9>;Ne I tts VLV LLIB teup i < CL t u LUP LL9LC -CUI 4LO 4Ui 4i 13 1GO-141 < P UC-L 4;i : U 4U < Um- c U -ct c U eU etlwILc t <U cf 14 c UO14 Ic U cI<tLU tEat 11 Uc LL c -c U L Lt 4zL f <U s s H ni Ei : UlJI <l l i Zt 4 [iii Lt c U cL tlA~~~LL 4 LCI -Ct LU*9 T: LLVi cU VUc uL <tttt U uucs r8 1 .7 .87. ICcU sULEV U cU E c U c ; UU~ eUI~ MOL1 ILI cu F UA < M lu4 I K- LU24 U 4tI LUAU<U <t c U tU c UA3- cLIcL~ LU <U et < <t 4 tt V4L~ < U cttk'*7 NA-1-3101 LD I ILEU L1 t UI 4 1LU2 MW L UMIL 1 WV c UI< c UXSc tt -ct i L L[ -c ; U tlA ;cU- J5 j< u Ll II U slU eU RLI : U sLI s U HL U cUI c UML cUC~X61S L <LL cLLt4 uL i¢L U LLu sIc LL4 t U < U LL -3 lXiii c U < U < sC-cLDcL U LL4c L sUlc U _L Lc U s L<LEs tLsU LDI~cLI < EcL _ I< U UI {i si;g-E-1 .3 Table 2.0-1 Solid Radioactive Waste Table 2.0-1 has been deliberately deleted. For details on solid waste disposal, see the Zion 2005 Effluent Report E-1 .4 Table 3.1-1 Maximum Doses Resulting from Airborne Releases RLTWS v3.6.3 tZ10 VfSl 40CR410 URANIUM FUEL CYCLE DOSE REPORT GASEOUS DOSM SUW4ARY Report for: 2005 unit Range -From 1 To: 2 I&6P 005E LIt AKA*LYSIS 5122 25 0252X~#2 AKNUAL 2005 Age Dose Limit Max % of Annual -L t Group Organ (rer) (.rc.) Limit 2005 -n. Ay Organ ADULT GILLI 9.76t-04 1.13C.01 8.67t-03 20OS -Admin. Total dy CHILD rSY .74E-04 1.05E01 8.32C-03 200S -T.Spc. Any Organ ADULT GILLI 9.76E-04 1.505+01 6.519-03 Receptor:

S Composite Crit. Receptor -1P Distance:

0.00 (meters) compass Point: MA Critical Pathway: Ground Plane Oeposition (WoD)Major contributors C 0% or greater to total)UCld Percente O,-60 9.854+01 CS-137 1.12E+00 200 -T.Spc. Total Body CHILD T7O0Y 8.74E-04 l.SOE+O S.82E-03 Receptor:

S composite Crit. Receptor -IP Distance:

0.00 (meters) Compass Point: MA Cfistical Pathway: Ground Plane Deposition (GO)0Major contributors ( 0% or greater to total)nuclide Percentage CS-137 2.675+00 E-1.6 Table 3.1-1 (continued)

Maximum Doses Resulting from Airborne Releases RETOAS v3.6.3 <1O0> vSS1 40CFft9O URANIUM4 FUEL CYCLE aOSE REPORT_

_ ..... .u.. .. .t _... _. ........ ..OASEOUS OSM SUMARY Report for: 2005 Unit Rwvf -From: I To: 2 , AG DOSt L T ANALYSIS m .X Akk1AL 2005 , Dofe LiMit Max % of Annual -Limit (mrad) (urad) Limit 200$ -add. Can 0.00OC*0 1. 50C.1 0.00E.00 2005 -Adin. Beta O.OOE+OO 1.SOE+01 0.00C+00 2003 -T.SpC. GeWa 0.00C400 1.S0E+01 .00E+OO00 Receptor:

S camtssite Crit. Receptor -1P Distance:

.(meters) COpass Point: NA muclide Percentage 2005 -T.Spc. Beta 0.OOC+00 1.50L+01 0.00+00 Reeeptor:

S cc" giete Crit. Receptor -IP olstance:

O.00 (meters) compass Point, kA Nuclide Percentage

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

E-1.6 Table 3.2-1 Maximum Doses Resulting from Liquid Effluents RtTvAS v3.6.3 <cZO>VSMI 40CFR190 tRANIUM1 FUEL CYCLE DOSE REPORT LI(WOD OMt S4M Y Report for: 2005 Unit Range -From: 1 To: 2 Liquid Iteceptor PERIOD DOSE BY ORGAN ANO AGE GROUP (areu) --a- QWU=ER 4 *Ase Dos Li~rit Kua X of Annual -Limit Cup Organ (aftm) it") Lit 200S -A'dmin. Any raCn -.OOE+OO 5 +00O 0.00t+O0O 2005 -Admin. Total body ADULT TOOY 0.00CE00 2.25E+00 0.00+EO0 2005 -T.SpC. AW oroan 0.00CE00 7.soE+00 0.0OE+OO Critical Pathway: ',ajsr contributors ( OX or greater to total)KUcl de Percentage 2005 -T.Spc. Total Body ADULT TBODY Critical Pathway: potable water (Pwtr)Major contributors ( OX or greater to total)nuclide Percentage

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

O.OOE.00 3.OOEOO O.OE+00 I E-1 .7 Table 3.3-1 10CFR20 Compliance Assessment ZION STATION 2005 Unit I IOCFR20 Compliance Asscssnwal

1. IOCFR 20.1301 (a) (1) Compliance Total Effective Dose Equivalent 9.39-4 mrenm!ar 10 CFR 20.1301 (ai (1) limit 100 nirerNear% of the limit 2. Compliance Summary IOCFR20 I" Qtr. 29 Qtr. 32 Qtr. 4. Qtr TED)E 6.97E-4 1.72E-4 6.9915-5 0% of L.imit 0.000939 I E-1 .8 Table 3.4-1 Maximum Doses Resulting from Airborne Released Based on Concurrent Meteorological Data Zion Station -Unit 1 UAXIKUM DOSES RESULTING FgW AIRBORNE AMLEASES 2005 TYPE OF DOSE CAA AIR Wrmad)BETA AtR (erad)WHOLE PODY (arer)ORGAN (jare)CRITICAL PER0SO CTIAL O0AN FIRST QUARTER 0.000Vf00( N )O.00oEtOO( N )l.S909-05(W1

)2.34DE-05( H )2.230z-O5( SE)Teenager Lung SEcwo0 QUARTWER THtR3 ATER FOUATH QUARTEB O.000E+100 N ) O.00OEtO( N ) O.O¢OEt0D( N )O.000E+00)

N t O.O OE.0 00 N ) 0.0009+001 N I 6.470E-06( H ) 2.34DE-06i V ) 0.I0COE+00 N t 7.610E-061 b ) 2.7806t-1( N ) 0.OODE+O0( N )5.010E-0-6 N ) 3.750E-041ESE)

Q.OOOE+00( N I Teenager Teenager Adult Lung Lung ANNUAL 0.000E+00t N 1 0.000t+00 N )2.8730-05)

V 1 3.379E-0S( Y )2.8921-05o (se Teenager Lung COMPLIA14CE STATUS TYpe oF DOSE C hXA t A lrad)BETA AIR (mrad)WHOLE BODY (area)SRtN (cmea)ORCAN (urv)CRtTICAL PLASO CTr~TCAL ORGAN 10 CfR 50 APP. I QUARTERLY tXJECTIVE OF APP. I 5.0 0.00 10.4 0.00 2.5 0.00 7.5 0.00 7.5 0.00 7eenagar'Lung 10 CFR 50 APP.1 YEARLY OBJECTIVE O or APP. I 10.0 0.00 20.0 0.00 5.0 0.00 15.0 0.00 15.0 0.00 C tculation us-d release d~ta from the following:

Unit 1 -Ground Date of calculition, 3/21/2006.

f;E-1.9 Table 3.4-1 (continued)

Maximum Doses Resulting from Airborne Released Based on Concurrent Meteorological Data 2ir 2tlt i 4 -I' 2 t 2 mj.1]-b; UL,2R t2 S RISUV!Tf 13 ?'kali AIRWR14LJJE

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Z J _ TYtrp?3 ?'liQr fata; .~f ca sslclat'101,1 )ii21 /2606t E-1.10 APPENDIX F METEOROLOGICAL DATA Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Extremely Unstable -250Ft-33Ft Winds Measured at 35 Feet Delta-T (F)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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_ _ _ _ _ _ _ _ _ _ _ _Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_Total 0 0 0 0 0 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes0 0 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total_____0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0______0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 4 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 4 2 0 6 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes 0 0 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Slightly Unstable Winds Measured at-250Ft-33Ft Delta-T (F)35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 8-12 13-18 19-24 > 24 0 0 0 0 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 3 1 0 0 2 2 0 0 7 2 0 0 16 1 0 0 1 0 0 0 0 0 0 0 Total 0 4 0 0 0 0 0 0 0 2 0 4 4 10 17 1 0 Total 0 1 32 9 0 0 42 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 classes0 0 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Neutral -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 N 2 NNE 1 NE 3 ENE 1 E 0 ESE 2 SE 3 SSE 4 S 4 SSW 4 SW 1 WSW 5 W 3 WNW 3 NW 8 NNW 3 Variable 0 27 18 33 15 17 14 10 14 14 16 18 9 45 43 87 57 0 8-12 13-18 19-24 > 24 62 30 1 0 38 17 4 0 21 16 16 0 24 26 5 0 18 7 0 0 8 8 4 0 18 5 0 0 25 44 0 0 6 3 0 0 17 8 2 0 19 10 2 0 23 7 0 0 51 19 0 0 58 8 0 0 110 23 0 0 59 15 3 0 0 0 0 0 Total 122 78 89 71 42 36 36 87 27 47 50 44 118 112 228 137 0 Total 47 437 557 246 37 0 1324 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 classesi 0 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Slightly Stable-25OFt-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total_ _ _ ------------------------------N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 6 8 1 4 7 2 3 5 9 0 5 15 3 5 8 2 8 8 1 11 6 4 13 16 7 31 7 7 28 8 13 21 10 9 24 16 18 21 10 25 25 7 20 28 2 4 17 1 0 0 0 0 0 0 15 0 0 0 13 1 0 0 18 1 0 0 21 1 0 0 17 8 2 0 28 0 0 0 18 2 0 0 35 0 0 0 45 1 0 0 44 9 0 0 53 4 0 2 55 4 0 1 54 1 0 0 58 0 0 0 50 0 0 0 22 0 0 0 0 126 257 126 32 2 3 546 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 classesi 0o Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Stable Winds Measured at-250Ft-33Ft Delta-T (F)35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 N 2 NNE 0 NE 0 ENE 0 E 0 ESE 1 SE 0 SSE 1 S 4 SSW 5 SW 11 WSW 13 W 7 WNW 6 NW 1 NNW 1 Variable 0 0 0 0 1 0 0 0 2 23 2 2 6 8 5 2 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 16 0 0 0 9 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o 0 0 0 0 0 0 0 Total 2 0 0 1 0 1 0 19 37 7 13 15 13 14 6 3 0 Total 52 53 25 1 0 0 131 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes1 Hours of missing stability measurements in 0 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Extremely Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 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 0 0 0 0 0 0 0 0 0 1 5 5 5 3 1 1 0 0 0 0 0 0 0 0 0 0 2 16 2 16 2 1 8 6 2 1 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0 0 0 11 0 0 0 01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 0 0 0 0 0 0 0 7 32 7 6 5 9 7 2 1 0 Total 21 40 15 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stab.0 0 76 ility class: 0 stability classes Hours of missing stability measurements in all : 0 Zion Nuclear Station Period of Record: January -March 2005 Class -Extremely Unstable -25OFt-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 N_____0__

0---- 0---- 0-- ------- 0--- -N 0 0 0 0 0 0 NNE 0 0 0 0 0 0 NE 0 0 0 0 0 0 ENE 0 0 0 0 0 0 E 0 0 0 0 0 0 ESE 0 0 0 0 0 0 SE 0 0 0 0 0 0 SSE 0 0 0 0 0 0 S 0 0 0 0 0 0 SSW 0 0 0 0 0 0 SW 0 0 0 0 0 0 WSW 0 0 0 0 0 0 W 0 0 0 0 0 0 WNW 0 0 0 0 0 0 NW 0 0 0 0 0 0 NNW 0 0 0 0 0 0 Variable 0 0 0 0 0 °Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_Total 0 0 0 0 0 0 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classesl Hours of missing stability measurements in 3 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 0 1 1 0 2 NE 0 0 0 0 3 0 3 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 .0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 1 0 0 1 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 0 0 2 4 0 6 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 9 Hours of missing stability measurements in all stability classes:, 3 I Zion Nuclear Station Period of Record: January -March 2005 Class -Slightly Unstable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total Hours of calm in t Hours of missing w 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8-12 13-18 19-24 > 24 0 0 0 0 0 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 2 1 0 0 1 0 0 1 5 1 0 0 9 3 0 0 12 0 0 0 0 0 0 0 0 0 0 1 30 10 0 Total 0 4 0 0 0 0 0.0 0 2 3 1 7 12 12 0 0 41 his stability class: Find measurements in this 0 stal Hours of missing stability measurements in all ility class: stability classes:'3 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Neutral -250Ft-33Ft Delta-T (F)Winds Measured at 250 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_____0 0 0 0 1 0 3 3 1 0 0 0 0 1 1 0 0 3 10 12 13 7 8 15 6 6 1 4 8 11 9 14 4 0 8-12 13-18 19-24 > 24 26 54 39 5 17 15 11 11 26 19 14 21 13 27 14 6 6 10 3 4 4 10 1 4 10 38 21 0 17 12 14 0 14 9 5 5 22 5 4 4 12 15 12 3 19 21 13 0 38 35 20 7 52 62 11 6 78 111 31 5 28 25 15 7 0 0 0 0 Total 127 64 92 73 31 27 87.52 40 36 46 61 111 141 240 79 0 Total 10 131 382 468 228 88 1307 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sHours of missing stability measurements in a: tability class: 29 11 stability classes:'3 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 6 6 7 0 0 21 NNE 3 5 6 3 0 0 17 NE 1 4 3 11 4 0 23 ENE 0 2 5 17 0 1 25 E 0 2 4 3 5 4 18 ESE 4 2 6 9 9 4 34 SE 3 1 11 9 6 0 30 SSE 6 8 18 15 7 3 .57 S 3 8 8 9 1 0 29 SSW 1 6 15 13 6 1 42 SW 3 4 17 21 5 5 55 WSW 1 1 12 20 8 5 47 W 3 6 13 12 5 3 42 WNW 1 9 20 18 2 0 50 NW 1 5 16 15 1 0 38 NNW 0 6 18 6 0 0 30 Variable 0 0 0 0- 0 0 0 Total 32 75 178 188 59 26 558 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 17 Hours of missing stability measurements in all stability classes:'

3 Zion Nuclear Station Period of Record: January -March 2005 Stability Class -Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 1 NE 0 ENE 0 E 1 ESE 2 SE 0 SSE 0 S 0 SSW 0 SW 1 WSW 0 W 0 WNW 0 NW 2 NNW 0 Variable 0 Total 7 2 1 0 1 0 0 0 0 4 2 2 1 4 0 1 0 0 4 2 0 0 0 0 2 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 9 8 7 12 1 14 4 1 3 0 0 6 3 1 2 1 0 1 4 0 5 1 0 4 0 0 0 0 0 0 0 0 0 0 1 4 1 0 0 0 0 0 0 0 0 8 2 2 1 1 3 3 21 25 21 6 11 7 5 9 4 0 18 48 37 13 6 .129 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: all stability classes:, 3 Zion Nuclear Station Period of Record: January -March 2005 Class -Extremely Stable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)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 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 1 1 1 0 0 0 8-12 13-18 19-24 > 24 3 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 1 2 2 9 16 3 1 5 4 1 0 5 1 0 0 1 0 0 0 3 1 0 0 2 1 0 0 0 3 0 0 0 0 0 0 0 0 0 0 Total 3 0 1 0 0 0 2.6 30 11 7 2 5 5 3 0 0 Total 2 5 30 27 6 5 75 Hours of calm in this stability class: Hours of missing wind measurements in this 0 sta: Hours of missing stability measurements in all bility class: I stability classes:, 3 Zion Nuclear Station Period of Record: April -June 2005 Stability Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_0 0 0 1 0 0 4 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 1 2 0 10 7 0 5 0 o 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_0 1 4 0 3 0 0.0 0 3 3 17 5 0 1 0 0 0 7 21 9 0 37 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 9 all stability classes: 0 0 Zion Nuclear Station Period of Record: April -June 2005 Class -Moderately Unstable -250Ft-33Ft Stability Delta-T (F)Winds Measured at 35 Feet I Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 N_____0__

0---- 0---- 0---- 0---- 0----N 0 0 0 0 0 0 NNE 0 1 0 0 0 0 NE 0 3 3 0 0 0 ENE 0 1 1 0 0 0 E 0 0 0 0 0 0 ESE 0 0 1 0 0 0 SE 0 0 1 0 0 0 SSE 0 2 0 0 0 0 S 0 0 1 0 0 0 SSW 0 0 1 0 0 0 SW 0 0 2 2 0 0 WSW 0 1 5 2 0 0 W 0 2 8 1 0 0 WNW 0 0 3 1 0 0 NW 0 0 2 0 0 0 NNW 0 0 2 0 0 0 Variable 0 0 0 0 0 0 Total 0 1 6 2 0 1 1 2 1 1 4 8 11 4 2 2 0 Total 0 10 30 6 0 0 46 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 9 all stability classes:, 0o Zion Nuclear Station Period of Record: April -June 2005 Stability (Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Class -Slightly Unstable Winds Measured at-250Ft-33Ft Delta-T (F)35 Feet Wind Speed (in mph)1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_0 2 7 2 0 1 3 4 2 0 1 2 2 0 0 0 0 8-12 13-18 19-24 > 24 1 1 1 0 2 0 0 0 1 0 0 0 0 2 0 0 1 0 0 0 0 0 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 7 1 0 0 24 4 0 0 5 0 0 0 4 3 0 0 4 3 0 0 0 0 0 0 Total 3 4 8 4 1 1 4 6 2 0 3 10 30 5 7 7 0 Total 0 26 54 14 1 0 95 Hours of calm in this stability class: 0 Hours of missing wind measurements in this si Hours of missing stability measurements in a.-:ability class: 9 1l stability classes:, 0 Zion Nuclear Station Period of Record: April -June 2005 Stability Class -Neutral Winds Measured at-250Ft-33Ft Delta-T (F)35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 N 1 NNE 1 NE 2 ENE 7 E 8 ESE 4 SE 1 SSE 0 S 0 SSW 1 SW 1 WSW 0 W 3 WNW 1 NW 2 NNW 1 Variable 0 25 24 17 15 6 20 9 18 10 4 12 10 28 13 16 7 0 8-12 13-18 19-24 > 24 52 44 26 2 69 23 6 0 12 7 0 0 4 3 0 0 5 0 0 0 6 2 0 0 9 0 0 0 20 1 0 0 6 0 0 0 11 1 0 0 16 5 0 0 32 2 0 0 54 9 0 0 30 1 0 0 22 3 0 0 10 9 0 0 0 0 0 0 Total 150 123 38 29 19 32 19.39 16 17 34 44 94 45 43 27 0 Total 33 234 358 110 32 2 769 Hours of calm in this stability class: Hours of missing Hours of missing wind measurements in this stability measurements in 0 stability class: 9 all stability classes:, 0 Zion Nuclear Station Period of Record: April -June 2005 Stability Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 7 31 30 2 0 0 70 NNE 11 44 22 0 0 0 77 NE 7 25 4 3 0 0 39 ENE 10 20 1 1 0 0 32 E 12 24 1 0 0 0 37 ESE 2 12 3 1 0 0 18 SE 6 19 14 0 0 0 39 SSE 4 23 26. 2 0 0 ,55 S 8 48 13 0 0 0 69 SSW 7 15 14 2 0 0 38 SW 3 22 7 0 0 0 32 WSW 4 23 9 0 0 0 36 W 9 15 13 0 0 0 37 WNW 8 10 0 0 0 0 18 NW 5 13 0 0 0 0 18 NNW 9 14 1 0 0 0 24 Variable 0 0 0 0 0 0 0 Total 112 358 158 11 0 0 639 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes:, 0 Zion Nuclear Station Period of Record: April -June 2005 Class -Moderately Stable -250Ft-33Ft Delta-T (F)Stability Winds Measured at 35 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 8 4 3 3 8 4 5 6 10 15 4 9 11 8 9 8 0 13 7 9 9 9 8 13 36 48 4 8 11 2 9 6 5 0 0 1 1 0 1 1 6 22 13 0 0 1 0 0 1 0 0 0 0-- -0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0--------_ _0 21 0 12 0 13 0 12 0 18 0 13 0 24 0 .65 0 71 0 19 0 12 0 21 0 13 0 17 0 16 0 13 0 0 Total 115 197 47 1 0 0 360 Hours of calm in this stability class: Hours of missing Hours of missing wind measurements in this stability measurements in 0 stability class: 9 all stability classes:, 0 Zion Nuclear Station Period of Record: April -June 2005 Stability Class -Extremely Stable Winds Measured at-250Ft-33Ft Delta-T (F)35 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 1 2 1 2 3 4 4 0 8 6 14 8 8 4 7 0 1 3 0 0 2 5 8 8 34 6 2 3 3 3 0 0 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 3 1 0 0 3 2 0 0 0 0 0 0 20 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 2 4 2 5 8 13 12 32 39 14 8 17 11 11 4 7 0 Total 73 78 34 4 0 0 189 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 9 all stability classes:, 0 Zion Nuclear Station Period of Record: April -June 2005 Class -Extremely Unstable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 N 0 0 0 0 NNE 0 0 1 0 NE 0 0 2 0 ENE 0 1 1 0 E 0 0 2 1 ESE 0 0 0 0 SE 0 0 0 0 SSE 0 0 0 0 S 0 0 0 0 SSW 0 0 0 3 SW 0 0 0 1 WSW 0 0 0 5 W 0 0 0 5 WNW 0 0 0 0 NW 0 0 0 1 NNW 0 0 0 0 lariable 0 0 0 0 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-2 0 9 2 1 0 0 0 0 0 0 0 0 0 Total 0 1 2 2 3 0 0 0 0 3 3 16 6 0 1 0 0 Total 0 1 6 16 12 2 37 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 9 all stability classes: Hours of missing stability measurements in 4 Zion Nuclear Station Period of Record: April -June 2005 Class -Moderately Unstable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7_________N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_0 0 1 1 0 0 2 0 0 0 0 0 1 0 0 0 0 8-12 13-18 19-24 > 24 Total 0 0 0 0 0 2 0 0 0 2 0 3 0 0 4 1 1 0 0 3 0 0 0 0 0 1 0 0 0 1 1 0 0 0 3 0 0 0 0 , 1 0 0 0 1 0 0 1 0 1 0 2 2 0 4 1 6 3 0 10 1 5 3 0 10 1 1 2 0 4 0 3 0 0 3 0 0 0 0 0 0 0 0 0 0 Total 0 5 9 21 11 0 46 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 9 all stability classes:, Hours of missing stability measurements in 4 Zion Nuclear Station Period of Record: April -June 2005 Stability Class -Slightly Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 1 1 2 NNE 0 1 4 2 0 0 7 NE 0 1 3 2 0 0 6 ENE 0 2 0 0 2 0 4 E 0 0 1 0 0 0 1 ESE 0 0 1 0 0 0 1 SE 0 2 4 2 0 0 8 SSE 0 0 1 2 0 0 ,3 S 0 0 1 0 0 0 1 SSW 0 0 0 0 0 0 0 SW 0 0 0 3 0 0 3 WSW 0 0 2 5 4 0 11 W 0 0 4 18 8 0 30 WNW 0 0 0 3 2 )0 5 NW 0 0 0 3 7 0 10 NNW 0 0 0 3 0 0 3 Variable 0 0 0 0 0 0 0 Total 0 6 21 43 24 1 95 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: p Hours of missing stability measurements in all stability classes:-

4 Zion Nuclear Station Period of Record: April -June 2005 Stability Class -Neutral-250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ ------------------------------N 0 1 15 NNE 0 11 38 NE 0 6 7 ENE 1 10 8 E 1 13 11 ESE 0 13 8 SE 0 3 18 SSE 0 1 16 S 0 3 3 SSW 0 2 1 SW 1 2 7 WSW 0 2 5 W 0 0 25 WNW 0 5 21 NW 0 3 13 NNW 0 0 3 Variable 0 0 0 Total 3 75 199 Hours of calm in this stability class: 0 Hours of missing wind measurements in this si 48 27 60 151 35 16 10 110 5 7 4 29 2 5 1 27 6 0 0 31 2 3 0 26 12 2 0 35 19 4 0 .40 2 0 0 8 10 8 0 21 16 4 1 31 27 9 0 43 54 17 1 97 26 2 0 54 16 10 0 42 8 9 5 25 0 0 0 0 288 123 82 770:ability class: P Ll stability classesv Hours of missing stability measurements in a: 4 Zion Nuclear Station Period of Record: April -June 2005 Class -Slightly Stable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Hours of Hours of Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 N 0 2 11 20 14 0 NNE 0 14 42 31 5 0 NE 1 20 11 2 2 3 ENE 1 10 17 0 3 0 E 2 18 7 9 0 0 ESE 2 15 13 9 3 0 SE 1 8 26 23 8 1 SSE 1 5 21 31 8 4 S 2 3 15 17 6 1 SSW 0 2 3 20 5 0 SW 0 2 9 14 6 0 WSW 0 3 11 20 4 0 W 1 2 11 19 4 0 WNW 0 3 11 3 0 0 NW 1 3 3 6 0 0 NNW 0 2 8 3 0 0 Variable 0 0 0 0 0 0 Total 47 92 39 31 36 42 67 70 44 30 31 38 37 17 13 13 0 Total calm in t missing %12 112 219 227 68 9 647.his stability class: rind measurements in this 0 stability class: I?all stability classes:, Hours of missing stability measurements in 4 Zion Nuclear Station Period of Record: April -June 2005 Class -Moderately Stable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)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 0 0 0 2 2 0 1 0 0 1 0 1 0 0 0 1 0 4 5 10 7 13 3 6 8 2 4 3 1 0 0 1 1 0 8-12 13-18 19-24 > 24 3 3 0 0 9 3 1 0 7 0 0 0 1 2 1 0 7 2 4 0 7 9 7 0 11 14 8 0 15 37 18 0 15 15 10 0 14 12 0 0 4 4 1 0 2 7 0 0 7 6 0 0 4 2 0 0 5 7 0 0 6 2 0 0 0 0 0 0 Total 10 18 17 13 28 26 40 78 42 31 12 11 13 6 13 10 0 Total 8 68 117 125 50 0 368 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 9 all stability classes:, Hours of missing stability measurements in 4 Zion Nuclear Station Period of Record: April -June 2005 Stability Class -Extremely Stable -250Ft-33Ft Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE 1-3 0 1 1 0 0 1 1 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------1 4 2 1 2 1 0 1 0 1 1 1 0 0 0 1 1 0 0 0 2 0 2 0 5 0 7 0 6 3 5 0 0 5 9 1 1 8 12 1 20 5 8 4 4 2 0 11 S SSW SW WSW 0 7 15 27 9 0 58 0 2 13 8 1 0 24 0 10 0 1 0 1 W WNW NW NNW Variable Total 2 0 0 1 0 1 1 1 3 0 4 2 5 1 3 1 0 4 1 3 0 3 0 0 0 11 6 1 0 0 3 2 0 0 0 0 0 0 6 0 5 0 0 7 29 57 62 22 17 194 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 2 all stability classes:, 4 Zion Nuclear Station Period of Record: July -September 2005 Stability Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 1 6 0 0 7 NNE 0 10 26 0 0 0 36 NE 0 27 29 0 0 0 56 ENE 0 34 2 0 0 0 36 E 2 29 1 0 0 0 32 ESE 0 34 12 0 0 0 46 SE 0 28 15 0 0 0 43 SSE 0 8 25 0 0 0 33 S 0 7 3 0 0 0 10 SSW 0 2 18 5 0 0 25 SW 0 8 14 3 0 0 25 WSW 0 6 4 5 0 0 15 W 0 7 15 1 0 0 23 WNW 0 10 9 0 0 0 19 NW 0 4 6 0 0 0 10 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 2 214 181 20 0 0 417 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 9 Hours of missing stability measurements in all stability classes:, 0 Zion Nuclear Station Period of Record: July -September 2005 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction N NNE NE 1-3 0 1 0 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ -------------------------1 5 2 0 0 0 8 2 11 0 0 0 14 5 5 0 0 10 ENE E ESE SE SSE 0 11 0 1 2 1 0 4 0 0 0 0 0 11 0 0 7 3 3 0 0 7 7 0 3 S 1 SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 0 0 3 2 2 0 2 7 3 9 1 4 0 0 8 0 0 0 0 o a 0 0 0 0 0 0 10 0 12 5 0 6 0 2 1 0 3 0 0 0 0 0 0 0 0 2 1 3 1 0 0 1 0 0 0 0 10 0 10 0 3 0 4 0 0 Total 5 57 55 3 0 0 120 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes., 0 Stability i Wind Direction_________N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Zion Nuclear Station Period of Record: July -Septembe Class -Slightly Unstable -250 Winds Measured at 35 Feet Wind Speed (in mph)r 2005 Ft-33Ft Delta-T (F)1-3 4-7 1 0 0 0 3 0 5 1 1 1 1 0 0 0 0 1 0 4 18 9 4 3 3 9 5 6 7 2 1 6 6 7 0 0 8-12 13-18 19-24 > 24 16 5 0 0 4 0 0 0 9 2 0 0 1 3 0 0 0 0 0 0 4 1 0 0 6 0 0 0 25 0 0 0 4 0 0 0 3 0 0 0 4 1 0 0 2 0 0 0 4 1 0 0 2 0 0 0 8 2 0 0 2 0 0 0 0 0 0 0 Total 26 22 20 8 6 8 20 31 11 11 8 3 11 8 17 3 0 Total 14 90 94 15 0 0 213 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 9 all stability classes:, Hours of missing stability measurements in 0 Stability Zion Nuclear Station Period of Record: July -September 2005 Class -Neutral -250Ft-33Ft Winds Measured at 35 Feet Wind Speed (in mph)Delta-T (F)Wind Direction 1-3 4-7 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 5 2 5 1 10 8 6 3 6 6 5 1 3 2 2 1 0 36 33 26 8 12 15 21 30 33 21 9 21 28 14 18 26 0 8-12 13-18 19-24 > 24 53 15 0 0 20 0 0 0 5 4 0 0 3 0 0 0 2 0 0 0 2 1 0 0 17 0 0 0 21 5 0 0 6 0 0 0 14 1 0 0 23 0 0 0 8 1 0 0 5 0 0 0 0 1 0 0 5 2 0 0 7 0 0 0 0 0 0 0 Total 109 55 40 12 24 26 44 59 45 42 37 31 36 17 27 34 0 Total 66 351 191 30 0 0 638 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0, all stability classes:, Hours of missing stability measurements in 0 Stability Wind Direction Zion Nuclear Station Period of Record: July -Class -Slightly Stable Winds Measured at Wind Speed September 2005-250Ft-33Ft 35 Feet Delta-T (F)(in mph)1-3 4-7 N 5 NNE 9 NE 2 ENE 4 E 3 ESE 2 SE 5 SSE 12 S 16 SSW 14 SW 15 WSW 6 W 6 WNW 7 NW 7 NNW 18 Variable 0 13___13 3 3 1 0 6 14 9 64 61 12 25 21 11 23 19 0 8-12 13-18 19-24 > 24 3---0 0---- 0----3 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 4 0 0 0 6 0 0 0 4 0 0 0 4 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 21 14 5 5 3 9 23 27 84 80 29 31 27 18 30 37 0 Total 131 285 26 1 0 0 443 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes 1 , 0 Zion Nuclear Station Stability t Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Period of Record: July -Septembe Class -Moderately Stable -250 Winds Measured at 35 Feet Wind Speed (in mph)r 2005 Ft-33Ft Delta-T (F)1-3 4-7 3 2 1 0 0 0 1 1 1 21 23 15 17 15 18 9 0 0 0 1 0 0 0 0 3 9 14 16 4 7 8 7 2 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 3 2 2 0 0 0 1 4 10 35 39 19 2 4 23 25 11 0 Total 127 71 0 0 0 0 198 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 9 all stability classes:, Hours of missing stability measurements in 0 Stability (Wind Direction_________N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Zion Nuclear Station Period of Record: July -'lass -Extremely Stable Winds Measured at Wind Speed September 2005-250Ft-33Ft 35 Feet Delta-T (F)(in mph)1-3 4-7 0 0 0 0 0 0 0 1 6 8 15 22 26 7 1 0 0 0 0 0 0 0 0 1 1 1 1 12 28 2 0 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_ _ _ _ _ _ _ _ _ _ _ _Total 0 0 0 0 0 0 0 2 7 9 16 34 54 9 1 0 Total 86 46 0 0 0 0 132 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 9 all stability classes:, 0 Zion Nuclear Station Period of Record: July -September 2005 Stability Class -Extremely Unstable -250Ft-33Ft Winds Measured at 250 Feet Delta-T (F)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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0o 0 1 2 9 10 10 10 1 1 0 1 1 1 1 2 0 0 8-12 13-18 19-24 > 24 1 1 5 0 25 16 2 0 30 14 2 0 21 3 0 0 22 2 0 0 25 4 0 0 33 18 1 0 15 6 0 0 2 5 1 0 2 14 6 0 13 11 3 0 4 3 6 0 10 10 4 0 11 9 0 0 3 3 0 0 1 0 0 0 0 0 O 0 Total 7 44 48 33 34 39 62 22 9 22 28 14 25 21 8 1 0 Total 0 50 218 119 30 0 417 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 classesi 35 Zion Nuclear Station Period of Record: July -September 2005 Stability Class -Moderately Unstable -250Ft-33Ft Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 0 2 1 6 4 2 2 4 0 0 0 0 1 1 0 0 0 8-12 13-18 19-24 > 24 1 5 2 0 8 6 0 0 2 4 1 0 3 0 0 0 3 1 0 0 4 0 0 0 4 4 1 0 1 11 0 0 2 0 1 0 2 3 0 0 2 0 0 0 0 0 1 0 2 5 3 0 5 5 0 0 1 1 0 0 3 0 0 0 0 0 0 0 Total 8 16 8 9 8 6 11 16 3 5 2 1 11 11 2 3 0 Total 0 23 43 45 9 0 120 Hours of calm in this stability class: 0 Hours of missing Hours of missing wind measurements in this stability class: 9 stability measurements in all stability classes:, 35 Zion Nuclear Station Stability Period of Record: July -September 2005 Class -Slightly Unstable -250Ft-33Ft Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction_ _ _ _ _1-3_ _ _4-7 8-12 13-18 19-24_ _ _ _ _ ---------------> 24 Total_ -------_ _N 0 2 4 12 6 NNE NE ENE 0 0 0 6 19 3 3 1 1 2 1 0 8 0 24 0 27 1 16 0 3 2 7 E 0 ESE SE 0 0 3 0 4 3 1 3 2 6 14 0 0 7 1 1 7 2 0 26 SSE 1 3 8 16 1 0 29 S 0 2 3 SSW SW WSW W 0 0 4 0 2 0 1 0 1 1 0 5 1 5 6 2 4 0 0 9 1 0 1 1 1 7 0 10 0 4 0 11 WNW NW NNW Variable Total 0 1 0 1 0 2 6 2 2 0 4 7 1 0 0 11 2 1 13 0 0 5 0 0 0 0 0 0 1 32 70 78 27 5 213 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?, 35 Zion Nuclear Station Period of Record: July -September 2005 Class -Neutral -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total_ _ _ _ _ _ _ _ _ -----------------------------------N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 2 19 49 11 28 26 7 13 3 5 11 3 9 6 7 7 13 3 10 30 13 4 27 19 4 14 17 1 6 17 2 8 20 2 13 18 1 12 20 2 11 4 2 9 11 2 7 18 0 0 0 22 8 101 5 0 70 5 4 33 2 0 22 2 0 24 0 1 24 9 0 62 6 0 58 1 0 37 5 0 30 3 0 35 2 0 36 0 0 33 0 1 18 2 2 26 0 0 28 0 0 0 64 16 637 11 71 227 248 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 1 all stability classes:, 35 Stability Zion Nuclear Station Period of Record: July -September 2005 Class -Slightly Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 2 0 1 1 1 1 0 1 0 0 0 2 0 0 0 1 0 1 4 3 7 1 1 9 11 6 1 0 2 0 1 0 5 0 15 12 6 1 3 6 10 23 18 18 12 8 6 4 8 13 0 7 4 1 2 0 4 3 19 39 40 19 16 19 8 5 19 0 0 3 0 0 0 0 3 2 4 3 0 1 0 0 0 0 0 0 25 0 23 0 11 0 11 0 5 0 12 0 25 0 56 0 67 0 62 0 31 0 29 0 25 0 13 0 13 0 38 0 0 Total 10 52 163 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 205 16 0 446 0 stability class: l all stability classes:}35 Zion Nuclear Station Period of Record: July -September 2005 Class -Moderately Stable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 N 0 NNE 1 NE 0 ENE 1 E 0 ESE 2 SE 1 SSE 2 S 2 SSW 2 SW 0 WSW 0 W 1 WNW 0 NW 0 NNW 0 Variable 0 1 7 3 5 5 3 3 10 6 1 0 2 2 3 1 1 0 8-12 13-18 19-24 > 24 8 3 0 0 4 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 2 0 0 0 6 1 0 0 13 15 0 0 8 13 0 0 8 25 2 0 3 4 0 0 0 1 0 0 5 1 0 0 5 3 0 0 1 6 0 0 0 0 0 0 Total 1 2- --12 12 3 8 5 5 6 19 36 24 35 9 4 9 9 8 0 Total 12 53 64 73 2 0 204 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 1 all stability classesi, 35 Zion Nuclear Station Period of Record: July -September 2005 Stability Class -Extremely Stable -25OFt-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 6 12 0 0 0 19 NNE 1 8 4 2 0 0 15 NE 0 3 0 0 0 0 3 ENE 0 4 0 0 0 0 4 E 2 1 1 0 0 0 4 ESE 2 2 1 0 0 0 5 SE 2 0 1 0 0 0 3 SSE 0 3 0 0 0 0 3 S 1 4 2 2 0 0 9 SSW 0 5 3 3 0 0 11 SW 2 4 3 5 0 0 14 WSW 2 4 5 6 0 0 17 W 0 3 1 2 0 0 6 WNW 0 4 1 0 0 0 5 NW 0 2 0 1 0 0 3 NNW 1 1 8 2 0 0 12 Variable 0 0 0 0 0 0 0 Total 14 54 42 23 0 0 133 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 classesi 35 Zion Nuclear Station Period of Record: October -December2005 Stability Class -Extremely Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 Feet Wind Speed (in mph)Wind Direction_ _ _ _ _1-3_ _ _4-7 8-12_ -------_ _13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 1 15 0 4 21 0 10 15 0 8 7 0 8 0 0 2 2 0 13 4 0 8 3 0 3 4 1 2 20 0 8 15 0 9 40 0 9 41 0 7 25 0 2 7 0 1 7 0 0 0 1 95 226 11 2 0 0 0 0 0 0 0 2 12 5 7 2 3 0 0 4 4 0 0 27 0 0 27 0 0 25 1 0 16 0 0 8 0 0 4 0 0 17 0 0 11 0 0 7 0 0 25 0 0 35 6 0 60 2 0 59 0 0 34 0 0 12 0 0 8 0 0 0 9 0 375 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes!, Hours of missing stability measurements in 0 Zion Nuclear Station Period of Record: October -December2005 Stability Class -Moderately Unstable -250Ft-33Ft Delta-T (F)Winds Measured at 35 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 0 0 0 1 0 0 0 0 1 0 0 0 1 1 1 1 0 2 1 3 4 1 0 0 3 1 0 6 5 9 6.5 1 0 8-12 13-18 19-24 > 24 9 4 0 0 2 0 0 0 1 0 0 0 5 5 4 0 2 9 0 0 3 4 0 0 0 0 0 0 2 0 0 0 2 0 0 0 5 1 0 0 2 9 0 0 2 2 1 0 11 4 1 0 8 2 0 0 5 0 1 0 5 3 0 0 0 0 0 0 Total 15 3 4 19 12 7 0 5 4 6 17 10 26 17 12 10 0 Total 6 47 64 43 7 0 167 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classesi Hours of missing stability measurements in 0o Stability Zion Nuclear Station Period of Record: October Class -Slightly Unstable Winds Measured at Wind Speed-December2005

-250Ft-33Ft Delta-T (F)35 Feet (in mph)Wind Direction 1-3 4-7_________N NNE NE ENE , E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 2 0 0 0 0 0 0 2 0 2 3 2 2 3 0 0 4 9 3 4 4 4 7 9 7 10 9 15 9 16 14 15 0 8-12 13-18 19-24 > 24 15 7 0 0 8 1 0 0 6 0 0 0 12 2 1 0 2 5 0 0 6 0 0 0 0 3 0 0 5 13 7 0 5 0 0 0 7 2 0 0 14 14 0 0 31 7 5 0 28 12 0 0 13 3 0 0 17 13 1 0 47 5 0 0 0 0 0 0 Total 26 20 9 19 11 10 10 34 14 19 39 61 51 34 48 67 0 Total 16 139 216 87 14 0 472 Hours of calm in this stability class: 0 Hours of missing wind measurements in this sl Hours of missing stability measurements in a.Lability class: 0 11 stability classesi, 0 Stability Wind Direction Zion Nuclear Station Period of Record: October Class -Neutral Winds Measured at Wind Speed 1-3 4-7 8-12-December2005

-250Ft-33Ft Delta-T (F)35 Feet (in mph)13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 2 3 0 0 3 0 0 0 0 12 3 4 7 10 8 2 0 11 8 5 11 3 1 3 8 17 34 22 25 64 21 12 12 0 5 8 7 7 4 3 6 24 17 36 36 32 22 33 12 22 0 11 0 2 1 0 0 3 4 7 8 27 4 6 1 2 0 0 0 0 0 0 0 0 0 0 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 29 19 14 19 10 4 12 36 41 92 91 65 99 65 34 36 0 Total 54 257 274 76 4 1 666 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 classesi 0 Stability Wind Directior Zion Nuclear Station Period of Record: October -Decemb Class -Slightly Stable -250 Winds Measured at 35 Feet Wind Speed (in mph)er2005 Ft-33Ft Delta-T (F)n 1-3 4-7 N 1 NNE 0 NE 0 ENE 1 E 0 ESE 0 SE 1 SSE 3 S 6 SSW 10 SW 11 WSW 4 W 9 WNW 10 NW 3 NNW 0 Variable 0 3 9 1 2 1 0 2 6 2 4 36 14 24 34 23 28 7 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 6 0 0 0 5 2 0 0 7 0 0 0 4 0 0 0 3 0 0 0 8 0 0 0 1 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 Total 4 9 1 3 1 3 9 16 37 50 28 36 44 33 33 7 0 Total 59 214 38 3 0 0 314 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stal ility class: 0 stability classes., Hours of missing stability measurements in all 0 Zion Nuclear Station Period of Record: October -December2005 Stability Class -Moderately Stable -250Ft-33Ft Winds Measured at 35 Feet Wind Speed (in mph)Wind Delta-T (F)Direction 1-3 4-7 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 0 2 3 3 3 3 4 5 2 0 0 0 0 0 0 2 3 23 7 9 4 14 10 15 3 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_ _ _ _ _ _ _ _ _ _ _ _Total 0 0 0 0 0 0 2 5 25 10 12 7 17 14 20 5 0 Total 25 90 2 0 0 0 117 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 classesi, 0 Zion Nuclear Station Period of Record: October Stability Class -Extremely Stable Winds Measured at Wind Speed Wind-December2005

-250Ft-33Ft Delta-T (F)35 Feet (in mph)Direction 1-3 4-7 N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 1 WSW 4 W 5 WNW 2 NW 0 NNW 0 Variable 0 0 0 0 0 0 0 1 15 1 4 2 9 6 0 0 0 8-12 13-18 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0_ _ _ _ _ _ _ _ _ _ _ _Total 0 0 0 0 0 0 0 3 15 1 5 6 14 8 0 0 0 Total 12 38 2 0 0 0 52 0 Hours of calm in this stability class: 0 Hours of missing Hours of missing wind measurements in this stability class: stability measurements in all stability classes0 0 Zion Nuclear Station Period of Record: October -December2005 Class -Extremely Unstable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)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 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 2 0 1 6 5 1 0 7 2 1 0 1 0 0 8-12 13-18 19-24 > 24 Total 2 15 10 2 30 12 13 3 0 28 9 13 0 0 24 5 5 1 1 14 7 1 0 0 8 1 2 0 0 4 11 4 0 0 21 0 5 0 0 10 1 1 0 0 3 2 21 0 0 23 6 13 10 0 37 13 26 8 7 56 23 31 3 8 66 8 20 7 0 35 3 3 3 1 11 0 5 0 0 5 0 0 0 0 0 Total 1 29 103 178 45 19 375 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes: , Hours of missing stability measurements in 7 Zion Nuclear Station Period of Record: October -December2005 Class -Moderately Unstable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12_ -------_ _13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 1 o o 0 1 0 0 0 0 0 0 0 2 0 0 0 1 0 3 0 2 0 3 0 5 2 1 0 0 0 0 4 5 1 1 1 2 1 9 2 3 0 8 0 0 1 1 2 2 1 3 2 1 4 3 7 11 4 4 3 5 2 4 0 l0 6 0 0 0 1 0 4 5 5 2 0 0 0 0 0 0 1 0 1 0 9 1 3 1 0 5 3 2 0 1 3 0 0 0 15 3 4 20 12 8 0 4 5 6 16 13 26 18 12 9 0 Total 2 19 35 62 36 17 171 Hours of calm in this stability class: 0 Hours of missing wind measurements in this st-.at ility class: 0 stability classes?:I Hours of missing stability measurements in all 7 Zion Nuclear Station Period of Record: October -December2005 Stability Class -Slightly Unstable -250Ft-33Ft Winds Measured at 250 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3_ _ _4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 1 3 15 0 2 4 8 0 1 3 7 0 0 4 12 0 0 2 9 0 0 5 8 0 2 8 4 0 2 3 3 0 4 8 3 0 0 4 10 0 4 8 10 0 5 12 29 0 3 5 24 0 6 10 5 0 6 13 14 1 0 10 38 0 0 0 0 9 0 28 0 0 14 1 0 12 5 1 22 3 0 14 0 0 13 4 6 24 8 5 21 1 0 16 2 1 17 13 1 36 8 11 65 11 7 50 14 0 35 11 7 51 12 3 64 0 0 0 1 36 102 199 102 42 482 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classes:, Hours of missing stability measurements in 7 Zion Nuclear Station Period of Record: October -December2005 Stability Class -Neutral -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 3 7 7 13 0 31 NNE 0 2 4 6 4 0 16 NE 0 0 7 7 3 0 17 ENE 0 2 8 10 2 0 22 E 0 3 1 9 1 0 14 ESE 0 0 1 3 1 0 5 SE 0 0 1 6 10 4 21 SSE 0 0 4 9 14 1 28 S 0 2 10 25 3 7 47 SSW 1 3 11 42 14 5 76 SW 2 2 21 30 29 13 97 WSW 1 4 20 34 16 2 77 W 3 3 23 41 3 4 77 WNW 0 6 15 30 20 0 71 NW 2 4 11 24 0 2 43 NNW 0 3 5 24 8 0 40 Variable 0 0 0 0 0 0 0 Total 10 37 149 307 141 38 682 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1/Hours of missing stability measurements in all stability classes:, 7 Zion Nuclear Station Period of Record: October -December2005 Class -Slightly Stable -250Ft-33Ft Winds Measured at 250 Feet Stability Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 N 0 2 NNE 1 2 NE 0 0 ENE 1 1 E 0 1 ESE 0 0 SE 0 0 SSE 0 1 S 0 3 SSW 0 4 SW 0 1 WSW 0 0 W 0 1 WNW 1 2 NW 0 2 NNW 0 2 Variable 0 0 8-12 13-18 19-24 > 24 4____ 2-- -- 0---- 0--- -4 2 0 0 4 0 0 0 3 3 1 0 0 1 0 0 0 1 0 0 0 2 1 0 0 0 5 4 1 6 7 0 8 9 9 1 12 32 2 0 7 15 3 0 9 22 6 0 8 22 2 0 3 19 8 0 8 17 2 0 2 22 0 0 0 0 0 0 Total_____8 7 7 3 2 3 9 15 30 50 26 37 33 33 29 26 0 Total 3 22 69 173 46 5 318 Hours of calm in this stability class: Hours of missing Hours of missing wind measurements in this stability measurements in 0 stability class: 2 all stability classes, 7 7 Zion Nuclear Station Period of Record: October -December2005 Stability Class -Moderately Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 1 0 2 0 1 0 0 0 2 0 1 1 0 1 0 0 3 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 3 0 0 0 3 0 0 0 0 0 0 0 2 0 0 0 1 1 0 0 2 4 1 0 8 9 4 0 22 15 0 0 23 2 0 0 3 6 0 0 7 5 1 0 8 6 0 0 6 6 0 0 6 18 0 0 22 0 0 0 0 2 11 27 72 6 0 118 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 classesJ 7 Stability Wind Direction Zion Nuclear Station Period of Record: October -December2005 Class -Extremely Stable -250Ft-33Ft Delta-T (F)Winds Measured at 250 Feet Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 3 1 0 0 0 0 1 1 2 1 1 1 0 0 5 1 0 0 0 0 0 0 0 0 1 2 3 0 0 0 1 2 0 0 0 0 0 0 0 0 0 10 0 10 0 1 0 0 0 0 0 0 0 0 0 0 0 4 0 3 1 0 0 0 0 0_____0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 1 0 0 0 0 1 2 18 8 4 4 1 2 7 1 0 Total 2 17 9 16 8 0 52 Hours of calm in Hours of missing this stability class: wind measurements in this 0 stability class: 0 all stability classesi Hours of missing stability measurements in 7

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