RS-14-029, Annual Report on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2011

Annual Report on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2011

ML14030A293
Person / Time
Site:	Braidwood
Issue date:	12/31/2011
From:	Murray & Trettel
To:	Exelon Nuclear, Office of Nuclear Reactor Regulation
Shared Package
ML14030A308	List: ML14030A264 ML14030A266 ML14030A267 ML14030A268 ML14030A269 ML14030A273 ML14030A274 ML14030A275 ML14030A276 ML14030A278 ML14030A279 ML14030A280 ML14030A284 ML14030A285 ML14030A286 ML14030A287 ML14030A288 ML14030A289 ML14030A290 ML14030A291 ML14030A292 ML14030A293 ML14030A294 ML14030A295 RS-14-029, Annual Report on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2008 RS-14-029, Annual Report on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2009 RS-14-029, Annual Report on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2011 RS-14-029, Annual Report on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2012 RS-14-029, Braidwood Station Kankakee River Fish Monitoring Program, 1991-2013 - Tables Requested by the NRC to Describe the Number of Fish Caught by Sampling Gear and Species at Each Monitoring Location RS-14-029, Braidwood Station Kankakee River Fish Monitoring Program, 2010 RS-14-029, Braidwood Station, 2011 Benthos Monitoring and Historical Fish and Benthos Comparisons RS-14-029, Braidwood Station, Kankakee River Fish Monitoring Program, 2012 RS-14-029, Employment and Land Requirements for Alternatives to Byron Units 1 and 2 and Braidwood Units 1 and 2 - Lr Chapter 7 Energy Alternatives RS-14-029, Final Report: Characterization of Unionid Communities Near the Braidwood Nuclear Station Kankakee River Discharge Location RS-14-029, Final Report: Unionid Relocation Near the Braidwood Nuclear Station Kankakee River Discharge Location RS-14-029, Investigations to Determine Presence of State-Listed Species of Fish and Freshwater Mussels in the Kankakee River Near the Braidwood Nuclear Station Warmwater Discharge Channel RS-14-029, Monthly Report on the Meteorological Monitoring Program at the Braidwood Nuclear Generating Station RS-14-029, Plan Completion Report for the VB 1 Area RS-14-029, Plan Completion Report for the VB 2/3 and Pond Area RS-14-029, Plan Completion Report for the VB 4 Area RS-14-029, Plan Completion Report for the VB 6 Area RS-14-029, Plan Completion Report for the VB 7 Area RS-14-029, Standard Operating Procedures for Braidwood Station'S Fisheries Monitoring Program in the Kankakee River and Horse Creek RS-14-029, Status of Fish Communities and Sport Fishery in the Kankakee River and Tributary Streams: 2005 Basin Survey RS-14-029, Transmittal of Annual Report on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2010 RS-14-029, Transmittal of Application for an Incidental Take Permit for Threatened or Endangered Species and Conservation Plan
References
RS-14-029
Download: ML14030A293 (50)

Text

Annual Report.on the Meteorological Monitoring Program at the Braidwood Nuclear Power Station 2011 prepared for Exelon Nuclear Warrenville, IL 60555 by Murray and Trettel, Incorporated 600 First Bank Drive, Suite A Palatine, IL 60067 (847) 963-9000 e-mail: mt@weathercommand.com For Exelon Us Reviewed By: Date : -..-Murray & Trettel, Inc. 60o first Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo Table of Contents Section Description Page List of Tables ...........................................................................................

ii 1 Introduction

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

1 2 Sum mary ............................................................................................

2 3 Data Acquisition

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

3 4 Data Analysis ....................................................................................

5 5 Results ..............................................................................................

10 Site Calibration logs ...................................................................

Appendix Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9000 List of Tables Number Description Page 1 Instrument Locations

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

4 2 Data Loggers .....................................................................................

4 3 Wind Direction Classes ....................................................................

7 4 Wind Speed Classes .........................................................................

7 5 Atmospheric Stability Classes ..........................................................

8 6 Data Recovery Summary .................................................................

11 7 W ind Rose, January-March 2011 ..................................................

14 8 W ind Rose, April-June 2011 ............................................................

16 9 W ind Rose, July-September 2011 ..................................................

18 10 W ind Rose, October-December 2011 .............................................

20 11 W ind Rose, January-December 2011 ............................................

22 12 Precipitation Totals .........................................................................

24 13 Maximum Doses Resulting From Airborne Releases .....................

25 Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo Introduction The purpose of the meteorological program being conducted at the Braidwood Station site is to provide information sufficient to assess the local weather conditions and to determine the degree of atmospheric dispersion of airborne radioactive effluent from the station.The meteorological tower is 320 ft. high and is instrumented at two levels. Wind speed and direction are measured at 34 ft. and 203 ft. Ambient temperature is measured at 30 ft. Differential temperature, referenced to 30 ft., is measured at 199 ft. Dew point temperature is measured at 30 ft. Precipitation is measured at approximately 3 ft.Joint frequency stability wind rose tables of wind direction, wind speed, and stability are routinely tabulated from hourly measurements.

The quarterly and annual tables are included in this report.Descriptions of the instruments and data loggers are given in Section 3 (Data Acquisition) of this report. Data reduction and processing are described in Section 4 (Data Analysis).

The results given in Section 5 of this report include modeled maximum whole body doses, skin doses, organ doses based upon airborne releases, and site meteorology.

Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo 2. Summary The Braidwood Station meteorological monitoring program produced 52,441 hours0.0051 days <br />0.123 hours <br />7.291667e-4 weeks <br />1.678005e-4 months <br /> of valid data out of a possible 52,560 parameter hours during 2011 (365 days x 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s/day x 6 measured priority parameters), which represents an overall data recovery rate of 99.8%. Priority parameters are all parameters except dew point temperature and precipitation.

The stability wind rose tables included in this report have been generated using the 34 ft.wind data with the 199-30 ft. differential temperature data.The maximum annual calculated cumulative doses resulting from airborne releases were as follows.Unit 1: gamma air dose beta air dose whole body dose skin dose organ (child-bone) 1.300 x 10.3.090 x 10" 5 3.384 x 10"'2.210 x 10 5 1.112 x 10+0 Unit 2: mrad mrad mrem mrem mrem mrad mrad mrem mrem mrem gamma air dose beta air dose whole body dose skin dose organ (child-bone)

-1.650 x10"-4.150 x10-5-4.508 x 10-'-2.800 X10-5-1.258 X 10"0 Murray & Trettel, Inc. 6oo First Bank Driue, Suite A Palatine, Illinois 60067 (847) 963-9ooo 3. Data Acquisition Wind speed and direction are measured with MRI model 1022 wind sensors. The wind speed sensors have a starting speed of 0.5 mph (0.22 mps), a range of 0 to 100 mph (0 to 44.7 mps), and a system accuracy of +/-1.25 mph at 100 mph (+/-0.56 mps at 44,7 mps). The wind direction sensors have a threshold speed of 0.75 mph (0.33 mps), a range of 0 to 5400, and a system accuracy of +/-50.Ambient and differential temperature are measured with MRI model 1596602 sensors.Ambient temperature is measured within the range of -22 to 122 0 F (-30 to 50 0 C) with an accuracy of +/-0.5 0 F (+/-0.3°C).

Differential temperature is measured within the range of-10 to 10°F (-5.6 to 5.6 0 C) with an accuracy of +/-0.18°F (+/-0.10°C).

Dew point temperature is measured with an MRI model 1993900000 dew point sensor and the range of measurement is -22 to 122 0 F (-30 to 50 0 C) with an accuracy of +/-2.7 0 F (+/-1.5 0 C).Precipitation is measured with a Climatronics 100097-1 tipping bucket rain gauge and is measured in increments of one one-hundredth of an inch with a system accuracy of+/-0.01" (+/-0.25mm).

Instrument types and locations are summarized in Table 1.The meteorological data are collected and stored by a Microtel 4.0 data acquisition system. The Microtel measures the analog voltages of the instruments and records the digital equivalent within the range of 0 to +5 volts. The Microtel has the capability of storing 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of minute data and one week of hourly data. Data are obtained from the Microtel by a direct dial telephone hookup to an in-house computer system. Data are sampled every second.As a backup to the Microtel, data are also recorded with a Johnson Yokogawa Corp. digital recorder (JYC DA100 data acquisition unit and Contec IPC-PT/M300(PC)WOU PC). Data are sampled every 10 seconds.Data loggers are summarized in Table 2.Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo Table I Instrument Locations Measurement Wind Speed Wind Direction Differential Temperature Wind Speed Wind Direction Ambient Temperature Dew Point Temperature Precipitation Sensor Type MRI 1022-S MRI 1022-D MRI 1596602 MRI 1022-S MRI 1022-D MRI 1596602 MRI 1993900000 Climatronics 100097-1 Location Tower Tower Tower Tower Tower Tower Tower Ground Elevation 203 ft.203 ft.199 ft.34 ft.34 ft.30 ft.30 ft.3 ft.Table 2 Data Lowcers Sampling Measurement Logger TvDe Frequency Winds, Temperatures, Microtel 4.0 data acquisition system I sec.and Precipitation Winds, Temperatures, Johnson Yokogawa Corp. Digital Recorder 10 sec.and Precipitation (JYC DA100 and Contec IPC-PT/M300(PC)WOU) digital recorder ci H I Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9000 4. Data Analysis The Braidwood Microtel is routinely interrogated to obtain hourly average data. The data are then stored in the meteorological data base and listings of the data are generated.

The data listings are examined by qualified personnel and any apparent problems are brought to the attention of the Project Manager or Meteorological Technician and the Instrument Maintenance staff.Hourly values of wind speed, wind direction, ambient temperature, differential temperature, dew point temperature, and precipitation are obtained through measurements taken at the site. The standard deviation of wind direction (sigma) is derived. The wind direction variation is described in terms of the standard deviation of the direction about the mean direction.

The Microtel computes an hourly value of wind sigma by taking the Root-Mean-Square (RMS) of the four quarter-hour wind sigma values. The quarter-hour wind sigma values are calculated directly from the one second wind direction samples during the 15 minute period.The data base files are edited approximately once a week. Missing Microtel values are replaced with digital recorder values, when available.

Invalid data are deleted from the data base.When an hourly value is missing or invalid, the numeral 999 is entered into the computer data file in the appropriate location.

When the wind direction changes substantially relative to its short term fluctuations, the numeral 888 can be entered into the wind sigma location to indicate shifting winds. When the wind blows with velocities near the sensing threshold of the instrument, the numeral 777 can be entered into the wind direction, wind speed, and wind sigma locations to indicate light and variable winds.Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-90oo A professional meteorologist reviews the data, calibration findings, equipment]maintenance reports, and other information and determines which data are valid. Only the valid data are retained in the data base.As a quality control measure, a monthly comparison is made of Microtel and digital 3recorder data. An investigation is made into the reasons for any significant differences between the sets of values.Joint frequency stability wind rose tables of hourly data measured at the site are 3generated.

These tables indicate the prevailing wind direction, wind speed, and stability classes measured during the period of observation as well as the joint frequencies ofoccurrence of the wind direction, wind speed, and stability classes. The values are also used as input to the atmospheric transport and diffusion models. Wind direction, wind j speed, and stability classes are given in Tables 3, 4, and 5.Ml I I Murray-& Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9000 Table 3 Wind Direction Classes IF IF IF IF IF IF IF IF IF IF IF IF IF IF IF IF 348.750 < WD <11.250 < WD <33.750 < WD <56.250 < WD <78.750 < WD <101.250 < WD <123.750 < WD <146.250 < WD <168.750 < WD <191.250 < WD <213.750 < WD <236.250 < WD <258.750 < WD <281.250 < WD <303.750 < WD <326.250 < WD <11.250 THEN Class is 33.750 THEN Class is 56.250 THEN Class is 78.750 THEN Class is 101.250 THEN Class is 123.750 THEN Class is 146.250 THEN Class is 168.750 THEN Class is 191.250 THEN Class is 213.750 THEN Class is 236.250 THEN Class is 258.750 THEN Class is 281.250 THEN Class is 303.750 THEN Class is 326.250 THEN Class is 348.750 THEN Class is N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Table 4 Wind Speed Classes IF 0.0mph < WS _< 0.7mph THEN Classis IF 0.7 mph < WS < 3.5 mph THEN Class is IF 3.5 mph < WS < 7.5 mph THEN Class is IF 7.5 mph < WS < 12.5 mph THEN Class is IF 12.5 mph < WS < 18.5 mph THEN Class is IF 18.5 mph < WS < 24.5 mph THEN Class is IF 24.5 mph < WS THEN Class is M U I I I Murray &Trettel, Inc. 600oFirst Bank Drive, Suite A Palatine, Illinois 600, 1 2 3 4 5 6 7 67 (847) 963-9000 Table 5 Atmospheric Stability Classes Differential Temperature Interval (in 0C/lO00m)

(')Differential Temperature Interval (in OF over the 199-30 ft. interval)

(2)Class Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable AT-1.9 < AT-1.7 < AT-1.5 < AT-0.5 < AT 1.5 < AT 4.0 < AT-1.9-1.7-1.5-0.5 1.5 4.0-1.8-1.6-1.4-0.5 1.3 3.7 AT < -1.8< AT < -1.6< AT < -1.4< AT < -0.5< AT < 1.3< AT < 3.7< AT 0 0 U II from ANSIIANS 2.5 ()from ANSIIANS 2.5 12) ANSIIANS 2.5 intervals scaled for instrument heights on the Braidwood meteorological tower Murray & Trettel, Inc. 6oo First Bank Driue, Suite A Palatine, Illinois 60067 (847)963-9000 I The following two programs were used to calculate doses resulting from radioactive releases: 1. XOQDOQ: Computer Program for the Meteorological Evaluation of Routine Effluent Releases at Nuclear Power Stations (NUREG/CR-2919).

The program is based on the theory that material released to the atmosphere will be normally distributed (Gaussian) about the plume centerline.

A straight-line trajectory is assumed between the point of release and all receptors.

The program implements the assumptions outlined in Section C of NRC Regulatory Guide 1.111. In evaluating routine releases from nuclear power plants, it primarily is designed to calculate annual relative effluent concentrations, X/Q values and annual average relative deposition, DIQ values.Output from the XOQDOQ program is used as input to the GASPAR program.2. GASPAR II: A Code System for Evaluation of Radiological Impacts Due to the Release of Radioactive Material to the Atmosphere During Normal Operation of Light Water Reactors (NUREG-0597).

GASPAR is a program written for the evaluation of radiological impacts due to the release of radioactive material to the atmosphere during normal operation of reactors.

The GASPAR code implements the radiological impact models of NRC Regulatory Guide 1.109, Revision 1, for atmospheric releases.

The program is used to estimate the maximum individual doses at selected locations in the vicinity of the plant.Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9000 5. Results 5.1 Instrument Maintenance The maintenance program followed during 2011 was composed of routinely scheduled visits and non-routine equipment repairs. Routine site visits were made to inspect the sensing and recording systems for proper operation.

In addition, routine maintenance and calibration checks of all tower-mounted and ground level equipment were performed every four months. A description of the calibration and field procedures is found in the Murray and Trettel, Inc. "P1009 Procedures Manual" (July 2010).In January, the heater in the rain gauge was replaced due to improper operation.

In March, the 34 ft. wind direction was replaced due to bad readings.In April, the circuit breaker for the 203 ft. aspirator motor tripped. The breaker was reset to restore proper delta-T readings.In May, the annual tower inspection was performed.

During May, the digital recorder was unreachable by modem on two different occasions.

The modem and unit were rebooted to restore communication.

Also during May, the uninterruptible power supply failed. An attempt to install a new UPS wasn't completed due to the new UPS being found faulty from the factory. A new UPS would be installed at a later date.In June, a new UPS was installed.

Also in June, fuses were blown on the 34 ft. wind direction and delta-T lines that lead to the control room. The fuses were replaced.In July, questionable temperature readings were inspected.

A wasp's nest was removed from the 30 ft. aspirator assembly.

The 30 ft. and 199 ft. assemblies were also cleaned to restore proper indications.

In August, signals were lost from the met tower to the control room. Blown fuses were found and replaced.

Y4002 was not able to be repaired at the tower. The problem was inside of the plant. It was repaired on September 1 5 Ih.In November, the 34 ft. wind direction sensor was replaced due to bad readings.In December, the thermostat in the rain gauge heater failed. The heater was replaced to restore operation.

Also in December, the precipitation signal conditioning card was reseated due to incorrect values of precipitation being recorded.No other significant problems were encountered with the equipment, and at the end of the year, no problems were evident at the site.Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9000 I 5.2 Data Recovery The record of data recovery for the year is summarized in Table 6.Table 6 Braidwood Data Recovery Summary 2011 Measurement Wind Speed Wind Speed Wind Direction Wind Direction Ambient Temperature Differential Temperature Dew Point Temperature Precipitation Elevation 34 ft.203 ft.34 ft.203 ft.30 ft.199-30 ft.30 ft.3 ft.Recovered Hours 8750 8750 8720 8750 8749 8722 8749 8696 Recovered Percent 99.9 99.9 99.5 99.9 99.9 99.6 99.9 99.3 Lost Hours 10 10 40 10 11 38 11 64 Percent Chanaed 1.3 0.1 2.8 0.5 0.1 0.4 14.8 1.2 AVERAGE*99.8 average of priority parameters (all except dew point temperature and precipitation)

Valid Hours Lower Level Joint Frequency

% 8691 Upper Level Joint Frequency

% 8721 Recovered Percent 99.2 99.6 Lost Hours 69 39 Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9000 5.3 Summary of Billings for Equipment Repairs, Replacement P and Other Work not Included in Fixed-Cost Maintenance Agreement

-2011 Description

-Braidwood Cost January Meteorological equipment maintenance 60.00 Meteorological System Storage 100.00 Febuary Meteorological System Storage 100.00 March Meteorological equipment maintenance 605.35 Meteorological System Storage 100.00 Meteorological equipment maintenance 1,753.45 Meteorological parts, materials, and contractor services 275.00 Meteorological System Storage 100.00 May Meteorological equipment maintenance 634.75 Meteorological parts, materials, and contractor services 107.42 Meteorological System Storage 100.00 June Meteorological equipment maintenance 514.75 Meteorological parts, materials, and contractor services 1,203.93 Meteorological System Storage 100.00 July Meteorological equipment maintenance 1,613.75 Meteorological System Storage 100.00 Special Request 120.00 Meteorological equipment maintenance 664.75 Meteorological System Storage 100.00 September Meteorological equipment maintenance 394.75 Meteorological parts, materials, and contractor services 196.36 Special Request 85.00 October Meteorological parts, materials, and contractor services 491.69 Meteorological System Storage 100.00 November Meteorological equipment maintenance 965.00 Meteorological parts, materials, and contractor services 582.90 Meteorological System Storage 100.00 December Meteorological equipment maintenance 863.90 Meteorological parts, materials, and contractor services 541.71 Meteorological System Storage 100.00 Annual Total: $12,774.46 Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9000 5.4 Stability Wind Rose Data The quarterly and annual stability wind roses are given in Tables 7 through 11. Wind speed classes have been altered to reflect the wind sensor threshold.

For the year, winds measured at 34 ft. most frequently came from the West (8.62%) and fell into the 3.6-7.5 mph wind speed class (41.97%).

Calms (wind speeds at or below the sensor threshold) were measured 0.09% of the time and speeds greater than 24.5 mph were measured 0.10% of the time.Stability based on the 199-30 ft. differential temperature most frequently fell into the neutral classification (40.40%).Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9000 0 TABLE 7-14-8raidwood Generating Station 34 ft. Wind Speed and Direction January-March, 2011 199Ft-30Ft Delta-T (F)Nunmer of Observations

-2138 Values are Percent Occurrence SPEED ----------------------------------

WIND DIRECTION CLASSES ..................................

[ICLASS N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL---------

STABILITY CLASSES ..........

EU MU SU N SS MS ES TOTAL EU MU C SU A N M MS ES EU I SU/N 3 SS ES UEU MU 4 SU 7 SS'8 SU-N$2HS ES EU 6;8SU-N 1 S5 MS 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.00 0.00 0.05 0.05 0.65 0.28 0.00 0.00 0.00 0. 09 0.05 2.62 0.00 0.00 0.00 0.05 0.00 0.00 0.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.23 0.05 0.05 0.09 0.14 0.28 0.61 0.51 0.00 0.00 0.09 0.00 0.05 1.22 0.05 0.00 0.00 0.00 0.00 0.00 0.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.51 0.14 0.00 0.28 0.05 0.23 2.15 1.03 0.00 0.00 0.47 0.23 0.19 2.10 0.05 0.00 0.00 0.00 0.00 0.00 0.05 0.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.37 0. 84 0.23 0.00 0.51 0.14 0.28 3.04 1.64 0.00 0.00 0.19 0.14 0.09 1.08 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.23 1.03 0.23 0.00 0.33 0.23 0.09 1.50 0.47 0.00 0.00 0.09 0.05 0.00 0.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0. D0 0.05 0.23 0.19 0.00 0.00 0.09 0.09 0.56 0.47 0.05 0.00 0.14 0.00 0.00 0.42 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.05 0.00 0.00 0.00 0.00 0.89 0.94 0.00 0.00 0.05 0.09 0.14 1.54 0.47 0.00 0.00 0.09 0.00 0.00 0.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.100 0.00 0.00 0.00 0.00 1.36 0.61 0.00 0.00 0.00 0.05 0.19 1.26 0.23 0.00 0.00 0.00 0.00 0.14 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.37 0.19 0.00 0.00 0.00 0.05 0.00 2.01 1.03 0.00 0.00 0.00 0.14 0.09 0.33 0.80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.00 0.05 0.00 0.56 0.28 0.00 0.00 0.14 0.05 0.19 1.50 0.98 0.00 0.00 0.14 0.05 0.14 0.70 0.61 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.14 0.00 0.00 0.00 0.19 1.22 0.94 0.05 0.00 0.00 0.09 0.23 2.57 2.20 0.00 0.00 0.00 0.05 0.05 0.42 0.47 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.19 0.00 0.00 0.00 0.00 0.28 1.64 1.17 0.56 0.00 0.19 0.23 0.28 0.75 0.33 0.00 0.00 0.05 0.05 0.09 0.28 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.33 0.51 0.33 0.00 0.09 0.09 0.37 1.45 1.03 0.94 0.00 0.19 0.05 0.28 0.80 0.56 0.00 0.00 0.28 0.09 0.09 0.37 0.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.51 0.84 0.42 0.09 0.33 0.14 0.19 2.95 2.01 0.14 0.00 0.56 0.05 0.19 1.82 0.56 0.00 0.00 0.14 0.00 0.05 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.42 0.84 0.33 0.05 0.37 0.33 0.19 1.50 1.08 0.00 0.00 0.61 0.33 0.09 1.12 0.28 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.37 0.14 0.00 0.00 0.23 0.23 1.22 0.89 0.05 0.00 0.19 0.09 0.09 1.59 0.05 0.00 0.00 0.14 0.05 0.09 0.37 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.57 5.89 2.29 0.19 2.01 2.01 1.54 2.48 21.66 13.52 1.78 0.00 2.90 2.90 1.59 2.06 22.78 7.20 0.00 0.00 0.89 0.89 0.42 0.75 3.79 2.81 0.00 0.00 0.00 0.05 0.09 0.00 0.00 0.00 0.14 0.00 0.00 2.57 5.89 2.29 0.19 10.94 1.54 2.48 21.66 13.52 1.78 0.00 42.98 1.59 2.06 22.78 7.20 0.00 0.00 36.53 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00' 0.00 0.42 0.75 3.79 2.81 0.00 0.00 8.65 Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9ooo ITABLE 7 continued-15-Braidwood Generating Station 34 ft. Wind Speed and Direction January-March.

201 199Ft-3OFt Delta-T (F)SPEED ..................................

WIND DIRECTION CLASSES ----------------------------------

CLASS N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL---------

STABILITY CLASSES ----------

EU MU SU N SS MS ES TOTAL EU I MU 9 SU 2SS 4MS ES EU T SU N MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00.0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.05 0.05 0.09 0.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.09 0.37 0.00 0.00 0.61 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TOT 4.35 3.84 8.14 8.70 4.63 2.57 4.68 4.12 5.00 5.66 8.70 6.41 8.23 11.13 7.58 5.99 99.86 5.85 3.60 5.38 50.98 29.79 4.07 0.19 99.86 Wind Direction by Stability N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.05 0.14 0.09 3.65 0.42 0.00 0.00 0.19 0.14 0.33 2.25 0.84 0.05 0.05 0.75 0.28 0.42 4.40 2.15 0.14 0.00 0.70 0.28 0.37 4.49 2.62 0.23 0.00 0.42 0.28 0.09 2.10 1.50 0.23 0.00 0.14 0.09 0.09 1.03 0.98 0.23 0.00 0.14 0.09 0.14 2.81 1 .45 0.05 0.00 0.00 0.05 0.33 2.85 0.89 0.00 0.00 0.00 0.19 0.09 2.71 2.01 0.00 0.00 0.28 0.19 0.37 2.76 2.01 0.05 0.00 0.00 0.14 0.47 4.30 3.60 0.19 0.00 0.28 0.28 0.65 2.81 1.82 0.56 0.00 0.56 0.23 0.75 2.99 2.43 1.26 0.00 1.03 0.19 0.42 5.29 3.55 0.56 0.09 0.98 0.65 0.28 3.09 2.20 0.33 0.05 0.33 0.37 0.42 3.37 1.31 0.19 0.00 5.85 3.60 5.38 50.98 29.79 4.07 0.19-STABILITY CLASSES-Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.00 0.14 1.03 2.76 0.42 0.00 0.00 0.00 0.42 1.64 1.40 0.33 0.05 0.00 0.00 0.75 3.74 3.04 0.37 0.23 0.00 0.00 1.45 5.61 1.64 0.00 0.00 0.00 0.00 1.50 2.62 0.51 0.00 0.00 0.00 0.00 0.47 1.26 0.84 0.00 0.00 0.00 0.00 0.14 1.82 2.29 0.42 0.00 0.00 0.00 0.09 1.96 1.73 0.33 0.00 0.00 0.00 0.00 0.56 3.09 1.36 0.00 0.00 0.00 0.09 0.89 2.85 1.64 0.19 0.00 0.00 0.19 2.39 5.10 0.98 0.05 0.00 0.00 0.33 3.65 1.78 0.61 0.05 0.00 0.00 1.17 3.98 1.87 1.17 0.05 0.00 0.00 1.87 5.75 3.18 0.33 0.00 0.00 0.00 1.64 3.46 2.43 0.05 0.00 0.00 0.00 0.70 2.62 2.01 0.65 0.00 0.00 0.14 10.94 42.98 36.53 8.65 0.61 0.00-WIND SPEED CLASSES-CALM< 3.5 mph 3.6 -7.5 mph 7.6 -12.5 mph 12.6 -18.5 mph 18.6 -24.5 mph> 24.5 mph Murray & Trettel, Inc. 6oo First Bank Driue, Suite A Palatine, Illinois 60067 (847) 963-9ooo

[ITABLE 8-16-Braidwood Generating Station 34 ft. Wind Speed and Direction April-June.

2011 199FL-3OFt Delta-T (F)Number of Observations

-2150 Values are Percent Occurrence SPEED ----------------------------------

CLASS N NNE NE ENE E ESE WIND DIRECTION CLASSES ........................

........SE SSE S SSW SW WSW W WNW NW NNW TOTAL.........

STABILITY CLASSES ----------

EU MU SU N SS MS ES TOTAL 00 0.00 EU MU C SU LSS M M ES EU 1 SU-N 3 SS MS ES EU 4 SU-N 7 SS MS ES 8 SU 1 SS 2 MS ES EU E U 5U-N 8 MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.28 0.05 0.05 0.09 0.09 0.05 0.51 0.51 0.05 0.00 0.05 0.09 0.00 0.19 0.14 0.05 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.14 0.14 0.14 0.00 0.23 0.05 0.05 0.98 1.12 0.05 0.00 0.51 0.19 0.09 3.16 0.28 0.00 0.00 0.19 0.00 0.09 0.98 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.23 0.42 0.28 0.28 0.33 0.14 0.23 2.14 0.56 0.05 0.14 0.93 0.14 0.05 2.23 0.28 0.00 0.00 0.05 0.14 0.09 0.47 0.09 0.00 0.00 0.00 0.00 0.00 0.00 O. O0 0.00 0.00 0.00 0.00 0.00 0.37 0.84 0.19 0.51 0.60 0.19 0.23 2.37 1.12 0.00 0.00 0.05 0.05 0.14 1.16 0.47 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.23 1.26 0.56 0.09 0.60 0.14 0.23 0.88 0.65 0.00 0.00 0.00 0.00 0.00 0.70 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.09 0.56 0.37 0.19 0.56 0.09 0.14 1.21*1.49 0.14 0.00 0.14 0.00 0.09 0.56 0.47 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 o.0o 0.00 0.00 0.00 0.00 0.05 0.09 0.28 0.14 0.23 0.14 0.74 0.19 0.09 1.07 1.B1 0.05 0.00 0.14 0.14 0.00 1.07 0.88 0.00 0,00 0.19 0.05 0.05 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.14 0.51 0. 19 0.05 0.28 0.09 0.09 1.16 1.30 0.14 0.05 0.05 0.28 0.19 0.79 0.33 0.00 0.00 0.05 0.00 0.00 0.09 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.14 0.05 0.05 0.51 0.19 0.23 0.84 1.07 0.14 0.00 0.19 0.09 0.33 1.12 1.53 0.00 0.00 0.09 0.05 0.09 0.56 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.05 0.05 0.14 0.00 0.09 0.09 0.00 0.14 0.37 0.00 0.00 0.33 0.19 0.09 1.07 0.74 0.00 0.00 0.37 0.14 0.14 0.79 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00.0.05 0.05 0.00 0.00 0.09 0.05 0.05 0.33 0.70 0.05 0.00 0.51 0.05 0.05 2.14 0.98 0.00 0.00 0.33 0.14 0.33 0.93 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.23 0.23 0.09 0.19 0.05 0.05 0.33 1.12 0.19 0.00 0.19 0.09 0.23 1.26 0.56 0.00 0.00 0.14 0.19 0.00 0.00 0,14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.00 0.51 0.56 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.23 0.42 0.05 0.14 0.33 0.60 0.14 0.05 0.05 -0.14 1.07 0.84 0.65 0.60 0.56 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.37 0.05 0.14 0.37 0.05 0.19 0.51 0.19 0,00 0.00 0.56 0.00 0.05 0.79 0.14 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.09 0.05 0.23 0.14 0.05 0.28 0.19 0.05 0.56 0.19 0.00 0.00 0.19 0.09 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.23 0.23 0.42 0.33 2.19 6.14 3.21 2.00 5.91 5.91 1.77 1.86 14.93 13.44 1.44 0.19 5.53 5.53 1.63 1.63 18.60 7.58 0.14 0.00 1.95 1.95 0.74 0.98 4.98 0.74 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.09 0.42 0.33 2.19 6.14 3.21 2.00 14.51 0.00 0.0.00 1.77 1.86 14.93 13.44 1.44 0.19 39.53 0.88 0.23 0.14 1.53 0.23 0.00 0.00 0.47 0.05 0.19 0.33 0.00 0.00 0.00 0.84 0.00 0.19 0.70 0.33 0.00 0.00 0.05 0.00 0.00 0.51 0.00 0.00 0.00 1.63 1.63 18.60 7.58 0.14 0.00 35.12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.74 0.98 4.98 0.74 0.00 0.00 9.40 Murray & Trettel, Inc. 60o First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9ooo p TABLE 8 continued-17-Braidwood Generating Station 34 ft. Wind Speed and Direction April-June.

2011 199Ft-30Ft Delta-T (F)SPEED ..................................

WIND DIRECTION CLASSES ----------------------------------

CLASS N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL---------

STABILITY CLASSES ..........

EU MU SU N SS MS ES TOTAL EU 1 MU 9 SU SI EU N E2S ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 O.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.O0 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.37 0.23 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.00 0.00 0.00 0.05 0.09 0.05 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.14 0.09 0.51 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.00 0.00 0.14 0.09 0.51 0.28 0.00 0.00 1.07 0.00 0.00 0.05 0.14 0.00 0.00 0.19 TOT 2.33 8.51 9.35 8.37 5.58 6.19 7.63 5.95 7.77 5.86 7.16 5.30 8.23 5.77 3.53 2.28 99.91 13.67 4.70 4.88 41.26 28.37 4.84 2.19 99.91 Wind Direction by Stability N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.14 0.19 0.05 0.84 0.93 0.14 0.05 0.93 0.28 0.33 5.26 1.53 0.19 0.00 1.30 0.51 0.37 5.07 1.35 0.33 0.42 0.65 0.23 0.37 3.91 2.42 0.28 0.51 0.60 0.14 0.23 1.81 2.14 0.56 0.09 0.74 0.09 0.23 1.91 2.51 0.51 0.19 1.07 0.42 0.23 2.65 2.84 0.28 0.14 0.37 0.47 0.28 2.19 2.23 0.33 0.09 0.79 0.33 0.70 2.74 2.98 0.19 0.05 0.88 0.47 0.23 2.47 1.67 0.14 0.00 0.98 0.33 0.51 3.49 1.81 0.05 0.00 0.51 0.37 0.28 1.58 2.05 0.42 0.09 1.72 0.47 0.37 2.93 1.40 1.12 0.23 1.49 0.09 0.33 2.28 1.35 0.09 0.14 0.98 0.05 0.23 1.40 0.70 0.05 0.14 0.51 0.28 0.14 0.74 0.42 0.14 0.05 13.67 4.70 4.88 41.26 28.37 4.84 2.19-STABILITY CLASSES-Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.00 0.47 1.30 0.51 0.05 0.00 0.00 0.00 0.56 2.47 4.23 1.26 0.00 0.00 0.00 1.30 3.58 3.63 0.84 0.00 0.00 0.00 1.91 4.51 1.95 0.00 0.00 0.00 0.00 2.14 2.51 0.93 0.00 0.00 0.00 0.00 1.26 3.63 1.26 0.05 0.00 0.00 0.00 0.93 3.95 2.23 0.51 0.00 0.00 0.00 0.93 3.12 1.63 0.23 0.05 0.00 0.00 0.42 2.98 3.26 1.02 0.09 0.00 0.00 0.28 0.70 2.42 1.58 0.70 0.19 0.00 0.19 1.26 3.72 1.77 0.23 0.00 0.00 0.60 1.91 2.33 0.47 0.00 0.00 0.00 1.40 2.79 3.02 1.02 0.00 0.00 0.00 0.88 2.28 2.05 0.56 0.00 0.00 0.00 0.65 1.30 1.53 0.05 0.00 0.00 0.00 0.60 1.26 0.42 0.00 0.00 0.00 0.09 14.51 39.53 35.12 9.40 1.07 0.19-WIND SPEED CLASSES-CALM-3.5 mph 3.6 -7.5 mph 7.6 -12.5 mph 12.6 -18.5 mph 18.6 -24.5 mph> 24.5 mph Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9ooo

[ TABLE 9-18-Braidwood Generating Station 34 ft. Wind Speed and Direction July-Septeffber.

2011 199Ft-30Flt Deita-T (F)Number of Observations

-2137 Values are Percent Occurrence SPEED ..................................

CLASS N NNE NE ENE E ESE WIND DIRECTION CLASSES ----------------------------------

SE SSE S SSW SW WSW W WNW NW NNW TOTAL---------

STABILITY CLASSES ----------

EU MU SU N 5S MS ES TOTAL Q EU MU C SU LSS MMS ES EU 01 SU.N 3 SS MS ES DEU MU 7 55 EsS 1 SS 2 M D ES EU 13SU-N ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.05 0.09 0.94 0.84 0.33 0.33 0.33 0.33 0.84 1.22 0.28 0.00 0.14 0.47 0.23 0.42 0.14 0.00 0.00 0.09 0.05 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.33 0.70 0.51 0.28 0.37 0.14 0.28 2.01 1.03 0.00 0.00 0.75 0.19 0.14 0.70 0.14 0.00 0.00 0.23 0.05 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.66 1.26 0.56 0.09 0.75 0.19 0.19 0.94 0.47 0.00 0.00 0.47 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.23 0.19 0.75 2.39 0.56 0.51 0.61 0.28 0.09 0.70 0.19 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.19 0.09 0.33 1.45 1.26 0.42 0.19 0.05 0.05 0.19 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.05 0.23 0.66 0.75 0.33 0.94 0.09 0.05 0.66 1.36 0.19 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.09 0.05 0.61 0.33 0.14 0.80 0.28 0.05 0.84 0.94 0.05 0.00 0.00 0.00 0.05 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.19 0.37 0.33 0.05 1.26 0.42 0.19 0.89 1.45 0.28 0.00 0.09 0.09 0.05 0.47 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.09 0.23 0.19 0.09 0.70 0.14 0.14 0.56 1.87 0.00 0.00 0.66 0.05 0.09 0.89 0.33 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.14 0.33 0.05 0.61 0.09 0.09 0.23 0.66 0.09 0.00 0.75 0.09 0.05 1.17 1.26 0.00 0.00 0.33 0.09 0.00 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.05 0.05 0.05 0.14 0.33 0.51 0.14 0.09 0.61 0.51 0.09 0.00 0.56 0.33 0.28 1.03 1.22 0.00 0.00 0.05 0.00 0.09 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.28 0.56 0.37 0.61 0.09 0.14 0.61 0.66 0.33 0.09 1.26 0.28 0.09 0.33 0.00 0.00 0.00 0.14 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.37 0.89 1.22 0.94 0.89 0.47 0.28 0.70 0.51 0.09 0.19 0.61 0.05 0.09 0.09 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.19 0.05 0.51 0.84 0.70 0.28 0.94 0.23 0.33 0.66 0.09 0.00 0.00 0.19 0.00 0.05 0.14 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.09 0.14 0.80 0.80 0.28 1.03 0.23 0.23 0.56 0.19 0.00 0.00 0.09 0.00 0.05 0.09 0.19 0.00 0.00 0.00 0.00 0.00 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.61 0.84 0.14 1.17 0.28 0.56 1.87 1.12 0.00 0.00 0.61 0.14 0.14 0.37 0.00 0.00 0.00 0.09 0.09 0.00 0.37 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.00 0.00 0.00 0.51 0.51 0.94 0.89 4.02 12.21 9.92 4.63 11.70 11.70 3.46 3.09 12.87 12.45 1.40 0.28 6.22 6.22 1.78 1.31 5.99 3.42 0.00 0.00 0.94 0.94 0.28 0.09 1.26 0.00 0.00 0.00 0.00 0.05 0.09 0.00 0.00 0.00 0.14 0.94 0.89 4.02 12.21 9.92 4.63 33.13 3.46 3.09 12.87 12.45 1.40 0.28 45.25 1.78 1.31 5.99 3.42 0.00 0.00 18.72 0.28 0.09 1.26 0.00 0.00 0.00 2.57 Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9oo0 FITABLE9 continued-19-Braidwood Generating Station 34 ft. Wind Speed and Direction July-September, 2011 I99Ft-30Ft Delta-T (F)SPEED-----------------------------WIND DIRECTION CLASSES--

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

CLASS N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL---------

STABILITY CLASSES ..........

EU MU SU N SS MS ES TOTAL EU 1 MU 9 SU 2 SS 4 MS ES EU T SU N ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.o0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 99.86 TOT 7.25 8.00 5.80 6.74 4.49 5.38 4.54 6.22 6.13 6.32 6.27 5.90 7.67 5.29 5.10 8.61 99.86 19.37 6.46 5.47 24.24 28.08 11.32 4.91 Wind Direction by Stability N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.61 0.84 0.61 1.45 2.29 1.12 0.33 1.36 0.37 0.42 3.18 1.87 0.51 0.28 1.22 0.33 0.28 1.59 1.73 0.56 0.09 0.84 0.51 0.28 1.45 2.57 0.56 0.51 0.28 0.23 0.14 0.51 1.64 1.26 0.42 0.98 0.09 0.09 0.94 2.01 0.94 0.33 0.80 0.37 0.19 1.12 1.54 0.37 0.14 1.36 0.56 0.23 1.59 1.82 0.61 0.05 1.36 0.23 0.23 1.59 2.43 0.19 0.09 1.68 0.28 0.14 1.68 2.06 0.42 0.05 1.17 0.47 0.51 1.78 1.78 0.23 0.33 2.01 0.37 0.23 0.98 0.94 0.89 0.47 1.50 0.56 0.51 1.17 1.50 1.31 1.12 1.17 0.42 0.42 1.31 0.98 0.70 0.28 1.17 0.28 0.37 1.03 1.17 0.80 0.28 1.87 0.51 0.75 2.76 1.73 0.84 0.14 19.37 6.46 5.47 24.24 28.08 11.32 4.91-STABILITY CLASSES-Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.00 2.29 3.32 1.40 0.23 0.00 0.00 0.00 1.82 3.84 1.92 0.42 0.00 0.00 0.00 2.71 2.53 0.56 0.00 0.00 0.00 0.00 4.82 1 .87 0.05 0.00 0.00 0.00 0.00 3.84 0.66 0.00 0.00 0.00 0.00 0.00 2.06 3.28 0.05 0.00 0.00 0.00 0.00 1.31 2.95 0.28 0.00 0.00 0,00 0.00 0.98 4.49 0.70 0.05 0.00 0.00 0.00 0.66 3.42 2.01 0.05 0.00 0.00 0.00 0.61 1.78 3.32 0.61 0.00 0.00 0.00 0.66 1.97 3.42 0.23 0.00 0.00 0.00 1.22 2.53 1.97 0.19 0.00 0.00 0.00 3.60 3.14 0.94 0.00 0.00 0.00 0.00 2.62 2.25 0.42 0.00 0.00 0.00 0.00 2.20 2.25 0.42 0.23 0.00 0.00 0.00 1.73 5.01 1.26 0.56 0.05 0.00 0.14 33.13 45.25 18.72 2.57 0.05 0.00-WIND SPEED CLASSES-CALM< 3.5 mph 3.6 -7.5 mph 7.6 -12.5 mph 12.6 -18.5 mph 18.6 24.5 mph> 24.5 mph Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo TABLE 10-20-Braidwood Generating Station 34 ft. Wind Speed and Direction October-Decenaer.

2011 199Ft-30Ft Delta-T (F)Number of Observations

-2170 Values are Percent Occurrence SPFFn ...................

f- -............-...

WIND DIRFCTION CIASSES---------

STABILITY CLASSES ----------

CLASS N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL EU 11 SU N SS MS ES TOTAL f EU MU C SU LSS MMS ES EU I SUi-N 3 SS ES ElEU MU 4 SU-N 7 SS MS 8 SU/2 MS ES EU N N a S 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.23 0.00 0.00 0.00 0.05 0.05 1 .20 0.37 0.05 0.00 0.14 0.09 0.09 1.94 0.05 0.00 0.00 0.00 0.00 0.00 0.69 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.05 0.05* 0.00 0.00 0.00 0.05 0.78 0.32 0.05 0.00 0.05 0.05 0.05 1.66 0.14 0.00 0.00 0.00 0.00 0.00 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.23 0.28 0.09 0.05 0.00 0.00 0.00 1.01 0.46 0.00 0.00 0.00 0.00 0.09 0.78 0.00 0.00 0.00 0.00 0.00 0.00 0.18 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.55 0.23 0.05 0.09 0.05 0.00 1.52 0.46 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.10 0.32 0.41 0.51 0.00 0.00 0.00 0.23 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.05 0.23 0.28 0.00 0.05 0.00 0.09 0.28 0.28 0.09 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.05 0.09 0.37 0.60 0.05 0.28 0.05 0.46 1.06 0.55 0.00 0.09 0.05 0.00 0.32 0.60 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.09 0118 0.18 0.09 0.37 0.05 0.23 1.38 2.63 0.32 0.00 0.00 0.09 0.09 1.80 1.15 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.05 0.18 0.18 0.18 0.05 0.09 0.51 1.94 0.00 0.05 0.46 0.37 0.32 1.94 2.72 0.00 0.00 0.00 0.00 0.09 3.13 1.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.14 0.18 0.18 0.05 0.00 0.09 0.55 1.34 0.23 0.18 0.14 0.23 0.23 1.24 1,71 0.18 0.00 0.00 0.05 0.51 2.12 0.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.18 0.14 0.14 0.00 0.05 0.23 0.55 1.34 0.09 0.00 0.09 0.14 0.09 1.75 0.41 0.09 0.00 0.00 0.00 0.05 0.41 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.46 0.41 0.14 0.00 0.09 0.23 1.38 2.44 1.61 0.00 0.00 0.14 0.09 0.88 0.37 0.00 0.00 0.05 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.28 0.88 0.74 0.55 0.05 0.28 0.28 0.97 1.80 0.37 0.00 0.09 0.18 0.28 1.29 1.01 0.00 0.00 0.46 0.09 0.05 0.69 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.41 0.78 0.51 0.41 0.32 0.28 0.14 1.43 0.69 0.00 0.00 0.23 0.09 0.09 0.60 0.09 O. DO 0.00 0.00 0.00 0.05 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.32 0.23 0.18 0.18 0.32 0.14 0.05 1.29 0.74 0.00 0.00 0.23 0.14 0.05 1.71 0.37 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.09 0.18 0.05 0.09 0.18 0.18 1.52 0.65 0.05 0.00 0.00 0.00 0.14 1.57 0.05 0.00 0.00 0.00 0.00 0.00 0.78 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.28 2.30 4.56 4.10 3.41 1.52 1.52 1.52 1.66 14.88 16.64 3.59 0.32 1.52 1.52 1.57 1.61 17.51 8.66 0.28 0.00 0.51 0.51 0.28 0.74 8.66 1.80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 O.00 0.14 0.28 2.30 4.56 4.10 3.41 14.79 1.52 1.66 14.88 16.64 3.59 0.32 40.14 1.57 1.61 17.51 8.66 0.28 0.00 31.15 0.28 0.74 8.66 1.80 0.00 0.00 11.98 Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo LTABLE 10 continued-21-Braidwood Generating Station 34 ft. Wind Speed and Direction October-December.

2011 199Ft-3OFt Delta-T (F)------------.-.-------

STABILITY CLASSES ----------

SPEED CLASS..................................

WIND DIRECTION CLASSES N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL EU MU SU N SS MS ES TOTAL U EU IMU 9 SU 2 SS 4 MS SES EU G U N ES 0.00 0.00 0.00 0.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.65 0.09 0.00 0.00 0.00 0.05 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 1.47 0.09 0.00 0.00 0.00 0.00 0.05 0.00 0.18 0.00 0.00 0.00 0.05 0.09 1.47 0.09 0.00 0.00 1.71 0.05 0.00 0.18 0.00 0.00 0.00 0.23 TOT 5.21 3.69 3.23 3.04 1.84 1.52 4.75 8.89 14.10 10.74 5.99 8.57 10.32 6.41 6.04 5.67 100.00 3.55 3.59 4.38 45.02 31.75 7.97 3.73 100.00 Wind Direction by Stability N NNE NE ENE E ESE SE SSE 5 SSW SW WSW W WNW NW NNW TOTAL 0.14 0.14 0.14 4.10 0.65 0.05 0.00 0.05 0.05 0.09 2.90 0.51 0.09 0.00 0.00 0.00 0.09 2.21 0.78 0.09 0.05 0.09 0.05 0.00 1.61 1.01 0.23 0.05 0.00 0.00 0.05 0.41 0.46 0.41 0.51 0.00 0.05 0.00 0.28 0.32 0.51 0.37 0.14 0.37 0.05 0.92 1.75 0.92 0.60 0.37 0.18 0.32 3.32 4.10 0.51 0.09 0.65 0.41 0.65 6.08 5.90 0.18 0.23 0.18 0.37 0.92 4.65 3.64 0.60 0.37 0.09 0.18 0.37 2.90 1.98 0.32 0.14 0.05 0.32 0.37 2.40 3.27 2.03 0.14 0.60 0.55 0.60 3.23 3.69 1.11 0.55 0.55 0.41 0.28 2.67 1.57 0.51 0.41 0.55 0.32 0.14 3.32 1.34 0.18 0.18 0.09 0.18 0.32 4.01 0.78 0.23 0.05 3.55 3.59 4.38 45.02 31.75 7.97 3.73-STABILITY CLASSES-Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N .NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.00 0.32 1.71 2.30 0.69 0.18 0.00 0.00 0.23 1.20 1.94 0.28 0.05 0.00 0.00 0.65 1.47 0.88 0.23 0.00 0.00 0.00 0.92 2.12 0.00 0.00 0.00 0.00 0.00 1.47 0.37 0.00 0.00 0.00 0.00 0.00 0.69 0.78 0.05 0.00 0.00 0.00 0.00 1.15 2.44 1.06 0.09 0.00 0.00 0.00 0.60 4.98 3.13 0.18 0.00 0.00 0.00 0.46 2.81 5.81 4.42 0.60 0.00 0.00 0.60 2.44 3.73 3.04 0.78 0.14 0.00 0.46 2.26 2.58 0.51 0.09 0.09 0.00 1.20 5.76 1.47 0.14 0.00 0.00 0.00 2.44 3.73 2.86 1.29 0.00 0.00 0.00 2.17 2.86 1.11 0.28 0.00 0.00 0.00 0.97 2.53 2.49 0.05 0.00 0.00 0.00 0.46 2.67 1.75 0.78 0.00 0.00 0.00 14.79 40.14 31.15 11.98 1.71 0.23-WIND SPEED CLASSES-CALM-3.5 mph 3.6 -7.5 mph 7.6 -12.5 mph 12.6 -18.5 mph 18.6 -24.5 mph> 24.5 mph Murray & Trettel, Inc. 60o First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo L TABLE 11-22-Braidwood Generating Station 34 ft. Wind Speed and Direction January-December.

2011 199Ft-3OFt Delta-T (F)Number of Observations

-8595 Values are Percent Occurrence SPEED ----------------------------------

WIND DIRECTION CLASSES ----------------------------------

---

STABILITY CLASSES ..........

[J CLASS N EU MU C SU A N MMS ES EU 1 SU-N 3 SS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.01 0.07 0.40 0.22 0.09 0.10 0.13 0.12 0.80 0.59 0.09 0.00 0.08 0.19 0.09 1.29 0.08 0.01 0.00 EU K.SU N SS MS ES NNE 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.17 0.28 0.19 0.08 0.17 0.08 0.16 1.09 0.74 0.02 0.00 0.35 0.10 0.08 1.69 0.15 0.00 0.00 0.10 0.01 0.02 0.43 0.00 0.00 0.00 NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL EU MU SU N SS MS ES TOTAL 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.02 0.30 0.62 0.27 0.10 0.34 0.09 0.16 1.56 0.63 0.01 0.03 0.47 0.12 0.08 1.28 0.08 0.00 0.00 0.01 0.03 0.02 0.17 0.12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.06 0.05 0.40 1.15 0.30 0.27 0.45 0.16 0.15 1.91 0.85 0.00 0.00 0.07 0.05 0.06 0.56 0.15 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.05 0.03 0.24 1.01 0.62 0.26 0.28 0.10 0.09 0.70 0.36 0.00 0.00 0.02 0.01 0.00 0.27 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.01 0.13 0.37 0.38 0.20 0.37 0.08 0.07 0.63 0.90 0.16 0.02 0.07 0.00 0.02 0.27 0.19 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.10 0.22 0.24 0.22 0.40 0.19 0.05 0.81 1.19 0.16 0.00 0.07 0.07 0.05 0.79 0.49 0.00 0.00 0.07 0.01 0.01 0.16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.00 0.12 0.28 0.17 0.05 0.48 0.14 0.13 1.20 1.50 0.19 0.01 0.03 0.13 0.13 1.08 0.43 0.00 0.00 0.01 0.00 0.03 0.09 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.06 0.10 0.10 0.08 0.35 0.09 0.12 0.57 1.27 0.03 0.01 0.33 o.i4 0.19 1.49 1.41 0.00 0.00 0.02 0.05 0.07 1.02 0.56 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.02 0.03 0.09 0.17 0.06 0.19 0.06 0.05 0.37 0.66 0.08 0.05 0.34 0.14 0.14 1.24 1.18 0.05 0.00 0.21 0.08 0.20 0.95 0.25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.01 0.01 0.03 0.07 0.10 0.12 0.15 0.06 0.14 0.67 0.87 0.07 0.00 0.29 0.15 0.16 1.87 1.20 0.02 0.00 0.09 0.05 0.13 0.47 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.07 0.29 0.30 0.15 0.20 0.06 0.17 0.99 1.35 0.67 0.02 0.41 0.19 0.17 0.80 0.31 0.00 0.00 0.09 0.08 0.02 0,08 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.03 0.24 0.70 0.71 0.43 0.34 0.24 0.24 1.05 1.00 0.49 0.05 0.44 0.13 0.20 0.93 0.48 0.00 0.00 0.30 0.06 0.08 0.35 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.07 0.01 0.42 0.72 0.42 0.23 0.55 0.17 0.20 1.47 0.85 0.05 0.00 0.45 0.03 0.13 0.81 0.26 0.00 0.00 0.05 0.00 0.02 0.19 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.03 0.24 0.56 0.34 0.16 0.52 0.19 0.16 0.97 0.55 0.00 0.00 0.37 0.12 0.06 6.93 0.24 0.00 0.00 0.01 0.01 0.00 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.02 0.13 0.33 0.33 0.06 0.38 0.22 0.26 1.29 0.71 0.02 0.00 0.24 0.08 0.09 0.92 0.02 0.00 0.00 0.06 0.03 0.02 0.38 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.05 0.01 0.01 0.00 0.19 0.19 0.37 0.37 2.77 7.19 4.87 2.56 5.27 5.27 2.07 2.27 16.08 14.02 2.06.0.20 4.04 4.04 1.64 1.65 16.23 6.72 0.10 0.00 1.07 1.07 0.43 0.64 4.69 1.34 0.00 0.00 0.02 0.05 0.01 0.01 0.00 0.09 0.37 0.37 2.77 7.19 4.87 2.56 18.32 0.00 2.07 2.27 16.08 14.02 2.06 0.20 41.97 EU MU 8 SU N N I1SS 2MS ES EU 3 SU.Ný1 S ES 1.64 1.65 16.23 6.72 0.10 0.00 30.39 0.03 0.01 0.00 0.30 0.00 0.00 0.00 0.43 0.64 4.69 1.34 0.00 0.00 8.17 Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo UTABLE 11 continued-23-Braidwood Generating Station 34 ft. Wind Speed and Direction January-December.

2011 199Ft-3OFt Delta-T (F)SPEED ---------CLASS N NNE-------------------------

WIND DIRECTION CLASSES ----------------------------------

---

STABILITY CLASSES ----------

NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL EU MU SU N SS MS ES TOTAL EU 1 MU 9 SU 2ISS 4 MS ES EU TSU N 2 SS 4 MS ES 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.15 0.00 0.00 0,00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.03 0.01 0.26 0.10 0.00 0.00 0.00 0.01 0.00 0.03 0.03 0.00 0.00 0.00 0.01 0.02 0.05 0.01 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.02 0.06 0.07 0.52 0.19 0.00 0.00 0.00 0.00 0.01 0.00 0.06 0.03 0.00 0.00 0.06 0.07 0.52 0.19 0.00 0.00 0.86 0.01 0.00 0.06 0.03 0.00 0.00 0.10 TOT 4.78 6.00 6.62 6.70 4.13 3.91 5.40 6.31 8.27 7.16 7.03 6.55 8.62 7.14 5.56 5.63 99.91 10.59 4.58 5.03 40.40 29.51 7.05 2.76 99.91 Wind Direction by Stability N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.23 0.33 0.22 2.51 1.07 0.33 0.09 0.63 0.21 0.29 3.40 1. 19 0.21 0.08 0.81 0.28 0.29 3.32 1.50 0.28 0.14 0.57 0.27 0.26 2.86 2.15 0.33 0.27 0.33 0.16 0.13 1.21 1.43 0.62 0.26 0.47 0.08 0.10 1.04 1.45 0.55 0.22 0.54 0.31 0.15 1.87 1.90 0.41 0.22 0.52 0.31 0.29 2.49 2.27 0.36 0.06 0.70 0.29 0.42 3.29 3.34 0.14 0.09'0.76 0.33 0.42 2.90 2.35 0.30 0.10 0.56 0.28 0.47 3.12 2.29 0.20 0.12 0.71 0.34 0.38 1.94 2.02 0.98 0.17 1.09 0.45 0.56 2.58 2.26 1.20 0.48 1.06 0.28 0.36 2.89 1.86 0.47 0.23 0.92 0.33 0.26 2.21 1.35 0.34 0.16 0.70 0.34 0.41 2.72 1.06 0.35 0.06 10.59 4.58 5.03 40.40 29.51 7.05 2.76-STABILITY CLASSES-Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW TOTAL 0.00 0.00 0.00 0.00 0.80 0.76 1.35 2.27 1.84 2.28 2.83 3.53 1.75 2.37 2.02 0.91 0.35 0.57 0.36 0.00 0.05 0.02 0.06 0.00 0.00 0.00 0.00 0.00 0.00 2.23 1.54 0.36 0.00 0.00 0.00 0.00 1.12 2.23 0.55 0.01 0.00 0.00 0.00 0.88 2.79 1.47 0.26 0.00 0.00 0.00 0.65 3.64 1.80 0.20 0.01 0.00 0.00 0.38 2.44 3.55 1.72 0.17 0.00 0.00 0.40 1.45 3.08 1.72 0.42 0.08 0.00 0.37 1.97 3.70 0.87 0.09 0.02 0.00 0.84 3.47 1.88 0.35 0.01 0.00 0.00 2.15 3.41 2.18 0.87 0.01 0.00 0.00 1.88 3.28 1.69 0.29 0.00 0.00 0.00 1.36 2.39 1.72 0.09 0.00 0.00 0.00 0.87 2.89 1.36 0.50 0.01 0.00 0.09 18.32 41.97 30.39 8.17 0.86 0.10-WIND SPEED CLASSES-CALM< 3.5 mph 3.6 -7.5 mph 7.6 -12.5 mph 12.6 -18.5 mph 18.6 -24.5 mph> 24.5 mph Murray & Trettel, Inc. 600 First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9000 5.5 Precipitation Monthly totals and the maximum 24-hour and maximum 1-hour precipitation amounts are summarized below. The month with the most measured precipitation was April. The month with the least measured precipitation was January*.

The maximum 24-hour total was 2.87" (May) and the maximum 1-hour total was 0.85" (June*).Table 12 Precipitation Totals (Inches) -2011 Braidwood Site Maximum Maximum Month Total 24-hour 1-hour January 0.60* 0.19* 0.04*February 2.86* 1.13* 0.45*March 1.47* 0.77* 0.42*April 5.97 1.66 0.43 May 5.54 2.87 0.64 June 4.87* 1.93* 0.85*July 1.26* 0.86* 0.41*August 3.34 1.00 0.84 September 3.74* 1.55* 0.28*October 1.27* 0.54* 0.25*November 3.22* 0.86* 0.39*December 2.57* 1.91* 0.50*TOTAL: 36.71*some data are missing -actual precipitation may be under-reported Murray & Trettel, Inc. 60o First Bank Drive, Suite A Palatine, Illinois 60067 (847)963-9000 5.6 Doses Resulting from Airborne Releases The following are the maximum annual calculated cumulative offsite doses resulting from Braidwood Station airborne releases.Unit 1: Dose gamma air (1)beta air (2)whole body (3)skin (4)organ (5) (child-bone)

Maximum Value 1.300 x 10.5 mrad 3.090 x 10" 5 mrad 3.384 x 10"1 mrem 2.210 x I0"s mrem 1.112 x 10÷0 mrem Unit I Compliance Status 10 CFR 50 Appendix I Yearly Objective Sector Affected North North North North North% of Appendix I 0.00 0.00 6.77 0.00 7.41 gamma air beta air whole body skin organ 10.0 20.0 5.0 15.0 15.0 mrad mrad mrem mrem mrem Unit 2: Dose gamma air (1)beta air (2)whole body (3)skin (4)organ (5) (child-bone)

Maximum Value 1.650 x 10.5 mrad 4.150 x 10"5 mrad 4.508 x 10"1 mrem 2.800 x 10's mrem 1.258 x 10+0 mrem Sector Affected North North North North North Unit 2 Compliance Status 10 CFR 50 Appendix I Yearly Objective gamma air beta air whole body skin organ 10.0 20.0 5.0 15.0 15.0 mrad mrad mrem mrem mrem% of Appendix I 0.00 0.00 9.02 0.00 8.39 1)(2)13)(4)(6)Gamma Air Dose -GASPAR II, NUREG-0597 Beta Air Dose -GASPAR II, NUREG-0597 Whole Body Dose -GASPAR II, NUREG-0597 Skin Dose -GASPAR II, NUREG-0597 Inhalation and Food Pathways Dose -GASPAR II, NUREG-0597 Murray & Trettel, Inc. 6oo First Bank Drive, Suite A Palatine, Illinois 60067 (847) 963-9ooo APPENDIX Murray & Trettel, Inc. 6oo First Bank Driue, Suite A Palatine, Illinois 60067 (847) 963-9ooo Exelon Contract Number 455465 Braidwood Meteorological Calibration I E4 7/10 R-28 Page 1 of 7 Date: POWER SUPPLIES+15.OOOV +/- 0.150V A: I .V I g o i Re+ V SSignal Conditioners I Digital Recorder:-15.OOOV + 0.150V A:- iV", 1O3 V B:- _I"'_V Signal Conditioner Voltage Out Digital recorder Specifications FJPRCP LO " PRCP HI AF AL AL EQUIV AF AL 3 ft.ý01') -VV , O , _. ,, ,(0 V " V 1 ,o " , WSZERO o.2iYV""S SPAN L/V9 V)JZERO V WD SPAN 051-7 V THI-LO V DP LO /3Z V DP HI ' 15" V DP HI-LO Y971 3 V OWS ZERO 4 is__ V WS SPAN 5-03V WDZERO. 0-Lo V WD SPAN V ATLO -.tD' V 5ATHI LIV.37 V[AT HI- LO 0; 03L V 34 ft.V OV Z.3 mph £.5 mph _"_mph_____ V 'lopmph i"". 0 mph "__mph-- V 2, 0-;"

• Z. oa ""_ v Z4_0_- 0 0- o-v"SY.7 ° .-7 0 o________V /.1:7/ ° -2,.I o -.-V /21.7 0 /zL.o --V____V /~ia 0 0-v 4(o~.L c I2~S o 0-V Signal Cond.0.OOOV +/- 0.050V 5.OOOV +/- 0.050V 0.015V+/- 0.025V 5.OOOV +/- 0.025V 0.O00V +/- 0.1OOV 5.OOOV +/- 0.100V 5.OOOV+/- 0.050V 5.000V +/- 0.050V Recorder AL EQUIV +/- 0.01" AL EQUIV +/- 0.01" AL EQUIV +/- 0.1mph AL EQUIV 1 0.1mph AL EQUIV +/- 10 AL EQUIV +/- 10 AL EQUIV +/- 0.1°F AL EQUIV +/- 0.1 0 F AL EQUIV +/- 0.1°F AL EQUIV +/- 0.1OF V" V V V V V V 203 f t./3 'mph. 'n ,_mph _--_mph IV) 0(, mph CC.' -mph -mph Z,IG, o Z. o -°s'q2,') * '-/i3 0 "--Jl i.'(bo "")a3 o -o 9.7go ° ,7 o -0 0.015V +/- 0.025V 5.000V +/- 0.025V 0.000V +/- 0.100V 5.OOOV +/- 0.1OOV 5.OOOV +/- 0.200V AL EQUIV +/- 0.1mph AL EQUIV +/- 0.1mph AL EQUIV +/- 10 AL EQUIV +/- 10 AL EQUIV +/- 0.1OF AL EQUIV +/- 0.1OF Muvrray & Trettel, Inc.

• 600 First Bank Dri,,, Suitt A. Polatine, Illinois

• 60067 9 (847) 963.9000 Exelon Contract Number 455465 E5 7/10 Braidwood Meteorological Calibration R-28 Page 2 of 7 Date: __-_____//

1:2 El El U':2 i U, n TOWER MEASUREMENTS 9 Ambient [] Ice Bath Measured Recorded Difference Specification 3'3 to Temperatures 30 ft. Amb. 199 ft. A T AF AL AF AL.60 OF _-_ _F -I.3. F O 0 F I'D _F -OF -1.3 O°F O__F)P.01_°F -°F 01 DVi F -F l.5 0 F +/-0.18°F Winds 34 ft. 20: AF AL AF 0-. mph a3 mph 0,3 mph 0.1 °1 30 ft. dew point AF AL d3, °F ---°F:24, DDF ____F Q, 0 °F OF+/-2.70F WS stall Forw. WD Revr. WD Tracking/wear I ft.AL.2-1mph Specification 0.3mph + 0.45mph 3013630 t 50 1830 +/- 50 Comments:W-/b wp'"i 14} MT-10-7l 3 MT0654 A -OO q 7 Mu'oIVJ rNOD57 M Y0 3 r(,P W LT () 13 L~4T 005-5 Murray & Tiettel, Inc. 600 Finig Bank Drive, Suite A -Palatine, Illinois .6006 7 I (84 7) 963.9000 Braidwood Meteorological Calibration E6 7/10 R-28 Page 3 of 7 Date: ?,-I Dates of Last Wind Sensor Bearing Replacements:

]4ft 203 ft, (6 mos.) Wind Speed: .3-b) ...2!I-i (12 mos.) Wind Direction:

3'j ) .' i-30ft. .199ft.Aspirators:

Ot- -C-Operation of De-ice Heat Lamp System (Aug-Mar):

QY ci 4 A4 ,1 P zo Le] Operation of Rain Gauge: OK Tips Poured -Tips Recorded_51 Debris screen: In (jI Installed Removed UPS Check; 0 -Tower Lighting Good Fair Poor Tower Condition Good Fair Poor Beacon E ] 0 0 Paint 0 0 0 Sidelights 0 00 Li Wiring 0 0] St Flasher 0 D Shelter condition

-i U U Note: Calibration Instruments:

Next Cal Due*AF = As Found Psychrometer-S/N -2,01([ AL = As Left Digital multimeter

-S/N -, 2 71 L(-= no change (AF=AL) Digital multimeter

-S/N -FS = Full Scale Ehnicians:

feiX

/11 Eornments:

Qý ykk~ WAS " oqe/U ) Lie C0 jtF, P( "-rS D r F_ k a5-Lo r/j ~ ~ JA "ML Pqu leF tfr'-'e f 1A-'._ ýP Signature:

Mutray & Trttl, Inc.

• 600 Fiat Bank Drive, Suite A .Palatine, Illinois .60067 9 (847) 963.9000 Exelon Contract Number 455465 E7 7110 R-28 Page 4 of 7 System Response Checkl'Site: Braidwood System: Microtel Low Scale 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check Expected 10.0 +/-0.4 10.0 +/-0.4 54 +/-2 54 +/-2 -7.60 +/-0.5 -8.00 +/-0.18 -7.60 +/-0.5 Response As Found Response .6, .C____ _ -'___.As Left -_Response Mid Sca 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check Expected 50.0 +/-0.4 50.0 +/-0.4 270+/-2 270 +/-2 50.00 +/-0.5 0.00 +/-0.18 50.00 +/-0.5 Response As Found Response __ _ _ lot_ A ~ 21_ __ __ _ _As Left Response Full Scale 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check I Expected 90.0 +/-0.4 90.0 +/-0.4 486 +/-2 486 +/-2 107.60 +/-0.5 8.00 +/-0.18 107.60 +/-0.5 Response .....As Found .- .Response ____ ________ ________ 0 z As Left --Response -Mffay & Tret,,, Inc.

• 600 FiRt Bank Drive, Suite A. Palatine, Illinois .60067 I (847) 963.9000 Exelon Contract Number 455465-E9 7/10 R-28 Page 6 of 7 System Response Check Date: '3- ZZ- , Site: Braidwood System: Process Computer -Metric Units Low Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34' WD 34' WS 30' T 199' AT 30' DP 203' WD 203' WS Expected 54 +/-2 4.5 +/-0.2 -22.00 +/-0.3 -8.50 +/-0.1 -22.00 +/-0.3 54 +/-2 4.5 +/-0.2 Response As Found , L -I.q13 Z I.& C,5" -L4 q -q -Response As Left ---Response _Mid Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34' WD 34' WS 30' T 199' AT 30' DP 203' WD 203' WS Expected 270 +/-2 22.35+/-0.2 10.00 +/-0.3 0.00 +/-0.1 10.00 +/-0.3 270 +/-2 22.35 +/-0.2 Response As Found Response .7O."7 ZZ. -. -O.0, 2 .31 As Left ..- _.-Response Full Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34' WD 34' WS 30' T 199' AT 30' DP 203' WD 203' WS Expected 486 +/-2 40.5 +/-0.2 42.00 +/-0.3 8.50 +/-0.1 42.00 +/-0.3 486 +/-2 40.5 +/-0.2 Response As Found Response L 4(o.o(,2 L 1 0 , ..2.0¶" o ..- '-tG.qr As Left -Response rA. L 4- .0 I I Muwray & Tiette1, Inc~. -600 Fiat Bank. DNie, Suite A -Palatine, Illinois -6006 7 (84 7) 963.9000 Exelon Contract Number 455465 E8 7/10 R-28 System Response Check Page 5 of 7 Date:____________

Site: Braidwood System: Process Computer -English Units Low Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 10.0 +/-0.4 54 +/-2 10.0 +/-0.4 54 +/-2 -7.60 +/-0.5 -8.00 +/-0.18 -7.60 +/-0.5 0.10 +/-0.01 Response As Found Response I0." 5'i.8 .7 .--.Q -7L-As Left ..Response Mid Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 50.0 +/-0.4 270 +/-2 50.0 +/-0.4 270+/-t2 50.0 +/-0.5 0.00 +/-0.18 50.0 +/-0.5 0.50 +/-0.01 Response .....As Found LieI 050 Response -,_._ _.__. _____ ______As Left ---- -Response Full Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34'WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 90.0 +/-0.4 486 +/-2 90.0 +/-0.4 486 +/-2 107.60 +/-0.5 8.00 +/-0.18 107.60 +/-0.5 0.90 +/-0.01 Response As Found 1o0.1 187-(a O 0 -o 07. Y --1 0.9 Response As Left --.Response I I _ I I Maniay & Trettel, Inc. -600 Fint Bank DNue, Suite A. Paltfine.

llino.is 60067 3 (847) 963-9000 Exelon Contract Number 455465~El(711 C R-2E System Response Check Page 7 of 7 Date:_"' 3 Site: Braidwood System: Control Room Indicators Low Scale 3 WS 203 WS 34' WD 203' WD 34' T 199' AT 30' DP Check Expected 10 +1.0 10+/-1.0 54 +/-2 54 +/-2 -7.60 +/-1.0 -8.00 +/-1.0 -7.6 +/-1.0 Response As Found Response _As Left ....Response ..Mid Sca 34' WS 203' WS 34' WD 203' WD 34' T 199' AT 30' DP Check Expected 50 +/-1.0 50 +/-1.0 270 +/-2 270+/-2 50.00 +/-1.0 0.00 +/-1.0 50.0 +/-1.0 Response As Found Response .5c) 62c- _.o As Left .Response .......Full Scale 34' WS 203' WS 34' WD 203' WD 34' T 199' &,T 30' DP Check Expected 90 +/-1.0 90 +/-1.0 486 +/-2 486 +/-2 107.60 +/-1.0 8.00 +/-1.0 107.6 +/-1.0 Response I ....As Found -oB Response _90 V-,& ____- ___ o_ _ _ .0 _ _o_As Left ..... ....Response ....AS, L44 7-9/6 Musrray & Treaze Inc -600 Fint Bank Dritme Suite A -Palatine, illinais -6006? 3W (84 7) 963.9000 Exelon Contract Number 455465 Braidwood Meteorological Calibration E4 7/10 R-28 Page 1 of 7 Date: POWER SUPPLIES+ 15.000V +/- 0.150V A: +4Q ( V B: + IS- 00 V[ Signal Conditioners I Digital Recorder:-1 5.OOOV +/- 0. 150V A: -l. 13ý0 V B: -C)'-.O'(0 V Signal Conditioner Voltage Out AF AL AL EQUIV Digital recorder AF AL 3 ft.C.DJ -DO f. 00 " Specifications PRCP LO -C0c) V PRCP HI .5 V WSZERO C.IS V""SSPAN ý5161 V)J ZERO -, I (-WD SPAN _i =6(V T LO

• 2C, V THI .V THI-LO -Rg V U DP LO iiT y v DPHI 5-(q9 V DP HI-LO Lt, .V WSZERO ,OVDk V WD SPAN V AT LO 05*ý V AT HI __-_ _ V AT HI -LO .L, .V-V ,0 "-V U " 34 ft_ V O._mph.V ICLO mph-V b72--v SiIVLo-v 541tz. o~" V-V /I&.2L--Vmph -mph 1o0 ý mph -mph 0-,-0 02.L a Signal Cond.O.OOOV +/- 0.050V 5.OOOV +/- 0.050V 0.015V +/- 0.025V 5.OOOV +/- 0.025V O.O00V 10.100V 5.OOOV +/- 0.100V 5.OOOV +/- 0.050V 5.000V +/- 0.050V 0.015V +/- 0.025V 5.000V : 0.025V 0.OOOV +/- 0.100V 5.OOOV+/- 0.100V 5.000V +/- 0.200V Recorder AL EQUIV +/- 0.01" AL EQUIV +/- 0.01" AL EQUIV +/- 0.1mph AL EQUIV +/- 0.1mph AL EQUIV +/- 10 AL EQUIV +/- 1°AL EQUIV +/- 0.1OF AL EQUIV +/- 0.1°F AL EQUIV +/- 0.1°F AL EQUIV +/- 0.1 0 F-[-?.Lo o 12.L. -L) 8 0 9- 0-V D.C> L> V"- V-- V-" V-" V-V 203 f t .t,' mph 0, .3 mph ____mph (w. ) mph mph -mph 9 L43.-o --2" a -- o 3 -.I. 0 .a t jq)a 9cO AL EQUIV +/- 0.1mph AL EQUIV +/- 0.1mph AL EQUIV +/- 10 AL EQUIV +/- 1*AL EQUIV +/- 0.1°F AL EQUIV +/- 0.1°F ,, Murray & Trend, Inc. -600 Firs Bankc Drive, Sauite A.- Palatnea, Illinois.-

6006 7 It(84 7) 963.9000 Exelon Contract Number 455465 E5 7/10 Braidwood Meteorological Calibration R-28 Page 2 of 7 Date:-TOWER MEASUREMENTS EJ Ambient -Ice Bath Measured Recorded Difference Specification Tern 30 ft. Amb.AF AL_.F -- F -Z-°F 0 F 2, 0 O, "F -F 0..1+/-0.5 0 F +/-0.34 ft.AF ALmph 0,I) mph"(, Z 0 -0 0~ o _--_peratures 199 ft. ATAL* 70 OF -OF 8O °F -°F 0 O F O F 1 8oF Vinds 30 ft. dew point AF AL 1-. OF OF (PSB-0F -°F 2-0 0 F F__F+/-2.7 0 F WS stall Forw, WD Revr. WD Tracking/wear 203 ft.AF AL Q.?ý mph -!;>-mph 0o -0 0 -a Specification 0.3mph +/- 0.45mph 30/3630 +/- 50 1830 +/- 50 U ~~UComments:

00 s-54 00 13 &,N b oo Q B Muray & TTettel, Inc.

• 600 Firt Bank DTie, Suite A Palatine, Illinois , 60067 '3 (847) 963.9000 Exelon Contract Number 455465 E6 7/10 Braidwood Meteorological Calibration R-28 Dt Page 3 of 7 Date: 7 "j UDates of Last Wind Sensor Bearing Replacements:

34 ft. 203 ft.Iii (6 mos.) Wind Speed: / 4 7- " (12 mos.) Wind Direction:

3IV * ( "ii*i 11 U U U U 0 0 0 30 ft. 199 ft.Aspirators:

1-_v Operation of De-ice Heat Lamp System (Aug-Mar):

J*Operation of Rain Gauge: Tips Poured .Tips Recorded Debris screen: 0 Out Installed Removed UPS Check; ID.--Tower Lighting Good Fair Poor Tower Condition Good Fair Poor Beacon 0 0 11 Paint 7 C Side lights E l -1C Wiring E01 0 0 Flasher EI E l Shelter condition 0 C C Note: Calibration Instruments:

o.nSfk7A.Tb 1" /Zq Next Cal Due AF = As Found Psychrometer

-S/N -4 ooT 2.:1 I AL = As Left Digital multimeter

-S/N -94 gio? z69 ce'er to(-= no change (AF=AL) Digital multimeter

-S/N -FS = Full Scale echnicians:

Plc ke M a4 1 J 2 (o /tA.a A ke Comments: Signature:

Murray & Trettel, Inc. -600 First Bank Drve, Suite A -Palatine, Illinois -6006? 73 (84?7) 963.9000 Exelon Contract Number 455465 rn E7 7/10 R-28 Page 4 of 7 System Response Check Date: ' /-,"- -Ie Site: Braidwood System: Microtel Low Scale 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check Expected 10.0 +/-0.4 10.0 +/-0.4 54 +/-2 54 +/-2 -7.60 +/-0.5 -8.00 +/-0.18 -7.60 +/-0.5 Response As Found Response '__"__ _ 0,__ $6 -._._"_As Left ._ .- -Response -Mid Scale 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check Expected 50.0 +/-0.4 50.0 +/-0.4 270+/-2 270 +/-2 50.00 +/-0.5 0.00 +/-0.18 50.00 +/-0.5 Response As Found Ll9 q ý, £-bLr (S- 0 0, o Response LIq.. L ,' __ __ _- O___As Left ...Response___

Full Scale 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check Expected 90.0 +/-0.4 90.0 +/-0.4 486+/-2 486 +/-2 107.60 +/-0.5 8.00 +/-0.18 107.60 +/-0.5 Response As Found Response 90. q0.6 q IVL I ,-0 011- 'As Left ---Response Muray & Ticttel, Inc. -600 Fint Bank Drite, Suite A. Palarine, Illinois.

60067 2 (847) 963-9000 Exelon Contract Number 455465 E8 7110 R-28 Page 5 of 7 System Response Check Date: Site: Braidwood;ystem: Process Computer -English Units Low Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 10.0 +/-0.4 54 +/-2 10.0+/-0.4 54 *2 -7.60 t0.5 -8.00 +/-0.18 -7.60 +/-0.5 0.10 *0.01 Response ,.As Found -SLIL. ---"0 -b.O ---7-L-0 cOO Response I. 'i '.-'As Left -..._..-. .-Response Mid Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 50.0 +/-0.4 270 +/-2 50.0 +/-0.4 270 +/-2 50.0 +/-0.5 0.00 +/-0.18 50.0 +/-0.5 0.50 +/-0.01 Response _As Found L ___1. (o&c_.)Response ..-i.- O C.Ct .__.__ _.__-_As Left Response -Full Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 90.0 +/-0.4 486 ,2 90.0 +/-0.4 486 +/-2 107.60+/-0.5 8.00 +/-0.18 107.60 +0.5 0.90 +/-0.01 Response _., As Found Response g7.. _ .l f-J0 .O0 /"7I 0 (J As Left Response Murra, & Trel, Inc.

• 600 Fret Bank Driwv, Suite A. Palatine, IUirwis -60067 2 (847) 963.9000 Exelon Contract Number 455465 r~ m ES 7/1 (R-21 Page 6 of-System Response Check Date: 7- &-//Site: Braidwood System: Process Computer -Metric Units Low Scae Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34'WD 34'WS 30'T 199' T 30' DP 203'WD 203'WS Expected 54 +/-2 4.5 +/-0.2 -22.00 +/-0.3 -8.50 +/-0.1 -22.00 +/-0.3 54 +/-2 4.5 +/-0.2 Response As Found ,L5.Response 3 F1"5s __ -__ 2._ _0 5 _, _ 2- )As Left ---Response __..Mid Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34'WD 34'WS 30'T 199' AT 30'DP 203'WD 203'WS Expected 270 +/-2 22.35+/-0.2 10.00 +/-0.3 0.00 +/-0.1 10.00 +/-0.3 270+/-2 22.35 +/-0.2 Response _As Found q .,9 R esponse _,_-____.*__

2 ..2-,__._As Left ---Response Full Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34'WD 34'WS 30'T 199'AT 30' DP 203'WD 203'WS Expected 486 +/-2 40.5 +/-0.2 42.00 +/-0.3 8.50 +/-0.1 42.00 +/-0.3 486+/-t2 40.5 +/-0.2 Response As Found '~.)L .-& ~ '1.Response __\__01 6__As Left -Response Mumrar 6 Trettel, Inc. -600 Fint Bank Drim, Suite A .Palazt. Jffioij .60067 9 (847) 963-9000

---J Cna er 45 Exelon Contract Number 455465~j rn E10 7110 R-2E Page 7 of 7 System Response Check Date: ___(____l Site: Braidwood System: Control Room Indicators Low Scale 34' WS 203' WS 34' WD. 203' WD 34' T 199' AT 30' DP Check Expected Response 10 +/-1.0 10 +1.0 54 +/-2 54 +/-2 -7.60 +/-1.0 -8.00 +/-1.0 -7.6 +/-1.0 As Found Response i15 Ii 00_ _ --O- .0 -:.- UQ As Left -Response Mid Scale 34' WS 203' WS 34' WD 203' WD 34' T 199' AT 30' DP Check Expected 50 +/-1.0 50 +/-1.0 270 +/-2 270+/-2 50.00 +/-1.0 0.00+/-1.0 50.0 +/-1.0_Response As Found Response 2§)As Left I I Response .....Full Scale 34' WS 203' WS 34' WD 203' WD 34' T 199' AT 30' DP Check Expected 90 +/-1.0 90 +/-1.0 486 +/-2 486 +/-2 107.60 +/-1.0 8.00 +/-1.0 107.6 +/-1.0 Response _.As Found Z )g Response 00 As Left -Response _______--W.., % 1i* -1 Murna7 & Tictt4 inc. -600 First Bantk Drive, Suite A.- Palatnre, IlUinis -600672W (84 7) 963.9000 Exelon Contract Number 455465 Braidwood Meteorological Calibration Date: // '9/f E4 7/10 R-28 Page 1 of 7 POWER SUPPLIES+15.OOOV +/- 0.150V U A:,+ j9iet v B:*+ al c/' 2V-]Signal Conditioners I Digital Recorder:-15.000V+/-

0.150V A:- I/T.110 V B:- 1,O z-q v Signal Conditioner Voltage Out .Diaital recorder Specifications AF AL AL EQUIV PIRCP LO OL) V PRCPHI ()0() V WSZERO ,01 V WS SPAN L' 1) V.0 ZERO /( /& V WDSPAN 5.o/ V TLO ,o13 V T HI 5. 00- V THI-LO ,q__V DP LO d398 v DP HI V DP HI-LO V-- V-- V 0O 0C)1,0'-).AF..... AL 3 ft .40,~ it -F, i-ac) , -F 34 ft-V 0.Z-6 mph-V 1_'a. _ mph-v W7-30 0 /I--2 (L. ZO -V ,t& Z.o

• z-V___v'-1q.,7-

--V /Z11.7 0-V 0. "3 mph _-_mph/O0, mph -mph* 0. z -IZ_, -0 Sihnal Cond.O.OOOV i 0.050V 5.OOOV + 0.050V 0.015V +/- 0.025V 5.OOOV +/- 0.025V 0.000V +/- 0.100V 5.OOOV +/- 0.100V 5.OOOV +/- 0.050V 5.OOOV +/- 0.050V Recorder AL EQUIV +/- 0.01" AL EQUIV +/- 0.01" AL EQUIV +/- 0.1mph AL EQUIV +/- 0.1mph AL EQUIV +/- 19 AL EQUIV +/- 10 AL EQUIV +/- 0.1°F AL EQUIV +/- 0.1 0 F AL EQUIV +/- 0.1 0 F AL EQUIV +/- 0.1°F).q, &I.-0 203 f t .WS ZERO , 41:5' V V O.3 mph mph __mph WSSPAN /,qL8G V Coo V 14D. mph it.'J mph ___mph WDZERO, 0 d V -V __V _ 9__a.. o -a WD SPAN 3,, 6ZZ V v 5Yz,37 2-* -0 ATLO -1ThV -V -'i*'_, o 2> 0 o n~H , '5-9 v -v '3,6 o__.___ -°AT HI + ?o V V V NT HI -LO 0Z!ýV -- V 0.015V +/- 0.025V 5.OOOV +/- 0.025V 0.000V +/- 0.100V 5.OOOV +/- 0.1OOV 5.OOOV + 0.200V AL EQUIV +/- 0.1mph AL EQUIV +/- 0.1mph AL EQUIV +/- 10 AL EQUIV +/- 10 AL EQUIV +/- 0.1 0 F AL EQUIV +/- 0.1 0 F M U Murrayl & Trettel, inc. .600 First Bank Driue, Stsite A. P,,/,'tine.

iUinis .(847) 963.9000 Exelon Contract Number 455465 E5 7/10 Braidwood Meteorological Calibration R-28 Page 2 of 7 Date: TOWER MEASUREMENTS F_] Ambient @ Ice Bath Measured Recorded Difference Specification 30 ft. Amb.AF AL 3R. Oo°F -F 3ZI OF O °F+ aI)_°F -F+/-0.5 0 F Temperatures 199 ft. AT AF AL 0.010 OF -OF 10, 0 °F -OF ,tO OF O .F+/-0.180F Winds 30 ft. dew point AF AL 33.0 °F --_OF_z.vZFeF -OF-.-1 5'F -OF+/-2.70F 34 ft.AF AL WS stallbt -30(2 mph £L-ýmph Forw.

0 Revr, WDI 4. lkC"0 -Tracking/wear t'iL 203 ft.AF AL 0.1- mph O.$ mph/Y2> o -Specification 0.3mph +/- 0.45mph 30/3630 +/- 50 1830 +/- 50)'30 ( >Comments: WL5 i wAv,1ir n rr ,~) o5-p~~~- /', -SAc i3/4-MT 1,1,a4 /If ~ -r 6? / 3,t'ElMurray & Trettel, Inc. -600 FiTst Bank DNov, Suite A -Palatine, llifnois.

6006 72'1 (84 7) 963-9000 AnL iiai Exelon Contract Number 455465 E6 7110 Braidwood Meteorological Calibration R-28 Page 3 of 7 Date: I- -1I-IL[i Dates of Lest Wind Sensor Bearing Replacements:

34 ft.- 203 ft.[i (6 mos.) Wind Speed: 1 203 ft.[1 (12 mos.) Wind Direction:

21 -1" I I 130 ft. 199 ft.Aspirators:

00__. OIL.EOperation of De-ice Heat Lamp System (Aug-Mar):

L)L g (3si L- A M4-.Operation of Rain Gauge: O Tips Poured ." Tips Recorded 2f Debris screen: In Out Installed UPS Check; 6 K5, Tower Liqhtihq Good Fair Poor Tower Condition Good Fair Poor Beacon Paint I "D " Side lights 12 i7 i"i Wiring f ~Flasher [ E E Shelter condition I] E D Note: Calibration Instruments:

Next Cal Due AF = As Found Psychrometer-S/N -I r'elt 2/01Z AL = As Left Digital multimeter -S/N -933 6A AxI L 2011'--- = no change (AF=AL) Digital multimeter

-S/N -FS = FII Scale echnicians:

li11 Ne'4vtj0I4 I. ILV 14A.40_Comments:

V q'Itlq 00-, 'r Ft- c).! tý Tký-. 1-4 Clieec L~qort(A5E e)Lt)..e2iAe!

1(u- "V. C -1.C t4J~ L IThi A -F i Lo0Ljex CIO -HL oe 6~ 3'Signature:

Mura=7 & Tiettel, Inc. 600 Fint Bank Drive, Suite A. Palatine, Tllinoi,

• 60067 9 (847) 963.9000 Exelon Contract Number 45S46S E7 7110 R-28 System Response Check Page 4 of 7 Date:___________

Site: Braidwood System: Microtel Low Sca 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check Expected 10.0 +/-0.4 10.0 +/-0.4 54 +/-2 54 +/-2 -7.60 +/-0.5 -8.00 +/-0.18 -7.60 +/-0.5 Response As Found Response .As Left -Response Mid Scale 3 WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check Expected 50.0 +/-0.4 50.0 +/-0.4 270 +/-2 270 +/-2 50.00 +/-0.5 0.00 +/-0.18 50.00 +/-0.5 Response As Found q7)Response '1". ___ 70 _;t__O As Left .... -"-"- -Response ,_.Full Scale III Checke 34' WS 203' WS 34' WD 203' WD 30' T 199' AT 30' DP Check IIIIEII Expected Response 90.0 +/-0.4 90.0 +/-0.4 486 +/-2 486 +/-2 107.60 +/-0.5 8.00 +/-0.18 107.60 +/-0.5 As Found L/t t -Response qo. 7(. L/ , _,_____ _-__/. _______As Left ...Response i-1i ft 11-41-11 Murray & Tretýl, Inc.

• 600 First Bank DNue, Suite A .Patarne, Illinois .60067 W (847) 963.9000 Exelon Contract Number 455465 E8 7/10 R-28 Page 5 of 7 System Response Check Date: ! i --/" / I Site: Braidwood System: Process Computer-English Units Low Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 10.0 +/-0.4 54 +/-2 10.0 +/-0.4 54 +/-2 -7.60 +/-0.5 -8.00 +/-0.18 -7.60 +/-0.5 0.10 +/-0.01 Response As Found Response /jI O.As Left Response --3 , Mid Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT 30' DP Precipitation Expected 50.0 +/-0.4 270 +/-2 50.0 +/-0.4 270 +/-2 50.0 +/-0.5 0.00 +/-0.18 50.0 +/-0.5 0.50 +/-0.01 Response________________________

As Found .Response 4 ? -" .2-.-2 LiT,7 LO7/, L-I,-As Left --- ----.Response Full Scale Y4011 Y4012 Y4013 Y4014 Y4015 Y4016 Y4017 Y4019 Check 34' WS 34' WD 203' WS 203' WD 30' T 199' AT. 30' DP Precipitation Expected 90.0 +/-0.4 486 +/-2 90.0 +/-0.4 486 +/-2 107.60 +/-0.5 8.00 +/-0.18 107.60 +/-0.5 0.90 +/-0.01 Response As Found -j 89____ _____ o(Response 9, 25? 914 C),9 0i l"" As Left ---.-- -Response _ --L/'V& .9 Mu,'ay &' Tretel, Inc.

• 600 First Bank DriNt Suite A. Palatine, Illinois

• 60067 2 (847) 963-9000 An Exelon Contract Number 455465-- E9 7/10 R-28 System Response Check Page 6 of 7 Date: 1(M. U Site: Braidwood System: Process Computer -Metric Units Low Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34' WD 34' WS 30' T 199' AT 30' DP 203' WD 203' WS Expected 54 +2 4.5 +/-0.2 -22.00 +/-0.3 -8.50 +/-0.1 -22.00 +/-0.3 54 .2 4.5 -0.2 Response As Found Response A l.l ,- I 4 ,- ,- , 5,q , S- ,5-As Left " Response __ _ ____"- _Mid Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34' WD 34' WS 30' T 199' AT 30' DP 203' WD 203' WS Expected 270+/-2 22.35+/-0.2 10.00 +/-0.3 0.00 +/-0.1 10.00 +/-0.3 270 +/-2 22.35 +/-0.2 Response I As Found 2Z. 2-(.2el Z-Z,<Response

• 2 As Left -Response _--- __ --_ _ -_ _ _ , ___ _"--" Full Scale Y4000 Y4001 Y4002 Y4003 Y4004 Y4005 Y4006 Check 34' WD 34' WS 30' T 199' AT 30' DP 203' WD 203' WS Expected 4 + .'Response 4 8-6 t2 rO4-.-+/-kO.2 42.00 +/-0.3 8.50 +/-0.1 42.00 +/-0.3 486 +/-2 "O .Z tO.As Found Response ___,___- L(S 1 9 z ,I ." As Left ._.-- L Response I -.L.ATL h-;t)- i i Muiray & Tretel, Inc. .600 Fiut Bank DNe, Suite A .Palatine, Illinois .60067 2 (84 7) 963.9000 r~ ~WIND =Exelon Contract Number 455465-- El0 7110 R-28 System Response Check Page 7 of 7 Date: I( -(' /Site: Braidwood System: Control Room Indicators Low Scale 34' WS 203' WS 34' WD 203' WD 34' T 199' AT 30' DP Check Expected 10+/-1.0 10+/-1.0 54 +/-2 54 +/-2 -7.60 +/-1.0 -8.00 +/-1.0 -7.6 +/-1.0 Response As Found Response 10 10 ___-_ ___- ._As Left -. ---Response Mid Scale 34' WS 203' WS 34' WD 203' WD 34' T 199' AT 30' DP Check Expected 50 +/-1.0 50 +/-1.0 270 +/-2 270+/-2 50.00 +/-1.0 0.00 +/-1.0 50.0 +/-1.0 Response*As Found Response --7 C51 5-Z .J7D As Left I -I -- I Response -- .Full Sca 34' WS 203' WS 34' WD 203' WD 34' T 199' AT 30' DP Check Expected 90 1.0 90 +/-1.0 486 +/-2 486 +/-2 107.60 +/-1.0 8.00 +/-1.0 107.6 +/-1.0 Response,, As Found Response 9 _ 90C 1 (0 0 L 1"6 ¶s'.O As Left -Response _______ _______ _ __ _ _ _ ________ ______6a-t t Ie 1-69& Tretel, Inc. -600 First Bank Drip, Suite A .Palatine, Illinois .60067 9 (847) 96..9;000