U-604171, Annual Radioactive Effluent Release Report

Annual Radioactive Effluent Release Report

ML14127A018
Person / Time
Site:	Clinton
Issue date:	04/24/2014
From:	Taber B Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
U-604171
Download: ML14127A018 (105)

Text

A Exelon Generation, Clinton Power Station 8401 Power Road Clinton, IL 61727 U-604171 1 0CFR50.36a April 24, 2014 Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461

Subject:

Clinton Power Station 2013 Annual Radioactive Effluent Release Report Exelon Generating Company, LLC (Exelon), Clinton Power Station is submitting the 2013 Annual Radioactive Effluent Release Report. This report is submitted in accordance with Technical Specification 5.6.3, "Radioactive Effluent Release Report," and covers the period from January 1, 2013 through December 31, 2013.There are no commitments contained in this letter.Questions on this letter may be directed to Mr. Rick Bair, Chemistry Manager, at 217-937-3200.

Respectfully, B. Keith Taber Site Vice President Clinton Power Station DRA/bIf Attachment cc: Regional Administrator

-NRC Region III NRC Senior Resident Inspector

-Clinton Power Station Office of Nuclear Facility Safety -Illinois Emergency Management Agency I I I I I i U I I I I I U I I i i I U I Exekon..Nuclear 01 January 2013- 31 December 2013 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT CLINTON POWER STATION -DOCKET NUMBER 50-461 Prepared by: Clinton Power Station-- page 1 of 104 --

TABLE; OFCONTENTS SECTION 1 3 4 5 6 8 9 10.TITLE Executive Summary Introduction Suppl1emental.Information Radioactive Effluent Data Solid Waste Disposal Information Dose Measurements and Assessments ODCM Operational Remedial Requirement Reports Metdorological Data and Dispersion Estimates ChangeS'to Radioactive Waste Treatment Systems Corrections to Data Reported in Previous' Reports PAGE 5 6 12 17 27 30 41 42 102 103-- page 2 of 104 --

LIST.OF TABLES .TABLE NUMBER TITLE PAGE Gaseous Effluents

-Summation of All Releases 17 1

• 1A Air Doses Due to Gaseous Releases 18 S1B Doses to a Member of the Public Due to Radioiodines, 18 Tritium and Particulates in Gaseous Releases 2 Gaseous Effluents

-Nuclides Released 19 3. Radioactive Gaseous Waste LLD Values 20 4 Waterborne Effluents

-Summation of All Releases 22 5 Waterborne Effluents

-Nuclides Released 23 6 Radioactive Liquid Waste LLD Values 24 7 Solid Waste and Irradiated Fuel Shipments 28 8 Maximum Offsite Doses and Dose.Commitments to. Membersof the 31 Public In Each Sector 9 Calculated Doses to Members of the- Public During Use of. the Road in the Southeast Sector within the CPS Site Boundary Calculated Doses to. Members.of the Public During Use.of the 10 Agricultural Acreage in the South-Southwest Sector within the CPS 35 Site Boundary 11 Calculated Doses to Members of the Public During Use of Clinton 36 Lake in the Northwest Sector within the CPS Site Boundary Calculated Doses to Members of the Public During Use of the 12 Department of Natural Resources Recreation Area in the East- 37 Southeast Sector within the CPS Site Boundary Calculated Doses for the Residents in the Southwest Sector within the 13 38 CPS Site Boundary 14 Calculated Doses for the Residents in the West-Southwest Sector 39 within the CPS Site Boundary 15 Calculated Doses for the Residents in the South-Southeast Sector 40 within the CPS Site Boundary 16 Meteorological Data Availability 43 17 Classification of Atmospheric Stability 44 18 Joint Wind Frequency Distribution by Stability Class 45-- page 3 of 104 --

LIST OF FIGURES FIGURE TITLE PAGE NUMBER 1 CPS Airborne Effluent Release Points 7 2 CPS Waterborne Effluents Release Pathway '8 3 Effluent Exposure Pathways 11 4 Areas Within the CPS Site Boundary Open to Members of the Public. 33-I-- page 4 of 104 --

SECTION 1 EXECUTIVE

SUMMARY

The Annual Radioactive Effluent Release Report is a detailed description of gaseous and liquid radioactive effluents released from. Clinton Power Station [CPS] and the resulting radiation doses for the period of 01 January 201'3 through 31 December 2013. This report also includes a detailed meteorological section providing weather history of the surrounding area during this period.- This information is used to calculate the offsite dose to our public...: The report also includes a summary of the amounts .of radioactive material contained in solid waste that is packaged and shipped to a federally approved disposal/ burial facility offsite. Additionally, this report notifies the U.S. Nuclear Regulatory Commission

[NRC] staff of changes totCPS's Offsite Dose'CalCulation" Manual [ODCM]and exceptions to the CPS effluent monitoring program that must be reported in accordance with ODCM Remedial Requirements 2.7.1.b and 3.9.2.b.The Report also includes a summary of events that are to be included per ODCM Remedial Requirements.

The NRC requires that nuclear power facilities be designed, constructed, and operated in such a manner as to maintain radioactive effluent releases to unrestricted areas As Low As Reasonably Achievable

[ALARA]. To ensure compliance with this criterion, the NRC has established limitations governing the release of radioactivity in effluents.

During 2013, CPS operations were well within these federally required limits.The maximum annual radiation dose delivered to the inhabitants of the area surrounding CPS -due to radioactivity released from the station -was 2.65E-02 [or 0.027] mrem. The radiation dose to the public in the vicinity of CPS was calculated by using the concentration of radioactive nuclides from each gaseous effluent release coupled with historical weather conditions.

The dose from CPS gaseous radioactive effluents was only a small fraction of the limit for the maximum exposed member of the public. There were no liquid effluent releases in 2013. As such, there was no dose received by the public from the liquid radioactive effluent pathway.-- page 5 of 104 --

SECTION 2 INTRODOCTION CPS is located in Harp Township, DeWitt County approximately six (6) miles east of the city of Clinton in east-central Illinois.

CPS is a -1,140 megawatt gross electrical power output boiling water reactor. Initial fuel load commenced in September of 1986 with initial criticality of the reactor occurring on 27 February 1987. Commercial operation commenced in April 1987 and the reactor reached 100% power for the first time on 15 September 1987.CPS releases airborne effluents via two (2) gaseous. effluent release points to the environment.

They- are the Common. Station Heating, Ventilating, and Air Conditioning

[HVAC] Vent and the Standby Gas Treatment System [SGTS] Vent [see Figure ,1]. Each gaseous effluent release point is continuously monitored through a surveillance program ofrperiodic sampling and analysis as specified in the ODCM.CPS is licensed to release radioactive liquid effluents in a batch mode, however there were no radioactive liquid releases in 2013 at CPS. Each release would have been sampled and analyzed prior to release. Depending upon the amount of activity in a release, liquid effluents would.vary from 10 to,.300 gallons per minute [GPM]. This volume is then further combined with both Plant .Service Water flow [a minimum of approximately 5,000 GPM] along with Plant Circulating Water flow [0 to 567,000 GPM]in the seal well, just prior to,' entering the 3.4 mile' discharge flume into' Lake Clinton[see Figure 2].Processing and Monitoring

.CPS strictly controls effluents to ensure radioactivity released to the environment is maintained ALARA and does not' exceed federal release limit criteria.Effluent controls include the operation of radiation monitoring systems within the plant as well as an offsite environmental analysis program. In-plant radiation monitoring systems are used to provide a continuous indication of radioactivity in effluent streams.Some are also used to collect particulate and. radioiodine samples: Radioactive effluent related samples are analyzed in a controlled, laboratory environment to identify the specific concentration of those radionuclides being released.

Sampling and analysis provides for a more sensitive and precise method of determining effluent composition to complement the information provided by real-time radiation monitoring instruments.

Beyond the plant itself, a Radiological Environmental Monitoring Program[REMP] is maintained in accordance with Federal Regulations.

The purpose of the REMP program. is to assess the radiological impact on the environment due to the operation of CPS. Implicit in this charter is the license requirement to trend and assess radiation exposure rates and radioactivity concentrations that may contribute to dose to the public. The program consists of two phases; pre-operational and operational.

During the pre-operational phase of the program, the baseline for the local radiation environment was established.

The operational phase of the'program.

includes the objective of making confirmatory measurements to verify that the. in-plant controls for the release of radioactive material are functioning as designed.

Assessment of the operational impact of CPS on the environment is based on data collected since initial criticality of the reactor.--page 6 of 104--

Figure 1 CPS AIRBORNE EFFLUENT RELEASE POINTS HVAC Exhaust Vent SGTS Exhaust Vent Release Point Height (feet) 200 200 Building Height (feet) 190 190 Release Point Geometry Duct Pipe Release Point Area (ft 2) 120 2 Release Point Diameter (feet) 12* 1 Annual Average Flow Rate (ft 3/sec) 3452 75 Vertical Exit Velocity (feet/sec) 29 38* Effective 2(A/ir)2 diameter I-- page 7 of 104 --

Figure 2 CPS WATERBORNE EFFLUENTSRELEASE PATHWAY PLANT SE RW BLDG.(UP ID R s RDW LIQUID RADWASTE DISCHAGE LIKE A0CE WATER (AT LEAST 5000 GPM)! i m I , 010-60 OR 60-M0 GPMRADIATION MONITOR.AUSLflRUn sETP2TCmALCUwwwBAE ON EAgg W=TC IORMOPI MMY$S~i4ISOLATON VALVE t=;8 JLJSE ROW RAEORLOW.OLIUf01 FLOW P-97 SEALWELL;0 COMPOsE SAMPLER uCCl-crS kPPOaU.Y 20 rd, MWUEFOR MO=fWY MALS I I I ,I I I I I I,, P L. ANT CIRCULATING WATER (0-667.000 GPM).LAKE CLINTON U I U I I 3 I I I I i I--.-I -.-I DISCHARGE FLUME 3.4MILES-- page 8 of 104 --

Exposure Pathways A radiological, exposure pathway, is the vehicle by which the public may become exposed to radioactivity released from nuclear facilities.

The major pathways of concern are those that could cause the highest calculated radiation dose. These pathways are determined from the type and amount of radioactivity released, the environmental transport mechanisrm, .and. how-,the, plant environs -are -used (i.e., residence, gardens, etc.). The transport mec'hanism includes the historical meteorological characte.ristics of the area that are defined by wind spoeed and wind direction.

This informaition s-used to. evaluate-how the radionuclides will be distributed within the surrounding area. The most important factor in evaliuating the exposure pathway is the use of the environment by the public living-around CPS.Factors such as location of homes in the area, use of cattle for milk, and the growing of gardens for vegetable consumption are important considerations when evaluating exposure pathways.

Figure 3 illustrates the effluent exposure pathways that were considered.

, The radioactive gaseous effluent exposure pathways include direct radiation, deposition on plants and soil, and inhalation by animals and humans. The radioactive liquid effluent exposure pathways include fish consumption and direct exposure from Clinton Lake. .-, ..-,.:', .. ,.,~~-- ----------------. ..L!*' ,,.. ,.:, ':: ....;,. '*. ,.. t*-. .*::,-..- ..:.:,'Dose Assessment , r~~~~ ~ .<'.::,;,:,..,-.

Whole body radiation involves the exposure of all organs in the human body to ionizing radiation.

Most naturally occurring'background raVliqt' ion exposures consist of whole body exposure although specific organs can 4ad'i'atiori eipo sure from distinct radionuclides.

These radionuclid~s

body-:through,, inhalation and ingestion.

dfferent organs depending

',ond' ther.iucllde.::

',For example, radioacti~ve::ioqdJne selectively concentrates in the thyroid, radioactive cesium collects in:muscle-anOiJlvef.tissuue, and radioactive sirontium in mineralized bone.The total dose to organs from a given radionuclide also depends on the amount of activity in the organ and the amount" of time that the radionuclide remains in the body. S6me radionuclides remain for..ýry.

short periods of time due to their rapid radioactiv~e decay and / or blimination f~ate from the body, while others may remain longer.Radiation dose to the, public in the area surroubding CPS is calculated for each release using historical weather conditions coupled with the concentrations of-radioactive material presen.t.

The doe.E is calculated for all sixteen geographical sectors surrounding-CPS ard. includesthe.

location of! the nearest, resid.ents,, yegetabie gardens,'

iO0odici'-ri broad leaf vegetables and dairy, animals in all sectors. The calculatedld'ose-also.'uses tlte scientific concept of a "maximum exposed individual" and"standard man:",I atidthe maximum use factors for the environment, such as how much milk an average person consumes and how much air-a person breathes in a year.Section 6 contains more detailed information on dose to the public.-- page 9 of 104 --

'I Gaseous Effluents Gaseous effluent radioactivity released from'CPS is classified into two (2)categories.

The first category is noble gases. The second category consists of 1-131, 1-133, H-3, C-14 and all radionuclides in particulate form with radioactive half-lives greater than eight (8) days. Noble gases -such as xenon and krypton -are biologically and chemically non-reactive.

As such, these radionuclides

-specifically Kr-85m , Xe-133 and Xe-135 -are the major contributors to external doses. Halogens 1-131 and I-133, H-3, C-14 and radionuclides in particulate form with radioactive half-lives greater .3 than eight (8) days are the major contributors to internal doses.I Liquid Effluents Liquid effluents may originate fromf two (2) sources at CPS. The first is effluent3 from the Radioactive Waste Treatment

,.System.

This water is demineralized.prior to release. Samples are taken after the tank-has been allowed to adequately recirculate.

The second is from heat exchanger leaks found in closed cooling water systems that i service radioactively contaminated systems. This would be considered an abnormal , release. As a'matter of station management commitmnent, CPS strives to be a zero (0)radioactive.liqu idrelease plant. The last liquid release obcurred in September of 1992.Solid Waste Shipments 3 To reduce the radiation exposure to personnel and maintain the federally required ALARA concept, the NRG and the Department'of Transportation.

[DOT] have i established limits on the types 9f-r dioactive waste .and the amount of radikactivity thatI may be packaged and shipped'"0ffite.

for buriil[ or', disposal.

To ensure"'Ihat CPS is.-complying with these regulations,.i:dhe,types, of waste and the radioactivity.'-

present are" *reported to, the N RC.pag .,.0 of 10},. .. .....:!, .* " .: .....I* " ": .: :: " '.. .,' .: ... , "'" .. I , .. ..

.... 04 -3 FIGURE 3 EFFLUENT EXPOSURE PATHWAYS RLEASES DILUTED BY ATMOSPHERE AIRBORNE ANIMALS RELEASES CLINTON POWER (MILK, MEAT) PLUME EXPOSURE STATION SAND INHALATION CONSUMED W BY PEOPLE LIQUID RELEASES PEOPLE 1:7 RELEASES CONSUMED DILUTED CONSUMED KBY PEOPLE BY LAKE BY ANIMALS t El CONSUMED DATRNKN BY PEOPLE WATERo FISH SHORELINE v t-- page 11 of 104 --

!SECTION 3 SUPPLEMENTAL INFORMATION

1. REGULATORY LIMITS 3 The NRC requires nuclear power facilities to *be designed, constructed and operated in such a way that the radioactivity in effluent releases to unrestricted areas are kept ALARA. To ensure these criteria are met, each license authorizing nuclear reactor operation includes the Offsite'Dose Calculation Manual [ODCM] governing the release of radioactive effluents.

The ODCM designates the limits for release of I effluents, as well as the limits for doses to the general public from the release of radioactive:

liquids and gases. These -limits are taken from Title: 10. of the Code of Federal Regulations, 'Part 50, Appendix I (1OCFR50 Appendix I), Title 10 of the Code ofI Federal Regulations, Part 20.1301 (10CFR20.1301) and Section 5.5.1 'of our Station's Technical Specifications' Mainfaining efflue'nt releases ' withi'n'-

these operating limitations-'demon~strates compliance with ALARA principles.

These'limits are just a fraction of the dose limits established by the Environmental Protection Agency [EPA]found within Environmental Dose Standard Title 40, Code of Federal Regulations, Part 190 [40CFR190].

The EPA has-established dose limits for members of the public in the vicinity of a nuclear power plant. These dose limits are:- -I-Less than or equal to .25 mrem per year to the total body. 3 Less than or equal to 75 mrem per year to the thyroid.Less than or equal to 25 mrem per year to any other organ. I Specific limit information is given below. 3 A. Gaseous Effluents 1. The maximum permissible concentrations for gaseous effluents shall not exceed the values provided within Section 5.5.4.g of Station Technical Specifications.

To ensure these concentrations ate not exceeded, dose rates due to radioactive materials released in gaseous effluents from the site to areas at and beyond the site area boundary shall be limited to the following:

a. Noble gases"- Less than or equal to 500 rnrem/year to the total body. U Less than or equal to 3,000 mrem/year to the skin.b. 1-131, 1-133, H-3, C-14, and all radionuclides in particulate form with radioactive half-lives greater than eight (8) days: 3 Less than or equal to 1,500 mrem/year to any organ.I-- page 12 of 104 --3

2. In accordance with Title 1.0 o.f.the Code of Federal Regulations, Part 50, Appendix I, (10CFR50 Appendix I) air dose due to noble gases released in gaseous effluents to areas at and beyond the site boundary shall be limited to the following:

a..3.b.Less than or equal to 5 mrad for gamma radiation, and less than or equal to 10 mrad for beta radiation during any calendar quarter..Less than or equal to .10 mrad for gamma radiation and less than or equal to 20-mrad for beta radiation during any calendar year..In accordance with Title 10-of the Code of Federal Regulations,, Part 50, Appendix I, (10CFR50 Appendix 1), dose to a member of the public.,(from 1-1-31, 1-133, H-3, C-14, and al-. radionuclides in particulate form with radioactive, half-lives greater than eight (8): days), ingaseous effluents released to areas at and beyond the site boundary shall be limited-to the following values: a. .Less than or equal to 7.5 mre.m to. any organ, during any calendar -quarter..

.., .Less than or .equal, to 15 -mrem .to -any organý, during any calendar year.b.B. Liquid Effluents 1. The concentration of radioactive material released in liquid effluents to unrestricted areas shall be limited to:.the values provided within Section 5.5.4.b of Station Technical Specifications for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to 2.OE-04 pCi/ml total activity..2. ,The dose or dose commitment to a member of the public from radioactive materials.in liquid.effluents, released.

to, unrestricted areas shall be limited.t o : a. Less than or equal to 1.5 mrem to the. total body and less than or equal to 5 mrem to any organ during any calendar quarter. -.-Less than ,or. equal to 3 mrem to the total body and less than or equal to 10 mrem to any organ during any calendar year.* :b.-- page13 of104 --

I II. AVERAGE ENERGY The CPS ODCM limits the dose equivalent rates due' to the- release of fission and activation gases to less than or equal to 500 mrem per year to the total body and less than or equal to 3,;000, mrerr per. year to the skin. These limits arerbased on dose calculations using actual isotopic Concentrations from. our effluent release streams and not based upon the gross count rate- from our-monitoring systems. Therefore, the average beta and gamma energies [E] for gaseous effluents as described in Regulatory Guide 1.21, "Measuring, Evaluating, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants", are not applicable.

I-, I .: ......* ."I I'.I I* '--page 140'1 104-- ,5 III. MEASUREMENT AND APPROXIMATIONS OF TOTAL RADIOACTIVITY A. Fission and Activation Gases Gas sample's are collected weekly and are counted on a high purity germanium detector (HPGe) for, principal gamma emitters.

.,.The HVAC and SGTS release points are continuously monitored and the average release flow rates for each: release point are used to calculate the total activity released during a given time .period.B. lodines Iodine is continuously collected on a silver zeolite cartridge filter via an isokinetic sampling assembly from each release point. Filters are normally exchanged once per week and then analyzed on an HPGe system. The average flow rates for each release point are averaged over the duration of the sampling period and these results -along with specific isotopic concentrations

-are then used to determine the total activity released during the time period in question.C. Particulates Particulates are continuously collected on a filter paper via an isokinetic sampling assembly on each release point. Filters are normally exchanged once per week and then analyzed on an HPGe system. The average flow rates for each release point are averaged over the duration of the sampling period and these results -along with specific isotopic concentrations

-are then used to determine the total activity released during the time period in question.D. Tritium Tritium is collected by passing a known volume of the sample stream through a gas washer containing a known quantity of demineralized water. The collected samples are distilled and analyzed by liquid scintillation.

The tritium released was calculated for each release point from the measured tritium concentration, the volume of the sample, the tritium collection efficiency, and the respective stack exhaust flow rates.E. Gross Alpha Gross alpha is analyzed routinely for the gaseous effluent pathway and is analzed for when liquid effluents exist. Weekly gaseous particulate media is composited for offsite vedor analysis.

Gross alpha activity greater than vendor LLD values are assigned to the applicable timeframe and gaseous volume released.F. Carbon-14 Carbon-14 release values were estimated using the methodology included in the Electric Power Research Institute (EPRI) Technical Report 1021106, using the 2013 Clinton Power Station specific parameters of normalized Carbon-14 production rate of 5.049 Ci/GWt-yr, a gaseous release fraction of 0.99, a Carbon-14 carbon dioxide fraction of 0.95, a reactor power rating of 3473 MWt, and equivalent full power operation of 312.12 days.-- page15 of104 --

I G. Liquid Effluents Each tank of liquid radwaste is recirculated for at least two (2) tank volumes, sampled, and analyzed for principal gamma emitters prior to release. Each sample tank is recirculated for a sufficient amount of time prior to sampling, ensuring that a representative sample is. obtained.

Samples are then. analyzed on.an HPGe system and liquid release permits. are generated based upon the values obtained from the isotopic analysis and the most recent. values for H-3, gross alpha, Fe-55, Sr-89 and Sr-90. An aliquot based on release volume is saved and added to composite containers.

The concentrations of composited isotopes and the volumes of the releases associated with these composites establish the proportional relationships that are then utilized for calculating the total activity released for these isotopes.H. :Description of Error Estimates Estimates of -measurenent and analytical error for gaseous and liquid effluents are calculated as follows:;... (E +!.(-,T 2) n.. " where: ET total percent error, and Ej.I..EN = percent error due to calibration standards, laboratory analysis, instruments, sample flow, etc., IV. ABNORMAL RELEASES , , A. Liquid.1. Number of Releases 0 1 2. Total Activity (Ci) Released 0 ..B. Gaseous 1- Numberof Releases 0 .'2. Total Activity (Ci) Released 0 ..V. ODCM Revisions 3 There were no changes to the Offsite Dose Calculation Manual in 2013.,. 16 of 1--..page 16 of 104 --3 SECTION 4* RADIOACTIVE EFFLUENT.

DATA TABLE 1 GASEOUS EFFLUENTS

-Summation Of All Releases...Data Period: 01 January 2013-. 31 December 2013 Continuous Mixed- Mode Units Quarter: 1 " " Quarter 2 Quarter-3 Quarter*4'" Est.Total Error, %A. Fission & Activation Gases 1. Total Release Ci 2.01 E+00 2.69E+00 2.87E+00 0.OOE+00 30 2. Average release rate for period jiCi/sec 2.58E-01 3.42E-01 3.61 E-01 0.OOE+00 3. Percent of * * " .ODCM Limit _ _______B. lodines 1. Total Iodine-131 Ci 7.16E-06 0.OOE+00 0.OOE+00 9.18E-06 31 2. Average release rate for period iCi/sec 9.21E-07 0.00E+00 0.00E+00 1.16E-06 3. Percent of %ODCM Limit* * * *C. Particulates

__________

1. Particulates with ]half-lives

>8 days Ci 1.63E-05 1.43E-05 0..0E+00 8.11E-05 24 2. Average release rate for period jCi/sec 2.09E-06 1.81E-06 O.E+00 1.02E-05 3. Percent of ODCM Limit % * * *4. Gross alpha Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 radioactivity D. Tritium 1. Total Release Ci 7.13E+00 6.34E+00 8.05E+00 4.99E+00 21 2. Average release rate for period gCi/sec 8.06E-01 1.01 E+00 6.28PE-01 9.16E-01 3. Percent of % I ., ODCM Limit %E. Carbon-14 1. Total Release Ci 4.01 E+00 4.05E+00 4.27E+00 2.66E+00 2. Average release Rate for period jCi/sec 5,27E-01 5.26E-01 5.48E-01 3,42E-01 U I Applicable limits are expressed in terms of dose.report.See Tables 1A and 1B of this-- page 17 of 104 --

TABLE 1A Air Doses Due to Gaseous Releases Doses per Quarter ....Type of ODCM. 1st %.of 2 d % of 3 rd %of 4 th %of" Radiation.

..Limit. Quarter :Limit Quarter. Limit Quarter ..Limit. Quarter Limit Gamma 5 mrad 9.28E-05 1.86E-03 1.25E-04 2.49E-03 1.33E-04 2.66E-03 0.OOE+00 0.OOE+00 Beta 10 mrad 3.27E-05 3.27E-04 4.39E-05 .4.39E-04 4.69E-05 4.69E-04 0.00E+00.

0.00E+00 Doses per Year Type of. ODOM Typeof DCM Year % Of Limit'Radiation' Limit Year o Gamma 10 mrad .3.50E-04 3.50E-3 Beta 20 mrad 1.24E-04' 6.1BE-04 TABLE l B Doses to a Member of the-Public Due :to;Radioiodines, Tritium, Carbon-14, and Particulates in Gaseous Releases Dose r Quarter Type of ODCM Quarter %bf. Quarter: % of. *Quarter % of Quarter % of organ Limit. 1 Limit 2 Limit 3 Limit 4 Limit-Bone 7.5 mrem 7.09E-03 9..45E-02 7.17E-03 9.56E-02 7.54E-03 1.01E-01 4.71E-03 6.28E-02 Liver 7.5 mrem 1.18E-04 1.57E103 1.04E-04 1.39E-03 1.32E-04 1.77E-03 8.30E-05 1.11E-03 TBody 7.5 mrem. 1.53E-03 2-04E-02 1.54E-03 .2.05E-02 1;64E-03 2.19E-02 1.,04E-03 1.39E-02 Thyroid 7.5 mrem 1.42E-04 ..1.89E-03 1.04E-04 .1 ..39E-03 .1.33E-04 1.77E-03 1.1.3E-04 1.51E-03 Kidney 7.5 mrem 1.18E-04 i.57E-03 1.04E-04, .1.39E-03 1.33E-04 1.77E-03 8.26E-05 1.1OE-03 Lung 7.5 mrem 1.17E-04 1.57E-03 1.04E-04.

.1.39E-03

,1.33E-04 1.77E-03 .8:26E-05 1.10E-03 GI LLI 7.5 mrem 1.19E-04 1.58E-03 1..06E-04

.1.42E-03

.1'33E-04 1.77E-03 8.76E-05 1.17E-03 I I I I I I I!I I I I I I Doses per Year Type of ODCM Year'. % of Organ Limit Limit Bone 15 mrom 2.65E-02.

1.77E-01 Liver 15 mrem 4.37E-04 .2.92E-03 TBody 15 mrnem 5.75E-03 .3.83E-02 Thyroid 15 mrem 4.92E-04 3.28E-03.Kidney 15 mrem. 4.37E-04 2.91 E-03 Lung 15 mrem 4.37E-04 2.91 E-03 GI LLI 15 mrem 4.45E-04 2.97E-03 All dose calculations were performed using the met hodology.contained in the. CPS ODCM, with the exception of dose due to C-14, which was calculated using methodology included in the EPRI.Technical Report 10211.06.

The doses were determined using the 2013 critical receptor.

The critical receptor was an adult in the North sector at 1.50 km.-- page 18 of 104 --

TABLE 2 CLINTON POWER STATION GASEOUS EFFLUENTS

-Nuclides Released YEAR: 2013 Mixed Mode Release X Elevated Release Ground-Level Release IContinuous Mode x x Batch Mode Units Quarter Quarter Quarter Quarter A. Fission Gases[1] 1[2] 2[2] 3[2] 4[21 Ar-41 Ci 2.01 E+00 2.69E+00 2.87E+00 <LLD Kr-87 Ci <LLD <LLD <LLD, ,<LLD Kr-88 Ci <LLD <LLD <LLD .. <LLD Xe-133 Ci <LLD <LLD <LLD <LID Xe-1 33m Ci <LLD .<LLD <LLD <LLD Xe-135 Ci <LLD .<LLD. <LLD <LLD Xe-1 38 Ci <LLD <LLD <LLD <LLD Total for Period Ci 2.01 E+00 2.69E+00 2.87E+00 <LLD B. lodines [1-131 Ci 7.16E-06 <LLD <LLD 9.18E-06 1-133 Ci 1 __47E_05.

<LLD -<ILLD <LLD 1-135 Ci <.LLD .LD: <LLD <LLD Total for Period Ci 2.19E-5 <LLD <LLD 9.18E-06 C. Particulates

[1]Cr-51 Ci <LLD <LLD <LLD 4.92E-05 Mn-54 Ci 1.62E-05 <LLD <LLD 2.14E-05 Co-58 Ci <LLD <LLD <LLD <LLD Fe-59 Ci <LLD ...<LLD <LLD <LLD' "Co-60 Ci '<LLD <LLD <LLD 1.05E-05 Zn-65 Ci <LLD <LLD <LLD <LLD.Sr-89 Ci <LLD 1. 43E-05' .<LLD. <LLD Sr-90 Ci <- <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD Cs-1 34 Ci <LLD <LLD <LLD <LLD Cs-1 37 Ci <LLD <LLD <LLD <LLD Ce-1 41 Ci <LLD <LLD <LLD <LLD Ce-1 44 Ci <LLD <LLD <LLD <LLD Gross Alpha Ci <LLD <LLD <LLD <LLD Total for Period Ci 1.62E-05 1.43E-05 -<LLD 8.11 E-05 D. Tritium [1]Total for Period Ci 7.12E+00 6.34E+00 I 8.05E+00 4.99E+00 E. Carbon-14 L1]Total for Period Ci 4.01 E+00. 4.05E+OO 4.27E+00 *2.66E+00 (1] Ten (10) times the values found in 10CFR20 Appendix B, Table 2', Column 1 are used for all Effluent Concentration Limit [ECL] calculations.

For dissolved and entrained noble gases, the concentration is limited to 2.OOE-04 pCi/cc total activity.(2] The lower the valueof the actual sample activity'-

with respect to background activity -the :greater the counting error. Proportionally, large errors are reported for the various components of CPS gaseous effluents because of their consistent low sample activity.ODCM required LLD values are listed in Table 3. All analyses met the required LLD's..1.... -- page 19 of 104 --

TABLE 3: RADIOACTIVE GASEOUS WASTE LLD VALUES TYPE OF AcTiVITY ODCM Required' Lower ANALYSIS Limit of Detection (LLD) a (ACi/cc)Principal Gamma. Emitters, .[Noble Gases] b,c H-3 _<1.00E-06 1-1,31 <1.00E-12

-d 1 3 .<'1.00E-10 Principal Gammna Emitters,[Particulates]

b,e Sr-89, Sr-90 f .. .!1.00E-11 Gross Alpha f <1.00E-1 1 I I I U I U I I I i U I I I Table 3 Notations aThe .,,Lower Limit of Detection (LLD) as defined for purposes 'of these specifications, as an "a priori" determination of the smallest concentration of radioactive material in a sample that will yield a net count -above system background

-that will be detected withl a95% probability and with a low (5%) probability of incorrectly concluding that a blank observation represents a "real" signal. -For a particular measurement system, which ,may include radiochemical separation:

4.66 sb LLD =E -V -.2.22 X ý 0 6,.. y -e AA.t-- page 20 of 104 --

Table 3 Notations, (continued)

Where: LLD is the "a. priori" lower limit of detection as defined above, as pCi per unit mass or volume, Sb is the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate, in counts per minute (cpm), E is the counting efficiency, in counts per disintegration, V is the sample size in units of mass or volume, 2.22E+06 is the number of disintegrations per minute (dpm) per microcurie, Y is the fractional radiochemical yield, when applicable,?, is the radioactive decay constant for the particular radionuclide (sec-1)and At for plant effluents is the elapsed time between the midpoint of sample collection and the time of counting (sec).Typical values of E, V, Y, and At should be used in the calculation.

The LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not as an a posteriori (after the fact) limit for a particular measurement.

bThe principal gamma emitters for Which the LLD specification applies include the following radionuclides:

Kr-87, Kr-88, Xe-133, Xe-133m, Xe-135, and Xe-138 in noble gas releases and Mn-54, Fe-59, Co-58, Co-60, Zn-65, Mo-99, 1-131,'Cs-134, Cs-137, Ce-i41, and Ce-144 in iodine and particulate releases.

This list does not mean that only these nuclides are to be considered.

Other gamma peaks that are identifiable

-together with those of the above nuclides -shall also be analyzed and reported in the Radioactive Effluent Release Report.C Weekly grab sample and analysis dContinuous charcoal sample analyzed weekly e Continuous particulate sample analyzed weekly fComposite particulate sample analyzed monthly-- page 21 of 104 --

TABLE 4 WATERBORNE EFFLUENTS

-'Summation Of All Releases Data Period: 01 January 2013 through 31 DeOcember 2013 There were zero (0) liquid radwaste releases from CPS in 2013.I I I I I____ ____ __ ___ ___ a~rerj t~urte Est.Units Quarter Quarter Quarter Quarter Total..,__ __ 1 ..2 :_3 .. .._4 " Error, %A. Fission & Activation Products 1. Total Release Ci 0.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 N/A Average diluted 2. concentration during uiCi/ml 0.00E+00 0.00E+00 0.OOE+00 0.OOE+00 period ........_" Percent of. ODM Limit. o .,N/A N/A N/A N/A 3 .L im it,: '. ,, ..B. Tritium '_'__..,_

__,_ _, 1. Total Release Ci. 0.OOE+00 0.OOE+00 0.OOE+00 0.OOE+00 N/A Average diluted ..,: ' ;.2. concentration during. pCi/ml. 0.OOE+00.

0. 00E+00 O.00E+00 0.00E+00 pe riod __.. ....___ __,_... ......Percent of ODCM N/A N/A N/A N/A F Limit : __C. Dissolved and Entrained:Gases

1. Total Release .Ci 0.OOE+00.

0.00E+00'.

0.OOE+00 O.OOE+00 .N/A Average diluted 2. concentration during gCi/ml 0.00E+00 o.o0E+0o 0.OOE+00 0.OOE+00 .p e rio d" ': ..,- ." ...-' " ' -.. ..,.Percent of ODCM N/A N/A N/A N/A I L im it' -.-. ., .,. _"_ __" D. Gross Alpha Radioactivity.'.

E Gross alpha Ci I 0I00 0 I 000E00 O.OOE+O I radioactivity i.. 0.0+ 00E0 .+ 0____SE. Volume of.Waste :... o: +o: :Ol Released (prior to Liters 0.00E+00 0.OOE+00 ..OE+00 .00E+00 N/A Dilution)

.. , ., F. Volume of dilution it l 0,E+00 N/A I water used during period Liters

• 0.00E+00 0.00E+00 I00 O0E+00 1 /U I I I I I I I I-- page 22 of 104 --

TABLE 5 .WATERBORNE EFFLUENTS

-.NuclidesReleased

[1]...Data Period:. 01 January 2013 -31. December 2013 All Modes There were zero (0).liquid radwaste releases from :CPS in 2013.Continuous Mode IBatch Mode I X I Nuclide Units Quarter 1: Quarter 2 Quarter 3 Quarter 4 A., Tritium H-3 'Ci 6.00E+'00 0.60E+06 I 0.00E+00 F 0.00E+00 I B. Fission and Activation Products Sr-89 Ci 0.OOE+00 0.OOE+00 0.00E+00 O.00E+00.Sr-90 Ci 0.O0E+00 0.OOE+00 0.00E+00 0.OOE+00 Cs-134 Ci 0.00E+00 0.00E+00 0.OOE+00 0.00E+00 Cs-137 Ci 0.00E+00 *0.00E00.

0.OOE+.00 0.OOE+00 1-131 Ci 0.00E+00 0.00E+00 0.OOE+00 :0:.OOE+00 Co-58 'Ci 0.00E+00.

0.OOE+00 0.00E+00.

.'00E+00 Co-60 Ci 0.00E+00 0.00E+00 0.00E0+00 0.00E+00 Fe-59 Ci 0.OOE+00 0.OOE+00 0.00E+00 0.00E+00 Zn-65 Ci 0.OOE+00 0.OOE+00 0.00E+00 0..00E+00-Mn-54 Ci 0.OOE+00 ..0.00E+00 0.OOE+.0O' 0.OOE+00 Cr-51 Ci: 0.00E+00'.'

0.30E+00 O.OOE+-00 O.OOE+00 Zr/Nb-95 Ci O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 Mo-99 Ci :,O.OOE+06 o.OOE+O0 ' 0-0'OE+00.

O.OOE+00 Tc-99m Ci O.OOE+00 O.OOE+00 0.OOE+00 O.OOE+00 Ba/La'- 140 Ci 0.OOE+00 .: O.OOE+O0 0.00E+00 0.00E+00 Ce-141 Ci O.OOE+Q0 O.OOE+00 O.OOE+00 O.OOE+00 Ce-144 Ci 0.OQE+00 0.OOE+00 0.0OE+ý00

'O.OOE+O0

..Total L ci O.OOE+00 O.OOE,+00 0.00E+00 O.OOE+O0 C. Dissolved and Entrained Noble Gases _Xe-133 Ci 0.0OE+00 0.00E+00 0.OOE+00 0.OOE+00 Xe-135 : Ci 0.00E+00' 0.00E+00 0.00E+00 0.OOE+00 Total I Ci I O.OOE+00 I O.OOE+00 I O.OOE+O0 I O.OOE+O0[1] A value corresponding to ten times the. values found- in 1OCFR20 Appendix 'B, Table 2, Column 2 are used for all Effluent Concentration Limit (ECL) calculations.

For dissolved and entrained noble gases, the concentration is limited to 2.OOE-04 pCi/ml total activity.-- page 23of104 --

TABLE 6 RADIOACTIVE LIQUID WASTE LLD VALUES TYPE OF ACTIVITY ANALYSIS 'ODCM Required 'Lower Limit of Detection (LLD) a (gCi/ml)Principal Gamma Emitters b <5.00E-07 1-131 1.00E-06 Dissolved and Entrained Gases (Gamma <1.00E-05 Emitters) c H-3 ...1.00E-05 Gross Alpha 1.00E-07 Sr-89, Sr-90 <5.00E-08 Fe ' <1.00E-06 Table 6 Notations The Lower Limit of Detection (LLD) as defined for purposes of these specifications, as an "a priori" determination, of the smallest concentration of, radioactive material in a sample :that will yield a net count -above system background 7 that will be detected with a 95% probability and with only a 5% probability of falsely concluding that a blank observation represents a "real" signal.For a particular measurement system, which may include radiochemical separation:

I I I I U I I I I I I I I I I I 4.66 *sb LLD =E

• V *2.22 x 106

• Y

• e-AAt Where: LLD is the "a priori" lower limit of detection as defined above, as pCi per unit mass or volume, Sb is the standard deviation of the background counting rate or of the counting rate of a blank sample as appropriate, in counts per minute (cpm),-- page 24 of 104 --

Table 6 Notations (continued)

E is the counting efficiency, as counts per disintegration, V is the sample size in units of mass or volume, 2.22E+06 is the number of disintegrations per minute (dpm) per microcurie, Y is the fractional radiochemical yield, when applicable,? is the radioactive decay constant for the particular radionuclide (sec-1)and At for plant effluents is the elapsed time between the midpoint of sample collection and the time of counting (sec).Typical values of E, V, Y, and Xt should be used in the calculation.

The LLD is defined as an a priori (before the fact) limit representing the capability of a measurement system and not as an a posteriori (after the fact, MDA)limit for a particular measurement.

b The principal gamma emitters for which the ILLD requirement applies include the following radionuclides:

Mn 5 4 , Fe", Co5, CO0, Zn 6 , Mo , Cs 1 3 4 , Cs , Ce 1 4 1 , and Ce 1 4 4 shall also be measured, but with an LLD of 5.OE-06. This list does not mean that only these nuclides are detected and reported.

Other gamma peaks that are measurable

-together with those of the above nuclides -shall also be analyzed and reported in the Radioactive Effluent Release Report.cDissolved and entrained gases are: Xe'3 3 , Xe 1 3 5 , Xe 1 3 8 , Kr85m, Kr 7 and Kr 8 8.-- page 25 of104 --

BATCH RELEASES There were zero (0) liquid radwaste releases from CPS in 2013.A. Batch Liquid Releases:

2013 1. Number of batch releases:

.0: 2. Total time period for batch releases:

N/A 3. Maximum time period for batch release: N/A 4. Average time period for batch release: N/A 5. Minimum time period for batch release: N/Aj 6.,. Average stream flow duringperiods of release: N/A 7. Total waste volume: N/A 8. Total dilution volume'...

N/A B. Batch Gaseous Releases:

2013 1. Number of batch releases:

0 2. Total time period for batch releases:

'N/A-3. Maximum time period for batch release: N/A 4. Average time period for batch release N/A 5. Minimum time period for batch release: N/A-- page 26 of 104 --

SECTION 5 SOLID WASTE DISPOSAL.

INFORMATION During this reporting period -01 January 2013 through 31 December 2013 -there were Seventeen (17) radioactive waste shipments and zero (0) irradiated fuel shipments from CPS. In addition, the CPS ODCM requires reporting of the following information for solid waste shipped offsite during the above reporting period: 1. Container volume: Class A Waste: 6.66E+02 m 3 /Class B Waste: 0.0 m 3 / Class C Waste: 0.0 m 3 This total includes Dry Active Waste (DAW), resins, filters, evaporator bottoms, waste sludge.2. Total curie quantity:

Class A Waste was 2.61E+02 curies and-Class B Waste was 0.0 curies (determined by dose-to-curie and sample concentration methodology estimates) and Class C Waste was 0.0 curies in 2013.3. Principal radionuclides:

See A.2 for listing of measured radionuclides.

4. Source of waste and processing employed:

Dry Active Waste (DAW), resins, filters, evaporator bottoms, waste sludge 5. Type of container:

Type A and Strong Tight Container.

6. Solidification agent or absorbent:

None.-- page 27 of 104 --

Tible ..SOLID WASTEý AND IRRADIATED:FUEL SHIPMENTS A. Solid Waste Shipped Offsite for Burial or Disposal:

[NOT irradiated fuel]1. Types of Waste Typ s o WateTotal Total' Est.Quantity Activity Period Total___._.-.__

__. _ ..___.(m_),..-.. (C i) Error, %a. Spent resins, filter sludges, 4.75E+01 2-.61 E+02 Jan-Dec 25 evaporator bottoms,.

etc. , 4..... 1 21._*_2013

b. Dry compressible waste, 6.19E+02 4.56E-01 Jan-Dec 25 contaminated equip, etc. 2013 c. Irradiated components, control 0.OOE+00 0.00E+00 Jan-Dec 25 rods, etc. 1 2013 d. Other 0.00E+00 0.00E+00 Jan-Dec" 25 2013 2. Estimate of major.nuclide composition (by type of waste)Major Typeof Waste Nuclide %Composition

a. Spent resins, filter sludges, evaporator bottoms, etc.C-14 0.96 Mn-54 3.78 Fe-55 83.69 Co-60 10.07 Ni-63 0.58 Zn-65 0.45 Other 0.47 b. Dry compressible waste, contaminated equip, etc.Mn-54 43.95 Fe-55 25.74 Co-60 28.42 Ni-63 0.43 Zn-65 1.03 Other 0.43 c. Irradiated components, control rods, etc. N/A N/A d. Other N/A N/A I I I I I I I U I I I I I-- page 28 of 104 --

Table 7 SOLID WASTE AND IRRADIATED FUEL SHIPMENTS

[continued]

3. Solid Waste Disposition January -June 2013 Number of Shipments Mode of Transportation Destination 5 Hittman Transport BarnweilProcessing Facility 1 Hittman Transport Duratek/Gallaher Road Facility 10, Hittman Transport Energy Solutions

-Bear Creek Hittman Transport Energy Solutions LLC -Clive___Disposal Facility B. Irradiated Fuel Shipments (Disposition)

Number of Shipments Mode of Transportation Destination 0 i ,, N/A N/A C. Changes to the Process Control Program No changes were made to the Process Control Program during 2013.-- page 29 of 104 --

I SECTION 6 DOSE MEASUREMENTS AND ASSESSMENTS i This section of the Annual Effluent Release Report provides the dose received by receptors around CPS from gaseous and liquid effluents.

The dose to the receptor I that would have received the highest :dose in each sector (defined as the :Critical Receptor for that sector) is listed within -this report. This section also provides the dose to individuals who were inside the Site Boundary.

This section also summarizes CPS's compliance with the requirements found within 40CFR190.The 2013 maximum expected annual dose from Carbon-14 released from CPS I has been calculated using the methodology included in the EPRI Technical Report 1021106 using the maximum gross thermal capacity maintained for 312.1 days of.equivalentffull, power operation.

I The assumptions used in determining dose values are as'follows:

• All receptors within a five ..(5) mile radius are included in the Annual Land Use Census. This Annual. Census determines what dose, pathways are present as. wel.l as the distance' of each receptor from the site. 3* The annual average meteorological

'data -for 2013 was used in conjunction with the Annual Land Use Census to determine the dose to each receptor within five (5)miles.* The doses for each. receptor from each sector were determined using methodologies given in the ODCM, with the exception of dose due to C-14, which I was calculated using methodology included in the. EPRI Technical Report 1021106." The %occupancy -factor was taken into consideration by calculating..the dose to..individuals using areas inside the. Site Boundary in non-resi.dential areas. The occupancy factor is determined by dividing, the number Of hour[s] of occupancy per year, (taken from the ODCM) and dividing that Value by the total number of hour[s] I per year." Dose to individuals using areas inside the Site Boundary (that are not residences) 3 was calculated using the Ground Plane and Inhalation pathways".

Ip'" I--pg 3 f10-!

TABLE .8 MAXIMUM:OFFSITE DOSES AND DOSE COMMITMENTS TO MEMBERS OF THE PUBLIC IN EACH SECTOR Data Period: 01. January 2013- 31 December,201!3 This table illustrates the dose that a member, from the public* would most likely be: exposed to from radioactive.

effluents in each sector from CPS. These values represent the maximum doselikely to expose a member of the public in each sector.RECEPTOR INFORMATION AIRBORNE EFFLUENT DOSE WATERBORNE Iodine and. Particulates (mrem) ..Noble Gases EFFLUENT DOSE 6 (mrad) .(mrem) 1 Sector Distance Pathways Organ Age Total Body Skin Organ Gamma .Beta Total Organ (km) Body N 1.50 GP, I, M, V B A 5.71 E-03 2.23E-05 2.65E-02 2.75E-04 9.68E-05 0.00E+00 0.00E+00 i NNE 3.76.GP, I, W B A 2.82E-03 7.37E-06'1.36E702 1.90Ew04 6.71 E-05 NE 6.98 ..GP, I, V B A 5.60E-04 1.88E'-06:

2.29E-03 7.86E-05 2.77E-05 ENE 2.86 GP, I, V B C 1.42E-03 6.53E-06 6.04E-03 1.17E-04 4.13E-05 E 1.67: : G ,,,. V.* B A 1.42E-03 .1.84E-05 5.77E03:.

.1.97E-04 6.95E-05 ESE 5.14 GP,;I, V B A 8.49E-04 4.89E-06 3.47E-03 1.19E 4.19E-05'SE 7.11 GP, I B C 8.14E-04 2.36E-06 3.45E-03 6.70E-05 2.36E-05 SSE 4.52 .. GP, I, V. B C 7.63E-04 ..3.01E-06.

3.23E-03 6.27E-05 2.21E-05 S 6.60. GP, I, M, V B ;A 9.77E-04 1.63E-06 4.55E-03 4.71E-05 1.66E-05 SSW 4.68' GP, I B A' 7.21E-05' 2.26E-06 2.28E-04 5.85E-05 2.06E-05 SW 5.87 GP, I, V B C 8.62E-04 1.64E-06 3.65E-03 7.1OE-05 2.50E-05 WSW 5.53" GP, I,V, M B A 1.06E-03 .,1..45E-06 4.95E-03:.

5.13E-05 1.81 E-05 W 3.22 GP, I, V B :A 4.38E-04 2.20E106 .79E-03 6.14E-05 2.l "6E-05 WNW 2.64 GP, I, V B A 6.36E-04 3.19E-06 2.60E-03 8.90E-05 3.14E-05 NW 4.70 GP, I, V B T 7.52E-04 2.68E-06 3.03E-03 1.04E-04 3.65E-05 NNW 2.05-8 GP, IM, V Bý A 4.03E-03'

.1.11 E-05 1.88E-02 ::1.94E-04 6.86E-05 Key for Table 8 GP = Ground Plane I= Inhalation M = Cows Meat V = Vegetables B = Bone A = Adult T = Teen I= Infant C = Child[1] There were zero (0) liquid radwaste releases from CPS in 2013.All doses were within all regulatory limits, including limits from 40CFR190.All dose calculations were performed using the methodology contained CPS ODCM, with the exception of dose due to C-14, which was calculated methodology included in the EPRI Technical Report 1021106.in the using-- page 31 of 104 --

I COMPLIANCE WITH 40CFR190 REQUIREMENTS Optically Stimulated Luminescent Dosimeter

[OSLD] are stationed around CPS to measure the ambient gamma radiation'field.

Monitoring stations are placed near the site boundary and approximately five (5) miles from the reactor, in locations representing the sixteen (16) compass sectors. Other locations are chosen to measure the radiation field at places of special interest such as nearby residences, meeting places and population centers. Control sites are located further than ten (10) miles from the site, in areas that should not be affected by plant operations.

The results from I the OSLDs are reported in the Annual Radiological Environmental Monitoring Report[REMP]. The results from this effort indicated no .xcess.dose to offsite areas. i Additionally, :NUREG-d543,.

METHODS FOR DEMONSTRATING LWR COMPLIANCE WITH THE EPA.URANIUM-FUEL--CYCLE.STANDARD (40 CFR PART 190) states in section IV, "As long as a nuclear plant site operates at a level below the Appendix I reporting requirements.,.

no-,.extra analysis is required to dempnstrate.compliance with 40 CFR Part 190.".' The drgan and whole body doses reported in Table 8 are determined using 10 CFR 50 Appendix I methodology.

The doses reported are I well below thelimits of Appendix;.]

DOSE TO MEMBERS OF THE PUBLIC WITHIN THE SITE BOUNDARY CPS ODCM section 7,1ý2requires tkat"the Radioactive Effluent Release Report include an assessment of the,.,'radiatiorn doses from radioactive liquidsi and gaseous effluents to MEMBERS OF "THE PLJBLI.-Ci'd'ue to their activities inside the SITE BOUNDARY.

Within Mthe CPS site boutndary"there are seven areas thatare open to members of the public as CPS ODCM Table 3.4-4 (see Figure 4): *The Department:'

of Natural Resources Recreation Area at 1.2871 kilometers (0.8 miles) in the ESE sector-A road at 0.495 kilometers (0.3 miles) in the SE sector I A residence at 2.736 kilometers (1.7 'Miles) in the SSE sector A residence at 1.219 'kilo0meters (0.8 miles) in the SW sector Agricultural acreage at 1.372 kilometers'.(0.9 miles).,in the SSW sector , A residence at..2 2414kilometers-(I..5 miles) inthe WSW sector A portion of.Clinton Lake at 0.335 kilometers (0.2 miles) in the NW sector I-I At all of the above locations, the plume, inhalation and ground-plane exposure pathways are used for dose calculations.

The '2013 Annual Land Use Census identified no other exposure pathways...

--All dose oalculations were performed using the methodology contained in the CPS ODCM, with the exception of dose due to,.C-.14, which was calculated .using methodology included in the EPRI Technical Report 1021106..3,-- page 32 of 104 --3 FIGURE 4 AREAS WITHIN THE CPS SITE BOUNDARY OPEN TO, MEMBERS OF THE PUBLIC Road 0.3 miles in SE Sector Agricultural acreage 0.9 miles in SSW Sector Clinton Lake 0.2 miles in the NW Sector Department of Natural Resources Recreation Area 0.8 miles in ESE Sector Residence 0.8 mileg in SW Sector Residence 1.5 miles in WSW Sector Residence 1.7 miles in SSE Sector-- page 33 of 104 --

TABLE 9$ ;CALCULATED DOSES TO MEMBERS OF THE -PUBLIC DURING USE-OF THE ROAD IN THE SOUTHEAST SECTOR WITHIN 'THE CPS SITE BOUNDARY Data Period: 01 January 2013 -31:December 2013 DESCRIPTION Total Body Dose Rate (Noble Gases)Skin Dose Rate (Noble Gases)Gamma.Air Dose Beta Air Dose Total Body Dose (Particulates)

Skin Dose (Particulates)

[1]DOSE 2.19E-05 3.20E-05 2.49E-05 8.79E-06 4.84E-05 2.57E-06 UNITS mrem/year m reim/year mrad m rad mrem mrem[1] DOSE includes the dose values resulting from the release of iodines, particulates (with half lives >8 days) tritium, and carbon-14 in gaseous effluents.

• Highest Organ Dose by Age Group: Adult Bone Teen Bone Child Bone Infant Bone 9.85E-05 1.40E-04 1.93E-04 1.43E-04.mrem mrem mrem mrem I I I I I I I I I I I I-- page 34 of 104 --

TABLE 10 CALCULATED DOSES TO MEMBERS OF THE PUBLIC DURING USE OF THE AGRICULTURAL ACREAGE IN THE SOUTH-SOUTHWEST SECTOR WITHIN THE CPS SITE BOUNDARY Data Period: 01 January 2013- 31 December 2013 DESCRIPTION DOSE UNITS Total Body Dose Rate (Noble Gases) 1.23E-05 mrem/year Skin Dose Rate (Noble Gases) 1.80E-05 mrem/year Gamma Air Dose 1.29E-05 mrad Beta Air Dose 4.55E-06 mrad Total Body Dose (Particulates) 2.07E-05 mrem Skin Dose (Particulates)[1 1.32E-06 mrem[1] DOSE includes the dose values resulting from the release of iodines, particulates (with half lives >8 days) tritium, and carbon-14 in gaseous effluents.

Highest Organ Dose by Age Group: Adult Bone Teen Bone Child Bone Infant Bone 5.11E-05 7.26E-05 N/A [2]N/A [2]mrem mrem mrem mrem[2] Dose calculated only for the age groups likely to be in the field.-- page 35 of 104 --

TABLE 11 CALCULATED DOSES TO MEMBERS OF THE PUBLIC DURING USE' OF CLINTON LAKE IN THE NORTHWEST SECTOR WITHIN THE CPS SITE BOUNDARY Data Period: 01 January 2013 31 December 2013 DESCRIPTION DOSE UNITS Total Body Dose Rate (Noble Gases) 1.99E-04 mrem/year Skin Dose Rate (Noble Gases) 2.92E-04 .mrem/year Gamma.Air Dose 2.08E-04 mrad Beta Air Dose 7.35E-05' mrad Total Body Dose (Particulates) 3.96E-04 mrem Skin Dose (Particulates)

[1] 1.23E-05 mremr[1] DOSE includes the dose values resulting from the release of iodines, particulates (with half lives >8 days) tritium, and carbon-14 in gaseous effluents.

Highest Organ Dose by Age Group: Adult Bone Teen Bone Child Bone Infant Bone 8.15E-04 1.16E-03 1 -60E-03 1ý.18E-03 mrem mrem mrrem m rem I I I I I I I I I I I-- page 36 of 104 --

TABLE 12 CALCULATED DOSES TO MEMBERS OF THE PUBLIC DURING:USE OF THE DEPARTMENT OF NATURAL RESOURCES RECREATION AREA IN THE EAST-SOUTHEAST SECTOR WITHINTHE CPS SITE BOUNDARY Data Period: 01 January 2013 -31 December 2013 DESCRIPTION DOSE UNITS Total Body Dose Rate (Noble Gases) 7.81 E-05 mrem/year Skin Dose Rate (Noble Gases) 1.14E-04 mrem/year Gamma Air Dose 8.15E-05 mrad Beta Air Dose 2.88E-05 mrad Total Body Dose (Particulates) 1.59E-04 mrem Skin Dose (Particulates)

[1] 9.03E-06 mrem[1] DOSE includes the dose values resulting from the release of iodines, particulates (with half lives >8 days) tritium, and carbon-14 in gaseous effluents.

Highest Organ Dose by Age Group: Adult Bone Teen Bone Child Bone Infant Bone 3.23E-04 4.58E-04 6.30E-04 4.68E-04 mrem mrem mrem mrem-- page 37 of104 --

TABLE 13 CALCULATED DOSES FOR THE RESIDENTS IN THE SOUTHWEST SECTOR WITHIN THE CPS SITE.BOUNDARY Data Period: 01 January 2013- 31 'December 2013 DESCRIPTION Total Body Dose Rate (Noble Gases)Skin Dose Rate (Noble Gases)Gamma Air Dose_Beta Air Dose Total Body Dose (Particulates)

Skin Dose' (Particulates)

[1]DOSE 1.53E-04 2.24E-04 1.61 E-04 5.67E-05 3.11 E-04 1.38E-05 UNITS mrem/year mrem/year mrad m rad mrem mrem[1] DOSE includes the dose values resulting from the release of iodines, particulates (with half lives >8 days) tritium, and carbon-14 in gaseous effluents.

Highest Organ Dose by Age Group: Adult Bone Teen Bone Child Bone Infant Bone 6.34E-04 9.03E-04 1.24E-03 9.19E-04 mrem mrem , mrem mrem I I I I I I I I I I I-- page 38 of 104 --

TABLE 14 CALCULATED DOSES FOR THE RESIDENTS IN THE WEST-SOUTHWEST SECTOR WITHIN THE CPS SITE BOUNDARY Data Period: 01 January 2013- 31 December 2013 , DESCRIPTION DOSE UNITS Total Body Dose Rate (Noble Gases) 7.72E-05 mrem/year Skin Dose Rate (Noble Gases) 1.13E-04 mrem/year Gamma Air Dose 8.12E-05 mrad Beta Air Dose 2.87E-05 mrad Total Body Dose (Particulates) 1.55E-04 mrem Skin Dose (Particulates)

.4.60E-06 mrem[1] DOSE includes the dose values resulting from the release of iodines, particulates (with half lives >8 days) tritium, and carbon-14 in gaseous effluents.

Highest Organ Dose by Age Group: Adult Bone Teen Bone Child Bone Infant Bone 3.18E-04 4.54E-04 6.25E-04 4.62E-04 mrrem mrem mrem mrem-- page 39 of104--

I TABLE 15 CALCULATED DOSES FOR THE RESIDENTS IN THE SOUTH-SOUTHEAST SECTOR I WITHIN THE CPS SITE BOUNDARY Data Period: 01 January 201,3- 31 December2013 DESCRIPTION

.DOSE -UNITS, Total Body Dose Rate (Noble Gases) 9.08E-05 mrem/year Skin Dose Rate (Noble Gases) 1.33E-04 mrem/year Gamma Air Dose, 9.55E-05 mrad Beta Air Dose 3.37E-05 -mrad Total Body Dose (Particulates) 1.83E-04 mrem Skin Dose (Particulates)

[1 5.94E-06 mrem[1] DOSE includes the dose values resulting from the release of iodines, particulates (with half lives >8 days) tritium, and carbon-14 in gaseous effluents.

Highest Organ Dose by Age Group: I Adult Bone 3.75E-04 mrem Teen Bone 5.34E-04 mrem Child Bone 7.35E-04 mrem Infant Bone 5.43E-04 mrem* , " .....page 40 of 104-SECTION 7 ODCM OPERATIONAL REMEDIAL REQUIREMENT REPORTS In accordance with CPS ODCM section[s]

2.7.1 and 3.9.2, INOPERABLE radioactive liquid and gaseous effluent monitoring instrumentation channels remaining in an INOPERABLE condition for greater than 30 days shall be reported in the Annual Radioactive Effluent Release Report.During the course of 2013, there were zero (0) instances when either a radioactive liquid or gaseous effluent instrumentation channel[s]

was INOPERABLE forgreater than any 30 day period.During the course of 2013, there were no occurances where Surveillance requirements were not met.-- page 41 of 104 --

SECTION 8 METEOROLOGICAL DATA AND DISPERSION ESTIMATES On 13 April 1972, the meteorological monitoring program commenced at the Clinton. Power Station site.. The meteorological system consists of a tower. 199 feet high with two-(2) levels of instrumentation at the 10-meter and 60-meter elevations.

A combined cup and 'vane sensor measures wind direction and wind speed[sI at the 10-meter and 60-meter levels. An aspirated dual temperature sensor senses -the temperatures at these levels. One-half of the dual sensors at each elevation are used for ambient temperature while the other half is used to provide a differential temperature between the 10-meter and 60-meter levels.Meteorological monitoring instruments have been placed on the Clinton Power Station microwave tower at the 10-meter level -to serve as a backup to the primary meteorological tower.. ..Clinton Power Station meteorological data is transmitted.

to the Main.- Control Room [MCR] via a dedicated communication link. Once the.signals are,.received .at the MCR, they are then converted to a 4 to 20 milliamp signal and fed individually to a microprocessor and chart recorders.

The microprocessor is part of the Clinton Power Station Radiation Monitoring System [RMS]. Meteorological data .is available via the microprocessors in the% Main Control Room and th'e Technical Support Center [TSC].Dispersion modeling for effluents for normal operation of Clinton Power. Station.is a straight-line, sector-averaged Gaussian plume model designed to estimate average relative concentration at. various. receptor points...

The. model was developed in accordance with routine release analysis procedures specified in Regulatory Guide.1.111. For joint frequency input data, periods of calm are distributed in accordance-with a directional distribution.

For hourly input data, periods of calm are the previous hour's wind direction.

Periods of calm are assigned a wind speed value of half the specified instrument threshold value. Reference Table 18 for more detailed information on meteorology and dispersion data.I I U I I I I I I I I I-- page 42 of 104 --

TABLE 16 METEOROLOGICAL DATA AVAILABILITY Data Period: 01 January 2013- 31 December 2013 PERCENTOF VALID PARAMETER HOURS (%)PARAMETER Quarter 1 Quarter 2 F Quarter 3 Quarter 4 1. Wind Speed _________a. 10-Meter sensor 99.9 97.9 100.0 99.8 b. 60 Meter sensor 97.1 97.9 100.0 99.8 2. Wind Direction a. 10-Meter sensor 99.9 97.9 100.0 99.8 b. 60 Meter sensor 99.9 97.6 100.0 99.8 3. Temnperature

a. 10-Meter sensor 99.9 97.9 100.0 99.8 b. 60 Meter sensor 99.9 97.9 100.0 99.8 c. Temperature Difference (10m-60m) 99.9, 97.9 100.0 99.8 4. Percent of hours for which valid 10-meter Wind Speed,.Wind Direction, and 99.9. 97.9 ,100.0 99.8 Delta Temperature were available 5. Percent of hours for which valid 60-meter Wind Speed, Wind Direction, and 97.1 97.6 100.0 99.8 Delta Temperature were available Clinton Power Station was able to achieve 99.0% Meteorological Recoverable Data during 2013 exceeding the minimum criteria of 90% as delineated within Regulatory Guide 1.23.-- page 43 of 104 --

TABLE 17" CLASSIFICATION OF ATMOSPHERIC STABILIfY Stability Classification Pasquill Category Defining Conditions Extremely unstable A --,-- <AT < -1.042 Moderately unstable B -1.042 <AT< -0.933 Slightly unstable C -0.933 <AT< -0.823 Neutral D -0.823 <AT< -0.274 Slightly stable E -0.274 <AT< 0.823 Moderately stable F 0.823 <AT< 2.195 Extremely stable G 2.195 <AT< ------AT = temperature difference in degrees Fahrenheit per 100 feet I I I I U I I I I I I I I I I I I I I: 1. .:-- page 44 of 104 --

TABLE 18 JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Reporting Period: 01 January 2013 through 31 December 2013 The following table contains the joint wind frequency tables for CPS. The tables are segregated by sensor elevation and calendar quarter. All tabled values are in hours.-- page 45 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Class -Extremely Unstable 60m-10m Delta-T Stability (F)Winds Measured at 10 Meters Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable I 1-3 4-7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 1 2 2 2 3 1 0 0 2 1 3 0 0 8-12 13-18 .19-24 > 24 2 0 0 0 0 0 0 0 3 0 0 0 3 0 0 0 3 0 0 0 2 0 0 0 3 0 0 0 3 0 0 0 4 0 0 0 1 0 0 0 0 0 0 0 1 1 0 0 1 5 3 0 4 10 11 0 5 4 4 0 4 0 0 0 0 0 0 0 Total 2 0 4 5 4 4 5 5 7 2 0 2 11 26 16 4 0 Total 0 20 39 20 18 0 97 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in stability class: 0 all stability classes: I 3-- page 46 of 104 --I TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Stability Class -Moderately Unstable -60m-10m Delta-T (F)Winds Measured at 10 Meters Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 4 0 2 5 2 2 4 12 7 5 7 12 7 20 15 9 0 Total 0 23 58 24 8 0 113 Hours of calm in this Hours of missing wind stability class: measurements in this 0 stability class: 0 all stability classes: Hours of missing stability measurements in 3-- page 47 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record:. January -March 2013 I I U I I I Stability Class '-Slightly Unstable-Winds Measured at*Wind Speed.- 60m-10m Delta-T (F)10 Meters (in mph)Wind Direction.

1-3 7 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE IE ESE SE SSE S SSW SW WSW W WNW NNW NNW Variable 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 0 3 0 3 5 3 5 1 2 0 3 6 5 4 0 10 0 1 2 0 2 0 5 5 5 2 1 6 4 7 10 0 0 0 0 0 0 0 0 0.0 0* 1 0 4 2 1 0 0 0 0 0 0 0"0 0"0 0 0 0 0'0 0 0/0 0 13 2 2 5 0 5 5 8 12 11 8 5 22 15 18 16 0 I Total 3 42 60 34 8 0 147 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:

-- page 48 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Stability Class -Neutral -60m-10m Delta-T (F)Winds Measured at 10 Meters 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 16 9 13 10 4 18 29 11 11 5 16 10 16 9 16 18 0 44 17 13 23 25 19 36 43 25 39 26 28 31 81 71 52 0 28 4 13 13 5 2 0 10 11 17 6 20 37 63 52 30 0 0 4 1 1 0 0 0 3 4 6 0 5 10 44 6 0 0 84 90 36 42 50 36 41 67 67 54 69 50 65 97 200 146 101 0 Total 30 211 573 311 2 1211 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: 3-- page 49 of104 --

TABLE 18&(continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Stability Class -Slightly Stable Winds Measur6d ati'-60m-10m Delta-T- (F)10 Meters 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 4 3 1 4 5 5 0 1 2 4 1 6 3 1 0 0 5 6 11 5 13 24 12 15 12 12 10 16 23 17 18 5 0"-8-12 13-18 2 0 2 0 0 0 0 1 4 0 2 0 12 0 18 2 29 6 24 35 15 2 11 3 16 4 18 1 8 1 3 0 0 0 19-24 0 0 0 0 0 0 0 0 0 4 0 1 0 0 0 0 0> 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0'0' "0 Total 8 12 14 7 21 31 29 35 48 77 31 32 49 39 28 8 0 Total 41 204 164 55 5 0 469 Hours of calm in this stability class:" 3 Hours of missing Hours of missing wind-measurements -in this stability measurements in stability class:.- 0 all stability classes: U 7."3-- page 50 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station , Period of Record: January -,March 2013 Stability Class -Moderately Stable Winds Measured at-60m-10m Delta-T (F)10 Meters 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 3 3 2 2 1 2 0 2 3 4 6 1 3 0 0 0 1 3 4 4 1 3 3 4 3 7 7 11 3 6 8 0 0 8-12 13-18 19-24 > 24 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 2 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 0 0 0 Total 3 6 7 6 3 4 5 4 5 12 11 18 4 9 8 0 0 Total 33 68 4 0 0 0 105 Hours of calm in Hours of missing this stability class: 0 wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3-- page 51 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Stat.ion: PeriodofRecord:

January- March 2013.Stability Class -Extremely Stable -60mm10m Delta-T (F) Winds Measured at 10 Meters Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW.W WNW NW NNW Variable Total Wind' Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total I I I I I I I U I I.0 0'0 0 0 0 0 0.0 0 0 0 0 0:0 0 O, I I U S0 12 Hours of calm in this stability class: 0: Hours of missing Hours of missing wind measurements in thi-s stability class: " 0 stability measurements'-in-all stability classes:'3 U I-- page 52 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Stability Class -Extremely Unstable -60m-10m Delta-T (F)Winds Measured at 60 Meters 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 0 0 0 0 0 0 0 0 0 0 0 0 2 13 2 0 0 2 0 2 6 5 4 6 4 7 1 1 2 13 27 12 5 0 Total 0 7 28 34 11 17 97 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: 3-- page 53 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January'-

March-'2013 Stability Class -Moderately Unstable'

-60m10m Delta-T (F).Winds Measured at 60 Meters I I U Wind Direction

-:1-3 4-7 Wind Speed (in mph):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 1 0 1 0 1" 1 2 3 5 3 1"0 1 0 2 0 0 4 0 2 4 3 2 6 9 8 5 7 12 7 22 12 10 0 I I Total 1 21 27 37 18 9 113 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in stability~class:

0, all stability classes:.3-- page 54 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY, DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Stability Class -Slightly Unstable Winds Measured at-60m-10m Delta-T -(F)60 Meters 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 0 0 1 3 0 2 1 2 5 0 0 0 2 4 2 4 0 8-12 13-18 19-24 -> 24 3 9 0 0 1 0 0 0 0 0 0 0 2 2 0 0 0 0 0 0 2 0 2 0 3 0 0 0 1 5 0 0 4 2 1 1 5 0 1 3 2 2 3 1 0 2 3 0 5 7 4 4 5 3 2 3 4 6 3 1 3 7 0 0 0 0 0 0 Total 12 1 1 7 0 6 4 8 13 10 8 5 22 17 16 14 0 Total 1 26 40 45 19 13 144 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 3-- page 55 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -.March: 2013 I I I I Stability Class -Neutral 60m-10m Delta-T (F)Winds Measured at 60 Meters Wind Speed (in mph)Wind Direction N NNE I 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 9 1 6 4 0 7 11 8 4 3 11 3 7 2 3 8 0 27 12 6 7 4 5 28 11 6 9 12 11 23 15 31 28 0 37 11 6 8 16 18 32 32 21 27 25 26 31 58 55 40 0 15 2 7 15 19 3 1 16 12 11 4 18 22 47 28 32 0 0 5 2 8 3 2 0.5 12 11 1 6 12 52 9 1* * , 0 88 31 29 42 43 35 72 73 55 61 54 64 96 177 127 i1 0 I I I I I Total 12 87 235 443 252 129 1158 Hours of calm in Hours of missing Hours of missing.this stability class: ,..*wind measurements in this-stability measurements in stability class: " 53 all stability classes: 3-- page 56 of104 --I TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Stability Class -Slightly Stable Winds Measured at Wind Speed Wind-60m-10m Delta-T (F)60 Meters (in mph)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 5 2 10 3 8 12 15 8 4 10 6 9 16 17 11 10 0 2 2 1 4 5 12 13 14 14 26 18 10 17 26 9 4 0 0 0 0 1 0 3 0 12 14 22 3 6 2 3 2 0 0 0 0 0 0 0 0 0 2 6 26 1 2 3 1 0 0 0 8 6 15 8 15 30 36 38 40 85 31 29 40 49 27 15 0 Total 3 37 146 177 68 41 472 Hours of calm in this stability class: Hours of missing wind measurements in this 0 stability, class: 0 Hours of missing stability measurements in all stability classes:; 3-- page 57 of104 --

TABLE' 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION%

BY STABILITY CLASS'Clinton Power 'Station Period of Record:' January -March' 2013 I I Stability Class -Moderately Stable Winds Measured at-60m-10m Delta-T (F)60 Meters 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 J ' 8-12 13-18 19-24 > 24 0 0 0 2 0 0 0 1 1 0 0 0 0 1 4 0 0 0 0 0 3 2 0 0 0 0 4 0 0 0 1 0 4 2 0 0 0 3 5 0 0 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 1 2 0 6 0 1 3 5 0 0 0 6 3 4 0 0 0 4 12 1 0 0 0 2 9 1 0 0 0 0 9 0 0 "0 0 2 4 0 0 0 0 0 0 0 0 0 Total 2 2 5 5 4 7 8 3 0 3 9 13 17 12 9 6 0 Total 1 20 64 20 0.0 105 Hours of calm in this stability class: 0'Hours of missing wind measurements in this; stability class: 0 Hours of missing stability measurementsin all stability classes: 3*"-- page 58 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: January -March 2013 Stability Class -Extremely Stable Winds Measured at Wind Speed Wind-60m-10m Delta-T (F)60 Meters (in mph)Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 12 Hours of calm in this stability class: 0 Hours of missing Hours of missing wind measurements in this stability class: 0 stability measurements in all stability classes: 3-- page 59 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April " June. 2013 Stability Class -Extremely Unstable -60m-10m Delta-T I I (F)Winds Measured at 10 Meters 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 4 1 0 0 0 0 0 3 1 4 1 4 10 3 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 12 12 10 3 0 9 3 17 10 6 1 9 19 18 4 0 Total 1 31 76 32 0 0 140 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: 45 I-- page 60 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April -June 2013 Stability Class -Moderately Unstable -. 60md10m Delta-T (F)Winds Measured.

at Wind Speed 10 Meters (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 Total-------------..-- ----3 2 0 0 0 0 0 0 4 13 1 3 3 5 3 0 0 8 9 6 5 4 4 10 5 19 18 8 9 10 10 9 3 0 Total 2 44 53 37 1 0 137 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: 45-- page 61 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY'DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Rec6rd:4April

-June .. 2013.Stabilit'y Class -Slightly Unstable -60t-ý10m Delta-T (F)Winds Measured at 10 Meters Wind Speed (in mph)Wind Direction N NNE 1-3 0 0 4-7 8-12 13-18 " 19-24' > 24 Total 4 6 0 3 0 0 T0 5 2 0 11* NE ENE E ESE SE SSE S SSW SW WSW W WNW NW 0 <0 0 0 0 0 0 0 3 0 0 0 8 7 3 5 0 11-0 18 0 16 0 22 I I I a I I I I I I U I a£U I U I I 0

• 0 15 0 0 1 0 1 0 0 0 4 9 8 1 8 0 20 0 10 NNW Variable Total 0 0 5 0 5 0 0 0 0 0 5 0 0 11 52 76 28.0 172 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: 45.:-- page 62 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April -June 2013 Stability Class -Neutral Winds Measured at-60m-10m Delta-T (F)10 Meters 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 14 16 23 13 15 42 31 25 22 12 11 9 6 13 9 13 0 34 27 22 20 16 9 17 31 53 51 26 34 29 17 15 20 0 421 6 8 9 2 0 0 1 2 34 27 9 14 26 13 4 3 0 158 0 1 0 0 0 0 0 0 4 1 0 5 10 0 1 0 0 22 55 54 55 38 36 52 55 67 116 91 48 65 72 45 31 39 0 Total 44 274 0 919 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 1 stability class: 0 all stability classes: 45-- page 63 of104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April -June 2013 Stability Class -Slightly.Stable;'

-60m-10m Delta-T U I I (F)Winds Measured at 10-,Meters Wind Speed (in mph)Wind birection 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 11 14 33 16 21 21 37 35 38 25 24 13 13 23 12 12 0 6 7 6 5 4 5 2 25 29 8 21 19 6 14 4 4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 20 21 45 29 34 33 46 69 76 51 50 38 22 38 19 16 0 I I I Total 68 348 165 22 4 0 607 Hours of calm in this stability class: 3-Hours of missing wind measurements in this stability class: 0 Hours of missing stability, measurements in all stability classes:,...45'I I-- page 64 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April -June 2013 Stability Class -Moderately Stable Winds Measured at-60m-10m Delta-T (F)10 Meters 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 2 2 9 4 3 3 6 2 1 2 3 6 7 3 1 3 0 1 2 5 1 2 1 5 8 4 4 2 3 7 8 3 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 1 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 0 0 0 Total 3 4 14 5 5 4 11 10 5 7 5 10 14 11 4 3 0 Total 57 56 2 0 0 0 115 Hours of calm in this stability class: 0 Hours of missing Hours of missing wind measurements in this stability class: 0 stability measurements in all stability classes: 45-- page 65 of 104 --

TABLE, 18 (continiued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power- Station Period of Record: April.- June 2013 Class -Extremely Stable -60m-10m Dc Stability Wind Directior N NNE NE ENE-E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total elta-T (F)Winds Measured at 10 Meters Wind Speed (in mph).1-3 4-7 8-12 13-18 19-24 > 24 Total I I S I I I I I U 0 7 10 4 2 1 1 3 0 1 0 1 5 0 1 2 0 38 0~0 0 0 0 0 0 0 0 0 0 0 0 0 0.o 0 0 7 14 4 2 1 2 3 0 1 2 1 5 0 1 2 0 I I I I I U 0 0 45 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability meaSurement's in all stability classes::.1 45-- page 66 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April -June 2013 Stability Class -Extremely Unstable -60m-10m Delta-T (F)Winds Measured at 60 Meters Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24, > 24 Total 3 5 12 6 2 0 3 3 8 1 1 0 1 5 6 1 0 4 5 4 1 0 0 5 1 5 6 4 1 4 7 10 2 0 7 10 16 7 2 0 8 4 18 8 6 2 6 20 19 6 0 Total 0 10 57 59 13 0 139 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: 45-- page 67 of 104 --

TABLE 18 (continued)

JOINT-WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Powe. Station Period of Record: April -June 2013 Class- Moderately Unstable -60m-10m Delta-T Stability (F)Winds Measured at 60 ;Meters Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 18 19-24 > 24 N 0 1 3 1 2 0 NNE 0 0 6 1 1 0 NE 0 0 3 3 0 0 ENE 0 4 1 0 0 0 E 0 1 4 0 0 0 ESE 0 1 2 0 0 0 SE 0 0 5 3 0 0 SSE 0 2 2 1 0 0 S 0 5 6 3 3 3 SSW 0 0 2 8 7 *1 SW 0 1 1 6 0 1 WSW 0 0 3 4 1 0 W 0 1 1 7 1 0 WNW 0 0 4 3 5 0 NW 0 2 2 2 1 0 NNW 0 0 4 2 0 0 Variable 0 0 0 0 0 0 Total 7 8 6 5 5 3 8 5 20 18 9 8 10 12 7 6 0 Total 0 18 49 44 21 -5 137 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:.45.I U-- page 68 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April -June 2013 Stability Class -Slightly Unstable -60m-10m Delta-T (F)Winds Measured at 60 Meters 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 1 1 2 1 2 0 0 0 0 0 3 2 1 2 3 2 1 2 1 2 0 4 2 1 1 0 8-12 13-18 !19-24 > 24 3 1 0 0 3 3 2 0 6 1 2 0 0 1 0 0 2 0 0 0 0 2 0 0 5 3 0 0 4 5 0 0 2 7 5 1 2 9 4 5 2 5 3 0 3 2 1 0 4 2 0 1 5 3 1 0 4 11 2 3 4 2 0 0 0 0 0 0 Total 7 10 10 3 3 5 10 11 18 23 13 8 11 11 21 7 0 Total 7 28 49 57 20 10 171 Hours of calm in this Hours of missing wind stability class: measurements in this 0 stability class: 1 all stability classes: Hours of missing stability measurements in 45-- page 69 of 104 --

TABLE.18 (continued)

JOINT-WIND FREQUENCYDISTRIBUTIONBY STABILITY CLASS Clinton Power-'Station Period of Record: April -June 2013 Class -Neutral "" 60m-10m D I I I I I Stability Wind Direction N NNE NE ENE E ESE SE-SSE.S SSW SW WSW W WNW NW NNW Variable elta-T' (F)Winds Measured at 60;Meters Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 8 3 3 2 5 7 14 8 5 4 6 6 4 4 8 2 0 17 22 17 9 5 19 25 19 15 9 12 11 10 15 10 16 0 26 19 13 12 19 22 14 17 37 45 23 32 26 12 12 18 0 5 5 13 11 6 4 1 9 40 28 6 11 20 12 3 3 0 0 1 3 1 0 0 0 2 18*8 3 8 12 3 2:0*0 57 50 50 35 35 52 55 57 117 96 50 70 72 47 37 39 0 I I I Total 14

• 89 231 347 177 61 919 I Hours of calm in Hours of missing Hours of missing this stability class: -'0 wind measurements in this stability class: 1 stability measurements in 'all. stability classes:.:45 I i-- page 70 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: April -June 2013 Stability Class -Slightly Stable Winds Measured at-60m-10m Delta-T (F)60 Meters 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 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 4 3 1 1 3 1 6 5 3 3 3 0 2 2-1 1 0 8-12 13-18 19-24 > 24 11 9 0 0 9 17 1 0 14 20 1 0 12 13 2 0 7 4 1 0 13 20 3 0 22 10 1 0 33 37 11 4 20 40 9 3 16 14 5 8 15 17 8 1 17 16 10 0 8 15 2 1 8 24 0 0 12 7 0 0 9 7 0 0 0 0 0 0 Total 25 30 36 28 15 37 39 90 75 46 44 44 28 34 20 17 0 Total 2 39 226 Hours of calm in this stability class.270 54 17 608 0 Hours of missing wind measurements -in this stability class.: 2 Hours of missing stability measurements in all stability classes: 45-- page 71 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power'Station-Period of Record: LApril. -June 2013 Class -Moderately Stable -60m-10m D II II Il Stability Wind Directior N NNE NE ENE E ESE SE SSE S SSW: SW WSW W WNW NW NNW Variable elta-T (F)Winds Measured at Wind Speed 60 Meters (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 0 2 4 2 1 2 1 2 5 1 2 2 3 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5 3 12 7 2 7 7 8 15 3 4 4 11 22 3 2 0 I U I I I I I I I I I I Total 2 21 60 32 0 0 115 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 cla'sses: '45'-- page 72 of 104 --

TABLE. 1,8 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton-.Power-Station" Period of-Record:

April June 2013 Stability Class -Extremely Stable.Winds Measured..at 60m-10m Delta-T (F)60 Meters Wir Wind Direction N NNE NE ENE E ESE SE SSE S SSW.SW WSW W WNW NW NNW Variable 1-3 4-7 1 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 1 1 4 5 1 0 0 2 0 0 1 1 0 0 id Speed (in mph)18-12 13-18 19-24 .> 24 0 0 0 -,0 0 0 0 0 4 0 0 0 1 1 0 0 2 0 0 0 4 0 0 0 2 0 0 0 2 2 0 0 0 0 0 .0 1 0 0 0 0 0 0 .0 2 1 0 ..0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 1 0 6 3 3 8 7 5 0 1 3 3 0 2 1 0 0 Total 3 ,. 17 , 19 4 0 0 43 Hours Hours of calm in this stability class:..of missing wind:,measurements -in .this 0 *stability class:.. 2 all stability classes:.Hours of missing stability.measurements-in 45-- page 73 of 104 --

TABLE 18 (continued)

JOINT-WIND FREQUENCY DISTRIBUTION BYSTABILITY CLASS Clinton Power Statibn Period of-Record:

July -September 2013 Class- Extremely Unstable -60m-10m Delta-T (F)Stability Winds Measured at 10 Meters 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 5 9 ii ii 9 19 26 22 11 6 6 4 5 12 1 0 8-12 13-18 19-24 > 24 13 0 0 0 20 2 0 0 15 0 0 0 4 0 0 0 3 0 0 0 0 0 0 0 1 0 0 0 3 0 0 0 12 1 0 0 17 3 0 0 28 0 0 0 15 1 0 -0 4 11 0 0 15 7 0 0 15 0 0 0 11 0 0 0 0 0 0 0 Total 18 31 26 15 14 9 20 29 35 31 34 22 19 27 27 12 0 Total 0 168 176 this stability class: 25 0 0 369 I Hours of calm in Hours of missing Hours of missing 0 wind measurements in this'stability class: 0-stability measurements

'in all stability classes: o0-- page 74 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BYý STABILITY CLASS Clinton Power Station Period of Record: July -September 2013 Stability Class -Moderately Unstable -60m-10m Delta-T (F)Winds Measured at 10 Meters Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 6 2 7 19 8 6 9 16 8 7 3 4 2 3 7 4 0 10 8 13 21 8 6 9 20 12 14 9 12 4 4 10 6 0 Total 1 ill 45 9 0 0 166 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-- page 75 of104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Stability Periodsof Record: July -September 2013 Class.- Slightly Unstable "- 60m'10m Delta-T Winds Measured at 1:0 Meters Wind Speed (in mph)(F)I Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE* SE SSE S SSW SW WSW W WNW NW NNW Variable 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 3 4 13 6 2 3 10 9 4 3 5 5 3 3 10 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0" 4 11 18 7 2 3 11 12 7 8 14 12 5 5 14 3 0 I Total 3 85 45 3 0 b 136 Hours of calm in this stability class: Hours of missing wind measurements in this Hours ofl:missing'st'ability measurements in 0 stability class: 0 all stability classes: I-- page 76 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station, Period of Record: July -Stability Class -Neutral Winds Measured at Wind Speed Wind September 2013-60m-10m Delta-T (F)10 Meters (in mph)Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 1 2 3 1 1 4 0 3 2 2 3 0 1 3 1 0 15 22 25 15 15 12 21 50 28 19 36 14 11 13 12 13 0 8-12 13-18 19-24 > 24 9 0 0 0 17 6 0 0 19 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 5 0 0 0 3 0 0 0 14 0 0 0 19 3 0 0 27 0 1 0 11 2 0 0 2 0 0 0 6 0 0 0 10 0 0 0 6 0 0 0 0 0 0 0 Total 24 46 47 19 16 14 30 53 45 43 66 30 13 20 25 20 0 Total 27 321 150 12 1 0 511 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-- page 77 of 104--

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Stability Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Period of Record:-July

-Class -Slightly Stable Winds Measured at Wind Speed S I September 2013-60m-.1m Delta-T *(F)10 Meters (in mph)1-3' 4-7 0 1 6 3 4 4 7 10 10 6 5 5 7 1 3 0 16 20 27 22 14 38 24 37 66 66 30 10 9 28 19 5 0 8-12 13-18 19-24 > 24 5 0 0 0 7 0 0 0 6 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 8 0 0 0 31 0 0 0 21 0 0 0 12 0 0 0 0 0 0 0 1 0 0 0 8 0 0 0 1 0 0 0 0 0 0 0 Total 21 28 39 27 18 42 31 49 84 103 56 23 14 36 28 9 0 Total 73 431 104 0 0 0 608 0 U I Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability.class:

Hours of missing stability measUrements'Kin all stability classes: 0.-- page 78 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: July -September 2013 Stability Class -Moderately Stable -60m-10m Delta-T (F)Winds Measured at 10 Meters 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 6 11 4 8 5 4 5 7 9 14 7 6 8 5 3 0 102 4 13 40 21 10 6 1 15 10 19 8 8 4 3 3 2 0 167 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 4 19 51 25 18 11 5 20 18 29 22 15 10 11 8 5 0 0 271 Hours of calm in this stability class:. 1 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0-- page 79 of104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station-Period06fRecord:--July

--September 2013 Stability Class -Extremely Stable -60mG10m Delta-T (F)Winds Measured at 10 Meters Wind Speed (in mph)Wind Direction 1-3 4-7 '8-12 13-18 19-24 > 24 Total I N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 6 20 26 4 6 1 0 0 0 0 1 1 2 1 2 3 0 0 5 53 5 1 0 0 0 0 0 0 1 0 1 6 1 0 6 25 79 9 7 1 0 0 0 0 1 2 2 2 8 4 0 Total 73 73 0 0 0 0 146 Hours of calm in this stability class,: Hours of missing wind measurements in this Hours of missing stability measurements in stabilityclass:

0 all stability classes: I 0'-- page 80 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: July -September 2013 Stability Class -Extremely Unstable -60m-10m Delta-T (F)Winds Measured at 60 Meters 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 0 1 9 5 0 0 0 8 8 9 2 0 0 4 17 7 0 -0 0 5 14 1 0 0 0 5 7 1 0 0 0 5 5 0 0 0 0 8 17 0 0 0 0 16 8 0 0 0 0 9 16 8 2 2 0 6 18 6 0 0 0 2 14 17 0 0 0 3 13 5 0 0 0 2 6 9 5 0 0 4 2 16 5 0 0 7 8 9 0 0 0 0 10 3 0 0 0 0 0 0 0 0 Total 15 27 28 20 13 10 25 24 37 30 33 21 22 27 24 13 0 Total 0 85 172 96 14 2 369 Hours of calm in this stability class: Hours of missing Hours of missing wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 0-- page 81 of 104 --

I I TABLE 18 (continued)

JOINT-WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS'Clinton Power Station.Periodof Record: July.- September 2013 Class , Moderately Unstable -60m-10m Delta-T (F)Stability Winds Measured at:60 Meters 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 12 13-18 19-24 >24 Total 2 3 5 9 7 3 11 10 2 3 0 1 1 5 6 3 0 3 3 2 10 2 3 2 8 9 3 7 8 0 0 2 2 0 0 0 3 0 2 0 0 0 0 0 0 0 0 0 0 0 1 0 0 : '0 0 .0 0 0 0 0 0 0 1 0 1 '0 0 0 8 9 13 20 9 6 13 18 14 10 10 11 3 6 10 6 0 I II I I i I Total 0 71 64 23 8 0 166:0 Hours of calm in this stability class: -0 Hours of missing wind measurements in this:stability class:-Hours of missing stability measurements in all stability-classes:

0 1-- page 82 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: July -September 2013 Stability Class -Slightly Unstable -60m-10m Delta-T (F)Winds Measured at 60 Meters 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 1 0 1 0 0 0 0 0 0 0 0 2 2 6 4 0 2 7 6 4 2 1 3 3 4 0 1 0 8-12 13-18 2 0 2 2 7 4 4 1 1 0 2 0 6 0 1 0 2 3 1 3 6 7 6 4 3 1 0 2 4 2 1 1 0 0 19-24 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0> 24 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 4 9 18 9 1 4 14 7 10 6 14 13 7 6 11 3 0 Total 2 52 48 30 2 2 136 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: Hours of missing stability measurements in all stability cl 0 asses: 0-- page83 of104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Stdtion Period of Record: July -September 2013 Stability Wind Direction N NNE.. NE ENE E ESE SE SSE S SSW SW WSW W WNW*NW NNW Variable'lass -Neutral'Winds Measured at I Wind Speed-60m-10m Delta-T 60 Meters (F)i (in mph)1-3 4-7 8-12 .13-18 19-24 > 24 0 6 9 7 0 0 1 10 11 11 2 2 1 12 16 21 1 1 0 4 13 2 1 0 1 3 11 1 0 0 1 2 11 1 0 0 1 13 16 5 0 0 3 9 38 1 0 0 0 10 18 13 3 0 1 6 23 14 3 0 2 9 29 20 0 1 0 11 10 7 1 1 0 5 10 1 0 0 0 6 s 5 0 0 0 10 8 7 0 0 1 7 10 5 1 0 0 0 0' 0 0 0 Total 22 37 52 20 16 15 35 51 44 47 61 30 16 16 25 24 0 Total 12 123 238 121 12 5 511 Hours of calm in this stability class: .0 Hours of missing wind measurements in this stability class: 0 I Hours of missing stability measurements ih all stability classes:-- page 84 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station I Period of Record:. July.-Stability Class- Slightly Stable..Winds Measured at Wind .Speed Wind September 2013.- 60m-10m .Delta-T (F)60 Meters (in mph)U I U I U I I I U I Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW.. W WNW NW NNW Variable..

1-3 4-7 0 0 1 0 0 0 2 1 0 0 0 0 0 1 0 0 0 2 4 2 1 5 2 11 12 14 3 3 3 1 5 5 4 0 8-12 13-18, 19-24 >-24 13 10 0 :0 4 12 0 0 11 13 3 0 10 11 1 0 12 10 0 0 14 6 1 0 41 4 0 0 28 12 0 0 52 25 1 0 31 52 0 0 12 44 0 0 12 12 4 .0 3 1 0 0 17 .7 0 0 14 11 0 0 8 4 0 0 0 0 0 0 Total 25 20 30 23 27 23 58 53 92 86 59 31 5 30 30 16 0 Total 5 77 .282 234 10 0 608 Hours of calm in this stability class.:*0 Hours of missing wind measurements in this stability class: Hours of .mis.sing.stability measurements in-all stability cl 0 asses: 0-- page 85 of 104 --

TABLE 118 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Periodof Record: July -September 2013 Stability C Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable flass -Moderately Stable -60m-Winds Measured at 60 Meters Wind Speed (in mph)(F)I I U 1-3 4-7 1 0 0 0 0 1 1 0 0 0 0 1 0 0 0 1 0 3 1 0 3 1 4 2 5 6 5 5 5 5 6 7 1 0"8-12 13-18 19-24 > 24 2 1 0 0 4 3 0 0 5 13 0 0 8 18 0 0 21 9 0 0 15 5 0 0 5 0 0 0 5 0 0 0 28 4 0 0 10 12 0 0 13 5 0 0 4 1 0 0 4 3 0 0 3 0 0 0 5 0 0 0 2 0 0 0 0 0 0 *0, Total 7 18 29 31 25 8 10 38 27 23 11 12 9 12 4 0 Total 5 59 134 74 0 0 272 Hours of calm in this stability class: " 0 -Hours of missing-wind measurements in this stability-class:

0 Hours of miss:ing stability measurements in all stability classes: 0--- page 86 of 104 --U

£I I U I U U U I I I I a TABLE,18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station.Period of Record: July -Stability Class Extremely Stable Winds Measured at'-Wind. Speed September..

2013..- 60m-10m Delta-T (F)60 Meters (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 0 2 6 0 0 .0 1 1 3 1 0 .0 1 2 12 8 0 0 0 4 7 16 0 0 3 4 12 14 0 0 1 4 10 4 0 0 4 5 4 0 0 0 2< 2 0 0 0 .0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 2 1 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1i 1 0 0 0 0 0 1 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 Total 8 6 23 27 33 19 13 4 0 1 3 2 0 2 1 4 0 Total 13 27 .62 44 0 0 146! 0 Hours of calm in this stability class.:.-..

.0 Hours of missing wind measurements in this stability class::..Hours of. missing stabili-ty' measurements-in all stability classes:..0-- page 87 of 104 --

.TABLE .18- (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record:.October

-:December2013 Stability Class -Extremely Unstable -60m-10m Delta-T (F)Winds Measured-at 10 Meters 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 2 2 0 0 1 5 6 5 5 3 0 0 0 0 1 2 0 8-12 13-18 19-24 > 24 3 0 0 Q 0 0 0 ">0 0 0 0 0 0 0 0 0 1 0 0 .0 0. 0 0 .0 0 0 0 0 2 0 0 .0 0 0 0 0 3 0 0 0 10 3 0 0 6 2 0 0 6 7 0 .0 1 4 0 "0 7 6 1 0 5 0 0 " 0-8 1 0 0 0 0 0 0 Total 5 2 0 0 2 5 8 5 8 16 8 13 5 14 6 11 0 I Total 0 32 52 23 1 0 108 Hours of calm in this stability, class: 0.Hours of missing wind measurements in this Hours of missing stability measurements in stability class: 0 all stability classes: 4-- page 88 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power'Station Period of Record: October -December2013 Stability Class -Moderately Unstable -60m-10m Delta-T (F)Winds Measured at 10 Meters Wind Speed (in mph)I I I U U I U I I i 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 2 5 4 6 3 3 2 0 0 8 0 0 8-12 13-18 19-24 > 24 2 1 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 2 1 0 0 2 0 0 0 12 4 0 0 7 3 0 0 7 9 0 0 5 5 3 0 5 6 1 0 4 0 0 0 4 4 0 0 0 0 0 0 Total 3 2 0 0 0 2 6 7 8 19 13 18 13 12 12 8 0 Total 0 33 53 33 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabili Hours of missing stability measurements in all sta 4 0 123 ty class: 0 bility classes: 4-- page 89 of 104 --

TABLE18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: October -December2013 Stability Wind birection N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Class iSlightly Unstable -60m-Winds Measured at 10 Meters Wind Speed (in mph)10m Delta-T (F)1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 o m 0 7 0 0 2 2 6 9 7 6 12 12 8 16 17 20 6 0 I I I U I U I U I I I I Total 2 39 49 37 3 0 130 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in thi stability measurements

': 0 " s stability class: 0 n all stability classes: 4-- page 90 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY.

DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: October -December2013 Stability Class -Neutral Winds Measured at Wind Speed-60m-10m Delta-T 10 Meters (F)(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 15 11 11 15 20 34 30 30 17 16 28 19 20 11 5 0 28 4 7 9 6 2 15 44 54 65 42 30 50 69 55 44 0 17 5 0 0 0 0 0 6 18 36 13 5 34 43 33 17 0 53 24 18 20 21 22 49 81 103 124 72 64 109 133 100 66 0 Total 8 290 524 227 7 3 1059 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4-- page 91 of 104 --

TABLE18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS, Clinton Power.Station Period of Record:,October

-December2013.Stability:Class

-Slightly Stable -60m-10m Delta-T (F)Winds Measuredat, 10 Meters Wind Speed (in mph)Wind Direction.

1-3 4-7 N 0 NNE 0.. NE 0 ENE 1 E 1 ESE 6 SE 5 SSE 5 S 4 SSW 0 SW 0 WSW 2 W 0 WNW 0 NW 0 NNW 0 Variable 0 6 4 9 6 7 17 39 33 33 20 26 18 15 32 20 4 0 8-12 13-18. 19-24 > 2.4 3 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 13 1 0 .0 28 7 0 0 79 38 3 0 24 3 0 0 7 0 0 0 8 11 0 0 28 ' 6 0 0 13 0 0 0 0 0 0 0 0 0 0 0 Total 9 4 9 7 8 23 48 52 72 140 53 27 34 66 33 4 0 I I U I U I Total 24 289 207 66 3 0 589 Hours of calm in this stability class: Hours of missing.Hours of missing wind measurements in this stability measurements.in 0 ...stability class:- 0 all stability classes:, 4-- page 92 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: October Stability Class- Moderately Stable Winds Measured at Wind Speed Wind-December2013

-60m-10m Delta-T (F)10 Meters (in mph)Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 0 1 0 0 1 4 1 1 1 3 0 2 1 0 1 0 0 2 4 11 8 2 0 5 4 3 12 14 6 9 7 10 4 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 1 0 0 0 1 0 0 0 1 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 2 5 11 8 3 4 7 6 5 17 14 8 15 7 11 4 0 Total 16 101 10 0 0 0 127 Hours of calm in this stability class: Hours of missing Hours of missing wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 4-- page 93 of104 --

TABLE. 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: October -December2013 Stability Wind Direction N NNE NE ENE E ESE SE SSE S SSW 1: SW WSW W WNW NW NNW Variable Class -Extremely Stable Winds Measuredyat

.-Wind Speed 60m-10m Delta-T (F)10 Meters (in mph)1-3 4-7 1 2 3 4 8 5 1 0 0 1 4 2 1 2 0 1 0 1 1 ii 4 0 0 0 0 1 3 3 1 1 2 4 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O0 Total 2 3 14 8 8 5 1 0 1 4 7 3 2 4 4 2 0 I I I I U I U I U I I I Total 35 33 0 0 a 0 68 Hours of calm in this stability class: 0 Hours of missing wind measurements

'in this stability:class:

0.Hours of missing stability, measurements ifnall stability classes: '4-- page 94 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: October- December2013 Stability Class -Extremely Unstable -60m-10m Delta-T (F)Winds Measured at 60 Meters 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 1 0 0 0 0 3 5 1 2 0 0 0 0 0 0 0 0 8-12 13-18 19-24 > 24 5 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 1 0 0 2 0 0 0 6 0 0 0 1 0 0 0 4 5 0 0 4 7 2 1 3 4 1 0 2 5 4 0 0 1 4 0 0 12 2 1 2 5 0 0 3 5 1 0 0 0 0 0 Total 6 1 0 0 3 5 11 2 11 14 8 11 5 15 7 9 0 Total 0 12 35 45 14 2 108 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 4-- page 95 of104 --

TABLE 1.8 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton.Power Station Period of Record: October.-

December2013 Stability Class -Moderately Unstable..

-60m-10m Delta-T I (F)Winds Measured at 60 Meters 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 2 4 2 4 2 1 1 0 0 7 0 0 8-12 13-18 19-24 > 24 1 2 0 0 2 0 0 0 0 0 00 0 0 0 0 0 0 0 0 1 0 0 0 1 1 0 0 2 2 0 0 3 0 1 0 7 10 4 0 4 3 1 0 6 4 7 0 0 7 6 .3 2 3 3 1 1 5 0 0 0 5 2 0 0 0 0 0 Total 3 2 0 0 0 3 6 6 8 23 9 18 16 9 13 7 0 Total 0 23 30 -42 .24 4 123 Hours of calm in this stability class: 0 Hours of missing Hours of missing wind measurements in this. stabili stability measurements inall s.ta ty class: .bility clas 0 ses:: 4 I I I U-- page 96 of104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY. STABILITY CLASS Clinton Power Station Period of Record:.October

-December2013 Stability Class ý Slightly., Unstable Winds Measured at ,Wind Speed Wind-60m-10m Delta-T 60 Meters (in mph)(F)Direction N NNE NE ENE.E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 -.4-7 8-12 18 19-24.". >24 Total 0 0 0 0 0 0 1.0 0 1>1 1 1 6 0 0 2 1 7 10 4 10 12 10 10 15 16 19 8 0 Total 1 22 .30 47 25 5 130 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. stabilityclasses:

• : 4-- page 97 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY' CLASS Clinton Power Station Period of Record: October Stability Class -Neutral Winds Measured at Wind Speed-December2013 60m-10m Delta-T (F)Meters (in mph)13-18 '19-24 > 24 Total Wind Direction N 1NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW.NW NNW Variable 1-3 4-7 12 9 10 8 8 6 15 35 19 29 17 16 27 35 25 19 9 0 26 1 3 14 7 7 16 37 44 53 36 24 46 56 49 49 0 12 2 0 1 2 0 0 16 23 27 12 4 27 36 27 9 0 0 0 0 0 0 0 0*2 18 6 1 1 3 3 1 0 0 50 22 13 25 20 24 56 80 116 108 73 62 117 123 101 69 0 I Total 3 68 287 468 198 35 1059 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in'0'stability class: 0, all stability classes':4--- page 98of104 --

TABLE. 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY, STABILITY CLASS Clinton Power Station Period.of Record: October Stability Class. " Slightly Stable ,Winds Measured at Wind Speed Wind-December2013

-60m-10m Delta-T. (F)60 Meters (in mph)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 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 2 5 1 2 2 1 1 3 1 0 0 0 ,8-12 13-18. 19-24.. -> 24 3 7 0 0 2 1 0 '.0 1 1 0 0 3 8 0 0 2 5 0 0 6 3 0 ,0 31 16 0 .0 25 30 6 0 10 30 22 9 7 49 60 8 10 36 8 0 7 15 0 .0 14 9 9 .2 18 33 16 0 17 19 0 .0 9 1 0 0 0 0 0 0 Total 10 3 3 11 9 11 52 62 73 126 55 23 37 68 36 10 0 Total 1 20 .. 165 263 121 19 589 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class:. 0 Hours ofrnmissing stability mea.surements in all stability classes:-,4-- page 99of104 --

TABLE 18. (cOntinued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power 'Station I Period of Record: October December2013 Stability Class -Moderately Stable -601i-10m Delta-T (F)W Winds Measured at' ý60 Meters Wind Speed (in mph)Wind Direction 1-3 4-7. 8-12 13-18 19-24 > *24 N 0 0 0 4 0 0-NNE 0 0 0 0 0 0 NE 0 0 7 1 0 0 ENE 0 0 1 7 0 0 ,E 0 0 2 5 0 0 ESE 0 0 0 2 0 0 SE 0 4 2 2 0 0 SSE 0 0 2 6 0 0.S 0 0 0 3 1 0.SSW 0 0 1 8 0 0 SW 0 0 5 12 0 0 WSW 0 1 3 8 0 0.W 0 0 4 6 0 0 WNW 0 1 4 4 2 0 NW 0 1 9 4 0 0 NNW 0 1 2 2 0 0 Variable 0 0 0 0 0 0 Total 4 0 8 8 7 2 8 8 4 9 17 12 10 11 14 5 0 Total 0 8 42 74 3 0 127 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements'in 0 stability class: -0.all stability.

las ses:: -4 I I-- page 100 of 104 --

TABLE 18 (continued)

JOINT WIND FREQUENCY DISTRIBUTION BY STABILITY CLASS Clinton Power Station Period of Record: October Stability Class -Extremely.

Stable..Winds Measured at Wind Speed Wind-December2013

-60m-10m Delta-T.(F) 60 Meters (in mph)I I U I U U I I I U I Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W.WNW NW NNW Variable Total.1-3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4-7 0 0 1 0 0 1 0 0 0 0 1 0 1 2 0 0 0 8-12 .13-18 19-24 > 24 0 .3 0 0 1 1 0 0 0 2 0 0 1 8 0 0 0 7 0 0 2 0 0 0 0 0 0 0 10 1 0 0 3 0 0 0 2 2 0 0 3 5 0 0 2 0 0 O0 0 1 0 0 1 0 0 .0 3 0 0 0 2 2 0 0 0 0 0 0 Total 3 2 3 9 7 3 0 11 3 4 9 2 2 3 3 4 0 6 30 , 32 0 .0 68 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:-- page 101 of 104 --

I SECTION 9 CHANGES TO RADIOACTIVE WASTE TREATEMENT SYSTEMS In accordance, with Section 7.2 of the CPS ODCM, licensee-initiated changes to I the liquid, gaseous or solid radioactive waste treatment systems shall be reported in the Annual Radioactive, Effluent Release Report.There were no instances of licensee-initiated changes .to the liquid, gaseous or solid radioactive waste treatment systems during 2013.p I II I I I U I I I II I I-- page 1O2 of 104 --

SECTION 10.CORRECTIONS TO DATA REPORTED IN PREVIOUS REPORTS I1t was identified that, the dosimeters used for measuring.

the ambient gamma radiation field were incorrectly identified as Thermoluminescent Dosimeters, [TLD] on page 34 of the 2012 Annual Radioactive Effluent Release Report-. The following page has been revised to appropriately identify the dosimeters as Optically Stimulated Luminescent Dosimeters

[OSLD]:'.-- page 103 of 104 --

I Revision to Pg 39 of the 2012 Annual Radioactive Effluent Release Report COMPLIANCE WITH 40CFR190 REQUIREMENTS Optically Stimulated Luminescent Dosimeters

[OSLD] are stationed around CPS to measure the ambient gamma radiation field. Monitoring stations are placed near the site boundary and approximately five (5) miles from the reactor, in locations representing the sixteen (16) compass sectors. Other locations are chosen to measure the radiation field at places of special interest such as nearby residences, meeting places and population centers. Control sites are located further than ten (10) miles from the site, in areas that should not be affected by plant operations.

The results from the OSLDs are reported in the Annual Radiological Environmental Monitoring Report[REMP]. The results from this effort indicated no excess dose to offsite areas.Additionally, NUREG-0543, METHODS FOR DEMONSTRATING LWR COMPLIANCE WITH THE EPA URANIUM FUEL CYCLE STANDARD (40 CFR PART I 190) states in section IV, "As long as a nuclear plant site operates at a level below the Appendix I reporting requirements, no extra analysis is required to demonstrate compliance with 40 CFR Part 190." The organ and whole body doses reported in Table 8 are determined using 10 CFR 50 Appendix I methodology.

The doses reported are well below the limits of Appendix I.DOSE TO MEMBERS OF THE PUBLIC WITHIN THE SITE BOUNDARY CPS ODCM section 7.2 requires that the Radioactive Effluent Release Report include an assessment of the radiation doses from radioactive liquids and gaseous effluents to MEMBERS OF THE PUBLIC due to their activities inside the SITE BOUNDARY.

Within the CPS site boundary there are seven areas that are open to members of the public as identified by CPS ODCM Table 3.4-4 (see Figure 4): I-The Department of Natural Resources Recreation Area at 1.287 kilometers (0.8 miles) in the ESE sector-A road at 0.495 kilometers (0.3 miles) in the SE sector-A residence at 2.736 kilometers (1.7 miles) in the SSE sector-A residence at 1.219 kilometers (0.8 miles) in the SW sector-Agricultural acreage at 1.372 kilometers (0.9 miles) in the SSW sector-A residence at 2.414 kilometers (1.5 miles) in the WSW sector-A portion of Clinton Lake at 0.335 kilometers (0.2 miles) in the NW sector At all of the above locations, the plume, inhalation and ground-plane exposure pathways are used for dose calculations.

The 2012 Annual Land Use Census identified no other exposure pathways.

All dose calculations were performed using the methodology contained in the CPS ODCM, with the exception of dose due to C-14, which was calculated using methodology included in the EPRI Technical Report 1021106.I I I I I I I I-- page 104 of 104 --