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Clinton, Unit 1 - 2014 Annual Radiological Environmental Operating Report
	ML15113B117
Person / Time
Site:	Clinton
Issue date:	04/16/2015
From:	Newcomer M M; Exelon Generation Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	U-604210
	Download: ML15113B117 (141)
	v • d • e

Exeton Generation.

Clinton Power Station8401 Power RoadClinton, IL 61727U-60421 0April 16, 2015U.S. Nuclear Regulatory Commission ATTN: Document Control DeskWashington, DC 20555Clinton Power Station, Unit 1Facility Operating License No. NPF-62NRC Docket No. 50-461

Subject:

Clinton Power Station 2014 Annual Radiological Environmental Operating ReportExelon Generating

Company, LLC (Exelon),

Clinton Power Station is submitting the 2014Annual Radiological Environmental Operating Report. This report is submitted in accordance with Technical Specification requirement 5.6.2, "Annual Radiological Environmental Operating Report,"

and covers the period from January 1, 2014 through December 31, 2014.This reports provides the results of the Radiological Environmental Monitoring Program asspecific in Section 5.0 and 7.1 of the Offsite Dose Calculation Manual.There are no regulatory commitments contained within this letter.Questions on this letter may be directed to Mr. Rick Bair, Chemistry Manager,at 217-937-3200.

Respectully, MAk M. l~wcomerSite Vice Preside*dra/cascc: Regional Administrator

-NRC Region IIINRC Senior Resident Inspector

-Clinton Power StationOffice of Nuclear Facility Safety -Illinois Emergency Management Agency Page 1 of 140 Intentionally left blankPage 2 of 140 Docket No: 50-461CLINTON POWER STATIONAnnual Radiological Environmental Operating Report1 January Through 31 December 2014Prepared ByTeledyne Brown Engineering Environmental ServicesSExelonGeneration, Clinton Power StationClinton, IL 61727April 2015Page 3 of 140 Intentionally left blankItPage 4 of 140 Table Of ContentsI. Sum mary and Conclusions

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1Il. Introduction

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3A. Objectives of the REM P ..................................................................................

3B. Im plementation of the Objectives

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3III. Program Description

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4A. Sam ple Collection

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4B. Sam ple Analysis

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6C. Data Interpretation

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6D. Program Exceptions

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8E. Program Changes .........................................................................................

12IV. Results and Discussion

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12A. Aquatic Environment

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

122. Drinking W ater ..................................................................................

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

134 .F is h ...................................................................................................

..145. Sediment

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14B. Atmospheric Environment

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151. Airborne

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15a. Air Particulates

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15b. Airborne Iodine ........................................................................

162. Terrestrial

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16a .M ilk ........................................................................................

..16b. Food Products

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16c. Grass ......................................................................................

17C. Am bient Gam ma Radiation

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17D. Land Use Survey ..........................................................................................

17E. Errata Data ..................................................................................................

18F. Summary of Results -Inter-laboratory Comparison Program ......................

18V .R e fe re n ce s ...................................................................................................................

2 1Page 5 of 140 Appendices Appendix ATablesTable A-1Appendix BTablesTable B-1Table B-2FiquresFigure B-1Figure B-2Figure B-3Figure B-4Appendix CTablesTable C-1.1Table C-1.2Table C-1.3Table C-11.1Radiological Environmental Monitoring Report SummaryRadiological Environmental Monitoring Program Annual Summary forthe Clinton Power Station, 2014Location Designation, Distance

& Direction, and Sample Collection

&Analytical MethodsRadiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, Clinton Power Station, 2014Radiological Environmental Monitoring Program.-

Summary of SampleCollection, Clinton Power Station, 2014Environmental Sampling Locations Within One Mile of the ClintonPower Station, 2014Environmental Sampling Locations Between One and Two Miles fromthe Clinton Power Station, 2014Environmental Sampling Locations Between Two and Five Miles fromthe Clinton Power Station, 2014Environmental Sampling Locations Greater Than Five Miles from theClinton Power Station, 2014Data Tables and Figures -Primary Laboratory Concentrations of 1-131 in Surface Water Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of Tritium in Surface Water Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Surface Water SamplesCollected in the Vicinity of Clinton Power Station, 2014.Concentrations of Gross Beta in Drinking Water Samples Collected inthe Vicinity of Clinton Power Station, 2014.iiPage 6 of 140 Table C-11.2Table C-11.3Table C-11.4Table C-111.1Table C-I11.2Table C-IV.1Table C-V.1Table C-VI.1Table C-VI.2Table C-VI.3Table C-VII.1Table C-VIII.1Table C-VIII.2Table C-IX.1Table C-IX.2Table C-X.1Table C-X.2Table C-X.3Concentrations of Tritium in Drinking Water Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of 1-131 in Drinking Water Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Drinking Water SamplesCollected in the Vicinity of Clinton Power Station, 2014.Concentrations of Tritium in Well Water Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Ground Water SamplesCollected in the Vicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Fish Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Sediment Samples Collected inthe Vicinity of Clinton Power Station, 2014.Concentrations of Gross Beta in Air Particulate Samples Collected inthe Vicinity of Clinton Power Station, 2014.Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3pCi/cu. meter) in Air Particulate Samples Collected in the Vicinity ofClinton Power Station, 2014.Concentrations of Gamma Emitters in Air Particulate SamplesCollected in the Vicinity of Clinton Power Station, 2014.Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinityof Clinton Power Station, 2014.Concentrations of 1-131 in Milk Samples Collected in the Vicinity ofClinton Power Station, 2014.Concentrations of Gamma Emitters in Milk Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Vegetation Samples Collected in the Vicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Grass Samples Collected in theVicinity of Clinton Power Station, 2014.Quarterly DLR Results for Clinton Power Station, 2014.Mean Quarterly DLR Results for the Inner Ring, Outer Ring, SpecialInterest and Control Locations for Clinton Power Station, 2014.Summary of the Ambient Dosimetry Program for Clinton PowerStation, 2014.iiiPage 7 of 140 Fi-quresFigure C-1Figure C-2Appendix DTablesTable D-1Table D-2Table D-3Appendix EAppendix FMean Monthly Gross Beta Concentrations in Air Particulate SamplesCollected in the Vicinity of CPS, 2014.Mean Quarterly Ambient Gamma Radiation Levels (DLR) in theVicinity of CPS, 2014.Inter-Laboratory Comparison ProgramAnalytics Environmental Radioactivity Cross Check ProgramTeledyne Brown Engineering, 2014ERA Environmental Radioactivity Cross Check ProgramTeledyne Brown Engineering, 2014DOE's Mixed Analyte Performance Evaluation Program (MAPEP)Teledyne Brown Engineering, 2014Errata DataAnnual Radiological Groundwater Protection Program Report(ARGPPR)ivPage 8 of 140

1. Summary and Conclusions This report on the Radiological Environmental Monitoring Program (REMP)conducted for the Clinton Power Station (CPS) by Exelon Generation Company,LLC (Exelon) covers the period 1 January 2014 through 31 December 2014.During that time period, 1,569 analyses were performed on 1,462 samples.

Inassessing all the data gathered for this report and comparing these results withpreoperational data, it was concluded that the operation of CPS had no adverseradiological impact on the environment.

There were zero (0) radioactive liquid releases from CPS during 2014.Releases of gaseous radioactive materials were accurately measured in planteffluents.

There were no gaseous effluent releases that approached the limitsspecified in the CPS Offsite Dose Calculation Manual (ODCM). The highestcalculated offsite dose received by a member of the public due to the release ofgaseous effluents from CPS was 9.41 E-02 or 0.0941 mRem.Surface,

drinking, and well water samples were analyzed for concentrations oftritium and gamma emitting nuclides.

Drinking water samples were alsoanalyzed for concentrations of gross beta and 1-131. Naturally occurring K-40was detected at levels consistent with those detected in previous years. Nofission or activation products were detected.

No tritium or gross beta activity wasdetected and the required lower limit of detection (LLD) was met.Fish and shoreline sediment samples were analyzed for concentrations ofgamma emitting nuclides.

No fission or activation products were detected in fishor shoreline sediment samples.Air particulate samples were analyzed for concentrations of gross beta andgamma emitting nuclides.

Cosmogenic Be-7 and naturally occurring K-40 weredetected at levels consistent with those detected in previous years. No fission oractivation products were detected.

High sensitivity 1-131 analyses were performed on weekly air samples.

Allresults were less than the lower limit of detection for 1-131.Cow milk samples were analyzed for concentrations of 1-131 and gammaemitting nuclides.

All results were below the required LLDs for 1-131.Concentrations of naturally occurring K-40 were consistent with those detected inprevious years. No fission or activation products were found.Food product samples were analyzed for concentrations of gamma emittingnuclides.

Concentrations of cosmogenically produced Be-7 and naturally occurring K-40 were consistent with those detected in previous years. No fissionor activation products were detected.

Grass samples were analyzed for concentrations of gamma emitting nuclides.

Concentrations of cosmogenically produced Be-7 and naturally occurring K-40were consistent with those detected in previous years. No fission or activation Page 9 of 140 products were detected.

Environmental gamma radiation measurements were performed quarterly usingDosimeters of Legal Record (DLR). Levels detected were consistent with thoseobserved in previous years.-2-Page 1Oof 140 II. Introduction The Clinton Power Station (CPS), consisting of one approximately 1,140 MWgross electrical power output boiling water reactor is located in Harp Township, DeWitt County, Illinois.

CPS is owned and operated by Exelon and becameoperational in 1987. Unit No. 1 went critical on 15 February 1987. The siteencloses approximately 13,730 acres. This includes the 4,895 acre, man-madecooling lake and about 452 acres of property not owned by Exelon. The plant issituated on approximately 150 acres. The cooling water discharge flume -whichdischarges to the eastern arm of the lake -occupies an additional 130 acres.Although the nuclear reactor, supporting equipment and associated electrical generation and distribution equipment lie in Harp Township, portions of theaforementioned 13,730 acre plot reside within Wilson, Rutledge, DeWitt, Creek,Nixon and Santa Anna Townships.

A Radiological Environmental Monitoring Program (REMP) for CPS was initiated in 1987. The preoperational period for most media covers the periods May 1980through 27 February 1987 and was summarized in a separate report. This reportcovers those analyses performed by Teledyne Brown Engineering (TBE) andLandauer on samples collected during the period 1 January 2014 through 31December 2014.A. Objectives of the REMPThe objectives of the REMP are to:1. Provide data on measurable levels of radiation and radioactive materials in the site environs.

2. Evaluate the relationship between quantities of radioactive materialreleased from the plant and resultant radiation doses to individuals from principal pathways of exposure.

B. Implementation of the Objectives The implementation of the objectives is accomplished by:1. Identifying significant exposure pathways.

2. Establishing baseline radiological data of media within thosepathways.

3. Continuously monitoring those media before and during Stationoperation to assess Station radiological effects (if any) on man andthe environment. Page 11 of 140 Ill. Program Description A. Sample Collection This section describes the general collection methods used byEnvironmental Inc. (Midwest Labs) to obtain environmental samples forthe CPS REMP in 2014. Sample locations and descriptions can be foundin Tables B-1 and B-2, and Figures B-1 through B-3, Appendix B. Thesampling methods used by Environmental Inc. (Midwest Labs) are listed inTable B-2.Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, drinking water, well water, fish, andshoreline sediment.

Two gallon water samples were collected monthlyfrom continuous samplers located at three surface water locations (CL-90,CL-91 and CL-99) and one drinking water location (CL-14).

A monthlygrab sample was obtained from one surface water location (CL-1 3).Quarterly samples were obtained from two well water locations (CL-7Dand CL-12). All samples were collected in new unused plastic bottles,which were rinsed at least twice with source water prior to collection.

Fishsamples comprising the flesh of largemouth bass, crappie, carp, bluegill, channel catfish, and white bass, the species most commonly harvested from the lakes by sporting fishermen, were collected semiannually at twolocations, CL-19 and CL-105. CL-105 was the control location.

Shoreline sediment samples composed of recently deposited substrate werecollected at two locations semiannually (CL-7B and CL- 05 (control)).

Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulate, airborne iodine, milk, food produceand grass. Airborne iodine and particulate samples were collected andanalyzed weekly at ten locations (CL-1, CL-2, CL-3, CL-4, CL-6, CL-7,CL-8, CL- 1, CL-i5 and CL-94). CL-1 1 was the control location.

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

Thepumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent tothe laboratory for analysis.

Milk samples were collected biweekly at one location (CL-1 16) from Maythrough October and monthly from November through April to coincidewith the grazing season. All samples were collected in new unused-4-Page 12 of 140 plastic bottles from the bulk tank at that location, preserved with sodiumbisulfite and shipped promptly to the laboratory.

Food products were collected once a month from June throughSeptember at four locations (CL-114, CL-115, CL-117 and CL-118).

Thecontrol location was CL- 14. Various broadleaf vegetable samples werecollected and placed in new unused plastic bags, and sent to thelaboratory for analysis.

Grass samples were collected biweekly at four locations (CL-1, CL-2,CL-8 and CL- 16) from May through October.

CL- 16 was the controllocation.

All samples were collected in new unused plastic bags and sentto the laboratory for analysis.

Ambient Gamma Radiation Direct radiation measurements were made using DLRs. Each locationconsisted of 2 dosimeter sets. The DLRs were exchanged quarterly andsent to Landauer for analysis.

The DLR locations were placed around theCPS site as follows:An inner ring consisting of 16 locations (CL-1, CL-5, CL-22, CL-23, CL-24,CL-34, CL-35, CL-36, CL-42 CL-43, CL-44, CL-45, CL-46, CL-47, CL-48and CL-63).An outer ring consisting of 16 locations (CL-51, CL-52, CL-53, CL-54,CL-55, CL-56, CL-57, CL-58, CL-60, CL-61, CL-76, CL-77, CL-78, CL-79,CL-80 and CL-81). CL-58MM was installed as part of a volunteer comparison study extending to approximately 5 miles from the site.A special interest set consisting of seven locations (CL-37, CL-41, CL-49,CL-64, CL65, CL-74 and CL-75) representing special interest areas.A supplemental set consisting of 14 locations (CL-2, CL-3, CL-4, CL-6,CL-7, CL-8, CL-15, CL-33, CL-84, CL-90, CL-91, CL-97, CL-99 andCL- 14).CL- 1 represents the control location for all environmental DLRs.The specific DLR locations were determined by the following criteria:

1. The presence of relatively dense population;

2. Site meteorological data taking into account distance and elevation for each of the sixteen-22 1/2 degree sectors around the site,-5-Page 13 of 140 where estimated annual dose from CPS, if any, would be mostsignificant;

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

4. And near the closest dwelling to the HVAC and VG stacks in theprevailing downwind direction.

Each location has two DLRs in a vented PVC conduit locatedapproximately three feet above ground level. The DLRs were exchanged quarterly and sent to Landauer for analysis.

B. Sample AnalysisThis section describes the general analytical methodologies used by TBEand Environmental Inc. (Midwest Labs) to analyze the environmental samples for radioactivity for the CPS REMP in 2014. The analytical procedures used by the laboratories are listed in Table B-2.In order to achieve the stated objectives, the current program includes thefollowing analyses:

1. Concentrations of beta emitters in drinking water and airparticulates.

2. Concentrations of gamma emitters in surface, drinking and wellwater, air particulates, milk, fish, grass, sediment and vegetables.

3. Concentrations of tritium in surface, drinking and well water.4. Concentrations of 1-131 in air, milk, drinking water and surfacewater.5. Ambient gamma radiation levels at various on-site and off-siteenvirons.

C. Data Interpretation The radiological and direct radiation data collected prior to CPS becomingoperational was used as a baseline with which these operational datawere compared.

For the purpose of this report, CPS was considered operational at initial criticality.

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

Severalfactors were important in the interpretation of the data:-6-Page 14 of 140

1. Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) was defined as the smallestconcentration of radioactive material in a sample that would yield anet count (above background) that would be detected with only a5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD was intended as a before thefact estimate of a system (including instrumentation, procedure andsample type) and not as an after the fact criteria for the presence ofactivity.

All analyses were designed to achieve the required CPSdetection capabilities for environmental sample analysis.

2. Net Activity Calculation and Reporting of ResultsNet activity for a sample was calculated by subtracting background activity from the sample activity.

Since the REMP measuresextremely small changes in radioactivity in the environment, background variations may result in sample activity being lowerthan the background activity resulting in a negative number. Aminimum detectable concentration (MDC) was reported in all caseswhere positive activity was not detected.

Gamma spectroscopy results for each type of sample weregrouped as follows:For surface water, well water, fish, sediment, and milk 14nuclides, Be-7, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95,Zr-95, Cs-1 34, Cs-1 37, Ba-140, La-140 and Ce-144 werereported.

For drinking water, grass, and vegetation 15 nuclides, Be-7, K-40,Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, 1-131, Cs-134,Cs-1 37, Ba-140, La-140 and Ce-1 44 were reported.

For air particulate 11 nuclides, Be-7, K-40, Co-60, Nb-95, Zr-95,Ru-1 03, Ru-1 06, Cs-1 34, Cs-1 37, Ce-141 and Ce-1 44, werereported.

The mean and standard deviation of the results were calculated.

The standard deviation represents the variability of measuredresults for different samples rather than single analysis uncertainty. Page 15 of 140 D. Program Exceptions The exceptions (Issue Reports, IRs) described below are those that areconsidered

'deviations' from the Radiological Environmental Monitoring Program as required by the Station's ODCM. By definition,

'deviations' are permitted as delineated within NUREG-0133, "Preparation ofRadiological Effluent Technical Specifications for Nuclear Power Plants",October 1978, and within Radiological Assessment Branch Technical

Position, Revision 1, November 1979, which states....

"Deviations arepermitted from the required sampling schedule if specimens areunobtainable due to hazardous conditions, seasonal unavailability, malfunction of automatic sampling equipment and other legitimate reasons"....

The below section addresses the reporting requirements found within Section 7.1 of the Station's ODCM.Exceptions/Anomalies January 01, 2014, IR 1608889During the weekly walkdown of liquid composite samplers it wasdiscovered that sample collection of non-ODCM liquid compositor location CL-99 was not possible due to freezing of the North ForkCreek. This sampling unavailability is experienced during periodsof sub-freezing temperatures due to the small body of water beingsampled.

Sample collection will be restored when the creek hasthawed sufficiently.

January 08, 2014, IR 1608894During a walkdown of liquid composite samplers it was discovered that sample collection of non-ODCM liquid compositor locationCL-99 was not possible due to freezing of the North Fork Creek.This sampling unavailability is experienced during periods ofsub-freezing temperatures due to the small body of water beingsampled.

Sample collection will be restored when the creek hasthawed sufficiently.

May 07, 2014, IR 1657101REMP program owner identified that the drinking water compositor CL-14 was not collecting composite samples as there was no flowthrough the compositor.

The sampling line was flushed and flowwas reestablished. Page 16 of 140 May 21, 2014, IR 1663766While conducting a weekly compositor check for REMP locationCL-91 it was discovered that the compositor was without power. Agrab sample was obtained for the week; however the Maycomposite sample will not meet the definition of a composite sample [sample aliquots shall be collected at time intervals that arevery short (e.g., hourly) relative to the composite period (e.g.,monthly) in order to assure obtaining a representative sample].Power was restored to the compositor and was functioning properlywhen the vendor left the site.August 27, 2014, IR 02473280On Wednesday, 08/27/14 while performing the Vegetation Collections per ODCM Table 5.1-1.4.c, Sample Garden at CL-114did not meet the minimum weight collection criteria for cabbageand was augmented with broady leaf vegetation.

September 24, 2014. IR 2386276On Wednesday, 09/24/14 while performing Surface WaterCollections, Water Compositor CL-91 was found not operating consistently, by not collecting a composite sample per ODCMTable 5.1-1.g Table Notation and Table 5.1-1.3.a.

Although areplacement water compositor was available and replaced with theinoperable unit, a grab sample was also obtained to augment theweekly sample collection, meeting the monthly composite minimumvolume.On Wednesday, 09/24/14 while performing the Vegetation Collections per ODCM Table 5.1-1.4.c, Sample Garden at CL- 14did not meet the minimum weight collection criteria for cabbageand was augmented with broady leaf vegetation.

On Wednesday, 09/24/14 while performing the Vegetation Collections per ODCM Table 5.1-1.4.c, Sample Garden at CL- 15did not meet the minimum weight collection criteria for bothcabbage and kale and was augmented with broady leaf vegetation.

On Wednesday, 09/24/14 while performing the Vegetation Collections per ODCM Table 5.1-1.4.c, Sample Garden at CL-1 17did not meet the minimum weight collection criteria for cabbageand was augmented with broady leaf vegetation.

The vegetation sample collection only occurs during the harvest season of June,-9-Page 17 of 140 July, August and September.

November 5, 2014. IR 2407027At 0030 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months on 11/05/14, Clinton lost the 12 kV 302 Loop thatimpacted ODCM Water Compositor CL-90 at 0.4 miles. Becausethe normally scheduled weekly surveillance is being performed today every Wednesday, the six hour and 28 minute gap insampling meets the definition of exceptions pursuant to NUREG0133 for the 'malfunctioning of sampling equipment' and other'legitimate reasons'.

Further, the gap identified, will not impact thedetection capability of meeting the lower limits of detection LLD] ofthe sample. This will however be reported in the Annual Reportpursuant to Tech Spec 5.6.3.With a portable generator, ODCM Water Compositor CL-90 wasrestored to operable at 0717 hours0.0083 days 0.199 hours 0.00119 weeks 2.728185e-4 months . The sampling frequency ishourly intervals, feeding into a monthly composite.

Becausepotentially, seven hourly intervals were missed, this meets thedefinition of exceptions pursuant to NUREG 0133 for the'malfunctioning of sampling equipment' and other 'legitimate reasons'.

November 14, 2014. IR 2412724At 0215 hours0.00249 days 0.0597 hours 3.554894e-4 weeks 8.18075e-5 months on 11/14/14 while executing WO 1490322-35 andCPS No. 3409.01, that completed the shutdown of the ServiceBuilding per eSOMS log entry made at 0620 hours0.00718 days 0.172 hours 0.00103 weeks 2.3591e-4 months on 11/14/14, Chemistry secured CL-14, ODCM Drinking Water Compositor.

At 1055 hours0.0122 days 0.293 hours 0.00174 weeks 4.014275e-4 months on 11/14/14, with power now restored to the ServiceBuilding, Chemistry returned to service, CL-14, ODCM DrinkingWater Compositor back to service.November 26, 2014 IR 02473354During the weekly environmental monitoring surveillance forairborne iodine/particulate performed on 11/26/14, the samplecollector found the indicated air sampling run time at ODCM stationCL-3 to be low. In the absence of any surrounding power outages,it was determined that the sample timer was defective and wasreplaced.

This IR was documented to address the LLDs were notobtainable due to the indicated low run time of the sample andinsufficient sample volume collected. Page 18 of 140 Throughout 2014, the following IRs were generated to note minor gaps inthe sample collection run times that although were not continuous, thesample collection volumes collected were more than sufficient to meet therequired ODCM LLD reporting criteria.

The expectation is to documentthese exceptions into the Corrective Action Program for trending todetermine timer failures or external utility support for seeking reliablepower delivery.

IR 1608616IR 1614260IR 1620397IR 1623479IR 1626538IR 1629591IR 1632572IR 1648359IR 1653938IR 1678628Missed SamplesFebruary 19, 2014, IR 1623479During a walkdown of liquid composite samplers it was found thatsample collection of non-ODCM liquid compositor location CL-99was not possible due to freezing of the North Fork Creek. Thissampling unavailability is experienced during periods ofsub-freezing temperatures due to the small body of water beingsampled.

Sample collection will be restored when the creek hasthawed sufficiently.

February 26, 2014, IR 1626538During a walkdown of liquid composite

samplers, it wasdiscovered that sample collection of non-ODCM liquid compositor location CL-99 was not possible due to freezing of the North ForkCreek. This sampling unavailability is experienced during periods ofsub-freezing temperatures due to the small body of water beingsampled.

Sample collection was restored when the creek hadthawed sufficiently.

September 25, 2014, IR 02463928The quarterly DLR surveillance was completed with dosimeters atall DLR locations collected.

This was verified by the vendor sample-11 -Page 19 of 140 collector and the Program Manager upon completion prior toshipping to the dosimetry vendor Landauer.

Landauer stated theydid not perform the analysis for location CL-52, due to both theprimary and the secondary dosimeter being absent from thepackage.

There was no radiological impact to the environment asa result of the missing dosimeters when comparing the adjoining monitored meteorological sectors and their results and whenfurther coupled with a comparison of the control station.Program exceptions were reviewed to understand the causes of theexception and to return to ODCM sample compliance before the nextsampling frequency period.The overall sample recovery rate indicates that the appropriate procedures and equipment are in place to assure reliable programimplementation.

E. Program ChangesThe corporate procedure CY-AA-170-1000 Radiological Environmental Monitoring Program and Meteorological Program Implementation wasrevised.

The changes made were non-impactful and included additional guidance for clarification regarding REMP air sampling equipment.

IV. Results and Discussion A. Aquatic Environment

1. Surface WaterSamples were taken hourly from a continuous compositor at threelocations (CL-90, CL-91 and CL-99) on a monthly schedule andgrab samples were taken monthly from one location (CL-13).

Thefollowing analyses were performed.

Iodine-131 Monthly samples from location CL-90 were analyzed for 1-131activity (Table C-1.1, Appendix C). No 1-131 was detected in anysamples and the required LLD was met.TritiumMonthly samples from all locations were composited quarterly and-12-Page 20 of 140 analyzed for tritium activity (Table C-1.2, Appendix C). No tritiumwas detected in any samples and the required LLD was met.Gamma Spectrometry Samples from all locations were analyzed for gamma emittingnuclides (Table C-1.3, Appendix C). Naturally occurring K-40 wasfound in six of 47 samples.

The concentration ranged from 27 to93 pCi/L. No other nuclides were detected and all required LLDswere met.2. Drinking WaterMonthly samples were collected from a continuous compositor atone location (CL-14).

The following analyses were performed:

Gross BetaMonthly samples were analyzed for concentrations of gross beta(Tables C-11.1, Appendix C). No Gross beta was detected in any ofthe samples.TritiumMonthly samples were composited quarterly and analyzed fortritium activity (Table C-11.2, Appendix C). No tritium was detectedin any samples and the required LLD was met.Iodine-131 Monthly samples from location CL-14 were analyzed for 1-131activity (Table C-11.3, Appendix C). No 1-131 was detected in anysamples and the required LLD was met.Gamma Spectrometry Monthly samples were analyzed for gamma emitting nuclides(Table C-11.4, Appendix C). No nuclides were detected and allrequired LLDs were met.3. Well WaterQuarterly grab samples were collected at two locations (CL-7D andCL-12, consisting of CL-12R [a raw water sample from this well]and CL-12T [same well water, but after treatment and available for-13-Page 21 of 140 consumption]).

The following analyses were performed:

TritiumSamples from all locations were analyzed for tritium activity (TableC-111.1, Appendix C). No tritium was detected in any samples andthe required LLD was met.Gamma Spectrometry Samples from all locations were analyzed for gamma emittingnuclides (Table C-111.2, Appendix C). Naturally occurring K-40 wasfound in one of four samples for location CL-7D at a concentration of 30 pCi/I. No other nuclides were detected in any of the samplesand all required LLDs were met.4. FishFish samples comprised of carp, largemouth bass, bluegill, crappie,channel catfish, and white bass were collected at two locations (CL-19 and CL- 05) semiannually.

The following analysis wasperformed:

Gamma Spectrometry The edible portion of fish samples from both locations wasanalyzed for gamma emitting nuclides (Table C-IV.1, Appendix C).Naturally occurring K-40 was found at both locations.

No fission oractivation products were found. No other nuclides were detectedand the required LLDs were met.5. Shoreline SedimentAquatic shoreline sediment samples were collected at CL-7B andCL- 05 semiannually.

The following analysis was performed:

Gamma Spectrometry Shoreline sediment samples were analyzed for gamma emittingnuclides (Table C-V.1, Appendix C). Naturally occurring K-40 wasdetected in all samples.

No fission or activation products werefound. No other nuclides were detected and the required LLDswere met.-14-Page 22 of 140 B. Atmospheric Environment Airbornea. Air Particulates Continuous air particulate samples were collected from 10locations on a weekly basis. The 10 locations wereseparated into three groups: Group I represents locations within one mile of the CPS site boundary (CL-2, CL-3, CL-4,CL-6, CL-15 and CL-94); Group II represents the locations at an intermediate distance within one to five miles of CPS(CL-1, CL-7 and CL-8); and Group III represents the controllocation greater than five miles from CPS (CL- 1). Thefollowing analyses were performed:

Gross BetaWeekly samples were analyzed for concentrations of betaemitters (Table C-VI.1 and C-VI.2 and Figure C-1,Appendix C).Detectable gross beta activity was observed at all locations.

Comparison of results among the three groups aid indetermining the effects, if any, resulting from the operation of CPS. The results from the On-Site locations (Group I)ranged from 7 to 64 E-3 pCi/m3 with a mean of 18 E-3pCi/m3.The results from the Intermediate Distance location(Group II) ranged from 7 to 41 E-3 pCi/mi3 with a mean of 18E-3 pCi/m3.The results from the Control locations (GroupIll) ranged from 8 to 32 E-3 pCi/m3 with a mean of 19 E-3pCi/m3.Comparison of the 2014 air particulate data withprevious years data indicate no effects from the operation ofCPS (Figure C-5, Appendix C). In addition, a comparison ofthe weekly mean values for 2014 indicate no notabledifferences among the three groups.Gamma Spectrometry Weekly samples were composited quarterly and analyzedfor gamma emitting nuclides (Table C-VI.3, Appendix C).Naturally occurring cosmogenically produced Be-7 due tocosmic ray activity was detected in 38 of 40 samples.

Noother nuclides were detected and all required LLDs weremet.-15-Page 23 of 140

b. Airborne IodineContinuous air samples were collected from 10 locations (CL-1, CL-2, CL-3, CL-4, CL-6, CL-7, CL-8, CL-11, CL-15and CL-94) and analyzed weekly for 1-131 (Table C-VII.1,Appendix C). All results were less than the MDC and therequired LLD was met.2. Terrestrial

a. MilkSamples were collected from CL-1 16 biweekly May throughOctober and monthly November through April to coincidewith the grazing season. The following analyses wereperformed:

Iodine-1 31Milk samples were analyzed for concentrations of 1-131(Table C-VIII.I, Appendix C). lodine-131 was not detectedin any of the samples.

The required LLD was met.Gamma Spectrometry Each milk sample was analyzed for concentrations ofgamma emitting nuclides (Table C-VIII.2, Appendix C).Naturally occurring K-40 activity was found in all samples.No other nuclides were detected and all required LLDs weremet.b. Food ProductsBroadleaf vegetation samples were collected from fourlocations (CL-114, CL-115, CL-117 and CL-118) monthlyJune through September to coincide with the harvestseason. The following analysis was performed:

Gamma Spectrometry Each food product sample was analyzed for concentrations of gamma emitting nuclides (Table C-IX.I, Appendix C).Cosmogenically produced Be-7 due to cosmic ray activitywas detected in most samples.

Naturally occurring K-40-16-Page 24 of 140 activity was found in all samples.

No other nuclides weredetected and all required LLDs were met.c. GrassSamples were collected from four locations (CL-1, CL-2,CL-8, and CL-1 16) biweekly May through October.

Thefollowing analysis was performed:

Gamma Spectrometry Each grass sample was analyzed for concentrations ofgamma emitting nuclides (Table C-IX.2, Appendix C).Cosmogenically produced Be-7 due to cosmic ray activityand naturally occurring K-40 were in all samples.

No othernuclides were detected and all required LLDs were met.C. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing DLRs. Fifty-four DLR locations were established around the site. Results of DLRmeasurements are listed in Tables C-X.1 to C-X.3, Appendix C.A total of 215 OSLD measurements were made in 2014. The averagedose from the inner ring was 22.6 mRem/quarter.

The average dose fromthe outer ring was 22.7 mRem/quarter.

The average dose from thespecial interest group was 22.5 mRem/quarter.

The average dose fromthe supplemental group was 21.2 mRem/quarter.

The quarterly measurements ranged from 17.3 to 26.8 mRem/quarter.

The inner ring and outer ring measurements compared well to the ControlStation, CL-1 1, which ranged from 20.6 mRem/quarter to 21.5mRem/quarter with an average measurement of 21.0 mRem/quarter.

Acomparison of the Inner Ring and Outer Ring data to the Control Locationdata indicate that the ambient gamma radiation levels from all thelocations were comparable.

The historical ambient gamma radiation datafrom the control location were plotted along with similar data from theInner and Outer Ring Locations (Figure C-2, Appendix C).D. Land Use SurveyA Land Use Survey conducted during the July through October 2014growing season around the Clinton Power Station (CPS) was performed by Environmental Inc. (Midwest Labs) for Exelon to comply with Clinton's Page 25 of 140 Offsite Dose Calculation Manual, section 5.2. The purpose of the surveywas to document the nearest resident, milk producing animal and gardenof greater than 538 m2 in each of the sixteen 22 /2 degree sectors aroundthe site. The distance and direction of all locations from the CPS StationHVAC vent stack were positioned using Global Positioning System (GPS)technology.

There were no changes required to the CPS REMP as aresult of this survey. The results of this survey are summarized below.Distance in Kilometers from the CPS Station HVAC VentStackSector Residence Garden Milk Animal(km) (km) (km)1 N 1.5 1.5 1.52 NNE 1.5 4.8 3.83 NE 2.1 >8 >84 ENE 2.9 2.9 6.65 E 1.7 1.7 > 86 ESE 5.1 5.3 > 87 SE 4.4 >8 >88 SSE 2.9 > 8 > 89 S 4.8 6.6 6.610 SSW 4.7 > 8 5.511 SW 1.2 5.9 > 812 WSW 3.6 3.7 5.513 W 2.0 3.2 > 814 WNW 2.6 2.6 > 815 NW 2.7 4.5 > 816 NNW 2.1 2.1 2.1E. Errata DataDuring the REMP NRC Inspection in 2014, it was observed by the Inspector and captured within IR #01685370, that the term TLD (Thermoluminescent Dosimeter) had been used throughout the 2013 AREOR, describing thedosimeter of legal record (DLR) as opposed to the OSLD (Optically Stimulated Luminescent Dosimeter) that is currently being used to obtaindirect radiation exposure from the environment as required of the REMPprogram.

In the current 2014 report, TLD has been replaced by DLR.F. Summary of Results -Inter-Laboratory Comparison ProgramThe primary laboratory analyzed Performance Evaluation (PE) samples ofair particulate, air iodine, milk, soil, vegetation and water matrices for 19analytes (Appendix D). The PE samples, supplied by Analytics Inc.,Environmental Resource Associates (ERA) and DOE's Mixed AnalytePerformance Evaluation Program (MAPEP),

were evaluated against the-18-Page 26 of 140 following pre-set acceptance criteria:

1. Analytics Evaluation CriteriaAnalytics' evaluation report provides a ratio of TBE's result andAnalytics' known value. Since flag values are not assigned byAnalytics, TBE-ES evaluates the reported ratios based on internalQC requirements, which are based on the DOE MAPEP criteria.

2. ERA Evaluation CriteriaERA's evaluation report provides an acceptance range for controland warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, NELAC, state specific PTprogram requirements or ERA's SOP for the Generation ofPerformance Acceptance Limits, as applicable.

The acceptance limits are either determined by a regression equation specific toeach analyte or a fixed percentage limit promulgated under theappropriate regulatory document.

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

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

In reviewing our environmental inter-laboratory crosscheck

programs, weidentified

1) duplication of efforts on some matrices and isotopes and 2)that we are performing crosscheck samples on some matrices andisotopes that we do not perform for clients.

Since the DOE MAPEP isdesigned to evaluate the ability of analytical facilities to correctly analyzefor radiological constituents representative of those at DOE sites, theneeded changes were made to the MAPEP program.

Therefore, thefollowing isotopes were removed from the MAPEP program:Soil -gamma -will be provided by Analytics twice per year, starting in2015. For 2014, one soil gamma is provided by MAPEP, the 2nd soilgamma is provided by Analytics. Page 27 of 140 AP -gamma -is currently provided by Analytics.

Water -gamma, H-3, Sr-90, uranium, gross alpha and gross betacurrently provided by ERA.MAPEP evaluates non-reported (NR) analyses as failed if they werereported in the previous series.For the TBE laboratory, 163 out of 169 analyses performed met thespecified acceptance criteria.

Six analyses (Ni-63, K-40 and 1-131 inwater, and two Sr-90s and one Gross Alpha in AP samples) did not meetthe specified acceptance criteria for the following reasons:1. Teledyne Brown Engineering's MAPEP March 2014 Ni-63 in waterresult of 32.7 +/- 1.69 Bq/L was overlooked when reporting the databut would have passed the acceptance range of 23.9 -44.2 Bq/L.NCR 14-042. Teledyne Brown Engineering's MAPEP March 2014 K-40 in waterresult of 1.63 +/- 2.49 Bq/L was overlooked when reporting the databut would have passed the false positive test. NCR 14-043. Teledyne Brown Engineering's ERA November 2014 1-131 in waterresult of 15.8 pCi/L was lower than the known value of 20.3 pCi/L,falling below the lower acceptance limit of 16.8. The result wasevaluated as failed with a found to known ratio of 0.778. No causecould be found for the slightly low result. All previous ERA 1-131evaluations since 2004 have been acceptable.

NCR 14-084. Teledyne Brown Engineering's MAPEP March 2014 Sr-90 in APresult of 0.822 Bq/sample was lower than the known value of 1.18Bq/sample, falling below the lower acceptance limit of 0.83Bq/sample.

The rerun result was still low, but fell within the loweracceptance range of 0.836 Bq/sample.

The rerun result wasstatistically the same number as the original result. No cause couldbe found for the slightly low results.

NCR 14-045. Teledyne Brown Engineering's MAPEP September 2014 Sr-90 inAP result of 0.310 Bq/sample was lower than the known value of0.703 Bq/sample.

The gravimetric yield of 117% was very high (wenormally see yields of 60% to 70%) and could account for the lowactivity.

NCR 14-096. Teledyne Brown Engineering's MAPEP September 2014 Gr-Alphain AP result of 0.153 Bq/sample was lower than the known value of0.53 Bq/sample.

The AP sample was counted on the wrong side.The AP was flipped over and recounted with acceptable results.NCR 14-09-20 -Page 28 of 140 V. References

1. American National Standards Institute, Inc., "Performance, Testing andProcedural Specifications for Thermoluminescent Dosimetry,"

ANSI N545-1975.2. Code of Federal Regulations, Title 10, Part 20 (Nuclear Regulatory Commission).

3. CPS 2014 Annual Radioactive Effluent Release Report.4. "Environmental Radioactivity,"

M. Eisenbud, 1987 (E187).5. "Natural Radon Exposure in the United States,"

Donald T. Oakley, U.S.Environmental Protection Agency. ORP/SID 72-1, June 1972.6. Federal Radiation Council Report No. 1, "Background Material for theDevelopment of Radiation Protection Standards,"

May 13, 1960.7. International Commission on Radiation Protection, Publication 2, "Reportof Committee II on Permissible Dose for Internal Radiation,"

(1959) with1962 Supplement issued in ICRP Publication 6; Publication 9,"Recommendations on Radiation Exposure,"

(1965); ICRP Publication 7(1965), amplifying specific recommendations of Publication 26 (1977).8. International Commission on Radiation Protection, Publication No. 39(1984), "Principles of Limiting Exposure to the Public to Natural Sourcesof Radiation".

9. "Radioactivity in the Environment:

Sources, Distribution andSurveillance,"

Ronald L. Kathren, 1984.10. National Council on Radiation Protection and Measurements, Report No.22, "Maximum Permissible Body Burdens and Maximum Permissible Concentrations of Radionuclides in Air and Water for Occupational Exposure,"

(Published as National Bureau of Standards Handbook 69,issued June 1959, superseding Handbook 52).11. National Council on Radiation Protection and Measurements, Report No.39, "Basic Radiation Protection Criteria,"

January 1971.12. National Council on Radiation Protection and Measurements, Report No.44, "Krypton-85 in the Atmosphere

-Accumulation, Biological Significance, and Control Technology,"

July 1975.13. National Council on Radiation Protection and Measurements, Report No.91, "Recommendations on Limits for Exposure to Ionizing Radiation,"

June 1987.14. National Council on Radiation Protection and Measurements, Report No.93, "Ionizing Radiation Exposure of the Population of the United States,"September 1987.-21 -Page 29 of 140

15. National Research

Council, 1990, Committee on Biological Effects ofIonizing Radiation (BEIR V), Board on Radiation Effects Research on LifeSciences, "The Effects of Exposure to Low Levels of Ionizing Radiation".

16. United States Nuclear Regulatory Commission, Regulatory Guide 4.1,"Programs for Monitoring Radioactivity in the Environs of Nuclear PowerPlants,"

Revision 1, April 1975.17. United States Nuclear Regulatory Commission, Regulatory Guide 4.13,"Performance, Testing and Procedural Specifications forThermoluminescence Dosimetry:

Environmental Applications, "Revision 1, July 1977.18. United States Nuclear Regulatory Commission, Regulatory Guide 1.109,"Calculation of Annual Dose to Man from Routine Releases of ReactorEffluents for the Purpose of Evaluating Compliance with 1 OCFR Part 50,Appendix I, "Revision 1, October 1977.19. United States Nuclear Regulatory Commission Branch Technical

Position, "An Acceptable Radiological Environmental Monitoring Program,"

Revision 1, November 1979.20. United States Nuclear Regulatory Commission, Regulatory Guide 4.15,"Quality Assurance for Radiological Monitoring Programs (NormOperations)

-Effluent Streams and the Environment,"

Revision 1,February 1979.21. Technical Specifications, Clinton Power Station, Unit No. 1, Docket No.50-461, Office of Nuclear Reactor Regulation, 1986. Facility Operating License Number NPF-62.22. Clinton Power Station, Updated Safety Analysis Report.23. Clinton Power Station, Unit 1, Off-Site Dose Calculation Manual.-22 -Page 30 of 140 APPENDIX ARADIOLOGICAL ENVIRONMENTAL MONITORING REPORT SUMMARYPage 31 of 140 Intentionally left blankPage 32 of 140 TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS SURFACE WATER(PCI/LITER) 1-131H-3121647<LLDNA02000 <LLD<LLDGAMMABE-7K-40MN-54CO-58FE-59CO-60ZN-65NA <LLDNA 50(3/24)(27/80)15 <LLD15 <LLD30 <LLD15 <LLD30 <LLD<LLD68(3/23)(52/93)<LLD<LLD<LLD<LLD93(1/11)CL-99 CONTROLNORTH FORK ACCESS3.5 MILES NNE OF SITE000000<LLD0THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS SURFACE WATER(PCI[LITER)

NB-95ZR-95CS-134CS-137BA-140LA-140CE-14415 <LLD30 <LLD15 <LLD18 <LLD60 <LLD15 <LLDNA <LLD4 <LLD2000 <LLDI <LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD0000000000DRINKING WATER(PCI/LITER)

CDC0GR-BH-31-131124NANANA12THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS DRINKING WATER(PCI/LITER)

GAMMABE-712K-40MN-54CO-58FE-59CO-60ZN-65NB-95ZR-95CS-134NA <LLDNA <LLD15 <LLD15 <LLD30 <LLD15 <LLD30 <LLD15 <LLD30 <LLD15 <LLDNANANANANANANANANANA000000000THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS DRINKING WATER(PCI/LITER)

CS-137BA-140LA-140CE-144WELL WATER(PCI/LITER)

H-3121218 <LLD60 <LLD15 <LLDNA <LLD2000 <LLDNA <LLDNA 30(1/12)15 <LLD15 <LLD30 <LLDNANANANANA00000GAMMABE-7K-40-wrio00MN-54CO-58FE-59NANANANANA30(1/4)CL-7D INDICATOR MASCOUTIN RECREATION AREA2.3 MILES ESE OF SITE00000THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS WELL WATER(PCI/LITER)

CO-60ZN-65NB-95ZR-95CS-134CS-137BA- 140LA-140CE-14415 <LLD30 <LLD15 <LLD30 <LLD15 <LLD18 <LLD60 <LLD15 <LLDNA <LLDNANANANANANANANANA000000tieFISH(PCI/KG WET)GAMMBE-7IA16NA <LLD <LLDTHE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)0 TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS FISH(PCI/KG WET)K-40NA 3586(8/8)(2218/4885) 3447(8/8)(3073/4029) 3586(8/8)(2218/4885)

CL-I 9 INDICATOR END OF DISCHARGE FLUME3.4 MILES E OF SITEMN-54CO-58FE-59CO-60ZN-65NB-95ZR-95CS-134CS-137130 <LLD130 <LLD260 <LLD130 <LLD260 <LLDNA <LLDNA <LLD130 <LLD150 <LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD0000000000"oC)0THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS FISH(PCI/KG WET)SEDIMENT(PCI/KG DRY)BA-140LA-140CE-144GAMMABE-7NA <LLDNA <LLDNA <LLDNA <LLD<LLD<LLD<LLD0004<LLDK-40MN-54CO-58FE-59CO-60NA 7644(2/2)(7231/8056)

NA <LLDNA <LLD8574(2/2)(7515/9633) 8574(2/2)(7515/9633)

CL-105 CONTROLLAKE SHELBYVILLE 50 MILES S OF SITE<LLD<LLD<LLD<LLD000000OronwNA <LLDNA <LLDTHE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS SEDIMENT(PCI/KG DRY)ZN-65NB-95ZR-95CS-13400CS-137BA- 140LA- 140CE-144NA <LLDNA <LLDNA <LLD150 <LLD180 <LLDNA <LLDNA <LLDNA <LLD10 18(468/468)

(7/64)<LLD<LLD<LLD<LLD00<LLD<LLD<LLD<LLD19(52/52)(8/32)00IOAIR PARTICULATE (E-3 PCI/CU.METER)

GR-B52019(52/52)(10/64)CL-3 INDICATOR CLINTON'S SECONDARY ACCESS ROAD0.7 MILES NE OF SITETHE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCI/CU. METER)GAMMABE-740K-40CO-60NB-95ZR-95RU-103RU-106CS-134CS-137NA 63(34/36)(37/93)NA 23(1/36)NA <LLDNA <LLDNA <LLDNA <LLDNA <LLD50 <LLD60 <LLD57(4/4)(48/64)29(1/4)<LLD<LLD<LLD<LLD<LLD<LLD<LLD67(4/4)(49/93)CL-8 INDICATOR DEWITT CEMETERY2.2 MILES E OF SITE29(1/4)CL-I 1 CONTROLILLINOIS POWER SUBSTATION 16 MILES S OF SITE0000000THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS AIR PARTICULATE (E-3 PCI/CU.METER)

CE-141CE-144GAMMA1-131NA <LLDNA <LLD<LLD<LLD00AIR IODINE(E-3 PCI/CU.METER)

MILK(PCI/LITER) 5201-1311919GAMMABE-770 <LLDI NANA NANA NANA NANA NANA NA<LLD<LLD00<LLDK-401200(19/19)(1034/1294) 1200(19/19)(1034/1294)

CL-I 16 CONTROLPASTURE IN RURAL KENNEY14 MILES WSW OF SITEMN-54CO-58FE-59<LLD<LLD<LLD00000THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS MILK(PCI/LITER)

CO-60ZN-65NB-95ZR-95CS-134CS-137BA-140LA-140CE-144NA NANA NANA NANA NA15 NA18 NA60 NA15 NANA NA<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD00000000CL07THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS VEGETATION (PCI/KG WET)GAMMABE-748NA 547(30/36)(156/1656)

NA 5144(36/36)(2725/8897) 464(10/12)(205/922) 5415(12/12)(3581/8465) 696(9/12)(318/1656) 5415(12/12)(3581/8465)

CL-I 15 INDICATOR SITE'S SECONDARY ACCESS ROAD0.7 MILES NE OF SITECL-I 14 CONTROLCISCO12.5 MILES SSE OF SITEK-40I'MN-54CO-58FE-59CO-60ZN-65NB-95ZR-95NA <LLDNA <LLDNA <LLDNA <LLDNA <LLDNA <LLDNA <LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD000000000(10C0THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS VEGETATION (PCI/KG WET)1-131CS-134CS-137BA-140LA-140CE-144GAMMABE-760 <LLD60 <LLD80 <LLDNA <LLDNA <LLDNA <LLD<LLD<LLD<LLD<LLD<LLD<LLD00000GRASS(PCI/KG WET)52O0TK-40NA 1956(39/39)(371/5198)

NA 5566(39/39)(2380/8596)

NA <LLD1671(13/13)(500/4173) 5330(13/13)(4129/6425) 2545(13/13)(518/5198) 6409(13/13)(5212/8596)

CL-02 INDICATOR CLINTON'S MAIN ACCESS ROAD0.7 MILES NNE OF SITECL-08 INDICATOR DEWITT CEMETERY2.2 MILES E OF SITEMN-54<LLD0THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBEROF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS GRASS(PCI/KG WET)CO-58FE-59CO-60ZN-65NB-95ZR-95NA <LLDNA <LLDNA <LLDNA <LLDNA <LLDNA <LLD60 <LLD60 <LLD80 <LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD0001-131IV0oCS-134CS-137000THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL SUMMARY FORTHE CLINTON POWER STATION, 2014NAME OF FACILITY:

CLINTON POWER STATION DOCKET NUMBER: 50-461 2014LOCATION OF FACILITY:

DEWITT COUNTY, IL REPORTING PERIOD:INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)LOCATIONS LOCATIONMEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OFPATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTEDMEASUREMENT)

(LLD) MEASUREMENTS GRASS(PCI/KG WET)BA-140LA-140CE-144NA <LLDNA <LLDNA <LLDNA 22.3(211/211)

(17.3/26.8)

<LLD<LLD<LLD0000DIRECT RADIATION (MILLIREM/QTR.)

DLR-QUARTERLY 21521.0(4/4)(20.6/21.5) 24.4(4/4)(22.7/25.9)

CL-23 INDICATOR 0.5 MILES ENEIT~a-400THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUESFRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

Intentionally left blankPage 48 of 140 APPENDIX BLOCATION DESIGNATION, DISTANCE

& DIRECTION, ANDSAMPLE COLLECTION

& ANALYTICAL METHODSPage 49 of 140 Intentionally left blankPage 50 of 140 TABLE B-1: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, ClintonPower Station, 2014Location Location Description Distance

& Direction From SiteA. Surface WaterCl-1 3CL-90CL-91CL-99Salt Creek Bridge on Rt. 10 (indicator)

Discharge Flume (indicator)

Parnell Boat Access (control)

North Fork Access (control) 3.6 miles SW0.4 miles SE6.1 miles ENE3.5 miles NNEB. Drinking (Potable)

WaterCL-14C. Well WaterStation Plant Service Bldg (indicator)

Mascoutin Recreation Area (indicator)

DeWitt Pump House (indicator)

OnsiteCL-7DCL-12TCL-12RD. Milk -bi-weekly

/ monthlyCL-116Dement Dairy (control)

E. Air Particulates

/ Air IodineCL-1CL-2CL-3CL-4CL-6CL-7CL-8CL-11CL-15CL-94Camp QuestClinton's Main Access RoadClinton's Secondary Access RoadResidence Near Recreation AreaClinton's Recreation AreaMascoutin Recreation AreaDeWitt CemeteryIllinois Power Substation (control)

Rt. 900N Residence Old Clinton RoadEnd of Discharge Flume (indicator)

Lake Shelbyville (control)

F. Fish2.3 miles ESE1.6 miles E1.6 miles E14 miles WSW1.8 miles W0.7 miles NNE0.7 miles NE0.8 miles SW0.7 miles WSW2.3 miles SE2.2 miles E16 miles S0.9 miles N0.6 miles E3.4 miles E50 miles S2.1 miles SE50 miles S12.5 miles SSE0.7 miles NE0.9 miles N0.7 miles NNE1.8 miles W0.7 miles NNE2.2 miles E14 miles WSWCL-19CL-105G. Shoreline SedimentCL-7B Clinton Lake (indicator)

CL-105 Lake Shelbyville (control)

H. Food ProductsCL-114CL-115CL-117CL-118I. GrassCisco (Control)

Site's Secondary Access RoadResidence North of SiteSite's Main Access RoadCamp QuestClinton's Main Access RoadDeWitt CemeteryPasture in Rural Kenney (control)

CL-1CL-2CL-8CL-116B-1Page 51 of 140 TABLE B-i: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, ClintonPower Station, 2014Location Location Description Distance

& Direction From SiteJ. Environmental Dosimetry

-DLRInner RingCL-1 1.8 miles WCL-5 0.7 miles NNECL-22 0.6 miles NECL-23 0.5 miles ENECL-24 0.5 miles ECL-34 0.8 miles WNWCL-35 0.7 miles NWCL-36 0.6 miles NCL-42 2.8 miles ESECL-43 2.8 miles SECL-44 2.3 miles SSECL-45 2.8 miles SCL-46 2.8 miles SSWCL-47 3.3 miles SWCL-48 2.3 miles WSWCL-63 1.3 miles NNWOuter RingCL-51 4.4 miles NWCL-52 4.3 miles NNWCL-53 4.3 miles ECL-54 4.6 miles ESECL-55 4.1 miles SECL-56 4.1 miles SSECL-57 4.6 miles SCL-58 4.3 miles SSWCL-60 4.5 miles SWCL-61 4.5 miles WSWCL-76 4.6 miles NCL-77 4.5 miles NNECL-78 4.8 miles NECL-79 4.5 miles ENECL-80 4.1 miles WCL-81 4.5 miles WNWB-2Page 52 of 140 TABLE B-i: Radiological Environmental Monitoring Program -Sampling Locations, Distance and Direction, ClintonPower Station, 2014Location Location Description Distance

& Direction From SiteJ. Environmental Dosimetry

-DLR (cont.)Special InterestCL-37 3.4 miles NCL-41 2.4 miles ECL-49 3.5 miles WCL-64 2.1 miles WNWCL-65 2.6 miles ENECL-74 1.9 miles WCL-75 0.9 miles NSupplemental CL-2 0.7 miles NNECL-3 0.7 miles NECL-4 0.8 miles SWCL-6 0.8 miles WSWCL-7 2.3 miles SECL-8 2.2 miles ECL-15 0.9 miles NCL-33 11.7 miles SWCL-84 0.6 miles ECL-90 0.4 miles SECL-91 6.1 miles ENECL-97 10.3 miles SWCL-99 3.5 miles NNECL-1 14 12.5 miles SEControlCL-11 16 miles SB-3Page 53 of 140 TABLE B-2:Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical

Methods, Clinton Power Station, 2014Sample Analysis Sampling Method Analytical Procedure NumberMediumSurface Gamma Monthly composite TBE, TBE-2007 Gamma emitting radioisotope analysisWater Spectroscopy from a continuous water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualSurface Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquidWater from a continuous scintillation water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualSurface 1-131 Monthly composite TBE, TBE-2012 Radioiodine in various matricesWater from a continuous water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualDrinking Gross Beta Monthly composite TBE, TBE-2008 Gross Alpha and/or gross beta activity inWater from a continuous various matriceswater compositor.

Env. Inc., SPM-1 Sampling Procedure ManualDrinking Gamma Monthly composite TBE, TBE-2007 Gamma emitting radioisotope analysisWater Spectroscopy from a continuous water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualDrinking Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquidWater from a continuous scintillation water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualDrinking 1-131 Quarterly composite TBE, TBE-2031 Radioactive Iodine in Drinking WaterWater from a continuous water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualWell Water Gamma Quarterly composite TBE, TBE-2007 Gamma emitting radioisotope analysisSpectroscopy from a continuous water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualWell Water Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquidfrom a continuous scintillation water compositor.

Env. Inc., SPM-1 Sampling Procedure ManualFish Gamma Semi-annual samples TBE-2007 Gamma emitting radioisotope analysisSpectroscopy collected viaelectroshocking orother techniques Env. Inc., SPM-1 Sampling Procedure ManualAir Gross Beta One-week composite TBE, TBE-2008 Gross Alpha and/or gross beta activity inParticulates of continuous air various matricessampling through glassfiber filter paper Env. Inc., SPM-1 Sampling Procedure ManualAir Gamma Quarterly composite of TBE, TBE-2007 Gamma emitting radioisotope analysisParticulates Spectroscopy each stationEnv. Inc., SPM-1 Sampling Procedure ManualAir Iodine Gamma One-week composite TBE, TBE-2007 Gamma emitting radioisotope analysisSpectroscopy of continuous airsampling through Env. Inc., SPM-1 Sampling Procedure Manualcharcoal filterMilk 1-131 Bi-weekly grab sample TBE, TBE-2012 Radioiodine in various matriceswhen cows are onpasture.

Monthly allother times Env. Inc., SPM-1 Sampling Procedure ManualMilk Gamma Bi-weekly grab sample TBE-2007 Gamma emitting radioisotope analysisSpectroscopy when cows are onpasture.

Monthly allother times Env. Inc., SPM-1 Sampling Procedure ManualB-4Page 54 of 140 TABLE B-2: Radiological Environmental Monitoring Program -Summary of Sample Collection and Analytical

Methods, Clinton Power Station, 2014Sample Analysis Sampling Method Analytical Procedure NumberMediumFood Gross Beta Monthly grab June TBE, TBE-2008 Gross Alpha and/or gross beta activity inProducts through September various matricesEnv. Inc., SPM-1 Sampling Procedure ManualFood Gamma Monthly grab June TBE, TBE-2007 Gamma emitting radioisotopes analysisProducts Spectroscopy through September Env. Inc., SPM-1 Sampling Procedure ManualGrass Gamma Biweekly May through TBE, TBE-2007 Gamma emitting radioisotopes analysisSpectroscopy OctoberEnv. Inc., SPM-1 Sampling Procedure ManualDLR Optically Stimulated Quarterly DLRs Landauer Incorporated Luminescence comprised of twoDosimetry Ai203:C LandauerIncorporated elements.

B-5Page 55 of 140 Figure B-1Environmental Sampling Locations Within OneMile of the Clinton Power Station, 2014B-6Page 56 of 140 Figure B-2Environmental Sampling Locations Between One and TwoMiles of the Clinton Power Station, 2014B-7Page 57 of 140 B-8 Page 58 of 140 Figure B-4Enwonmental Samping Locations Greater Than FiveMiles of the Clinton Power Station, 2014B-9Page 59 of 140 Intentionally left blankPage 60 of 140 APPENDIX CDATA TABLES AND FIGURES -PRIMARY LABORATORY Page 61 of 140 Intentionally left blankPage 62 of 140 Table C-1.1.CONCENTRATIONS OF 1-131 IN SURFACE WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACL-90UCOLLECTION PERIOD12/26/13

-01/29/1401/29/14

-02/26/1402/26/14

-03/26/1403/26/14

-04/30/1404/30/14

-05/28/14 (1)05/28/14

-06/25/1406/25/14

-07/30/1407/30/14

-08/27/1408/27/14

-09/24/1409/24/14

-10/29/1410/29/14

-11/26/14 (1)11/26/14

-12/31/14* 0.7< 0.8< 0.7* 0.7< 0.8< 0.5< 0.5< 0.5< 0.5< 0.5< 0.5< 0.8MEANTable C-I.2CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMAUCOLLECTION PERIOD12/26/13

-03/26/1403/26/14

-06/25/1406/25/14

-09/24/1409/24/14

-12/31/14CL-90CL-13CL-91CL-99< 189< 187< 183< 189 (1)189187183184< 188< 185 (1)< 184 (1)< 186< 189 (1)< 184< 183< 187MEAN(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1Page 63 of 140 Table C-I.3CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMASITE COLLECTION PERIODCL-13 01/29/14

-01/29/1402/26/14

-02/26/1403/26/14

-03/26/1404/30/14

-04/30/1405/28/14

-05/28/1406/25/14

-06/25/1407/30/14

-07/30/1408/27/14

-08/27/1409/24/14

-09/24/1410/29/14

-10/29/1411/26/14

-11/26/1412/31/14

-12/31/14Be-7K-40 Mn-54Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137Ba-140 La-140Ce-144< 40< 39< 33< 20* 56< 38< 40< 34<44< 53< 49* 51< 77< 75< 6141 + 33< 63< 75< 75< 36< 84< 55< 88< 44<4<4<3<2<5<6<4<4<5<7<5<6MEAN<4<4<3<2<6<5<4<4<5<6<4<5<4<4<2<2<6<5<6<4<4<6<3<7101085141010910121113109641191391011916<4<5<3<2<6<6<4<4<5<6<5<6<4<4<3<2<7<5<5<4<3<6<5<7< 12<8<6<4<11<8<9<9<8< 11< 11<10<8<.9<4<4< 10<9< 10< 10<9<13<7< 12<4<5<3<2<6<5<6<5<6<6<5<8<5<4<3<2<6<6<6<5<5<6<5<7<8<8<7<4< 12< 10<9<7<8< 12<11< 11<9<8<4<4<9<7< 11<8<7< 10<8< 10<4<4<3<2<6<5<5<4<5<6<4<5<5<4<2<2<5<5<6<5<5<5<5<8<4<4<3<2<7<5<5<4<5<5<5<6<6<4<2<2<7<6<6<5<4<7<4<6< 24* 24< 31< 16< 23< 23< 31< 18< 34< 31< 30< 33< 24< 29< 23< 14< 26* 22< 33* 24* 29* 25< 26< 33<7< 12<8<5< 10<4<10<7< 10<7<7<8<6< 10<7<5<9<6< 11<7<9<10<6< 14< 40* 28< 24<15< 43* 36< 35< 26< 39< 46< 39< 42r)CL-90 12/26/13

-01/29/1401/29/14

-02/26/1402/26/14

-03/26/1403/26/14

-04/30/1404/30/14

-05/28/1405/28/14

-06/25/1406/25/14

-07/30/1407/30/14

-08/27/1408/27/14

-09/24/1409/24/14

-10/29/1410/29/14

-11/26/1411/26/14

-12/31/14< 42< 37< 25< 18(1) < 53< 46< 51< 41< 43< 56(1) < 42< 65< 102 < 4<47 < 4<67 <227 +/- 27 < 2<67 <6<62 <5<91 <580 +/-48 <4<38 <4< 117 < 6<91 <4< 72 < 6383317143442444234403750MEAN54 +/- 75-wriTHE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION Table C-1.3CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMASITE COLLECTION PERIODCL-91 12/26/13

-01/29/1401/29/14

-02/26/1402/26/14

-03/26/1403/26/14

-04/30/1404/30/14

-05/28/1405/28/14

-06/25/1406/25/14

-07/30/1407/30/14

-08/27/1408/27/14

-09/24/1409/24/14

-10/29/1410/29/14

-11/26/1411/26/14

-12/31/14Be-7K-40 Mn-54Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137Ba-140 La-140Ce-144< 42< 39< 27< 14(1) < 48< 35< 46< 23(1) < 39< 47< 44< 55< 46< 30< 5352 +/- 27* 106< 4658 +/- 46* 27< 36< 95* 86< 57MEAN55 +/- 9<5<5<3<1<5<4<5<3<4<4<4<6<5<3<2<4<7<6<4<4<7<5<5< 5<4<3<1<5<4<5<3<4<6<5<6<4<3<2<5<8<5<4<4<6<6<6< 10<9<6<3<8< 10<11<7<7<8* 10* 13<9<9<4<9* 14* 12<9<10* 14<11<13<4<5<3<2<7<5<5<3<3<5<4<6<5<4<2<5<7<5<4<4<7<5<5< 10<8<5<2<10<8<10<6<7<8<8<12<9<7<4<10<14<8<7<9<10<11<13<4<5<3<2<5<5<5<3<5<5<4<5<4<4<2<4<7<4<4<5<6<5<6< 8<9<5<3<9<8< 10<5<8<9<9< 10<8<6<3<9< 13<8<7<7<11<8< 12< 5<4<3<1<5<4<5<3<4<5<4<5<4<3<2<4<6<5<3<4<7<5<7< 5<4<3<1<6<5<5<3<4<5<5<6<5<3<2<5<6<6<5<4<8<5<6< Z3< 34* 25* 10* 21* 20* 32* 14* 32* 24* 26* 28* 18* 29< 14* 23* 29* 30* 20* 28* 32* 29< 33<9<7<3<8<7<10<4<7<7<8<11<7<7<5<6<11< 15<6<11<9<10* 10* 40< 33* 21<12* 38< 35* 40* 24< 37< 37< 39< 45* 31* 18* 13< 37* 40* 32* 32< 35* 88* 38* 56CL-99 01/15/1401/29/1403/12/1403/26/1404/30/1405/28/1406/25/1407/30/1408/27/1409/24/1410/29/1411/26/14-01/29/14-02/26/14-03/26/14-04/30/14-05/28/14-06/25/14-07/30/14-08/27/14-09/24/14-10/29/14-11/26/14-12/31/14(1)(1)(1)< 37* 30* 17< 42< 54< 33< 35< 39< 59< 41* 60< 53* 71* 15* 87< 60< 97* 51< 4293 +/- 55* 85* 56MEANTHE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION O*q0'cy,0 1 Table C-I1.1CONCENTRATIONS OF GROSS BETA IN DRINKING WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACL-14COLLECTION PERIOD12/26/13

-01129/1401/29/14

-02/26/1402/26/14

-03/26/1403/26/14

-04/30/1404/30/14

-05/28/1405/28/14

-06/25/1406/25/14

-07/30/1407/30/14

-08/27/1408/27/14

-09/24/1409/24/14

-10/29/1410/29/14

-11/26/1411/26/14

-12/31/14< 1.5< 1.6< 1.5< 1.6(1) < 1.3< 1.6< 1.7< 1.5< 1.7< 1.6(1) < 1.8< 1.5MEANTable C-11.2CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACOLLECTION PERIODCL-1401/15/14 03/26/1403/26/14

-06/25/1406/25/14

-09/24/1409/24/14

-12/31/14(1)(1)< 188< 184< 185< 190MEANTable C-11.3CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACOLLECTION PERIOD12/26/13

-01/29/1401/29/14

-02/26/1402/26/14

-03/26/1403/26/14

-04/30/1404/30/14

-05/28/1405/28/14

-06/25/1406/25/14

-07/30/1407/30/14

-08/27/1408/27/14

-09/24/1409/24/14

-10/29/1410/29/14

-11/26/1411/26/14

-12/31/14CL-14< 0.9< 0.7< 0.8< 0.8(1) < 0.8< 0.6< 0.5< 0.7< 0.6< 0.6(1) < 0.5< 0.8MEAN(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-4Page 66 of 140 Table C-11.4CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMASITE COLLECTION PERIODCL-14 12/26/13

-01/29/1401/29/14

-02/26/1402/26/14

-03/26/1403/26/14

-04/30/1404/30/14

-05/28/1405/28/14

-06/25/1406/25/14

-07/30/1407/30/14

-08/27/1408/27/14

-09/24/1409/24/14

-10/29/1410129/14

-11/26/1411/26/14

-12/31/14Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Ce-144< 33< 54< 27< 21(1) < 38< 63< 48< 33< 43< 71(1) < 52< 50< 31< 110< 22< 22< 85< 133< 100< 32< 93< 56< 123< 44<4<6<2<2<4<6<5<4<4<6<5<5<4<7<3<3<4<8<4<4<4<7<5<6<8< 12<5<6<7< 15< 11<8< 12< 11* 10< 13<4<7<3<3<3<8<4<4<5<7<5<5<7< 11<5<5<9< 12< 11<9< 10< 10< 12<1347334954576771254715107912913<4<7<2<2<4<6<5<4<5<7<5<6<3<7<3<2<5<8<5<4<5<7<6<6< 17* 32< 23< 18< 21* 28< 32* 20< 33* 30< 24* 25<6< 11<5<6<6< 12< 10<5< 11< 11<8< 15< 35< 39< 21< 12< 32< 52< 38< 27< 38< 57< 49< 32MEAN(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION 0=

Table C-II1.1CONCENTRATIONS OF TRITIUM IN WELL WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACOLLECTION PERIODCL-12RCL-12TCL-7D03/26/14

-03/26/1406/25/1409/24/1412/31/14-06/25/14-09/24/14-12/31/14< 168< 165< 180< 178< 164< 167< 179< 183< 168< 165< 178< 182MEANC-6Page 68 of 140 Table C-111.2CONCENTRATIONS OF GAMMA EMITTERS IN WELL WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMASITE COLLECTION Be-7PERIODCL-12R 03/26114

< 1606/25/14

< 6309/24/14

< 4612/31/14

< 68K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Ce-144< 31* 63< 47* 76<2<5<5<8MEANCL-12T 03/26/1406/25/1409/24/1412/31/14< 21 < 39< 50 < 97< 46 < 69< 68 < 902757<2<7<5<8<2<6<4<6<2<5<5<8<4 <2<12 <6<11 <5<14 <85121113<2<5<5<8<3 <2<16 <7<9 <5<15 <8<4 <2<13 <6<10 <5<17 <7<4 <2<11 <6<9 <6<14 <8<3 <2<12 <7<8 <5<14 <8<4 <2<10 <6<8 <4<10 <7<4 <2<10 <5<9 <4<14 <72848MEAN26652657<12 <4 << 33 < 11 << 34 <8 << 37 < 10 <* 20* 27< 33* 28<6<6<10*13125235511752375015383851CL-7D 03/26/1406/25/1409/24/1412/31/14*18< 54* 46* 5830 +/- 2757531262557<4 <2<10 <6<11 <4<14 <7<15 <4 <<23 <8 <<37 < 11 << 34 < 9 <MEANaq00 Table C-IV.1CONCENTRATIONS OF GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITYOF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMASITECOLLECTION Be-7PERIODK-40 Mn-54 Co-58Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137Ba-140 La-140 Ce-144CL-105bluegillcarpcrappielargemouth bassbluegillcarplargemouth basswhite bassCL-19bluegillcarpchannel catfishlargemouth bassbluegillcarpchannel catfishlargemouth bass05/05/1405/05/1405/05/1405/05/1410/01/1410/01/1410/01/1410/01/14MEAN05/05/1405/05/1405/05/1405/05/1410/01/1410/01/1410101/1410/01/14MEAN* 763< 643< 789< 458< 551< 511< 795< 627402932013550379030733166331534501357815103784782881811311029< 76< 68* 76< 47< 61< 55< 73< 61< 89< 60< 78< 58< 56< 57< 81< 67< 183< 129< 224< 134< 136< 143< 172< 186< 75< 58< 51< 57< 63< 63< 71< 74< 173< 126< 178< 83< 125< 109< 179< 124< 94< 84< 89< 60< 71< 63< 97< 73< 178< 155< 142< 84< 124< 102< 141< 121< 70< 61< 74< 43< 63< 51< 66< 66< 69< 71< 69< 39< 57< 53< 85< 59< 887< 830< 930< 605< 513< 442< 632< 617< 277< 265< 200< 240< 209< 126< 225< 123< 406< 440< 492< 232< 303< 311* 442< 4173447 +/- 661(-I< 892< 864< 596< 1012< 703< 758< 725< 76336854885297646762536456631452218112313658541271938114410851351< 78< 97< 61< 85< 74< 77< 83< 93< 97< 104< 68< 118< 69< 85< 95< 84< 202< 189< 119* 215< 144< 197< 188< 255< 92< 84< 57< 83< 67< 78< 64< 106< 213< 161< 145< 209< 147< 151< 159< 207< 102< 130< 76< 111< 77* 90< 44< 124< 191< 155< 115< 216< 139< 132< 135< 164< 98< 96< 59< 91< 73< 73< 66< 91< 94< 69< 59< 93< 70< 76< 80< 70< 885< 1151< 772< 1091< 621< 632< 608< 739< 277< 287< 170< 273< 158* 231< 292< 211< 580< 539< 291< 679< 455< 595< 437< 5293586 +/- 2054THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES00; Table C-V.1SITE COLLECTION PERIODCL-07B 05/05/14

<10/01/14

<MEANCL-105 05/05/14

<10/01/14

<MEANCONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMABe-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95375 8056 +/- 996 < 42 < 43 < 109 < 42 < 72 < 47463 7231 +/- 809 < 46 < 47 < 117 < 40 < 127 < 54-7644 +/- 1167 ------352 9633 +/- 1013 < 40 <40 < 90 < 38 < 110 <48356 7515 +/- 752 < 36 < 36 < 94 < 33 < 71 < 37-8574 +/- 2995 ------Zr-95 Cs-134 Cs-137 Ba-140 La-140 Ce-144< 81 < 40 < 49 < 262 < 52 < 272< 97 < 49 < 44 < 588 < 147 < 283< 84 < 43 < 45 < 233 < 77 < 240< 56 < 30 < 35 < 429 < 122 < 200Z-Zi-JTHE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES Table C-VI.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF E-3 PCI/CU METER +/-2 SIGMACOLLECTION GROUP IPERIOD CL-2 CL-3 CL-4 CL-6 CL-15 CL-9401/01/14

-01/08/14 24 +/-5 24 +/-5 21 +/- 4 25 +/-5 22 +/-4 25 +/-501/08/14

-01/15/14 25 +/- 5 22 +/- 5 22 +/- 5 17 +/- 4 18 +/- 5 25 +/- 501/15/14

-01/22/14 18 +/-4 18 +/-4 18 +/-4 22 +/-5 22 +/-5 20 +/-401/22/14

-01/29/14 14 +/-4 15 +/-4 12 +/-4 14 +/-4 16 +/-4 16+/- 401/29/14

-02/05/14 24 +/-5 24 +/-5 21 +/-4 23 +/-5 25 +/-5 18+/- 402/05/14

-02/12/14 25 +/-6 20 +/-5 23 +/-5 21 +/-5 23 +/-5 26+/- 502/12/14-02/19/14 28 +/-6 28 +/-5 26 +/-5 30 +/-5 27 +/-5 33 +/-502/19/14

-02/26/14 19 +/-5 16 +/-4 18 +/-4 20 +/-5 17 +/-4 18+/- 402/26/14-03/05/14 33 +/-6 25 +/-5 29 +/-5 29 +/-5 27 +/-5 22+/- 403/05/14

-03/12/14 21 +/- 5 23 +/- 5 19 +/- 5 24 +/- 5 18 +/- 5 23 +/- 503/12/14

-03/19/14 12 +/- 4 16 +/- 4 15 +/- 4 11 +/- 4 18 +/- 4 15 +/- 403/19/14

-03/26/14 17 +/-4 17 +/-4 16 +/-4 16 +/-4 12 +/-4 17+/- 403/26/14

-04/02/14 14 +/-4 16 +/-4 19 +/-4 20 +/-5 18 +/-4 14 +/-404/02/14

-04/09/14 17 +/- 5 13 +/- 4 11 +/- 4 9 +/- 4 10 +/- 4 8 +/- 404/09/14

-04/16/14 15 +/-4 15 +/-4 16 +/-4 14 +/-4 14 +/-4 16 +/-404/16/14

-04/23/14 18 +/-4 19 +/-5 14 +/-4 16 +/-4 16 +/-4 16+/- 404/23/14

-04/30/14 8 +/- 4 11 +/- 4 11 +/- 4 8 +/- 4 11 +/- 4 7 +/- 404/30/14

-05/07/14 13 +/-4 13 +/-4 10 +/-4 9 +/-4 10 +/-4 7 +/-405/07/14

-05/14/14 16 +/-4 14 +/-4 21 +/- 4 18 +/-4 14 +/-4 15+/- 405/14/14

-05/21/14 10 +/-4 14 +/-4 15 +/-4 14 +/-4 12 +/-4 16+/- 405/21/14

-05/28/14 19 +/- 4 18 +/- 4 18 +/- 4 16 +/- 4 17 +/- 4 11 +/- 405/28/14

-06/04/14 18 +/-4 15 +/-4 17 +/-4 18 +/-4 18 +/-4 17+/- 406/04/14

-06/11114 17 +/- 4 13 +/- 4 15 +/- 4 12 +/- 4 11 +/- 4 16 +/- 406/11/14

-06/18/14 21 +/- 5 18 +/- 5 17 +/- 4 17 +/- 4 16 +/- 4 17 +/- 406/18/14

-06/25/14 13 +/- 4 16 +/- 5 13 +/- 4 15 +/- 4 11 +/- 4 13 +/- 406/25/14

-07/02/14 14 +/- 4 11 +/- 4 9 +/- 4 9 +/- 4 10 +/- 4 10 +/- 407/02/14

-07/09/14 14 +/- 4 10 +/- 4 11 +/- 4 15 +/- 4 19 +/- 4 15 +/- 407/09/14

-07/16/14 14 +/-4 14 +/-4 16 +/-4 14 +/-4 15 +/-4 13+/- 407/16/14-07/23/14 27 +/-5 26 +/-5 23 +/-5 22 +/-4 28 +/-5 25+/- 507/23/14

-07/30/14 12 +/- 4 15 +/- 4 15 +/- 4 16 +/- 4 14 +/- 4 11 +/- 407/30/14-08/06/14 26 +/-5 29 +/-5 27 +/-5 25 +/-5 25 +/-5 31+/- 508/06/14-08/13/14 22 +/-5 20 +/-4 28 +/-5 24 +/-5 21 +/-5 22+/- 408/13/14

-08/20/14 24 +/-5 20 +/-5 22 +/-5 22 +/-5 18 +/-5 18+/- 508/20/14

-08/27/14 20 +/-5 23 +/-5 21 +/-5 22 +/-5 14 +/-4 19+/- 508/27/14

-09/03/14 17 +/-4 15 +/-4 19 +/-4 21 +/-5 18 +/-4 20+/- 409/03/14

-09/10/14 17 +/-4 18 +/-5 15 +/-4 15 +/-4 19 +/-5 12+/- 409/10/14

-09/17/14 11 +/- 4 11 +/- 4 11 +/- 4 12 +/- 4 10 +/- 4 9 +/- 409/17/14

-09/24/14 21 +/-5 18 +/-5 18 +/-4 17 +/-5 22 +/-5 22+/- 509/24/14

-10/01/14 22 +/-4 20 +/-4 22 +/-4 19 +/-4 25 +/-5 22+/- 510/01/14

-10/08/14 15 +/- 4 13 +/- 4 13 +/- 4 12 +/- 4 11 +/- 4 13 +/- 410/08/14

-10/15/14 16 +/-4 13 +/-4 12 +/-4 15 +/-4 12 +/-4 17+/- 410/15/14

-10/22/14 15 +/- 4 12 +/- 4 13 +/- 4 12 +/- 4 11 +/- 4 14 +/- 410/22/14

-10/29/14 22 +/-5 19 +/-5 18 +/-5 21 +/-5 16 +/-5 20+/- 510/29/14

-11/05/14 12 +/- 4 14 +/- 4 13 +/- 4 22 +/- 5 16 +/- 4 15 +/- 411/05/14

-11/12/14 13 +/- 4 16 +/- 4 17 +/- 4 18 +/- 4 16 +/- 4 15 +/- 411/12/14

-11/19/14 18 +/- 4 18 +/- 4 22 +/- 5 18 +/- 4 19 +/- 4 14 +/- 411/19/14

-11/26/14 21 +/- 4 64 +/- 11 (1) 23 +/- 4 22 +/- 4 28 +/- 5 23 +/- 411/26/14

-12/03/14 28 +/- 5 29 +/- 5 27 +/- 5 29 +/- 5 21 +/- 5 27 +/- 512/03/14-12/10/14 34 +/-5 34 +/-5 39 +/-5 37 +/-5 38 +/-5 33 +/-512/10/14

-12/17/14 25 +/-5 25+/- 5 24 +/-5 19 +/-4 20 +/-4 24+/- 512/17/14

-12/24/14 23 +/-5 23 +/-5 22 +/-5 22+/- 5 20 +/-5 19+/- 512/24/14

-12/31/14 19 +/-4 18 +/-4 19 +/-4 17 +/-4 18 +/-4 15+/- 4MEAN 19 +/-11 19 +/-17 18 +/-11 18 +/-12 18 +/-12 18 +/-12(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-10c-i oPage 72 of 140 Table C-VI.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF E-3 PCI/CU METER +/-2 SIGMACOLLECTION GROUP II I GROUP IIIPERIOD CL-1 CL-7 CL-8 CL-1101/01/14

-01/08/14 24 +/- 5 2U +/- 4 25 +/- 5 24 +/- 501/08/14

-01/15/14 20 +/- 5 20 +/- 5 20 +/- 5 21 +/- 501/15/14

-01/22/14 20 +/- 4 20 +/- 4 17 +/- 4 24 +/- 501/22/14

-01/29/14 12 +/- 4 15 +/-4 14 +/- 4 13 +/- 401/29/14

-02/05/14 22 +/- 5 23 +/- 5 21 +/- 5 24 +/- 502/05/14

-02/12/14 20 +/- 4 22 +/- 5 20 +/- 4 24 +/- 502/12/14

-02/19/14 31 +/- 5 28 +/- 5 27 +/- 5 28 +/- 502/19/14

-02/26/14 19 +/- 5 21 +/- 5 20 +/- 5 19 +/- 502/26/14

-03/05/14 27 +/- 5 27 +/- 5 22 +/- 4 31 +/- 503/05/14

-03/12/14 19 +/- 5 19 +/- 5 20 +/- 5 17 +/- 403/12/14

-03/19/14 12 +/- 4 16 +/- 4 16 +/- 4 17 +/- 403/19/14

-03/26/14 14 +/- 4 16 +/- 4 20 +/-4 21 +/- 403/26/14

-04/02/14 13 +/- 4 14 +/-4 12 +/-4 14 +/- 404/02/14

-04/09/14 13 +/- 4 11 +/- 4 9 +/- 4 10 +/- 404/09/14

-04/16/14 9 +/- 4 10 +/-4 18 +/- 4 18 +/- 404/16/14

-04/23/14 19 +/- 5 16 +/-4 18 +/- 4 18 +/- 404/23/14

-04/30/14 11 +/-4 7 +/-4 9 +/- 4 10 +/- 404/30/14

-05/07/14 8 +/- 4 10 +/- 4 12 +/- 4 16 +/- 405/07/14

-05/14/14 15 +/- 4 18 +/- 4 21 +/-4 15 +/- 405/14/14

-05/21/14 15 +/- 4 11 +/- 4 20 +/- 4 14 +/- 405/21/14

-05/28/14 19 +/- 4 14 +/- 4 18 +/- 4 16 +/- 405/28/14

-06/04/14 17 +/- 4 17 +/- 4 18 +/- 4 18 +/- 406/04/14

-06/11/14 14 +/- 4 13 +/- 4 13 +/- 4 15 +/- 406/11/14

-06/18/14 15 +/- 4 18 +/- 4 18 +/- 5 14 +/- 406/18/14

-06/25/14 11 +/- 4 13 +/- 4 13 +/- 4 14 +/- 406/25/14

-07/02/14 13 +/- 4 11 +/- 4 10 +/- 4 11 +/- 407/02/14

-07/09/14 12 +/- 4 14 +/- 4 14 +/- 4 11 +/- 407/09/14

-07/16/14 11 +/- 4 13 +/- 4 13 +/- 4 14 +/- 407/16/14

-07/23/14 26 +/- 5 23 +/- 5 24 +/- 5 28 +/- 507/23/14

-07/30/14 12 +/- 4 11 +/- 4 15 +/- 4 18 +/- 407/30/14

-08/06/14 28 +/- 5 25 +/-5 27 +/-5 32 +/- 508/06/14

-08/13/14 19 +/- 4 22 +/- 4 25 +/- 5 31 +/- 508/13/14

-08/20/14 22 +/- 5 15 +/- 4 15 +/- 4 24 +/- 508/20/14

-08/27/14 19 +/- 5 16 +/- 4 21 +/- 5 15 +/- 408/27/14

-09/03/14 19 +/- 4 13 +/- 4 15 +/- 4 16 +/- 409/03/14

-09/10/14 16 +/-4 12 +/-4 16 +/- 4 14 +/- 409/10/14

-09/17/14 14 +/- 4 11 +/- 4 14 +/- 4 8 +/- 409/17/14

-09/24/14 19 +/- 5 18 +/- 4 20 +/- 5 23 +/- 509/24/14

-10/01/14 22 +/-4 22 +/- 5 28 +/- 5 25 +/- 510/01/14

-10/08/14 12 +/- 4 13 +/- 4 11 +/- 4 14 +/- 410/08/14

-10/15/14 16 +/- 4 12 +/- 4 16 +/- 4 9 +/- 410/15/14

-10/22/14 12 +/- 4 12 +/- 4 12 +/- 4 14 +/- 410/22/14

-10/29/14 20 +/- 5 19 +/- 5 18 +/- 5 17 +/- 510/29/14

-11/05/14 17 +/- 4 15 +/- 4 17 +/- 4 15 +/- 411/05/14

-11/12/14 16 +/- 4 13 +/- 4 18 +/- 4 12 +/- 411/12/14

-11/19/14 16 +/- 4 19 +/- 5 17 +/- 5 22 +/- 511/19/14

-11/26/14 20 +/- 4 21 +/- 4 27 +/- 5 26 +/- 511/26/14

-12/03/14 24 +/- 5 24 +/- 5 24 +/- 5 26 +/- 512/03/14

-12/10/14 41 +/- 5 32 +/- 5 36 +/- 5 31 +/- 512/10/14

-12/17/14 19 +/- 4 21 +/- 4 23 +/-4 24 +/- 512/17/14

-12/24/14 22 +/- 5 24 +/- 5 24 +/- 5 20 +/- 512/24/14

-12/31/14 19 +/- 4 15 +/-4 20 +/- 4 19 +/- 4MEAN 18 +/- 12 17 +/- 11 18 +/- 11 19 +/- 13C-11IPage 73 of 140 Table C-VI.2MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS IN AIRPARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMAGROUP I -ON-SITE LOCATIONS GROUP II -INTERMEDIATE DISTANCE LOCATIONS GROUP III -CONTROL LOCATIONS COLLECTION PERIOD01/01/14

-01/29/1401/29/14

-02/26/1402/26/14

-04/02/1404/02/14

-04/30/1404/30/14

-06/04/1406/04/14

-07/02/1407/02/14

-07/30/1407/30/14

-09/03/1409/03/14

-10/01/1410/01/14

-10/29/1410/29/14

-12/03/1412/03/14

-12/31/1401/01/14

-12/31/14MIN MAX MEAN+/-2SD12 25 20 +/- 816 33 23 +/- 911 33 19 +/- 117 19 13 +/- 77 21 15 +/-79 21 14+/- 610 28 17 1114 31 22+/- 89 25 17+/- 911 22 15+/- 612 64 21 +/-1915 39 24 +/-147 64 18 13COLLECTION PERIOD01/01/1401/29/1402/26/1404/02/1404/30/1406/04/1407/02/1407/30/1409/03/1410/01/1410/29/1412/03/1401/29/1402/26/1404/02/1404/30/1406/04/1407/02/1407/30/1409/03/1410/01/1410/29/1412/03/1412/31/14MIN MAX MEAN+/-2SD12 25 19 +/- 819 31 23 +/- 812 27 18 +/- 107 19 12 +/- 88 21 15 +/- 710 18 13 +/- 511 26 16 +/- 1113 28 20 +/- 911 28 17 +/- 1011 20 14+/- 613 27 19+/- 815 41 24 +/-167 41 18 +/-11COLLECTION PERIOD01/01/1401/29/1402/26/1404/02/1404/30/1406/04/1407/02/1407/30/1409/03/1410/01/1410/29/1412/03/14-01/29/14-02/26/14-04/02/14-04/30/14-06/04/14-07/02/14-07/30/14-09/03/14-10/01/14-10/29/14-12/03/14-12/31/14MIN MAX MEAN+/-2SD13 24 21 +/- 1119 28 24 +/- 714 31 20 +/- 1310 18 14 +/- 814 18 16 +/- 311 15 14 +/- 411 28 18 +/- 1515 32 23 +/- 178 25 17 +/- 169 17 13 +/- 612 26 20 +/- 1319 31 24 +/- 118 32 19 +/- 13-701/01/14

-12/31/1401/01/14

-12/31/14C)I"o.,D Table C-VI.3CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMASITE COLLECTION PERIODCL-1 01/01/14

-04102104/02/14

-07/02107/02/14

-10/01/10/01/14

-12/311Be-7K-40 Co-60 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-14414'14'14'1443 +/- 2267 +/- 1775 +/- 2537 +/- 21*<32 < 3<29 <2<38 <223 +/- 20 < 2MEAN56 +/- 37 -CL-11 01/01/1404/02/1407/02/1410/01/14MEANCL-15 01/01/1404/02/1407/02/1410/01/14MEANCL-2 01/01/1404/02/1407/02/1410/01/1404/02/1407/02/1410/01/1412/31/1404/02/1407/02/1410/01/1412/31/1404/02/1407/02/1410/01/1412/31/1404/02/1407/02/1410/01/1412/31/1404/02/1407/02/1410/01/1412/31/1453 +/- 1763 +/- 2064 +/- 2448 +/- 1757 +/- 1659 +/- 1985 +/- 1871 +/- 2850 +/- 1666 +/- 3059 +/- 2767 +/- 2870 +/- 2554 +/- 26< 3929< 46< 35< 28< 28< 47< 34* 38< 45< 37< 53<3+/-24 < 2<2<1MEAN63 +/- 14 -<3<2<2<2<3<3<3<4<2<2<3<3<3<4<3<2< 3<3<3<3< 3<4<3<2<2<3<3<2<3<3<4<5<3<2<6<3<3<4<4<3< 6<5<8<5<5<5<6<4<4<4<5<4<5<6<6<8< 3<2<4<3<3<3<5<3<3<4<4<3<3<3<4<6* 17 < 2<17 <2<16 <3<21 <2<20 < 2<24 < 3<27 < 3<9 <1<17 <2<22 <2<24 < 3<16 <2<25 <2<21 <3<19 <3<32 <3<16 <2<20 <3<31 <4<27 <3<2<2<2<2<2<2<2<2<2<2<2<2<2<2< 2<4<2<3<4<2<2<3<3<2< 4< 4<7<5<5<4<7<4<5<4<7<4<5<4<7<8<4<4<8<6<4<4<6<5< 1 I<10<11<10<11<11< 12<7< 11< 12< 11<9<13<11<11< 17<9<11< 14<11CL-3 01/01/1404/02/1407/02/1410/01/14MEAN46 +/- 2170 +/- 2179 +/- 2753 +/- 2362 +/- 30< 2964 +/- 3360 +/- 2575 +/- 2166 +/- 15< 27* 21* 66< 47< 55< 57< 54< 37<5 <3<5 <3<10 <6<7 <4Uh0CL-4 01/01/1404/02/1407/02/1410/01/14MEAN<6<8<6<6<3<4<5<3* 23* 30* 21* 21<2<4<2<210131011THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES Table C-VI.3CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMASITE COLLECTION PERIODBe-7K-40 Co-60 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144CL-6 01/01/1404/02/1407/02/1410/01/14MEANCL-7 01/01/1404/02/1407/02/1410/01/14MEAN-04/02/14-07/02/14-10/01/14-12/31/14-04/02/14-07/02/14-10/01/14-12/31/14-04/02/14-07/02/14-10/01/14-12/31/14-04/02/14-07/02/14-10/01/14-12/31/145192674564 +/- 42 -+/- 19+/- 23+/- 41+/- 2263 +/- 1960 +/- 2063 +/- 24< 4862 +/- 4< 36< 40< 53< 63CL-8 01/01/1404/02/1407/02/1410/01/14MEANCL-94 01/01/1404/02/1407/02/1410/01/14MEAN64936249+/- 21+/- 29+/-17+/- 16< 28< 28< 36< 45< 32< 44< 32< 26< 35< 35< 34< 57<2<3<4<4<2<2<2<3<2<4<2<1<3<2<3<3<3<3<6<5<3<2<4<4<4<3<3<2<3<3<3<3<6<6< 10<8<4<4<6<8<6<6<5<3<4<5<4<6<3<3<8<5<3<3<4<6<3<5<4<3<4<3<5<4< 20< 17< 37< 32< 18< 16* 21< 28< 26< 26< 15< 16< 21< 24< 14< 24<2<3<4<3<3<2<2<4<2<2<2<2<3<3<2<3<2<2<4<4<2<2<2<3<2<3<2<1<2<2<2<2<5<4< 12<8<4<4<6<8<4<6<6<4<5<5<6<5< 13<11< 22< 18< 11*10< 10< 15< 10< 16<8<7< 10<11<9< 1167 +/- 3744696174+/- 22+/- 22+/- 22+/- 1962 +/- 27-I00THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES Table C-VII.1CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMACOLLECTION PERinflGROUP ICL-2 CL-301/01/14

-01/08/14

< 2801/08/14

-01/15/14

< 5601/15/14

-01/22/14

< 6201/22/14

-01/29/14

< 6401/29/14

-02/05/14

< 3402/05/14

-02/12/14

< 6202/12/14

-02/19/14

< 7002/19/14

-02/26/14

< 5502/26/14

-03/05/14

< 5603/05/14

-03/12/14

< 4503/12/14

-03/19/14

< 5903/19/14

-03/26/14

< 6703/26/14

-04/02/14

< 6104/02/14

-04/09/14

< 3904/09/14

-04/16/14

< 6804/16/14

-04/23/14

< 3904/23/14

-04/30/14

< 2804/30/14

-05/07/14

< 3705/07/14

-05/14/14

< 3305/14/14

-05/21/14

< 6505/21/14

-05/28/14

< 4205/28/14

-06/04/14

< 4306/04/14

-06/11/14

< 2806/11/14

-06/18/14

< 4006/18/14

-06/25/14

< 4206/25/14

-07/02/14

< 2907/02/14

-07/09/14

< 6507/09/14

-07/16/14

< 2707/16/14

-07/23/14

< 6907/23/14

-07/30/14

< 4607/30/14

-08/06/14

< 2908/06/14

-08/13/14

< 5608/13/14

-08/20/14

< 2408/20/14

-08/27/14

< 6008/27/14

-09/03/14

< 6209/03/14

-09/10/14

< 4209/10/14

-09/17/14

< 5709/17/14

-09/24/14

< 5209/24/14

-10/01/14

< 4410/01/14

-10/08/14

< 5510/08/14

-10/15/14

< 2310/15/14

-10/22/14

< 3710/22/14

-10/29/14

< 6310/29/14

-11/05/14

< 3811/05/14

-11/12/14

< 5811/12/14

-11/19/14

< 4111/19/14

-11/26/14

< 3111/26/14

-12/03/14

< 5212/03/14

-12/10/14

< 4112/10/14

-12/17/14

< 6112/17/14

-12/24/14

< 3412/24/14

-12/31/14

< 46* 28* 57*<64* 61* 34* 50* 23* 56* 44< 44* 58*<64* 62* 38* 68* 38* 28* 38* 33* 64< 44< 44* 27< 40* 44* 29* 65* 27* 69* 47* 29* 57*<24* 61* 63< 43* 56* 52* 44* 54* 61* 36* 25* 38* 61* 41* 30 (1)* 51* 41* 62< 34* 43CL-4 CL-6 CL-15< 27 < 28 < 14< 56 < 55 < 68< 61 < 63 < 60< 63 < 63 < 64*<33 < 34 < 33< 49 < 50 < 64< 60 < 59 < 53< 55 < 56 < 57< 17 < 44 < 41< 45 < 45 < 61< 57 < 22 < 60< 66 < 68 < 59< 60 < 60 < 47< 38 < 39 < 44< 70 < 67 < 49< 39 < 39 < 38< 29 < 30 < 29< 36 < 37 < 53< 32 < 32 < 12*<65 < 65 < 67< 42 < 42 < 39< 43 < 43 < 44< 27 < 28 < 26*<33 < 34 < 47*<15 < 41 < 42< 29 < 30 < 30< 64 < 25 < 64< 27 < 15 < 27< 69 < 69 < 60< 46 < 46 < 44< 29 < 11 < 46< 56 < 22 < 45< 24 < 12 < 19*<59 < 59 < 68< 61 < 33 < 17< 41 < 16 < 45< 56 < 57 < 56< 49 < 52 < 57< 43 < 44 < 34< 52 < 55 < 58< 58 < 60 < 49< 37 < 35 < 52< 64 < 65 < 52< 36 < 16 < 44< 21 < 56 < 68< 41 < 41 < 30< 30 < 31 < 30*<51 < 52 < 50< 41 < 16 < 40< 61 < 60 < 69< 34 < 34 < 18< 45 < 19 < 52ICL-94* 26* 66* 32* 66* 33* 66* 52* 55* 41* 59* 58* 59< 48< 42< 48* 38* 28* 50* 29* 65* 37* 45* 26< 47< 41* 30* 26< 11* 60* 42< 47* 19* 18* 69< 46< 44* 23* 54< 40* 60* 50* 53* 49< 45< 67* 30* 30* 50< 40< 66* 18* 50MEAN----(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-15c-I 5Page 77 of 140 Table C-VII.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF E-3 PCI/CU METER +/-2 SIGMACOLLECTION GROUP 11 GROUP IIIPERIOD CL-i CL-7 CL-8 CL-li101/01/14

-01/08/14

< 11 < 26 < 26 < 2701/08/14

-01/15/14

< 33 < 34 < 65 < 6401/15/14

-01/22/14

< 26 < 60 < 61 < 5801/22/14

-01/29/14

< 25 < 35 < 65 < 6401/29/14

-02/05/14

< 13 < 18 < 32 < 3302/05/14

-02/12/14

< 19 < 27 < 64 < 6402/12/14

-02/19/14

< 60 < 28 < 51 < 5402/19/14

-02/26/14

< 22 < 23 < 55 < 5702/26/14

-03/05/14

< 44 < 17 < 40 < 4603/05/14

-03/12/14

< 27 < 31 < 61 < 5903/12/14

-03/19/14

< 58 < 31 < 58 < 5703/19/14

-03/26/14

< 25 < 24 < 57 < 5703/26/14

-04/02/14

< 33 < 20 < 49 < 4804/02/14

-04/09/14

< 15 < 18 < 42 < 4204/09/14

-04/16/14

< 27 < 48 < 20 < 4704/16/14

-04/23/14

< 16 < 20 < 38 < 3704/23/14

-04/30/14

< 11 < 28 < 30 < 1204/30/14

-05/07/14

< 14 < 22 < 51 < 5105/07/14

-05/14/14

< 13 < 29 < 29 < 2905/14/14

-05/21/14

< 24 < 27 < 66 < 6305/21/14

-05/28/14

< 25 < 22 < 37 < 3705/28/14

-06/04/14

< 18 < 18 < 45 < 4206/04/14

-06/11/14

< 12 < 9 < 26 < 2606/11/14

-06/18/14

< 13 < 19 < 48 < 4706/18/14

-06/25/14

< 40 < 17 < 42 < 4206/25/14

-07/02/14

< 12 < 11 < 30 < 3007/02/14

-07/09/14

< 65 < 62 < 63 < 6207/09/14

-07/16/14

< 27 < 27 < 27 < 2707/16/14

-07/23/14

< 29 < 22 < 60 < 6007/23/14

-07/30/14

< 25 < 16 < 43 < 4207/30/14

-08/06/14

< 29 < 47 < 25 < 4608/06/14

-08/13/14

< 56 < 44 < 44 < 4408/13/14

-08/20/14

< 25 < 18 < 18 < 1008/20/14

-08/27/14

< 23 < 29 < 69 < 6808/27/14

-09/03/14

< 62 < 45 < 45 < 4509/03/14

-09/10/14

< 43 < 24 < 44 < 4409/10/14

-09/17/14

< 31 < 57 < 58 < 5709/17/14

-09/24/14

< 20 < 23 < 54 < 5509/24/14

-10/01/14

< 18 < 12 < 41 < 3510/01/14

-10/08/14

< 29 < 23 < 59 < 5810/08/14

-10/15/14

< 58 < 21 < 50 < 5010/15/14

-10/22/14

< 14 < 22 < 54 < 5210/22/14

-10/29/14

< 64 < 21 < 49 < 5010/29/14

-11/05/14

< 36 < 25 < 45 < 4511/05/14

-11/12/14

< 56 < 29 < 67 < 6811/12/14

-11/19/14

< 17 < 17 < 31 < 3111/19/14

-11/26/14

< 31 < 13 < 30 < 3011/26/14

-12/03/14

< 20 < 21 < 50 < 5i12/03/14

-12/10/14

< 17 < 41 < 40 < 4112/10/14

-12/17/14

< 27 < 34 < 67 < 6912/17/14

-12/24/14

< 13 < 7 < 18 < 1812/24/14

-12/31/14

< 44 < 51 < 22 < 49MEAN ----C-16C-! 6Page 78 of 140 Table C-VIII.1CONCENTRATIONS OF 1-131 IN MILK SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACONTROL FARMCOLLECTION CL-116PERIOD01/19/14

< 0.602/26/14

< 0.603/26/14

< 0.604/30/14

< 0.805/14/14

< 0.805/28/14

< 0.706/11/14

< 0.806/25/14

< 0.607/09/14

< 0.607/23/14

< 0.708/06/14

< 0.608/20/14

< 0.709/03/14

< 0.809/17/14

< 0.510/01/14

< 0.610/15/14

< 0.610/29/14

< 0.511/26/14

< 0.412/31/14

< 0.5MEANC-17Page 79 of 140 Table C-VIII.2CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMASITE COLLECTION Be-7K-40 Mn-54Co-58 Fe-59Co-60 Zn-65 Nb-95 Zr-95Cs-134 Cs-137 Ba-140La-140 Ce-144PERIODCL-1 16 01/19/1402/26/1403/26/1404/30/1405/14/1405/28/1406/11/1406/25/1407/09/1407/23/1408/06/1408/20/1409/03/1409/17/1410/01/1410/15/1410/29/1411/26/1412/31/14MEAN< 49 1177 +/- 121 < 4< 62 1224 +/- 165 < 6<44 1226 +/- 104 <4< 65 1122 +/- 168 < 8< 51 1034 +/- 136 < 6< 56 1287 +/- 159 < 6< 65 1184 +/- 171 < 8< 39 1227 +/- 121 < 5< 48 1177 +/- 118 < 5< 57 1240 +/- 144 < 7< 45 1244 +/- 155 < 5< 55 1099 +/- 142 < 6< 42 1208 +/- 98 < 5< 69 1266 +/- 179 < 7< 56 1127 +/- 140 < 6< 43 1242 +/- 107 < 4< 60 1273 +/- 192 < 7< 55 1294 +/- 128 < 6< 45 1148 +/- 123 < 7<5 <14<6 <14<5 <11<7 <20<7 <15<6 <12<8 <17<4 <10<5 <13<7 <15<5 <14<7 <14<5 <11<9 <15<7 <18<5 <11<7 <20<6 <19<6 <14<6<9<4<9<6<7<9<5<5<7<7<7<5<8<7<5< 10<7<7<9< 13< 12< 19< 15< 15< 20< 12< 13< 16< 14< 13< 10< 18< 14< 10< 20< 16< 15<6 <9<7 <10<5 <8<8 <18<7 <11<7 <12<8 <14<5 <8<5 <8<7 <12<6 <9<7 <11<5 <9<8 <13<7 <11<5 <8<8 <14<7 <12<6 <12<4 <5<6 <7<5 <5<6 <7<6 <7<6 <8<7 <8<4 <5<5 <6<6 <7<6 <7<6 <7<4 <5<6 <9<5 <6<4 <4<7 <7<6 <6<6 <6< 57< 29< 31< 40< 27< 30< 41< 22< 28< 28< 32< 35< 33< 38< 42< 39< 38< 39< 28< 15 < 36< 10 < 49<9 <38< 12 <48<8 <36< 10 <47< 10 < 57<7 <36<7 <45< 11 < 37< 8 <46<9 <35< 10 < 39<10 <44< 11 <31< 12 < 31< 14 < 53< 12 < 31<9 <32001200 +/- 139eIq00.0-CD Table C-IX.1CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMASITE COLLECTION Be-7K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Ce-144PERIODCL-114 06/25/14 Cabbage 344 +/- 134 4166 +/- 514 < 17 < 19 < 37 < 19 < 4206/25/14 Lettuce 498 +/- 157 5928 +/- 540 < 20 < 20 < 40 < 21 < 4906/25/14 Swiss Chard 253 +/- 126 5181 +/- 537 < 20 < 16 < 49 < 22 < 6007/30/14 Cabbage < 152 3581 +/- 393 < 18 < 18 < 42 < 18 < 4107/30/14 Kale < 148 3716 +/- 389 < 14 < 12 < 35 < 15 < 3107/30/14 Swiss Chard 467 +/- 171 6411 +/- 473 < 16 < 18 < 48 < 16 < 4008/27/14 Cabbage 322 +/- 126 4782 +/- 367 < 16 < 17 < 43 < 14 < 3708/27/14 Substituted velvet leaf (1) 751 +/- 187 8465 +/- 395 < 17 < 17 < 38 < 18 < 3708/27/14 Swiss Chard 433 +/- 131 4585 +/- 390 < 14 < 18 < 36 < 14 < 2909/24/14 Kale 205 +/- 131 5373 +/- 330 < 11 < 13 < 32 < 10 < 2909/24/14 Substituted Bean Greens (1) 922 +/- 76 7159 +/- 171 < 6 < 6 < 15 < 5 < 1309/24/14 Swisschard 444 +/- 115 5627 +/- 331 < 10 < 11 < 31 < 9 < 29MEAN464 +/- 443 5415 +/- 2867< 19 < 29 < 28 < 15< 24 < 33 < 38 < 22< 21 < 41 < 33 < 19< 19 < 28 < 50 < 14< 15 < 29 < 42 < 13< 20 < 31 < 47 < 14< 16 < 31 < 48 < 14< 19 < 33 < 59 < 17< 16 < 28 < 42 < 11< 13 < 24 < 48 < 11< 7 < 10 < 31 < 5< 11 < 22 < 57 < 10< 19 < 34 < 43 < 21< 22 < 40 < 49 < 22< 23 < 43 < 42 < 24< 21 < 34 < 58 < 16< 15 < 27 < 55 < 14< 21 < 37 < 54 < 15<8 <15 <28 <7< 18 < 23 < 54 < 13< 11 < 20 < 42 < 11< 12 < 21 < 37 < 10<8 <15 <43 <7<7 < 12 <30 <5< 16 < 91 < 29 < 110< 24 < 104 < 27 < 163< 24 < 98 < 32 < 105< 16 < 112 < 38 < 108< 14 < 110 < 27 < 89< 15 < 115 < 29 < 107< 17 < 100 < 33 < 75< 17 < 125 < 31 < 126< 15 < 116 < 20 < 94< 12 < 115 < 30 < 79< 5 < 54 < 12 < 46< 11 < 93 < 26 < 83< 23 < 113 < 32 < 165< 22 < 96 < 38 < 198< 26 < 118 < 23 < 164< 21 < 125 < 39 < 130< 17 < 106 < 36 < 102< 22 < 133 < 37 < 102< 8 < 58 < 15 < 46< 15 < 110 < 27 < 107< 10 < 81 < 19 < 72< 11 < 79 < 21 < 54< 7 < 73 < 16 < 57< 6 < 54 < 13 < 40'.0CL-115 06/25/14 Cabbage < 284 3307 +/- 466 < 21 < 20 < 42 < 23 < 4406/25/14 Kale < 252 4715 +/- 541 < 27 < 23 < 52 < 22 < 4906/25/14 Lettuce 412 +/- 209 4538 +/- 538 < 19 < 20 < 45 < 26 < 5007/30/14 Cabbage < 183 6378 +/- 512 < 20 < 18 < 47 < 17 < 3907/30/14 Kale 318 +/- 199 5562 +/- 521 < 19 < 16 < 36 < 19 < 3807/30/14 Lettuce 391 +/- 173 4492 +/- 523 < 15 < 20 < 42 < 16 < 4908/27/14 Kale 462 +/- 85 5710 +/- 203 < 7 < 8 < 19 < 8 < 1808/27/14 Swiss Chard 413 +/- 118 5420 +/- 413 < 13 < 17 < 43 < 13 < 3208/27/14 Lettuce 732 +/- 167 6417 +/- 369 < 10 < 11 < 22 < 9 < 2209/24/14 Kale/Nightshade (comp) (1) 1307 +/- 128 5896 +/- 270 < 11 < 12 < 28 < 12 < 2709/24/14 Substituted Bean Greens (1) 1656 +/- 92 4572 +/- 170 < 7 < 9 < 20 < 7 < 1809/24/14 Swiss Chard 572 +/- 71 6332 +/- 181 < 6 < 7 < 17 < 6 < 15MEAN696 +/- 939 5278 +/- 1921 -G0(b00THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION Table C-IX.1CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMASITE COLLECTION PERIODCL-1 17 06125/14 Cab06/25/14 Lett06/25/14 Swis07/30/14 Cab07/30/14 Letti07/30/14 Swis08/27/14 Cab08/27/14 Swis08/27/14 Kale09/24/14 Kale09/24/14 Sub!09/24/14 SwisBe-7K-40 Mn-54Co-58 Fe-59 Co-60Zn-65 Nb-95Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Ce-144bageucess Chardbageucess Chardbagess Chardstituted Marigolds ss Chard< 288274 +/- 178402 +/- 202402 +/- 160542 +/- 229360 +/- 127341 +/- 157364 +/- 124659 +/- 93551 +/- 80(1) 1512 +/- 99369 +/- 1123120 +/- 5503535 +/- 4837511 +/- 7353464 +/- 3984054 +/- 4295544 +/- 4244584 +/- 2955313 +/- 4055554 +/- 2354001 +/- 1526787 +/- 2186185 +/- 285< 22< 20* 30< 16<11<13< 12< 14< 11<6<8< 10MEAN525 +/- 692 4971 +/- 2809 -< 20< 23< 25< 18< 10< 15< 15< 14< 11<7<9< 10< 16< 16< 25< 17< 18* 17< 17< 14< 16<6<6< 12< 57< 48< 74< 39* 22< 38< 32< 38< 29< 17< 21< 28* 31< 41< 69< 45< 45< 48< 36< 39< 41< 14< 15< 32< 33< 21* 31< 21< 10< 12< 12< 15*12<6<8< 10< 15< 18< 25< 11< 15< 14*17< 13< 17<5<6< 11< 66< 56* 71< 37< 26< 36* 28< 38* 25< 14< 19< 24* 32< 45* 70< 40< 35< 37< 35< 33< 38< 12< 14< 25< 24< 20< 27< 18< 13< 14*15< 16<12<7<10< 12< 16< 19< 26< 19< 18< 19*17< 15< 20<6<6< 12< 39< 34< 51< 27< 23< 24* 25< 27* 21< 12< 16< 19< 27< 33< 48< 35* 32< 28< 32< 23< 29< 10< 11< 21* 46< 37< 43< 57< 50< 50* 58< 54* 38< 36* 28< 51< 29* 36< 42< 54< 60< 55< 59< 45< 56< 25< 31< 58< 22< 19< 26< 15< 12< 13< 12< 12< 10<6<8<8< 15* 17< 20* 16< 16< 13< 13<12< 15<5<5<8< 27< 22< 25< 17< 11< 15< 14< 14< 11<6<8<9< 16* 21< 26<19<17< 14*14< 13< 17<5<6< 12< 116< 94< 130< 122< 80< 93< 113< 119* 83< 60* 61< 93< 72< 97< 115* 117* 124< 115* 120< 101< 135< 47< 54< 90* 25< 31< 40< 31< 30< 23< 24< 36< 24< 16< 15< 21< 22< 21< 32< 36< 26< 17< 39< 23* 32< 14< 16< 22* 180< 135< 124< 118< 100< 98< 185< 93< 48< 46< 56< 73< 122< 140< 114< 107< 110< 107< 96< 61* 122< 32* 38* 83nCL-118 06/25/1406/25/1406/25/1407/30/1407/30/1407/30/1408/27/1408/27/1408/27/1409/24/1409/24/1409/24/14CabbageLettuceSwiss ChardCabbageLettuceSwiss ChardCabbageKaleSwiss ChardCabbageKaleSwiss Chard156 +/- 110512 +/- 167435 +/- 169< 173374 +/- 170528 +/- 220< 136324 +/- 124347 +/- 134706 +/- 57569 +/- 82409 +/- 1072879 +/- 3365979 +/- 5068897 +/- 7402725 +/- 3745844 +/- 4278239 +/- 5473296 +/- 3533496 +/- 3285114 +/- 4133953 +/- 1234615 +/- 1537161 +/- 372<16< 19< 20< 17< 16< 15< 17< 16< 16<5<6<9MEAN436 +/- 304 5183 +/- 4165 --ohiq000THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION Table C-IX.2CONCENTRATIONS OF GAMMA EMITTERS IN GRASS SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMASITE COLLECTION PERIODBe-7K-40Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Ce-144CL-01 05/14/1405/28/1406/11/1406/25/1407/09/1407/23/1408/06/1408/20/1409/03/1409/17/1410/01/1410/15/1410/29/14891 +/- 351 5305 +/- 613 < 28< 25 < 57 < 30 < 501903 +/- 2811226 +/- 226841 +/- 228756 +/- 2652728 +/- 352734 +/- 175693 +/- 711559 +/- 1803124 +/- 268914 +/- 2383330 +/- 2313177 +/- 2054921 +/- 546 < 253934 +/- 542 < 255120 +/- 554 < 236482 +/- 599 < 125885 +/- 658 < 284972 +/- 507 < 184901 +/- 157 < 54255 +/- 317 < 154548 +/- 428 < 146400 +/- 518 < 163332 +/- 317 < 136086 +/- 364 < 14* 24* 22* 25* 16* 31* 22<7* 16* 14* 13<13* 16< 56 < 24 < 62< 55 < 25 < 62< 53 < 27 < 58< 52 < 14 < 38< 55 < 24 < 56< 48 < 17 < 39< 17 < 6 < 13< 39 < 15 < 38< 42 < 15 < 38< 37 < 12 < 26< 34 < 12 < 29< 37 < 14 < 36< 28 < 51 < 45 < 27< 27 < 42 < 39 < 20< 25 < 45 < 50 < 24< 26 < 48 < 39 < 25< 12 < 24 < 46 < 13< 28 < 45 < 51 < 27< 22 < 33 < 42 < 17<7 <11 <41 <5< 19 < 29 < 49 < 14< 18 < 31 < 55 < 13< 13 < 25 < 59 < 13< 17 < 23 < 56 < 13< 17 < 27 < 54 < 13< 29 < 123 < 32< 24 < 114 < 38< 31 < 152 < 33< 26 < 124 < 37< 15 < 118 < 17< 29 < 138 < 38< 18 < 122 < 35< 6 < 66 < 17< 15 < 118 < 34< 14 < 107 < 34< 13 < 108 < 19< 13 < 111 < 34< 15 < 112 < 27* 230* 164* 183* 173<64* 189* 90<34< 97* 125* 114< 94* 87MEAN1683 +/- 2086 5088 +/- 1899CL-02 05/14/1405/28/1406/11/1406/25/1407/09/1407/23/1408/06/1408/20/1409/03/1409/17/1410/01/1410/15/1410/29/142427 +/- 2961265 +/- 386903 +/- 355518 +/- 1932108 +/- 2232652 +/- 3622374 +/- 2611905 +/- 1113980 +/- 2933211 +/- 2242712 +/- 2983834 +/- 2865198 +/- 2366051 +/- 549 < 194519 +/- 741 < 303900 +/- 609 < 346311 +/- 526 < 224174 +/- 327 < 176584 +/- 740 < 314971 +/-443 < 184959 +/- 193 < 76212 +/- 413 < 145155 +/- 318 < 116034 +/-449 < 132380 +/- 295 < 156385 +/- 350 < 13* 20< 37* 38* 20* 17* 26*19<8*15* 14<16*15<15< 48 < 20 < 44< 82 < 36 < 72< 75 < 39 < 72< 49 < 21 < 48<39 < 17 <34< 70 < 28 < 82< 39 < 16 < 40<22 <7 <17< 37 < 15 < 34< 34 < 12 < 30< 34 < 18 < 30< 36 < 14 < 29< 31 < 13 < 31< 20 < 38 < 31 < 19< 30 < 51 < 47 < 29< 34 < 58 < 58 < 30< 21 < 38 < 35 < 21< 18 < 33 < 58 < 16< 29 < 56 < 48 < 28< 21 < 30 < 47 < 17<8 <15 <50 <6< 16 < 30 < 49 < 14< 16 < 24 < 52 < 13< 17 < 30 < 51 < 14< 18 < 29 < 57 < 13< 15 < 27 < 54 < 13< 21 < 97 < 26< 28 < 151 < 37< 35 < 160 < 42< 23 < 88 < 20< 17 < 117 < 35< 34 < 146 < 37< 18 < 113 < 36< 7 < 83 < 25< 16 < 104 < 25< 14 < 95 < 22< 13 < 115 < 26< 14 < 120 < 34< 14 < 103 < 26* 149* 161* 141* 157* 103* 170* 141< 33* 89* 115* 102< 97* 106UQ00MEAN2545 +/- 2603 5203 +/- 2468 Table C-IX.2CONCENTRATIONS OF GAMMA EMITTERS IN GRASS SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMASITE COLLECTION PERIODBe-7K-40Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Ce-144l.,JCL-08 05/14/1405/28/1406/11/1406/25/1407/09/1407/23/1408/06/1408/20/1409/03/1409/17/1410/01/1410/15/1410/29/14MEANCL-116 05/14/1405/28/1406/11/1406/25/1407/09/1407/23/1408/06/1408/20/1409/03/1409/17/1410/01/1410/15/1410/29/14406 +/- 241493 +/- 3161148 +/- 3181568 +/- 3052207 +/- 2262378 +/- 3271933 +/- 252371 +/- 701711 +/- 2052929 +/- 2602593 +/- 2941878 +/- 2291693 +/- 2296892600555976423604475795612619070455926619252128596+/- 620+/- 886+/- 623+/- 499+/- 419+/- 701+/- 478+/- 177+/- 405+/- 454+/- 493+/- 389+/- 470< 25< 34< 27<9< 16< 32< 18<7< 16< 17< 14< 17< 16< 28< 34< 28<8< 14* 28< 21<8< 18< 20< 14< 20< 17< 55< 73* 56< 19< 39< 62< 532039<44< 3347< 51< 24< 27< 31< 23* 16< 35< 18<7< 18< 20< 16< 19< 18< 60< 73< 62< 29< 32< 58< 45< 17< 40< 45< 34< 45< 43< 24* 36< 33< 10< 19< 32< 23<8< 19< 20< 17< 21< 17< 47< 55< 44< 18< 33< 54< 38< 14< 30< 36< 25< 31< 31< 36< 57< 55< 24< 59* 52< 51< 51< 59< 60< 60< 58< 57< 25< 30< 26<11*17< 31< 20<7< 15< 15< 12< 15< 15< 26< 38< 27< 13< 15< 31< 18<7< 17* 21< 16< 16< 17* 133* 158< 117< 64< 125< 140< 102< 81< 107< 128< 111< 125< 126< 29< 51< 35<11< 23< 42< 37< 22< 24< 31< 29< 36< 34* 182* 201< 197< 108< 125< 206< 124< 43< 124< 126< 98< 79< 1021639 +/- 1662 6409 +/- 1839 -699 +/- 3631144 +/- 241500 +/- 2211134 +/- 3321938 +/- 2001483 +/- 2931067 +/- 2001307 +/- 811222 +/- 1573059 +/- 2821398 +/- 2762597 +/- 2224173 +/- 2095693412947135343594864055173602044004754642543825901+/- 848+/- 524+/- 675+/- 546+/- 374+/- 778+/- 499+/- 171+/- 339+/- 461+/- 587+/- 419+/- 302* 36* 18< 28< 28* 16< 28* 20<7< 14< 18< 16< 15< 12< 38*18< 27< 31< 17< 29< 22<9* 14* 19< 21< 15< 13< 83< 51< 62< 65< 37< 69< 47< 21< 38< 46< 46< 42< 30< 40< 19< 33< 30< 16< 27< 21<7< 13< 18< 16< 16< 14< 98* 29* 70< 69* 36* 65< 53< 17* 36< 37< 31< 33< 27< 37< 25* 26< 30< 18* 24< 24<8* 16< 21< 16< 17< 14< 72k 33< 49< 56* 32< 50< 35< 15< 28< 31< 26< 33< 24< 58< 39< 40< 55< 59< 46< 56< 55< 45< 59<54< 60< 48< 38< 22< 27< 33< 15* 26< 18<7<13< 17< 14< 14* 12<41< 21< 31< 31< 15* 28< 22<7< 14< 16< 16< 16*13< 170< 93* 121< 144< 124< 125< 121< 88< 103< 100< 104< 123< 95< 16< 24< 27< 36< 36< 57< 26< 20< 29< 38< 28< 36* 26< 177< 135< 163< 250< 120< 163< 125< 56< 72< 118< 93< 106< 88~0CD0000MEAN1671 +/- 2066 5330 +/- 1593 Table C-X.1QUARTERLY DLR RESULTS FOR CLINTON POWER STATION, 2014RESULTS IN UNITS OF MILLIREM/QUARTER

+/- 2 STANDARD DEVIATIONS STATIONCODECL-01CL-02CL-03CL-04CL-05CL-06CL-07CL-08CL-11CL-15CL-22CL-23CL-24CL-33CL-34CL-35CL-36CL-37CL-41CL-42CL-43CL-44CL-45CL-46CL-47CL-48CL-49CL-51CL-52CL-53CL-54CL-55CL-56CL-57CL-58CL-60CL-61CL-63CL-64CL-65CL-74CL-75CL-76CL-77CL-78CL-79CL-80CL-81CL-84CL-90CL-91CL-97CL-99CL-114MEAN+/-23D-22.0 + 1.72237 + 1.521.8 + 2.721t8 + 1.923.0 + 3.519.7 +/- 2.021.0 +/- 2.421.9 + 2.921.0 + 0.820.0 + 2.123.1 +/- 3.024.4 +/- 3.323.8 +/- 2.022.7 + 2.423.0 +/- 2.621.4 +/- 2.921.9 +/- 3.221.1 + 4.123.6 +/- 3.722.1 +/- 3.923.7 +/- 2.122.4 +/- 4.422.8 +/- 5.623.1 +/- 3.623.2 +/- 4.321.5 +/- 5.823.1 +/- 3.724.1 +/- 3.024.0 +/- 5.020.8 +/- 1.822.9 +/- 5.023.1 +/- 3.723.6 +/- 3.423.6 +/- 2.122.9 +/- 4.522.7 +/- 2.423.2 +/- 2.920.2 +/- 3.622.8 +/- 1.623.9 +/- 3.920.7 +/- 1.822.5 +/- 4.322.8 +/- 4.921.1 +/- 2.721.5 +/- 3.022.5 +/- 4.222.5 +/- 4.023.0 +/- 2.422.5 +/- 4.919.2 +/- 2.621.3 +/- 1.623.1 +/- 2.818.2 +/- 2.221.5 +/- 3.1JAN-MAR APR-JUN JUL-SEP OCT-DEC21.222.120.920.821.318.320.020.120.619.021.822.722.421.521.319.920.118.421.419.622.819.919.420.520.417.320.622.822.020.019.920.621.122.421.222.321.718.123.321.920.020.119.919.320.220.219.821.619.718.520.622.017.620.521.522.320.922.023.219.920.721.820.719.423.123.223.822.723.221.121.821.723.322.823.322.222.623.523.422.124.124.023.321.323.025.024.124.023.123.023.820.321.923.120.622.024.222.121.222.023.622.922.618.620.723.117.721.122.222.521.721.422.019.920.522.021.020.222.425.724.122.223.021.021.621.023.721.823.522.023.023.923.222.422.723.3(1)20.022.823.024.323.021.321.422.419.822.324.220.222.421.720.720.922.422.422.822.018.621.922.117.520.723.123.823.823.025.320.722.723.621.521.425.225.924.824.324.523.424.023.325.924.225.225.326.224.525.724.124.826.226.821.826.023.724.824.826.024.224.922.523.626.522.025.325.422.123.625.324.324.525.621.222.125.019.823.8(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-23Page 85 of 140 TABLE C-X.2MEAN QUARTLY DLR RESULTS FOR THE INNER RING, OUTER RING,SPECIAL INTEREST, SUPPLEMENTAL AND CONTROL LOCATIONS FOR CLINTONPOWER STATION, 2014RESULTS IN UNITS OF MILLIREM/QUARTER

+/- 2 STANDARD DEVIATIONS OF THESTATION DATACOLLECTION PERIODJAN-MARAPR-JUNJUL-SEPOCT-DECINNER RING+ 2 S.D.20.5 +/- 3.122.6 +/- 2.022.6 +/- 2.724.6 +/- 2.1OUTER RING SPECIAL INTEREST SUPPLEMENTAL CONTROL20.9 +/- 2.223.2 +/- 2.122.2 +/- 2.324.7 +/- 2.820.8 +/- 3.122.4 +/- 2.422.4 +/- 2.824.5 +/- 3.220.1 +/- 2.721.0 +/- 3.220.9 +/- 3.022.9 +/- 3.420.6 +/- 0.020.7 +/- 0.021.0 +/- 0.021.5 +/- 0.0TABLE C-X.3SUMMARY OF THE AMBIENT DOSIMETRY PROGRAM FOR CLINTONPOWER STATION, 2014RESULTS IN UNITS OF MILLIREM/QUARTER

+/- 2 STANDARD DEVIATION LOCATIONINNER RINGOUTER RINGSPECIAL INTERESTSUPPLEMENTAL CONTROLSAMPLES PERIODANALYZED MINIMUM64 17.363 19.328 18.456 17.54 20.6PERIODMAXIMUM26.226.826.525.621.5PERIOD MEAN+/- 2 S.D.22.6 +/- 3.822.7 +/- 3.622.5 +/- 3.821.2 +/- 3.621.0 +/- 0.8PRE-OP MEAN+ 2 S.D., ALL LOCATIONS 18.0 +/- 2.4INNER RING STATIONS

-CL-01, CL-05, CL-22, CL-23, CL-24, CL-34, CL-35, CL-36,CL-42, CL-43, CL-44, CL-45, CL-46, CL-47, CL-48, CL-63OUTER RING STATIONS

-CL-51, CL-52, CL-53, CL-54, CL-55, CL-56, CL-57, CL-58,CL-60, CL-61, CL-76, CL-77, CL-78, CL-79, CL-80, CL-81SPECIAL INTEREST STATIONS

-CL-37, CL-41, CL-49, CL-64, CL-65, CL-74, CL-75SUPPLEMENTAL STATIONS

-CL-02, CL-03, CL-04, CL-06, CL-07, CL-08, CL-1 14, CL-1 5,CL-33, CL-84, CL-90, CL-91, CL-97, CL-99CONTROl STATION -CL-11C-24Page 86 of 140 FIGURE C-1MEAN MONTHLY GROSS BETA CONCENTRATION IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CPS, 20140.0520.0470.0420.0370 0.032C.,0.027S 0.022I-< 0.0170.0120.0070.002MONTHPRE-OP (ALL SITES)---2014 INDICATOR

---2014 CONTROLC-25Page 87 of 140 FIGURE C-2MEAN QUARTERLY AMBIENT GAMMA RADIATION LEVELS (DLR) INTHE VICINITY OF CPS, 201450454035E1 30E25201510QUARTERmEPRE-OPD32014 Indicator U 2014 controlC-26Page 88 of 140 APPENDIX DINTER-LABORATORY COMPARISON PROGRAMPage 89 of 140 Intentionally left blankPage 90 of 140 TABLE D-1ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAMTELEDYNE BROWN ENGINEERING, 2014(PAGE 1 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)March 2014 E10854E10855E10857E10856MilkMilkSr-89Sr-901-131Ce-141Cr-51Cs-134Cs-1 37Co-58Mn-54Fe-59Zn-65Co-60pCi/L 95.1 91.7pCi/L 10.9 15.1pCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCipCipCipCipCipCipCipCipCi96.611244918625024829223031232153.023210012212213511114018798.511949121025326829721932333753.922395.311512113599.3147153AP Ce-141Cr-51Cs-1 34Cs-1 37Co-58Mn-54Fe-59Zn-65Co-60Charcoal 1-131Water Fe-55June 2014E10858E10913E10914E10916E10915E10917pCi 74.1 76.4pCi/L 2090 1760pCi/L 85.9 91.3pCi/L 13.8 14.51.040.720.980.940.910.890.990.930.981.050.970.950.981.041.051.061.011.001.120.951.220.971.190.940.950.950.901.010.911.030.940.991.041.000.971.031.131.001.061.050.990.951.021.071.00AWAAAAAAAAAAAAAAAAAAWAAAAAAAAAAAAAAAAAAAAAAAMilkMilkSr-89Sr-901-131Ce-141Cr-51Cs-1 34Cs-1 37Co-58Mn-54Fe-59Zn-65Co-60pCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCipCipCipCipCipCipCipCipCi86.511125514712310515510625121895.121512295.188.711572.619317990.912425316212011215610225222492.619012289.884.111676.7189168AP Ce-141Cr-51Cs-134Cs-137Co-58Mn-54Fe-59Zn-65Co-60Charcoal 1-131pCi 85.6 85.2AWater Fe-55 pCi/L 1680 1810D-10.93 APage 91 of 140 TABLE D-1ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAMTELEDYNE BROWN ENGINEERING, 2014(PAGE 2 OF 3)IIdentification Month/Year NumberReported KnownUnits Value (a) Value (b)Matrix NuclideRatio (c)TBE/Analytics Evaluation (d)September2014 E10946E10947E10949E10948MilkMilkSr-89Sr-901-131Ce-141Cr-51Cs-1 34Cs-1 37Co-58Mn-54Fe-59Zn-65Co-60pCi/L 90.7 96.9pCi/L 14.0 16.4pCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCipCipCipCipCipCipCipCipCi92.011728114118613713816275.228697.821210613185.792.811353.220297.612628815819314314215873.029782.118810312693.092.310347.5193AP Ce-141Cr-51Cs-1 34Cs-137Co-58Mn-54Fe-59Zn-65Co-60Charcoal 1-131Water Fe-55Soil Ce-141Cr-51Cs-1 34Cs-1 37Co-58Mn-54Fe-59Zn-65Co-60pCi 83.9 89.8pCi/L 2010 17200.940.850.940.930.980.890.960.960.971.031.030.961.191.131.031.040.921.011.101.121.050.931.171.120.940.931.090.931.161.021.081.020.900.830.900.940.990.950.980.940.981.050.970.95E10950E10951pCi/gpCi/gpCi/gpCi/gpCi/gpCi/gpCi/gpCi/gpCi/g0.2080.3980.2160.3980.1970.2420.2380.1170.4470.1860.4250.2330.3650.2110.2090.2330.1080.438December2014 E11078El1079MilkMilkSr-89Sr-901-131Ce-141Cr-51Cs-134Cs-137Co-58Mn-54Fe-59Zn-65Co-60pCi/L 85.7 95.7pCi/L 12.9 15.6AAAAAAAAAAAAAAAAAAAAAApCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/LpCi/L85.920540215619412222018328722495.1219406164198130225175297235D-2Page 92 of 140 TABLE D-1ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAMTELEDYNE BROWN ENGINEERING, 2014(PAGE 3 OF 3)Identification Reported Known Ratio (c)Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)December2014 E11081AP Ce-141Cr-51Cs-1 34Cs-1 37Co-58Mn-54Fe-59Zn-65Co-60Charcoal 1-131Water Fe-55pCipCipCipCipCipCipCipCipCi96.417173.199.057.510774.214411410219076.992.660.810581.61391100.950.900.951.070.951.020.911.041.040.950.89AAAAAAAAAAAE11080E11082pCi 93.5 98.2pCi/L 1760 1970(a) Teledyne Brown Engineering reported result.(b) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/orvolumetric measurements made during standard preparation.

(c) Ratio of Teledyne Brown Engineering to Analytics results.(d) Analytics evaluation based on TBE internal QC limits: A= Acceptable, reported result falls within ratio limits of 0.80-1.20.

W-Acceptable with warning, reported result falls within 0. 70-0.80 or 1.20-1.30.

N = Not Acceptable, reportedresult falls outside the ratio limits of < 0. 70 and > 1.30.D-3Page 93 of 140 TABLE D-2ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAMTELEDYNE BROWN ENGINEERING, 2014(PAGE 1 OF 1)Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Limits Evaluation (c)May 2014RAD-97MRAD-20Water Sr-89Sr-90Ba-1 33Cs-1 34Cs-137Co-60Zn-65Gr-AGr-B1-131U-NatH-3Filter Gr-AWater Sr-89Sr-90Ba-133Cs-134Cs-137Co-60Zn-65Gr-AGr-B1-131U-NatH-3Filter Gr-ApCi/L 38.25pCi/L 24.65pCi/L 89.1pCi/L 45.55pCi/L 91.15pCi/L 65.10pCi/L 244pCi/L 45.65pCi/L 27.95pCi/L 23.75pCi/L 9.61pCi/L 8435pCi/filter 28.0pCi/L 30.4pCi/L 18.6pCi/L 46.8pCi/L 88.0pCi/L 99.0pCi/L 92.5pCi/L 325pCi/L 29.9pCi/L 27.5pCi/L 15.8pCi/L 5.74pCi/L 6255pCi/filter 27.336.726.587.944.389.164.223561.033.025.710.2877027.5 -43.619.2 -30.974.0- 96.735.5 -48.780.2- 10157.8-73.1 212-27531.9-75.8 21.4 -40.721.3-30.3 7.95- 11.87610-9650 AAAAAAAAAAAAA46.0 15.4-71.4 November 2014 RAD-9931.421.849.189.898.892.131037.627.420.35.80688022.8-38.1 15.6-25.7 40.3 -54.573.7 -98.888.9-11182.9- 104279 -36219.4-48.1 17.3 -35.316.8 -24.44.34 -6.965940 -7570AAAAAAAAAN (1)AAMRAD-2136.9 12.4 -57.3A(1) The Iodine-131 was evaluated as failed with a ratio of 0. 778. No cause could be found for the slighly low activity.

TBE would evaluate this asacceptabIle with warning.

A rerun was not possible due to /-131 decay. All ERA Iodine-131 evaluations since 2004 havebeen acceptable.

NCR 14-08(a) Teledyne Brown Engineering reported result.(b) The ERA known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/orvolumetric measurements made during standard preparation.

(c) ERA evaluation:

A=acceptable.

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

Reported result fallsoutside of the Control Limits. CE=check for Error Reported result falls within the Control Limits and outside of the Warning Limit.D-4Page 94 of 140 TABLE D-3DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP:TELEDYNE BROWN ENGINEERING, 2014(PAGE 1 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide*

Units Value (a) Value (b) Range Evaluation (c)March 2014 14-MaW30 Water Am-241Cs-1 34Cs-137Co-57Co-60H-3**Mn-54Ni-63Pu-238Pu-239/240 K-40Sr-90**U-234/233**

U-238**Zn-6514-MaS3014-RdF30SoilCs-134Cs-137Co-57Co-60Mn-54K-40Sr-90Zn-65Bq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/kgBq/kgBq/kgBq/kgBq/kgBq/kgBq/kgBq/kgBq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 0.76420.728.026.515.6NR13.5NR0.9110.751NRNRNRNR-0.2012.02130010691.3215106694.14763NRNRNRNRNR0.8220NR0.72023.128.927.516.032113.934.00.8280.6768.510.2251.4512389661.2214306226950.504 -0.93616.2-30020.2 -37.619.3 -35.811.2-20.8 225-4179.7- 18.123.8-44.2 0.580 -1.0760.473 -0.879(1)5.96- 11.060.158 -0.2931.02- 1.89(1)(1)867- 1609676- 1256(2)1001 -1859435 -809(1)487 -904AAAAAN (3)AN (3)N (3)N (3)N (3)N (3)AAAAAAAAAN (3)N (3)N (3)N (3)N (3)N (3)N (3)14-GrF3014-RdV30AP Cs-134**Cs-137**Co-57**Co-60*Mn-54**Sr-90Zn-65**AP Gr-AGr-BVegetation Cs-1 34Cs-137Co-57Co-60Mn-54Sr-90Zn-651.91 1.34-2.48 1.76 1.23-2.29 (1)1.39 0.97-1.81 (1)1.18 0.83-1.53 (1)Bq/sample 0.606 1.77 0.53- 3.01Bq/sample 0.7507 0.77 0.39- 1.16Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 5.965.0611.87.348.951.238.916.044.7410.16.938.621.467.864.23 -7.853.32-6.16 7.1 -13.14.85- 9.016.03-11.21 1.02- 1.905.50-10.22 AAAAAAAAAD-5Page 95 of 140 TABLE D-3DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)TELEDYNE BROWN ENGINEERING, 2014(PAGE 2 OF 2)Identification Reported Known Acceptance Month/Year Number Media Nuclide*

Units Value (a) Value (b) Range Evaluation (c)September 2014 14-MaW31Water Am-241Cs-134***

Cs-1 37***Co-57***Co-60***Mn-54***Ni-63Pu-238Pu-239/240 K-40***Zn-65***Bq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/LBq/L0.705NRNRNRNRNR24.070.5910.0153NRNR0.88 0.62- 1.14(1)18.4 12.9-23.9 24.7 17.3 -32.112.4 8.7- 16.114.0 9.8- 18.224.6 17.2 -32.00.618 0.433 -0.8030.0048 (2)161 113-20910.9 7.6- 14.214-MaS3114-RdF 114-GrF31SoilCs- 134***Cs-137***

Co-57***Co-60***Mn-54***K-40***Sr-90-7 , r.***Bq/kgBq/kgBq/kgBq/kgBq/kgBq/kgBq/kgNRNRNRNRNRNR694In1162211167791009824858435-809(1)781-1451545-1013706-1312577-1071601-1115379-7030.492 -0.914AN (4)N (4)N (4)N (4)N (4)AAAN (4)N (4)N (4)N (4)N (4)N (4)N (4)N (4)AN (4)N (4)N (4)ALnI-UJ Oql/I1y ir% Q, IAP Sr-90 Bq/sample 0.310 0.703September 2014 14-RdV31AP Gr-AGr-BVegetation Cs-1 34Cs-137Co-57Co-60Mn-54Sr-90Zn-65tqisample u.153 u.53 u.. 1- u.suBq/sample 0.977 1.06 0.53- 1.59Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample Bq/sample 7.318.9310.86.317.760.7387.167.388.149.26.117.100.856.425.17-9.59 5.70- 10.586.4- 12.04.28 -7.944.97 -9.230.60-1.11 4.49 -8.35AAAAAAAThe MAPEP cross check isotope list has been reduced due to duplication of effort or analysis not being performed for clients.These nuclides are no longer part of the TBE cross check program due to duplication of effort or analysis not being performed for clients.

MAPEP evaluates non-reported analyses as failed if they were reported in the previous series.All future gamma cross check samples for these isotopes will be provided by Analytics.

(1) False positive test.(2) Sensitivity evaluation.

(3) Water, NI-63 overlooked when reporting, but the result of 32.7 +- 1.69 would have passed the acceptance criteria.

NCR 14-04Water, the non-detected K-40 was overlooked when reporting, but would have passed the false positive test. NCR 14-04AP, Sr-90 rerun was within the low range of the acceptqance criteria.

The original and rerun results were statistically the same. Nocause could be identified for the slightly low Sr-90 activity.

NCR 14-04For non reported (NR) analyses, MAPEP evaluates as failed if they were reported in the previous series. NCR 14-04(4) AP, Sr-90 gravimetric yield was very high at 117%. Could indicate larger than normal amounts of calcium in the AP. A second fumingHNO 3 separation would be required to remove the excess calcium.

NCR 14-09AP, Gr-Alpha was counted on the wrong side. When flipped over and recounted the results were acceptable.

NCR 14-09For non reported (NR) analyses, MAPEP evaluates as failed if they were reported in the previous series. NCR 14-09(a) Teledyne Brown Engineering reported result.(b) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/orvolumetric measurements made during standard preparation.

(c) DO_/MAPEP evaluation:

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

D-6Page 96 of 140 TABLE D-4ERA (a) STATISTICAL SUMMARY PROFICIENCY TESTING PROGRAMaENVIRONMENTAL, INC., 2014(Page 1 of 1)Concentration (pCi/L)Lab Code Date Analysis Laboratory ERA ControlResult b Result c Limits Acceptance ERW-1 384ERW-1384ERW-1385ERW-1385ERW-1 385ERW-1 385ERW-1385ERW-1388ERW-1388ERW-1 391ERW-1 394ERW-1 397ERW-5382ERW-5382ERW-5385ERW-5385ERW-5385ERW-5385ERW-5385ERW-5388ERW-5388ERW-5392ERW-5394ERW-539704/07/1404/07/1404/07/1404/07/1404/07/1404/07/1404/07/1404/07/1404/07/1404/07/1404/07/1404/07/1410/06/1410/06/1410/06/1410/06/1410/06/1410/06/1410/06/1410/06/1410/06/1410/06/1410/06/1410/06/14Sr-89Sr-90Ba-133Co-60Cs-134Cs-1 37Zn-65Gr. AlphaGr. Beta1-131UraniumH-3Sr-89Sr-90Ba-1 33Cs-134Cs-137Co-60Zn-65Gr. AlphaG. Beta1-131UraniumH-340.29 +/-24.08 +/-78.23 +/-62.75 +/-44.97 +/-88.54 +/-249.1 +/-56.70 +/-32.10 +/-25.52 +/-10.76 +/-8982 +/-5.762.353.933.533.994.9310.442.471.201.120.7427936.7026.5087.9064.2044.3089.10235.061.0033.0025.7010.20877031.4021.8049.1089.8098.8092.10310.0037.6027.4020.305.80688027.5019.2074.0057.8035.5080.20212.031.9021.4021.307.95761022.8015.6040.3073.7088.9082.90279.019.4017.3016.804.34594043.6030.9096.7073.1048.70101.00275.075.8040.7030.3011.80965038.1025.7054.5098.80111.00104.00362.046.1035.3024.406.967570PassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPass29.40 +/- 5.3219.19 +/- 1.8543.54 +/- 4.5481.95 +/- 7.4995.76 +/- 5.5090.25 +/- 2.77327.4 +/- 23.330.88 +/- 8.0520.47 +/- 4.7519.58 +/- 2.355.51 +/- 0.376876 +/- 383a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

c Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limitsas provided by ERA.D-7Page 97 of 140 TABLE D-5DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)ENVIRONMENTAL, INC., 2014(Page 1 of 2)Concentration aKnown ControlLab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-1140 02101114 Gr. AlphaMAW-1140 02/01/14 Gr. Beta0.77 +/- 0.064.31 +/- 0.080.854.190.26 -1.442.10 -6.29PassPassMAW-1 184MAW-1184MAW-1 184MAW-I 184MAW-1184MAW-1184MAW-1184MAW-i 184MAW-1184MAW-1184MAW-1184MAW-1184MAW-1184MAW-1184MAW-1184MAVE-1 148MAVE-1 148MAVE-1 148MAVE-1 148MAVE-1 148MAVE-1 148MAAP-1 151MAAP-1 151MAAP-1 151MAAP-1 151MAAP-1 151MAAP-1 151MAAP-1 151MAAP-1 154MAAP-1154 MASO-1 146MASO-1 146MASO-1 146MASO-1 146MASO-1 146MASO-1 146MASO-1 146MASO-1 146MASO-1 14602/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/1402/01/14Fe-55H-3Ni-63Pu-238Pu-239/240 Sr-90U-233/234 U-238Co-57Co-60Cs-1 34Cs-137K-40Mn-54Zn-65Co-57Co-60Cs-134Cs-1 37Mn-54Zn-65Co-57Co-60Cs-1 34Cs-1 37Mn-54Zn-65Sr-90Gr. AlphaGr. Beta0.40 +/- 3.20345.10 +/- 10.6032.40 +/- 3.201.28 +/- 0.120.91 +/- 0.107.00 +/- 0.700.20 +/- 0.071.25 +/- 0.1827.86 +/- 0.3815.99 +/- 0.2721.85 +/- 0.5428.74 +/- 0.491.80 +/- 2.0014.06 +/- 0.400.00 +/- 0.1911.63 +/- 0.197.28 +/- 0.186.29 +/- 0.295.18 +/- 0.209.22 +/- 0.268.59 +/- 0.401.60 +/- 0.051.38 +/- 0.081.75 +/- 0.111.81 +/- 0.100.01 +/- 0.03-0.24 +/- 0.091.11 +/- 0.140.00321.0034.000.830.688.510.231.4527.5016.0023.1028.900.0013.900.0010.106.936.044.748.627.860.001.391.911.760.000.001.18-0.01 -2.00225.00 -417.0023.80 -44.200.58 -1.080.47 -0.885.96 -11.060.16 -0.291.02 -1.8919.30 -35.8011.20 -20.8016.20 -30.0020.20 -37.600.00 -10.009.70 -18.10-0.01 -0.007.10 -13.104.85 -9.014.23 -7.853.32 -6.166.03 -11.215.50 -10.22NA0.97 -1.811.34 -2.481.23 -2.29NA-0.50 -1.000.83 -1.53PassPassPassFail (1)Fail (1)PassPassPassPassPassPassPassPassPassPassPassPassPassPassPassPassFail (2)PassPassPassPassPassPassPassPassPassPassPassFail (4)PassPassPassPassPass0.56 +/- 0.060.98 +/- 0.061.770.770.53 -3.010.39 -1.16Ni-63Co-57Co-60Cs-134Cs-1 37K-40Mn-54Zn-65Sr-904.80 +/- 15.301064.50 +/- 3.601.70 +/- 0.506.10 +/- 1.801364.30 +/- 5.30728.90 +/- 15.901588.00 +/- 6.00763.50 +/- 6.801.23 +/- 1.370.00966.001.220.001238.00622.001430.00695.000.00NA676.00 -1256.00(3)NA867.00 -1609.00435.00 -809.001001.00 -1859.00487.00 -904.00NAD-8Page 98 of 140 TABLE D-5DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)ENVIRONMENTAL, INC., 2014(Page 2 of 2)Concentration aKnown ControlLab Code b Date Analysis Laboratory result Activity Limits c Acceptance MASO-4439 08/01/14 Ni-63 771.62 +/- 23.29 980.00 686.00 -1274.00 PassMASO-4439 08/01/14 Sr-90 778.34 +/- 17.82 858.00 601.00 -1115.00 PassMASO-4439 08/01/14 Cs-134 520.60 +/- 7.09 622.00 435.00 -809.00 PassMASO-4439 08/01/14 Co-57 1135.00 +/- 7.40 1116.00 781.00 -1451.00 PassMASO-4439 08/01/14 Co-60 768.20 +/- 7.70 779.00 545.00 -1013.00 PassMASO-4439 08/01/14 Mn-54 1050.70 +/- 12.60 1009.00 706.00 -1312.00 PassMASO-4439 08/01/14 Zn-65 407.89 +/- 15.03 541.00 379.00 -703.00 PassMAW-4431 08/01/14 Am-241 0.79 +/- 0.08 0.88 0.62 -1.14 PassMAW-4431 08/01/14 Cs-137 18.62 +/- 0.54 18.40 12.90 -23.90 PassMAW-4431 08/01/14 Co-57 24.85 +/- 0.42 24.70 17.30 -32.10 PassMAW-4431 08/01/14 Co-60 12.27 +/- 0.38 12.40 8.70 -16.10 PassMAW-4431 08/01/14 H-3 207.20 +/- 10.60 208.00 146.00 -270.00 PassMAW-4431 08/01/14 Fe-55 55.10 +/- 14.80 31.50 22.10 -41.00 Fail (5)MAW-4431 08/01/14 Mn-54 14.36 +/- 0.53 14.00 9.80 -18.20 PassMAW-4431 08/01/14 Zn-65 11.46 +/- 0.78 10.90 7.60 -14.20 PassMAW-4493 08/01/14 Gr. Alpha 0.93 +/- 0.07 1.40 0.42 -2.38 PassMAW-4493 08/01/14 Gr. Beta 6.31 +/- 1.35 6.50 3.25 -9.75 PassMAAP-4433 08/01/14 Sr-90 0.74 +/- 0.10 0.70 0.49 -0.91 PassMAAP-4444 08/01/14 Sr-89 7.82 +/- 0.52 9.40 6.60 -12.20 PassMAAP-4444 08/01/14 Sr-90 0.76 +/- 0.10 0.76 0.53 -0.99 PassMAVE-4436 08/01/14 Cs-1 34 7.49 +/- 0.18 7.38 5.17 -9.59 PassMAVE-4436 08/01/14 Co-57 11.20 +/- 0.19 9.20 6.40 -12.00 PassMAVE-4436 08/01/14 Co-60 6.84 +/- 0.17 6.11 4.28 -7.94 PassMAVE-4436 08/01/14 Mn-54 8.11 +/- 0.26 7.11 4.97 -9.23 PassMAVE-4436 08/01/14 Zn-65 7.76 +/- 0.43 6.42 4.49 -8.35 Passa Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

b Laboratory codes as follows:

MAW (water),

MAAP (air filter),

MASO (soil), MAVE (vegetation).

c MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) andcontrol limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testingseries as a "false positive".

MAPEP does not provide control limits.(1) The high bias on the plutonium crosscheck samples was traced to contamination from a newly purchased standard.

The results of reanalysis with replacement tracer purchased from NIST:MAW-1184 Pu-238 0.68 +/- 0.10 Bq / LMAW-1184 Pu-239/240 0.66 +/- 0.10 Bq / L(2) Interference from Eu-152 resulted in misidentification of Co-57.(3) Provided in the series for "sensitivity evaluation".

MAPEP does not provide control limits.(4) False positive test. Long sample counting time lead to interference from naturally occuring Bi-214 in sample matrixwith a close spectral energy.(5) Result of reanalysis Fe-55 32.63 +/- 16.30 Bq/LD-9Page 99 of 140 Intentionally left blankPage 100 of 140 APPENDIX EERRATA DATAPage 101 of 140 Intentionally left blankPage 102 of 140 There is no errata data for 2014.Page 103 of 140 Intentionally left blankPage 104 of 140 APPENDIX FANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)Page 105 of 140 Intentionally left blankPage 106 of 140 Docket No: 50-461CLINTON POWER STATIONAnnual Radiological Groundwater Protection Program Report1 January through 31 December 2014Prepared ByTeledyne Brown Engineering Environmental ServicesP Exelon Generation.

Clinton Power StationClinton, IL 61727April 2015Page 107 of 140 Intentionally left blankPage 108 of 140 Table Of ContentsI. Sum m ary and Conclusions

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

1II. Introduction

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

3A. Objectives of the RGPP ..................................................................................

3B. Im plementation of the Objectives

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

3C. Program Description

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4D. Characteristics of Tritium (H-3) ......................................................................

5Ill. Program Description

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

5A. Sam ple Analysis

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5B. Data Interpretation

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6C. Background Analysis

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71. Background Concentrations of Tritium .................................................

7IV. Results and Discussion

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

9A. Program Exceptions

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9B. Program Changes .........................................................................................

9C. Groundwater Results ....................................................................................

9D. Surface W ater Results ..................................................................................

11E. Precipitation W ater Results ...........................................................................

11F. Recapture

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11G. Summary of Results -Inter-laboratory Comparison Program ......................

12H. Leaks, Spills, and Releases

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12I. Trends ............................................................................................................

12J. Investigations

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12K. Actions Taken ................................................................................................

12Page 109 of 140 Appendices Appendix ATablesTable A-1Location Designation of the Annual Radiological Groundwater Protection Program Report (ARGPPR)Radiological Groundwater Protection Program -Sampling Locations, Clinton Power Station, 2014Routine Well Water and Surface Water Sample Locations for theRadiological Groundwater Protection

Program, Clinton Power Station,2014FiguresAppendix BTablesTable B-1.1Table B-1.2Table B-1.3Table B-11.1Table B-11.2Table B-111.1Data Tables of the Annual Radiological Groundwater Protection Program Report (ARGPPR)Concentrations of Tritium, Strontium, Gross Alpha, and Gross Beta inGroundwater Samples Collected in the Vicinity of Clinton PowerStation, 2014.Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Clinton Power Station, 2014.Concentrations of Hard-To-Detects in Groundwater Samples Collected in the Vicinity of Clinton Power Station, 2014.Concentrations of Tritium in Surface Water Samples Collected in theVicinity of Clinton Power Station, 2014.Concentrations of Gamma Emitters in Surface Water SamplesCollected in the Vicinity of Clinton Power Station, 2014.Concentrations of Tritium in Precipitation Water Samples Collected inthe Vicinity of Clinton Power Station, 2014.iiPage I 10 of 140 I. Summary and Conclusions In 2006, Exelon instituted a comprehensive program to evaluate the impact ofstation operations on groundwater and surface water in the vicinity of ClintonPower Station (CPS). This evaluation involved numerous station personnel andcontractor support personnel.

This report covers groundwater and surface watersamples, collected outside of the Licensee required Off-Site Dose Calculation Manual (ODCM) requirements, both on and off station property in 2014. Duringthat time period, 607 analyses were performed on 104 samples from 32locations.

The monitoring was conducted in four phases.In assessing all the data gathered for this report, it was concluded that theoperation of CPS had no adverse radiological impact on the environment, andthere are no known active releases into the groundwater or surface water atCPS. No program changes occurred during the sampling year of 2014.Gamma-emitting radionuclides associated with licensed plant operations werenot detected at concentrations greater than their respective Lower Limits ofDetection (LLDs) as specified in NUREG-1 302 in any of the groundwater orsurface water samples.

In the case of tritium, Exelon specified that theindependent laboratory achieve a lower limit of detection 10 times lower than thatrequired by the United States Environmental Protection Agency (USEPA)regulation.

Strontium-89 was not detected in any samples above the LLD of 10 pCi/L.Strontium-90 was not detected in any samples above the LLD of 1 pCi/L.Tritium was not detected in any of the groundwater, surface water, orprecipitation water samples at concentrations greater than the United StatesEnvironmental Protection Agency (USEPA) drinking water standard (and theNuclear Regulatory Commission Reporting Limit) of 20,000 pCi/L. Background levels of tritium were detected at concentrations greater than the self-imposed LLD of 200 pCi/L in two of 17 groundwater monitoring locations.

The tritiumconcentrations ranged from 182 +/- 119 pCi/L to 257 +/- 132 pCi/L. Tritium was notdetected in any surface water or precipitation water.Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater samples during the third quarter of sampling in2014. Gross Alpha (dissolved) was not detected at any of the groundwater locations.

Gross Alpha (suspended) was not detected at any of the groundwater locations.

Gross Beta (dissolved) was detected in 15 of 17 groundwater locations.

The concentrations ranged from 1.1 to 10.0 pCi/L. Gross Beta(suspended) was not detected at any of the groundwater locations. Page III of 140 Hard-To-Detect analyses were performed on two groundwater locations.

Theanalyses included Fe-55, Ni-63, Am-241, Cm-242, Cm-243/244, Pu-238,Pu-239/240, U-234, U-235 and U-238. All hard-to-detect nuclides analyzed werenot found at concentrations greater than their respective MDCs.-2-Page 112 of 140 II. Introduction The Clinton Power Station (CPS), consisting of one approximately 1,140 MWgross electrical power output boiling water reactor is located in Harp Township, DeWitt County, Illinois.

CPS is owned and operated by Exelon and becameoperational in 1987. Unit No. 1 went critical on 15 February 1987. The siteencloses approximately 13,730 acres. This includes the 4,895 acre, man-madecooling lake and about 452 acres of property not owned by Exelon. The plant issituated on approximately 150 acres. The cooling water discharge flume, whichdischarges to the eastern arm of the lake, occupies an additional 130 acres.Although the nuclear reactor, supporting equipment and associated electrical generation and distribution equipment lie in Harp Township, portions of theaforementioned 13,730 acre plot reside within Wilson, Rutledge, DeWitt, Creek,Nixon and Santa Anna Townships.

This report covers those analyses performed by Teledyne Brown Engineering (TBE) on samples collected in 2014.A. Objectives of the Radiological Groundwater Protection Program (RGPP)The long-term objectives of the RGPP are as follows:1. Identify suitable locations to monitor and evaluate potential impactsfrom station operations before significant radiological impact to theenvironment and potential drinking water sources.2. Understand the local hydrogeologic regime in the vicinity of the stationand maintain up-to-date knowledge of flow patterns on the surface andshallow subsurface.

3. Perform routine water sampling and radiological analysis of water fromselected locations.

4. Report new leaks, spills, or other detections with potential radiological significance to stakeholders in a timely manner.5. Regularly assess analytical results to identify adverse trends.6. Take necessary corrective actions to protect groundwater resources.

B. Implementation of the Objectives The objectives identified have been implemented at Clinton Power Stationas discussed below:-3-Page 113 of 140

1. Exelon and its consultant identified locations as described in thePhase 1 study. Phase 1 studies were conducted by Connestoga Rovers and Associates (CRA) and the results and conclusions were made available to state and federal regulators as well as thepublic in station specific reports.2. The Clinton Power Station reports describe the local hydrogeologic regime. Periodically, the flow patterns on the surface and shallowsubsurface are updated based on ongoing measurements.

3. Clinton Power Station will continue to perform routine sampling andradiological analysis of water from selected locations.

4. Clinton Power Station has implemented new procedures to identifyand report new leaks, spills, or other detections with potential radiological significance in a timely manner.5. Clinton Power Station staff and consulting hydrogeologist assessanalytical results on an ongoing basis to identify adverse trends.C. Program Description 1 .Sample Collection Sample locations can be found in Table A-1 and Figures A-I, A-2,A-3, and A-4 Appendix A.Groundwater, Surface Water and Precipitation WaterSamples of water are collected,

managed, transported andanalyzed in accordance with approved procedures following regulatory methods.

Groundwater, surface water, and precipitation water are collected.

Sample locations, sample collection frequencies and analytical frequencies are controlled in accordance with approved station procedures.

Contractor and/or stationpersonnel are trained in the collection, preservation management, and shipment of samples, as well as in documentation of samplingevents. Analytical laboratories are subject to internal qualityassurance programs and inter-laboratory cross-check

programs, aswell as nuclear industry audits. Station personnel review andevaluate all analytical data deliverables after initial review by thecontractor.

Analytical data results are reviewed by both station personnel andan independent hydrogeologist for adverse trends or changes to-4-Page 114 of 140 hydrogeologic conditions.

D. Characteristics of Tritium (H-3)Tritium (chemical symbol H-3) is a radioactive isotope of hydrogen.

Themost common form of tritium is tritium oxide, which is also called "tritiated water." The chemical properties of tritium are essentially those of ordinaryhydrogen.

Tritiated water behaves the same as ordinary water in both theenvironment and the body. Tritium can be taken into the body by drinkingwater, breathing air, eating food, or absorption through skin. Once tritiumenters the body, it disperses quickly and is uniformly distributed throughout the body. Tritium is excreted primarily through urine with aclearance rate characterized by an effective biological half-life of about 14days. Within one month or so after ingestion, essentially all tritium iscleared.

Organically bound tritium (tritium that is incorporated in organiccompounds) can remain in the body for a longer period.Tritium is produced naturally in the upper atmosphere when cosmic raysstrike air molecules.

Tritium is also produced during nuclear weaponsexplosions, as a by-product in reactors producing electricity, and in specialproduction

reactors, where the isotopes lithium-7 and/or boron-10 areactivated to produce tritium.

Like normal water, tritiated water is colorless and odorless.

Tritiated water behaves chemically and physically like non-tritiated water in the subsurface, and therefore tritiated water will travel atthe same velocity as the average groundwater velocity.

Tritium has a half-life of approximately 12.3 years. It decaysspontaneously to helium-3 (3He). This radioactive decay releases a betaparticle (low-energy electron).

The radioactive decay of tritium is thesource of the health risk from exposure to tritium.

Tritium is one of theleast dangerous radionuclides because it emits very weak beta radiation and leaves the body relatively quickly.

Since tritium is almost always foundas water, it goes directly into soft tissues and organs. The associated dose to these tissues is generally uniform and is dependent on the watercontent of the specific tissue.Ill. Program Description A. Sample AnalysisThis section describes the general analytical methodologies used by TBEto analyze the environmental samples for radioactivity for the Clinton-5-Page 115 of 140 Power Station RGPP in 2014.In order to achieve the stated objectives, the current program includes thefollowing analyses:

1. Concentrations of gamma emitters in groundwater and surfacewater.2. Concentrations of strontium in groundwater.

3. Concentrations of tritium in groundwater, surface water andprecipitation water.4. Concentrations of gross alpha and gross beta in groundwater.

5. Concentrations of Am-241 in groundwater.

6. Concentrations of Cm-242 and Cm-243/244 in groundwater.

7. Concentrations of Pu-238 and Pu-239/240 in groundwater.

8. Concentrations of U-234, U-235 and U-238 in groundwater.

9. Concentrations of Fe-55 in groundwater.

10. Concentrations of Ni-63 in groundwater.

B. Data Interpretation The radiological data collected prior to Clinton Power Station becomingoperational were used as a baseline with which these operational datawere compared.

For the purpose of this report, Clinton Power Station wasconsidered operational at initial criticality.

Several factors were important in the interpretation of the data:1. Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is specified by federal regulation as a minimum sensitivity value that must be achieved routinely bythe analytical parameter.

2. Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium inenvironmental samples is frequently on the order of 50% of the-6-Page 116 of 140 measurement value.Statistically, the exact value of a measurement is expressed as arange with a stated level of confidence.

The convention is to reportresults with a 95% level of confidence.

The uncertainty comesfrom calibration standards, sample volume or weightmeasurements, sampling uncertainty and other factors.

Exelonreports the uncertainty of a measurement created by statistical process (counting error) as well as all sources of error (TotalPropagated Uncertainty or TPU). Each result has two valuescalculated.

Exelon reports the TPU by following the result with plusor minus +/- the estimated sample standard deviation, as TPU, thatis obtained by propagating all sources of analytical uncertainty inmeasurements.

Analytical uncertainties are reported at the 95% confidence level inthis report for reporting consistency with the AREOR.Gamma spectroscopy results for each type of sample weregrouped as follows:For groundwater and surface water 13 nuclides, Be-7, K-40,Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, Cs-134,Cs-137, Ba-140 and La-140 were reported.

C. Background AnalysisA pre-operational radiological environmental monitoring program (pre-operational REMP) was conducted to establish background radioactivity levels prior to operation of the Station.

The environmental media sampledand analyzed during the pre-operational REMP were atmospheric radiation, fall-out, domestic water, surface water, marine life, milk, andvegetation.

The results of the monitoring were detailed in the reportentitled, Environmental Radiological Monitoring for Clinton Power NuclearPower Station, Illinois Power Company, Annual Report 1987, May 1988.The pre-operational REMP contained analytical results from samplescollected from the surface water and groundwater.

1. Background Concentrations of TritiumThe purpose of the following discussion is to summarize background measurements of tritium in various media performed by others.-7-Page 117 of 140

a. Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as fromanthropogenic (i.e., man-made) sources.

In the upperatmosphere, "Cosmogenic" tritium is produced from thebombardment of stable nuclides and combines with oxygento form tritiated water, which will then enter the hydrologic cycle. Below ground, "lithogenic" tritium is produced by thebombardment of natural lithium present in crystalline rocksby neutrons produced by the radioactive decay of naturally abundant uranium and thorium.

Lithogenic production oftritium is usually negligible compared to other sources due tothe limited abundance of lithium in rock. The lithogenic tritium is introduced directly to groundwater.

A major anthropogenic source of tritium and strontium-90 comes from the former atmospheric testing of thermonuclear weapons.

Levels of tritium in precipitation increased significantly during the 1950s and early 1960s, and later withadditional

testing, resulting in the release of significant amounts of tritium to the atmosphere.

The Canadian heavywater nuclear power reactors, other commercial powerreactors, nuclear research and weapons production continueto influence tritium concentrations in the environment.

b. Precipitation DataPrecipitation samples are routinely collected at stationsaround the world for the analysis of tritium and otherradionuclides.

Two publicly available databases that providetritium concentrations in precipitation are Global Network ofIsotopes in Precipitation (GNIP) and USEPA's RadNetdatabase.

GNIP provides tritium precipitation concentration data for samples collected world wide from 1960 to 2006.RadNet provides tritium precipitation concentration data forsamples collected at stations through out the U.S. from 1960up to and including 2006. Based on GNIP data for samplestations located in the U.S. Midwest, tritium concentrations peaked around 1963. This peak, which approached 10,000pCi/L for some stations, coincided with the atmospheric testing of thermonuclear weapons.

Tritium concentrations insurface water showed a sharp decline up until 1975,followed by a gradual decline since that time. Tritiumconcentrations in Midwest precipitation have typically been-8-Page 118 of 140 below 100 pCi/L since around 1980. Tritium concentrations in wells may still be above the 200 pCi/L detection limit fromthe external causes described above.c. Surface Water DataTritium concentrations are routinely measured in ClintonLake.According to the USEPA, surface water data typically has anuncertainty

+/- 70 to 100 pCi/L 95% confidence bound oneach given measurement.

Therefore, the typicalbackground data provided may be subject to measurement uncertainty of approximately

+/- 70 to 100 pCi/L.The radio-analytical laboratory is counting tritium results toan Exelon specified LLD of 200 pCi/L. Typically, the lowestpositive measurement will be reported within a range of 40 -240 pCi/L or 140 +/- 100 pCi/L. Clearly, these sample resultscannot be distinguished as different from background at thisconcentration.

IV. Results and Discussion A. Program Exceptions

1. Sample Anomalies There were no samples anomalies in 2014.2. Missed SamplesThere were no missed samples in 2014.B. Program ChangesThere were no sampling program changes in 2014.C. Groundwater ResultsGroundwater Baseline samples were collected from off-site wells during four (4)phases at the station.

Analytical results are discussed below. No-9-Page 119 of 140 anomalies were noted during the year.TritiumSamples from 17 locations were analyzed for tritium activity (TableB-1.1 Appendix B). Tritium values ranged from below the Exelonimposed LLD of 200 pCi/I to 257 pCi/l.Strontium Strontium-89 was not detected in any of the 17 samples analyzedand the required LLD of 10 pCi/L was met. Strontium-90 was alsonot detected in any of the 17 samples analyzed and the requiredLLD of 1 pCi/L was met. (Table B-1.1 Appendix B).Gross Alpha and Gross Beta (dissolved and suspended)

Gross Alpha and Gross Beta analyses in the dissolved andsuspended fractions were performed on groundwater samplesduring the third quarter of sampling in 2014. Gross Alpha(dissolved) was not detected at any of the groundwater locations.

Gross Alpha (suspended) was not detected at any of thegroundwater locations.

Gross Beta (dissolved) was detected in 15of 17 groundwater locations.

The concentrations ranged from 1.1to 10.0 pCi/L. Gross Beta (suspended) was not detected at any ofthe groundwater locations (Table B-1.1 Appendix B).Gamma EmittersNaturally occurring K-40 was detected in one sample at aconcentration of 43 pCi/L. No other gamma emitting nuclides weredetected (Table B-1.2, Appendix B).Hard-To-Detect Hard-To-Detect analyses were performed on two groundwater locations to establish background levels. The analyses includedFe-55, Ni-63, Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-234, U-235, and U-238. All hard-to-detect nuclides were notdetected at concentrations greater than their respective MDCs.Occasionally, the isotopes of U-234 and U-238 are detected at lowlevels and indistinguishable from background (Table B-1.3Appendix B).-10-Page 120 of 140 D. Surface Water ResultsSurface WaterBaseline samples were collected from on-site surface waters duringfour (4) phases at the station.

Analytical results are discussed below. No anomalies were noted during the year.TritiumSamples from seven locations were analyzed for tritium activity(Table B-11.1 Appendix B). Tritium was not detected atconcentrations greater than the LLD.Strontium Strontium was not analyzed in 2014 (Table B-11.1 Appendix B).Gamma EmittersNo gamma emitting nuclides were detected (Table B-I1.2,Appendix B).E. Precipitation Water ResultsPrecipitation WaterPrecipitation water samples were collected during the third quarterof 2014. Analytical results are discussed below. No anomalies were noted during the year.TritiumTritium was not detected at concentrations greater than the LLD(Table B-Ill.1 Appendix B).F. Recapture Clinton Power Station conducted recapture precipitation sampling andanalysis per the Radiological Groundwater Protection Program.

Noconsistent indication of recapture was identified. Page 121 of 140 G. Summary of Results -Inter-Laboratory Comparison ProgramInter-Laboratory Comparison Program results for TBE are presented inthe Annual Radiological Environmental Operating Report.H. Leaks, Spills, and ReleasesNo leaks, spills or releases were identified during the year.TrendsThe historic low level tritium activity detected at MW-CL-14S andMW-CL-21 S has continued to decrease over the course of 2014. Allsampling well locations are currently indicating tritium levels less than therequired LLD of 200 pCi/I. All wells will continue to be sampled inaccordance with the RGPP.J. Investigations Currently no investigations are on-going.

K. Actions Taken1. Compensatory ActionsThere have been no station events requiring compensatory actions atthe Clinton Power Station in 2014.2. Installation of Monitoring WellsNo new wells were installed during the 2014.3. Actions to Recover/Reverse PlumesNo actions were required to recover or reverse groundwater plumes.-12-Page 122 of 140 APPENDIX ALOCATION DESIGNATION OF THE ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT(ARGPPR)Page 123 of 140 Intentionally left blankPage 124 of 140 TABLE A-1:Radiological Groundwater Protection Program -Sampling Locations, Clinton PowerStation, 2014SiteSite TypeB-3MW-CL-iMW-CL-2MW-CL-121 MW-CL-131 MW-CL-13S MW-CL-14S MW-CL-151 MW-CL-15S MW-CL-16S MW-CL-17S MW-CL-181 MW-CL-18S MW-CL-19S MW-CL-20S MW-CL-21S MW-CL-22S Sewage Treatment PlantSW-CL-1SW-CL-2SW-CL-4SW-CL-5SW-CL-6SW-CL-7RG-2RG-3RG-15RG-26RG-NRG-NERG-NNEMPT-1Monitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellMonitoring WellSurface WaterSurface WaterSurface WaterSurface WaterSurface WaterSurface WaterSurface WaterPrecipitation WaterPrecipitation WaterPrecipitation WaterPrecipitation WaterPrecipitation WaterPrecipitation WaterPrecipitation WaterPrecipitation WaterA-IPage 125 of 140 0 20D 400Figure A-i1Onsite Sampling Locations at Clinton Power Station

~*1KIZ,N~swcL-4h~~O-2 <~N *I/IV1 / v~-~-'N"\2 7/V/40*/ 'N N. ",N ,No\7 100 to 200 /"-iPet7/NN7'NNJ/'NFigure A -2Sampling Locations South of Clinton Power Station (51 SM4XIG,_r0 100 23OFigure A -3Sampling Locations East of Clinton Power Station 0RG-150RG-2RG-3Figure A -4Recapture Sampling Locations of Clinton Power StationA-5Page 129 of 140 Intentionally left blankPage 130 of 140 APPENDIX BDATA TABLES OF THE ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAMREPORT (ARGPPR)Page 131 of 140 Intentionally left blankPage 132 of 140 TABLE B-1.1CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSSBETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OFCLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACOLLECTION SITEB-3B-3B-3B-3MW-CL-1MW-CL-1MW-CL-1MW-CL-1MW-CL-121 MW-CL-121 MW-CL-121 MW-CL-121 MW-CL-131 MW-CL-131 MW-CL-131 MW-CL-131 MW-CL-13S MW-CL-13S MW-CL-13S MW-CL-13S MW-CL-14S MW-CL-14S MW-CL- 14SMW-CL-14S MW-CL-151 MW-CL-151 MW-CL-151 MW-CL-151 MW-CL-15S MW-CL-15S MW-CL-15S MW-CL-15S MW-CL-16S MW-CL- 16SMW-CL- 16SMW-CL-16S MW-CL-17S MW-CL-17S MW-CL-17S MW-CL-17S MW-CL-181 MW-CL-181 MW-CL-181 MW-CL-181 MW-CL-18S MW-CL-18S MW-CL-18S MW-CL-1 8SMW-CL-19S MW-CL-19S MW-CL-19S MW-CL-19S DATE02/25/1405/19/1408/18/1410/27/1402/25/1405/19/1408/18/1410/27/1402/25/1405/19/1408/18/1410/27/1402/25/1405/19/1408/18/1410/27/1402/25/1405/19/1408/18/1410/27/1402/24/1405/20/1408/19/1410/28/1402/25/1405/19/1408/18/1410/27/1402/25/1405/19/1408/18/1410/27/1402/24/1405/20/1408/19/1410/28/1402/24/1405/20/1408/19/1410/28/1402/24/1405/20/1408/19/1410/28/1402/24/1405/20/1408/19/1410/28/1402/25/1405/19/1408/18/1410/27/14H-3< 192< 176< 160< 188< 193< 176< 159< 190< 195< 176< 173< 192< 192< 174< 173< 191< 193< 172< 175< 191< 195< 175182 +/- 119257 +/- 132< 191< 174< 174< 193< 192< 171< 173< 192< 192< 172< 173< 191< 191< 171< 176< 191< 191< 175< 173< 159< 191< 176< 173< 161< 192< 171< 174< 155Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)<3.4 <0.5 <1.1<6.8 <0.8 <1.5<5.7 <0.9 <1.1< 4.4 < 0.6 < 0.7<5.3 <0.8 <0.7< 3.6<0.7 <1.3< 5.4 < 0.7 < 0.7< 6.0 < 0.9 < 0.6<5.0 <0.8 <1.1<6.5 <1.0 <1.4<6.6 <0.8 <1.0< 6.2 < 0.8 < 1.7<5.3 <0.9 <3.0< 0.4< 0.4< 0.4< 0.4< 0.4< 1.1< 1.1< 1.1<1.1< 1.1< 1.1< 0.7< 0.72.3 +/- 1.1 < 1.52.6 +/- 1.1 < 1.53.3 +/- 1.1 < 1.52.8 +/- 1.1 < 1.51.7 +/- 1.0 < 1.510.0 +/- 1.5 < 1.42.0 +/- 1.0 < 1.41.1 +/- 0.7 < 1.45.9 +/- 1.2 < 1.41.8 +/- 1.1 < 1.43.7 +/- 1.1 < 1.44.2 +/- 1.4 < 1.63.2 +/- 1.5 < 1.6Page 133 of 140B-I TABLE B-1.1CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSSBETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OFCLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACOLLECTION DATESITEH-3Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)MW-CL-2MW-CL-2MW-CL-2MW-CL-2MW-CL-20S MW-CL-20S MW-CL-20S MW-CL-20S MW-CL-21S MW-CL-21S MW-CL-21S MW-CL-21S MW-CL-22S MW-CL-22S MW-CL-22S MW-CL-22S 02/25/1405/19/1408/18/1410/27/1402/25/1405/19/1408/18/1410/27/1402/25/1405/19/1408/18/1410/27/1402/24/1405/20/1408/19/1410/28/14< 193< 174< 162< 191< 192< 174< 170< 161202 +/- 130< 178< 5.5 < 0.7 < 1.0< 5.8 < 1.0 < 1.1< 0.4< 0.7< 0.7< 0.7< 1.5< 1.53.0 +/- 1.2 < 1.6240 +/- 121 < 5.4< 184< 192< 175< 0.9 < 0.8< 1.6< 1.6< 172< 182< 6.2 < 1.0 < 1.78.7 +/- 1.4 < 1.6B-2Page 134 of 140 Table B-I.2CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- SIGMASITECOLLECTION Be-7DATEK-40 Mn-54Co-58 Fe-59Co-60 Zn-65Nb-95 Zr-95Cs-134 Cs-137 Ba-140 La-140B-3 08/18/14MW-CL-1 08/18/14MW-CL-121 08/18/14MW-CL-131 08/18/14MW-CL-1 3S 08/18/14MW-CL-14S 02/24/14MW-CL-14S 08/19/14MW-CL-151 08/18/14MW-CL-1 5S 08/18/14MW-CL-16S 08/19/14MW-CL-17S 08/19/14MW-CL-181 08/19/14MW-CL-18S 08/19/14MW-CL-19S 08/18/14MW-CL-2 08/18/14MW-CL-20S 08/18/14MW-CL-21S 02/25/14MW-CL-21S 08/18/14MW-CL-21S 10/27/14MW-CL-22S 08/19/14< 35 < 30 < 3<44 <85 <4< 38 < 38 < 4< 30 < 32 < 3< 36 < 68 < 3< 37 < 67 < 4< 27 43 26 < 3< 35 < 67 < 4< 35 < 29 < 3< 32 < 62 < 3< 36 < 35 < 4< 39 < 62 < 3< 40 < 75 < 4< 33 < 28 < 3< 39 < 69 < 4< 26 <61 < 3< 41 < 30 < 4< 38 < 75 < 3< 23 < 21 < 2< 40 < 38 < 4<4 <8<4 <9<5 <11<4 <9<4 <9<4 <8<3 <6<4 <9<4 <8<3 <6<4 <7<4 <10<5 <10<3 <8<4 <8<3 <6<4 <9<4 <8<2 <6<4 <10<4 <9<4 <8<4 <9<4 <7<4 <7<4 <7<2 <5<4 <7<3 <7<3 <6<4 <8<5 <8<4 <8<3 .<6<4 <7<3 <5<4 <9<3 <7<2 <5<3 <8<4 <7<5 <8<5 <8<4 <6<4 <7<4 <7<3 <5<4 <6<3 <6<3 <6<4 <8<4 <8<5 <7<3 <6<5 <8<3 <5<4 <8<4 <7<3 <5<5 <8<3 <4 <27 <7<4 <4 <32 <10<4 <5 <31 <11<3 <3 <25 <8<4 <4 <30 <7<4 <4 <31 <7<3 <3 <20 <6<3 <4 <27 <11<3 <3 <24 <8<3 <3 <21 <6<4 <4 <29 <8<4 <3 <32 <9<4 <4 <31 <8<3 <3 <24 <7<4 <4 <29 <9<3 <3 <22 <8<4 <4 <31 <9<4 <4 <28 <9<2 <2 <18 <5<4 <5 <31 <90LA0 TABLE B-I.3CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMAAm-241 Cm-242 Cm-243/244 Pu-238 Pu-239/240 U-234 U-235 U-< 0.03 < 0.03 < 0.14 < 0.03 < 0.05 < 0.03 < 0.04 < 0< 0.18 < 0.07 < 0.18 < 0.05 < 0.11 < 0.02 < 0.04 < 0SITEMW-CL- 14SMW-C L-21SCOLLECTION DATE08/19/1408/18/14238.05.07Fe-55* 184* 167Ni-63< 4.8iTqU.,CD TABLE B-11.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/-2 SIGMACOLLECTION SITE DATE H-3SW-CL-i 02/25/14

< 192SW-CL-I 05/19/14

< 174SW-CL-i 08/18/14

< 171SW-CL-i 10/27/14

< 162SW-CL-2 02/25/14

< 192SW-CL-2 05/19/14

< 173SW-CL-2 08/18/14

< 171SW-CL-2 10/27/14

< 162SW-CL-4 03/26/14

< 170SW-CL-4 05/19/14

< 172SW-CL-4 08/18/14

< 174SW-CL-4 10/27/14

< 164SW-CL-5 03/26/14

< 169SW-CL-5 05/19/14

< 174SW-CL-5 08/18/14

< 175SW-CL-5 10/27/14

< 163SW-CL-6 03/26/14

< 168SW-CL-6 05/19/14

< 177SW-CL-6 08/18/14

< 160SW-CL-6 10/27/14

< 184SW-CL-7 02/25/14

< 193SW-CL-7 05/19/14

< 175SW-CL-7 08/18/14

< 161SW-CL-7 10/27/14

< 163SEWAGE TREATMENT PLANT 02/25/14

< 196SEWAGE TREATMENT PLANT 05/19/14

< 173SEWAGE TREATMENT PLANT 08/18/14

< 158SEWAGE TREATMENT PLANT 10/27/14

< 156B-5Page 137 of 140 Table B-II.2CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- SIGMASITE COLLECTION Be-7DATECL-SW-CL-1 08/18/14

< 39CL-SW-CL-2 08/18/14

< 36CL-SW-CL-4 08/18/14

< 38CL-SW-CL-5 08/18/14

< 33CL-SW-CL-6 08/18/14

< 34CL-SW-CL-7 08/18/14

< 29SEWAGE TREATMENT PLANT 08/18/14

< 27K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134Cs-137 Ba-140 La-140< 38< 39< 68< 58< 24< 57< 23<4<3<3<3<3<3<2<4<4<4<4<3<3<3<8<8<10<8<8<7<7<4<3<5<3<3<3<3<8<6<7<7<7<6<5<3<4<4<4<3<3<3<7<7<7<7<7<6<5<4<4<4<3<3<3<3<4<4<4<3<3<3<3< 30* 27* 28< 28< 25< 23< 22<9<8< 10<8<9<7<8(1000C0 TABLE B-l1l.1CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SAMPLESCOLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014RESULTS IN UNITS OF PCI/LITER

+/- 2 SIGMACOLLECTION DATESITEH-3MPI-1RG-15RG-2RG-26RG-3RG-NRG-NERG-NNE07UI3/1407/03/1407/03/1407/03/1407/03/1407/03/1407/03/1407/03/14< 163< 166< 165< 167< 163< 167< 165< 164B-7Page 139 of 140 Intentionally left blankPage 140 of 140

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