Text

2014 Annual Radiological Environmental Operating Report
	ML15113B117
Person / Time
Site:	Clinton
Issue date:	04/16/2015
From:	Newcomer 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 Station 8401 Power Road Clinton, IL 61727 U-60421 0 April 16, 2015 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Clinton Power Station, Unit 1 Facility Operating License No. NPF-62 NRC Docket No. 50-461

Subject:

Clinton Power Station 2014 Annual Radiological Environmental Operating Report Exelon Generating Company, LLC (Exelon), Clinton Power Station is submitting the 2014 Annual 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 as specific 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~wcomer Site Vice Preside*

dra/cas cc: Regional Administrator - NRC Region III NRC Senior Resident Inspector - Clinton Power Station Office of Nuclear Facility Safety - Illinois Emergency Management Agency

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Docket No: 50-461 CLINTON POWER STATION Annual Radiological Environmental Operating Report 1 January Through 31 December 2014 Prepared By Teledyne Brown Engineering Environmental Services SExelonGeneration, Clinton Power Station Clinton, IL 61727 April 2015 Page 3 of 140

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Table Of Contents I. Sum mary and Conclusions .............................................................................................. 1 Il. Introduction ............................................................................................................. 3 A. Objectives of the REM P .................................................................................. 3 B. Implementation of the Objectives .................................................................. 3 III. Program Description ................................................................................................ 4 A. Sam ple Collection ........................................................................................... 4 B. Sam ple Analysis .............................................................................................. 6 C. Data Interpretation ......................................................................................... 6 D. Program Exceptions ....................................................................................... 8 E. Program Changes ......................................................................................... 12 IV. Results and Discussion ........................................................................................... 12 A. Aquatic Environment .................................................................................... 12

1. Surface Water ..................................................................................... 12

2. Drinking Water .................................................................................. 13

3. W ell W ater ......................................................................................... 13 4 . Fish ................................................................................................... .. 14

5. Sediment ............................................................................................ 14 B. Atmospheric Environment ........................................................................... 15

1. Airborne .............................................................................................. 15

a. Air Particulates ......................................................................... 15

b. Airborne Iodine ........................................................................ 16

2. Terrestrial ............................................................................................ 16 a . Milk ........................................................................................ .. 16

b. Food Products ........................................................................ 16

c. Grass ...................................................................................... 17 C. Am bient Gam ma Radiation ........................................................................... 17 D. Land Use Survey .......................................................................................... 17 E. Errata Data .................................................................................................. 18 F. Summary of Results - Inter-laboratory Comparison Program ...................... 18 V. Re fe re nce s ................................................................................................................... 21 Page 5 of 140

Appendices Appendix A Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for the Clinton Power Station, 2014 Appendix B Location Designation, Distance & Direction, and Sample Collection &

Analytical Methods Tables Table B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Clinton Power Station, 2014 Table B-2 Radiological Environmental Monitoring Program.- Summary of Sample Collection, Clinton Power Station, 2014 Fiqures Figure B-1 Environmental Sampling Locations Within One Mile of the Clinton Power Station, 2014 Figure B-2 Environmental Sampling Locations Between One and Two Miles from the Clinton Power Station, 2014 Figure B-3 Environmental Sampling Locations Between Two and Five Miles from the Clinton Power Station, 2014 Figure B-4 Environmental Sampling Locations Greater Than Five Miles from the Clinton Power Station, 2014 Appendix C Data Tables and Figures - Primary Laboratory Tables Table C-1.1 Concentrations of 1-131 in Surface Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-1.2 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-1.3 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-11.1 Concentrations of Gross Beta in Drinking Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

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Table C-11.2 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-11.3 Concentrations of 1-131 in Drinking Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-11.4 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-111.1 Concentrations of Tritium in Well Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-I11.2 Concentrations of Gamma Emitters in Ground Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-IV.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-V.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-VI.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-VI.2 Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3 pCi/cu. meter) in Air Particulate Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-VI.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-VII.1 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-VIII.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-VIII.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-IX.1 Concentrations of Gamma Emitters in Vegetation Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-IX.2 Concentrations of Gamma Emitters in Grass Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table C-X.1 Quarterly DLR Results for Clinton Power Station, 2014.

Table C-X.2 Mean Quarterly DLR Results for the Inner Ring, Outer Ring, Special Interest and Control Locations for Clinton Power Station, 2014.

Table C-X.3 Summary of the Ambient Dosimetry Program for Clinton Power Station, 2014.

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Fi-qures Figure C-1 Mean Monthly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of CPS, 2014.

Figure C-2 Mean Quarterly Ambient Gamma Radiation Levels (DLR) in the Vicinity of CPS, 2014.

Appendix D Inter-Laboratory Comparison Program Tables Table D-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2014 Table D-2 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2014 Table D-3 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2014 Appendix E Errata Data Appendix F Annual Radiological Groundwater Protection Program Report (ARGPPR) iv Page 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. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of CPS had no adverse radiological impact on the environment.

There were zero (0) radioactive liquid releases from CPS during 2014.

Releases of gaseous radioactive materials were accurately measured in plant effluents. There were no gaseous effluent releases that approached the limits specified in the CPS Offsite Dose Calculation Manual (ODCM). The highest calculated offsite dose received by a member of the public due to the release of gaseous effluents from CPS was 9.41 E-02 or 0.0941 mRem.

Surface, drinking, and well water samples were analyzed for concentrations of tritium and gamma emitting nuclides. Drinking water samples were also analyzed for concentrations of gross beta and 1-131. Naturally occurring K-40 was detected at levels consistent with those detected in previous years. No fission or activation products were detected. No tritium or gross beta activity was detected and the required lower limit of detection (LLD) was met.

Fish and shoreline sediment samples were analyzed for concentrations of gamma emitting nuclides. No fission or activation products were detected in fish or shoreline sediment samples.

Air particulate samples were analyzed for concentrations of gross beta and gamma emitting nuclides. Cosmogenic Be-7 and naturally occurring K-40 were detected at levels consistent with those detected in previous years. No fission or activation products were detected.

High sensitivity 1-131 analyses were performed on weekly air samples. All results were less than the lower limit of detection for 1-131.

Cow milk samples were analyzed for concentrations of 1-131 and gamma emitting nuclides. All results were below the required LLDs for 1-131.

Concentrations of naturally occurring K-40 were consistent with those detected in previous years. No fission or activation products were found.

Food product samples were analyzed for concentrations of gamma emitting nuclides. Concentrations of cosmogenically produced Be-7 and naturally occurring K-40 were consistent with those detected in previous years. No fission or activation products were detected.

Grass samples were analyzed for concentrations of gamma emitting nuclides.

Concentrations of cosmogenically produced Be-7 and naturally occurring K-40 were 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 using Dosimeters of Legal Record (DLR). Levels detected were consistent with those observed in previous years.

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II. Introduction The Clinton Power Station (CPS), consisting of one approximately 1,140 MW gross electrical power output boiling water reactor is located in Harp Township, DeWitt County, Illinois. CPS is owned and operated by Exelon and became operational in 1987. Unit No. 1 went critical on 15 February 1987. The site encloses approximately 13,730 acres. This includes the 4,895 acre, man-made cooling lake and about 452 acres of property not owned by Exelon. The plant is situated on approximately 150 acres. The cooling water discharge flume - which discharges 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 the aforementioned 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 1980 through 27 February 1987 and was summarized in a separate report. This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Landauer on samples collected during the period 1 January 2014 through 31 December 2014.

A. Objectives of the REMP The objectives of the REMP are to:

1. Provide data on measurable levels of radiation and radioactive materials in the site environs.

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

B. Implementation of the Objectives The implementation of the objectives is accomplished by:

1. Identifying significant exposure pathways.

2. Establishing baseline radiological data of media within those pathways.

3. Continuously monitoring those media before and during Station operation to assess Station radiological effects (if any) on man and the environment.

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Ill. Program Description A. Sample Collection This section describes the general collection methods used by Environmental Inc. (Midwest Labs) to obtain environmental samples for the CPS REMP in 2014. Sample locations and descriptions can be found in Tables B-1 and B-2, and Figures B-1 through B-3, Appendix B. The sampling methods used by Environmental Inc. (Midwest Labs) are listed in Table B-2.

Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, drinking water, well water, fish, and shoreline sediment. Two gallon water samples were collected monthly from continuous samplers located at three surface water locations (CL-90, CL-91 and CL-99) and one drinking water location (CL-14). A monthly grab sample was obtained from one surface water location (CL-1 3).

Quarterly samples were obtained from two well water locations (CL-7D and CL-12). All samples were collected in new unused plastic bottles, which were rinsed at least twice with source water prior to collection. Fish samples comprising the flesh of 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 two locations, CL-19 and CL-105. CL-105 was the control location. Shoreline sediment samples composed of recently deposited substrate were collected 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 produce and grass. Airborne iodine and particulate samples were collected and analyzed 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. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.

Milk samples were collected biweekly at one location (CL-1 16) from May through October and monthly from November through April to coincide with the grazing season. All samples were collected in new unused Page 12 of 140

plastic bottles from the bulk tank at that location, preserved with sodium bisulfite and shipped promptly to the laboratory.

Food products were collected once a month from June through September at four locations (CL-114, CL-115, CL-117 and CL-118). The control location was CL- 14. Various broadleaf vegetable samples were collected and placed in new unused plastic bags, and sent to the laboratory 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 control location. All samples were collected in new unused plastic bags and sent to the laboratory for analysis.

Ambient Gamma Radiation Direct radiation measurements were made using DLRs. Each location consisted of 2 dosimeter sets. The DLRs were exchanged quarterly and sent to Landauer for analysis. The DLR locations were placed around the CPS 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-48 and 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 and CL- 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, Page 13 of 140

where estimated annual dose from CPS, if any, would be most significant;

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

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

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

B. Sample Analysis This section describes the general analytical methodologies used by TBE and Environmental Inc. (Midwest Labs) to analyze the environmental samples for radioactivity for the 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 the following analyses:

1. Concentrations of beta emitters in drinking water and air particulates.

2. Concentrations of gamma emitters in surface, drinking and well water, 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 surface water.

5. Ambient gamma radiation levels at various on-site and off-site environs.

C. Data Interpretation The radiological and direct radiation data collected prior to CPS becoming operational was used as a baseline with which these operational data were compared. For the purpose of this report, CPS was considered operational at initial criticality. In addition, data were compared to previous years' operational data for consistency and trending. Several factors were important in the interpretation of the data:

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1. Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) was defined as the smallest concentration of radioactive material in a sample that would yield a net count (above background) that would be detected with only a 5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD was intended as a before the fact estimate of a system (including instrumentation, procedure and sample type) and not as an after the fact criteria for the presence of activity. All analyses were designed to achieve the required CPS detection capabilities for environmental sample analysis.

2. Net Activity Calculation and Reporting of Results Net activity for a sample was calculated by subtracting background activity from the sample activity. Since the REMP measures extremely small changes in radioactivity in the environment, background variations may result in sample activity being lower than the background activity resulting in a negative number. A minimum detectable concentration (MDC) was reported in all cases where positive activity was not detected.

Gamma spectroscopy results for each type of sample were grouped as follows:

For surface water, well water, fish, sediment, and milk 14 nuclides, 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 were reported.

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, were reported.

The mean and standard deviation of the results were calculated.

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

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D. Program Exceptions The exceptions (Issue Reports, IRs) described below are those that are considered '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 of Radiological Effluent Technical Specifications for Nuclear Power Plants",

October 1978, and within Radiological Assessment Branch Technical Position, Revision 1, November 1979, which states.... "Deviations are permitted from the required sampling schedule if specimens are unobtainable 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 1608889 During the weekly walkdown of liquid composite samplers it was discovered that sample collection of non-ODCM liquid compositor location CL-99 was not possible due to freezing of the North Fork Creek. This sampling unavailability is experienced during periods of sub-freezing temperatures due to the small body of water being sampled. Sample collection will be restored when the creek has thawed sufficiently.

January 08, 2014, IR 1608894 During a walkdown of liquid composite samplers it was discovered that sample collection of non-ODCM liquid compositor location CL-99 was not possible due to freezing of the North Fork Creek.

This sampling unavailability is experienced during periods of sub-freezing temperatures due to the small body of water being sampled. Sample collection will be restored when the creek has thawed sufficiently.

May 07, 2014, IR 1657101 REMP program owner identified that the drinking water compositor CL-14 was not collecting composite samples as there was no flow through the compositor. The sampling line was flushed and flow was reestablished.

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May 21, 2014, IR 1663766 While conducting a weekly compositor check for REMP location CL-91 it was discovered that the compositor was without power. A grab sample was obtained for the week; however the May composite sample will not meet the definition of a composite sample [sample aliquots shall be collected at time intervals that are very 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 properly when the vendor left the site.

August 27, 2014, IR 02473280 On Wednesday, 08/27/14 while performing the Vegetation Collections per ODCM Table 5.1-1.4.c, Sample Garden at CL-114 did not meet the minimum weight collection criteria for cabbage and was augmented with broady leaf vegetation.

September 24, 2014. IR 2386276 On Wednesday, 09/24/14 while performing Surface Water Collections, Water Compositor CL-91 was found not operating consistently, by not collecting a composite sample per ODCM Table 5.1-1.g Table Notation and Table 5.1-1.3.a. Although a replacement water compositor was available and replaced with the inoperable unit, a grab sample was also obtained to augment the weekly sample collection, meeting the monthly composite minimum volume.

On Wednesday, 09/24/14 while performing the Vegetation Collections per ODCM Table 5.1-1.4.c, Sample Garden at CL- 14 did not meet the minimum weight collection criteria for cabbage 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- 15 did not meet the minimum weight collection criteria for both cabbage 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 17 did not meet the minimum weight collection criteria for cabbage and was augmented with broady leaf vegetation. The vegetation sample collection only occurs during the harvest season of June, Page 17 of 140

July, August and September.

November 5, 2014. IR 2407027 At 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 that impacted ODCM Water Compositor CL-90 at 0.4 miles. Because the normally scheduled weekly surveillance is being performed today every Wednesday, the six hour and 28 minute gap in sampling meets the definition of exceptions pursuant to NUREG 0133 for the 'malfunctioning of sampling equipment' and other

'legitimate reasons'. Further, the gap identified, will not impact the detection capability of meeting the lower limits of detection LLD] of the sample. This will however be reported in the Annual Report pursuant to Tech Spec 5.6.3.

With a portable generator, ODCM Water Compositor CL-90 was restored to operable at 0717 hours0.0083 days 0.199 hours 0.00119 weeks 2.728185e-4 months . The sampling frequency is hourly intervals, feeding into a monthly composite. Because potentially, seven hourly intervals were missed, this meets the definition of exceptions pursuant to NUREG 0133 for the

'malfunctioning of sampling equipment' and other 'legitimate reasons'.

November 14, 2014. IR 2412724 At 0215 hours0.00249 days 0.0597 hours 3.554894e-4 weeks 8.18075e-5 months on 11/14/14 while executing WO 1490322-35 and CPS No. 3409.01, that completed the shutdown of the Service Building 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 Service Building, Chemistry returned to service, CL-14, ODCM Drinking Water Compositor back to service.

November 26, 2014 IR 02473354 During the weekly environmental monitoring surveillance for airborne iodine/particulate performed on 11/26/14, the sample collector found the indicated air sampling run time at ODCM station CL-3 to be low. In the absence of any surrounding power outages, it was determined that the sample timer was defective and was replaced. This IR was documented to address the LLDs were not obtainable due to the indicated low run time of the sample and insufficient sample volume collected.

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Throughout 2014, the following IRs were generated to note minor gaps in the sample collection run times that although were not continuous, the sample collection volumes collected were more than sufficient to meet the required ODCM LLD reporting criteria. The expectation is to document these exceptions into the Corrective Action Program for trending to determine timer failures or external utility support for seeking reliable power delivery.

IR 1608616 IR 1614260 IR 1620397 IR 1623479 IR 1626538 IR 1629591 IR 1632572 IR 1648359 IR 1653938 IR 1678628 Missed Samples February 19, 2014, IR 1623479 During a walkdown of liquid composite samplers it was found that sample collection of non-ODCM liquid compositor location CL-99 was not possible due to freezing of the North Fork Creek. This sampling unavailability is experienced during periods of sub-freezing temperatures due to the small body of water being sampled. Sample collection will be restored when the creek has thawed sufficiently.

February 26, 2014, IR 1626538 During a walkdown of liquid composite samplers, it was discovered that sample collection of non-ODCM liquid compositor location CL-99 was not possible due to freezing of the North Fork Creek. This sampling unavailability is experienced during periods of sub-freezing temperatures due to the small body of water being sampled. Sample collection was restored when the creek had thawed sufficiently.

September 25, 2014, IR 02463928 The quarterly DLR surveillance was completed with dosimeters at all DLR locations collected. This was verified by the vendor sample Page 19 of 140

collector and the Program Manager upon completion prior to shipping to the dosimetry vendor Landauer. Landauer stated they did not perform the analysis for location CL-52, due to both the primary and the secondary dosimeter being absent from the package. There was no radiological impact to the environment as a result of the missing dosimeters when comparing the adjoining monitored meteorological sectors and their results and when further coupled with a comparison of the control station.

Program exceptions were reviewed to understand the causes of the exception and to return to ODCM sample compliance before the next sampling frequency period.

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

E. Program Changes The corporate procedure CY-AA-170-1000 Radiological Environmental Monitoring Program and Meteorological Program Implementation was revised. 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 Water Samples were taken hourly from a continuous compositor at three locations (CL-90, CL-91 and CL-99) on a monthly schedule and grab samples were taken monthly from one location (CL-13). The following analyses were performed.

Iodine-131 Monthly samples from location CL-90 were analyzed for 1-131 activity (Table C-1.1, Appendix C). No 1-131 was detected in any samples and the required LLD was met.

Tritium Monthly samples from all locations were composited quarterly and Page 20 of 140

analyzed for tritium activity (Table C-1.2, Appendix C). No tritium was detected in any samples and the required LLD was met.

Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-1.3, Appendix C). Naturally occurring K-40 was found in six of 47 samples. The concentration ranged from 27 to 93 pCi/L. No other nuclides were detected and all required LLDs were met.

2. Drinking Water Monthly samples were collected from a continuous compositor at one location (CL-14). The following analyses were performed:

Gross Beta Monthly samples were analyzed for concentrations of gross beta (Tables C-11.1, Appendix C). No Gross beta was detected in any of the samples.

Tritium Monthly samples were composited quarterly and analyzed for tritium activity (Table C-11.2, Appendix C). No tritium was detected in any samples and the required LLD was met.

Iodine-131 Monthly samples from location CL-14 were analyzed for 1-131 activity (Table C-11.3, Appendix C). No 1-131 was detected in any samples 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 all required LLDs were met.

3. Well Water Quarterly grab samples were collected at two locations (CL-7D and CL-12, consisting of CL-12R [a raw water sample from this well]

and CL-12T [same well water, but after treatment and available for Page 21 of 140

consumption]). The following analyses were performed:

Tritium Samples from all locations were analyzed for tritium activity (Table C-111.1, Appendix C). No tritium was detected in any samples and the required LLD was met.

Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides (Table C-111.2, Appendix C). Naturally occurring K-40 was found 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 samples and all required LLDs were met.

4. Fish Fish 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 was performed:

Gamma Spectrometry The edible portion of fish samples from both locations was analyzed for gamma emitting nuclides (Table C-IV.1, Appendix C).

Naturally occurring K-40 was found at both locations. No fission or activation products were found. No other nuclides were detected and the required LLDs were met.

5. Shoreline Sediment Aquatic shoreline sediment samples were collected at CL-7B and CL- 05 semiannually. The following analysis was performed:

Gamma Spectrometry Shoreline sediment samples were analyzed for gamma emitting nuclides (Table C-V.1, Appendix C). Naturally occurring K-40 was detected in all samples. No fission or activation products were found. No other nuclides were detected and the required LLDs were met.

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B. Atmospheric Environment Airborne

a. Air Particulates Continuous air particulate samples were collected from 10 locations on a weekly basis. The 10 locations were separated 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 control location greater than five miles from CPS (CL- 1). The following analyses were performed:

Gross Beta Weekly samples were analyzed for concentrations of beta emitters (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 in determining 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/m 3 with a mean of 18 E-3 pCi/m 3 . The results from the Intermediate Distance location (Group II) ranged from 7 to 41 E-3 pCi/mi3 with a mean of 18 E-3 pCi/m 3 . The results from the Control locations (Group Ill) ranged from 8 to 32 E-3 pCi/m 3 with a mean of 19 E-3 pCi/m3 . Comparison of the 2014 air particulate data with previous years data indicate no effects from the operation of CPS (Figure C-5, Appendix C). In addition, a comparison of the weekly mean values for 2014 indicate no notable differences among the three groups.

Gamma Spectrometry Weekly samples were composited quarterly and analyzed for gamma emitting nuclides (Table C-VI.3, Appendix C).

Naturally occurring cosmogenically produced Be-7 due to cosmic ray activity was detected in 38 of 40 samples. No other nuclides were detected and all required LLDs were met.

Page 23 of 140

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

2. Terrestrial

a. Milk Samples were collected from CL-1 16 biweekly May through October and monthly November through April to coincide with the grazing season. The following analyses were performed:

Iodine-1 31 Milk samples were analyzed for concentrations of 1-131 (Table C-VIII.I, Appendix C). lodine-131 was not detected in any of the samples. The required LLD was met.

Gamma Spectrometry Each milk sample was analyzed for concentrations of gamma 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 were met.

b. Food Products Broadleaf vegetation samples were collected from four locations (CL-114, CL-115, CL-117 and CL-118) monthly June through September to coincide with the harvest season. 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 activity was detected in most samples. Naturally occurring K-40 Page 24 of 140

activity was found in all samples. No other nuclides were detected and all required LLDs were met.

c. Grass Samples were collected from four locations (CL-1, CL-2, CL-8, and CL-1 16) biweekly May through October. The following analysis was performed:

Gamma Spectrometry Each grass sample was analyzed for concentrations of gamma emitting nuclides (Table C-IX.2, Appendix C).

Cosmogenically produced Be-7 due to cosmic ray activity and naturally occurring K-40 were in all samples. No other nuclides 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 DLR measurements are listed in Tables C-X.1 to C-X.3, Appendix C.

A total of 215 OSLD measurements were made in 2014. The average dose from the inner ring was 22.6 mRem/quarter. The average dose from the outer ring was 22.7 mRem/quarter. The average dose from the special interest group was 22.5 mRem/quarter. The average dose from the 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 Control Station, CL-1 1, which ranged from 20.6 mRem/quarter to 21.5 mRem/quarter with an average measurement of 21.0 mRem/quarter. A comparison of the Inner Ring and Outer Ring data to the Control Location data indicate that the ambient gamma radiation levels from all the locations were comparable. The historical ambient gamma radiation data from the control location were plotted along with similar data from the Inner and Outer Ring Locations (Figure C-2, Appendix C).

D. Land Use Survey A Land Use Survey conducted during the July through October 2014 growing 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 survey was to document the nearest resident, milk producing animal and garden of greater than 538 m2 in each of the sixteen 22 /2 degree sectors around the site. The distance and direction of all locations from the CPS Station HVAC vent stack were positioned using Global Positioning System (GPS) technology. There were no changes required to the CPS REMP as a result of this survey. The results of this survey are summarized below.

Distance in Kilometers from the CPS Station HVAC Vent Stack Sector Residence Garden Milk Animal (km) (km) (km) 1 N 1.5 1.5 1.5 2 NNE 1.5 4.8 3.8 3 NE 2.1 >8 >8 4 ENE 2.9 2.9 6.6 5 E 1.7 1.7 >8 6 ESE 5.1 5.3 >8 7 SE 4.4 >8 >8 8 SSE 2.9 >8 >8 9 S 4.8 6.6 6.6 10 SSW 4.7 >8 5.5 11 SW 1.2 5.9 >8 12 WSW 3.6 3.7 5.5 13 W 2.0 3.2 >8 14 WNW 2.6 2.6 >8 15 NW 2.7 4.5 >8 16 NNW 2.1 2.1 2.1 E. Errata Data During 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 the dosimeter of legal record (DLR) as opposed to the OSLD (Optically Stimulated Luminescent Dosimeter) that is currently being used to obtain direct radiation exposure from the environment as required of the REMP program. In the current 2014 report, TLD has been replaced by DLR.

F. Summary of Results - Inter-Laboratory Comparison Program The primary laboratory analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, vegetation and water matrices for 19 analytes (Appendix D). The PE samples, supplied by Analytics Inc.,

Environmental Resource Associates (ERA) and DOE's Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against the Page 26 of 140

following pre-set acceptance criteria:

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

2. ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, NELAC, state specific PT program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable. The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.

3. DOE Evaluation Criteria MAPEP's evaluation report provides an acceptance range with associated flag values.

The MAPEP defines three levels of performance: Acceptable (flag = "A"), Acceptable with Warning (flag = "W"), and Not Acceptable (flag = "N"). Performance is considered acceptable when a mean result for the specified analyte is +/- 20% of the reference value. Performance is acceptable with warning when a mean result falls in the range from +/- 20% to +/- 30% of the reference value (i.e., 20% < bias < 30%). If the bias is greater than 30%, the results are deemed not acceptable.

In reviewing our environmental inter-laboratory crosscheck programs, we identified 1) duplication of efforts on some matrices and isotopes and 2) that we are performing crosscheck samples on some matrices and isotopes that we do not perform for clients. Since the DOE MAPEP is designed to evaluate the ability of analytical facilities to correctly analyze for radiological constituents representative of those at DOE sites, the needed changes were made to the MAPEP program. Therefore, the following isotopes were removed from the MAPEP program:

Soil - gamma - will be provided by Analytics twice per year, starting in 2015.

gammaFor 2014, one is provided bysoil gamma is provided by MAPEP, the 2nd soil Analytics.

Page 27 of 140

AP - gamma - is currently provided by Analytics.

Water - gamma, H-3, Sr-90, uranium, gross alpha and gross beta currently provided by ERA.

MAPEP evaluates non-reported (NR) analyses as failed if they were reported in the previous series.

For the TBE laboratory, 163 out of 169 analyses performed met the specified acceptance criteria. Six analyses (Ni-63, K-40 and 1-131 in water, and two Sr-90s and one Gross Alpha in AP samples) did not meet the specified acceptance criteria for the following reasons:

1. Teledyne Brown Engineering's MAPEP March 2014 Ni-63 in water result of 32.7 +/- 1.69 Bq/L was overlooked when reporting the data but would have passed the acceptance range of 23.9 - 44.2 Bq/L.

NCR 14-04

2. Teledyne Brown Engineering's MAPEP March 2014 K-40 in water result of 1.63 +/- 2.49 Bq/L was overlooked when reporting the data but would have passed the false positive test. NCR 14-04

3. Teledyne Brown Engineering's ERA November 2014 1-131 in water result 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 was evaluated as failed with a found to known ratio of 0.778. No cause could be found for the slightly low result. All previous ERA 1-131 evaluations since 2004 have been acceptable. NCR 14-08

4. Teledyne Brown Engineering's MAPEP March 2014 Sr-90 in AP result of 0.822 Bq/sample was lower than the known value of 1.18 Bq/sample, falling below the lower acceptance limit of 0.83 Bq/sample. The rerun result was still low, but fell within the lower acceptance range of 0.836 Bq/sample. The rerun result was statistically the same number as the original result. No cause could be found for the slightly low results. NCR 14-04

5. Teledyne Brown Engineering's MAPEP September 2014 Sr-90 in AP result of 0.310 Bq/sample was lower than the known value of 0.703 Bq/sample. The gravimetric yield of 117% was very high (we normally see yields of 60% to 70%) and could account for the low activity. NCR 14-09

6. Teledyne Brown Engineering's MAPEP September 2014 Gr-Alpha in AP result of 0.153 Bq/sample was lower than the known value of 0.53 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 and Procedural 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 the Development of Radiation Protection Standards," May 13, 1960.

7. International Commission on Radiation Protection, Publication 2, "Report of Committee II on Permissible Dose for Internal Radiation," (1959) with 1962 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 Sources of Radiation".

9. "Radioactivity in the Environment: Sources, Distribution and Surveillance," 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.

Page 29 of 140

15. National Research Council, 1990, Committee on Biological Effects of Ionizing Radiation (BEIR V), Board on Radiation Effects Research on Life Sciences, "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 Power Plants," Revision 1, April 1975.

17. United States Nuclear Regulatory Commission, Regulatory Guide 4.13, "Performance, Testing and Procedural Specifications for Thermoluminescence 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 Reactor Effluents 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 (Norm Operations) - 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.

Page 30 of 140

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

Page 31 of 140

Intentionally left blank Page 32 of 140

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER 1-131 12 <LLD NA 0 (PCI/LITER)

H-3 16 2000 <LLD <LLD GAMMA 47 BE-7 NA <LLD <LLD K-40 NA 50 68 93 CL-99 CONTROL 0 (3/24) (3/23) (1/11) NORTH FORK ACCESS (27/80) (52/93) 3.5 MILES NNE OF SITE MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD FE-59 30 <LLD <LLD 00 CO-60 15 <LLD <LLD 0

0 ZN-65 30 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER NB-95 15 <LLD <LLD 0 (PCI[LITER)

ZR-95 30 <LLD <LLD 0 CS-134 15 <LLD <LLD 0 CS-137 18 <LLD <LLD 0 BA-140 60 <LLD <LLD 0 LA-140 15 <LLD <LLD 0 CE-144 NA <LLD <LLD 0 DRINKING WATER GR-B 12 4 <LLD NA 0 (PCI/LITER)

CD H-3 4 2000 <LLD NA 0 C

0 1-131 12 I <LLD NA 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS DRINKING WATER GAMMA 12 (PCI/LITER) BE-7 NA <LLD NA 0 K-40 NA <LLD NA 0 MN-54 15 <LLD NA 0 CO-58 15 <LLD NA 0 FE-59 30 <LLD NA 0 CO-60 15 <LLD NA 0 ZN-65 30 <LLD NA 0 NB-95 15 <LLD NA ZR-95 30 <LLD NA 0 0

CS-134 15 <LLD NA THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS DRINKING WATER CS-137 18 <LLD NA 0 (PCI/LITER)

BA-140 60 <LLD NA 0 LA-140 15 <LLD NA 0 CE-144 NA <LLD NA 0 WELL WATER H-3 12 2000 <LLD NA 0 (PCI/LITER)

GAMMA 12 BE-7 NA <LLD NA 0 K-40 NA 30 NA 30 CL-7D INDICATOR 0 (1/12) (1/4) MASCOUTIN RECREATION AREA 2.3 MILES ESE OF SITE MN-54 15 <LLD NA 0

-w rio CO-58 15 <LLD NA 0 0

0 FE-59 30 <LLD NA 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS WELL WATER CO-60 15 <LLD NA 0 (PCI/LITER)

ZN-65 30 <LLD NA 0 NB-95 15 <LLD NA ZR-95 30 <LLD NA CS-134 15 <LLD NA 0 CS-137 18 <LLD NA 0 BA- 140 60 <LLD NA 0 LA-140 15 <LLD NA 0 tie CE-144 NA <LLD NA FISH GAMMIA 16 (PCI/KG WET) BE-7 NA <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FISH K-40 NA 3586 3447 3586 CL-I 9 INDICATOR 0 (PCI/KG WET) (8/8) (8/8) (8/8) END OF DISCHARGE FLUME (2218/4885) (3073/4029) (2218/4885) 3.4 MILES E OF SITE MN-54 130 <LLD <LLD 0 CO-58 130 <LLD <LLD 0 FE-59 260 <LLD <LLD 0 CO-60 130 <LLD <LLD 0 ZN-65 260 <LLD <LLD 0 NB-95 NA <LLD <LLD 0 ZR-95 NA <LLD <LLD 0 "o

CS-134 130 <LLD <LLD 0 0

C)

CS-137 150 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS FISH BA-140 NA <LLD <LLD 0 (PCI/KG WET)

LA-140 NA <LLD <LLD 0 CE-144 NA <LLD <LLD 0 SEDIMENT GAMMA 4 (PCI/KG DRY) BE-7 NA <LLD <LLD 0 K-40 NA 7644 8574 8574 CL-105 CONTROL 0 (2/2) (2/2) (2/2) LAKE SHELBYVILLE (7231/8056) (7515/9633) (7515/9633) 50 MILES S OF SITE MN-54 NA <LLD <LLD 0 CO-58 NA <LLD <LLD 0 FE-59 NA <LLD <LLD 0 Oro n

w CO-60 NA <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SEDIMENT ZN-65 NA <LLD <LLD 0 (PCI/KG DRY)

NB-95 NA <LLD <LLD ZR-95 NA <LLD <LLD 0 00 CS-134 150 <LLD <LLD CS-137 180 <LLD <LLD 0 BA- 140 NA <LLD <LLD LA- 140 NA <LLD <LLD CE-144 NA <LLD <LLD 0 IO AIR PARTICULATE GR-B 520 10 18 19 19 CL-3 INDICATOR (E-3 PCI/CU.METER) (468/468) (52/52) (52/52) CLINTON'S SECONDARY ACCESS ROAD (7/64) (8/32) (10/64) 0.7 MILES NE OF SITE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE GAMMA 40 (E-3 PCI/CU. METER) BE-7 NA 63 57 67 CL-8 INDICATOR 0 (34/36) (4/4) (4/4) DEWITT CEMETERY (37/93) (48/64) (49/93) 2.2 MILES E OF SITE K-40 NA 23 29 29 CL-I 1 CONTROL (1/36) (1/4) (1/4) ILLINOIS POWER SUBSTATION 16 MILES S OF SITE CO-60 NA <LLD <LLD 0 NB-95 NA <LLD <LLD 0 ZR-95 NA <LLD <LLD 0 RU-103 NA <LLD <LLD 0 RU-106 NA <LLD <LLD 0 CS-134 50 <LLD <LLD 0 <LLD CS-137 60 <LLD 0*

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE CE-141 NA <LLD <LLD 0 (E-3 PCI/CU.METER)

CE-144 NA <LLD <LLD 0 AIR IODINE GAMMA 520 (E-3 PCI/CU.METER) 1-131 70 <LLD <LLD 0 MILK 1-131 19 I NA <LLD 0 (PCI/LITER)

GAMMA 19 BE-7 NA NA <LLD 0 K-40 NA NA 1200 1200 CL-I 16 CONTROL 0 (19/19) (19/19) PASTURE IN RURAL KENNEY (1034/1294) (1034/1294) 14 MILES WSW OF SITE MN-54 NA NA <LLD 0 CO-58 NA NA <LLD 0 0*

FE-59 NA NA <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK CO-60 NA NA <LLD 0 (PCI/LITER)

ZN-65 NA NA <LLD 0 NB-95 NA NA <LLD 0 ZR-95 NA NA <LLD 0 CS-134 15 NA <LLD 0 CS-137 18 NA <LLD 0 BA-140 60 NA <LLD 0 LA-140 15 NA <LLD 0 CL 07 CE-144 NA NA <LLD 0*

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS VEGETATION GAMMA 48 (PCI/KG WET) BE-7 NA 547 464 696 CL-I 15 INDICATOR 0 (30/36) (10/12) (9/12) SITE'S SECONDARY ACCESS ROAD (156/1656) (205/922) (318/1656) 0.7 MILES NE OF SITE K-40 NA 5144 5415 5415 CL-I 14 CONTROL 0 (36/36) (12/12) (12/12) CISCO (2725/8897) (3581/8465) (3581/8465) 12.5 MILES SSE OF SITE MN-54 NA <LLD <LLD 0 I'

CO-58 NA <LLD <LLD 0 FE-59 NA <LLD <LLD 0 CO-60 NA <LLD <LLD 0 ZN-65 NA <LLD <LLD 0 (10 NB-95 NA <LLD <LLD 0 C

0 ZR-95 NA <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS VEGETATION 1-131 60 <LLD <LLD 0 (PCI/KG WET)

CS-134 60 <LLD <LLD 0 CS-137 80 <LLD <LLD 0 BA-140 NA <LLD <LLD LA-140 NA <LLD <LLD 0 CE-144 NA <LLD <LLD 0 GRASS GAMMA 52 (PCI/KG WET) BE-7 NA 1956 1671 2545 CL-02 INDICATOR (39/39) (13/13) (13/13) CLINTON'S MAIN ACCESS ROAD (371/5198) (500/4173) (518/5198) 0.7 MILES NNE OF SITE K-40 NA 5566 5330 6409 CL-08 INDICATOR (39/39) (13/13) (13/13) DEWITT CEMETERY O (5212/8596) 2.2 MILES E OF SITE (2380/8596) (4129/6425) 0T MN-54 NA <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBEROF REQUIRED MEAN(M) MEAN(M) MEAN(M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS GRASS CO-58 NA <LLD <LLD (PCI/KG WET)

FE-59 NA <LLD <LLD 0 CO-60 NA <LLD <LLD 0 ZN-65 NA <LLD <LLD 0 NB-95 NA <LLD <LLD ZR-95 NA <LLD <LLD 1-131 60 <LLD <LLD 0 IV CS-134 60 <LLD <LLD 0 0o CS-137 80 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE CLINTON POWER STATION, 2014 NAME OF FACILITY: CLINTON POWER STATION DOCKET NUMBER: 50-461 2014 LOCATION OF FACILITY: DEWITT COUNTY, IL REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS GRASS BA-140 NA <LLD <LLD 0 (PCI/KG WET)

LA-140 NA <LLD <LLD 0 CE-144 NA <LLD <LLD 0 DIRECT RADIATION DLR-QUARTERLY 215 NA 22.3 21.0 24.4 CL-23 INDICATOR 0 (MILLIREM/QTR.) (211/211) (4/4) (4/4)

(17.3/26.8) (20.6/21.5) (22.7/25.9) 0.5 MILES ENE IT~

a

-4 0

0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

Intentionally left blank Page 48 of 140

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS Page 49 of 140

Intentionally left blank Page 50 of 140

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Clinton Power Station, 2014 Location Location Description Distance & Direction From Site A. Surface Water Cl-1 3 Salt Creek Bridge on Rt. 10 (indicator) 3.6 miles SW CL-90 Discharge Flume (indicator) 0.4 miles SE CL-91 Parnell Boat Access (control) 6.1 miles ENE CL-99 North Fork Access (control) 3.5 miles NNE B. Drinking (Potable) Water CL-14 Station Plant Service Bldg (indicator) Onsite C. Well Water CL-7D Mascoutin Recreation Area (indicator) 2.3 miles ESE CL-12T DeWitt Pump House (indicator) 1.6 miles E CL-12R DeWitt Pump House (indicator) 1.6 miles E D. Milk - bi-weekly / monthly CL-116 Dement Dairy (control) 14 miles WSW E. Air Particulates / Air Iodine CL-1 Camp Quest 1.8 miles W CL-2 Clinton's Main Access Road 0.7 miles NNE CL-3 Clinton's Secondary Access Road 0.7 miles NE CL-4 Residence Near Recreation Area 0.8 miles SW CL-6 Clinton's Recreation Area 0.7 miles WSW CL-7 Mascoutin Recreation Area 2.3 miles SE CL-8 DeWitt Cemetery 2.2 miles E CL-11 Illinois Power Substation (control) 16 miles S CL-15 Rt. 900N Residence 0.9 miles N CL-94 Old Clinton Road 0.6 miles E F. Fish CL-19 End of Discharge Flume (indicator) 3.4 miles E CL-105 Lake Shelbyville (control) 50 miles S G. Shoreline Sediment CL-7B Clinton Lake (indicator) 2.1 miles SE CL-105 Lake Shelbyville (control) 50 miles S H. Food Products CL-114 Cisco (Control) 12.5 miles SSE CL-115 Site's Secondary Access Road 0.7 miles NE CL-117 Residence North of Site 0.9 miles N CL-118 Site's Main Access Road 0.7 miles NNE I. Grass CL-1 Camp Quest 1.8 miles W CL-2 Clinton's Main Access Road 0.7 miles NNE CL-8 DeWitt Cemetery 2.2 miles E CL-116 Pasture in Rural Kenney (control) 14 miles WSW B-1 Page 51 of 140

TABLE B-i: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Clinton Power Station, 2014 Location Location Description Distance & Direction From Site J. Environmental Dosimetry - DLR Inner Ring CL-1 1.8 miles W CL-5 0.7 miles NNE CL-22 0.6 miles NE CL-23 0.5 miles ENE CL-24 0.5 miles E CL-34 0.8 miles WNW CL-35 0.7 miles NW CL-36 0.6 miles N CL-42 2.8 miles ESE CL-43 2.8 miles SE CL-44 2.3 miles SSE CL-45 2.8 miles S CL-46 2.8 miles SSW CL-47 3.3 miles SW CL-48 2.3 miles WSW CL-63 1.3 miles NNW Outer Ring CL-51 4.4 miles NW CL-52 4.3 miles NNW CL-53 4.3 miles E CL-54 4.6 miles ESE CL-55 4.1 miles SE CL-56 4.1 miles SSE CL-57 4.6 miles S CL-58 4.3 miles SSW CL-60 4.5 miles SW CL-61 4.5 miles WSW CL-76 4.6 miles N CL-77 4.5 miles NNE CL-78 4.8 miles NE CL-79 4.5 miles ENE CL-80 4.1 miles W CL-81 4.5 miles WNW B-2 Page 52 of 140

TABLE B-i: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Clinton Power Station, 2014 Location Location Description Distance & Direction From Site J. Environmental Dosimetry - DLR (cont.)

Special Interest CL-37 3.4 miles N CL-41 2.4 miles E CL-49 3.5 miles W CL-64 2.1 miles WNW CL-65 2.6 miles ENE CL-74 1.9 miles W CL-75 0.9 miles N Supplemental CL-2 0.7 miles NNE CL-3 0.7 miles NE CL-4 0.8 miles SW CL-6 0.8 miles WSW CL-7 2.3 miles SE CL-8 2.2 miles E CL-15 0.9 miles N CL-33 11.7 miles SW CL-84 0.6 miles E CL-90 0.4 miles SE CL-91 6.1 miles ENE CL-97 10.3 miles SW CL-99 3.5 miles NNE CL-1 14 12.5 miles SE Control CL-11 16 miles S B-3 Page 53 of 140

TABLE B-2: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Clinton Power Station, 2014 Sample Analysis Sampling Method Analytical Procedure Number Medium Surface Gamma Monthly composite TBE, TBE-2007 Gamma emitting radioisotope analysis Water Spectroscopy from a continuous water compositor. Env. Inc., SPM-1 Sampling Procedure Manual Surface Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquid Water from a continuous scintillation water compositor.

Env. Inc., SPM-1 Sampling Procedure Manual Surface 1-131 Monthly composite TBE, TBE-2012 Radioiodine in various matrices Water from a continuous water compositor. Env. Inc., SPM-1 Sampling Procedure Manual Drinking Gross Beta Monthly composite TBE, TBE-2008 Gross Alpha and/or gross beta activity in Water from a continuous various matrices water compositor.

Env. Inc., SPM-1 Sampling Procedure Manual Drinking Gamma Monthly composite TBE, TBE-2007 Gamma emitting radioisotope analysis Water Spectroscopy from a continuous water compositor. Env. Inc., SPM-1 Sampling Procedure Manual Drinking Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquid Water from a continuous scintillation water compositor.

Env. Inc., SPM-1 Sampling Procedure Manual Drinking 1-131 Quarterly composite TBE, TBE-2031 Radioactive Iodine in Drinking Water Water from a continuous water compositor. Env. Inc., SPM-1 Sampling Procedure Manual Well Water Gamma Quarterly composite TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy from a continuous water compositor. Env. Inc., SPM-1 Sampling Procedure Manual Well Water Tritium Quarterly composite TBE, TBE-2011 Tritium analysis in drinking water by liquid from a continuous scintillation water compositor.

Env. Inc., SPM-1 Sampling Procedure Manual Fish Gamma Semi-annual samples TBE-2007 Gamma emitting radioisotope analysis Spectroscopy collected via electroshocking or other techniques Env. Inc., SPM-1 Sampling Procedure Manual Air Gross Beta One-week composite TBE, TBE-2008 Gross Alpha and/or gross beta activity in Particulates of continuous air various matrices sampling through glass fiber filter paper Env. Inc., SPM-1 Sampling Procedure Manual Air Gamma Quarterly composite of TBE, TBE-2007 Gamma emitting radioisotope analysis Particulates Spectroscopy each station Env. Inc., SPM-1 Sampling Procedure Manual Air Iodine Gamma One-week composite TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy of continuous air sampling through Env. Inc., SPM-1 Sampling Procedure Manual charcoal filter Milk 1-131 Bi-weekly grab sample TBE, TBE-2012 Radioiodine in various matrices when cows are on pasture. Monthly all other times Env. Inc., SPM-1 Sampling Procedure Manual Milk Gamma Bi-weekly grab sample TBE-2007 Gamma emitting radioisotope analysis Spectroscopy when cows are on pasture. Monthly all other times Env. Inc., SPM-1 Sampling Procedure Manual B-4 Page 54 of 140

TABLE B-2: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Clinton Power Station, 2014 Sample Analysis Sampling Method Analytical Procedure Number Medium Food Gross Beta Monthly grab June TBE, TBE-2008 Gross Alpha and/or gross beta activity in Products through September various matrices Env. Inc., SPM-1 Sampling Procedure Manual Food Gamma Monthly grab June TBE, TBE-2007 Gamma emitting radioisotopes analysis Products Spectroscopy through September Env. Inc., SPM-1 Sampling Procedure Manual Grass Gamma Biweekly May through TBE, TBE-2007 Gamma emitting radioisotopes analysis Spectroscopy October Env. Inc., SPM-1 Sampling Procedure Manual DLR Optically Stimulated Quarterly DLRs Landauer Incorporated Luminescence comprised of two Dosimetry Ai 2 0 3 :C Landauer Incorporated elements.

B-5 Page 55 of 140

Figure B-1 Environmental Sampling Locations Within One Mile of the Clinton Power Station, 2014 B-6 Page 56 of 140

Figure B-2 Environmental Sampling Locations Between One and Two Miles of the Clinton Power Station, 2014 B-7 Page 57 of 140

B-8 Page 58 of 140 Figure B-4 Enwonmental Samping Locations Greater Than Five Miles of the Clinton Power Station, 2014 B-9 Page 59 of 140

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APPENDIX C DATA TABLES AND FIGURES -

PRIMARY LABORATORY Page 61 of 140

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Table C-1.1 .CONCENTRATIONS OF 1-131 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION CL-90 PERIOD U

12/26/13 - 01/29/14

0.7 01/29/14 - 02/26/14 < 0.8 02/26/14 - 03/26/14 < 0.7 03/26/14 - 04/30/14

0.7 04/30/14 - 05/28/14 (1) < 0.8 05/28/14 - 06/25/14 < 0.5 06/25/14 - 07/30/14 < 0.5 07/30/14 - 08/27/14 < 0.5 08/27/14 - 09/24/14 < 0.5 09/24/14 - 10/29/14 < 0.5 10/29/14 - 11/26/14 (1) < 0.5 11/26/14 - 12/31/14 < 0.8 MEAN Table C-I.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION CL-90 CL-13 CL-91 CL-99 PERIOD U

12/26/13 - 03/26/14 < 189 189 < 188 < 189 (1) 03/26/14 - 06/25/14 < 187 187 < 185 (1) < 184 06/25/14 - 09/24/14 < 183 183 < 184 (1) < 183 09/24/14 - 12/31/14 < 189 (1) 184 < 186 < 187 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1 Page 63 of 140

Table C-I.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-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 PERIOD CL-13 01/29/14 - 01/29/14 < 40 < 77 <4 <4 10 <4 < 12 <4 <8 <4 <4 < 24 <7 < 40 02/26/14 - 02/26/14 < 39 < 75 <4 <4 10 <5 <8 <5 <8 <4 <4

24 < 12

28 03/26/14 - 03/26/14 < 33 < 61 <3 <3 8 <3 <6 <3 <7 <3 <3 < 31 <8 < 24 04/30/14 - 04/30/14 < 20 41 + 33 <2 <2 5 <2 <4 <2 <4 <2 <2 < 16 <5 <15 05/28/14 - 05/28/14

56 < 63 <5 <6 14 <6 <11 <6 < 12 <6 <7 < 23 < 10 < 43 06/25/14 - 06/25/14 < 38 < 75 <6 <5 10 <6 <8 <5 < 10 <5 <5 < 23 <4

36 07/30/14 - 07/30/14 < 40 < 75 <4 <4 10 <4 <9 <6 <9 <5 <5 < 31 <10 < 35 08/27/14 - 08/27/14 < 34 < 36 <4 <4 9 <4 <9 <5 <7 <4 <4 < 18 <7 < 26 09/24/14 - 09/24/14 <44 < 84 <5 <5 10 <5 <8 <6 <8 <5 <5 < 34 < 10 < 39 10/29/14 - 10/29/14 < 53 < 55 <7 <6 12 <6 < 11 <6 < 12 <6 <5 < 31 <7 < 46 11/26/14 - 11/26/14 < 49 < 88 <5 <4 11 <5 < 11 <5 <11 <4 <5 < 30 <7 < 39

< 11 12/31/14 - 12/31/14

51 < 44 <6 <5 13 <6 <10 <8 <5 <6 < 33 <8 < 42 MEAN CL-90 12/26/13 - 01/29/14 < 42 < 102 <4 <4 10 <4 <8 <5 <9 <5 <6 < 24 <6 38 01/29/14 - 02/26/14 < 37 <47 <4 <4 9 <4 <.9 <4 <8 <4 <4 < 29 < 10 33 02/26/14 - 03/26/14 < 25 <67 <2 <2 6 <3 <4 <3 <4 <2 <2 < 23 <7 17 r) 03/26/14 - 04/30/14 < 18 27 +/- 27 < 2 <2 4 <2 <4 <2 <4 <2 <2 < 14 <5 14 04/30/14 - 05/28/14 (1) < 53 <67 <6 <6 11 <7 < 10 <6 <9 <5 <7 < 26 <9 34 05/28/14 - 06/25/14 < 46 <62 <5 <5 9 <5 <9 <6 <7 <5 <6

22 <6 42 06/25/14 - 07/30/14 < 51 <91 <5 <6 13 <5 < 10 <6 < 11 <6 <6 < 33 < 11 44 07/30/14 - 08/27/14 < 41 80 +/-48 <4 <4 9 <4 < 10 <5 <8 <5 <5

24 <7 42 08/27/14 - 09/24/14 < 43 <38 <4 <4 10 <3 <9 <5 <7 <5 <4

29 <9 34 09/24/14 - 10/29/14 < 56 < 117 < 6 <6 11 <6 <13 <6 < 10 <5 <7

25 <10 40 10/29/14 - 11/26/14 (1) < 42 <91 <4 <3 9 <5 <7 <5 <8 <5 <4 < 26 <6 37 11/26/14 - 12/31/14 < 65 < 72 < 6 <7 16 <7 < 12 <7 < 10 <8 <6 < 33 < 14 50 MEAN 54 +/- 75

-w ri THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-1.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-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 PERIOD CL-91 12/26/13 - 01/29/14 < 42 < 46 <5 <5 < 10 <4 < 10 <4 < 8 < 5 < 5 < Z3

40 01/29/14 - 02/26/14 < 39 < 30 <5 <4 <9 <5 <8 <5 <9 <4 <4 < 34 <9 < 33 02/26/14 - 03/26/14 < 27 < 53 <3 <3 <6 <3 <5 <3 <5 <3 <3

25 <7

21 03/26/14 - 04/30/14 < 14 52 +/- 27 <1 <1 <3 <2 <2 <2 <3 <1 <1

10 <3 <12 04/30/14 - 05/28/14 (1) < 48

106 <5 <5 <8 <7 <10 <5 <9 <5 <6

21 <8

38 05/28/14 - 06/25/14 < 35 < 46 <4 <4 < 10 <5 <8 <5 <8 <4 <5

20 <7 < 35 06/25/14 - 07/30/14 < 46 58 +/- 46 <5 <5 <11 <5 <10 <5 < 10 <5 <5

32 <10

40 07/30/14 - 08/27/14 < 23

27 <3 <3 <7 <3 <6 <3 <5 <3 <3

14 <4

24 08/27/14 - 09/24/14 (1) < 39 < 36 <4 <4 <7 <3 <7 <5 <8 <4 <4

32 <7 < 37 09/24/14 - 10/29/14 < 47 < 95 <4 <6 <8 <5 <8 <5 <9 <5 <5

24 <7 < 37 10/29/14 - 11/26/14 < 44

86 <4 <5

10 <4 <8 <4 <9 <4 <5

26 <8 < 39 11/26/14 - 12/31/14 < 55 < 57 <6 <6

13 <6 <12 <5 < 10 <5 <6

28 <11 < 45 MEAN 55 +/- 9 CL-99 01/15/14 - 01/29/14 (1) < 37 < 53 <5 <4 <9 <5 <9 <4 <8 <4 <5

18 <7

31 01/29/14 - 02/26/14 (1) 03/12/14 - 03/26/14 (1)

30

71 <3 <3 <9 <4 <7 <4 <6 <3 <3

29 <7

18 03/26/14 - 04/30/14

17

15 <2 <2 <4 <2 <4 <2 <3 <2 <2 < 14 <5

13 04/30/14 - 05/28/14 < 42

87 <4 <5 <9 <5 <10 <4 <9 <4 <5

23 <6 < 37 05/28/14 - 06/25/14 < 54 < 60 <7 <8

14 <7 <14 <7 < 13 <6 <6

29 <11

40 06/25/14 - 07/30/14 < 33 < 97 <6 <5

12 <5 <8 <4 <8 <5 <6

30 < 15

32 07/30/14 - 08/27/14 < 35

51 <4 <4 <9 <4 <7 <4 <7 <3 <5

20 <6

32 08/27/14 - 09/24/14 < 39 < 42 <4 <4 <10 <4 <9 <5 <7 <4 <4

28 <11 < 35 09/24/14 - 10/29/14 < 59 93 +/- 55 <7 <6

14 <7 <10 <6 <11 <7 <8

32 <9

88 10/29/14 - 11/26/14 < 41

85 <5 <6 <11 <5 <11 <5 <8 <5 <5

29 <10

38 11/26/14 - 12/31/14

60

56 <5 <6 <13 <5 <13 <6 < 12 <7 <6 < 33

10

56 MEAN O*q 0' THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES cy, (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION 0

1

Table C-I1.1 CONCENTRATIONS OF GROSS BETA IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION CL-14 PERIOD 12/26/13 - 01129/14 < 1.5 01/29/14 - 02/26/14 < 1.6 02/26/14 - 03/26/14 < 1.5 03/26/14 - 04/30/14 < 1.6 04/30/14 - 05/28/14 (1) < 1.3 05/28/14 - 06/25/14 < 1.6 06/25/14 - 07/30/14 < 1.7 07/30/14 - 08/27/14 < 1.5 08/27/14 - 09/24/14 < 1.7 09/24/14 - 10/29/14 < 1.6 10/29/14 - 11/26/14 (1) < 1.8 11/26/14 - 12/31/14 < 1.5 MEAN Table C-11.2 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION CL-14 PERIOD 01/15/14 03/26/14 < 188 03/26/14 - 06/25/14 (1) < 184 06/25/14 - 09/24/14 < 185 09/24/14 - 12/31/14 (1) < 190 MEAN Table C-11.3 CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION CL-14 PERIOD 12/26/13 - 01/29/14 < 0.9 01/29/14 - 02/26/14 < 0.7 02/26/14 - 03/26/14 < 0.8 03/26/14 - 04/30/14 < 0.8 04/30/14 - 05/28/14 (1) < 0.8 05/28/14 - 06/25/14 < 0.6 06/25/14 - 07/30/14 < 0.5 07/30/14 - 08/27/14 < 0.7 08/27/14 - 09/24/14 < 0.6 09/24/14 - 10/29/14 < 0.6 10/29/14 - 11/26/14 (1) < 0.5 11/26/14 - 12/31/14 < 0.8 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-4 Page 66 of 140

Table C-11.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-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 PERIOD CL-14 12/26/13 - 01/29/14 < 33 < 31 <4 <4 <8 <4 <7 4 7 <4 <3 < 17 <6 < 35 01/29/14 - 02/26/14 < 54 < 110 <6 <7 < 12 <7 < 11 7 12 <7 <7

32 < 11 < 39 02/26/14 - 03/26/14 < 27 < 22 <2 <3 <5 <3 <5 3 5 <2 <3 < 23 <5 < 21 03/26/14 - 04/30/14 < 21 < 22 <2 <3 <6 <3 <5 3 4 <2 <2 < 18 <6 < 12 04/30/14 - 05/28/14 (1) < 38 < 85 <4 <4 <7 <3 <9 4 7 <4 <5 < 21 <6 < 32 05/28/14 - 06/25/14 < 63 < 133 <6 <8 < 15 <8 < 12 9 15 <6 <8

28 < 12 < 52 06/25/14 - 07/30/14 < 48 < 100 <5 <4 < 11 <4 < 11 5 10 <5 <5 < 32 < 10 < 38 07/30/14 - 08/27/14 < 33 < 32 <4 <4 <8 <4 <9 4 7 <4 <4

20 <5 < 27 08/27/14 - 09/24/14 < 43 < 93 <4 <4 < 12 <5 < 10 5 9 <5 <5 < 33 < 11 < 38 09/24/14 - 10/29/14 < 71 < 56 <6 <7 < 11 <7 < 10 7 12 <7 <7

30 < 11 < 57 10129/14 - 11/26/14 (1) < 52 < 123 <5 <5

10 <5 < 12 6 9 <5 <6 < 24 <8 < 49 11/26/14 - 12/31/14 < 50 < 44 <5 <6 < 13 <5 <13 7 13 <6 <6

25 < 15 < 32 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION 0=

Table C-II1.1 CONCENTRATIONS OF TRITIUM IN WELL WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION CL-12R CL-12T CL-7D PERIOD 03/26/14 - 03/26/14 < 168 < 164 < 168 06/25/14 - 06/25/14 < 165 < 167 < 165 09/24/14 - 09/24/14 < 180 < 179 < 178 12/31/14 - 12/31/14 < 178 < 183 < 182 MEAN C-6 Page 68 of 140

Table C-111.2 CONCENTRATIONS OF GAMMA EMITTERS IN WELL WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-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 PERIOD CL-12R 03/26114 < 16 < 31 <2 <2 <4 <2 <3 <2 <3 <2 2 <12 <4 < 12 06/25/14 < 63

63 <5 <7 <12 <6 <16 <7 <12 <7 8 < 33 < 11 < 52 09/24/14 < 46 < 47 <5 <5 <11 <5 <9 <5 <8 <5 4 < 34 <8 < 35 12/31/14 < 68

76 <8 <8 <14 <8 <15 <8 <14 <8 8 < 37 < 10 < 51 MEAN CL-12T 03/26/14 < 21 < 39 2 <2 5 <2 <4 <2 <4 <2 2

20 <6 17 06/25/14 < 50 < 97 7 <6 12 <5 <13 <6 <10 <6 6

27 <6 52 09/24/14 < 46 < 69 5 <4 11 <5 <10 <5 <8 <4 6 < 33 <10 37 12/31/14 < 68 < 90 7 <6 13 <8 <17 <7 <10 <7 5

28 *13 50 MEAN CL-7D 03/26/14 *18 30 +/- 27 2 <2 <4 <2 <4 <2 <4 <2 2 <15 <4 < 15 06/25/14 < 54 57 5 <5 <10 <6 <11 <6 <10 <5 6 <23 <8 < 38 09/24/14

46 53 5 <5 <11 <4 <9 <6 <9 <4 5 <37 < 11 < 38 12/31/14

58 126 7 <8 <14 <7 <14 <8 <14 <7 7 < 34 < 9 < 51 MEAN aq 0

0

Table C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Be-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 PERIOD CL-105 bluegill 05/05/14

763 4029 1357 < 76 < 89 < 183 < 75 < 173 < 94 < 178 < 70 < 69 < 887 < 277 < 406 carp 05/05/14 < 643 3201 815 < 68 < 60 < 129 < 58 < 126 < 84 < 155 < 61 < 71 < 830 < 265 < 440 crappie 05/05/14 < 789 3550 1037

76 < 78 < 224 < 51 < 178 < 89 < 142 < 74 < 69 < 930 < 200 < 492 largemouth bass 05/05/14 < 458 3790 847 < 47 < 58 < 134 < 57 < 83 < 60 < 84 < 43 < 39 < 605 < 240 < 232 bluegill 10/01/14 < 551 3073 828 < 61 < 56 < 136 < 63 < 125 < 71 < 124 < 63 < 57 < 513 < 209 < 303 carp 10/01/14 < 511 3166 818 < 55 < 57 < 143 < 63 < 109 < 63 < 102 < 51 < 53 < 442 < 126 < 311 largemouth bass 10/01/14 < 795 3315 1131 < 73 < 81 < 172 < 71 < 179 < 97 < 141 < 66 < 85 < 632 < 225

442 white bass 10/01/14 < 627 3450 1029 < 61 < 67 < 186 < 74 < 124 < 73 < 121 < 66 < 59 < 617 < 123 < 417 MEAN 3447 +/- 661 CL-19 bluegill 05/05/14 < 892 3685 1123 < 78 < 97 < 202 < 92 < 213 < 102 < 191 < 98 < 94 < 885 < 277 < 580 carp 05/05/14 < 864 4885 1365 < 97 < 104 < 189 < 84 < 161 < 130 < 155 < 96 < 69 < 1151 < 287 < 539 channel catfish 05/05/14 < 596 2976 854 < 61 < 68 < 119 < 57 < 145 < 76 < 115 < 59 < 59 < 772 < 170 < 291 largemouth bass 05/05/14 < 1012 4676 1271 < 85 < 118

215 < 83 < 209 < 111 < 216 < 91 < 93 < 1091 < 273 < 679

(-I bluegill 10/01/14 < 703 2536 938 < 74 < 69 < 144 < 67 < 147 < 77 < 139 < 73 < 70 < 621 < 158 < 455 carp 10/01/14 < 758 4566 1144 < 77 < 85 < 197 < 78 < 151

90 < 132 < 73 < 76 < 632

231 < 595 channel catfish 10101/14 < 725 3145 1085 < 83 < 95 < 188 < 64 < 159 < 44 < 135 < 66 < 80 < 608 < 292 < 437 largemouth bass 10/01/14 < 763 2218 1351 < 93 < 84 < 255 < 106 < 207 < 124 < 164 < 91 < 70 < 739 < 211 < 529 MEAN 3586 +/- 2054 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES 0

0;

Table C-V.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMA SITE COLLECTION Be-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 PERIOD Z-Zi CL-07B 05/05/14 < 375 8056 +/- 996 < 42 < 43 < 109 < 42 < 72 < 47 < 81 < 40 < 49 < 262 < 52 < 272 10/01/14 < 463 7231 +/- 809 < 46 < 47 < 117 < 40 < 127 < 54 < 97 < 49 < 44 < 588 < 147 < 283 MEAN - 7644 +/- 1167 - - - - - -

CL-105 05/05/14 < 352 9633 +/- 1013 < 40 <40 < 90 < 38 < 110 <48 < 84 < 43 < 45 < 233 < 77 < 240 10/01/14 < 356 7515 +/- 752 < 36 < 36 < 94 < 33 < 71 < 37 < 56 < 30 < 35 < 429 < 122 < 200 MEAN - 8574 +/- 2995 - - - - - -

-J 0* THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES

Table C-VI.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/-2 SIGMA COLLECTION GROUP I PERIOD CL-2 CL-3 CL-4 CL-6 CL-15 CL-94 01/01/14 -01/08/14 24 +/-5 24 +/-5 21 +/- 4 25 +/-5 22 +/-4 25 +/-5 01/08/14 -01/15/14 25 +/- 5 22 +/- 5 22 +/- 5 17 +/- 4 18 +/- 5 25 +/- 5 01/15/14 -01/22/14 18 +/-4 18 +/-4 18 +/-4 22 +/-5 22 +/-5 20 +/-4 01/22/14 -01/29/14 14 +/-4 15 +/-4 12 +/-4 14 +/-4 16 +/-4 16+/- 4 01/29/14 -02/05/14 24 +/-5 24 +/-5 21 +/-4 23 +/-5 25 +/-5 18+/- 4 02/05/14 -02/12/14 25 +/-6 20 +/-5 23 +/-5 21 +/-5 23 +/-5 26+/- 5 02/12/14-02/19/14 28 +/-6 28 +/-5 26 +/-5 30 +/-5 27 +/-5 33 +/-5 02/19/14 -02/26/14 19 +/-5 16 +/-4 18 +/-4 20 +/-5 17 +/-4 18+/- 4 02/26/14-03/05/14 33 +/-6 25 +/-5 29 +/-5 29 +/-5 27 +/-5 22+/- 4 03/05/14 -03/12/14 21 +/- 5 23 +/- 5 19 +/- 5 24 +/- 5 18 +/- 5 23 +/- 5 03/12/14 -03/19/14 12 +/- 4 16 +/- 4 15 +/- 4 11 +/- 4 18 +/- 4 15 +/- 4 03/19/14 -03/26/14 17 +/-4 17 +/-4 16 +/-4 16 +/-4 12 +/-4 17+/- 4 03/26/14 -04/02/14 14 +/-4 16 +/-4 19 +/-4 20 +/-5 18 +/-4 14 +/-4 04/02/14 -04/09/14 17 +/- 5 13 +/- 4 11 +/- 4 9 +/- 4 10 +/- 4 8 +/- 4 04/09/14 -04/16/14 15 +/-4 15 +/-4 16 +/-4 14 +/-4 14 +/-4 16 +/-4 04/16/14 -04/23/14 18 +/-4 19 +/-5 14 +/-4 16 +/-4 16 +/-4 16+/- 4 04/23/14 -04/30/14 8 +/-4 11 +/- 4 11 +/- 4 8 +/- 4 11 +/- 4 7 +/- 4 04/30/14 -05/07/14 13 +/-4 13 +/-4 10 +/-4 9 +/-4 10 +/-4 7 +/-4 05/07/14 -05/14/14 16 +/-4 14 +/-4 21 +/- 4 18 +/-4 14 +/-4 15+/- 4 05/14/14 -05/21/14 10 +/-4 14 +/-4 15 +/-4 14 +/-4 12 +/-4 16+/- 4 05/21/14 -05/28/14 19 +/- 4 18 +/- 4 18 +/- 4 16 +/- 4 17 +/- 4 11 +/- 4 05/28/14 -06/04/14 18 +/-4 15 +/-4 17 +/-4 18 +/-4 18 +/-4 17+/- 4 06/04/14 -06/11114 17 +/- 4 13 +/- 4 15 +/- 4 12 +/- 4 11 +/- 4 16 +/- 4 06/11/14 -06/18/14 21 +/- 5 18 +/- 5 17 +/- 4 17 +/- 4 16 +/- 4 17 +/- 4 06/18/14 -06/25/14 13 +/- 4 16 +/- 5 13 +/- 4 15 +/- 4 11 +/- 4 13 +/- 4 06/25/14 -07/02/14 14 +/- 4 11 +/- 4 9 +/- 4 9 +/- 4 10 +/- 4 10 +/- 4 07/02/14 -07/09/14 14 +/- 4 10 +/- 4 11 +/- 4 15 +/- 4 19 +/- 4 15 +/- 4 07/09/14 -07/16/14 14 +/-4 14 +/-4 16 +/-4 14 +/-4 15 +/-4 13+/- 4 07/16/14-07/23/14 27 +/-5 26 +/-5 23 +/-5 22 +/-4 28 +/-5 25+/- 5 07/23/14 -07/30/14 12 +/- 4 15 +/- 4 15 +/- 4 16 +/- 4 14 +/- 4 11 +/- 4 07/30/14-08/06/14 26 +/-5 29 +/-5 27 +/-5 25 +/-5 25 +/-5 31+/- 5 08/06/14-08/13/14 22 +/-5 20 +/-4 28 +/-5 24 +/-5 21 +/-5 22+/- 4 08/13/14 -08/20/14 24 +/-5 20 +/-5 22 +/-5 22 +/-5 18 +/-5 18+/- 5 08/20/14 -08/27/14 20 +/-5 23 +/-5 21 +/-5 22 +/-5 14 +/-4 19+/- 5 08/27/14 -09/03/14 17 +/-4 15 +/-4 19 +/-4 21 +/-5 18 +/-4 20+/- 4 09/03/14 -09/10/14 17 +/-4 18 +/-5 15 +/-4 15 +/-4 19 +/-5 12+/- 4 09/10/14 -09/17/14 11 +/- 4 11 +/- 4 11 +/- 4 12 +/- 4 10 +/- 4 9 +/- 4 09/17/14 -09/24/14 21 +/-5 18 +/-5 18 +/-4 17 +/-5 22 +/-5 22+/- 5 09/24/14 -10/01/14 22 +/-4 20 +/-4 22 +/-4 19 +/-4 25 +/-5 22+/- 5 10/01/14 -10/08/14 15 +/- 4 13 +/- 4 13 +/- 4 12 +/- 4 11 +/- 4 13 +/- 4 10/08/14 -10/15/14 16 +/-4 13 +/-4 12 +/-4 15 +/-4 12 +/-4 17+/- 4 10/15/14 -10/22/14 15 +/- 4 12 +/- 4 13 +/- 4 12 +/- 4 11 +/- 4 14 +/- 4 10/22/14 -10/29/14 22 +/-5 19 +/-5 18 +/-5 21 +/-5 16 +/-5 20+/- 5 10/29/14 -11/05/14 12 +/- 4 14 +/- 4 13 +/- 4 22 +/- 5 16 +/- 4 15 +/- 4 11/05/14 -11/12/14 13 +/- 4 16 +/- 4 17 +/- 4 18 +/- 4 16 +/- 4 15 +/- 4 11/12/14 -11/19/14 18 +/- 4 18 +/- 4 22 +/- 5 18 +/- 4 19 +/- 4 14 +/- 4 11/19/14 -11/26/14 21 +/- 4 64 +/- 11 (1) 23 +/- 4 22 +/- 4 28 +/- 5 23 +/- 4 11/26/14 -12/03/14 28 +/- 5 29 +/- 5 27 +/- 5 29 +/- 5 21 +/- 5 27 +/- 5 12/03/14-12/10/14 34 +/-5 34 +/-5 39 +/-5 37 +/-5 38 +/-5 33 +/-5 12/10/14 -12/17/14 25 +/-5 25+/- 5 24 +/-5 19 +/-4 20 +/-4 24+/- 5 12/17/14 -12/24/14 23 +/-5 23 +/-5 22 +/-5 22+/- 5 20 +/-5 19+/- 5 12/24/14 -12/31/14 19 +/-4 18 +/-4 19 +/-4 17 +/-4 18 +/-4 15+/- 4 MEAN 19 +/-11 19 +/-17 18 +/-11 18 +/-12 18 +/-12 18 +/-12 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-10 c-i oPage 72 of 140

Table C-VI.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/-2 SIGMA COLLECTION GROUP II I GROUP III PERIOD CL-1 CL-7 CL-8 CL-11 01/01/14 - 01/08/14 24 +/- 5 2U +/- 4 25 +/- 5 24 +/- 5 01/08/14 -01/15/14 20 +/- 5 20 +/- 5 20 +/- 5 21 +/- 5 01/15/14 -01/22/14 20 +/- 4 20 +/- 4 17 +/- 4 24 +/- 5 01/22/14 - 01/29/14 12 +/- 4 15 +/-4 14 +/- 4 13 +/- 4 01/29/14 -02/05/14 22 +/- 5 23 +/- 5 21 +/-5 24 +/-5 02/05/14 -02/12/14 20 +/- 4 22 +/- 5 20 +/- 4 24 +/- 5 02/12/14 -02/19/14 31 +/- 5 28 +/- 5 27 +/- 5 28 +/- 5 02/19/14 - 02/26/14 19 +/- 5 21 +/- 5 20 +/- 5 19 +/- 5 02/26/14 -03/05/14 27 +/- 5 27 +/- 5 22 +/- 4 31 +/- 5 03/05/14 - 03/12/14 19 +/- 5 19 +/- 5 20 +/- 5 17 +/- 4 03/12/14 - 03/19/14 12 +/- 4 16 +/- 4 16 +/-4 17 +/- 4 03/19/14 - 03/26/14 14 +/- 4 16 +/- 4 20 +/-4 21 +/-4 03/26/14 -04/02/14 13 +/- 4 14 +/-4 12 +/-4 14 +/-4 04/02/14 - 04/09/14 13 +/- 4 11 +/- 4 9 +/-4 10 +/-4 04/09/14 -04/16/14 9 +/- 4 10 +/-4 18 +/-4 18 +/-4 04/16/14 -04/23/14 19 +/- 5 16 +/-4 18 +/-4 18 +/-4 04/23/14 -04/30/14 11 +/-4 7 +/-4 9 +/-4 10 +/-4 04/30/14 - 05/07/14 8 +/- 4 10 +/- 4 12 +/-4 16 +/-4 05/07/14 -05/14/14 15 +/- 4 18 +/- 4 21 +/-4 15 +/-4 05/14/14 - 05/21/14 15 +/- 4 11 +/- 4 20 +/-4 14 +/-4 05/21/14 - 05/28/14 19 +/- 4 14 +/- 4 18 +/-4 16 +/-4 05/28/14 - 06/04/14 17 +/- 4 17 +/- 4 18 +/-4 18 +/-4 06/04/14 - 06/11/14 14 +/- 4 13 +/- 4 13 +/-4 15 +/-4 06/11/14 - 06/18/14 15 +/- 4 18 +/- 4 18 +/- 5 14 +/-4 06/18/14 - 06/25/14 11 +/- 4 13 +/- 4 13 +/-4 14 +/-4 06/25/14 - 07/02/14 13 +/- 4 11 +/- 4 10 +/-4 11 +/-4 07/02/14 - 07/09/14 12 +/- 4 14 +/- 4 14 +/-4 11 +/-4 07/09/14 - 07/16/14 11 +/- 4 13 +/- 4 13 +/-4 14 +/-4 07/16/14 -07/23/14 26 +/- 5 23 +/- 5 24 +/- 5 28 +/- 5 07/23/14 - 07/30/14 12 +/- 4 11 +/- 4 15 +/-4 18 +/-4 07/30/14 -08/06/14 28 +/- 5 25 +/-5 27 +/-5 32 +/- 5 08/06/14 -08/13/14 19 +/- 4 22 +/- 4 25 +/- 5 31 +/- 5 08/13/14 - 08/20/14 22 +/- 5 15 +/- 4 15 +/- 4 24 +/- 5 08/20/14 - 08/27/14 19 +/- 5 16 +/- 4 21 +/- 5 15 +/-4 08/27/14 - 09/03/14 19 +/- 4 13 +/- 4 15 +/- 4 16 +/-4 09/03/14 - 09/10/14 16 +/-4 12 +/-4 16 +/- 4 14 +/-4 09/10/14 - 09/17/14 14 +/- 4 11 +/- 4 14 +/- 4 8 +/-4 09/17/14 -09/24/14 19 +/- 5 18 +/- 4 20 +/-5 23 +/- 5 09/24/14 - 10/01/14 22 +/-4 22 +/- 5 28 +/- 5 25 +/-5 10/01/14 - 10/08/14 12 +/- 4 13 +/- 4 11 +/- 4 14 +/-4 10/08/14 - 10/15/14 16 +/- 4 12 +/- 4 16 +/- 4 9 +/-4 10/15/14 - 10/22/14 12 +/- 4 12 +/- 4 12 +/- 4 14 +/-4 10/22/14 - 10/29/14 20 +/- 5 19 +/- 5 18 +/- 5 17 +/- 5 10/29/14 - 11/05/14 17 +/- 4 15 +/- 4 17 +/- 4 15 +/-4 11/05/14 - 11/12/14 16 +/- 4 13 +/- 4 18 +/- 4 12 +/- 4 11/12/14 - 11/19/14 16 +/- 4 19 +/- 5 17 +/- 5 22 +/- 5 11/19/14 - 11/26/14 20 +/- 4 21 +/- 4 27 +/- 5 26 +/- 5 11/26/14 -12/03/14 24 +/- 5 24 +/- 5 24 +/- 5 26 +/- 5 12/03/14 - 12/10/14 41 +/- 5 32 +/- 5 36 +/- 5 31 +/- 5 12/10/14 - 12/17/14 19 +/- 4 21 +/- 4 23 +/-4 24 +/- 5 12/17/14 - 12/24/14 22 +/- 5 24 +/- 5 24 +/- 5 20 +/- 5 12/24/14 - 12/31/14 19 +/- 4 15 +/-4 20 +/- 4 19 +/- 4 MEAN 18 +/- 12 17 +/- 11 18 +/- 11 19 +/- 13 C-11I Page 73 of 140

Table C-VI.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP I - ON-SITE LOCATIONS GROUP II - INTERMEDIATE DISTANCE LOCATIONS GROUP III - CONTROL LOCATIONS COLLECTION MIN MAX MEAN+/- COLLECTION MIN MAX MEAN+/- COLLECTION MIN MAX MEAN+/-

PERIOD 2SD PERIOD 2SD PERIOD 2SD

-7 01/01/14 - 01/29/14 12 25 20 +/- 8 01/01/14 01/29/14 12 25 19 +/- 8 01/01/14 - 01/29/14 13 24 21 +/- 11 01/29/14 - 02/26/14 16 33 23 +/- 9 01/29/14 02/26/14 19 31 23 +/- 8 01/29/14 - 02/26/14 19 28 24 +/- 7 02/26/14 - 04/02/14 11 33 19 +/- 11 02/26/14 04/02/14 12 27 18 +/- 10 02/26/14 - 04/02/14 14 31 20 +/- 13 04/02/14 - 04/30/14 7 19 13 +/- 7 04/02/14 04/30/14 7 19 12 +/- 8 04/02/14 - 04/30/14 10 18 14 +/- 8 04/30/14 - 06/04/14 7 21 15 +/-7 04/30/14 06/04/14 8 21 15 +/- 7 04/30/14 - 06/04/14 14 18 16 +/- 3 06/04/14 - 07/02/14 9 21 14+/- 6 06/04/14 07/02/14 10 18 13 +/- 5 06/04/14 - 07/02/14 11 15 14 +/- 4 07/02/14 - 07/30/14 10 28 17 11 07/02/14 07/30/14 11 26 16 +/- 11 07/02/14 - 07/30/14 11 28 18 +/- 15 07/30/14 - 09/03/14 14 31 22+/- 8 07/30/14 09/03/14 13 28 20 +/- 9 07/30/14 - 09/03/14 15 32 23 +/- 17 09/03/14 - 10/01/14 9 25 17+/- 9 09/03/14 10/01/14 11 28 17 +/- 10 09/03/14 - 10/01/14 8 25 17 +/- 16 10/01/14 - 10/29/14 11 22 15+/- 6 10/01/14 10/29/14 11 20 14+/- 6 10/01/14 - 10/29/14 9 17 13 +/- 6 10/29/14 - 12/03/14 12 64 21 +/-19 10/29/14 12/03/14 13 27 19+/- 8 10/29/14 - 12/03/14 12 26 20 +/- 13 12/03/14 - 12/31/14 15 39 24 +/-14 12/03/14 12/31/14 15 41 24 +/-16 12/03/14 - 12/31/14 19 31 24 +/- 11 01/01/14 - 12/31/14 7 64 18 13 01/01/14 - 12/31/14 7 41 18 +/-11 01/01/14 - 12/31/14 8 32 19 +/- 13 C)

I"o

.,D

Table C-VI.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Co-60 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 PERIOD CL-1 01/01/14 - 04102114 43 +/- 22 *<32 < 3 <3 < 6 < 3

17 < 2 <2 < 4 < 1 I 04/02/14 - 07/021'14 67 +/- 17 <29 <2 <3 <5 <2 <17 <2 <2 <4 <10 07/02/14 - 10/01/ '14 75 +/- 25 <38 <2 <3 <8 <4 <16 <3 <2 <7 <11 10/01/14 - 12/311'14 37 +/- 21 23 +/- 20 < 2 <3 <5 <3 <21 <2 <2 <5 <10 MEAN 56 +/- 37 -

CL-11 01/01/14 04/02/14 53 +/- 17 < 39 <3 <3 <5 <3 <20 < 2 <2 <5 <11 04/02/14 07/02/14 63 +/- 20 29 +/-24 < 2 <4 <5 <3 <24 < 3 <2 <4 <11 07/02/14 10/01/14 64 +/- 24 < 46 <2 <3 <6 <5 <27 < 3 <2 <7 < 12 10/01/14 12/31/14 48 +/- 17 < 35 <1 <2 <4 <3 <9 <1 <2 <4 <7 MEAN 57 +/- 16 CL-15 01/01/14 04/02/14 59 +/- 19 < 28 <3 <2 <4 <3 <17 <2 <2 <5 < 11 04/02/14 07/02/14 85 +/- 18 < 28 <2 <3 <4 <4 <22 <2 <2 <4 < 12 07/02/14 10/01/14 71 +/- 28 < 47 <2 <3 <5 <4 <24 < 3 <2 <7 < 11 10/01/14 12/31/14 50 +/- 16 < 34 <2 <2 <4 <3 <16 <2 <2 <4 <9 MEAN 66 +/- 30 CL-2 01/01/14 04/02/14 59 +/- 27

38 <3 <3 <5 <3 <25 <2 <2 <5 <13 04/02/14 07/02/14 67 +/- 28 < 45 <3 <3 <6 <3 <21 <3 <2 <4 <11 07/02/14 10/01/14 70 +/- 25 < 37 <3 <4 <6 <4 <19 <3 <2 <7 <11 10/01/14 12/31/14 54 +/- 26 < 53 <4 <5 <8 <6 <32 <3 <4 <8 < 17 MEAN 63 +/- 14 -

CL-3 01/01/14 04/02/14 46 +/- 21 < 27 <2 <3 <5 <3 <16 <2 <2 <4 <9 04/02/14 07/02/14 70 +/- 21

21 <2 <2 <5 <3 <20 <3 <3 <4 <11 07/02/14 10/01/14 79 +/- 27

66 <3 <6 <10 <6 <31 <4 <4 <8 < 14 10/01/14 12/31/14 53 +/- 23 < 47 <3 <3 <7 <4 <27 <3 <2 <6 <11 MEAN 62 +/- 30 CL-4 01/01/14 04/02/14 < 29 < 55 <3 <3 <6 <3

23 <2 <2 <4 10 04/02/14 07/02/14 64 +/- 33 < 57 <4 <4 <8 <4

30 <4 <3 <4 13 07/02/14 10/01/14 60 +/- 25 < 54 <3 <4 <6 <5

21 <2 <3 <6 10 Uh 10/01/14 12/31/14 75 +/- 21 < 37 <2 <3 <6 <3

21 <2 <2 <5 11 0

MEAN 66 +/- 15 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES

Table C-VI.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Co-60 Nb-95 Zr-95 Ru-103 Ru-106 Cs-134 Cs-137 Ce-141 Ce-144 PERIOD CL-6 01/01/14 - 04/02/14 51 +/- 19 < 36 <2 <3 <6 <3 < 20 <2 <2 <5 < 13 04/02/14 - 07/02/14 92 +/- 23 < 40 <3 <3 <6 <3 < 17 <3 <2 <4 <11 07/02/14 - 10/01/14 67 +/- 41 < 53 <4 <6 < 10 <8 < 37 <4 <4 < 12 < 22 10/01/14 - 12/31/14 45 +/- 22 < 63 <4 <5 <8 <5 < 32 <3 <4 <8 < 18 MEAN 64 +/- 42 -

CL-7 01/01/14 - 04/02/14 63 +/- 19 < 28 <2 <3 <4 <3 < 18 <3 <2 <4 < 11 04/02/14 - 07/02/14 60 +/- 20 < 28 <2 <2 <4 <3 < 16 <2 <2 <4 *10 07/02/14 - 10/01/14 63 +/- 24 < 36 <2 <4 <6 <4

21 <2 <2 <6 < 10 10/01/14 - 12/31/14 < 48 < 45 <3 <4 <8 <6 < 28 <4 <3 <8 < 15 MEAN 62 +/- 4 CL-8 01/01/14 - 04/02/14 64 +/- 21 < 32 <2 <4 <6 <3 < 26 <2 <2 <4 < 10 04/02/14 - 07/02/14 93 +/- 29 < 44 <4 <3 <6 <5 < 26 <2 <3 <6 < 16 07/02/14 - 10/01/14 62 +/-17 < 32 <2 <3 <5 <4 < 15 <2 <2 <6 <8 10/01/14 - 12/31/14 49 +/- 16 < 26 <1 <2 <3 <3 < 16 <2 <1 <4 <7 MEAN 67 +/- 37 CL-94 01/01/14 - 04/02/14 44 +/- 22 < 35 <3 <3 <4 <4 < 21 <3 <2 <5 < 10 04/02/14 - 07/02/14 69 +/- 22 < 35 <2 <3 <5 <3 < 24 <3 <2 <5 <11 07/02/14 - 10/01/14 61 +/- 22 < 34 <3 <3 <4 <5 < 14 <2 <2 <6 <9 10/01/14 - 12/31/14 74 +/- 19 < 57 <3 <3 <6 <4 < 24 <3 <2 <5 < 11 MEAN 62 +/- 27

-I 0

0 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES

Table C-VII.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I PERinfl CL-2 CL-3 CL-4 CL-6 CL-15 CL-94 I

01/01/14 -01/08/14 < 28

28 < 27 < 28 < 14

26 01/08/14 -01/15/14 < 56

57 < 56 < 55 < 68

66 01/15/14 -01/22/14 < 62 *<64 < 61 < 63 < 60

32 01/22/14 -01/29/14 < 64

61 < 63 < 63 < 64

66 01/29/14 -02/05/14 < 34

34 *<33 < 34 < 33

33 02/05/14 -02/12/14 < 62

50 < 49 < 50 < 64

66 02/12/14 -02/19/14 < 70

23 < 60 < 59 < 53

52 02/19/14 -02/26/14 < 55

56 < 55 < 56 < 57

55 02/26/14 -03/05/14 < 56

44 < 17 < 44 < 41

41 03/05/14 -03/12/14 < 45 < 44 < 45 < 45 < 61

59 03/12/14 -03/19/14 < 59

58 < 57 < 22 < 60

58 03/19/14 -03/26/14 < 67 *<64 < 66 < 68 < 59

59 03/26/14 -04/02/14 < 61

62 < 60 < 60 < 47 < 48 04/02/14 -04/09/14 < 39

38 < 38 < 39 < 44 < 42 04/09/14 -04/16/14 < 68

68 < 70 < 67 < 49 < 48 04/16/14 -04/23/14 < 39

38 < 39 < 39 < 38

38 04/23/14 -04/30/14 < 28

28 < 29 < 30 < 29

28 04/30/14 -05/07/14 < 37

38 < 36 < 37 < 53

50 05/07/14 -05/14/14 < 33

33 < 32 < 32 < 12

29 05/14/14 -05/21/14 < 65

64 *<65 < 65 < 67

65 05/21/14 -05/28/14 < 42 < 44 < 42 < 42 < 39

37 05/28/14 -06/04/14 < 43 < 44 < 43 < 43 < 44

45 06/04/14 -06/11/14 < 28

27 < 27 < 28 < 26

26 06/11/14 -06/18/14 < 40 < 40 *<33 < 34 < 47 < 47 06/18/14 -06/25/14 < 42

44 *<15 < 41 < 42 < 41 06/25/14 -07/02/14 < 29

29 < 29 < 30 < 30

30 07/02/14 -07/09/14 < 65

65 < 64 < 25 < 64

26 07/09/14 -07/16/14 < 27

27 < 27 < 15 < 27 < 11 07/16/14 -07/23/14 < 69

69 < 69 < 69 < 60

60 07/23/14 -07/30/14 < 46

47 < 46 < 46 < 44

42 07/30/14 -08/06/14 < 29

29 < 29 < 11 < 46 < 47 08/06/14 -08/13/14 < 56

57 < 56 < 22 < 45

19 08/13/14 -08/20/14 < 24 *<24 < 24 < 12 < 19

18 08/20/14 -08/27/14 < 60

61 *<59 < 59 < 68

69 08/27/14 -09/03/14 < 62

63 < 61 < 33 < 17 < 46 09/03/14 -09/10/14 < 42 < 43 < 41 < 16 < 45 < 44 09/10/14 -09/17/14 < 57

56 < 56 < 57 < 56

23 09/17/14 -09/24/14 < 52

52 < 49 < 52 < 57

54 09/24/14 -10/01/14 < 44

44 < 43 < 44 < 34 < 40 10/01/14 -10/08/14 < 55

54 < 52 < 55 < 58

60 10/08/14 -10/15/14 < 23

61 < 58 < 60 < 49

50 10/15/14 -10/22/14 < 37

36 < 37 < 35 < 52

53 10/22/14 -10/29/14 < 63

25 < 64 < 65 < 52

49 10/29/14 -11/05/14 < 38

38 < 36 < 16 < 44 < 45 11/05/14 -11/12/14 < 58

61 < 21 < 56 < 68 < 67 11/12/14 -11/19/14 < 41

41 < 41 < 41 < 30

30 11/19/14 -11/26/14 < 31

30 (1) < 30 < 31 < 30

30 11/26/14 -12/03/14 < 52

51 *<51 < 52 < 50

50 12/03/14 -12/10/14 < 41

41 < 41 < 16 < 40 < 40 12/10/14 -12/17/14 < 61

62 < 61 < 60 < 69 < 66 12/17/14 -12/24/14 < 34 < 34 < 34 < 34 < 18

18 12/24/14 -12/31/14 < 46

43 < 45 < 19 < 52

50 MEAN----

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-15 c-I 5Page 77 of 140

Table C-VII.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/-2 SIGMA COLLECTION GROUP 11 GROUP III PERIOD CL-i CL-7 CL-8 CL-li1 01/01/14 -01/08/14 < 11 < 26 < 26 < 27 01/08/14 -01/15/14 < 33 < 34 < 65 < 64 01/15/14 -01/22/14 < 26 < 60 < 61 < 58 01/22/14 -01/29/14 < 25 < 35 < 65 < 64 01/29/14 -02/05/14 < 13 < 18 < 32 < 33 02/05/14 -02/12/14 < 19 < 27 < 64 < 64 02/12/14 -02/19/14 < 60 < 28 < 51 < 54 02/19/14 -02/26/14 < 22 < 23 < 55 < 57 02/26/14 -03/05/14 < 44 < 17 < 40 < 46 03/05/14 -03/12/14 < 27 < 31 < 61 < 59 03/12/14 -03/19/14 < 58 < 31 < 58 < 57 03/19/14 -03/26/14 < 25 < 24 < 57 < 57 03/26/14 -04/02/14 < 33 < 20 < 49 < 48 04/02/14 -04/09/14 < 15 < 18 < 42 < 42 04/09/14 -04/16/14 < 27 < 48 < 20 < 47 04/16/14 -04/23/14 < 16 < 20 < 38 < 37 04/23/14 -04/30/14 < 11 < 28 < 30 < 12 04/30/14 -05/07/14 < 14 < 22 < 51 < 51 05/07/14 -05/14/14 < 13 < 29 < 29 < 29 05/14/14 -05/21/14 < 24 < 27 < 66 < 63 05/21/14 -05/28/14 < 25 < 22 < 37 < 37 05/28/14 -06/04/14 < 18 < 18 < 45 < 42 06/04/14 -06/11/14 < 12 < 9 < 26 < 26 06/11/14 -06/18/14 < 13 < 19 < 48 < 47 06/18/14 -06/25/14 < 40 < 17 < 42 < 42 06/25/14 -07/02/14 < 12 < 11 < 30 < 30 07/02/14 -07/09/14 < 65 < 62 < 63 < 62 07/09/14 -07/16/14 < 27 < 27 < 27 < 27 07/16/14 -07/23/14 < 29 < 22 < 60 < 60 07/23/14 -07/30/14 < 25 < 16 < 43 < 42 07/30/14 -08/06/14 < 29 < 47 < 25 < 46 08/06/14 -08/13/14 < 56 < 44 < 44 < 44 08/13/14 -08/20/14 < 25 < 18 < 18 < 10 08/20/14 -08/27/14 < 23 < 29 < 69 < 68 08/27/14 -09/03/14 < 62 < 45 < 45 < 45 09/03/14 -09/10/14 < 43 < 24 < 44 < 44 09/10/14 -09/17/14 < 31 < 57 < 58 < 57 09/17/14 -09/24/14 < 20 < 23 < 54 < 55 09/24/14 -10/01/14 < 18 < 12 < 41 < 35 10/01/14 -10/08/14 < 29 < 23 < 59 < 58 10/08/14 -10/15/14 < 58 < 21 < 50 < 50 10/15/14 -10/22/14 < 14 < 22 < 54 < 52 10/22/14 -10/29/14 < 64 < 21 < 49 < 50 10/29/14 -11/05/14 < 36 < 25 < 45 < 45 11/05/14 -11/12/14 < 56 < 29 < 67 < 68 11/12/14 -11/19/14 < 17 < 17 < 31 < 31 11/19/14 -11/26/14 < 31 < 13 < 30 < 30 11/26/14 -12/03/14 < 20 < 21 < 50 < 5i 12/03/14 -12/10/14 < 17 < 41 < 40 < 41 12/10/14 -12/17/14 < 27 < 34 < 67 < 69 12/17/14 -12/24/14 < 13 < 7 < 18 < 18 12/24/14 -12/31/14 < 44 < 51 < 22 < 49 MEAN - - - -

C-16 C-! 6Page 78 of 140

Table C-VIII.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA CONTROL FARM COLLECTION CL-116 PERIOD 01/19/14 < 0.6 02/26/14 < 0.6 03/26/14 < 0.6 04/30/14 < 0.8 05/14/14 < 0.8 05/28/14 < 0.7 06/11/14 < 0.8 06/25/14 < 0.6 07/09/14 < 0.6 07/23/14 < 0.7 08/06/14 < 0.6 08/20/14 < 0.7 09/03/14 < 0.8 09/17/14 < 0.5 10/01/14 < 0.6 10/15/14 < 0.6 10/29/14 < 0.5 11/26/14 < 0.4 12/31/14 < 0.5 MEAN C-17 Page 79 of 140

Table C-VIII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA SITE COLLECTION Be-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 PERIOD CL-1 16 01/19/14 < 49 1177 +/- 121 <4 <5 <14 <6 <9 <6 <9 <4 <5 < 57 < 15 < 36 02/26/14 < 62 1224 +/- 165 <6 <6 <14 <9 < 13 <7 <10 <6 <7 < 29 < 10 < 49 03/26/14 <44 1226 +/- 104 <4 <5 <11 <4 < 12 <5 <8 <5 <5 < 31 <9 <38 04/30/14 < 65 1122 +/- 168 < 8 <7 <20 <9 < 19 <8 <18 <6 <7 < 40 < 12 <48 05/14/14 < 51 1034 +/- 136 < 6 <7 <15 <6 < 15 <7 <11 <6 <7 < 27 <8 <36 05/28/14 < 56 1287 +/- 159 < 6 <6 <12 <7 < 15 <7 <12 <6 <8 < 30 < 10 <47 06/11/14 < 65 1184 +/- 171 < 8 <8 <17 <9 < 20 <8 <14 <7 <8 < 41 < 10 < 57 06/25/14 < 39 1227 +/- 121 < 5 <4 <10 <5 < 12 <5 <8 <4 <5 < 22 <7 <36 07/09/14 < 48 1177 +/- 118 <5 <5 <13 <5 < 13 <5 <8 <5 <6 < 28 <7 <45 07/23/14 < 57 1240 +/- 144 <7 <7 <15 <7 < 16 <7 <12 <6 <7 < 28 < 11 < 37 08/06/14 < 45 1244 +/- 155 <5 <5 <14 <7 < 14 <6 <9 <6 <7 < 32 < 8 <46 08/20/14 < 55 1099 +/- 142 <6 <7 <14 <7 < 13 <7 <11 <6 <7 < 35 <9 <35 09/03/14 < 42 1208 +/- 98 <5 <5 <11 <5 < 10 <5 <9 <4 <5 < 33 < 10 < 39 00 09/17/14 < 69 1266 +/- 179 < 7 <9 <15 <8 < 18 <8 <13 <6 <9 < 38 <10 <44 10/01/14 < 56 1127 +/- 140 < 6 <7 <18 <7 < 14 <7 <11 <5 <6 < 42 < 11 <31 10/15/14 < 43 1242 +/- 107 < 4 <5 <11 <5 < 10 <5 <8 <4 <4 < 39 < 12 < 31 10/29/14 < 60 1273 +/- 192 < 7 <7 <20 < 10 < 20 <8 <14 <7 <7 < 38 < 14 < 53 11/26/14 < 55 1294 +/- 128 < 6 <6 <19 <7 < 16 <7 <12 <6 <6 < 39 < 12 < 31 12/31/14 < 45 1148 +/- 123 < 7 <6 <14 <7 < 15 <6 <12 <6 <6 < 28 <9 <32 MEAN 1200 +/- 139 eIq 0

0.

0-CD

Table C-IX.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Be-7 K-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-144 PERIOD CL-114 06/25/14 Cabbage 344 +/- 134 4166 +/- 514 < 17 < 19 < 37 < 19 < 42 < 19 < 29 < 28 < 15 < 16 < 91 < 29 < 110 06/25/14 Lettuce 498 +/- 157 5928 +/- 540 < 20 < 20 < 40 < 21 < 49 < 24 < 33 < 38 < 22 < 24 < 104 < 27 < 163 06/25/14 Swiss Chard 253 +/- 126 5181 +/- 537 < 20 < 16 < 49 < 22 < 60 < 21 < 41 < 33 < 19 < 24 < 98 < 32 < 105 07/30/14 Cabbage < 152 3581 +/- 393 < 18 < 18 < 42 < 18 < 41 < 19 < 28 < 50 < 14 < 16 < 112 < 38 < 108 07/30/14 Kale < 148 3716 +/- 389 < 14 < 12 < 35 < 15 < 31 < 15 < 29 < 42 < 13 < 14 < 110 < 27 < 89 07/30/14 Swiss Chard 467 +/- 171 6411 +/- 473 < 16 < 18 < 48 < 16 < 40 < 20 < 31 < 47 < 14 < 15 < 115 < 29 < 107 08/27/14 Cabbage 322 +/- 126 4782 +/- 367 < 16 < 17 < 43 < 14 < 37 < 16 < 31 < 48 < 14 < 17 < 100 < 33 < 75 08/27/14 Substituted velvet leaf (1) 751 +/- 187 8465 +/- 395 < 17 < 17 < 38 < 18 < 37 < 19 < 33 < 59 < 17 < 17 < 125 < 31 < 126 08/27/14 Swiss Chard 433 +/- 131 4585 +/- 390 < 14 < 18 < 36 < 14 < 29 < 16 < 28 < 42 < 11 < 15 < 116 < 20 < 94 09/24/14 Kale 205 +/- 131 5373 +/- 330 < 11 < 13 < 32 < 10 < 29 < 13 < 24 < 48 < 11 < 12 < 115 < 30 < 79 09/24/14 Substituted Bean Greens (1) 922 +/- 76 7159 +/- 171 < 6 < 6 < 15 < 5 < 13 <7 < 10 < 31 < 5 < 5 < 54 < 12 < 46 09/24/14 Swisschard 444 +/- 115 5627 +/- 331 < 10 < 11 < 31 < 9 < 29 < 11 < 22 < 57 < 10 < 11 < 93 < 26 < 83 MEAN 464 +/- 443 5415 +/- 2867 CL-115 06/25/14 Cabbage < 284 3307 +/- 466 < 21 < 20 < 42 < 23 < 44 < 19 < 34 < 43 < 21 < 23 < 113 < 32 < 165 06/25/14 Kale < 252 4715 +/- 541 < 27 < 23 < 52 < 22 < 49 < 22 < 40 < 49 < 22 < 22 < 96 < 38 < 198 06/25/14 Lettuce 412 +/- 209 4538 +/- 538 < 19 < 20 < 45 < 26 < 50 < 23 < 43 < 42 < 24 < 26 < 118 < 23 < 164 07/30/14 Cabbage < 183 6378 +/- 512 < 20 < 18 < 47 < 17 < 39 < 21 < 34 < 58 < 16 < 21 < 125 < 39 < 130

'.0 < 17 < 106 < 36 < 102 07/30/14 Kale 318 +/- 199 5562 +/- 521 < 19 < 16 < 36 < 19 < 38 < 15 < 27 < 55 < 14 07/30/14 Lettuce 391 +/- 173 4492 +/- 523 < 15 < 20 < 42 < 16 < 49 < 21 < 37 < 54 < 15 < 22 < 133 < 37 < 102 08/27/14 Kale 462 +/- 85 5710 +/- 203 < 7 < 8 < 19 < 8 < 18 <8 <15 <28 <7 < 8 < 58 < 15 < 46 08/27/14 Swiss Chard 413 +/- 118 5420 +/- 413 < 13 < 17 < 43 < 13 < 32 < 18 < 23 < 54 < 13 < 15 < 110 < 27 < 107 08/27/14 Lettuce 732 +/- 167 6417 +/- 369 < 10 < 11 < 22 < 9 < 22 < 11 < 20 < 42 < 11 < 10 < 81 < 19 < 72 09/24/14 Kale/Nightshade (comp) (1) 1307 +/- 128 5896 +/- 270 < 11 < 12 < 28 < 12 < 27 < 12 < 21 < 37 < 10 < 11 < 79 < 21 < 54 09/24/14 Substituted Bean Greens (1) 1656 +/- 92 4572 +/- 170 < 7 < 9 < 20 < 7 < 18 <8 <15 <43 <7 < 7 < 73 < 16 < 57 09/24/14 Swiss Chard 572 +/- 71 6332 +/- 181 < 6 < 7 < 17 < 6 < 15 <7 < 12 <30 <5 < 6 < 54 < 13 < 40 MEAN 696 +/- 939 5278 +/- 1921 -

G0 (b

00 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-IX.1 CONCENTRATIONS OF GAMMA EMITTERS INVEGETATION SAMPLES COLLECTED INTHE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Be-7 K-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-144 PERIOD CL-1 17 06125/14 Cab bage < 288 3120 +/- 550 < 22 < 20 < 57 < 33 < 66 < 24 < 39

46 < 22 < 27 < 116

25

180 06/25/14 Lett uce 274 +/- 178 3535 +/- 483 < 20 < 23 < 48 < 21 < 56 < 20 < 34 < 37 < 19 < 22 < 94 < 31 < 135 06/25/14 Swis ss Chard 402 +/- 202 7511 +/- 735

30 < 25 < 74

31

71 < 27 < 51 < 43 < 26 < 25 < 130 < 40 < 124 07/30/14 Cab bage 402 +/- 160 3464 +/- 398 < 16 < 18 < 39 < 21 < 37 < 18 < 27 < 57 < 15 < 17 < 122 < 31 < 118 07/30/14 Letti uce 542 +/- 229 4054 +/- 429 <11 < 10

22 < 10 < 26 < 13 < 23 < 50 < 12 < 11 < 80 < 30 < 100 07/30/14 Swis ss Chard 360 +/- 127 5544 +/- 424 <13 < 15 < 38 < 12 < 36 < 14 < 24 < 50 < 13 < 15 < 93 < 23 < 98 08/27/14 Cab bage 341 +/- 157 4584 +/- 295 < 12 < 15 < 32 < 12

28 *15

25

58 < 12 < 14 < 113 < 24 < 185 08/27/14 Swis ss Chard 364 +/- 124 5313 +/- 405 < 14 < 14 < 38 < 15 < 38 < 16 < 27 < 54 < 12 < 14 < 119 < 36 < 93 08/27/14 Kale 659 +/- 93 5554 +/- 235 < 11 < 11 < 29 *12

25 <12

21

38 < 10 < 11

83 < 24 < 48 09/24/14 Kale 551 +/- 80 4001 +/- 152 <6 <7 < 17 <6 < 14 <7 < 12 < 36 <6 <6 < 60 < 16 < 46 09/24/14 Sub!stituted Marigolds (1) 1512 +/- 99 6787 +/- 218 <8 <9 < 21 <8 < 19 <10 < 16

28 <8 <8

61 < 15 < 56 09/24/14 Swis ss Chard 369 +/- 112 6185 +/- 285 < 10 < 10 < 28 < 10 < 24 < 12 < 19 < 51 <8 <9 < 93 < 21 < 73 MEAN 525 +/- 692 4971 +/- 2809 -

CL-118 06/25/14 Cabbage 156 +/- 110 2879 +/- 336 <16 < 16

31 < 15

32 < 16 < 27 < 29 < 15 < 16 < 72 < 22 < 122 06/25/14 Lettuce 512 +/- 167 5979 +/- 506 < 19 < 16 < 41 < 18 < 45 < 19 < 33

36

17

21 < 97 < 21 < 140 06/25/14 Swiss Chard 435 +/- 169 8897 +/- 740 < 20 < 25 < 69 < 25

70 < 26 < 48 < 42 < 20 < 26 < 115 < 32 < 114 n 07/30/14 Cabbage < 173 2725 +/- 374 < 17 < 17 < 45 < 11 < 40 < 19 < 35 < 54

16 <19

117 < 36 < 107 07/30/14 Lettuce 374 +/- 170 5844 +/- 427 < 16 < 18 < 45 < 15 < 35 < 18

32 < 60 < 16 <17

124 < 26 < 110 07/30/14 Swiss Chard 528 +/- 220 8239 +/- 547 < 15

17 < 48 < 14 < 37 < 19 < 28 < 55 < 13 < 14 < 115 < 17 < 107 08/27/14 Cabbage < 136 3296 +/- 353 < 17 < 17 < 36 *17 < 35 *17 < 32 < 59 < 13 *14

120 < 39 < 96 08/27/14 Kale 324 +/- 124 3496 +/- 328 < 16 < 14 < 39 < 13 < 33 < 15 < 23 < 45 <12 < 13 < 101 < 23 < 61 08/27/14 Swiss Chard 347 +/- 134 5114 +/- 413 < 16 < 16 < 41 < 17 < 38 < 20 < 29 < 56 < 15 < 17 < 135

32

122 09/24/14 Cabbage 706 +/- 57 3953 +/- 123 <5 <6 < 14 <5 < 12 <6 < 10 < 25 <5 <5 < 47 < 14 < 32 09/24/14 Kale 569 +/- 82 4615 +/- 153 <6 <6 < 15 <6 < 14 <6 < 11 < 31 <5 <6 < 54 < 16

38 09/24/14 Swiss Chard 409 +/- 107 7161 +/- 372 <9 < 12 < 32 < 11 < 25 < 12 < 21 < 58 <8 < 12 < 90 < 22

83 MEAN 436 +/- 304 5183 +/- 4165 -

-o hiq 0

00 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-IX.2 CONCENTRATIONS OF GAMMA EMITTERS IN GRASS SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Be-7 K-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-144 PERIOD CL-01 05/14/14 891 +/- 351 5305 +/- 613 < 28 < 25 < 57 < 30 < 50 < 28 < 51 < 45 < 27 < 29 < 123 < 32

230 05/28/14 1903 +/- 281 4921 +/- 546 < 25

24 < 56 < 24 < 62 < 27 < 42 < 39 < 20 < 24 < 114 < 38

164 06/11/14 1226 +/- 226 3934 +/- 542 < 25

22 < 55 < 25 < 62 < 25 < 45 < 50 < 24 < 31 < 152 < 33

183 06/25/14 841 +/- 228 5120 +/- 554 < 23

25 < 53 < 27 < 58 < 26 < 48 < 39 < 25 < 26 < 124 < 37

173 07/09/14 756 +/- 265 6482 +/- 599 < 12

16 < 52 < 14 < 38 < 12 < 24 < 46 < 13 < 15 < 118 < 17 <64 07/23/14 2728 +/- 352 5885 +/- 658 < 28

31 < 55 < 24 < 56 < 28 < 45 < 51 < 27 < 29 < 138 < 38

189 08/06/14 734 +/- 175 4972 +/- 507 < 18

22 < 48 < 17 < 39 < 22 < 33 < 42 < 17 < 18 < 122 < 35

90 08/20/14 693 +/- 71 4901 +/- 157 < 5 <7 < 17 < 6 < 13 <7 <11 <41 <5 < 6 < 66 < 17 <34 09/03/14 1559 +/- 180 4255 +/- 317 < 15

16 < 39 < 15 < 38 < 19 < 29 < 49 < 14 < 15 < 118 < 34 < 97 09/17/14 3124 +/- 268 4548 +/- 428 < 14

14 < 42 < 15 < 38 < 18 < 31 < 55 < 13 < 14 < 107 < 34

125 10/01/14 914 +/- 238 6400 +/- 518 < 16

13 < 37 < 12 < 26 < 13 < 25 < 59 < 13 < 13 < 108 < 19

114 10/15/14 3330 +/- 231 3332 +/- 317 < 13 <13 < 34 < 12 < 29 < 17 < 23 < 56 < 13 < 13 < 111 < 34 < 94 10/29/14 3177 +/- 205 6086 +/- 364 < 14

16 < 37 < 14 < 36 < 17 < 27 < 54 < 13 < 15 < 112 < 27

87 MEAN 1683 +/- 2086 5088 +/- 1899 CL-02 05/14/14 2427 +/- 296 6051 +/- 549 < 19

20 < 48 < 20 < 44 < 20 < 38 < 31 < 19 < 21 < 97 < 26

149 05/28/14 1265 +/- 386 4519 +/- 741 < 30 < 37 < 82 < 36 < 72 < 30 < 51 < 47 < 29 < 28 < 151 < 37

161 06/11/14 903 +/- 355 3900 +/- 609 < 34

38 < 75 < 39 < 72 < 34 < 58 < 58 < 30 < 35 < 160 < 42

141 06/25/14 518 +/- 193 6311 +/- 526 < 22

20 < 49 < 21 < 48 < 21 < 38 < 35 < 21 < 23 < 88 < 20

157 07/09/14 2108 +/- 223 4174 +/- 327 < 17

17 <39 < 17 <34 < 18 < 33 < 58 < 16 < 17 < 117 < 35

103 07/23/14 2652 +/- 362 6584 +/- 740 < 31

26 < 70 < 28 < 82 < 29 < 56 < 48 < 28 < 34 < 146 < 37

170 08/06/14 2374 +/- 261 4971 +/-443 < 18 *19 < 39 < 16 < 40 < 21 < 30 < 47 < 17 < 18 < 113 < 36

141 08/20/14 1905 +/- 111 4959 +/- 193 < 7 <8 <22 <7 <17 <8 <15 <50 <6 < 7 < 83 < 25 < 33 09/03/14 3980 +/- 293 6212 +/- 413 < 14 *15 < 37 < 15 < 34 < 16 < 30 < 49 < 14 < 16 < 104 < 25

89 09/17/14 3211 +/- 224 5155 +/- 318 < 11

14 < 34 < 12 < 30 < 16 < 24 < 52 < 13 < 14 < 95 < 22

115 10/01/14 2712 +/- 298 6034 +/-449 < 13 <16 < 34 < 18 < 30 < 17 < 30 < 51 < 14 < 13 < 115 < 26

102 10/15/14 3834 +/- 286 2380 +/- 295 < 15 *15 < 36 < 14 < 29 < 18 < 29 < 57 < 13 < 14 < 120 < 34 < 97 10/29/14 5198 +/- 236 6385 +/- 350 < 13 <15 < 31 < 13 < 31 < 15 < 27 < 54 < 13 < 14 < 103 < 26

106 UQ MEAN 2545 +/- 2603 5203 +/- 2468 00

Table C-IX.2 CONCENTRATIONS OF GAMMA EMITTERS IN GRASS SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Be-7 K-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-144 PERIOD CL-08 05/14/14 406 +/- 241 6892 +/- 620 < 25 < 28 < 55 < 24 < 60 < 24 < 47 < 36 < 25 < 26

133 < 29

182 05/28/14 493 +/- 316 6005 +/- 886 < 34 < 34 < 73 < 27 < 73

36 < 55 < 57 < 30 < 38

158 < 51

201 06/11/14 1148 +/- 318 5597 +/- 623 < 27 < 28

56 < 31 < 62 < 33 < 44 < 55 < 26 < 27 < 117 < 35 < 197 06/25/14 1568 +/- 305 6423 +/- 499 <9 <8 < 19 < 23 < 29 < 10 < 18 < 24 <11 < 13 < 64 <11 < 108 07/09/14 2207 +/- 226 6044 +/- 419 < 16 < 14 < 39

16 < 32 < 19 < 33 < 59 *17 < 15 < 125 < 23 < 125 07/23/14 2378 +/- 327 7579 +/- 701 < 32

28 < 62 < 35 < 58 < 32 < 54

52 < 31 < 31 < 140 < 42 < 206 08/06/14 1933 +/- 252 5612 +/- 478 < 18 < 21 < 53 < 18 < 45 < 23 < 38 < 51 < 20 < 18 < 102 < 37 < 124 08/20/14 371 +/- 70 6190 +/- 177 <7 <8 20 <7 < 17 <8 < 14 < 51 <7 <7 < 81 < 22 < 43 09/03/14 1711 +/- 205 7045 +/- 405 < 16 < 18 39 < 18 < 40 < 19 < 30 < 59 < 15 < 17 < 107 < 24 < 124 09/17/14 2929 +/- 260 5926 +/- 454 < 17 < 20 <44 < 20 < 45 < 20 < 36 < 60 < 15

21 < 128 < 31 < 126 10/01/14 2593 +/- 294 6192 +/- 493 < 14 < 14 < 33 < 16 < 34 < 17 < 25 < 60 < 12 < 16 < 111 < 29 < 98 10/15/14 1878 +/- 229 5212 +/- 389 < 17 < 20 47 < 19 < 45 < 21 < 31 < 58 < 15 < 16 < 125 < 36 < 79 10/29/14 1693 +/- 229 8596 +/- 470 < 16 < 17 < 51 < 18 < 43 < 17 < 31 < 57 < 15 < 17 < 126 < 34 < 102 l.,J MEAN 1639 +/- 1662 6409 +/- 1839 -

CL-116 05/14/14 699 +/- 363 5693 +/- 848

36 < 38 < 83 < 40 < 98 < 37 < 72 < 58 < 38 <41 < 170 < 16 < 177 05/28/14 1144 +/- 241 4129 +/- 524

18 *18 < 51 < 19

29 < 25 k 33 < 39 < 22 < 21 < 93 < 24 < 135 06/11/14 500 +/- 221 4713 +/- 675 < 28 < 27 < 62 < 33

70

26 < 49 < 40 < 27 < 31

121 < 27 < 163 06/25/14 1134 +/- 332 5343 +/- 546 < 28 < 31 < 65 < 30 < 69 < 30 < 56 < 55 < 33 < 31 < 144 < 36 < 250 07/09/14 1938 +/- 200 5948 +/- 374

16 < 17 < 37 < 16

36 < 18

32 < 59 < 15 < 15 < 124 < 36 < 120 07/23/14 1483 +/- 293 6405 +/- 778 < 28 < 29 < 69 < 27

65

24 < 50 < 46

26

28 < 125 < 57 < 163 08/06/14 1067 +/- 200 5173 +/- 499

20 < 22 < 47 < 21 < 53 < 24 < 35 < 56 < 18 < 22 < 121 < 26 < 125 08/20/14 1307 +/- 81 6020 +/- 171 <7 <9 < 21 <7 < 17 <8 < 15 < 55 <7 <7 < 88 < 20 < 56 09/03/14 1222 +/- 157 4400 +/- 339 < 14

14 < 38 < 13

36

16 < 28 < 45 <13 < 14 < 103 < 29 < 72 09/17/14 3059 +/- 282 4754 +/- 461 < 18

19 < 46 < 18 < 37 < 21 < 31 < 59 < 17 < 16 < 100 < 38 < 118 10/01/14 1398 +/- 276 6425 +/- 587 < 16 < 21 < 46 < 16 < 31 < 16 < 26 <54 < 14 < 16 < 104 < 28 < 93 10/15/14 2597 +/- 222 4382 +/- 419 < 15 < 15 < 42 < 16 < 33 < 17 < 33 < 60 < 14 < 16 < 123 < 36 < 106 10/29/14 4173 +/- 209 5901 +/- 302 < 12 < 13 < 30 < 14 < 27 < 14 < 24 < 48

12 *13 < 95

26 < 88

~0 CD MEAN 1671 +/- 2066 5330 +/- 1593 00 0

0

Table C-X.1 QUARTERLY DLR RESULTS FOR CLINTON POWER STATION, 2014 RESULTS IN UNITS OF MILLIREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN-MAR APR-JUN JUL-SEP OCT-DEC CODE +/-23D-CL-01 22.0 + 1.7 21.2 21.5 22.2 23.1 CL-02 2237 + 1.5 22.1 22.3 22.5 23.8 CL-03 21.8 + 2.7 20.9 20.9 21.7 23.8 CL-04 21t8 + 1.9 20.8 22.0 21.4 23.0 CL-05 23.0 + 3.5 21.3 23.2 22.0 25.3 CL-06 19.7 +/- 2.0 18.3 19.9 19.9 20.7 CL-07 21.0 +/- 2.4 20.0 20.7 20.5 22.7 CL-08 21.9 + 2.9 20.1 21.8 22.0 23.6 CL-11 21.0 + 0.8 20.6 20.7 21.0 21.5 CL-15 20.0 + 2.1 19.0 19.4 20.2 21.4 CL-22 23.1 +/- 3.0 21.8 23.1 22.4 25.2 CL-23 24.4 +/- 3.3 22.7 23.2 25.7 25.9 CL-24 23.8 +/- 2.0 22.4 23.8 24.1 24.8 CL-33 22.7 + 2.4 21.5 22.7 22.2 24.3 CL-34 23.0 +/- 2.6 21.3 23.2 23.0 24.5 CL-35 21.4 +/- 2.9 19.9 21.1 21.0 23.4 CL-36 21.9 +/- 3.2 20.1 21.8 21.6 24.0 CL-37 21.1 + 4.1 18.4 21.7 21.0 23.3 CL-41 23.6 +/- 3.7 21.4 23.3 23.7 25.9 CL-42 22.1 +/- 3.9 19.6 22.8 21.8 24.2 CL-43 23.7 +/- 2.1 22.8 23.3 23.5 25.2 CL-44 22.4 +/- 4.4 19.9 22.2 22.0 25.3 CL-45 22.8 +/- 5.6 19.4 22.6 23.0 26.2 CL-46 23.1 +/- 3.6 20.5 23.5 23.9 24.5 CL-47 23.2 +/- 4.3 20.4 23.4 23.2 25.7 CL-48 21.5 +/- 5.8 17.3 22.1 22.4 24.1 CL-49 23.1 +/- 3.7 20.6 24.1 22.7 24.8 CL-51 24.1 +/- 3.0 22.8 24.0 23.3 26.2 CL-52 24.0 +/- 5.0 22.0 23.3 (1) 26.8 CL-53 20.8 +/- 1.8 20.0 21.3 20.0 21.8 CL-54 22.9 +/- 5.0 19.9 23.0 22.8 26.0 CL-55 23.1 +/- 3.7 20.6 25.0 23.0 23.7 CL-56 23.6 +/- 3.4 21.1 24.1 24.3 24.8 CL-57 23.6 +/- 2.1 22.4 24.0 23.0 24.8 CL-58 22.9 +/- 4.5 21.2 23.1 21.3 26.0 CL-60 22.7 +/- 2.4 22.3 23.0 21.4 24.2 CL-61 23.2 +/- 2.9 21.7 23.8 22.4 24.9 CL-63 20.2 +/- 3.6 18.1 20.3 19.8 22.5 CL-64 22.8 +/- 1.6 23.3 21.9 22.3 23.6 CL-65 23.9 +/- 3.9 21.9 23.1 24.2 26.5 CL-74 20.7 +/- 1.8 20.0 20.6 20.2 22.0 CL-75 22.5 +/- 4.3 20.1 22.0 22.4 25.3 CL-76 22.8 +/- 4.9 19.9 24.2 21.7 25.4 CL-77 21.1 +/- 2.7 19.3 22.1 20.7 22.1 CL-78 21.5 +/- 3.0 20.2 21.2 20.9 23.6 CL-79 22.5 +/- 4.2 20.2 22.0 22.4 25.3 CL-80 22.5 +/- 4.0 19.8 23.6 22.4 24.3 CL-81 23.0 +/- 2.4 21.6 22.9 22.8 24.5 CL-84 22.5 +/- 4.9 19.7 22.6 22.0 25.6 CL-90 19.2 +/- 2.6 18.5 18.6 18.6 21.2 CL-91 21.3 +/- 1.6 20.6 20.7 21.9 22.1 CL-97 23.1 +/- 2.8 22.0 23.1 22.1 25.0 CL-99 18.2 +/- 2.2 17.6 17.7 17.5 19.8 CL-114 21.5 +/- 3.1 20.5 21.1 20.7 23.8 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-23 Page 85 of 140

TABLE C-X.2 MEAN QUARTLY DLR RESULTS FOR THE INNER RING, OUTER RING, SPECIAL INTEREST, SUPPLEMENTAL AND CONTROL LOCATIONS FOR CLINTON POWER STATION, 2014 RESULTS IN UNITS OF MILLIREM/QUARTER +/- 2 STANDARD DEVIATIONS OF THE STATION DATA COLLECTION INNER RING OUTER RING SPECIAL INTEREST SUPPLEMENTAL CONTROL PERIOD + 2 S.D.

JAN-MAR 20.5 +/- 3.1 20.9 +/- 2.2 20.8 +/- 3.1 20.1 +/- 2.7 20.6 +/- 0.0 APR-JUN 22.6 +/- 2.0 23.2 +/- 2.1 22.4 +/- 2.4 21.0 +/- 3.2 20.7 +/- 0.0 JUL-SEP 22.6 +/- 2.7 22.2 +/- 2.3 22.4 +/- 2.8 20.9 +/- 3.0 21.0 +/- 0.0 OCT-DEC 24.6 +/- 2.1 24.7 +/- 2.8 24.5 +/- 3.2 22.9 +/- 3.4 21.5 +/- 0.0 TABLE C-X.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR CLINTON POWER STATION, 2014 RESULTS IN UNITS OF MILLIREM/QUARTER +/- 2 STANDARD DEVIATION LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN PRE-OP MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D. + 2 S.D., ALL LOCATIONS INNER RING 64 17.3 26.2 22.6 +/- 3.8 OUTER RING 63 19.3 26.8 22.7 +/- 3.6 18.0 +/- 2.4 SPECIAL INTEREST 28 18.4 26.5 22.5 +/- 3.8 SUPPLEMENTAL 56 17.5 25.6 21.2 +/- 3.6 CONTROL 4 20.6 21.5 21.0 +/- 0.8 INNER 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-63 OUTER 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-81 SPECIAL INTEREST STATIONS - CL-37, CL-41, CL-49, CL-64, CL-65, CL-74, CL-75 SUPPLEMENTAL 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-99 CONTROl STATION - CL-11 C-24 Page 86 of 140

FIGURE C-1 MEAN MONTHLY GROSS BETA CONCENTRATION IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF CPS, 2014 0.052 0.047 0.042 0.037 0 0.032 C., 0.027 I- S 0.022

< 0.017 0.012 0.007 0.002 MONTH PRE-OP (ALL SITES)

--- 2014 INDICATOR

--- 2014 CONTROL C-25 Page 87 of 140

FIGURE C-2 MEAN QUARTERLY AMBIENT GAMMA RADIATION LEVELS (DLR) IN THE VICINITY OF CPS, 2014 50 45 40 35 E

1 30 E

25 20 15 10 QUARTER mEPRE-OP D32014 Indicator U 2014 control C-26 Page 88 of 140

APPENDIX D INTER-LABORATORY COMPARISON PROGRAM Page 89 of 140

Intentionally left blank Page 90 of 140

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE 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 E10854 Milk Sr-89 pCi/L 95.1 91.7 1.04 A Sr-90 pCi/L 10.9 15.1 0.72 W E10855 Milk 1-131 pCi/L 96.6 98.5 0.98 A Ce-141 pCi/L 112 119 0.94 A Cr-51 pCi/L 449 491 0.91 A Cs-134 pCi/L 186 210 0.89 A Cs-1 37 pCi/L 250 253 0.99 A Co-58 pCi/L 248 268 0.93 A Mn-54 pCi/L 292 297 0.98 A Fe-59 pCi/L 230 219 1.05 A Zn-65 pCi/L 312 323 0.97 A Co-60 pCi/L 321 337 0.95 A E10857 AP Ce-141 pCi 53.0 53.9 0.98 A Cr-51 pCi 232 223 1.04 A Cs-1 34 pCi 100 95.3 1.05 A Cs-1 37 pCi 122 115 1.06 A Co-58 pCi 122 121 1.01 A Mn-54 pCi 135 135 1.00 A Fe-59 pCi 111 99.3 1.12 A Zn-65 pCi 140 147 0.95 A Co-60 pCi 187 153 1.22 W E10856 Charcoal 1-131 pCi 74.1 76.4 0.97 A E10858 Water Fe-55 pCi/L 2090 1760 1.19 A June 2014 E10913 Milk Sr-89 pCi/L 85.9 91.3 0.94 A Sr-90 pCi/L 13.8 14.5 0.95 A E10914 Milk 1-131 pCi/L 86.5 90.9 0.95 A Ce-141 pCi/L 111 124 0.90 A Cr-51 pCi/L 255 253 1.01 A Cs-1 34 pCi/L 147 162 0.91 A Cs-1 37 pCi/L 123 120 1.03 A Co-58 pCi/L 105 112 0.94 A Mn-54 pCi/L 155 156 0.99 A Fe-59 pCi/L 106 102 1.04 A Zn-65 pCi/L 251 252 1.00 A Co-60 pCi/L 218 224 0.97 A E10916 AP Ce-141 pCi 95.1 92.6 1.03 A Cr-51 pCi 215 190 1.13 A Cs-134 pCi 122 122 1.00 A Cs-137 pCi 95.1 89.8 1.06 A Co-58 pCi 88.7 84.1 1.05 A Mn-54 pCi 115 116 0.99 A Fe-59 pCi 72.6 76.7 0.95 A Zn-65 pCi 193 189 1.02 A Co-60 pCi 179 168 1.07 A E10915 Charcoal 1-131 pCi 85.6 85.2 1.00 A E10917 Water Fe-55 pCi/L 1680 1810 0.93 A D-1 Page 91 of 140

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2014 (PAGE 2 OF 3)

I Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a) Value (b) TBE/Analytics Evaluation (d)

September2014 E10946 Milk Sr-89 pCi/L 90.7 96.9 0.94 Sr-90 pCi/L 14.0 16.4 0.85 E10947 Milk 1-131 pCi/L 92.0 97.6 0.94 Ce-141 pCi/L 117 126 0.93 Cr-51 pCi/L 281 288 0.98 Cs-1 34 pCi/L 141 158 0.89 Cs-1 37 pCi/L 186 193 0.96 Co-58 pCi/L 137 143 0.96 Mn-54 pCi/L 138 142 0.97 Fe-59 pCi/L 162 158 1.03 Zn-65 pCi/L 75.2 73.0 1.03 Co-60 pCi/L 286 297 0.96 E10949 AP Ce-141 pCi 97.8 82.1 1.19 Cr-51 pCi 212 188 1.13 Cs-1 34 pCi 106 103 1.03 Cs-137 pCi 131 126 1.04 Co-58 pCi 85.7 93.0 0.92 Mn-54 pCi 92.8 92.3 1.01 Fe-59 pCi 113 103 1.10 Zn-65 pCi 53.2 47.5 1.12 Co-60 pCi 202 193 1.05 E10948 Charcoal 1-131 pCi 83.9 89.8 0.93 E10950 Water Fe-55 pCi/L 2010 1720 1.17 A E10951 Soil Ce-141 pCi/g 0.208 0.186 1.12 A Cr-51 pCi/g 0.398 0.425 0.94 A Cs-1 34 pCi/g 0.216 0.233 0.93 A Cs-1 37 pCi/g 0.398 0.365 1.09 A Co-58 pCi/g 0.197 0.211 0.93 A Mn-54 pCi/g 0.242 0.209 1.16 A Fe-59 pCi/g 0.238 0.233 1.02 A Zn-65 pCi/g 0.117 0.108 1.08 A Co-60 pCi/g 0.447 0.438 1.02 A December2014 E11078 Milk Sr-89 pCi/L 85.7 95.7 0.90 A Sr-90 pCi/L 12.9 15.6 0.83 A El1079 Milk 1-131 pCi/L 85.9 95.1 0.90 A Ce-141 pCi/L 205 219 0.94 A Cr-51 pCi/L 402 406 0.99 A Cs-134 pCi/L 156 164 0.95 A Cs-137 pCi/L 194 198 0.98 A Co-58 pCi/L 122 130 0.94 A Mn-54 pCi/L 220 225 0.98 A Fe-59 pCi/L 183 175 1.05 A Zn-65 pCi/L 287 297 0.97 A Co-60 pCi/L 224 235 0.95 A D-2 Page 92 of 140

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE 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 E11081 AP Ce-141 pCi 96.4 102 0.95 A Cr-51 pCi 171 190 0.90 A Cs-1 34 pCi 73.1 76.9 0.95 A Cs-1 37 pCi 99.0 92.6 1.07 A Co-58 pCi 57.5 60.8 0.95 A Mn-54 pCi 107 105 1.02 A Fe-59 pCi 74.2 81.6 0.91 A Zn-65 pCi 144 139 1.04 A Co-60 pCi 114 110 1.04 A E11080 Charcoal 1-131 pCi 93.5 98.2 0.95 A E11082 Water Fe-55 pCi/L 1760 1970 0.89 A (a) Teledyne Brown Engineeringreported result.

(b) The Analytics known value is equal to 100% of the parameterpresent in the standardas determined by gravimetric and/or volumetric measurementsmade during standardpreparation.

(c) Ratio of Teledyne Brown Engineering to Analytics results.

(d) Analytics evaluationbased on TBE internal QC limits: A= Acceptable, reported result falls within ratio limits of 0.80-1.20.

W-Acceptable with warning, reportedresult falls within 0. 70-0.80 or 1.20-1.30. N = Not Acceptable, reported result falls outside the ratio limits of < 0. 70 and > 1.30.

D-3 Page 93 of 140

TABLE D-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE 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 2014 RAD-97 Water Sr-89 pCi/L 38.25 36.7 27.5 - 43.6 A Sr-90 pCi/L 24.65 26.5 19.2 - 30.9 A Ba-1 33 pCi/L 89.1 87.9 74.0- 96.7 A Cs-1 34 pCi/L 45.55 44.3 35.5 -48.7 A Cs-137 pCi/L 91.15 89.1 80.2- 101 A Co-60 pCi/L 65.10 64.2 57.8-73.1 A Zn-65 pCi/L 244 235 212-275 A Gr-A pCi/L 45.65 61.0 31.9-75.8 A Gr-B pCi/L 27.95 33.0 21.4 -40.7 A 1-131 pCi/L 23.75 25.7 21.3-30.3 A U-Nat pCi/L 9.61 10.2 7.95- 11.8 A H-3 pCi/L 8435 8770 7610-9650 A MRAD-20 Filter Gr-A pCi/filter 28.0 46.0 15.4-71.4 A November 2014 RAD-99 Water Sr-89 pCi/L 30.4 31.4 22.8-38.1 A Sr-90 pCi/L 18.6 21.8 15.6-25.7 A Ba-133 pCi/L 46.8 49.1 40.3 - 54.5 A Cs-134 pCi/L 88.0 89.8 73.7 - 98.8 A Cs-137 pCi/L 99.0 98.8 88.9-111 A Co-60 pCi/L 92.5 92.1 82.9- 104 A Zn-65 pCi/L 325 310 279 - 362 A Gr-A pCi/L 29.9 37.6 19.4-48.1 A Gr-B pCi/L 27.5 27.4 17.3 - 35.3 A 1-131 pCi/L 15.8 20.3 16.8 - 24.4 N (1)

U-Nat pCi/L 5.74 5.80 4.34 - 6.96 A H-3 pCi/L 6255 6880 5940 - 7570 A MRAD-21 Filter Gr-A pCi/filter 27.3 36.9 12.4 - 57.3 A (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 as acceptabIle with warning. A rerun was not possible due to /-131 decay. All ERA Iodine-131 evaluations since 2004 have been acceptable. NCR 14-08 (a) Teledyne Brown Engineeringreported result.

(b) The ERA known value is equal to 100% of the parameterpresent in the standardas determinedby gravimetric and/or volumetric measurements made during standardpreparation.

(c) ERA evaluation: A=acceptable. Reported result falls within the Warning Limits. NA=not acceptable. Reported result falls outside of the Control Limits. CE=checkfor Error Reported result falls within the Control Limits and outside of the Warning Limit.

D-4 Page 94 of 140

TABLE D-3 DOE'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-241 Bq/L 0.764 0.720 0.504 - 0.936 A Cs-1 34 Bq/L 20.7 23.1 16.2-300 A Cs-137 Bq/L 28.0 28.9 20.2 - 37.6 A Co-57 Bq/L 26.5 27.5 19.3 - 35.8 A Co-60 Bq/L 15.6 16.0 11.2-20.8 A H-3** Bq/L NR 321 225-417 N (3)

Mn-54 Bq/L 13.5 13.9 9.7- 18.1 A Ni-63 Bq/L NR 34.0 23.8-44.2 N (3)

Pu-238 Bq/L 0.911 0.828 0.580 - 1.076 Pu-239/240 Bq/L 0.751 0.676 0.473 - 0.879 K-40 Bq/L NR (1) N (3)

Sr-90** Bq/L NR 8.51 5.96- 11.06 N (3)

U-234/233** Bq/L NR 0.225 0.158 - 0.293 N (3)

U-238** Bq/L NR 1.45 1.02- 1.89 N (3)

Zn-65 Bq/L -0.201 (1) A 14-MaS30 Soil Cs-134 Bq/kg 2.02 (1) A Cs-137 Bq/kg 1300 1238 867- 1609 A Co-57 Bq/kg 1069 966 676- 1256 A Co-60 Bq/kg 1.32 1.22 (2) A Mn-54 Bq/kg 1510 1430 1001 - 1859 A K-40 Bq/kg 669 622 435 - 809 A Sr-90 Bq/kg 4.14 (1) A Zn-65 Bq/kg 763 695 487 - 904 A 14-RdF30 AP Cs-134** Bq/sample NR 1.91 1.34-2.48 N (3)

Cs-137** Bq/sample NR 1.76 1.23-2.29 N (3)

Co-57** Bq/sample NR (1) N (3)

Co-60* Bq/sample NR 1.39 0.97-1.81 N (3)

Mn-54** Bq/sample NR (1) N (3)

Sr-90 Bq/sample 0.8220 1.18 0.83-1.53 N (3)

Zn-65** Bq/sample NR (1) N (3) 14-GrF30 AP Gr-A Bq/sample 0.606 1.77 0.53- 3.01 A Gr-B Bq/sample 0.7507 0.77 0.39- 1.16 A 14-RdV30 Vegetation Cs-1 34 Bq/sample 5.96 6.04 4.23 - 7.85 A Cs-137 Bq/sample 5.06 4.74 3.32-6.16 A Co-57 Bq/sample 11.8 10.1 7.1 -13.1 A Co-60 Bq/sample 7.34 6.93 4.85- 9.01 A Mn-54 Bq/sample 8.95 8.62 6.03-11.21 A Sr-90 Bq/sample 1.23 1.46 1.02- 1.90 A Zn-65 Bq/sample 8.91 7.86 5.50-10.22 A D-5 Page 95 of 140

TABLE D-3 DOE'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-MaW31 Water Am-241 Bq/L 0.705 0.88 0.62- 1.14 A Cs-134*** Bq/L NR (1) N (4)

Cs-1 37*** Bq/L NR 18.4 12.9-23.9 N (4)

Co-57*** Bq/L NR 24.7 17.3 -32.1 N (4)

Co-60*** Bq/L NR 12.4 8.7- 16.1 N (4)

Mn-54*** Bq/L NR 14.0 9.8- 18.2 N (4)

Ni-63 Bq/L 24.07 24.6 17.2 - 32.0 A Pu-238 Bq/L 0.591 0.618 0.433 - 0.803 A Pu-239/240 Bq/L 0.0153 0.0048 (2) A K-40*** Bq/L NR 161 113-209 N (4)

Zn-65*** Bq/L NR 10.9 7.6- 14.2 N (4) 14-MaS31 Soil Cs- 134*** Bq/kg NR 622 435-809 N (4)

Cs-137*** Bq/kg NR (1) N (4)

Co-57*** Bq/kg NR 1116 781-1451 N (4)

Co-60*** Bq/kg NR 779 545-1013 N (4)

Mn-54*** Bq/kg NR 1009 706-1312 N (4)

K-40*** Bq/kg NR 824 577-1071 N (4)

Sr-90 Bq/kg 694 858 601-1115 A

-7 , In11 LnI-UJ r.***

Oql/I1y ir% Q, I 379-703 N (4) 14-RdF 1 AP Sr-90 Bq/sample 0.310 0.703 0.492 - 0.914 N (4) 14-GrF31 AP Gr-A tqisample u.153 u.53 u..1- u.su N (4)

Gr-B Bq/sample 0.977 1.06 0.53- 1.59 A September 2014 14-RdV31 Vegetation Cs-1 34 Bq/sample 7.31 7.38 5.17-9.59 A Cs-137 Bq/sample 8.93 8.14 5.70- 10.58 A Co-57 Bq/sample 10.8 9.2 6.4- 12.0 A Co-60 Bq/sample 6.31 6.11 4.28 - 7.94 A Mn-54 Bq/sample 7.76 7.10 4.97 - 9.23 A Sr-90 Bq/sample 0.738 0.85 0.60-1.11 A Zn-65 Bq/sample 7.16 6.42 4.49 - 8.35 A The 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 14-04 Water, the non-detected K-40 was overlooked when reporting,but would have passedthe false positive test. NCR 14-04 AP, Sr-90 rerun was within the low range of the acceptqance criteria. The originaland rerun results were statisticallythe same. No cause could be identified for the slightly low Sr-90 activity. NCR 14-04 For non reported (NR) analyses, MAPEPevaluates 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 fuming HNO 3 separationwould be required to remove the excess calcium. NCR 14-09 AP, Gr-Alpha was counted on the wrong side. When flipped over and recounted the results were acceptable. NCR 14-09 Fornon reported (NR) analyses, MAPEP evaluates as failed if they were reported in the previous series. NCR 14-09 (a) Teledyne Brown Engineeringreported result.

(b) The MAPEP known value is equal to 100% of the parameterpresent in the standardas determined by gravimetric and/or volumetric measurementsmade during standardpreparation.

(c) DO_/MAPEP evaluation: A=acceptable, W=acceptable with warning, N=not acceptable.

D-6 Page 96 of 140

TABLE D-4 ERA (a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAMa ENVIRONMENTAL, INC., 2014 (Page 1 of 1)

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1 384 04/07/14 Sr-89 40.29 +/- 5.76 36.70 27.50 43.60 Pass ERW-1384 04/07/14 Sr-90 24.08 +/- 2.35 26.50 19.20 30.90 Pass ERW-1385 04/07/14 Ba-133 78.23 +/- 3.93 87.90 74.00 96.70 Pass ERW-1385 04/07/14 Co-60 62.75 +/- 3.53 64.20 57.80 73.10 Pass ERW-1 385 04/07/14 Cs-134 44.97 +/- 3.99 44.30 35.50 48.70 Pass ERW-1 385 04/07/14 Cs-1 37 88.54 +/- 4.93 89.10 80.20 101.00 Pass ERW-1385 04/07/14 Zn-65 249.1 +/- 10.44 235.0 212.0 275.0 Pass ERW-1388 04/07/14 Gr. Alpha 56.70 +/- 2.47 61.00 31.90 75.80 Pass ERW-1388 04/07/14 Gr. Beta 32.10 +/- 1.20 33.00 21.40 40.70 Pass ERW-1 391 04/07/14 1-131 25.52 +/- 1.12 25.70 21.30 30.30 Pass ERW-1 394 04/07/14 Uranium 10.76 +/- 0.74 10.20 7.95 11.80 Pass ERW-1 397 04/07/14 H-3 8982 +/- 279 8770 7610 9650 Pass ERW-5382 10/06/14 Sr-89 29.40 +/- 5.32 31.40 22.80 38.10 Pass ERW-5382 10/06/14 Sr-90 19.19 +/- 1.85 21.80 15.60 25.70 Pass ERW-5385 10/06/14 Ba-1 33 43.54 +/- 4.54 49.10 40.30 54.50 Pass ERW-5385 10/06/14 Cs-134 81.95 +/- 7.49 89.80 73.70 98.80 Pass ERW-5385 10/06/14 Cs-137 95.76 +/- 5.50 98.80 88.90 111.00 Pass ERW-5385 10/06/14 Co-60 90.25 +/- 2.77 92.10 82.90 104.00 Pass ERW-5385 10/06/14 Zn-65 327.4 +/- 23.3 310.00 279.0 362.0 Pass ERW-5388 10/06/14 Gr. Alpha 30.88 +/- 8.05 37.60 19.40 46.10 Pass ERW-5388 10/06/14 G. Beta 20.47 +/- 4.75 27.40 17.30 35.30 Pass ERW-5392 10/06/14 1-131 19.58 +/- 2.35 20.30 16.80 24.40 Pass ERW-5394 10/06/14 Uranium 5.51 +/- 0.37 5.80 4.34 6.96 Pass ERW-5397 10/06/14 H-3 6876 +/- 383 6880 5940 7570 Pass a 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 limits as provided by ERA.

D-7 Page 97 of 140

TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

ENVIRONMENTAL, INC., 2014 (Page 1 of 2)

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-1140 02101114 Gr. Alpha 0.77 +/- 0.06 0.85 0.26 - 1.44 Pass MAW-1140 02/01/14 Gr. Beta 4.31 +/- 0.08 4.19 2.10 - 6.29 Pass MAW-1 184 02/01/14 Fe-55 0.40 +/- 3.20 0.00 -0.01 - 2.00 Pass MAW-1184 02/01/14 H-3 345.10 +/- 10.60 321.00 225.00 - 417.00 Pass MAW-1 184 02/01/14 Ni-63 32.40 +/- 3.20 34.00 23.80 - 44.20 Pass MAW-I 184 02/01/14 Pu-238 1.28 +/- 0.12 0.83 0.58 - 1.08 Fail (1)

MAW-1184 02/01/14 Pu-239/240 0.91 +/- 0.10 0.68 0.47 - 0.88 Fail (1)

MAW-1184 02/01/14 Sr-90 7.00 +/- 0.70 8.51 5.96 - 11.06 Pass MAW-1184 02/01/14 U-233/234 0.20 +/- 0.07 0.23 0.16 - 0.29 Pass MAW-i 184 02/01/14 U-238 1.25 +/- 0.18 1.45 1.02 - 1.89 Pass MAW-1184 02/01/14 Co-57 27.86 +/- 0.38 27.50 19.30 - 35.80 Pass MAW-1184 02/01/14 Co-60 15.99 +/- 0.27 16.00 11.20 - 20.80 Pass MAW-1184 02/01/14 Cs-1 34 21.85 +/- 0.54 23.10 16.20 - 30.00 Pass MAW-1184 02/01/14 Cs-137 28.74 +/- 0.49 28.90 20.20 - 37.60 Pass MAW-1184 02/01/14 K-40 1.80 +/- 2.00 0.00 0.00 - 10.00 Pass MAW-1184 02/01/14 Mn-54 14.06 +/- 0.40 13.90 9.70 - 18.10 Pass MAW-1184 02/01/14 Zn-65 0.00 +/- 0.19 0.00 -0.01 - 0.00 Pass MAVE-1 148 02/01/14 Co-57 11.63 +/- 0.19 10.10 7.10 - 13.10 Pass MAVE-1 148 02/01/14 Co-60 7.28 +/- 0.18 6.93 4.85 - 9.01 Pass MAVE-1 148 02/01/14 Cs-134 6.29 +/- 0.29 6.04 4.23 - 7.85 Pass MAVE-1 148 02/01/14 Cs-1 37 5.18 +/- 0.20 4.74 3.32 - 6.16 Pass MAVE-1 148 02/01/14 Mn-54 9.22 +/- 0.26 8.62 6.03 - 11.21 Pass MAVE-1 148 02/01/14 Zn-65 8.59 +/- 0.40 7.86 5.50 - 10.22 Pass MAAP-1 151 02/01/14 Co-57 1.60 +/- 0.05 0.00 NA Fail (2)

MAAP-1 151 02/01/14 Co-60 1.38 +/- 0.08 1.39 0.97 - 1.81 Pass MAAP-1 151 02/01/14 Cs-1 34 1.75 +/- 0.11 1.91 1.34 - 2.48 Pass MAAP-1 151 02/01/14 Cs-1 37 1.81 +/- 0.10 1.76 1.23 - 2.29 Pass MAAP-1 151 02/01/14 Mn-54 0.01 +/- 0.03 0.00 NA Pass MAAP-1 151 02/01/14 Zn-65 -0.24 +/- 0.09 0.00 -0.50 - 1.00 Pass MAAP-1 151 02/01/14 Sr-90 1.11 +/- 0.14 1.18 0.83 - 1.53 Pass MAAP-1 154 02/01/14 Gr. Alpha 0.56 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-1154 02/01/14 Gr. Beta 0.98 +/- 0.06 0.77 0.39 - 1.16 Pass MASO-1 146 02/01/14 Ni-63 4.80 +/- 15.30 0.00 NA Pass MASO-1 146 02/01/14 Co-57 1064.50 +/- 3.60 966.00 676.00 - 1256.00 Pass MASO-1 146 02/01/14 Co-60 1.70 +/- 0.50 1.22 (3) Pass MASO-1 146 02/01/14 Cs-134 6.10 +/- 1.80 0.00 NA Fail (4)

MASO-1 146 02/01/14 Cs-1 37 1364.30 +/- 5.30 1238.00 867.00 - 1609.00 Pass MASO-1 146 02/01/14 K-40 728.90 +/- 15.90 622.00 435.00 - 809.00 Pass MASO-1 146 02/01/14 Mn-54 1588.00 +/- 6.00 1430.00 1001.00 - 1859.00 Pass MASO-1 146 02/01/14 Zn-65 763.50 +/- 6.80 695.00 487.00 - 904.00 Pass MASO-1 146 02/01/14 Sr-90 1.23 +/- 1.37 0.00 NA Pass D-8 Page 98 of 140

TABLE D-5 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

ENVIRONMENTAL, INC., 2014 (Page 2 of 2)

Concentration a Known Control Lab 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 Pass MASO-4439 08/01/14 Sr-90 778.34 +/- 17.82 858.00 601.00 - 1115.00 Pass MASO-4439 08/01/14 Cs-134 520.60 +/- 7.09 622.00 435.00 - 809.00 Pass MASO-4439 08/01/14 Co-57 1135.00 +/- 7.40 1116.00 781.00 - 1451.00 Pass MASO-4439 08/01/14 Co-60 768.20 +/- 7.70 779.00 545.00 - 1013.00 Pass MASO-4439 08/01/14 Mn-54 1050.70 +/- 12.60 1009.00 706.00 - 1312.00 Pass MASO-4439 08/01/14 Zn-65 407.89 +/- 15.03 541.00 379.00 - 703.00 Pass MAW-4431 08/01/14 Am-241 0.79 +/- 0.08 0.88 0.62 - 1.14 Pass MAW-4431 08/01/14 Cs-137 18.62 +/- 0.54 18.40 12.90 - 23.90 Pass MAW-4431 08/01/14 Co-57 24.85 +/- 0.42 24.70 17.30 - 32.10 Pass MAW-4431 08/01/14 Co-60 12.27 +/- 0.38 12.40 8.70 - 16.10 Pass MAW-4431 08/01/14 H-3 207.20 +/- 10.60 208.00 146.00 - 270.00 Pass MAW-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 Pass MAW-4431 08/01/14 Zn-65 11.46 +/- 0.78 10.90 7.60 - 14.20 Pass MAW-4493 08/01/14 Gr. Alpha 0.93 +/- 0.07 1.40 0.42 - 2.38 Pass MAW-4493 08/01/14 Gr. Beta 6.31 +/- 1.35 6.50 3.25 - 9.75 Pass MAAP-4433 08/01/14 Sr-90 0.74 +/- 0.10 0.70 0.49 - 0.91 Pass MAAP-4444 08/01/14 Sr-89 7.82 +/- 0.52 9.40 6.60 - 12.20 Pass MAAP-4444 08/01/14 Sr-90 0.76 +/- 0.10 0.76 0.53 - 0.99 Pass MAVE-4436 08/01/14 Cs-1 34 7.49 +/- 0.18 7.38 5.17 - 9.59 Pass MAVE-4436 08/01/14 Co-57 11.20 +/- 0.19 9.20 6.40 - 12.00 Pass MAVE-4436 08/01/14 Co-60 6.84 +/- 0.17 6.11 4.28 - 7.94 Pass MAVE-4436 08/01/14 Mn-54 8.11 +/- 0.26 7.11 4.97 - 9.23 Pass MAVE-4436 08/01/14 Zn-65 7.76 +/- 0.43 6.42 4.49 - 8.35 Pass a 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) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series 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 / L MAW-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 matrix with a close spectral energy.

(5) Result of reanalysis Fe-55 32.63 +/- 16.30 Bq/L D-9 Page 99 of 140

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APPENDIX E ERRATA DATA Page 101 of 140

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There is no errata data for 2014.

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APPENDIX F ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

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Docket No: 50-461 CLINTON POWER STATION Annual Radiological Groundwater Protection Program Report 1 January through 31 December 2014 Prepared By Teledyne Brown Engineering Environmental Services P Exelon Generation.

Clinton Power Station Clinton, IL 61727 April 2015 Page 107 of 140

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Table Of Contents I. Sum m ary and Conclusions ......................................................................................... 1 II. Introduction ............................................................................................................. 3 A. Objectives of the RGPP .................................................................................. 3 B. Im plementation of the Objectives .................................................................... 3 C. Program Description ...................................................................................... 4 D. Characteristics of Tritium (H-3) ...................................................................... 5 Ill. Program Description ................................................................................................ 5 A. Sam ple Analysis .............................................................................................. 5 B. Data Interpretation ......................................................................................... 6 C. Background Analysis ....................................................................................... 7

1. Background Concentrations of Tritium ................................................. 7 IV. Results and Discussion ........................................................................................... 9 A. Program Exceptions ....................................................................................... 9 B. Program Changes ......................................................................................... 9 C. Groundwater Results .................................................................................... 9 D. Surface W ater Results .................................................................................. 11 E. Precipitation Water Results ........................................................................... 11 F. Recapture ..................................................................................................... 11 G. Summary of Results - Inter-laboratory Comparison Program ...................... 12 H. Leaks, Spills, and Releases ........................................................................... 12 I. Trends ............................................................................................................ 12 J. Investigations ................................................................................................ 12 K. Actions Taken ................................................................................................ 12 Page 109 of 140

Appendices Appendix A Location Designation of the Annual Radiological Groundwater Protection Program Report (ARGPPR)

Tables Table A-1 Radiological Groundwater Protection Program - Sampling Locations, Clinton Power Station, 2014 Figures Routine Well Water and Surface Water Sample Locations for the Radiological Groundwater Protection Program, Clinton Power Station, 2014 Appendix B Data Tables of the Annual Radiological Groundwater Protection Program Report (ARGPPR)

Tables Table B-1.1 Concentrations of Tritium, Strontium, Gross Alpha, and Gross Beta in Groundwater Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table B-1.2 Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table B-1.3 Concentrations of Hard-To-Detects in Groundwater Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table B-11.1 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table B-11.2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

Table B-111.1 Concentrations of Tritium in Precipitation Water Samples Collected in the Vicinity of Clinton Power Station, 2014.

ii Page I10 of 140

I. Summary and Conclusions In 2006, Exelon instituted a comprehensive program to evaluate the impact of station operations on groundwater and surface water in the vicinity of Clinton Power Station (CPS). This evaluation involved numerous station personnel and contractor support personnel. This report covers groundwater and surface water samples, collected outside of the Licensee required Off-Site Dose Calculation Manual (ODCM) requirements, both on and off station property in 2014. During that time period, 607 analyses were performed on 104 samples from 32 locations. The monitoring was conducted in four phases.

In assessing all the data gathered for this report, it was concluded that the operation of CPS had no adverse radiological impact on the environment, and there are no known active releases into the groundwater or surface water at CPS. No program changes occurred during the sampling year of 2014.

Gamma-emitting radionuclides associated with licensed plant operations were not detected at concentrations greater than their respective Lower Limits of Detection (LLDs) as specified in NUREG-1 302 in any of the groundwater or surface water samples. In the case of tritium, Exelon specified that the independent laboratory achieve a lower limit of detection 10 times lower than that required 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, or precipitation water samples at concentrations greater than the United States Environmental Protection Agency (USEPA) drinking water standard (and the Nuclear 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 tritium concentrations ranged from 182 +/- 119 pCi/L to 257 +/- 132 pCi/L. Tritium was not detected 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 in 2014. 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.

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Hard-To-Detect analyses were performed on two groundwater locations. The analyses 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 were not found at concentrations greater than their respective MDCs.

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II. Introduction The Clinton Power Station (CPS), consisting of one approximately 1,140 MW gross electrical power output boiling water reactor is located in Harp Township, DeWitt County, Illinois. CPS is owned and operated by Exelon and became operational in 1987. Unit No. 1 went critical on 15 February 1987. The site encloses approximately 13,730 acres. This includes the 4,895 acre, man-made cooling lake and about 452 acres of property not owned by Exelon. The plant is situated on approximately 150 acres. The cooling water discharge flume, which discharges 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 the aforementioned 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 impacts from station operations before significant radiological impact to the environment and potential drinking water sources.

2. Understand the local hydrogeologic regime in the vicinity of the station and maintain up-to-date knowledge of flow patterns on the surface and shallow subsurface.

3. Perform routine water sampling and radiological analysis of water from selected 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 Station as discussed below:

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1. Exelon and its consultant identified locations as described in the Phase 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 the public in station specific reports.

2. The Clinton Power Station reports describe the local hydrogeologic regime. Periodically, the flow patterns on the surface and shallow subsurface are updated based on ongoing measurements.

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

4. Clinton Power Station has implemented new procedures to identify and report new leaks, spills, or other detections with potential radiological significance in a timely manner.

5. Clinton Power Station staff and consulting hydrogeologist assess analytical 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 Water Samples of water are collected, managed, transported and analyzed 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 station personnel are trained in the collection, preservation management, and shipment of samples, as well as in documentation of sampling events. Analytical laboratories are subject to internal quality assurance programs and inter-laboratory cross-check programs, as well as nuclear industry audits. Station personnel review and evaluate all analytical data deliverables after initial review by the contractor.

Analytical data results are reviewed by both station personnel and an independent hydrogeologist for adverse trends or changes to Page 114 of 140

hydrogeologic conditions.

D. Characteristics of Tritium (H-3)

Tritium (chemical symbol H-3) is a radioactive isotope of hydrogen. The most common form of tritium is tritium oxide, which is also called "tritiated water." The chemical properties of tritium are essentially those of ordinary hydrogen.

Tritiated water behaves the same as ordinary water in both the environment and the body. Tritium can be taken into the body by drinking water, breathing air, eating food, or absorption through skin. Once tritium enters the body, it disperses quickly and is uniformly distributed throughout the body. Tritium is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days. Within one month or so after ingestion, essentially all tritium is cleared. Organically bound tritium (tritium that is incorporated in organic compounds) can remain in the body for a longer period.

Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules. Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity, and in special production reactors, where the isotopes lithium-7 and/or boron-10 are activated 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 at the same velocity as the average groundwater velocity.

Tritium has a half-life of approximately 12.3 years. It decays spontaneously to helium-3 (3He). This radioactive decay releases a beta particle (low-energy electron). The radioactive decay of tritium is the source of the health risk from exposure to tritium. Tritium is one of the least dangerous radionuclides because it emits very weak beta radiation and leaves the body relatively quickly. Since tritium is almost always found as water, it goes directly into soft tissues and organs. The associated dose to these tissues is generally uniform and is dependent on the water content of the specific tissue.

Ill. Program Description A. Sample Analysis This section describes the general analytical methodologies used by TBE to analyze the environmental samples for radioactivity for the Clinton Page 115 of 140

Power Station RGPP in 2014.

In order to achieve the stated objectives, the current program includes the following analyses:

1. Concentrations of gamma emitters in groundwater and surface water.

2. Concentrations of strontium in groundwater.

3. Concentrations of tritium in groundwater, surface water and precipitation 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 becoming operational were used as a baseline with which these operational data were compared. For the purpose of this report, Clinton Power Station was considered 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 by the analytical parameter.

2. Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium in environmental samples is frequently on the order of 50% of the Page 116 of 140

measurement value.

Statistically, the exact value of a measurement is expressed as a range with a stated level of confidence. The convention is to report results with a 95% level of confidence. The uncertainty comes from calibration standards, sample volume or weight measurements, sampling uncertainty and other factors. Exelon reports the uncertainty of a measurement created by statistical process (counting error) as well as all sources of error (Total Propagated Uncertainty or TPU). Each result has two values calculated. Exelon reports the TPU by following the result with plus or minus +/- the estimated sample standard deviation, as TPU, that is obtained by propagating all sources of analytical uncertainty in measurements.

Analytical uncertainties are reported at the 95% confidence level in this report for reporting consistency with the AREOR.

Gamma spectroscopy results for each type of sample were grouped 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 Analysis A 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 sampled and analyzed during the pre-operational REMP were atmospheric radiation, fall-out, domestic water, surface water, marine life, milk, and vegetation. The results of the monitoring were detailed in the report entitled, Environmental Radiological Monitoring for Clinton Power Nuclear Power Station, Illinois Power Company, Annual Report 1987, May 1988.

The pre-operational REMP contained analytical results from samples collected from the surface water and groundwater.

1. Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others.

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a. Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. In the upper atmosphere, "Cosmogenic" tritium is produced from the bombardment of stable nuclides and combines with oxygen to form tritiated water, which will then enter the hydrologic cycle. Below ground, "lithogenic" tritium is produced by the bombardment of natural lithium present in crystalline rocks by neutrons produced by the radioactive decay of naturally abundant uranium and thorium. Lithogenic production of tritium is usually negligible compared to other sources due to the 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 with additional testing, resulting in the release of significant amounts of tritium to the atmosphere. The Canadian heavy water nuclear power reactors, other commercial power reactors, nuclear research and weapons production continue to influence tritium concentrations in the environment.

b. Precipitation Data Precipitation samples are routinely collected at stations around the world for the analysis of tritium and other radionuclides. Two publicly available databases that provide tritium concentrations in precipitation are Global Network of Isotopes in Precipitation (GNIP) and USEPA's RadNet database. GNIP provides tritium precipitation concentration data for samples collected world wide from 1960 to 2006.

RadNet provides tritium precipitation concentration data for samples collected at stations through out the U.S. from 1960 up to and including 2006. Based on GNIP data for sample stations located in the U.S. Midwest, tritium concentrations peaked around 1963. This peak, which approached 10,000 pCi/L for some stations, coincided with the atmospheric testing of thermonuclear weapons. Tritium concentrations in surface water showed a sharp decline up until 1975, followed by a gradual decline since that time. Tritium concentrations in Midwest precipitation have typically been 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 from the external causes described above.

c. Surface Water Data Tritium concentrations are routinely measured in Clinton Lake.

According to the USEPA, surface water data typically has an uncertainty +/- 70 to 100 pCi/L 95% confidence bound on each given measurement. Therefore, the typical background data provided may be subject to measurement uncertainty of approximately +/- 70 to 100 pCi/L.

The radio-analytical laboratory is counting tritium results to an Exelon specified LLD of 200 pCi/L. Typically, the lowest positive measurement will be reported within a range of 40 -

240 pCi/L or 140 +/- 100 pCi/L. Clearly, these sample results cannot be distinguished as different from background at this concentration.

IV. Results and Discussion A. Program Exceptions

1. Sample Anomalies There were no samples anomalies in 2014.

2. Missed Samples There were no missed samples in 2014.

B. Program Changes There were no sampling program changes in 2014.

C. Groundwater Results Groundwater Baseline samples were collected from off-site wells during four (4) phases at the station. Analytical results are discussed below. No Page 119 of 140

anomalies were noted during the year.

Tritium Samples from 17 locations were analyzed for tritium activity (Table B-1.1 Appendix B). Tritium values ranged from below the Exelon imposed LLD of 200 pCi/I to 257 pCi/l.

Strontium Strontium-89 was not detected in any of the 17 samples analyzed and the required LLD of 10 pCi/L was met. Strontium-90 was also not detected in any of the 17 samples analyzed and the required LLD 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 and suspended fractions were performed on groundwater samples during 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 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 (Table B-1.1 Appendix B).

Gamma Emitters Naturally occurring K-40 was detected in one sample at a concentration of 43 pCi/L. No other gamma emitting nuclides were detected (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 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 were not detected at concentrations greater than their respective MDCs.

Occasionally, the isotopes of U-234 and U-238 are detected at low levels and indistinguishable from background (Table B-1.3 Appendix B).

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D. Surface Water Results Surface Water Baseline samples were collected from on-site surface waters during four (4) phases at the station. Analytical results are discussed below. No anomalies were noted during the year.

Tritium Samples from seven locations were analyzed for tritium activity (Table B-11.1 Appendix B). Tritium was not detected at concentrations greater than the LLD.

Strontium Strontium was not analyzed in 2014 (Table B-11.1 Appendix B).

Gamma Emitters No gamma emitting nuclides were detected (Table B-I1.2, Appendix B).

E. Precipitation Water Results Precipitation Water Precipitation water samples were collected during the third quarter of 2014. Analytical results are discussed below. No anomalies were noted during the year.

Tritium Tritium was not detected at concentrations greater than the LLD (Table B-Ill.1 Appendix B).

F. Recapture Clinton Power Station conducted recapture precipitation sampling and analysis per the Radiological Groundwater Protection Program. No consistent indication of recapture was identified.

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G. Summary of Results - Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE are presented in the Annual Radiological Environmental Operating Report.

H. Leaks, Spills, and Releases No leaks, spills or releases were identified during the year.

Trends The historic low level tritium activity detected at MW-CL-14S and MW-CL-21 S has continued to decrease over the course of 2014. All sampling well locations are currently indicating tritium levels less than the required LLD of 200 pCi/I. All wells will continue to be sampled in accordance with the RGPP.

J. Investigations Currently no investigations are on-going.

K. Actions Taken

1. Compensatory Actions There have been no station events requiring compensatory actions at the Clinton Power Station in 2014.

2. Installation of Monitoring Wells No new wells were installed during the 2014.

3. Actions to Recover/Reverse Plumes No actions were required to recover or reverse groundwater plumes.

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APPENDIX A LOCATION DESIGNATION OF THE ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

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TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Clinton Power Station, 2014 Site Site Type B-3 Monitoring Well MW-CL-i Monitoring Well MW-CL-2 Monitoring Well MW-CL-121 Monitoring Well MW-CL-131 Monitoring Well MW-CL-13S Monitoring Well MW-CL-14S Monitoring Well MW-CL-151 Monitoring Well MW-CL-15S Monitoring Well MW-CL-16S Monitoring Well MW-CL-17S Monitoring Well MW-CL-181 Monitoring Well MW-CL-18S Monitoring Well MW-CL-19S Monitoring Well MW-CL-20S Monitoring Well MW-CL-21S Monitoring Well MW-CL-22S Monitoring Well Sewage Treatment Plant Surface Water SW-CL-1 Surface Water SW-CL-2 Surface Water SW-CL-4 Surface Water SW-CL-5 Surface Water SW-CL-6 Surface Water SW-CL-7 Surface Water RG-2 Precipitation Water RG-3 Precipitation Water RG-15 Precipitation Water RG-26 Precipitation Water RG-N Precipitation Water RG-NE Precipitation Water RG-NNE Precipitation Water MPT-1 Precipitation Water A-I Page 125 of 140

0 20D 400 Figure A-i1 Onsite Sampling Locations at Clinton Power Station

~*1 N

KIZ, h~~O-2 <~N *

~swcL-4 I "\2 7

/

I 7*\ /

V1 / v~-~- /4 V

'N 0

/ 'N N. ",N

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7

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J

/

o\7 100 to 200 /"

-iPet7 Figure A - 2 Sampling Locations South of Clinton Power Station

,_r SM4XIG (51 0 100 23O Figure A - 3 Sampling Locations East of Clinton Power Station

0 RG-15 0

RG-2 RG-3 Figure A - 4 Recapture Sampling Locations of Clinton Power Station A-5 Page 129 of 140

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APPENDIX B DATA TABLES OF THE ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

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TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

B-3 02/25/14 < 192 B-3 05/19/14 < 176 B-3 08/18/14 < 160 <3.4 <0.5 <1.1 < 0.4 2.3 +/- 1.1 < 1.5 B-3 10/27/14 < 188 MW-CL-1 02/25/14 < 193 MW-CL-1 05/19/14 < 176 MW-CL-1 08/18/14 < 159 <6.8 <0.8 <1.5 < 0.4 2.6 +/- 1.1 < 1.5 MW-CL-1 10/27/14 < 190 MW-CL-121 02/25/14 < 195 MW-CL-121 05/19/14 < 176 MW-CL-121 08/18/14 < 173 <5.7 <0.9 <1.1 < 0.4 3.3 +/- 1.1 < 1.5 MW-CL-121 10/27/14 < 192 MW-CL-131 02/25/14 < 192 MW-CL-131 05/19/14 < 174 MW-CL-131 08/18/14 < 173 < 4.4 < 0.6 < 0.7 < 0.4 2.8 +/- 1.1 < 1.5 MW-CL-131 10/27/14 < 191 MW-CL-13S 02/25/14 < 193 MW-CL-13S 05/19/14 < 172 MW-CL-13S 08/18/14 < 175 <5.3 <0.8 <0.7 < 0.4 1.7 +/- 1.0 < 1.5 MW-CL-13S 10/27/14 < 191 MW-CL-14S 02/24/14 < 195 MW-CL-14S 05/20/14 < 175 MW-CL- 14S 08/19/14 182 +/- 119 < 3.6 <0.7 <1.3 < 1.1 10.0 +/- 1.5 < 1.4 MW-CL-14S 10/28/14 257 +/- 132 MW-CL-151 02/25/14 < 191 MW-CL-151 05/19/14 < 174 MW-CL-151 08/18/14 < 174 < 5.4 < 0.7 < 0.7 < 1.1 2.0 +/- 1.0 < 1.4 MW-CL-151 10/27/14 < 193 MW-CL-15S 02/25/14 < 192 MW-CL-15S 05/19/14 < 171 MW-CL-15S 08/18/14 < 173 < 6.0 < 0.9 < 0.6 < 1.1 1.1 +/- 0.7 < 1.4 MW-CL-15S 10/27/14 < 192 MW-CL-16S 02/24/14 < 192 MW-CL- 16S 05/20/14 < 172 MW-CL- 16S 08/19/14 < 173 <5.0 <0.8 <1.1 <1.1 5.9 +/- 1.2 < 1.4 MW-CL-16S 10/28/14 < 191 MW-CL-17S 02/24/14 < 191 MW-CL-17S 05/20/14 < 171 MW-CL-17S 08/19/14 < 176 <6.5 <1.0 <1.4 < 1.1 1.8 +/- 1.1 < 1.4 MW-CL-17S 10/28/14 < 191 MW-CL-181 02/24/14 < 191 MW-CL-181 05/20/14 < 175 MW-CL-181 08/19/14 < 173 <6.6 <0.8 <1.0 < 1.1 3.7 +/- 1.1 < 1.4 MW-CL-181 10/28/14 < 159 MW-CL-18S 02/24/14 < 191 MW-CL-18S 05/20/14 < 176 MW-CL-18S 08/19/14 < 173 < 6.2 < 0.8 < 1.7 < 0.7 4.2 +/- 1.4 < 1.6 MW-CL-1 8S 10/28/14 < 161 MW-CL-19S 02/25/14 < 192 MW-CL-19S 05/19/14 < 171 MW-CL-19S 08/18/14 < 174 <5.3 <0.9 <3.0 < 0.7 3.2 +/- 1.5 < 1.6 MW-CL-19S 10/27/14 < 155 B-I Page 133 of 140

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

MW-CL-2 02/25/14 < 193 MW-CL-2 05/19/14 < 174 MW-CL-2 08/18/14 < 162 < 5.5 < 0.7 < 1.0 < 0.4 < 1.5 < 1.5 MW-CL-2 10/27/14 < 191 MW-CL-20S 02/25/14 < 192 MW-CL-20S 05/19/14 < 174 MW-CL-20S 08/18/14 < 170 < 5.8 < 1.0 < 1.1 < 0.7 3.0 +/- 1.2 < 1.6 MW-CL-20S 10/27/14 < 161 MW-CL-21S 02/25/14 202 +/- 130 MW-CL-21S 05/19/14 < 178 MW-CL-21S 08/18/14 240 +/- 121 < 5.4 < 0.9 < 0.8 < 0.7 < 1.6 < 1.6 MW-CL-21S 10/27/14 < 184 MW-CL-22S 02/24/14 < 192 MW-CL-22S 05/20/14 < 175 MW-CL-22S 08/19/14 < 172 < 6.2 < 1.0 < 1.7 < 0.7 8.7 +/- 1.4 < 1.6 MW-CL-22S 10/28/14 < 182 B-2 Page 134 of 140

Table B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- SIGMA SITE COLLECTION Be-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 DATE B-3 08/18/14 < 35 < 30 < 3 <4 <8 <4 <9 <4 <7 <3 <4 <27 <7 MW-CL-1 08/18/14 <44 <85 <4 <4 <9 <4 <8 <5 <8 <4 <4 <32 <10 MW-CL-121 08/18/14 < 38 < 38 < 4 <5 <11 <4 <9 <5 <8 <4 <5 <31 <11 MW-CL-131 08/18/14 < 30 < 32 < 3 <4 <9 <4 <7 <4 <6 <3 <3 <25 <8 MW-CL-1 3S 08/18/14 < 36 < 68 < 3 <4 <9 <4 <7 <4 <7 <4 <4 <30 <7 MW-CL-14S 02/24/14 < 37 < 67 < 4 <4 <8 <4 <7 <4 <7 <4 <4 <31 <7 MW-CL-14S 08/19/14 < 27 43 26 < 3 <3 <6 <2 <5 <3 <5 <3 <3 <20 <6 MW-CL-151 08/18/14 < 35 < 67 < 4 <4 <9 <4 <7 <4 <6 <3 <4 <27 <11 MW-CL-1 5S 08/18/14 < 35 < 29 < 3 <4 <8 <3 <7 <3 <6 <3 <3 <24 <8 MW-CL-16S 08/19/14 < 32 < 62 < 3 <3 <6 <3 <6 <3 <6 <3 <3 <21 <6 MW-CL-17S 08/19/14 < 36 < 35 < 4 <4 <7 <4 <8 <4 <8 <4 <4 <29 <8 MW-CL-181 08/19/14 < 39 < 62 < 3 <4 <10 <5 <8 <4 <8 <4 <3 <32 <9 MW-CL-18S 08/19/14 < 40 < 75 < 4 <5 <10 <4 <8 <5 <7 <4 <4 <31 <8 MW-CL-19S 08/18/14 < 33 < 28 <3 <3 <8 <3 .<6 <3 <6 <3 <3 <24 <7 MW-CL-2 08/18/14 < 39 < 69 <4 <4 <8 <4 <7 <5 <8 <4 <4 <29 <9 MW-CL-20S 08/18/14 < 26 <61 <3 <3 <6 <3 <5 <3 <5 <3 <3 <22 <8 MW-CL-21S 02/25/14 < 41 < 30 <4 <4 <9 <4 <9 <4 <8 <4 <4 <31 <9 MW-CL-21S 08/18/14 < 38 < 75 <3 <4 <8 <3 <7 <4 <7 <4 <4 <28 <9 MW-CL-21S 10/27/14 < 23 < 21 <2 <2 <6 <2 <5 <3 <5 <2 <2 <18 <5 MW-CL-22S 08/19/14 < 40 < 38 <4 <4 <10 <3 <8 <5 <8 <4 <5 <31 <9 0

LA 0

TABLE B-I.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Am-241 Cm-242 Cm-243/244 Pu-238 Pu-239/240 U-234 U-235 U-238 Fe-55 Ni-63 DATE MW-CL- 14S 08/19/14 < 0.03 < 0.03 < 0.14 < 0.03 < 0.05 < 0.03 < 0.04 < 0 .05

184 MW-C L-21S 08/18/14 < 0.18 < 0.07 < 0.18 < 0.05 < 0.11 < 0.02 < 0.04 < 0 .07

167 < 4.8 iTq U.,

CD

TABLE B-11.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA COLLECTION SITE DATE H-3 SW-CL-i 02/25/14 < 192 SW-CL-I 05/19/14 < 174 SW-CL-i 08/18/14 < 171 SW-CL-i 10/27/14 < 162 SW-CL-2 02/25/14 < 192 SW-CL-2 05/19/14 < 173 SW-CL-2 08/18/14 < 171 SW-CL-2 10/27/14 < 162 SW-CL-4 03/26/14 < 170 SW-CL-4 05/19/14 < 172 SW-CL-4 08/18/14 < 174 SW-CL-4 10/27/14 < 164 SW-CL-5 03/26/14 < 169 SW-CL-5 05/19/14 < 174 SW-CL-5 08/18/14 < 175 SW-CL-5 10/27/14 < 163 SW-CL-6 03/26/14 < 168 SW-CL-6 05/19/14 < 177 SW-CL-6 08/18/14 < 160 SW-CL-6 10/27/14 < 184 SW-CL-7 02/25/14 < 193 SW-CL-7 05/19/14 < 175 SW-CL-7 08/18/14 < 161 SW-CL-7 10/27/14 < 163 SEWAGE TREATMENT PLANT 02/25/14 < 196 SEWAGE TREATMENT PLANT 05/19/14 < 173 SEWAGE TREATMENT PLANT 08/18/14 < 158 SEWAGE TREATMENT PLANT 10/27/14 < 156 B-5 Page 137 of 140

Table B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- SIGMA SITE COLLECTION Be-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 DATE CL-SW-CL-1 08/18/14 < 39 < 38 <4 <4 <8 <4 <8 <3 <7 <4 <4 < 30 <9 CL-SW-CL-2 08/18/14 < 36 < 39 <3 <4 <8 <3 <6 <4 <7 <4 <4

27 <8 CL-SW-CL-4 08/18/14 < 38 < 68 <3 <4 <10 <5 <7 <4 <7 <4 <4

28 < 10 CL-SW-CL-5 08/18/14 < 33 < 58 <3 <4 <8 <3 <7 <4 <7 <3 <3 < 28 <8 CL-SW-CL-6 08/18/14 < 34 < 24 <3 <3 <8 <3 <7 <3 <7 <3 <3 < 25 <9 CL-SW-CL-7 08/18/14 < 29 < 57 <3 <3 <7 <3 <6 <3 <6 <3 <3 < 23 <7 SEWAGE TREATMENT PLANT 08/18/14 < 27 < 23 <2 <3 <7 <3 <5 <3 <5 <3 <3 < 22 <8 (10 00 C

0

TABLE B-l1l.1 CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SAMPLES COLLECTED IN THE VICINITY OF CLINTON POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 MPI-1 07UI3/14 < 163 RG-15 07/03/14 < 166 RG-2 07/03/14 < 165 RG-26 07/03/14 < 167 RG-3 07/03/14 < 163 RG-N 07/03/14 < 167 RG-NE 07/03/14 < 165 RG-NNE 07/03/14 < 164 B-7 Page 139 of 140

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