ML13155A003

Annual Radiological Environmental Operating Report 70, January 1, 2012 Through December 31, 2012

ML13155A003
Person / Time
Site:	Peach Bottom
Issue date:	05/30/2013
From:	Pat Navin Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML13155A003 (137)

Text

AoExelon Generation' May 30, 2013 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Peach Bottom Atomic Power Station Unit Nos. 2 and 3 Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-277 and 50-278

SUBJECT:

Annual Radiological Environmental Operating Report 70 January 1, 2012 through December 31, 2012 In accordance with the requirements of Section 5.6.2 of the Peach Bottom Atomic Power Station, Units 2 and 3 Technical Specifications, this letter submits the Annual Radiological Environmental Operating Report70.

This report provides the 2012 results for the Radiological Environmental Monitoring Program (REMP) as called for in the Offsite Dose Calculation Manual.

In assessing operation of There are no the data collected for the REMP, we have concluded that the

PBAPS, Units 2 and 3, had no adverse Impact on the environment.

commitments contained in this letter.

If you have any questions or require additional information, please do not hesitate to contact Gerard Stenclik at (717) 456-4491.

Sincerely, Patrick D. Navin, Plant Manager Peach Bottom Atomic Power Station PDN/RJR/GRS/JCC/EAS/bcb Enclosure ccn 13-47 cc:

William Dean, Administrator, Region I, USNRC (william.dean.nrc.gov)

G. F

• Wunder, Project Manager, USNRC (george.wunder@nrc.gov)

S.

Hansell, USNRC Senior Resident Inspector, PBAPS Joe Furia, Region I, USNRC, 2100 Renaissance Blvd, King of Prussia, PA 19406

May 30, 2013 U.S. Nuclear Regulatory Commission Annual Radiological Environmental Operating Report 70 January 1, 2012 through December 31, 2012 bcc:

P. Steinhauer, PSEG (patricia.steinhauer@pseg.com]

Susan Grey, State of Maryland [SGray@dnr.state.md.us]

R. R. Janati, Commonwealth of Pennsylvania [rjanati@state.pa.us]

C. Mudrick, Kennett Square M. Massaro, PBAPS, SMB4-9 P. Navin, PBAPS, A4-1S T. Moore, PBAPS, SMB3-2A J. Bowers, PBAPS, PB-TC J. Armstrong, PBAPS, SMB4 D. P. Helker, Kennett Square R. Salvadore, PBAPS, SMB4-5 W. R. Nelle, PBAPS Records Management 2C.112

Docket No:

50-277 50-278 PEACH BOTTOM ATOMIC POWER STATION UNITS 2 and 3 Annual Radiological Environmental Operating Report Report No. 70 1 January Through 31 December 2012 Prepared By

-- Exelon Generation e

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Peach Bottom Atomic Power Station Delta, PA 17314 May 2013

TABLE OF CONTENTS I. Executive Sum m ary.........................................................................................................

1 I1. Introduction.............................................................................................................

3 A. Objectives.............................................................................................................

3 B. Im plementation..........................................................................................................

3 Ill. Program Description..................................................................................................

4 A. Sam ple Collection....................................................................................................

4 B. Sam ple Analysis.......................................................................................................

6 C. Data Interpretation....................................................................................................

6 D. Program Exceptions................................................................................................

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

8 IV. Results and Discussion...........................................................................................

8 A. Aquatic Environment................................................................................................

8

1. Surface W ater................................................................................................

8

2. Drinking W ater................................................................................................

9

3. Precipitation..................................................................................................

10 4. F is h....................................................................................................................

1 0

5. Sediment........................................................................................................

10 B. Atmospheric Environment.......................................................................................

11

1. Airborne.........................................................................................................

11

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

11

b. Airbom e Iodine....................................................................................

12

2. Terrestrial.......................................................................................................

12

a. Milk.......................................................................................................

12

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

12 C. Am bient Gam ma Radiation....................................................................................

13 D. Independent Spent Fuel Storage Installation...........................

13 E. Land Use Census...................................................................................................

14 F. Errata Data..................................................................................................................

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

14 V. References...................................................................................................................

17

Appendices Appendix A Tables Table A-1 Appendix B Tables Table B-1 Table B-2 Figures Figure B-1 Figure B-2 Figure B-3 Appendix C Tables Table C-1.1 Table C-1.2 Table C-1.3 Table C-I1.1 Radiological Environmental Monitoring Report Summary Radiological Environmental Monitoring Program Annual Summary for the Peach Bottom Atomic Power Station, 2012 Sample Designation and Locations Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2012 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2012 Environmental Sampling Locations within One Mile of the Peach Bottom Atomic Power Station, 2012 Environmental Sampling Locations between One and Approximately Five Miles of the Peach Bottom Atomic Power Station, 2012 Environmental Sampling Locations Greater than Five Miles from the Peach Bottom Atomic Power Station, 2012 Data Tables and Figures - Primary Laboratory Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of 1-131 in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gross Beta in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 ii

Table C-11.2 Table C-11.3 Table C-11.4 Table C-I11.1 Table C-IV.1 Table C-V.1 Table C-V.2 Table C-V.3 Table C-VI.1 Table C-VII.1 Table C-VII.2 Table C-VIII.1 Table C-IX.1 Table C-IX.2 Table C-IX.3 Figures Figure C-1 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of 1-131 in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Predator & Bottom Feeder (Fish)

Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Monthly and Yearly Mean Values of Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Food Product Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Quarterly OSLD Results for Peach Bottom Atomic Power Station, 2012 Mean Quarterly OSLD Results for the Site Boundary, Intermediate and Control Locations for Peach Bottom Atomic Power Station, 2012 Summary of the Ambient Dosimetry Program for Peach Bottom Atomic Power Station, 2012 Monthly Total Gross Beta Concentrations in Drinking Water Samples Collected in the Vicinity of PBAPS, 2012 iii

Figure C-2 Figure C-3 Figure C-4 Figure C-5 Figure C-6 Figure C-7 Figure C-8 Appendix D Tables Table D-1.1 Table D-1.2 Table D-1.3 Table D-1.4 Table D-1.5 Table D-11.1 Table D-11.2 Table D-111.1 Mean Annual Cs-1 37 Concentrations in Fish Samples Collected in the Vicinity of PBAPS, 1971-2012 Mean Semi-Annual Cs-1 37 Concentrations in Sediment Samples Collected in the Vicinity of PBAPS, 1971-2012 Mean Weekly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of PBAPS, 2012 Mean Monthly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of PBAPS, 1970-2012 Mean Annual Cs-137 Concentrations in Milk Samples Collected in the Vicinity of PBAPS, 1971-2012 Mean Quarterly Ambient Gamma Radiation Levels (OSLD) in the Vicinity of PBAPS, 1973-2012 Quarterly Ambient Gamma Radiation Levels (OSLD) Near the Independent Spent Fuel Storage Installation Located at PBAPS, 1998-2012 Data Tables and Figures - QC Laboratory Concentrations of Gross Beta Insoluble in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gross Beta Soluble in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of 1-131 in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gross Beta Insoluble in Air Particulate and 1-131 in Air Iodine Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Concentrations of 1-131 by Chemical Separation and Gamma Emitters in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 iv

Table D-IV.1 Figures Figure D-1 Figure D-2 Appendix E Tables Table E-1 Table E-2 Table E-3 Table E-4 Table E-5 Appendix F Appendix G Summary of Collection Dates for Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2012 Comparison of Monthly Total Gross Beta Concentrations in Drinking Water Samples Split Between the Primary and QC Laboratories, 2012 Comparison of Weekly Gross Beta Concentrations from Collocated Air Particulate Locations Split Between the Primary and QC Laboratories, 2012 Quality Control - Inter-Laboratory Comparison Program Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2012 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2012 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2012 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2012 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2012 Errata Data Annual Radiological Groundwater Protection Program Report (ARGPPR)

V

Intentionally Left Blank

1.

Executive Summary In 2012, the dose from both liquid and gaseous effluents was conservatively calculated for the Maximum Exposed Member of the Public for PBAPS. The results of those calculations and their comparison to the allowable limits were as follows:

Location

% of Applicable Estimated Age Distance Direction Applicable Effluent Organ Dose Group (meters)

(toward)

Limit Limit Unit Noble Gas Gamma-Air 2.32E-01 All 1.1OE+03 SSE 1.16E+00 2.OOE+01 mrad Dose Noble Gas Beta-Air 1.58E-01 All 1.1OE+03 SSE 3.95E-O1 4.OOE+01 mrad Dose Noble Gas Total Body 2.24E-01 All 1.10E+03 SSE 2.24E+00 1.OOE+01 mrem (gamma)

Noble Gas Skin (Beta) 2.92E-01 All 1.10E+03 SSE 9.73E-01 3.OOE+01 mrem Gaseous

Iodine, Particulate, Bone 5.49E-O1 Child 1.10E+03 SSE 1.83E+00 3.OOE+01 mrem Carbon-14 &

Tritium Gaseous

Iodine, Particulate, Thyroid 7.32E-02 Infant 1.10E+03 SSE 2.44E-01 3.OOE+01 mrem Carbon-14 &

Tritium Liquid Total Body 3.36E-04 Child 5.60E-03 6.OOE+00 mrem (gamma)

Site Boundary Liquid GI-LLI 3.78E-03 Adult 1.89E-02 2.OOE+01 mrem Direct Total Body 1.55E+00 All 1.15E+03 SSE 7.05E+00 2.20E+01 mrem Radiation 1

40 CFR Part 190 Compliance Total Dose Total Body 1.77E+00 All 1.15E+03 SSE 7.10E+00 2.50E+01 mrem Total Dose Thyroid 1.62E+00 All 1.15E+03 SSE 2.16E+00 7.50E+01 mrem Total Dose Bone 2.10E+00 All 1.15E+03 SSE 8.40E+00 2.50E+01 mrem Total Dose Total Body 2.24E-01 All 1.15E+03 SSE 7.48E+00 3.OOE+00 mrem Total Dose Bone 5.49E-01 All 1.15E+03 SSE 1.83E+01 3.OOE+00 mrem Total Dose Thyroid 3.05E-01 All 1.15E+03 SSE 5.55E-01 5.50E+01 mrem Doses calculated were well below all ODCM limits.

This report on the Radiological Environmental Monitoring Program conducted for the Peach Bottom Atomic Power Station (PBAPS) by Exelon Nuclear covers the period 1 January 2012 through 31 December 2012. During that time period 1,220 analyses were performed on 285 samples.

Surface water samples were analyzed for concentrations of tritium and gamma emitting nuclides. No tritium, fission or activation products were found.

Drinking water samples were analyzed for concentrations of gross beta, tritium and gamma emitting nuclides. No fission or activation products were found. Gross beta activity detected was consistent with those observed in previous years.

Tritium was not detected in drinking water.

Precipitation samples were analyzed under the RGPP (Radiological Groundwater Protection Program) in 2012.

The remaining sample media representing the aquatic environment included fish and sediment samples. These media were analyzed for concentrations of gamma emitting nuclides. Fish samples showed no detectable fission or activation products from the operation of PBAPS. Cesium-1 37 activity was found at one of three sediment locations and was consistent with data from previous years.

The atmospheric environment was divided into two parts for examination: airborne and terrestrial. Sample media for determining airborne affects included air particulates and air iodine samples. Analyses performed on air particulate samples included gross beta and gamma spectrometry. No fission or activation products were found. The gross beta results were consistent with results from the previous years. Furthermore, no notable differences between control and indicator locations were observed. These findings indicate no measurable effects from the operation of PBAPS.

High sensitivity Iodine-1 31 analyses were performed on weekly air samples. All results were less than the minimum detectable activity for 1-131.

Examination of the terrestrial environment was accomplished by analyzing milk and food product samples. Milk samples were analyzed for low level concentrations of Iodine-1 31 and gamma emitting nuclides. Food product samples were analyzed for concentrations of gamma emitting nuclides. No Peach Bottom activation or fission products were detected.

Ambient gamma radiation levels were measured quarterly throughout the year. All measurements were below 10 mR/standard month and the results were consistent with those measured in previous years.

The results of the Optically-Stimulated Luminescent Dosimetry (OSLD) monitoring program were used to confirm that the Independent Spent Fuel Storage Installation (ISFSI) had no measurable impact on the dose rate in the environs.

In assessing all the data gathered for this report and comparing these results with preoperational data, it was evident that the operation of PBAPS had no adverse radiological impact on the environment.

II.

Introduction Peach Bottom Atomic Power Station (PBAPS) is located along the Susquehanna River between Holtwood and Conowingo Dams in Peach Bottom Township, York County, Pennsylvania. The initial loading of fuel into Unit 1, a 40 MWe (net) high temperature, gas-cooled reactor began on 5 February 1966 and initial criticality was achieved on 3 March 1966. Shutdown of Peach Bottom Unit 1 for decommissioning was on 31 October 1974. For the purposes of the monitoring program, the beginning of the operational period for Unit 1 was considered to be 5 February 1966. A summary of the Unit 1 preoperational monitoring program was presented in a previous report (1). PBAPS Units 2 and 3 are boiling water reactors, each with a power output of approximately 1,170 MWe. The first fuel was loaded into Peach Bottom Unit 2 on 9 August 1973. Criticality was achieved on 16 September 1973 and full power was reached on 16 June 1974. The first fuel was loaded into Peach Bottom Unit 3 on 5 July 1974. Criticality was achieved on 7 August 1974 and full power was first reached on 21 December 1974.

Preoperational summary reports (2)(3) for Units 2 and 3 have been previously issued and summarize the results of all analyses performed on samples collected from 5 February 1966 through 8 August 1973.

A Radiological Environmental Monitoring Program (REMP) for PBAPS was initiated in 1966. This report covers those analyses performed by Teledyne Brown Engineering (TBE), Landauer and Environmental Inc. (Midwest Labs) on samples collected during the period 01 January 2012 through 31 December 2012.

A.

Objectives The objectives of the REMP are:

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 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 plant operation to assess station radiological effects (if any) on man and the environment.

Ill.

Program Description A.

Sample Collection Normandeau Associates Inc., (NAI), collected samples for the PBAPS REMP for Exelon Nuclear. This section describes the general collection methods used by NAI to obtain environmental samples for the PBAPS REMP in 2012. Sample locations and descriptions can be found in Table B-1 and Figures B-1 through B-3, Appendix B. The collection procedures used by NAI are listed in Table B-2, Appendix B.

Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, drinking water, precipitation, fish and sediment. Surface water from two locations (1 LL and 1MM) and drinking water from three locations (133B, 4L and 61) were collected weekly by automatic sampling equipment. Weekly samples from each of the surface and drinking water locations were composited into a separate monthly sample for analysis. Approximately two quarts of water were removed from the weekly sample container and placed into a clean two-gallon polyethylene bottle to form a monthly composite. Control locations were 1 LL and 61. Fish samples comprising the flesh from two groups: Bottom Feeder (channel catfish, flathead catfish, carp, walleye and quillback) and Predator (smallmouth bass, hybrid striped bass and largemouth bass) were collected semiannually from two locations (4 and 6; 6 is the control). Sediment samples composed of recently deposited substrate were collected semiannually at three locations (4J, 4T and 6F; 6F is the control).

Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on air particulate and airborne iodine samples. Air particulate and air iodine samples were collected and analyzed weekly from five locations (1B, lC, 1Z, 3A and 5H2; 5H2 is the control). 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 1 cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.

Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on milk and food product samples. Milk samples were collected biweekly at five locations (J, R, S, U and V; V is the control) from April through November and monthly from December through March. Six additional locations (C, D, E, L, P and W; C and E are the controls) were sampled quarterly. All samples were collected in new unused two gallon plastic bottles from the bulk tank at each location, preserved with sodium bisulfite and shipped promptly to the laboratory.

Food product samples were collected annually at three locations (1Q, 2B and 55; 55 is the control) in May through September. All samples were collected in new unused plastic bags and shipped promptly to the laboratory.

Ambient Gamma Radiation Beginning in 2012, Exelon changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimetry (OSLD) were deployed and Thermo-luminescent Dosimetry (TLD) were discontinued. This change may result in a step change in readings, up or down, depending on site characteristics. The relative comparison to control locations remains valid. OSLD technology is different than that used in a TLD but has the same purpose (to measure direct radiation).

The OSLD locations were placed on and around the PBAPS site as follows:

A site boundary ring, consisting of 20 locations (1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 11, UJ, 1K, 1L, 1M, 1NN, 1P, 1Q, 1R, 2, 2Band 40), near and within the site perimeter representing fence post doses (i.e., at locations where the doses will be potentially greater than maximum annual off-site doses) from PBAPS releases.

An intermediate distance ring, consisting of 23 locations (14, 15, 17, 22, 23, 26, 27, 31A, 32, 3A, 42, 43, 44, 45, 46, 47, 48, 49, 4K, 5, 50, 51 and 6B),

extending to approximately 5 miles from the site and designed to measure possible exposures to close-in population.

The balance of four locations (16, 18, 19 and 24) representing control and special interests areas such as population centers, schools, etc.

The specific OSLD 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 36 ten-degree sectors around the site, where estimated annual dose from PBAPS, if any, would be more significant;

3.

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

4.

And near the dwelling closest to the vents in the prevailing down wind direction.

Two OSLDs - each comprised of three dosimeters enclosed in plastic -

were placed at each location in a Formica "birdhouse" or polyethylene jar located approximately six feet above ground level. The TLD sets were exchanged quarterly, and sent to the laboratory for analysis.

B.

Sample Analysis This section describes the general analytical methods used by Teledyne Brown Engineering and Environmental Inc. to analyze the environmental samples for radioactivity for the PBAPS REMP in 2012. The analytical procedures used by the laboratories are listed in Table B-2, Appendix B.

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 emitting nuclides in surface and drinking water, air particulates, milk, fish, sediment and food products.

3.

Concentrations of tritium in surface and drinking water.

4.

Concentrations of 1-131 in drinking water, surface water, air and milk.

5.

Ambient gamma radiation levels at various site environs.

C.

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

1.

Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is 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 is 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 are designed to achieve the required PBAPS detection capabilities for environmental sample analysis.

The minimum detectable concentration (MDC) is defined similarly as above for LLD; however the MDC is an after-the-fact estimate vice a before-the-fact as in LLD.

2.

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

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

For surface and drinking 12 nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Zr-95, Nb-95, 1-131, Cs-134, Cs-137, Ba-140 and La-140 were reported.

For fish eight nuclides, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Cs-1 34 and Cs-1 37 were reported.

For sediment six nuclides, K-40, Mn-54, Co-58, Co-60, Cs-1 34 and Cs-1 37 were reported.

For air particulate six nuclides, Be-7, Mn-54, Co-58, Co-60, Cs-1 34 and Cs-1 37 were reported.

For milk five nuclides, K-40, Cs-1 34, Cs-1 37, Ba-140 and La-140 were reported.

For food product eight nuclides, Be-7, K-40, Mn-54, Co-58, Co-60, 1-131, Cs-134 and Cs-137 were reported.

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

D.

Program Exceptions For 2012 the PBAPS REMP had a sample collection recovery rate of better than 99%. The exceptions to this program are listed below:

1. Station 22 (Bald Eagle Road) - The tree which held the container and the dosimeter for location 22 was removed, possibly by a utility. The container and dosimeter was not recovered. A new container and dosimeter was attached to an existing pole in the area and the container was replaced with a lockable box (IR 1426228).

Each program exception was reviewed to understand the causes of the program exception. Sampling and maintenance errors were reviewed with the personnel involved to prevent a recurrence. Occasional equipment breakdowns and power outages were unavoidable.

E.

Program Changes OSLD at location 11 was moved to a new location because of a new fence that was constructed. It is now located 3185 ft south of the Reactor Building Vents.

IV.

Results and Discussion A.

Aquatic Environment

1.

Surface Water Samples were taken from a continuous sampler at two locations (1 LL and 1 MM) on a monthly schedule. Of these locations, 1MM located downstream, could be affected by Peach Bottom's effluent releases. The following analyses were performed:

Tritium Monthly samples from both locations were composited quarterly and analyzed for tritium activity (Table C-1.1, Appendix C). No tritium activity was detected.

Iodine Monthly samples from both locations were analyzed for 1-131. All results were less than the MDC (Table C-l.2, Appendix C).

Gamma Spectrometry Samples from both locations were analyzed for gamma emitting nuclides (Table C-1.3, Appendix C). All nuclides were less than the MDC.

2.

Drinkinq Water Monthly samples were collected from continuous water samplers at three locations (13B, 4L and 61). Two locations (13B and 4L) could be affected by Peach Bottom's effluent releases. The following analyses were performed:

Gross Beta Samples from all locations were analyzed for concentrations of total gross beta activity (Tables C-I1.1 and Figures C-1 Appendix C).

Gross beta was detected in 28 of 36 samples. The values ranged from 1.7 to 6.0 pCi/I. Concentrations detected were generally below those detected in previous years.

Tritium Monthly samples from three locations were composited quarterly and analyzed for tritium activity (Table C-11.2, Appendix C). Tritium activity was not detected in any samples.

Iodine Monthly samples from three locations were analyzed for 1-131 (Table C-11.3, Appendix C). All results were less than the MDC.

Gamma Spectrometry Samples from the three locations were analyzed for gamma emitting nuclides (Table C-11.4, Appendix C). All nuclides were less than the MDC.

3.

Precipitation Precipitation samples were analyzed under the RGPP in 2012.

4.

Fish Fish samples comprised of bottom feeder and predator were collected at two locations (4 and 6) semiannually. Location 4 could be affected by Peach Bottom's effluent releases. The following analysis was performed:

Gamma Spectrometry The edible portion of fish samples from both locations was analyzed for gamma emitting nuclides (Table C-11.1, Appendix C).

Naturally occurring K-40 was found at all stations and ranged from 2,715 to 5,020 pCi/kg wet and was consistent with levels detected in previous years. No Peach Bottom fission or activation products were found in 2012. There appears to be a gradual increase in the Cs-1 37 activity from both the control and indicator station. This increase could be the result of historical heat exchanger leaks or nuclear weapons legacy material. Historical levels of Cs-1 37 are shown in Figure C-2, Appendix C.

5.

Sediment Aquatic samples were collected at three locations (4J, 4T and 6F) semiannually. Of these locations two, 4J and 4T located downstream, could be affected by Peach Bottom's effluent releases.

The following analysis was performed:

Gamma Spectrometry Sediment samples from all three locations were analyzed for gamma emitting nuclides (Table C-IV.1, Appendix C). Potassium-40 was found in all locations and ranged from 8,508 to 19,110 pCi/kg dry.

The fission product Cs-1 37 was detected in one of six samples at a concentration of 164 pCi/kg. The activity of Cs-1 37 detected was consistent with those detected in the preoperational years.

Historical levels of Cs-1 37 are shown in Figure C-3, Appendix C.

No other Peach Bottom fission or activation products were found.

B.

Atmospheric Environment

1.

Airborne

a.

Air Particulates Continuous air particulate samples were collected from five locations on a weekly basis. The five locations were separated into three groups: Group I represents locations within the PBAPS site boundary (1B, lC and 1Z), Group II represents the location at an intermediate distance from the PBAPS site (3A) and Group III represents the control location at a remote distance from PBAPS (5H2). The following analyses were performed.

Gross Beta Weekly samples were analyzed for concentrations of beta emitters (Tables C-V.1 and C-V.2 and Figures C-5 and C-6, 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 PBAPS. The results from the On-Site locations (Group I) ranged from 7 to 38 E-3 pCi/m 3, with a mean of 19 E-3 pCi/m 3. The results from the Intermediate Distance location (Group II) ranged from 8 to 34 E-3 pCi/m 3 with a mean of 18 E-3 pCi/m 3. The results from the Distant location (Group Ill) ranged from 6 to 29 E-3 pCi/m 3 with a mean of 16 E-3 pCi/m 3. A comparison of the weekly mean values for 2012 indicate no notable differences among the three groups (Figure C-5, Appendix C). In addition, a comparison of the 2012 air particulate data with previous years data indicate no effects from the operation of PBAPS (Figure C-4, Appendix C).

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

Naturally occurring Be-7 due to cosmic ray activity was detected in 19 of 20 samples. The values ranged from 36 to 100 E-3 pCi/m 3. All other nuclides were less than the MDC and all required LLDs were met.

b.

Airborne Iodine Continuous air samples were collected from five locations (1B, 1Z, IC, 3A, and 5H2) and analyzed weekly for 1-131 (Table C-VI.1, Appendix C). All results were less than the MDC for 1-131.

2.

Terrestrial

a.

Milk Samples were collected from five locations (J, R, S, U and V) biweekly April through November and monthly December through March. Samples from six additional locations (C, D, E, L, P and W) were taken quarterly. The following analyses were performed:

Iodine-1 31 Milk samples from all locations were analyzed for concentrations of 1-131 (Tables C-VII.1, Appendix C). All results were less than the MDC for 1-131. All results were less than MDC-for 1-131 and all required LLDs were met.

Gamma Spectrometrv Each milk sample from locations J, R, S, U and V was analyzed for concentrations of gamma emitting nuclides (Table C-VII.2, Appendix C).

Naturally occurring K-40 was found in all samples and ranged from 1,050 to 1,626 pCi/l. All other nuclides were less than the MDC and all required LLDs were met. Comparison of the 2012 Cs-i 37 milk data with previous years data indicate no effects from the operation of PBAPS (Figure C-6, Appendix C).

b.

Food Products Food product samples were collected at three locations (1 Q, 2B and 55) when available. Of these locations, 1Q and 55 could be affected by Peach Bottom's effluent releases. The following analysis was performed:

12-

Gamma Spectrometry Each food product sample from locations 1Q, 2B and 55 was analyzed for concentrations of gamma emitting nuclides (Table C-VIII.1, Appendix C).

Naturally occurring Be-7 activity was found in 24 of 37 samples and ranged from 77 to 3,954 pCi/kg wet. Potassium-40 activity was found in all samples and ranged from 2,025 to 12,290 pCi/kg wet. All other nuclides were less than the MDC.

C.

Ambient Gamma Radiation Beginning in 2012, Exelon changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimetry (OSLD) were deployed and Thermo-luminescent Dosimetry (TLD) were discontinued. This change may result in a step change in readings, up or down, depending on site characteristics. The relative comparison to control locations remains valid. OSLD technology is different than that used in a TLD but has the same purpose (to measure direct radiation). Results of OSLD measurements are listed in Tables C-IX.1 through CI-X.3 and Figure C-7, Appendix C.

All OSLD measurements were below 10 mR per standard month, with a range of -0.3 to 6.5 mR per standard month. A comparison of the Site Boundary and Intermediate Distance data to the Control locations data indicate that the ambient gamma radiation levels from the Control locations 16, 18, 19 and 24 were essentially the same as the other locations. The historical ambient gamma radiation data from the Control locations was plotted along with similar data from the Site and the Intermediate Distance locations (Figure C-7, Appendix C).

D.

Independent Spent Fuel Storage Installation (ISFSI)

The Independent Spent Fuel Storage Installation (ISFSI) was utilized beginning June 2000. During 2012, a total of 5 TN-68 casks, each loaded with 68 fuel bundles, were added to the ISFSI pad. Onsite location 1 R, which is located on the hillside overlooking the ISFSI showed a general increase of 1 to 2 mR per standard month from pre-ISFSI loading (Figure C-8, Appendix C) for the period of 2000 to about 2007. A general decrease has been observed, however, for the period of 2007 to the present.

Location 2B, which represents the nearest residence, showed a small effect in dose rate from the ISFSI pad. Data from location 2B is used to demonstrate compliance to both 40CFR190 and 10CFR72.104 limits. The large reduction in multiple direct radiation locations for 2012 is a result of the difference in technology used for radiation measurement (from TLD to OSLD).

E.

Land Use Census A Land Use Survey conducted during the 2012 growing season around the Peach Bottom Atomic Power Station (PBAPS) was performed by Normandeau Associates, Inc., NAI Environmental Services Division for Exelon Nuclear to comply with Section 3.8.E.2 of PBAPS's Offsite Dose Calculation Manual Specifications (ODCMS) and Bases. The purpose of the survey was to document the nearest milk producing animal in each of the sixteen meteorological sectors out to five miles. In addition, the nearest residence and garden of >500 square feet were documented. The distance and direction of all locations were positioned using Global Positioning System (GPS) technology. The results of this survey are summarized below. There were no changes in the nearest residence, garden or milk farms from the previous year.

Distance in Miles from the PBAPS Reactor Buildings Sector Residence Garden Milk Farm Feet Feet Feet 1

N 12,522 14,736 14,450 2

NNE 11,142 11,041 10,843 3

NE 10,080 10,080 10,492 4

ENE 10,524 12,417 10,925 5

E 10,369 14,471 14,540 6

ESE 16,085 20,430 20,210 7

SE 19,412 19,412 19,176 8

SSE 3,918 3,918 9

S 5,515 5,515 10 SSW 6,365 8,167 11,602 11 SW 4,771 4,837 4,860 12 WSW 4,041 18,887 13 W

5,242 5,242 5,136 14 WNW 2,903 4,192 22,068 15 NW 2,930 9,427 9,427 16 NNW 5,093 F.

Errata Data Please see Appendix F for Errata data 2012.

G.

Summary of Results - Inter-Laboratory Comparison Program The primary and secondary laboratories analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, food products and water matrices (Appendix E). The PE samples, supplied by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and DOE's Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against the following pre-set acceptance criteria:

1.

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

2.

ERA Evaluation Criteria The Environmental Resource Associates' evaluation report provides an acceptance range for control and warning limits with associated flag values. The Environmental Resource Associates' acceptance limits are established per the United States Environmental Protection Agency (USEPA), National Environmental Laboratory Accreditation Conference (NELAC),

state specific performance testing program requirements or ERA's standard operating procedure 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.

For the TBE laboratory, 12 out of 18 analytes met the specified acceptance criteria. Six analytes (Co-60, Gross Alpha, Gross Beta, Sr-89, Sr-90 and Zn-65) did not meet the specified acceptance criteria for the following reason:

1.

Teledyne Brown Engineering's MAPEP March 2012 Co-60 in soil result of 7.61 Bq/kg was higher than the known value of 1.56 Bq/kg, resulting in a found to known ratio of 4.88 on a sensitivity evaluation. NCR 12-08 was initiated to investigate this failure. No cause could be found for the failure. TBE is monitoring the Co-60 in soil analyses on a case-to-case basis.

2.

Teledyne Brown Engineering's MAPEP March 2012 Zn-65 in AP result of 4.19 Bq/sample was higher than the known value of 2.99 Bq/sample, exceeding the upper control limit of 3.89 Bq/sample.

NCR 12-08 was initiated to investigate this failure. No cause could be found for the failure and is considered an anomaly specific to the MAPEP sample. The first and second quarter 2012 Analytics AP Zn-65 analyses were acceptable.

3.

Teledyne Brown Engineering's MAPEP September 2012 Sr-90 in water result of 19.6 pCi/L was higher than the known value of 12.2 pCi/L, exceeding the upper control limit of 15.9 pCi/L. NCR 12-11 was initiated to investigate this failure. An incorrect aliquot was entered into LIMS. Using the correct aliquot, the result would have fallen within the acceptance range.

4.

Teledyne Brown Engineering's ERA May 2012 Gross Alpha in water result of 82.4 pCi/L was higher than the known value of 62.9 pCi/L, which exceeded the upper control limit of 78.0 pCi/L. NCR 12-05 was initiated to investigate this failure. The G-1 detector is slightly biased high for Th-230 based measurements. The G-1 detector is used only for ERA samples. The detector was recalibrated.

5.

Teledyne Brown Engineering's ERA November 2012 Gross Beta in water result of 59.3 pCi/L was higher than the known value of 39.2 pCi/L, which exceeded the upper control limit of 46.7 pCi/L. NCR 12-13 was initiated to investigate this failure. The rerun result of 44.8 fell within the control limits. It appears an incorrect aliquot was entered into LIMS.

6.

Teledyne Brown Engineering's ERA November 2012 Sr-89 in water result of 46.5 pCi/L was higher than the known value of 39.1 pCi/L, which exceeded the upper control limit of 46.1 pCi/L. NCR 12-13 was initiated to investigate this failure. The found to known ratio was 1.19, which TBE considers acceptable with warning.

For the EIML laboratory, 12 out of 14 analytes met the specified acceptance criteria. Two analytes (Gross Beta and Co-57) did not meet the specified acceptance criteria for the following reason:

1.

Environmental Inc., Midwest Laboratory's ERA April 2012 Gross Beta in water result of 76.2 pCi/L was higher than the known value of 44.2 pCi/L, exceeding the upper control limit of 51.5 pCi/L. The rerun result of 38.3 fell within the control limits. A sample dilution problem is suspected.

2.

Environmental Inc., Midwest Laboratory's MAPEP August 2012 Co-57 in vegetation result of 7.44 pCi/L was higher than the known value of 5.66 pCi/L, exceeding the upper control limit of 7.36 pCi/L.

The recount result of 6.74 fell within the control limits. The sample was recounted using a geometry more closely matched to the MAPEP sample size.

The Inter-Laboratory Comparison Program provides evidence of "in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.

V.

References 1.

Preoperational Environs Radioactivity Survey Summary Report, March 1960 through January 1966. (September 1967).

2.

Interex Corporation, Peach Bottom Atomic Power Station Regional Environs Radiation Monitoring Program Preoperational Summary Report, Units 2 and 3, 5 February 1966 through 8 August 1973, June 1977, Natick, Massachusetts.

3.

Radiation Management Corporation Publication, Peach Bottom Atomic Power Station Preoperational Radiological Monitoring Report for Unit 2 and 3, January 1974, Philadelphia, Pennsylvania.

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 H-3 8

200

<LLD

<LLD 0

(PCI/LITER) 1-131 24 24 GAMMA MN-54 CO-58 FE-59 CO-60 ZN-65 NB-95 ZR-95 1

<LLD 15

<LLD 15

<LLD 30

<LLD 15

<LLD 30

<LLD 15

<LLD 30

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD 0

0 0

0 0

0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 is

<LLD

<LLD 0

(PCI/LITER)

CS-134 CS-137 BA-140 LA-140 is

<LLD 18

<LLD 60

<LLD 15

<LLD 4

3.1 (18/24)

(1.7/6.0) 200

<LLD 1

<LLD 15

<LLD

<LLD

<LLD

<LLD

<LLD 0

0 0

DRINKING WATER (PCI/LITER)

GR-B H-3 1-131 36 12 36 36 2.9 (10/12)

(1.5/4.7) 3.2 (9/12)

(1.7/6.0) 13B INDICATOR 0

CHESTER WATER AUTHORITY SUSQUEHANNA PUMPING STATION 13306 FEET ESE

<LLD

<LLD 0

0 GAMMA MN-54

<LLD THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 INDICATOR CONTROL LOCATION WITH HUGHEST 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 CO-58 15

<LLD

<LLD 0

(PCI/LITER)

FE-59 CO-60 ZN-65 NB-95 ZR-95 1-131 CS-134 CS-137 30

<LLD 15

<LLD 30

<LLD 15

<LLD 30

<LLD 15

<LLD 15

<LLD 18

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD 0

0 0

0 0

0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 BA-140 60

<LLD

<LLD 0

(PCI/LITER)

LA-140 15

<LLD

<LLD 0

BOTTOM FEEDER (PCI/KG WET)

GAMMA 4

K-40 NA 3162.5 (2/2)

(2715/3610) 3702 (2/2)

(2996/4408) 3702 (2/2)

(2996/4408) 6 CONTROL HOLTWOOD POND 57347 FEET NW MN-54 CO-58 FE-59 CO-60 ZN-65 130

<LLD 130

<LLD 260

<LLD 130

<LLD 260

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD 0

0 0

0 0

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 BOTTOM FEEDER CS-134 130

<LLD

<LLD 0

(PCIOKG WET)

PREDATOR (PCI/KG WET)

¢Ji CS-137 GAMMA K.40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 150

<LLD

<LLD 4

NA 3937 (2/2)

(3912/3962) 4568 (2/2)

(4116/5020) 4568 (2/2)

(4116/5020) 6 CONTROL HOLTWOOD POND 57347 FEET NW 130

<LLD 130

<LLD 260

<LLD 130

<LLD 260

<LLD 130

<LLD 0

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD 0

0 0

0 0

0 0

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 PREDATOR CS-137 150

<LLD

<LLD 0

(PCI/KG WET)

SEDIMENT (PCI/KG DRY)

GAMMA K-40 6

MN-54 CO-58 CO-60 CS-134 CS-137 NA 16323 (4/4)

(11630/19110)

NA

<LLD NA

<LLD NA

<LLD 150

<LLD 180 164 (1/4) 10 18 (260/264)

(6/38) 8625 (2/2)

(8508/8742) 17835 (2/2)

(16560/19110) 4T INDICATOR 0

CONOWINGO POND NEAR CONOWINGO DAM 41818 FEET SE

<LLD

<LLD

<LLD

<LLD

<LLD 0

0 0

0 164 (1/2) 4T INDICATOR 0

CONOWINGO POND NEAR CONOWINGO DAM 41818 FEET SE AIR PARTICULATE (E-3 PCI/CU.METER)

GR-B 264 NA 19 (52/53)

(8/38)

IZ INDICATOR WEATHER STATION #1 1396 FEET SE 0

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 20 (E-3 PCI/CU.METER)

BE-7 MN-54 CO-58 CO-60 CS-134 CS-137 GAMMA 1-131 NA 71.8 (19/20)

(36.2/99.6)

NA

<LLD NA

<LLD NA

<LLD 50

<LLD 60

<LLD NA NA NA NA NA NA 72.7 (4/4)

(60.0/94.3)

IC INDICATOR PEACH BOTTOM SOUTH SUB STATION 4513 FEET SSE 0

0 0

0 0

0 AIR IODINE (E-3 PCI/CU.METER) 264 129 70

<LLD I

<LLD NA 0

0 MILK (PCIfLITER) 1-131

<LLD THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 GAMMA 129 (PCI/LITER)

K-40 CS-134 CS-137 BA-140 LA-140 GAMMA BE-7 NA 1303 (100/100)

(1050/1626) 1258 (29/29)

(1092/1442) 1387 (4/4)

(1332/1442)

C CONTROL 5037 FEET NW 15

<LLD 18

<LLD 60

<LLD 15

<LLD

<LLD

<LLD

<LLD

<LLD 0

0 0

0 VEGETATION (PCI/KG WET) 37 NA 722.7 (15/24)

(177/3954)

NA 4445.6 (24/24)

(2025/10270) 425.1 (9/13)

(76.6/919.2) 6372.2 (13/13)

(2644/12290) 984.6 (7/12)

(311.4/3954) 6372.2 (13/13)

(2644/12290)

IQ INDICATOR 3274 FEET SE 55 CONTROL NE SECTOR 52272 FEET NE 0

K-40 MN-54 NA

<LLD

<LLD 0

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING BOTH THE MDAs AND 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 PEACH BOTTOM ATOMIC POWER STATION, 2012 Name of Facility: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 2012 Location of Facility: YORK COUNTY PA REPORTING PERIOD:

2012 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 CO-58 NA

<LLD

<LLD 0

(PCI/KG WET)

CO-60 1-131 CS-134 CS-137 NA

<LLD 60

<LLD 60

<LLD 80

<LLD NA 3.3 (171/171)

(-.3/6.5)

NA 5.4 (43/43)

(3.1/7.5)

<LLD

<LLD

<LLD

<LLD 0

0 0

0 DIRECT RADIATION OSLD-QUARTERLY (MILLI-ROENTGEN/STD.MO.)

187 3

(16/16)

(1.5/4.6) 5.5 (4/4)

(4.6/5.9) 5.9 (4/4)

(5.3/6.5)

IR INDICATOR TRANSMISSION LINE HILL 2798 FEET SSE IR INDICATOR TRANSMISSION LINE HILL 2798 FEET SSE TLD-QUARTERLY 47 7.5 (1/1)

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

APPENDIX B SAMPLE DESIGNATION AND LOCATIONS

Intentionally left blank

TABLE B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2012 Location Location Description Distance & Direction from Site A.

Surface Water 1LL 1MM Peach Bottom Units 2 and 3 Intake - Composite (Control)

Peach Bottom Canal Discharge -Composite B.

Drinking (Potable) Water 1,256 feet NE 5,470 feet SE 45,721 feet SE 30,337 feet NW 13,306 feet ESE 4L 61 13B Conowingo Dam EL 33' MSL - Composite Holtwood Dam Hydroelectric Station - Composite (Control)

Chester Water Authority (CWA) Susquehanna Pumping Station-Composite C.

Precipitation 1A 1B 4M D.

Fish 4

6 Conowingo Pond Holtwood Pond (Control)

E.

Sediment 4J 4T 6F Conowingo Pond near Berkin's Run Conowingo Pond near Conowingo Dam Holtwood Dam (Control)

C A;

0

.4:

1 #

A; I A; r

I.

a r-MalLl.UlC -

1IU II, 1B 1z 1A 1C 3A 5H2 Weather Station #2 Weather Station #1 Weather Station #1 Peach Bottom South Sub Station Delta, PA - Substation Manor Substation (Control) 1,396 feet SE 2,587 feet NW 45,989 feet SE 7,162 feet SE 57,347 feet NW 7,346 feet SE 41,818 feet SE 31,469 feet NW 2,587 feet NW 1,396 feet SE 1,396 feet SE 4,513 feet SSE 19,144 feet SW 162,565 feet NE 5,119 feet W 4,694 feet WSW 19,061 feet SE 11,414 feet SSW 34,584 feet W 5,037 feet NW 18,533 feet NE G.

Milk - bi-weekly / monthly J

R S

U V

H.

Milk - quarterly (Control)

(Control)

C D

B-1

TABLE B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2012 Location Location Description Distance & Direction from Site H.

Milk - quarterly (cont'd)

E L

P W

(Control) 46,147 feet N 11,194 feet NE 10,982 feet ENE 89,232 feet S 4,171 feet NW 3,854 feet SSE 52,272 feet NE I.

Food Products - monthly when available 1Q 2B 55 (Control)

J.

Environmental Dosimetry - OSLD Site Boundary 1L 1P IA 1Q ID 2

2B 1M 1R 11 lC ic 1J 1K IF 40 1NN 1H 1G 1B 1E Peach Bottom Unit 3 Intake Tower B & C Fence Weather Station #1 Tower D & E Fence 140 0 Sector Peach Bottom 1300 Sector Hill Burk Property Discharge Transmission Line Hill Peach Bottom South Substation Peach Bottom South Substation Peach Bottom 1800 Sector Hill Peach Bottom Site Area Peach Bottom 2000 Sector Hill Peach Bottom Site Area Peach Bottom Site Peach Bottom 2700 Sector Hill Peach Bottom North Substation Weather Station #2 Peach Bottom 350' Sector Hill Wakefield, PA Silver Spring Rd Eagle Road Goshen Mill Rd Slate Hill Rd PB-Keeney Line Peters Creek Riverview Rd Eckman Rd Conowingo Dam Power House Roof Peach Bottom 1500 Sector Hill N. Cooper Road Macton Substation 1,256 feet NE 2,112 feet ESE 1,396 feet SE 3,274 feet SE 3,538 feet SE 4,661 feet SE 3,749 feet SSE 5,438 feet SE 2,798 feet SSE 2,851 feet SSE 4,513 feet SSE 3,755 feet S 4,604 feet SW 2,707 feet SSW 7,709 feet SW 2,547 feet WSW 3,104 feet W 3,173 feet WNW 2,587 feet NW 3,136 feet NNW 24,499 feet E 19,449 feet N 13,230 feet NNE 27,480 feet NE 15,213 feet ENE 18,524 feet ENE 10,397 feet E 21,966 feet ESE 24,105 feet SE 45,721 feet SE 5,276 feet SSE 13,859 feet S 26,347 feet SSW Intermediate Distance 5

15 22 44 32 45 14 17 31A 4K 23 27 48 B-2

TABLE B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2012 Location Location Description Distance & Direction from Site J.

Environmental Dosimetry - OSLD (cont'd)

Intermediate Distance (cont'd) 3A 49 50 51 26 6B 42 43 46 47 Delta, PA Substation PB-Conastone Line TRANSCO Pumping Station Fin Substation Slab Road Holtwood Dam Power House Roof Muddy Run Environ. Laboratory Drumore Township School Broad Creek Broad Creek Scout Camp Nottingham, PA Substation (Control)

Harrisville, MD Substation (Control)

Fawn Grove, PA (Control)

Red Lion, PA (Control) 19,114 feet SW 20,673 feet WSW 25,677 feet W 20,511 feet WNW 22,093 feet NW 30,538 feet NW 21,954 feet NNW 26,931 feet NNE 23,483 feet SSE 22,153 feet S 67,788 feet E 58,048 feet ESE 51,413 feet W 106,354 feet WNW Control 16 24 18 19 B-3

TABLE B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2012 Sample Analysis Sampling Method Collection Procedure Number Sample Size Analytical Procedure Number Medium Surface Gamma Monthly composite NAI-ER15 Collection of water 2 gallon TBE, TBE-2007 Gamma emitting radioisotope Water Spectroscopy from a continuous samples for radiological analysis analysis water compositor.

(Peach Bottom Atomic Power Station)

Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Surface Tritium Quarterly NAI-ER15 Collection of water 500 ml TBE, TBE-2010 Tritium and carbon-14 analysis Water composite from a samples for radiological analysis by liquid scintillation continuous water (Peach Bottom Atomic Power Station) compositor.

Env. Inc., T-02 Determination of tritium in water (direct method)

Surface 1-131 Monthly composite NAI-ER15 Collection of water 2 gallon TBE, TBE-2012 Radioiodine in various matrices Water from a continuous samples for radiological analysis water compositor.

(Peach Bottom Atomic Power Station)

Env. Inc., 1-131-01 Determination of 1-131 in water by an ion exchange Drinking Gross Beta Monthly composite NAI-ER15 Collection of water 2 gallon TBE, TBE-2008 Gross alpha and/or gross beta Water from a continuous samples for radiological analysis activity in various matrices water compositor.

(Peach Bottom Atomic Power Station)

Env. Inc., W(DS)-01 Determination of gross alpha and/or gross beta in water (dissolved solids or total residue)

Drinking 1-131 Monthly composite NAI-ER15 Collection of water 2 gallon TBE, TBE-2031 Radioiodine in drinking water Water from a continuous samples for radiological analysis water compositor.

(Peach Bottom Atomic Power Station)

Env. Inc., 1-131-01 Determination of 1-131 in water by an ion exchange Drinking Gamma Monthly composite NAI-ER15 Collection of water 2 gallon TBE, TBE-2007 Gamma emitting radioisotope Water Spectroscopy from a continuous samples for radiological analysis analysis water compositor.

(Peach Bottom Atomic Power Station)

Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Drinking Tritium Quarterly NAI-ER15 Collection of water 500 ml TBE, TBE-2010 Tritium and carbon-14 analysis Water composite from a samples for radiological analysis by liquid scintillation continuous water (Peach Bottom Atomic Power Station) compositor.

Env. Inc., T-02 Determination of tritium in water (direct method)

Fish Gamma Semi-annual NAI-ER3 Collection of fish samples 1000 grams TBE, TBE-2007 Gamma emitting radioisotope Spectroscopy samples collected for radiological analysis (Peach (wet) analysis via electroshocking Bottom Atomic Power Station) or other techniques Sediment Gamma Semi-annual grab NAI-ER2 Collection of sediment 500 grams (dry)

TBE, TBE-2007 Gamma emitting radioisotope Spectroscopy samples samples for radiological analysis analysis I_

_(Peach Bottom Atomic Power Station) I

_I

TABLE B-2 Radiological Environmental Monitoring Power Station, 2012 Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Sample Analysis Sampling Method Collection Procedure Number Sample Size Analytical Procedure Number Medium Air Gross Beta One-week NAI-ER16 Collection of air particulate 1 filter TBE, TBE-2008 Gross alpha and/or gross beta Particulates composite of and air iodine samples for (approximately activity in various matrices continuous air radiological analysis (Peach Bottom 280 cubic meters sampling through Atomic Power Station) weekly)

Env. Inc., AP-02 Determination of gross alpha glass fiber filter and/or gross beta in air particulate filters paper Air Gamma Quarterly TBE, TBE-2023 Compositing of 13 filters TBE, TBE-2007 Gamma emitting radioisotope Particulates Spectroscopy composite of each samples (approximately analysis station 3600 cubic Env. Inc., AP-03 Procedure for meters)

Env. Inc., GS-01 Determination of gamma compositing air particulate filters for emitters by gamma spectroscopy gamma spectroscopic analysis Air Iodine Gamma One-week NAI-ER8 Collection of air particulate 1 filter TBE, TBE-2007 Gamma emitting radioisotope Spectroscopy composite of and air iodine samples for (approximately analysis continuous air radiological analysis (Peach Bottom 280 cubic meters sampling through Atomic Power Station) weekly)

Env. Inc., 1-131-02 Determination of 1-131 in charcoal filter charcoal canisters by gamma spectroscopy (batch method)

Milk 1-131 Bi-weekly grab NAI-ER10 Collection of milk samples 2 gallon TBE, TBE-2012 Radioiodine in various sample when cows for radiological analysis (Peach matrices are on pasture.

Bottom Atomic Power Station)

Monthly all other Env. Inc., 1-131-01 Determination of 1-131 in times milk by an ion exchange Milk Gamma Bi-weekly grab NAI-ER10 Collection of milk samples 2 gallon TBE, TBE-2007 Gamma emitting radioisotope Spectroscopy sample when cows for radiological analysis (Peach analysis are on pasture.

Bottom Atomic Power Station)

Monthly all other Env. Inc., GS-01 Determination of gamma times emitters by gamma spectroscopy Food Gamma Monthly when NAI-ER12 Collection of vegetation 1000 grams TBE, TBE-2007 Gamma emitting radioisotope Products Spectroscopy available samples for radiological analysis analysis (Peach Bottom Atomic Power Station)

Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy OSLD Optically Stimulated Quarterly OSLDs NAI-ER9 Collection of OSLD 2 dosimeters Landauer Incorporated Luminescence comprised of two samples for radiological analysis Dosimetry A120 3:C Landauer (Peach Bottom Atomic Power Incorporated Station) elements._________________

E

,W ss'

• ._*.M:

/_*

's o.wy 5r A J 4 40 Figure B-1 Environmental Sampling Locations Within One Mile of the Peach Bottom Atomic Power Station, 2012 B-6

Figure B-2 Environmental Sampling Locations Between One and Approximately Five Miles of the Peach Bottom Atomic Power Station, 2012 B]-7

Figure B-3 Environmental Sampling Locations Greater Than Five Miles from the Peach Bottom Atomic Power Station, 2012 B-8

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY

TABLE C-I.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 12/28/11 - 03/28/12 03/28/12 - 06/27/12 06/27/12 - 09/26/12 09/26/12 -

1/2/2013 1LL 1MM

< 188

< 189

< 156

< 186

< 183

< 186

< 159

< 181 MEAN Table C-I.2 CONCENTRATIONS OF 1-131 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 1LL 1MM 12/28/11 -

02/01/12 02/01/12 -

02/29/12 -

03/28/12 -

05/02/12 -

05/30/12 -

06/27/12 -

08/01/12 -

08/29/12 -

09/26/12 -

10/31/12 -

11/28/12 -

02/29/12 03/28/12 05/02/12 05/30/12 06/27/12 08/01/12 08/29/12 09/26/12 10/31/12 11/28/12 01/02/13

< 0.6

< 0.5

< 0.3

< 0.5

< 0.6

< 0.7

< 0.6

< 0.5

< 0.7

< 0.8

< 0.9

< 0.6

< 0.48

< 0.58

< 0.24

< 0.48

< 0.57

< 0.74

< 0.54

< 0.56

< 0.71

< 0.81

< 0.84

< 0.57 MEAN C-1

TABLE C-I.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION PERIOD 1LL 12/28/11 - 02/01/12 02/01/12 - 02/29112 02/29/12 - 03/28/12 03/28/12 - 05/02/12 05/02/12 - 05/30/12 05/30/12 - 06/27/12 06/27/12 - 08/01/12 08/01/12 - 08/29/12 08/29/12 - 09/26/12 09/26/12 - 10/31/12 10/31/12 - 11/28/12 11/28/12 - 01/02/13 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 MEAN

<6

<3

<3

<5

<4

<3

<4

<4

<3

<5

<6

<5

<6

<4

<3

<5

<6

<3

<6

<4

<3

<4

<5

<4

<7

<4

<3

<6

<5

<4

<5

<5

<3

<5

<6

<5

<6

<5

<3

<7

<7

<3

<6

<4

<3

<5

<6

<6

< 14

<7

<7

<10

<9

<8

<9

<9

<6 11

<11

<11

<8

< 10

<6

• 14

<15

<8

< 15

<8

<7

< 10

< 11

<13

<5

<3

<3

<7

<5

<3

<5

<6

<3

<4

<4

<4

< 14

<7

<6

<11

<9

<7

<8

<8

<5

<8

< 13

<8

< 10

<8

<5

<11

<9

<7

< 11

<7

<5

<8

< 10

<11

<7

<4

<3

<5

<5

<4

<5

<5

<3

<5

<5

<6

<5

<4

<3

<6

<7

<4

<7

<4

<3

<5

<6

<6

< 12

<6

<5

< 10

<8

<7

<7

<8

<5

<8

< 10

<9

<7

<8

<5

< 11

<9

<7

< 11

<7

<5

<8

< 11

<9

< 14

<10

<8

<1

<9

< 13

<9

< 11

< 13

• 15

• 10

< 15

< 11

< 10

<7

<0

< 11

< 12

< 13

< 11

< 14

< 15

< 10

• 14

<5

<3

<3

<6

<4

<3

<4

<4

<3

<4

<5

<4

<4

<3

<2

<4

<6

<3

<6

<4

<3

<4

<5

<4

<7

<4

<3

<6

<4

<3

<4

<5

<3

<5

<7

<5

<7

<4

<3

<6

<6

<4

<6

<4

<3

<4

<6

<5

< 32

< 26

< 18

< 41

< 22

< 26

< 24

< 27

< 25

< 33

< 29

• 32

< 24

< 24

< 18

< 38

< 33

< 28

<34

< 23

<24

< 27

< 26

< 33

< 11

<7

<7

< 11

<5

<9

<7

<12

<9

<9

<11

<11

<6

< 10

<6

< 11

<8

<9

<11

<4

<7

< 10

<8

<9 1MM 12/28/11 - 02/01/12 02/01/12 - 02/29/12 02/29/12 - 03/28/12 03/28/12 - 05/02/12 05/02/12 - 05/30/12 05/30/12 - 06/27/12 06/27/12 - 08/01/12 08/01/12 - 08/29/12 08/29/12 - 09/26/12 09/26/12 - 10/31/12 10/31/12 - 11/28/12 11/28/12 - 01/02/13

<4

<5

<2

<6

<7

<3

<5

<4

<3

<5

<6

<5 MEAN

TABLE C-I1.1 CONCENTRATIONS OF GROSS BETA IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 01/03/12 - 01/30/

02/07/12 - 02/27/

03/05/12 - 03/27/

04/03/12 - 04/30/

05/07/12 - 05/30/

06/04/12 - 06/26/

07/02/12 - 07/30/

08/07/12 - 08/28/

09/04/12 - 09/26/

10/01/12 - 10/29/

11/07/12 - 11/27/

12/03/12 - 12/31/

13B 4L 61 12 12 12 12 12 12 12 12 12 12 12 12

< 2.1 2.3 +/- 1.4 4.2 +/- 1.9

< 1.7 2.1 +/- 1.0 2.0 +/- 1.0 1.7 +/- 1.0

< 2.2 2.5 +/- 1.1 3.0 +/- 1.1 6.0 +/- 1.2 5.0 +/- 1.2

• 2.0 3.9 +/- 1.4

< 2.6

< 1.7 2.9 +/- 1.0 2.4 +/- 1.0 1.7 +/- 1.0 2.3 +/- 1.3 4.7 +/- 1.8 3.5 +/- 1.8

< 1.7 1.5 +/-

2.5 +/-

2.9 +/-

0.9 1.0 1.0 3.1 +/-

4.2 +/-

4.5 +/-

3.2 +/-

1.9 +/-

1.5 1.2 1.1 1.1 1.0

< 2.2 4.0 +/- 1.1 3.2 +/- 1.1 2.8 +/- 1.0 2.2 +/- 1.0 MEAN 3.2 +/- 3.0 3.1 +/- 2.0 2.9 +/- 1.9 TABLE C-11.2 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 01/03/12 - 03/27/12 04/03/12 - 06/26/12 07/02/12 - 09/26/12 10/01/12 -

12/31/12 13B 4L 61 186 185 168 168

< 184

< 184

< 169

< 185

< 181

< 186

< 157

< 183 MEAN TABLE C-11.3 CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 01/03/12 - 01/30/12 02/07/12 - 02/27/12 03/05/12 - 03/27/12 04/03/12 - 04/30/12 05/07/12 - 05/30/12 06/04/12 - 06/26/12 07/02/12 - 07/30/12 08/07/12 - 08/28/12 09/04/12 - 09/26/12 10/01/12 -

10/29/12 11/07/12 -

11/27/12 12/03/12 -

12/31/12 13B 4L 61

< 0.6

< 0.3

< 0.4

< 0.5

< 0.7

< 0.8

< 0.7

< 0.6

< 0.8

< 0.8

< 0.7

< 0.7

< 0.5

< 0.5

< 0.3

< 0.5

< 0.5

< 0.6

< 0.5

< 0.6

< 0.8

< 0.7

< 0.6

< 0.5

< 0.6

< 0.5

< 0.3

< 0.4

< 0.5

< 0.8

< 0.5

< 0.5

< 0.8

< 0.7

< 0.7

< 0.5 MEAN

• THE MEAN AND TWO STANDARD DEVIAITON ARE CALCULATED USING THE POSITIVE VALUES C-3

TABLE C-II.4 CONCENTRATIONS OF GAMMA EMITTER IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 13B 01/03112 02/07/12 03/05/12 04/03/12 05/07/12 06/04/12 07/02/12 08/07/12 09/04/12 10/01/12 11/07/12 12/03/12 MEAN 4L 12/29/11 02/02/12 03/01/12 03/29/12 05/03/12 05131/12 06/28/12 08/02/12 08/30/12 09/27/12 11101/12 11129/12

" UII3UII

- 02/27/12

- 03/27/12

- 04/30/12

- 05/30/12

- 06/26/12

- 07/30/12

- 08/28/12

- 09/26/12

- 10/29/12

- 11/27/12

- 12/31/12

- 02/02/12

- 03/01/12

- 03/29/12

- 05/03/12

- 05/31/12

- 06/28/12

- 08/02/12

- 08/30/12

- 09/27/12

- 11/01/12

- 11/29/12

- 01/03/13

<4

<2

<4

<5

<3

<4

<4

<4

<3

<5

<4

<4

<3

<3

<6

<4

<3

<6

<5

<4

<4

<4

<5

<5

<2

<5

<6

<3

<5

<3

<4

<4

<5

<4

<5

<4

<3

<7

<4

<3

<7

<4

<5

<4

<5

<4 IO

<11

<5

<9

< 14

<7

< 12

<8

<7

<8

< 12

<7

< 10

<9

<6

< 10

<6

<8

• 15

< 10

<8

<7

<7

<9

<5

<2

<5

<6

<2

<6

<4

<4

<3

<6

<4 14

<9

<4

<8

<11

<6

<10

<8

<7

<8

< 12

<7

<9

<8

<6

< 12

<4

<6

< 15

< 10

<8

<9

<6

<9

<5

<3

<5

<6

<3

<6

<4

<4

<4

<5

<4

<5

<4

<3

<7

<4

<4

<7

<5

<5

<5

<4

<4 IU

<8

<5

<10

<9

<6

<9

<8

<7

<6

<10

<7

<7

<8

<5

< 12

<7

<6

< 14

<7

<8

<8

<7

<9

<- 13

< 14

<7

<1

< 15

<13

< 13

<13

< 15

<11

<11

< 14

<8

< 10

<7

<0

<12

< 13

< 13

< 13

< 14

<13

<8

< 13

<4

<2

<5

<5

<3

<5

<3

<3

<3

<5

<4

<4

<4

<3

<5

<4

<3

<6

<5

<4

<3

<4

<4

<4

<2

<5

<6

<3

<6

<3

<4

<3

<6

<4

<5

<5

<3

<6

<4

<4

<7

<5

<4

<4

<4

<5

• - 35

< 33

< 17

< 41

<34

< 24

< 32

< 29

< 32

• 23

< 27

< 27

< 20

< 24

< 19

< 42

< 24

< 24

• 38

< 29

< 29

• 25

< 22

• 29 SIU

< 10

<5

< 12

< 12

<8

<11

<8

<8

<9

< 10

<6

<8

<10

<6

<15

<9

<7

<7

<9

< 12

<8

<6

< 12

<4

<4

<3

<5

<3

<3

<8

<4

<5

<4

<4

<5 MEAN

TABLE C-11.4 CONCENTRATIONS OF GAMMA EMITTER IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 61 12/29/11 - 02/02/12 2/2/2012 -

3/1/2012 3/1/2012 - 03/29/12 03/29/12 - 05/03/12 5/3/2012 - 05/31/12 05/31/12 - 06/28/12 06/28/12 - 08/02/12 08/02/12 - 08/30/12 08/30/12 - 09/27/12 09/27/12 - 11/01/12 11/01/12 - 11/29/12 11/29/12 - 01/03/13 MEAN

<4

< 3.5

<2

<7

<3

<4

<6

<4

<4

<5

<5

<4

<4

<4

<3

<8

<5

<4

<6

<4

<4

<5

<4

<4

< 10

<8

<5

<11

< 11

<10

< 12

<11

<10

< 12

< 11

<11

<5

<4

<3

<7

<5

<4

<7

<4

<4

<5

<5

<4

<8

<8

<5

<8

<9

<8

< 12

<9

< 10

< 12

<9

<11

<4

<4

<2

<7

<6

<5

<5

<6

<5

<6

<4

<6

<7

<7

<5

< 11

<7

<8

<11

<9

<7

< 10

<9

<9

<8

< 10

<6

<0

< 12

< 15

< 10

< 10

< 14

< 14

<8

< 15

<4

<3

<2

<5

<4

<4

<5

<4

<4

<5

<4

<5

<4

<4

<3

<5

<5

<4

<5

<5

<4

<5

<5

<6

< 19

< 23

< 14

< 40

< 31

< 31

• 27

< 24

< 28

< 33

• 22

< 33 7

8 5

11 10 11 7

9 10 9

7 6

TABLE C-II1.1 CONCENTRATIONS OF GAMMA EMITTERS IN PREDATOR AND BOTTOM FEEDER (FISH)

SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION PERIOD K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 4

PREDATOR 05/31/12 11/05/12 MEAN 3962 +/- 888

< 61 3912 +/- 1021

< 62

• 68

< 80

< 161

< 171

• 52

< 79

< 120

• 149

< 55

< 60

< 56

< 71 3937 +/- 71 4

BOTTOM FEEDER 05/31/12 10/18/12 MEAN 6

PREDATOR 06/18/12 10/05/12 MEAN 6

BOTTOM FEEDER 06/07/12 10/05/12 MEAN 3610 +/- 755

< 52 2715 +/- 780

< 51 3163 +/- 1266 4116 +/- 1434

< 81 5020 +/- 1086

< 70 4568 +/- 1278 4408 +/- 810.8 < 46 2996 +/- 926.5 < 57 3702 +/- 1997

< 56

< 45

< 90

< 103

< 56

< 48

< 116

< 110

< 48

< 49

< 55

< 56

< 85

< 54

< 206

< 124

< 87

< 70

< 167

< 164

< 71

< 52

< 83

< 59

< 43

< 54

< 122

< 132

< 39

< 59

< 85

< 89

< 40

< 50

< 52

< 63

• THE MEAN AND TWO STANDARD DEVIAITON ARE CALCULATED USING THE POSITIVE VALUES

TABLE C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PC/KG DRY +/-2 SIGMA K-40 Mn-54 Co-58 Co-60 Cs-134 Cs-1 37 SITE COLLECTION PERIOD

4.

06/13/12 12/04/12 MEAN Approx. 1 liter of silt 4T 06/13/12 12/04/12 MEAN Approx. 1 liter of silt 6F 06/13/12 12/04/12 17990 +/- 1398

< 50 11630 +/- 722

< 31

< 53

< 29

< 82

< 40

< 48

< 73

< 28

< 37 14810 +/- 8994 16560 +/- 1565

< 90 19110 +/- 1715

< 79 17835 +/- 3606 8742 +/- 1155

< 56 8508 +/- 860

< 38 8625 +/- 331

< 71

< 74

< 90

< 99

< 82

< 71

< 114 164

+/- 79

< 56

< 38

< 49

< 46

< 59

< 48

< 41

< 53 MEAN

• THE MEAN AND TWO STANDARD DEVIAITON ARE CALCULATED USING THE POSITIVE VALUES

TABLE C-V.1 COLLECTION PERIOD 12/29/11 - 01/05/12 01/03/12 - 01/09/12 01/05/12 - 01/12/12 01/09/12 - 01/16/12 01/12/12 - 01/19/12 01/16/12 - 01/23/12 01/19/12 - 01/26/12 01/23/12 - 01/30/12 01/26/12 - 02/02/12 01/30/12 - 02/06/12 02102/12 - 02/09/12 02/06/12 - 02/13/12 02/09/12 - 02/16/12 02/13/12 - 02/21/12 02/16/12 - 02/23/12 02/21/12 - 02/27/12 02/23/12 - 03/01/12 02/27/12 - 03/05/12 03/01/12 - 03/08/12 03/05/12 - 03/12112 03/08/12 - 03/15/12 03/12/12 - 03/19/12 03/15/12 - 03/22/12 03/19/12 - 03/26/12 03/22/12 - 03/29/12 03/26/12 - 04/02/12 03/29/12 - 04/05/12 04/02/12 - 04/09/12 04/05112 - 04/12/12 04109/12 - 04/16/12 04/12/12 - 04/19/12 04/16/12 - 04/23/12 04/19/12 - 04/26/12 04/23/12 - 04/30/12 04/26/12 - 05/03/12 04/30/12 - 05/07/12 05/03/12 - 05/10/12 05/07/12 - 05/14/12 05/10/12 - 05/17/12 05/14/12 - 05/21/12 05/17/12 - 05/23/12 05/21/12 - 05/29/12 05/23/12 - 05/31/12 05/29/12 - 06/04/12 05/31/12 - 06/07/12 06/04/12 - 06/11/12 06/07/12 - 06/14/12 06/11/12 - 06/18/12 06/14/12 - 06/21/12 06/18/12 - 06/25/12 06/21/12 - 06/28/12 06/25/12 - 07/01/12 06/28/12 - 07/05/12 07/01/12 - 07/09/12 07/05/12 - 07/12/12 07/09/12 - 07/16/12 07/12/12 - 07/19/12 07/16/12 - 07/23/12 07/19/12 - 07/26/12 07/23/12-07/30/12 GROUP I GROUP II GROUP III 16 iC 1Z 3A 5H2 20 +/- 5 21 +/- 5 22 +/- 5 20 +/- 5 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA 22 18 25 14 18 12 17 17 13 21 17 19

<7

+6

+/-5

+/-6

+5

+5

+/-6

+/-5

+/-5

+5

+5

+/-4

+6 16 +/- 6 16 +/- 5 20 +/- 5 16 +/- 5 21 +/- 5 18 +/- 6 19 +/- 5 17 +/- 5 16 +/- 5 19 +/- 5 15 +/- 4 18 +/- 6 21 +/- 6 17 +/- 5 23 +/- 6 17 +/- 5 13 +/- 5 14 +/- 6 17 +/- 5 19 +/- 5 16 +/- 5 25 +/- 5 15 +/- 4 17 +/- 6 8+/-5 12 5

15 5

14 5

17 6

12 5

18 5

16 5

16 5

15+/- 5 14:+/- 6 10 5

16 5

14 +/-6 16 5

9+/-5 16 5

13+/- 5 19 5

26 +/-6 23 +6 17 5

15 5

<7 16 16 16 17 10 14 8

11 7

19 14 19 27 22 19 16

+5

+5

+5

+/-6

+5

+5

+5

+4

+5

+5

+5

+/-5

+/-6

+5

+5

+5 17 +/- 6 15 +/- 5 17 +/- 5 18 +/- 5 18 +/- 5 12 +/- 6 19 +/- 5 20 +/- 5 15 +/- 5 26 +/- 5 14 +/- 4 18 +/- 6 8+/-5 13+/- 5 20 +/-5 14 5

17+/- 6 11 5

14+/- 5 8+/-5 13 +/-4 8+/-5 14 5

18 5

15+/- 5 22 +/-5 20 +/- 5 21 +/- 5 14 +/- 5 C-8 20 +/- 6 22 +/- 5 14 +/- 5 14 +/- 5 13 +/- 5 13 +/- 5 18 +/- 5 15 +/- 6 11 +/-5 12+/- 5 20 5

10 5

11+/- 5 8+/-5 16+/- 5 13 5

14+/- 5 12 5

13 5

8+/-4 15+/- 5 18+/- 6 12+/- 5 11 +/-5 21 +5 22 +/- 6 21 +/- 4 12 +/- 5 18 +/- 5 18 +/- 5

<8 18 10 23 13 16 27 20 21 13

+/-5

+5

+/-5

+/-5

+5

+/-6

+5

+/-5

+/-5

TABLE C-V.1 COLLECTION PERIOD 07/26/12 - 08/02/12 07/30/12 - 08/06/12 08/02/12 - 08/09/12 08/06/12 - 08/13/12 08/09/12 - 08/16/12 08/13/12 - 08/20/12 08/16/12 - 08/23/12 08/20/12 - 08/27/12 08/23/12 - 08/30/12 08/27/12 - 09/04/12 08/30/12 - 09/06/12 09/04/12 - 09/10/12 09/06/12 - 09/13/12 09/10/12 - 09/17/12 09/13/12 - 09/20/12 09/17/12 - 09/24/12 09/20/12 - 09/27/12 09/24/12 - 10/01/12 09/27/12 - 10/04/12 10/01/12 - 10/08/12 10/04/12 - 10/11/12 10/08/12 - 10/15/12 10/11/12 - 10/19/12 10/15/12 - 10/22/12 10/19/12 - 10/25/12 10/22/12 - 10/29/12 10/25/12 - 11/01/12 10/29/12 - 11/05/12 11/01/12 - 11/08/12 11/05/12 - 11/12/12 11/08/12 - 11/15/12 11/12/12 - 11/19/12 11/15/12 - 11/21/12 11/19/12 - 11/26/12 11/21/12 - 11/29/12 11/26/12 - 12/03/12 11/29/12 - 12/07/12 12/03/12 - 12/10/12 12/07/12 - 12/13/12 12/10/12 - 12/17/12 12/13/12 - 12/20/12 12/17/12 - 12/23/12 12/20/12 - 12/28/12 12/23/12 - 12/31/12 12/28/12 - 01/03/13 MEAN GROUP I GROUP II GROUP III 1B iC 1Z 3A 5H2 13 +/- 4 14 +/- 5 16 +/- 5 18 +/- 5 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA 26 +/- 5 21 +/- 5 23 +/- 5 24 +/- 5 25 +/- 5 14 +/- 5 16 +/- 5 21 +/- 5 25 +/- 5 22 +/- 5 16 +/- 5 36 +/- 7 13 +/- 5

<6 25 +/- 6 30 +/- 6 31 +/- 5 29 +/- 5 19 +/- 6 26 +/- 5 17 +/- 4 18 +/- 6

+/-5

+/-5

+/-6

+5

+/-6

+/-5

+/-5

+/-5

+5

+/-5

+5

+/-7

+/-4

+/-4

+/-6

+/-6

+/-5

+5

+/-5

+5

+4

+/-6 27 +/- 6 20 +/- 5 24 +/- 5 23 +/- 5 29 +/- 6 13 +/- 5 15 +/- 5 21 +/- 5 24 +/- 5 24 +/- 5 17 +/- 5 38 +/- 7 11 +/-4 11 +/-5 25 +/-6 29 +/-6 26 +/-5 27 +/-5 26 +/-6 27 +/-6 15+/- 4 24 +/-6 13 +/- 5 16 +/- 5 30 +/- 6 25 +/- 5 31 +/- 6 17 +/- 5 21 +/- 5 17 +/- 5 27 +/- 5 22 +/- 5 18 +/- 5 34+/-7 14 +/- 5 11 5

27 +/-6 28 +/-6 25 +/-5 23 +/-5 16+/- 6 24 +/-5 15 4

17 5

16 +/- 5 20 +/- 5 22 +/- 5 27 +/- 6 27 +/- 5 12 +/- 5 11 +/-5 8+/-5 22 5

25 +/-6 11 5

14+/- 5 28+/- 5 6+/-4 17+/- 5 19 +/- 5 25 +/- 5 29 +/- 6 13 +/- 5 26 +/- 5 14 +/- 6 14 +/- 4 19 +/- 11 18 +/- 11 19 +/- 12 18 +/- 12 16 +/- 12

• THE MEAN AND TWO STANDARD DEVIAITON ARE CALCULATED USING THE POSITIVE VALUES C-9

TABLE C-V.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA Remember: STDEV is based on all individual results - not the STDEV of the monthly averages GROUP I - ON-SITE LOCATIONS GROUP II - INTERMEDIATE DISTANCE LOCATION GROUP III - CONTROL LOCATIONS COLLECTION PERIOD MIN MAX MEAN+/-

2SD COLLECTION PERIOD MIN MAX MEAN+/-

2SD COLLECTION MIN MAX MEAN +

PERIOD 2SD 12/29/11 - 02/02/12 02/02/12 - 03/01/12 03/01/12 - 03/29/12 03/29/12 - 05/03/12 05/03/12 - 05/31/12 05/31/12 - 06/28/12 06/28/12 - 08/02/12 08/02/12 - 08/30/12 08/30/12 - 10/04/12 10/04/12 - 11/01/12 11/01/12 - 11/29/12 11/29/12 - 01/03/13 0

12/29/11 -

01/03/13 14 12 13 8

8 7

13 18 13 11 9

12 25 21 25 17 18 23 27 32 30 38 31 29 19 6

17 5

18 6

15 5

13 7

15 +/- 9 19 +/- 10 24 +/-8 20 +11 22 + 19 23 +/- 14 22 +/-10 12/29/11 - 02/02/12 02/02/12 - 03/01/12 03/01/12 - 03/29/12 03/29/12 - 05/03/12 05/03/12 - 05/31/12 05/31/12 - 06/28/12 06/28/12 - 08/02/12 08/02/12 - 08/30/12 08/30/12 - 10/04/12 10/04/12 - 11/01/12 11/01/12 - 11/29/12 11/29/12 - 01/03/13 15 12 14 8

8 8

14 13 17 14 11 15 20 20 26 20 14 18 22 30 31 34 28 24 17 +/- 4 17 +/- 7 18 +/- 11 14 +/- 9 12 +/- 5 14 +/- 8 19 +/- 6 21 +/- 15 23 +/- 13 22 +/- 18 23 +/- 16 19 +/- 8 01/03/12 - 01/30/12 01/30/12 - 02/27/12 02/27112 - 04/02/12 04/02/12 - 04/30/12 04/30/12 - 05/29/12 05/29/12 - 07/01/12 07/01/12 - 07/30/12 07/30/12 - 09/04/12 09/04/12 - 10/01/12 10/01/12 - 10/29/12 10/29/12 - 12/03/12 12/03/12 - 12/31/12 14 13 10 8

8 11 12 16 8

11 6

13 22 18 20 16 15 22 21 27 22 28 29 26 17 +/- 9 15 +/- 5 13 +/- 8 12 +/- 7 12 +/- 6 17 +/- 10 17 +/- 8 22 +/- 10 13 +/- 12 20 +/- 17 19 +/- 18 17 +/- 12 7

38 19 +/- 12 12/29/11 -

01/03/13 8

34 18 +/- 12 01/03/12 -

12/31/12 6

29 16 +/- 12

• THE MEAN AND TWO STANDARD DEVIAITON ARE CALCULATED USING THE POSITIVE VALUES

TABLE C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA Be-7 Mn-54 Co-58 Co-60 Cs-1 34 Cs-1 37 SITE COLLECTION PFRIC)D PERIOD 1B 12/29/11 03/29/12 06/28/12 09/27/12 MEAN 1C 12/29/11 03/29/12 06/28/12 09/27/12 MEAN 1Z 12/29/11 03/29/12 06/28/12 09/27/12 MEAN 3A 12/29/11 03/29/12 06/28/12 09/27/12

- 03/29/12

- 06/28/12

- 09/27/12

- 01/03/13

- 03/29/12

- 06/28/12

- 09/27/12

- 01/03/13

- 03/29/12

- 06/28/12

- 09/27/12

- 01/03/13

- 03/29/12

- 06/28/12

- 09/27/12

- 01/03/13

- 04/02/12

- 07/01/12

- 10/01/12

- 12/31/12

< 23 97 +/- 27 82 +/- 29 36 +/- 22 60 94 75 62

+/- 21

+/- 22

+/- 27

+/- 20 73 +/- 32

<2

<2

<3

<3 64 85 87 55 72 +/-64

+/- 24

+/- 19

+/- 32

+/- 25

<2

<2

<2

<2

<3

<2

<3

<3

<2

<3

<3

<2

<3

<3

<4

<3

<2

<2

<3

<3

<5

<3

<5

<2

<2

<3

<3

<2

<4

<4

<4

<3

<3

<3

<2

<2

<2

<2

<2

<2

<3

<2

<3

<3

<2

<3

<2

<3

<4

<2

<3

<3

<2

<3

<3

<2

<2

<2

<2

<3

<3

<2

<4

<4

<2

<3

<3

<2

<4

<2

<4

<3

<2

<2

<2

<3

<3

<2

<2

<2

<3

<3

<3

<3

<2

<3

<3

<2

<4

<2

<3

<3 72 +/- 31 60 77 93 49

+/- 21

+/- 30

+/- 30

+/- 18 MEAN 70 +/- 38 5H2 01/03112 04/02/12 07/01/12 10/01/12 MEAN 47 100 93 50

+/- 29

+/- 35

+/- 32

+/- 26

<3

<3

<3

<2 73 :+/-:55

• THE MEAN AND TWO STANDARD DEVIAITON ARE CALCULATED USING THE POSITIVE VALUES C-1I

TABLE C-VI.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION PERIOD 113B 12/29/11 01/03/12 01/05/12 01/09/12 01/12/12 01/16/12 01/19/12 01/23/12 01/26/12 01/30/12 02/02/12 02/06/12 02/09/12 02/13/12 02/16/12 02/21/12 02/23/12 02/27/12 03/01/12 03/05/12 03/08/12 03/12/12 03/15/12 03/19/12 03/22/12 03/26/12 03/29/12 04/02/12 04/05/12 04/09/12 04/12/12 04/16/12 04/19/12 04/23/12 04/26/12 04/30/12 05/03/12 05/07/12 05/10/12 05/14/12 05/17/12 05/21/12 05/23/12 05/29/12 05/31/12 06/04/12 06/07/12 06/11/12 06/14/12 06/18/12 06/21/12 06/25/12 06/28/12 07/01/12 07/05/12 07/09/12 07/12/12 07/16/12 07/19/12

- 01/05/12 < 43

- 01/09/12

- 01/12/12

< 44

- 01/16/12

- 01/19/12

< 28

- 01/23/12

- 01/26/12

< 42

- 01/30/12

- 02/02/12

< 33

- 02/06/12

- 02/09/12

< 33

- 02/13/12

- 02/16/12

< 62

- 02/21/12

- 02/23/12

< 27

- 02/27/12

- 03/01/12

< 37

- 03/05/12

- 03/08/12

< 50

- 03/12/12

- 03/15/12

< 18

- 03/19/12

- 03/22/12

< 20

- 03/26/12

- 03/29/12

< 40

- 04/02/12

- 04/05/12

< 44

- 04/09/12

- 04/12/12

< 30

- 04/16/12

- 04/19/12 < 22

- 04/23/12

- 04/26/12

< 38

- 04/30/12

- 05/03/12

< 41

- 05/07/12

- 05/10/12

< 22

- 05/14/12

- 05/17/12

< 40

- 05/21/12

- 05/23/12

< 63

- 05/29/12

- 05/31/12

< 59

- 06/04/12

- 06/07/12

< 66

- 06/11/12

- 06/14/12

< 62

- 06/18/12

- 06/21/12

< 28

- 06/25/12

- 06/28/12

< 63

- 07/01/12

- 07/05/12

< 17

- 07/09/12

- 07/12/12

< 67

- 07/16/12

- 07/19/12

< 23

- 07/23/12

- 07/26/12

< 23 GROUP I ic

<43

<44

< 66

< 42

< 14

< 33

< 61

< 27

< 36

< 50

< 46

< 20

< 16

<44

< 30

< 22

< 38

< 41

< 58

< 40

< 63

< 59

< 66

< 62

< 27

< 65

<44

< 68

< 23

< 23 L--

< 24

< 44

< 67

< 43

< 33

< 34

< 62

< 27

< 14

< 51

< 46

< 21

< 41

< 45

< 31

< 23

< 13

< 41

< 59

< 41

< 64

< 59

< 67

<64

< 15

< 63

< 45 GROUP II 3A

< 43

< 43

< 65

< 41

< 33

< 33

< 24

< 27

< 36

< 50

< 45

< 20

< 40 GROUP III 5H2

< 12

< 22

< 38

< 40

< 58

< 40

< 63

< 58

< 26

< 62

< 27

<64

<44

< 67

< 23

<9

< 27

< 24

< 21

< 16

< 16

< 32

< 12

< 15

< 20

< 13

< 14

<9

< 23

< 14

< 11

< 15

< 31

<5

< 33

< 28

< 37

< 28

< 13

< 26

< 51

< 25

< 10

< 29

< 14

< 68

< 23

< 23 C-12

TABLE C-VI.1 COLLECTION PERIOD 07/23/12 - 07/30/12 07/26/12 - 08/02/12 07/30/12 - 08/06/12 08/02/12 - 08/09/12 08/06/12 - 08/13/12 08/09/12 - 08/16/12 08/13/12 - 08/20/12 08/16/12 - 08/23/12 08/20/12 - 08/27/12 08/23/12 - 08/30/12 08/27/12 - 09/04/12 08/30/12 - 09/06/12 09/04/12 - 09/10/12 09/06/12 - 09/13/12 09/10/12 - 09/17/12 09/13/12 - 09/20/12 09/17/12 - 09/24/12 09/20/12 - 09/27/12 09/24/12 - 10/01/12 09/27/12 - 10/04/12 10/01/12 - 10/08/12 10/04/12 - 10/11/12 10/08/12 - 10/15/12 10/11/12 - 10/19/12 10/15/12 - 10/22/12 10/19/12 - 10/25/12 10/22/12 - 10/29/12 10/25/12 - 11/01/12 10/29/12 - 11/05/12 11/01/12 - 11/08/12 11/05/12 - 11/12/12 11/08/12 - 11/15/12 11/12/12 - 11/19/12 11/15/12 - 11/21/12 11/19/12 - 11/26/12 11/21/12 - 11/29/12 11/26/12 - 12/03/12 11/29/12 - 12/07/12 12/03/12 - 12/10/12 12/07/12 - 12/13/12 12/10/12 - 12/17/12 12/13/12 - 12/20/12 12/17/12 - 12/23/12 12/20/12 - 12/28/12 12/23/12 - 12/31/12 1B

< 47

< 24

< 20

< 27

< 36

< 51

< 32

< 28

< 53

< 30

< 22

< 35

< 50

< 34

< 26

< 45

< 27

< 21

< 11

< 33

< 26

< 32 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP I 1 c-

< 48

< 24

< 49

< 27

< 14

< 51

< 32

< 28

<54

< 30

< 57

< 36

< 17

<34

< 26

< 45

< 27

< 21

< 27

< 33

< 11

< 32

< 57 I

GROUP II GROUP III lZ 3A 5H2

<12 26

< 47

< 34 24

< 24

< 11 49

< 49

< 10 27

< 27

< 27 37

< 36

< 13 52

< 51

< 16 32

< 17

< 14 28

< 28

< 11 21

< 53

< 29 30

< 30

< 12 58

< 57

< 15 36

< 35

<7 51

< 50

< 21 34

< 37

< 11 26

< 10

< 12 45

< 45

< 12 15

< 27

< 13 21

< 21

< 20 27

< 27

< 29 33

< 33

< 18 27

< 26

< 32 32

< 31

<9 12/28/12 - 01/03/13 < 58 MEAN

<59

<24 C-13

TABLE C-VII.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER 12 SIGMA CONTROL FARM C

E INDICATOR FARM V

D J

r-COLLECTION PERIOD 01/09/12 02/07/12 03/12/12 04/09/12 04/23/12 05/07/12 05/21/12 06/04/12 06/18/12 07/02/12 07/17/12 07/30/12 08/13/12 08/27/12 09/11/12 09/24/12 10/08/12 10/23/12 11/05/12 11/19/12 12/04/12 L

P R

S U

W

< 0.6

< 0.7

< 0.6

< 0.4

< 0.3

<0.3

< 0.3

< 0.3

< 0.3

< 0.5

< 0.5

< 0.6

<0.7

< 0.7

< 0.5

< 0.5

< 0.6

< 0.7

< 0.7

< 0.6

< 0.7

< 0.8

< 0.8

< 0.5

< 0.8

< 0.7

< 0.9

< 0.8

< 0.6

< 0.6

< 0.6

< 0.4

< 0.4

< 0.3

< 0.4

< 0.3

< 0.6

< 0.4

< 0.6

< 0.6

< 0.8

< 0.6

< 0.5

< 0.7

< 0.7

< 0.7

< 0.8

< 0.8

< 0.8

< 0.5

< 0.8

< 0.7

< 0,8

< 0.6

< 0.6

< 0.6

< 0.7

< 0.5

< 0.3

< 0.3

< 0.3

< 0.3

< 0.3

< 0.5

< 0.5

< 0,6

< 0.8

< 0.8

< 0.6

< 0.6

< 0.7

< 0.7

< 0.8

< 0.7

< 0.5

< 0.8

< 0.7

< 0.6

< 0.6

< 0.7

< 0.7

< 0.8

< 0.5

< 0.7

< 0.4

< 0.4

< 0.3

< 0.2

< 0.5

< 0.4

< 0.7

< 0.6

< 0.9

< 0.6

<0.7

< 0.7

< 0.6

< 0.8

< 0.6

< 0.8

< 0.5

< 0.9

< 0.7

< 0.6

<0.7

< 0.5

• 0.5

< 0.3

< 0.3

< 0.6

< 0.5

< 0.7

< 0.6

< 0.9

< 0.6

< 0.6

< 0.8

< 0.8

< 0.5

< 0.7

< 0.7

< 0.6

< 0.7

< 0.8

< 0.5

< 0.5

< 0.3

< 0.7

< 0.8 MEAN

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA SITE COLLECTION PERIOD C

02/06/12 05/07/12 08/13/12 11/05/12 MEAN o

02/06/12 05/07/12 08/13/12 11/05/12 MEAN K-40 Cs-1 34 Cs-137 Ba-140 La-140 E

02/06/12 05/07/12 08/13/12 11/05/12 MEAN J

01/09/12 02/06/12 03/12/12 04/09/12 04/23/12 05/07/12 05/21/12 06/04/12 06/18/12 07/02/12 07/17/12 07/30/12 08/13/12 08/27/12 09/10/12 09/24/12 10/08/12 10/23/12 11/05/12 11/19/12 12/04/12 MEAN 1409 +/- 222 1332 +/- 129 1363 +/- 132 1442 +/- 177 1387 +/- 97 1381 +/- 170 1340 +/- 165 1278 +/- 120 1371 +/- 172 1343 +/- 93 1341 +/- 166 1321 +/- 134 1333 +/- 159 1425 +/- 167 1355 +/- 95 1495 +/- 157 1452 +/- 126 1359 +/- 158 1328 +/- 183 1423 +/- 144 1085 +/- 169 1201 +/- 119 1233 +/- 139 1313 +/- 128 1332 +/- 151 1386 +/- 139 1281 +/- 176 1281 +/- 98 1222 +/- 115 1266 +/- 154 1313 +/- 170 1445 +/- 168 1343 +/- 141 1083 +/- 142 1407 +/- 133 1315 +/- 95

<7

<5

<5

<6

<9

<6

<5

<7

< 41

< 28

< 25

< 40

<6

<4

<5

<7

<9

<5

<5

<9

< 41

< 26

< 26

< 44

<7

<8

<7

< 12

< 11

<7

<7

< 11

<6

<6

<5

<6

<8

<6

<5

<7

<44

< 28

< 24

< 32

<9

<9

<7

< 13

<6

<5

<6

<7

<5

<7

<4

<4

<6

<6

<6

<7

<3

<4

<5

<7

<6

<4

<7

<4

<3

<6

<5

<6

<8

<7

<7

<5

<5

<6

<6

<6

<8

<4

<5

<6

<8

<7

<5

<8

<5

<4

< 31

< 27

< 33

< 41

< 33

< 39

< 25

< 24

< 25

< 46

< 31

< 41

< 18

< 28

< 29

<34

< 35

< 24

< 42

< 23

< 19

< 10

<6

<9

<8

<8

< 14

<6

<7

<8

< 10

<9

< 12

<5

<8

< 10

< 12

< 11

<7

< 14

<8

<5 1313 +/- 217

• THE MEAN AND TWO STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES C-15

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION PERIOD L

02/06/12 05107/12 08/13/12 11/05/12 MEAN P

02/06/12 05/07/12 08/13/12 11/05/12 MEAN R

01/09/12 02/06/12 03/12/12 04/09/12 04123/12 05/07/12 05/21/12 06/04/12 06/18/12 07/02/12 07/17/12 07/30/12 08113/12 08/27/12 09/10/12 09/24/12 10/08/12 10/23/12 11/05/12 11119/12 12/04/12 MEAN K-40 Cs-134 Cs-1 37 Ba-140 La-140 1316 +/- 170 1362 +/- 123 1341 +/- 152 1489 +/- 196 1377 +/- 154 1245 +/- 121 1303 +/- 137 1249 +/- 125 1362 +/- 141 1290 +/- 110 1290 +/- 170 1250 +/- 159 1409 +/- 143 1133 +/- 161 1148 +/- 129 1194 +/- 201 1209 +/- 155 1390 +/- 148 1357 +/- 154 1206 +/- 132 1175 +/- 127 1281 +/- 157 1305 +/- 103 1194 +/- 136 1209 +/- 164 1311 +/- 226 1448 +/- 184 1284 +/- 155 1351 +/- 153 1434 +/- 95 1229 +/- 106 1277 +/- 188

<6

<5

<6

<8

<4

<6

<5

<5

<7

<6

<6

<8

<5

<6

<6

<6

< 28

< 29

< 28

< 41

< 25

< 30

< 24

< 33

< 14

<9

<8

< 11

<5

< 10

<7

<9

<7

<7

<5

<7

<5

<9

<7

<6

<7

<5

<6

<6

<4

<4

<6

<8

<7

<6

<6

<3

<4

<8

<7

<5

<8

<5

< 11

<7

<7

<7

<6

<4

<5

<5

<5

<6

<8

<8

<7

<8

<4

<5

< 31

< 30

< 30

< 40

< 25

< 48

< 34

< 33

< 35

< 37

< 24

< 36

< 25

< 20

< 37

< 36

< 53

< 31

< 38

< 19

< 24

<9

<9

<7

< 12

< 12

<9

< 10

<9

< 11

< 12

<8

<7

<6

<6

< 11

< 14

< 14

< 11

< 10

<6

<6

• THE MEAN AND TWO STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES C-16

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA SITE COLLECTION PERIOD S

01/09/12 02/06/12 03/12/12 04/09/12 04/23/12 05/07/12 05/21/12 06/04/12 06/18/12 07/02/12 07/17/12 07/30/12 08/13/12 08/27/12 09/10/12 09/24/12 10/08/12 10/23/12 11/05/12 11/19/12 12/04/12 MEAN U

01/09/12 02/06/12 03/12/12 04/09/12 04/23/12 05/07/12 05/21/12 06/04/12 06/18/12 07/02/12 07/17/12 07/30/12 08/13/12 08/27/12 09/11/12 09/24/12 10/08/12 10/23/12 11/05/12 11/19/12 12/04/12 MEAN K-40 Cs-i 34 Cs-i 37 Ba-140 La-140 1055 +/- 118 1292 +/- 149 1345 +/- 172 1511 +/- 189 1271 +/- 129 1132 +/- 205 1626 +/- 194 1355 +/- 166 1237 +/- 133 1427 +/- 128 1324 +/- 122 1273 +/- 142 1303 +/- 106 1293 +/- 146 1309 +/- 143 1393 +/- 195 1474 +/- 185 1456 +/- 153 1303 +/- 180 1290 +/- 112 1384 +/- 118 1336 +/- 249

<5

<7

<7

<5

<5

<7

<7

<5

<5

<5

<5

<7

<4

<5

<6

<6

<6

<5

<4

<4

<3

<7

<7

<8

<5

<6

<7

<8

<4

<5

<5

<6

<7

<5

<5

<8

<7

<8

<6

<5

<5

<4

< 27

< 36

< 35

< 27

< 26

< 47

< 38

< 26

< 30

< 37

< 27

< 36

< 20

< 23

<34

< 33

< 41

< 27

< 29

< 22

< 18

<7

<8

< 10

< 11

<7

< 10

< 10

<6

<8

< 12

<7

< 12

<7

<7

<7

< 13

< 11

<8

<7

<7

<6 1050 1134 1218 1399 1262 1218 1309 1292 1376 1162 1305 1335 1363 1151 1310 1236 1399 1371 1229 1215 1177

+/- 157

+/- 145

+/- 98

+/- 180

+/- 128

+/- 125

+/- 141

+/- 142

+/- 150

+/- 122

+/- 138

+/- 168

+/- 102

+/- 140

+/- 154

+/- 155

+/- 202

+/- 159

+/- 148

+/- 138

+/- 105

<6

<5

<4

<7

<5

<6

<5

<5

<5

<5

<5

<6

<4

<4

<6

<5

<6

<6

<6

<6

<4

<7

<7

<4

<8

<6

<6

<6

<6

<7

<6

<6

<7

<4

<5

<7

<7

<9

<6

<6

<6

<4

< 33

< 27

< 23

< 41

< 30

< 29

< 30

< 29

< 30

< 40

< 29

< 35

< 22

< 24

< 33

< 38

< 44

< 28

< 35

< 31

< 21

<5

<8

<6

< 12

< 11

<9

<9

<8

< 12

< 11

<7

< 10

<4

<8

< 10

< 10

< 13

<9

< 10

<9

<7 1262 +/- 192

• THE MEAN AND TWO STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES C-17

TABLE C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA SITE COLLECTION PERIOD V

01/09/12 02/06/12 03/12/12 04/09/12 04/23/12 05/07/12 05/21/12 06/04/12 06/18/12 07/02/12 07/17/12 07/30/12 08/13/12 08/27/12 09/10/12 09/24/12 10/08/12 10/23/12 11105/12 11/19/12 12/04/12 MEAN W

02/07/12 05/07/12 08/13/12 11/05/12 MEAN K-40 Cs-i 34 Cs-i 37 Ba-140 La-140 1281 1140 1169 1138 1092 1121 1180 1245 1228 1352 1317 1247 1224 1302 1137 1285 1237 1223 1253 1194 1154

+/- 162

+/- 156

+/- 119

+/- 163

+/- 139

+/- 177

+/- 121

+/- 113

+/- 122

+/- 138

+/- 113

+/- 157

+/- 113

+/- 121

+/- 140

+/- 166

+/- 163

+/- 148

+/- 163

+/- 117

+/- 76

<5

<6

<4

<6

<5

<7

<5

<5

<5

<6

<4

<6

<3

<5

<5

<7

<6

<6

<6

<5

<3

<8

<6

<6

<8

<6

<9

<6

<4

<5

<6

<5

<7

<4

<6

<5

<8

<7

<7

<6

<5

<4

< 33

• 27

< 26

< 34

< 27

< 50

< 24

• 23

< 24

< 50

< 22

• 42

< 18

< 29

< 25

< 39

< 38

• 31

< 37

< 24

<17

<7

< 11

<7

<9

<7

< 12

<9

<8

<7

< 14

<7

<9

<5

<9

<9

<7

<8

<9

<11

<6

<6 1215 +/- 141 1329 1221 1396 1398

+/- 178

+/- 134

+/- 152

+/- 133

<7

<5

<5

<5

<6

<7

<8

<6

• 29

< 33

< 31

< 28

< 10

<9

<9

<8 1336 +/- 166

• THE MEAN AND TWO STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES C-18

TABLE C-VIII.1 CONCENTRATIONS OF GAMMA EMITTERS IN FOOD PRODUCT SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION PERIOD 1Q 05/31/12 Gre 06/25/12 Gre 06/25/12 Tob 07/30/12 Gre 07/30/12 Pak 07/30/12 Tob 08/27/12 Gre 08/27/12 Pak 08/27/12 Tob 09/24/12 Gre 09/24/12 Swe 09/24/12 Tob Be-7 K-40 Mn-54 C0-58 Co-60 1-131 Cs-134 Cs-137 en Cabbage en Cabbage acco Leaves en Cabbage Choi Leaves acco Leaves en Cabbage ChoiLeaves acco Leaves en Cabbage set Com Leaves acco Leaves

< 202

< 141 424 +/- 126

< 124 311 +/- 108 587 +/- 261

< 80 484+/- 158 562 +/- 159

< 201 3954 +/- 288 570 +/- 191 4134 +/- 559 2231 +/- 301 5318 +/- 338 2353 +/- 385 3855 +/- 336 3677 +/- 487 2025 +/- 180 3321 +/- 358 4953 +/- 351 3525 +/- 332 3711 +/- 342 6377 +/- 469

< 21

< 14

< 14

< 15

< 15

< 20

<7

< 14

< 24

< 16

< 19

< 19

< 19

< 16

< 15

< 14

< 15

< 22

<9

< 13

< 23

< 18

< 20

< 20

< 26

< 15

< 15

< 20

< 15

< 27

< 10

< 18

< 29

< 18

< 21

< 25

< 55

< 56

< 59

< 25

< 25

< 36

< 20

< 29

< 55

< 57

< 59

< 55

< 16

< 13

< 13

< 13

< 14

< 25

<8

< 13

< 25

< 19

< 19

< 17

< 21

< 11

< 14

< 18

< 18

< 22

<9

< 16

< 26

< 19

< 19

< 19 MEAN 985 +/- 2626 3790 +/- 2588 2B 06125/12 06/25/12 06/25/12 07/30/12 07/30/12 07/30/12 08/27/12 08/27/12 08/27/12 09/24/12 09/24/12 09/24/12 Leaf Lettuce Romaine Lettuce Squash Leaves Green Cabbage Pak Choi Leaves Romaine Lettuce Green Cabbage Red Beet Leaves Red Cabbage Green Cabbage Pak Choi Red Cabbage 276 +/- 59 227 +/- 188 815 +/- 133 177 +/- 146 716 +/- 333 902 +/- 227

< 113 385 +/- 224

< 114

< 172 450 +/- 239

< 208 4340 +/- 183 5366 +/- 499 5729 +/- 306 3999 +/- 389 4513 +/- 645 8416 +/- 654 3379 +/- 290 10270 +/- 861 3397 +/- 279 2413 +/- 379 5906 +/- 641 3486 +/- 391

<8

< 11

< 13

< 18

< 24

< 27

< 13

< 27

< 13

< 22

< 19

< 16

<8

< 11

< 14

< 16

< 29

< 25

< 15

< 31

< 11

< 21

< 22

< 17

< 10

< 14

< 13

< 22

< 27

< 37

< 15

< 33

< 15

< 24

< 26

< 20

< 33

< 48

< 60

< 29

< 40

< 44

< 24

< 54

< 29

< 51

< 58

< 58

<7

< 11

< 12

< 13

< 24

< 24

< 12

< 25

< 13

< 17

< 18

< 18

<8

< 12

< 13

< 18

< 24

< 26

< 14

< 27

< 13

< 21

< 22

< 19 MEAN 493 +/- 561 5101 +/- 4539 55 05/31/12 06/25/12 06/25/12 06/25/12 07/30/12 07/30/12 07/30/12 08/27/12 08/27/12 08/27/12 09/24/12 09/24/12 09/24/12 Green Cabbage Green Cabbage Lettuce Red Beet Leaves Green Cabbage Red Beet Leaves Red Cabbage Broccoli Leaves Leaf Lettuce Red Beet Leaves Broccoli Leaves Cauliflower Leaves Red Beet Leaves 181 +/- 132 77 +/- 67 181 +/- 81 472 +/- 97

< 166 674 +/- 176

< 139

< 149 328 +/- 170

< 296 919 +/- 170 480 +/- 130 514 +/- 191 3855 +/- 371 3756 +/- 149 3803 +/- 170 12290 +/- 283 2644 +/- 405 9566 +/- 561 3374 +/- 415 5335 +/- 392 5361 +/- 499 11480 +/- 821 5239 +/- 471 6056 +/- 372 10080 +/- 519

< 17

<6

<7

<9

< 19

< 18

< 17

< 14

< 19

< 25

< 19

< 16

< 18

< 19

<6

<7

< 10

< 19

< 19

< 16

< 15

< 21

< 23

< 21

< 17

< 19

< 22

<7

<9

< 12

< 27

< 27

< 24

< 19

< 25

< 31

< 21

< 19

< 27

< 59

< 30

< 33

< 37

< 33

< 32

< 31

< 33

< 48

< 56

< 57

< 53

< 55

< 17

<6

<7

<8

< 20

< 18

< 16

< 14

< 20

< 23

< 18

< 15

< 15

< 19

<6

<8

<9

< 21

< 21

< 17

< 15

< 23

< 25

< 19

< 18

< 20 MEAN 425 +/- 534 6372 +/- 6613

• THE MEAN AND TWO STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES C-19

TABLE C-IX.1 QUARTERLY OSLD RESULTS FOR PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF MREM/STD. MONTH +/- STANDARD DEVIATIONS STATION CODE 2

5 14 15 16 17 18 19 lA 1B 1C 1D 1E 1F 1G 1H 11 1J 1K IL iM IP 1Q 1R 22 23 24 26 27 2B 32 3A 40 42 43 44 45 46 47 48 49 4K 50 MEAN

+/- 2 S.D.

3.4 1.4 2.8 +/- 1.1 3.2 +/- 1.3 3.6 t 1.3 3.6 +/- 1.5 4.8 t 1.9 3.7 +/- 1.6 2.7 +/- 1.0 3.0 +/- 1.2 2.4 +/- 1.2 3.7 +/- 1.8 3.4 +/- 1.3 3.2 +/- 1.0 4.7 +/- 1.3 1.5 +/- 1.1 3.5 +/- 0.9 2.7 +/- 1.6 4.7 +/- 2.0 4.6 +/- 1.8 1.4 +/- 0.5 0.1 +/- 0.6 0.8 +/- 0.7 1.7 +/- 0.9 5.9 + 1.1 4.0 + 1.5 4.0 +/- 1.2 2.1 + 0.9 4.7 + 1.3 3.8 + 1.4 3.1 +/- 1.2 4.3 + 1.3 1.3 +/- 0.6 4.7 + 1.4 2.7 +/- 0.6 4.6 + 1.2 3.1 + 0.8 4.0 +/- 1.6 2.5 +/- 1.5 4.4 +/- 1.3 4.0 +/- 1.8 3.5 +/- 1.4 0.6 +/- 1.4 4.9 +/- 1.3 JAN-MAR APR-JUN JUL-SEP OCT-DEC 2.5 2.0 2.2 2.9 2.5 3.9 2.7 2.0 2.5 1.5 2.5 2.6 2.5 3.9 0.8 2.9 1.6 3.5 3.5 1.1 0.0 0.4 1.3 5.3 3.6 3.2 1.5 4.1 2.9 2.2 3.4 1.0 3.7 2.5 3.9 2.5 3.0 1.5 3.6 2.8 2.7

-0.3 4.1 4.0 3.0 3.6 4.4 4.3 6.1 4.6 3.0 3.9 2.6 4.6 4.1 3.4 5.4 1.9 3.7 3.5 5.9 5.7 1.4 0.1 0.9 2.1 6.5 4.8 4.5 2.5 5.6 4.4 3.6 4.8 1.1 5.3 2.5 5.3 3.4 4.9 2.8 5.0 4.9 4.2 0.7 5.5 3.8 3.1 3.5 3.6 3.7 4.7 3.8 3.0 2.8 2.7 3.9 3.6 3.6 4.7 1.7 3.9 3.1 4.8 4.4 1.7 0.5 1.2 2.0 5.9 4.2 2.2 4.7 4.3 3.4 4.5 1.6 5.0 2.5 4.8 3.2 4.2 3.2 4.9 4.2 3.9 1.4 5.0 3.5 3.0 3.4 3.5 3.7 4.7 3.6 2.8 3.0 2.7 3.7 3.2 3.5 4.9 1.8 3.4 2.8 4.8 4.7 1.2

-0.1 0.9 1.4 5.8 (1) 3.5 4.0 2.1 4.5 3.8 3.1 4.4 1.4 4.9 3.1 4.4 3.1 3.8 2.7 4.3 4.1 3.2 0.4 5.1 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-20

TABLE C-IX.1 QUARTERLY OSLD RESULTS FOR PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF MREM/STD. MONTH +/- STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE

+/- 2 S.D.

51 3.8 +/- 1.2 3.0 4.4 3.8 3.9 6B 2.3 +/- 1.2 1.5 2.9 2.3 2.5 1NN 4.3 +/- 1.4 3.4 5.0 4.6 4.1 31A 2.3 +/- 1.1 1.5 2.6 2.6 2.5 C-21

TABLE C-IX.2 MEAN QUARTERLY OSILD RESULTS FOR THE SITE BOUNDARY, INTERMEDIATE AND CONTROL LOCATIONS FOR PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF MREM/ MONTH +/- STANDARD DEVIATIONS OF THE STATION DATA COLLECTION PERIOD SITE BOUNDARY

+/-2 S.D.

INTERMEDIATE CONTROL JAN-MAR APR-JUN JUL-SEP OCT-DEC 2.4 +/- 2.6 3.7 +/- 3.5 3.4 +/- 2.8 3.2 +/- 3.1 2.6 +/- 2.2 4.0 +/- 2.8 3.6 +/- 2.1 3.4 +/- 2.2 2.1 +/- 1.1 3.6 +/- 2.0 3.2 + 1.5 3.1 + 1.5 TABLE C-IX.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF MREM/STD. MONTH LOCATION SITE BOUNDARY INTERMEDIATE CONTROL SAMPLES ANALYZED 80 91 16 PERIOD MINIMUM

-0.1

-0.3 1.5 PERIOD MAXIMUM 6.5 6.1 4.6 PERIOD MEAN

+/- 2 S.D.

3.1 +/- 3.1 3.4 +/- 2.5 3.0 +/- 1.8

_1 SITE BOUNDARY STATIONS-1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 11, 1J, 1K, 1L, 1M, 1NN, 1P, 1Q, 1R, 2, 2B, 40 INTERMEDIATE STATIONS - 14,15,17, 22, 23, 26, 27, 31A, 32, 3A, 42, 43, 44, 45, 46, 47, 48, 49, 4K, 5, 50, 51, 6B CONTROL STATIONS - 16,18, 19,24 C-22

FIGURE C-1 MONTHLY TOTAL GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 2012 6

4 t'j C.

0.

2 0

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH PBAPS changed to total gross beta at the beginning of 2005.

Previous data included summation of less than values.

FIGURE C-2 MEAN ANNUAL CS-137 CONCENTRATIONS IN FISH SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 1971 - 2012 1000 I

750 E

S 500 0

0.

250 0

I I

I I

i I

I I

I I

I I

I i

I I

I I

I I

I I

I I

I i

I I_

I I

I I

I i

I i

I I

I I

I I

I I

I I

I I

I I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I _

I _

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

A I

I I

I I

I I

I I

I I

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-a-INDICATOR I

I I

I I

I I

I I

I I

I -

I I

I I

I I

T T IL I-A I

I I

l I

71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 YEAR

FIGURE C-3 MEAN SEMI-ANNUAL CS-137 CONCENTRATIONS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 1971 - 2012 n

-o E

0) 0~

2000 1750 1500 1250 1000 750 500 250 0

71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 YEAR No sample collected from Station 4J in 1990 and Station 4D discontinued beginning 1991

FIGURE C-4 MEAN WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 2012 60

-A-GROUP I

-"-GROUP II 50

-"- GROUP III 40 30

.20 130 0o I

o.

1 5

9 13 17 21 25 29 33 37 41 45 49 53 WEEK NO.

FIGURE C-5 MEAN MONTHLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 1970 - 2012 1000 L-.

E (I,

100 10 I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

I I

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I I

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I -

F-1 -

+

I I

I I

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I I

r I

I I

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I 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 00 02 04 06 08 10 12 YEAR

FIGURE C-6 MEAN ANNUAL CS-137 CONCENTRATIONS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 1971 - 2012 20 15 A

10 I

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i a

Using iDA values result in a larger number.

Cs-137 milk LLD = 18 pCi/liter

FIGURE C-7 MEAN QUARTERLY AMBIENT GAMMA RADIATION LEVELS (OSLD)

IN THE VICINITY OF PBAPS, 1973 - 2012 10 9

I 6E "0

8 7

6 5

4 73 75 77 79 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 YEAR

FIGURE C-8 QUARTERLY AMBIENT GAMMA RADIATION LEVELS (OSLD)

NEAR THE INDEPENDENT SPENT FUEL STORAGE INSTALLATION LOCATED AT PBAPS, 1998 - 2012 10 9

n

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6 )i ly I '

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Controls Series 9 SSeries 10 s

Series 11 1140 IIIc 100 10" 1011

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ro 0"

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YEAR F-ISFSI activated June, 2000

APPENDIX D DATA TABLES AND FIGURES QC LABORATORY

TABLE D-I.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 4L

< 1.9

< 1.9

< 1.9

< 1.3

< 1.9

< 2.0

< 2.0

< 2.0

< 1.7

< 2.0

< 1.7

< 1.9 MEAN TABLE D-I.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 4L 1.3 +/- 0.7

< 1.8

< 1.3

< 1.8

< 1.3 1.7 +/- 0.8 2.0 +/- 0.9 2.5 +/- 1.0 2.0 +/- 1.0 1.3 +/- 0.6 2.2 +/- 1.0 1.7 MEAN 1.9 +/- 0.9

• THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES D-1

TABLE D-1.3 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 4L APR-JUN JUL-SEP OCT-DEC D

1Ol

< 145

< 152

< 139 MEAN TABLE D-I.4 CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MEAN 4L

< 0.4

< 0.3

< 0.2

< 0.3

< 0.2

< 0.3

< 0.3

< 0.2

< 0.4

< 0.4

< 0.3

< 0.3 D-2

TABLE D-1.5 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 PERIOD Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-1 34 Cs-137 Ba-140 La-140 4L JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

<2

<3

<3

<2

<3

<1

<2

<3

<2

<2

<5

<2

<7

<5

<5

<5

<7

<5

<9

<5

<8

<4

<3

<7

<2

<2

<4

<3

<2

<1

<2

<3

<2

<1

<3

<3

<3

<2

<3

<2

<1

<1

<2

<2

<3

<2

<3

<3

<3

<4

<3

<5

<4

<2

<3

<5

<3

<4

<4

<4

<4

<4

<4

<5

<4

<2

<6

<3

<5

<3

<8

<4

<2

<3

<3

<3

<4

<2

<3

<3

<3

<3

<4

<3

<3

<2

<4

<4

<2

<1

<2

<3

<2

<2

<4

<3

<2

<3

<4

<2

<3

<1

<3

<3

<2

<2

<4

<2

< 13

< 12

< 12

< 21

< 17

< 16

< 26

< 19

< 13

< 13

< 14

< 12

<2

<1

<2

<3

<3

<6

<7

<5

<4

<3

<3

<2 MEAN

TABLE D-ll.1 CONCENTRATIONS OF GROSS BETA INSOLUBLE IN AIR PARTICULATE AND 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION PERIOD 1

2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 1A GROSS BETA V/ +/-

4 35 +/- 5 21 +/- 4 27 +/- 5 29 +/- 4 30 +/- 4 20 +/- 4 27 +/- 4 21 +/- 4 24 +/- 4 28 +/- 5 20 +/- 4 21 +/- 4 15 +/- 4 18 +/- 4 27 +/- 4 16 +/- 4 28 +/- 4 21 +/- 4 21 +/- 4 17 +/- 5 20 +/- 4 16 +/- 4 25 +/- 5 18 +/- 4 27 +/- 4 37 +/- 5 29 +/- 4 34 +/- 4 20 +/- 4 25 +/- 4 26 +/- 4 26 +/- 4 36 +/- 5 35 +/- 4 42 +/- 5 25 +/- 4 21 +/- 4 29 +/- 4 29 +/- 4 37 +/- 5 27 +/- 4 40 +/- 5 21 +/- 4 16 +/- 4 35 +/- 5 40 +/- 5 44 +/- 4 38 +/- 4 26 +/- 5 38 +/- 5 26 +/- 4 33 +/- 5 1A 1-131

< Z4

• 23

< 24

• 20

< 24 c 13 c 17

< 20

< 19 c 16

< 15

< 20 c 19

< 21

• 14

• 15

< 30

• 18

< 14

• 20

• 25

• 25

< 24

• 23

< 18

< 17

< 24

< 23

< 18

< 17

< 17

< 11

< 13

< 14

< 24

< 22

< 20

< 17

< 11

< 25

< 13

< 19

< 19

< 18

< 22

< 17

< 22

• 23

< 12

< 27

< 25

< 13

< 17 MEAN 27 +/- 15 D-4

TABLE D-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA Be-7 Mn-54 Co-58 Co-60 Cs-1 34 Cs-137 SITE COLLECTION PERIOD 1A 12/29/11 - 03/29/12 03/29/11 - 06/28/12 06/28/11 - 09/27/12 09/27/12 - 01/03/13 MEAN 63 +/- 17 85 +/- 18 84 +/- 18 51 +/- 12 71 +/- 33

< 0.7

< 0.6

< 0.8

< 0.5

< 0.7

< 0.8

< 0.6

< 0.6

< 0.8

< 0.7

< 1.1

< 0.7

< 0.7

< 0.9

< 0.6

< 0.6

< 0.7

< 0.8

< 0.8

< 0.4 D-5

TABLE D-11.1 CONCENTRATIONS OF 1-131 BY CHEMICAL SEPARATION AND GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION PERIOD 1-131 K-40 Cs-1 34 Cs-137 Ba-140 La-140 J

02/06112 05/07/12 08/13/12 11/05/12 MEAN S

02/06/12 05/07/12 08/13/12 11/05/12 MEAN

< 0.3

< 0.4

• 0.3

< 0.5 1393 +/- 98 1323 +/- 111 1454 +/- 111 1231 +/- 92 1350 +/- 192 1337 +/- 123 1213 +/- 155 1495 +/- 114 1452 +/- 111 1374 +/- 253

<2

<3

<3

<3

< 3

<4

<3

<3

< 18

< 30

< 32

< 41

< 5

<6

<3

< 11

• 0.2

< 0.4

< 0.2

< 0.3

<5

<3

<4

<3

<4

<6

<4

<4

<8 32 31

< 51

<3

<8

<2

<13 V

02/06/12

< 0.3 05/07/12

< 0.4 08/13/12

< 0.4 11/05/12

< 0.4 1313 +/- 96

< 2 1416 +/- 131

< 5

<2

<4

<2

<3

<12

< 30

< 30

< 29

<4

<3

<6

<4 1336 +/- 111 1293 +/- 91 1340 +/- 108

<2

<3 MEAN D-6

TABLE D-IV.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 DRINKING WATER (GROSS BETA & GAMMA SPECTROSCOPY)

DRINKING......

WAE (R

S A

MiPC R

S O

Y COLLECTION PERIOD 4L JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 12/29/11 02/02/12 03/01/12 03/29/12 05/03/12 05/31/12 06/28/12 08/02/12 08/30/12 09/27/12 11/01/12 11/29/12

- 02/02/12

- 03/01/12

- 03/29/12

- 05/03/12

- 05/31/12

- 06/28/12

- 08/02/12

- 08/30/12

- 09/27/12

- 11/01/12

- 11/29/12

- 01/03/13 AI A l'I I

AT r'

l A R*

I I A O*IlIrflTIfrlfl

• /*lflfl 1l PMurn M

%O.S'.Lfl, ý IIIno

~

~o.tr COLLECTION PERIOD 1A JAN-MAR 12/29/11 - 03/29/12 APR-JUN 03/29/12 - 06/28/12 JUL-SEP 06/28/12 - 09/27/12 OCT-DEC 09/27/12 - 01/03/13 AIR PARTICULATE (GROSS BETA) AND AIR IODINE (1-131)

COLLECTION COLLECTION PERIOD 1A PERIOD 1A 1

2 3

4 5

6 7

8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 01/05/12 01/12/12 01/19/12 01/26/12 02/02/12 02/09/12 02/16/12 02/23/12 03/01/12 03/08/12 03/15/12 03/22/12 03/29/12 04/05/12 04/12/12 04/19/12 04/26/12 05/03/12 05/10/12 05/17/12 05/23/12 05/31/12 06/07/12 06/14/12 06/21/12 U IIUal I1 01/12/12 01/19/12 01/26/12 02/02112 02/09/12 02/16/12 02/23/12 03/01/12 03/08/12 03/15/12 03/22/12 03/29/12 04/05/12 04/12/12 04/19/12 04/26/12 05/03/12 05/10/12 05/17/12 05/23/12 05/31/12 06/07/12 06/14/12 06/21/12 06/28/12 vuI /-.

I I 07/05/12 07/12/12 07/19/12 07/26/12 08/02/12 08/09/12 08/16/12 08/23/12 08/30/12 09/06/12 09/13/12 09/20/12 09/27/12 10/04/12 10/11/12 10/19/12 10/25/12 11/01/12 11/08/12 11/15/12 11/21/12 11/29/12 12/07/12 12/13/12 12120/12 12/28/12 07/12I

/1

- 07/12/12

- 07/19/12

- 07/26/12

- 08/02112

- 08/09/12

- 08/16/12

- 08/23/12

- 08/30/12

- 09/06/12

- 09/13/12

- 09/20/12

- 09/27/12

- 10/04/12

- 10/11/12

- 10/19/12

- 10/25/12

- 11/01/12

- 11/08/12

- 11/15/12

- 11/21/12

- 11/29/12

- 12/07/12

- 12/13/12

- 12/20/12

- 12/28/12

- 01/03/13 D-7

FIGURE D-1 COMPARISON OF MONTHLY TOTAL GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES SPLIT BETWEEN THE PRIMARY AND QC LABORATORIES, 2012 101

-a-PRIMARY LAB 00 I-0) 0L I

i 0

JAN FEB MAR APR MAY ENVIRONMENTAL INC. SOLUBLE AND INSOLUBLE FRACTIONS WERE JUN JUL AUG SEP OCT NOV DEC MONTH

FIGURE D-2 COMPARISON OF WEEKLY GROSS BETA CONCENTRATIONS FROM COLLOCATED AIR PARTICULATE LOCATIONS SPLIT BETWEEN 60 50 CL.

C0 0

40 30 20 10 0

1 4

7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 WEEK NO.

APPENDIX E QUALITY CONTROL INTER-LABORATORY COMPARISON PROGRAM

TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 1 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a)

Value (b)

TBE/Analytics Evaluation (d)

March 2012 E10066 E10067 E10069 E10068 Milk Milk Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L 101 94.8 pCi/L 11.7 13.5 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 87.5 247 435 133 156 127 190 179 327 274 167 310 107 109 87.6 133 113 226 185 92.5 260 436 149 159 132 195 168 333 279 164 276 94.5 101 83.5 123 106 210 176 AP Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Charcoal 1-131 Water Fe-55 June 2012 E10070 E10198 E10199 E10201 E10200 pCi 92.8 94.2 pCi/L 1800 1570 pCi/L 86.1 99.8 pCi/L 9.2 12.7 1.07 0.87 0.95 0.95 1.00 0.89 0.98 0.96 0.97 1.07 0.98 0.98 1.02 1.12 1.13 1.08 1.05 1.08 1.07 1.08 1.05 0.99 1.15 0.86 0.72 0.89 0.89 0.98 0.91 0.97 0.97 0.98 1.01 0.97 0.96 0.97 1.00 1.04 1.06 1.01 0.98 1.07 0.99 1.04 1.05 Milk Milk Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 88.9 72.8 394 159 206 89.5 129 129 193 342 73.2 367 165 205 84.7 118 125 181 338 99.7 82.2 402 174 212 92.3 132 128 199 355 75.1 366 159 193 84.2 121 117 182 324 A

A W

A A

A A

A A

A A

A A

A A

A A

A A

A A

A A

AP Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Charcoal 1-131 pCi 101 96.6 E-I

TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 2 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a)

Value (b)

TBE/Analytics Evaluation (d)

June 2012 E10202 Water Fe-55 pCi/L 1890 1580 pCi/L 106 99.6 pCi/L 13.6 16.0 September2012 E10296 E10297 E10299 E10298 Milk Milk Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 89.8 160 230 101 174 97.2 188 159 195 155 145 219 94.1 140 88.3 173 136 165 133 99.6 164 248 108 174 100 196 152 192 152 135 205 89.4 144 83.0 162 125 159 125 AP Ce-141 Cr-51 Cs-134 Cs-1 37 Co-58 Mn-54 Fe-59 Zn-65 Co-60 Charcoal 1-131 Water Fe-55 E10300 pCi 95.5 97.2 pCi/L 1630 1900 pCi/L 101 96.6 pCi/L 11.3 13.8 1.20 1.06 0.85 0.90 0.98 0.93 0.94 1.00 0.97 0.96 1.05 1.02 1.02 1.07 1.07 1.05 0.97 1.06 1.07 1.09 1.04 1.06 0.98 0.86 1.05 0.82 1.03 1.03 1.07 0.95 0.97 0.96 1.00 1.07 1.02 1.01 1.04 1.10 1.02 0.99 1.01 1.05 0.94 0.92 1.08 A

A December2012 E10334 E10335 E10337A Milk Milk Sr-89 Sr-90 1-131 Ce-141 Cr-51 Cs-134 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi/L pCi pCi pCi pCi pCi pCi pCi pCi pCi 93.1 52.5 373 157 113 94.1 116 124 190 172 51.8 372 165 113 96.5 118 105 166 179 90.0 51.0 348 165 117 98.5 116 116 186 170 49.6 338 161 114 95.8 112 112 181 165 AP Ce-141 Cr-51 Cs-1 34 Cs-137 Co-58 Mn-54 Fe-59 Zn-65 Co-60 E-2

TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 3 OF 3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a)

Value (b)

TBE/Analltics Evaluation (d)

December 2012 E10336 E10333 Charcoal 1-131 Water Fe-55 pCi 73.1 72.7 pCi/L 1550 1750 1.01 0.89 A

A (a) Teledyne Brown Engineering reported result.

(b) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

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

(d) Analytics evaluation based on TBE internal QC limits: A= Acceptable. Reported result falls within ratio limits of 0.80-1.20.

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

E-3

TABLE E-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2012 (PAGE 1 OF 1)

Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a)

Value (b)

Limits Evaluation (c)

May 2012 RAD-89 MRAD-16 Water Sr-89 Sr-90 Ba-133 Cs-134 Cs-137 Co-60 Zn-65 Gr-A Gr-B 1-131 H-3 Filter Gr-A Water Sr-89 Sr-90 Ba-133 Cs-134 Cs-137 Co-60 Zn-65 Gr-A Gr-B 1-131 H-3 Filter Gr-A pCi/L 63.4 pCi/L 33.5 pCi/L 89.2 pCi/L 66.5 pCi/L 152 pCi/L 73.3 pCi/L 109 pCi/L 82.4 pCi/L 43.6 pCi/L 25.9 pCi/L 15433 pCi/filter 39.5 pCi/L 46.5 pCi/L 16.6 pCi/L 85.2 pCi/L 76.9 pCi/L 177 pCi/L 77.4 pCi/L 209 pCi/L 50.6 pCi/L 59.3 pCi/L 22.9 pCi/L 5020 pCi/filter 59.6 58.5 37.4 82.3 74.2 155 72.9 105 62.9 44.2 27.1 15800 46.9 - 66.3 27.4 - 43.1 69.1 -90.5 60.6-81.6 140-172 65.6 - 82.6 94.5-125 33.0-78.0 29.6-51.5 22.5-31.9 13800 - 17400 77.8 26.1 -121 A

A A

A A

A A

N (1)

A A

A A

N (2)

A A

A A

A A

A N (2)

A A

November, 2012 RAD-91 39.1 20.1 84.8 76.6 183 78.3 204 58.6 39.2 24.8 4890 29.7 -46.1 14.4 - 23.8 71.3-93.3 62.6 - 84.3 165-203 70.5 - 88.5 184 - 240 30.6 - 72.9 26.0 - 46.7 20.6 - 29.4 4190-5380 MRAD-17 87.5 29.3 - 136 A

(1) Detector G I is slightly biased high for Th-230 based measurements used only for ERA Gross Alpha samples. NCR 12-05 (2) The Sr-89 found to known ratio was 1.19, which TBE considers acceptable. It appears the aliquot was entered incorrectly for the Gross Beta NCR 12-13

-4)

Teledyne Brown Engineering reported result.

(b) The ERA known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

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

E-4

TABLE E-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

TELEDYNE BROWN ENGINEERING, 2012 (PAGE 1 OF 2)

Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a)

Value (b)

Range Evaluation (c)

March 2012 12-MaW26 12-GrW26 12-MaS26 12-RdF26 12-GrF26 12-RdV26 September 2012 12-MaW27 12-GrW27 Water Cs-134 Cs-137 Co-57 Co-60 H-3 Mn-54 K-40 Sr-90 Zn-65 Water Gr-A Gr-B Soil Cs-134 Cs-1 37 Co-57 Co-60 Mn-54 K-40 Sr-90 Zn-65 AP Cs-134 Cs-1 37 Co-57 Co-60 Mn-54 Sr-90 Zn-65 AP Gr-A Gr-B Vegetation Cs-1 34 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Water Cs-134 Cs-137 Co-57 Co-60 H-3 Mn-54 K-40 Sr-90 Zn-65 Water Gr-A Gr-B Bq/L

-0.0045 Bq/L 37.5 39.9 Bq/L 30.8 32.9 Bq/L 22.4 23.72 Bq/L 456 437 Bq/L 31.0 31.8 Bq/L 144 142 Bq/L

-0.0084 Bq/L

-0.369 Bq/L 2.06 2.14 Bq/L 7.48 6.36 Bq/kg 831 828 Bq/kg 0.145 Bq/kg 1270 1179 Bq/kg 7.61 1.56 Bq/kg 634 558 Bq/kg 1690 1491 Bq/kg 328 392 Bq/kg 753 642 Bq/sample 2.31 2.38 Bq/sample 2.15 1.79 Bq/sample -0.0701 Bq/sample 2.62 2.182 Bq/sample 4.13 3.24 Bq/sample 0.0185 Bq/sample 4.19 2.99 Bq/sample 0.365 1.2 Bq/sample 2.31 2.4 Bq/sample 8.72 8.43 Bq/sample 0.0424 Bq/sample 15.5 12.0 Bq/sample 6.80 6.05 Bq/sample 0.0057 Bq/sample 2.24 2.11 Bq/sample 10.5 8.90 Bq/L 21.4 23.2 Bq/L 17.0 16.7 Bq/L 28.7 29.3 Bq/L 0.179 Bq/L 387 334 Bq/L 18.1 17.8 Bq/L 139 134 Bq/L 19.6 12.2 Bq/L 27.2 25.9 Bq/L 0.966 1.79 Bq/L 10.0 9.1 (1) 27.9-51.9 23.0 -42.8 16.60 - 30.84 306 - 568 22.3 -41.3 99-185 (1)

(1) 0.64 - 3.64 3.18-9.54 580- 1076 (1) 825-1533 (2) 391 -725 1044-1938 274 - 540 449 - 835 1.67 - 3.09 1.25-2.33 (1) 1.527 - 2.837 2.27-4.21 (1) 2.09 - 3.89 0.4-2.0 1.2-3.6 5.90- 10.96 (1) 8.4-15.6 4.24 - 7.87 (1) 1.48-2.74 6.23-11.57 16.2-30.2 11.7-21.7 20.5-38.1 (1) 234 - 434 12.5-23.1 94 - 174 8.5-15.9 18.1 -33.7 0.54 - 3.04 4.6-13.7 A

A A

N (3)

A A

A A

A W

A W

W A

N (3)

A A

A A

W A

A A

A A

A A

A A

A A

N (4)

A A

A A

A A

A A

A A

A A

A A

E-5

TABLE E-3 DOE'S MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

TELEDYNE BROWN ENGINEERING, 2012 (PAGE 2 OF 2)

Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a)

Value (b)

Range Evaluation (c)

September 2012 12-MaS27 Soil Cs-134 Cs-137 Co-57 Co-60 Mn-54 K-40 Sr-90 Zn-65 12-RdF27 12-GrF27 12-RdV27 AP Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 AP Gr-A Gr-B Vegetation Cs-134 Cs-137 Co-57 Co-60 Mn-54 Sr-90 Zn-65 Bq/kg 880 939 Bq/kg 1220 1150 Bq/kg 1330 1316 Bq/kg 552 531 Bq/kg 1000 920 Bq/kg 674 632 Bq/kg 528 508 Bq/kg 665 606 Bq/sample 2.760 2.74 Bq/sample 0.0415 Bq/sample 2.00 191.00 Bq/sample 1.78 1.728 Bq/sample 2.40 2.36 Bq/sample 0.931 1.03 Bq/sample

-0.688 Bq/sample 0.434 0.97 Bq/sample 1.927 1.92 Bq/sample 6.28 6.51 Bq/sample 4.62 4.38 Bq/sample 6.51 5.66 Bq/sample 5.32 5.12 Bq/sample 3.59 3.27 Bq/sample 0.0012 Bq/sample

-0.046 657-1221 805-1495 921-1711 372 - 690 644 - 1196 442 - 822 356 - 660 424 - 788 1.92-3.56 (1) 1.34-2.48 1.210 - 2.246 1.65 - 3.07 0.72-1.34 (1) 0.29 - 1.65 0.96 - 2.88 4.56 - 8.46 3.07-5.69 3.96 - 7.36 3.58 - 6.66 2.29 - 4.25 (1)

(1)

A A

A A

A A

A A

A A

A A

A A

A A

A A

A A

A A

A A

(1) False positive test.

(2) Sensitivity evaluation (3) No cause was found for the failed high soil Co-60 sensitivity test or the high Zn-65 in AP, which TBE considers an anomaly. NCR 12-08 (4) Sr-90 in water high due to incorrect aliquot entered in LIMS. 12-11 (a) Teledyne Brown Engineering reported result.

(b) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

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

E-6

TABLE E-4 ERA (a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAMa ENVIRONMENTAL, INC., 2012 (Page 1 of 1)

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1783 04/09/12 Sr-89 ERW-1783 04/09/12 Sr-90 ERW-1786 ERW-1786 ERW-1786 ERW-1786 ERW-1786 04/09/12 04/09/12 04/09/12 04/09/12 04/09/12 Ba-133 Co-60 Cs-134 Cs-137 Zn-65 Gr. Alpha Gr. Beta ERW-1 789 04/09/12 ERW-1789 d 04/09/12 ERW-1798 04/09/12 H-3 ERW-6283 10/05/12 Sr-89 ERW-6283 10/05/12 Sr-90 62.2 +/- 6.0 33.7 +/- 2.1 75.7 +/- 4.1 71.9 +/- 4.0 70.0 +/- 4.3 151.5 +/- 6.1 108.3 +/- 89.0 55.0 +/- 2.4 76.2 +/- 1.8 16023 +/- 355 41.5 +/- 4.1 19.7 +/- 1.6 82.7 +/- 4.4 77.2 +/- 3.7 74.4 +/- 1.5 183.0 +/- 6.2 211.0 +/- 9.9 47.0 +/- 2.3 33.4 +/- 1.2 82.3 72.9 74.2 155.0 105.0 69.1 65.6 60.6 140.0 94.5 58.5 46.9 - 66.3 37.4 27.4 - 43.1 62.9 33.0 - 78.0 44.2 29.6 - 51.5 15800 13800 -17400

- 90.5

- 82.6

-81.6

- 172.0

- 125.0 Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass 39.1 20.1 29.7 - 46.1 14.4 - 23.8 ERW-6286 ERW-6286 ERW-6286 ERW-6286 ERW-6286 10/05/12 10/05/12 10/05/12 10/05/12 10/05/12 Ba-133 Co-60 Cs-1 34 Cs-137 Zn-65 84.8 71.3 - 93.3 78.3 70.5 - 88.5 76.6 62.6 - 84.3 183.0 165.0 - 203.0 204.0 184.0 - 240.0 58.6 30.6 - 72.9 39.2 26.0 - 46.7 24.8 20.6 - 29.4 ERW-6288 10/05/12 Gr. Alpha ERW-6288 10/05/12 Gr. Beta ERW-6290 10/05/12 1-131 23.3 +/- 1.0 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 Result of reanalysis: 38.3 +/- 1.3 pCi/L. Sample dilution problem suspected. A new dilution was prepared.

E-7

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

ENVIRONMENTAL, INC., 2012 (Page 1 of 2)

Concentration a Known Control Lab Code )

Date Analysis

-oratory result Activity Limits c Acceptance STSO-1766 STSO-1766 STSO-1766 STSO-1766 STSO-1 766 STSO-1 766 STSO-1766 STSO-1 766 STAP-1 772 STAP-1772 STAP-1 772 STAP-1772 STAP-1 772 STAP-1 772 STAP-1772 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Sr-90 Zn-65 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Sr-90 Zn-65 1352.10 +/- 4.00 1.70 +/- 0.70 842.20 +/- 4.30 0.40 +/- 0.90 1729.60 +/- 22.20 647.60 +/- 4.20 383.20 +/- 15.30 766.70 +/- 6.70 0.010 +/- 0.01 2.40 +/- 0.08 2.33 +/- 0.13 2.07 +/- 0.10 3.77 +/- 0.14

-0.010 +/- 0.060 3.67 +/- 0.20 1179.00 1.56 828.00 0.00 1491.00 558.00 392.00 642.00 0.00 2.18 2.38 1.79 3.24 0.000 2.99 825.00 - 1533.00 1.00 -2.00 580.00 - 1076.00 0.00 -1.00 1044.00 - 1938.00 391.00 - 725.00 274.00 - 510.00 449.00 - 835.00 0.000 - 1.00 1.53 -2.84 1.67 - 3.09 1.25 - 2.33 2.27 - 4.21

-0.10 -0.13 2.09 - 3.89 STAP-1773 02/01/12 Gr. Alpha STAP-1 773 02/01/12 Gr. Beta 0.51 +/- 0.05 2.75 + 0.10 1.20 2.40 0.40 - 2.00 1.20 - 3.60 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STVE-1 776 STVE-1776 STVE-1776 STVE-1776 STVE-1 776 STVE-1776 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 Co-57 Co-60 Cs-1 34 Cs-137 Mn-54 Zn-65 STW-1960 02/01/12 Gr. Alpha STW-1960 02/01/12 Gr. Beta 14.57 +/- 0.28 6.45 +/- 0.23 8.39 +/- 0.29 0.01 +/- 0.09 0.03 +/- 0.08 10.31 +/- 0.67 1.68 +/- 0.09 6.33 +/- 0.10 33.30 +/- 0.40 23.20 +/- 0.40 0.30 +/- 3.00 40.10 +/- 0.60 460.00 +/- 12.10 153.00 +/- 4.20 32.70 +/- 0.60 0.10 +/- 0.20 0.01 +/- 0.20 12.00 6.05 8.43 0.00 0.00 8.90 2.14 6.36 32.90 23.72 0.00 39.90 437.00 142.00 31.80 0.00 0.00 8.40 - 15.60 4.24 - 7.87 5.90 - 10.96 0.00 -0.10 0.00 -0.10 6.23-11.57 0.64 - 3.64 3.18 -9.54 23.00 - 42.80 16.60 - 30.84 0.00 - 1.00 27.90 - 51.90 306.00 - 568.00 99.00 - 185.00 22.30 - 41.30 0.00-1.00 0.00 - 1.00 STW-1964 STW-1 964 STW-1964 STW-1964 STW-1964 STW-1964 STW-1964 STW-1964 STW-1964 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 02/01/12 Co-57 Co-60 Cs-1 34 Cs-1 37 H-3 K-40 Mn-54 Sr-90 Zn-65 E,-8

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

ENVIRONMENTAL, INC., 2012 (Page 2 of 2)

Concentration a Known Control Lab Code b Date Analysis oratory result Activity Limits '

Acceptance STSO-5392 08/01/12 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STSO-5394 STVE-5395 a STVE-5395 STVE-5395 STVE-5395 STVE-5395 STAP-5398 STAP-5398 STAP-5403 STAP-5403 STAP-5403 STAP-5403 STAP-5403 STAP-5403 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 Sr-90 Co-57 Co-60 Cs-134 Cs-1 37 K-40 Mn-54 Zn-65 Co-57 Co-60 Cs-134 Cs-137 Mn-54 483.52 +/- 16.47 1528.00 +/- 4.10 592.00 +/- 3.20 933.60 +/- 5.82 1319.80 +/- 5.50 737.30 +/- 17.70 1083.20 +/- 5.20 696.10 +/- 7.00 508.00 1316.00 531.00 939.00 1150.00 632.00 920.00 606.00 356.00 - 660.00 921.00 -1711.00 372.00 - 690.00 657.00 - 1221.00 805.00 - 1495.00 442.00 - 822.00 644.00 - 1196.00 424.00 - 788.00 08/01/12 Gr. Alpha 08/01/12 Gr. Beta 7.44 +/- 0.17 5.90 +/- 0.15 7.40 +/- 0.31 5.45 +/- 0.18 4.06 +/- 0.21 0.41 +/- 0.05 2.11 +/- 0.09 1.96 +/- 0.05 1.76 +/- 0.07 2.74 +/- 0.18 0.00 +/- 0.03 2.52 +/- 0.10 0.01 +/- 0.06 5.66 5.12 6.51 4.38 3.27 0.97 1.92 1.91 1.73 2.74 0.00 2.36 0.00 3.96 -7.36 3.58 -6.66 4.56 -8.46 3.07 -5.69 2.29 -4.25 0.29 -1.65 0.96 -2.88 Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 08/01/12 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Zn-65 1.34 -2.48 1.21 -2.25 1.92 -3.56

-0.01 -0.01 1.65-3.07

-0.010 - 0.010 a Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

b Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (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.

d Result of reanalysis; 6.74 +/- 0.15 Bq/sample. Gamma emitters for the vegetation matrix exhibited a high bias, only Co-57 exceeded acceptance limits. Recounted using a geometry more closely matched to the MAPEP sample size.

E-9

APPENDIX F ERRATA DATA

Errata Data 2012 F-i

In 2012, four factors where discovered that impacted the errata data. Those factors are listed as follows:

1. The fish sample point #4 was omitted on REMP maps in 2010 and 2011.

2. On the 2010 REMP map, Farm 11 is misidentified as Farm 12.

3. On the 2010 REMP map, Farm 14 is misidentified as WNWM.

4. Review of the 2012 REMP report number 69, identified that attached Annual Radiological Groundwater Protection Program Report dated May 2012 documented for the period 1 January 2010 through 31 December 2011. This was an annual report and should have been documented for the year 2011.

F-2

APPENDIX G ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

Docket No:

50-277 50-278 PEACH BOTTOM ATOMIC POWER STATION UNITS 2 and 3 Annual Radiological Groundwater Protection Program Report 1 January 2012 Through 31 December 2012 Prepared By Teledyne Brown Engineering Environmental Services SExelon Generation, Peach Bottom Atomic Power Station Delta, PA 17314 May 2013

Table of Contents I. Sum mary and Conclusions..............................................................................................

1 II. Introduction.............................................................................................................

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

3 B. Im plem entation of the Objectives....................................................................

4 C. Program Description.......................................................................................

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

5 I1l. Program Description...................................................................................................

6 A. Sam ple Analysis..............................................................................................

6 B. Data Interpretation...........................................................................................

6 C. Background Analysis.......................................................................................

7 IV. Results and Discussion...........................................................................................

10 A. Groundwater Results....................................................................................

10 B. Surface W ater Results..................................................................................

11 C. Precipitation W ater Results...........................................................................

12 D. Drinking W ater W ell Survey.........................................................................

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

12 F. Leaks, Spills, and Releases...........................................................................

12 G. Trends.........................................................................................................

12 H. Investigations.................................................................................................

13 I. Actions Taken................................................................................................

15 J. Deviations.....................................................................................................

15 V. References...................................................................................................................

16

Appendices Appendix A Tables Table A-1 Figures Figure A-1 Figure A-2 Appendix B Tables Table B-1.1 Table B-1.2 Table B-1.3 Table B-11.1 Table B-11.2 Table B-Ill.1 Sampling Locations, Distance and Direction Radiological Groundwater Protection Program - Sampling Locations, Distance and Direction, Peach Bottom Atomic Power Station, 2012 Well Water Locations, Peach Bottom Atomic Power Station, 2012 RGPP Monitoring Locations, Peach Bottom Atomic Power Station, 2012 Data Tables Concentrations of Tritium, Strontium, Gross Alpha and Gross Beta in Groundwater and Seep Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2012.

Concentrations of Gamma Emitters in Groundwater and Seep Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2012.

Concentrations of Hard-to-Detects in Groundwater Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2012.

Concentrations of Tritium in Surface Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2012.

Concentrations of Gamma Emitters in Surface Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2012.

Concentrations of Tritium in Precipitation Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2012.

ii

I.

Summary and Conclusions This report on the Radiological Groundwater Protection Program (RGPP) conducted for the Peach Bottom Atomic Power Station (PBAPS) by Exelon Nuclear covers the period 01 January 2012 through 31 December 2012. This evaluation involved numerous station personnel and contractor support personnel. At Peach Bottom Atomic Power Station, there are 31 permanent groundwater monitoring wells. Installation of the wells began in 2006. Of these monitoring locations, none were assigned to the station's Radiological Environmental Monitoring Program (REMP). This is the sixth in a series of annual reports on the status of the Radiological Groundwater Protection Program (RGPP) conducted at Peach Bottom Atomic Power Station. This report covers groundwater, surface water and seep water samples collected from the environment on station property in 2012. During that time period, 1,479 analyses were performed on more than 312 samples from 40 locations. These 40 locations include 27 groundwater monitoring wells, 3 surface water sample points, 3 groundwater seeps and 2 yard drain sumps (groundwater) and 5 precipitation water sampling points. Phase 1 of the monitoring was part of a comprehensive study initiated by Exelon to determine whether groundwater or surface water in the vicinity of Peach Bottom Atomic Power Station had been adversely impacted by any releases of radionuclides. Phase 1 was conducted by Conestoga Rovers and Associates (CRA) and the conclusions were made available to state and federal regulators as well as the public. Phase 2 of the RGPP was conducted by Exelon corporate and station personnel to initiate follow up of Phase 1 and begin long-term monitoring at groundwater and surface water locations selected during Phase 1. All analytical results from Phase 2 monitoring are reported herein.

In assessing all the data gathered for this report, it was concluded that the operation of Peach Bottom Atomic Power Station had no adverse radiological impact on the environment and there are no known active releases into the groundwater at Peach Bottom Atomic Power Station.

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 the Offsite Dose Calculation Manual (ODCM) in any of the groundwater or surface water samples. In the case of tritium, Exelon specified that its laboratories achieve a lower limit of detection 10 times lower than that required by federal regulation.

Strontium-89 and strontium-90 were not detected in any of the samples. (Table B-1.1, Appendix B).

Tritium was detected in one groundwater location at concentrations greater than the United States Environmental Protection Agency (USEPA) drinking water 1

standard (and the Nuclear Regulatory Commission Reporting Limit) of 20,000 pCi/L. Low levels of tritium were detected at concentrations greater than the minimum detectable concentration (MDC) in 12 of 27 groundwater monitoring wells. The tritium concentrations ranged from 166 +/- 107 pCi/L to 23,100 +/- 2,350 pCi/L. Tritium was not detected at concentrations greater than the MDC in any surface water, seep water or precipitation water sample locations. Based on the sample data tritium is not migrating off the station property at detectable concentrations. No tritium was detected in any surface water samples (Table B-11.1, Appendix B). No tritium was detected in any precipitation water samples (Table B-Ill.1, Appendix B).

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater samples during 2012. Gross Alpha (dissolved) was detected in 8 of 25 groundwater locations analyzed. The concentrations ranged from 0.7 to 10.8 pCi/L. Gross Alpha (suspended) was detected in 2 of 25 groundwater locations analyzed, both at a concentration of 2.3 pCi/L. Gross Beta (dissolved) was detected in all 25 groundwater locations analyzed. The concentrations ranged from 1.9 to 19.0 pCi/L. Gross Beta (suspended) was detected in 4 of 25 groundwater locations analyzed. The concentrations ranged from 1.9 to 2.9 pCi/L. The activity detected is consistent with historical levels.

Hard-To-Detect analyses were performed on a select group of groundwater and surface water locations to establish baseline levels. The analyses for groundwater included Fe-55, Ni-63, Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-234, U-235 and U-238. U-234 was detected in 9 of 24 groundwater monitoring locations. The concentrations ranged from 0.21 to 13.70 pCi/L. U-238 was detected in 8 of 24 groundwater monitoring locations. The concentrations ranged from 0.25 to 10.75 pCi/L. U-235 was detected in 2 of 25 groundwater monitoring locations. The concentrations ranged from 0.17 to 0.59 pCi/L. No plant produced radionuclides were detected.

2

II.

Introduction Peach Bottom Atomic Power Station (PBAPS) is located along the Susquehanna River between Holtwood and Conowingo Dams in Peach Bottom Township, York County, Pennsylvania. The initial loading of fuel into Unit 1, a 40 MWe (net) high temperature gas-cooled reactor, began on 5 February 1966, and initial criticality was achieved on 3 March 1966. Shutdown of Peach Bottom Unit 1 for decommissioning was on 31 October 1974. For the purposes of the monitoring program, the beginning of the operational period for Unit 1 was considered to be 5 February 1966. A summary of the Unit 1 preoperational monitoring program was presented in a previous report (1). PBAPS Units 2 and 3 are boiling water reactors, each with a power output of approximately 1170 MWe. The first fuel was loaded into Peach Bottom Unit 2 on 9 August 1973. Criticality was achieved on 16 September 1973 and full power was reached on 16 June 1974. The first fuel was loaded into Peach Bottom Unit 3 on 5 July 1974. Criticality was achieved on 7 August 1974 and full power was first reached on 21 December 1974.

Preoperational summary reports (2)(3) for Units 2 and 3 have been previously issued and summarize the results of all analyses performed on samples collected from 5 February 1966 through 8 August 1973.

This report covers those analyses performed by Teledyne Brown Engineering (TBE) on samples collected in 2012.

A.

Objective of the RGPP The objectives of the RGPP are as follows:

1. Ensure that the site characterization of geology and hydrology provides an understanding of predominant ground water gradients based upon current site conditions.

2. Identify site risk based on plant design and work practices.

3. Establish an on-site ground water monitoring program to ensure timely detection of inadvertent radiological releases to ground water.

4. Establish a remediation protocol to prevent migration of licensed material off-site and to minimize decommissioning impacts.

5. Ensure that records of leaks, spills, remediation efforts are retained and retrievable to meet the requirements of 10 CFR 50.75(g).

6. Conduct initial and periodic briefings of their site specific Groundwater Protection Initiative (GPI) program with the designated State/Local officials.

3

7. Make informal communication as soon as practicable to appropriate State/Local officials, with follow-up notifications to the NRC, as appropriate, regarding significant on-site leaks/spills into ground water and on-site or off-site water sample results exceeding the criteria in the REMP as described in the OCDM.

8. Submit a written 30-day report to the NRC for any water sample result for on-site ground water that is or may be used as a source of drinking water that exceeds any of the criteria in the licensee's existing REMP/ODCM for 30-day reporting of off-site water sample results.

9. Document all on-site ground water sample results and a description of any significant on-site leaks/spills into ground water for each calendar year in the Annual Radiological Environmental Operating Report (AREOR) for REMP or the Annual Radioactive Effluent Release Report (ARERR) for the RETS as contained in the appropriate Site reporting procedure.

10. Perform a self-assessment of the GPI program.

11. Conduct a review of the GPI program, including at a minimum the licensee's self assessments, under the auspices of NEI.

B.

Implementation of the Objectives The objectives identified have been implemented at Peach Bottom Atomic Power Station via Corporate and Site specific procedures. These procedures include:

1.

EN-AA-407, Response to Inadvertent Releases of Licensed Materials to Groundwater, Surface Water or Soil.

2.

EN-AA-408, Radiological Groundwater Protection Program

3.

EN-AA-408-4000, Radiological Groundwater Protection Program Implementation.

4.

EN-PB-4084160, Peach Bottom RGPP Reference Material.

C.

Program Description

1.

Sample Collection Sample locations can be found in Table A-1 and Figures A-1 and A-2, Appendix A.

4

Groundwater, Surface Water and Precipitation Water Samples of water are collected, managed, transported and analyzed in accordance with approved procedures. 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, industry cross-check programs, as well as nuclear industry audits. Station personnel review and evaluate all analytical data deliverables as data are received.

Analytical data results are reviewed by both station personnel and an independent hydro geologist for adverse trends or changes to 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.

5

Tritium has a half-life of approximately 12.3 years. It decays spontaneously to helium-3 (He-3). 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 emits a low energy beta particle 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 and EIML to analyze the environmental samples for radioactivity for the Peach Bottom Atomic Power Station RGPP in 2012.

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 'hard-to-detect' isotopes (Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-233/234, U-235, U-238, Fe-55 and Ni-63) in groundwater. These analyses are required based on tritium results.

B.

Data Interpretation The radiological data collected prior to Peach Bottom Atomic Power Station becoming operational were used as a baseline with which these operational data were compared. For the purpose of this report, Peach Bottom Atomic Power Station was considered operational at initial criticality. Several factors were important in the interpretation of the data:

1.

Lower Limit of Detection The lower limit of detection (LLD) is a minimum sensitivity value that must be achieved routinely by the analytical parameter.

6

2.

Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium in environmental samples is frequently on the order of 50% of the 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 12 nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, 1-131, 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 and foodstuffs. The results of the monitoring were detailed in the report entitled Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, September 1970- August 1973, January 1974 and Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, June 1977. The pre-operational REMP contained analytical results from samples collected from the surface water, discharge, well and rain water.

7

1.

Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others. Additional detail may be found by consulting references (CRA 2006).

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 worldwide from 1960 to 2006.

RadNet provides tritium precipitation concentration data for samples collected at stations throughout the U.S. from 1960 8

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 have typically been 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. Water from previous years and decades is naturally captured in groundwater, so some well water sources today are affected by the surface water from the 1960s that was elevated in tritium.

c.

Surface Water Data Surface water level measurements were collected at the surface water monitoring locations during the groundwater level measurement event. The purpose of the surface water monitoring was to provide surface water elevation data to evaluate the groundwater/surface water interaction at the Station.

The USEPA RadNet surface water data typically has a reported 'Combined Standard Uncertainty' of 35 to 50 pCi/L.

According to USEPA, this corresponds to a +/- 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.

9

IV.

Results and Discussion A.

Groundwater Results Groundwater Samples were collected from on-site wells throughout the year in accordance with the station radiological groundwater protection program. Analytical results and anomalies are discussed below.

Tritium Samples from 27 locations were analyzed for tritium activity (Table B-1.1, Appendix B). Tritium values ranged from the detection limit to 23,100 pCi/I. Within the station boundary, concentrations of tritium in shallow groundwater reached 23,100 pCi/L. The existing wells at or near the owner-controlled boundary showed no tritium.

The location most representative of potential offsite user of drinking water is less than the MDC (Table B-I.1, Appendix B).

Strontium Strontium-89 and strontium-90 were not detected in any of the samples. (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 2012. Gross Alpha (dissolved) was detected in 8 of 25 groundwater locations analyzed. The concentrations ranged from 0.7 to 10.8 pCi/L. Gross Alpha (suspended) was detected in 2 of 25 groundwater locations analyzed, both at a concentration of 2.3 pCi/L. Gross Beta (dissolved) was detected in 25 groundwater locations analyzed. The concentrations ranged from 1.9 to 19.0 pCi/L. Gross Beta (suspended) was detected in 4 of 25 groundwater locations analyzed. The concentrations ranged from 1.9 to 2.9 pCi/L. The activity detected is naturally occurring and the levels are considered to be background.

10

Hard-To-Detect Hard-To-Detect analyses were performed on a select group of groundwater and surface water locations to establish baseline levels. The analyses for groundwater included Fe-55, Ni-63, Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-234, U-235, and U-238. U-234 was detected in 9 of 24 groundwater monitoring locations. The concentrations ranged from 0.21 to 13.70 pCi/L.

U-238 was detected in 8 of 24 groundwater monitoring locations.

The concentrations ranged from 0.25 to 10.75 pCi/L. U-235 was detected in 2 of 24 groundwater monitoring locations. The concentrations ranged from 0.17 to 0.59 pCi/L. The activity detected is naturally occurring and the levels are considered to be background (Table B-1.3, Appendix B).

Gamma Emitters No power-production gamma emitters were detected in any of the samples (Table B-1.2, Appendix B).

B.

Surface Water Results Surface Water Samples were collected from surface water locations throughout the year in accordance with the station radiological groundwater protection program. Analytical results are discussed below.

Tritium Samples from three locations were analyzed for tritium activity.

Tritium was not detected in any samples (Table B-11.1, Appendix B).

Gamma Emitters No power-production gamma emitters were detected in any of the samples. No other gamma emitting nuclides were detected (Table B-11.2, Appendix B).

11

C.

Precipitation Water Results Precipitation Water Samples were collected at five locations (1A, 1B, 1S, 1Z, and 4M).

The following analysis was performed:

Tritium Samples from five locations were analyzed for tritium activity. Tritium activity was not detected in any samples (Table B-Ill.1, Appendix B).

D.

Drinking Water Well Survey A drinking water well survey was conducted during the summer 2006 by CRA (CRA 2006) around the Peach Bottom Atomic Power Station. The water well inventory was updated in 2012. The updated water well database search indicated a new water well off Station property within a one mile radius of the Station. The well is described as a "test" well and its use is listed as "unused". In summary, there were no significant changes in off Station groundwater use from 2006-2012.

E.

Summary of Results - Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE and Environmental Inc. (Midwest Labs) are presented in the AREOR.

F.

Leaks, Spills and Releases There were no leaks, spills or releases of water containing licensed material to environment in 2012.

G.

Trends A tritium plume has been identified northeast of the Unit 3 Turbine Building. The plume extends eastward toward well MW-PB-4. The plume is bounded on the north by wells MW-PB-12 and MW-PB-22. The plume is bounded on the south by wells MW-PB-20 and MW-PB-21.

Wells MW-PB-4, 24, 25, 26 and 27 were each sampled and analyzed 29 times during 2012. On 24 occasions, MW-PB-25 samples had the highest tritium activity. MW-PB-27 had the highest activity 4 times and MW-PB-24 had the highest activity 1 time.

12

Well MW-PB-27 ended 2012 with the highest tritium activity. MW-PB-26 and 27 are south of MW-PB-25. A buried piping inspection that required dewatering of an excavation began in November and completed in December 2012. The excavation was about 300' southeast of wells MW-PB-24, 25, 26 and 27. The dewatering of the excavation resulted in the southward migration of the tritium plume. This was an anticipated condition based on the location of the excavation relative to the wells and the hydrogeologic characteristics of the area.

Prior to the dewatering activity, all wells exhibited decreasing trends during 2012. An increased sampling frequency was implemented to monitor changes in well activity due to the dewatering process. It is expected that well activity will return to pre-dewatering tritium levels.

H.

Investigations MW-PB-4 In 2006, monitoring wells MW-PB-1 through MW-PB-14 were installed.

Tritium activity was detected in MW-PB-4, located north of the Unit 3 Circulating Water Pump Structure and MW-PB-1 2, north of the Administration Building. Groundwater flow on site is from west to east.

Monitoring wells were installed to the west, southwest and northwest of monitoring wells MW-PB-4 and MW-PB-12. The wells with the highest tritium activity are the wells installed directly east of and adjacent to the Unit 3 Turbine Building, wells MW-PB-24, 25, 26 and 27.

Investigation of potential sources identified that the likely source of groundwater contamination was due to degraded floor seams in the Unit 3 Turbine Building Moisture Separator area 116' elevation. Leaks internal to the building entered the groundwater through the degraded floor seams.

The floor seams were repaired in August 2010. The floor in the Unit 3 Turbine Building Moisture Separator area 116' elevation was sealed and recoated in October 2011. Monitoring well activity has been decreasing since floor seam repairs were completed.

MW-PB-29, 30 and 31 An extent-of-condition inspection of the Unit 2 Turbine Building Moisture Separator area 116' elevation floor was performed in October 2010. Minor degradation of the floor seams was identified and repaired. In May 2011, monitoring wells MW-PB-29 and 30 were installed directly east of and adjacent to the Unit 2 Turbine Building; MW-PB-31 was installed southeast of and adjacent to the Unit 2 Turbine Building. These wells 13

were installed to determine if a condition exists east of the Unit 2 Turbine Building that is similar to the condition east of the Unit 3 Turbine Building.

Wells MW-PB-29, 30 and 31 were sampled a total of 22 times in 2012.

Tritium activity in the wells ranged from less than the MDC 1,450 +/- 220 pCi/L. Samples from these wells were also analyzed for gamma emitting isotopes and hard to detect radionuclides. All results were less than the MDC for each isotope.

The Unit 2 Turbine Building Moisture Separator area 116' elevation floor was sealed and recoated in October 2012. Additionally, about 3' of water was identified in a ventilation pit on the east side of the floor. A sample of the water was analyzed for tritium by Station Chemistry. The sample identified tritium at 9,910 pCi/L. The bottom of the pit is at the 107' 3" elevation. The groundwater elevation in well MW-PB-30, located about 5' south of the external wall of the pit, has ranged from 108-74' to 110.12'.

Degraded seams in the pit were repaired and the pit was sealed. There is currently no standing water in the pit.

MW-PB-4, 24, 25, 26 and 27 Wells MW-PB-4, 24, 25, 26 and 27 are considered the wells of primary interest and were sampled on a frequency that ranged from weekly to quarterly. Below are 2 tables. The first lists the highest tritium activity of the wells of primary interest and the date of the sampling. The second table lists the tritium activity of the wells from the last sampling of 2012.

The tritium activity is in pCi/L.

Well #

Tritium Activity Date MW-PB-4 17,200 5/24/2010 MW-PB-24 33,500 3/15/2010 MW-PB-25 161,000 3/8/2010 MW-PB-26 196,000 3/8/2010 MW-PB-27 71,800 2/22/2010 Well #

Tritium Activity Date MW-PB-4 1,230 12/26/2012 MW-PB-24 229 12/26/2012 MW-PB-25 2,100 12/26/2012 MW-PB-26 1,640 12/26/2012 MW-PB-27 9,640 12/26/2012 Potential sources of tritium in the groundwater were investigated via procedural processes and documented in the corrective action program.

14

The most likely pathway for tritium to enter the groundwater was determined to be leaks internal to the Unit 3 Turbine Building Moisture Separator 116', migrating through degraded floor seams. The floor seams were repaired and the entire floor was sealed and a coating applied during the refuel outage in the fall of 2011. The wells have been on a decreasing trend since these repairs were completed.

Actions Taken

1. Compensatory Actions Wells, MW-PB-4, 20, 21, 22, 24, 25, 26, 27, 29 and 30 were sampled and analyzed for tritium on a weekly to quarterly frequency. These wells were sampled on a frequency greater than that required by Station procedures, when determined to be necessary to evaluate potential changes in tritium activity. The increased sample frequency was performed to monitor the effectiveness of repairs completed in the Unit 3 Turbine Building and to monitor potential changes in the tritium plume due to dewatering of the excavation used for the buried pipe inspection.

Intake and discharge canal water and domestic water were sampled on a weekly to biweekly frequency in 2012. There has been no detectable tritium in the intake and discharge canal water or in the domestic water samples.

2. Installation of Monitoring Wells No groundwater monitoring wells were installed in 2012.

3. Actions to Recover/Reverse Plumes There were no actions to recover the plume. As previously described, dewatering of a buried pipe excavation resulted in a southward migration of the tritium plume.

J.

Deviations The data tables show that duplicate samples were obtained at several wells during 2012. These duplicate samples were obtained and analyzed for quality control purposes.

There are no additional deviations to report.

15

V.

References

1. Conestoga Rovers and Associates, Fleetwide Assessment, Peach Bottom Atomic Power Station, Delta, PA, Fleetwide Assessment, Rev. 1, September 1,2006.

2.

Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report units 2 and 3, June 1977.

3.

Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report units 2 and 3, September 1970-August 1973, January 1974.

4.

Conestoga Rovers and Associates, Hydrogeologic Investigation Report, Peach Bottom Atomic Power Station, November 2012.

5.

AMO Environmental Decisions, November 21, 2012, April 18, 2011, July and August 2012 RGPP Summary Monitoring Report (3 rd Quarter 2012).

16

APPENDIX A SAMPLING LOCATIONS, DISTANCE AND DIRECTION

TABLE A-1:

Radiological Groundwater Protection Program - Sampling Locations, Distance and Direction, Peach Bottom Atomic Power Station, 2012 Site Site Type MW-PB-1 MW-PB-2 MW-PB-3 MW-PB-4 MW-PB-5 MW-PB-6 MW-PB-7 MW-PB-8 MW-PB-9 MW-PB-10 MW-PB-11 MW-PB-12 MW-PB-13 MW-PB-14 MW-PB-15 MW-PB-16 MW-PB-17 MW-PB-18 MW-PB-19 MW-PB-20 MW-PB-21 MW-PB-22 MW-PB-24 MW-PB-25 MW-PB-26 MW-PB-27 MW-PB-28 MW-PB-29 MW-PB-30 MW-PB-31 SW-PB-1 SW-PB-5 SW-PB-6 SP-PB-1 SP-PB-2 SP-PB-3 U/2 YARD DRAIN SUMP U/3 YARD DRAIN SUMP 1A 1B is iz 4M Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Groundwater Well Surface Water Surface Water Surface Water Groundwater Seep Groundwater Seep Groundwater Seep Groundwater Groundwater Precipitation Water Precipitation Water Precipitation Water Precipitation Water Precipitation Water Sector SW WNW SSE ENE NNW NE SE SE SE SSE SE NNE NW S

SE SE SE SE NW E

E NE N

N NNE NNE NW SE SE SE NNW SE SE S

WNW NNW SSE WSW SE NW S

SE SE Distance (ft.)

1,166.6 309.0 709.7 350.2 1,146.1 1,072.4 813.9 1,167.0 2,816.9 1,125.1 438.4 317.2 329.4 1,231.2 1,087.9 1,101.6 1,005.4 1,010.0 226.8 260.5 363.3 315.4 185.9 159.7 121.1 139.1 249.6 325.0 379.2 450.1 2,850.5 675.1 1,305.9 514.2 311.6 1,281.1 498.7 175.8 1,396 2,587 1,315 1,396 45,989 A-1

0 1-MILE RADIUS Mt Johnson Island o

~-

~

IANT01. NCOW ICOPPER. ROGER jFNCVt WAERt HrOKORY.

MAcS LEGEND PROPERTY BOUNDARY ALL LOCATIONS APPROXIMATE (NOT FIELD VERIFIED) 7 IDENTIFIED ON 2006 SEARCH, NOT IDENTIFIED ON 2012 SEARCH

,ABANDONED 06 EXELON SUPPLY WELL (NON-POTABLE)

SOURCE-USGS QUADRANGLE AS HOLr*000, PA - 1 WVAKENELO, PA-IM OELTA. MID - 1966 CONOVRAiOO DAM. MO.1695M WATER WELL LOCATIONS PEACH BOTTOM ATOMIC POWER STATION EXELON GENERATION COMPANY, LLC Delto, Pennsylvania Figure A-1 Well Water Locations, Peach Bottom Atomic Power Station, 2012 A-2

1000 0

1000 Feet

1. RGWP Surface Water and Gvundwuer Sumpie Locaions Figure A-2 RGPP Monitoring Locations, Peach Bottom Atomic Power Station, 2012 A-3

APPENDIX B DATA TABLES

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma SITE COLLECTION DATE H-3 SR-89 SR-90 GR-A (DIS)

GR-A (SUS)

GR-B (DIS)

GR-B (SUS)

MW-PB-1 MW-PB-10 MW-PB-10 MW-PB-10 MW-PB-10 MW-PB-10 MW-PB-11 MW-PB-11 MW-PB-11 MW-PB-11 MW-PB-12 MW-PB-12 MW-PB-12 Mw-PB-12 MW-PB-12 MW-PB-12 MW-PB-13 MW-PB-13 MW-PB-13 MW-PB-13 MW-PB-14 MW-PB-15 MW-PB-15 MW-PB-15 MW-PB-15 MW-PB-15 MW-PB-1i MW-PB-15 MW-PB-16 MW-PB-16 MW-PB-16 MW-PB-16 MW-PB-19 MW-PB-19 MW-PB-1 9 MW-PB-19 MW-PB-19 MW-PB-2 MW-PB-2 MW-PB-2 MW-PB-2 MW-PB-2 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 05/09112 02/07/12 05/09/12 08/01/12 08/01/12 11/07/12 02/06/12 05/08/12 07/31/12 11/06/12 02/06/12 05/07/12 05/07/12 05/07/12 EIML 07/31/12 11/06112 02/07/12 05/08/12 08/01/12 11/06/12 05/09/12 02/07/12 02/07/12 02/07/12 EIML 05/09/12 08/01/12 11/07/12 11/07/12 02/08/12 05/09/12 08/01/12 11/07/12 02/06/12 05/08/12 08/01/12 08/01/12 11/06/12 02/07/12 05/08/12 08/01/12 11/06/12 11/06/12 02/06/12 04/23/12 05/01/12 05/07/12 05/07/12 05/14/12 07/31/12 11/06/12 11/19/12 Recount 11/19/12

< 16b

< 194

< 168

< 181

< 178

< 170

< 192

< 167

< 181

< 163 292 +/- 134 335 +/- 122 254 +/- 120 272 +/- 88 268 +/- 121 248 +/- 117

< 199

< 170

< 180

< 168

< 169

< 198

< 199

< 143

< 173

< 182

< 168

< 169

< 197

< 166

< 190

< 166

< 183

< 166

< 175

< 177

< 171

< 196

< 167

< 182

< 170

< 170

< 193

< 164

< 168

< 192

< 161

< 188

< 183

< 168 241 + 129

< 180

< 4.3

< 0.4

< 2.1

< 4.2

< 0.5

< 0.6

< 0.7

< 0.7

< 0.7

< 0.8

< 4.2

< 4.4

< 0.5

< 0.5

< 0.4

< 0.6

< 4.8

< 0.5 10.8 +/- 2.9 < 1.3

< 5.0

< 0.5

< 0.6

< 0.5 11.9 +/- 1.7 < 1.5 3.0 +/- 0.8 < 1.5 2.1 +/- 0.8 < 1.5 1.9 +/- 0.8 < 1.8 16.8 +/- 3.1

< 3.8 9.3 +/- 1.2 < 1.5 7.4 +/- 1.0 2.3 +/- 1.1 3.4 +/- 0.8 < 1.5 13.8 +/- 1.2 < 1.5 9.5 +/- 2.0 < 2.6

< 4.3

< 0.4

< 5.0

< 0.7

< 4.5

< 0.4 6.3 + 1.1 2.3 +/- 0.9 0.7 +/-0.4 <0.5 3.6 +0.9

< 0.7

< 4.5

< 0.4

< 1.2

< 0.9 B-1

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma SITE COLLECTION DATE H-3 SR-89 SR-90 GR-A (DIS)

GR-A (SUS)

GR-B (DIS)

GR-B (SUS)

MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-20 MW-PB-21 MW-PB-21 MW-PB-21 MW-PB-21 MW-PB-21 MW-PB-21 MW-PB-21 MW-PB-21 MW-PB-21 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-22 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 11/27/12 12/03/12 12/10/12 12/17/12 12/26/12 02/06/12 05/07/12 07/31/12 11/06/12 11/27/12 12/03/12 12/10/12 12/17/12 12/26/12 02/06/12 05/07/12 05/07/12 05/14/12 07/31/12 07/31/12 11/06/12 11/19/12 11/19/12 Recount 11/27/12 12/03/12 12/10/12 12/17/12 12/26/12 01/03/12 01/09/12 01/16/12 01/23/12 01/30/12 02/06/12 02/13/12 02/20/12 02/27/12 03/05/12 03/05/12 Reanalys 03/12/12 03/19/12 03/26/12 04123/12 05/01/12 05/07/12 05/07/12 05/14/12 06/11/12 07/09/12 07/31/12 07/31/12 08/20/12

< 171

< 183

< 188

< 165

< 168 217 + 132

< 169

< 176

< 168

< 175

< 182

< 190

< 162

< 170 1300 +/- 185 1450 +/- 205 1460 +/- 200 1570 +/- 217 1310 +/- 194 1440 +/- 204 1060 +/- 166 1040 +/- 171 865 +/- 155 895 +/- 153 684 +/- 152 601 +/- 144 655 +/- 137 607 +/- 136 2540 +/- 305 1050 +/- 166 1130 +/- 176 372 +/- 135 500 +/- 131 386 +/- 123 497 +/- 139

< 182 260 +/- 124 3570 +/- 415 is 3870 +/- 428 2930 +/- 347 2760 +/- 325 3880 +/- 440 8540 +/- 913 6510 +/- 695 6200 +/- 668 5660 +/- 610 5530 +/- 602 5200 +/- 573 3800 +/- 430 6740 +/- 716 6340 +/- 677 6870 +/- 730

< 5.2

< 0.5

< 0.9

< 4.2

< 3.9

< 0.4

< 0.5

< 0.5

< 0.5

< 0.5

< 0.6

< 0.5 10.5 +/- 1.4 < 1.5 2.8 +/- 1.0 < 1.6 3.0 +/- 1.0 < 1.5 si B-2

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma SITE MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-24 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-25 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 COLLECTION DATE 09/17/12 09/17/12 Reanalysis 11/05/12 11/19/12 11/19/12 Recount 11/27/12 12/03/12 12/10/12 12/17/12 12/26/12 01/03/12 01/09/12 01/16/12 01/16/12 Reanalysis 01/23/12 01/30/12 02/06/12 02/13/12 02/20/12 02/27/12 03/05/12 03/12/12 03/19/12 03/26/12 04/23/12 05/01/12 05/07/12 05/07/12 05/14/12 06/11/12 07/09/12 07/31/12 08/20/12 09/17/12 11/05/12 11/19/12 11/19/12 Recount 11/27/12 12/03/12 12/03/12 Recount 12/03/12 Reanalysis 12/10/12 12/17/12 12/26/12 12/26/12 Recount 01/03/12 01/09/12 01/16/12 01/23/12 01/30/12 02/06/12 02/13/12 H-3 SR-89 SR-90 GR-A (DIS)

GR-A (SUS)

GR-B (DIS)

GR-B (SUS) 2020 +/- 267 1870 +/- 240 2190 +/- 264 605 +/- 146 337 +/- 128 250 +/- 120

178

190 294 +/- 117 229 +/- 115 22100 +/- 2250 23100 +/- 2350 8930 +/- 940 7330 +/- 783 20900 +/- 2130 18800 +/- 1920 18100 +/- 1850 20500 +/- 2080 20700 +/- 2100 17700 +/- 1820 11700 +/- 1220 10400 +/- 1090 12900 +/- 1330 9010 +/- 948 7460 +/- 788 8740 +/- 917 8390 +/- 886 7930 +/- 835

< 4.8 8490 +/- 895 9590 +/- 1010 12800 +/- 1330 10100 +/- 1050 13800 +/- 1420 10500 +/- 1100 6170 +/- 657 8460 +/- 889 7660 +/- 818 7610 +/- 808 783 +/- 156 793 +/- 161 715 +/- 155 1210 +/- 188 634 +/- 134 2100 +/- 258 2070 +/- 258 545 +/- 145 568 +/- 137 588 +/- 138 630 +/- 148 521 +/- 132 643 +/- 138 863 +/- 160 B-3

< 0.5

< 0.7

< 0.7 8.4 +/- 1.1

< 1.6

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma SITE COLLECTION DATE H-3 SR-89 SR-90 GR-A (DIS)

GR-A (SUS)

GR-B (DIS)

GR-B (SUS)

MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-26 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 02/20/12 02/27/12 03/05/12 03/12/12 03/19/12 03/26/12 04/23/12 05/01/12 05/07112 05/07/12 05/14/12 06/11/12 07/09/12 07/31/12 08/20/12 09/17/12 11/05/12 11/19/12 11/19/12 Recount 11/27/12 12/03/12 12/10/12 12/17/12 12/26/12 12/26/12 Reanalysis 01/03/12 01/09/12 01/16/12 01/23/12 01/30/12 02/06/12 02/06/12 02/06/12 EIML 02/13/12 02/13112 Recount 02/20/12 02/27/12 03/05/12 03/19/12 03/26/12 04/23/12 05/01/12 05/07/12 05/07/12 05/14/12 06/11/12 07/09/12 07/31/12 08/20/12 09/17/12 11/05/12 11/05/12 608 +/- 142 690 +/- 164 844 +/- 156 816 +/- 151 813 +/- 146 852 +/- 165 761 +/- 142 488 +/- 128 467 +/- 141 384 +/- 122

< 4.2 434 +/- 140 189 612 +/- 149 418 +/- 125 599 +/- 135 346 +/- 162 273 +/- 112 768 +/- 158 462 +/- 135 487 +/- 131 505 +/- 141 706 +/- 149 1140 +/- 168 1410 +/- 191 1640 +/- 218 1060 +/- 169 1160 +/- 178 1150 +/- 176 1410 +/- 197 1390 +/- 195 1860 +/- 238 1860 +/- 237 2099 +/- 157 2420 +/- 304 2250 +/- 283 1080 +/- 173 2350 +/- 297 1890 +/- 252 1370 +/- 192 1980 +/- 254 1910 +/- 242 1290 +/- 185 1720 +/- 232 1530 +/- 206

< 5.6 1570 +/- 217 1580 +/- 220 1610 +/- 218 1520 +/- 205 1320 +/- 187 1220 +/- 208 1150 +/- 165 1110 +/- 163 B-4

< 0.8

< 0.4 6.3 +/- 1.2 < 0.7 2.1 +/- 0.8 < 0.7 6.6 +/- 1.0 2.9 +/- 1.2 6.3 +/- 1.0 < 1.6

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma SITE MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-28 MW-PB-28 MW-PB-28 MW-PB-28 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-3 MW-PB-3 MW-PB-3 MW-PB-3 MW-PB-30 MW-PB-30 MW-PB-30 MW-PB-30 MW-PB-30 MW-PB-30 MW-PB-30 MW-PB-30 MW-PB-30 MW-PB-31 MW-PB-31 MW-PB-31 MW-PB-31 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 COLLECTION DATE 11/19/12 11/19/12 Recount 11/27/12 12/03/12 12/03/12 Recount 12/03/12 Reanalysi 12/10/12 12/17/12 12/26/12 02/06/12 05/08/12 08/01/12 11/06/12 02/06/12 05/08/12 05/08/12 05/08/12 EIML 07/31/12 11/06/12 11/27/12 12/03/12 12/10/12 12/17/12 12/26/12 02/07/12 05/08/12 08/01/12 11/06/12 02/06/12 05/08/12 07/31/12 11/06/12 11/27/12 12/03/12 12/10/12 12/17/12 12/26/12 02/07/12 05/08/12 07/31/12 11/06/12 01/03/12 01/09/12 01/16/12 01/23/12 01/30/12 02/06/12 02/06/12 02/06/12 EIML 02/13/12 02/20/12 02/27/12 H-3 SR-89 SR-90 GR-A (DIS)

GR-A (SUS)

GR-B (DIS)

GR-B (SUS) 879 +/- 164 592 +/- 141 948 +/- 157 2800 +/- 329 2880 +/- 336 s

2640 +/- 314 4160 +/- 470 8530 +/- 895 9640 +/- 1000

< 193

< 180

< 174

< 168 309 +/- 137 598 +/- 140 642 +/- 141 470 +/- 96 171 +/- 113 174 +/- 107 181 +/- 113

< 184

< 181 267 +/- 123 599 +/- 135

< 195

< 169

< 179

< 171 423 +/- 142

< 181 1300 +/- 192 955 +/- 147 429 +/- 128 540 +/- 145 557 +/- 145 702 +/- 138 166 +/- 110 320 +/- 140 239 +/- 124 431 +/- 127 166 +/- 107 2080 +/- 262 2440 +/- 297 2370 +/- 292 2480 +/- 299 1960 +/- 247 1810 +/- 234 1840 +/- 236 2032 +/- 155 2080 +/- 257 1700 +/- 230 1750 +/- 240

< 4.4

< 0.4

< 0.5

< 0.7

< 0.7

< 0.8

< 3.3

< 4.7

< 0.4

< 0.4

< 0.4

< 0.5 2.6 +/- 0.7 < 1.6 2.3 +/- 0.7 < 1.6 2.5 +/- 0.7 < 1.8 4.3 +/- 1.0 < 1.5 2.6 +/- 0.9 < 1.6 3.0 +/- 1

< 1.6

< 4.4

< 0.4

< 5.3

< 0.4

< 0 2.2 +/- 0.8 < 0.7

.7

< 0.8

.7

< 0.7

< 5.6

< 0.5

<0 B-5

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma SITE COLLECTION DATE H-3 SR-89 SR-90 GR-A (DIS)

GR-A (SUS)

GR-B (DIS)

GR-B (SUS)

MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-4 MW-PB-5 MW-PB-6 MW-PB-7 MW-PB-7 MW-PB-7 MW-PB-7 MW-PB-8 MW-PB-8 MW-PB-8 MW-PB-8 SP-PB-1 SP-PB-1 SP-PB-1 SP-PB-1 SP-PB-2 SP-PB-2 SP-PB-2 SP-PB-2 SP-PB-3 SP-PB-3 SP-PB-3 SP-PB-3 U/2 YARD DRAIN U/2 YARD DRAIN U/2 YARD DRAIN U/2 YARD DRAIN U/3 YARD DRAIN U/3 YARD DRAIN U/3 YARD DRAIN U/3 YARD DRAIN 03/05/12 03/12/12 03/19/12 03/26/12 04/23/12 05/01/12 05/07/12 05/07/12 05/14/12 06/11/12 07/09/12 08/01/12 08/20/12 09/17/12 11/06/12 11/19/12 11/27/12 12/03/12 12/10/12 12/17/12 12/26/1.2 05/09/12 05/09/12 02/07/12 05/09/12 08/01/12 11/07/12 02/08/12 05/09/12 08/01/12 11/07/12 02/07/12 05/08/12 08/01/12 11/07/12 02107/12 05/08/12 08/01/12 11/06/12 02/08/12 05/09/12 07/30/12 11/07/12 03/06/12 05/07/12 08/02/12 11/02/12 03/06/12 05/07/12 08/02/12 11/02/12 1780 +/- 241 1730 +/- 234 1930 +/- 245 1620 +/- 221 1530 +/- 205 1540 +/- 208 1490 +/- 208 1580 +/- 210 1570 +/- 216 1340 +/- 201 1590 +/- 219 1650 +/- 217 1520 +/- 206 1470 +/- 219 1200 +/- 171 1190 +/- 177 919 +/- 154 1040 +/- 167 859 +/- 160 1060 +/- 163 1230 +/- 176

< 167

< 168

< 194

< 166

< 176

< 170

< 194

< 166

< 193

< 168

< 192

< 180

< 172

< 196

< 188

< 178

< 174

< 170

< 190

< 175

< 174

< 197

< 182

< 177

< 162

< 196

< 184

< 174

< 193

< 197

< 5.1

< 0.5 2.1 +/- 1.3 < 0.7 8.8 +/- 1.4 1.9 +/- 1.1 9.2 +/- 1.6 < 1.6

< 4.1

< 0.4

< 3.1

< 4.2

< 0.5

< 1.1

< 0.8 2.3 +/- 0.9 19.0 +/- 1.6 2.3 +/- 1.1

< 0.4

< 1.1

< 0.7 2.0 +/- 0.9 < 1.6 2.1 +/- 0.8 < 1.8

< 0.5

<0.6

< 0.8 B-6

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER AND SEEP WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 DATE Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 DATE MW-PB-1 MW-PB-2 MW-PB-3 MW-PB-4 MW-PB-4 MW-PB-5 MW-PB-6 MW-PB-7 MW-PB-8 MW-PB-8 MW-PB-8 MW-PB-8 MW-PB-10 MW-PB-11 MW-PB-12 MW-PB-12 MW-PB-12 MW-PB-13 MW-PB-14 MW-PB-15 MW-PB-15 MW-PB-15 MW-PB-1 5 MW-PB-1 5 MW-PB-15 MW-PB-15 MW-PB-16 MW-PB-16 MW-PB-16 MW-PB-16 MW-PB-19 MW-PB-20 MW-PB-21 MW-PB-22 MW-PB-24 MW-PB-24 05/09/12

< 8 05/08/12

< 8 05/08/12

< 7 05/07/12

< 7 11/06/12

< 4 05/09/12

< 5 05/09/12

< 6 05/09/12

< 5 02/08/12

< 5 05/09/12

< 8 08/01/12

< 4 11/07/12

< 4 05/09/12

< 5 05/08/12

< 5 05/07/12

< 5 05/07/12

< 4 05/07/12 EIML < 4 05/08/12

< 5 05/09/12

< 5 02/07/12

< 5 02/07/12

< 5 02/07/12 EIML < 2 05/09/12

< 6 08/01/12

< 4 11/07/12

< 5 11/07/12

< 4 02/08/12

< 5 05/09/12

< 6 08/01/12

< 4 11/07/12

< 4 05/08/12

< 7 05/07/12

< 7 05/07/12

< 5 05/07/12

< 6 05/07/12

< 6 07/31/12

< 3

<8

<7

<7

<8

<4

<6

<5

<6

<4

<8

<4

<4

<5

<4

<6

<5

<3

<7

<5

<5

<5

<3

<4

<4

<5

<4

<5

<7

<4

<4

<6

<6

<5

<6

<6

<4

< 14

< 15

< 15

< 16

<7

< 11

< 12

< 11

<9

< 17

<8

<8

<9

< 10

< 13

<9

<8

< 14

< 12

<9

< 11

<7

< 11

<9

<9

<8

< 10

< 13

<9

<8

< 12

< 14

< 12

< 11

< 13

<8

<9

<7

<7

<6

<3

<5

<6

<6

<5

<8

<4

<5

<5

<4

<5

<5

<2

<7

<6

<5

<5

<2

<5

<4

<4

<4

<5

<7

<4

<5

<9

<8

<6

<5

<7

<4

< 15

< 13

< 13

< 16

<6

< 12

< 11

< 12

<9

< 16

<7

<9

< 10

<8

< 11

< 10

<5

< 11

< 11

<9

< 11

<5

< 14

<7

<8

<8

<8

< 13

<8

<8

< 13

< 15

<8

< 12

< 14

<7

<8

<7

<5

< 10

<4

<6

<6

<6

<7

<9

<5

<5

<6

<4

<7

<6

<4

<7

<6

<6

<6

<4

<8

<6

<6

<5

<5

<9

<4

<5

<8

<8

<6

<7

<9

<4

< 15

< 13

< 14

< 15

<6

<9

<11

<11

< 10

< 15

<7

<8

<8

<7

< 10

<7

<5

< 10

< 11

<7

<9

<4

< 10

<7

<9

<6

<9

< 12

<7

<7

< 14

< 14

< 11

< 12

< 13

<6

<11

<11

< 10

< 14

<6

<9

<8

< 11

<9

< 11

<9

<8

<8

<6

< 10

< 10

< 11

< 11

< 11

< 11

< 11

<4

< 10

<9

<8

<6

<9

< 10

<8

<7

< 13

< 12

< 11

< 11

< 14

<8

<9

<6

<6

<7

<4

<5

<4

<7

<4

<8

<4

<4

<5

<3

<6

<5

<3

<6

<6

<4

<5

<2

<6

<4

<4

<4

<5

<6

<3

<4

<6

<5

<5

<7

<7

<3

<9

<6

<7

<8

<4

<6

<6

<7

<5

<8

<4

<5

<6

<5

<6

<5

<3

<6

<6

<5

<5

<3

<7

<4

<5

<4

<5

<7

<4

<5

<8

<7

<6

<6

<6

<4

< 33

< 30

< 27

< 41

< 19

< 27

< 21

< 31

< 24

< 32

< 23

< 20

< 24

< 17

< 28

< 22

< 20

< 29

< 29

< 27

< 28

< 10

< 26

< 23

< 22

< 23

< 25

< 31

< 22

< 22

< 40

< 35

< 26

< 29

< 36

< 20

< 14

<9

<7

< 12

<5

<8

<6

< 10

<9

< 11

<8

<5

<5

<6

< 10

<6

<3

< 10

<8

<8

<7

<3

< 12

<7

<7

<6

<9

< 12

<8

<6

< 11

< 11

< 10

<4

<9

<5

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER AND SEEP WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER 12 SIGMA SITE COLLECTION Mn-54 DATE Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 MW-PB-24 MW-PB-24 MW-PB-25 MW-PB-25 MW-PB-26 MW-PB-26 MW-PB-27 MW-PB-27 MW-PB-27 MW-PB-28 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-30 MW-PB-31 SP-PB-1 SP-PB-2 SP-PB-3 U/2 YARD DRAIN U/3 YARD DRAIN 07/31/12

<3

<4

<8

<4

<7

<4

<6

<8

<3

<4

<20

<5 11/05/12

<5

<5

<9

<4

< 10

<6

<8

<8

<4

<5

<24

<9 05/07/12

< 5

< 6

< 13

< 6

< 13

< 7

< 11

< 12

< 5

< 5

< 28

< 10 11/05/12

<3

<3

<7

<4

<7

<4

<6

<6

<3

<3

< 16

<7

,0 05/07/12 11/05/12 05/07/12 11/05/12 11/05/12 05/08/12 05/08/12 05/08/12 05/08/12 05/08/12 05/08/12 05/08/12 05/08/12 05/09/12 05/07/12 05/07/12

<6

<3

<9

<9

<11

<3

<6

<6

<4

<6

<8

<4 EIML <2

<6

<8

<6

<8

<7

<5

<6

<3

<7

<6

<5

<6

<7

<4

<3

<7

<6

<6

<7

<9

<5

<5

<6

• 16

< 13

<8

• 18

< 20

• 10

<7

<11

< 14

• 13

<16

< 11

< 10

<13

<4

<8

<6

<5

<7

<6

<6

<1

<8

<8

<9

< 10

<8

<5

<6

<6

< 18

< 12

< 10

< 15

<9

< 10

<5

<13

< 16

< 14

< 13

• 15

< 11

< 10

<4

<7

<8

<5

<9

<9

<5

<3

<8

< 10

<9

<9

< 10

<5

<6

<6

< 12

<8

<8

< 11

< 17

<8

<4

< 14

< 11

< 13

< 14

< 13

<8

< 11

<5

<11

<15

<7

<6

<38

<10

<6

<3

<3

<15

<4

<15

<5

<8

<39

<11

<12

<6

<6

<30

<10

<10

<4

<4

<27

<7

<13

<6

<9

<41

<13

<14

<7

<9

<35

<13

<8

<4

<5

<24

<9

<6

<3

<3

<16

<4

<11

<7

<7

<33

<6

<11

<6

<7

<36

<13

<14

<6

<8

<35

<11

<15

<7

<12

<36

<11

<11

<7

<7

<29

<10

<9

<4

<6

<25

<10

<11

<5

<6

<28

<12

TABLE B-1.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma Am-241 Cm-242 Cm-243/244 Pu-238 SITE MW-PB-iO0 MW-PB-11 MW-PB-12 MW-PB-12 MW-PB-12 MW-PB-13 MW-PB-13 MW-PB-15 MW-PB-16 MW-PB-19 MW-PB-2 MW-PB-20 MW-PB-21 MW-PB-22 MW-PB-24 MW-PB-25 MW-PB-26 MW-PB-27 MW-PB-28 MW-PB-29 MW-PB-29 MW-PB-29 MW-PB-3 MW-PB-3 MW-PB-30 MW-PB-4 MW-PB-7 MW-PB-8 MW-PB-31 U/2 YARD DRAIN U/3 YARD DRAIN COLLECTION DATE 05/09/12 05/08/12 05/07/12 05/07/12 05/07/12 EIML 05/08/12 05/08/12 Reanalysis 05/09/12 05/09/12 05/08/12 05/08/12 05/07/12 05/07/12 05/07/12 05/07/12 05/07/12 05/07/12 05/07/12 05/08/12 05/08/12 05/08/12 05/08/12 EIML 05/08/12 05/08/12 Reanalysis 05/08/12 05/07/12 05/09/12 05/09/12 05/08/12 05/07/12 05/07/12 Pu-239/240 U-234 U-235 U-238 Fe-55 Ni-63 0.12 0.11 0.07 0.02 0.08 0.11 0.09 0.09 0.10 0.12 0.08 0.07 0.14 0.08 0.06 0.08 0.07

< 0.06

< 0.03

< 0.03

< 0.07

< 0.06

< 0.06

< 0.04

< 0.10

< 0.07

< 0.03

< 0.03

< 0.03

< 0.05

< 0.07

< 0.02

< 0.04

< 0.05

< 0.08

< 0.08

< 0.06

< 0.07

< 0.11

< 0.07

< 0.18

< 0.19

< 0.18

< 0.11

< 0.14

< 0.10

< 0.16

< 0.10

< 0.06

< 0.04

< 0.06

< 0.10

< 0.18

< 0.12

< 0.03

< 0.10

< 0.09

< 0.06

< 0.05

< 0.13

< 0.05

< 0.08

< 0.02

< 0.07

< 0.17

< 0.08

< 0.05

< 0.05

< 0.07

< 0.10

< 0.19

< 0.10

< 0.14

< 0.02

< 0.10

< 0.02

< 0.13

< 0.04

< 0.07

< 0.07

< 0.13

< 0.16

< 0.08

< 0.06

< 0.15

< 0.14

< 0.15

< 0.15

< 0.13

< 0.09 13.70 13.25

< 0.10

< 0.13 0.48 4.23

< 0.14

< 0.10

< 0.14

< 0.12 1.69 11.89 6.51 0.36

< 0.08

< 0.07

< 0.11 4.34 3.75

< 0.11

< 0.12

< 0.10

< 0.19

< 0.08

< 0.08 0.21

< 0.11

< 0.07

< 0.10

< 0.06

< 0.07

+/- 2.32 0.59 +/-

+/- 1.24 0.41 +/-

< 0.05

< 0.06

+/- 0.20 < 0.03

+/- 0.60 < 0.05

< 0.04

< 0.03

< 0.03

< 0.10

< 0.09

< 0.10

< 0.11

< 0.11

< 0.07 0.22 10.75 +/- 1.85 0.17 10.52 +/- 1.04

< 0.09

< 0.09 0.36 +/- 0.17 2.90 +/- 0.48

< 0.02

< 0.03

< 0.08

< 0.02

< 0.10 0.06 0.06 0.05 0.10

< 0.03

< 0.06

< 0.06

< 0.06

< 0.05

< 0.03

< 0.08

< 0.07

< 0.14

< 0.08

< 0.11

< 0.07

< 0.06

< 0.04

< 0.05

< 0.15

< 0.06

< 0.10

< 0.13

<0.11

< 0.08

< 0.08

< 0.10

< 0.16

< 0.08

< 0.09

< 0.07

< 0.02

< 0.12

< 0.06

< 0.09

< 0.16

< 0.19

< 0.03

< 0.14

< 0.08

< 0.09

< 0.09

< 0.04

< 0.10

< 0.05

< 0.05

< 0.11

< 0.10

< 0.03

+/- 0.35 <

+/- 1.41 <

+/- 1.27 <

+/- 0.17 <

+/- 0.58

+/- 0.55 <

0.05 0.10 0.03 0.05 0.04 0.03 0.06 0.17 + 0.11 0.05 0.03 0.04 0.03 0.05

< 0.14

< 0.10

< 0.16

< 0.09 0.87 +/- 0.24 5.98 +/- 0.86 1.95 +/- 0.50 0.25 +/- 0.14

< 0.08

< 0.07

< 0.06 2.62 +/- 0.43 2.48 +/- 0.43

< 0.09

< 0.12

< 0.10

< 0.14

< 0.06

< 0.06

< 0.04

< 68.1

< 130.6

< 33.7

< 95.6

< 3.7

• 3.6

• 3.6

• 3.6

< 98.1

< 3.7

< 0.03

< 0.03

< 0.02

< 0.03

< 0.07

< 0.04

< 0.04

< 0.08

+ 0.12 < 0.03

TABLE B-1I.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter +/- 2 Sigma SITE COLLECTION DATE SW-PB-1 02106/12 SW-PB-1 05/08/12 SW-PB-1 07/30/12 SW-PB-1 11/07/12 SW-PB-5 02/06/12 SW-PB-5 05/09/12 SW-PB-5 05/09/12 SW-PB-5 05/09/12 El SW-PB-5 07/30/12 SW-PB-5 11/07/12 SW-PB-6 02/06/12 SW-PB-6 05/09/12 SW-PB-6 05/09/12 Sw-PB-6 05/09/12 El SW-PB-6 07/30/12 SW-PB-6 11/07/12 H-3

< 188

< 178

< 176

< 198

< 189

< 178

< 175 VIL < 148

< 174

< 199

< 189

< 175

< 175 VIL < 148

< 175

< 197 B-1O

TABLE B-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 DATE Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 SW-PB-1 SW-PB-5 SW-PB-5 SW-PB-5 SW-PB-6 SW-PB-6 SW-PB-6 05/08/12

< 3 05/09/12

< 5 05/09/12

< 5 05/09/12 EIML < 3 05/09/12

< 5 05/09/12

< 4 05/09/12 EIML < 2

<3

<8

<4

<7

<4

<7

<7

<4

<5

<10

<5

<8

<5

<11

<9

< 5

<6

<11

<5

<11

<6

<9

<9

< 5

<3

<5

<2

<4

<4

<6

<10

< 2

<4

<11

<5

<9

<6

<10

<9

< 5

<4

<11

<5

<9

<5

<9

<8

<4

< 2

<6

<3

<4

<3

<7

<8

<3

<4

<5

<6

<3

<6

<5

<3

<17

< 21

< 25

< 12

< 25

< 23

< 20

< 8

<9

< 11

<4

<6

<6

<4

TABLE B-Ill.1 CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2012 Results in Units of pCi/liter + 2 Sigma SITE COLLECTION H-3 DATE 1A 02/02/12

< 174 1A 03/01/12

< 192 1A 03/29/12

< 171 1A 05/03/12

< 164 1A 05/31/12

< 188 1A 06/28/12

< 182 1A 08/02/12

< 178 1A 08/30/12

< 164 1A 09/27/12

< 173 1A 11/01/12

< 169 1B 02/02/12

< 173 1B 03/01/12

< 187 1B 03/29/12

< 183 1B 05/03/12

< 165 1B 05/31/12

< 188 1B 06/28/12

< 184 1B 08/02/12

< 177 1B 08/30/12

< 161 1B 09/27/12

< 169 1B 11/01/12

< 176 is 02/02/12

< 172 iS 03/01/12

< 184 1s 03/29/12

< 163 1s 05/03/12

< 163 iS 05/31/12

< 188 iS 06/28/12

< 190 1s 08/02/12

< 174 1s 08/30/12

< 166 1s 09/27/12

< 170 1s 11/01/12

< 176 1Z 02/02/12

< 174 1Z 03/01/12

< 188 1Z 03/29/12

< 180 1Z 05/03/12

< 162 1Z 05/31/12

< 187 1Z 06/28/12

< 183 1Z 08/02/12

< 176 1Z 08/30/12

< 167 1Z 09/27/12

< 171 1Z 11/01/12

< 176 4M 02/02/12

< 177 4M 03/01/12

< 186 4M 03/29/12

< 179 4M 05/03/12

< 165 4M 05/31/12

< 187 4M 06/28/12

< 184 4M 08/02/12

< 179 4M 08/30/12

< 159 4M 09/27/12

< 169 4M 11/01/12

< 177 B-12