ML15154A513

Annual Radiological Environmental Operating Report 72, January 1, 2014 Through December 31, 2014

ML15154A513
Person / Time
Site:	Peach Bottom
Issue date:	05/29/2015
From:	Pat Navin Exelon Generation Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML15154A513 (136)

Text

Exelon Generation, May 29, 2015 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 72 January 1, 2014 through December 31, 2014 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 Report 72. This report provides the 2014 results for the Radiological Environmental Monitoring Program (REMP) as called for in the Offsite Dose Calculation Manual.

In assessing the data collected for the REMP, we have concluded that the operation of PBAPS, Units 2 and 3, had no adverse impact on the environment.

There are no 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/FMLIGRSIJCCIEASIbcb Enclosure ccn 15-53 cc: William Dean, Administrator, Region I, USNRC (william.dean@nrc.gov)

S. Hansell, USNRC Senior Resident Inspector, PBAPS Chris Graves, Region I, USNRC, 2100 Renaissance Blvd, King of Prussia, PA 19406 ell,

May 29, 2015 U.S. Nuclear Regulatory Commission Annual Radiological Environmental Operating Report 72 January 1, 2014 through December 31, 2014 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 D. Henry, PBAPS, SMB3-2A R. Reiner, PBAPS, PB-TC J. Armstrong, PBAPS, SMB4 J. Barstow, Licensing Director, Kennett Square D. P. Helker, Kennett Square B. Hedrick, 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. 72 1 January Through 31 December 2014 Prepared By

~ Exelon Generation Peach Bottom Atomic Power Station Delta, PA 17314 May 2015

TABLE OF CONTENTS I. Executive Sum m ary ................................................................................................... 1 I1. Introduction ............................................................................................................. 3 A. Objectives .............................................................................................................. 3 B. Im plem entation ........................................................................................................ 3 Ill. Program Description ................................................................................................ 4 A. Sam ple Collection ..................................................................................................... 4 B. Sam ple Analysis ........................................................................................................ 6 C. Data Interpretation .................................................................................................. 7 D. Program Exceptions ................................................................................................. 8 E. Program Changes ................................................................................................... 11 IV, Results and Discussion ......................................................................................... 12 A. Aquatic Environm ent .............................................................................................. 12

1. Surface W ater ............................................................................................... 12

2. Drinking W ater .............................................................................................. 12

3. Precipitation ................................................................................................... 13 4 . F is h .................................................................................................................... 13

5. Sedim ent ........................................................................................................ 13 B. Atm ospheric Environm ent ....................................................................................... 14

1. Airbom e ....................................................................................................... 14

a. Air Particulates ..................................................................................... 14

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

2. Terrestrial ..................................................................................................... 15

a. Milk ....................................................................................................... 15

b. Food Products ..................................................................................... 16 C. Am bient Gam m a Radiation ..................................................................................... 16 D. Independent Spent Fuel Storage Installation ........................................................ 17 E. Land Use Census ................................................................................................... 17 F. Errata Data ............................. .......... ................... 18 G . Secondary Laboratory Analysis .............................................................................. 18 H. Summary of Results - Inter-laboratory Comparison Program ................................ 18 V. References ................................................................................................................... 22

Appendices Appendix A Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for the Peach Bottom Atomic Power Station, 2014 Appendix B Sample Designation and Locations Tables Table B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2014 Table B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2014 Figqures Figure B-1 Environmental Sampling Locations within One Mile of the Peach Bottom Atomic Power Station, 2014 Figure B-2 Environmental Sampling Locations between One and Approximately Five Miles of the Peach Bottom Atomic Power Station, 2014 Figure B-3 Environmental Sampling Locations Greater than Five Miles from the Peach Bottom Atomic Power Station, 2014 Appendix C Data Tables and Figures - Primary Laboratory Tables Table C-1.1 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-1.2 Concentrations of 1-131 in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-1.3 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-11.1 Concentrations of Gross Beta in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 ii

Table C-11.2 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-11.3 Concentrations of 1-131 in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-11.4 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-111.1 Concentrations of Gamma Emitters in Predator & Bottom Feeder (Fish)

Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-IV.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-V.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 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, 2014 Table C-V.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-VI.1 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-VII.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-VII.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-VIII.1 Concentrations of Gamma Emitters in Food Product Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table C-IX.1 Quarterly OSLD Results for Peach Bottom Atomic Power Station, 2014 Table C-IX.2 Mean Quarterly OSLD Results for the Site Boundary, Intermediate and Control Locations for Peach Bottom Atomic Power Station, 2014 Table C-IX.3 Summary of the Ambient Dosimetry Program for Peach Bottom Atomic Power Station, 2014 Figures Figure C-1 Monthly Total Gross Beta Concentrations in Drinking Water Samples Collected in the Vicinity of PBAPS, 2014 iii

Figure C-2 Mean Annual Cs-1 37 Concentrations in Fish Samples Collected in the Vicinity of PBAPS, 1971-2014 Figure C-3 Mean Semi-Annual Cs-1 37 Concentrations in Sediment Samples Collected in the Vicinity of PBAPS, 1971-2014 Figure C-4 Mean Weekly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of PBAPS, 2014 Figure C-5 Mean Monthly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of PBAPS, 1970-2014 Figure C-6 Mean Annual Cs-137 Concentrations in Milk Samples Collected in the Vicinity of PBAPS, 1971-2014 Figure C-7 Mean Quarterly Ambient Gamma Radiation Levels in the Vicinity of PBAPS, 1973-2014 Figure C-8 Quarterly Ambient Gamma Radiation Levels near the Independent Spent Fuel Storage Installation Located at PBAPS, 1998-2014 Appendix D Data Tables and Figures - QC Laboratory Tables Table D-1. 1 Concentrations of Gross Beta Insoluble in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table D-I.2 Concentrations of Gross Beta Soluble in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table D-1.3 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table D-1.4 Concentrations of 1-131 in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table D-1.5 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table D-11.1 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, 2014 Table D-11.2 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Table D-1ll.1 Concentrations of 1-131 by Chemical Separation and Gamma Emitters in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 iv

Table D-IV.1 Summary of Collection Dates for Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2014 Figures Figure D-1 Comparison of Monthly Total Gross Beta Concentrations in Drinking Water Samples Split Between the Primary and QC Laboratories, 2014 Figure D-2 Comparison of Weekly Gross Beta Concentrations from Collocated Air Particulate Locations Split Between the Primary and QC Laboratories, 2014 Appendix E Quality Control - Inter-Laboratory Comparison Program Tables Table E-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2014 Table E-2 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2014 Table E-3 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2014 Table E-4 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2014 Table E-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2014 Appendix F Errata Data Appendix G Annual Radiological Groundwater Protection Program Report (ARGPPR)

V

Intentionally Left Blank

1. Executive Summary In 2014, the dose from both liquid and gaseous effluents was conservatively calculated for the Maximum Exposed Member of the Public for Peach Bottom Atomic Power Station. 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 2.53E-01 All 1.10E+03 SSE 1.27E+00 2.OOE+01 mrad Dose Noble Gas Beta-Air 1.74E-01 All 1.10E+03 SSE 4.35E-01 4.OOE+01 mrad Dose Noble Gas Total Body 2.45E-01 All 1.1OE+03 SSE 2.45E+00 1.00E+01 mrem (gamma)

Noble Gas Skin (Beta) 3.20E-01 All 1.10E+03 SSE 1.07E-01 3.OOE+01 mrem Gaseous Iodine, Particulate, Bone 5.49E-01 Child 1.1OE+03 SSE 1.83E+00 3.00E+01 mrem Carbon-14 &

Tritium Gaseous Iodine, Particulate, Thyroid 1.68E-02 Infant 1.10E+03 SSE 8.60E-03 3.OOE+01 mrem

&Tritium Liquid Total Body 1.68E-02 Child 2.80E-01 6.00E+00 mrem (gamma) Site Boundary Liquid Liver 8.32E-03 Child 4.16E-02 2.OOE+01 mrem Direct Radiation Total Body 0.OOE+00 All 1.15E+03 SSE 0.OOE+00 2.20E+01 mrem 40 CFR Part 190 Compliance Total Dose Total Body 2.62E-01 All 1.15E+03 SSE 1.05E+00 2.50E+01 mrem Total Dose Thyroid 2.58E-03 All 1.15E+03 SSE 3.45E-03 7.50E+01 mrem Total Dose Bone 5.50E-01 All 1.15E+03 SSE 2.20E+00 2.50E+01 mrem Total Dose Total Body 2.62E-01 All 1.15E+03 SSE 8.74E+00 3.OOE+00 mrem Total Dose Bone 5.49E-01 All 1.15E+03 SSE 1.83E+01 3.00E+00 mrem Total Dose Thyroid 2.56E-01 All 1.15E+03 SSE 4.65E-01 5.50E+01 mrem Doses calculated were well below all ODCM limits.

This report on the Radiological Environmental Monitoring Program (REMP) conducted for the Peach Bottom Atomic Power Station (PBAPS) by Exelon Nuclear covers the period 1 January 2014 through 31 December 2014. During that time period 1,181 analyses were performed on 936 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, iodine-131 (1-131), tritium (H-3) 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 Radiological Groundwater Protection Program (RGPP) in 2014.

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 (Cs-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 1-131 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 1-131 and gamma emitting nuclides. Food product samples were analyzed for concentrations of gamma emitting nuclides. No PBAPS activation or fission products were detected.

Ambient gamma radiation levels were measured quarterly throughout the year.

Most 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 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 115 MWth High Temperature, Gas-cooled Reactor (HTGR) 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 rated full-power output of approximately 3,514 MWth. 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 (2X3) 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.

The 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 2014 through 31 December 2014.

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.

III. 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 2014. 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 (1LL 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 1LL and 61. Fish samples comprising the flesh from two groups: Bottom Feeder (channel catfish, flathead catfish, carp, and shorthead redhorse) and Predator (smallmouth bass, largemouth bass, and bluegill) 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, IC, 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, 2Q 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 The ambient gamma radiation in the areas surrounding PBAPS for the REMP is measured using dosimeters, which are exposed in the field during and exchanged quarterly. Optically-Stimulated Luminescent Dosimeters (OSLD) replaced the Thermo-Luminescent Dosimeter (TLD) type in the field starting in 2012. However, to observe how OSLD compares to TLD technology for environmental monitoring, PBAPS decided to continue using TLD in addition to OSLD. Therefore, both technologies are employed at PBAPS but the primary data reported is using the OSLD only. Additionally, only the "gross" exposure (i.e. no background or control subtraction) is reported in this report with OSLD; prior to 2012, TLD data are "net" exposures are used.

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

A site boundary ring, consisting of 20 locations (1A, 1B, lC, 1D, 1E, 1F, 1G, 1H, 11, UJ, 1K, 1L, 1M, 1NN, 1P, 1Q, 1R, 2, 2B and 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 24 locations (1T, 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 dosimeter 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.

Each dosimetry location in the environment has either 2 or 4 OSLD and TLD dosimeters which are enclosed in plastic as a moisture barrier.

These dosimeters are protected from the environment in either a small formica box or a polyethylene jar approximately six feet above the ground level. These dosimeters are exchanged quarterly and sent to an off-site 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 2014. 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" (a priori)estimate of a system (including instrumentation, procedure and sample type) and not as an "after-the-fact" (a posteriori) measurement 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 the "after-the-fact" (a posteriori)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. 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 11 nuclides, manganese-54 (Mn-54), cobalt-58 (Co-58), iron-59 (Fe-59), cobalt-60 (Co-60), zinc-65 (Zn-65), zirconium-95 (Zr-95), niobium-95 (Nb-95), cesium-1 34 (Cs-1 34), Cs-1 37, barium-1 40 (Ba-1 40) and lanthanum-1 40 (La-1 40) were reported.

For fish eight nuclides, potassium-40 (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, beryllium-7 (Be-7), Mn-54, Co-58, Co-60, Cs-1 34 and Cs-137 were reported.

For milk five nuclides, K-40, Cs-1 34, Cs-1 37, Ba-1 40 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 2014 the PBAPS REMP had a sample collection recovery rate of better than 99%. The exceptions to this program are listed below:

1. In 2Q2014 and 3Q2014, radiography was conducted in the vicinity of a REMP dosimeter (Williams LP Natural Gas Pumping Station which is near Station 50). Because this radiography is not a result of Peach Bottom operations, the radiation exposure to this dosimeter is not attributed to plant operations.

2. In May of 2014, four samples were unavailable for collection as required:

a.) Drinking water (Station 13B) was not collected due to Chester Water Authority in a maintenance period, and b.) Vegetation at Stations 2B, 1Q and 55 were not collected due to the late planting season which, therefore, does not provide sufficient material for sample collection. No other samples indicated radioactivity above background.

3. In June of 2014, a power failure, due to a tree limb falling on power lines, caused the air sampling pump Station 3A in Delta, PA to fail to draw a sample volume sufficient to meet the minimum specification of 85 cubic meters for the weekly sample. (A lower sample size means that the required LLDs may not be met and therefore the sample would be considered invalid.) Samples taken before and after indicate no detectable radioactivity and no elevated release occurred during that time period.

4. In June of 2014, the semi-annual sediment sample results at Location 4J (Conowingo Pond, West Shore off Burkins Run) showed positive Cs-137 activity at a level of 2.41E02 pCi/kg. The (minimum detectable concentration) MDC was found to be 1.12E02 pCi/kg (required LLD is 1.80E2 pCi/ kg). The lack of other shorter-lived power-production nuclides in these samples suggests that the contamination is old and therefore due to atmospheric nuclear weapons testing and not attributable to Peach Bottom Atomic Power Station. The detected activity in the sediment is thought to be due to increased storm water runoff which is releasing the Cs-137 from the surrounding soils into the river.

5. In June of 2014, a power failure (blown fuses) caused the Station 1C (South Substation) to stop sampling on 25 JUN 2014.

Contractor suspects that the blown fuses were due to thunderstorm activity that evening.

6. The Environmental sampling contractor reported to the REMP Task Manager at Peach Bottom that an incorrect flow rate conversion factor was used for 5 indicator air samplers and, as a result, the calculated volume of air for each sample was incorrect. When the orifices were calibrated in June, the new calibration value was not used in the subsequent calculations. A review of those data since June shows that volume of each sample was under-reported by approximately 10% for each weekly sample affected. Under-reporting of the volume is conservative because it will not affect the LLD requirements from being met per ODCMS Table 4.8.E.2.

Samples were collected and are valid per ODCMS 3.8.E.2.

7. In June of 2014, the member of the public which has historically provided vegetation samples has elected not to grow a garden this year at location 2B. Therefore, sampling at this location is suspended indefinitely. This sampling is judged to be unavailable due to farmer opting not to plant. Vegetation/Food Products sampling is required ONLY if milk sampling is NOT performed.

Station 1Q is still available for regular sampling but it is not located in the highest D/Q location. Dosimetry at this location (Station 2B) will continue and is not affected.

8. In June of 2014, Vegetation/Garden/Food Products Station 1Q was low in sample collection inventory (animal consumption) therefore ragweed was substituted to make up the sample mass (satisfactory sample mass specification is 300 g to 1000 g). Edible green leafy vegetation is the preferred sample material, if available.

9. In June of 2014, a hail storm caused the Station 42 (Muddy Run) container to be damaged and the dosimeters were intact and found on the ground. These dosimeters were re-installed in a new container and replaced. The data from these dosimeters is included and was not expected to deviate significantly from previous results.

10. In July of 2014, a power failure (PECO service area outage) caused the Station 5H2 (Manor Substation) to stop sampling on 07 JUL 2014. This sampler was not in service for the entire third quarter of 2014. Review of Three Mile Island's control and indicator locations showed consistency between before and after the loss of 5H2 station and, therefore, this is reasonable assurance that no measurable release to the environment occurred during this period.

11. In July of 2014, Vegetation/Garden/Food Products Station 1Q was low in sample collection inventory therefore tobacco was substituted to make up the sample mass (satisfactory sample mass specification is 300 g to 1000 g). Edible green leafy vegetation is the preferred method.

12. During the quarterly change-out of dosimeters, the REMP contractor noted that the Station 51 was found damaged. The sample bottle appeared to have been hit by flying snow from a snowplow from storms during the winter. There are two dosimeters of each type, OSLD and TLD, at this location. The contractor was able to locate one dosimeter of each type and therefore, these were used as valid samples in the program. No further action was required and all measured radiation was consistent with previous background levels.

13. In September of 2014, the Station 1C (South Substation) air sample pump was running but not drawing air on 17 SEP 2014.

Investigation showed that the ceramic vanes on the pump had shattered (normal wear leads to eventual degradation). Vanes were replaced and pump operation was verified satisfactory.

However, sample volume was low out of specification and cannot be used for analysis, therefore sample data for the 1C location was available for the week of 14 SEP 2014 - 20 SEP 2014.

Comparison with other sample data indicates that no measureable release to the environment occurred during this period.

14. In November of 2014, semi-annual sediment sample results at Locations 4J, 4T and 6F (4J = Conowingo Pond, West Shore off Burkins Run; 4T = Conowingo Pond -- Near Conowingo Dam 12,875 m (8 mi) SE of PBAPS; 6F = Lake Aldred -- Holtwood Dam-East Shore upstream (PBAPS Control Location) 9334 m (5.8 mi)

NW of PBAPS) showed positive Cs-137 activity. Spectfic-Activity was measured for each location 4J at 1.07E02 pCi/ kg, 4T at 2.37E02 pCi/ kg and 6F at 1.41 E02 pCi/ kg. The lack of other shorter-lived power-production nuclides in these samples suggests that the contamination is old and therefore due to atmospheric nuclear weapons testing and not attributable to Peach Bottom Atomic Power Station. The detected activity in the sediment is thought to be due to increased storm water runoff which is releasing the Cs-1 37 from the surrounding soils into the river.

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

1. Vegetation location 2Q was added to the REMP in July of 2014.

2. Dosimeter location 1T was added to the REMP program in the fourth quarter of 2014.

IV. Results and Discussion A. Aquatic Environment

1. Surface Water Samples were taken from a continuous sampler at two locations (1LL and 1MM) 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-1.2, 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. Drinking 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-11.1 and Figures C-1 Appendix C).

Gross beta was detected in 25 of 36 samples. The values ranged from 2.0 to 5.6 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-I1.3, 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 2014.

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-111.1, Appendix C).

Naturally occurring K-40 was found at all stations and ranged from 2,470 to 4,000 pCi/kg wet and was consistent with levels detected in previous years. No Peach Bottom fission or activation products were found in 2014. A gradual increase in the MDC has been observed over the last few years. This change in the baseline is likely the result of historical heat exchanger leaks or nuclear weapons testing 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.l, Appendix C). Potassium-40 was found in all locations and ranged from 11,730 to 26,710 pCi/kg dry.

The fission product Cs-1 37 was detected in four of six samples.

The concentration ranged from 107 to 241 pCi/kg dry. The activity of Cs-1 37 detected was consistent with those detected in the preoperational years. Historical levels of Cs-137 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, 1C 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-4 and C-5, 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 8 to 38 E-3 pCi/m 3, with a mean of 17 E-3 pCi/m 3 . The results from the Intermediate Distance location (Group II) ranged from 9 to 37 E-3 pCi/m 3 with a mean of 16 E-3 pCi/m 3 . The results from the Distant location (Group Ill) ranged from 8 to 39 E-3 pCi/m 3 with a mean of 16 E-3 pCi/m 3 . A comparison of the weekly mean values for 2014 indicate no notable differences among the three groups (Figure C-4, Appendix C). In addition, a comparison of the 2014 air particulate data with previous years data indicate no effects from the operation of PBAPS (Figure C-5, 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 46 to 93 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, 1C, 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 Spectrometry 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 1,058 to 1,521 pCi/I. All other nuclides were less than the MDC and all required LLDs were met. Comparison of the 2014 Cs-1 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 (1Q, 2Q and 55) when available. Of these locations, 1Q and 55 could be affected by Peach Bottom's effluent releases. The following analysis was performed:

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

Naturally occurring Be-7 activity was found in 21 of 32 samples and ranged from 188 to 2,806 pCi/kg wet.

Potassium-40 activity was found in all samples and ranged from 1,529 to 12,170 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 REMP. OSLDs were deployed. TLD monitoring is continuing at PBAPS as a side-by-side technology comparison study but official reporting is from OSLD data. 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 C-IX.3 and Figure C-7, Appendix C.

Most gross OSLD measurements were below 10 mR per standard month, with a range of 6.6 to 16.0 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).

In 2014, PBAPS replaced the Unit 3 reactor vessel's Steam Dryer in support of the Extended Power Uprate (EPU) project. The Old Steam Dryer (OSD) was removed and is being stored at the Low-Level Radioactive Waste Storage Facility (LLRWSF) at PBAPS until shipment can be conducted. Although this storage location is shielded to minimize exposure off-site and on-site, additional monitoring for environmental exposure due to this additional component in storage is considered prudent. Therefore, a new ambient gamma radiation monitoring location (1T) was added to the REMP to ensure continued compliance with 40 CFR 190 and provide more data for the validation of dose models and projections.

D. Independent Spent Fuel Storage Installation (ISFSI)

ISFSI was utilized beginning June 2000. During 2014, a total of 4 TN-68 casks, each loaded with 68 fuel bundles, were added to the ISFSI pad.

Onsite location 1R, 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. Location 2B, which represents the location of the Nearest Real Resident, shows a slight increase in exposure from the ISFSI pad. Data from location 2B is used to demonstrate compliance to both 40CFR190 and 10CFR72.104 limits.

The large increase in multiple direct radiation locations after 2012 is a result of the transition in technology used for ambient gamma radiation measurement (from TLD to OSLD) and the use of "gross" data rather than "net".

All radiation levels are well-below regulatory limits.

E. Land Use Census A Land Use Survey conducted during the fall of 2014 around the 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.

Meteorological Sector and Distance from the Center of PBAPS Reactor Building Exhaust Vents Sector Residence Garden Milk Farm Feet Feet Feet 1 N 12,365 14,003 14,455 2 NNE 11,112 11,041 10,843 3 NE 10,080 10,004 10,492 4 ENE 10,495 12,417 10,925 5 E 10,066 14,540 14,471 6 ESE 16,085 20,374 20,154 7 SE 19,368 19,368 19,134 8 SSE 3,912 3,912 9 S 5,545 5,545 10 SSW 6,072 8,167 11,602 11 SW 4,755 4,865 4,860 12 WSW 4,036 9,072 13 W 5,327 5,327 5,136 14 WNW 2,928 4,192 22,124 15 NW 2,948 9,545 9,545 16 NNW 5,124 F. Errata Data There is no errata data for 2014.

G. Secondary Laboratory Analysis The Appendix D section of this report presents the results of data analysis performed by the QC laboratory, Environmental Inc. Duplicate samples were obtained from several locations and media and split between the primary laboratory, Teledyne Brown Engineering (TBE) and the QC laboratory. Comparisons of the results for all media were within expected ranges.

H. 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.

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

Soil - gamma - will be provided by Analytics twice per year, starting in 2015. For 2014, one soil gamma is provided by MAPEP, the 2nd soil gamma is provided by Analytics.

AP - gamma - is currently provided by Analytics.

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

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

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

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

NCR 14-04

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

3. Teledyne Brown Engineering's ERA November 2014 1-131 in water result of 15.8 pCi/L was lower than the known value of 20.3 pCi/L, failing below the lower acceptance limit of 16.8. The result was evaluated as failed with a found to known ratio of 0.778. No cause could be found for the slightly low result. All ERA 1-131 evaluations since 2004 have been acceptable. NCR 14-08

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

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

6. Teledyne Brown Engineering's MAPEP September 2014 Gr-Alpha in AP result of 0.153 Bq/sample was lower than the known value of 0.53 Bq/sample. The AP sample was counted on the wrong side.

The AP was flipped over and recounted with acceptable results.

NCR 14-09 For the EIML laboratory, 85 of 90 analyses met the specified acceptance criteria. Five analyses (Water - Pu-238, Pu-239, Fe-55; AP - Co-57; Soil

- Csi 34) did not meet the specified acceptance criteria for the following reasons:

1. Environmental Inc., Midwest Laboratory's MAPEP February 2014 water Pu-238 result of 1.28 Bq/L was higher than the known value of 0.83 Bq/L, exceeding the upper control limit of 1.08 Bq/L. The high bias on the plutonium was traced to contamination from a newly purchased standard. The result of the reanalysis with the new tracer was 0.68 Bq/L, which fell within the acceptance criteria.

2. Environmental Inc., Midwest Laboratory's MAPEP February 2014 water Pu-239/240 result of 0.91 Bq/L was higher than the known value of 0.68 Bq/L, exceeding the upper control limit of 0.88 Bq/L.

The high bias on the plutonium was traced to contamination from a newly purchased standard. The result of reanalysis with the new tracer was 0.66 Bq/L, which fell within the acceptance criteria.

3. Environmental Inc., Midwest Laboratory's MAPEP February 2014 AP Co-57 result of 1.60 +/- 0.05 Bq/total sample failed the false positive test. Interference from the Eu-1 52 resulted in the misidentification of Co-57.

4. Environmental Inc., Midwest Laboratory's MAPEP February 2014 soil Cs-1 34 result of 6.10 +/- 1.80 Bq/kg failed the false positive test.

Long sample counting time lead to interference from naturally occurring Bi-214 in the sample matrix with a close spectral energy.

Environmental Inc., Midwest Laboratory's MAPEP August 2014 water Fe-55 result of 55.10 +/- 14.80 Bq/L was higher than the known value of 31.50 Bq/L, exceeding the upper control limit of 41.00 Bq/L. The result of the reanalysis of Fe-55 was 32.63 +/- 16.30 Bq/L, which fell within the acceptance criteria.

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-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER H-3 200 <LLD <LLD (PCI/LITER) 1-131 24 <LLD <LLD GAMMA 24 MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD 0 FE-59 30 <LLD <LLD 0 CO-60 15 <LLD <LLD ZN-65 30 <LLD <LLD 0 15 <LLD <LLD 0 ZR-95 30 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SURFACE WATER CS-134 15 <LLD <LLD 0 (PCI/LITER)

CS-137 18 <LLD <LLD 0 BA-140 60 <LLD <LLD 0 LA-140 15 <LLD <LLD 0 DRINKING WATER GR-B 36 4 3.1 2.8 3.3 13B INDICATOR 0 (PCI/LTER) (18/24) (7/12) (8/12) CHESTER WATER AUTHORITY SUSQUEHANNA PUMPIN(

(2/5.6) (2.5/3.8) (2.5/5.6) 13306 FEET ESE H-3 12 200 <LLD <LLD 1-131 36 <LLD <LLD 0 GAMMA 36 MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS DRINKING WATER FE-59 30 <LLD <LLD 0 (PCI/LITER)

CO-60 15 <LLD <LI 0 ZN-65 30 <LLD <LI 0 NB-95 15 <LLD <LI-D ZR-95 30 <LLD <LILD CS-134 15 <LLD <LILD 0 CS-137 18 <LLD <LILD 0 BA-140 60 <LLD <LI 0 LA-140 15 <LLD <LI THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS BOTTOM FEEDER GAMMA 4 (PCI/KG WET) K-40 NA 3362 3499 3499 6 CONTROL 0 (2/2) (2/2) (2/2) HOLTWOOD POND (3293/3430) (2997/4000) (2997/4000) 57347 FEET NW MN-54 130 <LLD <LLD 0 CO-58 130 <LLD <LLD FE-59 260 <LLD <LLD 0 CO-60 130 <LLD <LLD 0 ZN-65 260 <LLD <LLD 0 CS- 134 130 <LLD <LLD 0 CS-137 150 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION 4 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 GAMMA 4 (PCI/KG WET) K-40 NA 2989 3490 3490 6 CONTROL 0 (2/2) (2/2) (2/2) HOLTWOOD POND (2470/3508) (3393/3587) (3393/3587) 57347 FEET NW MN-54 130 <LLD <LLD 0 CO-58 130 <LLD <LLD 0 FE-59 260 <LLD <LLD 0 CO-60 130 <LLD <LLD 0 ZN-65 260 <LLD <LLD 0 CS-134 130 <LLD <LLD 0 CS-137 150 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS SEDIMENT GAMMA (PCI/KG DRY) K-40 NA 20233 14740 24720 4T INDICATOR (4/4) (2/2) (2/2) CONOWINGO POND NEAR CONOWINGO DAM (13460/26710) (11730/17750) (22730/26710) 41818 FEET SE MN-54 NA <LLD <LLD 0 CO-58 NA <LLD <LLD 0 CO-60 NA <LLD <LLD 0 CS- 134 150 <LLD <LLD 0 CS-137 180 195 141 237 4T INDICATOR I (3/4) (1/2) (1/2) CONOWINGO POND NEAR CONOWINGO DAM (107/241) 41818 FEET SE AIR PARTICULATE GR-B 246 10 17 16 17 IC INDICATOR 0

(.E-3 PCI/CU.METER) (204/206) (39/40) (50/51) PEACH BOTTOM SOUTH SUB STATION (8/38) (8/39) (10/38) 4513 FEET SSE GAMMA 20 BE-7 NA 65 64 67 3A INDICATOR 0 (16/16) (3/4) (4/4) DELTA PA SUBSTATION (46/93) (59/68) (54/75) 19114 FEET SW THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-i RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS AIR PARTICULATE MN-54 NA <LLD <LLD 0 (E-3 PCI/CU.METER)

CO-58 NA <LLD <LLD 0 CO-60 NA <LLD <LLD 0 CS-134 50 <LLD <LLD 0 CS-137 60 <LLD <LLD 0 AIR IODINE GAMMA 246 (E-3 PCI/CU.METER) 1-131 70 <LLD <LLD MILK 1-131 129 <LLD <LLD (PCI/LITER)

GAMMA 129 K-40 NA 1270 1260 1377 D INDICATOR 0 (100/100) (29/29) (4/4)

(1058/1521) (1114/1390) (1328/1399) 18533 FEET NE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (M) MEAN (M) MEAN (M) STATION # NUMBER OF PATHWAY SAMPLED ANALYSIS ANALYSIS LOWER LIMIT (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS MILK CS-134 15 <LLD <LLD 0 (PCI/LITER)

CS-137 18 <LLD <LLD 0 BA-140 60 <LLD <LLD 0 LA-140 15 <LLD <LLD 0 VEGETATION GAMMA 32 (PCI/KG WET) BE-7 NA 746 718 918 IQ INDICATOR 0 (15/20) (6/12) (7/11)

(208/2806) (188/1509) (264/2806) 3274 FEET SE K-40 NA 4750 5688 5785 1Q INDICATOR (20/20) (12/12) (Il/1l)

(1529/12170) (3317/8807) (2161/12170) 3274 FEET SE MN-54 NA <LLD <LLD CO-58 NA <LLD <LLD CO-60 NA <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2014 NAME OF FACILITY: PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER: 50-277 & 50-278 2014 LOCATION OF FACILITY: YORK COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

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

CS-134 60 <LLD <LLD 0 CS-137 80 <LLD <LLD 0 DIRECT RADIATION OSLD-QUARTERLY 189 NA 9.8 9.5 16.0 IT INDICATOR 0 (MILLIREM/STD.MO.) (173/173) (16/16) (I/) LAY ROAD (6.6/16.0) (7.6/10.9) 3065 FEET NW THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES FRACTION OF DETECTABLE MEASUREMENTS AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESES (F)

APPENDIX B SAMPLE DESIGNATION AND LOCATIONS

TABLE B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2014 Location Location Description Distance & Direction from Site A. Surface Water ILL Peach Bottom Units 2 and 3 Intake - Composite 1,256 feet NE (Control) 1MM Peach Bottom Canal Discharge -Composite 5,470 feet SE B. Drinking (Potable) Water 45,721 feet SE 4L Conowingo Dam EL 33' MSL - Composite 61 Holtwood Dam Hydroelectric Station - Composite 30,337 feet NW (Control) 13B Chester Water Authority (CWA) Susquehanna 13,306 feet ESE Pumping Station- Composite C. Precipitation 1A 1,396 feet SE 1B 2,587 feet NW 4M 45,989 feet SE D. Fish 4 Conowingo Pond 7,162 feet SE 6 Holtwood Pond (Control) 57,347 feet NW E. Sediment 4J Conowingo Pond near Berkin's Run 7,346 feet SE 4T Conowingo Pond near Conowingo Dam 41,818 feet SE 6F Holtwood Dam (Control) 31,469 feet NW F. Air Particulate - Air Iodine 1B Weather Station #2 2,587 feet NW 1z Weather Station #1 1,396 feet SE 1A Weather Station #1 1,396 feet SE lC Peach Bottom South Sub Station 4,513 feet SSE 3A Delta, PA - Substation 19,144 feet SW 5H2 Manor Substation (Control) 162,565 feet NE G Milk - bi-weeklv / monthly J 5,119 feet W R 4,694 feet WSW S 19,061 feet SE U 14,468 feet SSW V (Control) 32,736 feet W H. Milk - quarterly C (Control) 5,037 feet NW D 18,533 feet NE B-1

TABLE B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2014 Location Location Description Distance & Direction from Site H. Milk - quarterly (cont'd)

E (Control) 46,147 feet N L 11,194 feet NE P 10,982 feet ENE W 89,232 feet S I. Food Products - monthly when available IQ 4,171 feet NW 2B 3,854 feet SSE 2Q 9,245 feet SW 55 (Control) 52,272 feet NE J. Environmental Dosimetry - OSLD Site Boundary 1L Peach Bottom Unit 3 Intake 1,256 feet NE 1P Tower B & C Fence 2,112 feet ESE 1A Weather Station #1 1,396 feet SE IQ Tower D & E Fence 3,274 feet SE 1D 140 o Sector 3,538 feet SE 2 Peach Bottom 1300 Sector Hill 4,661 feet SE 2B Burk Property 3,768 feet SSE 1M Discharge 5,438 feet SE 1R Transmission Line Hill/ISFSI Pad 2,798 feet SSE 11 Peach Bottom South Substation 2,851 feet SSE 1C Peach Bottom South Substation 4,513 feet SSE 1J Peach Bottom 1800 Sector Hill 3,755 feet S 1K Peach Bottom Site Area 4,604 feet SW 1F Peach Bottom 2000 Sector Hill 2,707 feet SSW 40 Peach Bottom Site Area 7,750 feet SW 1NN Peach Bottom Site 2,547 feet WSW 1H Peach Bottom 2700 Sector Hill 3,104 feet W 1G Peach Bottom North Substation 3,173 feet WNW 1B Weather Station #2 2,587 feet NW 1E Peach Bottom 3500 Sector Hill 3,136 feet NNW Intermediate Distance 5 Wakefield, PA 24,482 feet E 15 Silver Spring Rd 19,449 feet N 22 Eagle Road 13,230 feet NNE 44 Goshen Mill Rd 27,480 feet NE 32 Slate Hill Rd 15,213 feet ENE 45 PB-Keeney Line 18,524 feet ENE 14 Peters Creek 10,397 feet E 17 Riverview Rd 21,966 feet ESE 31A Eckman Rd 24,105 feet SE 4K Conowingo Dam Power House Roof 45,721 feet SE 23 Peach Bottom 1500 Sector Hill 5,276 feet SSE 27 N. Cooper Road 13,859 feet S 48 Macton Substation 25,772 feet SSW B-2

TABLE B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2014 Location Location Description Distance & Direction from Site J. Environmental Dosimetry - OSLD (cont'd)

Intermediate Distance (cont'd) 3A Delta, PA Substation 19,114 feet SW 49 PB-Conastone Line 20,673 feet WSW 50 TRANSCO Pumping Station 25,677 feet W 51 Fin Substation 20,511 feet WNW 26 Slab Road 22,093 feet NW 6B Holtwood Dam Power House Roof 30,538 feet NW 42 Muddy Run Environ. Laboratory 21,954 feet NNW 43 Drumore Township School 26,931 feet NNE 46 Broad Creek 23,483 feet SSE 47 Broad Creek Scout Camp 22,153 feet S IT Lay Road/LLRWSF 3,065 feet NW Control 16 Nottingham, PA Substation (Control) 67,788 feet E 24 Harrisville, MD Substation (Control) 58,048 feet ESE 18 Fawn Grove, PA (Control) 51,413 feet W 19 Red Lion, PA (Control) 106,354 feet WNW B-3

TABLE B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2014 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 inwater (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 invarious matrices water compositor. (Peach Bottom Atomic Power Station)

Env. Inc., W(DS)-O1 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 inwater 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-ERI5 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 (Peach Bottom Atomic Power Station)

TABLE B-2 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2014 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 invarious 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-ER1O 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.

Figure B-1 Environmental Sampling Locations Within One Mile of the Peach Bottom Atomic Power Station, 2014 B-6

Figure B-2 Environmental Sampling Locations Between One and Approximately Five Miles of the Peach Bottom Atomic Power Station, 2014 B-7

Figure B-3 Environmental Sampling Locations Greater Than Five Miles from the Peach Bottom Atomic Power Station, 2014 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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 1LL 1MM PERIOD 01/01/14 - 03/26/14 < 18b < 183 03/26/14 - 06/25/14 < 190 < 195 06/25/14 - 10/01/14 < 184 < 184 10/01/14 - 12/31/14 < 183 < 183 MEAN Table C-1.2 CONCENTRATIONS OF 1-131 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 1LL 1MM PERIOD 01/01/14 - 01/29/14 < 0.8 < 0.7 01/29/14 - 02/26/14 < 0.7 < 0.5 02/26/14 - 03/26/14 < 0.6 < 0.6 03/26/14 - 04/30/14 < 0.7 < 0.7 04/30/14 - 05/28/14 < 0.8 < 0.8 05/28/14 - 06/25/14 < 0.5 < 0.6 06/25/14 - 07/30/14 < 0.5 < 0.5 07/30/14 - 08/27/14 < 0.7 < 0.6 08/27/14 - 10/01/14 < 0.9 < 0.8 10/01/14 - 10/29/14 < 0.6 < 0.7 10/29/14 - 11/26/14 < 0.6 < 0.5 11/26/14 - 12/31/14 < 0.6 < 0.4 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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD 1LL 01/01/14 - 01/29/14 <4 <4 <11 <4 <8 <7 <10 <4 <5

• 32 < 10 01/29/14 - 02/26/14 <4 <5 < 10 <3 <7 <5 <9 <4 <4

• 29 <10 02/26/14 - 03/26/14 <4 <4 <8 <3 <7 <4 <7 <3 <3

• 25 <7 03/26/14 - 04/30/14 <2 <2 <5 <2 <4 <2 <4 <2 <2

• 17 <4 04/30/14 - 05/28/14 <3 <3 <9 <4 <7 <5 <7 <3 <3

• 23 <7 05/28/14 - 06/25/14 <6 <5 <9 <4 < 10 <5 <7 <4 <4 < 24 <7 06/25/14 - 07/30/14 <5 <3 <8 <3 <8 <4 <7 <3 <4

• 28 <7 07/30/14 - 08/27/14 <3 <4 <7 <4 <7 <4 <7 <3 <4 < 24 <7 08/27114 - 10/01/14 <4 <4 < 10 <4 <9 <5 <8 <4 <5 < 33 <9 10/01/14 - 10/29114 <4 <4 <9 <4 <8 <4 <8 <4 <4

• 32 <10 10/29/14 - 11/26/14 <5 <5 < 10 <4

• 13 <6 < 10 <6 <5

• 29 < 11 11126114 - 12/31114 <5 <5

• 10 <6

• 12 <6 <9 <4 <6 < 27 < 10 MEAN t'j 1MM 01/01/14 - 01/29/14 <6 <5 <12 <8 11 <5 <8 <4 <5 < 29 <11 01/29114 - 02/26/14 <4 <5 <12 <5 10 <5 <9 <3 <5 < 37 < 11 02/26/14 - 03/26/14 <5 <6

• 10 <6 10 <6 <9 <4 <6

• 32 <14 03/26/14 - 04/30/14 <2 <2 <4 <2 3 <2 <3 <2 < 2

• 12 <3 04/30/14 - 05/28/14 <4 <5 <9 <4 9 <5 <8 <4 <5

• 30 <10 05/28/14 - 06/25/14 <5 <4 <8 <5 8 <4 <9 <4 < 4

• 26 <8 06/25/14 - 07/30/14 <4 <4 <8 <4 7 <4 <7 <4 <4

• 29 <8 07/30/14 - 08/27/14 <4 <5

• 10 <4 9 <5 <9 <5 <4

• 28 <10 08/27/14 - 10/01/14 <3 <4 <10 <4 8 <5 <8 <4 <4

• 32

• 12 10/01/14 - 10/29/14 <4 <4 < 10 <4 9 <4 <8 <4 <4

• 29 <11 10/29/14 - 11/26/14 <6 <6 *15 <7 11 <6 <13 <5 <7 < 33 <12 11/26/14 - 12/31/14 <8 <8 <18 <9 17 <8 <14 <7 <8

• 36 <11 MEAN

Table C-II.1 CONCENTRATIONS OF GROSS BETA IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 13B 4L 61 PERIOD 01/02/14 - 01/30/14 3.4 +/- 1.3 2.8 + 1.4 2.6 +/- 1.1 01/30/14 - 02/27/14 < 2.7 2.9 + 1.9 < 2.7 02/27/14 - 03/27/14 < 2.3 < 2.3 < 2.3 03/27/14 - 05/01/14 < 1.9 < 1.9 < 2.0 05/01/14 - 05/29/14 (1) 3.0 +/- 1.4 2.0 + 1.3 < 2.9 05/29/14 - 06/26/14 2.8 +/- 1.4 2.2 + 1.4 2.5 +/- 1.4 06/26/14 - 07/31/14 2.9 +/- 1.6 2.7 +/- 1.6 < 2.2 07/31/14 - 08/28/14 2.5 +/- 1.6 4.0 +/- 1.7 2.8 +/- 1.6 08/28/14 - 10/02/14 3.6 +/- 1.5 4.0 + 1.6 2.7 +/- 1.5 10/02/14 - 10/30/14 < 2.3 3.6 + 1.7 2.5 +/- 1.6 10/30/14 - 11/26/14 5.6 +/- 1.7 3.1 + 1.5 3.8 +/- 1.5 11/26/14 - 01/02/15 2.6 +/- 1.4 2.2+/- 1.3 3.0 +/- 1.4 MEAN 3.3 +/- 2.0 2.9 +/- 1.5 2.8 +/- 0.9 Table C-11.2 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 13B 4L 61 PERIOD 01/02/14 - 03/27/14 < 157 < 160 < 181 03/27/14 - 06/26/14 < 194 (1) < 192 < 197 06/26/14 - 10/02/14 < 187 < 188 < 186 10/02/14 - 01/02/15 < 158 < 182 < 185 MEAN Table C-11.3 CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 13B 4L 61 PERIOD A

01/02/14 - 01/30/14 < 0.9 < 0.8 < 0.7 01/30114 - 02/27/14 < 0.7 < 0.5 < 0.9 02/27/14 - 03/27/14 < 0.5 < 0.7 < 0.7 03/27/14 - 05/01/14 < 0.7 < 0,6 < 0.9 05/01/14 - 05/29/14 < 0.8 (1) < 0.8 < 0.8 05/29/14 - 06/26/14 < 0.5 < 0.5 < 0.5 06/26/14 - 07/31/14 < 0.6 < 0.6 < 0.6 07/31/14 - 08/28/14 < 0.8 < 0.5 < 0.6 08/28/14 - 10/02/14 < 0.7 < 0.8 < 0.8 10/02/14 - 10/30/14 < 0.6 < 0.5 < 0.6 10/30/14 - 11/26/14 < 0.7 < 0.5 < 0.5 11/26/14 - 01/02/15 < 0.5 < 0.5 < 0.5 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-3

Table C-II.4 CONCENTRATIONS OF GAMMA EMITTER IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD

<p < <p <, <

13B 12/30/13 - 01/27/14 <4 01/27/14 - 02/24/14 <3 <9 <4 <7 <4 <9 <4 <4 < 30 <9

<4 02124/14 - 03/24/14 <4 <10 <3 <9 <5 <6 <3 <3 < 33 <8

<4 03/24/14 - 04/28/14 <2 <3 <1 <3 <2 <3 <1 <2

• 12 <4

<1 04/28/14 - 05/19/14 <2 <4 <2 <3 <2 <3 <1 <2 <18 <:5 05/19/14 - 06/23/14 (1) <4 <4 <8 <3 <8 <4 <7 <4 <4 <18 <8 06/23/14 - 07/28/14 <3 <4 <8 <3 <7 <4 <6 <3 <3

• 29 <8 07/28/14 - 08/25/14 <3 <3 <7 <3 <4 <3 <5 <3 <3

• 26 <7 08/25/14 - 09/30/14 <4 <4 <8 <4 <8 <4 <7 <3 <3

• 28 <9 09/30/14 - 10/27/14 <3 <3 <7 <3 <6 <3 <6 <3 <3 < 24 <9 10/27/14 - 11/24/14 <4 <5 <8 <4 <8 <5 <9 <5 <5 < 28 <8 11/24/14 - 12/29/14 <6 <6 < 16 <7 <13 <6 <11 <7 <6

• 30 < 10 MEAN 4L 01/02/14 - 01130/14 <4 <4 <9 <4 <8 <4 <7 <4 <4

• 29 <10 01/30/14 - 02/27/14 <4 <5

• 10 <4 <9 <6 <9 <4 <5

• 32 <9 02/27/14 - 03/27/14 <5 <5 < 10 <4 <9 <6 <9 <5 <6 <34 <9 03/27/14 - 05/01/14 <2 <2 <5 <2 <4 <2 <4 <2 <2

• 15 <5 05/01/14 - 05/29/14 <4 <5 <10 <5 <10 <4 <7 <5 <5

• 30 <13 05/29/14 - 06/26/14 <5 <5 <8 <6 <7 <5 <10 <5 <5

• 25 <7 06/26/14 - 07/31/14 <4 <5 <9 <4 <9 <5 <8 <4 <4 < 29 <8 07/31/14 - 08/28/14 <4 <6 *12 <5 <10 <5 < 10 <5 <5

• 31 <13 08/28/14 - 10102/14 <5 <5 <10 <6 <11 <6 <9 <4 <5

• 29 <10 10/02/14 - 10/30/14 <4 <4 <9 <4 <8 <5 <8 <4 <5

• 29 <10 10/30/14 - 11/26/14 <6 <5 <11 <6 <10 <5 <9 <5 <6

• 30 <6 11/26/14 - 01/02/15 <6 <6 < 10 <5 <11 <7 <12 <6 <7

• 27 <7 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-II.4 CONCENTRATIONS OF GAMMA EMITTER IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/-12 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-1 34 Cs-137 Ba-140 La-140 PERIOD 61 01102114 - 01/30/14 <4 <4 <10 <4 <9 <5 <8 <4 <4 <26 <8 01/30/14 - 02/27/14 <4 <4 <8 <7 < 10 <5 < 10 <5 <6 < 37 < 11 02/27/14 - 03/27/14 <4 <4 <8 <4 <8 <4 <9 <4 <4 <26 <8 03/27/14 - 05/01/14 <2 <2 <4 <2 <4 <2 <3 <2 <2 <13 <4 05/01/14 - 05/29/14 <5 <5 <11 <6 < 10 <6 <9 <4 <5 < 33 < 13 05/29114 - 06/26/14 <6 <5 < 12 <6 < 14 <6 < 11 <7 <6 < 31 < 10 06/26/14 - 07/31/14 <4 <5 <12 <5 < 10 <6 <8 <5 <5 < 30 <9 07/31/14 - 08/28/14 <5 <5 < 15 <6 < 12 <7 < 10 <5 <6 < 33 < 11 08/28114 - 10/02/14 <4 <5 <9 <5 <9 <5 <8 <4 <5 < 28 < 11 10/02/14 - 10/30/14 <4 <5 <9 <4 <7 <5 <8 <3 <5 < 35 < 11 10130/14 - 11/26/14 <7 <8 < 15 <7 < 14 <7 < 11 <6 <8 <34 < 11 11/26/14 - 01/02/15 <5 <6 < 12 <5 < 14 <7 < 10 <5 <7 < 25 <8 MEAN LA

Table C-I11.1 CONCENTRATIONS OF GAMMA EMITTERS IN PREDATOR AND BOTTOM FEEDER (FISH)

SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 PERIOD 4 PREDATOR 06/20/14 3508 +/- 891 < 41 < 45 < 108 < 51 <71 < 35 < 40 09/26/14 2470 +/- 575 < 38 < 37

• 80 < 43 < 73

• 30

• 36 MEAN 2989 +/- 1468 -

4 BOTTOM FEEDER 06/16/14 3430 764 < 54

• 51

• 101 < 48

• 118 < 47 < 49 09126/14 3293 + 637 < 40

• 38 < 93 < 39

• 89 < 44 < 40 MEAN 3362 + 194 -

6 PREDATOR 06/12/14 3393 + 947 < 61 < 48 < 107 < 57

• 119

• 65 < 59 09/29/14 3587 + 1077 < 58

• 61

• 137

• 56 < 132

• 67 < 68 MEAN 3490 274 -

6 BOTTOM FEEDER 06/12/14 4000 +/- 1197 < 71

• 76

• 139

• 67 < 137 < 72 < 73 09/29/14 2997 +/- 913 < 37 <34

• 85

• 31 < 96 < 37 < 43 MEAN 3499 +/- 1418

Table C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PC/KG DRY +/- 2 SIGMA SITE COLLECTION K-40 Mn-54 Co-58 Co-60 Cs-1 34 Cs-137 PERIOD 4J 06/16/14 18030 +/- 1926 < 66 < 80 < 86 < 79 241 +/- 112 (1) 11/25/14 13460 +/- 1156 < 51 < 42 < 69 < 44 107 +/- 52 (1)

MEAN 15745 +/- 6463 - - - - 174 +/- 190 4T 06/16114 26710 +/- 2678 < 138 < 116 < 150 < 118 < 152 11/25/14 22730 +/- 3091 < 131 < 99 < 133 < 111 237 +/- 113 (1)

MEAN 24720 +/- 5629 - -

6F 06/16/14 11730 + 1503 < 66 < 78 < 49 < 67 < 72 11/25/14 17750 + 1525 < 67 < 55 < 91 < 59 141 +/- 68 (1)

MEAN 14740 +8514 - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-7

Table C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I I GROUP II I GROUP III PERIOD 1IL 12/30/13 - 01/06/14 20 +/-5 01/01/14 - 01/09/14 17 5 17 +/- 5 19 5 23 +/- 5 01/06/14 - 01/13/14 21 +/-5 01/09114 - 01/15/14 24 +7 19 +/- 6 17 6 17 +/- 6 01/13/14 - 01/20/14 7 01/15/14 - 01/23/14 21 t 5 24 +/- 5 21 +/-5 22 +/- 5 01/22/14 - 01/27/14 20 +/-7 01/23/14 - 01/30/14 17 +5 18 +/- 5 18 +/- 5 18 +/- 5 01/27/14 - 02/04/14 15+/- 5 01/30/14 - 02/06/14 20 +5 19+/- 5 23 +/- 6 23 +/- 6 02/04/14 - 02/10/14 39 +/- 10 02/06/14 - 02/12/14 35 1 7 38 +/-7 37 +/- 7 37 +/- 7 02/10/14 - 02/17/14 25 +/- 6 02/12/14 - 02/20/14 24 +/- 5 17 5 19 +/- 5 21 +/- 5 02/17/14 - 02/24/14 13 +/- 5 02/20/14 - 02/27/14 15 1 5 15+/- 5 17 +/- 5 17 +/- 5 02/24/14 - 03/02/14 29 +/-7 02/27/14 - 03/06/14 28 1 6 33 +/-6 30 +/- 6 33 +/- 6 03102/14 - 03/10/14 20 +/-5 03/06/14 - 03/13/14 27 +/-6 21 +/-5 23 +/- 5 24 +/- 5 03/10/14 - 03/16/14 21 +/-6 03/13/14 - 03/20/14 13 5 13 5 13 +/- 5 11+/- 5 03/16/14 - 03/24/14 12 4 03/20/14 - 03/27/14 15 5 18 +/- 6 16 +/- 5 20 +/-6 03/24/14 - 03/31/14 16 5 03/27/14 - 04/03/14 21 +/-5 17 +/- 5 15 +/- 5 16 5 03/31/14 - 04/07/14 15 5 04/03/14 - 04/09/14 14 6 10 +/- 5 14 +/- 6 15 6 04/07/14 - 04/14/14 9+/-5 04/09/14 - 04/17/14 15- 4 21 +/- 5 16 +/- 5 16 4 04/14/14 - 04/21/14 19+/- 5 04/17/14 - 04/24/14 17+/- 6 14 +/- 5 17 +/- 6 17 5 04/21/14 - 04/28/14 18 5 04/24/14 - 05/01/14 15 5 10 +/- 5 15 +/- 5 9+/-5 04/28/14 - 05/05/14 9+/-5 05/01/14 - 05/08/14 8+/-5 15 +/- 5 12 +/- 5 13 +/- 3 05/05/14 - 05/12/14 14+/- 5 05/08/14 - 05/15/14 17 5 16 +/- 5 13 +/- 5 15 +/- 5 05/12/14 - 05/19/14 10 +/- 5 05/15/14 - 05/22114 12 +/- 5 12 +/- 5 15 +/- 6 13 +/- 5 05/19/14 - 05/27/14 19 +/- 5 05/22/14 - 05/29/14 11 +/-5 15 +/- 5 9+/-5 9+/-5 05/27/14 - 06/02/14 13 +/- 5 05/29/14 - 06/05/14 11 5 14 +/- 5 13 5 9+/-5 06/02/14 - 06/09/14 14-+/- 5 06/05/14 - 06/12/14 9+/-5 10 +/- 5 7 9+/-5 06/09/14 - 06/16114 10 5 06/12/14 - 06/19/14 16+/- 5 12 +/- 5 16 5 (1) 06/16/14 - 06/23/14 14+/- 5 06/19/14 - 06/26/14 13 5 <6 (1) 18 5 15 5 06/23/14 - 06/30/14 11 +/-5 06/26/14 - 07/02/14 20 +6 16 +/- 5 16 5 14 5 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-8

Table C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I I= GROUP II I= GROUP III PERIOD lid 1/ briz U

06/30/14 - 07/07/14 23 +/-9 07/02/14 - 07/10/14 16+/- 4 17+/- 4 14 +/-4 15 +/- 4 07/07/14 - 07/14/14 (1) 07/10/14 - 07/17/14 14 +5 13 5 9+/-4 13 +/- 5 07114/14 - 07/21/14 (1) 07/17/14 - 07/23/14 12 5 17+/- 6 15+/- 5 11+/- 5 07/21/14 - 07/28114 (1) 07/23/14 - 07/31/14 9+/-3 14+/- 4 16+/- 4 13 +/-4 07/28/14 - 08/04/14 (1) 07/31/14 - 08/07/14 16 +/- 4 17 5 20 +/-5 13+/- 4 08/04/14 - 08/11/14 (1) 08/07/14 - 08/14/14 13 +/- 4 13 5 14+/- 5 12+/- 4 08/11/14 - 08/18/14 (1) 08/14/14 - 08/21/14 14 +/- 4 14+/- 5 20 +5 14-1 4 08/18/14 - 08/25/14 (1) 08/21/14 - 08/28/14 12 +/- 4 12+/- 5 16 5 11 +/-4 08/25/14 - 09/02/14 (1) 08/28/14 - 09/04/14 15 +/- 4 17+/- 5 15+/- 5 17+/- 4 09/02/14 - 09/08/14 (1) 09/04/14 - 09/11/14 13 +/- 4 16 5 15 +/- 4 13+/- 4 09/08/14 - 09/15/14 (1) 09/11/14 - 09/18/14 12 +/- 4 (1) 15 +/- 4 12 +/-4 09/15/14 - 09/22/14 (1) 09/18/14 - 09/25/14 17 +/- 4 19+/- 5 17 +/- 4 19+/- 4 09/22/14 - 09/30/14 (1) 09/25/14 - 10/02/14 25 +/- 5 29 +/-6 18 +/- 5 20 +/-i4 09/30/14 - 10/07/14 17 +/- 5 10/02/14 - 10/09/14 19 +/- 5 16+/- 5 17 +/- 5 20 +/- 4 10/07/14 - 10/13/14 17 +/- 6 10/09/14 - 10/16/14 16 +/- 4 18+/- 5 15 +/- 4 17 +/- 4 10/13/14 - 10/20/14 8+/-4 10/16/14 - 10/23/14 10 +/- 4 13+/- 4 10 +/- 4 13 +/- 4 10/20/14 - 10/27/14 11 +/-5 10/23/14 - 10/30/14 19 +/- 5 23 +/-5 18 +/- 5 16 +/- 4 10/27/14 - 11/03/14 17+/- 5 10/30/14 11/06/14 12 +/- 4 16 5 15+/- 5 12 +/- 4 11/03114 - 11/10/14 17+/- 5 11/06/14 - 11/13/14 18 +/- 4 19+/- 5 23 +5 17 +/- 4 11/10/14 - 11/18/14 13 4 11/13/14 - 11/20/14 12 +/- 4 18 +/- 5 14 5 12 +/- 4 11/18/14 - 11/24/14 18+/- 6 11/20/14 - 11/26/14 22 +/-6 27 +/- 6 26 +/-6 26 +/- 5 11/24/14 - 12/01/14 15 5 11/26/14 - 12/04/14 18 4 20 +/- 4 15 +/-4 15 +/- 4 12/01/14 - 12/08/14 15+/- 5 12/04/14 - 12/11/14 19+/- 5 17 +/- 5 16 +4 18 +/- 4 12/08/14 - 12/15/14 9+/-5 12/11/14 - 12/18/14 15 5 24 +/- 5 28 +/-5 20 +/- 5 12/15/14 - 12/22/14 17 5 12/18/14 - 12/26/14 12+/- 4 11 +/-4 8+/-4 9+/-3 12/22/14 - 12/29/14 12 +/- 5 12/26/14 - 01/02/15 18 +/- 5 19 5 17 5 16+/- 4 MEAN 16 +/-11 17 +/- 11 17 +/- 10 16 +/- 11 16 +/- 12 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION 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, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP I - ON-SITE LOCATIONS GROUP II - INTERMEDIATE DISTANCE LOCATIONS GROUP III - CONTROL LOCATIONS COLLECTION MIN MAX MEAN+/- COLLECTION MIN MAX MEAN+/- COLLECTION MIN MAX MEAN+/-

PERIOD 2SD PERIOD 2SD PERIOD 2SD

-1 01101/14 - 01/30/14 17 24 19 +/- 5 01/01/14 - 01/30/14 17 23 20 +/- 6 12/30/13 01/27/14 20 21 20 +/- 1 01/30114 - 02127/14 15 38 23 +/- 17 01/30/14 - 02/27/14 17 37 24 +/- 18 01/27/14 03/02/14 13 39 24 +/- 21 02/27/14 - 04/03/14 13 33 20 +/- 13 02127/14 - 04/03/14 11 33 21 +/- 16 03/02/14 03/31/14 12 21 17+/- 8 04/03/14 - 05/01/14 10 21 15 +/- 6 04/03/14 - 05/01/14 9 17 14 +/- 7 03/31/14 04/28/14 9 19 15 9 05/01/14 - 05/29/14 8 17 13 +/- 6 05/01/14 - 05/29/14 9 15 12 +/- 5 04/28/14 05/27/14 9 19 13 10 05/29/14 - 07/02/14 9 20 14 +/- 6 05/29/14 - 07/02/14 9 15 12 +/- 6 05/27/14 06/30/14 10 14 12+/- 4 07/02/14 - 07/31/14 9 17 14 +/- 5 07/02/14 - 07/31/14 11 15 13 +/- 4 06/30/14 07107/14 23 23 07/31/14 - 09/04/14 12 20 15 +/- 5 07/31/14 - 09/04/14 11 17 13 +/- 4 08/04/14 09/02/14 09/04/14 - 10/02/14 12 29 18 +/- 10 09/04/14 - 10/02/14 12 20 16 +/- 8 09/02/14 09130/14 10/02/14 - 10/30/14 10 23 16 +/- 8 10/02/14 - 10/30/14 13 20 16 +/- 6 09/30/14 11/03/14 8 17 14 8 10/30/14 - 12/04/14 12 27 18 +/- 9 10/30/14 - 12/04/14 12 26 16 +/- 11 11/03/14 12/01/14 13 18 16+/- 5 12/04/14 - 01/02/15 8 28 17 +/- 11 12/04/14 - 01/02/15 9 20 16 +/- 9 12/01/14 12/29/14 9 17 13 +/- 6 01/01/14 - 01/02/15 8 38 17 +/- 11 01/01/14 - 01/02/15 9 37 16 +/- 11 12/30/13 - 12/29/14 8 39 16 +/- 12 0

Table C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA SITE COLLECTION Be-7 Mn-54 Co-58 Co-60 Cs-1 34 Cs-1 37 PERIOD 1B 01/01/14 - 04/03/14 69 +/- 22 <3 <3 <3 <2 <2 04/03/14 - 07/02/14 83 +/- 34 <3 <4 <3 <3 <3 07102/14 - 10/02114 64 +/- 25 <3 <3 <5 <3 <3 10/02/14 - 01/02/15 46 +/- 3 < 0.3 < 0.3 < 0.3 < 0.3 < 0.2 MEAN 66 +/- 31 iC 01/01/14 - 04/03/14 93 +/- 27 <5 <6 <4 <4 <4 04/03/14 - 07/02/14 54 +/- 17 <2 <2 <2 <2 <2 07/02/14 - 10/02/14 58 +/- 17 <2 <1 <2 <2 <2 10/02/14 - 01/02/15 54 +/- 6 <1 <1 <1 <1 <1 MEAN 65 + 38 iZ 01/01/14 - 04/03/14 58 +/- 26 <3 <3 <3 <3 <3 04/03/14 - 07/02/14 66 +/- 18 <2 <2 <2 <2 <2 07/02/14 - 10/02/14 63 +/- 17 <2 <3 <2 <3 <2 10/02/14 - 01/02/15 57 +/- 21 <2 <4 <3 <3 <3 MEAN 61 +/- 9 3A 01/01/14 - 04/03/14 75 +/- 24 <4 <3 <3 <4 <3 04/03/14 - 07/02/14 70 +/- 27 <3 <4 <3 <3 <2 07/02/14 - 10/02/14 54 +/- 23 <2 <1 <2 <2 <2 10/02/14 - 01/02/15 69 +/- 30 <4 <4 <1 <3 <3 MEAN 67 +/- 18 5H2 12/30/13 - 03/31/14 68 +/- 24 <3 <4 <3 <3 <3 03/31/14 - 06/30/14 65 +/- 23 <3 <3 <3 <3 <3 06/30/14 - 07/07/14 < 203 <8 < 17 <7 <7 <7 09/30/14 - 12/29/14 59 +/- 25 <3 <3 <3 <2 <2 MEAN 64 +/- 10 -

C-Ii

Table C-VI.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I IGROUP II GROUP III PERIOD 1B iC 1Z 3A 5H2 12/30/13 - 01/06/14

• 26 01101/14 - 01/09/14 <62 < 62 61 < 61 01/06/14 - 01/13/14

• 18 01/09/14 - 01115/14

• 36

• 36 35 < 19 01/13/14 - 01/20/14

• 28 01/15/14 - 01/23114

• 50 < 50 50 < 54 01/22/14 - 01/27/14 < 47 01/23/14 - 01/30/14

• 52

• 52 51 < 52 01/27/14 - 02/04/14

• 10 01/30/14 - 02/06/14 < 37 < 37 36 < 43 02/04/14 - 02/10/14 < 33 02/06/14 - 02/12/14

• 23 < 54 54 < 56 02/10/14 - 02/17/14 < 28 02/12/14 - 02/20/14 < 47 < 47 46 < 48 02/17/14 - 02/24/14

• 18 02/20/14 - 02/27/14

• 38

• 21 39 < 38 02/24/14 - 03/02/14

• 22 02/27/14 - 03/06/14 < 69

• 70 69 < 70 03/02/14 - 03/10/14

• 22 03/06/14 - 03/13/14

• 68 < 67 67 < 26 03/10/14 - 03/16/14 < 24 03/13/14 - 03120/14

• 68

• 70 69 < 69 03/16/14 - 03/24/14

• 22 03/20114 - 03/27/14 < 53 < 53 22 < 53 03/24/14 - 03/31/14

• 29 03/27/14 - 04/03/14 < 60 < 60 60 < 60 03/31/14 - 04/07/14

• 28 04/03/14 - 04/09/14

• 29 < 68 68 < 68 04/07/14 - 04/14/14 < 24 04/09/14 - 04/17/14 < 64 < 64 64 < 64 04/14/14 - 04/21/14 < 19 04/17/14 - 04/24/14 < 68 < 28 67 < 67 04/21/14 - 04/28/14

• 24 04/24/14 - 05/01/14

• 67 < 67 67 < 67 04/28/14 - 05/05/14 < 33 05/01/14 - 05/08/14

• 30

• 30 29 < 12 05/05/14 - 05/12/14 < 35 05/08/14 - 05/15/14 < 46 < 46 46 < 46 05/12/14 - 05/19/14 < 35 05/15/14 - 05/22/14

• 62 < 61 24 < 62 05/19/14 - 05/27/14

• 22 05/22/14 - 05/29/14 < 54 < 54 53 < 55 05/27/14 - 06/02/14

• 38 05/29/14 - 06/05/14 < 32 < 59 59 < 59 06/02/14 - 06/09/14

• 18 06/05/14 - 06/12/14

• 50 < 49 49 < 49 06/09/14 - 06/16/14

• 16 06/12/14 - 06/19/14 < 63 < 26 62 (1) 06/16/14 - 06123/14 < 33 06/19/14 - 06/26/14 < 35 <34 (1) 34 < 41 06/23114 - 06/30/14 < 40 06/26/14 - 07/02/14 < 33 < 33 33 < 33 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-12

Table C-VI.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I JGROUPII GROUP III PERIOD 1WB 5H2 06/30/14- 07/07/14 < 65 07/02/14 - 07/10/14 < 53 < 53 52 < 52 07/07/14 - 07/14/14 (1) 07/10/14- 07/17/14 < 48 < 48 20 < 48 07/14/14 - 07/21/14 (1) 07/17/14 - 07/23/14 < 63 < 62 24 < 62 07/21/14 - 07/28/14 (1) 07/23/14 - 07/31/14 < 13 < 28 28 < 25 07/28/14 - 08/04/14 (1) 07/31/14 - 08/07/14 < 31 < 36 36 < 31 08/04/14 - 08/11/14 (1) 08/07/14 - 08/14/14 < 50 < 57 56 < 49 08/11/14 - 08/18/14 (1) 08/14/14 - 08/21/14 < 39 < 23 44 < 39 08/18/14 - 08/25/14 (1) 08/21/14 - 08/28/14 < 47 < 54 53 < 18 08/25/14 - 09/02/14 (1) 08/28/14 - 09/04/14 < 44 < 50 50 < 42 09/02/14 - 09/08/14 (1) 09/04/14 - 09/11/14 < 24 < 27 10 < 23 09/08/14 - 09/15/14 (1) 09/11/14 - 09/18/14 < 23 (1) 24 < 22 09/15/14 - 09/22/14 (1) 09/18114 - 09/25/14 < 15 < 53 41 < 38 09/22/14 - 09/30/14 (1) 09/25/14- 10/02/14 < 55 < 62 56 < 53 09/30/14 - 10/07/14 < 24 10/02/14 - 10/09/14 < 52 < 24 54 < 50 10/07/14 - 10/13/14 < 55 10/09/14 - 10/16/14 < 57 < 62 58 < 53 10/13/14 - 10/20/14 < 27 10/16/14 - 10/23/14 < 40 < 44 41 < 38 10/20/14 - 10/27/14 < 42 10/23/14 - 10/30/14 < 30 < 32 30 < 28 10/27/14 - 11/03/14 < 14 10/30/14 - 11/06/14 < 47 < 51 47 < 18 11/03/14 - 11/10/14 <8 11/06/14 - 11/13/14 < 45 < 47 45 < 41 11/10/14 - 11/18/14 < 11 11/13/14 - 11/20/14 < 49 < 50 19 < 44 11/18/14 - 11/24/14 < 28 11120/14 - 11/26/14 < 69 < 56 68 < 60 11/24/14 - 12/01/14 < 42 11/26/14 - 12/04/14 < 46 < 49 45 < 41 12/01/14 - 12/08/14 < 22 12104/14 - 12111/14 < 38 < 70 65 < 65 12/08/14 - 12/15/14 <8 12/11/14 - 12/18/14 < 58 < 59 69 < 62 12/15/14 - 12/22/14 < 15 12/18/14 - 12/26/14 < 62 < 63 61 < 54 12/22/14 - 12/29/14 < 33 12/26/14 - 01/02/15 < 32 < 13 31 < 28 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-13

Table C-VII.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA CONTROL FARM I INDICATOR FARM COLLECTION C E V D J L P R S U W PERIOD 01/06/14 < 0.6 < 0.6 < 0.7 < 0.6 < 0.6 02/04/14 < 0.7 < 0.7 < 0.6 < 0.8 < 0.9 < 0.7 < 0.7 < 0.8 < 0.7 < 0.8 < 0.7 03103/14 < 0.9 < 0.8 < 0.9 < 0.9 < 0.8 04/07/14 < 0.8 < 0.7 < 0.7 < 0.9 < 0.7 04/21/14 < 0.6 < 0.6 < 0.6 < 0.7 < 0.7 05/06/14 < 0.9 < 0.9 < 0.4 < 0.8 < 0.8 < 0.8 < 1.0 < 0.9 < 0.9 < 1.0 < 0.8 05/19/14 < 0.8 < 0.8 < 0.9 < 0.7 < 0.9 05/30/14 < 0.5 06/02/14 < 0.8 < 0.8 < 0.8 < 0.9 06116114 < 0.5 < 0.6 < 0.6 < 0.6 < 0.7 06/30/14 < 0.7 < 0.6 < 0.5 < 0.7 < 0.6 07/11/14 < 0.5 07114/14 < 0.5 < 0.5 < 0.5 < 0.4 07/28/14 < 0.6 < 0.6 < 0.6 < 0.7 < 0.6 08/12/14 < 0.6 < 0.6 < 0.6 < 0.5 < 0.4 < 0.5 < 0.6 < 0.5 < 0.5 < 0.4 < 0.6 08/25/14 < 0.7 < 0.9 < 0.4 < 1.0 < 0.8 09/08/14 < 0.6 < 0.7 < 0.8 < 0.8 < 0.6 09/18/14 < 0.6 09/22/14 < 0.6 < 0.6 < 0.6 < 0.7 10/06/14 < 0.7 < 0.6 < 0.6 < 0.7 < 0.8 10/20/14 < 0.7 < 0.4 < 0.6 < 0.8 < 0.5 11/04/14 < 0.5 < 0.5 < 0.6 < 0.4 < 0.4 < 0.4 < 0.4 < 0.4 < 0.5 < 0.4 < 0.5 11/17/14 < 0.9 < 0.3 < 0.6 < 0.6 < 0.4 12/08/14 < 0.8 < 0.8 < 0.6 < 0.8 < 0.8 MEAN

Table C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION K-40 Cs-134 Cs-137 Ba-140 La-140 PERIOD C 02/03/14 1294 +/- 183 <9 <9 < 45 <11 05/05/14 1330 +/- 148 <5 <6

• 31 <7 08/11/14 1211 +/- 102 <4 <5

• 29 <9 11103/14 1257 +/- 115 <4 <5

• 23 <5 MEAN 1273 +/- 102 E 02/03/14 1214 +/- 178 <7 <7 < 44 <15 05/05/14 1260 +/- 166 <6 <6 < 37 <9 08/11/14 1310 +/- 156 <6 <6

• 41 <9 11/03/14 1281 +/- 151 <5 <6 < 29 < 10 MEAN 1266 +/- 81 V 01/04/14 1209 +/- 135 <6 <5 < 39 <12 02/01/14 1156 +/- 118 <5 <6 < 32 <11 03/01/14 1185 +/- 120 <4 <4

• 30 <8 04/05/14 1291 +/- 120 <5 <6 < 33 <7 04/19/14 1265 +/- 120 <7 <8 < 43 <12 05/03/14 1165 +/- 161 <4 <7 < 38 <7 05/17/14 1277 +/- 137 <5 <6 < 35 <4 05/30/14 1374 +/- 112 <4 <5

• 31

• 10 06/14/14 1390 +/- 153 <8 <9

• 51 *12 06/30/14 1160 +/- 139 <5 <7

• 24 <5 07/11/14 1261 +/- 190 <7 <7 < 41 *14 07/26/14 1114 +/- 131 <6 <6

• 36

• 10 08/09/14 1270 +/- 111 <4 <5

• 25 <7 08/23/14 1372 +/- 90 <3 <4

• 26 <7 09/08/14 1389 +/- 158 <7 <7 < 35 *10 09/18/14 1239 +/- 138 <4 <6 < 36

• 12 10/06/14 1296 +/- 167 <7 <6 < 41 < 11 10/18/14 1207 +/- 49 <2 <2

• 21 <6 10/31/14 1298 +/- 179 <7 <8 < 43 < 12 11/15/14 1273 +/- 105 <4 <5 < 56 < 11 12108/14 1180 +/- 140 <5 <5 <19 <6 MEAN 1256 +/- 162 -

D 02/03/14 1393 +/- 184 <7 <8 < 45 < 11 05/06/14 1328 +/- 205 <5 <6 < 33 <9 08/12/14 1399 +/- 197 <7 <9 < 44 < 14 11/04/14 1386 +/- 137 <5 <6 < 23 <8 MEAN 1377 +/- 66 C-15

Table C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION K-40 Cs-134 Cs-137 Ba-140 La-140 PERIOD J 01/06/14 1093 +/- 143 <5 <6 < 39 < 12 02/03/14 1433 +/- 193 <8 <7 < 39 <8 03/03/14 1352 +/- 149 <7 <7 < 44 <9 04/07/14 1156 +/- 167 <7 <7 < 36 < 12 04/21/14 1335 +/- 142 <6 <6 < 33 <9 05/05/14 1212 +/- 182 <7 <8 < 47 < 12 05/19/14 1287 +/- 129 <7 <7 < 46 < 11 06/02/14 1167 +/- 130 <6 <7 < 39 <8 06/16/14 1223 +/- 160 <6 <7 < 33 <8 06/30/14 1145 +/- 157 <6 <7 < 22 <8 07/14/14 1172 +/- 165 <7 <8 < 36 <8 07/28/14 1273 +/- 122 <5 <5 < 32 <6 08/11/14 1138 +/- 135 <5 <7 < 35 < 11 08/25/14 1265 +/- 115 <4 <4 < 34 < 10 09/08/14 1201 +/- 164 <7 <8 < 41 < 14 09/22/14 1121 +/- 172 <7 <9 < 38 < 13 10/06/14 1116 +/- 184 <8 <8 < 40 < 13 10/20/14 1239 +/- 59 <2 <2 < 27 <7 11/03/14 1292 +/- 162 <8 < 10 < 47 < 11 11/17/14 1354 +/- 121 <4 <5 < 34 < 13 12/08/14 1274 +/- 148 <5 <7 < 24 <9 MEAN 1231 +/- 183 L 02/03/14 1305 +/- 165 <6 <7 < 39 < 12 05/05/14 1341 +/- 152 <9 <9 < 43 < 10 08/11/14 1374 +/- 157 <7 <7 < 39 < 12 11/03/14 1343 +/- 162 <6 <6 < 33 < 10 MEAN 1341 +/- 56 P 02/03/14 1178 +/- 146 <5 <6 < 35 <9 05/05/14 1058 +/- 147 <6 <8 < 40 < 10 08/11/14 1248 +/- 179 <5 <6 < 38 < 11 11103114 1365 +/- 139 <6 <7 < 29 < 12 MEAN 1212 +/- 257 C-16

Table C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION K-40 Cs-134 Cs-137 Ba-140 La-140 PERIOD R 01/06/14 1172 +/- 135 <7 <6 < 36 <8 02/03/14 1506 +/- 167 <8 <9 < 46 < 13 03/03/14 1419 +/- 132 <5 <6 < 33 <8 04/07/14 1161 +/- 145 <6 <7 < 38 < 10 04121/14 1298 +/- 122 <5 <5 < 27 <8 05/05/14 1325 +/- 141 <6 <7 < 33 < 11 05/19/14 1311 +/- 113 <5 <5 < 26 <7 06/02/14 1521 +/- 145 < 5 < 7 < 32 < 11 06/16/14 1335 +/- 189 < 9 < 10 < 42 < 10 06/30/14 1250 +/- 149 < 6 < 7 < 20 < 7 07/14/14 1134 +/- 169 < 7 < 8 < 35 < 10 07/28/14 1303 +/- 181 < 5 < 7 < 30 < 6 08/11/14 1395 +/- 116 < 4 < 5 < 28 < 9 08/25/14 1378 +/- 114 < 5 < 5 < 33 < 10 09/08/14 1326 +/- 131 < 5 < 6 < 30 < 8 09/22/14 1326 +/- 153 < 6 < 6 < 33 < 10 10/06/14 1176 +/- 181 < 8 < 11 < 52 < 15 10/20/14 1248 +/- 51 < 2 < 2 < 20 < 7 11/03/14 1342 +/- 170 < 6 <8 < 36 < 7 11/17/14 1200 +/- 109 <4 <5 < 39 < 12 12/08/14 1416 +/- 116 <4 <5 < 19 <6 MEAN 1312 +/- 215 S 01/06/14 1336 +/- 122 <5 <5 < 26 <8 02/03/14 1205 +/- 146 <6 <5 < 31 <7 03/03/14 1278 +/- 149 <6 <5 < 40 < 13 04/07/14 1297 +/- 135 <6 <6 < 30 <9 04/21/14 1286 +/- 133 <6 <6 < 38 < 10 05/05/14 1438 +/- 152 <8 <8 < 42 < 11 05/19/14 1475 +/- 169 <6 <7 < 44 < 15 06/02/14 1314 +/- 152 <5 <6 < 37 < 11 06/16/14 1281 +/- 158 <7 <9 < 35 < 12 06/30/14 1283 +/- 132 <5 <5 < 22 <7 07/14/14 1260 +/- 159 <5 <6 < 33 <8 07/28/14 1245 +/- 136 <5 <6 < 28 <7 08/11/14 1110 +/- 132 <4 <6 < 29 <9 08/25/14 1249 +/- 117 <4 <5 < 36 < 12 09/08/14 1352 +/- 152 <7 <6 < 44 <8 09/22/14 1098 +/- 118 <5 <5 < 29 <8 10/06/14 1433 +/- 185 <7 <8 < 40 <8 10/20/14 1315 +/- 46 <1 <2 < 18 <5 11/03/14 1059 +/- 172 <8 <9 < 47 < 13 11/17/14 1305 +/- 130 <4 <6 < 47 < 14 12/08/14 1245 +/- 144 <6 <6 < 26 <7 MEAN 1279 +/- 209 C-17

Table C-VII.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION K-40 Cs-134 Cs-137 Ba-140 La-140 PERIOD U 01/06/14 1309 +/- 161 <7 <7 < 38 <9 02/03/14 1145 +/- 167 <6 <8 < 35 < 10 03/03/14 1271 +/- 164 <6 <7 < 35 < 11 04/07/14 1222 +/- 116 <4 <4 < 19 <6 04/21/14 1239 +/- 154 <6 <7 < 32 <5 05/05/14 1233 +/- 176 <7 <8 < 43 < 11 05/19/14 1076 +/- 105 <4 <4 < 22 <7 06/02/14 1263 +/- 102 <4 <4 < 23 <5 06/16/14 1366 +/- 178 <6 <8 < 38 < 10 06/30/14 1209 +/- 146 <8 <8 < 32 <8 07/14/14 1291 +/- 163 <6 <8 < 35 <9 07/28/14 1192 +/- 154 <7 <7 < 38 < 10 08/11/14 1277 +/- 97 <4 <4 < 26 <7 08125/14 1356 +/- 84 <3 <4 < 22 <7 09/08/14 1224 +/- 176 <6 <7 < 37 < 13 09/22/14 1238 +/- 149 <6 <8 < 37 < 13 10/06/14 1232 +/- 149 <6 <7 < 40 <6 10/20/14 1212 +/- 34 <1 <1 < 13 <4 11/03/14 1338 +/- 216 <8 <8 < 53 <5 11/17/14 1193 +/- 136 <3 <4 < 29 < 13 12/08/14 1139 +/- 100 <4 <4 < 13 <5 MEAN 1239 +/- 143 W 02/04/14 1189 +/- 169 <7 <6 < 39 <5 05/05/14 1269 +/- 185 <7 <9 < 36 < 14 08/11/14 1385 +/- 174 <6 <7 < 36 < 10 11/03/14 1170 +/- 174 <5 <7 < 32 <9 MEAN 1253 +/- 195 C-18

Table C-VIII.1 CONCENTRATIONS OF GAMMA EMITTERS IN FOOD PRODUCT SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Co-60 1-131 Cs-134 Cs-137 PERIOD PERIOD 1Q May 2014 Vegetation Unavailable (1)

May 2014 Vegetation Unavailable (1)

May 2014 Vegetation Unavailable (1) 06/25/14 Green Cabbage < 181 2755 +/- 395 <22 < 18 < 21 < 35 < 20 <19 (1) 369 +/- 78.4 4069 +/- 251 <9 <7 <9

• 17 <9 <9 06/25/14 Ragweed Leaves 06/25/14 Tobaco Leaves (1) 734 +/- 276 7859 +/- 645 < 27 < 26 < 23 < 38 < 23 < 28 07/24/14 Head Cabbage < 120 2161 +/- 276 < 12 < 13 <13

• 23 < 11 < 14 07/24/14 Lettuce Leaves 708 +/- 190 3863 +/- 438 < 16 < 17 *17 < 32 <18

• 19 07/24/14 Tobacco Leaves (1) 522 +/- 251 6131 +/- 604 < 20 < 19

• 20 < 38 *17

• 27 08/26/14 Pepper Leaves 2806 +/- 180 12170 +/- 382 < 11 < 13 <12

• 50

• 10 <12 08/26/14 Ragweed Leaves (1) 1022 + 80 7747 +/- 193 <8 <9 <8

• 36 <7 <8 08/26/14 Tobacco Leaves (1) 264 + 73 6817 +/- 209 <7 <8 <8 < 36 <7 <8 09/24/14 Cabbage Leaves

• 195 3588 +/- 444 <20 < 17 <19

• 32

• 16 < 19 09/24/14 Tobacco Leaves (1)

• 266 6474 +/- 624 < 24 < 31 < 31 < 46

• 26

• 28 MEAN 918 +/- 1740 5785 +/- 5809 2Q May 2014 Vegetation Unavailable (1)

(1)

May 2014 Vegetation Unavailable May 2014 Vegetation Unavailable (1) 07/24/14 Broccoli Leaves (2) 727 +/- 282 2706 +/- 458 < 23 < 27 < 27 < 47

• 30

• 29 07/24/14 Kale Leaves < 236 6816 +/- 658 < 24 < 25 < 29 < 39

• 20 < 25 07/24/14 Sweet Corn Leaves 1945 +/- 316 4553 +/- 556 < 26 < 22 < 19 < 39

• 21

• 23 08/26/14 Broccoli Leaves 351 +/- 137 1594 +/- 218 < 12 < 14

• 12 < 59 < 12

• 15 08/26/14 Cabbage Leaves 261 +/- 169 2290 +/- 344 < 12 < 12

• 13 < 56 < 11

• 14 08/26/14 Kale Leaves 208 +/- 75 4985 +/- 227 <9 <9 < 10 < 47 < 8

• 10 09/24/14 Broccoli Leaves 498 +/- 239 1529 +/- 369 <21 < 19

• 22 < 44

• 22 < 32 09/24/14 Cabbage Leaves 341 +/- 125 2400 +/- 292 < 14 < 15

• 16

• 30 *17 < 18 09/24/14 Zuccini Leaves 431 +/- 135 4494 +/- 412 < 17 < 16 <17

• 31

• 16 <19 MEAN 595 +/- 1137 3485 +/- 3614 -

55 May 2014 Vegetation Unavailable (1)

May 2014 Vegetation Unavailable (1)

May 2014 Vegetation Unavailable (1) 06/25/14 Kale Leaves

• 174 7185 +/- 574 < 18 < 16 < 23 < 34 < 15

• 21 06/25/14 Kolrabi Leaves 286 +/- 249 7245 +/- 586 < 23

• 21

• 22 < 40

• 20 < 23 06/25/14 Sweet Corn Leaves 791 +/- 92 3317 +/- 189 <7 <8 <7

• 28 <7 <8 07/24/14 Kale Leaves < 189 6073 +/- 540

• 23 < 21

• 28 < 35

• 22

• 25 07/24114 Sweet Corn Leaves 1509 +/- 298 3764 +/- 513 < 29

• 29 < 34 < 43 < 28 < 28 07/24/14 UnwasheD Cabbage Leaves 390 +/- 193 4576 +/- 464

• 26

• 27

• 25

• 41

• 26

• 24 08/26/14 Red Beet Leaves 188 +/- 66 8807 +/- 221 <8 <8 <8

• 36 <8 <7 08/26/14 Sweet Corn Leaves 1141 +/- 101 4840 +/- 216 <9 < 11 <9 < 44 <8 <9 08/26/14 UnwasheD Cabbage Leaves

• 69 6329 +/- 188 <7 <8 <7 < 35 <7 <7 09/24/14 Broccoli Leaves

• 181 5132 +/- 550

• 23 < 21 <19 < 35 < 19

• 23 09/24/14 Cabbage Leaves

• 176 5453 +/- 534

• 23 <19

• 22

• 31

• 16 < 24 09/24/14 Sweet Corn Leaves < 222 5531 +/- 600 < 20 < 25 < 21 < 44 < 23 < 23 MEAN 718 +/- 1052 5688 +/- 3111 -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) SEE PROGRAM CHANGES SECTION FOR EXPLANATION C-19

Table C-IX.1 QUARTERLY OSLD RESULTS FOR PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS II UNITS OF MILLIREM/STD. MONTH +/- STANDARD DEVIATIONS STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/-2 S.D.

16 10.3 +/- 1.1 9.6 10.9 10.5 10.3 18 9.9 +/- 1.1 9.9 9.2 10.5 9.8 19 9.6 1 0.6 9.3 9.4 9.7 10.0 24 8.3 +/- 1.3 8.0 7.6 8.8 8.9 5 9.4 +/- 1.4 8.5 9.0 10.0 9.9 14 10.0 +/- 0.8 9.6 10.0 10.5 9.7 15 9.9 +/- 0.6 9.6 9.7 10.1 10.2 17 11.0 +/- 1.5 10.2 10.5 11.8 11.4 IT 16.0 +/- 0.0 16.0 (1) 22 10.2 +/- 0.9 9.6 10.0 10.6 10.5 23 10.3 +/- 1.3 9.5 10.1 10.8 10.9 26 11.0 +/- 1.9 9.6 11.4 11.6 11.4 27 10.5 +/- 0.8 10.1 10.3 11.0 10.5 32 10.4 +/- 2.0 9.0 10.6 11.2 10.9 3A 7.7 +/- 0.9 7.3 7.3 8.1 8.1 42 9.0 +/- 0.5 8.8 8.7 (2) 9.2 9.2 43 11.0 +/- 1.6 10.0 11.0 11.9 11.0 44 9.6 +/- 1.6 8.6 9.4 10.5 9.7 45 9.9 +/- 0.6 9.7 9.6 10.0 10.3 46 9.4 +/- 1.2 8.8 8.9 10.1 9.6 47 10.7 +/- 1.3 10.0 10.4 11.5 11.0 48 10.0 +/- 1.8 8.8 9.7 10.8 10.6 49 10.0 +/- 0.9 9.4 9.8 10.4 10.2 4K 7.1 +/- 0.4 6.8 7.0 7.2 7.3 50 12.1 +/- 2.7 10.5 13.7 (2) 12.5 (2) 11.8 51 10.0 +/- 0.8 10.2 9.4 10.3 10.2 (2) 6B 8.9 +/- 0.7 8.8 8.4 9.1 9.1 31A 8.7 +/- 1.2 7.9 8.9 9.3 8.6 2 9.9 +/- 1.1 9.3 9.6 10.6 10.0 1A 9.7 +/- 0.8 9.5 9.4 10.3 9.5 1B 8.9 +/- 0.9 8.4 8.6 9.4 9.1 ic 10.2 +/- 1.2 9.5 9.9 10.8 10.6 1D 10.1 +/- 1.1 9.5 9.7 10.7 10.4 IE 9.7 +/- 0.8 9.3 9.3 10.1 9.9 IF 11.0 +/- 1.0 10.3 11.0 11.5 11.0 1G 8.1 +/- 0.6 7.9 7.7 8.2 8.4 1H 10.0 +/- 1.0 9.6 9.5 10.6 10.2 11 9.4 +/- 0.7 9.3 8.9 9.6 9.7 1, 11.0 +/- 0.9 10.3 11.0 11.3 11.3 1K 10.6 +/- 0.9 10.2 10.4 11.2 10.5 1L 8.5 +/- 1.3 8.3 8.1 9.5 8.2 iM 6.9 +/- 0.5 6.9 6.6 7.2 7.0 ip 7.4 +/- 0.3 7.4 7.2 7.5 7.4 1Q 8.2 +/- 0.4 8.1 8.0 8.4 8.4 1R 12.6 +/- 1.7 11.6 12.3 13.5 13.1 2B 9.5 +/- 1.4 8.6 9.2 10.2 9.8 40 11.4 +/- 2.3 10.0 11.1 12.8 11.5 iNN 10.9 +/- 1.3 10.3 10.6 10.9 11.8 (1) SEE PROGRAM CHANGES SECTION FOR EXPLANATION (2) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-20

TABLE C-IX.2 MEAN QUARTERLY OSLD RESULTS FOR THE SITE BOUNDARY, INTERMEDIATE AND CONTROL LOCATIONS FOR PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF MILLIREM/MONTH +/- STANDARD DEVIATIONS OF THE STATION DATA COLLECTION SITE BOUNDARY INTERMEDIATE CONTROL PERIOD +/-2 S.D.

JAN-MAR 9.2 +/- 2.3 9.2 +/- 1.9 9.2 +/- 1.7 APR-JUN 9.4 +/- 2.9 9.7 +/- 2.7 9.3 +/- 2.7 JUL-SEP 10.2 +/- 3.2 10.4 +/- 2.4 9.9 +/- 1.6 OCT-DEC 9.9 +/- 3.0 10.3 +/- 3.2 9.8 +/- 1.2 TABLE C-IX.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF MILLI-ROENTGEN/STD. MONTH LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

SITE BOUNDARY 80 6.6 14 9.7 +/- 2.9 INTERMEDIATE 93 6.8 16 9.9 +/- 2.8 CONTROL 16 7.6 11 9.5 +/- 1.8 SITE BOUNDARY STATIONS - 1A, 1B, IC, 1D, 1E, 1F, 1G, 1H, 11, 1J, 1K, 1L, 1M, 1NN, 1P, 1Q, 1R, 2, 2B, 40 INTERMEDIATE STATIONS - 14,15,17, 1T, 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-21

FIGURE C-1 MONTHLY TOTAL GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 2014 6

4 L-CD 0L 2

0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MON7 PBAPS changed to total gross beta at the beginnir Previous data included summation of less than val

FIGURE C-2 MEAN ANNUAL CS-137 CONCENTRATIONS IN FISH SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 1971 - 2014 1000 750 E

0 J9 0

0 0.

250 0

71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 15 YEAR

FIGURE C-3 MEAN SEMI-ANNUAL CS-137 CONCENTRATIONS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 1971 - 2014 2000 1750 1500

• o 1250 c-I E

T- 1000 0

Im

750 0.

500 250 0

71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 15 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, 2014 60 50 40 E

=30

• 0 10 0

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 - 2014 1000 I I I I I I I F I I F I I I I I I I I I F I I F F I I I I I I I I I I I I I I I F I I I F I

' I ' I I I 't I I I I I F II I I I I I

I.5 100 I II I I I II I II I I I I I I I I I I I I I I I I F L I I IF I F I I I I I I I I I I I I I I nQ 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 F I I I I Im 10 I I I I I I I I I I I I I I Lw I I I I I I I F 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 F I I I I I F I I I I I I I I I I I I F 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 Ii II 1 1 1 1 I I I I I 1 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 00 02 04 06 08 10 12 14 YEAR

FIGURE C-6 MEAN ANNUAL CS-137 CONCENTRATIONS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 1971 - 2014 20 .. . . . . . . . . .

IIIIIII I III II1I1I1I I I I . IIiIIIII I I I I . I I II I . . I

. I I I I i

-[- DISTANT FARMS 15 --- INTERMEDIATE FARMS

-*-NEARBY FARMS II II I i I I I I I i I I i

0. tI I I I I I I C I I I I t I I I I It l Iil I 1 1 1 1 1 1 i11 I I I I I

-- ,-5 I I I I i I I. I I I I I I I 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 15 YEAR Note: Second half of 2000 switched to Intermediate Farms Discontinued from 1995 - 1999 reporting <MDA when no activity was detected.

Cs-I 37 milk LLD = 18 pcilliter Using MDA values result ina larger number.

FIGURE C- 7 MEAN QUARTERLY AMBIENT GAMMA RADIATION LEVELS IN THE VICINITY OF PBAPS, 1973 - 2014 12 10 6

E 8 t0j 00 U)

E CD w 6 4

2 73 75 77 79 81 83 85 87 89 91 93 95 97 99 01 03 05 07 09 11 13 15 OSLD technology use began January 2012, TLD YEAR technology ended December 2011. For only OSLD data, Gross mRem per standard month is reported.

FIGURE C-8 QUARTERLY AMBIENT GAMMA RADIATION LEVELS NEAR THE INDEPENDENT SPENT FUEL STORAGE INSTALLATION LOCATED AT PBAPS, 1998 - 2014 14 12 10 n~

E 8 C2 w 6 E) 4 2

0 b

q~ 3 ~~ lb~

OSLD technology use began January 2012, TLD ]YEAR ISFSI activated June, 2000 technology ended December 2011. For only OSLD data, Gross mRem per standard month is reported.

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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 4L PERIOD JAN < 1.2 FEB < 1.8 MAR < 1.9 APR < 1.8 MAY < 1.8 JUN < 1.9 JUL < 1.7 AUG < 1.9 SEP < 1.9 OCT < 1.1 NOV < 1.9 DEC < 1.3 MEAN TABLE D-1.2 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 K-*bUL I S IN UNI I b5011- PI/LI I lI: +/-:2 5I1MA COLLECTION 4L PERIOD JAN 1.7 +/- 0.7 FEB 2.0 +/- 0.7 MAR 2.3 +/- 0.8 APR 1.0 +/- 0.5 MAY 1.8 +/- 1.0 JUN 0.8 +/- 0.5 JUL 1.9 +/- 0.9 AUG 1.8 +/- 1.0 SEP < 1.8 OCT 3.4 +/- 1.1 NOV 2.3 +/- 0.7 DEC 1.7 +/- 0.8 MEAN 1.9 +/- 1.4

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

TABLE D-1.3 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER 12 SIGMA COLLECTION 4L PERIOD

- 4A lt. ý APR-JUN < 142 JUL-SEP < 156 OCT-DEC

• 169 MEAN TABLE D-I.4 CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION 4L PERIOD JAN

• 0.4 FEB

• 0.3 MAR

• 0.5 APR < 0.3 MAY

• 0.4 JUN < 0.5 JUL

• 0.3 AUG < 0.2 SEP

• 0.5 OCT

• 0.3 NOV < 0.3 DEC < 0.3 MEAN D-2

TABLE D-I.5 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 FE-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD I

4L JAN <2 <3 <3 <2 <2 <4 <3 <2 <3 <11 <2 FEB <2 <3 <2 <2 <3 <4 <2 <3 <2 <11 <2 MAR <1 <4 <2 <2 <1 <4 <2 <3 <2 < 14 <3 APR <2 <3 <2 <2 <3 <5 <3 <3 <2 < 14 <4 MAY <2 <4 <2 <3 <4 <5 <3 <2 <3 < 11 <3 JUN <2 <3 <2 <2 <3 <5 <2 <2 <3 < 13 <3 JUL <3 < 10 <5 <3 <7 <4 <6 <5 <4 < 26 <8 AUG <2 <4 <2 <2 <5 <3 <3 <2 <2 < 19 <3 SEP <3 <3 <3 < 1 <1 <4 <4 <2 <3 < 18 <3 OCT <2 <2 <2 < 3 <4 <8 <3 <2 <3 < 18 <4 NOV <2 <4 <3 < 2 <3 <3 <3 <2 <3 < 24 <4 DEC <2 <3 <4 <1 <2 <6 <3 <3 <2 < 14 <2 MEAN

TABLE D-II.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, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION IA IA PERIOD GROSS BETA 1-131 1 Z63 :t 4 < I1 2 30 +/- 5 < 23 3 .32 +/- 4

• 13 4 24 +/- 4 < 21 5 26 +/- 5 < 13 6 50 +/- 6

• 16 7 33 +/- 4

• 20 8 19 +/- 4

• 18 9 43+/- 5 < 11 10 28+ 5 < 21 11 19 4

• 18 12 27+/- 4

• 24 13 18+/- 4

• 21 14 23+/- 5 < 26 15 27 4 < 12 16 30+/- 5

• 16 17 15+/- 4 < 17 18 23 +/- 4 < 17 19 23 +/- 4

• 24 20 22 +/- 5 < 15 21 19 4 < 15 22 17+/- 4 < 20 23 15 4 < 10 24 20+/- 4

• 12 25 16+/- 4 < 21 26 11 4 < 28 27 21 +/-3

• 12 28 19 3 < 14 29 20 +/-4 <2 30 17+/- 3 < 19 31 20+/- 4 <2 32 18+/- 4 < 14 33 23 +/- 4 < 20 34 20 +/- 4 < 11 35 21 +/- 4

• 20 36 21 +/- 4 < 25 37 21 +/- 4 < 14 38 22 +/- 4 < 25 39 32 +/- 4 < 21 40 23 +/- 4 < 15 41 22 +/- 4 < 17 42 17+/- 4 <1 43 30 4 < 14 44 25 +/- 4 < 23 45 24 4 < 23 46 24-+/- 4

• 23 47 26 4 < 15 48 22+/- 3 < 15 49 20+/- 4 < 10 50 31 +/- 4 < 16 51 14 +/- 3 < 14 52 29 +/- 4 < 13 MEAN 23 +/- 14 D-4

TABLE D-II.2 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA SITE COLLECTION Be-7 Mn-54 Co-58 Co-60 Cs-134 Cs-137 PERIOD 1A 83 +/- 15

• 1.0 < 0.6 < 0.6 < 1.0 < 0.5 91 +/- 21 < 0.8 < 0.4 < 0.4 < 0.4 < 0.5 103 +/- 23 < 1.1 < 0.7 < 0.4 < 1.1 < 0.6 56 +/- 13 < 0.5 < 0.6 < 0.7 < 0.8 < 0.4 MEAN* 83 +/- 40 D-5

TABLE D-Ill.1 CONCENTRATIONS OF 1-131 BY CHEMICAL SEPARATION AND GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION 1-131 K-40 Cs-1 34 Cs-1 37 Ba-140 La-1 40 PERIOD J 02/03/14 < 0.3 1329 + 120 <4 <4 <9 <3 05/05/14

• 0.2 1413 +/- 83 <2 <3 < 24 <3 08/11/14

• 0.5 1342 +/- 100 <2 <3

• 23 <6 11/03/14 < 0.3 1259 +/- 146 <5 <6 <17 <2 MEAN 1336 +/- 127 S 02/03/14 < 0.4 1469 +/- 119 <4 <3 <13 <2 05/05/14

• 0.2 1351 +/- 77 <3 <3 < 27 <8 08/11/14

• 0.4 1460 +/- 102 <2 <3

• 28 <7 11/03/14

• 0.3 806 +/- 145 <2 <7 < 24 <3 MEAN 1272 +/- 630 V 02/03/14 < 0.5 1277 +/- 108 <2 <3 <14 <3 05/05/14 < 0.2 1248 +/- 98 <3 <4 < 32 <8 08/11/14 < 0.5 1408 +/- 101 <4 <4 < 25 <4 11/03/14 < 0.5 1213 +/- 118 <4 <4 < 27 <2 MEAN 1286 +/- 171 D-6

TABLE D-IV.1

SUMMARY

OF COLLECTION DATES FOR SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2014 DRINKING WATER (GROSS BETA & GAMMA SPECTROSCOPY)

COLLECTION PERIOD 4L JAN 01/02(14 - 01/30/14 FEB 01/30/14 - 02/27/14 MAR 02/27/14 - 03/27/14 APR 03/27/14 - 05/01/14 MAY 05/01/14 - 05/29/14 JUN 05/29/14 - 06/26/14 JUL 06/26/14 - 07/31/14 AUG 07/31/14 - 08/28/14 SEP 08/28/14 - 10/02/14 OCT 10/02/14 - 10/30/14 NOV 10/30/14 - 11/26/14 DEC 11/26/14 - 01/02/15 AIR PARTICULATE (GAMMA SPECTROSCOPY)

COLLECTION PERIOD 1A JAN-MAR 01/01/14 - 04/03/14 APR-JUN 04/03/14 - 07/02/14 JUL-SEP 07/02/14 - 10/02/14 OCT-DEC 10/02/14 - 01/02/15 AIR PARTICULATE (GROSS BETA) AND AIR IODINE (1-131)

COLLECTION COLLECTION PERIOD 1A PERIOD 1A 1 01/01/14 - 01/09/14 27 07/02/14 - 07/10/14 2 01/09/14 - 01/15/14 28 07/10/14 - 07/17/14 3 01/15/14 - 01/23/14 29 07/17/14 - 07/23/14 4 01/23/14 - 01/30/14 30 07/23/14 - 07/31/14 5 01/30/14 - 02/06/14 31 07/31/14 - 08/07/14 6 02/06/14 - 02/12/14 32 08/07/14 - 08/14/14 7 02/12/14 - 02/20/14 33 08/14/14 - 08/21/14 8 02/20/14 - 02/27/14 34 08/21/14 - 08/28/14 9 02/27/14 - 03/06/14 35 08/28/14 - 09/04/14 10 03/06/14 - 03/13/14 36 09/04/14 - 09/11/14 11 03/13/14 - 03/20/14 37 09/11/14 - 09118/14 12 03/20/14 - 03/27/14 38 09/18/14 - 09/25/14 13 03/27/14 - 04/03/14 39 09/25/14 - 10/02/14 14 04/03/14 - 04/09/14 40 10/02/14 - 10/09/14 15 04/09/14 - 04/17/14 41 10/09/14 - 10/16/14 16 04/17/14 - 04/24/14 42 10/16/14 - 10/23/14 17 04/24/14 - 05/01/14 43 10/23/14 - 10/30/14 18 05/01/14 - 05/08/14 44 10/30/14 - 11/06/14 19 05/08/14 - 05/15/14 45 11/06/14 - 11/13/14 20 05/15/14 - 05/22/14 46 11/13/14 - 11/20/14 21 05/22/14 - 05/29/14 47 11/20/14 - 11/26/14 22 05/29/14 - 06/05/14 48 11/26/14 - 12/04/14 23 06/05/14 - 06/12/14 49 12/04/14 - 12/11/14 24 06/12/14 - 06/19/14 50 12/11/14 - 12/18/14 25 06/19/14 - 06/26/14 51 12/18/14 - 12/26/14 26 06/26/14 - 07/02/14 52 12/26/14 - 01/02/15 D-7

FIGURE D-1 COMPARISON OF MONTHLY TOTAL GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES SPLIT BETWEEN THE PRIMARY AND QC LABORATORIES, 2014 10.0 8.0 6.0 0

0. 4.0 2.0 0.0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH ENVIRONMENTAL INC. SOLUBLE AND INSOLUBLE FRACTIONS WERE COMBINED FOR TOTAL GROSS BETA

FIGURE D-2 COMPARISON OF WEEKLY GROSS BETA CONCENTRATIONS FROM COLLOCATED AIR PARTICULATE LOCATIONS SPLIT BETWEEN THE PRIMARY AND QC LABORATORIES, 2014 60

-B-QC LAB l 40 ..... .. ..--- .. . . . . ....... . ...-- - .. .. .- -. - -

C'),

40 S I 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, 2014 (PAGE 1 OF 3)

Identification Reported Known Ratio (c)

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

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

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

Identification Reported Known Ratio (c)

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

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

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

Identification Reported Known Ratio (c)

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

December 2014 E11081 AP Ce-141 pCi 96.4 102 0.95 A Cr-51 pCi 171 190 0.90 A Cs-1 34 pCi 73.1 76.9 0.95 A Cs-137 pCi 99.0 92.6 1.07 A Co-58 pCi 57.5 60.8 0.95 A Mn-54 pCi 107 105 1.02 A Fe-59 pCi 74.2 81.6 0.91 A Zn-65 pCi 144 139 1.04 A Co-60 pCi 114 110 1.04 A El 1080 Charcoal 1-131 pCi 93.5 98.2 0.95 A El 1082 Water Fe-55 pCi/L 1760 1970 0.89 A (a) Teledyne Brown Engineeringreported result.

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

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

(d) Analytics evaluationbased on TBE internalQC limits. A= Acceptable, reportedresult falls within ratiolimits of 0.80-120.

W-Acceptable with warning, reportedresult falls within 0. 70-0.80 or 1.20-1.30. N = Not Acceptable, reported result falls outside the ratio limits of < 0.70 and > 1.30.

E-3

TABLE E-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2014 (PAGE 1 OF 1)

Identification Reported Known Acceptance Month/Year Number Media Nuclide Units Value (a) Value (b) Limits Evaluation (c)

May 2014 RAD-97 Water Sr-89 pCi/L 38.25 36.7 27.5 - 43.6 A Sr-90 pCi/L 24.65 26.5 19.2-30.9 A Ba-1 33 pCi/L 89.1 87.9 74.0 - 96.7 A Cs-1 34 pCi/L 45.55 44.3 35.5- 48.7 A Cs-1 37 pCi/L 91.15 89.1 80.2- 101 A Co-60 pCi/L 65.10 64.2 57.8- 73.1 A Zn-65 pCi/L 244 235 212-275 A Gr-A pCi/L 45.65 61.0 31.9- 75.8 A Gr-B pCi/L 27.95 33.0 21.4-40.7 A 1-131 pCi/L 23.75 25.7 21.3- 30.3 A U-Nat pCi/L 9.61 10.2 7.95- 11.8 A H-3 pCi/L 8435 8770 7610-9650 A MRAD-20 Filter Gr-A pCi/filter 28.0 46.0 15.4-71.4 A November 2014 RAD-99 Water Sr-89 pCi/L 30.4 31.4 22.8- 38.1 A Sr-90 pCi/L 18.6 21.8 15.6- 25.7 A Ba-1 33 pCi/L 46.8 49.1 40.3 - 54.5 A Cs- 134 pCi/L 88.0 89.8 73.7- 98.8 A Cs-1 37 pCi/L 99.0 98.8 88.9-111 A Co-60 pCi/L 92.5 92.1 82.9- 104 A Zn-65 pCi/L 325 310 279 - 362 A Gr-A pCi/L 29.9 37.6 19.4-48.1 A Gr-B pCi/L 27.5 27.4 17.3-35.3 A 1-131 pCi/L 15.8 20.3 16.8- 24.4 N(1)

U-Nat pCi/L 5.74 5.80 4.34 - 6.96 A H-3 pCi/L 6255 6880 5940 - 7570 A MRAD-21 Filter Gr-A pCi/filter 27.3 36.9 12.4- 57.3 A (1) The Iodine-131 was evaluated as failed with a ratio of 0. 778. No cause could be found for the slighly low activity. TBE would evaluate this as acceptablie with warning. A rerun was not possible due to 1-131 decay. All ERA Iodine- 131 evaluations since 2004 have been acceptable. NCR 14-08 (a) Teledyne Brown Engineering reportedresult.

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

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

E-4

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

TELEDYNE BROWN ENGINEERING, 2014 (PAGE 1 OF 2)

Identification Reported Known Acceptance Month/Year Number Media Nuclide* Units Value (a) Value (b) Range Evaluation (c)

March 2014 14-MaW30 Water Am-241 Bq/L 0.764 0.720 0.504 - 0.936 A Cs-1 34 Bq/L 20.7 23.1 16.2- 300 A Cs-1 37 Bq/L 28.0 28.9 20.2 - 37.6 A Co-57 Bq/L 26.5 27.5 19.3- 35.8 A Co-60 Bq/L 15.6 16.0 11.2-20.8 A H-3** Bq/L NR 321 225-417 N (3)

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

Pu-238 Bq/L 0.911 0.828 0.580 - 1.076 Pu-2391240 Bq/L 0.751 0.676 0.473 - 0.879 K-40 Bq/L NR (1) N (3)

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

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

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

Zn-65 Bq/L -0.201 (1) A 14-MaS30 Soil Cs-1 34 Bq/kg 2.02 (1) A Cs-1 37 Bq/kg 1300 1238 867- 1609 A Co-57 Bq/kg 1069 966 676-1256 A Co-60 Bq/kg 1.32 1.22 (2) A Mn-54 Bq/kg 1510 1430 1001 - 1859 A K-40 Bq/kg 669 622 435 - 809 A Sr-90 Bq/kg 4.14 (1) A Zn-65 Bq/kg 763 695 487 - 904 A 14-RdF30 AP Cs-i 34** Bq/sample NR 1.91 1.34-2.48 N (3)

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

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

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

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

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

Zn-65** Bq/sample NR (1) N (3) 14-GrF30 AP Gr-A Bq/sample 0.606 1.77 0.53 - 3.01 A Gr-B Bq/sample 0.7507 0.77 0.39-1.16 A 14-RdV30 Vegetation Cs-134 Bq/sample 5.96 6.04 4.23- 7.85 A Cs-137 Bq/sample 5.06 4.74 3.32-6.16 A Co-57 Bq/sample 11.8 10.1 7.1 - 13.1 A Co-60 Bq/sample 7.34 6.93 4.85 - 9.01 A Mn-54 Bq/sample 8.95 8.62 6.03- 11.21 A Sr-90 Bq/sample 1.23 1.46 1.02- 1.90 A Zn-65 Bq/sample 8.91 7.86 5.50- 10.22 A E-5

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

TELEDYNE BROWN ENGINEERING, 2014 (PAGE 2 OF 2)

Identification Reported Known Acceptance Month/Year Number Media Nuclide* Units Value (a) Value (b) Range Evaluation (c)

September 2014 14-MaW31 Water Am-241 Bq/L 0.705 0.88 0.62- 1.14 A Cs-1 34*** Bq/L NR (1) N (4)

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

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

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

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

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

Zn-65*** Bq/L NR 10.9 7.6- 14.2 N (4) 14-MaS31 Soil Cs-I 34~** Bq/kg NR 622 435-809 N (4)

Cs-i 37** Bq/kg NR (1) N (4)

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

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

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

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

Sr-90 Bq/kg 694 858 601-1115 A Zn-65*** Bq/kg NR 541 379-703 N (4) 14-RdF31 AP Sr-90 Bq/sample 0.310 0.703 0.492 - 0.914 N (4) 14-GrF31 AP Gr-A Bq/sample 0.153 0.53 0.16-0.90 N (4)

Gr-B Bq/sample 0.977 1.06 0.53- 1.59 A September 2014 14-RdV31 Vegetation Cs-1 34 Bq/sample 7.31 7.38 5.17- 9.59 A Cs-1 37 Bq/sample 8.93 8.14 5.70- 10.58 A Co-57 Bq/sample 10.8 9.2 6.4-12.0 A Co-60 Bq/sample 6.31 6.11 4.28 - 7.94 A Mn-54 Bq/sample 7.76 7.10 4.97 - 9.23 A Sr-90 Bq/sample 0.738 0.85 0.60- 1.11 A Zn-65 Bq/sample 7.16 6.42 4.49 - 8.35 A The MAPEP cross check isotope list has been reduced due to duplication of effort or analysis not being performed for clients.

These nuclides are no longer part of the TBE cross check program due to duplication of effort or analysis not being performed for clients. MAPEP evaluates non-reported analyses as failed if they were reported in the previous series.

All future gamma cross check samples for these isotopes will be provided by Analytics.

(1) Falsepositive test.

(2) Sensitivity evaluation.

(3) Water, NI-63 overlooked when reporting,but the result of 32.7 +- 1.69 would have passed the acceptancecriteria. NCR 14-04 Water, the non-detected K-40 was overlooked when reporting,but would have passed the false positive test. NCR 14-04 AP, Sr-GO rerun was within the low range of the acceptqance criteria. The originaland rerun results were statisticallythe same. No cause could be identified for the slightly low Sr-90 activity. NCR 14-04 For non reported (NR) analyses, MAPEP evaluates as failed if they were reported in the previous series. NCR 14-04 (4) AP, Sr-90 gravimetricyield was very high at 117%. Could indicatelarger than normal amounts of calcium in the AP. A second fuming HNO3 separation would be requiredto remove the excess calcium. NCR 14-09 AP, Gr-Alpha was counted on the wrong side. When flipped over and recounted the results were acceptable. NCR 14-09 For non reported (NR) analyses, MAPEP evaluates as failed if they were reported in the previous series. NCR 14-09 (a) Teledyne Brown Engineeringreported result.

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

(c) DOEIMAPEPevaluation:A=acceptable,W=-acceptable with warning, N=not acceptable.

E-6

TABLE E-4 ERA STATISTICAL

SUMMARY

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1384 4/7/2014 Sr-89 40.29 +/- 5.76 36.70 27.50 - 43.60 Pass ERW-1384 4/7/2014 Sr-90 24.08 +/- 2.35 26.50 19.20 - 30.90 Pass ERW-1385 4/7/2014 Ba- 133 78.23 +/- 3.93 87.90 74.00 - 96.70 Pass ERW-1385 4/7/2014 Co-60 62.75 +/- 3.53 64.20 57.80 - 73.10 Pass ERW-1385 4/7/2014 Cs-1 34 44.97 +/- 3.99 44.30 35.50 - 48.70 Pass ERW-1385 4/7/2014 Cs-137 88.54 +/- 4.93 89.10 80.20 - 101.00 Pass ERW-1385 4/7/2014 Zn-65 249.1 +/- 10.44 235.0 212.0 - 275.0 Pass ERW-1388 4/7/2014 Gr. Alpha 56.70 +/- 2.47 61.00 31.90 - 75.80 Pass ERW-1388 4/7/2014 Gr. Beta 32.10 +/- 1.20 33.00 21.40 - 40.70 Pass ERW-1391 4/7/2014 1-131 25.52 +/- 1.12 25.70 21.30 - 30.30 Pass ERW-1 394 4/7/2014 Uranium 10.76 +/- 0.74 10.20 7.95 - 11.80 Pass ERW-1397 4/7/2014 H-3 8982 +/- 279 8770 7610 - 9650 Pass ERW-5382 10/6/2014 Sr-89 29.40 +/- 5.32 31.40 22.80 - 38.10 Pass ERW-5382 10/6/2014 Sr-90 19.19 +/- 1.85 21.80 15.60 - 25.70 Pass ERW-5385 10/6/2014 Ba-133 43.54 +/- 4.54 49.10 40.30 - 54.50 Pass ERW-5385 10/6/2014 Cs- 134 81.95 +/- 7.49 89.80 73.70 - 98.80 Pass ERW-5385 10/6/2014 Cs-1 37 95.76 +/- 5.50 98.80 88.90 - 111.00 Pass ERW-5385 10/6/2014 Co-60 90.25 +/- 2.77 92.10 82.90 - 104.00 Pass ERW-5385 10/6/2014 Zn-65 327.4 +/- 23.3 310.00 279.0 - 362.0 Pass ERW-5388 10/6/2014 Gr. Alpha 30.88 +/- 8.05 37.60 19.40 - 46.10 Pass ERW-5388 10/6/2014 G. Beta 20.47 +/- 4.75 27.40 17.30 - 35.30 Pass ERW-5392 10/6/2014 1-131 19.58 +/- 2.35 20.30 16.80 - 24.40 Pass ERW-5394 10/6/2014 Uranium 5.51 +/- 0.37 5.80 4.34 - 6.96 Pass ERW-5397 10/6/2014 H-3 6876 + 383 6880 5940 - 7570 Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

c Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA.

E-7

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

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-1140 2/1/2014 Gr. Alpha 0.77 +/- 0.06 0.85 0.26 - 1.44 Pass MAW-1140 2/1/2014 Gr. Beta 4.31 +/- 0.08 4.19 2.10 - 6.29 Pass MAW-1 184 2/1/2014 Fe-55 0.40 +/- 3.20 0.00 -0.01 2.00 Pass MAW-1 184 2/1/2014 H-3 345.10 +/- 10.60 321.00 225.00 417.00 Pass MAW-1184 2/1/2014 Ni-63 32.40 +/- 3.20 34.00 23.80 44.20 Pass MAW-I 184 2/1/2014 Pu-238 1.28 +/- 0.12 0.83 0.58 1.08 Fail (1)

MAW-1184 2/1/2014 Pu-239/240 0.91 +/- 0.10 0.68 0.47 0.88 Fail (1)

MAW-i 184 2/1/2014 Sr-O90 7.00 +/- 0.70 8.51 5.96 11.06 Pass MAW-1184 2/1/2014 U-233/234 0.20 +/- 0.07 0.23 0.16 0.29 Pass MAW-i 184 2/1/2014 U-238 1.25 +/- 0.18 1.45 1.02 1.89 Pass MAW-i 184 2/1/2014 Co-57 27.86 +/- 0.38 27.50 19.30 35.80 Pass MAW-1184 2/1/2014 Co-60 15.99 +/- 0.27 16.00 11.20 20.80 Pass MAW-1184 2/1/2014 Cs-1 34 21.85 +/- 0.54 23.10 16.20 30.00 Pass MAW-1184 2/1/2014 Cs-1 37 28.74 +/- 0.49 28.90 20.20 37.60 Pass MAW-1184 2/1/2014 K-40 1.80 +/- 2.00 0.00 0.00 10.00 Pass MAW-1184 2/1/2014 Mn-54 14.06 +/- 0.40 13.90 9.70 18.10 Pass MAW-1 184 2/1/2014 Zn-65 0.00 +/- 0.19 0.00 -0.01 0.00 Pass MAVE-1 148 2/1/2014 Co-57 11.63 +/- 0.19 10.10 7.10 13.10 Pass MAVE-I 148 2/1/2014 Co-60 7.28 +/- 0.18 6.93 4.85 9.01 Pass MAVE-1 148 2/1/2014 Cs-1 34 6.29 +/- 0.29 6.04 4.23 7.85 Pass MAVE-1 148 2/1/2014 Cs-137 5.18 +/- 0.20 4.74 3.32 6.16 Pass MAVE-1 148 2/1/2014 Mn-54 9.22 +/- 0.26 8.62 6.03 11.21 Pass MAVE-1148 2/1/2014 Zn-65 8.59 +/- 0.40 7.86 5.50 10.22 Pass MAAP-1 151 2/1/2014 Co-57 1.60 +/- 0.05 0.00 NA Fail (2)

MAAP-1 151 2/1/2014 Co-60 1.38 + 0.08 1.39 0.97 - 1.81 Pass MAAP-I 151 2/1/2014 Cs-134 1.75 +/- 0.11 1.91 1.34 - 2.48 Pass MAAP-1151 2/1/2014 Cs-137 1.81 +/- 0.10 1.76 1.23 - 2.29 Pass MAAP-1 151 2/1/2014 Mn-54 0.01 +/- 0.03 0.00 NA Pass MAAP-1 151 2/1/2014 Zn-65 -0.24 +/- 0.09 0.00 -0.50 - 1.00 Pass MAAP-1 151 2/1/2014 Sr-90 1.11 +/- 0.14 1.18 0.83 - 1.53 Pass MAAP-1 154 2/1/2014 Gr. Alpha 0.56 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-1 154 2/1/2014 Gr. Beta 0.98 +/- 0.06 0.77 0.39 - 1.16 Pass MASO-1 146 2/1/2014 Ni-63 4.80 +/- 15.30 0.00 NA Pass MASO-1 146 2/1/2014 Co-57 1064.50 +/- 3.60 966.00 676.00 - 1256.00 Pass MASO-1 146 2/1/2014 Co-60 1.70 +/- 0.50 1.22 (3) Pass MASO-1 146 2/1/2014 Cs-134 6.10 +/- 1.80 0.00 NA Fail (4)

MASO-1 146 2/1/2014 Cs-137 1364.30 +/- 5.30 1238.00 867.00 - 1609.00 Pass MASO-1 146 2/1/2014 K-40 728.90 +/- 15.90 622.00 435.00 - 809.00 Pass MASO-1 146 2/1/2014 Mn-54 1588.00 +/- 6.00 1430.00 1001.00 - 1859.00 Pass MASO-1 146 2/1/2014 Zn-65 763.50 +/- 6.80 695.00 487.00 - 904.00 Pass MASO-1 146 2/1/2014 Sr-90 1.23 +/- 1.37 0.00 NA Pass E-8

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

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MASO-4439 8/1/2014 Ni-63 771.62 +/- 23.29 980.00 686.00 - 1274.00 Pass MASO-4439 8/1/2014 Sr-90 778.34 +/- 17.82 858.00 601.00 - 1115.00 Pass MASO-4439 8/1/2014 Cs-1 34 520.60 +/- 7.09 622.00 435.00 - 809.00 Pass MASO-4439 8/1/2014 Co-57 1135.00 +/- 7.40 1116.00 781.00 - 1451.00 Pass MASO-4439 8/1/2014 Co-60 768.20 +/- 7.70 779.00 545.00 - 1013.00 Pass MASO-4439 8/1/2014 Mn-54 1050.70 +/- 12.60 1009.00 706.00 - 1312.00 Pass MASO-4439 8/1/2014 Zn-65 407.89 +/- 15.03 541.00 379.00 - 703.00 Pass MAW-4431 8/1/2014 Am-241 0.79 +/- 0.08 0.88 0.62 - 1.14 Pass MAW-4431 8/1/2014 Cs-1 37 18.62 +/- 0.54 18.40 12.90 - 23.90 Pass MAW-4431 8/1/2014 Co-57 24.85 +/- 0.42 24.70 17.30 - 32.10 Pass MAW-4431 8/1/2014 Co-60 12.27 +/- 0.38 12.40 8.70 - 16.10 Pass MAW-4431 8/1/2014 H-3 207.20 +/- 10.60 208.00 146.00 - 270.00 Pass MAW-4431 8/1/2014 Fe-55 55.10 +/- 14.80 31.50 22.10 - 41.00 Fail (5)

MAW-4431 8/1/2014 Mn-54 14.36 +/- 0.53 14.00 9.80 - 18.20 Pass MAW-4431 8/1/2014 Zn-65 11.46 +/- 0.78 10.90 7.60 - 14.20 Pass MAW-4493 8/1/2014 Gr. Alpha 0.93 +/- 0.07 1.40 0.42 - 2.38 Pass MAW-4493 8/1/2014 Gr. Beta 6.31 +/- 1.35 6.50 3.25 - 9.75 Pass MAAP-4433 8/1/2014 Sr-90 0.74 +/- 0.10 0.70 0.49 - 0.91 Pass MAAP-4444 8/1/2014 Sr-89 7.82 +/- 0.52 9.40 6.60 - 12.20 Pass MAAP-4444 8/1/2014 Sr-90 0.76 +/- 0.10 0.76 0.53 - 0.99 Pass MAVE-4436 8/1/2014 Cs-1 34 7.49 +/- 0.18 7.38 5.17 - 9.59 Pass MAVE-4436 8/1/2014 Co-57 11.20 +/- 0.19 9.20 6.40 - 12.00 Pass MAVE-4436 8/1/2014 Co-60 6.84 +/- 0.17 6.11 4.28 - 7.94 Pass MAVE-4436 8/1/2014 Mn-54 8.11 +/- 0.26 7.11 4.97 - 9.23 Pass MAVE-4436 8/1/2014 Zn-65 7.76 +/- 0.43 6.42 4.49 - 8.35 Pass a Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

b Laboratory codes as follows: MAW (water), MAAP (air filter), MASO (soil), MAVE (vegetation).

c MAPEP results are presented as the known values and expected laboratory precision (1 sigma, I determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". MAPEP does not provide control limits.

(1) The high bias on the plutonium crosscheck samples was traced to contamination from a newly purchased standard.

The results of reanalysis with replacement tracer purchased from NIST:

MAW-1184 Pu-238 0.68 +/- 0.10 Bq IL MAW-1184 Pu-239/240 0.66 +/- 0.10 Bq / L (2) Interference from Eu-152 resulted in misidentification of Co-57.

(3) Provided in the series for "sensitivity evaluation". MAPEP does not provide control limits.

(4) False positive test. Long sample counting time lead to interference from naturally occunng Bi-214 in sample matrix with a close spectral energy.

(5) Result of reanalysis Fe-55 32.63 +/- 16.30 Bq/L E-9

APPENDIX F ERRATA DATA

There is no errata data for 2014.

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 2014 Through 31 December 2014 Prepared By Teledyne Brown Engineering Environmental Services

• Exeton Generation.

Peach Bottom Atomic Power Station Delta, PA 17314 May 2015

Table of Contents I. Sum mary and Conclusions ......................................................................................... 1 I1. Introduction .............................................................................................................. 3 A. Objectives of the RGPP .................................................................................. 3 B. Implem entation of the Objectives .................................................................... 4 C. Program Description ....................................................................................... 4 D. Characteristics of Tritium (H-3) ....................................................................... 5 III. Program Description ................................................................................................... 6 A. Sam ple Analysis .............................................................................................. 6 B. Data Interpretation ......................................................................................... 6 C. Background Analysis ....................................................................................... 7

1. Background Concentrations of Tritium ................................................. 8 IV. Results and Discussion ........................................................................................... 10 A. Groundwater Results ..................................................................................... 10 B. Surface W ater Results .................................................................................. 11 C. Precipitation W ater Results ........................................................................... 11 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 ................................................................................................. 12 I. Actions Taken ................................................................................................ 14 J. Deviations ...................................................................................................... 14 V. References ................................................................................................................... 15

Appendices Appendix A Sampling Locations, Distance and Direction Tables Table A-1 Radiological Groundwater Protection Program - Sampling Locations, Distance and Direction, Peach Bottom Atomic Power Station, 2014 Figures Figure A-1 Well Water Locations, Peach Bottom Atomic Power Station, 2014 Figure A-2 RGPP Monitoring Locations, Peach Bottom Atomic Power Station, 2014 Appendix B Data Tables Tables 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, 2014.

Table B-1.2 Concentrations of Gamma Emitters in Groundwater and Seep Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2014.

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, 2014.

Table B-11.1 Concentrations of Tritium in Surface Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2014.

Table B-11.2 Concentrations of Gamma Emitters in Surface Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2014.

Table B-1ll.1 Concentrations of Tritium in Precipitation Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2014.

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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 2014 through 31 December 2014. This evaluation involved numerous station personnel and contractor support personnel. At PBAPS, 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 REMP. This is the seventh in a series of annual reports on the status of the RGPP conducted at PBAPS. This report covers groundwater, surface water, seep water and precipitation water samples collected from the environment on station property in 2014. During that time period, 720 analyses were performed on more than 231 samples from 41 locations. These 41 locations include 27 groundwater monitoring wells, 3 surface water sample points, 3 groundwater seeps and 2 yard drain sumps (groundwater) and 6 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 PBAPS 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 PBAPS had no adverse radiological impact on the environment and there are no known active releases into the groundwater at PBAPS.

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

Tritium was not detected in any groundwater locations at concentrations greater than the United States Environmental Protection Agency (USEPA) drinking water standard (and the Nuclear Regulatory Commission [NRC] Reporting Limit) of 20,000 pCi/L. Low levels of tritium were detected at concentrations greater than the minimum detectable concentration (MDC) in 11 of 27 groundwater monitoring 1

wells. The tritium concentrations ranged from 147 +/- 71 pCi/L to 8,560 +/- 899 pCi/L (Table B-1.1, Appendix B). 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 2014. Gross Alpha (dissolved) was detected in 6 of 25 groundwater locations analyzed. The concentrations ranged from 1.3 to 13.3 pCi/L. Gross Alpha (suspended) was detected in 5 of 25 groundwater locations analyzed. The concentrations ranged from 1.0 to 4.8 pCi/L. Gross Beta (dissolved) was detected in 23 of 25 groundwater locations analyzed. The concentrations ranged from 1.2 to 16.6 pCi/L. Gross Beta (suspended) was detected in 8 of 25 groundwater locations analyzed. The concentrations ranged from 1.4 to 18.9 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 (Table B-1.3, Appendix B).

The analyses for groundwater included iron-55 (Fe-55), nickel-63 (Ni-63),

americium-241 (Am-241), curium-242 (Cm-242), Cm-243/244, plutonium-238 (Pu-238), Pu-239/240, uranium-234 (U-234), U-235 and U-238. U-234 was detected in 8 of 24 groundwater monitoring locations analyzed. The concentrations ranged from 0.45 to 7.65 pCi/L. U-235 was detected at one groundwater monitoring location at a concentration of 0.70 pCi/L. U-238 was detected in 8 of 24 groundwater monitoring locations analyzed. The concentrations ranged from 0.18 to 6.27 pCi/L. No plant produced radionuclides were detected.

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II. Introduction 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 (2X3) 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 2014.

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 groundwater gradients based upon current site conditions.

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

3. Establish an on-site groundwater 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.

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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 groundwater 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 groundwater 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 groundwater sample results and a description of any significant on-site leaks/spills into groundwater for each calendar year in the Annual Radiological Environmental Operating Report (AREOR) for REMP or the Annual Radioactive Effluent Release Report (ARERR).

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 the Nuclear Energy Institute (NEI).

B. Implementation of the Objectives The objectives identified have been implemented at PBAPS 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-408-4160, 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 PreciDitation 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 (Li-7) and/or boron-10 (B-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 Environmental Inc. Midwest Laboratories (EIML) to analyze the environmental samples for radioactivity for the PBAPS RGPP in 2014.

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

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

2. Concentrations of strontium in groundwater.

3. Concentrations of tritium in groundwater, surface water and precipitation water.

4. Concentrations of '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 PBAPS becoming operational were used as a baseline with which these operational data were compared. For the purpose of this report, PBAPS 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.

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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-1 34, Cs-1 37, Ba-140 and La-140 are measured.

C. Background Analysis A 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 PBAPS, Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, September 1970- August 1973, January 1974 and PBAPS, 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)(1).

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 up to and including 2006. Based on GNIP data for sample 8

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 8,560 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-1.1, Appendix B).

Strontium Sr-89 and Sr-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 2014. Gross Alpha (dissolved) was detected in 6 of 25 groundwater locations analyzed. The concentrations ranged from 1.3 to 13.3 pCi/L. Gross Alpha (suspended) was detected in 5 of 25 groundwater locations analyzed. The concentrations ranged from 1.0 to 4.8 pCi/L. Gross Beta (dissolved) was detected in 23 of 25 groundwater locations analyzed. The concentrations ranged from 1.2 to 16.6 pCi/L. Gross Beta (suspended) was detected in 8 of 25 groundwater locations analyzed. The concentrations ranged from 1.4 to 18.9 pCi/L. The activity detected is consistent with historical levels. The activity detected is naturally occurring and the levels are considered to be background (Table B-1.1, Appendix B).

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 iron-55 (Fe-55),

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nickel-63 (Ni-63), americium-241 (Am-241), curium-242 (Cm-242),

Cm-243/244, plutonium-238 (Pu-238), Pu-239/240, uranium-234 (U-234), U-235 and U-238. U-234 was detected in 8 of 24 groundwater monitoring locations analyzed. The concentrations ranged from 0.45 to 7.65 pCi/L. U-235 was detected at one groundwater monitoring location at a concentration of 0.70 pCi/L.

U-238 was detected in 8 of 24 groundwater monitoring locations analyzed. The concentrations ranged from 0.18 to 6.27 pCi/L. No plant produced radionuclides were detected.

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-II.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).

C. Precipitation Water Results Precipitation Water Samples were collected at six locations (1A, 1B, 1S, 1SSE, 1Z, and 4M). The following analysis was performed:

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

D. Drinking Water Well Survey A drinking water well survey was conducted during the summer 2006 by CRA (CRA 2006)(1) around the PBAPS. The water well inventory was updated in 2012(4). 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 2014.

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 5 times during 2014. On all occasions, MW-PB-25 samples had the highest tritium activity.

All wells exhibited decreasing or steady trends during 2014.

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-12, north of the 12

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 were installed to determine if a condition existed 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 quarterly in 2014. Tritium activity in the wells ranged from less than the MDC to 492 +/- 141 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. Groundwater intrusion into a ventilation pit on the east side of the area was identified. The groundwater was removed and degraded seams in the ventilation pit were successfully repaired. 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. These wells were sampled on a quarterly frequency. Below are 2 tables. The first lists the highest tritium activity of the wells of primary 13

interest and the date of the sampling. The second table lists the tritium activity of the wells from the last sampling of 2014. 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-4 271 12/03/2014 MW-PB-24 <193 12/03/2014 MW-PB-25 8,560 12/03/2014 MW-PB-26 <193 12/03/2014 MW-PB-27 605 12/03/2014 Potential sources of tritium in the groundwater were investigated via procedural processes and documented in the corrective action program.

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 There were no compensatory actions in 2014.

2. Installation of Monitoring Wells No groundwater monitoring wells were installed in 2014.

3. Actions to Recover/Reverse Plumes There were no actions to recover the plume.

J. Deviations The data tables show that duplicate samples were obtained at several 14

wells during 2014. These duplicate samples were obtained and analyzed for quality control purposes.

There are no additional deviations to report.

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, RGPP Summary Monitoring Report, March 2014, June 2014, October 2014.

15

APPENDIX A SAMPLING LOCATIONS, DISTANCE AND DIRECTION

TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations, Distance and Direction, Peach Bottom Atomic Power Station, 2014 Site Site Type Sector vistance (TI.)

Sector Distance (ft.)

MW-PB-1 Groundwater Well SW 1,166.6 MW-PB-2 Groundwater Well WNW 309.0 MW-PB-3 Groundwater Well SSE 709.7 MW-PB-4 Groundwater Well ENE 350.2 MW-PB-5 Groundwater Well NNW 1,146.1 MW-PB-6 Groundwater Well NE 1,072.4 MW-PB-7 Groundwater Well SE 813.9 MW-PB-8 Groundwater Well SE 1,167.0 MW-PB-9 Groundwater Well SE 2,816.9 MW-PB-10 Groundwater Well SSE 1,125.1 MW-PB-i1 Groundwater Well SE 438.4 MW-PB- 12 Groundwater Well NNE 317.2 MW-PB-13 Groundwater Well NW 329.4 MW-PB-1 4 Groundwater Well S 1,231.2 MW-PB-1 5 Groundwater Well SE 1,087.9 MW-PB-16 Groundwater Well SE 1,101.6 MW-PB-1 7 Groundwater Well SE 1,005.4 MW-PB-18 Groundwater Well SE 1,010.0 MW-PB-19 Groundwater Well NW 226.8 MW-PB-20 Groundwater Well E 260.5 MW-PB-21 Groundwater Well E 363.3 MW-PB-22 Groundwater Well NE 315.4 MW-PB-24 Groundwater Well N 185.9 MW-PB-25 Groundwater Well N 159.7 MW-PB-26 Groundwater Well NNE 121.1 MW-PB-27 Groundwater Well NNE 139.1 MW-PB-28 Groundwater Well NW 249.6 MW-PB-29 Groundwater Well SE 325.0 MW-PB-30 Groundwater Well SE 379.2 MW-PB-31 Groundwater Well SE 450.1 SW-PB-1 Surface Water NNW 2,850.5 SW-PB-5 Surface Water SE 675.1 SW-PB-6 Surface Water SE 1,305.9 SP-PB-1 Groundwater Seep S 514.2 SP-PB-2 Groundwater Seep WNW 311.6 SP-PB-3 Groundwater Seep NNW 1,281.1 Groundwater SSE 498.7 U/2 YARD DRAIN SUMP Groundwater WSW 175.8 U/3 YARD DRAIN SUMP 1A Precipitation Water ESE 1,271 IB Precipitation Water NW 2,587 15 Precipitation Water S 1,315 I SSE Precipitation Water SSE 1,312 1z Precipitation Water SE 1,763 4M Precipitation Water SE 45,989 A-1

1-MILE RADIUS Nt 4ohrason WSanbd 7.

J:. ~

A

• ~~~1~~

LEGEND PROPERTY BOUNDARY SOM"C US"S QUADRANGLE MAP&

ALL LOCATIONS APPROXIMATE MOLr^O0. PA - INS (NOT FIELD VERIFIED) WM(EPEL. VA.- 100 CEKiA. MD - tUE IDENTIFIED ON 2006 SEARCH. OONOWOO OawMD M-NOT IDENTIFIED ON 2012 SEARCH V.

ABANDONED EXELON SUPPLY WYELL (NON-POTABLE)

WATER WELL LOCATIONS PEACH BOTTOM ATOMIC POWER STATION EXELON GENERATION COMPANY, LLC Deaft, Penns.yvnl&

Figure A-1 Well Water Locations, Peach Bottom Atomic Power Station, 2014 A-2

"SW-PB-I 4E MN-PU SP-PB-3 IVN-PB-25 tvw-PB-13 #24 MN-PB-19 ,N VW-PB-12NV-B

?v-PA m rW-PB-27

~~vWM-PB-28 NP~ WIPM2&r-PBa L

LY3 YardDr*

SP-PB-2 MNPý2 W&-PB-i Y2 Yan1rd Dab4ýPX fl B-0 MNV.PB-31 PBW-PB-7 p

MMN-PB-MN-PB-i7 0 W/V.PB-18 MN-PB-1 IW/-PB-15 0 MN-PB-16 MN-PB-10 MN-PB-8

'SW-PB.6 MN-P%-14 NW-PB49 1000 0 IM Feet

1. RGPP Surface Water and GCkurwxter Swale Locations Figure A-2 RGPP Monitoring Locations, Peach Bottom Atomic Power Station, 2014 A-3

APPENDIX B DATA TABLES

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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

MW-PB-1 05/01/14 < 174 MW-PB-10 01/28/14 TBE < 181 MW-PB-10 01/28/14 TBE < 175 MW-PB-10 01/28/14 EIML < 152 MW-PB-10 04/30/14 < 173 < 5.6 < 0.5 < 3.1 2.9 +/- 1.0 7.8 +/- 1.5 3.4 +/- 1,2 MW-PB-10 07/31114 < 171 MW-PB-10 10/06/14 TBE < 188 MW-PB-10 10/06/14 TBE < 188 MW-PB-10 10/06/14 EIML < 157 MW-PB-1I 01/27/14 < 185 MW-PB-11 04/29/14 < 173 < 4.8 < 0.6 < 0.9 1.8 +/- 0.9 1.7 +/- 0.7 < 1.7 MW-PB-11 07/30/14 < 169 MW-PB-11 10/07/14 < 183 MW-PB-12 01/30/14 < 187 MW-PB-12 04/29/14 181 +/- 117 < 5.8 < 0.7 < 0.8 < 0.8 1.2 +/- 0.6 < 1.6 MW-PB-12 07/28/14 < 172 MW-PB-12 10107/14 < 186 MW-PB-13 01/27/14 < 177 MW-PB-1 3 04/28/14 < 175 < 6.0 < 0.6 13.3 +/- 8.5 < 1.5 15.6 +/- 4.0 < 3.0 MW-PB-13 07/30/14 TBE < 190 MW-PB-13 07/30/14 TBE < 172 MW-PB-13 07/30/14 EIML 147 + 71 MW-PB-13 10/07/14 < 185 MW-PB- 14 04/30/14 < 184 MW-PB-15 01/28/14 < 173 MW-PB-15 04130/14 < 180 < 6.6 < 0.5 < 1.4 < 0.8 9.3 +/- 1.2 < 1.6 MW-PB-15 07/31/14 < 188 MW-PB-15 10/06/14 < 186 MW-PB-16 01/28/14 <- 175 MW-PB-16 04/30/14 <:187 < 4.3 < 0.6 6.3 +/- 1.2 3.9 +/- 1.2 7.6 +/- 0.9 3.0 +/- 1.2 MW-PB-16 07/31/14 < 186 MW-PB-16 10/06114 < 175 MW-PB-19 01/30/14 < 190 MW-PB-19 04/28/14 < 184 < 5.6 < 0.7 < 0.8 < 0.8 2.6 +/- 0.7 < 1.6 MW-PB-19 07/28/14 < 192 MW-PB-19 10/07/14 TBE < 163 MW-PB-19 10/07/14 TBE < 183 MW-PB-19 10/07/14 EIML < 157 MW-PB-2 01/27/14 < 170 MW-PB-2 04/28/14 < 174 < 5.5 < 0.6 4.3 +/- 1.1 < 0.8 8.9 +/- 1.0 < 1.6 MW-PB-2 07/30/14 < 169 MW-PB-2 10/07114 < 185 MW-PB-20 01/27/14 < 163 MW-PB-20 04/29/14 < 187 < 5.5 < 0.7 < 4.8 < 0.4 9.5 +/- 1.7 < 1.3 MW-PB-20 07/28/14 < 190 MW-PB-20 10/07/14 < 184 MW-PB-21 01/31/14 < 187 MW-PB-21 04/29/14 < 185 < 1.7 < 0.7 < 1.5 < 0.4 7.7 +/- 1.2 < 1.3 MW-PB-21 07/28/14 227 +/- 127 MW-PB-21 10/08/14 < 188 MW-PB-22 01/30/14 487 +/- 144 MW-PB-22 04/29/14 669 +/- 152 < 5.0 < 0.7 < 1.1 < 0.5 2.8 +/- 0.8 2.7 +/- 1.1 MW-PB-22 07/28/14 854 +/- 165 MW-PB-22 10/08/14 833 +/- 160 MW-PB-24 01/30/14 <:171 MW-PB-24 04/29/14 Original 1350 +/- 196 < 4.3 < 0.7 < 1.2 < 0.4 2.4 +/- 0.8 < 1.3 MW-PB-24 04/29/14 Recount 1370 +/- 198 MW-PB-24 04/29/14 Reanalysis 1390 +/- 196 MW-PB-24 07/29/14 844 +/- 158 MW-PB-24 10/08/14 302 +/- 116 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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-B (Dis) Gr-B (Sus)

MW-PB-24 12/03/14 < 193 MW-PB-25 01/30/14 TBE 7380 +/- 775 MW-PB-25 01/30/14 TBE 6840 +/- 721 MW-PB-25 01/30/14 EIML 8203 +/- 271 MW-PB-25 04/29/14 6440 +/- 692 < 3.4 < 0.4 < 1.0 < 0.4 7.4 +/- 0.9 1.4 +/- 0.9 MW-PB-25 07/29/14 6220 +/- 663 MW-PB-25 10/08/14 5830 t 624 MW-PB-25 12/03/14 Original 8250 t 868 MW-PB-25 12/03/14 Recount 8560 t 899 MW-PB-25 12/03/14 Reanalysis 8540 +/- 895 MW-PB-26 01/30/14 295 t 127 MW-PB-26 04/29/14 332 1 136 < 3.3 < 0.4 2.6 +/- 0.9 < 0.4 3.9 +/- 0.8 2.1 +/- 1.0 MW-PB-26 07/29/14 258 +/- 127 MW-PB-26 10/08/14 224 t 110 MW-PB-26 12/03/14 < 193 MW-PB-27 01/30/14 Original 1180 +/- 171 MW-PB-27 01/30/14 Recount 1140 1 171 MW-PB-27 04/29/14 TBE 724 +/- 159 < 4.6 < 0.5 2.2 +/- 0.9 1.4 +/- 0.7 3.3 +/- 0.8 3.3 +/- 1.1 MW-PB-27 04/29/14 TBE 804 +/- 164 < 4.5 < 0.6 2.6 +/- 0.9 1.0 +/- 0.6 4.4 +/- 0.9 2.0 +/- 1.0 MW-PB-27 04/29/14 EIML 848 +/- 109 < 0.9 < 0.5 MW-PB-27 07/29/14 960 +/- 167 MW-PB-27 10/08/14 670 +/- 132 MW-PB-27 12/03/14 605 +/- 157 MW-PB-28 01/30/14 < 185 MW-PB-28 04/28/14 < 185 < 5.2 < 0.7 <C0.7 4.8 +/- 1.7 2.0 +/- 0.7 18.9 +/- 2.3 MW-PB-28 07/28/14 < 190 MW-PB-28 10/07/14 TBE < 159 MW-PB-28 10/07/14 TBE < 189 MW-PB-28 10/07/14 EIML < 157 MW-PB-29 01/27/14 < 186 MW-PB-29 04/28/14 < 187 < 5.1 < 0.6 < 0.6 < 0.4 2.5 +/- 0.7 < 1.3 MW-PB-29 07/29/14 TBE 224 +/- 127 MW-PB-29 07/29/14 TBE 238 +/- 129 MW-PB-29 07/29/14 EIML 277 +/- 77 MW-PB-29 10/07/14 284 +/- 130 MW-PB-3 01/27/14 < 172 MW-PB-3 04/28/14 < 177 < 5.9 < 0.6 1.3 +/- 0.8 < 0.8 < 1.1 < 1.6 MW-PB-3 07/30/14 < 169 MW-PB-3 10/07/14 < 185 MW-PB-30 01/27/14 459 +/- 140 MW-PB-30 04/28/14 Original 705 +/- 154 < 5.0 < 0.7 < 0.9 < 0.4 3.6 +/- 0.8 1.6 +/- 0.9 MW-PB-30 04/28/14 Recount 492 +/- 141 MW-PB-30 07/29114 < 179 MW-PB-30 10/07/14 264 +/- 114 MW-PB-31 01/27/14 < 157 MW-PB-31 04/28/14 < 183 < 5.6 < 0.7 < 0.9 < 0.4 1.6 +/- 0.8 < 1.3 MW-PB-31 07/28/14 < 179 MW-PB-31 10/07/14 233 +/- 111 MW-PB-4 01/31/14 TBE 457 +/- 137 MW-PB-4 01/31/14 TBE 425 +/- 135 MW-PB-4 01/31/14 EIML 436 +/- 100 MW-PB-4 04/29/14 276 +/- 136 < 4.3 < 0.6 < 5.3 < 0.8 12.3 +/- 1.9 < 1.6 MW-PB-4 07128114 338 +/- 132 MW-PB-4 10108114 305 +/- 115 MW-PB-4 12/03/14 271 +/- 138 MW-PB-5 04/30/14 < 178 MW-PB-6 04/30/14 < 177 MW-PB-7 01/28/14 < 175 MW-PB-7 05/01/14 TBE < 186 < 4.9 < 0.6 < 1.8 < 0.4 6.8 +/- 1.5 < 1.3 MW-PB-7 05/01/14 TBE < 174 < 5.0 < 0.7 < 2.5 < 0.8 6.0 +/- 1.4 < 1.6 B-2

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, 2014 RESULTS IN UNITS OF PCI/LITER 12 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis) Gr-A (Sus) Gr-8 (Dis) Gr-B (Sus)

Sr-89 MW-PB-7 05/01/14 EIML < 146 < 1.1 < 0.6 MW-PB-7 07/31114 < 167 MW-PB-7 10/06/14 TBE < 183 MW-PB-7 10/06/14 TBE < 186 MW-PB-7 10/06/14 EIML < 157 MW-PB-8 01128114 < 174 MW-PB-8 04/30114 < 176 < 4.5 < 0.6 < 2.0 < 0.8 16.6 +/- 1.7 < 1.6 MW-PB-8 07/31/14 < 165 MW-PB-8 10/06/14 < 185 SP-PB-1 03/20114 < 169 SP-PB-1 04/29/14 < 169 SP-PB-1 07/30114 < 185 SP-PB-1 12/03/14 < 195 SP-PB-2 01/30/14 < 186 SP-PB-2 04/29/14 < 183 SP-PB-2 07/30/14 < 190 SP-PB-2 10/07114 < 185 SP-PB-3 01/27/14 < 184 SP-PB-3 05/01/14 < 188 SP-PB-3 07/29/14 < 187 SP-PB-3 12/03/14 < 198 U/2 YARD DRAIN 01/29114 < 174 U/2 YARD DRAIN 05107/14 < 185 < 5.3 < 0.5 < 0.9 < 1.4 212 +/- 1.2 < 2.5 U/2 YARD DRAIN 09/05/14 < 157 U/2 YARD DRAIN 12/18/14 < 152 U/3 YARD DRAIN 01/30114 < 183 U/3 YARD DRAIN 05/07/14 < 186 < 7.6 < 0.6 < 0.8 < 1.4 < 1.7 <2.5 U/3 YARD DRAIN 09/05/14 < 158 U/3 YARD DRAIN 12/04/14 < 186 B-3

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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 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 05/01/14 < 5 <5 <8 <4 <7 <6 <8

• 10 <5 <5 < 22 <7 MW-PB-10 04/30/14 < 8 <6 <15 <8 <15 <9 <13 < 14 <6 <7

• 32 *12 MW-PB-11 04/29/14 < 6 <7 <12 <4 <13 <7 < 10 <13 <7 < 7

• 30 *10 MW-PB-12 04/29/14 < 5 <5 <11 <5 <10 <5 <8 <11 <5 <5 < 23 <9 MW-PB-13 04/28114 < 5 <6 < 12 <5 <11 <7 <9 <13 <5 <6

• 29 <8 MW-PB-14 04/30/14 < 6 <6 <11 <6 <11 <7 <12 < 11 <5 <5

• 29 <10 MW-PB-15 01/28/14 < 3 <3 <7 <4 <6 <3 <6

• 10 <3 <3

• 22 <7 MW-PB-15 04/30/14 < 6 <7 < 12 <7 <13 <8 <11

• 14 <7 <7

• 40

• 12 MW-PB-15 07/31/14 < 4 <4 <9 <5

• 10 <5 <9

• 12 <5 <5

• 26 *10 MW-PB-15 10/06114 < 3 <3 <8 <3 <7 <4 <6 <13 <3 <3

• 22 <7 MW-PB-16 01/28/14 < 2 <2 <6 <2 <5 <3 <5 <8 <2 <3 *18 <6 MW-PB-16 04/30/14 < 7 <7 <15 <7 <15 <8 <12 < 15 <7 <8

• 32 < 12 MW-PB-16 07/31/14 < 6 <6 <15 <6 <11 <6 <9

• 15 <5 <6 < 34 <11 MW-PB-16 10/06/14 <4 <4 <9 <3 <8 <4 <7

• 14 <3 < 4

• 29 <9 MW-PB-19 04/28/14 < 6 <7 <14 <6

• 16 <8 <13

• 15 <7 <7 < 37

• 12 MW-PB-2 04/28/14 < 5 <6 <11 <5 < 10 <6 <9

• 12 <5 <6

• 29 <10 MW-PB-20 04/29/14 < 4 <6 <13 <4 *10 <5 <9

• 12 <6 <5

• 27 <11 MW-PB-21 04/29/14 < 4 <5 <9 <6

• 12 <7 <11

• 14 <6 <6

• 32

• 14 MW-PB-22 04/29/14 < 7 <7 <12 <7 <15 <7 <10 <14 <6 <7 < 39

• 10 MW-PB-24 04/29/14 < 4 <5 <9 <4 <9 <5 <6 <9 <4 <4

• 24 <6 MW-PB-24 10/08/14 < 4 <5 <11 <5 <9 <5 <8 < 13 <4 <5

• 32 <9 MW-PB-25 04/29/14 < 5 <4 <10 <4 <8 <5 <8 <11 <5 <5

• 29 <8 MW-PB-25 10/08/14 < 5 <5

• 10 <4 <8 <5 <9

• 14 <5 <5 < 33 <11 MW-PB-26 04/29/14 < 4 <4 <9 <7 <9 <6 <9

• 10 <5 <4

• 25 <8 MW-PB-26 10/08114 <4 <4 <9 <4 <8 <4 <7 <13 <4 <4

• 28 <8 MW-PB-27 04/29114 TBE < 5 <4 <9 <4 <9 <6 <8 <12 <5 <4

• 28 <8 MW-PB-27 04/29/14 TBE < 6 <7 < 15 <8 < 14 <7 < 12

• 15 <6 <7 < 35 <8 MW-PB-27 04/29/14 EIML < 3 <3 <6 <3 <8 <6 <6 <8 <4 <4

• 32 <3 MW-PB-27 10/08/14 < 3 <3 <7 <4 <7 <4 <6 <10 <3 <3

• 21 <7 MW-PB-28 04/28/14 < 5 <6

• 14 <6 <11 <7 < 10

• 12 <6 <6 < 34 <11 MW-PB-29 04/28/14 < 6 <6 *12 <6 <11 <5 < 11

• 10 <4 <5

• 27 <8 MW-PB-3 04/28114 < 4 <5 <9 <6 <9 <6 <9 <11 <4 <6

• 28 <11 MW-PB-30 04/28/14 < 6 <7

• 14 <6 <14 <7 < 12

• 14 <8 <6

• 38 <11 MW-PB-31 04/28/14 < 5 <7 *13 <7 <12 <7 <11

• 14 <5 <5

• 38 *13 MW-PB-4 04/29/14 < 6 <6

• 12 <6 *13 <5 <10

• 13 <6 <6 < 26 < 10 MW-PB-4 10/08/14 <4 <5 <10 <4 <9 <5 <8

• 14 <4 <4

• 32 < 10 MW-PB-5 04/30/14 < 5 <5 <9 <4 <9 <5 <8 <9 <4 <4

• 22 <6 MW-P B-6 04/30/14 < 5 <4 *10 <3 <8 <6 <8

• 10 <5 <5 < 23 <8 MW-PB-7 05101/14 TBE < 7 <7

• 14 <6 <11 <7 < 13

• 14 <7 <7 < 39 <9 MW-PB-7 05/01114 "BE < 5 <4 <10 <6 < 10 <5 <10 <9 <4 <6

• 23 <7 MW-PB-7 05/01/14 EIML < 2 <2 <3 <2 <4 <3 <4 <5 <3 <2

• 14 <3

TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER AND SEEP WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 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-8 01/28/14 <3 <4 <7 <3 <6 <3 <6 <10 <3 <3

• 21 <7 MW-PB-8 04/30/14 <6 <6 < 13 <7 <12 <7 <10 <14 <6 <6

• 38 <11 MW-PB-8 07/31/14 <6 <6 <11 <7 <9 <6 <9 <14 <6 <6

• 29 < 13 MW-PB-8 10/06/14 <3 <4 <8 <3 <7 <4 <7 <14 <3 <4

• 30 <7 SP-PB-1 04/29/14 <4 <5 <12 <8 <8 <6 <9 <13 <5 <5

• 29 <9 SP-PB-2 04/29/14 <5 <4 <10 <6 <10 <5 <9 <13 <4 <6

• 27 <7 SP-PB-3 05/01/14 <5 <5 <10 <6 <11 <6 <11 <11 <5 <6

• 26 <7 U/2 YARD DRAIN 05/07/14 <1 <1 <3 <1 <2 <2 <2 <10 <1 <1 <16 <5 U/3 YARD DRAIN 05/07114 <1 <1 <3 <1 <2 <2 <2 <12 <1 <1

• 18 <5

TABLE B-I.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Am-241 Cm-242 Cm-243/244 Pu-238 Pu-239/240 U-234 U-235 U-238 Fe-55 Ni-63 DATE MW-PB-10 04/30114 < 0.06 < 0.05 < 0.05 < 0.02 < 0.12 < 0.02 < 0.10 < 0.13 MW-PB-11 04/29/14 < 0.15 < 0.14 < 0.05 < 0.09 < 0.11 < 0.04 < 0.02 < 0.04 MW-PB-12 04/29/14 < 0.04 < 0.10 < 0.06 < 0.14 < 0.08 < 0.02 < 0.02 < 0.05 MW-PB-13 04/28/14 < 0.15 < 0.09 < 0.07 < 0.15 < 0.10 7.65 +/- 1.45 0.70 +/- 0.27 < 6.27 +/- 1.22 0.05 MW-PB-15 04/30114 < 0.04

• 0.04 < 0.02 < 0.14 < 0.07 < 0.04 < 0.05 MW-PB-16 04/30114 < 0.15 < 0.04 < 0.02 < 0.17 < 0.13 < 0.06 < 0.04 < 0.09 MW-PB-19 04/28/14 < 0.11 < 0.05 < 0.19 < 0.09 < 0.11 < 0.04 < 0.05 < 0.02 MW-PB-2 04/28/14 < 0.02 < 0.06 < 0.02 < 0.02 < 0.09 4.36 +/- 0.57 < 0.02 2.41 +/- 0.40 MW-PB-20 04/29/14 < 0.09 < 0.04 < 0.02 < 0.13 < 0.11 < 0.13 < 0.05 < 0.07 MW-PB-21 04/29/14 < 0.10 < 0.12 < 0.04 < 0.10 < 0.08 < 0.02 < 0.05 < 0.08 MW-PB-22 04/29/14 < 0.11 < 0.03 < 0.07 < 0.02 < 0.06 < 0.10 < 0.11 < 0.10 MW-PB-24 04/29/14 < 0.14 < 0.02 < 0.04 < 0.08 < 0.09 < 0.02 < 0.03 < 0.04

• 82 < 3.8 MW-PB-25 04/29/14 < 0.05 < 0.03 < 0.05 < 0.03 < 0.06 3.51 +/- 0.82 < 0.08 1.39 +/- 0.43

• 115 < 3.8 MW-PB-26 04/29/14 < 0.18 < 0.08 < 0.08 < 0.07 < 0.11 5.77 +/- 1.24 < 0.11 2.18 +/- 0.59 < 79 < 3.8 MW-PB-27 04/29114 TBE < 0.03 < 0.09 < 0.06 < 0.12 < 0.06 6.41 +/- 1.45 < 0.15 2.57 +/- 0.73

• 159 < 3.8 MW-PB-27 04/29/14 TBE < 0.09 < 0.02 < 0.09 < 0.02 < 0.07 4.92 +/- 0.65 < 0.07 1.98 +/- 0.38

• 131 < 3.8 MW-PB-27 04/29114 EIML < 0.10 < 0.37 < 0.25 < 0.10 5.93 +/- 0.53 2.15 +/- 0.32 < 754 < 125 MW-PB-28 04/28/14 < 0.14 < 0.04 < 0.08 < 0.07 < 0.09 0.45 +/- 0.16 < 0.05 0.18 +/- 0.11 MW-PB-29 04/28/14 < 0.09 < 0.03 < 0.07 < 0.04 < 0.06 < 0.11 < 0.03 < 0.10 MW-PB-3 04/28/14 < 0.07 < 0.05 < 0.02 < 0.11 < 0.08 1.24 +/- 0.29 < 0.07 0.80 +/- 0.23 MW-PB-30 04/28/14 < 0.13 < 0.04 < 0.09 < 0.06 < 0.11 < 0.11 < 0.06 < 0.12 MW-PB-4 04/29/14 < 0.06 < 0.06 < 0.06 < 0.09 < 0.07 < 0.05 < 0.12 < 0.08

• 147 < 4.2 MW-PB-7 05/01/14 TBE < 0.12 < 0.02 < 0.05 < 0.14 < 0.16 < 0.14 < 0.18 < 0.14 MW-PB-7 05/01/14 TBE < 0.04 < 0.07

• 0.04 < 0.14 < 0.11 < 0.02 < 0.07 < 0.06 MW-PB-7 05/01/14 EIML < 0.14 < 0.29 < 0.13 < 0.22 0.45 +/- 0.14 0.24 +/- 0.10

• 758 < 122 MW-PB-8 04/30/14 < 0.08 < 0.08 < 0.05 < 0.11 < 0.09 < 0.04 < 0.03 < 0.07 U/2 YARD DRAIN 05/07/14 < 0.10 < 0.08 < 0.06 < 0.09 < 0.05 < 0.02 < 0.05 < 0.04 U/3 YARD DRAIN 05/07/14 < 0.10 < 0.02 < 0.05 < 0.02 < 0.08 < 0.07 < 0.07 < 0.08

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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 U

Sw-PB-1 01/31/14 7 188 SW-PB-1 04/28/14 TB E < 190 SW-PB-1 04/28/14 TB E < 185 SW-PB-1 04/28/14 EIl* AL < 146 SW-PB-1 07/30/14 < 190 SW-PB-i 10106/14 < 183 SW-PB-5 01/30/14 < 188 SW-PB-5 04/28/14 < 189 SW-PB-5 07/31/14 TB E < 193 SW-PB-5 07/31/14 TB E < 189 SW-PB-5 07/31/14 ElI AL < 131 SW-PB-5 10/06/14 < 159 SW-PB-6 01/31/14 < 189 SW-PB-6 04/28/14 TB E < 187 SW-PB-6 04/28/14 TB E < 189 SW-PB-6 04/28/14 ElI AL < 146 SW-PB-6 07/31/14 < 189 SW-PB-6 10/06/14 < 163 B-7

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, 2014 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 DATE SW-PB-1 04/28/14 TBE < 5 < 5 < 12 <5 <12 <4 < 10 <10 <5 <5

• 26 <15 SW-PB-1 04/28/14 TBE < 4 < 4 < 10 <4 <9 <5 <7 <11 <4 <4 < 24 <7 SW-PB-i 04/28/14 EIML < 2 < 2 < 5 <2 <4 <3 <5 <5 <2 <3 *18 <3 SW-PB-5 04/28/14 < 5 < 6 < 10 <4 <8 <5 <9 <15 <4 <5

• 27 <9 SW-PB-6 04/28/14 TBE < 4 <4 < 11 <4 < 10 <5 <9 <12 <5 <5

• 29 <9 SW-PB-6 04/28/14 TBE < 6 < 5 < 14 <5 <11 <5 <10 < 13 <6 <6 < 37 <9 SW-PB-6 04/28/14 EIML < 3 <2 < 3 <1 <3 <2 <5 <5 <3 <2 < 10 <4

,0

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, 2014 RESULTS IN UNITS OF PCI/LITER + 2 SIGMA COLLECTION SITE DATE H-3 1A 01/01114 < 191 1A 01/30/14 < 176 1A 02/27/14 < 156 1A 03127/14 < 194 IA 05/01/14 < 176 1A 05/29/14 < 169 IA 06/26/14 < 156 1A 07/31/14 < 194 IA 08/28/14 < 182 1A 10/02/14 < 171 1A 10/30/14 < 154 1A 11/25/14 < 183 1B 01/01/14 < 192 1B 01/30/14 < 165 11 02/27/14 < 157 16 03/27/14 < 184 1B 05/01/14 < 177 1B 05/29/14 < 166 1B 06/26/14 < 155 1B 07/31/14 < 192 1B 08/28/14 < 185 1B 10/02/14 < 161 1B 10/30/14 < 191 1B 11125/14 < 184 iS 01/01/14 < 189 iS 03/27/14 < 188 iS 05/01/14 < 175 iS 05/29/14 < 197 is 06/26/14 < 177 iS 07/31/14 < 197 is 08/28/14 < 185 1s 10/02/14 < 161 iS 10/30/14 < 152 iS 11/25/14 < 178 1SSE 01/01/14 < 189 1SSE 01/30/14 < 164 1SSE 02/27/14 < 193 1SSE 03/27/14 < 181 ISSE 05/01/14 < 177 iSSE 05/29/14 < 194 1SSE 06/26/14 < 178 1SSE 07/31/14 < 192 ISSE 08/28/14 < 183 ISSE 10/02/14 < 163 iSSE 10/30/14 < 154 1SSE 11/25/14 < 183 1Z 01/01/14 < 186 1Z 01/30/14 < 166 1Z 02/27/14 < 158 1Z 03/27/14 < 186 1Z 05/01/14 < 178 1Z 05/29/14 < 195 1Z 06/26/14 < 180 1Z 07/31/14 < 197 1z 08/28/14 < 185 1Z 10/02/14 < 160 1Z 10/30/14 < 154 1Z 11/25/14 < 182 4M 01/01/14 < 197 B-9

TABLE B-Il1.1 CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2014 RESULTS IN UNITS OF PCI/LITER + 2 SIGMA COLLECTION SITE DATE H-3 4M U1/JU/14 < 15 4M 02/27/14 < 154 4M 03/27/14 < 186 4M 05/01/14 < 176 4M 05/29/14 < 166 4M 06/26/14 < 176 4M 07/31/14 < 195 4M 08/28/14 < 184 4M 10/02/14 < 162 4M 10/30/14 < 149 4M 11125/14 < 182 B-10