Text

2013 Radiological Environmental Monitoring Program Report
	ML14120A343
Person / Time
Site:	Three Mile Island
Issue date:	04/25/2014
From:	Newcomer M; Exelon Generation Co
To:	; Document Control Desk, NRC/FSME, Office of Nuclear Reactor Regulation
References
	TMI-14-051
	Download: ML14120A343 (189)
	v • d • e

Three Mile Island Unit 1 A Exeton Generation Route 441 South P.O. Box 480 Middletown, PA 17057 717-948-8000 Office www.exeloncorp.com April 25, 2014 TMI-14-051 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 THREE MILE ISLAND NUCLEAR STATION UNIT 1 AND UNIT 2 RENEWED OPERATING LICENSE NO. DPR-50 AND POSSESSION ONLY LICENSE NO. DPR 73 DOCKET NOS. 50-289 AND 50-320

SUBJECT:

2013 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM REPORT In accordance with TMI Technical Specification 6.9.3.1, TMI-2 Technical Specifications 6.8.1.1, enclosed is the Annual Radiological Environmental Operating Report covering the time period of January 1 through December 31, 2013, for the Three Mile Island Nuclear Station.

Please contact Laura Weber of TMI-Chemistry at (717) 948-8947 if you have questions regarding this submittal.

Sincerely, Ma.*M.ewcomer Plant Manager MMN/LKW/dam Attachments/Enclosures cc: Region 1 Administrator TMI Senior Resident Inspector TMI-1 Senior Project Manager TMI-2 Project Manager GPU Nuclear Cognizant Officer Department of Environmental Protection, Bureau of Radiation Protection FfYL1~~

Docket No: 50-289 50-320 THREE MILE ISLAND NUCLEAR STATION UNITS 1 and 2 Annual Radiological Environmental Operating Report 1 January Through 31 December 2013 Prepared By Teledyne Brown Engineering Environmental Services SExeton Generation, Three Mile Island Nuclear Station Middletown, PA 17057 April 2014

Intentionally left blank Table Of Contents I. Sum m ary and Conclusions .......................................................................................... 1 I1. Introduction ............................................................................................................. 3 A. O bjectives of the REM P .................................................................................. 3 B. Im plem entation of the O bjectives .................................................................. 4 III. 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 ......................................................................................... 11 A. Aquatic Environm ent ..................................................................................... 11

1. Surface W ater ..................................................................................... 11

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

3. Effl uent W ater ..................................................................................... 13

4. Storm W ater ....................................................................................... 14

5. G round Water ..................................................................................... 14

6. Fish ..................................................................................................... 14

7. Sedim ent ............................................................................................ 15 B. Atm ospheric Environm ent ........................................................................... 15

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

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

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

2. Terrestrial ............................................................................................ 16

a. Milk .......................................................................................... 16

b. Food Products ........................................................................ 17 C. Am bient G am m a Radiation ........................................................................... 18 D. Land Use Survey .......................................................................................... 18 E. Radiological Im pact of TM INS O perations .................................................... 19 F. Errata Data .................................................................................................. 27 G. Summary of Results - Inter-laboratory Comparison Program .................... 27 V. References ................................................................................................................... 30

Appendices Appendix A Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for the Three Mile Island Nuclear Station, 2013 Appendix B Location Designation, Distance & Direction And Sample Collection &

Analytical Methods Tables Table B-1 Location Designation and Identification System for the Three Mile Island Nuclear Station Table B-2 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Three Mile Island Nuclear Station, 2013 Table B-3 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Three Mile Island Nuclear Station, 2013 Figqures Figure B-1 Environmental Sampling Locations Within One Mile of the Three Mile Island Nuclear Station, 2013 Figure B-2 Environmental Sampling Locations Between One and Five Miles from the Three Mile Island Nuclear Station, 2013 Figure B-3 Environmental Sampling Locations Greater Than Five Miles from the Three Mile Island Nuclear Station, 2013 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 Three Mile Island Nuclear Station, 2013.

Table C-1.2 Concentrations of 1-131 in Surface Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-1.3 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

ii

Table C-11.1 Concentrations of Gross Beta in Drinking Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-II.2 Concentrations of 1-131 in Drinking Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-11.3 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-11.4 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-I11.1 Concentrations of Gross Beta, 1-131, Tritium, and Strontium in Effluent Water Samples for Station K1-1 Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-111.2 Concentrations of Gamma Emitters in Effluent Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-IV.1 Concentrations of Strontium in Predator and Bottom Feeder (Fish)

Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-IV.2 Concentrations of Gamma Emitters in Predator and Bottom Feeder (Fish) Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-V.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-VI.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-VI.2 Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3 pCi/cu meter) in Air Particulate Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-VI.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-VII.1 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-VIII.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-VIII.2 Concentrations of Strontium in Milk Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-VIII.3 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table C-IX.1 Concentrations of Strontium and Gamma Emitters in Food Product Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

iii

Table C-X.1 Quarterly OSLD Results for Three Mile Island Nuclear Station, 2013.

Table C-X.2 Mean Quarterly OSLD Results for the Site Boundary, Indicator and Control Locations for Three Mile Island Nuclear Station, 2013.

Table C-X.3 Summary of the Ambient Dosimetry Program for Three Mile Island Nuclear Station, 2013.

Figures Monthly Tritium Concentrations in Surface Water and Effluent Water Figure C-1 Three Mile Island Nuclear Station, 2013.

Figure C-2 Mean Quarterly Tritium Concentrations in Surface Water Three Mile Island Nuclear Station, 1974- 2013.

Figure C-3 Mean Monthly Gross Beta Concentrations in Drinking Water Three Mile Island Nuclear Station, 2013.

Figure C-4 Mean Monthly Tritium Concentrations in Drinking Water and Effluent Water Three Mile Island Nuclear Station, 2013.

Figure C-5 Mean Cesium-1 37 Concentrations in Aquatic Sediments Three Mile Island Nuclear Station, 1984 - 2013.

Figure C-6 Mean Quarterly Gross Beta Concentrations in Air Particulates Three Mile Island Nuclear Station, 1972 - 2013.

Figure C-7 Mean Weekly Gross Beta Concentrations in Air Particulates Three Mile Island Nuclear Station, 2007 - 2013.

Figure C-8 Mean Quarterly Strontium-90 Concentrations in Cow Milk Three Mile Island Nuclear Station, 1979 - 2013.

Appendix D Data Tables and Figures - Comparison Laboratory Tables Table D-1.1 Concentrations of Gross Beta in Drinking Water Samples Collected in the Vicinity Of Three Mile Island Nuclear Station, 2013.

Table D-1.2 Concentration of Tritium in Drinking Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table D-1.3 Concentrations of lodine-131 in Drinking Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table D-1.4 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table D-11.1 Concentrations of Strontium and Gamma Emitters in Fish Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

iv

Table D-111.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table D-IV.1 Concentrations of Gamma Emitters and Strontium in Food Product Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table D-V.1 Concentrations of Gross Beta in Air Particulate and 1-131 in Air Iodine Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table D-V.2 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table D-VI.1 Concentrations of 1-131 by Chemical Separation, Gamma Emitters, and Strontium in Milk Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Figures Figure D-1 Monthly Gross Beta Concentrations in Drinking Water Samples Collected From TMINS Location Q9-1Q, 2013.

Figure D-2 Weekly Gross Beta Concentrations in Air Particulate Samples Collected from TMINS Location E1-2Q, 2013.

Appendix E Inter-Laboratory Comparison Program Tables Table E-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2013 Table E-2 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2013 Table E-3 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2013 Table E-4 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2013 Table E-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2013 Appendix F Errata Data Appendix G Annual Radiological Groundwater Protection Program Report (ARGPPR) v

Intentionally Left Blank vi

1. Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for the Three Mile Island Nuclear Station (TMINS) by Exelon covers the period 1 January 2013 through 31 December 2013. During that time period, 1,703 analyses were performed on 1,307 samples. In assessing all the data gathered for this report and comparing these results with preoperational data and operational REMP data, it was concluded that the operation of TMINS had no adverse radiological impact on the environment.

Surface, drinking and effluent water samples were analyzed for concentrations of tritium and gamma emitting nuclides. Surface, drinking and effluent water samples were also analyzed for concentrations of 1-131. Drinking and effluent water samples were also analyzed for concentrations of gross beta. Effluent water samples were also analyzed for concentrations of Sr-89 and Sr-90. All groundwater, precipitation water and storm water results are now being reported in the ARGPPR, Appendix G. No Sr-89 and Sr-90 activities were detected.

Iodine-1 31 and gross beta concentrations detected were consistent with those detected in previous years. Tritium activity in ten surface water samples and monthly effluent water samples was due to TMINS activities or releases. No other fission or activation products potentially attributed to TMI liquid releases were detected.

Fish (predator and bottom feeder) and sediment samples were analyzed for concentrations of gamma emitting nuclides. Fish samples were also analyzed for concentrations of Sr-90. No Sr-90 activity was detected. No fission or activation products were detected in fish samples. Cesium-137 was detected in one sediment sample. Occasionally Cs-1 37 is detected at very low levels (just above LLD) and is not distinguishable from background levels.

Air particulate samples were analyzed for concentrations of gross beta and gamma emitting nuclides. Gross beta activity is consistent with data from previous years. Cosmogenic Be-7 was detected at levels consistent with those detected in previous years. No other activation products were detected.

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

Cow milk samples were analyzed for concentrations of 1-131, gamma emitting nuclides, Sr-89 and Sr-90. No 1-131, Sr-89, Sr-90 activities were detected.

Concentrations of naturally occurring K-40 were consistent with those detected in previous years. Occasionally Sr-90 activities are detected and are consistent with those detected in previous years and were attributed to fallout from nuclear weapons testing. No other fission or activation products were found.

Food Product samples were analyzed for concentrations of gamma emitting nuclides (including 1-131) and Sr-90. Strontium-90 activity was detected in both the indicator and control samples. This was a result of plant uptake of Sr-90 in soil as a result of past nuclear weapons testing. Concentrations of naturally occurring Be-7 and K-40 were consistent with those detected in previous years.

No other fission or activation products were detected.

Beginning in 2012, Exelon changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimetry (OSLD) were deployed and Thermo-luminescent Dosimetry (TLD) were discontinued. This change resulted in a slight change in process and reporting of quarterly results. 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).

In conclusion, radioactive materials related to TMINS operations were detected in environmental samples, but the measured concentrations were low and consistent with measured effluents. The environmental sample results verified that the doses received by the public from TMINS effluents in 2013 were well below applicable dose limits and only a small fraction of the doses received from natural background radiation. Additionally, the results indicated that there was no permanent buildup of radioactive materials in the environment and no increase in background radiation levels.

Therefore, based on the results of the radiological environmental monitoring program (REMP) and the doses calculated from measured effluents, TMINS operations in 2013 did not have any adverse effects on the health of the public or on the environment.

IH. Introduction The Three Mile Island Nuclear Station (TMINS), consisting of two pressurized water reactors (PWR), is located on the northern end of Three Mile Island in the Susquehanna River approximately 2.5 miles south of Middletown in Londonderry Township, Dauphin County, Pennsylvania. TMI-1 is owned and operated by Exelon and became operational in 1974. TMI-2 is operated by GPU Nuclear, Inc. and owned by Metropolitan Edison (50%), Pennsylvania Electric (25%) and Jersey Central Power & Light (25%). TMI-2 became operational in 1978 and was shut down following the 1979 accident. At the end of 1993 TMI-2 was placed in a condition called Post-Defueling Monitored Storage. TMI-2 is maintained by Exelon under contract with GPU Nuclear.

A Radiological Environmental Monitoring Program (REMP) for TMINS was initiated in 1974. This report covers those analyses performed by Teledyne Brown Engineering (TBE), Landauer and Environmental Inc. (Midwest Labs) on samples collected during the period 1 January 2013 through 31 December 2013.

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

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

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

3. To verify inplant controls for the containment of radioactive materials.

4. To determine buildup of long-lived radionuclides in the environment and changes in background radiation levels.

5. To provide reassurance to the public that the program is capable of adequately assessing impacts and identifying noteworthy changes in the radiological status of the environment.

6. To fulfill the requirements of the TMI-1 and TMI-2 Technical Specifications.

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

1. Identifying significant exposure pathways.

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

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

Ill. Program Description A. Sample Collection Samples for the TMINS REMP were collected for Exelon by Normandeau Associates, RMC Environmental Services Division (RMC). This section describes the general collection methods used by RMC to obtain environmental samples for the TMINS REMP in 2013. Sample locations and descriptions can be found in Tables B-1 and B-2, and Figures B-1 through B-3, Appendix B. The collection procedures used by RMC are listed in Table B-3.

Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, drinking water, effluent water, fish and sediment. Two gallon water samples were collected monthly from continuous samplers located at three surface water locations (A3-2, J1-2 and Q9-1), three drinking water locations (G15-2, G15-3 and Q9-1), and one effluent water location (K1 -1). Control locations were A3-2 and Q9-1.

All groundwater and storm water results are now being reported in the ARGPPR, Appendix F. All water samples were collected in unused plastic bottles, which were rinsed at least twice with source water prior to collection. Fish samples comprising the flesh of two groups, bottom feeders and predators, were collected semiannually at an upstream control (BKG) and a downstream Indicator (IND) location. Location IND could be affected by TMINS' effluent releases. Sediment samples composed of recently deposited substrate were collected semiannually at three locations (A1-3, J2-1 and K1-3). In addition, one sediment sample was collected annually at the EDCB. Location A1-3 was the control.

AtmosDheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulates, airborne iodine, milk and food product. Airborne iodine and particulate samples were collected and analyzed weekly at seven locations (A3-1, E1-2, F1-3, G2-1, H3-1, M2-1 and Q15-1). The control location was Q15-1. Airborne iodine and particulate samples were obtained at each location, using a vacuum pump with charcoal and glass fiber filters attached. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.

Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on samples of milk and food product. Milk samples were collected biweekly at five locations (E2-2, F4-1, G2-1, K1 5-3 and P4-1) from March through November, and monthly from December through February. The control location was K15-3. 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 products were collected monthly at three locations (B1 0-2, El -2 and H1-2), in lieu of milk sampling and annually from the four food product groups at two locations (B10-2 and H1-2). B10-2 was the control location for both annual and monthly sampling. Five different kinds of vegetation samples and eleven different kinds of vegetation leaves were collected and placed in new unused plastic bags, and sent to the laboratory for analysis.

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

A site boundary ring consisting of 19 locations (A1-4, B1-2, C1-2, D1-1, E1-4, F1-2, F1-4, G1-3, G1-5, G1-6, H1-1, J1-3, K1-4, 1-1i, M1-1, N1-3, P1-2, Q1-2 and R1-1) 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 TMINS release.

An indicator ring consisting of 60 locations (A3-1, A5-1, A9-3, B1-1, B2-1, B5-1, B10-1, C1-1, C2-1, C5-1, C8-1, D1-2, D2-2, D6-1, E1-2, E2-3, E5-1, E7-1, F1-1, F2-1, F5-1, F10-1, G1-2, G2-4, G5-1, H3-1, H5-1, H8-1, J1-1, J3-1, J5-1, J7-1 K2-1, K3-1, K5-1, K8-1, L1-2, L2-1, 15-1, L8-1, M1-2, M2-1, M5-1, M9-1, N1-1, N2-1, N5-1, N8-1, P1-1, P2-1, P5-1, P8-1, Q1-1, Q2-1, Q5-1, Q9-1, R1-2, R3-1, R5-1 and R9-1) extending to approximately 10 miles from the site designed to measure possible exposures to close-in population.

The balance of 11 locations (D15-1, F25-1, G10-1, G15-1, H15-1, J15-1, K15-1, L15-1, N15-2, Q15-1 and R15-1) represent control areas.

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 sixteen-22 1/2 degree sectors around the site, where estimated annual dose from TMINS, if any, would be most significant;

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

4. And near the closest dwelling to the vents in the prevailing downwind direction.

Each station has two A120 3 :C Optically Stimulated Luminescence Dosimeters enclosed in plastic placed at each location in a frame located approximately three to six feet above ground level. Since each OSLD responds to radiation independently, this provides two independent detectors at each station.

B. Sample Analysis This section describes the general analytical methods used by TBE and Midwest Labs to analyze the environmental samples for radioactivity for the TMINS REMP in 2013. The analytical procedures used by the laboratories are listed in Table B-3.

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

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

2. Concentrations of gamma emitters in surface, drinking, and effluent water, air particulates, milk, fish, sediment and food products.

3. Concentrations of tritium in surface, drinking and effluent water.

4. Concentrations of 1-131 in surface, drinking and effluent water, air, milk and food products.

5. Concentrations of strontium in effluent water, fish, milk and food products.

6. Ambient gamma radiation levels at various site environs.

C. Data Interpretation Data were compared to previous years' operational data for consistency and trending. In addition, comparison to pre-operational data is sometimes made. For the purpose of this report, TMINS was considered operational at initial criticality. Several factors were important in the interpretation of the data:

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

The minimum detectable concentration (MDC) is defined above with the exception that the measurement is an after the fact estimate of the presence of activity.

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

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

For surface, drinking, and effluent water 11 nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, Cs-134, Cs-137, Ba-140 and La-140 were reported.

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

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

For air particulate eight nuclides, Be-7, Mn-54, Co-58, Co-60, Nb-95, Zn-95, Cs-1 34 and Cs-1 37 were reported.

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

For food products five nuclides, Be-7, K-40, 1-131, Cs-1 34 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 2013 the TMINS REMP had a sample recovery rate in excess of 99%.

Issue Reports (IR) were initiated to document significant exceptions and missing samples. All exceptions are listed below:

AIR Q15-1

1. For the following sampling periods, the breaker was found tripped.

There was a low volume but the samples were valid and sent for analyses. Breaker was reset and sampler operated normally.

(IR 488572) 01/31/13 - 02/07/13 02/27/13 - 03/07/13 03/14/13 - 03/21/13 A3-1

2. Numerous weekly samples impacted due to substation maintenance and power outages. Temporary power was supplied when available.

Lower than normal volumes occurred, but samples were valid and sent for analyses (IR 1499482). The following weeks were impacted:

03/28/13 - 04/04/13 04/17/13 - 04/25/13 04/25/13 - 05/02/13 05/02/13 - 05/09/13 05/16/13 - 05/23/13 05/23/13 - 05/30/13 Q1 5-1

3. For the following sampling periods, the breaker was found tripped.

There was insufficient or low volume. On 6/26/13 the sampler unit was replaced. Replacement sampler operated normally (IR 1523365/1534450).

04/25/13 - 05/02/13 - sufficient volume, sample was sent, breaker reset 05/30/13 - 06/06/13 - insufficient volume, sample not sent, breaker reset 06/13/13 - 06/20/13 - sufficient volume, sample was sent, breaker reset 06/20/13 - 06/26/13 - insufficient volume, sample not sent, sampler replaced H3-1

4. For the sampling period 05/30/13 - 06/06/13, the sampler was found not running with the breaker tripped. The pump and timer were not operating. The sample volume was insufficient. The samples were not valid and were not sent for analysis. The pump was replaced and breaker reset and the sampler was returned to service (IR 1523365).

E1-2Q

5. For the sampling period 07/04/13 - 07/11/13, the sample pump malfunctioned with the timer still running. The sample volume was insufficient. Per procedure, the samples were not valid and were not sent to the laboratory for analysis. The pump was replaced on 07/13/13 and the sampler was returned to service (IR 1538298).

G2-1

6. For the following sampling periods 09/25/13 - 10/02/13, the sampler was found not running with the breaker tripped. The sample volume was insufficient. The samples were not valid and were not sent to the laboratory for analysis. The pump was replaced on 10/09/13 and the sampler was returned to service. (IR 1574816) 09/25/13 - 10/02/13 - insufficient volume, sample not sent, breaker reset.

10/02/13 - 10/09/13 - insufficient volume, sample not sent, pump replaced.

WATER J1-2

1. Hourly composite samples were missed when the sample line into the Susquehanna became lifted or disconnected from its anchoring cinderblocks due to river conditions. The line was repositioned and reconnected to anchor and sampler verified operating during sample collection. At all times enough sample was collected for the weekly composite sample so no grab sampling was required. (IR 488572)

The impacted sampling periods were:

01/29/13 - 02/05/13 - sufficient volume, no grab sample required 02/05/13 - 02/12/13 - sufficient volume, no grab sample required Q9-1 Surface water

2. For the sampling period 03/26/13 - 04/02/13, the sampler was found unplugged. Plant personnel removed plug to use outlet and inadvertently did not replug. Power was re-established and 26 samples were missed. Sufficient volume was available so no grab sample was required. (IR 488572)

G15-2

3. For the sampling period 06/18/13 - 06/25/13, sampler pump error due to pump jammed/power loss. Unplugged sampler and reset. Sampler operated normally. Sufficient sample volume collected. No grab sample was required. (IR 488572)

G15-3

4. For the following sampling periods, hourly samples were missed when sampler was turned off by water treatment plant personnel due to maintenance and equipment problems with the sewage system (IR 488572).

07/15/13 - 07/23/13 - sufficient volume, no grab required.

07/23/13 - 07/30/13 - sufficient volume, no grab required.

07/30/13 - 08/07/13 - sufficient volume, no grab required.

08/07/13 - 08/13/13 - sufficient volume, no grab required.

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 recurrence. Occasional equipment breakdowns and power outages were unavoidable.

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

E. Program Changes No program changes for 2013.

IV. Results and Discussion A. Aquatic Environment

1. Surface Water Samples were taken weekly from a continuous sampler at two locations (J1-2 and Q9-1) and weekly grab samples from one location (A3-2). Weekly samples were composited on a monthly schedule. Of these locations only J1-2 located downstream could be affected by TMINS' effluent releases. The following analyses were performed:

Tritium Monthly samples from J1-2 and Q9-1 were analyzed for tritium activity (Table C-1.1, Appendix C). Positive tritium activity was detected in 10 of 12 samples at location J1-2 which is located immediately downstream of the TMINS effluent outfall. The concentrations ranged from 735 to 5,580 pCi/I. The increased tritium concentrations detected were a result of TMINS releasing radwaste treatment system effluent water under permitted discharges in accordance with NRC regulations. The indicator surface water sample is taken just downstream of the liquid discharge outfall where mixing of liquid effluents with the river water is incomplete. More complete mixing is not achieved until liquid effluents pass over the York Haven Dam. This water is normally not consumed by humans. The concentrations detected were well below any regulatory limits (Figures C-1 and C-2, Appendix C).

Iodine Monthly samples from location A3-2 were analyzed for 1-131 activity (Table C-1.2, Appendix C). This is a control or background station sampled because known medical discharges of radiopharmaceuticals occur into the surface water upstream of TMI from a nearby hospital. Iodine-131 from medical discharges was detected in one sample, at a concentration of 1.1 pCi/I.

Gamma Spectrometry Locations J1-2 and Q9-1 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 (G15-2, G15-3 and Q9-1). Two locations (G15-2 and G15-3) could be affected by TMINS' effluent releases. The following analyses were performed:

Gross Beta Monthly samples from all locations were analyzed for concentrations of gross beta (Tables C-11.1, Appendix C). Gross beta activity was detected in 24 of 36 samples. The concentrations ranged from 1.7 to 5.2 pCi/l. Concentrations detected were consistent with those detected in previous years (Figure C-3, Appendix C).

Iodine Monthly samples from all locations were analyzed for concentrations of 1-131 (Table C-11.2, Appendix C). lodine-131 activity was not detected in any samples.

Tritium Monthly samples from all locations were analyzed for tritium activity (Table C-11.3, Appendix C). Tritium was detected in two of 36 samples at concentrations just above the LLD. The concentration ranged from 386 to 537 pCi/L (Figures C-4, Appendix C). The hypothetical dose to the maximum exposed individual from consuming this water during both the time periods was calculated as <0.0061 mrem. (IR 1566255/1596165)

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

3. Effluent Water Monthly samples were collected from a continuous water sampler at one location (K1-1). The following analyses were performed:

Gross Beta Monthly samples from location K1-1 were analyzed for concentrations of gross beta (Tables C-111.1, Appendix C). Gross beta was detected in all 12 samples. The concentrations ranged from 2.9 to 7.0 pCi/l. Concentrations detected were consistent with those detected in previous years.

Iodine-131 Monthly samples from location K1-1 were analyzed for concentrations of 1-131 (Tables C-111.1, Appendix C). Iodine-131 was not detected in any of the samples.

Tritium Monthly samples from location K1 -1 were analyzed for tritium activity (Table C-111.1, Appendix C). Tritium activity was detected in 11 of 12 samples. The concentrations ranged from 645 to 97,000 pCi/l. The elevated results were a result of TMI releasing radwaste treatment system effluent water under permitted discharges in accordance with NRC regulations. These results were from the liquid discharge mixing basin. The concentrations detected agree with those obtained from the TMINS Effluent Monitoring Program.

The concentrations were well below any regulatory limits.

Strontium Semiannual composite samples from location K1-1 were analyzed for Sr-89 and Sr-90 (Table C-111.1, Appendix C). No strontium activity was detected. The highest MDC was calculated at <3.4 pCi/I for Sr-89 and at <0.8 pCi/I for Sr-90.

Gamma Spectrometry Samples from location K1-1 were analyzed for gamma emitting nuclides (Table C-111.2, Appendix C). All nuclides were less than the MDC.

4. Storm Water Storm water results are now included in the Annual Radiological Groundwater Protection Program (ARGPPR), Appendix F.

5. Ground Water Groundwater results are now included in the Annual Radiological Groundwater Protection Program (ARGPPR), Appendix F.

6. Fish Fish samples comprised of bottom feeders and predators were collected at two locations (IND and BKG) semiannually. Location IND could be affected by TMINS' effluent releases. The following analyses were performed:

Strontium The edible portions of fish samples from both locations were analyzed for Sr-90 (Table C-IV.1, Appendix C). No strontium activity was detected. The highest MDC was calculated at <4.0 pCi/kg wet for Sr-90.

Gamma Spectrometry The edible portions of fish samples from both locations were analyzed for gamma emitting nuclides (Table C-IV.2, Appendix C).

Naturally occurring K-40 was found in all fish samples and ranged from 2,924 to 5,278 pCi/kg wet and was consistent with levels detected in previous years. No fission or activation products were detected.

7. Sediment Aquatic sediment samples were collected at three locations (AI-3, J2-1 and K1-3) semiannually. Of these locations two (J2-1 and K1-

3) could be affected by TMINS' effluent releases. The following analysis was performed:

Gamma Spectrometry Sediment samples from all locations were analyzed for gamma emitting nuclides (Table C-V.1, Appendix C). Potassium-40 was found in all sediment samples and ranged from 8,026 to 19,290 pCi/kg dry. Cesium-137 was detected in one sediment sample at a concentration of 202 pCi/L. Cesium-1 37 is occasionally found in sediment at very low levels (just above LLD) and is not distinguishable from background levels. No other fission or activation products were detected (Figure C-5, Appendix C).

B. Atmospheric Environment

1. Airborne Particulates

a. Air Particulates Continuous air particulate samples were collected from seven locations on a weekly basis. Six locations (A3-1, El1-2, F1-3, G2-1, H3-1 and M2-1) were indicator stations located in the highest D/Q sectors and the nearest communities to TMI. One sample (Q15-1) represents the control location at a remote distance from TMINS. The following analyses were performed:

Gross Beta Weekly samples were analyzed for concentrations of beta emitters (Table C-VI.1 and C-VI.2, Appendix C).

Detectable gross beta activity was observed at all locations.

Comparison of results aid in determining the effects, if any, resulting from the operation of TMINS. The results from the closest to the site boundary locations (Group I) ranged from 7 to 38 E-3 pCi/m 3 with a mean of 16 E-3 pCi/m 3 . The results from the intermediate offsite locations (Group II) ranged from 6 to 48 E-3 pCi/m 3 with a mean of 17 E-3 pCi/m 3 . The results from the Control location (Group Ill) ranged from 8 to 44 E-3 pCi/m 3 with a mean of 18 E-3 pCi/m 3 . Comparison of the 2013 air particulate data with previous years' data indicate no effects from the operation of TMINS (Figure C-6, Appendix C). In addition a comparison of the weekly mean values for 2013 indicate no notable differences between indicator and control stations (Figure C-7, Appendix C).

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

Naturally occurring Be-7 due to cosmic ray activity was detected in 27 samples. These concentrations ranged from 51 to 118 E-3 pCi/m3. All other nuclides were less than the MDC.

b. Airborne Iodine Continuous air samples were collected from seven (A3-1, E1-2, F1-3, G2-1, H3-1, M2-1 and Q15-1) locations and analyzed weekly for 1-131 (Table C-VII.1, Appendix C). All results were less than the MDC for 1-131.

2. Terrestrial

a. Milk Samples were collected from five locations (K15-3, E2-2, F4-1 G2-1 and P4-1) biweekly March through November and monthly December through February. The following analyses were performed:

Iodine-131 Milk samples from all locations were analyzed for concentrations of 1-131 (Table C-VIII.1, Appendix C). All results were less than the MDC.

Strontium Milk samples from all locations were composited quarterly and analyzed for Sr-89 and Sr-90 (Table C-VIII.2, Appendix C). No Sr-89 or Sr-90 activity was detected. Occasionally Sr-90 is detected and is consistent with those detected in the pre-operational years (Figure C-8, Appendix C).

Gamma Spectrometry Milk samples from all locations were analyzed for concentrations of gamma emitting nuclides (Table C-VIII.3, Appendix C).

Naturally occurring K-40 activity was found in all samples.

The concentrations ranged from 715 to 1,793 pCi/I. All other nuclides were less than the MDC.

b. Food Products Food products were collected monthly at three locations (B10-2, E1-2 and H1-2), in lieu of milk sampling and annually from the four food product groups at two locations (B10-2, E1-2 and H11-2). B10-2 was the control location for both annual and monthly sampling. The following analyses were performed:

Strontium Twenty-six of 32 food product samples were analyzed for concentrations of Sr-90 (Table C-IX.1, Appendix C).

Strontium-90 activity was detected in 21 of 26 samples. The concentrations ranged from 3 to 30 pCi/kg wet.

Gamma Spectrometry Each food product sample was analyzed for concentrations of gamma emitting nuclides (Table C-IX.1, Appendix C).

Naturally occurring Be-7 due to cosmic ray activity was detected in 20 of 32 samples. These concentrations ranged from 141 to 2,637 pCi/l. Naturally occurring K-40 activity was found in all samples. The concentrations ranged from 2,005 to 9,046 pCi/I. All other nuclides were less than the MDC.

C. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Optically Stimulated Luminescence Dosimeter (OSLD). Ninety OSLD locations were established around the site. Results of OSLD measurements are listed in Tables C-X.1 to C-X.3, Appendix C All of the OSLD measurements were below 40 mR/quarter, with a range of 14.0 to 30.9 mR/standard quarter. A comparison of the Site Boundary and Indicator data to the Control Location data, indicate that the ambient gamma radiation levels from the Control Locations D1 5-1, F25-1, G1 0-1, G15-1, H15-1, J15-1, K15-1, L15-1, N15-2, Q15-1 and R15-1 averaged higher than indicator stations. Locations D15-1, F25-1, G10-1, G15-1, H15-1, J15-1, K15-1, L15-1, N15-2, Q15-1 and R15-1 have a historical high bias, but tracked with the data from all three groups this bias is most likely due to radon and other naturally occurring nuclides, e.g. K-40, emanating from the ground.

D. Land Use Survey A Land Use Survey conducted in the July through December 2013 and January 2014 growing season around the Three Mile Island Nuclear Station (TMINS) was performed by Normandeau Associates, RMC Environmental Services Division for Exelon to comply with Sections 8.2 of the Plant's Offsite Dose Calculation Manual (ODCM). The purpose of the survey was to document the nearest resident, milk-producing animal and garden of greater than 500 ft in each of the sixteen 22 1/2 degree sectors around the site. The results of this survey are summarized below.

Distance in Miles from the TMINS Reactor Buildings Sector Residence Garden Milk Farm Meat Animal Miles Miles Miles Miles 1 N 1.1 1.6 2.1 2.1 2 NNE 0.7 1.2 2.4 3 NE 0.5 0.6 4.2 2.4 4 ENE 0.5 0.5 4.5 1.1 5 E 0.4 0.5 1.1 1.1 6 ESE 1.1 1.2 3.2 1.1 7 SE 0.7 1.6 1.4 1.4 8 SSE 0.7 0.8 9 S 2.3 2.7 3.3 10 SSW 0.6 2.5 4.9, 14.4 4.9 11 SW 0.5 1.0 12 WSW 0.5 1.3 13 W 0.7 1.4 14 WNW 0.4 2.2 3.7 2.4 15 NW 0.4 1.2 16 NNW 1.1 2.4 E. Radiological Impact of TMINS Operations An assessment of potential radiological impact indicated that radiation doses to the public from 2013 operations at TMINS were well below all applicable regulatory limits and were significantly less than doses received from natural sources of radiation. The 2013 whole body dose potentially received by an assumed maximum exposed individual from TMI-1 and TMI-2 liquid and airborne effluents was conservatively calculated to be 0.21 mrem. This dose is equivalent to 0.07% of the dose that an individual living in the TMI area receives each year from natural background radiation.

1. Determination of Radiation Doses to the Public Dose assessments can be performed by using either effluent data and an environmental transport model or environmental sample data. To the extent possible, doses to the public are based on the direct measurement of dose rates from external sources and the measurement of radionuclide concentrations in environmental media which may contribute to an internal dose of radiation. Optically Stimulated Luminescent Dosimetry (OSLDs) positioned in the environment around TMINS provide measurements to determine external radiation doses to humans. Samples of air, water and food products are used to determine internal doses.

The quantity of radioactive materials released during normal operations are typically too small to be measured once distributed in the offsite environment. Therefore, the potential offsite doses are more effectively calculated for TMINS operations using a computerized model that predicts concentrations of radioactive materials in the environment and subsequent radiation doses based on measured effluents.

Doses are calculated using an advanced "class A" dispersion model.

This model incorporates the guidelines and methodology set forth by the USNRC in Regulatory Guide 1.109. Due to the conservative assumptions that are used in the model, the calculated doses are generally higher than the doses based on actual environmental sample concentrations.

Therefore, the model predicts doses that are higher than actual doses received by people. The type and amount of radioactivity released from TMINS is calculated using measurements from effluent sample analyses. Once released, the dispersion of radionuclides in the environment is readily determined by computer modeling.

Airborne releases are diluted and carried away from the site by atmospheric diffusion, which continuously acts to disperse radioactivity. Variables that affect atmospheric dispersion include wind speed, temperature at different elevations, terrain, and shift in wind direction. A weather station on the north end of TMI is linked to a data logger that records the meteorological data.

Computer models also are used to predict the downstream dilution and travel times for liquid releases into the Susquehanna River.

Actual monthly Susquehanna River flows are obtained from the USGS Stream gauging station 01570500 located at Harrisburg, PA.

The human exposure pathways also are included in the model and are depicted in Figure 1. The exposure pathways that are considered for the discharge of TMINS liquid effluents are consumption of drinking water and fish and shoreline exposure. The exposure pathways considered for the discharge of TMINS airborne effluents are plume exposure, inhalation, cow milk consumption, fruit and vegetable consumption, meat consumption and land deposition.

Numerous data files are used in the calculations that describe the area around TMI in terms of receptors. Data files include such information as the distance from the plant stack to the site boundary in each sector, the population groupings, milk cows, milk goats, gardens of more than 500 square feet, meat animals, downstream drinking water users and crop yields.

When determining the dose to humans, it is necessary to consider all applicable pathways and all exposed tissues, summing the dose from each to provide the total dose for each organ as well as the whole body from a given radionuclide. Dose calculations involve determining the energy absorbed per unit mass in the various tissues. Thus, for radionuclides taken into the body, the metabolism of the radionuclide in the body must be known along with the physical characteristics of the nuclide such as energies, types of radiations emitted and half-life. The dose assessment model also contains dose conversion factors for the radionuclides for each of four age groups (adults, teenagers, children and infants) and eight organs (total body, thyroid, liver, skin, kidney, lung, bone and GI tract).

Doses are calculated for what is termed the "maximum hypothetical individual". This individual is assumed to be affected by the combined maximum environmental concentrations wherever they occur.

For liquid releases, the maximum hypothetical individual would consume 193 gallons of Susquehanna River water per year from the first downstream drinking water supplier, eat 46 pounds of fish each year that reside in the plant discharge area and stand 67 hours7.75463e-4 days 0.0186 hours 1.107804e-4 weeks 2.54935e-5 months per year on the shoreline influenced by the plant discharge.

For airborne releases, the maximum hypothetical individual would live at the location of highest radionuclide concentration for inhalation and direct plume exposure. Additionally, each year the hypothetical individual would consume 106 gallons of cow milk, 141 pounds of leafy vegetables, 1389 pounds of non-leafy vegetables and fruits and 243 pounds of meat produced at the locations with the highest predicted radionuclide concentrations. The exposure pathway through goat milk does not currently exist. Therefore, goat milk is not included.

2. Result of Dose Calculations The maximum hypothetical doses due to 2013 TMI-1 and TMI-2 liquid and airborne effluents are summarized in Tables 1 and 2.

Table 1 compares the calculated maximum hypothetical individual doses to the USNRC 10 CFR 50 App. I guidelines. This table also compares the calculated doses (to an individual of the public) from effluents and direct radiation to USEPA 40 CFR 190 dose limits.

Table 2 presents the maximum hypothetical whole body doses to an individual. As shown in Table 1, the doses calculated for 2013 operations at TMINS were well below the Federal dose limits (USEPA 40 CFR 190) and the guidelines of USNRC 10 CFR 50 App. I. This conclusion was supported by radionuclide concentrations detected in actual environmental samples.

Doses from natural background radiation provide a baseline for assessing the potential public health significance of radioactive effluents. Natural background radiation from cosmic, terrestrial and natural radionuclides in the human body (not including radon),

averages about 81 mrem/yr (Ref. 5). Additionally, the average individual living in the United States receives an annual dose of about 2,760 mrem to the lung from natural radon gas. This lung dose is considered to be equivalent to a whole (or total) body dose of 230 mrem (Ref. 5). Therefore, the average person in the United States receives a whole body dose of about 311 mrem/yr from natural background radiation sources.

As shown on Table 2, the maximum hypothetical whole body dose received by an individual from 2013 TMI-1 and TMI-2 liquid and airborne effluents combined was conservatively calculated to be 0.21 mrem. This dose is equivalent to 0.07% percent of the dose that an individual living in the TMI area receives each year from natural background radiation (311 mrem).

The low doses calculated for 2013 TMINS operations were the result of efforts to maintain releases "as low as reasonably achievable" (ALARA).

In conclusion, radioactive materials related to 2013 TMINS operations were detected in environmental samples, but the measured concentrations were low and consistent with measured effluents. The environmental sample results verified that the doses received by the public from TMINS effluents in 2013 were well below applicable dose limits and only a small fraction of the doses received from natural background radiation. Additionally, the results indicated that there was no permanent buildup of radioactive materials in the environment and no increase in background radiation levels.

Therefore, based on the results of the radiological environmental monitoring program (REMP) and the doses calculated from measured effluents, TMINS operations in 2013 did not have any adverse effects on the health of the public or on the environment.

TABLE 1 Calculated Maximum Hypothetical Doses to an Individual from 2013 TMI-1 and TMI-2 Liquid and Airborne Effluents Maximum Hypothetical Doses To An Individual USNRC 10 CFR 50 APP. I Calculated Dose Guidelines (mrem/yr)

(mrem/yr) TMI-1 TMI-2 From Radionuclides 3 total body, or 2.48E-2 1.84E-4 In Liquid Releases 10 any organ 2.59E-2 2.92 E-4 From Radionuclides In 5 total body, or 1.04E-4 0*

Airborne Releases (Noble Gases) 15 skin 1.60E-4 0*

From Radionuclides In Airborne 15 any organ 1.81E-I 2.67E-5 Releases (Iodines, Tritium and Particulates)

No noble gases were released from TMI-2.

USEPA Calculated Dose 40 CFR 190 (mrem/yr)

Limits TMI-1 and TMI-2 (mrem/yr) Combined**

Total from Site 75 thyroid 0.58 25 total body 0.72 or other organs

*This sums together TMII-1 and TMI-2 maximum doses regardless of age group for different pathways.

The combined doses include those due to radioactive effluents and direct radiation from TMINS. The direct radiation dose is calculated from environmental dosimeter data. For this calculation, exposure is assumed to be equal to dose.

The direct radiation dose from 2013 TMINS operations was 0.51 mrem. This dose was based on a maximum net fence-line exposure rate of 0.94 mR/std qtr and a shoreline/fence-line occupancy factor of 67 hours7.75463e-4 days 0.0186 hours 1.107804e-4 weeks 2.54935e-5 months (Regulatory Guide 1.109). The combination of the maximum organ dose from TMI-I and TMI-2 effluents (0.21 mrem) and the dose from direct radiation (0.51 mrem) yielded a maximum hypothetical dose of 0.72 mrem.

TABLE 2 Calculated Whole Body Doses to the Maximum Individual From 2013 TMI-1 and TMI-2 Liquid and Airborne Effluents Calculated Maximum Individual Whole Body Dose (mrem/yr)

TMI-I TMII-2 From Radionuclides In Liquid Releases 2.48E-2 1.84E-4 From Radionuclides in Airborne Releases 1.04E-4 0*

(Noble Gases)

From Radionuclides In Airborne 4.50E-2 2.67E-5 Releases (Iodines, Tritium and Particulates)

No noble gases were released from TMI-2.

Individual Whole Body Dose Due to TNMI-I and TMI-2 Operations: 0.21 mren/vyr Individual Whole Body Dose Due to Natural Background Radiation (1) 311 mrem/yr (1) NCRP 160- (2009)

Figure 1 Exposure Pathways For Radionuclides Routinely Released From TMINS NOBLE GASES (Xe,Kr) ACTIVATION PRODUCTS.(Co-60, Mn-54)

Plume exposure Shoreline exposure RADIOIODINES (1-131, 1-133) RADIOCESIUMS (Cs-134, Cs-137)

Inhalation and consumption of milk, Shoreline exposure and consumption of milk, water, fruits! and vegetables meat, fish, water, fru its, and vegetables RADIOSTRONTIUMS (Sr-89. Sr-90) TR(TIUM (H-3)

Consumption of milk, meat. Inhalation and consumption of water, fruits, and vegetables milk, fruits, and vegetables F. Errata Data Teledyne Brown Engineering (TBE) provides data results [activity, uncertainty and minimum detectable concentration {MDC}]. We are required to calculate the MDC using a multiplier of 4.66.

4.66

MDA = At 2.22 (v)(y) (a)(')

Where:

At = counting time for sample (minutes) p3 = background rate of instrument blank (cpm) 2.22 = dpm/pCi or: 2.22 x 106 dpm/ItCi v = volume or mass of sample analyzed y = chemical yield F = efficiency of the counter The formulas for calculating the activity, uncertainty and MDC are contained in the software of the counting equipment. For the gamma system, when the new detector number 08 was added to the system in January 2012, the default value of 3.29 was used to calculated the MDCs on detector 08. The activity and uncertainty were not affected. The multiplier has been changed from 3.29 to the required 4.66.

When the MDCs are recalculated using 4.66, the MDC values will increase by 41.6%. The greatest impact will be on the short-lived nuclides which have an LLD requirement, e.g. 1-131, Ba-140 and La-140. Which means there could be some missed LLDs which will be identified in the Errata Data Appendix table of the 2013 annual report. This is not a reportable issue for the NRC. There is also the possibility that naturally produced nuclides that were detected would become a non-detect, e.g Th-228, Th-230, etc.

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

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

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

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

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

For the TBE laboratory, 178 out of 185 analyses performed met the specified acceptance criteria. Seven analyses (Sr-89 and Sr-90 in milk, Co-57, Zn-65 and Sr-90 in soil, Cs-1 34 in air particulate and Sr-90 in vegetation [two low warning in a row]) did not meet the specified acceptance criteria or internal QA requirements for the following reason:

1. Teledyne Brown Engineering's Analytics September 2013 Sr-89 in milk result of 63.9 pCi/L was lower than the known value of 96.0 pCi/L. The failure was a result of analyst error and was specific to the Analytics sample. Client samples for the associated time period were evaluated and no client samples were affected by this failure. NCR 13-15

2. Teledyne Brown Engineering's Analytics September 2013 Sr-90 in milk result of 8.88 pCi/L was lower than the known value of 13.2 pCi/L. The failure was a result of analyst error and was specific to the Analytics sample. Client samples for the associated time period were evaluated and no client samples were affected by this failure. NCR 13-15

3. & 4.Teledyne Brown Engineering's MAPEP September 2013 Co-57 and Zn-65 in soil were evaluated as failing the false positive test.

While MAPEP evaluated the results as failures, the gamma software listed the results as non identified nuclides. The two nuclides would never have been reported as detected nuclides to a client. MAPEP does not allow laboratories to put in qualifiers for the submitted data nor "less than" results. MAPEP evaluates results based on the relationship between the activity and the uncertainty. MAPEP spiked the soil sample with an extremely large concentration of Eu-1 52, which was identified by the gamma software as an interfering nuclide, resulting in forced activity results that were evaluated by MAPEP as detected Co-57 and Zn-65. No client samples were affected by these failures. NCR 13-14

5. Teledyne Brown Engineering's MAPEP September 2013 Sr-90 in soil result of 664 Bq/kg was higher than the known value of 460 Bq/kg, exceeding the upper control limit of 598 Bq/kg. An incorrect Sr-90 result was entered into the MAPEP database. The correct Sr-90 activity of 322 Bq/kg would have been evaluated as acceptable with warning. No client samples were affected by this failure. NCR 13-14

6. Teledyne Brown Engineering's MAPEP September 2013 Cs-1 34 in air particulate activity of -0.570 Bq/sample was evaluated as a failed false positive test, based on MAPEP's evaluation of the result as a significant negative value at 3 standard deviations. A negative number would never have been reported as a detected nuclide to a client, therefore no client samples were affected by this failure.

NCR 13-14

7. Teledyne Brown Engineering's MAPEP September 2013 Sr-90 in vegetation result was investigated due to two low warnings in a row. It appears the September sample was double spike with carrier, resulting in a low activity. With a recovery of around 50%

lower, the Sr-90 result would have fallen within the acceptance range. No client samples were affected by this issue. NCR 13-14 For the EIML laboratory, 89 of 92 analyses met the specified acceptance criteria. Three analyses (AP - Gross Alpha, Soil - Sr-90 and Co-57) did not meet the specified acceptance criteria for the following reasons:

1. Environmental Inc., Midwest Laboratory's MAPEP February 2013 air particulate gross alpha result of 0.14 Bq/total sample was lower than the known value of 1.20 Bq/total sample, exceeding the lower control limit of 0.36 Bq/total sample. The filter was recounted overnight. No significant activity could be detected.

2. Environmental Inc., Midwest Laboratory's MAPEP February 2013 soil Co-57 result of 408.40 Bq/kg was lower than the known value of 628.0 Bq/kg, exceeding the lower control limit of 440.0 Bq/kg.

The sample was reanalyzed using additional fuming nitric separations. The reanalysis result of 574.4 fell within the control limits.

3. Environmental Inc., Midwest Laboratory's MAPEP August 2013 soil C-57 result of 699.60 Bq/kg was higher than the known value of 0.00 Bq/kg, exceeding the upper control limit of 5.00 Bq/kg.

Interference from Eu-152 resulted in misidentification of Co-57.

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. Three Mile Island Nuclear Station, Unit 1, Technical Specifications, DPR 50.

2. Three Mile Island Nuclear Station, Unit 2, PDMS Technical Specifications, DPR 73.

3. Radiation Management Corporation. "Three Mile Island Nuclear Station, Preoperational Radiological Environmental Monitoring Program, January 1, 1974 - June 5, 1974." RMC-TR-75-17, January 1975.

4. Exelon. "Three Mile Island Nuclear Station Offsite Dose Calculation Manual (ODCM)."

5. National Council of Radiation Protection and Measurements Report No.

160. "Ionizing Radiation Exposure of the Population of the United States."

2009.

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

Intentionally left blank TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN 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 24 2000 2025 <LLD 2025 J 1-2 INDICATOR (PCI/LITER) (10/12) (.10/12) WEST SHORE; TMI (735/5580) (735/5580) 0.5 MILES S OF SITE 1-131 12 I NA 1.1 1.1 A3-2 CONTROL (1/12) (1/12) SWATARA CREEK 2.5 MILES N OF SITE GAMMA 24 MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD FE-59 30 <LLD <LLD 0 CO-60 15 <LLD <LLD 0 ZN-65 30 <LLD <LLD NB-95 15 <LLD <LLD SURFACE WATER ZR-95 30 <LLD <LLD 0 (PCI/LITER)

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

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN 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 CS-134 15 <LLD <LLD 0 CS-137 18 <LLD <LLD 0 BA-140 60 <LLD <LLD 0 LA-140 15 <LLD <LLD 0 DRINKING WATER 6 R-B 36 4 3.1 2.4 3.3 G 15-2 INDICATOR (PCIVLITER) (1/824) (6/12) (11/12) WRIGHTS WATER SUPPLY (1.8/5.2) (1.7/2.9) (1.8/5.2) 13.3 MILES SE OF SITE 1-131 36 1 <LLD <LLD 0 H-3 36 2000 462 <LLD 462 G 15-3 INDICATOR (2/24) (2/12) LANCASTER WATER AUTHORITY (386/537) (386/537) 14.8 MILES SE OF SITE DRINKING WATER GAMMA 36 (PCI/LITER) MN-54 15 <LLD <LLD 0 CO-58 15 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN 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 FE-59 30 <LLD <LLD CO-60 15 <LLD <LLD 0 ZN-65 30 <LLD <LLD 0 NB-95 15 <LLD <LLD ZR-95 30 <LLD <LLD CS-134 15 <LLD <LLD 0 DRINKING WATER CS-137 18 <LLD <LLD (PCI/LITER)

BA-140 60 <LLD <LLD LA- 140 15 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (") 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 EFFLUENT WATER GR-13 12 4 4.8 NA 4.8 KI-I INDICATOR 0 (PCI/LITER) (12/12) (12/12) MAIN STATION LIQ. DISCHARGE (2.9/7.0) (2.9/7.0) ONSITE 1-131I 12 <LLD NA 0 H-3 12 2000 20928 NA 20928 KI-I INDICATOR 0 (11/12) (11/12) MAIN STATION LIQ. DISCHARGE (645/97000) (645/970001 ONSITE SR-89 2 5 <LLD NA 0 SR-90 2 <LLD NA 0 EFFLUENT WATER GAMMA 12 (PCI/LITER) MN-54 I5 <LLD NA 0 CO-58 15 <LLD NA 0 FE-59 30 <LLD NA 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN 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 CO-60 15 <LLD NA 0 ZN-65 30 <LLD NA 0 NB-95 15 <LLD NA 0 ZR-95 30 <LLD NA CS-134 15 <LLD NA 0 EFFLUENT WATER CS-137 18 <LLD NA 0 (PCULITER)

BA-140 60 <LLD NA LA- 140 15 <LLD NA 0 BOTTOM FEEDER SR-90 4 I0 <LLD <LLD 0 (PCI/KG WET)

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

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (NM)

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 GAMMA 4 K-40 NA 3300 3669 3669 BKGB CONTROL (2/2) (2/2) (2/2) CITY ISLAND (2924/3676) (3492/3846) (3492/3846) UPSTREAM OF DISCHARGE MN-54 130 <LLD <LLD 0 CO-58 130 <LLD <LLD FE-59 260 <LLD <LLD 0 BOTTOM FEEDER CO-60 130 <LLD <LLD (PCIJKG WET)

ZN-65 260 <LLD <LLD CS-134 130 <LLD <LLD 0 CS-137 150 <LLD <LLD PREDATOR SR-90 4 10 <LLD <LLD 0 (PCI/KG WET)

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

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN 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 LIM]T (F) (F) (F) NAME NONROUTINE (UNIT OF PERFORMED PERFORMED OF DETECTION RANGE RANGE RANGE DISTANCE AND DIRECTION REPORTED MEASUREMENT) (LLD) MEASUREMENTS GAMMA 4 K-40 NA 3588 4130 4130 BKGP CONTROL 0 (2/2) (2/2) (2/2) CITY ISLAND (3349/3826) (2982/5278) (2982/5278) UPSTREAM OF DISCHARGE MN-54 130 <LLD <LLD 0

-~ CO-58 130 <LLD <LLD 0 PREDATOR FE-59 260 <LLD <LLD 0 (PCI/KG WET)

CO-60 130 <LLD <LLD 0 ZN-65 260 <LLD <LLD 0 CS-134 130 <LLD <LLD 0 CS-137 150 <LLD <LLD 0 SEDIMENT GAMMA THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

LOCATIONS LOCATION MEDIUM OR TYPES OF NUMBER OF REQUIRED MEAN (MI 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 (PCI/KG DRY) K-40 NA 14580 15915 18710 EDCB INDICATOR 0 (5/5) (2/2) (I/I) STORM WATER BASIN (8026/19290) (13750/18080) 0.2 MILES SE OF SITE MN-54 NA <LLD <LLD CO-58 NA <LLD <LLD 0 Ge SEDIMENT CO-60 NA <LLD <LLD 0 (PCI/KG DRY)

CS-134 150 <LLD <LLD CS-137 180 202 <LLD 202 EDCB INDICATOR 0 (1/5) (1/1) STORM WATER BASIN 0.2 MILES SE OF SITE AIR PARTICULATE GR-B 359 10 17 18 18 Q15-I CONTROL (E-3 PCI/CU.METER) (297/309) (47/50) (47/50) WEST FAIRVIEW (6/48) (8/44) (8/44) 13.5 MILES NW OF SITE GAMMA 28 BE-7 NA 72 70 78 A3-1 INDICATOR 0 (23/24) (4/4) (4/4) MIDDLETOWN (51/118) (58/77) (70/94) 2.6 MILES N OF SITE MN-54 NA <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN 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 CO-58 NA <LLD <LLD CO-60 NA <LLD <LLD 0 AIR PARTICULATE NB-95 NA <LLD <LLD (E-3 PCI/CU.METER)

ZR-95 NA <LLD <LLD 0 CS-134 50 <LLD <LLD 0 CS-137 60 <LLD <LLD 0 AIR IODINE GAMMA 359 (E-3 PCI/CU.METER) 1-131 70 <LLD <LLD MILK 1-131 110 <LLD (PCI/LITER)

SR-89 20 5 <LLD <LLD 0 THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (MN)

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 SR-90 20 2 <LLD <LLD 0 MILK GAMMA 110 (PCI/LITER) K-40 NA 1265 1312 1395 F4-1 INDICATOR (88/88) (22/22) (22/22) TURNPIKE ROAD FARM (715/1793) (1132/1465) (1129/1526) 3.0 MILES ESE OF SITE 0 CS-134 15 <LLD <LLD 0 CS-137 18 <LLD <LLD 0 BA-140 60 <LLD <LLD LA- 140 15 <LLD <LLD 0 VEGETATION SR-90 26 10 13 10 14 H 1-2 INDICATOR (PCI/KG WET) (12/13) (9/13) (11/12) RED HILL MARKET, ALONG ROUTE 44 (4/27) (3/30) (4/27) 1.0 MILES SSE OF SITE GAMMA 32 BE-7 NA 615 930 930 B 10-2 CONTROL (11/16) 19/16) (9/16) MILTON HERSHEY SCHOOL (141/1435) (147/2637) (147/2637) 10.1 MILES NNE OF SITE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

TABLE A-I RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE THREE MILE ISLAND NUCLEAR STATION, 2013 NAME OF FACILITY: THREE MILE ISLAND NUCLEAR STATION DOCKET NUMBER: 50-289 & 50-320 2013 LOCATION OF FACILITY: MIDDLETOWN COUNTY PA REPORTING PERIOD:

INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (N1)

LOCATIONS LOCATION MEDJUM 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 K-40 NA 4186 4903 4903 B 10-2 CONTROL 0 (PCI/KG WET) (16/16) (16/16) (16/16) MILTON HERSHEY SCHOOL (2431/8483) (2005/9046) (2005/9046) 10.1 MILES NNE OF SITE 1-131I 60 <LLD <LLD CS-134 60 <LLD <LLD 0 CS-137 80 <LLD <LLD 0 DIRECT RADIATION OSLD-QUARTERLY 360 NA 19.9 22.1 29.6 H8-1 INDICATOR (MILLI-ROENTGEN/STD.MO.) (316/316) (44144) (4/4.) SAGINAW ROAD, STARVIEW (14.0/30.9) (17.6/29.7) (29.4/29.9) 7.4 MILES SSE OF SITE THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUE FRACTION OF DETECTABLE MEASUREMENT AT SPECIFIED LOCATIONS IS INDICATED IN PARENTHESIS (F)

Intentionally left blank APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS

Intentionally left blank TABLE B-i: Location Designation and Identification System for the Three Mile Island Nuclear Station XYY-Z- General code for identification of locations, where:

x - Angular Sector of Sampling Location. The compass is divided into 16 sectors of 22 1/2 degrees each with center at Three Mile Island's Units 1 and 2 off-gas vents. Sector A is centered due North, and others are alphabetical in a clockwise direction.

YY Radial Zone of Sampling Location in miles.

Z Station's Numerical Designation within sector and zone, using 1, 2, 3... in each sector and zone.

B-1

TABLE B-2: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Three Mile Island Nuclear Station, 2013 Sample Station Map Distance Medium Code Number (miles) Azimuth Description AQS A1-3 1 0.5 3590 N of site off north tip of TMI in Susquehanna River ID A1-4 1 0.3 60 N of Reactor Building on W fence adjacent to North Weather Station, TMI APAIID A3-1 2 2.7 3570 N of site at Mill Street Substation SW A3-2 2 2.7 356' N of site at Swatara Creek, Middletown ID A5-1 2 4.4 30 N of site on Vine Street Exit off Route 283 ID A9-3 3 8.0 20 N of site at Duke Street Pumping Station, Hummelstown ID B1-1 1 0.6 25' NNE of site on light pole in middle of North Bridge, TMI ID B1-2 0.4 230 NNE of Reactor Building on top of dike, TMI ID B2-1 2 1.9 170 NNE of site on Sunset Dr. (off Hillsdale Rd.)

ID B5-1 2 4.9 190 NNE of site at intersection of School House and Miller Roads ID B10-1 3 9.2 210 NNE of site at intersection of West Areba Avenue and Mill Street, Hershey FP B10-2 3 10 310 NNE of site at Milton Hershey School, Hershey ID C1-1 1 0.7 370 NE of site along Route 441 N ID C1-2 1 0.3 500 NE of Reactor Building on top of dike, TMI ID C2-1 1.5 440 NE of site at Middletown Junction 2

ID C5-1 2 4.7 430 NE of site on Kennedy Lane ID C8-1 3 7.1 480 NE of site at Schenk's Church on School House Road AQF Control - All locations where finfish are collected above Dock St.

Dam, Harrisburg ID D1-1 1 0.2 760 ENE of Reactor Building on top of dike, TMI ID D1-2 1 0.5 670 ENE of site off Route 441 along lane between garden center and residence ID D2-2 1.6 740 ENE of site along Hillsdale Rd. (S of Zion Rd.)

ID D6-1 5.2 660 ENE of site off Beagle Road ID D15-1 10.8 640 ENE of site along Route 241, Lawn AP, Al, ID, FP E1-2 0.4 970 E of site at TMI Visitor's Center 970 E of Reactor Building on top of dike, TMI ID E1-4 0.2 960 E of site at farm on Pecks Road M E2-2 1.1 ID E2-3 2.0 970 E of site along Hillsdale Rd. (N of Creek Rd.)

ID E5-1 4.7 820 E of site at intersection of North Market Street (Route 230) and Zeager Road ID E7-1 6.7 880 E of site along Hummelstown Street, Elizabethtown ID F1-1 0.5 1170 ESE of site near entrance to 500 kV Substation ID F1-2 0.2 1120 ESE of Reactor Building on top of dike midway within ISWSF, TMI AP, Al F1-3 0.6 1120 ESE of site in 500 kV Substation ID F1-4 0.2 1220 ESE of Reactor Building on top of dike, TMI ID F2-1 1.3 1190 ESE of site along Engle Road M F4-1 3.2 1040 ESE of site at farm on Turnpike Road ID F5-1 4.7 1090 ESE of site along Amosite Road ID F10-1 9.4 1120 ESE of site along Donegal Springs Road, Donegal Springs ID F25-1 22 1060 ESE of site at intersection of Steel Way and Loop Roads, Lancaster ID G1-2 0.7 1450 SE of site along Route 441 S ID G1-3 0.2 1300 SE of Reactor Building on top of dike, TMI ID GI-5 0.3 1430 SE of Reactor Building on top of dike, TMI ID G1-6 0.3 1390 SE of Reactor Building on top of dike, TMI Al, AP, M G2-1 1.4 1260 SE of site at farm on Becker Road ID G2-4 1.7 1380 SE of site on Becker Road ID G5-1 4.8 131' SE of site at intersection of Bainbridge and Risser Roads ID G10-1 9.7 1280 SE of site at farm along Engles Tollgate Road, Marietta ID G15-1 14.4 1260 SE of site at Columbia Water Treatment Plant DW G15-2 13.3 1290 SE of site at Wrightsville Water Treatment Plant DW G15-3 15.7 1240 SE of site at Lancaster Water Treatment Plant B-2

TABLE B-2: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Three Mile Island Nuclear Station, 2013 Sample Station Map Distance Medium Code Number (miles) Azimuth Description ID H1-1 0.5 167' SSE of site, TMI FP Hi1-2 1.0 1510 SSE of site along Route 441, Red Hill Market AP, Al, ID H3-1 2 2.2 160' SSE of site in Falmouth-Collins Substation ID H5-1 2 4.1 158' SSE of site by Guard Shack at Brunner Island Steam Electric Station ID H8-1 3 7.4 163' SSE of site along Saginaw Road, Starview ID H15-1 3 13.2 1570 SSE of site at intersection of Orchard and Stonewood Roads, Wilshire Hills AQF Indicator - All locations where finfish are collected downstream of the TMINS liquid discharge outfall ID J1-1 1 0.8 176' S of site, TMI SW J11-2 1 0.5 1880 S of site downstream of the TMINS liquid discharge outfall in Susquehanna River ID J 1-3 1 0.3 189, S of Reactor Building just S of SOB, TMI AQS J2-1 2 1.4 1790 S of site in Susquehanna River just upstream of the York Haven Dam ID J3-1 2 2.7 1790 S of site at York Haven/Cly ID J5-1 2 4.9 181' S of site along Canal Road, Conewago Heights ID J7-1 3 6.5 176' S of site off of Maple Street, Manchester ID J15-1 3 12.6 1830 S of site in Met-Ed York Load Dispatch Station EW K1-1 i 0.2 210' On site at RML-7 Main Station Discharge Building AQS K1-3 1 0.2 212' SSW of site downstream of the TMINS liquid discharge outfall in the Susquehanna River ID K1.-4 0.2 2090 SSW of Reactor Building on top of dike behind Warehouse 2, TMI ID K2-1 2 1.2 200' SSW of site on S Shelley Island ID K3-1 2 2.0 206' SSW of site along Rt. 262, N of Cly ID K5-1 2 4.9 202' SSW of site along Conewago Creek Road, Strinestown ID K8-1 3 7.5 1960 SSW of site at intersection of Coppenhaffer Road and Route 295, Zions View ID K15-1 3 12.8 2030 SSW of site behind McDonald's and next to child care center, Weiglestown M K15-3 3 14.4 2050 SSW of site at farm along S Salem Church Rd, Dover ID U1-11 1 0.1 236' SW of site on top of dike W of Mech. Draft Cooling Tower, TMI ID L1-2 0.5 221 SW of site on Beech Island ID L2-1 2 1.8 2240 SW of site along Route 262 ID L5-1 2 4.1 228' SW of site at intersection of Stevens and Wilson Roads ID L8-1 3 8.0 2250 SW of site along Rohlers Church Rd., Andersontown ID L15-1 3 11.8 226' SW of site on W side of Route 74, rear of church, Mt.

Royal ID M1-1 1 0.1 2500 WSW of Reactor Building on SE comer of U-2 Screenhouse fence, TMI ID M1-2 1 0.4 2520 WSW of site on E side of Shelley Island, Lot #157 AP, Al, ID M2-1 2 1.3 2560 WSW of site along Route 262 and adjacent to Fishing Creek, Goldsboro ID M5-11 2 4.3 2490 WSW of site at intersection of Lewisberry and Roxberry Roads, Newbenytown ID M9-1 3 8.7 2430 WSW of site along Alpine Road, Maytown ID N11-11 1 0.7 2740 W of site on W side of Shelley Island, between lots #13 and #14 ID N1-3 1 0.1 2740 W of Reactor Building on fence adjacent to Screenhouse entrance gate, TMI ID N2-1 2 1.2 2610 W of site at Goldsboro Marina ID N5-1 2 5.0 2680 W of site off of Old York Road along Robin Hood Drive ID N8-1 3 7.7 2620 W of site along Route 382, 1/2 mile north of Lewisberry ID N15-2 3 10.4 2750 W of site at intersection of Lisburn Road and Main Street, Lisbum ID P1-1 1 0.4 3030 WNW of site on Shelley Island B-3

TABLE B-2: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Three Mile Island Nuclear Station, 2013 Sample Station Map Distance Medium Code Number (miles) Azimuth Description ID P1-2 1 0.1 2920 WNW of Reactor Building on fence N of Unit 1 Screenhouse, TMI ID P2-1 2 2.0 2830 WNW of site along Route 262 M P4-1 2 3.7 2950 WNW of site at farm on Valley Road ID P5-1 2 5.0 284' WNW of site at intersection of Valley Road (Route 262) and Beinhower Road ID P8-1 3 8.0 2920 WNW of site along Evergreen Road, Reesers Summit ID Q1-1 0.5 317° NW of site on E side of Shelley Island ID Q1-2 0.2 321' NW of Reactor Building on fence W of Warehouse 1, TMI ID Q2-1 2 1.9 3100 NW of site along access road along river ID Q5-1 2 5.0 317' NW of site along Lumber Street, Highspire SW, DW, ID Q9-1 3 8.5 3100 NW of site at the Steelton Water Company AP, Al, ID Q15-1 3 13.4 309' NW of site behind West Fairview Fire Dept. Social Hall (abandoned)

ID R1-1 3 0.2 3350 NNW of Reactor Building along W fence, TMI ID R1-2 1 0.7 334' NNW of site on central Henry Island ID R3-1 2 2.6 3410 NNW of site at Crawford Station, Middletown ID R5-1 2 4.9 339' NNW of site at intersection of Spring Garden Drive and Route 441 ID R9-1 3 8.0 341' NNW of site at intersection of Derry and 66th Streets, Rutherford Heights ID R15-1 3 11.2 3320 NNW of site at intersection of Route 22 and Colonial Road, Colonial Park IDENTIFICATION KEY ID = Immersion Dose (OSLD) EW = Effluent Water SW = Surface Water DW = Drinking Water Al = Air Iodine M = Milk (Cow)

AP = Air Particulate AQF = Finfish FP = Food Products (Green Leafy AQS = Aquatic Sediment Vegetation, Fruits, Vegetables)

B-4

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Three Mile Island Nuclear Station, 2013 Sample Analysis Sampling Method Collection Procedure Number Sample Size Analytical Procedure Number Medium Surface Gamma Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2007 Gamma emitting radioisotope analysis Water Spectroscopy from a continuous radiological analysis (Three Mile Island water compositor. Nuclear Station) Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Surface Tritium Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2010 Tritium and carbon-14 analysis by liquid Water from a continuous radiological analysis (Three Mile Island scintillation water compositor. Nuclear Station)

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

Surface Iodine-131 Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2012 Radioiodine in various matrices Water from a continuous radiological analysis (Three Mile Island water compositor. Nuclear Station) Env. Inc., 1-131-01 Determination of 1-131 in milk by anion exchange Drinking Gross Beta Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2008 Gross alpha and/or gross beta activity in Water from a continuous radiological analysis (Three Mile Island various matrices water compositor. Nuclear Station)

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

Drinking Gamma Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2007 Gamma emitting radioisotope analysis Water Spectroscopy from a continuous radiological analysis (Three Mile Island water compositor. Nuclear Station) Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Drinking Tritium Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2010 Tritium and carbon-14 analysis by liquid Water from a continuous radiological analysis (Three Mile Island scintillation water compositor. Nuclear Station)

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

Drinking Iodine-131 Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2012 Radioiodine in various matrices Water from a continuous radiological analysis (Three Mile Island water compositor. Nuclear Station) Env. Inc., 1-131-01 Determination of 1-131 in milk by an ion exchange Effluent Iodine-131 Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2012 Radioiodine in various matrices Water from a continuous radiological analysis (Three Mile Island water compositor. Nuclear Station) Env. Inc., 1-131-01 Determination of 1-131 in milk by an ion exchange Effluent Gross Beta Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2008 Gross alpha and/or gross beta activity in Water from a continuous radiological analysis (Three Mile Island various matrices water compositor. Nuclear Station)

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

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Three Mile Island Nuclear Station, 2013 Sample Analysis Sampling Method Collection Procedure Number Sample Size Analytical Procedure Number Medium Effluent Gamma Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2007 Gamma emitting radioisotope analysis Water Spectroscopy from a continuous radiological analysis (Three Mile Island water compositor. Nuclear Station) Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Effluent Tritium Monthly composite ER-TMI-06 Collection of water samples for 2 gallon TBE, TBE-2010 Tritium and carbon-14 analysis by liquid Water from a continuous radiological analysis (Three Mile Island scintillation water compositor. Nuclear Station)

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

Effluent Strontium- Semi-annual TBE, TBE-2023 Compositing of samples 2 gallon TBE, TBE-2019 Radiostrontium analysis by ion exchange Water 89/90 composite from monthly samples.

Storm Gamma Quarterly composite ER-TMI-06 Collection of water samples for 1 gallon TBE, TBE-2007 Gamma emitting radioisotope analysis Water Spectroscopy of monthly grab radiological analysis (Three Mile Island samples Nuclear Station) Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy w Storm Tritium Quarterly composite ER-TMI-06 Collection of water samples for 1 gallon TBE, TBE-2010 Tritium and carbon-14 analysis by liquid Water of monthly grab radiological analysis (Three Mile Island scintillation samples Nuclear Station)

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

Fish Gamma Semi-annual samples ER-TMI-13 Collection of fish samples for 1000 grams (wet) TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy collected via radiological analysis (Three Mile Island electroshocking or Nuclear Station) Env. Inc., GS-01 Determination of gamma emitters by other techniques gamma spectroscopy Fish Strontium-90 Semi-annual samples ER-TMI-13 Collection of fish samples for 1000 grams (wet) TBE, TBE-2019 Radiostrontium analysis by ion exchange collected via radiological analysis (Three Mile Island electroshocking or Nuclear Station) Env. Inc., SR-05, Determination of Sr-89 and Sr-90 in other techniques Ashed Samples

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Three Mile Island Nuclear Station, 2013 Sample Analysis Sampling Collection Procedure Number Sample Size Analytical Procedure Number Medium Method Sediment Gamma Semi-annual grab ER-TMI-03 Collection of sediment samples for 500 grams (dry) TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy samples radiological analysis (Three Mile Island Nuclear Station) Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Air Gross Beta One-week ER-TMI-14 Collection of air particulate and air 1 filter TBE, TBE-2008 Gross alpha and/or gross beta activity in Particulates composite of iodine samples for radiological analysis (Three (approximately various matrices continuous air Mile Island Nuclear Station) 280 cubic sampling through meters weekly) Env. Inc., AP-02 Determination of gross alpha and/or gross glass fiber filter beta in air particulate filters paper Air Gamma Quarterly composite TBE, TBE-2023 Compositing of samples 13 filters TBE, TBE-2007 Gamma emitting radioisotope analysis Particulates Spectroscopy of each station (approximately Env. Inc., AP-03 Procedure for compositing air 3600 cubic Env. Inc., GS-01 Determination of gamma emitters by particulate filters for gamma spectroscopic meters) gamma spectroscopy analysis Air Iodine Gamma One-week ER-TMI-14 Collection of air particulate and air 1 filter TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy composite of iodine samples for radiological analysis (Three (approximately continuous air Mile Island Nuclear Station) 280 cubic Env. Inc., 1-131-02 Determination of 1-131 in charcoal sampling through meters weekly) canisters by gamma spectroscopy (batch method) charcoal filter Milk 1-131 Bi-weekly grab ER-TMI-01 Collection of milk samples for 2 gallon TBE, TBE-2012 Radioiodine in various matrices sample when cows radiological analysis (Three Mile Island Nuclear are on pasture. Station) Env. Inc., 1-131-01 Determination of 1-131 in milk by anion Monthly all other exchange times Milk Strontium- Quarterly composite ER-TMI-01 Collection of milk samples for 2 gallon TBE, TBE-2019 Radiostrontium analysis by ion exchange 89/90 of Bi-weekly and radiological analysis (Three Mile Island Nuclear monthly grab Station) Enc. Inc., SR-07, Determination of Sr-89 and Sr-90 in Milk samples (Ion Exchange Batch Method)

TBE, TBE-2023 Compositing of samples Milk Gamma Bi-weekly grab ER-TMI-01 Collection of milk samples for 2 gallon TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy sample when cows radiological analysis (Three Mile Island Nuclear are on pasture. Station) Env. Inc., GS-01 Determination of gamma emitters by Monthly all other gamma spectroscopy times Vegetation Gamma Monthly and annual ER-TMI-04 Collection of vegetation samples for 1000 grams TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy grab sample radiological analysis (Three Mile Island Nuclear Station) Env. Inc., GS-01 Determination of gamma emitters by I_ I I gamma spectroscopy

TABLE B-3: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Three Mile Island Nuclear Station, 2013 Sample Analysis Sampling Collection Procedure Number Sample Size Analytical Procedure Number Medium Method Vegetation Strontium- Monthly and annual ER-TMI-04 Collection of vegetation samples for 1000 grams TBE, TBE-2019 Radiostrontium analysis by ion exchange 89/90 grab sample radiological analysis (Three Mile Island Nuclear Station) Env. Inc., SR-05, Determination of Sr-89 and Sr-90 in Ashed Samples OSLD Optically Quarterly OSLDs ER-TMI-02 Collection of OSLD samples for 2 badges with 3 Landauer Incorporated Stimulated comprised of two radiological analysis (Three Mile Island Nuclear dosimeters Luminescence A120 3:C Landauer Station)

Dosimetry Incorporated elements.

0

AL Figure B-1 Environmental Sampling Locations Within One Mile of the Three Mile Island Nuclear Station, 2013 B-9

Figure B-2 Environmental Sampling Locations Between One and Five Miles of the Three Mile Island Nuclear Station, 2013 B-10

Figure B-3 Environmental Sampling Locations Greater than Five Miles of the Three Mile Island Nuclear Station, 2013 B-11

Intentionally left blank APPENDIX C DATA TABLES AND FIGURES -

PRIMARY LABORATORY

Intentionally left blank Table C-I.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION J1-2 Q9-1 PERIOD 12/31/12 01/29/13 735 +/- 143 < 169 01/29/13 02/26/13 935 +/- 158 (1) < 166 02/26/13 04/02/13 1180 +/- 171 < 161 (1) 04/02/13 04/30/13 1500 +/- 203 < 169 04/30/13 05/28/13 1890 +/- 242 < 178 05/28/13 07/02/13 1220 +/- 185 < 194 07/02/13 07/30/13 5580 +/- 597 < 180 07/30/13 09/03/13 955 +/- 167 < 186 09/03/13 10/01/13 2730 +/- 314 < 164 10/01/13 10/29/13 3520 +/- 401 < 197 10/29/13 12/03/13 < 172 < 172 12/03/13 12/31/13 < 178 < 166 MEAN 2025 +/- 3057 -

Table C-1.2 CONCENTRATIONS OF 1-131 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION A3-2 PERIOD 01/08/13 01/29/13 < 0.5 02/05/13 02/26/13 1.1 +/- 0.6 03/05/13 04/02/13 < 0.8 04/09/13 04/30/13 < 0.9 05/07/13 05/28/13 < 0.8 06/03/13 07/02/13 < 0.7 07/09/13 07/30/13 < 0.6 08/07/13 09/03/13 < 0.6 09/10/13 10/01/13 < 0.7 10/08/13 10/29/13 < 0.6 11/05/13 12/03/13 < 0.7 12/10/13 12/31/13 < 0.8 MEAN THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1

Table C-1.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 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 J1-2 12/31/12 -01/29/13 < 5 < 6 < 9 < 7 < 9 < 7 < 11 < 5 < 7 < 29 < 9 01/29/13 -02/26/13 (1) < 4 <4 < 8 < 3 < 7 <3 < 7 < 3 < 4 <20 < 6 02/26/13 -04/02/13 < 4 < 4 < 10 < 5 < 8 <5 < 7 < 4 < 5 < 23 < 8 04/02/13 -04/30/13 < 6 < 6 < 13 < 5 < 11 <6 < 10 < 6 < 6 < 25 < 8 04/30/13 -05/28/13 < 6 < 6 < 12 < 5 < 9 <5 < 8 < 5 < 6 < 25 < 7 05/28/13 -07/02/13 < 4 < 4 < 10 < 5 < 9 < 4 < 9 < 4 < 5 < 24 < 8 07/02/13 -07/30/13 < 6 < 5 < 12 < 7 < 11 < 7 < 12 < 5 < 6 < 35 < 11 07/30/13 -09/03/13 < 5 < 4 < 11 < 6 < 12 <6 < 9 < 5 < 6 < 34 < 11 09/03/13 -10/01/13 < 7 < 7 < 15 < 8 < 17 < 7 < 14 < 6 < 8 < 30 < 12 10/01/13 -10/29/13 < 5 < 5 < 12 < 6 < 12 <6 < 11 < 5 < 6 < 30 < 7 10/29/13 -12/03/13 < 7 < 6 < 11 < 5 < 11 < 7 < 10 < 5 < 6 < 27 < 13 12/03/13 - 12/31/13 < 4 < 3 < 9 < 4 < 8 < 3 < 8 < 3 < 4 < 28 < 11 MEAN - - - - - - - - -

Q9-1 12/31/12 - 01/29/13 < 5 < 5 < 12 < 7 < 12 < 6 < 11 < 6 < 6 < 27 < 9 01/29/13 -02/26/13 < 4 < 4 < 8 < 4 < 9 < 5 < 8 < 4 < 5 < 21 < 8 02126113 -04/02/13 (1) < 5 < 5 < 10 < 5 < 10 < 5 < 9 <4 < 5 < 22 <8 04/02/13 - 04/30/13 < 7 < 6 < 15 < 6 < 10 < 7 < 11 <6 < 7 < 34 < 13 04/3013 -05/28/13 < 6 < 5 < 10 < 5 < 9 < 5 < 9 < 5 < 5 < 26 < 9 05/28/13 -07/02/13 < 5 < 5 < 11 < 4 < 10 < 4 < 9 < 5 < 6 < 27 < 8 07/02/13 -07130113 < 5 < 5 < 10 < 5 < 10 < 5 < 11 < 5 < 5 < 29 < 9 07/30/13 -09/03/13 < 6 < 6 < 13 < 5 < 7 < 5 < 10 < 5 < 5 < 28 < 7 09/03/13 -10/01/13 < 6 < 7 < 13 < 4 < 12 < 6 < 10 < 5 < 7 < 32 < 11 10/01/13 -10/29/13 < 7 < 6 < 11 < 6 < 13 < 7 < 11 < 5 < 7 < 33 < 11 10/29/13 - 12/03/13 < 6 < 6 < 10 < 8 < 14 < 7 < 13 < 6 < 6 < 35 < 11 12/03/13 - 12/31/13 < 4 < 4 < 8 < 4 < 8 < 4 < 6 < 3 < 4 < 26 < 9 MEAN - - - - - - - - - -

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-I1.1 CONCENTRATIONS OF GROSS BETA IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION G15-2 G15-3 Q9-1 PERIOD 12/31/12 - 01/29/13 2.3 +/- 1.4 < 2.1 < 2.0 01/29/13 - 02/26/13 1.8 +/- 1.1 < 1.5 < 1.5 02/26/13 - 04/02/13 3.3 +/- 1.1 < 1.5 < 1.6 04/02/13 - 04/30/13 3.0 +/- 1.1 1.9 +/- 0.9 1.7 +/- 0.9 04/30/13 - 05/28/13 < 2.1 < 2.0 < 2.0 05/28/13 - 07/02/13 2.0 +/- 1.0 (1) 1.8 +/- 1.0 2.3 +/- 0.9 07/02/13 - 07/30/13 3.4 +/- 1.3 2.2 +/- 1.2 (1) < 1.8 07/30/13 - 09/03/13 3.8 +/- 1.1 2.8 +/- 1.0 (1) 2.6 +/- 1.0 09/03/13 - 10101/13 3.5 +/- 1.0 3.3 +/- 1.0 2.7 +/- 1.0 10/01/13 - 10/29/13 2.5 +/- 1.1 2.7 +/- 1.1 2.6 +/- 1.0 10/29/13 - 12/03/13 5.1 +/- 1.1 4.5 +/- 1.1 2.9 +/- 1.0 12/03/13 - 12/31/13 5.2 +/- 1.9 < 2.4 < 2.3 MEAN 3.3 +/- 2.2 2.7 +/- 1.9 2.4 +/- 0.8 Table C-11.2 CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA COLLECTION G15-2 G15-3 Q9-1 PERIOD 1/31/12 - u11/913 < .. 6 < 0.6 < 0.5 01/29/13 - 02/26/13 < 0.6 < 0.6 < 0.6 02/26/13 - 04/02/13 < 0.7 < 0.6 < 0.6 04/02/13 - 04/30/13 < 0.6 < 0.6 < 0.9 04/30/13 - 05/28/13 < 0.5 < 0.7 < 0.5 05/28/13 - 07/02/13 < 0.7 (1) < 0.9 < 0.8 07/02/13 - 07/30/13 < 0.8 < 0.6 (1) < 0.7 07/30/13 - 09/03/13 < 0.7 < 0.7 (1) < 0.7 09/03/13 - 10/01/13 < 0.7 < 0.9 < 0.8 10/01/13 - 10/29/13 < 0.8 < 0.7 < 0.7 10/29/13 - 12/03/13 < 0.6 < 0.7 < 0.6 12/03/13 - 12/31/13 < 0.5 < 0.8 < 0.8 MEAN - - -

Table C-II.3 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION G15-2 G15-3 Q9-1 PERIOD 12/31/12 - 01/29/13 < 166 < 174 < 171 01/29/13 - 02/26/13 < 183 < 153 < 166 02/26/13 - 04/02/13 < 172 < 163 < 157 04/02/13 - 04/30/13 < 169 < 167 < 166 04/30/13 - 05/28/13 < 174 < 175 < 172 05/28/13 - 07/02/13 < 192 (1) < 193 < 193 07/02/13 - 07/30/13 < 179 537 +/- 144 (1) < 182 07/30/13 - 09/03/13 < 188 < 187 (1) < 190 09/03/13 - 10/01/13 < 172 < 184 < 171 10/01/13 - 10/29/13 < 200 386 +/- 141 < 193 10/29/13 - 12/03/13 < 171 < 172 < 168 12/03/13 - 12/31/13 < 176 < 180 < 172 MEAN - 462 +/- 214 -

THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-3

Table C-II.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 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 G15-2 12/31/12 - 01/291'13 <6 <6 < 12 <5 < 12 <6 < 12 <5 <6 < 25 <8 01/29/13 - 02/261'13 <4 <4 <9 <5 <8 <5 <8 <4 <5

23 <6 02/26/13 - 04/021'13 <3 <3 <5 <3 <6 <4 <6 <3 <3 < 16 <5 04/02/13 - 04/301'13 <5 <6 < 13 <6 <9 <6 < 11 <5 <6 < 27 <9 04/30/13 - 05128/ '13 <4 <4 < 10 <5 <8 <4 <9 <4 <5 < 21 <8 05/28/13 - 07/021'13 (1) < 9 <9 < 18 <9 < 21 <9 < 16 < 10 <8 < 43 < 13 07/02/13 - 07/301'13 <6 <5 < 10 <5 < 11 <6 <9 <5 <5 < 32 <11 07/30/13 - 09/03/'13 <7 <6 < 13 <5 < 11 <6 < 11 <5 <6 < 35 < 10 09/03/13 - 10/01/ '13 <6 <6 < 14 <6 < 13 <6 <9 <6 <7 < 35 < 12 10/01/13 - 10/291'13 <5 <5 < 14 <8 < 15 <7 < 10 <6 <8 < 31 < 10 10/29/13 - 12/031'13 <6 <6 < 11 <6 < 11 <6 <9 <6 <7 < 29 < 13 12/03/13 - 12/31/ '13 <4 <4 <8 <3 <7 <4 <7 <3 <4 < 28 <8 MEAN G15-3 12/31/12 - 01/29/13 <6 <5 < 12 <4 <8 <6 < 10 <5 <6 < 32 6 01/29/13 - 02/26/13 <4 <4 <9 <5 <9 <4 <7 <3 <4

21 7 02/26/13 - 04/02/13 <5 <5 < 10 <5 < 10 <5 <9 <4 <4 < 27 8 04/02/13 - 04/30/13 <6 <7 < 13 <8 < 12 <6 < 11 <6 <7 < 31 12 04/30/13 - 05/28/13 <5 <5 < 11 <6 < 13 <7 <9 <5 <7 < 24 7 05/28/13 - 07/02/13 <5 <6 < 12 <6 < 12 <6 < 10 <7 <6 < 30 9 07/02/13 - 07/30/13 (1) <4 <4 < 12 <5 < 10 <5 <9 <5 <5 < 39 11 07/30/13 - 09103113 (1) <6 <5 <15 <7 14

< <6 < 13 <6 <6 < 33 11 09/03/13 - 10/01/13 <5 <5 < 13 <6 <9 <6 < 10 <6 <6 <34 11 10/01/13 - 10/29/13 <6 <5 < 12 <6 < 10 <5 <9 <6 <7 < 30 9 10129113 - 12103/13 <6 <6 < 14 <7 < 15 <8 < 12 <6 <6 < 34 11 12/03/13 - 12/31/13 <4 <4 <9 <4 <9 <5 <8 <4 <5 < 29 9 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-11.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 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 Q9-1 12/31/12 01/29/13 <5 <5 <9 <5 <9 <5 <8 <4 <5 < 24 <7 01/29/13 02/26/13 <4 <4 <9 <5 <8 <4 <8 <4 <5 < 20 <6 02/26/13 04/02/13 <4 <4 <9 <4 < 10 <5 <7 <4 <5 < 23 <8 04/02/13 04/30/13 <4 <5 <9 <4 < 11 <5 <8 <4 <5 < 21 < 11 04/30/13 05/28/13 <5 <5 <11 <5 < 10 <4 <8 <5 <5 < 25 <9 05/28/13 07/02/13 <5 <7 <11 <6 < 13 <6 <9 <6 <6 < 25 <4 07/02/13 07/30/13 <5 <6 < 13 <5 < 14 <5 < 12 <5 <6 < 28 < 11 07/30/13 09/03/13 <6 <6 < 11 <7 < 11 <5 < 10 <5 <6 < 31 <8 09/03/13 10/01/13 <6 <5 < 11 <6 <9 <6 <9 <5 <6 < 32 < 11 10/01/13 10/29/13 <5 <5 < 10 <5 < 10 <6 < 10 <7 <6 < 29 < 10 10/29/13 12/03/13 <6 <7 < 15 <6 < 15 <7 < 11 <7 <6 < 36 <7 12/03/13 - 12/31/13 <4 <4 <9 <4 <8 <4 <7 <4 <5 <29 <9 MEAN

Table C-II.1 CONCENTRATIONS OF GROSS BETA, IODINE-131, TRITIUM, AND STRONTIUM IN EFFLUENT WATER SAMPLES FOR STATION KI-1 COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION GR-B 1-131 H-3 SR-89 SR-90 PERIOD K1-1 12/31/12 - 01/29/13 3.5 +/- 1.5 < 0.5 4060 +/- 454 12131/12 - 07/02/13 < 3.2 < 0.8 01/29/13 - 02/26/13 3.0 +/- 1.1 < 0.5 4980 +/- 545 02/26/13 - 04/02/13 2.9 +/- 1.2 < 0.8 4680 +/- 510 04/02/13 - 04/30/13 3.7 +/- 1.1 < 0.8 15600 +/- 1610 04/30/13 - 05/28/13 3.0 +/- 1.5 < 0.7 28000 +/- 2840 05/28/13 - 07/02/13 6.4 +/- 1.3 < 0.9 12900 +/- 1330 07/02/13 - 07/30/13 7.0 +/- 1.6 < 0.6 97000 +/- 7060 07/02/13 - 12/31/13 < 3.4 < 0.6 08/07/13 - 09/03/13 6.0 +/- 1.6 < 0.7 7840 +/- 838 09/03/13 - 10/01/13 5.0 +/- 1.3 < 0.7 30800 +/- 3110 10/01/13 - 10/29/13 6.2 +/- 1.3 < 0.7 23700 +/- 2410 10/29/13 - 12/03/13 4.2 +/- 1.1 < 0.7 645 +/- 138 12/03/13 - 12/31/13 6.5 +/- 2.0 < 0.7 < 177 MEAN 4.8 +/- 3.1 20928 +/- 54481 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-6

Table C-III.2 CONCENTRATIONS OF GAMMA EMITTERS IN EFFLUENT WATER SAMPLES COLLECTED INTHE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 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 K1-1 12/31/12 01/29/13 <6 <6 < 13 <5 < 10 <7 < 10 <6 <6 < 30 <9 01/29/13 02/26/13 <4 <4 <8 <3 <9 <4 <7 <4 <4 < 17 <7 02/26/13 04/02/13 <3 <3 <8 <3 <7 <4 <6 <3 <3 < 16 <4 04/02/13 04/30/13 <4 <5 < 11 <6 < 14 <5 < 10 <5 <6 < 24 < 10 04/30/13 05/28/13 <6 <6 <9 <5 < 11 <5 < 10 <5 <5 < 23 <9 05/28/13 07/02/13 <5 <5 < 11 <5 <9 <6 < 10 <5 <5 < 24 <6 07/02/13 07/30/13 <3 <4 <9 <3 <8 <4 <6 <3 <3 < 21 <9 08/07/13 09/03/13 <4 <5 <8 <4 <7 <4 <6 <4 <4 < 27 < 10 09/03/13 10/01/13 <6 <6 < 10 <6 < 11 <5 < 10 <5 <5 < 27 < 10 10/01/13 10/29/13 <8 <9 < 19 <8 < 14 <8 < 12 <7 <8 < 37 < 10 10/29/13 12/03/13 <6 <5 < 11 <7 < 11 <6 < 11 <7 <6 < 35 < 12 12/03/13 12/31/13 <4 <4 < 10 <5 <9 <5 <8 <4 <4 < 31 < 11 MEAN

Table C-IV.1 CONCENTRATIONS OF STRONTIUM IN PREDATOR AND BOTTOM FEEDER (FISH) SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Sr-90 PERIOD INDP PREDATOR 06/07113 < 2.9 09/24/13 < 2.9 MEAN INDB BOTTOM FEEDER 06/07/13 < 3.2 09/24/13 < 4.0 MEAN BKGP PREDATOR 06/11/13 < 3.0 09/25/13 < 2.3 MEAN BKGB BOTTOM FEEDER 06/11/13 < 2.8 09/25/13 < 2.8 MEAN C-8

Table C-IV.2 CONCENTRATIONS OF GAMMA EMITTERS IN PREDATOR AND BOTTOM FEEDER (FISH)

SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 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 BKGB BOTTOM FEEDER 06/11/13 3846 +/- 904 < 54 < 53 < 106 < 54 < 109 < 54 < 53 09/25/13 3492 +/- 777 < 46 < 48 < 142 < 54 < 95 < 47 < 48 MEAN 3669 +/- 501 BKGP PREDATOR 06/11/13 2982 +/- 962 < 54 < 57 < 123 < 52 < 88 < 50 < 60 09/25113 5278 +/- 737 < 48 < 58 < 128 < 55 < 100 <44 < 51 MEAN 4130 +/- 3247 -

INDB BOTTOM FEEDER r) 06/07/13 3676 +/- 871 < 63 < 65 < 127 < 63 < 117 < 60 < 66 09/24/13 2924 +/- 709 < 46 < 49 < 118 < 46 < 100 < 43 < 40 MEAN 3300 +/- 1063 INDP PREDATOR 06/07/13 3349 +/- 681 < 38 < 47 < 91 < 53 < 102 < 40 < 54 09/24/13 3826 +/- 868 < 53 < 50 < 142 < 46 < 123 < 44 < 55 MEAN 3588 +/- 675

Table C-V.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLEI ##

IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/KG DRY +/- 2 SIGMA SITE COLLECTION K-40 Mn-54 Co-58 Co-60 Cs-134 Cs-137 PERIOD A1-3 06/14/13 13750 +/- 1261 < 66 < 62 < 64 < 65 < 81 10/30/13 18080 +/- 2233 < 98 < 99 < 107 < 84 < 128 MEAN 15915 +/- 6124 - - - - -

EDCB 10/30/13 18710 +/- 1836 < 77 < 87 < 99 < 77 202 +/- 114 MEAN J2-1 06/14/13 17790 +/- 1717 < 88 < 65 < 89 < 70 < 94 10/30/13 19290 +/- 1785

88 < 85 < 107 < 88 < 93 MEAN 18540 +/- 2121 K1-3 06/14/13 8026 +/- 1000 < 52 < 53 < 59 < 49 < 71 10/30/13 9084 +/- 1317 < 72 < 88 < 76 < 71 < 90 MEAN 8555 +/- 1496 C-I0

Table C-VI.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION. 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I I GROUP 11 IGROUP III PERIOD E1-2 t-1-.j A3-1 G,2-1 1-3-1 M2-1 015-1 01/02/13 -01/09/13 38 +/- 6 38 +/- 6 41 +/- 6 40 +/- 42 +/- 6 48 +/- 7 44 +/- 6 01/09/13 -01/17/13 27 +/- 6 21 +/- 5 19 +/- 5 21 +/- 20 +/- 5 23 +/- 5 23 +/- 5 01/17/13 -01/24/13 23 +/- 6 22 +/-5 21 +/- 5 17 +/- 18 +/- 5 19 +/- 5 17 +/- 5 01/24/13 -01/31/13 20 +/- 6 19 +/-5 26 +/- 6 20 +/- 17 +/- 5 18 +/- 5 21 +/- 5 01/31/13 -02/07/13 21 +/- 6 28 +/-6 26 +/- 6 23 +/- 26 +/- 6 22 +/- 6 24 +/-9 (1) 02/07/13 -02/15/13 19 +/- 5 18 +/-5 15 +/- 4 15 +/- 17 +/- 5 20 +/- 5 17 +/- 4 02/15/13 -02/21/13 18 +/- 6 11 +/-5 17 +/- 5 16 +/- 15 +/- 5 13 +/- 5 27 +/- 6 02/21/13 -02/27/13 < 10 <9 <9 <9 10 +/- 6 <9 <9 02/27/13 -03/07/13 8+/- 4 7+/-4 10 +/- 4 9 +/- 12 +/- 5 6+/-4 < 10 (1) 03/07/13 -03/14/13 <8 8+/-5 13 +/- 5 10 +/- 11 +/-5 13 +/-6 8+/-5 03/14/13 -03/21/13 11 +/-5 17 5 20 +/- 5 13 + 20 +/-5 11 +/-5 19 +/-6 (1) 03/21/13 -03/28/13 9 +/-5 9+/-4 8+/-4 9 +/- 8+/-4 8+/-4 8+/-4 03/28/13 -04/04/13 11 +/-5 14 +/-5 13 +/-5 (1) 11 +/- 14 +/-5 14 +/-5 14 +/-5 04/04/13 -04/11/13 15 +/-5 18 +/-5 20 +/-5 15 +/- 17 +/-5 16 +/- 5 17 +/-5 04/11/13 -04/17/13 17 +/-6 10 +/-5 14 +/-6 <8 18 +/-6 18 +/- 6 18 +/-6 04/17/13 -04/25/13 9 +/-4 15 +/-5 13 +/-5 (1) 10 +/- 13 +/-5 14 +/- 4 13 +/-4 04/25/13 -05/02/13 13 +/-5 15 +/-5 14 +/-5 (1) 19 +/- 23 +/-6 21 +/- 6 21 +/-14 (1) 05/02/13 -05/09/13 <7 7+/-4 9+/-5 (1) 10 +/- 8+/-5 8+/-5 <6 05/09/13 -05/16/13 10 +/-5 15 +/-5 16 +/-5 14 + 15 +/-6 13 +/-5 16 +/- 5 05/16/13 -05/23/13 9 +/-5 13 +/- 5 15 +/-5 (1) 15 +/- 13 +/-5 22 +/-6 13 +/- 5 05/23/13 -05/30/13 18 +/-5 19 +/- 5 17 +/-5 (1) 17 +/- 20 +/-5 14 +/-5 14 +/- 5 05/30/13 -06/06/13 17 +/-6 12 +/- 5 13 +/- 5 12 +/- 17 +/-6 06/06/13 -06/12/13 10 +/-6 <8 14 +/- 6 <8 8+/-5 <8 11 +/-6 06/12/13 -06/20/13 15 +/-4 15 +/- 4 19 +/- 4 20 21 +/-5 16 +/- 4 9+/-5 (1) 06/20/13 -06/26/13 17 +/-6 18 +/- 6 17 +/- 5 19 16 +/-6 20 +/- 6 06/26/13 -07/04/13 7 +/-4 10 +/- 4 7+/-4 14 9+/-4 10 +/- 4 12 +/-4 07/04/13 -07/10/13 18 1+/-6 10 +/- 5 13 +/-5 12 10 +/-5 21 +/- 6 12 +/-5 07/10/13 -07/18/13 13 +/-4 17 +/- 4 16 +/-4 17 19 +/-5 20 +/- 5 14 +/-4 07/18/13 -07/25/13 15 +/-5 17 +/- 5 15 +/-5 17 15 +/-5 15 +/- 5 15 +/- 5 07/25/13 -08/01/13 8 +/-4 19 +/-5 16 +/-5 13 15 +/-5 16 +/- 5 16 +/- 5 08/01/13 -08/08/13 15 +/-4 21 +/-5 24 +/-5 20 20 +/-5 18 +/- 5 18 +/- 5 08/08/13 -08/15/13 15 +/-5 16 +/-5 18 +/-5 14 24 +/-6 15 +/- 5 19 +/-5 08/15/13 -08/21/13 17 +/-6 13 +/-6 11 +/-6 13 9+/-6 14 +/- 6 20 +/-6 08/21/13 -08/29/13 18 +/-5 25 +/-5 28 +/-5 24 22 +/-5 27 +/- 5 18 +/-5 08/29/13 -09/05/13 9 +/-5 17 +/-6 21 +/-6 21 20 +/-6 21 +/- 6 17 +/-6 09/05/13 -09/12/13 15 +/-5 20 +/-6 19 +/-5 21 28 +/-6 22 +/- 6 18 +/-6 09/12/13 -09/19/13 14 +/-5 14 +/-5 15 +/-5 11 17 +/- 5 16 +/-t 5 11 +/-5 09/19/13 -09/25/13 <9 11 +/-6 11 +/-6 11 12 +/- 6 10 +/- 6 13 +/-6 09/25/13 -10/02/13 17 +/- 14 +/-5 18 +/-5 17 +/- 6 19 +/- 6 20 +/-6 10/02/13 -10/10/13 28 +/- 25 +/-5 26 +/-5 27 +/- 5 28 +/- 5 27 +/-5 10/10/13 -10/17/13 14 +/- 14 +/-5 21 +/-5 15 18 +/- 5 19 +/- 5 19 +/-5 10/17/13 -10/24/13 19 +/- 16 +/-5 14 +/-5 14 18 +/- 6 15 +/- 5 16 +/-5 10/24/13 -10/31/13 18 +/- 14 +/-5 26 +/-6 19 16 +/- 5 20 +/- 5 20 +/-5 10/31/13 -11/07/13 14 +/- 11 +/-5 15 +/-5 17 12 +/- 5 18 +/- 5 16 +/-5 11/07/13 -11/14/13 9 +/- 13 +/- 5 16 +/-5 15 14 +/- 5 12 +/- 5 14 +/-5 11/14/13 -11/21/13 17 +/- 18 +/- 5 15 +/-5 16 20 +/- 5 18 +/- 5 20 +/-5 11/21/13 -11/27/13 11 +/- 16 +/- 5 17 +/-6 14 12 +/- 5 12 +/- 5 15 +/-6 11/27/13 -12/05/13 32 +/- 32 +/- 5 35 +/- 6 29 30 +/- 5 31 +/- 6 35 +/-6 12/05/13 -12/11/13 .17 +/- 20 +/- 6 13 +/- 6 14 14 +/- 6 15 +/- 6 16 +/- 6 12/11/13 -12/19/13 19 +/- 26 +/- 5 26 +/- 5 29 29 +/- 5 24 +/- 5 24 +/-5 12/19/13 -12/26/13 20 +/- 17 +/- 5 20 +/- 5 13 19 +/- 6 17 +/- 5 16 +/- 5 12/26/13 -01/02/14 18 +/- 17 +/- 5 21 +/- 5 21 18 +/- 5 20 +/- 5 24 +/-6 MEAN 16 +/- 12 17 +/-12 18 +/-13 17 +/- 12 17 +/-13 18 +/-13 18 +/-13 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-1lI

Table C-VI.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA GROUP I - CLOSEST TO THE SITE BOUNDARY GROUP II - INTERMEDIATE OFFSITE GROUP III - CONTROL LOCATIONS COLLECTION MIN MAX MEAN + COLLECTION MIN MAX MEAN + COLLECTION MIN MAX MEAN+

PERIOD 2SD PERIOD 2SD PERIOD 2SD 01/02/13 - 01/31/13 19 38 26 +/- 15 U1/U2/13 - 01/31i13 17 48 26 +/- 21 01/02/13 - 01/31/13 17 44 26 +/- 24 01/31/13 - 02/21/13 11 28 19 + 11 01/31/13 02/27/13 10 26 18 +/- 10 01/31/13 02/21/13 17 27 22 +/- 10 02/27/13 - 04/04/13 7 17 10 +/-6 02/27/13 04/04/13 6 20 12 +/- 7 03/07/13 04/04/13 8 19 12 +/- 11 04/04/13 - 05/02/13 9 18 14 +6 04/04/13 05/02/13 10 23 16 +/- 7 04/04/13 05/02/13 13 21 17 +/- 7 05/02/13 - 05/30/13 7 19 13 +9 05/02/13 05/30/13 8 22 14 +/- 8 05/09/13 05/30/13 13 16 14 +/- 3 05/30/13 - 07/04/13 7 18 13 +/-8 05/30/13 07/04/13 7 21 15 9 06/06/13 07/04/13 9 12 11 +/- 3 07/04/13 - 08/01/13 8 19 15 +/-8 07/04/13 08/01/13 10 21 16 6 07/04/13 08/01/13 12 16 14 3 08/01/13 - 08/29/13 13 25 17 +/-8 08/01/13 08/29/13 9 28 19 +/- 11 08/01/13 08/29/13 18 20 19 1 08/29/13 - 10/02/13 9 20 15 +6 08/29/13 10/02/13 10 28 17 9 08/29/13 10/02/13 11 20 16 7 10/02/13 - 10/31/13 14 28 18 +/- 10 10/02/13 10/31/13 14 28 20 +/- 10 10/02/13 10/31/13 16 27 20 +/- 9 10/31/13 - 11/27/13 9 18 14 +/-6 10/31/13 11/27/13 12 20 15 5 10/31/13 11/27/13 14 20 16 +/- 5 t'J 11/27/13 - 01/02/14 17 32 22 +/- 12 11/27/13 01/02/14 13 35 22 + 14 11/27/13 01/02/14 16 35 23 16 01102/13 - 01/02/14 7 38 16 +/- 12 01/02/13 - 01/02/14 6 48 17 +/- 13 01/02/13 - 01/02/14 8 44 18 +/- 13

Table C-VI.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA SITE COLLECTION Be-7 Mn-54 Co-58 Co-60 Nb-95 Zr-95 Cs-134 Cs-137 PERIOD A3-1 01/02/13 - 04/04/13 74 1 24 <2 <3 <2 <3 <7 <2 <2 03/28/13 - 06/26113 94 +/- 32 <3 <2 <3 <4 <7 <3 <3 06/26/13 - 10/02/13 70 + 24 <2 <2 <2 <3 <5 <2 <1 10/02/13 - 01/02/14 73 +/- 24 <2 <3 <1 <3 <5 <2 <2 MEAN 78 +/- 22 E1-2 01/02/13 - 04/04/13 59 +/- 25 <3 <4 <2 <4 <6 <2 <2 03/28/13 - 06/26/13 83 +/- 35 <3 <4 <3 <5 <6 <3 <3 06/26/13 - 10/02/13 53 +/- 21 <2 <3 <2 <4 <7 <2 <3 10/02/13 - 01/02/14 61 + 25 <4 <5 <4 <4 <9 <3 <3 MEAN 64 +/- 26 F1-3 01/02/13 - 04/04/13 59 +/- 19 <2 <2 <2 <3 <6 <3 <2 03/28/13 - 06/26/13 118 +/- 32 <3 <4 <3 <5 <8 <4 <3 06/26/13 - 10/02/13 59 +/- 27 <3 <2 <2 <3 <6 <3 <2 10/02/13 - 01/02/14 70 +/- 24 <5 <5 <5 <5 <9 <4 <4 MEAN 76 +/- 57 G2-1 01/02/13 - 04/04/13 65 +/- 23 <2 <3 <1 <4 <6 <3 <1 03/28/13 - 06/26/13 79 +/- 39 <4 <5 <4 <5 < 10 <5 <5 06/26113 - 10/02/13 51 +/- 18 <2 <3 <3 <3 <5 <3 <2 10/10/13 - 01/02/14 74 +/- 26 <3 <3 <3 <4 <8 <3 <3 MEAN 67 +/- 25 H3-1 01/02/13 - 04/04/13 66 +/- 38 <4 <5 <5 <6 < 10 <5 <5 03/28/13 - 06/26/13 85 +/- 39 <3 <3 <2 <5 <7 <3 <3 06/26/13 - 10/02/13 63 +/- 22 <2 <3 <3 <4 <5 <3 <3 10/02/13 - 01/02/14 74 +/- 24 <3 <3 <2 <4 <6 <2 <2 MEAN 72 +/- 19 M2-1 01/02/13 - 04/04/13 74 +/- 35 <3 <4 <3 <4 <8 <3 <3 03/28/13 - 06/26/13 85 +/- 23 <3 <3 <1 <3 <5 <3 <2 06/26/13 - 10/02/13 55 +/- 27 <2 <3 <3 <4 <7 <3 <3 10/02/13 - 01/02/14 < 38 <4 <6 <4 <5 <8 <3 <4 MEAN 72 +/- 30 Q15-1 01/02/13 - 04/04/13 70 +/- 45 <4 <6 <4 <6 < 10 <4 <4 03/28/13 - 06/26/13 73 +/- 32 <3 <4 <4 <4 < 10 <5 <4 06/26/13 - 10/02/13 77 +/- 35 <4 <5 <4 <5 <7 <4 <3 10/02/13 - 01/02/14 58 +/- 30 <4 <4 <3 <5 <9 <4 <3 MEAN 70 +/- 17 C-13

Table C-VII.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION GROUP I I GROUP 11 IGROUPIII PERIOD El 2 Fl1-3 A3-1 G2-1 1-3-1 M2-1 015-1 -1 01/02/13 -01/09/13

17

39

38 < 40

41

38

37 01/09/13 -01/17/13

49

48

42 < 20

50

42

42 01/17/13 -01/24/13

39

38

48 < 39

40

49 < 48 01/24/13 -01/31/13

40

39

52 < 39

16

52

52 01/31/13 -02/07/13

33

32

36 < 33

33

36

61 (1) 02/07/13 -02/15/13

21

21

27 < 21

28 < 11

26 02/15/13 -02/21/13

68

66

58 < 67

69

58

58 02/21/13 -02/27/13 < 44

43

38 < 43

44

38

37 02/27/13 -03/07/13

36

35

36 < 35

36

36

68 (1) 03107/13 -03/14/13

54

53

37 < 53

38

37

15 03/14/13 -03/21/13

42

41

42 < 41

42

42

49 (1) 03/21/13 -03/28/13

39

38

12 < 39

36

36

34 03/28/13 -04/04/13

49

48

36( 1) < 48

49

30

30 04/04/13 -04/11/13

54

23

50 < 53

55

51

49 04/11/13 -04/17/13

33

32

45 < 32

33

45

44 04/17/13 -04/25/13

17

40

30( 1) < 41 < 42

28

27 04/25/13 -05/02/13

34

33

27( 1) < 33

34

26

68 (1) 05/02/13 -05/09/13

67

65

42 (1 I < <22

67

41

41 05/09/13 -05/16/13

48

46

35 < 47

48

36

35 05/16/13 -05/23/13 < 47

46

40 (1 I <<47 < 18

37

37 05/23/13 -05/30/13 < 48 < 47

54 (1 <47

< < 48

53

52 05/30/13 -06/06/13

31

16

30 < 30 (1)

30 (1) 06/06/13 -06/12/13

62

60

66 < 61

67

34

66 06/12/13 -06/20/13 < 46

45 <7 < 45

19

18

63 (1) 06/20/13 -06/26/13

34

33

32 < 34

33

32 (1) 06/26/13 -07/04/13

35

14

31 < 34

35

31

32 07/04/13 -07/10/13

25

64

47 < 64

66

48

47 07/10/13 -07/18/13

52

50

59 < 51

53

59

60 07/18/13 -07/25/13

62

60

51 < 61

64

51

51 07/25/13 -08/01/13

43

15

46 < 16

44

47

47 08/01/13 -08/08/13

61

59

53 < 60

56

54

54 08/08/13 -08/15/13

54

52

38 < 53

55

39

39 08/15/13 -08/21/13

57

56

43 < 56

18 *<43

43 08/21/13 -08/29/13

34

33

38 < 34

41

16

39 08/29/13 -09/05/13 < 48

47

48 < 49

49

48

48 09/05/13 -09/12/13

28

27

34 < 28

36

34

18 09/12/13 -09/19/13

40

39

50 < 39

41

51

51 09/19/13 -09/25/13

67

65

66 < 67

69

66

67 09/25/13 -10/02/13

62

60

67 (1)

62

68

69 10/02/13 -10/10/13

59

57

60 (1)

60

60

61 10/10/13 -10/17/13

67

65

59 < 66

68

59

60 10/17/13 -10/24/13

20 < 46

52 < 47

56

53

53 10/24/13 -10/31/13

65

63

54 < 64

68

55

55 10/31/13 -11/07/13

59

57

68 < 24

60

68

69 11/07/13 -11/14/13

57

56

62 < 57

58

63

63 11/14/13 -11/21/13

59

57

50 < 58 < 60

52

52 11/21/13 -11/27/13

64

63

60 < 63

25

59

59 11/27/13 -12/05/13

54

53

51 < 53

54

51

50 12/05/13- 12/11/13

39

38

51 < 39

40

16

53 12/11/13 -12/19/13

58

56

66 < 57

59

67

67 12/19/13 -12/26/13

69

67

67 < 68

70

68

68 12/26/13 -01/02/14

57

55

23 < 56

63

60

61 MEAN---

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-14

Table C-VIII.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION CONTROL FARM I INDICATOR FARM PERIOD K15-3 E2-2 F4-1 G2-1 P4-1 01/16/13 < 0.9 < 0.9 < 0.9 < 0.9 < 1.0 02/13/13 < 0.7 < 0.6 < 0.7 < 0.8 < 0.7 03/13/13 < 0.7 < 0.8 < 0.6 < 0.7 < 0.8 03/27/13 < 0.7 < 0.7 < 0.6 < 0.7 < 0.6 04/10/13 < 0.6 < 0.7 < 0.6 < 0.6 < 0.7 04/24/13 < 0.8

0.8

0.9 < 0.8 < 0.8 05/08/13 < 0.4 < 0.6 < 0.4 < 0.5 < 0.4 05/22/13 < 0.7 < 0.6 < 0.6 < 0.6 < 0.6 06/05/13 < 0.6 < 0.6 < 0.6 < 0.6 < 0.8 06/19/13 < 0.8 < 0.9 < 0.6 < 0.8 < 0.7 07/03/13 < 0.7 < 0.8 < 0.6 < 0.8 < 0.8 07/17/13 < 0.7 < 0.7 < 1.0 < 0.5 < 0.9 07/31/13 < 0.8 < 0.8 < 0.7 < 0.7 < 0.6 08/14/13 < 0.7

0.6 < 0.7 < 0.5 < 0.6 08128/13 < 0.7 < 0.8 < 0.7 < 0.7 < 0.9 09/11/13 < 0.6 < 0.7 < 0.6 < 0.7 < 0.7 09/25/13 < 0.6 < 0.5 < 0.5 < 0.5 < 0.5 10/09/13 < 0.6 < 0.6 < 0.7 < 0.7 < 0.6 10/23/13 < 0.6 < 0.7 < 0.6 < 0.7 < 0.6 11/06/13

0.8

0.9 < 1.0

0.7 < 1.0 11/20/13 < 0.9 < 1.0 < 0.7 < 0.9 < 0.9 12/04/13 < 0.6 < 0.7 < 0.7 < 0.6 < 0.7 MEAN C-15

Table C-VIII.2 CONCENTRATIONS OF STRONTIUM IN MILK SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA CONTROLFARM I INDICATOR FARMS COLLECTION K15-3 P4-1 I E2-2 I F4-1 IG2-1 PERIOD SR-89 SR-90 SR-89 SR-90 SR-89 SR-90 SR-89 SR-90 SR-89 SR-90 01/16/13 - 03/27/13 < 2.3 < 1.0 < 2.6 < 0.9 < 2.5 < 0.9 < 2.7 < 1.0 < 2.4 < 0.8 04/10/13 - 06/19/13 < 4.9 < 1.0 < 4.6 < 0.7 < 4.7 < 0.8 < 4.6 < 1.0 < 4.8 < 0.7 07/03/13 - 09/25/13 < 4.9 < 0.7 < 4.8 < 0.8 < 4.3 < 0.6 < 4.6 < 0.7 < 2.9 < 0.9 10/09/13 - 12/04/13 ' 4.0 < 0.6 < 3.8 < 0.9 < 4.2 < 0.6 < 3.9 < 0.8 < 4.2 < 0.6 MEAN

Table C-VIII.3 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/-2 SIGMA SITE COLLECTION K-40 Cs-134 Cs-137 Ba-140 La-140 PERIOD E2-2 01/16/13 1253 +/- 97 <4 <5

27 < 10 02/13/13 1224 +/- 169 <9 <11

51 <10 03/13/13 1233 +/- 146 <5 <7

27 *10 03/27/13 1355 +/- 113 <4 <5

22 <8 04/10/13 1189 +/- 127 <5 <6

20 <6 04/24/13 1193 +/- 144 <5 <6 < 33 <11 05/08/13 1253 +/- 123 <5 <6

28 <7 05/22/13 1146 +/- 169 <5 <6 < 46 <15 06/05/13 1147 +/- 187 <8 <9 < 42 <9 06/19/13 1276 +/- 168 <7 <8 < 37

14 07/03/13 1484 +/- 140 <5 <6 < 41 *10 07/17/13 1521 +/- 160 <6 <6

29 <8 07/31/13 1322 +/- 139 <6 <7

31 <9 08/14/13 1397 +/- 187 <7 <7

32 <10 08/28/13 1338 +/- 113 <4 <4 < 46 *13 09/11/13 1223 +/- 161 <6 <7 < 37 <6 09/25/13 1314 +/- 153 <6 <7

52

14 10/09/13 1208 +/- 137 <5 <6

30 *10 10/23/13 1440 +/- 135 <5 <5 < 33 <9 11/06/13 1151 +/- 150 <6 <6

40 <11 11/20/13 1278 +/- 145 <5 <7 < 47 < 12 12/04/13 1319 +/- 164 <8 <8 < 43 <13 MEAN 1285 +/- 212 F4-1 1/16/2013 1438 +/- 94 <3 <4

28 <8 02/13/13 1374 +/- 170 <7 <9

36

12 03/13/13 1482 +/- 171 <6 <7

36 *10 03/27/13 1403 +/- 129 <5 <6

23 <8 04/10/13 1474 +/- 190 <6 <8 < 31 <12 04/24/13 1362 +/- 125 <5 <6 < 34 <7 05/08/13 1313 +/- 169 <5 <7

32 < 10 05/22/13 1427 +/- 164 <5 <6 < 45 *12 06/05/13 1361 +/- 164 <6 <8

32 <11 06/19/13 1439 +/- 155 <6 <6 < 22 <9 07/03/13 1321 +/- 134 <5 <7

41 <12 07/17/13 1129 +/- 148 <5 <6

31 <7 07/31/13 1341 +/- 148 <4 <6

24 <8 08/14/13 1403 +/- 177 <7 <7 < 36 <10 08128/13 1450 +/- 105 <4 <4 *41 *12 09/11/13 1224 +/- 153 <5 <6

31 <10 09/25/13 1411 +/- 144 <5 <6 < 43 <11 10/09/13 1513 +/- 150 <5 <7

30 <11 10/23/13 1415 +/- 119 <5 <6

36 <11 11/06/13 1464 +/- 152 <6 <6 < 44 < 13 11/20/13 1424 +/- 140 <5 <6 < 39 < 15 12/04/13 1526 +/- 156 <7 <8

38 < 12 MEAN 1395 +/- 184 -

C-17

Table C-VIII.3 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION K-40 Cs- 134 Cs-137 Ba-140 La-140 PFRIODf PERIOD G2-1 1/16/2013 866 +/- 92 <4 <5 < 30 < 10 2/13/2013 1220 +/- 133 <6 <6 < 38 < 11 3/13/2013 785 +/- 134 <7 <7 < 38 < 10 03/27/13 1306 +/- 115 <4 <5 < 26 <6 04/10/13 996 +/- 130 <6 <8 < 33 < 11 04/24/13 1194 +/- 116 <5 <5 < 30 <9 05/08/13 1139 +/- 158 <8 <9 < 43 < 13 05/22/13 912 +/- 135 <5 <7 < 48 < 11 06/05/13 718 +/- 151 <7 <8 < 38 < 12 06/19/13 1031 +/- 140 <6 <7 < 35 < 10 07/03/13 740 +/- 131 <6 <7 < 42 < 13 07/17/13 1793 +/- 152 <5 <7 < 30 <9 07/31/13 1010 +/- 144 <7 <8 < 37 < 14 08/14/13 966 +/- 158 <8 <9 < 50 < 12 08/28/13 920 +/- 109 <4 <5 < 44 < 15 09/11/13 925 +/- 134 <6 <7 < 30 < 11 09/25/13 1113 +/- 150 <6 <7 < 46 < 13 10/09/13 715 +/- 140 <6 <6 < 35 <9 10/23/13 788 +/- 98 <4 <4 < 33 < 12 11/06/13 745 +/- 128 <7 <8 < 48 < 12 11/20/13 1003 +/- 127 <6 <6 < 42 < 11 12/04/13 902 +/- 143 <7 <7 < 40 <9 MEAN 990 +/- 492 K15-3 01/16/13 1262 +/- 100 <4 <4 < 28 <9 02/13/13 1217 +/- 151 <8 <8 < 40 <8 03/13/13 1232 +/- 130 <5 <6 < 31 <8 03/27/13 1266 +/- 114 <4 <5 < 20 <6 04/10/13 1336 +/- 148 <8 <8 < 37 <8 04/24/13 1369 +/- 141 <6 <7 < 36 < 10 5/8/2013 1325 +/- 151 <6 <7 < 29 <6 05/22/13 1419 +/- 152 <7 <6 < 48 < 11 6/5/2013 1132 +/- 172 <7 <6 < 33 <9 06/19/13 1353 +/- 147 <5 <7 < 30 <8 07/03/13 1426 +/- 148 <6 <5 < 39 < 11 07/17/13 1211 +/- 131 <6 <7 < 31 <8 07/31/13 1465 +/- 145 <6 <6 < 28 <8 08/14/13 1336 +/- 161 <6 <5 < 35 < 12 08/28/13 1410 +/- 141 <5 <6 < 54 < 15 09/11/13 1368 +/- 146 <6 <7 < 35 <9 09/25/13 1308 +/- 138 <5 <6 < 43 < 13 10/09/13 1243 +/- 125 <5 <6 < 30 <8 10/23/13 1429 +/- 130 <4 <5 < 36 < 11 11/06/13 1187 +/- 132 <6 <6 < 43 <9 11/20/13 1264 +/- 137 <6 <7 < 49 < 15 12/04/13 1300 +/- 137 <5 <6 < 34 <9 MEAN 1312 +/- 178 C-18

Table C-VIII.3 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION K-40 Cs-134 Cs-137 Ba-140 La-140 PFRIC)fl PERIOD P4-1 01/16/13 1371 +/- 106 <4 <4

28 10 02/13/13 1325 +/- 150 <6 <7

32 10 03/13/13 1309 +/- 121 <4 <4

21 7 03/27/13 1345 +/- 86 <4 <4

18 5 04/10/13 1373 +/- 133 <5 <6

27 8 04/24/13 1296 +/- 151 <5 <7 < 44 10 05/08/13 1398 +/- 168 <6 <7

31 9 05/22/13 1419 +/- 166 <7 <6 < 44 12 06/05/13 1289 +/- 192 <7 <8

32 10 06/19/13 1412 +/- 166 <7 <6 < 34 11 07/03/13 1393 +/- 110 <5 <4

32 8 07/17/13 1362 +/- 162 <7 <7 < 39 12 07/31/13 1507 +/- 149 <5 <6 < 28 10 08/14/13 1418 +/- 173 <6 <7

30 11 08/28/13 1350 +/- 110 <4 <5 < 41 10 09/11/13 1481 +/- 175 <6 <9 < 33 11 09/25/13 1475 +/- 156 <5 <6 < 44 15 10/09/13 1464 +/- 170 <6 <6

28 9 10/23/13 1412 +/- 135 <5 <6 < 37 11 11/06/13 1395 +/- 185 <5 <6 < 37 11 11/20/13 1483 +/- 146 <6 <5 < 39 14 12/04/13 1257 +/- 138 <5 <7

29 7 MEAN 1388 +/- 137 C-19

Table C-IX.1 CONCENTRATIONS OF STRONTIUM AND GAMMA EMITTERS IN FOOD PRODUCT SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION Sr-90 Be-7 K-40 1-131 Cs-134 Cs-137 PERIOD B10-2 Cauliflower Leaves 06/25/13 5 +/-2 <172 4304 +/- 431 < 33 <17 < 18 Green Cabbage 06/25/13 < 3 < 204 3836 +/- 463 < 35 < 19 < 22 Sunflower Leaves 06/25/13 8 +/- 3 362 +/- 175 7715 +/- 525 < 34 < 16 < 20 Cabbage 07/09/13 3 +/- 2 < 215 2416 +/- 448 < 44 < 20 < 24 Broccoli Leaves 07/22/13 7 +/- 3 386 +/- 189 3660 +/- 461 < 47 < 24 < 24 Green Cabbage 07/22/13 < 5 < 175 2005 +/- 416 < 38 < 18 < 16 Sunflower Leaves 07/22/13 8 +/- 3 736 +/- 239 8009 +/- 734 < 38 < 21

23 Sweet Corn 07/31/13 < 121 2205 +/- 309 < 32 < 16 < 17 Tomatoes 07/31/13 < 174 2182 +/- 305 < 40 < 19

17 Neck Pumpkin Leaves 08/28/13 7 +/- 3 1538 +/- 208 5273 +/- 375 < 49 < 17 < 18 Red Beet Greens 08/28/13 <4 387 +/- 169 9046 +/- 465 < 48 < 15 < 16 Sunflower Leaves 08/28/13 <4 1021 +/- 173 6884 +/- 477

51 < 17 < 21 Gourd Leaves 09/30/13 30 +/- 3 2637 +/- 127 4848 +/- 192 < 58 <7 <8 Radish Greens 09/30/13 14 +/- 2 147 +/- 65 5850 +/- 171 < 48 <5 <6 Sunflower Leaves 09130/13 9 +/- 2 1153 +/- 98 5934 +/- 204 < 57 <7 <7 Sweet Potatoes 09/30/13 < 53 4274 +/- 141 < 39 <5 <6 MEAN 10 +/- 16 930 +/- 1566 4903 +/- 4426 EI-2 Cabbage 07/09/13 7 +/- 2 < 196 3536 +/- 452 < 43 < 17 < 20 Sweet Corn 07/31/13

128 2576 +/- 379 < 32 < 17 < 18 Tomatoes 07/31/13

129 2431 +/- 341 < 28 < 14

17 Sweet Potatoes 09/30/13

62 3534 +/- 147 < 46 <6 <6 MEAN 3019 +/- 1197 H11-2 Eggplant Leaves 06/25/13 12 +/- 3 359 +/- 155 8483 +/- 488

38 < 17 < 17 Squash Leaves 06/25/13 7+/- 4 < 146 5337 +/- 458 < 32 < 16 *18 Zucchini Leaves 06/25/13 17 +/- 3 141 +/- 96 5472 +/- 350 < 25 < 12 < 13 Eggplant Leaves 07/22/13 16 +/- 4 610 +/- 248 4113 +/- 620 < 54 < 21 < 31 Squash Leaves 07/22/13 27 +/- 5 869 +/- 282 3476 +/- 571

50 < 20 < 19 Zucchini Leaves 07/22/13 16 +/- 4 768 +/- 228 4663 +/- 574 < 49 < 20 < 21 Eggplant Leaves 08/28/13 12 +/- 3 1435 +/- 192 3087 +/- 311 < 42 < 15 < 16 Neck Pumpkin Leaves 08/28/13 <4 888 +/- 179 4083 +/- 344 < 48 < 15 < 16 Zucchini Leaves 08/28/13 8 +3 261 +/- 171 4272 +/- 361 < 48

14 < 17 Squash Leaves 09/30/13 24 +/-3 723 +/- 84 3217 +/- 149 < 56 <6 <7 Turnip Greens 09/30/13 4 +/-2 188 +/- 62 5369 +/- 148 < 45 <5 <6 Zucchini Leaves 09/30/13 11 +/-2 527 +/- 71 3334 +/- 153 < 56 <6 <7 MEAN 14 +/- 14 615 +/- 762 4576 +/- 2994 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-20

Table C-X.1 QUARTERLY OSLD RESULTS FOR THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

A1-4 17.2 +/- 2.9 18.9 16.4 15.6 17.7 A3-1 16.9 +/- 2.5 18.2 16.1 15.7 17.8 A5-1 21.1 +/- 0.8 21.7 21.0 20.8 21.0 A9-3 18.4 +/- 2.6 19.6 18.9 16.6 18.5 B1-1 17.7 +/- 2.4 19.3 17.2 16.5 17.8 B1-2 17.4 +/- 3.4 19.5 16.2 15.8 18.1 B2-1 18.1 +/- 1.8 18.6 18.0 16.9 19.0 B5-1 20.5 +/- 2.9 21.7 21.3 18.5 20.7 Cl-i 20.1 +/- 2.3 21.3 20.3 18.5 20.4 C1-2 17.2 +/- 3.7 19.2 16.2 15.2 18.3 C2-1 20.2 +/- 2.6 20.9 20.8 18.3 20.9 C5-1 20.9 +/- 3.2 22.5 21.0 18.7 21.6 C8-1 21.3 +/- 3.7 23.1 21.9 18.7 21.8 D1-1 18.3 +/- 3.3 19.8 17.4 16.5 19.6 D1-2 19.2 +/- 2.5 20.7 19.2 17.7 19.2 D2-2 23.3 +/- 3.0 24.4 23.0 21.4 24.7 D6-1 22.3 +/- 2.8 23.3 22.8 20.2 22.7 E1-2 18.3 +/- 3.5 20.1 17.5 16.3 19.5 E1-4 20.7 +/- 5.1 22.3 19.2 17.9 23.3 E2-3 21.7 +/- 2.0 22.6 21.8 20.3 22.2 E5-1 20.6 +/- 2.7 21.5 21.1 18.7 21.4 E7-1 20.3 +/- 3.2 22.0 19.8 18.3 21.0 F1-1 19.7 +/- 2.6 21.1 18.3 18.9 20.5 F1-2 25.5 +/- 8.3 25.5 24.7 20.8 30.9 F1-4 23.8 +/- 7.5 24.2 22.0 20.2 28.8 F2-1 22.1 +/- 2.3 23.6 22.0 20.8 22.2 F5-1 23.0 +/- 2.7 24.2 23.9 21.3 22.8 G1-2 20.1 +/- 2.7 20.9 19.3 18.6 21.5 G1-3 20.9 +/- 3.7 21.9 19.6 19.0 22.9 G1-5 18.3 +/- 2.5 18.7 17.4 17.2 19.9 G1-6 19.8 +/- 2.4 20.3 18.9 18.7 21.2 G2-4 24.2 +/- 2.3 25.4 24.5 22.7 24.5 G5-1 19.8 +/- 2.6 21.4 18.8 18.7 20.3 H1-1 19.4 +/- 2.0 20.7 19.4 18.3 19.2 H3-1 16.8 +/- 2.1 18.1 16.4 15.6 17.2 H5-1 15.8 +/- 3.2 17.3 14.8 14.0 16.9 H8-1 29.6 +/- 0.5 29.4 29.9 29.5 29.6 J1-1 18.2 +/- 2.8 19.5 18.9 16.3 18.1 J1-3 15.9 +/- 2.5 17.3 15.3 14.5 16.5 J3-1 19.7 +/- 2.3 21.3 19.8 18.6 19.1 J5-1 21.8 +/- 2.4 23.4 20.9 20.9 22.0 J7-1 22.9 +/- 2.2 23.8 23.0 21.3 23.4 K1-4 17.7 +/- 1.4 18.3 17.5 16.8 18.2 K2-1 21.7 +/- 2.1 21.7 22.2 20.3 22.7 K3-1 18.0 +/- 2.0 18.6 18.7 16.5 18.1 C-21

Table C-X.1 QUARTERLY OSLD RESULTS FOR THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER STATION MEAN JAN - MAR APR - JUN JUL - SEP OCT - DEC CODE +/- 2 S.D.

K5-1 21.7 +/- 1.5 22.8 21.3 21.2 21.5 K8-1 21.1 +/- 2.9 22.4 20.8 19.2 22.1 LI-1 18.1 +/- 2.6 19.8 17.2 16.9 18.5 L1-2 18.3 +/- 2.4 19.5 18.2 16.7 18.8 L2-1 19.9 +/- 2.5 21.3 19.3 18.6 20.5 L5-1 18.2 +/- 2.3 19.2 18.4 16.5 18.6 18-1 19.8 +/- 1.5 20.7 20.1 18.9 19.5 Mi-i 16.6 +/- 2.9 18.2 16.2 14.8 17.1 MI1-2 19.8 +/- 2.6 21.0 20.1 18.0 20.3 M2-1 17.6 +/- 2.0 19.0 17.4 16.6 17.4 M5-1 20.1 +/- 2.6 21.4 20.4 18.3 20.3 M9-1 23.9 +/- 1.8 25.1 23.9 22.9 23.9 N1-1 18.9 +/- 1.9 19.4 19.5 17.5 19.3 N1-3 17.7 +/- 3.0 19.5 16.5 16.5 18.5 N2-1 20.5 +/- 2.1 21.9 20.4 19.3 20.4 N5-1 17.0 +/- 2.4 18.5 16.6 15.6 17.3 N8-1 21.0 +/- 2.3 22.6 20.9 19.8 20.6 P1-i 19.0 +/- 1.7 20.0 18.7 18.0 19.3 PI-2 18.4 +/- 3.9 20.1 18.7 15.6 19.3 P2-1 22.9 +/- 1.8 23.9 22.9 21.8 23.3 P5-1 20.0 +/- 3.1 21.6 19.6 18.0 20.8 P8-1 17.3 +/- 2.9 18.8 17.3 15.4 17.7 Q1-1 19.2 +/- 2.0 19.8 19.1 17.8 20.0 Q1-2 16.4 +/- 3.2 18.2 16.0 14.4 16.9 Q2-1 18.0 +/- 1.6 19.0 17.8 17.1 18.0 Q5-1 18.2 +/- 2.4 19.8 17.6 17.1 18.3 Q9-1 19.3 +/- 1.6 20.2 18,8 18.5 19.7 Ri-1 17.0 +/- 3.2 18.8 15.6 15.8 17.9 RI-2 17.8 +/- 2.0 18.8 17.7 16.5 18.4 R3-1 22.1 +/- 2.1 23.1 22.7 20.7 22.1 R5-1 21.5 +/- 2.3 23.0 21.3 20.3 21.6 R9-1 21.5 +/- 2.4 22.5 20.9 20.1 22.5 B10-1 19.9 +/- 2.5 20.8 19.8 18.3 20.9 D15-1 20.3 +/- 1.8 21.2 20.1 19.1 20.7 F10-1 24.2 +/- 1.6 25.0 23.8 23.3 24.7 F25-1 21.1 +/- 2.1 22.3 21.0 19.8 21.3 G10-1 28.4 +/- 2.7 29.5 27.1 27.5 29.7 G15-1 25.2 +/- 2.8 26.3 25.4 23.1 25.9 H15-1 21.3 +/- 2.9 22.6 22.1 19.3 21.3 J15-1 23.3 +/- 3.1 25.0 22.6 21.6 24.2 K15-1 19.7 +/- 2.5 21.3 19.6 18.3 19.6 L15-1 20.5 +/- 2.3 21.3 20.5 18.9 21.3 N15-2 22.1 +/- 0.9 22.5 21.9 22.5 21.6 Q15-1 21.9 +/- 2.3 23.0 21.4 20.5 22.6 R15-1 19.2 +/- 2.4 20.5 19.6 17.6 19.3 C-22

TABLE C-X.2 MEAN QUARTERLY OSLD RESULTS FOR THE SITE BOUNDARY, INDICATOR AND CONTROL LOCATIONS FOR THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER +/- 2 STANDARD DEVIATIONS OF THE STATION DATA COLLECTION SITE BOUNDARY INDICATOR CONTROL PERIOD +/- 2 S.D.

JAN-MAR 20.0 +/- 4.2 21.3 +/- 4.4 23.2 +/- 5.4 APR-JUN 17.9 +/- 4.7 20.1 +/- 5.0 21.9 +/- 4.8 JUL-SEP 16.8 +/- 3.7 18.8 +/- 4.9 20.7 +/- 5.7 OCT-DEC 20.1 +/- 7.8 20.6 +/- 4.6 22.5 +/- 6.1 TABLE C-X.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF MILLI-ROENTGEN/QUARTER LOCATION SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

SITE BOUNDARY 76 14.4 30.9 18.7 +/- 6.0 INDICATOR 240 14.0 29.9 20.2 +/- 5.1 CONTROL 44 17.6 29.7 22.1 +/- 5.6 SITE BOUNDARY STATIONS- A1-4, B1-2, Cl-2, Di-1, E1-4, F1-2, F1-4, G1-3, G1-5, G1-6, H1-1, J1-3, K1-4, Li-1, Mi-1, N1-3, Pi-2, Q1-2, Ri-i INDICATOR STATIONS -A3-1, A5-1, A9-3, B1-1, B10-1, B2-1, B5-1, Cl-1, C2-1, C5-1, C8-1, Di-2, D2-2, D6-1, Ei-2, E2-3, E5-1, E7-1, Fi-1, F10-1, F2-1, F5-1, G1-2, G2-4, G5-1, H3-1, H5-1, H8-1, J1-i, J3-1, J5-1, J7-1, K2-1, K3-1, K5-1, K8-1, Li-2, L2-1, L5-1, L8-1, M1-2, M2-1, M5-1, M9-1, Ni-i, N2-1, N5-1, N8-1, Pi-1, P2-1, P5-1, P8-1, Qi-i, Q2-1, Q5-1, Q9-1, R1-2, R3-1, R5-1, R9-1 CONTROL STATIONS - Di5-1, F25-1, G10-1, GI5-1, Hi5-1, J15-1, Ki5-1, Li5-1, N15-2, Q15-1, R15-1 C-23

FIGURE C-1 Monthly Tritium Concentrations in Surface Water and Effluent Water Three Mile Island Nuclear Station, 2013 El Station J1-2 (Downstream of Discharge) ui Station Q9-1 (Control) 100000 LO 10000 u, 1000 010 S 10 Jan Feb Mar Apr May Jun Ij1 Aug Sep Oct Nov Dec t--

II-,---

IV ------

V"I"I~

U Station K1-1 (TMINS Liquid Discharge)

.I-

.o)a 100 1000000 100 100 --------------

1000000 -----------------------------------------------.-.----

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month

FIGURE C-2 Mean Quarterly Tritium Concentrations in Surface Water Three Mile Island Nuclear Station, 1974 - 2013 Indicator Samples --- Control Samples 12000 Significant Events Major Atm. Nuclear Weapon Tests 11000 TMI-I Critical June 1974 June 1974 September 1974 TMI-2 Critical March 1978 September 1976 November 1976 10000 TMI-2Accident March 1979 September 1977 March 1978 TMI-2 RB Purge June 1980 December 1978 October 1980 9000 Chernobyl April 1986 8000

. 7000 tb -J

. 6000

j 5000 U

h" 4000 . ..

8 0..0 - -. -. -. -, -, - .,

0 -,l - - - - - - - - - - .-, - - i l , . - - - - - - - - - - - - - . .. .

.2 70 - 0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

2000 * ',

1000 - ' ..

-1000 1 11111 ................. 11111111111.. .. .. 1"1

.. '"11 1 I ...... 11 1 1 1

'" ' ....................................... ...... ',,,11, . .1111111 1 1 .......

1 1 1 1 ...... ....... .....

N-LA CLO 0

N- N- N-

- w N-0M 0 N- wO (

1- "4 M~ V* LO 0 M w w w

- M M) 0 w 0)

"4 M~ 'I

0) 0) 0) 0 A

0M (0 Nl- w0 M 0 Is "4 M~ IT A CO - M 0) 0 0 ~

M w w 0M 0M 0) 0 0D 0 00 003 0 0 00) 0-----------

M C) (

0M 0) 0)

0) 0) 0) 0M 0n 0M 0) 0)0M)M 0 0) 0) 0) 0) 0) 0) 0D 0) 0D) 0)0 0 0) 0 0 0 0 0 0 03 :0 Year

FIGURE C-3 Mean Monthly Gross Beta Concentrations in Drinking Water Three Mile Island Nuclear Station, 2013 El Indicator Samples I] Control Samples 10 9

8 7

6

.2 0.

8f-----

5 4

3 - -

F}-----

1FH---- ----- rf7R-----

2 ----

Ff2 0

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month

FIGURE C-4 Mean Monthly Tritium Concentrations in Drinking Water and Effluent Water Three Mile Island Nuclear Station, 2013 NOTE: The mean values are calculated using both the MDCs and El Indicator Samples D.,Control Samples the positive values.

500 NOTE: USEPA Drinking Water Limit for Tritium: 20,000 pCi/L Q 0 . . . . . . . ..... . . . . . . . .. ......

0 400-

. 00 . .. ..

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec n-Month N Station K1-1 (TMVINS Liquid Discharge) 1000000 100000-I.-

10000

3 (0

1000 0

"-)

C. 100-0o

10. -H -H ----

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month

FIGURE C-5 Mean Cesium-137 Concentrations in Aquatic Sediments Three Mile Island Nuclear Station, 1984 - 2013

- Indicator Samples -_ Control Samples 900 800 700 E 600 ec o 500 I--

a)

C:L CA400 a) 0 300 0..

200 100 0

IT00 00 CO D -

CD CD 00 00 0)

CO 0 - N M 11; M" M N- Cw 0) 0 '- N c*

U) CO N CO 0) 0 '- ( CO CM 0) 0 0 C 0)

CM 0 M0 M 0) 0)

D 0)

-M) 0)

M 0)

CD 0)

'M C) 0 00) 0 0 000) 00 0 000 00 00; 0 00 0 CD-'-

0 '

0

" " N N (N N CN N N (N 1 (N Year

FIGURE C-6 Mean Quarterly Gross Beta Concentrations in Air Particulates Three Mile Island Nuclear Station, 1972 - 2013

- Indicator - Control 0.4 Significant Events Major Atm. Nuclear Weapon Tests TMI-1 Critical June 1974 March 1972 June 1973 0.35 + TMI-2 Critical March 1978 June 1974 September 1974 TMI-2 Accident March 1979 September 1976 November 1976 TMI-2 RB Purge June 1980 September 1977 March 1978 Chernobyl April 1986 December 1978 October 1980 0.3+/-

0.25 (D 0.25 C..

c--

Co 0 0.15 - -- ----------------------------------------------------------------

(.)

CL 0.1 - --- - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0.05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

0 .41111~~~~~~~~~~

lii ll~l 111111111 1111 1111 II:I 1111 11111 1::: : .: ti :11 C1 C0 " t0 (0 r-- 0 0) 0o- 04 CQ 'I- T (0D r- 00 0) 0 ;;- 0 CQ " L.O (0D - 00 0) 0 S 4- M 'q" L0 (0 - 00 0) 0 '-- *C'. C*"

- r- N. 1- 1- N- 00 0DCDC) 0 0D 0 00 00D 0) 0) 0) 0l) CT) 0e) 0) 0) (j) 0) 0 0 0 0 0 0 0 0 0 03 - E; -

0) 0 0) 0) 0) 0) 0) 0D 0) 0) 0Y) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) 0) a) 0 0) C0 0) C00 0 00C0 0 0 0 r------- -------- ------- .0 04 . . N.NNNNNNNNN CN Year

FIGURE C-7 Mean Weekly Gross Beta Concentrations in Air Particulates Three Mile Island Nuclear Station, 2007 - 2013 0.100*

Indicator --- Control 0.090 0.080 0.070 o 0.060 a.)

"D0.050 " -- - -"------

0. 0 .0 3 0 -- - - - - -- -- -- -- -- -- - - -- - - -- -- - - -- -- -- -- -- -- -- -- -- --

CL 0.020-0.010 -- - - --- - - -- -~

--'s-0 .iii0iiiii i"immmi""m iimi i2ii m""

N- r- I- N. r- CX) O m W 0 m) (0) 0) 0 0 0 0 0 - - C'- . (4 ' (' C")

ý'- C) r*)

ý)

o 0 0 0 0 0 0 0 0 0 0 0 0..............

o o o 0 0 0 o 0 0 0 0 0 0 0 0 0 0 0 o 0 Lo 0 r0 0 0 o 0 (0 0) 0J L cc) V- rN- 0 Mo (0 0M Y r O -

Month I Day I Year The high value on 11/24/2009 was caused by an airborne release on 11/21/2009

FIGURE C-8 Mean Quarterly Strontium-90 Concentrations in Cow Milk Three Mile Island Nuclear Station, 1979 - 2013 Indicator Samples - Control Samples Significant Events Major Atm. Nuclear Weapon Tests TMI-2 Accident March 1979 December 1978 October 1980 TMI-2 RB Purge June 1980 Chernobyl April 1986 8

7 U1)

-J 6 L..

U1)

- 5 (3

.. 1 1 Y . ... . . _..... ...... _

O I i l l l l l lI I I I I I II l l l i l I I I I I I I l l li*l l l lml l l l l I l l M) 0 N-0 N

W M~ 'IT LO (D W W UW W) r-W)

W) C 0 C W)U)0)0 W M

- N 0)0)C0)

Q~ 'I LO 0)

D t-

0) 0)

W) M 30)0) 0 E; 00 Q

0 c')

0 q1 C)0 U) 0 (0

00 N- O 0

0) 0 0 x

~

r- rrrrrrrrrr-rrr-

- - - rr'- r r -r- r'- r- r r-r r r- r rr-

- rr1N

- r- - N N N CN N N " N N N N N N Year

Intentionally left blank APPENDIX D DATA TABLES AND FIGURES COMPARISON LABORATORY

Intentionally left blank The following section 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. Comparison of the results for most media were within expected ranges.

D-1

Intentionally left blank D-2

TABLE D-1.1 CONCENTRATIONS OF GROSS BETA IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION Q9-1Q PERIOD 12131112 01/29/13 1.6 +/- 0.7 01/29/13 02/26/13 1.9 +/- 1.0 02/26/13 04/02/13 < 1.2 04/02/13 04/30/13 1.3 +/- 0.7 04/30/13 05/28/13 < 0.8 05/28/13 07/02/13 0.7 +/- 0.4 07/02/13 07/30/13 1.8 +/- 0.6 07/30/13 09/03/13 < 0.9 09/03/13 10/01/13 1.9 +/- 0.9 10/01/13 10/29/13 1.3 +/- 0.4 10/29/13 12/03/13 0.9 +/- 0.3 12/03/13 12/31/13

1.3 MEAN 1.4 +/- 0.9 TABLE D-I.2 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION Q9-1Q PERIOD 12/31/12 - 01/29/ 13 < 143 01/29/13 - 02/26/ 13 < 139 02/26/13 - 04/02/ 13 < 150 04/02/13 - 04/30/ 13 < 142 04/30/13 - 05/28/ 13 < 188 05/28/13 - 07/02/ 13 < 165 07/02/13 - 07/30/ 13 < 156 07/30/13 - 09/03/ 13 < 150 09/03/13 - 10/01/'13 < 152 10/01/13 - 10/29/ 13 < 145 10/29/13 - 12/03/ 13 < 148 12/03/13 - 12/31/ 13 < 150 MEAN TABLE D-1.3 CONCENTRATIONS OF IODINE-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION Q9-1Q PERIOD 12/31/12 - 01/29/13 < 0.5 01/29/13 - 02/26/13 < 0.4 02/26/13 - 04/02/13 < 0.3 04/02/13 - 04/30/13 < 0.3 04/30/13 - 05/28/13 < 0.4 05/28/13 - 07/02/13 < 0.5 07/02/13 - 07/30/13 < 0.3 07/30/13 - 09/03/13 < 0.4 09/03/13 - 10/01113 < 0.2 10/01/13 - 10/29/13 < 0.2 10/29/13 - 12/03/13 < 0.2 12/03/13 - 12/31/13 < 0.4 MEAN

THE MEAN AND 2 STANDARD DEVIATION VALUES ARE CALCULATED USING THE POSITIVE VALUES D-3

TABLE D-1.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 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 Q9-1Q 12/31/12 -01/29/13 <3 <9 <2 <2 <4 <5 <3 <2 <3

28 <5 01/29/13 - 02/26/13 <3 <6 <2 <3 <6 < 4 <2 <4 <2 < 14 <3 02/26/13 - 04/02/13 <2 <5 <2 <2 <2 <3 <3 <3 <3 < 18 <3 04/02/13 - 04/30/13 <6 <9 <3 <8 <11 <7 <4 <7 <8 < 38 <5 04/30113 - 05128113 <2 <5 <3 <2 <4 <4 <1 <3 <3 < 19 <3 05/28/13 - 07/02/13 <2 <5 <2 <2 <3 <3 <4 <2 <2 < 26 <5 07/02/13 - 07/30/13 <3 <3 <2 <3 <3 <3 <3 <4 <3 < 22 <5 07/30/13 - 09/03/13 <3 <5 <2 <2 <3 <5 <3 <3 <3 *19 <4 09/03/13 - 10/01/13 < 1 <3 <2 <1 <2 <3 <2 <1 <1 < 16 <3 10101113 - 10/29/13 <2 <7 <2 <2 <5 <4 <2 <2 <3 < 18 <5 10/29/13 - 12/03/13 <3 <6 <2 <3 <2 <4 <3 <3 <3 < 18 <2 12/03/13 - 12/31/13 <2 <2 <2 <2 <3 <3 <2 <3 <3 < 12 <3

TABLE D-11.1 CONCENTRATIONS OF STRONTIUM AND GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/KG WET +/-:2 SIGMA SITE COLLECTION Sr-89 Sr-90 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 PERIOD INDP 09/24/13 < 8 <4 3220 +/- 360 < 8 < 13 < 34 <8 < 17 < 12 <6

TABLE D-111.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION K-40 Cs-134 Cs-137 PERIOD J2-1 10/30/13 13490 +/- 8800 < 38 88 +/- 43 D-6

TABLE D-IV.1 CONCENTRATIONS OF GAMMA EMITTERS AND STRONTIUM IN FOOD PRODUCT SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA SITE COLLECTION K-40 1-131 Cs-134 Cs-137 Sr-89 Sr-90 PERIOD H1-2Q 07/22/13 4710 +/- 360 < 24 < 15 < 16 < 17 15 +/- 4 B10-2Q 07/09/13 1520 +/- 160 < 11 < 5 <5 < 2 < 1 MEAN 3115 +/- 4511 - - - - -

D-7

TABLE D-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE AND 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION E1-2Q El-2Q PERIOD GROSS BETA 1-131 UllUZII,.i 55 +/--6 < 21 01/09/13 01/17/13 32 +/- 4 < 15 01/17/13 01/24/13 34 +/- 5 < 16 01/24/13 01/31/13 28 +/- 5 < 20 01/31/13 02/07/13 38 +/- 5 < 24 02/07/13 02/15/13 24 +/- 4 < 12 02/15/13 02/21/13 19 +/- 5 < 15 02/21/13 02/27/13 13 +/- 5 < 13 02/27/13 03/07/13 13 +/- 4 < 20 03/07/13 03/14/13 18 +/- 4 < 24 03/14/13 03/21/13 26 +/- 4 < 13 03/21/13 03/28/13 11+/- 4 < 24 03/28/13 04/04/13 21 +/-4 < 25 04/04/13 04/11/13 29 +/-5 < 12 04/11/13 04/17/13 17+/- 5 < 18 04/17/13 04/25/13 20 +/-4 < 17 04/25/13 05/02/13 30 +5 < 26 05/02/13 05/09/13 12 +4 < 24 05/09/13 05/16/13 21 +5 < 13 05/16/13 05/23/13 19+/- 5 < 16 05/23/13 05/30/13 25 +/-4 < 10 05/30/13 06/06/13 23+/- 5 < 18 06/06/13 06/12113 14+/- 5 < 24 06/12/13 06/20/13 22 +/-4 < 22 06/20/13 06126113 38 +/-5 < 17 06/26/13 07/04/13 16 +/-4 < 27 07/04/13 07/10/13 (1) (1) 07/10/13 07/18/13 31 +/-6 < 35 07/18/13 07/25/13 19+/- 5 < 22 07/25/13 08/01/13 19+/- 4 < 21 08/01/13 08/08/13 28 +/-5 < 18 08/08/13 08/15/13 24 +/- 5 < 21 08/15/13 08/21/13 30 +/- 5 < 17 08/21/13 08/29/13 36 +/- 5 < 17 08/29/13 09/05/13 38 +/- 5 < 17 09/05/13 09/12/13 41 +/- 5 < 25 09/12/13 09/19/13 18 +/- 4 < 14 09/19/13 09/25/13 20 +/- 5 < 20 09/25/13 10102/13 25 +/- 5 <8 10/02/13 10/10/13 38 +/- 5 < 21 10/10/13 10/17/13 25 +/- 4 < 16 10/17/13 10/24/13 27 +/- 5 < 25 10/24/13 10/31/13 29 +/- 5 < 14 10/31/13 11/07/13 27 +/- 5 < 12 11/07/13 11/14/13 16 +/- 4 < 26 11/14/13 11/21113 28 +/- 5 <9 11/21/13 11127113 20 +/- 5 < 19 11/27/13 12/05/13 48 +/- 5 < 15 12/05/13 12/11/13 27 +/- 5 < 21 12/11/13 12/19/13 40 +/- 5 < 10 12/19/13 12/26/13 25 +/- 4 < 22 12/26/13 01/02/14 28 +/- 5 < 24 MEAN 26 +/- 19 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION D-8

TABLE D-V.2 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA SITE COLLECTION Be-7 Cs-134 Cs-137 PERIOD E1-2Q 01/02/13 - 03/28/13 60 +/- 18 < 1.2 < 0.6 03/28/13 - 06/26/13 95 +/- 14 < 0.4 < 0.7 06/26/13 - 10/02/13 95 +/- 18 < 1.0 < 0.5 10/02/13 - 01/02/14 77 +/- 16 < 0.9 < 0.5 MEAN 82 +/- 34 - -

D-9

TABLE D-VI.1 CONCENTRATIONS OF 1-131 BY CHEMICAL SEPARATION, GAMMA EMITTERS, AND STRONTIUM IN MILK SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 Sr-89 Sr-90 DATE G2-1Q 01/16/13 S0A4 774 t 123 <8 <6 < 33 <5 02/13/13 < 0.4 1069 +/- 85 <4 <2 *19 <6 03/13/13

0.4 913 +/- 87 <4 <4

20 <4 03/27/13

0.5 1428 +/- 113 <3 <3 *16 <5 < 0.6 < 0.5 04/10/13

0.3 946 +/- 98 <6 <4

24 <5 04/24/13

0.4 1275 +/- 97 <4 <4

18 <3 05/08/13

0.4 1287 +/- 113 <3 <4

16 <4 05/22/13

0.3 1126 +/- 85 <3 <4

12 <3 06/05/13

0.5 952 +/- 78 <3 <3

28 <7 06/19/13

0.3 918 +/- 121 <4 <6

23 <5 < 0.6 < 0.5 07/03/13

0.3 1050 +/- 95 <4 <4

22 <3 07/17/13

0.2 1665 +/- 119 <3 <3

22 <4 07/31/13

0.3 935 +/- 95 <3 <3

28 <3 08/14/13 *0.1 880 +/- 84 <4 <4 < 24 <3 08/28/13

0.3 978 +/- 102 <5 <4

29 <2 09/11/13

0.5 1295 +/- 98 <3 <4 *18 <2 09/25/13

0.2 1086 +/- 100 <3 <4

27 <5 < 0.8 < 0.7 10/09/13

0.5 937 +/- 118 <6 <5 < 44 <5 10/23/13 < 0.4 1002 +/- 84 <4 <2

27 <4 11/06/13

0.3 850 +/- 180 <6 <7 < 43 <2 11/20/13

0.2 1224 +/- 105 <4 <3 <18 <4 12/04/13

0.3 933 +/- 88 <4 <4

28 <4 < 0.5 < 0.5 MEAN 1069 +/- 436 D-10

FIGURE D-1 MONTHLY GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED FROM TMINS LOCATION Q9-1Q, 2013 6

QC-LAB

------ A PRIM A RY - LA B 4

3 C.,

2 1

0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MONTH

FIGURE D-2 WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED FROM TMINS LOCATION E1-2Q, 2013 60 50 40 E

I'-.)

30 C?

wj 20 10 0

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46 49 52 WEEK NO.

APPENDIX E INTER-LABORATORY COMPARISON PROGRAM

Intentionally left blank TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 1 OF 3)

Identification Reported Known Ratio (c)

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

March 2013 E10477 Milk Sr-89 pCi/L 120 99.7 1.20 A Sr-90 pCi/L 9.21 11.0 0.84 A E10478 Milk 1-131 pCi/L 87.1 100 0.87 A Ce-141 pCi/L 186 187 0.99 A Cr-51 pCi/L 463 472 0.98 A Cs-134 pCi/L 201 214 0.94 A Cs-137 pCi/L 262 266 0.98 A Co-58 pCi/L 200 208 0.96 A Mn-54 pCi/L 215 208 1.03 A Fe-59 pCi/L 266 252 1.06 A Zn-65 pCi/L 311 301 1.03 A Co-60 pCi/L 384 400 0.96 A E10480 AP Ce-141 pCi 95.3 95.6 1.00 A Cr-51 pCi 264 241 1.10 A Cs-134 pCi 123 109 1.13 A Cs-1 37 pCi 142 136 1.04 A Co-58 pCi 112 106 1.06 A Mn-54 pCi 115 106 1.08 A Fe-59 pCi 139 129 1.08 A Zn-65 pCi 163 153 1.07 A Co-60 pCi 212 204 1.04 A E10479 Charcoal 1-131 pCi 90.1 92.6 0.97 A E10481 Water Fe-55 pCi/L 1840 1890 0.97 A June 2013 E10564 Milk Sr-89 pCi/L 110 95.0 1.16 A Sr-90 pCi/L 15.8 17.0 0.93 A E10545 Milk 1-131 pCi/L 92.6 95.5 0.97 A Ce-141 pCi/L 83.1 90.4 0.92 A Cr-51 pCi/L 253 250 1.01 A Cs-134 pCi/L 118 125 0.94 A Cs-1 37 pCi/L 143 151 0.95 A Co-58 pCi/L 87.1 94.0 0.93 A Mn-54 pCi/L 171 172 0.99 A Fe-59 pCi/L 125 120 1.04 A Zn-65 pCi/L 220 217 1.01 A Co-60 pCi/L 169 175 0.97 A E10547 AP Ce-141 pCi 56.8 56.7 1.00 A Cr-51 pCi 168 157 1.07 A Cs-134 pCi 85.2 78.4 1.09 A Cs-1 37 pCi 101 94.6 1.07 A Co-58 pCi 62.7 58.9 1.06 A Mn-54 pCi 125 108 1.16 A Fe-59 pCi 85.7 75.0 1.14 A Zn-65 pCi 169 136 1.24 W Co-60 pCi 116 110 1.05 A E10546 Charcoal 1-131 pCi 86.5 89.7 0.96 A E-1

TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 2 OF 3)

Identification Reported Known Ratio (c)

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

June 2013 E10549 Water Fe-55 pCi/L 1610 1610 1.00 A September2013 E10646 Milk Sr-89 pCi/L 63.9 96.0 0.67 N (1)

Sr-90 pCi/L 8.88 13.2 0.67 N (1)

E10647 Milk 1-131 pCi/L 93.9 98.3 0.96 A Ce-141 pCi/L NA (2)

Cr-51 pCi/L 272 277 0.98 A Cs-134 pCi/L 150 172 0.87 A Cs-137 pCi/L 125 131 0.95 A Co-58 pCi/L 105 108 0.97 A Mn-54 pCi/L 138 139 0.99 A Fe-59 pCi/L 125 130 0.96 A Zn-65 pCi/L 264 266 0.99 A Co-60 pCi/L 187 196 0.95 A E10672 AP Ce-141 pCi NA (2)

Cr-51 pCi 208 223 0.93 A Cs-1 34 pCi 143 139 1.03 A Cs-137 pCi 106 105 1.01 A Co-58 pCi 97.0 86.5 1.12 A Mn-54 pCi 116 112 1.04 A Fe-59 pCi 98.6 105 0.94 A Zn-65 pCi 219 214 1.02 A Co-60 pCi 166 158 1.05 A E10648 Charcoal 1-131 pCi 76.3 71.7 1.06 A E10673 Water Fe-55 pCi/L 1790 1690 1.06 A December2013 E10774 Milk Sr-89 pCi/L 97.3 93.8 1.04 A Sr-90 pCi/L 13.3 12.9 1.03 A E10775 Milk 1-131 pCi/L 89.7 96.1 0.93 A Ce-141 pCi/L 99.8 110 0.91 A Cr-51 pCi/L 297 297 1.00 A Cs-134 pCi/L 129 142 0.91 A Cs-137 pCi/L 126 126 1.00 A Co-58 pCi/L 116 112 1.04 A Mn-54 pCi/L 167 168 0.99 A Fe-59 pCi/L 117 110 1.06 A Zn-65 pCi/L 757 741 1.02 A Co-60 pCi/L 141 147 0.96 A E10777 AP Ce-141 pCi 85.1 88.0 0.97 A Cr-51 pCi 278 238 1.17 A Cs-134 pCi 123 114 1.08 A Cs-137 pCi 102 101 1.01 A Co-58 pCi 84.4 89.9 0.94 A Mn-54 pCi 132 135 0.98 A Fe-59 pCi 101 88.3 1.14 A Zn-65 pCi 506 595 0.85 A Co-60 pCi 118 118 1.00 A E-2

TABLE E-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 3 OF 3)

Identification Reported Known Ratio (c)

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

December 2013 E10776 Charcoal 1-131 pCi 84.7 80.5 1.05 A E10778 Water Fe-55 pCi/L 2010 1910 1.05 A (1) Milk, Sr-89/90 - The failure was due to analysterror. No client samples were affected by this failure. NCR 13-15 (2) The sample was not spiked with Ce-141.

(a) Teledyne Brown Engineering reported result.

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

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

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

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

E-3

TABLE E-2 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING, 2013 (PAGE 1 OF 1)

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

May 2013 RAD-93 Water Sr-89 pCi/L 48.3 41.3 31.6- 48.4 A Sr-90 pCi/L 19.3 23.9 17.2 - 28.0 A Ba-133 pCi/L 81.9 82.1 69.0 - 90.3 A Cs-1 34 pCi/L 40.9 42.8 34.2-47.1 A Cs-1 37 pCi/L 44,0 41.7 37.0 - 48.8 A Co-60 pCi/L 61.9 65.9 59.3 - 75.0 A Zn-65 pCi/L 202 189 170-222 A Gr-A pCi/L 34.2 40.8 21.1 -51.9 A Gr-B pCi/L 18.0 21.6 13.0-29.7 A 1-131 pCi/L 23.8 23.8 19.7 -28.3 A U-Nat pCi/L 60.4 61.2 49.8 - 67.9 A H-3 pCi/L 3970 4050 3450 - 4460 A MRAD-18 Filter Gr-A pCi/filter Lost during processing November 2013 RAD-95 Water Sr-89 pCi/L 25.5 21.9 14.4-28.2 A Sr-90 pCi/L 14.3 18.1 12.8-21.5 A Ba-133 pCi/L 57.2 54.2 44.7 - 59.9 A Cs-134 pCi/L 83.3 86.7 71.1 -95.4 A Cs-137 pCi/L 201 206 185-228 A Co-60 pCi/L 104 102 91.8-114 A Zn-65 pCi/L 361 333 300 - 389 A Gr-A pCi/L 29.5 42.8 22.2 - 54.3 A Gr-B pCi/L 30.1 32.2 20.8-39.9 A 1-131 pCi/L 23.1 23.6 19.6 - 28.0 A U-Nat pCi/L 5.53 6.24 4.70 - 7.44 A H-3 pCi/L 17650 17700 15500- 19500 A MRAD-19 Filter Gr-A pCi/filter 33.0 83.0 27.8-129 A (a) Teledyne Brown Engineering reportedresult.

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

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

E-4

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

TELEDYNE BROWN ENGINEERING, 2013 (PAGE 1 OF 2)

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

March 2013 13-MaW28 Water Cs-1 34 Bq/L 21.0 24.4 17.1 -31.7 A Cs-1 37 Bq/L 0.0446 (1) A Co-57 Bq/L 28.3 30.9 21.6-40.2 A Co-60 Bq/L 18.2 19.56 13.69 - 25.43 A H-3 Bq/L 506 507 355 - 659 A Mn-54 Bq/L 25.7 27.4 19.2 - 35.6 A K-40 Bq/L 2.09 (1) A Sr-90 Bq/L 10.5 10.5 7.4- 13.7 A Zn-65 Bq/L 29.2 30.4 21.3-39.5 A 13-GrW28 Water Gr-A Bq/L 2.74 2.31 0.69 - 3.93 Gr-B Bq/L 15.6 13.0 6.5- 19.5 13-MaS28 Soil Cs-1 34 Bq/kg 859 887 621-1153 Cs-1 37 Bq/kg 633 587 411-763 Co-57 Bq/kg 0.256 (1)

Co-60 Bq/kg 738 691 484-898 Mn-54 Bq/kg 0.671 (1)

K-40 Bq/kg 714 625.3 437.7 - 812.9 Sr-90 Bq/kg 442 628 440-816 Zn-65 Bq/kg 1057 995 697-1294 13-RdF28 AP Cs-1 34 Bq/sample 1.73 1.78 1.25-2.31 Cs-137 Bq/sample 2.73 2.60 1.82-3.38 Co-57 Bq/sample 2.38 2.36 1.65-3.07 Co-60 Bq/sample 0.0302 (1)

Mn-54 Bq/sample 4.36 4.26 2.98 - 5.54 Sr-90 Bq/sample 1.43 1.49 1.04- 1.94 Zn-65 Bq/sample 3.14 3.13 2.19-4.07 13-GrF28 AP Gr-A Bq/sample 0.767 1.20 0.36- 2.04 Gr-B Bq/sample 0.871 0.85 0.43- 1.28 13-RdV28 Vegetation Cs-134 Bq/sample -0.197 (1)

Cs-137 Bq/sample 7.39 6.87 4.81 - 8.93 Co-57 Bq/sample 9.87 8.68 6.08 - 11.28 Co-60 Bq/sample 6.08 5.85 4.10-7.61 Mn-54 Bq/sample -0.0104 (1)

Sr-90 Bq/sample 1.28 1.64 1.15-2.13 Zn-65 Bq/sample 6.84 6.25 4.38-8.13 September 2013 13-MaW29 Water Cs-1 34 Bq/L 29.1 30.0 21.0-39.0 Cs-1 37 Bq/L 34.5 31.6 22.1-41.1 Co-57 Bq/L 0.0358 (1)

Co-60 Bq/L 24.6 23.58 16.51 - 30.65 H-3 Bq/L 2.45 (1)

Mn-54 Bq/L 0.0337 (1)

K-40 Bq/L 0.193 (1)

Sr-90 Bq/L 9.12 7.22 5.05 - 9.39 Zn-65 Bq/L 38.1 34.6 24.2 -45.0 13-GrW29 Water Gr-A Bq/L 1.13 0.701 0.210- 1.192 Gr-B Bq/L 7.61 5.94 2.97 - 8.91 E-5

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

TELEDYNE BROWN ENGINEERING, 2013 (PAGE 2 OF 2)

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

September 2013 13-MaS29 Soil Cs-134 Bq/kg 1150 1172 820-1524 A Cs-1 37 Bq/kg 1100 977 684-1270 A Co-57 Bq/kg 670 (1) N (2)

Co-60 Bq/kg 502 451 316-586 A Mn-54 Bq/kg 758 674 472-876 A K-40 Bq/kg 796 633 443-823 W Sr-90 Bq/kg 664 460 322-598 N (2)

Zn-65 Bq/kg 210 (1) N (2) 13-RdF29 AP Cs-134 Bq/sample -0.570 (1) N (2)

Cs-137 Bq/sample 2.85 2.7 1.9-3.5 A Co-57 Bq/sample 3.30 3.4 2.4-4.4 A Co-60 Bq/sample 2.41 2.3 1.6-3.0 A Mn-54 Bq/sample 3.65 3.5 2.5-4.6 A Sr-90 Bq/sample 1.40 1.81 1.27 -2.35 W Zn-65 Bq/sample 2.90 2.7 1.9-3.5 A 13-GrF29 AP Gr-A Bq/sample 0.872 0.9 0.3-1.5 A Gr-B Bq/sample 1.57 1.63 0.82-2.45 A 13-RdV29 Vegetation Cs-134 Bq/sample 5.29 5.20 3.64 - 6.76 A Cs-137 Bq/sample 7.48 6.60 4.62 - 8.58 A Co-57 Bq/sample 0.0129 (1) A Co-60 Sq/sample 0,0523 (1) A Mn-54 Bq/sample 8.78 7.88 5.52 - 10.24 A Sr-90 Bq/sample 1.63 2.32 1.62 - 3.02 W (2)

Zn-65 Bq/sample 3.18 2.63 1.84-3.42 W (1) False positive test.

(2) Soil, Co-57 & Zn-65 identified by gamma software as not detected, MAPEP evaluated as failing the false positive test. A large concentration of Eu-152 was spiked into the sample, causinginterference in the analysis. Gamma software recognized the interference and identified them as not detected. MAPEP does not allow clients to enter non-detect designation.NCR 13-04 Soil, Sr incorrectresults were submitted to MAPEP. Actual result was 332 bq/kg, which is within the acceptance range. NCR 13-04 AP, Cs-134 - MAPEP evaluated the -0. 570 as a failed false positive test. No client samples were affected by these failures.NCR 13-04 Vegetation, Sr it appears that the carrierwas double spiked into the sample, resulting in the low activity for this sample. NCR 13-04 (a) Teledyne Brown Engineeringreported result.

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

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

E-6

TABLE E-4 ERA (a) STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAMa ENVIRONMENTAL, INC., 2013 (Page 1 of 1)

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result (b) Result (c) Limits Acceptance ERW-1593 04/08/13 Sr-89 43.6 +/- 4.3 41.30 31.6 -48.4 Pass ERW-1 593 04/08/13 Sr-90 23.2 +/- 1.7 23.90 17.2 -28.0 Pass ERW-1 596 04/08/13 Ba-133 74.80 4.00 82.10 69.00 90.30 Pass ERW-1 596 04/08/13 Co-60 65.50 3.42 65.90 59.30 75.00 Pass ERW-1596 04/08/13 Cs-1 34 41.10 3.47 42.80 34.20 47.10 Pass ERW-1 596 04/08/13 Cs-1 37 42.30 4.03 41.70 37.00 48.80 Pass ERW-1596 04/08/13 Zn-65 200.3 +/- 10.1 189.0 170.0 - 222.0 Pass ERW-1598 04/08/13 Gr. Alpha 34.30 1.98 40.80 21.10 51.90 Pass ERW-1 598 04/08/13 Gr. Beta 18.70 0.98 21.60 13.00 29.70 Pass ERW-1600 04/08/13 1-131 23.00 +/- 1.10 23.80 19.70 - 28.30 Pass ERW-1600 04/08/13 1-131(G) 23.48 +/- 9.44 23.80 19.70 +/- 28.30 Pass ERW-1606 04/08/13 H-3 4041 +/- 194 4050 3450 -4460 Pass ERW-6009 10/07/13 Sr-89 22.00 2.80 21.90 14.40 28.20 Pass ERW-6009 10/07/13 Sr-90 17.10 2.55 18.10 12.80 21.50 Pass ERW-6012 10/07/13 Ba-1 33 48.20 4.29 54.20 44.70 59.90 Pass ERW-6012 10/07/13 Co-60 100.8 +/- 4.7 102.0 91.8-114.0 Pass ERW-6012 10/07/13 Cs-1 34 87.30 4.35 86.70 71.10 95.40 Pass ERW-6012 10/07/13 Cs-1 37 199.6 +/- 7.4 206.0 185.0 - 228.0 Pass ERW-6012 10/07/13 Zn-65 356.2 +/- 13.2 333.0 300.0 - 389.0 Pass ERW-6015 10/07/13 Gr. Alpha 30.70 11.90 42.80 22.20 54.30 Pass ERW-6015 10/07/13 Gr. Beta 25.70 6.48 32.20 20.80 39.90 Pass ERW-6019 10/07/13 1-131 22.50 1.01 23.60 19.60 28.00 Pass ERW-6024 10/07/13 H-3 18397 695 17700 15500 19500 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., 2013 (Page 1 of 2)

Concentration (a)

Known Control Lab Code (b) Date Analysis Laboratory result Activity Limits (c) Acceptance MAAP-738 02/01/13 Co-57 2.58 +/- 0.06 2.36 1.65 -3.07 Pass MAAP-738 02/01/13 Co-60 0.01 +/- 0.03 0.00 0.00 -0.10 Pass MAAP-738 02/01/13 Cs-1 34 1.82 +/- 0.13 1.78 1.25 -2.31 Pass MAAP-738 02/01/13 Cs-1 37 2.93 +/- 0.10 2.60 1.82 -3.38 Pass MAAP-738 02/01/13 Mn-54 4.87 +/- 0.13 4.26 2.98 - 5.54 Pass MAAP-738 02/01/13 Sr-90 1.39 +/- 0.14 1.49 1.04-1.94 Pass MAAP-738 02/01/13 Zn-65 3.84 +/- 0.20 3.13 2.19 -4.07 Pass MAAP-738 d 02/01/13 Gr. Alpha 0.14 +/- 0.03 1.20 0.36 -2.04 Fail (1)

MAAP-738 02/01/13 Gr. Beta 0.93 +/- 0.06 0.85 0.43 - 1.28 Pass MAW-806 02/01/13 Co-57 31.20 0.40 30.90 21.60 40.20 Pass MAW-806 02/01/13 Co-60 19.70 +/- 0.30 16.56 13.69 -25.43 Pass MAW-806 02/01/13 Cs-1 34 23.20 +/- 0.50 24.40 17.10 -31.70 Pass MAW-806 02/01/13 Cs-1 37 0.03 +/- 0.12 0.00 0.00 -1.00 Pass MAW-806 02/01/13 Fe-55 34.00 +/- 3.30 44.00 30.80 -57.20 Pass MAW-806 02/01/13 H-3 511.60 +/- 12.50 507.00 355.00 -659.00 Pass MAW-806 02/01/13 K-40 2.20 +/- 0.90 0.00 0.00 -5.00 Pass MAW-806 02/01/13 Mn-54 27.60 +/- 0.50 27.40 19.20 -35.60 Pass MAW-806 02/01/13 Sr-90 9.30 +/- 0.80 10.50 7.40 -13.70 Pass MAW-806 02/01/13 Zn-65 31.60 +/- 0.80 30.40 21.30 -39.50 Pass MAW-811 02/01/13 Gr. Alpha 1.87 +/- 0.09 2.31 0.69 - 3.93 Pass MAW-811 02/01/13 Gr. Beta 13.04 +/- 0.13 13.00 6.50 -19.50 Pass MASO-739 02/01/13 Co-57 0.60 +/- 0.50 0.00 0.00 -5.00 Pass MASO-739 02/01/13 Co-60 739.20 +/- 28.50 691.00 484.00 -898.00 Pass MASO-739 02/01/13 Cs-1 34 863.30 +/- 34.10 887.00 621.00 -1153.00 Pass MASO-739 02/01/13 Cs-1 37 661.80 +/- 25.70 587.00 411.00 -763.00 Pass MASO-739 02/01/13 K-40 745.80 +/- 33.30 625.30 437.70 -812.90 Pass MASO-739 02/01/13 Mn-54 1.10 +/- 1.00 0.00 0.00 -5.00 Pass MASO-739 02/01/13 Zn-65 1109.60 +/- 44.10 995.00 697.00 - 1294.00 Pass MASO-744 e 02/01/13 Sr-90 408.40 +/- 14.00 628.00 440.00 - 816.00 Fail (2)

MAVE-747 02/01/13 Co-57 10.37 +/- 0.17 8.68 6.08-11.28 Pass MAVE-747 02/01/13 Co-60 6.48 +/- 0.17 5.85 4.10 -7.61 Pass MAVE-747 02/01/13 Cs-134 0.02 +/- 0.04 0.00 0.00 -0.10 Pass MAVE-747 02/01/13 Cs-1 37 7.79 +/- 0.21 6.87 4.81 -8.93 Pass MAVE-747 02/01/13 Mn-54 0.00 +/- 0.05 0.00 0.00 -0.10 Pass MAVE-747 02/01/13 Zn-65 7.29 +/- 0.33 6.25 4.38 -8.13 Pass MASO-5043 f 08/01/13 Co-57 699.60 +/- 3.90 0.00 0.00 -5.00 Fail (3)

MASO-5043 08/01/13 Cs-134 1191.70 +/- 23.00 1172.00 820.00 -1524.00 Pass MASO-5043 08/01/13 Cs-1 37 1072.00 +/- 5.10 977.00 684.00 - 1270.00 Pass MASO-5043 08/01/13 K-40 760.00 +/- 16.20 633.00 443.00 - 823.00 Pass MASO-5043 08/01/13 Mn-54 753.80 +/- 4.90 674.00 472.000 -876.000 Pass E-8

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

ENVIRONMENTAL, INC., 2013 (Page 2 of 2)

Concentration (a)

Known Control Lab Code (b) Date Analysis Laboratory result Activity Limits (c) Acceptance MASO-5043 08/01/13 Sr-90 383.90 +/- 14.50 460.00 322.00 - 598.00 Pass MASO-5043 08/01/13 Zn-65 -351.50 +/- 5.50 0.00 0.00 - 0.00 Pass MAW-5094 08/01/13 Co-57 0.01 +/- 0.09 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 Co-60 23.20 +/- 0.32 23.58 16.51 - 30.65 Pass MAW-5094 08/01/13 Cs-1 34 27.60 +/- 0.58 30.40 21.00 - 39.00 Pass MAW-5094 08/01/13 Cs-1 37 32.31 +/- 0.52 31.60 22.10 - 41.10 Pass MAW-5094 08/01/13 Fe-55 39.20 +/- 3.50 53.30 37.30 - 69.30 Pass MAW-5094 08/01/13 Gr. Alpha 0.54 +/- 0.05 0.70 0.21 -1.19 Pass MAW-5094 08/01/13 Gr. Beta 5.85 +/- 0.09 5.94 2.97 - 8.91 Pass MAW-5094 08/01/13 H-3 1.20 +/- 3.00 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 K-40 2.22 +/- 0.90 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 Mn-54 0.010 +/- 0.11 0.00 0.00 - 5.00 Pass MAW-5094 08/01/13 Sr-90 6.40 +/- 0.60 7.22 5.05 - 9.39 Pass MAW-5094 08/01/13 Zn-65 35.30 +/- 0.90 34.60 24.20 - 45.00 Pass MAVE-5046 08/01/13 Co-57 0.01 +/- 0.03 0.00 0.00 - 0.00 Pass MAVE-5046 08/01/13 Co-60 0.00 +/- 0.04 0.00 0.00 - 0.00 Pass MAVE-5046 08/01/13 Cs-1 34 5.71 +/- 0.23 5.20 3.64 -6.76 Pass MAVE-5046 08/01/13 Cs-1 37 7.64 +/- 0.20 6.60 4.62 - 8.58 Pass MAVE-5046 08/01/13 Mn-54 9.08 +/- 0.24 7.88 5.52 - 10.24 Pass MAVE-5046 08/01/13 Zn-65 2.92 +/- 0.25 2.63 1.84 -3.42 Pass MAAP-5046 08/01/13 Co-57 3.48 +/- 0.14 3.40 1.90 -3.50 Pass MAAP-5046 08/01/13 Co-60 2.44 +/- 0.08 3.40 1.60 -3.00 Pass MAAP-5046 08/01/13 Cs-1 34 0.01 +/- 0.03 0.00 0.02 - 0.04 Pass MAAP-5046 08/01/13 Cs-137 3.09 +/- 0.13 2.70 1.90 -3.50 Pass MAAP-5046 08/01/13 Gr. Alpha 0.28 +/- 0.04 0.90 0.27 -1.53 Pass MAAP-5046 08/01/13 Gr. Beta 1.90 +/- 0.08 1.63 0.82 - 2.45 Pass MAAP-5046 08/01/13 Mn-54 3.95 +/- 0.12 3.50 2.50 - 4.60 Pass MAAP-5046 08/01/13 Sr-90 1.69 +/- 4.10 1.81 1.27 -2.35 Pass MAAP-5046 08/01/13 Zn-65 3.27 +/- 0.18 2.70 2.50 - 4.60 Pass a Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

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

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

(1) The filter was recounted overnight, no significant alpha activity could be detected.

(2) The sample was reanalyzed using additional fuming nitric separations. Result of reanalysis: 574.4 +/- 35.2 Bq/kg.

(3) Interference from Eu-1 52 resulted in misidentification of Co-57.

E-9

Intentionally left blank APPENDIX F ERRATA DATA

Intentionally left blank Due to an incorrect setting on gamma detector 08, 3.29 rather than 4.66 was used in the minimum detectable concentration (MDC) calculation.

Nonconformance 13-07 was initiated and corrective actions have been implemented to address this issue. All samples counted on detector 08 were reprocessed using the correct calculation. As a result, all MDCs for these samples have increased by 41.6%. The previously reported activities and uncertainties were not affected. In some cases, the increased MDC resulted in missed LLDs. All samples with MDCs affected by this issue are listed below. The samples with missed LLDs are shown in the table for 2011, 2012, and 2013. All other required LLDs were met.

Because of the quantity of tables involved over multiple years, individual tables are not provided. (IR 1646280)

F-i

2011 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS 4Q11 TM-AP-Q15-1 09/28/11 12/28/11 Air Particulate F-2

2012 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS 1Q12 TM-AP-Q15-1 12/28/11 03/28/12 Air Particulate TM-EW-K1-1 01/03/12 01/31/12 Effluent Water OS-16 01/31/12 RGPP 1-131 <15 <16.84 pCi/L TM-M-G2-1 03/07/12 03/07/12 Milk 2Q12 TM-AP-H3-1 03/28/12 06/27/12 Air Particulate TM-M-P4-1 04/18/12 04/18/12 Milk MW-TMI-171 04/30/12 RGPP OSF 04/30/12 RGPP TM-EW-K1-1 05/01/12 05/29/12 Effluent Water MS-2 05/01/12 RGPP MW-TMI-31 05/02/12 RGPP MS-3 05/03/12 RGPP TM-SW-Q9-1 05/29/12 07/03/12 Surface Water TM-M-F4-1 05/30/12 05/30/12 Milk TM-M-P4-1 06/13/12 06/13/12 Milk TM-FPL-B10-2 06/26/12 06/26/12 Vegetation 3Q12 TM-AP-G2-1 06/27/12 10/03/12 Air Particulate 3Q12 TM-AP-Q15-1 06/27/12 09/26/12 Air Particulate TM-M-K15-3 06/27/12 06/27/12 Milk La-140 <15 <19.44 pCi/L TM-FPV-B10-2 07/17/12 07/17/12 Vegetation OS-14 07/24/12 RGPP 1-131 <15 <20.55 pCi/L OS-14 07/24/12 RGPP La-140 <15 <15.9 pCi/L TM-M-F4-1 07/25/12 07/25/12 Milk TM-M-P4-1 07/25/12 07/25/12 Milk TM-SW-J1-2 07/31/12 08/28/12 Surface Water 1-131 <15 <15.45 pCi/L TM-DW-Q9-1 08/28/12 10/02/12 Drinking Water 1-131 <15 <18.1 pCi/L TM-M-F4-1 09/19/12 09/19/12 Milk TM-FPL-B10-2 09/26/12 09/26/12 Vegetation 1-131 <60 <79.06 pCi/kg Wet TM-SW-Q9-1 10/02/12 10/30/12 Surface Water 4Q12 TM-AP-H3-1 10/03/12 01/02/13 Air Particulate MS-8 10/17/12 RGPP 1-131 <15 < 16.04 pCi/L MS-8 10/17/12 RGPP La-140 <15 <17.86 pCi/L TM-M-E2-2 10/17/12 10/17/12 Milk TM-SW-J 1-2 10/30/12 11/27/12 Surface Water EDCB 10/30/12 12/31/12 RGPP TM-M-P4-1 10/31/12 10/31/12 Milk La-140 <15 <15.24 pCi/L TM-SW-Q9-1 11/27/12 12/31/12 Surface Water 1-131 <15 <17.38 pCi/L TM-SW-Q9-1 11/27/12 12/31/12 Surface Water La-140 <15 <18.63 pCi/L F-3

2012 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS TM-M-K15-3 11/28/12 11/28/12 Milk Ba-140 <60 <70.14 pCi/L F-4

2013 START END REQUIRED REVISED CLIENT ID DATE DATE MATRIX NUCLIDE MDC MDC UNITS MS-3 01/22/13 RGPP 1-131 <15 < 19.17 pCi/L TM-M-E2-2 02/13/13 02/13/13 TM-M-F4-1 02/13/13 02/13/13 F-5

Intentionally left blank

APPENDIX G ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

Intentionally left blank Docket No: 50-289 50-320 THREE MILE ISLAND NUCLEAR STATION UNITS I and 2 Annual Radiological Groundwater Protection Program Report (ARGPPR) 1 January Through 31 December 2013 Prepared By Teledyne Brown Engineering Environmental Services SExeton Generation.

Three Mile Island Nuclear Station Middletown, PA 17057 April 2014

Intentionally left blank Table Of Contents I. Sum m ary and Conclusions .......................................................................................... 1 II. Introduction ............................................................................................................. 3 A. Objectives of the RGPP .................................................................................. 3 B. Im plem entation of the Objectives .................................................................. 4 C. Program Description ...................................................................................... 4 D. Characteristics of Tritium (H-3) ...................................................................... 5 I1l. Program Description ................................................................................................ 6 A. Sam ple Analysis ............................................................................................ 6 B. Data Interpretation .......................................................................................... 7 IV. Results and Discussion ........................................................................................... 8 A. Groundwater Results ..................................................................................... 8 B. Surface Water Results .................................................................................. 9 C. Storm W ater Results ..................................................................................... 10 D. Precipitation W ater Results ......................................................................... 11 E. Leaks, Spills, and Releases ......................................................................... 11 F. Actions Taken ................................................................................................ 12

Appendices Appendix A Location Designation Tables Table A-1 Radiological Groundwater Protection Program - Sampling Locations, Distance and Direction, Three Mile Island Nuclear Station, 2013 Figqures Figure A-1 Sampling Locations at the Three Mile Island Nuclear Station, 2013 Appendix B Data Tables Tables Table B-1.1 Concentrations of Tritium, Strontium, Gross Alpha, and Gross Beta in Groundwater Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

Table B-1.2 Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table B-1.3 Concentrations of Hard-To-Detects in Groundwater Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Generating Station, 2013.

Table B-11.1 Concentrations of Tritium in Surface Water Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

Table B-11.2 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table B-ll1.1 Concentrations of Tritium in Storm Water Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

Table B-111.2 Concentrations of Gamma Emitters in Storm Water Samples Collected in the Vicinity of Three Mile Island Nuclear Station, 2013.

Table B-IV.1 Concentrations of Tritium in Precipitation Water Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

ii

Appendix C Data Tables Tables Table C-1.1 Concentrations of Tritium, Strontium, Gross Alpha and Gross Beta in Groundwater Split Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

Table C-1.2 Concentrations of Gamma Emitters in Groundwater Split Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

Table C-1.3 Concentrations of Hard-To-Detects in Groundwater Split Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Generating Station, 2013.

Table C-11.1 Concentrations of Tritium in Surface Water Split Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

Table C-11.2 Concentrations of Gamma Emitters in Surface Water Split Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

Table C-111.1 Concentrations of Tritium in Precipitation Water Split Samples Collected as Part of the Radiological Groundwater Protection Program, Three Mile Island Nuclear Station, 2013.

iii

I. Summary and Conclusions In 2006, Exelon instituted a comprehensive program to evaluate the impact of station operations on groundwater and surface water in the vicinity of Three Mile Island Nuclear Station. At Three Mile Island Nuclear, 31 new permanent groundwater monitoring wells were installed in 2006. The results for all TMI wells are included in this report. This report covers groundwater, surface water, storm water and precipitation samples collected from the environment, both on and off station property in 2013. During that time period 802 analyses were performed on 452 samples from 68 locations.

In assessing all the data gathered for this report, it was concluded that the operation of Three Mile Island Nuclear Station had no adverse radiological impact on the environment.

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, surface water, storm water and precipitation 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-89/90 was not detected at a concentration greater than the LLD of 1.0 picoCurie per liter (pCi/L) in the groundwater samples tested.

Tritium was not detected in any groundwater, surface water, storm water or precipitation water samples at concentrations greater than the United States Environmental Protection Agency (USEPA) drinking water standard (and the Nuclear Regulatory Commission Reporting Limit) of 20,000 pCi/L. Low levels of tritium were detected at concentrations greater than the LLD of 200 pCi/L in 37 of 59 groundwater monitoring locations. The groundwater tritium concentrations ranged from 174 +/- 111 pCi/L to 11,900 +/- 1,240 pCi/L. Tritium that was detected in groundwater at the Station is believed to be the result of a potential leak, historical releases, the recapture of gaseous tritium releases via rainwater and/or background from external sources greater than 200 pCi/L. Tritium was detected in two of five precipitation water locations. The concentration ranged from 218 +/-

116 to 530 +/- 133 pCi/L. Tritium was not detected at any surface water location.

Tritium was detected in three storm water samples. The concentrations ranged from 217 +/- 131 to 289 +/- 116 pCi/L.

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater samples during the second and fourth quarter sampling in 2013. Gross Alpha (dissolved) was detected in two of the 39 groundwater locations. The concentrations were 0.9 and 1.2 pCi/L. Gross Alpha (suspended) was detected in six of 39 groundwater locations. The concentrations ranged from 0.9 to 10.8 pCi/L. Gross Beta (dissolved) was detected at all 39 groundwater locations. The concentrations ranged from 1.6 to 14.7 pCi/L. Gross Beta (suspended) was detected in five of 39 groundwater locations. The concentrations were 2.3 and 6.3 pCi/L.

Hard-To-Detect analyses were performed on a select group of groundwater locations to establish background levels. The analyses included Fe-55, Ni-63, Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-234, U-235 and U-238.

The U-234 isotope was detected at all four groundwater location. The concentration ranged from 0.3 to 4.9 pCi/L. The U-238 isotope was detected at three of four groundwater locations. The concentration ranged from 0.4 to 3.4 pCi/L. The levels detected are from naturally occurring isotopes and are considered background.

All other hard-to-detect nuclides were not detected at concentrations greater than their respective MDCs. The concentrations detected are from naturally occurring isotopes and are considered background.

II. Introduction The Three Mile Island Nuclear Station (TMINS) established a revised and more comprehensive groundwater monitoring program in 2006 as part of an Exelon Nuclear fleetwide assessment.

Conestoga Rovers & Associates (CRA) performed the initial assessment. CRA prepared a Hydrogeologic Investigation Report (HIR) for Exelon to determine whether groundwater at and near TMINS has been adversely impacted by any releases of radionuclides. The CRA report documents the results of the May 2006 Hydrogeologic Investigation Work Plan. CRA assessed groundwater quality at the Station and identified locations designated as Areas for Further Evaluation. The results and conclusions of this Phase 1 study were made available to state and federal regulators, as well as the public on an Exelon web site for station specific reports.

As a result of the Phase 1 study, the Radiological Groundwater Protection Program (RGPP) was revised to a long term monitoring program. This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Environmental Inc. (Midwest Labs) on well water, surface water, precipitation water and storm water samples collected in 2013. TMINS groundwater movement is into the Susquehanna River which surrounds the station on all sides.

This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Environmental Inc. (Midwest Labs) on samples collected in 2013.

A. Objective of the RGPP The long-term objectives of the Radiological Groundwater Protection Program (RGPP) are as follows:

1. Identify suitable locations to monitor and evaluate potential impacts from station operations before significant radiological impact to the environment and potential drinking water sources.

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

3. Perform routine water sampling and radiological analysis of water from selected locations.

4. Notify stakeholders in a timely manner for new leaks, spills, or other detections with potential radiological significance.

5. Regularly assess analytical results to identify adverse trends.

6. Take necessary corrective actions to protect groundwater resources.

B. Implementation of the Objectives The objectives identified have been implemented at Three Mile Island Nuclear Station as discussed below:

1. Three Mile Island Nuclear Station continues to sample and monitor the groundwater at the station in accordance with station procedures.

Sample frequencies and locations are adjusted based on monitoring results and investigations.

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

3. Three Mile Island Nuclear Station will continue to perform routine sampling and radiological analysis of water from selected locations.

4. Three Mile Island Nuclear Station has implemented procedures to identify and report leaks, spills, or other detections with potential radiological significance in a timely manner.

5. Three Mile Island Nuclear Station staff and consulting hydrogeologist assess analytical results on an ongoing basis to identify adverse trends.

C. Program Description

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

Groundwater, Surface Water, Storm Water, and Precipitation Samples of water are collected, managed, transported and analyzed in accordance with approved procedures. Groundwater, surface water, storm water and precipitation 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. For split samples, collectors will periodically collect samples that are sent to Midwest Labs to confirm that TBE is producing comparable data. 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 hydrogeologist 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." Tritiated water behaves chemically and physically like non-tritiated water in the subsurface, and therefore tritiated water will travel at the same velocity as the average groundwater velocity.

Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules. This "cosmogenic" tritium 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.

The chemical properties of tritium are essentially those of ordinary hydrogen. 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, all tritium is essentially cleared.

Organically bound tritium (tritium that is incorporated in organic compounds) can remain in the body for a longer period.

Tritium has a radiological 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 is one of the least dangerous radionuclides, because it emits very weak radiation and leaves the body relatively quickly. Since tritium is almost always found as water, it goes directly into soft tissues and organs. The associated dose to these tissues is generally uniform and is dependent on the water content of the specific tissue.

Ill. Program Description A. Sample Analysis This section describes the general analytical methodologies used by TBE and Midwest Labs to analyze the environmental samples for radioactivity for the Three Mile Island Nuclear Station RGPP in 2013.

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

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

2. Concentrations of strontium in groundwater.

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

4. Concentrations of Am-241 in groundwater.

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

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

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

8. Concentrations of Fe-55 in groundwater.

9. Concentrations of Ni-63 in groundwater.

10. Concentrations of Gross Alpha and Gross Beta (Dissolved and Suspended) in groundwater.

B. Data Interpretation

1. Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is specified by federal regulation as a minimum sensitivity value that must be achieved routinely by the analytical parameter.

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

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, surface water, and storm water 13 nuclides, Be-7, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, Cs-1 34, Cs-1 37, Ba-140 and La-1 40 were reported.

The radio-analytical laboratory is counting tritium results to an LLD of 200 pCi/L. Typically, the lowest positive measurement will be reported within a range of 40 - 240 pCi/L or 140 +/- 100 pCi/L.

Clearly, these sample results cannot be distinguished as different from background at this concentration.

IV. Results and Discussion A. Groundwater Results Samples were collected from on and off-site wells in accordance with the station radiological groundwater protection program.

Analytical results and anomalies are discussed below.

Tritium Samples from 59 locations were analyzed for tritium activity. Tritium values ranged from the detection limit to 11,900 pCi/L (Table B-1.1, Appendix B).

Tritium Split Samples Tritium values ranged from 389 to 7,822 pCi/L (Table C-1.1, Appendix C).

Strontium Strontium-90 was not detected above the required detection limit of 1.0 pCi/L (Table B-1.1, Appendix B).

Strontium Split Samples Strontium-89 and Strontium-90 were not detected above the required detection limit (Table C-1.1, Appendix C).

Gross Alpha and Gross Beta (dissolved and suspended)

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater samples during the second and fourth quarter sampling in 2013. Gross Alpha (dissolved) was detected in two of the 39 groundwater locations. The concentrations were 0.9 and 1.2 pCi/L. Gross Alpha (suspended) was detected in six of 39 groundwater locations. The concentrations ranged from 0.9 to 10.8 pCi/L. Gross Beta (dissolved) was detected at all 39 groundwater locations. The concentrations ranged from 1.6 to 14.7 pCi/L. Gross Beta (suspended) was detected in five of 39 groundwater locations. The concentrations were 2.3 and 6.3 pCi/L (Table B-1.1, Appendix B).

Gross Alpha and Gross Beta Split Samples Four split samples were analyzed for Gross Alpha and Gross Beta in 2013. Gross Alpha was detected one of four samples at a concentration of 2.4 pCi/L. Gross beta was detected in all four sample analyzed. The concentrations ranged from 2.3 to 6.7 pCi/L (Table C-1.1, Appendix C).

Gamma Emitters Potassium-40 was detected in two of 75 samples with concentrations ranging from 82 pCi/L to 91 pCi/L. No other gamma-emitting nuclides were detected (Table B-1.2, Appendix B).

Gamma Emitters Split Samples Seven locations were analyzed for gamma-emitting nuclides in 2013. Potassium-40 was detected in one sample at a concentration of 57 pCi/L. No other gamma-emitting nuclides were detected in any split samples (Table C-1.2, Appendix C).

Hard-To-Detect Hard-To-Detect analyses were performed on a select group of groundwater locations to establish background levels. The analyses included Fe-55, Ni-63, Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-234, U-235 and U-238. The U-234 isotope was detected at all four groundwater location. The concentration ranged from 0.3 to 4.9 pCi/L. The U-238 isotope was detected at three of four groundwater locations. The concentration ranged from 0.4 to 3.4 pCi/L. The concentrations detected are from naturally occurring isotopes and are considered background (Table B-1.3, Appendix B).

Hard-To-Detect Split Samples Hard to detects were not analyzed on any split samples in 2013 (Table C-1.3, Appendix C).

B. Surface Water Results Samples were collected from surface water locations in accordance with the station radiological groundwater protection program.

Analytical results and anomalies are discussed below.

Tritium Three locations were analyzed for tritium in 2013. Tritium was not detected above the required detection limit of 200 pCi/L in any of the 14 samples analyzed (Table B-11.1, Appendix B).

Tritium Split Samples Two locations were analyzed for tritium in 2013. Tritium was not detected above the required detection limit (Table C-11.1, Appendix C).

Strontium Surface water samples were not analyzed for Sr-90 in 2013 (Table B-11.1, Appendix B).

Gamma Emitters Three locations were analyzed for gamma-emitting nuclides in 2013. None of the four samples detected gamma-emitting nuclides (Table B-11.2, Appendix B).

Gamma Emitters Split Samples One location was analyzed for gamma-emitting nuclides in 2013.

No gamma emitting nuclides were detected (Table C-11.2, Appendix C).

C. Storm Water Results Samples were collected from storm water locations in accordance with the station radiological groundwater protection program.

Analytical results and anomalies are discussed below.

Tritium One location was analyzed for tritium. Tritium was detected in one of samples above the required detection limit of 200 pCi/L. A recount and reanalysis was performed and the concentrations ranged from 217 to 289 pCi/L (Table B-Ill.1, Appendix B).

Gamma Emitters Samples from one location were analyzed for gamma-emitting nuclides. No gamma emitting nuclides were detected (Table B-Ill.2, Appendix B).

D. Precipitation Water Results Samples were collected at five locations. The following analyses were performed:

Tritium Samples from five locations were analyzed for tritium activity. Tritium activity was detected at two of five locations. The concentrations ranged from 218 to 530 pCi/L (Table B-IV.1, Appendix B).

Tritium Split Samples Samples from one location were analyzed for tritium activity. Tritium activity was detected in two of four samples. The concentrations ranged from 173 to 244 pCi/L (Table C-111.1, Appendix C).

Gamma Emitters Precipitation water was not analyzed for Gamma Emitters in 2013.

Gamma Emitters Split Samples No gamma-emitting nuclides were analyzed in 2013.

E. Leaks, Spills, and Releases A potential leak was identified at TMI in 2012 due to elevated MS-22 tritium concentration readings. TMI continues to monitor MS-22 and surrounding wells, in addition to tritium plumes from previous years and reports the activity and dose to the public in the ARERR. The elevated MS-22 well tritium concentrations were voluntarily reported under the reporting requirements for the NEI Groundwater Protection Initiative (GPI) as implemented in Exelon's Reportability procedure LS-AA-1120, RAD 1.34. (IR1385497/1515261)

F. Actions Taken

1. Compensatory Actions TMI has an extensive groundwater monitoring program with over 50 monitoring wells. No monitoring wells outside the investigation area have seen elevated tritium.

In 2013, TMI installed eight new wells to help isolate the area of the leak. The tritium concentrations in the new wells ranged from 222 to 7,870 pCi/L. TMI also mitigated a number of potential sources for tritium during 2013. The Borated Water Storage Tank (BWST) tunnel sump was repaired and recoated and the BWST had an internal surface inspection during the TMI refueling outage. Additionally, an active input to the BWST tunnel sump (packing leak-off of a BWST isolation valve) was corrected. Two different leaks on the Condensate Storage Tank B were also identified and repaired. Finally, in December BS-T-1 & 2 and ancillary piping were drained and emptied.

Intentionally left blank APPENDIX A LOCATION DESIGNATION & DISTANCE

Intentionally left blank TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations and Distance, Three Mile Island Nuclear Station, 2013 Site Site Type

3 Monitoring Well 48N Monitoring Well 48S Production Potable Well E1-2 Monitoring Well, Offsite EDCB Storm Water GP-12 Monitoring Well GP-6 Monitoring Well GP-8 Monitoring Well GP-9 Monitoring Well MS-1 Monitoring Well MS-19 Monitoring Well MS-2 Monitoring Well MS-20 Monitoring Well MS-21 Monitoring Well MS-22 Monitoring Well MS-3 Monitoring Well MS-4 Monitoring Well MS-5 Monitoring Well MS-6 Monitoring Well MS-7 Monitoring Well MS-8 Monitoring Well MW-1 Monitoring Well MW-2 Monitoring Well MW-3 Monitoring Well MW-4 Monitoring Well N2-1 Monitoring Well, Offsite NW-A Production Well NW-B Production Well NW-C Production Well NW-CW Clearwell OS-13B Monitoring Well OS-14 Monitoring Well OS-16 Monitoring Well OS-17 Monitoring Well OS-18 Monitoring Well OSF Production Potable Well RW-1 Monitoring Well RW-2 Monitoring Well SW-E-1 Surface Water SW-E-2 Surface Water SW-E-3 Surface Water MW-TMI-9S* Monitoring Well MW-TMI-10D Monitoring Well MW-TMI-101 Monitoring Well MW-TMI-10S Monitoring Well MW-TMI-11S* Monitoring Well MW-TMI-12S Monitoring Well MW-TMI-131 Monitoring Well MW-TMI-13S Monitoring Well MW-TMI-14D Monitoring Well MW-TMI-141 Monitoring Well MW-TMI-14S Monitoring Well MW-TMI-16D Monitoring Well MW-TMI-161 Monitoring Well MW-TMI-17D Monitoring Well MW-TMI-171 Monitoring Well MW-TMI-18D Monitoring Well MW-TMI-19D Monitoring Well MW-TMI-191 Monitoring Well MW-TMI-1D Monitoring Well MW-TMI-20D** Monitoring Well A-i

TABLE A-1: Radiological Groundwater Protection Program - Sampling Locations and Distance, Three Mile Island Nuclear Station, 2013 Site Site Type MW-TMI-201** Monitoring Well MW-TMI-21D** Monitoring Well MW-TMI-211** Monitoring Well MW-TMI-21S** Monitoring Well MW-TMI-22D** Monitoring Well MW-TMI-221** Monitoring Well MW-TMI-22S** Monitoring Well MW-TMI-2D Monitoring Well MW-TMI-31 Monitoring Well MW-TMI-41 Monitoring Well MW-TMI-4S Monitoring Well MW-TMI-5D Monitoring Well MW-TMI-6D Monitoring Well MW-TMI-61 Monitoring Well MW-TMI-7S Monitoring Well MW-TMI-8S Monitoring Well MW-TMI-91 Monitoring Well MW-TMI-9S Monitoring Well TRAINING CENTER Offsite Monitoring Well TM-PR-ESE Precipitation Water TM-PR-MS-1 Precipitation Water TM-PR-MS-2 Precipitation Water TM-PR-MS-20 Precipitation Water TM-PR-MS-22 Precipitation Water TM-PR-MS-4 Precipitation Water TM-PR-NW-B Precipitation Water

NO WATER PRESENT TO SAMPLE

- NEW WELLS INSTALLED 2013 A-2

Sampling Locations A Z -I11AW'I at Three Mile Island Nuclear Station 2~

75 550 1,1too Fee( INI*f'.1ylpm** .............

400 Old Reading Pike ldg A Suite101 Stowe, PA 19444

'0W0tlt3 I ,a ser. zzns r. w Wn Figure A - I Sampling Locations at the Three Mile Island Nuclear Station, 2013 A-3

Intentionally left blank APPENDIX B DATA TABLES

Intentionally left blank TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE 3 01123/13 < 178 3 04/23113 269 + 134 < 7.6 < 0.7 < 0.4 1.3 +/- 0.8 2.1 +/- 0.7 2.3 +/- 1.1 3 07/24/13 < 161 3 10/23/13 < 172 48S 01/21/13

181 48S 02/19/13

181 48S 04/15/13 < 193 48S 04/25/13 < 183 <8.4 <0.7 <1.4 < 0.4 2.4 +/- 1.2 < 1.6 48S 05/20/13 < 166 48S 07/01/13 < 171 48S 07/25/13 < 186 48S 09/04/13 < 168 48S 10/24/13 < 177 MS-1 01/23/13 < 175 MS-1 04/25/13 < 179 <9.0 <0.8 <2.3 < 0.4 5.4 +/- 1.5 < 1.6 MS-1 07/23/13

188 MS-1 10/22/13 195 + 121 MS-19 01/23/13 < 171 MS-19 04/24/13 < 179 < 7.3 < 0.7 < 0.7

0.4 3.0 +/-0.9 < 1.5 MS-19 07/24/13

182 MS-19 10/23/13 < 176 MS-2 01/22/13 467 +/- 148 MS-2 01/22/13 536 +/- 136 MS-2 04/23/13 359 +/- 143

6.6 < 0.7 < 0.6 < 0.7 3.8 +/-0.9 < 1.6 MS-2 07/23/13 226 +/- 110 MS-2 10/22/13 219 +/- 125 MS-20 01/07/13 588 +/- 138 MS-20 01/14/13 514 +/- 136 MS-20 01/21/13 652 +/- 137 MS-20 01/28/13 698 +/- 159 MS-20 02/04/13 < 169 MS-20 02/11/13 293 +/- 133 MS-20 02/19/13 455 +/- 131 MS-20 02/25/13 518 +/- 156 MS-20 03/04/13 349 +/- 129 MS-20 03/11/13 371 +/- 151 MS-20 03/18/13 369 +/- 144 MS-20 03/25/13 533 +/- 131 MS-20 04/01/13 540 +/- 138 MS-20 04/08/13 569 +/- 134 MS-20 04/15/13 754 +/- 164 MS-20 04/18/13 521 +/- 127 MS-20 04/22/13 893 +/- 147 < 7.9 < 0.6 < 0.6 < 0.4 4.0 +/-0.9 < 1.6 MS-20 04/29/13 567 +/- 142 MS-20 05/06/13 526 +/- 150 MS-20 05/13/13 535 +/- 137 MS-20 05/20/13 435 +/- 124 MS-20 05/28/13 237 +/- 141 MS-20 06/03/13 316 +/- 127 MS-20 06/10/13 430 +/- 130 B-I

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE MS-20 06/17/13 378 +/- 133 MS-20 06/24/13 342 +/- 126 MS-20 07/01/13 415 +/- 127 MS-20 07/08/13 512 +/- 132 MS-20 07/15/13 547 +/- 144 MS-20 07/23/13 415 +/- 138 MS-20 09/03/13 640 +/- 133 MS-20 10/22/13 742 +/- 141 MS-20 10/22/13 528 +/- 134 MS-20 11/25/13 620 +/- 158 MS-20 12/16/13 416 +/- 133 MS-21 01/22/13 278 +/- 123 MS-21 04/23/13 270 +/- 140 < 7.7 < 0.8 < 0.6 < 0.4 1.9 +/- 0.7 < 1.4 MS-21 07/23/13 289 +/- 113 MS-22 01/07/13 4350 +/- 482 MS-22 01/14/13 6230 +/- 670 MS-22 01/21/13 3960 +/- 435 MS-22 01/28/13 6310 +/- 672 MS-22 02/04/13 3010 +/- 349 MS-22 02/11/13 4200 +/- 477 MS-22 02/19/13 3050 +/- 358 MS-22 02/25/13 5070 +/- 541 MS-22 03/04/13 2450 +/- 298 MS-22 03/11/13 2570 +/- 319 MS-22 03/18/13 2570 +/- 312 MS-22 03/25/13 3070 +/- 352 MS-22 04/01/13 4150 +/- 474 MS-22 04/08/13 6260 +/- 668 MS-22 04/15/13 11000 +/- 1150 MS-22 04/18/13 9870 +/- 1020 MS-22 04/22/13 9650 +/- 1010 < 6.8 < 0.7 < 0.8 3.5 +/- 1.1 4.7 +/- 0.9 6.0 +/- 1.4 MS-22 04/29/13 9470 +/- 995 MS-22 05/06/13 11900 +/- 1240 MS-22 05/13/13 7110 +/- 758 MS-22 05/20/13 9450 +/- 985 MS-22 05/28/13 4560 +/- 529 MS-22 06/03/13 6110 +/- 663 MS-22 06/10/13 4480 +/- 501 MS-22 06/17/13 2310 +/- 283 MS-22 06/24/13 5830 +/- 633 MS-22 07/01/13 8260 +/- 864 MS-22 07/08/13 8690 +/- 910 MS-22 07/15/13 9080 +/- 945 MS-22 07/22/13 9830 +/- 1020 MS-22 07/29/13 1860 +/- 248 MS-22 08/05/13 4720 +/- 527 MS-22 08/12/13 6120 +/- 651 MS-22 08/19/13 1980 +/- 245 MS-22 08/26/13 6900 +/- 728 MS-22 09/03/13 5180 +/- 561 B-2

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE MS-22 09/09/13 6750 +/- 729 MS-22 09/16/13 5910 +/- 629 MS-22 09/23/13 5070 +/- 551 MS-22 09/30/13 3090 +/- 356 MS-22 10/07/13 2720 +/- 324 MS-22 10/22/13 2050 +/- 251 MS-22 11/04/13 4100 +/- 452 MS-22 11/25/13 Origina 1 6290 +/- 679 MS-22 11/25/13 Recour it 5890 +/- 634 MS-22 12/16/13 1190 +/- 182 MS-3 01/22/13 513 +/- 134 MS-3 04/23/13 596 +/- 157 < 6.7 < 0.6 < 0.7 1.3 +/- 0.8 7.0 +/- 1.1 < 1.6 MS-3 07/23/13 471 +/- 128 MS-3 07/23/13 388 +/- 136 MS-3 10/22/13 233 +/- 126 MS-4 04/23/13 217 +/- 136 MS-4 01/22/13

176 MS-5 04/23/13

199 < 6.9 < 0.8 0.9 +/- 0.6 < 0.7 5.7 +/- 1,0 < 1.6 MS-5 04/23/13

200 < 7.8 < 1.0 < 0.7 < 0.6 5.5 +/- 1.1 < 1.8 MS-5 07/23/13

159 MS-5 10/22/13

187 MS-7 01/23/13

179 MS-7 04125/13

180 < 7.0 < 0.7 < 0.4 < 0.7 2.0 +/- 0,6 < 1.6 MS-7 07/24/13

189 MS-7 07/24/13

191 MS-7 10/23/13

180 MS-8 01/07/13 267 +/- 121 MS-8 01/21/13 368 +/- 121 MS-8 02/04/13

167 MS-8 02/19/13 303 +/- 126 MS-8 MVS-8 03/04/13 198 +/- 117 MVS-8 03/18/13 297 +/- 136 IVS-8 04/01/13 268 +/- 130 IVS-8 04/15/13 328 +/- 139 MVS-8 04/23/13

195 < 6.9 < 0.7 < 0.6 10.8 +/- 1.9 12.9 +/- 1.2 6.3 +/- 1.5 MVS-8 05/06/13 199 +/- 131 MVS-8 05/20/13 174 - 111 MVS-8 06/03/13 303 + 126 IVS-8 06/17/13 194 +/- 123 MVS-8 07/01/13 289 +/- 118 MVS-8 07/23/13 318 +/- 119 MVS-8 09/03/13 322 121 MS-a 10/22/13 277 + 129 04/25/13

177 MW-2 04/25/13

179 MW-2 04/25/13

196 MW-TMI-10D 01/22/13 234 + 121 MW-TMVI-10D 04/24/13 < 180 MW-TMVI-10D 07/24/13 332 +/- 119 MW-TMI-10D 10/23/13 292 + 134 B-3

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE MW-TMI-10D 10/23/13 323 +/- 127 MW-TMI-101 01/22/13 752 +/- 148 MW-TMI-101 01/22/13 987 +/- 175 MW-TMI-101 04/24/13 1020 +/- 167 < 7.6 < 0.7 < 0.7 < 0.7 4.2 +/- 1.0 < 1.6 MW-TMI-101 07/24/13 903 +/- 147 MW-TMI-101 10/23/13 818 +/- 161 MW-TMI-10S 01/22/13 1080 +/- 171 MW-TM I-10S 04/24113 1530 +/- 211

6.5

0.7 < 1.1 < 0.7 6.6 +/- 1.2 < 1.6 MW-TMI-10S 07/24/13 1940 +/- 241 MW-TM I-10S 10/23/13 1170 +/- 179 MW-TMI-12S 01/23/13 < 176 MW-TMI-12S 04/23/13 < 191 < 6.6 < 0.7 < 0.5 1.4 +/- 0.8 5.8 +/- 0.8 3.1 +/- 1.2 MW-TMI-12S 07/24/13 < 159 MW-TMI-12S 10/23/13 < 178 MW-TMI-131 01/22/13 326 +/- 126 MW-TMI-131 04/24/13 341 +/- 127 MW-TMI-131 07/24/13 415 +/- 123 MW-TMI-131 10/22/13 295 +/- 135 MW-TMI-131 10/22/13 388 +/- 130 MW-TMI-13S 01122/13 239 +/- 123 MW-TMI-13S 04124/13 282 +/- 124 < 3.3 < 0.7 < 0.7 < 0.4 5.2 +/- 1.0 < 1.5 MW-TMI-13S 07/24/13 422 +/- 124 MW-TMI-13S 10/22/13

186 MW-TMI-14D 01/23/13 473 +/- 136 MW-TMI-14D 04/24/13 289 +/- 125 MW-TMI-14D 07/24/13 < 181 MW-TMI-14D 10/23/13 345 +/- 136 MW-TMI-141 01/23/13 < 179 MW-TMI-141 04/24/13 < 180 MW-TMI-141 07/24/13 < 184 MW-TMI-141 10/23/13 250 +/- 131 MW-TMI-14S 01/23/13 < 174 MW-TMI-14S 01/23/13 < 174 MW-TMI-14S 04/24/13 < 177 < 8.1 < 0.7 < 0.6 < 0.4 2.8 +/- 0.8 < 1.6 MW-TMI-14S 07/24/13 < 188 MW-TMI-14S 10/23/13

185 MW-TMI-16D 01124/13 439 +/- 129 MW-TMI-16D 01/24/13 520 +/- 150 MW-TMI-16D 04/25/13 602 +/- 139 MW-TMI-16D 07123113 389 +/- 132 MW-TMI-16D 10122/13 744 +/- 147 MW-TMI-161 01/24/13 249 +/- 120 MW-TMI-161 04/25/13 185 +/- 117 MW-TMI-161 07/23/13

183 MW-TMI-161 10/22/13 < 176 MW-TMI-171 04/22/13 < 179 MW-TMI-18D 04/24/13 < 200 MW-TMI-191 04/24/13 < 182 MW-TMI-1D0 04/24/13 230 +/- 121 MW-TMI-20D 07/15/13 413 +/- 137 B-4

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE MW-TMI-20D 07/22/13 287 +/- 133 MW-TMI-20D 07/29/13 234 +/- 141 MW-TMI-20D 09/04/13 222 +/- 127 MW-TMI-20D 10/21/13 274 +/- 123 < 4.5 < 0.7 < 2.7 < 0.5 5.1 +/- 1.5 < 1.6 MW-TMI-201 07/15/13 496 +/- 142 MW-TMI-201 07/22/13 493 +/- 148 MW-TMI-201 07/29/13 435 +/- 154 MW-TMI-201 09/04/13 335 +/- 130 MW-TMI-201 10/21/13 435 +/- 134 < 3.6 < 0.5 < 4.3 < 0.4 14.7 +/- 2.0 < 1.6 MW-TMI-21D 07/15/13 2850 +/- 332 MW-TMI-21D 07/16/13 2530 +/- 299 MW-TMI-21D 07/22/13 2790 +/- 328 MW-TMI-21 D 07/29/13 3040 +/- 362 MW-TMI-21D 08/05/13 2540 +/- 297 MW-TMI-21 D 08/12/13 2370 +/- 284 MW-TMI-21 D 08/19/13 3160 +/- 371 MW-TMI-21 D 08/26/13 2810 +/- 323 MW-TMI-21 D 09/03/13 2450 +/- 306 MW-TMI-21 D 09/09/13 2650 +/- 313 MW-TMI-21D 09/16/13 2800 +/- 318 MW-TMI-21D 09/23/13 2650 +/- 362 MW-TMI-21D 09/30/13 2800 +/- 333 MW-TMI-21D 10/07/13 2410 +/- 285 MW-TMI-21D 10/21/13 2770 +/- 334 < 5.0 < 0.5 < 1.7 < 0.9 3.0 +/- 1.1 < 1.6 MW-TMI-21D 11/04/13 3150 +/- 366 MW-TMI-21D 11/25/13 2720 +/- 321 MW-TMI-21D 12/16/13 2890 +/- 334 MW-TMI-21 I 07/15/13 584 +/- 148 MW-TMI-21 I 07/22/13 723 +/- 159 MW-TMI-21 I 07/29/13 539 +/- 156 MW-TMI-21 I 08/05/13 820 +/- 140 MW-TMI-21 I 08/12/13 937 +/- 149 MW-TMI-21 I 08/19/13 1360 +/- 199 MW-TMI-21 I 08/26/13 Original 1680 +/- 214 MW-TMI-211 08/26/13 Recount 1790 +/- 230 MW-TMI-211 09/03/13 1770 +/- 240 MW-TMI-211 09/09/13 2730 +/- 320 MW-TMI-21 I 09/16/13 3900 +/- 427 MW-TMI-211 09/23/13 4940 +/- 582 MW-TMI-211 09/30/13 5760 +/- 625 MW-TMI-211 10/07/13 4080 +/- 449 MW-TMI-21 I 10/21/13 5500 +/- 587 < 5.5 < 0.6 < 0.9

0.9 2.9 +/- 0.7 < 1.6 MW-TMI-21 I 10/21/13 6290 +/- 684 < 5.5 < 0.7 < 1.1

0.9 2.9 +/- 0.8 < 1.6 MW-TMI-21 I 11/04/13 4440 +/- 493 MW-TMI-21 I 11/25/13 4730 +/- 519 MW-TMI-21 I 12/16/13 1690 +/- 216 MW-TMI-21S 07/15/13 736 +/- 156 MW-TMI-21 S 07/22/13 652 +/- 157 MW-TMI-21S 07/29/13 660 +/- 166 MW-TMI-21S 08/05/13 840 +/- 144 B-5

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE MW-TMI-21S 08/12/13 662 +/- 136 MW-TMI-21S 08/19/13 652 +/- 149 MW-TMI-21S 08/26/13 832 +/- 137 MW-TMI-21S 09/03/13 439 +/- 138 MW-TMI-21S 09/09/13 504 +/- 127 MW-TMI-21S 09/16/13 702 +/- 133 MW-TMI-21S 09123113 361 +/- 171 MW-TMI-21S 09/30/13 641 +/- 153 MW-TMI-21S 10/21/13 387 +/- 149 < 4.5 < 0.5 < 0.7 < 1.1 9.0 +/- 1.0 < 1.6 MW-TMI-21S 11/04113 536 +/- 148 MW-TMI-21S 11/25/13 692 +/- 145 MW-TM I-21 S 12/16/13 940 +/- 148 MW-TMI-22D 07/15/13 4910 +/- 534 MW-TMI-22D 07/22/13 4640 +/- 508 MW-TMI-22D 07/29113 5550 +/- 607 MW-TMI-22D 08/05/13 4670 +/- 507 MW-TMI-22D 08/12/13 4810 +/- 525 MW-TMI-22D 08/19/13 5360 +/- 587 MW-TMI-22D 08/26/13 5130 +/- 551 MW-TMI-22D 09/03/13 4890 +/- 545 MW-TMI-22D 09/09/13 4790 +/- 524 MW-TMI-22D 09/16/13 4670 +/- 504 MW-TMI-22D 09/23/13 4090 +/- 502 MW-TMI-22D 09/30/13 4590 +/- 509 MW-TMI-22D 10/07/13 4860 +/- 528 MW-TMI-22D 10/21/13 5320 +/- 584 < 5.4 < 0.6 < 0.9 < 1.1 5.2 +/- 1.0 < 1.6 MW-TMI-22D 11/04/13 5580 +/- 605 MW-TMI-22D 11/25/13 4940 +/- 539 MW-TMI-22D 12/16/13 3980 +/- 439 MW-TMI-221 07/15/13 6540 +/- 696 MW-TMI-221 07/16/13 6910 +/- 730 MW-TMI-221 07/22/13 6150 +/- 660 MW-TMI-221 07/29/13 7050 +/- 757 MW-TMI-221 08/05/13 6540 +/- 691 MW-TMI-221 08/12/13 6080 +/- 651 MW-TMI-221 08/19/13 7560 +/- 803 MW-TMI-221 08/26/13 6990 +/- 737 MW-TMI-221 09/03/13 6610 +/- 716 MW-TMI-221 09/09/13 7370 +/- 779 MW-TMI-221 09/16113 7310 +/- 767 MW-TMI-221 09/23/13 6470 +/- 732 MW-TMI-221 09/30/13 7870 +/- 835 MW-TMI-221 10/07/13 6230 +/- 659 MW-TMI-221 10/21113 7870 +/- 837 <4.1 < 0.4 < 0.9 < 1.1 7.8 +/- 1.0 < 1.6 MW-TMI-221 11/04/13 7540 +/- 799 MW-TMI-221 11/25/13 7750 +/- 817 MW-TMI-221 12/16/13 6790 +/- 719 MW-TMI-22S 07/15113 7350 +/- 774 MW-TMI-22S 07/16/13 7410 +/- 781 MW-TMI-22S 07/22/13 6910 +/- 735 B-6

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE MW-TMI-22S 07/22/13 7320 +/- 776 MW-TMI-22S 07/29/13 7190 +/- 773 MW-TMI-22S 08/05/13 6240 +/- 663 MW-TMI-22S 08/12/13 5710 +/- 614 MW-TMI-22S 08/19/13 5290 +/- 579 MW-TMI-22S 08/26/13 4870 +/- 526 MW-TMI-22S 09/03/13 5990 +/- 653 MW-TMI-22S 09/09/13 5790 +/- 622 MW-TMI-22S 09/16/13 5130 +/- 551 MW-TMI-22S 09/23/13 3250 +/- 416 MW-TMI-22S 09/30/13 2800 +/- 328 MW-TMI-22S 10/07/13 2650 +/- 310 MW-TMI-22S 10/21/13 3560 +/- 414 < 4.9 < 0.6 < 0.7 < 1.1 9.2 +/- 1.0 < 1.6 MW-TMI-22S 11/04/13 3330 +/- 385 MW-TMI-22S 11/25/13 Origina 1 4540 +/- 497 MW-TMI-22S 11/25/13 Recour it 4370 +/- 482 MW-TMI-22S 12/16/13 3860 +/- 426 MW-TMI-2D 01/22/13 200 +/- 120 MW-TMI-2D 04/24/13 323 +/- 141 < 6.0 < 0.6 < 0.5

0.7 4.1 +/- 0.8 < 1.6 MW-TMI-2D 07/24/13 386 +/- 121 MW-TMI-2D 07/24/13 508 +/- 148 MW-TMI-2D 10/22/13 258 +/- 123 MW-TMI-31 01/07/13 < 168 MW-TMI-31 01/21/13 < 179 MW-TMI-31 02/04/13

168 MW-TMI-31 02/19/13 205 +/- 118 MW-TMI-31 03/04/13 178 +/- 118 MW-TMI-31 03/18/13

197 MW-TMI-31 04/01/13

191 MW-TMI-31 04/15/13 328 +/- 140 MW-TMI-31 04/25/13 < 182 < 3.4 < 0.7 < 1.4 < 0.4 3.4 +/- 1.2 < 1.5 MW-TMI-31 05/06/13 329 +/- 139 MW-TMI-31 05/20/13 < 160 MW-TMI-31 06/03/13 200 +/- 122 MW-TMI-31 06/17/13 255 +/- 126 MW-TMI-31 07/01/13 268 +/- 118 MW-TMI-31 07/25/13 304 +/- 126 MW-TMI-31 09/04/13 382 +/- 123 MW-TMI-31 10/23/13 210 +/- 121 MW-TMI-41 04/24/13 < 184 MW-TMI-4S 04/24/13 < 179 MW-TMI-6D 01/23/13

178 MW-TMI-6D 04/25/13

182 < 7.3 < 0.8 < 0.7 < 0.4 2.3 +/- 1.0 < 1.6 MW-TMI-6D 04/25/13 < 194 < 5.2 < 0.8 1.2 +/- 0.7 < 0.6 1.8 +/- 1.0 < 1.8 MW-TMI-6D 07/24/13 216 +/- 111 MW-TMI-6D 10/23/13 < 179 MW-TMI-61 01/23/13 < 175 MW-TMI-61 04/25/13 < 180 < 8.5 < 0.7 < 0.7 < 0.4 4.3 +/- 1.0 < 1.6 MW-TMI-61 07/24/13 < 188 MW-TMI-61 10/23/13 < 186 B-7

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE MW-TMI-7S 04/25/13 < *197 MW-TMI-7S 04125/13 *199 MW-TMI-8S 04/25/13 *179 MW-TMI-91 04/25/13

182 N2-1 01/28/13

174 NW-A 01/22/13 818 +/- 165 NW-A 03/05/13 606 +/- 162 NW-A 04/13/13 672 +/- 158 NW-A 05/12/13 783 +/- 147

6.5 < 0.5 < 0.8

0.8 2.3 +/- 0.8 < 1.5 NW-A 07/01/13

732 NW-A 07/23/13 809 +/- 144 NW-A 09/08/13 854 +/- 144 NW-A 10/22/13 841 +/- 149 NW-B 03/05/13 246 +/- 142 NW-B 04/13/13 449 +/- 145 NW-B 05/12/13 201 +/- 119

6.9 < 0.6 < 0.7

0.8 2.9 +/- 0.8 < 1.5 NW-B 07/01/13

464 NW-B 07/23/13 359 +/- 119 NW-B 09/08/13 266 +/- 112 NW-B 10/22/13 184 +/- 117 NW-C 01/22/13 1060 +/- 178 NW-C 03/05/13 1220 +/- 194 NW-C 04/13/13 1310 +/- 191 NW-C 05/12/13 1170 +/- 177 < 5.4 < 0.6 < 0.8

0.8 1.6 +/- 0.8 < 1.5 NW-C 07/01113

751 NW-C 07/23/13 1270 +/- 189 NW-C 07/23/13 1140 +/- 165 NW-C 09/08/13 1010 +/- 153 NW-C 10/22/13 1110 +/- 175 NW-CW 01/22/13 558 +/- 136 NW-CW 03/08/13 744 +/- 172 NW-CW 05/12/13

177 < 7.1 < 0.6 < 0.6

0.8 3.0 +/- 0.7 < 1.5 NW-CW 07/02/13 < 479 NW-CW 07/23/13 632 +/- 150 NW-CW 10/22/13 233 +/- 117 OS-14 01/22/13

173 OS-14 04/23/13

179 < 7.5 < 0.5 < 0.9

0.4 9.1 +/- 1.3 < 1.5 OS-14 07/23/13

186 OS-14 10/22/13

179 OS-16 01/22/13 666 +/- 143 OS-16 04/23/13 404 +/- 142 < 8.0 < 0.7 < 0.6

0.5 5.5 +/- 0.8 < 1.4 OS-16 07/23/13

158 OS-16 10/22/13 220 +/- 124 OS-18 01/23/13

178 OS-18 04/25/13

177 < 7.6 < 0.8 < 0.7 0.9 +/- 0.6 4.7 +/- 1.1 < 1.6 OS-18 07/25/13

182 OS-18 10/22/13

179 OSF 01/21/13 455 +/- 128 OSF 02/19/13 263 +/- 121 OSF 04/15/13 333 +/- 137 B-8

TABLE B-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION H-3 Sr-89 Sr-90 Gr-A (DIS) Gr-A (SUS) Gr-B (DIS) Gr-B (SUS)

DATE OSF 04/25/13 651 +/- 140 < 7.5 < 0.8 < 1.6 < 0.4 5.5 +/- 1.3 < 1.6 OSF 05/20/13 < 162 OSF 07/08/13 310 +/- 120 OSF 07/25/13 226 +/- 125 OSF 09/04/13 417 +/- 125 OSF 10/24/13 235 +/- 120 RW-1 01/23/13 < 179 RW-1 04/23/13

199 < 7.8 < 0.6 < 0.8 < 0.4 3.9 + 0.9 < 1.4 RW-1 07/24/13 < 185 RW-1 10/23/13 < 174 RW-2 01/23/13 < 176 RW-2 04/23/13 < 196 < 7.4 < 0.7 < 0.4 < 0.7 6.2 + 0.9 < 1.5 RW-2 04/23/13 < 189 < 6.7 < 0.7 < 0.6 < 0.6 5.5 + 0.9 3.4 +/- 1.3 RW-2 07/24/13 224 +/- 113 RW-2 10/23/13 < 179 TRAINING CENTER 04/25/13 < 179 B-9

TABLE B-I.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 DATE 3 04/23/13 < 20 < 18 <2 <2 <5 <2 <4 <2 <4 <2 <2 <15 <5 48S 04/25/13 < 41 < 65 <4 <4 <10 <4 <9 <5 <8 <4 <4

28 <8 MS-1 04/25/13 < 52 < 60 <6 <5 <10 <7 < 14 <6 < II <6 <6

31 < 13 MS-19 04/24/13 < 47 < 37 <4 <4 <9 <5 <9 <5 < 10 <4 <5

31 <8 MS-2 04/23/13 < 29 < 59 <3 < 3 <7 <3 <6 <3 <6 <3 <3

20 <9 MS-20 04/22/13 < 35 < 66 <4 <4 <9 <4 <8 <4 <7 <3 <4

23 <9 MS-21 04/23/13 < 17 < 15 <2 < 2 <4 <2 <3 <2 <3 <2 <2 <13 <4 MS-22 04/22/13 < 32 < 59 <3 <3 <8 <3 <7 <4 <6 <3 <3

26 <7 MS-3 01/22/13 < 47 < 101 <5 <6 <12 <6 <11 <6 <11 < 5 <5

38 < 14 MS-3 04/23/13 < 34 < 30 <3 <4 <9 <3 <6 <4 <7 <3 <3

27 <8 MS-3 07/23/13 < 38 < 83 <5 <5 <9 <5 <9 <5 <7 <4 <4

30 < 11 MS-3 07/23/13 < 38 < 37 <4 <4 <8 <4 <8 <4 <8 <4 <4

27 <9 0o MS-3 10/22/13 < 15 < 28 <1 <2 <4 <1 < 3 <2 <3 <1 <2

14 <5 MS-4 04/23/13 < 38 < 26 < 4 <4 <9 <4 <8 <4 <8 <4 <4 < 33 <9 MS-5 01/22/13 < 32 < 60 <3 <3 <8 <3 <7 <4 <6 <3 <3

27 <7 MS-5 04/23/13 < 35 < 33 <4 <4 <8 <3 <7 <3 <6 <3 <4

25 <8 MS-5 04/23/13 < 30 < 32 <3 <:4 <9 <4 <7 <4 <6 <3 <3

25 <9 MS-5 07/23/13 < 42 < 81 < 4 <4 <8 < 4 <7 <5 <8 <4 <4

29 <8 MS-5 10/22/13 < 19 < 32 <2 <2 <4 <1 <3 <2 <3 <2 <2

17 <4 MS-7 04/25/13 < 40 < 43 <4 <4 <10 <4 <9 <5 <8 <4 <4

27 <8 MS-8 01121113 < 29 < 28 < 3 <3 <7 <3 <6 <3 <6 <3 <3

25 <7 MS-8 04/23/13 < 31 < 33 <3 <3 <8 <3 <7 <4 <6 <3 <4

23 <8 MS-8 07/23/13 < 38 < 45 <4 <4 <8 <4 <7 <5 <7 <3 <4 < 26 < 10 MS-8 10/22/13 < 21 < 40 <2 <2 <5 <2 <4 <2 <4 <2 <2

19 <7 MW-i 04/25/13 < 47 < 104 <6 <6 <14 <6 <11 <6 <11 <5 <6

30 < 14 MW-2 04/25/13 < 39 < 90 <4 <4 <10 <5 <10 <4 <7 <4 <4

27 < 8 MW-2 04/25/13 < 42 < 90 <4 <5 <10 <5 <11 <6 < 10 <5 <6

31 < 11 MW-TMI-101 04/24/13 < 33 < 52 <3 <4 <6 <4 <6 <3 <6 <3 <4 < 24 <8 MW-TMI-10S 04/24/13 < 43 < 48 <4 <5 < 10 <5 <8 <5 <10 <2 <5

27 <12 MW-TMI-12S 04/23/13 < 18 < 32 <2 <2 <4 <2 <4 <2 <4 <2 <2 <15 <5 MW-TMI-13S 04/24/13 < 33 < 61 <3 <4 <8 <4 <7 <3 <7 <3 <3

24 <8 MW-TMI-14S 04/24/13 < 40 < 38 <4 <5 <8 <4 <8 <5 <8 <4 <4

30 <8 MW-TMI-171 04/22/13 < 43 < 42 <4 < 5 <10 <4 <9 <5 <9 <4 <4

29 < 12 MW-TMI-18D 04/24/13 < 40 < 78 <4 <4 <10 <4 <8 <5 <8 <4 <5

31 <9 MW-TMI-191 04/24/13 < 44 < 87 <4 < 4 <10 < 6 <10 <4 <8 <4 <4

29 <9 MW-TMI-1D 04/24/13 < 34 < 32 <4 <4 <8 <4 <8 < 4 <7 <4 <4 < 26 <8

TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 DATE MW-TMI-20D 10/21/13 < 20 < 39 < 2 < 2 < 5 < 2 < 5 < 2 < 4 < 2 < 2 < 19 < 7 MW-TMI-201 10/21/13 < 15 < 26 < 1 < 2 < 4 < 2 < 3 < 2 < 3 < 1 < 2 < 14 < 5 MW-TMI-21D 10/21/13 < 16 < 15 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 2 < 2 < 13 < 4 MW-TMI-211 10/21/13 < 26 91 +/-42 < 3 < 3 < 6 < 2 <6 < 3 < 5 < 3 < 3 < 22 < 7 MW-TMI-211 10/21/13 < 19 < 17 <2 < 2 < 4 < 2 < 3 < 2 < 3 < 2 < 2 < 15 < 5 MW-TMI-21S 10/21/13 < 15 < 15 <2 < 2 < 4 < 2 < 3 < 2 < 3 < 2 < 2 < 13 < 4 MW-TMI-22D 10/21/13 < 19 < 17 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 2 < 2 < 15 < 5 MW-TMI-221 10/21/13 < 18 < 35 < 2 < 2 < 4 < 2 < 4 <2 < 4 < 2 < 2 < 15 < 5 MW-TMI-22S 10/21/13 < 18 < 41 < 2 <2 < 4 < 2 < 4 < 2 < 4 < 2 < 2 < 15 < 5 MW-TMI-2D 04/24/13 < 34 < 85 < 4 < 4 < 9 < 4 < 9 < 4 < 8 < 3 < 4 < 26 < 10 MW-TMI-31 04/25/13 < 40 < 85 < 4 < 5 < 11 < 5 < 10 < 5 < 9 < 4 < 5 < 26 < 11 MW-TMI-41 04/24/13 < 42 < 90 < 5 < 4 < 10 < 5 < 9 < 5 < 10 < 4 < 6 < 31 < 11 MW-TMI-4S 04/24/13 < 48 < 43 < 5 < 5 < 10 < 5 < 9 < 6 < 10 < 5 < 5 < 34 < 8 MW-TMI-6D 04/25/13 < 49 < 62 < 6 < 5 < 13 < 5 < 11 < 7 < 10 < 6 < 6 < 33 < 11 MW-TMI-6D 04/25/13 < 47 < 84 < 5 < 5 < 10 < 4 < 9 < 5 < 9 < 5 < 5 < 35 < 10 MW-TMI-61 04/25/13 < 38 < 37 < 4 < 4 < 9 < 4 < 8 < 5 < 7 < 4 < 4 < 23 < 10 MW-TMI-7S 04/25/13 < 46 < 32 < 5 < 5 < 12 < 5 < 10 <6 < 9 < 5 < 6 < 34 < 8 MW-TMI-7S 04/25/13 < 39 < 31 < 4 < 3 < 8 < 3 < 8 < 4 < 8 < 4 < 3 < 25 < 8 MW-TMI-8S 04/25/13 <48 82 48 < 5 < 5 < 9 < 5 < 10 < 5 < 9 < 5 < 5 < 31 < 8 MW-TMI-91 04/25/13 < 40 < 74 < 4 < 4 < 9 < 4 < 8 < 5 < 8 < 4 < 4 < 28 < 9 N2-1 01/28/13 < 44 < 36 < 5 < 4 < 10 < 5 < 9 < 5 < 9 < 4 < 5 < 30 < 9 NW-A 05/12/13 < 34 < 41 < 4 < 5 < 9 < 5 < 10 < 5 < 8 < 3 < 4 < 23 < 9 NW-B 05/12/13 < 34 < 67 < 4 <4 < 7 < 3 < 7 <4 < 6 <4 < 3 < 22 < 6 NW-C 05112/13 < 53 < 38 < 6 < 6 < 11 < 6 < 10 < 6 < 9 < 6 < 6 < 34 < 9 NW-CW 05/12/13 < 41 < 38 < 3 < 4 < 8 < 4 < 8 < 4 < 8 < 4 < 4 < 24 < 7 OS-14 01/22/13 < 36 < 33 <4 < 4 < 8 < 4 < 8 < 4 < 7 < 4 < 4 < 30 < 11 OS-14 04/23/13 < 46 < 87 < 4 < 5 < 11 < 3 < 9 <6 < 8 < 4 < 5 < 35 < 10 OS-14 07/23/13 < 29 < 34 < 3 < 3 < 7 < 3 < 6 < 3 < 5 < 3 < 3 < 20 < 7 OS-14 10/22/13 < 16 < 31 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 2 < 2 < 16 < 5 OS-16 01/22/13 < 31 < 28 < 4 < 3 < 8 < 3 < 7 < 4 < 6 < 3 < 4 < 28 < 9 OS-16 04/23/13 < 33 < 25 < 3 < 4 < 7 < 3 < 8 < 4 < 7 < 3 < 4 < 26 < 9 OS-16 07/23/13 < 49 < 97 <5 < 5 < 13 < 5 < 10 < 5 < 10 <4 < 5 < 32 < 12 OS-16 10/22/13 < 16 < 14 < 2 < 2 < 4 < 2 < 3 < 2 < 3 < 1 < 2 < 15 < 5 OS-18 04/25/13 < 51 < 46 < 5 < 5 < 13 < 5 < 9 < 6 < 9 < 5 < 6 < 31 < 13 OSF 04/25/13 < 46 < 83 < 5 < 5 < 12 < 6 < 10 < 6 < 9 < 5 < 6 < 32 < 12

TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 DATE RW-1 04/23/13 < 25 < 26 <2 <3 <6 <3 <5 <3 <5 <2 <3 < 18 <6 RW-2 04/23/13 < 24 < 39 <2 <3 <5 <3 <5 <3 <4 <2 <3 < 21 <6 RW-2 04/23113 < 23

22 <2 <3 <5 <2 <4 <3 <5 <2 <2 < 17 <6 TRAINING CENTER 04/25/13 < 48 < 49 <6 <5 < 11 <6 <9 <5 <8 <5 <5

31 < 10 i

TABLE B-I.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 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-TMI-101 04/24/13 < 0.14 < 0.10 < 0.07 < 0.02 < 0.09 0.9 +/- 0.3 < 0.06 0.6 +/- 0.2 < 165 < 3.4 MW-TMI-10S 04/24/13 < 0.08 < 0.09 < 0.04 < 0.02

0.04 0.3 +/- 0.1 < 0.03 < 0.1 < 70 < 3.8 MW-TMI-20D 10/21/13 Original < 0.16 < 0.05 < 0.10 < 0.12 < 0.11 0.9 +/- 0.3 < 0.05 0.4 +/- 0.2 < 86 < 4.5 MW-TMI-20D 10/21/13 Re analysis 1.2 +/- 0.3 0.7 +/- 0.2 MW-TMI-201 10/21/13 Original < 0.14 < 0.11 < 0.12 < 0.17 < 0.1 4.9 +/- 1.0 < 0.03 3.4 +/- 0.7 < 152 < 4.5 MW-TMI-201 10/21/13 Re analysis 4.2 +/- 0.6 2.8 +/- 0.5 u.J

TABLE B-11.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 U

SW-E-1 01/24/13 < 192 SW-E-1 04/25/13 < 176 SW-E-1 07/25/13

184 SW-E-1 10/24/13 < 181 SW-E-1 10/24/13 < 176 SW-E-2 01/24/13

194 SW-E-2 04/25/13 < 198 SW-E-2 04/25/13 < 181 SW-E-2 07/25/13 < 184 SW-E-2 10/24/13 < 180 SW-E-3 01/24/13 < 188 SW-E-3 04/25/13 < 178 SW-E-3 07125113 < 184 SW-E-3 10/24/13 < 177 B-14

TABLE B-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 DATE SVV-t-- U4/2l5/13

36 <32 <4 <3 <10 <3 <86 <4 <8 <3 <4 <24 <6 SW-E-2 04/25/13 < 36 <44 <4 <4 <8 <4 <8 <4 <8 <4 <4 <27 <9 SW-E-2 04/25/13 < 40 <90 <4 <4 <10 <5 < 8 <6 <8 <5 <5 <30 <9 SW-E-3 04/25/13 < 53 <43 <5 <6 <12 <4 < 10 <6 < 9 <5 <5 <33 <9 LAh

TABLE B-111.1 CONCENTRATIONS OF TRITIUM IN STORM WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 EDCB 01131113

181 EDCB 04/30/13 < 191 EDCB 07/02/13 < 471 EDCB 07/30/13 < 188 EDCB 10/29/13 Original 233 +/- 121 EDCB 10/29/13 Recount 289 +/- 116 EDCB 10/29/13 Reanalysis 217 +/- 131 B-16

TABLE B-111.2 CONCENTRATIONS OF GAMMA EMITTERS IN STORM WATER SAMPLES COLLECTED IN THE VICINITY OF THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 DATE EDCB 01/31/13 < 16 < 32 <2 <2 < 4 <2 < 4 <2 < 3 <2 <2 <13 < 4 EDCB 04/30/13 < 44 < 48 <4 <5 < 10 <6

9 <6 < 7 <4 <4 <18 < 6 EDCB 07/30/13 < 42 < 38 <5 <5 <11 <5 < 10 < 5 < 8 < 4 < 4 < 23 < 9 EDCB 10/29/13 < 37 < 70 <3 <4 < 9 <3 <7 <4 < 7 <4 <4 <31 < 8

TABLE B-IV.1 CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 PR-MS-22 01/07/13 530 +/- 133 PR-MS-22 01/14/13 498 +/- 136 PR-MS-22 02/19/13 441 +/- 130 PR-MS-22 02/25/13 525 +/- 156 TM-PR-ESE 02/26/13 < 172 TM-PR-ESE 05/01/13 < 172 TM-PR-ESE 07/15/13 < 166 TM-PR-ESE 10/08/13 < 198 TM-PR-MS-1 02/26/13 < 171 TM-PR-MS-1 05/01/13 < 175 TM-PR-MS-1 07/15/13 < 166 TM-PR-MS-1 10/08/13 < 169 TM-PR-MS-2 02/26/13 218 + 116 TM-PR-MS-2 05/01113

170 TM-PR-MS-2 07/15/13

167 TM-PR-MS-2 10/08/13 < 200 TM-PR-MS-4 02/26/13

168 TM-PR-MS-4 05/01/13 < 173 TM-PR-MS-4 07/15/13 < 168 TM-PR-MS-4 10/08/13 < 199 B-18

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY

Intentionally left blank

TABLE C-I.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER SPLIT SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A Gr-B MS-2 01/22/13 503 +/- 93 MW-TMI-101 01/22/13 896 +/- 108 MW-TMI-14S 01/23/13 < 140 MW-TMI-16D 01/24/13 495 +/- 93 MW-2 04/25/13 < 193 MW-TMI-7S 04/25/13 < 193 MS-5 04/23/13 < 193 < 0.8 < 0.6 < 0.9 3.3 +/- 1.2 RW-2 04/23/13 < 193 < 0.7 < 0.5 < 0.9 6.7 +/- 1.1 MW-TMI-6D 04/25/13 < 193 < 0.8 < 0.7 2.4 +/- 1.0 3.3+/- 1.2 MW-TMI-22S 07/22/13 7822 +/- 270 MS-3 07/23/13 425 +/- 107 NW-C 07/23/13 1328 +/- 139 MS-7 07/24/13 < 179 MW-TMI-2D 07/24/13 442 +/- 108 MW-TMI-21 I 10/21/13 6499 +/- 241 < 0.8 < 0.5 < 1.3 2.3 + 0.8 MS-20 10/22/13 746 +/- 111 MW-TMI-131 10/22/13 389 +/- 97 MW-TMI-10D 10/23/13 453 +/- 99 C-I

TABLE C-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SPLIT SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD MS-3 07/23/13 < 28

59 <3 <7 <3 <2 <4 <6 <2 <2 <2 <19 <4 MS-5 04/23/13 < 23 57 1 31 <2 <6 <3 <1 <2 <4 <2 <2 <3 < 12 <3 MW-2 04/25/13 < 29 < 73 < 2 < 6 < 3 <3 <5 <7 <5 <4

<3 < 21 <5 MW-TMI-21 I 10/21/13 < 13 < 21 <1 <1 <1 <1 <2 <2 <1 <1 <1 <8 <3 MW-TMI-6D 04/25/13 < 36 < 57 <2 <4 <2 <3 <4 <5 <3 <3 <2 < 17 <3 MW-TMI-7S 04/25/13 < 26 < 61 <3 <9 <2 <3 <6 <5 <3 <2 <3 < 10 <3 RW-2 04/23/13 < 24 < 63 <2 <7 <3 <2 <6 <4 <3 <4 <2 < 18 <3

TABLE C-1.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Am-241 Cm-242 Cm-2431244 Pu-238 Pu-239/240 U-233/234 U-235 U-238 Fe-55 Ni-63 PERIOD NONE FOR 2013

TABLE C-I1.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SPLIT SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 SW-E-1 10/24/13 < 149 SW-E-2 04/25/13 < 193 C-4

TABLE C-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SPLIT SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA SITE COLLECTION Be-7 K-40 Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 PERIOD SW-E-2 04/25/13 < 30 < 53 <2 <5 <3 <2 <5 <5 <2 <3 <4 <13 <2 LJi

TABLE C-I11.1 CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SPLIT SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, THREE MILE ISLAND NUCLEAR STATION, 2013 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 TM-PR-MS-2Q 03/15/13 244 +/- 88 TM-PR-MS-2Q 05/20/13

139 TM-PR-MS-2Q 08/12/13

152 TM-PR-MS-2Q 10/16/13 173 +/- 101 C-6

TMI-14-051, 2013 Radiological Environmental Monitoring Program Report

Contents

Text

SUBJECT:

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

Navigation menu

TMI-14-051, 2013 Radiological Environmental Monitoring Program Report

Text

SUBJECT:

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

Navigation menu

Search