Text

Annual Radiological Environmental Operating Report for 2017
	ML18110A420
Person / Time
Site:	Susquehanna
Issue date:	04/20/2018
From:	Berryman B; Susquehanna, Talen Energy
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	PLA-7699
	Download: ML18110A420 (122)
	v • d • e

APR 2 0 2018 Brad Berryman Site Vice President U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001 Susquehanna Nuclear, LLC 769 Salem Boulevard Berwick, PA 18603 Tel. 570.542.2904 Fax 570.542.1504 Brad.berryman@talenenergy.com SUSQUEHANNA STEAM ELECTRIC STATION ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT PLA-7699 TALEN~

ENERGY 10 CFR 50.4 Docket No. 50-387 50-388 In accordance with the Susquehanna Steam Electric Station Units 1 and 2 Technical Specification 5.6.2, the Susquehanna Steam Electric Station Annual Radiological Environmental Operating Report is hereby submitted for the calendar year 2017.

Should you have any questions regarding this submittal, please contact Mr. Jason Jennings at (570)-542-3155.

This letter contains no new regulatory commitments.

Sincerely, B. Berryman

Attachment:

Susquehanna Steam Electric Station Annual Radiological Environmental Operating Report Copy:

Ms. T. E. Hood, NRC Project Manager Ms. L. Micewski, NRC Sr. Resident Inspector Mr. M. Shields, PA DEP/BRP Mr. J. Furia, NRC Region 1 Health Physicist

Attachment to PLA-7699 Susquehanna Steam Electric Station Annual Radiological Environmental Operating Report

SUSQUEHANNA STEAM ELECTRIC STATION UNITS 1 and2 Prepared by:

Annual Radiological Environmental Operating Report 2017

~~;r--

F.J. Hickey, Sr. I?Iealth Physicist Reviewed by:

K.M. Ervin, Sr. Environmental Scientist Approved by:

risewood, Manager - Plant Chemistry/Environmental Susquehanna Nuclear, LLC 7 69 Salem Boulevard Berwick, Pennsylvania 18603

SUSQUEHANNA STEAM ELECTRIC STATION Units 1 & 2 2017 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT JANUARY 1 TO DECEMBER 31, 2017 Susquehanna Nuclear, LLC Berwick, PA April, 2018

TABLE OF CONTENTS I. Summary.......................................................................................................................... 1 II. The Radiological Environmental Monitoring Program..................................................... 5 A. Objectives of the Operational REMP................................................................... 6 B. Implementation of the Objectives........................................................................ 6 III. Program Description...................................................................................................... 8 A. Data Interpretation............................................................................................... 8 B. Program Exceptions............................................................................................ 9 C. Program Changes............................................................................................... 9 D. Quality Assurance Program.............................................................................. 19 E. Summary of Results - Inter-Laboratory Comparison Program......................... 19 IV. Results and Discussion............................................................................................... 23 A. Atmospheric....................................................................................................... 24

1. Air Particulates........................................................................................ 24

2. Air Iodine................................................................................................. 25 B. Direct Radiation................................................................................................. 25 C. Terrestrial.......................................................................................................... 26

1. Milk.......................................................................................................... 26

2. Groundwater........................................................................................... 27

3. Drinking Water........................................................................................ 29

4. Food Products......................................................................................... 30

5. Soil.......................................................................................................... 31 D. Aquatic.............................................................................................................. 33

1. Surface Water......................................................................................... 33

2. Fish......................................................................................................... 34

3. Shoreline Sediment................................................................................. 35 E. Land Use Census.............................................................................................. 37 V. Annotations to Previous AREOR.................................................................................. 38 VI. Conclusions................................................................................................................. 38 VII. References................................................................................................................. 39

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TABLE OF CONTENTS (contd)

Appendix A - Program Summary..................................................................................... A-1 Appendix B - Sample Designation and Locations............................................................ B-1 Appendix C - Data Tables............................................................................................... C-1 Appendix D - Summary of Results from Analytics, Environmental Resource Associates (ERA) and Department of Energy (DOE) - Mixed Analyte Performance Evaluation Program (MAPEP) and Susquehanna REMP Laboratory Quality Control Spike Program............ D-1 Appendix E - REMP Sample Equipment Operability Trending....................................... E-1

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LIST OF TABLES Exceptions Table................................................................................................................ 10 Appendix A Tables Table A Summary of Data for SSES........................................................................ A-2 Appendix B Tables Table B-1 Sampling Locations.................................................................................... B-3 Table B-2 Susquehanna Steam Electric Station Radiological Environmental Monitoring Program.................................................................................... B-8 Appendix C Tables Table C-1 Gross Beta Analyses of Air Particulate Filters Susquehanna Steam Electric Station......................................................................................... C-2 Table C-2 Gamma Spectroscopic Analyses of Composited Air Particulate Filters Susquehanna Steam Electric Station....................................................... C-4 Table C-3 Iodine-131 Analyses of Air Iodine Samples Susquehanna Steam Electric Station......................................................................................... C-5 Table C-4 Environmental Optically Stimulated Luminescence Dosimetry Results Susquehanna Steam Electric Station....................................................... C-7 Table C-5 Iodine-131 and Gamma Spectroscopic Analyses of Milk Susquehanna Steam Electric Station.............................................................................. C-10 Table C-6 Tritium and Gamma Spectroscopic Analyses of Groundwater Susquehanna Steam Electric Station....................................................... C-12

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LIST OF TABLES (contd)

Table C-7 Annual Average Tritium Concentration in Precipitation, Monitoring Wells and Lake Took-a-While (LTAW) Surface Water Data Susquehanna Steam Electric Station....................................................... C-15 Table C-8 Gross Beta, Tritium and Gamma Spectroscopic Analyses of Drinking Water Susquehanna Steam Electric Station............................................ C-16 Table C-9 Gamma Spectroscopic Analyses of Food Products (Fruits and Vegetables) Susquehanna Steam Electric Station................................... C-17 Table C-10 Gamma Spectroscopic Analyses of Soil Susquehanna Steam Electric Station...................................................................................................... C-19 Table C-11 Tritium and Gamma Spectroscopic Analyses of Surface Water Susquehanna Steam Electric Station....................................................... C-20 Table C-12 Gamma Spectroscopic Analyses of Fish Susquehanna Steam Electric Station...................................................................................................... C-22 Table C-13 Gamma Spectroscopic Analyses of Shoreline Sediment Susquehanna Steam Electric Station.............................................................................. C-23 Appendix D Tables Table D-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services............................................ D-2 Table D-2 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services............................................ D-5 Table D-3 DOEs Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering Environmental Services............................. D-6

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LIST OF TABLES (contd)

Table D-4 Susquehanna REMP Laboratory Quality Control Spike Program Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services............................................ D-7 Appendix E Table Table E-1 REMP Sample Equipment Operability Trending Susquehanna Steam Electric Station......................................................................................... E-2 LIST OF MAPS Map B-1 Direct Radiation Monitoring Locations Within One Mile.............................. B-10 Map B-2 Direct Radiation Monitoring Locations From One to Five Miles.................. B-11 Map B-3 Direct Radiation Monitoring Locations Greater than Five Miles.................. B-12 Map B-4 Environmental Sampling Locations Within One Mile.................................. B-13 Map B-5 Environmental Sampling Locations From One to Five Miles...................... B-14 Map B-6 Environmental Sampling Locations Greater than Five Miles...................... B-15 LIST OF FIGURES Figure C-1 Gross Beta Activity in Air Particulates......................................................... C-24 Figure C-2 Ambient Radiation Levels Based on Environmental Dosimetry Data............................................................................................................ C-25

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LIST OF FIGURES (contd)

Figure C-3 Iodine-131 Activity in Milk........................................................................... C-26 Figure C-4 Annual Average Tritium Activity in Precipitation and Surface Water Versus Ground Water...................................................................... C-27 Figure C-5 Gross Beta Activity in Drinking Water......................................................... C-28 Figure C-6 Tritium Activity in Surface Water................................................................. C-29

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I.

Summary During normal operations of a nuclear power generating station there are permitted releases of small amounts of radioactive material to the environment. To monitor and determine the effects of these releases a Radiological Environmental Monitoring Program (REMP) has been established around the Susquehanna Steam Electric Station (SSES). The results of the REMP are published annually, providing a summary and interpretation of the data collected.

Ecology III was responsible for the collection of environmental samples during 2017. Teledyne Brown Engineering (TBE) was responsible for the analysis of environmental samples during 2017. The results are discussed in this report. Landauer provided the dosimetry services for SSES during 2017.

This Annual Radiological Environmental Operating Report (AREOR) conducted for SSES covers the period January 1, 2017 through December 31, 2017. During that time period, 1574 analyses were performed on 1339 samples.

Of the two man-made radionuclides (tritium [H-3] and cesium-137 [Cs-137])

detected in the environment by the Susquehanna Steam Electric Station (SSES) Radiological Environmental Monitoring Program (REMP), tritium is the only radionuclide attributable to SSES operation.

The whole body and organ dose to members of the public attributable to tritium identified in REMP cooling tower blowdown samples was 1.87E-04 mRem. Tritium was included in the dose calculation because it was identified in the REMP samples of permitted water being discharged to the Susquehanna River. Cs-137 is attributed to fallout from atmospheric nuclear weapons testing. The 2017 average concentration of tritium in the cooling tower blowdown water and the 2017 average cooling tower blowdown flow were used to determine the amount of tritium released. The presumed exposure pathways to the public from this radionuclide were drinking water taken from the Susquehanna River at Danville, PA and eating fish caught near the SSES discharge to the river.

Dose from ground plane deposition (shoreline exposure) is not applicable because tritium does not emit gamma radiation and the beta radiation emitted by tritium is not sufficiently penetrating to reach an individual on the shore.

Based on the above outlined methodology, the total tritium activity released from the SSES to the Susquehanna River in 2017 was 17.0 curies.

The 2017 average dilution factor for the Susquehanna River was 613, based on the annual average river flow of 7.91E+06 gpm and the annual average cooling tower blowdown flow of 1.29E+04 gpm.

The REMP Sample Equipment Operability and year-to-year trend comparison is located in Appendix E, Table E-1.

The REMP was conducted in accordance with the SSES Technical Requirements Manual (TRM) and the respective station Offsite Dose Calculation Manual (ODCM) which are based on the design objectives in 10CFR Part 50, Appendix I, Sections IV.B.2, IV.B.3 and IV.C. The Lower Limit of Detection (LLD) values required by the TRM and SSES ODCM were achieved for the 2017 reporting period. The REMP objectives were also met during this period. The concentration of radioactive material in the environment that could be attributable to SSES operations was only a small fraction of the concentration of naturally occurring and man-made radioactivity. Since these results were comparable to the results obtained during the preoperational phase of the program and combined with historical results collected since commercial operation, it can be concluded that the levels and fluctuations were as expected and that the operation of the SSES had no significant radiological impact on the environment. Additionally, the REMP sample results for 2017 verify the adequacy of the SSES radioactive effluent control systems.

Samples of air particulates, air iodine, milk, groundwater, drinking water, vegetation, soil, surface water, fish and sediment were collected and analyzed. External radiation dose measurements were also made in the vicinity of SSES using passive dosimeters.

Air particulate samples were analyzed for concentrations of gross beta weekly and gamma emitting nuclides quarterly. Gross beta and cosmogenically produced beryllium-7 (Be-7) were detected at levels consistent with those detected in previous years. No fission or activation products were detected.

High sensitivity iodine-131 (I-131) analyses were performed on weekly air samples. All results were less than the minimum detectable concentration.

Environmental gamma radiation measurements were performed quarterly using optically stimulated luminescent dosimeters (OSLD). The levels of radiation detected were consistent with those observed in previous years.

Cow milk samples were analyzed for concentrations of I-131 and gamma emitting nuclides. All I-131 results were below the minimum detectable concentration. Naturally occurring potassium-40 (K-40) was detected at levels consistent with those detected in previous years. No fission or activation products were detected.

Groundwater samples were analyzed for concentrations of tritium and gamma emitting nuclides. Tritium activities detected were consistent with those detected in previous years. No fission or activation products were detected.

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

Food product (fruits, vegetables and broadleaf vegetation) samples were analyzed for concentrations of gamma emitting nuclides. Naturally occurring Be-7 and K-40 were detected at levels consistent with those detected in previous years. No fission or activation products were detected.

Soil samples were analyzed for concentrations of gamma emitting nuclides.

Naturally occurring isotopes (i.e. K-40, thorium-228 [Th-228], radium-226

[Ra-226] and actinium-228 [Ac-228]), were detected at levels consistent with previous years. Cs-137 was detected at levels consistent with those detected in previous years. Historical and preoperational data consistently indicates that Cs-137 previously detected in the soil is due to residual fallout from atmospheric nuclear weapons testing in the 1970s and early 1980s, and the Chernobyl and Fukushima events, and is not attributable to station operations.

Surface water samples were analyzed for concentrations of tritium and gamma emitting nuclides. Tritium activities detected were consistent with those detected in previous years. Naturally occurring Th-228 was detected in one sample at levels that is consistent with results in previous years. No fission or activation products were detected.

Fish and shoreline sediment samples were analyzed for concentrations of gamma emitting nuclides. Naturally occurring K-40 was detected at levels consistent with those detected in previous years. No fission or activation products were detected in fish or sediment samples.

II.

The Radiological Environmental Monitoring Program The Susquehanna Steam Electric Station (SSES) is a nuclear electrical generating facility with two boiling-water reactors and generators located just west of the Susquehanna River, approximately 5 miles northeast of Berwick, in Luzerne County, Pennsylvania. The station was constructed in the 1970s, with Unit 1 beginning commercial operation on June 8, 1983, and Unit 2 beginning commercial operation on February 12, 1985. Units 1 and 2 each generate a net 1,350 megawatts (MWe), for a total station output of 2,700 MWe.

In total Susquehanna Nuclear, LLC presently owns 2,347 acres of land on both sides of the Susquehanna River. Generally, this land is characterized by open deciduous woodlands interspersed with grasslands.

On the west side of the river, 1,605 (1,670 minus 65 acre Gould Island) acres of land is jointly owned between Susquehanna Nuclear, LLC (90%) and Allegheny Electric Cooperative (10%). The land use on the west side of the river includes generation and associated maintenance facilities, laydown areas, parking lots, roads, a nature preserve (the Susquehanna Riverlands),

and agricultural leases to local farmers.

To the north of the station along the river, Susquehanna Nuclear, LLC owns 100% of the 65-acre Gould Island. On the east side of the river, and across the river from the station, Susquehanna Nuclear, LLC is the 100% owner of 677 acres that are maintained as undeveloped land, natural recreational areas, wildlife areas, and leases to local farmers.

More specific information on the demography, hydrology, meteorology, and land use characteristics of the area in the vicinity of the SSES can be found in the Environmental Report [Reference 1], the Final Safety Analysis Report

[Reference 2] and the Final Environmental Statement [Reference 3] for the SSES.

Radioanalytical data from samples collected under the REMP were compared with results from the preoperational phase and historical results during operations. Differences between these periods were examined statistically to determine the effects of station operations. This report presents the results from January 1 through December 31, 2017, for the SSES Radiological Environmental Monitoring Program (REMP).

A.

Objectives of the Operational REMP The objectives of the Operational REMP are to:

1.

Document compliance with SSES REMP Technical Requirements and radiological environmental surveillances.

2.

Verify proper implementation of SSES radiological effluent controls.

3.

Identify, measure and evaluate trends of radionuclide concentrations in environmental pathways near SSES.

4.

Assess impact of SSES Effluents on the Environment and the public.

5.

Verify that SSES operations have no detrimental effects on the health and safety of the public or on the environment.

B.

Implementation of the Objectives 1.

In order to meet the objectives, an operational REMP was developed. Samples of various media were selected for monitoring due to the radiological dose impact to humans and other organisms. The selection of samples was based on:

(a)

Established critical pathways for the transfer of radionuclides through the environment to man, and (b)

Experience gained during the preoperational phase.

Sampling locations were determined based on site meteorology, Susquehanna River hydrology, local demography, and land uses.

2.

Sampling locations were divided into two classes, indicator and control. Indicator locations were sited where it is expected that radiation and radioactive material that might originate from the station would be detectable. Control locations were selected in areas where they would be unaffected by station operations (i.e. Susquehanna River upstream from the station, >10 miles from the station in least prevalent wind directions). Fluctuations in the levels of radionuclides and direct radiation at indicator locations were evaluated with respect to analogous fluctuations at control locations. Indicator and control location data were also evaluated relative to preoperational data.

3.

Appendix A, Program Summary, describes and summarizes the analytical results in accordance with the SSES Technical Specifications.

4.

Appendix B, Sample Designation and Locations, describes the coding system which identifies sample type and location. Table B-1 lists the location codes, locations, latitude, longitude, and the types of samples collected at each location. Table B-2 contains sample medium, analysis and sampling details.

5.

The sampling locations are indicated on the following maps:

Map B-1, Direct Radiation Monitoring Locations Within One Mile Map B-2, Direct Radiation Monitoring Locations From One to Five Miles Map B-3, Direct Radiation Monitoring Locations Greater Than Five Miles Map B-4, Environmental Sampling Locations Within One Mile Map B-5, Environmental Sampling Locations From One to Five Miles Map B-6, Environmental Sampling Locations Greater Than Five Miles III.

Program Description A.

Data Interpretation Results of analyses are grouped according to sample type and presented in Appendix C, Data Tables. All results above the Lower Limit of Detection (LLD) are at a confidence level of +/- 2 sigma. This represents the range of values into which 95% of repeated analyses of the same sample should fall. As defined in U.S. Nuclear Regulatory Commission Regulatory Guide 4.8, LLD is the smallest concentration of radioactive material in a sample that will yield a net count (above system background) that will be detected with 95% probability, with only 5% probability of falsely concluding that a blank observation represents a "real signal." LLD is normally calculated as 4.66 times the standard deviation of the background counting rate, or of the blank sample count, as appropriate, divided by counting efficiency, sample size, 2.22 (dpm per picocurie), the radiochemical yield when applicable, the radioactive decay constant and the elapsed time between sample collection and time of counting. LLD represents the capability of the measurement system.

The Minimum Detectable Concentration (MDC) is defined as the smallest concentration of radioactive material that can be detected at a given confidence level. The MDC differs from the LLD in that the MDC takes into consideration the interference caused by the presence of other nuclides while the LLD does not. MDC is an indicator of the performance of the measurement system. The MDC is set to be below the LLD.

The grouped data were averaged and standard deviations calculated.

Thus, the +/- 2 sigma of the averaged data represent sample and not analytical variability. For reporting and calculation of averages, any result occurring at or below the LLD is considered to be at the LLD level.

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Program Exceptions 6HH([FHSWLRQV7DEOH5(03$W\\SLFDO6DPSOLQJ2FFXUUHQFHV

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Program Changes There were no program changes in 2017.

([FHSWLRQV7DEOH 2017 REMP Atypical Sampling Occurrences Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action JAN Air 12S1 01/04/17 to 01/11/17 (loss of 0.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months )

Power outage on 01/11/17.

Loss of 0.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months as determined by timer box during weekly collection.

Non-continuous sampler operation.

CA #17-01 AR 2017-00930 01/11/17: No action required. Air monitor resumed normal operation when power was restored.

01/11/17: Operability verified @ 1115 hours0.0129 days 0.31 hours 0.00184 weeks 4.242575e-4 months .

Ideal sample collected for sample period:

23,100 cf.

Surface Water 6S6 01/10/17 to 01/17/17 (week 3 January composite)

Diminished sample flow (1.1 gpm) as discovered during weekly collection.

CA #17-03 CR 2017-01217 01/17/17: Adequate sample volume collected during sample period. Maintenance requested.

01/23/17: Maintenance performed by I&C and sample flow restored to 1.5 gpm.

01/24/17: Operability verified @ 1044 hours0.0121 days 0.29 hours 0.00173 weeks 3.97242e-4 months .

Ideal sample collected for sample periods.

FEB Air 12S1 02/22/17 to 03/02/17 (loss of 24.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months )

Loss of 12kV power from 02/25/17 @ 1513 to 02/26/17 @ 1523.

Loss of 24.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months as determined by timer box.

Non-continuous sampler operation.

CA #17-05 CR 2017-03995 &

CA #17-06 CR 2017-04010 02/27/17: No action required. Air monitor resumed normal operation when power was restored.

02/27/17: Operability verified @ 0845 hours0.00978 days 0.235 hours 0.0014 weeks 3.215225e-4 months .

Ideal sample collected for sample period:

21,300 cf.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action MAR Air 10S3 02/22/17 to 03/02/17 (loss of 0.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months )

Power outage on 03/02/17.

Loss of 0.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months as determined by timer box and known restoration time during weekly collection.

Non-continuous sampler operation.

CA #17-07 CR 2017-04380 03/02/17: No action required. Air monitor resumed normal operation when power was restored.

03/02/17: Operability verified @ 0950 hours0.011 days 0.264 hours 0.00157 weeks 3.61475e-4 months .

Ideal sample collected for sample period:

25,000 cf.

Surface Water 6S6 02/28/17 to 03/07/17 (week 1 March composite)

Diminished sample flow (0.6 gpm) as discovered during weekly collection.

CA #17-08 CR 2017-04898 03/07/17: Adequate sample volume collected during sample period. Maintenance requested.

03/09/17: Maintenance performed by I&C and sample flow restored to 1.5 gpm.

03/13/17: Operability verified @ 1203 hours0.0139 days 0.334 hours 0.00199 weeks 4.577415e-4 months .

Ideal sample collected for sample periods.

Air 10S3 03/08/17 to 03/16/17 (loss of 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months )

Power outage date and time unknown.

Loss of 0.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months as determined by timer box during weekly collection.

Non-continuous sampler operation.

CA #17-09 CR 2017-05816 03/16/17: No action required. Air monitor resumed normal operation when power was restored.

03/16/17: Operability verified @ 1205 hours0.0139 days 0.335 hours 0.00199 weeks 4.585025e-4 months .

Ideal sample collected for sample period:

26,300 cf.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action APR Air 12S1 03/29/17 to 04/05/17 (loss of 54.1 hours1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ) 12kV power removed from service for repairs, causing REMP air sampler to be out of service.

Outage began on 04/03/17 @ 0807 and ended on 04/05/17 @ 1415 Non-continuous sampler operation.

CA #17-10 AR 2017-07587 04/05/17: No action required. Air monitor resumed normal operation when power was restored.

04/06/17: Operability verified @ 0827 hours0.00957 days 0.23 hours 0.00137 weeks 3.146735e-4 months .

Ideal sample collected for sample period:

15,200 cf.

Surface Water 6S6 04/04/17 to 04/11/17 (week 2 April composite)

Diminished sample flow (1.0 gpm) as discovered during weekly collection.

CA #17-11 CR 2017-08273 04/11/17: Adequate sample volume collected during sample period.

04/12/17: PM performed by I&C. Restored sample flow to 1.5 gpm.

04/18/17: Operability verified @ 1117 hours0.0129 days 0.31 hours 0.00185 weeks 4.250185e-4 months .

Ideal sample collected for sample period.

Surface Water 6S6 04/11/17 to 04/18/17 (week 3 April composite)

ACS out of service for approximately 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months for routine maintenance by I&C.

CA #17-12 CR 2017-08319 04/12/17: CR generated by I&C. No corrective action required since this was routine maintenance. PM date will be noted on sample collection form.

04/18/17: Operability verified @ 1117 hours0.0129 days 0.31 hours 0.00185 weeks 4.250185e-4 months Ideal sample collected for sample period.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action APR (cont.)

Surface Water 6S6 04/18/17 to 04/25/17 (week 4 April composite)

Diminished sample flow (1.0 gpm) as discovered during weekly collection.

CA #17-13 CR 2017-08997 04/25/17: Adequate sample volume collected during sample period.

04/26/17: PM performed by I&C. Restored sample flow to 1.5 gpm.

05/02/17: Operability verified @ 1200 hours0.0139 days 0.333 hours 0.00198 weeks 4.566e-4 months .

Ideal sample collected for sample period.

Air 8G1 04/19/17 to 04/26/17 (loss of 1.9 hours1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months )

Power outage date and time unknown.

Loss of 1.9 hours1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months as determined by timer box during weekly collection.

Non-continuous sampler operation.

CA #17-14 CR 2017-09194 04/26/17: No action required. Air monitor resumed normal operation when power was restored.

04/26/17: Operability verified @ 1504 hours0.0174 days 0.418 hours 0.00249 weeks 5.72272e-4 months .

Ideal sample collected for sample period:

22,000 cf.

TRM requirements were met since second control location (6G1) was operational during sample period.

MAY Precip.

12S1 03/29/17 to 05/03/17 (week 5, 2nd Q composite)

Compromised 2nd quarter composite from week 1 to week 5 for 12S1. Week 5 of 10S3 precipitation was placed in 12S1s composite container.

CA #17-15 CR 2017-09719 05/04/17: A review of Focus on Five human performance tools was conducted with all sample collectors. All water composite and field collection containers will be color coded.

05/26/17: Painting of all precipitation buckets and containers completed.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action MAY (cont.)

Surface Water 6S6 05/02/17 to 05/09/17 (week 2 May composite)

Diminished sample flow (0.5 gpm) as discovered during weekly collection.

CA #17-16 CR 2017-09887 05/09/17: Adequate sample volume collected during sample period.

05/10/17: PM performed by I&C. Restored sample flow to 1.5 gpm.

05/16/17: Operability verified @ 1045 hours0.0121 days 0.29 hours 0.00173 weeks 3.976225e-4 months .

Ideal sample collected for sample period.

Surface Water 2S7 05/16/17 to 05/23/17 (week 4 May composite)

Insufficient sample volume (<1 gallon) collected for week 4 May composite. ACS was operational at time of sample collection.

CA #17-17 CR 2017-10666 05/23/17: Sample line was flushed of very turbid water and debris. Grab sample collected from flow line @ 1323 hours0.0153 days 0.368 hours 0.00219 weeks 5.034015e-4 months .

05/23/17: Equipment restored to service @

1000 hours0.0116 days 0.278 hours 0.00165 weeks 3.805e-4 months .

05/30/17: Operability verified @ 0854 hours0.00988 days 0.237 hours 0.00141 weeks 3.24947e-4 months .

Grab sample collected for sample period.

JUN Surface Water 2S7 06/05/17 to 06/09/17 & 06/13/17 (weeks 1 & 2 June composite)

CTBD secured daily from 06/05/17 to 06/09/17, and again on 06/13/17, for planned completion of Blowdown Line Sparger Inspection.

No effect on continuous sampler operation.

CA #17-18 CR 2017-11259 & 2017-11732 06/05/17: No corrective action required.

Sampler resumed normal operation when blowdown was restored daily.

06/13/17: Operability verified @ 1000 hours0.0116 days 0.278 hours 0.00165 weeks 3.805e-4 months .

Ideal sample collected for sample periods.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action JUN (cont.)

Surface Water 6S6 05/30/17 to 06/06/17 (week 1 June composite)

No sample flow to ACS as discovered during weekly collection, possibly due to a blocked sample line.

06/06/17 to 06/13/17 - Week 2 June composite Delayed start date of 06/07/17 @ 0845 hours0.00978 days 0.235 hours 0.0014 weeks 3.215225e-4 months .

CA #17-19 CR 2017-11378 06/06/17: Adequate sample volume collected during sample period. Grab sample collected at alternate location 5S9 to meet TRM requirements. Composite sample for week 1 June to be used in monthly composite.

Requested maintenance (WO# 2093363).

06/07/17: Sample flow restored @ 0845 hours0.00978 days 0.235 hours 0.0014 weeks 3.215225e-4 months . Operability verified @ 1227 hours0.0142 days 0.341 hours 0.00203 weeks 4.668735e-4 months .

Grab sample collected for sample period.

Surface Water 6S6 06/20/17 to 06/27/17 (week 4 June composite)

ACS out of service for approximately 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months for routine maintenance by I&C.

CA #17-20 CR 2017-12100 06/20/17: CR generated by I&C. No corrective action required since this was routine maintenance. PM date will be noted on sample collection form.

06/27/17: Operability verified @ 1110 hours0.0128 days 0.308 hours 0.00184 weeks 4.22355e-4 months Ideal sample collected for sample period.

JUL Surface Water 6S6 07/03/17 to 07/11/17 (week 2 July composite)

Diminished sample flow (0.5 gpm) as discovered during weekly collection.

CA #17-22 CR 2017-13090 07/11/17: Adequate sample volume collected during sample period.

07/12/17: PM performed by I&C. Restored sample flow to 1.5 gpm.

07/18/17: Operability verified @ 0954 hours0.011 days 0.265 hours 0.00158 weeks 3.62997e-4 months .

Ideal sample collected for sample period.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action JUL (cont.)

Air 3S2 & 9B1 07/12/17 to 07/19/17 (loss of 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months )

Power outages on 07/14/17 due to line failure on Route 11.

Loss of 5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months as determined by timer boxes during weekly collection.

Non-continuous sampler operation.

CA #17-23 CR 2017-13240 07/15/17: No action required. Air monitors resumed normal operation when power was restored.

07/19/17: Operability verified @ 0754 hours0.00873 days 0.209 hours 0.00125 weeks 2.86897e-4 months for 3S2 and @ 1405 hours0.0163 days 0.39 hours 0.00232 weeks 5.346025e-4 months for 9B1.

Ideal samples collected for sample period:

19,500 cf.- 3S2 20,100 cf.- 9B1 AUG DLR 9B1 3rd Quarter Environmental DLR was found damaged and laying on the ground. Damaged property occurred as a result of road ground clearing maintenance along Route 11.

CA #17-24 CR 2017-15599 & AR 2017-15619 09/05/17: New post and 2 spare 3rd Q DLRs were installed.

Adequate number of DLRs collected from other monitoring locations. CR & AR for tracking and trending of occurrence only, it is not counted as an atypical sample for the Environmental Labs REMP program.

SEP Surface Water 6S6 09/12/17 to 09/19/17 (week 3 Sep composite)

No sample flow to ACS as discovered by I&C during monthly preventative maintenance on 09/19/17 @ 0719, due to a blocked sample line.

CA #17-25 CR 2017-16464 09/19/17: Adequate sample volume collected during sample period. Grab sample collected at location 6S6 to meet TRM requirements.

Composite sample for week 3 Sep to be used in monthly composite.

09/19/17: Sample flow restored @ 1016 hours0.0118 days 0.282 hours 0.00168 weeks 3.86588e-4 months .

Operability verified @ 1100 hours0.0127 days 0.306 hours 0.00182 weeks 4.1855e-4 months .

Grab sample collected for sample period.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action SEP (cont.)

Air 8G1 09/13/17 to 09/20/17 (loss of 1.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months )

Power outage on 09/20/17 from 0945 to 1456, but was turned on for 54 minutes between 1119 and 1456 due to PPL performing maintenance on lights in vicinity of air monitor.

Loss of 1.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months as determined by timer box during weekly collection.

Delayed start for week of 09/20/17 to 09/27/17.

Non-continuous sampler operation.

CA #17-26 CR 2017-16594 09/20/17: No action required. Air monitor resumed normal operation when power was restored @ 1456 while sample collector was present.

09/20/17: Operability verified @ 1458 hours0.0169 days 0.405 hours 0.00241 weeks 5.54769e-4 months .

Ideal sample collected for sample periods:

21,200 cf (09/20/17) and 20,900 cf (09/27/17).

TRM requirements were met since second control location (6G1) was operational during sample period.

NOV Air 12S1 11/08/17 to 11/15/17 (momentary loss of 12kV power)

Momentary loss of power on 11/14/17.

No loss of sampling time as determined by timer box during weekly collection.

Non-continuous sampler operation.

CA #17-27 CR 2017-19397 11/14/17: No action required. Air monitor resumed normal operation when power was restored.

11/14/17: Operability verified @ 1043 hours0.0121 days 0.29 hours 0.00172 weeks 3.968615e-4 months .

Ideal sample collected for sample period:

21,400 cf.

Air 10S3 11/21/17 to 11/29/17 Flow rate upon arrival was 1.9 cfm, below the procedural range of 2.0-2.4 cfm. This was most likely due to change in air temperature from previous sampling period.

Continuous sampling during sample period.

CA #17-28 CR 2017-19981 11/29/17: Flow rate was adjusted to 2.2 cfm upon departure.

11/29/17: Operability verified @ 0941 hours0.0109 days 0.261 hours 0.00156 weeks 3.580505e-4 months .

Ideal sample collected for sample period:

23,900 cf.

([FHSWLRQV7DEOH (continued)

Date Sample Type Location Code(s)

Sample Period Reason for Occurrence(s)

Corrective Action DEC Air 12S1 12/20/17 to 12/27/17 (momentary loss of 12kV power)

Momentary loss of power on 12/25/17.

No loss of sampling time as determined by timer box during weekly collection.

Non-continuous sampler operation.

CA #17-29 CR 2017-21240 12/25/17: No action required. Air monitor resumed normal operation when power was restored.

12/26/17: Operability verified @ 0905 hours0.0105 days 0.251 hours 0.0015 weeks 3.443525e-4 months .

Ideal sample collected for sample period:

21,700 cf.

Air 10S3 12/20/17 to 12/27/17 (loss of 40 hours4.62963e-4 days 0.0111 hours 6.613757e-5 weeks 1.522e-5 months )

Power outage date and time unknown.

Loss of 40 hours4.62963e-4 days 0.0111 hours 6.613757e-5 weeks 1.522e-5 months as determined by timer box during weekly collection.

Pump malfunction-upon arrival pump was providing an inadequate flow rate of 1.3 cfm.

Non-continuous sampler operation.

CA #17-30 CR 2017-21289 12/27/17: Air monitor resumed operation when power was restored. Pump was replaced and air flow verification was performed.

12/27/17: Operability verified @ 1049 hours0.0121 days 0.291 hours 0.00173 weeks 3.991445e-4 months .

Atypically low sample collected for sample period: 14,800 cf.

Air 3S2 & 9B1 12/20/17 to 12/27/17 (loss of 0.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months )

Power outage dates and times unknown.

Loss of 0.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months as determined by timer boxes during weekly collection.

Non-continuous sampler operation.

CA #17-31 CR 2017-21296 12/27/17: No action required. Air monitors resumed normal operation when power was restored.

12/27/17: Operability verified @ 0907 hours0.0105 days 0.252 hours 0.0015 weeks 3.451135e-4 months for 3S2 and @ 1056 hours0.0122 days 0.293 hours 0.00175 weeks 4.01808e-4 months for 9B1.

Ideal samples collected for sample period:

22,200 cf.- 3S2 23,300 cf.- 9B1 D.

Quality Assurance Program Teledyne Brown Engineering The quality of the results obtained by TBE is ensured by the implementation of the Quality Assurance Program as described in the Teledyne Brown Engineering Quality Assurance Manual and the Teledyne Brown Engineering Procedure Manual.

E.

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

Environmental Resource Associates (ERA) and Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP),

were evaluated against the following pre-set acceptance criteria:

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

2. ERA Evaluation Criteria ERAs evaluation report provides an acceptance range for control and warning limits with associated flag values. ERAs acceptance limits are established per the USEPA, National Environmental Laboratory Accreditation Conference (NELAC), state-specific Performance Testing (PT) program requirements or ERAs 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 MAPEPs evaluation report provides an acceptance range with associated flag values. MAPEP defines three levels of performance:

Acceptable (flag = A) - result within +/- 20% of the reference value Acceptable with Warning (flag = W) - result falls in the

+/- 20% to +/- 30% of the reference value Not Acceptable (flag = N) - bias is greater than 30% of the reference value Teledyne Brown Engineering For the TBE laboratory, 168 out of 173 analyses performed met the specified acceptance criteria. Five analyses did not meet the specified acceptance criteria for the following reasons and were addressed through the TBE Corrective Action Program.

Note: The Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP) samples are created to mimic conditions found at DOE sites which do not resemble typical environmental samples obtained at commercial nuclear power facilities.

TZRQXFOLGHVLQWKH(5$$SULOZDWHUVDPSOH were evaluated asNot Acceptable. (NCR 17-09)

D The Zn-65 result of 39.3 pCi/L, exceeded the lower

acceptance limit of 47.2. The known value was unusually

low for this study. The sample was run in duplicate on two

different detectors. The results of each were 39.3 +/- 18.2

pCi/L (46% error and lower efficiency) and 59.3 +/- 8.23 pCi/L

(13.9% error and higher efficiency). The result from the 2nd

detector would have been well within the acceptable range

(47.2 - 65.9) and 110.2% of the known value of 53.8 pCi/L.

E The Sr-89 result of 40.7 pCi/L exceeded the lower

acceptance limit of 53.8. All associated QC and recoveries

were reviewed and no apparent cause could be determined

for the failure. The prior three cross-check results were

from 99 - 115% of the known values and the one that

followed this sample (November, 2017) was 114% of the

known value.

The DOE MAPEP August 2017 air particulate U-238 result of

0.115 +/- 0.025 Bq/sample was higher than the known value of

0.087 +/- 0.002 with a ratio of 1.32, therefore the upper ratio of

1.30 (acceptable with warning) was exceeded. TBEs result

with error easily overlaps with the acceptable range. MAPEP

does not evaluate results with any associated error. Also, the

spike level for this sample was very low (2.35 pCi) compared to

TBEs normal LCS of 6 pCi. TBE considers this result as

passing. (NCR 17-15)

The Analytics September 2017 soil Cr-51 result was evaluated

as Not Acceptable (Ratio of TBE to known result at 0.65). The reported value was 0.230 +/- 0.144 pCi/g and the known value was 0.355 +/- 0.00592 pCi/g. The sample was counted overnight for 14 hours1.62037e-4 days 0.00389 hours 2.314815e-5 weeks 5.327e-6 months , however the Cr-51 was spiked at a very low level and had a counting error of 65%. Cr-51 has a 27-day half-life, making low-level quantification even more difficult.

The error does not appear to have been taken into consideration for this result. If it had been evaluated with the error, the highest result would have been 105% of the reference value, which is acceptable. Also, the known value is significantly lower than TBEs typical MDC for this nuclide in a soil matrix and would typically not be reported to clients (unless specified). The results of all of the previous cross-checks have been in the acceptable (80 - 120%) range. TBE will evaluate further upon completion of the next ICP sample. (NCR 17-16) 4.

The ERA November 2017 water Sr-90 sample was evaluated as Not Acceptable. TBEs result of 27.1 pCi/L exceeded the lower acceptance range (30.8 - 48.0 pCi/L). After reviewing the associated QC data for this sample, it was determined that although the spike recovery for Sr-90 was within our laboratory guidelines (70% -130%), both the spike result and our ERA result were biased low. The original cross-check sample was completely consumed and we were unable to reanalyze before submitting the result. We have modified our preparation process to avoid this situation for future cross-check samples.

We also have enhanced LIMS programming to force a LCSD when a workgroup includes cross-check samples (as opposed to running a DUP).

(NCR 17-19)

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

In addition, Susquehanna Nuclears REMP Laboratory Spike Program provided independently procured Analytics spiked samples as part of Susquehanna Nuclears Quality Control Spike Program.

The criteria for the acceptability of the spiked analysis results were established by Susquehanna Nuclear and are based on criteria originally developed by the NRC. The criteria are based on an empirical relationship that combines prior experience and accuracy needs. As the resolution of the measurement process improves, the criteria for determining acceptability become tighter.

Conversely, as the resolution of the process decreases, the criteria for determining acceptability become wider.

IV.

Results and Discussion The analytical results of the 2017 REMP samples are divided into categories based on exposure pathways: atmospheric, direct radiation, terrestrial, and aquatic. The analytical results for the 2017 REMP are summarized in Appendix A, Program Summary. The data for individual samples are presented in Appendix C, Data Tables. The data are compared to the formal preoperational environmental monitoring program data (April 1972 to September 1982) and to data during operations. The data collected demonstrates that the SSES REMP was conducted in compliance with the TRM and the SSES ODCM.

A.

Atmospheric Atmospheric REMP sampling included the collection of air particulates, air iodine and direct radiation samples.

1.

Air Particulates Air particulate samples were collected weekly at six indicator locations (3S2, 9B1, 10S3, 12E1, 12S1 and 13S6) and two control locations (6G1 and 8G1). Each of the samples collected for the year were analyzed for gross beta. Quarterly composites of the weekly samples from each location were analyzed for specific gamma emitters.

Gross Beta Gross beta activity was detected in 318 of 318 of the indicator location samples at concentrations ranging from 3 to 23 E-3 pCi/m3 with an average concentration of 12 E-3 pCi/m3, and in 106 of 106 of the control location samples at concentrations ranging from 5 to 22 E-3 pCi/m3 with an average of 11 E-3 pCi/m3. The maximum preoperational level detected was 102 E-3 pCi/m3 with an average concentration of 62 E-3 pCi/m3.

(Table C-1, Appendix C); Historical levels of gross beta are shown in Figure C-1. Results for gross beta analysis from 1974 to current year are plotted.

Gamma Spectrometry Gamma spectrometry was performed on each of the 32 quarterly composite samples. Beryllium-7, attributed to cosmic ray activity in the atmosphere, was detected in all 24 indicator location composites at concentrations ranging from 70 E-3 to 153 E-3 pCi/m3 with an average concentration of 109 E-3 pCi/m3, and in the eight control location composites ranging in concentration from 86 to 141 E-3 pCi/m3 with an average concentration of 109 E-3 pCi/m3.

The maximum preoperational level detected was 85 E-3 pCi/m3 with an average concentration of 74 E-3 pCi/m3. (Table C-2, Appendix C)

All other gamma emitters were less than the LLD.

2.

Air Iodine Filtered air iodine samples were collected weekly at six indicator locations (3S2, 12E1, 12S1, 13S6, 9B1, and 10S3) and two control locations (6G1 and 8G1). Each of the samples collected for the year were analyzed for I-131.

Iodine-131 Iodine-131 was not detected in any indicator location samples or control location samples. Preoperational data is not available for comparison. (Table C-3, Appendix C)

B.

Direct Radiation Ambient radiation levels in the environs were measured with a pair of optically stimulated luminescent dosimeters (OSLD) composed of aluminum oxide crystals supplied and processed by Landauer.

Packets containing OSLDs for quarterly exposure were placed in the owner-controlled area and around the site at various distances and in each land-based meteorological sector. Emphasis was placed on special interest areas such as population centers, nearby residences, and schools.

A total of 57 locations were monitored for direct radiation during 2017, including 32 site boundary locations, 14 outer distant locations, six special interest locations and five control locations.

The average dose rate for the 208 indicator dosimeters was 16.5 milliroentgen per standard quarter. The average control dose rate for the 20 control dosimeters was 14.7 milliroentgen per standard quarter.

The preoperational average for the quarterly direct radiation readings was 17.6 milliroentgen per standard quarter. The results of the direct radiation measurements for 2017 confirmed that the radiation levels in the vicinity of the SSES were similar to previous years. (Table C-4, Appendix C); Figure C Ambient Radiation Levels Based on Environmental Dosimetry Data from 1973 to current year are plotted as quarterly averages.

C.

Terrestrial Terrestrial REMP sampling included the collection of milk, groundwater, drinking water, vegetation and soil samples.

1.

Milk Milk samples were collected biweekly when cows were on pasture and monthly when cows were not grazing on pasture.

Animals are considered on pasture from April to October of each year. Samples were collected in new polyethylene containers and transported in ice chests with no preservatives added to the milk.

Milk samples were collected at local dairy farms from 2 indicator locations (5E2 and 13E3) and one control location (10G1). Each sample was analyzed for I-131 and gamma emitters.

Iodine-131 Iodine-131 was not detected above minimum detectable concentration in any of the 63 samples analyzed.

Preoperational data is not available for comparison. (Table C-5, Appendix C); Figure C Iodine-131 Activity in Milk results from 1976 to 2017 are plotted.

Gamma Spectrometry Naturally occurring K-40 was detected in all 63 samples with concentrations for the 42 indicator location samples ranging from 1,091 to 1,595 pCi/L with an average concentration of 1,323 pCi/L, and the 21 control location sample concentrations ranging from 1,170 to 1,672 pCi/L with an average concentration of 1,366 pCi/L. The maximum preoperational level detected was 1,500 pCi/L with an average concentration of 1,358 pCi/L.

All other gamma emitters were less than the LLD.

2. Groundwater An expanded groundwater monitoring network was initiated in 2006 for the SSES as part of a site-wide hydrogeological investigation in accordance with the Nuclear Energy Institute (NEI) Groundwater Protection Initiative (GPI). The additional groundwater monitoring wells are sampled as part of the Radiological Environmental Monitoring Program (REMP) to regularly assess groundwater quality and provide early detection of any inadvertent leaks or spills of radioactive materials that could reach groundwater. Groundwater is sampled quarterly and analyzed for H-3 and gamma activity.

Additionally, precipitation sampling was initiated in 2007 and analyzed for H-3 activity to assess the influence of station airborne H-3 emissions on groundwater H-3 activities.

Precipitation washout monitoring data is not used in dose calculations; however, the data does give a gross indication of H-3 which makes its way into surface water and soil where it eventually seeps into shallow groundwater. The annual average H-3 concentrations in precipitation, groundwater monitoring wells and surface water are summarized in Table C-7 and graphically depicted in Figure C Annual Average Tritium Activity (pCi/L) in Precipitation and Surface Water Versus Groundwater.

Groundwater samples were collected quarterly at 14 indicator locations (2S2, 4S4, 6S10, 11S2, 1S3, 4S8, 4S9, 8S4, 7S10, 13S7, 2S8, 6S11A, 6S12 and 7S11) and one control location, (12F3). Each sample was analyzed for H-3 and gamma emitters.

Tritium Tritium activity was detected above the minimum detectable concentration in four of the 56 indicator location samples with concentrations ranging from 140 to 209 pCi/L with an average concentration of 179 pCi/L. No H-3 was detected in any of the four control location samples. The maximum preoperational level detected was 119 pCi/L. (Table C-6, Appendix C); Figure C Annual Average Tritium Activity (pCi/L) in Precipitation and Surface Water Versus Groundwater results from 2007 to 2017 are plotted.

Gamma Spectrometry Naturally occurring K-40 was detected in two of the 56 indicator samples at a concentration of 117 pCi/L. No K-40 was detected in the control location samples. Preoperational data is not available for comparison. (Table C-6, Appendix C)

Naturally occurring Th-228 was not detected in any of the indicator or control location samples. Preoperational data is not available for comparison. (Table C-6, Appendix C)

All other gamma emitters were less than the LLD.

3.

Drinking Water Drinking water samples were collected monthly from one location (12H2). Each sample was analyzed for gross beta, H-3 and gamma emitters.

Gross Beta Gross beta activity was detected in six of the 12 drinking water samples. Sample concentrations ranged from 2 to 4 pCi/L with an average concentration of 3 pCi/L. The maximum preoperational level detected was 2.8 pCi/L with an average concentration of 1.8 pCi/L. (Table C-8, Appendix C); Figure C Gross Beta Activity in Drinking Water results from 1977 to 2017 are plotted.

Tritium Tritium activity was not detected in any of the samples. The maximum preoperational level detected was 194 pCi/L with an average of 132 pCi/L. (Table C-8, Appendix C)

Gamma Spectrometry Naturally occurring K-40 was not detected in any of the samples. Preoperational data is not available for comparison.

(Table C-8, Appendix C)

All other gamma emitters were less than the LLD.

4. Food Products Food products from four indicator locations (3S3, 12F7, 11D1, and 11S6) and one control location (8G1) were collected throughout the growing season. All samples (vegetable and broadleaf) were analyzed for gamma emitters and included soy beans, potatoes, field corn, pumpkin, kale, swiss chard and collards.

Gamma Spectrometry Naturally occurring Be-7, attributed to cosmic ray activity in the atmosphere, was detected in 17 of the 32 indicator location samples with concentrations ranging from 387 to 1,215 pCi/kg wet with an average concentration of 703 pCi/kg wet, and in 7 of the control location samples with concentrations ranging from 336 to 963 pCi/kg wet with an average concentration of 537 pCi/kg wet. Preoperational data is not available for comparison.

Naturally occurring K-40 was detected in all 32 indicator location samples with concentrations ranging from 2,658 to 13,540 pCi/kg wet with an average concentration of 5,017 pCi/kg wet, and in all 14 control location samples with concentrations ranging from 2,744 to 6,308 pCi/kg wet with an average concentration of 4,603 pCi/kg wet. The maximum preoperational level detected was 4,800 pCi/kg wet with an average concentration of 2,140 pCi/kg wet.

Naturally occurring Ac-228 was not detected in any of the indicator or control locations. Preoperational data is not available for comparison.

Naturally occurring Th-228 was not detected in any of the indicator or control locations. Preoperational data is not available for comparison. (Table C-9, Appendix C)

All other gamma emitters were less than the LLD.

5.

Soil Soil samples were collected annually from two indicator locations (12S1 and 10S3) and one control location (8G1).

Each sample was analyzed for gamma emitters.

Gamma Spectrometry Naturally occurring K-40 was detected in all four indicator location samples at concentrations ranging from 9,623 to 13,320 pCi/kg dry with an average concentration of 11,336 pCi/kg dry, and in both of the control location samples at concentrations ranging from 8,166 to 9,559 pCi/kg dry with an average concentration of 8,863 pCi/kg dry. The maximum preoperational level detected was 11,000 pCi/kg dry with an average concentration of 9,800 pCi/kg dry.

Cesium-137 was detected in one of the four indicator location samples at a concentration of 129 pCi/kg dry. Cesium-137 was detected in one of the two control location samples with a concentration of 122 pCi/kg dry. The maximum preoperational level detected was 1,200 pCi/kg dry with an average concentration of 700 pCi/kg dry.

Naturally occurring Ra-226 was detected in two of the indicator location samples at concentrations ranging from 2,724 to 4,274 pCi/kg dry with an average concentration of 3,498 pCi/kg dry, and was detected in one of the two control location samples with a concentration of 2,221 pCi/kg dry. The maximum preoperational level detected was 1,300 pCi/kg dry with an average concentration of 1,100 pCi/kg dry.

Naturally occurring Ac-228 was detected in three of the four indicator location samples at concentrations ranging from 840 to 919 pCi/kg dry with an average concentration of 885 pCi/kg dry, and in all of the control location samples at concentrations ranging from 890 to 1,174 pCi/kg dry with an average concentration of 1,032 pCi/kg dry. Preoperational data is not available for comparison.

Naturally occurring Th-228 was detected in all of the four indicator location samples at concentrations ranging from 682 to 1,064 pCi/kg dry and an average concentration of 910 pCi/kg dry, and in all of the control location samples at concentrations ranging from 722 to 1,117 pCi/kg dry with an average concentration of 919 pCi/kg dry. The maximum preoperational level detected was 1,300 pCi/kg dry with an average concentration of 1,100 pCi/kg dry. (Table C-10, Appendix C)

All other gamma emitters were less than the LLD.

D.

Aquatic Aquatic samples include surface water, fish and sediment samples.

1.

Surface Water Surface water samples were collected routinely at six indicator locations (6S5, 2S7, LTAW, 4S7, 5S12, 5S9 and 7S12) and one control location (6S6). Each sample was analyzed for H-3 and gamma emitters.

Tritium Tritium activity was detected in 10 of 42 indicator location samples with concentrations ranging from 207 to 2,070 pCi/L with an average concentration of 620 pCi/L. The range of H-3 levels in surface water are biased high due to inclusion of samples from the cooling tower blowdown line (CTBD; location 2S7). Routine station operation includes infrequent batch releases of slightly radioactive water which are discharged into the CTBD. When the H-3 concentration from CTBD samples is averaged with those obtained from Susquehanna River downstream monitoring locations, the result is an overall indicator location average that is higher than the actual average H-3 levels of the downstream river water.

No radioactivity attributable to station operations was identified above analysis detection levels in any samples from the Susquehanna River in 2017. Tritium was not detected in any of the control location samples. The maximum preoperational level detected was 319 pCi/L, with an average concentration of 140 pCi/L. (Table C-11, Appendix C) Figure C Tritium Activity in Surface

Water, results from 1972 to 201 are plotted.

Gamma Spectrometry Naturally occurring K-40 was not detected in any of the indicator or control location samples. Preoperational data is not available for comparison.

Naturally occurring Th-228 was detected in 1 of the control location samples with a concentration of 4 pCi/L.

Preoperational data is not available for comparison. (Table C-11, Appendix C)

Iodine-131 Iodine-131 was not detected in any of the indicator or control samples. The maximum preoperational level detected was 0.43 pCi/L, with an average concentration of 0.33 pCi/L. (Table C-11, Appendix C)

All other gamma emitters were less than the LLD.

2.

Fish Edible species of fish were collected in the spring and fall of 2017 at two indicator locations (IND [Susquehanna River] and LTAW, only collected in the fall) and one control location (2H

[Susquehanna River]). Each sample was analyzed for gamma emitters.

Gamma Spectrometry Naturally occurring K-40 was detected in all indicator location samples at concentrations ranging from 3,207 to 5,499 pCi/kg wet with an average concentration of 4,062 pCi/kg wet, and in all control location samples at concentrations ranging from 2,649 to 4,298 pCi/kg wet with an average concentration of 3,669 pCi/kg wet. The maximum preoperational level detected was 3,600 pCi/kg dry with an average concentration of 3,871 pCi/kg dry. (Table C-12, Appendix C)

All other gamma emitters were less than the LLD 3.

Shoreline Sediment Sediment samples were collected from the Susquehanna River in the spring and fall at two indicator locations (7B and 12F) and one control location (2B). Each sample was analyzed for gamma emitters.

Gamma Spectroscopy Naturally occurring K-40 was detected in all four of the indicator location samples at concentrations ranging from 7,204 to 10,320 pCi/kg dry with an average concentration of 9,160 pCi/kg dry, and in all of the control location samples with concentrations ranging from 11,480 to 19,550 pCi/kg dry with an average concentration of 15,515 pCi/kg dry. The maximum preoperational level detected was 11,000 pCi/kg dry with an average concentration of 8,500 pCi/kg dry.

Cesium-137 was detected in one of the two control location samples with a concentration of 114 pCi/kg dry. The maximum preoperational level detected was 210 pCi/kg dry with an average concentration of 110 pCi/kg dry.

Naturally occurring Ra-226 was detected in one of the indicator location samples at concentrations with a concentration of 1,887 pCi/kg dry. Naturally occurring Ra-226 was not detected in any of the control samples. The maximum preoperational level detected was 1,900 pCi/kg dry with an average concentration of 700 pCi/kg dry.

Naturally occurring Ac-228 was detected in all four indicator location samples at concentrations ranging from 468 to 911 pCi/kg dry with an average concentration of 771 pCi/kg dry, and in both of the control location samples at concentrations ranging from 984 to 1,004 pCi/kg dry with an average concentration of 994 pCi/kg dry. Preoperational data is not available for comparison. (Table C-13, Appendix C)

Naturally occurring Th-228 was detected in all of the four indicator location samples at concentrations ranging from 587 to 901 pCi/kg dry with an average concentration of 781 pCi/kg dry, and in both of the control location samples at concentrations ranging from 883 and 1,196 pCi/kg dry with an average concentration of 1,040 pCi/kg dry. The maximum preoperational level detected was 3,200 pCi/kg dry with an average concentration of 1,300 pCi/kg dry.

All other gamma emitters were less than the LLD.

E.

Land Use Census SYNOPSIS OF 2017 LAND USE CENSUS Ecology III, Inc. conducted a Land Use Census during the 2017 growing season around SSES to comply with the ODCM.

The purpose of the survey was to document the nearest milk animal, residence and garden greater than 50 m2 (approximately 500 ft2) producing broad leaf vegetation within a distance of 8 km (approximately 5 miles) in each of the 16 meteorological sectors surrounding the SSES.

Distance in Miles from the SUSQUEHANNA NUCLEAR Reactor Buildings Meteorological Sector Nearest Residence Sept, 2017 miles Nearest Garden Sept, 2017 miles Nearest Dairy Farm Sept, 2017 miles 1 N 1.3 3.2

>5.0 2 NNE 1.0 2.3 a,c,e

>5.0 3 NE 0.9 2.7

>5.0 4 ENE 2.1 2.4 a,b,c

>5.0 5 E 1.4 4.3 4.5 d 6 ESE 0.5 3.1

>5.0 7 SE 0.5 0.6

>5.0 8 SSE 0.6 2.9

>5.0 9 S 1.0 3.5

>5.0 10 SSW 0.9 1.3

>5.0 11 SW 1.5 1.9

>5.0 12 WSW 1.3 1.3 1.7 d 13 W 1.2 2.0 5.0 14 WNW 1.1 1.3

>5.0 15 NW 0.8 2.3 a,c

>5.0 16 NNW 0.6 4.0

>5.0 a Chickens raised for consumption at this location b Ducks raised for consumption at this location c Eggs consumed from chickens at this location d Fruits/vegetables raised for consumption at this location e Beef cattle raised for consumption at this location The 2017 Land Use Census results are summarized in the above table.

V.

Annotations to Previous AREOR There are no annotations to the previous AREOR.

VI.

Conclusions The Radiological Environmental Monitoring Program for SSES was conducted during 2017 in accordance with the SSES TRM and ODCM. The LLD values required by the TRM and ODCM were achieved for this reporting period (See Appendix A and Appendix C). The objectives of the program were also met during this period. The data collected assists in demonstrating that SSES was operated in compliance with TRM and ODCM requirements.

The concentration of radioactive material in the environment that could be attributable to SSES operations was only a small fraction of the concentration of naturally occurring and man-made radioactivity. Since these results were comparable to the results obtained during the preoperational phase of the program, which ran from 1972 to 1982, and with results collected since commercial operation, it is concluded that operation of the SSES had no significant radiological impact on the health and safety of the public or the environment.

From the results obtained, it can be concluded that the levels and fluctuations of radioactivity in environmental samples were as expected for the environment surrounding the SSES.

VII.

References

[1]

Annual Radiological Environmental Operating Report, January 1 to December 31, 2016, prepared by Teledyne Brown Engineering, Knoxville TN.

[2]

Final Safety Analysis Report

[3]

Final Environmental Statement

[4]

Susquehanna Steam Electric Station, 2017 Land Use Census. Prepared for Susquehanna Nuclear, LLC, Berwick, PA. December 2017. Applied Ecoscience, Inc. Berwick, PA.

[5]

Google Earth. 2016. Website: http://earth.google.com.

[6]

Pennsylvania Department of Transportation. 1990. Columbia County General Highway Map. PA DOT, Harrisburg, PA.

[7]

Pennsylvania Department of Transportation. 1990. Luzerne County General Highway Map. PA DOT, Harrisburg, PA.

[8]

Susquehanna Nuclear, LLC. 2015. Radiological Environmental Monitoring Program, ODCM-QA-008, Rev. 18.

[9]

Susquehanna Steam Electric Station, 5-mile radius aerial photograph, REMPE-182244-0. Susquehanna Nuclear, Berwick, PA

[10]

United States Geological Survey. 1976. Berwick Quadrangle Topographic Map. 7.5 minute series. USGS, Reston, VA.

[11]

United States Geological Survey. 1977. Sybertsville Quadrangle Topographic Map. 7.5 minute series. USGS, Reston, VA.

[12]

United States Nuclear Regulatory Commission. An Acceptable Radiological Environmental Monitoring Program. Radiological Assessment Branch Technical Position. November 1979, Revision 1. USNRC, Washington, DC.

[13]

Susquehanna Nuclear, Engineering Study, EC-ENVR-1012 (Revision 2, February 2013), Interpretation of Environmental Direct Radiation Results.

[14]

Susquehanna Nuclear, Tritium Release REMP Calculation (RETDAS)

V.3.6.6) - March 2017.

[15]

NCRP Report No. 160, Ionizing Radiation Exposure of the Population of the United States, (2009).

APPENDIX A PROGRAM

SUMMARY

A-1

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Air Particulates GR-B 424 10 1.195E+01 (318/318) 12S1 1.243E+01 (53/53) 1.121E+01 (106/106) 0 (E-3 pCi/m3) 0.4 MILES WSW (3.510E+00 - 1.990E+01)

GAMMA 32 BE-7 32 N/A 1.088E+02 (24/24) 10S3 1.148E+02 (4/4) 1.091E+02 (8/8) 0 0.6 MILES SSW (7.664E+01 - 1.461E+02)

K-40 32 N/A 1.416E+00 (24/24) 12S1 4.837E+00 (4/4) 3.034E-02 (8/8) 0 0.4 MILES WSW

(-3.805E+00 - 1.219E+01)

CS-134 32 50 2.715E-01 (24/24) 12E1 7.624E-01 (4/4) 5.537E-01 (8/8) 0 4.7 MILES WSW (8.625E 1.439E+00)

CS-137 32 60 9.123E-02 (24/24) 6G1 4.697E-01 (4/4) 1.111E-01 (8/8) 0 13.5 MILES ESE

(-1.312E 1.041E+00)

Charcoal GAMMA 424 1.410E-01 (318/318) 13S6 5.567E-01 (53/53)

-5.770E-01 (106/106)

(E-3 pCi/m3)

I-131 424 70 0.4 MILES W

(-8.650E+00 - 1.090E+01) 0 Ambient Radiation OSLD 228 N/A 1.647E+01 (208/208) 9S2 3.297E+01 (4/4) 1.467E+01 (20/20) 0 (mR/std. qtr.)

0.2 MILES S (2.876E+01 - 4.057E+01)

Milk I-131 63 1

-4.607E-03 (42/42) 10G1 3.820E-02 (21/21) 3.820E-02 (21/21) 0 (pCi/Liter) 14 MILES SSW

(-2.760E 4.640E-01)

GAMMA 63 K-40 63 N/A 1.323E+03 (42/42) 10G1 1.366E+03 (21/21) 1.366E+03 (21/21) 0 14 MILES SSW (1.170E+03 - 1.672E+03)

CS-134 63 15

-1.620E+00 (42/42) 13E3

-9.101E-01 (21/21)

-1.414E+00 (21/21) 0 5.0 MILES W

(-1.224E+01 - 4.520E+00)

(3.150E+00 - 2.250E+01)

(7.037E+01 - 1.533E+02)

(-1.335E+01 - 1.325E+01)

(-5.641E 1.439E+00)

(-5.647E 7.591E-01)

Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

(4.650E+00 - 2.230E+01)

(8.550E+01 - 1.410E+02)

(-1.209E+01 - 1.089E+01)

(1.910E 1.212E+00)

(-4.738E 1.041E+00)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS

(-1.054E+01 - 1.198E+01)

(9.632E+00 - 4.057E+01)

(-4.240E 4.570E-01)

(1.091E+03 - 1.595E+03)

(-1.224E+01 - 4.520E+00)

(-1.058E+01 - 9.392E+00)

(1.111E+01 - 1.999E+01)

(-2.760E 4.640E-01)

(1.170E+03 - 1.672E+03)

(-8.172E+00 - 4.939E+00)

A-2

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Milk (cont'd)

CS-137 63 18 4.004E-01 (42/42) 13E3 7.709E-01 (21/21) 3.386E-01 (21/21) 0 (pCi/Liter) 5.0 MILES W

(-4.062E+00 - 4.625E+00)

BA-140 63 60

-1.279E+00 (42/42) 10G1 2.375E+00 (21/21) 2.375E+00 (21/21) 0 14 MILES SSW

(-1.037E+01 - 1.658E+01)

LA-140 63 15

-5.287E-01 (42/42) 5E2 2.768E-01 (21/21)

-1.018E-01 (21/21) 0 4.5 MILES E

(-4.288E+00 - 5.153E+00)

TH-228 63 N/A 1.185E+00 (42/42) 13E3 3.146E+00 (21/21) 1.129E+00 (21/21) 0 5.0 MILES W

(-7.449E+00 - 1.951E+01)

Ground Water H-3 60 2000 6.093E+01 (56/56) 4S8 1.382E+02 (4/4) 6.083E+01 (4/4) 0 (pCi/Liter) 0.1 MILES ENE (8.880E+01 - 2.020E+02)

GAMMA 60 K-40 60 N/A 1.991E+01 (56/56) 4S9 7.199E+01 (4/4)

-2.038E+01 (4/4) 0 0.3 MILES E (1.456E+01 - 1.548E+02)

MN-54 60 15

-4.363E-01 (56/56) 12F3 1.715E+00 (4/4) 1.715E+00 (4/4) 0 5.2 MILES WSW (1.082E+00 - 2.572E+00)

CO-58 60 15

-6.320E-01 (56/56) 2S2 9.962E-01 (4/4)

-4.384E+00 (4/4) 0 0.9 MILES NNE

(-1.406E+00 - 2.337E+00)

FE-59 60 30 1.658E+00 (56/56) 6S11A 8.042E+00 (4/4)

-1.034E+00 (4/4) 0 0.4 MILES ESE (1.150E+00 - 1.768E+01)

CO-60 60 15 2.983E-01 (56/56) 7S10 1.504E+00 (4/4) 4.234E-01 (4/4) 0 0.3 MILES SE

(-8.413E 2.494E+00)

(-4.062E+00 - 7.954E+00)

(-2.599E+01 - 2.387E+01)

(-6.704E+00 - 5.153E+00)

(-1.480E+01 - 1.951E+01)

(-3.120E+01 - 2.090E+02)

(-8.931E+01 - 1.548E+02)

(-6.126E+00 - 4.151E+00)

(-5.341E+00 - 4.297E+00)

(-9.994E+00 - 1.768E+01)

(-3.770E+00 - 4.221E+00)

(-3.916E+00 - 5.633E+00)

(-1.037E+01 - 1.658E+01)

(-4.889E+00 - 4.970E+00)

(-1.004E+01 - 1.127E+01)

(2.500E+01 - 1.130E+02)

(-7.228E+01 - 3.562E+01)

(1.082E+00 - 2.572E+00)

(-7.922E+00 - -1.593E+00)

(-3.666E+00 - 2.494E+00)

(-8.558E 2.770E+00)

A-3

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Ground Water (cont'd)

ZN-65 60 30

-2.436E+00 (56/56) 1S3 2.801E+00 (4/4) 1.354E+00 (4/4) 0 (pCi/Liter) 0.1 MILES N

(-4.689E+00 - 9.066E+00)

NB-95 60 15 1.037E+00 (56/56) 12F3 5.109E+00 (4/4) 5.109E+00 (4/4) 0 5.2 MILES WSW (2.229E+00 - 8.037E+00)

ZR-95 60 30 3.777E-01 (56/56) 11S2 3.741E+00 (4/4) 9.640E-01 (4/4) 0 0.4 MILES SW

(-6.942E 7.702E+00)

I-131 60 15 1.385E+00 (56/56) 2S2 4.103E+00 (4/4) 7.890E-01 (4/4) 0 0.9 MILES NNE (1.610E+00 - 8.314E+00)

CS-134 60 15 2.936E-01 (56/56) 6S10 3.340E+00 (4/4) 8.297E-01 (4/4) 0 0.4 MILES ESE (3.857E 8.906E+00)

CS-137 60 18

-4.305E-01 (56/56) 6S12 2.186E+00 (4/4)

-3.699E-01 (4/4) 0 0.8 MILES ESE

(-2.744E+00 - 6.076E+00)

BA-140 60 60

-2.337E+00 (56/56) 11S2 5.652E+00 (4/4)

-1.047E+00 (4/4) 0 0.4 MILES SW

(-2.950E 9.881E+00)

LA-140 60 15 2.554E-01 (56/56) 6S10 1.872E+00 (4/4) 1.234E+00 (4/4) 0 0.4 MILES ESE

(-3.253E 3.689E+00)

TH-228 60 N/A 1.134E-01 (56/56) 4S8 3.578E+00 (4/4) 4.175E-01 (4/4) 0 0.1 MILES ENE

(-5.512E+00 - 1.047E+01)

Drinking Water GR-B 12 4

2.042E+00 (12/12) 12H2 2.042E+00 (12/12) 0.00E+00 0

(pCi/Liter) 26 MILES WSW (8.380E 3.730E+00)

H-3 12 2000 5.449E+00 (12/12) 12H2 5.449E+00 (12/12) 0.00E+00 0

26 MILES WSW

(-4.890E+01 - 9.800E+01)

(-2.438E+01 - 9.995E+00)

(-5.985E+00 - 1.299E+01)

(-6.524E+00 - 7.702E+00)

(-5.631E+00 - 8.314E+00)

(-7.856E+00 - 8.906E+00)

(-4.890E+01 - 9.800E+01)

(-4.989E+00 - 6.076E+00)

(-3.224E+01 - 2.236E+01)

(-7.048E+00 - 6.329E+00)

(-1.511E+01 - 1.066E+01)

(8.380E 3.730E+00)

(-7.794E 2.598E+00)

(-2.308E+00 - 1.301E+00)

(-4.872E+00 - 2.411E+00)

(-8.652E 5.494E+00)

(-7.471E+00 - 9.537E+00)

(-4.890E+00 - 7.811E+00)

(2.229E+00 - 8.037E+00)

(-2.838E+00 - 7.306E+00)

(-3.647E+00 - 6.402E+00)

A-4

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Drinking Water (cont'd)

GAMMA 12 (pCi/Liter)

K-40 12 N/A 2.977E+00 (12/12) 12H2 2.977E+00 (12/12) 0.00E+00 0

26 MILES WSW

(-2.527E+01 - 3.581E+01)

MN-54 12 15

-4.160E-01 (12/12) 12H2

-4.160E-01 (12/12) 0.00E+00 0

26 MILES WSW

(-1.531E+00 - 3.237E-01)

CO-58 12 15

-1.161E-01 (12/12) 12H2

-1.161E-01 (12/12) 0.00E+00 0

26 MILES WSW

(-7.061E 8.841E-01)

FE-59 12 30 2.901E-01 (12/12) 12H2 2.901E-01 (12/12) 0.00E+00 0

26 MILES WSW

(-2.968E+00 - 3.245E+00)

CO-60 12 15 3.038E-01 (12/12) 12H2 3.038E-01 (12/12) 0.00E+00 0

26 MILES WSW

(-4.675E 1.248E+00)

ZN-65 12 30

-1.033E+00 (12/12) 12H2

-1.033E+00 (12/12) 0.00E+00 0

26 MILES WSW

(-3.835E+00 - 8.242E-01)

NB-95 12 15 3.131E-01 (12/12) 12H2 3.131E-01 (12/12) 0.00E+00 0

26 MILES WSW

(-2.334E 9.987E-01)

ZR-95 12 30 4.462E-02 (12/12) 12H2 4.462E-02 (12/12) 0.00E+00 0

26 MILES WSW

(-2.311E+00 - 1.257E+00)

I-131 12 15

-9.668E-01 (12/12) 12H2

-9.668E-01 (12/12) 0.00E+00 0

26 MILES WSW

(-6.069E+00 - 5.280E+00)

CS-134 12 15

-1.608E+00 (12/12) 12H2

-1.608E+00 (12/12) 0.00E+00 0

26 MILES WSW

(-4.372E+00 - 8.179E-01)

(-2.527E+01 - 3.581E+01)

(-1.531E+00 - 3.237E-01)

(-7.061E 8.841E-01)

(-2.968E+00 - 3.245E+00)

(-4.372E+00 - 8.179E-01)

(-4.675E 1.248E+00)

(-3.835E+00 - 8.242E-01)

(-2.334E 9.987E-01)

(-2.311E+00 - 1.257E+00)

(-6.069E+00 - 5.280E+00)

A-5

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Drinking Water (cont'd)

CS-137 12 18 1.258E-02 (12/12) 12H2 1.258E-02 (12/12) 0.00E+00 0

(pCi/Liter) 26 MILES WSW

(-7.414E 1.209E+00)

BA-140 12 60 2.483E+00 (12/12) 12H2 2.483E+00 (12/12) 0.00E+00 0

26 MILES WSW

(-5.140E+00 - 9.268E+00)

LA-140 12 15

-9.423E-01 (12/12) 12H2

-9.423E-01 (12/12) 0.00E+00 0

26 MILES WSW

(-4.716E+00 - 1.988E+00)

Food/Garden Crops GAMMA 46 (pCi/kg wet)

BE-7 46 N/A 4.214E+02 (32/32) 11S6 5.507E+02 (14/14) 3.943E+02 (14/14) 0 0.5 MILES SW (8.609E+01 - 1.215E+03)

K-40 46 N/A 5.017E+03 (32/32) 11D1 6.549E+03 (3/3) 4.603E+03 (14/14) 0 3.3 MILES SW (2.658E+03 - 1.354E+04)

MN-54 46 N/A

-4.772E-01 (32/32) 12F7 1.873E+01 (1/1)

-3.280E+00 (14/14) 0 8.3 MILES WSW (1.873E+01)

CO-58 46 N/A

-1.580E+00 (32/32) 12F7 6.452E+00 (1/1)

-2.293E+00 (14/14) 0 8.3 MILES WSW (6.452E+00)

FE-59 46 N/A

-4.097E-01 (32/32) 12F7 2.196E+01 (1/1) 4.188E+00 (14/14) 0 8.3 MILES WSW (2.196E+01)

CO-60 46 N/A 2.805E+00 (32/32) 11D1 1.138E+01 (3/3) 3.130E+00 (14/14) 0 3.3 MILES SW (8.120E+00 - 1.345E+01)

ZN-65 46 N/A

-1.420E+01 (32/32) 12F7 1.208E+01 (1/1)

-1.281E+01 (14/14) 0 8.3 MILES WSW (1.208E+01)

(-7.414E 1.209E+00)

(-5.140E+00 - 9.268E+00)

(-4.716E+00 - 1.988E+00)

(-1.908E+02 - 1.215E+03)

(-9.632E+01 - 3.540E+01)

(2.658E+03 - 1.354E+04)

(-1.544E+01 - 1.873E+01)

(-1.985E+01 - 2.125E+01)

(-2.786E+01 - 4.012E+01)

(-1.330E+01 - 3.904E+01)

(2.744E+03 - 6.308E+03)

(-2.446E+01 - 1.610E+01)

(-1.822E+01 - 8.621E+00)

(-4.584E+01 - 4.273E+01)

(-1.087E+01 - 1.972E+01)

(6.311E+01 - 9.629E+02)

(-6.477E+01 - 4.697E+01)

A-6

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Food/Garden Crops (cont'd) NB-95 46 N/A 4.366E+00 (32/32) 3S3 7.043E+00 (14/14) 1.303E+00 (14/14) 0 (pCi/kg wet) 0.9 MILES NE

(-8.764E+00 - 1.859E+01)

ZR-95 46 N/A 1.876E+00 (32/32) 12F7 1.739E+01 (1/1) 1.230E+00 (14/14) 0 8.3 MILES WSW (1.739E+01)

I-131 46 60 4.549E-01 (32/32) 8G1 1.986E+00 (14/14) 1.986E+00 (14/14) 0 12 MILES SSE

(-2.067E+01 - 2.180E+01)

CS-134 46 60

-1.416E+00 (32/32) 11S6 3.041E+00 (14/14) 1.046E+00 (14/14) 0 0.5 MILES SW

(-1.366E+01 - 3.292E+01)

CS-137 46 80

-2.862E+00 (32/32) 8G1

-1.251E+00 (14/14)

-1.251E+00 (14/14) 0 12 MILES SSE

(-1.731E+01 - 2.355E+01)

BA-140 46 N/A 2.759E+00 (32/32) 3S3 1.405E+01 (14/14)

-1.686E+00 (14/14) 0 0.9 MILES NE

(-5.235E+01 - 8.139E+01)

LA-140 46 N/A

-1.943E+00 (32/32) 3S3 9.805E-01 (14/14)

-3.169E+00 (14/14) 0 0.9 MILES NE

(-2.158E+01 - 2.174E+01)

AC-228 46 N/A 6.435E+00 (32/32) 3S3 1.328E+01 (14/14) 3.796E+00 (14/14) 0 0.9 MILES NE

(-3.105E+01 - 6.956E+01)

TH-228 46 N/A

-1.946E+00 (32/32) 12F7 6.502E+01 (1/1) 4.187E+00 (14/14) 0 8.3 MILES WSW (6.502E+01)

Soil GAMMA 6

(pCi/kg dry)

K-40 N/A 1.134E+04 (4/4) 12S1 1.194E+04 (2/2) 8.863E+03 (2/2) 0 0.4 MILES WSW (1.055E+04 - 1.332E+04)

CS-134 6

150

-5.731E+00 (4/4) 12S1 1.638E+00 (2/2)

-1.917E+01 (2/2) 0 0.4 MILES WSW

(-3.160E+00 - 6.435E+00)

(-1.009E+01 - 2.030E+01)

(-3.750E+01 - 3.439E+01)

(-2.630E+01 - 2.915E+01)

(-2.247E+01 - 3.292E+01)

(9.623E+03 - 1.332E+04)

(-3.795E+01 - 1.175E+01)

(-1.686E+01 - 7.985E+00)

(-1.196E+02 - 8.139E+01)

(-2.158E+01 - 2.174E+01)

(-3.616E+01 - 9.020E+01)

(-3.867E+01 - 6.502E+01)

(-1.731E+01 - 2.355E+01)

(-4.751E+01 - 5.065E+01)

(-1.547E+01 - 1.878E+01)

(-3.336E+01 - 2.343E+01)

(-2.593E+01 - 2.813E+01)

(-1.121E+01 - 1.349E+01)

(-2.043E+01 - 2.356E+01)

(-2.067E+01 - 2.180E+01)

(-2.197E+01 - 4.954E+01)

(8.166E+03 - 9.559E+03)

(-2.894E+01 - -9.403E+00)

A-7

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Soil (cont'd)

CS-137 6

180 7.923E+01 (4/4) 8G1 1.226E+02 (2/2) 1.226E+02 (2/2) 0 (pCi/kg dry) 12 MILES SSE (1.218E+02 - 1.234E+02)

RA-226 6

N/A 2.506E+03 (4/4) 12S1 2.969E+03 (2/2) 2.089E+03 (2/2) 0 0.4 MILES WSW (1.666E+03 - 4.272E+03)

AC-228 6

N/A 8.232E+02 (4/4) 8G1 1.032E+03 (2/2) 1.032E+03 (2/2) 0 12 MILES SSE (8.898E+02 - 1.174E+03)

TH-228 6

N/A 9.104E+02 (4/4) 12S1 9.478E+02 (2/2) 9.193E+02 (2/2) 0 0.4 MILES WSW (9.382E+02 - 9.574E+02)

Surface Water H-3 56 2000 1.912E+02 (42/42) 2S7 4.771E+02 (13/13) 1.526E+01 (14/14) 0 (pCi/Liter) 0.1 MILES NNE

(-3.370E+01 - 2.070E+03)

GAMMA 56 K-40 N/A

-9.579E-01 (42/42) 5S12 2.494E+01 (4/4) 3.836E+00 (14/14) 0 0.4 MILES E

(-2.698E+01 - 8.060E+01)

MN-54 56 15

-3.249E-01 (42/42) 2S7 1.843E-01 (13/13)

-6.570E-02 (14/14) 0 0.1 MILES NNE

(-8.764E 2.304E+00)

CO-58 56 15

-2.827E-01 (42/42)

LTAW 4.051E-01 (4/4)

-4.659E-02 (14/14) 0 0.7 MILES NE-ESE

(-7.123E 1.804E+00)

FE-59 56 30 6.752E-01 (42/42) 5S9 2.839E+00 (1/1) 1.859E+00 (14/14) 0 0.8 MILES E (2.839E+00)

CO-60 56 15 6.793E-01 (42/42) 5S12 2.459E+00 (4/4) 1.132E-01 (14/14) 0 0.4 MILES E (2.396E 4.401E+00)

(2.858E+01 - 1.290E+02)

(1.363E+03 - 4.272E+03)

(6.365E+02 - 9.186E+02)

(-1.055E+01 - 8.066E+00)

(-1.610E+00 - 4.401E+00)

(6.821E+02 - 1.064E+03)

(-7.270E+01 - 2.070E+03)

(-8.097E+01 - 8.060E+01)

(-5.608E+00 - 2.304E+00)

(-3.269E+00 - 1.804E+00)

(7.215E+02 - 1.117E+03)

(-6.410E+01 - 6.970E+01)

(-1.809E+01 - 5.088E+01)

(-7.457E 7.202E-01)

(-1.004E+00 - 1.139E+00)

(1.218E+02 - 1.234E+02)

(1.956E+03 - 2.221E+03)

(8.898E+02 - 1.174E+03)

(-1.036E+00 - 5.645E+00)

(-9.640E 7.473E-01)

A-8

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Surface Water (cont'd)

ZN-65 56 30

-3.123E+00 (42/42) 5S12 6.138E-01 (4/4)

-2.566E+00 (14/14) 0 (pCi/Liter) 0.4 MILES E

(-3.676E+00 - 6.889E+00)

NB-95 56 15 5.118E-01 (42/42) 7S12 1.718E+00 (4/4) 5.133E-01 (14/14) 0 0.3 MILES SE (2.378E 5.636E+00)

ZR-95 56 30 4.696E-01 (42/42)

LTAW 3.856E+00 (4/4)

-5.613E-01 (14/14) 0 0.7 MILES NE-ESE (2.146E+00 - 5.460E+00)

I-131 56 15 1.066E+00 (42/42) 5S12 2.666E+00 (4/4)

-3.391E-01 (14/14) 0 0.4 MILES E

(-1.627E 5.980E+00)

CS-134 56 15

-9.125E-01 (42/42) 7S12 5.111E-01 (4/4)

-1.769E+00 (14/14) 0 0.3 MILES SE

(-4.306E+00 - 5.002E+00)

CS-137 56 18 3.110E-02 (42/42) 4S7 1.046E+00 (4/4) 7.761E-02 (14/14) 0 0.4 MILES ENE

(-2.134E+00 - 6.820E+00)

BA-140 56 60

-6.633E-01 (42/42) 5S9 5.793E+00 (1/1) 1.334E+00 (14/14) 0 0.8 MILES E (5.793E+00)

LA-140 56 15

-2.500E-01 (42/42) 2S7 5.231E-01 (13/13) 3.226E-01 (14/14) 0 0.1 MILES NNE

(-2.926E+00 - 4.452E+00)

TH-228 56 N/A 1.933E+00 (42/42) 7S12 5.842E+00 (4/4) 1.109E+00 (14/14) 0 0.3 MILES SE (2.703E+00 - 7.598E+00)

Fish GAMMA 14 (pCi/kg wet)

K-40 N/A 4.062E+03 (8/8)

IND 4.245E+03 (6/6) 3.669E+03 (6/6) 0 0.9-1.4 MILES ESE (3.207E+03 - 5.499E+03)

(-6.053E+00 - 1.093E+01)

(3.207E+03 - 5.499E+03)

(-5.299E+00 - 1.221E+01)

(-5.380E+00 - 5.002E+00)

(-3.146E+00 - 6.820E+00)

(-1.243E+01 - 1.051E+01)

(-6.505E+00 - 7.344E+00)

(-1.667E+01 - 6.889E+00)

(-3.083E+00 - 5.636E+00)

(-5.244E+00 - 5.940E+00)

(-8.232E+00 - 7.090E-01)

(-7.015E 1.934E+00)

(-2.198E+00 - 1.155E+00)

(-1.703E+00 - 3.614E+00)

(2.649E+03 - 4.298E+03)

(-6.797E+00 - 5.787E+00)

(-7.790E+00 - 9.296E-01)

(-1.307E+00 - 1.369E+00)

(-9.345E+00 - 1.311E+01)

(-3.715E+00 - 4.096E+00)

A-9

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Fish (cont'd)

MN-54 14 130

-1.076E+01 (8/8) 2H 1.371E+01 (6/6) 1.371E+01 (6/6) 0 (pCi/kg wet) 30 MILES NNE

(-1.537E+00 - 2.205E+01)

CO-58 14 130

-1.219E+00 (8/8)

IND 2.750E-01 (6/6)

-5.734E+00 (6/6) 0 0.9-1.4 MILES ESE

(-1.770E+01 - 3.834E+01)

FE-59 14 260 2.376E+01 (8/8)

LTAW 3.174E+01 (2/2)

-5.368E+00 (6/6) 0 0.7 MILES NE-ESE

(-7.880E+00 - 7.135E+01)

CO-60 14 130 3.707E+00 (8/8)

LTAW 1.596E+01 (2/2) 9.556E+00 (6/6) 0 0.7 MILES NE-ESE (1.091E+01 - 2.101E+01)

ZN-65 14 260

-4.677E+01 (8/8) 2H

-1.898E+01 (6/6)

-1.898E+01 (6/6) 0 30 MILES NNE

(-4.915E+01 - 4.833E+01)

CS-134 14 130

-2.183E+01 (8/8)

IND

-7.173E+00 (6/6)

-1.503E+01 (6/6) 0 0.9-1.4 MILES-ESE

(-3.532E+01 - 1.689E+01)

CS-137 14 150 1.036E+01 (8/8)

LTAW 1.565E+01 (2/2) 4.094E+00 (6/6) 0.7 MILES NE-ESE

(-4.221E+00 - 3.553E+01) 0 Sediment GAMMA 6

(pCi/kg dry)

K-40 N/A 9.160E+03 (4/4) 2B 1.552E+04 (2/2) 1.552E+04 (2/2) 0 1.6 MILES NNE (1.148E+04 - 1.955E+04)

CS-134 6

150 6.843E+01 (4/4) 12F 1.207E+02 (2/2)

-5.710E+00 (2/2) 0 6.9 MILES WSW (7.487E+00 - 2.340E+02)

CS-137 6

180 1.986E+01 (4/4) 2B 6.926E+01 (2/2) 6.926E+01 (2/2) 0 1.6 MILES NNE (2.441E+01 - 1.141E+02)

(-2.390E+01 - 2.101E+01)

(-1.252E+02 - 2.806E+01)

(-8.099E+01 - 1.689E+01)

(-1.825E+01 - 3.553E+01)

(7.204E+03 - 1.032E+04)

(-2.522E+01 - -3.750E+00)

(-1.770E+01 - 3.834E+01)

(-5.295E+01 - 7.135E+01)

(7.487E+00 - 2.340E+02)

(3.780E+00 - 3.799E+01)

(-5.006E+01 - 3.864E+01)

(2.441E+01 - 1.141E+02)

(5.903E+00 - 1.417E+01)

(-4.915E+01 - 4.833E+01)

(-4.996E+01 - 2.565E+00)

(-7.219E+00 - 1.848E+01)

(1.148E+04 - 1.955E+04)

(-1.537E+00 - 2.205E+01)

(-1.838E+01 - 1.598E+01)

(-3.850E+01 - 4.668E+01)

A-10

LOWER LIMIT NUMBER OF MEDIUM OR PATHWAY OF CONTROL LOCATION NONROUTINE SAMPLED DETECTION MEAN (3)

NAME MEAN (3)

MEAN (3)

REPORTED (UNIT OF MEASUREMENT)

(LLD) (2)

RANGE DISTANCE AND DIRECTION RANGE RANGE MEASURMENTS Reporting Period: December 28, 2016 to January 01, 2018 TABLE A

SUMMARY

OF DATA FOR SSES OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM NAME OF FACILITY: SUSQUEHANNA STEAM ELECTRIC STATION LOCATION OF FACILITY: LUZERNE COUNTY, PENNSYLVANIA ANALYSIS AND TOTAL NUMBER OF ANALYSIS PERFORMED (1)

LOCATION WITH HIGHEST MEAN ALL INDICATOR LOCATIONS Sediment (cont'd)

RA-226 6

N/A 1.561E+03 (4/4) 2B 1.866E+03 (2/2) 1.866E+03 (2/2) 0 (pCi/kg dry) 1.6 MILES NNE (1.483E+03 - 2.248E+03)

AC-228 6

N/A 7.708E+02 (4/4) 2B 9.939E+02 (2/2) 9.939E+02 (2/2) 0 1.6 MILES NNE (9.837E+02 - 1.004E+03)

TH-228 6

N/A 7.809E+02 (4/4) 2B 1.040E+03 (2/2) 1.040E+03 (2/2) 0 1.6 MILES NNE (8.834E+02 - 1.196E+03)

1. The total number of analyses does not include duplicates, splits or repeated analyses.

2. The Technical Requirement LLDs are shown when applicable.

3. The mean and range are based on all available measure results. The ratio indicated in parentheses is the total number of results used to calculate the mean to the total number of samples.

4. USNRC Reporting Levels are specified in the Technical Requirments (i.e., when Reporting Levels in Technical Requirements are exceeded).

(5.869E+02 - 9.008E+02)

(9.950E+02 - 1.887E+03)

(4.677E+02 - 9.113E+02)

(1.483E+03 - 2.248E+03)

(9.837E+02 - 1.004E+03)

(8.834E+02 - 1.196E+03)

A-11

Intentionally left blank A-12

APPENDIX B SAMPLE DESIGNATION AND LOCATIONS B-1

SAMPLE DESIGNATION All distances from the SSES to monitoring locations are measured from the standby gas treatment vent at 44200/N34117 (Pa. Grid System). The location codes are based on both distance and direction from the SSES. The letters in the location codes indicate if the monitoring locations are on site (within the site boundary) or, if they are not on site, the approximate distances of the location from the SSES as described below:

S

= On site E

= 4 - 5 miles A

= < 1 mile F

= 5 - 10 miles B

= 1 - 2 miles G

= 10 - 20 miles C

= 2 - 3 miles H

= > 20 miles D

= 3 - 4 miles The numbers preceding the letters in the location codes provide the direction of the monitoring locations from the SSES by indicating the sectors in which they are located. A total number of 16 sectors (numbered one through 16) equally divide an imaginary circle on a map of the SSES and its vicinity, with the SSES at the center of the circle. The middle of sector one is directed due North (N). Moving clockwise from sector one, the sector immediately adjacent to sector one is sector two, the middle of which is directed due north, north east (NNE). Continuing to move clockwise the sector number increases to 16, which is the north northwest sector (NNW).

B-2

TABLE B-1 SAMPLING LOCATIONS Specific information about the individual sampling locations are given in Table B-1. Maps B-1 through B-6 show the locations of sampling stations with respect to the Site. A Portable Global Positioning System (GPS) was used to provide the coordinates of sampling locations.

STATION CODE STATION LOCATION LATITUDINAL LONGITUDINAL SAMPLE TYPE LESS THAN ONE MILE FROM THE SSES DEG.

DEG.

2S7 0.1 mi.NNE 41.093540

-76.144773 Surface water 5S9 0.8 mi.E; 41.093292

-76.130472 Surface water 5S12 0.4 mi.E; 41.092540

-76.138704 Surface water 7S12 0.3 mi.SE; 41.088507

-76.143270 Surface water 6S5 0.9 mi.ESE; 41.084639

-76.130642 Surface water 6S6 **

0.8 mi.ESE; 41.088115

-76.131637 Surface water LTAW 0.7 mi.NE-ESE; 41.098356

-76.135401 Surface water 4S7 0.4 mi.ENE; 41.094418

-76.138236 Surface water LTAW 0.7 mi.NE-ESE; 41.098356

-76.135401 Fish 10S3 0.6 mi. SSW; 41.085264

-76.152128 Air, Soil 12S1 0.4 mi.WSW; 41.088436

-76.154314 Air 13S6 0.4 mi.W; 41.091771

-76.153869 Air 3S2 0.5 mi NE; 41.095716

-76.140207 Air 12S1 0.4 mi.WSW; 41.088436

-76.154314 Soil 2S8 0.1 mi.NNE; 41.094991

-76..044207 Ground water 2S2 0.9 mi.NNE; 41.102243

-76.136702 Ground water 4S4 0.5 mi.ENE; 41.095471

-76.138798 Ground water 6S10 0.4 mi.ESE; 41.090511

-76.137802 Ground water 6S11A 0.4 mi.ESE; 41.083448

-76.133412 Ground water 6S11B 0.4 mi.ESE; 41.083448

-76.133411 Ground water 6S12 0.8 mi.ESE; 41.083411

-76.116935 Ground water 7S11 0.3 mi.SE; 41.083527

-76.133513 Ground water 11S2 0.4 mi.SW; 41.088816

-76.152793 Ground water 1S3 0.1 mi N; 41.093640

-76.146076 Ground water

- Control Location B-3

TABLE B-1 (contd)

SAMPLING LOCATIONS STATION CODE STATION LOCATION LATITUDINAL LONGITUDINAL SAMPLE TYPE LESS THAN ONE MILE FROM THE SSES DEG.

DEG.

4S8 0.1 mi.ENE; 41.092306

-76.144283 Ground water 4S9 0.3 mi.E; 41.093369

-76.141644 Ground water 8S4 0.1 mi.SSE; 41.091424

-76.145531 Ground water 7S10 0.3 mi.SE; 41.089736

-76.142783 Ground water 13S7 0.2 mi.W; 41.091236

-76.149647 Ground water 3S2 0.5 mi.NE; 41.095716

-76.140207 Precipitation 12S1 0.4 mi.WSW; 41.088436

-76.154314 Precipitation 11S6 0.5 mi.SW; 41.085305

-76.152022 Broadleaf 3S3 0.9 mi.NE; 41.101856

-76.133090 Broadleaf 5S10 0.7 mi.E; 41.0.93899

-76.132814 Broadleaf Site 1 0.1 mi.ESE; 41.092275

-76.145022 Precipitation Site 2 0.1 mi.SSE; 41.091309

-76.145708 Precipitation Site 3 0.1 mi.WSW; 41.091243

-76.147345 Precipitation Site 4 0.1 mi.NW; 41.093321

-76.147316 Precipitation FROM ONE to FIVE MILES FROM THE SSES IND 0.9 mi.ESE; 41.085141

-76.130174 Fish IND 1.4 mi.ESE; 41.075618

-76.132682 Fish 2B **

1.6 mi.NNE; 41.112441

-76.134758 Sediment 7B 1.2 mi.SE; 41.078924

-76.131548 Sediment 9B1 1.3 mi. SSW; 41.085264

-76.152128 Air, Precipitation 12E1 4.7 mi.WSW; 41.072418

-76.230554 Air 5E2 4.5 mi.E; 41.085184

-76.061099 Milk 8C1 2.9 mi.SSE; 41.054518

-76.129027 Broadleaf 10B5 1.3 mi.SSW; 41.075404

-76.157422 Broadleaf 13E3 5.0 mi.W; 41.100259

-76.241102 Milk 11D1 3.3 mi.SW; 41.055212

-76.186797 Food Products 11D2 3.5 mi.SW; 41.054827

-76.205081 Food products

- Control Location B-4

TABLE B-1 (contd)

SAMPLING LOCATIONS STATION CODE STATION LOCATION LATITUDINAL LONGITUDINAL SAMPLE TYPE GREATER THAN FIVE MILES FROM THE SSES DEG.

DEG.

12H2 26 mi.WSW; 40.947192

-76.604524 Drinking water 2H **

30 mi.NNE; 41.459508

-75.853096 Fish 12F 6.9 mi.WSW; 41.041323

-76.255396 Sediment 6G1 **

13.5 mi.ESE; 41.018989

-75.906515 Air 8G1 **

12 mi.SSE; 40.928886

-76.055092 Air, Precipitation, Soil, Broadleaf 10G1 **

14 mi.SSW; 40.934847

-76.284449 Milk 12F3 **

5.2 mi.WSW; 41.054491

-76.232176 Ground water 12F7 8.3 mi.WSW; 41.036689

-76.286776 Food Products 11F2 5.5 mi.SW; 41.045741

-76.242128 Food products 15G1 **

11.4 mi.NW; 41.188578

-76.324598 Broadleaf OSLD LOCATIONS LESS THAN ONE MILE FROM THE SSES 1S2 0.2 mi.N; 41.09566

-76.146121 OSLD 2S2 0.9 mi.NNE; 41.10207

-76.141192 OSLD 2S3 0.2 mi.NNE; 41.09486

-76.144101 OSLD 3S2 0.5 mi.NE; 41.09574

-76.140086 OSLD 3S3 0.9 mi.NE; 41.10183

-76.133127 OSLD 4S3 0.2 mi.ENE; 41.09322

-76.141934 OSLD 4S6 0.7 mi.ENE; 41.09687

-76.133807 OSLD 5S4 0.8 mi.E; 41.09286

-76.131604 OSLD 5S7 0.3 mi.E; 41.09199

-76.141165 OSLD 6S4 0.2 mi.ESE; 41.09132

-76.142616 OSLD 6S9 0.2 mi.ESE; 41.09067

-76.142966 OSLD 7S6 0.2 mi.SE; 41.08972

-76.14359 OSLD

Special Interest Area (other than controls)

- Control Location B-5

TABLE B-1 (contd)

SAMPLING LOCATIONS STATION CODE STATION LOCATION LATITUDINAL LONGITUDINAL SAMPLE TYPE LESS THAN ONE MILE FROM THE SSES DEG.

DEG.

7S7 0.4 mi.SE; 41.08745

-76.142033 OSLD 8S2 0.2 mi.SSE; 41.08907

-76.14437 OSLD 9S2 0.2 mi.S; 41.08952

-76.14322 OSLD 10S1 0.4 mi.SSW; 41.08663

-76.150082 OSLD 10S2 0.2 mi.SSW; 41.08894

-76.147881 OSLD 11S7 0.4 mi.SWN; 41.08832

-76.15297 OSLD 12S1 0.4 mi.WSW; 41.0887

-76.154112 OSLD 12S3 0.4 mi.WSW; 41.08968

-76.153192 OSLD 13S2 0.4 mi.W; 41.09198

-76.153166 OSLD 13S5 0.4 mi.W; 41.09179

-76.153167 OSLD 13S6 0.4 mi.W; 41.09177

-76.154073 OSLD 14S5 0.5 mi.WNW; 41.09503

-76.153787 OSLD 15S5 0.4 mi.NW; 41.09576

-76.15103 OSLD 16S1 0.3 mi.NNW; 41.09611

-76.147388 OSLD 16S2 0.3 mi.NNW; 41.09599

-76.148922 OSLD 6A4

0.6 mi.ESE; 41.08791

-76.136795 OSLD 8A3 0.9 mi.SSE; 41.07982

-76.1139078 OSLD 15A3

0.9 mi.NW; 41.10003

-76.1585 OSLD 16A2

0.8 mi.NNW; 41.1025

-76.151595 OSLD FROM ONE to FIVE MILES FROM THE SSES 12S7 1.1 mi.WSW; 41.08621

-76.165914 OSLD 8B2

1.4 mi.SSE; 41.07483

-76.130724 OSLD 9B1 1.3 mi.S; 41.07356

-76.147874 OSLD 10B3

1.7 mi.SSW; 41.07064

-76.156646 OSLD 1D5 4.0 mi.N; 41.14936

-76.144346 OSLD 8D3 4.0 mi.SSE; 41.03824

-76.121683 OSLD

Special Interest Area (other than controls)

B-6

TABLE B-1 (contd)

SAMPLING LOCATIONS STATION CODE STATION LOCATION LATITUDINAL LONGITUDINAL SAMPLE TYPE FROM ONE to FIVE MILES FROM THE SSES DEG.

DEG.

9D4 3.6 mi.S; 41.04015

-76.144529 OSLD 10D1 3.0 mi.SSW; 41.05446

-76.175026 OSLD 12D2 3.7 mi.WSW; 41.07363

-76.213306 OSLD 14D1 3.6 mi.WNW; 41.10706

-76.211891 OSLD 3E1 4.7 mi NE; 41.13953

-76.082398 OSLD 4E2 4.7 mi.ENE; 41.12157

-76.064115 OSLD 5E2 4.5 mi. E; 41.08539

-76.060486 OSLD 6E1 4.7 mi.ESE; 41.07275

-76.059529 OSLD 7E1 4.2 mi.SE; 41.04891

-76.090309 OSLD 11E1 4.7 mi. SW; 41.05188

-76.218713 OSLD 12E1

4.7 mi.WSW; 41.0725

-76.230331 OSLD 13E4 4.1 mi.W; 41.08962

-76.223726 OSLD GREATER THAN FIVE MILES FROM THE SSES 2F1 5.9 mi.NNE; 41.16796

-76.09146 OSLD 15F1 5.4 mi.NW; 41.15595

-76.202506 OSLD 16F1 7.8 mi.NNW; 41.18985

-76.229283 OSLD 3G4 **

17 mi.NE; 41.23431

-76.869061 OSLD 4G1 **

14 mi.ENE; 41.13898

-75.885121 OSLD 7G1 **

14 mi.SE; 40.94636

-76.974184 OSLD 12G1 **

15 mi.WSW; 41.0262

-76.411566 OSLD 12G4 **

10 mi. WSW; 40.03868

-76.327731 OSLD

Special Interest Area (other than controls)

- Control Location B-7

TABLE B-2 SUSQUEHANNA STEAM ELECTRIC STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Sample Medium Analysis Sampling Method Collection Procedure Number Analytical Procedure Number Ambient Radiation Dosimeter Quarterly SSES, HP-TP-205 Landauer Procedure L313, Inlight Dosimeter Analysis Air Gross Beta Weekly Applied Ecoscience, Appendix 2 TBE-2008 Gross Alpha and/or Gross Beta Activity in Various Matrices.

Air I-131 Weekly Applied Ecoscience, Appendix 2 TBE-2012 Radioiodine in Various Matrices Air Gamma Quarterly Applied Ecoscience, Appendix 2 TBE-2007 Gamma Emitting Radioisotope Analysis Drinking Water Gross Beta Monthly Applied Ecoscience, Appendix 5 TBE-2008 Gross Alpha and/or Gross Beta Activity in Various Matrices.

Surface &

Drinking Water Tritium Monthly (LTAW, 4S7, 5S12 and 7S12 Quarterly)

Applied Ecoscience, Appendix 3, 4, 5, 6, & 7 TBE-2010 Tritium and Carbon-14 Analysis by Liquid Scintillation.

Surface &

Drinking Water Gamma Monthly (LTAW, 4S7, 5S12 and 7S12 Quarterly)

Applied Ecoscience, Appendix 3, 4, 5, 6, & 7 TBE-2007 Gamma Emitting Radioisotope Analysis.

Ground Water Tritium Quarterly Applied Ecoscience, Appendix 8 TBE-2010 Tritium and Carbon-14 Analysis by Liquid Scintillation Ground Water Gamma Quarterly Applied Ecoscience, Appendix 8 TBE-2007 Gamma Emitting Radioisotope Analysis B-8

TABLE B-2 (cont'd)

SUSQUEHANNA STEAM ELECTRIC STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM Sample Medium Analysis Sampling Method Collection Procedure Number Analytical Procedure Number Precipitation Tritium Monthly (Apr - Nov) /

Quarterly Applied Ecoscience, Appendix 10 TBE-2010 Tritium and Carbon-14 Analysis by Liquid Scintillation Milk Gamma Monthly/Bi-Weekly Applied Ecoscience, Appendix 9 TBE-2007 Gamma Emitting Radioisotope Analysis Milk I-131 Monthly/Bi-Weekly Applied Ecoscience, Appendix 9 TBE-2012 Radioiodine in Various Matrices Fish Gamma Semi-Annually (Spring/Fall)

Applied Ecoscience, Appendix 11 TBE-2007 Gamma Emitting Radioisotope Analysis Sediment Gamma Semi-Annually (Spring/Fall)

Applied Ecoscience, Appendix 12 TBE-2007 Gamma Emitting Radioisotope Analysis Fruits &

Vegetables Gamma In Season (When available)

Applied Ecoscience, Appendix 13 Applied Ecoscience, Appendix 15 TBE-2007 Gamma Emitting Radioisotope Analysis Soil Gamma Annually Applied Ecoscience, Appendix 14 TBE-2007 Gamma Emitting Radioisotope Analysis B-9

MAP B-1 Direct Radiation Monitoring Locations Within One Mile B-10

MAP B-2 Direct Radiation Monitoring Locations From One to Five Miles

\\_ *..

J.lfl'ltlllle i-*

I

\\....... ~

B-11

MAP 8-3 Direct Radiation Monitoring Locations Greater Than Five Miles B-12

MAP 8-4 Environmental Sampling Locations Within One Mile B-13

MAP B-5 Environmental Sampling Locations From One to Five Miles B-14

MAP 8-6 Environmental Sampling Locations Greater Than Five Miles B-15

Intentionally left blank B-16

APPENDIX C DATA TABLES C-1

TABLE C-1 GROSS BETA ANALYSES OF AIR PARTICULATE FILTERS SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in units of E-03 pCi/cu.m. +/- 2 sigma COLLECTION PERIOD 3S2 6G1 8G1 12E1 12S1 13S6 12/28/16 - 01/04/17 6 +/- 2 6 +/- 2 6 +/- 2 8 +/- 2 8 +/- 2 5 +/- 2 01/04/17 - 01/11/17 11 +/- 2 9 +/- 2 8 +/- 2 10 +/- 2 10 +/- 2 10 +/- 2 01/11/17 - 01/18/17 14 +/- 2 13 +/- 2 11 +/- 2 14 +/- 2 15 +/- 2 11 +/- 2 01/18/17 - 01/25/17 8 +/- 2 6 +/- 2 5 +/- 2 6 +/- 2 8 +/- 2 8 +/- 2 01/25/17 - 02/01/17 9 +/- 2 7 +/- 2 9 +/- 2 8 +/- 2 9 +/- 2 9 +/- 2 02/01/17 - 02/08/17 13 +/- 2 14 +/- 2 13 +/- 2 16 +/- 2 16 +/- 2 13 +/- 2 02/08/17 - 02/15/17 8 +/- 2 11 +/- 2 10 +/- 2 11 +/- 2 11 +/- 2 11 +/- 2 02/15/17 - 02/22/17 10 +/- 2 10 +/- 2 12 +/- 2 11 +/- 2 15 +/- 2 13 +/- 2 02/22/17 - 03/02/17 12 +/- 2 9 +/- 2 11 +/- 2 13 +/- 2 14 +/- 2 12 +/- 2 03/02/17 - 03/08/17 11 +/- 2 12 +/- 2 12 +/- 2 12 +/- 2 15 +/- 2 14 +/- 2 03/08/17 - 03/16/17 8 +/- 2 9 +/- 2 9 +/- 2 9 +/- 2 9 +/- 2 10 +/- 2 03/16/17 - 03/22/17 13 +/- 2 14 +/- 3 12 +/- 2 14 +/- 2 15 +/- 3 14 +/- 2 03/22/17 - 03/29/17 12 +/- 2 9 +/- 2 9 +/- 2 11 +/- 2 14 +/- 2 10 +/- 2 03/29/17 - 04/05/17 7 +/- 2 8 +/- 2 9 +/- 2 7 +/- 2 8 +/- 2 9 +/- 2 04/05/17 - 04/12/17 8 +/- 2 8 +/- 2 9 +/- 2 8 +/- 2 12 +/- 2 9 +/- 2 04/12/17 - 04/19/17 9 +/- 2 9 +/- 2 10 +/- 2 10 +/- 2 13 +/- 2 11 +/- 2 04/19/17 - 04/26/17 5 +/- 2 6 +/- 2 7 +/- 2 6 +/- 2 6 +/- 2 5 +/- 2 04/26/17 - 05/03/17 10 +/- 2 9 +/- 2 9 +/- 2 9 +/- 2 12 +/- 2 10 +/- 2 05/03/17 - 05/10/17 7 +/- 2 8 +/- 2 7 +/- 2 7 +/- 2 7 +/- 2 7 +/- 2 05/10/17 - 05/17/17 3 +/- 2 6 +/- 2 5 +/- 2 6 +/- 2 4 +/- 2 6 +/- 2 05/17/17 - 05/24/17 13 +/- 2 12 +/- 2 11 +/- 2 14 +/- 2 13 +/- 2 15 +/- 2 05/24/17 - 05/31/17 4 +/- 2 6 +/- 2 5 +/- 2 5 +/- 2 5 +/- 2 5 +/- 2 05/31/17 - 06/07/17 10 +/- 2 11 +/- 2 11 +/- 2 11 +/- 2 10 +/- 2 10 +/- 2 06/07/17 - 06/14/17 13 +/- 2 14 +/- 2 13 +/- 2 14 +/- 2 12 +/- 2 12 +/- 2 06/14/17 - 06/21/17 10 +/- 2 9 +/- 2 9 +/- 2 10 +/- 2 12 +/- 2 11 +/- 2 06/21/17 - 06/28/17 16 +/- 3 10 +/- 2 12 +/- 2 14 +/- 2 14 +/- 2 12 +/- 2 06/28/17 - 07/05/17 15 +/- 2 13 +/- 2 13 +/- 2 15 +/- 2 13 +/- 2 12 +/- 2 07/05/17 - 07/12/17 15 +/- 2 12 +/- 2 12 +/- 2 14 +/- 2 15 +/- 2 12 +/- 2 07/12/17 - 07/19/17 16 +/- 3 17 +/- 3 17 +/- 3 19 +/- 3 19 +/- 3 17 +/- 3 07/19/17 - 07/26/17 14 +/- 2 14 +/- 2 14 +/- 2 14 +/- 2 12 +/- 2 14 +/- 2 07/26/17 - 08/02/17 12 +/- 2 14 +/- 2 11 +/- 2 13 +/- 2 14 +/- 2 11 +/- 2 08/02/17 - 08/09/17 13 +/- 2 15 +/- 2 14 +/- 2 15 +/- 2 13 +/- 2 13 +/- 2 08/09/17 - 08/16/17 16 +/- 3 14 +/- 2 17 +/- 2 17 +/- 2 15 +/- 2 15 +/- 2 08/16/17 - 08/23/17 19 +/- 3 18 +/- 3 20 +/- 3 18 +/- 3 19 +/- 3 17 +/- 3 08/23/17 - 08/30/17 8 +/- 2 8 +/- 2 8 +/- 2 8 +/- 2 8 +/- 2 6 +/- 2 08/30/17 - 09/06/17 15 +/- 2 13 +/- 2 15 +/- 2 13 +/- 2 16 +/- 2 17 +/- 2 09/06/17 - 09/13/17 10 +/- 2 9 +/- 2 10 +/- 2 10 +/- 2 11 +/- 2 9 +/- 2 09/13/17 - 09/20/17 15 +/- 2 14 +/- 2 12 +/- 2 11 +/- 2 13 +/- 2 14 +/- 2 09/20/17 - 09/27/17 21 +/- 3 21 +/- 3 22 +/- 3 23 +/- 3 20 +/- 3 20 +/- 3 09/27/17 - 10/04/17 13 +/- 2 11 +/- 2 10 +/- 2 13 +/- 2 11 +/- 2 10 +/- 2 10/04/17 - 10/11/17 15 +/- 2 13 +/- 2 13 +/- 2 14 +/- 2 15 +/- 2 13 +/- 2 10/11/17 - 10/18/17 14 +/- 2 11 +/- 2 10 +/- 2 13 +/- 2 14 +/- 2 12 +/- 2 10/18/17 - 10/25/17 19 +/- 3 15 +/- 2 17 +/- 2 19 +/- 3 19 +/- 3 17 +/- 2 10/25/17 - 11/01/17 10 +/- 2 12 +/- 2 8 +/- 2 10 +/- 2 10 +/- 2 10 +/- 2 11/01/17 - 11/08/17 11 +/- 2 11 +/- 2 13 +/- 2 13 +/- 2 11 +/- 2 13 +/- 2 11/08/17 - 11/15/17 13 +/- 2 11 +/- 2 10 +/- 2 13 +/- 2 15 +/- 2 12 +/- 2 11/15/17 - 11/21/17 11 +/- 3 9 +/- 2 9 +/- 2 9 +/- 2 9 +/- 2 11 +/- 2 11/21/17 - 11/29/17 14 +/- 2 14 +/- 2 14 +/- 2 14 +/- 2 15 +/- 2 13 +/- 2 11/29/17 - 12/06/17 16 +/- 2 12 +/- 2 15 +/- 2 17 +/- 2 15 +/- 2 16 +/- 2 12/06/17 - 12/13/17 14 +/- 2 14 +/- 2 11 +/- 2 15 +/- 2 15 +/- 2 16 +/- 2 12/13/17 - 12/20/17 13 +/- 2 12 +/- 2 12 +/- 2 14 +/- 2 13 +/- 2 12 +/- 2 12/20/17 - 12/27/17 10 +/- 2 9 +/- 2 10 +/- 2 11 +/- 2 12 +/- 2 9 +/- 2 12/27/17 - 01/03/18 12 +/- 2 12 +/- 2 12 +/- 2 14 +/- 2 13 +/- 2 11 +/- 2 12 +/- 7 11 +/- 6 11 +/- 7 12 +/- 7 12 +/- 7 12 +/- 7 AVERAGE C-2

TABLE C-1 GROSS BETA ANALYSES OF AIR PARTICULATE FILTERS SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in units of E-03 pCi/cu.m. +/- 2 sigma COLLECTION PERIOD 9B1 12/28/16 - 01/04/17 7 +/- 2 6 +/- 2 01/04/17 - 01/11/17 12 +/- 2 13 +/- 2 01/11/17 - 01/18/17 13 +/- 2 13 +/- 2 01/18/17 - 01/25/17 8 +/- 2 8 +/- 2 01/25/17 - 02/01/17 8 +/- 2 9 +/- 2 02/01/17 - 02/08/17 15 +/- 2 15 +/- 2 02/08/17 - 02/15/17 11 +/- 2 11 +/- 2 02/15/17 - 02/22/17 11 +/- 2 12 +/- 2 02/22/17 - 03/02/17 13 +/- 2 13 +/- 2 03/02/17 - 03/08/17 13 +/- 2 13 +/- 2 03/08/17 - 03/16/17 9 +/- 2 10 +/- 2 03/16/17 - 03/22/17 14 +/- 2 16 +/- 3 03/22/17 - 03/29/17 11 +/- 2 12 +/- 2 03/29/17 - 04/05/17 8 +/- 2 8 +/- 2 04/05/17 - 04/12/17 12 +/- 2 10 +/- 2 04/12/17 - 04/19/17 8 +/- 2 10 +/- 2 04/19/17 - 04/26/17 5 +/- 2 6 +/- 2 04/26/17 - 05/03/17 10 +/- 2 9 +/- 2 05/03/17 - 05/10/17 7 +/- 2 8 +/- 2 05/10/17 - 05/17/17 5 +/- 2 3 +/- 2 05/17/17 - 05/24/17 13 +/- 2 14 +/- 2 05/24/17 - 05/31/17 5 +/- 2 6 +/- 2 05/31/17 - 06/07/17 11 +/- 2 12 +/- 2 06/07/17 - 06/14/17 12 +/- 2 12 +/- 2 06/14/17 - 06/21/17 9 +/- 2 10 +/- 2 06/21/17 - 06/28/17 14 +/- 2 14 +/- 2 06/28/17 - 07/05/17 12 +/- 2 14 +/- 2 07/05/17 - 07/12/17 14 +/- 2 13 +/- 2 07/12/17 - 07/19/17 18 +/- 3 18 +/- 3 07/19/17 - 07/26/17 14 +/- 2 14 +/- 2 07/26/17 - 08/02/17 11 +/- 2 13 +/- 2 08/02/17 - 08/09/17 14 +/- 2 15 +/- 2 08/09/17 - 08/16/17 16 +/- 3 18 +/- 3 08/16/17 - 08/23/17 20 +/- 3 17 +/- 3 08/23/17 - 08/30/17 11 +/- 2 10 +/- 2 08/30/17 - 09/06/17 16 +/- 2 14 +/- 2 09/06/17 - 09/13/17 10 +/- 2 10 +/- 2 09/13/17 - 09/20/17 13 +/- 2 13 +/- 2 09/20/17 - 09/27/17 19 +/- 3 18 +/- 3 09/27/17 - 10/04/17 12 +/- 2 12 +/- 2 10/04/17 - 10/11/17 14 +/- 2 15 +/- 2 10/11/17 - 10/18/17 11 +/- 2 12 +/- 2 10/18/17 - 10/25/17 18 +/- 3 20 +/- 3 10/25/17 - 11/01/17 10 +/- 2 10 +/- 2 11/01/17 - 11/08/17 12 +/- 2 13 +/- 2 11/08/17 - 11/15/17 12 +/- 2 12 +/- 2 11/15/17 - 11/21/17 9 +/- 2 11 +/- 3 11/21/17 - 11/29/17 16 +/- 2 15 +/- 2 11/29/17 - 12/06/17 15 +/- 2 15 +/- 2 12/06/17 - 12/13/17 15 +/- 2 14 +/- 2 12/13/17 - 12/20/17 14 +/- 2 14 +/- 2 12/20/17 - 12/27/17 12 +/- 2 11 +/- 3 12/27/17 - 01/03/18 14 +/- 2 14 +/- 2 12 +/- 7 12 +/- 7 AVERAGE 10S3 C-3

TABLE C-2 GAMMA SPECTROSCOPIC ANALYSES OF COMPOSITED AIR PARTICULATE FILTERS SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in units of E-03 pCi/cu.m. +/- 2 sigma COLLECTION SITE PERIOD Be-7 K-40 Cs-134 Cs-137 6G1 12/28/16 - 03/29/17 99 +/- 27

< 21

< 2

< 2 03/29/17 - 06/28/17 127 +/- 21

< 18

< 1

< 1 06/28/17 - 10/04/17 120 +/- 31

< 28

< 2

< 2 10/04/17 - 01/03/18 91 +/- 16

< 10

< 1

< 1 AVERAGE 109 +/- 33 8G1 12/28/16 - 03/29/17 86 +/- 18

< 10

< 1

< 1 03/29/17 - 06/28/17 113 +/- 20

< 16

< 1

< 1 06/28/17 - 10/04/17 141 +/- 27

< 23

< 1

< 1 10/04/17 - 01/03/18 96 +/- 21

< 23

< 1

< 1 AVERAGE 109 +/- 49 3S2 12/28/16 - 03/29/17 125 +/- 25

< 17

< 1

< 1 03/29/17 - 06/28/17 128 +/- 22

< 19

< 1

< 1 06/28/17 - 10/04/17 103 +/- 18

< 9

< 1

< 1 10/04/17 - 01/03/18 78 +/- 14

< 15

< 1

< 1 AVERAGE 108 +/- 46 12E1 12/28/16 - 03/29/17 93 +/- 23

< 22

< 1

< 1 03/29/17 - 06/28/17 153 +/- 23

< 22

< 1

< 1 06/28/17 - 10/04/17 105 +/- 19

< 19

< 1

< 1 10/04/17 - 01/03/18 93 +/- 21

< 24

< 2

< 2 AVERAGE 111 +/- 57 12S1 12/28/16 - 03/29/17 122 +/- 37

< 35

< 2

< 1 03/29/17 - 06/28/17 144 +/- 24

< 16

< 1

< 1 06/28/17 - 10/04/17 94 +/- 27

< 29

< 2

< 2 10/04/17 - 01/03/18 85 +/- 16

< 19

< 1

< 1 AVERAGE 111 +/- 53 13S6 12/28/16 - 03/29/17 126 +/- 29

< 19

< 1

< 1 03/29/17 - 06/28/17 124 +/- 20

< 16

< 1

< 1 06/28/17 - 10/04/17 92 +/- 30

< 31

< 2

< 2 10/04/17 - 01/03/18 87 +/- 21

< 23

< 1

< 2 AVERAGE 107 +/- 41 10S3 12/28/16 - 03/29/17 129 +/- 23

< 9

< 1

< 1 03/29/17 - 06/28/17 108 +/- 20

< 16

< 1

< 1 06/28/17 - 10/04/17 146 +/- 25

< 26

< 1

< 1 10/04/17 - 01/03/18 77 +/- 19

< 22

< 1

< 1 AVERAGE 115 +/- 60 9B1 12/28/16 - 03/29/17 70 +/- 30

< 20

< 1

< 1 03/29/17 - 06/28/17 109 +/- 24

< 24

< 1

< 2 06/28/17 - 10/04/17 132 +/- 19

< 19

< 1

< 1 10/04/17 - 01/03/18 90 +/- 15

< 18

< 1

< 1 AVERAGE 100 +/- 52 C-4

TABLE C-3 IODINE-131 ANALYSES OF AIR IODINE SAMPLES SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in units of E-03 pCi/cu.m. +/- 2 sigma COLLECTION PERIOD 3S2 6G1 8G1 12E1 12S1 13S6 12/28/16 - 01/04/17

< 11

< 3

< 8

< 4

< 10

< 11 01/04/17 - 01/11/17

< 15

< 16

< 15

< 6

< 14

< 15 01/11/17 - 01/18/17

< 14

< 19

< 18

< 14

< 15 01/18/17 - 01/25/17

< 18

< 13

< 17

< 18 01/25/17 - 02/01/17

< 11

< 9

< 8

< 11

< 11 02/01/17 - 02/08/17

< 10

< 8

< 9

< 9 02/08/17 - 02/15/17

< 19

< 8

< 18

< 18 02/15/17 - 02/22/17

< 19

< 20

< 19

< 10

< 18

< 18 02/22/17 - 03/02/17

< 15

< 17

< 16

< 17

< 15 03/02/17 - 03/08/17

< 18

< 19

< 7

< 18

< 18 03/08/17 - 03/16/17

< 16

< 12

< 16

< 16 03/16/17 - 03/22/17

< 11

< 12

< 5

< 4

< 11 03/22/17 - 03/29/17

< 19

< 17

< 19

< 19 03/29/17 - 04/05/17

< 12

< 4

< 12

< 19

< 12 04/05/17 - 04/12/17

< 14

< 12

< 11

< 15

< 14 04/12/17 - 04/19/17

< 19

< 12

< 4

< 11

< 19

< 19 04/19/17 - 04/26/17

< 15

< 12

< 15

< 14 04/26/17 - 05/03/17

< 14

< 17

< 16

< 15

< 14

< 14 05/03/17 - 05/10/17

< 11

< 12

< 11

< 11 05/10/17 - 05/17/17

< 18

< 19

< 18

< 17

< 17 05/17/17 - 05/24/17

< 15

< 6

< 15

< 15 05/24/17 - 05/31/17

< 17

< 19

< 18

< 7

< 16

< 16 05/31/17 - 06/07/17

< 18

< 9

< 8

< 17

< 17 06/07/17 - 06/14/17

< 12

< 8

< 12

< 12 06/14/17 - 06/21/17

< 8

< 19

< 20

< 7

< 18

< 18 06/21/17 - 06/28/17

< 11

< 9

< 3

< 10

< 10 06/28/17 - 07/05/17

< 18

< 15

< 14

< 17

< 17 07/05/17 - 07/12/17

< 20

< 14

< 5

< 19

< 19 07/12/17 - 07/19/17

< 12

< 10

< 4

< 11

< 11 07/19/17 - 07/26/17

< 20

< 15

< 5

< 19

< 8 07/26/17 - 08/02/17

< 16

< 14

< 13

< 16

< 15 08/02/17 - 08/09/17

< 18

< 17

< 9

< 17

< 17 08/09/17 - 08/16/17

< 17

< 16

< 6

< 17

< 16 08/16/17 - 08/23/17

< 8

< 15

< 14

< 16

< 16 08/23/17 - 08/30/17

< 18

< 14

< 11

< 19

< 18 08/30/17 - 09/06/17

< 10

< 9

< 8

< 11

< 10 09/06/17 - 09/13/17

< 12

< 11

< 10

< 13

< 13 09/13/17 - 09/20/17

< 11

< 8

< 6

< 12

< 11 09/20/17 - 09/27/17

< 9

< 7

< 9

< 9 09/27/17 - 10/04/17

< 8

< 17

< 18

< 20

< 19 10/04/17 - 10/11/17

< 17

< 12

< 17

< 17 10/11/17 - 10/18/17

< 7

< 12

< 17

< 16 10/18/17 - 10/25/17

< 13

< 9

< 12

< 5 10/25/17 - 11/01/17

< 10

< 8

< 10

< 10 11/01/17 - 11/08/17

< 12

< 11

< 10

< 12

< 11 11/08/17 - 11/15/17

< 10

< 7

< 9

< 9 11/15/17 - 11/21/17

< 19

< 14

< 18

< 17 11/21/17 - 11/29/17

< 14

< 16

< 13

< 14

< 11 11/29/17 - 12/06/17

< 13

< 7

< 13

< 12 12/06/17 - 12/13/17

< 20

< 10

< 20

< 8 12/13/17 - 12/20/17

< 10

< 7

< 10

< 4 12/20/17 - 12/27/17

< 12

< 9

< 13

< 12 12/27/17 - 01/03/18

< 12

< 7

< 12

< 12 AVERAGE C-5

TABLE C-3 IODINE-131 ANALYSES OF AIR IODINE SAMPLES SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in units of E-03 pCi/cu.m. +/- 2 sigma COLLECTION PERIOD 9B1 12/28/16 - 01/04/17

< 8

< 8 01/04/17 - 01/11/17

< 15

< 14 01/11/17 - 01/18/17

< 6

< 13 01/18/17 - 01/25/17

< 13

< 17 01/25/17 - 02/01/17

< 3

< 8 02/01/17 - 02/08/17

< 8

< 9 02/08/17 - 02/15/17

< 19

< 18 02/15/17 - 02/22/17

< 19

< 18 02/22/17 - 03/02/17

< 16

< 15 03/02/17 - 03/08/17

< 18

< 18 03/08/17 - 03/16/17

< 12

< 16 03/16/17 - 03/22/17

< 12

< 11 03/22/17 - 03/29/17

< 6

< 18 03/29/17 - 04/05/17

< 11

< 12 04/05/17 - 04/12/17

< 11

< 6 04/12/17 - 04/19/17

< 11

< 18 04/19/17 - 04/26/17

< 11

< 14 04/26/17 - 05/03/17

< 17

< 14 05/03/17 - 05/10/17

< 12

< 11 05/10/17 - 05/17/17

< 19

< 17 05/17/17 - 05/24/17

< 15

< 14 05/24/17 - 05/31/17

< 19

< 16 05/31/17 - 06/07/17

< 9

< 7 06/07/17 - 06/14/17

< 8

< 12 06/14/17 - 06/21/17

< 20

< 18 06/21/17 - 06/28/17

< 9

< 4 06/28/17 - 07/05/17

< 15

< 17 07/05/17 - 07/12/17

< 14

< 19 07/12/17 - 07/19/17

< 10

< 11 07/19/17 - 07/26/17

< 15

< 19 07/26/17 - 08/02/17

< 5

< 16 08/02/17 - 08/09/17

< 17

< 17 08/09/17 - 08/16/17

< 16

< 17 08/16/17 - 08/23/17

< 16

< 16 08/23/17 - 08/30/17

< 15

< 19 08/30/17 - 09/06/17

< 9

< 11 09/06/17 - 09/13/17

< 11

< 13 09/13/17 - 09/20/17

< 8

< 12 09/20/17 - 09/27/17

< 9

< 9 09/27/17 - 10/04/17

< 17

< 19 10/04/17 - 10/11/17

< 12

< 18 10/11/17 - 10/18/17

< 10

< 17 10/18/17 - 10/25/17

< 9

< 12 10/25/17 - 11/01/17

< 8

< 10 11/01/17 - 11/08/17

< 10

< 12 11/08/17 - 11/15/17

< 6

< 10 11/15/17 - 11/21/17

< 14

< 18 11/21/17 - 11/29/17

< 16

< 15 11/29/17 - 12/06/17

< 6

< 5 12/06/17 - 12/13/17

< 9

< 19 12/13/17 - 12/20/17

< 5

< 10 12/20/17 - 12/27/17

< 8

< 19 12/27/17 - 01/03/18

< 7

< 13 10S3 AVERAGE C-6

TABLE C-4 ENVIRONMENTAL OPTICALLY STIMULATED LUMINESCENCE DOSIMETRY RESULTS SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results (1) are in mR/std. qtr (2) +/- 2 sigma (3)

First Quarter Second Quarter Third Quarter Fourth Quarter 1/12/2017 to 4/12/2017 4/12/2017 to 7/12/2017 7/12/2017 to 10/12/2017 10/12/2017 to 1/12/2018 LOCATION ONSITE 1S2 18.0 +/- 1.6 18.0 +/- 2.2 24.0 +/- 1.2 17.9 +/- 3.4 2S2 12.2 +/- 1.6 13.2 +/- 1.5 16.7 +/- 0.2 12.2 +/- 0.6 2S3 16.7 +/- 0.1 18.3 +/- 1.0 22.7 +/- 1.1 16.1 +/- 1.2 3S2 11.6 +/- 0.0 14.2 +/- 0.5 17.5 +/- 0.2 12.5 +/- 1.7 3S3 11.1 +/- 0.2 14.8 +/- 3.8 14.8 +/- 0.8 10.6 +/- 0.1 4S3 17.6 +/- 2.2 22.1 +/- 0.9 23.6 +/- 0.4 15.1 +/- 0.3 4S6 11.8 +/- 0.2 13.6 +/- 0.6 17.0 +/- 1.0 10.5 +/- 0.8 5S4 9.94 +/- 1.0 12.9 +/- 1.3 14.4 +/- 1.1 10.0 +/- 0.7 5S7 11.7 +/- 1.4 15.1 +/- 1.4 18.3 +/- 0.8 13.4 +/- 0.8 6S4 18.5 +/- 0.3 22.7 +/- 0.4 26.6 +/- 1.1 19.2 +/- 1.2 6S9 17.1 +/- 1.1 21.2 +/- 0.6 24.9 +/- 1.3 18.9 +/- 0.9 7S6 16.9 +/- 0.4 18.5 +/- 0.4 22.5 +/- 0.1 17.1 +/- 0.8 7S7 10.0 +/- 1.6 12.5 +/- 0.4 15.6 +/- 2.5 12.2 +/- 0.9 8S2 17.7 +/- 1.6 21.7 +/- 0.6 21.0 +/- 4.2 25.3 +/- 0.4 9S2 29.6 +/- 1.9 33.0 +/- 1.0 40.6 +/- 3.2 28.8 +/- 1.0 10S1 11.4 +/- 0.2 13.4 +/- 0.8 15.9 +/- 0.9 12.2 +/- 0.6 10S2 23.4 +/- 0.5 25.7 +/- 0.2 35.6 +/- 0.3 25.0 +/- 0.3 11S7 16.3 +/- 4.9 13.7 +/- 1.1 18.0 +/- 2.9 12.6 +/- 0.4 12S1 14.3 +/- 0.4 15.7 +/- 0.9 18.7 +/- 0.2 13.4 +/- 1.8 12S3 15.5 +/- 0.7 18.9 +/- 2.1 22.3 +/- 0.0 15.1 +/- 0.3 12S7 11.6 +/- 0.2 12.7 +/- 1.7 15.9 +/- 1.1 12.2 +/- 0.6 13S2 21.9 +/- 1.9 25.3 +/- 0.6 30.2 +/- 3.5 21.3 +/- 1.1 13S5 23.0 +/- 1.9 25.6 +/- 0.5 31.5 +/- 2.2 21.2 +/- 0.8 13S6 17.3 +/- 0.1 18.9 +/- 1.2 18.9 +/- 3.7 15.3 +/- 0.6 14S5 15.4 +/- 0.1 17.6 +/- 0.1 21.5 +/- 1.6 15.6 +/- 0.4 15S5 13.9 +/- 1.1 15.6 +/- 0.9 18.9 +/- 0.5 14.4 +/- 0.5 16S1 16.9 +/- 1.5 20.6 +/- 0.9 24.2 +/- 1.5 17.5 +/- 1.4 16S2 15.1 +/- 0.4 19.0 +/- 0.1 22.1 +/- 0.8 14.9 +/- 1.6 See the comments at the end of this table.

C-7

TABLE C-4 ENVIRONMENTAL OPTICALLY STIMULATED LUMINESCENCE DOSIMETRY RESULTS SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results (1) are in mR/std. qtr (2) +/- 2 sigma (3)

First Quarter Second Quarter Third Quarter Fourth Quarter 1/12/2017 to 4/12/2017 4/12/2017 to 7/12/2017 7/12/2017 to 10/12/2017 10/12/2017 to 1/12/2018 LOCATION 0-1 MILE OFFSITE 6A4 14.5 +/- 1.7 15.4 +/- 1.0 18.2 +/- 0.4 13.7 +/- 0.1 8A3 10.8 +/- 0.9 12.0 +/- 1.8 15.4 +/- 1.1 11.3 +/- 0.6 15A3 10.2 +/- 1.2 12.2 +/- 0.6 15.0 +/- 0.5 11.1 +/- 1.5 16A2 10.6 +/- 1.5 12.0 +/- 0.5 15.5 +/- 1.5 10.6 +/- 0.8 1-2 MILES OFFSITE 8B2 11.8 +/- 2.5 13.3 +/- 1.1 15.3 +/- 0.1 11.2 +/- 0.6 9B1 15.4 +/- 1.9 17.1 +/- 0.3 22.1 +/- 0.1 16.6 +/- 0.9 10B3 13.1 +/- 0.6 12.6 +/- 0.4 15.2 +/- 0.1 11.4 +/- 0.9 2-4 MILES OFFSITE 1D5 14.2 +/- 1.1 13.5 +/- 0.6 18.0 +/- 0.6 13.0 +/- 0.1 8D3 14.4 +/- 2.9 14.7 +/- 0.6 17.8 +/- 0.1 13.8 +/- 0.8 9D4 15.8 +/- 1.6 14.6 +/- 0.5 17.1 +/- 0.1 14.6 +/- 1.0 10D1 13.0 +/- 0.6 14.3 +/- 0.5 17.0 +/- 0.5 12.8 +/- 1.2 12D2 15.4 +/- 0.3 16.8 +/- 0.1 20.4 +/- 1.1 14.5 +/- 0.3 14D1 12.0 +/- 0.7 14.6 +/- 0.3 17.1 +/- 1.6 12.0 +/- 0.1 4-5 MILES OFFSITE 3E1 13.1 +/- 1.7 12.0 +/- 0.3 13.6 +/- 1.2 11.4 +/- 0.4 4E2 14.8 +/- 2.1 16.6 +/- 0.7 19.2 +/- 1.7 14.1 +/- 0.6 5E2 13.0 +/- 0.4 13.9 +/- 0.1 17.3 +/- 1.0 13.4 +/- 2.0 6E1 14.7 +/- 1.1 17.7 +/- 2.6 19.7 +/- 0.3 15.1 +/- 0.1 7E1 15.0 +/- 0.4 16.5 +/- 1.8 19.7 +/- 2.3 13.7 +/- 0.9 11E1 9.6 +/- 0.6 10.1 +/- 0.6 12.3 +/- 1.3 10.2 +/- 1.4 12E1 11.5 +/- 0.3 13.4 +/- 0.7 14.6 +/- 2.6 11.7 +/- 0.9 13E4 13.5 +/- 0.6 17.5 +/- 0.5 22.1 +/- 0.2 15.8 +/- 1.6 See the comments at the end of this table.

C-8

TABLE C-4 ENVIRONMENTAL OPTICALLY STIMULATED LUMINESCENCE DOSIMETRY RESULTS SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results (1) are in mR/std. qtr (2) +/- 2 sigma (3)

First Quarter Second Quarter Third Quarter Fourth Quarter 1/12/2017 to 4/12/2017 4/12/2017 to 7/12/2017 7/12/2017 to 10/12/2017 10/12/2017 to 1/12/2018 LOCATION 5-10 MILES OFFSITE 2F1 13.3 +/- 0.1 13.8 +/- 0.8 14.4 +/- 0.5 12.5 +/- 0.5 15F1 13.6 +/- 0.1 16.8 +/- 1.7 20.3 +/- 0.4 15.4 +/- 0.8 16F1 14.8 +/- 0.4 17.5 +/- 1.2 20.1 +/- 1.9 15.9 +/- 0.2 10-20 MILES OFFSITE 3G4 14.5 +/- 0.4 16.2 +/- 0.6 17.9 +/- 0.2 13.7 +/- 1.8 4G1 14.6 +/- 1.0 16.8 +/- 0.6 20.0 +/- 2.3 14.7 +/- 1.4 7G1 13.9 +/- 1.0 15.6 +/- 0.8 17.5 +/- 2.6 11.6 +/- 0.8 12G1 13.8 +/- 2.8 12.8 +/- 1.5 14.9 +/- 0.6 11.1 +/- 0.3 12G4 12.1 +/- 0.9 13.4 +/- 0.1 16.9 +/- 0.4 11.5 +/- 1.3 See the comments at the end of this table.

LOCATION INDICATOR Average (5) 14.7 +/- 7.5 16.6 +/- 8.7 19.8 +/- 10.9 14.7 +/- 7.9 CONTROL Average (5) 13.8 +/- 2.0 15.0 +/- 3.5 17.4 +/- 3.7 12.5 +/- 3.2 COMMENTS (1) Individual monitor location results are normally the average of the elemental doses of four elements from the two dosimeters assigned to each monitoring location.

(2) A standard (std.) quarter (qtr.) is considered to be 91.25 days. Results obtained for monitoring periods of other durations are normalized by multiplying them by 91.25/x, where x is the actual duration in days of the period.

(3) Uncertainties for individual monitoring location results are two standard deviations of the elemental doses of four elements from the two dosimeters assigned to each monitoring location, representing the variability between the elemental doses of each of the four dosimeter elements.

(4) No measurement could be made at this location because the dosimeters were lost, stolen, or damaged. Refer to Section III, Program Description.

of the Annual Radiological Environmental Operating Report for an explanation of program exceptions to REMP.

(5) Uncertainties associated with quarterly indicator and control averages are two standard deviations, representing the variability between the results of the individual monitoring locations.

C-9

TABLE C-5 IODINE-131 AND GAMMA SPECTROSCOPIC ANALYSES OF MILK SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/Liter +/- 2 sigma COLLECTION SITE DATE I-131 K-40 Cs-134 Cs-137 Ba-140 La-140 Th-228 10G1 01/03/17

< 0.5 1411 +/- 164

< 9

< 10

< 37

< 9

< 18 02/06/17

< 0.4 1294 +/- 200

< 7

< 33

< 8

< 15 03/06/17

< 0.5 1353 +/- 159

< 7

< 25

< 7

< 14 04/03/17

< 0.3 1344 +/- 179

< 8

< 10

< 31

< 11

< 16 04/17/17

< 0.4 1235 +/- 184

< 9

< 10

< 30

< 9

< 17 05/01/17

< 0.5 1474 +/- 164

< 7

< 25

< 7

< 14 05/15/17

< 0.7 1250 +/- 160

< 5

< 8

< 24

< 7

< 15 05/30/17

< 0.5 1386 +/- 187

< 7

< 8

< 28

< 8

< 16 06/12/17

< 0.4 1360 +/- 173

< 7

< 8

< 26

< 7

< 13 06/26/17

< 0.5 1170 +/- 153

< 7

< 24

< 7

< 13 07/11/17

< 0.6 1390 +/- 174

< 10

< 9

< 47

< 14

< 18 07/24/17

< 0.9 1426 +/- 163

< 5

< 6

< 23

< 8

< 12 08/07/17

< 0.5 1391 +/- 222

< 8

< 11

< 35

< 10

< 17 08/21/17

< 0.6 1242 +/- 153

< 7

< 29

< 10

< 14 09/05/17

< 0.4 1225 +/- 151

< 10

< 50

< 12

< 19 09/18/17

< 0.3 1212 +/- 185

< 7

< 8

< 50

< 12

< 17 10/02/17

< 0.5 1672 +/- 155

< 5

< 31

< 10

< 11 10/16/17

< 1.0 1458 +/- 191

< 8

< 30

< 8

< 16 10/30/17

< 0.2 1556 +/- 201

< 9

< 10

< 40

< 11

< 18 11/13/17

< 0.4 1446 +/- 205

< 7

< 8

< 34

< 10

< 17 12/11/17

< 0.5 1388 +/- 182

< 6

< 9

< 23

< 10

< 16 AVERAGE 1366 +/- 244 13E3 01/04/17

< 0.6 1349 +/- 214

< 8

< 11

< 37

< 10

< 16 02/07/17

< 0.3 1453 +/- 172

< 7

< 9

< 26

< 9

< 13 03/06/17

< 0.4 1350 +/- 200

< 8

< 10

< 31

< 10

< 15 04/03/17

< 0.4 1595 +/- 221

< 13

< 15

< 56

< 13

< 23 04/17/17

< 0.6 1375 +/- 213

< 9

< 8

< 26

< 4

< 18 05/01/17

< 0.7 1329 +/- 215

< 8

< 9

< 26

< 7

< 17 05/15/17

< 0.7 1421 +/- 142

< 5

< 7

< 22

< 6

< 10 05/30/17

< 0.5 1250 +/- 182

< 7

< 9

< 26

< 7

< 15 06/12/17

< 0.4 1409 +/- 200

< 9

< 8

< 34

< 7

< 17 06/26/17

< 0.4 1317 +/- 167

< 11

< 37

< 10

< 20 07/11/17

< 0.5 1326 +/- 165

< 5

< 7

< 29

< 10

< 14 07/24/17

< 0.6 1508 +/- 185

< 12

< 39

< 11

< 19 08/07/17

< 0.5 1404 +/- 173

< 7

< 29

< 4

< 17 08/21/17

< 0.3 1245 +/- 186

< 8

< 9

< 32

< 9

< 16 09/05/17

< 0.4 1386 +/- 147

< 9

< 38

< 15

< 16 09/18/17

< 0.5 1279 +/- 163

< 7

< 8

< 40

< 10

< 12 10/02/17

< 0.4 1290 +/- 128

< 5

< 26

< 7

< 8 10/16/17

< 0.6 1138 +/- 157

< 5

< 6

< 25

< 5

< 11 10/30/17

< 0.3 1404 +/- 217

< 8

< 7

< 33

< 10

< 17 11/13/17

< 0.5 1236 +/- 171

< 6

< 27

< 8

< 14 12/11/17

< 1.0 1311 +/- 182

< 6

< 8

< 27

< 6

< 13 AVERAGE 1351 +/- 202

<----------GAMMA EMITTERS---------->

C-10

TABLE C-5 IODINE-131 AND GAMMA SPECTROSCOPIC ANALYSES OF MILK SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/Liter +/- 2 sigma COLLECTION SITE DATE I-131 K-40 Cs-134 Cs-137 Ba-140 La-140 Th-228

<----------GAMMA EMITTERS---------->

5E2 01/03/17

< 0.7 1250 +/- 146

< 6

< 23

< 5

< 11 02/06/17

< 0.3 1233 +/- 190

< 8

< 9

< 31

< 11

< 17 03/06/17

< 0.5 1383 +/- 165

< 6

< 24

< 7

< 12 04/03/17

< 0.5 1316 +/- 173

< 7

< 8

< 25

< 6

< 15 04/17/17

< 0.4 1330 +/- 205

< 7

< 8

< 30

< 7

< 15 05/01/17

< 0.5 1351 +/- 156

< 6

< 8

< 26

< 9

< 14 05/15/17

< 0.8 1291 +/- 165

< 6

< 7

< 26

< 8

< 14 05/30/17

< 0.5 1429 +/- 212

< 8

< 10

< 29

< 7

< 15 06/12/17

< 0.6 1246 +/- 163

< 8

< 9

< 29

< 11

< 17 06/26/17

< 0.5 1261 +/- 179

< 11

< 12

< 29

< 13

< 17 07/11/17

< 0.5 1274 +/- 201

< 8

< 44

< 15

< 14 07/24/17

< 0.9 1091 +/- 234

< 9

< 10

< 37

< 12

< 15 08/07/17

< 0.6 1180 +/- 202

< 9

< 10

< 32

< 9

< 17 08/21/17

< 0.4 1141 +/- 167

< 7

< 6

< 20

< 6

< 12 09/05/17

< 0.3 1454 +/- 189

< 6

< 7

< 34

< 8

< 13 09/18/17

< 0.4 1304 +/- 150

< 5

< 7

< 32

< 13

< 11 10/02/17

< 0.7 1453 +/- 136

< 5

< 6

< 23

< 5

< 11 10/16/17

< 0.6 1401 +/- 181

< 7

< 8

< 26

< 10

< 15 10/30/17

< 0.2 1291 +/- 193

< 8

< 7

< 29

< 8

< 14 11/13/17

< 0.6 1225 +/- 194

< 8

< 9

< 31

< 14

< 17 12/11/17

< 0.3 1266 +/- 177

< 7

< 10

< 31

< 11

< 13 AVERAGE 1294 +/- 193 C-11

TABLE C-6 TRITIUM AND GAMMA SPECTROSCOPIC ANALYSES OF GROUNDWATER Results in pCi/Liter +/- 2 sigma COLLECTION SITE DATE H-3 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 Th-228 12F3 02/02/17

< 148

< 80

< 9

< 7

< 19

< 7

< 13

< 10

< 13

< 12

< 7

< 31

< 13

< 16 05/22/17

< 139

< 111

< 6

< 5

< 17

< 7

< 13

< 7

< 11

< 8

< 6

< 7

< 26

< 8

< 13 07/31/17

< 141

< 146

< 7

< 5

< 16

< 6

< 12

< 8

< 14

< 7

< 6

< 23

< 8

< 13 10/26/17

< 131

< 52

< 6

< 15

< 6

< 13

< 8

< 10

< 8

< 6

< 7

< 25

< 9

< 11 AVERAGE 2S2 02/02/17

< 146

< 147

< 8

< 9

< 21

< 8

< 13

< 10

< 14

< 13

< 8

< 9

< 29

< 12

< 15 05/22/17

< 134

< 41

< 6

< 5

< 11

< 5

< 12

< 6

< 9

< 7

< 5

< 6

< 19

< 8

< 9 07/31/17

< 141

< 64

< 7

< 18

< 9

< 15

< 8

< 11

< 5

< 7

< 29

< 10

< 14 10/26/17

< 131

< 103

< 5

< 7

< 16

< 6

< 13

< 6

< 12

< 9

< 5

< 7

< 24

< 9

< 12 AVERAGE 2S8 02/17/17

< 133

< 138

< 5

< 8

< 17

< 8

< 16

< 7

< 12

< 14

< 6

< 7

< 40

< 12

< 14 05/22/17

< 145

< 112

< 6

< 19

< 6

< 15

< 8

< 13

< 15

< 6

< 8

< 31

< 12

< 11 08/05/17

< 141

< 126

< 8

< 9

< 20

< 8

< 17

< 11

< 15

< 13

< 8

< 9

< 33

< 12

< 20 11/03/17

< 137

< 128

< 7

< 24

< 10

< 17

< 9

< 14

< 13

< 8

< 9

< 38

< 15

< 16 AVERAGE 4S4 02/02/17

< 146

< 139

< 6

< 19

< 4

< 14

< 8

< 12

< 10

< 7

< 31

< 12

< 15 05/22/17

< 136

< 82

< 5

< 11

< 5

< 7

< 5

< 8

< 6

< 4

< 20

< 6

< 9 07/31/17

< 139

< 131

< 8

< 9

< 19

< 8

< 18

< 8

< 17

< 11

< 9

< 35

< 9

< 20 10/26/17

< 130

< 107

< 5

< 6

< 16

< 6

< 12

< 5

< 9

< 7

< 6

< 5

< 21

< 7

< 10 AVERAGE 6S10 02/02/17

< 146

< 176

< 9

< 12

< 28

< 11

< 24

< 13

< 20

< 14

< 9

< 11

< 40

< 14

< 19 05/22/17

< 138

< 41

< 4

< 5

< 14

< 5

< 10

< 6

< 9

< 6

< 5

< 20

< 7

< 10 07/31/17

< 143

< 123

< 9

< 7

< 19

< 9

< 18

< 7

< 12

< 10

< 9

< 8

< 30

< 12

< 17 10/26/17

< 129

< 67

< 6

< 5

< 15

< 7

< 14

< 8

< 10

< 9

< 7

< 6

< 24

< 10

< 12 AVERAGE

<----------GAMMA EMITTERS---------->

SUSQUEHANNA STEAM ELECTRIC STATION, 2017 K-40 C-12

TABLE C-6 TRITIUM AND GAMMA SPECTROSCOPIC ANALYSES OF GROUNDWATER Results in pCi/Liter +/- 2 sigma COLLECTION SITE DATE H-3 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 Th-228

<----------GAMMA EMITTERS---------->

SUSQUEHANNA STEAM ELECTRIC STATION, 2017 K-40 11S2 02/02/17

< 146

< 67

< 8

< 6

< 19

< 9

< 20

< 9

< 11

< 7

< 8

< 31

< 6

< 16 05/22/17

< 137

< 138

< 8

< 7

< 18

< 7

< 16

< 7

< 15

< 8

< 7

< 29

< 11

< 11 07/31/17

< 141

< 125

< 8

< 7

< 14

< 10

< 14

< 5

< 10

< 7

< 6

< 25

< 8

< 14 10/26/17

< 130

< 158

< 7

< 6

< 14

< 7

< 11

< 7

< 14

< 10

< 7

< 6

< 29

< 10

< 15 AVERAGE 13S7 01/26/17

< 127

< 126

< 6

< 4

< 24

< 7

< 14

< 8

< 13

< 14

< 7

< 6

< 38

< 11

< 14 05/09/17

< 142

< 62

< 6

< 18

< 7

< 15

< 7

< 12

< 11

< 6

< 7

< 29

< 10

< 14 08/01/17

< 140 79 +/- 46

< 5

< 14

< 5

< 11

< 6

< 9

< 10

< 5

< 6

< 27

< 8

< 11 11/04/17

< 134

< 51

< 7

< 19

< 8

< 15

< 8

< 13

< 7

< 29

< 11

< 16 AVERAGE 79 +/- 0 1S3 01/27/17 209 +/- 99

< 94

< 5

< 17

< 4

< 14

< 6

< 9

< 10

< 5

< 28

< 9

< 13 05/09/17

< 144

< 76

< 5

< 16

< 6

< 13

< 6

< 10

< 7

< 6

< 21

< 9

< 13 08/01/17 164 +/- 91

< 77

< 7

< 8

< 17

< 8

< 18

< 7

< 14

< 8

< 37

< 10

< 15 11/04/17

< 133

< 80

< 8

< 9

< 22

< 10

< 18

< 9

< 19

< 12

< 11

< 9

< 42

< 9

< 15 AVERAGE 187 +/- 64 4S8 01/26/17

< 149

< 63

< 7

< 6

< 21

< 6

< 16

< 7

< 12

< 14

< 6

< 7

< 28

< 10

< 11 05/09/17 202 +/- 95

< 188

< 10

< 26

< 11

< 22

< 14

< 15

< 14

< 9

< 10

< 38

< 14

< 19 08/01/17

< 141

< 166

< 6

< 8

< 19

< 7

< 13

< 6

< 14

< 12

< 6

< 8

< 33

< 13

< 14 11/04/17 140 +/- 87

< 80

< 8

< 17

< 6

< 14

< 10

< 12

< 6

< 9

< 35

< 11

< 17 AVERAGE 171 +/- 88 4S9 02/14/17

< 148 155 +/- 94

< 9

< 8

< 24

< 8

< 19

< 8

< 14

< 13

< 6

< 7

< 31

< 12

< 15 04/24/17

< 144

< 62

< 6

< 7

< 18

< 7

< 16

< 8

< 12

< 15

< 7

< 9

< 39

< 11

< 15 07/24/17

< 139

< 55

< 8

< 16

< 5

< 15

< 6

< 15

< 14

< 8

< 7

< 39

< 14

< 17 11/13/17

< 145

< 62

< 6

< 20

< 7

< 12

< 7

< 12

< 14

< 6

< 7

< 30

< 11

< 15 AVERAGE 155 +/- 0 C-13

TABLE C-6 TRITIUM AND GAMMA SPECTROSCOPIC ANALYSES OF GROUNDWATER Results in pCi/Liter +/- 2 sigma COLLECTION SITE DATE H-3 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 Th-228

<----------GAMMA EMITTERS---------->

SUSQUEHANNA STEAM ELECTRIC STATION, 2017 K-40 6S11A 02/23/17

< 134

< 169

< 8

< 6

< 29

< 8

< 19

< 8

< 15

< 11

< 9

< 8

< 32

< 12

< 16 05/25/17

< 145

< 195

< 8

< 24

< 9

< 16

< 9

< 14

< 15

< 7

< 8

< 42

< 10

< 14 08/03/17

< 137

< 80

< 8

< 20

< 8

< 19

< 9

< 15

< 13

< 9

< 8

< 37

< 10

< 17 11/17/17

< 149

< 88

< 8

< 11

< 27

< 12

< 23

< 9

< 18

< 15

< 9

< 11

< 41

< 14

< 21 AVERAGE 6S12 02/21/17

< 132

< 128

< 7

< 19

< 8

< 14

< 9

< 11

< 12

< 8

< 7

< 33

< 13

< 12 05/04/17

< 140

< 48

< 5

< 15

< 6

< 12

< 6

< 10

< 15

< 6

< 7

< 33

< 8

< 12 07/27/17

< 139

< 81

< 9

< 10

< 22

< 12

< 19

< 10

< 14

< 12

< 8

< 11

< 33

< 11

< 17 11/17/17

< 148

< 97

< 8

< 6

< 19

< 7

< 11

< 8

< 11

< 7

< 8

< 29

< 9

< 15 AVERAGE 7S10 02/08/17

< 149

< 48

< 4

< 5

< 13

< 5

< 11

< 6

< 10

< 15

< 5

< 6

< 34

< 9

< 9 05/03/17

< 144

< 50

< 5

< 6

< 14

< 5

< 11

< 6

< 8

< 12

< 5

< 34

< 10

< 10 07/25/17

< 138

< 74

< 7

< 8

< 17

< 8

< 14

< 6

< 12

< 10

< 7

< 31

< 15

< 14 10/30/17

< 134

< 41

< 6

< 7

< 19

< 7

< 12

< 6

< 12

< 14

< 6

< 7

< 32

< 9

< 12 AVERAGE 7S11 02/08/17

< 147

< 38

< 4

< 14

< 3

< 8

< 4

< 8

< 13

< 4

< 29

< 7

< 9 05/03/17

< 140

< 57

< 5

< 17

< 5

< 10

< 5

< 9

< 15

< 5

< 7

< 31

< 7

< 10 07/25/17

< 141

< 135

< 9

< 8

< 23

< 8

< 20

< 9

< 16

< 15

< 9

< 40

< 12

< 17 10/30/17

< 130

< 84

< 4

< 5

< 13

< 5

< 10

< 6

< 12

< 4

< 6

< 27

< 11

< 10 AVERAGE 8S4 01/27/17

< 148

< 71

< 7

< 19

< 4

< 15

< 8

< 12

< 13

< 7

< 31

< 13

< 16 05/08/17

< 148

< 50

< 4

< 6

< 16

< 8

< 12

< 6

< 13

< 8

< 6

< 26

< 5

< 11 08/02/17

< 146

< 77

< 7

< 18

< 6

< 13

< 8

< 10

< 13

< 6

< 8

< 30

< 12

< 15 11/04/17

< 137

< 123

< 6

< 15

< 6

< 12

< 7

< 8

< 10

< 5

< 31

< 7

< 13 AVERAGE C-14

TABLE C-7 ANNUAL AVERAGE TRITIUM CONCENTRATION IN PRECIPITATION, MONITORING WELLS AND LAKE TOOK-A-WHILE (LTAW) SURFACE WATER DATA SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/Liter +/- 2 sigma SITE 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Precip Sites 3S2, 12S1, 8G1 (offsite, controls) 62*

49 40 38 82 63 51 39 45 32 Precip Sites 1 and 2 (onsite, East of Station Reactor Bldgs) 370 230*

193 216 242 182 142 250 206 251 Precipitation Sites 3 and 4 (onsite, West of Station Reactor Bldgs) 414 404*

350 233 169 151 231 258 197 383 1S3 - MW-1 (43')

248 150 252 131 164 197 115 169 175 130 4S8 - MW-2 (45')

292 154 190 173 137 202 187 138 154 138 4S9 - MW-3 (94')

127 54 150 64 80 135 94 180 125 55 8S4 - MW-4 (111')

172 66 105 68 81 109 60 162 145 91 7S10 - MW-5 (36')

171 69 96

-6 74 106 68 70 73 51 13S7 - MW-6 (16')

142 134 143 34 80 111 71 79 111 107 2S8 - MW-7 (85')

Not installed Not installed Not installed 22 54 72 70 70 74 56 6S11A - MW-8A (14')

177 82 165 58 15 72 103 110 63 38 6S11B - MW-8B (19')

Dry well Dry well Dry well Dry well Dry well Dry well Dry well Dry well Dry well Dry well 6S12 - MW-9 (28')

30

-44 45 18 6

60 21 57 70 5

7S11 - MW-10 (132')

3

-27

-9 1

-1 23 29 55 13 1

12F3 - Groundwater Control 26

-53

-2 5

-6 45

-26 20 41 61 LTAW-Surface Water 179 104 110 132 132 145 27 73 89 77

Revised values to reflect full scope of precipitation data.

C-15

TABLE C-8 GROSS BETA, TRITIUM AND GAMMA SPECTROSCOPIC ANALYSES OF DRINKING WATER SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/Liter +/- 2 sigma COLLECTION PERIOD

<----------GAMMA EMITTERS---------->

SITE START STOP Gr-B H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 12H2 12/27/16 - 01/23/17

< 1.7

< 147

< 22

< 1

< 2

< 4

< 1

< 3

< 2

< 3

< 6

< 1

< 12

< 4 12H2 01/23/17 - 02/27/17

< 1.8

< 140

< 36

< 2

< 8

< 2

< 4

< 3

< 4

< 12

< 2

< 21

< 7 12H2 02/27/17 - 03/28/17 2.0 +/- 1.3

< 148

< 17

< 2

< 6

< 2

< 4

< 2

< 4

< 12

< 2

< 21

< 6 12H2 03/28/17 - 04/25/17 2.0 +/- 1.2

< 146

< 15

< 2

< 6

< 2

< 4

< 2

< 3

< 11

< 2

< 20

< 6 12H2 04/25/17 - 05/30/17

< 1.7

< 145

< 8

< 1

< 3

< 1

< 2

< 1

< 2

< 15

< 1

< 18

< 6 12H2 05/30/17 - 06/27/17 2.4 +/- 1.3

< 141

< 22

< 1

< 5

< 1

< 2

< 3

< 14

< 1

< 19

< 6 12H2 06/27/17 - 07/25/17

< 2.1

< 142

< 32

< 2

< 5

< 2

< 3

< 2

< 3

< 10

< 2

< 17

< 6 12H2 07/25/17 - 08/29/17 2.9 +/- 1.4

< 134

< 39

< 2

< 6

< 2

< 3

< 2

< 3

< 13

< 1

< 2

< 21

< 6 12H2 08/29/17 - 09/26/17 3.7 +/- 1.5

< 124

< 24

< 1

< 2

< 5

< 1

< 3

< 2

< 3

< 14

< 1

< 20

< 6 12H2 09/26/17 - 10/24/17

< 2.3

< 136

< 36

< 2

< 3

< 10

< 3

< 6

< 3

< 5

< 12

< 3

< 23

< 8 12H2 10/24/17 - 11/28/17

< 1.8

< 148

< 41

< 2

< 7

< 2

< 4

< 2

< 4

< 13

< 2

< 24

< 7 12H2 11/28/17 - 12/26/17 2.9 +/- 1.4

< 146

< 37

< 2

< 7

< 2

< 4

< 2

< 4

< 14

< 2

< 25

< 8 AVERAGE 2.7 +/- 1.3 C-16

TABLE C-9 GAMMA SPECTROSCOPIC ANALYSES OF FOOD PRODUCTS (FRUITS AND VEGETABLES)

SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/kg (wet) +/- 2 sigma COLLECTION SITE DATE Be-7 K-40 I-131 Cs-134 Cs-137 Ac-228 Th-228 8G1 07/13/17

< 327 3028 +/- 580

< 38

< 29

< 37

< 125

< 62 07/13/17

< 317 4092 +/- 814

< 44

< 29

< 33

< 165

< 64 07/13/17

< 298 2744 +/- 591

< 44

< 36

< 32

< 119

< 47 08/22/17

< 336 5125 +/- 474

< 44

< 35

< 30

< 108

< 53 08/22/17

< 311 5020 +/- 684

< 56

< 33

< 41

< 155

< 60 08/22/17

< 391 4228 +/- 767

< 54

< 33

< 147

< 69 09/11/17 532 +/- 130 6068 +/- 383

< 23

< 13

< 15

< 48

< 25 09/11/17 504 +/- 173 6302 +/- 511

< 40

< 21

< 23

< 91

< 40 09/11/17 361 +/- 151 3391 +/- 354

< 27

< 16

< 18

< 63

< 25 10/17/17 510 +/- 252 5042 +/- 672

< 49

< 24

< 125

< 47 10/17/17 336 +/- 218 6308 +/- 679

< 46

< 26

< 27

< 118

< 51 10/17/17 963 +/- 237 3484 +/- 538

< 37

< 25

< 26

< 100

< 49 11/14/17 553 +/- 291 6064 +/- 798

< 40

< 25

< 29

< 131

< 61 11/14/17

< 291 3544 +/- 698

< 38

< 29

< 34

< 130

< 65 AVERAGE 537 +/- 412 4603 +/- 2536 11D1 11/10/17

< 215 2658 +/- 514

< 46

< 25

< 28

< 106

< 52 11/30/17

< 165 3448 +/- 591

< 35

< 27

< 113

< 44 11/30/17

< 256 13540 +/- 1183

< 43

< 35

< 34

< 165

< 51 AVERAGE 6549 +/- 12135 11S6 07/13/17

< 190 3445 +/- 463

< 27

< 18

< 19

< 89

< 32 07/13/17

< 282 4176 +/- 662

< 51

< 31

< 38

< 149

< 60 07/13/17

< 316 3404 +/- 511

< 45

< 38

< 33

< 135

< 63 08/22/17 462 +/- 288 2947 +/- 625

< 47

< 27

< 28

< 122

< 58 08/22/17 555 +/- 254 3896 +/- 515

< 47

< 26

< 31

< 107

< 49 08/22/17 1204 +/- 333 4160 +/- 514

< 51

< 35

< 31

< 132

< 58 09/11/17 587 +/- 210 4294 +/- 560

< 43

< 26

< 24

< 111

< 46 09/11/17 1215 +/- 276 7971 +/- 769

< 56

< 26

< 33

< 133

< 53 09/11/17 1131 +/- 163 5099 +/- 333

< 37

< 22

< 80

< 38 10/17/17 387 +/- 200 4241 +/- 506

< 31

< 19

< 21

< 80

< 38 10/17/17 415 +/- 225 6077 +/- 530

< 32

< 19

< 75

< 39 10/17/17 714 +/- 272 5364 +/- 526

< 52

< 35

< 36

< 138

< 63 11/14/17 570 +/- 318 6219 +/- 769

< 41

< 39

< 138

< 71 11/14/17

< 233 4896 +/- 729

< 35

< 24

< 17

< 94

< 40 AVERAGE 724 +/- 662 4728 +/- 2686 C-17

TABLE C-9 GAMMA SPECTROSCOPIC ANALYSES OF FOOD PRODUCTS (FRUITS AND VEGETABLES)

SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/kg (wet) +/- 2 sigma COLLECTION SITE DATE Be-7 K-40 I-131 Cs-134 Cs-137 Ac-228 Th-228 12F7 10/9/2017

< 221 5874 +/- 848

< 38

< 32

< 31

< 124

< 64 AVERAGE 5874 +/- 0 3S3 7/13/2017

< 342 3583 +/- 539

< 49

< 34

< 37

< 143

< 55 7/13/2017

< 263 4559 +/- 619

< 38

< 28

< 32

< 125

< 59 7/13/2017

< 261 3441 +/- 685

< 40

< 22

< 25

< 131

< 52 8/22/2017

< 378 3460 +/- 623

< 49

< 33

< 29

< 146

< 49 8/22/2017

< 320 5530 +/- 675

< 51

< 34

< 36

< 112

< 62 8/22/2017 532 +/- 235 3786 +/- 640

< 45

< 31

< 28

< 124

< 55 9/11/2017

< 260 3547 +/- 593

< 47

< 25

< 28

< 124

< 52 9/11/2017 763 +/- 284 7309 +/- 677

< 45

< 30

< 28

< 95

< 46 9/11/2017 567 +/- 237 4502 +/- 636

< 51

< 32

< 28

< 119

< 56 10/17/2017

< 294 3672 +/- 582

< 46

< 26

< 33

< 100

< 43 10/17/2017 522 +/- 312 7048 +/- 781

< 42

< 24

< 32

< 110

< 50 10/17/2017 828 +/- 233 6133 +/- 705

< 34

< 21

< 24

< 99

< 44 11/14/2017 696 +/- 377 6737 +/- 893

< 42

< 33

< 35

< 119

< 61 11/14/2017 797 +/- 399 5519 +/- 861

< 49

< 40

< 45

< 145

< 78 AVERAGE 672 +/- 261 4916 +/- 2876 C-18

TABLE C-10 GAMMA SPECTROSCOPIC ANALYSES OF SOIL SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/kg (dry) +/- 2 sigma COLLECTION SITE DATE K-40 Cs-134 Cs-137 Ra-226 Ac-228 Th-228 8G1 09/13/17 8166 +/- 2056

< 104

< 178

< 2319 1174 +/- 520 1117 +/- 202 09/13/17 9559 +/- 1488

< 58 122 +/- 80 2221 +/- 1226 890 +/- 270 722 +/- 105 AVERAGE 8863 +/- 1970 122 +/- 0 2221 +/- 0 1032 +/- 402 919 +/- 559 12S1 09/13/17 10550 +/- 1385

< 54 129 +/- 64

< 1322 919 +/- 258 938 +/- 120 09/13/17 13320 +/- 1772

< 81 111 4272 +/- 1732 897 +/- 305 957 +/- 151 AVERAGE 11935 +/- 3917 129 +/- 0 4272 +/- 0 908 +/- 30 948 +/- 27 10S3 09/13/17 9623 +/- 1909

< 106 152 2724 +/- 1628

< 346 682 +/- 141 09/13/17 11850 +/- 1808

< 64 109

< 1935 840 +/- 366 1064 +/- 130 AVERAGE 10737 +/- 3149 2724 +/- 0 840 +/- 0 873 +/- 540 C-19

TABLE C-11 TRITIUM AND GAMMA SPECTROSCOPIC ANALYSES OF SURFACE WATER SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/Liter +/- 2 sigma COLLECTION SITE PERIOD H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 Th-228 6S6 12/27/16 - 01/24/17

< 150

< 31

< 2

< 6

< 2

< 4

< 2

< 4

< 7

< 2

< 14

< 5

< 3 01/24/17 - 02/28/17

< 142

< 46

< 2

< 7

< 2

< 4

< 3

< 4

< 12

< 2

< 21

< 7

< 5 02/28/17 - 03/28/17

< 148

< 32

< 2

< 7

< 2

< 4

< 2

< 4

< 11

< 2

< 20

< 7

< 4 03/28/17 - 04/25/17

< 147

< 22

< 1

< 2

< 5

< 1

< 3

< 2

< 3

< 9

< 1

< 16

< 5

< 3 04/25/17 - 05/30/17

< 148

< 18

< 2

< 7

< 2

< 4

< 2

< 4

< 15

< 2

< 24

< 8

< 3 05/23/17 - 05/23/17

< 145

< 39

< 4

< 5

< 16

< 4

< 10

< 5

< 8

< 15

< 4

< 5

< 31

< 11

< 9 05/30/17 - 06/27/17

< 140

< 38

< 2

< 5

< 2

< 3

< 2

< 3

< 12

< 2

< 21

< 6

< 3 06/27/17 - 07/25/17

< 143

< 15

< 2

< 6

< 2

< 3

< 2

< 4

< 10

< 2

< 18

< 5

< 3 07/25/17 - 08/29/17

< 139

< 32

< 2

< 6

< 2

< 3

< 2

< 3

< 14

< 2

< 22

< 7

< 3 08/29/17 - 09/26/17

< 128

< 23

< 1

< 5

< 1

< 3

< 2

< 3

< 11

< 1

< 16

< 6 4 +/- 2 09/19/17 - 09/19/17

< 128

< 33

< 2

< 7

< 2

< 4

< 2

< 3

< 8

< 2

< 16

< 6

< 3 09/26/17 - 10/24/17

< 140

< 27

< 3

< 8

< 2

< 5

< 3

< 5

< 11

< 3

< 21

< 7

< 5 10/24/17 - 11/28/17

< 139

< 40

< 2

< 7

< 2

< 4

< 3

< 4

< 12

< 2

< 21

< 7

< 4 11/28/17 - 12/26/17

< 147

< 34

< 2

< 7

< 2

< 5

< 2

< 4

< 13

< 2

< 20

< 8

< 4 AVERAGE 4 +/- 0 5S9 06/06/17 - 06/06/17

< 141

< 17

< 1

< 4

< 1

< 2

< 1

< 2

< 14

< 1

< 18

< 5

< 2 AVERAGE 2S7 12/27/16 - 01/24/17

< 147

< 32

< 2

< 5

< 2

< 3

< 2

< 3

< 7

< 2

< 14

< 4

< 3 01/24/17 - 02/28/17 393 +/- 104

< 56

< 2

< 3

< 8

< 2

< 5

< 3

< 5

< 12

< 2

< 3

< 23

< 7

< 5 02/28/17 - 03/28/17 957 +/- 133

< 38

< 2

< 6

< 2

< 4

< 2

< 4

< 12

< 2

< 21

< 7

< 4 03/28/17 - 04/25/17 511 +/- 114

< 33

< 2

< 6

< 2

< 3

< 2

< 3

< 11

< 2

< 19

< 6

< 3 04/25/17 - 05/30/17 400 +/- 113

< 18

< 2

< 7

< 2

< 4

< 2

< 4

< 15

< 2

< 23

< 7

< 4 05/23/17 - 05/23/17

< 146

< 40

< 4

< 10

< 3

< 7

< 4

< 7

< 13

< 4

< 3

< 24

< 9

< 7 05/30/17 - 06/27/17

< 145

< 18

< 2

< 7

< 2

< 4

< 2

< 4

< 15

< 2

< 23

< 8

< 3 06/27/17 - 07/25/17 2070 +/- 216

< 21

< 2

< 7

< 2

< 4

< 2

< 4

< 13

< 2

< 23

< 8

< 4 07/25/17 - 08/29/17 771 +/- 118

< 14

< 1

< 2

< 5

< 1

< 3

< 2

< 3

< 11

< 1

< 17

< 6

< 2 08/29/17 - 09/26/17 354 +/- 94

< 16

< 2

< 6

< 2

< 3

< 2

< 4

< 13

< 2

< 21

< 7

< 3 09/26/17 - 10/24/17

< 149

< 59

< 3

< 10

< 3

< 6

< 4

< 6

< 12

< 3

< 26

< 9

< 6 10/24/17 - 11/28/17 291 +/- 108

< 47

< 2

< 7

< 2

< 4

< 3

< 4

< 12

< 2

< 21

< 7

< 4 11/28/17 - 12/26/17 207 +/- 99

< 20

< 2

< 8

< 2

< 4

< 3

< 4

< 15

< 2

< 24

< 7

< 4 AVERAGE 662 +/- 1159 6S5 01/03/17 - 01/24/17

< 128

< 30

< 2

< 5

< 2

< 3

< 2

< 3

< 6

< 2

< 12

< 4

< 3 01/30/17 - 02/28/17

< 141

< 51

< 3

< 8

< 2

< 6

< 3

< 5

< 12

< 3

< 22

< 6

< 6 03/07/17 - 03/28/17

< 150

< 22

< 2

< 3

< 8

< 2

< 5

< 3

< 5

< 10

< 2

< 19

< 8

< 4 04/04/17 - 04/25/17

< 150

< 19

< 2

< 6

< 2

< 4

< 2

< 4

< 10

< 2

< 18

< 6

< 3 05/02/17 - 05/30/17

< 147

< 37

< 2

< 3

< 7

< 2

< 5

< 3

< 5

< 15

< 3

< 2

< 24

< 6

< 5

<----------GAMMA EMITTERS---------->

C-20

TABLE C-11 TRITIUM AND GAMMA SPECTROSCOPIC ANALYSES OF SURFACE WATER SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/Liter +/- 2 sigma COLLECTION SITE PERIOD H-3 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 I-131 Cs-134 Cs-137 Ba-140 La-140 Th-228

<----------GAMMA EMITTERS---------->

6S5 06/06/17 - 06/27/17

< 140

< 18

< 2

< 7

< 2

< 5

< 3

< 5

< 14

< 2

< 24

< 7

< 5 (cont'd) 07/03/17 - 07/25/17

< 146

< 22

< 2

< 3

< 8

< 3

< 5

< 3

< 5

< 10

< 2

< 21

< 7

< 4 08/01/17 - 08/29/17

< 136

< 19

< 2

< 7

< 2

< 4

< 3

< 4

< 13

< 2

< 22

< 7

< 4 09/05/17 - 09/26/17

< 126

< 17

< 2

< 6

< 2

< 3

< 2

< 4

< 10

< 2

< 18

< 6

< 4 10/03/17 - 10/24/17

< 136

< 31

< 3

< 4

< 10

< 3

< 7

< 4

< 6

< 10

< 4

< 3

< 23

< 8

< 6 10/31/17 - 11/28/17

< 136

< 39

< 2

< 3

< 8

< 3

< 5

< 3

< 5

< 12

< 2

< 20

< 6

< 5 12/05/17 - 12/26/17

< 148

< 41

< 2

< 8

< 2

< 5

< 3

< 4

< 11

< 2

< 20

< 7

< 4 AVERAGE 4S7 02/06/17 - 02/06/17

< 145

< 154

< 6

< 20

< 7

< 12

< 7

< 11

< 9

< 7

< 6

< 26

< 8

< 9 04/27/17 - 04/27/17

< 147

< 116

< 6

< 15

< 8

< 15

< 7

< 10

< 7

< 8

< 30

< 15

< 12 07/27/17 - 07/27/17

< 142

< 173

< 8

< 10

< 22

< 9

< 12

< 9

< 18

< 14

< 8

< 11

< 43

< 10

< 15 10/26/17 - 10/26/17 246 +/- 90

< 87

< 4

< 3

< 10

< 4

< 8

< 3

< 6

< 5

< 4

< 18

< 5

< 7 AVERAGE 246 +/- 0 LTAW 02/06/17 - 02/06/17

< 145

< 116

< 5

< 13

< 5

< 9

< 4

< 8

< 6

< 5

< 18

< 4

< 10 04/27/17 - 04/27/17

< 145

< 134

< 6

< 15

< 6

< 10

< 6

< 13

< 9

< 6

< 26

< 8

< 10 07/27/17 - 07/27/17

< 142

< 137

< 9

< 7

< 5

< 16

< 8

< 15

< 13

< 8

< 9

< 30

< 11

< 14 10/26/17 - 10/26/17

< 132

< 104

< 4

< 5

< 11

< 5

< 10

< 5

< 9

< 8

< 4

< 5

< 24

< 6

< 11 AVERAGE 5S12 02/06/17 - 02/06/17

< 147

< 84

< 5

< 19

< 7

< 12

< 6

< 9

< 7

< 6

< 21

< 7

< 10 04/27/17 - 04/27/17

< 149

< 62

< 7

< 6

< 20

< 9

< 16

< 8

< 11

< 13

< 8

< 7

< 34

< 14

< 16 07/27/17 - 07/27/17

< 141

< 65

< 7

< 8

< 21

< 8

< 17

< 7

< 15

< 14

< 9

< 39

< 11

< 16 10/26/17 - 10/26/17

< 133

< 37

< 4

< 10

< 5

< 11

< 4

< 8

< 7

< 4

< 5

< 23

< 7

< 8 AVERAGE 7S12 02/06/17 - 02/06/17

< 146

< 101

< 5

< 15

< 6

< 12

< 5

< 10

< 7

< 4

< 6

< 24

< 9

< 11 04/27/17 - 04/27/17

< 149

< 83

< 9

< 22

< 8

< 18

< 10

< 15

< 14

< 7

< 40

< 11

< 14 07/27/17 - 07/27/17

< 142

< 133

< 5

< 15

< 6

< 11

< 6

< 10

< 5

< 23

< 9

< 10 10/26/17 - 10/26/17

< 134

< 49

< 4

< 12

< 5

< 9

< 5

< 8

< 7

< 5

< 21

< 6

< 8 AVERAGE C-21

TABLE C-12 GAMMA SPECTROSCOPIC ANALYSIS OF FISH SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/kg (wet) +/- 2 sigma COLLECTION SITE DATE K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 2H Small Mouth Bass 05/24/17 3261 +/- 913

< 53

< 52

< 152

< 40

< 93

< 50

< 65 Channel Catfish 05/24/17 2649 +/- 657

< 41

< 43

< 101

< 46

< 95

< 40

< 46 Shorthead Redhorse 05/24/17 4164 +/- 1114

< 77

< 66

< 218

< 79

< 165

< 66

< 70 Small Mouth Bass 10/20/17 4298 +/- 1070

< 57

< 34

< 81

< 55

< 118

< 39

< 53 Walleye 10/20/17 3792 +/- 1300

< 90

< 87

< 222

< 79

< 156

< 77

< 79 Quillback 10/20/17 3848 +/- 1226

< 54

< 57

< 184

< 80

< 111

< 70

< 61 AVERAGE 3669 +/- 1231 IND Shorthead Redhorse 05/23/17 3590 +/- 767

< 38

< 27

< 119

< 35

< 81

< 46

< 46 Channel Catfish 05/23/17 3207 +/- 1049

< 75

< 80

< 191

< 73

< 163

< 66

< 86 Small Mouth Bass 05/23/17 4041 +/- 906

< 48

< 159

< 41

< 84

< 49

< 50 Quillback 10/19/17 5499 +/- 1226

< 35

< 62

< 200

< 73

< 147

< 53

< 65 Small Mouth Bass 10/19/17 4359 +/- 920

< 42

< 50

< 121

< 30

< 119

< 49

< 52 Walleye 10/19/17 4772 +/- 1036

< 53

< 71

< 186

< 56

< 129

< 62

< 54 AVERAGE 4245 +/- 1652 LTAW Small Mouth Bass 10/21/17 3701 +/- 857

< 48

< 38

< 131

< 47

< 93

< 50

< 42 Rainbow Trout 10/21/17 3330 +/- 895

< 51

< 49

< 176

< 48

< 101

< 60

< 65 AVERAGE 3516 +/- 525 C-22

TABLE C-13 GAMMA SPECTROSCOPIC ANALYSES OF SHORELINE SEDIMENT SUSQUEHANNA STEAM ELECTRIC STATION, 2017 Results in pCi/kg (dry) +/- 2 sigma COLLECTION SITE DATE K-40 Cs-134 Cs-137 Ac-228 Th-228 2B 05/01/17 11480 +/- 1668

< 76 114 +/- 58 < 1702 984 +/- 306 883 +/- 172 10/19/17 19550 +/- 2302

< 87

< 100

< 1785 1004 +/- 384 1196 +/- 143 AVERAGE 15515 +/- 11413 114 +/- 0 994 +/- 29 1040 +/- 442 7B 05/01/17 9435 +/- 1215

< 47

< 67 1887 +/- 1114 911 +/- 243 821 +/- 91.4 10/19/17 9681 +/- 1544

< 93

< 111

< 2063 902 +/- 349 815 +/- 224 AVERAGE 9558 +/- 348 1887 +/- 0 906 +/- 14 818 +/- 9 12F 05/01/17 7204 +/- 1209

< 61

< 74

< 1488 803 +/- 290 587 +/- 130 10/19/17 10320 +/- 1108

< 111

< 81

< 1869 468 +/- 290 901 +/- 142 AVERAGE 8762 +/- 4407 635 +/- 474 744 +/- 444 Ra-226 C-23

0 50 100 150 200 250 300 350 400 450 500 FIGURE C GROSS BETA ACTIVITY IN AIR PARTICULATES Indicator Control PREOPERATIONAL OPERATIONAL A

E B

C D

F Unit 2 Criticality 05/08/1984 CHERNOBYL 4/26/86 CHINESE WEAPONS TEST A - 06/17/74 B - 09/26/76 C - 11/17/76 D - 09/17/77 E - 03/14/78 F - 10/15/80 Unit 1 Criticality 09/10/1982 E-3 pCi/m3 C-24

0 5

10 15 20 25 30 35 40 45 50 1973 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 Dose Rate (mrem/STD Qtr)

FIGURE C AMBIENT RADIATION LEVELS BASED ON ENVIRONMENTAL DOSIMETRY DATA Indicator Control PREOPERATIONAL OPERATIONAL Unit 2 Criticality 05/08/1984 Unit 1 Criticality 09/10/1982 Changed from TLD to OSLD system 01/18/12 C-25

0 10 20 30 40 50 60 70 80 90 100 pCi/L FIGURE C IODINE-131 ACTIVITY IN MILK Indicator Control PRE-OPERATIONAL OPERATIONAL A

B C

CHERNOBYL 4/26/86 Unit 2 Criticality 05/08/1984 CHINESE WEAPONS TEST A - 09/12/77 B - 03/14/78 C - 10/15/80 Unit 1 Criticality 09/10/1982 C-26

FIGURE C ANNUAL AVERAGE TRITIUM ACTIVITY IN PRECIPITATION AND SURFACE WATER VERSUS GROUND WATER

-100 0

100 200 300 400 500 600 700 800 900 1000 1100 1200 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Investigation Level MDC pCi/L C-27

0 1

2 3

4 5

6 7

8 9

10 pCi/L FIGURE C GROSS BETA ACTIVITY IN DRINKING WATER PREOPERATIONAL OPERATIONAL Unit 2 Criticality 05/08/1984 Unit 1 Criticality 09/10/1982 C-28

-500 500 1500 2500 3500 pCi/L FIGURE C TRITIUM ACTIVITY IN SURFACE WATER Indicator Control PREOPERATIONAL OPERATIONAL Unit 2 Criticality 05/08/1984 Unit 1 Criticality 09/10/1982 C-29

Intentionally left blank C-30

APPENDIX D

SUMMARY

OF RESULTS FROM ANALYTICS, ENVIRONMENTAL RESOURCE ASSOCIATES (ERA),

DEPARTMENT OF ENERGY (DOE) - MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP),

AND PPL REMP LABORATORY QUALITY CONTROL SPIKE PROGRAM D-1

TABLE D1 Month/Year Identification Number Matrix Nuclide Units TBE Reported Value Known Value (a)

Ratio of TBE to Analytics Result Evaluation (b)

March 2017 E11811 Milk Sr-89 pCi/L 87 97.7 0.89 A

Sr-90 pCi/L 12.4 16.2 0.77 E11812 Milk Ce-141 pCi/L 135 145 0.93 A

Co-58 pCi/L 153 150 1.02 A

Co-60 pCi/L 182 183 1.00 A

Cr-51 pCi/L 258 290 0.89 A

Cs-134 pCi/L 104 120 0.87 A

Cs-137 pCi/L 142 140 1.02 A

Fe-59 pCi/L 135 129 1.05 A

I-131 pCi/L 92.6 97.9 0.95 A

Mn-54 pCi/L 173 164 1.05 A

Zn-65 pCi/L 208 199 1.04 A

E11813 Charcoal I-131 pCi 92 93.9 0.98 A

E11814 AP Ce-141 pCi 99.9 101 0.99 A

Co-58 pCi 95.4 104 0.92 A

Co-60 pCi 140 127 1.10 A

Cr-51 pCi 211 201 1.05 A

Cs-134 pCi 82.1 83.2 0.99 A

Cs-137 pCi 92.8 97.0 0.96 A

Fe-59 pCi 107 89.3 1.20 A

Mn-54 pCi 106 114 0.93 A

Zn-65 pCi 137 138 0.99 A

E11816 Soil Ce-141 pCi/g 0.258 0.250 1.03 A

Co-58 pCi/g 0.241 0.258 0.93 A

Co-60 pCi/g 0.312 0.315 0.99 A

Cr-51 pCi/g 0.439 0.500 0.88 A

Cs-134 pCi/g 0.176 0.207 0.85 A

Cs-137 pCi/g 0.304 0.317 0.96 A

Fe-59 pCi/g 0.210 0.222 0.95 A

Mn-54 pCi/g 0.292 0.283 1.03 A

Zn-65 pCi/g 0.353 0.344 1.03 A

E11815 Water Fe-55 pCi/L 1600 1890 0.85 A

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

Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 Teledyne Brown Engineering Environmental Services Analytics Environmental Radioactivity Cross Check Program D-2

TABLE D1 Month/Year Identification Number Matrix Nuclide Units TBE Reported Value Known Value (a)

Ratio of TBE to Analytics Result Evaluation (b)

Teledyne Brown Engineering Environmental Services Analytics Environmental Radioactivity Cross Check Program June 2017 E11844 Milk Sr-89 pCi/L 81.3 92.6 0.88 A

Sr-90 pCi/L 12.1 13.5 0.90 A

E11846 Milk Ce-141 pCi/L 142 151 0.94 A

Co-58 pCi/L 147 155 0.95 A

Co-60 pCi/L 185 191 0.97 A

Cr-51 pCi/L 321 315 1.02 A

Cs-134 pCi/L 168 188 0.89 A

Cs-137 pCi/L 148 150 0.99 A

Fe-59 pCi/L 116 115 1.01 A

I-131 pCi/L 102 93.6 1.09 A

Mn-54 pCi/L 168 172 0.98 A

Zn-65 pCi/L 195 204 0.96 A

E11847 Charcoal I-131 pCi 87.9 84.8 1.04 A

E11845 AP Sr-89 pCi 70.8 79.1 0.90 A

Sr-90 pCi 9.10 11.5 0.79 W

E11848 AP Ce-141 pCi 112 116 0.96 A

Co-58 pCi 119 119 1.00 A

Co-60 pCi 171 146 1.17 A

Cr-51 pCi 270 241 1.12 A

Cs-134 pCi 152 144 1.05 A

Cs-137 pCi 114 115 0.99 A

Fe-59 pCi 94.1 88.3 1.07 A

Mn-54 pCi 139 132 1.06 A

Zn-65 pCi 141 156 0.90 A

E11849 Water Fe-55 pCi/L 1840 1890 0.97 A

July 2017 E11901 AP GR-A pCi 50.1 44.2 1.13 A

GR-B pCi 218 233 0.93 A

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

Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 D-3

TABLE D1 Month/Year Identification Number Matrix Nuclide Units TBE Reported Value Known Value (a)

Ratio of TBE to Analytics Result Evaluation (b)

Teledyne Brown Engineering Environmental Services Analytics Environmental Radioactivity Cross Check Program September 2017 E11914 Milk Sr-89 pCi/L 84.3 82.7 1.02 A

Sr-90 pCi/L 12.6 12.1 1.04 A

E11915 Milk Ce-141 pCi/L 93.9 87.0 1.08 A

Co-58 pCi/L 115 117 0.98 A

Co-60 pCi/L 265 262 1.01 A

Cr-51 pCi/L 273 217 1.26 W

Cs-134 pCi/L 186 201 0.93 A

Cs-137 pCi/L 175 172 1.02 A

Fe-59 pCi/L 137 125 1.09 A

I-131 pCi/L 78.0 71.0 1.10 A

Mn-54 pCi/L 128 123 1.04 A

Zn-65 pCi/L 206 184 1.12 A

E11916 Charcoal I-131 pCi 71.9 64.4 1.12 A

E11917 AP Ce-141 pCi 80.1 86.3 0.93 A

Co-58 pCi 110 116 0.95 A

Co-60 pCi 277 260 1.07 A

Cr-51 pCi 275 215 1.28 W

Cs-134 pCi 192 199 0.96 A

Cs-137 pCi 165 170 0.97 A

Fe-59 pCi 122 124 0.98 A

Mn-54 pCi 120 122 0.99 A

Zn-65 pCi 175 183 0.96 A

E11918 Water Fe-55 pCi/L 1630 1630 1.00 A

E11919 Soil Ce-141 pCi/g 0.136 0.142 0.96 A

Co-58 pCi/g 0.179 0.191 0.94 A

Co-60 pCi/g 0.405 0.429 0.94 A

Cr-51 pCi/g 0.230 0.355 0.65 N (1)

Cs-134 pCi/g 0.272 0.328 0.83 A

Cs-137 pCi/g 0.336 0.356 0.94 A

Fe-59 pCi/g 0.210 0.205 1.02 A

Mn-54 pCi/g 0.210 0.201 1.05 A

Zn-65 pCi/g 0.301 0.301 1.00 A

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

Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 (1) See NCR 17-16 D-4

TABLE D1 Month/Year Identification Number Matrix Nuclide Units TBE Reported Value Known Value (a)

Ratio of TBE to Analytics Result Evaluation (b)

Teledyne Brown Engineering Environmental Services Analytics Environmental Radioactivity Cross Check Program December 2017 E12054 Milk Sr-89 pCi/L 92.1 92.3 1.00 A

Sr-90 pCi/L 18.3 16.9 1.09 A

E12055 Milk Ce-141 pCi/L 97.8 98.3 0.99 A

Co-58 pCi/L 92.3 89.9 1.03 A

Co-60 pCi/L 176 173 1.02 A

Cr-51 pCi/L 226 242 0.93 A

Cs-134 pCi/L 118 125 0.95 A

Cs-137 pCi/L 148 141 1.05 A

Fe-59 pCi/L 123 113 1.08 A

I-131 pCi/L 66.0 57.8 1.14 A

Mn-54 pCi/L 173 161 1.08 A

Zn-65 pCi/L 233 211 1.10 A

E12056 Charcoal I-131 pCi 48.1 47.5 1.01 A

E12057A AP Ce-141 pCi 108 111 0.97 A

Co-58 pCi 89.5 102 0.88 A

Co-60 pCi 223 196 1.14 A

Cr-51 pCi 311 274 1.13 A

Cs-134 pCi 141 142 1.00 A

Cs-137 pCi 162 160 1.01 A

Fe-59 pCi 121 129 0.94 A

Mn-54 pCi 177 182 0.97 A

Zn-65 pCi 203 239 0.85 A

E12058 Water Fe-55 pCi/L 1970 1740 1.13 A

E12059 AP Sr-89 pCi 71.2 87.4 0.81 A

Sr-90 pCi 12.9 16.0 0.81 A

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

Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 D-5

TABLE D2 Month/Year Identification Number Matrix Nuclide Units TBE Reported Value Known Value (a)

Acceptance Range Evaluation (b)

February 2017 17-MaS36 Soil Ni-63 Bq/kg

-5.512 (1)

A Sr-90 Bq/kg 571 624 437 - 811 A

17-MaW36 Water Am-241 Bq/L 0.693 0.846 0.592 - 1.100 A

Ni-63 Bq/L 13.4 12.2 8.5 - 15.9 A

Pu-238 Bq/L 0.7217 0.703 0.492 - 0.914 A

Pu-239/240 Bq/L 0.9277 0.934 0.654 - 1.214 A

17-RdF36 AP U-234/233 Bq/sample 0.0911 0.104 0.073 - 0.135 A

U-238 Bq/sample 0.0967 0.107 0.075 - 0.139 A

17-RdV36 Vegetation Cs-134 Bq/sample 6.44 6.95 4.87 - 9.04 A

Cs-137 Bq/sample 4.61 4.60 3.22 - 5.98 A

Co-57 Bq/sample

-0.0229 (1)

A Co-60 Bq/sample 8.52 8.75 6.13 - 11.38 A

Mn-54 Bq/sample 3.30 3.28 2.30 - 4.26 A

Sr-90 Bq/sample 1.30 1.75 1.23 - 2.28 W

Zn-65 Bq/sample 5.45 5.39 3.77 - 7.01 A

August 2017 17-MaS37 Soil Ni-63 Bq/kg 1130 1220 854 - 1586 A

Sr-90 Bq/kg 296 289 202 - 376 A

17-MaW37 Water Am-241 Bq/L 0.838 0.892 0.624 - 1.160 A

Ni-63 Bq/L

-0.096 (1)

A Pu-238 Bq/L 0.572 0.603 0.422 - 0.784 A

Pu-239/240 Bq/L 0.863 0.781 0.547 - 1.015 A

17-RdF37 AP U-234/233 Bq/sample 0.103 0.084 0.059 - 0.109 W

U-238 Bq/sample 0.115 0.087 0.061 - 0.113 N (2) 17-RdV37 Vegetation Cs-134 Bq/sample 2.34 2.32 1.62 - 3.02 A

Cs-137 Bq/sample 0.05 (1)

A Co-57 Bq/sample 3.32 2.8 2.0 - 3.6 A

Co-60 Bq/sample 2.09 2.07 1.45 - 2.69 A

Mn-54 Bq/sample 2.90 2.62 1.83 - 3.41 A

Sr-90 Bq/sample 1.17 1.23 0.86 - 1.60 A

Zn-65 Bq/sample 6.07 5.37 3.76 - 6.98 A

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

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 (1) False positive test (2) See NCR 17-15 Teledyne Brown Engineering Environmental Services DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

D-6

TABLE D3 Month/Year Identrification Number Matrix Nuclide Units TBE Reported Value Known Value (a)

Acceptance Limits Evaluation (b)

March 2017 MRAD-26 AP GR-A pCi/sample 76.3 85.5 28.6 - 133 A

April 2017 RAD-109 Water Ba-133 pCi/L 49.2 49.7 40.8 - 55.1 A

Cs-134 pCi/L 83.2 90.1 74.0 - 99.1 A

Cs-137 pCi/L 202 206 185 - 228 A

Co-60 pCi/L 51.2 54.7 49.2 - 62.7 A

Zn-65 pCi/L 39.3 53.8 47.2 - 65.9 N (1)

GR-A pCi/L 53.6 75.0 39.5 - 92.3 A

GR-B pCi/L 42.7 38.5 25.5 - 46.0 A

U-Nat pCi/L 50.1 55.6 45.2 - 61.7 A

H-3 pCi/L 7080 6850 5920 - 7540 A

Sr-89 pCi/L 40.7 66.2 53.8 - 74.3 N (1)

Sr-90 pCi/L 26.9 26.7 19.3 - 31.1 A

I-131 pCi/L 26.7 29.9 24.9 - 34.9 A

September 2017 MRAD-27 AP GR-A pCi/sample 40.9 50.1 16.8 - 77.8 A

AP GR-B pCi/sample 58.0 61.8 39.1 - 90.1 A

October 2017 RAD-111 Water Ba-133 pCi/L 71.3 73.7 61.7 - 81.1 A

Cs-134 pCi/L 43.0 53.0 42.8 - 58.3 A

Cs-137 pCi/L 48.2 52.9 47.6 - 61.1 A

Co-60 pCi/L 69.0 69.5 62.6 - 78.9 A

Zn-65 pCi/L 335 348 313 - 406 A

GR-A pCi/L 32.5 35.6 18.3 - 45.8 A

GR-B pCi/L 24.3 25.6 16.0 - 33.6 A

U-Nat pCi/L 36.6 37.0 30.0 - 40.9 A

H-3 pCi/L 6270 6250 5390 - 6880 A

I-131 pCi/L 26.4 24.2 20.1 - 28.7 A

November 2017 111317O Water Sr-89 pCi/L 57.1 50.0 39.4 - 57.5 A

Sr-90 pCi/L 27.1 41.8 30.8 - 48.0 N (2)

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

(b) ERA evaluation:

A = Acceptable - Reported value falls within the Acceptance Limits N = Not Acceptable - Reported value falls outside of the Acceptance Limits (1)

See NCR 17-09 (2)

See NCR 17-19 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services D-7

QUALITY CONTROL SPIKE PROGRAM Identification Analytics TBE TBE/Analytics Month/Year Number Matrix Nuclide Units Calculated Results (a)

Results (a)

Ratio September 2017 E11962 Soil Ce-141 pCi/kg 142 +/- 5 148 +/- 22 1.04 Cr-51 pCi/kg 355 +/- 12 329 +/- 126 0.93 Cs-134 pCi/kg 328 +/- 11 295 +/- 13 0.90 Cs-137 pCi/kg 281 +/- 9 361 +/- 15 1.28 Co-58 pCi/kg 191 +/- 6 181 +/- 16 0.95 Mn-54 pCi/kg 201 +/- 7 215 +/- 15 1.07 Fe-59 pCi/kg 205 +/- 7 243 +/- 26 1.18 Zn-65 pCi/kg 301 +/- 10 293 +/- 28 0.97 Co-60 pCi/kg 429 +/- 14 400 +/- 14 0.93 March 2017 E11798 Milk I-131 pCi/L 71.9 +/- 2 75.4 +/- 3 1.05 Ce-141 pCi/L 257 +/- 9 233 +/- 11 0.91 Cr-51 pCi/L 515 +/- 17 475 +/- 47 0.92 Cs-134 pCi/L 213 +/- 7 181 +/- 6 0.85 Cs-137 pCi/L 248 +/- 8 232 +/- 8 0.93 Co-58 pCi/L 266 +/- 9 240 +/- 10 0.90 Mn-54 pCi/L 292 +/- 10 281 +/- 9 0.96 Fe-59 pCi/L 229 +/- 8 240 +/- 11 1.05 Zn-65 pCi/L 354 +/- 12 350 +/- 18 0.99 Co-60 pCi/L 325 +/- 11 310 +/- 7 0.95 June 2017 E11850 Milk I-131 pCi/L 98.3 +/- 3 102 +/- 3 1.04 Ce-141 pCi/L 252 +/- 8 230 +/- 9 0.91 Cr-51 pCi/L 524 +/- 18 525 +/- 55 1.00 Cs-134 pCi/L 313 +/- 10 269 +/- 6 0.86 Cs-137 pCi/L 250 +/- 8 234 +/- 9 0.94 Co-58 pCi/L 259 +/- 9 239 +/- 9 0.92 Mn-54 pCi/L 286 +/- 10 277 +/- 9 0.97 Fe-59 pCi/L 192 +/- 6 197 +/- 12 1.02 Zn-65 pCi/L 339 +/- 1 324 +/- 16 0.96 Co-60 pCi/L 318 +/- 11 307 +/- 7 0.96 September 2017 E11958 Milk I-131 pCi/L 57.5 +/- 2 76 +/- 3 1.32 Ce-141 pCi/L 108 +/- 4 103 +/- 13 0.96 Cr-51 pCi/L 270 +/- 9 233 +/- 65 0.86 Cs-134 pCi/L 250 +/- 8 218 +/- 5 0.87 Cs-137 pCi/L 214 +/- 7 207 +/- 8 0.96 Co-58 pCi/L 146 +/- 5 143 +/- 8 0.98 Mn-54 pCi/L 153 +/- 5 148 +/- 8 0.97 Fe-59 pCi/L 156 +/- 5 167 +/- 14 1.07 Zn-65 pCi/L 229 +/- 8 231 +/- 17 1.01 Co-60 pCi/L 326 +/- 11 317 +/- 7 0.97 TABLE D4 SUSQUEHANNA REMP LABORATORY SPIKE PROGRAM ANALYTICS ENVIRONMENTAL RADIOACTIVTY CROSS CHECK PROGRAM - 2017 TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (TBE)

(PAGE 1 OF 4)

D-8

QUALITY CONTROL SPIKE PROGRAM Identification Analytics TBE TBE/Analytics Month/Year Number Matrix Nuclide Units Calculated Results (a)

Results (a)

Ratio December 2017 E12046 Milk I-131 pCi/L 55.1 +/- 2 67 +/- 6 1.21 Ce-141 pCi/L 96.1 +/- 3 105 +/- 9 1.09 Cr-51 pCi/L 237 +/- 8 248 +/- 66 1.05 Cs-134 pCi/L 122 +/- 4 124 +/- 6 1.02 Cs-137 pCi/L 138 +/- 5 160 +/- 11 1.16 Co-58 pCi/L 87.8 +/- 3 90 +/- 10 1.02 Mn-54 pCi/L 157 +/- 5 163 +/- 11 1.04 Fe-59 pCi/L 111 +/- 4 129 +/- 15 1.16 Zn-65 pCi/L 206 +/- 7 229 +/- 21 1.11 Co-60 pCi/L 169 +/- 6 182 +/- 8 1.07 March 2017 E11799 AP Filter Ce-141 pCi/L 98.2 +/- 3 92 +/- 13 0.94 Cr-51 pCi/L 196 +/- 7 219 +/- 85 1.12 Cs-134 pCi/L 81.2 +/- 3 80 +/- 7 0.99 Cs-137 pCi/L 94.7 +/- 3 98 +/- 13 1.04 Co-58 pCi/L 101 +/- 4 91 +/- 11 0.90 Mn-54 pCi/L 111 +/- 4 112 +/- 12 1.01 Fe-59 pCi/L 87.2 +/- 3 83 +/- 18 0.96 Zn-65 pCi/L 135 +/- 5 138 +/- 20 1.02 Co-60 pCi/L 124 +/- 4 136 +/- 9 1.10 March 2017 E11800 AP Filter Ce-141 pCi 105 +/- 4 111 +/- 13 1.06 Cr-51 pCi 211 +/- 7 182 +/- 68 0.86 Cs-134 pCi 87.1 +/- 3 84 +/- 7 0.96 Cs-137 pCi 102 +/- 4 105 +/- 12 1.03 Co-58 pCi 109 +/- 4 101 +/- 13 0.93 Mn-54 pCi 119 +/- 4 124 +/- 13 1.04 Fe-59 pCi 93.6 +/- 3 101 +/- 21 1.08 Zn-65 pCi 145 +/- 5 127 +/- 25 0.88 Co-60 pCi 133 +/- 5 162 +/- 11 1.22 March 2017 E11801 AP Filter Ce-141 pCi 101 +/- 4 101 +/- 12 1.00 Cr-51 pCi 202 +/- 7 234 +/- 67 1.16 Cs-134 pCi 83.6 +/- 3 82 +/- 8 0.98 Cs-137 pCi 97.5 +/- 3 102 +/- 15 1.04 Co-58 pCi 104 +/- 4 101 +/- 13 0.97 Mn-54 pCi 115 +/- 4 122 +/- 12 1.06 Fe-59 pCi 89.8 +/- 3 100 +/- 18 1.11 Zn-65 pCi 139 +/- 5 135 +/- 23 0.97 Co-60 pCi 127 +/- 4 164 +/- 10 1.29 ANALYTICS ENVIRONMENTAL RADIOACTIVTY CROSS CHECK PROGRAM - 2017 TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (TBE)

(PAGE 2 OF 4)

TABLE D4 SUSQUEHANNA REMP LABORATORY SPIKE PROGRAM D-9

QUALITY CONTROL SPIKE PROGRAM Identification Analytics TBE TBE/Analytics Month/Year Number Matrix Nuclide Units Calculated Results (a)

Results (a)

Ratio June 2017 E11851 AP Filter Ce-141 pCi 120 +/- 4 117 +/- 15 0.98 Cr-51 pCi 249 +/- 9 259 +/- 82 1.04 Cs-134 pCi 149 +/- 5 151 +/- 8 1.01 Cs-137 pCi 119 +/- 4 117 +/- 13 0.98 Co-58 pCi 123 +/- 4 121 +/- 13 0.99 Mn-54 pCi 136 +/- 5 129 +/- 15 0.95 Fe-59 pCi 91.0 +/- 3 92 +/- 17 1.01 Zn-65 pCi 161 +/- 6 153 +/- 26 0.95 Co-60 pCi 151 +/- 5 174 +/- 10 1.15 June 2017 E11852 AP Filter Ce-141 pCi 120 +/- 4 121 +/- 12 1.01 Cr-51 pCi 250 +/- 9 240 +/- 75 0.96 Cs-134 pCi 149 +/- 5 155 +/- 9 1.04 Cs-137 pCi 119 +/- 4 125 +/- 12 1.05 Co-58 pCi 123 +/- 4 122 +/- 14 0.99 Mn-54 pCi 136 +/- 5 132 +/- 16 0.97 Fe-59 pCi 91.3 +/- 3 89 +/- 19 0.97 Zn-65 pCi 161 +/- 6 160 +/- 24 1.00 Co-60 pCi 151 +/- 5 175 +/- 11 1.16 June 2017 E11853 AP Filter Ce-141 pCi 119 +/- 4 129 +/- 14 1.09 Cr-51 pCi 247 +/- 9 225 +/- 97 0.91 Cs-134 pCi 148 +/- 5 149 +/- 9 1.00 Cs-137 pCi 118 +/- 4 130 +/- 14 1.10 Co-58 pCi 122 +/- 4 118 +/- 13 0.96 Mn-54 pCi 135 +/- 5 142 +/- 14 1.05 Fe-59 pCi 90.5 +/- 3 83 +/- 17 0.91 Zn-65 pCi 160 +/- 6 153 +/- 25 0.95 Co-60 pCi 150 +/- 5 175 +/- 11 1.16 December 2017 E12047A AP Filter Ce-141 pCi 61.8 +/- 2 52 +/- 13 0.84 Cr-51 pCi 152 +/- 5 147 +/- 69 0.97 Cs-134 pCi 78.4 +/- 3 85 +/- 12 1.09 Cs-137 pCi 88.8 +/- 3 92 +/- 12 1.04 Co-58 pCi 56.5 +/- 2 55 +/- 11 0.98 Mn-54 pCi 101 +/- 4 102 +/- 12 1.01 Fe-59 pCi 71.2 +/- 2 61 +/- 19 0.86 Zn-65 pCi 133 +/- 5 137 +/- 27 1.03 Co-60 pCi 109 +/- 4 141 +/- 11 1.29 ANALYTICS ENVIRONMENTAL RADIOACTIVTY CROSS CHECK PROGRAM - 2017 TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (TBE)

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TABLE D4 SUSQUEHANNA REMP LABORATORY SPIKE PROGRAM D-10

QUALITY CONTROL SPIKE PROGRAM Identification Analytics TBE TBE/Analytics Month/Year Number Matrix Nuclide Units Calculated Results (a)

Results (a)

Ratio December 2017 E12048A AP Filter Ce-141 pCi 102 +/- 3 94 +/- 12 0.92 Cr-51 pCi 251 +/- 9 199 +/- 79 0.79 Cs-134 pCi 129 +/- 5 132 +/- 9 1.02 Cs-137 pCi 146 +/- 5 158 +/- 15 1.08 Co-58 pCi 93.1 +/- 3 88 +/- 13 0.94 Mn-54 pCi 166 +/- 6 161 +/- 15 0.97 Fe-59 pCi 117 +/- 4 119 +/- 21 1.01 Zn-65 pCi 219 +/- 8 192 +/- 27 0.87 Co-60 pCi 179 +/- 6 204 +/- 11 1.14 December 2017 E12049A AP Filter Ce-141 pCi 75.2 +/- 3 64 +/- 10 0.85 Cr-51 pCi 185 +/- 6 226 +/- 85 1.22 Cs-134 pCi 95.5 +/- 3 101 +/- 13 1.05 Cs-137 pCi 108 +/- 4 108 +/- 11 1.00 Co-58 pCi 68.8 +/- 2 70 +/- 13 1.02 Mn-54 pCi 123 +/- 4 129 +/- 14 1.04 Fe-59 pCi 86.8 +/- 3 78 +/- 19 0.89 Zn-65 pCi 162 +/- 6 160 +/- 21 0.99 Co-60 pCi 132 +/- 5 160 +/- 11 1.21 March 2017 E11805 Water H-3 pCi/L 4900 +/- 163 4480 +/- 398 0.91 June 2017 E11854 Water H-3 pCi/L 4790 +/- 160 4900 +/- 539 1.02 September 2017 E11963 Water H-3 pCi/L 2820 +/- 94 2770 +/- 262 0.98 December 2017 E12053 Water H-3 pCi/L 4710 +/- 157 4420 +/- 397 0.94 March 2017 E11802 Charcoal I-131 pCi 94.4 +/- 3 97 +/- 3 1.02 March 2017 E11803 Charcoal I-131 pCi 95.0 +/- 3 97 +/- 3 1.02 March 2017 E11804 Charcoal I-131 pCi 95.1 +/- 3 93 +/- 3 0.97 September 2017 E11959 Charcoal I-131 pCi 64.9 +/- 2 67 +/- 8 1.04 September 2017 E11960 Charcoal I-131 pCi 87.1 +/- 3 88 +/- 9 1.01 September 2017 E11961 Charcoal I-131 pCi 74.9 +/- 3 77 +/- 21 1.03 December 2017 E12050 Charcoal I-131 pCi 64 +/- 2 65 +/- 4 1.02 December 2017 E12051 Charcoal I-131 pCi 38 +/- 1 41 +/- 3 1.06 December 2017 E12052 Charcoal I-131 pCi 57 +/- 2 58 +/- 3 1.01 ANALYTICS ENVIRONMENTAL RADIOACTIVTY CROSS CHECK PROGRAM - 2017 TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (TBE)

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TABLE D4 SUSQUEHANNA REMP LABORATORY SPIKE PROGRAM D-11

Intentionally left blank D-12

APPENDIX E REMP SAMPLE EQUIPMENT OPERABILITY TRENDING E-1

SAMPLING MEDIA SAMPLE LOCATION DESCRIPTION 2010 2011 2012 2013 2014 2015 2016 2017 Air Particulate 3S2 SSES Backup Met. Tower 99.9 99.3 98.9 99.9 100 99 100 99.9

& Charcoal 12S1 West Building 99.9 100 99.9 99.9 100 100 100 99.1 13S6 Former Laydown Area, West of Confers Lane 100 99.7 99.1 99.9 100 97 100 100 12E1 Berwick Hospital 100 100 99.9 100.0 100 10 99.1 100 6G1 Freeland Substation 100 100 99.9 99.9 100 90*

100 100 8G1 PPL System Facilities Center, Humboldt Industrial Park 99.7 100 99.8 99.9 100 100 99.2 99.9 10S3 E of Confers Lane, S of Towers Club 100 99.5 9B1 Transmission Line, E of Route 11 100 99.9 Drinking Water 12H2 Danville Water Company 100 100 100 100.0 100 100 100 100 Surface Water 2S7 Cooling Tower Blowdown Discharge Line 98.0 99.1 98.1 98.1 69**

100 99.1 100 6S6 River Water Intake Line 100 95.5 93.4 93.2 93 98 99.7 99.9

Planned power outage by Electric Utilities

- Auto-Compsite sampler problems, March through June. New Auto-Compsite sampler installed in July.

TABLE E-1 REMP SAMPLING EQUIPMENT OPERABILITY TRENDING

SUSQUEHANNA STEAM ELECTRIC STATION PerFent (%) Operability E-2

PLA-7699, Annual Radiological Environmental Operating Report for 2017

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