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Annual Radiological Environmental Operating Report for 2016
	ML17130A701
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Site:	Zion File:ZionSolutions icon.png
Issue date:	05/31/2017
From:	; Teledyne Brown Engineering Environmental Services
To:	; Office of Nuclear Material Safety and Safeguards
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ML17130A722	List: ML17130A700; ZS-2017-0054, Annual Radiological Environmental Operating Report for 2016;
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Docket No: 50-295 50-304 72-1037 ZION NUCLEAR POWER STATION UNITS 1 and 2 Annual Radiological Environmental Operating Report 1 January through 31 December 2016 Prepared By Teledyne Brown Engineering Environmental Services Zion Nuclear Power Station Zion, IL 60099 May 2017

Table Of Contents I. Summary and Conclusions .............................................................................................. 1 II. Introduction ...................................................................................................................... 2 A~ Objectives of the REMP ...................................................................................... 2 B. Implementation of the Objectives ........................................................................ 2 Ill. Program Description ................................ :..................................................................... 2 A. Sample Collection .......................*...... *.................................................................. 2 B. Sample Analysis ...................................................................*............................... 4 C. Data Interpretation .............................................................................................. 5 D. Program Exceptions ......*...................................................................................... 6 E. Program Changes ............................................................................................... 6 IV. Results and Discussion ................................................................................................. 7 A. Aquatic Environment ........................................................................................... 7

1. Public Water ............................................................................................. 7

2. Fish ....................................................... :................................................... 7

3. Sediment. ...................................................... ~ ............................................ 7 B.. Atmospheric Environment ................................................................................... 8 1 . Airborne .......................*............................................................................ 8

a. Air Particulates ............................................................................... 8 C. Terrestrial Environment ....................................................................................... 8

1. Food Product ............................................................................................ 8 D. Ambient Gamma Radiation ................................................................................. 9 E. Land Use Survey ................................................................................................. 9 F. Errata Data ........................................................................................................ 10 G. Summary of Results - Inter-laboratory Comparison Program ......................... 10

Appendices Appendix A Radiological Environmental Monitoring Report Summary Tables Table A-1 Radiological Environmental Monitoring Program Annual Summary for the Zion Nuclear Power Station, 2016 Appendix B Location Designation, Distance & Direction, and Sample Collection &

Analytical Methods Tables Table B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2016 Table B-2 Radiological Environmental Monitoring Program - Summary of Sar:nple Collection and Analytical Methods, Zion Nuclear Power Station, 2016 Figures Figure B-1 Inner Ring TLD and Fixed Air Sampler Locations of the Zion Nuclear Power Station, 2016 Figure 8-2 Outer Ring TLD and Fixed Air Sampler Locations of the Zion Nuclear Power Station, 2016 Figure B-3 Fish, Water and Sediment Sampling Locations of the Zion Nuclear Power Station, 2016 Appendix C Data Tables and Figures - Primary Laboratory Tables Table C-1.1 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Table C-1.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Table C-1.3 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Table C-11.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016

Table C-111.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 ii

Table C-IV.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Table C-IV.2 Monthly and Yearly Mean Values of Gross Beta Concentrations (E-3 pCi/cu meter) in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Table C-IV.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Table C-V.1 Concentration of Gamma Emitters in Vegetation Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Table C-Vl.1 Quarterly TLD Results for Zion Nuclear Power Station, 2016 Table C-Vl.2 Mean Quarterly TLD Results for the Inner Ring, ISFSI Inner Ring, Outer Ring, Other and Control Locations for Zion Nuclear Power Station, 2016 Table C-Vl.3 Summary of the Ambient Dosimetry Program for Zion Nuclear Power Station, 2016 Figures Figure C-1 Public Water - Gross Beta - Stations Z-14 and Z-15 Collected in the Vicinity of ZNPS, 2000 - 2016 Figure C-2 Public Water- Gross Beta - Stations Z-16 and Z-18 Collected in the Vicinity of ZNPS, 2000 - 2016 Figure C-3 Public Water - Tritium - Stations Z-14 and Z-15 Collected in the Vicinity of ZNPS, 2000 - 2016 Figure C-4 Public Water - Tritium - Stations Z-16 and Z-18 Collected in the Vicinity of ZNPS, 2000 - 2016 Figure C-5 Air Particulates - Gross Beta - Stations Z-01 and Z-02 Collected in the Vicinity of ZNPS, 2000 - 2016 Figure C-6 Air Particulate - Gross Beta - Stations Z-03 and Z-13 Collected in the Vicinity of ZNPS, 2000 - 2016 Appendix D Inter-Laboratory Comparison Program Tables Table D-1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2016 Table D-2 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2016 Table D-3 ERA Environmental Radioactivity Cross Check Program iii

Teledyne Brown Engineering, 2016 Table D-4 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2016 Table D-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2016 Appendix E Effluent Data Appendix F Meteorological Data Appendix G Annual Radiological Groundwater Protection Program Report *

(ARGPPR) iv

I. Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for the Zion Nuclear Power Station (ZNPS) by ZionSo/utions (ZS) covers the period 1 January 2016 through 31 December 2016. During that time period, 609 analyses were performed on 529 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of ZNPS had no adverse radiological impact on the environment.

Public water samples were analyzed for concentrations of gros*s beta, tritium and gamma-emitting nuclides. No fission or activation products were detected.

Gross beta activities detected were consistent with those detected in previous years.

Fish (commercially and recreationally important species) and sediment samples were analyzed for concentrations of gamma-emitting nuclides. No Cesium-137 (Cs-137) activity was detected in fish or sediment samples*. No plant produced fission or activation products were found in fish or sediment.

Air particulate samples were analyzed for concentrations of gross beta and gamma-emitting nuclides. No fission or activation products were detected.

Environmental gamma radiation measurements were performed quarterly using thermoluminescent dosimeters.

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Intentionally left blank II. Introduction The Zion Nuclear Power Station (ZNPS), consisted of two 1, 100 MWt pressurized water reactors was owned and operated by Exelon Corporation, is located in Zion, Illinois adjacent to Lake Michigan. Unit No. 1 went critical in December 1973. Unit No. 2 went critical in September 1974. The plant permanently ceased operation in January of 1998 and has been permanently defueled. The plant is in an advanced state of decommissioning. The site is located in northeast Illinois on the western shore of Lake Michigan, approximately 50 miles north of Chicago, Illinois.

This report covers those analyses performed by Teledyne Brown Engineering (TBE), Mirian Technologies and Environmental Inc. (Midwest Labs) on samples collected during the period 1 January 2016 through 31 December 2016.

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

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

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

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

1. Identifying significant exposure pathways

2. Establishing baseline radiological data of media within those pathways

3. Continuously monitoring those media before, during and after Station operation to assess Station radiological effects (if any) on man and the environment Ill. Program Description A.* Sample Collection Samples for the ZNPS REMP were collected for ZS by Environmental Inc. (Midwest Labs). This section describes the general collection methods used by Environmental Inc. (Midwest Labs) to obtain environmental sam*ples for the ZNPS REMP in 2016. Sample locations 2

and descriptions can be found in Table B-1 and Figures B-1 and B-2, Appendix B. The sampling methods used by Environmental Inc.

(Midwest Labs) are listed in Table B-2.

Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of public water, fish and sediment. Two gallon water samples were collected monthly from four public water locations (Z-14, Z-15, Z-16 and Z-18). Control locations were Z-14 and Z-18. All samples were collected in new unused plastic bottles, which were rinsed at least twice with source water prior to collection. Fish samples comprising the flesh of white sucker, northern pike, common carp, brown trout, lake trout, and burbot were collected semiannually at two locations, Z-26 and Z-27. Sediment samples composed of recently deposited substrate were collected at one location semiannually, Z-25.

Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulates. Airborne particulate samples were collected and analyzed weekly at four locations (Z-01, Z-02, Z-03, and Z-13). The control location was Z-13. Airborne particulate samples

were obtained at each location, using a vacuum pump with glass fiber filters attached. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.

Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on food product samples. Food products were collected annually in September at three locations (Z-Control, Z-Quad 3 and Z-Quad 4). The control location was Z-Control. Various types of samples were collected and placed in new unused plastic bags and sent to the laboratory for analysis.

Ambient Gamma Radiation Direct radiation measurements were made using 2 CaF 200 and 2 LiF 100 LiF 4-chip Harshaw thermoluminescent dosimeters (TLD) until the 3rd Quarter of 2016. Starting the 4th Quarter of 2016, all TLD's were replaced with Panasonic Environmental TLD type 814 with 3 CaSQ4 elements that do not give an over-response to neutrons. Each location consisted of 2 TLD sets. The TLD locations were placed on and around the ZNPS site at the following locations:

Inner Ring: Z-01, Z-02, Z-03, Z-101, Z-102, Z-103, Z-104, Z-105, Z-106, 3

Z-107, Z-108, Z-109, Z-112, Z-113, Z-114, Z-115, Z-121, Z-124, Z-125, Z-129, Z-130, Z-131 Special Interest: Z-113, Z-114, Z-115, Z-116 Outer Ring: Z-209, Z-211, Z-212, Z-213, Z-214, Z-215, Z-216 Control: Z-13 The specific TLD locations were determined by the following criteria:

1. The presence of relatively dense population;.

2. Site meteorological data taking into account distance and elevation for each of the sixteen-22 1/2 degree sectors around the site, where estimated annual dose from ZNPS, if any, would be most significant;

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

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

(Two TLDs - each comprised of two CaF2 200 and 2 LiF 100 LiF 4-chip thermoluminescent phosphors enclosed in plastic - were placed at each location approximately four to eight feet above ground level. The TLDs were exchanged quarterly and sent to Mirian Technologies for analysis.

B. Sample Analysis This section describes the general analytical methodologies used by TBE and Environmental Inc. (Midwest Labs) to analyze the environmental samples for radioactivity for the ZNPS REMP in 2016. The analytical procedures used by the laboratories are listed in Table B-2.

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

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

2. Concentrations of gamma emitters in public water, air particulates, fish, and sediment

3. Concentrations of tritium in public water

4. Ambient gamma radiation levels at various site environs 4

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

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

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

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

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

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

Means and standard deviations of the results were calculated.

The standard deviations represent the variability of measured

. results for different samples rather than single analysis uncertainty.

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D. Program Exceptions For 2016 the ZNPS REMP had a sample recovery rate in excess of 98%.

Sample anomalies and missed samples are listed in the tables below:

Table D-1 LISTING OF SAMPLE ANOMALIES Sampl_e Location Collection Reason Type Code Date AP Z-02 01/20/16 No apparent reason for low reading of 121.6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months AP Z-02 11/16/16 Timer malfunction; collector replaced timer. Timer reading of 1638.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months based on previous weeks' time.

Table D-2 LISTING OF MISSED SAMPLES Sample Location Collection Reason Type Code Date TLD Z-02-2 12/20/16 TLD missing during weekly check; collector placed spare.

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

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

E. Program Changes Harshaw TLD100 chip was removed as environmental TLD because it contains natural Lithium which has a percentage of Li-6. When Li-6 is in a neutron field, the Li-6 responds to the neutrons and gives a gamma over-response. Neutron dose is already handled in a different manner using TLD's that are calibrated correctly to respond to neutrons. Thus the Environmental TLD type was changed to Panasonic 814's that do not contain the natural Li in the TLD chips, but are suitable to measure the same dose range as proven by a study conducted and over 1 year of data was obtained to compare responses.

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IV. Results and Discussion A. Aquatic Environment

1. Public Water Samples were taken weekly and composited monthly at four locations (Z-14, Z-15,.Z-16 and Z-18). The following analyses were perform~d.

Gross Beta Samples from all locations were analyzed for concentrations of gross beta (Table C-1.1, Appendix C). Gross beta was detected in 30 of 48 samples. The values ranged from 2.1 pCi/I to 4.7 pCi/I.

Concentrations detected were consistent with those detected in previous years (Figures C-1 and C-2, Appendix C).

Tritium Quarterly composites of weekly collections were analyzed for tritium activity (Table C-1.2, Appendix C). No tritium was detected and the LLD was met (Figures C-3 and C-4,* Appendix C).

Gamma Spectrometry Samples from both locations were analyzed for gamma-emitting .

nuclides (Table C-1.3, Appendix C). No nuclides were detected and all required LLDs were met.

2. Fish Fish samples comprised of white sucker, northern pike, common carp, brown trout, lake trout, and burbot were collected at two locations (Z-26 and Z-27) semiannually. The following analysis was performed:

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

No nuclides were detected and all required LLDs were met.

3. Sediment Aquatic sediment samples were collected at one location (Z-25) semiannually. The following analysis was performed:

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Gamma Spectrometry

Sediment samples from Z-25 were analyzed for gamma-emitting nuclides {Table C-111.1, Appendix C). No nuclides were detected and all required LLDs were met.

8. Atmospheric Environment

1. Airborne

a. Air Particulates Continuous air particulate samples were collected from three locations on a weekly basis. The three locations were within the ZNPS site boundary (Z-01, Z-02 and Z-03). The following analyses were performed:

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

Detectable gross beta activity was observed at all locations.

Comparison of results among the three groups aid in determining the effects, if any, resulting from the operation of ZNPS. The results from the On-Site locations ranged from 6E-3 pCi/m 3 to 30E-3 pCi/m 3 with a mean of 14E-3 pCi/m 3 . The results from the Control location ranged from

?E-3 pCi/m 3 to 30E-3 pCi/m 3 with a mean of 16E-3 pCi/m 3 .

Comparison of the 2016 air particulate data with previous year's data indicate no effects from the operation of ZNPS.

Concentrations detected were consistent with those detected in previous years.

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

No plant-related nuclides were detected and all required LLDs were met. Naturally occurring Be-7 was detected; the source of this is described later in this report.

C. Terrestrial Environment

1. Food Product Food product samples were collected at three locations (Z-Control, Z-Quad 3 and Z-Quad 4) when available. The following analysis was performed:

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Gamma Spectrometry Samples from all locations were analyzed for gamma-emitting nuclides {Table C-V.1, Appendix C). No nuclides were detected and all required LLDs were met.

D. Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Harshaw (CaF and LiF) thermoluminescent dosimeters. Sixty-four TLD locations were hanging at 30 locations around the site. Results of TLD measurements are listed in Tables C-Vl.1 to C-Vl.3, Appendix C.

Most TLD measurements were below 25 mR/quarter, with a range of 13 mR/quarter to 50 mR/quarter.

E. Land Use Survey A Land Use Census conducted during August 2016 around the Zion Nuclear Power Station (ZNPS) was performed by Zion Station Personnel for ZS to comply with Chapter 3 of the Zion Offsite Dose Calculation Manual. The purpose of the survey was to document the nearest resident, milk producing animal and garden of greater than 500 ft2 in each of the sixteen 22 % degree sectors around the site. The results of this survey are summarized below:

Distance in Miles from ZS Sector Residence Garden Milk Farm Miles Miles Miles N 2.5 3.4 >10 NNE NE ENE

.E ESE SE SSE s

SSW 1.9 >10 >10 SW 1.1 4.8 >10 WSW 1.0 3.0 >10 w 1.1 2.9 >10 WNW 1.0 2.7 >10 NW 1.0 3.2 >10 NNW 1.3 3.5 >10 9

Source: Ill. Department of agriculture and USGS recommended using google maps to locate garden areas due to gardens and milk animals are voluntary declarations, also aerial photographs on ARCGIS layers updated by government sources are 5-10 years old.

Gardens located using Google Maps to narrow down areas that appeared to have been ploughed by aerial photographs, then visually verified by visiting locations.

Milk-producing animal located by internet search for dairies advertising selling milk for public consumption.

F. Errata Data There is no errata data for 2016.

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

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

2. ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, National Environmental Laboratory Accreditation Conference (NELAC), state-specific performance testing (PT) program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable.

The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.

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

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

For the TBE laboratory, 156 out of 160 analyses performed met the specified acceptance criteria. Four analyses (Milk - Sr-90, Vegetation -

Sr-90, and Water - H-3 samples) 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.

1. Teledyne Brown Engineering's MAPEP March 2016 air particulate cross check sample is now being provided to TBE by Analytics.

MAPEP's policy is to evaluate as failed non reported nuclides that were reported in the previous study. Since the Sr-90 was reported in the previous MAPEP study but not in this study MAPEP evaluated the Sr-90 for Soil as failed. NCR 16-14 The MAPEP March 2016 Sr-90 in vegetation was evaluated as failing a false positive test. In reviewing the data that was reported vs the data in LIMS, it was found that the error was incorrectly reported as 0.023 rather than the correct value of 0.230. If the value had been reported with the activity and correct uncertainty of 0.301 +/- 0.230, MAPEP would have evaluated the result as acceptable. NCR 16-14

2. Teledyne Brown Engineering's Analytics' March 2016 milk Sr-90 result of 15 +/- .125 pCi/L was higher than the known value of 11.4 pCi/L with a ratio of 1.32. The upper ratio of 1.30 (acceptable with warning) was exceeded. After an extensive review of the data it is believed the technician did not rinse the filtering apparatus properly and some cross contamination from one of the internal laboratory spike samples may have been transferred to the analytics sample. We feel the issue is specific to the March 2016 Analytics sample. NCR 16-26

3. Teledyne Brown Engineering's ERA November 2016 sample for H-:3 in water was evaluated as failing. A result of 918. pCi/L was reported incorrectly due to a data entry issue. If the correct value 11

of 9180 had been reported, ERA would have evaluated the result as acceptable. NCR 16-34

4. Teledyne Brown Engineering's Analytics' December 2016 milk Sr-90 sample result of 14. 7 +/- .26 pCi/L was higher than the known value of 10 pCi/L with a ratio of 1.47. The upper ratio of 1.30 (acceptable with warning) was exceeded. The technician entered the wrong aliquot into the LIMS system. To achieve a lower error term TBE uses a larger aliquot of 1.2L (Normally we use .6L for client samples). If the technician had entered an aliquot of 1.2L into the LIMS system, the result would have been 12.2 pCi/L, which would have been considered accept~ble. NCR 16-35 For the EIML laboratory, 198 of 203 analyses met the specified acceptance criteria. Five analyses (Water - Ba-133, Co-57; Soil - Ni-63, U-233/234, U-238) did not meet the specified acceptance criteria for the following reasons:

1. The Environmental Inc., Midwest Laboratory's ERA April 2016 water Ba-133 result of 65.2 pCl/L was higher than the known value of 58.8 pCi/L, exceeding the upper control limit of 64.9 pCi/L. The

reanalysis result of 57 .8 pCl/L fell within acceptance criteria.

2. The Environmental Inc., Midwest Laboratory's MAPEP February 2016_ water Co-57 result of 1.38 Bq/L sample was higher than the known value of 0.00 Bq/L sample. This sample is considered a false positive.

3. The Environmental Inc., Midwest Laboratory's MAPEP August 2016 soil Ni-60 result of 648 Bq/kg was lower than the known value of 990 Bq/kg, exceeding.the lower control limit of 693 Bq/kg.

Reanalysis with a smaller aliquot resulted in acceptable results. An investigation is in process to identify better techniques for analyzing samples with complex matrices.

4. The Environmental Inc., Midwest Laboratory's MAPEP August 2016 soil U-233/234 result of 46.8 Bq/kg was lower than the known value of 122 Bq/kg, exceeding the lower control limit of 85 Bq/kg. MAPEP states that samples contain two fractions of Uranium; one that is soluble in concentrated HN03 and HCL acid and one that is "fundamentally insoluble in these acids". They also state that HF treatment cannot assure complete dissolution.

Results are consistent with measuring the soluble form.

5. The Environmental Inc., Midwest Laboratory's MAPEP August 2016 soil U-238 result of 46.6 Bq/kg was lower than the known value of 121 Bq/kg, exceeding the lower control limit of 85 Bq/kg.

12

MAPEP states that samples contain two fractions of Uranium; one

that is soluble in concentrated HN03 and HCL acid and one that is "fundamentally insoluble in these acids". They also state that HF treatment cannot assure complete dissolution. Results are consistent with measuring the soluble form.

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

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Intentionally left blank APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2016 Name of Facility: ZION NUCLEAR POWER STATION DOCKET NUMBER: 50-295 & 50-304 Location of Facility: ZION,IL REPORTING PERIOD: 2016 INDICATOR CONTROL MEDIUM OR REQUIRED LOCATIONS LOCATION LOCATION WITH HIGHEST ANNUAL MEAN (M) NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN (M) MEAN (M) MEAN (M) STATION# NONROUTINE (UNIT OF ANALYSIS ANALYSIS OF DETECTION (F) (F) (F) NAME REPORTED MEASUREMENT) PERFORMED PERFORMED (LLD) RANGE RANGE RANGE DISTANCE AND DIRECTION MEASL!REMENTS PUBLIC WATER GR-B 48 4 3 3 3.1 Z-15 INDICATOR 0 (PC I/LITER) (25136) (8112) (8112) LAKE COUNTY WATER WORKS 2.1- 4.7 2.2-3.5 2.3-3.8 1.4 MILES NNW OF SITE H-3 16 200 <LLD <LLD 0 GAMMA 48 MN-54 15 <LLD <LLD 0 C0-58 15 <LLD <LLD 0

)>

I

..a. FE-59 30 <LLD <LLD 0 C0-60 15 <LLD <LLD 0 ZN-65 30 <LLD <LLD 0 NB-95 15 <LLD <LLD 0 ZR-95 15 <LLD <LLD 0 CS-134 15 <LLD <LLD 0 CS-137 18 <LLD <LLD 0 BA-140 NA <LLD <LLD 0 LA-140 NA <LLD <LLD 0 FISH GAMMA 2 (PCl/KG WET) MN-54 130 <LLD NA 0 C0-58 130 <LLD NA 0 FE-59 260 <LLD NA 0 C0-60 130 <LLD NA 0 ZN-65 260 <LLD NA 0 NB-95 NA <LLD NA 0 ZR-95 NA <LLD NA 0 CS-134 100 <LLD NA 0 CS-137 100 <LLD NA 0 BA-140 NA <LLD NA 0 LA-140 NA <LLD NA 0 (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2016 Name of Facility: ZION NUCLEAR POWER STATION DOCKET NUMBER: 50-295 & 50-304 Location of Facility: ZION, IL REPORTING PERIOD: 2016 INDICATOR CONTROL MEDIUM OR REQUIRED LOCATIONS LOCATION LOCATION WITH HIGHEST ANNUAL MEAN (M) NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN (M) MEAN(M) MEAN(M) STATION# NONROUTINE (UNIT OF ANALYSIS ANALYSIS OF DETECTION (F) (F) (F) NAME REPORTED MEASUREMENT) PERFORMED PERFORMED (LLD) RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS SEDIMENT GAMMA 2 (PC//KG DRY) MN-54 NA <LLD NA 0 C0-58 NA <LLD NA 0 FE-59 NA <LLD NA 0 C0-60 NA <LLD NA 0 ZN-65 NA <LLD NA 0 NB-95 NA <LLD NA 0 ZR-95 NA <LLD NA 0

)>

I CS-134 150 <LLD NA 0 I\)

CS-137 180 <LLD NA 0 BA-140 NA <LLD NA 0 LA-140 NA <LLD NA 0 AIR PARTICULATE GR-B 208 10 14 16 16 Z-13 CONTROL

0 (E-3 PC/ICU.METER) (154/156) (52/52) (52/52) OFFSITE CONTROL 6-30 7-35 7-35 10.0 MILES NW OF SITE GAMMA 16 MN-54 NA <LLD <LLD 0 C0-58 NA <LLD <LLD 0 FE-59 NA <LLD <LLD 0 C0-60 NA <LLD <LLD 0 ZN-65 NA <LLD <LLD 0 NB-95 NA <LLD <LLD 0 ZR-95 NA <LLD <LLD 0 CS-134 10 <LLD <LLD 0 CS-737 10 <LLD <LLD 0 BA-140 NA <LLD <LLD 0 LA-140 NA <LLD <LLD 0 (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE ZION NUCLEAR POWER STATION, 2016 Name of Facility: ZION NUCLEAR POWER STATION DOCKET NUMBER: 50-295 & 50-304 Location of Facility: ZION.IL REPORTING PERIOD: 2016 INDICATOR CONTROL MEDIUM OR REQUIRED LOCATIONS LOCATION LOCATIO~ WITH HIGHEST ANNUAL MEAN (M) NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN(M) MEAN(M) MEAN (M) STATION# NONROUTINE (UNITOF ANALYSIS ANALYSIS OF DETECTION (F) . (F) (F) NAME REPORTED MEASUREMENT) PERFORMED PERFORMED (LLD) RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS VEGETATION GAMMA 7 (PCllKGWET) MN-54 NA <LLD <LLD 0 C0-58 NA <LLD <LLD 0 FE-59 NA <LLD <LLD 0 C0-60 NA <LLD <LLD 0 ZN-65 NA <LLD <LLD 0 NB-95 NA .<LLD <LLD 0 ZR-95 NA <LLD <LLD 0

)> CS-134 60 <LLD <LLD I 0

(,I)

CS-137 80 <LLD <LLD 0 BA-140 NA <LLD <LLD 0 LA-140 NA <LLD <LLD 0 DIRECT RADIATION TLD-QUARTERLY 256 NA 19.8 18.1 41.5 Z-131-1 INDICATOR 0 (MILLl-ROENTGEN/QTR) (232/232) (24/24) (4/4) 13-50 15-21 28-50 0.2MllESWSW (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.

APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHOD

TABLE B-1: Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Zion Nuclear Power Station, 2016 Location Location Description Distance & Direction From Site A. Public Water Z-14 Kenosha Water Works (control) 10.0 miles N Z-15 Lake County Water Works (indicator) 1.4 miles NNW Z-16 Waukegan Water Works (indicator) 6.1 miles S Z-18 Lake Forest Water Works (control) 12.9 miles S B. Air Particulates Z-01 Onsite 1 (indicator) 0.3 miles S Z-02 Onsite 2 (indicator) 0.2 miles W Z-03 Onsite 3 (indicator) 0.2 miles NNW Z-13 Offsite Control 10 miles NW C. Fish Z-26 Lake Michigan Nearsite (indicator) At station Z-27 Lake Michigan Farsite (indicator) 10.1 miles N D. Sediment Z-25 Lake Michigan, Illinois Beach State Park (indicator) 0.2 miles S E. Environmental Dosimetrv - TLD Inner Ring Z-101-1 and -2 0.2 miles N Z-102-1 and -2 0.2 miles NNE Z-103-1 and -2 0.2 miles NE Z-104-1 and-2 0.1 miles ENE Z-105-1 and -2 0.1 miles E Z-106-1 and-2 0.1 miles ESE Z-107-1 and -2 0.1 miles SE Z-108-1 and -2 0.1 miles SSE Z-110-1 and -2 0.2 miles SSW Z-111-1 and -2 0.3 miles SW Z-112-1 and -2 0.7 miles WSW Z-113-1 and -2 0.6 miles W Z-114-1 and -2 0.6 miles WNW Z-115-1 and -2 0.4 miles NW Z-121-1 and -2 0.2 miles NNW Z-124-1 and -2 0.5 miles SW Z-125-1 and -2 0.4 miles SSW Other Z-01-1 and -2 Onsite 1 (indicator) 0.3 miles S Z-02-1 and -2 Onsite 2 (indicator) 0.2 miles W Z-03-1 and -2 Onsite 3 (indicator) 0.2 miles NNW Outer Ring Z-209-1 and -2 5.1 miles S Z-211-1 and -2 4.7 miles SW Z-212-1 and-2 5.1 miles WSW Z-213-1 and -2 5.1 miles W Z-214-1 and-2 4.6 miles WNW Z-215-1 and -2 4.0 miles NW Z-216-1 and -2 Control Z-13-1 thru -6 10 miles NW

TABLE B-2: Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Zion Nuclear Power Station, 2016 Sample Analysis Sampling Method Analytical Procedure Number Medium TSE, TBE-2007 Gamma emitting radioisotope analysis Public Gamma Monthly composite from Water Spectroscopy weekly grab samples. Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy TSE, TBE-2008 Gross Alpha and/or gross beta activity in Public Monthly composite from various matrices Gross Beta Water weekly grab samples.

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

TSE, TBE-2011 Tritium analysis in drinking water by liquid Public Quarterly composite from scintillation Tritium Water weekly grab samples.

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

Semi-annual samples TBE-2007 Gamma emitting radioisotope analysis Gamma Fish collected via Spectroscopy Env. Inc., GS-01 Determination of gamma emitters by gamma electroshocking or other techniques spectroscopy TBE, TBE-2007 Gamma emitting radioisotope analysis Sediment Gamma Semi-annual grab Spectroscopy samples Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy One-week composite of TSE, TBE-2008 Gross Alpha and/or gross beta activity in Air Particulates Gross Beta continuous air sampling various matrices through glass fiber filter Env. Inc., AP-02 Determination of gross alpha and/or gross paper beta in air particulate filters TSE, TBE-2007 Gamma emitting radioisotope analysis Air Gamma Quarterly composite of Particulates Spectroscopy each station Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Quarterly TLDs TLD Thermoluminesce comprised of two CaF Mirion Technologies nee Dosimetry 200 and two LiF 100 LiF 4-chip Harshaw elements.

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Figure B-2 Outer Ring TLD and Fixed Air Sampler Locations of the Zion Nuclear Power Station, 2016

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Sampling Locations Figure 8-3 Fish, Water and Sediment Sampling Locations of the Zion Nuclear Power Station, 2016

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY

Table C-1.1 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of pCi/liter +/- 2 Sigma COLLECTION PERIOD Z-14 Z-15 Z-16 Z-18 01/06/16 - 01/27/16 < 2.0 3.7 +/- 1.8 < 2.0 < 2.0 02/03/16 - 02/24/16 4.7 +/- 1.7 3.1 +/- 1.5 3.2 +/- 1.5 3.3 +/- 1.5 03/02/16 - 03/30/16 3.5 +/- 1.6 2.3 +/- 1.4 3.2 +/- 1.5 2.7 +/- 1.5 04/06/16 - 04/27/16 < 1.6 3.1 +/- 1.5 2.2 +/- 1.4 < 2.0 05/04/16 - 05/25/16 2.8 +/- 1.5 < 2.1 3.4 +/- 1.6 3.3 +/- 1.6 06/01/16 - 06/29/16 2.1 +/- 1.4 < 2.0 < 2.0 < 2.0 07/06/16 - 07/27/16 < 2.5 < 2.5 < 2.5 2.9 +/- 1.9 08/03/16 - 08/31/16 < 2.1 < 2.2 2.4 +/- 1.5 < 2.2 09/07/16 - 09/28/16 3.5 +/- 1.4 2.4 +/- 1.3 2.3 +/- 1.3 3.5 +/- 1.4 10/05/16 - 10/27/16 2.6 +/- 1.5 2.7 +/- 1.5 3.6 +/- 1.8 3.2 +/- 1.6 11/03/16 - 11/30/16 2.8 +/- 1.3 3.7 +/- 1.4 2.7 +/- 1.3 2.9 +/- 1.3 12/07/16 - 12/29/16 2.1 +/- 1.3 3.8 +/- 1.5 2.5 +/- 1.3 2.2 +/- 1.3 MEAN +/- 2 STD DEV 3.0 +/- 1.8 3.1 +/- 1.2 2.8 +/- 1.1 3.0 +/- 0.9 Table C-1.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of pCi/liter +/- 2 Sigma COLLECTION PERIOD Z-14 Z-15 Z-16 Z-18 01/06/16 - 03/30/16 < 197 < 197 < 196 < 192 04/06/16 - 06/29/16 < 182 < 181 < 180 < 184 07/06/16 - 09/28/16 < 182 < 180 < 178 < 181 10/05/16 - 12/29/16 < 197 < 197 < 197 < 194 MEAN THE MEAN AND TWO STANDARD DEV/A TION ARE CALCULATED USING THE POSITIVE VALUES C-1

Table C-1.3 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of pCi/liter +/- 2 Sigma COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-14 01/06/16 - 01/27/16 < 6 < 6 < 11 < 6 < 12 < 5 < 10 < 6 < 4 < 35 < 10 02/03/16 - 02/24/16 < 7 < 6 < 13 < 7 < 13 < 8 < 15 < 6 < 7 < 38 < 16 03/02/16 - 03/30/16 < 6 < 5 < 13 < 9 < 11 < 5 < 11 < 6 < 6 < 53 < 15 04/06/16 - 04127/16 < 8 < 8 < 17 < 7 < 14 < 8 < 14 < 7 < 9 < 59 < 17 05/04/16 - 05/25/16 < 4 < 5 < 11 < 5 < 9 < 6 < 10 < 4 < 5 < 59 < 20 06/01/16 - 06/29/16 < 8 < 7 < 24 < 11 < 15 < 8 < 14 < 7 < 8 < 66 < 15 07/06/16 - 07/27/16 < 2 < 2 < 5 < 2 < 3 < 2 < 4 < 2 < 2 < 25 < 9 08/03/16 - 08/31/16 < 6 < 8 < 14 < 5 < 14 < 9 < 14 < 6 < 7 < 55 < 15 09/07/16 - 09/28/16 < 6 < 8 < 7 < 8 < 12 < 9 < 15 < 6 < 5 < 46 < 14 10/05/16 - 10/27/16 < 8 < 7 < 16 < 6 < 13 < 8 < 15 < 6 < 7 < 63 < 20 11/03/16 - 11/30/16 < 8 < 9 < 14 < 6 < 17 < 9 < 12 < 5 < 8 < 48 < 16 12/07/16 - 12/29/16 < 6 < 6 < 12 < 6 < 13 < 7 < 11 < 5 < 6 < 48 < 16 MEAN

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I l'\J Z-15 01/06/16 - 01/27/16 < 6 < 7 < 13 < 7 < 12 < 8 < 12 < 6 < 6 < 45 < 13 02/03/16 - 02/24/16 < 6 < 7 < 14 < 7 < 17 < 7 < 10 < 6 < 7 < 40 < 15 03/02/16 - 03/30/16 < 7 < 7 < 16 < 7 < 14 < 7 < 14 < 7 < 7 < 46 < 13 04/06/16 - 04/27/16 < 5 < 6 < 10 < 5 < 11 < 5 < 10 < 4 < 6 < 38 < 12 05/04/16 - 05/25/16 < 5 < 5 < 11 < 5 < 11 < 6 < 10 < 5 < 5 < 58 < 16 06/01/16 - 06/29/16 < 5 < 7 < 16 < 7 < 11 < 8 < 13 < 7 < 7 < 46 < 14 07/06/16 - 07/27/16 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 2 < 2 < 25 < 7 08/03/16 - 08/31/16 < 6 < 5 < 16 < 5 < 14 < 8 < 14 < 5 < 6 < 44 < 17 09/07/16 - 09/28/16 < 7 < 6 < 14 < 6 < 14 < 9 < 11 < 7 < 6 < 52 < 16 10/05/16 - 10/27/16 < 5 < 8 < 17 < 7 < 15 < 8 < 15 < 9 < 7 < 77 < 22 11/03/16 - 11/30/16 .< 7 < 7 < 17 < 6 < 13 < 6 < 14 < 7 < 7 < 45 < 17 12/07/16 - 12/29/16 < 6 < 6 < 13 < 6 < 12 < 7 < 13 < 5 < 5 < 55 < 10 MEAN

Table C-1.3 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of pCi/liter +/- 2 Sigma COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-16 1/6/2016 - 01/27/16 < 7 < 7 < 13 < 8 < 13 < 7 < 12 < 6 < 7 < 44 < 14 2/3/2016 - 02/24/16 < 6 < 6 < 11 < 5 < 11 < 6 < 12 < 6 < 6 < 34 < 9 3/2/2016 - 03/30/16 < 8 < 7 < 16 < 8 < 15 < 8 < 15 < 7 < 7 < 49 < 15 4/6/2016 - 04/27/16 < 6 < 6 < 11 < 5 < 10 < 7 < 12 < 6 < 6 < 47 < 15 5/4/2016 - 05/25/16 < 4 < 6 < 10 < 3 < 8 < 5 < 10 < 4 < 5 < 54 < 18 06/01 /16 - 06/29/16 < 4 < 7 < 14 < 5 < 11 < 6 < 10 < 5 < 6 < 35 < 10 07/06/16 - 07/27/16 < 2 < 2 < 6 < 2 < 4 < 3 < 5 < 2 < 2 < 31 < 9 08/03/16 - 08/31/16 < 6 < 6 < 14 < 7 < 10 < 9 < 14 < 6 < 7 < 49 < 15 09/07/16 - 09/28/16 < 6 < 8 < 19 < 6 < 15 < 8 < 15 < 7 < 7 < 45 < 14 10/05/16 - 10/27/16 < 7 < 6 < 14 < 7 < 13 < 8 < 14 < 8 < 7 < 53 < 30 11/03/16 - 11/30/16 < 7 < 7 < 20 < 8 < 20 < 9 < 14 < 9 < 9 < 41 < 15 12/07/16 - 12/29/16 < 8 < 7 < 16 < 7 < 14 < 9 < 14 < 8 < 8 < 72 < 19 MEAN C')

I CJJ Z-18 01/06/16 - 01/27/16 < 6 < 3 < 20 < 6 < 15 < 10 < 14 < 6 < 7 < 55 < 17 02/03/16 - 02/24/16 < 8 < 7 < 16 < 7 < 15 < 10 < 11 < 7 < 9 < 40 < 12 03/02/16 - 03/30/16 < 2 < 2 < 5 < 2 < 4 < 3 < 4 < 2 < 2 < 16 < 5 04/06/16 - 04/27/16 < 5 < 7 < 14 < 8 < 15 < 6 < 14 < 6 < 6 < 42 < 11 05/04/16 - 05/25/16 < 2 < 3 < 6 < 2 < 5 < 3 < 5 < 2 < 2 < 27 < 9 06/01/16 - 06/29/16 < 6 < 6 < 13 < 8 < 12 < 7 < 12 < 6 < 7 < 42 < 15 07/06/16 - 07/27/16 < 2 < 2 < 5 < 2 < 4 < 2 < 4 < 2 < 2 < 25 < 8 08/03/16 - 08/31 /16 < 6 < 7 < 14 < 6 < 11 < 6 < 12 < 5 < 7 < 37 < 13 09/07/16 - 09/28/16 < 7 < 9 < 16 < 7 < 11 < 8 < 13 < 7 < 8 < 49 < 12 10/05/16 - 10/27/16 < 6 < 6 < 14 < 7 < 13 < 8 < 15 < 6 < 7 < 60 < 20 11/03/16 - 11/30/16 < 7 < 7 < 16 < 7 < 16 < 8 < 14 < 8 < 8 < 50 < 17 12/07/16 - 12/29/16 < 4 < 6 < 13 < 6 < 10 < 7 < 11 < 6 < 6 < 53 < 18 MEAN

Table C-11.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of pCi/kg Wet+/- 2 sigma COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-26 (Predator)

Northern Pike 05/24/16 < 43 < 37 < 101 < 36 < 101 < 34 < 68 < 45 < 50 < 236 < 65 White Sucker 05/24/16 < 53 < 45 < 125 < 47 < 111 < 55 < 85 < 52 < 50 < 229 < 51 Brown Trout 10/27/16 < 81 < 73 < 161 < 72 < 119 < 75 < 143 < 71 < 83 < 467 < 114 Common Carp 10/27/16 < 42 < 41 < 80 < 44 < 85 < 47 < 61 < 32 < 36 < 293 < 96 MEAN Z-27 (Predator)

Burbot 05/13/16 < 39 < 41 < 108 < 34 < 82 < 44 < 61 < 35 < 46 < 347 < 103 Lake Trout 05/13/16 < 39 < 44 < 103 < 36 < 90 < 48 < 87 < 38 < 48 < 395 < 72 0 Burbot 10/26/16 < 72 < 76 < 174 < 68 < 153 < 78 < 139 < 67 < 69 < 510 < 173

~

Lake Trout 10/26/16 < 59 < 59 < 119 < 54 < 151 < 61 < 103 < 83 < 63 < 375 < 117 MEAN

Table C-111.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of pCi/kg Dry + 2 sigma COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-25 05/12/16 < 37 < 30 < 85 < 29 < 83 < 40 < 65 < 32 < 31 < 211 < 46 10/19/16 < 45 < 46 < 104 < 44 < 101 < 64 < 92 < 40 < 46 < 267 < 83 MEAN

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Table C-IV.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of E-3 pCi/cu meter+/- 2 Sigma COLLECTION GROUP I I GROUP II PERIOD Z-01 Z-02 Z-03 Z-13 12/30/15 - 01/06/16 27 +/- 5 25 +/- 5 24 +/- 5 25 +/- 5 01/06/16 - 01/13/16 17 +/- 4 15 +/- 4 16 +/- 4 19 +/- 4 01/13/16 - 01/20/16 19 +/- 4 20 +/- 6 21 +/- 4 17 +/- 4 01/20/16 - 01/27/16 15 +/- 4 11 +/-4 12 +/- 4 15 +/-4 01/27/16 - 02/03/16 14 +/- 4 13 +/- 3 18 +/- 4 14 +/- 4 02/03/16 - 02/10/16 14 +/- 4 11 +/- 4 17 +/- 4 15 +/- 4 02/10/16 - 02/17/16 15 +/- 4 12 +/- 4 15 +/- 4 19 +/- 4 02/17/16 - 02/24/16 15 +/- 4 11 +/- 4 12 +/- 4 14 +/- 4 02/24/16 - 03/02/16 20 +/- 4 13 +/- 4 15 +/- 4 16 +/- 4 03/02/16 - 03/09/16 14 +/- 4 10 +/- 4 11 +/- 4 12 +/- 4 03/09/16 - 03/16/16 14 +/- 4 9 +/- 3 11 +/- 3 14 +/- 4 03/16/16 - 03/22/16 7 +/- 4 6 +/- 4 9 +/- 4 7 +/- 4 03/22/16 - 03/30/16 10 +/- 3 8 +/- 3 12 +/- 3 9 +/- 3 03/30/16 - 04/06/16 13 +/- 4 11 +/-A 12 +/- 4 16 +/- 4 04/06/16 - 04/13/16 14 +/- 4 10 +/- 3 11 +/- 4 13 +/- 4 04/13/16 - 04/20/16 19 +/- 4 12 +/- 4 17 +/- 4 17 +/- 4 04/20/16 - 04/27/16 14 +/- 4 14 +/- 4 15 +/- 4 15 +/- 4 04/27/16 - 05/04/16 9 +/- 3 9 +/- 3 12 +/- 4 14 +/- 4 05/04/16 - 05/12/16 10 +/- 3 7 +/- 3 6 +/- 3 8 +/- 3 05/12/16 - 05/18/16 11 +/- 4 7 +/- 3 9 +/- 4 11 +/- 4 05/18/16 - 05/25/16 19 +/- 4 16 +/- 4 20 +/- 5 17 +/- 4 05/25/16 - 06/01/16 13 +/- 4 10 +/- 4 14 +/- 4 11 +/-4 06/01/16 - 06/09/16 11 +/- 3 9 +/- 3 9 +/- 3 9 +/- 3 06/09/16 - 06/15/16 15 +/- 4 10 +/- 4 12 +/- 4 11 +/- 4 06/15/16 - 06/22/16 13 +/- 4 10 +/- 4 13 +/- 4 15 +/-4 06/22/16 - 06/29/16 13 +/- 4 11 +/- 3 15 +/- 4 15 +/- 4 06/29/16 - 07/06/16 14 +/- 4 12 +/- 4 13 +/- 4 13 +/-4 07/06/16 - 07/14/16 16 +/- 3 13 +/- 3 14 +/- 3 15 +/- 3 07/14/16 - 07/20/16 11 +/- 4 8 +/- 4 11 +/- 4 11 +/-4 07/20/16 - 07/27/16 17 +/- 4 12 +/- 4 18 +/- 4 16 +/- 4 07/27/16 - 08/03/16 14 +/- 4 11 +/- 4 12 +/- 4 15 +/- 4 08/03/16 - 08/10/16 16 +/- 4 15 +/- 3 21 +/- 4 19 +/- 4 08/10/16 - 08/18/16 17 +/- 4 14 +/- 4 19 +/- 4 18 +/- 4 08/18/16 - 08/24/16 9 +/- 4 7 +/- 4 11 +/- 5 7 +/- 4 08/24/16 - 08/31/16 17 +/- 4 15 +/- 4 11 +/- 4 14 +/- 4 08/31/16 - 09/07/16 13 +/- 4 13 +/- 4 17 +/- 4 12 +/- 4 09/07/16 - 09/14/16 14 +/- 4 13 +/- 4 13 +/- 4 14 +/- 4 09/14/16 - 09/21/16 18 +/- 4 14 +/- 4 18 +/- 4 19 +/- 4 09/21/16 - 09/28/16 16 +/- 4 14 +/- 4 18 +/- 4 21 +/- 4 09/28/16 - 10/05/16 11 +/- 4 8 +/- 3 9 +/- 3 13 +/- 4 10/05/16 - 10/12/16 24 +/- 5 18 +/- 4 23 +/- 5 23 +/- 5 10/12/16 - 10/19/16 16 +/- 4 10 +/- 3 12 +/- 4 16 +/- 4 10/19/16 - 10/26/16 9 +/- 3 < 6 < 6 7 +/- 5 10/27/16 - 11/03/16 18 +/- 4 17 +/- 4 17 +/- 4 19 +/- 4 11/03/16 - 11/09/16 24 +/- 5 22 +/- 5 30 +/- 6 35 +/- 6 11/09/16 - 11/16/16 17 +/- 4 19 +/- 4 20 +/- 4 27 +/- 5 11/16/16 - 11/23/16 18 +/- 4 18 +/- 5 19 +/- 4 20 +/- 5 11/23/16 - 11/30/16 25 +/- 5 18 +/- 4 22 +/- 4 25 +/- 5 11/30/16 - 12/07/16 13 +/- 4 16 +/- 4 15 +/- 4 15 +/- 4 12/07/16 - 12/14/16 18 +/- 4 14 +/-4 22 +/- 4 19 +/-4 12/14/16 - 12/20/16 20 +/- 5 18 +/- 4 17 +/- 5 18 +/- 5 12/20/16 - 12/29/16 20 +/- 4 16 +/- 3 18 +/- 4 17 +/-3 MEAN +/- 2 STD DEV 15 +/- 8 13 +/- 8 15 +/- 9 16 +/- 11 THE MEAN AND TWO STANDARD DEV/A TION ARE CAL GULA TED USING THE POSITIVE VALUES C-6

Table C-IV.2 Monthly and Yearly Mean Values of Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of E~3 pCi/cu meter+/- 2 Sigma GROUP I - ONSITE LOCATIONS GROUP II - OFFSITE CONTROL LOCATION COLLECTION MIN MAX MEAN COLLECTION MIN MAX MEAN PERIOD +/-2SD PERIOD +/-2SD 12/30/15 - 02/03/16 11 27 18 +/- 10 12/30/15 - 02/03/16 14 25 18 +/- 8 02/03/16 - 03/02/16 11 20 14 +/- 5 02/03/16 - 03/02/16 14 19 16 +/- 4 03/02/16 - 03/30/16 6 14 10 +/- 5 03/02/16 - 03/30/16 7 14 10 +/- 6 03/30/16 - 05/04/16 9 19 13 +/- 6 03/30/16 - 05/04/16 13 17 15 +/- 4 05/04/16 - 06/01/16 6 20 12 +/- 9 05/04/16 - 06/01/16 8 17 12 +/- 8 06/01/16 - 06/29/16 9 15 12 +/- 4 06/01/16 - 06/29/16 9 15 13 +/- 6 06/29/16 - 08/03/16 8 18 13 +/- 5 06/29/16 - 08/03/16 11 16 14 +/- 4 08/03/16 - 08/31/16 7 21 14 +/- 8 08/03/16 - 08/31/16 7 19 14 +/- 10 08/31/16 - 09/28/16 13 18 15 +/- 5 08/31/16 - 09/28/16 12 21 16 +/- 9 09/28/16 - 11/03/16 8 24 15 +/- 11 09/28/16 - 11 /03/16 7 23 16 +/- 12 11/03/16 - 11/30/16 17 30 21 +/- 7 11/03/16 - 11/30/16 20 35 27 +/- 13 11/30/16 - 12/29/16 13 22 17 +/- 5 11/30/16 - 12/29/16 15 19 17 +/- 3 12/30/15 - 12/29/16 6 30 14 +/- 9 12/30/15 - 12/29/16 7 35 16 +/- 11 C-7

Table C-IV.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Zion Nuclear Power Station, 2016 Results in Units of E-3 pCi/cu meter + 2 Sigma COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-01 12/30/15 - 03/30/16 < 3 < 4 < 10 < 3 < 6 < 3 < 5 < 3 < 3 < 70 < 16 03/30/16 - 06/29/16 < 2 < 2 < 6 < 2 < 4 < 3 < 4 < 2 < 2 < 35 < 16 06/29/16 - 09/28/16 < 2 < 2 < 7 < 3 < 7 < 3 < 3 < 2 < 2 < 49 < 15 09/28/16 - 12/29/16 < 2 < 1 < 4 < 2 < 4 < 2 < 3 < 2 < 2 < 8 < 3 MEAN Z-02 12/30/15 - 03/30/16 < 3 < 3 < 8 < 2 < 7 < 3 < 6 < 3 < 2 < 59 < 18 03/30/16 - 06/29/16 < 2 < 2 < 7 < 2 < 5 < 2 < 3 < 2 < 2 < 49 < 22 06/29/16 - 09/28/16 < 2 < 3 < 7 < 3 < 4 < 3 < 5 < 3 < 2 < 50 < 27 09/28/16 - 12/29/16 < 3 < 4 < 11 < 4 < 7 < 4 < 7 < 3 < 3 < 14 < 6 MEAN 0I Z-03 12/30/15 - 03/30/16 < 4 < 5 < 10 < 3 < 10 < < < < 86 < 32 5 8 5 < 3 co 03/30/16 - 06/29/16 < 3 < 4 < 9 < 3 < 7 < 3 < 7 < 3 < 3 < 47 < 26 06/29/16 - 09/28/16 < 3 < 4 < 9 < 3 < 8 < 4 < 7 < 4 < 3 < 72 < 17 09/28/16 - 12/29/16 < 2 < 2 < 4 < 3 < 5 < 2 < 4 < 2 < 2 < 9 < 4 MEAN Z-13 12/30/15 - 03/30/16 < 2 < 3 < 9 < 2 < 6 < 3 < 5 < 2 < 2 < 58 < 20 03/30/16 - 06/29/16 < 5 < 5 < 12 < 4 < 8 < 6 < 7 < 3 < 3 < 83 < 37 06/29/16 - 09/28/16 < 2 < 3 < 9 < 3 < 8 < 3 < 5 < 3 < 3 < 63 < 25 09/28/16 - 12/29/16 < 2 < 2 < 5 < 3 < 5 < 2 < 5* < 3 < 2 < 12 < 4 MEAN

Table C-V.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF ZION NUCLEAR POWER STATION, 2016 RESULTS IN UNITS OF PC/KG WET + 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Z-CONTROL Carrots 09/01/16 < 15 < 17 < 37 < 19 < 39 < 19 < 29 < 14 < 15 < 112 < 38 Potatoes 09/01/16 < 18 < 14 < 35 < 18 < 41 < 16 < 33 < 15 < 16 < 107 < 25 Cabbage 09/08/16 < 16 < 16 < 41 < 15 < 41 < 17 < 36 < 16 < 19 < 102 < 19 MEAN Z-QUAD 3 Cabbage 09/01/16 < 14 < 14 < 33 < 13 < 32 < 16 < 25 < 13 < 12 < 92 < 24 Potatoes 09/01/16 < 10 < 11 < 25 < 8 < 26 < 14 < 22 < 10 < 10 < 77 < 19

(") MEAN I

cc Z-QUAD4 Cabbage 09/01/16 < 20 < 21 < 40 < 25 < 36 < 25 < 35 < 15 < 17 < 137 < 45 Potatoes 09/01/16 < 18 < 18 < 40 < 15 < 46 < 21 < 30 < 24 < 17 < 108 < 32 MEAN

Table C-Vl.1 . Quarterly TLD Results for Zion Nuclear Power Station, 2016 Results in Units of Milli-Roentgen/Quarter+/- 2 Standard Deviations STATION MEAN CODE +/-2 S.D. JAN-MAR APR-JUN JUL- SEP OCT- DEC Z-01 29 +/- 12 36 30 25 23 Z-02 18 +/-7 22 18 17 14 Z-03 18 +/-4 18 20 17 15 Z-13 19 +/-3 19 19 20 17 Z-101 17 +/-5 18 20 16 14 Z-102 19 +/-5 21 19 19 15 Z-103 16 +/-4 18 18 15 14 Z-104 16 +/-2 17 17 16 15 Z-105 18 +/-4 20 19 18 15 Z-106 18 +/-5 20 20 17 15 Z-107 18 +/-6 22 19 16 15 Z-108 21 +/-3 22 21 20 19 Z-109 33 +/- 23 48 35 29 20 Z-112 18 +/-3 19 19 18 16 Z-113 17 +/-4 17 18 18 14 Z-114 17 +/-3 17 19 17 15 Z-115 18 +/-3 17 19 19 16 Z-121 16 +/-5 17 19 15 13 Z-124 18 +/-4 18 19 19 15 Z-125 19 +/-3 20 19 19 17 Z-129 16 +/-5 17 19 14 14 Z-130 20 +/-5 22 22 19 17 Z-131 42 +/- 20 48 50 40 28 Z-209 18 +/-5 18 17 21 15 Z-211 21 +/-4 24 20 21 19 Z-212 22 +/-5 23 25 21 19 Z-213 23 +/-6 25 23 24 18 Z-214 19 +/-3 19 19 21 17 Z-215 22 +/-4 23 23 23 19 Z-216 18 +/-3 18 20 19 16 C-10

Table C-Vl.2 MEAN QUARTERLY TLD RESULTS FOR INNER RING, OUTER RING, SPECIAL INTEREST, AND CONTROL STATIONS FOR ZION NUCLEAR POWER STATION, 2016 Results in Units of Milli-Roentgen/Quarter+/- 2 Standard Deviations of the Station Data COLLECTION INNER RING OUTER RING OTHER CONTROL PERIOD +/- 2 S.D.

JAN-MAR 23 +/- 19 20 +/- 5 17 +/- 2 18 +/- 2 APR-JUN 22 +/- 14 21 +/- 5 19 +/- 2 19 +/- 2 JUL-SEP 20 +/- 12 22 +/- 5 18 +/- 3 20 +/- 2 OCT-DEC 17 +/- 8 18 +/- 3 15 +/- 2 16 +/- 2 Table C-Vl.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR ZION NUCLEAR POWER STATION, 2016 RESULTS*IN UNITS OF MILLI-ROENTGEN/QUARTER SAMPLES PERIOD PERIOD PERIOD MEAN LOCATION ANALYZED MINIMUM MAXIMUM +/- 2 S.D.

INNER RING 144 13 50 20 +/- 15 OUTER RING 56 15 25 20 +/- 5 SPECIAL INTEREST 32 14 21 17 +/- 4 CONTROL 24 15 21 18 +/- 4 INNER RING STATIONS - Z-01, Z-02, Z-03, Z-101, Z-102-1, Z-103-1, Z-104, Z-105, Z-106, Z-107, Z-108, Z-109, Z-121, Z-124, Z-125, Z-129, Z130, Z-131 SPECIAL INTEREST STATIONS - Z-112, Z-113, Z-114, Z-115 OUTER RING STATIONS - Z-209, Z-211, Z-212, Z-213, Z-214, Z-215, Z-216 CONTROL STATION - Z-13 C-11

FIGURE C-1*

PUBLIC WATER - GROSS BETA - STATIONS Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2016 Z-14 (C) Kenosha Wate Works 5.0 4.0 3.0

..J i3c..

2.0 1.0 0.0 - - - - - - - . . . , . - - - - - - - . - - - - - - . - - - - - r - - - - - - - - r 01-26-00 06-17-03 11-06-06 03-28-10 08-17-13 01-06-17 Z-15 Lake County Water Works 7.0 6.0 5.0 4.0 s0 c.. 3.0 2.0 1.0 0.0 +-=-------1-----------------

01-26-00 06-17-03 11-06-06 03-28-10 08-17-13 01-06-17 DUE TO VENDOR CHANGE IN 2005, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-12

FIGURE C-2 PUBLIC WATER - GROSS BETA- STATIONS Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2016 Z-16 Waukegan Water Works 10.0 9.0 8.0 7.0 6.0

! 5.0 0c..

4.0 3.o ~m~~~

2.0 1.0 0.0 +------1------------------+-------f 01-26-00 06-17-03 11-06-06 03-28-10 08-17-13 01-06-17 Z-18 (C) Lake Forest Water Works 10.0 9.0 8.0 7.0 6.0

! 5.0 0

c..

4.0 3.0 2.0 1.0 0.0 01-26-00 06-17-03 11-06-06 03-28-10 08-17-13 01-06-17 DUE TO VENDOR CHANGE IN 2005, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-13

FIGURE C-3 PUBLIC WATER -TRITIUM - STATION Z-14 AND Z-15 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2016 Z-14 (C) Kenosha Water Works 300 200 0c.

100 o--~~~+--~~--+~~~-+-~~~--~~---l 01-01-00 05-27-03 10-20-06 03-15-10 08-08-13 01-01-17 Z-15 Lake County Water Works 300 250 200

! 150 0c.

100 50 0

03-29-00 08-05-03 12-11-06 04-18-10 08-24-13 12-30-16 DUE TO VENDOR CHANGE IN 2005, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-14

FIGURE C-4 PUBLIC WATER -TRITIUM - STATION Z-16 AND Z-18 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2016 Z-16 Waukegan Water Works 250 200 150 100 50 0+-~---<>-~~~~-+-~~~-+-~~~+-~~---1 03-29-00 08-05-03 12-11-06 04-18-10 08-24-13 12-30-16 Z-18 (C) Lake Forest Water Works 250 200 150 C3 c.

100 50 0+-"-~~---+~~~-+-~~~-+-~~~+-~~---1 03-29-00 08-05-03 12-11-06 04-18-10 08-24-13 12-30-16 DUE TO VENDOR CHANGE IN 2005, <VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-15

FIGURE C-5 AIR PARTICULATES - GROSS BETA - STATIONS Z-01 AND Z-02 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2016 Z-01 Onsite No. 1, Southside 60.0 50.0

~ 40.0 0

c. 30.0 M

0

~

20.0 10.0 0.0 + - - - - + - - - - - + - - - - - + - - - - - + - - - - - I 01-05-00 05-30-03 10-22-06 03-16-10 08-08-13 12-31-16 Z-02 Onsite No. 2, Westside 70.0 60.0 50.0 M

§ 0 40.0 c.

i 30.0 w

0 T'" 20.0 10.0 0.0 + - - - - + - - - - - + - - - - - - - - - - - - 1 01-05-00 05-30-03 10-22-06 03-16-10 08-08-13 12-31-16 C-16

FIGURE C-6 AIR PARTICULATES - GROSS BETA- STATIONS Z-03 COLLECTED IN THE VICINITY OF ZNPS, 2000 - 2016 Z-03 Onsite No. 3, Northside 90.0 80.0 70.0 C")

60.0

§

(..) 50.0 c.

I")

0 40.0 w 30.0 0

20.0 10.0 0.0 01-05-00 05-30-03 10-22-06 03-16-10 08-08-13 12-31-16 AIR PARTICULATES - GROSS BETA- STATION Z-13 COLLECTED IN THE VICINITY OF ZNPS, 2013 - 2016 Z-13 Offsite Control 50.0 40.0 I")

.§ 30.0 0c.

I")

i: 20.0 0

10.0 0.0 + - - - - - - - - - - - - - + - - - - - - - +

04-10-13 03-16-14 02-19-15 01-25-16 12-30-16 C-17

APPENDIX D INTER-LABORATORY COMPARISON PROGRAM

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE 1OF3)

Identification Reported Known Ratio (c)

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

March 2016 E11476 Milk Sr-89 pCi/L 97 86.7 1.12 A Sr-90 pCi/L 15 11.4 1.32 N(2)

E11477 Milk 1-131 pCi/L 85.9 82.2 1.05 A Ce-141 pCi/L 106 98.4 1.08 A Cr-51 pCi/L 255 243 1.05 A Cs-134 pCi/L 134 130 1.03 A Cs-137 pCi/L 174 161 1.08 A Co-58 pCi/L 123 117 1.05 A Mn-54 pCi/L 141 117 1.21 w Fe-59 pCi/L 152 131 1.16 A Zn-65 pCi/L 193 179 1.08 A Co-60 pCi/L 259 244 1.06 A E11479 AP Ce-141 pCi 69 81.1 0.85 A Cr-51 pCi 242 201 1.20 w Cs-134 pCi 98.1 107.0 0.92 A Cs-137 pCi 136 133 1.02 A Co-58 pCi 91.9 97 0.95 A Mn-54 pCi 98.6 96.2 1.02 A Fe-59 pCi 98.8 108 0.91 A Zn-65 pCi 131 147 0.89 A Co-60 pCi 209 201 1.04 A E11478 Charcoal 1-131 pCi 85.3 88.3 0.97 A E11480 Water Fe-55 pCi/L 1800 1666 1.08 A June 2016 E11537 Milk Sr-89 pCi/L 94.4 94.4 1.00 A Sr-90 pCi/L 13.4 15.4 0.87 A E11538 Milk 1-131 pCi/L 96.8 94.5 1.02 A Ce-141 pCi/L 129 139 0.93 A Cr-51 pCi/L 240 276 0.87 A Cs-134 pCi/L 157 174 0.90 A Cs-137 pCi/L 117 120 0.98 A Co-58 pCi/L 131 142 0.92 A Mn-54 pCi/L 128 125 1.02 A Fe-59 pCi/L 132 122 1.08 A Zn-65 pCi/L 235 235 1.00 A Co-60 pCi/L 169 173 0.98 A June 2016 E11539 Charcoal 1-131 pCi 86.1 89.4 0.96 A E11540 AP Ce-141 pCi 105 99.8 1.05 A Cr-51 pCi 216 198.0 1.09 A Cs-134 pCi. 113 125 0.90 A Cs-137 pCi 94.5 86.6 1.09 A Co-58 pCi 101 102 0.99 A Mn-54 pCi 88.8 90.2 0.98 A*

Fe-59 pCi 82 87.5 0.94 A Zn-65 pCi 174 169 1.03 A Co-60 pCi 143 124 1.15 A E11541 Water Fe-55 pCi/L 164 186 0.88 A D-1 I

_J

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE 20F 3)

Identification Reported Known Ratio (c)

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

September 2016 E11609 Milk Sr-89 pCi/L 90 90.9 0.99 A Sr-90 pCi/L 13.3 13.7 0.97 A E11610 Milk 1-131 pCi/L 80.4 71.9 1.12 A Ce-141 pCi/L 81.3 93 0.87 A Cr-51 pCi/L 198 236 0.84 A Cs-134 pCi/L 122 136 0.90 A Cs-137 pCi/L 119 119 1.00 A Co-58 pCi/L 92.2 97.4 0.95 A Mn-54 pCi/L 156 152 1.03 A Fe-59 pCi/L 97.5 90.6 1.08 A Zn-65 pCi/L 189 179 1.06 A Co-60 pCi/L 131 135 0.97 A E11611 Charcoal 1-131 pCi 52.4 59.9 0.87 A E11612 AP Ce-141 pCi 67.5 63.6 1.06 A Cr-51 pCi 192 161.0 1.19 A Cs-134 pCi 91.4 92.6 0.99 A Cs-137 pCi 93.9 80.8 1.16 A Co-58 pCi 66 66.4 0.99 A Mn-54 pCi 104 104 1.00 A Fe-59 pCi 60.5 61.8 0.98 A Zn-65 pCi 140 122 1.15 A Co-60 pCi 119 91.9 1.29 w E11613 Water Fe-55 pCi/L 1990 1670 1.19 A E11614 Soil Ce-141 pCi/g 0.153 0.175 0.87 A Cr-51 pCi/g 0.482 0.441 1.09 A Cs-134 pCi/g 0.270 0.254 1.06 A Cs-137 pCi/g 0.313 0.299 1.05 A Co-58 pCi/g 0.177 0.182 0.97 A Mn-54 pCi/g 0.340 0.285 1.19 A Fe-59 pCi/g 0.206 0.17 1.21 w Zn-65 pCi/g 0.388 0.335 1.16 A Co-60 pCi/g 0.284 0.252 1.13 A December 2016 E11699 Milk Sr-89 pCi/L 95 74.2 1.28 w Sr-90 pCi/L 14.7 10 1.47 N(3)

E11700 Milk 1-131 pCi/L 97.5 97.4 1.00 A Ce-141 pCi/L 136 143 0.95 A Cr-51 pCi/L 247 280 0.88 A Cs-134 pCi/L 164 178 0.92 A Cs-137 pCi/L 120 126 0.95 A Co-58 pCi/L 139 146 0.95 A Mn-54 pCi/L 126 129 0.98 A Fe-59 pCi/L 114 125 0.91 A Zn-65 pCi/L 237 244 0.97 A Co-60 pCi/L 168 178 0.94 A E11701 Charcoal 1-131 pCi 95.6 98 0.98 A D-2

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN.ENGINEERING ENVIRONMENTAL SERVICES (PAGE3 OF 3)

Identification Reported Known Ratio (c)

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

December 2016 E11702 AP Ce-141 pCi 91.7 97.7 0.94 A Cr-51 pCi 210 192.0 1.09 A Cs-134 pCi 122 122 1.00 A Cs-137 pCi 93.9 86.4 1.09 A Co-58 pCi 92 100 0.92 A Mn-54 pCi 93.7 88.5 1.06 A Fe-59 pCi 84.9 84.5 1.00 A Zn-65 pCi 176 167 1.05 A Co-60 pCi 151 122 1.24 w E11702 AP Sr-89 pCi 79.1 92 0.86 A Sr-90 pCi 10 12.5 0.80 A E11703 Water Fe-55 pCi/L 2180 *1000 1.21 w (a) Teledyne Brown Engineering reported result.

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

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

(d) Analytics evaluation based on TBE internal QC limits: A= Acceptable, reported result falls within ratio limits of0.80-1.20.

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.

(2) NCR 16-26 was initiated (3) NCR 16-35 was initiated D-3

TABLE D-2 DOE's MIXED ANALYTE PERFORMANCE EVALUATION PROGRAM (MAPEP)

TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE 1OF1)

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

March 2016 16-MaW34 Water Am-241 Bq/L 0.008 (1) A Ni-63 Bq/L 12.4 12.3 8.6-16.0 A Pu-238 Bq/L 1.4900 1.2440 0.871-1.617 A Pu-239/240 Bq/L 0.729 0.641 0.449-0.833 A 16-MaS34 Soil Ni-63 Bq/kg 1140 1250.0 875-1625 A Sr-90 Bq/kg 8.15 (1) A 16-RdF34 AP U-234/233 Bq/sample 0.1620 0.1650 0.116-0.215 A U-238 Bq/sample 0.163 0.172 0.120-0.224 A 16-GrF34 AP Gr-A Bq/sample 0.608 1.20 0.36-2.04 A Gr-B Bq/sample 0.8060 0.79 0.40-1.19 A 16-RdV34 Vegetation Cs-134 Bq/sample 10.10 10.62 7.43-13.81 A Cs-137 Bq/sample 6.0 5.62 3.93-7.31 A Co-57 Bq/sample 13.3000 11.8 8.3-15.3 A Co-60 Bq/sample 0.013 (1) A Mn-54 Bq/sample 0.0150 (1) A Sr-90 Bq/sample 0.301 (1) N(4)

Zn-65 Bq/sample 10.500 9.6 6.7-12.5 A September 2016 16-MaW35 Water Am-241 Bq/L 0.626 0.814 .570-1058 w Ni-63 Bq/L 12.4 17.2 12.0-22.4 A Pu-238 Bq/L 1.23 1.13 0.79-1.47 w Pu-239/240 Bq/L 0.0318 0.013 (1) A 16-MaS35 Soil Ni-63 Bq/kg 724 990 693-1287 A Sr-90 Bq/kg 747 894 626-1162 A 16-RdF35 AP U-234/233 Bq/sample 0.160 0.15 0.105-0.195 A U-238 Bq/sample 0.157 0.156 0.109-0.203 A 16-RdV35 Vegetation Cs-134 Bq/sample -0.103 (1) A Cs-137 Bq/sample 5.64 5.54 3.88-7.20 A Co-57 Bq/sample 7.38 6.81 4.77-8.85 A Co-60 Bq/sample 4.81 4.86 3.40-6.32 A Mn-54 Bq/sample 7.4 7.27 5.09-9.45 A Sr-90 Bq/sample 0.774 0.80 0.56-1.04 A Zn-65 Bq/sample 5.46 5.4 3.78-7.02 A (1) False positive test.

(a) Teledyne Brown Engineering reported result.

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

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

(4)NCR 16-14 was initiated D-4

TABLE D-3 ERA ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE 1OF1)

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

May 2016 RAD-105 Water Sr-89 pCi/L 48.9 48.2 37.8- 55.6 A Sr-90 pCi/L 25.0 28.5 20.7-33.1 A 8a-133 pCi/L 53.1 58.8 48.7 - 64.9 A Cs-134 pCi/L 40.9 43.3 34.6-47.6 A Cs-137 pCi/L 84.8 78.4 70.6 - 88.9 A Co-60 pCi/L 108 102 91.8-114 A Zn-65 pCi/L 226 214 193 - 251 A Gr-A pCi/L 38.9 62.7 32.9 - 77.8 A Gr-8 pCi/L 41.9 39.2 26.0 -46.7 A 1-131 pCi/L 24.1 26.6. 22.1 - 31.3 A U-Nat pCi/L 4.68 4.64 3.39 - 5.68 A H-3 pCi/L 7720 7840 6790- 8620 A November 2016 RAD-107 Water Sr-89 pCi/L 43.0 43.3 33.4-50.5 A Sr-90 pCi/L 30.0 33.6 24.6-38.8 A 8a-133 pCi/L 47.8 54.9 45.4-60.7 A Cs-134 pCi/L 72.9 81.8 67.0-90.0 A Cs-137 pCi/L 189 210 189-233 A Co-60 pCi/L 58.4 64.5 58.0-73.4 A Zn-65 pCi/L 243 245 220-287 A Gr-A pCi/L 37.2 68.4 35.9-84.5 A Gr-8 pCi/L 35.1 33.9 22.1-41.6 A 1-131 pCi/L 23.5 26.3 21.9-31.0 A U-Nat pCi/L 49.2 51.2 41.6-56.9 A H-3 pCi/L 918 9820 8540-10800 N(5}

MRAD-25 AP Gr-A pCi/Filter 56.8 71.2 23.9-111 A (a) Teledyne Brown Engineering reported result.

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

volumetric measurements made during standard preparation.

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

(5) NCR 16-34 was initiated D-5

TABLE D-4 ERA STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM 3 MRAD Study, ENVIRONMENTAL, INC., 2016 Concentration a Laboratory ERA Control Lab Code b Date Analysis Result Result Limits Acceptance ERAP-1101 3/14/2016 Am-241 37.3 45.9 28.3 - 62.1 Pass ERAP-1101 3/14/2016 Co-60 637 623 482 - 778 Pass ERAP-1101 3/14/2016 Cs-134 251 304 193 - 377 Pass ERAP-1101 3/14/2016 Cs-137 1,273 1,150 864 -1,510 Pass ERAP-1101 3/14/2016 Fe-55 < 162 126 39.1 - 246 Pass ERAP-1101 3/14/2016 Mn-54 <2.64 < 50.0 0.00 - 50.0 Pass ERAP-1101 3/14/2016 Pu-238 68.0 70.5 48.3 - 92.7 Pass ERAP-1101 3/14/2016 Pu-239/240 54.1 54.8 39.70 - 71.60 Pass ERAP-1101 3/14/2016 Sr-90 139 150 73.3 - 225.0 Pass ERAP-1101 3/14/2016 U-233/234 59.3 64.8 40.2 - 97.7 Pass ERAP-1101 3/14/2016 U-238 55.5 64.2 41.5 - 88.8 Pass ERAP-1101 3/14/2016 Zn-65 428 356 255 - 492 Pass ERAP-1101 3/14/2016 Gr. Alpha 98.0 70.1 23.5 -109 Pass ERAP-1101 3/14/2016 Gr. Beta 78.6 54.4 34.4 - 79.3 Pass ERS0-1105 3/14/2016 Am-241 1,030 1,360 796 -1,770 Pass ERS0-1105 3/14/2016 Ac-228 1,540 1,240 795 - 1,720 Pass ERS0-1105 3/14/2016 Bi-212 1,550 1,240 330 - 1,820 Pass ERS0-1105 3/14/2016 Bi-214 3,100 3,530 2,130 - 5,080 Pass ERS0-1105 3/14/2016 Co-60 5,600 5,490 3,710 - 7,560 Pass ERS0-1105 3/14/2016 Cs-134 3,030 3,450 2,260 - 4, 140 Pass ERS0-1105 3/14/2016 Cs-137 4,440 4,310 3,300 - 5,550 Pass ERS0-1105 3/14/2016 K-40 10,300 10,600 7,740 - 14,200 Pass ERS0-1105 3/14/2016 Mn-54 < 50.8 < 1000 0.0 - 1,000 Pass ERS0-1105 3/14/2016 Pb-212 1,140 1,240 812 - 1,730 Pass ERS0-1105 3/14/2016 Pb-214 3,190 3,710 2, 170 - 5,530 Pass ERS0-1105 3/14/2016 Pu-238 680 658 396 - 908 Pass ERS0-1105 3/14/2016 Pu-239/240 460 496 324 - 0,685 Pass ERS0-1105 3/14/2016 Sr-90 7,740 8,560 3,260 - 13,500 Pass ERS0-1105 3/14/2016 Th-234 3,630 3,430 1,080 - 6,450 Pass ERS0-1105 3/14/2016 U-233/234 3,090 3,460 2,110 -4,430 Pass ERS0-1105 3/14/2016 U-238 3,280 3,430 2, 120 - 4,350 Pass ERS0-1105 3/14/2016 Zn-65 2,940 2,450 1,950 - 3,260 Pass ERW-1115 3/14/2016 Gr. Alpha 105.0 117.0 41.5 -181.0 Pass ERW-1115 3/14/2016 Gr. Beta 76.2 75;5 43.2 -112.0 Pass ERW-1117 3/14/2016 H-3 8,870 8,650 5,800 - 12,300 Pass ERVE-1108 3/14/2016 Am-241 1,930 2,120 1,300 - 2,820 Pass ERVE-1108 3/14/2016 Cm-244 1,294 1,560 764 - 2,430 Pass ERVE-1108 3/14/2016 Co-60 1,164 1,100 759 - 1,540 Pa~s ERVE-1108 3/14/2016 Cs-134 1,056 1,070 687 - 1,390 Pass ERVE-1108 3/14/2016 Cs-137 930 838 608 -1,170 Pass ERVE-1108 3/14/2016 K-40 32,200 31,000 22,400 - 43,500 Pass ERVE-1108 3/14/2016 Mn-54 < 24.5 < 300 0.00 - 300 Pass ERVE-1108 3/14/2016 Zn-65 3,320 2,820 2,030 - 3,960 Pass D-6

TABLE D-4 ERA STATISTICAL

SUMMARY

PROFIClENCY TESTING PROGRAM 3 MRAD Study, ENVIRONMENTAL, INC., 2016 Concentration a Laboratory ERA Control Lab Code b Date Analysis Result Result Limits Acceptance ERVE-1108 3/14/2016 Pu-238 3,410 2,810 1,680 - 3,850 Pass ERVE-1108 3/14/2016 Pu-239/240 4,120 3,640 2,230 - 5,010 Pass ERVE-1108 3/14/2016 Sr-90 8,120 8,710 4,960 - 11,500 Pass ERVE-1108 3/14/2016 U-233/234 4,350 4,160 2,740 - 5,340 Pass ERVE-1108 3/14/2016 U-238 4,220 4,120 2,750 - 5,230 Pass ERW-1111 3/14/2016 Am-241 113 121 81.5-162 Pass ERW-1111 3/14/2016 Co-60 1,120 1,050 912 -1,230 *Pass ERW-1111 3/14/2016 Cs-134 806 842 618-968 Pass ERW-1111 3/14/2016 Cs-137 1,190 1,100 934 - 1,320 Pass ERW-1111 3/14/2016 Mn-54 < 5.89 < 100 0.00-100 Pass ERW-1111 3/14/2016 Pu-238 159 138 102 - 172 Pass ERW-1111 3/14/2016 Pu-239/240 113 98.7 76.6 - 124 Pass ERW-1111 3/14/2016 U-233/234 46.9 52.7 39.6 - 68.0 Pass ERW-1111 3/14/2016 U-238 50.4 52.3 39.9 - 64.2 Pass ERW-1111 3/14/2016 Zn-65 1,160 1,010 842 - 1,270 Pass ERW-1111 3/14/2016 Fe-55 1,600 1,650 984 - 2,240 Pass ERW-1111 3/14/2016 Sr-90 430 434 283 - 574 Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurements Laboratory Quality Assessment Program (EML).

b Laboratory codes as follows: ERW (water), ERAP (air filter), ERSO (soil), ERVE (vegetation). Results are reported in units of pCi/L, except for air filters (pCi/Filter), vegetation and soil (pCi/kg).

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

D-7

TABLE D-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

ENVIRONMENTAL, INC., 2016 Concentration a Reference Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAS0-1053 2/1/2016 Ni-63 1,206 +/- 20 1250 875 - 1625 Pass MAS0-1053 2/1/2016 Sr-90 0.65 +/- 1.27 0.00 NA c Pass MAS0-1053 2/1/2016 Tc-99 0.1 +/- 5.5 0.0 NA c Pass MAS0-1053 2/1/2016 Cs-134 908 +/- 26 1030 721 - 1339 Pass MAS0-1053 2/1/2016 Cs-137 0.10 +/- 6.20 0.00 NA c Pass MAS0-1053 2/1/2016 Co-57 1058 +/- 26 992 694 -1290 Pass MAS0-1053 2/1/2016 Co-60 1229 +/- 28 1190 833 - 1547 Pass MAS0-1053 2/1/2016 Mn-54 1235 +/- 43 1160 812 - 1508 Pass MAS0-1053 2/1/2016 Zn-65 753 +/- 64 692 484 - 900 Pass MAS0-1053 2/1/2016 K-40 753+/-140 607 425 - 789 Pass MAS0~1053 2/1/2016 Am-241 79 +/-6 103 72 -134 Pass MAS0-1053 2/1/2016 Pu-238 73.9 +/- 9.2 63.6 44.5 - 82.7 Pass MAS0-1053 2/1/2016 Pu-239/240 0.76+/-1.34 0.21 NAd Pass MAS0-1053 2/1/2016 U-234/233 45.0 +/- 5.1 45.9 32.1 - 59.7 Pass MAS0-1053 2/1/2016 U-238 129 +/- 9 146 102 - 190 Pass MAW-989 2/1/2016 Am-241 0.018 +/- 0.015 0.00 NA c Pass MAW-989 2/1/2016 H-3 0.2 +/- 2.8 0.0 NA c Pass MAW-989 2/1/2016 Ni-63 12.8 +/- 2.7 12.3 8.6 - 16.0 Pass MAW-989 2/1/2016 Sr-90 8.70+/-1.20 8.74 6.12 - 11.36 Pass MAW-989 2/1/2016 Tc-99 -1.1 +/-0.6 0.0 NAC Pass MAW-989 2/1/2016 Cs-134 15.5 +/- 0.3 16.1 11.3 +/- 20.9 Pass MAW-989 2/1/2016 Cs-137 23.7 +/- 0.5 21.2 14.8 - 27.6 Pass MAW-989° 2/1/2016 Co-57 1.38 +/- 0.12 0.00 NA c Fail MAW-989 2/1/2016 Co-60 12.5 +/- 0.3 11.8 8.3 - 15.3 Pass MAW-989 2/1/2016 Mn-54 12.2 +/- 0.4 11.1 7.8 - 14.4 Pass MAW-989 2/1/2016 Zn-65 15.7 +/- 0.7 13.6 9.5 -17.7 Pass MAW-989 2/1/2016 K-40 288 +/-5 251 176 - 326 Pass MAW-989 2/1/2016 Fe-55 17.3 +/- 7.0 16.2 11.3 - 21.1 Pass MAW-989 2/1/2016 Ra-226 0.710 +/- 0.070 0.718 0.503 - 0.933 Pass MAW-989 2/1/2016 Pu-238 1.280 +/- 0.110 1.244 0.871 +/- 1.617 Pass MAW-989 2/1/2016 Pu-239/240 0.640 +/- 0.080 0.641 0.449 - 0.833 Pass MAW-989 2/1/2016 U-234/233 1.39 +/- 0.12 1.48 1.04 - 1.92 Pass MAW-989 2/1/2016 U-238 1.43+/-0.12 1.53 1.07 -1.99 Pass MAW-893 2/1/2016 Gross Alpha 0.600 +/- 0.050 0.673 0.202 -1.144 Pass MAW-893 2/1/2016 Gross Beta 2.10 +/- 0.06 2.15 1.08 - 3.23 Pass MAW-896 2/1/2016 1-129 3.67 +/- 0.20 3.85 2.70 - 5.01 Pass MAAP-1056 2/1/2016 Gross Alpha 0.39 +/- 0.05 1.20 0.36 - 2.04 Pass MAAP-1056 2/1/2016 Gross Beta 1.03 +/- 0.07 0.79 0.40-1.19 Pass MAAP-1057 2/1/2016 . Sr-90 1.34 +/- 0.15 1.38 0.97 +/- 1.79 Pass MAAP-1057 2/1/2016 Cs-134 -0.01 +/- 0.03 0.00 NA c Pass MAAP-1057 2/1/2016 Cs-137 2.57 +/- 0.10 2.30 1.61 - 2.99 Pass D-8 (Page 1 of 3)

TABLE D-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

ENVIRONMENTAL, INC., 2016 Concentration a Reference Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MMP-1057 2/1/2016 Co-57 3.01 +/- 0.06 2.94 2.06 - 3.82 Pass MMP-1057 2/1/2016 Co-60 4.28 +/- 0.10 4.02 2.81 - 5.23 Pass MMP-1057 2/1/2016 Mn-54 4.90 +/- 0.13 4.53 3.17 - 5.89 Pass MMP-1057 2/1/2016 Zn-65 4.09 +/- 0.18 3.57 2.50 - 4.64 Pass MMP-1057 2/1/2016 Am-241 0.059 +/- 0.015 0.0805 0.0564 - 0.1047 Pass MMP-1057 2/1/2016 Pu-238 0.066 +/- 0.020 0.0637 0.0446 - 0.0828 Pass MMP-1057 2/1/2016 Pu-239/240 0.074 +/- 0.020 0.099 NA d Pass MMP-1057 2/1/2016 U-234/233 . 0.151 +/- 0.026 0.165 0.116-0.215 Pass MMP-1057 2/1/2016 U-238 0.160 +/- 0.026 0.172 0.120 - 0.224 Pass MAVE-1050 2/1/2016 Cs-134 9.83 +/- 0.19 10.62 7.43 -13.81 Pass MAVE-1050 2/1/2016 Cs-137 6.06 +/- 0.19 5.62 3.93 - 7.31 Pass MAVE-1050 2/1/2016 Co-57 13.8 +/- 0.2 11.8 8.3 -15.3 Pass MAVE-1050 2/1/2016 Co-60 0.022 +/- 0.040 0.00 NAC Pass MAVE-1050 2/1/2016 Mn-54 0.009 +/- 0.044 0.000 NAC Pass MAVE-1050 2/1/2016 Zn-65 10.67 +/- 0.39 9.60 6.70 - 12.50 Pass MAS0-478d 8/1/2016 Ni-63 648 +/- 14 990 693 - 1287 Fail MAS0-4780 9 8/1/2016 Ni-63

902 +/- 46 990 693 - 1287 Pass MAS0-4780 8/1/2016 Sr-90 757+/-16 894 626 - 1162 Pass MAS0-4780 8/1/2016 Tc-99 559 +/- 12 556 389 - 723 Pass MAS0-4780 8/1/2016 Cs-134 0.93 +/- 2.92 0.00 NA c Pass MAS0-4780 8/1/2016 Cs-137 1061 +/-12 1067 747 - 1387 Pass MAS0-4780 8/1/2016 Co-57 1178 +/- 8 1190 833 -1547 Pass MAS0-4780 8/1/2016 Co-60 841 +/- 9 851 596 -1106 Pass MAS0-4780 8/1/2016 Mn-54 0.69 +/- 2.53 0.00 NA c Pass MAS0-4780 8/1/2016 Zn-65 724 +/- 19 695 487 - 904 Pass MAS0-4780 8/1/2016 K-40 566 +/- 52 588 412 - 764 Pass MAS0-4780 8/1/2016 Am-241 0.494 +/- 0.698 0.000 NA c Pass MAS0-4780 8/1/2016 Pu-238 69.7 +/- 7.4 70.4 49.3 - 91.5 Pass MAS0-4780 8/1/2016 Pu-239/240 53.9 +/- 6.3 53.8 37.7 - 69.9 Pass MAS0-4780h 8/1/2016 U-233/234 46.8 +/- 3.9 122 85 - 159 Fail MAS0-4780h 8/1/2016 U-238 46.6 +/- 3.9 121 85 - 157 Fail MAW-4776 8/1/2016 1-129 4.40 +/- 0.20 4.54 3.18 - 5.90 Pass MAVE-4782 8/1/2016 Cs-134 -0.01 +/- 0.05 0.00 NA c Pass MAVE-4782 8/1/2016 Cs-137 6.18 +/- 0.20 5.54 3.88 - 7.20 Pass MAVE-4782 8/1/2016 Co-57 8.13 +/- 0.16 6.81 4.77 - 8.85 Pass MAVE-4782 8/1/2016 Co-60 5.30 +/- 0.15 4.86 3.40 - 6.32 Pass MAVE-4782 8/1/2016 Mn-54 8.08 +/- 0.24 7.27 5.09 - 9.45 Pass MAVE-4782 8/1/2016 Zn-65 6.24 +/- 0.36 5.40 3.78 - 7.02 Pass MMP-4784 8/1/2016 Sr-90 1.18 +/-0.10 1.03 0.72 - 1.34 Pass MMP-4784 8/1/2016 Cs-134 1.58 +/- 0.08 2.04 1.43 - 2.65 Pass D-9 (Page 2 of 3)

TABLE D-5 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

ENVIRONMENTAL, INC., 2016 Concentration a Reference Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MMP-4784 8/1/2016 Cs-137 1.85 +/- 0.09 1.78 1.25 - 2.31 Pass MMP-4784 8/1/2016 . Co-57 2.39 +/- 0.52 2.48 1.74 - 3.22 Pass MMP-4784 8/1/2016 Co-60 3.22 +/- 0.08 3.26 2.28 -4.24 Pass MMP-4784 8/1/2016 Mn-54 2.82 +/-0.12 2.75 1.93 - 3.58 Pass MMP-4784 8/1/2016 Zn-65 -0.015 +/- 0.062 0.00 . . NA c Pass MMP-4784 8/1/2016 Am-241 -0.001 +/- 0.006 0.00 NA c Pass MMP-4784 8/1/2016 Pu-238 0.075 +/- 0.022 0.069 0.049 - 0.090 Pass MMP-4784 8/1/2016 Pu-239/240 0.048 +/- 0.015 0.054 0.038 - 0.070 Pass MMP-4784 8/1/2016 U-234/233 0.151 +/- 0.036 0.150 0.105 - 0.195 Pass MMP-4784 8/1/2016 U-238 0.147 +/- 0.034 0.156 0.109 - 0.203 Pass MAW-4778 8/1/2016 H-3 365 +/- 11 334 234 - 434 Pass MAW-4778 8/1/2016 Fe-55 23.6+/-16.3 21.5 15.1 +/- 28.0 Pass MAW-4778 8/1/2016 Ni-63 17.0 +/- 2.8 17.2 12.0 +/- 22.4 . Pass MAW-4778 8/1/2016 Sr-90 0.17 +/- 0.28 0.00 NA c Pass MAW-4778 8/1/2016 Tc-99 9.50 +/- 0.41 11.60 8.10 -15.10 Pass MAW-4778 8/1/2016 Cs-134 22.6 +/- 0.4 23.9 16.7-31.1 Pass MAW-4778 8/1/2016 Cs-137 0.018 +/- 0.117 0.00 NA c Pass MAW-4778 8/1/2016 Co-57 27.6 +/- 0.2 27.3 19.1 +/- 35.5 Pass MAW-4778 8/1/2016 Co-60 0.018 +/- 0.090 0.00 NAC Pass MAW-4778 8/1/2016 Mn-54 16.2 +/- 0.4 14.8 10.4 -19.2 Pass MAW-4778 8/1/2016 Zn-65 19.3 +/- 0.7 17.4 12.2 - 22.6 Pass MAW-4778 8/1/2016 K-40 286 +/-6 252 176 - 328 Pass MAW-4778 8/1/2016 Ra-226 1.48 +/- 0.09 1.33 0.93 - 1.73 Pass MAW-4778 8/1/2016 Pu-238 1.09 +/- 0.13 1.13 0.79 - 1.47 Pass MAW-4778 8/1/2016 Pu-239/240 0.003 +/- 0.011 0.016 NA d Pass MAW-4778 8/1/2016 U-234/233 1.80+/-0.13 1.86 1.30 - 2.42 Pass MAW-4778 8/1/2016 U-238 1.77 +/- 0.13 1.92 1.34 - 2.50 Pass MAW-4778 8/1/2016 Ain-241 0.678 +/- 0.086 0.814 0.570 +/- 1.058 Pass a Results are reported in units of Bq/kg (soil), Bq/L (water) or Sq/total sample (filters, vegetation).

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

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

d Provided in the series for "sensitivity evaluation". MAPEP does not provide control limits.

The laboratory properly identified the Sn-75 interfering peak in the vicinity of Co-57 and stated so in the comment field. MAPEP requires results to be reported as an activity with an uncertainty. Since the calculated uncertainty was less than the activity MAPEP interpreted the submitted result as a "false positive" resulting in a failure.

1 Original analysis for Ni-63 failed.

9 Reanalysis with a smaller aliquot resulted in acceptable results. An investigation is in process to identify better techniques for analyzing samples with complex matrices.

h MAPEP states that samples contain two fractions of Uranium; one that is soluble in concentrated HN03 and HCI acid and one that is "fundamentally insoluble in these acids". They also state that HF treatment can not assure complete dissolution.

Results are consistent with measuring the soluble form.

D-10 (Page 3 of 3)

TABLE D-6 lnterlaboratory Comparison Crosscheck Program, Environmental Resource Associates (ERA) 3 RAD Study, ENVIRONMENTAL, INC., 2016 Concentration (pCi/L}

Lab Code Date Analysis Laboratory ERA Control Result Result Limits Acceptance ERW-1392 4/4/2016 Sr-89. 43.5 +/- 4.3 48.2 37.8 - 55.6 Pass ERW-1392 4/4/2016 Sr-90 27.5+/-1.9 28.5 20.7 - 33.1 Pass ERW-1394 b 4/4/2016 Ba-133 65.2 +/- 3.8 58.8 48.7 - 64.9 Fail ERW-1394 c 4/4/2016 Ba-133 57.8 +/- 5.3 58.8 48.7 - 64.9 Pass ERW-1394 4/4/2016 Cs-134 43.7 +/- 3.0 43.3 34.6 - 47.6 Pass ERW-1394 4/4/2016 Cs-137 86.1 +/- 5.3 78.4 70.6 - 88.9 Pass ERW-1394 4/4/2016 Co-60 108 +/- 44 102 91.8 ~ 114 Pass ERW-1394 4/4/2016 Zn-65 240 +/- 13 214 193 - 251 Pass ERW-1397 4/4/2016 Gr. Alpha 52.0 +/- 2.2 62.7 32.9 - 77.8 Pass ERW-1397 4/4/2016 Gr. Beta 33.9 +/- 1.2 39.2 26.0 - 46.7 Pass ERW-1400 4/4/2016 1-131 24.7 +/- 0.6 26.6 22.1-31.3 Pass ERW-1402 4/4/2016 Ra-226 '15.6 +/- 0.5 15.2 11.3-17.4 Pass ERW-1402 4/4/2016 Ra-228 5.28 +/- 0.76 5.19 3.12 - 6.93 Pass ERW-1403 4/4/2016 Uranium 4.02 +/- 0.42 4.64 3.39 - 5.68 Pass ERW-1405 4/4/2016 H-3 8,150 +/- 270 7,840 6,790 - 8,620 Pass SPW-2845 7/7/2015 Ba-133 60.3 +/- 5.7 64.7 53.9 - 71.2 Pass SPW-2845 7/7/2015 Cs-134 48.8 +/- 9.3 50.1 40.3 - 55 ..1 Pass SPW-2845 7/7/2015 Cs-137 101 +/-8 89.8 80.8-101 Pass SPW-2845 7/7/2015 Co-60 65.1 +/- 5.8 59.9 53.9 - 68.4 Pass SPW-2845 7/7/2015 Zn-65 288 +/- 29 265 238 - 310 Pass ERW-3485 7/11/2016 Sr-89 43.3 +/- 6.5 53.3 42.3 - 60.9 Pass ERW-3485 7/11/2016 Sr-90 39.0 +/- 2.8 39.2 28.8 - 45.1 Pass ERW-3487 7/11/2016 Ba-133 83.3 +/- 4.9 82.9 69.7 - 91.2 Pass ERW-3487 7/11/2016 Cs-134 ' 62.5 +/- 4.4 65.3 53.1 - 71.8 Pass ERW-3487 7/11/2016 Cs-137 98.1 +/- 5.6 95.2 85.7 -107 Pass ERW-3487 7/11/2016 Co-60 122 +/- 5 117 105 -131 Pass ERW-3487 7/11/2016 Zn-65 124 +/- 9 113 102 - 134 Pass ERW-3490 7/11/2016 Gr. Alpha 46.6 +/- 2.2 48.1 25.0 - 60.5 Pass ERW-3490 7/11/2016 Gr. Beta 26.8 +/- 1.1 28.6 18.2 - 36.4 Pass ERW-3492 7/11/2016 1-131 23.7+/-1.0 24.9 20.7 - 29.5 Pass ERW-3493 7/11/2016 Ra-226 12.9 +/- 0.4 12.3 9.2 - 14.2 Pass ERW-3493 7/11/2016 Ra-228 5.8 +/- 0.8 5.8 3.5 - 7.6 Pass ERW-3493 7/11/2016 Uranium 32.8 +/- 0.8 25.2 28.4 - 39.3 Pass ERW-3495 7/11/2016 H-3 12,400 +/- 334 12,400 10,800 - 13,600 Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b No .reason determined for failure of Ba-133 result.

0 The result of reanalysis (Compare to original result, footnoted "b" above).

D-11

APPENDIX E EFFLUENT DATA

TABLE OF CONTENTS INTRODUCTION .......................................................................................................~ ......... 1

SUMMARY

........................................................................................................................... 3 1.0. EFFLUENTS ..................................................................................................... 4 1.1. Gaseous Effluents to the Atmosphere .................................................. 4 1.2. Liquids Released to Lake Michigan ............. ;......................................... 4 2.0. SOLID' RADIOACTIVE WASTE ....................................................................... 4 3.0. DOSE TO MAN ................................................................................................. 4 3.1. Gaseous Effluent Pathways .............................................................. ,... 4 3.1 .1 . Gaseous Releases ................................*.................................. 5 3.1.1.1. Gamma Dose Rates .................................................. 5 3.1.1.2. Beta Air and Skin Dose Rate .................................... 5 3.1.2. Radioactive Iodine ................................................................... 5 3.1.3 .. Dose to Thyroid ....................................................................... 6 3.2. Liquid Effluent Pathways ................................... ,................................... 6 3.3. Direct Radiation .......................... *........................................................... 6 3.4. Assessment of Dose to Member of Public ............................................ 7 4.0. SITE METEOROLOGY .................................................................................... 7

Table of Contents (cont.)

APPENDIX E-1 DATA TABLES AND FIGURES ............................................................. E-1.1 Station Releases Table 3.1-1 Maximum Dose Resulting from Airborne Releases .................. E-1.2 Table 3.2-1 Maximum Dose Resulting from Liquid Effluents****'.****************** E-1.6 Table 3.3-1 Maximum Dose Resulting from Direct Radiation ...................... E-1.10 Table 3.4-1 10CFR20 Compliance Assessment.. ........................................ E-1.11 Table 3.5-1 Doses Resulting from Airborne Releases ................................. E-1.15 ii

INTRODUCTION Units 1 and 2 of the Zion Station, located in Zion, Illinois adjacent to Lake Michigan, were 1100 MWe (3520 MWt) Westinghouse pressurized water reactors. The plant permanently ceased operation in February of 1998 and has been permanently defueled. The station is in an advanced state of decommissioning.

The station was designed to keep releases to the environment at levels below those specified in the regulations. Historical data has been established that Zion, as a fully operational facility, did not contribute appreciable doses to the surrounding public. Sampling results for 2016 showed minimal releases above background for a variety of monitored pathways, e.g. water, vegetation, air samples and TLD.

Liquid effluents from Zion Station are released to Lake Michigan in controlled batches after radioassay of each batch and continuously through a monitored pathway. There are no routine noble gas releases. Due to decay, iodine is no longer present. The only noble gas that remained priorto January 2015 was Kr-85 captured in the spent fuel assemblies stored in the fuel pool in the fuel building. During January 2015, the last fuel assembly was removed from the fuel building and Kr~85 is no longer present in the fuel handling building. The results of effluent analyses are summarized on a monthly basis and reported to the Nuclear Regulatory Commission as required per Quality Assurance Project Plan which replaced the Technical Specifications after spent fuel was transferred to the ISFSI. Airborne concentrations of noble gases and particulate radioactivity in offsite areas are calculated using effluent and historical meteorological data.

Currently Zion Station is undergoing decommissioning. During the decommissioning process, containerized waste is temporarily maintained at designated locations onsite. The designated locations are located in a manner to minimize the direct radiation exposure to the public at or near the site boundary.

Environmental monitoring was conducted by sampling at indicator and control (background) lqcations in the vicinity of the Zion Station to measure changes in radiation or radioactivity levels that may be attributable to the station. If significant changes attributable to Zion Station are measured, these changes are correlated with effluent releases or direct radiation from containerized waste.

ISFSI operations were conducted in 2016 which attributed direct radiation dose in the form of gamma and neutron radiation to members of the public. The results of the calculated dose from direct radiation from the ISFSI have been calculated and included in this report. In addition to the dose contributed to members of the public, a special case exists for members of the public working 1

onsite in the switchyard area. Switchyard worker dose results are also included in this report.

2

SUMMARY

Gaseous, liquid and solid waste effluents for the period contributed to only a small fraction of the Station Technical Specification limits. Calculations of environmental concentrations based on effluent and historical meteorological data for the period indicate that consumption by the public of radionuclides attributable to the Zion Station does not exceed regulatory limits. Radiation exposure from direct radiation from the ISFSI and containerized waste at the site boundary represented the critical pathway for the period with a maximum individual total body dose estimated to be 1.49E+01 mrem for the year, where a factor to analyze exposure based on habits of the real individual of 3.38-01 was applied at the maximally exposed receptor. The assessment of radiation doses is performed in accordance with the Zion Station Offsite Dose Calculation Manual (ODCM). The results of analysis confirm that the station is operating in compliance with 10 CFR 50 Appendix I, 10 CFR 20, 10 CFR 72 and 40 CFR 190.

1.0 EFFLUENTS 1.1 Gaseous Effluents to the Atmosphere Measured concentrations and isotopic composition of noble gases and particulate radioactivity released to the atmosphere were monitored during the year. A total of O.OOE+OO microcuries (µCi) of fission and activation gases was released with a maximum average release rate of O.OOE+OO µCi/sec during any one quarter period.

A total of 4.51 E-04 curies of beta-gamma emitters was released as airborne particulate matter with a maximum average quarterly release rate of 1.43E-05 µCi/sec. Alpha-emitting radionuclides were less than measurable detection limits. O.OOE+OO curies of tritium were released with a maximum average quarterly release rate of O.OOE+OO µCi/sec.

1.2 Liquids Released to Lake Michigan A total of 1.54E+07 liters of liquid waste containing 2.82E-02 curies of fission and activation products, 1.06E+OO curies of tritium, and 1.87E-05 Ci of Alpha was discharged from the station via an approved pathway after dilution with a total of 9.96E+09 liters of

. water. These wastes were released at a maximum quarterly average concentration of 3.59E-08 µCi/ml. Monthly release .

estimates and principal radionuclides in liquid effluents are reported in the Zion Nuclear Power Station Radioactive Effluent Report for 2016.

2.0 SOLID RADIOACTIVE WASTE There were 191 solid radioactive waste shipments in 2016. For more detail, referto the Zion Station 2016 Annual Radioactive Effluent Release Report.

3.0 DOSE TO MAN 3.1 Gaseous Effluent Pathways Table 3.1-1 summarizes the doses resulting from releases of airborne radioactivity via the different exposure pathways.

4

3.1.1 Gaseous Releases 3.1.1.1 Gamma Dose Rates Offsite Gamma air and whole (total) body dose rates are shown in Table 3.1-1 and were calculated based on measured release rates, isotopic composition of the gases, and meteorological data for the period. Based on measured effluents and historical meteorological data, the maximum total body dose to an individual would be 2.96E-02 mrem (adult) for the year (Table 3.5-1 ), with an occupancy or shielding factor of 0.7 included. The maximum gamma air dose was O.OOE+OO mrad based on measured effluents and average historical meteorological data (Table 3.5-1 ).

3.1.1.2 Beta Air and Skin Dose Rates The range of beta particles in air is relatively small (on the order of a few nieters or less);

consequently, plumes of gaseous effluents may be considered "infinite" for purpose of calculating the dose from beta radiation incident on the skin.

However, the actual dose to sensitive skin tissues is difficult to calculate due to the effect of the beta particle energies, thickness of inert skin and clothing covering sensitive tissues. For purposes of this report the skin is taken to have a thickness of 7.0 mg/cm 2 and an occupancy factor of 1.0 is used. The skin dose from beta and gamma radiation for the year O.OOE+OO mrem based on measured effluents and historical meteorological data (Table 3.5-1 ).

The maximum offsite beta air dose for the year was O.OOE+OO mrad based on measured effluents and historical meteorological data {Table 3.5-1 ).

3.1.2

Radioactive Iodine The human thyroid exhibits a significant capacity to concentrate ingested or inhaled iodine. The radioiodine, 1-131, released during routine operation of the station, may 5

be made available to man resulting in a dose to the thyroid.

The principal pathway of interest for this radionuclide is ingestion of radioiodine in milk. As Zion Station is not operational and 1-131 has decayed away, the maximum offsite concentration is estimated to be zero, as expected.

3.1.3 Dose to Thyroid The hypothetical thyroid dose to a maximum exposed individual living near the station via ingestion of milk was calculated. As Zion Station is not operational and 1-131 has decayed away, the maximum offsite concentration is estimated to be zero, as expected.

3.2 Liquid Effluent Pathways The three principal pathways through the aquatic environment for potential doses to man from liquid waste are ingestion of potable water, eating aquatic foods, and exposure while on the shoreline.

Not all of these pathways are significant or applicable at a given time but a reasonable approximation of the dose can be made by adjusting the dose formula for season of the year or type and degree of use of the aquatic environment. NRC developed equations* were used to calculate the doses to the whole body, lower GI tracts, thyroid, bone, skin; specific parameters for use in the equations are given in the Zion Station Offsite Dose Calculation Manual. The maximum whole body dose (total body) for the year was 8. 73E-03 mrem and no organ dose exceeded 3.1 OE-02 mrem (Table 3.2-1 ).

3.3 Direct Radiation During the period January to December 2016, Zion Station during decommissioning has' stored containerized radioactive waste combined with direct radiation from the ISFSI (including gamma plus neutron) that contributed a total of 1.49E+01 mrem to the whole body of a maximally exposed individual at site boundary taking into account the occupancy factor of 3.38E-01 calculated in Zion Station ES&H Technical Support Document (TSO)13-009 "Member of the Public Dose from All Onsite Sources." The maximally exposed member of the public working in the switchyard onsite was calculated to receive 9.98E+01 mrem to the whole body at the south switchyard boundary. This value takes into account the occupancy factor of 2.38E-01 as described in ES&H TSO 13-009 referenced above.

During Quarters 1-3 of 2016 the historical Harshaw TLD100 6

dosimeters were used to estimate dose. The Harshaw TLD100 gamma readings are known to over-respond in the presence of neutrons. During Quarter 4 of 2016, a study on TLD over-response was completed and the Harshaw TLD1 ODs were replaced with Panasonic TLD814 Environmental TLDs which do not over-respond in the presence of neutrons. No correction has been made for the over-response in the above dose values as the values above demonstrate regulatory compliance.

3.4 Assessment of Dose to Member of Public During the period January to December, 2016, Zion Station did not exceed the below limits as shown in Table 3.1-1 and Table 3.2-1 (based on yearly average meteorological data), and Table 3.3 (based on TLD results): ,

The RETS limits on dose or dose commitment to an individual due to radioactive materials in liquid effluents from each reactor unit (3 mrem to the whole body or 10 mrem to any organ during any calendar year).

The RETS limits on air dose in noble gases released in gaseous effluents to a member of the public from each reactor unit (10 mrads for gamma radiation or 20 mrad for beta radiation during any calendar year).

The RETS limits on dose to a member of the public due to iodine-131, iodine-133, tritium, and radionuclides in particulate form 'with half-lives greater than eight days in gaseous effluents released from each reactor unit (15 mrem to any organ during any calendar year).

The 10CFR20 limit on Total Effective Dose Equivalent to individual members of the public (100 mrem).

The 10CFR72.104 limit on Total Effective Dose Equivalent to individual members of the public from combined effluents and radioactive material including ISFSl(25 mrem).

4.0 SITE METEOROLOGY A summary of the site meteorological measurements taken during the period of operation of the meteorological tower is given in Appendix 11 . After fuel was removed from the fuel building, the meteorological tower was no longer required and the tower was removed. A new historical average of the meteorological data 7

was created to reflect current parameters and the data are presented as cumulative joint frequency which represents a time period from January 1 2009 to December 31 2014.

Nuclear Regulatory Commission, Regulatory Guide 1.109 (Rev. 1) distributions of the wind direction for the 250' level and wind speed class by atmospheric stability class determined from the temperature difference between the 250' and 35' levels. Data recovery for these measurements was 99.6% during 2016 (Table 3.5-1 ).

8

APPENDIX E-1 DATA TABLES AND FIGURES

Table 3.1-1 Maximum Dose Resulting from Airborne Releases Zion Station 2016 GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES Unit 1 Vent Stack - GROUND RELEASES REPORT FOR 2016 Units QTR 1 QTR 2 QTR 3 QTR 4 YEAR Fission and Activation Gases