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Submittal of 2016 Annual Radiological Environmental Operating Report - Part 1 of 2
	ML17132A060
Person / Time
Site:	LaSalle
Issue date:	05/12/2017
From:	Trafton W; Exelon Generation Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
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ML17132A233	List: ML17132A060; RA17-048, 2016 Annual Radiological Environmental Operating Report - Part 2 of 2;
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Exelon Generation ~,

LaSalle County Station 2601 North 21 51 Road Marseilles, IL 61341 815-415-2000 Telephone www.exeloncorp.com RA17-048 10 CFR 50 Appendix I May 12, 2017 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555

Subject:

LaSalle County Station, Units 1 and 2 Renewed Facility Operating License Nos. NPF-11 and NPF-18 NRG Docket Nos. 50-373 and 50-374 2016 Annual Radiological Environmental Operating Report Enclosed is the Exelon Generation Company, LLC, 2016 Annual Radiological Environmental Operating Report for LaSalle County Station, submitted in accordance with Technical Specifications 5.6.2, "Annual Radiological Environmental Operating Report." The enclosed report contains the results of groundwater monitoring conducted in accordance with Exelon's Radiological Groundwater Protection Program, which is a voluntary program implemented in 2006. This information is being reported in accordance with a nuclear industry initiative.

There are no regulatory commitments in this letter. Should you have any questions concerning this report, please contact Mr. Guy V. Ford, Jr., Regulatory Assurance Manager, at (815) 415-2800.

Respectfully, Ji{~la3L Site Vice President LaSalle County Station

Enclosure:

cc:

LaSalle County Station Units 1 and 2 Annual Radiological Environmental Operating Report 1 January through 21 December 2016 Regional Administrator - NRG Region Ill NRG Senior Resident Inspector - LaSalle County Station

NRC RA17-048 2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT PART 1

Docket No:

50-373 50-374 LASALLE COUNTY STATION UNITS 1and2 Annual Radiological Environmental Operating Report 1 January through 31December2016 Prepared By Teledyne Brown Engineering Environmental Services Exelon Generation LaSalle County Station Marseilles, IL 61341 May 2017 1 of 183

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.................................................................................................. 5 C. Data Interpretation.............................................................................................. 5 D. Program Exceptions............................................................................................ 7 E. Program Changes............................................................................................... 8 IV. Results and Discussion................................................................................................. 9 A. Aquatic Environment........................................................................................... 9

1. Surface Water........................................................................................... 9

2. Ground/Well Water................................................................................... 9

3. Fish......................................................................................................... 10

4. Sediment................................................................................................. 10 B. Atmospheric Environment................................................................................. 11 1. Airborne.................................................................................................. 11

a. Air Particulates............................................................................. 11

b. Airborne Iodine............................................................................ 12

2. Terrestrial................................................................................................ 12

a. Milk............................................................................................... 12

b. Food Products............................................................................. 12

c. Vegetation.................................................................................... 12 C. Ambient Gamma Radiation............................................................................... 13 D. Land Use Survey............................................................................................... 13 E. Errata Data........................................................................................................ 14 F. Summary of Results - Inter-laboratory Comparison Program.......................... 14 2 of 183

Appendix A Tables Table A-1 Appendix B Tables Table B-1 Table B-2 Figures Figure B-1 Figure B-2 Figure B-3 Appendix C Tables Table C-1.1 Table C-1.2 Table C-1.3 Table C-11.1 Table C-11.2 Appendices Radiological Environmental Monitoring Report Annual Summary Radiological Environmental Monitoring Program Annual Summary for the LaSalle County Station, 2016 Location Designation, Distance & Direction, and Sample Collection &

Analytical Methods Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, LaSalle County Station, 2016 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, LaSalle County Station, 2016 Inner Ring OSLO Locations of the LaSalle County Station, 2016 Outer Ring OSLO Locations and Fixed Air Sampling Locations of the LaSalle County Station, 2016 Ingestion and Waterborne Exposure Pathway Sample Locations of the LaSalle County Station, 2016 Data Tables and Figures - Primary Laboratory Concentrations of Gross Beta in Surface Water Samples Collected in the Vicinity of LaSalle County Station, 2016 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of LaSalle County Station, 2016 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of LaSalle County Station, 2016 Concentrations of Tritium in Ground/Well Water Samples Collected in the Vicinity of LaSalle County Station, 2016 Concentrations of Gamma Emitters in Ground/Well Water Samples Collected in the Vicinity of LaSalle County Station, 2016 ii 3 of 183

Table C-111.1 Concentrations of Gamma Emitters in Fish Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-IV.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-V.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-V.2 Monthly and Yearly Mean Values of Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-V.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-Vl.1 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-Vll.1 Concentrations of 1-131 in Milk Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-Vll.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-Vlll.1 Concentrations of Gamma Emitters in Food Product Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-Vlll.2 Concentrations of Gamma Emitters in Vegetation Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-Vlll.3 Concentrations of Carbon-14 in Vegetation Samples Collected in the Vicinity of LaSalle County Station, 2016 Table C-IX.1 Quarterly OSLO Results for LaSalle County Station, 2016 Table C-IX.2 Mean Quarterly OSLO Results for the Inner Ring, Outer Ring, Other and Control Locations for LaSalle County Station, 2016 Table C-IX.3 Summary of the Ambient Dosimetry Program for LaSalle County Station, 2016 Figures Figure C-1 Figure C-2 Figure C-3 Figure C-4 Surface Water - Gross Beta - Stations L-21 (C) and L-40 Collected in the Vicinity of LSCS, 2005 - 2016 Surface Water - Tritium - Stations L-21 (C) and L-40 Collected in the Vicinity of LSCS, 2005 - 2016 Air Particulate - Gross Beta - Stations L-01 and L-03 Collected in the Vicinity of LSCS, 2005 - 2016 Air Particulate - Gross Beta - Stations L-05 and L-06 Collected in the Vicinity of LSCS, 2005 - 2016 iii 4 of 183

Figure C-5 Figure C-6 Figure C-7 Figure C-8 Appendix D Tables Table D-1 Table D-2 Table D-3 Table D-4 Table D-5 Appendix E Appendix F Appendix G Appendix H Air Particulate - Gross Beta - Station L-10 (C) Collected in the Vicinity of LSCS, 2005 - 2016 Air Particulate - Gross Beta - Stations L-04 and L-07 Collected in the Vicinity of LSCS, 2005 - 2016 Air Particulate - Gross Beta - Stations L-08 and L-11 Collected in the Vicinity of LSCS, 2005 - 2016 Air Particulate - Gross Beta - Station L-11A Collected in the Vicinity of LSCS, 2005 - 2016 Inter-Laboratory Comparison Program Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2016 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering, 2016 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering, 2016 ERA Statistical Summary Proficiency Testing Program Environmental, Inc., 2016 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Environmental, Inc., 2016 Effluent Data Meteorological Data Errata Data Annual Radiological Groundwater Protection Program Report (ARGPPR) iv 5of183

I.

Summary and Conclusions This report on the Radiological Environmental Monitoring Program conducted for the LaSalle County Station (LSCS) by Exelon covers the period 1 January 2016 through 31 December 2016. During that time period, 1,533 analyses were performed on 1,431 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of LSCS had no adverse radiological impact on the environment.

Surface water samples were analyzed for concentrations of gross beta, tritium and gamma-emitting nuclides. Ground/well water samples were analyzed for concentrations of tritium and gamma-emitting nuclides. No fission or activation products were detected. Gross beta and tritium activities detected were consistent with those detected in previous years.

Commercially and recreationally important fish species were sampled and analyzed for concentrations of gamma-emitting nuclides. No fission or activation products were detected in fish.

Sediment samples were analyzed for concentrations of gamma-emitting nuclides. One sediment sample from the control location contained Cesium-137 (Cs-137) at a level below the required lower limit of detection (LLD). The Cs-137 concentration was consistent with concentrations observed in previous years.

Cs-137 is often found in environmental media, such as sediment, from nuclear weapons testing. No other fission or activation products were identified in sediment.

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

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

Cow milk samples were analyzed for concentrations of 1-131 and gamma-emitting nuclides. All 1-131 results were below the minimum detectable activity.

Concentrations of naturally occurring Potassium-40 (K-40) were consistent with those detected in previous years. No fission or activation products were found.

Food product samples were analyzed for concentrations of gamma-emitting nuclides. No fission or activation products were detected.

Vegetation samples were analyzed for concentrations of gamma-emitting nuclides. Three of those samples were analyzed for naturally occurring Carbon-14 (C-14), also. Naturally occurring C-14 was found in 1 of the 3 samples. No fission or activation products were detected.

Environmental gamma radiation measurements were performed quarterly using Optically Stimulated Luminescence Dosimeters (OSLO) for the Radiological Environmental Monitoring Program (REMP). The results from the environmental gamma radiation monitoring program were consistent with those detected in previous years. 6of183

11.

Introduction The LaSalle County Station (LSCS), consists of two boiling water reactors, each rated for 3,546 MWt. Both units are owned and operated by Exelon Corporation and are located in LaSalle County, Illinois. Unit 1 went critical on 16 March 1982. Unit 2 went critical on 02 December 1983. The site is located in northern Illinois, approximately 75 miles southwest of Chicago, Illinois.

A Radiological Environmental Monitoring Program (REMP) for LSCS was initiated in 1982 (the preoperational period for most media covers the periods 1 January 1979 through 26 December 1981 and was summarized in a separate report.). This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Landauer 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.

B.

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

1.

Identifying significant exposure pathways.

2.

Establishing baseline radiological data of media within those pathways.

3.

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

111.

Program Description A.

Sample Collection Samples for the LSCS REMP were collected for Exelon Nuclear by Environmental Inc. (Midwest Labs). This section describes the general collection methods used by Environmental Inc. (Midwest Labs) to obtain 7 of 183

environmental samples for the LSCS REMP in 2016. Sample locations and descriptions can be found in Tables B-1 and B-2, and Figures B-1 through B-4, Appendix B.

Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, ground/well water, fish, and sediment. Two gallon water samples were collected weekly from two surface water locations (L-21 and L-40) and composited for monthly and quarterly required analyses. Control location was L-21. Two ground/well water locations (L-27 and L-28) were also grab sampled quarterly. All samples were collected via grab sample. The samples were then transferred to new unused plastic containers. Both the grab container and the sample containers were rinsed with source water prior to actual sample collection. Fish samples were collected semiannually at three locations, L-34, L-35 and L-36 (Control). Sediment samples composed of recently deposited substrate were collected at three locations semiannually, L-21 (Control), L-40 and L-41.

Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of airborne particulate and iodine. Airborne particulate and iodine samples were collected and analyzed weekly at ten locations (L-01, L-03, L-04, L-05, L-06, L-07, L-08, L-10, L-11 and L-11A).

The control location was L-10. Airborne particulate and iodine samples were obtained at each location, using a vacuum pump to pull air through a glass fiber particulate filter and iodine cartridge. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The particulate filters and iodine cartridges were replaced weekly and sent to the laboratory for analysis.

Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on samples of milk and food product. Samples are typically collected biweekly at one milk location (L-42) from May through October, and monthly from November through April. The control location was L-42.

All samples, when available, were collected in new unused two gallon plastic bottles from the bulk tank at each location, preserved with sodium bisulfite, and shipped promptly to the laboratory.

Food products were collected during the growing season at five locations (L-Quad Control, L-Quad 1, L-Quad 2, L-Quad 3 and L-Quad 4). The control location was L-Quad Control. Various types of samples were 8 of 183

collected and placed in new unused plastic bags, and sent to the laboratory for analysis.

Vegetation samples were collected monthly during the growing season from May through October at three locations (L-Veg C, L-ESE1, and L-ESE2). The control location was L-Veg C and was located in the lowest deposition sector (ENE sector) surrounding LaSalle. Various vegetation samples were also collected in the highest deposition sector (ESE sector) surrounding LaSalle. The samples were collected and placed in new unused plastic bags and sent to the laboratory for analysis.

Ambient Gamma Radiation Beginning in the first quarter of 2012, Exelon changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimetry (OSLO) were deployed and Thermo-luminescent Dosimetry (TLD) were discontinued.

This change may cause step changes in readings, up or down, depending on site characteristics. However, the relative comparison to control locations remains valid. OSLO technology is different than that used in a TLD but has the same purpose (to measure direct radiation).

Each location consisted of 2 OSLO sets. The OSLDs were exchanged quarterly and sent to Landauer for analysis. The OSLO locations were placed on and around the LSCS site as follows:

An inner ring consisting of 16 locations (L-101, L-102, L-103, L-104, L-105, L-106, L-107, L-108, L-109, L-110, L-1118, L-112, L-113A, L-114, L-115 and L-116) near and within the site perimeter representing fence post doses (i.e., at locations where the doses will be potentially greater than maximum annual off-site doses from LSCS releases).

An outer ring consisting of 16 locations (L-201, L-202, L-203, L-204, L-205, L-206, L-207, L-208, L-209, L-210, L-211, L-212, L-213, L-214, L-215 and L-216) extending to approximately 5 miles from the site designed to measure possible exposures to nearby population.

An other set consisting of nine locations (L-01, L-03, L-04, L-05, L-06, L-07, L-08, L-11 and L-11A).

The balance of one location (L-10) representing the control area.

The specific OSLO locations were determined by the following criteria: 9 of 183

1.

The presence of relatively dense population;

2.

Site meteorological data taking into account distance and elevation for each of the sixteen 22 % degree sectors around the site, where estimated annual dose from LSCS, 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 OSLDs were placed at each location approximately six feet above ground level.)

B.

Sample Analysis This section describes the general analytical methodologies used by Environmental Inc. (Midwest Labs) and TBE to collect and analyze, respectively, the environmental samples for radioactivity for the LSCS 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 surface water and air particulates

2.

Concentrations of gamma emitters in ground/well and surface water, air particulates, milk, fish, sediment and vegetation

3.

Concentrations of tritium in ground/well and surface water

4.

Concentrations of 1-131 in air and milk

5.

Ambient gamma radiation levels at various site environs C.

Data Interpretation The radiological and direct radiation data collected prior to LaSalle County Station becoming operational were used as a baseline with which these operational data were compared. For the purpose of this report, LaSalle County Station was considered operational at initial criticality. In addition, data were compared to previous years' operational data for consistency 10of183

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 (a priori) estimate of a system (including instrumentation, procedure and sample type) and not as an after the fact (a posteriori) criteria for the presence of activity. All analyses were designed to achieve the required LSCS 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 effecting a negative number. An MDC was reported in all cases where positive activity was not detected.

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

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

For ground/well water, fish, sediment, air particulate and milk; 11 nuclides including Mn-54, Co-58, Fe-59, Co-60, Zn-65, Zr-95, Nb-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. 11of183

D.

Program Exceptions For 2016, the LSCS REMP had a sample recovery rate of 99.5%. Sample anomalies and missed samples are listed in the tables below:

Sample Type A/I A/I A/I Sample Type M

SW OSLO OSLO OSLO OSLO OSLO Table D-1 LISTING OF SAMPLE ANOMALIES Location Collection Reason Code Date L-11A 07/21/16 Timer malfunction; timer replaced. Time of 186.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months was calculated and is based on previous sample time.

L-10 07/28/16 Low reading of 26.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months due to a pump malfunction; pump replaced.

L-01 12/22/16 No apparent reason for low reading of 118.0 hours0 days 0 hours 0 weeks 0 months . Low timer readings of this nature are consistent with weather-related power interruptions.

Table D-2 LISTING OF MISSED SAMPLES Location Collection Code Date L-42 01/07/16 L-40 01/21/16 L-209-2 02/06/16 L-03-1 03/30/16 L-03-2 03/30/16 L-212-1 03/30/16 L-213-3 06/29/16 Reason Farmer not milking at this time; no sample available.

No sample; water frozen.

OSLO found missing during monthly visual check.

OSLO not received at the laboratory for analysis.

OSLO found missing during quarterly exchange OSLO found missing during quarterly exchange.

12of183

Table D-2 LISTING OF MISSED SAMPLES (cont'd)

Sample Location Collection Reason Type A/I OSLD SW SW SW SW Code Date L-11A 07/28/16 Pump found not running; breaker tripped; timer damaged; possibly due to storms in area. Timer was replaced and breaker reset.

L-213-3 09/28/16 OSLD found missing during quarterly exchange.

L-21 12/15/16 No sample; water frozen.

L-40 12/15/16 No sample; water frozen.

L-21 12/22/16 No sample; water frozen.

L-40 12/22/16 No sample; water frozen.

Each program exception was reviewed to understand the causes of the program exception. 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 A new air monitoring location L-11A became operational 14 January 2016, and air monitoring location L-11 was retired on 21 January 2016. OSLO data for both locations continued to be monitored throughout 2016.

Vegetation samples, other than food products, were added to the REMP.

The samples were collected monthly during the growing season from May through October at three (3) separate locations. 13of183

IV.

Results and Discussion A.

Aquatic Environment

1.

Surface Water Samples were taken weekly and composited monthly at two locations (L-21 and L-40). Of these locations only L-40 located downstream, could be affected by LaSalle's effluent releases. The following analyses were performed:

Gross Beta Samples from all locations were analyzed for concentrations of gross beta (Table C-1.1, Appendix C). Gross beta was detected in 23 out of 24 samples with a range of 3.4 to 8.3 pCi/L.

Concentrations detected were consistent with those detected in previous years (Figure C-1, Appendix C). The required LLD was met for all samples.

Tritium Quarterly composites of weekly collections were analyzed for tritium activity (Table C-1.2, Appendix C). Tritium was detected in 4 of 8 samples. The concentrations ranged from 203 to 510 pCi/L.

Concentrations detected were consistent with those detected in previous years (Figure C-2, 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.

Ground/Well Water Quarterly grab samples were collected at two locations (L-27 and L-28). Wells 4, 5 and 6 are associated with L-28. L-27 and L-28 Well 6 could be affected by LaSalle's effluent releases. The following analyses were performed:

Tritium Quarterly grab samples from the locations were analyzed for tritium activity (Table C-11.1, Appendix C). No tritium was detected and the contractually-required 200 pCi/L LLDs were met. 14of183

Gamma Spectrometry Samples from all locations were analyzed for gamma-emitting nuclides (Table C-11.2, Appendix C). No nuclides were detected, and all required LLDs were met.

3.

Fish Fish samples were collected at three locations (L-34, L-35 and L-36) semiannually. Locations L-34 and L-35 could be affected by LaSalle's effluent releases. The following analysis was performed:

Gamma Spectrometry The edible portion of fish samples from both locations was analyzed for gamma-emitting nuclides (Table C-111.1, Appendix C).

Naturally occurring K-40* was found at all stations and ranged from 1,583 to 4,619 pCi/kg wet. No fission or activation products were found.

4.

Sediment Aquatic sediment samples were collected at three locations (L-21, L-40 and L-41) semiannually. Location L-21 is located upstream and is not affected by LaSalle's liquid effluent releases. Locations L-40 and L-41, located downstream, could be affected by LaSalle's effluent releases. The following analysis was performed:

Gamma Spectrometry Sediment samples from the three locations were analyzed for gamma-emitting nuclides (Table C-IV.1, Appendix C). Naturally occurring Be-7* was found at two stations with concentrations ranging from 1211to1441 pCi/L. Naturally occurring K-40* was found at all stations and ranged from 11,570 to 19,560 pCi/kg dry.

Cs-137 was found in 1 control location sample (L-21) with a concentration of 152 pCi/L dry. This concentration is below the required LLD of 180 pCi/L dry. The Cs-137 concentration is consistent with concentrations observed in previous years. Cs-137 is often found in environmental media, such as sediment, from nuclear weapons testing. No additional fission or activation products were found.

Naturally occurring gamma-emitting radionuclides are not included in the Appendix C Tables. 15of183

B.

Atmospheric Environment

1.

Airborne

a.

Air Particulates Continuous air particulate samples were collected from ten locations on a weekly basis. The ten locations were separated into four groups: Group I (onsite) represents locations within the LSCS site boundary (L-03 and L-05),

Group II (near-site) represents the locations near the LSCS site (L-01 and L-06), Group Ill (far-field) represents the locations at an intermediate distance from LSCS (L-04, L-07, L-08, L-11 and L-11A) and Group IV (control) represents the control location at a remote distance (L-10). The following analyses were performed:

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

Detectable gross beta activity was observed at all locations.

Comparison of results among the four groups aid in determining the effects, if any, resulting from the operation of LSCS. The results from the onsite locations (Group I) ranged from 8 to 29E-3 pCi/m3 with a mean of 16E-3 pCi/m3. The results from the near-site location (Group 11) ranged from 9 to 34E-3 pCi/m3 with a mean of 17E-3 pCi/m3. The results from the far-field locations (Group 111) ranged from 7 to 35E-3 pCi/m3 with a mean of 17E-3 pCi/m3. The results from the control location (Group IV) ranged from 10 to 30E-3 pCi/m3 with a mean of 17E-3 pCi/m3. Comparison of the 2016 air particulate data with previous year's data indicate no effects from the operation of LSCS (Figures C-3 through C-8, Appendix C). In addition, comparisons of the weekly mean values for 2016 indicate no notable differences among the four groups.

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

Naturally occurring Be-7*, due to cosmic ray activity, was

Naturally occurring gamma-emitting radionuclides are not included in the Appendix C Tables. 16of183

detected in 36 of 37 samples. These values ranged from 72 to 205 E-3 pCi/m3. Naturally occurring K-40* was detected in one of 37 samples. The concentration was 36E-3 pCi/m3*

All other nuclides were less than the MDC.

b.

Airborne Iodine Continuous air samples were collected from ten locations (L-01, L-03, L-04, L-05, L-06, L-07, L-08, L-10, L-11, and L-11A) and analyzed weekly for 1-131 (Table C-Vl.1, Appendix C). No 1-131 was detected.

2.

Terrestrial

a.

Milk Samples were collected from one location (L-42) biweekly May through October and monthly November through April.

The following analyses were performed:

lodine-131 Milk samples from the location were analyzed for concentrations of 1-131 (Table C-Vll.1, Appendix C). 1-131 was not detected, and the required LLDs were met.

Gamma Spectrometry Each milk sample was analyzed for concentrations of gamma-emitting nuclides (Table C-Vll.2, Appendix C).

Naturally occurring K-40* activity was found in all samples and ranged from 890 to 1,547 pCi/I. No other nuclides were detected, and all required LLDs were met.

b.

Food Products Food product samples were collected at five locations (L-Quad C, L-Quad 1, L-Quad 2, L-Quad 3 and L-Quad 4) when available. Four locations, (L-Quad 1, L-Quad 2, L-Quad 3 and L-Quad 4) could be affected by LaSalle's effluent releases. The following analysis was performed:

Naturally occurring gamma-emitting radionuclides are not included in the Appendix C Tables. 17of183

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

c.

Vegetation Vegetation samples were collected monthly during the growing season from May through October at three locations (L-Veg C, L-ESE1, and L-ESE2). The control location was L-Veg C and was located in the lowest deposition sector (ENE sector) surrounding LaSalle. Various vegetation samples were also collected in the highest deposition sector (ESE sector) surrounding LaSalle. The following analyses were performed:

Gamma Spectrometry Samples from all available locations were analyzed for gamma-emitting nuclides (Table C-Vlll.2, Appendix C). No nuclides were detected, and all required LLDs were met.

Carbon-14 Three of the vegetation samples were analyzed for naturally occurring C-14 (Table C-Vlll.3, Appendix C). Naturally occurring C-14 was found in one sample at a concentration of 1890 pCi/kg wet.

C.

Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Optically Stimulated Luminescence Dosimeters (OSLO). Forty-one OSLO locations were established around the site. Results of OSLO measurements are listed in Tables C-IX.1 to C-IX.3, Appendix C.

All OSLO measurements were at or below 35.0 mrem/quarter, with a range of 19.4 to 35.0 mrem/quarter. A comparison of the Inner Ring, Outer Ring, and Other data to the Control Location data, indicate that the ambient gamma radiation levels from the Control Location L-10 were comparable.

D.

Land Use Survey A Land Use Survey conducted during the August 2016 growing season 18 of 183

around the LaSalle County Station (LSCS) was performed by Environmental Inc. (Midwest Labs) for Exelon Nuclear to comply with Radiological Effluent Control 12.5.2 of the LaSalle's Offsite Dose Calculation Manual. The purpose of the survey was to document the nearest resident, milk producing animal and garden of greater than 500 tt2 in each of the sixteen 22 % degree sectors around the site. The distance and direction of all locations from the LSCS reactor buildings were positioned using Global Positioning System (GPS) technology. There were no changes required to the LSCS REMP as a result of this survey.

The results of this survey are summarized below:

Distance in Miles from the LSCS Reactor Buildings Sector Residence Livestock Milk Farm Miles Miles Miles AN BNNE CNE DENE EE F ESE GSE HSSE JS KSSW LSW MWSW NW PWNW QNW RNNW E.

Errata Data 3.9 4.0 1.6 1.7 2.1 3.5 3.3 3.8 3.2 1.4 1.7 1.8 1.5 0.7 1.0 1.5 1.7 0.9 1.8 1.7 5.1 4.7 5.8 3.0 3.0 4.0 4.5 There is no errata data for 2016.

F.

Summary of Results - Inter-Laboratory Comparison Program 14.2 The primary and secondary laboratories analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, vegetation and water matrices (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: 19 of 183

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, NELAC, state specific PT program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable. The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.

3.

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

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

For the TBE laboratory, 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. 20of183

MAPEP's policy is to evaluate as failed non-reported nuclides that were reported in the previous study. NCR 16-14 1 a. 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. No client samples were affected by this failure.

NCR 16-14 1 b. 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.

No client samples were affected by this failure. 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.

No client samples were affected by this failure. 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 of 9180 had been reported, ERA would have evaluated the result as acceptable. No client samples were affected by this failure.

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 1.4 7. 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 acceptable. No client samples were affected by this failure. NCR 16-35 21 of 183

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. There was no impact to client samples as a result of this failure.

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. There was no impact to client samples as a result of this failure.

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. There was no impact to client samples as a result of this failure.

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. There was no impact to client samples as a result of this failure.

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.

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. There was no impact to client samples as a result of this failure. 22of183

APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT ANNUAL

SUMMARY

23of183

TABLE A*1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LASALLE COUNTY STATION, 2016 NAME OF FACILITY:

LASALLE COUNTY STATION DOCKET NUMBER:

50-373 & 50-37 4 LOCATION OF FACILITY:

MARSEILLES, IL REPORTING PERIOD:

2016 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN(M)

MEAN(M)

STATION#

NON ROUTINE (UNITOF ANALYSES ANALYSES OF DETECTION (F)

(F)

NAME REPORTED MEASUREMENT)

PERFORMED PERFORMED (LLD)

RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS SURFACE WATER GR*B 24 4

6.2 5.6 6.2 L-40 INDICATOR 0

(PCl/LITER)

(12112)

(11/12)

(12112)

ILLINOIS RIVER

DOWNSTREAM 4.2* 8.3 3.4. 7.4 4.2* 8.3 5.2 MILES NNW OF SITE H*l 8

200 310 374 374 L-21 CONTROL 0

(214)

(2/4)

ILLINOIS RIVER AT SENECA* UPSTREAM 203 *417 237. 510 237. 510 4.0 MILES NE OF SITE GAMMA 24 MN-54 15

<LLD

<LLD 0

C0-58 15

<LLD

<LLD 0

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 30

<LLD

<LLD 0

1-131 15

<LLD

<LLD 0

CS*134 15

<LLD

<LLD 0

CS-137 18

<LLD

<LLD 0

BA-140 60

<LLD

<LLD 0

LA-140 15

<LLD

<LLD 0

GROUND WATER H-3 12 200

<LLD

<LLD 0

(PCl/l..ITER)

GAMMA 12 MN-54 15

<LLD

<LLD 0

C0-58 15

<LLD

<LLD 0

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 30

<LLD

<LLD 0

N CS-134 15

<LLD

<LLD 0

.j>,

CS-137 18

<LLD

<LLD 0

0 -

BA-140 60

<LLD

<LLD 0

CXI LA-140 15

<LLD

<LLD 0

(;J (M) The Mean Values are calculated using the positive values (values~ MDC). (F) Fraction of detectable measurement are indicated in parentheses.

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LASALLE COUNTY STATION, 2016 NAME OF FACILITY:

LASALLE COUNTY STATION DOCKET NUMBER:

50.373 & 50-374 LOCATION OF FACILITY:

MARSEILLES, IL REPORTING PERIOD:

2016 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN(M)

MEAN(M)

STATION#

NON ROUTINE (UNITOF ANALYSES ANALYSES OF DETECTION (F)

(F)

NAME REPORTED MEASUREMENT)

PERFORMED PERFORMED (LLD)

RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS FISH GAMMA 12 (PCllKG WET)

MN-54 130

<LLD

<LLD 0

C0-58 130

<LLD

<LLD 0

FE-59 260

<LLD

<LLD 0

C0-60 130

<LLD

<LLD 0

ZN-65 260

<LLD

<LLD 0

NB-95 NA

<LLD

<LLD 0

ZR-95 NA

<LLD

<LLD 0

CS-134 130

<LLD

<LLD 0

CS-137 150

<LLD

<LLD 0

J>

BA-140 NA

<LLD

<LLD 0

I LA-140 NA

<LLD

<LLD 0

I\\)

SEDIMENT GAMMA 6

(PCl/KG DRY)

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-134 150

<LLD

<LLD 0

CS-137 180

<LLD 152 152 L-21 CONTROL 0

(112)

ILLINOIS RIVER AT SENECA* UPSTREAM 4.0 MILES NE OF SITE BA-140 NA

<LLD

<LLD 0

LA-140 NA

<LLD

<LLD 0

N AIR PARTICULATE GR*B 477 10 17 17 22 L-11 INDICATOR 0

0 (E-3 PCVCU.METER)

(424/425)

(53/53)

(3/3)

RANSOM 7-35 10-30 22-24 6.0 MILES S OF SITE ca w

(M) The Mean Values are calculated using the positive values (values l!: MDC). (F) Fraction of detectable measurement are indicated in parentheses.

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LASALLE COUNTY STATION, 2016 NAME OF FACILITY:

LASALLE COUNTY STATION DOCKET NUMBER:

50.373 & 50-37 4 LOCATION OF FACILITY:

MARSEILLES, IL REPORTING PERIOD:

2016 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN(M)

MEAN (M)

MEAN(M)

STATION#

NONROUTINE (UNITOF ANALYSES ANALYSES OF DETECTION (F)

(F)

NAME REPORTED MEASUREMENT)

PERFORMED PERFORMED (LLD)

RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS AIR PARTICULATE GAMMA 37 (E-3 PCVCU.METER)

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 50

<LLD

<LLD 0

CS-137 60

<LLD

<LLD 0

l>

BA-140 NA

<LLD

<LLD 0

I LA-140 NA

<LLD

<LLD 0

(A)

AIR IODINE GAMMA 477 (E-3 PCVCU.METER) 1-131 70

<LLD

<LLD 0

MILK 1-131 18 1

NA

<LLD 0

(PCIA.ITER)

GAMMA 18 MN-54 NA NA

<LLD 0

C0-58 NA NA

<LLD 0

FE-59 NA NA

<LLD 0

C0-60 NA NA

<LLD 0

ZN-65 NA NA

<LLD 0

NB-95 NA NA

<LLD 0

ZR-95 NA NA

<LLD 0

CS-134 15 NA

<LLD 0

N CS-137 18 NA

<LLD 0

O>

BA-140 60 NA

<LLD 0

0 -

LA-140 15 NA

<LLD 0

CJ)

(.,)

(M) The Mean Values are calculated using the positive values (values~ MDC). (F) Fraction of detectable measurement are indicated in parentheses.

TABLE A*1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE LASALLE COUNTY STATION, 2016 NAME OF FACILITY:

LASALLE COUNTY STATION DOCKET NUMBER:

50-373 & 50.374 LOCATION OF FACILITY:

MARSEILLES, IL REPORTING PERIOD:

2016 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)

MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN(M)

MEAN(M)

STATION#

NONROUTINE (UNITOF ANALYSES ANALYSES OF DETECTION (F)

(F)

NAME REPORTED MEASUREMENT}

PERFORMED PERFORMED (LLD)

RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS FOOD PRODUCTS GAMMA 13 (PCllKG WET}

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

1-131 60

<LLD

<LLD 0

CS-134 60

<LLD

<LLD 0

CS-137 BO

<LLD

<LLD 0

BA-140 NA

<LLD

<LLD 0

)>

LA-140 NA

<LLD

<LLD 0

J.

VEGETATION GAMMA 54 (PCllKG WET}

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

1-131 60

<LLD

<LLD 0

CS-134 60

<LLD

<LLD 0

CS-137 BO

<LLD

<LLD 0

BA-140 NA

<LLD

<LLD 0

LA-140 NA

<LLD

<LLD 0

C-14 3

NA 1890

<LLD 1890 L-ESE-1 INIDCATOR 0

(1/2)

<LLD (1/2) 1.3 MILES ESE 0

N DIRECT RADIATION OSLD*QUARTERL Y 338 NA 26.5 23.5 29.1 L-113A-1 INDICATOR 0

(MILLIREMIQTR.)

(330/330)

(818)

(414) 0 -

19.9-35 19.4. 27.7 26.9. 32.2 0.8MILESW ca w

(M} The Mean Values are calculated using the positive values (values C!: MDC}. (F} Fraction of detectable measurement are indicated in parentheses.

Intentionally left blank 28 of 183

APPENDIXB LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS 29of183

TABLE B-1:

Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, LaSalle County Station, 2016 Location Location Description A.

Surface Water L-21 L-40 Illinois River at Seneca, Upstream (control)

Illinois River, Downstream (indicator)

B.

Ground/Well Water L-27 L-28-W4 L-28-W5 L-28-W6 LSCS Onsite Well (indicator)

Marseilles Well (control)

Marseilles Well (indicator)

C.

Milk - bi-weekly I monthly L-42 Biros Farm (control)

D.

Air Particulates I Air Iodine L-01 L-03 L-04 L-05 L-06 L-07 L-08 L-10 L-11 L-11A E.

Fish L-34 L-35 L-36 F.

Sediment L-21 L-40 L-41 Nearsite 1 (indicator)

Onsite 3 (indicator)

Rte. 170 (indicator)

Onsite 5 (indicator)

Nearsite 6 (indicator)

Seneca (indicator)

Marseilles (indicator)

Streator (control)

Ransom (indicator)

LaSalle Cooling Lake (indicator)

Marseilles Pool of Illinois River, Downstream (indicator)

Illinois River, Upstream of Discharge (control)

Illinois River at Seneca, Upstream (control)

Illinois River, Downstream (indicator)

G.

Food Products Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Control H.

Vegetation L-Veg C L-ESE 1 L-ESE 2 Diane Partridge Mike and Gina Welboume Michael Olson Robert Eisers Eugene Clements Control Indicator Indicator B-1 Distance & Direction From Site 4.0 miles NE 5.2 miles NNW 0 miles at station 7.0 miles NNW 6.7 miles NNW 4.1 miles N 14.2 miles E 1.5 miles NNW 1.0 miles ENE 3.2 miles E 0.3 miles ESE 0.4 miles W 5.2 miles NNE 6.0 miles NNW 13.5 miles SW 6.0 miles S 6.0 miles S 2.0 miles E 6.5 miles NNW 4.3 miles NE 4.0 miles NE 5.2milesNNW 4.6 miles N 4.5 miles NE 3.8 miles ESE 1.5milesWSW 4.5milesNW 10.0 miles NW 9.5 miles ENE 1.5 miles ESE 6.0 miles ESE 30 of 183

TABLE B-1:

Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, LaSalle County Station, 2016 Location Location Description I.

Environmental Dosimetrv - OSLO Inner Ring L-101-1 and -2 L-102-1 and -2 L-103-1 and -2 L-104-1 and -2 L-105-1 and -2 L-106-1 and -2 L-107-1 and -2 L-108-1 and -2 L-109-1 and -2 L-110-1 and -2 L-111b-1 and -2 L-112-1 and -2 L-113a-1 and -2 L-114-1 and -2 L-115-1 and -2 L-116-1 and -2 Outer Ring L-201-3 and -4 L-202-3 and -4 L-203-1 and -2 L-204-1 and -2 L-205-1 and -2 L-205-3 and -4 L-206-1 and -2 L-207-1 and -2 L-208-1 and -2 L-209-1 and -2 L-210-1 and -2 L-211-1 and -2 L-212-1 and -2 L-213-3 and -4 L-214-3 and -4 L-215-3 and -4 L-216-3 and -4 L-01 -1 and -2 L-03-1 and -2 L-04-1 and -2 L-05-1 and -2 L-06-1 and -2 L-07-1 and -2 L-08-1 and -2 L-11 -1 and -2 L-11A-1 and -2 Nearsite 1 (indicator)

Onsite 3 (indicator)

Rte. 170 (indicator)

Onsite 5 (indicator)

Nearsite 6 (indicator)

Seneca (indicator)

Marseilles (indicator)

Ransom (indicator)

Control and Special Interest L-10-1 and -2 Streator B-2 Distance & Direction From Site 0.5 miles N 0.6 miles NNE 0.7 miles NE 0.8 miles ENE 0.7 miles E 1.4 miles ESE 0.8 miles SE 0.5 miles SSE 0.6 miles s 0.6 miles SSW 0.8 miles SW 0.9milesWSW 0.8milesW 0.9milesWNW 0.7 miles NW 0.6 miles NNW 4.0 miles N 3.6 miles NNE 4.0 miles NE 3.2 miles ENE 3.2 miles ESE 5.1 miles E 4.3 miles SE 4.5 miles SSE 4.5 miles S 4.0 miles SSW 3.3miles SW 4.5milesWSW 4.0 milesW 4.9 milesW 5.1 miles WNW 5.0 miles NW 5.0miles NNW 1.5miles NNW 1.0 miles ENE 3.2 miles E 0.3 miles ESE 0.4 milesW 5.2 miles NNE 6.0 miles NNW 6.0 miles S 6.0 miles S 13.5 miles SW 31 of183

TABLE B-2:

Sample Medium Surface Water Surface Water Surface Water Ground/Well Water Ground/Well Water Fish Sediment Air Particulates Air Particulates Air Iodine Milk Milk Food Products Vegetation Vegetation OSLO Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, LaSalle County Station, 2016 Analysis Sampling Method Analytical Procedure Number Gamma Monthly composite from TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy weekly grab samples.

Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy TBE, TBE-2008 Gross Alpha and/or gross beta activity in various matrices Gross Beta Monthly composite from Env. Inc., W(DS)-01 Determination of gross alpha and/or gross beta in water weekly grab samples.

(dissolved solids or total residue)

TBE, TBE-2011 Tritium analysis In drinking water by liquid scintillation Tritium Quarterly composite from Env. Inc., T-02 Determination of tritium In water (direct method) weekly grab samples.

Gamma TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy Quarterly grab samples.

Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy TBE, TBE-2011 Tritium analysis In drinking water by liquid scintillation Tritium Quarterly grab samples.

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

Gamma Semi-annual samples TBE-2007 Gamma emitting radioisotope analysis Spectroscopy collected via electroshocking or other techniques Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Gamma Semi-annual TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy grab samples Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy One-week composite of TBE, TBE-2008 Gross Alpha and/or gross beta activity in various matrices Gross Beta continuous air sampling through glass fiber filter paper Env. Inc., AP-02 Determination of gross alpha and/or gross beta In air particulate filters Gamma Quarterly composite of each TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy station Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Bi-weekly composite of TBE, TBE-2007 Gamma emitting radioisotope analysis Gamma Spectroscopy continuous air sampling Env. Inc., 1-131-02 Determination of 1-131 in charcoal canisters by gamma through charcoal filter spectroscopy (batch method)

Bl-weekly grab sample when TBE, TBE-2012 Radioiodine in various matrices 1-131 cows are on pasture.

Monthly all other times Env. Inc., 1-131-01 Determination of 1-131 in milk by an ion exchange Gamma Bi-weekly grab sample when TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy cows are on pasture.

Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Monthly all other times Gamma TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy Annual grab samples.

Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy Gamma TBE, TBE-2007 Gamma emitting radioisotope analysis Spectroscopy Monthly grab samples during Env. Inc., GS-01 Determination of gamma emitters by gamma spectroscopy growing season Carbon-14 Annual grab samples TBE, TBE-2003 Carbon-14 and Tritium in soils, soldis, and biological samples: Harvey Oxidizer Method Optically Quarterly OSLDs comprised Stimulated Luminescence of two Al203:C Landauer Landauer Incorporated Dosimetry Incorporated elements.

B-3 32 of 183

B-4 33of183

Figure B-2 Outer Ring OSLO Locations and Fixed Air Sampling Locations of the LaSalle County Station, 2016 B-5 34 of 183

Figure B-3 Ingestion and Waterborne Exposure Pathway Sample Locations of the LaSalle County Station, 2016 B-6 35 of 183

Intentionally left blank 36of 183

APPENDIXC DATA TABLES AND FIGURES-PRIMARY LABORATORY 37 of 183

Table C-1.1 CONCENTRATIONS OF GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA COLLECTION PERIOD L-21 L-40 01107116 - 01127116 7.4 +/- 2.3 5.7 +/- 2.2 (1) 02/04116 - 02125116 6.4 +/- 2.2 7.9 +/- 2.2 03103116 - 03130116 6.0 +/- 2.4 6.6 +/- 2.5 04107116 - 04128116 6.4 +/- 2.3 6.3 +/- 2.4 05104116 - 05125116 3.4 +/- 2.0 5.5 +/- 2.2 06102116 - 06129116 6.4 +/- 2.1 4.2 +/- 1.9 07107116 - 07128116 3.8 +/- 1.9 6.3 +/- 2.1 08103116 - 08124116 6.0 +/- 2.0 7.7 +/- 2.1 08131116 - 09128116

< 3.1 4.6 +/- 2.3 10106116 - 10127116 4.9 +/- 1.9 8.3 +/- 2.3 11102116 - 11130116 5.3 +/- 2.1 6.4 +/- 2.2 12108116 - 12128116 5.7 +/- 2.2 (1) 4.5 +/- 2.1 (1)

(2) MEAN :I: 2 STD DEV 5.6 +/- 2.4 6.2 +/- 2.7 Table C-1.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA COLLECTION PERIOD L-21 L-40 01/07116 - 03130116

< 177

< 176 (1) 04107116 - 06129116 237 +/- 117 203 +/- 117 07107116 - 09128116 510 +/- 145 417 +/- 139 10106116 - 12128116

< 199 (1)

< 200 (1)

(2) MEAN :I: 2 STD DEV 374 +/- 386 310 +/- 303 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION.

(2) THE MEAN AND 1WO STANDARD DEV/A TION ARE CALCULATED USING THE POSITIVE VALUES (VALUES l!: MDC).

C-1 38of183

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Table C-1.3 COLLECTION SITE PERIOD Mn-54 L-21 01/07/16 - 01/27116

< 2 02/04/16 - 02/25/16 03/03/16 - 03/30/16 04/07/16 - 04/28/16 05104/16 - 05/25/16 06102/16 - 06/29/16 07/07/16 - 07/28/16 08103/16 - 08/24/16 08/31/16 - 09/28/16 10106/16 - 10/27/16 11/02/16 - 11/30/16 12/08/16 - 12/28/16 MEAN L-40 01/07/16 - 01/27/16 02/04/16 - 02/25/16 03/03/16 - 03/30/16 04/07 /16 - 04/28/16 05/04/16 - 05/25/16 06/02/16 - 06/29/16 07/07/16 - 07/28/16 08/03/16 - 08/24/16 08/31/16 - 09/28/16 10/06/16 - 10/27/16 11/02/16 - 11/30/16 12/08/16 - 12/28/16 MEAN

< 3

< 1

<2

< 2

<2

< 2

< 1

< 2

<2

< 2

<2

< 1

<2

< 2

<2

< 2

<2

< 2

<2 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 Co-58

< 2

< 3

< 1

< 2

<2

< 2

<2

< 3

<2

< 3

<2

<2 Fe-59

<5

<7

<2

<3

<5

<4

< 5

<4

<5

<4

<6

<5

< 5

<4

< 5

<4

<6

<4

< 5

<5

< 5

<5 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA Co-60

<2

<3

< 1

< 2

<2

< 1

<3

<2

< 1

<2

< 1

< 2

<2

< 1

< 2

<2 Zn-65

<3

< 6

<2

< 3

<4

<3

<4

<3

<4

< 3

<5

<4

< 3

<4

< 3

<5

<4

< 3

<4

<5 Nb-95

<2

<3

< 1

<2

<3

<2

< 2

<2

<3

<2

< 2

<3

<2 Zr-95

<4

<5

<2

<3

<4

<3

<4

<3

<5

<4

<3

<4

<3

<4

<3

<4

<3

<4

<4 1-131 Cs-134 Cs-137

< 13

< 2

< 10

<7

<6

< 14

< 15

< 13

< 15

< 11

< 13

< 15

< 14

< 12

<8

< 10

<7

< 14

< 15

< 14

< 12

< 15

< 13

< 15

<2

< 1

<2

< 1

<2

< 2

<2

< 1

<2

< 1

<2

< 1

<2

< 1

<2

< 3

< 1

<2

< 1

<2

<2 Ba-140 La-140

< 21

< 7

< 21

< 12

< 11

< 22

< 21

< 20

< 22

< 18

< 20

< 27

< 23

< 19

< 15

< 17

< 14

< 21

< 20

< 25

< 20

< 19

< 21

< 20

< 23

<7

<4

< 8

<8

<7

<6

< 6

<7

< 7 (1)

<5

< 5

<4

< 8

<6

< 8

<7

< 6

<7

< 7 (1)

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-11.1 CONCENTRATIONS OF TRITIUM IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA COLLECTION PERIOD L-27 L-28-W4 L-28-WS L-28-W6 01/19/16 - 01/19/16

< 180

< 181

< 178 04/13/16 - 04/13/16

< 186

< 184

< 190 07/13/16 - 07/13/16

< 166

< 168

< 165 10/12/16 - 10/12/16

< 189

< 191

< 191 MEAN C-3 40of183

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Table C-11.2 COLLECTION SITE PERIOD L-27 01/19/16 - 01/19/16 04/13/16 - 04/13/16 07/13/16 - 07/13/16 10/12116 - 10/12/16 MEAN L-28-W4 04/13/16 - 04/13/16 10/12116 - 10/12116 MEAN L-28-WS 01/19/16 - 01/19/16 07/13/16 - 07/13/16 MEAN L-28-W6 01/19/16 - 01/19/16 04/13/16 - 04/13/16 07/13/16 - 07/13/16 10/12116 - 10/12116 MEAN CONCENTRATIONS OF GAMMA EMITTERS IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140

<4

<8

<4

<8

<4

<7

<4

< 20

<7

< 7

<7

< 15

<7

< 12

<7

< 11

<5

< 8

< 34

< 7

< 6

<6

< 11

< 6

< 14

<5

< 11

< 6

< 27

< 6

< 3

<3

<6

< 3

<5

<4

< 5

<3

<4

< 16

<4

< 5

<9

<5

< 10

<5

<8

< 6

< 5

< 28

< 8

<3

< 3

<7

<3

<6

< 3

< 6

<3

< 4

< 17

< 6

< 8

<8

< 12

<8

<9

<8

< 11

< 8

< 33

< 11

<9

<8

< 18

<8

< 14

<5

< 18

<7

< 7

< 44

< 10

<5

<6

< 13

<6

< 14

<6

< 11

<5

< 6

< 26

< 10

< 6

<5

< 11

<5

< 10

<5

<8

<5

< 5

< 27

< 9

<6

<7

< 14

< 8

< 14

<8

< 12

<8

< 8

< 39

<9

<4

<3

<6

<3

<8

<4

<7

<4

< 4

< 18

<4

0 I

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N a CD w

Table C-111.1 SITE L-34 Largemouth Bass Common Carp Largemouth Bass Bluegill L-35 Freshwater Drum Sma/lmouth Buffalo Sma/lmouth Bass Sma/lmouth Buffalo L-36 Channel Catfish Smallmouth Buffalo Channel Catfish Sma/lmouth Bass COLLECTION PERIOD Mn-54 05/12/16

< 35 05/12/16

< 55 10/13/16

< 46 10/13/16

< 75 MEAN 05/13/16

< 48 05/13/16

< 61 10/14/16

< 74 10/14/16

< 60 MEAN 05/13/16

< 43 05/13/16

< 67 10/14/16

< 33 10/14/16

< 50 MEAN CONCENTRATIONS OF GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PC/KG WET+/- 2 SIGMA Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140

< 38

< 72

< 31

< 89

< 40

< 60

< 24

< 37

< 182

< 46

< 66

< 99

< 53

< 84

< 49

< 92

< 43

< 23

< 351

< 99

< 51

< 126

< 37

< 101

< 63

< 89

< 58

< 47

< 220

< 81

< 76

< 150

< 52

< 202

< 73

< 148

< 64

< 278

< 82

< 35

< 65

< 35

< 103

< 31

< 48

< 26

< 40

< 245

< 67

< 69

< 138

< 68

< 77

< 56

< 117

< 42

< 49

< 428

< 237

< 73

< 148

< 60

< 107

< 61

< 107

< 61

< 79

< 282

< 58

< 65

< 123

< 51

< 145

< 59

< 109

< 67

< 61

< 237

< 75

< 41

< 122

< 51

< 103

< 56

< 82

< 45

< 50

< 323

< 62

< 72

< 158

< 90

< 131

< 77

< 120

< 68

< 79

< 517

< 121

< 44

< 83

< 67

< 94

< 45

< 87

< 60

< 38

< 197

< 69

< 48

< 98

< 55

< 138

< 54

< 105

< 54

< 62

< 213

< 54

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w Table C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PC/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 L-21 05/18/16

< 97

< 85

< 169

< 96

< 190

< 102

< 164

< 75

< 117 10/20/16

< 58

< 66

< 146

< 60

< 125

< 71

< 117

< 50 152 +/- 71 MEAN+/- 2 STD DEV 152 +/- 0 L-40 05/18/16

< 75

< 71

< 174

< 80

< 167

< 87

< 135

< 69

< 96 10/20/16

< 53

< 44

< 151

< 58

< 103

< 63

< 106

< 44

< 66 MEAN L-41 05/18/16

< 85

< 124

< 328

< 64

< 177

< 166

< 226

< 66

< 79 10/11/16

< 50

< 53

< 126

< 56

< 91

< 56

< 91

< 44

< 55 MEAN THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (VALUES C!: MDC)

Ba-140 La-140

< 420

< 144

< 422

< 93

< 374

< 106

< 366

< 96

< 7109

< 2651

< 234

< 92

Table C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF E-3 PCl/CU METER +/- 2 SIGMA COLLECTION GROUP I GROUP II PERIOD L-03 L-05 L-01 L-06 12131/15 - 01/07/16 27 +/- 5 26 +/- 5 24 +/- 5 24 +/- 5 01/07/16 - 01/14/16 17 +/- 4 15 +/- 4 20 +/- 4 17 +/- 4 01/14/16 - 01/21/16 23 +/- 4 22 +/- 4 22 +/- 4 23 +/- 4 01/21/16 - 01/27/16 16 +/- 4 17 +/- 5 23 +/- 5 21 +/- 5 01/27/16 - 02104/16 13 +/- 3 17 +/- 4 16 +/- 4 17 +/- 4 02104/16 - 02110/16 25 +/- 5 24 +/- 5 23 +/- 5 24 +/- 5 02110/16 - 02118/16 15 +/- 4 13 +/- 3 14 +/- 4 14 +/- 4 02118/16 - 02125/16 11 +/- 4 14 +/- 4 12 +/- 4 11 +/- 4 02125/16 - 03/03/16 15 +/- 4 13 +/- 4 17 +/- 4 14 +/- 4 03/03/16 - 03/10/16 19 +/- 4 15 +/- 4 18 +/- 4 14 +/- 4 03/10/16 - 03/17/16 12 +/- 4 12 +/- 4 11 +/- 3 12 +/- 4 03/17/16 - 03/24/16 10 +/- 4 11 +/- 4 13 +/- 4 12 +/- 4 03/24/16 - 03/30/16 12 +/- 4 11 +/- 4 11 +/- 4 13 +/- 4 03/30/16 - 04/07116 15 +/- 4 13 +/- 3 11 +/- 3 14 +/- 4 04/07/16 - 04/13/16 11 +/- 4 11 +/- 4 13 +/- 4 12 +/- 4 04/13/16 - 04/21/16 19 +/- 4 16 +/- 4 16 +/- 4 19 +/- 4 04/21/16 - 04/28/16 15 +/- 4 22 +/- 5 16 +/- 4 16 +/- 4 04/28/16 - 05/04/16 10 +/- 4 9+/-4 10 +/- 4 14 +/- 4 05/04/16 - 05/12116 11 +/- 4 12 +/- 4 14 +/- 4 12 +/- 4 05/12116 - 05/19/16 12 +/- 4 12 +/- 4 14 +/- 4 11 +/- 4 05/19/16 - 05/25/16 17 +/- 5 17 +/- 5 18 +/- 5 16 +/- 5 05/25/16 - 06/02116 15 +/- 4 15 +/- 4 9+/-3 10 +/- 3 06/02116 - 06/09/16 12 +/- 4 14 +/- 4 12 +/- 4 10 +/- 4 06/09/16 - 06/16/16 16 +/- 4 12 +/- 4 18 +/- 4 15 +/- 4 06/16/16 - 06/22116 13 +/- 4 16 +/- 4 (3)

(3) 06/16/16 - 06/23/16 (4)

(4) 14 +/- 3 18 +/- 4 06/22116 - 06/29/16 15 +/- 4 15 +/- 4 (5)

(5) 06/23/16 - 06/29/16 (6)

(6) 18 +/- 4 18 +/- 4 06/29/16 - 07/07/16 15 +/- 4 14 +/- 4 17 +/- 4 15 +/- 4 07/07/16 - 07/13/16 12 +/- 4 16 +/- 4 17 +/- 4 13 +/- 4 07/13/16 - 07/21/16 13 +/- 4 13 +/- 4 15 +/- 4 13 +/- 4 07/21/16 - 07/28/16 15 +/- 4 14 +/- 4 16 +/- 4 16 +/- 4 07/28/16 - 08/03/16 19 +/- 4 20 +/- 5 17 +/- 4 19 +/- 5 08/03/16 - 08/10/16 14 +/- 4 17 +/- 4 19 +/- 4 20 +/- 4 08/10/16 - 08/18/16 17 +/- 3 19 +/- 4 21 +/- 4 22 +/- 4 08/18/16 - 08/24/16 13 +/- 4 12 +/- 4 14 +/- 5 12 +/- 5 08/24/16 - 08/31/16 14 +/- 4 16 +/- 4 14 +/- 4 13 +/- 4 08/31/16 - 09/08/16 11 +/- 3 12 +/- 3 14 +/- 3 12 +/- 3 09/08/16 - 09/15/16 11 +/- 3 19 +/- 4 20 +/- 4 17 +/- 4 09/15/16 - 09/22116 20 +/- 4 20 +/- 4 21 +/- 4 19 +/- 4 09/22116 - 09/28/16 25 +/- 5 29 +/- 5 23 +/- 5 25 +/- 5 09/28/16 - 10/06/16 13 +/- 4 12 +/- 4 13 +/- 3 13 +/- 4 10/06/16 - 10/12116 21 +/- 5 23 +/- 5 27 +/- 5 26 +/- 5 10/12116 - 10/20/16 17 +/- 4 12 +/- 3 16 +/- 4 14 +/- 3 10/20/16 - 10/27/16 8+/-4 12 +/- 4 12 +/- 4 11 +/- 4 10/27/16 - 11/02116 22 +/- 5 21 +/- 5 24 +/- 5 23 +/- 5 11/02116 - 11/10/16 21 +/- 4 23 +/- 4 22 +/- 4 24 +/- 4 11/10/16 - 11/17/16 29 +/- 5 28 +/- 5 34 +/- 5 31 +/- 5 11/17/16 - 11/23/16 22 +/- 5 19 +/- 5 17 +/- 5 25 +/- 5 11/23/16 - 11/30/16 19 +/- 4 21 +/- 4 23 +/- 4 21 +/- 4 11/30/16 - 12108/16 15 +/- 3 15 +/- 3 15 +/- 3 13 +/- 3 12108/16 - 12115/16 16 +/- 4 21 +/- 4 17 +/- 4 15 +/- 4 12115/16 - 12122116 20 +/- 5 21 +/- 5 34 +/- 7 (1) 25 +/- 5 12/22116 - 12128/16 22 +/- 5 20 +/- 5 20 +/- 4 21 +/- 5 12/28/16 - 01/04/17 15 +/- 4 16 +/- 4 15 +/- 4 15 +/- 4 (2) MEAN +/- 2 STD DEV 16 +/- 9 17 +/- 9 17 +/- 11 17 +/- 10 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (VALUES i!: MDC)

(3) SAMPLED ON 06123116 (4) SAMPLED ON 6122116 (5) COLLECTION BEGAN ON 06123116 (6) COLLECTION BEGAN ON 06122116 C-7 44of183

Table C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF E-3 PCl/CU METER +/- 2 SIGMA COLLECTION GROUP Ill GROUP IV PERIOD L-04 L-07 L-08 L-11 (3l L-11A (3l L-10 12131/15 - 01/07/16 24 +/- 5 27 +/- 5 24 +/- 5 22 +/- 5 23 +/- 5 01/07/16 - 01/14/16 13 +/- 4 19 +/- 5 23 +/- 5 22 +/- 5 16 +/- 4 01/14/16 - 01/21/16 20 +/- 4 23 +/- 5 24 +/- 4 24 +/- 4 (3) 22 +/- 4 (3) 21 +/- 4 01/21/16 - 01/27/16 20 +/- 5 19 +/- 5 22 +/- 5 19 +/- 5 17 +/- 4 01/27/16 - 02104/16 17 +/- 4 16 +/- 4 18 +/- 4 17 +/- 4 18 +/- 4 02104/16 - 02110/16 23 +/- 5 20 +/- 5 20 +/- 5 23 +/- 5 24 +/- 5 02110/16 - 02118/16 15 +/- 4 15 +/- 4 15 +/- 4 15 +/- 4 17 +/- 4 02118/16 - 02125/16 9+/-4 13 +/- 4 13 +/- 4 12 +/- 4 10 +/- 3 02125/16 - 03/03/16 13 +/- 4 15 +/- 4 16 +/- 4 14 +/- 4 13 +/- 4 03/03/16 - 03/10/16 18 +/- 4 17 +/- 4 15 +/- 4 13 +/- 4 16 +/- 4 03/10/16 - 03/17/16 12 +/- 4 12 +/- 4 13 +/- 4 9 +/- 3 12 +/- 4 03/17/16 - 03/24116 13 +/- 4 13 +/- 4 12 +/- 4 10 +/- 4 12 +/- 4 03/24/16 - 03/30/16 12 +/- 4 13 +/- 4 9+/-4 11 +/- 4 12 +/- 4 03/30/16 - 04/07/16 12 +/- 3 13 +/- 4 20 +/- 4 15 +/- 4 11 +/- 3 04/07 /16 - 04/13/16 15 +/- 4 12 +/- 4 10 +/- 4 13 +/- 4 13 +/- 4 04/13/16 - 04/21/16 16 +/- 4 18 +/- 4 16 +/- 4 15 +/- 4 18 +/- 4 04/21/16 - 04/28/16 17 +/- 4 18 +/- 4 16 +/- 4 13 +/- 4 18 +/- 4 04/28/16 - 05/04/16 7+/-4 8+/-4 11 +/- 4 9+/-4 10 +/- 4 05/04/16 - 05/12116 12 +/- 4 11 +/- 4 13 +/- 4 11 +/- 4 12 +/- 4 05/12116 - 05/19116 11 +/- 4 9+/-3 13 +/- 4 8+/-4 13 +/- 4 05/19/16 - 05/25/16 11 +/- 4 18 +/- 5 16 +/- 5 18 +/- 5 15 +/- 4 05/25/16 - 06/02116 15 +/- 4 12 +/- 3 15 +/- 4 14 +/- 4 11 +/- 3 06/02/16 - 06/09/16 12 +/- 4 13 +/- 4 13 +/- 4 13 +/- 4 12 +/- 3 06/09/16 - 06/16/16 16 +/- 4 14 +/- 4 18 +/- 4 16 +/- 4 14 +/- 4 06/16/16 - 06/22/16 (4) 15 +/- 4 20 +/- 4 18 +/- 4 16 +/- 4 06/16/16 - 06/23/16 15 +/- 4 (5)

(5)

(5) 06/22/16 - 06/29/16 (6) 16 +/- 4 15 +/- 4 16 +/- 4 18 +/- 4 06/23/16 - 06/29/16 16 +/- 4 (7)

(7)

(7) 06/29/16 - 07 /07 /16 15 +/- 4 13 +/- 4 16 +/- 4 18 +/- 4 16 +/- 4 07/07/16 - 07/13/16 16 +/- 4 12 +/- 4 14 +/- 4 20 +/- 5 17 +/- 4 07/13/16 - 07/21/16 14 +/- 4 15 +/- 4 10 +/- 3 13 +/- 4 (1) 12 +/- 3 07/21/16 - 07/28/16 21 +/- 4 16 +/- 4 17 +/- 4 (1) 11 +/- 6 (1) 07 /28/16 - 08/03/16 23 +/- 5 25 +/- 5 18 +/- 4 17 +/- 4 21 +/- 5 08/03/16 - 08/10/16 19 +/- 4 21 +/- 4 19 +/- 4 22 +/- 4 22 +/- 4 08/10/16 - 08/18/16 21 +/- 4 26 +/- 4 17 +/- 4 22 +/- 4 23 +/- 4 08/18/16 - 08/24116 14 +/- 5 12 +/- 4 12 +/- 5 14 +/- 5 15 +/- 5 08/24/16 - 08/31/16 13 +/- 4 14 +/- 4 16 +/- 4 18 +/- 5 13 +/- 4 08/31/16 - 09/08/16 11 +/- 3 10 +/- 3 14 +/- 4 13 +/- 4 12 +/- 3 09/08/16 - 09/15116 16 +/- 4 17 +/- 4 16 +/- 4 16 +/- 4 17 +/- 4 09/15/16 - 09/22116 18 +/- 4 18 +/- 4 22 +/- 5 22 +/- 5 22 +/- 5 09/22/16 - 09/28116 30 +/- 5 24 +/- 5 27 +/- 5 32 +/- 6 29 +/- 5 09/28/16 - 10/06/16 13 +/- 3 10 +/- 3 13 +/- 4 14 +/- 4 13 +/- 4 10/06/16 - 10/12116 26 +/- 5 23 +/- 5 25 +/- 5 26 +/- 5 25 +/- 5 10/12116 - 10/20116 18 +/- 4 15 +/- 3 17 +/- 4 18 +/- 4 13 +/- 3 10/20/16 - 10/27/16 10 +/- 4 14 +/- 4 13 +/- 4 12 +/- 4 11 +/- 4 10/27/16 - 11/02116 21 +/- 5 22 +/- 5 25 +/- 5 24 +/- 5 22 +/- 5 11/02/16 - 11/10/16 25 +/- 4 20 +/- 4 23 +/- 4 21 +/- 4 22 +/- 4 11/10/16 - 11/17/16 29 +/- 5 33 +/- 5 29 +/- 5 35 +/- 5 30 +/- 5 11/17116 - 11/23/16 18 +/- 5 21 +/- 5 16 +/- 5 21 +/- 5 23 +/- 5 11/23/16 - 11/30/16 22 +/- 4 20 +/- 4 22 +/- 4 22 +/- 4 19 +/- 4 11/30/16 - 12/08/16 16 +/- 3 17 +/- 4 12 +/- 3 14 +/- 3 12 +/- 3 12/08/16 - 12/15116 16 +/- 4 19 +/- 4 15 +/- 4 20 +/- 4 16 +/- 4 12/15/16 - 12122/16 24 +/- 5 28 +/- 5 25 +/- 5 24 +/- 5 27 +/- 5 12/22/16 - 12128/16 27 +/- 5 21 +/- 5 24 +/- 5 22 +/- 5 19 +/- 5 12/28/16 - 01/04/17 14 +/- 3 18 +/- 4 17 +/- 4 19 +/- 4 18 +/- 4 (2) MEAN+/- 2 STD DEV 17 +/- 10 17 +/- 10 17 +/- 9 22 +/- 2 17 +/- 11 17 +/- 10 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (VALUES 2: MDC)

(3) Air monitoring location L-11A became operational on 01114116 and air monitoring location L-11 was retired on 01121116 (4) Sampled on 6123116 (5) Sampled on 6122116 (6) Collection began on 06123116 (7) Collection began on 06122116 C-8 45of 184

0 I

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Table C-V.2 MONTHLY AND YEARLY MEAN VALUES OF GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF E-3 PCl/CU METER+/- 2 SIGMA GROUP 1-0NSITE LOCATIONS GROUP II-NEAR-SITE LOCATIONS GROUP Ill - FAR-FIELD LOCATIONS GROUP IV - CONTROL LOCATION COLLECTION MIN MAX MEAN +/-

COLLECTION MIN MAX MEAN +/-

PERIOD 2SD PERIOD 2SD PERIOD 2SD PERIOD 2SD 12/31/15 - 02/04/16 13 27 19 +/- 10 12/31/15 - 02/04/16 16 24 21 +/- 6 12/31/15 - 02/04/16 13 28 21 +/- 7 12/31/15 - 02/04/16 16 23 19 +/- 6 02/04/16 - 03/03/16 11 25 16 +/- 11 02/04/16 - 03/03/16 11 24 16 +/- 10 02/04/16 - 03/03/16 9

23 16 +/- 8 02/04/16 - 03/03/16 10 24 16 +/- 12 03/03/16 - 03/30/16 10 19 13 +/- 6 03/03/16 - 03/30/16 11 18 13 +/- 5 03/03/16 - 03/30/16 9

18 13 +/- 5 03/03/16 - 03/30/16 12 16 13 +/- 4 03/30/16 - 04/28/16 11 22 15 +/- 8 03/30/16 - 04/28/16 11 19 15 +/- 5 03/30/16 - 04/28/16 10 20 15 +/- 5 03/30/16 - 04/28/16 11 18 15 +/- 7 04/28/16 - 06/02/16 9

17 13 +/- 5 04/28/16 - 06/02/16 9

18 13 +/- 6 04/28/16 - 06/02/16 7

18 12 +/- 6 04/28/16 - 06/02/16 10 15 12 +/- 4 06/02/16 - 06/29/16 12 16 14 +/- 3 06/02116 - 06/29/16 10 18 15 +/- 6 06/02/16 - 06/29/16 12 20 15 +/- 4 06/02/16 - 06/29/16 12 18 15 +/- 6 06/29/16 - 08/03/16 12 20 15 +/- 5 06/29/16 - 08/03/16 13 19 16 +/- 4 06/29/16 - 08/03/16 10 25 16 +/- 7 06/29/16 - 08/03/16 11 21 15 +/- 8 08/03/16 - 08/31/16 12 19 15 +/- 5 08/03/16 - 08/31/16 12 22 17 +/- 8 08/03/16 - 08/31/16 12 26 17 +/- 8 08/03/16 - 08/31/16 13 23 18 +/- 10 08/31/16 - 09/28/16 11 29 18 +/- 14 08/31/16 - 09/28/16 12 25 19 +/- 9 08/31/16 - 09/28/16 10 32 19 +/- 13 08/31/16 - 09/28/16 12 29 20 +/- 14 09/28/16 - 11/02/16 8

23 16 +/- 11 09/28/16 - 11/02/16 11 27 18 +/- 13 09/28/16 - 11/02/16 10 26 18 +/- 11 09/28/16 - 11/02/16 11 25 17 +/- 12 11/02/16 - 11/30/16 19 29 23 +/- 7 11/02/16 - 11/30/16 17 34 25 +/- 11 11/02/16 - 11/30/16 16 35 24 +/- 11 11/02/16 - 11/30/16 19 30 23 +/- 9 11/30/16 - 01/04/17 15 22 18 +/- 6 11/30/16 - 01/04/17 13 34 19 +/- 13 11/30/16 - 01/04/17 12 28 20 +/- 9 11/30/16 - 01/04/17 12 27 19 +/- 11 12/31/15 - 01/04/17 8

29 16 +/- 9 12/31/15 - 01/04/17 9

34 17 +/- 10 12/31/15 - 01/04/17 7

35 17 +/- 10 12/31/15 - 01/04/17 10 30 17 +/- 10

Table C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF E-3 PCl/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 L-01 12131/15 - 03/30/16

< 2

<4

< 21

<3

< 5

<5

< 11

< 3

<2

< 501

< 181 03/30/16 - 06/29/16

<2

<4

< 15

<3

< 8

<7

<6

<3

<2

< 389

< 249 06/29/16 - 09/28/16

<3

<4

<8

<3

<6

<5

<7

<2

<3

< 127

< 62 09/28/16 - 01/04/17

<2

<3

<7

<2

< 5

<2

<5

<2

< 151

< 50 (1)

MEAN L-03 12131/15 - 03/30/16

<4

< 9

< 27

< 3

< 8

<7

< 14

<4

< 842

< 281 03/30/16 - 06/29/16

< 3

<5

< 15

<3

<8

<4

<9

<2

< 2

< 382

< 160 06/29/16 - 09/28/16

<4

< 6

< 17

<3

< 12

<7

< 12

<4

< 200

< 60 09/28/16 - 01/04/17

< 2

< 3

<8

<3

< 5

<4

<6

<2

< 2

< 138

< 67 MEAN 0

I..a.

L-04 12131/15 - 03/30/16

< 3

<5

< 19

<4

<7

<6

< 12

<3

< 3

< 613

< 173 0

03/30/16 - 06/29/16

< 3

< 6

< 21

<4

<8

<6

< 11

<3

< 3

< 595

< 161 06/29/16 - 09/28/16

< 3

<2

< 12

<3

<5

<3

<5

<2

< 117

< 56 09/28/16 - 01/04/17

< 2

< 3

< 11

<3

<5

<7

<2

< 186

< 48 MEAN L-05 12131/15 - 03/30/16

< 3

<4

< 13

<2

< 6

<4

<8

<2

< 522

< 135 03/30/16 - 06/29/16

< 2

<4

< 13

<2

<5

<4

< 6

<2

< 261

< 145 06/29/16 - 09/28/16

<2

<4

<6

< 3

< 7

< 3

<6

<2

< 125

< 49 09/28/16 - 01/04/17

< 2

<4

< 10

<2

<4

<3

< 6

<2

< 2

< 183

< 73 MEAN L-06 12131/15 - 03/30/16

< 3

<7

< 23

<4

< 10

<7

< 12

< 3

<3

< 1903

< 983 03/30/16 - 06/29/16

< 3

< 5

< 13

<2

<6

< 5

<8

<2

< 2

< 368

< 219 06/29/16 - 09/28/16

<4

<5

< 13

<3

< 10

<4

<8

<4

< 3

< 174

< 82 09/28/16 - 01/04/17

<2

< 3

< 12

<3

<6

<3

<8

<2

< 214

< 97

-..J MEAN 0 -

CJ) c.>

(1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

0 I

~

(JI a se Table C-V.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF E-3 PCl/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 L-07 12/31/15 - 03/30/16

<3

< 5

< 17

<2

<8

<5

< 9

< 2

<2 03/30/16 - 06/29/16

< 3

<6

< 20

< 3

< 10

<7

< 10

<3

<3 06/29/16 - 09/28/16

< 2

<4

<5

<2

<7

<4

<7

<3

<2 09/28/16 - 01/04/17

< 3

< 5

< 14

< 3

< 10

<4

< 10

< 3

<3 MEAN L-08 12/31/15 - 03/30/16

< 3

<4

< 17

<3

<7

<5

<9

<2

<2 03/30/16 - 06/29/16

<2

< 11

<2

< 5

<4

<6

<2

<2 06/29/16 - 09/28/16

< 2

<4

<6

<3

<5

<3

<5

<2

<2 09/28/16 - 01/04/17

< 2

<3

< 10

<2

<4

< 3

<7

<2

<2 MEAN L-10 12/31/15 - 03/30/16

<2

<4

< 11

< 2

<5

< 5

<7

<2

< 2 03/30/16 - 06/29/16

< 3

<4

< 17

<3

<8

<5

<9

< 3

<2 06/29/16 - 09/28/16

<4

<5

< 16

<5

< 14

<6

< 11

<4

< 3 09/28/16 - 01/04/17

< 2

<4

< 11

<3

<8

<4

<7

<3

<2 MEAN L-11 12/31/15 - 01/21/16

< 14

< 23

< 54

<6

< 20

< 25

< 33

< 10

<8 MEAN L-11A 12/31115 - 03/30/16

< 2

<4

< 16

<2

<7

<5

< 9

<2

< 3 03/30/16 - 06/29/16

<4

<7

< 20

<3

<8

<6

< 10

<4

<3 06/29/16 - 09/28/16

< 3

< 10

<2

<6

<4

< 6

< 3

<2 09/28/16 - 01/04/17

< 3

<4

< 13

<2

< 6

< 3

<6

<2

<3 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) Air monitoring location L-11A became operational on 01/14116 and air monitoring location L-11 was retired on 01121116 Ba-140 La-140

< 457

< 234

< 523

< 214

< 143

< 44

< 188

< 102

< 423

< 221

< 293

< 138

< 136

< 59

< 161

< 63

< 381

< 89

< 437

< 147

< 208

< 86 (1)

< 194

< 68

< 16240

< 5444 (2)

< 566

< 164 (2)

< 606

< 226

< 136

< 58 (1)

< 204

< 60

Table C-Vl.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF E-3 PCl/CU METER+/- 2 SIGMA COLLECTION GROUP I GROUP II GROUP Ill GROUP IV PERIOD L-03 L-05 L-01 L-06 L-04 L-07 L-08 L-11 (2l L-11A (2l L-10 12131/15 - 01/07/16

< 60

< 27

< 60

< 38

< 68

< 66 01/07/16 - 01/14/16

< 34

< 33

< 34

< 35

< 34

< 39

< 38 01/14/16 - 01/21/16

< 48

< 50

< 18

< 48

< 27

< 61

< 62 (2)

< 60 01/21/16 - 01/27/16

< 56

< 58

< 21

< 57

< 59

< 54

< 52

< 50

< 50 01127/16 - 02104/16

< 13

< 12

<5

< 12

< 14

< 13

< 13 02104/16 - 02110/16

< 23

< 53

< 51

< 53

< 56

< 54 02110/16 - 02118/16

< 52

< 53

< 51

< 63

< 53

< 67

< 64

< 35

< 62 02118/16 - 02125/16

< 59

< 57

< 52

< 61

< 57

< 53

< 52

< 20 02125/16 - 03/03/16

< 44

< 43

< 22

< 44

< 53

< 54

< 52

< 51 03103116 - 03110116

< 42

< 44

< 41

< 47

< 42

< 49

< 48

< 49

< 26 03110/16 - 03/17/16

< 17

< 18

< 17

< 19

<8

< 18

< 18 03/17/16 - 03/24116

< 22

< 8

< 22

< 26

< 25

< 26

< 26 03124/16 - 03/30/16

< 66

< 65

< 67

< 27

< 69

< 53

< 52

< 51 03/30/16 - 04/07/16

< 60

< 22

< 59

< 62

< 60

< 58

< 60

< 58

< 56 04/07/16 - 04/13/16

< 62

< 64

< 60

< 58

< 62

< 58

< 61

< 60

< 22 04113/16 - 04/21/16

< 47

< 45

< 68

< 47

< 28

< 67

< 64

< 64 04/21/16 - 04/28/16

< 36

< 37

< 36

< 37

< 34

< 34 04128116 - 05104/16

< 48

< 47

< 62

< 47

< 66

< 65

< 67

< 25 05104/16 - 05/12116

< 32

< 31

< 39

< 31

< 40

< 39

< 14 05/12/16 - 05119/16

< 45

< 46

< 43

< 65

< 44

< 64

< 67

< 66

< 63 05119/16 - 05/25/16

< 66

< 65

< 19

< 65

< 49

< 51

< 50

< 45 05125/16 - 06/02116

< 59

< 60

< 57

< 59

< 57

< 58

< 25

< 20 06/02116 - 06109/16

< 56

< 55

< 28

< 55

< 60

< 63

< 24

< 57 06109/16 - 06/16/16

< 66

< 68

< 64

< 63

< 66

< 60

< 62

< 23 06/16/16 - 06/22/16

< 70

< 69 (3)

(3)

(3) < 68

< 69

< 29

< 64 06116116 - 06123116 (4)

(4) < 56

< 55

< 52 (4)

(4)

(4) 06122116 - 06/29/16

< 55

< 56 (5)

(5)

(5) < 43

< 45

< 43

< 42 06/23/16 - 06/29/16 (6)

(6) < 62

< 20

< 64 (6)

(6)

(6) 06129/16 - 07/07/16

< 65

< 66

< 36

< 70

< 65

< 53

< 51 07/07/16 - 07/13/16

< 28

< 29

< 28

< 41

< 29

< 42

< 43

< 21

< 39 07/13/16 - 07/21/16

< 50

< 51

< 50

< 23

< 49

< 53

< 54

< 55 (1)

< 51 07/21/16 - 07/28/16

< 16

< 31

< 30

< 28

< 29 (1)

< 69 (1) 07 /28/16 - 08/03/16

< 32

< 34

< 33

< 31

< 33

< 31

< 12

< 32 08103116 - 08110116

< 46

< 48

< 46

< 15

< 47

< 39

< 40

< 38 08110/16 - 08/18/16

< 59

< 64

< 63

< 54

< 61

< 52

< 53

< 21

< 50 08/18/16 - 08124/16

< 62

< 67

< 28

< 67

< 65

< 56

< 58

< 57

< 57 08124/16 - 08/31/16

< 23

< 68

< 67

< 69

< 66

< 64

< 65

< 62 08/31/16 - 09/08/16

< 53

< 55

< 29

< 55

< 53

< 60

< 62

< 62 09108/16 - 09115116

< 59

< 62

< 60

< 16

< 58

< 41

< 42

< 43

< 43 09115/16 - 09/22116

< 53

< 57

< 29

< 55

< 65

< 67

< 66

< 66 09/22/16 - 09/28/16

< 63

< 67

< 22

< 66

< 58

< 56

< 58

< 58 09128116 - 10106116

< 32

< 33

< 31

< 11

< 31

< 27

< 28

< 29 10/06/16 - 10/12116

< 31

< 32

< 31

< 41

< 32

< 41

< 42

< 14 10/12116 - 10/20/16

< 38

< 40

< 16

< 39

< 32

< 33

< 34 10120/16 - 10/27/16

< 36

< 38

< 37

< 14

< 37

< 36

< 38

< 37

< 38 10/27/16 - 11/02116

< 64

< 67

< 27

< 68

< 63

< 64

< 63

< 34 11102/16 - 11/10116

< 19

< 46

< 45

< 47

< 47 11/10/16 - 11/17/16

< 63

< 66

< 65

< 29

< 63

< 65

< 66

< 66 11/17/16 - 11/23/16

< 58

< 59

< 61

< 25

< 59

< 64

< 66

< 65

< 66 11123116 - 11130/16

< 52

< 54

< 53

< 46

< 55

< 18

< 46

< 46 11/30/16 - 12108/16

< 58

< 60

< 24

< 60

< 58

< 47

< 49

< 47

< 47 12108/16 - 12115/16

< 59

< 61

< 24

< 60

< 59

< 51

< 52

< 52 12115/16 - 12122116

< 47

< 49

< 32 (1) < 50

< 49

< 28

< 55

< 57

< 55 12122116 - 12128/16

< 45

< 51

< 20

< 47

< 54

< 57

< 58 12128116 - 01/04117

< 47

< 48

< 59

< 46

< 60

< 62

< 22

< 59 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION (2) Air monitoring location L-11A became operational on 01114116 and air monitoring location L-11 was retired on 01121116 (3) Sampled on 06123116 (4) Sampled on 06122116 (5) Collection began on 06123116 (6) Collection began on 06122116 C-12 49of184

Table C-Vll.1 CONCENTRATIONS OF 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA COLLECTION CONTROL FARM PERIOD L-42 01/07/16 (1) 02/04/16

< 0.5 03/03/16

< 0.7 04/07/16

< 0.7 05/04/16

< 0.5 05/19/16

< 0.7 06/02/16

< 0.9 06/16/16

< 0.8 06/29/16

< 0.4 07/13/16

< 0.7 07/28/16

< 0.8 08/10/16

< 0.7 08/24/16

< 0.7 09/08/16

< 0.4 09/22116

< 0.6 10/06/16

< 0.9 10/20/16

< 0.7 11/02/16

< 0.8 11/30/16

< 0.7 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-13 50of183

n I

~

tn... a...

co c.>

Table C-Vll.2 COLLECTION SITE PERIOD L-42 01/07/16 02/04/16 03/03/16 04/07/16 05/04/16 05/19/16 06/02/16 06/16/16 06/29/16 07/13/16 07128/16 08/10/16 08/24/16 09/08/16 09/22/16 10/06/16 10/20/16 11/02/16 11/30/16 Mn-54 (1)

< 7

<9

< 9

<7

<4

<5

< 10

<7

<9

< 6

<6

< 7

<8

< 5

<7

< 7 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 (1)

(1)

< 6

< 20

<7

< 18

<7

< 12

<6

< 8

< 34

< 11

< 9

< 20

<9

< 18

< 8

< 16

<7

<9

< 41

< 14

<9

< 20

<4

< 21

<9

< 17

<9

< 8

< 43

< 13

< 8

< 15

<7

< 16

< 8

< 12

<7

<8

< 31

<6

<5

< 11

<5

<9

<5

< 9

<3

<5

< 45

< 12

<7

< 13

<6

< 14

< 6

< 12

<6

< 37

< 10

< 12

< 23

< 12

< 26

< 12

< 18

< 10

<9

< 47

< 15

<9

< 16

<9

< 13

<6

< 11

<7

< 45

< 13

< 8

< 17

<8

< 18

<7

< 10

<8

<9

< 46

< 12

<9

< 25

< 10

< 28

< 10

< 17

<8

< 10

< 59

< 14

< 8

< 15

<6

< 16

<7

< 12

<7

< 35

<9

< 7

< 16

< 6

< 14

<8

< 12

<7

< 8

< 38

< 11

<8

< 19

<7

< 16

<6

< 10

< 6

<8

< 31

< 10

< 9

< 15

<9

< 18

<7

< 14

<6

< 9

< 32

< 10

< 7

< 19

<8

< 20

<9

< 16

<8

< 34

< 10

< 6

< 14

<5

< 12

<6

< 10

<5

< 47

< 15

<8

< 17

<7

< 14

<7

< 12

<7

<8

< 30

< 11

< 5

< 15

< 6

< 15

<7

< 10

<5

< 31

<9

n I.....

en U1 "' a CD t.l Table C-Vlll.1 SITE L-QUAD CONTROL Potatoes Cabbage L-QUAD 1 Red beets Cabbage Potatoes L-QUAD 2 Rhubarb leaves Horseradish L-QUAD 3 Pumpkin Squash Beets L-QUAD4 Red beets Cabbage Onions COLLECTION PERIOD 08/25/16 08/25/16 MEAN 08/24/16 08/24/16 08/24/16 MEAN 07/13/16 07/13/16 MEAN 09/08/16 09/08/16 08/24/16 MEAN 07/21/16 07/21/16 07/21/16 MEAN CONCENTRATIONS OF GAMMA EMITTERS IN FOOD PRODUCT SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/KG WET+/- 2 SIGMA Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

< 23

< 22

< 58

< 28

< 57

< 26

< 37

< 56

< 20

< 23

< 140

< 38

< 22

< 23

< 44

< 21

< 47

< 27

< 42

< 57

< 22

< 21

< 139

< 46

< 17

< 19

< 46

< 18

< 38

< 20

< 35

< 56

< 17

< 18

< 130

< 39

< 17

< 19

< 42

< 18

< 40

< 20

< 33

< 59

< 16

< 18

< 124

< 39

< 14

< 16

< 38

< 16

< 30

< 18

< 25

< 56

< 15

< 17

< 117

< 26

< 35

< 79

< 38

< 84

< 36

< 59

< 57

< 29

< 42

< 161

< 54

< 36

< 34

< 71

< 33

< 69

< 34

< 57

< 40

< 30

< 36

< 142

< 46

< 14

< 38

< 15

< 32

< 16

< 19

< 25

< 15

< 16

< 67

< 24

< 12

< 13

< 34

< 17

< 35

< 15

< 25

< 22

< 14

< 69

< 12

< 8

< 19

<8

< 18

<9

< 15

< 27

<8

< 9

< 56

< 15

< 33

< 39

< 93

< 39

< 88

< 36

< 72

< 56

< 37

< 40

< 172

< 46

< 30

< 25

< 66

< 30

< 73

< 34

< 51

< 56

< 31

< 34

< 151

< 32

< 34

< 35

< 73

< 36

< 59

< 28

< 58

< 48

< 27

< 29

< 125

< 34

Table C-Vlll.2 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 L-VEG C Vegetation 05/24/16

< 20

< 19

< 43

< 17

< 44

< 22

< 33

< 59

< 19

< 21

< 128

< 36 Vegetation 05/24/16

<8

< 9

< 23

< 8

< 20

< 10

< 16

< 44

< 9

<8

< 81

< 22 Vegetation 05/24/16

<8

< 9

< 21

<8

< 19

<9

< 16

< 42

<8

< 81

< 21 Grass 06/23/16

< 10

< 24

< 10

< 20

< 12

< 19

< 53

< 10

< 9

< 97

< 27 Field Grass 06123/16

<8

< 9

< 21

< 8

< 16

<9

< 16

< 51

<7

<8

< 88

< 22 Carpet Weed 06/23/16

<9

< 9

< 23

<8

< 21

< 11

< 17

< 49

<8

< 10

< 90

< 23 Cardinal Flower Leaves 07/21/16

< 34

< 73

< 36

< 75

< 34

< 59

< 57

< 34

< 36

< 158

< 49 Meadow Leaves 07121116

< 28

< 25

< 51

< 27

< 55

< 26

< 46

< 43

< 26

< 28

< 126

< 32 Tomato Leaves 07/21/16

< 33

< 35

< 57

< 30

< 72

< 37

< 61

< 58

< 38

< 36

< 171

< 42 Field clover 08118/16

< 22

< 26

< 53

< 24

< 55

< 25

< 48

< 55

< 23

< 25

< 158

< 46 Carpet weed 08/18/16

< 19

< 45

< 24

< 44

< 18

< 29

< 41

< 16

< 20

< 111

< 33 Ash leaves 08/18/16

< 15

< 32

< 14

< 31

< 17

< 27

< 39

< 16

< 90

< 27 Milkweed Sp.

09/15/16

< 11

< 10

< 23

< 11

< 24

< 12

< 19

< 20

< 11

< 56

< 15 Carpet weed 09/15/16

< 30

< 27

< 58

< 29

< 59

< 30

< 48

< 55

< 28

< 29

< 152

< 42 Dogwood leaves 09/15/16

< 26

< 24

< 53

< 24

< 54

< 27

< 45

< 50

< 26

< 133

< 36 Dandelion greens 10/12/16

< 15

< 16

< 33

< 16

< 35

< 18

< 28

< 29

< 16

< 18

< 83

< 22 0

Field clover 10/12/16

< 31

< 63

< 33

< 65

< 35

< 55

< 56

< 34

< 33

< 153

< 50 I

Dogwood leaves 10/12/16

< 37

< 73

< 38

< 77

< 40

< 63

< 59

< 36

< 39

< 186

< 57

~

a>

MEAN L-ESE 1 Vegetation 05/24/16

< 13

< 31

< 13

< 30

< 14

< 24

< 41

< 13

< 93

< 24 Vegetation 05/24/16

< 18

< 40

< 17

< 39

< 19

< 32

< 52

< 17

< 18

< 120

< 32 Vegetation 05/24/16

< 12

< 13

< 32

< 13

< 27

< 14

< 22

< 59

< 11

< 106

< 24 Dogwood Leaves 06/22/16

< 6

<8

< 20

<7

< 18

< 8

< 14

< 55

<5

<7

< 86

< 28 Grass 06/22/16

<2

<3

<7

<6

<3

< 5

< 15

<2

< 25

<7 Grass 06/22/16

<5

<6

< 13

<5

< 11

< 6

< 10

< 34

< 5

<5

< 59

< 17 Purple cornflower leaves 07/21/16

< 34

< 33

< 78

< 37

< 70

< 35

< 58

< 59

< 32

< 36

< 148

< 47 Carpet weed 07/21/16

< 30

< 27

< 58

< 29

< 66

< 30

< 54

< 44

< 29

< 30

< 132

< 44 Dogwood Leaves 07/21/16

< 36

< 39

< 76

< 36

< 76

< 39

< 61

< 56

< 39

< 168

< 46 Mullein weed 08/18/16

< 25

< 58

< 28

< 58

< 28

< 47

< 55

< 24

< 25

< 148

< 47 Purple cornflower leaves 08/18/16

< 13

< 14

< 30

< 14

< 30

< 15

< 26

< 33

< 14

< 86

< 26 Arrowroot aster leaves 08/18/16

< 22

< 23

< 46

< 22

< 44

< 22

< 37

< 55

< 21

< 20

< 126

< 38 Mullein weed 09/15/16

< 29

< 31

< 60

< 31

< 66

< 34

< 56

< 58

< 29

< 31

< 160

< 35 t11 Carpet weed 09/15/16

< 29

< 62

< 32

< 58

< 30

< 50

< 60

< 29

< 31

< 154

< 42 w

9.

Looststrife weed 09/15/16

< 31

< 65

< 33

< 61

< 32

< 52

< 59

< 30

< 32

< 165

< 49 Mullein weed 10/12/16

< 27

< 28

< 57

< 29

< 55

< 30

< 47

< 50

< 29

< 28

< 145

< 35 00 w

Hackberry leaves 10/12/16

< 33

< 66

< 34

< 70

< 35

< 57

< 59

< 30

< 35

< 164

< 52 Elm leaves 10/12/16

< 33

< 32

< 68

< 37

< 67

< 38

< 59

< 35

< 34

< 153

< 49 MEAN

(')

I...a.

~

9....

CJ) c.>

Table C-Vlll.2 COLLECTION SITE PERIOD L-ESE 2 Vegetation 05/24/16 Vegetation 05/24/16 Vegetation 05/24/16 Grass 06/23/16 Grass 06/23/16 Grass 06/23/16 Dandelion greens 07/21/16 Broadleaf plantain 07/21/16 Field clover 07/21/16 Field clover 08/18/16 Dandelion greens 08/18/16 Soy leaves 08/18/16 Field clover 09/15/16 Milkweed Sp.

09/15/16 Soy leaves 09/15/16 Field clover 10/12/16 Dandelion greens 10/12/16 Curly dock 10/12/16 MEAN CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/KG WET+/- 2 SIGMA Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

<8

< 10

< 26

< 10

< 24

< 10

< 18

< 47

< 8

<8

< 84

< 22

<9

< 11

< 28

< 10

< 22

< 11

< 20

< 43

<8

< 10

< 84

< 22

<8

<9

< 23

<9

< 21

< 11

< 17

< 49

<8

< 10

< 82

< 23

<8

< 10

< 21

<7

< 13

<9

< 15

< 58

<7

<8

< 101

< 24

< 7

<9

< 19

<7

< 15

<9

< 15

< 52

<7

< 8

< 88

< 21

<7

< 18

<7

< 15

<8

< 14

< 41

< 6

<7

< 73

< 23

< 12

< 25

< 13

< 28

< 12

< 21

< 20

< 11

< 13

< 54

< 17

< 42

< 35

< 64

< 38

< 81

< 37

< 63

< 52

< 34

< 42

< 164

< 42

< 22

< 25

< 53

< 24

< 57

< 29

< 48

< 45

< 25

< 122

< 34

< 19

< 21

< 45

< 23

< 44

< 22

< 37

< 54

< 21

< 24

< 127

< 34

< 16

< 37

< 17

< 36

< 18

< 29

< 38

< 15

< 17

< 96

< 29

< 14

< 31

< 13

< 30

< 14

< 27

< 33

< 13

< 14

< 81

< 25

< 23

< 47

< 22

< 48

< 24

< 39

< 43

< 23

< 24

< 118

< 38

< 28

< 56

< 27

< 62

< 31

< 50

< 52

< 27

< 28

< 141

< 41

< 21

< 20

< 39

< 18

< 43

< 22

< 38

< 45

< 23

< 22

< 111

< 26

< 16

< 15

< 29

< 14

< 33

< 17

< 28

< 31

< 18

< 17

< 84

< 20

< 33

< 32

< 64

< 27

< 69

< 34

< 57

< 59

< 32

< 36

< 165

< 46

< 21

< 20

< 43

< 21

< 43

< 22

< 33

< 36

< 20

< 22

< 101

< 29

Table C-Vlll.3 CONCENTRATIONS OF CARBON-14 IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF PCl/LITER +/- 2 SIGMA SITE L-VEG-C L-ESE-1 L-ESE-2 COLLECTION PERIOD 10/12/16 10/12/16 10/12/16 C-18 C-14

< 150 1890 +/- 223

< 877 55of183

Table C-IX.1 QUARTERLY OSLO RESULTS FOR LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF MILLIREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN-MAR APR-JUN JUL-SEP OCT-DEC CODE

+/-2S.D.

L-01-1 27.0 + 2.9 25.3 27.0 28.8 27.0 L-01-2 27.9 + 5.0 24.3 29.6 29.6 28.0 L-03-1 26.6 + 2.4 (1) 25.2 27.2 27.3 L-03-2 26.1 + 6.7 (1) 22.3 27.5 28.5 L-04-1 26.2 + 2.5 25.2 25.1 27.0 27.5 L-04-2 26.3 + 6.1 22.9 25.6 26.2 30.3 L-05-1 25.4 + 3.5 23.4 25.2 27.7 25.2 L-05-2 25.5 + 4.4 23.2 24.1 27.4 27.4 L-06-1 26.7 + 2.5 25.2 26.5 28.2 27.0 L-06-2 26.3 + 3.8 24.3 25.1 28.4 27.3 L-07-1 25.8 + 3.6 23.7 25.4 25.8 28.1 L-07-2 26.4 + 3.4 24.1 26.1 27.6 27.8 L-08-1 25.7 + 5.8 22.4 24.3 28.8 27.3 L-08-2 27.3 + 3.6 26.8 25.1 28.0 29.4 L-10-1 24.0 + 6.9 19.4 23.6 27.7 25.1 L-10-2 23.1 + 4.5 20.3 22.4 25.4 24.4 L-11-1 23.1 + 5.8 21.4 19.9 26.1 24.9 L-11-2 24.0 + 5.8 20.6 22.5 26.4 26.3 L-11A-1 24.8 + 5.2 22.7 22.5 27.7 26.3 L-11A-2 25.1 + 3.8 23.1 23.9 27.2 26.1 L-101-1 27.4 + 6.4 25.0 24.4 31.0 29.0 L-101-2 27.6 + 5.4 25.5 25.1 29.0 30.6 L-102-1 27.5 + 3.8 24.9 28.5 27.5 29.2 L-102-2 28.8 + 5.5 26.3 27.2 32.5 29.1 L-103-1 25.3 + 5.3 22.3 23.8 27.1 27.9 L-103-2 26.0 + 3.8 23.5 25.8 28.0 26.8 L-104-1 25.8 + 5.1 22.5 25.2 28.3 27.2 L-104-2 25.4 + 6.4 21.4 24.4 28.7 27.1 L-105-1 26.7 + 6.0 22.5 27.3 27.5 29.6 L-105-2 27.7 + 5.6 24.1 26.9 29.5 30.3 L-106-1 26.6 + 4.0 24.0 26.0 27.8 28.5 L-106-2 26.0 + 5.6 23.0 24.3 28.8 28.0 L-107-1 27.1 + 5.0 25.2 24.9 30.1 28.2 L-107-2 27.9 + 3.9 26.1 26.3 29.4 29.8 L-108-1 25.9 + 5.0 24.1 23.4 28.2 27.9 L-108-2 23.1 + 3.8 21.0 22.5 23.1 25.6 L-109-1 26.1 + 8.6 21.2 23.8 29.6 29.9 L-109-2 26.4 + 1.9 26.0 25.3 26.9 27.5 L-110-1 27.7 + 7.3 23.9 25.2 30.2 31.3 L-110-2 26.5 + 8.7 23.3 23.4 26.6 32.6 L-112-1 26.0 + 5.0 23.8 23.8 27.9 28.3 L-112-2 27.7 + 5.2 25.9 25.2 28.8 30.8 L-114-1 27.0 + 4.1 24.7 26.0 29.3 28.1 L-114-2 27.6 + 8.1 23.3 24.9 30.7 31.3 L-115-1 26.3 + 6.5 23.5 23.4 28.7 29.4 L-115-2 25.3 + 5.9 22.5 24.5 24.6 29.4 L-116-1 25.2 + 3.5 23.7 23.6 26.7 26.6 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-19 56of183

Table C-IX.1 QUARTERLY OSLO RESULTS FOR LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF MILLIREM/QUARTER +/- 2 STANDARD DEVIATIONS STATION MEAN JAN-MAR APR-JUN JUL-SEP OCT-DEC CODE

+/-2S.D.

L-116-2 25.0 + 5.8 21.9 23.2 28.2 26.5 L-201-3 23.4 + 5.9 20.1 21.8 25.6 26.2 L-201-4 26.5 + 5.6 23.3 25.1 29.4 28.3 L-202-3 25.4 + 4.1 22.8 27.8 25.8 25.2 L-202-4 23.7 + 4.8 20.7 22.9 25.9 25.4 L-203-1 27.2 + 4.8 24.0 26.7 28.9 29.1 L-203-2 26.0 + 9.0 22.6 21.6 30.0 29.8 L-204-1 26.8 + 3.6 24.9 25.6 28.4 28.2 L-204-2 27.8 + 4.9 25.0 26.8 28.6 30.7 L-205-1 24.4 + 2.3 22.8 24.4 25.4 25.1 L-205-2 27.2 + 7.0 22.7 27.4 31.3 27.4 L-205-3 26.0 + 4.3 23.3 26.6 25.6 28.4 L-205-4 25.9 + 4.8 23.9 23.9 27.2 28.6 L-206-1 26.8 + 5.3 23.5 26.2 29.8 27.5 L-206-2 28.8 + 9.7 24.0 26.0 30.0 35.0 L-207-1 26.3 + 5.9 23.8 23.7 28.5 29.1 L-207-2 25.6 + 4.8 24.4 22.9 27.1 28.1 L-208-1 27.0 + 3.6 25.8 25.9 29.6 26.6 L-208-2 28.1 + 4.4 24.9 28.9 30.0 28.4 L-209-1 26.7 + 4.9 25.0 24.4 29.7 27.6 L-209-2 27.2 + 2.9 (1) 25.5 28.1 27.9 L-210-1 29.1 + 3.5 27.6 27.6 31.2 29.8 L-210-2 26.7 + 3.6 25.6 24.7 28.6 27.7 L-211-1 28.1 + 4.8 26.5 25.7 29.3 30.8 L-211-2 27.8 + 4.3 24.6 28.4 29.0 29.1 L-212-1 28.9 + 3.6 (1) 26.9 30.4 29.5 L-212-2 27.0 + 4.7 23.8 27.2 27.3 29.5 L-213-3 24.9 + 4.0 23.5 (1)

(1) 26.3 L-213-4 25.6 + 5.5 23.4 23.0 27.6 28.3 L-214-3 26.3 + 1.2 25.4 26.6 26.8 26.4 L-214-4 27.0 + 9.7 22.7 24.0 33.5 27.6 L-215-3 27.3 + 5.1 24.7 25.6 29.6 29.4 L-215-4 27.1 + 3.6 24.6 26.9 28.3 28.5 L-216-3 27.0 + 4.7 24.6 26.6 30.2 26.7 L-216-4 27.6 + 4.6 24.6 27.3 30.2 28.1 L-1118-1 26.5 + 6.0 24.4 24.0 30.5 27.2 L-1118-2 27.3 + 6.7 23.7 25.3 29.0 31.0 L-113A-1 29.1 + 4.6 26.9 27.8 32.2 29.3 L-113A-2 27.0 + 4.3 24.2 27.9 26.7 29.2 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-20 57 of 183

TABLE C-IX.2 MEAN QUARTERLY OSLO RESULTS FOR THE INNER RING, OUTER RING, OTHER AND CONTROL LOCATIONS FOR LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF MILLIREM/QUARTER +/- 2 STANDARD DEVIATIONS OF THE STATION DATA COLLECTION INNER RING OUTER RING OTHER CONTROL PERIOD

+/-2S.D.

JAN-MAR 23.9 +/- 3.0 24.0 +/- 3.0 23.7 +/- 3.1 19.9 +/- 1.3 APR-JUN 25.1 +/- 3.1 25.6 +/- 3.7 24.7 +/- 4.2 23.0 +/- 1.7 JUL-SEP 28.5 +/- 3.9 28.7 +/- 3.7 27.5 +/- 2.0 26.6 +/- 3.3 OCT-DEC 28.9 +/- 3.3 28.2 +/- 3.8 27.3 +/- 2.7 24.8 +/- 1.0 TABLE C-IX.3

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR LASALLE COUNTY STATION, 2016 RESULTS IN UNITS OF MILLIREM/QUARTER SAMPLES PERIOD PERIOD LOCATION ANALYZED MINIMUM MAXIMUM INNER RING 128 21.0 32.6 OUTER RING 132 20.1 35.0 OTHER 70 19.9 30.3 CONTROL 8

19.4 27.7 INNER RING STATIONS-L-101-1, L-101-2, L-102-1, L-102-2, L-103-1, L-103-2, L-104-1, L-104-2, L-105-1, L-105-2, L-106-1, L-106-2, L-107-1, L-107-2, L-108-1, L-108-2, L-109-1, L-109-2, L-110-1, L-110-2, L-1118-1, L-1118-2, L-112-1, L-112-2, L-113A-1, L-113A-2, L-114-1, L-114-2, L-115-1, L-115-2, L-116-1, L-116-2 OUTER RING STATIONS - L-201-3, L-201-4, L-202-3, L-202-4, L-203-1, L-203-2, L-204-1, L-204-2, L-205-1, L-205-2, L-205-3, L-205-4, L-206-1, L-206-2, L-207-1, L-207-2, L-208-1, L-208-2, L-209-1, L-209-2, L-210-1, L-210-2, L-211-1, L-211-2, L-212-1, L-212-2, L-213-3, L-213-4, L-214-3, L-214-4, L-215-3, L-215-4, L-216-3, L-216-4 OTHER STATIONS - L-01-1, L-01-2, L-03-1, L-03-2, L-04-1, L-04-2, L-05-1, L-05-2, L-06-1, L-06-2, L-07-1, L-07-2, L-08-1, L-08-2, L-11-1, L-11-2, L-11A-1, L-11A-2 CONTROL STATIONS - L-10-1, L-10-2 C-21 PERIOD MEAN

+/-2S.D.

26.6

+/-

5.4 26.7

+/-

5.2 25.9

+/-

4.5 23.5

+/-

5.5 58of183

FIGURE C-1 Surface Water - Gross Beta - Stations L-21 (C) and L-40 Collected in the Vicinity of LSCS, 2005 - 2016 s

(.J CL 14.0 12.0 10.0 8.0 6.0 4.0 2.0 L-21 (C) Illinois River at Seneca 0.0 ------------------t--------1 01-27-05 01-21-08 01-14-11 01-07-14 12-31-16 L-40 Illinois River Downstream 12.0 10.0 8.0 6.0 4.0 2.0 0.0 ------------t-----------4 01-27-05 01-21-08 01-14-11 01-07-14 12-31-16 C-22 59of183

FIGURE C-2 Surface Water - Tritium - Stations L-21 (C) and L-40 Collected in the Vicinity of LSCS, 2005 - 2016 L-21 Illinois River at Seneca 2000 1600 1200

..J i3 a.

800 400 0

03-31-05 03-08-08 02-14-11 01-22-14 12-30-16 L-40 Illinois River Downstream 2000 1600 1200

~

u

a.

800 400 0

03-31-05 03-08-08 02-14-11 01-22-14 12-30-16 C-23 60of183

FIGURE C-3 Air Particulate - Gross Beta - Stations L-01 and L-03 Collected in the Vicinity of LSCS, 2005 - 2016 M

.E c:;

a..

M Cjl w 0...

L-01 Nearsite No. 1 60.0 50.0 M

40.0

§

~ 30.0 q

~ 20.0 10.0 0.0 +-----+-----+------+-------t 01-06-05 01-07-08 01-07-11 01-07-14 01-07-17 L-03 Onsite No. 3 60.0 50.0 40.0 30.0 20.0 10.0 0.0 +--------------------

01-06-05 01-07-08 01-07-11 01-07-14 01-07-17 C-24 61 of 183

FIGURE C-4 Air Particulate - Gross Beta - Stations L-05 and L-06 Collected in the Vicinity of LSCS, 2005 - 2016 60.0 50.0

.., 40.0

.E 0 CL 30.0 a w 20.0 a...

10.0 0.0 01-06-05 70.0 60.0 50.0

§

~ 40.0

~ 30.0 w

~ 20.0 10.0 L-05 Onsite No. 5 01-07-08 01-07-11 01-07-14 01-07-17 L-06 Nearsite No. 6 0.0 --------------------!

01-06-05 01-07-08 01-07-11 01-07-14 01-07-17 C-25 62 of 183

FIGURE C-5 Air Particulate - Gross Beta - Station L-10 {C)

Collected in the Vicinity of LSCS, 2005 - 2016 60.0 50.0 C')

40.0

§ (J

CL 30.0 C') q

~ 20.0 10.0 L-10 (C) Streator 0.0 ----------------------1 01-06-05 01-07-08 01-07-11 01-07-14 01-07-17 C-26 63of183

FIGURE C-6 Air Particulate - Gross Beta - Stations L-04 and L-07 Collected in the Vicinity of LSCS, 2005 - 2016 L-04 Rte. 170 60.0 50.0 C')

40.0

.E

~ 30.0 C') q

~ 20.0 10.0 0.0 - ------------------t 07-07-05 60.0 50.0

~ 40.0

~ 30.0 C')

0 w 0

20.0 10.0 05-22-08 04-07-11 02-20-14 01-05-17 L-07 Seneca 0.0 --------- ------- ---t 07-07-05 05-22-08 04-07-11 02-20-14 01-05-17 C-27 64 of 183

FIGURE C-7 Air Particulate - Gross Beta - Stations L-08 and L-11 Collected in the Vicinity of LSCS, 2005 - 2016 60.0 50.0 C')

40.0

~

0 a. 30.0 C')

0 w 0

20.0 10.0 L-08 Marseilles 0.0 -------------1----------1 07-07-05 05-22-08 04-07-11 02-20-14 01-05-17 L-11 Ransom (1) 60.0 50.0 C')

40.0

§ 0

30.0

a.

C')

Cjl w 20.0 0...

10.0 0.0 07-07-05 02-26-08 10-17-10 06-07-13 01-27-16 (1) Air monitoring station L-11 was retired on 01121116 C-28 65of183

FIGURE C-8 Air Particulate - Gross Beta - Station L-11A Collected in the Vicinity of LSCS, 2016 - 2017 40.0 30.0 M

§

~ 20.0 M q w

0

~ 10.0 L-11A Ransom 0.0 --------------+-----+

01-21-16 03-31-16 06-09-16 08-18-16 10-27-16 01-05-17 C-29 66of183

APPENDIX D INTER-LABORATORY COMPARISON PROGRAM 67 of 183

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)

TBE/Analyiics 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 pCl/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 68of183

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE20F3)

Identification Reported Known Ratio (c)

Month/Year Number Matrix Nuclide Units Value (a)

Value (b)

TBE/Analy!ics 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 69 of 183

TABLE D-1 ANALYTICS ENVIRONMENTAL RADIOACTIVITY CROSS CHECK PROGRAM TELEDYNE BROWN ENGINEERING ENVIRONMENTAL SERVICES (PAGE30F3)

Identification Reported Known Ratio (c)

MonthNear Number Matrix Nuclide Units Value (a)

Value (b)

TBE/Analyiics December 2016 E11702 AP Ce-141 pCi 91.7 97.7 Cr-51 pCi 210 192.0 Cs-134 pCi 122 122 Cs-137 pCi 93.9 86.4 Co-58 pCi 92 100 Mn-54 pCi 93.7 88.5 Fe-59 pCi 84.9 84.5 Zn-65 pCi 176 167 Co-60 pCi 151 122 E11702 AP Sr-89 pCi 79.1 92 Sr-90 pCi 10 12.5 E11703 Water Fe-55 pCi/L 2180 1800 (a) Teledyne Brown Engineering reported result.

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

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

(d) Analytics evaluation based on TBE internal QC limits: A= Acceptable, reported result falls within ratio limits of 0.80-1. 20.

W= Acceptable with warning, reported result falls within 0.70-0.80or1.20-1.30. 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 0.94 1.09 1.00 1.09 0.92 1.06 1.00 1.05 1.24 0.86 0.80 1.21 Evaluation (d)

A A

w A

A w

70 of 183

TABLE D-2 DOE's MIXED ANAL YTE 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 March 2016 16-MaW34 Water Am-241 Sq/L 0.008 (1)

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

Mn-54 Sq/sample 0.0150 (1)

Sr-90 Sq/sample 0.301 (1)

Zn-65 Sq/sample 10.500 9.6 6.7-12.5 September 2016 16-MaW35 Water Am-241 Sq/L 0.626 0.814

.570-1058 Ni-63 Sq/L 12.4 17.2 12.0-22.4 Pu-238 Sq/L 1.23 1.13 0.79-1.47 Pu-239/240 Bq/L 0.0318 0.013 (1) 16-MaS35 Soil Ni-63 Bq/kg 724 990 693-1287 Sr-90 Bq/kg 747 894 626-1162 16-RdF35 AP U-234/233 Sq/sample 0.160 0.15 0.105-0.195 U-238 Sq/sample 0.157 0.156 0.109-0.203 16-RdV35 Vegetation Cs-134 Sq/sample

-0.103 (1)

Cs-137 Sq/sample 5.64 5.54 3.88-7.20 Co-57 Sq/sample 7.38 6.81 4.77-8.85 Co-60 Sq/sample 4.81 4.86 3.40-6.32 Mn-54 Sq/sample 7.4 7.27 5.09-9.45 Sr-90 Sq/sample 0.774 0.80 0.56-1.04 Zn-65 Sq/sample 5.46 5.4 3.78-7.02 (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 0-4 Evaluation (c)

A A

A N(4)

A w

A A

71 of183

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

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

Value (b)

May 2016 RAD-105 Water Sr-89 pCi/L 48.9 48.2 Sr-90 pCi/L 25.0 28.5 Ba-133 pCi/L 53.1 58.8 Cs-134 pCi/L 40.9 43.3 Cs-137 pCl/L 84.8 78.4 Co-60 pCi/L 108 102 Zn-65 pCi/L 226 214 Gr-A pCi/L 38.9 62.7 Gr-B pCi/L 41.9 39.2 1-131 pCi/L 24.1 26.6 U-Nat pCi/L 4.68 4.64 H-3 pCi/L 7720 7840 November 2016 RAD-107 Water Sr-89 pCi/L 43.0 43.3 Sr-90 pCi/L 30.0 33.6 Ba-133 pCi/L 47.8 54.9 Cs-134 pCl/L 72.9 81.8 Cs-137 pCi/L 189 210 Co-60 pCi/L 58.4 64.5 Zn-65 pCi/L 243 245 Gr-A pCi/L 37.2 68.4 Gr-B pCi/L 35.1 33.9 1-131 pCi/L 23.5 26.3 U-Nat pCi/L 49.2 51.2 H-3 pCi/L 918 9820 MRAD-25 AP Gr-A pCi/Filter 56.8 71.2 (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 Iha Warning Urnits. N=not acceptable. Reported result falls Acceptance Limits 37.8-55.6 20.7-33.1 48.7 -64.9 34.6-47.6 70.6-88.9 91.8-114 193 - 251 32.9 - 77.8 26.0 -46.7 22.1 - 31.3 3.39-5.68 6790- 8620 33.4-50.5 24.6-38.8 45.4-60.7 67.0-90.0 189-233 58.0-73.4 220-287 35.9-84.5 22.1-41.6 21.9-31.0 41.6-56.9 8540-10800 23.9-111 outside of the Control Urnits. CE=check for Error. Reported result falls within the Control Umits and outside of the Warning Umit.

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

A A

A N(5)

A 72 of 183

TABLE D-4 ERA STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM*

MRAD Study, ENVIRONMENTAL, INC., 2016 Concentration a Laboratory ERA Control Lab Code b Date Anal~sis 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 Pass 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 73of183

TABLE 0-4 ERA STATISTICAL

SUMMARY

PROFICIENCY TESTING PROGRAM*

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 e 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.

0-7 74of183

TABLE D-5 Lab Code b MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAS0-1053 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 8

MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-989 MAW-893 MAW-893 MAW-896 MAAP-1056 MAAP-1056 MAAP-1057 MAAP-1057 MAAP-1057 Reference Date 2/1/2016 211/2016 2/1/2016 211/2016 211/2016 211/2016 211/2016 211/2016 211/2016 211/2016 2/1/2016 211/2016 2/1/2016 2/1/2016 2/1/2016 2/1/2016 2/1/2016 211/2016 211/2016 2/1/2016 2/1/2016 211/2016 2/1/2016 211/2016 2/1/2016 211/2016 2/1/2016 2/1/2016 2/1/2016 211/2016 2/1/2016 211/2016 211/2016 211/2016 211/2016 211/2016 2/1/2016 211/2016 2/1/2016 211/2016 2/1/2016 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

ENVIRONMENTAL, INC., 2016 Analysis Ni-63 Sr-90 Tc-99 Cs-134 Cs-137 Co-57 Co-60 Mn-54 Zn-65 K-40 Am-241 Pu-238 Pu-239/240 U-234/233 U-238 Am-241 H-3 Ni-63 Sr-90 Tc-99 Cs-134 Cs-137 Co-57 Co-60 Mn-54 Zn-65 K-40 Fe-55 Ra-226 Pu-238 Pu-239/240 U-234/233 U-238 Gross Alpha Gross Beta 1-129 Gross Alpha Gross Beta Sr-90 Cs-134 Cs-137 Laboratory result 1,206 +/- 20 0.65 +/- 1.27 0.1 +/- 5.5 908 +/- 26 0.10 +/- 6.20 1058 +/- 26 1229 +/- 28 1235 +/- 43 753 +/- 64 753+/-140 79 +/- 6 73.9 +/- 9.2 0.76 +/- 1.34 45.0 +/- 5.1 129 +/- 9 O.Q18 +/- 0.015 0.2 +/- 2.8 12.8 +/- 2.7 8.70 +/- 1.20

-1.1 +/- 0.6 15.5 +/- 0.3 23.7 +/- 0.5 1.38 +/- 0.12 12.5 +/- 0.3 12.2 +/- 0.4 15.7 +/- 0.7 288 +/-5 17.3 +/- 7.0 0.710 +/- 0.070 1.280 +/- 0.110 0.640 +/- 0.080 1.39 +/- 0.12 1.43 +/- 0.12 0.600 +/- 0.050 2.10 +/-0.06 3.67 +/- 0.20 0.39 +/- 0.05 1.03 +/- 0.07 1.34 +/- 0.15

-0.01 +/- 0.03 2.57 +/- 0.10 0-8 Concentration a Known Activity 1250 0.00 0.0 1030 0.00 992 1190 1160 692 607 103 63.6 0.21 45.9 146 0.00 0.0 12.3 8.74 0.0 16.1 21.2 0.00 11.8 11.1 13.6 251 16.2 0.718 1.244 0.641 1.48 1.53 0.673 2.15 3.85 1.20 0.79 1.38 0.00 2.30 Control Limits c 875 - 1625 NAC NA c 721 -1339 NAC 694 -1290 833 - 1547 812 -1508 484 - 900 425 - 789 72 -134 44.5 - 82.7 NAd 32.1 - 59.7 102 -190 NA c NAC 8.6 - 16.0 6.12 - 11.36 NAC 11.3 +/- 20.9 14.8 - 27.6 NA c 8.3 -15.3 7.8 -14.4 9.5 -17.7 176 - 326 11.3 -21.1 0.503 - 0.933 0.871 +/- 1.617 0.449 - 0.833 1.04 -1.92 1.07 -1.99 0.202 -1.144 1.08 - 3.23 2.70 - 5.01 0.36 - 2.04 0.40 -1.19 0.97+/-1.79 NAC 1.61 - 2.99 Acceptance Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass 15 of 183 (Page 1of3)

TABLE D-5 Reference Lab Code b Date MAAP-1057 2/1/2016 MAAP-1057 211/2016 MAAP-1057 211/2016 MAAP-1057 2/1/2016 MAAP-1057 2/1/2016 MAAP-1057 2/1/2016 MAAP-1057 211/2016 MAAP-1057 211/2016 MAAP-1057 211/2016 MAVE-1050 211/2016 MAVE-1050 2/1/2016 MAVE-1050 2/1/2016 MAVE-1050 2/1/2016 MAVE-1050 211/2016 MAVE-1050 211/2016 MAS0-478o' 8/1/2016 MAS0-47809 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4 780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780 8/1/2016 MAS0-4780h 8/1/2016 MAS0-4780h 8/1/2016 MAW-4776 8/1/2016 MAVE-4782 8/1/2016 MAVE-4782 8/1/2016 MAVE-4782 8/1/2016 MAVE-4782 8/1/2016 MAVE-4782 8/1/2016 MAVE-4782 8/1/2016 MAAP-4784 8/1/2016 MAAP-4784 8/1/2016 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

ENVIRONMENTAL, INC., 2016 Analysis Co-57 Co-60 Mn-54 Zn-65 Am-241 Pu-238 Pu-239/240 U-234/233 U-238 Cs-134 Cs-137 Co-57 Co-60 Mn-54 Zn-65 Ni-63 Ni-63 Sr-90 Tc-99 Cs-134 Cs-137 Co-57 Co-60 Mn-54 Zn-65 K-40 Am-241 Pu-238 Pu-239/240 U-233/234 U-238 1-129 Cs-134 Cs-137 Co-57 Co-60 Mn-54 Zn-65 Sr-90 Cs-134 Laboratory result 3.01 +/- 0.06 4.28 +/-0.10 4.90 +/- 0.13 4.09 +/-0.18 0.059 +/- 0.015 0.066 +/- 0.020 0.074 +/- 0.020 0.151 +/- 0.026 0.160 +/- 0.026 9.83 +/-0.19 6.06 +/-0.19 13.8 +/- 0.2 0.022 +/- 0.040 0.009 +/- 0.044 10.67 +/- 0.39 648 +/- 14 902 +/- 46 757 +/- 16 559 +/- 12 0.93 +/- 2.92 1061 +/- 12 1178 +/- 8 841 +/- 9 0.69 +/- 2.53 724 +/- 19 566 +/- 52 0.494 +/- 0.698 69.7 +/- 7.4 53.9 +/- 6.3 46.8 +/- 3.9 46.6 +/- 3.9 4.40 +/- 0.20

-0.01 +/- 0.05 6.18 +/- 0.20 8.13 +/- 0.16 5.30 +/-0.15 8.08 +/- 0.24 6.24 +/- 0.36 1.18 +/- 0.10 1.58 +/- 0.08 D-9 Concentration a Known Activity 2.94 4.02 4.53 3.57 0.0805 0.0637 0.099 0.165 0.172 10.62 5.62 11.8 0.00 0.000 9.60 990 990 894 556 0.00 1067 1190 851 0.00 695 588 0.000 70.4 53.8 122 121 4.54 0.00 5.54 6.81 4.86 7.27 5.40 1.03 2.04 Control Limits c Acceptance 2.06 - 3.82 Pass 2.81 - 5.23 Pass 3.17 - 5.89 Pass 2.50 - 4.64 Pass 0.0564 - 0.1047 Pass 0.0446 - 0.0828 Pass NA d Pass 0.116-0.215 Pass 0.120 - 0.224 Pass 7.43 -13.81 Pass 3.93 - 7.31 Pass 8.3 - 15.3 Pass NA c Pass NA c Pass

6. 70 - 12.50 Pass 693 - 1287 693 - 1287 626 -1162 389 - 723 NAC 747 - 1387 833 -1547 596 -1106 NAC 487 -904 412 - 764 NAC 49.3 - 91.5 37.7 - 69.9 85 -159 85 -157 3.18 - 5.90 NA c 3.88 - 7.20 4.77 -8.85 3.40 - 6.32 5.09 - 9.45 3.78 - 7.02 0.72 -1.34 1.43 - 2.65 Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass 16 of 183 (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 Anal~sis Laboratory result Activity Limits c MMP-4784 8/1/2016 Cs-137 1.85 +/- 0.09 1.78 1.25 - 2.31 MMP-4784 8/1/2016 Co-57 2.39 +/- 0.52 2.48 1.74 -3.22 MMP-4784 8/1/2016 Co-60 3.22 +/- 0.08 3.26 2.28 -4.24 MMP-4784 8/1/2016 Mn-54 2.82 +/-0.12 2.75 1.93 - 3.58 MMP-4784 8/1/2016 Zn-65

-0.015 +/- 0.062 0.00 NAC MMP-4784 8/1/2016 Am-241

-0.001 +/- 0.006 0.00 NA c MMP-4784 8/1/2016 Pu-238 0.075 +/- 0.022 0.069 0.049 - 0.090 MMP-4784 8/1/2016 Pu-239/240 0.048 +/- 0.015 0.054 0.038 - 0.070 MMP-4784 8/1/2016 U-234/233 0.151 +/- 0.036 0.150 0.105-0.195 MMP-4784 8/1/2016 U-238 0.147 +/- 0.034 0.156 0.109 - 0.203 MAW-4778 8/1/2016 H-3 365 +/- 11 334 234 -434 MAW-4778 8/1/2016 Fe-55 23.6+/-16.3 21.5 15.1+/-28.0 MAW-4778 8/1/2016 Ni-63 17.0 +/- 2.8 17.2 12.0 +/- 22.4 MAW-4778 8/1/2016 Sr-90 0.17 +/- 0.28 0.00 NA c MAW-4778 8/1/2016 Tc-99 9.50 +/- 0.41 11.60 8.10 -15.10 MAW-4778 8/1/2016 Cs-134 22.6 +/- 0.4 23.9 16.7 -31.1 MAW-4778 8/1/2016 Cs-137 0.018 +/- 0.117 0.00 NAC MAW-4778 8/1/2016 Co-57 27.6 +/- 0.2 27.3 19.1 +/- 35.5 MAW-4778 8/1/2016 Co-60 0.018 +/- 0.090 0.00 NA c MAW-4778 8/1/2016 Mn-54 16.2 +/- 0.4 14.8 10.4 -19.2 MAW-4778 8/1/2016 Zn-65 19.3 +/- 0.7 17.4 12.2 - 22.6 MAW-4778 8/1/2016 K-40 286 +/-6 252 176 - 328 MAW-4778 8/1/2016 Ra-226 1.48 +/- 0.09 1.33 0.93 - 1.73 MAW-4778 8/1/2016 Pu-238 1.09 +/- 0.13 1.13 0.79 -1.47 MAW-4778 8/1/2016 Pu-239/240 0.003 +/- 0.011 0.016 NA d MAW-4778 8/1/2016 U-234/233 1.80 +/- 0.13 1.86 1.30 - 2.42 MAW-4778 8/1/2016 U-238 1.77 +/- 0.13 1.92 1.34 -2.50 MAW-4778 8/1/2016 Am-241 0.678 +/- 0.086 0.814 0.570 +/- 1.058

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

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

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

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

Acceptance Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass

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.

g 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.

0-10 Z7 of 183 (Page 3 of 3)

TABLE D-6 lnterlaboratory Comparison Crosscheck Program, Environmental Resource Associates (ERA) 8 RAD Study, ENVIRONMENTAL, INC., 2016 Concentration (eCitq 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 7nt2015 Co-60 65.1 +/- 5.8 59.9 53.9 - 68.4 Pass SPW-2845 7nt2015 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 8 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.

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

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