BSEP 17-0038, Annual Radiological Environmental Operating Report - 2016

Annual Radiological Environmental Operating Report - 2016

ML17131A068
Person / Time
Site:	Brunswick
Issue date:	05/10/2017
From:	Wooten B Duke Energy Progress
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
BSEP 17-0038
Download: ML17131A068 (270)

Text

( -, DUKE Brunswick Nuclear Plant P.O. Box 10429 ENERGYe Southport, NC 28461 May 10, 2017 Serial: BSEP 17-0038 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

Brunswick Steam Electric Plant, Unit Nos. 1 and 2 Renewed Facility Operating License Nos. DPR-71 and DPR-62 Docket Nos. 50-325 and 50-324 Annual Radiological Environmental Operating Report - 2016 Ladies and Gentlemen:

In accordance with Technical Specification (TS) 5.6.2 for the Brunswick Steam Electric Plant (BSEP), Unit Nos. 1 and 2, Duke Energy Progress, LLC, is submitting the enclosed Radiological Environmental Operating Report for 2016.

No regulatory commitments are contained in this submittal. Please refer any questions regarding this submittal to Mr. Lee Grzeck, Manager - Regulatory Affairs, at (910) 457-2487.

Sincerely,

~1- 1l. j/~

Bryan B. Wooten Director - Organizational Effectiveness Brunswick Steam Electric Plant MAT/mat

Enclosure:

Annual Radiological Environmental Operating Report - 2016

U.S. Nuclear Regulatory Commission Page 2 of 2 cc (with enclosure):

U.S. Nuclear Regulatory Commission, Region II ATTN: Ms. Catherine Haney, Regional Administrator 245 Peachtree Center Ave, NE, Suite 1200 Atlanta, GA 30303-1257 U.S. Nuclear Regulatory Commission ATTN: Mr. Andrew Hon (Mail Stop OWFN 8G9A) (Electronic Copy Only) 11555 Rockville Pike Rockville, MD 20852-2738 U.S. Nuclear Regulatory Commission ATTN: Ms. Michelle P. Catts, NRC Senior Resident Inspector 8470 River Road Southport, NC 28461-8869 Chair - North Carolina Utilities Commission (Electronic Copy Only)

P.O. Box 29510 Raleigh, NC 27626-0510 swatson@ncuc.net Mr. W. Lee Cox, III, Section Chief (Electronic Copy Only)

Radiation Protection Section North Carolina Department of Health and Human Services 1645 Mail Service Center Raleigh, NC 27699-1645 lee.cox@dhhs.nc.gov

BSEP 17-0038 Enclosure Annual Radiological Environmental Operating Report - 2016

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT DUKE ENERGY PROGRESS, LLC BRUNSWICK STEAM ELECTRIC PLANT 2016

TABLE OF CONTENTS 1.0 Executive Summary . . . . . . . . . . . . 1-1 2.0 Introduction . . . . . . . . . . . . . 2-1 2.1 Site Description and Sample Locations . . . . . . . 2-1 2.2 Scope and Requirements of the REMP . . . . . . . 2-2 2.3 Statistical and Calculational Methodology . . . . . . . 2-3 2.3.1 Estimation of the Mean Value . . . . . . . . 2-3 2.3.2 Lower Limit of Detection and Minimum Detectable Activity . . 2-3 2.3.3 Trend Identification . . . . . . . . . . 2-4 3.0 Interpretation of Results . . . . . . . . . . . 3-1 3.1 Airborne Radioiodine and Particulates . . . . . . . 3-1 3.2 Surface Water . . . . . . . . . . . . 3-4 3.3 Ground Water . . . . . . . . . . . . 3-6 3.4 Milk/Broadleaf Vegetation. . . . . . . . . . 3-7 3.5 Fish and Invertebrates . . . . . . . . . . 3-9 3.6 Shoreline Sediment . . . . . . . . . . . 3-9 3.7 Direct Gamma Radiation . . . . . . . . . . 3-10 3.7.1 Environmental TLD . . . . . . . . . 3-10 3.8 Land Use Census . . . . . . . . . . . 3-15 3.8.1 Purpose of Land Use Census. . . . . . . . 3-15 3.8.2 Methodology. . . . . . . . . . . 3-15 3.8.3 Land Use Census Results . . . . . . . . 3-16 4.0 Quality Assurance . . . . . . . . . . . . 4-1 4.1 Sample Collection . . . . . . . . . . 4-1 4.2 Sample Analysis . . . . . . . . . . . 4-1 4.3 Dosimetry Analysis . . . . . . . . . . . 4-1 4.4 Laboratory Equipment Quality Assurance . . . . . . . 4-1 4.4.1 Daily Quality Control . . . . . . . . . 4-1 4.4.2 Calibration Verification . . . . . . . . . 4-1 4.4.3 Batch Processing . . . . . . . . . . 4-1 4.5 Duke Energy Interlaboratory Comparison Program . . . . . 4-2 4.5.1 Duke Energy Interlaboratory Program . . . . . . 4-2 4.5.2 Eckert & Ziegler Analytics Cross Check Program . . . . 4-2 4.5.3 ERA Proficiency Testing . . . . . . . . . 4-3 4.6 State of North Carolina Intercomparison Program . . . . . 4-4 4.7 TLD Intercomparison Program . . . . . . . . . 4-4 4.7.1 Nuclear Technology Services Intercomparison Program . . . 4-4 4.8 General Engineering Laboratory, LLC (GEL) . . . . . . 4-5 APPENDICES Appendix A: Environmental Sampling and Analysis Procedures . . . . A-1 I. Change of Sampling Procedures . . . . . . . . A-2 II. Description of Analysis Procedures . . . . . . . . A-2 III. Change of Analysis Procedures . . . . . . . . . A-3 IV. Sampling and Analysis Procedures . . . . . . . . A-3 A.1 Airborne Particulate and Radioiodine . . . . . . A-3 A.2 Surface Water . . . . . . . . . . A-4 A.3 Ground Water . . . . . . . . . . . A-4 A.4 Broadleaf Vegetation . . . . . . . . . A-5 i

Appendix A Continued:

A.5 Fish and Invertebrates. . . . . . . . . . A-5 A.6 Shoreline Sediment . . . . . . . . . . A-6 A.7 Direct Gamma Radiation (TLD) . . . . . . . A-6 A.8 Annual Land Use Census . . . . . . . . A-6 Appendix B: Radiological Environmental Monitoring Program - Summary of Results B-1 Radiological Environmental Monitoring Program Data Summary. . . B-2 Footnotes to Appendix B. . . . . . . . . . . B-4 Appendix C: Sampling Deviations & Unavailable Analyses . . . . . C-1 C.1 Sampling Deviations . . . . . . . . C-2 C.2 Unavailable Analyses . . . . . . . . . C-3 Appendix D: Analytical Deviations . . . . . . . . . . D-1 Brunswick Nuclear Plant Analytical Deviations . . . . . . D-2 Appendix E: Radiological Environmental Monitoring Program Results 2016. . . E-1 Appendix F: Errata to Previous Reports . . . . . . . . . F-1 Errata to the 2014 and 2015 BNP AREOR . . . . . . . F-2 LIST OF FIGURES 2.1-1 Radiological Environmental Sampling Locations (Distant from Plant) . . 2-5 2.1-2 Radiological Environmental Sampling Locations (Nearest Plant) . . 2-6 2.1-3 Radiological Environmental Sampling Locations (ISFSI TLDs) . . . 2-7 2.1-4 Radiological Environmental Sampling Locations. . . . . . 2-8 2.1-5 Radiological Environmental Sampling Locations (Continued) . 2-9 2.1-6 Radiological Environmental Sampling Locations (Continued) . 2-10 2.1-7 Radiological Environmental Sampling Locations (Continued) . 2-11 2.1-8 Radiological Environmental Sampling Locations (Continued) . 2-12 2.1-9 Radiological Environmental Sampling Locations (Continued) . 2-13 2.1-10 Radiological Environmental Sampling Locations (Continued) . 2-14 2.1-11 Radiological Environmental Sampling Locations - Wells . 2-15 2.1-12 Radiological Environmental Sampling Locations - Wells (Continued) . 2-16 2.1-13 Radiological Environmental Sampling Locations - Wells (Continued) . 2-17 2.1-14 Radiological Environmental Sampling Locations - Wells (Continued) . 2-18 3.1 Concentration of Gross Beta in Air Particulate . . . . . . 3-2 3.2-1 2016 Surface Water Tritium Activity - (Location 400 and 401) . . . 3-5 3.2-2 Concentration of Tritium in Surface Water . . . . . . . 3-5 3.4 Concentration of Cs-137 in Broadleaf Vegetation . . . . . 3-8 3.7 Direct Gamma Radiation (TLD) Results . . . . . . . 3-12 3.8-1 Brunswick Nuclear Plant 2016 Land Use Census Map . . . . 3-19 LIST OF TABLES 2.1-A Radiological Monitoring Program Sampling Locations . . . . 2-19 2.1-B Radiological Monitoring Program Sampling Locations (TLD Sites) . . 2-21 2.2-A Reporting Levels for Radioactivity Concentrations in Environmental Samples . . . . . . . . . . 2-22 2.2-B REMP Analysis Frequency . . . . . . . . . 2-22 2.2-C Detection Capabilities for the A PRIORI Lower Limit of Detection . . 2-23 3.1-1 Mean Concentration of Gross Beta in Air Particulate . . . . . 3-3 3.1-2 Mean Concentration of Air Radioiodine (I-131) . . . . . . 3-3 3.2 Mean Concentration of Tritium in Surface Water . . . . . 3-6 3.3 Mean Concentration of Tritium in Ground Water . . . . . 3-7 ii

LIST OF TABLES CONTINUED 3.4 Mean Concentration of Radionuclides in Broadleaf Vegetation (pCi/kg) . 3-8 3.6 Mean Concentration of Radionuclides in Shoreline Sediment . . . 3-10 3.7-1 Direct Gamma Radiation (TLD) Results . . . . . . . 3-12 3.7-2 ISFSI TLD Dose. . . . . . . . . . . . 3-13 3.7-3 Historical TLD Results (1972 - 2016). . . . . . . . 3-14 3.8-A Land Use Census Comparison (2015 - 2016). . . . . . . 3-17 3.8-B Garden Census - 2016 . . . . . . . . . . 3-18 4.0-A Duke Energy Interlaboratory Comparison Program . . . . . 4-6 4.0-B Eckert & Ziegler Analytics Cross Check Program - EnRad . . . . 4-13 4.0-C Environmental Resource Associates (ERA) Proficiency Testing . . . 4-16 4.0-D 2016 Environmental Dosimeter Cross-Check Results Nuclear Technology Services . . . . . . . . . 4-17 4.0-E 2016 Annual Quality Assurance Report for GEL Laboratory . . . 4-18 4.0-F Eckert & Ziegler Analytics Cross Check Program - BSEP . . . . 4-20 LIST OF ACRONYMS USED IN THIS TEXT (in alphabetical order)

A Annually ADM Archer-Daniels-Midland Chemical Company AP Air Particulate AR Air Radioiodine = Air Cartridge AREOR Annual Radiological Environmental Operating Report BO Benthic Organisms BSEP Brunswick Steam Electric Plant C Control CR Condition Report - Corrective Action Program ERA Environmental Resource Associates EZA Eckert & Ziegler Analytics, Inc.

FSS Fleet Scientific Services GEL General Engineering Laboratories, LLC.

GPS Global Positioning System GW Ground water I Indicator IR Inner Ring - TLDs ISFSI Independent Spent Fuel Storage Installation LLD Lower Limit of Detection M Monthly MDA Minimum Detectable Activity mrem Millirem MSL Mean sea level MWe megawatts (electrical)

NIST National Institute of Standards and Technology NRC Nuclear Regulatory Commission OD Ocean discharge ODCM Offsite Dose Calculation Manual OR Outer Ring - TLDs pCi/kg picocurie per kilogram pCi/l picocurie per liter pCi/m3 picocurie per cubic meter PMAC Projected Maximum Annual Concentration Q Quarterly REMP Radiological Environmental Monitoring Program SA Semiannually SDSP Storm Drain Stabilization Pond SH Shellfish SI Special Interest - TLDs SW Surface Water TLD Thermoluminescent Dosimeter W Weekly iii

1.0 EXECUTIVE

SUMMARY

The Brunswick Steam Electric Plant (BSEP), Unit Nos. 1 and 2, is operated by Duke Energy Progress, LLC under licenses granted by the Nuclear Regulatory Commission (NRC).

Provisions of the Nuclear Regulatory Commissions Regulatory Guide 4.8, BSEP Plant Technical Specifications 5.6.2, and the BSEP Offsite Dose Calculation Manual (ODCM) establish the requirements of the Radiological Environmental Monitoring Program (REMP).

This report describes the BSEP REMP and the program results for January 1, 2016, through December 31, 2016.

Included in the report are the identification of sampling locations, descriptions of environmental sampling and analysis procedures, comparisons of present environmental radioactivity levels and pre-operational environmental data, analysis of trends in environmental radiological data as potentially affected by plant operations, and a summary of environmental radiological sampling results. Quality assurance practices, sampling deviations, unavailable samples, and program changes are also discussed.

Sampling activities were conducted as prescribed by the BSEP ODCM. Required analyses were performed and detection capabilities were met for the collected samples required by the ODCM, other than that stated in Appendix D - Analytical Deviations (NCR # 02076456).

Two thousand thirty-six samples were analyzed comprising 2,036 test results in order to compile data for the 2016 BSEP Annual Radiological Environmental Operating Report (AREOR). Based on the annual BSEP land use census, the current number of sampling sites for BSEP is sufficient.

Concentrations observed in the environment in 2016 for plant related radionuclides were within the ranges of concentrations observed in the past. Inspection of the data showed that radioactivity concentrations were as expected and positively identified measurements attributable to plant operation were within limits as specified in the BSEP ODCM.

The continued operation of BSEP has not significantly contributed measurable radiation or the presence of gamma radioactivity, in the environmental media monitored. The measured concentrations of radioactivity and radiation are well within the applicable regulatory limits.

Section 1 - Page 1

2.0 INTRODUCTION

2.1 SITE DESCRIPTION AND SAMPLE LOCATIONS Duke Energy's Brunswick Steam Electric Plant (BSEP) consists of two boiling water reactors with a design rating of 2923 megawatts (MWe) thermal. Commercial production was initiated by Unit 2 on November 3, 1975 and by Unit 1 on March 18, 1977. BSEP is located in Brunswick County, North Carolina. The site is along state route 87 approximately two and a half miles north of Southport, North Carolina. The community of Boiling Spring Lakes is about three miles northwest of the site. The towns of Caswell Beach and Oak Island are on a barrier island south of the plant. The site is also approximately 16 miles south of Wilmington, North Carolina.

The Cape Fear River is east of the plant and cooling water is drawn from the river through a canal. The cooling water and plant liquid effluents are both discharged to the Atlantic Ocean through a canal, pumping station, and piping. The discharge point is south of the town of Caswell Beach.

The plant site varies in elevation from sea level to 30 feet above mean sea level (MSL). It is surrounded by extensive marshes. The lower Cape Fear River is an important nursery area for shellfish and other marine species.

The local economy supports significant recreational, industrial, agricultural, and government contributions. There is well-developed recreational use of the barrier islands south and east of the site. Fishing and boating are popular activities. Commercial fishing is also an important industry in the community. Agriculture utilizes some of the land within 50 miles of the site; such as small truck farms, cattle, poultry, and row crops including corn, soybeans and tobacco.

Industrial activity includes the Archer-Daniels-Midland Chemical (ADM) Company, a manufacturer of citric acid, located one and a half miles southeast of the plant. In conjunction with the citric acid plant is a small electrical generating station operated by Capital Power, Inc.

This coal-fired station is composed of two units rated at 55 MWe each.

Although the contribution to background radiation is small, Duke Energy Progress, LLC has established the Radiological Environmental Monitoring Program to measure the exposure pathways to man. An exposure pathway describes the source of the radiological exposure. The primary forms of radiological emissions from the plant are airborne and liquid discharge. The following pathways are monitored: external dose, ingestion of radioactive materials, and the inhalation of radioactive material. Specific methods and different environmental media are required to assess each pathway.

Sampling locations are chosen based upon meteorological factors, preoperational monitoring, and results of the land use surveys. A number of locations are selected as controls. Control stations are selected because they are very unlikely to be affected by the operation of the plant.

Figures 2.1-1 through 2.1-14 are maps depicting the BSEP sampling locations and the BSEP Section 2 - Page 1

Thermoluminescent Dosimeter (TLD) monitoring locations. The location numbers shown on these maps correspond to those listed in Tables 2.1-A and 2.1-B.

2.2 SCOPE AND REQUIREMENTS OF THE REMP The Radiological Environmental Monitoring Program (REMP) was established in 1973 at the Brunswick Steam Electric Plant (BSEP). Radiation and radioactivity in various environmental media have been monitored for 43 years, including monitoring in excess of a year prior to commencing operation. Monitoring is also provided for control locations, which would not be impacted by operations of BSEP. Using the data from the control locations and the historical data collected prior to operation allows comparison of data collected at locations near the BSEP which could potentially be impacted by its operations.

This monitoring program is based on NRC guidance as reflected in the BSEP Offsite Dose Calculation Manual (ODCM), with regards to sample media, sampling locations, sampling frequency and analytical sensitivity requirements. Indicator and control locations were established for comparison purposes to distinguish radioactivity of plant origin from natural or other man-made environmental radioactivity. The environmental monitoring program also verifies projected and anticipated radionuclide concentrations in the environment and related exposures from releases of radionuclides from BSEP. This program satisfies the requirements of Section IV.B.2 of Appendix I to 10 CFR 50 and provides surveillance of all appropriate critical exposure pathways to man and protects vital interests of the company, public and state and federal agencies concerned with the environment. Reporting levels for activity found in environmental samples are listed in Table 2.2-A. Table 2.2-B lists the REMP analysis and frequency schedule.

The Annual Land Use Census, required by the BSEP ODCM, is performed to ensure that changes in the use of areas at or beyond the site boundary are identified and that modifications to the REMP are made if required by changes in the land use. This census satisfies the requirements of Section IV.B.3 of Appendix I to 10 CFR 50. Results are shown in Table 3.8-A and 3.8-B.

Participation in an interlaboratory comparison program is performed in fulfillment of BSEP ODCM Operational Requirement provides for independent checks on the precision and accuracy of measurements of radioactive material in REMP sample matrices. Such checks are performed as part of the quality assurance program for environmental monitoring in order to demonstrate that the results are valid for the purposes of Section IV.B.2 of Appendix I to 10 CFR 50. A summary of the results obtained as part of this comparison program are in Section 4 of this annual report.

Section 2 - Page 2

2.3 STATISTICAL AND CALCULATIONAL METHODOLOGY 2.3.1 ESTIMATION OF THE MEAN VALUE There was one (1) basic statistical calculation performed on the raw data resulting from the environmental sample analysis program. The calculation involved the determination of the mean value for the indicator and the control samples for each sample medium. The mean is a widely used statistic. This value was used in the reduction of the data generated by the sampling and analysis of the various media in the Radiological Environmental Monitoring Program. Net activity (or concentration)" is the activity (or concentration) determined to be present in the sample. No "Minimum Detectable Activity", "Lower Limit of Detection", "Less Than Level", or negative activities or concentrations are included in the calculation of the mean. The following equation was used to estimate the mean (reference 6.8):

N x i x = i =1 N

Where:

x = estimate of the mean, i = individual sample, N = total number of samples with a net activity (or concentration),

i = net activity (or concentration) for sample i.

2.3.2 LOWER LIMIT OF DETECTION AND MINIMUM DETECTABLE ACTIVITY The Lower Limit of Detection (LLD) and Minimum Detectable Activity (MDA) are used throughout the REMP.

LLD - The LLD, as defined in the Offsite Dose Calculation Manual (ODCM), is the smallest concentration of radioactive material in an unknown sample that will yield a net count, above the system background, that will be detected with 95% probability with a 5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD is an a priori lower limit of detection. The actual LLD is dependent upon the standard deviation of the background counting rate, the counting efficiency, the sample size (mass or volume), the radiochemical yield and the radioactive decay of the sample between sample collection and counting. The "required" LLD's for each sample medium and selected radionuclides are given in the ODCMs and are listed in Table 2.2-C.

Section 2 - Page 3

MDA - The MDA is the net counting rate (sample after subtraction of background) that must be surpassed before a sample is considered to contain a scientifically measurable amount of a radioactive material exceeding background amounts. The MDA is calculated using a sample background and may be thought of as an "actual" LLD for a particular sample measurement. Certain gross counting measurements display a calculated negative value, indicating background is greater than sample activity.

2.3.3 TREND IDENTIFICATION One of the purposes of an environmental monitoring program is to determine if there is a buildup of radionuclides in the environment due to the operation of the nuclear station. Visual inspection of tabular or graphical presentations of data (including preoperational) is used to determine if a trend exists. A decrease in a particular radionuclide's concentration in an environmental medium does not indicate that reactor operations are removing radioactivity from the environment but that reactor operations are not adding that radionuclide to the environment in quantities exceeding the preoperational level and that the normal removal processes (radioactive decay, deposition, resuspension, etc.) are influencing the concentration.

Substantial increases or decreases in the amount of a particular radionuclide's release from the nuclear plant will greatly affect the resulting environmental levels; therefore, a knowledge of the release of a radionuclide from the nuclear plant is necessary to completely interpret the trends, or lack of trends, determined from the environmental data. Factors that may affect environmental levels of radionuclides include prevailing weather conditions (periods of drought, solar cycles or heavier than normal precipitation), construction in or around either the nuclear plant or the sampling location, and addition or deletion of other sources of radioactive materials (such as the 1986 Chernobyl accident and the 2011 Japan earthquake and tsunami, which triggered the Fukushima Dai-ichi Nuclear Power Plant incident). Some of these factors may be obvious while others are sometimes unknown. Therefore, how trends are identified will include some judgment by plant personnel.

Section 2 - Page 4

Figure 2.1-1 BSEP Radiological Environmental Sampling Locations (Distant from Plant)

Stations not illustrated:

204 (Sutton Plant in Wilmington) 206 (Brunswick County Complex) - (Control Air Stations) 703, 704, 705 (Location not Specified in the Atlantic Ocean)(Control Fish Station) 802 (Location not specified) (Control Vegetation)

Section 2 - Page 5

Figure 2.1-2 BSEP Radiological Environmental Sampling Locations (Nearest Plant)

This is an expanded view of Figure 2.1-1.

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Figure 2.1-3 BSEP Radiological Environmental Sampling Locations Independent Spent Fuel Storage Installation (ISFSI) TLDs Section 2 - Page 7

Figure 2.1-4 Radiological Environmental Sampling Locations Section 2 - Page 8

Figure 2.1-5 Radiological Environmental Sampling Locations (Continued)

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Figure 2.1-6 Radiological Environmental Sampling Locations (Continued)

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Figure 2.1-7 Radiological Environmental Sampling Locations (Continued)

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Figure 2.1-8 Radiological Environmental Sampling Locations (Continued)

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Figure 2.1-9 Radiological Environmental Sampling Locations (Continued)

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Figure 2.1-10 Radiological Environmental Sampling Locations (Continued)

SDSP: Storm Drain Stabilization Pond Section 2 - Page 14

Figure 2.1-11 Radiological Environmental Sampling Locations - Wells Section 2 - Page 15

Figure 2.1-12 Radiological Environmental Sampling Locations - Wells (Continued)

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Figure 2.1-13 Radiological Environmental Sampling Locations - Wells (Continued)

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Figure 2.1-14 Radiological Environmental Sampling Locations - Wells (Continued)

Section 2 - Page 18

TABLE 2.1-A BRUNSWICK STEAM ELECTRIC PLANT (BSEP)

RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS Table 2.1-A Codes W Weekly SA Semiannually M Monthly A Annually Q Quarterly C Control I Indicator Site Type Location Description* Air Surface Shoreline Fish Broadleaf Ground Radioidine Water Sediment (FI) Vegetation Water

1. & Air Particulate 200 I 1.0 miles WSW - Visitors Center W/Q 201 I 0.5 miles NE - Bio Lab Rd. - Projected W/Q Maximum Annual Concentration (PMAC) 202 I 1.0 mile S - Substation, Construction Rd. W/Q 203 I 2.0 miles SSW - Southport Substation W/Q 204 C 22.4 miles NNE - Sutton Plant (Historical W/Q Control) 205 I 0.6 miles SSE - Spoil Pond W/Q 206 C 11.3 miles NW - Brunswick County W/Q Complex 400 C 0.6 miles NE - Intake Canal M 401 I 4.9 miles SSW - Discharge Canal @ OD M Pumps 404 I 0.16 miles SW, Monitoring Well ESS-1B Q/SA 407 I 0.06 miles ENE, Monitoring Well ESS-13B Q/SA 409 I 0.65 miles NE, Monitoring Well ESS-17A Q/SA 410 I 0.65 miles NE, Monitoring Well ESS-17B Q/SA 418 I Monitoring Well ESS-21B, Near SDSP Q/SA 423 I Monitoring Well ESS-24A, Near SDSP Q/SA 424 I Monitoring Well ESS-24B, Near SDSP Q/SA 426 I Monitoring Well ESS-25B, Near SDSP Q/SA 429 I Monitoring Well ESS-27A, Near SDSP Q/SA 494 I Nancys Creek March Area - WP-106** W 495 I Nancys Creek - WP-52 W/M 496 I Nancys Creek - WP-53 W/M 497 I Nancys Creek - WP-55 W/M 498 I Nancys Creek - WP-57 W/M 499 C Cape Fear River - WP-61 W/M 500 I 5.0 miles SSW - Discharge - Beach near SA OD Pumps 501 I Nancys Creek, Adjacent to WP-55, Near A SDSP 604 I Nancys Creek Marsh Area - WP-92** W 605 I Nancys Creek Marsh Area - WP-72** W 606 I Nancys Creek Marsh Area - WP-74** W 607 I Nancys Creek Marsh Area - WP-76** W 608 I Nancys Creek Marsh Area - WP-82** W 609 I Nancys Creek Marsh Area - WP-84** W 610 I Nancys Creek Marsh Area - WP-88** W 612 I Monitoring Well ESS MWPA-118B, Near Q/SA Intake Canal and Plant Stack (b)(c) 700 I 5.5 miles SSW - Atlantic Ocean @ SA discharge (Free Swimmer) 701 I 5.5 miles SSW - Atlantic Ocean @ SA(b)(c) discharge (Bottom Feeders) 702 I 5.5 miles SSW - Atlantic Ocean @ SA(b)(c) discharge (Shellfish/Invertebrates) 703 C Atlantic Ocean; location not specified (Free SA(b)(c)

Swimmer) 704 C Atlantic Ocean; location not specified SA(b)(c)

(Bottom Feeder) 705 C Atlantic Ocean; location not specified SA(b)(c)

(Shellfish/Invertebrates)

Section 2 - Page 19

TABLE 2.1-A (Continued)

Site Type Location Description* Air Surface Shoreline Fish Broadleaf Ground Radioidine Water Sediment (FI) Vegetation Water

1. & Air Particulate 706 I Nancys Creek; location not specified (Free A(b)

Swimmer) 707 I Nancys Creek; location not specified A(b)

(Bottom Feeder) 708 I Nancys Creek; location not specified A(b)

(Shellfish/Invertebrates) 800 I 0.7 miles NE - Intake Canal M(a) 801 I 0.8 miles SW - Discharge Canal M(a) 802 C 10.1 miles - Location not Specified M(a) 803 I 0.6 miles SSE - Spoil Pond M(a) 804 I 0.7 miles S - Leonard Street plant exit M(a) adjacent to RR tracks (a) When Available (b) Edible Portions (c) When in Season

• GPS data reflect approximate accuracy to within 2-5 meters. GPS field measurements were taken as close as possible to the item of interest.

SDSP: Storm Drain Stabilization Pond

• • Refers to SW-494, 604 - 610 and how composited weekly as indicated below for gamma analysis and Sample ID number in Appendix E..

ODCM Sample and Description Composite Frequency/Analysis/Data ID SW-494 (Nancys Creek Marsh Area - WP-106) Composited weekly as Waypoint Comp / Gamma analysis /

SW-604 (Nancys Creek Marsh Area - WP-92) Sample ID #1067 in data section - Appendix E SW-605 (Nancys Creek Marsh Area - WP-72) Composited weekly as Waypoint Comp (70) / Gamma SW-606 (Nancys Creek Marsh Area - WP-74) analysis / Sample ID #1065 in data section - Appendix E SW-607 (Nancys Creek Marsh Area - WP-76)

SW-608 (Nancys Creek Marsh Area - WP-82) Composited weekly as Waypoint Comp (80) / Gamma SW-609 (Nancys Creek Marsh Area - WP-84) analysis / Sample ID #1066 in data section - Appendix E SW-610 (Nancys Creek Marsh Area - WP-88)

Section 2 - Page 20

TABLE 2.1-B BRUNSWICK STEAM ELECTRIC PLANT (BSEP)

RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS (TLD SITES)

Table 2.1-B Codes IR Inner Ring OR Outer Ring ISFSI Independent Spent Fuel Storage Installation C Control SI Special Interest Site Measure Location* Distance Sector Site Measure Location* Distance Sector

1. Type (miles) # Type (miles) 1 IR 1.1 miles E 1.1 E 27 OR 5.1 miles NNW 5.1 NNW 2 IR 0.9 miles ESE 0.9 ESE 28 OR 4.2 miles NW 4.2 NW 3 IR 0.9 miles SE 0.9 SE 29 IR 2.6 miles SSW 2.6 SSW 4 IR 1.1 miles SSE 1.1 SSE 30 IR 2.0 miles NE 2.0 NE 5 IR 1.1 miles S 1.1 S 31 IR 2.5 miles ENE 2.5 ENE 6 IR 1.6 miles SSW 1.6 SSW 32 OR 5.8 miles ENE 5.8 ENE 7 IR 1.1 miles SW 1.1 SW 33 OR 4.1 miles E 4.1 E 8 IR 1.2 miles W 1.2 W 34 OR 5.4 miles E 5.4 E 9 IR 1.0 miles WNW 1.0 WNW 35 OR 7.3 miles SSE 7.3 SSE 10 IR 0.8 miles NW 0.8 NW 36 OR 8.9 miles NE 8.9 NE 11 IR 0.9 miles NNW 0.9 NNW 37 OR 5.5 miles NW 5.5 NW 12 IR 1.1 miles N 1.1 N 38 OR 11.0 miles W 11.0 W 13 IR 1.2 miles NNE 1.2 NNE 39 OR 5.3 miles SW 5.3 SW 14 IR 0.5 miles NE 0.5 NE 40 OR 6.9 miles WSW 6.9 WSW 15 IR 0.9 miles ENE 0.9 ENE 75 OR 4.7 miles S 4.7 S 16 IR 1.0 miles WSW 1.0 WSW 76 OR 4.8 miles SSW 4.8 SSW 17 IR 1.4 miles ESE 1.4 ESE 77 OR 5.4 miles S 5.4 S 18 IR 1.7 miles 1.7 78 OR 9.9 miles NNE 9.9 NNE 20 IR 2.1 miles S 2.1 S 79 OR 9.5 miles N 9.5 N 21 IR 2.9 miles SSW 2.9 SSW 81 C 9.9 miles WNW 9.9 WNW 22 OR 5.3 miles SW 5.3 SW 82 ISFSI 0.17 miles NNE @ SW 0.17 NNE corner of ISFSI 23 OR 4.6 miles WSW 4.6 WSW 83 ISFSI 0.27 miles NE @ NW 0.27 NE corner ISFSI 24 IR 3.0 miles W 3.0 W 84 ISFSI 0.27 miles NE @ NE corner 0.27 NE of ISFSI 25 OR 8.6 miles WNW 8.6 WNW 85 ISFSI 0.09 miles ENE @ SE 0.09 ENE corner of ISFSI 26 OR 5.9 miles NW 5.9 NW

• GPS data reflect approximate accuracy to within 2-5 meters. GPS field measurements were taken as close as possible to the item of interest.

Section 2 - Page 21

TABLE 2.2-A REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES Analysis Water Airborne Fish Milk Broadleaf (pCi/liter) Particulate and (pCi/kg, wet) (pCi/liter) Vegetation Gases (pCi/kg)

(pCi/m3)

H-3 30,000 Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Zr-Nb-95 400 I-131 2 0.9 3 100 Cs-134 30 10 1,000 60 1,000 Cs-137 50 20 2,000 70 2,000 Ba-La-140 200 300 TABLE 2.2-B REMP ANALYSIS FREQUENCY Sample Analysis Gamma Tritium Gross TLD Medium Schedule Isotopic Beta Air Radioiodine Weekly X Air Particulate Weekly X Quarterly X Direct Radiation (TLD) Quarterly X Monthly Composite (400 & 401) X X Surface Weekly Grab (495 - 499) X Water Monthly Comp. of Weekly Grab X Weekly Grab (494, 604 - 610) X X Ground Quarterly Grab X Water Semiannual Grab X Shoreline Semiannually (500) X Sediment Annually (501) X Fish and Semiannually (700 - 705) X Shellfish/Invertebrates(a) Annually (706 - 708) X X Broadleaf Vegetation(b) Monthly(b) X (a) Edible portions (b) When available Section 2 - Page 22

TABLE 2.2-C DETECTION CAPABILITIES FOR THE A PRIORI LOWER LIMIT OF DETECTION(a)(b)(d)

Analysis Water Airborne Fish Milk Broadleaf Sediment (pCi/liter) Particulates or (pCi/kg, wet) (pCi/liter) Vegetation (pCi/kg, dry)

Gases (pCi/m3) (pCi/kg, wet)

Gross Beta 4 0.01 H-3 3000 Mn-54 15 130 Fe-59 30 260 Co-58, 60 15 130 Zn-65 30 260 Zr-Nb-95 15 I-131 1(c) 0.07 1 60 Cs-134 15 0.05 130 15 60 150 Cs-137 18 0.06 150 18 80 180 Ba-La-140 15 15 (a) This list does not mean that only these nuclides are to be considered. Other peaks that are identifiable, together with these of the above nuclides, shall be analyzed and reported in the AREOR.

(b) The LLD is defined in the BSEP ODCM.

(c) LLD for drinking water samples. If no drinking water pathway exists, a value of 15 pCi/L may be used.

(d) The LLD for each analysis is specified, with the exception of the Nancys Creek Marsh Area principal gamma isotopic and I-131. The LLD for the Nancys Creek Marsh Area gamma isotopic is 5x10-7µCi/ml for Principal Gamma Emitters and 1x10-6 µCi/ml for I-131.

Section 2 - Page 23

3.0 INTERPRETATION OF RESULTS The following section depicts and explains the review of the REMP results conducted during 2016 for the Brunswick Steam Electric Plant (BSEP) and fulfills the reporting requirements of Technical Specifications 5.6.2, BSEP ODCM 7.4.1, and applicable procedures. Review of the 2016 REMP analysis results was performed to identify changes in environmental levels as a result of BSEP operations. Sample data for 2016 was compared to preoperational and historical data. Summary tables containing 2016 information required by Technical Specification 5.6.2 are located in Appendix B.

Evaluation for significant trends was performed for radionuclides that are listed as required within BSEP ODCM. The radionuclides include: H-3, Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr-95, Nb-95, I-131, Cs-134, Cs-137, Ba-140 and La-140. Gross beta analysis results were trended for air particulates and tritium results for surface water samples.

BSEP ODCM addresses actions to be taken if radionuclides other than those required are detected in samples collected. The occurrences of these radionuclides could be the result of BSEP liquid effluents which contained the radionuclides.

Review of the 2016 data presented in this section supports the conclusion that there were no significant changes in environmental sample radionuclide concentrations of samples collected and analyzed from BSEP and surrounding areas that were attributable to plant operations. The radiological environmental data for 2016 indicates that radioactivity concentrations were not higher than expected and all positively identified measurements attributable to BSEP operations in 2016 were within limits as specified in the BSEP ODCM, thus presenting no significant impact on the environment or public health and safety.

A statistical summary of the BSEP data for 2016 has been compiled and summarized in Appendix B along with any plant-derived activity detected within the scope of the REMP.

3.1 AIRBORNE RADIOIODINE AND PARTICULATES The 364 air cartridge/radioiodine (AR) samples from the indicator (260 samples) and the control (104 samples) stations had I-131 concentrations less than the ODCM LLD of 7.00E-2 pCi/m3. The air samplers operated for a total of 99.81% availability for the 2016 year. No I-131 activity due to BSEP operations was identified in any indicator or control samples in 2016 (refer to Table 3.1-2 and Appendix B). Iodine - 131 (I-131) was detected in air samples following the Fukushima Dai-ichi Nuclear Power Plant incident after the March 11, 2011, earthquake and tsunami (NCR # 0456564).

For the period of January 1, 2016, to December 31, 2016, the gross beta activity was detectable in the airborne particulate (AP) samples, with acceptable runtime, from the Section 3 - Page 1

five indicator locations and the two control locations. The 260 indicator samples had an average concentration of 1.66E-2 pCi/m3 (a value lower than the preoperational data) and the average gross beta concentration measured in 104 AP samples collected at control stations during 2016 was 1.63E-2 pCi/m3. The preoperational (1973 - 1974) average concentration was 8.2E-2 pCi/m3. The airborne concentrations of gross beta activity in 2016 are indicative of natural background and do not indicate any activities originating from the nuclear operations at BSEP. Figure 3.1 and Table 3.1-1 provide individual sample gross beta results for the highest annual mean indicator location and the control locations concentration since 1999 to 2016 (refer to Appendix B). The two sample locations' results are similar in concentration and have negligible variance. No plant-related gamma activity was observed for any air particulate filters analyzed during 2016.

Natural gamma concentrations identified are typical of the natural environment and are not attributed to plant operations. Refer to Appendix C or Appendix D for deviations and unavailable samples in the 2016 collection year.

No plant-related gamma activity was detected in quarterly composite filter samples from either the indicator or control locations during 2016. BSEP ODCM LLDs and reporting levels for air particulates are contained in Section 2.0 in Table 2.2-C and 2.2-A respectively.

Figure 3.1 pCi/m3 Concentration of Gross Beta in Air Particulate 8.00E-02 7.00E-02 6.00E-02 5.00E-02 4.00E-02 3.00E-02 2.00E-02 1.00E-02 0.00E+00 1999 2001 2003 2005 2007 2009 2011 2013 2015 Indicator Location Control Location Section 3 - Page 2

Table 3.1-1 Mean Concentration of Gross Beta in Air Particulate Year Indicator Location (pCi/m3) Control Location (pCi/m3) 1999 1.82E-2 1.80E-2 2000 2.08E-2 2.01E-2 2001 1.87E-2 1.87E-2 2002 1.62E-2 1.66E-2 2003 1.59E-2 1.59E-2 2004 1.78E-2 1.77E-2 2005 1.86E-2 1.88E-2 2006 1.92E-2 1.90E-2 2007 2.01E-2 2.13E-2 2008 1.94E-2 1.83E-2 2009 1.95E-2 1.83E-2 2010 2.20E-2 2.06E-2 2011 2.08E-2 2.10E-2 2012 1.93E-2 2.03E-2 2013 1.77E-2 1.74E-2 2014 1.97E-2 1.84E-2 2015 1.58E-2 1.60E-2 2016 1.82E-2 1.63E-2 Table 3.1-2 Mean Concentration of Air Radioiodine (I-131)

Year Indicator Location (pCi/m3) Control Location (pCi/m3) 1999 0.00E+0 0.00E+0 2000 0.00E+0 0.00E+0 2001 0.00E+0 0.00E+0 2002 0.00E+0 0.00E+0 2003 0.00E+0 0.00E+0 2004 0.00E+0 0.00E+0 2005 0.00E+0 0.00E+0 2006(1) 5.31E-2 0.00E+0 2007 0.00E+0 0.00E+0 2008 0.00E+0 0.00E+0 2009 0.00E+0 0.00E+0 2010 0.00E+0 0.00E+0 2011(2) 1.31E-1 1.00E-1 2012 0.00E+0 0.00E+0 2013 0.00E+0 0.00E+0 2014(3) 0.00E+0 0.00E+0 2015 0.00E+0 0.00E+0 2016 0.00E+0 0.00E+0 0.00E+0 indicates no detectable measurements (1) 2006 concentration affected by plant conditions (NCR # 0211934).

(2) 2011 concentrations affected by Fukushima Dai-ichi (3) 2014 Gamma spectroscopy system was replaced 10JUL2014. Gamma spectroscopy system hardware, detector cooling apparatus, software, electronics, nuclide identification libraries, and analytical test matrix components for test matrices were modified (NCR # 0739995).

Section 3 - Page 3

3.2 SURFACE WATER Surface water (SW) is sampled monthly from the intake and discharge canal, while Nancys Creek samples and Nancys Creek Marsh Area samples are sampled weekly.

These samples are analyzed for gamma-emitting radionuclides and for tritium. Tritium analysis is performed weekly on the Nancys Creek samples. Sampling and compositing, of the Nancys Creek samples, for gamma emitters is weekly and the gamma analysis is performed monthly on the samples composited weekly. The current BSEP ODCM (Revision 37) effective date of October 29, 2013, states for the Nancys Creek Marsh Area that samples are collected weekly and are analyzed weekly for tritium, while ODCM sample location 494 and 604 are composited weekly and the composite (Waypoint Comp - sample ID # 1067) are analyzed weekly for gamma emitters.

Nancys Creek Marsh Area surface water samples 605, 606, and 607 are collected weekly and composited (Waypoint Comp (70) - sample ID # 1065) for gamma analysis along with surface water samples 608, 609, and 610 (Waypoint Comp (80) - sample ID #

1066). The gamma analyses indicated that no detectable concentrations of gamma emitting radionuclides relating to plant effluents appeared in any of the surface water indicator or control samples. None of the control samples (SW-400 or 499) indicated the presence of tritium. However, 29 out of 636 indicator samples indicated the presence of tritium in 2016. The predominate indicator locations indicating tritium in 2016 were at Nancys Creek Marsh Area and the discharge canal. Five (5) of the twelve samples from the historical discharge canal indicated the presence of tritium, while 24 out of 624 samples from Nancys Creek Marsh Area indicated the presence of tritium. The tritium activity detected in SW-401 (the discharge canal composite sample) had an average tritium concentration of 3.23E+2 pCi/L, which was expected due to plant operations at the time of sampling. The indicator samples from Nancys Creek and Nancys Creek Marsh Area had a maximum concentration of 1.32E+3 pCi/L of tritium activity. The reporting limit for tritium in environmental samples is 3.00E+4 pCi/L (30,000 pCi/L);

therefore, per BSEPs ODCM requirements (7.13.15 c and d), all of the detected values are below the reportable limit. The total level of radioactivity as the result of plant effluents in each environmental sampling medium at a required location shall be less than the limit specified when averaged over the calendar quarter. Figure 3.2-1 depicts the observed tritium concentrations for SW-400 (control) and SW-401 (indicator) in 2016.

Figure 3.2-2 displays the tritium results for the highest annual mean indicator and control annual locations' concentrations since 1999 to 2016. Table 3.2 lists the highest annual mean concentrations for indicator and control locations. Refer to Appendix B for additional surface water results.

Section 3 - Page 4

Figure 3.2-1 2016 Surface Water Tritium Activity Control Location 400 Indicator Location 401 1000 900 800 700 600 pCi/Liter 500 400 300 200 100 0

2/1/2016 3/1/2016 4/1/2016 5/1/2016 6/1/2016 7/1/2016 8/1/2016 9/1/2016 10/1/2016 11/1/2016 12/1/2016 1/1/2017 Date Figure 3.2-2 pCi/liter Concentration of Tritium in Surface Water 30000 25000 20000 15000 10000 5000 0

1999 2001 2003 2005 2007 2009 2011 2013 2015 Indicator Location Control Location There is no reporting level for tritium in surface water; however, if no drinking water pathway exists, a value of 30,000 pCi/l may be used.

Section 3 - Page 5

Table 3.2 Mean Concentration of Tritium in Surface Water Year Indicator Location (pCi/l) Control Location (pCi/l) 1999 0.00E+0 0.00E+0 2000 0.00E+0 0.00E+0 2001 0.00E+0 0.00E+0 2002 0.00E+0 0.00E+0 2003 0.00E+0 0.00E+0 2004 0.00E+0 0.00E+0 2005 3.22E+2 0.00E+0 2006 0.00E+0 0.00E+0 2007 6.30E+2 0.00E+0 2008 4.85E+2 0.00E+0 2009 5.75E+2 0.00E+0 2010 3.39E+2 0.00E+0 2011 9.28E+2 0.00E+0 2012 6.47E+3 0.00E+0 2013 1.29E+3 0.00E+0 2014 8.80E+2 0.00E+0 2015 1.02E+3 0.00E+0 2016 3.18E+3 0.00E+0 0.00E+0 indicates no detectable measurements 3.3 GROUND WATER Groundwater (GW) is sampled quarterly and semiannually from 10 indicator sample sites. These samples are analyzed for gamma-emitting radionuclides (at least semiannually) and for tritium (at least quarterly). The analyses indicated that no detectable concentrations of gamma emitting radionuclides relating to plant effluents appeared in any of the indicator samples in 2016. The tritium analyses indicated that no detectable concentration of tritium appeared in any of the indicator samples analyzed in 2016. Ten (10) ground water samples collected in 2016 per BSEP ODCM Table 7.3.15-1 were not analyzed by BSEP laboratory in the required timeframe stated in the BSEP ODCM (NCR # 02076456). This is not a reportable event per verification with BSEP Regulatory Affairs. Refer to Appendix D, Analytical Deviations for additional information. Table 3.3 lists the tritium results for the highest annual mean concentrations for indicator and control locations since 1999 to 2016.

Section 3 - Page 6

Table 3.3 Mean Concentration of Tritium in Ground Water Year Indicator Location (pCi/l) Control Location (pCi/l) 1999 N/A N/A 2000 N/A N/A 2001 N/A N/A 2002 N/A N/A 2003 N/A N/A 2004 N/A N/A 2005 N/A N/A 2006 N/A N/A 2007 N/A N/A 2008 1.50E+6 No Control 2009 6.48E+5 No Control 2010 5.66E+5 No Control 2011 3.10E+2 No Control 2012 4.00E+2 No Control 2013 4.66E+2 No Control 2014 6.54E+2 No Control 2015 4.02E+2 No Control 2016 0.00E+0 No Control 0.00E+0 indicates no detectable measurements N/A indicates that Ground Water samples were not part of the BSEP REMP until 2008.

3.4 MILK/BROADLEAF VEGETATION No milk (milch) sampling locations are currently identified in BSEP environs; therefore, no sampling of this media was available in 2016.

Food crops were not grown in the vicinity of the plant in 2016 and this media was represented by indigenous vegetation samples consisting primarily of wax myrtle leaves.

Forty-eight (48) samples were collected from indicator locations and twelve (12) samples from the control location. No detectable activities relating to plant effluents were detected in any of the indicator or control broadleaf vegetation sample media in 2016.

No other gamma activity was detected in any sample other than naturally occurring gamma activity. Figure 3.4 displays the highest annual mean indicator and control location concentrations for Cs-137 in broadleaf vegetation since 1999 to 2016. Table 3.4 lists the highest annual mean concentrations for indicator and control locations for Cs-134, Cs-137, Co-60, and I-131 in broadleaf vegetation since 1999 to 2016.

Section 3 - Page 7

Figure 3.4 pCi/kg Concentration of Cs-137 in Broadleaf Vegetation 1.00E+02 8.00E+01 6.00E+01 4.00E+01 2.00E+01 0.00E+00 1999 2001 2003 2005 2007 2009 2011 2013 2015 Indicator Location Control Location 5% Reporting Limit Table 3.4 Mean Concentrations of Radionuclides in Broadleaf Vegetation (pCi/kg)

Year Cs-134 Cs-134 Cs-137 Cs-137 Co-60 Co-60 I-131 I-131 Indicator Control Indicator Control Indicator Control Indicator Control 1999 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2000 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2001 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2002 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2003 0.00E+0 0.00E+0 0.00E+0 3.42E+1 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2004 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2005 0.00E+0 0.00E+0 3.32E+1 3.66E+1 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2006 0.00E+0 0.00E+0 0.00E+0 2.73E+1 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2007 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2008 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2009 0.00E+0 0.00E+0 0.00E+0 1.69E+1 4.94E+1 0.00E+0 0.00E+0 0.00E+0 2010 0.00E+0 0.00E+0 0.00E+0 1.73E+1 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2011(1) 2.60E+1 1.64E+1 2.48E+1 2.68E+1 0.00E+0 0.00E+0 2.20E+2 1.48E+2 2012 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2013 0.00E+0 0.00E+0 0.00E+0 2.18E+1 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2014(2) 0.00E+0 0.00E+0 0.00E+0 2.29E+1 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2015 0.00E+0 0.00E+0 0.00E+0 2.98E+1 0.00E+0 0.00E+0 0.00E+0 0.00E+0 2016 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 0.00E+0 indicates no detectable measurements (1) 2011 concentration affected by Fukushima Dai-ichi (2) 2014 Gamma spectroscopy system was replaced 10JUL2014. Gamma spectroscopy system hardware, detector cooling apparatus, software, electronics, nuclide identification libraries, and analytical test matrix components for test matrices were modified (NCR # 0739995).

Section 3 - Page 8

3.5 FISH and INVERTEBRATES Fish (free swimmers and bottom feeders), invertebrate (SH), and benthic organism (BO) samples are collected semiannually from three locations: (1) near the Atlantic Ocean discharge pipe at Caswell Beach and (2) a control location in the Atlantic Ocean not influenced by plant operations and (3) annually from three locations on Nancys Creek (Figure 2.1-4). No detectable activities relating to plant effluents were detected in 2016.

REMP fish and invertebrates (shrimp) from Nancy's Creek, which are collected annually per the BSEP ODCM do not require a tritium analysis; however, for the past eight years the samples have been analyzed for tritium. No tritium activity has been detected in these samples for eight years; therefore, the BSEP REMP owner determined that the BSEP REMP fish and invertebrate samples collected November 2016 from the Nancy's Creek sample location did not require tritium analysis for that collection period or future collections.

3.6 SHORELINE SEDIMENT Four shoreline sediments were collected in 2016. All of the radionuclides indicative of plant effluents were determined to be less than the respective LLDs for gamma-emitting radionuclides in both samples from the beach area near the pumping station location at Caswell Beach and one sample from the Nancys Creek area. Two shoreline sediment samples in 2016 were drawn from Nancys Creek adjacent to WP-55 near the Storm Drain Stabilization Pond (SDSP), where one of the indicator samples contained Cesium (Cs)-137 activity (Single Value: 1.32E+2 pCi/kg, dry). Both of the samples were analyzed for Iron (Fe)-55, Strontium (Sr)-89, Strontium (Sr)-90, and one for Nickel (Ni)-

63 by General Engineering Laboratories, LLC (GEL). Both were less than the respective LLDs. Per BSEP ODCM revision 37; if plant activity is detected, then Sr-89, 90, and Fe-55 analyses are to be performed on the shoreline sediment sample and the frequency of sampling for the shoreline sediment sample from Nancys Creek will increase to semi-annually for the next sampling year.

Section 3 - Page 9

Table 3.6 Mean Concentration of Radionuclides in Shoreline Sediment YEAR Cs-137 Indicator (pCi/kg) 1999 0.00E+0 2000 0.00E+0 2001 0.00E+0 2002 0.00E+0 2003 0.00E+0 2004 0.00E+0 2005 0.00E+0 2006 0.00E+0 2007 0.00E+0 2008 0.00E+0 2009 1.65E+2 2010 1.57E+2 2011 1.77E+2 2012 1.69E+2 2013 7.13E+1 2014(1) 1.26E+2 2015 1.32E+2 2016 1.32E+2 0.00E+0 indicates no detectable measurements There is no control location for Shoreline Sediments.

(1) 2014 Gamma spectroscopy system was replaced 10JUL2014. Gamma spectroscopy system hardware, detector cooling apparatus, software, electronics, nuclide identification libraries, and analytical test matrix components for test matrices were modified (NCR #

0739995).

3.7 DIRECT GAMMA RADIATION 3.7.1 ENVIRONMENTAL TLD In 2016, 178 TLDs were analyzed, 174 at indicator locations and 4 at the control location. TLDs are collected and analyzed quarterly.

Thermoluminescent dosimeters (TLDs) were used to monitor ambient radiation exposures in the plant environs. The environmental data on external radiation exposure for 2016 was essentially unchanged from 1989-2015, with an average exposure for all of 2016 indicator locations of 9.95 mR per std. quarter. The average exposure observed over the preoperational period was 1.02 mR per week observed from the fourth quarter of 1972 through the second quarter of 1975.

Table 3.7-3 provides a comparison of recent data with the preoperational and historical data.

The average quarterly exposure at the indicator and control locations was 9.95 mR/Std. Qtr. and 10.3 mR/Std. Qtr. respectively. The highest indicator location was 5.3 miles SW of the plant and its average was 14.7 mR/Std. Qtr. The differences among these locations are attributed to variations in soils, local geology, and are not the result of plant operations. There were two (2) missing Section 3 - Page 10

TLDs during the BSEP 2016 collection period, refer to Appendix C for information.

Comparison of the average annual TLD exposure between the inner and outer ring TLD data and the control TLD data for 1999 to 2016 is presented in Figure 3.7 and Table 3.7-1.

TLD averages per Appendix B do include a separate line for the four (4) ISFSI TLDs that were added to the program as of 3rd Quarter 2010. These TLDs are not indicative of the plants environmental monitoring programs TLDs, so they will be handled separately. The ISFSI TLD data is included with the environmental data results as a separate section. Comparison of the 2016 ISFSI TLD data after loaded fuel with preoperational data (2008 - 3rd Quarter 2010) indicates that the average pre-op TLD dose levels were about the same as the average after fuel was loaded (See Table 3.7-2. Dry fuel storage radiation measurements have been monitored since 2008 and additional information can be found in the BSEP 2016 Annual Release Report.

As of first quarter 2014, the environmental TLDs that are placed in the field for REMP are Harshaw TLDs. Panasonic TLDs were the type of environmental TLDs for BSEP REMP monitoring prior to 2014. This change was a merger initiative in order to achieve fleet standardization of the TLD program. This change in environmental TLDs for the REMP indicates a step change in activity as mentioned in NCR # 01982479 between the Panasonic TLD readings prior to 2014 and the Harshaw TLD readings from 2014 to present. There are three factors that can be attributed to the step increase that was observed: (1) the annealing method levels employed were lower for the Panasonic TLDs, (2) transit control subtraction differences, and (3) the calculation/method of fade correction (fixed fade control -

vs - actual in field TLDs). Starting in 2016, enhanced analytical methods will be evaluated for future implementation when sufficient data is available. The new methods will improve data transparency and interpretation.

A TLD Intercomparison Program is conducted as part of the quality assurance program. Results of this program are included in Section 4.9.

Section 3 - Page 11

Figure 3.7 mR/Std. Qtr. Direct Gamma Radiation (TLD) Results 40 30 20 10 0

1999 2001 2003 2005 2007 2009 2011 2013 2015 Inner Ring Outer Ring Control There is no reporting level for Direct Radiation (TLD)

Table 3.7-1 Direct Gamma Radiation (TLD) Results Inner Ring Average Outer Ring Average Control Average Year (mR/Std. Qtr.) (mR/Std. Qtr.) (mR/Std. Qtr.)

1999 9.76E+0 9.53E+0 1.11E+1 2000 9.75E+0 9.61E+0 1.11E+1 2001 1.01E+1 9.88E+0 1.09E+1 2002 9.65E+0 9.45E+0 1.09E+1 2003 9.60E+0 9.51E+0 1.05E+1 2004 9.78E+0 9.68E+0 1.06E+1 2005 9.94E+0 9.64E+0 1.07E+1 2006 1.02E+1 9.80E+0 1.07E+1 2007 9.96E+0 9.55E+0 1.06E+1 2008 9.93E+0 9.83E+0 1.07E+1 2009 1.00E+1 9.98E+0 1.06E+1 2010 1.01E+1 1.01E+1 1.07E+1 2011 1.00E+1 9.86E+0 1.08E+1 2012 9.78E+0 9.79E+0 1.10E+1 2013 9.98E+0 9.61E+0 1.12E+1 2014 1.01E+1 9.98E+0 1.05E+1 2015 1.06E+1 1.06E+1 1.14E+1 2016 1.01E+1 9.76E+0 1.03E+1 Section 3 - Page 12

Table 3.7-2 ISFSI TLD Dose (mR/Std. Qtr.)

TLD # 82 TLD # 83 TLD # 84 TLD # 85 Average Pre-Op (1 Qtr. 2008 to 3rd Qtr. 2010) st 30.1 +/- 3.1 22.4 +/- 2.1 16.7 +/- 1.6 53.2 +/- 7.6 Average after Fuel Loaded (4th Qtr. 2010 to 4th Qtr. 2016) 30.9 24.4 18.3 43.1 Section 3 - Page 13

Table 3.7-3 Brunswick Steam Electric Plant HISTORICAL TLD RESULTS (1972-2016)

Average Exposure of All TLD Year Monitoring Locations (mR per week) 1972 (4th Qtr.) 0.80 1973 1.25 1974 0.97 1975 (1st, 2nd Qtr) 0.80 1976 0.98 1977 1.32 1978 1.24 1979 0.93 1980 0.90 1981 0.96 1982 1.18 1983 1.21 1984 0.98 1985 1.03 1986 0.89 1987 0.92 1988 0.86 1989 0.75 1990 0.76 1991 0.76 1992 0.75 1993 0.78 1994 0.77 1995 10.1 (mR per quarter)*

1996 10.1 (mR per quarter) 1997 10.1 (mR per quarter) 1998 9.7 (mR per quarter) 1999 9.7 (mR per quarter) 2000 9.7 (mR per quarter) 2001 10.0 (mR per quarter) 2002 9.6 (mR per quarter) 2003 9.6 (mR per quarter) 2004 9.7 (mR per quarter) 2005 9.8 (mR per quarter) 2006 10.0 (mR per quarter) 2007 9.8 (mR per quarter) 2008 9.9 (mR per quarter) 2009 10.0 (mR per quarter) 2010 10.1 (mR per quarter) 2011 9.9 (mR per quarter) 2012 9.8 (mR per quarter) 2013 9.8 (mR per quarter) 2014 10.0 (mR per quarter) 2015 10.7 (mR per quarter) 2016 10. (mR per quarter)

• TLD exposure in mR per quarter beginning in 1995. The equivalent weekly exposure is 0.78 mR.

Section 3 - Page 14

3.8 LAND USE CENSUS The 2016 BSEP Annual Land Use Census was conducted during June of 2016 as required by the BSEP ODCM. Table 3.8-A summarizes the 2016 census results. No environmental program changes were required as a result of the 2016 Land Use Census.

3.8.1 PURPOSE OF LAND USE CENSUS The land use census identifies the pathways (or routes) that radioactive material may reach the general populations near commercial nuclear generating stations.

This is accomplished by completing studies each year that identify how the surrounding lands are used by the population. A comprehensive census of the use of the land within a five-mile (8 kilometer) distance of the plant is completed during the growing season each year. This information is used for dose assessment and to identify changes to the stations sampled and the type of samples. These results ensure that the Radiological Environmental Monitoring Program (REMP) is based upon current data regarding human activity in the vicinity of the plant.

Therefore, the purpose of the land use census is to ensure the monitoring program is current, as well as provide data for the calculation of estimated radiation exposure.

The pathways evaluated are:

Ingestion Pathway - Results from eating food crops that may have radioactive materials deposited on them, incorporated radioactive materials from the soil or atmosphere. Another pathway is through drinking milk from local cows or goats, if these are present. The grass used to feed these animals may have had radioactive materials deposited on them, that can then be transferred to the milk.

Direct Radiation Exposure Pathway- Results from deposition of radioactive materials on the ground or from passage of these radioactive materials in the air.

Inhalation Pathway- Results from breathing radioactive materials transported in the air.

3.8.2 METHODOLOGY The following must be identified within the five-mile (8 kilometer) radius of the plant for each of the sixteen meteorological sectors (compass direction the winds may blow, for example NNE [North North East]):

The nearest resident The nearest garden of greater than 500 square feet, producing broadleaf vegetation Section 3 - Page 15

The nearest milk animal The following must also be identified (for elevated releases) within the three-mile radius of the plant for each of the 16 meteorological sectors:

The location of all milk animals The location of all gardens of greater than 500 square feet, producing broadleaf vegetation The primary method is visual inspection from the roadside within the five (5) mile radius, with the exception of the Sunny Point Military Ocean Terminal. This information may be supplemented with data from aerial photographs and a Global Positioning System (GPS) to determine distance and direction from the plant.

Distances from the plant are accurate to within one tenth of a mile.

3.8.3 LAND USE CENSUS RESULTS The 2015 and 2016 results of the survey for the nearest resident, garden, milk and meat animals in each sector are compared in Table 3.8-A.

The resident portion of the census conducted in June of 2016 did not identify any new residents closer to the plant; therefore, no changes from the 2015 land use census. The garden portion of the census identified changes in the distance of the nearest garden in five sectors during the 2016 census.

The nearest garden locations changed in the North (N) sector from 1.0 mile to 1.0 mile, the S sector from 1.8 miles to 1.7 miles, SSW from 1.9 miles to 1.7 miles, SW from 1.4 miles to 2.2 miles, and in the WNW sector from 1.0 mile to 1.0 mile (address/location of the garden changed, but distance remained the same). No milk animals were located within 5 miles of the plant in 2016.

The 2016 Garden Census was conducted within three (3) miles of BSEP and identifies all gardens of greater than 500 square feet that were found in the survey area. Results of the garden census are located in Table 3.8-B.

Results of the 2016 Land Use and Garden Census indicate stable use of land, confirming that current control locations are appropriate, and no changes are needed for dose assessment and environmental monitoring.

Section 3 - Page 16

Table 3.8-A Brunswick Steam Electric Plant Land Use Census Comparison (2015 - 2016)

Nearest Pathway (Miles)

SECTOR RESIDENT GARDEN MILK/MEAT ANIMALS 2015 2016 2015 2016 2015 2016 N 0.7 0.7 1.1 1.0* None None NNE 0.8 0.8 0.9 0.9 None None NE None None None None None None ENE None None None None None None E None None None None None None ESE 1.4 1.4 None None None None SE None None None None None None SSE 2.1 2.1 None None None None S 1.1 1.1 1.8 1.7* None None SSW 1.2 1.2 1.9 1.7* None None SW 1.1 1.1 1.4 2.2* None None WSW 1.2 1.2 1.3 1.3 None None W 0.9 0.9 1.2 1.2 None None WNW 0.9 0.9 1.0 1.0* None None NW 0.9 0.9 4.9 4.9 None None NNW 0.8 0.8 0.9 0.9 None None

• Represents a change from the previous year.

Sector and distance determined by Global Positioning System.

Section 3 - Page 17

Table 3.8-B Brunswick Steam Electric Plant Garden Census - 2016 DISTANCE DISTANCE SECTOR (miles) SECTOR (miles)

N 1.0 SSW 2.7 N 1.1 SSW 2.8 NNE 0.9 SSW 2.8 NNE 1.0 SW 2.2 NE None SW 2.3 ENE None SW 2.8 E None SW 3.0 ESE None WSW 1.3 SE None WSW 1.6 SSE None WSW 1.9 S 1.7 WSW 2.1 S 1.8 WSW 2.1 S 1.9 WSW 2.7 S 1.9 WSW 3.0 S 2.0 W 1.2 S 2.0 W 2.6 S 2.2 W 2.6 S 2.3 W 2.6 S 2.3 W 2.7 S 2.3 W 2.7 S 2.3 W 2.7 S 2.3 W 2.9 S 2.4 WNW 1.0 S 2.6 WNW 1.2 S 2.7 NW 4.9 SSW 1.7 NNW 0.9 SSW 1.9 NNW 0.9 SSW 1.9 NNW 3.3 SSW 2.0 NNW 4.3 SSW 2.0 NNW 4.4 SSW 2.1 NNW 4.5 SSW 2.1 NNW 4.6 SSW 2.1 NNW 4.6 SSW 2.2 NNW 4.6 SSW 2.2 NNW 4.8 SSW 2.3 NNW 4.8 SSW 2.3 NNW 4.8 SSW 2.3 NNW 4.8 SSW 2.4 NNW 4.8 SSW 2.4 NNW 4.9 SSW 2.7 NNW 4.9 SSW 2.7 NNW 4.9 SSW 2.7 NNW 4.9 Section 3 - Page 18

Figure 3.8-1 Section 3 - Page 19

4.0 QUALITY ASSURANCE 4.1 SAMPLE COLLECTION Environmental sample collection at BSEP was performed by BSEP Chemistry personnel in 2016 along with the Environmental Water Resources Group as specified by approved sample collection procedures.

4.2 SAMPLE ANALYSIS EnRad Laboratories performed the environmental sample analyses as specified by approved analysis procedures. EnRad Laboratories is located in Huntersville, North Carolina, at Duke Energys Environmental Center. The ground water samples and most of the surface water samples requiring gamma and tritium analyses are analyzed by the BSEP laboratory. The shoreline sediment samples requiring hard-to-detects (Fe-55, Ni-63, and Sr-89/90) during 2016, were analyzed by a vendor laboratory; General Engineering Laboratory, LLC (GEL); as specified by approved analysis procedures.

4.3 DOSIMETRY ANALYSIS The Radiation Dosimetry and Records group performed the environmental dosimetry measurements as specified by approved dosimetry analysis procedures.

4.4 LABORATORY EQUIPMENT QUALITY ASSURANCE 4.4.1 DAILY QUALITY CONTROL BSEP and EnRad Laboratories all have an internal quality assurance program which monitors each type of instrumentation for reliability and accuracy. Quality control checks are performed to ensure that instruments are in proper working order and these checks are used to monitor instrument performance.

4.4.2 CALIBRATION VERIFICATION National Institute of Standards and Technology (NIST) standards that represent counting geometries are analyzed as unknowns at various frequencies ranging from weekly to annually to verify that efficiency calibrations are valid. The frequency is dependent upon instrument use and performance. Investigations are performed and documented should calibration verification data fall outside of the acceptable limits.

4.4.3 BATCH PROCESSING Method quality control samples are analyzed with sample analyses that are processed in batches. These include tritium analyses in ground water and surface water samples.

Section 4 - Page 1

4.5 DUKE ENERGY INTERLABORATORY COMPARISON PROGRAM In 2016 Duke Energy Environmental Laboratory (EnRad) participated in interlaboratory programs to satisfy Radiological Environmental Monitoring Program requirements in Duke Energy nuclear plant Offsite Dose Calculation Manuals and Selected Licensee Commitments Manuals, as applicable. In addition, EnRad Laboratory participated in the ERA RadCheMTM Proficiency Testing program to satisfy North Carolina state drinking water radiochemistry certification requirements.

EnRad Laboratory participated in three interlaboratory programs: Eckert & Ziegler Analytics (EZA), ERA, and Fleet Scientific Services (FSS). EZA results were evaluated against IP 84750 acceptance criteria stated in EnRad Procedure 515, Cross Check Program Administration. ERA evaluated reported results based on National Environmental Laboratory Accreditation Conference (NELAC) Field of Proficiency Testing criteria. FSS results were evaluated as prescribed in the Duke Energy Nuclear Generation Procedure SRPMP 9-2.

4.5.1 DUKE ENERGY INTERLABORATORY PROGRAM EnRad Laboratories participated in the Duke Energy Fleet Scientific Services (FSS) Interlaboratory Program during 2016. Interlaboratory cross check samples including mixed gamma in water (Marinelli beakers), low-level I-131 in water, gross beta in water, and tritium in water samples were analyzed during 2016. A summary of the EnRad Laboratory program results for 2016 is documented in Table 4.0-A.

Interlaboratory cross checks were distributed by Fleet Scientific Services (FSS) staff in accordance with SRPMP 9-2. One media type, water, was analyzed for mixed gamma, tritium, beta, and LLI-131. Table 4.0-A lists results for specific analyses. One-hundred and seventy-four results were reported of which 164 (94.3%) were in agreement.

NCR #02072622 was written by FSS staff due to five out of nine third quarter alpha nuclide results from the FSS cross check samples Alpha/Beta in Water (Q163ABW1, Q163ABW2 and Q163ABW3) showed non-agreement, three other results showed warning limit evaluations.

In the third quarter of 2016, one data set of the three analyzed for FSS Tritium in Water Sample Q163TWR3 showed a low bias when compared to the known value.

NCR #02074856 was initiated to investigate why this sample set was lower than expected.

4.5.2 ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM EnRad Laboratories participated in the Eckert & Ziegler Analytics Cross Check Program during 2016. Cross check samples including air filters (single and composites), air cartridges, gross alpha and beta in water, various mixed gamma samples in Marinelli beakers (soil, vegetation, milk, and water), tritium in water, Section 4 - Page 2

and Iodine in milk and water samples were analyzed at various times of the year.

A summary of the EnRad Laboratory program results for 2016 is documented in Table 4.0-B.

Interlaboratory cross check samples from EZA were received and analyzed in all four quarters of 2016. Table 4.0-B lists the performance for specific samples.

Seventy-nine results were reported of which 79 (100%) met the acceptance criteria based on IP 84750. Five EZA cross check samples did exhibit either a high or low bias in at least one nuclide of interest and EnRad proactively initiated NCRs to investigate these biases. The first bias was found in the second quarter gross alpha/beta in water sample (E11527), where a high alpha activity bias was evident in the sample set. NCR # 02052857 was written to investigate the high alpha activity bias in the water samples.

In the third quarter of 2016, the Gamma in Composite Filter cross check (E11590) showed a low activity bias for the Cr-51 nuclide, the other eight reported nuclides were all found to be in trend. NCR #02080821 was initiated to track the actions for investigating the Cr-51 activity bias. The Gamma in Water cross check (E11588), which was also analyzed in the third quarter of 2016 showed a high activity bias for the Fe-59 isotope. The remaining nine isotopes of sample E11588 were all found to be within trend, NCR #02074444 was written to investigate the high Fe-59 activity bias.

NCR #02027474 was written to document and track the associated actions of an overall high activity bias in the LLI-131 in Milk cross check samples (E11472) analyzed in the first quarter of 2016. In the second quarter of 2016, LLI-131 in Water cross check samples (E11526) also showed an overall high bias within the sample set. NCR #02045683 was initiated to investigate this continued LLI-131 bias since the samples are analyzed the same and the simulated milk matrix is similar to that of the water. In the third quarter of 2016, cross check E11592, LLI-131 in Milk was analyzed and no activity bias was evident.

The BSEP Chemistry Laboratory participated in the Analytical Environmental Cross Check Program administered by Eckert & Ziegler Analytics, Inc. during 2016. Cross check samples including tritium in water, gammas in solids, and other sample media were analyzed in 2016. A summary of the applicable BSEP Laboratory program results for 2016 is documented in Table 4.0-F. BSEP cross check results not appearing in Table 4.0-F will be supplied upon request.

4.5.3 ERA PROFICIENCY TESTING EnRad Laboratories performed method proficiency testing through a program administered by Environmental Resource Associates (ERA) of Arvada, CO. ERA supplied requested method proficiency samples for analysis and nuclide concentration determination. ERA reported proficiency test results to the North Carolina Department of Health and Human Services, North Carolina Public Health Drinking Water Laboratory Certification Program. A summary of these proficiency test data for 2016 is documented in Table 4.0-C.

Section 4 - Page 3

Proficiency samples were distributed in the second and fourth quarters of 2016.

Table 4.0-C summarizes the results and evaluation. Fourteen results were reported of which 14 (100%) were in agreement.

Two NCRs were proactively written to investigate nuclide activity biases seen in ERA Proficiency Samples. NCR #02032824 was written to investigate a high activity bias in the Zn-65 nuclide of Proficiency Sample RAD-105, Gamma Emitters in Water, which was analyzed in the second quarter of 2016. The remaining four identified nuclides in sample RAD-105 were within trend. In the fourth quarter of 2016, NCR #02081918 was written to document and track the actions of an overall high bias in the sample set for Proficiency Sample RAD-107, I-131 in Water. However, during review of data for AREOR preparations, it was found that the closure for NCR #02081918 was insufficient to explain the event, so NCR #02103716 was generated to better document the possible cause of the I-131 bias.

4.6 STATE OF NORTH CAROLINA INTERCOMPARISON PROGRAM EnRad Laboratories routinely participates with the North Carolina Department of Health and Human Services in an intercomparison program. EnRad Laboratories sends BSEP Radiological Environmental Monitoring Program air, surface water, fish, and shoreline sediment samples to the North Carolina Department of Health and Human Services, Division of Public Health for intercomparison analysis.

4.7 TLD INTERCOMPARISON PROGRAM 4.7.1 NUCLEAR TECHNOLOGY SERVICES INTERCOMPARISON PROGRAM Radiation Dosimetry and Records participates in a quarterly TLD intercomparison program administered by Nuclear Technology Services, Inc. of Roswell, GA.

Nuclear Technology Services irradiates environmental dosimeters quarterly and sends them to the Radiation Dosimetry and Records group for analysis of the unknown estimated delivered exposure. A summary of the 2016 Nuclear Technology Services Intercomparison Report is documented in Table 4.0-D.

The individual measurements were evaluated and results falling outside the acceptable ratio criteria had an evaluation performed to identify any recommended remedial actions and to reduce anomalous errors. During third and fourth quarters of 2016 an environmental external TLD cross check failed and NCR # 02106779 was written to document the failures. To prevent recurrence, the two TLDs were pulled and visually inspected for abnormalities in the elements and overall integrity of the TLDs and no abnormalities were found. The two TLDs were then annealed and irradiated to 100 GU, then read 7 days later. Both TLDs over responded on E3 or E4 and were outside of the 10% acceptance criteria per procedure RD/0/B/4000/13, Environmental Monitoring. TLD # 103523 and 103511 were both removed from Environmental TLD inventory and removed from Section 4 - Page 4

service. Complete documentation of any evaluation will be available and provided to the NRC upon request.

4.8 GENERAL ENGINEERING LABORATORY, LLC (GEL)

General Engineering Laboratory, LLC (GEL) participated in various Quality Assurance Programs for Inter-laboratory, Intra-laboratory, Third Party Cross Check programs, and a number of proficiency testing programs during 2016. A summary of the GEL quality assurance program results for the sample media types sent to GEL during 2016 is documented in Table 4.0-E. GEL Quality Assurance Program results not appearing in Table 4.0-E will be supplied upon request.

Section 4 - Page 5

TABLE 4.0-A DUKE ENERGY INTERLABORATORY COMPARISON PROGRAM 2016 EnRad Fleet Scientific Services Cross Check Performance Summary Interlaboratory cross checks were distributed by Fleet Scientific Services (FSS) staff in accordance with SRPMP 9-2.

One media type, water, was analyzed for mixed gamma, tritium, beta, and LLI-131. Table 4.0-A lists results for specific analyses. One-hundred and seventy-four results were reported of which 164 (94.3%) were in agreement.

EnRad GO EnRad/GO Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Gamma in Q161GWR 1 pCi/L 7540 6890 1.09 Agreement Water 1.0 L Mn-54 1 pCi/L 7500 6890 1.09 Agreement 1 pCi/L 7540 6890 1.09 Agreement 1 pCi/L 4960 4880 1.02 Agreement Co-57 1 pCi/L 5060 4880 1.04 Agreement 1 pCi/L 5070 4880 1.04 Agreement 1 pCi/L 4400 4370 1.01 Agreement Co-60 1 pCi/L 4760 4370 1.09 Agreement 1 pCi/L 4530 4370 1.04 Agreement 1 pCi/L 11900 10600 1.12 Agreement Zn-65 1 pCi/L 12200 10600 1.15 Agreement 1 pCi/L 11800 10600 1.11 Agreement 1 pCi/L 3170 3310 0.96 Agreement Y-88 1 pCi/L 3460 3310 1.04 Agreement 1 pCi/L 3270 3310 0.99 Agreement 1 pCi/L 9800 9190 1.07 Agreement Sn-113 1 pCi/L 9720 9190 1.06 Agreement 1 pCi/L 9700 9190 1.06 Agreement 1 pCi/L 6970 7750 0.90 Agreement Cs-134 1 pCi/L 7020 7750 0.91 Agreement 1 pCi/L 6980 7750 0.90 Agreement 1 pCi/L 5240 4930 1.06 Agreement Cs-137 1 pCi/L 5340 4930 1.08 Agreement 1 pCi/L 5230 4930 1.06 Agreement Section 4 - Page 6

TABLE 4.0-A (Cont.)

EnRad GO EnRad/GO Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Gamma in Q161GWR 1 pCi/L 7640 6890 1.11 Agreement Water 3.5 L Mn-54 1 pCi/L 7680 6890 1.12 Agreement 1 pCi/L 7690 6890 1.12 Agreement 1 pCi/L 5110 4880 1.05 Agreement Co-57 1 pCi/L 5240 4880 1.07 Agreement 1 pCi/L 5210 4880 1.07 Agreement 1 pCi/L 4750 4370 1.09 Agreement Co-60 1 pCi/L 4710 4370 1.08 Agreement 1 pCi/L 4630 4370 1.06 Agreement 1 pCi/L 11900 10600 1.12 Agreement Zn-65 1 pCi/L 12000 10600 1.13 Agreement 1 pCi/L 11800 10600 1.11 Agreement 1 pCi/L 3360 3310 1.01 Agreement Y-88 1 pCi/L 3490 3310 1.05 Agreement 1 pCi/L 3380 3310 1.02 Agreement 1 pCi/L 9970 9190 1.08 Agreement Sn-113 1 pCi/L 9970 9190 1.08 Agreement 1 pCi/L 9860 9190 1.07 Agreement 1 pCi/L 7410 7750 0.96 Agreement Cs-134 1 pCi/L 7390 7750 0.95 Agreement 1 pCi/L 7350 7750 0.95 Agreement 1 pCi/L 5340 4930 1.08 Agreement Cs-137 1 pCi/L 5420 4930 1.10 Agreement 1 pCi/L 5250 4930 1.06 Agreement Section 4 - Page 7

TABLE 4.0-A (Cont.)

EnRad GO EnRad/GO Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Q163GWR 3 pCi/L 30400 26400 1.15 Agreement Gamma in 0.25 L Cr-51 3 pCi/L 28800 26400 1.09 Agreement Water 3 pCi/L 28600 26400 1.08 Agreement 3 pCi/L 26700 21800 1.23 Agreement Mn-54 3 pCi/L 25300 21800 1.16 Agreement 3 pCi/L 24900 21800 1.14 Agreement 3 pCi/L 23100 20200 1.14 Agreement Co-58 3 pCi/L 21700 20200 1.07 Agreement 3 pCi/L 21500 20200 1.06 Agreement 3 pCi/L 19100 14900 1.28 Warning1 Fe-59 3 pCi/L 18100 14900 1.21 Agreement 3 pCi/L 18000 14900 1.20 Agreement 3 pCi/L 38100 31400 1.21 Agreement Co-60 3 pCi/L 35600 31400 1.13 Agreement 3 pCi/L 35600 31400 1.13 Agreement 3 pCi/L 52500 40000 1.31 Warning1 Zn-65 3 pCi/L 49200 40000 1.23 Agreement 3 pCi/L 49100 40000 1.23 Agreement 3 pCi/L 32100 31300 1.03 Agreement Cs-134 3 pCi/L 30200 31300 0.97 Agreement 3 pCi/L 29700 31300 0.95 Agreement 3 pCi/L 25900 22100 1.17 Agreement Cs-137 3 pCi/L 24500 22100 1.11 Agreement 3 pCi/L 24100 22100 1.09 Agreement 3 pCi/L 16900 14700 1.15 Agreement Ce-141 3 pCi/L 15800 14700 1.08 Agreement 3 pCi/L 16100 14700 1.10 Agreement

1) Warnings were caused by expected double humped coincidence summing and the FSS cross check provider did not request an investigation and does not constitute a non-agreement.

Section 4 - Page 8

TABLE 4.0-A (Cont.)

EnRad GO EnRad/GO Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Q163GWR 3 pCi/L 27200 26400 1.03 Agreement Gamma in 0.5 L Cr-51 3 pCi/L 27200 26400 1.03 Agreement Water 3 pCi/L 26900 26400 1.02 Agreement 3 pCi/L 23700 21800 1.09 Agreement Mn-54 3 pCi/L 23900 21800 1.10 Agreement 3 pCi/L 24000 21800 1.10 Agreement 3 pCi/L 20400 20200 1.01 Agreement Co-58 3 pCi/L 20700 20200 1.02 Agreement 3 pCi/L 20700 20200 1.02 Agreement 3 pCi/L 16800 14900 1.12 Agreement Fe-59 3 pCi/L 17100 14900 1.14 Agreement 3 pCi/L 17200 14900 1.15 Agreement 3 pCi/L 33500 31400 1.07 Agreement Co-60 3 pCi/L 34200 31400 1.09 Agreement 3 pCi/L 34000 31400 1.08 Agreement 3 pCi/L 46100 40000 1.15 Agreement Zn-65 3 pCi/L 47000 40000 1.17 Agreement 3 pCi/L 46900 40000 1.17 Agreement 3 pCi/L 30900 31300 0.99 Agreement Cs-134 3 pCi/L 28800 31300 0.92 Agreement 3 pCi/L 28800 31300 0.92 Agreement 3 pCi/L 22900 22100 1.04 Agreement Cs-137 3 pCi/L 23300 22100 1.05 Agreement 3 pCi/L 23200 22100 1.05 Agreement 3 pCi/L 15000 14700 1.02 Agreement Ce-141 3 pCi/L 15300 14700 1.04 Agreement 3 pCi/L 15300 14700 1.04 Agreement Section 4 - Page 9

TABLE 4.0-A (Cont.)

EnRad GO EnRad/GO Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Q163GWR 3 pCi/L 27700 26400 1.05 Agreement Gamma in 3.5 L Cr-51 3 pCi/L 27600 26400 1.04 Agreement Water 3 pCi/L 27400 26400 1.04 Agreement 3 pCi/L 23600 21800 1.08 Agreement Mn-54 3 pCi/L 23800 21800 1.09 Agreement 3 pCi/L 23700 21800 1.09 Agreement 3 pCi/L 20600 20200 1.02 Agreement Co-58 3 pCi/L 20800 20200 1.03 Agreement 3 pCi/L 20700 20200 1.02 Agreement 3 pCi/L 16500 14900 1.10 Agreement Fe-59 3 pCi/L 16700 14900 1.12 Agreement 3 pCi/L 16500 14900 1.10 Agreement 3 pCi/L 34100 31400 1.09 Agreement Co-60 3 pCi/L 34100 31400 1.09 Agreement 3 pCi/L 34000 31400 1.08 Agreement 3 pCi/L 45600 40000 1.14 Agreement Zn-65 3 pCi/L 45900 40000 1.15 Agreement 3 pCi/L 45500 40000 1.14 Agreement 3 pCi/L 32700 31300 1.05 Agreement Cs-134 3 pCi/L 30100 31300 0.96 Agreement 3 pCi/L 29900 31300 0.96 Agreement 3 pCi/L 23100 22100 1.05 Agreement Cs-137 3 pCi/L 23400 22100 1.06 Agreement 3 pCi/L 23200 22100 1.05 Agreement 3 pCi/L 15400 14700 1.05 Agreement Ce-141 3 pCi/L 15700 14700 1.07 Agreement 3 pCi/L 15500 14700 1.06 Agreement Section 4 - Page 10

TABLE 4.0-A (Cont.)

EnRad GO EnRad/GO Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Tritium in 1 pCi/L 4880 4730 1.03 Agreement Water Q161TWR1 H-3 1 pCi/L 4810 4730 1.02 Agreement 1 pCi/L 4770 4730 1.01 Agreement 1 pCi/L 80200 81200 0.99 Agreement Q161TWR2 H-3 1 pCi/L 80100 81200 0.99 Agreement 1 pCi/L 79700 81200 0.98 Agreement 1 pCi/L 488 471 1.04 Agreement Q161TWR3 H-3 1 pCi/L 478 471 1.02 Agreement 1 pCi/L 479 471 1.02 Agreement Tritium in 3 pCi/L 1230 1250 0.98 Agreement Water Q163TWR1 H-3 3 pCi/L 1170 1250 0.93 Agreement 3 pCi/L 1220 1250 0.97 Agreement 3 pCi/L 134000 134000 1.00 Agreement Q163TWR2 H-3 3 pCi/L 134000 134000 1.00 Agreement 3 pCi/L 132000 134000 0.99 Agreement 3 pCi/L 380 387 0.98 Agreement2 Q163TWR3 H-3 3 pCi/L Agreement2 388 387 1.00 3 pCi/L 413 1.07 Agreement2 387

2) NCR # 02074856 Section 4 - Page 11

TABLE 4.0-A (Cont.)

EnRad GO EnRad/GO Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio 2 pCi/L 84.7 79.6 1.06 Agreement LLI-131 in Q162LIW4 I-131 2 pCi/L 85.6 79.6 1.07 Agreement Water 2 pCi/L 84.4 79.6 1.06 Agreement 2 pCi/L 2030 1850 1.10 Agreement Q162LIW5 I-131 2 pCi/L 1950 1850 1.05 Agreement 2 pCi/L 2000 1850 1.08 Agreement 2 pCi/L 403 380 1.06 Agreement Q162LIW6 I-131 2 pCi/L 396 380 1.04 Agreement 2 pCi/L 391 380 1.03 Agreement Alpha Beta in 3 pCi/L 603 470 1.28 Warning3 Water Am-241 3 pCi/L 591 470 1.26 Warning3 3 pCi/L 588 470 1.25 Agreement Q163ABW1 Cs-137 3 pCi/L 293 289 1.01 Agreement 3 pCi/L 293 289 1.01 Agreement 3 pCi/L 288 289 1.00 Agreement 3 pCi/L 381 271 1.41 Non-Agreement3 Am-241 3 pCi/L 380 271 1.40 Non-Agreement3 3 pCi/L 377 271 1.39 Non-Agreement3 Q163ABW2 3 pCi/L 262 258 1.02 Agreement Cs-137 3 pCi/L 260 258 1.01 Agreement 3 pCi/L 270 258 1.05 Agreement 3 pCi/L 321 238 1.35 Non-Agreement3 Am-241 3 pCi/L 326 238 1.37 Non-Agreement3 Q163ABW3 3 pCi/L 308 238 1.29 Warning3 3 pCi/L 489 493 0.99 Agreement Cs-137 3 pCi/L 486 493 0.99 Agreement 3 pCi/L 483 493 0.98 Agreement

3) NCR # 02072622 Section 4 - Page 12

TABLE 4.0-B ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM 2016 Cross Check Results for EnRad Laboratories Interlaboratory cross check samples from EZA were received and analyzed in all four quarters of 2016. Results are reported directly to Eckert & Ziegler Analytics. Environmental cross check samples were analyzed in replicate, and the result closest to the mean is reported to Eckert & Ziegler Analytics. The acceptance criteria for the program was based on the NRC Inspection Manual Procedure 84750 (IP 84750). Table 4.0-B lists the performance for specific samples.

Seventy-nine results were reported of which 79 (100%) met the acceptance criteria based on IP 84750.

EnRad EZA EnRad/EZA Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio E11474A Cs-137 1 pCi 139 134 1.05 Agreement Beta Filter in E11591 Cs-137 3 pCi 55.5 56.7 0.98 Agreement Planchet E11665A Cs-137 4 pCi 225 228 0.99 Agreement Gamma in E11529 Ce-141 2 pCi/g 0.19 0.21 0.92 Agreement Soil Cr-51 2 pCi/g 0.41 0.42 0.98 Agreement Cs-134 2 pCi/g 0.26 0.27 0.97 Agreement Cs-137 2 pCi/g 0.25 0.26 0.94 Agreement Co-58 2 pCi/g 0.20 0.22 0.91 Agreement Mn-54 2 pCi/g 0.20 0.19 1.02 Agreement Fe-59 2 pCi/g 0.19 0.19 1.04 Agreement Zn-65 2 pCi/g 0.37 0.36 1.04 Agreement Co-60 2 pCi/g 0.25 0.26 0.96 Agreement LLI-131 E11526 I-131 2 pCi/L 109 99.8 1.09 Agreement1 in Water Gross Am-241 2 pCi/L 83.6 74.9 1.12 Agreement2 Alpha/Beta in E11527 Water Cs-137 2 pCi/L 251 250 1.00 Agreement2 Gamma in E11528 Ce-141 2 pCi/g 0.23 0.23 1.01 Agreement Vegetation Cr-51 2 pCi/g 0.44 0.45 0.98 Agreement (Coffee Grounds) Cs-134 2 pCi/g 0.27 0.29 0.94 Agreement Cs-137 2 pCi/g 0.20 0.20 1.00 Agreement Co-58 2 pCi/g 0.22 0.23 0.96 Agreement Mn-54 2 pCi/g 0.21 0.21 1.00 Agreement Fe-59 2 pCi/g 0.20 0.20 1.00 Agreement Zn-65 2 pCi/g 0.45 0.39 1.17 Agreement Co-60 2 pCi/g 0.28 0.28 0.98 Agreement

1) NCR #02045683

2) NCR #02052857 Section 4 - Page 13

TABLE 4.0-B (Cont.)

EnRad EZA EnRad/EZA Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Gamma in E11471 Ce-141 1 pCi 80.1 75.6 1.06 Agreement Composite Filter Cr-51 1 pCi 213 187 1.14 Agreement Cs-134 1 pCi 102 99.9 1.02 Agreement Cs-137 1 pCi 119 124 0.96 Agreement Co-58 1 pCi 86.9 90.2 0.96 Agreement Mn-54 1 pCi 92.9 89.6 1.04 Agreement Fe-59 1 pCi 110 101 1.09 Agreement Zn-65 1 pCi 139 137 1.01 Agreement Co-60 1 pCi 195 187 1.04 Agreement Gamma in E11590 Ce-141 3 pCi 76.0 70.3 1.08 Agreement Composite Filter Cr-51 3 pCi 183 178 1.03 Agreement3 Cs-134 3 pCi 102 102 1.00 Agreement Cs-137 3 pCi 88.3 89.4 0.99 Agreement Co-58 3 pCi 72.1 73.4 0.98 Agreement Mn-54 3 pCi 115 115 1.00 Agreement Fe-59 3 pCi 63.5 68.4 0.93 Agreement Zn-65 3 pCi 143 135 1.06 Agreement Co-60 3 pCi 104 102 1.02 Agreement Gamma in E11588 I-131 3 pCi/L 50.3 49.0 1.03 Agreement Water Ce-141 3 pCi/L 89.5 85.2 1.05 Agreement Cr-51 3 pCi/L 230 215 1.07 Agreement Cs-134 3 pCi/L 112 124 0.90 Agreement Cs-137 3 pCi/L 112 108 1.03 Agreement Co-58 3 pCi/L 88.9 89.0 1.00 Agreement Mn-54 3 pCi/L 149 139 1.07 Agreement Fe-59 3 pCi/L 97.4 82.8 1.18 Agreement4 Zn-65 3 pCi/L 180 163 1.10 Agreement Co-60 3 pCi/L 131 123 1.06 Agreement

3) NCR # 02080821

4) NCR # 02074444 Section 4 - Page 14

TABLE 4.0-B (Cont.)

Sample EnRad EZA EnRad/EZA Sample Nuclide Quarter Units Evaluation ID Value Value Ratio Gamma in E11589 Ce-141 3 pCi 84.6 72.9 1.16 Agreement Filter Cr-51 3 pCi 209 184 1.13 Agreement (Falcon)

Cs-134 3 pCi 123 106 1.16 Agreement Cs-137 3 pCi 99.8 92.7 1.08 Agreement Co-58 3 pCi 75.8 76.1 1.00 Agreement Mn-54 3 pCi 123 119 1.03 Agreement Fe-59 3 pCi 79.7 70.9 1.12 Agreement Zn-65 3 pCi 171 140 1.22 Agreement Co-60 3 pCi 116 105 1.10 Agreement Gamma in E11475 I-131 1 pCi/L 86.5 82.2 1.05 Agreement Milk Ce-141 1 pCi/L 101 98.4 1.03 Agreement Cr-51 1 pCi/L 243 243 1.00 Agreement Cs-134 1 pCi/L 121 130 0.93 Agreement Cs-137 1 pCi/L 175 161 1.09 Agreement Co-58 1 pCi/L 117 117 1.00 Agreement Mn-54 1 pCi/L 127 117 1.09 Agreement Fe-59 1 pCi/L 143 131 1.09 Agreement Zn-65 1 pCi/L 186 179 1.04 Agreement Co-60 1 pCi/L 266 244 1.09 Agreement Gross Am-241 4 pCi/L 135 146 0.92 Agreement Alpha/Beta E11668 in Water Cs-137 4 pCi/L 270 293 0.92 Agreement LLI-131 in E11472 I-131 1 pCi/L 102 92 1.11 Agreement5 Milk E11592 I-131 3 pCi/L 82.6 81.5 1.01 Agreement Tritium in E11530 H-3 2 pCi/L 12200 12000 1.01 Agreement Water E11666 H-3 4 pCi/L 11900 11900 1.00 Agreement I-131 in E11473 I-131 1 pCi 90 89 1.01 Agreement Charcoal E11587 Cartridge I-131 3 pCi 61.9 58.6 1.06 Agreement

5) NCR # 02027474 Section 4 - Page 15

TABLE 4.0-C ENVIRONMENTAL RESOURCE ASSOCIATES (ERA)

PROFICIENCY TESTING 2016 Proficiency Test Results for EnRad Laboratories North Carolina Department of Health and Human Services Laboratory Certification EnRad Laboratories Proficiency test samples are received, prepared, and analyzed in second and fourth quarters of 2016. Results are reported directly to Environmental Resource Associates as described in the instruction package within the study period. Proficiency test data are reported to ERA for evaluation. The acceptance criteria for the program was based on the National Environmental Laboratory Accreditation Conference (NELAC) Field of Proficiency Testing criteria. Fourteen results were reported of which 14 (100 %) met the acceptance criteria. ERA reports proficiency test results to the North Carolina Department of Health and Human Services, North Carolina Public Drinking Water Laboratory Certification Program. This testing is to satisfy the North Carolina state drinking water radiochemistry certification requirements.

EnRad ERA Acceptance Sample Sample ID Nuclide Quarter Units Evaluation Value Value Limits Ba-133 2 pCi/L 56.6 58.8 48.7-64.9 Agreement Gamma Cs-134 2 pCi/L 42.8 43.3 34.6-47.6 Agreement Emitters in RAD-105 Cs-137 2 pCi/L 86.3 78.4 70.6-88.9 Agreement Water pCi/L Agreement Co-60 2 101 102 91.8-114 Zn-65 2 pCi/L 244 214 193-251 Agreement1 Ba-133 4 pCi/L 54 54.9 45.4-60.7 Agreement Cs-134 4 pCi/L 77.4 81.8 67.0-90.0 Agreement RAD-107 Cs-137 4 pCi/L 210 210 189-233 Agreement Co-60 4 pCi/L 68.9 64.5 58.0-73.4 Agreement Zn-65 4 pCi/L 280 245 220-287 Agreement Tritium in RAD-105 H-3 2 pCi/L 7940 7840 6790-8620 Agreement Water RAD-107 H-3 4 pCi/L 9670 9820 8540-10800 Agreement Iodine-131 RAD-105 I-131 2 pCi/L 28.1 26.6 22.1-31.3 Agreement in Water RAD-107 I-131 4 pCi/L 30.7 26.3 21.9-31.0 Agreement2

1) NCR # 02032824

2) NCR #02081918 Section 5 - Page 16

TABLE 4.0-D 2016 ENVIRONMENTAL DOSIMETER CROSS-CHECK RESULTS Nuclear Technology Services Radiation Dosimetry and Records participates in a quarterly TLD intercomparison program administered by Nuclear Technology Services, Inc. of Roswell, GA. Nuclear Techno1ogy Services irradiates environmental dosimeters quarterly and sends them to Radiation Dosimetry and Records group for analysis of the unknown estimated delivered exposure. The individual measurements were evaluated and results falling outside the acceptable ratio criteria had an evaluation performed to identify any recommended remedial actions and to reduce anomalous errors. Complete documentation of any evaluation will be available and provided to the NRC upon request.

1st Quarter 2016 2nd Quarter 2016 TLD Reported Delivered Bias Pass/Fail TLD Reported Delivered Bias Pass/Fail Number (mR) (mR) (% diff) Criteria Pass/Fail Number (mR) (mR) (% diff) Criteria Pass/Fail 102234 90.33 88.74 1.79 <+/-15% Pass 103685 16.86 15.90 6.04 <+/-15% Pass 102082 87.38 88.74 -1.53 <+/-15% Pass 103686 17.24 15.90 8.43 <+/-15% Pass 103299 90.78 88.74 2.30 <+/-15% Pass 103704 15.76 15.90 -0.88 <+/-15% Pass 103287 95.55 88.74 7.67 <+/-15% Pass 103705 16.21 15.90 1.95 <+/-15% Pass 103752 92.49 88.74 4.23 <+/-15% Pass 103714 17.45 15.90 9.75 <+/-15% Pass Average Bias (B) 2.89 Average Bias (B) 5.06 Standard Deviation (S) 3.38 Standard Deviation (S) 4.45 Measure Performance lBl+S 6.27 <15% Pass Measure Performance lBl+S 9.51 <15% Pass 3rd Quarter 2016 4th Quarter 2016 TLD Reported Delivered Bias Pass/Fail TLD Reported Delivered Bias Pass/Fail Number (mR) (mR) (% diff) Criteria Pass/Fail Number (mR) (mR) (% diff) Criteria Pass/Fail 102058 73.65 69.8 5.58 <+/-15% Pass 100527 81.50 75.3 8.23 <+/-15% Pass 103540 76.65 69.8 9.88 <+/-15% Pass 100345 80.56 75.3 6.99 <+/-15% Pass 103523 82.05 69.8 17.62 <+/-15% Fail1 101386 82.55 75.3 9.63 <+/-15% Pass 100795 74.03 69.8 6.12 <+/-15% Pass 100123 81.17 75.3 7.80 <+/-15% Pass 100355 71.79 69.8 2.91 <+/-15% Pass 103511 87.26 75.3 15.88 <+/-15% Fail1 Average Bias (B) 8.42 Average Bias (B) 9.71 Standard Deviation (S) 5.71 Standard Deviation (S) 3.58 Measure Performance lBl+S 14.13 <15% Pass Measure Performance lBl+S 13.29 <15% Pass rd th

1) NCR # 02106779 generated for 3 and 4 Quarter 2016 failures Section 5 - Page 17

TABLE 4.0-E 2016 ANNUAL QUALITY ASSURANCE REPORT for the RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM for GEL Laboratories, LLC (GEL)

GEL Known Acceptance Sample Nuclide Quarter Units Evaluation Value Value Range/Ratio HTD in Soil MAPEP-16-MaS34 Fe-55 2nd Bq/Kg 197 428 300 - 556 Non-agreement (2Q 2016) Ni-63 2nd Bq/Kg 1240 1250 875 - 1625 Agreement Sr-90 2nd Bq/Kg -3.40 False Pos Test Agreement MAPEP-16-MaS35 Fe-55 4th Bq/kg -337 0 False Pos Test Agreement (4Q 2016) Ni-63 4th Bq/kg 1090 990 693 - 1287 Agreement Sr-90 4 th Bq/kg 770 894 626 - 1162 Agreement I-131 in Milk with EZA 4Q 2015 E11414 I-131 4th pCi/L 101 91.2 1.11 Agreement 1Q 2016 E11447 I-131 1 st pCi/L 94.1 82.2 1.15 Agreement 2Q 2016 E11575 I-131 2nd pCi/L 97.7 94.5 1.03 Agreement 3Q 2016 E11607 I-131 3rd pCi/L 75.3 71.9 1.05 Agreement 4Q 2016 E11676 I-131 4th pCi/L 108 97.4 1.11 Agreement Transuranics in Water MAPEP-16-MaW34 Plutonium - 238 2nd Bq/L 1.14 1.244 0.871 - 1.617 Agreement Plutonium -

(2Q 2016) 239/240 2nd Bq/L 0.586 0.641 0.449 - 0.833 Agreement Uranium -

234/233 2nd Bq/L 1.37 1.48 1.04 - 1.92 Agreement Uranium - 238 2nd Bq/L 1.43 1.53 1.07 - 1.99 Agreement MAPEP-16-MaW35 Plutonium - 238 4th Bq/L 1.09 1.13 0.79 - 1.47 Agreement Plutonium -

(4Q 2016) 239/240 4th Bq/L 0.024 0.013 Sens. Eval. Agreement Uranium -

234/233 4th Bq/L 1.85 1.86 1.30 - 2.42 Agreement Uranium - 238 4th Bq/L 1.89 1.92 1.34 - 2.50 Agreement Note:

• HTD refers to Hard-to-detect radionuclides Section 5 - Page 18

TABLE 4.0-E (Cont.)

GEL Known Acceptance Sample Nuclide Quarter Units Evaluation Value Value Range/Ratio Transuranics Plutonium - 238 2nd pCi/L 126 138 102 - 172 Agreement in Water Plutonium - 239 2nd pCi/L 88.2 98.7 76.6 - 124 Agreement Uranium - 234 2nd pCi/L 59.3 52.7 39.6 - 68.0 Agreement MRAD - 24 Uranium - 234 2nd pCi/L 49.9 52.7 39.6 - 68.0 Agreement (2Q 2016) Uranium - 234 2nd pCi/L 49.8 52.7 39.6 - 68.0 Agreement Uranium - 238 2nd pCi/L 54.1 52.3 39.9 - 64.2 Agreement Uranium - 238 2nd pCi/L 53.7 52.3 39.9 - 64.2 Agreement Uranium - 238 2nd pCi/L 49.1 52.3 39.9 - 64.2 Agreement Uranium - Total 2nd pCi/L 110.7 107 78.6 - 138 Agreement Uranium - Total 2nd pCi/L 158 107 78.6 - 138 Non-agreement Uranium - Total 2nd pCi/L 106.4 107 78.6 - 138 Agreement Uranium - Total 2nd pCi/L 103.9 107 78.6 - 138 Agreement MRAD - 25 Plutonium - 238 4th pCi/L 85.6 112 82.9 - 139 Agreement (4Q 2016) Plutonium - 239 4 th pCi/L 125 157 122 - 198 Agreement Uranium - 234 4th pCi/L 106 105 78.9 - 135 Agreement Uranium - 234 4 th pCi/L 108 105 78.9 - 135 Agreement Uranium - 234 4 th pCi/L 103 105 78.9 - 135 Agreement Uranium - 238 4 th pCi/L 98.4 104 79.3 - 128 Agreement Uranium - Total 4th pCi/L 209 213 157 - 275 Agreement Uranium - Total 4 th pCi/L 225 213 157 - 275 Agreement Uranium - Total 4 th pCi/L 214 213 157 - 275 Agreement Uranium - Total 4 th pCi/L 211 213 157 - 275 Agreement Other GEL 2016 Annual Environmental Quality Assurance Report results will be supplied upon request.

Section 5 - Page 19

TABLE 4.0-F ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM 2016 Cross Check Results for BSEP Laboratories BSEP BSEP/EZA Sample Nuclide Quarter Units EZA Value Evaluation Value Ratio Tritium in Water A31708 1Q H-3 1st µCi/cc 7.78E-04 7.40E-04 1.05 Agreement Gamma Solid Ce-141 3rd µCi 3.15E-02 3.04E-02 1.04 Agreement A31966 3Q Cr-51 3rd µCi 8.99E-02 8.69E-02 1.03 Agreement Cs-134 3rd µCi 2.09E-02 2.21E-02 0.95 Agreement Cs-137 3rd µCi 1.94E-02 1.87E-02 1.03 Agreement Co-58 3rd µCi 2.19E-02 2.14E-02 1.02 Agreement Mn-54 3rd µCi 2.80E-02 2.59E-02 1.08 Agreement Fe-59 3rd µCi 2.62E-02 2.43E-02 1.08 Agreement Zn-65 3rd µCi 3.54E-02 3.10E-02 1.14 Agreement Co-60 3rd µCi 2.23E-02 2.15E-02 1.04 Agreement Ce-141 4th µCi 3.72E-02 3.65E-02 1.02 Agreement A32248 4Q Cr-51 4th µCi 8.60E-02 7.92E-02 1.09 Agreement Cs-134 4th µCi 2.55E-02 2.63E-02 0.97 Agreement Cs-137 4th µCi 1.87E-02 1.82E-02 1.02 Agreement Co-58 4th µCi 2.74E-02 2.75E-02 1.00 Agreement Mn-54 4th µCi 2.09E-02 1.98E-02 1.06 Agreement Fe-59 4th µCi 2.91E-02 2.73E-02 1.06 Agreement Zn-65 4th µCi 3.94E-02 3.79E-02 1.04 Agreement Co-60 4th µCi 2.64E-02 2.58E-02 1.02 Agreement Ce-141 4th µCi 1.39E-02 1.21E-02 1.15 Agreement A32249 4Q Cr-51 4th µCi 3.25E-02 2.62E-02 1.24 Agreement Cs-134 4th µCi 9.20E-03 8.69E-03 1.06 Agreement Cs-137 4th µCi 6.96E-03 6.02E-03 1.16 Agreement Co-58 4th µCi 1.02E-02 9.09E-03 1.13 Agreement Mn-54 4th µCi 7.54E-03 6.54E-03 1.15 Agreement Fe-59 4th µCi 1.05E-02 9.04E-03 1.16 Agreement Zn-65 4th µCi 1.53E-02 1.25E-02 1.22 Agreement Co-60 4th µCi 9.73E-03 8.55E-03 1.14 Agreement Section 5 - Page 20

APPENDIX A ENVIRONMENTAL SAMPLING ANALYSIS PROCEDURES Appendix A - Page 1

APPENDIX A ENVIRONMENTAL SAMPLING AND ANALYSIS PROCEDURES Adherence to established procedures for sampling and analysis of environmental media at the Brunswick Steam Electric Plant (BSEP) was required to ensure compliance with provisions of the Nuclear Regulatory Commissions Regulatory Guide 4.8, BSEP Technical Specifications, and the BSEP Offsite Dose Calculation Manual (ODCM). Analytical procedures were employed to ensure that the ODCM detection capabilities were achieved at all laboratories (BSEP, EnRad, and GEL).

Environmental sampling was performed by BSEP and Environmental Water Resources Group; while the analyses were performed by BSEP, EnRad Laboratories, General Engineering Laboratory, LLC (GEL) (for special analyses), and Dosimetry and Records.

This appendix describes the environmental sampling frequencies and analysis procedures by media type that each laboratory conducted in 2016.

I. CHANGE OF SAMPLING PROCEDURES REMP air filter orientation was changed during 2016 by inward facing the scrim side (shiny side or fuzzy side) and outward facing the crosshatch side (dull side or paper side) as indicated by manufacturer recommendation (NCR # 02026783, 02088360).

II. DESCRIPTION OF ANALYSIS PROCEDURES Gamma spectroscopy analyses are performed using high purity germanium gamma detectors and Canberra analytical software. Designated sample volumes are transferred to appropriate counting geometries and analyzed by gamma spectroscopy. Perishable samples such as fish, invertebrates, and broadleaf vegetation are ground to achieve a homogeneous mixture and then transferred to an appropriate counting geometry. Soil and sediment samples are dried, sifted to remove foreign objects (rocks, clams, glass, etc.), and then transferred to an appropriate counting geometry container. Once prepared for counting, EnRads samples (fish, invertebrates, broadleaf vegetation, soils, and sediments) are analyzed by gamma spectroscopy.

Tritium analyses are performed monthly by EnRad using low-level environmental liquid scintillation analysis technique on a Perkin-Elmer 2900TR liquid scintillation system or a Perkin-Elmer 3100TR liquid scintillation system. Tritium samples are distilled and batch processed with a laboratory fortified blank, matrix spike, matrix spike duplicate, and blank to verify instrument performance and sample preparation technique are acceptable.

Appendix A - Page 2

Gross beta analysis is performed weekly on air particulate filter samples by Tennelec XLB Series 5 gas-flow proportional counters. Samples are batch processed with a blank to ensure sample contamination has not occurred.

BSEP and GEL Laboratories follow their facility approved procedures to meet the required BSEP ODCM LLDs.

III. CHANGE OF ANALYSIS PROCEDURES REMP air filter orientation was changed during 2016 by inward facing the scrim side (shiny side or fuzzy side) and outward facing the crosshatch side (dull side or paper side) as indicated by manufacturer recommendation (NCR # 02026783, 02088360).

Calibration standards using the new configuration were implemented during 2016.

REMP fish and invertebrates (shrimp) from Nancy's Creek, which are collected annually per the BSEP ODCM do not require a tritium analysis; however, for the past eight years the samples have been analyzed for tritium. No tritium activity has been detected in these samples for eight years; therefore, the BSEP REMP owner determined that the BSEP REMP fish and invertebrate samples collected November 2016 from the Nancy's Creek sample location did not require tritium analysis for that collection period or future collections.

IV. SAMPLING AND ANALYSIS PROCEDURES A.1 AIRBORNE PARTICULATE AND RADIOIODINE Air particulate and air cartridge/air radioiodine samples at each of seven locations were composited continuously by means of continuous air samplers.

Air particulates were collected on a particulate filter and radioiodines were collected in a charcoal cartridge positioned behind the filter in the sample head.

The samplers are designed to operate at a constant flow rate (in order to compensate for any filter loading) and are set to sample approximately 2 cubic feet per minute. Filters and cartridges were collected weekly. A separate weekly gamma analysis was performed on each charcoal cartridge. A weekly gross beta analysis was performed on each filter and then the filters were composited to produce quarterly samples for gamma analysis. The continuous composite samples were collected from the locations listed below.

Location 200 = 1.0 miles WSW Visitors Center Location 201 = 0.5 miles NE Bio Lab Rd. - Projected Maximum Annual Concentration (PMAC)

Location 202 = 1.0 miles S Substation, Construction Rd.

Location 203 = 2.0 miles SSW Southport substation Location 204 = 22.4 miles NNE Sutton Plant (Historical Control)

Appendix A - Page 3

Location 205 = 0.6 miles SSE Spoil Pond Location 206 = 11.3 miles NW Brunswick County Complex (Control)

A.2 SURFACE WATER A total of fifteen (15) Surface Water samples are collected at different intervals as stated in the BSEP ODCM. Monthly composite surface water samples were collected from two locations (SW-400 and 401) for gamma and tritium analyses.

Weekly and Monthly grab samples were collected from five locations (SW-495

- 499). The weekly grab samples were analyzed for tritium, while the monthly grab samples were analyzed for gamma emitters. Weekly grab samples were collected from eight locations (SW-494, 604 - 610) and analyzed for tritium and ODCM specific sample combination composite samples for gamma analysis. The samples are collected from the locations listed below.

Location 400 = 0.6 miles NE - Intake Canal (Control)

Location 401 = 4.9 miles SSW - Discharge Canal @ OD Pumps Location 494 = Nancys Creek Marsh Area - WP-106 Location 495 = Nancys Creek - WP-52 Location 496 = Nancys Creek - WP-53 Location 497 = Nancys Creek - WP-55 Location 498 = Nancys Creek - WP-57 Location 499 = Nancys Creek - WP-61 (Control)

Location 604 = Nancys Creek Marsh Area - WP-92 Location 605 = Nancys Creek Marsh Area - WP-72 Location 606 = Nancys Creek Marsh Area - WP-74 Location 607 = Nancys Creek Marsh Area - WP-76 Location 608 = Nancys Creek Marsh Area - WP-82 Location 609 = Nancys Creek Marsh Area - WP-84 Location 610 = Nancys Creek Marsh Area - WP-88 Location 1065 = Waypoint Composite (70) of Locations 605, 606, 607 Location 1066 = Waypoint Composite (80) of Locations 608, 609, 610 Location 1067 = Waypoint Composite of Locations 494 and 604 A.3 GROUND WATER Grab samples were collected quarterly and semiannually from ground water wells at ten (10) locations. A tritium analysis was performed quarterly and a gamma analysis was performed semiannually on each sample. The samples were collected from the locations listed below.

Location 404 = Monitoring Well ESS-1B - 0.16 miles SW Location 407 = Monitoring Well ESS-13B - 0.06 miles ENE Location 409 = Monitoring Well ESS-17A - 0.65 miles NE Location 410 = Monitoring Well ESS-17B - 0.65 miles NE Location 418 = Monitoring Well ESS-21B - Near SDSP Location 423 = Monitoring Well ESS-24A - Near SDSP Appendix A - Page 4

Location 424 = Monitoring Well ESS-24B - Near SDSP Location 426 = Monitoring Well ESS-25B - Near SDSP Location 429 = Monitoring Well ESS-27A - Near SDSP Location 612 = Monitoring Well ESS MWPA-118B - Near Intake Canal & Plant Stack Note: SDSP = Storm Drain Stabilization Pond A.4 BROADLEAF VEGETATION Monthly samples were collected at each of five locations during 2016. A gamma analysis was performed on each sample. The samples were collected from the locations listed below.

Location 800 = 0.7 miles NE - Intake Canal Location 801 = 0.8 miles SW - Discharge Canal Location 802 = 10.1 miles - location not specified (Control)

Location 803 = 0.6 miles SSE - Spoil Pond Location 804 = 0.7 miles S - Leonard Street plant exit adjacent to RR tracks A.5 FISH and INVERTEBRATES Fish (free swimmers and bottom feeders) and Invertebrates (shell fish and/or benthic organisms) samples are collected semiannually from two locations (near the Atlantic Ocean discharge pipe at Caswell Beach and a control location in the Atlantic Ocean not influenced by plant operations) and annually from three locations on Nancys Creek (see Figure 2.1-4). A gamma analysis was performed on the edible portions of each sample. The samples were collected from the locations listed below.

Location 700 = 5.5 miles SSW - Atlantic Ocean @ discharge (free swimmers)

Location 701 = 5.5 miles SSW - Atlantic Ocean @ discharge (bottom feeders)

Location 702 = 5.5 miles SSW - Atlantic Ocean @ discharge (shellfish/ Invertebrates)

Location 703 = Atlantic Ocean; location not specified (free swimmer)

- (Control)

Location 704 = Atlantic Ocean; location not specified (bottom feeders) - (Control)

Location 705 = Atlantic Ocean; location not specified (shellfish/

Invertebrates)

Location 706 = Nancys Creek; location not specified (free swimmer)

Location 707 = Nancys Creek; location not specified (bottom feeders)

Location 708 = Nancys Creek; location not specified (shellfish/

Invertebrates)

Appendix A - Page 5

A.6 SHORELINE SEDIMENT Semiannual samples were collected at one location (SS-500), while an annual sample was collected at another location (SS-501). A gamma analysis was performed on each sample following the drying and removal of rocks and clams.

If activity attributed to plant operations is detected in the annual shoreline sediment gamma analysis for SS-501, then the sample is analyzed for Hard-to-detect radionuclides (Fe-55 and Sr-89, 90) by a vendor laboratory (GEL) and the sample frequency is increased to semiannually. The samples were collected from the locations listed below.

Location 500 = 5.0 miles SSW - Discharge; Beach near Ocean Discharge (OD) pumps Location 501 = Nancys Creek, Adjacent to WP-55, Near Storm Drain Stabilization Pond A.7 DIRECT GAMMA RADIATION (TLD)

Thermoluminescent dosimeters (TLD) were collected quarterly at forty-five locations and four quarterly ISFSI TLDs. A gamma exposure rate was determined for each TLD. TLD locations are listed in Table 2.1-B. The TLDs were placed as indicated below.

• An inner ring of 24 TLDs, one in each meteorological sector in the general area of the site boundary.

• An outer ring of 20 TLDs, one in each meteorological sector at 8 kilometers or greater from the site (NCR # 01962757).

• The remaining TLDs were placed in special interest areas such as population centers, residential areas, schools, and at one control location.

A.8 ANNUAL LAND USE CENSUS An Annual Land Use Census was conducted to identify within a distance of 5.0 miles (8 kilometers) from the plant, the nearest location from the site boundary in each of the sixteen meteorological sectors, the following:

The Nearest Residence The Nearest Garden greater than 50 square meters or 500 square feet, producing broadleaf vegetation The Nearest Milk-giving Animal (cow, goat, etc.)

Appendix A - Page 6

The Annual Land Use Census must also identify (for elevated releases) within the three-mile (4.8 kilometer) radius of the plant (a garden census) for each of the 16 meteorological sectors for the following:

The location of all milk animals The location of all gardens of greater than 500 square feet (or 50 square meters), producing broadleaf vegetation.

The census was conducted during the growing season from June 27 through 29, 2016. Results are shown in Tables 3.8-A and 3.8-B. No changes were made to the sampling procedures during 2016 as a result of the 2016 BSEP census.

Appendix A - Page 7

APPENDIX B RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

OF RESULTS 2016 Appendix B - Page 1

BRUNSWICK STEAM ELECTRIC PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

Brunswick Steam Electric Plant Docket Numbers: 50-324 and 325 Brunswick County, North Carolina Calendar Year: 2016 Location w/Highest Annual Mean(2)

Medium or Pathway Type and Lower Limit All Indicator Control Locations No. of Sampled or Measured Total No. of of Detection Locations Name, Distance, Mean(2)(3) Mean(2)(3) Non-Routine (Unit of Measurement) Measurements (LLD)(1) Mean(2)(3) and Direction Range(2) Range(2) Report Performed Range(2) Meas.

Loc. # 203 Loc. # 204 & 206 Air Particulate Gross Beta See Table 2.2-C 1.66E-2 (260/260) Southport Substation 1.82E-2 (52/52) 1.63E-2 (104/104) 0 (pCi/m3) 364(4) 5.52E 4.12E-2 2.0 miles SSW 9.91E 4.12E-2 9.25E 3.52E-2 Gamma(5) See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 28 Air Radioiodine I-131 See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/m3) 364(4)

Broadleaf Vegetation Gamma(4)(5) See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 60 Fish and Invertebrates Gamma(5) See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 15 Loc. # 501 Sediments -- Shoreline Gamma(5) See Table 2.2-C 1.32E+2 (1/4) Nancys Creek 1.32E+2 (1/2) No Control(9) 0 (pCi/kg, dry) 4 Single Value adjacent to WP-55 Single Value Cs-137 near SDSP Hard-to-detects ----- All less than LLD ----- ----- No Control 0 (Fe-55, Ni-63, Sr-89/90) 7 Appendix B - Page 2

BRUNSWICK STEAM ELECTRIC PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

(cont.)

Brunswick Steam Electric Plant Docket Numbers: 50-324 and 325 Brunswick County, North Carolina Calendar Year: 2016 Location w/Highest Annual Mean(2)

Medium or Pathway Type and Lower Limit All Indicator Control Locations No. of Sampled or Measured Total No. of of Detection Locations Name, Distance, Mean(2)(3) Mean(2)(3) Non-Routine (Unit of Measurement) Measurements (LLD)(1) Mean(2)(3) and Direction Range(2) Range(2) Report Performed Range(2) Meas.

Surface Water Gamma(5) See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/l) 240 Tritium 3,000(7) 1.15E+3 (29/636) Loc. # 494 3.18E+3 (1/52) All less than LLD 0 700 1.97E+2 - 6.41E+3 Nancys Creek Single Value Marsh Area WP-106 Ground Water Gamma(5) See Table 2.2-C All less than LLD ----- ----- No Control 0 (pCi/l) 20 Tritium 3,000(7) All less than LLD ----- ----- No Control 0 40 Loc. #81 Direct Radiation (TLD) TLD Readout ----- 9.95E+0 (174/174) Loc. # 39 1.47E+1 (4/4) 1.03E+1 (4/4) 0 (mR per std. quarter)(6) 178(4) 3.14E+0 - 1.76E+1 5.3 miles SW 1.22E+1 - 1.76E+1 8.49E+0 - 1.14E+1 Direct Radiation ISFSI TLD Readout ----- 2.32E+1 (16/16) Loc. # 85 2.47E+1 (4/4) No Control 0 (TLD - ISFSI) 16 1.65E+1 - 2.88E+1 SE Corner of ISFSI 2.06E+1 - 2.88E+1 0.09 miles ENE (mR per std. quarter)(6)

Appendix B - Page 3

Footnotes to Appendix B

1. The Lower Limit of Detection (LLD) is the smallest concentration of radioactive material in a sample that will yield a net count above system background which will be detected with 95 percent probability and with only 5 percent probability of falsely concluding that a blank observation represents a "real" signal. Due to counting statistics and varying volumes, occasionally lower LLDs are achieved. Refer to Section 2.3.2 for an explanation of how LLD values were derived.

2. Mean and range are based on detectable measurements only.

3. The fractions of all samples with detectable activities at specific locations are indicated in parentheses.

4. Missing samples or surveillances are discussed in Appendix C or Appendix D.

5. Summary of gamma analysis results in this report does not include the following naturally occurring isotopes since most environmental samples contained some or all of these: Be-7, K-40, Tl-208, Pb-212, Bi-214, Pb-214, and Ra-226.

6. TLD exposure is reported in milliroentgen (mR) per standard quarter (91 days).

7. Tritium Lower Limit of Detection (LLD) is approximately 2.50E+2 pCi/L for samples that typically demonstrate activity less than the LLD. The LLD was lowered in order to maintain comparable LLD values with the NC Department of Health and Human Services (NCDHHS), Division of Public Health -

State Lab of Public Health.

8. The tritium reporting limit for Fish per General Engineering Laboratories (GEL) is 4.0E+3 pCi/kilogram.

9. Shoreline Sediment background samples were collected in 2016, but are not an ODCM sample; therefore, are not recorded in the data (gamma and Hard-to-detects [Fe-55, Ni-63, Sr-89, and Sr-90]).

Appendix B - Page 4

APPENDIX C SAMPLING DEVIATIONS UNAVAILABLE ANALYSES Appendix C - Page 1

APPENDIX C BRUNSWICK NUCLEAR PLANT SAMPLING DEVIATIONS & UNAVAILABLE ANALYSES DEVIATIONS & UNAVAILABLE REASON CODES BF Blown Fuse OT Other SM Motor / Rotor Seized CN Construction PI Power Interrupt SU Seasonal Unavailability FZ Sample Frozen PM Preventative Maintenance TF Torn Filter IV Insufficient Volume PO Power Outage VN Vandalism IW Inclement Weather PS Power out of service / Undergoing Repair LC Line Clog to Sampler SL Sample Loss / Lost due to Lab Accident C.1 SAMPLING DEVIATIONS Air Particulate and Air Radioiodines Any REMP weekly air samples (Air Cartridge or Air Radioiodine) that experience any downtime during a surveillance period will be reported as a Deviation and will be classified as a Sampling Deviation. However, the sample will be counted and the data reported, whereas a Deviation with no available sample will be classified as an Unavailable Analyses and will not have any data reported. The air samplers operated for a total of 99.81% availability in 2016.

Scheduled Description & Corrective Location Collection Dates Code Action to Prevent Recurrence Action 201 6/14/16 - 6/21/16 PI 14.5 hrs. downtime due to GFI outlet tripped during NCR # 02038923 thunderstorms in the area.

201 7/05/16 - 7/12/16 PI 5.5 hrs. downtime due to power interruption caused by NCR # 02043982 thunderstorms in the area.

201 7/05/16 - 7/12/16 PI 6.4 hrs. downtime due to power interruption caused by NCR # 02044447 thunderstorms in the area.

201 7/19/16 - 7/26/16 PI 9.0 hrs. downtime due to power interruption caused by NCR # 02047077 thunderstorms in the area.

201 8/02/16 - 8/09/16 PI 5.6 hrs. downtime due to power interruption caused by NCR # 02050714 thunderstorms in the area.

201 8/16/16 - 8/23/16 PI 7.3 hrs. downtime due to power interruption caused by NCR # 02055346 thunderstorms in the area.

200 8/30/16 - 9/06/16 PI 4.75 hrs. downtime due to power interruption caused by NCR # 02058982 Tropical Storm Hermine on 9/3/16.

202 8/30/16 - 9/06/16 PI 4.75 hrs. downtime due to power interruption caused by NCR # 02058982 Tropical Storm Hermine on 9/3/16.

203 8/30/16 - 9/06/16 PI 4.75 hrs. downtime due to power interruption caused by NCR # 02059029 Tropical Storm Hermine on 9/3/16.

205 8/30/16 - 9/06/16 PI 4.75 hrs. downtime due to power interruption caused by NCR # 02058982 Tropical Storm Hermine on 9/3/16.

200 9/20/16 - 9/27/16 PI 4.8 hrs. downtime due to power interruptions due toa loss of NCR # 02064227 Delco East that supplies Southport Feeder.

201 9/20/16 - 9/27/16 PI 4.8 hrs. downtime due to power interruptions due to a loss of NCR # 02064227 Delco East that supplies Southport Feeder.

Appendix C - Page 2

Scheduled Description & Corrective Location Collection Dates Code Action to Prevent Recurrence Action 202 9/20/16 - 9/27/16 PI 4.8 hrs. downtime due to power interruptions due to a loss of NCR # 02064227 Delco East that supplies Southport Feeder.

203 9/20/16 - 9/27/16 PI 4.8 hrs. downtime due to power interruptions due to a loss of NCR # 02064227 Delco East that supplies Southport Feeder.

205 9/20/16 - 9/27/16 PI 4.8 hrs. downtime due to power interruptions due to a loss of NCR # 02064227 Delco East that supplies Southport Feeder.

206 11/08/16 - 11/15/16 PI 1.28 hrs. downtime due to power interruption - cause NCR # 02076913 unknown.

203 11/29/16 - 12/06/16 PI 22.8 hrs. downtime due to power interruption due to a trip of NCR # 02083449 the GFI outlet, cause of the outlet trip is unknown.

C.2 UNAVAILABLE ANALYSES TLD Scheduled Description & Corrective Location Collection Dates Code Action to Prevent Recurrence Action 4/6/16 - 7/7/16 Power Pole that the TLD was located on was replaced with a 28 nd OT new pole. The area was searched, but the TLD could not be NCR # 02043754 (2 Qtr. 2016) located.

4 10/13/16 - 1/4/17 Power Pole that the TLD was located on was replaced with a OT new pole. The area was searched, but the TLD could not be NCR # 02089474 (4th Qtr. 2016) located.

Appendix C - Page 3

APPENDIX D ANALYTICAL DEVIATIONS Appendix D - Page 1

APPENDIX D BRUNSWICK NUCLEAR PLANT ANALYTICAL DEVIATIONS While BSEP was performing data review of September 2016 ground water analyses, it was identified that 10 ground water samples (see table below) collected per BSEP ODCM Table 7.3.15-1 were not analyzed by BSEP in the required timeframe stated in the BSEP ODCM (NCR # 02076456). BSEP individuals had encountered delays with the analyses of the BSEP ground water samples. It was determined that the previous ground water samples had been analyzed in June of 2016 and these samples were not analyzed until mid-October of 2016. The analysis date exceeded the 92 day requirement and fell outside of the +25%

tolerance allowed by the BSEP ODCM. A review of other BSEP samples from the time of the analysis delays showed that BSEP ground water and waypoint samples required by the BSEP ODCM from September through mid-October of 2016 were not analyzed in accordance with the requirements of the BSEP ODCM. This is not a reportable event per verification with BSEP Regulatory Affairs.

Sample ODCM - Sample Point Description Collection Analysis Manager ID Date Date 427899 404 - Monitoring Well ESS-1B 9/15/16 10/25/16 427928 407 - Monitoring Well ESS-13B 9/19/16 10/26/16 427606 409 - Monitoring Well ESS-17A 9/14/16 10/20/16 427606 410 - Monitoring Well ESS-17B 9/14/16 10/20/16 427929 418 - Monitoring Well ESS-21B 9/13/16 10/26/16 427608 423 - Monitoring Well ESS-24A 9/23/16 10/20/16 427609 424 - Monitoring Well ESS-24B 9/23/16 10/20/16 428068 426 - Monitoring Well ESS-25B 9/28/16 10/28/16 427611 429 - Monitoring Well ESS-27A 9/14/16 10/20/16 427930 612 - Monitoring Well ESS MWPA-118B 9/19/16 10/26/16 This occurrence was due to inadequate training and oversight of the BSEP individual(s) that were handling the collection and analysis of these BSEP ODCM samples. In order to prevent reoccurrence, a discussion of not just BSEP ODCM sample frequency requirements, but analysis frequencies were added to the BSEP count room qualification in order to heighten awareness of BSEP ODCM sampling and analysis frequency requirements.

This sampling program is implemented to fulfill sampling requirements described in the Brunswick Steam Electric Plant (BNP) OFF-SITE DOSE CALCULATION MANUAL (ODCM) Section 4.0 (Radiological Environmental Monitoring Program); Sections 7.3, 7.3.15 (ODCM Specifications for Radiological Environmental Monitoring Program), and Table 7.3.15-1. Sampling program deviations such as these are documented in the BSEP Appendix D - Page 2

Annual Radiological Environmental Operating Report (AREOR) each year in Appendix D - Analytical Deviations (NCR # 02076456).

Appendix D - Page 3

APPENDIX E RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM RESULTS 2016 This appendix includes sample analysis report summaries and supportive data generated from each sample medium for 2016.

Appendix E - Page 1

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 398905 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.66E-02 4.46E-03 5.97E-03 Sample ID: 399220 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.19E-02 3.85E-03 5.24E-03 Sample ID: 399969 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.23E-02 4.82E-03 6.00E-03 Sample ID: 400322 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.18E-02 4.47E-03 6.52E-03 Sample ID: 400952 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.18E-02 4.64E-03 5.66E-03 Sample ID: 401315 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.45E-02 4.20E-03 5.66E-03 Sample ID: 401768 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.74E-02 4.19E-03 5.20E-03 Sample ID: 402279 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.34E-02 4.01E-03 5.38E-03 Sample ID: 403007 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.44E-02 4.17E-03 5.59E-03 Sample ID: 404485 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.07E-02 4.04E-03 5.84E-03 Sample ID: 405371 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.80E-02 4.28E-03 5.35E-03 Sample ID: 405988 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.92E-02 4.46E-03 5.60E-03 Sample ID: 406320 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.45E-02 4.02E-03 5.26E-03 Sample ID: 406327 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.63E-03 0.00E+00 1.63E-03 Cs-137 <6.34E-04 0.00E+00 6.34E-04 Be-7 1.57E-01 3.57E-02 3.15E-02 K-40 <2.52E-02 0.00E+00 2.52E-02 Sample ID: 407516 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.24E-02 3.90E-03 5.31E-03 Sample ID: 408096 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.38E-02 4.01E-03 5.37E-03 Sample ID: 409409 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.86E-02 4.48E-03 5.74E-03 Sample ID: 409744 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.39E-03 5.77E-03 Sample ID: 410896 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.54E-02 4.15E-03 5.47E-03 Sample ID: 411396 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.64E-02 4.28E-03 5.64E-03 Sample ID: 411720 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.86E-02 4.58E-03 6.04E-03 Sample ID: 412183 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.35E-02 3.92E-03 5.20E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 2 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 412699 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.68E-02 4.26E-03 5.50E-03 Sample ID: 413302 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.23E-02 3.78E-03 5.12E-03 Sample ID: 413849 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.70E-02 4.15E-03 5.28E-03 Sample ID: 414990 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.55E-02 4.13E-03 5.41E-03 Sample ID: 415354 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.19E-02 4.27E-03 6.19E-03 Sample ID: 415361 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.33E-03 0.00E+00 1.33E-03 Cs-137 <1.05E-03 0.00E+00 1.05E-03 Be-7 1.88E-01 3.19E-02 2.65E-03 K-40 <2.53E-02 0.00E+00 2.53E-02 Sample ID: 416354 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 8.16E-03 3.89E-03 5.90E-03 Sample ID: 416978 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.36E-02 4.11E-03 5.64E-03 Sample ID: 417372 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.13E-02 3.83E-03 5.35E-03 Sample ID: 417763 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.69E-02 4.34E-03 5.63E-03 Sample ID: 418227 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.68E-02 4.34E-03 5.75E-03 Sample ID: 418956 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.39E-02 4.22E-03 5.83E-03 Sample ID: 419457 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 8.88E-03 3.45E-03 4.93E-03 Sample ID: 419984 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.11E-02 4.13E-03 6.01E-03 Sample ID: 420538 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.40E-02 4.24E-03 5.89E-03 Sample ID: 421375 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 5.52E-03 3.66E-03 5.80E-03 Sample ID: 422533 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.22E-02 4.53E-03 5.40E-03 Sample ID: 423275 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.07E-02 3.99E-03 5.76E-03 Sample ID: 424388 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 6.94E-03 3.89E-03 6.04E-03 Sample ID: 424395 Sample Dates: 6/28/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <2.60E-04 0.00E+00 2.60E-04 Cs-137 <1.14E-03 0.00E+00 1.14E-03 Be-7 1.17E-01 2.77E-02 2.56E-02 K-40 <2.55E-02 0.00E+00 2.55E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 3 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 425387 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.03E-02 4.39E-03 5.34E-03 Sample ID: 425950 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.09E-02 4.10E-03 5.96E-03 Sample ID: 426322 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.60E-02 4.40E-03 5.88E-03 Sample ID: 427014 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.25E-02 4.36E-03 6.31E-03 Sample ID: 427673 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.13E-02 4.57E-03 5.60E-03 Sample ID: 428168 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.82E-02 4.54E-03 5.95E-03 Sample ID: 428850 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.86E-02 4.41E-03 5.57E-03 Sample ID: 429360 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 3.48E-02 5.52E-03 6.10E-03 Sample ID: 429911 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.89E-02 4.66E-03 6.07E-03 Sample ID: 430532 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.88E-02 4.40E-03 5.49E-03 Sample ID: 431020 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.39E-02 4.35E-03 6.05E-03 Sample ID: 431427 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.50E-02 4.79E-03 6.58E-03 Sample ID: 431758 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.68E-02 5.66E-03 7.00E-03 Sample ID: 431765 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <9.22E-04 0.00E+00 9.22E-04 Cs-137 <1.10E-03 0.00E+00 1.10E-03 Be-7 1.15E-01 2.64E-02 1.79E-02 K-40 <2.97E-02 0.00E+00 2.97E-02 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 398906 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.53E-02 4.33E-03 5.88E-03 Sample ID: 399221 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.11E-02 3.74E-03 5.15E-03 Sample ID: 399970 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.96E-02 4.61E-03 5.89E-03 Sample ID: 400323 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.20E-02 4.41E-03 6.41E-03 Sample ID: 400953 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.89E-02 4.46E-03 5.66E-03 Sample ID: 401316 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.75E-02 4.37E-03 5.63E-03 Sample ID: 401769 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.88E-02 4.28E-03 5.19E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 4 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 402280 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.41E-02 4.04E-03 5.35E-03 Sample ID: 403008 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.58E-02 4.23E-03 5.53E-03 Sample ID: 404486 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.91E-03 4.06E-03 5.97E-03 Sample ID: 405372 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.55E-02 3.94E-03 5.05E-03 Sample ID: 405989 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.78E-02 4.26E-03 5.40E-03 Sample ID: 406321 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.57E-02 4.01E-03 5.12E-03 Sample ID: 406328 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <9.43E-04 0.00E+00 9.43E-04 Cs-137 <7.47E-04 0.00E+00 7.47E-04 Be-7 1.45E-01 3.03E-02 1.87E-02 K-40 1.54E-02 9.36E-03 3.78E-03 Sample ID: 407517 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.72E-02 4.10E-03 5.14E-03 Sample ID: 408097 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.60E-02 4.09E-03 5.26E-03 Sample ID: 409410 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.30E-03 5.58E-03 Sample ID: 409745 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.21E-02 4.54E-03 5.55E-03 Sample ID: 410897 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.63E-02 4.10E-03 5.29E-03 Sample ID: 411397 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.52E-02 4.09E-03 5.42E-03 Sample ID: 411721 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.68E-02 4.35E-03 5.80E-03 Sample ID: 412184 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.33E-02 3.76E-03 4.95E-03 Sample ID: 412700 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.41E-02 3.96E-03 5.27E-03 Sample ID: 413303 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.05E-02 3.54E-03 4.90E-03 Sample ID: 413850 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.94E-02 4.15E-03 5.03E-03 Sample ID: 414991 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.73E-02 4.41E-03 5.71E-03 Sample ID: 415355 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.47E-02 4.36E-03 6.05E-03 Sample ID: 415362 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <8.50E-04 0.00E+00 8.50E-04 Cs-137 <6.72E-04 0.00E+00 6.72E-04 Be-7 1.71E-01 3.22E-02 2.27E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 5 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 415362 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA K-40 7.84E-03 1.17E-02 1.96E-02 Sample ID: 416355 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.20E-02 4.11E-03 5.86E-03 Sample ID: 416979 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.37E-02 4.31E-03 5.97E-03 Sample ID: 417373 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.11E-02 3.77E-03 5.27E-03 Sample ID: 417764 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.96E-02 4.58E-03 5.75E-03 Sample ID: 418228 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.48E-02 4.18E-03 5.68E-03 Sample ID: 418957 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.10E-02 4.12E-03 5.97E-03 Sample ID: 419458 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.01E-02 3.52E-03 4.89E-03 Sample ID: 419985 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 8.84E-03 4.10E-03 6.21E-03 Sample ID: 420539 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.38E-02 4.19E-03 5.81E-03 Sample ID: 421376 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.06E-03 3.78E-03 5.57E-03 Sample ID: 422534 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.54E-02 4.63E-03 5.30E-03 Sample ID: 423276 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.28E-03 3.85E-03 5.66E-03 Sample ID: 424389 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.01E-02 3.97E-03 5.80E-03 Sample ID: 424396 Sample Dates: 6/28/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.15E-03 0.00E+00 1.15E-03 Cs-137 <1.20E-03 0.00E+00 1.20E-03 Be-7 1.06E-01 2.55E-02 2.19E-02 K-40 <2.55E-02 0.00E+00 2.55E-02 Sample ID: 425388 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.88E-02 4.25E-03 5.26E-03 Sample ID: 425951 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Beta 5.77E-03 3.69E-03 5.85E-03 Sample ID: 426323 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.77E-02 4.40E-03 5.72E-03 Sample ID: 427015 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.29E-02 4.31E-03 6.18E-03 Sample ID: 427674 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.36E-02 4.63E-03 5.49E-03 Sample ID: 428169 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.40E-03 5.81E-03 Sample ID: 428851 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.65E-02 4.22E-03 5.44E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 6 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 429361 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 3.49E-02 5.43E-03 5.96E-03 Sample ID: 429912 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.10E-02 4.73E-03 5.98E-03 Sample ID: 430533 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.74E-02 4.27E-03 5.43E-03 Sample ID: 431021 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.27E-02 4.24E-03 5.98E-03 Sample ID: 431428 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.58E-02 4.79E-03 6.48E-03 Sample ID: 431759 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.71E-02 5.63E-03 6.93E-03 Sample ID: 431766 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.05E-03 0.00E+00 1.05E-03 Cs-137 <1.08E-03 0.00E+00 1.08E-03 Be-7 1.15E-01 2.67E-02 1.97E-02 K-40 <2.84E-02 0.00E+00 2.84E-02 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 398907 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.41E-02 4.23E-03 5.82E-03 Sample ID: 399222 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.19E-02 3.78E-03 5.12E-03 Sample ID: 399971 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.17E-02 4.73E-03 5.90E-03 Sample ID: 400324 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.43E-02 4.55E-03 6.42E-03 Sample ID: 400954 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.67E-02 4.90E-03 5.66E-03 Sample ID: 401317 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.40E-02 4.17E-03 5.65E-03 Sample ID: 401770 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.95E-02 4.32E-03 5.20E-03 Sample ID: 402281 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.66E-02 4.22E-03 5.38E-03 Sample ID: 403009 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.57E-02 4.26E-03 5.59E-03 Sample ID: 404487 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.85E-03 3.99E-03 5.84E-03 Sample ID: 405373 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.53E-02 4.09E-03 5.33E-03 Sample ID: 405990 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.10E-02 4.54E-03 5.57E-03 Sample ID: 406322 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.56E-02 4.07E-03 5.23E-03 Sample ID: 406329 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.30E-03 0.00E+00 1.30E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 7 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 406329 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <9.20E-04 0.00E+00 9.20E-04 Be-7 1.55E-01 3.64E-02 3.47E-02 K-40 <3.01E-02 0.00E+00 3.01E-02 Sample ID: 407518 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.18E-03 5.29E-03 Sample ID: 408098 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.28E-02 4.56E-03 5.38E-03 Sample ID: 409411 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.63E-02 4.33E-03 5.73E-03 Sample ID: 409746 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.80E-02 4.42E-03 5.73E-03 Sample ID: 410898 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.34E-02 4.60E-03 5.43E-03 Sample ID: 411398 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.95E-02 4.46E-03 5.60E-03 Sample ID: 411722 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.78E-02 4.50E-03 5.97E-03 Sample ID: 412185 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.20E-02 3.81E-03 5.18E-03 Sample ID: 412701 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.33E-02 4.02E-03 5.45E-03 Sample ID: 413304 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.38E-02 3.86E-03 5.07E-03 Sample ID: 413851 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.92E-02 4.25E-03 5.22E-03 Sample ID: 414992 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.68E-02 4.19E-03 5.39E-03 Sample ID: 415356 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.75E-02 4.57E-03 6.13E-03 Sample ID: 415363 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <8.74E-04 0.00E+00 8.74E-04 Cs-137 <8.02E-04 0.00E+00 8.02E-04 Be-7 1.54E-01 2.96E-02 1.65E-02 K-40 <1.99E-02 0.00E+00 1.99E-02 Sample ID: 416356 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.22E-02 4.11E-03 5.84E-03 Sample ID: 416980 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.28E-02 4.03E-03 5.59E-03 Sample ID: 417374 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.30E-02 3.91E-03 5.28E-03 Sample ID: 417765 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.79E-02 4.27E-03 5.42E-03 Sample ID: 418229 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.41E-02 4.16E-03 5.72E-03 Sample ID: 418958 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.31E-02 4.15E-03 5.79E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 8 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 419459 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.13E-02 3.64E-03 4.95E-03 Sample ID: 419986 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 8.63E-03 3.94E-03 5.95E-03 Sample ID: 420540 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.79E-02 4.44E-03 5.84E-03 Sample ID: 421377 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.02E-02 3.98E-03 5.76E-03 Sample ID: 422535 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.12E-02 4.43E-03 5.34E-03 Sample ID: 423277 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.51E-03 3.89E-03 5.71E-03 Sample ID: 424390 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 8.78E-03 3.99E-03 5.98E-03 Sample ID: 424397 Sample Dates: 6/28/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.24E-03 0.00E+00 1.24E-03 Cs-137 <6.01E-04 0.00E+00 6.01E-04 Be-7 1.11E-01 2.74E-02 2.43E-02 K-40 2.18E-02 1.29E-02 1.41E-02 Sample ID: 425389 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.86E-02 4.26E-03 5.28E-03 Sample ID: 425952 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.20E-03 3.98E-03 5.94E-03 Sample ID: 426324 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.95E-02 4.57E-03 5.83E-03 Sample ID: 427016 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.43E-02 4.45E-03 6.26E-03 Sample ID: 427675 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.16E-02 4.55E-03 5.54E-03 Sample ID: 428170 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.95E-02 4.60E-03 5.92E-03 Sample ID: 428852 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.76E-02 4.34E-03 5.55E-03 Sample ID: 429362 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 3.74E-02 5.62E-03 6.07E-03 Sample ID: 429913 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.49E-02 4.99E-03 6.05E-03 Sample ID: 430534 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.05E-02 4.50E-03 5.48E-03 Sample ID: 431022 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.61E-02 4.49E-03 6.04E-03 Sample ID: 431429 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.23E-02 5.28E-03 6.60E-03 Sample ID: 431760 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.71E-02 5.70E-03 7.03E-03 Sample ID: 431767 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <9.65E-04 0.00E+00 9.65E-04 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 9 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 431767 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.15E-03 0.00E+00 1.15E-03 Be-7 1.23E-01 3.14E-02 3.10E-02 K-40 1.76E-02 1.46E-02 2.10E-02 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 398908 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.52E-02 4.35E-03 5.92E-03 Sample ID: 399223 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.40E-02 3.97E-03 5.20E-03 Sample ID: 399972 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.51E-02 4.95E-03 5.94E-03 Sample ID: 400325 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.14E-02 4.40E-03 6.47E-03 Sample ID: 400955 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.18E-02 4.71E-03 5.78E-03 Sample ID: 401318 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.61E-02 4.41E-03 5.86E-03 Sample ID: 401771 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.04E-02 4.63E-03 5.63E-03 Sample ID: 402282 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.53E-02 4.09E-03 5.31E-03 Sample ID: 403010 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.76E-02 4.34E-03 5.53E-03 Sample ID: 404488 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.72E-02 4.48E-03 5.90E-03 Sample ID: 405374 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.59E-02 4.03E-03 5.15E-03 Sample ID: 405991 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.59E-02 4.21E-03 5.50E-03 Sample ID: 406323 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.70E-02 4.22E-03 5.35E-03 Sample ID: 406330 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.31E-03 0.00E+00 1.31E-03 Cs-137 <1.11E-03 0.00E+00 1.11E-03 Be-7 1.63E-01 3.26E-02 2.38E-02 K-40 <2.34E-02 0.00E+00 2.34E-02 Sample ID: 407519 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.29E-02 4.58E-03 5.39E-03 Sample ID: 408099 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.92E-02 4.50E-03 5.64E-03 Sample ID: 409412 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.01E-02 4.59E-03 5.78E-03 Sample ID: 409747 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.08E-02 4.49E-03 5.58E-03 Sample ID: 410899 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.82E-02 4.20E-03 5.26E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 10 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 411399 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.86E-02 4.32E-03 5.47E-03 Sample ID: 411723 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.69E-02 4.37E-03 5.82E-03 Sample ID: 412186 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.58E-02 4.00E-03 5.08E-03 Sample ID: 412702 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.51E-02 4.04E-03 5.31E-03 Sample ID: 413305 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.35E-02 3.75E-03 4.92E-03 Sample ID: 413852 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.03E-02 4.23E-03 5.08E-03 Sample ID: 414993 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.89E-02 4.21E-03 5.21E-03 Sample ID: 415357 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.21E-02 4.16E-03 5.97E-03 Sample ID: 415364 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <9.51E-04 0.00E+00 9.51E-04 Cs-137 <1.06E-03 0.00E+00 1.06E-03 Be-7 1.78E-01 3.47E-02 2.43E-02 K-40 2.18E-02 1.27E-02 1.33E-02 Sample ID: 416357 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.12E-02 3.95E-03 5.66E-03 Sample ID: 416981 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.34E-02 4.31E-03 6.00E-03 Sample ID: 417375 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.19E-02 3.79E-03 5.20E-03 Sample ID: 417766 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.96E-02 4.44E-03 5.53E-03 Sample ID: 418230 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.70E-02 4.38E-03 5.79E-03 Sample ID: 418959 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.08E-02 4.05E-03 5.88E-03 Sample ID: 419460 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.31E-02 3.79E-03 4.99E-03 Sample ID: 419987 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.91E-03 4.09E-03 6.08E-03 Sample ID: 420541 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.65E-02 4.46E-03 5.99E-03 Sample ID: 421378 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.07E-02 4.09E-03 5.90E-03 Sample ID: 422536 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.92E-02 4.93E-03 5.44E-03 Sample ID: 423278 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.20E-02 4.13E-03 5.84E-03 Sample ID: 424391 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.05E-02 4.20E-03 6.16E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 11 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 424398 Sample Dates: 6/28/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <9.31E-04 0.00E+00 9.31E-04 Cs-137 <5.85E-04 0.00E+00 5.85E-04 Be-7 1.29E-01 2.87E-02 2.17E-02 K-40 <2.19E-02 0.00E+00 2.19E-02 Sample ID: 425390 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.43E-02 4.72E-03 5.47E-03 Sample ID: 425953 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.07E-02 4.25E-03 6.25E-03 Sample ID: 426325 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.66E-02 4.52E-03 6.04E-03 Sample ID: 427017 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.31E-02 4.54E-03 6.55E-03 Sample ID: 427676 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.36E-02 4.99E-03 6.09E-03 Sample ID: 428171 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.21E-02 4.75E-03 5.92E-03 Sample ID: 428853 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.37E-02 4.70E-03 5.55E-03 Sample ID: 429363 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 3.95E-02 5.79E-03 6.18E-03 Sample ID: 429914 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.34E-02 4.97E-03 6.16E-03 Sample ID: 430535 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.54E-02 5.34E-03 6.42E-03 Sample ID: 431023 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.59E-02 4.53E-03 6.13E-03 Sample ID: 431430 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.39E-02 5.51E-03 6.84E-03 Sample ID: 431761 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 4.12E-02 6.57E-03 7.27E-03 Sample ID: 431768 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.21E-03 0.00E+00 1.21E-03 Cs-137 <9.51E-04 0.00E+00 9.51E-04 Be-7 1.61E-01 3.35E-02 2.55E-02 K-40 <2.78E-02 0.00E+00 2.78E-02 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 398909 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.22E-02 4.27E-03 6.10E-03 Sample ID: 399224 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.49E-02 4.10E-03 5.31E-03 Sample ID: 399973 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.37E-02 4.96E-03 6.10E-03 Sample ID: 400326 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.11E-02 4.46E-03 6.61E-03 Sample ID: 400956 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.84E-02 4.57E-03 5.90E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 12 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 401319 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.63E-02 4.31E-03 5.65E-03 Sample ID: 401772 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.83E-02 4.24E-03 5.19E-03 Sample ID: 402283 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.63E-02 4.18E-03 5.35E-03 Sample ID: 403011 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.31E-02 4.07E-03 5.55E-03 Sample ID: 404489 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.43E-03 5.82E-03 Sample ID: 405375 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.78E-02 4.26E-03 5.34E-03 Sample ID: 405992 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.70E-02 4.32E-03 5.60E-03 Sample ID: 406324 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.19E-03 5.27E-03 Sample ID: 406331 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.47E-03 0.00E+00 1.47E-03 Cs-137 <1.01E-03 0.00E+00 1.01E-03 Be-7 1.54E-01 3.15E-02 2.35E-02 K-40 <2.62E-02 0.00E+00 2.62E-02 Sample ID: 407520 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.73E-02 4.20E-03 5.30E-03 Sample ID: 408100 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.42E-02 4.04E-03 5.38E-03 Sample ID: 409413 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.79E-02 4.44E-03 5.73E-03 Sample ID: 409748 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.51E-02 4.25E-03 5.74E-03 Sample ID: 410900 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.36E-02 4.08E-03 5.55E-03 Sample ID: 411400 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.48E-02 4.23E-03 5.72E-03 Sample ID: 411724 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.76E-02 4.57E-03 6.09E-03 Sample ID: 412187 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.32E-02 3.94E-03 5.27E-03 Sample ID: 412703 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.00E-02 4.47E-03 5.53E-03 Sample ID: 413306 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.25E-02 3.87E-03 5.23E-03 Sample ID: 413853 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.00E-02 4.41E-03 5.41E-03 Sample ID: 414994 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.47E-02 4.16E-03 5.54E-03 Sample ID: 415358 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.67E-02 4.57E-03 6.21E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 13 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 415365 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.32E-03 0.00E+00 1.32E-03 Cs-137 <8.62E-04 0.00E+00 8.62E-04 Be-7 1.70E-01 3.33E-02 2.06E-02 K-40 <2.53E-02 0.00E+00 2.53E-02 Sample ID: 416358 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.31E-02 4.31E-03 6.09E-03 Sample ID: 416982 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.42E-02 4.22E-03 5.76E-03 Sample ID: 417376 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.53E-02 4.15E-03 5.44E-03 Sample ID: 417767 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.14E-02 4.60E-03 5.62E-03 Sample ID: 418231 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.52E-02 4.34E-03 5.91E-03 Sample ID: 418960 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.10E-02 4.13E-03 5.99E-03 Sample ID: 419461 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.18E-02 3.75E-03 5.07E-03 Sample ID: 419988 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.28E-02 4.32E-03 6.16E-03 Sample ID: 420542 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.54E-02 4.44E-03 6.07E-03 Sample ID: 421379 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.25E-03 3.91E-03 5.78E-03 Sample ID: 422537 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.28E-02 4.66E-03 5.58E-03 Sample ID: 423279 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.46E-03 5.86E-03 Sample ID: 424392 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.13E-02 4.16E-03 6.01E-03 Sample ID: 424399 Sample Dates: 6/28/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <7.48E-04 0.00E+00 7.48E-04 Cs-137 <5.93E-04 0.00E+00 5.93E-04 Be-7 1.29E-01 2.86E-02 2.03E-02 K-40 <2.44E-02 0.00E+00 2.44E-02 Sample ID: 425391 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.88E-02 4.40E-03 5.50E-03 Sample ID: 425954 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.27E-02 4.26E-03 6.04E-03 Sample ID: 426326 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.75E-02 4.52E-03 5.93E-03 Sample ID: 427018 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.30E-02 4.44E-03 6.39E-03 Sample ID: 427677 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.69E-02 4.37E-03 5.71E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 14 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 428172 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.14E-02 4.79E-03 6.04E-03 Sample ID: 428854 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.77E-02 4.42E-03 5.68E-03 Sample ID: 429364 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 3.52E-02 5.58E-03 6.16E-03 Sample ID: 429915 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.13E-02 4.85E-03 6.16E-03 Sample ID: 430536 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.11E-02 4.57E-03 5.56E-03 Sample ID: 431024 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.22E-02 4.29E-03 6.13E-03 Sample ID: 431431 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.80E-02 5.05E-03 6.66E-03 Sample ID: 431762 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.37E-02 5.54E-03 7.09E-03 Sample ID: 431769 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <7.28E-04 0.00E+00 7.28E-04 Cs-137 <5.73E-04 0.00E+00 5.73E-04 Be-7 1.12E-01 2.56E-02 1.46E-02 K-40 <2.69E-02 0.00E+00 2.69E-02 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 398910 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.11E-02 4.10E-03 5.92E-03 Sample ID: 399225 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.35E-02 3.95E-03 5.22E-03 Sample ID: 399974 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.77E-02 4.53E-03 5.94E-03 Sample ID: 400327 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 8.96E-03 4.25E-03 6.47E-03 Sample ID: 400957 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.92E-02 4.49E-03 5.67E-03 Sample ID: 401320 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.58E-02 4.30E-03 5.68E-03 Sample ID: 401773 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.96E-02 4.34E-03 5.23E-03 Sample ID: 402284 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.24E-02 4.58E-03 5.39E-03 Sample ID: 403012 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.56E-02 4.25E-03 5.60E-03 Sample ID: 404490 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 7.54E-03 3.83E-03 5.85E-03 Sample ID: 405376 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.89E-02 4.33E-03 5.35E-03 Sample ID: 405993 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.87E-02 4.44E-03 5.61E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 15 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 406325 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.32E-02 3.93E-03 5.28E-03 Sample ID: 406332 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.29E-03 0.00E+00 1.29E-03 Cs-137 <1.12E-03 0.00E+00 1.12E-03 Be-7 1.42E-01 3.03E-02 1.86E-02 K-40 <2.99E-02 0.00E+00 2.99E-02 Sample ID: 407521 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.52E-02 4.09E-03 5.34E-03 Sample ID: 408101 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.61E-02 4.18E-03 5.41E-03 Sample ID: 409414 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.55E-02 4.32E-03 5.78E-03 Sample ID: 409749 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.79E-02 4.45E-03 5.80E-03 Sample ID: 410901 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.79E-02 4.32E-03 5.51E-03 Sample ID: 411401 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.36E-02 4.13E-03 5.67E-03 Sample ID: 411725 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.77E-02 4.55E-03 6.05E-03 Sample ID: 412188 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.40E-02 3.99E-03 5.26E-03 Sample ID: 412704 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.15E-02 3.95E-03 5.56E-03 Sample ID: 413307 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.16E-02 3.77E-03 5.18E-03 Sample ID: 413854 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.84E-02 4.26E-03 5.33E-03 Sample ID: 414995 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.51E-02 4.14E-03 5.49E-03 Sample ID: 415359 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.46E-02 4.47E-03 6.25E-03 Sample ID: 415366 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.28E-03 0.00E+00 1.28E-03 Cs-137 <1.34E-03 0.00E+00 1.34E-03 Be-7 1.55E-01 3.30E-02 2.41E-02 K-40 <2.58E-02 0.00E+00 2.58E-02 Sample ID: 416359 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.40E-02 4.29E-03 5.96E-03 Sample ID: 416983 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.50E-02 4.24E-03 5.72E-03 Sample ID: 417377 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.26E-02 3.95E-03 5.41E-03 Sample ID: 417768 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.77E-02 4.34E-03 5.55E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 16 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 418232 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.85E-02 4.52E-03 5.87E-03 Sample ID: 418961 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.32E-02 4.21E-03 5.90E-03 Sample ID: 419462 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.68E-02 4.04E-03 5.01E-03 Sample ID: 419989 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.47E-02 4.41E-03 6.11E-03 Sample ID: 420543 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.57E-02 4.40E-03 5.98E-03 Sample ID: 421380 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.08E-02 4.09E-03 5.89E-03 Sample ID: 422538 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.54E-02 4.76E-03 5.49E-03 Sample ID: 423280 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 7.88E-03 3.88E-03 5.88E-03 Sample ID: 424393 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.10E-02 4.22E-03 6.13E-03 Sample ID: 424400 Sample Dates: 6/28/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.37E-03 0.00E+00 1.37E-03 Cs-137 <8.29E-04 0.00E+00 8.29E-04 Be-7 1.17E-01 2.67E-02 2.17E-02 K-40 <2.59E-02 0.00E+00 2.59E-02 Sample ID: 425392 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.13E-02 4.51E-03 5.43E-03 Sample ID: 425955 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.13E-02 4.19E-03 6.09E-03 Sample ID: 426327 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.57E-02 4.43E-03 5.98E-03 Sample ID: 427019 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.42E-02 4.52E-03 6.39E-03 Sample ID: 427678 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.97E-02 4.52E-03 5.67E-03 Sample ID: 428173 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.70E-02 4.53E-03 6.06E-03 Sample ID: 428855 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.76E-02 4.41E-03 5.66E-03 Sample ID: 429365 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 3.63E-02 5.65E-03 6.19E-03 Sample ID: 429916 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.04E-02 4.80E-03 6.16E-03 Sample ID: 430537 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.08E-02 4.43E-03 5.34E-03 Sample ID: 431025 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.52E-02 4.35E-03 5.89E-03 Sample ID: 431432 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.62E-02 4.79E-03 6.44E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 17 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 431763 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.68E-02 5.56E-03 6.82E-03 Sample ID: 431770 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.42E-03 0.00E+00 1.42E-03 Cs-137 <1.35E-03 0.00E+00 1.35E-03 Be-7 1.54E-01 3.28E-02 2.19E-02 K-40 1.48E-02 1.12E-02 1.38E-02 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 398911 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.42E-02 4.33E-03 5.98E-03 Sample ID: 399226 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.51E-02 4.06E-03 5.23E-03 Sample ID: 399975 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.39E-02 4.91E-03 5.99E-03 Sample ID: 400328 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.20E-02 4.47E-03 6.51E-03 Sample ID: 400958 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.73E-02 4.45E-03 5.79E-03 Sample ID: 401321 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.35E-02 4.18E-03 5.74E-03 Sample ID: 401774 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.49E-02 4.09E-03 5.29E-03 Sample ID: 402285 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.14E-02 3.89E-03 5.41E-03 Sample ID: 403013 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.35E-02 4.13E-03 5.62E-03 Sample ID: 404491 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.04E-02 4.04E-03 5.88E-03 Sample ID: 405377 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.71E-02 4.22E-03 5.34E-03 Sample ID: 405994 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.93E-02 4.49E-03 5.63E-03 Sample ID: 406326 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.24E-02 3.87E-03 5.25E-03 Sample ID: 406333 Sample Dates: 12/29/2015 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.17E-03 0.00E+00 1.17E-03 Cs-137 <1.12E-03 0.00E+00 1.12E-03 Be-7 1.29E-01 3.01E-02 2.41E-02 K-40 <2.25E-02 0.00E+00 2.25E-02 Sample ID: 407522 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.55E-02 4.08E-03 5.30E-03 Sample ID: 408102 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.31E-02 3.98E-03 5.40E-03 Sample ID: 409415 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.59E-02 4.34E-03 5.76E-03 Sample ID: 409750 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.60E-02 4.30E-03 5.72E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 18 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 410902 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.13E-02 4.52E-03 5.49E-03 Sample ID: 411402 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.43E-02 4.18E-03 5.67E-03 Sample ID: 411726 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.69E-02 4.50E-03 6.05E-03 Sample ID: 412189 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.08E-02 3.76E-03 5.24E-03 Sample ID: 412705 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.47E-02 4.12E-03 5.48E-03 Sample ID: 413308 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.16E-02 3.78E-03 5.18E-03 Sample ID: 413855 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.85E-02 4.30E-03 5.38E-03 Sample ID: 414996 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.40E-02 4.08E-03 5.49E-03 Sample ID: 415360 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.65E-02 4.52E-03 6.14E-03 Sample ID: 415367 Sample Dates: 3/29/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.04E-03 0.00E+00 1.04E-03 Cs-137 <1.01E-03 0.00E+00 1.01E-03 Be-7 1.71E-01 2.54E-02 1.68E-02 K-40 1.73E-02 1.28E-02 1.72E-02 Sample ID: 416360 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.14E-02 4.17E-03 6.03E-03 Sample ID: 416984 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.25E-02 4.09E-03 5.74E-03 Sample ID: 417378 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.18E-02 3.90E-03 5.40E-03 Sample ID: 417769 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.61E-02 4.27E-03 5.60E-03 Sample ID: 418233 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.34E-02 4.22E-03 5.90E-03 Sample ID: 418962 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.31E-02 4.25E-03 5.97E-03 Sample ID: 419463 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.06E-02 3.66E-03 5.07E-03 Sample ID: 419990 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Beta 9.47E-03 4.09E-03 6.13E-03 Sample ID: 420544 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.70E-02 4.53E-03 6.06E-03 Sample ID: 421381 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.18E-02 4.07E-03 5.77E-03 Sample ID: 422539 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.62E-02 4.85E-03 5.56E-03 Sample ID: 423281 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.11E-02 4.07E-03 5.85E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 19 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 424394 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.32E-02 4.26E-03 5.98E-03 Sample ID: 424401 Sample Dates: 6/28/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.49E-03 0.00E+00 1.49E-03 Cs-137 <1.18E-03 0.00E+00 1.18E-03 Be-7 1.28E-01 2.81E-02 1.82E-02 K-40 2.92E-02 1.33E-02 3.96E-03 Sample ID: 425393 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.90E-02 4.41E-03 5.50E-03 Sample ID: 425956 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.29E-02 4.28E-03 6.06E-03 Sample ID: 426328 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.49E-02 4.38E-03 5.97E-03 Sample ID: 427020 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.12E-02 4.33E-03 6.39E-03 Sample ID: 427679 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.97E-02 4.54E-03 5.70E-03 Sample ID: 428174 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.49E-02 4.99E-03 6.04E-03 Sample ID: 428856 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.90E-02 4.54E-03 5.72E-03 Sample ID: 429366 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA Beta 3.37E-02 5.53E-03 6.21E-03 Sample ID: 429917 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.83E-02 4.73E-03 6.26E-03 Sample ID: 430538 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.45E-02 4.82E-03 5.65E-03 Sample ID: 431026 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.47E-02 5.13E-03 6.27E-03 Sample ID: 431433 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA Beta 1.80E-02 5.14E-03 6.83E-03 Sample ID: 431764 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Beta 2.82E-02 5.93E-03 7.30E-03 Sample ID: 431771 Sample Dates: 9/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.48E-03 0.00E+00 1.48E-03 Cs-137 <1.08E-03 0.00E+00 1.08E-03 Be-7 1.30E-01 3.07E-02 2.53E-02 K-40 <2.29E-02 0.00E+00 2.29E-02 Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 398912 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.35E-02 0.00E+00 3.35E-02 Cs-134 <2.22E-02 0.00E+00 2.22E-02 Cs-137 <2.99E-02 0.00E+00 2.99E-02 Be-7 <2.27E-01 0.00E+00 2.27E-01 K-40 8.94E-01 4.17E-01 4.16E-01 Sample ID: 399227 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.10E-02 0.00E+00 2.10E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 20 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 399227 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 6.49E-01 2.62E-01 2.16E-01 Sample ID: 399976 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.02E-02 0.00E+00 2.02E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <1.57E-02 0.00E+00 1.57E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 7.78E-01 3.12E-01 3.11E-01 Sample ID: 400329 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.68E-02 0.00E+00 3.68E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <3.30E-02 0.00E+00 3.30E-02 Be-7 <2.43E-01 0.00E+00 2.43E-01 K-40 6.88E-01 3.86E-01 4.38E-01 Sample ID: 400959 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.37E-02 0.00E+00 3.37E-02 Cs-134 <2.18E-02 0.00E+00 2.18E-02 Cs-137 <2.69E-02 0.00E+00 2.69E-02 Be-7 <2.32E-01 0.00E+00 2.32E-01 K-40 1.38E+00 4.93E-01 3.89E-01 Sample ID: 401322 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.77E-02 0.00E+00 1.77E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 9.71E-01 3.03E-01 5.85E-02 Sample ID: 401775 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <1.11E-01 0.00E+00 1.11E-01 K-40 8.94E-01 3.16E-01 2.22E-01 Sample ID: 402286 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.19E-02 0.00E+00 2.19E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <1.52E-01 0.00E+00 1.52E-01 K-40 9.42E-01 3.08E-01 6.38E-02 Sample ID: 403014 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <1.20E-02 0.00E+00 1.20E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 7.53E-01 2.86E-01 2.43E-01 Sample ID: 404492 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.10E-02 0.00E+00 2.10E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.35E-02 0.00E+00 1.35E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 1.03E+00 3.31E-01 2.40E-01 Sample ID: 405378 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.74E-02 0.00E+00 1.74E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 21 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 405378 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 6.56E-01 2.84E-01 2.99E-01 Sample ID: 405995 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <8.16E-02 0.00E+00 8.16E-02 K-40 8.10E-01 2.73E-01 5.78E-02 Sample ID: 406334 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.96E-02 0.00E+00 1.96E-02 Be-7 <8.72E-02 0.00E+00 8.72E-02 K-40 8.67E-01 3.04E-01 2.44E-01 Sample ID: 407523 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <1.28E-02 0.00E+00 1.28E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 9.53E-01 3.08E-01 6.30E-02 Sample ID: 408103 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.26E-02 0.00E+00 1.26E-02 Cs-134 <9.50E-03 0.00E+00 9.50E-03 Cs-137 <1.18E-02 0.00E+00 1.18E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 5.09E-01 2.47E-01 2.65E-01 Sample ID: 409416 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.07E-02 0.00E+00 2.07E-02 Cs-134 <1.34E-02 0.00E+00 1.34E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 7.48E-01 2.61E-01 5.80E-02 Sample ID: 409751 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <2.20E-02 0.00E+00 2.20E-02 Be-7 <1.44E-01 0.00E+00 1.44E-01 K-40 <5.42E-01 0.00E+00 5.42E-01 Sample ID: 410903 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 7.28E-01 2.92E-01 2.64E-01 Sample ID: 411403 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.70E-02 0.00E+00 1.70E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 <9.42E-02 0.00E+00 9.42E-02 K-40 6.60E-01 2.41E-01 5.59E-02 Sample ID: 411727 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <1.43E-02 0.00E+00 1.43E-02 Be-7 <9.43E-02 0.00E+00 9.43E-02 K-40 8.86E-01 3.40E-01 3.71E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 22 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 412190 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.36E-02 0.00E+00 1.36E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <1.17E-01 0.00E+00 1.17E-01 K-40 7.25E-01 2.72E-01 2.17E-01 Sample ID: 412706 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <9.56E-02 0.00E+00 9.56E-02 K-40 5.78E-01 2.58E-01 2.36E-01 Sample ID: 413309 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.72E-02 0.00E+00 1.72E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.15E-02 0.00E+00 1.15E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 6.65E-01 2.82E-01 2.97E-01 Sample ID: 413856 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.88E-02 0.00E+00 1.88E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <9.84E-03 0.00E+00 9.84E-03 Be-7 <9.40E-02 0.00E+00 9.40E-02 K-40 6.67E-01 2.66E-01 2.03E-01 Sample ID: 414997 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.94E-02 0.00E+00 1.94E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <9.48E-02 0.00E+00 9.48E-02 K-40 8.28E-01 2.90E-01 2.23E-01 Sample ID: 415368 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.81E-02 0.00E+00 1.81E-02 Be-7 <9.49E-02 0.00E+00 9.49E-02 K-40 9.45E-01 3.12E-01 2.36E-01 Sample ID: 416361 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.88E-02 0.00E+00 1.88E-02 Cs-137 <2.34E-02 0.00E+00 2.34E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 <5.67E-01 0.00E+00 5.67E-01 Sample ID: 416985 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.78E-02 0.00E+00 1.78E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.10E-02 0.00E+00 1.10E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 6.51E-01 2.38E-01 5.51E-02 Sample ID: 417379 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <1.76E-02 0.00E+00 1.76E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 6.03E-01 2.68E-01 2.83E-01 Sample ID: 417770 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <1.86E-02 0.00E+00 1.86E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 23 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 417770 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.81E-02 0.00E+00 1.81E-02 Be-7 <1.17E-01 0.00E+00 1.17E-01 K-40 9.59E-01 3.49E-01 3.27E-01 Sample ID: 418234 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.07E-02 0.00E+00 2.07E-02 Cs-134 <1.14E-02 0.00E+00 1.14E-02 Cs-137 <1.42E-02 0.00E+00 1.42E-02 Be-7 <1.01E-01 0.00E+00 1.01E-01 K-40 6.07E-01 3.04E-01 3.84E-01 Sample ID: 418963 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <9.13E-03 0.00E+00 9.13E-03 Be-7 <9.55E-02 0.00E+00 9.55E-02 K-40 7.79E-01 2.76E-01 1.95E-01 Sample ID: 419464 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.19E-02 0.00E+00 1.19E-02 Cs-137 <1.62E-02 0.00E+00 1.62E-02 Be-7 <8.60E-02 0.00E+00 8.60E-02 K-40 <5.75E-01 0.00E+00 5.75E-01 Sample ID: 419991 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <9.43E-02 0.00E+00 9.43E-02 K-40 8.84E-01 3.09E-01 2.61E-01 Sample ID: 420545 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.90E-02 0.00E+00 1.90E-02 Cs-134 <1.80E-02 0.00E+00 1.80E-02 Cs-137 <3.64E-03 0.00E+00 3.64E-03 Be-7 <6.40E-02 0.00E+00 6.40E-02 K-40 8.81E-01 3.35E-01 3.33E-01 Sample ID: 421382 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.98E-02 0.00E+00 1.98E-02 Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.52E-01 0.00E+00 1.52E-01 K-40 5.97E-01 2.62E-01 2.27E-01 Sample ID: 422540 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.73E-02 0.00E+00 1.73E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.98E-02 0.00E+00 1.98E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 5.87E-01 2.74E-01 2.94E-01 Sample ID: 423282 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.07E-02 0.00E+00 1.07E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 9.49E-01 2.94E-01 5.71E-02 Sample ID: 424402 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.04E-02 0.00E+00 2.04E-02 Cs-134 <1.74E-02 0.00E+00 1.74E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 24 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 424402 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA K-40 1.07E+00 3.32E-01 2.23E-01 Sample ID: 425394 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <9.20E-03 0.00E+00 9.20E-03 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 6.44E-01 2.88E-01 3.22E-01 Sample ID: 425957 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.23E-02 0.00E+00 1.23E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <7.61E-02 0.00E+00 7.61E-02 K-40 8.40E-01 3.04E-01 2.65E-01 Sample ID: 426329 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.71E-02 0.00E+00 1.71E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <1.82E-02 0.00E+00 1.82E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 9.03E-01 3.29E-01 2.86E-01 Sample ID: 427021 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.10E-02 0.00E+00 1.10E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 7.47E-01 2.60E-01 5.79E-02 Sample ID: 427680 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.76E-02 0.00E+00 1.76E-02 Cs-134 <9.48E-03 0.00E+00 9.48E-03 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 6.62E-01 2.65E-01 2.27E-01 Sample ID: 428175 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.20E-02 0.00E+00 2.20E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <2.41E-02 0.00E+00 2.41E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 1.02E+00 3.43E-01 2.65E-01 Sample ID: 428857 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <1.96E-02 0.00E+00 1.96E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 5.99E-01 2.79E-01 3.14E-01 Sample ID: 429367 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.59E-02 0.00E+00 3.59E-02 Cs-134 <1.34E-02 0.00E+00 1.34E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 8.85E-01 3.00E-01 1.93E-01 Sample ID: 429918 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.11E-02 0.00E+00 1.11E-02 Cs-134 <1.22E-02 0.00E+00 1.22E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <6.02E-02 0.00E+00 6.02E-02 K-40 7.59E-01 2.65E-01 5.88E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 25 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 200 Sample Point 200 [ INDICATOR - WSW @ 1 miles ]

Sample ID: 430539 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.96E-02 0.00E+00 1.96E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <7.43E-02 0.00E+00 7.43E-02 K-40 1.03E+00 3.10E-01 5.71E-02 Sample ID: 431027 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <2.72E-03 0.00E+00 2.72E-03 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 1.03E+00 3.27E-01 2.16E-01 Sample ID: 431434 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.41E-02 0.00E+00 1.41E-02 Cs-134 <1.81E-02 0.00E+00 1.81E-02 Cs-137 <1.53E-02 0.00E+00 1.53E-02 Be-7 <8.50E-02 0.00E+00 8.50E-02 K-40 1.03E+00 3.47E-01 2.66E-01 Sample ID: 431772 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.43E-02 0.00E+00 2.43E-02 Cs-134 <9.97E-03 0.00E+00 9.97E-03 Cs-137 <1.24E-02 0.00E+00 1.24E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 1.23E+00 3.52E-01 6.18E-02 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 398913 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.73E-02 0.00E+00 3.73E-02 Cs-134 <2.38E-02 0.00E+00 2.38E-02 Cs-137 <3.56E-02 0.00E+00 3.56E-02 Be-7 <2.59E-01 0.00E+00 2.59E-01 K-40 1.13E+00 5.64E-01 7.26E-01 Sample ID: 399228 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <9.91E-02 0.00E+00 9.91E-02 K-40 7.80E-01 2.69E-01 5.87E-02 Sample ID: 399977 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.09E-02 0.00E+00 2.09E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <2.29E-02 0.00E+00 2.29E-02 Be-7 <8.82E-02 0.00E+00 8.82E-02 K-40 <6.22E-01 0.00E+00 6.22E-01 Sample ID: 400330 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <4.10E-02 0.00E+00 4.10E-02 Cs-134 <2.79E-02 0.00E+00 2.79E-02 Cs-137 <3.65E-02 0.00E+00 3.65E-02 Be-7 <2.83E-01 0.00E+00 2.83E-01 K-40 1.01E+00 4.32E-01 3.88E-01 Sample ID: 400960 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.20E-02 0.00E+00 3.20E-02 Cs-134 <2.72E-02 0.00E+00 2.72E-02 Cs-137 <2.69E-02 0.00E+00 2.69E-02 Be-7 <2.07E-01 0.00E+00 2.07E-01 K-40 1.25E+00 4.60E-01 3.36E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 26 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 401323 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.06E-02 0.00E+00 1.06E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 7.08E-01 2.72E-01 2.28E-01 Sample ID: 401776 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <1.11E-01 0.00E+00 1.11E-01 K-40 6.90E-01 2.88E-01 2.61E-01 Sample ID: 402287 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.98E-02 0.00E+00 1.98E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <1.06E-01 0.00E+00 1.06E-01 K-40 7.92E-01 2.87E-01 2.22E-01 Sample ID: 403015 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.74E-02 0.00E+00 1.74E-02 Cs-134 <9.23E-03 0.00E+00 9.23E-03 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 9.77E-01 3.01E-01 5.76E-02 Sample ID: 404493 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.87E-02 0.00E+00 1.87E-02 Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <1.54E-02 0.00E+00 1.54E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 8.66E-01 3.24E-01 2.75E-01 Sample ID: 405379 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.21E-02 0.00E+00 1.21E-02 Be-7 <9.04E-02 0.00E+00 9.04E-02 K-40 8.77E-01 2.87E-01 5.94E-02 Sample ID: 405996 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.05E-02 0.00E+00 3.05E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <1.94E-02 0.00E+00 1.94E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 5.20E-01 2.70E-01 3.34E-01 Sample ID: 406335 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 6.41E-01 2.62E-01 2.43E-01 Sample ID: 407524 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <1.57E-02 0.00E+00 1.57E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 6.59E-01 2.80E-01 2.91E-01 Sample ID: 408104 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 27 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 408104 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.11E-02 0.00E+00 1.11E-02 Be-7 <9.30E-02 0.00E+00 9.30E-02 K-40 9.02E-01 3.19E-01 2.95E-01 Sample ID: 409417 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <7.45E-02 0.00E+00 7.45E-02 K-40 5.33E-01 2.48E-01 2.61E-01 Sample ID: 409752 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.51E-02 0.00E+00 2.51E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <1.11E-01 0.00E+00 1.11E-01 K-40 9.81E-01 3.26E-01 2.45E-01 Sample ID: 410904 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.58E-02 0.00E+00 1.58E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <1.72E-02 0.00E+00 1.72E-02 Be-7 <9.22E-02 0.00E+00 9.22E-02 K-40 5.79E-01 2.60E-01 2.55E-01 Sample ID: 411404 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.96E-02 0.00E+00 1.96E-02 Cs-134 <1.16E-02 0.00E+00 1.16E-02 Cs-137 <1.12E-02 0.00E+00 1.12E-02 Be-7 <9.36E-02 0.00E+00 9.36E-02 K-40 <5.61E-01 0.00E+00 5.61E-01 Sample ID: 411728 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <1.24E-02 0.00E+00 1.24E-02 Be-7 <9.07E-02 0.00E+00 9.07E-02 K-40 6.34E-01 2.47E-01 2.01E-01 Sample ID: 412191 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.99E-02 0.00E+00 1.99E-02 Cs-134 <1.26E-02 0.00E+00 1.26E-02 Cs-137 <8.80E-03 0.00E+00 8.80E-03 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 <5.02E-01 0.00E+00 5.02E-01 Sample ID: 412707 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.27E-02 0.00E+00 1.27E-02 Cs-134 <1.16E-02 0.00E+00 1.16E-02 Cs-137 <1.69E-02 0.00E+00 1.69E-02 Be-7 <8.35E-02 0.00E+00 8.35E-02 K-40 8.23E-01 2.66E-01 5.44E-02 Sample ID: 413310 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.72E-02 0.00E+00 1.72E-02 Cs-134 <1.29E-02 0.00E+00 1.29E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <9.66E-02 0.00E+00 9.66E-02 K-40 5.82E-01 2.19E-01 5.25E-02 Sample ID: 413857 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <8.82E-02 0.00E+00 8.82E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 28 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 413857 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA K-40 7.09E-01 2.59E-01 2.05E-01 Sample ID: 414998 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <7.72E-03 0.00E+00 7.72E-03 Cs-137 <1.57E-02 0.00E+00 1.57E-02 Be-7 <1.41E-01 0.00E+00 1.41E-01 K-40 1.07E+00 3.19E-01 5.92E-02 Sample ID: 415369 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 7.38E-01 2.68E-01 1.85E-01 Sample ID: 416362 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.41E-02 0.00E+00 1.41E-02 Cs-137 <1.75E-02 0.00E+00 1.75E-02 Be-7 <6.40E-02 0.00E+00 6.40E-02 K-40 6.51E-01 2.48E-01 6.08E-02 Sample ID: 416986 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <1.87E-02 0.00E+00 1.87E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 8.62E-01 3.02E-01 2.21E-01 Sample ID: 417380 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.45E-02 0.00E+00 1.45E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <2.13E-02 0.00E+00 2.13E-02 K-40 7.29E-01 2.87E-01 2.76E-01 Sample ID: 417771 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 6.33E-01 3.28E-01 4.27E-01 Sample ID: 418235 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.72E-02 0.00E+00 1.72E-02 Cs-134 <1.14E-02 0.00E+00 1.14E-02 Cs-137 <2.09E-02 0.00E+00 2.09E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 8.13E-01 2.90E-01 2.02E-01 Sample ID: 418964 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.17E-01 0.00E+00 1.17E-01 K-40 7.68E-01 2.75E-01 6.31E-02 Sample ID: 419465 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.75E-02 0.00E+00 1.75E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <1.43E-02 0.00E+00 1.43E-02 Be-7 <6.40E-02 0.00E+00 6.40E-02 K-40 4.64E-01 2.71E-01 3.47E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 29 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 419992 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <1.00E-02 0.00E+00 1.00E-02 Be-7 <1.06E-01 0.00E+00 1.06E-01 K-40 9.19E-01 3.23E-01 2.53E-01 Sample ID: 420546 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.36E-02 0.00E+00 1.36E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <1.31E-02 0.00E+00 1.31E-02 Be-7 <9.41E-02 0.00E+00 9.41E-02 K-40 8.19E-01 2.68E-01 5.55E-02 Sample ID: 421383 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.13E-02 0.00E+00 2.13E-02 Be-7 <9.44E-02 0.00E+00 9.44E-02 K-40 5.43E-01 2.26E-01 6.13E-02 Sample ID: 422541 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.10E-01 0.00E+00 1.10E-01 K-40 7.94E-01 2.64E-01 5.52E-02 Sample ID: 423283 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.47E-02 0.00E+00 1.47E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 7.67E-01 2.58E-01 5.47E-02 Sample ID: 424403 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.59E-02 0.00E+00 1.59E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 5.89E-01 2.46E-01 2.18E-01 Sample ID: 425395 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.45E-02 0.00E+00 1.45E-02 Cs-134 <8.98E-03 0.00E+00 8.98E-03 Cs-137 <1.57E-02 0.00E+00 1.57E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 5.57E-01 2.64E-01 2.96E-01 Sample ID: 425958 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.59E-02 0.00E+00 1.59E-02 Cs-137 <1.78E-02 0.00E+00 1.78E-02 Be-7 <2.11E-02 0.00E+00 2.11E-02 K-40 7.72E-01 2.60E-01 5.50E-02 Sample ID: 426330 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.36E-02 0.00E+00 1.36E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.56E-02 0.00E+00 1.56E-02 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 6.16E-01 2.73E-01 2.96E-01 Sample ID: 427022 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <7.86E-03 0.00E+00 7.86E-03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 30 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 427022 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.29E-01 0.00E+00 1.29E-01 K-40 8.94E-01 2.94E-01 6.06E-02 Sample ID: 427681 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.30E-02 0.00E+00 2.30E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 7.53E-01 2.70E-01 6.19E-02 Sample ID: 428176 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.62E-02 0.00E+00 1.62E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 7.75E-01 2.73E-01 6.18E-02 Sample ID: 428858 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.72E-02 0.00E+00 1.72E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 8.03E-01 2.67E-01 5.58E-02 Sample ID: 429368 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.06E-02 0.00E+00 3.06E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.25E-02 0.00E+00 1.25E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 8.07E-01 3.23E-01 3.26E-01 Sample ID: 429919 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <9.63E-02 0.00E+00 9.63E-02 K-40 <6.88E-01 0.00E+00 6.88E-01 Sample ID: 430540 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.10E-02 0.00E+00 1.10E-02 Cs-134 <1.67E-02 0.00E+00 1.67E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 8.24E-01 3.08E-01 2.84E-01 Sample ID: 431028 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.54E-02 0.00E+00 1.54E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 9.99E-01 3.23E-01 2.24E-01 Sample ID: 431435 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 9.34E-01 3.43E-01 3.48E-01 Sample ID: 431773 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.35E-02 0.00E+00 1.35E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 31 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 201 Sample Point 201 [ INDICATOR - NE @ 0.5 miles ]

Sample ID: 431773 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA K-40 7.18E-01 2.55E-01 5.72E-02 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 398914 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.48E-02 0.00E+00 3.48E-02 Cs-134 <1.93E-02 0.00E+00 1.93E-02 Cs-137 <3.52E-02 0.00E+00 3.52E-02 Be-7 <1.77E-01 0.00E+00 1.77E-01 K-40 1.01E+00 4.96E-01 6.00E-01 Sample ID: 399229 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.43E-02 0.00E+00 2.43E-02 Cs-134 <1.75E-02 0.00E+00 1.75E-02 Cs-137 <2.48E-02 0.00E+00 2.48E-02 Be-7 <9.56E-02 0.00E+00 9.56E-02 K-40 8.50E-01 2.90E-01 6.23E-02 Sample ID: 399978 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.38E-02 0.00E+00 1.38E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.95E-02 0.00E+00 1.95E-02 Be-7 <1.17E-01 0.00E+00 1.17E-01 K-40 7.90E-01 3.02E-01 2.52E-01 Sample ID: 400331 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.79E-02 0.00E+00 3.79E-02 Cs-134 <3.63E-02 0.00E+00 3.63E-02 Cs-137 <3.25E-02 0.00E+00 3.25E-02 Be-7 <1.97E-01 0.00E+00 1.97E-01 K-40 1.19E+00 4.32E-01 1.01E-01 Sample ID: 400961 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <4.54E-02 0.00E+00 4.54E-02 Cs-134 <3.65E-02 0.00E+00 3.65E-02 Cs-137 <2.94E-02 0.00E+00 2.94E-02 Be-7 <2.07E-01 0.00E+00 2.07E-01 K-40 1.23E+00 4.34E-01 9.80E-02 Sample ID: 401324 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.77E-02 0.00E+00 1.77E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <8.80E-02 0.00E+00 8.80E-02 K-40 9.44E-01 3.17E-01 2.40E-01 Sample ID: 401777 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 <5.95E-01 0.00E+00 5.95E-01 Sample ID: 402288 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.64E-02 0.00E+00 1.64E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.93E-02 0.00E+00 1.93E-02 Be-7 <8.94E-02 0.00E+00 8.94E-02 K-40 7.80E-01 3.04E-01 2.98E-01 Sample ID: 403016 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.65E-02 0.00E+00 1.65E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.97E-02 0.00E+00 1.97E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 32 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 403016 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA K-40 8.63E-01 3.07E-01 2.11E-01 Sample ID: 404494 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.04E-02 0.00E+00 2.04E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <9.62E-02 0.00E+00 9.62E-02 K-40 8.09E-01 2.83E-01 6.27E-02 Sample ID: 405380 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.29E-02 0.00E+00 1.29E-02 Cs-137 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 8.64E-01 2.81E-01 5.71E-02 Sample ID: 405997 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.63E-01 0.00E+00 1.63E-01 K-40 7.41E-01 2.77E-01 2.22E-01 Sample ID: 406336 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.33E-02 0.00E+00 1.33E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <1.31E-02 0.00E+00 1.31E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 7.61E-01 2.79E-01 2.17E-01 Sample ID: 407525 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.45E-02 0.00E+00 2.45E-02 Cs-134 <1.81E-02 0.00E+00 1.81E-02 Cs-137 <9.90E-03 0.00E+00 9.90E-03 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 3.70E-01 2.39E-01 3.09E-01 Sample ID: 408105 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.74E-02 0.00E+00 1.74E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 6.08E-01 2.33E-01 5.68E-02 Sample ID: 409418 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.32E-02 0.00E+00 1.32E-02 Cs-134 <1.64E-02 0.00E+00 1.64E-02 Cs-137 <1.72E-02 0.00E+00 1.72E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 7.74E-01 2.64E-01 5.67E-02 Sample ID: 409753 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.86E-02 0.00E+00 1.86E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <2.05E-02 0.00E+00 2.05E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 7.56E-01 3.25E-01 3.75E-01 Sample ID: 410905 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.58E-02 0.00E+00 1.58E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <8.37E-02 0.00E+00 8.37E-02 K-40 5.24E-01 2.42E-01 2.50E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 33 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 411405 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.61E-02 0.00E+00 1.61E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.77E-02 0.00E+00 1.77E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 <4.60E-01 0.00E+00 4.60E-01 Sample ID: 411729 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.72E-02 0.00E+00 1.72E-02 Cs-134 <1.83E-02 0.00E+00 1.83E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <1.44E-01 0.00E+00 1.44E-01 K-40 8.32E-01 2.73E-01 5.64E-02 Sample ID: 412192 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.51E-02 0.00E+00 1.51E-02 Cs-134 <1.64E-02 0.00E+00 1.64E-02 Cs-137 <1.26E-02 0.00E+00 1.26E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 9.62E-01 3.07E-01 6.21E-02 Sample ID: 412708 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.43E-02 0.00E+00 1.43E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 8.21E-01 2.84E-01 2.04E-01 Sample ID: 413311 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <1.58E-02 0.00E+00 1.58E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <7.83E-02 0.00E+00 7.83E-02 K-40 9.25E-01 3.34E-01 3.11E-01 Sample ID: 413858 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <1.03E-02 0.00E+00 1.03E-02 Cs-137 <1.43E-02 0.00E+00 1.43E-02 Be-7 <9.33E-02 0.00E+00 9.33E-02 K-40 <5.67E-01 0.00E+00 5.67E-01 Sample ID: 414999 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <9.19E-03 0.00E+00 9.19E-03 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 6.16E-01 2.55E-01 2.32E-01 Sample ID: 415370 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <1.08E-02 0.00E+00 1.08E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 7.48E-01 3.08E-01 3.32E-01 Sample ID: 416363 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.26E-02 0.00E+00 1.26E-02 Cs-137 <1.56E-02 0.00E+00 1.56E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 1.01E+00 3.10E-01 5.93E-02 Sample ID: 416987 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.88E-02 0.00E+00 1.88E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 34 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 416987 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 7.19E-01 2.52E-01 5.57E-02 Sample ID: 417381 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <1.27E-02 0.00E+00 1.27E-02 Cs-137 <1.41E-02 0.00E+00 1.41E-02 Be-7 <9.18E-02 0.00E+00 9.18E-02 K-40 8.67E-01 3.27E-01 3.17E-01 Sample ID: 417772 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.34E-02 0.00E+00 1.34E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 7.28E-01 2.78E-01 2.11E-01 Sample ID: 418236 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.96E-02 0.00E+00 1.96E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.76E-02 0.00E+00 1.76E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 4.74E-01 2.46E-01 2.91E-01 Sample ID: 418965 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.45E-02 0.00E+00 1.45E-02 Cs-134 <1.58E-02 0.00E+00 1.58E-02 Cs-137 <2.14E-02 0.00E+00 2.14E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 7.46E-01 2.76E-01 2.31E-01 Sample ID: 419466 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <9.12E-03 0.00E+00 9.12E-03 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 8.31E-01 2.72E-01 5.63E-02 Sample ID: 419993 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <1.06E-02 0.00E+00 1.06E-02 Cs-137 <1.73E-02 0.00E+00 1.73E-02 Be-7 <9.47E-02 0.00E+00 9.47E-02 K-40 8.71E-01 2.92E-01 2.06E-01 Sample ID: 420547 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.02E-02 0.00E+00 2.02E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 6.43E-01 2.57E-01 2.26E-01 Sample ID: 421384 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.76E-02 0.00E+00 1.76E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <3.31E-03 0.00E+00 3.31E-03 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 5.89E-01 2.50E-01 2.23E-01 Sample ID: 422542 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.29E-02 0.00E+00 1.29E-02 Cs-134 <1.02E-02 0.00E+00 1.02E-02 Cs-137 <8.63E-03 0.00E+00 8.63E-03 Be-7 <1.08E-01 0.00E+00 1.08E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 35 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 422542 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA K-40 7.31E-01 2.83E-01 2.69E-01 Sample ID: 423284 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.37E-02 0.00E+00 1.37E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <1.71E-02 0.00E+00 1.71E-02 Be-7 <9.47E-02 0.00E+00 9.47E-02 K-40 6.60E-01 2.55E-01 1.90E-01 Sample ID: 424404 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.66E-02 0.00E+00 1.66E-02 Cs-134 <1.08E-02 0.00E+00 1.08E-02 Cs-137 <1.98E-02 0.00E+00 1.98E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 6.05E-01 2.55E-01 2.23E-01 Sample ID: 425396 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.20E-02 0.00E+00 2.20E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <1.62E-02 0.00E+00 1.62E-02 Be-7 <9.61E-02 0.00E+00 9.61E-02 K-40 1.04E+00 3.06E-01 5.62E-02 Sample ID: 425959 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.48E-02 0.00E+00 1.48E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <9.67E-02 0.00E+00 9.67E-02 K-40 8.47E-01 2.78E-01 5.74E-02 Sample ID: 426331 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <8.45E-02 0.00E+00 8.45E-02 K-40 1.10E+00 3.19E-01 5.64E-02 Sample ID: 427023 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 6.72E-01 2.56E-01 6.28E-02 Sample ID: 427682 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.49E-02 0.00E+00 1.49E-02 Cs-134 <1.27E-02 0.00E+00 1.27E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 8.05E-01 2.68E-01 5.60E-02 Sample ID: 428177 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 7.02E-01 2.88E-01 2.93E-01 Sample ID: 428859 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 7.47E-01 2.75E-01 2.05E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 36 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 202 Sample Point 202 [ INDICATOR - S @ 1 miles ]

Sample ID: 429369 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 8.82E-01 3.12E-01 2.60E-01 Sample ID: 429920 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.41E-02 0.00E+00 1.41E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 8.66E-01 3.24E-01 2.84E-01 Sample ID: 430541 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 7.61E-01 3.22E-01 3.44E-01 Sample ID: 431029 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <9.27E-03 0.00E+00 9.27E-03 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <2.08E-02 0.00E+00 2.08E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 8.05E-01 3.04E-01 2.79E-01 Sample ID: 431436 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.26E-02 0.00E+00 1.26E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.35E-02 0.00E+00 1.35E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 8.35E-01 3.02E-01 2.50E-01 Sample ID: 431774 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.93E-02 0.00E+00 1.93E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <8.95E-02 0.00E+00 8.95E-02 K-40 9.00E-01 3.14E-01 2.49E-01 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 398915 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.94E-02 0.00E+00 3.94E-02 Cs-134 <2.90E-02 0.00E+00 2.90E-02 Cs-137 <3.93E-02 0.00E+00 3.93E-02 Be-7 <3.01E-01 0.00E+00 3.01E-01 K-40 9.97E-01 4.19E-01 3.52E-01 Sample ID: 399230 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.52E-02 0.00E+00 1.52E-02 Cs-134 <1.22E-02 0.00E+00 1.22E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 8.13E-01 3.10E-01 2.93E-01 Sample ID: 399979 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <9.47E-03 0.00E+00 9.47E-03 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 7.82E-01 2.94E-01 2.49E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 37 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 400332 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.49E-02 0.00E+00 3.49E-02 Cs-134 <2.82E-02 0.00E+00 2.82E-02 Cs-137 <2.79E-02 0.00E+00 2.79E-02 Be-7 <1.99E-01 0.00E+00 1.99E-01 K-40 <9.01E-01 0.00E+00 9.01E-01 Sample ID: 400962 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <2.94E-02 0.00E+00 2.94E-02 Cs-137 <2.46E-02 0.00E+00 2.46E-02 Be-7 <2.49E-01 0.00E+00 2.49E-01 K-40 1.40E+00 5.09E-01 4.29E-01 Sample ID: 401325 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.70E-02 0.00E+00 1.70E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 9.34E-01 3.20E-01 2.47E-01 Sample ID: 401778 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.15E-02 0.00E+00 2.15E-02 Cs-134 <1.33E-02 0.00E+00 1.33E-02 Cs-137 <2.30E-02 0.00E+00 2.30E-02 Be-7 <1.41E-01 0.00E+00 1.41E-01 K-40 8.53E-01 3.30E-01 2.79E-01 Sample ID: 402289 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.86E-02 0.00E+00 1.86E-02 Cs-134 <1.23E-02 0.00E+00 1.23E-02 Cs-137 <1.18E-02 0.00E+00 1.18E-02 Be-7 <8.83E-02 0.00E+00 8.83E-02 K-40 6.24E-01 2.93E-01 3.42E-01 Sample ID: 403017 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.15E-02 0.00E+00 1.15E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <9.86E-02 0.00E+00 9.86E-02 K-40 <6.22E-01 0.00E+00 6.22E-01 Sample ID: 404495 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.89E-02 0.00E+00 1.89E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 7.16E-01 2.86E-01 2.68E-01 Sample ID: 405381 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.06E-02 0.00E+00 2.06E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <9.76E-03 0.00E+00 9.76E-03 Be-7 <1.12E-01 0.00E+00 1.12E-01 K-40 5.89E-01 2.76E-01 2.99E-01 Sample ID: 405998 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.62E-02 0.00E+00 3.62E-02 Cs-134 <1.65E-02 0.00E+00 1.65E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 8.01E-01 2.79E-01 6.20E-02 Sample ID: 406337 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.10E-02 0.00E+00 2.10E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 38 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 406337 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 9.36E-01 3.53E-01 3.52E-01 Sample ID: 407526 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.86E-02 0.00E+00 2.86E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.20E-02 0.00E+00 1.20E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 7.73E-01 2.90E-01 2.46E-01 Sample ID: 408106 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <1.34E-02 0.00E+00 1.34E-02 Cs-137 <1.18E-02 0.00E+00 1.18E-02 Be-7 <1.50E-01 0.00E+00 1.50E-01 K-40 8.28E-01 2.79E-01 5.91E-02 Sample ID: 409419 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 8.71E-01 2.95E-01 6.38E-02 Sample ID: 409754 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.86E-02 0.00E+00 1.86E-02 Be-7 <1.01E-01 0.00E+00 1.01E-01 K-40 6.81E-01 2.42E-01 5.43E-02 Sample ID: 410906 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.40E-02 0.00E+00 2.40E-02 Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 6.94E-01 2.94E-01 3.09E-01 Sample ID: 411406 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.87E-02 0.00E+00 1.87E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <1.59E-02 0.00E+00 1.59E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 <6.48E-01 0.00E+00 6.48E-01 Sample ID: 411730 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <1.17E-02 0.00E+00 1.17E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <9.41E-02 0.00E+00 9.41E-02 K-40 7.30E-01 2.51E-01 5.49E-02 Sample ID: 412193 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.34E-02 0.00E+00 1.34E-02 Cs-134 <9.97E-03 0.00E+00 9.97E-03 Cs-137 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 8.09E-01 2.78E-01 6.09E-02 Sample ID: 412709 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <1.22E-02 0.00E+00 1.22E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 39 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 412709 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA K-40 8.12E-01 3.08E-01 2.83E-01 Sample ID: 413312 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.55E-02 0.00E+00 1.55E-02 Cs-134 <8.90E-03 0.00E+00 8.90E-03 Cs-137 <1.11E-02 0.00E+00 1.11E-02 Be-7 <8.22E-02 0.00E+00 8.22E-02 K-40 5.93E-01 2.42E-01 2.09E-01 Sample ID: 413859 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <1.22E-02 0.00E+00 1.22E-02 Be-7 <9.72E-02 0.00E+00 9.72E-02 K-40 7.56E-01 2.68E-01 2.05E-01 Sample ID: 415000 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.64E-02 0.00E+00 1.64E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 6.04E-01 2.42E-01 2.04E-01 Sample ID: 415371 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.53E-02 0.00E+00 1.53E-02 Cs-134 <1.01E-02 0.00E+00 1.01E-02 Cs-137 <1.08E-02 0.00E+00 1.08E-02 Be-7 <9.14E-02 0.00E+00 9.14E-02 K-40 9.24E-01 2.95E-01 1.86E-01 Sample ID: 416364 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <8.61E-03 0.00E+00 8.61E-03 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.27E-02 0.00E+00 1.27E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 8.50E-01 2.88E-01 2.23E-01 Sample ID: 416988 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.35E-02 0.00E+00 1.35E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 7.16E-01 2.72E-01 2.08E-01 Sample ID: 417382 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.65E-02 0.00E+00 1.65E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-137 <1.84E-02 0.00E+00 1.84E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 6.38E-01 2.33E-01 5.40E-02 Sample ID: 417773 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 1.05E+00 3.09E-01 5.68E-02 Sample ID: 418237 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.01E-02 0.00E+00 2.01E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <1.75E-02 0.00E+00 1.75E-02 Be-7 <8.62E-02 0.00E+00 8.62E-02 K-40 5.54E-01 2.91E-01 3.71E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 40 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 418966 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.67E-02 0.00E+00 1.67E-02 Cs-137 <9.20E-03 0.00E+00 9.20E-03 Be-7 <9.62E-02 0.00E+00 9.62E-02 K-40 5.94E-01 2.46E-01 2.05E-01 Sample ID: 419467 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.74E-02 0.00E+00 1.74E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 9.17E-01 2.98E-01 6.06E-02 Sample ID: 419994 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <6.49E-02 0.00E+00 6.49E-02 K-40 6.47E-01 2.72E-01 2.42E-01 Sample ID: 420548 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.01E-02 0.00E+00 2.01E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <8.48E-02 0.00E+00 8.48E-02 K-40 <5.93E-01 0.00E+00 5.93E-01 Sample ID: 421385 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-137 <1.34E-02 0.00E+00 1.34E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 7.64E-01 2.87E-01 2.40E-01 Sample ID: 422543 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 7.53E-01 2.59E-01 5.67E-02 Sample ID: 423285 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.65E-02 0.00E+00 1.65E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 1.01E+00 3.35E-01 2.48E-01 Sample ID: 424405 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.96E-02 0.00E+00 1.96E-02 Cs-134 <1.36E-02 0.00E+00 1.36E-02 Cs-137 <2.34E-02 0.00E+00 2.34E-02 Be-7 <9.74E-02 0.00E+00 9.74E-02 K-40 9.33E-01 3.23E-01 2.21E-01 Sample ID: 425397 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.43E-02 0.00E+00 2.43E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <1.93E-02 0.00E+00 1.93E-02 Be-7 <9.96E-02 0.00E+00 9.96E-02 K-40 7.74E-01 2.66E-01 5.83E-02 Sample ID: 425960 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 41 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 425960 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.86E-02 0.00E+00 1.86E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 8.04E-01 2.98E-01 2.02E-01 Sample ID: 426332 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.68E-02 0.00E+00 1.68E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 8.04E-01 3.19E-01 3.31E-01 Sample ID: 427024 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <1.65E-02 0.00E+00 1.65E-02 Cs-137 <1.94E-02 0.00E+00 1.94E-02 Be-7 <7.78E-02 0.00E+00 7.78E-02 K-40 6.88E-01 3.00E-01 3.21E-01 Sample ID: 427683 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.60E-02 0.00E+00 2.60E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <1.23E-02 0.00E+00 1.23E-02 Be-7 <9.22E-02 0.00E+00 9.22E-02 K-40 1.05E+00 3.38E-01 2.22E-01 Sample ID: 428178 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 8.41E-01 3.06E-01 2.34E-01 Sample ID: 428860 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <9.59E-03 0.00E+00 9.59E-03 Cs-134 <1.59E-02 0.00E+00 1.59E-02 Cs-137 <1.03E-02 0.00E+00 1.03E-02 Be-7 <9.72E-02 0.00E+00 9.72E-02 K-40 6.54E-01 3.32E-01 4.15E-01 Sample ID: 429370 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.75E-02 0.00E+00 2.75E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <2.10E-02 0.00E+00 2.10E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 6.22E-01 2.91E-01 3.33E-01 Sample ID: 429921 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.10E-02 0.00E+00 1.10E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.36E-01 0.00E+00 1.36E-01 K-40 7.26E-01 2.70E-01 1.86E-01 Sample ID: 430542 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 9.12E-01 3.15E-01 6.86E-02 Sample ID: 431030 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <1.17E-02 0.00E+00 1.17E-02 Be-7 <6.10E-02 0.00E+00 6.10E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 42 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 203 Sample Point 203 [ INDICATOR - SSW @ 2 miles ]

Sample ID: 431030 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA K-40 7.73E-01 3.15E-01 3.31E-01 Sample ID: 431437 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.98E-02 0.00E+00 1.98E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <1.73E-02 0.00E+00 1.73E-02 Be-7 <1.29E-01 0.00E+00 1.29E-01 K-40 8.42E-01 2.87E-01 6.17E-02 Sample ID: 431775 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <9.94E-03 0.00E+00 9.94E-03 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <2.04E-02 0.00E+00 2.04E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 9.74E-01 3.20E-01 6.60E-02 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 398916 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <4.35E-02 0.00E+00 4.35E-02 Cs-134 <3.42E-02 0.00E+00 3.42E-02 Cs-137 <3.28E-02 0.00E+00 3.28E-02 Be-7 <2.18E-01 0.00E+00 2.18E-01 K-40 1.39E+00 5.05E-01 3.97E-01 Sample ID: 399231 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.96E-02 0.00E+00 1.96E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 7.54E-01 2.91E-01 2.59E-01 Sample ID: 399980 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.57E-02 0.00E+00 1.57E-02 Be-7 <8.77E-02 0.00E+00 8.77E-02 K-40 1.06E+00 3.53E-01 2.52E-01 Sample ID: 400333 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <4.33E-02 0.00E+00 4.33E-02 Cs-134 <3.61E-02 0.00E+00 3.61E-02 Cs-137 <2.20E-02 0.00E+00 2.20E-02 Be-7 <2.19E-01 0.00E+00 2.19E-01 K-40 1.07E+00 5.05E-01 5.82E-01 Sample ID: 400963 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <4.28E-02 0.00E+00 4.28E-02 Cs-134 <2.66E-02 0.00E+00 2.66E-02 Cs-137 <3.71E-02 0.00E+00 3.71E-02 Be-7 <2.16E-01 0.00E+00 2.16E-01 K-40 1.09E+00 4.16E-01 1.02E-01 Sample ID: 401326 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.18E-02 0.00E+00 1.18E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <9.14E-03 0.00E+00 9.14E-03 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 6.85E-01 2.50E-01 5.80E-02 Sample ID: 401779 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <7.58E-02 0.00E+00 7.58E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 43 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 401779 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA K-40 7.67E-01 2.82E-01 2.21E-01 Sample ID: 402290 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.86E-02 0.00E+00 1.86E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 7.24E-01 2.78E-01 2.34E-01 Sample ID: 403018 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.98E-02 0.00E+00 1.98E-02 Cs-134 <1.64E-02 0.00E+00 1.64E-02 Cs-137 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 8.14E-01 2.71E-01 5.65E-02 Sample ID: 404496 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.68E-02 0.00E+00 1.68E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 7.29E-01 2.59E-01 5.81E-02 Sample ID: 405382 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.41E-02 0.00E+00 1.41E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <1.58E-02 0.00E+00 1.58E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 7.23E-01 3.24E-01 3.89E-01 Sample ID: 405999 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 7.03E-01 2.73E-01 2.32E-01 Sample ID: 406338 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.78E-02 0.00E+00 1.78E-02 Cs-134 <1.28E-02 0.00E+00 1.28E-02 Cs-137 <1.58E-02 0.00E+00 1.58E-02 Be-7 <5.86E-02 0.00E+00 5.86E-02 K-40 8.49E-01 2.76E-01 5.61E-02 Sample ID: 407527 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <1.58E-02 0.00E+00 1.58E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 1.02E+00 3.60E-01 3.69E-01 Sample ID: 408107 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.30E-02 0.00E+00 2.30E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <1.71E-02 0.00E+00 1.71E-02 Be-7 <7.36E-02 0.00E+00 7.36E-02 K-40 6.38E-01 2.68E-01 2.61E-01 Sample ID: 409420 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.76E-02 0.00E+00 1.76E-02 Cs-134 <1.47E-02 0.00E+00 1.47E-02 Cs-137 <1.71E-02 0.00E+00 1.71E-02 Be-7 <9.60E-02 0.00E+00 9.60E-02 K-40 6.87E-01 2.67E-01 2.23E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 44 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 409755 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.75E-02 0.00E+00 1.75E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 8.32E-01 3.28E-01 3.27E-01 Sample ID: 410907 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.35E-02 0.00E+00 1.35E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <7.40E-02 0.00E+00 7.40E-02 K-40 <5.89E-01 0.00E+00 5.89E-01 Sample ID: 411407 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.59E-02 0.00E+00 1.59E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 9.91E-01 3.20E-01 2.36E-01 Sample ID: 411731 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 6.29E-01 2.70E-01 2.41E-01 Sample ID: 412194 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.95E-02 0.00E+00 1.95E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <1.59E-02 0.00E+00 1.59E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 <5.95E-01 0.00E+00 5.95E-01 Sample ID: 412710 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.86E-02 0.00E+00 1.86E-02 Cs-134 <1.16E-02 0.00E+00 1.16E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.18E-01 0.00E+00 1.18E-01 K-40 8.82E-01 2.81E-01 5.56E-02 Sample ID: 413313 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <9.47E-02 0.00E+00 9.47E-02 K-40 7.16E-01 2.67E-01 1.99E-01 Sample ID: 413860 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.01E-02 0.00E+00 2.01E-02 Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <8.70E-02 0.00E+00 8.70E-02 K-40 6.78E-01 2.68E-01 2.27E-01 Sample ID: 415001 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <9.24E-03 0.00E+00 9.24E-03 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 7.92E-01 3.02E-01 2.84E-01 Sample ID: 415372 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.10E-02 0.00E+00 2.10E-02 Cs-134 <1.81E-02 0.00E+00 1.81E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 45 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 415372 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <8.73E-02 0.00E+00 8.73E-02 K-40 8.90E-01 3.07E-01 2.40E-01 Sample ID: 416365 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.99E-02 0.00E+00 1.99E-02 Cs-134 <1.86E-02 0.00E+00 1.86E-02 Cs-137 <1.95E-02 0.00E+00 1.95E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 <5.96E-01 0.00E+00 5.96E-01 Sample ID: 416989 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.37E-02 0.00E+00 1.37E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 6.56E-01 2.87E-01 3.15E-01 Sample ID: 417383 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.64E-02 0.00E+00 1.64E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.82E-02 0.00E+00 1.82E-02 Be-7 <8.57E-02 0.00E+00 8.57E-02 K-40 8.28E-01 2.91E-01 2.25E-01 Sample ID: 417774 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.95E-02 0.00E+00 1.95E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <8.91E-03 0.00E+00 8.91E-03 Be-7 <9.48E-02 0.00E+00 9.48E-02 K-40 7.30E-01 2.72E-01 2.11E-01 Sample ID: 418238 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <3.26E-03 0.00E+00 3.26E-03 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 6.44E-01 2.55E-01 2.10E-01 Sample ID: 418967 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.65E-02 0.00E+00 1.65E-02 Cs-134 <1.17E-02 0.00E+00 1.17E-02 Cs-137 <1.71E-02 0.00E+00 1.71E-02 Be-7 <9.50E-02 0.00E+00 9.50E-02 K-40 6.03E-01 2.72E-01 2.96E-01 Sample ID: 419468 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 7.36E-01 2.69E-01 1.91E-01 Sample ID: 419995 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.41E-02 0.00E+00 1.41E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <7.35E-02 0.00E+00 7.35E-02 K-40 8.50E-01 3.37E-01 3.72E-01 Sample ID: 420549 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.55E-02 0.00E+00 1.55E-02 Cs-134 <1.47E-02 0.00E+00 1.47E-02 Cs-137 <1.59E-02 0.00E+00 1.59E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 46 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 420549 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA K-40 9.62E-01 3.28E-01 2.88E-01 Sample ID: 421386 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <1.29E-02 0.00E+00 1.29E-02 Cs-137 <1.72E-02 0.00E+00 1.72E-02 Be-7 <5.91E-02 0.00E+00 5.91E-02 K-40 9.12E-01 3.27E-01 3.12E-01 Sample ID: 422544 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <5.92E-02 0.00E+00 5.92E-02 K-40 7.33E-01 2.74E-01 2.19E-01 Sample ID: 423286 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.90E-02 0.00E+00 1.90E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <2.03E-02 0.00E+00 2.03E-02 Be-7 <8.86E-02 0.00E+00 8.86E-02 K-40 7.83E-01 3.32E-01 3.81E-01 Sample ID: 424406 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.26E-02 0.00E+00 2.26E-02 Cs-134 <1.36E-02 0.00E+00 1.36E-02 Cs-137 <9.47E-03 0.00E+00 9.47E-03 Be-7 <7.68E-02 0.00E+00 7.68E-02 K-40 4.67E-01 2.85E-01 3.86E-01 Sample ID: 425398 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <1.19E-02 0.00E+00 1.19E-02 Cs-137 <2.17E-02 0.00E+00 2.17E-02 Be-7 <1.17E-01 0.00E+00 1.17E-01 K-40 4.26E-01 2.22E-01 2.15E-01 Sample ID: 425961 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.99E-02 0.00E+00 1.99E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <1.32E-02 0.00E+00 1.32E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 1.05E+00 3.12E-01 5.68E-02 Sample ID: 426333 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.56E-02 0.00E+00 1.56E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <9.03E-03 0.00E+00 9.03E-03 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 7.36E-01 2.58E-01 5.70E-02 Sample ID: 427025 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.45E-02 0.00E+00 1.45E-02 Cs-134 <1.65E-02 0.00E+00 1.65E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <9.95E-02 0.00E+00 9.95E-02 K-40 1.08E+00 3.19E-01 5.86E-02 Sample ID: 427684 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.99E-02 0.00E+00 1.99E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <1.62E-02 0.00E+00 1.62E-02 Be-7 <9.66E-02 0.00E+00 9.66E-02 K-40 6.76E-01 2.47E-01 5.73E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 47 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 204 Sample Point 204 [ CONTROL - NNE @ 22.4 miles ]

Sample ID: 428179 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.53E-02 0.00E+00 1.53E-02 Cs-134 <1.65E-02 0.00E+00 1.65E-02 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <9.74E-02 0.00E+00 9.74E-02 K-40 6.75E-01 2.88E-01 3.03E-01 Sample ID: 428861 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <1.77E-02 0.00E+00 1.77E-02 Be-7 <9.82E-02 0.00E+00 9.82E-02 K-40 9.91E-01 3.54E-01 3.53E-01 Sample ID: 429371 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.50E-02 0.00E+00 3.50E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <9.37E-02 0.00E+00 9.37E-02 K-40 4.93E-01 2.10E-01 5.81E-02 Sample ID: 429922 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <8.89E-03 0.00E+00 8.89E-03 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <1.76E-02 0.00E+00 1.76E-02 Be-7 <1.36E-01 0.00E+00 1.36E-01 K-40 7.47E-01 2.85E-01 2.42E-01 Sample ID: 430543 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <2.47E-02 0.00E+00 2.47E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 8.86E-01 3.00E-01 6.49E-02 Sample ID: 431031 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.71E-02 0.00E+00 1.71E-02 Cs-134 <1.91E-02 0.00E+00 1.91E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 1.01E+00 3.10E-01 5.85E-02 Sample ID: 431438 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.20E-02 0.00E+00 2.20E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.17E-02 0.00E+00 1.17E-02 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 9.88E-01 3.26E-01 2.48E-01 Sample ID: 431776 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <1.28E-02 0.00E+00 1.28E-02 Cs-137 <9.72E-03 0.00E+00 9.72E-03 Be-7 <1.28E-01 0.00E+00 1.28E-01 K-40 1.16E+00 3.69E-01 3.14E-01 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 398917 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.76E-02 0.00E+00 3.76E-02 Cs-134 <2.58E-02 0.00E+00 2.58E-02 Cs-137 <2.43E-02 0.00E+00 2.43E-02 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 <1.01E+00 0.00E+00 1.01E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 48 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 399232 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.53E-02 0.00E+00 1.53E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <2.13E-02 0.00E+00 2.13E-02 Be-7 <9.00E-02 0.00E+00 9.00E-02 K-40 9.89E-01 3.08E-01 5.96E-02 Sample ID: 399981 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.10E-02 0.00E+00 1.10E-02 Cs-137 <2.02E-02 0.00E+00 2.02E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 9.21E-01 2.96E-01 5.94E-02 Sample ID: 400334 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <4.15E-02 0.00E+00 4.15E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <3.68E-02 0.00E+00 3.68E-02 Be-7 <2.41E-01 0.00E+00 2.41E-01 K-40 1.57E+00 5.02E-01 1.01E-01 Sample ID: 400964 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.57E-02 0.00E+00 3.57E-02 Cs-134 <3.29E-02 0.00E+00 3.29E-02 Cs-137 <2.95E-02 0.00E+00 2.95E-02 Be-7 <1.93E-01 0.00E+00 1.93E-01 K-40 9.42E-01 3.78E-01 9.82E-02 Sample ID: 401327 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.48E-02 0.00E+00 1.48E-02 Cs-137 <2.22E-02 0.00E+00 2.22E-02 Be-7 <6.71E-02 0.00E+00 6.71E-02 K-40 6.84E-01 2.93E-01 2.86E-01 Sample ID: 401780 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <2.07E-02 0.00E+00 2.07E-02 Cs-137 <1.18E-02 0.00E+00 1.18E-02 Be-7 <9.00E-02 0.00E+00 9.00E-02 K-40 8.29E-01 3.26E-01 3.36E-01 Sample ID: 402291 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.77E-02 0.00E+00 1.77E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.17E-02 0.00E+00 1.17E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 6.94E-01 2.72E-01 2.23E-01 Sample ID: 403019 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.88E-02 0.00E+00 1.88E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.35E-02 0.00E+00 1.35E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 5.19E-01 2.17E-01 5.86E-02 Sample ID: 404497 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.36E-02 0.00E+00 1.36E-02 Cs-137 <1.98E-02 0.00E+00 1.98E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 9.00E-01 3.01E-01 6.42E-02 Sample ID: 405383 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.64E-02 0.00E+00 1.64E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 49 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 405383 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 7.84E-01 2.86E-01 2.28E-01 Sample ID: 406000 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.53E-02 0.00E+00 3.53E-02 Cs-134 <1.08E-02 0.00E+00 1.08E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 <6.09E-01 0.00E+00 6.09E-01 Sample ID: 406339 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <1.20E-02 0.00E+00 1.20E-02 Cs-137 <1.75E-02 0.00E+00 1.75E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 8.14E-01 3.26E-01 3.49E-01 Sample ID: 407528 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.21E-02 0.00E+00 3.21E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 9.14E-01 3.00E-01 6.19E-02 Sample ID: 408108 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.40E-01 0.00E+00 1.40E-01 K-40 <6.39E-01 0.00E+00 6.39E-01 Sample ID: 409421 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.48E-02 0.00E+00 1.48E-02 Cs-134 <1.65E-02 0.00E+00 1.65E-02 Cs-137 <1.61E-02 0.00E+00 1.61E-02 Be-7 <1.40E-01 0.00E+00 1.40E-01 K-40 6.05E-01 3.03E-01 3.77E-01 Sample ID: 409756 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.51E-02 0.00E+00 1.51E-02 Cs-134 <1.95E-02 0.00E+00 1.95E-02 Cs-137 <9.14E-03 0.00E+00 9.14E-03 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 7.47E-01 3.03E-01 3.11E-01 Sample ID: 410908 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.86E-02 0.00E+00 1.86E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <9.78E-02 0.00E+00 9.78E-02 K-40 9.32E-01 3.06E-01 2.14E-01 Sample ID: 411408 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.23E-02 0.00E+00 2.23E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <1.32E-02 0.00E+00 1.32E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 7.60E-01 2.83E-01 2.31E-01 Sample ID: 411732 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.33E-02 0.00E+00 1.33E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <9.77E-02 0.00E+00 9.77E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 50 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 411732 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA K-40 6.95E-01 2.49E-01 5.71E-02 Sample ID: 412195 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 <5.83E-01 0.00E+00 5.83E-01 Sample ID: 412711 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <2.15E-02 0.00E+00 2.15E-02 Be-7 <1.28E-01 0.00E+00 1.28E-01 K-40 6.15E-01 2.35E-01 5.75E-02 Sample ID: 413314 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.06E-02 0.00E+00 1.06E-02 Cs-134 <1.26E-02 0.00E+00 1.26E-02 Cs-137 <1.57E-02 0.00E+00 1.57E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 9.48E-01 3.33E-01 3.22E-01 Sample ID: 413861 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.73E-02 0.00E+00 1.73E-02 Be-7 <1.50E-01 0.00E+00 1.50E-01 K-40 8.46E-01 2.85E-01 6.03E-02 Sample ID: 415002 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.29E-02 0.00E+00 1.29E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 7.98E-01 2.69E-01 5.69E-02 Sample ID: 415373 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.67E-02 0.00E+00 1.67E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <9.78E-02 0.00E+00 9.78E-02 K-40 5.57E-01 2.69E-01 3.05E-01 Sample ID: 416366 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.34E-02 0.00E+00 1.34E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 5.71E-01 2.62E-01 2.81E-01 Sample ID: 416990 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.48E-02 0.00E+00 1.48E-02 Cs-137 <1.32E-02 0.00E+00 1.32E-02 Be-7 <8.55E-02 0.00E+00 8.55E-02 K-40 6.53E-01 2.83E-01 3.01E-01 Sample ID: 417384 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 <6.66E-01 0.00E+00 6.66E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 51 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 417775 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 7.21E-01 2.71E-01 2.10E-01 Sample ID: 418239 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.73E-02 0.00E+00 1.73E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.73E-02 0.00E+00 1.73E-02 Be-7 <9.63E-02 0.00E+00 9.63E-02 K-40 7.43E-01 2.75E-01 2.11E-01 Sample ID: 418968 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <1.84E-02 0.00E+00 1.84E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 8.02E-01 2.87E-01 2.21E-01 Sample ID: 419469 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.84E-02 0.00E+00 1.85E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.83E-02 0.00E+00 1.83E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 1.11E+00 3.40E-01 2.40E-01 Sample ID: 419996 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.72E-02 0.00E+00 1.72E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <8.43E-02 0.00E+00 8.43E-02 K-40 8.02E-01 2.87E-01 2.30E-01 Sample ID: 420550 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <1.29E-02 0.00E+00 1.29E-02 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 8.92E-01 3.00E-01 2.07E-01 Sample ID: 421387 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.70E-02 0.00E+00 1.70E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 7.27E-01 2.78E-01 2.18E-01 Sample ID: 422545 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.65E-02 0.00E+00 1.65E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <7.48E-02 0.00E+00 7.48E-02 K-40 7.81E-01 2.66E-01 5.72E-02 Sample ID: 423287 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.26E-02 0.00E+00 1.26E-02 Cs-134 <1.87E-02 0.00E+00 1.87E-02 Cs-137 <1.81E-02 0.00E+00 1.81E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 6.43E-01 2.67E-01 2.45E-01 Sample ID: 424407 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 52 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 424407 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.97E-02 0.00E+00 1.97E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 1.20E+00 3.70E-01 2.46E-01 Sample ID: 425399 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.15E-02 0.00E+00 1.15E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 8.95E-01 3.25E-01 3.07E-01 Sample ID: 425962 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.89E-02 0.00E+00 1.89E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 7.16E-01 2.58E-01 5.88E-02 Sample ID: 426334 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 4.29E-01 2.24E-01 2.18E-01 Sample ID: 427026 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.76E-02 0.00E+00 1.76E-02 Cs-134 <1.93E-02 0.00E+00 1.93E-02 Cs-137 <1.61E-02 0.00E+00 1.61E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 6.97E-01 2.71E-01 2.26E-01 Sample ID: 427685 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 7.33E-01 2.60E-01 5.84E-02 Sample ID: 428180 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.13E-02 0.00E+00 2.13E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <1.78E-02 0.00E+00 1.78E-02 Be-7 <6.09E-02 0.00E+00 6.09E-02 K-40 9.56E-01 3.01E-01 5.89E-02 Sample ID: 428862 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 9.86E-01 3.30E-01 2.55E-01 Sample ID: 429372 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <1.74E-02 0.00E+00 1.74E-02 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <1.06E-01 0.00E+00 1.06E-01 K-40 9.70E-01 3.36E-01 2.50E-01 Sample ID: 429923 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <2.10E-02 0.00E+00 2.10E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 53 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 205 Sample Point 205 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 429923 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA K-40 1.01E+00 3.10E-01 5.85E-02 Sample ID: 430544 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <2.05E-02 0.00E+00 2.05E-02 Be-7 <8.18E-02 0.00E+00 8.18E-02 K-40 7.90E-01 2.94E-01 2.22E-01 Sample ID: 431032 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.96E-02 0.00E+00 1.96E-02 Be-7 <9.74E-02 0.00E+00 9.74E-02 K-40 4.82E-01 2.65E-01 3.31E-01 Sample ID: 431439 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.25E-02 0.00E+00 1.25E-02 Cs-134 <1.08E-02 0.00E+00 1.08E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.28E-01 0.00E+00 1.28E-01 K-40 7.71E-01 2.66E-01 5.81E-02 Sample ID: 431777 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 7.01E-01 2.62E-01 6.33E-02 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 398918 Sample Dates: 12/29/2015 - 1/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.21E-02 0.00E+00 3.21E-02 Cs-134 <1.36E-02 0.00E+00 1.36E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.83E-01 0.00E+00 1.83E-01 K-40 1.10E+00 4.97E-01 5.55E-01 Sample ID: 399233 Sample Dates: 1/5/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <1.71E-01 0.00E+00 1.71E-01 K-40 5.30E-01 2.72E-01 3.07E-01 Sample ID: 399982 Sample Dates: 1/12/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.79E-02 0.00E+00 1.79E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 8.66E-01 3.44E-01 3.52E-01 Sample ID: 400335 Sample Dates: 1/19/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <4.42E-02 0.00E+00 4.42E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <3.06E-02 0.00E+00 3.06E-02 Be-7 <2.30E-01 0.00E+00 2.30E-01 K-40 1.51E+00 4.93E-01 1.02E-01 Sample ID: 400965 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.73E-02 0.00E+00 3.73E-02 Cs-134 <3.73E-02 0.00E+00 3.73E-02 Cs-137 <3.45E-02 0.00E+00 3.45E-02 Be-7 <2.12E-01 0.00E+00 2.12E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 54 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 400965 Sample Dates: 1/26/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA K-40 1.55E+00 4.97E-01 1.00E-01 Sample ID: 401328 Sample Dates: 2/2/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.70E-02 0.00E+00 1.70E-02 Cs-134 <9.73E-03 0.00E+00 9.73E-03 Cs-137 <1.40E-02 0.00E+00 1.40E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 5.68E-01 2.28E-01 5.92E-02 Sample ID: 401781 Sample Dates: 2/9/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.59E-02 0.00E+00 1.59E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 7.55E-01 2.67E-01 6.02E-02 Sample ID: 402292 Sample Dates: 2/16/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.25E-02 0.00E+00 2.25E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <8.53E-02 0.00E+00 8.53E-02 K-40 8.29E-01 2.88E-01 6.42E-02 Sample ID: 403020 Sample Dates: 2/23/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.40E-02 0.00E+00 2.40E-02 Cs-134 <1.33E-02 0.00E+00 1.33E-02 Cs-137 <2.07E-02 0.00E+00 2.07E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 8.31E-01 3.12E-01 2.65E-01 Sample ID: 404498 Sample Dates: 3/1/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.10E-02 0.00E+00 2.10E-02 Cs-134 <1.86E-02 0.00E+00 1.86E-02 Cs-137 <2.51E-02 0.00E+00 2.51E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 9.38E-01 3.22E-01 2.26E-01 Sample ID: 405384 Sample Dates: 3/8/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <9.59E-02 0.00E+00 9.59E-02 K-40 9.54E-01 3.62E-01 3.78E-01 Sample ID: 406001 Sample Dates: 3/15/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <3.61E-02 0.00E+00 3.61E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <9.14E-02 0.00E+00 9.14E-02 K-40 <6.19E-01 0.00E+00 6.19E-01 Sample ID: 406340 Sample Dates: 3/22/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.22E-02 0.00E+00 1.22E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <9.87E-02 0.00E+00 9.87E-02 K-40 1.02E+00 3.06E-01 5.75E-02 Sample ID: 407529 Sample Dates: 3/29/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.34E-02 0.00E+00 1.34E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 8.76E-01 3.16E-01 2.91E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 55 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 408109 Sample Dates: 4/5/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.02E-02 0.00E+00 1.02E-02 Cs-137 <2.04E-02 0.00E+00 2.04E-02 Be-7 <1.06E-01 0.00E+00 1.06E-01 K-40 1.12E+00 3.58E-01 2.69E-01 Sample ID: 409422 Sample Dates: 4/12/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 <5.38E-01 0.00E+00 5.38E-01 Sample ID: 409757 Sample Dates: 4/19/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.37E-02 0.00E+00 1.37E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 7.28E-01 2.71E-01 2.12E-01 Sample ID: 410909 Sample Dates: 4/26/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.20E-02 0.00E+00 2.20E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <2.05E-02 0.00E+00 2.05E-02 Be-7 <9.62E-02 0.00E+00 9.62E-02 K-40 8.41E-01 3.01E-01 2.12E-01 Sample ID: 411409 Sample Dates: 5/3/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.89E-02 0.00E+00 1.89E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 7.52E-01 3.06E-01 3.01E-01 Sample ID: 411733 Sample Dates: 5/10/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.02E-02 0.00E+00 1.02E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <1.93E-02 0.00E+00 1.93E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 9.02E-01 3.16E-01 2.36E-01 Sample ID: 412196 Sample Dates: 5/17/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.78E-02 0.00E+00 1.78E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 6.55E-01 2.66E-01 2.40E-01 Sample ID: 412712 Sample Dates: 5/24/2016 - 5/31/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.75E-02 0.00E+00 1.75E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.87E-02 0.00E+00 1.87E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 7.59E-01 2.69E-01 6.05E-02 Sample ID: 413315 Sample Dates: 5/31/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.51E-02 0.00E+00 1.51E-02 Cs-134 <7.91E-03 0.00E+00 7.91E-03 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 7.83E-01 3.05E-01 2.82E-01 Sample ID: 413862 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.18E-02 0.00E+00 2.18E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 56 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 413862 Sample Dates: 6/7/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <8.76E-02 0.00E+00 8.76E-02 K-40 7.78E-01 2.64E-01 5.70E-02 Sample ID: 415003 Sample Dates: 6/14/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 7.75E-01 2.85E-01 2.37E-01 Sample ID: 415374 Sample Dates: 6/21/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.84E-02 0.00E+00 1.84E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 <1.11E-01 0.00E+00 1.11E-01 K-40 8.56E-01 3.16E-01 3.10E-01 Sample ID: 416367 Sample Dates: 6/28/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.68E-02 0.00E+00 1.68E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 9.01E-01 2.98E-01 6.26E-02 Sample ID: 416991 Sample Dates: 7/5/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.75E-02 0.00E+00 1.75E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <1.69E-02 0.00E+00 1.69E-02 Be-7 <9.39E-02 0.00E+00 9.39E-02 K-40 9.24E-01 2.88E-01 5.56E-02 Sample ID: 417385 Sample Dates: 7/12/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <1.61E-02 0.00E+00 1.61E-02 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 9.03E-01 2.97E-01 6.12E-02 Sample ID: 417776 Sample Dates: 7/19/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 7.06E-01 2.89E-01 2.90E-01 Sample ID: 418240 Sample Dates: 7/26/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.76E-02 0.00E+00 1.76E-02 Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <1.61E-02 0.00E+00 1.61E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 8.93E-01 3.44E-01 3.51E-01 Sample ID: 418969 Sample Dates: 8/2/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.20E-02 0.00E+00 2.20E-02 Cs-134 <1.81E-02 0.00E+00 1.81E-02 Cs-137 <1.77E-02 0.00E+00 1.77E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 1.21E+00 3.48E-01 6.16E-02 Sample ID: 419470 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.74E-02 0.00E+00 2.74E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <9.50E-02 0.00E+00 9.50E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 57 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 419470 Sample Dates: 8/9/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA K-40 8.25E-01 3.01E-01 2.28E-01 Sample ID: 419997 Sample Dates: 8/16/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.88E-02 0.00E+00 1.88E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.62E-02 0.00E+00 1.62E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 9.23E-01 3.36E-01 3.31E-01 Sample ID: 420551 Sample Dates: 8/23/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <1.17E-02 0.00E+00 1.17E-02 Cs-137 <2.04E-02 0.00E+00 2.04E-02 Be-7 <9.43E-02 0.00E+00 9.43E-02 K-40 7.97E-01 3.41E-01 3.86E-01 Sample ID: 421388 Sample Dates: 8/30/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-137 <2.27E-02 0.00E+00 2.27E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 6.86E-01 3.03E-01 3.24E-01 Sample ID: 422546 Sample Dates: 9/6/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.26E-02 0.00E+00 1.26E-02 Be-7 <8.23E-02 0.00E+00 8.23E-02 K-40 8.94E-01 3.14E-01 2.34E-01 Sample ID: 423288 Sample Dates: 9/13/2016 - 9/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <2.04E-02 0.00E+00 2.04E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 7.93E-01 3.26E-01 3.42E-01 Sample ID: 424408 Sample Dates: 9/20/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <8.81E-03 0.00E+00 8.81E-03 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 1.00E+00 3.29E-01 2.61E-01 Sample ID: 425400 Sample Dates: 9/27/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <1.19E-02 0.00E+00 1.19E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 6.93E-01 2.60E-01 6.26E-02 Sample ID: 425963 Sample Dates: 10/4/2016 - 10/11/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.93E-02 0.00E+00 1.93E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 8.32E-01 2.87E-01 6.26E-02 Sample ID: 426335 Sample Dates: 10/11/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <9.54E-03 0.00E+00 9.54E-03 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 7.88E-01 2.87E-01 2.17E-01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 58 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 427027 Sample Dates: 10/18/2016 - 10/25/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.43E-02 0.00E+00 1.43E-02 Cs-134 <1.80E-02 0.00E+00 1.80E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 7.00E-01 2.52E-01 5.75E-02 Sample ID: 427686 Sample Dates: 10/25/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.28E-02 0.00E+00 1.28E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 1.09E+00 3.50E-01 2.45E-01 Sample ID: 428181 Sample Dates: 11/1/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.52E-02 0.00E+00 2.52E-02 Cs-134 <1.19E-02 0.00E+00 1.19E-02 Cs-137 <2.07E-02 0.00E+00 2.07E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 7.02E-01 3.24E-01 3.75E-01 Sample ID: 428863 Sample Dates: 11/8/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.99E-02 0.00E+00 1.99E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <2.24E-02 0.00E+00 2.24E-02 Be-7 <1.28E-01 0.00E+00 1.28E-01 K-40 9.41E-01 3.38E-01 2.87E-01 Sample ID: 429373 Sample Dates: 11/15/2016 - 11/22/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.96E-02 0.00E+00 2.96E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 5.61E-01 2.50E-01 2.35E-01 Sample ID: 429924 Sample Dates: 11/22/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <1.10E-01 0.00E+00 1.10E-01 K-40 9.41E-01 3.26E-01 2.25E-01 Sample ID: 430545 Sample Dates: 11/29/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <2.02E-02 0.00E+00 2.02E-02 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 1.13E+00 3.52E-01 2.56E-01 Sample ID: 431033 Sample Dates: 12/6/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.90E-02 0.00E+00 1.90E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 9.21E-01 3.10E-01 6.57E-02 Sample ID: 431440 Sample Dates: 12/13/2016 - 12/20/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 1.04E+00 3.32E-01 6.58E-02 Sample ID: 431778 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA I-131 <1.35E-02 0.00E+00 1.35E-02 Cs-134 <1.75E-02 0.00E+00 1.75E-02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 59 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 206 Sample Point 206 [ CONTROL - NW @ 11.3 miles ]

Sample ID: 431778 Sample Dates: 12/20/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.96E-02 0.00E+00 1.96E-02 Be-7 <1.54E-01 0.00E+00 1.54E-01 K-40 8.11E-01 2.99E-01 2.34E-01 Media Type: FISH Concentration (Activity): pCi/kg wet 700 Sample Point 700 [ INDICATOR - SSW @ 5.5 miles ]

Sample ID: 412590 Sample Dates: 5/14/2016 - 5/14/2016 FREESWIM Nuclide Activity 2 Sigma Error MDA Mn-54 <1.16E+01 0.00E+00 1.16E+01 Co-58 <1.04E+01 0.00E+00 1.04E+01 Fe-59 <2.17E+01 0.00E+00 2.17E+01 Co-60 <9.35E+00 0.00E+00 9.35E+00 Zn-65 <2.46E+01 0.00E+00 2.46E+01 Nb-95 <1.20E+01 0.00E+00 1.20E+01 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <9.67E+00 0.00E+00 9.67E+00 Cs-137 <9.88E+00 0.00E+00 9.88E+00 Be-7 <7.21E+01 0.00E+00 7.21E+01 K-40 2.38E+03 3.56E+02 1.50E+02 Ag-110M <9.79E+00 0.00E+00 9.79E+00 Sb-122 <1.25E+02 0.00E+00 1.25E+02 Sb-125 <2.35E+01 0.00E+00 2.35E+01 Sample ID: 429264 Sample Dates: 11/6/2016 - 11/6/2016 FREESWIM Nuclide Activity 2 Sigma Error MDA Mn-54 <1.55E+01 0.00E+00 1.55E+01 Co-58 <1.25E+01 0.00E+00 1.25E+01 Fe-59 <4.70E+01 0.00E+00 4.70E+01 Co-60 <2.91E+01 0.00E+00 2.91E+01 Zn-65 <5.10E+01 0.00E+00 5.10E+01 Nb-95 <2.52E+01 0.00E+00 2.52E+01 I-131 <2.00E+01 0.00E+00 2.00E+01 Cs-134 <2.46E+01 0.00E+00 2.46E+01 Cs-137 <2.42E+01 0.00E+00 2.42E+01 Be-7 <1.52E+02 0.00E+00 1.52E+02 K-40 3.78E+03 7.18E+02 4.61E+02 Ag-110M <1.56E+01 0.00E+00 1.56E+01 Sb-122 <3.53E+01 0.00E+00 3.53E+01 Sb-125 <5.00E+01 0.00E+00 5.00E+01 Sample Point 701 [ INDICATOR - SSW @ 5.5 miles ]

Sample ID: 412591 Sample Dates: 5/14/2016 - 5/14/2016 BOTMFEEDER Nuclide Activity 2 Sigma Error MDA Mn-54 <1.84E+01 0.00E+00 1.84E+01 Co-58 <1.59E+01 0.00E+00 1.59E+01 Fe-59 <5.01E+01 0.00E+00 5.01E+01 Co-60 <2.17E+01 0.00E+00 2.17E+01 Zn-65 <3.85E+01 0.00E+00 3.85E+01 Nb-95 <2.59E+01 0.00E+00 2.59E+01 I-131 <3.64E+01 0.00E+00 3.64E+01 Cs-134 <2.47E+01 0.00E+00 2.47E+01 Cs-137 <2.22E+01 0.00E+00 2.22E+01 Be-7 <1.81E+02 0.00E+00 1.81E+02 K-40 2.63E+03 5.33E+02 3.19E+02 Ag-110M <1.71E+01 0.00E+00 1.71E+01 Sb-122 <2.93E+02 0.00E+00 2.93E+02 Sb-125 <3.32E+01 0.00E+00 3.32E+01 Sample ID: 429265 Sample Dates: 11/6/2016 - 11/6/2016 BOTMFEEDER Nuclide Activity 2 Sigma Error MDA Mn-54 <3.22E+01 0.00E+00 3.22E+01 Co-58 <2.01E+01 0.00E+00 2.01E+01 Fe-59 <1.36E+01 0.00E+00 1.36E+01 Co-60 <3.75E+01 0.00E+00 3.75E+01 Zn-65 <7.70E+01 0.00E+00 7.70E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 60 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg wet 701 Sample Point 701 [ INDICATOR - SSW @ 5.5 miles ]

Sample ID: 429265 Sample Dates: 11/6/2016 - 11/6/2016 BOTMFEEDER Nuclide Activity 2 Sigma Error MDA Nb-95 <3.58E+01 0.00E+00 3.58E+01 I-131 <3.10E+01 0.00E+00 3.10E+01 Cs-134 <2.58E+01 0.00E+00 2.58E+01 Cs-137 <3.60E+01 0.00E+00 3.60E+01 Be-7 <2.07E+02 0.00E+00 2.07E+02 K-40 2.19E+03 6.38E+02 6.08E+02 Ag-110M <2.78E+01 0.00E+00 2.78E+01 Sb-122 <8.00E+01 0.00E+00 8.00E+01 Sb-125 <6.41E+01 0.00E+00 6.41E+01 Sample Point 702 [ INDICATOR - SSW @ 5.5 miles ]

Sample ID: 412592 Sample Dates: 5/14/2016 - 5/14/2016 INVERTEBRA Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.56E+01 0.00E+00 1.56E+01 Fe-59 <3.34E+01 0.00E+00 3.34E+01 Co-60 <2.11E+01 0.00E+00 2.11E+01 Zn-65 <4.10E+01 0.00E+00 4.10E+01 Nb-95 <1.47E+01 0.00E+00 1.47E+01 I-131 <2.58E+01 0.00E+00 2.58E+01 Cs-134 <1.47E+01 0.00E+00 1.47E+01 Cs-137 <2.12E+01 0.00E+00 2.12E+01 Be-7 <1.33E+02 0.00E+00 1.33E+02 K-40 3.11E+03 5.29E+02 4.76E+01 Ag-110M <1.50E+01 0.00E+00 1.50E+01 Sb-122 <2.17E+02 0.00E+00 2.17E+02 Sb-125 <3.84E+01 0.00E+00 3.84E+01 Sample ID: 429266 Sample Dates: 11/6/2016 - 11/6/2016 INVERTEBRA Nuclide Activity 2 Sigma Error MDA Mn-54 <2.25E+01 0.00E+00 2.25E+01 Co-58 <2.28E+01 0.00E+00 2.28E+01 Fe-59 <4.93E+01 0.00E+00 4.93E+01 Co-60 <1.87E+01 0.00E+00 1.87E+01 Zn-65 <9.64E+00 0.00E+00 9.64E+00 Nb-95 <1.54E+01 0.00E+00 1.54E+01 I-131 <1.59E+01 0.00E+00 1.59E+01 Cs-134 <2.09E+01 0.00E+00 2.09E+01 Cs-137 <1.95E+01 0.00E+00 1.95E+01 Be-7 <1.55E+02 0.00E+00 1.55E+02 K-40 2.87E+03 5.33E+02 5.47E+01 Ag-110M <1.86E+01 0.00E+00 1.86E+01 Sb-122 <4.41E+01 0.00E+00 4.41E+01 Sb-125 <3.11E+01 0.00E+00 3.11E+01 Sample Point 703 [ CONTROL - -- @ 0 miles ]

Sample ID: 412593 Sample Dates: 5/14/2016 - 5/14/2016 FREESWIM Nuclide Activity 2 Sigma Error MDA Mn-54 <1.17E+01 0.00E+00 1.17E+01 Co-58 <1.64E+01 0.00E+00 1.64E+01 Fe-59 <2.65E+01 0.00E+00 2.65E+01 Co-60 <1.97E+01 0.00E+00 1.97E+01 Zn-65 <3.50E+01 0.00E+00 3.50E+01 Nb-95 <1.63E+01 0.00E+00 1.63E+01 I-131 <2.29E+01 0.00E+00 2.29E+01 Cs-134 <1.01E+01 0.00E+00 1.01E+01 Cs-137 <1.40E+01 0.00E+00 1.40E+01 Be-7 <1.00E+02 0.00E+00 1.00E+02 K-40 2.79E+03 4.67E+02 2.19E+02 Ag-110M <1.19E+01 0.00E+00 1.19E+01 Sb-122 <1.94E+02 0.00E+00 1.94E+02 Sb-125 <3.19E+01 0.00E+00 3.19E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 61 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg wet 703 Sample Point 703 [ CONTROL - -- @ 0 miles ]

Sample ID: 429267 Sample Dates: 11/6/2016 - 11/6/2016 FREESWIM Nuclide Activity 2 Sigma Error MDA Mn-54 <2.65E+01 0.00E+00 2.65E+01 Co-58 <2.34E+01 0.00E+00 2.34E+01 Fe-59 <4.94E+01 0.00E+00 4.94E+01 Co-60 <2.74E+01 0.00E+00 2.74E+01 Zn-65 <5.36E+01 0.00E+00 5.36E+01 Nb-95 <2.31E+01 0.00E+00 2.31E+01 I-131 <1.91E+01 0.00E+00 1.91E+01 Cs-134 <2.58E+01 0.00E+00 2.58E+01 Cs-137 <2.83E+01 0.00E+00 2.83E+01 Be-7 <1.22E+02 0.00E+00 1.22E+02 K-40 3.19E+03 6.25E+02 6.91E+01 Ag-110M <1.64E+01 0.00E+00 1.64E+01 Sb-122 <7.52E+01 0.00E+00 7.52E+01 Sb-125 <4.92E+01 0.00E+00 4.92E+01 Sample Point 704 [ CONTROL - -- @ 0 miles ]

Sample ID: 412594 Sample Dates: 5/14/2016 - 5/14/2016 BOTMFEEDER Nuclide Activity 2 Sigma Error MDA Mn-54 <1.55E+01 0.00E+00 1.55E+01 Co-58 <1.46E+01 0.00E+00 1.46E+01 Fe-59 <3.43E+01 0.00E+00 3.43E+01 Co-60 <1.92E+01 0.00E+00 1.92E+01 Zn-65 <3.67E+01 0.00E+00 3.67E+01 Nb-95 <1.31E+01 0.00E+00 1.31E+01 I-131 <2.61E+01 0.00E+00 2.61E+01 Cs-134 <1.89E+01 0.00E+00 1.89E+01 Cs-137 <1.13E+01 0.00E+00 1.13E+01 Be-7 <1.29E+02 0.00E+00 1.29E+02 K-40 3.03E+03 4.83E+02 2.02E+02 Ag-110M <1.03E+01 0.00E+00 1.03E+01 Sb-122 <1.76E+02 0.00E+00 1.76E+02 Sb-125 <2.96E+01 0.00E+00 2.96E+01 Sample ID: 429268 Sample Dates: 11/6/2016 - 11/6/2016 BOTMFEEDER Nuclide Activity 2 Sigma Error MDA Mn-54 <1.89E+01 0.00E+00 1.89E+01 Co-58 <1.48E+01 0.00E+00 1.48E+01 Fe-59 <3.43E+01 0.00E+00 3.43E+01 Co-60 <1.69E+01 0.00E+00 1.69E+01 Zn-65 <2.95E+01 0.00E+00 2.95E+01 Nb-95 <2.50E+01 0.00E+00 2.50E+01 I-131 <2.45E+01 0.00E+00 2.45E+01 Cs-134 <3.07E+01 0.00E+00 3.07E+01 Cs-137 <2.14E+01 0.00E+00 2.14E+01 Be-7 <1.22E+02 0.00E+00 1.22E+02 K-40 2.53E+03 5.24E+02 6.23E+01 Ag-110M <1.63E+01 0.00E+00 1.63E+01 Sb-122 <6.35E+01 0.00E+00 6.35E+01 Sb-125 <5.22E+01 0.00E+00 5.22E+01 Sample Point 705 [ CONTROL - -- @ 0 miles ]

Sample ID: 412595 Sample Dates: 5/14/2016 - 5/14/2016 INVERTEBRA Nuclide Activity 2 Sigma Error MDA Mn-54 <1.94E+01 0.00E+00 1.94E+01 Co-58 <2.05E+01 0.00E+00 2.05E+01 Fe-59 <4.02E+01 0.00E+00 4.02E+01 Co-60 <5.73E+00 0.00E+00 5.73E+00 Zn-65 <4.05E+01 0.00E+00 4.05E+01 Nb-95 <2.74E+01 0.00E+00 2.74E+01 I-131 <2.90E+01 0.00E+00 2.90E+01 Cs-134 <1.52E+01 0.00E+00 1.52E+01 Cs-137 <1.04E+01 0.00E+00 1.04E+01 Be-7 <1.33E+02 0.00E+00 1.33E+02 K-40 3.87E+03 6.71E+02 3.22E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 62 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg wet 705 Sample Point 705 [ CONTROL - -- @ 0 miles ]

Sample ID: 412595 Sample Dates: 5/14/2016 - 5/14/2016 INVERTEBRA Nuclide Activity 2 Sigma Error MDA Ag-110M <1.81E+01 0.00E+00 1.81E+01 Sb-122 <2.44E+02 0.00E+00 2.44E+02 Sb-125 <4.64E+01 0.00E+00 4.64E+01 Sample ID: 429269 Sample Dates: 11/6/2016 - 11/6/2016 INVERTEBRA Nuclide Activity 2 Sigma Error MDA Mn-54 <1.05E+01 0.00E+00 1.05E+01 Co-58 <8.45E+00 0.00E+00 8.45E+00 Fe-59 <2.81E+01 0.00E+00 2.81E+01 Co-60 <1.72E+01 0.00E+00 1.72E+01 Zn-65 <2.63E+01 0.00E+00 2.63E+01 Nb-95 <1.23E+01 0.00E+00 1.23E+01 I-131 <1.59E+01 0.00E+00 1.59E+01 Cs-134 <1.79E+01 0.00E+00 1.79E+01 Cs-137 <2.23E+01 0.00E+00 2.23E+01 Be-7 <9.78E+01 0.00E+00 9.78E+01 K-40 2.27E+03 4.21E+02 4.33E+01 Ag-110M <1.40E+01 0.00E+00 1.40E+01 Sb-122 <3.54E+01 0.00E+00 3.54E+01 Sb-125 <2.49E+01 0.00E+00 2.49E+01 Sample Point 706 [ INDICATOR - -- @ 0 miles ]

Sample ID: 429139 Sample Dates: 9/11/2016 - 11/2/2016 FREESWIM Nuclide Activity 2 Sigma Error MDA Mn-54 <1.49E+01 0.00E+00 1.49E+01 Co-58 <1.29E+01 0.00E+00 1.29E+01 Fe-59 <5.80E+01 0.00E+00 5.80E+01 Co-60 <2.48E+01 0.00E+00 2.48E+01 Zn-65 <4.69E+01 0.00E+00 4.69E+01 Nb-95 <3.08E+01 0.00E+00 3.08E+01 I-131 <2.72E+02 0.00E+00 2.72E+02 Cs-134 <1.95E+01 0.00E+00 1.95E+01 Cs-137 <1.50E+01 0.00E+00 1.50E+01 Be-7 <1.85E+02 0.00E+00 1.85E+02 K-40 2.57E+03 4.85E+02 5.09E+01 Ag-110M <1.31E+01 0.00E+00 1.31E+01 Sb-122 <8.07E+04 0.00E+00 8.07E+04 Sb-125 <4.17E+01 0.00E+00 4.17E+01 Sample Point 707 [ INDICATOR - -- @ 0 miles ]

Sample ID: 429140 Sample Dates: 9/20/2016 - 11/2/2016 BOTMFEEDER Nuclide Activity 2 Sigma Error MDA Mn-54 <1.39E+01 0.00E+00 1.39E+01 Co-58 <2.08E+01 0.00E+00 2.08E+01 Fe-59 <7.32E+01 0.00E+00 7.32E+01 Co-60 <2.11E+01 0.00E+00 2.11E+01 Zn-65 <4.32E+01 0.00E+00 4.32E+01 Nb-95 <2.19E+01 0.00E+00 2.19E+01 I-131 <1.34E+02 0.00E+00 1.34E+02 Cs-134 <1.69E+01 0.00E+00 1.69E+01 Cs-137 <1.68E+01 0.00E+00 1.68E+01 Be-7 <1.77E+02 0.00E+00 1.77E+02 K-40 2.83E+03 4.99E+02 4.71E+01 Ag-110M <1.37E+01 0.00E+00 1.37E+01 Sb-122 <3.21E+04 0.00E+00 3.21E+04 Sb-125 <4.41E+01 0.00E+00 4.41E+01 Sample Point 708 [ INDICATOR - -- @ 0 miles ]

Sample ID: 429141 Sample Dates: 9/11/2016 - 11/2/2016 INVERTEBRA Nuclide Activity 2 Sigma Error MDA Mn-54 <1.96E+01 0.00E+00 1.96E+01 Co-58 <2.49E+01 0.00E+00 2.49E+01 Fe-59 <6.86E+01 0.00E+00 6.86E+01 Co-60 <2.06E+01 0.00E+00 2.06E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 63 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg wet 708 Sample Point 708 [ INDICATOR - -- @ 0 miles ]

Sample ID: 429141 Sample Dates: 9/11/2016 - 11/2/2016 INVERTEBRA Nuclide Activity 2 Sigma Error MDA Zn-65 <4.33E+01 0.00E+00 4.33E+01 Nb-95 <2.83E+01 0.00E+00 2.83E+01 I-131 <2.62E+02 0.00E+00 2.62E+02 Cs-134 <2.11E+01 0.00E+00 2.11E+01 Cs-137 <2.09E+01 0.00E+00 2.09E+01 Be-7 <2.06E+02 0.00E+00 2.06E+02 K-40 2.47E+03 5.20E+02 3.87E+02 Ag-110M <1.72E+01 0.00E+00 1.72E+01 Sb-122 <6.99E+04 0.00E+00 6.99E+04 Sb-125 <4.98E+01 0.00E+00 4.98E+01 Media Type: GROUND WATER Concentration (Activity): pCi/l 404 Sample Point 404 [ INDICATOR - SW @ 0.16 miles ]

Sample ID: 405347 Sample Dates: 3/2/2016 - 3/2/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.0E+01 0.00E+00 2.79E+02 Sample ID: 415196 Sample Dates: 6/9/2016 - 6/9/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.72E+00 0.00E+00 9.72E+00 Co-58 <6.46E+00 0.00E+00 6.46E+00 Fe-59 <1.72E+01 0.00E+00 1.72E+01 Co-60 <5.91E+00 0.00E+00 5.91E+00 Zn-65 <1.87E+01 0.00E+00 1.87E+01 Zr-95 <1.69E+01 0.00E+00 1.69E+01 Nb-95 <9.94E+00 0.00E+00 9.94E+00 I-131 <1.48E+01 0.00E+00 1.48E+01 Cs-134 <9.19E+00 0.00E+00 9.19E+00 Cs-137 <9.31E+00 0.00E+00 9.31E+00 La-140 <2.27E+02 0.00E+00 2.27E+02 Ba-140 <3.88E+01 0.00E+00 3.88E+01 Total-Gam 0.00E+00 H3GW <1.34E+02 0.00E+00 2.59E+02 Sample ID: 427899 Sample Dates: 9/15/2016 - 9/15/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-5.1E+01 0.00E+00 2.25E+02 Sample ID: 431547 Sample Dates: 12/8/2016 - 12/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.75E+00 0.00E+00 8.75E+00 Co-58 <8.20E+00 0.00E+00 8.20E+00 Fe-59 <1.10E+01 0.00E+00 1.10E+01 Co-60 <7.11E+00 0.00E+00 7.11E+00 Zn-65 <8.94E+00 0.00E+00 8.94E+00 Zr-95 <1.45E+01 0.00E+00 1.45E+01 Nb-95 <7.98E+00 0.00E+00 7.98E+00 I-131 <1.31E+01 0.00E+00 1.31E+01 Cs-134 <5.81E+00 0.00E+00 5.81E+00 Cs-137 <7.42E+00 0.00E+00 7.41E+00 La-140 <9.87E+01 0.00E+00 9.87E+01 Ba-140 <2.82E+01 0.00E+00 2.82E+01 Total-Gam 0.00E+00 H3GW <5.86E+01 0.00E+00 2.52E+02 Sample Point 407 [ INDICATOR - ENE @ 0.06 miles ]

Sample ID: 406737 Sample Dates: 3/9/2016 - 3/9/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.4E+02 0.00E+00 2.82E+02 Sample ID: 415664 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.06E+01 0.00E+00 1.06E+01 Co-58 <9.78E+00 0.00E+00 9.78E+00 Fe-59 <1.82E+01 0.00E+00 1.82E+01 Co-60 <8.15E+00 0.00E+00 8.15E+00 Zn-65 <1.33E+01 0.00E+00 1.33E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 64 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 407 Sample Point 407 [ INDICATOR - ENE @ 0.06 miles ]

Sample ID: 415664 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <1.45E+01 0.00E+00 1.45E+01 Nb-95 <9.34E+00 0.00E+00 9.34E+00 I-131 <1.67E+01 0.00E+00 1.67E+01 Cs-134 <7.80E+00 0.00E+00 7.80E+00 Cs-137 <9.84E+00 0.00E+00 9.84E+00 La-140 <2.24E+02 0.00E+00 2.24E+02 Ba-140 <4.86E+01 0.00E+00 4.86E+01 Total-Gam 0.00E+00 H3GW <7.78E+01 0.00E+00 2.65E+02 Sample ID: 427928 Sample Dates: 9/19/2016 - 9/19/2016 Nuclide Activity 2 Sigma Error MDA H3GW <2.03E+02 0.00E+00 2.24E+02 Sample ID: 432296 Sample Dates: 12/15/2016 - 12/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <6.91E+00 0.00E+00 6.91E+00 Co-58 <8.31E+00 0.00E+00 8.31E+00 Fe-59 <1.19E+01 0.00E+00 1.19E+01 Co-60 <8.43E+00 0.00E+00 8.43E+00 Zn-65 <1.38E+01 0.00E+00 1.38E+01 Zr-95 <1.32E+01 0.00E+00 1.32E+01 Nb-95 <7.43E+00 0.00E+00 7.43E+00 I-131 <2.04E+01 0.00E+00 2.04E+01 Cs-134 <6.06E+00 0.00E+00 6.06E+00 Cs-137 <7.15E+00 0.00E+00 7.15E+00 La-140 <7.37E+02 0.00E+00 7.37E+02 Ba-140 <4.19E+01 0.00E+00 4.19E+01 Total-Gam 0.00E+00 H3GW <1.93E+02 0.00E+00 2.56E+02 Sample Point 409 [ INDICATOR - NE @ 0.65 miles ]

Sample ID: 405770 Sample Dates: 3/4/2016 - 3/4/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.8E+02 0.00E+00 2.57E+02 Sample ID: 415144 Sample Dates: 6/8/2016 - 6/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.79E+00 0.00E+00 8.79E+00 Co-58 <9.60E+00 0.00E+00 9.60E+00 Fe-59 <1.77E+01 0.00E+00 1.77E+01 Co-60 <6.82E+00 0.00E+00 6.82E+00 Zn-65 <2.36E+01 0.00E+00 2.36E+01 Zr-95 <1.08E+01 0.00E+00 1.08E+01 Nb-95 <7.59E+00 0.00E+00 7.59E+00 I-131 <1.23E+01 0.00E+00 1.23E+01 Cs-134 <8.00E+00 0.00E+00 8.00E+00 Cs-137 <9.84E+00 0.00E+00 9.84E+00 La-140 <6.04E+01 0.00E+00 6.04E+01 Ba-140 <4.37E+01 0.00E+00 4.37E+01 Total-Gam 0.00E+00 H3GW <-3.0E+02 0.00E+00 2.64E+02 Sample ID: 427606 Sample Dates: 9/14/2016 - 9/14/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.8E+02 0.00E+00 2.38E+02 Sample ID: 430993 Sample Dates: 12/1/2016 - 12/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.20E+00 0.00E+00 9.20E+00 Co-58 <8.91E+00 0.00E+00 8.91E+00 Fe-59 <1.54E+01 0.00E+00 1.54E+01 Co-60 <7.29E+00 0.00E+00 7.29E+00 Zn-65 <1.63E+01 0.00E+00 1.63E+01 Zr-95 <1.29E+01 0.00E+00 1.29E+01 Nb-95 <8.65E+00 0.00E+00 8.65E+00 I-131 <1.37E+01 0.00E+00 1.37E+01 Cs-134 <6.51E+00 0.00E+00 6.51E+00 Cs-137 <6.86E+00 0.00E+00 6.86E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 65 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 409 Sample Point 409 [ INDICATOR - NE @ 0.65 miles ]

Sample ID: 430993 Sample Dates: 12/1/2016 - 12/1/2016 Nuclide Activity 2 Sigma Error MDA La-140 <4.88E+01 0.00E+00 4.88E+01 Ba-140 <3.16E+01 0.00E+00 3.16E+01 Total-Gam 0.00E+00 H3GW <5.82E+01 0.00E+00 2.46E+02 Sample Point 410 [ INDICATOR - NE @ 0.65 miles ]

Sample ID: 405771 Sample Dates: 3/4/2016 - 3/4/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.5E+02 0.00E+00 2.57E+02 Sample ID: 415145 Sample Dates: 6/8/2016 - 6/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.05E+00 0.00E+00 7.05E+00 Co-58 <8.65E+00 0.00E+00 8.65E+00 Fe-59 <1.37E+01 0.00E+00 1.37E+01 Co-60 <9.73E+00 0.00E+00 9.74E+00 Zn-65 <1.32E+01 0.00E+00 1.32E+01 Zr-95 <1.12E+01 0.00E+00 1.12E+01 Nb-95 <1.13E+01 0.00E+00 1.13E+01 I-131 <1.31E+01 0.00E+00 1.31E+01 Cs-134 <9.71E+00 0.00E+00 9.71E+00 Cs-137 <8.14E+00 0.00E+00 8.14E+00 La-140 <8.68E+01 0.00E+00 8.68E+01 Ba-140 <4.21E+01 0.00E+00 4.21E+01 Total-Gam 0.00E+00 H3GW <-1.5E+02 0.00E+00 2.63E+02 Sample ID: 427607 Sample Dates: 9/14/2016 - 9/14/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.3E+02 0.00E+00 2.38E+02 Sample ID: 430994 Sample Dates: 12/1/2016 - 12/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.15E+00 0.00E+00 7.15E+00 Co-58 <7.04E+00 0.00E+00 7.04E+00 Fe-59 <1.81E+01 0.00E+00 1.81E+01 Co-60 <7.11E+00 0.00E+00 7.11E+00 Zn-65 <1.63E+01 0.00E+00 1.63E+01 Zr-95 <1.09E+01 0.00E+00 1.09E+01 Nb-95 <6.06E+00 0.00E+00 6.06E+00 I-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <8.22E+00 0.00E+00 8.22E+00 Cs-137 <7.93E+00 0.00E+00 7.93E+00 La-140 <9.94E+01 0.00E+00 9.94E+01 Ba-140 <3.63E+01 0.00E+00 3.63E+01 Total-Gam 0.00E+00 H3GW <1.16E+02 0.00E+00 2.49E+02 Sample Point 418 [ INDICATOR - -- @ 0 miles ]

Sample ID: 405774 Sample Dates: 3/3/2016 - 3/3/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.1E+02 0.00E+00 2.56E+02 Sample ID: 415197 Sample Dates: 6/9/2016 - 6/9/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.12E+00 0.00E+00 9.12E+00 Co-58 <8.39E+00 0.00E+00 8.39E+00 Fe-59 <1.60E+01 0.00E+00 1.60E+01 Co-60 <6.82E+00 0.00E+00 6.82E+00 Zn-65 <1.32E+01 0.00E+00 1.32E+01 Zr-95 <1.55E+01 0.00E+00 1.55E+01 Nb-95 <1.12E+01 0.00E+00 1.12E+01 I-131 <1.57E+01 0.00E+00 1.57E+01 Cs-134 <8.99E+00 0.00E+00 8.99E+00 Cs-137 <1.01E+01 0.00E+00 1.01E+01 La-140 <1.05E+02 0.00E+00 1.05E+02 Ba-140 <3.73E+01 0.00E+00 3.73E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 66 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 418 Sample Point 418 [ INDICATOR - -- @ 0 miles ]

Sample ID: 415197 Sample Dates: 6/9/2016 - 6/9/2016 Nuclide Activity 2 Sigma Error MDA H3GW <1.68E+01 0.00E+00 2.81E+02 Sample ID: 427929 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3GW <1.67E+02 0.00E+00 2.25E+02 Sample ID: 431198 Sample Dates: 12/5/2016 - 12/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.16E+00 0.00E+00 7.16E+00 Co-58 <8.00E+00 0.00E+00 8.00E+00 Fe-59 <1.50E+01 0.00E+00 1.50E+01 Co-60 <5.95E+00 0.00E+00 5.95E+00 Zn-65 <1.55E+01 0.00E+00 1.55E+01 Zr-95 <1.27E+01 0.00E+00 1.27E+01 Nb-95 <7.84E+00 0.00E+00 7.84E+00 I-131 <1.44E+01 0.00E+00 1.44E+01 Cs-134 <7.22E+00 0.00E+00 7.22E+00 Cs-137 <8.41E+00 0.00E+00 8.41E+00 La-140 <1.48E+02 0.00E+00 1.48E+02 Ba-140 <3.19E+01 0.00E+00 3.19E+01 Total-Gam 0.00E+00 H3GW <5.30E+00 0.00E+00 2.52E+02 Sample Point 423 [ INDICATOR - -- @ 0 miles ]

Sample ID: 405778 Sample Dates: 3/7/2016 - 3/7/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-4.5E+01 0.00E+00 2.69E+02 Sample ID: 415198 Sample Dates: 6/9/2016 - 6/9/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.03E+01 0.00E+00 1.03E+01 Co-58 <8.82E+00 0.00E+00 8.82E+00 Fe-59 <1.73E+01 0.00E+00 1.73E+01 Co-60 <5.34E+00 0.00E+00 5.34E+00 Zn-65 <1.68E+01 0.00E+00 1.68E+01 Zr-95 <1.26E+01 0.00E+00 1.26E+01 Nb-95 <1.15E+01 0.00E+00 1.15E+01 I-131 <1.39E+01 0.00E+00 1.39E+01 Cs-134 <8.42E+00 0.00E+00 8.42E+00 Cs-137 <7.49E+00 0.00E+00 7.49E+00 La-140 <1.40E+02 0.00E+00 1.40E+02 Ba-140 <3.17E+01 0.00E+00 3.17E+01 Total-Gam 0.00E+00 H3GW <4.16E+01 0.00E+00 2.60E+02 Sample ID: 427608 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-5.0E+01 0.00E+00 2.38E+02 Sample ID: 431199 Sample Dates: 12/5/2016 - 12/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.48E+00 0.00E+00 9.47E+00 Co-58 <7.42E+00 0.00E+00 7.42E+00 Fe-59 <1.30E+01 0.00E+00 1.30E+01 Co-60 <8.42E+00 0.00E+00 8.42E+00 Zn-65 <1.37E+01 0.00E+00 1.37E+01 Zr-95 <1.27E+01 0.00E+00 1.27E+01 Nb-95 <8.18E+00 0.00E+00 8.18E+00 I-131 <1.56E+01 0.00E+00 1.56E+01 Cs-134 <7.30E+00 0.00E+00 7.29E+00 Cs-137 <6.86E+00 0.00E+00 6.87E+00 La-140 <1.15E+02 0.00E+00 1.15E+02 Ba-140 <2.89E+01 0.00E+00 2.89E+01 Total-Gam 0.00E+00 H3GW <1.02E+02 0.00E+00 2.43E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 67 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 424 Sample Point 424 [ INDICATOR - -- @ 0 miles ]

Sample ID: 405779 Sample Dates: 3/7/2016 - 3/7/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.4E+02 0.00E+00 2.68E+02 Sample ID: 415199 Sample Dates: 6/9/2016 - 6/9/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.24E+00 0.00E+00 8.24E+00 Co-58 <8.42E+00 0.00E+00 8.42E+00 Fe-59 <2.03E+01 0.00E+00 2.03E+01 Co-60 <8.72E+00 0.00E+00 8.73E+00 Zn-65 <1.20E+01 0.00E+00 1.20E+01 Zr-95 <1.60E+01 0.00E+00 1.60E+01 Nb-95 <1.32E+01 0.00E+00 1.32E+01 I-131 <2.23E+01 0.00E+00 2.23E+01 Cs-134 <8.65E+00 0.00E+00 8.65E+00 Cs-137 <7.14E+00 0.00E+00 7.14E+00 La-140 <1.09E+03 0.00E+00 1.09E+03 Ba-140 <4.84E+01 0.00E+00 4.84E+01 Total-Gam 0.00E+00 H3GW <-1.2E+02 0.00E+00 2.59E+02 Sample ID: 427609 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.4E+02 0.00E+00 2.37E+02 Sample ID: 431200 Sample Dates: 12/5/2016 - 12/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.46E+00 0.00E+00 7.46E+00 Co-58 <8.30E+00 0.00E+00 8.30E+00 Fe-59 <1.83E+01 0.00E+00 1.83E+01 Co-60 <9.32E+00 0.00E+00 9.32E+00 Zn-65 <1.87E+01 0.00E+00 1.87E+01 Zr-95 <1.22E+01 0.00E+00 1.22E+01 Nb-95 <1.05E+01 0.00E+00 1.05E+01 I-131 <1.55E+01 0.00E+00 1.55E+01 Cs-134 <7.03E+00 0.00E+00 7.03E+00 Cs-137 <7.42E+00 0.00E+00 7.42E+00 La-140 <1.16E+02 0.00E+00 1.16E+02 Ba-140 <3.83E+01 0.00E+00 3.83E+01 Total-Gam 0.00E+00 H3GW <1.22E+02 0.00E+00 2.46E+02 Sample Point 426 [ INDICATOR - -- @ 0 miles ]

Sample ID: 405782 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-6.3E+01 0.00E+00 2.69E+02 Sample ID: 415947 Sample Dates: 6/22/2016 - 6/22/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.79E+00 0.00E+00 7.79E+00 Co-58 <8.29E+00 0.00E+00 8.29E+00 Fe-59 <1.76E+01 0.00E+00 1.76E+01 Co-60 <9.02E+00 0.00E+00 9.02E+00 Zn-65 <1.86E+01 0.00E+00 1.86E+01 Zr-95 <1.73E+01 0.00E+00 1.73E+01 Nb-95 <7.55E+00 0.00E+00 7.55E+00 I-131 <1.22E+01 0.00E+00 1.22E+01 Cs-134 <7.56E+00 0.00E+00 7.56E+00 Cs-137 <7.49E+00 0.00E+00 7.49E+00 La-140 <8.79E+01 0.00E+00 8.79E+01 Ba-140 <3.87E+01 0.00E+00 3.87E+01 Total-Gam 0.00E+00 H3GW <4.16E+01 0.00E+00 2.49E+02 Sample ID: 428068 Sample Dates: 9/28/2016 - 9/28/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-3.8E+01 0.00E+00 2.47E+02 Sample ID: 431554 Sample Dates: 12/7/2016 - 12/7/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.75E+00 0.00E+00 8.75E+00 Co-58 <8.73E+00 0.00E+00 8.73E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 68 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 426 Sample Point 426 [ INDICATOR - -- @ 0 miles ]

Sample ID: 431554 Sample Dates: 12/7/2016 - 12/7/2016 Nuclide Activity 2 Sigma Error MDA Fe-59 <1.64E+01 0.00E+00 1.64E+01 Co-60 <7.87E+00 0.00E+00 7.87E+00 Zn-65 <2.06E+01 0.00E+00 2.06E+01 Zr-95 <1.25E+01 0.00E+00 1.25E+01 Nb-95 <7.98E+00 0.00E+00 7.98E+00 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <7.39E+00 0.00E+00 7.39E+00 Cs-137 <7.68E+00 0.00E+00 7.67E+00 La-140 <8.05E+01 0.00E+00 8.05E+01 Ba-140 <3.75E+01 0.00E+00 3.75E+01 Total-Gam 0.00E+00 H3GW <2.16E+02 0.00E+00 2.29E+02 Sample Point 429 [ INDICATOR - -- @ 0 miles ]

Sample ID: 405776 Sample Dates: 3/3/2016 - 3/3/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-9.5E+01 0.00E+00 2.58E+02 Sample ID: 415663 Sample Dates: 6/13/2016 - 6/13/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.16E+01 0.00E+00 1.16E+01 Co-58 <9.86E+00 0.00E+00 9.86E+00 Fe-59 <1.94E+01 0.00E+00 1.94E+01 Co-60 <8.36E+00 0.00E+00 8.36E+00 Zn-65 <1.68E+01 0.00E+00 1.68E+01 Zr-95 <1.89E+01 0.00E+00 1.89E+01 Nb-95 <1.62E+01 0.00E+00 1.62E+01 I-131 <1.92E+01 0.00E+00 1.92E+01 Cs-134 <1.09E+01 0.00E+00 1.09E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <3.50E+02 0.00E+00 3.50E+02 Ba-140 <4.98E+01 0.00E+00 4.98E+01 Total-Gam 0.00E+00 H3GW <-2.2E+02 0.00E+00 2.65E+02 Sample ID: 427611 Sample Dates: 9/14/2016 - 9/14/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-6.0E+01 0.00E+00 2.36E+02 Sample ID: 431203 Sample Dates: 12/5/2016 - 12/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.03E+00 0.00E+00 9.03E+00 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <1.76E+01 0.00E+00 1.76E+01 Co-60 <9.70E+00 0.00E+00 9.70E+00 Zn-65 <1.47E+01 0.00E+00 1.47E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <1.04E+01 0.00E+00 1.04E+01 I-131 <1.70E+01 0.00E+00 1.70E+01 Cs-134 <6.92E+00 0.00E+00 6.93E+00 Cs-137 <9.08E+00 0.00E+00 9.08E+00 La-140 <2.71E+02 0.00E+00 2.71E+02 Ba-140 <3.98E+01 0.00E+00 3.98E+01 Total-Gam 0.00E+00 H3GW <1.53E+02 0.00E+00 2.43E+02 Sample Point 612 [ INDICATOR - -- @ 0 miles ]

Sample ID: 406738 Sample Dates: 3/9/2016 - 3/9/2016 Nuclide Activity 2 Sigma Error MDA H3GW <-1.5E+02 0.00E+00 2.79E+02 Sample ID: 416811 Sample Dates: 6/23/2016 - 6/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.79E+00 0.00E+00 7.79E+00 Co-58 <8.30E+00 0.00E+00 8.30E+00 Fe-59 <1.67E+01 0.00E+00 1.67E+01 Co-60 <8.36E+00 0.00E+00 8.36E+00 Zn-65 <1.67E+01 0.00E+00 1.67E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 69 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 612 Sample Point 612 [ INDICATOR - -- @ 0 miles ]

Sample ID: 416811 Sample Dates: 6/23/2016 - 6/23/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <1.78E+01 0.00E+00 1.78E+01 Nb-95 <1.20E+01 0.00E+00 1.20E+01 I-131 <1.37E+01 0.00E+00 1.37E+01 Cs-134 <8.60E+00 0.00E+00 8.60E+00 Cs-137 <7.49E+00 0.00E+00 7.49E+00 La-140 <6.62E+01 0.00E+00 6.62E+01 Ba-140 <4.08E+01 0.00E+00 4.08E+01 Total-Gam 0.00E+00 H3GW <4.89E+01 0.00E+00 2.52E+02 Sample ID: 427930 Sample Dates: 9/19/2016 - 9/19/2016 Nuclide Activity 2 Sigma Error MDA H3GW <1.58E+02 0.00E+00 2.24E+02 Sample ID: 432297 Sample Dates: 12/15/2016 - 12/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.22E+00 0.00E+00 7.22E+00 Co-58 <7.37E+00 0.00E+00 7.37E+00 Fe-59 <1.69E+01 0.00E+00 1.69E+01 Co-60 <8.93E+00 0.00E+00 8.93E+00 Zn-65 <1.28E+01 0.00E+00 1.28E+01 Zr-95 <1.21E+01 0.00E+00 1.21E+01 Nb-95 <8.49E+00 0.00E+00 8.49E+00 I-131 <1.85E+01 0.00E+00 1.85E+01 Cs-134 <7.93E+00 0.00E+00 7.93E+00 Cs-137 <8.64E+00 0.00E+00 8.64E+00 La-140 <8.46E+02 0.00E+00 8.46E+02 Ba-140 <4.80E+01 0.00E+00 4.81E+01 Total-Gam 0.00E+00 H3GW <1.22E+02 0.00E+00 2.55E+02 Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg dry 500 Sample Point 500 [ INDICATOR - SSW @ 5 miles ]

Sample ID: 411586 Sample Dates: 5/2/2016 - 5/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.32E+01 0.00E+00 1.32E+01 Co-58 <9.42E+00 0.00E+00 9.42E+00 Fe-59 <1.99E+01 0.00E+00 1.99E+01 Co-60 <1.18E+01 0.00E+00 1.18E+01 Zn-65 <2.54E+01 0.00E+00 2.54E+01 Zr-95 <1.93E+01 0.00E+00 1.93E+01 Nb-95 <1.33E+01 0.00E+00 1.33E+01 I-131 <1.54E+01 0.00E+00 1.54E+01 Cs-134 <1.59E+01 0.00E+00 1.59E+01 Cs-137 <1.15E+01 0.00E+00 1.15E+01 Be-7 <9.81E+01 0.00E+00 9.81E+01 K-40 1.31E+03 2.63E+02 2.98E+01 Co-57 <8.87E+00 0.00E+00 8.87E+00 Mo-99 <6.46E+02 0.00E+00 6.46E+02 Ag-110M <1.19E+01 0.00E+00 1.19E+01 Sb-122 <8.90E+01 0.00E+00 8.90E+01 Sb-125 <2.93E+01 0.00E+00 2.93E+01 Sample ID: 428564 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.10E+00 0.00E+00 8.10E+00 Co-58 <1.20E+01 0.00E+00 1.20E+01 Fe-59 <1.95E+01 0.00E+00 1.95E+01 Co-60 <1.17E+01 0.00E+00 1.17E+01 Zn-65 <2.06E+01 0.00E+00 2.06E+01 Zr-95 <1.75E+01 0.00E+00 1.75E+01 Nb-95 <1.16E+01 0.00E+00 1.16E+01 I-131 <1.26E+01 0.00E+00 1.26E+01 Cs-134 <1.20E+01 0.00E+00 1.20E+01 Cs-137 <8.38E+00 0.00E+00 8.38E+00 Be-7 <9.57E+01 0.00E+00 9.57E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 70 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg dry 500 Sample Point 500 [ INDICATOR - SSW @ 5 miles ]

Sample ID: 428564 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA K-40 1.20E+03 2.37E+02 1.19E+02 Co-57 <1.04E+01 0.00E+00 1.04E+01 Mo-99 <3.27E+02 0.00E+00 3.27E+02 Ag-110M <9.32E+00 0.00E+00 9.32E+00 Sb-122 <4.64E+01 0.00E+00 4.64E+01 Sb-125 <2.47E+01 0.00E+00 2.47E+01 Sample Point 501 [ INDICATOR - -- @ 0 miles ]

Sample ID: 413272 Sample Dates: 5/12/2016 - 5/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.75E+01 0.00E+00 8.75E+01 Co-58 <7.28E+01 0.00E+00 7.28E+01 Fe-59 <1.74E+02 0.00E+00 1.74E+02 Co-60 <5.92E+01 0.00E+00 5.92E+01 Zn-65 <1.25E+02 0.00E+00 1.25E+02 Zr-95 <1.29E+02 0.00E+00 1.29E+02 Nb-95 <1.10E+02 0.00E+00 1.10E+02 I-131 <3.53E+02 0.00E+00 3.53E+02 Cs-134 <9.25E+01 0.00E+00 9.25E+01 Cs-137 <1.31E+02 0.00E+00 1.31E+02 Be-7 1.58E+03 6.24E+02 7.37E+02 K-40 1.04E+04 1.87E+03 6.76E+02 Co-57 <5.33E+01 0.00E+00 5.33E+01 Mo-99 <9.84E+04 0.00E+00 9.84E+04 Ag-110M <5.87E+01 0.00E+00 5.87E+01 Sb-122 <1.83E+04 0.00E+00 1.83E+04 Sb-125 <1.58E+02 0.00E+00 1.58E+02 Fe-55 <2.38E+05 0.00E+00 2.38E+05 Sr-89 <6.50E+01 0.00E+00 6.50E+01 Sr-90 <5.82E+01 0.00E+00 5.82E+01 Sample ID: 429796 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <5.75E+01 0.00E+00 5.75E+01 Co-58 <4.24E+01 0.00E+00 4.24E+01 Fe-59 <1.23E+02 0.00E+00 1.23E+02 Co-60 <4.29E+01 0.00E+00 4.29E+01 Zn-65 <1.07E+02 0.00E+00 1.07E+02 Zr-95 <8.77E+01 0.00E+00 8.77E+01 Nb-95 <6.56E+01 0.00E+00 6.56E+01 I-131 <1.05E+02 0.00E+00 1.05E+02 Cs-134 <6.36E+01 0.00E+00 6.36E+01 Cs-137 1.32E+02 5.81E+01 7.77E+01 Be-7 <5.00E+02 0.00E+00 5.00E+02 K-40 9.84E+03 1.52E+03 6.58E+02 Co-57 <3.86E+01 0.00E+00 3.86E+01 Mo-99 <9.43E+03 0.00E+00 9.43E+03 Ag-110M <4.52E+01 0.00E+00 4.52E+01 Sb-122 <1.36E+03 0.00E+00 1.36E+03 Sb-125 <1.16E+02 0.00E+00 1.16E+02 Fe-55 <1.74E+05 0.00E+00 1.74E+05 Ni-63 <4.49E+04 0.00E+00 4.49E+04 Sr-89 <5.84E+01 0.00E+00 5.84E+01 Sr-90 <4.89E+01 0.00E+00 4.89E+01 Media Type: SURFACE WATER Concentration (Activity): pCi/l 400 Sample Point 400 [ CONTROL - NE @ 0.6 miles ]

Sample ID: 399234 Sample Dates: 1/5/2016 - 2/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.65E+00 0.00E+00 2.65E+00 Co-58 <2.64E+00 0.00E+00 2.64E+00 Fe-59 <6.29E+00 0.00E+00 6.29E+00 Co-60 <3.00E+00 0.00E+00 3.00E+00 Zn-65 <5.88E+00 0.00E+00 5.88E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 71 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 400 Sample Point 400 [ CONTROL - NE @ 0.6 miles ]

Sample ID: 399234 Sample Dates: 1/5/2016 - 2/1/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <4.40E+00 0.00E+00 4.40E+00 Nb-95 <3.97E+00 0.00E+00 3.97E+00 I-131 <1.06E+01 0.00E+00 1.06E+01 Cs-134 <3.31E+00 0.00E+00 3.31E+00 Cs-137 <3.09E+00 0.00E+00 3.09E+00 BaLa-140 <5.44E+00 0.00E+00 5.44E+00 H3SW <-7.4E+01 0.00E+00 1.95E+02 Sample ID: 401329 Sample Dates: 2/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.68E+00 0.00E+00 2.68E+00 Co-58 <3.57E+00 0.00E+00 3.57E+00 Fe-59 <7.17E+00 0.00E+00 7.17E+00 Co-60 <2.68E+00 0.00E+00 2.68E+00 Zn-65 <5.49E+00 0.00E+00 5.49E+00 Zr-95 <6.07E+00 0.00E+00 6.07E+00 Nb-95 <3.58E+00 0.00E+00 3.58E+00 I-131 <1.12E+01 0.00E+00 1.12E+01 Cs-134 <3.62E+00 0.00E+00 3.62E+00 Cs-137 <3.58E+00 0.00E+00 3.58E+00 BaLa-140 <8.13E+00 0.00E+00 8.13E+00 H3SW <5.84E+00 0.00E+00 1.89E+02 Sample ID: 407530 Sample Dates: 3/1/2016 - 4/4/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.04E+00 0.00E+00 2.04E+00 Co-58 <2.92E+00 0.00E+00 2.92E+00 Fe-59 <5.22E+00 0.00E+00 5.22E+00 Co-60 <2.14E+00 0.00E+00 2.14E+00 Zn-65 <5.50E+00 0.00E+00 5.50E+00 Zr-95 <2.50E+00 0.00E+00 2.50E+00 Nb-95 <3.08E+00 0.00E+00 3.08E+00 I-131 <1.14E+01 0.00E+00 1.14E+01 Cs-134 <2.41E+00 0.00E+00 2.41E+00 Cs-137 <2.41E+00 0.00E+00 2.41E+00 BaLa-140 <5.19E+00 0.00E+00 5.19E+00 H3SW <4.07E+01 0.00E+00 1.89E+02 Sample ID: 410910 Sample Dates: 4/4/2016 - 5/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <3.99E+00 0.00E+00 3.99E+00 Co-58 <4.22E+00 0.00E+00 4.22E+00 Fe-59 <1.11E+01 0.00E+00 1.11E+01 Co-60 <5.35E+00 0.00E+00 5.35E+00 Zn-65 <9.38E+00 0.00E+00 9.38E+00 Zr-95 <9.78E+00 0.00E+00 9.78E+00 Nb-95 <4.49E+00 0.00E+00 4.49E+00 I-131 <9.25E+00 0.00E+00 9.25E+00 Cs-134 <3.74E+00 0.00E+00 3.74E+00 Cs-137 <3.48E+00 0.00E+00 3.48E+00 BaLa-140 <9.65E+00 0.00E+00 9.65E+00 H3SW <-3.8E+00 0.00E+00 1.96E+02 Sample ID: 412713 Sample Dates: 5/2/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.80E+00 0.00E+00 1.80E+00 Co-58 <1.98E+00 0.00E+00 1.98E+00 Fe-59 <4.84E+00 0.00E+00 4.84E+00 Co-60 <1.99E+00 0.00E+00 1.99E+00 Zn-65 <4.00E+00 0.00E+00 4.00E+00 Zr-95 <3.60E+00 0.00E+00 3.60E+00 Nb-95 <3.27E+00 0.00E+00 3.27E+00 I-131 <1.04E+01 0.00E+00 1.04E+01 Cs-134 <1.78E+00 0.00E+00 1.78E+00 Cs-137 <2.01E+00 0.00E+00 2.01E+00 BaLa-140 <5.78E+00 0.00E+00 5.78E+00 H3SW <-8.1E+01 0.00E+00 2.04E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 72 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 400 Sample Point 400 [ CONTROL - NE @ 0.6 miles ]

Sample ID: 415375 Sample Dates: 6/1/2016 - 7/4/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.76E+00 0.00E+00 2.76E+00 Co-58 <3.03E+00 0.00E+00 3.03E+00 Fe-59 <6.72E+00 0.00E+00 6.72E+00 Co-60 <2.27E+00 0.00E+00 2.27E+00 Zn-65 <5.01E+00 0.00E+00 5.01E+00 Zr-95 <4.95E+00 0.00E+00 4.95E+00 Nb-95 <2.99E+00 0.00E+00 2.99E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <2.55E+00 0.00E+00 2.55E+00 Cs-137 <2.34E+00 0.00E+00 2.34E+00 BaLa-140 <6.84E+00 0.00E+00 6.84E+00 H3SW <4.11E+01 0.00E+00 1.92E+02 Sample ID: 417777 Sample Dates: 7/4/2016 - 8/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <3.20E+00 0.00E+00 3.20E+00 Co-58 <2.79E+00 0.00E+00 2.79E+00 Fe-59 <5.24E+00 0.00E+00 5.24E+00 Co-60 <1.87E+00 0.00E+00 1.87E+00 Zn-65 <7.24E+00 0.00E+00 7.24E+00 Zr-95 <5.38E+00 0.00E+00 5.38E+00 Nb-95 <3.66E+00 0.00E+00 3.66E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <3.24E+00 0.00E+00 3.24E+00 Cs-137 <3.18E+00 0.00E+00 3.18E+00 BaLa-140 <7.97E+00 0.00E+00 7.97E+00 H3SW <1.39E+02 0.00E+00 1.83E+02 Sample ID: 419998 Sample Dates: 8/1/2016 - 9/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.31E+00 0.00E+00 1.31E+00 Co-58 <1.50E+00 0.00E+00 1.50E+00 Fe-59 <3.19E+00 0.00E+00 3.19E+00 Co-60 <1.06E+00 0.00E+00 1.06E+00 Zn-65 <2.34E+00 0.00E+00 2.34E+00 Zr-95 <2.66E+00 0.00E+00 2.66E+00 Nb-95 <1.71E+00 0.00E+00 1.71E+00 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <1.33E+00 0.00E+00 1.33E+00 Cs-137 <1.13E+00 0.00E+00 1.13E+00 BaLa-140 <4.26E+00 0.00E+00 4.26E+00 H3SW <-2.6E+01 0.00E+00 1.99E+02 Sample ID: 423289 Sample Dates: 9/1/2016 - 10/3/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.43E+00 0.00E+00 2.43E+00 Co-58 <2.93E+00 0.00E+00 2.93E+00 Fe-59 <5.12E+00 0.00E+00 5.12E+00 Co-60 <2.16E+00 0.00E+00 2.16E+00 Zn-65 <5.69E+00 0.00E+00 5.69E+00 Zr-95 <3.61E+00 0.00E+00 3.61E+00 Nb-95 <2.90E+00 0.00E+00 2.90E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <2.62E+00 0.00E+00 2.62E+00 Cs-137 <2.66E+00 0.00E+00 2.66E+00 BaLa-140 <6.68E+00 0.00E+00 6.68E+00 H3SW <-3.9E+01 0.00E+00 1.92E+02 Sample ID: 426336 Sample Dates: 10/3/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <3.04E+00 0.00E+00 3.04E+00 Co-58 <2.53E+00 0.00E+00 2.53E+00 Fe-59 <6.40E+00 0.00E+00 6.40E+00 Co-60 <2.44E+00 0.00E+00 2.44E+00 Zn-65 <6.51E+00 0.00E+00 6.51E+00 Zr-95 <5.21E+00 0.00E+00 5.21E+00 Nb-95 <4.47E+00 0.00E+00 4.47E+00 I-131 <1.14E+01 0.00E+00 1.14E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 73 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 400 Sample Point 400 [ CONTROL - NE @ 0.6 miles ]

Sample ID: 426336 Sample Dates: 10/3/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <3.27E+00 0.00E+00 3.27E+00 Cs-137 <2.55E+00 0.00E+00 2.55E+00 BaLa-140 <9.17E+00 0.00E+00 9.17E+00 H3SW <3.11E+01 0.00E+00 1.94E+02 Sample ID: 428864 Sample Dates: 11/1/2016 - 12/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.75E+00 0.00E+00 1.75E+00 Co-58 <1.93E+00 0.00E+00 1.93E+00 Fe-59 <4.50E+00 0.00E+00 4.50E+00 Co-60 <1.71E+00 0.00E+00 1.71E+00 Zn-65 <3.85E+00 0.00E+00 3.85E+00 Zr-95 <4.24E+00 0.00E+00 4.24E+00 Nb-95 <2.53E+00 0.00E+00 2.53E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <2.27E+00 0.00E+00 2.27E+00 Cs-137 <1.72E+00 0.00E+00 1.72E+00 BaLa-140 <6.44E+00 0.00E+00 6.44E+00 H3SW <-6.3E+01 0.00E+00 1.86E+02 Sample ID: 431034 Sample Dates: 12/1/2016 - 1/3/2017 Nuclide Activity 2 Sigma Error MDA Mn-54 <3.67E+00 0.00E+00 3.67E+00 Co-58 <3.31E+00 0.00E+00 3.31E+00 Fe-59 <6.48E+00 0.00E+00 6.48E+00 Co-60 <3.72E+00 0.00E+00 3.72E+00 Zn-65 <5.43E+00 0.00E+00 5.43E+00 Zr-95 <6.13E+00 0.00E+00 6.13E+00 Nb-95 <3.65E+00 0.00E+00 3.65E+00 I-131 <1.14E+01 0.00E+00 1.14E+01 Cs-134 <3.61E+00 0.00E+00 3.61E+00 Cs-137 <3.04E+00 0.00E+00 3.04E+00 BaLa-140 <6.67E+00 0.00E+00 6.67E+00 H3SW <-5.6E+01 0.00E+00 1.93E+02 Sample Point 401 [ INDICATOR - SSW @ 4.9 miles ]

Sample ID: 399235 Sample Dates: 1/5/2016 - 2/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <4.07E+00 0.00E+00 4.07E+00 Co-58 <3.25E+00 0.00E+00 3.25E+00 Fe-59 <6.96E+00 0.00E+00 6.96E+00 Co-60 <3.94E+00 0.00E+00 3.94E+00 Zn-65 <9.06E+00 0.00E+00 9.06E+00 Zr-95 <6.77E+00 0.00E+00 6.77E+00 Nb-95 <4.28E+00 0.00E+00 4.28E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <3.82E+00 0.00E+00 3.82E+00 Cs-137 <3.75E+00 0.00E+00 3.75E+00 BaLa-140 <9.75E+00 0.00E+00 9.75E+00 H3SW <1.50E+02 0.00E+00 1.96E+02 Sample ID: 401330 Sample Dates: 2/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <3.54E+00 0.00E+00 3.54E+00 Co-58 <3.95E+00 0.00E+00 3.95E+00 Fe-59 <9.02E+00 0.00E+00 9.02E+00 Co-60 <3.55E+00 0.00E+00 3.55E+00 Zn-65 <7.06E+00 0.00E+00 7.06E+00 Zr-95 <6.70E+00 0.00E+00 6.70E+00 Nb-95 <4.65E+00 0.00E+00 4.65E+00 I-131 <1.19E+01 0.00E+00 1.19E+01 Cs-134 <3.57E+00 0.00E+00 3.57E+00 Cs-137 <3.11E+00 0.00E+00 3.11E+00 BaLa-140 <7.22E+00 0.00E+00 7.22E+00 H3SW 6.02E+02 1.27E+02 1.90E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 74 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 401 Sample Point 401 [ INDICATOR - SSW @ 4.9 miles ]

Sample ID: 407531 Sample Dates: 3/1/2016 - 4/4/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.35E+00 0.00E+00 2.35E+00 Co-58 <2.37E+00 0.00E+00 2.37E+00 Fe-59 <5.20E+00 0.00E+00 5.20E+00 Co-60 <1.72E+00 0.00E+00 1.72E+00 Zn-65 <4.58E+00 0.00E+00 4.58E+00 Zr-95 <4.80E+00 0.00E+00 4.80E+00 Nb-95 <3.22E+00 0.00E+00 3.22E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <2.39E+00 0.00E+00 2.39E+00 Cs-137 <2.37E+00 0.00E+00 2.37E+00 BaLa-140 <6.84E+00 0.00E+00 6.84E+00 H3SW 2.67E+02 1.18E+02 1.89E+02 Sample ID: 410911 Sample Dates: 4/4/2016 - 5/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.34E+00 0.00E+00 1.34E+00 Co-58 <1.39E+00 0.00E+00 1.39E+00 Fe-59 <2.59E+00 0.00E+00 2.59E+00 Co-60 <1.30E+00 0.00E+00 1.30E+00 Zn-65 <2.76E+00 0.00E+00 2.76E+00 Zr-95 <2.43E+00 0.00E+00 2.43E+00 Nb-95 <1.83E+00 0.00E+00 1.83E+00 I-131 <5.16E+00 0.00E+00 5.16E+00 Cs-134 <1.54E+00 0.00E+00 1.54E+00 Cs-137 <1.39E+00 0.00E+00 1.39E+00 BaLa-140 <2.60E+00 0.00E+00 2.60E+00 H3SW <4.17E+01 0.00E+00 1.96E+02 Sample ID: 412714 Sample Dates: 5/2/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.95E+00 0.00E+00 1.95E+00 Co-58 <2.31E+00 0.00E+00 2.31E+00 Fe-59 <4.96E+00 0.00E+00 4.96E+00 Co-60 <2.36E+00 0.00E+00 2.36E+00 Zn-65 <4.10E+00 0.00E+00 4.10E+00 Zr-95 <4.11E+00 0.00E+00 4.11E+00 Nb-95 <3.07E+00 0.00E+00 3.07E+00 I-131 <1.05E+01 0.00E+00 1.05E+01 Cs-134 <2.15E+00 0.00E+00 2.15E+00 Cs-137 <2.05E+00 0.00E+00 2.05E+00 BaLa-140 <5.93E+00 0.00E+00 5.93E+00 H3SW <6.88E+01 0.00E+00 2.05E+02 Sample ID: 415376 Sample Dates: 6/1/2016 - 7/4/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.21E+00 0.00E+00 2.21E+00 Co-58 <2.62E+00 0.00E+00 2.62E+00 Fe-59 <5.39E+00 0.00E+00 5.39E+00 Co-60 <2.13E+00 0.00E+00 2.13E+00 Zn-65 <5.25E+00 0.00E+00 5.25E+00 Zr-95 <3.73E+00 0.00E+00 3.73E+00 Nb-95 <2.78E+00 0.00E+00 2.78E+00 I-131 <1.14E+01 0.00E+00 1.14E+01 Cs-134 <2.44E+00 0.00E+00 2.44E+00 Cs-137 <2.24E+00 0.00E+00 2.24E+00 BaLa-140 <5.69E+00 0.00E+00 5.69E+00 H3SW <9.18E+01 0.00E+00 1.92E+02 Sample ID: 417778 Sample Dates: 7/4/2016 - 8/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.51E+00 0.00E+00 1.51E+00 Co-58 <1.93E+00 0.00E+00 1.93E+00 Fe-59 <3.42E+00 0.00E+00 3.42E+00 Co-60 <1.51E+00 0.00E+00 1.51E+00 Zn-65 <2.49E+00 0.00E+00 2.49E+00 Zr-95 <3.00E+00 0.00E+00 3.00E+00 Nb-95 <2.01E+00 0.00E+00 2.01E+00 I-131 <5.84E+00 0.00E+00 5.84E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 75 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 401 Sample Point 401 [ INDICATOR - SSW @ 4.9 miles ]

Sample ID: 417778 Sample Dates: 7/4/2016 - 8/1/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.65E+00 0.00E+00 1.65E+00 Cs-137 <1.82E+00 0.00E+00 1.82E+00 BaLa-140 <4.27E+00 0.00E+00 4.27E+00 H3SW 3.23E+02 1.16E+02 1.84E+02 Sample ID: 419999 Sample Dates: 8/1/2016 - 9/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.03E+00 0.00E+00 1.03E+00 Co-58 <1.11E+00 0.00E+00 1.11E+00 Fe-59 <2.71E+00 0.00E+00 2.71E+00 Co-60 <9.99E-01 0.00E+00 9.99E-01 Zn-65 <2.03E+00 0.00E+00 2.03E+00 Zr-95 <2.09E+00 0.00E+00 2.09E+00 Nb-95 <1.68E+00 0.00E+00 1.68E+00 I-131 <9.35E+00 0.00E+00 9.35E+00 Cs-134 <1.11E+00 0.00E+00 1.11E+00 Cs-137 <1.08E+00 0.00E+00 1.08E+00 BaLa-140 <3.84E+00 0.00E+00 3.84E+00 H3SW <5.27E+01 0.00E+00 1.99E+02 Sample ID: 423290 Sample Dates: 9/1/2016 - 10/3/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.42E+00 0.00E+00 2.42E+00 Co-58 <2.84E+00 0.00E+00 2.84E+00 Fe-59 <6.19E+00 0.00E+00 6.19E+00 Co-60 <2.30E+00 0.00E+00 2.30E+00 Zn-65 <5.98E+00 0.00E+00 5.98E+00 Zr-95 <4.76E+00 0.00E+00 4.76E+00 Nb-95 <3.82E+00 0.00E+00 3.82E+00 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <2.93E+00 0.00E+00 2.93E+00 Cs-137 <2.51E+00 0.00E+00 2.51E+00 BaLa-140 <7.21E+00 0.00E+00 7.21E+00 H3SW <1.28E+02 0.00E+00 1.92E+02 Sample ID: 426337 Sample Dates: 10/3/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <3.11E+00 0.00E+00 3.11E+00 Co-58 <3.28E+00 0.00E+00 3.28E+00 Fe-59 <6.20E+00 0.00E+00 6.20E+00 Co-60 <3.11E+00 0.00E+00 3.11E+00 Zn-65 <6.80E+00 0.00E+00 6.80E+00 Zr-95 <6.16E+00 0.00E+00 6.16E+00 Nb-95 <4.78E+00 0.00E+00 4.78E+00 I-131 <1.09E+01 0.00E+00 1.09E+01 Cs-134 <2.57E+00 0.00E+00 2.57E+00 Cs-137 <3.53E+00 0.00E+00 3.53E+00 BaLa-140 <5.22E+00 0.00E+00 5.22E+00 H3SW 2.25E+02 1.19E+02 1.92E+02 Sample ID: 428865 Sample Dates: 11/1/2016 - 12/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.53E+00 0.00E+00 2.53E+00 Co-58 <2.25E+00 0.00E+00 2.25E+00 Fe-59 <5.52E+00 0.00E+00 5.52E+00 Co-60 <2.36E+00 0.00E+00 2.36E+00 Zn-65 <5.43E+00 0.00E+00 5.43E+00 Zr-95 <5.14E+00 0.00E+00 5.14E+00 Nb-95 <2.93E+00 0.00E+00 2.93E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <2.42E+00 0.00E+00 2.42E+00 Cs-137 <2.46E+00 0.00E+00 2.46E+00 BaLa-140 <5.35E+00 0.00E+00 5.35E+00 H3SW 1.97E+02 1.14E+02 1.87E+02 Sample ID: 431035 Sample Dates: 12/1/2016 - 1/3/2017 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.88E+00 0.00E+00 2.88E+00 Co-58 <3.46E+00 0.00E+00 3.46E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 76 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 401 Sample Point 401 [ INDICATOR - SSW @ 4.9 miles ]

Sample ID: 431035 Sample Dates: 12/1/2016 - 1/3/2017 Nuclide Activity 2 Sigma Error MDA Fe-59 <7.14E+00 0.00E+00 7.14E+00 Co-60 <4.19E+00 0.00E+00 4.19E+00 Zn-65 <4.64E+00 0.00E+00 4.64E+00 Zr-95 <6.48E+00 0.00E+00 6.48E+00 Nb-95 <4.60E+00 0.00E+00 4.60E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <3.55E+00 0.00E+00 3.55E+00 Cs-137 <3.17E+00 0.00E+00 3.17E+00 BaLa-140 <1.03E+01 0.00E+00 1.03E+01 H3SW <1.28E+02 0.00E+00 1.90E+02 Sample Point 494 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400570 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.66E+02 Sample ID: 399954 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.57E+02 0.00E+00 2.69E+02 Sample ID: 400276 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.07E+00 0.00E+00 2.78E+02 Sample ID: 400927 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.7E+01 0.00E+00 2.72E+02 Sample ID: 401290 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.97E+01 0.00E+00 2.77E+02 Sample ID: 401753 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.0E+01 0.00E+00 2.61E+02 Sample ID: 402264 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.72E+01 0.00E+00 2.57E+02 Sample ID: 402986 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.3E+01 0.00E+00 2.78E+02 Sample ID: 404470 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.33E+01 0.00E+00 2.60E+02 Sample ID: 405356 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+01 0.00E+00 2.68E+02 Sample ID: 405973 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+02 0.00E+00 2.84E+02 Sample ID: 406304 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.4E+01 0.00E+00 2.58E+02 Sample ID: 407501 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.01E+00 0.00E+00 2.71E+02 Sample ID: 408055 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.7E+01 0.00E+00 2.67E+02 Sample ID: 409394 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.86E+01 0.00E+00 2.60E+02 Sample ID: 409728 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.05E+01 0.00E+00 2.51E+02 Sample ID: 410881 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.2E+01 0.00E+00 2.76E+02 Sample ID: 411381 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.58E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 77 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 494 Sample Point 494 [ INDICATOR - -- @ 0 miles ]

Sample ID: 411705 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+00 0.00E+00 2.57E+02 Sample ID: 412167 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.09E+01 0.00E+00 2.57E+02 Sample ID: 412684 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.73E+01 0.00E+00 2.58E+02 Sample ID: 413287 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+02 0.00E+00 2.62E+02 Sample ID: 413834 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.15E+02 0.00E+00 2.46E+02 Sample ID: 414974 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.3E+02 0.00E+00 2.74E+02 Sample ID: 415339 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.79E+01 0.00E+00 2.49E+02 Sample ID: 416339 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.64E+00 0.00E+00 2.62E+02 Sample ID: 416963 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.3E+01 0.00E+00 2.70E+02 Sample ID: 417356 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.57E+01 0.00E+00 2.57E+02 Sample ID: 417717 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.09E+01 0.00E+00 2.53E+02 Sample ID: 418203 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.3E+01 0.00E+00 2.59E+02 Sample ID: 418931 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+02 0.00E+00 2.77E+02 Sample ID: 423170 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.37E+01 0.00E+00 2.61E+02 Sample ID: 423212 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.00E+02 0.00E+00 2.55E+02 Sample ID: 423226 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.67E+02 Sample ID: 424356 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.59E+01 0.00E+00 2.61E+02 Sample ID: 427535 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.0E+01 0.00E+00 2.38E+02 Sample ID: 423255 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+01 0.00E+00 2.28E+02 Sample ID: 424373 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.9E+01 0.00E+00 2.46E+02 Sample ID: 425372 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.58E+01 0.00E+00 2.36E+02 Sample ID: 425934 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.79E+02 0.00E+00 2.48E+02 Sample ID: 426307 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.92E+02 0.00E+00 2.48E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 78 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 494 Sample Point 494 [ INDICATOR - -- @ 0 miles ]

Sample ID: 426996 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.49E+02 Sample ID: 427653 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.0E+01 0.00E+00 2.44E+02 Sample ID: 428152 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.12E+02 0.00E+00 2.29E+02 Sample ID: 428827 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.0E+00 0.00E+00 2.45E+02 Sample ID: 429345 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.1E+01 0.00E+00 2.41E+02 Sample ID: 429896 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW 3.18E+03 1.96E+02 2.46E+02 Sample ID: 430516 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.21E+01 0.00E+00 2.41E+02 Sample ID: 431004 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.28E+00 0.00E+00 2.51E+02 Sample ID: 431412 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.16E+01 0.00E+00 2.54E+02 Sample ID: 431743 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.02E+02 0.00E+00 2.34E+02 Sample ID: 432144 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.69E+01 0.00E+00 2.42E+02 Sample Point 495 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400458 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.65E+02 Sample ID: 399955 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.7E+02 0.00E+00 2.86E+02 Sample ID: 400277 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.58E+01 0.00E+00 2.79E+02 Sample ID: 400727 Sample Dates: 1/6/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <5.83E+00 0.00E+00 5.83E+00 Co-58 <7.62E+00 0.00E+00 7.62E+00 Fe-59 <1.50E+01 0.00E+00 1.50E+01 Co-60 <8.37E+00 0.00E+00 8.37E+00 Zn-65 <1.80E+01 0.00E+00 1.80E+01 Zr-95 <1.38E+01 0.00E+00 1.38E+01 Nb-95 <1.04E+01 0.00E+00 1.04E+01 I-131 <2.21E+01 0.00E+00 2.21E+01 Cs-134 <5.90E+00 0.00E+00 5.90E+00 Cs-137 <6.77E+00 0.00E+00 6.77E+00 La-140 <5.66E+02 0.00E+00 5.66E+02 Ba-140 <6.35E+01 0.00E+00 6.35E+01 Total-Gam 0.00E+00 Sample ID: 400928 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.6E+01 0.00E+00 2.61E+02 Sample ID: 401291 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+01 0.00E+00 2.61E+02 Sample ID: 401754 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.23E+00 0.00E+00 2.74E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 79 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 495 Sample Point 495 [ INDICATOR - -- @ 0 miles ]

Sample ID: 402265 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.5E+01 0.00E+00 2.59E+02 Sample ID: 402974 Sample Dates: 2/2/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.38E+00 0.00E+00 9.38E+00 Co-58 <1.10E+01 0.00E+00 1.10E+01 Fe-59 <2.39E+01 0.00E+00 2.39E+01 Co-60 <9.70E+00 0.00E+00 9.70E+00 Zn-65 <1.73E+01 0.00E+00 1.73E+01 Zr-95 <1.83E+01 0.00E+00 1.83E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 I-131 <4.21E+01 0.00E+00 4.21E+01 Cs-134 <8.31E+00 0.00E+00 8.31E+00 Cs-137 <5.53E+00 0.00E+00 5.53E+00 La-140 <1.88E+04 0.00E+00 1.88E+04 Ba-140 <8.37E+01 0.00E+00 8.37E+01 Total-Gam 0.00E+00 Sample ID: 402987 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+01 0.00E+00 2.63E+02 Sample ID: 404471 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.23E+02 0.00E+00 2.56E+02 Sample ID: 405357 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+02 0.00E+00 2.67E+02 Sample ID: 405974 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.81E+02 Sample ID: 406305 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.97E+01 0.00E+00 2.54E+02 Sample ID: 406649 Sample Dates: 3/1/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.13E+01 0.00E+00 1.13E+01 Co-58 <9.53E+00 0.00E+00 9.53E+00 Fe-59 <1.46E+01 0.00E+00 1.46E+01 Co-60 <6.91E+00 0.00E+00 6.91E+00 Zn-65 <2.19E+01 0.00E+00 2.19E+01 Zr-95 <1.51E+01 0.00E+00 1.51E+01 Nb-95 <1.24E+01 0.00E+00 1.24E+01 I-131 <3.47E+01 0.00E+00 3.47E+01 Cs-134 <8.48E+00 0.00E+00 8.48E+00 Cs-137 <7.82E+00 0.00E+00 7.82E+00 La-140 <3.61E+03 0.00E+00 3.61E+03 Ba-140 <5.48E+01 0.00E+00 5.48E+01 Total-Gam 0.00E+00 Sample ID: 407502 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.64E+02 Sample ID: 408056 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.1E+01 0.00E+00 2.69E+02 Sample ID: 409395 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.69E+02 Sample ID: 409729 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.59E+01 0.00E+00 2.49E+02 Sample ID: 410169 Sample Dates: 4/5/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.04E+01 0.00E+00 1.04E+01 Co-58 <9.48E+00 0.00E+00 9.48E+00 Fe-59 <1.57E+01 0.00E+00 1.57E+01 Co-60 <4.83E+00 0.00E+00 4.83E+00 Zn-65 <1.89E+01 0.00E+00 1.89E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 80 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 495 Sample Point 495 [ INDICATOR - -- @ 0 miles ]

Sample ID: 410169 Sample Dates: 4/5/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <1.79E+01 0.00E+00 1.79E+01 Nb-95 <9.66E+00 0.00E+00 9.66E+00 I-131 <2.15E+01 0.00E+00 2.15E+01 Cs-134 <9.22E+00 0.00E+00 9.22E+00 Cs-137 <8.45E+00 0.00E+00 8.45E+00 La-140 <1.11E+03 0.00E+00 1.11E+03 Ba-140 <5.80E+01 0.00E+00 5.80E+01 Total-Gam 0.00E+00 Sample ID: 410882 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.18E+02 0.00E+00 2.70E+02 Sample ID: 411382 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.7E+02 0.00E+00 2.80E+02 Sample ID: 411706 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.59E+02 Sample ID: 412168 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.4E+01 0.00E+00 2.77E+02 Sample ID: 412676 Sample Dates: 5/3/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.16E+00 0.00E+00 9.16E+00 Co-58 <8.63E+00 0.00E+00 8.63E+00 Fe-59 <2.11E+01 0.00E+00 2.11E+01 Co-60 <8.41E+00 0.00E+00 8.41E+00 Zn-65 <1.76E+01 0.00E+00 1.76E+01 Zr-95 <2.07E+01 0.00E+00 2.07E+01 Nb-95 <1.51E+01 0.00E+00 1.51E+01 I-131 <5.99E+01 0.00E+00 5.99E+01 Cs-134 <1.00E+01 0.00E+00 1.00E+01 Cs-137 <9.04E+00 0.00E+00 9.04E+00 La-140 <1.86E+05 0.00E+00 1.86E+05 Ba-140 <1.20E+02 0.00E+00 1.20E+02 Total-Gam 0.00E+00 Sample ID: 412685 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.45E+01 0.00E+00 2.60E+02 Sample ID: 413288 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+02 0.00E+00 2.62E+02 Sample ID: 413835 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.85E+01 0.00E+00 2.51E+02 Sample ID: 414975 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.59E+02 Sample ID: 415340 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.63E+02 Sample ID: 415642 Sample Dates: 6/1/2016 - 6/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.10E+00 0.00E+00 9.10E+00 Co-58 <1.01E+01 0.00E+00 1.01E+01 Fe-59 <2.14E+01 0.00E+00 2.14E+01 Co-60 <7.67E+00 0.00E+00 7.67E+00 Zn-65 <2.47E+01 0.00E+00 2.47E+01 Zr-95 <1.78E+01 0.00E+00 1.78E+01 Nb-95 <1.35E+01 0.00E+00 1.35E+01 I-131 <5.70E+01 0.00E+00 5.70E+01 Cs-134 <8.32E+00 0.00E+00 8.32E+00 Cs-137 <9.59E+00 0.00E+00 9.59E+00 La-140 <4.78E+04 0.00E+00 4.78E+04 Ba-140 <8.55E+01 0.00E+00 8.55E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 81 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 495 Sample Point 495 [ INDICATOR - -- @ 0 miles ]

Sample ID: 416340 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.24E+01 0.00E+00 2.52E+02 Sample ID: 416964 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.5E+01 0.00E+00 2.61E+02 Sample ID: 417357 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.7E+01 0.00E+00 2.53E+02 Sample ID: 417718 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.57E+01 0.00E+00 2.57E+02 Sample ID: 418190 Sample Dates: 7/5/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.50E+00 0.00E+00 8.50E+00 Co-58 <1.15E+01 0.00E+00 1.15E+01 Fe-59 <2.55E+01 0.00E+00 2.55E+01 Co-60 <9.41E+00 0.00E+00 9.41E+00 Zn-65 <1.84E+01 0.00E+00 1.84E+01 Zr-95 <2.34E+01 0.00E+00 2.34E+01 Nb-95 <1.57E+01 0.00E+00 1.57E+01 I-131 <7.15E+01 0.00E+00 7.15E+01 Cs-134 <8.28E+00 0.00E+00 8.28E+00 Cs-137 <1.25E+01 0.00E+00 1.25E+01 La-140 <4.21E+05 0.00E+00 4.21E+05 Ba-140 <1.17E+02 0.00E+00 1.17E+02 Total-Gam 0.00E+00 Sample ID: 418204 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.32E+01 0.00E+00 2.59E+02 Sample ID: 418932 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.6E+01 0.00E+00 2.61E+02 Sample ID: 423157 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.8E+01 0.00E+00 2.71E+02 Sample ID: 423200 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.08E+01 0.00E+00 2.56E+02 Sample ID: 423214 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.88E+00 0.00E+00 2.64E+02 Sample ID: 424654 Sample Dates: 8/2/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.78E+00 0.00E+00 9.78E+00 Co-58 <1.34E+01 0.00E+00 1.34E+01 Fe-59 <2.74E+01 0.00E+00 2.74E+01 Co-60 <7.98E+00 0.00E+00 7.98E+00 Zn-65 <1.88E+01 0.00E+00 1.88E+01 Zr-95 <1.56E+01 0.00E+00 1.56E+01 Nb-95 <2.02E+01 0.00E+00 2.02E+01 I-131 <1.97E+02 0.00E+00 1.97E+02 Cs-134 <7.62E+00 0.00E+00 7.62E+00 Cs-137 <1.11E+01 0.00E+00 1.11E+01 La-140 <1.88E+07 0.00E+00 1.88E+07 Ba-140 <2.63E+02 0.00E+00 2.63E+02 Total-Gam 0.00E+00 Sample ID: 424342 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+01 0.00E+00 2.60E+02 Sample ID: 427402 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.8E+01 0.00E+00 2.39E+02 Sample ID: 423256 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.0E+01 0.00E+00 2.34E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 82 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 495 Sample Point 495 [ INDICATOR - -- @ 0 miles ]

Sample ID: 424374 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.9E+01 0.00E+00 2.31E+02 Sample ID: 424732 Sample Dates: 9/6/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.91E+00 0.00E+00 7.91E+00 Co-58 <1.33E+01 0.00E+00 1.33E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <6.69E+00 0.00E+00 6.69E+00 Zn-65 <2.12E+01 0.00E+00 2.12E+01 Zr-95 <2.30E+01 0.00E+00 2.30E+01 Nb-95 <1.91E+01 0.00E+00 1.91E+01 I-131 <6.38E+02 0.00E+00 6.38E+02 Cs-134 <8.24E+00 0.00E+00 8.24E+00 Cs-137 <7.95E+00 0.00E+00 7.95E+00 La-140 <2.00E+10 0.00E+00 2.00E+10 Ba-140 <5.15E+02 0.00E+00 5.15E+02 Total-Gam 0.00E+00 Sample ID: 425373 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.46E+01 0.00E+00 2.34E+02 Sample ID: 425935 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.21E+02 0.00E+00 2.27E+02 Sample ID: 426308 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.43E+01 0.00E+00 2.43E+02 Sample ID: 426997 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.10E+02 0.00E+00 2.49E+02 Sample ID: 427645 Sample Dates: 10/4/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <5.33E+00 0.00E+00 5.33E+00 Co-58 <1.17E+01 0.00E+00 1.17E+01 Fe-59 <1.85E+01 0.00E+00 1.85E+01 Co-60 <5.42E+00 0.00E+00 5.42E+00 Zn-65 <1.75E+01 0.00E+00 1.75E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <1.38E+01 0.00E+00 1.38E+01 I-131 <8.25E+01 0.00E+00 8.25E+01 Cs-134 <6.38E+00 0.00E+00 6.38E+00 Cs-137 <6.88E+00 0.00E+00 6.88E+00 La-140 <2.25E+06 0.00E+00 2.25E+06 Ba-140 <1.05E+02 0.00E+00 1.05E+02 Total-Gam 0.00E+00 Sample ID: 427654 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.64E+02 0.00E+00 2.41E+02 Sample ID: 428153 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.22E+02 0.00E+00 2.41E+02 Sample ID: 428828 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.5E+01 0.00E+00 2.60E+02 Sample ID: 429346 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.78E+02 0.00E+00 2.46E+02 Sample ID: 429897 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.6E+01 0.00E+00 2.45E+02 Sample ID: 429888 Sample Dates: 11/1/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.68E+00 0.00E+00 8.68E+00 Co-58 <8.04E+00 0.00E+00 8.04E+00 Fe-59 <1.71E+01 0.00E+00 1.71E+01 Co-60 <5.97E+00 0.00E+00 5.97E+00 Zn-65 <1.40E+01 0.00E+00 1.40E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 83 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 495 Sample Point 495 [ INDICATOR - -- @ 0 miles ]

Sample ID: 429888 Sample Dates: 11/1/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <2.00E+01 0.00E+00 2.00E+01 Nb-95 <1.36E+01 0.00E+00 1.36E+01 I-131 <2.85E+01 0.00E+00 2.85E+01 Cs-134 <6.57E+00 0.00E+00 6.57E+00 Cs-137 <8.64E+00 0.00E+00 8.64E+00 La-140 <3.34E+03 0.00E+00 3.34E+03 Ba-140 <6.61E+01 0.00E+00 6.61E+01 Total-Gam 0.00E+00 Sample ID: 430517 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.63E+01 0.00E+00 2.35E+02 Sample ID: 431005 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.73E+00 0.00E+00 2.49E+02 Sample ID: 431413 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+01 0.00E+00 2.58E+02 Sample ID: 431744 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.39E+02 0.00E+00 2.49E+02 Sample ID: 432074 Sample Dates: 12/6/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.52E+00 0.00E+00 7.51E+00 Co-58 <8.30E+00 0.00E+00 8.30E+00 Fe-59 <1.50E+01 0.00E+00 1.50E+01 Co-60 <8.08E+00 0.00E+00 8.08E+00 Zn-65 <1.38E+01 0.00E+00 1.38E+01 Zr-95 <1.14E+01 0.00E+00 1.14E+01 Nb-95 <9.09E+00 0.00E+00 9.09E+00 I-131 <2.08E+01 0.00E+00 2.08E+01 Cs-134 <6.68E+00 0.00E+00 6.68E+00 Cs-137 <8.17E+00 0.00E+00 8.17E+00 La-140 <6.57E+02 0.00E+00 6.57E+02 Ba-140 <4.53E+01 0.00E+00 4.53E+01 Total-Gam 0.00E+00 Sample ID: 432145 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+01 0.00E+00 2.46E+02 Sample Point 496 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400459 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.54E+01 0.00E+00 2.55E+02 Sample ID: 399956 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.2E+02 0.00E+00 2.84E+02 Sample ID: 400278 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+02 0.00E+00 2.81E+02 Sample ID: 400728 Sample Dates: 1/6/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.91E+00 0.00E+00 7.91E+00 Co-58 <7.25E+00 0.00E+00 7.25E+00 Fe-59 <1.75E+01 0.00E+00 1.75E+01 Co-60 <8.38E+00 0.00E+00 8.38E+00 Zn-65 <1.90E+01 0.00E+00 1.90E+01 Zr-95 <1.78E+01 0.00E+00 1.78E+01 Nb-95 <1.26E+01 0.00E+00 1.26E+01 I-131 <2.48E+01 0.00E+00 2.48E+01 Cs-134 <8.46E+00 0.00E+00 8.46E+00 Cs-137 <9.03E+00 0.00E+00 9.03E+00 La-140 <9.79E+02 0.00E+00 9.79E+02 Ba-140 <5.38E+01 0.00E+00 5.38E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 84 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 496 Sample Point 496 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400929 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.4E+01 0.00E+00 2.59E+02 Sample ID: 401292 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.5E+01 0.00E+00 2.61E+02 Sample ID: 401755 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.74E+02 Sample ID: 402266 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+01 0.00E+00 2.60E+02 Sample ID: 402975 Sample Dates: 2/2/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.70E+00 0.00E+00 9.71E+00 Co-58 <1.24E+01 0.00E+00 1.24E+01 Fe-59 <2.09E+01 0.00E+00 2.09E+01 Co-60 <5.94E+00 0.00E+00 5.94E+00 Zn-65 <2.30E+01 0.00E+00 2.30E+01 Zr-95 <1.92E+01 0.00E+00 1.92E+01 Nb-95 <1.36E+01 0.00E+00 1.36E+01 I-131 <4.37E+01 0.00E+00 4.37E+01 Cs-134 <8.10E+00 0.00E+00 8.10E+00 Cs-137 <7.83E+00 0.00E+00 7.83E+00 La-140 <3.15E+04 0.00E+00 3.15E+04 Ba-140 <9.02E+01 0.00E+00 9.02E+01 Total-Gam 0.00E+00 Sample ID: 402988 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.5E+01 0.00E+00 2.63E+02 Sample ID: 404472 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.81E+02 0.00E+00 2.57E+02 Sample ID: 405358 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.3E+02 0.00E+00 2.68E+02 Sample ID: 405975 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+02 0.00E+00 2.83E+02 Sample ID: 406306 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.8E+01 0.00E+00 2.53E+02 Sample ID: 406650 Sample Dates: 3/1/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.07E+01 0.00E+00 1.07E+01 Co-58 <1.09E+01 0.00E+00 1.09E+01 Fe-59 <2.06E+01 0.00E+00 2.06E+01 Co-60 <5.93E+00 0.00E+00 5.93E+00 Zn-65 <1.92E+01 0.00E+00 1.92E+01 Zr-95 <1.51E+01 0.00E+00 1.51E+01 Nb-95 <1.40E+01 0.00E+00 1.40E+01 I-131 <3.05E+01 0.00E+00 3.05E+01 Cs-134 <6.93E+00 0.00E+00 6.93E+00 Cs-137 <8.14E+00 0.00E+00 8.14E+00 La-140 <3.72E+03 0.00E+00 3.72E+03 Ba-140 <5.30E+01 0.00E+00 5.30E+01 Total-Gam 0.00E+00 Sample ID: 407503 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.1E+02 0.00E+00 2.65E+02 Sample ID: 408057 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+02 0.00E+00 2.69E+02 Sample ID: 409396 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.3E+01 0.00E+00 2.68E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 85 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 496 Sample Point 496 [ INDICATOR - -- @ 0 miles ]

Sample ID: 409730 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.5E+01 0.00E+00 2.50E+02 Sample ID: 410170 Sample Dates: 4/5/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.59E+00 0.00E+00 8.59E+00 Co-58 <8.47E+00 0.00E+00 8.47E+00 Fe-59 <1.85E+01 0.00E+00 1.85E+01 Co-60 <7.56E+00 0.00E+00 7.56E+00 Zn-65 <1.70E+01 0.00E+00 1.70E+01 Zr-95 <1.91E+01 0.00E+00 1.91E+01 Nb-95 <1.22E+01 0.00E+00 1.22E+01 I-131 <2.06E+01 0.00E+00 2.06E+01 Cs-134 <9.04E+00 0.00E+00 9.04E+00 Cs-137 <8.74E+00 0.00E+00 8.75E+00 La-140 <1.21E+03 0.00E+00 1.21E+03 Ba-140 <5.56E+01 0.00E+00 5.56E+01 Total-Gam 0.00E+00 Sample ID: 410883 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.69E+02 Sample ID: 411383 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+02 0.00E+00 2.79E+02 Sample ID: 411707 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.1E+01 0.00E+00 2.59E+02 Sample ID: 412169 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.24E+02 0.00E+00 2.76E+02 Sample ID: 412677 Sample Dates: 5/3/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.04E+01 0.00E+00 1.04E+01 Co-58 <1.20E+01 0.00E+00 1.20E+01 Fe-59 <3.29E+01 0.00E+00 3.29E+01 Co-60 <6.93E+00 0.00E+00 6.93E+00 Zn-65 <1.87E+01 0.00E+00 1.87E+01 Zr-95 <2.14E+01 0.00E+00 2.14E+01 Nb-95 <1.58E+01 0.00E+00 1.58E+01 I-131 <6.68E+01 0.00E+00 6.68E+01 Cs-134 <9.15E+00 0.00E+00 9.15E+00 Cs-137 <9.85E+00 0.00E+00 9.85E+00 La-140 <2.42E+05 0.00E+00 2.42E+05 Ba-140 <1.25E+02 0.00E+00 1.25E+02 Total-Gam 0.00E+00 Sample ID: 412686 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.59E+01 0.00E+00 2.60E+02 Sample ID: 413289 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.63E+02 Sample ID: 413836 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.93E+01 0.00E+00 2.51E+02 Sample ID: 414976 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.59E+02 Sample ID: 415341 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+02 0.00E+00 2.65E+02 Sample ID: 415643 Sample Dates: 6/1/2016 - 6/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.43E+00 0.00E+00 9.43E+00 Co-58 <1.09E+01 0.00E+00 1.09E+01 Fe-59 <2.14E+01 0.00E+00 2.14E+01 Co-60 <1.08E+01 0.00E+00 1.08E+01 Zn-65 <1.51E+01 0.00E+00 1.51E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 86 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 496 Sample Point 496 [ INDICATOR - -- @ 0 miles ]

Sample ID: 415643 Sample Dates: 6/1/2016 - 6/27/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <1.95E+01 0.00E+00 1.95E+01 Nb-95 <1.58E+01 0.00E+00 1.58E+01 I-131 <5.53E+01 0.00E+00 5.53E+01 Cs-134 <9.49E+00 0.00E+00 9.49E+00 Cs-137 <9.59E+00 0.00E+00 9.59E+00 La-140 <4.57E+04 0.00E+00 4.57E+04 Ba-140 <1.02E+02 0.00E+00 1.02E+02 Total-Gam 0.00E+00 Sample ID: 416341 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.38E+01 0.00E+00 2.52E+02 Sample ID: 416965 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.5E+02 0.00E+00 2.61E+02 Sample ID: 417358 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.05E+01 0.00E+00 2.52E+02 Sample ID: 417719 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.86E+01 0.00E+00 2.56E+02 Sample ID: 418191 Sample Dates: 7/5/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.33E+00 0.00E+00 9.33E+00 Co-58 <1.36E+01 0.00E+00 1.36E+01 Fe-59 <2.57E+01 0.00E+00 2.57E+01 Co-60 <7.96E+00 0.00E+00 7.96E+00 Zn-65 <2.08E+01 0.00E+00 2.08E+01 Zr-95 <2.24E+01 0.00E+00 2.24E+01 Nb-95 <2.18E+01 0.00E+00 2.18E+01 I-131 <1.19E+02 0.00E+00 1.19E+02 Cs-134 <8.98E+00 0.00E+00 8.98E+00 Cs-137 <7.82E+00 0.00E+00 7.82E+00 La-140 <2.49E+06 0.00E+00 2.49E+06 Ba-140 <1.57E+02 0.00E+00 1.57E+02 Total-Gam 0.00E+00 Sample ID: 418205 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.75E+01 0.00E+00 2.59E+02 Sample ID: 418933 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.0E+01 0.00E+00 2.61E+02 Sample ID: 423159 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.3E+01 0.00E+00 2.71E+02 Sample ID: 423201 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.8E+01 0.00E+00 2.56E+02 Sample ID: 423216 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.64E+02 Sample ID: 424662 Sample Dates: 8/2/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.67E+00 0.00E+00 8.67E+00 Co-58 <1.25E+01 0.00E+00 1.25E+01 Fe-59 <2.44E+01 0.00E+00 2.44E+01 Co-60 <7.89E+00 0.00E+00 7.90E+00 Zn-65 <2.40E+01 0.00E+00 2.40E+01 Zr-95 <2.88E+01 0.00E+00 2.88E+01 Nb-95 <1.92E+01 0.00E+00 1.92E+01 I-131 <1.86E+02 0.00E+00 1.86E+02 Cs-134 <9.84E+00 0.00E+00 9.84E+00 Cs-137 <9.44E+00 0.00E+00 9.44E+00 La-140 <1.51E+07 0.00E+00 1.51E+07 Ba-140 <1.92E+02 0.00E+00 1.92E+02 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 87 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 496 Sample Point 496 [ INDICATOR - -- @ 0 miles ]

Sample ID: 424343 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.5E+01 0.00E+00 2.58E+02 Sample ID: 427403 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.39E+02 Sample ID: 423257 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.4E+01 0.00E+00 2.33E+02 Sample ID: 424375 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.6E+01 0.00E+00 2.31E+02 Sample ID: 424733 Sample Dates: 9/6/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.71E+00 0.00E+00 9.71E+00 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.39E+01 0.00E+00 3.39E+01 Co-60 <6.70E+00 0.00E+00 6.70E+00 Zn-65 <1.44E+01 0.00E+00 1.44E+01 Zr-95 <2.17E+01 0.00E+00 2.17E+01 Nb-95 <2.02E+01 0.00E+00 2.02E+01 I-131 <6.65E+02 0.00E+00 6.65E+02 Cs-134 <6.52E+00 0.00E+00 6.52E+00 Cs-137 <6.28E+00 0.00E+00 6.28E+00 La-140 <1.87E+10 0.00E+00 1.87E+10 Ba-140 <4.44E+02 0.00E+00 4.44E+02 Total-Gam 0.00E+00 Sample ID: 425374 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.03E+02 0.00E+00 2.34E+02 Sample ID: 425936 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.04E+02 0.00E+00 2.27E+02 Sample ID: 426309 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.94E+00 0.00E+00 2.43E+02 Sample ID: 426998 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.35E+02 0.00E+00 2.49E+02 Sample ID: 427646 Sample Dates: 10/4/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.02E+01 0.00E+00 1.02E+01 Co-58 <1.14E+01 0.00E+00 1.14E+01 Fe-59 <2.04E+01 0.00E+00 2.04E+01 Co-60 <8.57E+00 0.00E+00 8.58E+00 Zn-65 <1.75E+01 0.00E+00 1.75E+01 Zr-95 <1.56E+01 0.00E+00 1.56E+01 Nb-95 <1.62E+01 0.00E+00 1.62E+01 I-131 <1.11E+02 0.00E+00 1.11E+02 Cs-134 <6.38E+00 0.00E+00 6.38E+00 Cs-137 <7.69E+00 0.00E+00 7.69E+00 La-140 <2.68E+06 0.00E+00 2.68E+06 Ba-140 <1.40E+02 0.00E+00 1.40E+02 Total-Gam 0.00E+00 Sample ID: 427655 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.0E+01 0.00E+00 2.43E+02 Sample ID: 428154 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.56E+02 0.00E+00 2.41E+02 Sample ID: 428829 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.29E+02 0.00E+00 2.41E+02 Sample ID: 429347 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.34E+01 0.00E+00 2.48E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 88 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 496 Sample Point 496 [ INDICATOR - -- @ 0 miles ]

Sample ID: 429898 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.29E+02 0.00E+00 2.39E+02 Sample ID: 429889 Sample Dates: 11/1/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.70E+00 0.00E+00 8.70E+00 Co-58 <9.35E+00 0.00E+00 9.35E+00 Fe-59 <1.49E+01 0.00E+00 1.49E+01 Co-60 <6.61E+00 0.00E+00 6.61E+00 Zn-65 <2.12E+01 0.00E+00 2.12E+01 Zr-95 <1.40E+01 0.00E+00 1.40E+01 Nb-95 <9.76E+00 0.00E+00 9.76E+00 I-131 <3.27E+01 0.00E+00 3.27E+01 Cs-134 <8.45E+00 0.00E+00 8.45E+00 Cs-137 <8.41E+00 0.00E+00 8.41E+00 La-140 <6.61E+03 0.00E+00 6.61E+03 Ba-140 <5.59E+01 0.00E+00 5.59E+01 Total-Gam 0.00E+00 Sample ID: 430518 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.62E+01 0.00E+00 2.36E+02 Sample ID: 431006 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.44E+01 0.00E+00 2.48E+02 Sample ID: 431414 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.58E+02 Sample ID: 431745 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.52E+01 0.00E+00 2.49E+02 Sample ID: 432075 Sample Dates: 12/6/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <6.26E+00 0.00E+00 6.26E+00 Co-58 <8.36E+00 0.00E+00 8.36E+00 Fe-59 <1.70E+01 0.00E+00 1.70E+01 Co-60 <7.13E+00 0.00E+00 7.13E+00 Zn-65 <1.57E+01 0.00E+00 1.57E+01 Zr-95 <1.44E+01 0.00E+00 1.44E+01 Nb-95 <9.53E+00 0.00E+00 9.53E+00 I-131 <1.97E+01 0.00E+00 1.97E+01 Cs-134 <5.84E+00 0.00E+00 5.84E+00 Cs-137 <9.30E+00 0.00E+00 9.30E+00 La-140 <8.04E+02 0.00E+00 8.04E+02 Ba-140 <5.06E+01 0.00E+00 5.06E+01 Total-Gam 0.00E+00 Sample ID: 432146 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.33E+01 0.00E+00 2.48E+02 Sample Point 497 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400460 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.83E+01 0.00E+00 2.54E+02 Sample ID: 399957 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+02 0.00E+00 2.77E+02 Sample ID: 400279 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.2E+00 0.00E+00 2.81E+02 Sample ID: 400729 Sample Dates: 1/6/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <6.75E+00 0.00E+00 6.75E+00 Co-58 <9.25E+00 0.00E+00 9.25E+00 Fe-59 <1.85E+01 0.00E+00 1.85E+01 Co-60 <1.07E+01 0.00E+00 1.07E+01 Zn-65 <2.17E+01 0.00E+00 2.17E+01 Zr-95 <1.65E+01 0.00E+00 1.65E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 89 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 497 Sample Point 497 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400729 Sample Dates: 1/6/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Nb-95 <9.91E+00 0.00E+00 9.91E+00 I-131 <2.48E+01 0.00E+00 2.48E+01 Cs-134 <6.47E+00 0.00E+00 6.47E+00 Cs-137 <1.08E+01 0.00E+00 1.08E+01 La-140 <1.20E+03 0.00E+00 1.20E+03 Ba-140 <5.13E+01 0.00E+00 5.13E+01 Total-Gam 0.00E+00 Sample ID: 400930 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.8E+01 0.00E+00 2.61E+02 Sample ID: 401293 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.4E+01 0.00E+00 2.62E+02 Sample ID: 401756 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.48E+01 0.00E+00 2.75E+02 Sample ID: 402267 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.87E+01 0.00E+00 2.59E+02 Sample ID: 402976 Sample Dates: 2/2/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.77E+00 0.00E+00 8.77E+00 Co-58 <1.04E+01 0.00E+00 1.04E+01 Fe-59 <2.37E+01 0.00E+00 2.37E+01 Co-60 <8.40E+00 0.00E+00 8.40E+00 Zn-65 <2.13E+01 0.00E+00 2.13E+01 Zr-95 <1.87E+01 0.00E+00 1.87E+01 Nb-95 <1.26E+01 0.00E+00 1.26E+01 I-131 <4.72E+01 0.00E+00 4.72E+01 Cs-134 <6.17E+00 0.00E+00 6.17E+00 Cs-137 <1.04E+01 0.00E+00 1.04E+01 La-140 <5.02E+04 0.00E+00 5.02E+04 Ba-140 <1.12E+02 0.00E+00 1.12E+02 Total-Gam 0.00E+00 Sample ID: 402989 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+01 0.00E+00 2.63E+02 Sample ID: 404473 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.55E+02 0.00E+00 2.57E+02 Sample ID: 405359 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.67E+02 Sample ID: 405976 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.5E+02 0.00E+00 2.83E+02 Sample ID: 406307 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.0E+01 0.00E+00 2.54E+02 Sample ID: 406651 Sample Dates: 3/1/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.92E+00 0.00E+00 9.92E+00 Co-58 <1.07E+01 0.00E+00 1.07E+01 Fe-59 <1.14E+01 0.00E+00 1.14E+01 Co-60 <9.06E+00 0.00E+00 9.06E+00 Zn-65 <1.92E+01 0.00E+00 1.92E+01 Zr-95 <1.86E+01 0.00E+00 1.86E+01 Nb-95 <1.39E+01 0.00E+00 1.39E+01 I-131 <3.64E+01 0.00E+00 3.64E+01 Cs-134 <8.39E+00 0.00E+00 8.39E+00 Cs-137 <8.75E+00 0.00E+00 8.75E+00 La-140 <8.32E+03 0.00E+00 8.32E+03 Ba-140 <6.50E+01 0.00E+00 6.50E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 90 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 497 Sample Point 497 [ INDICATOR - -- @ 0 miles ]

Sample ID: 407504 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.65E+02 Sample ID: 408058 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.3E+01 0.00E+00 2.70E+02 Sample ID: 409397 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.3E+01 0.00E+00 2.69E+02 Sample ID: 409731 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.5E+01 0.00E+00 2.49E+02 Sample ID: 410171 Sample Dates: 4/5/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.09E+01 0.00E+00 1.09E+01 Co-58 <1.14E+01 0.00E+00 1.14E+01 Fe-59 <2.14E+01 0.00E+00 2.14E+01 Co-60 <8.38E+00 0.00E+00 8.37E+00 Zn-65 <2.08E+01 0.00E+00 2.08E+01 Zr-95 <1.86E+01 0.00E+00 1.86E+01 Nb-95 <1.28E+01 0.00E+00 1.28E+01 I-131 <2.18E+01 0.00E+00 2.18E+01 Cs-134 <8.46E+00 0.00E+00 8.46E+00 Cs-137 <1.06E+01 0.00E+00 1.06E+01 La-140 <1.53E+03 0.00E+00 1.53E+03 Ba-140 <5.16E+01 0.00E+00 5.16E+01 Total-Gam 0.00E+00 Sample ID: 410884 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.7E+01 0.00E+00 2.69E+02 Sample ID: 411384 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.5E+02 0.00E+00 2.79E+02 Sample ID: 411708 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.5E+01 0.00E+00 2.60E+02 Sample ID: 412170 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+01 0.00E+00 2.78E+02 Sample ID: 412678 Sample Dates: 5/3/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.54E+00 0.00E+00 8.53E+00 Co-58 <1.15E+01 0.00E+00 1.15E+01 Fe-59 <2.06E+01 0.00E+00 2.06E+01 Co-60 <7.60E+00 0.00E+00 7.60E+00 Zn-65 <1.98E+01 0.00E+00 1.98E+01 Zr-95 <2.18E+01 0.00E+00 2.18E+01 Nb-95 <1.51E+01 0.00E+00 1.51E+01 I-131 <7.38E+01 0.00E+00 7.38E+01 Cs-134 <8.47E+00 0.00E+00 8.47E+00 Cs-137 <9.59E+00 0.00E+00 9.59E+00 La-140 <6.04E+05 0.00E+00 6.04E+05 Ba-140 <1.16E+02 0.00E+00 1.16E+02 Total-Gam 0.00E+00 Sample ID: 412687 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.29E+01 0.00E+00 2.61E+02 Sample ID: 413290 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.7E+02 0.00E+00 2.62E+02 Sample ID: 413837 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.30E+01 0.00E+00 2.51E+02 Sample ID: 414977 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.59E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 91 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 497 Sample Point 497 [ INDICATOR - -- @ 0 miles ]

Sample ID: 415342 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.5E+02 0.00E+00 2.64E+02 Sample ID: 415644 Sample Dates: 6/1/2016 - 6/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.13E+00 0.00E+00 9.13E+00 Co-58 <1.30E+01 0.00E+00 1.30E+01 Fe-59 <2.17E+01 0.00E+00 2.17E+01 Co-60 <8.41E+00 0.00E+00 8.41E+00 Zn-65 <1.86E+01 0.00E+00 1.86E+01 Zr-95 <1.84E+01 0.00E+00 1.84E+01 Nb-95 <1.64E+01 0.00E+00 1.64E+01 I-131 <5.35E+01 0.00E+00 5.35E+01 Cs-134 <8.74E+00 0.00E+00 8.74E+00 Cs-137 <9.59E+00 0.00E+00 9.59E+00 La-140 <1.06E+05 0.00E+00 1.06E+05 Ba-140 <9.80E+01 0.00E+00 9.80E+01 Total-Gam 0.00E+00 Sample ID: 416342 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.08E+01 0.00E+00 2.54E+02 Sample ID: 416966 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.53E+01 0.00E+00 2.60E+02 Sample ID: 417359 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.62E+01 0.00E+00 2.52E+02 Sample ID: 417720 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.07E+01 0.00E+00 2.58E+02 Sample ID: 418192 Sample Dates: 7/5/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.24E+01 0.00E+00 1.24E+01 Co-58 <1.11E+01 0.00E+00 1.11E+01 Fe-59 <2.56E+01 0.00E+00 2.56E+01 Co-60 <1.07E+01 0.00E+00 1.07E+01 Zn-65 <2.27E+01 0.00E+00 2.27E+01 Zr-95 <2.10E+01 0.00E+00 2.10E+01 Nb-95 <1.54E+01 0.00E+00 1.54E+01 I-131 <1.38E+02 0.00E+00 1.38E+02 Cs-134 <7.84E+00 0.00E+00 7.84E+00 Cs-137 <8.83E+00 0.00E+00 8.83E+00 La-140 <2.88E+06 0.00E+00 2.88E+06 Ba-140 <1.58E+02 0.00E+00 1.58E+02 Total-Gam 0.00E+00 Sample ID: 418206 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.5E+01 0.00E+00 2.58E+02 Sample ID: 418934 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.2E+01 0.00E+00 2.61E+02 Sample ID: 423160 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.1E+01 0.00E+00 2.61E+02 Sample ID: 423202 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.6E+01 0.00E+00 2.56E+02 Sample ID: 423217 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.5E+00 0.00E+00 2.46E+02 Sample ID: 424663 Sample Dates: 8/2/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.43E+00 0.00E+00 9.43E+00 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <3.06E+01 0.00E+00 3.06E+01 Co-60 <9.44E+00 0.00E+00 9.44E+00 Zn-65 <2.31E+01 0.00E+00 2.31E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 92 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 497 Sample Point 497 [ INDICATOR - -- @ 0 miles ]

Sample ID: 424663 Sample Dates: 8/2/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <2.28E+01 0.00E+00 2.28E+01 Nb-95 <2.17E+01 0.00E+00 2.17E+01 I-131 <1.58E+02 0.00E+00 1.58E+02 Cs-134 <7.96E+00 0.00E+00 7.95E+00 Cs-137 <7.46E+00 0.00E+00 7.46E+00 La-140 <1.56E+07 0.00E+00 1.56E+07 Ba-140 <2.04E+02 0.00E+00 2.04E+02 Total-Gam 0.00E+00 Sample ID: 424344 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <0.00E+00 0.00E+00 2.61E+02 Sample ID: 427404 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.4E+01 0.00E+00 2.40E+02 Sample ID: 423258 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.0E+01 0.00E+00 2.35E+02 Sample ID: 424376 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.2E+01 0.00E+00 2.31E+02 Sample ID: 424734 Sample Dates: 9/6/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.88E+00 0.00E+00 8.88E+00 Co-58 <1.31E+01 0.00E+00 1.31E+01 Fe-59 <4.01E+01 0.00E+00 4.01E+01 Co-60 <9.47E+00 0.00E+00 9.47E+00 Zn-65 <1.87E+01 0.00E+00 1.87E+01 Zr-95 <2.01E+01 0.00E+00 2.01E+01 Nb-95 <1.73E+01 0.00E+00 1.73E+01 I-131 <7.00E+02 0.00E+00 7.00E+02 Cs-134 <6.94E+00 0.00E+00 6.94E+00 Cs-137 <7.17E+00 0.00E+00 7.17E+00 La-140 <3.01E+10 0.00E+00 3.01E+10 Ba-140 <4.40E+02 0.00E+00 4.40E+02 Total-Gam 0.00E+00 Sample ID: 425375 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.56E+01 0.00E+00 2.34E+02 Sample ID: 425937 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.25E+02 0.00E+00 2.26E+02 Sample ID: 426310 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.55E+01 0.00E+00 2.42E+02 Sample ID: 426999 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.58E+02 0.00E+00 2.50E+02 Sample ID: 427647 Sample Dates: 10/4/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.43E+00 0.00E+00 8.43E+00 Co-58 <1.01E+01 0.00E+00 1.01E+01 Fe-59 <1.86E+01 0.00E+00 1.86E+01 Co-60 <7.94E+00 0.00E+00 7.94E+00 Zn-65 <1.66E+01 0.00E+00 1.66E+01 Zr-95 <2.11E+01 0.00E+00 2.11E+01 Nb-95 <1.38E+01 0.00E+00 1.38E+01 I-131 <9.86E+01 0.00E+00 9.86E+01 Cs-134 <5.94E+00 0.00E+00 5.94E+00 Cs-137 <7.43E+00 0.00E+00 7.43E+00 La-140 <2.40E+06 0.00E+00 2.40E+06 Ba-140 <1.47E+02 0.00E+00 1.47E+02 Total-Gam 0.00E+00 Sample ID: 427656 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.73E+00 0.00E+00 2.43E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 93 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 497 Sample Point 497 [ INDICATOR - -- @ 0 miles ]

Sample ID: 428155 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.98E+02 0.00E+00 2.40E+02 Sample ID: 428830 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.80E+02 0.00E+00 2.41E+02 Sample ID: 429348 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.82E+02 0.00E+00 2.48E+02 Sample ID: 429899 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.71E+00 0.00E+00 2.47E+02 Sample ID: 429890 Sample Dates: 11/1/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.00E+00 0.00E+00 7.00E+00 Co-58 <9.65E+00 0.00E+00 9.65E+00 Fe-59 <1.92E+01 0.00E+00 1.92E+01 Co-60 <6.68E+00 0.00E+00 6.68E+00 Zn-65 <1.68E+01 0.00E+00 1.68E+01 Zr-95 <1.81E+01 0.00E+00 1.81E+01 Nb-95 <1.17E+01 0.00E+00 1.17E+01 I-131 <3.00E+01 0.00E+00 3.00E+01 Cs-134 <7.09E+00 0.00E+00 7.09E+00 Cs-137 <7.93E+00 0.00E+00 7.93E+00 La-140 <6.89E+03 0.00E+00 6.89E+03 Ba-140 <5.94E+01 0.00E+00 5.94E+01 Total-Gam 0.00E+00 Sample ID: 430519 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.49E+01 0.00E+00 2.37E+02 Sample ID: 431007 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+01 0.00E+00 2.48E+02 Sample ID: 431415 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.32E+01 0.00E+00 2.57E+02 Sample ID: 431746 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.72E+01 0.00E+00 2.50E+02 Sample ID: 432076 Sample Dates: 12/6/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.37E+00 0.00E+00 8.37E+00 Co-58 <9.05E+00 0.00E+00 9.05E+00 Fe-59 <1.73E+01 0.00E+00 1.73E+01 Co-60 <7.13E+00 0.00E+00 7.13E+00 Zn-65 <1.58E+01 0.00E+00 1.58E+01 Zr-95 <1.40E+01 0.00E+00 1.40E+01 Nb-95 <1.06E+01 0.00E+00 1.06E+01 I-131 <2.22E+01 0.00E+00 2.22E+01 Cs-134 <8.43E+00 0.00E+00 8.43E+00 Cs-137 <6.87E+00 0.00E+00 6.87E+00 La-140 <1.47E+03 0.00E+00 1.47E+03 Ba-140 <5.16E+01 0.00E+00 5.16E+01 Total-Gam 0.00E+00 Sample ID: 432147 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.6E+01 0.00E+00 2.47E+02 Sample Point 498 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400461 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.85E+01 0.00E+00 2.52E+02 Sample ID: 399958 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+02 0.00E+00 2.76E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 94 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 498 Sample Point 498 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400280 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.34E+01 0.00E+00 2.82E+02 Sample ID: 400730 Sample Dates: 1/6/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.55E+00 0.00E+00 7.55E+00 Co-58 <9.27E+00 0.00E+00 9.27E+00 Fe-59 <1.86E+01 0.00E+00 1.86E+01 Co-60 <8.17E+00 0.00E+00 8.17E+00 Zn-65 <1.90E+01 0.00E+00 1.90E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <1.03E+01 0.00E+00 1.03E+01 I-131 <2.65E+01 0.00E+00 2.65E+01 Cs-134 <7.93E+00 0.00E+00 7.93E+00 Cs-137 <7.49E+00 0.00E+00 7.49E+00 La-140 <1.45E+03 0.00E+00 1.45E+03 Ba-140 <5.90E+01 0.00E+00 5.90E+01 Total-Gam 0.00E+00 Sample ID: 400931 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.14E+00 0.00E+00 2.72E+02 Sample ID: 401294 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.3E+00 0.00E+00 2.61E+02 Sample ID: 401757 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.5E+01 0.00E+00 2.74E+02 Sample ID: 402268 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.94E+01 0.00E+00 2.59E+02 Sample ID: 402977 Sample Dates: 2/2/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.15E+00 0.00E+00 9.15E+00 Co-58 <1.28E+01 0.00E+00 1.28E+01 Fe-59 <1.92E+01 0.00E+00 1.92E+01 Co-60 <8.76E+00 0.00E+00 8.76E+00 Zn-65 <2.15E+01 0.00E+00 2.15E+01 Zr-95 <1.93E+01 0.00E+00 1.93E+01 Nb-95 <1.42E+01 0.00E+00 1.42E+01 I-131 <5.64E+01 0.00E+00 5.64E+01 Cs-134 <6.46E+00 0.00E+00 6.46E+00 Cs-137 <8.75E+00 0.00E+00 8.75E+00 La-140 <2.34E+05 0.00E+00 2.34E+05 Ba-140 <1.03E+02 0.00E+00 1.03E+02 Total-Gam 0.00E+00 Sample ID: 402990 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.67E+01 0.00E+00 2.63E+02 Sample ID: 404474 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.18E+02 0.00E+00 2.58E+02 Sample ID: 405360 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.66E+02 Sample ID: 405977 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+01 0.00E+00 2.60E+02 Sample ID: 406308 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+01 0.00E+00 2.53E+02 Sample ID: 406652 Sample Dates: 3/1/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.92E+00 0.00E+00 9.92E+00 Co-58 <1.19E+01 0.00E+00 1.19E+01 Fe-59 <2.64E+01 0.00E+00 2.64E+01 Co-60 <6.91E+00 0.00E+00 6.91E+00 Zn-65 <2.02E+01 0.00E+00 2.02E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 95 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 498 Sample Point 498 [ INDICATOR - -- @ 0 miles ]

Sample ID: 406652 Sample Dates: 3/1/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <1.90E+01 0.00E+00 1.90E+01 Nb-95 <1.26E+01 0.00E+00 1.26E+01 I-131 <3.75E+01 0.00E+00 3.75E+01 Cs-134 <7.96E+00 0.00E+00 7.96E+00 Cs-137 <8.14E+00 0.00E+00 8.14E+00 La-140 <8.07E+03 0.00E+00 8.07E+03 Ba-140 <5.96E+01 0.00E+00 5.96E+01 Total-Gam 0.00E+00 Sample ID: 407505 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <0.00E+00 0.00E+00 2.65E+02 Sample ID: 408059 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.5E+01 0.00E+00 2.70E+02 Sample ID: 409398 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.69E+02 Sample ID: 409732 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.20E+01 0.00E+00 2.49E+02 Sample ID: 410172 Sample Dates: 4/5/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.55E+00 0.00E+00 7.55E+00 Co-58 <1.03E+01 0.00E+00 1.03E+01 Fe-59 <1.98E+01 0.00E+00 1.98E+01 Co-60 <7.56E+00 0.00E+00 7.56E+00 Zn-65 <2.00E+01 0.00E+00 2.00E+01 Zr-95 <1.60E+01 0.00E+00 1.60E+01 Nb-95 <1.30E+01 0.00E+00 1.30E+01 I-131 <2.88E+01 0.00E+00 2.88E+01 Cs-134 <9.23E+00 0.00E+00 9.23E+00 Cs-137 <8.75E+00 0.00E+00 8.75E+00 La-140 <1.38E+03 0.00E+00 1.38E+03 Ba-140 <5.07E+01 0.00E+00 5.07E+01 Total-Gam 0.00E+00 Sample ID: 410885 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.2E+02 0.00E+00 2.71E+02 Sample ID: 411385 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.1E+02 0.00E+00 2.79E+02 Sample ID: 411709 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.1E+01 0.00E+00 2.61E+02 Sample ID: 412171 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.0E+01 0.00E+00 2.78E+02 Sample ID: 412679 Sample Dates: 5/3/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.54E+00 0.00E+00 8.54E+00 Co-58 <1.19E+01 0.00E+00 1.19E+01 Fe-59 <2.47E+01 0.00E+00 2.47E+01 Co-60 <8.42E+00 0.00E+00 8.42E+00 Zn-65 <1.88E+01 0.00E+00 1.88E+01 Zr-95 <1.79E+01 0.00E+00 1.79E+01 Nb-95 <1.60E+01 0.00E+00 1.60E+01 I-131 <7.04E+01 0.00E+00 7.04E+01 Cs-134 <8.37E+00 0.00E+00 8.37E+00 Cs-137 <8.15E+00 0.00E+00 8.15E+00 La-140 <6.98E+05 0.00E+00 6.98E+05 Ba-140 <1.17E+02 0.00E+00 1.17E+02 Total-Gam 0.00E+00 Sample ID: 412688 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.88E+01 0.00E+00 2.60E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 96 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 498 Sample Point 498 [ INDICATOR - -- @ 0 miles ]

Sample ID: 413291 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.63E+02 Sample ID: 413838 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+01 0.00E+00 2.52E+02 Sample ID: 414978 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.8E+01 0.00E+00 2.60E+02 Sample ID: 415343 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.3E+02 0.00E+00 2.73E+02 Sample ID: 415645 Sample Dates: 6/1/2016 - 6/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.13E+00 0.00E+00 9.13E+00 Co-58 <1.20E+01 0.00E+00 1.20E+01 Fe-59 <2.42E+01 0.00E+00 2.42E+01 Co-60 <9.08E+00 0.00E+00 9.08E+00 Zn-65 <2.23E+01 0.00E+00 2.23E+01 Zr-95 <1.77E+01 0.00E+00 1.77E+01 Nb-95 <1.42E+01 0.00E+00 1.42E+01 I-131 <5.91E+01 0.00E+00 5.91E+01 Cs-134 <6.54E+00 0.00E+00 6.53E+00 Cs-137 <7.49E+00 0.00E+00 7.49E+00 La-140 <1.10E+05 0.00E+00 1.10E+05 Ba-140 <9.11E+01 0.00E+00 9.11E+01 Total-Gam 0.00E+00 Sample ID: 416343 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.06E+02 0.00E+00 2.55E+02 Sample ID: 416967 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+00 0.00E+00 2.60E+02 Sample ID: 417360 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.4E+01 0.00E+00 2.51E+02 Sample ID: 417721 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.28E+01 0.00E+00 2.56E+02 Sample ID: 418193 Sample Dates: 7/5/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.76E+00 0.00E+00 7.76E+00 Co-58 <1.11E+01 0.00E+00 1.11E+01 Fe-59 <2.85E+01 0.00E+00 2.85E+01 Co-60 <1.13E+01 0.00E+00 1.13E+01 Zn-65 <2.08E+01 0.00E+00 2.08E+01 Zr-95 <1.69E+01 0.00E+00 1.69E+01 Nb-95 <1.85E+01 0.00E+00 1.85E+01 I-131 <1.06E+02 0.00E+00 1.06E+02 Cs-134 <8.31E+00 0.00E+00 8.31E+00 Cs-137 <8.51E+00 0.00E+00 8.50E+00 La-140 <3.25E+06 0.00E+00 3.25E+06 Ba-140 <1.50E+02 0.00E+00 1.50E+02 Total-Gam 0.00E+00 Sample ID: 418207 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.5E+01 0.00E+00 2.59E+02 Sample ID: 418935 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+02 0.00E+00 2.63E+02 Sample ID: 423161 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.56E+01 0.00E+00 2.62E+02 Sample ID: 423203 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.0E+01 0.00E+00 2.57E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 97 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 498 Sample Point 498 [ INDICATOR - -- @ 0 miles ]

Sample ID: 423218 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.58E+01 0.00E+00 2.67E+02 Sample ID: 424664 Sample Dates: 8/2/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.08E+01 0.00E+00 1.08E+01 Co-58 <1.21E+01 0.00E+00 1.21E+01 Fe-59 <2.38E+01 0.00E+00 2.38E+01 Co-60 <9.12E+00 0.00E+00 9.12E+00 Zn-65 <2.21E+01 0.00E+00 2.21E+01 Zr-95 <2.21E+01 0.00E+00 2.21E+01 Nb-95 <2.03E+01 0.00E+00 2.03E+01 I-131 <1.72E+02 0.00E+00 1.72E+02 Cs-134 <8.80E+00 0.00E+00 8.80E+00 Cs-137 <1.00E+01 0.00E+00 1.00E+01 La-140 <1.86E+07 0.00E+00 1.86E+07 Ba-140 <1.71E+02 0.00E+00 1.71E+02 Total-Gam 0.00E+00 Sample ID: 424345 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.59E+01 0.00E+00 2.61E+02 Sample ID: 427405 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.39E+02 Sample ID: 423259 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.8E+00 0.00E+00 2.36E+02 Sample ID: 424377 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.5E+01 0.00E+00 2.30E+02 Sample ID: 424735 Sample Dates: 9/6/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.88E+00 0.00E+00 8.88E+00 Co-58 <1.40E+01 0.00E+00 1.40E+01 Fe-59 <3.44E+01 0.00E+00 3.44E+01 Co-60 <8.65E+00 0.00E+00 8.65E+00 Zn-65 <1.77E+01 0.00E+00 1.77E+01 Zr-95 <2.35E+01 0.00E+00 2.35E+01 Nb-95 <1.98E+01 0.00E+00 1.98E+01 I-131 <9.14E+02 0.00E+00 9.14E+02 Cs-134 <7.90E+00 0.00E+00 7.90E+00 Cs-137 <8.66E+00 0.00E+00 8.66E+00 La-140 <3.96E+10 0.00E+00 3.96E+10 Ba-140 <3.92E+02 0.00E+00 3.92E+02 Total-Gam 0.00E+00 Sample ID: 425376 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.51E+02 0.00E+00 2.44E+02 Sample ID: 425938 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.06E+02 0.00E+00 2.27E+02 Sample ID: 426311 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.41E+01 0.00E+00 2.42E+02 Sample ID: 427000 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.86E+01 0.00E+00 2.51E+02 Sample ID: 427648 Sample Dates: 10/4/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.55E+00 0.00E+00 7.55E+00 Co-58 <1.15E+01 0.00E+00 1.15E+01 Fe-59 <1.79E+01 0.00E+00 1.79E+01 Co-60 <7.67E+00 0.00E+00 7.67E+00 Zn-65 <2.07E+01 0.00E+00 2.07E+01 Zr-95 <2.01E+01 0.00E+00 2.01E+01 Nb-95 <1.45E+01 0.00E+00 1.45E+01 I-131 <1.21E+02 0.00E+00 1.21E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 98 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 498 Sample Point 498 [ INDICATOR - -- @ 0 miles ]

Sample ID: 427648 Sample Dates: 10/4/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <6.60E+00 0.00E+00 6.60E+00 Cs-137 <7.69E+00 0.00E+00 7.69E+00 La-140 <3.27E+06 0.00E+00 3.27E+06 Ba-140 <1.30E+02 0.00E+00 1.30E+02 Total-Gam 0.00E+00 Sample ID: 427657 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.47E+01 0.00E+00 2.43E+02 Sample ID: 428156 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.08E+02 0.00E+00 2.38E+02 Sample ID: 428831 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.59E+02 0.00E+00 2.42E+02 Sample ID: 429349 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.43E+02 0.00E+00 2.49E+02 Sample ID: 429900 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.71E+02 0.00E+00 2.42E+02 Sample ID: 429891 Sample Dates: 11/1/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.76E+00 0.00E+00 9.76E+00 Co-58 <8.79E+00 0.00E+00 8.79E+00 Fe-59 <1.95E+01 0.00E+00 1.95E+01 Co-60 <7.15E+00 0.00E+00 7.15E+00 Zn-65 <2.34E+01 0.00E+00 2.34E+01 Zr-95 <1.63E+01 0.00E+00 1.63E+01 Nb-95 <1.27E+01 0.00E+00 1.27E+01 I-131 <4.21E+01 0.00E+00 4.21E+01 Cs-134 <6.60E+00 0.00E+00 6.60E+00 Cs-137 <6.58E+00 0.00E+00 6.58E+00 La-140 <4.62E+04 0.00E+00 4.62E+04 Ba-140 <7.02E+01 0.00E+00 7.02E+01 Total-Gam 0.00E+00 Sample ID: 430520 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.20E+01 0.00E+00 2.38E+02 Sample ID: 431008 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.3E+01 0.00E+00 2.49E+02 Sample ID: 431416 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.28E+01 0.00E+00 2.59E+02 Sample ID: 431747 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.0E+01 0.00E+00 2.51E+02 Sample ID: 432077 Sample Dates: 12/6/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.86E+00 0.00E+00 8.86E+00 Co-58 <8.38E+00 0.00E+00 8.38E+00 Fe-59 <1.62E+01 0.00E+00 1.62E+01 Co-60 <6.67E+00 0.00E+00 6.67E+00 Zn-65 <1.39E+01 0.00E+00 1.39E+01 Zr-95 <1.49E+01 0.00E+00 1.49E+01 Nb-95 <9.56E+00 0.00E+00 9.56E+00 I-131 <2.11E+01 0.00E+00 2.11E+01 Cs-134 <6.68E+00 0.00E+00 6.68E+00 Cs-137 <8.41E+00 0.00E+00 8.41E+00 La-140 <1.05E+03 0.00E+00 1.05E+03 Ba-140 <4.52E+01 0.00E+00 4.52E+01 Total-Gam 0.00E+00 Sample ID: 432148 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.6E+00 0.00E+00 2.47E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 99 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 499 Sample Point 499 [ CONTROL - -- @ 0 miles ]

Sample ID: 400463 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.54E+01 0.00E+00 2.54E+02 Sample ID: 399959 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+02 0.00E+00 2.79E+02 Sample ID: 400281 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.3E+01 0.00E+00 2.81E+02 Sample ID: 400731 Sample Dates: 1/6/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.98E+00 0.00E+00 7.98E+00 Co-58 <9.98E+00 0.00E+00 9.98E+00 Fe-59 <2.19E+01 0.00E+00 2.19E+01 Co-60 <9.77E+00 0.00E+00 9.77E+00 Zn-65 <1.61E+01 0.00E+00 1.61E+01 Zr-95 <1.53E+01 0.00E+00 1.53E+01 Nb-95 <9.41E+00 0.00E+00 9.41E+00 I-131 <3.54E+01 0.00E+00 3.54E+01 Cs-134 <9.56E+00 0.00E+00 9.56E+00 Cs-137 <8.45E+00 0.00E+00 8.45E+00 La-140 <9.32E+03 0.00E+00 9.32E+03 Ba-140 <5.77E+01 0.00E+00 5.77E+01 Total-Gam 0.00E+00 Sample ID: 400932 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.27E+01 0.00E+00 2.73E+02 Sample ID: 401295 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.4E+01 0.00E+00 2.63E+02 Sample ID: 401758 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.73E+01 0.00E+00 2.74E+02 Sample ID: 402269 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.6E+01 0.00E+00 2.59E+02 Sample ID: 402978 Sample Dates: 2/2/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.48E+00 0.00E+00 8.48E+00 Co-58 <9.95E+00 0.00E+00 9.95E+00 Fe-59 <2.47E+01 0.00E+00 2.47E+01 Co-60 <6.87E+00 0.00E+00 6.87E+00 Zn-65 <1.64E+01 0.00E+00 1.64E+01 Zr-95 <2.18E+01 0.00E+00 2.18E+01 Nb-95 <1.25E+01 0.00E+00 1.25E+01 I-131 <6.31E+01 0.00E+00 6.31E+01 Cs-134 <8.45E+00 0.00E+00 8.45E+00 Cs-137 <8.75E+00 0.00E+00 8.75E+00 La-140 <2.24E+05 0.00E+00 2.24E+05 Ba-140 <8.38E+01 0.00E+00 8.38E+01 Total-Gam 0.00E+00 Sample ID: 402991 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.5E+01 0.00E+00 2.63E+02 Sample ID: 404475 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.4E+00 0.00E+00 2.56E+02 Sample ID: 405361 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.66E+02 Sample ID: 405978 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.5E+01 0.00E+00 2.60E+02 Sample ID: 406309 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+02 0.00E+00 2.85E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 100 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 499 Sample Point 499 [ CONTROL - -- @ 0 miles ]

Sample ID: 406653 Sample Dates: 3/1/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.02E+01 0.00E+00 1.02E+01 Co-58 <1.16E+01 0.00E+00 1.16E+01 Fe-59 <1.98E+01 0.00E+00 1.98E+01 Co-60 <6.85E+00 0.00E+00 6.85E+00 Zn-65 <1.36E+01 0.00E+00 1.36E+01 Zr-95 <1.69E+01 0.00E+00 1.69E+01 Nb-95 <1.23E+01 0.00E+00 1.23E+01 I-131 <3.77E+01 0.00E+00 3.77E+01 Cs-134 <8.49E+00 0.00E+00 8.49E+00 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <1.06E+04 0.00E+00 1.06E+04 Ba-140 <7.40E+01 0.00E+00 7.40E+01 Total-Gam 0.00E+00 Sample ID: 407506 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.5E+02 0.00E+00 2.65E+02 Sample ID: 408060 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.0E+01 0.00E+00 2.72E+02 Sample ID: 409399 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.3E+01 0.00E+00 2.69E+02 Sample ID: 409733 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.5E+01 0.00E+00 2.50E+02 Sample ID: 410173 Sample Dates: 4/5/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.25E+00 0.00E+00 9.25E+00 Co-58 <6.82E+00 0.00E+00 6.82E+00 Fe-59 <2.08E+01 0.00E+00 2.08E+01 Co-60 <8.38E+00 0.00E+00 8.38E+00 Zn-65 <1.81E+01 0.00E+00 1.81E+01 Zr-95 <1.60E+01 0.00E+00 1.60E+01 Nb-95 <1.24E+01 0.00E+00 1.24E+01 I-131 <2.51E+01 0.00E+00 2.51E+01 Cs-134 <7.39E+00 0.00E+00 7.39E+00 Cs-137 <9.31E+00 0.00E+00 9.31E+00 La-140 <2.33E+03 0.00E+00 2.33E+03 Ba-140 <4.95E+01 0.00E+00 4.95E+01 Total-Gam 0.00E+00 Sample ID: 410886 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.1E+01 0.00E+00 2.71E+02 Sample ID: 411386 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.5E+02 0.00E+00 2.78E+02 Sample ID: 411710 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+01 0.00E+00 2.60E+02 Sample ID: 412172 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.22E+00 0.00E+00 2.77E+02 Sample ID: 412680 Sample Dates: 5/3/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.17E+01 0.00E+00 1.17E+01 Co-58 <1.15E+01 0.00E+00 1.15E+01 Fe-59 <2.49E+01 0.00E+00 2.49E+01 Co-60 <8.79E+00 0.00E+00 8.79E+00 Zn-65 <1.79E+01 0.00E+00 1.79E+01 Zr-95 <2.02E+01 0.00E+00 2.02E+01 Nb-95 <1.82E+01 0.00E+00 1.82E+01 I-131 <1.17E+02 0.00E+00 1.17E+02 Cs-134 <8.06E+00 0.00E+00 8.07E+00 Cs-137 <6.78E+00 0.00E+00 6.78E+00 La-140 <3.96E+06 0.00E+00 3.96E+06 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 101 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 499 Sample Point 499 [ CONTROL - -- @ 0 miles ]

Sample ID: 412680 Sample Dates: 5/3/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Ba-140 <1.59E+02 0.00E+00 1.59E+02 Total-Gam 0.00E+00 Sample ID: 412689 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.59E+01 0.00E+00 2.60E+02 Sample ID: 413292 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.7E+02 0.00E+00 2.63E+02 Sample ID: 413839 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.21E+02 0.00E+00 2.47E+02 Sample ID: 414979 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.59E+02 Sample ID: 415344 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.7E+01 0.00E+00 2.63E+02 Sample ID: 415646 Sample Dates: 6/1/2016 - 6/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.72E+00 0.00E+00 7.71E+00 Co-58 <9.81E+00 0.00E+00 9.81E+00 Fe-59 <1.92E+01 0.00E+00 1.92E+01 Co-60 <8.41E+00 0.00E+00 8.41E+00 Zn-65 <1.96E+01 0.00E+00 1.96E+01 Zr-95 <1.63E+01 0.00E+00 1.63E+01 Nb-95 <1.21E+01 0.00E+00 1.21E+01 I-131 <6.17E+01 0.00E+00 6.17E+01 Cs-134 <8.54E+00 0.00E+00 8.54E+00 Cs-137 <7.14E+00 0.00E+00 7.15E+00 La-140 <1.04E+05 0.00E+00 1.04E+05 Ba-140 <9.13E+01 0.00E+00 9.13E+01 Total-Gam 0.00E+00 Sample ID: 416344 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.90E+00 0.00E+00 2.55E+02 Sample ID: 416968 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.0E+01 0.00E+00 2.60E+02 Sample ID: 417361 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.00E+01 0.00E+00 2.51E+02 Sample ID: 417722 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.2E+01 0.00E+00 2.56E+02 Sample ID: 418194 Sample Dates: 7/5/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.10E+01 0.00E+00 1.10E+01 Co-58 <1.41E+01 0.00E+00 1.41E+01 Fe-59 <1.94E+01 0.00E+00 1.94E+01 Co-60 <9.10E+00 0.00E+00 9.10E+00 Zn-65 <2.18E+01 0.00E+00 2.18E+01 Zr-95 <1.69E+01 0.00E+00 1.69E+01 Nb-95 <1.73E+01 0.00E+00 1.73E+01 I-131 <1.24E+02 0.00E+00 1.24E+02 Cs-134 <7.84E+00 0.00E+00 7.84E+00 Cs-137 <1.08E+01 0.00E+00 1.08E+01 La-140 <3.55E+06 0.00E+00 3.55E+06 Ba-140 <1.47E+02 0.00E+00 1.47E+02 Total-Gam 0.00E+00 Sample ID: 418208 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.1E+01 0.00E+00 2.59E+02 Sample ID: 418936 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+02 0.00E+00 2.61E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 102 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 499 Sample Point 499 [ CONTROL - -- @ 0 miles ]

Sample ID: 423162 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.95E+01 0.00E+00 2.61E+02 Sample ID: 423204 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.4E+01 0.00E+00 2.56E+02 Sample ID: 423219 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.2E+01 0.00E+00 2.69E+02 Sample ID: 424665 Sample Dates: 8/2/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.11E+01 0.00E+00 1.11E+01 Co-58 <1.17E+01 0.00E+00 1.17E+01 Fe-59 <3.86E+01 0.00E+00 3.86E+01 Co-60 <8.53E+00 0.00E+00 8.53E+00 Zn-65 <1.89E+01 0.00E+00 1.89E+01 Zr-95 <2.30E+01 0.00E+00 2.30E+01 Nb-95 <1.79E+01 0.00E+00 1.79E+01 I-131 <2.05E+02 0.00E+00 2.05E+02 Cs-134 <8.59E+00 0.00E+00 8.59E+00 Cs-137 <8.51E+00 0.00E+00 8.51E+00 La-140 <3.89E+07 0.00E+00 3.89E+07 Ba-140 <1.91E+02 0.00E+00 1.91E+02 Total-Gam 0.00E+00 Sample ID: 424347 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.4E+01 0.00E+00 2.62E+02 Sample ID: 427406 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <0.00E+00 0.00E+00 2.40E+02 Sample ID: 423260 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.35E+02 Sample ID: 424378 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.32E+02 0.00E+00 2.25E+02 Sample ID: 424736 Sample Dates: 9/6/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.62E+00 0.00E+00 7.62E+00 Co-58 <1.40E+01 0.00E+00 1.40E+01 Fe-59 <2.57E+01 0.00E+00 2.57E+01 Co-60 <6.70E+00 0.00E+00 6.70E+00 Zn-65 <2.14E+01 0.00E+00 2.14E+01 Zr-95 <2.21E+01 0.00E+00 2.21E+01 Nb-95 <2.09E+01 0.00E+00 2.09E+01 I-131 <7.82E+02 0.00E+00 7.82E+02 Cs-134 <7.99E+00 0.00E+00 7.99E+00 Cs-137 <6.89E+00 0.00E+00 6.89E+00 La-140 <6.14E+10 0.00E+00 6.14E+10 Ba-140 <4.49E+02 0.00E+00 4.49E+02 Total-Gam 0.00E+00 Sample ID: 425377 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.06E+02 0.00E+00 2.43E+02 Sample ID: 425939 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.41E+02 0.00E+00 2.48E+02 Sample ID: 426312 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.72E+00 0.00E+00 2.41E+02 Sample ID: 427001 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.62E+01 0.00E+00 2.37E+02 Sample ID: 427649 Sample Dates: 10/4/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.00E+01 0.00E+00 1.00E+01 Co-58 <8.65E+00 0.00E+00 8.65E+00 Fe-59 <2.77E+01 0.00E+00 2.77E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 103 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 499 Sample Point 499 [ CONTROL - -- @ 0 miles ]

Sample ID: 427649 Sample Dates: 10/4/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Co-60 <7.18E+00 0.00E+00 7.18E+00 Zn-65 <1.76E+01 0.00E+00 1.76E+01 Zr-95 <1.59E+01 0.00E+00 1.59E+01 Nb-95 <1.48E+01 0.00E+00 1.48E+01 I-131 <1.07E+02 0.00E+00 1.07E+02 Cs-134 <8.42E+00 0.00E+00 8.42E+00 Cs-137 <8.65E+00 0.00E+00 8.65E+00 La-140 <4.07E+06 0.00E+00 4.07E+06 Ba-140 <1.48E+02 0.00E+00 1.48E+02 Total-Gam 0.00E+00 Sample ID: 427658 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.6E+01 0.00E+00 2.43E+02 Sample ID: 428157 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.34E+02 0.00E+00 2.40E+02 Sample ID: 428832 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.6E+00 0.00E+00 2.63E+02 Sample ID: 429350 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.00E+02 0.00E+00 2.48E+02 Sample ID: 429901 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.84E+02 0.00E+00 2.41E+02 Sample ID: 429892 Sample Dates: 11/1/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.39E+00 0.00E+00 7.39E+00 Co-58 <9.51E+00 0.00E+00 9.51E+00 Fe-59 <1.98E+01 0.00E+00 1.97E+01 Co-60 <7.92E+00 0.00E+00 7.91E+00 Zn-65 <1.70E+01 0.00E+00 1.70E+01 Zr-95 <1.21E+01 0.00E+00 1.21E+01 Nb-95 <1.15E+01 0.00E+00 1.15E+01 I-131 <4.52E+01 0.00E+00 4.52E+01 Cs-134 <7.31E+00 0.00E+00 7.31E+00 Cs-137 <5.95E+00 0.00E+00 5.95E+00 La-140 <4.82E+04 0.00E+00 4.82E+04 Ba-140 <7.55E+01 0.00E+00 7.55E+01 Total-Gam 0.00E+00 Sample ID: 430521 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.36E+01 0.00E+00 2.36E+02 Sample ID: 431009 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.3E+01 0.00E+00 2.49E+02 Sample ID: 431417 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+00 0.00E+00 2.58E+02 Sample ID: 431748 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.40E+01 0.00E+00 2.51E+02 Sample ID: 432078 Sample Dates: 12/6/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.54E+00 0.00E+00 7.54E+00 Co-58 <7.49E+00 0.00E+00 7.49E+00 Fe-59 <1.97E+01 0.00E+00 1.97E+01 Co-60 <7.30E+00 0.00E+00 7.31E+00 Zn-65 <1.29E+01 0.00E+00 1.29E+01 Zr-95 <1.29E+01 0.00E+00 1.29E+01 Nb-95 <1.09E+01 0.00E+00 1.09E+01 I-131 <2.25E+01 0.00E+00 2.25E+01 Cs-134 <7.78E+00 0.00E+00 7.78E+00 Cs-137 <9.30E+00 0.00E+00 9.30E+00 La-140 <8.72E+02 0.00E+00 8.72E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 104 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 499 Sample Point 499 [ CONTROL - -- @ 0 miles ]

Sample ID: 432078 Sample Dates: 12/6/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Ba-140 <4.60E+01 0.00E+00 4.60E+01 Total-Gam 0.00E+00 Sample ID: 432149 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.6E+01 0.00E+00 2.47E+02 Sample Point 604 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400544 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.37E+02 0.00E+00 2.65E+02 Sample ID: 399960 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW 5.97E+02 1.71E+02 2.72E+02 Sample ID: 400282 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.69E+02 0.00E+00 2.78E+02 Sample ID: 400933 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.08E+02 0.00E+00 2.73E+02 Sample ID: 401296 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW 1.13E+03 1.83E+02 2.77E+02 Sample ID: 401759 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW 5.21E+02 1.63E+02 2.61E+02 Sample ID: 402270 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW 1.90E+03 1.86E+02 2.61E+02 Sample ID: 402992 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW 6.94E+02 1.76E+02 2.78E+02 Sample ID: 404476 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW 3.05E+03 2.03E+02 2.60E+02 Sample ID: 405362 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW 6.40E+02 1.70E+02 2.68E+02 Sample ID: 405979 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.4E+01 0.00E+00 2.84E+02 Sample ID: 406310 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW 1.11E+03 1.72E+02 2.58E+02 Sample ID: 407507 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.62E+01 0.00E+00 2.72E+02 Sample ID: 408061 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.67E+01 0.00E+00 2.67E+02 Sample ID: 409400 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+01 0.00E+00 2.60E+02 Sample ID: 409734 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.70E+01 0.00E+00 2.52E+02 Sample ID: 410887 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.69E+02 0.00E+00 2.76E+02 Sample ID: 411387 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.05E+02 0.00E+00 2.58E+02 Sample ID: 411711 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.93E+01 0.00E+00 2.56E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 105 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 604 Sample Point 604 [ INDICATOR - -- @ 0 miles ]

Sample ID: 412173 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.03E+02 0.00E+00 2.58E+02 Sample ID: 412690 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.53E+01 0.00E+00 2.60E+02 Sample ID: 413293 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.3E+01 0.00E+00 2.63E+02 Sample ID: 413840 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW 1.64E+03 1.75E+02 2.46E+02 Sample ID: 414980 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.37E+01 0.00E+00 2.76E+02 Sample ID: 415345 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.09E+02 0.00E+00 2.48E+02 Sample ID: 416345 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.32E+01 0.00E+00 2.62E+02 Sample ID: 416969 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.10E+02 0.00E+00 2.71E+02 Sample ID: 417362 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW 9.10E+02 1.68E+02 2.57E+02 Sample ID: 417723 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.09E+02 0.00E+00 2.53E+02 Sample ID: 418209 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.24E+01 0.00E+00 2.61E+02 Sample ID: 418937 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.0E+01 0.00E+00 2.78E+02 Sample ID: 423169 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW 5.17E+02 1.34E+02 2.12E+02 Sample ID: 423211 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.23E+02 0.00E+00 2.55E+02 Sample ID: 423225 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.17E+01 0.00E+00 2.66E+02 Sample ID: 424355 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.71E+02 0.00E+00 2.61E+02 Sample ID: 427536 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.85E+01 0.00E+00 2.38E+02 Sample ID: 423261 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.78E+02 0.00E+00 2.27E+02 Sample ID: 424379 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.05E+01 0.00E+00 2.47E+02 Sample ID: 425378 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.93E+02 0.00E+00 2.36E+02 Sample ID: 425940 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW 2.55E+02 1.50E+02 2.48E+02 Sample ID: 426313 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW 6.41E+03 2.47E+02 2.52E+02 Sample ID: 427002 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.62E+00 0.00E+00 2.50E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 106 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 604 Sample Point 604 [ INDICATOR - -- @ 0 miles ]

Sample ID: 427659 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.28E+01 0.00E+00 2.47E+02 Sample ID: 428158 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.67E+02 0.00E+00 2.30E+02 Sample ID: 428833 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW 8.35E+02 1.59E+02 2.45E+02 Sample ID: 429351 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.10E+02 0.00E+00 2.41E+02 Sample ID: 429902 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW 3.37E+03 2.02E+02 2.43E+02 Sample ID: 430522 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW 3.17E+02 1.48E+02 2.42E+02 Sample ID: 431010 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW 2.85E+02 1.49E+02 2.45E+02 Sample ID: 431418 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW 1.06E+03 1.70E+02 2.55E+02 Sample ID: 431749 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW 2.88E+02 1.43E+02 2.34E+02 Sample ID: 432150 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW 1.93E+03 1.71E+02 2.33E+02 Sample Point 605 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400464 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.41E+01 0.00E+00 2.53E+02 Sample ID: 399961 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.78E+02 Sample ID: 400283 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.91E+01 0.00E+00 2.81E+02 Sample ID: 400934 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.11E+02 0.00E+00 2.74E+02 Sample ID: 401297 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.3E+00 0.00E+00 2.82E+02 Sample ID: 401760 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <0.00E+00 0.00E+00 2.74E+02 Sample ID: 402271 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.78E+01 0.00E+00 2.61E+02 Sample ID: 402993 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.7E+01 0.00E+00 2.64E+02 Sample ID: 404477 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.13E+02 0.00E+00 2.59E+02 Sample ID: 405363 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.65E+02 Sample ID: 405980 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.60E+02 Sample ID: 406311 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.6E+02 0.00E+00 2.84E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 107 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 605 Sample Point 605 [ INDICATOR - -- @ 0 miles ]

Sample ID: 407508 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.65E+02 Sample ID: 408062 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.45E+01 0.00E+00 2.67E+02 Sample ID: 409401 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.6E+01 0.00E+00 2.61E+02 Sample ID: 409735 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.48E+02 0.00E+00 2.49E+02 Sample ID: 410888 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.25E+01 0.00E+00 2.58E+02 Sample ID: 411388 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.3E+02 0.00E+00 2.78E+02 Sample ID: 411712 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.7E+01 0.00E+00 2.56E+02 Sample ID: 412174 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.70E+01 0.00E+00 2.60E+02 Sample ID: 412691 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+00 0.00E+00 2.61E+02 Sample ID: 413294 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+02 0.00E+00 2.63E+02 Sample ID: 413841 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.67E+01 0.00E+00 2.47E+02 Sample ID: 414981 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.9E+01 0.00E+00 2.61E+02 Sample ID: 415346 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.7E+01 0.00E+00 2.55E+02 Sample ID: 416346 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+00 0.00E+00 2.54E+02 Sample ID: 416970 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.2E+02 0.00E+00 2.58E+02 Sample ID: 417363 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.46E+01 0.00E+00 2.51E+02 Sample ID: 417724 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.83E+02 Sample ID: 418210 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.92E+01 0.00E+00 2.58E+02 Sample ID: 418938 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.77E+01 0.00E+00 2.49E+02 Sample ID: 423163 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.90E+01 0.00E+00 2.63E+02 Sample ID: 423205 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.32E+02 0.00E+00 2.56E+02 Sample ID: 423220 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.2E+01 0.00E+00 2.77E+02 Sample ID: 424348 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.35E+01 0.00E+00 2.60E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 108 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 605 Sample Point 605 [ INDICATOR - -- @ 0 miles ]

Sample ID: 427407 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.2E+01 0.00E+00 2.39E+02 Sample ID: 423262 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.87E+01 0.00E+00 2.34E+02 Sample ID: 424380 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.87E+01 0.00E+00 2.24E+02 Sample ID: 425379 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.05E+02 0.00E+00 2.46E+02 Sample ID: 425941 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.33E+02 0.00E+00 2.46E+02 Sample ID: 426314 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW 3.03E+02 1.46E+02 2.39E+02 Sample ID: 427003 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.85E+02 0.00E+00 2.50E+02 Sample ID: 427660 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.5E+00 0.00E+00 2.43E+02 Sample ID: 428159 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.29E+02 0.00E+00 2.28E+02 Sample ID: 428834 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.83E+01 0.00E+00 2.45E+02 Sample ID: 429352 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.28E+01 0.00E+00 2.49E+02 Sample ID: 429903 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.25E+02 0.00E+00 2.41E+02 Sample ID: 430523 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.44E+02 0.00E+00 2.37E+02 Sample ID: 431011 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.65E+01 0.00E+00 2.46E+02 Sample ID: 431419 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.8E+01 0.00E+00 2.59E+02 Sample ID: 431750 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.1E+01 0.00E+00 2.52E+02 Sample ID: 432151 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.39E+02 0.00E+00 2.48E+02 Sample Point 606 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400465 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.47E+01 0.00E+00 2.55E+02 Sample ID: 399962 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.6E+02 0.00E+00 2.77E+02 Sample ID: 400284 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.2E+01 0.00E+00 2.83E+02 Sample ID: 400935 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.1E+01 0.00E+00 2.74E+02 Sample ID: 401298 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.7E+01 0.00E+00 2.79E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 109 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 606 Sample Point 606 [ INDICATOR - -- @ 0 miles ]

Sample ID: 401761 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.9E+01 0.00E+00 2.70E+02 Sample ID: 402272 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.1E+01 0.00E+00 2.59E+02 Sample ID: 402994 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.8E+01 0.00E+00 2.63E+02 Sample ID: 404478 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.59E+02 0.00E+00 2.58E+02 Sample ID: 405364 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.66E+02 Sample ID: 405981 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.1E+01 0.00E+00 2.60E+02 Sample ID: 406312 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.2E+02 0.00E+00 2.82E+02 Sample ID: 407509 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+02 0.00E+00 2.63E+02 Sample ID: 408063 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.9E+01 0.00E+00 2.68E+02 Sample ID: 409402 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.59E+02 Sample ID: 409736 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.50E+02 Sample ID: 410889 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.0E+01 0.00E+00 2.57E+02 Sample ID: 411389 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.2E+02 0.00E+00 2.78E+02 Sample ID: 411713 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.7E+01 0.00E+00 2.54E+02 Sample ID: 412175 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.87E+01 0.00E+00 2.58E+02 Sample ID: 412692 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <0.00E+00 0.00E+00 2.63E+02 Sample ID: 413295 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+02 0.00E+00 2.63E+02 Sample ID: 413842 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.09E+02 0.00E+00 2.47E+02 Sample ID: 414982 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.58E+02 Sample ID: 415347 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.7E+01 0.00E+00 2.57E+02 Sample ID: 416347 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.32E+01 0.00E+00 2.52E+02 Sample ID: 416971 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.96E+01 0.00E+00 2.72E+02 Sample ID: 417364 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.89E+00 0.00E+00 2.51E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 110 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 606 Sample Point 606 [ INDICATOR - -- @ 0 miles ]

Sample ID: 417725 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.68E+01 0.00E+00 2.74E+02 Sample ID: 418211 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.6E+01 0.00E+00 2.57E+02 Sample ID: 418939 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.01E+01 0.00E+00 2.49E+02 Sample ID: 423164 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.09E+02 0.00E+00 2.63E+02 Sample ID: 423206 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.8E+01 0.00E+00 2.56E+02 Sample ID: 423227 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.56E+01 0.00E+00 2.67E+02 Sample ID: 424349 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.2E+01 0.00E+00 2.60E+02 Sample ID: 427408 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.2E+02 0.00E+00 2.39E+02 Sample ID: 423263 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.5E+01 0.00E+00 2.34E+02 Sample ID: 424381 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.2E+01 0.00E+00 2.25E+02 Sample ID: 425380 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.77E+01 0.00E+00 2.46E+02 Sample ID: 425942 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.80E+02 0.00E+00 2.25E+02 Sample ID: 426315 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW 3.52E+02 1.47E+02 2.38E+02 Sample ID: 427004 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.73E+02 0.00E+00 2.50E+02 Sample ID: 427661 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.15E+02 0.00E+00 2.43E+02 Sample ID: 428160 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.91E+02 0.00E+00 2.28E+02 Sample ID: 428835 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.89E+01 0.00E+00 2.44E+02 Sample ID: 429353 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.42E+02 0.00E+00 2.46E+02 Sample ID: 429904 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.72E+02 0.00E+00 2.43E+02 Sample ID: 430524 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.24E+01 0.00E+00 2.35E+02 Sample ID: 431012 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.02E+02 0.00E+00 2.47E+02 Sample ID: 431420 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.5E+00 0.00E+00 2.58E+02 Sample ID: 431751 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.50E+01 0.00E+00 2.51E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 111 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 606 Sample Point 606 [ INDICATOR - -- @ 0 miles ]

Sample ID: 432152 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.8E+01 0.00E+00 2.46E+02 Sample Point 607 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400466 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.72E+01 0.00E+00 2.54E+02 Sample ID: 399963 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+02 0.00E+00 2.76E+02 Sample ID: 400285 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.88E+01 0.00E+00 2.81E+02 Sample ID: 400936 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.05E+00 0.00E+00 2.74E+02 Sample ID: 401299 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.36E+01 0.00E+00 2.78E+02 Sample ID: 401762 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.4E+01 0.00E+00 2.75E+02 Sample ID: 402273 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.41E+01 0.00E+00 2.60E+02 Sample ID: 402995 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.6E+01 0.00E+00 2.65E+02 Sample ID: 404479 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.87E+02 0.00E+00 2.57E+02 Sample ID: 405365 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.1E+02 0.00E+00 2.66E+02 Sample ID: 405982 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.60E+02 Sample ID: 406313 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.5E+02 0.00E+00 2.81E+02 Sample ID: 407510 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.2E+01 0.00E+00 2.64E+02 Sample ID: 408064 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.7E+01 0.00E+00 2.69E+02 Sample ID: 409403 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.0E+01 0.00E+00 2.72E+02 Sample ID: 409737 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.99E+01 0.00E+00 2.50E+02 Sample ID: 410890 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.56E+02 Sample ID: 411390 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+02 0.00E+00 2.78E+02 Sample ID: 411714 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.76E+01 0.00E+00 2.57E+02 Sample ID: 412176 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.6E+01 0.00E+00 2.58E+02 Sample ID: 412693 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+01 0.00E+00 2.61E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 112 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 607 Sample Point 607 [ INDICATOR - -- @ 0 miles ]

Sample ID: 413296 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.62E+02 Sample ID: 413843 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.96E+01 0.00E+00 2.46E+02 Sample ID: 414983 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.6E+01 0.00E+00 2.58E+02 Sample ID: 415348 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.6E+02 0.00E+00 2.56E+02 Sample ID: 416348 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.50E+01 0.00E+00 2.52E+02 Sample ID: 416972 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.87E+01 0.00E+00 2.73E+02 Sample ID: 417365 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.21E+01 0.00E+00 2.56E+02 Sample ID: 417726 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.29E+02 0.00E+00 2.77E+02 Sample ID: 418212 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.9E+01 0.00E+00 2.58E+02 Sample ID: 418940 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.62E+02 0.00E+00 2.49E+02 Sample ID: 423165 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.55E+01 0.00E+00 2.62E+02 Sample ID: 423207 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.67E+01 0.00E+00 2.57E+02 Sample ID: 423221 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.6E+01 0.00E+00 2.69E+02 Sample ID: 424350 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+01 0.00E+00 2.59E+02 Sample ID: 427409 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.7E+01 0.00E+00 2.39E+02 Sample ID: 423264 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.4E+01 0.00E+00 2.34E+02 Sample ID: 424382 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.77E+01 0.00E+00 2.25E+02 Sample ID: 425381 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.68E+02 0.00E+00 2.47E+02 Sample ID: 425943 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.01E+02 0.00E+00 2.26E+02 Sample ID: 426316 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW 3.17E+02 1.46E+02 2.39E+02 Sample ID: 427005 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.33E+02 0.00E+00 2.49E+02 Sample ID: 427662 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.79E+01 0.00E+00 2.42E+02 Sample ID: 428161 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.96E+02 0.00E+00 2.27E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 113 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 607 Sample Point 607 [ INDICATOR - -- @ 0 miles ]

Sample ID: 428836 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.1E+01 0.00E+00 2.46E+02 Sample ID: 429354 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.41E+01 0.00E+00 2.43E+02 Sample ID: 429905 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.16E+00 0.00E+00 2.48E+02 Sample ID: 430525 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.08E+01 0.00E+00 2.40E+02 Sample ID: 431013 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.99E+01 0.00E+00 2.46E+02 Sample ID: 431421 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.1E+01 0.00E+00 2.58E+02 Sample ID: 431752 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.71E+01 0.00E+00 2.52E+02 Sample ID: 432153 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.18E+01 0.00E+00 2.47E+02 Sample Point 608 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400541 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.78E+01 0.00E+00 2.66E+02 Sample ID: 399964 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.12E+02 0.00E+00 2.73E+02 Sample ID: 400286 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.18E+00 0.00E+00 2.79E+02 Sample ID: 400937 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.4E+01 0.00E+00 2.74E+02 Sample ID: 401300 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.57E+01 0.00E+00 2.78E+02 Sample ID: 401763 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.4E+01 0.00E+00 2.76E+02 Sample ID: 402274 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.2E+01 0.00E+00 2.59E+02 Sample ID: 402996 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.49E+01 0.00E+00 2.71E+02 Sample ID: 404480 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.68E+02 0.00E+00 2.62E+02 Sample ID: 405366 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.2E+01 0.00E+00 2.71E+02 Sample ID: 405983 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+02 0.00E+00 2.85E+02 Sample ID: 406314 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.32E+01 0.00E+00 2.58E+02 Sample ID: 407511 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.01E+01 0.00E+00 2.73E+02 Sample ID: 408065 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.8E+01 0.00E+00 2.70E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 114 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 608 Sample Point 608 [ INDICATOR - -- @ 0 miles ]

Sample ID: 409404 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.5E+01 0.00E+00 2.74E+02 Sample ID: 409738 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.65E+02 Sample ID: 410891 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.57E+02 Sample ID: 411391 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.86E+00 0.00E+00 2.58E+02 Sample ID: 411715 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.33E+01 0.00E+00 2.59E+02 Sample ID: 412177 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.41E+01 0.00E+00 2.59E+02 Sample ID: 412694 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.62E+01 0.00E+00 2.60E+02 Sample ID: 413297 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.75E+01 0.00E+00 2.65E+02 Sample ID: 413844 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.98E+01 0.00E+00 2.45E+02 Sample ID: 414984 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.74E+02 Sample ID: 415349 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.9E+01 0.00E+00 2.57E+02 Sample ID: 416349 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+01 0.00E+00 2.62E+02 Sample ID: 416973 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+01 0.00E+00 2.74E+02 Sample ID: 417366 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.99E+01 0.00E+00 2.57E+02 Sample ID: 417727 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.45E+02 0.00E+00 2.56E+02 Sample ID: 418213 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.13E+01 0.00E+00 2.58E+02 Sample ID: 418941 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+02 0.00E+00 2.85E+02 Sample ID: 423166 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.07E+02 0.00E+00 2.59E+02 Sample ID: 423208 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.9E+01 0.00E+00 2.56E+02 Sample ID: 423223 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.3E+01 0.00E+00 2.66E+02 Sample ID: 424351 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.45E+02 0.00E+00 2.59E+02 Sample ID: 427537 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.0E+01 0.00E+00 2.38E+02 Sample ID: 423265 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.02E+02 0.00E+00 2.28E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 115 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 608 Sample Point 608 [ INDICATOR - -- @ 0 miles ]

Sample ID: 424383 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.42E+01 0.00E+00 2.47E+02 Sample ID: 425382 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.59E+01 0.00E+00 2.36E+02 Sample ID: 425944 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.24E+02 0.00E+00 2.47E+02 Sample ID: 426317 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.22E+02 0.00E+00 2.52E+02 Sample ID: 427006 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.7E+01 0.00E+00 2.51E+02 Sample ID: 427663 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.47E+02 Sample ID: 428162 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.69E+02 0.00E+00 2.28E+02 Sample ID: 428837 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.23E+01 0.00E+00 2.45E+02 Sample ID: 429355 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.9E+01 0.00E+00 2.44E+02 Sample ID: 429906 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.21E+02 0.00E+00 2.43E+02 Sample ID: 430526 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.26E+01 0.00E+00 2.41E+02 Sample ID: 431014 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.05E+01 0.00E+00 2.47E+02 Sample ID: 431422 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.1E+01 0.00E+00 2.53E+02 Sample ID: 431753 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.33E+02 0.00E+00 2.33E+02 Sample ID: 432154 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.37E+02 0.00E+00 2.35E+02 Sample Point 609 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400542 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.1E+01 0.00E+00 2.66E+02 Sample ID: 399965 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.67E+01 0.00E+00 2.72E+02 Sample ID: 400287 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.8E+01 0.00E+00 2.81E+02 Sample ID: 400938 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.77E+01 0.00E+00 2.74E+02 Sample ID: 401301 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.71E+01 0.00E+00 2.79E+02 Sample ID: 401764 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-3.7E+01 0.00E+00 2.76E+02 Sample ID: 402275 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.68E+01 0.00E+00 2.60E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 116 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 609 Sample Point 609 [ INDICATOR - -- @ 0 miles ]

Sample ID: 402997 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.77E+01 0.00E+00 2.72E+02 Sample ID: 404481 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.05E+02 0.00E+00 2.60E+02 Sample ID: 405367 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.42E+01 0.00E+00 2.70E+02 Sample ID: 405984 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.84E+02 Sample ID: 406315 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.5E+01 0.00E+00 2.58E+02 Sample ID: 407512 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+02 0.00E+00 2.74E+02 Sample ID: 408066 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.22E+01 0.00E+00 2.69E+02 Sample ID: 409405 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.5E+02 0.00E+00 2.71E+02 Sample ID: 409739 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.37E+02 0.00E+00 2.51E+02 Sample ID: 410892 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.9E+01 0.00E+00 2.57E+02 Sample ID: 411392 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.58E+02 Sample ID: 411716 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.41E+02 0.00E+00 2.57E+02 Sample ID: 412178 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+01 0.00E+00 2.58E+02 Sample ID: 412695 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.98E+01 0.00E+00 2.60E+02 Sample ID: 413298 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+02 0.00E+00 2.64E+02 Sample ID: 413845 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.82E+01 0.00E+00 2.46E+02 Sample ID: 414985 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.76E+02 Sample ID: 415350 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.3E+01 0.00E+00 2.56E+02 Sample ID: 416350 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.52E+01 0.00E+00 2.65E+02 Sample ID: 416974 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-9.3E+01 0.00E+00 2.76E+02 Sample ID: 417367 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.41E+01 0.00E+00 2.57E+02 Sample ID: 417728 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.29E+01 0.00E+00 2.56E+02 Sample ID: 418214 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.60E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 117 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 609 Sample Point 609 [ INDICATOR - -- @ 0 miles ]

Sample ID: 418942 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+02 0.00E+00 2.75E+02 Sample ID: 423167 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.08E+02 0.00E+00 2.21E+02 Sample ID: 423209 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.2E+01 0.00E+00 2.59E+02 Sample ID: 423224 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.7E+01 0.00E+00 2.67E+02 Sample ID: 424352 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.69E+02 0.00E+00 2.60E+02 Sample ID: 427538 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.0E+01 0.00E+00 2.38E+02 Sample ID: 423266 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.0E+01 0.00E+00 2.28E+02 Sample ID: 424384 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.79E+00 0.00E+00 2.50E+02 Sample ID: 425383 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.2E+00 0.00E+00 2.37E+02 Sample ID: 425945 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.37E+01 0.00E+00 2.49E+02 Sample ID: 426318 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.21E+01 0.00E+00 2.51E+02 Sample ID: 427007 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.9E+01 0.00E+00 2.52E+02 Sample ID: 427664 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.98E+01 0.00E+00 2.48E+02 Sample ID: 428163 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.23E+02 0.00E+00 2.29E+02 Sample ID: 428838 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.25E+01 0.00E+00 2.45E+02 Sample ID: 429356 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.4E+01 0.00E+00 2.43E+02 Sample ID: 429907 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.90E+02 0.00E+00 2.43E+02 Sample ID: 430527 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.33E+02 0.00E+00 2.40E+02 Sample ID: 431015 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-6.2E+01 0.00E+00 2.47E+02 Sample ID: 431423 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.63E+01 0.00E+00 2.33E+02 Sample ID: 431754 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.41E+01 0.00E+00 2.34E+02 Sample ID: 432155 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.29E+01 0.00E+00 2.34E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 118 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 610 Sample Point 610 [ INDICATOR - -- @ 0 miles ]

Sample ID: 400543 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.8E+01 0.00E+00 2.67E+02 Sample ID: 399966 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <3.07E+01 0.00E+00 2.73E+02 Sample ID: 400288 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.7E+02 0.00E+00 2.80E+02 Sample ID: 400939 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+01 0.00E+00 2.74E+02 Sample ID: 401302 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.77E+01 0.00E+00 2.77E+02 Sample ID: 401765 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.1E+00 0.00E+00 2.76E+02 Sample ID: 402276 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.25E+00 0.00E+00 2.59E+02 Sample ID: 402998 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.29E+01 0.00E+00 2.71E+02 Sample ID: 404482 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.97E+02 0.00E+00 2.61E+02 Sample ID: 405368 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.07E+01 0.00E+00 2.70E+02 Sample ID: 405985 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.9E+02 0.00E+00 2.84E+02 Sample ID: 406316 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.19E+02 0.00E+00 2.58E+02 Sample ID: 407513 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.72E+02 Sample ID: 408067 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.5E+01 0.00E+00 2.68E+02 Sample ID: 409406 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.6E+01 0.00E+00 2.72E+02 Sample ID: 409740 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.75E+01 0.00E+00 2.51E+02 Sample ID: 410893 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+00 0.00E+00 2.56E+02 Sample ID: 411393 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.3E+01 0.00E+00 2.58E+02 Sample ID: 411717 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.12E+01 0.00E+00 2.56E+02 Sample ID: 412179 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA H3SW <4.68E+01 0.00E+00 2.58E+02 Sample ID: 412696 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.2E+01 0.00E+00 2.60E+02 Sample ID: 413299 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.2E+02 0.00E+00 2.62E+02 Sample ID: 413846 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA H3SW <8.75E+01 0.00E+00 2.46E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 119 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 610 Sample Point 610 [ INDICATOR - -- @ 0 miles ]

Sample ID: 414986 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.3E+02 0.00E+00 2.75E+02 Sample ID: 415351 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-5.4E+01 0.00E+00 2.54E+02 Sample ID: 416351 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.6E+00 0.00E+00 2.63E+02 Sample ID: 416975 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.04E+01 0.00E+00 2.72E+02 Sample ID: 417368 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <0.00E+00 0.00E+00 2.57E+02 Sample ID: 417729 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.00E+02 0.00E+00 2.54E+02 Sample ID: 418215 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.0E+02 0.00E+00 2.58E+02 Sample ID: 418943 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.8E+02 0.00E+00 2.80E+02 Sample ID: 423168 Sample Dates: 8/9/2016 - 8/9/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.6E+01 0.00E+00 2.65E+02 Sample ID: 423210 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-7.6E+00 0.00E+00 2.56E+02 Sample ID: 423222 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.2E+02 0.00E+00 2.74E+02 Sample ID: 424353 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA H3SW <9.50E+01 0.00E+00 2.59E+02 Sample ID: 427539 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-4.2E+01 0.00E+00 2.39E+02 Sample ID: 423267 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.61E+01 0.00E+00 2.26E+02 Sample ID: 424385 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.89E+00 0.00E+00 2.50E+02 Sample ID: 425384 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.30E+01 0.00E+00 2.36E+02 Sample ID: 425946 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.96E+02 0.00E+00 2.48E+02 Sample ID: 426319 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.43E+01 0.00E+00 2.50E+02 Sample ID: 427008 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.4E+01 0.00E+00 2.50E+02 Sample ID: 427665 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.1E+02 0.00E+00 2.46E+02 Sample ID: 428164 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.84E+02 0.00E+00 2.27E+02 Sample ID: 428839 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-2.6E+01 0.00E+00 2.45E+02 Sample ID: 429357 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-8.2E+01 0.00E+00 2.42E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 120 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 610 Sample Point 610 [ INDICATOR - -- @ 0 miles ]

Sample ID: 429908 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA H3SW <6.12E+01 0.00E+00 2.71E+02 Sample ID: 430528 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA H3SW <-1.9E+01 0.00E+00 2.41E+02 Sample ID: 431016 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA H3SW <7.08E+01 0.00E+00 2.47E+02 Sample ID: 431424 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA H3SW <2.14E+02 0.00E+00 2.34E+02 Sample ID: 431755 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA H3SW <1.87E+02 0.00E+00 2.34E+02 Sample ID: 432156 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA H3SW <5.36E+01 0.00E+00 2.34E+02 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 400097 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.97E+00 0.00E+00 9.97E+00 Co-58 <1.02E+01 0.00E+00 1.02E+01 Fe-59 <2.38E+01 0.00E+00 2.38E+01 Co-60 <9.24E+00 0.00E+00 9.24E+00 Zn-65 <3.96E+01 0.00E+00 3.96E+01 Zr-95 <2.46E+01 0.00E+00 2.46E+01 Nb-95 <1.02E+01 0.00E+00 1.02E+01 I-131 <2.08E+01 0.00E+00 2.08E+01 Cs-134 <9.53E+00 0.00E+00 9.53E+00 Cs-137 <1.92E+01 0.00E+00 1.92E+01 La-140 <2.25E+02 0.00E+00 2.25E+02 Ba-140 <6.87E+01 0.00E+00 6.87E+01 Total-Gam 0.00E+00 Sample ID: 399951 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.87E+01 0.00E+00 1.87E+01 Co-58 <1.64E+01 0.00E+00 1.64E+01 Fe-59 <2.99E+01 0.00E+00 2.99E+01 Co-60 <1.60E+01 0.00E+00 1.60E+01 Zn-65 <3.56E+01 0.00E+00 3.56E+01 Zr-95 <2.51E+01 0.00E+00 2.51E+01 Nb-95 <2.11E+01 0.00E+00 2.11E+01 I-131 <3.10E+01 0.00E+00 3.10E+01 Cs-134 <1.37E+01 0.00E+00 1.37E+01 Cs-137 <1.17E+01 0.00E+00 1.17E+01 La-140 <3.86E+02 0.00E+00 3.86E+02 Ba-140 <9.41E+01 0.00E+00 9.41E+01 Total-Gam 0.00E+00 Sample ID: 400273 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.21E+01 0.00E+00 1.21E+01 Co-58 <1.54E+01 0.00E+00 1.54E+01 Fe-59 <3.14E+01 0.00E+00 3.14E+01 Co-60 <9.22E+00 0.00E+00 9.22E+00 Zn-65 <3.50E+01 0.00E+00 3.50E+01 Zr-95 <2.03E+01 0.00E+00 2.03E+01 Nb-95 <9.37E+00 0.00E+00 9.37E+00 I-131 <1.84E+01 0.00E+00 1.84E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <4.41E+01 0.00E+00 4.41E+01 Ba-140 <4.09E+01 0.00E+00 4.09E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 121 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 400924 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.78E+01 0.00E+00 1.78E+01 Fe-59 <2.95E+01 0.00E+00 2.95E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.07E+01 0.00E+00 3.07E+01 Zr-95 <1.24E+01 0.00E+00 1.24E+01 Nb-95 <1.80E+01 0.00E+00 1.80E+01 I-131 <1.96E+01 0.00E+00 1.96E+01 Cs-134 <1.12E+01 0.00E+00 1.12E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <2.19E+02 0.00E+00 2.19E+02 Ba-140 <8.56E+01 0.00E+00 8.56E+01 Total-Gam 0.00E+00 Sample ID: 401287 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.13E+01 0.00E+00 2.13E+01 Co-58 <1.28E+01 0.00E+00 1.28E+01 Fe-59 <1.75E+01 0.00E+00 1.75E+01 Co-60 <9.24E+00 0.00E+00 9.24E+00 Zn-65 <1.78E+01 0.00E+00 1.78E+01 Zr-95 <3.10E+01 0.00E+00 3.10E+01 Nb-95 <1.70E+01 0.00E+00 1.70E+01 I-131 <3.37E+01 0.00E+00 3.37E+01 Cs-134 <1.66E+01 0.00E+00 1.66E+01 Cs-137 <1.17E+01 0.00E+00 1.17E+01 La-140 <4.69E+02 0.00E+00 4.69E+02 Ba-140 <9.46E+01 0.00E+00 9.46E+01 Total-Gam 0.00E+00 Sample ID: 401750 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <0.00E+00 0.00E+00 0.00E+00 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <1.78E+01 0.00E+00 1.78E+01 Co-60 <9.25E+00 0.00E+00 9.25E+00 Zn-65 <1.79E+01 0.00E+00 1.79E+01 Zr-95 <2.22E+01 0.00E+00 2.22E+01 Nb-95 <1.74E+01 0.00E+00 1.74E+01 I-131 <3.49E+01 0.00E+00 3.49E+01 Cs-134 <1.46E+01 0.00E+00 1.46E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <9.85E+02 0.00E+00 9.85E+02 Ba-140 <7.14E+01 0.00E+00 7.14E+01 Total-Gam 0.00E+00 Sample ID: 402261 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.23E+01 0.00E+00 1.23E+01 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <3.56E+01 0.00E+00 3.56E+01 Co-60 <1.85E+01 0.00E+00 1.85E+01 Zn-65 <1.79E+01 0.00E+00 1.79E+01 Zr-95 <2.56E+01 0.00E+00 2.56E+01 Nb-95 <1.74E+01 0.00E+00 1.74E+01 I-131 <2.86E+01 0.00E+00 2.86E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <5.13E+02 0.00E+00 5.13E+02 Ba-140 <8.38E+01 0.00E+00 8.38E+01 Total-Gam 0.00E+00 Sample ID: 402983 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.59E+01 0.00E+00 1.59E+01 Co-58 <1.30E+01 0.00E+00 1.30E+01 Fe-59 <2.52E+01 0.00E+00 2.52E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 122 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 402983 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Zn-65 <2.53E+01 0.00E+00 2.53E+01 Zr-95 <2.57E+01 0.00E+00 2.57E+01 Nb-95 <1.56E+01 0.00E+00 1.56E+01 I-131 <2.90E+01 0.00E+00 2.90E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <7.75E+02 0.00E+00 7.75E+02 Ba-140 <7.82E+01 0.00E+00 7.82E+01 Total-Gam 0.00E+00 Sample ID: 404467 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.22E+01 0.00E+00 1.22E+01 Co-58 <1.78E+01 0.00E+00 1.78E+01 Fe-59 <1.70E+01 0.00E+00 1.70E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.97E+01 0.00E+00 3.97E+01 Zr-95 <1.51E+01 0.00E+00 1.51E+01 Nb-95 <1.80E+01 0.00E+00 1.80E+01 I-131 <2.57E+01 0.00E+00 2.57E+01 Cs-134 <1.46E+01 0.00E+00 1.46E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <3.06E+02 0.00E+00 3.06E+02 Ba-140 <5.40E+01 0.00E+00 5.40E+01 Total-Gam 0.00E+00 Sample ID: 405353 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.24E+01 0.00E+00 1.24E+01 Co-58 <1.35E+01 0.00E+00 1.35E+01 Fe-59 <2.69E+01 0.00E+00 2.69E+01 Co-60 <1.03E+01 0.00E+00 1.03E+01 Zn-65 <2.56E+01 0.00E+00 2.56E+01 Zr-95 <2.32E+01 0.00E+00 2.32E+01 Nb-95 <1.46E+01 0.00E+00 1.46E+01 I-131 <4.36E+01 0.00E+00 4.36E+01 Cs-134 <1.24E+01 0.00E+00 1.24E+01 Cs-137 <2.44E+01 0.00E+00 2.44E+01 La-140 <3.01E+03 0.00E+00 3.01E+03 Ba-140 <1.06E+02 0.00E+00 1.06E+02 Total-Gam 0.00E+00 Sample ID: 405970 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.87E+01 0.00E+00 1.87E+01 Co-58 <1.04E+01 0.00E+00 1.04E+01 Fe-59 <4.23E+01 0.00E+00 4.23E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <1.78E+01 0.00E+00 1.78E+01 Zr-95 <2.51E+01 0.00E+00 2.51E+01 Nb-95 <1.98E+01 0.00E+00 1.98E+01 I-131 <2.28E+01 0.00E+00 2.28E+01 Cs-134 <1.56E+01 0.00E+00 1.56E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <3.22E+02 0.00E+00 3.22E+02 Ba-140 <4.93E+01 0.00E+00 4.93E+01 Total-Gam 0.00E+00 Sample ID: 406301 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.85E+01 0.00E+00 1.85E+01 Co-58 <1.55E+01 0.00E+00 1.55E+01 Fe-59 <2.73E+01 0.00E+00 2.73E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <4.28E+01 0.00E+00 4.28E+01 Zr-95 <2.49E+01 0.00E+00 2.49E+01 Nb-95 <1.49E+01 0.00E+00 1.49E+01 I-131 <1.83E+01 0.00E+00 1.83E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 123 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 406301 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.34E+01 0.00E+00 1.34E+01 Cs-137 <2.03E+01 0.00E+00 2.03E+01 La-140 <4.71E+01 0.00E+00 4.71E+01 Ba-140 <5.88E+01 0.00E+00 5.88E+01 Total-Gam 0.00E+00 Sample ID: 407498 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.87E+00 0.00E+00 9.87E+00 Co-58 <1.54E+01 0.00E+00 1.54E+01 Fe-59 <1.57E+01 0.00E+00 1.57E+01 Co-60 <1.30E+01 0.00E+00 1.30E+01 Zn-65 <3.03E+01 0.00E+00 3.03E+01 Zr-95 <2.35E+01 0.00E+00 2.35E+01 Nb-95 <1.62E+01 0.00E+00 1.62E+01 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <1.11E+01 0.00E+00 1.11E+01 Cs-137 <2.14E+01 0.00E+00 2.14E+01 La-140 <3.21E+01 0.00E+00 3.21E+01 Ba-140 <5.77E+01 0.00E+00 5.77E+01 Total-Gam 0.00E+00 Sample ID: 408052 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.85E+01 0.00E+00 1.85E+01 Co-58 <1.19E+01 0.00E+00 1.19E+01 Fe-59 <2.20E+01 0.00E+00 2.20E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.49E+01 0.00E+00 3.49E+01 Zr-95 <2.33E+01 0.00E+00 2.33E+01 Nb-95 <1.31E+01 0.00E+00 1.31E+01 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <1.34E+01 0.00E+00 1.34E+01 Cs-137 <9.57E+00 0.00E+00 9.57E+00 La-140 <3.20E+01 0.00E+00 3.20E+01 Ba-140 <3.43E+01 0.00E+00 3.43E+01 Total-Gam 0.00E+00 Sample ID: 409391 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <6.91E+00 0.00E+00 6.91E+00 Fe-59 <3.51E+01 0.00E+00 3.51E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.50E+01 0.00E+00 3.50E+01 Zr-95 <2.48E+01 0.00E+00 2.48E+01 Nb-95 <2.10E+01 0.00E+00 2.10E+01 I-131 <1.51E+01 0.00E+00 1.51E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <9.57E+00 0.00E+00 9.57E+00 La-140 <4.16E+01 0.00E+00 4.16E+01 Ba-140 <4.09E+01 0.00E+00 4.09E+01 Total-Gam 0.00E+00 Sample ID: 409725 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <1.55E+01 0.00E+00 1.55E+01 Fe-59 <3.32E+01 0.00E+00 3.32E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <2.47E+01 0.00E+00 2.47E+01 Zr-95 <2.88E+01 0.00E+00 2.88E+01 Nb-95 <1.88E+01 0.00E+00 1.88E+01 I-131 <1.53E+01 0.00E+00 1.53E+01 Cs-134 <9.50E+00 0.00E+00 9.50E+00 Cs-137 <9.57E+00 0.00E+00 9.57E+00 La-140 <1.97E+01 0.00E+00 1.97E+01 Ba-140 <5.46E+01 0.00E+00 5.46E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 124 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 409725 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Total-Gam 0.00E+00 Sample ID: 410878 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <1.21E+01 0.00E+00 1.21E+01 Fe-59 <3.36E+01 0.00E+00 3.36E+01 Co-60 <9.22E+00 0.00E+00 9.22E+00 Zn-65 <3.04E+01 0.00E+00 3.04E+01 Zr-95 <2.05E+01 0.00E+00 2.05E+01 Nb-95 <1.51E+01 0.00E+00 1.51E+01 I-131 <1.87E+01 0.00E+00 1.87E+01 Cs-134 <1.73E+01 0.00E+00 1.73E+01 Cs-137 <1.91E+01 0.00E+00 1.91E+01 La-140 <6.12E+01 0.00E+00 6.12E+01 Ba-140 <7.47E+01 0.00E+00 7.47E+01 Total-Gam 0.00E+00 Sample ID: 411378 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.22E+01 0.00E+00 1.22E+01 Co-58 <7.27E+00 0.00E+00 7.27E+00 Fe-59 <2.54E+01 0.00E+00 2.54E+01 Co-60 <9.24E+00 0.00E+00 9.24E+00 Zn-65 <3.55E+01 0.00E+00 3.55E+01 Zr-95 <3.04E+01 0.00E+00 3.04E+01 Nb-95 <1.47E+01 0.00E+00 1.47E+01 I-131 <2.26E+01 0.00E+00 2.26E+01 Cs-134 <1.12E+01 0.00E+00 1.12E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <2.32E+02 0.00E+00 2.32E+02 Ba-140 <4.72E+01 0.00E+00 4.72E+01 Total-Gam 0.00E+00 Sample ID: 411702 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.22E+01 0.00E+00 1.22E+01 Co-58 <1.03E+01 0.00E+00 1.03E+01 Fe-59 <2.94E+01 0.00E+00 2.94E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <2.51E+01 0.00E+00 2.51E+01 Zr-95 <2.77E+01 0.00E+00 2.77E+01 Nb-95 <1.64E+01 0.00E+00 1.64E+01 I-131 <2.09E+01 0.00E+00 2.09E+01 Cs-134 <1.74E+01 0.00E+00 1.74E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <3.23E+02 0.00E+00 3.23E+02 Ba-140 <7.64E+01 0.00E+00 7.64E+01 Total-Gam 0.00E+00 Sample ID: 412164 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.58E+01 0.00E+00 1.58E+01 Co-58 <2.06E+01 0.00E+00 2.06E+01 Fe-59 <2.95E+01 0.00E+00 2.95E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.97E+01 0.00E+00 3.97E+01 Zr-95 <3.73E+01 0.00E+00 3.73E+01 Nb-95 <1.04E+01 0.00E+00 1.04E+01 I-131 <2.47E+01 0.00E+00 2.47E+01 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <2.71E+02 0.00E+00 2.71E+02 Ba-140 <7.66E+01 0.00E+00 7.66E+01 Total-Gam 0.00E+00 Sample ID: 412681 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.76E+01 0.00E+00 1.76E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 125 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 412681 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Co-58 <2.33E+01 0.00E+00 2.33E+01 Fe-59 <4.23E+01 0.00E+00 4.23E+01 Co-60 <9.26E+00 0.00E+00 9.26E+00 Zn-65 <1.81E+01 0.00E+00 1.81E+01 Zr-95 <3.78E+01 0.00E+00 3.78E+01 Nb-95 <2.52E+01 0.00E+00 2.52E+01 I-131 <5.38E+01 0.00E+00 5.38E+01 Cs-134 <1.11E+01 0.00E+00 1.11E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <6.75E+03 0.00E+00 6.75E+03 Ba-140 <1.11E+02 0.00E+00 1.11E+02 Total-Gam 0.00E+00 Sample ID: 413284 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.41E+01 0.00E+00 1.41E+01 Co-58 <1.45E+01 0.00E+00 1.45E+01 Fe-59 <2.54E+01 0.00E+00 2.54E+01 Co-60 <1.60E+01 0.00E+00 1.60E+01 Zn-65 <3.97E+01 0.00E+00 3.97E+01 Zr-95 <1.76E+01 0.00E+00 1.76E+01 Nb-95 <2.08E+01 0.00E+00 2.08E+01 I-131 <2.47E+01 0.00E+00 2.47E+01 Cs-134 <1.46E+01 0.00E+00 1.46E+01 Cs-137 <2.14E+01 0.00E+00 2.14E+01 La-140 <2.22E+02 0.00E+00 2.22E+02 Ba-140 <6.64E+01 0.00E+00 6.64E+01 Total-Gam 0.00E+00 Sample ID: 413831 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.00E+01 0.00E+00 1.00E+01 Co-58 <2.32E+01 0.00E+00 2.32E+01 Fe-59 <3.64E+01 0.00E+00 3.64E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <1.78E+01 0.00E+00 1.78E+01 Zr-95 <1.77E+01 0.00E+00 1.77E+01 Nb-95 <1.83E+01 0.00E+00 1.83E+01 I-131 <1.98E+01 0.00E+00 1.98E+01 Cs-134 <1.46E+01 0.00E+00 1.46E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <2.34E+02 0.00E+00 2.34E+02 Ba-140 <8.57E+01 0.00E+00 8.57E+01 Total-Gam 0.00E+00 Sample ID: 414971 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.98E+00 0.00E+00 9.98E+00 Co-58 <1.62E+01 0.00E+00 1.62E+01 Fe-59 <2.94E+01 0.00E+00 2.94E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <3.07E+01 0.00E+00 3.07E+01 Zr-95 <2.14E+01 0.00E+00 2.14E+01 Nb-95 <1.46E+01 0.00E+00 1.46E+01 I-131 <2.18E+01 0.00E+00 2.18E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <2.44E+02 0.00E+00 2.44E+02 Ba-140 <7.07E+01 0.00E+00 7.07E+01 Total-Gam 0.00E+00 Sample ID: 415336 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.58E+01 0.00E+00 1.58E+01 Co-58 <1.26E+01 0.00E+00 1.26E+01 Fe-59 <3.59E+01 0.00E+00 3.59E+01 Co-60 <1.77E+01 0.00E+00 1.77E+01 Zn-65 <2.51E+01 0.00E+00 2.51E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 126 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 415336 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <3.04E+01 0.00E+00 3.04E+01 Nb-95 <1.04E+01 0.00E+00 1.04E+01 I-131 <2.58E+01 0.00E+00 2.58E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <2.14E+01 0.00E+00 2.14E+01 La-140 <3.11E+02 0.00E+00 3.11E+02 Ba-140 <6.06E+01 0.00E+00 6.06E+01 Total-Gam 0.00E+00 Sample ID: 416336 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.21E+01 0.00E+00 2.21E+01 Co-58 <1.56E+01 0.00E+00 1.56E+01 Fe-59 <1.59E+01 0.00E+00 1.59E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <2.48E+01 0.00E+00 2.48E+01 Zr-95 <2.06E+01 0.00E+00 2.06E+01 Nb-95 <2.03E+01 0.00E+00 2.03E+01 I-131 <1.37E+01 0.00E+00 1.37E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <2.78E+01 0.00E+00 2.78E+01 Ba-140 <6.11E+01 0.00E+00 6.11E+01 Total-Gam 0.00E+00 Sample ID: 416960 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.56E+01 0.00E+00 1.56E+01 Co-58 <1.56E+01 0.00E+00 1.56E+01 Fe-59 <2.38E+01 0.00E+00 2.38E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <3.51E+01 0.00E+00 3.51E+01 Zr-95 <2.90E+01 0.00E+00 2.90E+01 Nb-95 <1.91E+01 0.00E+00 1.91E+01 I-131 <2.01E+01 0.00E+00 2.01E+01 Cs-134 <1.11E+01 0.00E+00 1.11E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <3.12E+01 0.00E+00 3.12E+01 Ba-140 <7.16E+01 0.00E+00 7.16E+01 Total-Gam 0.00E+00 Sample ID: 417353 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.88E+01 0.00E+00 1.88E+01 Co-58 <1.28E+01 0.00E+00 1.28E+01 Fe-59 <3.03E+01 0.00E+00 3.03E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <1.78E+01 0.00E+00 1.78E+01 Zr-95 <3.09E+01 0.00E+00 3.09E+01 Nb-95 <2.01E+01 0.00E+00 2.01E+01 I-131 <3.25E+01 0.00E+00 3.25E+01 Cs-134 <1.46E+01 0.00E+00 1.46E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <5.71E+02 0.00E+00 5.71E+02 Ba-140 <5.17E+01 0.00E+00 5.17E+01 Total-Gam 0.00E+00 Sample ID: 417714 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.59E+01 0.00E+00 1.59E+01 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <2.52E+01 0.00E+00 2.52E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.58E+01 0.00E+00 3.58E+01 Zr-95 <3.39E+01 0.00E+00 3.39E+01 Nb-95 <1.35E+01 0.00E+00 1.35E+01 I-131 <2.86E+01 0.00E+00 2.86E+01 Cs-134 <9.56E+00 0.00E+00 9.56E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 127 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 417714 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <7.24E+02 0.00E+00 7.24E+02 Ba-140 <1.00E+02 0.00E+00 1.00E+02 Total-Gam 0.00E+00 Sample ID: 418200 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.00E+01 0.00E+00 2.00E+01 Co-58 <1.03E+01 0.00E+00 1.03E+01 Fe-59 <3.32E+02 0.00E+00 3.32E+02 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <3.07E+01 0.00E+00 3.07E+01 Zr-95 <2.62E+01 0.00E+00 2.62E+01 Nb-95 <1.46E+01 0.00E+00 1.46E+01 I-131 <2.44E+01 0.00E+00 2.44E+01 Cs-134 <7.89E+00 0.00E+00 7.89E+00 Cs-137 <1.92E+01 0.00E+00 1.92E+01 La-140 <2.59E+02 0.00E+00 2.59E+02 Ba-140 <5.39E+01 0.00E+00 5.39E+01 Total-Gam 0.00E+00 Sample ID: 418928 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.96E+01 0.00E+00 1.96E+01 Co-58 <2.34E+01 0.00E+00 2.34E+01 Fe-59 <3.21E+01 0.00E+00 3.21E+01 Co-60 <1.35E+01 0.00E+00 1.35E+01 Zn-65 <2.62E+01 0.00E+00 2.62E+01 Zr-95 <3.27E+01 0.00E+00 3.27E+01 Nb-95 <1.99E+01 0.00E+00 1.99E+01 I-131 <2.86E+01 0.00E+00 2.86E+01 Cs-134 <1.41E+01 0.00E+00 1.41E+01 Cs-137 <1.87E+01 0.00E+00 1.87E+01 La-140 <5.84E+02 0.00E+00 5.84E+02 Ba-140 <8.85E+01 0.00E+00 8.85E+01 Total-Gam 0.00E+00 Sample ID: 424037 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.55E+01 0.00E+00 1.55E+01 Co-58 <9.50E+00 0.00E+00 9.50E+00 Fe-59 <3.58E+01 0.00E+00 3.58E+01 Co-60 <1.85E+01 0.00E+00 1.85E+01 Zn-65 <2.78E+01 0.00E+00 2.78E+01 Zr-95 <3.33E+01 0.00E+00 3.33E+01 Nb-95 <2.42E+01 0.00E+00 2.42E+01 I-131 <1.72E+02 0.00E+00 1.72E+02 Cs-134 <1.45E+01 0.00E+00 1.45E+01 Cs-137 <1.87E+01 0.00E+00 1.87E+01 La-140 <2.39E+06 0.00E+00 2.39E+06 Ba-140 <2.23E+02 0.00E+00 2.23E+02 Total-Gam 0.00E+00 Sample ID: 424333 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.87E+01 0.00E+00 1.87E+01 Co-58 <2.96E+01 0.00E+00 2.96E+01 Fe-59 <3.98E+01 0.00E+00 3.98E+01 Co-60 <1.93E+01 0.00E+00 1.93E+01 Zn-65 <2.73E+01 0.00E+00 2.73E+01 Zr-95 <4.92E+01 0.00E+00 4.92E+01 Nb-95 <3.86E+01 0.00E+00 3.86E+01 I-131 <1.06E+02 0.00E+00 1.06E+02 Cs-134 <8.34E+00 0.00E+00 8.34E+00 Cs-137 <2.45E+01 0.00E+00 2.45E+01 La-140 <2.57E+05 0.00E+00 2.57E+05 Ba-140 <1.23E+02 0.00E+00 1.23E+02 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 128 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 424358 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.07E+01 0.00E+00 1.07E+01 Co-58 <1.74E+01 0.00E+00 1.74E+01 Fe-59 <3.81E+01 0.00E+00 3.81E+01 Co-60 <1.67E+01 0.00E+00 1.67E+01 Zn-65 <4.69E+01 0.00E+00 4.69E+01 Zr-95 <3.02E+01 0.00E+00 3.02E+01 Nb-95 <2.48E+01 0.00E+00 2.48E+01 I-131 <9.09E+01 0.00E+00 9.09E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <1.73E+01 0.00E+00 1.73E+01 La-140 <7.92E+04 0.00E+00 7.92E+04 Ba-140 <1.93E+02 0.00E+00 1.93E+02 Total-Gam 0.00E+00 Sample ID: 427619 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.80E+00 0.00E+00 9.80E+00 Co-58 <2.56E+01 0.00E+00 2.56E+01 Fe-59 <4.87E+01 0.00E+00 4.87E+01 Co-60 <9.09E+00 0.00E+00 9.09E+00 Zn-65 <3.10E+01 0.00E+00 3.10E+01 Zr-95 <3.99E+01 0.00E+00 3.99E+01 Nb-95 <3.04E+01 0.00E+00 3.04E+01 I-131 <1.65E+03 0.00E+00 1.65E+03 Cs-134 <1.13E+01 0.00E+00 1.13E+01 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <3.24E+11 0.00E+00 3.24E+11 Ba-140 <1.05E+03 0.00E+00 1.05E+03 Total-Gam 0.00E+00 Sample ID: 423252 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.93E+01 0.00E+00 1.93E+01 Co-58 <1.70E+01 0.00E+00 1.70E+01 Fe-59 <2.95E+01 0.00E+00 2.95E+01 Co-60 <8.19E+00 0.00E+00 8.19E+00 Zn-65 <3.51E+01 0.00E+00 3.51E+01 Zr-95 <3.71E+01 0.00E+00 3.71E+01 Nb-95 <4.07E+01 0.00E+00 4.07E+01 I-131 <1.09E+03 0.00E+00 1.09E+03 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <1.89E+01 0.00E+00 1.89E+01 La-140 <2.43E+10 0.00E+00 2.43E+10 Ba-140 <6.87E+02 0.00E+00 6.87E+02 Total-Gam 0.00E+00 Sample ID: 424370 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <0.00E+00 0.00E+00 0.00E+00 Co-58 <1.29E+01 0.00E+00 1.29E+01 Fe-59 <3.73E+01 0.00E+00 3.73E+01 Co-60 <2.00E+01 0.00E+00 2.00E+01 Zn-65 <2.43E+01 0.00E+00 2.43E+01 Zr-95 <1.98E+01 0.00E+00 1.98E+01 Nb-95 <2.31E+01 0.00E+00 2.31E+01 I-131 <6.10E+02 0.00E+00 6.10E+02 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <1.03E+01 0.00E+00 1.03E+01 La-140 <8.22E+08 0.00E+00 8.22E+08 Ba-140 <2.49E+02 0.00E+00 2.49E+02 Total-Gam 0.00E+00 Sample ID: 425369 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.76E+01 0.00E+00 1.76E+01 Co-58 <1.93E+01 0.00E+00 1.93E+01 Fe-59 <3.59E+01 0.00E+00 3.59E+01 Co-60 <1.81E+01 0.00E+00 1.81E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 129 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 425369 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Zn-65 <0.00E+00 0.00E+00 0.00E+00 Zr-95 <3.73E+01 0.00E+00 3.73E+01 Nb-95 <3.77E+01 0.00E+00 3.77E+01 I-131 <3.73E+02 0.00E+00 3.73E+02 Cs-134 <8.62E+00 0.00E+00 8.62E+00 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <7.76E+07 0.00E+00 7.76E+07 Ba-140 <3.65E+02 0.00E+00 3.65E+02 Total-Gam 0.00E+00 Sample ID: 425931 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.48E+01 0.00E+00 1.48E+01 Co-58 <1.71E+01 0.00E+00 1.71E+01 Fe-59 <5.28E+01 0.00E+00 5.28E+01 Co-60 <9.02E+00 0.00E+00 9.02E+00 Zn-65 <3.37E+01 0.00E+00 3.37E+01 Zr-95 <2.61E+01 0.00E+00 2.61E+01 Nb-95 <2.01E+01 0.00E+00 2.01E+01 I-131 <3.20E+02 0.00E+00 3.20E+02 Cs-134 <1.01E+01 0.00E+00 1.01E+01 Cs-137 <1.88E+01 0.00E+00 1.88E+01 La-140 <6.97E+07 0.00E+00 6.97E+07 Ba-140 <2.68E+02 0.00E+00 2.68E+02 Total-Gam 0.00E+00 Sample ID: 426304 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.19E+00 0.00E+00 9.19E+00 Co-58 <2.09E+01 0.00E+00 2.09E+01 Fe-59 <4.41E+01 0.00E+00 4.41E+01 Co-60 <1.27E+01 0.00E+00 1.27E+01 Zn-65 <1.65E+01 0.00E+00 1.65E+01 Zr-95 <2.77E+01 0.00E+00 2.77E+01 Nb-95 <1.99E+01 0.00E+00 1.99E+01 I-131 <1.64E+02 0.00E+00 1.64E+02 Cs-134 <1.56E+01 0.00E+00 1.56E+01 Cs-137 <1.58E+01 0.00E+00 1.58E+01 La-140 <2.45E+06 0.00E+00 2.45E+06 Ba-140 <2.08E+02 0.00E+00 2.08E+02 Total-Gam 0.00E+00 Sample ID: 426993 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.82E+01 0.00E+00 1.82E+01 Co-58 <1.84E+01 0.00E+00 1.84E+01 Fe-59 <3.35E+01 0.00E+00 3.35E+01 Co-60 <1.27E+01 0.00E+00 1.27E+01 Zn-65 <3.64E+01 0.00E+00 3.64E+01 Zr-95 <1.85E+01 0.00E+00 1.85E+01 Nb-95 <2.21E+01 0.00E+00 2.21E+01 I-131 <1.14E+02 0.00E+00 1.14E+02 Cs-134 <9.93E+00 0.00E+00 9.93E+00 Cs-137 <1.03E+01 0.00E+00 1.03E+01 La-140 <2.71E+05 0.00E+00 2.71E+05 Ba-140 <1.34E+02 0.00E+00 1.34E+02 Total-Gam 0.00E+00 Sample ID: 427650 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.27E+01 0.00E+00 1.27E+01 Co-58 <1.45E+01 0.00E+00 1.45E+01 Fe-59 <3.15E+01 0.00E+00 3.15E+01 Co-60 <8.97E+00 0.00E+00 8.97E+00 Zn-65 <0.00E+00 0.00E+00 0.00E+00 Zr-95 <3.76E+01 0.00E+00 3.76E+01 Nb-95 <1.86E+01 0.00E+00 1.86E+01 I-131 <5.99E+01 0.00E+00 5.99E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 130 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 427650 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <8.48E+00 0.00E+00 8.48E+00 Cs-137 <5.95E+00 0.00E+00 5.95E+00 La-140 <7.02E+04 0.00E+00 7.02E+04 Ba-140 <1.59E+02 0.00E+00 1.59E+02 Total-Gam 0.00E+00 Sample ID: 428149 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.67E+00 0.00E+00 8.67E+00 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <2.41E+01 0.00E+00 2.41E+01 Co-60 <1.54E+01 0.00E+00 1.54E+01 Zn-65 <2.65E+01 0.00E+00 2.65E+01 Zr-95 <2.08E+01 0.00E+00 2.08E+01 Nb-95 <1.03E+01 0.00E+00 1.03E+01 I-131 <1.44E+01 0.00E+00 1.44E+01 Cs-134 <1.54E+01 0.00E+00 1.54E+01 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <3.42E+01 0.00E+00 3.42E+01 Ba-140 <5.69E+01 0.00E+00 5.69E+01 Total-Gam 0.00E+00 Sample ID: 428824 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.37E+01 0.00E+00 1.37E+01 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <2.93E+01 0.00E+00 2.93E+01 Co-60 <1.54E+01 0.00E+00 1.54E+01 Zn-65 <2.65E+01 0.00E+00 2.65E+01 Zr-95 <1.47E+01 0.00E+00 1.47E+01 Nb-95 <1.78E+01 0.00E+00 1.78E+01 I-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <1.45E+01 0.00E+00 1.45E+01 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <3.33E+01 0.00E+00 3.33E+01 Ba-140 <5.67E+01 0.00E+00 5.67E+01 Total-Gam 0.00E+00 Sample ID: 429342 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.47E+01 0.00E+00 1.47E+01 Fe-59 <1.36E+01 0.00E+00 1.36E+01 Co-60 <8.05E+00 0.00E+00 8.05E+00 Zn-65 <4.31E+01 0.00E+00 4.31E+01 Zr-95 <1.77E+01 0.00E+00 1.77E+01 Nb-95 <9.92E+00 0.00E+00 9.92E+00 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <9.62E+00 0.00E+00 9.62E+00 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <3.03E+01 0.00E+00 3.03E+01 Ba-140 <4.23E+01 0.00E+00 4.23E+01 Total-Gam 0.00E+00 Sample ID: 429893 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <5.39E+00 0.00E+00 5.39E+00 Co-58 <6.93E+00 0.00E+00 6.93E+00 Fe-59 <1.10E+01 0.00E+00 1.10E+01 Co-60 <6.57E+00 0.00E+00 6.57E+00 Zn-65 <1.34E+01 0.00E+00 1.34E+01 Zr-95 <1.18E+01 0.00E+00 1.18E+01 Nb-95 <6.86E+00 0.00E+00 6.86E+00 I-131 <7.64E+00 0.00E+00 7.64E+00 Cs-134 <7.35E+00 0.00E+00 7.35E+00 Cs-137 <6.57E+00 0.00E+00 6.57E+00 La-140 <9.80E+00 0.00E+00 9.80E+00 Ba-140 <2.49E+01 0.00E+00 2.49E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 131 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 429893 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA Total-Gam 0.00E+00 Sample ID: 430513 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.62E+01 0.00E+00 1.62E+01 Co-58 <1.05E+01 0.00E+00 1.05E+01 Fe-59 <2.90E+01 0.00E+00 2.90E+01 Co-60 <8.91E+00 0.00E+00 8.91E+00 Zn-65 <3.42E+01 0.00E+00 3.42E+01 Zr-95 <2.73E+01 0.00E+00 2.73E+01 Nb-95 <1.84E+01 0.00E+00 1.84E+01 I-131 <1.28E+01 0.00E+00 1.28E+01 Cs-134 <1.18E+01 0.00E+00 1.18E+01 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <1.73E+01 0.00E+00 1.73E+01 Ba-140 <4.45E+01 0.00E+00 4.45E+01 Total-Gam 0.00E+00 Sample ID: 431001 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.62E+01 0.00E+00 1.62E+01 Co-58 <1.59E+01 0.00E+00 1.59E+01 Fe-59 <2.71E+01 0.00E+00 2.71E+01 Co-60 <8.05E+00 0.00E+00 8.05E+00 Zn-65 <1.52E+01 0.00E+00 1.52E+01 Zr-95 <2.16E+01 0.00E+00 2.16E+01 Nb-95 <1.51E+01 0.00E+00 1.51E+01 I-131 <1.60E+01 0.00E+00 1.60E+01 Cs-134 <1.38E+01 0.00E+00 1.38E+01 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <1.92E+01 0.00E+00 1.92E+01 Ba-140 <4.85E+01 0.00E+00 4.85E+01 Total-Gam 0.00E+00 Sample ID: 431409 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.06E+01 0.00E+00 1.06E+01 Co-58 <8.50E+00 0.00E+00 8.50E+00 Fe-59 <1.92E+01 0.00E+00 1.92E+01 Co-60 <1.78E+01 0.00E+00 1.78E+01 Zn-65 <1.52E+01 0.00E+00 1.52E+01 Zr-95 <2.28E+01 0.00E+00 2.28E+01 Nb-95 <9.92E+00 0.00E+00 9.92E+00 I-131 <1.62E+01 0.00E+00 1.62E+01 Cs-134 <9.73E+00 0.00E+00 9.73E+00 Cs-137 <5.94E+00 0.00E+00 5.94E+00 La-140 <1.66E+01 0.00E+00 1.66E+01 Ba-140 <4.88E+01 0.00E+00 4.88E+01 Total-Gam 0.00E+00 Sample ID: 431740 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.06E+01 0.00E+00 1.06E+01 Co-58 <1.21E+01 0.00E+00 1.21E+01 Fe-59 <1.37E+01 0.00E+00 1.37E+01 Co-60 <8.91E+00 0.00E+00 8.91E+00 Zn-65 <3.74E+01 0.00E+00 3.74E+01 Zr-95 <1.46E+01 0.00E+00 1.46E+01 Nb-95 <1.54E+01 0.00E+00 1.54E+01 I-131 <1.02E+01 0.00E+00 1.02E+01 Cs-134 <1.19E+01 0.00E+00 1.19E+01 Cs-137 <1.57E+01 0.00E+00 1.57E+01 La-140 <3.06E+01 0.00E+00 3.06E+01 Ba-140 <5.06E+01 0.00E+00 5.06E+01 Total-Gam 0.00E+00 Sample ID: 432141 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.37E+01 0.00E+00 1.37E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 132 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1065 Sample Point 1065 [ INDICATOR - @ 0 miles ]

Sample ID: 432141 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Co-58 <1.59E+01 0.00E+00 1.59E+01 Fe-59 <3.03E+01 0.00E+00 3.03E+01 Co-60 <1.54E+01 0.00E+00 1.54E+01 Zn-65 <4.03E+01 0.00E+00 4.03E+01 Zr-95 <2.49E+01 0.00E+00 2.49E+01 Nb-95 <1.72E+01 0.00E+00 1.72E+01 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <1.27E+01 0.00E+00 1.27E+01 Cs-137 <8.40E+00 0.00E+00 8.40E+00 La-140 <1.63E+01 0.00E+00 1.63E+01 Ba-140 <4.56E+01 0.00E+00 4.56E+01 Total-Gam 0.00E+00 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 400098 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.41E+01 0.00E+00 1.41E+01 Co-58 <1.26E+01 0.00E+00 1.26E+01 Fe-59 <3.58E+01 0.00E+00 3.58E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <1.77E+01 0.00E+00 1.77E+01 Zr-95 <3.92E+01 0.00E+00 3.92E+01 Nb-95 <1.64E+01 0.00E+00 1.64E+01 I-131 <2.21E+01 0.00E+00 2.21E+01 Cs-134 <7.79E+00 0.00E+00 7.79E+00 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <1.50E+02 0.00E+00 1.50E+02 Ba-140 <5.39E+01 0.00E+00 5.39E+01 Total-Gam 0.00E+00 Sample ID: 399952 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.23E+01 0.00E+00 1.23E+01 Co-58 <1.27E+01 0.00E+00 1.27E+01 Fe-59 <3.56E+02 0.00E+00 3.56E+02 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.08E+01 0.00E+00 3.08E+01 Zr-95 <4.33E+01 0.00E+00 4.33E+01 Nb-95 <1.29E+01 0.00E+00 1.29E+01 I-131 <2.41E+01 0.00E+00 2.41E+01 Cs-134 <1.37E+01 0.00E+00 1.37E+01 Cs-137 <1.17E+01 0.00E+00 1.17E+01 La-140 <3.92E+02 0.00E+00 3.92E+02 Ba-140 <8.04E+01 0.00E+00 8.04E+01 Total-Gam 0.00E+00 Sample ID: 400274 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <1.69E+01 0.00E+00 1.69E+01 Fe-59 <2.22E+01 0.00E+00 2.22E+01 Co-60 <1.30E+01 0.00E+00 1.30E+01 Zn-65 <3.03E+01 0.00E+00 3.03E+01 Zr-95 <2.35E+01 0.00E+00 2.35E+01 Nb-95 <1.33E+01 0.00E+00 1.33E+01 I-131 <1.51E+01 0.00E+00 1.51E+01 Cs-134 <1.34E+01 0.00E+00 1.34E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <3.91E+01 0.00E+00 3.91E+01 Ba-140 <5.02E+01 0.00E+00 5.02E+01 Total-Gam 0.00E+00 Sample ID: 400925 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.99E+00 0.00E+00 9.99E+00 Co-58 <1.26E+01 0.00E+00 1.26E+01 Fe-59 <2.41E+01 0.00E+00 2.41E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 133 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 400925 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <3.55E+01 0.00E+00 3.55E+01 Zr-95 <1.24E+01 0.00E+00 1.24E+01 Nb-95 <1.47E+01 0.00E+00 1.47E+01 I-131 <2.35E+01 0.00E+00 2.35E+01 Cs-134 <1.56E+01 0.00E+00 1.56E+01 Cs-137 <1.17E+01 0.00E+00 1.17E+01 La-140 <1.55E+02 0.00E+00 1.55E+02 Ba-140 <9.76E+01 0.00E+00 9.76E+01 Total-Gam 0.00E+00 Sample ID: 401288 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.00E+01 0.00E+00 1.00E+01 Co-58 <1.28E+01 0.00E+00 1.28E+01 Fe-59 <1.75E+01 0.00E+00 1.75E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <5.04E+01 0.00E+00 5.04E+01 Zr-95 <2.53E+01 0.00E+00 2.53E+01 Nb-95 <1.52E+01 0.00E+00 1.52E+01 I-131 <2.90E+01 0.00E+00 2.90E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <3.84E+02 0.00E+00 3.84E+02 Ba-140 <9.00E+01 0.00E+00 9.00E+01 Total-Gam 0.00E+00 Sample ID: 401751 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.59E+01 0.00E+00 1.59E+01 Co-58 <1.30E+01 0.00E+00 1.30E+01 Fe-59 <5.32E+01 0.00E+00 5.32E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <1.79E+01 0.00E+00 1.79E+01 Zr-95 <2.87E+01 0.00E+00 2.87E+01 Nb-95 <1.56E+01 0.00E+00 1.56E+01 I-131 <3.35E+01 0.00E+00 3.35E+01 Cs-134 <1.35E+01 0.00E+00 1.35E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <5.53E+02 0.00E+00 5.53E+02 Ba-140 <1.11E+02 0.00E+00 1.11E+02 Total-Gam 0.00E+00 Sample ID: 402262 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.25E+01 0.00E+00 1.25E+01 Co-58 <1.37E+01 0.00E+00 1.37E+01 Fe-59 <4.77E+01 0.00E+00 4.77E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <4.06E+01 0.00E+00 4.06E+01 Zr-95 <2.73E+01 0.00E+00 2.73E+01 Nb-95 <1.51E+01 0.00E+00 1.51E+01 I-131 <6.08E+01 0.00E+00 6.08E+01 Cs-134 <1.24E+01 0.00E+00 1.24E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <1.10E+04 0.00E+00 1.10E+04 Ba-140 <1.15E+02 0.00E+00 1.15E+02 Total-Gam 0.00E+00 Sample ID: 402984 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.13E+01 0.00E+00 2.13E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <2.52E+01 0.00E+00 2.52E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <4.00E+01 0.00E+00 4.00E+01 Zr-95 <3.14E+01 0.00E+00 3.14E+01 Nb-95 <1.10E+01 0.00E+00 1.10E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 134 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 402984 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA I-131 <2.74E+01 0.00E+00 2.74E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <2.25E+01 0.00E+00 2.25E+01 La-140 <7.78E+02 0.00E+00 7.78E+02 Ba-140 <6.39E+01 0.00E+00 6.39E+01 Total-Gam 0.00E+00 Sample ID: 404468 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.42E+01 0.00E+00 1.42E+01 Co-58 <1.27E+01 0.00E+00 1.27E+01 Fe-59 <3.85E+01 0.00E+00 3.85E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.98E+01 0.00E+00 3.97E+01 Zr-95 <2.16E+01 0.00E+00 2.16E+01 Nb-95 <2.11E+01 0.00E+00 2.11E+01 I-131 <2.39E+01 0.00E+00 2.39E+01 Cs-134 <1.37E+01 0.00E+00 1.37E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <3.50E+02 0.00E+00 3.50E+02 Ba-140 <6.33E+01 0.00E+00 6.33E+01 Total-Gam 0.00E+00 Sample ID: 405354 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.24E+01 0.00E+00 1.24E+01 Co-58 <1.11E+01 0.00E+00 1.11E+01 Fe-59 <4.05E+01 0.00E+00 4.05E+01 Co-60 <1.78E+01 0.00E+00 1.78E+01 Zn-65 <3.14E+01 0.00E+00 3.14E+01 Zr-95 <3.02E+01 0.00E+00 3.02E+01 Nb-95 <1.71E+01 0.00E+00 1.71E+01 I-131 <2.93E+01 0.00E+00 2.93E+01 Cs-134 <1.57E+01 0.00E+00 1.57E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <6.99E+03 0.00E+00 6.99E+03 Ba-140 <1.10E+02 0.00E+00 1.10E+02 Total-Gam 0.00E+00 Sample ID: 405971 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.58E+01 0.00E+00 1.58E+01 Co-58 <1.04E+01 0.00E+00 1.04E+01 Fe-59 <3.86E+01 0.00E+00 3.86E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.56E+01 0.00E+00 3.56E+01 Zr-95 <1.25E+01 0.00E+00 1.25E+01 Nb-95 <2.24E+01 0.00E+00 2.24E+01 I-131 <2.78E+01 0.00E+00 2.78E+01 Cs-134 <1.56E+01 0.00E+00 1.56E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <2.24E+02 0.00E+00 2.24E+02 Ba-140 <8.03E+01 0.00E+00 8.03E+01 Total-Gam 0.00E+00 Sample ID: 406302 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.78E+01 0.00E+00 1.78E+01 Fe-59 <2.40E+01 0.00E+00 2.40E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <3.55E+01 0.00E+00 3.55E+01 Zr-95 <2.15E+01 0.00E+00 2.15E+01 Nb-95 <2.54E+01 0.00E+00 2.54E+01 I-131 <2.65E+01 0.00E+00 2.65E+01 Cs-134 <1.46E+01 0.00E+00 1.46E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <3.32E+02 0.00E+00 3.32E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 135 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 406302 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Ba-140 <6.59E+01 0.00E+00 6.59E+01 Total-Gam 0.00E+00 Sample ID: 407499 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <6.90E+00 0.00E+00 6.90E+00 Fe-59 <1.57E+01 0.00E+00 1.57E+01 Co-60 <1.84E+01 0.00E+00 1.84E+01 Zn-65 <4.28E+01 0.00E+00 4.28E+01 Zr-95 <2.03E+01 0.00E+00 2.03E+01 Nb-95 <1.48E+01 0.00E+00 1.48E+01 I-131 <1.84E+01 0.00E+00 1.84E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <1.80E+01 0.00E+00 1.80E+01 Ba-140 <5.40E+01 0.00E+00 5.40E+01 Total-Gam 0.00E+00 Sample ID: 408053 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <1.69E+01 0.00E+00 1.69E+01 Fe-59 <1.57E+01 0.00E+00 1.57E+01 Co-60 <9.22E+00 0.00E+00 9.22E+00 Zn-65 <3.03E+01 0.00E+00 3.03E+01 Zr-95 <3.52E+01 0.00E+00 3.52E+01 Nb-95 <2.10E+01 0.00E+00 2.10E+01 I-131 <1.67E+01 0.00E+00 1.67E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <4.13E+01 0.00E+00 4.13E+01 Ba-140 <5.46E+01 0.00E+00 5.46E+01 Total-Gam 0.00E+00 Sample ID: 409392 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.85E+01 0.00E+00 1.85E+01 Co-58 <2.07E+01 0.00E+00 2.07E+01 Fe-59 <2.22E+01 0.00E+00 2.22E+01 Co-60 <1.60E+01 0.00E+00 1.60E+01 Zn-65 <3.50E+01 0.00E+00 3.50E+01 Zr-95 <2.35E+01 0.00E+00 2.35E+01 Nb-95 <1.75E+01 0.00E+00 1.75E+01 I-131 <1.58E+01 0.00E+00 1.58E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.91E+01 0.00E+00 1.91E+01 La-140 <2.63E+01 0.00E+00 2.63E+01 Ba-140 <4.58E+01 0.00E+00 4.58E+01 Total-Gam 0.00E+00 Sample ID: 409726 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <1.55E+01 0.00E+00 1.55E+01 Fe-59 <2.73E+01 0.00E+00 2.73E+01 Co-60 <1.30E+01 0.00E+00 1.30E+01 Zn-65 <2.47E+01 0.00E+00 2.47E+01 Zr-95 <2.03E+01 0.00E+00 2.03E+01 Nb-95 <1.99E+01 0.00E+00 1.99E+01 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <1.11E+01 0.00E+00 1.11E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <1.98E+01 0.00E+00 1.98E+01 Ba-140 <4.62E+01 0.00E+00 4.62E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 136 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 410879 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.21E+01 0.00E+00 1.21E+01 Co-58 <1.97E+01 0.00E+00 1.97E+01 Fe-59 <2.77E+01 0.00E+00 2.77E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <2.48E+01 0.00E+00 2.48E+01 Zr-95 <2.06E+01 0.00E+00 2.06E+01 Nb-95 <2.53E+01 0.00E+00 2.53E+01 I-131 <1.57E+01 0.00E+00 1.57E+01 Cs-134 <1.55E+01 0.00E+00 1.55E+01 Cs-137 <2.14E+01 0.00E+00 2.14E+01 La-140 <4.04E+01 0.00E+00 4.04E+01 Ba-140 <4.86E+01 0.00E+00 4.86E+01 Total-Gam 0.00E+00 Sample ID: 411379 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.99E+00 0.00E+00 9.99E+00 Co-58 <1.78E+01 0.00E+00 1.78E+01 Fe-59 <3.41E+01 0.00E+00 3.41E+01 Co-60 <9.24E+00 0.00E+00 9.24E+00 Zn-65 <3.07E+01 0.00E+00 3.07E+01 Zr-95 <3.05E+01 0.00E+00 3.05E+01 Nb-95 <2.21E+01 0.00E+00 2.21E+01 I-131 <2.82E+01 0.00E+00 2.82E+01 Cs-134 <1.12E+01 0.00E+00 1.12E+01 Cs-137 <6.77E+00 0.00E+00 6.77E+00 La-140 <1.66E+02 0.00E+00 1.66E+02 Ba-140 <7.22E+01 0.00E+00 7.22E+01 Total-Gam 0.00E+00 Sample ID: 411703 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.41E+01 0.00E+00 1.41E+01 Co-58 <1.92E+01 0.00E+00 1.92E+01 Fe-59 <3.40E+01 0.00E+00 3.40E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <1.77E+01 0.00E+00 1.77E+01 Zr-95 <2.62E+01 0.00E+00 2.62E+01 Nb-95 <2.20E+01 0.00E+00 2.20E+01 I-131 <2.10E+01 0.00E+00 2.10E+01 Cs-134 <9.54E+00 0.00E+00 9.54E+00 Cs-137 <1.92E+01 0.00E+00 1.92E+01 La-140 <1.53E+02 0.00E+00 1.53E+02 Ba-140 <9.36E+01 0.00E+00 9.36E+01 Total-Gam 0.00E+00 Sample ID: 412165 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.42E+01 0.00E+00 1.42E+01 Co-58 <1.64E+01 0.00E+00 1.64E+01 Fe-59 <1.73E+01 0.00E+00 1.73E+01 Co-60 <1.77E+01 0.00E+00 1.77E+01 Zn-65 <4.36E+01 0.00E+00 4.36E+01 Zr-95 <3.06E+01 0.00E+00 3.07E+01 Nb-95 <1.98E+01 0.00E+00 1.98E+01 I-131 <2.93E+01 0.00E+00 2.93E+01 Cs-134 <1.77E+01 0.00E+00 1.77E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <3.39E+02 0.00E+00 3.39E+02 Ba-140 <8.59E+01 0.00E+00 8.59E+01 Total-Gam 0.00E+00 Sample ID: 412682 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.03E+01 0.00E+00 2.03E+01 Co-58 <1.35E+01 0.00E+00 1.35E+01 Fe-59 <1.89E+01 0.00E+00 1.89E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 137 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 412682 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Zn-65 <2.56E+01 0.00E+00 2.56E+01 Zr-95 <2.68E+01 0.00E+00 2.68E+01 Nb-95 <1.88E+01 0.00E+00 1.88E+01 I-131 <2.69E+01 0.00E+00 2.69E+01 Cs-134 <9.60E+00 0.00E+00 9.60E+00 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <2.69E+03 0.00E+00 2.69E+03 Ba-140 <9.63E+01 0.00E+00 9.63E+01 Total-Gam 0.00E+00 Sample ID: 413285 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.58E+01 0.00E+00 1.58E+01 Co-58 <1.92E+01 0.00E+00 1.92E+01 Fe-59 <2.54E+01 0.00E+00 2.54E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <1.77E+01 0.00E+00 1.77E+01 Zr-95 <2.15E+01 0.00E+00 2.15E+01 Nb-95 <1.65E+01 0.00E+00 1.65E+01 I-131 <1.68E+01 0.00E+00 1.68E+01 Cs-134 <1.46E+01 0.00E+00 1.46E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <2.95E+02 0.00E+00 2.95E+02 Ba-140 <6.68E+01 0.00E+00 6.68E+01 Total-Gam 0.00E+00 Sample ID: 413832 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.23E+01 0.00E+00 1.23E+01 Co-58 <1.79E+01 0.00E+00 1.79E+01 Fe-59 <3.85E+01 0.00E+00 3.85E+01 Co-60 <2.05E+01 0.00E+00 2.05E+01 Zn-65 <3.98E+01 0.00E+00 3.98E+01 Zr-95 <2.17E+01 0.00E+00 2.17E+01 Nb-95 <1.67E+01 0.00E+00 1.67E+01 I-131 <2.53E+01 0.00E+00 2.53E+01 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <3.80E+02 0.00E+00 3.80E+02 Ba-140 <5.67E+01 0.00E+00 5.67E+01 Total-Gam 0.00E+00 Sample ID: 414972 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.22E+01 0.00E+00 1.22E+01 Co-58 <1.45E+01 0.00E+00 1.45E+01 Fe-59 <1.70E+01 0.00E+00 1.70E+01 Co-60 <1.60E+01 0.00E+00 1.60E+01 Zn-65 <2.51E+01 0.00E+00 2.51E+01 Zr-95 <2.14E+01 0.00E+00 2.14E+01 Nb-95 <1.46E+01 0.00E+00 1.46E+01 I-131 <2.42E+01 0.00E+00 2.42E+01 Cs-134 <1.35E+01 0.00E+00 1.35E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <3.41E+02 0.00E+00 3.41E+02 Ba-140 <6.55E+01 0.00E+00 6.55E+01 Total-Gam 0.00E+00 Sample ID: 415337 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.23E+01 0.00E+00 1.23E+01 Co-58 <1.04E+01 0.00E+00 1.04E+01 Fe-59 <2.44E+01 0.00E+00 2.44E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <5.34E+01 0.00E+00 5.34E+01 Zr-95 <2.51E+01 0.00E+00 2.51E+01 Nb-95 <2.25E+01 0.00E+00 2.25E+01 I-131 <2.56E+01 0.00E+00 2.56E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 138 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 415337 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.35E+01 0.00E+00 1.35E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <2.36E+02 0.00E+00 2.36E+02 Ba-140 <7.01E+01 0.00E+00 7.01E+01 Total-Gam 0.00E+00 Sample ID: 416337 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <1.97E+01 0.00E+00 1.97E+01 Fe-59 <3.36E+01 0.00E+00 3.36E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <2.48E+01 0.00E+00 2.48E+01 Zr-95 <2.51E+01 0.00E+00 2.51E+01 Nb-95 <1.66E+01 0.00E+00 1.66E+01 I-131 <2.01E+01 0.00E+00 2.01E+01 Cs-134 <1.76E+01 0.00E+00 1.76E+01 Cs-137 <2.03E+01 0.00E+00 2.03E+01 La-140 <4.83E+01 0.00E+00 4.83E+01 Ba-140 <3.74E+01 0.00E+00 3.74E+01 Total-Gam 0.00E+00 Sample ID: 416961 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <1.21E+01 0.00E+00 1.21E+01 Fe-59 <2.26E+01 0.00E+00 2.26E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.04E+01 0.00E+00 3.04E+01 Zr-95 <2.06E+01 0.00E+00 2.06E+01 Nb-95 <1.51E+01 0.00E+00 1.51E+01 I-131 <2.09E+01 0.00E+00 2.09E+01 Cs-134 <1.55E+01 0.00E+00 1.55E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <4.01E+01 0.00E+00 4.01E+01 Ba-140 <5.31E+01 0.00E+00 5.31E+01 Total-Gam 0.00E+00 Sample ID: 417354 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.43E+01 0.00E+00 1.43E+01 Co-58 <1.34E+01 0.00E+00 1.34E+01 Fe-59 <3.27E+01 0.00E+00 3.27E+01 Co-60 <1.85E+01 0.00E+00 1.85E+01 Zn-65 <3.13E+01 0.00E+00 3.13E+01 Zr-95 <2.31E+01 0.00E+00 2.31E+01 Nb-95 <8.36E+00 0.00E+00 8.36E+00 I-131 <3.95E+01 0.00E+00 3.95E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <3.33E+03 0.00E+00 3.33E+03 Ba-140 <6.71E+01 0.00E+00 6.71E+01 Total-Gam 0.00E+00 Sample ID: 417715 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.42E+01 0.00E+00 1.42E+01 Co-58 <1.98E+01 0.00E+00 1.98E+01 Fe-59 <3.08E+01 0.00E+00 3.08E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <3.10E+01 0.00E+00 3.10E+01 Zr-95 <2.56E+01 0.00E+00 2.56E+01 Nb-95 <1.55E+01 0.00E+00 1.55E+01 I-131 <2.53E+01 0.00E+00 2.53E+01 Cs-134 <1.35E+01 0.00E+00 1.35E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <5.89E+02 0.00E+00 5.89E+02 Ba-140 <8.97E+01 0.00E+00 8.97E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 139 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 417715 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Total-Gam 0.00E+00 Sample ID: 418201 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.04E+01 0.00E+00 1.04E+01 Co-58 <1.89E+01 0.00E+00 1.89E+01 Fe-59 <4.06E+01 0.00E+00 4.06E+01 Co-60 <1.66E+01 0.00E+00 1.66E+01 Zn-65 <3.70E+01 0.00E+00 3.70E+01 Zr-95 <2.95E+01 0.00E+00 2.95E+01 Nb-95 <2.10E+01 0.00E+00 2.10E+01 I-131 <2.04E+01 0.00E+00 2.04E+01 Cs-134 <2.23E+01 0.00E+00 2.23E+01 Cs-137 <7.07E+00 0.00E+00 7.07E+00 La-140 <5.02E+02 0.00E+00 5.02E+02 Ba-140 <9.40E+01 0.00E+00 9.40E+01 Total-Gam 0.00E+00 Sample ID: 418929 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.83E+01 0.00E+00 1.83E+01 Co-58 <1.62E+01 0.00E+00 1.62E+01 Fe-59 <2.77E+01 0.00E+00 2.77E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <2.65E+01 0.00E+00 2.65E+01 Zr-95 <3.94E+01 0.00E+00 3.94E+01 Nb-95 <2.63E+01 0.00E+00 2.63E+01 I-131 <4.41E+01 0.00E+00 4.41E+01 Cs-134 <8.18E+00 0.00E+00 8.18E+00 Cs-137 <1.41E+01 0.00E+00 1.41E+01 La-140 <4.42E+03 0.00E+00 4.42E+03 Ba-140 <7.10E+01 0.00E+00 7.10E+01 Total-Gam 0.00E+00 Sample ID: 424038 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.92E+01 0.00E+00 1.92E+01 Fe-59 <3.63E+01 0.00E+00 3.63E+01 Co-60 <1.07E+01 0.00E+00 1.07E+01 Zn-65 <3.41E+01 0.00E+00 3.41E+01 Zr-95 <2.90E+01 0.00E+00 2.90E+01 Nb-95 <4.27E+01 0.00E+00 4.27E+01 I-131 <2.32E+02 0.00E+00 2.32E+02 Cs-134 <1.31E+01 0.00E+00 1.31E+01 Cs-137 <1.23E+01 0.00E+00 1.23E+01 La-140 <4.96E+06 0.00E+00 4.96E+06 Ba-140 <3.77E+02 0.00E+00 3.77E+02 Total-Gam 0.00E+00 Sample ID: 424334 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.54E+01 0.00E+00 1.54E+01 Co-58 <1.61E+01 0.00E+00 1.61E+01 Fe-59 <4.88E+01 0.00E+00 4.88E+01 Co-60 <1.36E+01 0.00E+00 1.36E+01 Zn-65 <4.36E+01 0.00E+00 4.36E+01 Zr-95 <1.98E+01 0.00E+00 1.98E+01 Nb-95 <2.58E+01 0.00E+00 2.58E+01 I-131 <1.32E+02 0.00E+00 1.32E+02 Cs-134 <1.17E+01 0.00E+00 1.17E+01 Cs-137 <2.24E+01 0.00E+00 2.24E+01 La-140 <9.06E+05 0.00E+00 9.06E+05 Ba-140 <1.96E+02 0.00E+00 1.96E+02 Total-Gam 0.00E+00 Sample ID: 424359 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.70E+01 0.00E+00 1.70E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 140 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 424359 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Co-58 <1.23E+01 0.00E+00 1.23E+01 Fe-59 <3.11E+01 0.00E+00 3.11E+01 Co-60 <1.84E+01 0.00E+00 1.84E+01 Zn-65 <1.91E+01 0.00E+00 1.91E+01 Zr-95 <3.37E+01 0.00E+00 3.37E+01 Nb-95 <2.86E+01 0.00E+00 2.86E+01 I-131 <6.96E+01 0.00E+00 6.96E+01 Cs-134 <1.54E+01 0.00E+00 1.54E+01 Cs-137 <1.22E+01 0.00E+00 1.22E+01 La-140 <9.89E+04 0.00E+00 9.89E+04 Ba-140 <1.83E+02 0.00E+00 1.83E+02 Total-Gam 0.00E+00 Sample ID: 427620 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.39E+01 0.00E+00 1.39E+01 Co-58 <1.81E+01 0.00E+00 1.81E+01 Fe-59 <3.27E+01 0.00E+00 3.27E+01 Co-60 <1.29E+01 0.00E+00 1.29E+01 Zn-65 <3.58E+01 0.00E+00 3.58E+01 Zr-95 <4.62E+01 0.00E+00 4.62E+01 Nb-95 <5.27E+01 0.00E+00 5.27E+01 I-131 <1.73E+03 0.00E+00 1.73E+03 Cs-134 <7.24E+00 0.00E+00 7.25E+00 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <1.80E+11 0.00E+00 1.80E+11 Ba-140 <6.46E+02 0.00E+00 6.46E+02 Total-Gam 0.00E+00 Sample ID: 423253 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.81E+01 0.00E+00 1.81E+01 Co-58 <2.40E+01 0.00E+00 2.40E+01 Fe-59 <6.59E+01 0.00E+00 6.59E+01 Co-60 <1.28E+01 0.00E+00 1.28E+01 Zn-65 <1.76E+01 0.00E+00 1.76E+01 Zr-95 <3.04E+01 0.00E+00 3.04E+01 Nb-95 <2.67E+01 0.00E+00 2.67E+01 I-131 <5.86E+02 0.00E+00 5.86E+02 Cs-134 <1.02E+01 0.00E+00 1.02E+01 Cs-137 <1.58E+01 0.00E+00 1.58E+01 La-140 <1.62E+10 0.00E+00 1.62E+10 Ba-140 <5.81E+02 0.00E+00 5.81E+02 Total-Gam 0.00E+00 Sample ID: 424371 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.34E+01 0.00E+00 1.34E+01 Co-58 <1.58E+01 0.00E+00 1.58E+01 Fe-59 <5.28E+01 0.00E+00 5.28E+01 Co-60 <1.16E+01 0.00E+00 1.16E+01 Zn-65 <2.43E+01 0.00E+00 2.43E+01 Zr-95 <2.80E+01 0.00E+00 2.80E+01 Nb-95 <3.78E+01 0.00E+00 3.78E+01 I-131 <5.90E+02 0.00E+00 5.90E+02 Cs-134 <1.32E+01 0.00E+00 1.32E+01 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <1.17E+09 0.00E+00 1.17E+09 Ba-140 <4.31E+02 0.00E+00 4.31E+02 Total-Gam 0.00E+00 Sample ID: 425370 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.62E+01 0.00E+00 1.62E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <5.90E+01 0.00E+00 5.90E+01 Co-60 <1.63E+01 0.00E+00 1.63E+01 Zn-65 <2.39E+01 0.00E+00 2.39E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 141 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 425370 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <3.05E+01 0.00E+00 3.05E+01 Nb-95 <1.68E+01 0.00E+00 1.68E+01 I-131 <3.43E+02 0.00E+00 3.43E+02 Cs-134 <1.01E+01 0.00E+00 1.01E+01 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <9.36E+07 0.00E+00 9.36E+07 Ba-140 <2.22E+02 0.00E+00 2.22E+02 Total-Gam 0.00E+00 Sample ID: 425932 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.75E+01 0.00E+00 1.75E+01 Co-58 <1.21E+01 0.00E+00 1.21E+01 Fe-59 <3.35E+01 0.00E+00 3.35E+01 Co-60 <8.15E+00 0.00E+00 8.15E+00 Zn-65 <1.69E+01 0.00E+00 1.69E+01 Zr-95 <2.61E+01 0.00E+00 2.61E+01 Nb-95 <3.08E+01 0.00E+00 3.08E+01 I-131 <2.86E+02 0.00E+00 2.86E+02 Cs-134 <1.57E+01 0.00E+00 1.57E+01 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <5.61E+07 0.00E+00 5.61E+07 Ba-140 <3.62E+02 0.00E+00 3.62E+02 Total-Gam 0.00E+00 Sample ID: 426305 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.59E+01 0.00E+00 1.59E+01 Co-58 <1.78E+01 0.00E+00 1.78E+01 Fe-59 <2.99E+01 0.00E+00 2.99E+01 Co-60 <1.82E+01 0.00E+00 1.82E+01 Zn-65 <2.86E+01 0.00E+00 2.86E+01 Zr-95 <1.39E+01 0.00E+00 1.39E+01 Nb-95 <2.02E+01 0.00E+00 2.02E+01 I-131 <1.61E+02 0.00E+00 1.61E+02 Cs-134 <1.40E+01 0.00E+00 1.40E+01 Cs-137 <1.03E+01 0.00E+00 1.03E+01 La-140 <3.37E+06 0.00E+00 3.37E+06 Ba-140 <2.31E+02 0.00E+00 2.31E+02 Total-Gam 0.00E+00 Sample ID: 426994 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.57E+01 0.00E+00 1.57E+01 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <3.88E+01 0.00E+00 3.88E+01 Co-60 <1.27E+01 0.00E+00 1.27E+01 Zn-65 <2.82E+01 0.00E+00 2.82E+01 Zr-95 <1.85E+01 0.00E+00 1.85E+01 Nb-95 <2.21E+01 0.00E+00 2.21E+01 I-131 <8.06E+01 0.00E+00 8.06E+01 Cs-134 <9.83E+00 0.00E+00 9.83E+00 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <2.26E+05 0.00E+00 2.26E+05 Ba-140 <1.70E+02 0.00E+00 1.70E+02 Total-Gam 0.00E+00 Sample ID: 427651 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.10E+01 0.00E+00 1.10E+01 Co-58 <2.17E+01 0.00E+00 2.17E+01 Fe-59 <5.41E+01 0.00E+00 5.41E+01 Co-60 <1.15E+01 0.00E+00 1.15E+01 Zn-65 <3.94E+01 0.00E+00 3.94E+01 Zr-95 <2.16E+01 0.00E+00 2.16E+01 Nb-95 <2.20E+01 0.00E+00 2.20E+01 I-131 <6.00E+01 0.00E+00 6.00E+01 Cs-134 <1.20E+01 0.00E+00 1.20E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 142 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 427651 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.57E+01 0.00E+00 1.57E+01 La-140 <4.13E+04 0.00E+00 4.13E+04 Ba-140 <1.18E+02 0.00E+00 1.18E+02 Total-Gam 0.00E+00 Sample ID: 428150 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.37E+01 0.00E+00 1.37E+01 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <1.97E+01 0.00E+00 1.97E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <1.53E+01 0.00E+00 1.53E+01 Zr-95 <2.75E+01 0.00E+00 2.75E+01 Nb-95 <8.39E+00 0.00E+00 8.39E+00 I-131 <1.77E+01 0.00E+00 1.77E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <4.82E+01 0.00E+00 4.82E+01 Ba-140 <5.70E+01 0.00E+00 5.70E+01 Total-Gam 0.00E+00 Sample ID: 428825 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.62E+01 0.00E+00 1.62E+01 Co-58 <1.22E+01 0.00E+00 1.22E+01 Fe-59 <1.39E+01 0.00E+00 1.39E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <3.06E+01 0.00E+00 3.06E+01 Zr-95 <1.04E+01 0.00E+00 1.04E+01 Nb-95 <1.57E+01 0.00E+00 1.57E+01 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.03E+01 0.00E+00 1.03E+01 La-140 <3.35E+01 0.00E+00 3.35E+01 Ba-140 <6.28E+01 0.00E+00 6.28E+01 Total-Gam 0.00E+00 Sample ID: 429343 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.64E+00 0.00E+00 8.64E+00 Co-58 <1.34E+01 0.00E+00 1.34E+01 Fe-59 <3.03E+01 0.00E+00 3.03E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <2.64E+01 0.00E+00 2.64E+01 Zr-95 <2.29E+01 0.00E+00 2.29E+01 Nb-95 <1.15E+01 0.00E+00 1.15E+01 I-131 <1.47E+01 0.00E+00 1.47E+01 Cs-134 <8.33E+00 0.00E+00 8.33E+00 Cs-137 <1.68E+01 0.00E+00 1.68E+01 La-140 <1.20E+01 0.00E+00 1.20E+01 Ba-140 <5.47E+01 0.00E+00 5.47E+01 Total-Gam 0.00E+00 Sample ID: 429894 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.64E+01 0.00E+00 1.64E+01 Co-58 <1.44E+01 0.00E+00 1.44E+01 Fe-59 <3.01E+01 0.00E+00 3.01E+01 Co-60 <8.07E+00 0.00E+00 8.07E+00 Zn-65 <2.20E+01 0.00E+00 2.20E+01 Zr-95 <1.90E+01 0.00E+00 1.90E+01 Nb-95 <1.46E+01 0.00E+00 1.46E+01 I-131 <2.53E+01 0.00E+00 2.53E+01 Cs-134 <1.28E+01 0.00E+00 1.28E+01 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <2.73E+02 0.00E+00 2.73E+02 Ba-140 <7.88E+01 0.00E+00 7.88E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 143 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 430514 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.94E+01 0.00E+00 1.94E+01 Co-58 <1.37E+01 0.00E+00 1.37E+01 Fe-59 <3.41E+01 0.00E+00 3.41E+01 Co-60 <1.78E+01 0.00E+00 1.78E+01 Zn-65 <4.33E+01 0.00E+00 4.33E+01 Zr-95 <1.47E+01 0.00E+00 1.47E+01 Nb-95 <1.68E+01 0.00E+00 1.68E+01 I-131 <7.89E+00 0.00E+00 7.89E+00 Cs-134 <1.18E+01 0.00E+00 1.18E+01 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <3.42E+01 0.00E+00 3.42E+01 Ba-140 <4.24E+01 0.00E+00 4.24E+01 Total-Gam 0.00E+00 Sample ID: 431002 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <8.64E+00 0.00E+00 8.64E+00 Co-58 <1.34E+01 0.00E+00 1.34E+01 Fe-59 <1.91E+01 0.00E+00 1.91E+01 Co-60 <1.39E+01 0.00E+00 1.39E+01 Zn-65 <3.73E+01 0.00E+00 3.73E+01 Zr-95 <2.70E+01 0.00E+00 2.70E+01 Nb-95 <1.14E+01 0.00E+00 1.14E+01 I-131 <1.40E+01 0.00E+00 1.40E+01 Cs-134 <1.18E+01 0.00E+00 1.18E+01 Cs-137 <1.78E+01 0.00E+00 1.78E+01 La-140 <2.23E+01 0.00E+00 2.23E+01 Ba-140 <4.20E+01 0.00E+00 4.20E+01 Total-Gam 0.00E+00 Sample ID: 431410 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.83E+01 0.00E+00 1.83E+01 Co-58 <1.20E+01 0.00E+00 1.20E+01 Fe-59 <2.02E+01 0.00E+00 2.02E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <2.64E+01 0.00E+00 2.64E+01 Zr-95 <1.44E+01 0.00E+00 1.44E+01 Nb-95 <1.15E+01 0.00E+00 1.15E+01 I-131 <1.67E+01 0.00E+00 1.67E+01 Cs-134 <1.27E+01 0.00E+00 1.27E+01 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <1.67E+01 0.00E+00 1.67E+01 Ba-140 <4.23E+01 0.00E+00 4.23E+01 Total-Gam 0.00E+00 Sample ID: 431741 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.06E+01 0.00E+00 1.06E+01 Co-58 <1.05E+01 0.00E+00 1.05E+01 Fe-59 <2.04E+01 0.00E+00 2.04E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <2.64E+01 0.00E+00 2.64E+01 Zr-95 <2.18E+01 0.00E+00 2.18E+01 Nb-95 <1.84E+01 0.00E+00 1.84E+01 I-131 <1.33E+01 0.00E+00 1.33E+01 Cs-134 <1.27E+01 0.00E+00 1.27E+01 Cs-137 <1.57E+01 0.00E+00 1.57E+01 La-140 <2.30E+01 0.00E+00 2.30E+01 Ba-140 <4.41E+01 0.00E+00 4.41E+01 Total-Gam 0.00E+00 Sample ID: 432142 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.04E+01 0.00E+00 1.04E+01 Fe-59 <1.36E+01 0.00E+00 1.36E+01 Co-60 <1.61E+01 0.00E+00 1.61E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 144 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1066 Sample Point 1066 [ INDICATOR - @ 0 miles ]

Sample ID: 432142 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Zn-65 <3.73E+01 0.00E+00 3.73E+01 Zr-95 <2.89E+01 0.00E+00 2.89E+01 Nb-95 <1.28E+01 0.00E+00 1.28E+01 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <1.19E+01 0.00E+00 1.19E+01 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <1.64E+01 0.00E+00 1.64E+01 Ba-140 <3.45E+01 0.00E+00 3.45E+01 Total-Gam 0.00E+00 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 400099 Sample Dates: 1/6/2016 - 1/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.99E+00 0.00E+00 9.99E+00 Co-58 <1.45E+01 0.00E+00 1.45E+01 Fe-59 <2.95E+01 0.00E+00 2.95E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <3.07E+01 0.00E+00 3.07E+01 Zr-95 <2.15E+01 0.00E+00 2.15E+01 Nb-95 <2.08E+01 0.00E+00 2.08E+01 I-131 <2.57E+01 0.00E+00 2.57E+01 Cs-134 <1.76E+01 0.00E+00 1.76E+01 Cs-137 <1.17E+01 0.00E+00 1.17E+01 La-140 <2.19E+02 0.00E+00 2.19E+02 Ba-140 <9.37E+01 0.00E+00 9.37E+01 Total-Gam 0.00E+00 Sample ID: 399953 Sample Dates: 1/12/2016 - 1/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.58E+01 0.00E+00 1.58E+01 Co-58 <1.47E+01 0.00E+00 1.47E+01 Fe-59 <1.73E+01 0.00E+00 1.73E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <2.51E+01 0.00E+00 2.52E+01 Zr-95 <2.65E+01 0.00E+00 2.65E+01 Nb-95 <1.30E+01 0.00E+00 1.30E+01 I-131 <2.68E+01 0.00E+00 2.68E+01 Cs-134 <1.37E+01 0.00E+00 1.37E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <4.55E+02 0.00E+00 4.55E+02 Ba-140 <8.56E+01 0.00E+00 8.56E+01 Total-Gam 0.00E+00 Sample ID: 400275 Sample Dates: 1/19/2016 - 1/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.00E+00 0.00E+00 7.00E+00 Co-58 <1.21E+01 0.00E+00 1.21E+01 Fe-59 <2.75E+01 0.00E+00 2.75E+01 Co-60 <1.30E+01 0.00E+00 1.30E+01 Zn-65 <3.50E+01 0.00E+00 3.50E+01 Zr-95 <2.37E+01 0.00E+00 2.37E+01 Nb-95 <1.35E+01 0.00E+00 1.35E+01 I-131 <1.77E+01 0.00E+00 1.77E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <6.50E+01 0.00E+00 6.50E+01 Ba-140 <4.28E+01 0.00E+00 4.28E+01 Total-Gam 0.00E+00 Sample ID: 400926 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.22E+01 0.00E+00 1.22E+01 Co-58 <1.78E+01 0.00E+00 1.78E+01 Fe-59 <2.41E+01 0.00E+00 2.41E+01 Co-60 <9.24E+00 0.00E+00 9.24E+00 Zn-65 <2.51E+01 0.00E+00 2.51E+01 Zr-95 <2.48E+01 0.00E+00 2.49E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 145 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 400926 Sample Dates: 1/26/2016 - 1/26/2016 Nuclide Activity 2 Sigma Error MDA Nb-95 <1.64E+01 0.00E+00 1.64E+01 I-131 <2.70E+01 0.00E+00 2.70E+01 Cs-134 <1.12E+01 0.00E+00 1.12E+01 Cs-137 <0.00E+00 0.00E+00 0.00E+00 La-140 <1.60E+02 0.00E+00 1.60E+02 Ba-140 <6.66E+01 0.00E+00 6.66E+01 Total-Gam 0.00E+00 Sample ID: 401289 Sample Dates: 2/2/2016 - 2/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.01E+01 0.00E+00 2.01E+01 Co-58 <1.49E+01 0.00E+00 1.49E+01 Fe-59 <3.08E+01 0.00E+00 3.08E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <4.38E+01 0.00E+00 4.38E+01 Zr-95 <2.22E+01 0.00E+00 2.22E+01 Nb-95 <2.33E+01 0.00E+00 2.33E+01 I-131 <2.85E+01 0.00E+00 2.85E+01 Cs-134 <1.12E+01 0.00E+00 1.12E+01 Cs-137 <1.92E+01 0.00E+00 1.92E+01 La-140 <5.01E+02 0.00E+00 5.01E+02 Ba-140 <7.73E+01 0.00E+00 7.73E+01 Total-Gam 0.00E+00 Sample ID: 401752 Sample Dates: 2/9/2016 - 2/9/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.59E+01 0.00E+00 1.59E+01 Co-58 <1.30E+01 0.00E+00 1.30E+01 Fe-59 <2.53E+01 0.00E+00 2.53E+01 Co-60 <1.60E+01 0.00E+00 1.60E+01 Zn-65 <3.10E+01 0.00E+00 3.10E+01 Zr-95 <1.28E+01 0.00E+00 1.28E+01 Nb-95 <1.56E+01 0.00E+00 1.56E+01 I-131 <3.51E+01 0.00E+00 3.51E+01 Cs-134 <1.12E+01 0.00E+00 1.12E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <5.67E+02 0.00E+00 5.67E+02 Ba-140 <7.86E+01 0.00E+00 7.86E+01 Total-Gam 0.00E+00 Sample ID: 402263 Sample Dates: 2/16/2016 - 2/16/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.76E+01 0.00E+00 1.76E+01 Co-58 <2.38E+01 0.00E+00 2.38E+01 Fe-59 <3.38E+01 0.00E+00 3.38E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <3.64E+01 0.00E+00 3.64E+01 Zr-95 <2.37E+01 0.00E+00 2.37E+01 Nb-95 <1.96E+01 0.00E+00 1.96E+01 I-131 <5.55E+01 0.00E+00 5.55E+01 Cs-134 <1.47E+01 0.00E+00 1.47E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <8.76E+03 0.00E+00 8.76E+03 Ba-140 <9.81E+01 0.00E+00 9.81E+01 Total-Gam 0.00E+00 Sample ID: 402985 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.74E+01 0.00E+00 1.74E+01 Co-58 <1.06E+01 0.00E+00 1.06E+01 Fe-59 <2.53E+01 0.00E+00 2.53E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <2.53E+01 0.00E+00 2.53E+01 Zr-95 <3.15E+01 0.00E+00 3.15E+01 Nb-95 <2.34E+01 0.00E+00 2.34E+01 I-131 <2.75E+01 0.00E+00 2.75E+01 Cs-134 <1.35E+01 0.00E+00 1.35E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 146 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 402985 Sample Dates: 2/23/2016 - 2/23/2016 Nuclide Activity 2 Sigma Error MDA La-140 <1.11E+03 0.00E+00 1.11E+03 Ba-140 <7.85E+01 0.00E+00 7.85E+01 Total-Gam 0.00E+00 Sample ID: 404469 Sample Dates: 3/1/2016 - 3/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.24E+01 0.00E+00 2.24E+01 Co-58 <1.94E+01 0.00E+00 1.94E+01 Fe-59 <2.98E+01 0.00E+00 2.98E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <2.51E+01 0.00E+00 2.51E+01 Zr-95 <1.77E+01 0.00E+00 1.77E+01 Nb-95 <2.11E+01 0.00E+00 2.11E+01 I-131 <2.10E+01 0.00E+00 2.10E+01 Cs-134 <1.35E+01 0.00E+00 1.35E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <3.71E+02 0.00E+00 3.71E+02 Ba-140 <5.65E+01 0.00E+00 5.65E+01 Total-Gam 0.00E+00 Sample ID: 405355 Sample Dates: 3/8/2016 - 3/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.03E+01 0.00E+00 2.03E+01 Co-58 <1.36E+01 0.00E+00 1.36E+01 Fe-59 <2.87E+01 0.00E+00 2.87E+01 Co-60 <9.26E+00 0.00E+00 9.27E+00 Zn-65 <3.14E+01 0.00E+00 3.14E+01 Zr-95 <2.86E+01 0.00E+00 2.86E+01 Nb-95 <2.10E+01 0.00E+00 2.10E+01 I-131 <4.66E+01 0.00E+00 4.66E+01 Cs-134 <9.61E+00 0.00E+00 9.61E+00 Cs-137 <1.52E+01 0.00E+00 1.51E+01 La-140 <5.88E+03 0.00E+00 5.88E+03 Ba-140 <9.31E+01 0.00E+00 9.31E+01 Total-Gam 0.00E+00 Sample ID: 405972 Sample Dates: 3/15/2016 - 3/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.59E+01 0.00E+00 1.59E+01 Co-58 <1.65E+01 0.00E+00 1.65E+01 Fe-59 <1.75E+01 0.00E+00 1.75E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <2.52E+01 0.00E+00 2.52E+01 Zr-95 <3.10E+01 0.00E+00 3.10E+01 Nb-95 <2.15E+01 0.00E+00 2.15E+01 I-131 <2.58E+01 0.00E+00 2.58E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <4.45E+02 0.00E+00 4.45E+02 Ba-140 <8.91E+01 0.00E+00 8.91E+01 Total-Gam 0.00E+00 Sample ID: 406303 Sample Dates: 3/22/2016 - 3/22/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.58E+01 0.00E+00 1.58E+01 Co-58 <1.45E+01 0.00E+00 1.45E+01 Fe-59 <3.40E+01 0.00E+00 3.40E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <2.51E+01 0.00E+00 2.51E+01 Zr-95 <2.62E+01 0.00E+00 2.62E+01 Nb-95 <1.47E+01 0.00E+00 1.47E+01 I-131 <2.67E+01 0.00E+00 2.67E+01 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <1.51E+01 0.00E+00 1.51E+01 La-140 <2.63E+02 0.00E+00 2.63E+02 Ba-140 <6.04E+01 0.00E+00 6.04E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 147 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 407500 Sample Dates: 3/29/2016 - 3/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <9.77E+00 0.00E+00 9.77E+00 Fe-59 <3.51E+01 0.00E+00 3.51E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <2.47E+01 0.00E+00 2.47E+01 Zr-95 <2.03E+01 0.00E+00 2.03E+01 Nb-95 <1.88E+01 0.00E+00 1.88E+01 I-131 <1.58E+01 0.00E+00 1.58E+01 Cs-134 <9.49E+00 0.00E+00 9.49E+00 Cs-137 <1.17E+01 0.00E+00 1.17E+01 La-140 <1.86E+01 0.00E+00 1.86E+01 Ba-140 <6.48E+01 0.00E+00 6.48E+01 Total-Gam 0.00E+00 Sample ID: 408054 Sample Dates: 4/5/2016 - 4/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.21E+01 0.00E+00 1.21E+01 Co-58 <9.79E+00 0.00E+00 9.79E+00 Fe-59 <2.73E+01 0.00E+00 2.73E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.03E+01 0.00E+00 3.03E+01 Zr-95 <1.18E+01 0.00E+00 1.18E+01 Nb-95 <1.63E+01 0.00E+00 1.63E+01 I-131 <1.82E+01 0.00E+00 1.82E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <9.57E+00 0.00E+00 9.57E+00 La-140 <4.02E+01 0.00E+00 4.02E+01 Ba-140 <6.87E+01 0.00E+00 6.87E+01 Total-Gam 0.00E+00 Sample ID: 409393 Sample Dates: 4/12/2016 - 4/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.88E+00 0.00E+00 9.88E+00 Co-58 <1.95E+01 0.00E+00 1.95E+01 Fe-59 <3.14E+01 0.00E+00 3.14E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <3.91E+01 0.00E+00 3.91E+01 Zr-95 <2.63E+01 0.00E+00 2.63E+01 Nb-95 <1.75E+01 0.00E+00 1.75E+01 I-131 <1.59E+01 0.00E+00 1.59E+01 Cs-134 <1.34E+01 0.00E+00 1.34E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <6.37E+01 0.00E+00 6.37E+01 Ba-140 <5.03E+01 0.00E+00 5.03E+01 Total-Gam 0.00E+00 Sample ID: 409727 Sample Dates: 4/19/2016 - 4/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <1.55E+01 0.00E+00 1.55E+01 Fe-59 <3.16E+01 0.00E+00 3.16E+01 Co-60 <1.30E+01 0.00E+00 1.30E+01 Zn-65 <3.03E+01 0.00E+00 3.03E+01 Zr-95 <1.18E+01 0.00E+00 1.18E+01 Nb-95 <2.00E+01 0.00E+00 2.00E+01 I-131 <1.63E+01 0.00E+00 1.63E+01 Cs-134 <1.34E+01 0.00E+00 1.34E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <4.24E+01 0.00E+00 4.24E+01 Ba-140 <5.11E+01 0.00E+00 5.11E+01 Total-Gam 0.00E+00 Sample ID: 410880 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.21E+01 0.00E+00 1.21E+01 Co-58 <1.56E+01 0.00E+00 1.56E+01 Fe-59 <2.77E+01 0.00E+00 2.77E+01 Co-60 <9.22E+00 0.00E+00 9.23E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 148 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 410880 Sample Dates: 4/26/2016 - 4/26/2016 Nuclide Activity 2 Sigma Error MDA Zn-65 <2.48E+01 0.00E+00 2.48E+01 Zr-95 <2.90E+01 0.00E+00 2.90E+01 Nb-95 <2.25E+01 0.00E+00 2.25E+01 I-131 <1.49E+01 0.00E+00 1.49E+01 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <1.91E+01 0.00E+00 1.91E+01 La-140 <2.98E+01 0.00E+00 2.98E+01 Ba-140 <3.78E+01 0.00E+00 3.78E+01 Total-Gam 0.00E+00 Sample ID: 411380 Sample Dates: 5/3/2016 - 5/3/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.22E+01 0.00E+00 1.22E+01 Co-58 <1.78E+01 0.00E+00 1.78E+01 Fe-59 <2.41E+01 0.00E+00 2.41E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <3.97E+01 0.00E+00 3.97E+01 Zr-95 <3.05E+01 0.00E+00 3.05E+01 Nb-95 <2.08E+01 0.00E+00 2.08E+01 I-131 <2.83E+01 0.00E+00 2.83E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <3.84E+02 0.00E+00 3.84E+02 Ba-140 <6.12E+01 0.00E+00 6.12E+01 Total-Gam 0.00E+00 Sample ID: 411704 Sample Dates: 5/10/2016 - 5/10/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.03E+01 0.00E+00 1.03E+01 Fe-59 <3.40E+01 0.00E+00 3.40E+01 Co-60 <2.05E+01 0.00E+00 2.05E+01 Zn-65 <3.07E+01 0.00E+00 3.07E+01 Zr-95 <2.15E+01 0.00E+00 2.15E+01 Nb-95 <1.94E+01 0.00E+00 1.94E+01 I-131 <3.07E+01 0.00E+00 3.07E+01 Cs-134 <1.56E+01 0.00E+00 1.56E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <1.56E+02 0.00E+00 1.56E+02 Ba-140 <6.06E+01 0.00E+00 6.06E+01 Total-Gam 0.00E+00 Sample ID: 412166 Sample Dates: 5/17/2016 - 5/17/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.00E+01 0.00E+00 1.00E+01 Co-58 <1.64E+01 0.00E+00 1.64E+01 Fe-59 <1.73E+01 0.00E+00 1.73E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <5.03E+01 0.00E+00 5.03E+01 Zr-95 <2.52E+01 0.00E+00 2.52E+01 Nb-95 <7.52E+00 0.00E+00 7.52E+00 I-131 <2.86E+01 0.00E+00 2.86E+01 Cs-134 <1.77E+01 0.00E+00 1.77E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <5.18E+02 0.00E+00 5.18E+02 Ba-140 <7.66E+01 0.00E+00 7.66E+01 Total-Gam 0.00E+00 Sample ID: 412683 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.43E+01 0.00E+00 1.43E+01 Co-58 <1.56E+01 0.00E+00 1.56E+01 Fe-59 <2.68E+01 0.00E+00 2.68E+01 Co-60 <1.31E+01 0.00E+00 1.31E+01 Zn-65 <3.13E+01 0.00E+00 3.13E+01 Zr-95 <2.68E+01 0.00E+00 2.68E+01 Nb-95 <2.06E+01 0.00E+00 2.06E+01 I-131 <5.42E+01 0.00E+00 5.42E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 149 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 412683 Sample Dates: 5/24/2016 - 5/24/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.66E+01 0.00E+00 1.66E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 La-140 <4.80E+03 0.00E+00 4.80E+03 Ba-140 <1.63E+02 0.00E+00 1.63E+02 Total-Gam 0.00E+00 Sample ID: 413286 Sample Dates: 6/1/2016 - 6/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.99E+00 0.00E+00 1.00E+01 Co-58 <1.93E+01 0.00E+00 1.93E+01 Fe-59 <3.42E+01 0.00E+00 3.42E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <1.77E+01 0.00E+00 1.77E+01 Zr-95 <2.16E+01 0.00E+00 2.16E+01 Nb-95 <1.81E+01 0.00E+00 1.81E+01 I-131 <3.04E+01 0.00E+00 3.04E+01 Cs-134 <1.58E+01 0.00E+00 1.58E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <2.46E+02 0.00E+00 2.46E+02 Ba-140 <6.14E+01 0.00E+00 6.14E+01 Total-Gam 0.00E+00 Sample ID: 413833 Sample Dates: 6/7/2016 - 6/7/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.64E+01 0.00E+00 1.64E+01 Fe-59 <3.45E+01 0.00E+00 3.45E+01 Co-60 <1.60E+01 0.00E+00 1.60E+01 Zn-65 <3.56E+01 0.00E+00 3.56E+01 Zr-95 <1.53E+01 0.00E+00 1.53E+01 Nb-95 <1.67E+01 0.00E+00 1.67E+01 I-131 <3.42E+01 0.00E+00 3.42E+01 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <3.25E+02 0.00E+00 3.25E+02 Ba-140 <7.54E+01 0.00E+00 7.54E+01 Total-Gam 0.00E+00 Sample ID: 414973 Sample Dates: 6/14/2016 - 6/14/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.06E+00 0.00E+00 7.06E+00 Co-58 <1.26E+01 0.00E+00 1.26E+01 Fe-59 <3.39E+01 0.00E+00 3.39E+01 Co-60 <9.24E+00 0.00E+00 9.24E+00 Zn-65 <0.00E+00 0.00E+00 0.00E+00 Zr-95 <2.15E+01 0.00E+00 2.15E+01 Nb-95 <2.07E+01 0.00E+00 2.07E+01 I-131 <2.43E+01 0.00E+00 2.43E+01 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <2.60E+02 0.00E+00 2.60E+02 Ba-140 <7.10E+01 0.00E+00 7.10E+01 Total-Gam 0.00E+00 Sample ID: 415338 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.87E+01 0.00E+00 1.87E+01 Co-58 <1.92E+01 0.00E+00 1.92E+01 Fe-59 <3.81E+01 0.00E+00 3.81E+01 Co-60 <9.24E+00 0.00E+00 9.24E+00 Zn-65 <2.51E+01 0.00E+00 2.51E+01 Zr-95 <2.49E+01 0.00E+00 2.49E+01 Nb-95 <1.64E+01 0.00E+00 1.64E+01 I-131 <2.80E+01 0.00E+00 2.80E+01 Cs-134 <1.35E+01 0.00E+00 1.35E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <2.79E+02 0.00E+00 2.79E+02 Ba-140 <6.66E+01 0.00E+00 6.66E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 150 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 415338 Sample Dates: 6/21/2016 - 6/21/2016 Nuclide Activity 2 Sigma Error MDA Total-Gam 0.00E+00 Sample ID: 416338 Sample Dates: 6/28/2016 - 6/28/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <1.85E+01 0.00E+00 1.85E+01 Fe-59 <3.19E+01 0.00E+00 3.19E+01 Co-60 <2.06E+01 0.00E+00 2.06E+01 Zn-65 <2.48E+01 0.00E+00 2.48E+01 Zr-95 <2.06E+01 0.00E+00 2.06E+01 Nb-95 <1.91E+01 0.00E+00 1.91E+01 I-131 <1.57E+01 0.00E+00 1.57E+01 Cs-134 <1.55E+01 0.00E+00 1.55E+01 Cs-137 <2.25E+01 0.00E+00 2.25E+01 La-140 <2.88E+01 0.00E+00 2.88E+01 Ba-140 <5.74E+01 0.00E+00 5.74E+01 Total-Gam 0.00E+00 Sample ID: 416962 Sample Dates: 7/5/2016 - 7/5/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <1.85E+01 0.00E+00 1.85E+01 Fe-59 <3.19E+01 0.00E+00 3.19E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <1.75E+01 0.00E+00 1.75E+01 Zr-95 <1.19E+01 0.00E+00 1.19E+01 Nb-95 <1.51E+01 0.00E+00 1.51E+01 I-131 <1.89E+01 0.00E+00 1.89E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <1.35E+01 0.00E+00 1.35E+01 La-140 <2.90E+01 0.00E+00 2.90E+01 Ba-140 <5.32E+01 0.00E+00 5.32E+01 Total-Gam 0.00E+00 Sample ID: 417355 Sample Dates: 7/12/2016 - 7/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.24E+01 0.00E+00 1.24E+01 Co-58 <1.10E+01 0.00E+00 1.10E+01 Fe-59 <3.27E+01 0.00E+00 3.27E+01 Co-60 <1.45E+01 0.00E+00 1.45E+01 Zn-65 <3.13E+01 0.00E+00 3.13E+01 Zr-95 <2.98E+01 0.00E+00 2.98E+01 Nb-95 <1.87E+01 0.00E+00 1.87E+01 I-131 <2.96E+01 0.00E+00 2.96E+01 Cs-134 <1.37E+01 0.00E+00 1.37E+01 Cs-137 <9.58E+00 0.00E+00 9.58E+00 La-140 <3.49E+03 0.00E+00 3.49E+03 Ba-140 <9.53E+01 0.00E+00 9.53E+01 Total-Gam 0.00E+00 Sample ID: 417716 Sample Dates: 7/19/2016 - 7/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.59E+01 0.00E+00 1.59E+01 Co-58 <1.67E+01 0.00E+00 1.67E+01 Fe-59 <4.37E+01 0.00E+00 4.37E+01 Co-60 <9.25E+00 0.00E+00 9.25E+00 Zn-65 <4.38E+01 0.00E+00 4.38E+01 Zr-95 <2.87E+01 0.00E+00 2.87E+01 Nb-95 <1.91E+01 0.00E+00 1.91E+01 I-131 <2.88E+01 0.00E+00 2.88E+01 Cs-134 <1.66E+01 0.00E+00 1.66E+01 Cs-137 <1.17E+01 0.00E+00 1.17E+01 La-140 <7.56E+02 0.00E+00 7.56E+02 Ba-140 <9.55E+01 0.00E+00 9.55E+01 Total-Gam 0.00E+00 Sample ID: 418202 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <7.51E+00 0.00E+00 7.51E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 151 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 418202 Sample Dates: 7/26/2016 - 7/26/2016 Nuclide Activity 2 Sigma Error MDA Co-58 <1.66E+01 0.00E+00 1.66E+01 Fe-59 <3.05E+01 0.00E+00 3.05E+01 Co-60 <1.36E+01 0.00E+00 1.36E+01 Zn-65 <3.78E+01 0.00E+00 3.78E+01 Zr-95 <1.76E+01 0.00E+00 1.76E+01 Nb-95 <2.93E+01 0.00E+00 2.93E+01 I-131 <3.99E+01 0.00E+00 3.99E+01 Cs-134 <1.74E+01 0.00E+00 1.74E+01 Cs-137 <1.41E+01 0.00E+00 1.41E+01 La-140 <1.55E+04 0.00E+00 1.55E+04 Ba-140 <1.35E+02 0.00E+00 1.35E+02 Total-Gam 0.00E+00 Sample ID: 418930 Sample Dates: 8/2/2016 - 8/2/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.67E+01 0.00E+00 1.67E+01 Co-58 <1.40E+01 0.00E+00 1.40E+01 Fe-59 <2.77E+01 0.00E+00 2.77E+01 Co-60 <2.54E+01 0.00E+00 2.54E+01 Zn-65 <3.25E+01 0.00E+00 3.25E+01 Zr-95 <1.70E+01 0.00E+00 1.70E+01 Nb-95 <2.48E+01 0.00E+00 2.48E+01 I-131 <4.42E+01 0.00E+00 4.42E+01 Cs-134 <1.64E+01 0.00E+00 1.64E+01 Cs-137 <1.58E+01 0.00E+00 1.58E+01 La-140 <7.33E+03 0.00E+00 7.33E+03 Ba-140 <9.16E+01 0.00E+00 9.16E+01 Total-Gam 0.00E+00 Sample ID: 424039 Sample Dates: 8/16/2016 - 8/16/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.19E+01 0.00E+00 2.19E+01 Co-58 <1.92E+01 0.00E+00 1.92E+01 Fe-59 <5.14E+01 0.00E+00 5.14E+01 Co-60 <1.37E+01 0.00E+00 1.37E+01 Zn-65 <5.21E+01 0.00E+00 5.21E+01 Zr-95 <4.12E+01 0.00E+00 4.12E+01 Nb-95 <2.76E+01 0.00E+00 2.76E+01 I-131 <2.16E+02 0.00E+00 2.16E+02 Cs-134 <1.45E+01 0.00E+00 1.45E+01 Cs-137 <2.45E+01 0.00E+00 2.45E+01 La-140 <6.46E+06 0.00E+00 6.46E+06 Ba-140 <2.78E+02 0.00E+00 2.78E+02 Total-Gam 0.00E+00 Sample ID: 424335 Sample Dates: 8/23/2016 - 8/23/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.33E+01 0.00E+00 1.33E+01 Co-58 <2.08E+01 0.00E+00 2.08E+01 Fe-59 <4.88E+01 0.00E+00 4.88E+01 Co-60 <1.67E+01 0.00E+00 1.67E+01 Zn-65 <1.95E+01 0.00E+00 1.95E+01 Zr-95 <4.59E+01 0.00E+00 4.59E+01 Nb-95 <3.27E+01 0.00E+00 3.27E+01 I-131 <1.63E+02 0.00E+00 1.63E+02 Cs-134 <1.55E+01 0.00E+00 1.55E+01 Cs-137 <1.73E+01 0.00E+00 1.73E+01 La-140 <1.60E+06 0.00E+00 1.60E+06 Ba-140 <2.15E+02 0.00E+00 2.15E+02 Total-Gam 0.00E+00 Sample ID: 424360 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.31E+01 0.00E+00 1.31E+01 Co-58 <1.51E+01 0.00E+00 1.51E+01 Fe-59 <4.92E+01 0.00E+00 4.92E+01 Co-60 <1.06E+01 0.00E+00 1.06E+01 Zn-65 <2.71E+01 0.00E+00 2.71E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 152 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 424360 Sample Dates: 8/30/2016 - 8/30/2016 Nuclide Activity 2 Sigma Error MDA Zr-95 <3.38E+01 0.00E+00 3.38E+01 Nb-95 <2.68E+01 0.00E+00 2.68E+01 I-131 <9.15E+01 0.00E+00 9.15E+01 Cs-134 <1.18E+01 0.00E+00 1.18E+01 Cs-137 <1.87E+01 0.00E+00 1.87E+01 La-140 <1.01E+05 0.00E+00 1.01E+05 Ba-140 <1.37E+02 0.00E+00 1.37E+02 Total-Gam 0.00E+00 Sample ID: 427621 Sample Dates: 9/6/2016 - 9/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.96E+01 0.00E+00 1.96E+01 Co-58 <1.48E+01 0.00E+00 1.48E+01 Fe-59 <4.63E+01 0.00E+00 4.63E+01 Co-60 <9.09E+00 0.00E+00 9.09E+00 Zn-65 <3.10E+01 0.00E+00 3.10E+01 Zr-95 <2.67E+01 0.00E+00 2.67E+01 Nb-95 <4.31E+01 0.00E+00 4.31E+01 I-131 <1.89E+03 0.00E+00 1.89E+03 Cs-134 <1.45E+01 0.00E+00 1.45E+01 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <2.98E+11 0.00E+00 2.98E+11 Ba-140 <1.06E+03 0.00E+00 1.06E+03 Total-Gam 0.00E+00 Sample ID: 423254 Sample Dates: 9/13/2016 - 9/13/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.53E+01 0.00E+00 1.53E+01 Co-58 <1.40E+01 0.00E+00 1.40E+01 Fe-59 <7.32E+01 0.00E+00 7.32E+01 Co-60 <8.20E+00 0.00E+00 8.20E+00 Zn-65 <3.05E+01 0.00E+00 3.05E+01 Zr-95 <4.34E+01 0.00E+00 4.34E+01 Nb-95 <3.83E+01 0.00E+00 3.83E+01 I-131 <1.22E+03 0.00E+00 1.22E+03 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <0.00E+00 0.00E+00 0.00E+00 La-140 <2.26E+10 0.00E+00 2.26E+10 Ba-140 <7.68E+02 0.00E+00 7.68E+02 Total-Gam 0.00E+00 Sample ID: 424372 Sample Dates: 9/21/2016 - 9/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.65E+01 0.00E+00 1.65E+01 Co-58 <2.04E+01 0.00E+00 2.04E+01 Fe-59 <2.64E+01 0.00E+00 2.64E+01 Co-60 <8.17E+00 0.00E+00 8.17E+00 Zn-65 <3.44E+01 0.00E+00 3.44E+01 Zr-95 <3.25E+01 0.00E+00 3.25E+01 Nb-95 <2.98E+01 0.00E+00 2.99E+01 I-131 <5.67E+02 0.00E+00 5.67E+02 Cs-134 <1.43E+01 0.00E+00 1.43E+01 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <5.76E+08 0.00E+00 5.76E+08 Ba-140 <4.30E+02 0.00E+00 4.30E+02 Total-Gam 0.00E+00 Sample ID: 425371 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.55E+01 0.00E+00 1.55E+01 Fe-59 <2.56E+01 0.00E+00 2.56E+01 Co-60 <1.63E+01 0.00E+00 1.63E+01 Zn-65 <2.96E+01 0.00E+00 2.96E+01 Zr-95 <4.21E+01 0.00E+00 4.21E+01 Nb-95 <2.22E+01 0.00E+00 2.22E+01 I-131 <3.52E+02 0.00E+00 3.52E+02 Cs-134 <7.06E+00 0.00E+00 7.06E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 153 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 425371 Sample Dates: 9/27/2016 - 9/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-137 <1.58E+01 0.00E+00 1.58E+01 La-140 <3.64E+08 0.00E+00 3.64E+08 Ba-140 <3.87E+02 0.00E+00 3.87E+02 Total-Gam 0.00E+00 Sample ID: 425933 Sample Dates: 10/4/2016 - 10/4/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.48E+01 0.00E+00 1.48E+01 Co-58 <1.48E+01 0.00E+00 1.48E+01 Fe-59 <3.53E+01 0.00E+00 3.53E+01 Co-60 <9.02E+00 0.00E+00 9.02E+00 Zn-65 <2.39E+01 0.00E+00 2.39E+01 Zr-95 <3.37E+01 0.00E+00 3.37E+01 Nb-95 <2.33E+01 0.00E+00 2.33E+01 I-131 <3.12E+02 0.00E+00 3.12E+02 Cs-134 <1.49E+01 0.00E+00 1.49E+01 Cs-137 <1.68E+01 0.00E+00 1.68E+01 La-140 <4.68E+07 0.00E+00 4.68E+07 Ba-140 <3.63E+02 0.00E+00 3.63E+02 Total-Gam 0.00E+00 Sample ID: 426306 Sample Dates: 10/12/2016 - 10/12/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <9.21E+00 0.00E+00 9.21E+00 Co-58 <1.95E+01 0.00E+00 1.95E+01 Fe-59 <4.46E+01 0.00E+00 4.46E+01 Co-60 <1.27E+01 0.00E+00 1.27E+01 Zn-65 <2.86E+01 0.00E+00 2.86E+01 Zr-95 <2.41E+01 0.00E+00 2.41E+01 Nb-95 <2.02E+01 0.00E+00 2.02E+01 I-131 <1.39E+02 0.00E+00 1.39E+02 Cs-134 <1.40E+01 0.00E+00 1.40E+01 Cs-137 <1.68E+01 0.00E+00 1.68E+01 La-140 <2.35E+06 0.00E+00 2.35E+06 Ba-140 <2.71E+02 0.00E+00 2.71E+02 Total-Gam 0.00E+00 Sample ID: 426995 Sample Dates: 10/18/2016 - 10/18/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.83E+01 0.00E+00 1.83E+01 Co-58 <1.56E+01 0.00E+00 1.56E+01 Fe-59 <5.29E+01 0.00E+00 5.29E+01 Co-60 <1.15E+01 0.00E+00 1.15E+01 Zn-65 <3.67E+01 0.00E+00 3.67E+01 Zr-95 <1.93E+01 0.00E+00 1.93E+01 Nb-95 <2.38E+01 0.00E+00 2.38E+01 I-131 <1.11E+02 0.00E+00 1.11E+02 Cs-134 <1.41E+01 0.00E+00 1.41E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 La-140 <7.38E+05 0.00E+00 7.38E+05 Ba-140 <2.20E+02 0.00E+00 2.20E+02 Total-Gam 0.00E+00 Sample ID: 427652 Sample Dates: 10/26/2016 - 10/26/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.56E+01 0.00E+00 1.56E+01 Co-58 <1.62E+01 0.00E+00 1.62E+01 Fe-59 <1.82E+01 0.00E+00 1.82E+01 Co-60 <1.40E+01 0.00E+00 1.40E+01 Zn-65 <2.78E+01 0.00E+00 2.78E+01 Zr-95 <2.51E+01 0.00E+00 2.51E+01 Nb-95 <1.67E+01 0.00E+00 1.67E+01 I-131 <6.96E+01 0.00E+00 6.96E+01 Cs-134 <1.20E+01 0.00E+00 1.20E+01 Cs-137 <1.78E+01 0.00E+00 1.78E+01 La-140 <7.22E+04 0.00E+00 7.22E+04 Ba-140 <8.35E+01 0.00E+00 8.35E+01 Total-Gam 0.00E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 154 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 428151 Sample Dates: 11/1/2016 - 11/1/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.37E+01 0.00E+00 1.37E+01 Co-58 <1.37E+01 0.00E+00 1.37E+01 Fe-59 <2.08E+01 0.00E+00 2.08E+01 Co-60 <1.26E+01 0.00E+00 1.26E+01 Zn-65 <2.17E+01 0.00E+00 2.17E+01 Zr-95 <2.08E+01 0.00E+00 2.08E+01 Nb-95 <1.46E+01 0.00E+00 1.46E+01 I-131 <1.78E+01 0.00E+00 1.78E+01 Cs-134 <1.28E+01 0.00E+00 1.27E+01 Cs-137 <1.78E+01 0.00E+00 1.78E+01 La-140 <5.07E+01 0.00E+00 5.07E+01 Ba-140 <5.40E+01 0.00E+00 5.40E+01 Total-Gam 0.00E+00 Sample ID: 428826 Sample Dates: 11/8/2016 - 11/8/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.37E+01 0.00E+00 1.37E+01 Fe-59 <2.41E+01 0.00E+00 2.41E+01 Co-60 <1.39E+01 0.00E+00 1.39E+01 Zn-65 <2.65E+01 0.00E+00 2.65E+01 Zr-95 <1.47E+01 0.00E+00 1.47E+01 Nb-95 <1.45E+01 0.00E+00 1.45E+01 I-131 <1.71E+01 0.00E+00 1.71E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <4.20E+01 0.00E+00 4.20E+01 Ba-140 <5.02E+01 0.00E+00 5.02E+01 Total-Gam 0.00E+00 Sample ID: 429344 Sample Dates: 11/15/2016 - 11/15/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <2.03E+01 0.00E+00 2.03E+01 Co-58 <1.48E+01 0.00E+00 1.48E+01 Fe-59 <3.36E+01 0.00E+00 3.36E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <2.64E+01 0.00E+00 2.64E+01 Zr-95 <2.52E+01 0.00E+00 2.52E+01 Nb-95 <1.43E+01 0.00E+00 1.43E+01 I-131 <1.63E+01 0.00E+00 1.63E+01 Cs-134 <9.73E+00 0.00E+00 9.73E+00 Cs-137 <1.19E+01 0.00E+00 1.19E+01 La-140 <2.87E+01 0.00E+00 2.87E+01 Ba-140 <3.61E+01 0.00E+00 3.61E+01 Total-Gam 0.00E+00 Sample ID: 429895 Sample Dates: 11/21/2016 - 11/21/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <6.45E+00 0.00E+00 6.45E+00 Co-58 <7.00E+00 0.00E+00 7.00E+00 Fe-59 <1.37E+01 0.00E+00 1.37E+01 Co-60 <8.05E+00 0.00E+00 8.05E+00 Zn-65 <2.16E+01 0.00E+00 2.16E+01 Zr-95 <1.03E+01 0.00E+00 1.03E+01 Nb-95 <7.26E+00 0.00E+00 7.26E+00 I-131 <8.87E+00 0.00E+00 8.87E+00 Cs-134 <8.58E+00 0.00E+00 8.58E+00 Cs-137 <7.67E+00 0.00E+00 7.67E+00 La-140 <9.52E+00 0.00E+00 9.52E+00 Ba-140 <2.55E+01 0.00E+00 2.55E+01 Total-Gam 0.00E+00 Sample ID: 430515 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.62E+01 0.00E+00 1.62E+01 Co-58 <1.37E+01 0.00E+00 1.37E+01 Fe-59 <2.41E+01 0.00E+00 2.41E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 155 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 430515 Sample Dates: 11/29/2016 - 11/29/2016 Nuclide Activity 2 Sigma Error MDA Zn-65 <3.06E+01 0.00E+00 3.06E+01 Zr-95 <2.08E+01 0.00E+00 2.08E+01 Nb-95 <1.45E+01 0.00E+00 1.45E+01 I-131 <1.21E+01 0.00E+00 1.21E+01 Cs-134 <9.74E+00 0.00E+00 9.74E+00 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <2.43E+01 0.00E+00 2.43E+01 Ba-140 <5.02E+01 0.00E+00 5.02E+01 Total-Gam 0.00E+00 Sample ID: 431003 Sample Dates: 12/6/2016 - 12/6/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.62E+01 0.00E+00 1.62E+01 Co-58 <1.20E+01 0.00E+00 1.20E+01 Fe-59 <3.58E+01 0.00E+00 3.58E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <2.64E+01 0.00E+00 2.64E+01 Zr-95 <2.04E+01 0.00E+00 2.04E+01 Nb-95 <8.09E+00 0.00E+00 8.08E+00 I-131 <1.35E+01 0.00E+00 1.35E+01 Cs-134 <9.62E+00 0.00E+00 9.62E+00 Cs-137 <1.33E+01 0.00E+00 1.33E+01 La-140 <1.14E+01 0.00E+00 1.14E+01 Ba-140 <5.16E+01 0.00E+00 5.16E+01 Total-Gam 0.00E+00 Sample ID: 431411 Sample Dates: 12/13/2016 - 12/13/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <8.51E+00 0.00E+00 8.50E+00 Fe-59 <1.36E+01 0.00E+00 1.36E+01 Co-60 <8.05E+00 0.00E+00 8.05E+00 Zn-65 <2.64E+01 0.00E+00 2.64E+01 Zr-95 <2.89E+01 0.00E+00 2.89E+01 Nb-95 <1.52E+01 0.00E+00 1.52E+01 I-131 <1.53E+01 0.00E+00 1.53E+01 Cs-134 <9.62E+00 0.00E+00 9.62E+00 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <1.70E+01 0.00E+00 1.70E+01 Ba-140 <3.46E+01 0.00E+00 3.46E+01 Total-Gam 0.00E+00 Sample ID: 431742 Sample Dates: 12/19/2016 - 12/19/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.37E+01 0.00E+00 1.37E+01 Co-58 <1.05E+01 0.00E+00 1.05E+01 Fe-59 <1.94E+01 0.00E+00 1.94E+01 Co-60 <1.54E+01 0.00E+00 1.54E+01 Zn-65 <3.74E+01 0.00E+00 3.74E+01 Zr-95 <1.26E+01 0.00E+00 1.26E+01 Nb-95 <1.42E+01 0.00E+00 1.42E+01 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <9.73E+00 0.00E+00 9.73E+00 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <1.63E+01 0.00E+00 1.63E+01 Ba-140 <4.41E+01 0.00E+00 4.41E+01 Total-Gam 0.00E+00 Sample ID: 432143 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Mn-54 <1.37E+01 0.00E+00 1.37E+01 Co-58 <1.20E+01 0.00E+00 1.20E+01 Fe-59 <1.92E+01 0.00E+00 1.92E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <1.52E+01 0.00E+00 1.52E+01 Zr-95 <1.44E+01 0.00E+00 1.44E+01 Nb-95 <1.62E+01 0.00E+00 1.62E+01 I-131 <1.30E+01 0.00E+00 1.30E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 156 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 1067 Sample Point 1067 [ INDICATOR - @ 0 miles ]

Sample ID: 432143 Sample Dates: 12/27/2016 - 12/27/2016 Nuclide Activity 2 Sigma Error MDA Cs-134 <1.08E+01 0.00E+00 1.08E+01 Cs-137 <1.46E+01 0.00E+00 1.46E+01 La-140 <1.19E+01 0.00E+00 1.19E+01 Ba-140 <4.89E+01 0.00E+00 4.89E+01 Total-Gam 0.00E+00 Media Type: TLD Concentration (Activity): mR/Standard Quarter 1 Sample Point 1 [ INDICATOR - E @ 1.1 miles ] TLD RING TLD_INNER Sample ID: 403311 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 11.51 Sample ID: 412885 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 11.76 Sample ID: 420884 Sample Dates: 7/6/2016 - 10/13/2016 Nuclide Activity mR/Std Qtr 8.67 Sample ID: 430231 Sample Dates: 10/13/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.83 Sample Point 2 [ INDICATOR - ESE @ 0.9 miles ] TLD RING TLD_INNER Sample ID: 403321 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 9.43 Sample ID: 412895 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.52 Sample ID: 420894 Sample Dates: 7/6/2016 - 10/13/2016 Nuclide Activity mR/Std Qtr 8.58 Sample ID: 430241 Sample Dates: 10/13/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.81 Sample Point 3 [ INDICATOR - SE @ 0.9 miles ] TLD RING TLD_INNER Sample ID: 403332 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 8.92 Sample ID: 412906 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 13.45 Sample ID: 420905 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.22 Sample ID: 430252 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 12.76 Sample Point 4 [ INDICATOR - SSE @ 1.1 miles ] TLD RING TLD_INNER Sample ID: 403343 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 10.55 Sample ID: 412917 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.49 Sample ID: 420916 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.04 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 157 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 5 Sample Point 5 [ INDICATOR - S @ 1.1 miles ] TLD RING TLD_INNER Sample ID: 403345 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 9.91 Sample ID: 412919 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.97 Sample ID: 420918 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.48 Sample ID: 430265 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 9.93 Sample Point 6 [ INDICATOR - SSW @ 1.6 miles ] TLD RING TLD_INNER Sample ID: 403346 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 9.13 Sample ID: 412920 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.07 Sample ID: 420919 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 7.74 Sample ID: 430266 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 9.60 Sample Point 7 [ INDICATOR - SW @ 1.1 miles ] TLD RING TLD_INNER Sample ID: 403347 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 11.42 Sample ID: 412921 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.63 Sample ID: 420920 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 7.48 Sample ID: 430267 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.26 Sample Point 8 [ INDICATOR - W @ 1.2 miles ] TLD RING TLD_INNER Sample ID: 403353 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 8.96 Sample ID: 412927 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 9.70 Sample ID: 420926 Sample Dates: 7/7/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 7.48 Sample ID: 430273 Sample Dates: 10/10/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 9.48 Sample Point 9 [ INDICATOR - WNW @ 1 miles ] TLD RING TLD_INNER Sample ID: 403359 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 8.87 Sample ID: 412933 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.00 Sample ID: 420932 Sample Dates: 7/7/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 7.57 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 158 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 9 Sample Point 9 [ INDICATOR - WNW @ 1 miles ] TLD RING TLD_INNER Sample ID: 430279 Sample Dates: 10/10/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 8.89 Sample Point 10 [ INDICATOR - NW @ 0.8 miles ] TLD RING TLD_INNER Sample ID: 403312 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 9.59 Sample ID: 412886 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 8.93 Sample ID: 420885 Sample Dates: 7/7/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 6.17 Sample ID: 430232 Sample Dates: 10/10/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 8.98 Sample Point 11 [ INDICATOR - NNW @ 0.9 miles ] TLD RING TLD_INNER Sample ID: 403313 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 11.97 Sample ID: 412887 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.87 Sample ID: 420886 Sample Dates: 7/7/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.55 Sample ID: 430233 Sample Dates: 10/10/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 9.46 Sample Point 12 [ INDICATOR - N @ 1.1 miles ] TLD RING TLD_INNER Sample ID: 403314 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 10.54 Sample ID: 412888 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.87 Sample ID: 420887 Sample Dates: 7/7/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.26 Sample ID: 430234 Sample Dates: 10/10/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 12.97 Sample Point 13 [ INDICATOR - NNE @ 1.2 miles ] TLD RING TLD_INNER Sample ID: 403315 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 12.14 Sample ID: 412889 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 9.47 Sample ID: 420888 Sample Dates: 7/7/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 6.50 Sample ID: 430235 Sample Dates: 10/10/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 7.84 Sample Point 14 [ INDICATOR - NE @ 0.5 miles ] TLD RING TLD_INNER Sample ID: 403316 Sample Dates: 1/7/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 13.20 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 159 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 14 Sample Point 14 [ INDICATOR - NE @ 0.5 miles ] TLD RING TLD_INNER Sample ID: 412890 Sample Dates: 4/7/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 11.72 Sample ID: 420889 Sample Dates: 7/8/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 10.36 Sample ID: 430236 Sample Dates: 10/11/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 9.55 Sample Point 15 [ INDICATOR - ENE @ 0.9 miles ] TLD RING TLD_INNER Sample ID: 403317 Sample Dates: 1/7/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 10.84 Sample ID: 412891 Sample Dates: 4/7/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 13.27 Sample ID: 420890 Sample Dates: 7/8/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 9.76 Sample ID: 430237 Sample Dates: 10/11/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 12.36 Sample Point 16 [ INDICATOR - WSW @ 1 miles ] TLD RING TLD_INNER Sample ID: 403318 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 10.20 Sample ID: 412892 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.28 Sample ID: 420891 Sample Dates: 7/7/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.92 Sample ID: 430238 Sample Dates: 10/10/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 9.20 Sample Point 17 [ INDICATOR - ESE @ 1.4 miles ] TLD RING TLD_INNER Sample ID: 403319 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 11.54 Sample ID: 412893 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 13.21 Sample ID: 420892 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.47 Sample ID: 430239 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 12.98 Sample Point 18 [ INDICATOR - SE @ 1.7 miles ] TLD RING TLD_INNER Sample ID: 403320 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 9.34 Sample ID: 412894 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.43 Sample ID: 420893 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 8.15 Sample ID: 430240 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 9.24 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 160 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 20 Sample Point 20 [ INDICATOR - S @ 2.1 miles ] TLD RING TLD_INNER Sample ID: 403322 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 9.64 Sample ID: 412896 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.10 Sample ID: 420895 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 7.90 Sample ID: 430242 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.41 Sample Point 21 [ INDICATOR - SSW @ 2.9 miles ] TLD RING TLD_INNER Sample ID: 403323 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 12.73 Sample ID: 412897 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 12.83 Sample ID: 420896 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 10.11 Sample ID: 430243 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 12.69 Sample Point 22 [ INDICATOR - SW @ 5.3 miles ] TLD RING TLD_OUTER Sample ID: 403324 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 9.44 Sample ID: 412898 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.68 Sample ID: 420897 Sample Dates: 7/6/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 9.65 Sample ID: 430244 Sample Dates: 10/11/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 11.90 Sample Point 23 [ INDICATOR - WSW @ 4.6 miles ] TLD RING TLD_OUTER Sample ID: 403325 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 6.91 Sample ID: 412899 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 8.09 Sample ID: 420898 Sample Dates: 7/6/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 3.14 Sample ID: 430245 Sample Dates: 10/11/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 6.77 Sample Point 24 [ INDICATOR - W @ 3 miles ] TLD RING TLD_INNER Sample ID: 403326 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 14.12 Sample ID: 412900 Sample Dates: 4/5/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 14.10 Sample ID: 420899 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 12.19 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 161 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 24 Sample Point 24 [ INDICATOR - W @ 3 miles ] TLD RING TLD_INNER Sample ID: 430246 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 13.80 Sample Point 25 [ INDICATOR - WNW @ 8.6 miles ] TLD RING TLD_OUTER Sample ID: 403327 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 9.55 Sample ID: 412901 Sample Dates: 4/5/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.78 Sample ID: 420900 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 8.22 Sample ID: 430247 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.75 Sample Point 26 [ INDICATOR - NW @ 5.9 miles ] TLD RING TLD_OUTER Sample ID: 403328 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 12.75 Sample ID: 412902 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 12.90 Sample ID: 420901 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 11.70 Sample ID: 430248 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.76 Sample Point 27 [ INDICATOR - NNW @ 5.1 miles ] TLD RING TLD_OUTER Sample ID: 403329 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 8.44 Sample ID: 412903 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 9.90 Sample ID: 420902 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 5.98 Sample ID: 430249 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 8.40 Sample Point 28 [ INDICATOR - NW @ 4.2 miles ] TLD RING TLD_OUTER Sample ID: 403330 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 9.38 Sample ID: 420903 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 8.20 Sample ID: 430250 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 8.77 Sample Point 29 [ INDICATOR - SSW @ 2.6 miles ] TLD RING TLD_INNER Sample ID: 403331 Sample Dates: 1/5/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 8.60 Sample ID: 412905 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 9.40 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 162 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 29 Sample Point 29 [ INDICATOR - SSW @ 2.6 miles ] TLD RING TLD_INNER Sample ID: 420904 Sample Dates: 7/6/2016 - 10/10/2016 Nuclide Activity mR/Std Qtr 7.04 Sample ID: 430251 Sample Dates: 10/10/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 8.53 Sample Point 30 [ INDICATOR - NE @ 2 miles ] TLD RING TLD_INNER Sample ID: 403333 Sample Dates: 1/7/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 9.28 Sample ID: 412907 Sample Dates: 4/6/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 10.95 Sample ID: 420906 Sample Dates: 7/8/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 8.57 Sample ID: 430253 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 12.69 Sample Point 31 [ INDICATOR - ENE @ 2.5 miles ] TLD RING TLD_INNER Sample ID: 403334 Sample Dates: 1/7/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 9.84 Sample ID: 412908 Sample Dates: 4/6/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 13.06 Sample ID: 420907 Sample Dates: 7/8/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 8.28 Sample ID: 430254 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 6.57 Sample Point 32 [ INDICATOR - ENE @ 5.8 miles ] TLD RING TLD_OUTER Sample ID: 403335 Sample Dates: 1/9/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 12.88 Sample ID: 412909 Sample Dates: 4/6/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 12.23 Sample ID: 420908 Sample Dates: 7/6/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 10.09 Sample ID: 430255 Sample Dates: 10/12/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 11.29 Sample Point 33 [ INDICATOR - E @ 4.1 miles ] TLD RING TLD_OUTER Sample ID: 403336 Sample Dates: 1/9/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 9.12 Sample ID: 412910 Sample Dates: 4/6/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 11.22 Sample ID: 420909 Sample Dates: 7/6/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 5.96 Sample ID: 430256 Sample Dates: 10/12/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 9.11 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 163 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 34 Sample Point 34 [ INDICATOR - E @ 5.4 miles ] TLD RING TLD_OUTER Sample ID: 403337 Sample Dates: 1/9/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 8.62 Sample ID: 412911 Sample Dates: 4/6/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 9.62 Sample ID: 420910 Sample Dates: 7/6/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 7.43 Sample ID: 430257 Sample Dates: 10/12/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 9.13 Sample Point 35 [ INDICATOR - SSE @ 7.3 miles ] TLD RING TLD_OUTER Sample ID: 403338 Sample Dates: 1/14/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 7.19 Sample ID: 412912 Sample Dates: 4/7/2016 - 7/11/2016 Nuclide Activity mR/Std Qtr 8.67 Sample ID: 420911 Sample Dates: 7/11/2016 - 10/17/2016 Nuclide Activity mR/Std Qtr 6.21 Sample ID: 430258 Sample Dates: 10/17/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 6.93 Sample Point 36 [ INDICATOR - NE @ 8.9 miles ] TLD RING TLD_OUTER Sample ID: 403339 Sample Dates: 1/9/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 9.45 Sample ID: 412913 Sample Dates: 4/6/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 10.70 Sample ID: 420912 Sample Dates: 7/6/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 8.38 Sample ID: 430259 Sample Dates: 10/12/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 8.67 Sample Point 37 [ INDICATOR - NW @ 5.5 miles ] TLD RING TLD_OUTER Sample ID: 403340 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 6.92 Sample ID: 412914 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.50 Sample ID: 420913 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 6.31 Sample ID: 430260 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 9.37 Sample Point 38 [ INDICATOR - W @ 11 miles ] TLD RING TLD_OUTER Sample ID: 403341 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 10.23 Sample ID: 412915 Sample Dates: 4/5/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.43 Sample ID: 420914 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 9.11 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 164 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 38 Sample Point 38 [ INDICATOR - W @ 11 miles ] TLD RING TLD_OUTER Sample ID: 430261 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 9.34 Sample Point 39 [ INDICATOR - SW @ 5.3 miles ] TLD RING TLD_OUTER Sample ID: 403342 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 17.61 Sample ID: 412916 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 13.79 Sample ID: 420915 Sample Dates: 7/6/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 12.17 Sample ID: 430262 Sample Dates: 10/11/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 15.25 Sample Point 40 [ INDICATOR - WSW @ 6.9 miles ] TLD RING TLD_OUTER Sample ID: 403344 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 16.44 Sample ID: 412918 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 14.40 Sample ID: 420917 Sample Dates: 7/6/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 11.43 Sample ID: 430264 Sample Dates: 10/11/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 13.29 Sample Point 75 [ INDICATOR - S @ 4.7 miles ] TLD RING TLD_OUTER Sample ID: 403348 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 12.79 Sample ID: 412922 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 11.25 Sample ID: 420921 Sample Dates: 7/6/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 9.85 Sample ID: 430268 Sample Dates: 10/11/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.72 Sample Point 76 [ INDICATOR - SSW @ 4.8 miles ] TLD RING TLD_OUTER Sample ID: 403349 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 11.02 Sample ID: 412923 Sample Dates: 4/5/2016 - 7/6/2016 Nuclide Activity mR/Std Qtr 11.39 Sample ID: 420922 Sample Dates: 7/6/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 8.97 Sample ID: 430269 Sample Dates: 10/11/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.52 Sample Point 77 [ INDICATOR - S @ 5.4 miles ] TLD RING TLD_OUTER Sample ID: 403350 Sample Dates: 1/14/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 9.88 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 165 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 77 Sample Point 77 [ INDICATOR - S @ 5.4 miles ] TLD RING TLD_OUTER Sample ID: 412924 Sample Dates: 4/7/2016 - 7/11/2016 Nuclide Activity mR/Std Qtr 8.64 Sample ID: 420923 Sample Dates: 7/11/2016 - 10/17/2016 Nuclide Activity mR/Std Qtr 5.95 Sample ID: 430270 Sample Dates: 10/17/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 7.12 Sample Point 78 [ INDICATOR - NNE @ 9.9 miles ] TLD RING TLD_OUTER Sample ID: 403351 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 8.42 Sample ID: 412925 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 9.31 Sample ID: 420924 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 6.79 Sample ID: 430271 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 8.03 Sample Point 79 [ INDICATOR - N @ 9.5 miles ] TLD RING TLD_OUTER Sample ID: 403352 Sample Dates: 1/5/2016 - 4/6/2016 Nuclide Activity mR/Std Qtr 9.35 Sample ID: 412926 Sample Dates: 4/6/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 10.94 Sample ID: 420925 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 7.66 Sample ID: 430272 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 9.77 Sample Point 81 [ CONTROL - WNW @ 9.9 miles ] TLD RING TLD_CTRL Sample ID: 403354 Sample Dates: 1/6/2016 - 4/5/2016 Nuclide Activity mR/Std Qtr 10.95 Sample ID: 412928 Sample Dates: 4/5/2016 - 7/7/2016 Nuclide Activity mR/Std Qtr 11.45 Sample ID: 420927 Sample Dates: 7/7/2016 - 10/12/2016 Nuclide Activity mR/Std Qtr 8.49 Sample ID: 430274 Sample Dates: 10/12/2016 - 1/4/2017 Nuclide Activity mR/Std Qtr 10.31 Sample Point 82 [ INDICATOR - NNE @ 0.17 miles ] TLD RING NOT_APPLIC Sample ID: 403355 Sample Dates: 1/7/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 21.70 Sample ID: 412929 Sample Dates: 4/7/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 28.63 Sample ID: 420928 Sample Dates: 7/8/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 23.96 Sample ID: 430275 Sample Dates: 10/11/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 24.03 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 166 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 83 Sample Point 83 [ INDICATOR - NE @ 0.27 miles ] TLD RING NOT_APPLIC Sample ID: 403356 Sample Dates: 1/7/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 20.87 Sample ID: 412930 Sample Dates: 4/7/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 26.27 Sample ID: 420929 Sample Dates: 7/8/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 23.49 Sample ID: 430276 Sample Dates: 10/11/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 28.02 Sample Point 84 [ INDICATOR - NE @ 0.27 miles ] TLD RING NOT_APPLIC Sample ID: 403357 Sample Dates: 1/7/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 19.56 Sample ID: 412931 Sample Dates: 4/7/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 20.61 Sample ID: 420930 Sample Dates: 7/8/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 16.50 Sample ID: 430277 Sample Dates: 10/11/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 18.22 Sample Point 85 [ INDICATOR - ENE @ 0.09 miles ] TLD RING NOT_APPLIC Sample ID: 403358 Sample Dates: 1/7/2016 - 4/7/2016 Nuclide Activity mR/Std Qtr 20.58 Sample ID: 412932 Sample Dates: 4/7/2016 - 7/8/2016 Nuclide Activity mR/Std Qtr 28.80 Sample ID: 420931 Sample Dates: 7/8/2016 - 10/11/2016 Nuclide Activity mR/Std Qtr 25.29 Sample ID: 430278 Sample Dates: 10/11/2016 - 1/5/2017 Nuclide Activity mR/Std Qtr 24.12 Media Type: VEGETATION Concentration (Activity): pCi/kg wet 800 Sample Point 800 [ INDICATOR - NE @ 0.7 miles ]

Sample ID: 399450 Sample Dates: 1/5/2016 - 1/5/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.18E+01 0.00E+00 2.18E+01 Co-58 <2.14E+01 0.00E+00 2.14E+01 Fe-59 <4.25E+01 0.00E+00 4.25E+01 Co-60 <2.72E+01 0.00E+00 2.72E+01 Zn-65 <4.18E+01 0.00E+00 4.18E+01 Zr-95 <4.05E+01 0.00E+00 4.05E+01 Nb-95 <1.95E+01 0.00E+00 1.95E+01 I-131 <3.18E+01 0.00E+00 3.18E+01 Cs-134 <2.21E+01 0.00E+00 2.21E+01 Cs-137 <2.18E+01 0.00E+00 2.18E+01 BaLa-140 <3.64E+01 0.00E+00 3.64E+01 Be-7 3.37E+03 4.68E+02 2.31E+02 K-40 1.59E+03 4.41E+02 4.60E+02 Sample ID: 401508 Sample Dates: 2/1/2016 - 2/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <1.52E+01 0.00E+00 1.52E+01 Fe-59 <2.67E+01 0.00E+00 2.67E+01 Co-60 <1.68E+01 0.00E+00 1.68E+01 Zn-65 <3.85E+01 0.00E+00 3.85E+01 Zr-95 <2.81E+01 0.00E+00 2.81E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 167 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 800 Sample Point 800 [ INDICATOR - NE @ 0.7 miles ]

Sample ID: 401508 Sample Dates: 2/1/2016 - 2/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Nb-95 <1.92E+01 0.00E+00 1.92E+01 I-131 <1.62E+01 0.00E+00 1.62E+01 Cs-134 <2.10E+01 0.00E+00 2.10E+01 Cs-137 <1.89E+01 0.00E+00 1.89E+01 BaLa-140 <2.03E+01 0.00E+00 2.03E+01 Be-7 3.34E+03 4.34E+02 2.17E+02 K-40 2.12E+03 4.52E+02 3.82E+02 Sample ID: 405295 Sample Dates: 3/1/2016 - 3/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.28E+01 0.00E+00 2.28E+01 Co-58 <2.16E+01 0.00E+00 2.16E+01 Fe-59 <4.94E+01 0.00E+00 4.94E+01 Co-60 <2.14E+01 0.00E+00 2.14E+01 Zn-65 <5.21E+01 0.00E+00 5.21E+01 Zr-95 <3.33E+01 0.00E+00 3.33E+01 Nb-95 <2.21E+01 0.00E+00 2.21E+01 I-131 <1.58E+01 0.00E+00 1.58E+01 Cs-134 <2.01E+01 0.00E+00 2.01E+01 Cs-137 <2.11E+01 0.00E+00 2.11E+01 BaLa-140 <2.46E+01 0.00E+00 2.46E+01 Be-7 3.33E+03 4.76E+02 2.82E+02 K-40 2.16E+03 4.61E+02 2.19E+02 Sample ID: 408368 Sample Dates: 4/4/2016 - 4/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.81E+01 0.00E+00 1.81E+01 Co-58 <1.42E+01 0.00E+00 1.42E+01 Fe-59 <3.73E+01 0.00E+00 3.73E+01 Co-60 <1.71E+01 0.00E+00 1.71E+01 Zn-65 <4.16E+01 0.00E+00 4.16E+01 Zr-95 <2.25E+01 0.00E+00 2.25E+01 Nb-95 <2.30E+01 0.00E+00 2.30E+01 I-131 <1.82E+01 0.00E+00 1.82E+01 Cs-134 <2.46E+01 0.00E+00 2.46E+01 Cs-137 <1.58E+01 0.00E+00 1.58E+01 BaLa-140 <1.55E+01 0.00E+00 1.55E+01 Be-7 3.37E+03 4.46E+02 2.59E+02 K-40 2.90E+03 5.11E+02 2.76E+02 Sample ID: 411581 Sample Dates: 5/2/2016 - 5/2/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.54E+01 0.00E+00 1.54E+01 Co-58 <1.74E+01 0.00E+00 1.74E+01 Fe-59 <2.54E+01 0.00E+00 2.54E+01 Co-60 <1.62E+01 0.00E+00 1.62E+01 Zn-65 <3.32E+01 0.00E+00 3.32E+01 Zr-95 <2.25E+01 0.00E+00 2.25E+01 Nb-95 <1.85E+01 0.00E+00 1.85E+01 I-131 <1.55E+01 0.00E+00 1.55E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.33E+01 0.00E+00 1.33E+01 Be-7 3.95E+02 1.45E+02 1.85E+02 K-40 3.20E+03 4.92E+02 3.68E+01 Sample ID: 413646 Sample Dates: 6/1/2016 - 6/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.65E+01 0.00E+00 1.65E+01 Co-58 <2.23E+01 0.00E+00 2.23E+01 Fe-59 <3.20E+01 0.00E+00 3.20E+01 Co-60 <2.18E+01 0.00E+00 2.18E+01 Zn-65 <4.79E+01 0.00E+00 4.79E+01 Zr-95 <3.14E+01 0.00E+00 3.14E+01 Nb-95 <2.32E+01 0.00E+00 2.32E+01 I-131 <2.93E+01 0.00E+00 2.93E+01 Cs-134 <2.23E+01 0.00E+00 2.23E+01 Cs-137 <2.19E+01 0.00E+00 2.19E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 168 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 800 Sample Point 800 [ INDICATOR - NE @ 0.7 miles ]

Sample ID: 413646 Sample Dates: 6/1/2016 - 6/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA BaLa-140 <3.39E+01 0.00E+00 3.39E+01 Be-7 7.69E+02 2.04E+02 2.02E+02 K-40 3.19E+03 5.95E+02 4.46E+02 Sample ID: 417176 Sample Dates: 7/4/2016 - 7/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.66E+01 0.00E+00 1.66E+01 Co-58 <2.12E+01 0.00E+00 2.12E+01 Fe-59 <4.11E+01 0.00E+00 4.11E+01 Co-60 <1.35E+01 0.00E+00 1.35E+01 Zn-65 <5.34E+01 0.00E+00 5.34E+01 Zr-95 <2.89E+01 0.00E+00 2.89E+01 Nb-95 <2.34E+01 0.00E+00 2.34E+01 I-131 <2.61E+01 0.00E+00 2.61E+01 Cs-134 <2.76E+01 0.00E+00 2.76E+01 Cs-137 <1.94E+01 0.00E+00 1.94E+01 BaLa-140 <1.89E+01 0.00E+00 1.89E+01 Be-7 7.79E+02 2.09E+02 2.15E+02 K-40 2.87E+03 5.35E+02 2.93E+02 Sample ID: 419273 Sample Dates: 8/1/2016 - 8/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.02E+01 0.00E+00 2.02E+01 Co-58 <2.10E+01 0.00E+00 2.10E+01 Fe-59 <4.37E+01 0.00E+00 4.37E+01 Co-60 <2.11E+01 0.00E+00 2.11E+01 Zn-65 <5.12E+01 0.00E+00 5.12E+01 Zr-95 <3.31E+01 0.00E+00 3.31E+01 Nb-95 <2.12E+01 0.00E+00 2.12E+01 I-131 <2.11E+01 0.00E+00 2.11E+01 Cs-134 <1.63E+01 0.00E+00 1.63E+01 Cs-137 <1.96E+01 0.00E+00 1.96E+01 BaLa-140 <1.71E+01 0.00E+00 1.71E+01 Be-7 1.09E+03 2.39E+02 2.22E+02 K-40 3.02E+03 5.48E+02 3.34E+02 Sample ID: 423134 Sample Dates: 9/1/2016 - 9/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.99E+01 0.00E+00 1.99E+01 Co-58 <2.63E+01 0.00E+00 2.63E+01 Fe-59 <4.47E+01 0.00E+00 4.47E+01 Co-60 <2.21E+01 0.00E+00 2.21E+01 Zn-65 <5.26E+01 0.00E+00 5.26E+01 Zr-95 <2.68E+01 0.00E+00 2.68E+01 Nb-95 <1.87E+01 0.00E+00 1.87E+01 I-131 <4.49E+01 0.00E+00 4.49E+01 Cs-134 <2.21E+01 0.00E+00 2.21E+01 Cs-137 <1.74E+01 0.00E+00 1.74E+01 BaLa-140 <4.46E+01 0.00E+00 4.46E+01 Be-7 1.22E+03 2.77E+02 2.94E+02 K-40 2.42E+03 4.57E+02 2.73E+02 Sample ID: 426194 Sample Dates: 10/3/2016 - 10/3/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.81E+01 0.00E+00 1.81E+01 Co-58 <1.94E+01 0.00E+00 1.94E+01 Fe-59 <4.12E+01 0.00E+00 4.12E+01 Co-60 <1.48E+01 0.00E+00 1.48E+01 Zn-65 <4.60E+01 0.00E+00 4.60E+01 Zr-95 <3.13E+01 0.00E+00 3.13E+01 Nb-95 <1.24E+01 0.00E+00 1.24E+01 I-131 <1.67E+01 0.00E+00 1.67E+01 Cs-134 <2.33E+01 0.00E+00 2.33E+01 Cs-137 <1.76E+01 0.00E+00 1.76E+01 BaLa-140 <2.48E+01 0.00E+00 2.48E+01 Be-7 1.62E+03 3.05E+02 2.33E+02 K-40 2.97E+03 5.67E+02 3.19E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 169 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 800 Sample Point 800 [ INDICATOR - NE @ 0.7 miles ]

Sample ID: 428558 Sample Dates: 11/1/2016 - 11/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.31E+01 0.00E+00 2.31E+01 Co-58 <2.30E+01 0.00E+00 2.30E+01 Fe-59 <6.19E+01 0.00E+00 6.19E+01 Co-60 <2.56E+01 0.00E+00 2.56E+01 Zn-65 <6.90E+01 0.00E+00 6.90E+01 Zr-95 <3.39E+01 0.00E+00 3.39E+01 Nb-95 <2.75E+01 0.00E+00 2.75E+01 I-131 <2.36E+01 0.00E+00 2.36E+01 Cs-134 <3.33E+01 0.00E+00 3.33E+01 Cs-137 <2.65E+01 0.00E+00 2.65E+01 BaLa-140 <2.94E+01 0.00E+00 2.94E+01 Be-7 1.14E+03 2.83E+02 2.77E+02 K-40 2.19E+03 5.08E+02 2.86E+02 Sample ID: 431206 Sample Dates: 12/1/2016 - 12/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.08E+01 0.00E+00 2.08E+01 Co-58 <1.91E+01 0.00E+00 1.91E+01 Fe-59 <4.49E+01 0.00E+00 4.49E+01 Co-60 <2.03E+01 0.00E+00 2.03E+01 Zn-65 <5.55E+01 0.00E+00 5.55E+01 Zr-95 <3.09E+01 0.00E+00 3.09E+01 Nb-95 <2.30E+01 0.00E+00 2.30E+01 I-131 <2.52E+01 0.00E+00 2.52E+01 Cs-134 <1.76E+01 0.00E+00 1.76E+01 Cs-137 <2.37E+01 0.00E+00 2.37E+01 BaLa-140 <8.84E+00 0.00E+00 8.84E+00 Be-7 9.05E+02 2.50E+02 2.84E+02 K-40 2.82E+03 5.34E+02 2.91E+02 Sample Point 801 [ INDICATOR - SW @ 0.8 miles ]

Sample ID: 399451 Sample Dates: 1/5/2016 - 1/5/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.31E+01 0.00E+00 2.31E+01 Co-58 <1.72E+01 0.00E+00 1.72E+01 Fe-59 <2.25E+01 0.00E+00 2.25E+01 Co-60 <1.71E+01 0.00E+00 1.71E+01 Zn-65 <6.10E+01 0.00E+00 6.10E+01 Zr-95 <3.22E+01 0.00E+00 3.22E+01 Nb-95 <2.10E+01 0.00E+00 2.10E+01 I-131 <2.40E+01 0.00E+00 2.40E+01 Cs-134 <2.14E+01 0.00E+00 2.14E+01 Cs-137 <1.95E+01 0.00E+00 1.95E+01 BaLa-140 <2.83E+01 0.00E+00 2.83E+01 Be-7 2.85E+03 4.20E+02 2.39E+02 K-40 1.82E+03 4.32E+02 3.41E+02 Sample ID: 401509 Sample Dates: 2/1/2016 - 2/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.48E+01 0.00E+00 1.48E+01 Co-58 <1.22E+01 0.00E+00 1.22E+01 Fe-59 <3.14E+01 0.00E+00 3.14E+01 Co-60 <2.32E+01 0.00E+00 2.32E+01 Zn-65 <3.77E+01 0.00E+00 3.77E+01 Zr-95 <3.42E+01 0.00E+00 3.42E+01 Nb-95 <2.16E+01 0.00E+00 2.16E+01 I-131 <1.89E+01 0.00E+00 1.89E+01 Cs-134 <2.47E+01 0.00E+00 2.47E+01 Cs-137 <2.19E+01 0.00E+00 2.19E+01 BaLa-140 <1.70E+01 0.00E+00 1.70E+01 Be-7 3.92E+03 4.95E+02 2.31E+02 K-40 1.94E+03 4.49E+02 4.06E+02 Sample ID: 405296 Sample Dates: 3/1/2016 - 3/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.79E+01 0.00E+00 1.79E+01 Co-58 <9.29E+00 0.00E+00 9.29E+00 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 170 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 801 Sample Point 801 [ INDICATOR - SW @ 0.8 miles ]

Sample ID: 405296 Sample Dates: 3/1/2016 - 3/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Fe-59 <2.69E+01 0.00E+00 2.69E+01 Co-60 <2.00E+01 0.00E+00 2.00E+01 Zn-65 <4.85E+01 0.00E+00 4.85E+01 Zr-95 <3.47E+01 0.00E+00 3.47E+01 Nb-95 <2.13E+01 0.00E+00 2.13E+01 I-131 <1.81E+01 0.00E+00 1.81E+01 Cs-134 <1.71E+01 0.00E+00 1.71E+01 Cs-137 <1.32E+01 0.00E+00 1.32E+01 BaLa-140 <2.63E+01 0.00E+00 2.63E+01 Be-7 4.00E+03 5.20E+02 2.70E+02 K-40 2.27E+03 4.76E+02 2.95E+02 Sample ID: 408369 Sample Dates: 4/4/2016 - 4/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.10E+01 0.00E+00 2.10E+01 Co-58 <2.36E+01 0.00E+00 2.36E+01 Fe-59 <2.66E+01 0.00E+00 2.66E+01 Co-60 <2.20E+01 0.00E+00 2.20E+01 Zn-65 <4.19E+01 0.00E+00 4.19E+01 Zr-95 <3.62E+01 0.00E+00 3.62E+01 Nb-95 <2.37E+01 0.00E+00 2.37E+01 I-131 <1.78E+01 0.00E+00 1.78E+01 Cs-134 <2.36E+01 0.00E+00 2.36E+01 Cs-137 <1.84E+01 0.00E+00 1.84E+01 BaLa-140 <2.90E+01 0.00E+00 2.90E+01 Be-7 3.11E+03 4.42E+02 2.87E+02 K-40 2.32E+03 4.93E+02 3.75E+02 Sample ID: 411582 Sample Dates: 5/2/2016 - 5/2/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.61E+01 0.00E+00 1.61E+01 Co-58 <1.66E+01 0.00E+00 1.66E+01 Fe-59 <3.03E+01 0.00E+00 3.03E+01 Co-60 <1.55E+01 0.00E+00 1.55E+01 Zn-65 <2.95E+01 0.00E+00 2.95E+01 Zr-95 <2.55E+01 0.00E+00 2.55E+01 Nb-95 <1.49E+01 0.00E+00 1.49E+01 I-131 <1.66E+01 0.00E+00 1.66E+01 Cs-134 <1.88E+01 0.00E+00 1.88E+01 Cs-137 <1.73E+01 0.00E+00 1.73E+01 BaLa-140 <2.06E+01 0.00E+00 2.06E+01 Be-7 5.34E+02 1.38E+02 1.32E+02 K-40 3.14E+03 5.00E+02 2.77E+02 Sample ID: 413647 Sample Dates: 6/1/2016 - 6/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.33E+01 0.00E+00 2.33E+01 Co-58 <1.57E+01 0.00E+00 1.57E+01 Fe-59 <3.98E+01 0.00E+00 3.98E+01 Co-60 <2.95E+01 0.00E+00 2.95E+01 Zn-65 <4.28E+01 0.00E+00 4.28E+01 Zr-95 <4.28E+01 0.00E+00 4.28E+01 Nb-95 <1.96E+01 0.00E+00 1.96E+01 I-131 <2.10E+01 0.00E+00 2.10E+01 Cs-134 <1.33E+01 0.00E+00 1.33E+01 Cs-137 <1.63E+01 0.00E+00 1.63E+01 BaLa-140 <2.69E+01 0.00E+00 2.69E+01 Be-7 6.28E+02 2.18E+02 2.75E+02 K-40 2.90E+03 5.55E+02 3.71E+02 Sample ID: 417177 Sample Dates: 7/4/2016 - 7/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.20E+01 0.00E+00 2.20E+01 Co-58 <2.12E+01 0.00E+00 2.12E+01 Fe-59 <3.67E+01 0.00E+00 3.67E+01 Co-60 <2.12E+01 0.00E+00 2.12E+01 Zn-65 <4.62E+01 0.00E+00 4.62E+01 Zr-95 <2.54E+01 0.00E+00 2.54E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 171 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 801 Sample Point 801 [ INDICATOR - SW @ 0.8 miles ]

Sample ID: 417177 Sample Dates: 7/4/2016 - 7/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Nb-95 <1.79E+01 0.00E+00 1.79E+01 I-131 <2.50E+01 0.00E+00 2.50E+01 Cs-134 <2.15E+01 0.00E+00 2.15E+01 Cs-137 <2.21E+01 0.00E+00 2.21E+01 BaLa-140 <2.68E+01 0.00E+00 2.68E+01 Be-7 5.71E+02 2.01E+02 2.55E+02 K-40 2.94E+03 5.27E+02 2.41E+02 Sample ID: 419274 Sample Dates: 8/1/2016 - 8/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.35E+01 0.00E+00 2.35E+01 Co-58 <2.49E+01 0.00E+00 2.49E+01 Fe-59 <4.35E+01 0.00E+00 4.35E+01 Co-60 <2.11E+01 0.00E+00 2.11E+01 Zn-65 <4.59E+01 0.00E+00 4.59E+01 Zr-95 <3.30E+01 0.00E+00 3.30E+01 Nb-95 <1.85E+01 0.00E+00 1.85E+01 I-131 <2.16E+01 0.00E+00 2.16E+01 Cs-134 <2.55E+01 0.00E+00 2.55E+01 Cs-137 <1.65E+01 0.00E+00 1.65E+01 BaLa-140 <2.16E+01 0.00E+00 2.16E+01 Be-7 1.57E+03 2.85E+02 2.20E+02 K-40 2.80E+03 5.11E+02 2.37E+02 Sample ID: 423135 Sample Dates: 9/1/2016 - 9/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.11E+01 0.00E+00 2.11E+01 Co-58 <1.77E+01 0.00E+00 1.77E+01 Fe-59 <4.27E+01 0.00E+00 4.27E+01 Co-60 <2.18E+01 0.00E+00 2.18E+01 Zn-65 <5.86E+01 0.00E+00 5.86E+01 Zr-95 <3.76E+01 0.00E+00 3.76E+01 Nb-95 <2.51E+01 0.00E+00 2.51E+01 I-131 <4.60E+01 0.00E+00 4.60E+01 Cs-134 <2.55E+01 0.00E+00 2.55E+01 Cs-137 <2.35E+01 0.00E+00 2.35E+01 BaLa-140 <2.91E+01 0.00E+00 2.91E+01 Be-7 1.54E+03 3.18E+02 3.01E+02 K-40 2.69E+03 5.26E+02 3.58E+02 Sample ID: 426195 Sample Dates: 10/3/2016 - 10/3/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.01E+01 0.00E+00 2.01E+01 Co-58 <1.28E+01 0.00E+00 1.28E+01 Fe-59 <5.31E+01 0.00E+00 5.31E+01 Co-60 <2.35E+01 0.00E+00 2.35E+01 Zn-65 <4.09E+01 0.00E+00 4.09E+01 Zr-95 <3.66E+01 0.00E+00 3.66E+01 Nb-95 <2.05E+01 0.00E+00 2.05E+01 I-131 <1.98E+01 0.00E+00 1.98E+01 Cs-134 <2.72E+01 0.00E+00 2.72E+01 Cs-137 <2.16E+01 0.00E+00 2.16E+01 BaLa-140 <2.79E+01 0.00E+00 2.79E+01 Be-7 1.32E+03 2.68E+02 2.22E+02 K-40 2.54E+03 5.16E+02 3.10E+02 Sample ID: 428559 Sample Dates: 11/1/2016 - 11/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.00E+01 0.00E+00 2.00E+01 Co-58 <2.09E+01 0.00E+00 2.09E+01 Fe-59 <4.30E+01 0.00E+00 4.30E+01 Co-60 <1.70E+01 0.00E+00 1.70E+01 Zn-65 <4.49E+01 0.00E+00 4.49E+01 Zr-95 <2.34E+01 0.00E+00 2.34E+01 Nb-95 <1.93E+01 0.00E+00 1.93E+01 I-131 <2.00E+01 0.00E+00 2.00E+01 Cs-134 <2.84E+01 0.00E+00 2.84E+01 Cs-137 <1.72E+01 0.00E+00 1.72E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 172 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 801 Sample Point 801 [ INDICATOR - SW @ 0.8 miles ]

Sample ID: 428559 Sample Dates: 11/1/2016 - 11/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA BaLa-140 <2.26E+01 0.00E+00 2.26E+01 Be-7 1.24E+03 2.61E+02 2.34E+02 K-40 1.66E+03 3.88E+02 2.20E+02 Sample ID: 431207 Sample Dates: 12/1/2016 - 12/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <3.00E+01 0.00E+00 3.00E+01 Co-58 <2.00E+01 0.00E+00 2.00E+01 Fe-59 <6.92E+01 0.00E+00 6.92E+01 Co-60 <3.12E+01 0.00E+00 3.12E+01 Zn-65 <4.92E+01 0.00E+00 4.92E+01 Zr-95 <5.64E+01 0.00E+00 5.64E+01 Nb-95 <3.16E+01 0.00E+00 3.16E+01 I-131 <3.91E+01 0.00E+00 3.91E+01 Cs-134 <2.41E+01 0.00E+00 2.41E+01 Cs-137 <3.01E+01 0.00E+00 3.01E+01 BaLa-140 <3.31E+01 0.00E+00 3.31E+01 Be-7 1.38E+03 3.49E+02 3.63E+02 K-40 1.94E+03 5.42E+02 5.00E+02 Sample Point 802 [ CONTROL - -- @ 10.1 miles ]

Sample ID: 399452 Sample Dates: 1/5/2016 - 1/5/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.50E+01 0.00E+00 2.50E+01 Co-58 <1.22E+01 0.00E+00 1.22E+01 Fe-59 <4.04E+01 0.00E+00 4.04E+01 Co-60 <2.22E+01 0.00E+00 2.22E+01 Zn-65 <4.90E+01 0.00E+00 4.90E+01 Zr-95 <3.99E+01 0.00E+00 3.99E+01 Nb-95 <2.50E+01 0.00E+00 2.50E+01 I-131 <3.50E+01 0.00E+00 3.50E+01 Cs-134 <2.60E+01 0.00E+00 2.60E+01 Cs-137 <2.90E+01 0.00E+00 2.90E+01 BaLa-140 <3.66E+01 0.00E+00 3.66E+01 Be-7 4.88E+03 6.01E+02 2.67E+02 K-40 1.53E+03 3.73E+02 2.21E+02 Sample ID: 401510 Sample Dates: 2/1/2016 - 2/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.87E+01 0.00E+00 1.87E+01 Co-58 <1.88E+01 0.00E+00 1.88E+01 Fe-59 <3.09E+01 0.00E+00 3.09E+01 Co-60 <3.15E+01 0.00E+00 3.15E+01 Zn-65 <3.80E+01 0.00E+00 3.80E+01 Zr-95 <3.93E+01 0.00E+00 3.93E+01 Nb-95 <2.22E+01 0.00E+00 2.22E+01 I-131 <2.36E+01 0.00E+00 2.36E+01 Cs-134 <2.33E+01 0.00E+00 2.33E+01 Cs-137 <2.90E+01 0.00E+00 2.90E+01 BaLa-140 <6.83E+00 0.00E+00 6.83E+00 Be-7 5.63E+03 6.57E+02 2.58E+02 K-40 1.99E+03 4.84E+02 4.69E+02 Sample ID: 405297 Sample Dates: 3/1/2016 - 3/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.99E+01 0.00E+00 1.99E+01 Co-58 <2.08E+01 0.00E+00 2.08E+01 Fe-59 <3.73E+01 0.00E+00 3.73E+01 Co-60 <2.57E+01 0.00E+00 2.57E+01 Zn-65 <3.81E+01 0.00E+00 3.81E+01 Zr-95 <3.92E+01 0.00E+00 3.92E+01 Nb-95 <1.92E+01 0.00E+00 1.92E+01 I-131 <2.17E+01 0.00E+00 2.17E+01 Cs-134 <2.65E+01 0.00E+00 2.65E+01 Cs-137 <2.02E+01 0.00E+00 2.02E+01 BaLa-140 <2.58E+01 0.00E+00 2.58E+01 Be-7 1.58E+03 2.97E+02 2.49E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 173 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 802 Sample Point 802 [ CONTROL - -- @ 10.1 miles ]

Sample ID: 405297 Sample Dates: 3/1/2016 - 3/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA K-40 1.84E+03 4.27E+02 3.15E+02 Sample ID: 408370 Sample Dates: 4/4/2016 - 4/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.71E+01 0.00E+00 1.71E+01 Co-58 <2.23E+01 0.00E+00 2.23E+01 Fe-59 <3.89E+01 0.00E+00 3.89E+01 Co-60 <2.49E+01 0.00E+00 2.49E+01 Zn-65 <3.58E+01 0.00E+00 3.58E+01 Zr-95 <3.38E+01 0.00E+00 3.38E+01 Nb-95 <1.81E+01 0.00E+00 1.81E+01 I-131 <1.80E+01 0.00E+00 1.80E+01 Cs-134 <1.30E+01 0.00E+00 1.30E+01 Cs-137 <1.90E+01 0.00E+00 1.90E+01 BaLa-140 <5.64E+00 0.00E+00 5.64E+00 Be-7 3.37E+03 4.37E+02 1.85E+02 K-40 2.27E+03 4.20E+02 4.27E+01 Sample ID: 411583 Sample Dates: 5/2/2016 - 5/2/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.81E+01 0.00E+00 1.81E+01 Co-58 <1.27E+01 0.00E+00 1.27E+01 Fe-59 <2.89E+01 0.00E+00 2.89E+01 Co-60 <1.96E+01 0.00E+00 1.96E+01 Zn-65 <3.43E+01 0.00E+00 3.43E+01 Zr-95 <2.71E+01 0.00E+00 2.71E+01 Nb-95 <1.58E+01 0.00E+00 1.58E+01 I-131 <1.80E+01 0.00E+00 1.80E+01 Cs-134 <1.43E+01 0.00E+00 1.43E+01 Cs-137 <1.86E+01 0.00E+00 1.86E+01 BaLa-140 <2.08E+01 0.00E+00 2.08E+01 Be-7 8.99E+02 1.98E+02 2.01E+02 K-40 2.80E+03 4.51E+02 1.64E+02 Sample ID: 413648 Sample Dates: 6/1/2016 - 6/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.83E+01 0.00E+00 1.83E+01 Co-58 <1.87E+01 0.00E+00 1.87E+01 Fe-59 <3.37E+01 0.00E+00 3.37E+01 Co-60 <2.06E+01 0.00E+00 2.06E+01 Zn-65 <4.28E+01 0.00E+00 4.28E+01 Zr-95 <2.98E+01 0.00E+00 2.98E+01 Nb-95 <2.07E+01 0.00E+00 2.07E+01 I-131 <2.06E+01 0.00E+00 2.06E+01 Cs-134 <1.48E+01 0.00E+00 1.48E+01 Cs-137 <2.13E+01 0.00E+00 2.13E+01 BaLa-140 <6.18E+00 0.00E+00 6.18E+00 Be-7 5.03E+02 1.58E+02 1.82E+02 K-40 2.37E+03 4.40E+02 2.72E+02 Sample ID: 417178 Sample Dates: 7/4/2016 - 7/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.30E+01 0.00E+00 2.30E+01 Co-58 <2.42E+01 0.00E+00 2.42E+01 Fe-59 <5.06E+01 0.00E+00 5.06E+01 Co-60 <2.15E+01 0.00E+00 2.15E+01 Zn-65 <4.94E+01 0.00E+00 4.94E+01 Zr-95 <3.82E+01 0.00E+00 3.82E+01 Nb-95 <2.27E+01 0.00E+00 2.27E+01 I-131 <2.54E+01 0.00E+00 2.54E+01 Cs-134 <2.80E+01 0.00E+00 2.80E+01 Cs-137 <2.92E+01 0.00E+00 2.92E+01 BaLa-140 <7.66E+00 0.00E+00 7.66E+00 Be-7 1.05E+03 2.63E+02 2.80E+02 K-40 1.97E+03 5.15E+02 5.28E+02 Sample ID: 419275 Sample Dates: 8/1/2016 - 8/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.97E+01 0.00E+00 1.97E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 174 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 802 Sample Point 802 [ CONTROL - -- @ 10.1 miles ]

Sample ID: 419275 Sample Dates: 8/1/2016 - 8/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Co-58 <1.36E+01 0.00E+00 1.36E+01 Fe-59 <3.57E+01 0.00E+00 3.57E+01 Co-60 <1.83E+01 0.00E+00 1.83E+01 Zn-65 <4.62E+01 0.00E+00 4.62E+01 Zr-95 <2.54E+01 0.00E+00 2.54E+01 Nb-95 <1.76E+01 0.00E+00 1.76E+01 I-131 <1.72E+01 0.00E+00 1.72E+01 Cs-134 <2.12E+01 0.00E+00 2.12E+01 Cs-137 <2.22E+01 0.00E+00 2.22E+01 BaLa-140 <1.89E+01 0.00E+00 1.89E+01 Be-7 1.44E+03 2.60E+02 2.12E+02 K-40 2.28E+03 4.26E+02 1.82E+02 Sample ID: 423136 Sample Dates: 9/1/2016 - 9/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.02E+01 0.00E+00 2.02E+01 Co-58 <2.16E+01 0.00E+00 2.16E+01 Fe-59 <4.92E+01 0.00E+00 4.92E+01 Co-60 <2.18E+01 0.00E+00 2.18E+01 Zn-65 <5.15E+01 0.00E+00 5.15E+01 Zr-95 <3.97E+01 0.00E+00 3.97E+01 Nb-95 <1.90E+01 0.00E+00 1.90E+01 I-131 <4.65E+01 0.00E+00 4.65E+01 Cs-134 <1.85E+01 0.00E+00 1.85E+01 Cs-137 <2.44E+01 0.00E+00 2.44E+01 BaLa-140 <4.80E+01 0.00E+00 4.80E+01 Be-7 1.06E+03 2.57E+02 2.54E+02 K-40 2.26E+03 4.85E+02 3.73E+02 Sample ID: 426196 Sample Dates: 10/3/2016 - 10/3/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.06E+01 0.00E+00 2.06E+01 Co-58 <2.16E+01 0.00E+00 2.16E+01 Fe-59 <3.57E+01 0.00E+00 3.57E+01 Co-60 <2.28E+01 0.00E+00 2.28E+01 Zn-65 <4.67E+01 0.00E+00 4.67E+01 Zr-95 <3.74E+01 0.00E+00 3.74E+01 Nb-95 <1.77E+01 0.00E+00 1.77E+01 I-131 <1.96E+01 0.00E+00 1.96E+01 Cs-134 <2.75E+01 0.00E+00 2.75E+01 Cs-137 <2.83E+01 0.00E+00 2.83E+01 BaLa-140 <1.87E+01 0.00E+00 1.87E+01 Be-7 1.59E+03 3.06E+02 2.68E+02 K-40 1.74E+03 4.22E+02 3.15E+02 Sample ID: 428560 Sample Dates: 11/1/2016 - 11/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.65E+01 0.00E+00 2.65E+01 Co-58 <2.16E+01 0.00E+00 2.16E+01 Fe-59 <4.66E+01 0.00E+00 4.66E+01 Co-60 <2.37E+01 0.00E+00 2.37E+01 Zn-65 <4.52E+01 0.00E+00 4.52E+01 Zr-95 <3.92E+01 0.00E+00 3.92E+01 Nb-95 <2.57E+01 0.00E+00 2.57E+01 I-131 <2.34E+01 0.00E+00 2.34E+01 Cs-134 <2.43E+01 0.00E+00 2.43E+01 Cs-137 <2.37E+01 0.00E+00 2.37E+01 BaLa-140 <7.15E+00 0.00E+00 7.15E+00 Be-7 3.18E+03 4.46E+02 2.19E+02 K-40 2.17E+03 4.85E+02 3.57E+02 Sample ID: 431209 Sample Dates: 12/1/2016 - 12/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.49E+01 0.00E+00 1.49E+01 Co-58 <2.34E+01 0.00E+00 2.34E+01 Fe-59 <6.18E+01 0.00E+00 6.18E+01 Co-60 <3.02E+01 0.00E+00 3.02E+01 Zn-65 <4.90E+01 0.00E+00 4.90E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 175 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 802 Sample Point 802 [ CONTROL - -- @ 10.1 miles ]

Sample ID: 431209 Sample Dates: 12/1/2016 - 12/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Zr-95 <3.79E+01 0.00E+00 3.79E+01 Nb-95 <3.51E+01 0.00E+00 3.51E+01 I-131 <4.24E+01 0.00E+00 4.24E+01 Cs-134 <2.98E+01 0.00E+00 2.98E+01 Cs-137 <2.99E+01 0.00E+00 2.99E+01 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 1.95E+03 4.05E+02 4.05E+02 K-40 1.62E+03 4.22E+02 2.39E+02 Sample Point 803 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 399453 Sample Dates: 1/5/2016 - 1/5/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.48E+01 0.00E+00 1.48E+01 Co-58 <2.35E+01 0.00E+00 2.35E+01 Fe-59 <3.96E+01 0.00E+00 3.96E+01 Co-60 <2.38E+01 0.00E+00 2.38E+01 Zn-65 <4.19E+01 0.00E+00 4.19E+01 Zr-95 <4.45E+01 0.00E+00 4.45E+01 Nb-95 <2.26E+01 0.00E+00 2.26E+01 I-131 <2.76E+01 0.00E+00 2.76E+01 Cs-134 <2.01E+01 0.00E+00 2.01E+01 Cs-137 <2.39E+01 0.00E+00 2.39E+01 BaLa-140 <3.04E+01 0.00E+00 3.04E+01 Be-7 3.79E+03 5.23E+02 2.99E+02 K-40 1.94E+03 4.22E+02 5.37E+01 Sample ID: 401511 Sample Dates: 2/1/2016 - 2/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.54E+01 0.00E+00 2.54E+01 Co-58 <1.57E+01 0.00E+00 1.57E+01 Fe-59 <4.24E+01 0.00E+00 4.24E+01 Co-60 <2.04E+01 0.00E+00 2.04E+01 Zn-65 <4.67E+01 0.00E+00 4.67E+01 Zr-95 <3.20E+01 0.00E+00 3.20E+01 Nb-95 <2.50E+01 0.00E+00 2.50E+01 I-131 <2.24E+01 0.00E+00 2.24E+01 Cs-134 <2.32E+01 0.00E+00 2.32E+01 Cs-137 <1.90E+01 0.00E+00 1.90E+01 BaLa-140 <7.17E+00 0.00E+00 7.17E+00 Be-7 2.93E+03 4.29E+02 2.53E+02 K-40 2.39E+03 4.77E+02 2.09E+02 Sample ID: 405298 Sample Dates: 3/1/2016 - 3/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.72E+01 0.00E+00 1.72E+01 Fe-59 <4.77E+01 0.00E+00 4.77E+01 Co-60 <2.32E+01 0.00E+00 2.32E+01 Zn-65 <4.73E+01 0.00E+00 4.73E+01 Zr-95 <3.20E+01 0.00E+00 3.20E+01 Nb-95 <2.39E+01 0.00E+00 2.39E+01 I-131 <1.74E+01 0.00E+00 1.74E+01 Cs-134 <2.98E+01 0.00E+00 2.98E+01 Cs-137 <2.03E+01 0.00E+00 2.03E+01 BaLa-140 <3.07E+01 0.00E+00 3.07E+01 Be-7 4.86E+03 6.13E+02 2.71E+02 K-40 2.49E+03 5.18E+02 3.50E+02 Sample ID: 408371 Sample Dates: 4/4/2016 - 4/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.24E+01 0.00E+00 1.24E+01 Co-58 <1.65E+01 0.00E+00 1.65E+01 Fe-59 <2.83E+01 0.00E+00 2.83E+01 Co-60 <1.82E+01 0.00E+00 1.82E+01 Zn-65 <2.94E+01 0.00E+00 2.94E+01 Zr-95 <2.65E+01 0.00E+00 2.65E+01 Nb-95 <1.71E+01 0.00E+00 1.71E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 176 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 803 Sample Point 803 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 408371 Sample Dates: 4/4/2016 - 4/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA I-131 <1.70E+01 0.00E+00 1.70E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <1.49E+01 0.00E+00 1.49E+01 BaLa-140 <1.58E+01 0.00E+00 1.58E+01 Be-7 2.51E+03 3.40E+02 2.00E+02 K-40 2.65E+03 4.36E+02 1.69E+02 Sample ID: 411584 Sample Dates: 5/2/2016 - 5/2/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.73E+01 0.00E+00 1.73E+01 Co-58 <1.45E+01 0.00E+00 1.45E+01 Fe-59 <3.48E+01 0.00E+00 3.48E+01 Co-60 <1.44E+01 0.00E+00 1.44E+01 Zn-65 <4.05E+01 0.00E+00 4.05E+01 Zr-95 <2.64E+01 0.00E+00 2.64E+01 Nb-95 <1.73E+01 0.00E+00 1.73E+01 I-131 <1.53E+01 0.00E+00 1.53E+01 Cs-134 <2.07E+01 0.00E+00 2.07E+01 Cs-137 <1.48E+01 0.00E+00 1.48E+01 BaLa-140 <2.32E+01 0.00E+00 2.32E+01 Be-7 6.20E+02 1.52E+02 1.45E+02 K-40 2.89E+03 4.69E+02 2.21E+02 Sample ID: 413649 Sample Dates: 6/1/2016 - 6/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.86E+01 0.00E+00 1.86E+01 Co-58 <1.42E+01 0.00E+00 1.42E+01 Fe-59 <4.08E+01 0.00E+00 4.08E+01 Co-60 <1.72E+01 0.00E+00 1.72E+01 Zn-65 <3.77E+01 0.00E+00 3.77E+01 Zr-95 <2.78E+01 0.00E+00 2.78E+01 Nb-95 <1.32E+01 0.00E+00 1.32E+01 I-131 <1.90E+01 0.00E+00 1.90E+01 Cs-134 <1.93E+01 0.00E+00 1.93E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 BaLa-140 <1.64E+01 0.00E+00 1.64E+01 Be-7 8.09E+02 1.90E+02 1.87E+02 K-40 2.95E+03 5.26E+02 4.18E+02 Sample ID: 417179 Sample Dates: 7/4/2016 - 7/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.31E+01 0.00E+00 2.31E+01 Co-58 <2.41E+01 0.00E+00 2.41E+01 Fe-59 <4.15E+01 0.00E+00 4.15E+01 Co-60 <2.77E+01 0.00E+00 2.77E+01 Zn-65 <4.85E+01 0.00E+00 4.85E+01 Zr-95 <3.52E+01 0.00E+00 3.52E+01 Nb-95 <2.19E+01 0.00E+00 2.19E+01 I-131 <2.60E+01 0.00E+00 2.60E+01 Cs-134 <3.04E+01 0.00E+00 3.04E+01 Cs-137 <2.48E+01 0.00E+00 2.48E+01 BaLa-140 <1.92E+01 0.00E+00 1.92E+01 Be-7 5.93E+02 2.18E+02 2.86E+02 K-40 2.73E+03 5.09E+02 2.06E+02 Sample ID: 419276 Sample Dates: 8/1/2016 - 8/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.64E+01 0.00E+00 1.64E+01 Co-58 <1.97E+01 0.00E+00 1.97E+01 Fe-59 <5.14E+01 0.00E+00 5.14E+01 Co-60 <2.17E+01 0.00E+00 2.17E+01 Zn-65 <4.46E+01 0.00E+00 4.46E+01 Zr-95 <3.19E+01 0.00E+00 3.19E+01 Nb-95 <2.10E+01 0.00E+00 2.10E+01 I-131 <2.36E+01 0.00E+00 2.36E+01 Cs-134 <3.14E+01 0.00E+00 3.14E+01 Cs-137 <2.28E+01 0.00E+00 2.28E+01 BaLa-140 <3.15E+01 0.00E+00 3.15E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 177 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 803 Sample Point 803 [ INDICATOR - SSE @ 0.6 miles ]

Sample ID: 419276 Sample Dates: 8/1/2016 - 8/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Be-7 1.75E+03 3.09E+02 2.42E+02 K-40 3.21E+03 5.57E+02 2.22E+02 Sample ID: 423137 Sample Dates: 9/1/2016 - 9/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.49E+01 0.00E+00 1.49E+01 Co-58 <2.21E+01 0.00E+00 2.21E+01 Fe-59 <4.50E+01 0.00E+00 4.50E+01 Co-60 <2.33E+01 0.00E+00 2.33E+01 Zn-65 <5.02E+01 0.00E+00 5.02E+01 Zr-95 <3.68E+01 0.00E+00 3.68E+01 Nb-95 <2.75E+01 0.00E+00 2.75E+01 I-131 <4.76E+01 0.00E+00 4.76E+01 Cs-134 <2.40E+01 0.00E+00 2.40E+01 Cs-137 <1.77E+01 0.00E+00 1.77E+01 BaLa-140 <4.68E+01 0.00E+00 4.68E+01 Be-7 1.56E+03 3.04E+02 2.52E+02 K-40 2.86E+03 5.27E+02 2.93E+02 Sample ID: 426197 Sample Dates: 10/3/2016 - 10/3/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.65E+01 0.00E+00 1.65E+01 Co-58 <1.65E+01 0.00E+00 1.65E+01 Fe-59 <4.97E+01 0.00E+00 4.97E+01 Co-60 <2.40E+01 0.00E+00 2.40E+01 Zn-65 <4.19E+01 0.00E+00 4.19E+01 Zr-95 <3.12E+01 0.00E+00 3.12E+01 Nb-95 <2.32E+01 0.00E+00 2.32E+01 I-131 <2.37E+01 0.00E+00 2.37E+01 Cs-134 <1.86E+01 0.00E+00 1.86E+01 Cs-137 <2.00E+01 0.00E+00 2.00E+01 BaLa-140 <1.96E+01 0.00E+00 1.96E+01 Be-7 2.24E+03 3.58E+02 2.18E+02 K-40 2.73E+03 5.75E+02 4.70E+02 Sample ID: 428561 Sample Dates: 11/1/2016 - 11/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.61E+01 0.00E+00 1.61E+01 Co-58 <2.12E+01 0.00E+00 2.12E+01 Fe-59 <4.31E+01 0.00E+00 4.31E+01 Co-60 <2.10E+01 0.00E+00 2.10E+01 Zn-65 <4.47E+01 0.00E+00 4.47E+01 Zr-95 <3.27E+01 0.00E+00 3.27E+01 Nb-95 <1.83E+01 0.00E+00 1.83E+01 I-131 <1.94E+01 0.00E+00 1.94E+01 Cs-134 <1.98E+01 0.00E+00 1.98E+01 Cs-137 <2.17E+01 0.00E+00 2.17E+01 BaLa-140 <1.92E+01 0.00E+00 1.92E+01 Be-7 2.07E+03 3.52E+02 2.70E+02 K-40 2.97E+03 5.46E+02 2.13E+02 Sample ID: 431210 Sample Dates: 12/1/2016 - 12/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.69E+01 0.00E+00 1.69E+01 Co-58 <2.56E+01 0.00E+00 2.56E+01 Fe-59 <4.61E+01 0.00E+00 4.61E+01 Co-60 <2.26E+01 0.00E+00 2.26E+01 Zn-65 <3.27E+01 0.00E+00 3.27E+01 Zr-95 <3.23E+01 0.00E+00 3.23E+01 Nb-95 <2.00E+01 0.00E+00 2.00E+01 I-131 <2.70E+01 0.00E+00 2.70E+01 Cs-134 <2.11E+01 0.00E+00 2.11E+01 Cs-137 <2.38E+01 0.00E+00 2.38E+01 BaLa-140 <2.21E+01 0.00E+00 2.21E+01 Be-7 1.56E+03 2.95E+02 2.50E+02 K-40 2.22E+03 4.53E+02 2.79E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 178 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 804 Sample Point 804 [ INDICATOR - S @ 0.7 miles ]

Sample ID: 399454 Sample Dates: 1/5/2016 - 1/5/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.81E+01 0.00E+00 1.81E+01 Co-58 <1.26E+01 0.00E+00 1.26E+01 Fe-59 <3.62E+01 0.00E+00 3.62E+01 Co-60 <2.49E+01 0.00E+00 2.49E+01 Zn-65 <3.14E+01 0.00E+00 3.14E+01 Zr-95 <2.88E+01 0.00E+00 2.88E+01 Nb-95 <1.43E+01 0.00E+00 1.43E+01 I-131 <2.48E+01 0.00E+00 2.48E+01 Cs-134 <2.02E+01 0.00E+00 2.02E+01 Cs-137 <1.99E+01 0.00E+00 1.99E+01 BaLa-140 <2.02E+01 0.00E+00 2.02E+01 Be-7 1.87E+03 3.27E+02 2.79E+02 K-40 1.72E+03 3.89E+02 2.61E+02 Sample ID: 401512 Sample Dates: 2/1/2016 - 2/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.98E+01 0.00E+00 1.98E+01 Co-58 <2.11E+01 0.00E+00 2.11E+01 Fe-59 <4.57E+01 0.00E+00 4.57E+01 Co-60 <3.07E+01 0.00E+00 3.07E+01 Zn-65 <3.84E+01 0.00E+00 3.84E+01 Zr-95 <2.26E+01 0.00E+00 2.26E+01 Nb-95 <1.94E+01 0.00E+00 1.94E+01 I-131 <2.03E+01 0.00E+00 2.03E+01 Cs-134 <2.49E+01 0.00E+00 2.49E+01 Cs-137 <3.04E+01 0.00E+00 3.04E+01 BaLa-140 <3.75E+01 0.00E+00 3.75E+01 Be-7 3.40E+03 4.79E+02 2.66E+02 K-40 1.70E+03 4.57E+02 4.23E+02 Sample ID: 405299 Sample Dates: 3/1/2016 - 3/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.94E+01 0.00E+00 1.94E+01 Co-58 <2.12E+01 0.00E+00 2.12E+01 Fe-59 <3.93E+01 0.00E+00 3.93E+01 Co-60 <2.97E+01 0.00E+00 2.97E+01 Zn-65 <4.38E+01 0.00E+00 4.38E+01 Zr-95 <4.10E+01 0.00E+00 4.10E+01 Nb-95 <1.27E+01 0.00E+00 1.27E+01 I-131 <1.99E+01 0.00E+00 1.99E+01 Cs-134 <1.80E+01 0.00E+00 1.80E+01 Cs-137 <2.52E+01 0.00E+00 2.52E+01 BaLa-140 <2.55E+01 0.00E+00 2.55E+01 Be-7 5.22E+03 6.23E+02 2.65E+02 K-40 2.13E+03 4.46E+02 2.53E+02 Sample ID: 408372 Sample Dates: 4/4/2016 - 4/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.31E+01 0.00E+00 1.31E+01 Fe-59 <3.20E+01 0.00E+00 3.20E+01 Co-60 <2.05E+01 0.00E+00 2.05E+01 Zn-65 <4.23E+01 0.00E+00 4.23E+01 Zr-95 <2.74E+01 0.00E+00 2.74E+01 Nb-95 <1.36E+01 0.00E+00 1.36E+01 I-131 <1.93E+01 0.00E+00 1.93E+01 Cs-134 <2.11E+01 0.00E+00 2.11E+01 Cs-137 <2.01E+01 0.00E+00 2.01E+01 BaLa-140 <2.31E+01 0.00E+00 2.31E+01 Be-7 2.12E+03 3.15E+02 2.04E+02 K-40 3.20E+03 5.14E+02 2.30E+02 Sample ID: 411585 Sample Dates: 5/2/2016 - 5/2/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.79E+01 0.00E+00 1.79E+01 Co-58 <1.54E+01 0.00E+00 1.54E+01 Fe-59 <4.23E+01 0.00E+00 4.23E+01 Co-60 <1.61E+01 0.00E+00 1.61E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 179 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 804 Sample Point 804 [ INDICATOR - S @ 0.7 miles ]

Sample ID: 411585 Sample Dates: 5/2/2016 - 5/2/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Zn-65 <3.67E+01 0.00E+00 3.67E+01 Zr-95 <2.13E+01 0.00E+00 2.13E+01 Nb-95 <1.30E+01 0.00E+00 1.30E+01 I-131 <1.67E+01 0.00E+00 1.67E+01 Cs-134 <2.09E+01 0.00E+00 2.09E+01 Cs-137 <1.50E+01 0.00E+00 1.50E+01 BaLa-140 <1.84E+01 0.00E+00 1.84E+01 Be-7 4.08E+02 1.68E+02 2.28E+02 K-40 2.33E+03 4.61E+02 3.62E+02 Sample ID: 413650 Sample Dates: 6/1/2016 - 6/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.43E+01 0.00E+00 1.43E+01 Co-58 <1.79E+01 0.00E+00 1.79E+01 Fe-59 <3.37E+01 0.00E+00 3.37E+01 Co-60 <2.06E+01 0.00E+00 2.06E+01 Zn-65 <3.36E+01 0.00E+00 3.36E+01 Zr-95 <2.53E+01 0.00E+00 2.53E+01 Nb-95 <1.87E+01 0.00E+00 1.87E+01 I-131 <2.46E+01 0.00E+00 2.46E+01 Cs-134 <1.88E+01 0.00E+00 1.88E+01 Cs-137 <2.08E+01 0.00E+00 2.08E+01 BaLa-140 <2.47E+01 0.00E+00 2.47E+01 Be-7 6.04E+02 1.79E+02 2.07E+02 K-40 2.30E+03 4.34E+02 2.68E+02 Sample ID: 417180 Sample Dates: 7/4/2016 - 7/4/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.40E+01 0.00E+00 1.40E+01 Co-58 <1.51E+01 0.00E+00 1.51E+01 Fe-59 <3.92E+01 0.00E+00 3.92E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <4.73E+01 0.00E+00 4.73E+01 Zr-95 <3.37E+01 0.00E+00 3.37E+01 Nb-95 <2.18E+01 0.00E+00 2.18E+01 I-131 <1.91E+01 0.00E+00 1.91E+01 Cs-134 <1.68E+01 0.00E+00 1.68E+01 Cs-137 <2.07E+01 0.00E+00 2.07E+01 BaLa-140 <2.37E+01 0.00E+00 2.37E+01 Be-7 1.14E+03 2.30E+02 2.00E+02 K-40 2.52E+03 4.56E+02 1.95E+02 Sample ID: 419277 Sample Dates: 8/1/2016 - 8/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.72E+01 0.00E+00 1.72E+01 Co-58 <1.49E+01 0.00E+00 1.49E+01 Fe-59 <3.68E+01 0.00E+00 3.68E+01 Co-60 <2.01E+01 0.00E+00 2.01E+01 Zn-65 <4.61E+01 0.00E+00 4.61E+01 Zr-95 <3.71E+01 0.00E+00 3.71E+01 Nb-95 <2.08E+01 0.00E+00 2.08E+01 I-131 <1.76E+01 0.00E+00 1.76E+01 Cs-134 <2.14E+01 0.00E+00 2.14E+01 Cs-137 <2.29E+01 0.00E+00 2.29E+01 BaLa-140 <2.67E+01 0.00E+00 2.67E+01 Be-7 1.42E+03 2.58E+02 1.88E+02 K-40 2.52E+03 4.72E+02 2.20E+02 Sample ID: 423138 Sample Dates: 9/1/2016 - 9/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.75E+01 0.00E+00 1.75E+01 Co-58 <2.32E+01 0.00E+00 2.32E+01 Fe-59 <4.50E+01 0.00E+00 4.50E+01 Co-60 <1.96E+01 0.00E+00 1.96E+01 Zn-65 <4.53E+01 0.00E+00 4.53E+01 Zr-95 <3.56E+01 0.00E+00 3.56E+01 Nb-95 <2.40E+01 0.00E+00 2.40E+01 I-131 <4.60E+01 0.00E+00 4.60E+01 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 180 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

BRUNSWICK Radiological Environmental Monitoring Analysis Report - 2016 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 804 Sample Point 804 [ INDICATOR - S @ 0.7 miles ]

Sample ID: 423138 Sample Dates: 9/1/2016 - 9/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Cs-134 <2.41E+01 0.00E+00 2.41E+01 Cs-137 <1.88E+01 0.00E+00 1.88E+01 BaLa-140 <3.94E+01 0.00E+00 3.94E+01 Be-7 9.71E+02 2.48E+02 2.85E+02 K-40 2.38E+03 4.33E+02 1.92E+02 Sample ID: 426198 Sample Dates: 10/3/2016 - 10/3/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <2.02E+01 0.00E+00 2.02E+01 Co-58 <1.92E+01 0.00E+00 1.92E+01 Fe-59 <4.15E+01 0.00E+00 4.15E+01 Co-60 <2.80E+01 0.00E+00 2.80E+01 Zn-65 <4.62E+01 0.00E+00 4.62E+01 Zr-95 <3.94E+01 0.00E+00 3.94E+01 Nb-95 <1.96E+01 0.00E+00 1.96E+01 I-131 <1.70E+01 0.00E+00 1.70E+01 Cs-134 <2.90E+01 0.00E+00 2.90E+01 Cs-137 <2.51E+01 0.00E+00 2.51E+01 BaLa-140 <2.54E+01 0.00E+00 2.54E+01 Be-7 1.64E+03 4.70E+02 1.79E+02 K-40 2.26E+03 4.60E+02 2.65E+02 Sample ID: 428562 Sample Dates: 11/1/2016 - 11/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.79E+01 0.00E+00 1.79E+01 Co-58 <2.00E+01 0.00E+00 2.00E+01 Fe-59 <3.47E+01 0.00E+00 3.47E+01 Co-60 <1.99E+01 0.00E+00 1.99E+01 Zn-65 <4.53E+01 0.00E+00 4.53E+01 Zr-95 <3.81E+01 0.00E+00 3.81E+01 Nb-95 <2.82E+01 0.00E+00 2.82E+01 I-131 <2.03E+01 0.00E+00 2.03E+01 Cs-134 <2.86E+01 0.00E+00 2.86E+01 Cs-137 <2.69E+01 0.00E+00 2.69E+01 BaLa-140 <1.82E+01 0.00E+00 1.82E+01 Be-7 7.44E+02 2.17E+02 2.49E+02 K-40 2.27E+03 4.61E+02 2.18E+02 Sample ID: 431211 Sample Dates: 12/1/2016 - 12/1/2016 WAXMYRTLE Nuclide Activity 2 Sigma Error MDA Mn-54 <1.55E+01 0.00E+00 1.55E+01 Co-58 <2.59E+01 0.00E+00 2.59E+01 Fe-59 <4.94E+01 0.00E+00 4.94E+01 Co-60 <2.50E+01 0.00E+00 2.50E+01 Zn-65 <4.40E+01 0.00E+00 4.40E+01 Zr-95 <3.65E+01 0.00E+00 3.65E+01 Nb-95 <2.52E+01 0.00E+00 2.52E+01 I-131 <3.01E+01 0.00E+00 3.01E+01 Cs-134 <2.10E+01 0.00E+00 2.10E+01 Cs-137 <2.50E+01 0.00E+00 2.50E+01 BaLa-140 <3.35E+01 0.00E+00 3.35E+01 Be-7 1.41E+03 3.02E+02 2.73E+02 K-40 1.71E+03 4.65E+02 4.41E+02 Report Generated @ 4/10/2017 10:26:45 EnRad Laboratories Appendix E - Page 181 of 181 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

APPENDIX F ERRATA TO PREVIOUS REPORTS Appendix F - Page 1

APPENDIX F ERRATA TO THE 2014 and 2015 BNP AREOR During a 2016 Dosimetry Laboratory peer assessment, it was discovered the 2014 and 2015 (all quarters) internal environmental TLD crosschecks were not completed in accordance with procedure RD/0/B/4000/13, Environmental Monitoring (NCR # 02073609).

Environmental monitoring is not National Voluntary Laboratory Accreditation Program (NVLAP) accredited, but the internal crosscheck data was reported to the NRC in the 2014 and 2015 AREORs. External environmental TLD crosschecks were performed during 2014 and 2015 in accordance with procedure RD/0/B/4000/13, Environmental Monitoring; therefore, environmental TLD QA/QC was performed.

Laboratory TLD data supporting the 2014 and 2015 internal environmental TLD crosscheck result tables could not be located during the 2016 assessment. The internal environmental crosscheck (Duke Energy) table indicated in the quality assurance sections of the 2014 and 2015 reports is therefore not considered acceptable and is removed from the 2014 and 2015 reports. The internal environmental TLD crosscheck data were not presented in the 2016 AREOR and were removed from the quality assurance section in entirety.

Appendix F - Page 2