Text

Annual Radiological Environmental Operating Report for 2014
	ML15118A470
Person / Time
Site:	Harris
Issue date:	04/27/2015
From:	Waldrep B; Duke Energy Progress
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	HNP-15-030
	Download: ML15118A470 (206)
	v • d • e

( ., DUKE Benjamin C. Waldrep Vice President

~ ENERGY. Harris Nuclear Plant 5413 ShearonHarrisAd New Hill NC 27562*9300 919*362*2502 APR 2 7 2015 Serial: HNP-15-030 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Shearon Harris Nuclear Power Plant, Unit 1 Docket No. 50-400/Renewed License No. NPF-63

Subject:

Annual Radiological Environmental Operating Report Ladies and Gentlemen:

In accordance with Harris Nuclear Plant Technical Specification 6.9.1.3, Duke Energy Progress, Inc., is providing the enclosed Annual Radiological Environmental Operating Reportfor 2014.

This submittal contains no regulatory commitments. Please refer any questions regarding this submittal to Dave Corlett, Manager- Regulatory Affairs, at (919) 362-3137.

Sincerely, Enclosure cc: Mr. J.D. Austin, NRC Sr. Resident Inspector, HNP Ms. M. Barillas, NRC Project Manager, HNP Mr. V. M. McCree, NRC Regional Administrator, Region II

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT DUKE ENERGY PROGRESS, INC.

SHEARON HARRIS NUCLEAR POWER PLANT 2014

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 . . . . . . . 3-2 3.2 Drinking Water . . . . . . . . . . . . 3-7 3.3 Surface Water . . . . . . . . . . . . 3-9 3.4 Ground Water . . . . . . . . . . . . 3-11 3.5 Milk/Broadleaf Vegetation. . . . . . . . . . 3-11 3.6 Food Products . . . . . . . . . . . . 3-12 3.7 Aquatic Vegetation. . . . . . . . . . . . 3-12 3.8 Fish . . . . . . . . . . . . . . 3-13 3.9 Shoreline Sediment . . . . . . . . . . . 3-14 3.10 Bottom Sediment . . . . . . . . . . . 3-14 3.11 Direct Gamma Radiation . . . . . . . . . . 3-14 3.11.1 Environmental TLD . . . . . . . . . 3-14 3.12 Land Use Census . . . . . . . . . . . 3-15 3.12.1 Purpose of Land Use Census . . . . . . . . 3-15 3.12.2 Methodology. . . . . . . . . . . 3-16 3.12.3 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 Intercomparison 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 . . . . . 4-3 4.7 TLD Intercomparison Program . . . . . . . . . 4-3 4.7.1 Nuclear Technology Services Intercomparison Program . . . 4-3 4.7.2 Internal Crosscheck (Duke Energy) . . . . . . . 4-3 i

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 Drinking Water . . . . . . . . . . A-4 A.3 Surface Water . . . . . . . . . . A-4 A.4 Ground Water . . . . . . . . . . . A-5 A.5 Milk . . . . . . . . . . . . A-5 A.6 Broadleaf Vegetation . . . . . . . . . A-5 A.7 Food Products . . . . . . . . . . . A-6 A.8 Aquatic Vegetation . . . . . . . . . . A-6 A.9 Fish . . . . . . . . . . . . A-6 A.10 Shoreline Sediment . . . . . . . . . . A-6 A.11 Bottom Sediment . . . . . . . . . . A-7 A.12 Direct Gamma Radiation (TLD) . . . . . . . A-7 A.13 Annual Land Use Census . . . . . . . . A-7 Appendix B: Radiological Environmental Monitoring Program -

Summary of Results 2014 . . . . . . . . . B-1 Radiological Environmental Monitoring Program Data Summary. . . B-2 Footnotes to Appendix B . . . . . . . . . . B-5 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 Analytical Deviations . . . . . . . . . D-2 Appendix E: Radiological Environmental Monitoring Program Results 2014 . . E-1 Appendix F: Errata to Previous Reports . . . . . . . . . F-1 Errata to the 2014 AREOR . . . . . . . . F-2 LIST OF FIGURES 2.1-1 Radiological Environmental Sampling Locations (Distant from Plant) . . 2-5 2.1-2 Harris Nuclear Station Sampling Locations Map (One Mile Radius) . . 2-6 2.1-3 Harris Nuclear Station Sampling Locations Map (Ten Mile Radius) . . 2-7 2.1-4 Radiological Environmental Sampling Locations (Distant from Plant). . 2-8 2.1-5 Radiological Environmental Sampling Locations (Nearest Plant) . . . 2-9 2.1-6 Radiological Environmental Sampling Locations (Nearest Plant) . . . 2-10 2.1-7 Radiological Environmental Ground Water (GW) Sampling Locations. . 2-11 3.1-1 Air Particulate for Gross Beta - Activity (Location 1 and 5) . . . 3-3 3.1-2 Air Particulate for Gross Beta - Activity (Location 2 and 5) . . . 3-3 3.1-3 Air Particulate for Gross Beta - Activity (Location 4 and 5) . . . 3-4 3.1-4 Air Particulate for Gross Beta - Activity (Location 26 and 5) . . . 3-4 3.1-5 Air Particulate for Gross Beta - Activity (Location 47 and 5) . . . 3-5 3.1-6 Air Particulate for Gross Beta - Activity (Location 63 and 5) . . . 3-5 3.1-7 Air Particulate for Gross Beta - Activity (Location 90 and 5) . . . 3-6 3.1-8 Air Particulate for Gross Beta - Activity (Location 91 and 5) . . . 3-6 3.2 Drinking Water for Gross Beta - Activity (Location 38 and 40) . . . 3-8 3.3-1 Surface Water for Gross Beta - Activity (Location 26 and 38) . . . 3-10 3.3-2 HNP 2014 Surface Water Tritium Activity . . . . . . 3-10 3.11.1 HNP 2014 TLD Averages for Inner and Outer Ring Locations . . . 3-15 ii

3.12 Harris Nuclear Plant 2014 Land Use Census Map. . . . . . 3-19 LIST OF TABLES 2.1-A Radiological Monitoring Program Sampling Locations . . . . 2-12 2.1-B Radiological Monitoring Program Sampling Locations (TLD Sites) . . 2-13 2.2-A Reporting Levels for Radioactivity Concentrations in Environmental Samples 2-14 2.2-B REMP Analysis Frequency . . . . . . . . . 2-14 2.2-C Detection Capabilities for the Lower Limit of Detection. . . . . 2-15 3.0-A Harris Potential Dose Pathway . . . . . . . . . 3-2 3.12.3 Harris Land Use Census Comparison (2013 - 2014). . . . . . 3-18 4.0-A Duke Energy Interlaboratory Comparison Program . . . . . 4-4 4.0-B Eckert & Ziegler Analytics Cross Check Program . . . . . 4-6 4.0-C Environmental Resource Associates (ERA) Proficiency Testing . . . 4-8 4.0-D Environmental Dosimeter Cross-Check Results . . . . . . 4-9 LIST OF ACRONYMS USED IN THIS TEXT (in alphabetical order)

A Annually AC Air Cartridge AP Air Particulate APAC Air Particulate Air Cartridge/Radioiodine AREOR Annual Radiological Environmental Operating Report BW BiWeekly C Control CR Condition Report - Corrective Action Program DW Drinking Water ERA Environmental Resource Associates GPS Global Positioning System GW Ground Water HNP Harris Nuclear Plant or Shearon Harris Nuclear Plant ISFSI Independent Spent Fuel Storage Installation LLD Lower Limit of Detection M Monthly MDA Minimum Detectable Activity mrem Millirem Mk Milk NIST National Institute of Standards and Technology NRC Nuclear Regulatory Commission ODCM Offsite Dose Calculation Manual pCi/kg picocurie per kilogram pCi/l picocurie per liter pCi/m3 picocurie per cubic meter PIP Problem Investigation Program Q Quarterly REMP Radiological Environmental Monitoring Program SA Semiannually SM Semimonthly SW Surface Water TECH SPECs Technical Specifications TLD Thermoluminescent Dosimeter

µCi/ml microcurie per milliliter W Weekly iii

1.0 EXECUTIVE

SUMMARY

The Harris Nuclear Plant (HNP) is operated by Duke Energy Progress, Inc. under a license granted by the Nuclear Regulatory Commission (NRC). Provisions of the Nuclear Regulatory Commissions Regulatory Guide 4.8, Harris Nuclear Plant Technical Specifications, and the Harris Nuclear Plant Offsite Dose Calculation Manual (ODCM) establish the requirements of the Radiological Environmental Monitoring Program (REMP).

This report describes the HNP REMP and the program results for January 1, 2014, through December 31, 2014.

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 Harris Nuclear Plant ODCM.

Required analyses were performed and detection capabilities were met for the collected samples required by the ODCM. One thousand four hundred and eighty-three samples were analyzed comprising 1,675 test results in order to compile data for the 2014 HNP Annual Radiological Environmental Operating Report (AREOR). Based on the annual HNP land use census, the current number of sampling sites for Harris Nuclear Plant is sufficient.

Concentrations observed in the environment in 2014 for plant related radionuclides were generally within the ranges of concentrations observed in the past. Inspection of the data showed that radioactivity concentrations were as expected and all positively identified measurements attributed to plant operations were within the HNP ODCM regulatory limits.

The continued operation of the HNP has not contributed measurable radiation or the presence of gamma radioactivity, with the exception of Harris Lake bottom sediment, in the environmental monitoring program. The Harris Lake Surface water samples and the Ground water samples revealed tritium concentrations that are well within the applicable regulatory limits.

Section 1 - Page 1

2.0 INTRODUCTION

2.1 SITE DESCRIPTION AND SAMPLE LOCATIONS Duke Energy's Harris Nuclear Plant consists of a pressurized water reactor with a net output of approximately 930 MWe (Megawatts electric). Commercial production was initiated on January 3, 1987. HNP is located in southwest Wake County, North Carolina. The site is along U.S. route 1 approximately sixteen (16) miles southwest of Raleigh, North Carolina and approximately fifteen (15) miles northeast of Sanford, North Carolina. The nearest community is New Hill, North Carolina, which is north of the site.

Harris Lake is adjacent to the plant itself and is the source of cooling tower makeup water. The lake was impounded during the construction of the Harris Plant. The lake is fed by Buckhorn Creek and is approximately 4,400 acres in area. The main dam is approximately 4.7 miles south of the site. The primary discharges to Harris Lake from the plant are surface runoff, cooling tower blowdown, and radiological waste process systems.

Fishing, boating, and swimming are popular activities on Harris Lake and other nearby lakes.

Duke Energy Progress, Inc. encourages the recreational use of the lake, Harris Lake County Park, and the adjoining lands through a variety of agreements with state and local government.

Within a five mile radius, most of the land is wooded with only a few residences and limited agricultural activity. There are no residences on the plant site. The chief use of land is for production of timber and pulp fiber.

Within a ten mile radius, the area is considered rural with significant populations in Apex, Holly Springs, and Fuquay - Varina. Currently, these communities are experiencing significant growth.

Within a fifty-mile radius, much of the land is used in agricultural production with significant crops including corn, soybeans, and tobacco. Livestock is also an important component with significant production in cattle, hogs, poultry, and dairy products.

Consumption of drinking water, food crops, and fish are sample media that are examples of ingestion pathways for exposure. Although the contribution to background radiation is small, Duke Energy Progress, Inc. has established the Radiological Environmental Monitoring Program (REMP) 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 locations are selected because they are unaffected by the operation of the plant. Figures 2.1-1, Section 2 - Page 1

2.1-2, 2.1-3, 2.1-4, 2.1-5, 2.1-6, and 2.1-7 are maps depicting the HNP REMP sampling locations and the 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 1982 at the Harris Nuclear Plant (HNP). Radiation and radioactivity in various environmental media have been monitored for 32 years, including 5 years prior to commencing operation. Monitoring is also provided for control locations, which would not be impacted by operations of the HNP.

Using these control locations and data collected prior to operation allows comparison of data collected at locations near the HNP, which could potentially be impacted by its operations. The preoperational program provides data on the existing environmental radioactivity levels for the site and vicinity which may be used to determine whether increases in environmental levels are attributable to the station.

This monitoring program is based on NRC guidance and is conducted in accordance with Operational Requirement 3.12.1 in the HNP Offsite Dose Calculation Manual (ODCM) and applicable procedures; 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. This program 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 HNP Offsite Dose Calculation Manual (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 land use.

This census satisfies the requirements of Section IV.B.3 of Appendix I to 10 CFR 50. Results are shown in Table 3.12.3.

Participation in an interlaboratory comparison program is performed in fulfillment of HNP ODCM Operational Requirements. The comparison program 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:

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 ODCM as the smallest concentration of radioactive material in a sample that will yield a net count, above the system background, that will be detected with 95% probability with only 5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD is an a priori (before the fact) 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 ODCM and are listed in Table 2.2-C.

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 Section 2 - Page 3

calculated using a sample background and may be thought of as an "actual" LLD for a particular sample measurement.

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 plant.

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 Chernobyl accident and the 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 Radiological Environmental Sampling Locations (Distant from Plant)

Section 2 - Page 5

Figure 2.1-2 Section 2 - Page 6

Figure 2.1-3 Section 2 - Page 7

Figure 2.1-4 Radiological Environmental Sampling Locations (Distant from Plant)

Section 2 - Page 8

Figure 2.1-5 Radiological Environmental Sampling Locations (Nearest Plant)

Section 2 - Page 9

Figure 2.1-6 Radiological Environmental Sampling Locations (Nearest Plant)

Section 2 - Page 10

Figure 2.1-7 Radiological Environmental Ground Water (GW) Sampling Locations Section 2 - Page 11

TABLE 2.1-A HARRIS NUCLEAR PLANT RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS Table 2.1-A Codes Table 2.1-A Codes (Cont.)

W Weekly SM Semimonthly AC Air Cartridge SB Sediment Bottom FI Fish BW BiWeekly Q Quarterly AP Air Particulate AV Aquatic Vegetation MK Milk M Monthly SA Semiannually SW Surface Water FP Food Product A Annual DW Drinking Water BLV Broadleaf Vegetation C Control I Indicator SS Sediment Shoreline GW Ground Water Site Type Location Description* AC & SW DW SS SB AV FP(a) Fish Milk BLV(b) GW AP (FI) (Mk) 1 I 2.6 miles N W/Q 2 I 1.4 miles NNE W/Q 4 I 3.1 miles NNE W/Q 5 C >12 miles WNW - Pittsboro W/Q SM/M

>12 Miles NNW - Pittsboro M(a) M(b)

(BLV) 12 I 0.9 miles SSW M(b) 26 I 4.7 miles S W/Q BW/M SA A 38 C 6.2 miles WSW BW/M BW/M 40 I 17.2 miles SSE -- Lillington BW/M BW/M 41 I 3.8 miles S SA A 44 I Site varies in Harris Lake SA 45 C Site varies in Cape Fear River above Buckhorn Dam SA 47 I 3.4 miles SSW W/Q 51 I Water Treatment Building (On Site) BW/M 52 I 3.8 miles S SA 57 I 0.4 miles SSW Q 59 I 0.5 miles NNE Q 60 I 0.5 miles ESE Q 61 C 2.5 miles E A 63 I 0.6 miles SW W/Q M(b) 68 I 0.2 miles W Q 69 I 0.2 miles NNE Q 70 I 0.4 miles E Q 71 I 0.3 miles SE Q 72 I 0.2 miles SE Q 73 I 0.2 miles S Q 74 I 0.2 miles SSE Q 75 I 0.1 miles ESE Q 76 I 0.1 miles S Q 77 I 0.4 miles S Q 78 I 0.5 miles S Q 79 I 0.5 miles S Q 80 I 0.6 miles S Q 81 I 0.6 miles S Q 82 I 0.6 miles S Q 83 I 1.6 miles SSW Q 90 I 0.5 miles SSW W/Q 91 I 1.6 miles ENE W/Q 96 I 4.6 miles ESE Humbug Farm (not sampled in 2013 or 2014) SM/M 97 C 19.1 miles NW - Granite Springs Farm M(a)

(a) When Available, during Harvest/Growing Season (b) During Growing Season per ODCM - May through October

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 12

TABLE 2.1-B HARRIS NUCLEAR PLANT RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS (TLD SITES)

Table 2.1-B Codes IR Inner Ring OR Outer Ring C Control SI Special Interest Site Measure Location* Distance Sector Site Measure Location* Distance Sector

Type (miles) # Type (miles) 1 IR 2.6 N 26 OR 4.7 S 2 IR 1.4 NNE 27 OR 4.8 SSW 3 IR 1.9 ENE 28 OR 4.8 SW 4 SI New Hill (Population Center) 3.1 NNE 29 OR 5.7 WSW 5 C Pittsboro >12 WNW 30 OR 5.6 W 6 IR 0.8 ENE 31 OR 4.7 WNW 7 IR 0.7 E 32 SI Jordan Lake (Population Center) 6.4 NNW 8 IR 0.6 ESE 33 OR 4.5 NNW 9 IR 2.2 SE 34 SI Apex (Population Center) 8.7 NE 10 IR 2.2 SSE 35 SI Holly Springs (Population Center) 6.9 E 11 IR 0.6 S 36 SI Sunset Lake (Population Center) 10.9 E 12 IR 0.9 SSW 37 SI Fuquay-Varina (Population Center) 9.2 ESE 13 IR 0.7 WSW 48 OR 4.5 N 14 IR 1.5 W 49 IR 2.5 NE 15 IR 2.0 W 50 IR 2.6 ESE 19 OR 5.0 NNE 53 OR 5.8 NW 20 OR 4.5 NE 56 IR 3.0 WSW 21 OR 4.8 ENE 63 IR 0.6 SW 22 OR 4.3 E 67 IR 1.2 ENE 23 OR 4.8 ESE 93 IR 2.2 WNW 24 OR 4.0 SE 94 IR 2.0 NW 25 OR 4.7 SSE 95 IR 2.0 NNW

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 13

TABLE 2.2-A REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES Analysis Water Airborne Fish Milk Food Products (pCi/liter) Particulate or (pCi/kg-wet) (pCi/liter) (pCi/kg-wet)

Gases (pCi/m3)

H-3 20,000(a)

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(b) 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 (a) For drinking water samples. This is 40 CFR Part 141 value. If no drinking water pathway exists, a value of 30,000 pCi/liter may be used.

(b) If no drinking water pathway exists, a value of 20 pCi/liter may be used.

TABLE 2.2-B REMP ANALYSIS FREQUENCY Sample Analysis Gamma Tritium Low Gross TLD Medium Schedule Isotopic Level Beta I-131 Air Radioiodine Weekly X Air Particulate Weekly X Quarterly X Direct Radiation Quarterly X Surface Biweekly Composite X Water Monthly Composite X X X Drinking Biweekly Composite X Water Monthly Composite X X X Ground Water Quarterly X X Bottom Sediment Semiannually X Shoreline Sediment Semiannually X Milk Semimonthly/Monthly X X Fish Semiannually X Aquatic Vegetation Annually X Broadleaf Vegetation Monthly(a) X Food Products Monthly(b) X (a) During growing season per ODCM - - May through October (b) When Available Section 2 - Page 14

TABLE 2.2-C DETECTION CAPABILITIES FOR THE LOWER LIMIT OF DETECTION Analysis Water Airborne Fish Milk Food Products Sediment (pCi/liter) Particulates or (pCi/kg-wet) (pCi/liter) (pCi/kg-wet) (pCi/kg-dry)

Gases (pCi/m3)

Gross Beta 4 0.01 H-3 2000 (a)

Mn-54 15 130 Fe-59 30 260 Co-58, 60 15 130 Zn-65 30 260 Zr-Nb-95 15 I-131 1(b) 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) If no drinking water pathway exists, a value of 3000 pCi/liter may be used.

(b) If no drinking water pathway exists, a value of 15 pCi/liter may be used.

Section 2 - Page 15

3.0 INTERPRETATION OF RESULTS The following section depicts and explains the review of the REMP results conducted during 2014 for the Harris Nuclear Plant (HNP) and fulfills the reporting requirements of Technical Specifications 6.9.1.3 and HNP ODCM E.3. Review of the 2014 REMP analysis results was performed to identify changes in environmental levels as a result of HNP operations. Sample data for 2014 was compared to preoperational and historical data.

Evaluation for significant trends was performed for radionuclides that are listed as required within the HNP 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 drinking water and gross beta trending for air particulates was initiated in 1996. Other radionuclides detected that are the result of plant operation, but not required for reporting, are trended.

The HNP 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 HNP liquid effluents which contained the radionuclides.

A change occurred in 2013 in the analysis procedures, the analysis instrumentation, and the analysis laboratory due to the merger between Progress Energy and Duke Energy.

The Harris Energy and Environmental Center (HE&EC) (Progress Energys central laboratory) was subsequently decommissioned and laboratory services were consolidated at the EnRad Laboratory in Huntersville, N.C.

Review of the 2014 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 HNP and surrounding areas that were attributable to plant operations. Inspection of the data showed that radioactivity concentrations were as expected and all positively identified measurements attributed to plant operations were within HNP ODCM regulatory limits; thus presenting no significant impact to the environment or public health and safety.

A statistical summary of the HNP data for 2014 has been compiled and summarized in Appendix B along with any plant-derived activity detected within the scope of the REMP. No detectable tritium activity was observed at Lillington, N.C., located 17 miles downstream on the Cape Fear River, which is the first public drinking water (ingestion pathway) location below the Harris Lake discharge spillway. No plant-related gamma activity has been detected in fish collected from Harris Lake or in the water samples from Lillington, N.C. The Harris Lake bottom sediment detected plant-derived gamma activity, but poses no radiological dose to the general public via this pathway due to the fact that the bottom sediment is not easily accessible. This sample is for long-term trends.

Section 3 - Page 1

Radioactivity in environmental samples attributed to plant operations in 2014 for which there is a potential dose pathway to the general public is seen in Table 3.0-A.

Table 3.0-A Harris Potential Dose Pathway Environmental Location w/Highest Maximum Individual Radionuclide Activity and Occurrence Media Annual Mean Dose (mrem/yr)

No ingestion pathway.

Surface Water H-3 (tritium) Harris Lake 5,440 pCi/L (13/13)

No dose calculated.

See above H-3 activity Fish H-3 (tritium) Harris Lake Assume H-3 equilibrium between 0.0120 Total Body lake water and fish tissue 3.1 AIRBORNE RADIOIODINE AND PARTICULATES The 468 air cartridge/radioiodine (AC) samples from indicator and control stations had I-131 concentrations less than the ODCM LLD of 7.00E-2 pCi/m3. The air samplers operated for a total of 99.8% availability for the 2014 year. No I-131 activity due to HNP operations has been detected in air samples collected from 1987 through 2014, which is the entire operating history of the plant. However, I-131 was detected in air samples for a three week period following the Fukushima Dai-ichi nuclear power plant incident after the March 11, 2011, earthquake and tsunami (CR # 456564) and for a six-week period following the Chernobyl incident in April 1986.

For the period of January 1, 2014, to December 31, 2014, the gross beta activity was detectable in the airborne particulate (AP) samples, with acceptable runtime, from the eight indicator locations and the control location. The 416 indicator samples had an average concentration of 1.82E-2 pCi/m3, a value lower than the preoperational data of 2.00E-2 pCi/m3. Similar gross beta activities were observed at the control location in Pittsboro, which had an average concentration of 1.82E-2 pCi/m3 in 52 control samples.

Figures 3.1-1 through 3.1-8 provide a graphic representation of the gross beta activity at the indicator locations compared to the control location for the year 2014. No plant-related gamma activity was observed for any air particulate filters analyzed during 2014.

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 2014 collection year.

No plant-related gamma activity was detected in quarterly composite filter samples from either the indicator or control locations during 2014. HNP ODCM LLDs and reporting levels for air particulates are contained in Section 2.0 in Table 2.2-C and 2.2-A respectively.

Section 3 - Page 2

Figure 3.1-1 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 1 (2.6 Miles N) 4.00E-02 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Figure 3.1-2 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 2 (1.4 Miles NNE) 4.00E-02 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Section 3 - Page 3

Figure 3.1-3 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 4 (3.1 Miles NNE) 4.00E-02 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Figure 3.1-4 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 26 (4.7 Miles S) 4.00E-02 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Section 3 - Page 4

Figure 3.1-5 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 47 (3.4 Miles SSW) 4.00E-02 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Figure 3.1-6 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 63 (0.6 Miles SW) 4.00E-02 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Section 3 - Page 5

Figure 3.1-7 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 90 (0.5 Miles SSW) 4.00E-02 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Figure 3.1-8 HNP from 12/30/2013 To 12/29/2014 Air Particulate for Gross Beta - Activity (pCi/cubic meter)

Control Location 5 (>12 Miles WNW - Pittsboro) Indicator Location 91 (1.6 Miles ENE - HEEC Sewage Treatment Facility) 4.50E-02 4.00E-02 72.03 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months downtime CR # 689793 3.50E-02 3.00E-02 2.50E-02 Activity 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 Jan-14 Apr-14 Jul-14 Oct-14 Date Section 3 - Page 6

3.2 DRINKING WATER Twenty-six drinking water samples collected at the Lillington Municipal water supply (DW/SW-40), the 26 water treatment building samples (DW-51) at the Harris Plant, and the 26 control samples collected from the Cape Fear River above the Buckhorn Dam (DW/SW-38) contained less than detectable I-131 activity (< 1.0E+0 pCi/L, HNP ODCM LLD) during 2014. It has typically been the experience for the I-131 drinking water samples to contain less than the ODCM LLD (< 1.0E+0 pCi/L) for the preoperational and operational period with the exception of the 1986 Chernobyl incident and the 2011 Japan earthquake and tsunami which triggered the Fukushima Dai-ichi nuclear power plant incident (CR #458543). The water samplers operated for a total of 100.0% availability for the 2014 year. Refer to Appendix C or Appendix D for deviations and unavailable samples in 2014 collection year.

The average annual gross beta concentrations at the indicator and control locations were 2.95E+0 pCi/L and 4.06E+0 pCi/L, respectively. The preoperational average was 4.00E+0 pCi/L. These concentrations are attributed to the natural environment and are not attributed to plant operations. Figure 3.2 provides graphic representation of the drinking water gross beta activity during 2014 for Location 40 (Lillington) and Location 38 (control at Cape Fear).

Analyses for gamma-emitting radionuclides from plant operations indicated concentrations were less than the lower limit of detection for drinking water. Table 2.2-C contains ODCM LLD values for gamma-emitting radionuclides in drinking water.

Tritium concentrations in the Lillington Municipal Water Supply samples (DW/SW-40) were less than the ODCM LLD (2000 pCi/L) and the administrative limit (250 pCi/L)

(see Appendix B, Footnote 7). The annual average tritium concentration for the Water Treatment Building sample on site (DW-51) was 4.83E+3 pCi/L, with a minimum and maximum value of 3.57E+3 pCi/L and 7.17E+3 pCi/L, respectively.

Section 3 - Page 7

Figure 3.2 HNP from 12/30/2013 To 12/29/2014 Drinking Water for Gross Beta - Activity (pCi/Liter)

Control Location 38 (Cape Fear Plant Intake) Indicator Location 40 (Lillington - Cape Fear River) 12 10 8

Activity 6

4 2

0 Jan-14 Apr-14 Jul-14 Oct-14 Dec-14 Date Section 3 - Page 8

3.3 SURFACE WATER Surface water samples were collected (weekly) and analyzed (bi-weekly) for I-131.

Water samples collected contained less than detectable I-131 activity during 2014. It has typically been the experience for the I-131 surface water samples to contain less than the ODCM LLD (< 1.0E+0 pCi/L) for the preoperational and operational period with the exception of the 1986 Chernobyl incident and the 2011 Japan earthquake and tsunami which triggered the Fukushima Dai-ichi nuclear power plant incident (CR # 458495 and 461822). The water samplers operated for a total of 100.0% availability for the 2014 year. Refer to Appendix C or Appendix D for deviations and unavailable samples in the 2014 collection year.

Average gross beta concentrations at the indicator and control locations were 3.92E+0 pCi/L and 4.06E+0 pCi/L, respectively, in 2014, indicating no contribution from plant operations (See Figure 3.3-1).

Surface water samples were analyzed for gamma and tritium radioactivity. The concentrations of man-made gamma-emitters were less than their respective lower limits of detection (see Table 2.2-C).

The annual average tritium concentration in Harris Lake at the Spillway was 5.44E+3 pCi/L with minimum and maximum values of 3.68E+3 pCi/L and 8.79E+3 pCi/L, respectively (see Figure 3.3-2). The average Harris Lake Spillway (SW-26) tritium concentration showed a decrease in tritium compared to the annual average of 8.21E+3 pCi/L in 2013. This concentration remains well below regulatory limits. The tritium liquid release program is optimized by releasing liquid effluents during periods of high rainfall to minimize the impact of the tritium concentration in the lake. The decrease in the average tritium concentration from 2013 to 2014 is due to the amount of rainfall or water in 2014 and the number of liquid waste releases.

Section 3 - Page 9

Figure 3.3-1 HNP from 12/30/2013 To 12/29/2014 Surface Water for Gross Beta - Activity (pCi/Liter)

Control Location 38 (Cape Fear Plant Intake) Indicator Location 26 (4.7 Miles S) 12 10 8

Activity 6

4 2

0 Jan-14 Apr-14 Jul-14 Oct-14 Dec-14 Date Figure 3.3-2 HNP 2014 Surface Water Tritium Activity Control Location 38 Indicator Location 26 Indicator Location 40 EPA Drinking Water Level EPA Reporting Level 40000 35000 30000 25000 pCi/Liter 20000 15000 10000 5000 0

Jan-14 Feb-14 Mar-14 Apr-14 May-14 Jun-14 Jul-14 Aug-14 Sep-14 Oct-14 Nov-14 Dec-14 Date Section 3 - Page 10

3.4 GROUND WATER Ground water samples are collected on site at HNP and analyzed for gamma emitters and tritium. The measured ground water gamma and tritium concentrations were below the required HNP ODCM Table 4.12-1 LLDs for environmental samples and Table 2.2-C.

The tritium limits are 2000 picocuries per Liter (pCi/L) for a drinking water pathway and 3000 pCi/L if no drinking water pathway exists. HNP administratively established a ground water tritium analysis LLD of approximately 250 pCi/L, which is well below the requirements specified in the HNP ODCM.

The ground water tritium analysis shows the presence of tritium, ranging from 202 pCi/Liter to 1.71E+3 pCi/Liter in 2014; however, the results are well below the EPA reportable drinking water limit (20,000 pCi/Liter) and non-drinking water limit (30,000 pCi/Liter). The ground water wells, located on site at HNP, are monitoring wells and are not a water supply for drinking or irrigation. Therefore, there is no radiological dose via this pathway.

3.5 MILK/BROADLEAF VEGETATION During 2014, as in the past years with the exception of the 1986 Chernobyl incident and the 2011 Japan earthquake and tsunami which triggered the Fukushima Dai-ichi nuclear power plant incident (CR #458543), no I-131 activity was detected in the control milk sample. This control milk location is located greater than 12 miles WNW from the plant, thus in an area to be out of the influence of the plant. Gamma analyses revealed no detectable radioactivity from plant operations. Natural gamma activity is consistently identified in each control milk sample along with other naturally occurring nuclides.

In mid-September of 2010, the Humbug Farm (Goat milk indicator MK located in the ESE sector) was added to the HNP Environmental Monitoring Program. This is a small local goat farm which provides samples of goat milk during the spring and summer months. The dairys Nubian and Saanen goats only produce milk about six months per year - from around March to September/October. In 2013, the Humbug Farm ceased operations (CR # 604191 / PIP # G-13-00704); therefore, no indicator milk samples were collected. In May of 1997, the Maple Knoll Dairy (indicator MK located in the SSE sector) ceased operations.

In lieu of the monthly milk samples, per HNP ODCM Table 3.12-1, broadleaf vegetation samples were collected in both the SW and SSW sectors. Broadleaf sampling is conducted to simulate dose to an individual via the milk pathway for compliance purposes. Broadleaf vegetation sampling is accomplished by collecting monthly, three different species of samples, when available during the growing season (May through October), at two locations at the site boundary (two indicator locations of the highest predicted annual average ground level D/Q) and at the control location (BL-5 in the NNW sector at greater than 12 miles). The gamma analyses on the broadleaf vegetation did not detect any plant-related radioactivity in any of the broadleaf vegetation (Fig Leaf, Section 3 - Page 11

Maple, Sweetgum, and Wax Myrtle) in 2014. Refer to Appendix C or Appendix D for deviations and unavailable samples in the 2014 collection year.

3.6 FOOD PRODUCTS None of the gardens identified during past or present annual Land Use Census are irrigated by water in which liquid plant wastes have been discharged. In July 2006, Revision 18 of the HNP ODCM identified that food crop collection was above and beyond requirements and were no longer required to be collected. In order to maintain historical trends, an indicator location (#55) and control location (#5) were sampled and reported in the current years data report (CR # 141151). In September 2013, Revision 24 of the HNP ODCM reinstated control location #5 into the monthly Radiological Environmental Monitoring Program to ensure the food crop pathway was monitored (CR

613179). During the 2014 growing season, food crop location #5 only produced food crops for two months (July and August). In November 2014, Revision 25 of the HNP ODCM added a new food crop control location (#97) at the Granite Springs Farm (19.1 miles in NW sector) to be sampled along with control location #5. Location #97 actually began being sampled in July 2014 during the growing season and has supplied ample food crops, except for September 2014. In September 2014, location #97 was unable to supply three different types of food crops for sampling; therefore, this constitutes a deviation to the 2014 sampling program (see Appendix C).

In addition to milk sampling (or broadleaf vegetation sampling), a food product sampling program was maintained. Various crops were collected during the growing season(s),

which continued year round. The species selected were primarily broad-leaf vegetables which are most sensitive to direct fallout of airborne radioactive particulates. Crops sampled in 2014 included cabbage, collards, cucumbers, eggplant, lettuce, mustard greens, okra, radishes, squash, tomatoes, turnip greens, and zucchini. Gamma analyses of the food crops detected no plant-related activity in nineteen (19) samples from the control locations collected in 2014. The individual, from control location 5 in 2014, did not plant a large enough variety of produce or the garden did not produce three (3) different kinds of food crops/products. This was mostly due to seasonal unavailability, lack of sufficient quantity planted or lack of a variety of crops planted, crops being too small to harvest at the time of collection, and crops being plowed up in September 2014 with nothing being replanted for winter crops. Therefore, food crops/products from location 5 (control) were not available for sampling January, February, March April, May, June, September, October, November, and December of 2014, which constitutes a deviation to the sampling program (see Appendix C).

3.7 AQUATIC VEGETATION The 2014 data shows that there were two aquatic vegetation indicator samples and one control sample collected from Harris Lake, which are sampled annually. The aquatic vegetation samples from Harris Lake pose no radiological dose to the general public by the ingestion pathway. Gamma analyses of the aquatic vegetation detected no plant-Section 3 - Page 12

related activity in the two indicator samples or the one control sample collected during 2014. No long-term trends are readily observed in these samples.

3.8 FISH Analyses for gamma-emitting radionuclides in four samples of bottom-feeding species (catfish) and in eight samples of free-swimming species (sunfish and largemouth bass) from the indicator and control locations revealed no detectable activity for 2014, other than naturally occurring nuclides. This is consistent with the data for 1989-2013. During the Chernobyl period, Cs-134 and Cs-137 were detected in both control and indicator samples.

Fish are assumed to be in equilibrium with the tritium concentration in the lake. The total body/organ dose to the maximum exposed individual due to tritium was calculated using Regulatory Guide 1.109, Rev.1, October 1977, Equation A-1, to be 0.0120 mrem/year.

Equation A-1 Raipj = Cip Uap Daipj where as:

Raipj = total body dose in mrem/yr of H-3 Cip = concentration of nuclide (H-3) in pCi/kg = pCi/L Uap = maximum exposed individuals consumption (Reg. Guide 1.109 Table E-5)

Daipj = ingestion dose factor for total body/organ of individual in Uap in mrem/pCi (Reg. Guide 1.109 Table E-11, E-12, or E-13)

The Total Body/Organ dose is as follows:

Child Teenager Adult Consumption of fish kg/yr 6.9 16 21 Dose (Total Body/Organ) mrem/yr 0.0076 0.0092 0.0120 The total body dose and organ dose, due to tritium in the fish, (ingestion dose factor -

Reg. Guide 1.109 Table E-11, E-12, and E-13) for the maximum exposed individuals consuming 6.9 kg fish/yr. for a child, 16 kg fish/yr. for a teenager, and 21 kg fish/yr. for an adult are 0.0076, 0.0092, and 0.0120 mrem/year respectively.

Section 3 - Page 13

3.9 SHORELINE SEDIMENT Shoreline sediment samples were collected semiannually in 2014 from opposite the discharge structure and near the main dam. Gamma analyses of the shoreline sediments detected natural activity in the samples collected during 2014. No long-term trends are readily observed in these samples.

3.10 BOTTOM SEDIMENT During 2014, a total of two (2) bottom sediment samples were analyzed from the indicator location.

The 2014 data shows Co-58 (2.01E+1 pCi/kg dry, a single value), Co-60 (7.68E+1 pCi/kg dry to 7.86E+2 pCi/kg dry), and Cs-137 (3.39E+1 pCi/kg dry to 2.18E+2 pCi/kg dry) activity in the indicator sample, which is sampled semiannually. The bottom sediment sample from Harris Lake poses no radiological dose to the general public via this pathway due to the fact that it is not easily accessible (i.e. bottom sediment is approximately forty to sixty feet underwater). These samples are for long-term trends for liquid effluents.

3.11 DIRECT GAMMA RADIATION 3.11.1 ENVIRONMENTAL TLD In 2014, 173 TLDs were analyzed, 169 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 average quarterly exposure at the indicator and control locations was 14.6 mR/std. qtr. and 18.2 mR/std. qtr. respectively. The highest indicator location was 2.5 miles NE of the plant and its average was 18.6 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 three missing TLDs during the HNP 2014 collection period (see Appendix C).

Comparison of the quarterly TLD exposure within approximately 2 miles (inner ring) of the plant with that at approximately 5 miles (outer ring) is presented in Figure 3.11.1. These data illustrate that the quarterly inner ring TLD exposures for the four quarters of 2014 are slightly higher than the outer ring TLD exposures.

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 REMP monitoring prior to 2014. This change was a merger initiative in order to achieve fleet standardization of the TLD program.

Section 3 - Page 14

A TLD intercomparison program is conducted as part of the quality assurance program. Results of this program are included in section 4.7.

Figure 3.11.1 HNP 2014 TLD Averages for Inner and Outer Ring Locations 20 19 18 17 16 15 14 13 MilliRoentgen per Qtr.

12 11 10 9

8 7

6 5

4 3

2 1

0 First Quarter Second Quarter Third Quarter Fourth Quarter Inner Outer 3.12 LAND USE CENSUS The 2014 HNP Annual Land Use Census was conducted August 26 and August 27, 2014, as required by the HNP ODCM 4.12.2. Table 3.12.3 summarizes the comparison between the 2013 and 2014 census results. A map indicating identified locations is shown in Figure 3.12. During the 2014 census, no irrigated gardens or new milk locations were identified within five miles (8 kilometers) of HNP. No environmental program changes were required as a result of the 2014 Land Use Census.

3.12.1 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 Section 3 - Page 15

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 or eating goat cheese from local cows or goats, if these are present and if not then broadleaf vegetation is collected in lieu of milk. The grass used to feed these animals may have incorporated or had deposited on it radioactive materials that can 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.

3.12.2 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 vegetables The nearest milk animal The primary methods are visual inspection from the roadside within the five (5) mile radius and personal contact with the individuals.

3.12.3 LAND USE CENSUS RESULTS The 2013 and 2014 results of the survey for the nearest resident, garden, milk and meat animals in each sector are compared in Table 3.12.3.

Section 3 - Page 16

The nearest resident in each sector remained the same from 2013 to 2014, except in the NNE and S sectors. No gardens were located within 5 miles of the plant for the NE, ENE, E, SSW, and S sectors. The gardens located in 2014 were the same as the gardens located in 2013, except for the addition of two new gardens, which are located in the NNE sector (at 1.81 miles) and the SE sector (at 4.11 miles).

The garden in the SSW sector at 3.8 miles in 2013 was no longer available during the 2014 census, and a garden was not located in the SSW sector in 2014. The meat animals located in 2014 were the same as 2013, except in the NNE sector (at 1.81 miles), where a meat animal did not exist per the 2013 census, and the ESE sector (at 4.6 miles) was replaced by a meat animal at 4.72 miles per the 2014 census. No meat animals were found in the NE, SSE, and S sectors in 2014. Milk goats found in the ESE sector in 2012 are no longer available for production of milk for consumption and were not incorporated in the 2014 HNP environmental monitoring sample program. The resident in the S sector (at 5.3 miles), although technically just outside the 5-mile radius, was not included in the 2014 survey data since the residence is outside the 5-mile radius. Harris Lake County Park was included in the 2011 survey based on the described plans that in the future permanent residents (rangers and a campground) would be on the Park site; however, since the 2011 survey the plans have changed and permanent residents will not occur. Therefore, the Harris Lake County Park was not included in the 2014 Land Use Census survey.

Section 3 - Page 17

Table 3.12.3 Harris Land Use Census Comparison (2013 - 2014)

Nearest Pathway (Miles)

SECTOR RESIDENT GARDEN MEAT ANIMAL MILK ANIMAL 2013 2014** 2013 2014** 2013 2014** 2013 2014**

N 2.2 2.21 2.2 2.21 2.2 2.21 --- ---

NNE 1.9 1.81* --- 1.81* --- 1.81* --- ---

NE 2.3 2.43 --- --- --- --- --- ---

ENE 1.6 1.78 --- --- 1.8 2.01 --- ---

E 1.7 1.98 --- --- 1.7 1.98 --- ---

ESE 2.6 2.73 4.6 4.76 4.6 4.72* --- ---

SE 4.11 4.11 ---* 4.11* 4.11 4.11 --- ---

SSE 4.26 4.26 4.26 4.26 --- --- --- ---

S 5.3 ---* --- --- --- --- --- ---

SSW 3.8 3.82 3.8 ---* 3.93 3.93 --- ---

SW 2.9 2.80 2.9 2.80 2.9 2.80 --- ---

WSW 4.5 4.29 4.5 4.29 4.5 4.29 --- ---

W 2.75 2.75 3.73 3.73 4.12 4.12 --- ---

WNW 2.5 2.33 4.68 4.68 4.68 4.68 --- ---

NW 2.4 2.24 2.4 2.24 2.4 2.24 --- ---

NNW 1.6 1.55 2.0 1.82 2.0 1.82 --- ---

Represents a change from the previous year.

- A new GPS unit was used for the 2014 LUC readings (two decimal places); therefore, no changes occurred unless indicated by *.

--- indicates no occurrences within the 5 mile radius Sector and distance determined by Global Positioning System.

NOTE: For the 2013 census, a new GPS unit was used for the readings (two decimal places) in the SE, SSE, SSW, W, and WNW sectors.

Section 3 - Page 18

Figure 3.12 Section 3 - Page 19

4.0 QUALITY ASSURANCE 4.1 SAMPLE COLLECTION EnRad Laboratories, Fisheries, and Aquatic Ecology performed the environmental sample collections 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.

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 EnRad Laboratories has an internal quality assurance program which monitors each type of instrumentation for reliability and accuracy. Daily quality control checks 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 gross beta in drinking and surface water and tritium analyses.

Section 4 - Page 1

4.5 DUKE ENERGY INTERLABORATORY COMPARISON PROGRAM In 2014 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 Environmental Resource Associates (ERA)

RadCheMTM Proficiency Testing program to satisfy the 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. ERA reported results were evaluated based on the 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.

A low-level Iodine-131 in water cross check was not performed during 2014, but was performed during 2013. A low-level Iodine-131 in milk cross check was performed during 2014. The preparation and analysis of both media (milk and water) for the low-level Iodine-131 analysis is accomplished using the EnRad procedure 54, Preparation of Samples for low-level I-131 Analysis. Low-level Iodine-131 sample preparation and testing for both media is a similar process. A low-level Iodine-131 cross check in water is scheduled for the second quarter 2015 cross check program. Low-level Iodine-131 analysis of water was not required during 2014 since the dose calculated for the consumption of the water was not greater than 1 mrem per year in any supported program (PIP G-15-00781 or CR # 744148).

4.5.1 DUKE ENERGY INTERCOMPARISON PROGRAM EnRad Laboratories participated in the Duke Energy Fleet Scientific Services (FSS) Intercomparison Program during 2014. Interlaboratory cross check samples including gamma in water (Marinelli beakers), low-level I-131 in milk, and tritium in water samples were analyzed during 2014. A summary of the EnRad Laboratory program results for 2014 is documented in Table 4.0-A.

4.5.2 ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM EnRad Laboratories participated in the Eckert & Ziegler Analytics Cross Check Program during 2014. Cross check samples including air filters, air cartridges, gross beta in water, various gamma samples in Marinelli beakers (soil, vegetation, and milk), and Iodine in milk samples were analyzed at various times of the year. A summary of the EnRad Laboratory program results for 2014 is documented in Table 4.0-B.

Section 4 - Page 2

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 2014 is documented in Table 4.0-C.

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 Harris Nuclear Plant Radiological Environmental Monitoring Program air, drinking water, surface water, milk, fish, food products, and shoreline sediment samples to the North Carolina Department of Health and Human Services 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 2014 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. Complete documentation of any evaluation will be available and provided to the NRC upon request.

4.7.2 INTERNAL CROSS CHECK (DUKE ENERGY)

Radiation Dosimetry and Records participates in a quarterly TLD intracomparison program administered internally by the Dosimetry Lab. The Dosimetry Lab Staff irradiates environmental dosimeters quarterly and submits them for analysis of the unknown estimated delivered exposure. A summary of the 2014 Internal Cross Check (Duke Energy) Result is documented in Table 4.0-D.

Section 4 - Page 3

TABLE 4.0-A DUKE ENERGY INTERLABORATORY COMPARISON PROGRAM 2014 EnRad Fleet Scientific Services Cross Check Performance Summary Cross check samples were distributed by Fleet Scientific Services (FSS) in accordance with Duke Energy Nuclear Generation Procedure SRPMP 9-2. Seven water samples were analyzed for tritium and gamma emitters, while three milk samples were analyzed for low-level I-131. The below table lists results for specific analyses. Fifty-eight results were evaluated as prescribed in procedure SRPMP 9-2. The acceptance criteria for the program was based on the NRC Inspection Manual Procedure 84750 (IP 84750). These results passed the acceptance criteria for the program.

EnRad FSS EnRad/FSS Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Milk LLI-131 3 pCi/L 3.04E+03 2.96E+03 1.03 Agreement 3 pCi/L 3.06E+03 2.96E+03 1.03 Agreement Q143LIM1 I-131 3 pCi/L 3.07E+03 2.96E+03 1.04 Agreement 3 pCi/L 1.25E+03 1.27E+03 0.98 Agreement Q143LIM2 I-131 3 pCi/L 1.25E+03 1.27E+03 0.98 Agreement 3 pCi/L 1.24E+03 1.27E+03 0.97 Agreement 3 pCi/L 4.64E+02 4.58E+02 1.01 Agreement Q143LIM3 I-131 3 pCi/L 4.70E+02 4.58E+02 1.03 Agreement Tritium in Water Q143TWR1 H-3 3 pCi/L 1.77E+03 1.85E+03 0.96 Agreement 3 pCi/L 1.79E+03 1.85E+03 0.97 Agreement 3 pCi/L 1.78E+03 1.85E+03 0.96 Agreement Q143TWR2 H-3 3 pCi/L 1.76E+05 1.81E+05 0.97 Agreement 3 pCi/L 1.75E+05 1.81E+05 0.96 Agreement Tritium in Water Q141TWR1 H-3 1 pCi/L 1.10E+03 1.05E+03 1.05 Agreement 1.14E+03 1.05E+03 1.09 Agreement 1.11E+03 1.05E+03 1.06 Agreement Q141TWR2 H-3 1 pCi/L 7.04E+03 7.46E+03 0.94 Agreement 7.03E+03 7.46E+03 0.94 Agreement 7.16E+03 7.46E+03 0.96 Agreement Q141TWR3 H-3 1 pCi/L 3.13E+03 3.21E+03 0.98 Agreement 3.11E+03 3.21E+03 0.97 Agreement 3.13E+03 3.21E+03 0.98 Agreement Section 4 - Page 4

TABLE 4.0-A (Cont.)

EnRad FSS EnRad/FSS Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Gamma in Water Q143GWSL-1.0 L Cr-51 3 pCi/L 1.71E+05 1.80E+05 0.95 Agreement 3 pCi/L 1.70E+05 1.80E+05 0.95 Agreement Mn-54 3 pCi/L 6.34E+04 5.99E+04 1.06 Agreement 3 pCi/L 6.35E+04 5.99E+04 1.06 Agreement Co-58 3 pCi/L 6.80E+04 6.89E+04 0.99 Agreement 3 pCi/L 6.81E+04 6.89E+04 0.99 Agreement Fe-59 3 pCi/L 8.72E+04 8.38E+04 1.04 Agreement 3 pCi/L 8.75E+04 8.38E+04 1.04 Agreement Co-60 3 pCi/L 1.27E+05 1.22E+05 1.04 Agreement 3 pCi/L 1.26E+05 1.22E+05 1.03 Agreement Zn-65 3 pCi/L 3.52E+04 3.12E+04 1.13 Agreement 3 pCi/L 3.53E+04 3.12E+04 1.13 Agreement Cs-134 3 pCi/L 5.97E+04 6.35E+04 0.91 Agreement 3 pCi/L 5.95E+04 6.53E+04 0.91 Agreement Cs-137 3 pCi/L 8.01E+04 7.87E+04 1.02 Agreement 3 pCi/L 7.98E+04 7.87E+04 1.01 Agreement Ce-141 3 pCi/L 7.13E+04 7.65E+04 0.93 Agreement 3 pCi/L 7.24E+04 7.65E+04 0.95 Agreement Q143GWSL-3.5 L Cr-51 3 pCi/L 1.76E+05 1.80E+05 0.98 Agreement 3 pCi/L 1.73E+05 1.80E+05 0.96 Agreement Mn-54 3 pCi/L 6.32E+04 5.99E+04 1.06 Agreement 3 pCi/L 6.31E+04 5.99E+04 1.05 Agreement Co-58 3 pCi/L 6.89E+04 6.89E+04 1.00 Agreement 3 pCi/L 6.84E+04 6.89E+04 0.99 Agreement Fe-59 3 pCi/L 8.54E+04 8.38E+04 1.02 Agreement 3 pCi/L 8.69E+04 8.38E+04 1.04 Agreement Co-60 3 pCi/L 1.28E+05 1.22E+05 1.05 Agreement 3 pCi/L 1.27E+05 1.22E+05 1.04 Agreement Zn-65 3 pCi/L 3.42E+04 3.12E+04 1.10 Agreement 3 pCi/L 3.45E+04 3.12E+04 1.11 Agreement Cs-134 3 pCi/L 6.39E+04 6.53E+04 0.98 Agreement 3 pCi/L 6.17E+04 6.53E+04 0.95 Agreement Cs-137 3 pCi/L 8.11E+04 7.87E+04 1.03 Agreement 3 pCi/L 8.08E+04 7.87E+04 1.03 Agreement Ce-141 3 pCi/L 7.39E+04 7.65E+04 0.97 Agreement 3 pCi/L 7.36E+04 7.65E+04 0.96 Agreement Section 4 - Page 5

TABLE 4.0-B ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM 2014 Cross Check Results for EnRad Laboratories Cross check samples are received, prepared, and analyzed in all four quarters of 2014. 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). Fifty environmental results were reported, of which 49 (98%) met the acceptance criteria based on IP 84750.

EnRad EZA EnRad/EZA Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Beta Filter in E10901 Gross Beta 2 pCi 201 199 1.01 Agreement Planchet Gamma in Soil E10904 Ce-141 2 pCi/g 0.23 0.24 0.96 Agreement Cr-51 2 pCi/g 0.48 0.49 0.98 Agreement Cs-134 2 pCi/g 0.24 0.32 0.76 Non-Agreement*

Cs-137 2 pCi/g 0.27 0.31 0.86 Agreement Co-58 2 pCi/g 0.18 0.22 0.83 Agreement Mn-54 2 pCi/g 0.29 0.3 0.96 Agreement Fe-59 2 pCi/g 0.2 0.2 1.01 Agreement Zn-65 2 pCi/g 0.49 0.49 1.00 Agreement Co-60 2 pCi/g 0.41 0.44 0.94 Agreement I-131 in Milk E10801 I-131 1 pCi/L 93.8 99.8 0.94 Agreement Gross Beta in E10905 Gross Beta 2 pCi/L 265 249 1.06 Agreement Water I-131 Charcoal E10802 I-131 1 pCi 76.1 75.1 1.01 Agreement Cartridge Gamma in E10902 Ce-141 2 pCi/g 0.22 0.24 0.91 Agreement Vegetation (Coffee Cr-51 2 pCi/g 0.42 0.5 0.85 Agreement Grounds)

Cs-134 2 pCi/g 0.28 0.32 0.88 Agreement Cs-137 2 pCi/g 0.22 0.24 0.94 Agreement Co-58 2 pCi/g 0.21 0.22 0.96 Agreement Mn-54 2 pCi/g 0.28 0.3 0.92 Agreement Fe-59 2 pCi/g 0.19 0.2 0.95 Agreement Zn-65 2 pCi/g 0.44 0.49 0.89 Agreement Co-60 2 pCi/g 0.38 0.44 0.87 Agreement

See PIP G-14-01710 or CR # 707720 Section 4 - Page 6

TABLE 4.0-B (Cont.)

EnRad EZA EnRad/EZA Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Gamma in E10987 Ce-141 3 pCi 64.1 62.6 1.02 Agreement Composite Filter Cr-51 3 pCi 135 143 0.94 Agreement Cs-134 3 pCi 74.6 78.3 0.95 Agreement Cs-137 3 pCi 97.8 95.9 1.02 Agreement Co-58 3 pCi 71.7 71 1.01 Agreement Mn-54 3 pCi 69.5 70.4 0.99 Agreement Fe-59 3 pCi 86.8 78.4 1.11 Agreement Zn-65 3 pCi 37 36.2 1.02 Agreement Co-60 3 pCi 161 148 1.09 Agreement Gamma in Milk E10800 I-131 1 pCi/L 97.3 98.5 0.99 Agreement Ce-141 1 pCi/L 120 119 1.01 Agreement Cr-51 1 pCi/L 505 491 1.03 Agreement Cs-134 1 pCi/L 192 210 0.92 Agreement Cs-137 1 pCi/L 255 253 1.01 Agreement Co-58 1 pCi/L 274 268 1.02 Agreement Mn-54 1 pCi/L 314 297 1.06 Agreement Fe-59 1 pCi/L 232 219 1.06 Agreement Zn-65 1 pCi/L 318 323 0.99 Agreement Co-60 1 pCi/L 335 337 0.99 Agreement Gamma in Soil E11051 Ce-141 4 pCi/g 0.31 0.35 0.89 Agreement Cr-51 4 pCi/g 0.61 0.648 0.94 Agreement Cs-134 4 pCi/g 0.25 0.263 0.95 Agreement Cs-137 4 pCi/g 0.36 0.396 0.91 Agreement Co-58 4 pCi/g 0.19 0.208 0.91 Agreement Mn-54 4 pCi/g 0.35 0.36 0.97 Agreement Fe-59 4 pCi/g 0.27 0.279 0.97 Agreement Zn-65 4 pCi/g 0.46 0.474 0.97 Agreement Co-60 4 pCi/g 0.34 0.375 0.91 Agreement Section 4 - Page 7

TABLE 4.0-C ENVIRONMENTAL RESOURCE ASSOCIATES (ERA)

PROFICIENCY TESTING 2014 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 2014. 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 Gamma Emitters in RAD-97 Ba-133 2 pCi/L 87.51 87.9 74.0 - 96.7 Agreement Water Cs-134 2 pCi/L 41.01 44.3 35.5 - 48.7 Agreement Cs-137 2 pCi/L 85.47 89.1 80.2 - 101 Agreement Co-60 2 pCi/L 62.75 64.2 57.8 - 73.1 Agreement Zn-65 2 pCi/L 249.8 235 212 - 275 Agreement Gamma Emitters in RAD-99 Ba-133 4 pCi/L 46.9 49.1 40.3 - 54.5 Agreement Water Cs-134 4 pCi/L 81.7 89.8 73.7 - 98.8 Agreement Cs-137 4 pCi/L 96.9 98.8 88.9 - 111 Agreement Co-60 4 pCi/L 91 92.1 82.9 - 104 Agreement Zn-65 4 pCi/L 335 310 279 - 362 Agreement Tritium in Water RAD-97 H-3 2 pCi/L 8680 8770 7610 - 9650 Agreement RAD-99 H-3 4 pCi/L 6290 6880 5940 - 7570 Agreement Iodine-131 in RAD-97 I-131 2 pCi/L 25.9 25.7 21.3 - 30.3 Agreement Water RAD-99 I-131 4 pCi/L 20.4 20.3 16.8 - 24.4 Agreement Section 4 - Page 8

TABLE 4.0-D 2014 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 Technology Services irradiates environmental dosimeters quarterly and sends them to the 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 2014 2nd Quarter 2014 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 102403 93.2 90.40 3.12 <+/-15% Pass 102196 18.07 18.66 -3.16 <+/-15% Pass 103045 99.3 90.40 9.87 <+/-15% Pass 102193 19.44 18.66 4.18 <+/-15% Pass 103009 101.0 90.40 11.76 <+/-15% Pass 102192 17.28 18.66 -7.40 <+/-15% Pass 102243 90.3 90.40 -0.09 <+/-15% Pass 102176 17.70 18.66 -5.14 <+/-15% Pass 102858 97.9 90.40 8.33 <+/-15% Pass 102175 18.66 18.66 0.00 <+/-15% Pass Average Bias (B) 6.60 Average Bias (B) -2.30 Standard Deviation (S) 4.93 Standard Deviation (S) 4.53 Measure Performance lBl+S 11.53 <15% Pass Measure Performance lBl+S 6.83 <15% Pass 3rd Quarter 2014 4th Quarter 2014 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 103705 70.04 69.7 0.49 <+/-15% Pass 101241 84.63 77.7 8.92 <+/-15% Pass 103704 69.36 69.7 -0.49 <+/-15% Pass 103494 87.46 77.7 12.56 <+/-15% Pass 103686 71.90 69.7 3.16 <+/-15% Pass 103229 88.45 77.7 13.84 <+/-15% Pass 103685 72.82 69.7 4.48 <+/-15% Pass 103493 89.19 77.7 14.79 <+/-15% Pass 103517 73.71 69.7 5.75 <+/-15% Pass 103044 91.02 77.7 17.14 <+/-15% **Fail Average Bias (B) 2.68 Average Bias (B) 13.45 Standard Deviation (S) 2.63 Standard Deviation (S) 3.04 Measure Performance lBl+S 5.31 <15% Pass Measure Performance lBl+S 16.49 <15% **Fail

- Refer to PIP G-15-00554 Section 4 - Page 9

TABLE 4.0-D (Cont.)

Internal Crosscheck (Duke Energy)

Radiation Dosimetry and Records participates in a quarterly TLD intracomparison program administered internally by the Dosimetry Lab. The Dosimetry Lab Staff irradiates environmental dosimeters quarterly and submits them for analysis of the unknown estimated delivered exposure.

1st Quarter 2014 2nd Quarter 2014 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 101221 30.14 32.7 -7.83 <+/-15% Pass 103635 22.36 21.8 2.57 <+/-15% Pass 102801 32.82 32.7 0.37 <+/-15% Pass 102777 22.93 21.8 5.18 <+/-15% Pass 100019 30.32 32.7 -7.28 <+/-15% Pass 103181 22.78 21.8 4.50 <+/-15% Pass 103173 32.14 32.7 -1.71 <+/-15% Pass 103218 22.82 21.8 4.68 <+/-15% Pass 100085 30.90 32.7 -5.50 <+/-15% Pass 103657 22.29 21.8 2.25 <+/-15% Pass 101024 30.92 32.7 -5.44 <+/-15% Pass 102927 21.90 21.8 0.46 <+/-15% Pass 100350 30.73 32.7 -6.02 <+/-15% Pass 103396 21.54 21.8 -1.19 <+/-15% Pass 102359 30.71 32.7 -6.09 <+/-15% Pass 102723 22.84 21.8 4.77 <+/-15% Pass 103174 30.26 32.7 -7.46 <+/-15% Pass 103394 22.47 21.8 3.07 <+/-15% Pass 101376 31.49 32.7 -3.70 <+/-15% Pass 103058 22.36 21.8 2.57 <+/-15% Pass Average Bias (B) -5.07 Average Bias (B) 2.89 Standard Deviation (S) 2.65 Standard Deviation (S) 2.05 Measure Performance lBl+S 7.72 <15% Pass Measure Performance lBl+S 4.93 <15% Pass 3rd Quarter 2014 4th Quarter 2014 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 102737 47.05 43.6 7.91 <+/-15% Pass 102768 57.48 54.5 5.47 <+/-15% Pass 102750 46.06 43.6 5.64 <+/-15% Pass 103263 55.38 54.5 1.61 <+/-15% Pass 102773 48.32 43.6 10.83 <+/-15% Pass 103453 56.30 54.5 3.30 <+/-15% Pass 102824 45.81 43.6 5.07 <+/-15% Pass 102746 54.25 54.5 -0.46 <+/-15% Pass 102397 44.38 43.6 1.79 <+/-15% Pass 103656 56.09 54.5 2.92 <+/-15% Pass 102832 46.37 43.6 6.35 <+/-15% Pass 102482 53.50 54.5 -1.83 <+/-15% Pass 102725 47.00 43.6 7.80 <+/-15% Pass 103446 54.71 54.5 0.39 <+/-15% Pass 102481 45.21 43.6 3.69 <+/-15% Pass 103339 53.55 54.5 -1.74 <+/-15% Pass 102758 45.97 43.6 5.44 <+/-15% Pass 103582 53.97 54.5 -0.97 <+/-15% Pass 103120 46.87 43.6 7.50 <+/-15% Pass 103288 55.43 54.5 1.71 <+/-15% Pass Average Bias (B) 6.20 Average Bias (B) 1.04 Standard Deviation (S) 2.51 Standard Deviation (S) 2.40 Measure Performance lBl+S 8.71 <15% Pass Measure Performance lBl+S 3.44 <15% Pass Section 4 - Page 10

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 Harris Nuclear Plant (HNP) was required to ensure compliance with provisions of the Nuclear Regulatory Commissions Regulatory Guide 4.8, Harris Nuclear Plant Technical Specifications, and the Harris Nuclear Plant Offsite Dose Calculation Manual (ODCM). Analytical procedures were employed to ensure that the ODCM detection capabilities were achieved.

Environmental sampling and analyses were performed by EnRad Laboratories, Dosimetry and Records, Fisheries, and Aquatic Ecology.

This appendix describes the environmental sampling frequencies and analysis procedures by media type.

I. CHANGE OF SAMPLING PROCEDURES Control location 97 (Food Product - Granite Springs Farm, Pittsboro in the NW Sector) was added to the HNP ODCM per Revision 25 in November 2014; however, sampling actually began in July 2014 during the growing season. This control was added to the REMP when it was determined that the current Food Product Control location #5 was not going to be able supply the REMP with adequate samples to meet our requirements.

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, food products, aquatic vegetation, and broadleaf vegetation are ground to achieve a homogeneous mixture. Soils and sediments are dried, sifted to remove foreign objects (rocks, clams, glass, etc.), and then transferred to an appropriate counting geometry.

Low-level iodine analyses are performed by passing a designated sample aliquot through a pre-weighed amount of ion exchange resin to remove and concentrate any iodine in the aqueous sample (milk and water). The resin is then dried, mixed thoroughly, and a net resin weight determined before being transferred to an appropriate counting geometry and analyzed by gamma spectroscopy.

Appendix A - Page 2

Tritium analyses are performed monthly by using low-level environmental liquid scintillation analysis technique on a Packard 2550 liquid scintillation system or Perkin-Elmer 2900TR liquid scintillation system. Tritium samples are distilled and batch processed with a tritium spike and blank to verify instrument performance and sample preparation technique are acceptable.

Gross beta analysis is performed monthly by concentrating a designated aliquot of sample precipitate and analyzing it by Tennelec XLB Series 5 gas-flow proportional counters. Samples are batch processed with a blank to ensure sample contamination has not occurred.

III. CHANGE OF ANALYSIS PROCEDURES REMP analytical results reporting with 2 Sigma error was initiated during 2014, replacing the 1 Sigma error reporting (CR # 706771).

Low-level Iodine-131 (LLI-131) test components were modified to include only the LLI-131 component; all other components such as Berrylium-7 and Potassium-40 were removed (CR # 707736).

Gamma spectroscopy milk Iodine-131 MDA requirement was removed from the GAMMAMILK analysis as the required low-level Iodine-131 (LLI-131) requirement is satisfied by the GAMMALLI LLI-131 preparation and testing procedure and gamma spectroscopy analysis (CR # 721898).

The gamma spectroscopy system was replaced during 2014 (10JUL2014). Gamma spectroscopy system hardware, detector cooling apparatus, software, electronics, nuclide identification libraries, and analytical test matrix components for test matrices were modified (CR # 739995).

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 REMP monitoring prior to 2014. This change was a merger initiative in order to achieve fleet standardization of the TLD program.

IV. SAMPLING AND ANALYSIS PROCEDURES A.1 AIRBORNE PARTICULATE AND RADIOIODINE Airborne particulate and radioiodine samples at each of nine 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 sampler. The samplers are designed to operate at a constant flow rate (in order to compensate for any filter Appendix A - Page 3

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 filter samples for gamma analysis. The continuous composite samples were collected from the locations listed below.

Location 1 = 2.6 miles N Location 2 = 1.4 miles NNE Location 4 = 3.1 miles NNE Location 5 = >12 miles WNW - Pittsboro (Control)

Location 26 = 4.7 miles S Location 47 = 3.4 miles SSW Location 63 = 0.6 miles SW Location 90 = 0.5 miles SSW Location 91 = 1.6 miles ENE A.2 DRINKING WATER Weekly composite drinking water samples were collected from three locations, with aliquots going to biweekly and monthly composite samples. A low-level Iodine-131 analysis was performed on biweekly composites. Gross beta, tritium, and gamma analyses were performed on the monthly composites. The composites are collected from the locations listed below.

Location 38 = 6.2 miles WSW (Control)

Location 40 = 17.2 miles SSE Lillington Location 51 = Water Treatment Building (on Site)

A.3 SURFACE WATER Weekly composite surface water samples were collected from three locations, with aliquots going to biweekly and monthly composite samples. A low-level Iodine-131 analysis was performed on the biweekly composites. Gross beta, tritium, and gamma analyses were performed on the monthly composites. The composites are collected from the locations listed below.

Location 26 = 4.7 miles S Location 38 = 6.2 miles WSW (Control)

Location 40 = 17.2 miles SSE Lillington Appendix A - Page 4

A.4 GROUND WATER Grab samples were collected quarterly from ground water wells at nineteen (19) locations. A gamma analysis and tritium analysis were performed on each sample. The samples were collected from the locations listed below.

Location 57 = 0.4 miles SSW Location 59 = 0.5 miles NNE Location 60 = 0.5 miles ESE Location 68 = 0.2 miles W Location 69 = 0.2 miles NNE Location 70 = 0.4 miles E Location 71 = 0.3 miles SE Location 72 = 0.2 miles SE Location 73 = 0.2 miles S Location 74 = 0.2 miles SSE Location 75 = 0.1 miles ESE Location 76 = 0.1 miles S Location 77 = 0.4 miles S Location 78 = 0.5 miles S Location 79 = 0.5 miles S Location 80 = 0.6 miles S Location 81 = 0.6 miles S Location 82 = 0.6 miles S Location 83 = 1.6 miles SSW A.5 MILK Monthly grab samples were collected at one location. A gamma and low-level Iodine-131 analysis was performed on each sample. The monthly grab samples were collected from the location listed below.

Location 5 = Manco Dairy - >12 miles WNW (Control)

A.6 BROADLEAF VEGETATION Monthly samples, three different species, were collected at each of three locations during the growing season, May through October. A gamma analysis was performed on each sample. The samples were collected from the locations listed below.

Location 5 = >12 miles NNW - Pittsboro (Control)

Location 12 = 0.9 miles SSW Location 63 = 0.6 miles SW Appendix A - Page 5

A.7 FOOD PRODUCTS Monthly samples, of three different types of broadleaf vegetation, were collected when available during the growing season at two locations. A gamma analysis was performed on each sample. The samples were collected from the location listed below.

Location 5 = >12 miles WNW - Pittsboro (Control)

Location 97 = 19.1 miles NW - Granite Springs Farm (Control)

A.8 AQUATIC VEGETATION Annual samples were collected at each of the three locations. A gamma analysis was performed on each sample. The samples were collected from the locations listed below.

Location 26 = 4.7 miles S Location 41 = 3.8 miles S Location 61 = 2.5 miles E (Control)

A.9 FISH Semiannual samples of bottom feeders (catfish) and free swimmers (sunfish and largemouth bass) were collected at each of two locations. A gamma analysis was performed on the edible portions of each sample. The samples were collected from the locations listed below.

Location 44 = Site varies in Harris Lake Location 45 = Site varies in Cape Fear River above Buckhorn Dam (Control)

A.10 SHORELINE SEDIMENT Semiannual samples were collected at each of two locations. A gamma analysis was performed on each sample following the drying and removal of rocks and clams. The samples were collected from the locations listed below.

Location 26 = 4.6 miles S Location 41 = 3.8 miles S Appendix A - Page 6

A.11 BOTTOM SEDIMENT Semiannual samples were collected from the one location. A gamma analysis was performed on each sample following the drying; the removal of rocks, clams, etc.; and grinding. The samples were collected from the location listed below.

Location 52 = 3.8 miles S A.12 DIRECT GAMMA RADIATION (TLD)

Thermoluminescent dosimeters (TLD) were collected quarterly at forty-four locations. 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 21 TLDs, one in each meteorological sector in the general area of the site boundary.

An outer ring of 16 TLDs, one in each meteorological sector in the 6 to 8 kilometer range.

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

A.13 ANNUAL LAND USE CENSUS An Annual Land Use Census was conducted to identify within a distance of 8 kilometers (5.0 miles) 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 vegetables

The Nearest Milk-giving Animal (cow, goat, etc.)

The Nearest Meat Animal (beef, hogs, chickens, etc.)

The census was conducted during the growing season from 8/26 - 8/27/2014.

Results are shown in Table 3.12.3. No changes were made to the sampling procedures during 2014 as a result of the 2014 census.

Appendix A - Page 7

APPENDIX B RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

OF RESULTS 2014 Appendix B - Page 1

HARRIS NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

Shearon Harris Nuclear Power Plant Docket Numbers: STN 50-400 Wake County, North Carolina Calendar Year: 2014 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. # 5 Air Particulate Gross Beta See Table 2.2-C 1.82E-2 (416/416) Loc. # 90 1.86E-2 (52/52) 1.82E-2 (52/52) 0 (pCi/m3) 468(4) 6.02E 4.11E-2 0.5 miles SSW 7.24E 3.27E-2 9.73E 3.32E-2 Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 36 Air Radioiodine I-131 See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/m3) 468(4)

I-131 See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 78 Loc. # 40 Loc. # 38 Drinking Water(4)(8) Gross Beta 4 2.95E+0 (26/26) Lillington 3.56E+0 (13/13) 4.06E+0 (13/13) 0 (pCi/l) 39 9.35E 6.60E+0 Cape Fear River 1.82E+0 - 6.60E+0 1.70E+0 - 1.07E+1 17.2 miles SSE Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 39 Loc. # 51 Tritium(5) 2000(7) 4.83E+3 (13/26) Water Treatment 4.83E+3 (13/13) All less than LLD 0 39 3.57E+3 - 7.17E+3 Building on Site 3.57E+3 - 7.17E+3 I-131 See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 78 Loc. # 26 Loc. # 38 Surface Water(4) Gross Beta 4 3.92E+0 (26/26) Harris Lake Spillway 4.27E+0 (13/13) 4.06E+0 (13/13) 0 (pCi/l) 39 1.82E+0 - 6.60E+0 4.7 miles S 3.35E+0 - 5.50E+0 1.70E+0 - 1.07E+1 Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 39 Loc. # 26 Tritium 2000(7) 5.44E+3 (13/26) Harris Lake Spillway 5.44E+3 (13/13) All less than LLD 0 39 3.68E+3 - 8.79E+3 4.7 miles S 3.68E+3 - 8.79E+3 Appendix B - Page 2

HARRIS NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

(cont.)

Shearon Harris Nuclear Power Plant Docket Numbers: STN 50-400 Wake County, North Carolina Calendar Year: 2014 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.

Ground Water Gamma See Table 2.2-C All less than LLD ----- ----- No Control 0 (pCi/l) 76 Loc. # 83 Tritium 2000(7) 6.04E+2 (27/76) On Site (BD-MW16) 1.65E+3 (4/4) No Control 0 76 2.02E+2 - 1.71E+3 along Cooling Tower 1.54E+3 - 1.71E+3 Blowdown line 1.6 miles SSW Milk I-131 See Table 2.2-C ----- ----- ----- All less than LLD 0 (pCi/l) 12 Gamma See Table 2.2-C ----- ----- ----- All less than LLD 0 12 Broadleaf Vegetation Gamma See Table 2.2-C 4.77E+0 (1/36) Loc. # 12 4.77E+0 (1/18) Loc. # 5 0 (pCi/kg, wet) 54(4) Single Value 0.9 miles SSW Single Value 2.20E+1 (1/18)

Cs-137 Single Value Food Products/Crops Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 19(4)

Aquatic Vegetation Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 3 Fish Bottom-Feeders Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 4 Fish Free-Swimmers Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 8 Sediments -- Shoreline Gamma See Table 2.2-C All less than LLD ----- ----- No Control 0 (pCi/kg, dry) 4 Appendix B - Page 3

HARRIS NUCLEAR PLANT RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

(cont.)

Shearon Harris Nuclear Plant Docket Numbers: STN 50-400 Wake County, North Carolina Calendar Year: 2014 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.

Sediments -- Bottom Gamma See Table 2.2-C 2.01E+1 (1/2) Loc. # 52 2.01E+1 (1/2) 0 (pCi/kg, dry) 2 Single Value Harris Lake Cooling Single Value No Control Co-58 Tower Mixing Zone 3.8 miles S Co-60 See Table 2.2-C 4.31E+2 (2/2) Loc. # 52 4.31E+2 (2/2) 0 7.68E+1 - 7.86E+2 Harris Lake Cooling 7.68E+1 - 7.86E+2 No Control Tower Mixing Zone 3.8 miles S Cs-137 See Table 2.2-C 1.26E+2 (2/2) Loc. # 52 1.26E+2 (2/2) 0 3.39E+1 - 2.18E+2 Harris Lake Cooling 3.39E+1 - 2.18E+2 No Control Tower Mixing Zone 3.8 miles S Direct Radiation (TLD) TLD Readout ----- 1.46E+1 (169/169) Loc. # 49 1.86E+1 (4/4) Loc. # 5 0 (mR per quarter)(6) 173(4) 9.12E+0 - 2.43E+1 2.5 miles NE 1.64E+1 - 2.22E+1 1.82E+1 (4/4) 1.66E+1 - 2.05E+1 Appendix B - Page 4

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. Although quarterly composite samples are required, monthly composite samples are used to provide more frequent and sensitive analyses.

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 and result values with the NC Division of Radiation Protection (NCDRP) Laboratory.

8. Drinking Water 51 (DW-51) has been included, as of 2009, in the Data Summary even though it does not meet the EPA (Environmental Protection Agency) definition of a public drinking water supply.

Appendix B - Page 5

APPENDIX C SAMPLING DEVIATIONS UNAVAILABLE ANALYSES Appendix C - Page 1

APPENDIX C HARRIS NUCLEAR PLANT SAMPLING DEVIATIONS & UNAVAILABLE ANALYSES DEVIATIONS & UNAVAILABLE REASON CODES BF Blown Fuse PI Power Interrupt SM Motor / Rotor Seized FZ Sample Frozen PM Preventative Maintenance TF Torn Filter IW Inclement Weather PO Power Outage VN Vandalism LC Line Clog to Sampler PS Power out of service / Undergoing Repair CN Construction OT Other SL Sample Loss / Lost due to Lab Accident SU Seasonal Unavailability C.1 SAMPLING DEVIATIONS Air Particulate and Air Radioiodines Any REMP weekly air samples (Air Cartridge - AC or Air Radioiodine - AR) 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 99.8% availability in 2014.

Scheduled Description & Corrective Location Collection Dates Code Action to Prevent Recurrence Action 26 12/30/13 - 1/6/14 PI 5.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months of downtime due to high winds. CR # 651081 47 12/30/13 - 1/6/14 PI 5.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months of downtime due to high winds. CR # 654084 1 1/6/14 - 1/13/14 PI 10.67 hours7.75463e-4 days 0.0186 hours 1.107804e-4 weeks 2.54935e-5 months of downtime due to severe thunderstorms with CR # 655586 high winds and tornado warnings.

4 1/6/14 - 1/13/14 PI 18.88 hours0.00102 days 0.0244 hours 1.455026e-4 weeks 3.3484e-5 months of downtime due to severe thunderstorms with CR # 655598 high winds and tornado warnings.

26 1/6/14 - 1/13/14 PI 21.32 hours3.703704e-4 days 0.00889 hours 5.291005e-5 weeks 1.2176e-5 months of downtime due to severe thunderstorms with CR # 655600 high winds and tornado warnings.

47 1/6/14 - 1/13/14 PI 21.32 hours3.703704e-4 days 0.00889 hours 5.291005e-5 weeks 1.2176e-5 months of downtime due to severe thunderstorms with CR # 655601 high winds and tornado warnings.

1 2/10/14 - 2/17/14 PI 3.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months of downtime due to snowstorm with ice. CR # 669803 4 2/10/14 - 2/17/14 PI 3.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months of downtime due to snowstorm with ice. CR # 669804 63 5/12/14 - 5/19/14 PI 4.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months of downtime due to severe thunderstorms with high CR # 688577 winds.

90 5/12/14 - 5/19/14 PI 4.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months of downtime due to severe thunderstorms with high CR # 688583 winds.

91 5/19/14 - 5/27/14 PO 72.03 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months of downtime due to a tripped breaker. CR # 689793 5 7/7/14 - 7/14/14 PI 0.51 hours5.902778e-4 days 0.0142 hours 8.43254e-5 weeks 1.94055e-5 months of downtime due to thunderstorms in the area. CR # 699420 5 7/14/14 - 7/21/14 PI 0.65 hours7.523148e-4 days 0.0181 hours 1.074735e-4 weeks 2.47325e-5 months of downtime due to thunderstorms in the area. CR # 699436 91 7/21/14 - 7/28/14 PI 2.57 hours6.597222e-4 days 0.0158 hours 9.424603e-5 weeks 2.16885e-5 months of downtime due to thunderstorms in the area. CR # 700911 5 9/2/14 - 9/8/14 PI 0.36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months of downtime due to thunderstorms in the area. CR # 707574 Appendix C - Page 2

C.2 UNAVAILABLE ANALYSES Food Products / Crops Scheduled Description & Corrective Location Collection Dates Code Action to Prevent Recurrence Action 5 January 2014 SU Seasonally unavailable - nothing planted CR # 655290 5 February 2014 SU Seasonally unavailable - nothing planted CR # 675743 5 March 2014 SU Seasonally unavailable - nothing planted CR # 675743 5 April 2014 SU Seasonally unavailable - nothing planted CR # 682350 5 May 2014 SU Seasonally unavailable due to insufficient growing time. CR # 687253 5 June 2014 SU Seasonally unavailable due to insufficient growing time. CR # 692137 5 September 2014 SU Unavailable due to crops plowed up and nothing replanted. CR # 708533 5 October 2014 SU Unavailable due to crops plowed up and nothing replanted. CR # 713473 5 November 2014 SU Unavailable due to crops plowed up and nothing replanted. CR # 708037 5 December SU Unavailable due to crops plowed up and nothing replanted. CR # 723991 97 September 2014 SU 1 out of 3 food products / crops was unavailable for sampling. CR # 708534 Milk / Broadleaf Vegetation Scheduled Description & Corrective Location Collection Dates Code Action to Prevent Recurrence Action 96 1/1/14 - 12/31/14 OT Humbug Farm (Goats) ceased operation in 2013 - No Milk CR # 604191 samples have been collected since the operation was ceased.

TLD Scheduled Description & Corrective Location Collection Dates Code Action to Prevent Recurrence Action 27 1/9/14 - 4/9/14 CN TLD missing in field due to tree removal in area near right-of- CR # 681321 (1st Qtr. 2014) way clean-up.

35 4/9/14 - 7/9/14 VN TLD was missing in the field due to vandalism. CR # 697384 (2nd Qtr. 2014) 34 10/8/14 - 1/7/15 VN TLD was missing in the field due to vandalism. CR # 726446 (4th Qtr. 2014)

Appendix C - Page 3

APPENDIX D ANALYTICAL DEVIATIONS Appendix D - Page 1

APPENDIX D HARRIS NUCLEAR PLANT ANALYTICAL DEVIATIONS No Analytical deviations were incurred for the 2014 HNP Radiological Environmental Monitoring Program.

Appendix D - Page 2

APPENDIX E RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM RESULTS 2014 This appendix includes sample analysis report summaries and supportive data generated from each sample medium for 2014.

Appendix E - Page 1

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 280668 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.44E-02 2.36E-03 6.65E-03 Sample ID: 280841 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.81E-02 2.63E-03 7.18E-03 Sample ID: 281200 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.29E-02 2.36E-03 6.76E-03 Sample ID: 281521 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.58E-02 2.38E-03 6.52E-03 Sample ID: 282144 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.63E-02 2.43E-03 6.67E-03 Sample ID: 282956 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.20E-02 1.27E-03 3.12E-03 Sample ID: 283403 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.32E-02 1.55E-03 3.27E-03 Sample ID: 284570 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.70E-02 1.44E-03 3.37E-03 Sample ID: 285131 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.25E-02 1.51E-03 3.08E-03 Sample ID: 285736 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.73E-02 1.36E-03 2.93E-03 Sample ID: 286240 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.36E-03 3.04E-03 Sample ID: 287125 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 6.02E-03 1.12E-03 3.23E-03 Sample ID: 288376 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.46E-02 1.33E-03 3.11E-03 Sample ID: 289017 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.55E-04 0.00E+00 3.55E-04 Cs-137 <3.88E-04 0.00E+00 3.88E-04 Be-7 1.24E-01 7.07E-03 6.16E-03 K-40 1.49E-02 2.39E-03 4.62E-03 Sample ID: 289100 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.71E-02 1.42E-03 3.23E-03 Sample ID: 289486 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.65E-02 1.39E-03 3.15E-03 Sample ID: 289896 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.91E-02 1.41E-03 2.99E-03 Sample ID: 291501 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.90E-02 1.38E-03 2.80E-03 Sample ID: 292795 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.05E-02 1.16E-03 2.81E-03 Sample ID: 293057 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.32E-02 1.55E-03 3.16E-03 Sample ID: 294688 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.10E-02 1.46E-03 3.00E-03 Sample ID: 295197 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.75E-02 1.25E-03 2.59E-03 Sample ID: 295458 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.59E-02 1.50E-03 3.54E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 2 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 295973 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.61E-02 1.40E-03 3.26E-03 Sample ID: 296218 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.65E-02 1.33E-03 2.87E-03 Sample ID: 296739 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.92E-02 1.44E-03 3.10E-03 Sample ID: 296966 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.34E-02 1.33E-03 3.24E-03 Sample ID: 297281 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <5.51E-04 0.00E+00 5.51E-04 Cs-137 <6.83E-04 0.00E+00 6.83E-04 Be-7 1.35E-01 2.62E-02 2.16E-02 K-40 1.97E-02 1.06E-02 1.34E-02 Sample ID: 297363 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.68E-02 2.64E-03 2.92E-03 Sample ID: 297651 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.83E-02 2.76E-03 3.04E-03 Sample ID: 298187 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.60E-02 2.56E-03 2.80E-03 Sample ID: 350170 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 2.67E-03 3.05E-03 Sample ID: 350911 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.26E-02 2.36E-03 2.73E-03 Sample ID: 351157 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.89E-02 3.07E-03 2.55E-03 Sample ID: 351523 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.04E-02 2.82E-03 2.94E-03 Sample ID: 353386 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.93E-02 2.82E-03 3.07E-03 Sample ID: 353957 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.99E-02 2.43E-03 2.20E-03 Sample ID: 354403 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.07E-02 2.71E-03 3.60E-03 Sample ID: 354714 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 8.61E-03 2.19E-03 2.89E-03 Sample ID: 355073 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.15E-02 3.33E-03 3.09E-03 Sample ID: 355579 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.32E-02 2.40E-03 2.76E-03 Sample ID: 355588 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <1.79E-04 0.00E+00 1.79E-04 Cs-137 <6.84E-04 0.00E+00 6.84E-04 Be-7 1.07E-01 2.18E-02 1.50E-02 K-40 1.27E-02 7.36E-03 6.72E-03 Sample ID: 356428 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.71E-02 3.07E-03 2.85E-03 Sample ID: 356996 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.30E-02 3.00E-03 3.13E-03 Sample ID: 357992 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.53E-02 2.47E-03 2.68E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 3 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 358613 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.52E-02 2.52E-03 2.81E-03 Sample ID: 359216 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.21E-02 2.95E-03 3.11E-03 Sample ID: 359978 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.33E-02 2.96E-03 2.98E-03 Sample ID: 360665 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.22E-02 2.98E-03 3.20E-03 Sample ID: 361531 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.68E-02 3.10E-03 2.99E-03 Sample ID: 361915 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.68E-02 2.64E-03 2.95E-03 Sample ID: 362731 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.07E-02 2.80E-03 2.98E-03 Sample ID: 363476 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.93E-02 2.74E-03 2.87E-03 Sample ID: 363927 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.18E-02 2.92E-03 3.07E-03 Sample ID: 364449 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.42E-02 2.52E-03 2.94E-03 Sample ID: 364458 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <7.20E-04 0.00E+00 7.20E-04 Cs-137 <7.50E-04 0.00E+00 7.50E-04 Be-7 1.02E-01 2.21E-02 2.00E-02 K-40 <2.00E-02 0.00E+00 2.00E-02 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 280669 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.27E-02 2.34E-03 6.73E-03 Sample ID: 280842 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.97E-02 2.56E-03 6.79E-03 Sample ID: 281201 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.20E-02 2.31E-03 6.68E-03 Sample ID: 281522 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.81E-02 2.43E-03 6.45E-03 Sample ID: 282145 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.46E-02 2.36E-03 6.60E-03 Sample ID: 282957 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.29E-02 1.20E-03 2.84E-03 Sample ID: 283404 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.87E-02 1.45E-03 3.27E-03 Sample ID: 284571 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 1.43E-03 3.37E-03 Sample ID: 285132 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.53E-02 1.57E-03 3.08E-03 Sample ID: 285737 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.56E-02 1.32E-03 2.93E-03 Sample ID: 286241 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.72E-02 1.38E-03 3.05E-03 Sample ID: 287126 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.23E-02 1.30E-03 3.24E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 4 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 288377 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.35E-02 1.30E-03 3.11E-03 Sample ID: 289053 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.25E-04 0.00E+00 3.25E-04 Cs-137 <3.72E-04 0.00E+00 3.72E-04 Be-7 1.34E-01 6.20E-03 6.11E-03 K-40 8.54E-03 2.50E-03 4.47E-03 Sample ID: 289101 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.51E-02 1.37E-03 3.22E-03 Sample ID: 289487 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.75E-02 1.42E-03 3.19E-03 Sample ID: 289897 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.92E-02 1.42E-03 2.99E-03 Sample ID: 291502 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.05E-02 1.42E-03 2.81E-03 Sample ID: 292796 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.66E-02 1.30E-03 2.75E-03 Sample ID: 293058 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.59E-02 1.61E-03 3.18E-03 Sample ID: 294689 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.21E-02 1.49E-03 3.01E-03 Sample ID: 295198 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.02E-02 1.32E-03 2.60E-03 Sample ID: 295459 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.19E-02 1.66E-03 3.55E-03 Sample ID: 295974 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.78E-02 1.44E-03 3.28E-03 Sample ID: 296219 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.61E-02 1.32E-03 2.87E-03 Sample ID: 296740 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.53E-02 1.38E-03 3.19E-03 Sample ID: 296967 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.72E-02 1.43E-03 3.25E-03 Sample ID: 297317 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <5.06E-04 0.00E+00 5.06E-04 Cs-137 <8.73E-04 0.00E+00 8.73E-04 Be-7 1.42E-01 3.48E-02 3.15E-02 K-40 1.04E-02 7.89E-03 4.01E-03 Sample ID: 297364 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.82E-02 2.72E-03 2.96E-03 Sample ID: 297652 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.06E-02 2.89E-03 3.07E-03 Sample ID: 298188 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.75E-02 2.63E-03 2.80E-03 Sample ID: 350171 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.50E-02 2.60E-03 3.05E-03 Sample ID: 350912 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.28E-02 2.36E-03 2.73E-03 Sample ID: 351158 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.80E-02 3.03E-03 2.55E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 5 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 351524 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.16E-02 2.87E-03 2.94E-03 Sample ID: 353387 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.89E-02 2.80E-03 3.07E-03 Sample ID: 353959 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.77E-02 2.33E-03 2.20E-03 Sample ID: 354404 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 9.20E-03 2.62E-03 3.61E-03 Sample ID: 354715 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.06E-02 2.31E-03 2.89E-03 Sample ID: 355077 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.55E-02 3.09E-03 3.09E-03 Sample ID: 355580 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.30E-02 2.39E-03 2.77E-03 Sample ID: 355589 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <6.29E-04 0.00E+00 6.29E-04 Cs-137 <7.01E-04 0.00E+00 7.01E-04 Be-7 1.11E-01 2.41E-02 2.14E-02 K-40 <1.95E-02 0.00E+00 1.95E-02 Sample ID: 356429 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.20E-02 2.86E-03 2.85E-03 Sample ID: 356997 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.16E-02 2.94E-03 3.13E-03 Sample ID: 357993 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.50E-02 2.46E-03 2.68E-03 Sample ID: 358614 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.31E-02 2.40E-03 2.81E-03 Sample ID: 359217 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.97E-02 2.84E-03 3.11E-03 Sample ID: 359979 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.09E-02 2.85E-03 2.98E-03 Sample ID: 360666 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.13E-02 2.94E-03 3.20E-03 Sample ID: 361532 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.28E-02 2.94E-03 2.99E-03 Sample ID: 361916 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.97E-02 2.78E-03 2.95E-03 Sample ID: 362732 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.70E-02 2.72E-03 3.12E-03 Sample ID: 363477 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.00E-02 2.77E-03 2.87E-03 Sample ID: 363928 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.17E-02 2.92E-03 3.06E-03 Sample ID: 364450 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.36E-02 2.48E-03 2.94E-03 Sample ID: 364459 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <7.89E-04 0.00E+00 7.89E-04 Cs-137 <6.83E-04 0.00E+00 6.83E-04 Be-7 8.62E-02 1.99E-02 1.86E-02 K-40 <1.51E-02 0.00E+00 1.51E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 6 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 280672 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.54E-02 2.26E-03 6.21E-03 Sample ID: 280845 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.91E-02 2.63E-03 7.05E-03 Sample ID: 281204 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.43E-02 2.24E-03 6.19E-03 Sample ID: 281525 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.70E-02 2.25E-03 5.97E-03 Sample ID: 282148 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.61E-02 2.26E-03 6.10E-03 Sample ID: 282960 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.24E-02 1.28E-03 3.12E-03 Sample ID: 283407 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.17E-02 1.51E-03 3.27E-03 Sample ID: 284573 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.65E-02 1.43E-03 3.37E-03 Sample ID: 285134 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.36E-02 1.54E-03 3.08E-03 Sample ID: 285739 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.00E-02 1.42E-03 2.93E-03 Sample ID: 286243 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.81E-02 1.41E-03 3.05E-03 Sample ID: 287128 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.15E-02 1.28E-03 3.24E-03 Sample ID: 288379 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.28E-02 1.28E-03 3.11E-03 Sample ID: 289009 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.90E-04 0.00E+00 3.90E-04 Cs-137 <4.20E-04 0.00E+00 4.20E-04 Be-7 1.43E-01 7.10E-03 5.93E-03 K-40 1.50E-02 2.38E-03 5.34E-03 Sample ID: 289103 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.67E-02 1.41E-03 3.22E-03 Sample ID: 289489 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.72E-02 1.41E-03 3.18E-03 Sample ID: 289899 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.77E-02 1.38E-03 2.99E-03 Sample ID: 291504 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.91E-02 1.38E-03 2.80E-03 Sample ID: 292798 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.46E-02 1.27E-03 2.82E-03 Sample ID: 293060 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.50E-02 1.58E-03 3.16E-03 Sample ID: 294691 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.12E-02 1.47E-03 3.00E-03 Sample ID: 295200 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.02E-02 1.31E-03 2.60E-03 Sample ID: 295461 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.60E-02 1.51E-03 3.55E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 7 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 295976 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.53E-02 1.39E-03 3.29E-03 Sample ID: 296221 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.81E-02 1.38E-03 2.89E-03 Sample ID: 296742 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.90E-02 1.44E-03 3.14E-03 Sample ID: 296969 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.54E-02 1.38E-03 3.25E-03 Sample ID: 297273 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <5.25E-04 0.00E+00 5.25E-04 Cs-137 <1.80E-04 0.00E+00 1.80E-04 Be-7 1.38E-01 2.90E-02 1.82E-02 K-40 <1.85E-02 0.00E+00 1.85E-02 Sample ID: 297366 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.93E-02 2.76E-03 2.93E-03 Sample ID: 297654 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.02E-02 2.85E-03 3.05E-03 Sample ID: 298190 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.56E-02 2.54E-03 2.80E-03 Sample ID: 350173 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.58E-02 2.65E-03 3.06E-03 Sample ID: 350914 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.15E-02 2.29E-03 2.73E-03 Sample ID: 351160 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.66E-02 2.97E-03 2.56E-03 Sample ID: 351526 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 2.63E-03 2.94E-03 Sample ID: 353389 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.18E-02 2.94E-03 3.08E-03 Sample ID: 353965 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.13E-02 2.50E-03 2.20E-03 Sample ID: 354406 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.01E-02 2.68E-03 3.61E-03 Sample ID: 354717 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.09E-02 2.33E-03 2.89E-03 Sample ID: 355082 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.26E-02 3.38E-03 3.10E-03 Sample ID: 355582 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.25E-02 2.36E-03 2.76E-03 Sample ID: 355591 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <1.23E-03 0.00E+00 1.23E-03 Cs-137 <5.75E-04 0.00E+00 5.75E-04 Be-7 1.12E-01 2.57E-02 2.62E-02 K-40 1.04E-02 9.92E-03 1.52E-02 Sample ID: 356431 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.61E-02 3.03E-03 2.85E-03 Sample ID: 356999 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.31E-02 3.00E-03 3.13E-03 Sample ID: 357995 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.63E-02 2.52E-03 2.68E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 8 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 358616 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.68E-02 2.60E-03 2.81E-03 Sample ID: 359220 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.25E-02 2.97E-03 3.11E-03 Sample ID: 359981 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.63E-02 3.08E-03 2.98E-03 Sample ID: 360668 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.81E-02 2.80E-03 3.20E-03 Sample ID: 361534 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.46E-02 3.02E-03 2.99E-03 Sample ID: 361918 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.66E-02 2.63E-03 2.95E-03 Sample ID: 362734 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.47E-02 3.06E-03 3.12E-03 Sample ID: 363479 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.98E-02 2.76E-03 2.87E-03 Sample ID: 363930 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.49E-02 3.05E-03 3.07E-03 Sample ID: 364452 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.60E-02 2.60E-03 2.94E-03 Sample ID: 364461 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <8.81E-04 0.00E+00 8.81E-04 Cs-137 <8.47E-04 0.00E+00 8.47E-04 Be-7 1.15E-01 2.20E-02 1.42E-02 K-40 <2.11E-02 0.00E+00 2.11E-02 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 280674 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.24E-02 2.46E-03 7.18E-03 Sample ID: 280847 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.34E-02 2.51E-03 7.22E-03 Sample ID: 281206 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.07E-02 2.40E-03 7.12E-03 Sample ID: 281527 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.73E-02 2.53E-03 6.89E-03 Sample ID: 282150 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.36E-02 2.47E-03 7.05E-03 Sample ID: 282962 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.47E-02 1.34E-03 3.13E-03 Sample ID: 283409 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.01E-02 1.48E-03 3.27E-03 Sample ID: 284575 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.49E-02 1.39E-03 3.37E-03 Sample ID: 285136 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.01E-02 1.46E-03 3.06E-03 Sample ID: 285741 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.39E-02 1.28E-03 2.95E-03 Sample ID: 286245 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.82E-02 1.41E-03 3.05E-03 Sample ID: 287130 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.15E-02 1.28E-03 3.24E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 9 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 288381 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.32E-02 1.29E-03 3.11E-03 Sample ID: 289011 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <4.55E-04 0.00E+00 4.55E-04 Cs-137 <3.60E-04 0.00E+00 3.60E-04 Be-7 1.33E-01 7.42E-03 7.65E-03 K-40 1.09E-02 2.73E-03 3.95E-03 Sample ID: 289105 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.46E-02 1.35E-03 3.22E-03 Sample ID: 289491 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.39E-03 3.19E-03 Sample ID: 289901 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.92E-02 1.43E-03 3.02E-03 Sample ID: 291506 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.93E-02 1.39E-03 2.81E-03 Sample ID: 292800 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.31E-03 2.82E-03 Sample ID: 293062 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.23E-02 1.53E-03 3.18E-03 Sample ID: 294693 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.95E-02 1.42E-03 2.99E-03 Sample ID: 295202 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.15E-02 1.34E-03 2.60E-03 Sample ID: 295463 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.65E-02 1.52E-03 3.54E-03 Sample ID: 295978 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.52E-02 1.36E-03 3.23E-03 Sample ID: 296223 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.69E-02 1.35E-03 2.89E-03 Sample ID: 296744 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.99E-02 1.46E-03 3.10E-03 Sample ID: 296971 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 1.40E-03 3.24E-03 Sample ID: 297275 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <6.40E-04 0.00E+00 6.40E-04 Cs-137 <8.73E-04 0.00E+00 8.73E-04 Be-7 1.21E-01 3.22E-02 3.03E-02 K-40 1.23E-02 9.30E-03 9.86E-03 Sample ID: 297368 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.56E-02 2.59E-03 2.93E-03 Sample ID: 297656 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.12E-02 2.84E-03 2.90E-03 Sample ID: 298192 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.29E-02 2.40E-03 2.81E-03 Sample ID: 350175 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.59E-02 2.65E-03 3.05E-03 Sample ID: 350916 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.42E-02 2.44E-03 2.73E-03 Sample ID: 351162 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.55E-02 2.91E-03 2.54E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 10 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 351528 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.03E-02 2.83E-03 2.97E-03 Sample ID: 353391 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.02E-02 2.86E-03 3.07E-03 Sample ID: 353971 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.15E-02 2.51E-03 2.20E-03 Sample ID: 354408 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.18E-02 2.76E-03 3.61E-03 Sample ID: 354719 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 9.73E-03 2.26E-03 2.89E-03 Sample ID: 355086 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.32E-02 3.40E-03 3.10E-03 Sample ID: 355584 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.15E-02 2.30E-03 2.76E-03 Sample ID: 355593 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <7.14E-04 0.00E+00 7.14E-04 Cs-137 <7.36E-04 0.00E+00 7.36E-04 Be-7 1.27E-01 2.34E-02 1.13E-02 K-40 <1.71E-02 0.00E+00 1.71E-02 Sample ID: 356434 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.87E-02 3.15E-03 2.86E-03 Sample ID: 357001 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.13E-02 2.93E-03 3.13E-03 Sample ID: 357997 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.48E-02 2.45E-03 2.68E-03 Sample ID: 358618 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.52E-02 2.53E-03 2.82E-03 Sample ID: 359224 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.51E-02 3.08E-03 3.11E-03 Sample ID: 359983 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.60E-02 3.08E-03 2.99E-03 Sample ID: 360670 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.61E-02 3.15E-03 3.20E-03 Sample ID: 361536 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.43E-02 3.00E-03 2.99E-03 Sample ID: 361920 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.89E-02 2.75E-03 2.95E-03 Sample ID: 362736 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.61E-02 3.12E-03 3.12E-03 Sample ID: 363481 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.07E-02 2.80E-03 2.87E-03 Sample ID: 363932 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.17E-02 2.91E-03 3.06E-03 Sample ID: 364454 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.90E-02 2.75E-03 2.95E-03 Sample ID: 364463 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <9.27E-04 0.00E+00 9.27E-04 Cs-137 <7.83E-04 0.00E+00 7.83E-04 Be-7 1.33E-01 2.36E-02 1.36E-02 K-40 <1.98E-02 0.00E+00 1.98E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 11 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 280670 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.31E-02 2.35E-03 6.72E-03 Sample ID: 280843 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.30E-02 2.57E-03 7.49E-03 Sample ID: 281202 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.11E-02 2.23E-03 6.48E-03 Sample ID: 281523 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.80E-02 2.37E-03 6.27E-03 Sample ID: 282146 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.09E-02 2.46E-03 6.38E-03 Sample ID: 282958 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.35E-02 1.23E-03 2.86E-03 Sample ID: 283405 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.33E-02 1.55E-03 3.26E-03 Sample ID: 284572 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.55E-02 1.40E-03 3.36E-03 Sample ID: 285133 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.90E-02 1.43E-03 3.06E-03 Sample ID: 285738 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.79E-02 1.38E-03 2.94E-03 Sample ID: 286242 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.69E-02 1.38E-03 3.05E-03 Sample ID: 287127 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.16E-02 1.27E-03 3.21E-03 Sample ID: 288378 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 1.38E-03 3.14E-03 Sample ID: 289008 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.55E-04 0.00E+00 3.55E-04 Cs-137 <5.02E-04 0.00E+00 5.02E-04 Be-7 1.28E-01 8.15E-03 8.47E-03 K-40 1.10E-02 3.53E-03 5.70E-03 Sample ID: 289102 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.66E-02 1.40E-03 3.21E-03 Sample ID: 289488 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.79E-02 1.42E-03 3.16E-03 Sample ID: 289898 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.82E-02 1.40E-03 3.01E-03 Sample ID: 291503 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.93E-02 1.38E-03 2.79E-03 Sample ID: 292797 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.67E-02 1.32E-03 2.81E-03 Sample ID: 293059 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.37E-02 1.57E-03 3.20E-03 Sample ID: 294690 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.22E-02 1.48E-03 2.97E-03 Sample ID: 295199 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.82E-02 1.27E-03 2.59E-03 Sample ID: 295460 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.70E-02 1.53E-03 3.52E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 12 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 295975 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.37E-03 3.19E-03 Sample ID: 296220 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.58E-02 1.33E-03 2.93E-03 Sample ID: 296741 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.06E-02 1.47E-03 3.10E-03 Sample ID: 296968 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.06E-02 1.49E-03 3.22E-03 Sample ID: 297272 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <5.85E-04 0.00E+00 5.85E-04 Cs-137 <6.27E-04 0.00E+00 6.27E-04 Be-7 1.54E-01 3.24E-02 3.16E-02 K-40 1.12E-02 7.86E-03 9.89E-03 Sample ID: 297365 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.71E-02 2.65E-03 2.92E-03 Sample ID: 297653 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.67E-02 2.67E-03 3.03E-03 Sample ID: 298189 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.65E-02 2.59E-03 2.82E-03 Sample ID: 350172 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.71E-02 2.70E-03 3.04E-03 Sample ID: 350913 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.36E-02 2.39E-03 2.71E-03 Sample ID: 351159 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.74E-02 2.97E-03 2.51E-03 Sample ID: 351525 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.00E-02 2.84E-03 3.00E-03 Sample ID: 353388 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.08E-02 2.89E-03 3.08E-03 Sample ID: 353961 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.95E-02 2.41E-03 2.19E-03 Sample ID: 354405 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 8.54E-03 2.59E-03 3.63E-03 Sample ID: 354716 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.08E-02 2.30E-03 2.86E-03 Sample ID: 355079 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.74E-02 3.19E-03 3.13E-03 Sample ID: 355581 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.16E-02 2.30E-03 2.75E-03 Sample ID: 355590 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <7.29E-04 0.00E+00 7.29E-04 Cs-137 <8.48E-04 0.00E+00 8.48E-04 Be-7 1.20E-01 2.41E-02 1.83E-02 K-40 1.73E-02 9.65E-03 1.11E-02 Sample ID: 356430 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.59E-02 3.02E-03 2.83E-03 Sample ID: 356998 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.46E-02 3.05E-03 3.11E-03 Sample ID: 357994 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.44E-02 2.45E-03 2.71E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 13 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 358615 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.85E-02 2.68E-03 2.80E-03 Sample ID: 359218 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.38E-02 3.02E-03 3.10E-03 Sample ID: 359980 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.41E-02 2.98E-03 2.97E-03 Sample ID: 360667 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.19E-02 2.98E-03 3.22E-03 Sample ID: 361533 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.67E-02 3.09E-03 2.98E-03 Sample ID: 361917 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.84E-02 2.72E-03 2.95E-03 Sample ID: 362733 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.20E-02 2.85E-03 2.97E-03 Sample ID: 363478 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.03E-02 2.78E-03 2.86E-03 Sample ID: 363929 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.28E-02 2.97E-03 3.07E-03 Sample ID: 364451 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.15E-02 2.37E-03 2.93E-03 Sample ID: 364460 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <5.83E-04 0.00E+00 5.83E-04 Cs-137 <5.35E-04 0.00E+00 5.35E-04 Be-7 1.06E-01 1.64E-02 9.98E-03 K-40 1.53E-02 7.47E-03 9.61E-03 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 280673 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.52E-02 2.45E-03 6.86E-03 Sample ID: 280846 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 9.65E-03 2.51E-03 7.64E-03 Sample ID: 281205 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 7.31E-03 2.15E-03 6.63E-03 Sample ID: 281526 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.52E-02 2.33E-03 6.41E-03 Sample ID: 282149 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.58E-02 2.37E-03 6.52E-03 Sample ID: 282961 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.42E-02 1.33E-03 3.14E-03 Sample ID: 283408 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.98E-02 1.47E-03 3.26E-03 Sample ID: 284574 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.06E-02 1.28E-03 3.36E-03 Sample ID: 285135 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.98E-02 1.45E-03 3.06E-03 Sample ID: 285740 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.76E-02 1.37E-03 2.94E-03 Sample ID: 286244 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.81E-02 1.41E-03 3.05E-03 Sample ID: 287129 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 9.87E-03 1.23E-03 3.21E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 14 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 288380 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.37E-02 1.31E-03 3.14E-03 Sample ID: 289010 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.70E-04 0.00E+00 3.70E-04 Cs-137 <4.35E-04 0.00E+00 4.35E-04 Be-7 1.21E-01 6.40E-03 5.95E-03 K-40 1.57E-02 2.45E-03 4.15E-03 Sample ID: 289104 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.58E-02 1.38E-03 3.20E-03 Sample ID: 289490 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 1.38E-03 3.15E-03 Sample ID: 289900 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.68E-02 1.36E-03 3.00E-03 Sample ID: 291505 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.57E-02 1.29E-03 2.78E-03 Sample ID: 292799 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.55E-02 1.29E-03 2.81E-03 Sample ID: 293061 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.40E-02 1.57E-03 3.20E-03 Sample ID: 294692 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.11E-02 1.46E-03 2.97E-03 Sample ID: 295201 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.82E-02 1.27E-03 2.60E-03 Sample ID: 295462 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 1.51E-03 3.52E-03 Sample ID: 295977 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.38E-03 3.19E-03 Sample ID: 296222 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.34E-03 2.93E-03 Sample ID: 296743 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.02E-02 1.46E-03 3.10E-03 Sample ID: 296970 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.63E-02 1.39E-03 3.22E-03 Sample ID: 297274 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <5.50E-04 0.00E+00 5.50E-04 Cs-137 <9.70E-04 0.00E+00 9.70E-04 Be-7 1.37E-01 2.80E-02 2.16E-02 K-40 8.17E-03 9.13E-03 1.45E-02 Sample ID: 297367 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.53E-02 2.56E-03 2.92E-03 Sample ID: 297655 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.81E-02 2.74E-03 3.03E-03 Sample ID: 298191 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.52E-02 2.53E-03 2.82E-03 Sample ID: 350174 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.44E-02 2.56E-03 3.04E-03 Sample ID: 350915 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.31E-02 2.37E-03 2.71E-03 Sample ID: 351161 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.49E-02 2.86E-03 2.49E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 15 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 351527 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.84E-02 2.77E-03 3.00E-03 Sample ID: 353390 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.01E-02 2.86E-03 3.09E-03 Sample ID: 353968 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.94E-02 2.40E-03 2.19E-03 Sample ID: 354407 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.16E-02 2.77E-03 3.63E-03 Sample ID: 354718 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.08E-02 2.30E-03 2.86E-03 Sample ID: 355084 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.65E-02 3.15E-03 3.13E-03 Sample ID: 355583 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.43E-02 2.44E-03 2.75E-03 Sample ID: 355592 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <7.29E-04 0.00E+00 7.29E-04 Cs-137 <7.01E-04 0.00E+00 7.01E-04 Be-7 8.99E-02 2.43E-02 2.80E-02 K-40 <1.66E-02 0.00E+00 1.66E-02 Sample ID: 356432 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.43E-02 2.94E-03 2.83E-03 Sample ID: 357000 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.39E-02 3.02E-03 3.11E-03 Sample ID: 357996 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.47E-02 2.46E-03 2.71E-03 Sample ID: 358617 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 2.57E-03 2.81E-03 Sample ID: 359222 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.30E-02 2.98E-03 3.11E-03 Sample ID: 359982 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.07E-02 2.84E-03 2.97E-03 Sample ID: 360669 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.09E-02 2.94E-03 3.22E-03 Sample ID: 361535 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.35E-02 2.96E-03 2.98E-03 Sample ID: 361919 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.78E-02 2.69E-03 2.95E-03 Sample ID: 362735 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.03E-02 2.88E-03 3.12E-03 Sample ID: 363480 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.16E-02 2.84E-03 2.86E-03 Sample ID: 363931 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.86E-02 2.78E-03 3.07E-03 Sample ID: 364453 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.42E-02 2.50E-03 2.93E-03 Sample ID: 364462 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <9.47E-04 0.00E+00 9.47E-04 Cs-137 <7.00E-04 0.00E+00 7.00E-04 Be-7 1.04E-01 2.16E-02 1.74E-02 K-40 8.73E-03 6.73E-03 8.36E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 16 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 280675 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.43E-02 2.29E-03 6.40E-03 Sample ID: 280848 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.40E-02 2.29E-03 6.40E-03 Sample ID: 281207 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.20E-02 2.21E-03 6.34E-03 Sample ID: 281528 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.58E-02 2.25E-03 6.09E-03 Sample ID: 282151 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.98E-02 2.43E-03 6.35E-03 Sample ID: 282963 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.49E-02 1.33E-03 3.07E-03 Sample ID: 283410 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.30E-02 1.54E-03 3.27E-03 Sample ID: 284576 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 1.43E-03 3.37E-03 Sample ID: 285137 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.21E-02 1.51E-03 3.09E-03 Sample ID: 285742 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.82E-02 1.38E-03 2.92E-03 Sample ID: 286246 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.36E-03 3.05E-03 Sample ID: 287131 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.21E-02 1.29E-03 3.23E-03 Sample ID: 288382 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.28E-02 1.28E-03 3.11E-03 Sample ID: 289012 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.63E-04 0.00E+00 3.63E-04 Cs-137 <3.30E-04 0.00E+00 3.30E-04 Be-7 1.41E-01 6.16E-03 6.01E-03 K-40 2.15E-02 2.95E-03 4.32E-03 Sample ID: 289106 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.02E-02 1.49E-03 3.22E-03 Sample ID: 289492 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.84E-02 1.45E-03 3.22E-03 Sample ID: 289902 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.83E-02 1.40E-03 2.99E-03 Sample ID: 291507 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.48E-02 1.27E-03 2.79E-03 Sample ID: 292801 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.70E-02 1.33E-03 2.82E-03 Sample ID: 293063 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.34E-02 1.55E-03 3.17E-03 Sample ID: 294694 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.55E-02 1.33E-03 2.98E-03 Sample ID: 295203 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.94E-02 1.30E-03 2.60E-03 Sample ID: 295464 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.91E-02 1.59E-03 3.55E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 17 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 295979 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.78E-02 1.44E-03 3.26E-03 Sample ID: 296224 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.89E-02 1.39E-03 2.87E-03 Sample ID: 296745 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.11E-02 1.48E-03 3.10E-03 Sample ID: 296972 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.78E-02 1.43E-03 3.24E-03 Sample ID: 297276 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <4.19E-04 0.00E+00 4.19E-04 Cs-137 <4.39E-04 0.00E+00 4.39E-04 Be-7 1.45E-01 2.46E-02 6.40E-03 K-40 <1.08E-02 0.00E+00 1.08E-02 Sample ID: 297369 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.33E-02 2.95E-03 2.93E-03 Sample ID: 297657 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.85E-02 2.76E-03 3.03E-03 Sample ID: 298193 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.83E-02 2.67E-03 2.81E-03 Sample ID: 350176 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.14E-02 2.41E-03 3.04E-03 Sample ID: 350917 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.28E-02 2.37E-03 2.73E-03 Sample ID: 351163 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.64E-02 2.96E-03 2.56E-03 Sample ID: 351530 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.20E-02 2.91E-03 2.98E-03 Sample ID: 353392 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.21E-02 2.92E-03 3.04E-03 Sample ID: 353975 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.01E-02 2.41E-03 2.16E-03 Sample ID: 354409 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.22E-02 2.77E-03 3.60E-03 Sample ID: 354720 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.09E-02 2.32E-03 2.89E-03 Sample ID: 355088 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.06E-02 3.30E-03 3.10E-03 Sample ID: 355585 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.35E-02 2.41E-03 2.76E-03 Sample ID: 355594 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <6.28E-04 0.00E+00 6.28E-04 Cs-137 <3.92E-04 0.00E+00 3.92E-04 Be-7 1.05E-01 2.40E-02 2.30E-02 K-40 <1.59E-02 0.00E+00 1.59E-02 Sample ID: 356442 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.85E-02 3.14E-03 2.85E-03 Sample ID: 357002 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.15E-02 2.93E-03 3.13E-03 Sample ID: 357998 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.68E-02 2.55E-03 2.68E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 18 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 358619 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.67E-02 2.60E-03 2.82E-03 Sample ID: 359226 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.00E-02 2.86E-03 3.12E-03 Sample ID: 359984 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.11E-02 2.86E-03 2.97E-03 Sample ID: 360671 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.19E-02 2.97E-03 3.20E-03 Sample ID: 361537 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.07E-02 2.85E-03 2.99E-03 Sample ID: 361921 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 2.62E-03 2.95E-03 Sample ID: 362737 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.38E-02 3.03E-03 3.12E-03 Sample ID: 363482 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.76E-02 2.66E-03 2.86E-03 Sample ID: 363933 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.09E-02 2.89E-03 3.07E-03 Sample ID: 364455 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.33E-02 2.46E-03 2.93E-03 Sample ID: 364464 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <8.61E-04 0.00E+00 8.61E-04 Cs-137 <6.83E-04 0.00E+00 6.83E-04 Be-7 9.90E-02 2.18E-02 2.06E-02 K-40 <1.58E-02 0.00E+00 1.58E-02 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 280676 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 9.25E-03 2.32E-03 7.04E-03 Sample ID: 280849 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.12E-02 2.40E-03 7.07E-03 Sample ID: 281208 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.20E-02 2.40E-03 6.99E-03 Sample ID: 281529 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.87E-02 2.52E-03 6.72E-03 Sample ID: 282152 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.64E-02 2.52E-03 7.00E-03 Sample ID: 282964 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.45E-02 1.32E-03 3.07E-03 Sample ID: 283411 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.05E-02 1.49E-03 3.27E-03 Sample ID: 284577 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.42E-02 1.37E-03 3.37E-03 Sample ID: 285139 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.34E-02 1.54E-03 3.09E-03 Sample ID: 285743 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.72E-02 1.36E-03 2.95E-03 Sample ID: 286247 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.51E-02 1.33E-03 3.05E-03 Sample ID: 287132 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 8.99E-03 1.21E-03 3.24E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 19 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 90 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 288383 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.47E-02 1.33E-03 3.11E-03 Sample ID: 289013 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.59E-04 0.00E+00 3.59E-04 Cs-137 <3.57E-04 0.00E+00 3.57E-04 Be-7 1.50E-01 6.06E-03 5.42E-03 K-40 2.65E-02 2.71E-03 3.53E-03 Sample ID: 289107 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.43E-02 1.35E-03 3.21E-03 Sample ID: 289493 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.85E-02 1.45E-03 3.22E-03 Sample ID: 289903 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.66E-02 1.35E-03 2.98E-03 Sample ID: 291508 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.83E-02 1.36E-03 2.80E-03 Sample ID: 292802 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.87E-02 1.35E-03 2.75E-03 Sample ID: 293064 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.44E-02 1.57E-03 3.17E-03 Sample ID: 294695 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.97E-02 1.43E-03 2.99E-03 Sample ID: 295204 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.93E-02 1.29E-03 2.60E-03 Sample ID: 295465 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.89E-02 1.58E-03 3.54E-03 Sample ID: 295980 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.49E-02 1.37E-03 3.26E-03 Sample ID: 296225 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.71E-02 1.35E-03 2.87E-03 Sample ID: 296746 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.07E-02 1.47E-03 3.10E-03 Sample ID: 296973 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.89E-02 1.46E-03 3.24E-03 Sample ID: 297277 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <8.26E-04 0.00E+00 8.26E-04 Cs-137 <8.71E-04 0.00E+00 8.71E-04 Be-7 1.53E-01 3.47E-02 2.65E-02 K-40 <2.35E-02 0.00E+00 2.35E-02 Sample ID: 297370 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.01E-02 2.80E-03 2.93E-03 Sample ID: 297658 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.03E-02 2.84E-03 3.03E-03 Sample ID: 298194 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.78E-02 2.64E-03 2.80E-03 Sample ID: 350177 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.56E-02 2.63E-03 3.05E-03 Sample ID: 350918 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.31E-02 2.34E-03 2.66E-03 Sample ID: 351164 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.64E-02 2.96E-03 2.56E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 20 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 90 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 351532 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.95E-02 2.80E-03 2.98E-03 Sample ID: 353393 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.19E-02 2.90E-03 3.04E-03 Sample ID: 353978 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.98E-02 2.43E-03 2.21E-03 Sample ID: 354410 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 9.46E-03 2.63E-03 3.60E-03 Sample ID: 354721 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 7.24E-03 2.11E-03 2.89E-03 Sample ID: 355090 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.27E-02 3.38E-03 3.10E-03 Sample ID: 355586 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.30E-02 2.39E-03 2.76E-03 Sample ID: 355595 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <8.67E-04 0.00E+00 8.67E-04 Cs-137 <6.82E-04 0.00E+00 6.82E-04 Be-7 1.08E-01 2.26E-02 1.79E-02 K-40 1.35E-02 7.10E-03 2.45E-03 Sample ID: 356443 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.55E-02 3.02E-03 2.85E-03 Sample ID: 357003 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.40E-02 3.05E-03 3.13E-03 Sample ID: 357999 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.79E-02 2.60E-03 2.68E-03 Sample ID: 358620 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.83E-02 2.68E-03 2.82E-03 Sample ID: 359229 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.51E-02 3.08E-03 3.11E-03 Sample ID: 359985 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.68E-02 3.10E-03 2.98E-03 Sample ID: 360672 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.14E-02 2.95E-03 3.20E-03 Sample ID: 361538 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.68E-02 3.11E-03 3.00E-03 Sample ID: 361922 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.79E-02 2.69E-03 2.95E-03 Sample ID: 362738 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.67E-02 3.15E-03 3.12E-03 Sample ID: 363483 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.34E-02 2.92E-03 2.87E-03 Sample ID: 363934 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.44E-02 3.04E-03 3.07E-03 Sample ID: 364456 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.40E-02 2.50E-03 2.93E-03 Sample ID: 364465 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <7.23E-04 0.00E+00 7.23E-04 Cs-137 <7.00E-04 0.00E+00 7.00E-04 Be-7 1.19E-01 2.33E-02 1.81E-02 K-40 <2.01E-02 0.00E+00 2.01E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 21 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 280677 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.30E-02 2.22E-03 6.30E-03 Sample ID: 280850 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.10E-02 2.18E-03 6.35E-03 Sample ID: 281209 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.22E-02 2.20E-03 6.27E-03 Sample ID: 281530 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.61E-02 2.26E-03 6.07E-03 Sample ID: 282153 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.48E-02 2.27E-03 6.26E-03 Sample ID: 282965 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.37E-03 3.09E-03 Sample ID: 283412 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.98E-02 1.47E-03 3.27E-03 Sample ID: 284578 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.49E-02 1.39E-03 3.37E-03 Sample ID: 285140 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.98E-02 1.45E-03 3.08E-03 Sample ID: 285745 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.91E-02 1.41E-03 2.95E-03 Sample ID: 286249 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.40E-02 1.30E-03 3.04E-03 Sample ID: 287134 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.15E-02 1.28E-03 3.23E-03 Sample ID: 288385 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.37E-02 1.30E-03 3.11E-03 Sample ID: 289014 Sample Dates: 12/30/2013 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.74E-04 0.00E+00 3.74E-04 Cs-137 <4.92E-04 0.00E+00 4.92E-04 Be-7 1.33E-01 7.54E-03 7.82E-03 K-40 1.17E-02 2.79E-03 4.66E-03 Sample ID: 289109 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.71E-02 1.41E-03 3.20E-03 Sample ID: 289495 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.59E-02 1.38E-03 3.17E-03 Sample ID: 289905 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.91E-02 1.42E-03 2.99E-03 Sample ID: 291510 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.76E-02 1.34E-03 2.79E-03 Sample ID: 292804 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.62E-02 1.31E-03 2.82E-03 Sample ID: 293066 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.44E-02 1.58E-03 3.18E-03 Sample ID: 294697 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.27E-02 1.50E-03 2.99E-03 Sample ID: 295206 Sample Dates: 5/19/2014 - 5/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.11E-02 3.65E-03 8.28E-03 Sample ID: 295467 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.72E-02 1.53E-03 3.53E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 22 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 295982 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.36E-02 1.33E-03 3.26E-03 Sample ID: 296227 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.92E-02 1.40E-03 2.86E-03 Sample ID: 296748 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.08E-02 1.51E-03 3.20E-03 Sample ID: 296975 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.73E-02 1.42E-03 3.24E-03 Sample ID: 297278 Sample Dates: 3/31/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <4.70E-04 0.00E+00 4.70E-04 Cs-137 <6.01E-04 0.00E+00 6.01E-04 Be-7 1.35E-01 2.84E-02 2.74E-02 K-40 2.00E-02 9.52E-03 9.74E-03 Sample ID: 297372 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.67E-02 2.63E-03 2.92E-03 Sample ID: 297660 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.07E-02 2.87E-03 3.04E-03 Sample ID: 298196 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.76E-02 2.63E-03 2.80E-03 Sample ID: 350178 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.78E-02 2.77E-03 3.11E-03 Sample ID: 350919 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.27E-02 2.37E-03 2.73E-03 Sample ID: 351165 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.76E-02 3.02E-03 2.55E-03 Sample ID: 351534 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.03E-02 2.82E-03 2.95E-03 Sample ID: 353394 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.85E-02 2.78E-03 3.07E-03 Sample ID: 353981 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.78E-02 2.34E-03 2.21E-03 Sample ID: 354411 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.18E-02 2.77E-03 3.61E-03 Sample ID: 354722 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 8.96E-03 2.21E-03 2.89E-03 Sample ID: 355092 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.08E-02 3.31E-03 3.10E-03 Sample ID: 355587 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.18E-02 2.32E-03 2.76E-03 Sample ID: 355596 Sample Dates: 6/30/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <8.89E-04 0.00E+00 8.89E-04 Cs-137 <7.55E-04 0.00E+00 7.55E-04 Be-7 1.23E-01 2.61E-02 2.41E-02 K-40 <1.90E-02 0.00E+00 1.90E-02 Sample ID: 356444 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.41E-02 2.96E-03 2.85E-03 Sample ID: 357004 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.28E-02 2.99E-03 3.13E-03 Sample ID: 358000 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.65E-02 2.53E-03 2.68E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 23 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 358621 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.72E-02 2.62E-03 2.81E-03 Sample ID: 359231 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.37E-02 3.02E-03 3.11E-03 Sample ID: 359986 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.42E-02 2.99E-03 2.98E-03 Sample ID: 360673 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.99E-02 2.89E-03 3.20E-03 Sample ID: 361539 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.46E-02 3.02E-03 2.99E-03 Sample ID: 361923 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.50E-02 2.56E-03 2.95E-03 Sample ID: 362739 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.54E-02 3.09E-03 3.12E-03 Sample ID: 363484 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.30E-02 2.90E-03 2.87E-03 Sample ID: 363935 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.15E-02 2.91E-03 3.07E-03 Sample ID: 364457 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.52E-02 2.56E-03 2.94E-03 Sample ID: 364466 Sample Dates: 9/29/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <6.10E-04 0.00E+00 6.10E-04 Cs-137 <6.26E-04 0.00E+00 6.26E-04 Be-7 1.20E-01 2.17E-02 1.09E-02 K-40 <1.82E-02 0.00E+00 1.82E-02 Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 280659 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.82E-02 0.00E+00 5.82E-02 Cs-134 <4.19E-02 0.00E+00 4.19E-02 Cs-137 <2.85E-02 0.00E+00 2.85E-02 Be-7 <1.78E-01 0.00E+00 1.78E-01 K-40 9.52E-01 2.38E-01 4.45E-01 Sample ID: 280832 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.57E-02 0.00E+00 5.57E-02 Cs-134 <3.17E-02 0.00E+00 3.17E-02 Cs-137 <4.61E-02 0.00E+00 4.61E-02 Be-7 <2.28E-01 0.00E+00 2.28E-01 K-40 8.39E-01 3.10E-01 5.79E-01 Sample ID: 281191 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.20E-02 0.00E+00 3.20E-02 Cs-134 <2.68E-02 0.00E+00 2.68E-02 Cs-137 <3.20E-02 0.00E+00 3.20E-02 Be-7 <2.28E-01 0.00E+00 2.28E-01 K-40 8.56E-01 2.47E-01 4.14E-01 Sample ID: 281512 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <2.11E-02 0.00E+00 2.11E-02 Cs-137 <2.89E-02 0.00E+00 2.89E-02 Be-7 <1.97E-01 0.00E+00 1.97E-01 K-40 5.04E-01 1.52E-01 1.24E-01 Sample ID: 282135 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.67E-02 0.00E+00 4.67E-02 Cs-134 <4.33E-02 0.00E+00 4.33E-02 Cs-137 <4.32E-02 0.00E+00 4.32E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 24 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 282135 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.08E-01 0.00E+00 3.08E-01 K-40 1.38E+00 2.87E-01 4.35E-01 Sample ID: 282947 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.90E-02 0.00E+00 1.90E-02 Cs-134 <1.47E-02 0.00E+00 1.47E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.10E-01 0.00E+00 1.10E-01 K-40 2.84E-01 1.16E-01 3.18E-01 Sample ID: 283394 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <1.87E-02 0.00E+00 1.87E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <7.89E-02 0.00E+00 7.89E-02 K-40 <5.55E-01 0.00E+00 5.55E-01 Sample ID: 284561 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.43E-02 0.00E+00 2.43E-02 Cs-134 <2.01E-02 0.00E+00 2.01E-02 Cs-137 <2.07E-02 0.00E+00 2.07E-02 Be-7 <1.44E-01 0.00E+00 1.44E-01 K-40 4.30E-01 1.11E-01 7.74E-02 Sample ID: 285122 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.30E-02 0.00E+00 2.30E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 5.11E-01 1.58E-01 2.76E-01 Sample ID: 285727 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.15E-02 0.00E+00 1.15E-02 Cs-134 <8.18E-03 0.00E+00 8.18E-03 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <5.79E-02 0.00E+00 5.79E-02 K-40 5.92E-01 8.38E-02 1.53E-01 Sample ID: 286231 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.76E-02 0.00E+00 2.76E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <1.82E-02 0.00E+00 1.82E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 <5.98E-01 0.00E+00 5.98E-01 Sample ID: 287116 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.17E-02 0.00E+00 2.17E-02 Cs-134 <1.59E-02 0.00E+00 1.59E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.52E-01 0.00E+00 1.52E-01 K-40 3.71E-01 1.03E-01 3.35E-01 Sample ID: 288367 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.74E-02 0.00E+00 2.74E-02 Cs-134 <9.79E-03 0.00E+00 9.79E-03 Cs-137 <1.76E-02 0.00E+00 1.76E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 5.71E-01 1.28E-01 2.45E-01 Sample ID: 289091 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.10E-02 0.00E+00 1.10E-02 Cs-134 <1.06E-02 0.00E+00 1.06E-02 Cs-137 <1.32E-02 0.00E+00 1.32E-02 Be-7 <8.34E-02 0.00E+00 8.34E-02 K-40 3.02E-01 8.06E-02 1.90E-01 Sample ID: 289477 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.89E-02 0.00E+00 2.89E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 25 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 289477 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <1.58E-02 0.00E+00 1.58E-02 Cs-137 <1.23E-02 0.00E+00 1.23E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 4.58E-01 1.15E-01 2.74E-01 Sample ID: 289887 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.99E-02 0.00E+00 2.99E-02 Cs-134 <2.09E-02 0.00E+00 2.09E-02 Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 5.70E-01 1.27E-01 2.58E-01 Sample ID: 291492 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.19E-02 0.00E+00 1.19E-02 Cs-134 <1.18E-02 0.00E+00 1.18E-02 Cs-137 <1.31E-02 0.00E+00 1.31E-02 Be-7 <9.50E-02 0.00E+00 9.50E-02 K-40 3.87E-01 9.97E-02 1.76E-01 Sample ID: 292786 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.10E-02 0.00E+00 1.10E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <1.15E-02 0.00E+00 1.15E-02 Be-7 <8.16E-02 0.00E+00 8.16E-02 K-40 4.34E-01 9.67E-02 1.02E-01 Sample ID: 293048 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.73E-02 0.00E+00 2.73E-02 Cs-134 <2.02E-02 0.00E+00 2.02E-02 Cs-137 <2.86E-02 0.00E+00 2.86E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 6.90E-01 1.41E-01 2.50E-01 Sample ID: 294679 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.56E-02 0.00E+00 1.56E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <1.51E-01 0.00E+00 1.51E-01 K-40 4.44E-01 1.56E-01 2.10E-01 Sample ID: 295188 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.18E-02 0.00E+00 1.18E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <1.23E-02 0.00E+00 1.23E-02 Be-7 <9.72E-02 0.00E+00 9.72E-02 K-40 3.92E-01 7.92E-02 1.54E-01 Sample ID: 295449 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.76E-01 0.00E+00 1.76E-01 K-40 3.67E-01 1.11E-01 4.04E-01 Sample ID: 295964 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.39E-02 0.00E+00 2.39E-02 Cs-134 <2.30E-02 0.00E+00 2.30E-02 Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 <5.48E-01 0.00E+00 5.48E-01 Sample ID: 296209 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <2.22E-02 0.00E+00 2.22E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <1.80E-01 0.00E+00 1.80E-01 K-40 <5.54E-01 0.00E+00 5.54E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 26 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 296730 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.83E-02 0.00E+00 2.83E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <4.50E-03 0.00E+00 4.50E-03 Be-7 <1.54E-01 0.00E+00 1.54E-01 K-40 6.86E-01 1.40E-01 7.73E-02 Sample ID: 296957 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <1.23E-02 0.00E+00 1.23E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.44E-01 0.00E+00 1.44E-01 K-40 <5.37E-01 0.00E+00 5.37E-01 Sample ID: 297354 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.38E-02 0.00E+00 2.38E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <1.78E-02 0.00E+00 1.78E-02 Be-7 <1.41E-01 0.00E+00 1.41E-01 K-40 4.84E-01 1.18E-01 2.11E-01 Sample ID: 297642 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.25E-02 0.00E+00 1.25E-02 Cs-134 <8.12E-03 0.00E+00 8.12E-03 Cs-137 <8.74E-03 0.00E+00 8.74E-03 Be-7 <5.20E-02 0.00E+00 5.20E-02 K-40 3.82E-01 1.45E-01 1.19E-01 Sample ID: 298178 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.94E-02 0.00E+00 4.94E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 <6.67E-01 0.00E+00 6.67E-01 Sample ID: 350204 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.19E-02 0.00E+00 4.19E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.59E-01 0.00E+00 1.59E-01 K-40 2.68E-01 2.02E-01 2.30E-01 Sample ID: 350920 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.01E-02 0.00E+00 2.01E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 3.27E-01 1.99E-01 8.05E-02 Sample ID: 351166 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 <6.16E-01 0.00E+00 6.16E-01 Sample ID: 351536 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <2.27E-02 0.00E+00 2.27E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 <5.59E-01 0.00E+00 5.59E-01 Sample ID: 353395 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.22E-02 0.00E+00 1.22E-02 Cs-134 <1.97E-02 0.00E+00 1.97E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 5.37E-01 2.57E-01 8.08E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 27 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 353983 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-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 7.01E-01 2.76E-01 7.04E-02 Sample ID: 354412 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.48E-02 0.00E+00 1.48E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.20E-02 0.00E+00 1.20E-02 Be-7 <7.70E-02 0.00E+00 7.70E-02 K-40 4.58E-01 2.40E-01 3.09E-01 Sample ID: 354723 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 3.87E-01 2.17E-01 8.06E-02 Sample ID: 355095 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.02E-02 0.00E+00 2.02E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 4.00E-01 2.51E-01 2.78E-01 Sample ID: 355597 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.17E-02 0.00E+00 3.17E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.68E-01 0.00E+00 1.68E-01 K-40 <5.40E-01 0.00E+00 5.40E-01 Sample ID: 356445 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.01E-02 0.00E+00 2.01E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-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 2.02E-01 2.75E-01 4.54E-01 Sample ID: 357008 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.55E-02 0.00E+00 2.55E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 7.13E-01 2.97E-01 8.05E-02 Sample ID: 358001 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.62E-02 0.00E+00 2.62E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <8.22E-02 0.00E+00 8.22E-02 K-40 4.45E-01 2.33E-01 8.04E-02 Sample ID: 358622 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.67E-02 0.00E+00 2.67E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 5.10E-01 3.00E-01 3.52E-01 Sample ID: 359233 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <7.61E-03 0.00E+00 7.61E-03 Cs-134 <4.99E-03 0.00E+00 4.99E-03 Cs-137 <5.48E-03 0.00E+00 5.48E-03 Be-7 <5.27E-02 0.00E+00 5.27E-02 K-40 5.39E-01 1.30E-01 8.67E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 28 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ]

Sample ID: 359987 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.02E-02 0.00E+00 3.02E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <8.34E-02 0.00E+00 8.34E-02 K-40 2.77E-01 2.36E-01 3.25E-01 Sample ID: 360674 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 4.35E-01 2.90E-01 3.72E-01 Sample ID: 361540 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <2.80E-02 0.00E+00 2.80E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 3.52E-01 2.28E-01 2.39E-01 Sample ID: 361924 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.40E-02 0.00E+00 3.40E-02 Cs-134 <1.33E-02 0.00E+00 1.33E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 4.01E-01 2.21E-01 2.20E-01 Sample ID: 362740 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.55E-02 0.00E+00 2.55E-02 Cs-134 <1.28E-02 0.00E+00 1.28E-02 Cs-137 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 6.30E-01 3.06E-01 3.36E-01 Sample ID: 363485 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.24E-02 0.00E+00 1.24E-02 Cs-134 <1.03E-02 0.00E+00 1.03E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <8.68E-02 0.00E+00 8.68E-02 K-40 3.79E-01 1.73E-01 1.80E-01 Sample ID: 363936 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.74E-02 0.00E+00 1.74E-02 Cs-134 <1.16E-02 0.00E+00 1.16E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <6.66E-02 0.00E+00 6.66E-02 K-40 6.36E-01 2.36E-01 1.96E-01 Sample ID: 364467 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.17E-02 0.00E+00 2.17E-02 Cs-134 <1.48E-02 0.00E+00 1.48E-02 Cs-137 <1.18E-02 0.00E+00 1.18E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 <3.99E-01 0.00E+00 3.99E-01 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 280660 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.93E-02 0.00E+00 4.93E-02 Cs-134 <3.95E-02 0.00E+00 3.95E-02 Cs-137 <4.67E-02 0.00E+00 4.67E-02 Be-7 <2.88E-01 0.00E+00 2.88E-01 K-40 6.92E-01 3.07E-01 5.69E-01 Sample ID: 280833 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.25E-02 0.00E+00 5.25E-02 Cs-134 <3.94E-02 0.00E+00 3.94E-02 Cs-137 <3.99E-02 0.00E+00 3.99E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 29 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 280833 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.09E-01 0.00E+00 3.09E-01 K-40 8.19E-01 2.85E-01 6.33E-01 Sample ID: 281192 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.88E-02 0.00E+00 4.88E-02 Cs-134 <3.03E-02 0.00E+00 3.03E-02 Cs-137 <8.99E-03 0.00E+00 8.99E-03 Be-7 <3.35E-01 0.00E+00 3.35E-01 K-40 1.04E+00 3.09E-01 6.36E-01 Sample ID: 281513 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.03E-02 0.00E+00 3.03E-02 Cs-134 <2.28E-02 0.00E+00 2.28E-02 Cs-137 <3.37E-02 0.00E+00 3.37E-02 Be-7 <2.69E-01 0.00E+00 2.69E-01 K-40 7.40E-01 1.91E-01 1.33E-01 Sample ID: 282136 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.58E-02 0.00E+00 3.58E-02 Cs-134 <2.39E-02 0.00E+00 2.39E-02 Cs-137 <3.42E-02 0.00E+00 3.42E-02 Be-7 <1.98E-01 0.00E+00 1.98E-01 K-40 1.02E+00 2.24E-01 3.50E-01 Sample ID: 282948 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.38E-02 0.00E+00 1.38E-02 Cs-134 <1.19E-02 0.00E+00 1.19E-02 Cs-137 <1.28E-02 0.00E+00 1.28E-02 Be-7 <7.99E-02 0.00E+00 7.99E-02 K-40 2.58E-01 7.16E-02 1.47E-01 Sample ID: 283395 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.43E-02 0.00E+00 1.43E-02 Cs-134 <1.28E-02 0.00E+00 1.28E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 <5.87E-01 0.00E+00 5.87E-01 Sample ID: 284562 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.44E-02 0.00E+00 1.44E-02 Cs-134 <9.10E-03 0.00E+00 9.10E-03 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <9.58E-02 0.00E+00 9.58E-02 K-40 2.64E-01 6.05E-02 1.00E-01 Sample ID: 285123 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.42E-02 0.00E+00 2.42E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 4.31E-01 1.11E-01 2.59E-01 Sample ID: 285728 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.24E-02 0.00E+00 1.24E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.22E-02 0.00E+00 1.22E-02 Be-7 <8.10E-02 0.00E+00 8.10E-02 K-40 <4.39E-01 0.00E+00 4.39E-01 Sample ID: 286232 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.75E-02 0.00E+00 1.75E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 <5.56E-01 0.00E+00 5.56E-01 Sample ID: 287117 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.64E-02 0.00E+00 2.64E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 30 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 287117 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <2.28E-02 0.00E+00 2.28E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 <5.66E-01 0.00E+00 5.66E-01 Sample ID: 288368 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.96E-02 0.00E+00 2.96E-02 Cs-134 <1.78E-02 0.00E+00 1.78E-02 Cs-137 <2.30E-02 0.00E+00 2.30E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 6.00E-01 1.31E-01 3.00E-01 Sample ID: 289092 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.51E-02 0.00E+00 1.51E-02 Cs-134 <8.14E-03 0.00E+00 8.14E-03 Cs-137 <1.02E-02 0.00E+00 1.02E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 3.30E-01 8.00E-02 1.43E-01 Sample ID: 289478 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <1.70E-02 0.00E+00 1.70E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 3.72E-01 1.03E-01 2.16E-01 Sample ID: 289888 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.62E-02 0.00E+00 2.62E-02 Cs-134 <1.23E-02 0.00E+00 1.23E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.80E-01 0.00E+00 1.80E-01 K-40 3.42E-01 9.87E-02 3.32E-01 Sample ID: 291493 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 4.90E-01 1.65E-01 2.14E-01 Sample ID: 292787 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.25E-02 0.00E+00 1.25E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <8.82E-03 0.00E+00 8.82E-03 Be-7 <8.25E-02 0.00E+00 8.25E-02 K-40 4.03E-01 1.17E-01 1.90E-01 Sample ID: 293049 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 4.97E-01 1.08E-01 1.71E-01 Sample ID: 294680 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.44E-02 0.00E+00 1.44E-02 Cs-134 <9.35E-03 0.00E+00 9.35E-03 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.01E-01 0.00E+00 1.01E-01 K-40 4.20E-01 9.90E-02 2.09E-01 Sample ID: 295189 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.90E-02 0.00E+00 1.90E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <2.05E-02 0.00E+00 2.05E-02 Be-7 <8.32E-02 0.00E+00 8.32E-02 K-40 <5.17E-01 0.00E+00 5.17E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 31 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 295450 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.90E-02 0.00E+00 2.90E-02 Cs-134 <2.07E-02 0.00E+00 2.07E-02 Cs-137 <3.10E-02 0.00E+00 3.10E-02 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 5.68E-01 1.38E-01 9.03E-02 Sample ID: 295965 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.71E-02 0.00E+00 2.71E-02 Cs-134 <1.47E-02 0.00E+00 1.47E-02 Cs-137 <1.98E-02 0.00E+00 1.98E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 2.89E-01 1.17E-01 3.23E-01 Sample ID: 296210 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.84E-02 0.00E+00 1.84E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.25E-02 0.00E+00 1.25E-02 Be-7 <1.06E-01 0.00E+00 1.06E-01 K-40 3.30E-01 8.83E-02 6.38E-02 Sample ID: 296731 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.23E-02 0.00E+00 1.23E-02 Cs-134 <1.18E-02 0.00E+00 1.18E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 4.59E-01 1.05E-01 1.78E-01 Sample ID: 296958 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.66E-02 0.00E+00 1.66E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <9.18E-02 0.00E+00 9.18E-02 K-40 <4.46E-01 0.00E+00 4.46E-01 Sample ID: 297355 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.55E-02 0.00E+00 2.55E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <2.01E-02 0.00E+00 2.01E-02 Be-7 <1.82E-01 0.00E+00 1.82E-01 K-40 5.70E-01 1.27E-01 7.70E-02 Sample ID: 297643 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <6.84E-03 0.00E+00 6.84E-03 Cs-137 <1.25E-02 0.00E+00 1.25E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 <3.71E-01 0.00E+00 3.71E-01 Sample ID: 298179 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.74E-02 0.00E+00 3.74E-02 Cs-134 <2.00E-02 0.00E+00 2.00E-02 Cs-137 <4.76E-03 0.00E+00 4.76E-03 Be-7 <1.73E-01 0.00E+00 1.73E-01 K-40 1.78E-01 1.46E-01 8.03E-02 Sample ID: 350180 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 3.57E-01 2.08E-01 8.06E-02 Sample ID: 350921 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.30E-02 0.00E+00 2.30E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 7.73E-01 3.10E-01 8.05E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 32 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 351167 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.77E-01 0.00E+00 1.77E-01 K-40 4.45E-01 2.33E-01 8.04E-02 Sample ID: 351538 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <2.53E-02 0.00E+00 2.53E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 5.60E-01 3.04E-01 3.35E-01 Sample ID: 353396 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <2.78E-02 0.00E+00 2.78E-02 Cs-137 <2.32E-02 0.00E+00 2.32E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 6.26E-01 2.79E-01 8.08E-02 Sample ID: 353986 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.53E-02 0.00E+00 1.53E-02 Cs-134 <2.22E-02 0.00E+00 2.22E-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 4.33E-01 2.66E-01 3.26E-01 Sample ID: 354413 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.10E-02 0.00E+00 2.10E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <2.70E-02 0.00E+00 2.70E-02 K-40 <6.81E-01 0.00E+00 6.81E-01 Sample ID: 354724 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 <4.73E-01 0.00E+00 4.73E-01 Sample ID: 355097 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.02E-02 0.00E+00 2.02E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 4.83E-01 2.77E-01 3.01E-01 Sample ID: 355598 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 3.05E-01 2.06E-01 2.02E-01 Sample ID: 356446 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.36E-02 0.00E+00 2.36E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 3.04E-01 2.54E-01 3.54E-01 Sample ID: 357009 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.23E-02 0.00E+00 2.23E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.69E-01 0.00E+00 1.69E-01 K-40 5.94E-01 2.70E-01 8.05E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 33 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 358002 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <4.76E-03 0.00E+00 4.76E-03 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 4.04E-01 2.48E-01 2.65E-01 Sample ID: 358623 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 <5.98E-01 0.00E+00 5.98E-01 Sample ID: 359235 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.42E-02 0.00E+00 1.42E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 4.75E-01 2.91E-01 3.50E-01 Sample ID: 359988 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.55E-02 0.00E+00 2.55E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.36E-01 0.00E+00 1.36E-01 K-40 3.58E-01 2.77E-01 3.80E-01 Sample ID: 360675 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.91E-02 0.00E+00 2.91E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 <6.34E-01 0.00E+00 6.34E-01 Sample ID: 361541 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.04E-02 0.00E+00 2.04E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 9.21E-01 3.40E-01 8.05E-02 Sample ID: 361925 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.20E-02 0.00E+00 3.20E-02 Cs-134 <1.03E-02 0.00E+00 1.03E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 4.02E-01 2.21E-01 2.18E-01 Sample ID: 362741 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.95E-02 0.00E+00 1.95E-02 Cs-134 <1.33E-02 0.00E+00 1.33E-02 Cs-137 <1.95E-02 0.00E+00 1.95E-02 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 4.61E-01 2.15E-01 6.58E-02 Sample ID: 363486 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.08E-02 0.00E+00 1.08E-02 Cs-134 <6.03E-03 0.00E+00 6.03E-03 Cs-137 <8.80E-03 0.00E+00 8.80E-03 Be-7 <6.01E-02 0.00E+00 6.01E-02 K-40 2.86E-01 1.21E-01 1.02E-01 Sample ID: 363937 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.66E-02 0.00E+00 1.66E-02 Cs-134 <1.16E-02 0.00E+00 1.16E-02 Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <8.61E-02 0.00E+00 8.61E-02 K-40 4.74E-01 2.15E-01 2.22E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 34 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 2 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ]

Sample ID: 364468 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.41E-02 0.00E+00 1.41E-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 6.46E-01 2.33E-01 1.71E-01 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 280661 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.79E-02 0.00E+00 4.79E-02 Cs-134 <3.47E-02 0.00E+00 3.47E-02 Cs-137 <2.83E-02 0.00E+00 2.83E-02 Be-7 <3.46E-01 0.00E+00 3.46E-01 K-40 6.46E-01 2.50E-01 1.50E-01 Sample ID: 280834 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.99E-02 0.00E+00 4.99E-02 Cs-134 <3.65E-02 0.00E+00 3.65E-02 Cs-137 <2.24E-02 0.00E+00 2.24E-02 Be-7 <3.45E-01 0.00E+00 3.45E-01 K-40 1.07E+00 2.58E-01 9.08E-01 Sample ID: 281193 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 9.50E-01 1.90E-01 1.03E-01 Sample ID: 281514 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <3.03E-02 0.00E+00 3.03E-02 Be-7 <1.60E-01 0.00E+00 1.60E-01 K-40 <7.35E-01 0.00E+00 7.35E-01 Sample ID: 282137 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.64E-02 0.00E+00 2.64E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <2.15E-02 0.00E+00 2.15E-02 Be-7 <8.40E-02 0.00E+00 8.40E-02 K-40 <8.57E-01 0.00E+00 8.57E-01 Sample ID: 282949 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.28E-02 0.00E+00 1.28E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <5.43E-02 0.00E+00 5.43E-02 K-40 2.55E-01 7.08E-02 5.31E-02 Sample ID: 283396 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.19E-02 0.00E+00 1.19E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <7.05E-02 0.00E+00 7.05E-02 K-40 4.02E-01 1.07E-01 1.68E-01 Sample ID: 284563 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.31E-02 0.00E+00 1.31E-02 Cs-134 <1.13E-02 0.00E+00 1.13E-02 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <5.03E-02 0.00E+00 5.03E-02 K-40 3.74E-01 9.96E-02 2.14E-01 Sample ID: 285124 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <6.70E-03 0.00E+00 6.70E-03 Cs-137 <2.15E-02 0.00E+00 2.15E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 35 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 285124 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <1.95E-01 0.00E+00 1.95E-01 K-40 <5.96E-01 0.00E+00 5.96E-01 Sample ID: 285729 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.87E-02 0.00E+00 1.87E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <1.23E-02 0.00E+00 1.23E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 4.06E-01 1.93E-01 2.57E-01 Sample ID: 286233 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <2.14E-02 0.00E+00 2.14E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 5.82E-01 1.83E-01 2.98E-01 Sample ID: 287118 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.31E-02 0.00E+00 1.31E-02 Cs-134 <8.71E-03 0.00E+00 8.71E-03 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <6.57E-02 0.00E+00 6.57E-02 K-40 3.09E-01 9.57E-02 1.73E-01 Sample ID: 288369 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.57E-02 0.00E+00 2.57E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <2.30E-02 0.00E+00 2.30E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 6.28E-01 1.34E-01 7.72E-02 Sample ID: 289093 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.35E-02 0.00E+00 1.35E-02 Cs-134 <9.37E-03 0.00E+00 9.37E-03 Cs-137 <1.21E-02 0.00E+00 1.21E-02 Be-7 <6.11E-02 0.00E+00 6.11E-02 K-40 2.58E-01 9.25E-02 1.78E-01 Sample ID: 289479 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.80E-02 0.00E+00 2.80E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 4.51E-01 1.56E-01 2.16E-01 Sample ID: 289889 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <2.08E-02 0.00E+00 2.08E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 <5.73E-01 0.00E+00 5.73E-01 Sample ID: 291494 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.28E-02 0.00E+00 1.28E-02 Cs-134 <6.49E-03 0.00E+00 6.49E-03 Cs-137 <1.25E-02 0.00E+00 1.25E-02 Be-7 <8.53E-02 0.00E+00 8.53E-02 K-40 4.98E-01 1.02E-01 1.08E-01 Sample ID: 292788 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.06E-02 0.00E+00 2.06E-02 Cs-134 <2.15E-02 0.00E+00 2.15E-02 Cs-137 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 4.85E-01 1.18E-01 7.72E-02 Sample ID: 293050 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.07E-02 0.00E+00 1.07E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 36 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 293050 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <6.67E-03 0.00E+00 6.67E-03 Cs-137 <8.16E-03 0.00E+00 8.16E-03 Be-7 <7.61E-02 0.00E+00 7.61E-02 K-40 <4.04E-01 0.00E+00 4.04E-01 Sample ID: 294681 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.31E-02 0.00E+00 1.31E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <1.07E-02 0.00E+00 1.07E-02 Be-7 <6.62E-02 0.00E+00 6.62E-02 K-40 2.71E-01 7.24E-02 5.23E-02 Sample ID: 295190 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 <3.57E-01 0.00E+00 3.57E-01 Sample ID: 295451 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.36E-02 0.00E+00 2.36E-02 Cs-134 <2.83E-02 0.00E+00 2.83E-02 Cs-137 <2.15E-02 0.00E+00 2.15E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 3.67E-01 1.11E-01 3.62E-01 Sample ID: 295966 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <2.37E-03 0.00E+00 2.37E-03 Cs-137 <1.02E-02 0.00E+00 1.02E-02 Be-7 <6.48E-02 0.00E+00 6.48E-02 K-40 <4.21E-01 0.00E+00 4.21E-01 Sample ID: 296211 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.19E-02 0.00E+00 1.19E-02 Cs-134 <1.02E-02 0.00E+00 1.02E-02 Cs-137 <1.34E-02 0.00E+00 1.34E-02 Be-7 <7.15E-02 0.00E+00 7.15E-02 K-40 4.15E-01 7.58E-02 3.74E-02 Sample ID: 296732 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.12E-02 0.00E+00 1.12E-02 Cs-134 <7.92E-03 0.00E+00 7.92E-03 Cs-137 <1.31E-02 0.00E+00 1.31E-02 Be-7 <6.86E-02 0.00E+00 6.86E-02 K-40 2.83E-01 9.39E-02 1.38E-01 Sample ID: 296959 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.01E-02 0.00E+00 1.01E-02 Cs-134 <8.94E-03 0.00E+00 8.94E-03 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <9.66E-02 0.00E+00 9.66E-02 K-40 3.11E-01 7.78E-02 5.26E-02 Sample ID: 297356 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <1.78E-02 0.00E+00 1.78E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 4.56E-01 1.14E-01 7.70E-02 Sample ID: 297644 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.39E-02 0.00E+00 3.39E-02 Cs-134 <8.63E-03 0.00E+00 8.63E-03 Cs-137 <1.39E-02 0.00E+00 1.39E-02 Be-7 <9.63E-02 0.00E+00 9.63E-02 K-40 4.29E-01 1.91E-01 5.53E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 37 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 298180 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.96E-02 0.00E+00 4.96E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 3.56E-01 2.08E-01 8.04E-02 Sample ID: 350182 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.92E-02 0.00E+00 2.92E-02 Cs-134 <2.00E-02 0.00E+00 2.00E-02 Cs-137 <4.77E-03 0.00E+00 4.77E-03 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 2.97E-01 1.90E-01 8.06E-02 Sample ID: 350923 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.66E-02 0.00E+00 1.66E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 5.65E-01 2.63E-01 8.05E-02 Sample ID: 351169 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.21E-02 0.00E+00 1.21E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 <5.98E-01 0.00E+00 5.98E-01 Sample ID: 351542 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.20E-02 0.00E+00 2.20E-02 Cs-134 <2.53E-02 0.00E+00 2.53E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 <8.23E-02 0.00E+00 8.23E-02 K-40 5.56E-01 3.08E-01 3.48E-01 Sample ID: 353398 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.55E-02 0.00E+00 1.55E-02 Cs-134 <1.97E-02 0.00E+00 1.97E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 3.22E-01 2.22E-01 2.46E-01 Sample ID: 353992 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.01E-02 0.00E+00 2.01E-02 Cs-134 <2.22E-02 0.00E+00 2.22E-02 Cs-137 <1.85E-02 0.00E+00 1.85E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 2.34E-01 2.03E-01 2.81E-01 Sample ID: 354415 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.50E-02 0.00E+00 3.50E-02 Cs-134 <5.95E-03 0.00E+00 5.95E-03 Cs-137 <2.38E-02 0.00E+00 2.38E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 <6.70E-01 0.00E+00 6.70E-01 Sample ID: 354726 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.36E-02 0.00E+00 2.36E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 <7.31E-01 0.00E+00 7.31E-01 Sample ID: 355100 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 6.54E-01 2.84E-01 8.05E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 38 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 355600 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.15E-02 0.00E+00 2.15E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 5.13E-01 2.84E-01 3.00E-01 Sample ID: 356461 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.67E-02 0.00E+00 2.67E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 3.77E-01 2.38E-01 2.52E-01 Sample ID: 357011 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.85E-02 0.00E+00 2.85E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 <5.80E-01 0.00E+00 5.80E-01 Sample ID: 358004 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 4.75E-01 2.41E-01 8.05E-02 Sample ID: 358625 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.60E-01 0.00E+00 1.60E-01 K-40 4.65E-01 2.97E-01 3.72E-01 Sample ID: 359238 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.84E-02 0.00E+00 1.84E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 <6.34E-01 0.00E+00 6.34E-01 Sample ID: 359990 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.17E-02 0.00E+00 3.17E-02 Cs-134 <2.00E-02 0.00E+00 2.00E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <3.07E-02 0.00E+00 3.07E-02 K-40 <5.99E-01 0.00E+00 5.99E-01 Sample ID: 360677 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.02E-02 0.00E+00 2.02E-02 Cs-134 <3.82E-03 0.00E+00 3.82E-03 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 5.65E-01 3.47E-01 4.52E-01 Sample ID: 361543 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.05E-02 0.00E+00 2.05E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 4.75E-01 2.41E-01 8.05E-02 Sample ID: 361927 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.97E-02 0.00E+00 3.97E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <1.28E-02 0.00E+00 1.28E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 6.13E-01 2.71E-01 2.41E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 39 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 4 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ]

Sample ID: 362743 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.06E-02 0.00E+00 3.06E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <4.21E-03 0.00E+00 4.21E-03 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 4.04E-01 2.11E-01 7.30E-02 Sample ID: 363488 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.30E-02 0.00E+00 1.30E-02 Cs-134 <9.01E-03 0.00E+00 9.01E-03 Cs-137 <7.94E-03 0.00E+00 7.94E-03 Be-7 <9.53E-02 0.00E+00 9.53E-02 K-40 3.52E-01 1.64E-01 1.64E-01 Sample ID: 363939 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.26E-02 0.00E+00 1.26E-02 Cs-134 <1.55E-02 0.00E+00 1.55E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <9.42E-02 0.00E+00 9.42E-02 K-40 4.08E-01 2.20E-01 2.71E-01 Sample ID: 364470 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.45E-02 0.00E+00 1.45E-02 Cs-134 <7.42E-03 0.00E+00 7.42E-03 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <6.64E-02 0.00E+00 6.64E-02 K-40 <3.28E-01 0.00E+00 3.28E-01 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 280662 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.50E-02 0.00E+00 5.50E-02 Cs-134 <3.92E-02 0.00E+00 3.92E-02 Cs-137 <3.28E-02 0.00E+00 3.28E-02 Be-7 <4.00E-01 0.00E+00 4.00E-01 K-40 9.04E-01 3.03E-01 5.69E-01 Sample ID: 280835 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.74E-02 0.00E+00 3.74E-02 Cs-134 <4.36E-02 0.00E+00 4.36E-02 Cs-137 <2.60E-02 0.00E+00 2.60E-02 Be-7 <2.27E-01 0.00E+00 2.27E-01 K-40 1.03E+00 2.57E-01 5.82E-01 Sample ID: 281194 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.66E-02 0.00E+00 2.66E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <1.97E-02 0.00E+00 1.97E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 1.29E+00 1.86E-01 7.25E-02 Sample ID: 281515 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <1.80E-02 0.00E+00 1.80E-02 Cs-137 <2.45E-02 0.00E+00 2.45E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 1.10E+00 2.15E-01 2.83E-01 Sample ID: 282138 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <2.08E-02 0.00E+00 2.08E-02 Cs-137 <2.59E-02 0.00E+00 2.59E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 1.21E+00 1.79E-01 7.13E-02 Sample ID: 282950 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 40 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 282950 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <1.73E-01 0.00E+00 1.73E-01 K-40 3.34E-01 1.48E-01 2.74E-01 Sample ID: 283397 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.34E-02 0.00E+00 1.34E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <7.06E-03 0.00E+00 7.06E-03 Be-7 <8.43E-02 0.00E+00 8.43E-02 K-40 4.68E-01 8.02E-02 2.17E-01 Sample ID: 284564 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.22E-02 0.00E+00 1.22E-02 Cs-134 <8.75E-03 0.00E+00 8.75E-03 Cs-137 <8.34E-03 0.00E+00 8.34E-03 Be-7 <6.68E-02 0.00E+00 6.68E-02 K-40 3.60E-01 9.79E-02 1.77E-01 Sample ID: 285125 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.68E-02 0.00E+00 2.68E-02 Cs-134 <1.67E-02 0.00E+00 1.67E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 4.70E-01 1.40E-01 7.72E-02 Sample ID: 285730 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.36E-02 0.00E+00 1.36E-02 Cs-134 <1.10E-02 0.00E+00 1.10E-02 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <8.73E-02 0.00E+00 8.73E-02 K-40 3.73E-01 7.17E-02 9.98E-02 Sample ID: 286234 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.48E-02 0.00E+00 2.48E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.02E-02 0.00E+00 2.02E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 5.15E-01 1.21E-01 2.58E-01 Sample ID: 287119 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 <4.95E-01 0.00E+00 4.95E-01 Sample ID: 288370 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.97E-02 0.00E+00 1.97E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 4.22E-01 1.34E-01 3.00E-01 Sample ID: 289094 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.51E-02 0.00E+00 1.51E-02 Cs-134 <9.13E-03 0.00E+00 9.13E-03 Cs-137 <9.66E-03 0.00E+00 9.66E-03 Be-7 <7.20E-02 0.00E+00 7.20E-02 K-40 <4.10E-01 0.00E+00 4.10E-01 Sample ID: 289480 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <2.29E-02 0.00E+00 2.29E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 5.33E-01 1.55E-01 2.56E-01 Sample ID: 289890 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.39E-02 0.00E+00 2.39E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 41 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 289890 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <2.42E-02 0.00E+00 2.42E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.83E-01 0.00E+00 1.83E-01 K-40 4.86E-01 1.18E-01 2.59E-01 Sample ID: 291495 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.38E-02 0.00E+00 1.38E-02 Cs-134 <7.82E-03 0.00E+00 7.82E-03 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <8.73E-02 0.00E+00 8.73E-02 K-40 1.79E-01 1.04E-01 2.33E-01 Sample ID: 292789 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.05E-02 0.00E+00 2.05E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <2.27E-02 0.00E+00 2.27E-02 Be-7 <1.77E-01 0.00E+00 1.77E-01 K-40 6.51E-01 1.62E-01 2.55E-01 Sample ID: 293051 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.29E-02 0.00E+00 1.29E-02 Cs-134 <1.01E-02 0.00E+00 1.01E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <9.44E-02 0.00E+00 9.44E-02 K-40 9.93E-02 8.28E-02 3.78E-02 Sample ID: 294682 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <6.93E-03 0.00E+00 6.93E-03 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.37E-02 0.00E+00 1.37E-02 Be-7 <6.96E-02 0.00E+00 6.96E-02 K-40 3.32E-01 8.38E-02 1.52E-01 Sample ID: 295191 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.99E-02 0.00E+00 1.99E-02 Cs-134 <1.75E-02 0.00E+00 1.75E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 3.17E-01 1.19E-01 2.22E-01 Sample ID: 295452 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.28E-02 0.00E+00 3.28E-02 Cs-134 <2.06E-02 0.00E+00 2.06E-02 Cs-137 <2.96E-02 0.00E+00 2.96E-02 Be-7 <1.94E-01 0.00E+00 1.94E-01 K-40 5.25E-01 1.64E-01 2.93E-01 Sample ID: 295967 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.19E-02 0.00E+00 1.19E-02 Cs-134 <8.10E-03 0.00E+00 8.10E-03 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <8.50E-02 0.00E+00 8.50E-02 K-40 4.10E-01 8.98E-02 1.78E-01 Sample ID: 296212 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <1.03E-02 0.00E+00 1.03E-02 Cs-137 <7.18E-03 0.00E+00 7.18E-03 Be-7 <5.59E-02 0.00E+00 5.59E-02 K-40 3.07E-01 1.02E-01 1.61E-01 Sample ID: 296733 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.44E-02 0.00E+00 1.44E-02 Cs-134 <9.81E-03 0.00E+00 9.81E-03 Cs-137 <1.15E-02 0.00E+00 1.15E-02 Be-7 <6.30E-02 0.00E+00 6.30E-02 K-40 4.00E-01 7.43E-02 3.73E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 42 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 296960 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.29E-02 0.00E+00 1.29E-02 Cs-134 <8.61E-03 0.00E+00 8.61E-03 Cs-137 <1.10E-02 0.00E+00 1.10E-02 Be-7 <6.67E-02 0.00E+00 6.67E-02 K-40 7.05E-02 8.26E-02 3.72E-02 Sample ID: 297357 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.26E-02 0.00E+00 2.26E-02 Cs-134 <1.40E-02 0.00E+00 1.40E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.67E-01 0.00E+00 1.67E-01 K-40 2.00E-01 1.25E-01 2.68E-01 Sample ID: 297645 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.95E-02 0.00E+00 2.95E-02 Cs-134 <1.26E-02 0.00E+00 1.26E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 5.56E-01 1.84E-01 3.86E-02 Sample ID: 298181 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.09E-02 0.00E+00 4.09E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 <5.82E-01 0.00E+00 5.82E-01 Sample ID: 350184 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.08E-02 0.00E+00 3.08E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 4.31E-01 2.58E-01 2.77E-01 Sample ID: 350925 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.43E-02 0.00E+00 1.43E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <2.00E-01 0.00E+00 2.00E-01 K-40 3.86E-01 2.17E-01 8.05E-02 Sample ID: 351171 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 4.40E-01 2.89E-01 3.65E-01 Sample ID: 351546 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.20E-02 0.00E+00 2.20E-02 Cs-134 <5.75E-03 0.00E+00 5.75E-03 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 4.98E-01 3.05E-01 3.75E-01 Sample ID: 353400 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 5.10E-01 2.86E-01 3.09E-01 Sample ID: 353997 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.71E-02 0.00E+00 1.71E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <7.18E-02 0.00E+00 7.18E-02 K-40 <4.72E-01 0.00E+00 4.72E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 43 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 354417 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.31E-02 0.00E+00 1.31E-02 Cs-134 <1.79E-02 0.00E+00 1.79E-02 Cs-137 <1.07E-02 0.00E+00 1.07E-02 Be-7 <9.62E-02 0.00E+00 9.62E-02 K-40 4.61E-01 2.01E-01 1.94E-01 Sample ID: 354728 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <2.54E-02 0.00E+00 2.54E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 <6.00E-01 0.00E+00 6.00E-01 Sample ID: 355104 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.86E-02 0.00E+00 1.86E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <2.49E-02 0.00E+00 2.49E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 5.54E-01 2.83E-01 2.63E-01 Sample ID: 355602 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.30E-02 0.00E+00 2.30E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 4.16E-01 2.78E-01 3.50E-01 Sample ID: 356463 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.01E-02 0.00E+00 2.01E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 3.11E-01 2.45E-01 3.26E-01 Sample ID: 357013 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.97E-02 0.00E+00 2.97E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 4.30E-01 2.59E-01 2.80E-01 Sample ID: 358006 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.63E-02 0.00E+00 2.63E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 5.04E-01 2.48E-01 8.04E-02 Sample ID: 358627 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 4.10E-01 2.62E-01 3.08E-01 Sample ID: 359242 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.65E-02 0.00E+00 1.65E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <4.77E-03 0.00E+00 4.77E-03 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 5.65E-01 2.63E-01 8.05E-02 Sample ID: 359992 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.18E-02 0.00E+00 2.18E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 <7.16E-01 0.00E+00 7.16E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 44 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 360679 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.55E-02 0.00E+00 1.55E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 6.22E-01 3.53E-01 4.41E-01 Sample ID: 361545 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 <6.34E-01 0.00E+00 6.34E-01 Sample ID: 361929 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 <4.23E-01 0.00E+00 4.23E-01 Sample ID: 362745 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.06E-02 0.00E+00 1.06E-02 Cs-134 <1.04E-02 0.00E+00 1.03E-02 Cs-137 <1.03E-02 0.00E+00 1.03E-02 Be-7 <7.99E-02 0.00E+00 7.99E-02 K-40 <3.49E-01 0.00E+00 3.49E-01 Sample ID: 363490 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.73E-02 0.00E+00 1.73E-02 Cs-134 <1.15E-02 0.00E+00 1.15E-02 Cs-137 <1.87E-02 0.00E+00 1.87E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 6.20E-01 2.94E-01 2.88E-01 Sample ID: 363941 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.74E-02 0.00E+00 1.74E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.43E-02 0.00E+00 1.43E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 7.23E-01 2.34E-01 4.78E-02 Sample ID: 364472 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.48E-02 0.00E+00 1.48E-02 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <8.71E-02 0.00E+00 8.71E-02 K-40 8.35E-01 2.53E-01 4.81E-02 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 280663 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.89E-02 0.00E+00 4.89E-02 Cs-134 <3.02E-02 0.00E+00 3.02E-02 Cs-137 <3.56E-02 0.00E+00 3.56E-02 Be-7 <3.76E-01 0.00E+00 3.76E-01 K-40 <1.21E+00 0.00E+00 1.21E+00 Sample ID: 280836 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.77E-02 0.00E+00 3.77E-02 Cs-134 <4.06E-02 0.00E+00 4.06E-02 Cs-137 <4.25E-02 0.00E+00 4.25E-02 Be-7 <2.49E-01 0.00E+00 2.49E-01 K-40 9.31E-01 2.49E-01 1.80E-01 Sample ID: 281195 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.47E-02 0.00E+00 5.47E-02 Cs-134 <4.19E-02 0.00E+00 4.19E-02 Cs-137 <3.90E-02 0.00E+00 3.90E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 45 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 281195 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.67E-01 0.00E+00 2.67E-01 K-40 <1.06E+00 0.00E+00 1.06E+00 Sample ID: 281516 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <1.47E-02 0.00E+00 1.47E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 7.78E-01 1.38E-01 6.58E-02 Sample ID: 282139 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.68E-02 0.00E+00 2.68E-02 Cs-134 <2.26E-02 0.00E+00 2.26E-02 Cs-137 <2.30E-02 0.00E+00 2.30E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 9.42E-01 2.11E-01 1.27E-01 Sample ID: 282951 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.15E-02 0.00E+00 1.15E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.39E-02 0.00E+00 1.39E-02 Be-7 <9.76E-02 0.00E+00 9.76E-02 K-40 <3.96E-01 0.00E+00 3.96E-01 Sample ID: 283398 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.33E-02 0.00E+00 1.33E-02 Cs-134 <8.57E-03 0.00E+00 8.57E-03 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <7.32E-02 0.00E+00 7.32E-02 K-40 6.89E-01 9.05E-02 3.21E-02 Sample ID: 284565 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.20E-02 0.00E+00 1.20E-02 Cs-134 <9.45E-03 0.00E+00 9.45E-03 Cs-137 <7.43E-03 0.00E+00 7.43E-03 Be-7 <6.48E-02 0.00E+00 6.48E-02 K-40 4.60E-01 8.80E-02 1.28E-01 Sample ID: 285126 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <1.93E-02 0.00E+00 1.93E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 <5.17E-01 0.00E+00 5.17E-01 Sample ID: 285731 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.74E-02 0.00E+00 1.74E-02 Cs-137 <2.75E-02 0.00E+00 2.75E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 4.28E-01 1.10E-01 2.61E-01 Sample ID: 286235 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <1.79E-02 0.00E+00 1.79E-02 Cs-137 <2.19E-02 0.00E+00 2.19E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 <6.10E-01 0.00E+00 6.10E-01 Sample ID: 287120 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <8.42E-03 0.00E+00 8.42E-03 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <1.28E-02 0.00E+00 1.28E-02 Be-7 <9.50E-02 0.00E+00 9.50E-02 K-40 3.55E-01 1.03E-01 1.86E-01 Sample ID: 288371 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.84E-02 0.00E+00 1.84E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 46 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 288371 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.80E-01 0.00E+00 1.80E-01 K-40 6.05E-01 1.32E-01 2.61E-01 Sample ID: 289095 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.24E-02 0.00E+00 1.24E-02 Cs-134 <1.28E-02 0.00E+00 1.28E-02 Cs-137 <1.37E-02 0.00E+00 1.37E-02 Be-7 <5.89E-02 0.00E+00 5.89E-02 K-40 3.44E-01 8.60E-02 5.81E-02 Sample ID: 289481 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.60E-02 0.00E+00 2.60E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-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 4.43E-01 1.40E-01 2.72E-01 Sample ID: 289891 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.78E-02 0.00E+00 2.78E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <2.51E-02 0.00E+00 2.51E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 4.38E-01 1.49E-01 2.46E-01 Sample ID: 291496 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.27E-02 0.00E+00 1.27E-02 Cs-134 <8.20E-03 0.00E+00 8.20E-03 Cs-137 <1.09E-02 0.00E+00 1.09E-02 Be-7 <6.72E-02 0.00E+00 6.72E-02 K-40 5.36E-01 7.99E-02 1.08E-01 Sample ID: 292790 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <9.94E-03 0.00E+00 9.94E-03 Cs-134 <1.13E-02 0.00E+00 1.13E-02 Cs-137 <8.08E-03 0.00E+00 8.08E-03 Be-7 <5.09E-02 0.00E+00 5.09E-02 K-40 3.03E-01 7.99E-02 5.24E-02 Sample ID: 293052 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.12E-02 0.00E+00 1.12E-02 Cs-134 <8.90E-03 0.00E+00 8.90E-03 Cs-137 <9.42E-03 0.00E+00 9.42E-03 Be-7 <7.98E-02 0.00E+00 7.98E-02 K-40 5.96E-01 8.51E-02 3.29E-02 Sample ID: 294683 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.36E-02 0.00E+00 1.36E-02 Cs-134 <9.09E-03 0.00E+00 9.09E-03 Cs-137 <1.00E-02 0.00E+00 1.00E-02 Be-7 <6.45E-02 0.00E+00 6.45E-02 K-40 5.48E-01 8.97E-02 1.26E-01 Sample ID: 295192 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.60E-02 0.00E+00 2.60E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.58E-02 0.00E+00 1.58E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 <4.87E-01 0.00E+00 4.87E-01 Sample ID: 295453 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.28E-02 0.00E+00 2.28E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <1.93E-02 0.00E+00 1.93E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 6.27E-01 1.74E-01 8.99E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 47 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 295968 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.36E-02 0.00E+00 2.36E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 5.57E-01 1.25E-01 7.53E-02 Sample ID: 296213 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.16E-02 0.00E+00 1.16E-02 Cs-134 <9.07E-03 0.00E+00 9.07E-03 Cs-137 <9.26E-03 0.00E+00 9.26E-03 Be-7 <6.30E-02 0.00E+00 6.30E-02 K-40 5.39E-01 8.13E-02 1.15E-01 Sample ID: 296734 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.22E-02 0.00E+00 1.22E-02 Cs-134 <8.21E-03 0.00E+00 8.21E-03 Cs-137 <1.08E-02 0.00E+00 1.08E-02 Be-7 <7.22E-02 0.00E+00 7.22E-02 K-40 5.28E-01 8.93E-02 1.08E-01 Sample ID: 296961 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <1.29E-02 0.00E+00 1.29E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 <4.29E-01 0.00E+00 4.29E-01 Sample ID: 297358 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.45E-02 0.00E+00 1.45E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 3.53E-01 9.10E-02 6.35E-02 Sample ID: 297646 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.84E-02 0.00E+00 1.84E-02 Cs-134 <1.03E-02 0.00E+00 1.03E-02 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 3.88E-01 1.97E-01 6.57E-02 Sample ID: 298182 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.94E-02 0.00E+00 4.94E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 <7.19E-01 0.00E+00 7.19E-01 Sample ID: 350181 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.51E-02 0.00E+00 2.51E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 4.75E-01 2.41E-01 8.05E-02 Sample ID: 350922 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-137 <2.10E-02 0.00E+00 2.10E-02 Be-7 <1.65E-01 0.00E+00 1.65E-01 K-40 4.13E-01 2.24E-01 8.00E-02 Sample ID: 351168 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <2.08E-02 0.00E+00 2.08E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 <5.68E-01 0.00E+00 5.68E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 48 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 351540 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.19E-02 0.00E+00 2.19E-02 Cs-134 <2.32E-02 0.00E+00 2.32E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 3.94E-01 2.21E-01 8.22E-02 Sample ID: 353397 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.62E-02 0.00E+00 2.62E-02 Cs-134 <5.74E-03 0.00E+00 5.74E-03 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 <6.55E-01 0.00E+00 6.55E-01 Sample ID: 353989 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <2.21E-02 0.00E+00 2.21E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <9.00E-02 0.00E+00 9.00E-02 K-40 1.37E-01 1.89E-01 3.11E-01 Sample ID: 354414 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.63E-02 0.00E+00 2.63E-02 Cs-134 <3.31E-02 0.00E+00 3.31E-02 Cs-137 <2.40E-02 0.00E+00 2.40E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 <6.17E-01 0.00E+00 6.17E-01 Sample ID: 354725 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <5.66E-03 0.00E+00 5.66E-03 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 6.01E-01 3.32E-01 3.96E-01 Sample ID: 355098 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.18E-02 0.00E+00 2.18E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <2.14E-02 0.00E+00 2.14E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 5.72E-01 2.67E-01 8.15E-02 Sample ID: 355599 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.42E-02 0.00E+00 2.42E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 4.17E-01 2.82E-01 3.60E-01 Sample ID: 356448 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.61E-02 0.00E+00 2.61E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 5.61E-01 2.62E-01 8.01E-02 Sample ID: 357010 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 <5.95E-01 0.00E+00 5.95E-01 Sample ID: 358003 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 <5.24E-01 0.00E+00 5.24E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 49 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 358624 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.65E-02 0.00E+00 2.65E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 <5.79E-01 0.00E+00 5.79E-01 Sample ID: 359236 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.27E-02 0.00E+00 2.27E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <8.11E-02 0.00E+00 8.11E-02 K-40 <6.83E-01 0.00E+00 6.83E-01 Sample ID: 359989 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.52E-02 0.00E+00 2.52E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 3.72E-01 2.42E-01 2.72E-01 Sample ID: 360676 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.50E-02 0.00E+00 2.50E-02 Cs-134 <1.86E-02 0.00E+00 1.86E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 <6.54E-01 0.00E+00 6.54E-01 Sample ID: 361542 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.43E-02 0.00E+00 2.43E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 5.67E-01 2.98E-01 3.09E-01 Sample ID: 361926 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.17E-02 0.00E+00 3.17E-02 Cs-134 <1.33E-02 0.00E+00 1.33E-02 Cs-137 <1.02E-02 0.00E+00 1.02E-02 Be-7 <8.73E-02 0.00E+00 8.73E-02 K-40 <4.57E-01 0.00E+00 4.57E-01 Sample ID: 362742 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <9.86E-03 0.00E+00 9.86E-03 Cs-137 <1.07E-02 0.00E+00 1.07E-02 Be-7 <7.07E-02 0.00E+00 7.07E-02 K-40 2.54E-01 1.57E-01 2.04E-01 Sample ID: 363487 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.07E-02 0.00E+00 2.07E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 <5.41E-01 0.00E+00 5.41E-01 Sample ID: 363938 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <7.72E-02 0.00E+00 7.72E-02 K-40 7.79E-01 2.73E-01 2.52E-01 Sample ID: 364469 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.30E-02 0.00E+00 1.30E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <8.65E-02 0.00E+00 8.65E-02 K-40 8.13E-01 2.49E-01 4.79E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 50 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 280664 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.74E-02 0.00E+00 4.74E-02 Cs-134 <3.53E-02 0.00E+00 3.53E-02 Cs-137 <4.59E-02 0.00E+00 4.59E-02 Be-7 <3.28E-01 0.00E+00 3.28E-01 K-40 4.90E-01 1.73E-01 4.58E-01 Sample ID: 280837 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <6.88E-02 0.00E+00 6.88E-02 Cs-134 <4.06E-02 0.00E+00 4.06E-02 Cs-137 <4.10E-02 0.00E+00 4.10E-02 Be-7 <3.69E-01 0.00E+00 3.69E-01 K-40 7.73E-01 3.17E-01 4.47E-01 Sample ID: 281196 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.40E-02 0.00E+00 4.40E-02 Cs-134 <3.19E-02 0.00E+00 3.19E-02 Cs-137 <5.78E-02 0.00E+00 5.78E-02 Be-7 <3.98E-01 0.00E+00 3.98E-01 K-40 8.35E-01 2.68E-01 5.46E-01 Sample ID: 281517 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.28E-02 0.00E+00 2.28E-02 Cs-134 <2.61E-02 0.00E+00 2.61E-02 Cs-137 <2.61E-02 0.00E+00 2.61E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 8.91E-01 1.90E-01 1.10E-01 Sample ID: 282140 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.48E-02 0.00E+00 4.48E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <4.22E-02 0.00E+00 4.22E-02 Be-7 <3.18E-01 0.00E+00 3.18E-01 K-40 <1.24E+00 0.00E+00 1.24E+00 Sample ID: 282952 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.35E-02 0.00E+00 1.35E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.16E-02 0.00E+00 1.16E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 <4.50E-01 0.00E+00 4.50E-01 Sample ID: 283399 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <6.67E-03 0.00E+00 6.67E-03 Cs-137 <1.39E-02 0.00E+00 1.39E-02 Be-7 <9.48E-02 0.00E+00 9.48E-02 K-40 3.65E-01 8.86E-02 5.81E-02 Sample ID: 284566 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.37E-02 0.00E+00 1.37E-02 Cs-134 <7.92E-03 0.00E+00 7.92E-03 Cs-137 <3.15E-03 0.00E+00 3.15E-03 Be-7 <9.50E-02 0.00E+00 9.50E-02 K-40 5.40E-01 1.08E-01 1.88E-01 Sample ID: 285127 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.31E-02 0.00E+00 2.31E-02 Cs-134 <2.14E-02 0.00E+00 2.14E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 6.57E-01 1.37E-01 7.72E-02 Sample ID: 285732 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.52E-02 0.00E+00 1.52E-02 Cs-134 <1.09E-02 0.00E+00 1.09E-02 Cs-137 <7.81E-03 0.00E+00 7.81E-03 Be-7 <7.16E-02 0.00E+00 7.16E-02 K-40 5.38E-01 1.08E-01 1.99E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 51 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 286236 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <1.26E-02 0.00E+00 1.26E-02 Cs-137 <2.43E-02 0.00E+00 2.43E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 <6.27E-01 0.00E+00 6.27E-01 Sample ID: 287121 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.32E-02 0.00E+00 1.32E-02 Cs-134 <1.41E-02 0.00E+00 1.41E-02 Cs-137 <1.06E-02 0.00E+00 1.06E-02 Be-7 <4.93E-02 0.00E+00 4.93E-02 K-40 4.28E-01 9.58E-02 1.77E-01 Sample ID: 288372 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <2.11E-02 0.00E+00 2.11E-02 Cs-137 <1.18E-02 0.00E+00 1.18E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 5.05E-01 1.81E-01 3.03E-01 Sample ID: 289096 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.19E-02 0.00E+00 2.19E-02 Cs-134 <1.09E-02 0.00E+00 1.09E-02 Cs-137 <1.38E-02 0.00E+00 1.38E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 4.41E-01 1.37E-01 2.06E-01 Sample ID: 289482 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.68E-02 0.00E+00 2.68E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <1.54E-02 0.00E+00 1.54E-02 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 3.99E-01 1.07E-01 2.72E-01 Sample ID: 289892 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.67E-02 0.00E+00 1.67E-02 Cs-137 <2.36E-02 0.00E+00 2.36E-02 Be-7 <1.67E-01 0.00E+00 1.67E-01 K-40 3.48E-01 1.36E-01 7.76E-02 Sample ID: 291497 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <9.19E-03 0.00E+00 9.19E-03 Cs-137 <1.37E-02 0.00E+00 1.37E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 3.09E-01 7.70E-02 3.72E-02 Sample ID: 292791 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <2.04E-02 0.00E+00 2.04E-02 Cs-137 <2.48E-02 0.00E+00 2.48E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 7.11E-01 1.42E-01 2.15E-01 Sample ID: 293053 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <8.46E-03 0.00E+00 8.46E-03 Cs-134 <1.10E-02 0.00E+00 1.10E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <8.15E-02 0.00E+00 8.15E-02 K-40 3.74E-01 9.07E-02 1.93E-01 Sample ID: 294684 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.49E-03 0.00E+00 2.49E-03 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <2.94E-03 0.00E+00 2.94E-03 Be-7 <9.71E-02 0.00E+00 9.71E-02 K-40 2.69E-01 7.19E-02 1.43E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 52 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 295193 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.15E-02 0.00E+00 2.15E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-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 3.46E-01 1.18E-01 1.88E-01 Sample ID: 295454 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.86E-02 0.00E+00 1.86E-02 Cs-134 <2.05E-02 0.00E+00 2.05E-02 Cs-137 <2.14E-02 0.00E+00 2.14E-02 Be-7 <2.07E-01 0.00E+00 2.07E-01 K-40 5.58E-01 1.67E-01 2.92E-01 Sample ID: 295969 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.13E-02 0.00E+00 1.13E-02 Cs-134 <7.88E-03 0.00E+00 7.88E-03 Cs-137 <1.06E-02 0.00E+00 1.06E-02 Be-7 <5.70E-02 0.00E+00 5.70E-02 K-40 4.89E-01 7.54E-02 1.10E-01 Sample ID: 296214 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.37E-02 0.00E+00 1.37E-02 Cs-134 <8.75E-03 0.00E+00 8.75E-03 Cs-137 <1.42E-02 0.00E+00 1.42E-02 Be-7 <5.78E-02 0.00E+00 5.78E-02 K-40 2.66E-01 7.67E-02 2.13E-01 Sample ID: 296735 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.32E-02 0.00E+00 1.32E-02 Cs-134 <1.06E-02 0.00E+00 1.06E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <8.03E-02 0.00E+00 8.03E-02 K-40 2.59E-01 7.47E-02 1.55E-01 Sample ID: 296962 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.11E-02 0.00E+00 1.11E-02 Cs-134 <9.73E-03 0.00E+00 9.73E-03 Cs-137 <8.77E-03 0.00E+00 8.77E-03 Be-7 <8.12E-02 0.00E+00 8.12E-02 K-40 3.29E-01 7.97E-02 1.75E-01 Sample ID: 297359 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.59E-02 0.00E+00 1.59E-02 Cs-134 <7.47E-03 0.00E+00 7.47E-03 Cs-137 <9.76E-03 0.00E+00 9.76E-03 Be-7 <1.10E-01 0.00E+00 1.10E-01 K-40 3.76E-01 9.40E-02 6.35E-02 Sample ID: 297647 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.23E-02 0.00E+00 5.23E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 2.95E-01 2.73E-01 4.05E-01 Sample ID: 298183 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.69E-02 0.00E+00 4.69E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 1.52E-01 1.85E-01 2.88E-01 Sample ID: 350183 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.07E-02 0.00E+00 2.07E-02 Cs-134 <1.86E-02 0.00E+00 1.86E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 4.68E-01 2.60E-01 2.49E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 53 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 350924 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.98E-02 0.00E+00 1.98E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 4.43E-01 2.32E-01 8.00E-02 Sample ID: 351170 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.06E-02 0.00E+00 2.06E-02 Cs-134 <1.28E-02 0.00E+00 1.28E-02 Cs-137 <1.27E-02 0.00E+00 1.27E-02 Be-7 <1.01E-01 0.00E+00 1.01E-01 K-40 4.96E-01 2.80E-01 3.07E-01 Sample ID: 351544 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.36E-02 0.00E+00 2.36E-02 Cs-134 <3.42E-02 0.00E+00 3.42E-02 Cs-137 <2.36E-02 0.00E+00 2.36E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 5.93E-01 3.47E-01 4.34E-01 Sample ID: 353399 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.18E-02 0.00E+00 2.18E-02 Cs-134 <1.98E-02 0.00E+00 1.98E-02 Cs-137 <1.31E-02 0.00E+00 1.31E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 5.17E-01 2.87E-01 3.05E-01 Sample ID: 353995 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.51E-02 0.00E+00 1.51E-02 Cs-134 <2.41E-02 0.00E+00 2.41E-02 Cs-137 <1.43E-02 0.00E+00 1.43E-02 Be-7 <9.00E-02 0.00E+00 9.00E-02 K-40 <4.51E-01 0.00E+00 4.51E-01 Sample ID: 354416 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <2.58E-02 0.00E+00 2.58E-02 Cs-137 <2.13E-02 0.00E+00 2.13E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 3.48E-01 2.14E-01 1.96E-01 Sample ID: 354727 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.45E-02 0.00E+00 2.45E-02 Cs-134 <2.51E-02 0.00E+00 2.51E-02 Cs-137 <2.46E-02 0.00E+00 2.46E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 3.22E-01 3.10E-01 4.74E-01 Sample ID: 355102 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.19E-02 0.00E+00 2.19E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 5.37E-01 2.93E-01 3.09E-01 Sample ID: 355601 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.43E-02 0.00E+00 2.43E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 6.27E-01 3.10E-01 3.07E-01 Sample ID: 356462 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.22E-02 0.00E+00 1.22E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-137 <2.78E-02 0.00E+00 2.78E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 <6.13E-01 0.00E+00 6.13E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 54 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 357012 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.51E-02 0.00E+00 2.51E-02 Cs-134 <1.03E-02 0.00E+00 1.03E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 4.02E-01 2.47E-01 2.62E-01 Sample ID: 358005 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.87E-02 0.00E+00 1.87E-02 Cs-137 <1.31E-02 0.00E+00 1.31E-02 Be-7 <8.31E-02 0.00E+00 8.31E-02 K-40 7.27E-01 3.32E-01 3.09E-01 Sample ID: 358626 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.95E-02 0.00E+00 2.95E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 5.65E-01 3.01E-01 3.19E-01 Sample ID: 359240 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 <6.83E-01 0.00E+00 6.83E-01 Sample ID: 359991 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.93E-02 0.00E+00 1.93E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <2.94E-02 0.00E+00 2.94E-02 Be-7 <8.33E-02 0.00E+00 8.33E-02 K-40 <5.60E-01 0.00E+00 5.60E-01 Sample ID: 360678 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.91E-02 0.00E+00 2.91E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 3.05E-01 2.61E-01 3.70E-01 Sample ID: 361544 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.45E-02 0.00E+00 2.45E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 <5.97E-01 0.00E+00 5.97E-01 Sample ID: 361928 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.71E-02 0.00E+00 2.71E-02 Cs-134 <1.19E-02 0.00E+00 1.19E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 2.30E-01 2.66E-01 4.26E-01 Sample ID: 362744 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.58E-02 0.00E+00 1.58E-02 Cs-134 <1.02E-02 0.00E+00 1.02E-02 Cs-137 <1.02E-02 0.00E+00 1.02E-02 Be-7 <9.49E-02 0.00E+00 9.49E-02 K-40 4.21E-01 2.29E-01 2.35E-01 Sample ID: 363489 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <8.50E-03 0.00E+00 8.50E-03 Cs-134 <7.06E-03 0.00E+00 7.06E-03 Cs-137 <4.58E-03 0.00E+00 4.58E-03 Be-7 <5.22E-02 0.00E+00 5.22E-02 K-40 3.96E-01 1.33E-01 2.83E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 55 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 47 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ]

Sample ID: 363940 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.56E-02 0.00E+00 1.56E-02 Cs-134 <1.16E-02 0.00E+00 1.16E-02 Cs-137 <1.32E-02 0.00E+00 1.32E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 4.43E-01 1.81E-01 4.81E-02 Sample ID: 364471 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.54E-02 0.00E+00 1.54E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 5.12E-01 1.95E-01 4.79E-02 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 280665 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.76E-02 0.00E+00 4.76E-02 Cs-134 <3.20E-02 0.00E+00 3.20E-02 Cs-137 <3.59E-02 0.00E+00 3.59E-02 Be-7 <2.82E-01 0.00E+00 2.82E-01 K-40 9.72E-01 2.36E-01 4.28E-01 Sample ID: 280838 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.92E-02 0.00E+00 4.92E-02 Cs-134 <4.80E-02 0.00E+00 4.80E-02 Cs-137 <3.77E-02 0.00E+00 3.77E-02 Be-7 <3.52E-01 0.00E+00 3.52E-01 K-40 5.70E-01 3.32E-01 4.90E-01 Sample ID: 281197 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.75E-02 0.00E+00 1.75E-02 Cs-137 <2.28E-02 0.00E+00 2.28E-02 Be-7 <1.76E-01 0.00E+00 1.76E-01 K-40 6.00E-01 1.98E-01 4.64E-01 Sample ID: 281518 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.09E-02 0.00E+00 2.09E-02 Cs-134 <2.16E-02 0.00E+00 2.16E-02 Cs-137 <1.85E-02 0.00E+00 1.85E-02 Be-7 <1.65E-01 0.00E+00 1.65E-01 K-40 6.99E-01 1.80E-01 4.32E-01 Sample ID: 282141 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.41E-02 0.00E+00 2.41E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 1.19E+00 1.83E-01 6.44E-02 Sample ID: 282953 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.23E-02 0.00E+00 1.23E-02 Cs-134 <1.08E-02 0.00E+00 1.08E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 <8.34E-02 0.00E+00 8.34E-02 K-40 5.70E-01 9.21E-02 1.11E-01 Sample ID: 283400 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.22E-02 0.00E+00 1.22E-02 Cs-134 <1.37E-02 0.00E+00 1.37E-02 Cs-137 <1.41E-02 0.00E+00 1.41E-02 Be-7 <8.72E-02 0.00E+00 8.72E-02 K-40 3.30E-01 1.08E-01 1.98E-01 Sample ID: 284567 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.05E-02 0.00E+00 1.05E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <8.79E-03 0.00E+00 8.79E-03 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 56 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 284567 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <5.25E-02 0.00E+00 5.25E-02 K-40 6.72E-01 8.97E-02 8.76E-02 Sample ID: 285128 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <1.47E-02 0.00E+00 1.47E-02 Cs-137 <1.54E-02 0.00E+00 1.54E-02 Be-7 <1.75E-01 0.00E+00 1.75E-01 K-40 4.90E-01 1.19E-01 3.21E-01 Sample ID: 285733 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.56E-02 0.00E+00 1.56E-02 Cs-134 <7.42E-03 0.00E+00 7.42E-03 Cs-137 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 2.80E-01 1.30E-01 1.97E-01 Sample ID: 286237 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.45E-02 0.00E+00 2.45E-02 Cs-134 <2.14E-02 0.00E+00 2.14E-02 Cs-137 <1.22E-02 0.00E+00 1.22E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 4.58E-01 1.14E-01 2.05E-01 Sample ID: 287122 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.10E-02 0.00E+00 1.10E-02 Cs-134 <1.09E-02 0.00E+00 1.09E-02 Cs-137 <8.08E-03 0.00E+00 8.08E-03 Be-7 <7.70E-02 0.00E+00 7.70E-02 K-40 6.48E-01 1.05E-01 1.27E-01 Sample ID: 288373 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.00E-02 0.00E+00 3.00E-02 Cs-134 <1.78E-02 0.00E+00 1.78E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 4.85E-01 1.18E-01 7.72E-02 Sample ID: 289097 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.30E-02 0.00E+00 1.30E-02 Cs-134 <9.05E-03 0.00E+00 9.05E-03 Cs-137 <1.27E-02 0.00E+00 1.27E-02 Be-7 <7.52E-02 0.00E+00 7.52E-02 K-40 3.92E-01 8.99E-02 1.26E-01 Sample ID: 289483 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <2.00E-02 0.00E+00 2.00E-02 Cs-137 <2.84E-02 0.00E+00 2.84E-02 Be-7 7.60E-02 4.02E-02 1.92E-01 K-40 5.03E-01 1.50E-01 3.31E-01 Sample ID: 289893 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.09E-02 0.00E+00 2.09E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 3.98E-01 1.06E-01 2.57E-01 Sample ID: 291498 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.61E-02 0.00E+00 2.61E-02 Cs-134 <2.03E-02 0.00E+00 2.03E-02 Cs-137 <1.65E-02 0.00E+00 1.65E-02 Be-7 <1.36E-01 0.00E+00 1.36E-01 K-40 6.46E-01 1.60E-01 2.15E-01 Sample ID: 292792 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.24E-02 0.00E+00 1.24E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 57 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 292792 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <5.62E-02 0.00E+00 5.62E-02 K-40 1.92E-01 1.11E-01 2.36E-01 Sample ID: 293054 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.26E-02 0.00E+00 2.26E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <1.95E-02 0.00E+00 1.95E-02 Be-7 <1.71E-01 0.00E+00 1.71E-01 K-40 3.26E-01 1.41E-01 2.03E-01 Sample ID: 294685 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.59E-02 0.00E+00 1.59E-02 Cs-134 <1.13E-02 0.00E+00 1.13E-02 Cs-137 <1.84E-02 0.00E+00 1.84E-02 Be-7 <1.09E-01 0.00E+00 1.09E-01 K-40 <3.57E-01 0.00E+00 3.57E-01 Sample ID: 295194 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.32E-02 0.00E+00 2.32E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.37E-02 0.00E+00 1.37E-02 Be-7 <1.11E-01 0.00E+00 1.11E-01 K-40 3.24E-01 9.00E-02 2.37E-01 Sample ID: 295455 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.77E-02 0.00E+00 2.77E-02 Cs-134 <2.04E-02 0.00E+00 2.04E-02 Cs-137 <3.25E-02 0.00E+00 3.25E-02 Be-7 <1.80E-01 0.00E+00 1.80E-01 K-40 <5.45E-01 0.00E+00 5.45E-01 Sample ID: 295970 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.22E-02 0.00E+00 2.22E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <1.88E-01 0.00E+00 1.88E-01 K-40 5.96E-01 1.76E-01 3.11E-01 Sample ID: 296215 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <1.81E-02 0.00E+00 1.81E-02 Be-7 <1.29E-01 0.00E+00 1.29E-01 K-40 8.66E-01 1.44E-01 6.50E-02 Sample ID: 296736 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <2.05E-02 0.00E+00 2.05E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.59E-01 0.00E+00 1.59E-01 K-40 6.57E-01 1.37E-01 7.72E-02 Sample ID: 296963 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <2.05E-02 0.00E+00 2.05E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 3.10E-01 1.21E-01 2.14E-01 Sample ID: 297360 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <2.36E-02 0.00E+00 2.36E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 4.57E-01 1.14E-01 3.10E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 58 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 297648 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <7.60E-03 0.00E+00 7.60E-03 Cs-137 <8.71E-03 0.00E+00 8.71E-03 Be-7 <5.78E-02 0.00E+00 5.78E-02 K-40 3.69E-01 1.32E-01 3.03E-02 Sample ID: 298184 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.71E-02 0.00E+00 4.71E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.85E-01 0.00E+00 1.85E-01 K-40 3.48E-01 2.52E-01 3.20E-01 Sample ID: 350185 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.75E-02 0.00E+00 2.75E-02 Cs-134 <2.36E-02 0.00E+00 2.36E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 5.35E-01 2.56E-01 8.06E-02 Sample ID: 350926 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.85E-02 0.00E+00 1.85E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 2.65E-01 2.01E-01 2.31E-01 Sample ID: 351172 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.15E-02 0.00E+00 2.15E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 <4.95E-01 0.00E+00 4.95E-01 Sample ID: 351548 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <2.56E-02 0.00E+00 2.56E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 3.82E-01 2.42E-01 2.58E-01 Sample ID: 353401 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.63E-02 0.00E+00 2.63E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <1.62E-02 0.00E+00 1.62E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 8.24E-01 3.79E-01 4.16E-01 Sample ID: 354000 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <2.36E-02 0.00E+00 2.36E-02 Cs-137 <1.11E-02 0.00E+00 1.11E-02 Be-7 <8.85E-02 0.00E+00 8.85E-02 K-40 6.09E-01 2.54E-01 6.88E-02 Sample ID: 354418 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <2.35E-02 0.00E+00 2.35E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 4.25E-01 2.63E-01 2.84E-01 Sample ID: 354729 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.36E-02 0.00E+00 2.36E-02 Cs-134 <2.78E-02 0.00E+00 2.78E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 2.40E-01 2.11E-01 2.86E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 59 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 355106 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 <5.18E-01 0.00E+00 5.18E-01 Sample ID: 355603 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.60E-02 0.00E+00 2.60E-02 Cs-134 <2.24E-02 0.00E+00 2.24E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 3.83E-01 2.36E-01 2.40E-01 Sample ID: 356464 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.81E-02 0.00E+00 1.81E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 <5.98E-01 0.00E+00 5.98E-01 Sample ID: 357014 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <1.86E-02 0.00E+00 1.86E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 7.14E-01 2.98E-01 8.06E-02 Sample ID: 358007 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.18E-02 0.00E+00 2.18E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 <5.59E-01 0.00E+00 5.59E-01 Sample ID: 358628 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.70E-01 0.00E+00 1.70E-01 K-40 4.75E-01 2.41E-01 8.05E-02 Sample ID: 359243 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.17E-02 0.00E+00 2.17E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 6.06E-01 3.00E-01 2.86E-01 Sample ID: 359993 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.89E-02 0.00E+00 2.89E-02 Cs-134 <3.83E-03 0.00E+00 3.83E-03 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.89E-01 0.00E+00 1.89E-01 K-40 4.91E-01 2.71E-01 2.72E-01 Sample ID: 360680 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.67E-02 0.00E+00 2.67E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <4.76E-03 0.00E+00 4.76E-03 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 3.95E-01 2.65E-01 3.26E-01 Sample ID: 361546 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.05E-02 0.00E+00 2.05E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.85E-01 0.00E+00 1.85E-01 K-40 7.43E-01 3.04E-01 8.06E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 60 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 361930 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.44E-02 0.00E+00 3.44E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-137 <1.81E-02 0.00E+00 1.81E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 6.34E-01 2.78E-01 2.54E-01 Sample ID: 362746 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.67E-02 0.00E+00 2.67E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <1.87E-02 0.00E+00 1.87E-02 Be-7 <1.41E-01 0.00E+00 1.41E-01 K-40 6.46E-01 2.69E-01 7.30E-02 Sample ID: 363491 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.36E-02 0.00E+00 1.36E-02 Cs-134 <1.14E-02 0.00E+00 1.14E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <6.56E-02 0.00E+00 6.56E-02 K-40 5.33E-01 2.32E-01 2.79E-01 Sample ID: 363942 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.99E-02 0.00E+00 1.99E-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 <1.20E-01 0.00E+00 1.20E-01 K-40 5.14E-01 1.96E-01 4.80E-02 Sample ID: 364473 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <6.72E-02 0.00E+00 6.72E-02 K-40 5.79E-01 2.49E-01 2.73E-01 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 280666 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.07E-02 0.00E+00 5.07E-02 Cs-134 <3.63E-02 0.00E+00 3.63E-02 Cs-137 <4.69E-02 0.00E+00 4.69E-02 Be-7 <3.32E-01 0.00E+00 3.32E-01 K-40 8.18E-01 2.27E-01 4.74E-01 Sample ID: 280839 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <6.18E-02 0.00E+00 6.18E-02 Cs-134 <3.52E-02 0.00E+00 3.52E-02 Cs-137 <4.88E-02 0.00E+00 4.88E-02 Be-7 <2.93E-01 0.00E+00 2.93E-01 K-40 <1.30E+00 0.00E+00 1.30E+00 Sample ID: 281198 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.48E-02 0.00E+00 4.48E-02 Cs-134 <4.36E-02 0.00E+00 4.36E-02 Cs-137 <4.03E-02 0.00E+00 4.03E-02 Be-7 <2.66E-01 0.00E+00 2.66E-01 K-40 1.30E+00 3.11E-01 5.95E-01 Sample ID: 281519 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.45E-02 0.00E+00 3.45E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <1.87E-02 0.00E+00 1.87E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 4.18E-01 1.89E-01 4.00E-01 Sample ID: 282142 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.34E-02 0.00E+00 4.34E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <3.17E-02 0.00E+00 3.17E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 61 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 90 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 282142 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.90E-01 0.00E+00 2.90E-01 K-40 7.91E-01 2.04E-01 3.79E-01 Sample ID: 282954 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.57E-02 0.00E+00 1.57E-02 Cs-134 <1.14E-02 0.00E+00 1.14E-02 Cs-137 <1.69E-02 0.00E+00 1.69E-02 Be-7 <1.10E-01 0.00E+00 1.10E-01 K-40 3.91E-01 1.47E-01 2.61E-01 Sample ID: 283401 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <9.55E-03 0.00E+00 9.55E-03 Be-7 <7.80E-02 0.00E+00 7.80E-02 K-40 5.24E-01 1.12E-01 2.54E-01 Sample ID: 284568 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.01E-02 0.00E+00 1.01E-02 Cs-134 <7.63E-03 0.00E+00 7.63E-03 Cs-137 <9.72E-03 0.00E+00 9.72E-03 Be-7 <5.84E-02 0.00E+00 5.84E-02 K-40 1.22E-01 8.55E-02 2.14E-01 Sample ID: 285129 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <2.82E-02 0.00E+00 2.82E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 7.49E-01 1.47E-01 2.18E-01 Sample ID: 285734 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <9.49E-03 0.00E+00 9.49E-03 Be-7 <9.85E-02 0.00E+00 9.85E-02 K-40 4.54E-01 1.30E-01 2.26E-01 Sample ID: 286238 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <1.79E-02 0.00E+00 1.79E-02 Cs-137 <2.25E-02 0.00E+00 2.25E-02 Be-7 <1.89E-01 0.00E+00 1.89E-01 K-40 3.72E-01 1.03E-01 2.05E-01 Sample ID: 287123 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.04E-02 0.00E+00 2.04E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 <5.37E-01 0.00E+00 5.37E-01 Sample ID: 288374 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <2.26E-02 0.00E+00 2.26E-02 Cs-137 <1.22E-02 0.00E+00 1.22E-02 Be-7 <1.87E-01 0.00E+00 1.87E-01 K-40 4.85E-01 1.18E-01 2.59E-01 Sample ID: 289098 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.70E-02 0.00E+00 1.70E-02 Cs-134 <1.29E-02 0.00E+00 1.29E-02 Cs-137 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 7.64E-01 1.35E-01 6.45E-02 Sample ID: 289484 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.72E-02 0.00E+00 2.72E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 62 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 90 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 289484 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.68E-01 0.00E+00 1.68E-01 K-40 6.30E-01 1.34E-01 7.74E-02 Sample ID: 289894 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <9.25E-03 0.00E+00 9.25E-03 Cs-137 <1.24E-02 0.00E+00 1.24E-02 Be-7 <9.69E-02 0.00E+00 9.69E-02 K-40 6.09E-01 1.20E-01 2.44E-01 Sample ID: 291499 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.34E-02 0.00E+00 1.34E-02 Cs-134 <9.20E-03 0.00E+00 9.20E-03 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <7.86E-02 0.00E+00 7.86E-02 K-40 4.38E-01 9.66E-02 1.08E-01 Sample ID: 292793 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.88E-02 0.00E+00 1.88E-02 Cs-134 <1.06E-02 0.00E+00 1.06E-02 Cs-137 <1.27E-02 0.00E+00 1.27E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 <4.96E-01 0.00E+00 4.96E-01 Sample ID: 293055 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.47E-02 0.00E+00 1.47E-02 Cs-134 <1.02E-02 0.00E+00 1.02E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 3.21E-01 1.25E-01 1.74E-01 Sample ID: 294686 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.73E-02 0.00E+00 1.73E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.73E-02 0.00E+00 1.73E-02 Be-7 <1.10E-01 0.00E+00 1.10E-01 K-40 6.18E-01 1.21E-01 6.42E-02 Sample ID: 295195 Sample Dates: 5/19/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.29E-02 0.00E+00 1.29E-02 Cs-134 <8.69E-03 0.00E+00 8.69E-03 Cs-137 <7.42E-03 0.00E+00 7.42E-03 Be-7 <5.22E-02 0.00E+00 5.22E-02 K-40 2.48E-01 7.74E-02 1.32E-01 Sample ID: 295456 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.25E-02 0.00E+00 3.25E-02 Cs-134 <1.14E-02 0.00E+00 1.14E-02 Cs-137 <2.10E-02 0.00E+00 2.10E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 5.68E-01 1.38E-01 9.03E-02 Sample ID: 295971 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.41E-02 0.00E+00 1.41E-02 Cs-134 <1.13E-02 0.00E+00 1.13E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <9.84E-02 0.00E+00 9.84E-02 K-40 3.86E-01 9.10E-02 5.80E-02 Sample ID: 296216 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 <6.10E-01 0.00E+00 6.10E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 63 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 90 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 296737 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.23E-02 0.00E+00 2.23E-02 Cs-134 <1.93E-02 0.00E+00 1.93E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 5.71E-01 1.28E-01 7.72E-02 Sample ID: 296964 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.37E-02 0.00E+00 1.37E-02 Cs-134 <1.08E-02 0.00E+00 1.08E-02 Cs-137 <1.42E-02 0.00E+00 1.42E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 7.18E-01 1.31E-01 6.46E-02 Sample ID: 297361 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.65E-02 0.00E+00 1.65E-02 Cs-134 <1.25E-02 0.00E+00 1.25E-02 Cs-137 <1.42E-02 0.00E+00 1.42E-02 Be-7 <2.27E-02 0.00E+00 2.27E-02 K-40 5.18E-01 1.27E-01 2.24E-01 Sample ID: 297649 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.01E-02 0.00E+00 4.01E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 6.82E-01 3.26E-01 3.26E-01 Sample ID: 298185 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.43E-02 0.00E+00 4.43E-02 Cs-134 <1.53E-02 0.00E+00 1.53E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 4.56E-01 2.79E-01 3.25E-01 Sample ID: 350186 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.93E-02 0.00E+00 2.93E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 3.61E-01 2.76E-01 3.76E-01 Sample ID: 350927 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.13E-02 0.00E+00 2.13E-02 Cs-134 <1.81E-02 0.00E+00 1.81E-02 Cs-137 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 <5.46E-01 0.00E+00 5.46E-01 Sample ID: 351173 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 <4.19E-01 0.00E+00 4.19E-01 Sample ID: 351549 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.84E-02 0.00E+00 1.84E-02 Cs-134 <2.56E-02 0.00E+00 2.56E-02 Cs-137 <2.14E-02 0.00E+00 2.14E-02 Be-7 <8.34E-02 0.00E+00 8.34E-02 K-40 4.81E-01 2.44E-01 8.14E-02 Sample ID: 353402 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 6.01E-01 2.97E-01 2.81E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 64 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 90 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 354018 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.15E-02 0.00E+00 2.15E-02 Cs-134 <2.42E-02 0.00E+00 2.42E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <9.07E-02 0.00E+00 9.07E-02 K-40 <4.90E-01 0.00E+00 4.90E-01 Sample ID: 354419 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.02E-02 0.00E+00 1.02E-02 Cs-134 <8.01E-03 0.00E+00 8.01E-03 Cs-137 <5.08E-03 0.00E+00 5.08E-03 Be-7 <4.36E-02 0.00E+00 4.36E-02 K-40 7.07E-01 1.30E-01 9.24E-02 Sample ID: 354730 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.66E-02 0.00E+00 2.66E-02 Cs-134 <2.28E-02 0.00E+00 2.28E-02 Cs-137 <2.32E-02 0.00E+00 2.32E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 3.87E-01 2.17E-01 8.08E-02 Sample ID: 355108 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.19E-02 0.00E+00 2.19E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 3.78E-01 2.56E-01 3.12E-01 Sample ID: 355604 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 4.44E-01 2.50E-01 2.30E-01 Sample ID: 356465 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 5.54E-01 3.16E-01 3.73E-01 Sample ID: 357015 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.25E-02 0.00E+00 2.25E-02 Cs-134 <2.00E-02 0.00E+00 2.00E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.79E-01 0.00E+00 1.79E-01 K-40 6.55E-01 2.85E-01 8.06E-02 Sample ID: 358008 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 4.15E-01 2.25E-01 8.04E-02 Sample ID: 358629 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 5.11E-01 2.85E-01 3.07E-01 Sample ID: 359245 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <8.14E-02 0.00E+00 8.14E-02 K-40 5.05E-01 2.49E-01 8.05E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 65 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 90 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ]

Sample ID: 359994 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.39E-02 0.00E+00 2.39E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <4.77E-03 0.00E+00 4.77E-03 Be-7 <3.07E-02 0.00E+00 3.07E-02 K-40 3.94E-01 2.49E-01 2.75E-01 Sample ID: 360681 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 5.04E-01 2.48E-01 8.03E-02 Sample ID: 361547 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.70E-02 0.00E+00 1.70E-02 Cs-134 <1.10E-02 0.00E+00 1.10E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 <6.36E-02 0.00E+00 6.36E-02 K-40 4.70E-01 1.69E-01 3.86E-02 Sample ID: 361931 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.00E-02 0.00E+00 3.00E-02 Cs-134 <8.16E-03 0.00E+00 8.16E-03 Cs-137 <1.02E-02 0.00E+00 1.02E-02 Be-7 <1.01E-01 0.00E+00 1.01E-01 K-40 <5.32E-01 0.00E+00 5.32E-01 Sample ID: 362747 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.31E-02 0.00E+00 1.31E-02 Cs-134 <5.77E-03 0.00E+00 5.77E-03 Cs-137 <7.98E-03 0.00E+00 7.98E-03 Be-7 <5.34E-02 0.00E+00 5.34E-02 K-40 3.66E-01 1.46E-01 1.32E-01 Sample ID: 363492 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.37E-02 0.00E+00 1.37E-02 Cs-134 <5.06E-03 0.00E+00 5.06E-03 Cs-137 <9.20E-03 0.00E+00 9.20E-03 Be-7 <9.99E-02 0.00E+00 9.99E-02 K-40 2.83E-01 1.67E-01 2.12E-01 Sample ID: 363943 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.99E-02 0.00E+00 1.99E-02 Cs-134 <1.41E-02 0.00E+00 1.41E-02 Cs-137 <1.02E-02 0.00E+00 1.02E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 3.50E-01 2.10E-01 2.73E-01 Sample ID: 364474 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.75E-02 0.00E+00 1.75E-02 Cs-134 <1.33E-02 0.00E+00 1.33E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <8.69E-02 0.00E+00 8.69E-02 K-40 <4.69E-01 0.00E+00 4.69E-01 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 280667 Sample Dates: 12/30/2013 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.64E-02 0.00E+00 4.64E-02 Cs-134 <3.43E-02 0.00E+00 3.43E-02 Cs-137 <3.77E-02 0.00E+00 3.77E-02 Be-7 <3.09E-01 0.00E+00 3.09E-01 K-40 7.31E-01 2.03E-01 5.32E-01 Sample ID: 280840 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.10E-02 0.00E+00 4.10E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <5.02E-02 0.00E+00 5.02E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 66 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 280840 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.29E-01 0.00E+00 3.29E-01 K-40 1.02E+00 2.40E-01 5.13E-01 Sample ID: 281199 Sample Dates: 1/13/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.04E-02 0.00E+00 4.04E-02 Cs-134 <4.39E-02 0.00E+00 4.39E-02 Cs-137 <3.08E-02 0.00E+00 3.08E-02 Be-7 <3.18E-01 0.00E+00 3.18E-01 K-40 9.50E-01 2.84E-01 6.53E-01 Sample ID: 281520 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.62E-02 0.00E+00 2.62E-02 Cs-134 <2.58E-02 0.00E+00 2.58E-02 Cs-137 <3.06E-02 0.00E+00 3.06E-02 Be-7 <2.37E-01 0.00E+00 2.37E-01 K-40 9.92E-01 2.17E-01 4.24E-01 Sample ID: 282143 Sample Dates: 1/27/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <4.63E-02 0.00E+00 4.63E-02 Cs-134 <2.96E-02 0.00E+00 2.96E-02 Cs-137 <3.03E-02 0.00E+00 3.03E-02 Be-7 <2.58E-01 0.00E+00 2.58E-01 K-40 8.16E-01 3.28E-01 6.42E-01 Sample ID: 282955 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.34E-02 0.00E+00 1.34E-02 Cs-134 <9.35E-03 0.00E+00 9.35E-03 Cs-137 <8.29E-03 0.00E+00 8.29E-03 Be-7 <8.45E-02 0.00E+00 8.45E-02 K-40 4.55E-01 7.38E-02 1.30E-01 Sample ID: 283402 Sample Dates: 2/10/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <2.36E-02 0.00E+00 2.36E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 5.12E-01 1.21E-01 2.62E-01 Sample ID: 284569 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.17E-02 0.00E+00 1.17E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <7.54E-02 0.00E+00 7.54E-02 K-40 3.25E-01 8.38E-02 5.85E-02 Sample ID: 285130 Sample Dates: 2/24/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.35E-02 0.00E+00 2.35E-02 Cs-134 <1.27E-02 0.00E+00 1.27E-02 Cs-137 <1.54E-02 0.00E+00 1.54E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 <5.96E-01 0.00E+00 5.96E-01 Sample ID: 285735 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.74E-02 0.00E+00 1.74E-02 Cs-134 <7.39E-03 0.00E+00 7.39E-03 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 5.58E-01 1.39E-01 2.26E-01 Sample ID: 286239 Sample Dates: 3/10/2014 - 3/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.25E-02 0.00E+00 3.25E-02 Cs-134 <1.92E-02 0.00E+00 1.92E-02 Cs-137 <3.24E-02 0.00E+00 3.24E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 <6.66E-01 0.00E+00 6.66E-01 Sample ID: 287124 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.26E-02 0.00E+00 1.26E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 67 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 287124 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <8.52E-03 0.00E+00 8.52E-03 Cs-137 <1.03E-02 0.00E+00 1.03E-02 Be-7 <5.77E-02 0.00E+00 5.77E-02 K-40 4.34E-01 8.02E-02 1.70E-01 Sample ID: 288375 Sample Dates: 3/24/2014 - 3/31/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.25E-02 0.00E+00 2.25E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <2.30E-02 0.00E+00 2.30E-02 Be-7 <9.77E-02 0.00E+00 9.77E-02 K-40 5.14E-01 1.21E-01 2.06E-01 Sample ID: 289099 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.45E-02 0.00E+00 1.45E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <2.38E-02 0.00E+00 2.38E-02 Be-7 <8.35E-02 0.00E+00 8.35E-02 K-40 3.91E-01 1.26E-01 1.76E-01 Sample ID: 289485 Sample Dates: 4/7/2014 - 4/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <1.32E-02 0.00E+00 1.32E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 3.09E-01 1.26E-01 2.56E-01 Sample ID: 289895 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <1.92E-02 0.00E+00 1.92E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 <5.74E-01 0.00E+00 5.74E-01 Sample ID: 291500 Sample Dates: 4/21/2014 - 4/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.25E-02 0.00E+00 3.25E-02 Cs-134 <1.48E-02 0.00E+00 1.48E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 4.29E-01 1.31E-01 7.73E-02 Sample ID: 292794 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <7.87E-03 0.00E+00 7.87E-03 Cs-137 <1.93E-02 0.00E+00 1.93E-02 Be-7 <6.78E-02 0.00E+00 6.78E-02 K-40 6.10E-01 1.20E-01 1.70E-01 Sample ID: 293056 Sample Dates: 5/5/2014 - 5/12/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <3.35E-03 0.00E+00 3.35E-03 Be-7 <7.13E-02 0.00E+00 7.13E-02 K-40 <4.23E-01 0.00E+00 4.23E-01 Sample ID: 294687 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.41E-02 0.00E+00 2.41E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 <6.06E-01 0.00E+00 6.06E-01 Sample ID: 295196 Sample Dates: 5/19/2014 - 5/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <6.04E-02 0.00E+00 6.04E-02 Cs-134 <3.22E-02 0.00E+00 3.22E-02 Cs-137 <5.01E-02 0.00E+00 5.01E-02 Be-7 <3.92E-01 0.00E+00 3.92E-01 K-40 7.26E-01 2.32E-01 3.71E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 68 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 295457 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.96E-02 0.00E+00 2.96E-02 Cs-134 <2.18E-02 0.00E+00 2.18E-02 Cs-137 <2.93E-02 0.00E+00 2.93E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 2.04E-01 1.11E-01 3.11E-01 Sample ID: 295972 Sample Dates: 6/2/2014 - 6/9/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.93E-02 0.00E+00 1.93E-02 Cs-134 <1.17E-02 0.00E+00 1.17E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <9.96E-02 0.00E+00 9.96E-02 K-40 5.24E-01 1.12E-01 1.72E-01 Sample ID: 296217 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <2.06E-02 0.00E+00 2.06E-02 Be-7 <1.12E-01 0.00E+00 1.12E-01 K-40 4.58E-01 1.15E-01 2.08E-01 Sample ID: 296738 Sample Dates: 6/16/2014 - 6/23/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <2.15E-02 0.00E+00 2.15E-02 Cs-137 <1.22E-02 0.00E+00 1.22E-02 Be-7 <1.64E-01 0.00E+00 1.64E-01 K-40 4.29E-01 1.11E-01 2.54E-01 Sample ID: 296965 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.73E-02 0.00E+00 1.73E-02 Cs-134 <1.65E-02 0.00E+00 1.65E-02 Cs-137 <1.80E-02 0.00E+00 1.80E-02 Be-7 <9.53E-02 0.00E+00 9.53E-02 K-40 3.30E-01 1.31E-01 6.46E-02 Sample ID: 297362 Sample Dates: 6/30/2014 - 7/7/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.09E-02 0.00E+00 2.09E-02 Cs-134 <1.74E-02 0.00E+00 1.74E-02 Cs-137 <1.78E-02 0.00E+00 1.78E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 6.27E-01 1.34E-01 3.09E-01 Sample ID: 297650 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD I-131 <5.32E-02 0.00E+00 5.32E-02 Cs-134 <2.14E-02 0.00E+00 2.14E-02 Cs-137 <2.32E-02 0.00E+00 2.32E-02 Be-7 <9.17E-02 0.00E+00 9.17E-02 K-40 5.20E-01 2.80E-01 2.78E-01 Sample ID: 298186 Sample Dates: 7/14/2014 - 7/21/2014 Nuclide Activity Sigma Error 1 LLD I-131 <3.80E-02 0.00E+00 3.80E-02 Cs-134 <1.05E-02 0.00E+00 1.05E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.85E-01 0.00E+00 1.85E-01 K-40 <6.33E-01 0.00E+00 6.33E-01 Sample ID: 350187 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <1.86E-02 0.00E+00 1.86E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <2.00E-01 0.00E+00 2.00E-01 K-40 <7.30E-01 0.00E+00 7.30E-01 Sample ID: 350928 Sample Dates: 7/28/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.71E-02 0.00E+00 2.71E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 4.46E-01 2.85E-01 3.49E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 69 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 351174 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.79E-02 0.00E+00 1.79E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 4.15E-01 2.25E-01 8.04E-02 Sample ID: 351551 Sample Dates: 8/11/2014 - 8/18/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.22E-02 0.00E+00 2.22E-02 Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.78E-01 0.00E+00 1.78E-01 K-40 6.39E-01 3.03E-01 2.69E-01 Sample ID: 353403 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.38E-02 0.00E+00 2.38E-02 Cs-134 <2.54E-02 0.00E+00 2.54E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.69E-01 0.00E+00 1.69E-01 K-40 4.16E-01 2.85E-01 3.67E-01 Sample ID: 354019 Sample Dates: 8/25/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.28E-02 0.00E+00 2.28E-02 Cs-134 <1.36E-02 0.00E+00 1.36E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <1.05E-01 0.00E+00 1.05E-01 K-40 3.38E-01 1.90E-01 7.04E-02 Sample ID: 354420 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.28E-02 0.00E+00 1.28E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 5.47E-01 2.28E-01 2.36E-01 Sample ID: 354731 Sample Dates: 9/8/2014 - 9/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.82E-02 0.00E+00 1.82E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 3.27E-01 2.32E-01 2.77E-01 Sample ID: 355110 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 3.76E-01 2.89E-01 4.01E-01 Sample ID: 355605 Sample Dates: 9/22/2014 - 9/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.17E-02 0.00E+00 2.17E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.47E-01 0.00E+00 1.47E-01 K-40 <5.40E-01 0.00E+00 5.40E-01 Sample ID: 356466 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.83E-02 0.00E+00 1.83E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 3.19E-01 2.68E-01 3.82E-01 Sample ID: 357016 Sample Dates: 10/6/2014 - 10/13/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.60E-02 0.00E+00 1.60E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 4.75E-01 2.41E-01 8.05E-02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 70 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 358009 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.67E-02 0.00E+00 2.67E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 <5.18E-01 0.00E+00 5.18E-01 Sample ID: 358630 Sample Dates: 10/20/2014 - 10/27/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.37E-02 0.00E+00 2.37E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.36E-01 0.00E+00 1.36E-01 K-40 5.05E-01 2.49E-01 8.05E-02 Sample ID: 359247 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD I-131 <6.07E-03 0.00E+00 6.07E-03 Cs-134 <3.36E-03 0.00E+00 3.36E-03 Cs-137 <4.36E-03 0.00E+00 4.36E-03 Be-7 <3.36E-02 0.00E+00 3.36E-02 K-40 4.67E-01 9.32E-02 6.50E-02 Sample ID: 359995 Sample Dates: 11/3/2014 - 11/10/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.59E-02 0.00E+00 2.59E-02 Cs-134 <1.31E-02 0.00E+00 1.31E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.60E-01 0.00E+00 1.60E-01 K-40 5.21E-01 2.78E-01 2.70E-01 Sample ID: 360682 Sample Dates: 11/10/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.22E-02 0.00E+00 2.22E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 5.91E-01 3.80E-01 5.22E-01 Sample ID: 361548 Sample Dates: 11/17/2014 - 11/24/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.07E-02 0.00E+00 2.07E-02 Cs-134 <1.04E-02 0.00E+00 1.04E-02 Cs-137 <1.36E-02 0.00E+00 1.36E-02 Be-7 <7.10E-02 0.00E+00 7.10E-02 K-40 6.50E-01 2.15E-01 1.67E-01 Sample ID: 361932 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.77E-02 0.00E+00 2.77E-02 Cs-134 <1.19E-02 0.00E+00 1.19E-02 Cs-137 <1.28E-02 0.00E+00 1.28E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 5.34E-01 2.32E-01 6.57E-02 Sample ID: 362748 Sample Dates: 12/1/2014 - 12/8/2014 Nuclide Activity Sigma Error 1 LLD I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.75E-02 0.00E+00 1.75E-02 Cs-137 <1.81E-02 0.00E+00 1.81E-02 Be-7 <1.16E-01 0.00E+00 1.16E-01 K-40 5.10E-01 2.26E-01 6.58E-02 Sample ID: 363493 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.08E-02 0.00E+00 1.08E-02 Cs-134 <9.02E-03 0.00E+00 9.02E-03 Cs-137 <1.03E-02 0.00E+00 1.03E-02 Be-7 <9.19E-02 0.00E+00 9.19E-02 K-40 5.48E-01 2.01E-01 1.77E-01 Sample ID: 363944 Sample Dates: 12/15/2014 - 12/22/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.85E-02 0.00E+00 1.85E-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 <8.64E-02 0.00E+00 8.64E-02 K-40 4.54E-01 2.44E-01 3.13E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 71 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 91 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ]

Sample ID: 364475 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD I-131 <1.77E-02 0.00E+00 1.77E-02 Cs-134 <1.07E-02 0.00E+00 1.07E-02 Cs-137 <1.44E-02 0.00E+00 1.44E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 6.93E-01 2.44E-01 1.87E-01 Media Type: AQUATIC VEGETATION Concentration (Activity): pCi/kg wet 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 357354 Sample Dates: 9/30/2014 - 9/30/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <1.44E+01 0.00E+00 1.44E+01 Co-58 <1.79E+01 0.00E+00 1.79E+01 Fe-59 <3.08E+01 0.00E+00 3.08E+01 Co-60 <1.98E+01 0.00E+00 1.98E+01 Zn-65 <4.24E+01 0.00E+00 4.24E+01 Zr-95 <3.70E+01 0.00E+00 3.70E+01 Nb-95 <1.74E+01 0.00E+00 1.74E+01 I-131 <1.85E+01 0.00E+00 1.85E+01 Cs-134 <1.94E+01 0.00E+00 1.94E+01 Cs-137 <1.97E+01 0.00E+00 1.97E+01 BaLa-140 <1.74E+01 0.00E+00 1.74E+01 Be-7 1.86E+02 1.44E+02 2.25E+02 K-40 1.37E+03 3.53E+02 3.42E+02 Sample Point 41 [ INDICATOR - S @ 3.8 miles ]

Sample ID: 357355 Sample Dates: 9/30/2014 - 9/30/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <2.18E+01 0.00E+00 2.18E+01 Co-58 <2.26E+01 0.00E+00 2.26E+01 Fe-59 <2.12E+01 0.00E+00 2.12E+01 Co-60 <2.02E+01 0.00E+00 2.02E+01 Zn-65 <4.54E+01 0.00E+00 4.54E+01 Zr-95 <3.22E+01 0.00E+00 3.22E+01 Nb-95 <2.00E+01 0.00E+00 2.00E+01 I-131 <2.05E+01 0.00E+00 2.05E+01 Cs-134 <1.97E+01 0.00E+00 1.97E+01 Cs-137 <1.79E+01 0.00E+00 1.79E+01 BaLa-140 <2.38E+01 0.00E+00 2.38E+01 Be-7 2.53E+02 1.33E+02 1.83E+02 K-40 1.48E+03 3.78E+02 2.55E+02 Sample Point 61 [ CONTROL - E @ 2.5 miles ]

Sample ID: 357356 Sample Dates: 9/30/2014 - 9/30/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.95E+00 0.00E+00 6.95E+00 Co-58 <1.09E+01 0.00E+00 1.09E+01 Fe-59 <2.48E+01 0.00E+00 2.48E+01 Co-60 <1.41E+01 0.00E+00 1.41E+01 Zn-65 <2.86E+01 0.00E+00 2.86E+01 Zr-95 <1.95E+01 0.00E+00 1.95E+01 Nb-95 <1.32E+01 0.00E+00 1.32E+01 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <1.38E+01 0.00E+00 1.38E+01 Cs-137 <1.61E+01 0.00E+00 1.61E+01 BaLa-140 <1.21E+01 0.00E+00 1.21E+01 Be-7 1.01E+02 9.77E+01 1.57E+02 K-40 1.19E+03 2.44E+02 1.83E+02 Media Type: CROPS Concentration (Activity): pCi/kg wet 5 Sample Point 5 [ CONTROL - NNW @ 12 miles ]

Sample ID: 294642 Sample Dates: 7/14/2014 - 7/14/2014 TOMATOES Nuclide Activity Sigma Error 1 LLD I-131 <3.23E+01 0.00E+00 3.23E+01 Cs-134 <1.44E+01 0.00E+00 1.44E+01 Cs-137 <1.92E+01 0.00E+00 1.92E+01 Be-7 <1.24E+02 0.00E+00 1.24E+02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 72 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: CROPS Concentration (Activity): pCi/kg wet 5 Sample Point 5 [ CONTROL - NNW @ 12 miles ]

Sample ID: 294642 Sample Dates: 7/14/2014 - 7/14/2014 TOMATOES Nuclide Activity Sigma Error 1 LLD K-40 2.98E+03 4.76E+02 1.86E+02 Sample ID: 351557 Sample Dates: 8/11/2014 - 8/11/2014 TOMATOES Nuclide Activity Sigma Error 1 LLD I-131 <2.02E+01 0.00E+00 2.02E+01 Cs-134 <1.65E+01 0.00E+00 1.65E+01 Cs-137 <2.27E+01 0.00E+00 2.27E+01 Be-7 <1.41E+02 0.00E+00 1.41E+02 K-40 2.50E+03 5.37E+02 3.65E+02 Sample Point 97 [ CONTROL - NW @ 19.1 miles ]

Sample ID: 298315 Sample Dates: 7/7/2014 - 7/7/2014 SQUASH Nuclide Activity Sigma Error 1 LLD I-131 <3.07E+01 0.00E+00 3.07E+01 Cs-134 <9.41E+00 0.00E+00 9.41E+00 Cs-137 <1.48E+01 0.00E+00 1.48E+01 Be-7 <1.17E+02 0.00E+00 1.17E+02 K-40 1.69E+03 3.02E+02 1.64E+02 Sample ID: 298293 Sample Dates: 7/7/2014 - 7/7/2014 CUCUMBERS Nuclide Activity Sigma Error 1 LLD I-131 <4.28E+01 0.00E+00 4.28E+01 Cs-134 <1.15E+01 0.00E+00 1.15E+01 Cs-137 <1.29E+01 0.00E+00 1.29E+01 Be-7 <1.05E+02 0.00E+00 1.05E+02 K-40 1.63E+03 2.91E+02 1.26E+02 Sample ID: 298316 Sample Dates: 7/7/2014 - 7/7/2014 ZUCCHINI Nuclide Activity Sigma Error 1 LLD I-131 <3.77E+01 0.00E+00 3.77E+01 Cs-134 <1.11E+01 0.00E+00 1.11E+01 Cs-137 <1.25E+01 0.00E+00 1.25E+01 Be-7 <1.03E+02 0.00E+00 1.03E+02 K-40 1.69E+03 3.07E+02 2.12E+02 Sample ID: 354253 Sample Dates: 8/19/2014 - 8/19/2014 TOMATOES Nuclide Activity Sigma Error 1 LLD I-131 <1.28E+01 0.00E+00 1.28E+01 Cs-134 <1.63E+01 0.00E+00 1.63E+01 Cs-137 <1.40E+01 0.00E+00 1.40E+01 Be-7 <9.95E+01 0.00E+00 9.95E+01 K-40 1.96E+03 3.31E+02 1.27E+02 Sample ID: 354255 Sample Dates: 8/19/2014 - 8/19/2014 CUCUMBERS Nuclide Activity Sigma Error 1 LLD I-131 <1.44E+01 0.00E+00 1.44E+01 Cs-134 <1.37E+01 0.00E+00 1.37E+01 Cs-137 <1.42E+01 0.00E+00 1.42E+01 Be-7 <1.07E+02 0.00E+00 1.07E+02 K-40 1.19E+03 2.67E+02 1.95E+02 Sample ID: 354254 Sample Dates: 8/19/2014 - 8/19/2014 OKRA Nuclide Activity Sigma Error 1 LLD I-131 <2.42E+01 0.00E+00 2.42E+01 Cs-134 <3.55E+01 0.00E+00 3.55E+01 Cs-137 <2.56E+01 0.00E+00 2.56E+01 Be-7 <1.79E+02 0.00E+00 1.79E+02 K-40 2.46E+03 5.89E+02 3.15E+02 Sample ID: 355354 Sample Dates: 9/16/2014 - 9/16/2014 EGGPLANT Nuclide Activity Sigma Error 1 LLD I-131 <1.56E+01 0.00E+00 1.56E+01 Cs-134 <1.71E+01 0.00E+00 1.71E+01 Cs-137 <1.57E+01 0.00E+00 1.57E+01 Be-7 <1.15E+02 0.00E+00 1.15E+02 K-40 2.52E+03 5.02E+02 3.45E+02 Sample ID: 354741 Sample Dates: 9/16/2014 - 9/16/2014 OKRA Nuclide Activity Sigma Error 1 LLD I-131 <1.46E+01 0.00E+00 1.46E+01 Cs-134 <2.67E+01 0.00E+00 2.67E+01 Cs-137 <1.85E+01 0.00E+00 1.85E+01 Be-7 <1.28E+02 0.00E+00 1.28E+02 K-40 2.18E+03 4.72E+02 2.47E+02 Sample ID: 358022 Sample Dates: 10/14/2014 - 10/14/2014 TURNIPSGRE Nuclide Activity Sigma Error 1 LLD I-131 <1.61E+01 0.00E+00 1.61E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 73 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: CROPS Concentration (Activity): pCi/kg wet 97 Sample Point 97 [ CONTROL - NW @ 19.1 miles ]

Sample ID: 358022 Sample Dates: 10/14/2014 - 10/14/2014 TURNIPSGRE Nuclide Activity Sigma Error 1 LLD Cs-134 <2.07E+01 0.00E+00 2.07E+01 Cs-137 <1.92E+01 0.00E+00 1.92E+01 Be-7 <1.59E+02 0.00E+00 1.59E+02 K-40 2.37E+03 4.24E+02 1.94E+02 Sample ID: 358023 Sample Dates: 10/14/2014 - 10/14/2014 RADISHES Nuclide Activity Sigma Error 1 LLD I-131 <1.48E+01 0.00E+00 1.48E+01 Cs-134 <1.21E+01 0.00E+00 1.21E+01 Cs-137 <1.23E+01 0.00E+00 1.23E+01 Be-7 <9.16E+01 0.00E+00 9.16E+01 K-40 2.43E+03 3.00E+02 1.74E+02 Sample ID: 358024 Sample Dates: 10/14/2014 - 10/14/2014 MUSTGREENS Nuclide Activity Sigma Error 1 LLD I-131 <3.85E+01 0.00E+00 3.85E+01 Cs-134 <2.16E+01 0.00E+00 2.16E+01 Cs-137 <4.22E+01 0.00E+00 4.22E+01 Be-7 <3.94E+02 0.00E+00 3.94E+02 K-40 3.58E+03 8.95E+02 7.70E+02 Sample ID: 360688 Sample Dates: 11/11/2014 - 11/11/2014 COLLARDS Nuclide Activity Sigma Error 1 LLD I-131 <1.03E+01 0.00E+00 1.03E+01 Cs-134 <1.19E+01 0.00E+00 1.19E+01 Cs-137 <9.65E+00 0.00E+00 9.65E+00 Be-7 9.03E+01 6.67E+01 1.05E+02 K-40 4.31E+03 4.76E+02 2.87E+02 Sample ID: 360686 Sample Dates: 11/11/2014 - 11/11/2014 LETTUCE Nuclide Activity Sigma Error 1 LLD I-131 <1.86E+01 0.00E+00 1.86E+01 Cs-134 <2.23E+01 0.00E+00 2.23E+01 Cs-137 <2.08E+01 0.00E+00 2.08E+01 Be-7 <1.47E+02 0.00E+00 1.47E+02 K-40 2.33E+03 4.28E+02 2.25E+02 Sample ID: 360687 Sample Dates: 11/11/2014 - 11/11/2014 TURNIPGREE Nuclide Activity Sigma Error 1 LLD I-131 <2.75E+01 0.00E+00 2.75E+01 Cs-134 <2.22E+01 0.00E+00 2.22E+01 Cs-137 <2.53E+01 0.00E+00 2.53E+01 Be-7 1.41E+02 1.62E+02 2.63E+02 K-40 2.83E+03 6.08E+02 4.67E+02 Sample ID: 363497 Sample Dates: 12/16/2014 - 12/16/2014 LETTUCE Nuclide Activity Sigma Error 1 LLD I-131 <2.65E+01 0.00E+00 2.65E+01 Cs-134 <3.63E+01 0.00E+00 3.63E+01 Cs-137 <3.69E+01 0.00E+00 3.69E+01 Be-7 1.50E+02 1.75E+02 2.85E+02 K-40 4.76E+03 8.26E+02 3.58E+02 Sample ID: 363498 Sample Dates: 12/16/2014 - 12/16/2014 CABBAGE Nuclide Activity Sigma Error 1 LLD I-131 <1.28E+01 0.00E+00 1.28E+01 Cs-134 <1.63E+01 0.00E+00 1.63E+01 Cs-137 <1.46E+01 0.00E+00 1.46E+01 Be-7 7.67E+01 7.94E+01 1.28E+02 K-40 2.53E+03 3.95E+02 2.41E+02 Sample ID: 363499 Sample Dates: 12/16/2014 - 12/16/2014 COLLARDS Nuclide Activity Sigma Error 1 LLD I-131 <1.72E+01 0.00E+00 1.72E+01 Cs-134 <1.95E+01 0.00E+00 1.95E+01 Cs-137 <2.45E+01 0.00E+00 2.45E+01 Be-7 3.01E+02 1.72E+02 2.57E+02 K-40 4.71E+03 6.68E+02 2.57E+02 Media Type: DRINKING WATER Concentration (Activity): pCi/l 51 Sample Point 51 [ INDICATOR - -- @ 0 miles ]

Sample ID: 281702 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.86E+00 0.00E+00 3.86E+00 K-40 1.52E+01 2.42E+00 5.24E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 74 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l 51 Sample Point 51 [ INDICATOR - -- @ 0 miles ]

Sample ID: 281702 Sample Dates: 1/6/2014 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.45E-01 0.00E+00 6.45E-01 Sample ID: 283027 Sample Dates: 1/20/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.10E+00 0.00E+00 3.10E+00 K-40 9.88E+00 1.94E+00 6.32E+00 LLI-131 <6.10E-01 0.00E+00 6.10E-01 Sample ID: 283031 Sample Dates: 1/6/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.48E+00 4.12E-01 1.21E+00 Mn-54 <6.09E+00 0.00E+00 6.09E+00 Co-58 <6.05E+00 0.00E+00 6.05E+00 Fe-59 <1.15E+01 0.00E+00 1.15E+01 Co-60 <3.38E+00 0.00E+00 3.38E+00 Zn-65 <1.16E+01 0.00E+00 1.16E+01 Zr-95 <1.03E+01 0.00E+00 1.03E+01 Nb-95 <5.65E+00 0.00E+00 5.65E+00 I-131 <1.38E+01 0.00E+00 1.38E+01 Cs-134 <4.39E+00 0.00E+00 4.39E+00 Cs-137 <4.69E+00 0.00E+00 4.69E+00 BaLa-140 <1.43E+01 0.00E+00 1.43E+01 Be-7 <5.15E+01 0.00E+00 5.15E+01 K-40 1.82E+02 2.86E+01 3.78E+01 H3DW 7.17E+03 1.20E+02 1.53E+02 Sample ID: 284714 Sample Dates: 2/3/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <4.08E+00 0.00E+00 4.08E+00 K-40 3.37E+01 3.92E+00 6.32E+00 LLI-131 <5.70E-01 0.00E+00 5.70E-01 Sample ID: 286056 Sample Dates: 2/17/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.22E+00 0.00E+00 3.22E+00 K-40 1.92E+01 3.95E+00 4.53E+00 LLI-131 <4.85E-01 0.00E+00 4.85E-01 Sample ID: 287389 Sample Dates: 3/3/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.06E+00 0.00E+00 2.06E+00 K-40 2.01E+01 2.48E+00 2.86E+00 LLI-131 <6.28E-01 0.00E+00 6.28E-01 Sample ID: 289228 Sample Dates: 3/17/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.15E+00 0.00E+00 3.15E+00 K-40 1.98E+01 2.66E+00 4.53E+00 LLI-131 <5.30E-01 0.00E+00 5.30E-01 Sample ID: 289232 Sample Dates: 3/3/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.27E+00 3.86E-01 1.13E+00 Mn-54 <3.73E+00 0.00E+00 3.73E+00 Co-58 <3.65E+00 0.00E+00 3.65E+00 Fe-59 <7.96E+00 0.00E+00 7.96E+00 Co-60 <5.04E+00 0.00E+00 5.04E+00 Zn-65 <9.48E+00 0.00E+00 9.48E+00 Zr-95 <7.21E+00 0.00E+00 7.21E+00 Nb-95 <4.61E+00 0.00E+00 4.61E+00 I-131 <1.12E+01 0.00E+00 1.12E+01 Cs-134 <3.11E+00 0.00E+00 3.11E+00 Cs-137 <4.60E+00 0.00E+00 4.60E+00 BaLa-140 <1.02E+01 0.00E+00 1.02E+01 Be-7 <3.60E+01 0.00E+00 3.60E+01 K-40 1.38E+02 2.94E+01 4.17E+01 H3DW 6.53E+03 1.26E+02 1.87E+02 Sample ID: 290002 Sample Dates: 3/31/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.43E+00 0.00E+00 3.43E+00 K-40 2.28E+01 2.97E+00 5.69E+00 LLI-131 <6.45E-01 0.00E+00 6.45E-01 Sample ID: 292887 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.02E+00 0.00E+00 3.02E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 75 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l 51 Sample Point 51 [ INDICATOR - -- @ 0 miles ]

Sample ID: 292887 Sample Dates: 4/14/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD K-40 9.39E+00 3.45E+00 5.30E+00 LLI-131 <5.72E-01 0.00E+00 5.72E-01 Sample ID: 292891 Sample Dates: 3/31/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.29E+00 4.36E-01 1.42E+00 Mn-54 <4.16E+00 0.00E+00 4.16E+00 Co-58 <5.02E+00 0.00E+00 5.02E+00 Fe-59 <1.21E+01 0.00E+00 1.21E+01 Co-60 <5.38E+00 0.00E+00 5.38E+00 Zn-65 <1.06E+01 0.00E+00 1.06E+01 Zr-95 <1.09E+01 0.00E+00 1.09E+01 Nb-95 <6.76E+00 0.00E+00 6.76E+00 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <4.83E+00 0.00E+00 4.83E+00 Cs-137 <5.76E+00 0.00E+00 5.76E+00 BaLa-140 <1.13E+01 0.00E+00 1.13E+01 Be-7 <5.69E+01 0.00E+00 5.69E+01 K-40 1.05E+02 1.95E+01 5.87E+01 H3DW 5.98E+03 1.23E+02 1.89E+02 Sample ID: 294855 Sample Dates: 4/28/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.38E+00 0.00E+00 3.38E+00 K-40 8.28E+00 2.76E+00 4.90E+00 LLI-131 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 295634 Sample Dates: 5/12/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.59E+00 0.00E+00 2.59E+00 K-40 2.34E+01 2.16E+00 4.12E+00 LLI-131 <4.96E-01 0.00E+00 4.96E-01 Sample ID: 295638 Sample Dates: 4/28/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.20E+00 4.02E-01 1.20E+00 Mn-54 <5.85E+00 0.00E+00 5.85E+00 Co-58 <5.25E+00 0.00E+00 5.25E+00 Fe-59 <1.18E+01 0.00E+00 1.18E+01 Co-60 <7.54E+00 0.00E+00 7.54E+00 Zn-65 <9.09E+00 0.00E+00 9.09E+00 Zr-95 <1.10E+01 0.00E+00 1.10E+01 Nb-95 <5.44E+00 0.00E+00 5.44E+00 I-131 <1.13E+01 0.00E+00 1.13E+01 Cs-134 <4.68E+00 0.00E+00 4.68E+00 Cs-137 <5.77E+00 0.00E+00 5.77E+00 BaLa-140 <1.25E+01 0.00E+00 1.25E+01 Be-7 <4.89E+01 0.00E+00 4.89E+01 K-40 1.20E+02 2.28E+01 5.52E+01 H3DW 5.40E+03 1.19E+02 1.93E+02 Sample ID: 296317 Sample Dates: 5/27/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <4.01E+00 0.00E+00 4.01E+00 K-40 2.33E+01 3.51E+00 4.86E+00 LLI-131 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 297116 Sample Dates: 6/9/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.05E+00 0.00E+00 3.05E+00 K-40 2.12E+01 2.85E+00 3.99E+00 LLI-131 <5.53E-01 0.00E+00 5.53E-01 Sample ID: 297120 Sample Dates: 5/27/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.67E+00 4.02E-01 1.24E+00 Mn-54 <4.85E+00 0.00E+00 4.85E+00 Co-58 <4.88E+00 0.00E+00 4.88E+00 Fe-59 <9.83E+00 0.00E+00 9.83E+00 Co-60 <5.94E+00 0.00E+00 5.94E+00 Zn-65 <1.12E+01 0.00E+00 1.12E+01 Zr-95 <8.57E+00 0.00E+00 8.57E+00 Nb-95 <6.72E+00 0.00E+00 6.72E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <4.76E+00 0.00E+00 4.76E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 76 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l 51 Sample Point 51 [ INDICATOR - -- @ 0 miles ]

Sample ID: 297120 Sample Dates: 5/27/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Cs-137 <6.00E+00 0.00E+00 6.00E+00 BaLa-140 <7.87E+00 0.00E+00 7.87E+00 Be-7 <4.52E+01 0.00E+00 4.52E+01 K-40 7.52E+01 2.91E+01 4.13E+01 H3DW 4.50E+03 1.13E+02 2.00E+02 Sample ID: 297732 Sample Dates: 6/23/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.89E+00 0.00E+00 2.89E+00 K-40 1.52E+01 3.04E+00 3.99E+00 LLI-131 <5.09E-01 0.00E+00 5.09E-01 Sample ID: 350090 Sample Dates: 7/7/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.91E-01 0.00E+00 5.91E-01 Sample ID: 350094 Sample Dates: 6/23/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.22E+00 8.44E-01 1.29E+00 Mn-54 <2.02E+00 0.00E+00 2.02E+00 Co-58 <2.52E+00 0.00E+00 2.52E+00 Fe-59 <6.12E+00 0.00E+00 6.12E+00 Co-60 <2.86E+00 0.00E+00 2.86E+00 Zn-65 <4.66E+00 0.00E+00 4.66E+00 Zr-95 <5.39E+00 0.00E+00 5.39E+00 Nb-95 <3.55E+00 0.00E+00 3.55E+00 I-131 <1.19E+01 0.00E+00 1.19E+01 Cs-134 <2.57E+00 0.00E+00 2.57E+00 Cs-137 <2.79E+00 0.00E+00 2.79E+00 BaLa-140 <7.62E+00 0.00E+00 7.62E+00 Be-7 <2.51E+01 0.00E+00 2.51E+01 K-40 6.96E+01 2.91E+01 4.01E+01 H3DW 4.43E+03 2.12E+02 1.86E+02 Sample ID: 350708 Sample Dates: 7/21/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.26E-01 0.00E+00 6.26E-01 Sample ID: 351591 Sample Dates: 8/4/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.33E-01 0.00E+00 6.33E-01 Sample ID: 351592 Sample Dates: 7/21/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.99E+00 8.30E-01 1.30E+00 Mn-54 <3.72E+00 0.00E+00 3.72E+00 Co-58 <5.15E+00 0.00E+00 5.15E+00 Fe-59 <9.40E+00 0.00E+00 9.40E+00 Co-60 <3.80E+00 0.00E+00 3.80E+00 Zn-65 <1.03E+01 0.00E+00 1.03E+01 Zr-95 <6.77E+00 0.00E+00 6.77E+00 Nb-95 <5.59E+00 0.00E+00 5.59E+00 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <3.73E+00 0.00E+00 3.73E+00 Cs-137 <5.33E+00 0.00E+00 5.33E+00 BaLa-140 <6.49E+00 0.00E+00 6.49E+00 Be-7 <4.92E+01 0.00E+00 4.92E+01 K-40 8.48E+01 4.07E+01 4.82E+01 H3DW 4.12E+03 2.11E+02 1.97E+02 Sample ID: 354051 Sample Dates: 8/18/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.47E-01 0.00E+00 6.47E-01 Sample ID: 354027 Sample Dates: 9/2/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.82E-01 0.00E+00 5.82E-01 Sample ID: 354800 Sample Dates: 8/18/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 9.35E-01 8.73E-01 1.47E+00 Mn-54 <4.29E+00 0.00E+00 4.29E+00 Co-58 <5.29E+00 0.00E+00 5.29E+00 Fe-59 <9.00E+00 0.00E+00 9.00E+00 Co-60 <4.26E+00 0.00E+00 4.26E+00 Zn-65 <7.65E+00 0.00E+00 7.65E+00 Zr-95 <8.75E+00 0.00E+00 8.75E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 77 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l 51 Sample Point 51 [ INDICATOR - -- @ 0 miles ]

Sample ID: 354800 Sample Dates: 8/18/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Nb-95 <5.12E+00 0.00E+00 5.12E+00 I-131 <1.10E+01 0.00E+00 1.10E+01 Cs-134 <5.02E+00 0.00E+00 5.02E+00 Cs-137 <4.33E+00 0.00E+00 4.33E+00 BaLa-140 <8.93E+00 0.00E+00 8.93E+00 Be-7 <3.40E+01 0.00E+00 3.40E+01 K-40 1.74E+02 5.25E+01 5.63E+01 H3DW 3.66E+03 1.97E+02 1.85E+02 Sample ID: 355684 Sample Dates: 9/15/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.27E-01 0.00E+00 6.27E-01 Sample ID: 357087 Sample Dates: 9/29/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.27E-01 0.00E+00 6.27E-01 Sample ID: 357091 Sample Dates: 9/15/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.50E+00 8.76E-01 1.18E+00 Mn-54 <3.54E+00 0.00E+00 3.54E+00 Co-58 <5.33E+00 0.00E+00 5.33E+00 Fe-59 <5.97E+00 0.00E+00 5.97E+00 Co-60 <4.44E+00 0.00E+00 4.44E+00 Zn-65 <9.29E+00 0.00E+00 9.29E+00 Zr-95 <1.00E+01 0.00E+00 1.00E+01 Nb-95 <5.22E+00 0.00E+00 5.22E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <4.65E+00 0.00E+00 4.65E+00 Cs-137 <3.87E+00 0.00E+00 3.87E+00 BaLa-140 <7.66E+00 0.00E+00 7.66E+00 Be-7 <3.31E+01 0.00E+00 3.31E+01 K-40 5.37E+01 2.72E+01 9.09E+00 H3DW 3.59E+03 1.99E+02 1.92E+02 Sample ID: 358638 Sample Dates: 10/13/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.44E-01 0.00E+00 6.44E-01 Sample ID: 360006 Sample Dates: 10/27/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.99E-01 0.00E+00 5.99E-01 Sample ID: 360007 Sample Dates: 10/13/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.69E+00 8.58E-01 1.29E+00 Mn-54 <4.19E+00 0.00E+00 4.19E+00 Co-58 <4.33E+00 0.00E+00 4.33E+00 Fe-59 <9.57E+00 0.00E+00 9.57E+00 Co-60 <4.08E+00 0.00E+00 4.08E+00 Zn-65 <8.74E+00 0.00E+00 8.74E+00 Zr-95 <5.79E+00 0.00E+00 5.79E+00 Nb-95 <4.18E+00 0.00E+00 4.18E+00 I-131 <1.15E+01 0.00E+00 1.15E+01 Cs-134 <3.02E+00 0.00E+00 3.02E+00 Cs-137 <4.27E+00 0.00E+00 4.27E+00 BaLa-140 <1.12E+01 0.00E+00 1.12E+01 Be-7 <3.29E+01 0.00E+00 3.29E+01 K-40 <6.58E+01 0.00E+00 6.58E+01 H3DW 3.57E+03 1.98E+02 1.87E+02 Sample ID: 361556 Sample Dates: 11/11/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.21E-01 0.00E+00 6.21E-01 Sample ID: 362759 Sample Dates: 11/24/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.19E-01 0.00E+00 6.19E-01 Sample ID: 362760 Sample Dates: 11/11/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.38E+00 7.97E-01 1.20E+00 Mn-54 <2.13E+00 0.00E+00 2.13E+00 Co-58 <2.29E+00 0.00E+00 2.29E+00 Fe-59 <5.07E+00 0.00E+00 5.07E+00 Co-60 <2.20E+00 0.00E+00 2.20E+00 Zn-65 <4.08E+00 0.00E+00 4.08E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 78 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l 51 Sample Point 51 [ INDICATOR - -- @ 0 miles ]

Sample ID: 362760 Sample Dates: 11/11/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Zr-95 <4.00E+00 0.00E+00 4.00E+00 Nb-95 <2.92E+00 0.00E+00 2.92E+00 I-131 <1.15E+01 0.00E+00 1.15E+01 Cs-134 <2.30E+00 0.00E+00 2.30E+00 Cs-137 <1.96E+00 0.00E+00 1.96E+00 BaLa-140 <6.07E+00 0.00E+00 6.07E+00 Be-7 <2.09E+01 0.00E+00 2.09E+01 K-40 1.16E+02 2.72E+01 3.21E+01 H3DW 4.17E+03 2.06E+02 1.83E+02 Sample ID: 363952 Sample Dates: 12/8/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.89E-01 0.00E+00 5.89E-01 Sample ID: 364765 Sample Dates: 12/22/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.43E-01 0.00E+00 6.43E-01 Sample ID: 364766 Sample Dates: 12/8/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.40E+00 8.72E-01 1.37E+00 Mn-54 <2.39E+00 0.00E+00 2.39E+00 Co-58 <2.12E+00 0.00E+00 2.12E+00 Fe-59 <4.38E+00 0.00E+00 4.38E+00 Co-60 <2.09E+00 0.00E+00 2.09E+00 Zn-65 <3.37E+00 0.00E+00 3.37E+00 Zr-95 <4.38E+00 0.00E+00 4.38E+00 Nb-95 <2.65E+00 0.00E+00 2.65E+00 I-131 <1.06E+01 0.00E+00 1.06E+01 Cs-134 <2.60E+00 0.00E+00 2.60E+00 Cs-137 <2.23E+00 0.00E+00 2.23E+00 BaLa-140 <6.10E+00 0.00E+00 6.10E+00 Be-7 <1.92E+01 0.00E+00 1.92E+01 K-40 4.20E+01 2.13E+01 2.91E+01 H3DW 3.69E+03 2.07E+02 2.01E+02 Media Type: DW / SW Concentration (Activity): pCi/l 38 Sample Point 38 [ CONTROL - WSW @ 6.2 miles ]

Sample ID: 281704 Sample Dates: 12/30/2013 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.78E+00 0.00E+00 2.78E+00 K-40 3.98E+01 2.95E+00 2.94E+00 LLI-131 <6.49E-01 0.00E+00 6.49E-01 Sample ID: 283029 Sample Dates: 1/13/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.51E+00 0.00E+00 2.51E+00 K-40 3.98E+01 2.87E+00 3.31E+00 LLI-131 <6.18E-01 0.00E+00 6.18E-01 Sample ID: 283033 Sample Dates: 12/30/2013 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.01E+00 4.28E-01 1.22E+00 Mn-54 <3.74E+00 0.00E+00 3.74E+00 Co-58 <4.51E+00 0.00E+00 4.51E+00 Fe-59 <1.01E+01 0.00E+00 1.01E+01 Co-60 <4.02E+00 0.00E+00 4.02E+00 Zn-65 <7.06E+00 0.00E+00 7.06E+00 Zr-95 <6.86E+00 0.00E+00 6.86E+00 Nb-95 <5.63E+00 0.00E+00 5.63E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <3.45E+00 0.00E+00 3.45E+00 Cs-137 <4.45E+00 0.00E+00 4.45E+00 BaLa-140 <1.16E+01 0.00E+00 1.16E+01 Be-7 <3.51E+01 0.00E+00 3.51E+01 K-40 6.05E+01 2.04E+01 4.96E+01 H3DWSW <-5.9E+01 0.00E+00 1.53E+02 Sample ID: 284716 Sample Dates: 1/27/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.47E+00 0.00E+00 2.47E+00 K-40 4.17E+01 2.62E+00 2.62E+00 LLI-131 <6.04E-01 0.00E+00 6.04E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 79 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 38 Sample Point 38 [ CONTROL - WSW @ 6.2 miles ]

Sample ID: 286054 Sample Dates: 2/10/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.10E+00 0.00E+00 2.10E+00 K-40 2.24E+01 1.91E+00 2.41E+00 LLI-131 <6.49E-01 0.00E+00 6.49E-01 Sample ID: 286058 Sample Dates: 1/27/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.30E+00 4.20E-01 1.17E+00 Mn-54 <2.95E+00 0.00E+00 2.95E+00 Co-58 <3.41E+00 0.00E+00 3.41E+00 Fe-59 <6.61E+00 0.00E+00 6.61E+00 Co-60 <3.52E+00 0.00E+00 3.52E+00 Zn-65 <5.84E+00 0.00E+00 5.84E+00 Zr-95 <5.73E+00 0.00E+00 5.73E+00 Nb-95 <4.67E+00 0.00E+00 4.67E+00 I-131 <1.34E+01 0.00E+00 1.34E+01 Cs-134 <3.18E+00 0.00E+00 3.18E+00 Cs-137 <3.28E+00 0.00E+00 3.28E+00 BaLa-140 <4.87E+00 0.00E+00 4.87E+00 Be-7 <3.26E+01 0.00E+00 3.26E+01 K-40 1.75E+02 2.28E+01 3.08E+01 H3DWSW <3.66E+01 0.00E+00 1.53E+02 Sample ID: 287390 Sample Dates: 2/24/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <1.51E+00 0.00E+00 1.51E+00 K-40 3.92E+01 1.70E+00 1.72E+00 LLI-131 <5.91E-01 0.00E+00 5.91E-01 Sample ID: 289230 Sample Dates: 3/10/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.17E+00 0.00E+00 2.17E+00 K-40 3.84E+01 2.19E+00 2.88E+00 LLI-131 <5.06E-01 0.00E+00 5.06E-01 Sample ID: 289234 Sample Dates: 2/24/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.37E+00 4.18E-01 1.15E+00 Mn-54 <3.18E+00 0.00E+00 3.18E+00 Co-58 <3.91E+00 0.00E+00 3.91E+00 Fe-59 <8.42E+00 0.00E+00 8.42E+00 Co-60 <3.20E+00 0.00E+00 3.20E+00 Zn-65 <6.03E+00 0.00E+00 6.03E+00 Zr-95 <5.71E+00 0.00E+00 5.71E+00 Nb-95 <4.81E+00 0.00E+00 4.81E+00 I-131 <1.33E+01 0.00E+00 1.33E+01 Cs-134 <3.07E+00 0.00E+00 3.07E+00 Cs-137 <3.96E+00 0.00E+00 3.96E+00 BaLa-140 <9.54E+00 0.00E+00 9.54E+00 Be-7 <2.95E+01 0.00E+00 2.95E+01 K-40 1.73E+02 2.67E+01 3.50E+01 H3DWSW <1.86E+01 0.00E+00 1.86E+02 Sample ID: 290004 Sample Dates: 3/24/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.19E+00 0.00E+00 2.19E+00 K-40 1.16E+01 2.22E+00 2.71E+00 LLI-131 <4.88E-01 0.00E+00 4.88E-01 Sample ID: 292889 Sample Dates: 4/7/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.39E+00 0.00E+00 2.39E+00 K-40 1.94E+01 2.13E+00 2.99E+00 LLI-131 <5.83E-01 0.00E+00 5.83E-01 Sample ID: 292893 Sample Dates: 3/24/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.70E+00 4.53E-01 1.45E+00 Mn-54 <3.70E+00 0.00E+00 3.70E+00 Co-58 <3.48E+00 0.00E+00 3.48E+00 Fe-59 <5.85E+00 0.00E+00 5.85E+00 Co-60 <2.81E+00 0.00E+00 2.81E+00 Zn-65 <6.18E+00 0.00E+00 6.18E+00 Zr-95 <6.52E+00 0.00E+00 6.52E+00 Nb-95 <4.81E+00 0.00E+00 4.81E+00 I-131 <1.42E+01 0.00E+00 1.42E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 80 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 38 Sample Point 38 [ CONTROL - WSW @ 6.2 miles ]

Sample ID: 292893 Sample Dates: 3/24/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <2.84E+00 0.00E+00 2.84E+00 Cs-137 <3.81E+00 0.00E+00 3.81E+00 BaLa-140 <8.73E+00 0.00E+00 8.73E+00 Be-7 <3.72E+01 0.00E+00 3.72E+01 K-40 <3.36E+01 0.00E+00 3.36E+01 H3DWSW <1.15E+02 0.00E+00 1.90E+02 Sample ID: 294857 Sample Dates: 4/21/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.16E+00 0.00E+00 2.16E+00 K-40 1.30E+01 2.03E+00 2.19E+00 LLI-131 <5.33E-01 0.00E+00 5.33E-01 Sample ID: 295636 Sample Dates: 5/5/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.66E+00 0.00E+00 2.66E+00 K-40 1.50E+01 1.72E+00 2.76E+00 LLI-131 <5.40E-01 0.00E+00 5.40E-01 Sample ID: 295640 Sample Dates: 4/21/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.15E+00 4.37E-01 1.24E+00 Mn-54 <2.77E+00 0.00E+00 2.77E+00 Co-58 <3.26E+00 0.00E+00 3.26E+00 Fe-59 <7.24E+00 0.00E+00 7.24E+00 Co-60 <2.85E+00 0.00E+00 2.85E+00 Zn-65 <5.56E+00 0.00E+00 5.56E+00 Zr-95 <5.67E+00 0.00E+00 5.67E+00 Nb-95 <3.57E+00 0.00E+00 3.57E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <2.71E+00 0.00E+00 2.71E+00 Cs-137 <2.90E+00 0.00E+00 2.90E+00 BaLa-140 <8.14E+00 0.00E+00 8.14E+00 Be-7 <2.94E+01 0.00E+00 2.94E+01 K-40 1.78E+02 2.44E+01 2.94E+01 H3DWSW <-5.1E+01 0.00E+00 1.93E+02 Sample ID: 296324 Sample Dates: 5/19/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.08E+00 0.00E+00 2.08E+00 K-40 1.29E+01 1.85E+00 2.54E+00 LLI-131 <5.25E-01 0.00E+00 5.25E-01 Sample ID: 297118 Sample Dates: 6/2/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.47E+00 0.00E+00 2.47E+00 K-40 4.12E+01 2.58E+00 2.68E+00 LLI-131 <5.86E-01 0.00E+00 5.86E-01 Sample ID: 297122 Sample Dates: 5/19/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.47E+00 4.57E-01 1.29E+00 Mn-54 <3.23E+00 0.00E+00 3.23E+00 Co-58 <3.45E+00 0.00E+00 3.45E+00 Fe-59 <7.40E+00 0.00E+00 7.40E+00 Co-60 <3.05E+00 0.00E+00 3.05E+00 Zn-65 <6.16E+00 0.00E+00 6.16E+00 Zr-95 <5.83E+00 0.00E+00 5.83E+00 Nb-95 <3.93E+00 0.00E+00 3.93E+00 I-131 <1.33E+01 0.00E+00 1.33E+01 Cs-134 <2.69E+00 0.00E+00 2.69E+00 Cs-137 <3.48E+00 0.00E+00 3.48E+00 BaLa-140 <6.68E+00 0.00E+00 6.68E+00 Be-7 <2.94E+01 0.00E+00 2.94E+01 K-40 1.71E+02 2.30E+01 2.50E+01 H3DWSW <-1.1E+02 0.00E+00 2.02E+02 Sample ID: 297734 Sample Dates: 6/16/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.26E+00 0.00E+00 2.26E+00 K-40 4.02E+01 2.47E+00 2.97E+00 LLI-131 <4.99E-01 0.00E+00 4.99E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 81 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 38 Sample Point 38 [ CONTROL - WSW @ 6.2 miles ]

Sample ID: 350092 Sample Dates: 6/30/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.50E-01 0.00E+00 6.50E-01 Sample ID: 350096 Sample Dates: 6/16/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.76E+00 9.42E-01 1.36E+00 Mn-54 <1.38E+00 0.00E+00 1.38E+00 Co-58 <1.45E+00 0.00E+00 1.45E+00 Fe-59 <3.66E+00 0.00E+00 3.66E+00 Co-60 <1.42E+00 0.00E+00 1.42E+00 Zn-65 <3.00E+00 0.00E+00 3.00E+00 Zr-95 <2.60E+00 0.00E+00 2.60E+00 Nb-95 <1.89E+00 0.00E+00 1.89E+00 I-131 <1.00E+01 0.00E+00 1.00E+01 Cs-134 <1.28E+00 0.00E+00 1.28E+00 Cs-137 <1.45E+00 0.00E+00 1.45E+00 BaLa-140 <4.19E+00 0.00E+00 4.19E+00 Be-7 <1.56E+01 0.00E+00 1.56E+01 K-40 9.68E+01 1.96E+01 2.39E+01 H3DWSW <1.67E+01 0.00E+00 1.87E+02 Sample ID: 350706 Sample Dates: 7/14/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.38E-01 0.00E+00 6.38E-01 Sample ID: 351583 Sample Dates: 7/28/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.22E-01 0.00E+00 5.22E-01 Sample ID: 351585 Sample Dates: 7/14/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.44E+00 9.30E-01 1.36E+00 Mn-54 <3.64E+00 0.00E+00 3.64E+00 Co-58 <4.45E+00 0.00E+00 4.45E+00 Fe-59 <8.74E+00 0.00E+00 8.74E+00 Co-60 <4.20E+00 0.00E+00 4.20E+00 Zn-65 <9.00E+00 0.00E+00 9.00E+00 Zr-95 <7.29E+00 0.00E+00 7.29E+00 Nb-95 <4.99E+00 0.00E+00 4.99E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <3.02E+00 0.00E+00 3.02E+00 Cs-137 <3.72E+00 0.00E+00 3.72E+00 BaLa-140 <8.16E+00 0.00E+00 8.16E+00 Be-7 <3.38E+01 0.00E+00 3.38E+01 K-40 1.59E+02 4.74E+01 5.11E+01 H3DWSW <-4.3E+01 0.00E+00 1.97E+02 Sample ID: 354043 Sample Dates: 8/11/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.69E-01 0.00E+00 5.69E-01 Sample ID: 354023 Sample Dates: 8/25/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.49E-01 0.00E+00 6.49E-01 Sample ID: 355339 Sample Dates: 8/11/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.24E+00 1.01E+00 1.55E+00 Mn-54 <2.78E+00 0.00E+00 2.78E+00 Co-58 <3.77E+00 0.00E+00 3.77E+00 Fe-59 <6.83E+00 0.00E+00 6.83E+00 Co-60 <2.76E+00 0.00E+00 2.76E+00 Zn-65 <7.02E+00 0.00E+00 7.02E+00 Zr-95 <6.41E+00 0.00E+00 6.41E+00 Nb-95 <3.85E+00 0.00E+00 3.85E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <4.29E+00 0.00E+00 4.29E+00 Cs-137 <2.72E+00 0.00E+00 2.72E+00 BaLa-140 <6.28E+00 0.00E+00 6.28E+00 Be-7 <2.93E+01 0.00E+00 2.93E+01 K-40 1.60E+02 4.22E+01 4.58E+01 H3DWSW <6.33E+01 0.00E+00 1.85E+02 Sample ID: 355682 Sample Dates: 9/8/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.84E-01 0.00E+00 5.84E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 82 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 38 Sample Point 38 [ CONTROL - WSW @ 6.2 miles ]

Sample ID: 357085 Sample Dates: 9/22/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.86E-01 0.00E+00 5.86E-01 Sample ID: 357089 Sample Dates: 9/8/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.07E+01 1.14E+00 1.24E+00 Mn-54 <2.74E+00 0.00E+00 2.74E+00 Co-58 <2.98E+00 0.00E+00 2.98E+00 Fe-59 <6.47E+00 0.00E+00 6.47E+00 Co-60 <2.56E+00 0.00E+00 2.56E+00 Zn-65 <5.43E+00 0.00E+00 5.43E+00 Zr-95 <6.07E+00 0.00E+00 6.07E+00 Nb-95 <4.00E+00 0.00E+00 4.00E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <3.65E+00 0.00E+00 3.65E+00 Cs-137 <2.45E+00 0.00E+00 2.45E+00 BaLa-140 <6.44E+00 0.00E+00 6.44E+00 Be-7 <2.86E+01 0.00E+00 2.86E+01 K-40 1.82E+02 3.84E+01 3.58E+01 H3DWSW <-8.0E+01 0.00E+00 1.91E+02 Sample ID: 358634 Sample Dates: 10/6/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.12E-01 0.00E+00 6.12E-01 Sample ID: 360000 Sample Dates: 10/20/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.73E-01 0.00E+00 5.73E-01 Sample ID: 360001 Sample Dates: 10/6/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.42E+00 9.67E-01 1.36E+00 Mn-54 <2.81E+00 0.00E+00 2.81E+00 Co-58 <2.38E+00 0.00E+00 2.38E+00 Fe-59 <4.81E+00 0.00E+00 4.81E+00 Co-60 <1.86E+00 0.00E+00 1.86E+00 Zn-65 <5.97E+00 0.00E+00 5.97E+00 Zr-95 <5.55E+00 0.00E+00 5.55E+00 Nb-95 <3.33E+00 0.00E+00 3.33E+00 I-131 <1.04E+01 0.00E+00 1.04E+01 Cs-134 <3.12E+00 0.00E+00 3.12E+00 Cs-137 <2.92E+00 0.00E+00 2.92E+00 BaLa-140 <7.27E+00 0.00E+00 7.27E+00 Be-7 <2.65E+01 0.00E+00 2.65E+01 K-40 4.51E+01 2.66E+01 3.69E+01 H3DWSW <-1.4E+01 0.00E+00 1.87E+02 Sample ID: 361552 Sample Dates: 11/3/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.89E-01 0.00E+00 5.89E-01 Sample ID: 362753 Sample Dates: 11/17/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.27E-01 0.00E+00 6.27E-01 Sample ID: 362754 Sample Dates: 11/3/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 5.21E+00 9.54E-01 1.26E+00 Mn-54 <1.18E+00 0.00E+00 1.18E+00 Co-58 <1.27E+00 0.00E+00 1.27E+00 Fe-59 <2.51E+00 0.00E+00 2.51E+00 Co-60 <1.10E+00 0.00E+00 1.10E+00 Zn-65 <2.05E+00 0.00E+00 2.05E+00 Zr-95 <2.19E+00 0.00E+00 2.19E+00 Nb-95 <1.58E+00 0.00E+00 1.58E+00 I-131 <9.02E+00 0.00E+00 9.02E+00 Cs-134 <1.21E+00 0.00E+00 1.21E+00 Cs-137 <9.69E-01 0.00E+00 9.69E-01 BaLa-140 <4.67E+00 0.00E+00 4.67E+00 Be-7 <1.06E+01 0.00E+00 1.06E+01 K-40 2.85E+01 1.24E+01 1.81E+01 H3DWSW <-9.1E+01 0.00E+00 1.86E+02 Sample ID: 363948 Sample Dates: 12/1/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.43E-01 0.00E+00 6.43E-01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 83 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 38 Sample Point 38 [ CONTROL - WSW @ 6.2 miles ]

Sample ID: 364761 Sample Dates: 12/15/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.67E-01 0.00E+00 5.67E-01 Sample ID: 364762 Sample Dates: 12/1/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.02E+00 9.81E-01 1.44E+00 Mn-54 <1.31E+00 0.00E+00 1.31E+00 Co-58 <1.54E+00 0.00E+00 1.54E+00 Fe-59 <3.15E+00 0.00E+00 3.15E+00 Co-60 <1.26E+00 0.00E+00 1.26E+00 Zn-65 <3.18E+00 0.00E+00 3.18E+00 Zr-95 <2.94E+00 0.00E+00 2.94E+00 Nb-95 <1.99E+00 0.00E+00 1.99E+00 I-131 <8.74E+00 0.00E+00 8.74E+00 Cs-134 <1.52E+00 0.00E+00 1.52E+00 Cs-137 <1.47E+00 0.00E+00 1.47E+00 BaLa-140 <5.37E+00 0.00E+00 5.37E+00 Be-7 <1.45E+01 0.00E+00 1.45E+01 K-40 1.98E+01 1.47E+01 2.31E+01 H3DWSW <-5.8E+01 0.00E+00 2.02E+02 Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ]

Sample ID: 281705 Sample Dates: 12/30/2013 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.89E+00 0.00E+00 2.89E+00 K-40 1.44E+01 2.42E+00 4.31E+00 LLI-131 <6.31E-01 0.00E+00 6.31E-01 Sample ID: 283030 Sample Dates: 1/13/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.46E+00 0.00E+00 2.46E+00 K-40 1.25E+01 2.38E+00 3.75E+00 LLI-131 <5.54E-01 0.00E+00 5.54E-01 Sample ID: 283034 Sample Dates: 12/30/2013 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.90E+00 4.24E-01 1.22E+00 Mn-54 <3.30E+00 0.00E+00 3.30E+00 Co-58 <3.86E+00 0.00E+00 3.86E+00 Fe-59 <8.81E+00 0.00E+00 8.81E+00 Co-60 <3.76E+00 0.00E+00 3.76E+00 Zn-65 <7.90E+00 0.00E+00 7.90E+00 Zr-95 <7.60E+00 0.00E+00 7.60E+00 Nb-95 <4.25E+00 0.00E+00 4.25E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <3.35E+00 0.00E+00 3.35E+00 Cs-137 <3.04E+00 0.00E+00 3.04E+00 BaLa-140 <9.03E+00 0.00E+00 9.03E+00 Be-7 <3.08E+01 0.00E+00 3.08E+01 K-40 1.75E+02 2.17E+01 3.07E+01 H3DWSW <6.31E+01 0.00E+00 1.52E+02 Sample ID: 284717 Sample Dates: 1/27/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.10E+00 0.00E+00 2.10E+00 K-40 1.18E+01 1.84E+00 2.76E+00 LLI-131 <6.44E-01 0.00E+00 6.44E-01 Sample ID: 286055 Sample Dates: 2/10/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <9.87E-01 0.00E+00 9.87E-01 K-40 1.98E+01 8.79E-01 9.77E-01 LLI-131 <7.58E-01 0.00E+00 7.58E-01 Sample ID: 286059 Sample Dates: 1/27/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.02E+00 4.10E-01 1.16E+00 Mn-54 <3.88E+00 0.00E+00 3.88E+00 Co-58 <3.82E+00 0.00E+00 3.82E+00 Fe-59 <6.38E+00 0.00E+00 6.38E+00 Co-60 <4.58E+00 0.00E+00 4.58E+00 Zn-65 <6.39E+00 0.00E+00 6.39E+00 Zr-95 <7.34E+00 0.00E+00 7.34E+00 Nb-95 <4.77E+00 0.00E+00 4.77E+00 I-131 <1.37E+01 0.00E+00 1.37E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 84 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 40 Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ]

Sample ID: 286059 Sample Dates: 1/27/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Cs-134 <3.18E+00 0.00E+00 3.18E+00 Cs-137 <3.79E+00 0.00E+00 3.79E+00 BaLa-140 <8.72E+00 0.00E+00 8.72E+00 Be-7 <3.13E+01 0.00E+00 3.13E+01 K-40 5.53E+01 1.83E+01 4.18E+01 H3DWSW <8.33E+01 0.00E+00 1.53E+02 Sample ID: 287391 Sample Dates: 2/24/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <1.85E+00 0.00E+00 1.85E+00 K-40 1.00E+01 1.55E+00 2.16E+00 LLI-131 <6.14E-01 0.00E+00 6.14E-01 Sample ID: 289231 Sample Dates: 3/10/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.71E+00 0.00E+00 2.71E+00 K-40 1.16E+01 2.40E+00 3.92E+00 LLI-131 <6.14E-01 0.00E+00 6.14E-01 Sample ID: 289235 Sample Dates: 2/24/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.10E+00 3.83E-01 1.13E+00 Mn-54 <2.36E+00 0.00E+00 2.36E+00 Co-58 <2.18E+00 0.00E+00 2.18E+00 Fe-59 <5.40E+00 0.00E+00 5.40E+00 Co-60 <3.26E+00 0.00E+00 3.26E+00 Zn-65 <5.33E+00 0.00E+00 5.33E+00 Zr-95 <4.44E+00 0.00E+00 4.44E+00 Nb-95 <3.04E+00 0.00E+00 3.04E+00 I-131 <9.03E+00 0.00E+00 9.03E+00 Cs-134 <1.95E+00 0.00E+00 1.95E+00 Cs-137 <3.00E+00 0.00E+00 3.00E+00 BaLa-140 <6.02E+00 0.00E+00 6.02E+00 Be-7 <2.34E+01 0.00E+00 2.34E+01 K-40 7.12E+01 1.31E+01 2.53E+01 H3DWSW <1.39E+01 0.00E+00 1.86E+02 Sample ID: 290005 Sample Dates: 3/24/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.88E+00 0.00E+00 2.88E+00 K-40 1.27E+01 2.21E+00 3.78E+00 LLI-131 <6.04E-01 0.00E+00 6.04E-01 Sample ID: 292890 Sample Dates: 4/7/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.39E+00 0.00E+00 2.39E+00 K-40 2.12E+01 2.18E+00 3.59E+00 LLI-131 <6.33E-01 0.00E+00 6.33E-01 Sample ID: 292894 Sample Dates: 3/24/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 1.82E+00 4.49E-01 1.43E+00 Mn-54 <3.29E+00 0.00E+00 3.29E+00 Co-58 <3.99E+00 0.00E+00 3.99E+00 Fe-59 <7.28E+00 0.00E+00 7.28E+00 Co-60 <4.39E+00 0.00E+00 4.39E+00 Zn-65 <7.76E+00 0.00E+00 7.76E+00 Zr-95 <6.18E+00 0.00E+00 6.18E+00 Nb-95 <5.36E+00 0.00E+00 5.36E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <2.91E+00 0.00E+00 2.91E+00 Cs-137 <4.27E+00 0.00E+00 4.27E+00 BaLa-140 <7.95E+00 0.00E+00 7.95E+00 Be-7 <2.87E+01 0.00E+00 2.87E+01 K-40 6.44E+01 1.44E+01 3.16E+01 H3DWSW <1.64E+02 0.00E+00 1.89E+02 Sample ID: 294858 Sample Dates: 4/21/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <1.61E+00 0.00E+00 1.61E+00 K-40 2.02E+01 1.78E+00 2.18E+00 LLI-131 <4.33E-01 0.00E+00 4.33E-01 Sample ID: 295637 Sample Dates: 5/5/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.71E+00 0.00E+00 2.71E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 85 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 40 Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ]

Sample ID: 295637 Sample Dates: 5/5/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD K-40 1.09E+01 2.37E+00 3.81E+00 LLI-131 <6.29E-01 0.00E+00 6.29E-01 Sample ID: 295641 Sample Dates: 4/21/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.66E+00 4.16E-01 1.20E+00 Mn-54 <3.41E+00 0.00E+00 3.41E+00 Co-58 <3.63E+00 0.00E+00 3.63E+00 Fe-59 <7.38E+00 0.00E+00 7.38E+00 Co-60 <4.19E+00 0.00E+00 4.19E+00 Zn-65 <8.41E+00 0.00E+00 8.41E+00 Zr-95 <7.69E+00 0.00E+00 7.69E+00 Nb-95 <5.13E+00 0.00E+00 5.13E+00 I-131 <1.40E+01 0.00E+00 1.40E+01 Cs-134 <2.98E+00 0.00E+00 2.98E+00 Cs-137 <3.94E+00 0.00E+00 3.94E+00 BaLa-140 <7.32E+00 0.00E+00 7.32E+00 Be-7 <2.89E+01 0.00E+00 2.89E+01 K-40 4.97E+01 2.02E+01 4.23E+01 H3DWSW <1.60E+02 0.00E+00 1.94E+02 Sample ID: 296326 Sample Dates: 5/19/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.74E+00 0.00E+00 2.74E+00 K-40 4.71E+01 3.13E+00 3.45E+00 LLI-131 <6.42E-01 0.00E+00 6.42E-01 Sample ID: 297119 Sample Dates: 6/2/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.27E+00 0.00E+00 2.27E+00 K-40 1.06E+01 2.05E+00 3.77E+00 LLI-131 <4.88E-01 0.00E+00 4.88E-01 Sample ID: 297123 Sample Dates: 5/19/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.61E+00 4.50E-01 1.26E+00 Mn-54 <2.90E+00 0.00E+00 2.90E+00 Co-58 <3.14E+00 0.00E+00 3.14E+00 Fe-59 <8.01E+00 0.00E+00 8.01E+00 Co-60 <3.74E+00 0.00E+00 3.74E+00 Zn-65 <6.40E+00 0.00E+00 6.40E+00 Zr-95 <6.13E+00 0.00E+00 6.13E+00 Nb-95 <3.54E+00 0.00E+00 3.54E+00 I-131 <9.75E+00 0.00E+00 9.75E+00 Cs-134 <3.06E+00 0.00E+00 3.06E+00 Cs-137 <3.65E+00 0.00E+00 3.65E+00 BaLa-140 <1.03E+01 0.00E+00 1.03E+01 Be-7 <2.81E+01 0.00E+00 2.81E+01 K-40 8.83E+01 1.46E+01 2.68E+01 H3DWSW <4.33E+01 0.00E+00 2.00E+02 Sample ID: 297735 Sample Dates: 6/16/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.66E+00 0.00E+00 2.66E+00 K-40 1.06E+01 3.52E+00 4.77E+00 LLI-131 <6.50E-01 0.00E+00 6.50E-01 Sample ID: 350093 Sample Dates: 6/30/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.24E-01 0.00E+00 6.24E-01 Sample ID: 350097 Sample Dates: 6/16/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.53E+00 9.13E-01 1.32E+00 Mn-54 <1.55E+00 0.00E+00 1.55E+00 Co-58 <1.77E+00 0.00E+00 1.77E+00 Fe-59 <3.90E+00 0.00E+00 3.90E+00 Co-60 <1.44E+00 0.00E+00 1.44E+00 Zn-65 <3.24E+00 0.00E+00 3.24E+00 Zr-95 <3.26E+00 0.00E+00 3.26E+00 Nb-95 <2.41E+00 0.00E+00 2.41E+00 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <1.17E+00 0.00E+00 1.17E+00 Cs-137 <1.30E+00 0.00E+00 1.30E+00 BaLa-140 <5.35E+00 0.00E+00 5.35E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 86 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 40 Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ]

Sample ID: 350097 Sample Dates: 6/16/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <1.56E+01 0.00E+00 1.56E+01 K-40 1.89E+02 2.66E+01 2.54E+01 H3DWSW <-1.2E+01 0.00E+00 1.87E+02 Sample ID: 350707 Sample Dates: 7/14/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.49E-01 0.00E+00 6.49E-01 Sample ID: 351588 Sample Dates: 7/28/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.42E-01 0.00E+00 6.42E-01 Sample ID: 351589 Sample Dates: 7/14/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.53E+00 9.07E-01 1.32E+00 Mn-54 <3.16E+00 0.00E+00 3.16E+00 Co-58 <2.96E+00 0.00E+00 2.96E+00 Fe-59 <6.72E+00 0.00E+00 6.72E+00 Co-60 <3.55E+00 0.00E+00 3.55E+00 Zn-65 <7.31E+00 0.00E+00 7.31E+00 Zr-95 <6.53E+00 0.00E+00 6.53E+00 Nb-95 <4.52E+00 0.00E+00 4.52E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <2.42E+00 0.00E+00 2.42E+00 Cs-137 <3.25E+00 0.00E+00 3.25E+00 BaLa-140 <9.32E+00 0.00E+00 9.32E+00 Be-7 <2.95E+01 0.00E+00 2.95E+01 K-40 9.69E+01 3.65E+01 4.65E+01 H3DWSW <-3.4E+01 0.00E+00 1.97E+02 Sample ID: 354047 Sample Dates: 8/11/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.12E-01 0.00E+00 6.12E-01 Sample ID: 354025 Sample Dates: 8/25/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.34E-01 0.00E+00 6.34E-01 Sample ID: 354799 Sample Dates: 8/11/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 2.91E+00 9.60E-01 1.49E+00 Mn-54 <2.73E+00 0.00E+00 2.73E+00 Co-58 <2.86E+00 0.00E+00 2.86E+00 Fe-59 <5.93E+00 0.00E+00 5.93E+00 Co-60 <2.71E+00 0.00E+00 2.71E+00 Zn-65 <5.86E+00 0.00E+00 5.86E+00 Zr-95 <6.11E+00 0.00E+00 6.11E+00 Nb-95 <4.04E+00 0.00E+00 4.04E+00 I-131 <1.12E+01 0.00E+00 1.12E+01 Cs-134 <2.83E+00 0.00E+00 2.83E+00 Cs-137 <2.93E+00 0.00E+00 2.93E+00 BaLa-140 <6.89E+00 0.00E+00 6.89E+00 Be-7 <2.49E+01 0.00E+00 2.49E+01 K-40 1.05E+02 3.72E+01 5.01E+01 H3DWSW <5.18E+01 0.00E+00 1.86E+02 Sample ID: 355683 Sample Dates: 9/8/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.83E-01 0.00E+00 5.83E-01 Sample ID: 357086 Sample Dates: 9/22/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.19E-01 0.00E+00 6.19E-01 Sample ID: 357090 Sample Dates: 9/8/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 6.13E+00 9.51E-01 1.19E+00 Mn-54 <1.86E+00 0.00E+00 1.86E+00 Co-58 <2.07E+00 0.00E+00 2.07E+00 Fe-59 <4.34E+00 0.00E+00 4.34E+00 Co-60 <1.78E+00 0.00E+00 1.78E+00 Zn-65 <3.93E+00 0.00E+00 3.93E+00 Zr-95 <4.04E+00 0.00E+00 4.04E+00 Nb-95 <2.78E+00 0.00E+00 2.78E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <2.20E+00 0.00E+00 2.20E+00 Cs-137 <1.82E+00 0.00E+00 1.82E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 87 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 40 Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ]

Sample ID: 357090 Sample Dates: 9/8/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD BaLa-140 <6.18E+00 0.00E+00 6.18E+00 Be-7 <1.85E+01 0.00E+00 1.85E+01 K-40 1.62E+02 2.80E+01 2.85E+01 H3DWSW <-1.2E+01 0.00E+00 1.91E+02 Sample ID: 358636 Sample Dates: 10/6/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.47E-01 0.00E+00 6.47E-01 Sample ID: 360003 Sample Dates: 10/20/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.49E-01 0.00E+00 6.49E-01 Sample ID: 360004 Sample Dates: 10/6/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.98E+00 9.32E-01 1.32E+00 Mn-54 <2.71E+00 0.00E+00 2.71E+00 Co-58 <3.70E+00 0.00E+00 3.70E+00 Fe-59 <6.80E+00 0.00E+00 6.80E+00 Co-60 <3.23E+00 0.00E+00 3.23E+00 Zn-65 <7.93E+00 0.00E+00 7.93E+00 Zr-95 <6.33E+00 0.00E+00 6.33E+00 Nb-95 <4.42E+00 0.00E+00 4.42E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <3.80E+00 0.00E+00 3.80E+00 Cs-137 <2.62E+00 0.00E+00 2.62E+00 BaLa-140 <5.81E+00 0.00E+00 5.81E+00 Be-7 <3.39E+01 0.00E+00 3.39E+01 K-40 <6.21E+01 0.00E+00 6.21E+01 H3DWSW <-2.9E+01 0.00E+00 1.88E+02 Sample ID: 361554 Sample Dates: 11/3/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.84E-01 0.00E+00 5.84E-01 Sample ID: 362756 Sample Dates: 11/17/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.07E-01 0.00E+00 5.07E-01 Sample ID: 362757 Sample Dates: 11/3/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 6.60E+00 9.86E-01 1.23E+00 Mn-54 <1.08E+00 0.00E+00 1.08E+00 Co-58 <1.32E+00 0.00E+00 1.32E+00 Fe-59 <2.89E+00 0.00E+00 2.89E+00 Co-60 <9.90E-01 0.00E+00 9.90E-01 Zn-65 <2.30E+00 0.00E+00 2.30E+00 Zr-95 <1.98E+00 0.00E+00 1.98E+00 Nb-95 <1.64E+00 0.00E+00 1.64E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <1.15E+00 0.00E+00 1.15E+00 Cs-137 <9.71E-01 0.00E+00 9.71E-01 BaLa-140 <4.85E+00 0.00E+00 4.85E+00 Be-7 <1.11E+01 0.00E+00 1.11E+01 K-40 2.71E+01 1.13E+01 1.64E+01 H3DWSW <-1.1E+02 0.00E+00 1.84E+02 Sample ID: 363950 Sample Dates: 12/1/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 364763 Sample Dates: 12/15/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.42E-01 0.00E+00 5.42E-01 Sample ID: 364764 Sample Dates: 12/1/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.52E+00 9.29E-01 1.39E+00 Mn-54 <1.76E+00 0.00E+00 1.76E+00 Co-58 <2.06E+00 0.00E+00 2.06E+00 Fe-59 <4.63E+00 0.00E+00 4.63E+00 Co-60 <1.61E+00 0.00E+00 1.61E+00 Zn-65 <3.44E+00 0.00E+00 3.44E+00 Zr-95 <3.91E+00 0.00E+00 3.91E+00 Nb-95 <2.59E+00 0.00E+00 2.59E+00 I-131 <1.04E+01 0.00E+00 1.04E+01 Cs-134 <1.97E+00 0.00E+00 1.97E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 88 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l 40 Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ]

Sample ID: 364764 Sample Dates: 12/1/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Cs-137 <1.50E+00 0.00E+00 1.50E+00 BaLa-140 <4.40E+00 0.00E+00 4.40E+00 Be-7 <1.81E+01 0.00E+00 1.81E+01 K-40 1.89E+02 3.69E+01 4.70E+01 H3DWSW <-1.7E+01 0.00E+00 2.01E+02 Media Type: FISH Concentration (Activity): pCi/kg wet 44 Sample Point 44 [ INDICATOR - -- @ 0 miles ]

Sample ID: 296093 Sample Dates: 5/22/2014 - 5/22/2014 BOTMFEEDER Nuclide Activity Sigma Error 1 LLD Mn-54 <1.52E+01 0.00E+00 1.52E+01 Co-58 <1.76E+01 0.00E+00 1.76E+01 Fe-59 <3.57E+01 0.00E+00 3.57E+01 Co-60 <2.61E+01 0.00E+00 2.61E+01 Zn-65 <3.60E+01 0.00E+00 3.60E+01 Nb-95 <1.87E+01 0.00E+00 1.87E+01 I-131 <2.95E+01 0.00E+00 2.95E+01 Cs-134 <1.84E+01 0.00E+00 1.84E+01 Cs-137 <1.60E+01 0.00E+00 1.60E+01 Be-7 <1.31E+02 0.00E+00 1.31E+02 K-40 2.65E+03 2.10E+02 1.24E+02 Ag-110M <1.16E+01 0.00E+00 1.16E+01 Sb-122 <3.69E+02 0.00E+00 3.69E+02 Sb-125 <3.41E+01 0.00E+00 3.41E+01 Sample ID: 296094 Sample Dates: 5/22/2014 - 5/22/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.55E+01 0.00E+00 2.55E+01 Co-58 <1.52E+01 0.00E+00 1.52E+01 Fe-59 <5.55E+01 0.00E+00 5.55E+01 Co-60 <2.65E+01 0.00E+00 2.65E+01 Zn-65 <4.74E+01 0.00E+00 4.74E+01 Nb-95 <2.43E+01 0.00E+00 2.43E+01 I-131 <4.31E+01 0.00E+00 4.31E+01 Cs-134 <1.79E+01 0.00E+00 1.79E+01 Cs-137 <2.40E+01 0.00E+00 2.40E+01 Be-7 <1.35E+02 0.00E+00 1.35E+02 K-40 2.84E+03 2.56E+02 3.12E+02 Ag-110M <2.19E+01 0.00E+00 2.19E+01 Sb-122 <4.33E+02 0.00E+00 4.33E+02 Sb-125 <5.05E+01 0.00E+00 5.05E+01 Sample ID: 296095 Sample Dates: 5/22/2014 - 5/22/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <1.24E+01 0.00E+00 1.24E+01 Co-58 <1.11E+01 0.00E+00 1.11E+01 Fe-59 <2.32E+01 0.00E+00 2.32E+01 Co-60 <1.07E+01 0.00E+00 1.07E+01 Zn-65 <2.69E+01 0.00E+00 2.69E+01 Nb-95 <1.22E+01 0.00E+00 1.22E+01 I-131 <2.51E+01 0.00E+00 2.51E+01 Cs-134 <9.75E+00 0.00E+00 9.75E+00 Cs-137 <1.03E+01 0.00E+00 1.03E+01 Be-7 <1.04E+02 0.00E+00 1.04E+02 K-40 3.44E+03 1.64E+02 9.27E+01 Ag-110M <9.46E+00 0.00E+00 9.46E+00 Sb-122 <2.40E+02 0.00E+00 2.40E+02 Sb-125 <3.08E+01 0.00E+00 3.08E+01 Sample ID: 363569 Sample Dates: 11/24/2014 - 11/24/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <8.47E+01 0.00E+00 8.47E+01 Co-58 <7.96E+01 0.00E+00 7.96E+01 Fe-59 <1.66E+02 0.00E+00 1.66E+02 Co-60 <7.68E+01 0.00E+00 7.68E+01 Zn-65 <4.94E+01 0.00E+00 4.94E+01 Nb-95 <8.25E+01 0.00E+00 8.25E+01 I-131 <1.30E+02 0.00E+00 1.30E+02 Cs-134 <9.40E+01 0.00E+00 9.40E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 89 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg wet 44 Sample Point 44 [ INDICATOR - -- @ 0 miles ]

Sample ID: 363569 Sample Dates: 11/24/2014 - 11/24/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Cs-137 <7.90E+01 0.00E+00 7.90E+01 Be-7 <5.92E+02 0.00E+00 5.92E+02 K-40 5.46E+03 1.71E+03 1.32E+03 Ag-110M <7.22E+01 0.00E+00 7.22E+01 Sb-122 <4.94E+02 0.00E+00 4.94E+02 Sb-125 <1.69E+02 0.00E+00 1.69E+02 Sample ID: 363570 Sample Dates: 11/24/2014 - 11/24/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <1.92E+01 0.00E+00 1.92E+01 Co-58 <2.31E+01 0.00E+00 2.31E+01 Fe-59 <3.94E+01 0.00E+00 3.94E+01 Co-60 <1.85E+01 0.00E+00 1.85E+01 Zn-65 <4.87E+01 0.00E+00 4.87E+01 Nb-95 <2.40E+01 0.00E+00 2.40E+01 I-131 <2.76E+01 0.00E+00 2.76E+01 Cs-134 <1.45E+01 0.00E+00 1.45E+01 Cs-137 <1.08E+01 0.00E+00 1.08E+01 Be-7 <1.37E+02 0.00E+00 1.37E+02 K-40 3.60E+03 5.99E+02 2.87E+02 Ag-110M <1.58E+01 0.00E+00 1.58E+01 Sb-122 <1.11E+02 0.00E+00 1.11E+02 Sb-125 <3.37E+01 0.00E+00 3.37E+01 Sample ID: 363571 Sample Dates: 11/24/2014 - 11/24/2014 BOTMFEEDER Nuclide Activity Sigma Error 1 LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.83E+01 0.00E+00 1.83E+01 Fe-59 <5.70E+01 0.00E+00 5.70E+01 Co-60 <3.88E+01 0.00E+00 3.88E+01 Zn-65 <6.19E+01 0.00E+00 6.19E+01 Nb-95 <1.90E+01 0.00E+00 1.90E+01 I-131 <3.66E+01 0.00E+00 3.66E+01 Cs-134 <2.70E+01 0.00E+00 2.70E+01 Cs-137 <2.90E+01 0.00E+00 2.90E+01 Be-7 <1.98E+02 0.00E+00 1.98E+02 K-40 3.51E+03 6.59E+02 3.05E+02 Ag-110M <1.98E+01 0.00E+00 1.98E+01 Sb-122 <2.24E+02 0.00E+00 2.24E+02 Sb-125 <7.12E+01 0.00E+00 7.12E+01 Sample Point 45 [ CONTROL - -- @ 0 miles ]

Sample ID: 296086 Sample Dates: 5/20/2014 - 5/20/2014 BOTMFEEDER Nuclide Activity Sigma Error 1 LLD Mn-54 <2.06E+01 0.00E+00 2.06E+01 Co-58 <2.75E+01 0.00E+00 2.75E+01 Fe-59 <5.19E+01 0.00E+00 5.19E+01 Co-60 <2.67E+01 0.00E+00 2.67E+01 Zn-65 <4.65E+01 0.00E+00 4.65E+01 Nb-95 <1.94E+01 0.00E+00 1.94E+01 I-131 <5.02E+01 0.00E+00 5.02E+01 Cs-134 <1.50E+01 0.00E+00 1.50E+01 Cs-137 <2.07E+01 0.00E+00 2.07E+01 Be-7 <1.62E+02 0.00E+00 1.62E+02 K-40 3.41E+03 2.61E+02 1.94E+02 Ag-110M <1.76E+01 0.00E+00 1.76E+01 Sb-122 <7.47E+02 0.00E+00 7.47E+02 Sb-125 <4.59E+01 0.00E+00 4.59E+01 Sample ID: 296088 Sample Dates: 5/21/2014 - 5/21/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.04E+01 0.00E+00 2.04E+01 Co-58 <3.11E+01 0.00E+00 3.11E+01 Fe-59 <5.34E+01 0.00E+00 5.34E+01 Co-60 <3.43E+01 0.00E+00 3.43E+01 Zn-65 <5.99E+01 0.00E+00 5.99E+01 Nb-95 <3.53E+01 0.00E+00 3.53E+01 I-131 <7.86E+01 0.00E+00 7.86E+01 Cs-134 <2.11E+01 0.00E+00 2.11E+01 Cs-137 <2.69E+01 0.00E+00 2.69E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 90 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg wet 45 Sample Point 45 [ CONTROL - -- @ 0 miles ]

Sample ID: 296088 Sample Dates: 5/21/2014 - 5/21/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Be-7 <2.18E+02 0.00E+00 2.18E+02 K-40 3.57E+03 2.95E+02 2.81E+02 Ag-110M <2.51E+01 0.00E+00 2.51E+01 Sb-122 <1.30E+03 0.00E+00 1.30E+03 Sb-125 <6.17E+01 0.00E+00 6.17E+01 Sample ID: 296089 Sample Dates: 5/21/2014 - 5/21/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <7.23E+00 0.00E+00 7.23E+00 Co-58 <8.60E+00 0.00E+00 8.60E+00 Fe-59 <1.94E+01 0.00E+00 1.94E+01 Co-60 <9.96E+00 0.00E+00 9.96E+00 Zn-65 <2.05E+01 0.00E+00 2.05E+01 Nb-95 <1.03E+01 0.00E+00 1.03E+01 I-131 <2.40E+01 0.00E+00 2.40E+01 Cs-134 <8.60E+00 0.00E+00 8.60E+00 Cs-137 <1.01E+01 0.00E+00 1.01E+01 Be-7 <6.80E+01 0.00E+00 6.80E+01 K-40 3.27E+03 1.49E+02 7.90E+01 Ag-110M <6.66E+00 0.00E+00 6.66E+00 Sb-122 <2.74E+02 0.00E+00 2.74E+02 Sb-125 <1.97E+01 0.00E+00 1.97E+01 Sample ID: 363573 Sample Dates: 11/24/2014 - 11/24/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.10E+01 0.00E+00 2.10E+01 Co-58 <1.24E+01 0.00E+00 1.24E+01 Fe-59 <3.71E+01 0.00E+00 3.71E+01 Co-60 <2.47E+01 0.00E+00 2.47E+01 Zn-65 <5.34E+01 0.00E+00 5.34E+01 Nb-95 <2.46E+01 0.00E+00 2.46E+01 I-131 <2.85E+01 0.00E+00 2.85E+01 Cs-134 <2.51E+01 0.00E+00 2.51E+01 Cs-137 <1.64E+01 0.00E+00 1.64E+01 Be-7 <1.42E+02 0.00E+00 1.42E+02 K-40 2.50E+03 5.58E+02 3.79E+02 Ag-110M <1.82E+01 0.00E+00 1.82E+01 Sb-122 <2.06E+02 0.00E+00 2.06E+02 Sb-125 <4.98E+01 0.00E+00 4.98E+01 Sample ID: 363574 Sample Dates: 11/24/2014 - 11/24/2014 FREESWIM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.32E+01 0.00E+00 2.32E+01 Co-58 <1.86E+01 0.00E+00 1.86E+01 Fe-59 <6.08E+01 0.00E+00 6.08E+01 Co-60 <2.77E+01 0.00E+00 2.77E+01 Zn-65 <5.41E+01 0.00E+00 5.41E+01 Nb-95 <3.00E+01 0.00E+00 3.00E+01 I-131 <4.50E+01 0.00E+00 4.50E+01 Cs-134 <2.75E+01 0.00E+00 2.75E+01 Cs-137 <2.98E+01 0.00E+00 2.98E+01 Be-7 <2.21E+02 0.00E+00 2.21E+02 K-40 3.80E+03 7.12E+02 4.64E+02 Ag-110M <2.50E+01 0.00E+00 2.50E+01 Sb-122 <3.09E+02 0.00E+00 3.09E+02 Sb-125 <6.23E+01 0.00E+00 6.23E+01 Sample ID: 363575 Sample Dates: 11/24/2014 - 11/24/2014 BOTMFEEDER Nuclide Activity Sigma Error 1 LLD Mn-54 <5.70E+01 0.00E+00 5.70E+01 Co-58 <6.69E+01 0.00E+00 6.69E+01 Fe-59 <1.54E+02 0.00E+00 1.54E+02 Co-60 <4.35E+01 0.00E+00 4.35E+01 Zn-65 <1.82E+02 0.00E+00 1.82E+02 Nb-95 <5.37E+01 0.00E+00 5.37E+01 I-131 <8.42E+01 0.00E+00 8.42E+01 Cs-134 <5.46E+01 0.00E+00 5.46E+01 Cs-137 <5.20E+01 0.00E+00 5.20E+01 Be-7 <4.45E+02 0.00E+00 4.45E+02 K-40 2.09E+04 2.63E+03 7.90E+02 Ag-110M <5.14E+01 0.00E+00 5.14E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 91 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg wet 45 Sample Point 45 [ CONTROL - -- @ 0 miles ]

Sample ID: 363575 Sample Dates: 11/24/2014 - 11/24/2014 BOTMFEEDER Nuclide Activity Sigma Error 1 LLD Sb-122 <5.62E+02 0.00E+00 5.62E+02 Sb-125 <1.07E+02 0.00E+00 1.07E+02 Media Type: GROUND WATER Concentration (Activity): pCi/l 57 Sample Point 57 [ INDICATOR - SSW @ 0.4 miles ]

Sample ID: 281583 Sample Dates: 2/18/2014 - 2/18/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.75E+00 0.00E+00 6.75E+00 Co-58 <7.48E+00 0.00E+00 7.48E+00 Fe-59 <1.58E+01 0.00E+00 1.58E+01 Co-60 <9.92E+00 0.00E+00 9.92E+00 Zn-65 <2.09E+01 0.00E+00 2.09E+01 Zr-95 <1.25E+01 0.00E+00 1.25E+01 Nb-95 <9.29E+00 0.00E+00 9.29E+00 I-131 <1.08E+01 0.00E+00 1.08E+01 Cs-134 <7.72E+00 0.00E+00 7.72E+00 Cs-137 <8.84E+00 0.00E+00 8.84E+00 BaLa-140 <1.20E+01 0.00E+00 1.20E+01 Be-7 <5.80E+01 0.00E+00 5.80E+01 K-40 <1.46E+02 0.00E+00 1.46E+02 H3GW <-1.1E+02 0.00E+00 1.97E+02 Sample ID: 292712 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <1.01E+01 0.00E+00 1.01E+01 Co-58 <7.50E+00 0.00E+00 7.50E+00 Fe-59 <5.95E+00 0.00E+00 5.95E+00 Co-60 <7.20E+00 0.00E+00 7.20E+00 Zn-65 <2.13E+01 0.00E+00 2.13E+01 Zr-95 <1.24E+01 0.00E+00 1.24E+01 Nb-95 <9.87E+00 0.00E+00 9.87E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <1.02E+01 0.00E+00 1.02E+01 Cs-137 <9.66E+00 0.00E+00 9.66E+00 BaLa-140 <1.27E+01 0.00E+00 1.27E+01 Be-7 <7.38E+01 0.00E+00 7.38E+01 K-40 <1.65E+02 0.00E+00 1.65E+02 H3GW <3.12E+01 0.00E+00 1.93E+02 Sample ID: 350749 Sample Dates: 8/26/2014 - 8/26/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.01E+00 0.00E+00 6.01E+00 Co-58 <6.26E+00 0.00E+00 6.26E+00 Fe-59 <1.17E+01 0.00E+00 1.17E+01 Co-60 <5.33E+00 0.00E+00 5.33E+00 Zn-65 <1.25E+01 0.00E+00 1.25E+01 Zr-95 <1.13E+01 0.00E+00 1.13E+01 Nb-95 <6.64E+00 0.00E+00 6.64E+00 I-131 <9.66E+00 0.00E+00 9.66E+00 Cs-134 <6.38E+00 0.00E+00 6.38E+00 Cs-137 <5.09E+00 0.00E+00 5.09E+00 BaLa-140 <7.03E+00 0.00E+00 7.03E+00 Be-7 <4.07E+01 0.00E+00 4.07E+01 K-40 3.03E+02 8.54E+01 1.04E+02 H3GW <7.13E+01 0.00E+00 1.84E+02 Sample ID: 359136 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.95E+00 0.00E+00 7.95E+00 Co-58 <6.56E+00 0.00E+00 6.56E+00 Fe-59 <1.50E+01 0.00E+00 1.50E+01 Co-60 <8.21E+00 0.00E+00 8.21E+00 Zn-65 <1.29E+01 0.00E+00 1.29E+01 Zr-95 <1.20E+01 0.00E+00 1.20E+01 Nb-95 <8.01E+00 0.00E+00 8.01E+00 I-131 <9.14E+00 0.00E+00 9.14E+00 Cs-134 <7.80E+00 0.00E+00 7.80E+00 Cs-137 <7.74E+00 0.00E+00 7.74E+00 BaLa-140 <9.44E+00 0.00E+00 9.44E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 92 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 57 Sample Point 57 [ INDICATOR - SSW @ 0.4 miles ]

Sample ID: 359136 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <4.76E+01 0.00E+00 4.76E+01 K-40 <1.04E+02 0.00E+00 1.04E+02 H3GW <-1.6E+01 0.00E+00 1.84E+02 Sample Point 59 [ INDICATOR - NNE @ 0.5 miles ]

Sample ID: 281584 Sample Dates: 2/17/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.50E+00 0.00E+00 7.50E+00 Co-58 <7.32E+00 0.00E+00 7.32E+00 Fe-59 <1.83E+01 0.00E+00 1.83E+01 Co-60 <4.22E+00 0.00E+00 4.22E+00 Zn-65 <1.83E+01 0.00E+00 1.83E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <7.04E+00 0.00E+00 7.04E+00 I-131 <1.30E+01 0.00E+00 1.30E+01 Cs-134 <7.14E+00 0.00E+00 7.14E+00 Cs-137 <7.67E+00 0.00E+00 7.67E+00 BaLa-140 <1.38E+01 0.00E+00 1.38E+01 Be-7 <6.92E+01 0.00E+00 6.92E+01 K-40 3.45E+02 4.84E+01 9.91E+01 H3GW <7.26E+00 0.00E+00 1.99E+02 Sample ID: 292713 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.14E+00 0.00E+00 6.14E+00 Co-58 <5.76E+00 0.00E+00 5.76E+00 Fe-59 <1.26E+01 0.00E+00 1.26E+01 Co-60 <5.66E+00 0.00E+00 5.66E+00 Zn-65 <1.24E+01 0.00E+00 1.24E+01 Zr-95 <1.01E+01 0.00E+00 1.01E+01 Nb-95 <7.20E+00 0.00E+00 7.20E+00 I-131 <1.33E+01 0.00E+00 1.33E+01 Cs-134 <5.85E+00 0.00E+00 5.85E+00 Cs-137 <6.22E+00 0.00E+00 6.22E+00 BaLa-140 <8.08E+00 0.00E+00 8.08E+00 Be-7 <5.66E+01 0.00E+00 5.66E+01 K-40 6.35E+02 4.12E+01 5.01E+01 H3GW <-4.9E+01 0.00E+00 1.96E+02 Sample ID: 350750 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.54E+00 0.00E+00 5.54E+00 Co-58 <5.12E+00 0.00E+00 5.12E+00 Fe-59 <8.69E+00 0.00E+00 8.69E+00 Co-60 <4.53E+00 0.00E+00 4.53E+00 Zn-65 <1.11E+01 0.00E+00 1.11E+01 Zr-95 <9.60E+00 0.00E+00 9.60E+00 Nb-95 <7.15E+00 0.00E+00 7.15E+00 I-131 <6.02E+00 0.00E+00 6.02E+00 Cs-134 <6.66E+00 0.00E+00 6.66E+00 Cs-137 <5.79E+00 0.00E+00 5.79E+00 BaLa-140 <6.04E+00 0.00E+00 6.04E+00 Be-7 <4.03E+01 0.00E+00 4.03E+01 K-40 1.28E+02 6.20E+01 7.69E+01 H3GW <-1.2E+01 0.00E+00 1.84E+02 Sample ID: 359137 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.10E+00 0.00E+00 4.10E+00 Co-58 <5.17E+00 0.00E+00 5.17E+00 Fe-59 <1.08E+01 0.00E+00 1.08E+01 Co-60 <5.39E+00 0.00E+00 5.39E+00 Zn-65 <1.09E+01 0.00E+00 1.09E+01 Zr-95 <1.07E+01 0.00E+00 1.07E+01 Nb-95 <5.80E+00 0.00E+00 5.80E+00 I-131 <8.49E+00 0.00E+00 8.49E+00 Cs-134 <4.89E+00 0.00E+00 4.89E+00 Cs-137 <4.72E+00 0.00E+00 4.72E+00 BaLa-140 <5.97E+00 0.00E+00 5.97E+00 Be-7 <3.37E+01 0.00E+00 3.37E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 93 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 59 Sample Point 59 [ INDICATOR - NNE @ 0.5 miles ]

Sample ID: 359137 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD K-40 <9.46E+01 0.00E+00 9.46E+01 H3GW <-7.4E+01 0.00E+00 1.84E+02 Sample Point 60 [ INDICATOR - ESE @ 0.5 miles ]

Sample ID: 281585 Sample Dates: 2/18/2014 - 2/18/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.12E+00 0.00E+00 6.12E+00 Co-58 <5.63E+00 0.00E+00 5.63E+00 Fe-59 <1.28E+01 0.00E+00 1.28E+01 Co-60 <7.52E+00 0.00E+00 7.52E+00 Zn-65 <1.42E+01 0.00E+00 1.42E+01 Zr-95 <9.42E+00 0.00E+00 9.42E+00 Nb-95 <6.54E+00 0.00E+00 6.54E+00 I-131 <1.03E+01 0.00E+00 1.03E+01 Cs-134 <5.86E+00 0.00E+00 5.86E+00 Cs-137 <6.62E+00 0.00E+00 6.62E+00 BaLa-140 <8.72E+00 0.00E+00 8.72E+00 Be-7 <5.55E+01 0.00E+00 5.55E+01 K-40 3.40E+02 5.02E+01 5.48E+01 H3GW <-9.9E+01 0.00E+00 1.98E+02 Sample ID: 292714 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.30E+00 0.00E+00 7.30E+00 Co-58 <6.55E+00 0.00E+00 6.55E+00 Fe-59 <1.65E+01 0.00E+00 1.65E+01 Co-60 <7.79E+00 0.00E+00 7.79E+00 Zn-65 <1.66E+01 0.00E+00 1.66E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <8.51E+00 0.00E+00 8.51E+00 I-131 <1.31E+01 0.00E+00 1.31E+01 Cs-134 <6.15E+00 0.00E+00 6.15E+00 Cs-137 <7.50E+00 0.00E+00 7.50E+00 BaLa-140 <9.70E+00 0.00E+00 9.70E+00 Be-7 <7.11E+01 0.00E+00 7.11E+01 K-40 3.48E+02 4.77E+01 7.20E+01 H3GW <-4.3E+01 0.00E+00 1.94E+02 Sample ID: 350751 Sample Dates: 8/26/2014 - 8/26/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.75E+00 0.00E+00 6.75E+00 Co-58 <6.54E+00 0.00E+00 6.54E+00 Fe-59 <8.58E+00 0.00E+00 8.58E+00 Co-60 <6.32E+00 0.00E+00 6.32E+00 Zn-65 <1.17E+01 0.00E+00 1.17E+01 Zr-95 <1.13E+01 0.00E+00 1.13E+01 Nb-95 <5.99E+00 0.00E+00 5.99E+00 I-131 <6.08E+00 0.00E+00 6.08E+00 Cs-134 <6.85E+00 0.00E+00 6.85E+00 Cs-137 <6.30E+00 0.00E+00 6.30E+00 BaLa-140 <8.05E+00 0.00E+00 8.05E+00 Be-7 <4.49E+01 0.00E+00 4.49E+01 K-40 6.47E+01 7.32E+01 1.19E+02 H3GW <1.89E+01 0.00E+00 1.82E+02 Sample ID: 359138 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.07E+00 0.00E+00 6.07E+00 Co-58 <5.79E+00 0.00E+00 5.79E+00 Fe-59 <1.20E+01 0.00E+00 1.20E+01 Co-60 <6.12E+00 0.00E+00 6.12E+00 Zn-65 <1.17E+01 0.00E+00 1.17E+01 Zr-95 <1.03E+01 0.00E+00 1.03E+01 Nb-95 <5.88E+00 0.00E+00 5.88E+00 I-131 <7.43E+00 0.00E+00 7.43E+00 Cs-134 <7.08E+00 0.00E+00 7.08E+00 Cs-137 <5.10E+00 0.00E+00 5.10E+00 BaLa-140 <9.59E+00 0.00E+00 9.59E+00 Be-7 <4.39E+01 0.00E+00 4.39E+01 K-40 3.14E+02 7.92E+01 8.37E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 94 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 60 Sample Point 60 [ INDICATOR - ESE @ 0.5 miles ]

Sample ID: 359138 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-4.4E+01 0.00E+00 1.83E+02 Sample Point 68 [ INDICATOR - W @ 0.2 miles ]

Sample ID: 281586 Sample Dates: 2/18/2014 - 2/18/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.09E+00 0.00E+00 6.09E+00 Co-58 <6.72E+00 0.00E+00 6.72E+00 Fe-59 <1.17E+01 0.00E+00 1.17E+01 Co-60 <7.60E+00 0.00E+00 7.60E+00 Zn-65 <1.37E+01 0.00E+00 1.37E+01 Zr-95 <1.15E+01 0.00E+00 1.15E+01 Nb-95 <6.67E+00 0.00E+00 6.67E+00 I-131 <1.04E+01 0.00E+00 1.04E+01 Cs-134 <5.29E+00 0.00E+00 5.29E+00 Cs-137 <6.79E+00 0.00E+00 6.79E+00 BaLa-140 <8.97E+00 0.00E+00 8.97E+00 Be-7 <5.33E+01 0.00E+00 5.33E+01 K-40 1.34E+02 2.34E+01 6.47E+01 H3GW <-2.7E+01 0.00E+00 1.98E+02 Sample ID: 292715 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.97E+00 0.00E+00 7.97E+00 Co-58 <7.17E+00 0.00E+00 7.17E+00 Fe-59 <1.75E+01 0.00E+00 1.75E+01 Co-60 <9.96E+00 0.00E+00 9.96E+00 Zn-65 <1.41E+01 0.00E+00 1.41E+01 Zr-95 <1.30E+01 0.00E+00 1.30E+01 Nb-95 <7.07E+00 0.00E+00 7.07E+00 I-131 <9.54E+00 0.00E+00 9.54E+00 Cs-134 <5.06E+00 0.00E+00 5.06E+00 Cs-137 <7.87E+00 0.00E+00 7.87E+00 BaLa-140 <1.44E+01 0.00E+00 1.44E+01 Be-7 <5.26E+01 0.00E+00 5.26E+01 K-40 1.02E+02 3.32E+01 8.08E+01 H3GW <-7.5E+01 0.00E+00 1.95E+02 Sample ID: 350752 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.63E+00 0.00E+00 5.63E+00 Co-58 <5.70E+00 0.00E+00 5.70E+00 Fe-59 <1.23E+01 0.00E+00 1.23E+01 Co-60 <4.54E+00 0.00E+00 4.54E+00 Zn-65 <1.25E+01 0.00E+00 1.25E+01 Zr-95 <1.04E+01 0.00E+00 1.04E+01 Nb-95 <5.72E+00 0.00E+00 5.72E+00 I-131 <8.78E+00 0.00E+00 8.78E+00 Cs-134 <5.80E+00 0.00E+00 5.80E+00 Cs-137 <5.02E+00 0.00E+00 5.02E+00 BaLa-140 <9.85E+00 0.00E+00 9.85E+00 Be-7 <4.64E+01 0.00E+00 4.64E+01 K-40 6.11E+01 4.77E+01 6.88E+01 H3GW <1.29E+02 0.00E+00 1.84E+02 Sample ID: 359139 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.00E+00 0.00E+00 7.00E+00 Co-58 <8.07E+00 0.00E+00 8.07E+00 Fe-59 <1.44E+01 0.00E+00 1.44E+01 Co-60 <6.54E+00 0.00E+00 6.54E+00 Zn-65 <1.59E+01 0.00E+00 1.59E+01 Zr-95 <1.09E+01 0.00E+00 1.09E+01 Nb-95 <6.45E+00 0.00E+00 6.45E+00 I-131 <8.96E+00 0.00E+00 8.96E+00 Cs-134 <7.83E+00 0.00E+00 7.83E+00 Cs-137 <6.60E+00 0.00E+00 6.60E+00 BaLa-140 <1.19E+01 0.00E+00 1.19E+01 Be-7 <5.41E+01 0.00E+00 5.41E+01 K-40 3.16E+02 9.66E+01 1.04E+02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 95 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 68 Sample Point 68 [ INDICATOR - W @ 0.2 miles ]

Sample ID: 359139 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-2.1E+01 0.00E+00 1.83E+02 Sample Point 69 [ INDICATOR - NNE @ 0.2 miles ]

Sample ID: 281587 Sample Dates: 2/18/2014 - 2/18/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.81E+00 0.00E+00 6.81E+00 Co-58 <6.52E+00 0.00E+00 6.52E+00 Fe-59 <1.40E+01 0.00E+00 1.40E+01 Co-60 <7.50E+00 0.00E+00 7.50E+00 Zn-65 <1.39E+01 0.00E+00 1.39E+01 Zr-95 <1.22E+01 0.00E+00 1.22E+01 Nb-95 <7.05E+00 0.00E+00 7.05E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <6.26E+00 0.00E+00 6.26E+00 Cs-137 <6.47E+00 0.00E+00 6.47E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <5.56E+01 0.00E+00 5.56E+01 K-40 2.60E+02 4.00E+01 6.58E+01 H3GW <-1.3E+02 0.00E+00 1.98E+02 Sample ID: 292716 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.48E+00 0.00E+00 6.48E+00 Co-58 <6.31E+00 0.00E+00 6.31E+00 Fe-59 <1.39E+01 0.00E+00 1.39E+01 Co-60 <6.58E+00 0.00E+00 6.58E+00 Zn-65 <1.40E+01 0.00E+00 1.40E+01 Zr-95 <1.19E+01 0.00E+00 1.19E+01 Nb-95 <7.00E+00 0.00E+00 7.00E+00 I-131 <1.25E+01 0.00E+00 1.25E+01 Cs-134 <5.53E+00 0.00E+00 5.53E+00 Cs-137 <7.17E+00 0.00E+00 7.17E+00 BaLa-140 <1.20E+01 0.00E+00 1.20E+01 Be-7 <5.98E+01 0.00E+00 5.98E+01 K-40 2.53E+02 5.08E+01 7.42E+01 H3GW <-9.7E+01 0.00E+00 1.96E+02 Sample ID: 350753 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.91E+00 0.00E+00 4.91E+00 Co-58 <6.31E+00 0.00E+00 6.31E+00 Fe-59 <8.96E+00 0.00E+00 8.96E+00 Co-60 <5.69E+00 0.00E+00 5.69E+00 Zn-65 <1.42E+01 0.00E+00 1.42E+01 Zr-95 <1.17E+01 0.00E+00 1.17E+01 Nb-95 <6.29E+00 0.00E+00 6.29E+00 I-131 <6.81E+00 0.00E+00 6.81E+00 Cs-134 <6.75E+00 0.00E+00 6.75E+00 Cs-137 <6.03E+00 0.00E+00 6.03E+00 BaLa-140 <5.79E+00 0.00E+00 5.79E+00 Be-7 <4.44E+01 0.00E+00 4.44E+01 K-40 7.46E+01 6.11E+01 9.33E+01 H3GW <-5.0E+01 0.00E+00 1.82E+02 Sample ID: 359140 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.94E+00 0.00E+00 4.94E+00 Co-58 <5.70E+00 0.00E+00 5.70E+00 Fe-59 <1.16E+01 0.00E+00 1.16E+01 Co-60 <7.03E+00 0.00E+00 7.03E+00 Zn-65 <8.94E+00 0.00E+00 8.94E+00 Zr-95 <1.06E+01 0.00E+00 1.06E+01 Nb-95 <6.47E+00 0.00E+00 6.47E+00 I-131 <7.11E+00 0.00E+00 7.11E+00 Cs-134 <5.27E+00 0.00E+00 5.27E+00 Cs-137 <5.42E+00 0.00E+00 5.42E+00 BaLa-140 <8.69E+00 0.00E+00 8.69E+00 Be-7 <4.72E+01 0.00E+00 4.72E+01 K-40 7.95E+01 5.24E+01 7.23E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 96 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 69 Sample Point 69 [ INDICATOR - NNE @ 0.2 miles ]

Sample ID: 359140 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-5.6E+01 0.00E+00 1.83E+02 Sample Point 70 [ INDICATOR - E @ 0.4 miles ]

Sample ID: 281588 Sample Dates: 2/17/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.27E+00 0.00E+00 6.27E+00 Co-58 <6.94E+00 0.00E+00 6.94E+00 Fe-59 <1.46E+01 0.00E+00 1.46E+01 Co-60 <8.72E+00 0.00E+00 8.72E+00 Zn-65 <1.28E+01 0.00E+00 1.28E+01 Zr-95 <1.28E+01 0.00E+00 1.28E+01 Nb-95 <7.39E+00 0.00E+00 7.39E+00 I-131 <1.19E+01 0.00E+00 1.19E+01 Cs-134 <5.77E+00 0.00E+00 5.77E+00 Cs-137 <6.56E+00 0.00E+00 6.56E+00 BaLa-140 <1.09E+01 0.00E+00 1.09E+01 Be-7 <4.38E+01 0.00E+00 4.38E+01 K-40 1.01E+02 3.86E+01 6.37E+01 H3GW <-7.5E+01 0.00E+00 1.99E+02 Sample ID: 292717 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.02E+00 0.00E+00 5.02E+00 Co-58 <5.37E+00 0.00E+00 5.37E+00 Fe-59 <8.91E+00 0.00E+00 8.91E+00 Co-60 <5.76E+00 0.00E+00 5.76E+00 Zn-65 <9.25E+00 0.00E+00 9.25E+00 Zr-95 <9.25E+00 0.00E+00 9.25E+00 Nb-95 <6.06E+00 0.00E+00 6.06E+00 I-131 <1.14E+01 0.00E+00 1.14E+01 Cs-134 <4.78E+00 0.00E+00 4.78E+00 Cs-137 <5.20E+00 0.00E+00 5.20E+00 BaLa-140 <9.83E+00 0.00E+00 9.83E+00 Be-7 <4.50E+01 0.00E+00 4.50E+01 K-40 3.18E+02 3.44E+01 4.22E+01 H3GW <7.71E+01 0.00E+00 1.94E+02 Sample ID: 350754 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.20E+00 0.00E+00 5.20E+00 Co-58 <5.46E+00 0.00E+00 5.46E+00 Fe-59 <5.42E+00 0.00E+00 5.42E+00 Co-60 <6.70E+00 0.00E+00 6.70E+00 Zn-65 <1.19E+01 0.00E+00 1.19E+01 Zr-95 <8.24E+00 0.00E+00 8.24E+00 Nb-95 <6.76E+00 0.00E+00 6.76E+00 I-131 <1.07E+01 0.00E+00 1.07E+01 Cs-134 <5.55E+00 0.00E+00 5.55E+00 Cs-137 <5.79E+00 0.00E+00 5.79E+00 BaLa-140 <8.69E+00 0.00E+00 8.69E+00 Be-7 <4.39E+01 0.00E+00 4.39E+01 K-40 7.00E+01 3.65E+01 3.91E+01 H3GW <7.10E+01 0.00E+00 1.83E+02 Sample ID: 359141 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.00E+00 0.00E+00 6.00E+00 Co-58 <4.94E+00 0.00E+00 4.94E+00 Fe-59 <1.32E+01 0.00E+00 1.32E+01 Co-60 <6.34E+00 0.00E+00 6.34E+00 Zn-65 <1.19E+01 0.00E+00 1.19E+01 Zr-95 <9.87E+00 0.00E+00 9.87E+00 Nb-95 <6.27E+00 0.00E+00 6.27E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <6.48E+00 0.00E+00 6.48E+00 Cs-137 <7.06E+00 0.00E+00 7.06E+00 BaLa-140 <1.17E+01 0.00E+00 1.17E+01 Be-7 <3.70E+01 0.00E+00 3.70E+01 K-40 5.88E+01 4.67E+01 6.76E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 97 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 70 Sample Point 70 [ INDICATOR - E @ 0.4 miles ]

Sample ID: 359141 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-5.1E+01 0.00E+00 1.84E+02 Sample Point 71 [ INDICATOR - SE @ 0.3 miles ]

Sample ID: 281589 Sample Dates: 2/17/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.62E+00 0.00E+00 5.62E+00 Co-58 <6.82E+00 0.00E+00 6.82E+00 Fe-59 <1.46E+01 0.00E+00 1.46E+01 Co-60 <8.49E+00 0.00E+00 8.49E+00 Zn-65 <1.18E+01 0.00E+00 1.18E+01 Zr-95 <1.04E+01 0.00E+00 1.04E+01 Nb-95 <6.37E+00 0.00E+00 6.37E+00 I-131 <8.95E+00 0.00E+00 8.95E+00 Cs-134 <6.16E+00 0.00E+00 6.16E+00 Cs-137 <6.62E+00 0.00E+00 6.62E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <4.83E+01 0.00E+00 4.83E+01 K-40 1.15E+02 2.55E+01 5.50E+01 H3GW <-4.4E+01 0.00E+00 1.99E+02 Sample ID: 292718 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.34E+00 0.00E+00 5.34E+00 Co-58 <4.52E+00 0.00E+00 4.52E+00 Fe-59 <9.25E+00 0.00E+00 9.25E+00 Co-60 <5.34E+00 0.00E+00 5.34E+00 Zn-65 <1.01E+01 0.00E+00 1.01E+01 Zr-95 <7.53E+00 0.00E+00 7.53E+00 Nb-95 <5.34E+00 0.00E+00 5.34E+00 I-131 <8.89E+00 0.00E+00 8.89E+00 Cs-134 <4.22E+00 0.00E+00 4.22E+00 Cs-137 <5.24E+00 0.00E+00 5.24E+00 BaLa-140 <8.98E+00 0.00E+00 8.98E+00 Be-7 <3.80E+01 0.00E+00 3.80E+01 K-40 1.47E+02 3.69E+01 4.81E+01 H3GW <-5.6E+01 0.00E+00 1.95E+02 Sample ID: 354593 Sample Dates: 8/26/2014 - 8/26/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.65E+00 0.00E+00 5.65E+00 Co-58 <5.23E+00 0.00E+00 5.23E+00 Fe-59 <1.20E+01 0.00E+00 1.20E+01 Co-60 <5.30E+00 0.00E+00 5.30E+00 Zn-65 <1.06E+01 0.00E+00 1.06E+01 Zr-95 <1.12E+01 0.00E+00 1.12E+01 Nb-95 <6.71E+00 0.00E+00 6.71E+00 I-131 <1.08E+01 0.00E+00 1.08E+01 Cs-134 <5.30E+00 0.00E+00 5.30E+00 Cs-137 <6.41E+00 0.00E+00 6.41E+00 BaLa-140 <9.50E+00 0.00E+00 9.50E+00 Be-7 <4.65E+01 0.00E+00 4.65E+01 K-40 3.56E+02 8.42E+01 8.46E+01 H3GW <4.71E+01 0.00E+00 1.82E+02 Sample ID: 359142 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.02E+00 0.00E+00 5.02E+00 Co-58 <5.09E+00 0.00E+00 5.09E+00 Fe-59 <1.29E+01 0.00E+00 1.29E+01 Co-60 <5.40E+00 0.00E+00 5.40E+00 Zn-65 <9.12E+00 0.00E+00 9.12E+00 Zr-95 <7.71E+00 0.00E+00 7.71E+00 Nb-95 <5.42E+00 0.00E+00 5.42E+00 I-131 <8.12E+00 0.00E+00 8.12E+00 Cs-134 <4.06E+00 0.00E+00 4.06E+00 Cs-137 <4.86E+00 0.00E+00 4.86E+00 BaLa-140 <1.14E+01 0.00E+00 1.14E+01 Be-7 <3.83E+01 0.00E+00 3.83E+01 K-40 3.24E+01 2.47E+01 3.81E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 98 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 71 Sample Point 71 [ INDICATOR - SE @ 0.3 miles ]

Sample ID: 359142 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-6.9E+01 0.00E+00 1.83E+02 Sample Point 72 [ INDICATOR - SE @ 0.2 miles ]

Sample ID: 281590 Sample Dates: 2/17/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <8.28E+00 0.00E+00 8.28E+00 Co-58 <6.62E+00 0.00E+00 6.62E+00 Fe-59 <1.77E+01 0.00E+00 1.77E+01 Co-60 <6.88E+00 0.00E+00 6.88E+00 Zn-65 <2.10E+01 0.00E+00 2.10E+01 Zr-95 <1.37E+01 0.00E+00 1.37E+01 Nb-95 <1.20E+01 0.00E+00 1.20E+01 I-131 <1.38E+01 0.00E+00 1.38E+01 Cs-134 <7.49E+00 0.00E+00 7.49E+00 Cs-137 <7.09E+00 0.00E+00 7.09E+00 BaLa-140 <1.26E+01 0.00E+00 1.26E+01 Be-7 <7.27E+01 0.00E+00 7.27E+01 K-40 3.63E+02 5.19E+01 8.12E+01 H3GW <-2.4E+01 0.00E+00 1.98E+02 Sample ID: 292719 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <8.72E+00 0.00E+00 8.72E+00 Co-58 <8.05E+00 0.00E+00 8.05E+00 Fe-59 <1.59E+01 0.00E+00 1.59E+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 <1.36E+01 0.00E+00 1.36E+01 Nb-95 <1.06E+01 0.00E+00 1.06E+01 I-131 <1.34E+01 0.00E+00 1.34E+01 Cs-134 <6.96E+00 0.00E+00 6.96E+00 Cs-137 <9.13E+00 0.00E+00 9.13E+00 BaLa-140 <1.19E+01 0.00E+00 1.19E+01 Be-7 <7.34E+01 0.00E+00 7.34E+01 K-40 2.22E+02 5.00E+01 8.84E+01 H3GW <-6.5E+01 0.00E+00 1.94E+02 Sample ID: 350755 Sample Dates: 8/26/2014 - 8/26/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.80E+00 0.00E+00 5.80E+00 Co-58 <6.23E+00 0.00E+00 6.23E+00 Fe-59 <1.50E+01 0.00E+00 1.50E+01 Co-60 <6.13E+00 0.00E+00 6.13E+00 Zn-65 <1.26E+01 0.00E+00 1.26E+01 Zr-95 <1.18E+01 0.00E+00 1.18E+01 Nb-95 <7.30E+00 0.00E+00 7.30E+00 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <6.47E+00 0.00E+00 6.47E+00 Cs-137 <4.85E+00 0.00E+00 4.85E+00 BaLa-140 <8.95E+00 0.00E+00 8.95E+00 Be-7 <5.12E+01 0.00E+00 5.12E+01 K-40 3.48E+01 4.62E+01 7.62E+01 H3GW <9.00E+01 0.00E+00 1.83E+02 Sample ID: 359143 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.11E+00 0.00E+00 5.11E+00 Co-58 <5.58E+00 0.00E+00 5.58E+00 Fe-59 <9.88E+00 0.00E+00 9.88E+00 Co-60 <5.75E+00 0.00E+00 5.75E+00 Zn-65 <1.19E+01 0.00E+00 1.19E+01 Zr-95 <1.10E+01 0.00E+00 1.10E+01 Nb-95 <6.82E+00 0.00E+00 6.82E+00 I-131 <9.37E+00 0.00E+00 9.37E+00 Cs-134 <7.08E+00 0.00E+00 7.08E+00 Cs-137 <5.27E+00 0.00E+00 5.27E+00 BaLa-140 <9.05E+00 0.00E+00 9.05E+00 Be-7 <4.04E+01 0.00E+00 4.04E+01 K-40 3.19E+02 7.01E+01 7.02E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 99 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 72 Sample Point 72 [ INDICATOR - SE @ 0.2 miles ]

Sample ID: 359143 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-1.6E+01 0.00E+00 1.82E+02 Sample Point 73 [ INDICATOR - S @ 0.2 miles ]

Sample ID: 281591 Sample Dates: 2/20/2014 - 2/20/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.53E+00 0.00E+00 7.53E+00 Co-58 <6.72E+00 0.00E+00 6.72E+00 Fe-59 <1.40E+01 0.00E+00 1.40E+01 Co-60 <6.36E+00 0.00E+00 6.36E+00 Zn-65 <1.38E+01 0.00E+00 1.38E+01 Zr-95 <1.29E+01 0.00E+00 1.29E+01 Nb-95 <6.74E+00 0.00E+00 6.74E+00 I-131 <9.16E+00 0.00E+00 9.16E+00 Cs-134 <5.49E+00 0.00E+00 5.49E+00 Cs-137 <6.33E+00 0.00E+00 6.33E+00 BaLa-140 <7.84E+00 0.00E+00 7.84E+00 Be-7 <5.33E+01 0.00E+00 5.33E+01 K-40 2.93E+02 3.92E+01 6.64E+01 H3GW <-7.2E+01 0.00E+00 1.97E+02 Sample ID: 292720 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.48E+00 0.00E+00 4.48E+00 Co-58 <5.55E+00 0.00E+00 5.55E+00 Fe-59 <1.06E+01 0.00E+00 1.06E+01 Co-60 <7.35E+00 0.00E+00 7.35E+00 Zn-65 <1.08E+01 0.00E+00 1.08E+01 Zr-95 <9.51E+00 0.00E+00 9.51E+00 Nb-95 <6.93E+00 0.00E+00 6.93E+00 I-131 <1.08E+01 0.00E+00 1.08E+01 Cs-134 <4.96E+00 0.00E+00 4.96E+00 Cs-137 <5.88E+00 0.00E+00 5.88E+00 BaLa-140 <1.05E+01 0.00E+00 1.05E+01 Be-7 <4.58E+01 0.00E+00 4.58E+01 K-40 5.45E+01 3.54E+01 5.91E+01 H3GW <-5.6E+01 0.00E+00 1.95E+02 Sample ID: 350756 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.81E+00 0.00E+00 5.81E+00 Co-58 <5.65E+00 0.00E+00 5.65E+00 Fe-59 <1.21E+01 0.00E+00 1.21E+01 Co-60 <5.07E+00 0.00E+00 5.07E+00 Zn-65 <1.36E+01 0.00E+00 1.36E+01 Zr-95 <9.48E+00 0.00E+00 9.48E+00 Nb-95 <6.86E+00 0.00E+00 6.86E+00 I-131 <9.13E+00 0.00E+00 9.13E+00 Cs-134 <6.48E+00 0.00E+00 6.48E+00 Cs-137 <5.97E+00 0.00E+00 5.97E+00 BaLa-140 <1.02E+01 0.00E+00 1.02E+01 Be-7 <4.58E+01 0.00E+00 4.58E+01 K-40 <1.10E+02 0.00E+00 1.10E+02 H3GW <-1.7E+01 0.00E+00 1.84E+02 Sample ID: 359144 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.41E+00 0.00E+00 5.41E+00 Co-58 <6.45E+00 0.00E+00 6.45E+00 Fe-59 <1.21E+01 0.00E+00 1.21E+01 Co-60 <5.07E+00 0.00E+00 5.07E+00 Zn-65 <9.84E+00 0.00E+00 9.84E+00 Zr-95 <9.47E+00 0.00E+00 9.47E+00 Nb-95 <7.03E+00 0.00E+00 7.03E+00 I-131 <9.65E+00 0.00E+00 9.65E+00 Cs-134 <5.00E+00 0.00E+00 5.00E+00 Cs-137 <5.22E+00 0.00E+00 5.22E+00 BaLa-140 <7.17E+00 0.00E+00 7.17E+00 Be-7 <4.69E+01 0.00E+00 4.69E+01 K-40 7.56E+01 5.72E+01 8.43E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 100 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 73 Sample Point 73 [ INDICATOR - S @ 0.2 miles ]

Sample ID: 359144 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-2.1E+01 0.00E+00 1.84E+02 Sample Point 74 [ INDICATOR - SSE @ 0.2 miles ]

Sample ID: 281592 Sample Dates: 2/17/2014 - 2/17/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <8.57E+00 0.00E+00 8.57E+00 Co-58 <7.12E+00 0.00E+00 7.12E+00 Fe-59 <1.15E+01 0.00E+00 1.15E+01 Co-60 <1.15E+01 0.00E+00 1.15E+01 Zn-65 <1.68E+01 0.00E+00 1.68E+01 Zr-95 <1.32E+01 0.00E+00 1.32E+01 Nb-95 <7.87E+00 0.00E+00 7.87E+00 I-131 <1.19E+01 0.00E+00 1.19E+01 Cs-134 <4.93E+00 0.00E+00 4.93E+00 Cs-137 <8.11E+00 0.00E+00 8.11E+00 BaLa-140 <9.45E+00 0.00E+00 9.45E+00 Be-7 <4.91E+01 0.00E+00 4.91E+01 K-40 1.22E+02 5.80E+01 8.31E+01 H3GW <-2.4E+00 0.00E+00 1.98E+02 Sample ID: 292721 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <9.06E+00 0.00E+00 9.06E+00 Co-58 <7.94E+00 0.00E+00 7.94E+00 Fe-59 <1.84E+01 0.00E+00 1.84E+01 Co-60 <1.36E+01 0.00E+00 1.36E+01 Zn-65 <1.91E+01 0.00E+00 1.91E+01 Zr-95 <1.27E+01 0.00E+00 1.27E+01 Nb-95 <7.85E+00 0.00E+00 7.85E+00 I-131 <1.38E+01 0.00E+00 1.38E+01 Cs-134 <8.94E+00 0.00E+00 8.94E+00 Cs-137 <8.58E+00 0.00E+00 8.58E+00 BaLa-140 <1.05E+01 0.00E+00 1.05E+01 Be-7 <8.37E+01 0.00E+00 8.37E+01 K-40 2.79E+02 4.37E+01 8.59E+01 H3GW <9.68E+00 0.00E+00 1.95E+02 Sample ID: 350757 Sample Dates: 8/26/2014 - 8/26/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.72E+00 0.00E+00 4.72E+00 Co-58 <5.60E+00 0.00E+00 5.60E+00 Fe-59 <1.14E+01 0.00E+00 1.14E+01 Co-60 <5.95E+00 0.00E+00 5.95E+00 Zn-65 <1.06E+01 0.00E+00 1.06E+01 Zr-95 <8.99E+00 0.00E+00 8.99E+00 Nb-95 <4.75E+00 0.00E+00 4.75E+00 I-131 <7.49E+00 0.00E+00 7.49E+00 Cs-134 <5.79E+00 0.00E+00 5.79E+00 Cs-137 <5.22E+00 0.00E+00 5.22E+00 BaLa-140 <1.11E+01 0.00E+00 1.11E+01 Be-7 <3.80E+01 0.00E+00 3.80E+01 K-40 1.01E+02 4.22E+01 1.14E+01 H3GW <1.24E+02 0.00E+00 1.84E+02 Sample ID: 359145 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.09E+00 0.00E+00 5.09E+00 Co-58 <4.81E+00 0.00E+00 4.81E+00 Fe-59 <1.06E+01 0.00E+00 1.06E+01 Co-60 <6.18E+00 0.00E+00 6.18E+00 Zn-65 <9.60E+00 0.00E+00 9.60E+00 Zr-95 <9.61E+00 0.00E+00 9.61E+00 Nb-95 <5.42E+00 0.00E+00 5.42E+00 I-131 <9.62E+00 0.00E+00 9.62E+00 Cs-134 <4.28E+00 0.00E+00 4.28E+00 Cs-137 <5.14E+00 0.00E+00 5.14E+00 BaLa-140 <9.49E+00 0.00E+00 9.49E+00 Be-7 <4.24E+01 0.00E+00 4.24E+01 K-40 3.37E+01 3.76E+01 5.92E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 101 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 74 Sample Point 74 [ INDICATOR - SSE @ 0.2 miles ]

Sample ID: 359145 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD H3GW <-3.5E+01 0.00E+00 1.83E+02 Sample Point 75 [ INDICATOR - ESE @ 0.1 miles ]

Sample ID: 281593 Sample Dates: 2/20/2014 - 2/20/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.88E+00 0.00E+00 7.88E+00 Co-58 <7.62E+00 0.00E+00 7.62E+00 Fe-59 <1.28E+01 0.00E+00 1.28E+01 Co-60 <9.46E+00 0.00E+00 9.46E+00 Zn-65 <1.64E+01 0.00E+00 1.64E+01 Zr-95 <1.36E+01 0.00E+00 1.36E+01 Nb-95 <8.13E+00 0.00E+00 8.13E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <7.51E+00 0.00E+00 7.51E+00 Cs-137 <8.46E+00 0.00E+00 8.46E+00 BaLa-140 <1.42E+01 0.00E+00 1.42E+01 Be-7 <4.67E+01 0.00E+00 4.67E+01 K-40 <1.30E+02 0.00E+00 1.30E+02 H3GW <-8.4E+01 0.00E+00 1.94E+02 Sample ID: 292722 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.38E+00 0.00E+00 6.38E+00 Co-58 <6.89E+00 0.00E+00 6.89E+00 Fe-59 <1.45E+01 0.00E+00 1.45E+01 Co-60 <8.79E+00 0.00E+00 8.79E+00 Zn-65 <1.19E+01 0.00E+00 1.19E+01 Zr-95 <1.43E+01 0.00E+00 1.43E+01 Nb-95 <7.43E+00 0.00E+00 7.43E+00 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <6.26E+00 0.00E+00 6.26E+00 Cs-137 <7.36E+00 0.00E+00 7.36E+00 BaLa-140 <1.05E+01 0.00E+00 1.05E+01 Be-7 <6.25E+01 0.00E+00 6.25E+01 K-40 1.63E+02 3.74E+01 6.73E+01 H3GW <9.60E+00 0.00E+00 1.85E+02 Sample ID: 350758 Sample Dates: 8/26/2014 - 8/26/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.72E+00 0.00E+00 4.72E+00 Co-58 <4.90E+00 0.00E+00 4.90E+00 Fe-59 <1.01E+01 0.00E+00 1.01E+01 Co-60 <5.53E+00 0.00E+00 5.53E+00 Zn-65 <1.12E+01 0.00E+00 1.12E+01 Zr-95 <1.01E+01 0.00E+00 1.01E+01 Nb-95 <6.74E+00 0.00E+00 6.74E+00 I-131 <7.87E+00 0.00E+00 7.87E+00 Cs-134 <5.54E+00 0.00E+00 5.54E+00 Cs-137 <4.80E+00 0.00E+00 4.80E+00 BaLa-140 <8.88E+00 0.00E+00 8.88E+00 Be-7 <4.06E+01 0.00E+00 4.06E+01 K-40 7.35E+01 3.97E+01 4.00E+01 H3GW <-1.2E+01 0.00E+00 1.81E+02 Sample ID: 359146 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.13E+00 0.00E+00 6.13E+00 Co-58 <5.27E+00 0.00E+00 5.27E+00 Fe-59 <9.53E+00 0.00E+00 9.53E+00 Co-60 <5.96E+00 0.00E+00 5.96E+00 Zn-65 <9.23E+00 0.00E+00 9.23E+00 Zr-95 <1.14E+01 0.00E+00 1.14E+01 Nb-95 <6.17E+00 0.00E+00 6.17E+00 I-131 <1.00E+01 0.00E+00 1.00E+01 Cs-134 <5.21E+00 0.00E+00 5.21E+00 Cs-137 <6.90E+00 0.00E+00 6.90E+00 BaLa-140 <1.16E+01 0.00E+00 1.16E+01 Be-7 <4.26E+01 0.00E+00 4.26E+01 K-40 <9.34E+01 0.00E+00 9.34E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 102 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 75 Sample Point 75 [ INDICATOR - ESE @ 0.1 miles ]

Sample ID: 359146 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD H3GW <6.96E+00 0.00E+00 1.70E+02 Sample Point 76 [ INDICATOR - S @ 0.1 miles ]

Sample ID: 281594 Sample Dates: 2/19/2014 - 2/19/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.53E+00 0.00E+00 6.53E+00 Co-58 <6.61E+00 0.00E+00 6.61E+00 Fe-59 <1.40E+01 0.00E+00 1.40E+01 Co-60 <6.80E+00 0.00E+00 6.80E+00 Zn-65 <1.47E+01 0.00E+00 1.47E+01 Zr-95 <9.49E+00 0.00E+00 9.49E+00 Nb-95 <7.63E+00 0.00E+00 7.63E+00 I-131 <1.03E+01 0.00E+00 1.03E+01 Cs-134 <6.03E+00 0.00E+00 6.03E+00 Cs-137 <6.61E+00 0.00E+00 6.61E+00 BaLa-140 <1.33E+01 0.00E+00 1.33E+01 Be-7 <6.03E+01 0.00E+00 6.03E+01 K-40 3.25E+02 5.05E+01 7.01E+01 H3GW 3.78E+02 6.50E+01 1.95E+02 Sample ID: 292723 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.97E+00 0.00E+00 7.97E+00 Co-58 <7.03E+00 0.00E+00 7.03E+00 Fe-59 <1.38E+01 0.00E+00 1.38E+01 Co-60 <9.55E+00 0.00E+00 9.55E+00 Zn-65 <1.25E+01 0.00E+00 1.25E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <8.43E+00 0.00E+00 8.43E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <8.03E+00 0.00E+00 8.03E+00 Cs-137 <7.76E+00 0.00E+00 7.76E+00 BaLa-140 <1.37E+01 0.00E+00 1.37E+01 Be-7 <5.95E+01 0.00E+00 5.95E+01 K-40 3.19E+02 5.64E+01 6.80E+01 H3GW 3.66E+02 6.21E+01 1.84E+02 Sample ID: 350759 Sample Dates: 8/26/2014 - 8/26/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.18E+00 0.00E+00 6.18E+00 Co-58 <3.74E+00 0.00E+00 3.74E+00 Fe-59 <9.56E+00 0.00E+00 9.56E+00 Co-60 <3.92E+00 0.00E+00 3.92E+00 Zn-65 <1.36E+01 0.00E+00 1.36E+01 Zr-95 <1.06E+01 0.00E+00 1.06E+01 Nb-95 <5.62E+00 0.00E+00 5.62E+00 I-131 <1.00E+01 0.00E+00 1.00E+01 Cs-134 <6.48E+00 0.00E+00 6.48E+00 Cs-137 <6.30E+00 0.00E+00 6.30E+00 BaLa-140 <8.41E+00 0.00E+00 8.41E+00 Be-7 <4.59E+01 0.00E+00 4.59E+01 K-40 5.81E+01 4.79E+01 7.07E+01 H3GW 4.42E+02 1.20E+02 1.81E+02 Sample ID: 359147 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.87E+00 0.00E+00 4.87E+00 Co-58 <6.29E+00 0.00E+00 6.29E+00 Fe-59 <1.06E+01 0.00E+00 1.06E+01 Co-60 <3.03E+00 0.00E+00 3.03E+00 Zn-65 <9.60E+00 0.00E+00 9.60E+00 Zr-95 <6.37E+00 0.00E+00 6.37E+00 Nb-95 <4.94E+00 0.00E+00 4.94E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <6.57E+00 0.00E+00 6.57E+00 Cs-137 <3.71E+00 0.00E+00 3.71E+00 BaLa-140 <1.09E+01 0.00E+00 1.09E+01 Be-7 <4.36E+01 0.00E+00 4.36E+01 K-40 <1.05E+02 0.00E+00 1.05E+02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 103 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 76 Sample Point 76 [ INDICATOR - S @ 0.1 miles ]

Sample ID: 359147 Sample Dates: 11/6/2014 - 11/6/2014 Nuclide Activity Sigma Error 1 LLD H3GW 3.54E+02 1.11E+02 1.70E+02 Sample Point 77 [ INDICATOR - S @ 0.4 miles ]

Sample ID: 281595 Sample Dates: 2/19/2014 - 2/19/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.62E+00 0.00E+00 5.62E+00 Co-58 <7.36E+00 0.00E+00 7.36E+00 Fe-59 <1.35E+01 0.00E+00 1.35E+01 Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <1.40E+01 0.00E+00 1.40E+01 Zr-95 <1.40E+01 0.00E+00 1.40E+01 Nb-95 <5.77E+00 0.00E+00 5.77E+00 I-131 <8.86E+00 0.00E+00 8.86E+00 Cs-134 <6.34E+00 0.00E+00 6.34E+00 Cs-137 <5.60E+00 0.00E+00 5.60E+00 BaLa-140 <1.02E+01 0.00E+00 1.02E+01 Be-7 <5.08E+01 0.00E+00 5.08E+01 K-40 <1.20E+02 0.00E+00 1.20E+02 H3GW <1.79E+02 0.00E+00 1.95E+02 Sample ID: 292724 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.34E+00 0.00E+00 6.34E+00 Co-58 <5.90E+00 0.00E+00 5.90E+00 Fe-59 <1.52E+01 0.00E+00 1.52E+01 Co-60 <1.03E+01 0.00E+00 1.03E+01 Zn-65 <1.60E+01 0.00E+00 1.60E+01 Zr-95 <1.30E+01 0.00E+00 1.30E+01 Nb-95 <9.14E+00 0.00E+00 9.14E+00 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <7.72E+00 0.00E+00 7.72E+00 Cs-137 <8.58E+00 0.00E+00 8.58E+00 BaLa-140 <1.23E+01 0.00E+00 1.23E+01 Be-7 <6.35E+01 0.00E+00 6.35E+01 K-40 2.11E+02 4.02E+01 8.28E+01 H3GW 2.02E+02 5.97E+01 1.85E+02 Sample ID: 350760 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.21E+00 0.00E+00 4.21E+00 Co-58 <4.88E+00 0.00E+00 4.88E+00 Fe-59 <1.09E+01 0.00E+00 1.09E+01 Co-60 <4.95E+00 0.00E+00 4.95E+00 Zn-65 <8.43E+00 0.00E+00 8.43E+00 Zr-95 <9.10E+00 0.00E+00 9.10E+00 Nb-95 <5.60E+00 0.00E+00 5.60E+00 I-131 <8.57E+00 0.00E+00 8.57E+00 Cs-134 <6.02E+00 0.00E+00 6.02E+00 Cs-137 <4.35E+00 0.00E+00 4.35E+00 BaLa-140 <7.50E+00 0.00E+00 7.50E+00 Be-7 <3.40E+01 0.00E+00 3.40E+01 K-40 3.83E+02 7.36E+01 6.95E+01 H3GW 2.31E+02 1.15E+02 1.84E+02 Sample ID: 359148 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.97E+00 0.00E+00 6.97E+00 Co-58 <6.46E+00 0.00E+00 6.46E+00 Fe-59 <1.14E+01 0.00E+00 1.14E+01 Co-60 <6.38E+00 0.00E+00 6.38E+00 Zn-65 <1.50E+01 0.00E+00 1.50E+01 Zr-95 <1.08E+01 0.00E+00 1.08E+01 Nb-95 <7.04E+00 0.00E+00 7.04E+00 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <6.76E+00 0.00E+00 6.76E+00 Cs-137 <5.70E+00 0.00E+00 5.70E+00 BaLa-140 <9.76E+00 0.00E+00 9.76E+00 Be-7 <4.89E+01 0.00E+00 4.89E+01 K-40 2.74E+02 8.42E+01 9.53E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 104 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 77 Sample Point 77 [ INDICATOR - S @ 0.4 miles ]

Sample ID: 359148 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW 3.43E+02 1.11E+02 1.71E+02 Sample Point 78 [ INDICATOR - S @ 0.5 miles ]

Sample ID: 281596 Sample Dates: 2/19/2014 - 2/19/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <9.07E+00 0.00E+00 9.07E+00 Co-58 <9.11E+00 0.00E+00 9.11E+00 Fe-59 <2.03E+01 0.00E+00 2.03E+01 Co-60 <1.21E+01 0.00E+00 1.21E+01 Zn-65 <1.55E+01 0.00E+00 1.55E+01 Zr-95 <1.40E+01 0.00E+00 1.40E+01 Nb-95 <9.71E+00 0.00E+00 9.71E+00 I-131 <1.13E+01 0.00E+00 1.13E+01 Cs-134 <7.61E+00 0.00E+00 7.61E+00 Cs-137 <8.65E+00 0.00E+00 8.65E+00 BaLa-140 <1.39E+01 0.00E+00 1.39E+01 Be-7 <6.62E+01 0.00E+00 6.62E+01 K-40 <1.42E+02 0.00E+00 1.42E+02 H3GW 2.32E+02 6.25E+01 1.94E+02 Sample ID: 292725 Sample Dates: 5/28/2014 - 5/28/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.10E+00 0.00E+00 5.10E+00 Co-58 <4.93E+00 0.00E+00 4.93E+00 Fe-59 <1.40E+01 0.00E+00 1.40E+01 Co-60 <5.62E+00 0.00E+00 5.62E+00 Zn-65 <1.60E+01 0.00E+00 1.60E+01 Zr-95 <8.23E+00 0.00E+00 8.23E+00 Nb-95 <7.16E+00 0.00E+00 7.16E+00 I-131 <1.34E+01 0.00E+00 1.34E+01 Cs-134 <5.82E+00 0.00E+00 5.82E+00 Cs-137 <7.03E+00 0.00E+00 7.03E+00 BaLa-140 <9.19E+00 0.00E+00 9.19E+00 Be-7 <4.72E+01 0.00E+00 4.72E+01 K-40 2.82E+02 4.16E+01 7.36E+01 H3GW 4.64E+02 6.34E+01 1.84E+02 Sample ID: 350761 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.94E+00 0.00E+00 5.94E+00 Co-58 <7.40E+00 0.00E+00 7.40E+00 Fe-59 <1.47E+01 0.00E+00 1.47E+01 Co-60 <7.60E+00 0.00E+00 7.60E+00 Zn-65 <1.60E+01 0.00E+00 1.60E+01 Zr-95 <1.13E+01 0.00E+00 1.13E+01 Nb-95 <8.30E+00 0.00E+00 8.30E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <7.59E+00 0.00E+00 7.59E+00 Cs-137 <7.08E+00 0.00E+00 7.08E+00 BaLa-140 <9.99E+00 0.00E+00 9.99E+00 Be-7 <6.03E+01 0.00E+00 6.03E+01 K-40 4.70E+02 1.05E+02 8.09E+01 H3GW 6.33E+02 1.27E+02 1.84E+02 Sample ID: 359149 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.10E+00 0.00E+00 5.10E+00 Co-58 <4.85E+00 0.00E+00 4.85E+00 Fe-59 <1.13E+01 0.00E+00 1.13E+01 Co-60 <4.94E+00 0.00E+00 4.94E+00 Zn-65 <1.22E+01 0.00E+00 1.22E+01 Zr-95 <8.04E+00 0.00E+00 8.04E+00 Nb-95 <6.56E+00 0.00E+00 6.56E+00 I-131 <9.08E+00 0.00E+00 9.08E+00 Cs-134 <5.69E+00 0.00E+00 5.69E+00 Cs-137 <6.04E+00 0.00E+00 6.04E+00 BaLa-140 <1.14E+01 0.00E+00 1.14E+01 Be-7 <4.63E+01 0.00E+00 4.63E+01 K-40 8.12E+01 6.13E+01 9.15E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 105 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 78 Sample Point 78 [ INDICATOR - S @ 0.5 miles ]

Sample ID: 359149 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW 5.92E+02 1.18E+02 1.70E+02 Sample Point 79 [ INDICATOR - S @ 0.5 miles ]

Sample ID: 281597 Sample Dates: 2/19/2014 - 2/19/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <8.90E+00 0.00E+00 8.90E+00 Co-58 <7.22E+00 0.00E+00 7.22E+00 Fe-59 <1.85E+01 0.00E+00 1.85E+01 Co-60 <9.76E+00 0.00E+00 9.76E+00 Zn-65 <1.54E+01 0.00E+00 1.54E+01 Zr-95 <1.25E+01 0.00E+00 1.25E+01 Nb-95 <9.91E+00 0.00E+00 9.91E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <6.86E+00 0.00E+00 6.86E+00 Cs-137 <7.03E+00 0.00E+00 7.03E+00 BaLa-140 <1.21E+01 0.00E+00 1.21E+01 Be-7 <6.81E+01 0.00E+00 6.81E+01 K-40 4.37E+02 4.76E+01 6.59E+01 H3GW 3.51E+02 6.43E+01 1.94E+02 Sample ID: 292726 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.78E+00 0.00E+00 4.78E+00 Co-58 <5.31E+00 0.00E+00 5.31E+00 Fe-59 <9.80E+00 0.00E+00 9.80E+00 Co-60 <4.94E+00 0.00E+00 4.94E+00 Zn-65 <1.01E+01 0.00E+00 1.01E+01 Zr-95 <8.95E+00 0.00E+00 8.95E+00 Nb-95 <5.81E+00 0.00E+00 5.81E+00 I-131 <7.72E+00 0.00E+00 7.72E+00 Cs-134 <3.93E+00 0.00E+00 3.93E+00 Cs-137 <5.12E+00 0.00E+00 5.12E+00 BaLa-140 <8.15E+00 0.00E+00 8.15E+00 Be-7 <3.82E+01 0.00E+00 3.82E+01 K-40 1.02E+02 2.80E+01 4.83E+01 H3GW 4.73E+02 6.41E+01 1.85E+02 Sample ID: 350762 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.34E+00 0.00E+00 5.34E+00 Co-58 <5.72E+00 0.00E+00 5.72E+00 Fe-59 <1.09E+01 0.00E+00 1.09E+01 Co-60 <5.36E+00 0.00E+00 5.36E+00 Zn-65 <1.12E+01 0.00E+00 1.12E+01 Zr-95 <1.16E+01 0.00E+00 1.16E+01 Nb-95 <6.99E+00 0.00E+00 6.99E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <7.20E+00 0.00E+00 7.20E+00 Cs-137 <5.03E+00 0.00E+00 5.03E+00 BaLa-140 <1.01E+01 0.00E+00 1.01E+01 Be-7 <4.91E+01 0.00E+00 4.91E+01 K-40 4.20E+02 1.54E+02 2.29E+02 H3GW 4.53E+02 1.20E+02 1.82E+02 Sample ID: 359150 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.96E+00 0.00E+00 5.96E+00 Co-58 <5.92E+00 0.00E+00 5.92E+00 Fe-59 <1.10E+01 0.00E+00 1.10E+01 Co-60 <4.88E+00 0.00E+00 4.88E+00 Zn-65 <1.19E+01 0.00E+00 1.19E+01 Zr-95 <9.76E+00 0.00E+00 9.76E+00 Nb-95 <6.47E+00 0.00E+00 6.47E+00 I-131 <9.37E+00 0.00E+00 9.37E+00 Cs-134 <7.09E+00 0.00E+00 7.09E+00 Cs-137 <4.59E+00 0.00E+00 4.59E+00 BaLa-140 <8.38E+00 0.00E+00 8.38E+00 Be-7 <4.42E+01 0.00E+00 4.42E+01 K-40 3.79E+02 8.97E+01 1.02E+02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 106 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 79 Sample Point 79 [ INDICATOR - S @ 0.5 miles ]

Sample ID: 359150 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW 3.76E+02 1.11E+02 1.70E+02 Sample Point 80 [ INDICATOR - S @ 0.6 miles ]

Sample ID: 281598 Sample Dates: 2/19/2014 - 2/19/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.51E+00 0.00E+00 7.51E+00 Co-58 <7.11E+00 0.00E+00 7.11E+00 Fe-59 <1.05E+01 0.00E+00 1.05E+01 Co-60 <7.68E+00 0.00E+00 7.68E+00 Zn-65 <1.14E+01 0.00E+00 1.14E+01 Zr-95 <1.32E+01 0.00E+00 1.32E+01 Nb-95 <8.51E+00 0.00E+00 8.51E+00 I-131 <8.09E+00 0.00E+00 8.09E+00 Cs-134 <6.85E+00 0.00E+00 6.85E+00 Cs-137 <7.81E+00 0.00E+00 7.81E+00 BaLa-140 <1.18E+01 0.00E+00 1.18E+01 Be-7 <5.32E+01 0.00E+00 5.32E+01 K-40 1.60E+02 5.85E+01 7.57E+01 H3GW 5.43E+02 6.74E+01 1.95E+02 Sample ID: 292727 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.74E+00 0.00E+00 4.74E+00 Co-58 <4.62E+00 0.00E+00 4.62E+00 Fe-59 <1.00E+01 0.00E+00 1.00E+01 Co-60 <5.30E+00 0.00E+00 5.30E+00 Zn-65 <9.14E+00 0.00E+00 9.14E+00 Zr-95 <8.68E+00 0.00E+00 8.68E+00 Nb-95 <5.63E+00 0.00E+00 5.63E+00 I-131 <1.37E+01 0.00E+00 1.37E+01 Cs-134 <4.15E+00 0.00E+00 4.15E+00 Cs-137 <5.08E+00 0.00E+00 5.08E+00 BaLa-140 <9.92E+00 0.00E+00 9.92E+00 Be-7 <4.20E+01 0.00E+00 4.20E+01 K-40 4.91E+02 3.06E+01 4.42E+01 H3GW 5.86E+02 6.58E+01 1.85E+02 Sample ID: 350763 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.81E+00 0.00E+00 5.81E+00 Co-58 <5.20E+00 0.00E+00 5.20E+00 Fe-59 <1.22E+01 0.00E+00 1.22E+01 Co-60 <4.54E+00 0.00E+00 4.54E+00 Zn-65 <1.25E+01 0.00E+00 1.25E+01 Zr-95 <1.06E+01 0.00E+00 1.06E+01 Nb-95 <7.41E+00 0.00E+00 7.41E+00 I-131 <1.04E+01 0.00E+00 1.04E+01 Cs-134 <6.69E+00 0.00E+00 6.69E+00 Cs-137 <5.42E+00 0.00E+00 5.42E+00 BaLa-140 <7.26E+00 0.00E+00 7.26E+00 Be-7 <4.70E+01 0.00E+00 4.70E+01 K-40 1.34E+02 5.49E+01 5.30E+01 H3GW 3.80E+02 1.19E+02 1.83E+02 Sample ID: 359151 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.01E+00 0.00E+00 6.01E+00 Co-58 <4.99E+00 0.00E+00 4.99E+00 Fe-59 <1.34E+01 0.00E+00 1.34E+01 Co-60 <4.54E+00 0.00E+00 4.54E+00 Zn-65 <9.04E+00 0.00E+00 9.04E+00 Zr-95 <9.17E+00 0.00E+00 9.17E+00 Nb-95 <6.18E+00 0.00E+00 6.18E+00 I-131 <1.14E+01 0.00E+00 1.14E+01 Cs-134 <5.80E+00 0.00E+00 5.80E+00 Cs-137 <6.46E+00 0.00E+00 6.46E+00 BaLa-140 <9.85E+00 0.00E+00 9.85E+00 Be-7 <4.87E+01 0.00E+00 4.87E+01 K-40 8.03E+01 4.27E+01 4.54E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 107 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 80 Sample Point 80 [ INDICATOR - S @ 0.6 miles ]

Sample ID: 359151 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW 4.69E+02 1.15E+02 1.71E+02 Sample Point 81 [ INDICATOR - S @ 0.6 miles ]

Sample ID: 281599 Sample Dates: 2/19/2014 - 2/19/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.52E+00 0.00E+00 5.52E+00 Co-58 <5.54E+00 0.00E+00 5.54E+00 Fe-59 <1.08E+01 0.00E+00 1.08E+01 Co-60 <6.89E+00 0.00E+00 6.89E+00 Zn-65 <1.39E+01 0.00E+00 1.39E+01 Zr-95 <1.17E+01 0.00E+00 1.17E+01 Nb-95 <5.47E+00 0.00E+00 5.47E+00 I-131 <8.20E+00 0.00E+00 8.20E+00 Cs-134 <5.24E+00 0.00E+00 5.24E+00 Cs-137 <5.47E+00 0.00E+00 5.47E+00 BaLa-140 <6.83E+00 0.00E+00 6.83E+00 Be-7 <5.00E+01 0.00E+00 5.00E+01 K-40 1.35E+02 3.07E+01 6.19E+01 H3GW 3.68E+02 6.44E+01 1.93E+02 Sample ID: 292728 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.75E+00 0.00E+00 7.75E+00 Co-58 <6.36E+00 0.00E+00 6.36E+00 Fe-59 <1.23E+01 0.00E+00 1.23E+01 Co-60 <1.06E+01 0.00E+00 1.06E+01 Zn-65 <1.31E+01 0.00E+00 1.31E+01 Zr-95 <1.12E+01 0.00E+00 1.12E+01 Nb-95 <6.58E+00 0.00E+00 6.58E+00 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <6.04E+00 0.00E+00 6.04E+00 Cs-137 <7.37E+00 0.00E+00 7.37E+00 BaLa-140 <1.04E+01 0.00E+00 1.04E+01 Be-7 <5.40E+01 0.00E+00 5.40E+01 K-40 7.60E+01 4.40E+01 8.52E+01 H3GW 4.14E+02 6.27E+01 1.84E+02 Sample ID: 350764 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.46E+00 0.00E+00 5.46E+00 Co-58 <5.12E+00 0.00E+00 5.12E+00 Fe-59 <9.52E+00 0.00E+00 9.52E+00 Co-60 <5.76E+00 0.00E+00 5.76E+00 Zn-65 <1.10E+01 0.00E+00 1.10E+01 Zr-95 <9.76E+00 0.00E+00 9.76E+00 Nb-95 <7.27E+00 0.00E+00 7.27E+00 I-131 <1.10E+01 0.00E+00 1.10E+01 Cs-134 <4.23E+00 0.00E+00 4.23E+00 Cs-137 <5.24E+00 0.00E+00 5.24E+00 BaLa-140 <1.18E+01 0.00E+00 1.18E+01 Be-7 <4.20E+01 0.00E+00 4.20E+01 K-40 5.58E+01 5.75E+01 9.13E+01 H3GW 5.07E+02 1.22E+02 1.82E+02 Sample ID: 359152 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.63E+00 0.00E+00 5.63E+00 Co-58 <5.92E+00 0.00E+00 5.92E+00 Fe-59 <1.23E+01 0.00E+00 1.23E+01 Co-60 <5.53E+00 0.00E+00 5.53E+00 Zn-65 <8.10E+00 0.00E+00 8.10E+00 Zr-95 <9.58E+00 0.00E+00 9.58E+00 Nb-95 <7.17E+00 0.00E+00 7.17E+00 I-131 <1.05E+01 0.00E+00 1.05E+01 Cs-134 <6.90E+00 0.00E+00 6.90E+00 Cs-137 <5.42E+00 0.00E+00 5.42E+00 BaLa-140 <1.07E+01 0.00E+00 1.07E+01 Be-7 <4.75E+01 0.00E+00 4.75E+01 K-40 9.20E+01 5.46E+01 7.24E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 108 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 81 Sample Point 81 [ INDICATOR - S @ 0.6 miles ]

Sample ID: 359152 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW 5.73E+02 1.18E+02 1.70E+02 Sample Point 82 [ INDICATOR - S @ 0.6 miles ]

Sample ID: 281600 Sample Dates: 2/19/2014 - 2/19/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.63E+00 0.00E+00 6.63E+00 Co-58 <5.83E+00 0.00E+00 5.83E+00 Fe-59 <1.64E+01 0.00E+00 1.64E+01 Co-60 <9.41E+00 0.00E+00 9.41E+00 Zn-65 <1.47E+01 0.00E+00 1.47E+01 Zr-95 <1.35E+01 0.00E+00 1.35E+01 Nb-95 <8.54E+00 0.00E+00 8.54E+00 I-131 <8.77E+00 0.00E+00 8.77E+00 Cs-134 <6.37E+00 0.00E+00 6.37E+00 Cs-137 <7.91E+00 0.00E+00 7.91E+00 BaLa-140 <1.27E+01 0.00E+00 1.27E+01 Be-7 <5.20E+01 0.00E+00 5.20E+01 K-40 2.12E+02 4.03E+01 6.75E+01 H3GW <9.40E+00 0.00E+00 1.95E+02 Sample ID: 292729 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <7.35E+00 0.00E+00 7.35E+00 Co-58 <7.40E+00 0.00E+00 7.40E+00 Fe-59 <1.56E+01 0.00E+00 1.56E+01 Co-60 <9.33E+00 0.00E+00 9.33E+00 Zn-65 <1.54E+01 0.00E+00 1.54E+01 Zr-95 <9.51E+00 0.00E+00 9.51E+00 Nb-95 <7.82E+00 0.00E+00 7.82E+00 I-131 <1.42E+01 0.00E+00 1.42E+01 Cs-134 <6.49E+00 0.00E+00 6.49E+00 Cs-137 <6.93E+00 0.00E+00 6.93E+00 BaLa-140 <1.44E+01 0.00E+00 1.44E+01 Be-7 <6.34E+01 0.00E+00 6.34E+01 K-40 2.00E+02 4.94E+01 9.37E+01 H3GW <8.84E+01 0.00E+00 1.84E+02 Sample ID: 350765 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.49E+00 0.00E+00 4.49E+00 Co-58 <5.91E+00 0.00E+00 5.91E+00 Fe-59 <9.68E+00 0.00E+00 9.68E+00 Co-60 <4.54E+00 0.00E+00 4.54E+00 Zn-65 <1.37E+01 0.00E+00 1.37E+01 Zr-95 <8.26E+00 0.00E+00 8.26E+00 Nb-95 <6.16E+00 0.00E+00 6.16E+00 I-131 <1.03E+01 0.00E+00 1.03E+01 Cs-134 <5.55E+00 0.00E+00 5.55E+00 Cs-137 <6.14E+00 0.00E+00 6.14E+00 BaLa-140 <6.00E+00 0.00E+00 6.00E+00 Be-7 <4.40E+01 0.00E+00 4.40E+01 K-40 9.58E+01 6.76E+01 9.99E+01 H3GW <4.70E+01 0.00E+00 1.82E+02 Sample ID: 359153 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <4.14E+00 0.00E+00 4.14E+00 Co-58 <5.14E+00 0.00E+00 5.14E+00 Fe-59 <1.02E+01 0.00E+00 1.02E+01 Co-60 <6.18E+00 0.00E+00 6.18E+00 Zn-65 <1.10E+01 0.00E+00 1.10E+01 Zr-95 <9.41E+00 0.00E+00 9.41E+00 Nb-95 <5.37E+00 0.00E+00 5.37E+00 I-131 <7.55E+00 0.00E+00 7.55E+00 Cs-134 <5.93E+00 0.00E+00 5.93E+00 Cs-137 <4.93E+00 0.00E+00 4.93E+00 BaLa-140 <8.57E+00 0.00E+00 8.57E+00 Be-7 <3.70E+01 0.00E+00 3.70E+01 K-40 <8.77E+01 0.00E+00 8.77E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 109 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 82 Sample Point 82 [ INDICATOR - S @ 0.6 miles ]

Sample ID: 359153 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW <1.23E+02 0.00E+00 1.70E+02 Sample Point 83 [ INDICATOR - SSW @ 1.6 miles ]

Sample ID: 281601 Sample Dates: 2/18/2014 - 2/18/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.88E+00 0.00E+00 5.88E+00 Co-58 <5.77E+00 0.00E+00 5.77E+00 Fe-59 <1.41E+01 0.00E+00 1.41E+01 Co-60 <8.21E+00 0.00E+00 8.21E+00 Zn-65 <1.59E+01 0.00E+00 1.59E+01 Zr-95 <1.16E+01 0.00E+00 1.16E+01 Nb-95 <7.74E+00 0.00E+00 7.74E+00 I-131 <9.33E+00 0.00E+00 9.33E+00 Cs-134 <6.76E+00 0.00E+00 6.76E+00 Cs-137 <6.12E+00 0.00E+00 6.12E+00 BaLa-140 <1.09E+01 0.00E+00 1.09E+01 Be-7 <5.81E+01 0.00E+00 5.81E+01 K-40 1.80E+02 4.57E+01 8.22E+01 H3GW 1.71E+03 8.22E+01 1.93E+02 Sample ID: 292730 Sample Dates: 5/27/2014 - 5/27/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <8.18E+00 0.00E+00 8.18E+00 Co-58 <7.50E+00 0.00E+00 7.50E+00 Fe-59 <1.66E+01 0.00E+00 1.66E+01 Co-60 <8.49E+00 0.00E+00 8.49E+00 Zn-65 <1.44E+01 0.00E+00 1.44E+01 Zr-95 <1.12E+01 0.00E+00 1.12E+01 Nb-95 <9.57E+00 0.00E+00 9.57E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <6.48E+00 0.00E+00 6.48E+00 Cs-137 <8.03E+00 0.00E+00 8.03E+00 BaLa-140 <1.20E+01 0.00E+00 1.20E+01 Be-7 <6.84E+01 0.00E+00 6.84E+01 K-40 1.37E+02 3.96E+01 9.42E+01 H3GW 1.69E+03 8.07E+01 1.84E+02 Sample ID: 350766 Sample Dates: 8/25/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <6.02E+00 0.00E+00 6.02E+00 Co-58 <4.44E+00 0.00E+00 4.44E+00 Fe-59 <1.39E+01 0.00E+00 1.39E+01 Co-60 <7.04E+00 0.00E+00 7.04E+00 Zn-65 <1.31E+01 0.00E+00 1.31E+01 Zr-95 <1.07E+01 0.00E+00 1.07E+01 Nb-95 <5.97E+00 0.00E+00 5.97E+00 I-131 <1.15E+01 0.00E+00 1.15E+01 Cs-134 <6.90E+00 0.00E+00 6.90E+00 Cs-137 <5.97E+00 0.00E+00 5.97E+00 BaLa-140 <1.16E+01 0.00E+00 1.16E+01 Be-7 <3.11E+01 0.00E+00 3.11E+01 K-40 7.51E+01 5.94E+01 8.91E+01 H3GW 1.65E+03 1.54E+02 1.83E+02 Sample ID: 359154 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <5.32E+00 0.00E+00 5.32E+00 Co-58 <5.81E+00 0.00E+00 5.81E+00 Fe-59 <9.49E+00 0.00E+00 9.49E+00 Co-60 <5.80E+00 0.00E+00 5.80E+00 Zn-65 <1.11E+01 0.00E+00 1.11E+01 Zr-95 <9.81E+00 0.00E+00 9.81E+00 Nb-95 <5.38E+00 0.00E+00 5.38E+00 I-131 <1.03E+01 0.00E+00 1.03E+01 Cs-134 <7.34E+00 0.00E+00 7.34E+00 Cs-137 <3.99E+00 0.00E+00 3.99E+00 BaLa-140 <8.62E+00 0.00E+00 8.62E+00 Be-7 <5.20E+01 0.00E+00 5.20E+01 K-40 <9.67E+01 0.00E+00 9.67E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 110 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pCi/l 83 Sample Point 83 [ INDICATOR - SSW @ 1.6 miles ]

Sample ID: 359154 Sample Dates: 11/5/2014 - 11/5/2014 Nuclide Activity Sigma Error 1 LLD H3GW 1.54E+03 1.45E+02 1.71E+02 Media Type: MILK Concentration (Activity): pCi/l 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 278815 Sample Dates: 1/6/2014 - 1/6/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <4.97E+00 0.00E+00 4.97E+00 K-40 4.99E+01 5.48E+00 7.01E+00 LLI-131 <6.47E-01 0.00E+00 6.47E-01 I-131 <8.36E+00 0.00E+00 8.36E+00 Cs-134 <9.00E+00 0.00E+00 9.00E+00 Cs-137 <8.83E+00 0.00E+00 8.83E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <8.14E+01 0.00E+00 8.14E+01 K-40 1.54E+03 1.24E+02 1.14E+02 Sample ID: 280772 Sample Dates: 2/3/2014 - 2/3/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <4.31E+00 0.00E+00 4.31E+00 K-40 1.35E+01 3.74E+00 6.08E+00 LLI-131 <5.58E-01 0.00E+00 5.58E-01 I-131 <8.79E+00 0.00E+00 8.79E+00 Cs-134 <6.70E+00 0.00E+00 6.70E+00 Cs-137 <7.95E+00 0.00E+00 7.95E+00 BaLa-140 <1.20E+01 0.00E+00 1.20E+01 Be-7 <5.71E+01 0.00E+00 5.71E+01 K-40 1.46E+03 1.13E+02 1.06E+02 Sample ID: 282826 Sample Dates: 3/3/2014 - 3/3/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <4.33E+00 0.00E+00 4.33E+00 K-40 1.77E+01 3.97E+00 6.74E+00 LLI-131 <6.10E-01 0.00E+00 6.10E-01 I-131 <3.26E+00 0.00E+00 3.26E+00 Cs-134 <2.40E+00 0.00E+00 2.40E+00 Cs-137 <3.36E+00 0.00E+00 3.36E+00 BaLa-140 <2.68E+00 0.00E+00 2.68E+00 Be-7 <2.12E+01 0.00E+00 2.12E+01 K-40 1.50E+03 4.13E+01 2.39E+01 Sample ID: 285689 Sample Dates: 4/7/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.45E+00 0.00E+00 3.45E+00 K-40 2.16E+01 4.61E+00 5.06E+00 LLI-131 <4.96E-01 0.00E+00 4.96E-01 I-131 <6.78E+00 0.00E+00 6.78E+00 Cs-134 <5.43E+00 0.00E+00 5.43E+00 Cs-137 <6.84E+00 0.00E+00 6.84E+00 BaLa-140 <5.64E+00 0.00E+00 5.64E+00 Be-7 <5.08E+01 0.00E+00 5.08E+01 K-40 1.49E+03 7.95E+01 4.36E+01 Sample ID: 289217 Sample Dates: 5/5/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.80E+00 0.00E+00 3.80E+00 K-40 4.43E+01 3.89E+00 5.82E+00 LLI-131 <5.53E-01 0.00E+00 5.53E-01 I-131 <8.32E+00 0.00E+00 8.32E+00 Cs-134 <8.18E+00 0.00E+00 8.18E+00 Cs-137 <1.01E+01 0.00E+00 1.01E+01 BaLa-140 <9.17E+00 0.00E+00 9.17E+00 Be-7 <5.88E+01 0.00E+00 5.88E+01 K-40 1.61E+03 1.19E+02 1.29E+02 Sample ID: 292970 Sample Dates: 6/2/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <4.57E+00 0.00E+00 4.57E+00 K-40 <1.40E+01 0.00E+00 1.40E+01 LLI-131 <6.22E-01 0.00E+00 6.22E-01 I-131 <6.60E+00 0.00E+00 6.60E+00 Cs-134 <5.75E+00 0.00E+00 5.75E+00 Cs-137 <6.57E+00 0.00E+00 6.57E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 111 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: MILK Concentration (Activity): pCi/l 5 Sample Point 5 [ CONTROL - WNW @ 12 miles ]

Sample ID: 292970 Sample Dates: 6/2/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD BaLa-140 <5.49E+00 0.00E+00 5.49E+00 Be-7 <4.83E+01 0.00E+00 4.83E+01 K-40 1.48E+03 8.27E+01 5.03E+01 Sample ID: 295904 Sample Dates: 7/1/2014 - 7/1/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <3.03E+00 0.00E+00 3.03E+00 K-40 2.28E+01 4.07E+00 4.62E+00 LLI-131 <5.62E-01 0.00E+00 5.62E-01 I-131 <5.86E+00 0.00E+00 5.86E+00 Cs-134 <4.94E+00 0.00E+00 4.94E+00 Cs-137 <6.16E+00 0.00E+00 6.16E+00 BaLa-140 <5.88E+00 0.00E+00 5.88E+00 Be-7 <4.57E+01 0.00E+00 4.57E+01 K-40 1.57E+03 8.16E+01 5.58E+01 Sample ID: 297386 Sample Dates: 8/4/2014 - 8/4/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.17E-01 0.00E+00 6.17E-01 I-131 <8.92E+00 0.00E+00 8.92E+00 Cs-134 <7.92E+00 0.00E+00 7.92E+00 Cs-137 <8.55E+00 0.00E+00 8.55E+00 BaLa-140 <8.10E+00 0.00E+00 8.10E+00 Be-7 <6.83E+01 0.00E+00 6.83E+01 K-40 1.41E+03 2.54E+02 1.32E+02 Sample ID: 351218 Sample Dates: 9/2/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.40E-01 0.00E+00 6.40E-01 I-131 <9.48E+00 0.00E+00 9.48E+00 Cs-134 <1.03E+01 0.00E+00 1.03E+01 Cs-137 <1.18E+01 0.00E+00 1.18E+01 BaLa-140 <2.95E+00 0.00E+00 2.95E+00 Be-7 <7.12E+01 0.00E+00 7.12E+01 K-40 1.53E+03 2.71E+02 1.59E+02 Sample ID: 351593 Sample Dates: 10/6/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.24E-01 0.00E+00 6.24E-01 I-131 <8.14E+00 0.00E+00 8.14E+00 Cs-134 <9.89E+00 0.00E+00 9.89E+00 Cs-137 <6.72E+00 0.00E+00 6.72E+00 BaLa-140 <7.21E+00 0.00E+00 7.21E+00 Be-7 <5.47E+01 0.00E+00 5.47E+01 K-40 1.54E+03 2.16E+02 6.76E+01 Sample ID: 355119 Sample Dates: 11/3/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.28E-01 0.00E+00 6.28E-01 I-131 <6.91E+00 0.00E+00 6.91E+00 Cs-134 <6.13E+00 0.00E+00 6.13E+00 Cs-137 <6.33E+00 0.00E+00 6.33E+00 BaLa-140 <6.28E+00 0.00E+00 6.28E+00 Be-7 <4.98E+01 0.00E+00 4.98E+01 K-40 1.54E+03 2.07E+02 8.13E+01 Sample ID: 357960 Sample Dates: 12/1/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.82E-01 0.00E+00 5.82E-01 I-131 <9.88E+00 0.00E+00 9.88E+00 Cs-134 <1.07E+01 0.00E+00 1.07E+01 Cs-137 <7.14E+00 0.00E+00 7.14E+00 BaLa-140 <1.02E+01 0.00E+00 1.02E+01 Be-7 <7.95E+01 0.00E+00 7.95E+01 K-40 1.49E+03 2.56E+02 8.64E+01 Media Type: SEDIMENT_BOTTOM Concentration (Activity): pCi/kg dry 52 Sample Point 52 [ INDICATOR - S @ 3.8 miles ]

Sample ID: 282791 Sample Dates: 1/20/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <1.02E+01 0.00E+00 1.02E+01 Co-58 2.01E+01 5.80E+00 1.08E+01 Fe-59 <2.40E+01 0.00E+00 2.40E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 112 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: SEDIMENT_BOTTOM Concentration (Activity): pCi/kg dry 52 Sample Point 52 [ INDICATOR - S @ 3.8 miles ]

Sample ID: 282791 Sample Dates: 1/20/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Co-60 7.68E+01 8.93E+00 1.06E+01 Zn-65 <2.39E+01 0.00E+00 2.39E+01 Zr-95 <2.04E+01 0.00E+00 2.04E+01 Nb-95 <1.17E+01 0.00E+00 1.17E+01 I-131 <1.66E+01 0.00E+00 1.66E+01 Cs-134 <9.22E+00 0.00E+00 9.22E+00 Cs-137 3.39E+01 5.45E+00 1.04E+01 Be-7 1.08E+02 4.06E+01 8.17E+01 K-40 6.68E+03 1.63E+02 8.25E+01 Co-57 <8.46E+00 0.00E+00 8.46E+00 Mo-99 <4.19E+02 0.00E+00 4.19E+02 Ag-110M <9.53E+00 0.00E+00 9.53E+00 Sb-122 <7.99E+01 0.00E+00 7.99E+01 Sb-125 <2.90E+01 0.00E+00 2.90E+01 Sample ID: 354865 Sample Dates: 9/2/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <8.27E+01 0.00E+00 8.27E+01 Co-58 <8.26E+01 0.00E+00 8.26E+01 Fe-59 <1.84E+02 0.00E+00 1.84E+02 Co-60 7.86E+02 1.53E+02 7.14E+01 Zn-65 <1.59E+02 0.00E+00 1.59E+02 Zr-95 <1.30E+02 0.00E+00 1.30E+02 Nb-95 <8.32E+01 0.00E+00 8.32E+01 I-131 <1.01E+02 0.00E+00 1.01E+02 Cs-134 <1.02E+02 0.00E+00 1.02E+02 Cs-137 2.18E+02 9.34E+01 1.28E+02 Be-7 <5.54E+02 0.00E+00 5.54E+02 K-40 1.13E+04 1.97E+03 1.15E+03 Co-57 <4.86E+01 0.00E+00 4.86E+01 Mo-99 <3.42E+03 0.00E+00 3.42E+03 Ag-110M <6.64E+01 0.00E+00 6.64E+01 Sb-122 <3.66E+02 0.00E+00 3.66E+02 Sb-125 <2.07E+02 0.00E+00 2.07E+02 Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg dry 26 Sample Point 26 [ INDICATOR - S @ 4.6 miles ]

Sample ID: 282789 Sample Dates: 1/20/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <1.98E+01 0.00E+00 1.98E+01 Co-58 <1.61E+01 0.00E+00 1.61E+01 Fe-59 <4.93E+01 0.00E+00 4.93E+01 Co-60 <2.19E+01 0.00E+00 2.19E+01 Zn-65 <5.44E+01 0.00E+00 5.44E+01 Zr-95 <3.38E+01 0.00E+00 3.38E+01 Nb-95 <2.05E+01 0.00E+00 2.05E+01 I-131 <2.93E+01 0.00E+00 2.93E+01 Cs-134 <1.78E+01 0.00E+00 1.78E+01 Cs-137 <1.92E+01 0.00E+00 1.92E+01 Be-7 2.57E+02 7.59E+01 1.37E+02 K-40 9.80E+03 3.70E+02 1.95E+02 Co-57 <1.59E+01 0.00E+00 1.59E+01 Mo-99 <8.23E+02 0.00E+00 8.23E+02 Ag-110M <1.92E+01 0.00E+00 1.92E+01 Sb-122 <1.32E+02 0.00E+00 1.32E+02 Sb-125 <4.59E+01 0.00E+00 4.59E+01 Sample ID: 354867 Sample Dates: 9/2/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <2.21E+01 0.00E+00 2.21E+01 Co-58 <2.17E+01 0.00E+00 2.17E+01 Fe-59 <7.10E+01 0.00E+00 7.10E+01 Co-60 <3.15E+01 0.00E+00 3.15E+01 Zn-65 <5.07E+01 0.00E+00 5.07E+01 Zr-95 <4.14E+01 0.00E+00 4.14E+01 Nb-95 <2.90E+01 0.00E+00 2.90E+01 I-131 <5.49E+01 0.00E+00 5.49E+01 Cs-134 <3.20E+01 0.00E+00 3.20E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 113 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg dry 26 Sample Point 26 [ INDICATOR - S @ 4.6 miles ]

Sample ID: 354867 Sample Dates: 9/2/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Cs-137 <2.09E+01 0.00E+00 2.09E+01 Be-7 2.61E+02 1.72E+02 2.61E+02 K-40 1.07E+04 1.19E+03 2.98E+02 Co-57 <1.91E+01 0.00E+00 1.91E+01 Mo-99 <5.74E+03 0.00E+00 5.74E+03 Ag-110M <2.26E+01 0.00E+00 2.26E+01 Sb-122 <8.71E+02 0.00E+00 8.71E+02 Sb-125 <5.76E+01 0.00E+00 5.76E+01 Sample Point 41 [ INDICATOR - S @ 3.8 miles ]

Sample ID: 282790 Sample Dates: 1/20/2014 - 1/20/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <1.70E+01 0.00E+00 1.70E+01 Co-58 <1.90E+01 0.00E+00 1.90E+01 Fe-59 <4.36E+01 0.00E+00 4.36E+01 Co-60 <1.79E+01 0.00E+00 1.79E+01 Zn-65 <3.71E+01 0.00E+00 3.71E+01 Zr-95 <3.26E+01 0.00E+00 3.26E+01 Nb-95 <1.47E+01 0.00E+00 1.47E+01 I-131 <2.40E+01 0.00E+00 2.40E+01 Cs-134 <1.42E+01 0.00E+00 1.42E+01 Cs-137 <1.42E+01 0.00E+00 1.42E+01 Be-7 <1.33E+02 0.00E+00 1.33E+02 K-40 5.26E+03 2.54E+02 1.42E+02 Co-57 <1.19E+01 0.00E+00 1.19E+01 Mo-99 <7.47E+02 0.00E+00 7.47E+02 Ag-110M <1.53E+01 0.00E+00 1.53E+01 Sb-122 <1.12E+02 0.00E+00 1.12E+02 Sb-125 <2.99E+01 0.00E+00 2.99E+01 Sample ID: 354866 Sample Dates: 9/2/2014 - 9/2/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <3.26E+01 0.00E+00 3.26E+01 Co-58 <3.64E+01 0.00E+00 3.64E+01 Fe-59 <1.10E+02 0.00E+00 1.10E+02 Co-60 <4.86E+01 0.00E+00 4.86E+01 Zn-65 <8.43E+01 0.00E+00 8.43E+01 Zr-95 <6.55E+01 0.00E+00 6.55E+01 Nb-95 <4.19E+01 0.00E+00 4.19E+01 I-131 <3.95E+01 0.00E+00 3.95E+01 Cs-134 <4.10E+01 0.00E+00 4.10E+01 Cs-137 <3.35E+01 0.00E+00 3.35E+01 Be-7 <2.98E+02 0.00E+00 2.98E+02 K-40 1.08E+04 1.48E+03 6.03E+02 Co-57 <2.66E+01 0.00E+00 2.66E+01 Mo-99 <7.11E+02 0.00E+00 7.11E+02 Ag-110M <3.13E+01 0.00E+00 3.13E+01 Sb-122 <1.66E+02 0.00E+00 1.66E+02 Sb-125 <7.23E+01 0.00E+00 7.23E+01 Media Type: SURFACE WATER Concentration (Activity): pCi/l 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 281703 Sample Dates: 12/30/2013 - 1/13/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.63E+00 0.00E+00 2.63E+00 K-40 3.98E+01 2.81E+00 3.71E+00 LLI-131 <6.53E-01 0.00E+00 6.53E-01 Sample ID: 283028 Sample Dates: 1/13/2014 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.32E+00 0.00E+00 2.32E+00 K-40 3.64E+01 2.84E+00 3.24E+00 LLI-131 <5.78E-01 0.00E+00 5.78E-01 Sample ID: 283032 Sample Dates: 12/30/2013 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.80E+00 4.72E-01 1.24E+00 Mn-54 <3.90E+00 0.00E+00 3.90E+00 Co-58 <3.64E+00 0.00E+00 3.64E+00 Fe-59 <8.83E+00 0.00E+00 8.83E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 114 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 283032 Sample Dates: 12/30/2013 - 1/27/2014 Nuclide Activity Sigma Error 1 LLD Co-60 <4.74E+00 0.00E+00 4.74E+00 Zn-65 <9.95E+00 0.00E+00 9.95E+00 Zr-95 <7.04E+00 0.00E+00 7.04E+00 Nb-95 <6.03E+00 0.00E+00 6.03E+00 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <4.07E+00 0.00E+00 4.07E+00 Cs-137 <4.02E+00 0.00E+00 4.02E+00 BaLa-140 <8.43E+00 0.00E+00 8.43E+00 Be-7 <4.04E+01 0.00E+00 4.04E+01 K-40 <8.00E+01 0.00E+00 8.00E+01 H3SW 8.79E+03 1.31E+02 1.53E+02 Sample ID: 284715 Sample Dates: 1/27/2014 - 2/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.15E+00 0.00E+00 2.15E+00 K-40 1.45E+01 1.76E+00 2.64E+00 LLI-131 <4.67E-01 0.00E+00 4.67E-01 Sample ID: 286053 Sample Dates: 2/10/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.08E+00 0.00E+00 2.08E+00 K-40 1.53E+01 2.02E+00 2.49E+00 LLI-131 <5.25E-01 0.00E+00 5.25E-01 Sample ID: 286057 Sample Dates: 1/27/2014 - 2/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 5.22E+00 4.62E-01 1.17E+00 Mn-54 <3.59E+00 0.00E+00 3.59E+00 Co-58 <4.63E+00 0.00E+00 4.63E+00 Fe-59 <9.73E+00 0.00E+00 9.73E+00 Co-60 <4.73E+00 0.00E+00 4.73E+00 Zn-65 <7.35E+00 0.00E+00 7.35E+00 Zr-95 <7.86E+00 0.00E+00 7.86E+00 Nb-95 <4.63E+00 0.00E+00 4.63E+00 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <3.70E+00 0.00E+00 3.70E+00 Cs-137 <3.28E+00 0.00E+00 3.28E+00 BaLa-140 <1.13E+01 0.00E+00 1.13E+01 Be-7 <3.86E+01 0.00E+00 3.86E+01 K-40 1.18E+02 1.85E+01 3.15E+01 H3SW 8.07E+03 1.25E+02 1.52E+02 Sample ID: 287392 Sample Dates: 2/24/2014 - 3/10/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <1.64E+00 0.00E+00 1.64E+00 K-40 1.90E+01 1.61E+00 1.86E+00 LLI-131 <6.38E-01 0.00E+00 6.38E-01 Sample ID: 289229 Sample Dates: 3/10/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.30E+00 0.00E+00 2.30E+00 K-40 1.49E+01 1.86E+00 3.10E+00 LLI-131 <5.42E-01 0.00E+00 5.42E-01 Sample ID: 289233 Sample Dates: 2/24/2014 - 3/24/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.78E+00 4.47E-01 1.14E+00 Mn-54 <2.06E+00 0.00E+00 2.06E+00 Co-58 <2.35E+00 0.00E+00 2.35E+00 Fe-59 <5.69E+00 0.00E+00 5.69E+00 Co-60 <2.30E+00 0.00E+00 2.30E+00 Zn-65 <5.58E+00 0.00E+00 5.58E+00 Zr-95 <4.95E+00 0.00E+00 4.95E+00 Nb-95 <3.58E+00 0.00E+00 3.58E+00 I-131 <1.07E+01 0.00E+00 1.07E+01 Cs-134 <2.31E+00 0.00E+00 2.31E+00 Cs-137 <2.38E+00 0.00E+00 2.38E+00 BaLa-140 <6.86E+00 0.00E+00 6.86E+00 Be-7 <2.50E+01 0.00E+00 2.50E+01 K-40 1.64E+02 1.82E+01 2.35E+01 H3SW 7.14E+03 1.31E+02 1.87E+02 Sample ID: 290003 Sample Dates: 3/24/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.54E+00 0.00E+00 2.54E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 115 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 290003 Sample Dates: 3/24/2014 - 4/7/2014 Nuclide Activity Sigma Error 1 LLD K-40 3.65E+01 2.76E+00 2.93E+00 LLI-131 <5.74E-01 0.00E+00 5.74E-01 Sample ID: 292888 Sample Dates: 4/7/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.53E+00 0.00E+00 2.53E+00 K-40 1.14E+01 2.56E+00 3.05E+00 LLI-131 <5.87E-01 0.00E+00 5.87E-01 Sample ID: 292892 Sample Dates: 3/24/2014 - 4/21/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.18E+00 5.00E-01 1.44E+00 Mn-54 <3.17E+00 0.00E+00 3.17E+00 Co-58 <4.40E+00 0.00E+00 4.40E+00 Fe-59 <8.25E+00 0.00E+00 8.25E+00 Co-60 <3.68E+00 0.00E+00 3.68E+00 Zn-65 <6.63E+00 0.00E+00 6.63E+00 Zr-95 <6.44E+00 0.00E+00 6.44E+00 Nb-95 <4.24E+00 0.00E+00 4.24E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <3.38E+00 0.00E+00 3.38E+00 Cs-137 <3.82E+00 0.00E+00 3.82E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <3.44E+01 0.00E+00 3.44E+01 K-40 <2.16E+01 0.00E+00 2.16E+01 H3SW 6.05E+03 1.24E+02 1.90E+02 Sample ID: 294856 Sample Dates: 4/21/2014 - 5/5/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.65E+00 0.00E+00 2.65E+00 K-40 3.81E+01 3.35E+00 3.51E+00 LLI-131 <6.42E-01 0.00E+00 6.42E-01 Sample ID: 295635 Sample Dates: 5/5/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.73E+00 0.00E+00 2.73E+00 K-40 3.68E+01 3.07E+00 3.62E+00 LLI-131 <6.07E-01 0.00E+00 6.07E-01 Sample ID: 295639 Sample Dates: 4/21/2014 - 5/19/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.61E+00 4.38E-01 1.21E+00 Mn-54 <3.11E+00 0.00E+00 3.11E+00 Co-58 <3.68E+00 0.00E+00 3.68E+00 Fe-59 <8.42E+00 0.00E+00 8.42E+00 Co-60 <4.01E+00 0.00E+00 4.01E+00 Zn-65 <7.14E+00 0.00E+00 7.14E+00 Zr-95 <6.76E+00 0.00E+00 6.76E+00 Nb-95 <5.19E+00 0.00E+00 5.19E+00 I-131 <1.28E+01 0.00E+00 1.28E+01 Cs-134 <3.08E+00 0.00E+00 3.08E+00 Cs-137 <4.01E+00 0.00E+00 4.01E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <3.39E+01 0.00E+00 3.39E+01 K-40 7.84E+01 1.80E+01 3.60E+01 H3SW 5.70E+03 1.22E+02 1.93E+02 Sample ID: 296318 Sample Dates: 5/19/2014 - 6/2/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.00E+00 0.00E+00 2.00E+00 K-40 8.23E+00 2.29E+00 3.43E+00 LLI-131 <4.69E-01 0.00E+00 4.69E-01 Sample ID: 297117 Sample Dates: 6/2/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.50E+00 0.00E+00 2.50E+00 K-40 2.13E+01 2.76E+00 2.94E+00 LLI-131 <6.06E-01 0.00E+00 6.06E-01 Sample ID: 297121 Sample Dates: 5/19/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.88E+00 4.54E-01 1.25E+00 Mn-54 <3.71E+00 0.00E+00 3.71E+00 Co-58 <4.03E+00 0.00E+00 4.03E+00 Fe-59 <8.04E+00 0.00E+00 8.04E+00 Co-60 <3.76E+00 0.00E+00 3.76E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 116 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 297121 Sample Dates: 5/19/2014 - 6/16/2014 Nuclide Activity Sigma Error 1 LLD Zn-65 <6.70E+00 0.00E+00 6.70E+00 Zr-95 <5.75E+00 0.00E+00 5.75E+00 Nb-95 <4.62E+00 0.00E+00 4.62E+00 I-131 <1.36E+01 0.00E+00 1.36E+01 Cs-134 <3.02E+00 0.00E+00 3.02E+00 Cs-137 <3.82E+00 0.00E+00 3.82E+00 BaLa-140 <8.22E+00 0.00E+00 8.22E+00 Be-7 <3.30E+01 0.00E+00 3.30E+01 K-40 1.11E+02 2.23E+01 3.38E+01 H3SW 4.46E+03 1.14E+02 2.04E+02 Sample ID: 297733 Sample Dates: 6/16/2014 - 6/30/2014 Nuclide Activity Sigma Error 1 LLD Be-7 <2.54E+00 0.00E+00 2.54E+00 K-40 4.58E+01 2.71E+00 3.26E+00 LLI-131 <5.48E-01 0.00E+00 5.48E-01 Sample ID: 350091 Sample Dates: 6/30/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.94E-01 0.00E+00 5.94E-01 Sample ID: 350095 Sample Dates: 6/16/2014 - 7/14/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.43E+00 9.64E-01 1.35E+00 Mn-54 <1.75E+00 0.00E+00 1.75E+00 Co-58 <1.85E+00 0.00E+00 1.85E+00 Fe-59 <4.42E+00 0.00E+00 4.42E+00 Co-60 <1.99E+00 0.00E+00 1.99E+00 Zn-65 <3.51E+00 0.00E+00 3.51E+00 Zr-95 <3.64E+00 0.00E+00 3.64E+00 Nb-95 <2.61E+00 0.00E+00 2.61E+00 I-131 <1.15E+01 0.00E+00 1.15E+01 Cs-134 <1.67E+00 0.00E+00 1.67E+00 Cs-137 <2.10E+00 0.00E+00 2.10E+00 BaLa-140 <6.03E+00 0.00E+00 6.03E+00 Be-7 <1.99E+01 0.00E+00 1.99E+01 K-40 9.38E+01 2.13E+01 2.42E+01 H3SW 4.41E+03 2.12E+02 1.87E+02 Sample ID: 350705 Sample Dates: 7/14/2014 - 7/28/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.53E-01 0.00E+00 5.53E-01 Sample ID: 351576 Sample Dates: 7/28/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.08E-01 0.00E+00 6.08E-01 Sample ID: 351578 Sample Dates: 7/14/2014 - 8/11/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.35E+00 8.91E-01 1.31E+00 Mn-54 <2.66E+00 0.00E+00 2.66E+00 Co-58 <3.31E+00 0.00E+00 3.31E+00 Fe-59 <6.07E+00 0.00E+00 6.07E+00 Co-60 <2.90E+00 0.00E+00 2.90E+00 Zn-65 <6.29E+00 0.00E+00 6.29E+00 Zr-95 <5.86E+00 0.00E+00 5.86E+00 Nb-95 <3.45E+00 0.00E+00 3.45E+00 I-131 <1.05E+01 0.00E+00 1.05E+01 Cs-134 <2.14E+00 0.00E+00 2.14E+00 Cs-137 <3.24E+00 0.00E+00 3.24E+00 BaLa-140 <7.45E+00 0.00E+00 7.45E+00 Be-7 <3.30E+01 0.00E+00 3.30E+01 K-40 2.90E+01 2.25E+01 3.24E+01 H3SW 3.99E+03 2.10E+02 1.98E+02 Sample ID: 354039 Sample Dates: 8/11/2014 - 8/25/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.06E-01 0.00E+00 6.06E-01 Sample ID: 354021 Sample Dates: 8/25/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 354797 Sample Dates: 8/11/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.40E+00 9.76E-01 1.48E+00 Mn-54 <3.74E+00 0.00E+00 3.74E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 117 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 354797 Sample Dates: 8/11/2014 - 9/8/2014 Nuclide Activity Sigma Error 1 LLD Co-58 <3.34E+00 0.00E+00 3.34E+00 Fe-59 <8.32E+00 0.00E+00 8.32E+00 Co-60 <3.62E+00 0.00E+00 3.62E+00 Zn-65 <5.95E+00 0.00E+00 5.95E+00 Zr-95 <6.36E+00 0.00E+00 6.36E+00 Nb-95 <4.51E+00 0.00E+00 4.51E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <4.24E+00 0.00E+00 4.24E+00 Cs-137 <3.68E+00 0.00E+00 3.68E+00 BaLa-140 <7.50E+00 0.00E+00 7.50E+00 Be-7 <2.69E+01 0.00E+00 2.69E+01 K-40 8.65E+01 3.62E+01 4.70E+01 H3SW 3.87E+03 2.02E+02 1.86E+02 Sample ID: 355681 Sample Dates: 9/8/2014 - 9/22/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.73E-01 0.00E+00 5.73E-01 Sample ID: 357084 Sample Dates: 9/22/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.48E-01 0.00E+00 6.48E-01 Sample ID: 357088 Sample Dates: 9/8/2014 - 10/6/2014 Nuclide Activity Sigma Error 1 LLD Beta 5.50E+00 9.20E-01 1.18E+00 Mn-54 <3.37E+00 0.00E+00 3.37E+00 Co-58 <3.01E+00 0.00E+00 3.01E+00 Fe-59 <7.39E+00 0.00E+00 7.39E+00 Co-60 <3.51E+00 0.00E+00 3.51E+00 Zn-65 <7.20E+00 0.00E+00 7.20E+00 Zr-95 <7.19E+00 0.00E+00 7.19E+00 Nb-95 <4.25E+00 0.00E+00 4.25E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <3.52E+00 0.00E+00 3.52E+00 Cs-137 <2.88E+00 0.00E+00 2.88E+00 BaLa-140 <7.68E+00 0.00E+00 7.68E+00 Be-7 <2.99E+01 0.00E+00 2.99E+01 K-40 1.07E+02 3.62E+01 4.39E+01 H3SW 3.68E+03 2.01E+02 1.92E+02 Sample ID: 358632 Sample Dates: 10/6/2014 - 10/20/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.00E-01 0.00E+00 6.00E-01 Sample ID: 359997 Sample Dates: 10/20/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.14E-01 0.00E+00 6.14E-01 Sample ID: 359998 Sample Dates: 10/6/2014 - 11/3/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.04E+00 9.23E-01 1.31E+00 Mn-54 <2.85E+00 0.00E+00 2.85E+00 Co-58 <4.05E+00 0.00E+00 4.05E+00 Fe-59 <7.16E+00 0.00E+00 7.16E+00 Co-60 <3.08E+00 0.00E+00 3.08E+00 Zn-65 <7.82E+00 0.00E+00 7.82E+00 Zr-95 <5.97E+00 0.00E+00 5.97E+00 Nb-95 <4.68E+00 0.00E+00 4.68E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <3.85E+00 0.00E+00 3.85E+00 Cs-137 <3.26E+00 0.00E+00 3.26E+00 BaLa-140 <7.66E+00 0.00E+00 7.66E+00 Be-7 <2.80E+01 0.00E+00 2.80E+01 K-40 7.00E+01 3.62E+01 5.22E+01 H3SW 4.64E+03 2.16E+02 1.85E+02 Sample ID: 361550 Sample Dates: 11/3/2014 - 11/17/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <5.58E-01 0.00E+00 5.58E-01 Sample ID: 362750 Sample Dates: 11/17/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.50E-01 0.00E+00 6.50E-01 Sample ID: 362751 Sample Dates: 11/3/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Beta 4.68E+00 9.04E-01 1.22E+00 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 118 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l 26 Sample Point 26 [ INDICATOR - S @ 4.7 miles ]

Sample ID: 362751 Sample Dates: 11/3/2014 - 12/1/2014 Nuclide Activity Sigma Error 1 LLD Mn-54 <1.68E+00 0.00E+00 1.68E+00 Co-58 <1.84E+00 0.00E+00 1.84E+00 Fe-59 <3.97E+00 0.00E+00 3.97E+00 Co-60 <1.27E+00 0.00E+00 1.27E+00 Zn-65 <3.37E+00 0.00E+00 3.37E+00 Zr-95 <3.61E+00 0.00E+00 3.61E+00 Nb-95 <2.48E+00 0.00E+00 2.48E+00 I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <1.74E+00 0.00E+00 1.74E+00 Cs-137 <1.87E+00 0.00E+00 1.87E+00 BaLa-140 <5.91E+00 0.00E+00 5.91E+00 Be-7 <1.57E+01 0.00E+00 1.57E+01 K-40 4.82E+01 1.96E+01 2.74E+01 H3SW 4.53E+03 2.13E+02 1.83E+02 Sample ID: 363946 Sample Dates: 12/1/2014 - 12/15/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <3.97E-01 0.00E+00 3.97E-01 Sample ID: 364758 Sample Dates: 12/15/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD LLI-131 <6.12E-01 0.00E+00 6.12E-01 Sample ID: 364759 Sample Dates: 12/1/2014 - 12/29/2014 Nuclide Activity Sigma Error 1 LLD Beta 3.65E+00 9.35E-01 1.39E+00 Mn-54 <2.07E+00 0.00E+00 2.07E+00 Co-58 <2.13E+00 0.00E+00 2.13E+00 Fe-59 <4.47E+00 0.00E+00 4.47E+00 Co-60 <2.17E+00 0.00E+00 2.17E+00 Zn-65 <3.91E+00 0.00E+00 3.91E+00 Zr-95 <3.71E+00 0.00E+00 3.71E+00 Nb-95 <2.82E+00 0.00E+00 2.82E+00 I-131 <1.08E+01 0.00E+00 1.08E+01 Cs-134 <2.19E+00 0.00E+00 2.19E+00 Cs-137 <1.53E+00 0.00E+00 1.53E+00 BaLa-140 <7.61E+00 0.00E+00 7.61E+00 Be-7 <1.94E+01 0.00E+00 1.94E+01 K-40 2.40E+01 2.47E+00 1.02E+01 H3SW 5.39E+03 2.38E+02 2.01E+02 Media Type: TLD Concentration (Activity): mR/Standard Quarter 1 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] TLD RING TLD_INNER Sample ID: 289694 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 17.69 Sample ID: 298028 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 14.60 Sample ID: 365545 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.72 Sample ID: 362458 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 18.15 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] TLD RING TLD_INNER Sample ID: 289698 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.98 Sample ID: 298032 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 13.04 Sample ID: 365546 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 14.58 Sample ID: 362466 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 15.21 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 119 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 3 Sample Point 3 [ INDICATOR - ENE @ 1.9 miles ] TLD RING TLD_INNER Sample ID: 289606 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.83 Sample ID: 297939 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.50 Sample ID: 365547 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.84 Sample ID: 362477 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.19 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] TLD RING TLD_SPEC Sample ID: 289607 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.10 Sample ID: 297940 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.26 Sample ID: 365548 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.52 Sample ID: 362486 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 13.67 Sample Point 5 [ CONTROL - WNW @ 12 miles ] TLD RING TLD_CTRL Sample ID: 289608 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 20.46 Sample ID: 297941 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 16.60 Sample ID: 365549 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 16.78 Sample ID: 362489 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 18.92 Sample Point 6 [ INDICATOR - ENE @ 0.8 miles ] TLD RING TLD_INNER Sample ID: 289609 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 17.98 Sample ID: 297942 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 13.32 Sample ID: 365550 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.11 Sample ID: 362493 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.40 Sample Point 7 [ INDICATOR - E @ 0.7 miles ] TLD RING TLD_INNER Sample ID: 289610 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.50 Sample ID: 297943 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.80 Sample ID: 365551 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 14.28 Sample ID: 362496 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.84 Sample Point 8 [ INDICATOR - ESE @ 0.6 miles ] TLD RING TLD_INNER Sample ID: 289611 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.78 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 120 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 8 Sample Point 8 [ INDICATOR - ESE @ 0.6 miles ] TLD RING TLD_INNER Sample ID: 297944 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 13.50 Sample ID: 365552 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 14.78 Sample ID: 362497 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 17.65 Sample Point 9 [ INDICATOR - SE @ 2.2 miles ] TLD RING TLD_INNER Sample ID: 289640 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.61 Sample ID: 297973 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 10.52 Sample ID: 365553 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.37 Sample ID: 362498 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 12.79 Sample Point 10 [ INDICATOR - SSE @ 2.2 miles ] TLD RING TLD_INNER Sample ID: 289641 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 14.19 Sample ID: 297974 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 10.55 Sample ID: 365554 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 10.44 Sample ID: 362459 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.69 Sample Point 11 [ INDICATOR - S @ 0.6 miles ] TLD RING TLD_INNER Sample ID: 289642 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 14.79 Sample ID: 297975 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 14.45 Sample ID: 365555 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 10.86 Sample ID: 362460 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 13.83 Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ] TLD RING TLD_INNER Sample ID: 289643 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 14.29 Sample ID: 297976 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 10.23 Sample ID: 365556 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.05 Sample ID: 362461 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 13.68 Sample Point 13 [ INDICATOR - WSW @ 0.7 miles ] TLD RING TLD_INNER Sample ID: 289644 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.55 Sample ID: 297977 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 14.23 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 121 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 13 Sample Point 13 [ INDICATOR - WSW @ 0.7 miles ] TLD RING TLD_INNER Sample ID: 365557 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.76 Sample ID: 362462 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 15.10 Sample Point 14 [ INDICATOR - W @ 1.5 miles ] TLD RING TLD_INNER Sample ID: 289645 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 19.46 Sample ID: 297978 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 13.62 Sample ID: 365558 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 14.76 Sample ID: 362463 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 18.36 Sample Point 15 [ INDICATOR - W @ 2 miles ] TLD RING TLD_INNER Sample ID: 289646 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.13 Sample ID: 297979 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 10.71 Sample ID: 365559 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 10.14 Sample ID: 362464 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 13.76 Sample Point 19 [ INDICATOR - NNE @ 5 miles ] TLD RING TLD_OUTER Sample ID: 289647 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 14.17 Sample ID: 297980 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.55 Sample ID: 365560 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.97 Sample ID: 362465 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 14.26 Sample Point 20 [ INDICATOR - NE @ 4.5 miles ] TLD RING TLD_OUTER Sample ID: 289648 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 18.00 Sample ID: 297981 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 16.09 Sample ID: 365561 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 15.46 Sample ID: 362467 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 17.78 Sample Point 21 [ INDICATOR - ENE @ 4.8 miles ] TLD RING TLD_OUTER Sample ID: 289649 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.91 Sample ID: 297982 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.94 Sample ID: 365562 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 12.73 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 122 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 21 Sample Point 21 [ INDICATOR - ENE @ 4.8 miles ] TLD RING TLD_OUTER Sample ID: 362468 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.02 Sample Point 22 [ INDICATOR - E @ 4.3 miles ] TLD RING TLD_OUTER Sample ID: 289650 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 14.64 Sample ID: 297983 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.41 Sample ID: 365563 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 10.29 Sample ID: 362469 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 13.35 Sample Point 23 [ INDICATOR - ESE @ 4.8 miles ] TLD RING TLD_OUTER Sample ID: 289651 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 17.88 Sample ID: 297984 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.70 Sample ID: 365564 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 15.37 Sample ID: 362470 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 14.30 Sample Point 24 [ INDICATOR - SE @ 4 miles ] TLD RING TLD_OUTER Sample ID: 289652 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 17.87 Sample ID: 297985 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.40 Sample ID: 365565 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.99 Sample ID: 362471 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 14.66 Sample Point 25 [ INDICATOR - SSE @ 4.7 miles ] TLD RING TLD_OUTER Sample ID: 289653 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 20.96 Sample ID: 297986 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.12 Sample ID: 365566 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 12.83 Sample ID: 362472 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 13.80 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] TLD RING TLD_OUTER Sample ID: 289654 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.60 Sample ID: 297987 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 13.83 Sample ID: 365567 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.65 Sample ID: 362473 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 14.21 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 123 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 27 Sample Point 27 [ INDICATOR - SSW @ 4.8 miles ] TLD RING TLD_OUTER Sample ID: 298029 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 9.12 Sample ID: 366978 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.92 Sample ID: 362474 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 10.88 Sample Point 28 [ INDICATOR - SW @ 4.8 miles ] TLD RING TLD_OUTER Sample ID: 289696 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.49 Sample ID: 298030 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.38 Sample ID: 365568 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.89 Sample ID: 362475 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 14.40 Sample Point 29 [ INDICATOR - WSW @ 5.7 miles ] TLD RING TLD_OUTER Sample ID: 289612 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 18.91 Sample ID: 297945 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 15.34 Sample ID: 365569 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.69 Sample ID: 362476 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.11 Sample Point 30 [ INDICATOR - W @ 5.6 miles ] TLD RING TLD_OUTER Sample ID: 289614 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 12.39 Sample ID: 297947 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.44 Sample ID: 365570 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.86 Sample ID: 362478 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 12.62 Sample Point 31 [ INDICATOR - WNW @ 4.7 miles ] TLD RING TLD_OUTER Sample ID: 289613 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 12.85 Sample ID: 297946 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 10.48 Sample ID: 365571 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.23 Sample ID: 362479 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 12.30 Sample Point 32 [ INDICATOR - NNW @ 6.4 miles ] TLD RING TLD_SPEC Sample ID: 289615 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.01 Sample ID: 297948 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 15.51 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 124 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 32 Sample Point 32 [ INDICATOR - NNW @ 6.4 miles ] TLD RING TLD_SPEC Sample ID: 365572 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 14.99 Sample ID: 362480 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 15.47 Sample Point 33 [ INDICATOR - NNW @ 4.5 miles ] TLD RING TLD_OUTER Sample ID: 289616 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 13.76 Sample ID: 297949 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.54 Sample ID: 365573 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 10.95 Sample ID: 362481 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 13.37 Sample Point 34 [ INDICATOR - NE @ 8.7 miles ] TLD RING TLD_SPEC Sample ID: 289617 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 20.67 Sample ID: 297950 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 17.46 Sample ID: 365574 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 15.39 Sample Point 35 [ INDICATOR - E @ 6.9 miles ] TLD RING TLD_SPEC Sample ID: 289618 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 18.49 Sample ID: 365575 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.56 Sample ID: 362483 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.80 Sample Point 36 [ INDICATOR - E @ 10.9 miles ] TLD RING TLD_SPEC Sample ID: 289619 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.57 Sample ID: 297952 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 13.28 Sample ID: 365576 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 12.44 Sample ID: 362484 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 12.97 Sample Point 37 [ INDICATOR - ESE @ 9.2 miles ] TLD RING TLD_SPEC Sample ID: 289620 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 17.66 Sample ID: 297953 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 15.09 Sample ID: 365577 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.09 Sample ID: 362485 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.82 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 125 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 48 Sample Point 48 [ INDICATOR - N @ 4.5 miles ] TLD RING TLD_OUTER Sample ID: 289621 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.65 Sample ID: 297954 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 14.60 Sample ID: 365578 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 15.07 Sample ID: 362487 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 16.45 Sample Point 49 [ INDICATOR - NE @ 2.5 miles ] TLD RING TLD_INNER Sample ID: 289622 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 22.17 Sample ID: 297955 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 17.26 Sample ID: 365579 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 16.43 Sample ID: 362488 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 18.72 Sample Point 50 [ INDICATOR - ESE @ 2.6 miles ] TLD RING TLD_INNER Sample ID: 289623 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.99 Sample ID: 297956 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.70 Sample ID: 365581 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 11.81 Sample ID: 362490 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 14.30 Sample Point 53 [ INDICATOR - NW @ 5.8 miles ] TLD RING TLD_OUTER Sample ID: 289624 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 14.22 Sample ID: 297957 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 11.77 Sample ID: 365582 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 13.07 Sample ID: 362491 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 15.51 Sample Point 56 [ INDICATOR - WSW @ 3 miles ] TLD RING TLD_INNER Sample ID: 289625 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 16.02 Sample ID: 297958 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.61 Sample ID: 365583 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 12.45 Sample ID: 362492 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 14.86 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] TLD RING TLD_INNER Sample ID: 289626 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 19.50 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 126 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] TLD RING TLD_INNER Sample ID: 297959 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 16.38 Sample ID: 365584 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 15.96 Sample ID: 362494 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 18.93 Sample Point 67 [ INDICATOR - ENE @ 1.2 miles ] TLD RING TLD_INNER Sample ID: 289627 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 15.34 Sample ID: 297960 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.45 Sample ID: 365585 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 12.96 Sample ID: 362495 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 17.29 Sample Point 93 [ INDICATOR - WNW @ 2.2 miles ] TLD RING TLD_INNER Sample ID: 289628 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 17.33 Sample ID: 297961 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 15.24 Sample ID: 365590 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 15.05 Sample ID: 362499 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 17.34 Sample Point 94 [ INDICATOR - NW @ 2 miles ] TLD RING TLD_INNER Sample ID: 289629 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 18.06 Sample ID: 297962 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 16.06 Sample ID: 365591 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 15.56 Sample ID: 362500 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 18.86 Sample Point 95 [ INDICATOR - NNW @ 2 miles ] TLD RING TLD_INNER Sample ID: 289697 Sample Dates: 1/9/2014 - 4/9/2014 Nuclide Activity mR/Std Qtr 24.29 Sample ID: 298031 Sample Dates: 4/9/2014 - 7/9/2014 Nuclide Activity mR/Std Qtr 12.96 Sample ID: 365592 Sample Dates: 7/9/2014 - 10/8/2014 Nuclide Activity mR/Std Qtr 14.80 Sample ID: 362501 Sample Dates: 10/8/2014 - 1/7/2015 Nuclide Activity mR/Std Qtr 18.42 Media Type: VEGETATION Concentration (Activity): pCi/kg wet 5 Sample Point 5 [ CONTROL - NNW @ 12 miles ]

Sample ID: 295689 Sample Dates: 5/21/2014 - 5/21/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD I-131 <3.37E+01 0.00E+00 3.37E+01 Cs-134 <3.81E+01 0.00E+00 3.81E+01 Cs-137 <4.70E+01 0.00E+00 4.70E+01 Be-7 5.09E+02 2.09E+02 2.83E+02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 127 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 5 Sample Point 5 [ CONTROL - NNW @ 12 miles ]

Sample ID: 295689 Sample Dates: 5/21/2014 - 5/21/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD K-40 3.59E+03 4.20E+02 5.44E+02 Sample ID: 295690 Sample Dates: 5/21/2014 - 5/21/2014 MAPLE Nuclide Activity Sigma Error 1 LLD I-131 <3.60E+01 0.00E+00 3.60E+01 Cs-134 <3.79E+01 0.00E+00 3.79E+01 Cs-137 <4.43E+01 0.00E+00 4.43E+01 Be-7 <3.67E+02 0.00E+00 3.67E+02 K-40 4.03E+03 4.65E+02 1.45E+02 Sample ID: 295691 Sample Dates: 5/21/2014 - 5/21/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD I-131 <3.89E+01 0.00E+00 3.89E+01 Cs-134 <3.94E+01 0.00E+00 3.94E+01 Cs-137 <5.01E+01 0.00E+00 5.01E+01 Be-7 8.55E+02 2.22E+02 2.90E+02 K-40 3.75E+03 4.27E+02 5.61E+02 Sample ID: 296371 Sample Dates: 6/9/2014 - 6/9/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD I-131 <4.33E+01 0.00E+00 4.33E+01 Cs-134 <4.73E+01 0.00E+00 4.73E+01 Cs-137 <3.94E+01 0.00E+00 3.94E+01 Be-7 3.47E+02 1.06E+02 3.60E+02 K-40 5.06E+03 5.34E+02 6.77E+02 Sample ID: 296373 Sample Dates: 6/9/2014 - 6/9/2014 MAPLE Nuclide Activity Sigma Error 1 LLD I-131 <2.28E+01 0.00E+00 2.28E+01 Cs-134 <1.94E+01 0.00E+00 1.94E+01 Cs-137 <1.96E+01 0.00E+00 1.96E+01 Be-7 4.60E+02 7.56E+01 1.51E+02 K-40 4.36E+03 2.46E+02 1.81E+02 Sample ID: 296372 Sample Dates: 6/9/2014 - 6/9/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD I-131 <2.84E+01 0.00E+00 2.84E+01 Cs-134 <2.75E+01 0.00E+00 2.75E+01 Cs-137 <3.34E+01 0.00E+00 3.34E+01 Be-7 <2.81E+02 0.00E+00 2.81E+02 K-40 3.29E+03 3.27E+02 2.59E+02 Sample ID: 298276 Sample Dates: 7/14/2014 - 7/14/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD Mn-54 <3.37E+01 0.00E+00 3.37E+01 Co-58 <2.71E+01 0.00E+00 2.71E+01 Fe-59 <7.74E+01 0.00E+00 7.74E+01 Co-60 <4.53E+01 0.00E+00 4.53E+01 Zn-65 <7.35E+01 0.00E+00 7.35E+01 Zr-95 <4.99E+01 0.00E+00 4.99E+01 Nb-95 <2.23E+01 0.00E+00 2.23E+01 I-131 <4.72E+01 0.00E+00 4.72E+01 Cs-134 <2.80E+01 0.00E+00 2.80E+01 Cs-137 2.20E+01 2.06E+01 3.19E+01 BaLa-140 <6.49E+01 0.00E+00 6.49E+01 Be-7 1.52E+02 1.79E+02 2.91E+02 K-40 3.35E+03 6.55E+02 2.79E+02 Sample ID: 298278 Sample Dates: 7/14/2014 - 7/14/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.45E+01 0.00E+00 2.45E+01 Co-58 <2.81E+01 0.00E+00 2.81E+01 Fe-59 <7.18E+01 0.00E+00 7.18E+01 Co-60 <3.14E+01 0.00E+00 3.14E+01 Zn-65 <6.56E+01 0.00E+00 6.56E+01 Zr-95 <5.47E+01 0.00E+00 5.47E+01 Nb-95 <3.34E+01 0.00E+00 3.34E+01 I-131 <4.74E+01 0.00E+00 4.74E+01 Cs-134 <2.35E+01 0.00E+00 2.35E+01 Cs-137 <2.97E+01 0.00E+00 2.97E+01 BaLa-140 <3.83E+01 0.00E+00 3.83E+01 Be-7 7.09E+02 3.11E+02 4.44E+02 K-40 2.77E+03 5.49E+02 6.06E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 128 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 5 Sample Point 5 [ CONTROL - NNW @ 12 miles ]

Sample ID: 298277 Sample Dates: 7/14/2014 - 7/14/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <4.16E+01 0.00E+00 4.16E+01 Co-58 <2.94E+01 0.00E+00 2.94E+01 Fe-59 <1.04E+02 0.00E+00 1.04E+02 Co-60 <3.60E+01 0.00E+00 3.60E+01 Zn-65 <8.14E+01 0.00E+00 8.14E+01 Zr-95 <7.52E+01 0.00E+00 7.52E+01 Nb-95 <3.02E+01 0.00E+00 3.02E+01 I-131 <4.48E+01 0.00E+00 4.48E+01 Cs-134 <3.18E+01 0.00E+00 3.18E+01 Cs-137 <3.24E+01 0.00E+00 3.24E+01 BaLa-140 <5.37E+01 0.00E+00 5.37E+01 Be-7 5.80E+02 3.00E+02 4.11E+02 K-40 3.67E+03 8.56E+02 5.21E+02 Sample ID: 352249 Sample Dates: 8/11/2014 - 8/11/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.07E+01 0.00E+00 2.07E+01 Co-58 <2.19E+01 0.00E+00 2.19E+01 Fe-59 <4.02E+01 0.00E+00 4.02E+01 Co-60 <2.69E+01 0.00E+00 2.69E+01 Zn-65 <4.88E+01 0.00E+00 4.88E+01 Zr-95 <3.44E+01 0.00E+00 3.44E+01 Nb-95 <1.86E+01 0.00E+00 1.86E+01 I-131 <1.66E+01 0.00E+00 1.66E+01 Cs-134 <1.83E+01 0.00E+00 1.83E+01 Cs-137 <2.47E+01 0.00E+00 2.47E+01 BaLa-140 <2.48E+01 0.00E+00 2.48E+01 Be-7 1.26E+03 2.59E+02 2.59E+02 K-40 2.73E+03 4.79E+02 1.93E+02 Sample ID: 352247 Sample Dates: 8/11/2014 - 8/11/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.78E+01 0.00E+00 2.78E+01 Co-58 <2.48E+01 0.00E+00 2.48E+01 Fe-59 <5.44E+01 0.00E+00 5.44E+01 Co-60 <2.96E+01 0.00E+00 2.96E+01 Zn-65 <7.55E+01 0.00E+00 7.55E+01 Zr-95 <5.10E+01 0.00E+00 5.10E+01 Nb-95 <2.60E+01 0.00E+00 2.60E+01 I-131 <2.96E+01 0.00E+00 2.96E+01 Cs-134 <2.32E+01 0.00E+00 2.32E+01 Cs-137 <2.40E+01 0.00E+00 2.40E+01 BaLa-140 <2.60E+01 0.00E+00 2.60E+01 Be-7 1.88E+03 3.62E+02 3.43E+02 K-40 4.45E+03 7.82E+02 5.70E+02 Sample ID: 352248 Sample Dates: 8/11/2014 - 8/11/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD Mn-54 <3.01E+01 0.00E+00 3.01E+01 Co-58 <2.15E+01 0.00E+00 2.15E+01 Fe-59 <6.07E+01 0.00E+00 6.07E+01 Co-60 <4.23E+01 0.00E+00 4.23E+01 Zn-65 <9.37E+01 0.00E+00 9.37E+01 Zr-95 <5.17E+01 0.00E+00 5.17E+01 Nb-95 <3.50E+01 0.00E+00 3.50E+01 I-131 <2.41E+01 0.00E+00 2.41E+01 Cs-134 <2.80E+01 0.00E+00 2.80E+01 Cs-137 <3.33E+01 0.00E+00 3.33E+01 BaLa-140 <1.11E+01 0.00E+00 1.11E+01 Be-7 1.43E+03 3.25E+02 2.77E+02 K-40 4.41E+03 8.60E+02 5.13E+02 Sample ID: 355360 Sample Dates: 9/15/2014 - 9/15/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD Mn-54 <2.93E+01 0.00E+00 2.93E+01 Co-58 <2.87E+01 0.00E+00 2.87E+01 Fe-59 <5.17E+01 0.00E+00 5.17E+01 Co-60 <3.23E+01 0.00E+00 3.23E+01 Zn-65 <8.37E+01 0.00E+00 8.37E+01 Zr-95 <3.41E+01 0.00E+00 3.41E+01 Nb-95 <2.93E+01 0.00E+00 2.93E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 129 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 5 Sample Point 5 [ CONTROL - NNW @ 12 miles ]

Sample ID: 355360 Sample Dates: 9/15/2014 - 9/15/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD I-131 <3.65E+01 0.00E+00 3.65E+01 Cs-134 <2.49E+01 0.00E+00 2.49E+01 Cs-137 <3.22E+01 0.00E+00 3.22E+01 BaLa-140 <4.05E+01 0.00E+00 4.05E+01 Be-7 1.98E+03 3.58E+02 3.01E+02 K-40 5.50E+03 1.34E+03 2.84E+02 Sample ID: 355358 Sample Dates: 9/15/2014 - 9/15/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.93E+01 0.00E+00 2.93E+01 Co-58 <3.50E+01 0.00E+00 3.50E+01 Fe-59 <7.12E+01 0.00E+00 7.12E+01 Co-60 <4.74E+01 0.00E+00 4.74E+01 Zn-65 <8.06E+01 0.00E+00 8.06E+01 Zr-95 <5.04E+01 0.00E+00 5.04E+01 Nb-95 <2.95E+01 0.00E+00 2.95E+01 I-131 <3.74E+01 0.00E+00 3.74E+01 Cs-134 <3.40E+01 0.00E+00 3.40E+01 Cs-137 <3.03E+01 0.00E+00 3.03E+01 BaLa-140 <4.56E+01 0.00E+00 4.56E+01 Be-7 1.03E+03 3.24E+02 4.02E+02 K-40 3.29E+03 7.05E+02 5.91E+02 Sample ID: 355359 Sample Dates: 9/15/2014 - 9/15/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.06E+01 0.00E+00 2.06E+01 Co-58 <2.76E+01 0.00E+00 2.76E+01 Fe-59 <4.69E+01 0.00E+00 4.69E+01 Co-60 <2.59E+01 0.00E+00 2.59E+01 Zn-65 <4.19E+01 0.00E+00 4.19E+01 Zr-95 <4.47E+01 0.00E+00 4.47E+01 Nb-95 <3.16E+01 0.00E+00 3.16E+01 I-131 <4.10E+01 0.00E+00 4.10E+01 Cs-134 <2.88E+01 0.00E+00 2.88E+01 Cs-137 <3.41E+01 0.00E+00 3.41E+01 BaLa-140 <4.85E+01 0.00E+00 4.85E+01 Be-7 1.26E+03 2.91E+02 2.95E+02 K-40 2.64E+03 5.40E+02 3.59E+02 Sample ID: 358013 Sample Dates: 10/13/2014 - 10/13/2014 FIGLEAF Nuclide Activity Sigma Error 1 LLD Mn-54 <2.80E+01 0.00E+00 2.80E+01 Co-58 <2.98E+01 0.00E+00 2.98E+01 Fe-59 <6.81E+01 0.00E+00 6.81E+01 Co-60 <3.66E+01 0.00E+00 3.66E+01 Zn-65 <5.15E+01 0.00E+00 5.15E+01 Zr-95 <5.00E+01 0.00E+00 5.00E+01 Nb-95 <2.63E+01 0.00E+00 2.63E+01 I-131 <2.86E+01 0.00E+00 2.86E+01 Cs-134 <3.96E+01 0.00E+00 3.96E+01 Cs-137 <3.42E+01 0.00E+00 3.42E+01 BaLa-140 <3.40E+01 0.00E+00 3.40E+01 Be-7 2.54E+03 4.31E+02 3.76E+02 K-40 6.33E+03 9.57E+02 5.93E+02 Sample ID: 358014 Sample Dates: 10/13/2014 - 10/13/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <3.06E+01 0.00E+00 3.06E+01 Co-58 <2.29E+01 0.00E+00 2.29E+01 Fe-59 <4.97E+01 0.00E+00 4.97E+01 Co-60 <3.79E+01 0.00E+00 3.79E+01 Zn-65 <8.19E+01 0.00E+00 8.19E+01 Zr-95 <4.54E+01 0.00E+00 4.54E+01 Nb-95 <1.99E+01 0.00E+00 1.99E+01 I-131 <2.79E+01 0.00E+00 2.79E+01 Cs-134 <3.53E+01 0.00E+00 3.53E+01 Cs-137 <3.05E+01 0.00E+00 3.05E+01 BaLa-140 <3.15E+01 0.00E+00 3.15E+01 Be-7 1.10E+03 3.02E+02 3.61E+02 K-40 3.68E+03 6.63E+02 3.79E+02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 130 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 5 Sample Point 5 [ CONTROL - NNW @ 12 miles ]

Sample ID: 358015 Sample Dates: 10/13/2014 - 10/13/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.27E+01 0.00E+00 2.27E+01 Co-58 <2.28E+01 0.00E+00 2.28E+01 Fe-59 <4.98E+01 0.00E+00 4.98E+01 Co-60 <3.59E+01 0.00E+00 3.59E+01 Zn-65 <6.73E+01 0.00E+00 6.73E+01 Zr-95 <3.11E+01 0.00E+00 3.11E+01 Nb-95 <2.93E+01 0.00E+00 2.93E+01 I-131 <2.71E+01 0.00E+00 2.71E+01 Cs-134 <3.67E+01 0.00E+00 3.67E+01 Cs-137 <2.30E+01 0.00E+00 2.30E+01 BaLa-140 <2.05E+01 0.00E+00 2.05E+01 Be-7 1.06E+03 2.74E+02 3.10E+02 K-40 2.97E+03 5.81E+02 3.86E+02 Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ]

Sample ID: 295692 Sample Dates: 5/21/2014 - 5/21/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD I-131 <3.19E+01 0.00E+00 3.19E+01 Cs-134 <3.23E+01 0.00E+00 3.23E+01 Cs-137 <3.13E+01 0.00E+00 3.13E+01 Be-7 1.85E+02 9.68E+01 2.00E+02 K-40 2.52E+03 3.40E+02 5.82E+02 Sample ID: 295694 Sample Dates: 5/21/2014 - 5/21/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD I-131 <4.70E+01 0.00E+00 4.70E+01 Cs-134 <3.84E+01 0.00E+00 3.84E+01 Cs-137 <4.98E+01 0.00E+00 4.98E+01 Be-7 1.11E+03 1.82E+02 3.39E+02 K-40 3.62E+03 4.81E+02 5.05E+02 Sample ID: 295693 Sample Dates: 5/21/2014 - 5/21/2014 MAPLE Nuclide Activity Sigma Error 1 LLD I-131 <2.50E+01 0.00E+00 2.50E+01 Cs-134 <3.29E+01 0.00E+00 3.29E+01 Cs-137 <3.46E+01 0.00E+00 3.46E+01 Be-7 7.51E+02 1.35E+02 1.94E+02 K-40 3.35E+03 3.21E+02 3.40E+02 Sample ID: 296376 Sample Dates: 6/9/2014 - 6/9/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD I-131 <2.58E+01 0.00E+00 2.58E+01 Cs-134 <2.59E+01 0.00E+00 2.59E+01 Cs-137 <3.62E+01 0.00E+00 3.62E+01 Be-7 6.14E+02 1.03E+02 2.13E+02 K-40 2.88E+03 3.20E+02 4.47E+02 Sample ID: 296375 Sample Dates: 6/9/2014 - 6/9/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD I-131 <1.80E+01 0.00E+00 1.80E+01 Cs-134 <1.72E+01 0.00E+00 1.72E+01 Cs-137 <2.44E+01 0.00E+00 2.44E+01 Be-7 2.84E+02 1.14E+02 1.74E+02 K-40 2.63E+03 2.07E+02 1.75E+02 Sample ID: 296374 Sample Dates: 6/9/2014 - 6/9/2014 MAPLE Nuclide Activity Sigma Error 1 LLD I-131 <2.93E+01 0.00E+00 2.93E+01 Cs-134 <2.63E+01 0.00E+00 2.63E+01 Cs-137 <2.86E+01 0.00E+00 2.86E+01 Be-7 6.27E+02 1.21E+02 2.07E+02 K-40 2.60E+03 2.46E+02 3.73E+02 Sample ID: 298280 Sample Dates: 7/14/2014 - 7/14/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.43E+01 0.00E+00 2.43E+01 Co-58 <2.15E+01 0.00E+00 2.15E+01 Fe-59 <5.54E+01 0.00E+00 5.54E+01 Co-60 <2.22E+01 0.00E+00 2.22E+01 Zn-65 <5.44E+01 0.00E+00 5.44E+01 Zr-95 <4.07E+01 0.00E+00 4.07E+01 Nb-95 <2.70E+01 0.00E+00 2.70E+01 I-131 <4.14E+01 0.00E+00 4.14E+01 Cs-134 <2.09E+01 0.00E+00 2.09E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 131 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 12 Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ]

Sample ID: 298280 Sample Dates: 7/14/2014 - 7/14/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Cs-137 <1.98E+01 0.00E+00 1.98E+01 BaLa-140 <3.65E+01 0.00E+00 3.65E+01 Be-7 4.60E+02 3.63E+02 5.86E+02 K-40 4.09E+03 6.43E+02 5.45E+02 Sample ID: 298281 Sample Dates: 7/14/2014 - 7/14/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <3.38E+01 0.00E+00 3.38E+01 Co-58 <3.52E+01 0.00E+00 3.52E+01 Fe-59 <7.87E+01 0.00E+00 7.87E+01 Co-60 <4.61E+01 0.00E+00 4.61E+01 Zn-65 <8.14E+01 0.00E+00 8.14E+01 Zr-95 <5.06E+01 0.00E+00 5.06E+01 Nb-95 <3.42E+01 0.00E+00 3.42E+01 I-131 <4.78E+01 0.00E+00 4.78E+01 Cs-134 <3.13E+01 0.00E+00 3.13E+01 Cs-137 <4.22E+01 0.00E+00 4.22E+01 BaLa-140 <6.07E+01 0.00E+00 6.07E+01 Be-7 1.35E+03 3.52E+02 3.41E+02 K-40 2.30E+03 5.91E+02 3.64E+02 Sample ID: 298279 Sample Dates: 7/14/2014 - 7/14/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.14E+01 0.00E+00 2.14E+01 Co-58 <2.02E+01 0.00E+00 2.02E+01 Fe-59 <5.42E+01 0.00E+00 5.42E+01 Co-60 <1.77E+01 0.00E+00 1.77E+01 Zn-65 <6.70E+01 0.00E+00 6.70E+01 Zr-95 <5.36E+01 0.00E+00 5.36E+01 Nb-95 <2.98E+01 0.00E+00 2.98E+01 I-131 <3.79E+01 0.00E+00 3.79E+01 Cs-134 <2.17E+01 0.00E+00 2.17E+01 Cs-137 <3.02E+01 0.00E+00 3.02E+01 BaLa-140 <4.58E+01 0.00E+00 4.58E+01 Be-7 5.68E+02 2.22E+02 3.10E+02 K-40 4.11E+03 6.63E+02 5.02E+02 Sample ID: 352254 Sample Dates: 8/11/2014 - 8/11/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.18E+01 0.00E+00 2.18E+01 Co-58 <1.79E+01 0.00E+00 1.79E+01 Fe-59 <6.24E+01 0.00E+00 6.24E+01 Co-60 <3.17E+01 0.00E+00 3.17E+01 Zn-65 <5.97E+01 0.00E+00 5.97E+01 Zr-95 <3.60E+01 0.00E+00 3.60E+01 Nb-95 <2.58E+01 0.00E+00 2.58E+01 I-131 <1.53E+01 0.00E+00 1.53E+01 Cs-134 <1.92E+01 0.00E+00 1.92E+01 Cs-137 <2.97E+01 0.00E+00 2.97E+01 BaLa-140 <3.20E+01 0.00E+00 3.20E+01 Be-7 1.70E+03 3.20E+02 2.93E+02 K-40 2.10E+03 4.76E+02 3.92E+02 Sample ID: 352252 Sample Dates: 8/11/2014 - 8/11/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.29E+01 0.00E+00 2.29E+01 Co-58 <2.11E+01 0.00E+00 2.11E+01 Fe-59 <5.21E+01 0.00E+00 5.21E+01 Co-60 <1.64E+01 0.00E+00 1.64E+01 Zn-65 <4.04E+01 0.00E+00 4.04E+01 Zr-95 <4.23E+01 0.00E+00 4.23E+01 Nb-95 <1.54E+01 0.00E+00 1.54E+01 I-131 <1.87E+01 0.00E+00 1.87E+01 Cs-134 <1.98E+01 0.00E+00 1.98E+01 Cs-137 <1.87E+01 0.00E+00 1.87E+01 BaLa-140 <2.19E+01 0.00E+00 2.19E+01 Be-7 1.52E+03 2.72E+02 1.87E+02 K-40 2.00E+03 4.13E+02 4.80E+01 Sample ID: 352255 Sample Dates: 8/11/2014 - 8/11/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <5.21E+01 0.00E+00 5.21E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 132 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 12 Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ]

Sample ID: 352255 Sample Dates: 8/11/2014 - 8/11/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Co-58 <4.96E+01 0.00E+00 4.96E+01 Fe-59 <9.75E+01 0.00E+00 9.75E+01 Co-60 <4.82E+01 0.00E+00 4.82E+01 Zn-65 <5.31E+01 0.00E+00 5.31E+01 Zr-95 <9.67E+01 0.00E+00 9.67E+01 Nb-95 <4.57E+01 0.00E+00 4.57E+01 I-131 <4.75E+01 0.00E+00 4.75E+01 Cs-134 <3.24E+01 0.00E+00 3.24E+01 Cs-137 <5.37E+01 0.00E+00 5.37E+01 BaLa-140 <4.53E+01 0.00E+00 4.53E+01 Be-7 2.09E+03 5.13E+02 5.18E+02 K-40 2.40E+03 7.99E+02 7.88E+02 Sample ID: 355361 Sample Dates: 9/15/2014 - 9/15/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <7.48E+00 0.00E+00 7.48E+00 Co-58 <7.71E+00 0.00E+00 7.71E+00 Fe-59 <2.04E+01 0.00E+00 2.04E+01 Co-60 <7.89E+00 0.00E+00 7.89E+00 Zn-65 <1.74E+01 0.00E+00 1.74E+01 Zr-95 <1.55E+01 0.00E+00 1.55E+01 Nb-95 <1.03E+01 0.00E+00 1.03E+01 I-131 <4.80E+01 0.00E+00 4.80E+01 Cs-134 <7.93E+00 0.00E+00 7.93E+00 Cs-137 4.77E+00 6.79E+00 1.12E+01 BaLa-140 <2.64E+01 0.00E+00 2.64E+01 Be-7 1.04E+03 2.12E+02 8.88E+01 K-40 2.58E+03 2.61E+02 1.17E+02 Sample ID: 355362 Sample Dates: 9/15/2014 - 9/15/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.54E+01 0.00E+00 2.54E+01 Co-58 <2.92E+01 0.00E+00 2.92E+01 Fe-59 <6.86E+01 0.00E+00 6.86E+01 Co-60 <3.88E+01 0.00E+00 3.88E+01 Zn-65 <6.84E+01 0.00E+00 6.84E+01 Zr-95 <5.94E+01 0.00E+00 5.94E+01 Nb-95 <2.83E+01 0.00E+00 2.83E+01 I-131 <4.25E+01 0.00E+00 4.25E+01 Cs-134 <3.15E+01 0.00E+00 3.15E+01 Cs-137 <3.06E+01 0.00E+00 3.06E+01 BaLa-140 <5.55E+01 0.00E+00 5.55E+01 Be-7 1.47E+03 3.44E+02 3.45E+02 K-40 2.18E+03 5.52E+02 4.63E+02 Sample ID: 355363 Sample Dates: 9/15/2014 - 9/15/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.55E+01 0.00E+00 2.55E+01 Co-58 <2.72E+01 0.00E+00 2.72E+01 Fe-59 <6.18E+01 0.00E+00 6.18E+01 Co-60 <2.75E+01 0.00E+00 2.75E+01 Zn-65 <3.71E+01 0.00E+00 3.71E+01 Zr-95 <3.66E+01 0.00E+00 3.66E+01 Nb-95 <2.78E+01 0.00E+00 2.78E+01 I-131 <3.49E+01 0.00E+00 3.49E+01 Cs-134 <2.13E+01 0.00E+00 2.13E+01 Cs-137 <2.35E+01 0.00E+00 2.35E+01 BaLa-140 <3.15E+01 0.00E+00 3.15E+01 Be-7 1.61E+03 3.29E+02 3.14E+02 K-40 2.05E+03 4.68E+02 3.39E+02 Sample ID: 358011 Sample Dates: 10/13/2014 - 10/13/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.35E+01 0.00E+00 2.35E+01 Co-58 <2.23E+01 0.00E+00 2.23E+01 Fe-59 <4.82E+01 0.00E+00 4.82E+01 Co-60 <3.43E+01 0.00E+00 3.43E+01 Zn-65 <5.38E+01 0.00E+00 5.38E+01 Zr-95 <3.65E+01 0.00E+00 3.65E+01 Nb-95 <2.27E+01 0.00E+00 2.27E+01 I-131 <2.06E+01 0.00E+00 2.06E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 133 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 12 Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ]

Sample ID: 358011 Sample Dates: 10/13/2014 - 10/13/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Cs-134 <2.76E+01 0.00E+00 2.76E+01 Cs-137 <3.14E+01 0.00E+00 3.14E+01 BaLa-140 <2.54E+01 0.00E+00 2.54E+01 Be-7 2.09E+03 3.52E+02 2.41E+02 K-40 1.68E+03 4.22E+02 2.87E+02 Sample ID: 358012 Sample Dates: 10/13/2014 - 10/13/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <7.65E+00 0.00E+00 7.65E+00 Co-58 <8.63E+00 0.00E+00 8.63E+00 Fe-59 <1.49E+01 0.00E+00 1.49E+01 Co-60 <7.65E+00 0.00E+00 7.65E+00 Zn-65 <1.56E+01 0.00E+00 1.56E+01 Zr-95 <1.43E+01 0.00E+00 1.43E+01 Nb-95 <9.88E+00 0.00E+00 9.88E+00 I-131 <2.12E+01 0.00E+00 2.12E+01 Cs-134 <8.45E+00 0.00E+00 8.45E+00 Cs-137 <6.38E+00 0.00E+00 6.38E+00 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 Be-7 1.91E+03 1.99E+02 1.16E+02 K-40 2.14E+03 2.29E+02 9.95E+01 Sample ID: 358010 Sample Dates: 10/13/2014 - 10/13/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.99E+01 0.00E+00 2.99E+01 Co-58 <2.64E+01 0.00E+00 2.64E+01 Fe-59 <3.89E+01 0.00E+00 3.89E+01 Co-60 <3.48E+01 0.00E+00 3.48E+01 Zn-65 <7.32E+01 0.00E+00 7.32E+01 Zr-95 <4.12E+01 0.00E+00 4.12E+01 Nb-95 <2.67E+01 0.00E+00 2.67E+01 I-131 <2.50E+01 0.00E+00 2.50E+01 Cs-134 <2.68E+01 0.00E+00 2.68E+01 Cs-137 <3.29E+01 0.00E+00 3.29E+01 BaLa-140 <3.69E+01 0.00E+00 3.69E+01 Be-7 1.24E+03 3.25E+02 3.74E+02 K-40 2.85E+03 5.95E+02 3.66E+02 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 295696 Sample Dates: 5/21/2014 - 5/21/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD I-131 <3.78E+01 0.00E+00 3.78E+01 Cs-134 <3.24E+01 0.00E+00 3.24E+01 Cs-137 <4.64E+01 0.00E+00 4.64E+01 Be-7 6.33E+02 1.78E+02 3.14E+02 K-40 4.51E+03 4.68E+02 4.34E+02 Sample ID: 295697 Sample Dates: 5/21/2014 - 5/21/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD I-131 <2.17E+01 0.00E+00 2.17E+01 Cs-134 <2.14E+01 0.00E+00 2.14E+01 Cs-137 <2.02E+01 0.00E+00 2.02E+01 Be-7 3.35E+02 8.27E+01 1.46E+02 K-40 2.84E+03 2.20E+02 1.22E+02 Sample ID: 295695 Sample Dates: 5/21/2014 - 5/21/2014 MAPLE Nuclide Activity Sigma Error 1 LLD I-131 <4.55E+01 0.00E+00 4.55E+01 Cs-134 <4.56E+01 0.00E+00 4.56E+01 Cs-137 <5.84E+01 0.00E+00 5.84E+01 Be-7 <6.95E+02 0.00E+00 6.95E+02 K-40 3.12E+03 5.46E+02 6.02E+02 Sample ID: 296379 Sample Dates: 6/9/2014 - 6/9/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD I-131 <3.33E+01 0.00E+00 3.33E+01 Cs-134 <2.48E+01 0.00E+00 2.48E+01 Cs-137 <4.46E+01 0.00E+00 4.46E+01 Be-7 5.11E+02 1.63E+02 2.61E+02 K-40 3.28E+03 3.58E+02 3.09E+02 Sample ID: 296378 Sample Dates: 6/9/2014 - 6/9/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD I-131 <2.39E+01 0.00E+00 2.39E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 134 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 296378 Sample Dates: 6/9/2014 - 6/9/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Cs-134 <2.79E+01 0.00E+00 2.79E+01 Cs-137 <2.53E+01 0.00E+00 2.53E+01 Be-7 <3.85E+02 0.00E+00 3.85E+02 K-40 2.85E+03 3.31E+02 3.53E+02 Sample ID: 296377 Sample Dates: 6/9/2014 - 6/9/2014 MAPLE Nuclide Activity Sigma Error 1 LLD I-131 <2.43E+01 0.00E+00 2.43E+01 Cs-134 <2.62E+01 0.00E+00 2.62E+01 Cs-137 <2.49E+01 0.00E+00 2.49E+01 Be-7 6.63E+02 9.86E+01 1.82E+02 K-40 3.53E+03 2.89E+02 2.43E+02 Sample ID: 298284 Sample Dates: 7/14/2014 - 7/14/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.87E+01 0.00E+00 2.87E+01 Co-58 <2.99E+01 0.00E+00 2.99E+01 Fe-59 <8.09E+01 0.00E+00 8.09E+01 Co-60 <2.99E+01 0.00E+00 2.99E+01 Zn-65 <2.97E+01 0.00E+00 2.97E+01 Zr-95 <4.79E+01 0.00E+00 4.79E+01 Nb-95 <3.08E+01 0.00E+00 3.08E+01 I-131 <4.56E+01 0.00E+00 4.56E+01 Cs-134 <2.77E+01 0.00E+00 2.77E+01 Cs-137 <3.93E+01 0.00E+00 3.93E+01 BaLa-140 <6.70E+01 0.00E+00 6.70E+01 Be-7 4.09E+02 2.35E+02 3.43E+02 K-40 2.47E+03 5.77E+02 4.84E+02 Sample ID: 298283 Sample Dates: 7/14/2014 - 7/14/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <3.56E+01 0.00E+00 3.56E+01 Co-58 <3.61E+01 0.00E+00 3.61E+01 Fe-59 <8.43E+01 0.00E+00 8.43E+01 Co-60 <3.16E+01 0.00E+00 3.16E+01 Zn-65 <7.62E+01 0.00E+00 7.62E+01 Zr-95 <5.33E+01 0.00E+00 5.33E+01 Nb-95 <3.60E+01 0.00E+00 3.60E+01 I-131 <4.25E+01 0.00E+00 4.25E+01 Cs-134 <2.85E+01 0.00E+00 2.85E+01 Cs-137 <2.98E+01 0.00E+00 2.98E+01 BaLa-140 <3.35E+01 0.00E+00 3.35E+01 Be-7 5.03E+02 2.52E+02 3.61E+02 K-40 2.80E+03 6.73E+02 6.48E+02 Sample ID: 298282 Sample Dates: 7/14/2014 - 7/14/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <1.97E+01 0.00E+00 1.97E+01 Co-58 <2.20E+01 0.00E+00 2.20E+01 Fe-59 <5.78E+01 0.00E+00 5.78E+01 Co-60 <2.79E+01 0.00E+00 2.79E+01 Zn-65 <5.27E+01 0.00E+00 5.27E+01 Zr-95 <4.61E+01 0.00E+00 4.61E+01 Nb-95 <2.67E+01 0.00E+00 2.67E+01 I-131 <3.66E+01 0.00E+00 3.66E+01 Cs-134 <2.07E+01 0.00E+00 2.07E+01 Cs-137 <2.55E+01 0.00E+00 2.55E+01 BaLa-140 <4.81E+01 0.00E+00 4.81E+01 Be-7 6.64E+02 2.08E+02 2.62E+02 K-40 3.67E+03 6.16E+02 4.06E+02 Sample ID: 352257 Sample Dates: 8/11/2014 - 8/11/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <3.05E+01 0.00E+00 3.05E+01 Co-58 <2.32E+01 0.00E+00 2.32E+01 Fe-59 <5.37E+01 0.00E+00 5.37E+01 Co-60 <4.24E+01 0.00E+00 4.24E+01 Zn-65 <7.29E+01 0.00E+00 7.29E+01 Zr-95 <6.19E+01 0.00E+00 6.19E+01 Nb-95 <3.13E+01 0.00E+00 3.13E+01 I-131 <2.39E+01 0.00E+00 2.39E+01 Cs-134 <3.01E+01 0.00E+00 3.01E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 135 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 352257 Sample Dates: 8/11/2014 - 8/11/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Cs-137 <1.91E+01 0.00E+00 1.91E+01 BaLa-140 <3.27E+01 0.00E+00 3.27E+01 Be-7 2.30E+03 4.39E+02 3.48E+02 K-40 1.93E+03 5.77E+02 4.73E+02 Sample ID: 352258 Sample Dates: 8/11/2014 - 8/11/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.67E+01 0.00E+00 2.67E+01 Co-58 <2.86E+01 0.00E+00 2.86E+01 Fe-59 <5.60E+01 0.00E+00 5.60E+01 Co-60 <2.58E+01 0.00E+00 2.58E+01 Zn-65 <4.49E+01 0.00E+00 4.49E+01 Zr-95 <4.04E+01 0.00E+00 4.04E+01 Nb-95 <2.01E+01 0.00E+00 2.01E+01 I-131 <2.46E+01 0.00E+00 2.46E+01 Cs-134 <2.54E+01 0.00E+00 2.54E+01 Cs-137 <2.68E+01 0.00E+00 2.68E+01 BaLa-140 <3.11E+01 0.00E+00 3.11E+01 Be-7 1.15E+03 4.26E+02 6.17E+02 K-40 2.37E+03 5.89E+02 5.90E+02 Sample ID: 352256 Sample Dates: 8/11/2014 - 8/11/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.72E+01 0.00E+00 2.72E+01 Co-58 <2.98E+01 0.00E+00 2.98E+01 Fe-59 <4.96E+01 0.00E+00 4.96E+01 Co-60 <3.36E+01 0.00E+00 3.36E+01 Zn-65 <7.17E+01 0.00E+00 7.17E+01 Zr-95 <5.16E+01 0.00E+00 5.16E+01 Nb-95 <3.06E+01 0.00E+00 3.06E+01 I-131 <3.12E+01 0.00E+00 3.12E+01 Cs-134 <2.05E+01 0.00E+00 2.05E+01 Cs-137 <2.80E+01 0.00E+00 2.80E+01 BaLa-140 <2.65E+01 0.00E+00 2.65E+01 Be-7 1.73E+03 4.20E+02 5.24E+02 K-40 2.85E+03 6.35E+02 5.87E+02 Sample ID: 355365 Sample Dates: 9/15/2014 - 9/15/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.56E+01 0.00E+00 2.56E+01 Co-58 <2.11E+01 0.00E+00 2.11E+01 Fe-59 <5.25E+01 0.00E+00 5.25E+01 Co-60 <2.77E+01 0.00E+00 2.77E+01 Zn-65 <6.97E+01 0.00E+00 6.97E+01 Zr-95 <3.89E+01 0.00E+00 3.89E+01 Nb-95 <2.50E+01 0.00E+00 2.50E+01 I-131 <3.54E+01 0.00E+00 3.54E+01 Cs-134 <2.53E+01 0.00E+00 2.53E+01 Cs-137 <2.18E+01 0.00E+00 2.18E+01 BaLa-140 <4.12E+01 0.00E+00 4.12E+01 Be-7 7.98E+02 2.39E+02 2.77E+02 K-40 2.26E+03 4.76E+02 2.46E+02 Sample ID: 355364 Sample Dates: 9/15/2014 - 9/15/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <7.54E+00 0.00E+00 7.54E+00 Co-58 <8.28E+00 0.00E+00 8.28E+00 Fe-59 <2.22E+01 0.00E+00 2.22E+01 Co-60 <8.57E+00 0.00E+00 8.57E+00 Zn-65 <1.93E+01 0.00E+00 1.93E+01 Zr-95 <1.55E+01 0.00E+00 1.55E+01 Nb-95 <1.22E+01 0.00E+00 1.22E+01 I-131 <4.75E+01 0.00E+00 4.75E+01 Cs-134 <8.22E+00 0.00E+00 8.22E+00 Cs-137 <7.95E+00 0.00E+00 7.95E+00 BaLa-140 <2.32E+01 0.00E+00 2.32E+01 Be-7 8.81E+02 1.28E+02 1.28E+02 K-40 2.48E+03 2.67E+02 1.23E+02 Sample ID: 355366 Sample Dates: 9/15/2014 - 9/15/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.88E+01 0.00E+00 2.88E+01 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 136 of 137 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

HARRIS Radiological Environmental Monitoring Analysis Report - 2014 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg wet 63 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ]

Sample ID: 355366 Sample Dates: 9/15/2014 - 9/15/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Co-58 <2.31E+01 0.00E+00 2.31E+01 Fe-59 <6.12E+01 0.00E+00 6.12E+01 Co-60 <3.44E+01 0.00E+00 3.44E+01 Zn-65 <5.29E+01 0.00E+00 5.29E+01 Zr-95 <4.98E+01 0.00E+00 4.98E+01 Nb-95 <3.37E+01 0.00E+00 3.37E+01 I-131 <3.60E+01 0.00E+00 3.60E+01 Cs-134 <3.21E+01 0.00E+00 3.21E+01 Cs-137 <3.50E+01 0.00E+00 3.50E+01 BaLa-140 <2.95E+01 0.00E+00 2.95E+01 Be-7 1.37E+03 3.38E+02 3.69E+02 K-40 2.11E+03 5.79E+02 6.10E+02 Sample ID: 358017 Sample Dates: 10/13/2014 - 10/13/2014 SWEETGUM Nuclide Activity Sigma Error 1 LLD Mn-54 <2.09E+01 0.00E+00 2.09E+01 Co-58 <2.53E+01 0.00E+00 2.53E+01 Fe-59 <6.24E+01 0.00E+00 6.24E+01 Co-60 <3.04E+01 0.00E+00 3.04E+01 Zn-65 <5.30E+01 0.00E+00 5.30E+01 Zr-95 <4.55E+01 0.00E+00 4.55E+01 Nb-95 <2.83E+01 0.00E+00 2.83E+01 I-131 <2.43E+01 0.00E+00 2.43E+01 Cs-134 <2.48E+01 0.00E+00 2.48E+01 Cs-137 <2.62E+01 0.00E+00 2.62E+01 BaLa-140 <7.64E+00 0.00E+00 7.64E+00 Be-7 1.21E+03 2.88E+02 3.06E+02 K-40 2.11E+03 5.05E+02 4.32E+02 Sample ID: 358018 Sample Dates: 10/13/2014 - 10/13/2014 WAXMYRTLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.67E+01 0.00E+00 2.67E+01 Co-58 <2.26E+01 0.00E+00 2.26E+01 Fe-59 <4.42E+01 0.00E+00 4.42E+01 Co-60 <2.80E+01 0.00E+00 2.80E+01 Zn-65 <6.77E+01 0.00E+00 6.77E+01 Zr-95 <4.42E+01 0.00E+00 4.42E+01 Nb-95 <2.62E+01 0.00E+00 2.62E+01 I-131 <2.64E+01 0.00E+00 2.64E+01 Cs-134 <3.38E+01 0.00E+00 3.38E+01 Cs-137 <3.48E+01 0.00E+00 3.48E+01 BaLa-140 <2.39E+01 0.00E+00 2.39E+01 Be-7 1.70E+03 3.69E+02 3.80E+02 K-40 2.22E+03 5.40E+02 4.35E+02 Sample ID: 358016 Sample Dates: 10/13/2014 - 10/13/2014 MAPLE Nuclide Activity Sigma Error 1 LLD Mn-54 <2.84E+01 0.00E+00 2.84E+01 Co-58 <2.85E+01 0.00E+00 2.85E+01 Fe-59 <5.66E+01 0.00E+00 5.66E+01 Co-60 <2.70E+01 0.00E+00 2.70E+01 Zn-65 <5.69E+01 0.00E+00 5.69E+01 Zr-95 <3.90E+01 0.00E+00 3.90E+01 Nb-95 <2.61E+01 0.00E+00 2.61E+01 I-131 <2.58E+01 0.00E+00 2.58E+01 Cs-134 <3.19E+01 0.00E+00 3.19E+01 Cs-137 <2.84E+01 0.00E+00 2.84E+01 BaLa-140 <2.66E+01 0.00E+00 2.66E+01 Be-7 1.33E+03 3.02E+02 3.12E+02 K-40 2.26E+03 4.99E+02 3.29E+02 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Report Generated @ 4/15/2015 10:39:49 EnRad Laboratories Appendix E - Page 137 of 137 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 HNP AREOR There are no errata to be appended to the 2014 HNP AREOR.

Appendix F - Page 2

HNP-15-030, Annual Radiological Environmental Operating Report for 2014

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HNP-15-030, Annual Radiological Environmental Operating Report for 2014

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SUMMARY

2.0 INTRODUCTION

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