HNP-14-038, Annual Radiological Environmental Operating Report for 2013

Annual Radiological Environmental Operating Report for 2013

ML14136A333
Person / Time
Site:	Harris
Issue date:	04/24/2014
From:	Kapopoulos E Duke Energy Corp, Duke Energy Progress
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
HNP-14-038
Download: ML14136A333 (197)

Text

DUKE Ernest J. Kapopoulos,Jr.

Vice President ENERGY HarrisNuclear Plant 54 13 Shearon HarrisRd New HillNC27562-9300 919-362-2502 APR2 4 2014 Serial: HNP-14-038 ATTN: Document Control Desk U.S.Nuclear Regulatory Commission Washington , DC20555-0001 ShearonHarris NuclearPower Plant,Unit 1 Docket No. 50-400

Subject:

AnnualRadiologicalEnvironmentalOperating Report Ladies and Gentlemen:

In accordance with Harris Nuclear Plant TechnicalSpecification 6.9.1.3, Duke Energy Progress, Inc.,is providing the enclosed AnnualRadiologicalEnvironmental Operating Report for 2013.

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

Sincerely, Ernest J. Kapopoulos,Jr.

Enclosure cc: Mr. J. D. Austin, NRCSr. Resident Inspector, HNP Mr. A Hon, 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 2013

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 . . . . . . . . . . . 3-13 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 . . . . . . . . 3-16 3.12.2 Methodology. . . . . . . . . . . 3-16 3.12.3 Land Use Census Results . . . . . . . . 3-17 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 Intercomparison Program . . . . . . . 4-2 4.6 Eckert & Ziegler Analytics Cross Check Program . . . . . 4-2 4.7 ERA Proficiency Testing . . . . . . . . . . 4-2 4.8 State of North Carolina Intercomparison Program . . . . . 4-2 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-4 A.5 Milk . . . . . . . . . . . . A-5 A.6 Broadleaf Vegetation . . . . . . . . . A-5 A.7 Food Products . . . . . . . . . . . A-5 A.8 Aquatic Vegetation . . . . . . . . . . A-5 A.9 Fish . . . . . . . . . . . . A-6 A.10 Shoreline Sediment . . . . . . . . . . A-6 A.11 Bottom Sediment . . . . . . . . . . A-6 A.12 Direct Gamma Radiation (TLD) . . . . . . . A-6 A.13 Annual Land Use Census . . . . . . . . A-7 Appendix B: Radiological Environmental Monitoring Program -

Summary of Results 2013 . . . . . . . . . B-1 Radiological Environmental Monitoring Program Data Summary. . . B-2 Footnotes to Appendix B . . . . . . . . . . B-5 Appendix C: Sampling Deviations and Unavailable Analyses . . . . . C-1 Air Cartridge and Air Particulates . . . . . . . . C-2 Food Crops/Products . . . . . . . . . . C-2 Drinking/Surface Water . . . . . . . . . C-3 Milk/Broadleaf Vegetation . . . . . . . . . C-3 TLDs . . . . . . . . . . . . . C-4 Appendix D: Analytical Deviations . . . . . . . . . . D-1 Air Cartridge and Air Particulates . . . . . . . . D-2 Appendix E: Radiological Environmental Monitoring Program Results 2013 . . E-1 Appendix F: Errata to Previous Reports . . . . . . . . . F-1 Errata to the 2013 AREOR . . . . . . . . F-2 LIST OF FIGURES 2.1-1 Radiological Environmental Sampling Locations (Distant from Plant) . . 2-5 2.1-2 Radiological Environmental Sampling Locations (Distant from Plant). . 2-6 2.1-3 Radiological Environmental Sampling Locations (Nearest Plant) . . . 2-7 2.1-4 Radiological Environmental Sampling Locations (Nearest Plant) . . . 2-8 2.1-5 Radiological Environmental Ground Water (GW) Sampling Locations. . 2-9 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 2013 Surface Water Tritium Activity . . . . . . 3-10 ii

3.11.1 HNP 2013 TLD Averages for Inner and Outer Ring Locations . . . 3-15 3.12 Harris Nuclear Plant 2013 Land Use Census Map. . . . . . 3-19 LIST OF TABLES 2.1-A Radiological Monitoring Program Sampling Locations . . . . 2-10 2.1-B Radiological Monitoring Program Sampling Locations (TLD Sites) . . 2-11 2.2-A Reporting Levels for Radioactivity Concentrations in Environmental Samples 2-12 2.2-B REMP Analysis Frequency . . . . . . . . . 2-12 2.2-C Detection Capabilities for the Lower Limits of Detection. . . . . 2-13 3.0-A Harris Potential Dose Pathway . . . . . . . . . 3-2 3.12.3 Harris Land Use Census Comparison (2012 - 2013). . . . . . 3-18 4.0-A Duke Energy Interlaboratory Comparison Program . . . . . 4-3 4.0-B Eckert & Ziegler Analytics Cross Check Program . . . . . 4-4 4.0-C Environmental Resource Associates (ERA) Proficiency Testing . . . 4-6 LIST OF ACRONYMS USED IN THIS TEXT (in alphabetical order)

A Annually AC Air Cartridge AP Air Particulate APAC Air Particulate Air Cartridge/Radioiodine BW BiWeekly C Control CR Condition Report - Corrective Action Program DEHNR Department of Environmental Health and Natural Resources 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, 2013, through December 31, 2013.

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. Concentrations observed in the environment in 2013 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.

Monitoring results for environmental media are summarized as follows:

Air-monitoring results are lower than the concentrations of radioactivity from pre-operation monitoring. These observations are also consistent with past operational data and control data other than during the timeframe of the 1986 Chernobyl incident and the 2011 Japan earthquake and tsunami which triggered the Fukushima Dai-ichi nuclear power plant incident.

Milk and broadleaf vegetation monitoring results are similar to all the past years where no I-131 concentrations were detected other than during the timeframe of the 1986 Chernobyl incident and the 2011 Japan earthquake and tsunami which triggered the Fukushima Dai-ichi nuclear power plant incident. Broadleaf vegetation is sampled in lieu of indicator milk samples. The broadleaf vegetation sampling continues since the indicator milk location ceased operation in 2013.

Terrestrial vegetation includes various crops collected during a growing season and results indicate no by-product/plant-related activity.

Aquatic organism monitoring includes fish and aquatic vegetation. The fish and aquatic vegetation results indicate no by-product/plant-related activity.

Surface (and drinking) water results indicate no by-product/plant-related gamma activity.

Section 1 - Page 1

Surface water (non-drinking water) results from the Harris Lake spillway show the presence of tritium, which is attributed to plant operation, but is well below the drinking water limit (20,000 pCi/Liter) and the EPA reportable non-drinking water limit (30,000 pCi/Liter). Refer to Section 3.0 Interpretations of Results.

Ground water results show the presence of tritium; however, the results are well below the drinking water limit (20,000 pCi/Liter) and the EPA reportable non-drinking water limit (30,000 pCi/Liter). Refer to Section 3.0 Interpretations of Results.

External radiation dose showed no measurable change from pre-operational data.

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 2

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, and 2.1-5 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 31 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)

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Section 2 - Page 5

Figure 2.1-2 Radiological Environmental Sampling Locations (Distant from Plant)

Section 2 - Page 6

Figure 2.1-3 Radiological Environmental Sampling Locations (Nearest Plant)

Section 2 - Page 7

Figure 2.1-4 Radiological Environmental Sampling Locations (Nearest Plant)

Section 2 - Page 8

Figure 2.1-5 Radiological Environmental Ground Water (GW) Sampling Locations Section 2 - Page 9

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 M(a) SM/M M(b)

>12 Miles NNW - Pittsboro (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 SA above Buckhorn Dam 47 I 3.4 miles SSW W/Q 51 I Water Treatment Building (On BW/M Site) 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 SM/M (not sampled in 2013)

(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 10

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

1. 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 11

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 12

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 13

3.0 INTERPRETATION OF RESULTS The following section depicts and explains the review of the REMP results conducted during 2013 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 all 2013 REMP analysis results was performed to identify changes in environmental levels as a result of HNP operations. Sample data for 2013 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 all laboratory services were consolidated at the EnRad Laboratory in Huntersville, N.C.

Review of all 2013 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 all the HNP data for 2013 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 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.

Radioactivity in environmental samples attributed to plant operations in 2013 for which there is a potential dose pathway to the public is seen in Table 3.0-A.

Section 3 - Page 1

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 8,210 pCi/L (13/13)

No dose calculated.

See above H-3 activity Fish H-3 (tritium) Harris Lake Assume H-3 equilibrium between 0.0181 Total Body lake water and fish tissue 3.1 AIRBORNE RADIOIODINE AND PARTICULATES All 466 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 99.7% availability for the 2013 year. No I-131 activity due to HNP operations has been detected in air samples collected from 1987 through 2013, 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, 2013, to December 31, 2013, the gross beta activity was detectable in all airborne particulate (AP) samples, with acceptable runtime, from the eight indicator locations and the control location. The 415 indicator samples had an average concentration of 1.61E-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 1.65E-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 2013. No plant-related gamma activity was observed for any air particulate filters analyzed during 2013.

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 2013 collection year.

No plant-related gamma activity was detected in quarterly composite filter samples from either the indicator or control locations during 2013. 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 12/31/2012 To 12/30/2013 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-13 Apr-13 Jul-13 Oct-13 Date Figure 3.1-2 HNP from 12/31/2012 To 12/30/2013 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-13 Apr-13 Jul-13 Oct-13 Date Section 3 - Page 3

Figure 3.1-3 HNP from 12/31/2012 To 12/30/2013 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-13 Apr-13 Jul-13 Oct-13 Date Figure 3.1-4 HNP from 12/31/2012 To 12/30/2013 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-13 Apr-13 Jul-13 Oct-13 Date Section 3 - Page 4

Figure 3.1-5 HNP from 12/31/2012 To 12/30/2013 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-13 Apr-13 Jul-13 Oct-13 Date Figure 3.1-6 HNP from 12/31/2012 To 12/30/2013 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-13 Apr-13 Jul-13 Oct-13 Date Section 3 - Page 5

Figure 3.1-7 HNP from 12/31/2012 To 12/30/2013 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-13 Apr-13 Jul-13 Oct-13 Date Figure 3.1-8 HNP from 12/31/2012 To 12/30/2013 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) 4.00E-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-13 Apr-13 Jul-13 Oct-13 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 2013. It has typically been the experience for all of 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 98.8% availability for the 2013 year. Refer to Appendix C or Appendix D for deviations and unavailable samples in 2013 collection year.

The average annual gross beta concentrations at the indicator and control locations were 2.90E+0 pCi/L and 3.60E+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 2013 for Location 40 (Lillington) and Location 38 (control at Cape Fear).

Analyses for gamma-emitting radionuclides from plant operations indicated all 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 5.89E+3 pCi/L, with a minimum and maximum value of 2.55E+3 pCi/L and 9.34E+3 pCi/L, respectively.

Section 3 - Page 7

Figure 3.2 HNP from 12/31/2012 To 12/30/2013 Drinking Water for Gross Beta - Activity (pCi/Liter)

Control Location 38 (Cape Fear Plant Intake) Indicator Location 40 (Lillington - Cape Fear River) 8 7

6 5

Activity 4

3 2

1 0

Jan-13 Apr-13 Jul-13 Oct-13 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 2013. 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 98.8% availability for the 2013 year.

Refer to Appendix C or Appendix D for deviations and unavailable samples in the 2013 collection year.

Average gross beta concentrations at the indicator and control locations were 3.97E+0 pCi/L and 3.60E+0 pCi/L, respectively, in 2013, indicating no contribution from plant operations (See Figure 3.3-1).

Surface water samples were analyzed for gamma and tritium radioactivity. All 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 8.21E+3 pCi/L with minimum and maximum values of 6.38E+3 pCi/L and 1.10E+4 pCi/L, respectively (see Figure 3.3-2). The average Harris Lake Spillway (SW-26) tritium concentration showed a slight increase in tritium compared to the annual average of 8.08E+3 pCi/L in 2012. 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 increase in the average tritium concentration from 2012 to 2013 is due to the low rainfall in 2013 and the number of liquid waste releases.

The November SW-26 tritium concentration was 11,000 pCi/L, which exceeds the HNP administrative limit for tritium (10,000 pCi/L) in Harris Lake. No regulatory limits were violated or exceeded, so this is not a reportable event. The increase was due to the repeat down powers in 2013, where the plant generated and released a significant amount of liquid waste. The continuing need to release liquid waste causes tritium to accumulate in Harris Lake (CR # 651341 / PIP # G-13-02256).

Section 3 - Page 9

Figure 3.3-1 HNP from 12/31/2012 To 12/30/2013 Surface Water for Gross Beta - Activity (pCi/Liter)

Control Location 38 (Cape Fear Plant Intake) Indicator Location 26 (4.7 Miles S) 8 7

6 5

Activity 4

3 2

1 0

Jan-13 Apr-13 Jul-13 Oct-13 Date Figure 3.3-2 HNP 2013 Surface Water Tritium Activity Control Location 38 Indicator Location 26 Indicator Location 40 EPA Drinking Water Level EPA Reporting Level 40000 35000 EPA Reporting Level 30000 25000 pCi/Liter EPA Drinking Water 20000 15000 10000 5000 0

Jan-13 Feb-13 Mar-13 Apr-13 May-13 Jun-13 Jul-13 Aug-13 Sep-13 Oct-13 Nov-13 Dec-13 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, except for GW-83 tritium. The tritium LLDs 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 228 pCi/Liter to 2.61E+3 pCi/Liter in 2013; 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 all 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 2013, as in all 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. Potassium-40, is a natural occurring nuclide in any organic material. The K-40 concentrations in the milk control samples range from 1.36E+3 pCi/L to 1.82E+3 pCi/L. Other natural occurring nuclides are identified in some of the control milk samples.

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 South (S) 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 Section 3 - Page 11

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, Maple, Sweetgum, and Wax Myrtle) in 2013. Refer to Appendix C or Appendix D for deviations and unavailable samples in the 2013 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

1. 613179).

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 2013 included collards, okra, and tomatoes. Gamma analyses of the food crops detected no plant-related activity in five (5) samples from an indicator location and three (3) samples from control locations collected in 2013. The individual, from control location 5 in 2013, 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, and crops being too small to harvest at the time of collection. Therefore, food crop/product from location 5 (control) was not available for sampling September, October, November, and December of 2013, which constitutes a deviation to the program (see Appendix C).

3.7 AQUATIC VEGETATION The 2013 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-related activity in the two indicator samples or the one control sample collected during 2013. No long-term trends are readily observed in these samples.

Section 3 - Page 12

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 2013, other than naturally occurring nuclides. This is consistent with the data for 1989-2012. 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 0.0181 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 0.0115 0.0139 0.0181 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 0.0115, 0.0139, and 0.0181 mrem/year respectively.

3.9 SHORELINE SEDIMENT Shoreline sediment samples were collected semiannually in 2013 from opposite the discharge structure and near the main dam. Gamma analyses of the shoreline sediments Section 3 - Page 13

detected all natural activity in the samples collected during 2013. No long-term trends are readily observed in these samples.

3.10 BOTTOM SEDIMENT During 2013, a total of 2 bottom sediment samples were analyzed from the indicator location.

The 2013 data shows Co-58 (2.84E+1 pCi/kg dry), Co-60 (2.40E+2 pCi/kg dry to 6.00E+2 pCi/kg dry), Cs-137 (1.59E+2 pCi/kg dry to 2.28E+2 pCi/kg dry), and Sb-125 (7.70E+1 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 2013, 174 TLDs were analyzed, 170 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 11.3 mR/std. qtr. and 14.7 mR/std. qtr. respectively. The highest indicator location was 8.7 miles NE of the plant (Apex at Population Center) and its average was 15.1 mR/std. qtr. The differences among these locations are attributed to variations in soils, local geology, and are not the result of plant operations. There were two missing TLDs during the HNP 2013 collection period (CR # 600766 and CR # 634519).

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 all four quarters of 2013 are slightly higher than the outer ring TLD exposures.

Each area monitoring station includes a TLD packet which is a polyethylene bag containing three calcium sulfate phosphors contained in a Panasonic UD-814 badge. The TLD is light tight and the bag is weather-resistant.

Section 3 - Page 14

Dosimeters are machine annealed before field placement. Following exposure in the field, each dosimeter is read utilizing a Panasonic TLD reader. The instrument integrates the light photons emitted from traps as the dosimeter is heated.

Calibration is calculated using dosimeters irradiated to known doses for each set of dosimeters measured. Prior to the measurement of each dosimeter, the instrument is checked through use of an internal constant light source as a secondary standard.

The exposure reported is corrected for exposure received in transit and during storage through the use of control dosimeters.

Figure 3.11.1 3.12 LAND USE CENSUS The 2013 HNP Annual Land Use Census was conducted August 13 and August 14, 2013, as required by the HNP ODCM 4.12.2. Table 3.12.3 summarizes the 2013 census results.

A map indicating identified locations is shown in Figure 3.12. During the 2013 census no irrigated gardens or milk locations were identified within five miles (8 kilometers) of HNP. No environmental program changes were required as a result of the 2013 Land Use Census.

Section 3 - Page 15

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 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.

Section 3 - Page 16

3.12.3 LAND USE CENSUS RESULTS The 2012 and 2013 results of the survey for the nearest resident, garden, milk and meat animals in each sector are compared in Table 3.12.3.

The nearest resident in each sector remained the same from 2012 to 2013, except in the SE, SSE, and W sectors. No gardens were located within 5 miles of the plant for the NNE, NE, ENE, E, SE, and S sectors. The gardens located in 2013 were the same as the gardens located in 2012, except for the addition of four new gardens, which are located in the SSE sector (at 4.26 miles), the SW sector (at 2.9 miles), the W sector (at 3.73 miles), and the WNW sector (at 4.68 miles). The garden in the SSW sector at 4.3 miles in 2012 was no longer available during the 2013 census, but a garden was located at 3.8 miles in the SSW sector in 2013. All meat animals located in 2013 were the same as 2012, except in the E sector (at 1.7 miles), the SE sector (at 4.11 miles), the SSW sector (at 3.93 miles), the W sector (at 4.12 miles), and the WNW sector (at 4.68 miles). No meat animals were found in the NNE, NE, SSE, and S sectors in 2013. Milk goats found in the ESE sector in 2012 are no longer available and were not incorporated into the 2013 HNP environmental monitoring sample program. The resident in the S sector, although technically just outside the 5-mile radius, has again been included in the data because of the historical prevailing winds. 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 2013 Land Use Census survey.

Section 3 - Page 17

Table 3.12.3 Harris Land Use Census Comparison (2012 - 2013)

Nearest Pathway (Miles)

SECTOR RESIDENT GARDEN MEAT ANIMAL MILK ANIMAL 2012 2013 2012 2013 2012 2013 2012 2013 N 2.2 2.2 2.2 2.2 2.2 2.2 --- ---

NNE 1.9 1.9 --- --- --- --- --- ---

NE 2.3 2.3 --- --- --- --- --- ---

ENE 1.6 1.6 --- --- 1.8 1.8 --- ---

E 1.7 1.7 --- --- --- 1.7* --- ---

ESE 2.6 2.6 4.6 4.6 4.6 4.6 4.7 ---*

SE 2.6 4.11* 2.6 ---* 2.6 4.11* --- ---

SSE 4.2 4.26* --- 4.26* --- --- --- ---

S 5.3 5.3 --- --- --- --- --- ---

SSW 3.8 3.8 4.3 3.8* --- 3.93* --- ---

SW 2.9 2.9 --- 2.9* 2.9 2.9 --- ---

WSW 4.5 4.5 4.5 4.5 4.5 4.5 --- ---

W 3.0 2.75* --- 3.73* --- 4.12* --- ---

WNW 2.5 2.5 --- 4.68* --- 4.68* --- ---

NW 2.4 2.4 2.4 2.4 2.4 2.4 --- ---

NNW 1.6 1.6 2.0 2.0 2.0 2.0 --- ---

• Represents a change from the previous year.

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

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

Section 3 - Page 18

Figure 3.12 Harris Nuclear Plant 2013 land Use Census Map Lege nd A HNP_ Gardens 0

HNP_ M eatAnima l HNP_ R e sidence

/"'-.../ HNP_ R a Jroad s

/ ' . . / NavteqHwys

/'v N avwqS!reet s ICJStates I I COUI1ties NHOWa:etbody 0 0.5 1 2 Miles 0..:::::.-=---

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 at the Harris Energy and Environmental Center (HEEC) in New Hill, NC performed 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 INTERCOMPARISON PROGRAM EnRad Laboratories participated in the Duke Energy Fleet Scientific Services (FSS)

Intercomparison Program during 2013. Interlaboratory cross-check standards including gamma in water (Marinelli beakers) and tritium in water samples were analyzed during 2013. A summary of the EnRad Laboratory program results for 2013 is documented in Table 4.0-A.

4.6 ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM EnRad Laboratories participated in the Eckert & Ziegler Analytics Cross Check Program during 2013. Cross-check standards including Marinelli beakers, air filters, tritium in water, and Iodine in milk samples were analyzed at various times of the year. A summary of the EnRad Laboratory program results for 2013 is documented in Table 4.0-B.

4.7 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 2013 is documented in Table 4.0-C.

4.8 STATE OF NORTH CAROLINA INTERCOMPARISON PROGRAM EnRad Laboratories routinely participates with the State of North Carolina Department of Environmental Health and Natural Resources (DEHNR) 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 State of North Carolina Radiation Protection Section for intercomparison analysis.

Section 4 - Page 2

TABLE 4.0-A DUKE ENERGY INTERLABORATORY COMPARISON PROGRAM 2013 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. Six water samples were analyzed for tritium and gamma emitters. The below table lists results for specific analyses. All 27 results were evaluated as prescribed in procedure SRPMP 9-2 and passed the acceptance criteria for the program.

EnRad FSS EnRad/FSS Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Tritium in Water Q131TWR1 H-3 1 pCi/L 7.48E+02 7.27E+02 1.03 Pass 7.53E+02 7.27E+02 1.04 Pass 7.11E+02 7.27E+02 0.98 Pass Q131TWR2 H-3 1 pCi/L 7.51E+05 7.85E+05 0.96 Pass 7.52E+05 7.85E+05 0.96 Pass 7.49E+05 7.85E+05 0.95 Pass Q131TWR3 H-3 1 pCi/L 6.23E+03 5.86E+03 1.06 Pass 6.36E+03 5.86E+03 1.09 Pass 6.32E+03 5.86E+03 1.08 Pass Gamma in Water Q131GWR - 0.5 L Mn-54 1 pCi/L 4.16E+03 3.85E+03 1.08 Pass Co-57 1 pCi/L 7.42E+03 6.86E+03 1.08 Pass Co-60 1 pCi/L 5.94E+03 5.84E+03 1.02 Pass Sn-113 1 pCi/L 7.15E+03 7.23E+03 0.99 Pass Ba-133 1 pCi/L 5.86E+03 5.70E+03 1.03 Pass Cs-137 1 pCi/L 3.38E+03 3.46E+03 0.98 Pass Q131GWR - 1.0 L Mn-54 1 pCi/L 4.21E+03 3.85E+03 1.09 Pass Co-57 1 pCi/L 7.68E+03 6.86E+03 1.12 Pass Co-60 1 pCi/L 5.90E+03 5.84E+03 1.01 Pass Sn-113 1 pCi/L 6.94E+03 7.23E+03 0.96 Pass Ba-133 1 pCi/L 5.58E+03 5.70E+03 0.98 Pass Cs-137 1 pCi/L 3.38E+03 3.46E+03 0.98 Pass Q131GWR - 3.5 L Mn-54 1 pCi/L 4.38E+03 3.85E+03 1.14 Pass Co-57 1 pCi/L 7.91E+03 6.86E+03 1.15 Pass Co-60 1 pCi/L 6.18E+03 5.84E+03 1.06 Pass Sn-113 1 pCi/L 7.52E+03 7.23E+03 1.04 Pass Ba-133 1 pCi/L 5.93E+03 5.70E+03 1.04 Pass Cs-137 1 pCi/L 3.48E+03 3.46E+03 1.00 Pass Section 4 - Page 3

TABLE 4.0-B ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM 2013 Cross Check Results for EnRad Laboratories Cross check samples are received, prepared, and analyzed in all four quarters of 2013. Results are reported directly to Eckert & Ziegler Analytics. Environmental cross check samples were analyzed in replicate, and the average result reported to Eckert & Ziegler Analytics. The acceptance criteria for the program was based on the NRC Inspection Manual Procedure 84750 (IP 84750). Fifty-seven environmental results were reported, of which 57 (100%) met the acceptance criteria based on IP 84750.

EnRad EZA EnRad/EZA Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Beta Filter E10509 Gross Beta 1 pCi 86.5 94.2 0.92 Agreement E10606 Gross Beta 3 pCi 187 215 0.87 Agreement Gamma Filter E10508 Ce-141 1 pCi 97.3 107 0.91 Agreement Cr-51 1 pCi 256 269 0.95 Agreement Cs-134 1 pCi 113 122 0.93 Agreement Cs-137 1 pCi 144 151 0.95 Agreement Co-58 1 pCi 109 119 0.92 Agreement Mn-54 1 pCi 121 119 1.02 Agreement Fe-59 1 pCi 149 144 1.04 Agreement Zn-65 1 pCi 179 171 1.04 Agreement Co-60 1 pCi 224 228 0.98 Agreement I-131 in Milk E10531 I-131 2 pCi/L 91.8 97.3 0.94 Agreement I-131 in Water E10709 I-131 4 pCi/L 98.6 99 1.00 Agreement Beta in Water E10532 Gross Beta 2 pCi/L 304 293 1.04 Agreement E10708 Gross Beta 4 pCi/L 291 279 1.04 Agreement I-131 Cartridge E10533 I-131 2 pCi 94 89.7 1.05 Agreement E10707 I-131 4 pCi 77.2 76.5 1.01 Agreement Gamma Composite E10534 Ce-141 2 pCi 80.6 77.1 1.05 Agreement Filter Cr-51 2 pCi 240 214 1.12 Agreement Cs-134 2 pCi 107 107 1.00 Agreement Cs-137 2 pCi 122 129 0.95 Agreement Co-58 2 pCi 76.6 80.2 0.96 Agreement Mn-54 2 pCi 149 147 1.01 Agreement Fe-59 2 pCi 105 102 1.03 Agreement Zn-65 2 pCi 196 186 1.06 Agreement Co-60 2 pCi 152 150 1.02 Agreement Section 4 - Page 4

TABLE 4.0-B (Cont.)

EnRad EZA EnRad/EZA Sample Sample ID Nuclide Quarter Units Evaluation Value Value Ratio Tritium in Water E10535 H-3 2 pCi/L 9690 9890 0.98 Agreement E10705 H-3 4 pCi/L 13800 14500 0.95 Agreement Gamma Composite E10706 Ce-141 4 pCi 107 117 0.91 Agreement Filter Cr-51 4 pCi 332 317 1.05 Agreement Cs-134 4 pCi 145 152 0.96 Agreement Cs-137 4 pCi 126 135 0.93 Agreement Co-58 4 pCi 118 120 0.98 Agreement Mn-54 4 pCi 177 180 0.99 Agreement Fe-59 4 pCi 140 118 1.19 Agreement Zn-65 4 pCi 781 793 0.99 Agreement Co-60 4 pCi 155 157 0.99 Agreement Gamma in Milk E10536 I-131 2 pCi/L 96.2 95.5 1.01 Agreement Ce-141 2 pCi/L 92 90.4 1.02 Agreement Cr-51 2 pCi/L 238 250 0.95 Agreement Cs-134 2 pCi/L 122 125 0.98 Agreement Cs-137 2 pCi/L 145 151 0.96 Agreement Co-58 2 pCi/L 93.1 94 0.99 Agreement Mn-54 2 pCi/L 180 172 1.05 Agreement Fe-59 2 pCi/L 129 120 1.08 Agreement Zn-65 2 pCi/L 239 217 1.10 Agreement Co-60 2 pCi/L 177 175 1.01 Agreement Gamma in Water E10704 I-131 4 pCi/L 95.4 92.4 1.03 Agreement Ce-141 4 pCi/L 89.3 88.8 1.01 Agreement Cr-51 4 pCi/L 243 240 1.01 Agreement Cs-134 4 pCi/L 109 115 0.95 Agreement Cs-137 4 pCi/L 104 102 1.02 Agreement Co-58 4 pCi/L 91.5 90.6 1.01 Agreement Mn-54 4 pCi/L 141 136 1.04 Agreement Fe-59 4 pCi/L 92.6 89.1 1.04 Agreement Zn-65 4 pCi/L 629 600 1.05 Agreement Co-60 4 pCi/L 123 119 1.04 Agreement Section 4 - Page 5

TABLE 4.0-C ENVIRONMENTAL RESOURCE ASSOCIATES (ERA)

PROFICIENCY TESTING 2013 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 2013. 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 12 (85.7%) 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. 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 (PIPs G 00925 and G-13-02152). Complete documentation of any evaluation will be available and provided to the NRC upon request.

EnRad ERA Acceptance Sample Sample ID Nuclide Quarter Units Evaluation Value Value Limits Gamma Emitters in RAD-93 Ba-133 2 pCi/L 82.5 82.1 69.0 - 90.3 Acceptable Water Cs-134 2 pCi/L 41.9 42.8 34.2 - 47.1 Acceptable Cs-137 2 pCi/L 42.1 41.7 37.0 - 48.8 Acceptable Co-60 2 pCi/L 71 65.9 59.3 - 75.0 Acceptable Zn-65 2 pCi/L 207 189 170 - 222 Acceptable Gamma Emitters in RAD-95 Ba-133 4 pCi/L 48.3 54.2 44.7 - 59.9 Acceptable Water Cs-134 4 pCi/L 81.5 86.7 71.1 - 95.4 Acceptable Cs-137 4 pCi/L 180 206 185 - 228 Not Acceptable

• Co-60 4 pCi/L 103 102 91.8 - 114 Acceptable Zn-65 4 pCi/L 337 333 300 - 389 Acceptable Tritium in Water RAD-93 H-3 2 pCi/L 6620 4050 3450 - 4460 Not Acceptable #

RAD-95 H-3 4 pCi/L 17000 17700 15500 - 19500 Acceptable Iodine-131 in RAD-93 I-131 2 pCi/L 26.9 23.8 19.7 - 28.3 Acceptable Water RAD-95 I-131 4 pCi/L 21.4 23.6 19.6 - 28.0 Acceptable

• See PIP G-13-02152

1. See PIP G-13-00925 Section 4 - Page 6

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 all 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.

Section IV of this appendix describes the environmental sampling frequencies and analysis procedures by media type.

I. CHANGE OF SAMPLING PROCEDURES Control location 5 (Food Product) was added back to the HNP ODCM per Revision 24 in September of 2013 (CR # 613179). All food product locations had been removed from the HNP ODCM since none were irrigated by water influenced by plant waste discharge; however, food product sampling continued though not required.

The Humbug Farm (Goat milk indicator Mk located in the ESE Sector) ceased operations; therefore, no indicator milk samples were collected in 2013 (CR #

604191/PIP # G-13-00704)

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 All the analysis procedures were changed, due to all the samples being analyzed at the EnRad Laboratory in 2013 instead of the Harris Energy and Environmental Center (HEEC) as in past years. No EnRad analysis procedures were changed during 2013.

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 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 Appendix A - Page 3

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 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 Appendix A - Page 4

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

Location 5 = >12 miles WNW - Pittsboro (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)

Appendix A - Page 5

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 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.

Appendix A - Page 6

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 8/13 - 8/14/2013.

Results are shown in Table 3.12.3. No changes were made to the sampling procedures during 2013 as a result of the 2013 census.

Appendix A - Page 7

APPENDIX B RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

OF RESULTS 2013 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: 2013 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 1.61E-2 (415/415) Loc. # 1 1.67E-2 (52/52) 1.65E-2 (52/52) 0 (pCi/m3) 467(4) 3.95E 3.30E-2 2.6 miles N 6.47E 3.30E-2 5.17E 3.15E-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) 466(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 2.90E+0 (26/26) Lillington 3.37E+0 (13/13) 3.60E+0 (13/13) 0 (pCi/l) 39 1.82E+0 - 5.15E+0 Cape Fear River 2.25E+0 - 5.15E+0 1.13E+0 - 5.30E+0 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) 5.89E+3 (13/26) Water Treatment 5.89E+3 (13/13) All less than LLD 0 39 2.25E+3 - 9.34E+3 Building on Site 2.25E+3 - 9.34E+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 3.97E+0 (26/26) Harris Lake Spillway 4.57E+0 (13/13) 3.60E+0 (13/13) 0 (pCi/l) 39 2.25E+0 - 5.59E+0 4.7 miles S 2.91E+0 - 5.59E+0 1.13E+0 - 5.30E+0 Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 39 Loc. # 26 Tritium 2000(7) 8.21E+3 (13/26) Harris Lake Spillway 8.21E+3 (13/13) All less than LLD 0 39 6.38E+3 - 1.10E+4 4.7 miles S 6.38E+3 - 1.10E+4 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: 2013 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) 6.88E+2 (28/76) On Site (BD-MW16) 2.16E+3 (4/4) No Control 0 76 2.28E+2 - 2.61E+3 along Cooling Tower 1.86E+3 - 2.61E+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 All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 54(4)

Food Products Gamma See Table 2.2-C All less than LLD ----- ----- All less than LLD 0 (pCi/kg, wet) 8(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: 2013 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 2.84E+1 (1/2) Loc. # 52 2.84E+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 4.20E+2 (2/2) Loc. # 52 4.20E+2 (2/2) 0 2.40E+2 - 6.00E+2 Harris Lake Cooling 2.40E+2 - 6.00E+2 No Control Tower Mixing Zone 3.8 miles S Cs-137 See Table 2.2-C 1.94E+2 (2/2) Loc. # 52 1.94E+2 (2/2) 0 1.59E+2 - 2.28E+2 Harris Lake Cooling 1.59E+2 - 2.28E+2 No Control Tower Mixing Zone 3.8 miles S Sb-125 ----- 7.70E+1 (1/2) Loc. # 52 7.70E+1 (1/2) 0 Single Value Harris Lake Cooling Single Value No Control Tower Mixing Zone 3.8 miles S Direct Radiation (TLD) TLD Readout ----- 1.13E+1 (170/170) Loc. # 34 1.51E+1 (3/3) Loc. # 5 0 (mR per quarter)(6) 174(4) 8.40E+0 - 1.61E+1 Apex (Population 1.45E+1 - 1.61E+1 1.47E+1 (4/4)

Center) 1.29E+1 - 1.57E+1 8.7 miles NE 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 90-day period (quarter) beginning in 1995. This is the exposure standard used to compare data to the Nuclear Regulatory Commission (NRC).

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 Air Cartridge and Air Particulates Any REMP weekly air samples (Air Cartridge - AC or Air Particulate - AP) that exceed 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> of down time in a surveillance period will be reported as a missed surveillance.

However, this sample will still be counted and the data reported; whereas a missed sample will have no data reported. There were two missed samples in 2013 from the established air samplers. The air samplers operated for a total of 99.7% availability in 2013.

Missed Samples:

• APAC-4; January 28 - February 4, 2013 - Down time was 145.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />, which was caused by a blown fuse in the air sampler. The fuse was replaced and the air sampler was restarted. No telemetry notification of sampler being down, since telemetry is not positioned to pick up on this (CR # 587181 / PIP # G-13-00208).

• AC-63; See Appendix D Missed Surveillances:

• APAC-4; April 15 - April 22, 2013 - Down time of approximately 62.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, which was due to severe weather conditions in the area which resulted in a blown fuse. The event was captured by telemetry notification of a brief power outage (1 minute) and returned to service, but air sampler fuse blew and the telemetry is not positioned to pick up on this. The fuse was replaced and air sampler restarted and returned to service (CR # 602765).

• APAC-47; June 13, 2013 - Down time of approximately 23.3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> due to a power outage (based on sampler run timer and telemetry). The outage was due to bad thunderstorms with high winds and excessive rain in the area (CR # 612890).

Other down times were identified that did not meet the definition of missed surveillances.

Additional information of these events can be found in the corrective action program (CR #

580220, 584471, 586058, 606346, 607806, 608470, and 612893).

Food Crops/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 Appendix C - Page 2

control location #5 into the monthly Radiological Environmental Monitoring Program to ensure the food crop pathway was monitored (CR # 613179). Since there are no crops that are irrigated by plant associated water, failure to monitor an indicator location does not constitute a failure to monitor the pathway.

The individual, from control location 5 in 2013, 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, and crops being too small to harvest at the time of collection.

Therefore, food crop/product from location 5 (control) was not available for sampling September, October, November, and December of 2013, which constitutes a deviation to the program.

Drinking / Surface Water SW-26 (January 14 - January 21, 2013) had approximately 83 hours9.606481e-4 days <br />0.0231 hours <br />1.372354e-4 weeks <br />3.15815e-5 months <br /> of missed surveillances due to a power surge during the severe winter weather event on 1/17/13 (CR # 584472).

DW/SW-38 (April 15 - April 22, 2013) had approximately two (2) hours of missed surveillances due to a water sampler outage on April 18, 2013 (CR # 602771).

DW/SW-40 (May 20 - May 27, 2013) had approximately 50 hours5.787037e-4 days <br />0.0139 hours <br />8.267196e-5 weeks <br />1.9025e-5 months <br /> of missed surveillances due to after collecting 115 samples the water sampler ceased operation. The maximum volume of the sampler was reached prior to the end of the collection period. At the beginning of the next collection period, the sampler was verified to be working properly (CR

1. 608591).

DW/SW-38 (June 3 - June 10, 2013) had approximately 47 hours5.439815e-4 days <br />0.0131 hours <br />7.771164e-5 weeks <br />1.78835e-5 months <br /> of missed surveillances.

DW/SW-40 (June 3 - June 10, 2013) had approximately 58 hours6.712963e-4 days <br />0.0161 hours <br />9.589947e-5 weeks <br />2.2069e-5 months <br /> of missed surveillances.

The missed surveillances for DW/SW-38 and 40 were due to the malfunction and premature shutdown of the samplers due to high sample level. This was caused by a rise in the Cape Fear River water level from heavy rainfall from Tropical Storm Andrea. The samplers were reprogrammed and verified to be working properly (CR # 611427).

DW/SW-38 (June 24 - July 1, 2013) had approximately 20 hours2.314815e-4 days <br />0.00556 hours <br />3.306878e-5 weeks <br />7.61e-6 months <br /> of missed surveillances.

The water sampler experienced a malfunction during sample collection. The water sampler was replaced on 6/27/13. The cause of the event is unknown (CR # 615167).

DW/SW-40 (June 24 - July 1, 2013) had approximately 33 hours3.819444e-4 days <br />0.00917 hours <br />5.456349e-5 weeks <br />1.25565e-5 months <br /> of missed surveillances due to after collecting 135 samples the water sampler ceased operation. The maximum water volume of the sampler was reached prior to the end of the collection period due to heavy rainfall in the area (CR # 615168).

Milk / Broadleaf Vegetation If milk sampling cannot be performed, then three (3) different kinds of broadleaf vegetation nearest each of two different offsite locations of highest predicted annual average ground level D/Q shall be sampled. The new indicator milk sample (Mk-96) that was introduced to the HNP Environmental Monitoring Program in mid-September of 2010 (Humbug Farm -

Appendix C - Page 3

goat milk) was unavailable for sampling in 2013 (CR # 604191 / PIP # G-13-00704).

Broadleaf vegetation samples were not available for sampling due to seasonal unavailability during January, February, March, April, November, and December of 2013 (CR # 584607, 590075, and 596224).

TLDs Two TLD samples, out of a possible 176 TLD samples (indicator and control locations),

were missing during 2013.

TLD # 37 First Quarter 2013 TLD # 37 was missing in the field. The pole that the TLD was attached to was removed. The area was searched, but the TLD could not be located (CR # 600766).

TLD # 34 Third Quarter 2013 TLD # 34 was missing in the field. The area was searched, but the TLD could not be located (CR #634519 / PIP # G-13-01853).

Appendix C - Page 4

APPENDIX D ANALYTICAL DEVIATIONS Appendix D - Page 1

APPENDIX D HARRIS NUCLEAR PLANT ANALYTICAL DEVIATIONS Air Cartridge and Air Particulates Missed Samples:

• AC-63; collection period March 25 - April 1, 2013 - HNP air radioiodine sample was collected without incident and was received at EnRad Lab (LIMS # 254759), but was not processed for analysis (I-131, Cs-134, and Cs-137). This resulted in a laboratory processing error, which results in a missed sample. This is in violation of the sampling requirements described in the HNP ODCM (CR # 611129 / PIP # G 00892).

Appendix D - Page 2

APPENDIX E RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM RESULTS 2013 This appendix includes sample analysis report summaries and supportive data generated from each sample medium for 2013.

Appendix E - Page 1

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 250253 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.30E-02 2.70E-03 5.84E-03 Sample ID: 250671 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.87E-02 2.73E-03 7.69E-03 Sample ID: 250800 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.10E-02 2.61E-03 5.63E-03 Sample ID: 251132 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.32E-03 2.31E-03 7.04E-03 Sample ID: 251304 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.29E-02 2.53E-03 6.35E-03 Sample ID: 251322 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.15E-02 2.47E-03 6.23E-03 Sample ID: 251627 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.08E-02 2.18E-03 6.32E-03 Sample ID: 252093 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.54E-02 2.28E-03 6.16E-03 Sample ID: 252722 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.44E-02 2.19E-03 5.93E-03 Sample ID: 253102 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.19E-02 2.25E-03 6.45E-03 Sample ID: 253905 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.87E-02 2.41E-03 6.30E-03 Sample ID: 254227 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.56E-02 2.27E-03 6.10E-03 Sample ID: 254762 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.37E-02 2.28E-03 6.35E-03 Sample ID: 255323 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.72E-02 2.40E-03 6.44E-03 Sample ID: 255851 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.92E-02 2.45E-03 6.36E-03 Sample ID: 256085 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.51E-02 2.28E-03 6.13E-03 Sample ID: 256362 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.68E-02 2.32E-03 6.11E-03 Sample ID: 256431 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <7.00E-02 0.00E+00 7.00E-02 Cs-134 <6.94E-04 0.00E+00 6.94E-04 Cs-137 <8.21E-04 0.00E+00 8.21E-04 Be-7 1.22E-01 9.07E-03 1.01E-02 K-40 3.65E-02 6.07E-03 8.91E-03 Sample ID: 257152 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.74E-03 2.15E-03 6.61E-03 Sample ID: 257308 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.17E-02 2.20E-03 6.28E-03 Sample ID: 257755 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.97E-02 2.68E-03 6.06E-03 Sample ID: 257999 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.37E-02 2.40E-03 6.83E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 2 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 258234 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.31E-03 6.22E-03 Sample ID: 258581 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.10E-03 2.31E-03 7.12E-03 Sample ID: 259058 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.37E-02 2.09E-03 5.75E-03 Sample ID: 259606 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.06E-02 2.59E-03 7.76E-03 Sample ID: 260240 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.48E-02 2.22E-03 5.93E-03 Sample ID: 260700 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.04E-03 2.12E-03 6.39E-03 Sample ID: 261663 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.77E-03 2.16E-03 6.57E-03 Sample ID: 262165 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.33E-02 2.34E-03 6.65E-03 Sample ID: 262749 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.68E-02 0.00E+00 3.68E-02 Cs-134 <4.52E-04 0.00E+00 4.52E-04 Cs-137 <5.15E-04 0.00E+00 5.15E-04 Be-7 1.49E-01 6.11E-03 6.41E-03 K-40 2.88E-02 4.45E-03 4.33E-03 Sample ID: 263171 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.85E-03 2.24E-03 6.62E-03 Sample ID: 263398 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.08E-02 2.54E-03 6.54E-03 Sample ID: 264056 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.99E-02 2.59E-03 6.83E-03 Sample ID: 265187 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.02E-02 2.07E-03 5.94E-03 Sample ID: 265496 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.23E-02 2.29E-03 6.55E-03 Sample ID: 267182 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.26E-02 2.44E-03 6.17E-03 Sample ID: 267655 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.10E-02 2.86E-03 7.60E-03 Sample ID: 268491 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.97E-02 2.81E-03 6.71E-03 Sample ID: 269651 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.78E-02 2.49E-03 6.66E-03 Sample ID: 270753 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.91E-02 2.30E-03 5.73E-03 Sample ID: 271478 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.88E-02 2.80E-03 6.77E-03 Sample ID: 272085 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.47E-03 2.09E-03 6.49E-03 Sample ID: 272468 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.41E-02 2.41E-03 6.84E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 3 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 272593 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.73E-02 0.00E+00 2.73E-02 Cs-134 <2.94E-04 0.00E+00 2.94E-04 Cs-137 <3.54E-04 0.00E+00 3.54E-04 Be-7 5.51E-02 3.49E-03 3.98E-03 K-40 2.45E-02 2.78E-03 3.71E-03 Sample ID: 272868 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.14E-02 2.46E-03 6.15E-03 Sample ID: 273959 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.96E-02 2.84E-03 6.87E-03 Sample ID: 274406 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.22E-02 2.35E-03 6.77E-03 Sample ID: 274920 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.38E-02 2.33E-03 6.55E-03 Sample ID: 276474 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.31E-02 2.33E-03 6.62E-03 Sample ID: 277390 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.56E-02 2.34E-03 6.35E-03 Sample ID: 278722 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.91E-02 2.41E-03 6.19E-03 Sample ID: 278995 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.01E-02 2.47E-03 6.41E-03 Sample ID: 279641 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.61E-02 2.47E-03 6.80E-03 Sample ID: 280119 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.34E-02 2.22E-03 6.16E-03 Sample ID: 280585 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <8.03E-04 0.00E+00 8.03E-04 Cs-137 <8.55E-04 0.00E+00 8.55E-04 Be-7 1.24E-01 1.14E-02 1.22E-02 K-40 3.44E-02 5.97E-03 1.03E-02 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 250254 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.52E-02 2.47E-03 5.74E-03 Sample ID: 250672 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.83E-02 2.69E-03 7.59E-03 Sample ID: 250801 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.34E-02 2.37E-03 5.52E-03 Sample ID: 251133 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.47E-03 2.19E-03 6.96E-03 Sample ID: 251305 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.41E-02 2.55E-03 6.29E-03 Sample ID: 251323 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.46E-02 2.25E-03 6.16E-03 Sample ID: 251628 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.43E-03 2.08E-03 6.23E-03 Sample ID: 252094 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.49E-02 2.24E-03 6.09E-03 Sample ID: 252723 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.24E-02 2.11E-03 5.86E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 4 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 253103 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.04E-02 2.17E-03 6.36E-03 Sample ID: 253906 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.15E-02 2.46E-03 6.23E-03 Sample ID: 254228 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.33E-02 2.18E-03 6.03E-03 Sample ID: 254763 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.12E-03 2.04E-03 6.27E-03 Sample ID: 255324 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.15E-02 2.50E-03 6.37E-03 Sample ID: 255852 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.15E-02 2.21E-03 6.33E-03 Sample ID: 256086 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.57E-02 2.29E-03 6.09E-03 Sample ID: 256363 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.47E-02 2.24E-03 6.07E-03 Sample ID: 256432 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.08E-02 0.00E+00 5.08E-02 Cs-134 <4.97E-04 0.00E+00 4.97E-04 Cs-137 <5.47E-04 0.00E+00 5.47E-04 Be-7 1.22E-01 7.70E-03 9.64E-03 K-40 4.88E-02 4.74E-03 4.41E-03 Sample ID: 257153 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.29E-03 2.13E-03 6.68E-03 Sample ID: 257309 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.28E-02 2.24E-03 6.29E-03 Sample ID: 257756 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.77E-02 2.62E-03 6.06E-03 Sample ID: 258000 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.30E-03 2.12E-03 6.86E-03 Sample ID: 258235 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.32E-03 6.26E-03 Sample ID: 258582 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.79E-03 2.32E-03 7.17E-03 Sample ID: 259059 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.30E-02 2.09E-03 5.79E-03 Sample ID: 259607 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.11E-02 2.61E-03 7.80E-03 Sample ID: 260241 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.33E-02 2.18E-03 5.96E-03 Sample ID: 260701 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.65E-03 2.09E-03 6.44E-03 Sample ID: 261664 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.19E-03 2.15E-03 6.64E-03 Sample ID: 262166 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.04E-02 2.27E-03 6.69E-03 Sample ID: 262750 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.40E-02 0.00E+00 5.40E-02 Cs-134 <6.17E-04 0.00E+00 6.17E-04 Cs-137 <7.34E-04 0.00E+00 7.34E-04 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 5 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 262750 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 1.43E-01 8.72E-03 9.61E-03 K-40 3.63E-02 5.43E-03 9.48E-03 Sample ID: 263172 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.22E-02 2.32E-03 6.66E-03 Sample ID: 263399 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.44E-02 2.36E-03 6.56E-03 Sample ID: 264057 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.60E-02 2.49E-03 6.90E-03 Sample ID: 265188 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.26E-03 6.00E-03 Sample ID: 265497 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.19E-02 2.29E-03 6.60E-03 Sample ID: 267183 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.30E-02 2.46E-03 6.23E-03 Sample ID: 267656 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.99E-02 2.85E-03 7.68E-03 Sample ID: 268492 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.15E-02 2.88E-03 6.78E-03 Sample ID: 269652 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.09E-02 2.60E-03 6.74E-03 Sample ID: 270754 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.54E-02 2.21E-03 5.79E-03 Sample ID: 271479 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.04E-02 2.61E-03 6.84E-03 Sample ID: 272086 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.87E-03 2.09E-03 6.57E-03 Sample ID: 272469 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.62E-02 2.50E-03 6.92E-03 Sample ID: 272594 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.59E-02 0.00E+00 2.59E-02 Cs-134 <2.48E-04 0.00E+00 2.48E-04 Cs-137 <2.14E-04 0.00E+00 2.14E-04 Be-7 5.09E-02 3.38E-03 3.34E-03 K-40 2.55E-02 2.36E-03 2.46E-03 Sample ID: 272869 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.52E-02 2.58E-03 6.20E-03 Sample ID: 273960 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.82E-02 2.82E-03 6.93E-03 Sample ID: 274407 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.38E-02 2.41E-03 6.83E-03 Sample ID: 274921 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.15E-02 2.29E-03 6.61E-03 Sample ID: 276475 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.23E-02 2.33E-03 6.68E-03 Sample ID: 277391 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.98E-02 2.49E-03 6.44E-03 Sample ID: 278723 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.15E-02 2.50E-03 6.26E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 6 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 278996 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.36E-02 2.59E-03 6.49E-03 Sample ID: 279642 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.63E-02 2.49E-03 6.86E-03 Sample ID: 280120 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.80E-02 2.38E-03 6.23E-03 Sample ID: 280621 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <4.19E-04 0.00E+00 4.19E-04 Cs-137 <4.09E-04 0.00E+00 4.09E-04 Be-7 1.03E-01 6.41E-03 6.96E-03 K-40 4.69E-02 4.04E-03 4.09E-03 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 250256 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.01E-02 2.59E-03 5.71E-03 Sample ID: 250673 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.00E-02 2.71E-03 7.54E-03 Sample ID: 250803 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.69E-02 2.45E-03 5.47E-03 Sample ID: 251134 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.89E-03 2.22E-03 6.90E-03 Sample ID: 251325 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.27E-03 6.11E-03 Sample ID: 251630 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.13E-02 2.16E-03 6.20E-03 Sample ID: 252096 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.37E-02 2.20E-03 6.05E-03 Sample ID: 252725 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.01E-03 1.99E-03 5.83E-03 Sample ID: 253105 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.63E-03 2.14E-03 6.33E-03 Sample ID: 253908 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.06E-02 2.43E-03 6.19E-03 Sample ID: 254230 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.17E-02 2.12E-03 5.99E-03 Sample ID: 254765 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.71E-03 2.11E-03 6.22E-03 Sample ID: 255326 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.76E-02 2.38E-03 6.33E-03 Sample ID: 255854 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.65E-02 2.36E-03 6.33E-03 Sample ID: 256088 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.50E-02 3.61E-03 9.62E-03 Sample ID: 256365 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.83E-02 2.33E-03 6.01E-03 Sample ID: 256433 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.97E-02 0.00E+00 6.97E-02 Cs-134 <6.87E-04 0.00E+00 6.87E-04 Cs-137 <7.52E-04 0.00E+00 7.52E-04 Be-7 1.28E-01 7.91E-03 1.16E-02 K-40 4.55E-02 4.01E-03 8.58E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 7 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 257155 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.80E-03 2.01E-03 6.21E-03 Sample ID: 257311 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.01E-02 2.03E-03 5.87E-03 Sample ID: 257758 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.53E-02 2.44E-03 5.67E-03 Sample ID: 258002 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.12E-02 2.21E-03 6.39E-03 Sample ID: 258237 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.22E-02 2.09E-03 5.83E-03 Sample ID: 258584 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.46E-03 2.10E-03 6.69E-03 Sample ID: 259061 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.38E-02 1.99E-03 5.38E-03 Sample ID: 259609 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.03E-02 2.43E-03 7.27E-03 Sample ID: 260243 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.86E-03 1.96E-03 5.56E-03 Sample ID: 260703 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.70E-03 2.02E-03 6.01E-03 Sample ID: 261666 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.41E-03 2.02E-03 6.16E-03 Sample ID: 262168 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.16E-02 2.18E-03 6.26E-03 Sample ID: 262751 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.68E-02 0.00E+00 4.68E-02 Cs-134 <5.47E-04 0.00E+00 5.47E-04 Cs-137 <5.57E-04 0.00E+00 5.57E-04 Be-7 1.30E-01 8.04E-03 9.11E-03 K-40 4.40E-02 4.80E-03 6.08E-03 Sample ID: 263174 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.17E-02 2.17E-03 6.22E-03 Sample ID: 263401 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.79E-02 2.33E-03 6.14E-03 Sample ID: 264059 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.47E-02 2.31E-03 6.42E-03 Sample ID: 265190 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.24E-02 2.03E-03 5.57E-03 Sample ID: 265499 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.91E-03 2.03E-03 6.15E-03 Sample ID: 267185 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.30E-02 2.34E-03 5.80E-03 Sample ID: 267658 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.85E-02 2.64E-03 7.13E-03 Sample ID: 268494 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.91E-02 2.66E-03 6.29E-03 Sample ID: 269654 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.69E-02 2.33E-03 6.24E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 8 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 270756 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.41E-02 2.04E-03 5.36E-03 Sample ID: 271481 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.31E-02 2.52E-03 6.34E-03 Sample ID: 272088 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.86E-03 1.91E-03 6.08E-03 Sample ID: 272472 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.48E-02 2.31E-03 6.40E-03 Sample ID: 272595 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.67E-02 0.00E+00 2.67E-02 Cs-134 <2.48E-04 0.00E+00 2.48E-04 Cs-137 <3.13E-04 0.00E+00 3.13E-04 Be-7 5.21E-02 4.07E-03 3.36E-03 K-40 4.24E-03 1.93E-03 2.86E-03 Sample ID: 272871 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.46E-02 2.43E-03 5.74E-03 Sample ID: 273962 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.10E-02 2.72E-03 6.41E-03 Sample ID: 274409 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.49E-02 2.29E-03 6.32E-03 Sample ID: 274923 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.03E-02 2.10E-03 6.11E-03 Sample ID: 276477 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.18E-02 2.16E-03 6.19E-03 Sample ID: 277394 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.70E-02 2.25E-03 5.93E-03 Sample ID: 278726 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.80E-02 2.25E-03 5.78E-03 Sample ID: 278999 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.07E-02 2.36E-03 6.00E-03 Sample ID: 279645 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.43E-02 2.29E-03 6.35E-03 Sample ID: 280123 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.88E-02 2.26E-03 5.77E-03 Sample ID: 280576 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <4.60E-04 0.00E+00 4.60E-04 Cs-137 <6.15E-04 0.00E+00 6.15E-04 Be-7 1.17E-01 7.65E-03 8.17E-03 K-40 1.91E-02 3.37E-03 4.51E-03 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 250258 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.79E-02 2.90E-03 6.93E-03 Sample ID: 250674 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.61E-02 2.71E-03 7.87E-03 Sample ID: 250805 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.68E-02 2.51E-03 5.69E-03 Sample ID: 251135 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.45E-03 2.29E-03 7.17E-03 Sample ID: 251312 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.99E-02 2.50E-03 6.51E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 9 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 251330 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.47E-02 2.32E-03 6.37E-03 Sample ID: 251635 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.28E-02 2.27E-03 6.43E-03 Sample ID: 252101 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.34E-02 2.28E-03 6.34E-03 Sample ID: 252730 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.55E-03 2.08E-03 6.06E-03 Sample ID: 253106 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.40E-02 2.34E-03 6.57E-03 Sample ID: 253909 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.95E-02 2.48E-03 6.47E-03 Sample ID: 254231 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.30E-03 6.25E-03 Sample ID: 254766 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.68E-03 2.17E-03 6.53E-03 Sample ID: 255327 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.75E-02 2.48E-03 6.65E-03 Sample ID: 255855 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.81E-02 2.47E-03 6.54E-03 Sample ID: 256089 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.12E-02 2.52E-03 6.34E-03 Sample ID: 256367 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.03E-02 2.47E-03 6.26E-03 Sample ID: 256434 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.18E-02 0.00E+00 6.18E-02 Cs-134 <7.89E-04 0.00E+00 7.89E-04 Cs-137 <8.20E-04 0.00E+00 8.20E-04 Be-7 1.19E-01 7.70E-03 1.04E-02 K-40 2.99E-02 3.86E-03 6.09E-03 Sample ID: 257157 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.51E-03 2.21E-03 7.05E-03 Sample ID: 257313 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.58E-02 2.44E-03 6.65E-03 Sample ID: 257760 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.15E-02 2.82E-03 6.39E-03 Sample ID: 258004 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.15E-02 2.53E-03 7.50E-03 Sample ID: 258239 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.46E-02 2.38E-03 6.57E-03 Sample ID: 258586 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.83E-02 2.30E-03 6.35E-03 Sample ID: 259063 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.20E-03 1.71E-03 4.90E-03 Sample ID: 259611 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.03E-02 2.70E-03 8.21E-03 Sample ID: 260245 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.31E-02 2.29E-03 6.34E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 10 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 260705 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.42E-03 2.27E-03 6.78E-03 Sample ID: 261668 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.23E-03 2.25E-03 6.96E-03 Sample ID: 262171 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.18E-02 2.41E-03 7.04E-03 Sample ID: 262752 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.31E-02 0.00E+00 5.31E-02 Cs-134 <6.93E-04 0.00E+00 6.93E-04 Cs-137 <7.47E-04 0.00E+00 7.47E-04 Be-7 1.38E-01 9.49E-03 9.08E-03 K-40 1.88E-02 4.37E-03 2.02E-03 Sample ID: 263176 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.47E-02 2.50E-03 7.03E-03 Sample ID: 263403 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.53E-02 2.76E-03 6.89E-03 Sample ID: 264061 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.32E-02 2.48E-03 7.13E-03 Sample ID: 265192 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.53E-02 2.36E-03 6.38E-03 Sample ID: 265501 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.36E-02 2.45E-03 6.95E-03 Sample ID: 267187 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.61E-02 2.64E-03 6.54E-03 Sample ID: 267660 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.68E-02 3.17E-03 8.10E-03 Sample ID: 268496 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.59E-02 2.83E-03 7.09E-03 Sample ID: 269656 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.81E-02 2.64E-03 7.17E-03 Sample ID: 270758 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.04E-02 2.45E-03 6.07E-03 Sample ID: 271483 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.81E-02 2.91E-03 7.21E-03 Sample ID: 272090 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.17E-03 2.12E-03 6.74E-03 Sample ID: 272474 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.46E-02 2.63E-03 7.52E-03 Sample ID: 272596 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.90E-02 0.00E+00 2.90E-02 Cs-134 <2.97E-04 0.00E+00 2.97E-04 Cs-137 <3.00E-04 0.00E+00 3.00E-04 Be-7 4.74E-02 3.09E-03 3.93E-03 K-40 1.73E-02 2.48E-03 3.85E-03 Sample ID: 272873 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.50E-02 2.69E-03 6.58E-03 Sample ID: 273964 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.86E-02 2.95E-03 7.35E-03 Sample ID: 274411 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.62E-02 2.60E-03 7.25E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 11 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 274925 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.03E-03 2.30E-03 7.02E-03 Sample ID: 276479 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.30E-02 2.45E-03 7.06E-03 Sample ID: 277396 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.73E-02 2.54E-03 6.87E-03 Sample ID: 278728 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.59E-02 2.46E-03 6.70E-03 Sample ID: 279001 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.37E-02 2.72E-03 6.91E-03 Sample ID: 279647 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.71E-03 2.43E-03 7.32E-03 Sample ID: 280125 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.41E-03 6.61E-03 Sample ID: 280578 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <6.97E-04 0.00E+00 6.97E-04 Cs-137 <8.49E-04 0.00E+00 8.49E-04 Be-7 1.12E-01 9.28E-03 1.08E-02 K-40 1.18E-02 3.71E-03 1.09E-02 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 250255 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.71E-02 2.60E-03 6.03E-03 Sample ID: 250675 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.24E-02 2.89E-03 7.95E-03 Sample ID: 250802 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.71E-02 2.58E-03 5.89E-03 Sample ID: 251136 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.07E-03 2.34E-03 7.51E-03 Sample ID: 251306 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.01E-02 2.56E-03 6.68E-03 Sample ID: 251324 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.43E-02 2.36E-03 6.55E-03 Sample ID: 251629 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.65E-02 2.43E-03 6.57E-03 Sample ID: 252095 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.43E-02 2.35E-03 6.51E-03 Sample ID: 252724 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.46E-03 2.10E-03 6.15E-03 Sample ID: 253104 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.53E-03 2.23E-03 6.76E-03 Sample ID: 253907 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.10E-02 2.56E-03 6.59E-03 Sample ID: 254229 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.70E-02 2.39E-03 6.37E-03 Sample ID: 254764 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.06E-02 2.27E-03 6.67E-03 Sample ID: 255325 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.99E-02 2.58E-03 6.78E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 12 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 255853 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.02E-02 2.58E-03 6.70E-03 Sample ID: 256087 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.83E-03 2.20E-03 6.46E-03 Sample ID: 256364 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.92E-02 2.47E-03 6.40E-03 Sample ID: 256435 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.99E-02 0.00E+00 6.99E-02 Cs-134 <8.79E-04 0.00E+00 8.79E-04 Cs-137 <7.42E-04 0.00E+00 7.42E-04 Be-7 9.85E-02 9.72E-03 1.00E-02 K-40 2.07E-02 5.83E-03 9.28E-03 Sample ID: 257154 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.56E-03 2.08E-03 6.34E-03 Sample ID: 257310 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.23E-03 2.07E-03 6.12E-03 Sample ID: 257757 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.26E-02 2.67E-03 5.81E-03 Sample ID: 258001 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.10E-02 2.26E-03 6.59E-03 Sample ID: 258236 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.64E-02 2.26E-03 5.96E-03 Sample ID: 258583 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.19E-03 2.22E-03 6.92E-03 Sample ID: 259060 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.49E-02 2.06E-03 5.51E-03 Sample ID: 259608 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.04E-02 2.52E-03 7.57E-03 Sample ID: 260242 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.17E-02 2.07E-03 5.77E-03 Sample ID: 260702 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.92E-03 2.09E-03 6.18E-03 Sample ID: 261665 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.95E-03 1.95E-03 6.30E-03 Sample ID: 262167 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.30E-02 2.29E-03 6.50E-03 Sample ID: 262753 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.67E-02 0.00E+00 5.67E-02 Cs-134 <6.33E-04 0.00E+00 6.33E-04 Cs-137 <6.96E-04 0.00E+00 6.96E-04 Be-7 1.58E-01 8.22E-03 9.97E-03 K-40 2.92E-02 4.29E-03 8.58E-03 Sample ID: 263173 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.25E-02 2.25E-03 6.41E-03 Sample ID: 263400 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.00E-02 2.44E-03 6.29E-03 Sample ID: 264058 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.75E-02 2.40E-03 6.45E-03 Sample ID: 265189 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.21E-02 2.11E-03 5.87E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 13 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 265498 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.07E-02 2.19E-03 6.37E-03 Sample ID: 267184 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.30E-02 2.38E-03 5.96E-03 Sample ID: 267657 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.56E-02 2.92E-03 7.37E-03 Sample ID: 268493 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.71E-02 2.67E-03 6.47E-03 Sample ID: 269653 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.07E-02 2.53E-03 6.53E-03 Sample ID: 270755 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.36E-02 2.06E-03 5.51E-03 Sample ID: 271480 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.05E-02 2.78E-03 6.56E-03 Sample ID: 272087 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.88E-03 1.99E-03 6.13E-03 Sample ID: 272470 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.56E-02 2.45E-03 6.78E-03 Sample ID: 272597 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <3.13E-04 0.00E+00 3.13E-04 Cs-137 <3.44E-04 0.00E+00 3.44E-04 Be-7 5.40E-02 3.51E-03 3.21E-03 K-40 9.71E-03 1.72E-03 3.32E-03 Sample ID: 272870 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.33E-02 2.45E-03 5.95E-03 Sample ID: 273961 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.88E-02 2.75E-03 6.65E-03 Sample ID: 274408 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.51E-02 2.37E-03 6.59E-03 Sample ID: 274922 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.36E-02 2.27E-03 6.34E-03 Sample ID: 276476 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.34E-03 6.42E-03 Sample ID: 277392 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.99E-02 2.42E-03 6.20E-03 Sample ID: 278724 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.66E-02 2.30E-03 6.09E-03 Sample ID: 278997 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.16E-02 2.45E-03 6.21E-03 Sample ID: 279643 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.21E-02 2.33E-03 6.72E-03 Sample ID: 280121 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.69E-02 2.26E-03 5.98E-03 Sample ID: 280575 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <6.62E-04 0.00E+00 6.62E-04 Cs-137 <1.03E-03 0.00E+00 1.03E-03 Be-7 1.04E-01 1.18E-02 1.32E-02 K-40 3.82E-02 7.34E-03 1.26E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 14 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 250257 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.15E-02 2.55E-03 5.49E-03 Sample ID: 250676 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.08E-02 2.65E-03 7.25E-03 Sample ID: 250804 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.41E-02 2.36E-03 5.45E-03 Sample ID: 251137 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.54E-03 2.23E-03 6.85E-03 Sample ID: 251308 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.15E-02 2.44E-03 6.15E-03 Sample ID: 251326 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.89E-02 2.34E-03 6.05E-03 Sample ID: 251631 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.31E-02 2.18E-03 6.07E-03 Sample ID: 252097 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.30E-02 2.17E-03 6.04E-03 Sample ID: 252726 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.30E-03 1.96E-03 5.68E-03 Sample ID: 253110 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.06E-03 2.08E-03 6.27E-03 Sample ID: 253913 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.31E-02 2.18E-03 6.11E-03 Sample ID: 254235 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.69E-02 2.23E-03 5.87E-03 Sample ID: 254770 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.22E-02 2.18E-03 6.15E-03 Sample ID: 255331 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.99E-02 2.41E-03 6.20E-03 Sample ID: 255859 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.64E-02 2.30E-03 6.13E-03 Sample ID: 256093 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.32E-02 2.15E-03 5.89E-03 Sample ID: 256366 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.92E-02 2.33E-03 5.90E-03 Sample ID: 256436 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.18E-02 0.00E+00 5.18E-02 Cs-134 <7.07E-04 0.00E+00 7.07E-04 Cs-137 <7.08E-04 0.00E+00 7.08E-04 Be-7 1.08E-01 9.12E-03 9.83E-03 K-40 1.28E-02 4.43E-03 7.50E-03 Sample ID: 257156 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.37E-03 2.09E-03 6.64E-03 Sample ID: 257312 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.40E-02 2.31E-03 6.39E-03 Sample ID: 257759 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.98E-02 2.67E-03 6.05E-03 Sample ID: 258003 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.81E-03 2.30E-03 6.86E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 15 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 258238 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.68E-02 2.34E-03 6.20E-03 Sample ID: 258585 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.90E-03 2.35E-03 7.17E-03 Sample ID: 259062 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.53E-02 2.36E-03 6.49E-03 Sample ID: 259610 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.13E-02 2.64E-03 7.88E-03 Sample ID: 260244 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.63E-02 2.28E-03 5.99E-03 Sample ID: 260704 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.52E-03 2.17E-03 6.41E-03 Sample ID: 261667 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.86E-03 2.15E-03 6.53E-03 Sample ID: 262170 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.13E-02 2.31E-03 6.73E-03 Sample ID: 262754 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.55E-02 0.00E+00 4.55E-02 Cs-134 <5.89E-04 0.00E+00 5.89E-04 Cs-137 <5.71E-04 0.00E+00 5.71E-04 Be-7 1.38E-01 7.76E-03 9.25E-03 K-40 2.86E-02 4.24E-03 6.72E-03 Sample ID: 263175 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.76E-02 2.47E-03 6.64E-03 Sample ID: 263402 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.00E-02 2.50E-03 6.50E-03 Sample ID: 264060 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.66E-02 2.44E-03 6.67E-03 Sample ID: 265191 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.32E-02 2.20E-03 6.08E-03 Sample ID: 265500 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.15E-02 2.28E-03 6.59E-03 Sample ID: 267186 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.09E-02 2.39E-03 6.15E-03 Sample ID: 267659 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.83E-02 2.79E-03 7.61E-03 Sample ID: 268495 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.42E-02 2.66E-03 6.68E-03 Sample ID: 269655 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.99E-02 2.57E-03 6.74E-03 Sample ID: 270757 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.20E-03 1.80E-03 5.70E-03 Sample ID: 271482 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.20E-02 2.62E-03 6.77E-03 Sample ID: 272089 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.82E-03 1.99E-03 6.35E-03 Sample ID: 272473 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.83E-02 2.58E-03 7.00E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 16 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 272598 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.77E-02 0.00E+00 1.77E-02 Cs-134 <1.98E-04 0.00E+00 1.98E-04 Cs-137 <2.24E-04 0.00E+00 2.24E-04 Be-7 4.81E-02 2.44E-03 3.06E-03 K-40 2.27E-02 1.64E-03 2.18E-03 Sample ID: 272872 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.51E-02 2.57E-03 6.15E-03 Sample ID: 273963 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.95E-02 2.82E-03 6.84E-03 Sample ID: 274410 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.56E-02 2.45E-03 6.77E-03 Sample ID: 274924 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.02E-02 2.21E-03 6.51E-03 Sample ID: 276478 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.60E-02 2.41E-03 6.60E-03 Sample ID: 277395 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.74E-02 2.39E-03 6.34E-03 Sample ID: 278727 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.88E-02 2.41E-03 6.23E-03 Sample ID: 279000 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.11E-02 2.48E-03 6.36E-03 Sample ID: 279646 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.53E-02 2.46E-03 6.87E-03 Sample ID: 280124 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.95E-02 2.38E-03 6.11E-03 Sample ID: 280577 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <5.72E-04 0.00E+00 5.72E-04 Cs-137 <6.19E-04 0.00E+00 6.19E-04 Be-7 9.82E-02 7.95E-03 1.08E-02 K-40 3.67E-02 5.42E-03 6.22E-03 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 250259 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.81E-02 2.56E-03 5.80E-03 Sample ID: 250677 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.68E-02 2.67E-03 7.66E-03 Sample ID: 250806 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.51E-02 2.41E-03 5.51E-03 Sample ID: 251138 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.64E-03 2.18E-03 6.98E-03 Sample ID: 251309 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.82E-02 2.40E-03 6.32E-03 Sample ID: 251327 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.79E-02 2.35E-03 6.18E-03 Sample ID: 251632 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.12E-02 2.17E-03 6.26E-03 Sample ID: 252098 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.19E-02 2.16E-03 6.11E-03 Sample ID: 252727 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.00E-02 2.03E-03 5.87E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 17 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 253107 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.78E-03 2.10E-03 6.38E-03 Sample ID: 253910 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.12E-02 2.47E-03 6.28E-03 Sample ID: 254232 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.62E-02 2.27E-03 6.05E-03 Sample ID: 254767 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.08E-02 2.17E-03 6.31E-03 Sample ID: 255328 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.50E-02 2.61E-03 6.41E-03 Sample ID: 255856 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.45E-02 2.33E-03 6.41E-03 Sample ID: 256090 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.37E-02 2.23E-03 6.13E-03 Sample ID: 256368 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.72E-02 2.32E-03 6.07E-03 Sample ID: 256437 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.81E-02 0.00E+00 6.81E-02 Cs-134 <5.53E-04 0.00E+00 5.53E-04 Cs-137 <8.51E-04 0.00E+00 8.51E-04 Be-7 1.14E-01 9.33E-03 1.08E-02 K-40 1.86E-02 3.57E-03 1.86E-03 Sample ID: 257158 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.53E-03 2.00E-03 6.43E-03 Sample ID: 257314 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.64E-02 2.29E-03 6.10E-03 Sample ID: 257761 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.20E-02 2.69E-03 5.91E-03 Sample ID: 258005 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.11E-02 2.27E-03 6.64E-03 Sample ID: 258240 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.49E-02 2.24E-03 6.06E-03 Sample ID: 258587 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.32E-03 2.26E-03 6.92E-03 Sample ID: 259064 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.53E-02 2.09E-03 5.58E-03 Sample ID: 259612 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.15E-02 2.54E-03 7.53E-03 Sample ID: 260246 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.01E-02 2.01E-03 5.74E-03 Sample ID: 260706 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.09E-03 2.07E-03 6.21E-03 Sample ID: 261669 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.21E-03 2.01E-03 6.36E-03 Sample ID: 262172 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.26E-02 2.27E-03 6.45E-03 Sample ID: 262755 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.41E-02 0.00E+00 5.41E-02 Cs-134 <6.55E-04 0.00E+00 6.55E-04 Cs-137 <6.95E-04 0.00E+00 6.95E-04 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 18 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 262755 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 1.32E-01 8.24E-03 1.10E-02 K-40 4.04E-02 6.28E-03 7.80E-03 Sample ID: 263177 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.67E-02 2.38E-03 6.41E-03 Sample ID: 263404 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.03E-02 2.46E-03 6.31E-03 Sample ID: 264062 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.61E-02 2.42E-03 6.62E-03 Sample ID: 265193 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.30E-02 2.10E-03 5.72E-03 Sample ID: 265502 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.98E-03 2.16E-03 6.33E-03 Sample ID: 267188 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.25E-02 2.37E-03 5.97E-03 Sample ID: 267661 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.86E-02 2.99E-03 7.34E-03 Sample ID: 268497 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.15E-02 2.83E-03 6.59E-03 Sample ID: 269657 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.76E-02 2.40E-03 6.42E-03 Sample ID: 270759 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.65E-02 2.17E-03 5.52E-03 Sample ID: 271484 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.64E-02 2.67E-03 6.54E-03 Sample ID: 272091 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.55E-03 2.04E-03 6.21E-03 Sample ID: 272475 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.76E-02 2.44E-03 6.57E-03 Sample ID: 272599 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.52E-02 0.00E+00 2.52E-02 Cs-134 <2.83E-04 0.00E+00 2.83E-04 Cs-137 <2.53E-04 0.00E+00 2.53E-04 Be-7 5.76E-02 3.76E-03 4.40E-03 K-40 1.80E-02 2.24E-03 2.26E-03 Sample ID: 272874 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.32E-02 2.43E-03 5.90E-03 Sample ID: 273965 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.02E-02 2.77E-03 6.61E-03 Sample ID: 274412 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.49E-02 2.34E-03 6.48E-03 Sample ID: 274926 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.17E-02 2.19E-03 6.28E-03 Sample ID: 276480 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.52E-02 2.30E-03 6.30E-03 Sample ID: 277397 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.06E-02 2.40E-03 6.09E-03 Sample ID: 278729 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.71E-02 2.28E-03 5.96E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 19 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 279002 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.29E-02 2.40E-03 5.94E-03 Sample ID: 279648 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.32E-02 2.36E-03 6.76E-03 Sample ID: 280126 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.34E-02 2.13E-03 5.89E-03 Sample ID: 280579 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <7.57E-04 0.00E+00 7.57E-04 Cs-137 <8.62E-04 0.00E+00 8.62E-04 Be-7 1.11E-01 1.11E-02 1.32E-02 K-40 3.56E-02 6.89E-03 1.05E-02 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 250260 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.79E-02 2.59E-03 5.92E-03 Sample ID: 250678 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.66E-02 2.72E-03 7.87E-03 Sample ID: 250807 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.17E-02 2.35E-03 5.64E-03 Sample ID: 251139 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.79E-03 2.29E-03 7.15E-03 Sample ID: 251310 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.75E-02 2.41E-03 6.44E-03 Sample ID: 251328 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.62E-02 2.34E-03 6.30E-03 Sample ID: 251633 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.24E-02 2.24E-03 6.38E-03 Sample ID: 252099 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.24E-02 2.20E-03 6.21E-03 Sample ID: 252728 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.06E-03 2.03E-03 5.96E-03 Sample ID: 253108 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.40E-03 2.16E-03 6.51E-03 Sample ID: 253911 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.60E-02 2.35E-03 6.39E-03 Sample ID: 254233 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.34E-02 2.22E-03 6.15E-03 Sample ID: 254768 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.16E-02 2.22E-03 6.39E-03 Sample ID: 255329 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.80E-02 2.45E-03 6.50E-03 Sample ID: 255857 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.68E-02 2.44E-03 6.56E-03 Sample ID: 256091 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.21E-02 2.21E-03 6.21E-03 Sample ID: 256369 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.55E-02 2.28E-03 6.12E-03 Sample ID: 256438 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.41E-02 0.00E+00 5.41E-02 Cs-134 <6.44E-04 0.00E+00 6.44E-04 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 20 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 256438 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <8.10E-04 0.00E+00 8.10E-04 Be-7 1.26E-01 8.02E-03 1.12E-02 K-40 2.45E-02 4.82E-03 7.46E-03 Sample ID: 257159 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.54E-03 2.28E-03 6.84E-03 Sample ID: 257315 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.51E-02 2.36E-03 6.46E-03 Sample ID: 257762 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.08E-02 2.76E-03 6.22E-03 Sample ID: 258006 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.70E-03 2.21E-03 7.03E-03 Sample ID: 258241 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.49E-02 2.34E-03 6.39E-03 Sample ID: 258588 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.37E-03 2.38E-03 7.32E-03 Sample ID: 259065 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.86E-02 2.28E-03 5.89E-03 Sample ID: 259613 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.66E-03 2.59E-03 7.98E-03 Sample ID: 260247 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.54E-02 2.29E-03 6.08E-03 Sample ID: 260707 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.96E-03 2.16E-03 6.56E-03 Sample ID: 261670 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.70E-03 2.13E-03 6.73E-03 Sample ID: 262173 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.60E-02 2.48E-03 6.82E-03 Sample ID: 262756 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.56E-02 0.00E+00 5.56E-02 Cs-134 <5.78E-04 0.00E+00 5.78E-04 Cs-137 <7.81E-04 0.00E+00 7.81E-04 Be-7 1.49E-01 9.66E-03 9.79E-03 K-40 4.78E-02 5.38E-03 4.71E-03 Sample ID: 263178 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.51E-02 2.44E-03 6.78E-03 Sample ID: 263405 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.07E-02 2.57E-03 6.68E-03 Sample ID: 264063 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.62E-02 2.53E-03 7.01E-03 Sample ID: 265194 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.68E-02 2.31E-03 6.03E-03 Sample ID: 265503 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.33E-02 2.37E-03 6.72E-03 Sample ID: 267189 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.04E-02 2.48E-03 6.51E-03 Sample ID: 267662 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.28E-02 3.06E-03 8.08E-03 Sample ID: 268498 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.79E-02 2.92E-03 7.19E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 21 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 269658 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.98E-02 2.66E-03 7.08E-03 Sample ID: 270760 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.95E-02 2.43E-03 6.08E-03 Sample ID: 271485 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.27E-02 2.78E-03 7.21E-03 Sample ID: 272092 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.90E-03 2.18E-03 6.86E-03 Sample ID: 272476 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.38E-02 2.53E-03 7.24E-03 Sample ID: 272600 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.28E-02 0.00E+00 2.28E-02 Cs-134 <2.58E-04 0.00E+00 2.58E-04 Cs-137 <3.51E-04 0.00E+00 3.51E-04 Be-7 5.90E-02 4.04E-03 3.36E-03 K-40 6.88E-03 1.85E-03 3.84E-03 Sample ID: 272875 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.39E-02 2.63E-03 6.49E-03 Sample ID: 273966 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.70E-02 2.88E-03 7.25E-03 Sample ID: 274413 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.85E-02 2.63E-03 7.13E-03 Sample ID: 274927 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.43E-03 2.30E-03 6.90E-03 Sample ID: 276481 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.21E-02 2.39E-03 6.93E-03 Sample ID: 277398 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.73E-02 2.50E-03 6.71E-03 Sample ID: 278730 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.80E-02 2.49E-03 6.56E-03 Sample ID: 279003 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.10E-02 2.54E-03 6.56E-03 Sample ID: 279649 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.17E-02 2.52E-03 7.43E-03 Sample ID: 280127 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.41E-02 2.34E-03 6.48E-03 Sample ID: 280580 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <6.24E-04 0.00E+00 6.24E-04 Cs-137 <5.31E-04 0.00E+00 5.31E-04 Be-7 1.14E-01 7.80E-03 1.08E-02 K-40 4.47E-02 5.02E-03 5.55E-03 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 250261 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.25E-02 2.41E-03 5.82E-03 Sample ID: 250679 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.65E-02 2.67E-03 7.70E-03 Sample ID: 250808 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.86E-02 2.53E-03 5.60E-03 Sample ID: 251140 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.33E-03 2.25E-03 7.05E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 22 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 251311 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.83E-02 2.42E-03 6.39E-03 Sample ID: 251329 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.62E-02 2.32E-03 6.25E-03 Sample ID: 251634 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.46E-02 2.28E-03 6.28E-03 Sample ID: 252100 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.74E-02 2.36E-03 6.26E-03 Sample ID: 252729 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 8.00E-03 2.00E-03 5.97E-03 Sample ID: 253109 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.99E-03 2.13E-03 6.49E-03 Sample ID: 253912 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.69E-02 2.38E-03 6.36E-03 Sample ID: 254234 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.76E-02 2.33E-03 6.15E-03 Sample ID: 254769 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.23E-02 2.24E-03 6.38E-03 Sample ID: 255330 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.80E-02 2.44E-03 6.49E-03 Sample ID: 255858 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.60E-02 2.42E-03 6.55E-03 Sample ID: 256092 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.68E-02 2.34E-03 6.18E-03 Sample ID: 256370 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.83E-02 2.40E-03 6.22E-03 Sample ID: 256439 Sample Dates: 12/31/2012 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.88E-02 0.00E+00 4.88E-02 Cs-134 <7.54E-04 0.00E+00 7.54E-04 Cs-137 <6.90E-04 0.00E+00 6.90E-04 Be-7 1.23E-01 1.14E-02 1.11E-02 K-40 1.74E-02 5.68E-03 1.14E-02 Sample ID: 257160 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.27E-03 2.06E-03 6.42E-03 Sample ID: 257316 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.28E-02 2.18E-03 6.10E-03 Sample ID: 257763 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.62E-02 2.52E-03 5.88E-03 Sample ID: 258007 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.08E-02 2.27E-03 6.65E-03 Sample ID: 258242 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.52E-02 2.26E-03 6.08E-03 Sample ID: 258589 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.30E-03 2.29E-03 6.94E-03 Sample ID: 259066 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.46E-02 2.07E-03 5.59E-03 Sample ID: 259614 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.09E-02 2.52E-03 7.52E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 23 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 260248 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.52E-02 2.17E-03 5.71E-03 Sample ID: 260708 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD Beta 6.66E-03 2.00E-03 6.15E-03 Sample ID: 261671 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.03E-03 2.12E-03 6.31E-03 Sample ID: 262174 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.37E-02 2.28E-03 6.40E-03 Sample ID: 262757 Sample Dates: 4/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.18E-02 0.00E+00 5.18E-02 Cs-134 <5.41E-04 0.00E+00 5.41E-04 Cs-137 <6.59E-04 0.00E+00 6.59E-04 Be-7 1.40E-01 1.00E-02 9.49E-03 K-40 2.20E-02 4.70E-03 8.95E-03 Sample ID: 263179 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.34E-02 2.28E-03 6.40E-03 Sample ID: 263406 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.86E-02 2.39E-03 6.28E-03 Sample ID: 264064 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.68E-02 2.41E-03 6.55E-03 Sample ID: 265195 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.53E-02 2.16E-03 5.70E-03 Sample ID: 265504 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Beta 9.52E-03 2.12E-03 6.27E-03 Sample ID: 267190 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.49E-02 2.42E-03 5.93E-03 Sample ID: 267663 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.64E-02 2.91E-03 7.27E-03 Sample ID: 268499 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.71E-02 2.68E-03 6.51E-03 Sample ID: 269659 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.23E-02 2.52E-03 6.37E-03 Sample ID: 270761 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.66E-02 2.16E-03 5.50E-03 Sample ID: 271486 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.79E-02 2.69E-03 6.47E-03 Sample ID: 272093 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Beta 7.84E-03 2.04E-03 6.19E-03 Sample ID: 272477 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.34E-02 2.31E-03 6.52E-03 Sample ID: 272601 Sample Dates: 7/1/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.13E-02 0.00E+00 2.13E-02 Cs-134 <2.19E-04 0.00E+00 2.19E-04 Cs-137 <2.39E-04 0.00E+00 2.39E-04 Be-7 5.87E-02 3.34E-03 3.48E-03 K-40 8.58E-03 1.78E-03 3.90E-03 Sample ID: 272876 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.29E-02 2.40E-03 5.84E-03 Sample ID: 273967 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.13E-02 2.78E-03 6.57E-03 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 24 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 274414 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.67E-02 2.38E-03 6.42E-03 Sample ID: 274928 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.70E-02 2.33E-03 6.21E-03 Sample ID: 276482 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.20E-02 2.19E-03 6.27E-03 Sample ID: 277399 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.73E-02 2.29E-03 6.02E-03 Sample ID: 278731 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.94E-02 2.32E-03 5.87E-03 Sample ID: 279004 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.30E-02 2.45E-03 6.07E-03 Sample ID: 279650 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.44E-02 2.31E-03 6.43E-03 Sample ID: 280128 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.50E-02 2.17E-03 5.83E-03 Sample ID: 280581 Sample Dates: 9/30/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <4.92E-04 0.00E+00 4.92E-04 Cs-137 <5.62E-04 0.00E+00 5.62E-04 Be-7 1.06E-01 8.89E-03 8.46E-03 K-40 2.30E-02 4.77E-03 6.27E-03 Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 249840 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.60E-02 0.00E+00 5.60E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <3.67E-02 0.00E+00 3.67E-02 Be-7 <3.07E-01 0.00E+00 3.07E-01 K-40 <9.30E-01 0.00E+00 9.30E-01 Sample ID: 250662 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.16E-02 0.00E+00 3.16E-02 Cs-134 <3.67E-02 0.00E+00 3.67E-02 Cs-137 <3.68E-02 0.00E+00 3.68E-02 Be-7 <2.04E-01 0.00E+00 2.04E-01 K-40 1.01E+00 2.21E-01 5.30E-01 Sample ID: 250809 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.93E-03 0.00E+00 4.93E-03 Cs-134 <1.65E-02 0.00E+00 1.65E-02 Cs-137 <1.56E-02 0.00E+00 1.56E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 <6.13E-01 0.00E+00 6.13E-01 Sample ID: 251141 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.46E-02 0.00E+00 3.46E-02 Cs-134 <2.20E-02 0.00E+00 2.20E-02 Cs-137 <3.12E-02 0.00E+00 3.12E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 1.36E+00 1.95E-01 2.02E-01 Sample ID: 251313 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.60E-02 0.00E+00 3.60E-02 Cs-134 <2.97E-02 0.00E+00 2.97E-02 Cs-137 <3.52E-02 0.00E+00 3.52E-02 Be-7 <2.65E-01 0.00E+00 2.65E-01 K-40 8.57E-01 2.02E-01 5.51E-01 Sample ID: 251331 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.66E-02 0.00E+00 2.66E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 25 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 251331 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <1.95E-02 0.00E+00 1.95E-02 Cs-137 <2.73E-02 0.00E+00 2.73E-02 Be-7 <2.06E-01 0.00E+00 2.06E-01 K-40 4.43E-01 1.80E-01 2.91E-01 Sample ID: 251618 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.87E-02 0.00E+00 2.87E-02 Cs-134 <1.87E-02 0.00E+00 1.87E-02 Cs-137 <2.48E-02 0.00E+00 2.48E-02 Be-7 <2.27E-01 0.00E+00 2.27E-01 K-40 1.05E+00 1.71E-01 7.49E-02 Sample ID: 252084 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.99E-02 0.00E+00 3.99E-02 Cs-134 <2.82E-02 0.00E+00 2.82E-02 Cs-137 <3.80E-02 0.00E+00 3.80E-02 Be-7 <1.99E-01 0.00E+00 1.99E-01 K-40 9.48E-01 2.18E-01 1.35E-01 Sample ID: 252713 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.85E-02 0.00E+00 2.85E-02 Cs-134 <2.66E-02 0.00E+00 2.66E-02 Cs-137 <3.36E-02 0.00E+00 3.36E-02 Be-7 <1.67E-01 0.00E+00 1.67E-01 K-40 1.12E+00 2.24E-01 1.21E-01 Sample ID: 253093 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.11E-02 0.00E+00 3.11E-02 Cs-134 <2.70E-02 0.00E+00 2.70E-02 Cs-137 <3.46E-02 0.00E+00 3.46E-02 Be-7 <2.89E-01 0.00E+00 2.89E-01 K-40 7.37E-01 1.90E-01 6.42E-01 Sample ID: 253896 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.10E-02 0.00E+00 4.10E-02 Cs-134 <2.69E-02 0.00E+00 2.69E-02 Cs-137 <4.33E-02 0.00E+00 4.33E-02 Be-7 <2.14E-01 0.00E+00 2.14E-01 K-40 9.05E-01 2.68E-01 4.28E-01 Sample ID: 254218 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.32E-02 0.00E+00 3.32E-02 Cs-134 <3.52E-02 0.00E+00 3.52E-02 Cs-137 <3.21E-02 0.00E+00 3.21E-02 Be-7 <2.38E-01 0.00E+00 2.38E-01 K-40 8.30E-01 2.01E-01 3.52E-01 Sample ID: 254753 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <2.32E-02 0.00E+00 2.32E-02 Cs-137 <2.99E-02 0.00E+00 2.99E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 6.53E-01 2.26E-01 3.21E-01 Sample ID: 255314 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.61E-02 0.00E+00 2.61E-02 Cs-134 <3.91E-02 0.00E+00 3.91E-02 Cs-137 <3.10E-02 0.00E+00 3.10E-02 Be-7 <2.12E-01 0.00E+00 2.12E-01 K-40 7.40E-01 1.91E-01 3.57E-01 Sample ID: 255842 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.67E-02 0.00E+00 3.67E-02 Cs-134 <2.43E-02 0.00E+00 2.43E-02 Cs-137 <3.64E-02 0.00E+00 3.64E-02 Be-7 <2.49E-01 0.00E+00 2.49E-01 K-40 6.54E-01 2.22E-01 4.42E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 26 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 256076 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.85E-02 0.00E+00 2.85E-02 Cs-134 <2.00E-02 0.00E+00 2.00E-02 Cs-137 <3.38E-02 0.00E+00 3.38E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 1.23E+00 1.92E-01 3.29E-01 Sample ID: 256354 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.24E-02 0.00E+00 3.24E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <3.21E-02 0.00E+00 3.21E-02 Be-7 <2.32E-01 0.00E+00 2.32E-01 K-40 9.41E-01 2.99E-01 4.70E-01 Sample ID: 257144 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.57E-02 0.00E+00 3.57E-02 Cs-134 <2.45E-02 0.00E+00 2.45E-02 Cs-137 <2.53E-02 0.00E+00 2.53E-02 Be-7 <2.18E-01 0.00E+00 2.18E-01 K-40 7.75E-01 2.55E-01 4.56E-01 Sample ID: 257300 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.19E-02 0.00E+00 3.19E-02 Cs-134 <6.28E-03 0.00E+00 6.28E-03 Cs-137 <3.80E-02 0.00E+00 3.80E-02 Be-7 <1.95E-01 0.00E+00 1.95E-01 K-40 7.61E-01 2.50E-01 4.55E-01 Sample ID: 257747 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <2.53E-02 0.00E+00 2.53E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 1.02E+00 1.62E-01 6.92E-02 Sample ID: 257991 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.03E-02 0.00E+00 3.03E-02 Cs-134 <1.91E-02 0.00E+00 1.91E-02 Cs-137 <1.46E-02 0.00E+00 1.46E-02 Be-7 <1.64E-01 0.00E+00 1.64E-01 K-40 5.78E-01 1.57E-01 2.65E-01 Sample ID: 258226 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.87E-02 0.00E+00 5.87E-02 Cs-134 <4.22E-02 0.00E+00 4.22E-02 Cs-137 <4.69E-02 0.00E+00 4.69E-02 Be-7 <2.73E-01 0.00E+00 2.73E-01 K-40 7.24E-01 2.09E-01 7.50E-01 Sample ID: 258573 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.76E-02 0.00E+00 6.76E-02 Cs-134 <3.97E-02 0.00E+00 3.97E-02 Cs-137 <4.06E-02 0.00E+00 4.06E-02 Be-7 <3.19E-01 0.00E+00 3.19E-01 K-40 6.59E-01 2.57E-01 5.78E-01 Sample ID: 259049 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.91E-02 0.00E+00 1.91E-02 Cs-137 <2.28E-02 0.00E+00 2.28E-02 Be-7 <1.54E-01 0.00E+00 1.54E-01 K-40 1.43E+00 1.89E-01 2.69E-01 Sample ID: 259597 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.14E-02 0.00E+00 3.14E-02 Cs-134 <2.41E-02 0.00E+00 2.41E-02 Cs-137 <2.66E-02 0.00E+00 2.66E-02 Be-7 <1.94E-01 0.00E+00 1.94E-01 K-40 1.24E+00 2.42E-01 3.95E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 27 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 260231 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.93E-02 0.00E+00 3.93E-02 Cs-134 <3.38E-02 0.00E+00 3.38E-02 Cs-137 <3.60E-02 0.00E+00 3.60E-02 Be-7 <2.68E-01 0.00E+00 2.68E-01 K-40 5.83E-01 2.60E-01 6.77E-01 Sample ID: 260691 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.73E-02 0.00E+00 2.73E-02 Cs-134 <2.96E-02 0.00E+00 2.96E-02 Cs-137 <2.57E-02 0.00E+00 2.57E-02 Be-7 <2.19E-01 0.00E+00 2.19E-01 K-40 <1.15E+00 0.00E+00 1.15E+00 Sample ID: 261654 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.50E-02 0.00E+00 3.50E-02 Cs-134 <3.25E-02 0.00E+00 3.25E-02 Cs-137 <4.16E-02 0.00E+00 4.16E-02 Be-7 <2.66E-01 0.00E+00 2.66E-01 K-40 9.22E-01 2.17E-01 1.38E-01 Sample ID: 262156 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.68E-02 0.00E+00 3.68E-02 Cs-134 <3.07E-02 0.00E+00 3.07E-02 Cs-137 <2.98E-02 0.00E+00 2.98E-02 Be-7 <2.30E-01 0.00E+00 2.30E-01 K-40 1.18E+00 2.47E-01 1.39E-01 Sample ID: 263162 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.15E-02 0.00E+00 3.15E-02 Cs-134 <2.52E-02 0.00E+00 2.52E-02 Cs-137 <2.85E-02 0.00E+00 2.85E-02 Be-7 <2.23E-01 0.00E+00 2.23E-01 K-40 <9.07E-01 0.00E+00 9.07E-01 Sample ID: 263389 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.07E-02 0.00E+00 5.07E-02 Cs-134 <3.56E-02 0.00E+00 3.56E-02 Cs-137 <3.93E-02 0.00E+00 3.93E-02 Be-7 <3.55E-01 0.00E+00 3.55E-01 K-40 1.16E+00 3.30E-01 5.76E-01 Sample ID: 264047 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.78E-02 0.00E+00 4.78E-02 Cs-134 <4.01E-02 0.00E+00 4.01E-02 Cs-137 <4.04E-02 0.00E+00 4.04E-02 Be-7 <3.58E-01 0.00E+00 3.58E-01 K-40 1.10E+00 2.59E-01 1.65E-01 Sample ID: 265178 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.45E-02 0.00E+00 4.45E-02 Cs-134 <3.70E-02 0.00E+00 3.70E-02 Cs-137 <4.62E-02 0.00E+00 4.62E-02 Be-7 <2.19E-01 0.00E+00 2.19E-01 K-40 <1.15E+00 0.00E+00 1.15E+00 Sample ID: 265487 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.51E-02 0.00E+00 4.51E-02 Cs-134 <2.63E-02 0.00E+00 2.63E-02 Cs-137 <3.54E-02 0.00E+00 3.54E-02 Be-7 <3.32E-01 0.00E+00 3.32E-01 K-40 6.11E-01 2.43E-01 4.58E-01 Sample ID: 267173 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.03E-02 0.00E+00 6.03E-02 Cs-134 <2.30E-02 0.00E+00 2.30E-02 Cs-137 <4.07E-02 0.00E+00 4.07E-02 Be-7 <2.82E-01 0.00E+00 2.82E-01 K-40 <1.08E+00 0.00E+00 1.08E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 28 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 267646 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.90E-02 0.00E+00 6.90E-02 Cs-134 <4.66E-02 0.00E+00 4.66E-02 Cs-137 <5.34E-02 0.00E+00 5.34E-02 Be-7 <3.92E-01 0.00E+00 3.92E-01 K-40 <1.38E+00 0.00E+00 1.38E+00 Sample ID: 268482 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.88E-02 0.00E+00 4.88E-02 Cs-134 <3.39E-02 0.00E+00 3.39E-02 Cs-137 <2.62E-02 0.00E+00 2.62E-02 Be-7 <4.04E-01 0.00E+00 4.04E-01 K-40 9.09E-01 2.35E-01 4.58E-01 Sample ID: 269642 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.32E-02 0.00E+00 4.32E-02 Cs-134 <3.83E-02 0.00E+00 3.83E-02 Cs-137 <3.49E-02 0.00E+00 3.49E-02 Be-7 <3.89E-01 0.00E+00 3.89E-01 K-40 1.16E+00 2.65E-01 7.55E-01 Sample ID: 270744 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.82E-02 0.00E+00 3.82E-02 Cs-134 <3.35E-02 0.00E+00 3.35E-02 Cs-137 <3.52E-02 0.00E+00 3.52E-02 Be-7 <3.07E-01 0.00E+00 3.07E-01 K-40 8.99E-01 2.32E-01 5.46E-01 Sample ID: 271469 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.81E-02 0.00E+00 4.81E-02 Cs-134 <4.47E-02 0.00E+00 4.47E-02 Cs-137 <3.10E-02 0.00E+00 3.10E-02 Be-7 <3.35E-01 0.00E+00 3.35E-01 K-40 9.70E-01 2.42E-01 1.64E-01 Sample ID: 272076 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.81E-02 0.00E+00 3.81E-02 Cs-134 <3.03E-02 0.00E+00 3.03E-02 Cs-137 <4.29E-02 0.00E+00 4.29E-02 Be-7 <3.58E-01 0.00E+00 3.58E-01 K-40 7.85E-01 2.18E-01 6.32E-01 Sample ID: 272459 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.39E-02 0.00E+00 2.39E-02 Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 1.19E+00 1.73E-01 1.84E-01 Sample ID: 272859 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.79E-02 0.00E+00 4.79E-02 Cs-134 <3.30E-02 0.00E+00 3.30E-02 Cs-137 <3.98E-02 0.00E+00 3.98E-02 Be-7 <2.75E-01 0.00E+00 2.75E-01 K-40 6.22E-01 2.41E-01 6.30E-01 Sample ID: 273950 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.79E-02 0.00E+00 2.79E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.41E-01 0.00E+00 1.41E-01 K-40 1.02E+00 2.08E-01 3.87E-01 Sample ID: 274397 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.59E-02 0.00E+00 3.59E-02 Cs-134 <2.73E-02 0.00E+00 2.73E-02 Cs-137 <4.76E-02 0.00E+00 4.76E-02 Be-7 <1.96E-01 0.00E+00 1.96E-01 K-40 5.65E-01 3.30E-01 7.65E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 29 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 1 [ INDICATOR - N @ 2.6 miles ] 1 Sample ID: 274911 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.10E-02 0.00E+00 6.10E-02 Cs-134 <4.00E-02 0.00E+00 4.00E-02 Cs-137 <5.37E-02 0.00E+00 5.37E-02 Be-7 <2.46E-01 0.00E+00 2.46E-01 K-40 1.49E+00 2.98E-01 5.12E-01 Sample ID: 276465 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.70E-02 0.00E+00 4.70E-02 Cs-134 <3.23E-02 0.00E+00 3.23E-02 Cs-137 <4.89E-02 0.00E+00 4.89E-02 Be-7 <1.63E-01 0.00E+00 1.63E-01 K-40 <1.16E+00 0.00E+00 1.16E+00 Sample ID: 277381 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.94E-02 0.00E+00 3.94E-02 Cs-134 <4.67E-02 0.00E+00 4.67E-02 Cs-137 <4.60E-02 0.00E+00 4.60E-02 Be-7 <2.86E-01 0.00E+00 2.86E-01 K-40 1.36E+00 2.84E-01 4.25E-01 Sample ID: 278713 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.13E-02 0.00E+00 3.13E-02 Cs-134 <4.20E-02 0.00E+00 4.20E-02 Cs-137 <4.44E-02 0.00E+00 4.44E-02 Be-7 <3.41E-01 0.00E+00 3.41E-01 K-40 <1.20E+00 0.00E+00 1.20E+00 Sample ID: 278986 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.50E-02 0.00E+00 5.50E-02 Cs-134 <4.17E-02 0.00E+00 4.17E-02 Cs-137 <3.60E-02 0.00E+00 3.60E-02 Be-7 <3.12E-01 0.00E+00 3.12E-01 K-40 <1.29E+00 0.00E+00 1.29E+00 Sample ID: 279632 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.90E-02 0.00E+00 2.90E-02 Cs-134 <2.33E-02 0.00E+00 2.33E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 1.28E-01 4.35E-02 1.42E-01 K-40 1.27E+00 1.79E-01 1.86E-01 Sample ID: 280110 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.60E-02 0.00E+00 3.60E-02 Cs-134 <3.92E-02 0.00E+00 3.92E-02 Cs-137 <3.90E-02 0.00E+00 3.90E-02 Be-7 <2.73E-01 0.00E+00 2.73E-01 K-40 7.17E-01 2.58E-01 4.43E-01 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 249841 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.77E-02 0.00E+00 6.77E-02 Cs-134 <3.42E-02 0.00E+00 3.42E-02 Cs-137 <2.84E-02 0.00E+00 2.84E-02 Be-7 <2.22E-01 0.00E+00 2.22E-01 K-40 8.33E-01 2.56E-01 4.55E-01 Sample ID: 250663 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.55E-02 0.00E+00 2.55E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <4.09E-02 0.00E+00 4.09E-02 Be-7 <2.43E-01 0.00E+00 2.43E-01 K-40 6.44E-01 1.79E-01 3.66E-01 Sample ID: 250810 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.81E-02 0.00E+00 3.81E-02 Cs-134 <2.57E-02 0.00E+00 2.57E-02 Cs-137 <3.11E-02 0.00E+00 3.11E-02 Be-7 <1.95E-01 0.00E+00 1.95E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 30 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 250810 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD K-40 1.03E+00 2.20E-01 3.54E-01 Sample ID: 251142 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.09E-02 0.00E+00 3.09E-02 Cs-134 <2.16E-02 0.00E+00 2.16E-02 Cs-137 <2.29E-02 0.00E+00 2.29E-02 Be-7 <2.00E-01 0.00E+00 2.00E-01 K-40 <7.10E-01 0.00E+00 7.10E-01 Sample ID: 251296 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.35E-02 0.00E+00 1.35E-02 Cs-134 <1.59E-02 0.00E+00 1.59E-02 Cs-137 <2.51E-02 0.00E+00 2.51E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 7.30E-01 1.77E-01 3.66E-01 Sample ID: 251314 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.33E-02 0.00E+00 3.33E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 8.26E-01 1.40E-01 2.19E-01 Sample ID: 251619 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.68E-02 0.00E+00 2.68E-02 Cs-134 <2.49E-02 0.00E+00 2.49E-02 Cs-137 <3.68E-02 0.00E+00 3.68E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 9.78E-01 2.08E-01 1.20E-01 Sample ID: 252085 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.16E-02 0.00E+00 3.16E-02 Cs-134 <1.78E-02 0.00E+00 1.78E-02 Cs-137 <2.80E-02 0.00E+00 2.80E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 4.70E-01 1.78E-01 4.59E-01 Sample ID: 252714 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.95E-02 0.00E+00 2.95E-02 Cs-134 <2.15E-02 0.00E+00 2.15E-02 Cs-137 <1.33E-02 0.00E+00 1.33E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 4.57E-01 1.71E-01 7.81E-02 Sample ID: 253094 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.31E-02 0.00E+00 3.31E-02 Cs-134 <3.36E-02 0.00E+00 3.36E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <2.23E-01 0.00E+00 2.23E-01 K-40 1.09E+00 2.32E-01 3.48E-01 Sample ID: 253897 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <2.85E-02 0.00E+00 2.85E-02 Cs-137 <1.96E-02 0.00E+00 1.96E-02 Be-7 <2.50E-01 0.00E+00 2.50E-01 K-40 9.38E-01 2.15E-01 5.64E-01 Sample ID: 254219 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.36E-02 0.00E+00 3.36E-02 Cs-134 <6.05E-03 0.00E+00 6.05E-03 Cs-137 <3.96E-02 0.00E+00 3.96E-02 Be-7 <2.57E-01 0.00E+00 2.57E-01 K-40 <9.33E-01 0.00E+00 9.33E-01 Sample ID: 254754 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.64E-02 0.00E+00 2.64E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <1.98E-02 0.00E+00 1.98E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 31 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 254754 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 7.65E-01 1.47E-01 2.05E-01 Sample ID: 255315 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.16E-02 0.00E+00 3.16E-02 Cs-134 <3.35E-02 0.00E+00 3.35E-02 Cs-137 <3.19E-02 0.00E+00 3.19E-02 Be-7 <1.77E-01 0.00E+00 1.77E-01 K-40 1.06E+00 2.80E-01 4.50E-01 Sample ID: 255843 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.02E-02 0.00E+00 2.02E-02 Cs-134 <1.91E-02 0.00E+00 1.91E-02 Cs-137 <2.83E-02 0.00E+00 2.83E-02 Be-7 <1.78E-01 0.00E+00 1.78E-01 K-40 8.17E-01 1.78E-01 1.05E-01 Sample ID: 256077 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.52E-02 0.00E+00 2.52E-02 Cs-134 <2.26E-02 0.00E+00 2.26E-02 Cs-137 <1.86E-02 0.00E+00 1.86E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 1.13E+00 1.81E-01 2.61E-01 Sample ID: 256355 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.81E-02 0.00E+00 2.81E-02 Cs-134 <2.03E-02 0.00E+00 2.03E-02 Cs-137 <2.34E-02 0.00E+00 2.34E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 1.28E+00 2.84E-01 1.24E-01 Sample ID: 257145 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.92E-02 0.00E+00 2.92E-02 Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 8.06E-01 2.06E-01 2.79E-01 Sample ID: 257301 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.33E-02 0.00E+00 3.33E-02 Cs-134 <2.11E-02 0.00E+00 2.11E-02 Cs-137 <2.65E-02 0.00E+00 2.65E-02 Be-7 <2.13E-01 0.00E+00 2.13E-01 K-40 9.70E-01 2.08E-01 2.20E-01 Sample ID: 257748 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.61E-02 0.00E+00 3.61E-02 Cs-134 <2.79E-02 0.00E+00 2.79E-02 Cs-137 <3.84E-02 0.00E+00 3.84E-02 Be-7 <2.11E-01 0.00E+00 2.11E-01 K-40 1.08E+00 2.35E-01 1.38E-01 Sample ID: 257992 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.78E-02 0.00E+00 2.78E-02 Cs-134 <1.59E-02 0.00E+00 1.59E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.78E-01 0.00E+00 1.78E-01 K-40 6.96E-01 1.69E-01 2.67E-01 Sample ID: 258227 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.32E-02 0.00E+00 5.32E-02 Cs-134 <2.42E-02 0.00E+00 2.42E-02 Cs-137 <4.18E-02 0.00E+00 4.18E-02 Be-7 <2.91E-01 0.00E+00 2.91E-01 K-40 5.59E-01 3.38E-01 4.58E-01 Sample ID: 258574 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.64E-02 0.00E+00 5.64E-02 Cs-134 <3.39E-02 0.00E+00 3.39E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 32 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 258574 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <5.08E-02 0.00E+00 5.08E-02 Be-7 <2.95E-01 0.00E+00 2.95E-01 K-40 1.16E+00 2.65E-01 7.55E-01 Sample ID: 259050 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <2.56E-02 0.00E+00 2.56E-02 Be-7 <1.79E-01 0.00E+00 1.79E-01 K-40 9.82E-01 1.57E-01 2.25E-01 Sample ID: 259598 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <2.05E-02 0.00E+00 2.05E-02 Cs-137 <2.43E-02 0.00E+00 2.43E-02 Be-7 <2.00E-01 0.00E+00 2.00E-01 K-40 1.38E+00 2.18E-01 2.53E-01 Sample ID: 260232 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.79E-02 0.00E+00 4.79E-02 Cs-134 <3.60E-02 0.00E+00 3.60E-02 Cs-137 <4.66E-02 0.00E+00 4.66E-02 Be-7 <2.69E-01 0.00E+00 2.69E-01 K-40 5.00E-01 2.54E-01 5.85E-01 Sample ID: 260692 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.69E-02 0.00E+00 2.69E-02 Cs-134 <1.89E-02 0.00E+00 1.89E-02 Cs-137 <2.71E-02 0.00E+00 2.71E-02 Be-7 <1.63E-01 0.00E+00 1.63E-01 K-40 8.93E-01 2.04E-01 3.05E-01 Sample ID: 261655 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.52E-02 0.00E+00 2.52E-02 Cs-134 <1.49E-02 0.00E+00 1.49E-02 Cs-137 <1.71E-02 0.00E+00 1.71E-02 Be-7 <1.83E-01 0.00E+00 1.83E-01 K-40 9.65E-01 2.06E-01 1.18E-01 Sample ID: 262157 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.29E-02 0.00E+00 2.29E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-137 <2.14E-02 0.00E+00 2.14E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 1.35E+00 1.89E-01 1.91E-01 Sample ID: 263163 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.66E-02 0.00E+00 2.66E-02 Cs-134 <2.17E-02 0.00E+00 2.17E-02 Cs-137 <2.94E-02 0.00E+00 2.94E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 1.10E+00 1.78E-01 2.60E-01 Sample ID: 263390 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.86E-02 0.00E+00 2.86E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <3.87E-02 0.00E+00 3.87E-02 Be-7 <1.90E-01 0.00E+00 1.90E-01 K-40 7.71E-01 1.99E-01 1.39E-01 Sample ID: 264048 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.32E-02 0.00E+00 2.32E-02 Cs-134 <2.22E-02 0.00E+00 2.22E-02 Cs-137 <2.42E-02 0.00E+00 2.42E-02 Be-7 <1.72E-01 0.00E+00 1.72E-01 K-40 1.00E+00 2.10E-01 2.83E-01 Sample ID: 265179 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.62E-02 0.00E+00 5.62E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 33 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 265179 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <3.60E-02 0.00E+00 3.60E-02 Cs-137 <4.74E-02 0.00E+00 4.74E-02 Be-7 <3.10E-01 0.00E+00 3.10E-01 K-40 1.40E+00 2.93E-01 5.81E-01 Sample ID: 265488 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.70E-02 0.00E+00 2.70E-02 Cs-134 <2.85E-02 0.00E+00 2.85E-02 Cs-137 <3.20E-02 0.00E+00 3.20E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 5.56E-01 1.60E-01 4.10E-01 Sample ID: 267174 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.84E-02 0.00E+00 4.84E-02 Cs-134 <2.56E-02 0.00E+00 2.56E-02 Cs-137 <3.81E-02 0.00E+00 3.81E-02 Be-7 <2.39E-01 0.00E+00 2.39E-01 K-40 4.29E-01 1.52E-01 1.45E-01 Sample ID: 267647 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.96E-02 0.00E+00 4.96E-02 Cs-134 <3.75E-02 0.00E+00 3.75E-02 Cs-137 <5.42E-02 0.00E+00 5.42E-02 Be-7 <3.76E-01 0.00E+00 3.76E-01 K-40 1.22E+00 2.95E-01 5.17E-01 Sample ID: 268483 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.71E-02 0.00E+00 5.71E-02 Cs-134 <4.38E-02 0.00E+00 4.38E-02 Cs-137 <3.90E-02 0.00E+00 3.90E-02 Be-7 <3.85E-01 0.00E+00 3.85E-01 K-40 <9.72E-01 0.00E+00 9.72E-01 Sample ID: 269643 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.24E-02 0.00E+00 3.24E-02 Cs-134 <2.54E-02 0.00E+00 2.54E-02 Cs-137 <6.78E-03 0.00E+00 6.78E-03 Be-7 <1.91E-01 0.00E+00 1.91E-01 K-40 6.62E-01 2.08E-01 3.87E-01 Sample ID: 270745 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.26E-02 0.00E+00 5.26E-02 Cs-134 <3.62E-02 0.00E+00 3.62E-02 Cs-137 <5.75E-02 0.00E+00 5.75E-02 Be-7 <2.38E-01 0.00E+00 2.38E-01 K-40 1.42E+00 3.51E-01 5.23E-01 Sample ID: 271470 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.96E-02 0.00E+00 5.96E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <4.76E-02 0.00E+00 4.76E-02 Be-7 <3.72E-01 0.00E+00 3.72E-01 K-40 1.47E+00 3.00E-01 4.41E-01 Sample ID: 272077 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.76E-02 0.00E+00 4.76E-02 Cs-134 <4.73E-02 0.00E+00 4.73E-02 Cs-137 <3.54E-02 0.00E+00 3.54E-02 Be-7 <3.06E-01 0.00E+00 3.06E-01 K-40 8.99E-01 2.75E-01 4.94E-01 Sample ID: 272460 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.46E-02 0.00E+00 1.46E-02 Cs-134 <2.24E-02 0.00E+00 2.24E-02 Cs-137 <3.18E-02 0.00E+00 3.18E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 7.90E-01 1.81E-01 3.12E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 34 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] 2 Sample ID: 272860 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.79E-02 0.00E+00 3.79E-02 Cs-134 <3.17E-02 0.00E+00 3.17E-02 Cs-137 <3.44E-02 0.00E+00 3.44E-02 Be-7 <2.60E-01 0.00E+00 2.60E-01 K-40 7.48E-01 1.93E-01 1.35E-01 Sample ID: 273951 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.98E-02 0.00E+00 2.98E-02 Cs-134 <3.04E-02 0.00E+00 3.04E-02 Cs-137 <3.01E-02 0.00E+00 3.01E-02 Be-7 <2.20E-01 0.00E+00 2.20E-01 K-40 9.16E-01 2.05E-01 1.24E-01 Sample ID: 274398 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.99E-02 0.00E+00 4.99E-02 Cs-134 <3.47E-02 0.00E+00 3.47E-02 Cs-137 <4.19E-02 0.00E+00 4.19E-02 Be-7 <3.04E-01 0.00E+00 3.04E-01 K-40 6.12E-01 3.77E-01 8.74E-01 Sample ID: 274912 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.70E-02 0.00E+00 4.70E-02 Cs-134 <3.64E-02 0.00E+00 3.64E-02 Cs-137 <3.09E-02 0.00E+00 3.09E-02 Be-7 <3.15E-01 0.00E+00 3.15E-01 K-40 8.45E-01 2.26E-01 6.64E-01 Sample ID: 276466 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.06E-02 0.00E+00 3.06E-02 Cs-134 <2.45E-02 0.00E+00 2.45E-02 Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 5.81E-01 2.25E-01 3.60E-01 Sample ID: 277382 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <1.92E-02 0.00E+00 1.92E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.61E-01 0.00E+00 1.61E-01 K-40 1.31E+00 1.81E-01 6.79E-02 Sample ID: 278714 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.33E-02 0.00E+00 4.33E-02 Cs-134 <4.01E-02 0.00E+00 4.01E-02 Cs-137 <3.62E-02 0.00E+00 3.62E-02 Be-7 <3.42E-01 0.00E+00 3.42E-01 K-40 7.57E-01 2.66E-01 1.65E-01 Sample ID: 278987 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.90E-02 0.00E+00 4.90E-02 Cs-134 <4.21E-02 0.00E+00 4.21E-02 Cs-137 <3.89E-02 0.00E+00 3.89E-02 Be-7 <3.94E-01 0.00E+00 3.94E-01 K-40 5.87E-01 2.55E-01 1.61E-01 Sample ID: 279633 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.46E-02 0.00E+00 3.46E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <2.60E-02 0.00E+00 2.60E-02 Be-7 <4.94E-02 0.00E+00 4.94E-02 K-40 7.06E-01 1.89E-01 4.50E-01 Sample ID: 280111 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.88E-02 0.00E+00 2.88E-02 Cs-134 <3.25E-02 0.00E+00 3.25E-02 Cs-137 <3.04E-02 0.00E+00 3.04E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 <1.03E+00 0.00E+00 1.03E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 35 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 249842 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.78E-02 0.00E+00 3.78E-02 Cs-134 <1.98E-02 0.00E+00 1.98E-02 Cs-137 <3.07E-02 0.00E+00 3.07E-02 Be-7 <1.88E-01 0.00E+00 1.88E-01 K-40 5.75E-01 1.54E-01 3.05E-01 Sample ID: 250664 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 8.60E-01 1.92E-01 1.16E-01 Sample ID: 250812 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <2.19E-02 0.00E+00 2.19E-02 Cs-137 <2.33E-02 0.00E+00 2.33E-02 Be-7 <1.73E-01 0.00E+00 1.73E-01 K-40 <7.48E-01 0.00E+00 7.48E-01 Sample ID: 251143 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.91E-02 0.00E+00 2.91E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <2.58E-02 0.00E+00 2.58E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 6.16E-01 1.31E-01 2.59E-01 Sample ID: 251315 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <2.24E-02 0.00E+00 2.24E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 8.94E-01 1.58E-01 2.96E-01 Sample ID: 251620 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.64E-02 0.00E+00 2.64E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <3.25E-02 0.00E+00 3.25E-02 Be-7 <1.17E-01 0.00E+00 1.17E-01 K-40 5.50E-01 1.85E-01 2.12E-01 Sample ID: 252086 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.99E-02 0.00E+00 2.99E-02 Cs-134 <2.29E-02 0.00E+00 2.29E-02 Cs-137 <2.97E-02 0.00E+00 2.97E-02 Be-7 <7.29E-02 0.00E+00 7.29E-02 K-40 7.89E-01 1.81E-01 1.12E-01 Sample ID: 252715 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.04E-02 0.00E+00 3.04E-02 Cs-134 <2.80E-02 0.00E+00 2.80E-02 Cs-137 <2.91E-02 0.00E+00 2.91E-02 Be-7 <2.11E-01 0.00E+00 2.11E-01 K-40 6.66E-01 1.78E-01 1.29E-01 Sample ID: 253095 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.88E-02 0.00E+00 2.88E-02 Cs-134 <2.38E-02 0.00E+00 2.38E-02 Cs-137 <3.54E-02 0.00E+00 3.54E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 5.46E-01 2.36E-01 4.61E-01 Sample ID: 253898 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <2.73E-02 0.00E+00 2.73E-02 Cs-137 <3.62E-02 0.00E+00 3.62E-02 Be-7 <1.88E-01 0.00E+00 1.88E-01 K-40 9.13E-01 1.95E-01 1.12E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 36 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 254220 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <2.44E-02 0.00E+00 2.44E-02 Cs-137 <2.35E-02 0.00E+00 2.35E-02 Be-7 <1.88E-01 0.00E+00 1.88E-01 K-40 8.69E-01 1.90E-01 1.12E-01 Sample ID: 254755 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.91E-02 0.00E+00 2.91E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <2.17E-02 0.00E+00 2.17E-02 Be-7 <1.89E-01 0.00E+00 1.89E-01 K-40 8.41E-01 2.16E-01 3.72E-01 Sample ID: 255316 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.48E-02 0.00E+00 2.48E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <2.06E-02 0.00E+00 2.06E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 1.01E+00 1.60E-01 2.68E-01 Sample ID: 255844 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.19E-02 0.00E+00 2.19E-02 Cs-134 <2.02E-02 0.00E+00 2.02E-02 Cs-137 <2.46E-02 0.00E+00 2.46E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 1.15E+00 1.84E-01 7.95E-02 Sample ID: 256078 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.56E-02 0.00E+00 5.56E-02 Cs-134 <3.82E-02 0.00E+00 3.82E-02 Cs-137 <2.94E-02 0.00E+00 2.94E-02 Be-7 <3.83E-01 0.00E+00 3.83E-01 K-40 1.09E+00 2.80E-01 5.30E-01 Sample ID: 256356 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.87E-02 0.00E+00 2.87E-02 Cs-134 <2.95E-02 0.00E+00 2.95E-02 Cs-137 <2.93E-02 0.00E+00 2.93E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 8.42E-01 1.88E-01 1.14E-01 Sample ID: 257146 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.00E-02 0.00E+00 3.00E-02 Cs-134 <2.15E-02 0.00E+00 2.15E-02 Cs-137 <1.56E-02 0.00E+00 1.56E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 5.23E-01 1.45E-01 1.09E-01 Sample ID: 257302 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.98E-02 0.00E+00 1.98E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.15E-02 0.00E+00 2.15E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 4.40E-01 1.31E-01 2.32E-01 Sample ID: 257749 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.51E-02 0.00E+00 2.51E-02 Cs-134 <2.24E-02 0.00E+00 2.24E-02 Cs-137 <2.81E-02 0.00E+00 2.81E-02 Be-7 <1.71E-01 0.00E+00 1.71E-01 K-40 1.01E+00 2.02E-01 1.10E-01 Sample ID: 257993 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.24E-02 0.00E+00 1.24E-02 Cs-137 <2.57E-02 0.00E+00 2.57E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 4.95E-01 1.38E-01 2.87E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 37 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 258228 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.43E-02 0.00E+00 3.43E-02 Cs-134 <3.61E-02 0.00E+00 3.61E-02 Cs-137 <3.98E-02 0.00E+00 3.98E-02 Be-7 <3.06E-01 0.00E+00 3.06E-01 K-40 1.01E+00 3.10E-01 7.04E-01 Sample ID: 258575 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.67E-02 0.00E+00 4.67E-02 Cs-134 <4.20E-02 0.00E+00 4.20E-02 Cs-137 <4.50E-02 0.00E+00 4.50E-02 Be-7 <4.02E-01 0.00E+00 4.02E-01 K-40 5.09E-01 2.91E-01 4.28E-01 Sample ID: 259051 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.87E-02 0.00E+00 1.87E-02 Cs-134 <2.34E-02 0.00E+00 2.34E-02 Cs-137 <2.41E-02 0.00E+00 2.41E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 1.03E+00 1.55E-01 2.09E-01 Sample ID: 259599 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <2.28E-02 0.00E+00 2.28E-02 Cs-137 <3.51E-02 0.00E+00 3.51E-02 Be-7 <1.97E-01 0.00E+00 1.97E-01 K-40 <1.03E+00 0.00E+00 1.03E+00 Sample ID: 260233 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.44E-02 0.00E+00 3.44E-02 Cs-134 <2.46E-02 0.00E+00 2.46E-02 Cs-137 <2.31E-02 0.00E+00 2.31E-02 Be-7 <2.87E-01 0.00E+00 2.87E-01 K-40 <1.17E+00 0.00E+00 1.17E+00 Sample ID: 260693 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.80E-02 0.00E+00 2.80E-02 Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.82E-01 0.00E+00 1.82E-01 K-40 6.53E-01 1.63E-01 1.10E-01 Sample ID: 261656 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.48E-02 0.00E+00 2.48E-02 Cs-134 <2.73E-02 0.00E+00 2.73E-02 Cs-137 <2.60E-02 0.00E+00 2.60E-02 Be-7 <1.68E-01 0.00E+00 1.68E-01 K-40 9.93E-01 1.63E-01 2.40E-01 Sample ID: 262158 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.32E-02 0.00E+00 2.32E-02 Cs-134 <2.31E-02 0.00E+00 2.31E-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 <9.15E-01 0.00E+00 9.15E-01 Sample ID: 263164 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.97E-02 0.00E+00 2.97E-02 Cs-134 <2.23E-02 0.00E+00 2.23E-02 Cs-137 <3.05E-02 0.00E+00 3.05E-02 Be-7 <2.04E-01 0.00E+00 2.04E-01 K-40 7.32E-01 1.78E-01 3.04E-01 Sample ID: 263391 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <2.18E-02 0.00E+00 2.18E-02 Cs-137 <5.81E-03 0.00E+00 5.81E-03 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 7.50E-01 2.38E-01 3.79E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 38 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 264049 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <2.39E-02 0.00E+00 2.39E-02 Cs-137 <2.34E-02 0.00E+00 2.34E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 <6.51E-01 0.00E+00 6.51E-01 Sample ID: 265180 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.71E-02 0.00E+00 5.71E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <3.79E-02 0.00E+00 3.79E-02 Be-7 <2.24E-01 0.00E+00 2.24E-01 K-40 <1.24E+00 0.00E+00 1.24E+00 Sample ID: 265489 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.73E-02 0.00E+00 5.73E-02 Cs-134 <3.19E-02 0.00E+00 3.19E-02 Cs-137 <2.91E-02 0.00E+00 2.91E-02 Be-7 <2.23E-01 0.00E+00 2.23E-01 K-40 9.69E-01 2.35E-01 7.05E-01 Sample ID: 267175 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.17E-02 0.00E+00 5.17E-02 Cs-134 <2.57E-02 0.00E+00 2.57E-02 Cs-137 <3.18E-02 0.00E+00 3.18E-02 Be-7 <2.81E-01 0.00E+00 2.81E-01 K-40 6.81E-01 2.29E-01 1.35E-01 Sample ID: 267648 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.61E-02 0.00E+00 4.61E-02 Cs-134 <4.59E-02 0.00E+00 4.59E-02 Cs-137 <4.25E-02 0.00E+00 4.25E-02 Be-7 <3.40E-01 0.00E+00 3.40E-01 K-40 9.98E-01 2.58E-01 7.83E-01 Sample ID: 268484 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.40E-02 0.00E+00 4.40E-02 Cs-134 <3.62E-02 0.00E+00 3.62E-02 Cs-137 <3.76E-02 0.00E+00 3.76E-02 Be-7 <2.72E-01 0.00E+00 2.72E-01 K-40 <1.38E+00 0.00E+00 1.38E+00 Sample ID: 269644 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.10E-02 0.00E+00 3.10E-02 Cs-134 <3.88E-02 0.00E+00 3.88E-02 Cs-137 <3.38E-02 0.00E+00 3.38E-02 Be-7 <2.92E-01 0.00E+00 2.92E-01 K-40 <1.16E+00 0.00E+00 1.16E+00 Sample ID: 270746 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.97E-02 0.00E+00 3.97E-02 Cs-134 <3.78E-02 0.00E+00 3.78E-02 Cs-137 <4.08E-02 0.00E+00 4.08E-02 Be-7 <2.10E-01 0.00E+00 2.10E-01 K-40 1.09E+00 2.51E-01 4.17E-01 Sample ID: 271471 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.75E-02 0.00E+00 4.75E-02 Cs-134 <3.04E-02 0.00E+00 3.04E-02 Cs-137 <3.36E-02 0.00E+00 3.36E-02 Be-7 <2.95E-01 0.00E+00 2.95E-01 K-40 7.95E-01 2.12E-01 5.96E-01 Sample ID: 272078 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.41E-02 0.00E+00 4.41E-02 Cs-134 <3.44E-02 0.00E+00 3.44E-02 Cs-137 <3.27E-02 0.00E+00 3.27E-02 Be-7 <3.44E-01 0.00E+00 3.44E-01 K-40 7.86E-01 2.66E-01 6.21E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 39 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 272461 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.74E-02 0.00E+00 3.74E-02 Cs-134 <3.73E-02 0.00E+00 3.73E-02 Cs-137 <2.92E-02 0.00E+00 2.92E-02 Be-7 <2.81E-01 0.00E+00 2.81E-01 K-40 1.18E+00 2.58E-01 4.09E-01 Sample ID: 272861 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.05E-02 0.00E+00 3.05E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <2.20E-02 0.00E+00 2.20E-02 Be-7 <6.89E-02 0.00E+00 6.89E-02 K-40 <7.90E-01 0.00E+00 7.90E-01 Sample ID: 273952 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <2.64E-02 0.00E+00 2.64E-02 Cs-137 <3.15E-02 0.00E+00 3.15E-02 Be-7 <2.39E-01 0.00E+00 2.39E-01 K-40 9.23E-01 2.06E-01 1.25E-01 Sample ID: 274399 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.09E-02 0.00E+00 5.09E-02 Cs-134 <2.81E-02 0.00E+00 2.81E-02 Cs-137 <4.43E-02 0.00E+00 4.43E-02 Be-7 <3.01E-01 0.00E+00 3.01E-01 K-40 7.47E-01 2.57E-01 8.15E-01 Sample ID: 274913 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.78E-02 0.00E+00 2.78E-02 Cs-134 <3.03E-02 0.00E+00 3.03E-02 Cs-137 <4.19E-02 0.00E+00 4.19E-02 Be-7 <3.19E-01 0.00E+00 3.19E-01 K-40 8.37E-01 2.16E-01 4.01E-01 Sample ID: 276467 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.63E-02 0.00E+00 2.63E-02 Cs-134 <1.09E-02 0.00E+00 1.09E-02 Cs-137 <1.22E-02 0.00E+00 1.22E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 9.32E-01 9.45E-02 1.78E-01 Sample ID: 277383 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.62E-02 0.00E+00 1.62E-02 Cs-134 <1.92E-02 0.00E+00 1.92E-02 Cs-137 <1.66E-02 0.00E+00 1.66E-02 Be-7 <2.14E-01 0.00E+00 2.14E-01 K-40 7.10E-01 1.72E-01 3.00E-01 Sample ID: 278715 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.22E-02 0.00E+00 3.22E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <3.73E-02 0.00E+00 3.73E-02 Be-7 <3.04E-01 0.00E+00 3.04E-01 K-40 8.96E-01 2.71E-01 5.31E-01 Sample ID: 278988 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.81E-02 0.00E+00 2.81E-02 Cs-134 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <2.34E-02 0.00E+00 2.34E-02 Be-7 <8.76E-02 0.00E+00 8.76E-02 K-40 6.55E-01 1.55E-01 6.81E-02 Sample ID: 279634 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.07E-02 0.00E+00 3.07E-02 Cs-134 <2.88E-02 0.00E+00 2.88E-02 Cs-137 <2.22E-02 0.00E+00 2.22E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 <6.76E-01 0.00E+00 6.76E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 40 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] 4 Sample ID: 280112 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.32E-02 0.00E+00 4.32E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <4.25E-02 0.00E+00 4.25E-02 Be-7 <2.18E-01 0.00E+00 2.18E-01 K-40 1.16E+00 2.54E-01 1.50E-01 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 249843 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.79E-02 0.00E+00 5.79E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <2.81E-02 0.00E+00 2.81E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 7.77E-01 1.62E-01 3.05E-01 Sample ID: 250665 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.23E-02 0.00E+00 2.23E-02 Cs-134 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <2.88E-02 0.00E+00 2.88E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 5.66E-01 1.57E-01 1.18E-01 Sample ID: 250814 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.07E-02 0.00E+00 4.07E-02 Cs-134 <3.49E-02 0.00E+00 3.49E-02 Cs-137 <3.42E-02 0.00E+00 3.42E-02 Be-7 <2.67E-01 0.00E+00 2.67E-01 K-40 7.72E-01 1.93E-01 4.33E-01 Sample ID: 251144 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.69E-02 0.00E+00 3.69E-02 Cs-134 <4.13E-02 0.00E+00 4.13E-02 Cs-137 <3.16E-02 0.00E+00 3.16E-02 Be-7 <2.81E-01 0.00E+00 2.81E-01 K-40 <1.06E+00 0.00E+00 1.06E+00 Sample ID: 251298 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.09E-02 0.00E+00 3.09E-02 Cs-134 <2.55E-02 0.00E+00 2.55E-02 Cs-137 <2.91E-02 0.00E+00 2.91E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 9.37E-01 1.63E-01 2.98E-01 Sample ID: 251316 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.81E-02 0.00E+00 2.81E-02 Cs-134 <1.70E-02 0.00E+00 1.70E-02 Cs-137 <3.07E-02 0.00E+00 3.07E-02 Be-7 <1.89E-01 0.00E+00 1.89E-01 K-40 1.08E+00 1.81E-01 2.22E-01 Sample ID: 251621 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.30E-02 0.00E+00 3.30E-02 Cs-134 <2.31E-02 0.00E+00 2.31E-02 Cs-137 <3.32E-02 0.00E+00 3.32E-02 Be-7 <2.66E-01 0.00E+00 2.66E-01 K-40 8.08E-01 2.02E-01 1.36E-01 Sample ID: 252087 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.00E-02 0.00E+00 2.00E-02 Cs-134 <1.74E-02 0.00E+00 1.74E-02 Cs-137 <2.42E-02 0.00E+00 2.42E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 7.66E-01 1.50E-01 2.46E-01 Sample ID: 252716 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <1.84E-02 0.00E+00 1.84E-02 Be-7 <1.52E-01 0.00E+00 1.52E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 41 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 252716 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD K-40 5.78E-01 2.26E-01 2.64E-01 Sample ID: 253096 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.89E-02 0.00E+00 1.89E-02 Cs-137 <2.79E-02 0.00E+00 2.79E-02 Be-7 <1.80E-01 0.00E+00 1.80E-01 K-40 7.84E-01 2.28E-01 2.64E-01 Sample ID: 253899 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.45E-02 0.00E+00 2.45E-02 Cs-134 <2.38E-02 0.00E+00 2.38E-02 Cs-137 <2.80E-02 0.00E+00 2.80E-02 Be-7 <1.18E-01 0.00E+00 1.18E-01 K-40 6.99E-01 1.46E-01 2.22E-01 Sample ID: 254221 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.31E-02 0.00E+00 2.31E-02 Cs-134 <2.17E-02 0.00E+00 2.17E-02 Cs-137 <3.57E-02 0.00E+00 3.57E-02 Be-7 <2.03E-01 0.00E+00 2.03E-01 K-40 8.75E-01 1.62E-01 2.83E-01 Sample ID: 254756 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.64E-02 0.00E+00 4.64E-02 Cs-134 <2.64E-02 0.00E+00 2.64E-02 Cs-137 <3.14E-02 0.00E+00 3.14E-02 Be-7 <2.15E-01 0.00E+00 2.15E-01 K-40 8.07E-01 2.02E-01 3.67E-01 Sample ID: 255317 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.63E-02 0.00E+00 2.63E-02 Cs-134 <2.43E-02 0.00E+00 2.43E-02 Cs-137 <2.73E-02 0.00E+00 2.73E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 9.53E-01 1.71E-01 2.29E-01 Sample ID: 255845 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <2.07E-02 0.00E+00 2.07E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 6.77E-01 1.64E-01 3.49E-01 Sample ID: 256079 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.74E-02 0.00E+00 2.74E-02 Cs-134 <2.17E-02 0.00E+00 2.17E-02 Cs-137 <2.82E-02 0.00E+00 2.82E-02 Be-7 <1.86E-01 0.00E+00 1.86E-01 K-40 1.01E+00 2.08E-01 3.06E-01 Sample ID: 256357 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <1.83E-02 0.00E+00 1.83E-02 Cs-137 <2.97E-02 0.00E+00 2.97E-02 Be-7 <1.75E-01 0.00E+00 1.75E-01 K-40 8.98E-01 2.03E-01 2.84E-01 Sample ID: 257147 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.85E-02 0.00E+00 3.85E-02 Cs-134 <2.54E-02 0.00E+00 2.54E-02 Cs-137 <3.13E-02 0.00E+00 3.13E-02 Be-7 <2.41E-01 0.00E+00 2.41E-01 K-40 8.73E-01 2.58E-01 4.50E-01 Sample ID: 257303 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.67E-02 0.00E+00 2.67E-02 Cs-134 <2.01E-02 0.00E+00 2.01E-02 Cs-137 <2.92E-02 0.00E+00 2.92E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 42 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 257303 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.15E-01 0.00E+00 2.15E-01 K-40 6.52E-01 2.20E-01 5.40E-01 Sample ID: 257750 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.48E-02 0.00E+00 3.48E-02 Cs-134 <2.68E-02 0.00E+00 2.68E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <2.30E-01 0.00E+00 2.30E-01 K-40 3.42E-01 1.96E-01 1.23E-01 Sample ID: 257994 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.17E-02 0.00E+00 2.17E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <2.24E-02 0.00E+00 2.24E-02 Be-7 <1.75E-01 0.00E+00 1.75E-01 K-40 9.71E-01 1.77E-01 8.75E-02 Sample ID: 258229 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.94E-02 0.00E+00 4.94E-02 Cs-134 <4.70E-02 0.00E+00 4.70E-02 Cs-137 <3.46E-02 0.00E+00 3.46E-02 Be-7 <3.24E-01 0.00E+00 3.24E-01 K-40 1.10E+00 2.40E-01 6.51E-01 Sample ID: 258576 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.21E-02 0.00E+00 5.21E-02 Cs-134 <3.62E-02 0.00E+00 3.62E-02 Cs-137 <5.69E-02 0.00E+00 5.69E-02 Be-7 <2.83E-01 0.00E+00 2.83E-01 K-40 1.07E+00 3.11E-01 7.88E-01 Sample ID: 259052 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <1.37E-02 0.00E+00 1.37E-02 Cs-137 <1.30E-02 0.00E+00 1.30E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 <5.62E-01 0.00E+00 5.62E-01 Sample ID: 259600 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.33E-02 0.00E+00 3.33E-02 Cs-134 <4.99E-02 0.00E+00 4.99E-02 Cs-137 <5.90E-02 0.00E+00 5.90E-02 Be-7 <4.23E-01 0.00E+00 4.23E-01 K-40 1.27E+00 3.51E-01 5.04E-01 Sample ID: 260234 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.97E-02 0.00E+00 3.97E-02 Cs-134 <3.96E-02 0.00E+00 3.96E-02 Cs-137 <4.29E-02 0.00E+00 4.29E-02 Be-7 <3.15E-01 0.00E+00 3.15E-01 K-40 8.44E-01 2.34E-01 7.23E-01 Sample ID: 260694 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.54E-02 0.00E+00 3.54E-02 Cs-134 <2.17E-02 0.00E+00 2.17E-02 Cs-137 <3.16E-02 0.00E+00 3.16E-02 Be-7 1.26E-01 7.59E-02 3.18E-02 K-40 8.67E-01 2.24E-01 3.61E-01 Sample ID: 261657 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error 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 <2.34E-02 0.00E+00 2.34E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 8.57E-01 2.47E-01 3.21E-01 Sample ID: 262159 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.61E-02 0.00E+00 2.61E-02 Cs-134 <1.59E-02 0.00E+00 1.59E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 43 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 262159 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.82E-01 0.00E+00 1.82E-01 K-40 6.60E-01 1.79E-01 2.26E-01 Sample ID: 263165 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.60E-02 0.00E+00 2.60E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <2.54E-02 0.00E+00 2.54E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 6.59E-01 1.66E-01 2.58E-01 Sample ID: 263392 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.27E-02 0.00E+00 3.27E-02 Cs-134 <2.81E-02 0.00E+00 2.81E-02 Cs-137 <3.13E-02 0.00E+00 3.13E-02 Be-7 <2.45E-01 0.00E+00 2.45E-01 K-40 9.66E-01 2.16E-01 1.31E-01 Sample ID: 264050 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.18E-02 0.00E+00 2.18E-02 Cs-134 <2.09E-02 0.00E+00 2.09E-02 Cs-137 <1.62E-02 0.00E+00 1.62E-02 Be-7 <1.72E-01 0.00E+00 1.72E-01 K-40 8.93E-01 1.98E-01 2.77E-01 Sample ID: 265181 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.38E-02 0.00E+00 5.38E-02 Cs-134 <2.81E-02 0.00E+00 2.81E-02 Cs-137 <3.53E-02 0.00E+00 3.53E-02 Be-7 <3.14E-01 0.00E+00 3.14E-01 K-40 <1.10E+00 0.00E+00 1.10E+00 Sample ID: 265490 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <2.80E-02 0.00E+00 2.80E-02 Cs-137 <2.72E-02 0.00E+00 2.72E-02 Be-7 <1.86E-01 0.00E+00 1.86E-01 K-40 7.30E-01 1.89E-01 4.31E-01 Sample ID: 267176 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.26E-02 0.00E+00 4.26E-02 Cs-134 <4.09E-02 0.00E+00 4.09E-02 Cs-137 <3.95E-02 0.00E+00 3.95E-02 Be-7 <3.50E-01 0.00E+00 3.50E-01 K-40 7.33E-01 2.03E-01 4.25E-01 Sample ID: 267649 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.90E-02 0.00E+00 4.90E-02 Cs-134 <4.99E-02 0.00E+00 4.99E-02 Cs-137 <4.99E-02 0.00E+00 4.99E-02 Be-7 <2.95E-01 0.00E+00 2.95E-01 K-40 1.58E+00 3.46E-01 5.46E-01 Sample ID: 268485 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.62E-02 0.00E+00 3.62E-02 Cs-134 <3.88E-02 0.00E+00 3.88E-02 Cs-137 <4.01E-02 0.00E+00 4.01E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 1.16E+00 2.72E-01 1.74E-01 Sample ID: 269645 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.92E-02 0.00E+00 2.92E-02 Cs-134 <2.20E-02 0.00E+00 2.20E-02 Cs-137 <1.98E-02 0.00E+00 1.98E-02 Be-7 <2.25E-01 0.00E+00 2.25E-01 K-40 1.20E+00 2.31E-01 3.79E-01 Sample ID: 270747 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.01E-02 0.00E+00 6.01E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 44 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 270747 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <4.01E-02 0.00E+00 4.01E-02 Cs-137 <4.58E-02 0.00E+00 4.58E-02 Be-7 <3.84E-01 0.00E+00 3.84E-01 K-40 1.20E+00 2.76E-01 1.71E-01 Sample ID: 271472 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.56E-02 0.00E+00 5.56E-02 Cs-134 <3.38E-02 0.00E+00 3.38E-02 Cs-137 <2.62E-02 0.00E+00 2.62E-02 Be-7 <3.28E-01 0.00E+00 3.28E-01 K-40 <1.34E+00 0.00E+00 1.34E+00 Sample ID: 272079 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.46E-02 0.00E+00 6.46E-02 Cs-134 <4.26E-02 0.00E+00 4.26E-02 Cs-137 <4.46E-02 0.00E+00 4.46E-02 Be-7 <3.00E-01 0.00E+00 3.00E-01 K-40 8.89E-01 2.80E-01 7.32E-01 Sample ID: 272462 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.98E-02 0.00E+00 2.98E-02 Cs-134 <1.93E-02 0.00E+00 1.93E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.89E-01 0.00E+00 1.89E-01 K-40 1.38E+00 1.96E-01 2.95E-01 Sample ID: 272862 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.66E-02 0.00E+00 2.66E-02 Cs-134 <2.50E-02 0.00E+00 2.50E-02 Cs-137 <2.42E-02 0.00E+00 2.42E-02 Be-7 <1.64E-01 0.00E+00 1.64E-01 K-40 9.84E-01 2.05E-01 7.91E-02 Sample ID: 273953 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.98E-02 0.00E+00 1.98E-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 <1.75E-01 0.00E+00 1.75E-01 K-40 1.48E+00 1.99E-01 1.95E-01 Sample ID: 274400 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.30E-02 0.00E+00 4.30E-02 Cs-134 <4.50E-02 0.00E+00 4.50E-02 Cs-137 <3.90E-02 0.00E+00 3.90E-02 Be-7 <3.55E-01 0.00E+00 3.55E-01 K-40 8.38E-01 2.32E-01 4.63E-01 Sample ID: 274914 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.02E-02 0.00E+00 6.02E-02 Cs-134 <3.39E-02 0.00E+00 3.39E-02 Cs-137 <4.63E-02 0.00E+00 4.63E-02 Be-7 <3.53E-01 0.00E+00 3.53E-01 K-40 1.28E+00 2.87E-01 5.80E-01 Sample ID: 276468 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.88E-02 0.00E+00 3.88E-02 Cs-134 <3.06E-02 0.00E+00 3.06E-02 Cs-137 <4.34E-02 0.00E+00 4.34E-02 Be-7 <2.13E-01 0.00E+00 2.13E-01 K-40 3.45E-01 1.68E-01 3.54E-01 Sample ID: 277384 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.15E-02 0.00E+00 3.15E-02 Cs-134 <2.09E-02 0.00E+00 2.09E-02 Cs-137 <2.24E-02 0.00E+00 2.24E-02 Be-7 <1.96E-01 0.00E+00 1.96E-01 K-40 1.13E+00 2.04E-01 2.59E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 45 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 278716 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.79E-02 0.00E+00 4.79E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <5.08E-02 0.00E+00 5.08E-02 Be-7 <3.72E-01 0.00E+00 3.72E-01 K-40 7.65E-01 3.49E-01 6.17E-01 Sample ID: 278989 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.71E-02 0.00E+00 2.71E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <2.13E-02 0.00E+00 2.13E-02 Be-7 <1.63E-01 0.00E+00 1.63E-01 K-40 1.36E+00 1.98E-01 2.74E-01 Sample ID: 279635 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.34E-02 0.00E+00 3.34E-02 Cs-134 <2.09E-02 0.00E+00 2.09E-02 Cs-137 <3.19E-02 0.00E+00 3.19E-02 Be-7 <2.28E-01 0.00E+00 2.28E-01 K-40 8.87E-01 2.09E-01 1.33E-01 Sample ID: 280113 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <2.11E-02 0.00E+00 2.11E-02 Cs-137 <2.14E-02 0.00E+00 2.14E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 1.27E+00 1.84E-01 2.42E-01 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 249844 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.66E-02 0.00E+00 4.66E-02 Cs-134 <2.66E-02 0.00E+00 2.66E-02 Cs-137 <1.89E-02 0.00E+00 1.89E-02 Be-7 <1.71E-01 0.00E+00 1.71E-01 K-40 5.59E-01 1.61E-01 1.26E-01 Sample ID: 250666 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.86E-02 0.00E+00 2.86E-02 Cs-134 <3.49E-02 0.00E+00 3.49E-02 Cs-137 <3.80E-02 0.00E+00 3.80E-02 Be-7 <2.50E-01 0.00E+00 2.50E-01 K-40 5.51E-01 2.12E-01 1.35E-01 Sample ID: 250811 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.71E-02 0.00E+00 3.71E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <3.38E-02 0.00E+00 3.38E-02 Be-7 <2.10E-01 0.00E+00 2.10E-01 K-40 9.36E-01 2.21E-01 1.40E-01 Sample ID: 251145 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.83E-02 0.00E+00 2.83E-02 Cs-134 <2.81E-02 0.00E+00 2.81E-02 Cs-137 <2.10E-02 0.00E+00 2.10E-02 Be-7 <1.60E-01 0.00E+00 1.60E-01 K-40 6.97E-01 1.80E-01 1.26E-01 Sample ID: 251299 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.76E-02 0.00E+00 3.76E-02 Cs-134 <2.05E-02 0.00E+00 2.05E-02 Cs-137 <3.16E-02 0.00E+00 3.16E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 4.27E-01 1.42E-01 1.28E-01 Sample ID: 251317 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.92E-02 0.00E+00 1.92E-02 Cs-134 <1.83E-02 0.00E+00 1.83E-02 Cs-137 <2.81E-02 0.00E+00 2.81E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 46 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 251317 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD K-40 7.52E-01 1.82E-01 1.20E-01 Sample ID: 251622 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.25E-02 0.00E+00 2.25E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <2.77E-02 0.00E+00 2.77E-02 Be-7 <1.63E-01 0.00E+00 1.63E-01 K-40 7.12E-01 2.25E-01 3.28E-01 Sample ID: 252088 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.60E-02 0.00E+00 2.60E-02 Cs-134 <2.94E-02 0.00E+00 2.94E-02 Cs-137 <2.12E-02 0.00E+00 2.12E-02 Be-7 <1.93E-01 0.00E+00 1.93E-01 K-40 <9.05E-01 0.00E+00 9.05E-01 Sample ID: 252717 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.25E-02 0.00E+00 3.25E-02 Cs-134 <2.47E-02 0.00E+00 2.47E-02 Cs-137 <3.07E-02 0.00E+00 3.07E-02 Be-7 <1.80E-01 0.00E+00 1.80E-01 K-40 9.13E-01 1.61E-01 2.99E-01 Sample ID: 253097 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.44E-02 0.00E+00 3.44E-02 Cs-134 <2.63E-02 0.00E+00 2.63E-02 Cs-137 <2.78E-02 0.00E+00 2.78E-02 Be-7 <1.87E-01 0.00E+00 1.87E-01 K-40 1.15E+00 1.84E-01 3.42E-01 Sample ID: 253900 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.86E-02 0.00E+00 1.86E-02 Cs-134 <1.63E-02 0.00E+00 1.63E-02 Cs-137 <2.09E-02 0.00E+00 2.09E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 <7.44E-01 0.00E+00 7.44E-01 Sample ID: 254222 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.86E-02 0.00E+00 2.86E-02 Cs-134 <2.46E-02 0.00E+00 2.46E-02 Cs-137 <2.83E-02 0.00E+00 2.83E-02 Be-7 <1.77E-01 0.00E+00 1.77E-01 K-40 1.05E+00 1.74E-01 2.47E-01 Sample ID: 254757 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.49E-02 0.00E+00 3.49E-02 Cs-134 <2.59E-02 0.00E+00 2.59E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <2.50E-01 0.00E+00 2.50E-01 K-40 7.10E-01 1.77E-01 1.20E-01 Sample ID: 255318 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.09E-02 0.00E+00 3.09E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <2.29E-02 0.00E+00 2.29E-02 Be-7 <1.72E-01 0.00E+00 1.72E-01 K-40 7.07E-01 1.72E-01 3.20E-01 Sample ID: 255846 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.29E-02 0.00E+00 4.29E-02 Cs-134 <2.09E-02 0.00E+00 2.09E-02 Cs-137 <3.44E-02 0.00E+00 3.44E-02 Be-7 <1.29E-01 0.00E+00 1.29E-01 K-40 4.51E-01 1.81E-01 5.02E-01 Sample ID: 256080 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.45E-02 0.00E+00 3.45E-02 Cs-134 <2.80E-02 0.00E+00 2.80E-02 Cs-137 <2.94E-02 0.00E+00 2.94E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 47 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 256080 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Be-7 1.52E-01 9.71E-02 1.58E-01 K-40 1.01E+00 1.79E-01 2.88E-01 Sample ID: 256358 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.07E-02 0.00E+00 6.07E-02 Cs-134 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <2.56E-02 0.00E+00 2.56E-02 Be-7 <1.92E-01 0.00E+00 1.92E-01 K-40 1.02E+00 1.55E-01 6.39E-02 Sample ID: 257148 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.42E-02 0.00E+00 2.42E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <1.31E-02 0.00E+00 1.31E-02 Be-7 <1.28E-01 0.00E+00 1.28E-01 K-40 6.17E-01 1.62E-01 2.52E-01 Sample ID: 257317 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.38E-02 0.00E+00 3.38E-02 Cs-134 <2.93E-02 0.00E+00 2.93E-02 Cs-137 <3.22E-02 0.00E+00 3.22E-02 Be-7 1.23E-01 4.66E-02 2.10E-01 K-40 7.30E-01 2.46E-01 5.25E-01 Sample ID: 257764 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.13E-02 0.00E+00 3.13E-02 Cs-134 <2.16E-02 0.00E+00 2.16E-02 Cs-137 <2.68E-02 0.00E+00 2.68E-02 Be-7 <2.05E-01 0.00E+00 2.05E-01 K-40 1.25E+00 1.91E-01 2.15E-01 Sample ID: 258008 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.17E-02 0.00E+00 2.17E-02 Cs-134 <2.01E-02 0.00E+00 2.01E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.67E-01 0.00E+00 1.67E-01 K-40 9.13E-01 1.61E-01 2.56E-01 Sample ID: 258243 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.44E-02 0.00E+00 3.44E-02 Cs-134 <4.04E-02 0.00E+00 4.04E-02 Cs-137 <4.07E-02 0.00E+00 4.07E-02 Be-7 <3.82E-01 0.00E+00 3.82E-01 K-40 1.04E+00 2.45E-01 5.54E-01 Sample ID: 258590 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.81E-02 0.00E+00 5.81E-02 Cs-134 <3.57E-02 0.00E+00 3.57E-02 Cs-137 <3.09E-02 0.00E+00 3.09E-02 Be-7 <3.18E-01 0.00E+00 3.18E-01 K-40 9.97E-01 2.42E-01 7.28E-01 Sample ID: 259053 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.41E-02 0.00E+00 4.41E-02 Cs-134 <3.28E-02 0.00E+00 3.28E-02 Cs-137 <3.65E-02 0.00E+00 3.65E-02 Be-7 <2.18E-01 0.00E+00 2.18E-01 K-40 <1.10E+00 0.00E+00 1.10E+00 Sample ID: 259601 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <3.20E-02 0.00E+00 3.20E-02 Cs-137 <3.87E-02 0.00E+00 3.87E-02 Be-7 <2.82E-01 0.00E+00 2.82E-01 K-40 <1.08E+00 0.00E+00 1.08E+00 Sample ID: 260235 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.65E-02 0.00E+00 3.65E-02 Cs-134 <3.28E-02 0.00E+00 3.28E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 48 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 260235 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <3.02E-02 0.00E+00 3.02E-02 Be-7 <3.69E-01 0.00E+00 3.69E-01 K-40 8.27E-01 2.21E-01 4.47E-01 Sample ID: 260695 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.39E-02 0.00E+00 2.39E-02 Cs-134 <1.39E-02 0.00E+00 1.39E-02 Cs-137 <2.07E-02 0.00E+00 2.07E-02 Be-7 <1.20E-01 0.00E+00 1.20E-01 K-40 5.68E-01 1.27E-01 7.68E-02 Sample ID: 261658 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.04E-02 0.00E+00 4.04E-02 Cs-134 <3.17E-02 0.00E+00 3.17E-02 Cs-137 <3.89E-02 0.00E+00 3.89E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 8.86E-01 2.09E-01 1.33E-01 Sample ID: 262160 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.28E-02 0.00E+00 2.28E-02 Cs-134 <2.89E-02 0.00E+00 2.89E-02 Cs-137 <2.17E-02 0.00E+00 2.17E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 7.08E-01 2.21E-01 3.82E-01 Sample ID: 263166 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.47E-02 0.00E+00 1.47E-02 Cs-134 <2.46E-02 0.00E+00 2.46E-02 Cs-137 <3.14E-02 0.00E+00 3.14E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 9.26E-01 1.98E-01 1.14E-01 Sample ID: 263393 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.94E-02 0.00E+00 1.94E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <1.93E-02 0.00E+00 1.93E-02 Be-7 <1.23E-01 0.00E+00 1.23E-01 K-40 1.01E+00 1.80E-01 3.21E-01 Sample ID: 264051 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.21E-02 0.00E+00 3.21E-02 Cs-134 <1.74E-02 0.00E+00 1.74E-02 Cs-137 <2.19E-02 0.00E+00 2.19E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 <7.97E-01 0.00E+00 7.97E-01 Sample ID: 265182 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.91E-02 0.00E+00 3.91E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <4.32E-02 0.00E+00 4.32E-02 Be-7 <3.24E-01 0.00E+00 3.24E-01 K-40 4.90E-01 2.75E-01 8.08E-01 Sample ID: 265491 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.86E-02 0.00E+00 3.86E-02 Cs-134 <3.66E-02 0.00E+00 3.66E-02 Cs-137 <5.38E-02 0.00E+00 5.38E-02 Be-7 <3.90E-01 0.00E+00 3.90E-01 K-40 <1.05E+00 0.00E+00 1.05E+00 Sample ID: 267177 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.49E-02 0.00E+00 4.49E-02 Cs-134 <3.32E-02 0.00E+00 3.32E-02 Cs-137 <4.39E-02 0.00E+00 4.39E-02 Be-7 <2.72E-01 0.00E+00 2.72E-01 K-40 8.71E-01 2.11E-01 1.38E-01 Sample ID: 267650 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.60E-02 0.00E+00 4.60E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 49 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 267650 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <4.71E-02 0.00E+00 4.71E-02 Cs-137 <4.03E-02 0.00E+00 4.03E-02 Be-7 <3.04E-01 0.00E+00 3.04E-01 K-40 4.79E-01 3.04E-01 6.62E-01 Sample ID: 268486 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.62E-02 0.00E+00 3.62E-02 Cs-134 <3.27E-02 0.00E+00 3.27E-02 Cs-137 <4.72E-02 0.00E+00 4.72E-02 Be-7 <3.01E-01 0.00E+00 3.01E-01 K-40 <1.32E+00 0.00E+00 1.32E+00 Sample ID: 269646 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.54E-02 0.00E+00 2.54E-02 Cs-134 <2.07E-02 0.00E+00 2.07E-02 Cs-137 <2.01E-02 0.00E+00 2.01E-02 Be-7 <1.83E-01 0.00E+00 1.83E-01 K-40 8.98E-01 1.56E-01 2.85E-01 Sample ID: 270748 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.15E-02 0.00E+00 4.15E-02 Cs-134 <3.14E-02 0.00E+00 3.14E-02 Cs-137 <4.40E-02 0.00E+00 4.40E-02 Be-7 <2.76E-01 0.00E+00 2.76E-01 K-40 1.09E+00 2.51E-01 4.97E-01 Sample ID: 271473 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.25E-02 0.00E+00 4.25E-02 Cs-134 <3.29E-02 0.00E+00 3.29E-02 Cs-137 <2.88E-02 0.00E+00 2.88E-02 Be-7 <1.99E-01 0.00E+00 1.99E-01 K-40 8.02E-01 2.70E-01 7.50E-01 Sample ID: 272080 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.80E-02 0.00E+00 5.80E-02 Cs-134 <3.90E-02 0.00E+00 3.90E-02 Cs-137 <2.91E-02 0.00E+00 2.91E-02 Be-7 <3.12E-01 0.00E+00 3.12E-01 K-40 9.43E-01 2.86E-01 5.15E-01 Sample ID: 272463 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.31E-02 0.00E+00 3.31E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-137 <2.73E-02 0.00E+00 2.73E-02 Be-7 <2.31E-01 0.00E+00 2.31E-01 K-40 <1.07E+00 0.00E+00 1.07E+00 Sample ID: 272863 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.50E-02 0.00E+00 2.50E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <2.54E-02 0.00E+00 2.54E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 1.08E+00 1.89E-01 2.23E-01 Sample ID: 273954 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.25E-02 0.00E+00 2.25E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <2.63E-02 0.00E+00 2.63E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 4.97E-01 1.98E-01 1.07E-01 Sample ID: 274401 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.92E-02 0.00E+00 4.92E-02 Cs-134 <4.15E-02 0.00E+00 4.15E-02 Cs-137 <3.86E-02 0.00E+00 3.86E-02 Be-7 <2.81E-01 0.00E+00 2.81E-01 K-40 <1.37E+00 0.00E+00 1.37E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 50 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 274915 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.09E-02 0.00E+00 5.09E-02 Cs-134 <4.29E-02 0.00E+00 4.29E-02 Cs-137 <3.88E-02 0.00E+00 3.88E-02 Be-7 <2.09E-01 0.00E+00 2.09E-01 K-40 <1.09E+00 0.00E+00 1.09E+00 Sample ID: 276469 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.26E-02 0.00E+00 2.26E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.64E-01 0.00E+00 1.64E-01 K-40 1.17E+00 1.77E-01 2.38E-01 Sample ID: 277385 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <3.26E-02 0.00E+00 3.26E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 7.09E-01 1.67E-01 2.91E-01 Sample ID: 278717 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.50E-02 0.00E+00 3.50E-02 Cs-134 <2.13E-02 0.00E+00 2.13E-02 Cs-137 <2.41E-02 0.00E+00 2.41E-02 Be-7 <2.89E-01 0.00E+00 2.89E-01 K-40 <1.12E+00 0.00E+00 1.12E+00 Sample ID: 278990 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.60E-02 0.00E+00 6.60E-02 Cs-134 <3.92E-03 0.00E+00 3.92E-03 Cs-137 <4.47E-03 0.00E+00 4.47E-03 Be-7 <4.74E-02 0.00E+00 4.74E-02 K-40 1.06E+00 5.37E-02 4.44E-02 Sample ID: 279636 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.06E-02 0.00E+00 3.06E-02 Cs-134 <2.71E-02 0.00E+00 2.71E-02 Cs-137 <2.94E-02 0.00E+00 2.94E-02 Be-7 <2.23E-01 0.00E+00 2.23E-01 K-40 <7.66E-01 0.00E+00 7.66E-01 Sample ID: 280114 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.97E-02 0.00E+00 2.97E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <2.13E-02 0.00E+00 2.13E-02 Be-7 <1.59E-01 0.00E+00 1.59E-01 K-40 9.09E-01 2.13E-01 2.22E-01 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 249845 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.58E-02 0.00E+00 3.58E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <2.41E-02 0.00E+00 2.41E-02 Be-7 <1.73E-01 0.00E+00 1.73E-01 K-40 1.02E+00 1.63E-01 7.06E-02 Sample ID: 250667 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.73E-02 0.00E+00 3.73E-02 Cs-134 <2.59E-02 0.00E+00 2.59E-02 Cs-137 <3.08E-02 0.00E+00 3.08E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 8.05E-01 1.95E-01 1.28E-01 Sample ID: 250813 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.71E-02 0.00E+00 1.71E-02 Cs-134 <1.27E-02 0.00E+00 1.27E-02 Cs-137 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 51 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 250813 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD K-40 6.31E-01 1.63E-01 3.09E-01 Sample ID: 251146 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.85E-02 0.00E+00 2.85E-02 Cs-134 <3.23E-02 0.00E+00 3.23E-02 Cs-137 <2.93E-02 0.00E+00 2.93E-02 Be-7 <2.69E-01 0.00E+00 2.69E-01 K-40 <9.12E-01 0.00E+00 9.12E-01 Sample ID: 251300 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.78E-02 0.00E+00 2.78E-02 Cs-134 <1.89E-02 0.00E+00 1.89E-02 Cs-137 <2.75E-02 0.00E+00 2.75E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 <7.60E-01 0.00E+00 7.60E-01 Sample ID: 251318 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.77E-02 0.00E+00 2.77E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <3.21E-02 0.00E+00 3.21E-02 Be-7 <2.46E-01 0.00E+00 2.46E-01 K-40 <8.25E-01 0.00E+00 8.25E-01 Sample ID: 251623 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <3.04E-02 0.00E+00 3.04E-02 Cs-137 <3.38E-02 0.00E+00 3.38E-02 Be-7 <1.82E-01 0.00E+00 1.82E-01 K-40 1.00E+00 2.18E-01 1.29E-01 Sample ID: 252089 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.81E-02 0.00E+00 2.81E-02 Cs-134 <2.33E-02 0.00E+00 2.33E-02 Cs-137 <2.85E-02 0.00E+00 2.85E-02 Be-7 <1.88E-01 0.00E+00 1.88E-01 K-40 1.30E+00 2.31E-01 3.46E-01 Sample ID: 252718 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <2.32E-02 0.00E+00 2.32E-02 Cs-137 <3.16E-02 0.00E+00 3.16E-02 Be-7 <2.01E-01 0.00E+00 2.01E-01 K-40 6.44E-01 1.66E-01 3.66E-01 Sample ID: 253098 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.88E-02 0.00E+00 2.88E-02 Cs-134 <2.02E-02 0.00E+00 2.02E-02 Cs-137 <2.75E-02 0.00E+00 2.75E-02 Be-7 <1.11E-01 0.00E+00 1.11E-01 K-40 <8.37E-01 0.00E+00 8.37E-01 Sample ID: 253901 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.86E-02 0.00E+00 2.86E-02 Cs-134 <2.19E-02 0.00E+00 2.19E-02 Cs-137 <4.04E-02 0.00E+00 4.04E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 <8.30E-01 0.00E+00 8.30E-01 Sample ID: 254223 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.82E-02 0.00E+00 2.82E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <2.58E-02 0.00E+00 2.58E-02 Be-7 <2.09E-01 0.00E+00 2.09E-01 K-40 5.57E-01 1.90E-01 3.95E-01 Sample ID: 254758 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.81E-02 0.00E+00 2.81E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-137 <3.84E-02 0.00E+00 3.84E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 52 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 254758 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.17E-01 0.00E+00 2.17E-01 K-40 8.35E-01 1.92E-01 3.18E-01 Sample ID: 255319 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.03E-02 0.00E+00 3.03E-02 Cs-134 <2.32E-02 0.00E+00 2.32E-02 Cs-137 <2.91E-02 0.00E+00 2.91E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 6.59E-01 1.70E-01 1.19E-01 Sample ID: 255847 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.91E-02 0.00E+00 4.91E-02 Cs-134 <2.13E-02 0.00E+00 2.13E-02 Cs-137 <2.90E-02 0.00E+00 2.90E-02 Be-7 <1.94E-01 0.00E+00 1.94E-01 K-40 7.90E-01 1.83E-01 3.37E-01 Sample ID: 256081 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.74E-02 0.00E+00 3.74E-02 Cs-134 <1.79E-02 0.00E+00 1.79E-02 Cs-137 <2.40E-02 0.00E+00 2.40E-02 Be-7 <2.67E-01 0.00E+00 2.67E-01 K-40 5.73E-01 2.34E-01 5.28E-01 Sample ID: 256359 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <2.42E-02 0.00E+00 2.42E-02 Cs-137 <2.88E-02 0.00E+00 2.88E-02 Be-7 <1.39E-01 0.00E+00 1.39E-01 K-40 1.09E+00 1.73E-01 2.84E-01 Sample ID: 257149 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.96E-02 0.00E+00 2.96E-02 Cs-134 <1.83E-02 0.00E+00 1.83E-02 Cs-137 <2.75E-02 0.00E+00 2.75E-02 Be-7 <1.34E-01 0.00E+00 1.34E-01 K-40 7.86E-01 1.91E-01 1.25E-01 Sample ID: 257304 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.34E-02 0.00E+00 3.34E-02 Cs-134 <2.04E-02 0.00E+00 2.04E-02 Cs-137 <2.37E-02 0.00E+00 2.37E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 7.07E-01 1.82E-01 1.27E-01 Sample ID: 257751 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.27E-02 0.00E+00 2.27E-02 Cs-134 <1.42E-02 0.00E+00 1.42E-02 Cs-137 <2.83E-02 0.00E+00 2.83E-02 Be-7 <1.92E-01 0.00E+00 1.92E-01 K-40 7.61E-01 1.49E-01 2.13E-01 Sample ID: 257995 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.70E-02 0.00E+00 2.70E-02 Cs-134 <1.88E-02 0.00E+00 1.88E-02 Cs-137 <2.48E-02 0.00E+00 2.48E-02 Be-7 <1.71E-01 0.00E+00 1.71E-01 K-40 8.91E-01 1.63E-01 8.03E-02 Sample ID: 258230 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.51E-02 0.00E+00 4.51E-02 Cs-134 <4.51E-02 0.00E+00 4.51E-02 Cs-137 <4.23E-02 0.00E+00 4.23E-02 Be-7 <2.87E-01 0.00E+00 2.87E-01 K-40 1.02E+00 2.48E-01 6.97E-01 Sample ID: 258577 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.48E-02 0.00E+00 3.48E-02 Cs-134 <4.00E-02 0.00E+00 4.00E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 53 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 258577 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <5.58E-02 0.00E+00 5.58E-02 Be-7 <2.94E-01 0.00E+00 2.94E-01 K-40 1.28E+00 2.79E-01 4.60E-01 Sample ID: 259054 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.08E-02 0.00E+00 3.08E-02 Cs-134 <2.18E-02 0.00E+00 2.18E-02 Cs-137 <4.31E-02 0.00E+00 4.31E-02 Be-7 <1.83E-01 0.00E+00 1.83E-01 K-40 7.09E-01 1.90E-01 4.56E-01 Sample ID: 259602 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.07E-02 0.00E+00 3.07E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.57E-02 0.00E+00 1.57E-02 Be-7 <1.70E-01 0.00E+00 1.70E-01 K-40 1.63E+00 2.36E-01 2.83E-01 Sample ID: 260236 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.83E-02 0.00E+00 4.83E-02 Cs-134 <3.81E-02 0.00E+00 3.81E-02 Cs-137 <2.70E-02 0.00E+00 2.70E-02 Be-7 <2.85E-01 0.00E+00 2.85E-01 K-40 <1.08E+00 0.00E+00 1.08E+00 Sample ID: 260696 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.27E-02 0.00E+00 3.27E-02 Cs-134 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <2.69E-02 0.00E+00 2.69E-02 Be-7 <2.28E-01 0.00E+00 2.28E-01 K-40 8.71E-01 1.95E-01 3.68E-01 Sample ID: 261659 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.89E-02 0.00E+00 2.89E-02 Cs-134 <2.34E-02 0.00E+00 2.34E-02 Cs-137 <2.81E-02 0.00E+00 2.81E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 1.04E+00 2.12E-01 3.22E-01 Sample ID: 262161 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <2.23E-02 0.00E+00 2.23E-02 Cs-137 <2.03E-02 0.00E+00 2.03E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 1.15E+00 1.75E-01 7.20E-02 Sample ID: 263167 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.12E-02 0.00E+00 5.12E-02 Cs-134 <3.42E-02 0.00E+00 3.42E-02 Cs-137 <3.12E-02 0.00E+00 3.12E-02 Be-7 <2.96E-01 0.00E+00 2.96E-01 K-40 8.39E-01 2.88E-01 5.84E-01 Sample ID: 263394 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.42E-02 0.00E+00 2.42E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-137 <2.56E-02 0.00E+00 2.56E-02 Be-7 <1.71E-01 0.00E+00 1.71E-01 K-40 7.83E-01 1.83E-01 2.12E-01 Sample ID: 264052 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.87E-02 0.00E+00 1.87E-02 Cs-137 <2.35E-02 0.00E+00 2.35E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 6.32E-01 1.62E-01 7.63E-02 Sample ID: 265183 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.37E-02 0.00E+00 5.37E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 54 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 265183 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <3.47E-02 0.00E+00 3.47E-02 Cs-137 <3.78E-02 0.00E+00 3.78E-02 Be-7 <2.56E-01 0.00E+00 2.56E-01 K-40 5.35E-01 2.67E-01 7.13E-01 Sample ID: 265492 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.06E-02 0.00E+00 2.06E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <2.86E-02 0.00E+00 2.86E-02 Be-7 <1.77E-01 0.00E+00 1.77E-01 K-40 8.90E-01 2.52E-01 4.54E-01 Sample ID: 267178 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.99E-02 0.00E+00 3.99E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <3.14E-02 0.00E+00 3.14E-02 Be-7 <2.92E-01 0.00E+00 2.92E-01 K-40 1.06E+00 2.37E-01 4.73E-01 Sample ID: 267651 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.52E-02 0.00E+00 6.52E-02 Cs-134 <4.48E-02 0.00E+00 4.48E-02 Cs-137 <5.41E-02 0.00E+00 5.41E-02 Be-7 <3.57E-01 0.00E+00 3.57E-01 K-40 1.13E+00 2.83E-01 6.46E-01 Sample ID: 268487 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.61E-02 0.00E+00 4.61E-02 Cs-134 <2.61E-02 0.00E+00 2.61E-02 Cs-137 <3.08E-02 0.00E+00 3.08E-02 Be-7 <3.11E-01 0.00E+00 3.11E-01 K-40 8.45E-01 2.26E-01 5.41E-01 Sample ID: 269647 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.48E-02 0.00E+00 2.48E-02 Cs-134 <1.56E-02 0.00E+00 1.56E-02 Cs-137 <2.67E-02 0.00E+00 2.67E-02 Be-7 <1.80E-01 0.00E+00 1.80E-01 K-40 1.07E+00 2.24E-01 3.34E-01 Sample ID: 270749 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.89E-02 0.00E+00 4.89E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <4.62E-02 0.00E+00 4.62E-02 Be-7 <3.35E-01 0.00E+00 3.35E-01 K-40 1.13E+00 2.59E-01 4.30E-01 Sample ID: 271474 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.69E-02 0.00E+00 3.69E-02 Cs-134 <4.46E-02 0.00E+00 4.46E-02 Cs-137 <3.58E-02 0.00E+00 3.58E-02 Be-7 <3.54E-01 0.00E+00 3.54E-01 K-40 <1.39E+00 0.00E+00 1.39E+00 Sample ID: 272081 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.14E-02 0.00E+00 4.14E-02 Cs-134 <3.21E-02 0.00E+00 3.21E-02 Cs-137 <3.82E-02 0.00E+00 3.82E-02 Be-7 <3.30E-01 0.00E+00 3.30E-01 K-40 <1.41E+00 0.00E+00 1.41E+00 Sample ID: 272464 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.01E-02 0.00E+00 4.01E-02 Cs-134 <2.38E-02 0.00E+00 2.38E-02 Cs-137 <2.55E-02 0.00E+00 2.55E-02 Be-7 <2.25E-01 0.00E+00 2.25E-01 K-40 7.94E-01 2.50E-01 3.63E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 55 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 47 [ INDICATOR - SSW @ 3.4 miles ] 47 Sample ID: 272864 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.05E-02 0.00E+00 2.05E-02 Cs-134 <1.85E-02 0.00E+00 1.85E-02 Cs-137 <2.94E-02 0.00E+00 2.94E-02 Be-7 <1.73E-01 0.00E+00 1.73E-01 K-40 5.89E-01 1.63E-01 1.22E-01 Sample ID: 273955 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.51E-02 0.00E+00 2.51E-02 Cs-134 <2.44E-02 0.00E+00 2.44E-02 Cs-137 <2.80E-02 0.00E+00 2.80E-02 Be-7 <1.69E-01 0.00E+00 1.69E-01 K-40 9.83E-01 2.20E-01 4.40E-01 Sample ID: 274402 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.01E-02 0.00E+00 5.01E-02 Cs-134 <3.67E-02 0.00E+00 3.67E-02 Cs-137 <3.26E-02 0.00E+00 3.26E-02 Be-7 <3.01E-01 0.00E+00 3.01E-01 K-40 1.20E+00 2.69E-01 4.32E-01 Sample ID: 274916 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.28E-02 0.00E+00 5.28E-02 Cs-134 <3.09E-02 0.00E+00 3.09E-02 Cs-137 <4.27E-02 0.00E+00 4.27E-02 Be-7 <2.58E-01 0.00E+00 2.58E-01 K-40 <1.30E+00 0.00E+00 1.30E+00 Sample ID: 276470 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.43E-02 0.00E+00 5.43E-02 Cs-134 <3.09E-02 0.00E+00 3.09E-02 Cs-137 <2.87E-02 0.00E+00 2.87E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 8.88E-01 2.09E-01 3.51E-01 Sample ID: 277386 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.27E-02 0.00E+00 2.27E-02 Cs-134 <2.16E-02 0.00E+00 2.16E-02 Cs-137 <2.45E-02 0.00E+00 2.45E-02 Be-7 <2.95E-01 0.00E+00 2.95E-01 K-40 8.79E-01 2.07E-01 1.32E-01 Sample ID: 278718 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.82E-02 0.00E+00 4.82E-02 Cs-134 <3.55E-02 0.00E+00 3.55E-02 Cs-137 <2.64E-02 0.00E+00 2.64E-02 Be-7 <2.86E-01 0.00E+00 2.86E-01 K-40 9.73E-01 2.43E-01 1.64E-01 Sample ID: 278991 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.21E-02 0.00E+00 2.21E-02 Cs-134 <2.18E-02 0.00E+00 2.18E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 7.45E-01 1.90E-01 1.99E-01 Sample ID: 279637 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.70E-02 0.00E+00 3.70E-02 Cs-134 <3.30E-02 0.00E+00 3.30E-02 Cs-137 <2.04E-02 0.00E+00 2.04E-02 Be-7 <2.23E-01 0.00E+00 2.23E-01 K-40 1.03E+00 2.30E-01 3.94E-01 Sample ID: 280115 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.75E-02 0.00E+00 2.75E-02 Cs-134 <2.17E-02 0.00E+00 2.17E-02 Cs-137 <2.22E-02 0.00E+00 2.22E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 6.65E-01 1.72E-01 1.20E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 56 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 249846 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.70E-02 0.00E+00 4.70E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <2.34E-02 0.00E+00 2.34E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 1.23E+00 2.14E-01 1.97E-01 Sample ID: 250668 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.10E-02 0.00E+00 2.10E-02 Cs-134 <2.35E-02 0.00E+00 2.35E-02 Cs-137 <2.02E-02 0.00E+00 2.02E-02 Be-7 <1.65E-01 0.00E+00 1.65E-01 K-40 <9.79E-01 0.00E+00 9.79E-01 Sample ID: 250815 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <1.35E-02 0.00E+00 1.35E-02 Cs-137 <2.02E-02 0.00E+00 2.02E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 7.83E-01 1.80E-01 4.38E-01 Sample ID: 251147 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.90E-02 0.00E+00 3.90E-02 Cs-134 <2.02E-02 0.00E+00 2.02E-02 Cs-137 <2.87E-02 0.00E+00 2.87E-02 Be-7 <2.64E-01 0.00E+00 2.64E-01 K-40 4.38E-01 1.84E-01 3.55E-01 Sample ID: 251301 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.79E-02 0.00E+00 2.79E-02 Cs-134 <1.61E-02 0.00E+00 1.61E-02 Cs-137 <3.16E-02 0.00E+00 3.16E-02 Be-7 <2.56E-01 0.00E+00 2.56E-01 K-40 1.37E+00 2.31E-01 3.52E-01 Sample ID: 251319 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.31E-02 0.00E+00 2.31E-02 Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <2.91E-02 0.00E+00 2.91E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 1.11E+00 2.27E-01 3.50E-01 Sample ID: 251624 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.42E-02 0.00E+00 2.42E-02 Cs-134 <1.38E-02 0.00E+00 1.38E-02 Cs-137 <3.11E-02 0.00E+00 3.11E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 6.25E-01 1.61E-01 1.13E-01 Sample ID: 252090 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.04E-02 0.00E+00 4.04E-02 Cs-134 <2.44E-02 0.00E+00 2.44E-02 Cs-137 <4.25E-02 0.00E+00 4.25E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 7.43E-01 1.92E-01 4.12E-01 Sample ID: 252719 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <1.91E-02 0.00E+00 1.91E-02 Cs-137 <2.36E-02 0.00E+00 2.36E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 6.72E-01 1.37E-01 7.57E-02 Sample ID: 253099 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.34E-02 0.00E+00 3.34E-02 Cs-134 <3.32E-02 0.00E+00 3.32E-02 Cs-137 <2.83E-02 0.00E+00 2.83E-02 Be-7 <2.39E-01 0.00E+00 2.39E-01 K-40 1.02E+00 3.02E-01 5.22E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 57 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 253902 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.03E-02 0.00E+00 2.03E-02 Cs-134 <2.16E-02 0.00E+00 2.16E-02 Cs-137 <2.96E-02 0.00E+00 2.96E-02 Be-7 <1.64E-01 0.00E+00 1.64E-01 K-40 8.03E-01 2.10E-01 3.12E-01 Sample ID: 254224 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.84E-02 0.00E+00 2.84E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <1.95E-02 0.00E+00 1.95E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 1.01E+00 1.79E-01 1.83E-01 Sample ID: 255320 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <1.50E-02 0.00E+00 1.50E-02 Cs-137 <2.64E-02 0.00E+00 2.64E-02 Be-7 <1.92E-01 0.00E+00 1.92E-01 K-40 <9.48E-01 0.00E+00 9.48E-01 Sample ID: 255848 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.26E-02 0.00E+00 3.26E-02 Cs-134 <2.05E-02 0.00E+00 2.05E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.50E-01 0.00E+00 1.50E-01 K-40 5.56E-01 1.54E-01 5.19E-01 Sample ID: 256082 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.38E-02 0.00E+00 2.38E-02 Cs-134 <2.58E-02 0.00E+00 2.58E-02 Cs-137 <3.05E-02 0.00E+00 3.05E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 8.75E-01 2.01E-01 1.24E-01 Sample ID: 256360 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.90E-02 0.00E+00 3.90E-02 Cs-134 <3.02E-02 0.00E+00 3.02E-02 Cs-137 <2.52E-02 0.00E+00 2.52E-02 Be-7 <2.15E-01 0.00E+00 2.15E-01 K-40 <8.95E-01 0.00E+00 8.95E-01 Sample ID: 257150 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.45E-02 0.00E+00 2.45E-02 Cs-134 <2.39E-02 0.00E+00 2.39E-02 Cs-137 <2.82E-02 0.00E+00 2.82E-02 Be-7 <1.69E-01 0.00E+00 1.69E-01 K-40 1.49E+00 2.02E-01 7.44E-02 Sample ID: 257305 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.42E-02 0.00E+00 2.42E-02 Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <2.05E-02 0.00E+00 2.05E-02 Be-7 <3.93E-02 0.00E+00 3.93E-02 K-40 <8.82E-01 0.00E+00 8.82E-01 Sample ID: 257752 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.50E-02 0.00E+00 3.50E-02 Cs-134 <2.84E-02 0.00E+00 2.84E-02 Cs-137 <2.03E-02 0.00E+00 2.03E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 <7.85E-01 0.00E+00 7.85E-01 Sample ID: 257996 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.29E-02 0.00E+00 2.29E-02 Cs-134 <1.21E-02 0.00E+00 1.21E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 8.91E-01 1.60E-01 7.76E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 58 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 258231 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.99E-02 0.00E+00 3.99E-02 Cs-134 <4.44E-02 0.00E+00 4.44E-02 Cs-137 <3.81E-02 0.00E+00 3.81E-02 Be-7 <2.96E-01 0.00E+00 2.96E-01 K-40 5.30E-01 1.76E-01 4.45E-01 Sample ID: 258578 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.92E-02 0.00E+00 5.92E-02 Cs-134 <3.64E-02 0.00E+00 3.64E-02 Cs-137 <3.47E-02 0.00E+00 3.47E-02 Be-7 <2.50E-01 0.00E+00 2.50E-01 K-40 8.79E-01 2.27E-01 1.58E-01 Sample ID: 259055 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.04E-02 0.00E+00 4.04E-02 Cs-134 <3.14E-02 0.00E+00 3.14E-02 Cs-137 <3.99E-02 0.00E+00 3.99E-02 Be-7 <2.79E-01 0.00E+00 2.79E-01 K-40 <8.15E-01 0.00E+00 8.15E-01 Sample ID: 259603 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.47E-02 0.00E+00 4.47E-02 Cs-134 <3.45E-02 0.00E+00 3.45E-02 Cs-137 <5.47E-02 0.00E+00 5.47E-02 Be-7 <3.24E-01 0.00E+00 3.24E-01 K-40 8.25E-01 2.38E-01 6.52E-01 Sample ID: 260237 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.19E-02 0.00E+00 5.19E-02 Cs-134 <2.54E-02 0.00E+00 2.54E-02 Cs-137 <3.89E-02 0.00E+00 3.89E-02 Be-7 <2.31E-01 0.00E+00 2.31E-01 K-40 1.12E+00 2.56E-01 5.64E-01 Sample ID: 260697 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.42E-02 0.00E+00 2.42E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Cs-137 <2.46E-02 0.00E+00 2.46E-02 Be-7 <1.37E-01 0.00E+00 1.37E-01 K-40 8.42E-01 1.46E-01 3.03E-01 Sample ID: 261660 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.40E-02 0.00E+00 2.40E-02 Cs-134 <2.16E-02 0.00E+00 2.16E-02 Cs-137 <2.60E-02 0.00E+00 2.60E-02 Be-7 <1.76E-01 0.00E+00 1.76E-01 K-40 1.08E+00 2.01E-01 2.68E-01 Sample ID: 262162 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <2.04E-02 0.00E+00 2.04E-02 Cs-137 <2.45E-02 0.00E+00 2.45E-02 Be-7 <4.46E-02 0.00E+00 4.46E-02 K-40 9.26E-01 1.98E-01 4.64E-01 Sample ID: 263168 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <1.41E-02 0.00E+00 1.41E-02 Cs-137 <2.22E-02 0.00E+00 2.22E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 1.34E+00 2.06E-01 2.28E-01 Sample ID: 263395 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.14E-02 0.00E+00 3.14E-02 Cs-134 <2.62E-02 0.00E+00 2.62E-02 Cs-137 <3.99E-02 0.00E+00 3.99E-02 Be-7 <1.29E-01 0.00E+00 1.29E-01 K-40 7.49E-01 2.57E-01 3.56E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 59 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 264053 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.41E-02 0.00E+00 4.41E-02 Cs-134 <3.62E-02 0.00E+00 3.62E-02 Cs-137 <3.92E-02 0.00E+00 3.92E-02 Be-7 <2.91E-01 0.00E+00 2.91E-01 K-40 <1.06E+00 0.00E+00 1.06E+00 Sample ID: 265184 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.93E-02 0.00E+00 3.93E-02 Cs-134 <3.98E-02 0.00E+00 3.98E-02 Cs-137 <3.61E-02 0.00E+00 3.61E-02 Be-7 <2.81E-01 0.00E+00 2.81E-01 K-40 1.22E+00 2.67E-01 5.54E-01 Sample ID: 265493 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.89E-02 0.00E+00 4.89E-02 Cs-134 <3.29E-02 0.00E+00 3.29E-02 Cs-137 <4.39E-02 0.00E+00 4.39E-02 Be-7 <3.08E-01 0.00E+00 3.08E-01 K-40 5.18E-01 3.06E-01 5.61E-01 Sample ID: 267179 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.42E-02 0.00E+00 3.42E-02 Cs-134 <2.87E-02 0.00E+00 2.87E-02 Cs-137 <2.53E-02 0.00E+00 2.53E-02 Be-7 <2.26E-01 0.00E+00 2.26E-01 K-40 <9.64E-01 0.00E+00 9.64E-01 Sample ID: 267652 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <7.00E-02 0.00E+00 7.00E-02 Cs-134 <2.96E-02 0.00E+00 2.96E-02 Cs-137 <5.58E-02 0.00E+00 5.58E-02 Be-7 <2.05E-01 0.00E+00 2.05E-01 K-40 7.45E-01 3.18E-01 1.85E-01 Sample ID: 268488 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.69E-02 0.00E+00 3.69E-02 Cs-134 <3.27E-02 0.00E+00 3.27E-02 Cs-137 <2.99E-02 0.00E+00 2.99E-02 Be-7 <3.94E-01 0.00E+00 3.94E-01 K-40 7.59E-01 2.11E-01 4.41E-01 Sample ID: 269648 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.33E-02 0.00E+00 5.33E-02 Cs-134 <3.13E-02 0.00E+00 3.13E-02 Cs-137 <3.77E-02 0.00E+00 3.77E-02 Be-7 <2.39E-01 0.00E+00 2.39E-01 K-40 1.47E+00 2.93E-01 1.58E-01 Sample ID: 270750 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.01E-02 0.00E+00 5.01E-02 Cs-134 <3.64E-02 0.00E+00 3.64E-02 Cs-137 <3.69E-02 0.00E+00 3.69E-02 Be-7 <2.63E-01 0.00E+00 2.63E-01 K-40 6.91E-01 2.00E-01 4.17E-01 Sample ID: 271475 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.79E-02 0.00E+00 4.79E-02 Cs-134 <3.75E-02 0.00E+00 3.75E-02 Cs-137 <4.22E-02 0.00E+00 4.22E-02 Be-7 <3.11E-01 0.00E+00 3.11E-01 K-40 1.26E+00 3.41E-01 5.26E-01 Sample ID: 272082 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.82E-02 0.00E+00 2.82E-02 Cs-134 <3.11E-02 0.00E+00 3.11E-02 Cs-137 <3.81E-02 0.00E+00 3.81E-02 Be-7 <3.80E-01 0.00E+00 3.80E-01 K-40 1.56E+00 2.99E-01 4.14E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 60 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 272465 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.50E-02 0.00E+00 2.50E-02 Cs-134 <1.92E-02 0.00E+00 1.92E-02 Cs-137 <2.71E-02 0.00E+00 2.71E-02 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 9.48E-01 1.94E-01 2.96E-01 Sample ID: 272865 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.20E-02 0.00E+00 3.20E-02 Cs-134 <2.88E-02 0.00E+00 2.88E-02 Cs-137 <3.25E-02 0.00E+00 3.25E-02 Be-7 <2.25E-01 0.00E+00 2.25E-01 K-40 1.14E+00 2.32E-01 3.42E-01 Sample ID: 273956 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.55E-02 0.00E+00 3.55E-02 Cs-134 <2.34E-02 0.00E+00 2.34E-02 Cs-137 <3.34E-02 0.00E+00 3.34E-02 Be-7 <2.04E-01 0.00E+00 2.04E-01 K-40 9.41E-01 2.48E-01 5.03E-01 Sample ID: 274403 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.78E-02 0.00E+00 3.78E-02 Cs-134 <2.60E-02 0.00E+00 2.60E-02 Cs-137 <5.01E-02 0.00E+00 5.01E-02 Be-7 <3.20E-01 0.00E+00 3.20E-01 K-40 <1.26E+00 0.00E+00 1.26E+00 Sample ID: 274917 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.03E-02 0.00E+00 5.03E-02 Cs-134 <3.94E-02 0.00E+00 3.94E-02 Cs-137 <4.74E-02 0.00E+00 4.74E-02 Be-7 <3.20E-01 0.00E+00 3.20E-01 K-40 7.86E-01 2.63E-01 5.19E-01 Sample ID: 276471 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.52E-02 0.00E+00 3.52E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <1.94E-02 0.00E+00 1.94E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 1.12E+00 1.64E-01 1.72E-01 Sample ID: 277387 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.54E-02 0.00E+00 3.54E-02 Cs-134 <2.81E-02 0.00E+00 2.81E-02 Cs-137 <4.10E-02 0.00E+00 4.10E-02 Be-7 <3.28E-01 0.00E+00 3.28E-01 K-40 1.14E+00 2.54E-01 4.07E-01 Sample ID: 278719 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.98E-02 0.00E+00 4.98E-02 Cs-134 <3.86E-02 0.00E+00 3.86E-02 Cs-137 <4.37E-02 0.00E+00 4.37E-02 Be-7 <2.91E-01 0.00E+00 2.91E-01 K-40 9.31E-01 2.33E-01 5.48E-01 Sample ID: 278992 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.26E-02 0.00E+00 3.26E-02 Cs-134 <2.23E-02 0.00E+00 2.23E-02 Cs-137 <2.62E-02 0.00E+00 2.62E-02 Be-7 <2.53E-01 0.00E+00 2.53E-01 K-40 7.35E-01 2.32E-01 4.06E-01 Sample ID: 279638 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.01E-02 0.00E+00 5.01E-02 Cs-134 <2.98E-02 0.00E+00 2.98E-02 Cs-137 <3.23E-02 0.00E+00 3.23E-02 Be-7 <2.75E-01 0.00E+00 2.75E-01 K-40 8.45E-01 2.05E-01 5.25E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 61 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 280116 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.12E-02 0.00E+00 3.12E-02 Cs-134 <2.00E-02 0.00E+00 2.00E-02 Cs-137 <2.64E-02 0.00E+00 2.64E-02 Be-7 <2.32E-01 0.00E+00 2.32E-01 K-40 1.33E+00 2.51E-01 3.39E-01 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 249847 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.60E-02 0.00E+00 3.60E-02 Cs-134 <2.44E-02 0.00E+00 2.44E-02 Cs-137 <2.76E-02 0.00E+00 2.76E-02 Be-7 <2.18E-01 0.00E+00 2.18E-01 K-40 7.32E-01 1.83E-01 3.86E-01 Sample ID: 250669 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error 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 <1.72E-02 0.00E+00 1.72E-02 Be-7 <2.13E-01 0.00E+00 2.13E-01 K-40 <7.58E-01 0.00E+00 7.58E-01 Sample ID: 250816 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.91E-02 0.00E+00 2.91E-02 Cs-134 <2.79E-02 0.00E+00 2.79E-02 Cs-137 <3.48E-02 0.00E+00 3.48E-02 Be-7 <1.94E-01 0.00E+00 1.94E-01 K-40 9.70E-01 1.94E-01 7.98E-02 Sample ID: 251148 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.89E-02 0.00E+00 1.89E-02 Cs-134 <4.90E-03 0.00E+00 4.90E-03 Cs-137 <2.32E-02 0.00E+00 2.32E-02 Be-7 <1.70E-01 0.00E+00 1.70E-01 K-40 8.45E-01 2.31E-01 3.67E-01 Sample ID: 251302 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.78E-02 0.00E+00 1.78E-02 Cs-134 <1.81E-02 0.00E+00 1.81E-02 Cs-137 <2.54E-02 0.00E+00 2.54E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 7.03E-01 1.76E-01 3.75E-01 Sample ID: 251320 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.46E-02 0.00E+00 3.46E-02 Cs-134 <2.68E-02 0.00E+00 2.68E-02 Cs-137 <3.85E-02 0.00E+00 3.85E-02 Be-7 <2.06E-01 0.00E+00 2.06E-01 K-40 7.30E-01 1.82E-01 1.23E-01 Sample ID: 251625 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.95E-02 0.00E+00 1.95E-02 Cs-134 <1.73E-02 0.00E+00 1.73E-02 Cs-137 <2.43E-02 0.00E+00 2.43E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 1.43E+00 2.06E-01 2.76E-01 Sample ID: 252091 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.96E-02 0.00E+00 2.96E-02 Cs-134 <1.97E-02 0.00E+00 1.97E-02 Cs-137 <2.36E-02 0.00E+00 2.36E-02 Be-7 <1.94E-01 0.00E+00 1.94E-01 K-40 6.81E-01 1.90E-01 2.77E-01 Sample ID: 252720 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <2.49E-02 0.00E+00 2.49E-02 Cs-137 <2.95E-02 0.00E+00 2.95E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 62 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 252720 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD K-40 7.84E-01 1.87E-01 3.56E-01 Sample ID: 253100 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.36E-02 0.00E+00 4.36E-02 Cs-134 <2.37E-02 0.00E+00 2.37E-02 Cs-137 <3.45E-02 0.00E+00 3.45E-02 Be-7 <2.97E-01 0.00E+00 2.97E-01 K-40 1.16E+00 2.43E-01 4.16E-01 Sample ID: 253903 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.23E-02 0.00E+00 2.23E-02 Cs-134 <1.14E-02 0.00E+00 1.14E-02 Cs-137 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.84E-01 0.00E+00 1.84E-01 K-40 1.25E+00 1.80E-01 7.02E-02 Sample ID: 254225 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.06E-02 0.00E+00 4.06E-02 Cs-134 <2.05E-02 0.00E+00 2.05E-02 Cs-137 <3.63E-02 0.00E+00 3.63E-02 Be-7 <2.36E-01 0.00E+00 2.36E-01 K-40 <9.65E-01 0.00E+00 9.65E-01 Sample ID: 254760 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.89E-02 0.00E+00 3.89E-02 Cs-134 <3.92E-02 0.00E+00 3.92E-02 Cs-137 <2.72E-02 0.00E+00 2.72E-02 Be-7 <3.06E-01 0.00E+00 3.06E-01 K-40 9.46E-01 2.68E-01 5.24E-01 Sample ID: 255321 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.94E-02 0.00E+00 3.94E-02 Cs-134 <3.19E-02 0.00E+00 3.19E-02 Cs-137 <3.26E-02 0.00E+00 3.26E-02 Be-7 <1.93E-01 0.00E+00 1.93E-01 K-40 7.46E-01 1.92E-01 4.53E-01 Sample ID: 255849 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.40E-02 0.00E+00 3.40E-02 Cs-134 <2.26E-02 0.00E+00 2.26E-02 Cs-137 <3.05E-02 0.00E+00 3.05E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 7.42E-01 1.75E-01 3.63E-01 Sample ID: 256083 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.97E-02 0.00E+00 2.97E-02 Cs-134 <2.04E-02 0.00E+00 2.04E-02 Cs-137 <2.96E-02 0.00E+00 2.96E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 9.16E-01 1.62E-01 7.74E-02 Sample ID: 256371 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.48E-02 0.00E+00 2.48E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <2.10E-02 0.00E+00 2.10E-02 Be-7 <1.22E-01 0.00E+00 1.22E-01 K-40 8.12E-01 1.86E-01 1.16E-01 Sample ID: 257161 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.59E-02 0.00E+00 2.59E-02 Cs-134 <2.18E-02 0.00E+00 2.18E-02 Cs-137 <1.56E-02 0.00E+00 1.56E-02 Be-7 <1.69E-01 0.00E+00 1.69E-01 K-40 1.08E+00 1.94E-01 1.96E-01 Sample ID: 257306 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.02E-02 0.00E+00 3.02E-02 Cs-134 <2.63E-02 0.00E+00 2.63E-02 Cs-137 <2.58E-02 0.00E+00 2.58E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 63 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 257306 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.73E-01 0.00E+00 1.73E-01 K-40 8.70E-01 1.64E-01 2.26E-01 Sample ID: 257753 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.77E-02 0.00E+00 2.77E-02 Cs-134 <2.28E-02 0.00E+00 2.28E-02 Cs-137 <3.10E-02 0.00E+00 3.10E-02 Be-7 <1.89E-01 0.00E+00 1.89E-01 K-40 <8.36E-01 0.00E+00 8.36E-01 Sample ID: 257997 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <1.92E-02 0.00E+00 1.92E-02 Cs-137 <2.93E-02 0.00E+00 2.93E-02 Be-7 <1.31E-01 0.00E+00 1.31E-01 K-40 1.12E+00 1.85E-01 8.21E-02 Sample ID: 258232 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.95E-02 0.00E+00 4.95E-02 Cs-134 <4.04E-02 0.00E+00 4.04E-02 Cs-137 <4.01E-02 0.00E+00 4.01E-02 Be-7 <2.97E-01 0.00E+00 2.97E-01 K-40 6.82E-01 2.06E-01 5.94E-01 Sample ID: 258579 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.49E-02 0.00E+00 4.49E-02 Cs-134 <4.81E-02 0.00E+00 4.81E-02 Cs-137 <5.53E-02 0.00E+00 5.53E-02 Be-7 <3.01E-01 0.00E+00 3.01E-01 K-40 6.95E-01 2.88E-01 4.68E-01 Sample ID: 259056 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.44E-02 0.00E+00 5.44E-02 Cs-134 <2.35E-02 0.00E+00 2.35E-02 Cs-137 <2.78E-02 0.00E+00 2.78E-02 Be-7 <2.10E-01 0.00E+00 2.10E-01 K-40 9.24E-01 2.24E-01 4.90E-01 Sample ID: 259604 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.89E-02 0.00E+00 3.89E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <3.09E-02 0.00E+00 3.09E-02 Be-7 <2.56E-01 0.00E+00 2.56E-01 K-40 1.23E+00 2.75E-01 1.66E-01 Sample ID: 260238 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.17E-02 0.00E+00 5.17E-02 Cs-134 <3.09E-02 0.00E+00 3.09E-02 Cs-137 <3.57E-02 0.00E+00 3.57E-02 Be-7 <3.23E-01 0.00E+00 3.23E-01 K-40 1.31E+00 2.85E-01 4.71E-01 Sample ID: 260698 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.84E-02 0.00E+00 3.84E-02 Cs-134 <1.77E-02 0.00E+00 1.77E-02 Cs-137 <3.92E-02 0.00E+00 3.92E-02 Be-7 <2.34E-01 0.00E+00 2.34E-01 K-40 1.26E+00 2.58E-01 1.42E-01 Sample ID: 261661 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <2.38E-02 0.00E+00 2.38E-02 Cs-137 <2.89E-02 0.00E+00 2.89E-02 Be-7 <4.18E-02 0.00E+00 4.18E-02 K-40 5.58E-01 2.05E-01 3.31E-01 Sample ID: 262163 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.93E-02 0.00E+00 1.93E-02 Cs-134 <1.84E-02 0.00E+00 1.84E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 64 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 262163 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <2.62E-02 0.00E+00 2.62E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 3.78E-01 1.76E-01 3.26E-01 Sample ID: 263169 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.29E-02 0.00E+00 5.29E-02 Cs-134 <3.12E-02 0.00E+00 3.12E-02 Cs-137 <4.33E-02 0.00E+00 4.33E-02 Be-7 <3.04E-01 0.00E+00 3.04E-01 K-40 8.09E-01 2.24E-01 4.70E-01 Sample ID: 263396 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.48E-02 0.00E+00 2.48E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-137 <1.94E-02 0.00E+00 1.94E-02 Be-7 <1.69E-01 0.00E+00 1.69E-01 K-40 1.29E+00 1.86E-01 2.42E-01 Sample ID: 264054 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.35E-02 0.00E+00 3.35E-02 Cs-134 <3.18E-02 0.00E+00 3.18E-02 Cs-137 <4.30E-02 0.00E+00 4.30E-02 Be-7 <2.02E-01 0.00E+00 2.02E-01 K-40 7.95E-01 2.05E-01 1.43E-01 Sample ID: 265185 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.96E-02 0.00E+00 5.96E-02 Cs-134 <3.09E-02 0.00E+00 3.09E-02 Cs-137 <2.49E-02 0.00E+00 2.49E-02 Be-7 <3.06E-01 0.00E+00 3.06E-01 K-40 <9.23E-01 0.00E+00 9.23E-01 Sample ID: 265494 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <2.31E-02 0.00E+00 2.31E-02 Cs-137 <2.16E-02 0.00E+00 2.16E-02 Be-7 <1.98E-01 0.00E+00 1.98E-01 K-40 9.44E-01 2.11E-01 3.64E-01 Sample ID: 267180 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.00E-02 0.00E+00 5.00E-02 Cs-134 <4.55E-02 0.00E+00 4.55E-02 Cs-137 <4.86E-02 0.00E+00 4.86E-02 Be-7 <2.62E-01 0.00E+00 2.62E-01 K-40 <1.03E+00 0.00E+00 1.03E+00 Sample ID: 267653 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.57E-02 0.00E+00 4.57E-02 Cs-134 <4.95E-02 0.00E+00 4.95E-02 Cs-137 <2.88E-02 0.00E+00 2.88E-02 Be-7 <3.25E-01 0.00E+00 3.25E-01 K-40 <1.56E+00 0.00E+00 1.56E+00 Sample ID: 268489 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.33E-02 0.00E+00 5.33E-02 Cs-134 <3.60E-02 0.00E+00 3.60E-02 Cs-137 <4.13E-02 0.00E+00 4.13E-02 Be-7 <3.41E-01 0.00E+00 3.41E-01 K-40 1.55E+00 3.16E-01 5.77E-01 Sample ID: 269649 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.70E-02 0.00E+00 3.70E-02 Cs-134 <2.33E-02 0.00E+00 2.33E-02 Cs-137 <3.39E-02 0.00E+00 3.39E-02 Be-7 <1.78E-01 0.00E+00 1.78E-01 K-40 6.35E-01 1.76E-01 1.32E-01 Sample ID: 270751 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.24E-02 0.00E+00 5.24E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 65 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 270751 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <4.84E-02 0.00E+00 4.84E-02 Cs-137 <3.25E-02 0.00E+00 3.25E-02 Be-7 <2.49E-01 0.00E+00 2.49E-01 K-40 <1.39E+00 0.00E+00 1.39E+00 Sample ID: 271476 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.05E-02 0.00E+00 5.05E-02 Cs-134 <4.59E-02 0.00E+00 4.59E-02 Cs-137 <3.66E-02 0.00E+00 3.66E-02 Be-7 <3.28E-01 0.00E+00 3.28E-01 K-40 8.38E-01 2.32E-01 6.18E-01 Sample ID: 272083 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <6.51E-02 0.00E+00 6.51E-02 Cs-134 <4.02E-02 0.00E+00 4.02E-02 Cs-137 <3.69E-02 0.00E+00 3.69E-02 Be-7 <2.17E-01 0.00E+00 2.17E-01 K-40 9.38E-01 3.32E-01 5.48E-01 Sample ID: 272466 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.83E-02 0.00E+00 2.83E-02 Cs-134 <2.22E-02 0.00E+00 2.22E-02 Cs-137 <3.50E-02 0.00E+00 3.50E-02 Be-7 <2.06E-01 0.00E+00 2.06E-01 K-40 6.28E-01 1.74E-01 1.31E-01 Sample ID: 272866 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.70E-02 0.00E+00 2.70E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <1.51E-02 0.00E+00 1.51E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 1.26E+00 2.07E-01 1.92E-01 Sample ID: 273957 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.11E-02 0.00E+00 3.11E-02 Cs-134 <1.81E-02 0.00E+00 1.81E-02 Cs-137 <3.58E-02 0.00E+00 3.58E-02 Be-7 <1.65E-01 0.00E+00 1.65E-01 K-40 9.07E-01 1.98E-01 3.14E-01 Sample ID: 274404 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.41E-02 0.00E+00 5.41E-02 Cs-134 <4.40E-02 0.00E+00 4.40E-02 Cs-137 <5.00E-02 0.00E+00 5.00E-02 Be-7 <2.78E-01 0.00E+00 2.78E-01 K-40 1.58E+00 3.16E-01 7.37E-01 Sample ID: 274918 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.36E-02 0.00E+00 4.36E-02 Cs-134 <3.84E-02 0.00E+00 3.84E-02 Cs-137 <4.70E-02 0.00E+00 4.70E-02 Be-7 <3.69E-01 0.00E+00 3.69E-01 K-40 1.32E+00 2.88E-01 1.70E-01 Sample ID: 276472 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.25E-02 0.00E+00 4.25E-02 Cs-134 <2.86E-02 0.00E+00 2.86E-02 Cs-137 <2.11E-02 0.00E+00 2.11E-02 Be-7 <2.24E-01 0.00E+00 2.24E-01 K-40 8.25E-01 2.33E-01 3.97E-01 Sample ID: 277388 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.80E-02 0.00E+00 3.80E-02 Cs-134 <3.28E-02 0.00E+00 3.28E-02 Cs-137 <2.76E-02 0.00E+00 2.76E-02 Be-7 <2.21E-01 0.00E+00 2.21E-01 K-40 7.23E-01 1.93E-01 1.40E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 66 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 90 [ INDICATOR - SSW @ 0.5 miles ] 90 Sample ID: 278720 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.22E-02 0.00E+00 4.22E-02 Cs-134 <4.98E-02 0.00E+00 4.98E-02 Cs-137 <2.60E-02 0.00E+00 2.60E-02 Be-7 <3.41E-01 0.00E+00 3.41E-01 K-40 8.70E-01 2.94E-01 7.83E-01 Sample ID: 278993 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.56E-02 0.00E+00 4.56E-02 Cs-134 <3.03E-02 0.00E+00 3.03E-02 Cs-137 <4.08E-02 0.00E+00 4.08E-02 Be-7 <2.83E-01 0.00E+00 2.83E-01 K-40 1.27E+00 2.77E-01 1.63E-01 Sample ID: 279639 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.57E-02 0.00E+00 2.57E-02 Cs-134 <2.09E-02 0.00E+00 2.09E-02 Cs-137 <2.42E-02 0.00E+00 2.42E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 1.14E+00 1.77E-01 2.03E-01 Sample ID: 280117 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.51E-02 0.00E+00 3.51E-02 Cs-134 <2.37E-02 0.00E+00 2.37E-02 Cs-137 <3.09E-02 0.00E+00 3.09E-02 Be-7 <1.97E-01 0.00E+00 1.97E-01 K-40 4.75E-01 2.05E-01 4.27E-01 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 249848 Sample Dates: 12/31/2012 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.89E-02 0.00E+00 5.89E-02 Cs-134 <2.95E-02 0.00E+00 2.95E-02 Cs-137 <3.58E-02 0.00E+00 3.58E-02 Be-7 <2.52E-01 0.00E+00 2.52E-01 K-40 7.93E-01 1.98E-01 1.34E-01 Sample ID: 250670 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.40E-02 0.00E+00 3.40E-02 Cs-134 <3.14E-02 0.00E+00 3.14E-02 Cs-137 <4.02E-02 0.00E+00 4.02E-02 Be-7 <2.07E-01 0.00E+00 2.07E-01 K-40 3.66E-01 2.27E-01 6.60E-01 Sample ID: 250817 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <2.36E-02 0.00E+00 2.36E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 <8.39E-01 0.00E+00 8.39E-01 Sample ID: 251149 Sample Dates: 1/14/2013 - 1/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <2.18E-02 0.00E+00 2.18E-02 Cs-137 <2.76E-02 0.00E+00 2.76E-02 Be-7 <1.94E-01 0.00E+00 1.94E-01 K-40 <9.29E-01 0.00E+00 9.29E-01 Sample ID: 251303 Sample Dates: 1/28/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.80E-02 0.00E+00 3.80E-02 Cs-134 <3.41E-02 0.00E+00 3.41E-02 Cs-137 <2.40E-02 0.00E+00 2.40E-02 Be-7 <1.87E-01 0.00E+00 1.87E-01 K-40 8.62E-01 2.03E-01 4.58E-01 Sample ID: 251321 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.70E-02 0.00E+00 2.70E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <1.64E-02 0.00E+00 1.64E-02 Be-7 <1.18E-01 0.00E+00 1.18E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 67 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 251321 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD K-40 9.66E-01 1.94E-01 3.38E-01 Sample ID: 251626 Sample Dates: 2/11/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.76E-02 0.00E+00 3.76E-02 Cs-134 <2.10E-02 0.00E+00 2.10E-02 Cs-137 <3.26E-02 0.00E+00 3.26E-02 Be-7 <1.70E-01 0.00E+00 1.70E-01 K-40 3.01E-01 2.02E-01 4.85E-01 Sample ID: 252092 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.08E-02 0.00E+00 3.08E-02 Cs-134 <2.03E-02 0.00E+00 2.03E-02 Cs-137 <2.73E-02 0.00E+00 2.73E-02 Be-7 <2.14E-01 0.00E+00 2.14E-01 K-40 5.02E-01 1.83E-01 1.16E-01 Sample ID: 252721 Sample Dates: 2/25/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.88E-02 0.00E+00 3.88E-02 Cs-134 <3.58E-02 0.00E+00 3.58E-02 Cs-137 <4.11E-02 0.00E+00 4.11E-02 Be-7 <2.06E-01 0.00E+00 2.06E-01 K-40 <8.81E-01 0.00E+00 8.81E-01 Sample ID: 253101 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.99E-02 0.00E+00 2.99E-02 Cs-134 <2.41E-02 0.00E+00 2.41E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.98E-01 0.00E+00 1.98E-01 K-40 <8.34E-01 0.00E+00 8.34E-01 Sample ID: 253904 Sample Dates: 3/11/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.73E-02 0.00E+00 4.73E-02 Cs-134 <2.79E-02 0.00E+00 2.79E-02 Cs-137 <3.28E-02 0.00E+00 3.28E-02 Be-7 <2.15E-01 0.00E+00 2.15E-01 K-40 1.07E+00 2.78E-01 5.17E-01 Sample ID: 254226 Sample Dates: 3/18/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.62E-02 0.00E+00 2.62E-02 Cs-134 <2.23E-02 0.00E+00 2.23E-02 Cs-137 <2.25E-02 0.00E+00 2.25E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 1.06E+00 2.21E-01 3.26E-01 Sample ID: 254761 Sample Dates: 3/25/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.31E-02 0.00E+00 2.31E-02 Cs-134 <2.15E-02 0.00E+00 2.15E-02 Cs-137 <1.34E-02 0.00E+00 1.34E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 1.36E+00 2.07E-01 2.35E-01 Sample ID: 255322 Sample Dates: 4/1/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.77E-02 0.00E+00 2.77E-02 Cs-134 <1.83E-02 0.00E+00 1.83E-02 Cs-137 <2.33E-02 0.00E+00 2.33E-02 Be-7 <1.21E-01 0.00E+00 1.21E-01 K-40 1.10E+00 1.79E-01 2.65E-01 Sample ID: 255850 Sample Dates: 4/8/2013 - 4/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.49E-02 0.00E+00 2.49E-02 Cs-134 <2.07E-02 0.00E+00 2.07E-02 Cs-137 <2.16E-02 0.00E+00 2.16E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 3.79E-01 1.46E-01 7.88E-02 Sample ID: 256084 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.48E-02 0.00E+00 3.48E-02 Cs-134 <3.75E-02 0.00E+00 3.75E-02 Cs-137 <3.66E-02 0.00E+00 3.66E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 68 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 256084 Sample Dates: 4/15/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.21E-01 0.00E+00 2.21E-01 K-40 9.51E-01 2.18E-01 3.76E-01 Sample ID: 256361 Sample Dates: 4/22/2013 - 4/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.70E-02 0.00E+00 2.70E-02 Cs-134 <1.54E-02 0.00E+00 1.54E-02 Cs-137 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.59E-01 0.00E+00 1.59E-01 K-40 <9.17E-01 0.00E+00 9.17E-01 Sample ID: 257151 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.37E-02 0.00E+00 2.37E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <2.83E-02 0.00E+00 2.83E-02 Be-7 <1.73E-01 0.00E+00 1.73E-01 K-40 <8.08E-01 0.00E+00 8.08E-01 Sample ID: 257307 Sample Dates: 5/6/2013 - 5/13/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.30E-02 0.00E+00 2.30E-02 Cs-134 <2.24E-02 0.00E+00 2.24E-02 Cs-137 <2.44E-02 0.00E+00 2.44E-02 Be-7 <1.52E-01 0.00E+00 1.52E-01 K-40 8.37E-01 1.78E-01 3.02E-01 Sample ID: 257754 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.77E-02 0.00E+00 3.77E-02 Cs-134 <3.91E-02 0.00E+00 3.91E-02 Cs-137 <3.54E-02 0.00E+00 3.54E-02 Be-7 <1.92E-01 0.00E+00 1.92E-01 K-40 <9.09E-01 0.00E+00 9.09E-01 Sample ID: 257998 Sample Dates: 5/20/2013 - 5/27/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.39E-02 0.00E+00 2.39E-02 Cs-134 <1.68E-02 0.00E+00 1.68E-02 Cs-137 <2.50E-02 0.00E+00 2.50E-02 Be-7 <1.51E-01 0.00E+00 1.51E-01 K-40 6.58E-01 1.37E-01 7.74E-02 Sample ID: 258233 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.96E-02 0.00E+00 4.96E-02 Cs-134 <3.35E-02 0.00E+00 3.35E-02 Cs-137 <4.25E-02 0.00E+00 4.25E-02 Be-7 <3.36E-01 0.00E+00 3.36E-01 K-40 <1.30E+00 0.00E+00 1.30E+00 Sample ID: 258580 Sample Dates: 6/3/2013 - 6/10/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.37E-02 0.00E+00 4.37E-02 Cs-134 <3.86E-02 0.00E+00 3.86E-02 Cs-137 <2.38E-02 0.00E+00 2.38E-02 Be-7 <2.84E-01 0.00E+00 2.84E-01 K-40 6.20E-01 2.49E-01 1.58E-01 Sample ID: 259057 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.90E-02 0.00E+00 4.90E-02 Cs-134 <3.23E-02 0.00E+00 3.23E-02 Cs-137 <3.26E-02 0.00E+00 3.26E-02 Be-7 <2.63E-01 0.00E+00 2.63E-01 K-40 7.22E-01 1.93E-01 4.65E-01 Sample ID: 259605 Sample Dates: 6/18/2013 - 6/24/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.91E-02 0.00E+00 2.91E-02 Cs-134 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <2.93E-02 0.00E+00 2.93E-02 Be-7 <1.81E-01 0.00E+00 1.81E-01 K-40 1.23E+00 2.14E-01 3.12E-01 Sample ID: 260239 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.55E-02 0.00E+00 5.55E-02 Cs-134 <4.09E-02 0.00E+00 4.09E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 69 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 260239 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <2.37E-02 0.00E+00 2.37E-02 Be-7 <2.94E-01 0.00E+00 2.94E-01 K-40 1.39E+00 3.26E-01 4.42E-01 Sample ID: 260699 Sample Dates: 7/1/2013 - 7/8/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.94E-02 0.00E+00 4.94E-02 Cs-134 <3.12E-02 0.00E+00 3.12E-02 Cs-137 <4.28E-02 0.00E+00 4.28E-02 Be-7 <2.77E-01 0.00E+00 2.77E-01 K-40 1.08E+00 3.11E-01 5.01E-01 Sample ID: 261662 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.82E-02 0.00E+00 2.82E-02 Cs-134 <2.71E-02 0.00E+00 2.71E-02 Cs-137 <6.42E-03 0.00E+00 6.42E-03 Be-7 <1.69E-01 0.00E+00 1.69E-01 K-40 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 262164 Sample Dates: 7/15/2013 - 7/22/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.57E-02 0.00E+00 3.57E-02 Cs-134 <1.92E-02 0.00E+00 1.92E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.89E-01 0.00E+00 1.89E-01 K-40 3.97E-01 1.32E-01 4.83E-01 Sample ID: 263170 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.64E-02 0.00E+00 3.64E-02 Cs-134 <4.09E-02 0.00E+00 4.09E-02 Cs-137 <3.69E-02 0.00E+00 3.69E-02 Be-7 <3.01E-01 0.00E+00 3.01E-01 K-40 <1.14E+00 0.00E+00 1.14E+00 Sample ID: 263397 Sample Dates: 7/29/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.99E-02 0.00E+00 2.99E-02 Cs-134 <2.46E-02 0.00E+00 2.46E-02 Cs-137 <2.04E-02 0.00E+00 2.04E-02 Be-7 <1.75E-01 0.00E+00 1.75E-01 K-40 8.75E-01 1.91E-01 3.08E-01 Sample ID: 264055 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.68E-02 0.00E+00 4.68E-02 Cs-134 <3.93E-02 0.00E+00 3.93E-02 Cs-137 <4.19E-02 0.00E+00 4.19E-02 Be-7 <2.80E-01 0.00E+00 2.80E-01 K-40 <1.38E+00 0.00E+00 1.38E+00 Sample ID: 265186 Sample Dates: 8/12/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.61E-02 0.00E+00 4.61E-02 Cs-134 <3.96E-02 0.00E+00 3.96E-02 Cs-137 <4.43E-02 0.00E+00 4.43E-02 Be-7 <2.89E-01 0.00E+00 2.89E-01 K-40 7.54E-01 2.67E-01 4.36E-01 Sample ID: 265495 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.32E-02 0.00E+00 2.32E-02 Cs-134 <1.94E-02 0.00E+00 1.94E-02 Cs-137 <3.17E-02 0.00E+00 3.17E-02 Be-7 <1.77E-01 0.00E+00 1.77E-01 K-40 7.92E-01 1.87E-01 1.19E-01 Sample ID: 267181 Sample Dates: 8/26/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.63E-02 0.00E+00 4.63E-02 Cs-134 <3.11E-02 0.00E+00 3.11E-02 Cs-137 <2.72E-02 0.00E+00 2.72E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 1.07E+00 2.33E-01 5.64E-01 Sample ID: 267654 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.72E-02 0.00E+00 5.72E-02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 70 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 267654 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <4.15E-02 0.00E+00 4.15E-02 Cs-137 <3.96E-02 0.00E+00 3.96E-02 Be-7 <3.24E-01 0.00E+00 3.24E-01 K-40 1.43E+00 3.11E-01 1.84E-01 Sample ID: 268490 Sample Dates: 9/9/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.92E-02 0.00E+00 5.92E-02 Cs-134 <3.14E-02 0.00E+00 3.14E-02 Cs-137 <4.13E-02 0.00E+00 4.13E-02 Be-7 <1.83E-01 0.00E+00 1.83E-01 K-40 9.28E-01 2.32E-01 1.57E-01 Sample ID: 269650 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.94E-02 0.00E+00 1.94E-02 Cs-134 <1.97E-02 0.00E+00 1.97E-02 Cs-137 <1.58E-02 0.00E+00 1.58E-02 Be-7 <1.53E-01 0.00E+00 1.53E-01 K-40 1.06E+00 1.68E-01 2.25E-01 Sample ID: 270752 Sample Dates: 9/23/2013 - 9/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.04E-02 0.00E+00 5.04E-02 Cs-134 <3.62E-02 0.00E+00 3.62E-02 Cs-137 <3.78E-02 0.00E+00 3.78E-02 Be-7 <2.38E-01 0.00E+00 2.38E-01 K-40 8.86E-01 3.14E-01 7.10E-01 Sample ID: 271477 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.82E-02 0.00E+00 4.82E-02 Cs-134 <3.71E-02 0.00E+00 3.71E-02 Cs-137 <4.93E-02 0.00E+00 4.93E-02 Be-7 1.38E-01 9.79E-02 2.72E-01 K-40 8.36E-01 3.09E-01 1.56E-01 Sample ID: 272084 Sample Dates: 10/7/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.77E-02 0.00E+00 3.77E-02 Cs-134 <3.03E-02 0.00E+00 3.03E-02 Cs-137 <3.74E-02 0.00E+00 3.74E-02 Be-7 <2.98E-01 0.00E+00 2.98E-01 K-40 1.07E+00 3.01E-01 6.03E-01 Sample ID: 272467 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.93E-02 0.00E+00 4.93E-02 Cs-134 <4.41E-02 0.00E+00 4.41E-02 Cs-137 <3.41E-02 0.00E+00 3.41E-02 Be-7 <2.26E-01 0.00E+00 2.26E-01 K-40 <1.08E+00 0.00E+00 1.08E+00 Sample ID: 272867 Sample Dates: 10/21/2013 - 10/28/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-137 <2.93E-02 0.00E+00 2.93E-02 Be-7 <1.00E-01 0.00E+00 1.00E-01 K-40 9.32E-01 1.90E-01 2.85E-01 Sample ID: 273958 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.75E-02 0.00E+00 3.75E-02 Cs-134 <2.44E-02 0.00E+00 2.44E-02 Cs-137 <2.82E-02 0.00E+00 2.82E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 7.32E-01 1.78E-01 4.22E-01 Sample ID: 274405 Sample Dates: 11/4/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD I-131 <5.56E-02 0.00E+00 5.56E-02 Cs-134 <4.21E-02 0.00E+00 4.21E-02 Cs-137 <3.98E-02 0.00E+00 3.98E-02 Be-7 <3.14E-01 0.00E+00 3.14E-01 K-40 <1.31E+00 0.00E+00 1.31E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 71 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 91 [ INDICATOR - ENE @ 1.6 miles ] 91 Sample ID: 274919 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.98E-02 0.00E+00 4.98E-02 Cs-134 <3.83E-02 0.00E+00 3.83E-02 Cs-137 <3.54E-02 0.00E+00 3.54E-02 Be-7 <2.93E-01 0.00E+00 2.93E-01 K-40 8.93E-01 2.72E-01 5.12E-01 Sample ID: 276473 Sample Dates: 11/18/2013 - 11/25/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.94E-02 0.00E+00 4.94E-02 Cs-134 <2.97E-02 0.00E+00 2.97E-02 Cs-137 <2.92E-02 0.00E+00 2.92E-02 Be-7 <2.08E-01 0.00E+00 2.08E-01 K-40 8.61E-01 1.93E-01 1.16E-01 Sample ID: 277389 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.67E-02 0.00E+00 1.67E-02 Cs-134 <1.88E-02 0.00E+00 1.88E-02 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.30E-01 0.00E+00 1.30E-01 K-40 7.13E-01 1.50E-01 2.15E-01 Sample ID: 278721 Sample Dates: 12/2/2013 - 12/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.39E-02 0.00E+00 3.39E-02 Cs-134 <3.76E-02 0.00E+00 3.76E-02 Cs-137 <3.88E-02 0.00E+00 3.88E-02 Be-7 <2.18E-01 0.00E+00 2.18E-01 K-40 5.72E-01 1.81E-01 1.55E-01 Sample ID: 278994 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD I-131 <4.70E-02 0.00E+00 4.70E-02 Cs-134 <4.56E-02 0.00E+00 4.56E-02 Cs-137 <4.39E-02 0.00E+00 4.39E-02 Be-7 <2.17E-01 0.00E+00 2.17E-01 K-40 7.26E-01 2.01E-01 6.19E-01 Sample ID: 279640 Sample Dates: 12/16/2013 - 12/23/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.63E-02 0.00E+00 1.63E-02 Cs-134 <8.53E-03 0.00E+00 8.53E-03 Cs-137 <1.04E-02 0.00E+00 1.04E-02 Be-7 <7.31E-02 0.00E+00 7.31E-02 K-40 1.04E+00 1.01E-01 1.08E-01 Sample ID: 280118 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <2.09E-02 0.00E+00 2.09E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.28E-01 0.00E+00 1.28E-01 K-40 9.83E-01 1.52E-01 2.14E-01 Media Type: AQUATIC VEGETATION Concentration (Activity): pCi/kg Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 272766 Sample Dates: 10/9/2013 - 10/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <1.09E+01 0.00E+00 1.09E+01 Cs-134 <1.41E+01 0.00E+00 1.41E+01 Cs-137 <1.30E+01 0.00E+00 1.30E+01 Be-7 3.66E+02 7.05E+01 1.28E+02 K-40 1.34E+03 1.41E+02 1.53E+02 Sample Point 41 [ INDICATOR - S @ 3.8 miles ] 41 Sample ID: 272767 Sample Dates: 10/9/2013 - 10/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <2.23E+01 0.00E+00 2.23E+01 Cs-134 <1.61E+01 0.00E+00 1.61E+01 Cs-137 <2.13E+01 0.00E+00 2.13E+01 Be-7 2.27E+02 6.25E+01 1.46E+02 K-40 1.84E+03 2.21E+02 2.29E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 72 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: AQUATIC VEGETATION Concentration (Activity): pCi/kg Sample Point 61 [ CONTROL - E @ 2.5 miles ] 61 Sample ID: 272768 Sample Dates: 10/9/2013 - 10/9/2013 Nuclide Activity 1 Sigma Error LLD I-131 <3.95E+01 0.00E+00 3.95E+01 Cs-134 <2.94E+01 0.00E+00 2.94E+01 Cs-137 <3.23E+01 0.00E+00 3.23E+01 Be-7 <3.03E+02 0.00E+00 3.03E+02 K-40 3.31E+03 2.33E+02 2.06E+02 Media Type: CROPS Concentration (Activity): pCi/kg Sample Point 5 [ CONTROL - NNW @ 12 miles ] 5 Sample ID: 262843 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype TOMATOES I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <8.40E+00 0.00E+00 8.40E+00 Cs-137 <1.10E+01 0.00E+00 1.10E+01 Be-7 <8.23E+01 0.00E+00 8.23E+01 K-40 2.15E+03 1.34E+02 1.24E+02 Sample ID: 265254 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype TOMATOES I-131 <1.25E+01 0.00E+00 1.25E+01 Cs-134 <1.10E+01 0.00E+00 1.10E+01 Cs-137 <1.58E+01 0.00E+00 1.58E+01 Be-7 <1.43E+02 0.00E+00 1.43E+02 K-40 1.99E+03 1.83E+02 1.50E+02 Sample ID: 266157 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype OKRA I-131 <1.32E+01 0.00E+00 1.32E+01 Cs-134 <1.30E+01 0.00E+00 1.30E+01 Cs-137 <1.22E+01 0.00E+00 1.22E+01 Be-7 <8.69E+01 0.00E+00 8.69E+01 K-40 2.87E+03 1.94E+02 1.35E+02 Sample Point 55 [ INDICATOR - NNW @ 2 miles ] 55 Sample ID: 250825 Sample Dates: 1/14/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype COLLARDS I-131 <1.20E+01 0.00E+00 1.20E+01 Cs-134 <1.37E+01 0.00E+00 1.37E+01 Cs-137 <1.77E+01 0.00E+00 1.77E+01 Be-7 <1.21E+02 0.00E+00 1.21E+02 K-40 3.18E+03 1.86E+02 1.72E+02 Sample ID: 252963 Sample Dates: 2/18/2013 - 2/18/2013 Nuclide Activity 1 Sigma Error LLD Subtype COLLARDS I-131 <2.10E+01 0.00E+00 2.10E+01 Cs-134 <1.88E+01 0.00E+00 1.88E+01 Cs-137 <3.30E+01 0.00E+00 3.30E+01 Be-7 <2.14E+02 0.00E+00 2.14E+02 K-40 4.15E+03 3.27E+02 2.67E+02 Sample ID: 255221 Sample Dates: 3/18/2013 - 3/18/2013 Nuclide Activity 1 Sigma Error LLD Subtype COLLARDS I-131 <1.79E+01 0.00E+00 1.79E+01 Cs-134 <1.63E+01 0.00E+00 1.63E+01 Cs-137 <2.05E+01 0.00E+00 2.05E+01 Be-7 <1.94E+02 0.00E+00 1.94E+02 K-40 3.86E+03 2.48E+02 1.66E+02 Sample ID: 269939 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype COLLARDS I-131 <1.78E+01 0.00E+00 1.78E+01 Cs-134 <1.20E+01 0.00E+00 1.20E+01 Cs-137 <2.12E+01 0.00E+00 2.12E+01 Be-7 <1.38E+02 0.00E+00 1.38E+02 K-40 4.14E+03 2.74E+02 1.71E+02 Sample ID: 275118 Sample Dates: 11/11/2013 - 11/11/2013 Nuclide Activity 1 Sigma Error LLD Subtype COLLARDS I-131 <1.24E+01 0.00E+00 1.24E+01 Cs-134 <1.00E+01 0.00E+00 1.00E+01 Cs-137 <1.26E+01 0.00E+00 1.26E+01 Be-7 1.21E+02 5.55E+01 1.03E+02 K-40 4.16E+03 2.01E+02 9.73E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 73 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 51 [ INDICATOR - -- @ 0 miles ] 51 Sample ID: 251067 Sample Dates: 1/7/2013 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.01E+00 0.00E+00 3.01E+00 K-40 1.38E+01 2.06E+00 3.86E+00 LLI-131 <6.02E-01 0.00E+00 6.02E-01 Sample ID: 251831 Sample Dates: 1/21/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <4.05E+00 0.00E+00 4.05E+00 K-40 1.40E+01 2.51E+00 7.06E+00 LLI-131 <5.61E-01 0.00E+00 5.61E-01 Sample ID: 251896 Sample Dates: 1/7/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.01E+00 4.16E-01 1.26E+00 Mn-54 <2.62E+00 0.00E+00 2.62E+00 Co-58 <3.39E+00 0.00E+00 3.39E+00 Fe-59 <8.03E+00 0.00E+00 8.03E+00 Co-60 <3.37E+00 0.00E+00 3.37E+00 Zn-65 <5.65E+00 0.00E+00 5.65E+00 Zr-95 <4.93E+00 0.00E+00 4.93E+00 Nb-95 <4.68E+00 0.00E+00 4.68E+00 I-131 <1.23E+01 0.00E+00 1.23E+01 Cs-134 <2.79E+00 0.00E+00 2.79E+00 Cs-137 <3.77E+00 0.00E+00 3.77E+00 BaLa-140 <8.54E+00 0.00E+00 8.54E+00 Be-7 <3.20E+01 0.00E+00 3.20E+01 K-40 8.04E+01 1.50E+01 3.40E+01 H3DW 7.61E+03 1.28E+02 1.59E+02 Sample ID: 252914 Sample Dates: 2/4/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.17E+00 0.00E+00 3.17E+00 K-40 1.00E+01 3.01E+00 6.92E+00 LLI-131 <6.12E-01 0.00E+00 6.12E-01 Sample ID: 254117 Sample Dates: 2/18/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.65E+00 0.00E+00 1.65E+00 K-40 1.23E+01 1.35E+00 1.67E+00 LLI-131 <6.26E-01 0.00E+00 6.26E-01 Sample ID: 254121 Sample Dates: 2/4/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.27E+00 4.54E-01 1.39E+00 Mn-54 <3.49E+00 0.00E+00 3.49E+00 Co-58 <3.58E+00 0.00E+00 3.58E+00 Fe-59 <1.02E+01 0.00E+00 1.02E+01 Co-60 <4.87E+00 0.00E+00 4.87E+00 Zn-65 <1.03E+01 0.00E+00 1.03E+01 Zr-95 <7.86E+00 0.00E+00 7.86E+00 Nb-95 <5.32E+00 0.00E+00 5.32E+00 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <3.71E+00 0.00E+00 3.71E+00 Cs-137 <4.36E+00 0.00E+00 4.36E+00 BaLa-140 <8.95E+00 0.00E+00 8.95E+00 Be-7 <3.61E+01 0.00E+00 3.61E+01 K-40 1.76E+02 2.75E+01 3.87E+01 H3DW 7.41E+03 1.27E+02 1.55E+02 Sample ID: 255083 Sample Dates: 3/4/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.62E+00 0.00E+00 3.62E+00 K-40 2.23E+01 3.06E+00 5.62E+00 LLI-131 <6.41E-01 0.00E+00 6.41E-01 Sample ID: 255968 Sample Dates: 3/11/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.02E+00 0.00E+00 2.02E+00 K-40 1.15E+01 1.80E+00 2.94E+00 LLI-131 <6.39E-01 0.00E+00 6.39E-01 Sample ID: 255973 Sample Dates: 3/4/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.73E+00 4.47E-01 1.32E+00 Mn-54 <3.27E+00 0.00E+00 3.27E+00 Co-58 <4.50E+00 0.00E+00 4.50E+00 Fe-59 <7.40E+00 0.00E+00 7.40E+00 Co-60 <5.87E+00 0.00E+00 5.87E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 74 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 51 [ INDICATOR - -- @ 0 miles ] 51 Sample ID: 255973 Sample Dates: 3/4/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Zn-65 <1.10E+01 0.00E+00 1.10E+01 Zr-95 <8.18E+00 0.00E+00 8.18E+00 Nb-95 <4.51E+00 0.00E+00 4.51E+00 I-131 <1.14E+01 0.00E+00 1.14E+01 Cs-134 <3.73E+00 0.00E+00 3.73E+00 Cs-137 <4.16E+00 0.00E+00 4.16E+00 BaLa-140 <9.75E+00 0.00E+00 9.75E+00 Be-7 <3.24E+01 0.00E+00 3.24E+01 K-40 5.31E+01 1.88E+01 5.69E+01 H3DW 6.46E+03 1.22E+02 1.74E+02 Sample ID: 256456 Sample Dates: 3/25/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.86E+00 0.00E+00 2.86E+00 K-40 1.37E+01 2.57E+00 3.80E+00 LLI-131 <6.44E-01 0.00E+00 6.44E-01 Sample ID: 256984 Sample Dates: 4/1/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.36E+00 4.54E-01 1.38E+00 Mn-54 <3.93E+00 0.00E+00 3.93E+00 Co-58 <6.54E+00 0.00E+00 6.54E+00 Fe-59 <1.28E+01 0.00E+00 1.28E+01 Co-60 <6.95E+00 0.00E+00 6.95E+00 Zn-65 <1.16E+01 0.00E+00 1.16E+01 Zr-95 <5.70E+00 0.00E+00 5.70E+00 Nb-95 <6.44E+00 0.00E+00 6.44E+00 I-131 <1.42E+01 0.00E+00 1.42E+01 Cs-134 <3.45E+00 0.00E+00 3.45E+00 Cs-137 <4.70E+00 0.00E+00 4.70E+00 BaLa-140 <1.43E+01 0.00E+00 1.43E+01 Be-7 <4.32E+01 0.00E+00 4.32E+01 K-40 1.18E+02 2.27E+01 4.59E+01 H3DW 6.63E+03 1.24E+02 1.72E+02 Sample ID: 256990 Sample Dates: 4/8/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.41E+00 0.00E+00 2.41E+00 K-40 2.07E+01 2.15E+00 3.48E+00 LLI-131 <5.42E-01 0.00E+00 5.42E-01 Sample ID: 257816 Sample Dates: 4/29/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.56E+00 0.00E+00 3.56E+00 K-40 1.40E+01 4.84E+00 6.57E+00 LLI-131 <6.44E-01 0.00E+00 6.44E-01 Sample ID: 258356 Sample Dates: 5/13/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.81E+00 0.00E+00 2.81E+00 K-40 1.12E+01 2.54E+00 4.70E+00 LLI-131 <6.14E-01 0.00E+00 6.14E-01 Sample ID: 258361 Sample Dates: 4/29/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.82E+00 4.45E-01 1.38E+00 Mn-54 <3.92E+00 0.00E+00 3.92E+00 Co-58 <4.82E+00 0.00E+00 4.82E+00 Fe-59 <8.13E+00 0.00E+00 8.13E+00 Co-60 <5.88E+00 0.00E+00 5.88E+00 Zn-65 <6.69E+00 0.00E+00 6.69E+00 Zr-95 <8.34E+00 0.00E+00 8.34E+00 Nb-95 <5.29E+00 0.00E+00 5.29E+00 I-131 <1.36E+01 0.00E+00 1.36E+01 Cs-134 <2.96E+00 0.00E+00 2.96E+00 Cs-137 <4.41E+00 0.00E+00 4.41E+00 BaLa-140 <7.70E+00 0.00E+00 7.70E+00 Be-7 <3.60E+01 0.00E+00 3.60E+01 K-40 7.35E+01 1.96E+01 4.10E+01 H3DW 5.89E+03 1.20E+02 1.79E+02 Sample ID: 259180 Sample Dates: 5/27/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.90E+00 0.00E+00 1.90E+00 K-40 3.83E+01 1.86E+00 2.20E+00 LLI-131 <5.66E-01 0.00E+00 5.66E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 75 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 51 [ INDICATOR - -- @ 0 miles ] 51 Sample ID: 260562 Sample Dates: 5/27/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.42E+00 4.69E-01 1.43E+00 Mn-54 <5.34E+00 0.00E+00 5.34E+00 Co-58 <5.17E+00 0.00E+00 5.17E+00 Fe-59 <7.38E+00 0.00E+00 7.38E+00 Co-60 <3.80E+00 0.00E+00 3.80E+00 Zn-65 <8.80E+00 0.00E+00 8.80E+00 Zr-95 <1.06E+01 0.00E+00 1.06E+01 Nb-95 <6.41E+00 0.00E+00 6.41E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <4.12E+00 0.00E+00 4.12E+00 Cs-137 <4.76E+00 0.00E+00 4.76E+00 BaLa-140 <7.29E+00 0.00E+00 7.29E+00 Be-7 <4.49E+01 0.00E+00 4.49E+01 K-40 1.93E+02 2.93E+01 3.83E+01 H3DW 5.97E+03 1.21E+02 1.77E+02 Sample ID: 260566 Sample Dates: 6/10/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.47E+00 0.00E+00 3.47E+00 K-40 3.71E+01 4.50E+00 4.11E+00 LLI-131 <6.07E-01 0.00E+00 6.07E-01 Sample ID: 261854 Sample Dates: 6/24/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.25E+00 0.00E+00 3.25E+00 K-40 1.73E+01 2.82E+00 4.17E+00 LLI-131 <6.33E-01 0.00E+00 6.33E-01 Sample ID: 263066 Sample Dates: 7/8/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.37E+00 0.00E+00 3.37E+00 K-40 2.60E+01 2.87E+00 5.25E+00 LLI-131 <6.07E-01 0.00E+00 6.07E-01 Sample ID: 263070 Sample Dates: 6/24/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.25E+00 4.37E-01 1.24E+00 Mn-54 <4.49E+00 0.00E+00 4.49E+00 Co-58 <4.50E+00 0.00E+00 4.50E+00 Fe-59 <8.39E+00 0.00E+00 8.39E+00 Co-60 <5.27E+00 0.00E+00 5.27E+00 Zn-65 <1.05E+01 0.00E+00 1.05E+01 Zr-95 <7.05E+00 0.00E+00 7.05E+00 Nb-95 <5.73E+00 0.00E+00 5.73E+00 I-131 <1.35E+01 0.00E+00 1.35E+01 Cs-134 <3.98E+00 0.00E+00 3.98E+00 Cs-137 <4.19E+00 0.00E+00 4.19E+00 BaLa-140 <1.03E+01 0.00E+00 1.03E+01 Be-7 <3.63E+01 0.00E+00 3.63E+01 K-40 2.41E+02 2.73E+01 3.66E+01 H3DW 5.62E+03 1.15E+02 1.68E+02 Sample ID: 264616 Sample Dates: 7/22/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.36E+00 0.00E+00 3.36E+00 K-40 3.96E+01 3.43E+00 4.37E+00 LLI-131 <6.19E-01 0.00E+00 6.19E-01 Sample ID: 266206 Sample Dates: 8/5/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.85E+00 0.00E+00 2.85E+00 K-40 2.38E+01 3.08E+00 4.59E+00 LLI-131 <5.02E-01 0.00E+00 5.02E-01 Sample ID: 266505 Sample Dates: 7/22/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.06E+00 4.61E-01 1.43E+00 Mn-54 <4.97E+00 0.00E+00 4.97E+00 Co-58 <5.22E+00 0.00E+00 5.22E+00 Fe-59 <1.10E+01 0.00E+00 1.10E+01 Co-60 <7.20E+00 0.00E+00 7.20E+00 Zn-65 <1.17E+01 0.00E+00 1.17E+01 Zr-95 <1.21E+01 0.00E+00 1.21E+01 Nb-95 <6.02E+00 0.00E+00 6.02E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <5.13E+00 0.00E+00 5.13E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 76 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 51 [ INDICATOR - -- @ 0 miles ] 51 Sample ID: 266505 Sample Dates: 7/22/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <5.19E+00 0.00E+00 5.19E+00 BaLa-140 <9.13E+00 0.00E+00 9.13E+00 Be-7 <5.62E+01 0.00E+00 5.62E+01 K-40 1.00E+02 2.30E+01 4.79E+01 H3DW 3.47E+03 9.58E+01 1.70E+02 Sample ID: 267952 Sample Dates: 8/19/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.31E+00 0.00E+00 3.31E+00 K-40 1.53E+01 3.23E+00 5.04E+00 LLI-131 <5.81E-01 0.00E+00 5.81E-01 Sample ID: 269888 Sample Dates: 9/3/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.73E+00 0.00E+00 2.73E+00 K-40 1.16E+01 3.29E+00 4.07E+00 LLI-131 <5.29E-01 0.00E+00 5.29E-01 Sample ID: 269892 Sample Dates: 8/19/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.40E+00 4.36E-01 1.31E+00 Mn-54 <4.84E+00 0.00E+00 4.84E+00 Co-58 <4.04E+00 0.00E+00 4.04E+00 Fe-59 <7.89E+00 0.00E+00 7.89E+00 Co-60 <5.48E+00 0.00E+00 5.48E+00 Zn-65 <1.02E+01 0.00E+00 1.02E+01 Zr-95 <9.79E+00 0.00E+00 9.79E+00 Nb-95 <6.06E+00 0.00E+00 6.06E+00 I-131 <1.33E+01 0.00E+00 1.33E+01 Cs-134 <3.85E+00 0.00E+00 3.85E+00 Cs-137 <5.76E+00 0.00E+00 5.76E+00 BaLa-140 <1.25E+01 0.00E+00 1.25E+01 Be-7 <4.07E+01 0.00E+00 4.07E+01 K-40 1.57E+02 3.18E+01 4.77E+01 H3DW 4.11E+03 9.62E+01 1.51E+02 Sample ID: 271641 Sample Dates: 9/16/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <4.67E+00 0.00E+00 4.67E+00 K-40 1.21E+01 2.20E+00 6.74E+00 LLI-131 <6.47E-01 0.00E+00 6.47E-01 Sample ID: 272602 Sample Dates: 9/30/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.51E+00 0.00E+00 3.51E+00 K-40 1.22E+01 3.76E+00 5.54E+00 LLI-131 <6.49E-01 0.00E+00 6.49E-01 Sample ID: 272606 Sample Dates: 9/16/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.99E+00 4.23E-01 1.21E+00 Mn-54 <4.48E+00 0.00E+00 4.48E+00 Co-58 <3.38E+00 0.00E+00 3.38E+00 Fe-59 <9.55E+00 0.00E+00 9.55E+00 Co-60 <5.09E+00 0.00E+00 5.09E+00 Zn-65 <1.07E+01 0.00E+00 1.07E+01 Zr-95 <8.02E+00 0.00E+00 8.02E+00 Nb-95 <5.63E+00 0.00E+00 5.63E+00 I-131 <1.30E+01 0.00E+00 1.30E+01 Cs-134 <3.93E+00 0.00E+00 3.93E+00 Cs-137 <3.74E+00 0.00E+00 3.74E+00 BaLa-140 <9.01E+00 0.00E+00 9.01E+00 Be-7 <4.20E+01 0.00E+00 4.20E+01 K-40 1.04E+02 2.02E+01 4.44E+01 H3DW 2.55E+03 8.22E+01 1.55E+02 Sample ID: 274159 Sample Dates: 10/14/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.88E+00 0.00E+00 3.88E+00 K-40 <1.10E+01 0.00E+00 1.10E+01 LLI-131 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 274976 Sample Dates: 10/28/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.20E+00 0.00E+00 3.20E+00 K-40 3.85E+01 4.35E+00 4.91E+00 LLI-131 <6.49E-01 0.00E+00 6.49E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 77 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 51 [ INDICATOR - -- @ 0 miles ] 51 Sample ID: 274980 Sample Dates: 10/14/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.74E+00 4.15E-01 1.20E+00 Mn-54 <5.43E+00 0.00E+00 5.43E+00 Co-58 <5.42E+00 0.00E+00 5.42E+00 Fe-59 <1.28E+01 0.00E+00 1.28E+01 Co-60 <6.01E+00 0.00E+00 6.01E+00 Zn-65 <9.28E+00 0.00E+00 9.28E+00 Zr-95 <9.74E+00 0.00E+00 9.74E+00 Nb-95 <6.00E+00 0.00E+00 6.00E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <5.01E+00 0.00E+00 5.01E+00 Cs-137 <5.64E+00 0.00E+00 5.64E+00 BaLa-140 <1.06E+01 0.00E+00 1.06E+01 Be-7 <4.54E+01 0.00E+00 4.54E+01 K-40 1.67E+02 2.80E+01 5.42E+01 H3DW 2.70E+03 9.00E+01 1.76E+02 Sample ID: 277333 Sample Dates: 11/11/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.06E+00 0.00E+00 3.06E+00 K-40 3.76E+01 4.23E+00 5.10E+00 LLI-131 <6.02E-01 0.00E+00 6.02E-01 Sample ID: 279169 Sample Dates: 11/25/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.75E+00 0.00E+00 2.75E+00 K-40 1.10E+01 1.89E+00 3.67E+00 LLI-131 <5.25E-01 0.00E+00 5.25E-01 Sample ID: 279173 Sample Dates: 11/11/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.06E+00 4.15E-01 1.26E+00 Mn-54 <5.16E+00 0.00E+00 5.16E+00 Co-58 <4.98E+00 0.00E+00 4.98E+00 Fe-59 <9.23E+00 0.00E+00 9.23E+00 Co-60 <6.62E+00 0.00E+00 6.62E+00 Zn-65 <1.32E+01 0.00E+00 1.32E+01 Zr-95 <8.97E+00 0.00E+00 8.97E+00 Nb-95 <6.94E+00 0.00E+00 6.94E+00 I-131 <1.36E+01 0.00E+00 1.36E+01 Cs-134 <4.67E+00 0.00E+00 4.67E+00 Cs-137 <5.86E+00 0.00E+00 5.86E+00 BaLa-140 <1.36E+01 0.00E+00 1.36E+01 Be-7 <4.65E+01 0.00E+00 4.65E+01 K-40 6.16E+01 1.71E+01 6.04E+01 H3DW 8.81E+03 1.43E+02 1.70E+02 Sample ID: 280452 Sample Dates: 12/9/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.23E+00 0.00E+00 3.23E+00 K-40 4.98E+01 3.54E+00 4.21E+00 LLI-131 <6.24E-01 0.00E+00 6.24E-01 Sample ID: 280952 Sample Dates: 12/23/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.13E+00 0.00E+00 3.13E+00 K-40 4.44E+01 3.24E+00 3.82E+00 LLI-131 <5.74E-01 0.00E+00 5.74E-01 Sample ID: 280953 Sample Dates: 12/9/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.37E+00 4.02E-01 1.18E+00 Mn-54 <2.82E+00 0.00E+00 2.82E+00 Co-58 <6.10E+00 0.00E+00 6.10E+00 Fe-59 <1.29E+01 0.00E+00 1.29E+01 Co-60 <6.48E+00 0.00E+00 6.48E+00 Zn-65 <1.33E+01 0.00E+00 1.33E+01 Zr-95 <1.06E+01 0.00E+00 1.06E+01 Nb-95 <7.82E+00 0.00E+00 7.82E+00 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <4.38E+00 0.00E+00 4.38E+00 Cs-137 <5.58E+00 0.00E+00 5.58E+00 BaLa-140 <9.74E+00 0.00E+00 9.74E+00 Be-7 <4.80E+01 0.00E+00 4.80E+01 K-40 4.13E+01 2.42E+01 4.71E+01 H3DW 9.34E+03 1.59E+02 2.29E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 78 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 38 [ CONTROL - WSW @ 6.2 miles ] 38 Sample ID: 251065 Sample Dates: 12/31/2012 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.78E+00 0.00E+00 2.78E+00 K-40 2.46E+01 3.01E+00 3.65E+00 LLI-131 <6.13E-01 0.00E+00 6.13E-01 Sample ID: 251832 Sample Dates: 1/14/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.67E+00 0.00E+00 2.67E+00 K-40 5.79E+00 2.54E+00 5.39E+00 LLI-131 <5.56E-01 0.00E+00 5.56E-01 Sample ID: 251893 Sample Dates: 12/31/2012 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.01E+00 4.67E-01 1.29E+00 Mn-54 <3.11E+00 0.00E+00 3.11E+00 Co-58 <4.44E+00 0.00E+00 4.44E+00 Fe-59 <9.13E+00 0.00E+00 9.13E+00 Co-60 <4.61E+00 0.00E+00 4.61E+00 Zn-65 <6.94E+00 0.00E+00 6.94E+00 Zr-95 <7.20E+00 0.00E+00 7.20E+00 Nb-95 <4.66E+00 0.00E+00 4.66E+00 I-131 <1.31E+01 0.00E+00 1.31E+01 Cs-134 <3.42E+00 0.00E+00 3.42E+00 Cs-137 <4.36E+00 0.00E+00 4.36E+00 BaLa-140 <9.49E+00 0.00E+00 9.49E+00 Be-7 <3.10E+01 0.00E+00 3.10E+01 K-40 1.88E+02 1.85E+01 3.04E+01 H3DWSW <6.73E+00 0.00E+00 1.60E+02 Sample ID: 252915 Sample Dates: 1/28/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.51E+00 0.00E+00 3.51E+00 K-40 2.85E+01 3.32E+00 4.72E+00 LLI-131 <6.08E-01 0.00E+00 6.08E-01 Sample ID: 254115 Sample Dates: 2/11/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.62E+00 0.00E+00 2.62E+00 K-40 4.56E+01 2.37E+00 3.07E+00 LLI-131 <6.18E-01 0.00E+00 6.18E-01 Sample ID: 254119 Sample Dates: 1/28/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.87E+00 4.70E-01 1.41E+00 Mn-54 <3.39E+00 0.00E+00 3.39E+00 Co-58 <3.50E+00 0.00E+00 3.50E+00 Fe-59 <8.40E+00 0.00E+00 8.40E+00 Co-60 <4.59E+00 0.00E+00 4.59E+00 Zn-65 <7.50E+00 0.00E+00 7.50E+00 Zr-95 <6.77E+00 0.00E+00 6.77E+00 Nb-95 <4.33E+00 0.00E+00 4.33E+00 I-131 <1.42E+01 0.00E+00 1.42E+01 Cs-134 <3.42E+00 0.00E+00 3.42E+00 Cs-137 <3.73E+00 0.00E+00 3.73E+00 BaLa-140 <1.16E+01 0.00E+00 1.16E+01 Be-7 <3.43E+01 0.00E+00 3.43E+01 K-40 <6.29E+01 0.00E+00 6.29E+01 H3DWSW <2.65E+01 0.00E+00 1.54E+02 Sample ID: 255081 Sample Dates: 2/25/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.58E+00 0.00E+00 2.58E+00 K-40 8.65E+00 1.99E+00 4.25E+00 LLI-131 <5.41E-01 0.00E+00 5.41E-01 Sample ID: 255970 Sample Dates: 3/11/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.00E+00 0.00E+00 2.00E+00 K-40 2.59E+01 1.59E+00 2.41E+00 LLI-131 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 255974 Sample Dates: 2/25/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.18E+00 4.56E-01 1.32E+00 Mn-54 <3.17E+00 0.00E+00 3.17E+00 Co-58 <3.98E+00 0.00E+00 3.98E+00 Fe-59 <7.74E+00 0.00E+00 7.74E+00 Co-60 <4.45E+00 0.00E+00 4.45E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 79 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 38 [ CONTROL - WSW @ 6.2 miles ] 38 Sample ID: 255974 Sample Dates: 2/25/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Zn-65 <7.69E+00 0.00E+00 7.69E+00 Zr-95 <7.20E+00 0.00E+00 7.20E+00 Nb-95 <4.58E+00 0.00E+00 4.58E+00 I-131 <1.13E+01 0.00E+00 1.13E+01 Cs-134 <3.51E+00 0.00E+00 3.51E+00 Cs-137 <3.81E+00 0.00E+00 3.81E+00 BaLa-140 <1.06E+01 0.00E+00 1.06E+01 Be-7 <3.09E+01 0.00E+00 3.09E+01 K-40 1.10E+02 1.92E+01 3.68E+01 H3DWSW <-9.2E+01 0.00E+00 1.74E+02 Sample ID: 256454 Sample Dates: 3/25/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.74E+00 0.00E+00 2.74E+00 K-40 2.19E+01 2.99E+00 3.44E+00 LLI-131 <5.96E-01 0.00E+00 5.96E-01 Sample ID: 256982 Sample Dates: 3/25/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 1.13E+00 4.27E-01 1.38E+00 Mn-54 <2.77E+00 0.00E+00 2.77E+00 Co-58 <2.41E+00 0.00E+00 2.41E+00 Fe-59 <7.03E+00 0.00E+00 7.03E+00 Co-60 <2.89E+00 0.00E+00 2.89E+00 Zn-65 <6.54E+00 0.00E+00 6.54E+00 Zr-95 <5.22E+00 0.00E+00 5.22E+00 Nb-95 <3.94E+00 0.00E+00 3.94E+00 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <2.32E+00 0.00E+00 2.32E+00 Cs-137 <2.58E+00 0.00E+00 2.58E+00 BaLa-140 <8.12E+00 0.00E+00 8.12E+00 Be-7 <2.67E+01 0.00E+00 2.67E+01 K-40 1.11E+02 1.50E+01 2.68E+01 H3DWSW <4.15E+01 0.00E+00 1.72E+02 Sample ID: 256987 Sample Dates: 4/8/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.33E+00 0.00E+00 2.33E+00 K-40 1.21E+01 1.68E+00 2.55E+00 LLI-131 <5.55E-01 0.00E+00 5.55E-01 Sample ID: 257817 Sample Dates: 4/22/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.31E+00 0.00E+00 2.31E+00 K-40 1.52E+01 2.21E+00 2.85E+00 LLI-131 <5.19E-01 0.00E+00 5.19E-01 Sample ID: 258354 Sample Dates: 5/6/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.77E+00 0.00E+00 2.77E+00 K-40 2.58E+01 2.51E+00 3.18E+00 LLI-131 <6.42E-01 0.00E+00 6.42E-01 Sample ID: 258358 Sample Dates: 4/22/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.29E+00 4.52E-01 1.38E+00 Mn-54 <2.97E+00 0.00E+00 2.97E+00 Co-58 <3.26E+00 0.00E+00 3.26E+00 Fe-59 <8.57E+00 0.00E+00 8.57E+00 Co-60 <3.73E+00 0.00E+00 3.73E+00 Zn-65 <6.17E+00 0.00E+00 6.17E+00 Zr-95 <6.90E+00 0.00E+00 6.90E+00 Nb-95 <4.47E+00 0.00E+00 4.47E+00 I-131 <1.36E+01 0.00E+00 1.36E+01 Cs-134 <3.05E+00 0.00E+00 3.05E+00 Cs-137 <3.17E+00 0.00E+00 3.17E+00 BaLa-140 <7.79E+00 0.00E+00 7.79E+00 Be-7 <3.53E+01 0.00E+00 3.53E+01 K-40 1.44E+02 2.32E+01 2.77E+01 H3DWSW <-2.6E+01 0.00E+00 1.40E+02 Sample ID: 259178 Sample Dates: 5/20/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.32E+00 0.00E+00 3.32E+00 K-40 3.88E+01 3.71E+00 4.37E+00 LLI-131 <6.47E-01 0.00E+00 6.47E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 80 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 38 [ CONTROL - WSW @ 6.2 miles ] 38 Sample ID: 260559 Sample Dates: 5/20/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.86E+00 4.79E-01 1.43E+00 Mn-54 <3.77E+00 0.00E+00 3.77E+00 Co-58 <3.51E+00 0.00E+00 3.51E+00 Fe-59 <7.29E+00 0.00E+00 7.29E+00 Co-60 <3.55E+00 0.00E+00 3.55E+00 Zn-65 <7.20E+00 0.00E+00 7.20E+00 Zr-95 <6.94E+00 0.00E+00 6.94E+00 Nb-95 <4.16E+00 0.00E+00 4.16E+00 I-131 <1.32E+01 0.00E+00 1.32E+01 Cs-134 <2.94E+00 0.00E+00 2.94E+00 Cs-137 <3.20E+00 0.00E+00 3.20E+00 BaLa-140 <1.01E+01 0.00E+00 1.01E+01 Be-7 <2.98E+01 0.00E+00 2.98E+01 K-40 <5.81E+01 0.00E+00 5.81E+01 H3DWSW <-6.3E+01 0.00E+00 1.82E+02 Sample ID: 260564 Sample Dates: 6/3/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.23E+00 0.00E+00 2.23E+00 K-40 4.21E+01 2.45E+00 2.84E+00 LLI-131 <5.23E-01 0.00E+00 5.23E-01 Sample ID: 261855 Sample Dates: 6/18/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.12E+00 0.00E+00 3.12E+00 K-40 4.21E+01 3.19E+00 4.03E+00 LLI-131 <6.47E-01 0.00E+00 6.47E-01 Sample ID: 263069 Sample Dates: 7/1/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.71E+00 0.00E+00 2.71E+00 K-40 3.87E+01 2.74E+00 3.15E+00 LLI-131 <5.50E-01 0.00E+00 5.50E-01 Sample ID: 263072 Sample Dates: 6/18/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.93E+00 4.51E-01 1.24E+00 Mn-54 <3.72E+00 0.00E+00 3.72E+00 Co-58 <3.51E+00 0.00E+00 3.51E+00 Fe-59 <8.72E+00 0.00E+00 8.72E+00 Co-60 <4.26E+00 0.00E+00 4.26E+00 Zn-65 <7.84E+00 0.00E+00 7.84E+00 Zr-95 <6.56E+00 0.00E+00 6.56E+00 Nb-95 <4.15E+00 0.00E+00 4.15E+00 I-131 <1.32E+01 0.00E+00 1.32E+01 Cs-134 <3.57E+00 0.00E+00 3.57E+00 Cs-137 <3.90E+00 0.00E+00 3.90E+00 BaLa-140 <9.94E+00 0.00E+00 9.94E+00 Be-7 <3.68E+01 0.00E+00 3.68E+01 K-40 1.56E+02 2.20E+01 3.44E+01 H3DWSW <6.07E+01 0.00E+00 1.74E+02 Sample ID: 264618 Sample Dates: 7/15/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.97E+00 0.00E+00 2.97E+00 K-40 1.15E+01 2.57E+00 4.12E+00 LLI-131 <6.48E-01 0.00E+00 6.48E-01 Sample ID: 266281 Sample Dates: 7/29/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.74E+00 0.00E+00 2.74E+00 K-40 4.56E+01 3.12E+00 3.29E+00 LLI-131 <5.71E-01 0.00E+00 5.71E-01 Sample ID: 266507 Sample Dates: 7/15/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.31E+00 4.84E-01 1.42E+00 Mn-54 <4.17E+00 0.00E+00 4.17E+00 Co-58 <4.07E+00 0.00E+00 4.07E+00 Fe-59 <8.46E+00 0.00E+00 8.46E+00 Co-60 <4.38E+00 0.00E+00 4.38E+00 Zn-65 <8.05E+00 0.00E+00 8.05E+00 Zr-95 <7.71E+00 0.00E+00 7.71E+00 Nb-95 <6.12E+00 0.00E+00 6.12E+00 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <3.85E+00 0.00E+00 3.85E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 81 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 38 [ CONTROL - WSW @ 6.2 miles ] 38 Sample ID: 266507 Sample Dates: 7/15/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <3.87E+00 0.00E+00 3.87E+00 BaLa-140 <9.27E+00 0.00E+00 9.27E+00 Be-7 <3.85E+01 0.00E+00 3.85E+01 K-40 1.65E+02 2.72E+01 4.16E+01 H3DWSW <1.60E+01 0.00E+00 1.72E+02 Sample ID: 267954 Sample Dates: 8/12/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.86E+00 0.00E+00 2.86E+00 K-40 1.54E+01 2.38E+00 3.63E+00 LLI-131 <6.26E-01 0.00E+00 6.26E-01 Sample ID: 269890 Sample Dates: 8/26/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.66E+00 0.00E+00 2.66E+00 K-40 1.74E+01 2.21E+00 3.64E+00 LLI-131 <6.24E-01 0.00E+00 6.24E-01 Sample ID: 269894 Sample Dates: 8/12/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.75E+00 4.69E-01 1.32E+00 Mn-54 <4.36E+00 0.00E+00 4.36E+00 Co-58 <4.55E+00 0.00E+00 4.55E+00 Fe-59 <1.04E+01 0.00E+00 1.04E+01 Co-60 <7.43E+00 0.00E+00 7.43E+00 Zn-65 <7.51E+00 0.00E+00 7.51E+00 Zr-95 <7.70E+00 0.00E+00 7.70E+00 Nb-95 <6.59E+00 0.00E+00 6.59E+00 I-131 <1.34E+01 0.00E+00 1.34E+01 Cs-134 <3.68E+00 0.00E+00 3.68E+00 Cs-137 <4.31E+00 0.00E+00 4.31E+00 BaLa-140 <1.37E+01 0.00E+00 1.37E+01 Be-7 <4.37E+01 0.00E+00 4.37E+01 K-40 7.47E+01 2.05E+01 3.97E+01 H3DWSW <8.99E+01 0.00E+00 1.51E+02 Sample ID: 271643 Sample Dates: 9/9/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.83E+00 0.00E+00 2.83E+00 K-40 1.30E+01 2.46E+00 4.26E+00 LLI-131 <6.50E-01 0.00E+00 6.50E-01 Sample ID: 272604 Sample Dates: 9/23/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.62E+00 0.00E+00 2.62E+00 K-40 4.09E+01 3.04E+00 3.33E+00 LLI-131 <5.76E-01 0.00E+00 5.76E-01 Sample ID: 272608 Sample Dates: 9/9/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.30E+00 4.82E-01 1.24E+00 Mn-54 <3.44E+00 0.00E+00 3.44E+00 Co-58 <3.93E+00 0.00E+00 3.93E+00 Fe-59 <7.33E+00 0.00E+00 7.33E+00 Co-60 <4.60E+00 0.00E+00 4.60E+00 Zn-65 <6.10E+00 0.00E+00 6.10E+00 Zr-95 <6.97E+00 0.00E+00 6.97E+00 Nb-95 <4.97E+00 0.00E+00 4.97E+00 I-131 <1.26E+01 0.00E+00 1.26E+01 Cs-134 <2.56E+00 0.00E+00 2.56E+00 Cs-137 <3.86E+00 0.00E+00 3.86E+00 BaLa-140 <6.97E+00 0.00E+00 6.97E+00 Be-7 <3.53E+01 0.00E+00 3.53E+01 K-40 6.02E+01 1.94E+01 3.40E+01 H3DWSW <-6.0E+01 0.00E+00 1.55E+02 Sample ID: 274160 Sample Dates: 10/7/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.74E+00 0.00E+00 2.74E+00 K-40 4.20E+01 2.73E+00 3.33E+00 LLI-131 <5.75E-01 0.00E+00 5.75E-01 Sample ID: 274978 Sample Dates: 10/21/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.55E+00 0.00E+00 1.55E+00 K-40 1.12E+01 1.26E+00 2.14E+00 LLI-131 <5.07E-01 0.00E+00 5.07E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 82 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 38 [ CONTROL - WSW @ 6.2 miles ] 38 Sample ID: 274982 Sample Dates: 10/7/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.62E+00 4.63E-01 1.23E+00 Mn-54 <2.96E+00 0.00E+00 2.96E+00 Co-58 <3.51E+00 0.00E+00 3.51E+00 Fe-59 <7.23E+00 0.00E+00 7.23E+00 Co-60 <4.82E+00 0.00E+00 4.82E+00 Zn-65 <7.17E+00 0.00E+00 7.17E+00 Zr-95 <5.77E+00 0.00E+00 5.77E+00 Nb-95 <4.09E+00 0.00E+00 4.09E+00 I-131 <1.24E+01 0.00E+00 1.24E+01 Cs-134 <3.02E+00 0.00E+00 3.02E+00 Cs-137 <3.58E+00 0.00E+00 3.58E+00 BaLa-140 <7.84E+00 0.00E+00 7.84E+00 Be-7 <3.32E+01 0.00E+00 3.32E+01 K-40 9.91E+01 2.09E+01 3.78E+01 H3DWSW <1.61E+01 0.00E+00 1.74E+02 Sample ID: 277331 Sample Dates: 11/4/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.63E+00 0.00E+00 2.63E+00 K-40 1.18E+01 2.18E+00 3.30E+00 LLI-131 <6.19E-01 0.00E+00 6.19E-01 Sample ID: 279171 Sample Dates: 11/18/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.62E+00 0.00E+00 1.62E+00 K-40 4.36E+01 1.83E+00 1.76E+00 LLI-131 <6.50E-01 0.00E+00 6.50E-01 Sample ID: 279175 Sample Dates: 11/4/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.21E+00 4.91E-01 1.30E+00 Mn-54 <3.48E+00 0.00E+00 3.48E+00 Co-58 <3.63E+00 0.00E+00 3.63E+00 Fe-59 <7.90E+00 0.00E+00 7.90E+00 Co-60 <3.43E+00 0.00E+00 3.43E+00 Zn-65 <6.27E+00 0.00E+00 6.27E+00 Zr-95 <7.33E+00 0.00E+00 7.33E+00 Nb-95 <4.71E+00 0.00E+00 4.71E+00 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <3.55E+00 0.00E+00 3.55E+00 Cs-137 <3.88E+00 0.00E+00 3.88E+00 BaLa-140 <9.42E+00 0.00E+00 9.42E+00 Be-7 <3.59E+01 0.00E+00 3.59E+01 K-40 1.87E+02 2.64E+01 3.47E+01 H3DWSW <3.65E+01 0.00E+00 1.71E+02 Sample ID: 280454 Sample Dates: 12/2/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.86E+00 0.00E+00 2.86E+00 K-40 2.28E+01 3.29E+00 3.84E+00 LLI-131 <6.37E-01 0.00E+00 6.37E-01 Sample ID: 280954 Sample Dates: 12/16/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.52E+00 0.00E+00 2.52E+00 K-40 4.09E+01 2.86E+00 3.64E+00 LLI-131 <6.49E-01 0.00E+00 6.49E-01 Sample ID: 280955 Sample Dates: 12/2/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.35E+00 4.52E-01 1.21E+00 Mn-54 <3.26E+00 0.00E+00 3.26E+00 Co-58 <3.30E+00 0.00E+00 3.30E+00 Fe-59 <7.85E+00 0.00E+00 7.85E+00 Co-60 <3.77E+00 0.00E+00 3.77E+00 Zn-65 <6.34E+00 0.00E+00 6.34E+00 Zr-95 <6.03E+00 0.00E+00 6.03E+00 Nb-95 <4.14E+00 0.00E+00 4.14E+00 I-131 <1.28E+01 0.00E+00 1.28E+01 Cs-134 <3.30E+00 0.00E+00 3.30E+00 Cs-137 <3.11E+00 0.00E+00 3.11E+00 BaLa-140 <8.55E+00 0.00E+00 8.55E+00 Be-7 <3.25E+01 0.00E+00 3.25E+01 K-40 2.11E+02 2.28E+01 2.68E+01 H3DWSW <-1.2E+02 0.00E+00 2.28E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 83 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ] 40 Sample ID: 251066 Sample Dates: 12/31/2012 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.60E+00 0.00E+00 2.60E+00 K-40 1.04E+01 3.73E+00 4.64E+00 LLI-131 <6.17E-01 0.00E+00 6.17E-01 Sample ID: 251833 Sample Dates: 1/14/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.28E+00 0.00E+00 2.28E+00 K-40 1.37E+01 2.07E+00 3.78E+00 LLI-131 <4.97E-01 0.00E+00 4.97E-01 Sample ID: 251895 Sample Dates: 12/31/2012 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.37E+00 4.73E-01 1.29E+00 Mn-54 <3.60E+00 0.00E+00 3.60E+00 Co-58 <3.63E+00 0.00E+00 3.63E+00 Fe-59 <6.41E+00 0.00E+00 6.41E+00 Co-60 <4.90E+00 0.00E+00 4.90E+00 Zn-65 <7.48E+00 0.00E+00 7.48E+00 Zr-95 <6.02E+00 0.00E+00 6.02E+00 Nb-95 <4.02E+00 0.00E+00 4.02E+00 I-131 <1.29E+01 0.00E+00 1.29E+01 Cs-134 <3.42E+00 0.00E+00 3.42E+00 Cs-137 <3.60E+00 0.00E+00 3.60E+00 BaLa-140 <1.19E+01 0.00E+00 1.19E+01 Be-7 <2.69E+01 0.00E+00 2.69E+01 K-40 4.99E+01 1.51E+01 3.67E+01 H3DWSW <7.09E+01 0.00E+00 1.58E+02 Sample ID: 252916 Sample Dates: 1/28/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.76E+00 0.00E+00 3.76E+00 K-40 8.16E+00 3.78E+00 5.70E+00 LLI-131 <6.24E-01 0.00E+00 6.24E-01 Sample ID: 254116 Sample Dates: 2/11/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.67E+00 0.00E+00 2.67E+00 K-40 1.33E+01 2.34E+00 3.66E+00 LLI-131 <6.36E-01 0.00E+00 6.36E-01 Sample ID: 254120 Sample Dates: 1/28/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.09E+00 4.71E-01 1.39E+00 Mn-54 <3.24E+00 0.00E+00 3.24E+00 Co-58 <3.52E+00 0.00E+00 3.52E+00 Fe-59 <7.39E+00 0.00E+00 7.39E+00 Co-60 <4.72E+00 0.00E+00 4.72E+00 Zn-65 <8.05E+00 0.00E+00 8.05E+00 Zr-95 <6.27E+00 0.00E+00 6.27E+00 Nb-95 <5.38E+00 0.00E+00 5.38E+00 I-131 <1.23E+01 0.00E+00 1.23E+01 Cs-134 <3.10E+00 0.00E+00 3.10E+00 Cs-137 <3.24E+00 0.00E+00 3.24E+00 BaLa-140 <7.16E+00 0.00E+00 7.16E+00 Be-7 <3.55E+01 0.00E+00 3.55E+01 K-40 6.29E+01 1.65E+01 3.45E+01 H3DWSW <4.39E+01 0.00E+00 1.53E+02 Sample ID: 255082 Sample Dates: 2/25/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.57E+00 0.00E+00 2.57E+00 K-40 1.57E+01 2.06E+00 3.93E+00 LLI-131 <5.68E-01 0.00E+00 5.68E-01 Sample ID: 255971 Sample Dates: 3/11/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.55E+00 0.00E+00 1.55E+00 K-40 3.80E+01 2.07E+00 1.96E+00 LLI-131 <5.60E-01 0.00E+00 5.60E-01 Sample ID: 255975 Sample Dates: 2/25/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.28E+00 4.31E-01 1.30E+00 Mn-54 <9.02E-01 0.00E+00 9.02E-01 Co-58 <1.03E+00 0.00E+00 1.03E+00 Fe-59 <2.36E+00 0.00E+00 2.36E+00 Co-60 <8.77E-01 0.00E+00 8.77E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 84 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ] 40 Sample ID: 255975 Sample Dates: 2/25/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Zn-65 <1.86E+00 0.00E+00 1.86E+00 Zr-95 <2.08E+00 0.00E+00 2.08E+00 Nb-95 <1.58E+00 0.00E+00 1.58E+00 I-131 <1.32E+01 0.00E+00 1.32E+01 Cs-134 <8.32E-01 0.00E+00 8.32E-01 Cs-137 <8.74E-01 0.00E+00 8.74E-01 BaLa-140 <4.57E+00 0.00E+00 4.57E+00 Be-7 <1.07E+01 0.00E+00 1.07E+01 K-40 1.59E+02 7.66E+00 8.09E+00 H3DWSW <-5.4E+01 0.00E+00 1.75E+02 Sample ID: 256455 Sample Dates: 3/25/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.67E+00 0.00E+00 2.67E+00 K-40 3.87E+01 2.54E+00 3.68E+00 LLI-131 <6.43E-01 0.00E+00 6.43E-01 Sample ID: 256983 Sample Dates: 3/25/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.59E+00 4.58E-01 1.38E+00 Mn-54 <3.65E+00 0.00E+00 3.65E+00 Co-58 <4.61E+00 0.00E+00 4.61E+00 Fe-59 <6.87E+00 0.00E+00 6.87E+00 Co-60 <5.37E+00 0.00E+00 5.37E+00 Zn-65 <1.04E+01 0.00E+00 1.04E+01 Zr-95 <6.43E+00 0.00E+00 6.43E+00 Nb-95 <4.62E+00 0.00E+00 4.62E+00 I-131 <1.38E+01 0.00E+00 1.38E+01 Cs-134 <3.33E+00 0.00E+00 3.33E+00 Cs-137 <3.06E+00 0.00E+00 3.06E+00 BaLa-140 <1.20E+01 0.00E+00 1.20E+01 Be-7 <4.22E+01 0.00E+00 4.22E+01 K-40 1.28E+02 2.00E+01 3.66E+01 H3DWSW <5.05E+01 0.00E+00 1.71E+02 Sample ID: 256989 Sample Dates: 4/8/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.75E+00 0.00E+00 2.75E+00 K-40 2.79E+01 2.21E+00 3.19E+00 LLI-131 <6.44E-01 0.00E+00 6.44E-01 Sample ID: 257819 Sample Dates: 4/22/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.40E+00 0.00E+00 2.40E+00 K-40 4.74E+01 2.60E+00 3.24E+00 LLI-131 <5.67E-01 0.00E+00 5.67E-01 Sample ID: 258355 Sample Dates: 5/6/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.12E+00 0.00E+00 2.12E+00 K-40 1.84E+01 1.83E+00 2.40E+00 LLI-131 <5.28E-01 0.00E+00 5.28E-01 Sample ID: 258359 Sample Dates: 4/22/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.25E+00 4.49E-01 1.37E+00 Mn-54 <3.71E+00 0.00E+00 3.71E+00 Co-58 <3.82E+00 0.00E+00 3.82E+00 Fe-59 <9.29E+00 0.00E+00 9.29E+00 Co-60 <3.69E+00 0.00E+00 3.69E+00 Zn-65 <6.50E+00 0.00E+00 6.50E+00 Zr-95 <7.10E+00 0.00E+00 7.10E+00 Nb-95 <4.66E+00 0.00E+00 4.66E+00 I-131 <1.26E+01 0.00E+00 1.26E+01 Cs-134 <3.47E+00 0.00E+00 3.47E+00 Cs-137 <3.78E+00 0.00E+00 3.78E+00 BaLa-140 <8.31E+00 0.00E+00 8.31E+00 Be-7 <3.46E+01 0.00E+00 3.46E+01 K-40 <6.16E+01 0.00E+00 6.16E+01 H3DWSW <9.08E+00 0.00E+00 1.39E+02 Sample ID: 259179 Sample Dates: 5/20/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.90E+00 0.00E+00 2.90E+00 K-40 2.12E+01 2.72E+00 3.72E+00 LLI-131 <6.42E-01 0.00E+00 6.42E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 85 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ] 40 Sample ID: 260560 Sample Dates: 5/20/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.30E+00 4.65E-01 1.43E+00 Mn-54 <4.22E+00 0.00E+00 4.22E+00 Co-58 <4.44E+00 0.00E+00 4.44E+00 Fe-59 <8.68E+00 0.00E+00 8.68E+00 Co-60 <4.49E+00 0.00E+00 4.49E+00 Zn-65 <8.57E+00 0.00E+00 8.57E+00 Zr-95 <8.39E+00 0.00E+00 8.39E+00 Nb-95 <5.18E+00 0.00E+00 5.18E+00 I-131 <1.34E+01 0.00E+00 1.34E+01 Cs-134 <3.23E+00 0.00E+00 3.23E+00 Cs-137 <4.06E+00 0.00E+00 4.06E+00 BaLa-140 <1.01E+01 0.00E+00 1.01E+01 Be-7 <3.32E+01 0.00E+00 3.32E+01 K-40 5.84E+01 1.31E+01 2.62E+01 H3DWSW <-3.8E+01 0.00E+00 1.80E+02 Sample ID: 260565 Sample Dates: 6/3/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.92E+00 0.00E+00 2.92E+00 K-40 1.56E+01 3.01E+00 3.62E+00 LLI-131 <5.84E-01 0.00E+00 5.84E-01 Sample ID: 261856 Sample Dates: 6/18/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.01E+00 0.00E+00 3.01E+00 K-40 2.88E+01 2.88E+00 4.18E+00 LLI-131 <5.94E-01 0.00E+00 5.94E-01 Sample ID: 263068 Sample Dates: 7/1/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.66E+00 0.00E+00 2.66E+00 K-40 2.67E+01 3.28E+00 3.67E+00 LLI-131 <6.47E-01 0.00E+00 6.47E-01 Sample ID: 263073 Sample Dates: 6/18/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.13E+00 4.34E-01 1.24E+00 Mn-54 <1.85E+00 0.00E+00 1.85E+00 Co-58 <2.20E+00 0.00E+00 2.20E+00 Fe-59 <4.94E+00 0.00E+00 4.94E+00 Co-60 <2.19E+00 0.00E+00 2.19E+00 Zn-65 <4.51E+00 0.00E+00 4.51E+00 Zr-95 <3.82E+00 0.00E+00 3.82E+00 Nb-95 <2.96E+00 0.00E+00 2.96E+00 I-131 <1.23E+01 0.00E+00 1.23E+01 Cs-134 <1.77E+00 0.00E+00 1.77E+00 Cs-137 <1.97E+00 0.00E+00 1.97E+00 BaLa-140 <7.69E+00 0.00E+00 7.69E+00 Be-7 <1.90E+01 0.00E+00 1.90E+01 K-40 9.47E+01 1.59E+01 1.90E+01 H3DWSW <8.60E+01 0.00E+00 1.74E+02 Sample ID: 264619 Sample Dates: 7/15/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.40E+00 0.00E+00 3.40E+00 K-40 1.84E+01 2.97E+00 4.84E+00 LLI-131 <6.15E-01 0.00E+00 6.15E-01 Sample ID: 266286 Sample Dates: 7/29/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.54E+00 0.00E+00 2.54E+00 K-40 1.04E+01 2.00E+00 3.31E+00 LLI-131 <5.48E-01 0.00E+00 5.48E-01 Sample ID: 266508 Sample Dates: 7/15/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.88E+00 4.79E-01 1.43E+00 Mn-54 <3.84E+00 0.00E+00 3.84E+00 Co-58 <4.54E+00 0.00E+00 4.54E+00 Fe-59 <9.97E+00 0.00E+00 9.97E+00 Co-60 <4.00E+00 0.00E+00 4.00E+00 Zn-65 <8.10E+00 0.00E+00 8.10E+00 Zr-95 <8.38E+00 0.00E+00 8.38E+00 Nb-95 <3.41E+00 0.00E+00 3.41E+00 I-131 <1.36E+01 0.00E+00 1.36E+01 Cs-134 <3.26E+00 0.00E+00 3.26E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 86 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ] 40 Sample ID: 266508 Sample Dates: 7/15/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <4.23E+00 0.00E+00 4.23E+00 BaLa-140 <1.07E+01 0.00E+00 1.07E+01 Be-7 <3.69E+01 0.00E+00 3.69E+01 K-40 1.05E+02 1.64E+01 2.70E+01 H3DWSW <2.75E+01 0.00E+00 1.73E+02 Sample ID: 267955 Sample Dates: 8/12/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.42E+00 0.00E+00 2.42E+00 K-40 4.09E+01 3.06E+00 3.26E+00 LLI-131 <5.74E-01 0.00E+00 5.74E-01 Sample ID: 269891 Sample Dates: 8/26/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.00E+00 0.00E+00 3.00E+00 K-40 3.68E+01 2.90E+00 3.67E+00 LLI-131 <6.46E-01 0.00E+00 6.46E-01 Sample ID: 269895 Sample Dates: 8/12/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.48E+00 4.62E-01 1.32E+00 Mn-54 <3.33E+00 0.00E+00 3.33E+00 Co-58 <3.29E+00 0.00E+00 3.29E+00 Fe-59 <7.76E+00 0.00E+00 7.76E+00 Co-60 <3.61E+00 0.00E+00 3.61E+00 Zn-65 <5.95E+00 0.00E+00 5.95E+00 Zr-95 <6.50E+00 0.00E+00 6.50E+00 Nb-95 <3.85E+00 0.00E+00 3.85E+00 I-131 <1.29E+01 0.00E+00 1.29E+01 Cs-134 <2.98E+00 0.00E+00 2.98E+00 Cs-137 <3.19E+00 0.00E+00 3.19E+00 BaLa-140 <7.02E+00 0.00E+00 7.02E+00 Be-7 <3.18E+01 0.00E+00 3.18E+01 K-40 1.77E+02 2.01E+01 2.95E+01 H3DWSW <8.75E+01 0.00E+00 1.50E+02 Sample ID: 271644 Sample Dates: 9/9/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.91E+00 0.00E+00 2.91E+00 K-40 1.36E+01 2.51E+00 3.75E+00 LLI-131 <6.11E-01 0.00E+00 6.11E-01 Sample ID: 272605 Sample Dates: 9/23/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.80E+00 0.00E+00 2.80E+00 K-40 1.04E+01 2.41E+00 3.88E+00 LLI-131 <6.24E-01 0.00E+00 6.24E-01 Sample ID: 272609 Sample Dates: 9/9/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.15E+00 4.76E-01 1.24E+00 Mn-54 <3.26E+00 0.00E+00 3.26E+00 Co-58 <3.56E+00 0.00E+00 3.56E+00 Fe-59 <9.95E+00 0.00E+00 9.95E+00 Co-60 <3.98E+00 0.00E+00 3.98E+00 Zn-65 <7.12E+00 0.00E+00 7.12E+00 Zr-95 <6.33E+00 0.00E+00 6.33E+00 Nb-95 <4.77E+00 0.00E+00 4.77E+00 I-131 <1.44E+01 0.00E+00 1.44E+01 Cs-134 <3.52E+00 0.00E+00 3.52E+00 Cs-137 <3.35E+00 0.00E+00 3.35E+00 BaLa-140 <9.91E+00 0.00E+00 9.91E+00 Be-7 <3.19E+01 0.00E+00 3.19E+01 K-40 1.60E+02 3.49E+01 3.28E+01 H3DWSW <-6.4E+01 0.00E+00 1.56E+02 Sample ID: 274161 Sample Dates: 10/7/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.28E+00 0.00E+00 3.28E+00 K-40 1.07E+01 2.42E+00 4.63E+00 LLI-131 <6.48E-01 0.00E+00 6.48E-01 Sample ID: 274979 Sample Dates: 10/21/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.58E+00 0.00E+00 2.58E+00 K-40 1.39E+01 2.14E+00 3.88E+00 LLI-131 <6.46E-01 0.00E+00 6.46E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 87 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: DW / SW Concentration (Activity): pCi/l Sample Point 40 [ INDICATOR - SSE @ 17.2 miles ] 40 Sample ID: 274983 Sample Dates: 10/7/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.30E+00 4.55E-01 1.22E+00 Mn-54 <3.00E+00 0.00E+00 3.00E+00 Co-58 <3.38E+00 0.00E+00 3.38E+00 Fe-59 <7.66E+00 0.00E+00 7.66E+00 Co-60 <2.68E+00 0.00E+00 2.68E+00 Zn-65 <6.93E+00 0.00E+00 6.93E+00 Zr-95 <6.57E+00 0.00E+00 6.57E+00 Nb-95 <4.43E+00 0.00E+00 4.43E+00 I-131 <1.29E+01 0.00E+00 1.29E+01 Cs-134 <2.51E+00 0.00E+00 2.51E+00 Cs-137 <3.17E+00 0.00E+00 3.17E+00 BaLa-140 <8.13E+00 0.00E+00 8.13E+00 Be-7 <3.36E+01 0.00E+00 3.36E+01 K-40 1.81E+02 2.54E+01 2.93E+01 H3DWSW <1.88E+01 0.00E+00 1.78E+02 Sample ID: 277332 Sample Dates: 11/4/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.41E+00 0.00E+00 2.41E+00 K-40 4.36E+01 2.76E+00 3.02E+00 LLI-131 <5.59E-01 0.00E+00 5.59E-01 Sample ID: 279172 Sample Dates: 11/18/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.75E+00 0.00E+00 2.75E+00 K-40 1.14E+01 2.41E+00 3.92E+00 LLI-131 <5.76E-01 0.00E+00 5.76E-01 Sample ID: 279176 Sample Dates: 11/4/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.20E+00 4.67E-01 1.28E+00 Mn-54 <4.50E+00 0.00E+00 4.50E+00 Co-58 <5.05E+00 0.00E+00 5.05E+00 Fe-59 <9.65E+00 0.00E+00 9.65E+00 Co-60 <5.07E+00 0.00E+00 5.07E+00 Zn-65 <1.03E+01 0.00E+00 1.03E+01 Zr-95 <7.41E+00 0.00E+00 7.41E+00 Nb-95 <6.04E+00 0.00E+00 6.04E+00 I-131 <1.19E+01 0.00E+00 1.19E+01 Cs-134 <3.92E+00 0.00E+00 3.92E+00 Cs-137 <4.31E+00 0.00E+00 4.31E+00 BaLa-140 <1.41E+01 0.00E+00 1.41E+01 Be-7 <4.47E+01 0.00E+00 4.47E+01 K-40 6.37E+01 2.24E+01 3.96E+01 H3DWSW <9.61E+00 0.00E+00 1.69E+02 Sample ID: 280455 Sample Dates: 12/2/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.15E+00 0.00E+00 2.15E+00 K-40 1.27E+01 1.82E+00 3.04E+00 LLI-131 <5.25E-01 0.00E+00 5.25E-01 Sample ID: 280956 Sample Dates: 12/16/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.55E+00 0.00E+00 2.55E+00 K-40 1.32E+01 1.74E+00 3.05E+00 LLI-131 <5.81E-01 0.00E+00 5.81E-01 Sample ID: 280957 Sample Dates: 12/2/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.84E+00 4.39E-01 1.20E+00 Mn-54 <3.85E+00 0.00E+00 3.85E+00 Co-58 <3.50E+00 0.00E+00 3.50E+00 Fe-59 <8.43E+00 0.00E+00 8.43E+00 Co-60 <3.61E+00 0.00E+00 3.61E+00 Zn-65 <7.60E+00 0.00E+00 7.60E+00 Zr-95 <7.06E+00 0.00E+00 7.06E+00 Nb-95 <4.69E+00 0.00E+00 4.69E+00 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <3.15E+00 0.00E+00 3.15E+00 Cs-137 <3.12E+00 0.00E+00 3.12E+00 BaLa-140 <8.63E+00 0.00E+00 8.63E+00 Be-7 <3.23E+01 0.00E+00 3.23E+01 K-40 1.75E+02 2.59E+01 3.55E+01 H3DWSW <-1.4E+02 0.00E+00 2.29E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 88 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg Sample Point 44 [ INDICATOR - -- @ 0 miles ] 44 Sample ID: 258491 Sample Dates: 5/22/2013 - 5/22/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM SUNFISH Mn-54 <1.53E+01 0.00E+00 1.53E+01 Co-58 <1.84E+01 0.00E+00 1.84E+01 Fe-59 <3.83E+01 0.00E+00 3.83E+01 Co-60 <2.07E+01 0.00E+00 2.07E+01 Zn-65 <4.82E+01 0.00E+00 4.82E+01 Nb-95 <1.78E+01 0.00E+00 1.78E+01 I-131 <1.55E+01 0.00E+00 1.55E+01 Cs-134 <1.29E+01 0.00E+00 1.29E+01 Cs-137 <1.91E+01 0.00E+00 1.91E+01 Be-7 <7.87E+01 0.00E+00 7.87E+01 K-40 2.90E+03 2.45E+02 2.37E+02 Ag-110M <1.60E+01 0.00E+00 1.60E+01 Sb-122 <2.63E+01 0.00E+00 2.63E+01 Sb-125 <3.73E+01 0.00E+00 3.73E+01 Sample ID: 258492 Sample Dates: 5/22/2013 - 5/22/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM LRGMTHBASS Mn-54 <1.33E+01 0.00E+00 1.33E+01 Co-58 <1.36E+01 0.00E+00 1.36E+01 Fe-59 <2.73E+01 0.00E+00 2.73E+01 Co-60 <1.64E+01 0.00E+00 1.64E+01 Zn-65 <3.39E+01 0.00E+00 3.39E+01 Nb-95 <1.36E+01 0.00E+00 1.36E+01 I-131 <1.27E+01 0.00E+00 1.27E+01 Cs-134 <1.20E+01 0.00E+00 1.20E+01 Cs-137 <1.68E+01 0.00E+00 1.68E+01 Be-7 <1.03E+02 0.00E+00 1.03E+02 K-40 3.65E+03 2.02E+02 1.68E+02 Ag-110M <1.36E+01 0.00E+00 1.36E+01 Sb-122 <2.48E+01 0.00E+00 2.48E+01 Sb-125 <2.99E+01 0.00E+00 2.99E+01 Sample ID: 258493 Sample Dates: 5/22/2013 - 5/22/2013 Nuclide Activity 1 Sigma Error LLD Subtype: BOTMFEEDER CATFISH Mn-54 <1.95E+01 0.00E+00 1.95E+01 Co-58 <1.99E+01 0.00E+00 1.99E+01 Fe-59 <5.07E+01 0.00E+00 5.07E+01 Co-60 <2.88E+01 0.00E+00 2.88E+01 Zn-65 <5.79E+01 0.00E+00 5.79E+01 Nb-95 <2.56E+01 0.00E+00 2.56E+01 I-131 <1.82E+01 0.00E+00 1.82E+01 Cs-134 <1.76E+01 0.00E+00 1.76E+01 Cs-137 <2.04E+01 0.00E+00 2.04E+01 Be-7 <1.67E+02 0.00E+00 1.67E+02 K-40 3.22E+03 2.75E+02 2.61E+02 Ag-110M <1.87E+01 0.00E+00 1.87E+01 Sb-122 <3.06E+01 0.00E+00 3.06E+01 Sb-125 <3.45E+01 0.00E+00 3.45E+01 Sample ID: 276899 Sample Dates: 11/5/2013 - 11/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM LRGMTHBASS Mn-54 <1.51E+01 0.00E+00 1.51E+01 Co-58 <1.17E+01 0.00E+00 1.17E+01 Fe-59 <3.33E+01 0.00E+00 3.33E+01 Co-60 <1.71E+01 0.00E+00 1.71E+01 Zn-65 <3.36E+01 0.00E+00 3.36E+01 Nb-95 <2.01E+01 0.00E+00 2.01E+01 I-131 <2.82E+01 0.00E+00 2.82E+01 Cs-134 <1.36E+01 0.00E+00 1.36E+01 Cs-137 <1.87E+01 0.00E+00 1.87E+01 Be-7 <1.19E+02 0.00E+00 1.19E+02 K-40 3.29E+03 1.90E+02 1.46E+02 Ag-110M <1.46E+01 0.00E+00 1.46E+01 Sb-122 <1.59E+02 0.00E+00 1.59E+02 Sb-125 <4.27E+01 0.00E+00 4.27E+01 Sample ID: 276900 Sample Dates: 11/5/2013 - 11/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM SUNFISH Mn-54 <2.28E+01 0.00E+00 2.28E+01 Co-58 <2.42E+01 0.00E+00 2.42E+01 Fe-59 <5.92E+01 0.00E+00 5.92E+01 Co-60 <2.10E+01 0.00E+00 2.10E+01 Zn-65 <5.19E+01 0.00E+00 5.19E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 89 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg Sample Point 44 [ INDICATOR - -- @ 0 miles ] 44 Sample ID: 276900 Sample Dates: 11/5/2013 - 11/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM SUNFISH Nb-95 <2.35E+01 0.00E+00 2.35E+01 I-131 <3.85E+01 0.00E+00 3.85E+01 Cs-134 <2.14E+01 0.00E+00 2.14E+01 Cs-137 <2.25E+01 0.00E+00 2.25E+01 Be-7 <1.84E+02 0.00E+00 1.84E+02 K-40 3.74E+03 2.54E+02 2.29E+02 Ag-110M <1.95E+01 0.00E+00 1.95E+01 Sb-122 <2.63E+02 0.00E+00 2.63E+02 Sb-125 <6.29E+01 0.00E+00 6.29E+01 Sample ID: 276901 Sample Dates: 11/5/2013 - 11/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: BOTMFEEDER CATFISH Mn-54 <2.02E+01 0.00E+00 2.02E+01 Co-58 <2.19E+01 0.00E+00 2.19E+01 Fe-59 <5.04E+01 0.00E+00 5.04E+01 Co-60 <2.92E+01 0.00E+00 2.92E+01 Zn-65 <6.52E+01 0.00E+00 6.52E+01 Nb-95 <2.52E+01 0.00E+00 2.52E+01 I-131 <3.15E+01 0.00E+00 3.15E+01 Cs-134 <2.12E+01 0.00E+00 2.12E+01 Cs-137 <1.22E+01 0.00E+00 1.22E+01 Be-7 <1.63E+02 0.00E+00 1.63E+02 K-40 3.11E+03 2.57E+02 1.98E+02 Ag-110M <2.15E+01 0.00E+00 2.15E+01 Sb-122 <1.38E+02 0.00E+00 1.38E+02 Sb-125 <4.90E+01 0.00E+00 4.90E+01 Sample Point 45 [ CONTROL - -- @ 0 miles ] 45 Sample ID: 258488 Sample Dates: 5/21/2013 - 5/21/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM SUNFISH Mn-54 <1.38E+01 0.00E+00 1.38E+01 Co-58 <1.27E+01 0.00E+00 1.27E+01 Fe-59 <2.47E+01 0.00E+00 2.47E+01 Co-60 <1.39E+01 0.00E+00 1.39E+01 Zn-65 <3.00E+01 0.00E+00 3.00E+01 Nb-95 <1.30E+01 0.00E+00 1.30E+01 I-131 <1.36E+01 0.00E+00 1.36E+01 Cs-134 <1.27E+01 0.00E+00 1.27E+01 Cs-137 <1.26E+01 0.00E+00 1.26E+01 Be-7 7.61E+01 4.16E+01 7.15E+01 K-40 2.88E+03 1.75E+02 1.28E+02 Ag-110M <1.25E+01 0.00E+00 1.25E+01 Sb-122 <3.60E+01 0.00E+00 3.60E+01 Sb-125 <2.95E+01 0.00E+00 2.95E+01 Sample ID: 258489 Sample Dates: 5/21/2013 - 5/21/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM LRGMTHBASS Mn-54 <1.63E+01 0.00E+00 1.63E+01 Co-58 <1.53E+01 0.00E+00 1.53E+01 Fe-59 <4.01E+01 0.00E+00 4.01E+01 Co-60 <2.16E+01 0.00E+00 2.16E+01 Zn-65 <3.80E+01 0.00E+00 3.80E+01 Nb-95 <1.59E+01 0.00E+00 1.59E+01 I-131 <1.38E+01 0.00E+00 1.38E+01 Cs-134 <1.23E+01 0.00E+00 1.23E+01 Cs-137 <1.66E+01 0.00E+00 1.66E+01 Be-7 <9.92E+01 0.00E+00 9.92E+01 K-40 2.59E+03 2.25E+02 2.04E+02 Ag-110M <1.49E+01 0.00E+00 1.49E+01 Sb-122 <3.89E+01 0.00E+00 3.89E+01 Sb-125 <3.52E+01 0.00E+00 3.52E+01 Sample ID: 258490 Sample Dates: 5/21/2013 - 5/21/2013 Nuclide Activity 1 Sigma Error LLD Subtype: BOTMFEEDER CATFISH Mn-54 <1.69E+01 0.00E+00 1.69E+01 Co-58 <1.86E+01 0.00E+00 1.86E+01 Fe-59 <4.60E+01 0.00E+00 4.60E+01 Co-60 <2.68E+01 0.00E+00 2.68E+01 Zn-65 <3.96E+01 0.00E+00 3.96E+01 Nb-95 <1.55E+01 0.00E+00 1.55E+01 I-131 <1.28E+01 0.00E+00 1.28E+01 Cs-134 <1.58E+01 0.00E+00 1.58E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 90 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: FISH Concentration (Activity): pCi/kg Sample Point 45 [ CONTROL - -- @ 0 miles ] 45 Sample ID: 258490 Sample Dates: 5/21/2013 - 5/21/2013 Nuclide Activity 1 Sigma Error LLD Subtype: BOTMFEEDER CATFISH Cs-137 <1.52E+01 0.00E+00 1.52E+01 Be-7 <1.17E+02 0.00E+00 1.17E+02 K-40 2.65E+03 2.22E+02 1.54E+02 Ag-110M <1.22E+01 0.00E+00 1.22E+01 Sb-122 <4.01E+01 0.00E+00 4.01E+01 Sb-125 <4.21E+01 0.00E+00 4.21E+01 Sample ID: 276896 Sample Dates: 11/5/2013 - 11/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM LRGMTHBASS Mn-54 <2.14E+01 0.00E+00 2.14E+01 Co-58 <2.03E+01 0.00E+00 2.03E+01 Fe-59 <3.92E+01 0.00E+00 3.92E+01 Co-60 <2.97E+01 0.00E+00 2.97E+01 Zn-65 <4.83E+01 0.00E+00 4.83E+01 Nb-95 <2.35E+01 0.00E+00 2.35E+01 I-131 <3.39E+01 0.00E+00 3.39E+01 Cs-134 <2.00E+01 0.00E+00 2.00E+01 Cs-137 <1.96E+01 0.00E+00 1.96E+01 Be-7 <1.55E+02 0.00E+00 1.55E+02 K-40 3.21E+03 2.48E+02 2.26E+02 Ag-110M <1.67E+01 0.00E+00 1.67E+01 Sb-122 <2.32E+02 0.00E+00 2.32E+02 Sb-125 <4.80E+01 0.00E+00 4.80E+01 Sample ID: 276897 Sample Dates: 11/5/2013 - 11/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FREESWIM SUNFISH Mn-54 <2.84E+01 0.00E+00 2.84E+01 Co-58 <2.34E+01 0.00E+00 2.34E+01 Fe-59 <5.88E+01 0.00E+00 5.88E+01 Co-60 <2.76E+01 0.00E+00 2.76E+01 Zn-65 <5.79E+01 0.00E+00 5.79E+01 Nb-95 <3.02E+01 0.00E+00 3.02E+01 I-131 <5.08E+01 0.00E+00 5.08E+01 Cs-134 <2.95E+01 0.00E+00 2.95E+01 Cs-137 <2.27E+01 0.00E+00 2.27E+01 Be-7 <2.17E+02 0.00E+00 2.17E+02 K-40 1.25E+03 2.40E+02 2.30E+02 Ag-110M <2.48E+01 0.00E+00 2.48E+01 Sb-122 <3.52E+02 0.00E+00 3.52E+02 Sb-125 <7.56E+01 0.00E+00 7.56E+01 Sample ID: 276898 Sample Dates: 11/5/2013 - 11/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: BOTMFEEDER CATFISH Mn-54 <1.78E+01 0.00E+00 1.78E+01 Co-58 <1.58E+01 0.00E+00 1.58E+01 Fe-59 <3.96E+01 0.00E+00 3.96E+01 Co-60 <1.25E+01 0.00E+00 1.25E+01 Zn-65 <4.33E+01 0.00E+00 4.33E+01 Nb-95 <1.69E+01 0.00E+00 1.69E+01 I-131 <3.18E+01 0.00E+00 3.18E+01 Cs-134 <1.30E+01 0.00E+00 1.30E+01 Cs-137 <1.56E+01 0.00E+00 1.56E+01 Be-7 <1.50E+02 0.00E+00 1.50E+02 K-40 3.56E+03 2.10E+02 1.69E+02 Ag-110M <1.47E+01 0.00E+00 1.47E+01 Sb-122 <1.84E+02 0.00E+00 1.84E+02 Sb-125 <4.34E+01 0.00E+00 4.34E+01 Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 57 [ INDICATOR - SSW @ 0.4 miles ] 57 Sample ID: 253771 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.75E+00 0.00E+00 7.75E+00 Co-58 <5.55E+00 0.00E+00 5.55E+00 Fe-59 <1.12E+01 0.00E+00 1.12E+01 Co-60 <8.50E+00 0.00E+00 8.50E+00 Zn-65 <1.94E+01 0.00E+00 1.94E+01 Zr-95 <1.14E+01 0.00E+00 1.14E+01 Nb-95 <7.86E+00 0.00E+00 7.86E+00 I-131 <8.19E+00 0.00E+00 8.19E+00 Cs-134 <5.85E+00 0.00E+00 5.85E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 91 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 57 [ INDICATOR - SSW @ 0.4 miles ] 57 Sample ID: 253771 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <8.50E+00 0.00E+00 8.50E+00 BaLa-140 <1.03E+01 0.00E+00 1.03E+01 Be-7 <5.85E+01 0.00E+00 5.85E+01 K-40 1.28E+02 3.95E+01 8.24E+01 H3GW <-4.4E+01 0.00E+00 1.83E+02 Sample ID: 257792 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <9.01E+00 0.00E+00 9.01E+00 Co-58 <8.47E+00 0.00E+00 8.47E+00 Fe-59 <1.96E+01 0.00E+00 1.96E+01 Co-60 <1.09E+01 0.00E+00 1.09E+01 Zn-65 <1.47E+01 0.00E+00 1.47E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <7.94E+00 0.00E+00 7.94E+00 I-131 <1.02E+01 0.00E+00 1.02E+01 Cs-134 <7.00E+00 0.00E+00 7.00E+00 Cs-137 <9.62E+00 0.00E+00 9.62E+00 BaLa-140 <1.37E+01 0.00E+00 1.37E+01 Be-7 8.36E+01 4.41E+01 6.88E+01 K-40 <1.66E+02 0.00E+00 1.66E+02 H3GW <4.50E+01 0.00E+00 1.78E+02 Sample ID: 265066 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.86E+00 0.00E+00 7.86E+00 Co-58 <6.20E+00 0.00E+00 6.20E+00 Fe-59 <1.61E+01 0.00E+00 1.61E+01 Co-60 <1.16E+01 0.00E+00 1.16E+01 Zn-65 <1.46E+01 0.00E+00 1.46E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <7.35E+00 0.00E+00 7.35E+00 I-131 <7.00E+00 0.00E+00 7.00E+00 Cs-134 <6.50E+00 0.00E+00 6.50E+00 Cs-137 <6.39E+00 0.00E+00 6.39E+00 BaLa-140 <9.90E+00 0.00E+00 9.90E+00 Be-7 <5.55E+01 0.00E+00 5.55E+01 K-40 1.87E+02 3.92E+01 8.14E+01 H3GW <1.64E+01 0.00E+00 1.73E+02 Sample ID: 275153 Sample Dates: 11/18/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.29E+00 0.00E+00 7.29E+00 Co-58 <6.53E+00 0.00E+00 6.53E+00 Fe-59 <1.27E+01 0.00E+00 1.27E+01 Co-60 <7.09E+00 0.00E+00 7.09E+00 Zn-65 <1.48E+01 0.00E+00 1.48E+01 Zr-95 <1.22E+01 0.00E+00 1.22E+01 Nb-95 <9.06E+00 0.00E+00 9.06E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <6.13E+00 0.00E+00 6.13E+00 Cs-137 <6.33E+00 0.00E+00 6.33E+00 BaLa-140 <1.05E+01 0.00E+00 1.05E+01 Be-7 <5.41E+01 0.00E+00 5.41E+01 K-40 2.67E+02 3.95E+01 6.05E+01 H3GW <4.92E+00 0.00E+00 1.72E+02 Sample Point 59 [ INDICATOR - NNE @ 0.5 miles ] 59 Sample ID: 253772 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.64E+00 0.00E+00 6.64E+00 Co-58 <6.32E+00 0.00E+00 6.32E+00 Fe-59 <1.65E+01 0.00E+00 1.65E+01 Co-60 <6.36E+00 0.00E+00 6.36E+00 Zn-65 <1.76E+01 0.00E+00 1.76E+01 Zr-95 <1.16E+01 0.00E+00 1.16E+01 Nb-95 <7.33E+00 0.00E+00 7.33E+00 I-131 <8.41E+00 0.00E+00 8.41E+00 Cs-134 <6.72E+00 0.00E+00 6.72E+00 Cs-137 <7.15E+00 0.00E+00 7.15E+00 BaLa-140 <8.29E+00 0.00E+00 8.29E+00 Be-7 <5.42E+01 0.00E+00 5.42E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 92 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 59 [ INDICATOR - NNE @ 0.5 miles ] 59 Sample ID: 253772 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD K-40 3.76E+02 4.53E+01 5.42E+01 H3GW <-1.5E+02 0.00E+00 1.83E+02 Sample ID: 257794 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.06E+00 0.00E+00 7.06E+00 Co-58 <7.28E+00 0.00E+00 7.28E+00 Fe-59 <1.40E+01 0.00E+00 1.40E+01 Co-60 <7.86E+00 0.00E+00 7.86E+00 Zn-65 <1.42E+01 0.00E+00 1.42E+01 Zr-95 <1.10E+01 0.00E+00 1.10E+01 Nb-95 <6.85E+00 0.00E+00 6.85E+00 I-131 <8.24E+00 0.00E+00 8.24E+00 Cs-134 <6.32E+00 0.00E+00 6.32E+00 Cs-137 <6.49E+00 0.00E+00 6.49E+00 BaLa-140 <1.24E+01 0.00E+00 1.24E+01 Be-7 <6.24E+01 0.00E+00 6.24E+01 K-40 <9.31E+01 0.00E+00 9.31E+01 H3GW <-5.8E+01 0.00E+00 1.71E+02 Sample ID: 265067 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.24E+00 0.00E+00 8.24E+00 Co-58 <6.29E+00 0.00E+00 6.29E+00 Fe-59 <1.44E+01 0.00E+00 1.44E+01 Co-60 <7.75E+00 0.00E+00 7.75E+00 Zn-65 <1.46E+01 0.00E+00 1.46E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <7.34E+00 0.00E+00 7.34E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <6.70E+00 0.00E+00 6.70E+00 Cs-137 <6.95E+00 0.00E+00 6.95E+00 BaLa-140 <9.88E+00 0.00E+00 9.88E+00 Be-7 <5.66E+01 0.00E+00 5.66E+01 K-40 3.76E+02 5.76E+01 8.10E+01 H3GW <-7.0E+01 0.00E+00 1.73E+02 Sample ID: 275154 Sample Dates: 11/18/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.36E+00 0.00E+00 6.36E+00 Co-58 <5.15E+00 0.00E+00 5.15E+00 Fe-59 <1.10E+01 0.00E+00 1.10E+01 Co-60 <6.72E+00 0.00E+00 6.72E+00 Zn-65 <1.06E+01 0.00E+00 1.06E+01 Zr-95 <1.08E+01 0.00E+00 1.08E+01 Nb-95 <6.87E+00 0.00E+00 6.87E+00 I-131 <9.05E+00 0.00E+00 9.05E+00 Cs-134 <5.67E+00 0.00E+00 5.67E+00 Cs-137 <5.74E+00 0.00E+00 5.74E+00 BaLa-140 <9.70E+00 0.00E+00 9.70E+00 Be-7 <4.88E+01 0.00E+00 4.88E+01 K-40 1.52E+02 3.22E+01 5.87E+01 H3GW <-1.7E+01 0.00E+00 1.72E+02 Sample Point 60 [ INDICATOR - ESE @ 0.5 miles ] 60 Sample ID: 253773 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.72E+00 0.00E+00 6.72E+00 Co-58 <7.25E+00 0.00E+00 7.25E+00 Fe-59 <1.35E+01 0.00E+00 1.35E+01 Co-60 <8.18E+00 0.00E+00 8.18E+00 Zn-65 <1.62E+01 0.00E+00 1.62E+01 Zr-95 <1.20E+01 0.00E+00 1.20E+01 Nb-95 <6.40E+00 0.00E+00 6.40E+00 I-131 <6.52E+00 0.00E+00 6.52E+00 Cs-134 <6.28E+00 0.00E+00 6.28E+00 Cs-137 <8.13E+00 0.00E+00 8.13E+00 BaLa-140 <1.05E+01 0.00E+00 1.05E+01 Be-7 <5.50E+01 0.00E+00 5.50E+01 K-40 2.60E+02 4.15E+01 7.05E+01 H3GW <-1.9E+01 0.00E+00 1.83E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 93 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 60 [ INDICATOR - ESE @ 0.5 miles ] 60 Sample ID: 257795 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.42E+00 0.00E+00 7.42E+00 Co-58 <7.48E+00 0.00E+00 7.48E+00 Fe-59 <1.49E+01 0.00E+00 1.49E+01 Co-60 <8.86E+00 0.00E+00 8.86E+00 Zn-65 <1.44E+01 0.00E+00 1.44E+01 Zr-95 <1.01E+01 0.00E+00 1.01E+01 Nb-95 <8.02E+00 0.00E+00 8.02E+00 I-131 <1.44E+01 0.00E+00 1.44E+01 Cs-134 <6.57E+00 0.00E+00 6.57E+00 Cs-137 <7.01E+00 0.00E+00 7.01E+00 BaLa-140 <1.17E+01 0.00E+00 1.17E+01 Be-7 5.79E+01 2.18E+01 5.15E+01 K-40 2.29E+02 4.16E+01 5.06E+01 H3GW <-6.7E+01 0.00E+00 1.71E+02 Sample ID: 265068 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.44E+00 0.00E+00 7.44E+00 Co-58 <8.11E+00 0.00E+00 8.11E+00 Fe-59 <1.82E+01 0.00E+00 1.82E+01 Co-60 <1.09E+01 0.00E+00 1.09E+01 Zn-65 <1.43E+01 0.00E+00 1.43E+01 Zr-95 <1.44E+01 0.00E+00 1.44E+01 Nb-95 <9.05E+00 0.00E+00 9.05E+00 I-131 <9.04E+00 0.00E+00 9.04E+00 Cs-134 <8.35E+00 0.00E+00 8.35E+00 Cs-137 <8.83E+00 0.00E+00 8.83E+00 BaLa-140 <1.24E+01 0.00E+00 1.24E+01 Be-7 <5.93E+01 0.00E+00 5.93E+01 K-40 1.31E+02 3.73E+01 7.91E+01 H3GW <7.02E+00 0.00E+00 1.73E+02 Sample ID: 275155 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.02E+00 0.00E+00 7.02E+00 Co-58 <8.72E+00 0.00E+00 8.72E+00 Fe-59 <1.35E+01 0.00E+00 1.35E+01 Co-60 <9.36E+00 0.00E+00 9.36E+00 Zn-65 <1.14E+01 0.00E+00 1.14E+01 Zr-95 <1.10E+01 0.00E+00 1.10E+01 Nb-95 <7.82E+00 0.00E+00 7.82E+00 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <5.61E+00 0.00E+00 5.61E+00 Cs-137 <7.29E+00 0.00E+00 7.29E+00 BaLa-140 <1.12E+01 0.00E+00 1.12E+01 Be-7 <6.33E+01 0.00E+00 6.33E+01 K-40 2.14E+02 4.26E+01 6.44E+01 H3GW <1.23E+02 0.00E+00 1.72E+02 Sample Point 68 [ INDICATOR - W @ 0.2 miles ] 68 Sample ID: 253774 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.00E+01 0.00E+00 1.00E+01 Co-58 <9.50E+00 0.00E+00 9.50E+00 Fe-59 <2.31E+01 0.00E+00 2.31E+01 Co-60 <1.26E+01 0.00E+00 1.26E+01 Zn-65 <2.11E+01 0.00E+00 2.11E+01 Zr-95 <1.17E+01 0.00E+00 1.17E+01 Nb-95 <1.03E+01 0.00E+00 1.03E+01 I-131 <1.19E+01 0.00E+00 1.19E+01 Cs-134 <8.05E+00 0.00E+00 8.05E+00 Cs-137 <1.22E+01 0.00E+00 1.22E+01 BaLa-140 <8.69E+00 0.00E+00 8.69E+00 Be-7 <7.37E+01 0.00E+00 7.37E+01 K-40 3.52E+02 7.96E+01 1.31E+02 H3GW <-3.5E+01 0.00E+00 1.83E+02 Sample ID: 257796 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.31E+00 0.00E+00 8.31E+00 Co-58 <6.08E+00 0.00E+00 6.08E+00 Fe-59 <1.23E+01 0.00E+00 1.23E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 94 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 68 [ INDICATOR - W @ 0.2 miles ] 68 Sample ID: 257796 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <1.78E+01 0.00E+00 1.78E+01 Zr-95 <1.24E+01 0.00E+00 1.24E+01 Nb-95 <8.10E+00 0.00E+00 8.10E+00 I-131 <8.65E+00 0.00E+00 8.65E+00 Cs-134 <8.07E+00 0.00E+00 8.07E+00 Cs-137 <1.00E+01 0.00E+00 1.00E+01 BaLa-140 <1.32E+01 0.00E+00 1.32E+01 Be-7 <6.11E+01 0.00E+00 6.11E+01 K-40 1.91E+02 4.95E+01 9.98E+01 H3GW <-5.3E+01 0.00E+00 1.80E+02 Sample ID: 265069 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.09E+00 0.00E+00 7.09E+00 Co-58 <6.90E+00 0.00E+00 6.90E+00 Fe-59 <1.69E+01 0.00E+00 1.69E+01 Co-60 <1.10E+01 0.00E+00 1.10E+01 Zn-65 <1.46E+01 0.00E+00 1.46E+01 Zr-95 <1.32E+01 0.00E+00 1.32E+01 Nb-95 <9.80E+00 0.00E+00 9.80E+00 I-131 <9.36E+00 0.00E+00 9.36E+00 Cs-134 <6.26E+00 0.00E+00 6.26E+00 Cs-137 <7.76E+00 0.00E+00 7.76E+00 BaLa-140 <1.30E+01 0.00E+00 1.30E+01 Be-7 <5.89E+01 0.00E+00 5.89E+01 K-40 3.71E+02 4.49E+01 7.69E+01 H3GW <5.15E+01 0.00E+00 1.73E+02 Sample ID: 275156 Sample Dates: 11/18/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.57E+00 0.00E+00 6.57E+00 Co-58 <6.91E+00 0.00E+00 6.91E+00 Fe-59 <1.30E+01 0.00E+00 1.30E+01 Co-60 <5.26E+00 0.00E+00 5.26E+00 Zn-65 <1.24E+01 0.00E+00 1.24E+01 Zr-95 <1.37E+01 0.00E+00 1.37E+01 Nb-95 <7.45E+00 0.00E+00 7.45E+00 I-131 <1.24E+01 0.00E+00 1.24E+01 Cs-134 <6.89E+00 0.00E+00 6.89E+00 Cs-137 <6.16E+00 0.00E+00 6.16E+00 BaLa-140 <1.43E+01 0.00E+00 1.43E+01 Be-7 <5.52E+01 0.00E+00 5.52E+01 K-40 2.40E+02 5.92E+01 6.45E+01 H3GW <9.31E+01 0.00E+00 1.71E+02 Sample Point 69 [ INDICATOR - NNE @ 0.2 miles ] 69 Sample ID: 253775 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <4.54E+00 0.00E+00 4.54E+00 Co-58 <4.75E+00 0.00E+00 4.75E+00 Fe-59 <8.99E+00 0.00E+00 8.99E+00 Co-60 <6.07E+00 0.00E+00 6.07E+00 Zn-65 <9.14E+00 0.00E+00 9.14E+00 Zr-95 <8.55E+00 0.00E+00 8.55E+00 Nb-95 <4.61E+00 0.00E+00 4.61E+00 I-131 <5.42E+00 0.00E+00 5.42E+00 Cs-134 <4.32E+00 0.00E+00 4.32E+00 Cs-137 <5.92E+00 0.00E+00 5.92E+00 BaLa-140 <8.87E+00 0.00E+00 8.87E+00 Be-7 <3.98E+01 0.00E+00 3.98E+01 K-40 1.10E+02 2.39E+01 4.91E+01 H3GW <-3.0E+01 0.00E+00 1.83E+02 Sample ID: 257797 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.18E+00 0.00E+00 8.18E+00 Co-58 <5.03E+00 0.00E+00 5.03E+00 Fe-59 <1.42E+01 0.00E+00 1.42E+01 Co-60 <1.14E+01 0.00E+00 1.14E+01 Zn-65 <1.96E+01 0.00E+00 1.96E+01 Zr-95 <1.34E+01 0.00E+00 1.34E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 95 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 69 [ INDICATOR - NNE @ 0.2 miles ] 69 Sample ID: 257797 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Nb-95 <6.27E+00 0.00E+00 6.27E+00 I-131 <8.29E+00 0.00E+00 8.29E+00 Cs-134 <6.85E+00 0.00E+00 6.85E+00 Cs-137 <8.55E+00 0.00E+00 8.55E+00 BaLa-140 <6.69E+00 0.00E+00 6.69E+00 Be-7 <6.02E+01 0.00E+00 6.02E+01 K-40 1.05E+02 4.74E+01 8.57E+01 H3GW <-9.5E+00 0.00E+00 1.79E+02 Sample ID: 265070 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <5.85E+00 0.00E+00 5.85E+00 Co-58 <5.85E+00 0.00E+00 5.85E+00 Fe-59 <1.33E+01 0.00E+00 1.33E+01 Co-60 <7.44E+00 0.00E+00 7.44E+00 Zn-65 <1.28E+01 0.00E+00 1.28E+01 Zr-95 <1.00E+01 0.00E+00 1.00E+01 Nb-95 <5.74E+00 0.00E+00 5.74E+00 I-131 <8.07E+00 0.00E+00 8.07E+00 Cs-134 <5.69E+00 0.00E+00 5.69E+00 Cs-137 <6.46E+00 0.00E+00 6.46E+00 BaLa-140 <1.03E+01 0.00E+00 1.03E+01 Be-7 <5.18E+01 0.00E+00 5.18E+01 K-40 2.07E+02 3.70E+01 7.16E+01 H3GW <-2.8E+01 0.00E+00 1.73E+02 Sample ID: 275157 Sample Dates: 11/18/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <4.16E+00 0.00E+00 4.16E+00 Co-58 <5.52E+00 0.00E+00 5.52E+00 Fe-59 <1.05E+01 0.00E+00 1.05E+01 Co-60 <5.11E+00 0.00E+00 5.11E+00 Zn-65 <1.08E+01 0.00E+00 1.08E+01 Zr-95 <7.78E+00 0.00E+00 7.78E+00 Nb-95 <5.60E+00 0.00E+00 5.60E+00 I-131 <9.77E+00 0.00E+00 9.77E+00 Cs-134 <4.34E+00 0.00E+00 4.34E+00 Cs-137 <4.85E+00 0.00E+00 4.85E+00 BaLa-140 <8.29E+00 0.00E+00 8.29E+00 Be-7 <3.93E+01 0.00E+00 3.93E+01 K-40 3.69E+02 4.38E+01 5.75E+01 H3GW <2.92E+01 0.00E+00 1.70E+02 Sample Point 70 [ INDICATOR - E @ 0.4 miles ] 70 Sample ID: 253776 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.97E+00 0.00E+00 7.97E+00 Co-58 <9.20E+00 0.00E+00 9.20E+00 Fe-59 <1.55E+01 0.00E+00 1.55E+01 Co-60 <1.32E+01 0.00E+00 1.32E+01 Zn-65 <1.75E+01 0.00E+00 1.75E+01 Zr-95 <1.27E+01 0.00E+00 1.27E+01 Nb-95 <6.83E+00 0.00E+00 6.83E+00 I-131 <9.95E+00 0.00E+00 9.95E+00 Cs-134 <6.85E+00 0.00E+00 6.85E+00 Cs-137 <1.03E+01 0.00E+00 1.03E+01 BaLa-140 <8.95E+00 0.00E+00 8.95E+00 Be-7 <5.29E+01 0.00E+00 5.29E+01 K-40 1.42E+02 3.10E+01 7.08E+01 H3GW <-7.5E+01 0.00E+00 1.83E+02 Sample ID: 257798 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.00E+00 0.00E+00 8.00E+00 Co-58 <6.77E+00 0.00E+00 6.77E+00 Fe-59 <1.74E+01 0.00E+00 1.74E+01 Co-60 <5.75E+00 0.00E+00 5.75E+00 Zn-65 <1.89E+01 0.00E+00 1.89E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <8.74E+00 0.00E+00 8.74E+00 I-131 <1.25E+01 0.00E+00 1.25E+01 Cs-134 <7.87E+00 0.00E+00 7.87E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 96 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 70 [ INDICATOR - E @ 0.4 miles ] 70 Sample ID: 257798 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <8.41E+00 0.00E+00 8.41E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <5.91E+01 0.00E+00 5.91E+01 K-40 5.06E+02 6.72E+01 7.36E+01 H3GW <-7.6E+01 0.00E+00 1.71E+02 Sample ID: 265071 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.81E+00 0.00E+00 7.81E+00 Co-58 <5.96E+00 0.00E+00 5.96E+00 Fe-59 <1.53E+01 0.00E+00 1.53E+01 Co-60 <8.89E+00 0.00E+00 8.89E+00 Zn-65 <1.38E+01 0.00E+00 1.38E+01 Zr-95 <1.19E+01 0.00E+00 1.19E+01 Nb-95 <6.78E+00 0.00E+00 6.78E+00 I-131 <1.01E+01 0.00E+00 1.01E+01 Cs-134 <7.22E+00 0.00E+00 7.22E+00 Cs-137 <8.42E+00 0.00E+00 8.42E+00 BaLa-140 <1.16E+01 0.00E+00 1.16E+01 Be-7 <5.72E+01 0.00E+00 5.72E+01 K-40 2.01E+02 4.05E+01 7.54E+01 H3GW <-1.6E+01 0.00E+00 1.73E+02 Sample ID: 275158 Sample Dates: 11/18/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.97E+00 0.00E+00 6.97E+00 Co-58 <6.77E+00 0.00E+00 6.77E+00 Fe-59 <1.58E+01 0.00E+00 1.58E+01 Co-60 <4.94E+00 0.00E+00 4.94E+00 Zn-65 <1.44E+01 0.00E+00 1.44E+01 Zr-95 <1.17E+01 0.00E+00 1.17E+01 Nb-95 <7.20E+00 0.00E+00 7.20E+00 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <6.17E+00 0.00E+00 6.17E+00 Cs-137 <5.61E+00 0.00E+00 5.61E+00 BaLa-140 <1.10E+01 0.00E+00 1.10E+01 Be-7 <5.70E+01 0.00E+00 5.70E+01 K-40 3.86E+02 5.12E+01 6.09E+01 H3GW <-2.2E+01 0.00E+00 1.72E+02 Sample Point 71 [ INDICATOR - SE @ 0.3 miles ] 71 Sample ID: 253777 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.17E+00 0.00E+00 7.17E+00 Co-58 <7.90E+00 0.00E+00 7.90E+00 Fe-59 <1.66E+01 0.00E+00 1.66E+01 Co-60 <1.06E+01 0.00E+00 1.06E+01 Zn-65 <1.41E+01 0.00E+00 1.41E+01 Zr-95 <1.28E+01 0.00E+00 1.28E+01 Nb-95 <8.76E+00 0.00E+00 8.76E+00 I-131 <8.24E+00 0.00E+00 8.24E+00 Cs-134 <8.26E+00 0.00E+00 8.26E+00 Cs-137 <8.40E+00 0.00E+00 8.40E+00 BaLa-140 <1.32E+01 0.00E+00 1.32E+01 Be-7 <5.64E+01 0.00E+00 5.64E+01 K-40 3.49E+02 5.17E+01 6.29E+01 H3GW <-9.1E+01 0.00E+00 1.83E+02 Sample ID: 257799 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.82E+00 0.00E+00 6.82E+00 Co-58 <7.02E+00 0.00E+00 7.02E+00 Fe-59 <1.22E+01 0.00E+00 1.22E+01 Co-60 <9.51E+00 0.00E+00 9.51E+00 Zn-65 <1.64E+01 0.00E+00 1.64E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <7.52E+00 0.00E+00 7.52E+00 I-131 <7.86E+00 0.00E+00 7.86E+00 Cs-134 <4.48E+00 0.00E+00 4.48E+00 Cs-137 <7.52E+00 0.00E+00 7.52E+00 BaLa-140 <8.28E+00 0.00E+00 8.28E+00 Be-7 <5.21E+01 0.00E+00 5.21E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 97 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 71 [ INDICATOR - SE @ 0.3 miles ] 71 Sample ID: 257799 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD K-40 1.62E+02 3.75E+01 6.94E+01 H3GW <-3.8E+01 0.00E+00 1.70E+02 Sample ID: 265072 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <9.33E+00 0.00E+00 9.33E+00 Co-58 <8.12E+00 0.00E+00 8.12E+00 Fe-59 <2.14E+01 0.00E+00 2.14E+01 Co-60 <1.33E+01 0.00E+00 1.33E+01 Zn-65 <1.47E+01 0.00E+00 1.47E+01 Zr-95 <1.35E+01 0.00E+00 1.35E+01 Nb-95 <9.76E+00 0.00E+00 9.76E+00 I-131 <1.07E+01 0.00E+00 1.07E+01 Cs-134 <7.30E+00 0.00E+00 7.30E+00 Cs-137 <6.93E+00 0.00E+00 6.93E+00 BaLa-140 <1.40E+01 0.00E+00 1.40E+01 Be-7 <6.12E+01 0.00E+00 6.12E+01 K-40 1.55E+02 6.01E+01 9.28E+01 H3GW <-4.0E+01 0.00E+00 1.73E+02 Sample ID: 275159 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.77E+00 0.00E+00 7.77E+00 Co-58 <8.19E+00 0.00E+00 8.19E+00 Fe-59 <1.96E+01 0.00E+00 1.96E+01 Co-60 <9.30E+00 0.00E+00 9.30E+00 Zn-65 <1.40E+01 0.00E+00 1.40E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <6.97E+00 0.00E+00 6.97E+00 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <6.16E+00 0.00E+00 6.16E+00 Cs-137 <6.36E+00 0.00E+00 6.36E+00 BaLa-140 <1.02E+01 0.00E+00 1.02E+01 Be-7 <7.02E+01 0.00E+00 7.02E+01 K-40 1.56E+02 3.12E+01 1.13E+02 H3GW <1.03E+02 0.00E+00 1.71E+02 Sample Point 72 [ INDICATOR - SE @ 0.2 miles ] 72 Sample ID: 253778 Sample Dates: 2/19/2013 - 2/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.04E+00 0.00E+00 6.04E+00 Co-58 <6.34E+00 0.00E+00 6.34E+00 Fe-59 <1.27E+01 0.00E+00 1.27E+01 Co-60 <6.46E+00 0.00E+00 6.46E+00 Zn-65 <1.31E+01 0.00E+00 1.31E+01 Zr-95 <1.10E+01 0.00E+00 1.10E+01 Nb-95 <7.63E+00 0.00E+00 7.63E+00 I-131 <8.92E+00 0.00E+00 8.92E+00 Cs-134 <5.94E+00 0.00E+00 5.94E+00 Cs-137 <6.36E+00 0.00E+00 6.36E+00 BaLa-140 <9.82E+00 0.00E+00 9.82E+00 Be-7 <5.25E+01 0.00E+00 5.25E+01 K-40 3.80E+02 4.62E+01 7.11E+01 H3GW <-8.6E+01 0.00E+00 1.83E+02 Sample ID: 257800 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.35E+00 0.00E+00 8.35E+00 Co-58 <7.76E+00 0.00E+00 7.76E+00 Fe-59 <1.51E+01 0.00E+00 1.51E+01 Co-60 <1.01E+01 0.00E+00 1.01E+01 Zn-65 <1.85E+01 0.00E+00 1.85E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <1.00E+01 0.00E+00 1.00E+01 I-131 <9.26E+00 0.00E+00 9.26E+00 Cs-134 <8.13E+00 0.00E+00 8.13E+00 Cs-137 <7.68E+00 0.00E+00 7.68E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <6.76E+01 0.00E+00 6.76E+01 K-40 3.87E+02 5.67E+01 1.00E+02 H3GW <1.17E+01 0.00E+00 1.77E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 98 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 72 [ INDICATOR - SE @ 0.2 miles ] 72 Sample ID: 265073 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <9.32E+00 0.00E+00 9.32E+00 Co-58 <7.94E+00 0.00E+00 7.94E+00 Fe-59 <2.01E+01 0.00E+00 2.01E+01 Co-60 <9.46E+00 0.00E+00 9.46E+00 Zn-65 <2.12E+01 0.00E+00 2.12E+01 Zr-95 <1.44E+01 0.00E+00 1.44E+01 Nb-95 <1.14E+01 0.00E+00 1.14E+01 I-131 <1.31E+01 0.00E+00 1.31E+01 Cs-134 <7.72E+00 0.00E+00 7.72E+00 Cs-137 <7.29E+00 0.00E+00 7.29E+00 BaLa-140 <1.25E+01 0.00E+00 1.25E+01 Be-7 <6.90E+01 0.00E+00 6.90E+01 K-40 4.86E+02 5.24E+01 8.29E+01 H3GW <-2.6E+01 0.00E+00 1.73E+02 Sample ID: 275160 Sample Dates: 11/18/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.84E+00 0.00E+00 6.84E+00 Co-58 <6.56E+00 0.00E+00 6.56E+00 Fe-59 <1.31E+01 0.00E+00 1.31E+01 Co-60 <8.41E+00 0.00E+00 8.41E+00 Zn-65 <1.07E+01 0.00E+00 1.07E+01 Zr-95 <1.17E+01 0.00E+00 1.17E+01 Nb-95 <8.13E+00 0.00E+00 8.13E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <6.40E+00 0.00E+00 6.40E+00 Cs-137 <8.19E+00 0.00E+00 8.19E+00 BaLa-140 <1.28E+01 0.00E+00 1.28E+01 Be-7 <5.97E+01 0.00E+00 5.97E+01 K-40 2.15E+02 4.81E+01 7.54E+01 H3GW <2.44E+00 0.00E+00 1.70E+02 Sample Point 73 [ INDICATOR - S @ 0.2 miles ] 73 Sample ID: 253779 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.61E+00 0.00E+00 7.61E+00 Co-58 <5.95E+00 0.00E+00 5.95E+00 Fe-59 <1.34E+01 0.00E+00 1.34E+01 Co-60 <6.49E+00 0.00E+00 6.49E+00 Zn-65 <1.42E+01 0.00E+00 1.42E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <6.36E+00 0.00E+00 6.36E+00 I-131 <8.64E+00 0.00E+00 8.64E+00 Cs-134 <5.37E+00 0.00E+00 5.37E+00 Cs-137 <6.39E+00 0.00E+00 6.39E+00 BaLa-140 <7.59E+00 0.00E+00 7.59E+00 Be-7 <5.02E+01 0.00E+00 5.02E+01 K-40 4.74E+02 5.23E+01 6.08E+01 H3GW <-8.2E+01 0.00E+00 1.83E+02 Sample ID: 257801 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.66E+00 0.00E+00 7.66E+00 Co-58 <7.81E+00 0.00E+00 7.81E+00 Fe-59 <1.58E+01 0.00E+00 1.58E+01 Co-60 <1.03E+01 0.00E+00 1.03E+01 Zn-65 <1.77E+01 0.00E+00 1.77E+01 Zr-95 <1.40E+01 0.00E+00 1.40E+01 Nb-95 <7.51E+00 0.00E+00 7.51E+00 I-131 <9.11E+00 0.00E+00 9.11E+00 Cs-134 <7.76E+00 0.00E+00 7.76E+00 Cs-137 <7.88E+00 0.00E+00 7.88E+00 BaLa-140 <7.81E+00 0.00E+00 7.81E+00 Be-7 <6.44E+01 0.00E+00 6.44E+01 K-40 1.37E+02 4.58E+01 6.43E+01 H3GW <-5.7E+01 0.00E+00 1.80E+02 Sample ID: 265074 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.67E+00 0.00E+00 8.67E+00 Co-58 <7.42E+00 0.00E+00 7.42E+00 Fe-59 <1.82E+01 0.00E+00 1.82E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 99 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 73 [ INDICATOR - S @ 0.2 miles ] 73 Sample ID: 265074 Sample Dates: 8/18/2013 - 8/18/2013 Nuclide Activity 1 Sigma Error LLD Co-60 <1.02E+01 0.00E+00 1.02E+01 Zn-65 <1.64E+01 0.00E+00 1.64E+01 Zr-95 <1.26E+01 0.00E+00 1.26E+01 Nb-95 <8.54E+00 0.00E+00 8.54E+00 I-131 <9.54E+00 0.00E+00 9.54E+00 Cs-134 <6.77E+00 0.00E+00 6.77E+00 Cs-137 <7.73E+00 0.00E+00 7.73E+00 BaLa-140 <1.44E+01 0.00E+00 1.44E+01 Be-7 <6.07E+01 0.00E+00 6.07E+01 K-40 3.56E+02 5.38E+01 8.33E+01 H3GW <-7.5E+01 0.00E+00 1.73E+02 Sample ID: 275161 Sample Dates: 11/18/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.44E+00 0.00E+00 6.44E+00 Co-58 <5.39E+00 0.00E+00 5.39E+00 Fe-59 <1.34E+01 0.00E+00 1.34E+01 Co-60 <4.79E+00 0.00E+00 4.79E+00 Zn-65 <1.62E+01 0.00E+00 1.62E+01 Zr-95 <1.28E+01 0.00E+00 1.28E+01 Nb-95 <7.23E+00 0.00E+00 7.23E+00 I-131 <1.30E+01 0.00E+00 1.30E+01 Cs-134 <5.74E+00 0.00E+00 5.74E+00 Cs-137 <4.73E+00 0.00E+00 4.73E+00 BaLa-140 <1.24E+01 0.00E+00 1.24E+01 Be-7 <6.44E+01 0.00E+00 6.44E+01 K-40 3.67E+02 4.71E+01 7.91E+01 H3GW <5.64E+01 0.00E+00 1.71E+02 Sample Point 74 [ INDICATOR - SSE @ 0.2 miles ] 74 Sample ID: 253780 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <9.53E+00 0.00E+00 9.53E+00 Co-58 <7.95E+00 0.00E+00 7.95E+00 Fe-59 <2.46E+01 0.00E+00 2.46E+01 Co-60 <1.44E+01 0.00E+00 1.44E+01 Zn-65 <2.21E+01 0.00E+00 2.21E+01 Zr-95 <1.41E+01 0.00E+00 1.41E+01 Nb-95 <1.10E+01 0.00E+00 1.10E+01 I-131 <8.83E+00 0.00E+00 8.83E+00 Cs-134 <8.20E+00 0.00E+00 8.20E+00 Cs-137 <1.01E+01 0.00E+00 1.01E+01 BaLa-140 <1.40E+01 0.00E+00 1.40E+01 Be-7 <6.38E+01 0.00E+00 6.38E+01 K-40 1.55E+02 4.47E+01 1.16E+02 H3GW <-8.2E+01 0.00E+00 1.83E+02 Sample ID: 257802 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.02E+01 0.00E+00 1.02E+01 Co-58 <9.00E+00 0.00E+00 9.00E+00 Fe-59 <1.64E+01 0.00E+00 1.64E+01 Co-60 <1.44E+01 0.00E+00 1.44E+01 Zn-65 <1.51E+01 0.00E+00 1.51E+01 Zr-95 <1.17E+01 0.00E+00 1.17E+01 Nb-95 <1.14E+01 0.00E+00 1.14E+01 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <9.87E+00 0.00E+00 9.87E+00 Cs-137 <5.95E+00 0.00E+00 5.95E+00 BaLa-140 <9.92E+00 0.00E+00 9.92E+00 Be-7 <9.09E+01 0.00E+00 9.09E+01 K-40 3.18E+02 5.98E+01 1.13E+02 H3GW <2.39E+00 0.00E+00 1.80E+02 Sample ID: 265075 Sample Dates: 8/20/2013 - 8/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.59E+00 0.00E+00 6.59E+00 Co-58 <8.12E+00 0.00E+00 8.12E+00 Fe-59 <1.04E+01 0.00E+00 1.04E+01 Co-60 <1.06E+01 0.00E+00 1.06E+01 Zn-65 <2.33E+01 0.00E+00 2.33E+01 Zr-95 <1.36E+01 0.00E+00 1.36E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 100 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 74 [ INDICATOR - SSE @ 0.2 miles ] 74 Sample ID: 265075 Sample Dates: 8/20/2013 - 8/20/2013 Nuclide Activity 1 Sigma Error LLD Nb-95 <8.23E+00 0.00E+00 8.23E+00 I-131 <1.02E+01 0.00E+00 1.02E+01 Cs-134 <8.32E+00 0.00E+00 8.32E+00 Cs-137 <1.04E+01 0.00E+00 1.04E+01 BaLa-140 <8.98E+00 0.00E+00 8.98E+00 Be-7 <6.71E+01 0.00E+00 6.71E+01 K-40 1.36E+02 6.38E+01 1.30E+02 H3GW <4.68E+01 0.00E+00 1.73E+02 Sample ID: 275162 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <5.15E+00 0.00E+00 5.15E+00 Co-58 <6.27E+00 0.00E+00 6.27E+00 Fe-59 <1.30E+01 0.00E+00 1.30E+01 Co-60 <8.22E+00 0.00E+00 8.22E+00 Zn-65 <1.60E+01 0.00E+00 1.60E+01 Zr-95 <1.43E+01 0.00E+00 1.43E+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 <6.46E+00 0.00E+00 6.46E+00 Cs-137 <7.17E+00 0.00E+00 7.17E+00 BaLa-140 <9.79E+00 0.00E+00 9.79E+00 Be-7 <5.41E+01 0.00E+00 5.41E+01 K-40 2.22E+02 4.01E+01 7.36E+01 H3GW <1.40E+02 0.00E+00 1.71E+02 Sample Point 75 [ INDICATOR - ESE @ 0.1 miles ] 75 Sample ID: 253781 Sample Dates: 2/21/2013 - 2/21/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.32E+00 0.00E+00 8.32E+00 Co-58 <7.90E+00 0.00E+00 7.90E+00 Fe-59 <1.65E+01 0.00E+00 1.65E+01 Co-60 <1.10E+01 0.00E+00 1.10E+01 Zn-65 <1.97E+01 0.00E+00 1.97E+01 Zr-95 <1.22E+01 0.00E+00 1.22E+01 Nb-95 <7.50E+00 0.00E+00 7.50E+00 I-131 <6.99E+00 0.00E+00 6.99E+00 Cs-134 <6.52E+00 0.00E+00 6.52E+00 Cs-137 <9.83E+00 0.00E+00 9.83E+00 BaLa-140 <9.66E+00 0.00E+00 9.66E+00 Be-7 <4.95E+01 0.00E+00 4.95E+01 K-40 <1.45E+02 0.00E+00 1.45E+02 H3GW <-3.1E+01 0.00E+00 1.77E+02 Sample ID: 257803 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <3.66E+00 0.00E+00 3.66E+00 Co-58 <3.63E+00 0.00E+00 3.63E+00 Fe-59 <7.20E+00 0.00E+00 7.20E+00 Co-60 <5.47E+00 0.00E+00 5.47E+00 Zn-65 <8.72E+00 0.00E+00 8.72E+00 Zr-95 <7.44E+00 0.00E+00 7.44E+00 Nb-95 <3.87E+00 0.00E+00 3.87E+00 I-131 <5.01E+00 0.00E+00 5.01E+00 Cs-134 <3.42E+00 0.00E+00 3.42E+00 Cs-137 <3.76E+00 0.00E+00 3.76E+00 BaLa-140 <6.33E+00 0.00E+00 6.33E+00 Be-7 <2.99E+01 0.00E+00 2.99E+01 K-40 1.27E+02 2.65E+01 4.40E+01 H3GW <5.41E+01 0.00E+00 1.72E+02 Sample ID: 265076 Sample Dates: 8/20/2013 - 8/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.72E+00 0.00E+00 6.72E+00 Co-58 <6.96E+00 0.00E+00 6.96E+00 Fe-59 <1.20E+01 0.00E+00 1.20E+01 Co-60 <7.34E+00 0.00E+00 7.34E+00 Zn-65 <1.31E+01 0.00E+00 1.31E+01 Zr-95 <1.26E+01 0.00E+00 1.26E+01 Nb-95 <6.13E+00 0.00E+00 6.13E+00 I-131 <1.05E+01 0.00E+00 1.05E+01 Cs-134 <5.93E+00 0.00E+00 5.93E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 101 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 75 [ INDICATOR - ESE @ 0.1 miles ] 75 Sample ID: 265076 Sample Dates: 8/20/2013 - 8/20/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <6.15E+00 0.00E+00 6.15E+00 BaLa-140 <1.02E+01 0.00E+00 1.02E+01 Be-7 <4.50E+01 0.00E+00 4.50E+01 K-40 3.24E+02 4.27E+01 5.84E+01 H3GW <1.13E+01 0.00E+00 1.70E+02 Sample ID: 275163 Sample Dates: 11/20/2013 - 11/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <2.70E+00 0.00E+00 2.70E+00 Co-58 <2.75E+00 0.00E+00 2.75E+00 Fe-59 <6.61E+00 0.00E+00 6.61E+00 Co-60 <2.95E+00 0.00E+00 2.95E+00 Zn-65 <5.54E+00 0.00E+00 5.54E+00 Zr-95 <5.20E+00 0.00E+00 5.20E+00 Nb-95 <3.54E+00 0.00E+00 3.54E+00 I-131 <9.14E+00 0.00E+00 9.14E+00 Cs-134 <2.38E+00 0.00E+00 2.38E+00 Cs-137 <2.80E+00 0.00E+00 2.80E+00 BaLa-140 <7.87E+00 0.00E+00 7.87E+00 Be-7 <2.48E+01 0.00E+00 2.48E+01 K-40 3.51E+02 2.23E+01 2.64E+01 H3GW <3.53E+01 0.00E+00 2.05E+02 Sample Point 76 [ INDICATOR - S @ 0.1 miles ] 76 Sample ID: 253782 Sample Dates: 2/21/2013 - 2/21/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <9.21E+00 0.00E+00 9.21E+00 Co-58 <6.35E+00 0.00E+00 6.35E+00 Fe-59 <1.88E+01 0.00E+00 1.88E+01 Co-60 <1.11E+01 0.00E+00 1.11E+01 Zn-65 <1.62E+01 0.00E+00 1.62E+01 Zr-95 <1.32E+01 0.00E+00 1.32E+01 Nb-95 <7.74E+00 0.00E+00 7.74E+00 I-131 <7.61E+00 0.00E+00 7.61E+00 Cs-134 <7.08E+00 0.00E+00 7.08E+00 Cs-137 <8.84E+00 0.00E+00 8.84E+00 BaLa-140 <1.07E+01 0.00E+00 1.07E+01 Be-7 <5.48E+01 0.00E+00 5.48E+01 K-40 1.16E+02 6.31E+01 9.35E+01 H3GW 3.76E+02 5.99E+01 1.77E+02 Sample ID: 257804 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.88E+00 0.00E+00 6.88E+00 Co-58 <6.81E+00 0.00E+00 6.81E+00 Fe-59 <1.97E+01 0.00E+00 1.97E+01 Co-60 <1.04E+01 0.00E+00 1.04E+01 Zn-65 <1.32E+01 0.00E+00 1.32E+01 Zr-95 <1.21E+01 0.00E+00 1.21E+01 Nb-95 <7.66E+00 0.00E+00 7.66E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <6.57E+00 0.00E+00 6.57E+00 Cs-137 <7.17E+00 0.00E+00 7.17E+00 BaLa-140 <1.41E+01 0.00E+00 1.41E+01 Be-7 <5.76E+01 0.00E+00 5.76E+01 K-40 1.22E+02 3.38E+01 9.18E+01 H3GW 2.93E+02 5.69E+01 1.71E+02 Sample ID: 265077 Sample Dates: 8/20/2013 - 8/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.03E+00 0.00E+00 7.03E+00 Co-58 <8.94E+00 0.00E+00 8.94E+00 Fe-59 <1.42E+01 0.00E+00 1.42E+01 Co-60 <1.07E+01 0.00E+00 1.07E+01 Zn-65 <1.73E+01 0.00E+00 1.73E+01 Zr-95 <1.19E+01 0.00E+00 1.19E+01 Nb-95 <7.42E+00 0.00E+00 7.42E+00 I-131 <7.78E+00 0.00E+00 7.78E+00 Cs-134 <6.53E+00 0.00E+00 6.53E+00 Cs-137 <6.69E+00 0.00E+00 6.69E+00 BaLa-140 <9.61E+00 0.00E+00 9.61E+00 Be-7 <5.15E+01 0.00E+00 5.15E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 102 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 76 [ INDICATOR - S @ 0.1 miles ] 76 Sample ID: 265077 Sample Dates: 8/20/2013 - 8/20/2013 Nuclide Activity 1 Sigma Error LLD K-40 1.64E+02 4.74E+01 7.72E+01 H3GW 4.46E+02 5.91E+01 1.70E+02 Sample ID: 275164 Sample Dates: 11/20/2013 - 11/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.92E+00 0.00E+00 1.92E+00 Co-58 <2.12E+00 0.00E+00 2.12E+00 Fe-59 <4.37E+00 0.00E+00 4.37E+00 Co-60 <1.76E+00 0.00E+00 1.76E+00 Zn-65 <3.99E+00 0.00E+00 3.99E+00 Zr-95 <3.68E+00 0.00E+00 3.68E+00 Nb-95 <2.73E+00 0.00E+00 2.73E+00 I-131 <1.03E+01 0.00E+00 1.03E+01 Cs-134 <1.84E+00 0.00E+00 1.84E+00 Cs-137 <1.97E+00 0.00E+00 1.97E+00 BaLa-140 <5.59E+00 0.00E+00 5.59E+00 Be-7 <1.96E+01 0.00E+00 1.96E+01 K-40 3.10E+02 1.59E+01 1.90E+01 H3GW 2.55E+02 6.67E+01 2.05E+02 Sample Point 77 [ INDICATOR - S @ 0.4 miles ] 77 Sample ID: 253783 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.19E+00 0.00E+00 8.19E+00 Co-58 <7.46E+00 0.00E+00 7.46E+00 Fe-59 <1.37E+01 0.00E+00 1.37E+01 Co-60 <1.05E+01 0.00E+00 1.05E+01 Zn-65 <1.67E+01 0.00E+00 1.67E+01 Zr-95 <1.28E+01 0.00E+00 1.28E+01 Nb-95 <7.54E+00 0.00E+00 7.54E+00 I-131 <8.01E+00 0.00E+00 8.01E+00 Cs-134 <6.98E+00 0.00E+00 6.98E+00 Cs-137 <7.14E+00 0.00E+00 7.14E+00 BaLa-140 <1.00E+01 0.00E+00 1.00E+01 Be-7 <4.63E+01 0.00E+00 4.63E+01 K-40 <1.66E+02 0.00E+00 1.66E+02 H3GW 3.26E+02 5.92E+01 1.77E+02 Sample ID: 257805 Sample Dates: 5/15/2013 - 5/15/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.74E+00 0.00E+00 7.74E+00 Co-58 <6.55E+00 0.00E+00 6.55E+00 Fe-59 <1.63E+01 0.00E+00 1.63E+01 Co-60 <9.67E+00 0.00E+00 9.67E+00 Zn-65 <7.54E+00 0.00E+00 7.54E+00 Zr-95 <1.39E+01 0.00E+00 1.39E+01 Nb-95 <7.33E+00 0.00E+00 7.33E+00 I-131 <7.06E+00 0.00E+00 7.06E+00 Cs-134 <5.45E+00 0.00E+00 5.45E+00 Cs-137 <6.28E+00 0.00E+00 6.28E+00 BaLa-140 <7.64E+00 0.00E+00 7.64E+00 Be-7 <5.14E+01 0.00E+00 5.14E+01 K-40 9.10E+01 3.59E+01 7.18E+01 H3GW 2.49E+02 5.84E+01 1.78E+02 Sample ID: 265078 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.94E+00 0.00E+00 6.94E+00 Co-58 <7.93E+00 0.00E+00 7.93E+00 Fe-59 <1.66E+01 0.00E+00 1.66E+01 Co-60 <1.08E+01 0.00E+00 1.08E+01 Zn-65 <1.91E+01 0.00E+00 1.91E+01 Zr-95 <1.37E+01 0.00E+00 1.37E+01 Nb-95 <7.73E+00 0.00E+00 7.73E+00 I-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <6.41E+00 0.00E+00 6.41E+00 Cs-137 <8.78E+00 0.00E+00 8.78E+00 BaLa-140 <1.00E+01 0.00E+00 1.00E+01 Be-7 <6.19E+01 0.00E+00 6.19E+01 K-40 <1.61E+02 0.00E+00 1.61E+02 H3GW 2.71E+02 5.62E+01 1.70E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 103 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 77 [ INDICATOR - S @ 0.4 miles ] 77 Sample ID: 275165 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.06E+00 0.00E+00 8.06E+00 Co-58 <7.41E+00 0.00E+00 7.41E+00 Fe-59 <1.81E+01 0.00E+00 1.81E+01 Co-60 <9.07E+00 0.00E+00 9.07E+00 Zn-65 <1.59E+01 0.00E+00 1.59E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <9.56E+00 0.00E+00 9.56E+00 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <7.20E+00 0.00E+00 7.20E+00 Cs-137 <7.48E+00 0.00E+00 7.48E+00 BaLa-140 <1.20E+01 0.00E+00 1.20E+01 Be-7 <6.93E+01 0.00E+00 6.93E+01 K-40 1.10E+02 2.68E+01 9.31E+01 H3GW 2.28E+02 6.69E+01 2.07E+02 Sample Point 78 [ INDICATOR - S @ 0.5 miles ] 78 Sample ID: 253784 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.34E+00 0.00E+00 7.34E+00 Co-58 <7.93E+00 0.00E+00 7.93E+00 Fe-59 <1.39E+01 0.00E+00 1.39E+01 Co-60 <1.20E+01 0.00E+00 1.20E+01 Zn-65 <1.83E+01 0.00E+00 1.83E+01 Zr-95 <1.44E+01 0.00E+00 1.44E+01 Nb-95 <7.34E+00 0.00E+00 7.34E+00 I-131 <9.50E+00 0.00E+00 9.50E+00 Cs-134 <8.41E+00 0.00E+00 8.41E+00 Cs-137 <7.96E+00 0.00E+00 7.96E+00 BaLa-140 <1.06E+01 0.00E+00 1.06E+01 Be-7 <6.78E+01 0.00E+00 6.78E+01 K-40 3.34E+02 4.77E+01 7.28E+01 H3GW 6.19E+02 6.36E+01 1.77E+02 Sample ID: 257806 Sample Dates: 5/15/2013 - 5/15/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.97E+00 0.00E+00 6.97E+00 Co-58 <7.76E+00 0.00E+00 7.76E+00 Fe-59 <1.46E+01 0.00E+00 1.46E+01 Co-60 <7.42E+00 0.00E+00 7.42E+00 Zn-65 <1.34E+01 0.00E+00 1.34E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <6.56E+00 0.00E+00 6.56E+00 I-131 <9.21E+00 0.00E+00 9.21E+00 Cs-134 <6.87E+00 0.00E+00 6.87E+00 Cs-137 <8.12E+00 0.00E+00 8.12E+00 BaLa-140 <1.35E+01 0.00E+00 1.35E+01 Be-7 <5.23E+01 0.00E+00 5.23E+01 K-40 <9.00E+01 0.00E+00 9.00E+01 H3GW 3.11E+02 5.92E+01 1.77E+02 Sample ID: 265079 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <4.74E+00 0.00E+00 4.74E+00 Co-58 <5.32E+00 0.00E+00 5.32E+00 Fe-59 <1.11E+01 0.00E+00 1.11E+01 Co-60 <7.23E+00 0.00E+00 7.23E+00 Zn-65 <1.32E+01 0.00E+00 1.32E+01 Zr-95 <9.91E+00 0.00E+00 9.91E+00 Nb-95 <5.43E+00 0.00E+00 5.43E+00 I-131 <6.76E+00 0.00E+00 6.76E+00 Cs-134 <4.82E+00 0.00E+00 4.82E+00 Cs-137 <5.84E+00 0.00E+00 5.84E+00 BaLa-140 <8.30E+00 0.00E+00 8.30E+00 Be-7 <4.44E+01 0.00E+00 4.44E+01 K-40 1.51E+02 3.37E+01 6.27E+01 H3GW 4.27E+02 5.86E+01 1.69E+02 Sample ID: 275166 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.75E+00 0.00E+00 6.75E+00 Co-58 <5.86E+00 0.00E+00 5.86E+00 Fe-59 <1.50E+01 0.00E+00 1.50E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 104 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 78 [ INDICATOR - S @ 0.5 miles ] 78 Sample ID: 275166 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Co-60 <9.62E+00 0.00E+00 9.62E+00 Zn-65 <1.33E+01 0.00E+00 1.33E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <7.83E+00 0.00E+00 7.83E+00 I-131 <1.17E+01 0.00E+00 1.17E+01 Cs-134 <6.88E+00 0.00E+00 6.88E+00 Cs-137 <9.01E+00 0.00E+00 9.01E+00 BaLa-140 <9.61E+00 0.00E+00 9.61E+00 Be-7 <5.92E+01 0.00E+00 5.92E+01 K-40 3.26E+02 4.86E+01 6.23E+01 H3GW 4.92E+02 7.03E+01 2.04E+02 Sample Point 79 [ INDICATOR - S @ 0.5 miles ] 79 Sample ID: 253785 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.05E+01 0.00E+00 1.05E+01 Co-58 <1.00E+01 0.00E+00 1.00E+01 Fe-59 <1.73E+01 0.00E+00 1.73E+01 Co-60 <1.24E+01 0.00E+00 1.24E+01 Zn-65 <2.14E+01 0.00E+00 2.14E+01 Zr-95 <1.14E+01 0.00E+00 1.14E+01 Nb-95 <1.07E+01 0.00E+00 1.07E+01 I-131 <9.21E+00 0.00E+00 9.21E+00 Cs-134 <1.00E+01 0.00E+00 1.00E+01 Cs-137 <8.64E+00 0.00E+00 8.64E+00 BaLa-140 <1.36E+01 0.00E+00 1.36E+01 Be-7 <7.31E+01 0.00E+00 7.31E+01 K-40 1.86E+02 3.87E+01 7.41E+01 H3GW 3.76E+02 5.99E+01 1.77E+02 Sample ID: 257807 Sample Dates: 5/15/2013 - 5/15/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.08E+00 0.00E+00 6.08E+00 Co-58 <8.98E+00 0.00E+00 8.98E+00 Fe-59 <1.68E+01 0.00E+00 1.68E+01 Co-60 <1.22E+01 0.00E+00 1.22E+01 Zn-65 <1.68E+01 0.00E+00 1.68E+01 Zr-95 <1.43E+01 0.00E+00 1.43E+01 Nb-95 <9.38E+00 0.00E+00 9.38E+00 I-131 <9.96E+00 0.00E+00 9.96E+00 Cs-134 <8.13E+00 0.00E+00 8.13E+00 Cs-137 <7.34E+00 0.00E+00 7.34E+00 BaLa-140 <1.13E+01 0.00E+00 1.13E+01 Be-7 <5.18E+01 0.00E+00 5.18E+01 K-40 2.73E+02 4.16E+01 8.02E+01 H3GW 3.74E+02 6.12E+01 1.80E+02 Sample ID: 265080 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.87E+00 0.00E+00 6.87E+00 Co-58 <7.65E+00 0.00E+00 7.65E+00 Fe-59 <1.39E+01 0.00E+00 1.39E+01 Co-60 <7.90E+00 0.00E+00 7.90E+00 Zn-65 <1.69E+01 0.00E+00 1.69E+01 Zr-95 <1.24E+01 0.00E+00 1.24E+01 Nb-95 <9.55E+00 0.00E+00 9.55E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <7.23E+00 0.00E+00 7.23E+00 Cs-137 <9.54E+00 0.00E+00 9.54E+00 BaLa-140 <8.58E+00 0.00E+00 8.58E+00 Be-7 <6.52E+01 0.00E+00 6.52E+01 K-40 <1.34E+02 0.00E+00 1.34E+02 H3GW 4.10E+02 5.85E+01 1.70E+02 Sample ID: 275167 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.93E+00 0.00E+00 6.93E+00 Co-58 <6.60E+00 0.00E+00 6.60E+00 Fe-59 <1.43E+01 0.00E+00 1.43E+01 Co-60 <1.15E+01 0.00E+00 1.15E+01 Zn-65 <9.66E+00 0.00E+00 9.66E+00 Zr-95 <1.27E+01 0.00E+00 1.27E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 105 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 79 [ INDICATOR - S @ 0.5 miles ] 79 Sample ID: 275167 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Nb-95 <6.08E+00 0.00E+00 6.08E+00 I-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <6.76E+00 0.00E+00 6.76E+00 Cs-137 <7.49E+00 0.00E+00 7.49E+00 BaLa-140 <1.06E+01 0.00E+00 1.06E+01 Be-7 <5.79E+01 0.00E+00 5.79E+01 K-40 1.04E+02 3.45E+01 1.05E+02 H3GW 3.65E+02 6.92E+01 2.07E+02 Sample Point 80 [ INDICATOR - S @ 0.6 miles ] 80 Sample ID: 253786 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <5.81E+00 0.00E+00 5.81E+00 Co-58 <5.74E+00 0.00E+00 5.74E+00 Fe-59 <1.02E+01 0.00E+00 1.02E+01 Co-60 <7.84E+00 0.00E+00 7.84E+00 Zn-65 <1.25E+01 0.00E+00 1.25E+01 Zr-95 <1.11E+01 0.00E+00 1.11E+01 Nb-95 <5.27E+00 0.00E+00 5.27E+00 I-131 <6.47E+00 0.00E+00 6.47E+00 Cs-134 <5.17E+00 0.00E+00 5.17E+00 Cs-137 <7.17E+00 0.00E+00 7.17E+00 BaLa-140 <8.36E+00 0.00E+00 8.36E+00 Be-7 <4.24E+01 0.00E+00 4.24E+01 K-40 1.16E+02 2.52E+01 4.98E+01 H3GW 1.02E+03 6.93E+01 1.77E+02 Sample ID: 257808 Sample Dates: 5/15/2013 - 5/15/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.54E+00 0.00E+00 7.54E+00 Co-58 <1.02E+01 0.00E+00 1.02E+01 Fe-59 <1.76E+01 0.00E+00 1.76E+01 Co-60 <1.16E+01 0.00E+00 1.16E+01 Zn-65 <2.01E+01 0.00E+00 2.01E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <9.34E+00 0.00E+00 9.34E+00 I-131 <9.49E+00 0.00E+00 9.49E+00 Cs-134 <7.16E+00 0.00E+00 7.16E+00 Cs-137 <7.91E+00 0.00E+00 7.91E+00 BaLa-140 <1.12E+01 0.00E+00 1.12E+01 Be-7 <7.59E+01 0.00E+00 7.59E+01 K-40 <1.77E+02 0.00E+00 1.77E+02 H3GW 7.76E+02 6.72E+01 1.80E+02 Sample ID: 265081 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.90E+00 0.00E+00 7.90E+00 Co-58 <7.70E+00 0.00E+00 7.70E+00 Fe-59 <1.59E+01 0.00E+00 1.59E+01 Co-60 <9.00E+00 0.00E+00 9.00E+00 Zn-65 <1.58E+01 0.00E+00 1.58E+01 Zr-95 <1.22E+01 0.00E+00 1.22E+01 Nb-95 <6.41E+00 0.00E+00 6.41E+00 I-131 <7.07E+00 0.00E+00 7.07E+00 Cs-134 <7.54E+00 0.00E+00 7.54E+00 Cs-137 <8.62E+00 0.00E+00 8.62E+00 BaLa-140 <9.28E+00 0.00E+00 9.28E+00 Be-7 <5.35E+01 0.00E+00 5.35E+01 K-40 1.46E+02 4.19E+01 6.48E+01 H3GW 7.22E+02 6.29E+01 1.68E+02 Sample ID: 275168 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.01E+01 0.00E+00 1.01E+01 Co-58 <7.90E+00 0.00E+00 7.90E+00 Fe-59 <1.94E+01 0.00E+00 1.94E+01 Co-60 <1.23E+01 0.00E+00 1.23E+01 Zn-65 <2.21E+01 0.00E+00 2.21E+01 Zr-95 <1.36E+01 0.00E+00 1.36E+01 Nb-95 <7.14E+00 0.00E+00 7.14E+00 I-131 <1.42E+01 0.00E+00 1.42E+01 Cs-134 <9.32E+00 0.00E+00 9.32E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 106 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 80 [ INDICATOR - S @ 0.6 miles ] 80 Sample ID: 275168 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Cs-137 <8.82E+00 0.00E+00 8.82E+00 BaLa-140 <1.30E+01 0.00E+00 1.30E+01 Be-7 <8.79E+01 0.00E+00 8.79E+01 K-40 2.57E+02 6.17E+01 1.26E+02 H3GW 5.70E+02 7.25E+01 2.07E+02 Sample Point 81 [ INDICATOR - S @ 0.6 miles ] 81 Sample ID: 253787 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.69E+00 0.00E+00 6.69E+00 Co-58 <1.01E+01 0.00E+00 1.01E+01 Fe-59 <1.77E+01 0.00E+00 1.77E+01 Co-60 <1.23E+01 0.00E+00 1.23E+01 Zn-65 <1.70E+01 0.00E+00 1.70E+01 Zr-95 <1.30E+01 0.00E+00 1.30E+01 Nb-95 <8.73E+00 0.00E+00 8.73E+00 I-131 <1.05E+01 0.00E+00 1.05E+01 Cs-134 <9.26E+00 0.00E+00 9.26E+00 Cs-137 <1.08E+01 0.00E+00 1.08E+01 BaLa-140 <1.39E+01 0.00E+00 1.39E+01 Be-7 <7.15E+01 0.00E+00 7.15E+01 K-40 1.65E+02 5.60E+01 1.04E+02 H3GW 4.00E+02 6.03E+01 1.77E+02 Sample ID: 257809 Sample Dates: 5/23/2013 - 5/23/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <3.90E+00 0.00E+00 3.90E+00 Co-58 <4.33E+00 0.00E+00 4.33E+00 Fe-59 <8.41E+00 0.00E+00 8.41E+00 Co-60 <4.17E+00 0.00E+00 4.17E+00 Zn-65 <9.10E+00 0.00E+00 9.10E+00 Zr-95 <6.99E+00 0.00E+00 6.99E+00 Nb-95 <4.02E+00 0.00E+00 4.02E+00 I-131 <6.13E+00 0.00E+00 6.13E+00 Cs-134 <4.21E+00 0.00E+00 4.21E+00 Cs-137 <5.16E+00 0.00E+00 5.16E+00 BaLa-140 <6.79E+00 0.00E+00 6.79E+00 Be-7 <3.51E+01 0.00E+00 3.51E+01 K-40 9.57E+01 3.71E+01 4.80E+01 H3GW 4.27E+02 5.90E+01 1.71E+02 Sample ID: 265082 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <9.32E+00 0.00E+00 9.32E+00 Co-58 <8.57E+00 0.00E+00 8.57E+00 Fe-59 <1.80E+01 0.00E+00 1.80E+01 Co-60 <9.53E+00 0.00E+00 9.53E+00 Zn-65 <2.05E+01 0.00E+00 2.05E+01 Zr-95 <1.43E+01 0.00E+00 1.43E+01 Nb-95 <8.33E+00 0.00E+00 8.33E+00 I-131 <1.24E+01 0.00E+00 1.24E+01 Cs-134 <8.07E+00 0.00E+00 8.07E+00 Cs-137 <9.31E+00 0.00E+00 9.31E+00 BaLa-140 <1.34E+01 0.00E+00 1.34E+01 Be-7 <6.85E+01 0.00E+00 6.85E+01 K-40 4.10E+02 5.47E+01 1.66E+01 H3GW 5.12E+02 5.99E+01 1.69E+02 Sample ID: 275169 Sample Dates: 11/20/2013 - 11/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <6.12E+00 0.00E+00 6.12E+00 Co-58 <7.17E+00 0.00E+00 7.17E+00 Fe-59 <1.10E+01 0.00E+00 1.10E+01 Co-60 <7.77E+00 0.00E+00 7.77E+00 Zn-65 <1.36E+01 0.00E+00 1.36E+01 Zr-95 <1.38E+01 0.00E+00 1.38E+01 Nb-95 <8.64E+00 0.00E+00 8.64E+00 I-131 <1.22E+01 0.00E+00 1.22E+01 Cs-134 <7.10E+00 0.00E+00 7.10E+00 Cs-137 <6.63E+00 0.00E+00 6.63E+00 BaLa-140 <1.20E+01 0.00E+00 1.20E+01 Be-7 <5.96E+01 0.00E+00 5.96E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 107 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 81 [ INDICATOR - S @ 0.6 miles ] 81 Sample ID: 275169 Sample Dates: 11/20/2013 - 11/20/2013 Nuclide Activity 1 Sigma Error LLD K-40 3.27E+02 4.84E+01 6.69E+01 H3GW 3.75E+02 6.70E+01 1.99E+02 Sample Point 82 [ INDICATOR - S @ 0.6 miles ] 82 Sample ID: 253788 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.71E+00 0.00E+00 8.71E+00 Co-58 <5.44E+00 0.00E+00 5.44E+00 Fe-59 <1.25E+01 0.00E+00 1.25E+01 Co-60 <9.30E+00 0.00E+00 9.30E+00 Zn-65 <1.59E+01 0.00E+00 1.59E+01 Zr-95 <1.43E+01 0.00E+00 1.43E+01 Nb-95 <7.45E+00 0.00E+00 7.45E+00 I-131 <8.32E+00 0.00E+00 8.32E+00 Cs-134 <6.86E+00 0.00E+00 6.86E+00 Cs-137 <8.72E+00 0.00E+00 8.72E+00 BaLa-140 <7.20E+00 0.00E+00 7.20E+00 Be-7 <5.09E+01 0.00E+00 5.09E+01 K-40 1.58E+02 5.46E+01 1.01E+02 H3GW <2.24E+01 0.00E+00 1.77E+02 Sample ID: 257810 Sample Dates: 5/15/2013 - 5/15/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.25E+00 0.00E+00 8.25E+00 Co-58 <6.02E+00 0.00E+00 6.02E+00 Fe-59 <1.09E+01 0.00E+00 1.09E+01 Co-60 <6.89E+00 0.00E+00 6.89E+00 Zn-65 <1.22E+01 0.00E+00 1.22E+01 Zr-95 <1.42E+01 0.00E+00 1.42E+01 Nb-95 <7.06E+00 0.00E+00 7.06E+00 I-131 <1.05E+01 0.00E+00 1.05E+01 Cs-134 <7.00E+00 0.00E+00 7.00E+00 Cs-137 <6.67E+00 0.00E+00 6.67E+00 BaLa-140 <1.09E+01 0.00E+00 1.09E+01 Be-7 <4.99E+01 0.00E+00 4.99E+01 K-40 4.89E+02 4.69E+01 4.79E+01 H3GW <4.71E+00 0.00E+00 1.91E+02 Sample ID: 265083 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.89E+00 0.00E+00 8.89E+00 Co-58 <7.11E+00 0.00E+00 7.11E+00 Fe-59 <2.01E+01 0.00E+00 2.01E+01 Co-60 <9.87E+00 0.00E+00 9.87E+00 Zn-65 <1.45E+01 0.00E+00 1.45E+01 Zr-95 <1.36E+01 0.00E+00 1.36E+01 Nb-95 <1.17E+01 0.00E+00 1.17E+01 I-131 <9.08E+00 0.00E+00 9.08E+00 Cs-134 <8.04E+00 0.00E+00 8.04E+00 Cs-137 <8.09E+00 0.00E+00 8.09E+00 BaLa-140 <9.27E+00 0.00E+00 9.27E+00 Be-7 <7.58E+01 0.00E+00 7.58E+01 K-40 1.67E+02 4.84E+01 9.80E+01 H3GW <6.09E+01 0.00E+00 1.70E+02 Sample ID: 275170 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.30E+00 0.00E+00 7.30E+00 Co-58 <7.06E+00 0.00E+00 7.06E+00 Fe-59 <1.57E+01 0.00E+00 1.57E+01 Co-60 <8.40E+00 0.00E+00 8.40E+00 Zn-65 <1.22E+01 0.00E+00 1.22E+01 Zr-95 <1.26E+01 0.00E+00 1.26E+01 Nb-95 <6.11E+00 0.00E+00 6.11E+00 I-131 <1.11E+01 0.00E+00 1.11E+01 Cs-134 <5.70E+00 0.00E+00 5.70E+00 Cs-137 <6.13E+00 0.00E+00 6.13E+00 BaLa-140 <9.01E+00 0.00E+00 9.01E+00 Be-7 <5.50E+01 0.00E+00 5.50E+01 K-40 3.34E+02 4.37E+01 5.41E+01 H3GW <1.85E+01 0.00E+00 1.99E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 108 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: GROUND WATER Concentration (Activity): pC/l Sample Point 83 [ INDICATOR - SSW @ 1.6 miles ] 83 Sample ID: 253789 Sample Dates: 2/20/2013 - 2/20/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <8.30E+00 0.00E+00 8.30E+00 Co-58 <7.55E+00 0.00E+00 7.55E+00 Fe-59 <1.61E+01 0.00E+00 1.61E+01 Co-60 <6.60E+00 0.00E+00 6.60E+00 Zn-65 <1.59E+01 0.00E+00 1.59E+01 Zr-95 <1.33E+01 0.00E+00 1.33E+01 Nb-95 <7.47E+00 0.00E+00 7.47E+00 I-131 <9.98E+00 0.00E+00 9.98E+00 Cs-134 <7.46E+00 0.00E+00 7.46E+00 Cs-137 <7.14E+00 0.00E+00 7.14E+00 BaLa-140 <1.12E+01 0.00E+00 1.12E+01 Be-7 <6.79E+01 0.00E+00 6.79E+01 K-40 3.81E+02 5.94E+01 7.18E+01 H3GW 2.61E+03 8.80E+01 1.77E+02 Sample ID: 257811 Sample Dates: 5/15/2013 - 5/15/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.10E+00 0.00E+00 7.10E+00 Co-58 <6.73E+00 0.00E+00 6.73E+00 Fe-59 <1.18E+01 0.00E+00 1.18E+01 Co-60 <1.09E+01 0.00E+00 1.09E+01 Zn-65 <1.23E+01 0.00E+00 1.23E+01 Zr-95 <1.12E+01 0.00E+00 1.12E+01 Nb-95 <7.62E+00 0.00E+00 7.62E+00 I-131 <7.98E+00 0.00E+00 7.98E+00 Cs-134 <5.45E+00 0.00E+00 5.45E+00 Cs-137 <5.78E+00 0.00E+00 5.78E+00 BaLa-140 <1.10E+01 0.00E+00 1.10E+01 Be-7 <5.23E+01 0.00E+00 5.23E+01 K-40 1.38E+02 3.34E+01 8.25E+01 H3GW 2.16E+03 8.80E+01 1.94E+02 Sample ID: 265084 Sample Dates: 8/19/2013 - 8/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.71E+00 0.00E+00 7.71E+00 Co-58 <7.61E+00 0.00E+00 7.61E+00 Fe-59 <1.38E+01 0.00E+00 1.38E+01 Co-60 <1.09E+01 0.00E+00 1.09E+01 Zn-65 <1.55E+01 0.00E+00 1.55E+01 Zr-95 <1.28E+01 0.00E+00 1.28E+01 Nb-95 <8.12E+00 0.00E+00 8.12E+00 I-131 <1.02E+01 0.00E+00 1.02E+01 Cs-134 <6.38E+00 0.00E+00 6.38E+00 Cs-137 <7.50E+00 0.00E+00 7.50E+00 BaLa-140 <9.87E+00 0.00E+00 9.87E+00 Be-7 <6.32E+01 0.00E+00 6.32E+01 K-40 <1.39E+02 0.00E+00 1.39E+02 H3GW 2.01E+03 7.99E+01 1.69E+02 Sample ID: 275171 Sample Dates: 11/19/2013 - 11/19/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <7.84E+00 0.00E+00 7.84E+00 Co-58 <8.74E+00 0.00E+00 8.74E+00 Fe-59 <1.62E+01 0.00E+00 1.62E+01 Co-60 <1.03E+01 0.00E+00 1.03E+01 Zn-65 <1.45E+01 0.00E+00 1.45E+01 Zr-95 <1.34E+01 0.00E+00 1.34E+01 Nb-95 <1.08E+01 0.00E+00 1.08E+01 I-131 <1.41E+01 0.00E+00 1.41E+01 Cs-134 <6.98E+00 0.00E+00 6.98E+00 Cs-137 <7.33E+00 0.00E+00 7.33E+00 BaLa-140 <1.15E+01 0.00E+00 1.15E+01 Be-7 <7.92E+01 0.00E+00 7.92E+01 K-40 2.73E+02 5.28E+01 7.95E+01 H3GW 1.86E+03 8.83E+01 2.00E+02 Media Type: MILK Concentration (Activity): pCi/l Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 250682 Sample Dates: 1/7/2013 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <5.58E+00 0.00E+00 5.58E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 109 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: MILK Concentration (Activity): pCi/l Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 250682 Sample Dates: 1/7/2013 - 1/7/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW K-40 <1.47E+01 0.00E+00 1.47E+01 LLI-131 <6.27E-01 0.00E+00 6.27E-01 I-131 <6.50E+00 0.00E+00 6.50E+00 Cs-134 <5.81E+00 0.00E+00 5.81E+00 Cs-137 <6.14E+00 0.00E+00 6.14E+00 BaLa-140 <6.76E+00 0.00E+00 6.76E+00 Be-7 <4.02E+01 0.00E+00 4.02E+01 K-40 1.60E+03 7.89E+01 3.75E+01 Sample ID: 250822 Sample Dates: 2/4/2013 - 2/4/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <4.89E+00 0.00E+00 4.89E+00 K-40 4.02E+01 6.16E+00 6.37E+00 LLI-131 <6.26E-01 0.00E+00 6.26E-01 I-131 <7.26E+00 0.00E+00 7.26E+00 Cs-134 <5.17E+00 0.00E+00 5.17E+00 Cs-137 <5.09E+00 0.00E+00 5.09E+00 BaLa-140 <1.16E+01 0.00E+00 1.16E+01 Be-7 3.49E+01 1.71E+01 4.25E+01 K-40 1.36E+03 1.19E+02 1.19E+02 Sample ID: 251842 Sample Dates: 3/4/2013 - 3/4/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <4.79E+00 0.00E+00 4.79E+00 K-40 2.61E+01 4.58E+00 7.42E+00 LLI-131 <6.48E-01 0.00E+00 6.48E-01 I-131 <7.23E+00 0.00E+00 7.23E+00 Cs-134 <5.66E+00 0.00E+00 5.66E+00 Cs-137 <8.32E+00 0.00E+00 8.32E+00 BaLa-140 <1.14E+01 0.00E+00 1.14E+01 Be-7 <5.08E+01 0.00E+00 5.08E+01 K-40 1.44E+03 1.08E+02 1.00E+02 Sample ID: 254063 Sample Dates: 4/1/2013 - 4/1/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <5.08E+00 0.00E+00 5.08E+00 K-40 1.52E+01 2.97E+00 8.34E+00 LLI-131 <6.17E-01 0.00E+00 6.17E-01 I-131 <7.27E+00 0.00E+00 7.27E+00 Cs-134 <4.88E+00 0.00E+00 4.88E+00 Cs-137 <4.61E+00 0.00E+00 4.61E+00 BaLa-140 <7.07E+00 0.00E+00 7.07E+00 Be-7 <4.81E+01 0.00E+00 4.81E+01 K-40 1.82E+03 8.53E+01 5.55E+01 Sample ID: 255987 Sample Dates: 5/6/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <5.45E+00 0.00E+00 5.45E+00 K-40 2.81E+01 4.05E+00 6.63E+00 LLI-131 <5.85E-01 0.00E+00 5.85E-01 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <9.84E-01 0.00E+00 9.84E-01 Cs-137 <1.06E+00 0.00E+00 1.06E+00 BaLa-140 <5.08E+00 0.00E+00 5.08E+00 Be-7 <1.23E+01 0.00E+00 1.23E+01 K-40 1.56E+03 1.74E+01 9.79E+00 Sample ID: 257923 Sample Dates: 6/3/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <4.44E+00 0.00E+00 4.44E+00 K-40 2.27E+01 3.76E+00 5.90E+00 LLI-131 <5.78E-01 0.00E+00 5.78E-01 I-131 <4.54E+00 0.00E+00 4.54E+00 Cs-134 <5.37E+00 0.00E+00 5.37E+00 Cs-137 <6.00E+00 0.00E+00 6.00E+00 BaLa-140 <4.50E+00 0.00E+00 4.50E+00 Be-7 <4.51E+01 0.00E+00 4.51E+01 K-40 1.64E+03 8.11E+01 2.87E+01 Sample ID: 259431 Sample Dates: 7/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <3.93E+00 0.00E+00 3.93E+00 K-40 1.80E+01 4.20E+00 7.74E+00 LLI-131 <6.04E-01 0.00E+00 6.04E-01 I-131 <5.28E+00 0.00E+00 5.28E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 110 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: MILK Concentration (Activity): pCi/l Sample Point 5 [ CONTROL - WNW @ 12 miles ] 5 Sample ID: 259431 Sample Dates: 7/1/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Cs-134 <5.48E+00 0.00E+00 5.48E+00 Cs-137 <5.12E+00 0.00E+00 5.12E+00 BaLa-140 <6.17E+00 0.00E+00 6.17E+00 Be-7 <4.22E+01 0.00E+00 4.22E+01 K-40 1.56E+03 8.25E+01 6.00E+01 Sample ID: 261556 Sample Dates: 8/5/2013 - 8/5/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <3.86E+00 0.00E+00 3.86E+00 K-40 2.49E+01 6.05E+00 5.19E+00 LLI-131 <5.21E-01 0.00E+00 5.21E-01 I-131 <4.62E+00 0.00E+00 4.62E+00 Cs-134 <5.92E+00 0.00E+00 5.92E+00 Cs-137 <6.67E+00 0.00E+00 6.67E+00 BaLa-140 <7.29E+00 0.00E+00 7.29E+00 Be-7 <4.37E+01 0.00E+00 4.37E+01 K-40 1.65E+03 8.80E+01 6.03E+01 Sample ID: 263617 Sample Dates: 9/3/2013 - 9/3/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <4.99E+00 0.00E+00 4.99E+00 K-40 1.63E+01 4.29E+00 8.63E+00 LLI-131 <6.28E-01 0.00E+00 6.28E-01 I-131 <5.94E+00 0.00E+00 5.94E+00 Cs-134 <5.21E+00 0.00E+00 5.21E+00 Cs-137 <6.18E+00 0.00E+00 6.18E+00 BaLa-140 <5.46E+00 0.00E+00 5.46E+00 Be-7 <5.24E+01 0.00E+00 5.24E+01 K-40 1.51E+03 8.39E+01 6.78E+01 Sample ID: 267468 Sample Dates: 10/7/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <4.24E+00 0.00E+00 4.24E+00 K-40 2.44E+01 4.70E+00 5.54E+00 LLI-131 <6.32E-01 0.00E+00 6.32E-01 I-131 <5.92E+00 0.00E+00 5.92E+00 Cs-134 <5.86E+00 0.00E+00 5.86E+00 Cs-137 <4.58E+00 0.00E+00 4.58E+00 BaLa-140 <6.24E+00 0.00E+00 6.24E+00 Be-7 <4.37E+01 0.00E+00 4.37E+01 K-40 1.42E+03 8.74E+01 5.60E+01 Sample ID: 271976 Sample Dates: 11/4/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <4.84E+00 0.00E+00 4.84E+00 K-40 1.67E+01 4.69E+00 9.17E+00 LLI-131 <6.34E-01 0.00E+00 6.34E-01 I-131 <8.50E+00 0.00E+00 8.50E+00 Cs-134 <5.82E+00 0.00E+00 5.82E+00 Cs-137 <9.36E+00 0.00E+00 9.36E+00 BaLa-140 <1.21E+01 0.00E+00 1.21E+01 Be-7 <4.74E+01 0.00E+00 4.74E+01 K-40 1.40E+03 1.06E+02 2.18E+01 Sample ID: 274350 Sample Dates: 12/2/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Subtype: COW Be-7 <2.62E+00 0.00E+00 2.62E+00 K-40 4.56E+01 2.54E+00 3.44E+00 LLI-131 <9.25E-01 0.00E+00 9.25E-01 I-131 <6.39E+00 0.00E+00 6.39E+00 Cs-134 <3.91E+00 0.00E+00 3.91E+00 Cs-137 <6.73E+00 0.00E+00 6.73E+00 BaLa-140 <5.71E+00 0.00E+00 5.71E+00 Be-7 <4.54E+01 0.00E+00 4.54E+01 K-40 1.63E+03 8.56E+01 6.97E+01 Media Type: SEDIMENT_BOTTOM Concentration (Activity): pCi/kg Sample Point 52 [ INDICATOR - S @ 3.8 miles ] 52 Sample ID: 251246 Sample Dates: 1/22/2013 - 1/22/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <2.84E+01 0.00E+00 2.84E+01 Co-58 2.84E+01 9.44E+00 2.51E+01 Fe-59 <6.26E+01 0.00E+00 6.26E+01 Co-60 2.40E+02 2.31E+01 2.71E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 111 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: SEDIMENT_BOTTOM Concentration (Activity): pCi/kg Sample Point 52 [ INDICATOR - S @ 3.8 miles ] 52 Sample ID: 251246 Sample Dates: 1/22/2013 - 1/22/2013 Nuclide Activity 1 Sigma Error LLD Zn-65 <5.93E+01 0.00E+00 5.93E+01 Zr-95 <4.15E+01 0.00E+00 4.15E+01 Nb-95 <2.66E+01 0.00E+00 2.66E+01 I-131 <3.35E+01 0.00E+00 3.35E+01 Cs-134 <2.05E+01 0.00E+00 2.05E+01 Cs-137 1.59E+02 1.22E+01 2.33E+01 Be-7 4.96E+02 1.17E+02 1.70E+02 K-40 8.75E+03 3.19E+02 2.25E+02 Co-57 <1.45E+01 0.00E+00 1.45E+01 Mo-99 <1.25E+03 0.00E+00 1.25E+03 Ag-110M <2.10E+01 0.00E+00 2.10E+01 Sb-122 <2.21E+02 0.00E+00 2.21E+02 Sb-125 <6.89E+01 0.00E+00 6.89E+01 Sample ID: 263085 Sample Dates: 7/10/2013 - 7/10/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.44E+01 0.00E+00 1.44E+01 Co-58 <1.26E+01 0.00E+00 1.26E+01 Fe-59 <3.06E+01 0.00E+00 3.06E+01 Co-60 6.00E+02 1.51E+01 1.36E+01 Zn-65 <3.16E+01 0.00E+00 3.16E+01 Zr-95 <2.54E+01 0.00E+00 2.54E+01 Nb-95 <1.48E+01 0.00E+00 1.48E+01 I-131 <2.12E+01 0.00E+00 2.12E+01 Cs-134 <1.11E+01 0.00E+00 1.11E+01 Cs-137 2.28E+02 8.66E+00 1.27E+01 Be-7 1.36E+02 4.31E+01 1.04E+02 K-40 1.10E+04 1.90E+02 9.45E+01 Co-57 <9.63E+00 0.00E+00 9.63E+00 Mo-99 <7.03E+02 0.00E+00 7.03E+02 Ag-110M <1.18E+01 0.00E+00 1.18E+01 Sb-122 <1.14E+02 0.00E+00 1.14E+02 Sb-125 7.70E+01 1.64E+01 3.16E+01 Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg Sample Point 26 [ INDICATOR - S @ 4.6 miles ] 26 Sample ID: 251244 Sample Dates: 1/22/2013 - 1/22/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.67E+01 0.00E+00 1.67E+01 Co-58 <1.90E+01 0.00E+00 1.90E+01 Fe-59 <5.01E+01 0.00E+00 5.01E+01 Co-60 <3.12E+01 0.00E+00 3.12E+01 Zn-65 <5.60E+01 0.00E+00 5.60E+01 Zr-95 <2.91E+01 0.00E+00 2.91E+01 Nb-95 <2.16E+01 0.00E+00 2.16E+01 I-131 <2.97E+01 0.00E+00 2.97E+01 Cs-134 <1.70E+01 0.00E+00 1.70E+01 Cs-137 <1.61E+01 0.00E+00 1.61E+01 Be-7 1.88E+02 7.41E+01 1.31E+02 K-40 8.62E+03 3.63E+02 1.84E+02 Co-57 <1.28E+01 0.00E+00 1.28E+01 Mo-99 <7.55E+02 0.00E+00 7.55E+02 Ag-110M <1.68E+01 0.00E+00 1.68E+01 Sb-122 <1.22E+02 0.00E+00 1.22E+02 Sb-125 <4.99E+01 0.00E+00 4.99E+01 Sample ID: 263083 Sample Dates: 7/10/2013 - 7/10/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.47E+01 0.00E+00 1.47E+01 Co-58 <1.39E+01 0.00E+00 1.39E+01 Fe-59 <3.59E+01 0.00E+00 3.59E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.32E+01 0.00E+00 3.32E+01 Zr-95 <2.53E+01 0.00E+00 2.53E+01 Nb-95 <1.58E+01 0.00E+00 1.58E+01 I-131 <2.15E+01 0.00E+00 2.15E+01 Cs-134 <1.29E+01 0.00E+00 1.29E+01 Cs-137 <1.40E+01 0.00E+00 1.40E+01 Be-7 <1.44E+02 0.00E+00 1.44E+02 K-40 9.94E+03 2.84E+02 1.18E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 112 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg Sample Point 26 [ INDICATOR - S @ 4.6 miles ] 26 Sample ID: 263083 Sample Dates: 7/10/2013 - 7/10/2013 Nuclide Activity 1 Sigma Error LLD Co-57 <7.94E+00 0.00E+00 7.94E+00 Mo-99 <7.11E+02 0.00E+00 7.11E+02 Ag-110M <1.27E+01 0.00E+00 1.27E+01 Sb-122 <1.17E+02 0.00E+00 1.17E+02 Sb-125 <3.46E+01 0.00E+00 3.46E+01 Sample Point 41 [ INDICATOR - S @ 3.8 miles ] 41 Sample ID: 251245 Sample Dates: 1/22/2013 - 1/22/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <1.66E+01 0.00E+00 1.66E+01 Co-58 <1.29E+01 0.00E+00 1.29E+01 Fe-59 <3.84E+01 0.00E+00 3.84E+01 Co-60 <1.88E+01 0.00E+00 1.88E+01 Zn-65 <3.73E+01 0.00E+00 3.73E+01 Zr-95 <2.84E+01 0.00E+00 2.84E+01 Nb-95 <1.68E+01 0.00E+00 1.68E+01 I-131 <1.94E+01 0.00E+00 1.94E+01 Cs-134 <1.14E+01 0.00E+00 1.14E+01 Cs-137 <1.67E+01 0.00E+00 1.67E+01 Be-7 1.77E+02 5.15E+01 9.80E+01 K-40 1.11E+04 3.03E+02 1.49E+02 Co-57 <8.14E+00 0.00E+00 8.14E+00 Mo-99 <5.21E+02 0.00E+00 5.21E+02 Ag-110M <1.22E+01 0.00E+00 1.22E+01 Sb-122 <7.98E+01 0.00E+00 7.98E+01 Sb-125 <3.05E+01 0.00E+00 3.05E+01 Sample ID: 263084 Sample Dates: 7/10/2013 - 7/10/2013 Nuclide Activity 1 Sigma Error LLD Mn-54 <2.06E+01 0.00E+00 2.06E+01 Co-58 <1.80E+01 0.00E+00 1.80E+01 Fe-59 <4.54E+01 0.00E+00 4.54E+01 Co-60 <1.96E+01 0.00E+00 1.96E+01 Zn-65 <4.50E+01 0.00E+00 4.50E+01 Zr-95 <4.11E+01 0.00E+00 4.11E+01 Nb-95 <1.86E+01 0.00E+00 1.86E+01 I-131 <3.15E+01 0.00E+00 3.15E+01 Cs-134 <1.51E+01 0.00E+00 1.51E+01 Cs-137 <1.99E+01 0.00E+00 1.99E+01 Be-7 <1.90E+02 0.00E+00 1.90E+02 K-40 1.07E+04 3.84E+02 2.62E+02 Co-57 <1.21E+01 0.00E+00 1.21E+01 Mo-99 <1.07E+03 0.00E+00 1.07E+03 Ag-110M <1.43E+01 0.00E+00 1.43E+01 Sb-122 <1.62E+02 0.00E+00 1.62E+02 Sb-125 <4.13E+01 0.00E+00 4.13E+01 Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 251058 Sample Dates: 12/31/2012 - 1/14/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.65E+00 0.00E+00 2.65E+00 K-40 4.36E+01 2.86E+00 3.24E+00 LLI-131 <5.61E-01 0.00E+00 5.61E-01 Sample ID: 251834 Sample Dates: 1/14/2013 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.50E+00 0.00E+00 2.50E+00 K-40 8.04E+00 2.19E+00 4.37E+00 LLI-131 <4.89E-01 0.00E+00 4.89E-01 Sample ID: 251864 Sample Dates: 12/31/2012 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.70E+00 4.81E-01 1.29E+00 Mn-54 <3.45E+00 0.00E+00 3.45E+00 Co-58 <4.16E+00 0.00E+00 4.16E+00 Fe-59 <6.92E+00 0.00E+00 6.92E+00 Co-60 <4.72E+00 0.00E+00 4.72E+00 Zn-65 <7.96E+00 0.00E+00 7.96E+00 Zr-95 <6.46E+00 0.00E+00 6.46E+00 Nb-95 <3.89E+00 0.00E+00 3.89E+00 I-131 <1.19E+01 0.00E+00 1.19E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 113 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 251864 Sample Dates: 12/31/2012 - 1/28/2013 Nuclide Activity 1 Sigma Error LLD Cs-134 <3.05E+00 0.00E+00 3.05E+00 Cs-137 <3.50E+00 0.00E+00 3.50E+00 BaLa-140 <1.19E+01 0.00E+00 1.19E+01 Be-7 <3.36E+01 0.00E+00 3.36E+01 K-40 7.27E+01 2.36E+01 4.38E+01 H3SW 8.43E+03 1.35E+02 1.61E+02 Sample ID: 252917 Sample Dates: 1/28/2013 - 2/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <4.31E+00 0.00E+00 4.31E+00 K-40 1.02E+01 3.79E+00 6.77E+00 LLI-131 <6.50E-01 0.00E+00 6.50E-01 Sample ID: 254113 Sample Dates: 2/11/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.51E+00 0.00E+00 2.51E+00 K-40 2.70E+01 2.26E+00 3.21E+00 LLI-131 <6.07E-01 0.00E+00 6.07E-01 Sample ID: 254118 Sample Dates: 1/28/2013 - 2/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.16E+00 4.96E-01 1.41E+00 Mn-54 <3.08E+00 0.00E+00 3.08E+00 Co-58 <4.24E+00 0.00E+00 4.24E+00 Fe-59 <9.73E+00 0.00E+00 9.73E+00 Co-60 <4.22E+00 0.00E+00 4.22E+00 Zn-65 <7.90E+00 0.00E+00 7.90E+00 Zr-95 <7.65E+00 0.00E+00 7.65E+00 Nb-95 <5.69E+00 0.00E+00 5.69E+00 I-131 <1.40E+01 0.00E+00 1.40E+01 Cs-134 <3.26E+00 0.00E+00 3.26E+00 Cs-137 <4.34E+00 0.00E+00 4.34E+00 BaLa-140 <5.65E+00 0.00E+00 5.65E+00 Be-7 <3.26E+01 0.00E+00 3.26E+01 K-40 6.42E+01 2.34E+01 3.65E+01 H3SW 9.25E+03 1.38E+02 1.54E+02 Sample ID: 255080 Sample Dates: 2/25/2013 - 3/11/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.10E+00 0.00E+00 3.10E+00 K-40 2.23E+01 3.36E+00 4.96E+00 LLI-131 <6.47E-01 0.00E+00 6.47E-01 Sample ID: 255972 Sample Dates: 3/11/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.86E+00 0.00E+00 1.86E+00 K-40 1.27E+01 1.80E+00 2.31E+00 LLI-131 <6.01E-01 0.00E+00 6.01E-01 Sample ID: 255976 Sample Dates: 2/25/2013 - 3/25/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.03E+00 4.98E-01 1.34E+00 Mn-54 <9.28E-01 0.00E+00 9.28E-01 Co-58 <1.07E+00 0.00E+00 1.07E+00 Fe-59 <2.86E+00 0.00E+00 2.86E+00 Co-60 <9.82E-01 0.00E+00 9.82E-01 Zn-65 <1.99E+00 0.00E+00 1.99E+00 Zr-95 <2.17E+00 0.00E+00 2.17E+00 Nb-95 <1.76E+00 0.00E+00 1.76E+00 I-131 <1.32E+01 0.00E+00 1.32E+01 Cs-134 <8.19E-01 0.00E+00 8.19E-01 Cs-137 <9.11E-01 0.00E+00 9.11E-01 BaLa-140 <5.66E+00 0.00E+00 5.66E+00 Be-7 <1.12E+01 0.00E+00 1.12E+01 K-40 7.26E+01 7.04E+00 9.65E+00 H3SW 8.48E+03 1.39E+02 1.78E+02 Sample ID: 256457 Sample Dates: 3/25/2013 - 4/8/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.35E+00 0.00E+00 2.35E+00 K-40 2.20E+01 2.44E+00 3.92E+00 LLI-131 <6.04E-01 0.00E+00 6.04E-01 Sample ID: 256981 Sample Dates: 3/25/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.50E+00 4.99E-01 1.39E+00 Mn-54 <3.78E+00 0.00E+00 3.78E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 114 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 256981 Sample Dates: 3/25/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Co-58 <4.12E+00 0.00E+00 4.12E+00 Fe-59 <9.59E+00 0.00E+00 9.59E+00 Co-60 <4.78E+00 0.00E+00 4.78E+00 Zn-65 <7.15E+00 0.00E+00 7.15E+00 Zr-95 <5.58E+00 0.00E+00 5.58E+00 Nb-95 <5.50E+00 0.00E+00 5.50E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <3.79E+00 0.00E+00 3.79E+00 Cs-137 <3.53E+00 0.00E+00 3.53E+00 BaLa-140 <1.26E+01 0.00E+00 1.26E+01 Be-7 <3.60E+01 0.00E+00 3.60E+01 K-40 7.35E+01 2.47E+01 4.93E+01 H3SW 7.00E+03 1.25E+02 1.68E+02 Sample ID: 256986 Sample Dates: 4/8/2013 - 4/22/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.68E+00 0.00E+00 2.68E+00 K-40 2.71E+01 2.59E+00 3.24E+00 LLI-131 <6.03E-01 0.00E+00 6.03E-01 Sample ID: 257818 Sample Dates: 4/22/2013 - 5/6/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.55E+00 0.00E+00 3.55E+00 K-40 2.15E+01 4.23E+00 5.12E+00 LLI-131 <5.79E-01 0.00E+00 5.79E-01 Sample ID: 258353 Sample Dates: 5/6/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.37E+00 0.00E+00 3.37E+00 K-40 1.29E+01 2.89E+00 4.86E+00 LLI-131 <6.28E-01 0.00E+00 6.28E-01 Sample ID: 258357 Sample Dates: 4/22/2013 - 5/20/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.30E+00 4.95E-01 1.39E+00 Mn-54 <3.61E+00 0.00E+00 3.61E+00 Co-58 <3.88E+00 0.00E+00 3.88E+00 Fe-59 <7.96E+00 0.00E+00 7.96E+00 Co-60 <5.43E+00 0.00E+00 5.43E+00 Zn-65 <8.54E+00 0.00E+00 8.54E+00 Zr-95 <6.33E+00 0.00E+00 6.33E+00 Nb-95 <5.22E+00 0.00E+00 5.22E+00 I-131 <1.19E+01 0.00E+00 1.19E+01 Cs-134 <3.14E+00 0.00E+00 3.14E+00 Cs-137 <3.01E+00 0.00E+00 3.01E+00 BaLa-140 <9.42E+00 0.00E+00 9.42E+00 Be-7 <3.65E+01 0.00E+00 3.65E+01 K-40 <6.59E+01 0.00E+00 6.59E+01 H3SW 6.98E+03 1.29E+02 1.80E+02 Sample ID: 259177 Sample Dates: 5/20/2013 - 6/3/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.74E+00 0.00E+00 2.74E+00 K-40 2.19E+01 2.49E+00 3.49E+00 LLI-131 <5.41E-01 0.00E+00 5.41E-01 Sample ID: 260561 Sample Dates: 5/20/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Beta 3.63E+00 4.97E-01 1.45E+00 Mn-54 <3.65E+00 0.00E+00 3.65E+00 Co-58 <3.90E+00 0.00E+00 3.90E+00 Fe-59 <7.25E+00 0.00E+00 7.25E+00 Co-60 <4.84E+00 0.00E+00 4.84E+00 Zn-65 <8.22E+00 0.00E+00 8.22E+00 Zr-95 <6.94E+00 0.00E+00 6.94E+00 Nb-95 <4.11E+00 0.00E+00 4.11E+00 I-131 <1.40E+01 0.00E+00 1.40E+01 Cs-134 <3.02E+00 0.00E+00 3.02E+00 Cs-137 <3.67E+00 0.00E+00 3.67E+00 BaLa-140 <7.20E+00 0.00E+00 7.20E+00 Be-7 <3.65E+01 0.00E+00 3.65E+01 K-40 6.79E+01 1.92E+01 4.60E+01 H3SW 6.66E+03 1.28E+02 1.80E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 115 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 260563 Sample Dates: 6/3/2013 - 6/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.25E+00 0.00E+00 2.25E+00 K-40 1.92E+01 2.56E+00 2.83E+00 LLI-131 <5.47E-01 0.00E+00 5.47E-01 Sample ID: 261857 Sample Dates: 6/18/2013 - 7/1/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.79E+00 0.00E+00 2.79E+00 K-40 4.15E+01 2.72E+00 3.17E+00 LLI-131 <5.70E-01 0.00E+00 5.70E-01 Sample ID: 263067 Sample Dates: 7/1/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.67E+00 0.00E+00 2.67E+00 K-40 3.87E+01 3.14E+00 3.15E+00 LLI-131 <6.33E-01 0.00E+00 6.33E-01 Sample ID: 263071 Sample Dates: 6/18/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.25E+00 4.60E-01 1.25E+00 Mn-54 <5.21E+00 0.00E+00 5.21E+00 Co-58 <4.75E+00 0.00E+00 4.75E+00 Fe-59 <1.22E+01 0.00E+00 1.22E+01 Co-60 <4.56E+00 0.00E+00 4.56E+00 Zn-65 <1.07E+01 0.00E+00 1.07E+01 Zr-95 <7.07E+00 0.00E+00 7.07E+00 Nb-95 <5.60E+00 0.00E+00 5.60E+00 I-131 <1.23E+01 0.00E+00 1.23E+01 Cs-134 <4.10E+00 0.00E+00 4.10E+00 Cs-137 <5.54E+00 0.00E+00 5.54E+00 BaLa-140 <1.34E+01 0.00E+00 1.34E+01 Be-7 3.21E+01 1.48E+01 4.10E+01 K-40 5.00E+01 2.41E+01 6.44E+01 H3SW 7.03E+03 1.28E+02 1.74E+02 Sample ID: 264617 Sample Dates: 7/15/2013 - 7/29/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.29E+00 0.00E+00 3.29E+00 K-40 2.80E+01 2.76E+00 3.46E+00 LLI-131 <6.29E-01 0.00E+00 6.29E-01 Sample ID: 266211 Sample Dates: 7/29/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.70E+00 0.00E+00 2.70E+00 K-40 1.06E+01 1.90E+00 3.19E+00 LLI-131 <5.60E-01 0.00E+00 5.60E-01 Sample ID: 266506 Sample Dates: 7/15/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Beta 2.91E+00 4.77E-01 1.43E+00 Mn-54 <3.54E+00 0.00E+00 3.54E+00 Co-58 <4.33E+00 0.00E+00 4.33E+00 Fe-59 <9.93E+00 0.00E+00 9.93E+00 Co-60 <4.75E+00 0.00E+00 4.75E+00 Zn-65 <8.90E+00 0.00E+00 8.90E+00 Zr-95 <6.08E+00 0.00E+00 6.08E+00 Nb-95 <6.03E+00 0.00E+00 6.03E+00 I-131 <1.44E+01 0.00E+00 1.44E+01 Cs-134 <3.19E+00 0.00E+00 3.19E+00 Cs-137 <4.20E+00 0.00E+00 4.20E+00 BaLa-140 <7.38E+00 0.00E+00 7.38E+00 Be-7 <3.93E+01 0.00E+00 3.93E+01 K-40 <7.30E+01 0.00E+00 7.30E+01 H3SW 6.38E+03 1.21E+02 1.70E+02 Sample ID: 267953 Sample Dates: 8/12/2013 - 8/26/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <3.12E+00 0.00E+00 3.12E+00 K-40 1.26E+01 3.09E+00 4.60E+00 LLI-131 <6.43E-01 0.00E+00 6.43E-01 Sample ID: 269889 Sample Dates: 8/26/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.56E+00 0.00E+00 2.56E+00 K-40 1.73E+01 2.34E+00 3.74E+00 LLI-131 <6.10E-01 0.00E+00 6.10E-01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 116 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 269893 Sample Dates: 8/12/2013 - 9/9/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.69E+00 4.87E-01 1.32E+00 Mn-54 <4.43E+00 0.00E+00 4.43E+00 Co-58 <3.82E+00 0.00E+00 3.82E+00 Fe-59 <1.04E+01 0.00E+00 1.04E+01 Co-60 <4.06E+00 0.00E+00 4.06E+00 Zn-65 <7.29E+00 0.00E+00 7.29E+00 Zr-95 <7.30E+00 0.00E+00 7.30E+00 Nb-95 <5.57E+00 0.00E+00 5.57E+00 I-131 <1.42E+01 0.00E+00 1.42E+01 Cs-134 <3.93E+00 0.00E+00 3.93E+00 Cs-137 <4.51E+00 0.00E+00 4.51E+00 BaLa-140 <1.16E+01 0.00E+00 1.16E+01 Be-7 <3.46E+01 0.00E+00 3.46E+01 K-40 4.98E+01 1.99E+01 3.63E+01 H3SW 6.61E+03 1.16E+02 1.50E+02 Sample ID: 271642 Sample Dates: 9/9/2013 - 9/23/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.71E+00 0.00E+00 2.71E+00 K-40 1.96E+01 2.07E+00 3.76E+00 LLI-131 <5.75E-01 0.00E+00 5.75E-01 Sample ID: 272603 Sample Dates: 9/23/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.14E+00 0.00E+00 2.14E+00 K-40 4.21E+01 2.66E+00 2.56E+00 LLI-131 <5.48E-01 0.00E+00 5.48E-01 Sample ID: 272607 Sample Dates: 9/9/2013 - 10/7/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.54E+00 4.84E-01 1.24E+00 Mn-54 <3.08E+00 0.00E+00 3.08E+00 Co-58 <3.69E+00 0.00E+00 3.69E+00 Fe-59 <8.76E+00 0.00E+00 8.76E+00 Co-60 <4.10E+00 0.00E+00 4.10E+00 Zn-65 <9.79E+00 0.00E+00 9.79E+00 Zr-95 <7.26E+00 0.00E+00 7.26E+00 Nb-95 <4.91E+00 0.00E+00 4.91E+00 I-131 <1.43E+01 0.00E+00 1.43E+01 Cs-134 <3.11E+00 0.00E+00 3.11E+00 Cs-137 <3.36E+00 0.00E+00 3.36E+00 BaLa-140 <1.03E+01 0.00E+00 1.03E+01 Be-7 <3.43E+01 0.00E+00 3.43E+01 K-40 5.98E+01 2.39E+01 4.22E+01 H3SW 8.01E+03 1.28E+02 1.55E+02 Sample ID: 274162 Sample Dates: 10/7/2013 - 10/21/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.68E+00 0.00E+00 2.68E+00 K-40 4.50E+01 2.89E+00 3.45E+00 LLI-131 <5.78E-01 0.00E+00 5.78E-01 Sample ID: 274977 Sample Dates: 10/21/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.63E+00 0.00E+00 1.63E+00 K-40 <4.20E+00 0.00E+00 4.20E+00 LLI-131 <5.57E-01 0.00E+00 5.57E-01 Sample ID: 274981 Sample Dates: 10/7/2013 - 11/4/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.59E+00 4.84E-01 1.23E+00 Mn-54 <3.29E+00 0.00E+00 3.29E+00 Co-58 <3.51E+00 0.00E+00 3.51E+00 Fe-59 <7.33E+00 0.00E+00 7.33E+00 Co-60 <4.38E+00 0.00E+00 4.38E+00 Zn-65 <7.00E+00 0.00E+00 7.00E+00 Zr-95 <6.49E+00 0.00E+00 6.49E+00 Nb-95 <4.88E+00 0.00E+00 4.88E+00 I-131 <1.38E+01 0.00E+00 1.38E+01 Cs-134 <3.17E+00 0.00E+00 3.17E+00 Cs-137 <4.00E+00 0.00E+00 4.00E+00 BaLa-140 <8.24E+00 0.00E+00 8.24E+00 Be-7 <3.44E+01 0.00E+00 3.44E+01 K-40 1.73E+02 2.45E+01 2.75E+01 H3SW 1.10E+04 1.57E+02 1.79E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 117 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 26 [ INDICATOR - S @ 4.7 miles ] 26 Sample ID: 277330 Sample Dates: 11/4/2013 - 11/18/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.50E+00 0.00E+00 2.50E+00 K-40 1.56E+01 2.35E+00 3.47E+00 LLI-131 <5.42E-01 0.00E+00 5.42E-01 Sample ID: 279170 Sample Dates: 11/18/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.67E+00 0.00E+00 1.67E+00 K-40 1.26E+01 1.38E+00 2.21E+00 LLI-131 <4.02E-01 0.00E+00 4.02E-01 Sample ID: 279174 Sample Dates: 11/4/2013 - 12/2/2013 Nuclide Activity 1 Sigma Error LLD Beta 5.58E+00 4.94E-01 1.28E+00 Mn-54 <3.91E+00 0.00E+00 3.91E+00 Co-58 <5.08E+00 0.00E+00 5.08E+00 Fe-59 <8.68E+00 0.00E+00 8.68E+00 Co-60 <4.48E+00 0.00E+00 4.48E+00 Zn-65 <9.39E+00 0.00E+00 9.39E+00 Zr-95 <8.75E+00 0.00E+00 8.75E+00 Nb-95 <4.45E+00 0.00E+00 4.45E+00 I-131 <1.45E+01 0.00E+00 1.45E+01 Cs-134 <3.99E+00 0.00E+00 3.99E+00 Cs-137 <4.08E+00 0.00E+00 4.08E+00 BaLa-140 <7.44E+00 0.00E+00 7.44E+00 Be-7 <4.17E+01 0.00E+00 4.17E+01 K-40 1.76E+02 3.23E+01 4.40E+01 H3SW 1.06E+04 1.55E+02 1.70E+02 Sample ID: 280453 Sample Dates: 12/2/2013 - 12/16/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <2.32E+00 0.00E+00 2.32E+00 K-40 4.61E+01 2.53E+00 2.71E+00 LLI-131 <6.02E-01 0.00E+00 6.02E-01 Sample ID: 280958 Sample Dates: 12/16/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Be-7 <1.82E+00 0.00E+00 1.82E+00 K-40 1.53E+01 1.54E+00 2.14E+00 LLI-131 <4.27E-01 0.00E+00 4.27E-01 Sample ID: 280959 Sample Dates: 12/2/2013 - 12/30/2013 Nuclide Activity 1 Sigma Error LLD Beta 4.50E+00 4.55E-01 1.21E+00 Mn-54 <4.10E+00 0.00E+00 4.10E+00 Co-58 <3.98E+00 0.00E+00 3.98E+00 Fe-59 <8.83E+00 0.00E+00 8.83E+00 Co-60 <4.31E+00 0.00E+00 4.31E+00 Zn-65 <6.09E+00 0.00E+00 6.09E+00 Zr-95 <6.78E+00 0.00E+00 6.78E+00 Nb-95 <5.27E+00 0.00E+00 5.27E+00 I-131 <1.34E+01 0.00E+00 1.34E+01 Cs-134 <3.28E+00 0.00E+00 3.28E+00 Cs-137 <3.94E+00 0.00E+00 3.94E+00 BaLa-140 <1.11E+01 0.00E+00 1.11E+01 Be-7 <3.86E+01 0.00E+00 3.86E+01 K-40 1.27E+02 2.16E+01 3.03E+01 H3SW 1.03E+04 1.66E+02 2.29E+02 Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 1 [ INDICATOR - N @ 2.6 miles ] TLD RING TLD_INNER1 Sample ID: 114914 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.25E+01 Sample ID: 262761 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.7 Sample ID: 272273 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.4 Sample ID: 281062 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.7 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 118 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 2 [ INDICATOR - NNE @ 1.4 miles ] TLD RING TLD_INNER2 Sample ID: 114915 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.31E+01 Sample ID: 262801 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.5 Sample ID: 272277 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.1 Sample ID: 280969 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 13.1 Sample Point 3 [ INDICATOR - ENE @ 1.9 miles ] TLD RING TLD_INNER3 Sample ID: 114916 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.10E+01 Sample ID: 262762 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.0 Sample ID: 272189 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.7 Sample ID: 280970 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.3 Sample Point 4 [ INDICATOR - NNE @ 3.1 miles ] TLD RING TLD_SPEC4 Sample ID: 114917 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.11E+01 Sample ID: 262763 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.3 Sample ID: 272190 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.4 Sample ID: 280971 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.5 Sample Point 5 [ CONTROL - WNW @ 12 miles ] TLD RING TLD_CTRL5 Sample ID: 114918 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.56E+01 Sample ID: 262764 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.9 Sample ID: 272191 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 15.7 Sample ID: 280972 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 14.6 Sample Point 6 [ INDICATOR - ENE @ 0.8 miles ] TLD RING TLD_INNER6 Sample ID: 114919 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.12E+01 Sample ID: 262765 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.6 Sample ID: 272192 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.0 Sample ID: 280973 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.2 Sample Point 7 [ INDICATOR - E @ 0.7 miles ] TLD RING TLD_INNER7 Sample ID: 114920 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.23E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 119 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 7 [ INDICATOR - E @ 0.7 miles ] TLD RING TLD_INNER7 Sample ID: 262766 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.6 Sample ID: 272193 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.9 Sample ID: 280974 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.9 Sample Point 8 [ INDICATOR - ESE @ 0.6 miles ] TLD RING TLD_INNER8 Sample ID: 114921 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.17E+01 Sample ID: 262767 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.8 Sample ID: 272194 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.0 Sample ID: 280975 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.4 Sample Point 9 [ INDICATOR - SE @ 2.2 miles ] TLD RING TLD_INNER9 Sample ID: 114922 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.30E+00 Sample ID: 262785 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 8.5 Sample ID: 272223 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 9.7 Sample ID: 281004 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 9.8 Sample Point 10 [ INDICATOR - SSE @ 2.2 miles ] TLD RING TLD_INNER10 Sample ID: 114923 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.06E+01 Sample ID: 262786 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.8 Sample ID: 272224 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.1 Sample ID: 281005 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.9 Sample Point 11 [ INDICATOR - S @ 0.6 miles ] TLD RING TLD_INNER11 Sample ID: 114924 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.03E+01 Sample ID: 262787 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.4 Sample ID: 272225 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.0 Sample ID: 281006 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.6 Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ] TLD RING TLD_INNER12 Sample ID: 114925 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.01E+01 Sample ID: 262788 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.3 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 120 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ] TLD RING TLD_INNER12 Sample ID: 272226 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 9.9 Sample ID: 281007 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.0 Sample Point 13 [ INDICATOR - WSW @ 0.7 miles ] TLD RING TLD_INNER13 Sample ID: 114926 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.00E+01 Sample ID: 262789 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.6 Sample ID: 272227 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 10.8 Sample ID: 281008 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.4 Sample Point 14 [ INDICATOR - W @ 1.5 miles ] TLD RING TLD_INNER14 Sample ID: 114927 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.24E+01 Sample ID: 262790 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 13.4 Sample ID: 272228 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.5 Sample ID: 281009 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 14.7 Sample Point 15 [ INDICATOR - W @ 2 miles ] TLD RING TLD_INNER15 Sample ID: 114928 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.01E+01 Sample ID: 262791 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.2 Sample ID: 272229 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 10.3 Sample ID: 281010 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.3 Sample Point 19 [ INDICATOR - NNE @ 5 miles ] TLD RING TLD_OUTER19 Sample ID: 114929 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.80E+00 Sample ID: 262792 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.5 Sample ID: 272230 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 10.2 Sample ID: 281011 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.1 Sample Point 20 [ INDICATOR - N @ 4.5 miles ] TLD RING TLD_OUTER20 Sample ID: 114930 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.21E+01 Sample ID: 262793 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.1 Sample ID: 272231 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.4 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 121 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 20 [ INDICATOR - N @ 4.5 miles ] TLD RING TLD_OUTER20 Sample ID: 281012 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.7 Sample Point 21 [ INDICATOR - ENE @ 4.8 miles ] TLD RING TLD_OUTER21 Sample ID: 114931 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.29E+01 Sample ID: 262794 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.0 Sample ID: 272232 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.6 Sample ID: 281013 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.7 Sample Point 22 [ INDICATOR - E @ 4.3 miles ] TLD RING TLD_OUTER22 Sample ID: 114932 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.90E+00 Sample ID: 262795 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.4 Sample ID: 272233 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 10.5 Sample ID: 281014 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.0 Sample Point 23 [ INDICATOR - ESE @ 4.8 miles ] TLD RING TLD_OUTER23 Sample ID: 114933 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.24E+01 Sample ID: 262796 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.0 Sample ID: 272234 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.2 Sample ID: 281015 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.3 Sample Point 24 [ INDICATOR - SE @ 4 miles ] TLD RING TLD_OUTER24 Sample ID: 114934 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.10E+01 Sample ID: 262797 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.9 Sample ID: 272235 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.2 Sample ID: 281016 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.5 Sample Point 25 [ INDICATOR - SSE @ 4.7 miles ] TLD RING TLD_OUTER25 Sample ID: 114935 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.35E+01 Sample ID: 262798 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.4 Sample ID: 272236 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 14.2 Sample ID: 281017 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.5 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 122 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 26 [ INDICATOR - S @ 4.7 miles ] TLD RING TLD_OUTER26 Sample ID: 114936 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.15E+01 Sample ID: 262799 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.7 Sample ID: 272237 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.1 Sample ID: 281018 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.0 Sample Point 27 [ INDICATOR - SSW @ 4.8 miles ] TLD RING TLD_OUTER27 Sample ID: 114937 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.30E+00 Sample ID: 262760 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 8.4 Sample ID: 272274 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 9.9 Sample ID: 281063 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 9.3 Sample Point 28 [ INDICATOR - SW @ 4.8 miles ] TLD RING TLD_OUTER28 Sample ID: 114938 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.80E+00 Sample ID: 262758 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 8.6 Sample ID: 272275 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 10.8 Sample ID: 281064 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 9.2 Sample Point 29 [ INDICATOR - WSW @ 5.7 miles ] TLD RING TLD_OUTER29 Sample ID: 114939 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.30E+01 Sample ID: 262768 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.3 Sample ID: 272195 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.4 Sample ID: 280976 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 13.1 Sample Point 30 [ INDICATOR - W @ 5.6 miles ] TLD RING TLD_OUTER30 Sample ID: 114940 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.20E+00 Sample ID: 262770 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 8.8 Sample ID: 272197 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 9.7 Sample ID: 280978 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 9.3 Sample Point 31 [ INDICATOR - WNW @ 4.7 miles ] TLD RING TLD_OUTER31 Sample ID: 114941 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 8.80E+00 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 123 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 31 [ INDICATOR - WNW @ 4.7 miles ] TLD RING TLD_OUTER31 Sample ID: 262769 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 8.6 Sample ID: 272196 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 9.2 Sample ID: 280977 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 9.1 Sample Point 32 [ INDICATOR - NNW @ 6.4 miles ] TLD RING TLD_SPEC32 Sample ID: 114942 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.19E+01 Sample ID: 262771 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.1 Sample ID: 272198 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.7 Sample ID: 280979 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.6 Sample Point 33 [ INDICATOR - NNW @ 4.5 miles ] TLD RING TLD_OUTER33 Sample ID: 114943 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.11E+01 Sample ID: 262772 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.2 Sample ID: 272199 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.0 Sample ID: 280980 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.3 Sample Point 34 [ INDICATOR - NE @ 8.7 miles ] TLD RING TLD_SPEC34 Sample ID: 114944 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.46E+01 Sample ID: 262773 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 14.5 Sample ID: 280981 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 16.1 Sample Point 35 [ INDICATOR - E @ 6.9 miles ] TLD RING TLD_SPEC35 Sample ID: 114945 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.26E+01 Sample ID: 262774 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.5 Sample ID: 272201 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.6 Sample ID: 280982 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 9.6 Sample Point 36 [ INDICATOR - E @ 10.9 miles ] TLD RING TLD_SPEC36 Sample ID: 114946 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.60E+00 Sample ID: 262775 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.2 Sample ID: 272202 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 10.1 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 124 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 36 [ INDICATOR - E @ 10.9 miles ] TLD RING TLD_SPEC36 Sample ID: 280983 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.2 Sample Point 37 [ INDICATOR - ESE @ 9.2 miles ] TLD RING TLD_SPEC37 Sample ID: 262776 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.4 Sample ID: 272203 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.5 Sample ID: 280984 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.7 Sample Point 48 [ INDICATOR - N @ 4.5 miles ] TLD RING TLD_OUTER48 Sample ID: 114947 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.27E+01 Sample ID: 262777 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.2 Sample ID: 272204 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 14.0 Sample ID: 280985 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 13.5 Sample Point 49 [ INDICATOR - NE @ 2.5 miles ] TLD RING TLD_INNER49 Sample ID: 114948 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.33E+01 Sample ID: 262778 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.8 Sample ID: 272205 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 14.3 Sample ID: 280986 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 14.3 Sample Point 50 [ INDICATOR - ESE @ 2.6 miles ] TLD RING TLD_INNER50 Sample ID: 114949 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.10E+01 Sample ID: 262779 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.6 Sample ID: 272206 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.6 Sample ID: 280987 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.6 Sample Point 53 [ INDICATOR - NW @ 5.8 miles ] TLD RING TLD_OUTER53 Sample ID: 114950 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 9.90E+00 Sample ID: 262780 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 9.4 Sample ID: 272207 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 10.7 Sample ID: 280988 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 10.5 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 125 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 56 [ INDICATOR - WSW @ 3 miles ] TLD RING TLD_INNER56 Sample ID: 114951 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.16E+01 Sample ID: 262781 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.1 Sample ID: 272208 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 12.3 Sample ID: 280989 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.5 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] TLD RING TLD_INNER63 Sample ID: 114952 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.22E+01 Sample ID: 262782 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.9 Sample ID: 272209 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.4 Sample ID: 280990 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.6 Sample Point 67 [ INDICATOR - ENE @ 1.2 miles ] TLD RING TLD_INNER67 Sample ID: 114953 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.11E+01 Sample ID: 262783 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 10.3 Sample ID: 272210 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.5 Sample ID: 280991 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.0 Sample Point 93 [ INDICATOR - WNW @ 2.2 miles ] TLD RING TLD_INNER93 Sample ID: 114954 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.26E+01 Sample ID: 262784 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.0 Sample ID: 272211 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 13.4 Sample ID: 280992 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 11.9 Sample Point 94 [ INDICATOR - NW @ 2 miles ] TLD RING TLD_INNER94 Sample ID: 114955 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.29E+01 Sample ID: 262800 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 12.5 Sample ID: 272212 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 14.3 Sample ID: 280993 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 14.2 Sample Point 95 [ INDICATOR - NNW @ 2 miles ] TLD RING TLD_INNER95 Sample ID: 114956 Sample Dates: 2/15/2013 - 2/15/2013 Nuclide Activity mR/Std Qtr 1.06E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 126 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 95 [ INDICATOR - NNW @ 2 miles ] TLD RING TLD_INNER95 Sample ID: 262759 Sample Dates: 4/10/2013 - 7/10/2013 Nuclide Activity mR/Std Qtr 11.1 Sample ID: 272276 Sample Dates: 7/10/2013 - 10/9/2013 Nuclide Activity mR/Std Qtr 11.7 Sample ID: 281065 Sample Dates: 10/9/2013 - 1/9/2014 Nuclide Activity mR/Std Qtr 12.0 Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 5 [ CONTROL - NNW @ 12 miles ] 5 Sample ID: 257908 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FIGLEAF I-131 <1.59E+01 0.00E+00 1.59E+01 Cs-134 <1.80E+01 0.00E+00 1.80E+01 Cs-137 <2.00E+01 0.00E+00 2.00E+01 Be-7 9.27E+02 8.45E+01 1.08E+02 K-40 3.30E+03 2.14E+02 1.52E+02 Sample ID: 257909 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.47E+01 0.00E+00 1.47E+01 Cs-134 <1.77E+01 0.00E+00 1.77E+01 Cs-137 <2.14E+01 0.00E+00 2.14E+01 Be-7 4.55E+02 8.18E+01 1.35E+02 K-40 3.15E+03 2.26E+02 1.83E+02 Sample ID: 257910 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.60E+01 0.00E+00 2.60E+01 Cs-134 <2.10E+01 0.00E+00 2.10E+01 Cs-137 <3.20E+01 0.00E+00 3.20E+01 Be-7 5.72E+02 9.29E+01 1.62E+02 K-40 3.54E+03 3.55E+02 2.59E+02 Sample ID: 259411 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.67E+01 0.00E+00 2.67E+01 Cs-134 <1.94E+01 0.00E+00 1.94E+01 Cs-137 <3.43E+01 0.00E+00 3.43E+01 Be-7 1.05E+03 1.34E+02 1.83E+02 K-40 4.13E+03 3.34E+02 2.92E+02 Sample ID: 259412 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.74E+01 0.00E+00 1.74E+01 Cs-134 <1.72E+01 0.00E+00 1.72E+01 Cs-137 <2.46E+01 0.00E+00 2.46E+01 Be-7 4.70E+02 8.35E+01 1.33E+02 K-40 3.78E+03 2.53E+02 2.37E+02 Sample ID: 259413 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FIGLEAF I-131 <2.90E+01 0.00E+00 2.90E+01 Cs-134 <2.21E+01 0.00E+00 2.21E+01 Cs-137 <3.16E+01 0.00E+00 3.16E+01 Be-7 1.48E+03 1.26E+02 1.96E+02 K-40 5.15E+03 3.29E+02 1.77E+02 Sample ID: 262834 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FIGLEAF I-131 <2.59E+01 0.00E+00 2.59E+01 Cs-134 <1.91E+01 0.00E+00 1.91E+01 Cs-137 <2.30E+01 0.00E+00 2.30E+01 Be-7 2.87E+03 1.89E+02 1.90E+02 K-40 5.04E+03 3.23E+02 2.06E+02 Sample ID: 262835 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.33E+01 0.00E+00 2.33E+01 Cs-134 <2.44E+01 0.00E+00 2.44E+01 Cs-137 <3.17E+01 0.00E+00 3.17E+01 Be-7 2.04E+03 1.67E+02 1.86E+02 K-40 3.05E+03 2.70E+02 1.76E+02 Sample ID: 262836 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.33E+01 0.00E+00 2.33E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 127 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 5 [ CONTROL - NNW @ 12 miles ] 5 Sample ID: 262836 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM Cs-134 <2.32E+01 0.00E+00 2.32E+01 Cs-137 <2.66E+01 0.00E+00 2.66E+01 Be-7 1.90E+03 1.94E+02 2.35E+02 K-40 2.54E+03 3.00E+02 3.16E+02 Sample ID: 265245 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FIGLEAF I-131 <2.28E+01 0.00E+00 2.28E+01 Cs-134 <1.73E+01 0.00E+00 1.73E+01 Cs-137 <2.20E+01 0.00E+00 2.20E+01 Be-7 2.49E+03 1.38E+02 1.58E+02 K-40 4.71E+03 3.08E+02 2.62E+02 Sample ID: 265246 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.42E+01 0.00E+00 2.42E+01 Cs-134 <2.58E+01 0.00E+00 2.58E+01 Cs-137 <3.21E+01 0.00E+00 3.21E+01 Be-7 1.95E+03 1.93E+02 2.02E+02 K-40 3.47E+03 3.44E+02 2.28E+02 Sample ID: 265247 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.65E+01 0.00E+00 1.65E+01 Cs-134 <1.42E+01 0.00E+00 1.42E+01 Cs-137 <1.98E+01 0.00E+00 1.98E+01 Be-7 1.87E+03 1.13E+02 9.56E+01 K-40 3.06E+03 2.19E+02 1.63E+02 Sample ID: 269929 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FIGLEAF I-131 <2.80E+01 0.00E+00 2.80E+01 Cs-134 <1.99E+01 0.00E+00 1.99E+01 Cs-137 <2.48E+01 0.00E+00 2.48E+01 Be-7 1.53E+03 1.47E+02 1.90E+02 K-40 4.63E+03 3.13E+02 1.87E+02 Sample ID: 269930 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.43E+01 0.00E+00 2.43E+01 Cs-134 <2.25E+01 0.00E+00 2.25E+01 Cs-137 <2.54E+01 0.00E+00 2.54E+01 Be-7 8.66E+02 1.22E+02 2.00E+02 K-40 4.20E+03 2.72E+02 1.32E+02 Sample ID: 269931 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.89E+01 0.00E+00 2.89E+01 Cs-134 <2.18E+01 0.00E+00 2.18E+01 Cs-137 <2.63E+01 0.00E+00 2.63E+01 Be-7 1.90E+03 1.61E+02 1.69E+02 K-40 2.99E+03 2.87E+02 2.43E+02 Sample ID: 272623 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: FIGLEAF I-131 <2.32E+01 0.00E+00 2.32E+01 Cs-134 <2.15E+01 0.00E+00 2.15E+01 Cs-137 <2.87E+01 0.00E+00 2.87E+01 Be-7 5.73E+03 2.34E+02 1.46E+02 K-40 6.06E+03 3.43E+02 2.81E+02 Sample ID: 272624 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.42E+01 0.00E+00 2.42E+01 Cs-134 <3.19E+01 0.00E+00 3.19E+01 Cs-137 <2.47E+01 0.00E+00 2.47E+01 Be-7 8.94E+02 1.50E+02 2.79E+02 K-40 2.90E+03 3.41E+02 3.76E+02 Sample ID: 272625 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.29E+01 0.00E+00 2.29E+01 Cs-134 <2.18E+01 0.00E+00 2.18E+01 Cs-137 <2.21E+01 0.00E+00 2.21E+01 Be-7 1.01E+03 1.06E+02 1.56E+02 K-40 3.20E+03 2.44E+02 2.71E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 128 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ] 12 Sample ID: 257911 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.96E+01 0.00E+00 1.96E+01 Cs-134 <1.72E+01 0.00E+00 1.72E+01 Cs-137 <2.28E+01 0.00E+00 2.28E+01 Be-7 4.74E+02 1.04E+02 1.51E+02 K-40 3.03E+03 2.48E+02 1.91E+02 Sample ID: 257912 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.55E+01 0.00E+00 2.55E+01 Cs-134 <2.85E+01 0.00E+00 2.85E+01 Cs-137 <3.12E+01 0.00E+00 3.12E+01 Be-7 7.09E+02 1.24E+02 2.01E+02 K-40 3.87E+03 3.59E+02 3.88E+02 Sample ID: 257913 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <2.53E+01 0.00E+00 2.53E+01 Cs-134 <1.57E+01 0.00E+00 1.57E+01 Cs-137 <2.24E+01 0.00E+00 2.24E+01 Be-7 1.94E+03 1.64E+02 1.79E+02 K-40 4.15E+03 2.82E+02 1.87E+02 Sample ID: 259414 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.23E+01 0.00E+00 2.23E+01 Cs-134 <2.01E+01 0.00E+00 2.01E+01 Cs-137 <2.20E+01 0.00E+00 2.20E+01 Be-7 7.88E+02 1.09E+02 1.67E+02 K-40 3.49E+03 2.65E+02 5.45E+01 Sample ID: 259415 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <3.49E+01 0.00E+00 3.49E+01 Cs-134 <2.68E+01 0.00E+00 2.68E+01 Cs-137 <3.39E+01 0.00E+00 3.39E+01 Be-7 1.16E+03 1.73E+02 2.51E+02 K-40 3.37E+03 3.65E+02 2.51E+02 Sample ID: 259416 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.48E+01 0.00E+00 2.48E+01 Cs-134 <2.13E+01 0.00E+00 2.13E+01 Cs-137 <2.15E+01 0.00E+00 2.15E+01 Be-7 6.52E+02 1.20E+02 1.70E+02 K-40 3.43E+03 2.85E+02 2.51E+02 Sample ID: 262837 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.89E+01 0.00E+00 1.89E+01 Cs-134 <1.93E+01 0.00E+00 1.93E+01 Cs-137 <1.78E+01 0.00E+00 1.78E+01 Be-7 1.39E+03 1.08E+02 1.54E+02 K-40 2.44E+03 1.96E+02 1.66E+02 Sample ID: 262838 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <3.10E+01 0.00E+00 3.10E+01 Cs-134 <3.23E+01 0.00E+00 3.23E+01 Cs-137 <3.79E+01 0.00E+00 3.79E+01 Be-7 1.15E+03 1.86E+02 2.40E+02 K-40 4.42E+03 3.70E+02 2.60E+02 Sample ID: 262839 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <3.40E+01 0.00E+00 3.40E+01 Cs-134 <3.97E+01 0.00E+00 3.97E+01 Cs-137 <3.99E+01 0.00E+00 3.99E+01 Be-7 2.76E+03 2.15E+02 2.63E+02 K-40 3.32E+03 3.87E+02 4.51E+02 Sample ID: 265248 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.01E+01 0.00E+00 2.01E+01 Cs-134 <2.20E+01 0.00E+00 2.20E+01 Cs-137 <2.06E+01 0.00E+00 2.06E+01 Be-7 4.61E+02 1.17E+02 2.12E+02 K-40 1.71E+03 2.91E+02 3.48E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 129 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 12 [ INDICATOR - SSW @ 0.9 miles ] 12 Sample ID: 265249 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <2.15E+01 0.00E+00 2.15E+01 Cs-134 <2.28E+01 0.00E+00 2.28E+01 Cs-137 <3.00E+01 0.00E+00 3.00E+01 Be-7 1.55E+03 1.54E+02 1.66E+02 K-40 2.82E+03 2.74E+02 2.78E+02 Sample ID: 265250 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.00E+01 0.00E+00 2.00E+01 Cs-134 <1.72E+01 0.00E+00 1.72E+01 Cs-137 <1.73E+01 0.00E+00 1.73E+01 Be-7 1.46E+03 1.36E+02 1.43E+02 K-40 2.61E+03 2.25E+02 2.34E+02 Sample ID: 269932 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.96E+01 0.00E+00 1.96E+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 8.60E+02 1.12E+02 1.40E+02 K-40 2.28E+03 1.78E+02 1.33E+02 Sample ID: 269933 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <3.34E+01 0.00E+00 3.34E+01 Cs-134 <2.27E+01 0.00E+00 2.27E+01 Cs-137 <3.26E+01 0.00E+00 3.26E+01 Be-7 3.49E+03 2.23E+02 2.27E+02 K-40 2.56E+03 2.69E+02 2.93E+02 Sample ID: 269934 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.70E+01 0.00E+00 2.70E+01 Cs-134 <2.19E+01 0.00E+00 2.19E+01 Cs-137 <2.69E+01 0.00E+00 2.69E+01 Be-7 1.18E+03 1.33E+02 2.25E+02 K-40 2.66E+03 2.36E+02 2.36E+02 Sample ID: 272626 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <3.66E+01 0.00E+00 3.66E+01 Cs-134 <2.87E+01 0.00E+00 2.87E+01 Cs-137 <4.13E+01 0.00E+00 4.13E+01 Be-7 1.61E+03 1.79E+02 2.73E+02 K-40 4.16E+03 3.60E+02 3.27E+02 Sample ID: 272627 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <2.55E+01 0.00E+00 2.55E+01 Cs-134 <1.92E+01 0.00E+00 1.92E+01 Cs-137 <2.90E+01 0.00E+00 2.90E+01 Be-7 2.72E+03 2.13E+02 1.95E+02 K-40 1.29E+03 2.01E+02 8.50E+01 Sample ID: 272628 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.83E+01 0.00E+00 2.83E+01 Cs-134 <1.98E+01 0.00E+00 1.98E+01 Cs-137 <2.41E+01 0.00E+00 2.41E+01 Be-7 1.13E+03 1.86E+02 2.86E+02 K-40 1.75E+03 2.68E+02 3.16E+02 Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 257914 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <3.62E+01 0.00E+00 3.62E+01 Cs-134 <3.42E+01 0.00E+00 3.42E+01 Cs-137 <4.04E+01 0.00E+00 4.04E+01 Be-7 7.07E+02 1.49E+02 2.67E+02 K-40 2.52E+03 3.65E+02 5.82E+02 Sample ID: 257915 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <1.93E+01 0.00E+00 1.93E+01 Cs-134 <2.12E+01 0.00E+00 2.12E+01 Cs-137 <2.18E+01 0.00E+00 2.18E+01 Be-7 9.44E+02 9.69E+01 1.06E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 130 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 257915 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE K-40 3.56E+03 2.51E+02 1.64E+02 Sample ID: 257916 Sample Dates: 5/14/2013 - 5/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.82E+01 0.00E+00 1.82E+01 Cs-134 <1.70E+01 0.00E+00 1.70E+01 Cs-137 <2.08E+01 0.00E+00 2.08E+01 Be-7 5.56E+02 9.57E+01 1.47E+02 K-40 2.64E+03 2.37E+02 2.07E+02 Sample ID: 259417 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.31E+01 0.00E+00 1.31E+01 Cs-134 <8.04E+00 0.00E+00 8.04E+00 Cs-137 <9.69E+00 0.00E+00 9.69E+00 Be-7 8.53E+02 5.13E+01 7.18E+01 K-40 2.89E+03 1.23E+02 9.42E+01 Sample ID: 259418 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <3.83E+01 0.00E+00 3.83E+01 Cs-134 <3.10E+01 0.00E+00 3.10E+01 Cs-137 <3.96E+01 0.00E+00 3.96E+01 Be-7 4.57E+02 1.41E+02 2.63E+02 K-40 4.48E+03 3.73E+02 3.52E+02 Sample ID: 259419 Sample Dates: 6/12/2013 - 6/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <2.10E+01 0.00E+00 2.10E+01 Cs-134 <1.82E+01 0.00E+00 1.82E+01 Cs-137 <1.77E+01 0.00E+00 1.77E+01 Be-7 1.21E+03 1.19E+02 1.55E+02 K-40 3.46E+03 2.65E+02 2.88E+02 Sample ID: 262840 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <3.41E+01 0.00E+00 3.41E+01 Cs-134 <3.36E+01 0.00E+00 3.36E+01 Cs-137 <3.60E+01 0.00E+00 3.60E+01 Be-7 2.43E+03 1.97E+02 2.74E+02 K-40 3.88E+03 3.72E+02 3.78E+02 Sample ID: 262841 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.70E+01 0.00E+00 1.70E+01 Cs-134 <1.70E+01 0.00E+00 1.70E+01 Cs-137 <1.67E+01 0.00E+00 1.67E+01 Be-7 9.26E+02 9.68E+01 1.64E+02 K-40 2.34E+03 2.23E+02 2.84E+02 Sample ID: 262842 Sample Dates: 7/15/2013 - 7/15/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <4.09E+01 0.00E+00 4.09E+01 Cs-134 <4.06E+01 0.00E+00 4.06E+01 Cs-137 <3.86E+01 0.00E+00 3.86E+01 Be-7 1.21E+03 2.16E+02 3.32E+02 K-40 3.15E+03 3.77E+02 4.03E+02 Sample ID: 265251 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <2.94E+01 0.00E+00 2.94E+01 Cs-134 <2.15E+01 0.00E+00 2.15E+01 Cs-137 <2.95E+01 0.00E+00 2.95E+01 Be-7 1.78E+03 1.62E+02 2.53E+02 K-40 3.33E+03 2.64E+02 2.21E+02 Sample ID: 265252 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.89E+01 0.00E+00 2.89E+01 Cs-134 <3.50E+01 0.00E+00 3.50E+01 Cs-137 <3.33E+01 0.00E+00 3.33E+01 Be-7 1.99E+03 1.90E+02 2.30E+02 K-40 2.61E+03 3.38E+02 4.48E+02 Sample ID: 265253 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.30E+01 0.00E+00 2.30E+01 Cs-134 <1.86E+01 0.00E+00 1.86E+01 Cs-137 <2.08E+01 0.00E+00 2.08E+01 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 131 of 132 Duke Energy Annual Report - Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Shearon Harris Radiological Environmental Monitoring Analysis Report - 2013 (Appendix E)

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 63 [ INDICATOR - SW @ 0.6 miles ] 63 Sample ID: 265253 Sample Dates: 8/12/2013 - 8/12/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM Be-7 6.36E+02 9.93E+01 1.76E+02 K-40 3.28E+03 2.53E+02 2.48E+02 Sample ID: 269935 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <4.17E+01 0.00E+00 4.17E+01 Cs-134 <2.49E+01 0.00E+00 2.49E+01 Cs-137 <2.92E+01 0.00E+00 2.92E+01 Be-7 1.34E+03 1.70E+02 2.90E+02 K-40 2.70E+03 3.55E+02 6.06E+02 Sample ID: 269936 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <1.87E+01 0.00E+00 1.87E+01 Cs-134 <2.10E+01 0.00E+00 2.10E+01 Cs-137 <2.32E+01 0.00E+00 2.32E+01 Be-7 1.04E+03 1.19E+02 1.19E+02 K-40 2.74E+03 2.55E+02 2.12E+02 Sample ID: 269937 Sample Dates: 9/16/2013 - 9/16/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <3.37E+01 0.00E+00 3.37E+01 Cs-134 <2.50E+01 0.00E+00 2.50E+01 Cs-137 <4.18E+01 0.00E+00 4.18E+01 Be-7 1.95E+03 2.22E+02 2.46E+02 K-40 2.23E+03 3.38E+02 3.72E+02 Sample ID: 272629 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: MAPLE I-131 <2.57E+01 0.00E+00 2.57E+01 Cs-134 <2.13E+01 0.00E+00 2.13E+01 Cs-137 <2.80E+01 0.00E+00 2.80E+01 Be-7 1.69E+03 1.61E+02 1.77E+02 K-40 1.27E+03 2.34E+02 2.25E+02 Sample ID: 272630 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: WAXMYRTLE I-131 <2.14E+01 0.00E+00 2.14E+01 Cs-134 <1.97E+01 0.00E+00 1.97E+01 Cs-137 <1.71E+01 0.00E+00 1.71E+01 Be-7 2.39E+03 1.52E+02 1.62E+02 K-40 2.79E+03 2.27E+02 1.97E+02 Sample ID: 272631 Sample Dates: 10/14/2013 - 10/14/2013 Nuclide Activity 1 Sigma Error LLD Subtype: SWEETGUM I-131 <2.32E+01 0.00E+00 2.32E+01 Cs-134 <2.79E+01 0.00E+00 2.79E+01 Cs-137 <2.78E+01 0.00E+00 2.78E+01 Be-7 1.63E+03 1.60E+02 1.90E+02 K-40 2.50E+03 3.15E+02 3.70E+02 Report Generated @ 4/14/2014 10:58:37 EnRad Laboratories Appendix E - Page 132 of 132 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 2013 AREOR There are no errata to be appended to the 2013 AREOR.

Appendix F - Page 2