RNP-RA/14-0049, Radiological Environmental Operating Report for 2013

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Radiological Environmental Operating Report for 2013
ML14142A030
Person / Time
Site: Robinson Duke Energy icon.png
Issue date: 05/13/2014
From: Glover R
Duke Energy Progress
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
RNP-RA/14-0049
Download: ML14142A030 (181)
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Text

j DU KE ENERGY, PROGRESS R. Michael Glove, H. B. Robinson Steam Electric Plant Unit 2 Dir.- Site Operations, Robinson Duke Energy Progress 3581 West Entrance Roao Hartsville, SC 29550 0:843 857 1704 F: 843 857 1319 Alike.Glover@duke-energy.orm Serial: RNP-RA/14-0049 T.S. 5.6.2 4AY 1 3 2014 United States Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261 / RENEWED LICENSE NO. DPR-23 RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2013 Ladies and Gentlemen:

In accordance with the H. B. Robinson Steam Electric Plant (HBRSEP), Unit No. 2, Technical Specifications, Section 5.6.2, "Annual Radiological Environmental Operating Report," enclosed is the Radiological Environmental Operating Report for the period January 1, 2013, through December 31, 2013.If you have any questions concerning this report, please contact W. Richard Hightower, Manager -Nuclear Regulatory Affairs, at (843) 857-1329.Sincerely, R. Michael Glover Director -Site Operations, Robinson RMG/mjp Enclosure c: V. M. McCree, NRC, Region II M. C. Barillas, NRC Project Manager, NRR (w/o Enclosure)

NRC Resident Inspector K. A. Collinsworth, DHEC United States Nuclear Regulatory Commission Enclosure to Serial: RNP-RA/14-0049 180 Pages (including cover page)H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261 / RENEWED LICENSE NO. DPR-23 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2013

~ENERGY.ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT DUKE ENERGY PROGRESS, INC.H. B. ROBINSON STEAM ELECTRIC PLANT Unit NO. 2 2013 TABLE OF CONTENTS 1.0 Executive Summary 1-I 2.0 Introduction 2.1 Site Description and Sample Locations 2.2 Scope and Requirements of the REMP 2.3 Statistical and Calculational Methodology

.2.3.1 Estimation of the Mean Value .2.3.2 Lower Limit of Detection and Minimum Detectable Activity 2.3.3 Trend Identification.

3.0 Interpretation of Results .3.1 Airborne Radioiodine and Particulates 3.2 Surface Water 3.3 Ground Water .3.4 Milk/Broadleaf Vegetation.

3.5 Food Products 3.6 Aquatic Vegetation..

3.7 Fish ....3.8 Shoreline Sediment .3.9 Bottom Sediment .3.10 Asiatic Clams ..3.11 Direct Gamma Radiation 3.11.1 Environmental TLD 3.12 Land Use Census 3.12.1 Purpose of Land Use Census.3.12.2 Methodology.

3.12.3 Land Use Census Results 4.0 Quality Assurance 4.1 Sample Collection 4.2 Sample Analysis 4.3 Dosimetry Analysis .4.4 Laboratory Equipment Quality Assurance 4.4.1 Daily Quality Control 4.4.2 Calibration Verification 4.4.3 Batch Processing 4.5 Duke Energy Intercomparison Program 4.6 Eckert & Ziegler Analytics Cross Check Program 4.7 ERA Proficiency Testing .4.8 State of South Carolina Intercomparison Program 2-1 2-1 2-2 2-3 2-3 2-3 2-4 3-1 3-2 3-8 3-9 3-9 3-10 3-10 3-10 3-11 3-11 3-11 3-11 3-11 3-13 3-13 3-13 3-14 4-1 4-1 4-1 4-1 4-1 4-1 4-1 4-1 4-2 4-2 4-2 4-2 Appendices Appendix A: Environmental Sampling and Analysis Procedures

1. Change of Sampling Procedures II. Description of Analysis Procedures Ill. Change of Analysis Procedures

.IV. Sampling and Analysis Procedures A.I Airborne Particulate and Radioiodine A.2 Surface Water A.3 Ground Water.A.4 Broadleaf Vegetation A.5 Food Products.A.6 Aquatic Vegetation.

A.7 Fish A.8 Shoreline Sediment .A.9 Bottom Sediment A.10 Direct Gamma Radiation TLD)A.I I Annual Land Use Census Appendix B: Radiological Environmental Monitoring Program -Summary of Results 2013.Radiological Environmental Monitoring Program Data Summary.Footnotes to Appendix B..A-]A-2 A-2 A-3 A-3 A-3 A-4 A-4 A-5 A-5 A-6 A-6 A-6 A-7 A-7 A-7 B-i B-2 B-5 Appendix C: Sampling Deviations and Unavailable Analyses C-I Air Cartridge and Air Particulates.

C-2 Broadleaf Vegetation C-2 TLDs C-3 Appendix D: Analytical Deviations

.D-1 Ground Water D-2 Appendix E: Radiological Environmental Monitoring Program Results E-1 Appendix F: Errata to Previous Reports F-I Errata to the 2013 AREOR .F-2 LIST OF FIGURES 2.1-1 2.1-2 3.1-1 3.1-2 3.1-3 3.1-4 3.1-5 3.1-6 3.1-7 3.1-8 3.1-9 3.2-1 Radiological Environmental Sampling Locations (Near Plant)Radiological Environmental Sampling Locations (Distant from Plant).Air Particulate for Gross Beta -Activity (Location 1 and 2)Air Particulate for Gross Beta -Activity (Location I and 3)Air Particulate for Gross Beta -Activity (Location I and 4)Air Particulate for Gross Beta -Activity (Location I and 5)Air Particulate for Gross Beta -Activity (Location I and 6)Air Particulate for Gross Beta -Activity (Location I and 7)Air Particulate for Gross Beta -Activity (Location I and 55)Air Particulate for Gross Beta -Activity (Location I and 60)Air Particulate for Gross Beta -Activity (Location I and 61)HBRSEP 2013 Surface Water Tritium 2-5 2-6 3-3 3-3 3-4 3-4 3-5 3-5 3-6 3-6 3-7 3-8 3-12 3.1 1-1 HBRSEP 2013 TLD Averages for Inner and Outer Ring Locations.

LIST OF TABLES 2.1-A Radiological Monitoring Program Sampling Locations 2.1-B Radiological Monitoring Program Sampling Locations (TLD Sites)2-7 2-8 11 LIST OF TABLES CONT.2.2-A Reporting Levels for Radioactivity Concentrations in Environmental Samples 2.2-B REMP Analysis Frequency

.2.2-C Lower Limits of Detection (LLD)(a)3.0-A HBRSEP Potential Dose Pathway 3.12.3 H1BRSEP Land Use Census Comparison (2012 -2013).4.0-A Duke Energy Interlaboratory Comparison Program 4.0-B Eckert & Ziegler Analytics Cross Check Program -EnRad Lab..4.0-C Environmental Resource Associates (ERA) Proficiency Testing 4.0-D Eckert & Ziegler Analytics Cross Check Program -HEEC Lab LIST OF ACRONYMS USED IN THIS TEXT (in alphabetical order)2-9 2-9 2-10 3-2 3-15 4-4 4-5 4-7 4-8 A Annually AR Air Radioiodine/

Air Cartridge AP Air Particulate AV Aquatic Vegetation BLV Broadleaf Vegetation C Control CR Condition Report -Corrective Action Program DEHNR Department of Environmental Health and Natural Resources ERA Environmental Resource Associates EZA Eckert & Ziegler Analytics Fl Fish FP Food Product GPS Global Positioning System GW Ground Water I Indicator IR Inner Ring -TLDs ISMSI Independent Spent Fuel Storage Installation HBRSEP or RNP H. B. Robinson Steam Electric Plant, Unit No. 2 HEEC Harris Energy and Environmental Center LLD Lower Limit of Detection M Monthly MDA Minimum Detectable Activity mrem Millirem NIST National Institute of Standards and Technology NRC Nuclear Regulatory Commission ODCM Off-Site Dose Calculation Manual OR Outer Ring -TLDs pCi/kg picocurie per kilogram pCi/I picocurie per liter pCi/m 3 picocurie per cubic meter PIP Problem Investigation Program Q Quarterly REMP Radiological Environmental Monitoring Program RNP or HBRSEP H. B. Robinson Steam Electric Plant, Unit No. 2 SA Semiannually SB Sediment -Bottom SS Sediment-Shoreline SI Special Interest -TLDs SW Surface Water TECH SPECs Technical Specifications TLD Thermoluminescent Dosimeter pCi/ml microcurie per milliliter W Weekly Ini 1.0 EXECUTIVE

SUMMARY

The H. B. Robinson Steam Electric Plant, Unit No. 2 (HBRSEP) is operated by Duke Energy Progress, Inc. under a license granted by the Nuclear Regulatory Commission (NRC).Provisions of the Nuclear Regulatory Commission's Regulatory Guide 4.8, HBRSEP Technical Specifications, and the HBRSEP Off-Site Dose Calculation Manual (ODCM)establish the requirements of the Radiological Environmental Monitoring Program (REMP).This report describes the HBRSEP 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 attributable to plant operations were within limits as specified in the HBRSEP ODCM.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 fallout from the 2011 Japan earthquake and tsunami which triggered the Fukushima Dai-ichi nuclear power plant incident.Milk monitoring has not been conducted due to the unavailability of milk samples in the area since July 17, 1998, when the dairy ceased operation.

Milk sampling will resume if a new sample location is identified.

Broadleaf sampling is conducted, since no milk animals are located within five miles of the plant in any sector.)0 Terrestrial vegetation includes broadleaf vegetation and food products.

Results indicate detectable concentrations of Cs-137 in both the indicator and control locations for broadleaf vegetation with comparable results. The Cesium-137 concentrations were also comparable to previous years. No other gamma by-product/plant-related activity was detected in any samples, except for K-40 and other naturally occurring gamma activity.

Sampling of miscellaneous food products (non-leafy) in the vicinity of the site is conducted when leafy vegetables are not being grown. The concentrations identified were comparable to previous years' data.Section I -Page I

" Aquatic organism surveillances include fish and aquatic vegetation.

Fish samples revealed detectable concentrations of Cs-137 activity in both indicator and control locations.

No other gamma by-product/plant-related activity was detected in any fish sample, except for K-40 and other naturally occurring gamma activity.

The concentrations observed are consistent with previous years' data. The aquatic vegetation is used for long term trending and there is no dose contribution to the public.Surface water results indicate no by-product/plant-related gamma activity in 2013.Surface water (non-drinking water) results indicate that the surface water from Lake Robinson shows 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).

The tritium concentrations observed are not irreversible to the environment due to plant operations (See Figure 3.2-1) and are consistent with previous years' data. 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.> Sediment surveillance includes both shoreline and bottom sediment.

The shoreline sediment gamma analyses identified naturally occurring gamma activity and no gamma by-product/plant-related activity was detected in any shoreline sediment sample collected in 2013. These samples are used to calculate groundplane dose to the public. During 2013, bottom sediment results indicated the presence of Cs-137 at concentrations consistent with previous years. Bottom sediment is used for long term trending and there is no public dose associated with these samples.> External radiation dose showed no measurable change from pre-operational data.The continued operation of HBRSEP has not significantly contributed radiation or the presence of radioactivity in the environmental media monitored.

The measured concentrations of radioactivity are well within applicable regulatory limits.Section I -Page 2

2.0 INTRODUCTION

2.1 SITE DESCRIPTION AND SAMPLE LOCATIONS Duke Energy's H. B. Robinson Steam Electric Plant, Unit No. 2 (HBRSEP) consists of a pressurized water reactor with a design rating of 800 MWe (Megawatts electric).

The site is shared with a pulverized coal unit (Unit No.1), which established commercial operation in 1960. Unit 1 is now offline and is scheduled to be decommissioned.

Commercial production was initiated by Unit No. 2 on March 7, 1971. The HBRSEP is located in Darlington County, South Carolina.

The site is along state route 151 approximately five (5) miles northwest of Hartsville, South Carolina.

The site is also approximately twenty five (25) miles northwest of Florence, South Carolina.Lake Robinson is adjacent to the plant and is the source of cooling water. The lake was impounded during the construction of Robinson Unit No.1 (coal fired). The lake is fed by Black Creek and is approximately 2,250 acres in area. The plant intake is at the southern portion of the lake near the dam. The discharge is to a canal which conveys the cooling water to a point 4.2 miles north of the plant, where it returns to Lake Robinson.The local economy supports primarily industrial and agricultural contributions.

Fishing, boating, and swimming are popular activities on Lake Robinson and other nearby lakes. These activities contribute to the radiological pathways by consumption of fish and immersion related to swimming and boating. Consumption of milk and food products contributes to the ingestion pathway. No milk animals are located within five miles of the plant in any sector at this time, so broadleaf sampling is conducted to simulate the milk ingestion pathway.Although the contribution to background radiation is small, Duke Energy Progress, Inc. has established this program to measure the exposure pathways to man. An exposure pathway describes the source of the radiological exposure.

The primary forms of potential 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, pre-operational monitoring, and results of the land use surveys. A number of locations are selected as controls.

Control stations are selected because they are very unlikely to be affected by the operation of the plant.Figures 2.1-1 and 2.1-2 are maps depicting the HBRSEP Thermoluminescent Dosimeter (TLD)monitoring locations and the sampling locations.

The location numbers shown on these maps correspond to those listed in Tables 2. 1-A and 2. 1-B.Section 2 -Page I 2.2 SCOPE AND REQUIREMENTS OF THE REMP The Radiological Environmental Monitoring Program (REMP) was established in 1973 at HBRSEP. Radiation and radioactivity in various environmental media have been monitored for 40 years. Monitoring is also provided for control locations, which would not be impacted by operations of the HBRSEP. Using these control locations and data collected prior to operation allows comparison of data collected at locations near the HBRSEP 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. The operational program provides surveillance and backup support of detailed effluent monitoring which is necessary to evaluate the significance, if any, of the contributions to the existing environmental radioactivity levels that result from station operation.

This monitoring program is based on NRC guidance as reflected in the HBRSEP Off-Site Dose Calculation Manual (ODCM), with regards to sample media, sampling locations, sampling frequency and analytical sensitivity requirements.

Indicator and control locations were established for comparison purposes to distinguish radioactivity of plant origin from natural or other "man-made" environmental radioactivity.

The environmental monitoring program also verifies projected and anticipated radionuclide concentrations in the environment and related exposures from releases of radionuclides from I-BRSEP. This program satisfies the requirements of Section IV.B.2 of Appendix I to 10 CFR 50 and provides surveillance of all appropriate critical exposure pathways to man and protects vital interests of the company, public and state and federal agencies concerned with the environment.

Reporting levels for activity found in environmental samples are listed in Table 2.2-A. Table 2.2-B lists the REMP analysis and frequency schedule.The Annual Land Use Census, required by the HBRSEP Off-Site 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 HBRSEP 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 (reference 6.8): N Ix, X- /=1 N Where: x = estimate of the mean, i = individual sample, N = total number of samples with a net activity (or concentration), Xi = 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.Section 2 -Page 3 MDA -The MDA is the net counting rate (sample after subtraction of background) that must be surpassed before a sample is considered to contain a scientifically measurable amount of a radioactive material exceeding background amounts. The MDA is calculated using a sample background and may be thought of as an "actual" LLD for a particular sample measurement.

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

Substantial increases or decreases in the amount of a particular radionuclide's release from the nuclear plant will greatly affect the resulting environmental levels; therefore, a knowledge of the release of a radionuclide from the nuclear plant is necessary to completely interpret the trends, or lack of trends, determined from the environmental data. Factors that may affect environmental levels of radionuclides include prevailing weather conditions (periods of drought, solar cycles or heavier than normal precipitation), construction in or around either the nuclear plant or the sampling location, and addition or deletion of other sources of radioactive materials (such as the 1986 Chernobyl accident and the 2011 Japan earthquake and tsunami which triggered the Fukushima Dai-ichi nuclear power plant incident).

Some of these factors may be obvious while others are sometimes unknown. Therefore, how trends are identified will include some judgment by plant personnel.

Section 2 -Page 4 Figure 2.1-1 Radiological Environmental Sampling Locations (Near Plant)Sample Locations not shown include: 1,7 -18, 20 -39, 41, 45 -47, 49, 52, 54, 57, 58, 66, 71, 76, and 79 Section 2 -Page 5 Figure 2.1-2 Radiological Environmental Sampling Locations (Distant from Plant)Sample Locations not shown include: 1,2, 6, 7, 26, 41,42, 47 (varies), 50 -52, 54 -58 (varies), 60 -62, 73, 75 -79, and 81 -82.Section 2 -Page 6 TABLE 2.1-A H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 (HBRSEP)RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS Site Type' Location Description*

AR* & SW* SS* SB* AV- t) Fish BLV(b)* GW-# AP" (Fl)" I C 24.4 miles ESE Florence, S.C. W/Q 2 1 0.2 miles S Information Center W/Q 3 1 0.5 miles N Microwave Tower W/Q 4 1 0.4 miles ESE Spillway W/Q 5 1 0.9 miles ENE East shore of lake near Johnson's W/Q Landing 6 1 0.2 miles SSW Information Center W/Q 7 1 6.4 miles ESE CP&L facility on RR Avenue, W/Q Hartsville 40 1 0.6 miles ESE Black Creek at Old Camden Road (S- M 16-23) -Lake Robinson 41 C 8.0 miles N Black Creek at US Hwy I M 41 C 7.2 miles NNW Black Creek (upstream)

A A 42 1 Unit I Deep Wells 44 I 1.6 miles NNE East shore of lake, Shady Rest Club SA 45 I Site varies within Lake Robinson A A SA 46 I Site varies within Prestwood Lake A A SA 47 C Control station, Any lake not influenced by plant SA discharge 49 C 10.0 miles W or greater than 5 miles from plant AW 50 1 SSE Close to Site Boundary M____51 1 SSW Close to Site Boundary Mt__52 C 10 miles W near Bethune _____54 1 10.1 miles E Auburndale Plantation (if irrigating from A-- -Black Creek)55 1 0.2 miles SSE South of West Settling Pond W/Q 57 1 Ash Pond M 57 1 Ash Pond Shore SA 58 1 Site varies from plant A 60 1 0.2 miles SE Robinson Picnic Area W/Q 61 1 0.3 miles WSW West Parking lot near RR tracks W/Q 62 I SE Close to Site Boundary MW_64 1 0.6 miles SE Artesian Well Q 66 1 Black Creek btwn Prestwood Lake discharge

& M A A upstream of Sonoco Spray Farm (downstream) 67 1 S Close to Site Boundary Ilb)68 1 Well A Btwn Unit I Switchyard

& breakroom Q 69 1 Well B Behind the Training Building Q 70 1 Well C Btwn O&M Building & Fab Shop Q 71 1 0.87 miles NNW (MW-03A) Btwn Ash Pond & RR Q tracks 72 1 0.10 miles E (MW-06) 20 ft from FP/FH 7 fire Q hydrant & Unit I North Deep Well Pump 73 1 0.11 miles ENE (MW-13) Btwn Discharge Canal & Q Unit I Stand Alone Fuel Oil Tanks 75 I 0.05 miles NE (PSW-02) By Unit 1 boundary Fence to Unit 2 across paved rd. from Hydrogen Gas Tanks 76 I 0.49 miles N (PSW-03) NE comer of MET Tower Q Station 77 I 0.25 miles SSE (TS-01B) By entrance road to Unit I -78 1 0. 17 miles SSE (TS-02C) NE corner by East Settling Q Pond influent by fence 79 1 1.0 miles N (TS-07C) S comer by cove & Discharge Q Canal 81 1 0. 19 miles SSE (TS-17B) W ofWest Settling Pond Q across paved road 82 I 03 miles SSE (PDW-01) By entrance road to Unit I Q (a) During Harvest/Growing Season (b) When Available* Refer to List of Acronyms Used in this Text in Table of Contents*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 7 TABLE 2.1-B H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 (HBRSEP)RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS (TLD SITES)Table 2. 1-B Codes C ControI IR Inner Ring OR Outer Ring SI Seecial Interest Site Measure Location*

Distance Sector Site Measure Location*

Distance Sector# Type (miles)* # Type (miles)'I C Florence, SC 24.4 ESE 23 IR New Market Road (#S.16.39) 1.0 ESE 2 IR Information Centerl'2 0.2 S 24 OR Sowell Road (#S-13-711) 4.6 NW 3 IR Microwave Tower 0.5 N 25 OR Lake Robinson Road (#S 4.0 NNW 346)4 IR Spillway 0.4 ESE 26 OR Lake Robinson Road (#S 5.0 N 346)5 IR East shore of lake near 0.9 ENE 27 OR Prospect Church Road (#S 5.4 NNE Johnson's Landing 763)6 IR Information Center'2 0.2 SSW 28 OR New Market Road (#S-13-39) 4.3 NE 7 OR CP&L Facility on RR 6A4 ESE 29 OR Ruby Road (#S-16-20) 4.0 ENE Avenue, Hartsville 8 IR Transmission right-of-way 0.8 SSE 30 OR Ruby Road (#S-16-20) 4.4 E 9 IR Transmission right-of-way 1.0 S 31 OR Lakeshore Drive 4.6 ESE 10 IR Clyde Church of God 1.0 WSW 32 OR Transmission right-of-way 4.0 SE II IR Old Camden Road 1.0 SW 33 OR Bay Road (#s-16&493) 4.5 SSE 12 IR Off of Old Camden Road 1.2 SSW 34 OR Kellybell Road (#S-16-772) 4.7 S 13 IR Comer of Saluda and 0.7 W 35 OR Kelly Bridge Road (#s-31-51) 4.5 SSW Sandpit Roads 14 IR First Baptist Church of 0.8 WNW 36 OR Kingston Drive 5.0 SW Pine Ridge 15 IR Transmission right-of-way 0.7 NW 37 OR Pine Cone Road 5.0 WSW 16 IR South side of Darlington 1.0 NNW 38 OR Union Church Road 4.9 W Co. I.C. Turbine Plant 17 IR Darlington Co. Plant 1,2 N 39 OR King's Pond Road 5.1 WNW emergency fire pump 18 IR Near Old Black Creek RR 0.7 SE 55 IR South of the West Settling 0.2 SSE trestle Pond 19 IR Old Camden Road (#S-16-23) 1.0 E 56 IR North of the center of the 0.4 NNW 7P-ISFSI"'

2 20 IR New Market Road (#S-16-39) 1.0 ENE 61 IR West Parking lot near RR 0.3 WSW tracks 2 21 IR New Market Road (#S-16-39) 1.4 NE 65 IR Northwest of the 24P-ISFSI 2 0.3 WNW 22 IR Shady Rest entrance off of 1.7 NNE Cloverdale Drive is -= a _______________

I Required for monitoring of the 7P-ISFSI 2 Required for monitoring of the 24P-ISFSI GPS data reflect approximate accuracy to within 2-5 meters. GPS field measurements were taken as close as possible to the item ofinterest.

Section 2 -Page 8 TABLE 2.2-A REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES Analysis Water Airborne Fish Milk Food Products (pCi/liter) (pCi/m 3) (pCi/kg-wet) (pCi/liter) (pCi/kg-wet)

H -3 20 ,000(a) ............

..M n-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 ----Z r-N b-95 400 ............

..1-131 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.represents no specified limits TABLE 2.2-B REMP ANALYSIS FREQUENCY Sample Analysis Gamma Tritium Low Gross TLD Medium Schedule Isotopic Level Beta 1-131 Air Radioiodine Weekly X Air Particulate Weekly X Quarterly X Direct Radiation Quarterly X Surface Water Monthly Composite X X Ground Water Quarterly X X Ground Water (#68) Quarterly X X X Ground Water (#82) Quarterly X X X X Bottom Sediment Annually X Shoreline Sediment Semiannually X Fish Semiannually X Aquatic Vegetation Annually, X Broadleaf Vegetation Monthly t, X Food Products Annually(b)

X (a) When Available (b) At harvest Section 2 -Page 9 TABLE 2.2-C LOWER LIMITS OF DETECTION (LLD)(a)Analysis Water Airborne Fish Milk Food Products Sediment (pCi/liter) (pCi/m 3) (pCi/kg-wet) (pCi/liter) (pCi/kg-wet) (pCi/kg-dry)

Gross Beta ---- 0.01 ..........

.H -3 200O c_ ---- ---- ----........

M n-54 15 ---- 130 ............

Fe-59 30 ---- 260 ---- --.......Co-58, 60 15 ---- 130 ---- --.......Zn-65 30 .... 260 .........

Zr-N b-95tb) 15 ........ ----.......

1-131 1(d) 0.07 ---- 1 60 Cs-134 15 0.05 130 15 60 150 Cs-137 18 0.06 150 18 80 180 Ba-La- 140lb) 15 ........ 15 ........(a) The LLD is defined in Section 232.(b) The specified LLD applies to the daughter nuclide of an equilibrium mixture of the parent and daughter nuclides.(c) If no drinking water pathway exists, a value of 3000 pCi/liter may be used.(d) If no drinking water pathway exists, a value of 15 pCi/liter may be used."---- represents no specified limits Section 2 -Page 10 3.0 INTERPRETATION OF RESULTS The following section depicts and explains the review of the REMP results conducted during 2013 for the H. B. Robinson Steam Electric Plant, Unit No. 2 (HBRSEP) and fulfills the reporting requirements of Technical Specifications and HBRSEP ODCM. Review of all 2013 REMP analysis results was performed to identify changes in environmental levels as a result of HBRSEP 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 HBRSEP ODCM. The radionuclides include: H-3, Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr-95, Nb-95, 1-131, Cs-134, Cs-137, Ba-140 and La-140. HBRSEP 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 HBRSEP liquid effluents which contained the radionuclides.

The purpose of the REMP is to measure accumulation of radioactivity in the environment, to determine whether this radioactivity is the result of the operation of the HBRSEP, Unit No. 2, and to assess the potential dose to the off-site population based on the cumulative measurements of radioactivity of plant origin. Approximately 1,458 samples were collected from indicator and control locations and 1,578 analyses and measurements were made during 2013. Detectable radioactivity resulting from plant operation was found in 25 out of 36 indicator samples of surface water (Appendix B). Only the tritium activity measured in the surface water of Lake Robinson and in fish samples constituted a source of public exposure.

The highest concentration of any plant related radionuclide releases to the environment was tritium in Lake Robinson at an average concentration of 3.136E+3 pCi/Liter.

Using the methodology of Regulatory Guide 1.109 "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I, Revision 1, dated October 1977," via fish consumption, is listed below. The maximum possible exposure to an individual from the evaporation of tritium in Lake Robinson using 2013 meteorology is 0.192 mrem/yr. to a child. 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.Age Group 2013 Dose (mrem)Adult 0.007 Teenager 0.005 Child 0.004 A change occurred in 2013 (end of March, first of April) 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 Energy's central laboratory) was subsequently decommissioned and all laboratory services were consolidated at the EnRad Laboratory in Huntersville, N.C.Section 3 -Page 1 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 HBRSEP and surrounding areas that were attributable to plant operations.

The radiological environmental data for 2013 indicates that radioactivity concentrations were not higher than expected and all positively identified measurements attributable to HBRSEP operations in 2013 were within limits as specified in the HBRSEP ODCM, thus presenting no significant impact on the environment or public health and safety. A statistical summary of all the HBRSEP data for 2013 has been compiled and summarized in Appendix B along with any plant-derived activity detected within the scope of the REMP.Table 3.0-A HBRSEP Potential Dose Pathway Environmental Radionuclide Location w/Highest Activity and Occurrence Maximum Individual Mdedia Annual Mean Dose (mrem/yr)Surface Water H-3 (tritium)

Lake Robinson (SW-40) 3.136 pCi/L (12/12) 0.007 fillirem/yr-Adult____________

___________

_______________

____________________(from fish)0.192 millirem/yr

-child Surface Water H-3 (tritium)

Lake Robinson (SW-40) 3,136 pCi/L (12/12) (Evaporation from Lake Robinson using HBRSEP 2013 Meteorology Data)**This is information supplied by Murray and Trettel. Inc. in their report "Impact of Tritium Release from Lake Robinson at the Robinson Nuclear Plant for 2013." 3.1 AIRBORNE RADIOIODINE AND PARTICULATES All 520 air cartridge/radioiodine (AC) samples from indicator and control stations had 1-131 concentrations less than the ODCM LLD of 7.OOE-2 pCi/m3. There are nine indicator sites for a total of 468 indicator samples and one control site for a total of 52 control samples during the 2013 collection year. The air samplers operated for a total of 99.63% availability for the 2013 year.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 nine indicator locations and the control location.

The 467 indicator samples had an average concentration of 1.82E-2 pCi/m 3.Similar gross beta activities were observed at the control location in Florence, which had an average concentration of 1.74E-2 pCi/mi 3 in 52 control samples. Figures 3.1-1 through 3.1-9 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. The 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. HBRSEP 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 HUSEP from ;/31/2012 To 12/3/201 Air Particulate for Gross Beta -Activity (pCi/cuble meter)-4-Contro Locaton 1(24.4 Miles ESE -Florence)- Indicator Location 2 (02 MilesS)4,ODE-02 3 SOE-02 3 OOE-02 2.SOE-02 I00E-02 1..t-.2 1.OOE-02 SJDDE-03 I'Jan-13 Apr-13 l.1-IS Date Oct-13 Figure 3.1-2 HBRSEP from 12/31/2012 To 12/30201 Air Particulat, for Gross Beta -Actvity meter)Controi Locaion 1(24.4 Mils ESE -Florence)

--- indicator Location 5( I 5 MileslN()430OE-02 3.O0E-02 --I 2.50E.02 -------2-.0E-02 I.S0E-02 lOOE+-O Jan-13 Apr-13 Jut-13 Od-13 Date 3 Section 3 -Page 3 Figure 3.1-3 HIRSEP from 12/31/2012 To 12/30/2013 Air Particulate for Gross Beta -Actklty(pa/cublsc meter)-41-Control Loation 1(24.4 Miles ESE -Floencei --- kndaor Location 4 (414 Miles ESE)4.0E-02 3ý50E-02 3.SOE-02 I 2.SOE-02 2.lOE-02 Jan-13 Apr-13 IlulS3 Cd-13 Date Figure 3.1-4 HBRSEP from 12/31/2012 To 12/30/2013 Air Particulate for Gross Beta -Activity meter)-4-- Cwt ml Lomation 1 (24.4 Miles ESE -Florence 1 Wndicator Uxat o 5 (0.9 Miles ENEI 4 OCE-02 3.S0E-02 SlO-E-02 2.50E-02 1-50t-O2 5-aGE-OS Jan-IS Apr-13 JuI-1 Cd-IS Date Section 3 -Page 4 Figure 3.1-5 HORSEP from 12/31/2012 To 12/80/2013 Air Particuhis, for Gross Beta -Activtly(pO/cusiei nwt~r) Control Locaton 1(24.4 Mile ESE -Florence -*-Inkdic~atr Location 4i(02 Miles SSW)4.OOE-02 3.50E-02 __ ___3001E-02 ________________

2001E-02 1501E-02 5.001-03 --- ----- --- --____ -- --------- -------_____0.004+00 Ja-3Apr-13 Jud-13 d 3 Date Figure 3.1-6 HBRSEP "rm 1231/2012 To 12/3/201 Air Particubirst for Gross Beta -Activity (pa/subic neter)--Control Location 1 (24.4 Mile ESE -flo-ce( -UW---5dicat Location 7 (fi4 Mdc, 1511 400E-02 -3.50E-02 3.00E-02 50E-02 2.004-02-1.00-E02 S.OOE-03 +OOOE+00 -jan-13 Jul-15 ad-1I Dite Section 3 -Page 5 Figure 3.1-7 HBRSEP from 12/31/2012 To 12/30/2013 Air Particulub for Gross Bets -Actity (pll/eubi meter)SContml Locvion 1 (24.4 Miles ESE -Florence) -U Indicator Location 55 (0. 2 M lies SSE)4. OE-02 S.SOE-02 5.00t-m2_

_-- I___2.50E-02 2.OOE-02 1f 504-02 IDOE-02 0,00E+00 Jan-13 Apr-IS Ju-13 0d-13 Date 1 Figure 3.1-8 HBRSUP from 12/81/2012 To 12130/2018 Air Particulut for Gross Beta -Activity (pO/@ulic meter)-- Locmioan 1(24.4 Miles ESE -Florence) - Indkilor ocation G0 (0.2 M1ps SE)4.00L=-02 4 504E02 IS 00-02 2304O-02 2.00-02 1.50402 100E-02 5.00 -03 Api,13 JoI,-13 Oct-is Wae Section 3 -Page 6 Figure 3.1-9 HURSEP from 12/F31/2012 To 12/30/2013 Air Pariulaefr Gross Gt s A ctlvftV(p/C~jublc metor)--*-CwtmItocaH0, 1 (24.4 Miles ESE -For~oce( -A- 6hdicator Loat., 61(0 3M~s WSW)4.OOE-02 3.50E-02 -______________

3,OOE-02 2.50E-02 --- -- ------- ---2 OOE-02 1.00E-02 5.00E-03 _______________

a, Apr-13 JUd13 00t-13 Date Section 3 -Page 7 3.2 SURFACE WATER Surface water (SW) composite samples are sampled monthly and analyzed for gamma emitting radionuclides and for tritium radioactivity.

The analyses indicated that no detectable concentrations of gamma -emitting radionuclides relating to plant effluents appeared in any of the indicator and control samples. All concentrations of natural occurring gamma-emitters were less than their respective LLDs (see Table 2.2-C). None of the control samples indicated the presence of tritium; however, 25 out of 36 indicator samples did indicate the presence of tritium in 2013. The average annual tritium activity was 2.66E+3 pCi/L, with the results ranging from 3.67E+2 pCi/L to 7.48E+3 pCi/L. The surface water indicator location with the highest tritium mean in 2013 was the Lake Robinson surface water (SW-40 -Black Creek at Old Camden Rd.)with a mean of 3.14E+3 pCi/L, and results ranging from 7.30E+2 pCi/L to 7.48E+3 pCi/L;which is attributed to plant operation.

Lake Robinson's tritium activity is cyclic and follows HBRSEP's fuel cycle. Figure 3.2-1 displays the tritium activity throughout 2013 for all surface water samples. These surface waters do not supply drinking water at any downstream location and are not typically used for irrigation.

Therefore, radiological dose via this pathway (surface water) is limited to the consumption of fish (0.007 mrem/yr.)

and evaporation of tritium (0.192 mrem/yr. using RNP 2013 Meteorology Data) from Lake Robinson and its subsequent inhalation and ingestion from vegetable gardens and meat producing animals. Using the methodology of Regulatory Guide 1.109, a dose of 0.199 millirem/year to the maximum exposed individual could be assigned to this pathway.Figure 3.2-1 HBRSEP 2013 Surface Water Tritium-- Control Locaion 41(80. Miles N -Black Creek -L US 1)-0-- Indicator Lmatn 40(0.6kMle E -RaCk Creek at Old Camden Rd )-- Indkitor Locatin 57 (Adspond)SIdicator Locaion 66(Downst ream -Black Creek bettvetn Pestwood Lake DOlokarge

& Upstream of Sonoco Spray Farm)100D , 9000 7000I/./CL4000 3000 20(0 4 0 "1- J -------ft-- ------------

ft-- -- --3 ---------- - .20 1/2112013 3/22/2ttlS 5/21/2D13 7/21/2013 9/21/2013 11/21/201 a 13 Mae Section 3 -Page 8 3.3 GROUND WATER Ground water (GW) samples are collected and analyzed quarterly for gamma emitters and tritium. Some of the ground water samples are also analyzed for low-level radioiodine and for gross beta. No by-product/plant-related gamma activity associated with plant operations was detected in the sixty (60) indicator samples of ground water collected in 2013. Some gamma LLDs were not met, for third quarter 2013 ground water samples, due to analysis counting constraints which stemmed from lengthy hold times on the samples (see Appendix D). The measured concentrations of the gamma analyses indicated concentrations below their required LLD as specified in the HBRSEP ODCM in Table 4.1-3 titled "Lower Limit of Detection (LLD)" for the year 2013 and Table 2.2-C of this report.The ground water samples had detectable concentrations of tritium activity in twenty-five (25)out of sixty (60) samples, for an average concentration of 5.85E+2 pCi/L; with a range of 1.65E+2 pCi/L to 1.69E+3 pCi/L. The measured ground water tritium concentrations were below the required HBRSEP ODCM Table 4.1-3 LLDs for environmental samples and Table 2.2-C. The tritium limits are 2000 picocuries per Liter (pCi/L) for a drinking water pathway and 3000 pCi/L if no drinking water pathway exists. HBRSEP administratively established a ground water tritium analysis LLD of approximately 250 pCi/L, which is well below the requirements specified in the HBRSEP ODCM. These tritium results are also well below the EPA reportable drinking water limit (20,000 pCi/Liter) and the non-drinking water limit (30,000 pCi/Liter).

During 2013, eight (8) ground water indicator samples were analyzed for 1-131 to the HBRSEP ODCM drinking water limit (<1 pCi/L). No detectable concentrations of 1-131 activity were detected in the eight samples; however, two of the eight samples, from third quarter 2013, did not meet the required HBRSEP ODCM LLD for drinking water (see Appendix D). Also during 2013, four (4) GW indicator samples were analyzed for gross beta activity, with activity present in all four samples, for an average concentration of 1.81 E+0 pCi/L, with a range of 1.29E+0 pCi/L to 3.04E+0 pCi/L. Refer to Appendix C or Appendix D for deviations and unavailable samples in the 2013 collection year.3.4 MILK / BROADLEAF VEGETATION Milk monitoring has not been conducted due to the unavailability of milk samples in the area since July 17, 1998, when the dairy ceased operation.

Milk sampling will resume if a new sample location is identified.

Broadleaf sampling is conducted since no milk animals are located within a radius of approximately five miles of the plant in any sector and is used to calculate dose to an individual via the vegetation-milk-man pathway.Broadleaf vegetation sampling is accomplished by collecting cherry, sassafras, and wax myrtle leaves in 2013. Three species of samples, when available, are collected monthly at five locations (one control and four indicator locations at the site boundary selected using historical meteorology with the highest calculated annual average ground level deposition).

Broadleaf sampling is conducted since no milk animals are located within a radius of approximately five Section 3 -Page 9 miles of the plant and is used to simulate dose to an individual via the milk pathway for compliance purposes.During 2013, 27 of 60 samples taken from the indicator sites demonstrated detectable concentrations of Cs-137 for an average value of 4.81E+l pCi/kg (wet). The control samples had detectable concentrations of Cs-137 in 8 of 15 samples with a mean concentration of 5.31E+1 pCi/kg (wet). Upon comparing these results, it is concluded that the indicator values reflect fallout Cs-137 contamination.

Past sampling experience further supports this interpretation..

Refer to Appendix C and Appendix D for deviations and unavailable samples in the 2013 collection year.3.5 FOOD PRODUCTS During 2013, one food product (FP) sample was collected from the control location (FP-49) and from each of the indicator locations (FP-54 and FP-58). Collards were collected from the control location (FP-49) and one indicator location (FP-58), while wheat was collected from indicator location FP-54 at Auburndale Plantation due to this area being irrigated by water in which liquid plant effluents have been discharged.

No gamma activity associated with plant operation was detected in any control or indicator samples for the 2013 collection period.3.6 AQUATIC VEGETATION The aquatic vegetation samples are considered to be sensitive environmental indicators used as long term trending and do not constitute a dose pathway. In 2013, there were three aquatic vegetation indicator samples and one aquatic vegetation control sample collected.

The aquatic vegetation samples collected pose no radiological dose consequence since this is not a dose pathway to the general public. Gamma analyses of the aquatic vegetation samples detected no plant-related activity in any of the samples, other than natural occurring gamma activity.3.7 FISH Samples of free-swimming and bottom-feeding fish were taken from Lake Robinson and Prestwood Lake (the first downstream lake) and compared to similar fish from a control lake, which is unaffected by plant operation.

During 2013, 4 out of 4 bottom-feeding fish and 4 out of 4 free-swimming fish (indicator sites) demonstrated detectable concentrations of Cs-137 for an average value of 2.51E+1 pCi/kg (wet) and 3.69E+1 pCi/g (wet), respectively.

The control samples had detectable concentrations of Cs-137 for 2 out of 2 bottom-feeding fish and 2 out of 2 free-swimming fish for an average concentration of 2.61E+1 pCi/kg (wet) and 5.97E+1 pCi/kg (wet), respectively.

Upon comparing these results, it is concluded that the 2013 indicator values reflect fallout Cs-137 contamination.

Past sampling experience further supports this interpretation.

Section 3 -Page 10 3.8 SHORELINE SEDIMENT In 2013, no gamma activity associated with plant operation was detected in any sample in the semiannual shoreline sediment samples. Only naturally occurring gamma activity was detected.No Cs-137 activity was detected in 2013; however, Cs-137 activity has been detected in shoreline sediment samples in past years, which was attributed to worldwide fallout and not the plant operation.

3.9 BOTTOM SEDIMENT During 2013, a total of three bottom sediment samples were analyzed from the indicator location and one from the control location.

The bottom sediment samples are used as indicators of buildup of radioactivity in the environment and do not constitute a dose pathway. Cs-137 activity was detectable in one of the three indicator bottom sediment samples in 2013, with a single concentration of 3.68E+2 pCi/kg (dry). The control sample indicated detectable Cs-137 activity with a concentration of 1.69E+2 pCi/kg (dry). This concentration is similar to previous years and does not indicate a buildup in the environment.

No other gamma activity, except for naturally occurring gamma activity, was detected in the annual bottom sediment samples in 2013.3.10 ASIATIC CLAMS Benthic samples from Lake Robinson during 2013 continue to confirm the absence of any substantial populations of Asiatic clams (Corbiculaflurninia).

The natural chemistry of the lake (i.e., low alkalinity and hardness) inhibits their proliferation.

3.11 DIRECT GAMMA RADIATION 3.11.1 ENVIRONMENTAL TLD In 2013, 169 TLDs were analyzed, 165 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 13.7 mR/std. qtr. and 12.1 mR/std. qtr. respectively.

The highest indicator location for 2013 was TLD location #35 at 4.5 miles SSW at Kelly Bridge Road (#S-31-51) and its average was 21.2 mR/std. qtr. The differences among these locations are attributed to variations in soils, local geology, and are not the result of plant operations.

There were three missing TLDs during the HBRSEP 2013 collection period (CR # 601951 and CR # 616846/PIP

  1. G-1 3-01474).Section 3 -Page II Comparison of the quarterly TLD exposure within approximately I mile (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 lower 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.

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 HBRSEP 2013 TLD Averages for Inner and Outer Ring Locations 16 15 13 12 11 510 a. 9 87 6 5 4-3 2 1 0 F6" Quaretr SewUmd Quarter Third Quarter Fourth Quarter 1111uter Router Section 3 -Page 12 3.12 LAND USE CENSUS The 2013 HBRSEP Annual Land Use Census was conducted in July, 2013 to meet the requirements of the HBRSEP ODCM 4.4.1. Table 3.11.3 summarizes the HBRSEP 2013 census results. During the 2013 census no milk locations were identified within five miles (8 kilometers) of HBRSEP. Based on a review of sampling requirements, existing/new sample locations, and relative depositions values, no new environmental program changes were required as a result of the 2013 Land Use Census.3.12.1 PURPOSE OF LAND USE CENSUS The land use census identifies the pathways (or routes) that radioactive material may reach the general populations near commercial nuclear generating stations.

This is accomplished by completing studies each year that identify how the 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 conducted once per 12 months during the growing season. 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 products that may have radioactive materials deposited on them, incorporated radioactive materials from the soil or atmosphere.

Another pathway is through drinking milk from local cows or goats, if these are present 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]): Section 3 -Page 13 The nearest residentThe nearest garden of greater than 500 square feet, producing broadleaf vegetables

> The nearest milk animal> The nearest meat/egg producing animal The primary methods are visual. inspection from the roadside within the five (5) mile radius and personal contact with the individuals.

3.12.3 LAND USE CENSUS RESULTS The HBRSEP Land Use Census was performed July 2013 to meet the requirements of the HBRSEP's ODCM. The last HBRSEP land use census was performed in August 2012.The 2012 and 2013 results of the survey for the nearest resident, garden, milk and meat/egg producing animal for each meteorological sector are compared in Table 3.12.3.No milk producing animals were identified within the five-mile radius of the site in any sector. Milk sampling will resume if a new sample location is identified.

Also, no garden (at the time of the census) was currently growing leafy vegetables.

Vegetables like tomatoes, squash, okra, cucumbers, etc. are examples of the vegetables of choice for this area and are what is typically grown and sampled in the past. Sampling of these vegetables (non-leafy) will continue until leafy vegetables can be identified.

The results of the 2013 Land Use Census and 10 year average meteorological data were reviewed.

No changes in release pathways were identified as a result of the land use census that would require an ODCM change, additional dose calculations, or procedure changes were identified.

Section 3 -Page 14 Table 3.12.3 HBRSEP Land Use Census Comparison (2012 -2013)Nearest Pathway (Miles)*SECTOR RESIDENT GARDEN MEAT/EGG MILK ANIMAL ANIMAL 2012 2013 2012 2013 2012 2013 2012 2013 N 2.81 2.81 3.29 2.81* 4.75 2.81* ........NNE 1.51 1.51 2.08 2.08 2.71 2.71 ........N E 1.03 1.03 2 .7 1 2 .7 1 ................

EN E 0.83 0.83 1.07 1.07 ................

E 0.90 0.90 1.05 1.05 2.98 2.98 ........ESE 0.62 0.62 1.28 1.28 ----..........

SE 0.38 0.38 1.80 0.38* 2.00 2.00 ........SSE 0.33 0.33 2.37 2.37 2.37 2.37 ........S 0.40 0.40 2.25 2.25 2.62 2.62 ........SSW 0.37 0.37 0.84 0.84 0.93 0.84* ........S W 0 .4 6 0 .4 6 ..... .... .... .... .... ...WSW 0.45 0.45 0.88 0.88 0.88 0.88 ........W 0.54 0.54 0.70 0.70 ................

WNW 0.60 0.60* 0.83 0.83 4.27 4.27 .... ....NW 1.59 1.59 2.49 2.49 2.40 2.40 ........NNW 2.04 2.04 3.80 3.80 ................

  • Represents a change from the previous year.indicates no occurrences within the 5 mile radius** Sector and distance determined by Global Positioning System.Section 3 -Page 15 4.0 QUALITY ASSURANCE 4.1 SAMPLE COLLECTION Environmental sample collection was performed by HBRSEP Chemistry Fisheries, and Aquatic Ecology as specified by approved sample collection procedures in 2013.4.2 SAMPLE ANALYSIS HEEC Laboratories performed the environmental sample analyses (January -April, 2013) as specified by approved analysis procedures.

HEEC Laboratories were located in New Hill, North Carolina, at Progress Energy's Environmental Center until the merger decommissioned the lab and services were consolidated at the EnRad Laboratory in Huntersville, North Carolina.

EnRad Laboratories performed the environmental sample analyses (May -December, 2013) as specified by approved analysis procedures.

EnRad Laboratories is located in Huntersville, North Carolina, at Duke Energy Progress Inc.'s Environmental Center.4.3 DOSIMETRY ANALYSIS The Radiation Dosimetry and Records group at the Harris Energy and Environmental Center (1IEEC) 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 HEEC and EnRad Laboratories both have 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.Section 4 -Page 1 4.4.3 BATCH PROCESSING Method quality control samples are analyzed with sample analyses that are processed in batches. These include gross beta in ground water and tritium analyses.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.The Chemistry Services Radiochemistry Laboratory located at the Harris Energy and Environmental Center (HEEC) participated in the Environmental Cross Check Program administered by Eckert & Ziegler Analytics, Inc. for the first quarter 2013 (the laboratory was subsequently decommissioned and services were consolidated at the EnRad Laboratory in Huntersville, NC). Cross-check standards including gross beta in water, gamma in milk and soil, and tritium in water were analyzed during the first quarter period of 2013. A summary of the HEEC Laboratory program results for first quarter 2013 is documented in Table 4.0-D.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 SOUTH CAROLINA INTERCOMPARISON PROGRAM HBRSEP routinely participates with the Bureau of Radiological Health of the State's Department of Health and Environmental Control (DHEC) in an intercomparison program. The split sampling program between SC DHEC and Duke Energy Progress, Section 4 -Page 2 Inc. (HBRSEP) consist of surface water, fish, vegetation, and sediment samples collected by HBRSEP. Samples. Samples are routinely split with SC DHEC for intercomparison analysis.

Results of the analyses performed on split and duplicate samples are sent to SC DHEC. This program was discontinued late in the year at the request of SC DHEC (PIP # G-13-02184) and was replaced by a similar program with a vendor laboratory.

Section 4 -Page 3 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 Vau Vakue nRatio Evaluation Tritium in Water QI31TWRI H-3 I 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 QI31TWR2 H-3 I 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 QI31TWR3 H-3 I 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 QI31GWR -0.5 L Mn-54 I pCi/L 4.16E+03 3.85E+03 1.08 Pass Co-57 I pCi/L 7.42E+03 6.86E+03 1.08 Pass Co-60 I pCi/L 5.94E+03 5.84E+03 1.02 Pass Sn-113 I 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 QI31GWR -1.0 L Mn-54 I 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 I 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 I pCi/L 3.38E+03 3.46E+03 0.98 Pass Q131GWR -3.5 L Mn-54 I pCi/L 4.38E+03 3.85E+03 1.14 Pass Co-57 I pCi/L 7.91E+03 6.86E+03 1.15 Pass Co-60 I 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 I pCi/L 3.48E+03 3.46E+03 1.00 Pass Section 4 -Page 4 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 Val Value Ratio Evaluation Beta Filter E10509 Gross Beta I pCi 86.5 94.2 0.92 Agreement E10606 Gross Beta 3 pCi 187 215 0.87 Agreement Gamma Filter E 10508 Ce- 141 1 pCi 97.3 107 0.91 Agreement Cr-51 I 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 I pCi 149 144 1.04 Agreement Zn-65 I pCi 179 171 1.04 Agreement Co-60 I pCi 224 228 0.98 Agreement 1-131 in Milk E10531 1-131 2 pCi/L 91.8 97.3 0.94 Agreement 1-131 in Water E 10709 1-131 4 pCi/L 98.6 99 1.00 Agreement Beta in Water E10532 Gross Beta 2 pCi/L 304 293 1.04 Agreement E 10708 Gross Beta 4 pCi/L 291 279 1.04 Agreement 1-131 Cartridge E10533 1-131 2 pCi 94 89.7 1.05 Agreement E10707 1-131 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 5 TABLE 4.0-B (Cont.)Sample Sample ID Nuclide Quarter Units EnRad EZA EnRad/EZA Evaluation Sameape Nuid QuartValue 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 1-131 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 pCVL 129 120 1.08 Agreement Zn-65 2 pCi/L 239 217 1.10 Agreement Co-60 2 pCiL 177 175 1.01 Agreement Gamma in Water E10704 1-131 4 pCi/L 95.4 92.4 1.03 Agreement Ce-141 4 pCiL 89.3 88.8 1.01 Agreement Cr-51 4 pCiL 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 pCVL 91.5 90.6 1.01 Agreement Mn-54 4 PCi/L 141 136 1.04 Agreement Fe-59 4 Ei/L 92.6 89.1 1.04 Agreement Zn-65 4 629 600 1.05 Agreement Co-60 4 M i 123 119 1.04 Agreement Section 4 -Page 6 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-13-00925and G-13-02152).

Complete documentation of any evaluation will be available and provided to the NRC upon request.Sample Sample ID Nuclide Quarter Units EnRad ERA Acceptance 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
  1. RAD-95 H-3 4 pCi/L 17000 17700 15500- 19500 Acceptable Iodine-131 in RAD-93 1-131 2 pCi/L 26.9 23.8 19.7-28.3 Acceptable Water RAD-95 1-131 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 7 TABLE 4.0-D ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM 2013 Cross Check Results for HEEC Laboratories The Chemistry Services Radiochemistry Laboratory at HEEC participated in the Environmental Cross Check Program administered by Eckert & Ziegler Analytics, Inc. (EZA) for first quarter 2013. Cross check samples are received, prepared, and analyzed in one quarter 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). Cross check samples were evaluated in accordance with applicable procedures.

Twenty-one environmental results were reported for the year, and all passed the acceptance criteria (100%) based on IP 84750.HEEC EZA HEEC/EZA Sample Sample ID Nuclide Quarter Units Valu Va Ratio Evaluation

_________

_________Value Value Ratio _____Gross Gross beta water E10437 beta 1 pCi/L 315 300 1.05 Agreement Tritium in water E10436 H-3 I pCi/L 13200 14000 0.94 Agreement Gamma Milk E10438 Cr-51 I pCi/L 470 472 1.00 Agreement Mn-54 I pCi/L 223 208 1.07 Agreement Co-58 1 pCi/L 209 208 1.00 Agreement Fe-59 1 pCi/L 270 252 1.07 Agreement Co-60 I pCi/L 408 400 1.02 Agreement Zn-65 1 pCi/L 322 301 1.07 Agreement 1-131 1 pCi/L 97 100 0.97 Agreement Cs-134 1 pCi/L 209 214 0.98 Agreement Cs-137 I pCi/L 275 266 1.04 Agreement Ce-141 1 pCi/L 192 187 1.02 Agreement Gamma Soil E10439 Cr-51 I pCi/g 0.785 0.789 1.00 Agreement Mn-54 1 pCi/g 0.359 0.348 1.03 Agreement Co-58 1 pCi/g 0.343 0.348 0.99 Agreement Fe-59 1 pCi/g 0.453 0.422 1.07 Agreement Co-60 I pCi/g 0.67 0.668 1.00 Agreement Zn-65 1 pCi/g 0.549 0.503 1.09 Agreement Cs-134 1 pCi/g 0.363 0.358 1.02 Agreement Cs-137 1 pCi/g 0.539 0.529 1.02 Agreement Ce-141 I pCi/g 0.324 0.313 1.03 Agreement Section 4 -Page 8 APPENDIX A ENVIRONMENTAL SAMPLING&ANALYSIS PROCEDURES Appendix A -Page I APPENDIX A ENVIRONMENTAL SAMPLING AND ANALYSIS PROCEDURES Adherence to established procedures for sampling and analysis of all environmental media at the H. B. Robinson Steam Electric Plant, Unit No. 2 (HBRSEP) was required to ensure compliance with provisions of the Nuclear Regulatory Commission's Regulatory Guide 4.8, HBRSEP Technical Specifications, and the IHBRSEP Off-Site Dose Calculation Manual (ODCM).Analytical procedures were employed to ensure that the ODCM detection capabilities were achieved at both company laboratories (HEEC and EnRad).Environmental sampling and analyses were performed by Harris Energy and Environmental Center (1HEEC) Laboratories (January -April, 2013), EnRad Laboratories (May -December, 2013), Dosimetry and Records, Fisheries and Aquatic Ecology.Section IV of this appendix describes the environmental sampling frequencies and analysis procedures by media type that each laboratory conducted in 2013.I. CHANGE OF SAMPLING PROCEDURES No changes were made to the sampling procedure during 2013 other than where to ship samples. In May of 2013, the HBRSEP REMP samples were no longer being shipped to HEEC, but were going to EnRad Laboratories for analysis.II. DESCRIPTION OF ANALYSIS PROCEDURES Gamma spectroscopy analyses are performed using high purity germanium gamma detectors with thin aluminum windows housed in steel and lead shields and Canberra analytical software.

Designated sample volumes are transferred to appropriate counting geometries and analyzed by gamma spectroscopy.

Per HEEC procedures, aquatic and broadleaf vegetation and food product samples are transferred to an appropriate counting geometry container, as sampled (wet), weighed, and analyzed.

According to HEEC procedures; fish samples are prepared by placing small raw, edible portions of the fish into an appropriate counting geometry container and shoreline and bottom sediments are dried, ground, and placed in an appropriate counting geometry container where all are weighed and analyzed by gamma spectroscopy.

The EnRad Laboratory's perishable samples such as fish, food products, aquatic vegetation, and broadleaf vegetation are ground to achieve a homogeneous mixture and then transferred to an appropriate counting geometry.

EnRad's soil and sediment samples are dried, sifted to remove foreign objects (rocks, clams, glass, etc.), and then transferred to an appropriate counting geometry container.

Once prepared for counting, EnRad's samples (fish, food products, Appendix A -Page 2 aquatic vegetation, broadleaf vegetation, soils, and sediments) are analyzed by gamma spectroscopy.

Low-level Iodine-131 (LLI-131) in ground water is determined by an instrumental method at the HEEC Laboratory.

The analysis involves passing a known sample volume over a premeasured volume of anion exchange resin to remove and concentrate any iodine in the aqueous sample (water). The resin is then transferred to an appropriate counting geometry container and analyzed by direct gamma spectroscopy.

Low-level iodine analyses are performed at the EnRad Laboratory 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 (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.

Tritium analyses are performed monthly and quarterly by using a liquid scintillation analysis technique on an HEEC liquid scintillation counter (Packard TriCarb 2500 or 2900); while EnRad uses 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 quarterly on a ground water sample 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 in May 2013, due to all the samples being analyzed at the EnRad Laboratory from May of 2013 forward 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 (AP) and radioiodine (AR or AC) samples at each of ten locations were composited continuously by means of continuous air samplers.Air particulates were collected on a particulate filter and radioiodines were collected in a charcoal cartridge positioned behind the filter in the sample head.The samplers are designed to operate at a constant flow rate (in order to compensate for any filter loading) and are set to sample approximately 2 cubic feet per minute. Filters and cartridges were collected weekly. A separate weekly gamma analysis was performed on each charcoal cartridge.

A weekly Appendix A -Page 3 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 Location 2 Location 3 Location 4 Location 5 Location 6 Location 7 Location 55 Location 60 Location 61-24.4 miles ESE Florence, S.C. (Control)= 0.2 miles S Information Center= 0.5 miles N Microwave Tower-0.4 miles ESE Spillway-0.9 miles ENE East shore of lake near Johnson's Landing-0.2 miles SSW Information Center-6.4 miles ESE CP&L facility on RR Ave., Hartsville

= 0.2 miles SSE South of West Settling Pond= 0.2 miles SE Robinson Picnic Area= 0.3 miles WSW West Parking lot near RR tracks A.2 SURFACE WATER Weekly composite surface water (SW) samples were collected from four locations, with aliquots going to monthly composite samples. Tritium and gamma analyses were performed on the monthly composites.

The composites are collected from the locations listed below.Location 40 Location 41 Location 57 Location 66 0.6 miles ESE Black Creek at old Camden Road (S- 16-23) -Lake Robinson= 8.0 miles N Black Creek at US Hwy 1 (Control)= Ash Pond= Black Creek between Prestwood Lake discharge and upstream of Sonoco Spray Farm (downstream)

A.3 GROUND WATER Grab samples were collected quarterly from ground water (GW) wells at fifteen (15) locations.

A gamma analysis and tritium analysis were performed on each sample. A low-level Iodine-131 Analysis was performed on GW-68 and GW-82 along with a gross beta analysis only on GW-82. The samples were collected from the locations listed below.Location 42 Location 64 Location 68 Location 69 Location 70 Unit I Deep Wells 0.6 miles SE Artesian Well Well A Btwn Unit I switchyard

& breakroom Well B Behind the Training Building Well C Btwn the O&M Building & Fab Shop Appendix A -Page 4 Location 71 Location 72 Location 73 Location 75 Location 76 Location 77 Location 78 Location 79 Location 81 Location 82= 0.87 miles NNW (MW-03A) Btwn Ash Pond &RR tracks-0.1 miles E (MW-06) 20 ft from FP/FH 7 fire hydrant & Unit I North Deep Well Pump-0.11 miles ENE (MW-13) Btwn Discharge Canal & Unit I Stand Alone Fuel Oil Tanks 0.05 miles NE (PSW-02) By Unit I boundary Fence to Unit 2 across paved rd. from Hydrogen Gas Tanks-0.49 miles N (PSW-03) NE comer of the MET Tower Station= 0.25 miles SSE (TS-01B) By entrance rd. to Unit 1= 0.17 miles SSE (TS-02C) NE comer by East Settling Pond influent by fence-1.0 mile N (TS-07C) S comer by cove &Discharge Canal= 0.19 miles SSE (TS-17B) W of West Settling Pond across paved rd.= 0.3 miles SSE (PDW-01) By entrance rd. to Unit I A.4 BROADLEAF VEGETATION Monthly samples, three different species, were collected at each of five locations when available.

A gamma analysis was performed on each sample. The samples were collected from the locations listed below.Location 50 Location 51 Location 52 Location 62 Location 67 SSE Close to Site Boundary Close to Site Boundary 10 miles W near Bethune (Control)SE Close to Site Boundary S Close to Site Boundary A.5 FOOD PRODUCTS Annually samples, of three different types of broadleaf vegetation (edible portions), were collected when available during harvest at three locations.

A gamma analysis was performed on the edible portions of each sample. The samples were collected from the locations listed below.Location 49 10.0 miles W or greater than 5 miles from plant (Control)Appendix A -Page 5 Location 54 Location 58= 10.1 miles E Auburndale Plantation (if irrigating from Black Creek)= Site varies from plant A.6 AQUATIC VEGETATION Annual samples were collected at each of the four locations.

A gamma analysis was performed on each sample. The samples were collected from the locations listed below.Location 41 Location 45 Location 46 Location 66= 7.2 miles NNW Black Creek (upstream)

-(Control)-Site varies within Lake Robinson= Site varies within Prestwood Lake-Black Creek btwn Prestwood Lake discharge

&upstream of Sonoco Spray Farm (downstream)

A.7 FISH Semiannual samples of bottom feeders and free swimmers were collected at each of three locations.

A gamma analysis was performed on the edible portions of each sample. The samples were collected from the locations listed below.Location 45 Location 46 Location 47 Site varies within Lake Robinson Site varies within Prestwood Lake Control station, Any lake not influenced by plant discharge (Control)A.8 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 44 Location 57= 1.6 miles NNE East shore of lake, Shady Rest Club= Ash Pond Shore Appendix A -Page 6 A.9 BOTTOM SEDIMENT Annual samples were collected at each of the four locations.

A gamma analysis was performed on each sample following the drying; the removal of rocks, clams, etc.; and grinding (if necessary).

The samples were collected from the locations listed below.Location 41 = 7.2 miles NNW Black Creek (upstream)

-(Control)Location 45 Site varies within Lake Robinson Location 46 = Site varies within Prestwood Lake Location 66 = Black Creek btwn Prestwood Lake discharge

&upstream of Sonoco Spray Farm (downstream)

A.10 DIRECT GAMMA RADIATION (TLD)Thermoluminescent dosimeters (TLD) were collected quarterly at forty-three 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 25 TLDs, one in each meteorological sector in the general area of the site boundary.An outer ring of 17 TLDs, one in each meteorological sector in the 6 to 8 kilometer range.The remaining TLDs were placed in special interest areas such as population centers, residential areas, schools, and at a control location.A.11 ANNUAL LAND USE CENSUS An Annual Land Use Census was conducted to identify within a distance of 5.0 miles (8 kilometers) from the plant, the nearest location from the site boundary in each of the sixteen meteorological sectors, the following:

  • The Nearest Residence The Nearest Garden greater than 500 square feet or 50 square meters, producing broadleaf vegetables (fresh leafy vegetables)
  • The Nearest Milk-giving Animal (cow, goat, etc.)* The Nearest Meat/Egg producing Animal (beef, hogs, chickens, etc.)Appendix A -Page 7 The census was conducted during the growing season in July of 2013. Results are shown in Table 3.11.3. No changes were made to the sampling procedures during 2013 as a result of the 2013 census.Appendix A -Page 8 APPENDIX B RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

OF RESULTS 2013 Appendix B -Page I H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 (HBRSEP)RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

H. B. Robinson Steam Electric Plant, Unit No. 2 Docket Numbers: 50 -261 Darlington County, South Carolina Calendar Year: 2013 Location w/Highest Annual Meant 2 t Medium or Pathway Type and Lower Limit All Indicator Control Locations No. of Sampled or Measured Total No. of of Detection Locations Name, Distance, 3 t Mean(2X 3) Non-Routine (Unit of Measurement)

Measurements (LLD)(Y Mean"" 3) and Direction Rangert Range(2) Report Performed Range(2 Meas.Loc. # 3 Loc. # I Air Particulatet 4 , Gross Beta See Table 2.2-C 1.82E-2 (467/467)

Microwave Tower 2.0 1E-2 (52/52) 1.74E-2 (52/52) 0 (pCi/m 3) 519141 4.68E-3 -3,56E-2 0.5 miles N 7.64E-3 -3.56E-2 5.56E-3 -2.97E-2 G am m a See Table 2.2-C A ll less than LLD .....).... A ll less than LLD 0 40 Air 1-131 See Table 2.2-C All less than LLD ..........-

All less than LLD 0 Cartridge/Radioiodine t 4 l 520(41 (pCi/mr)Aquatic Vegetationu61 Gamma See Table 2.2-C All less than LLD ..........

All less than LLD 0 (pCi/g, wet) 4 Loc #51 Loc #52 Broadleaf Gamma See Table 2.2-C 4.81E+1 (27/60) Close to Site 5.27E+l (4/15) 5.31E+ 1 (8/15) 0 Vegetation")")

75 4NO) 1.70E+I -1.85E+2 Boundary (BL-5 I) 3.85E+l -7.72E+1 2.43E-1 -1,62E+2 (pCi/g, wet) Cs-137 SSW Fish Gamma 3.08E+3 (4/4) Loc # 46 3.41EE+3 (2/2) Loc # 47 Free-Swimmers 6 ----- 2.60E+3 -3.62E+3 Site varies within 3.20E+3 -3.62E+3 3.15E+3 (2/2) 0 (pCi/kg, wet) K-40 Prestwood Lake 2.72E+3 -3.57E+3 Cs-137 See Table 2.2-C 3.69E+1 (4/4) Loc 6 46 4.47E+1 (2/2) Loc #47 2.52E+l -5.15E+] Site varies within 3.79E+l -5.15E+1 5.97E+1 (2/2) 0 Prestwood Lake 5.01 E+1 -6.93E+l Fish Bottom-Feeders Gamma ..... 3,12E+3 (4/4) Loc # 46 3.40E+3 (2/2) Loc #47 (pCi/kg, wet) 6 2.66E+3 -3.76E+3 Site varies within 3.04E+3 -3.76E+3 2.49E+3 (2/2) 0 K-40 Prestwood Lake 2.18E+3 -2.79E+3 Cs-137 See Table 2.2-C 251E+1 (4/4) Loc # 46 2.61E+l (2/2) Loc #47 2.30E+l -2.92E+1 Site varies within 2.30E+1 -2.92E+l 2.61E+1 (2/2) 0 Prestwood Lake 2.22E+1 -2,99E+l Appendix B -Page 2 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 (HBRSEP)RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

(cont.)H. B. Robinson Steam Electric Plant, Unit No. 2 Docket Numbers: 50 -261 Darlington County, South Carolina Calendar Year: 2013 Location w/Highest Annual Mean 2 t)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 t)3 Mean(K3) Non-Routine (Unit of Measurement)

Measurements (LLD)Y" Meant 2 t 3) and Direction Range" 2) Range") Report Performed Ranget 2 t Meas.Food Products" 4' Gamma 3.53E+3 (2/2) Loc # 54 4.11E+3 (1/1) Loc # 49 (pCi/kg, wet) 34 ..... 2.95E+3 -4.11 E+3 Auburndale Single Value 3.73E+3 (1/1) 0 K-40 Plantation Single Value 10.1 miles E Ground Gamma See Table 2 2-C All less than LLD No Control 0 (pCi/I) 60(49) ..........

Loc #82 Gross Beta ..... 1.81E+0 (4/4) (PDW-01) Entrance L181E+0 (4/4) No Control 0 4 1.29E+0 -3.04E+0 Rd. to U/I I.29E+0 -3.04E+0 0.3 miles SSE 1-131 See Table 2.2-C All less than LLD ----- No Control 0 6(4K9)Los #79 Tritium 2,000)s' 5.85E+2 (25/60) (TS-07C) South 1.46E+3 (4/4) No Control 0 60 L.65E+2 -169E+3 comer by cove & 129E+3 -I169E+3 Discharge Canal 1.0 mile N Shoreline Sediment Gamma See Table 2.2-C All less than LLD ..........-

No Control 0 (pCi/kg, dry) 4 Bottom Sedimenti,6 Gamma") See Table 2.2-C 3.68E+2 (1/3) Loc #46 3.68E+2 (1/1) Loc # 41 0 (pCi/kg, wet) 4 Single Value Site varies within Single Value 1.69E+2 (1/1)Cs- 137 Prestwood Lake Single Value Surface Water Gamma See Table 2.2-C All less than LLD ..........-

All less than LLD 0 (pCi/I) 48 Loc t 40 Tritium 2,000"8) 2166E+3 (25/36) Black Creek at Old 3.14E+3 (12/12) All less than LLD 0 48 3.67E+2 -7.48E+3 Camden Rd. -Lake 7.30E+2 -7.48E+3 Robinson 0.6 miles ESE Appendix B -Page 3 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 (HBRSEP)RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

(cont.)H. B. Robinson Steam Electric Plant, Unit No. 2 Darlington County, South Carolina Docket Numbers: Calendar Year: 50 -261 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 1 Mean(2)()

Non-Routine (Unit of Measurement)

Measurements (LLD)'" Mean(2X3) and Direction RangeMZ Range(2) Report Performed Range() Meas.Direct Radiation (TLD) TLD Readout ---- 1.37E+l (165/165)

Loc.# 35 2.12E+1 (4/4) Loc. 4 1 0 (mR per quarter)('!

169(4) 9.50E+0 -2.69E+1 Kelly Bridge Road 1.91 E+ I -2.69E+ 1 1.21E+I (4/4)4.5 miles SSW 1.20E+1 -h23E+l 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. Three types of broadleaf vegetation samples are collected monthly when available from four locations for a possible total of 144 samples.6. Bottom sediment and aquatic vegetation sampling are not required by plant Offsite Dose Calculation Manual (ODCM). Sampling and analysis is performed to monitor any radionuclide accumulation in the lake.7. 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).8. 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.
9. Ground Water results for most of third quarter 2013 samples did not meet the required ODCM LLDs for 1131 and BaLa- 140 gammas and LLI- 131 (Low-level 1-131). Refer to Appendix D. These results are not part of the statistical summary.Appendix B -Page 5 APPENDIX C SAMPLING DEVIATIONS

&UNAVAILABLE ANALYSES Appendix C -Page I APPENDIX C H. B. ROBINSON 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 was one missed sample in 2013 from the HBRSEP established air samplers.

The air samplers operated for a total of 99.6% availability in 2013.Missed Samples:* AP-7; February 4 -February 11, 2013 -Down time was 170.1 hours1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />. When collecting the weekly air particulate and iodine cartridge (radioiodine cartridge), the particulate filter was missing from the air sampler head assembly (CR # 588501).Missed Surveillances:

  • APAC-4; September 30 -October 7, 2013 and October 7 -14, 2013 -Total down time was 130 hours0.0015 days <br />0.0361 hours <br />2.149471e-4 weeks <br />4.9465e-5 months <br />. The air sampler was found not running for 107 hours0.00124 days <br />0.0297 hours <br />1.76918e-4 weeks <br />4.07135e-5 months <br /> of down time for sample collection week of September 30 -October 7, 2013. A work order was generated, but the sampler repair carried over into the next sampling period (October 7 -14, 2013) for additional downtime of 23 hours2.662037e-4 days <br />0.00639 hours <br />3.80291e-5 weeks <br />8.7515e-6 months <br /> (CR # 633568 / PIP # G-14-00434).

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.APAC-4 in March 2013 (CR # 593038)APAC-1 in September 2013 (CR # 626315)Broadleaf Vegetation Broadleaf vegetation (BL) samples were not available for sampling during the months of January, February, March, April, and December of 2013 due to the seasonal nature of broadleaf vegetation (CR # 582652, 588307, 594152, 599901, and 651749 / PIP # G-13-02283).Appendix C -Page 2 Thermoluminescent Dosimeters (TLDs)Three out of a possible 172 TLD samples (control and indicator locations), were missing during 2013.TLD # 27 First Quarter 2013 TLD # 27 was missing in the field. The area was searched, but the TLD could not be located (CR # 601951 ).TLD # 28 First Quarter 2013 TLD # 28 was missing in the field. The area TLD could not be located (CR # 601951).was searched, but the TLD # 9 Second Quarter 2013 TLD # 9 was missing in the field. The area was searched, but the TLD could not be located (CR #616846 / PIP # G-13-01474).

Appendix C -Page 3 APPENDIX D ANALYTICAL DEVIATIONS Appendix D -Page I APPENDIX D H. B. ROBINSON NUCLEAR PLANT ANALYTICAL DEVIATIONS Ground Water Missed Surveillances:

Third Quarter 2013 Detection Limits Not Achieved* Some 1-131 and BaLa-140 detection limits of third quarter 2013 RNP Ground water (GW) samples were not achieved by gamma spectroscopy testing. The GW samples were collected August 13, 14, and 15, 2013 and arrived at the EnRad Laboratory September 24, 2013. The hold time (time from collection to time of analysis) was at best 40 days. A typical 1-131 hold time is eight (8) days (Iodine-131 goes through a half-life decay about every 8.04 days); therefore, the samples upon arrival at EnRad Laboratory had already gone through approximately five (5) half-lives of decay for the 1-131 activity.

Discussion with plant personnel determined that the GW samples were collected the week of August 13, 2013, and then the GW samples were held for an undetermined reason at the Robinson Plant, thus not being submitted to the EnRad Laboratory in a timely manner. Robinson personnel indicated the GW wells listed do not have a history of detection of the nuclides (1-131 and BaLa-140).

The EnRad Laboratory analyzed the samples for maximum gamma acquisition times to attempt to achieve best possible detection limits, but excessive hold times of 40 days or more made achieving the detection limits impossible.

The gamma detection limits (1-131 15 pCi/L, BaLa-140 15 pCi/L, and low level 1-131 [LLI-131]

1.0 pCi/L) were not achieved for the specific samples listed below and the results for these missed GW LLDs appear in Appendix E. This is in violation of the sampling requirements and the stated LLD requirements described in the H.B. Robinson Nuclear Plant ODCM (CR # 634509 / PIP # G-13-01765).

1-131 detection limit not achieved: GW-71 1- 131, BaLa- 140, and LLI-131 detection limits were not achieved: GW-68 and GW-82 1- 131 and BaLa- 140 detection limits were not achieved: GW-42, 64, 69, 70, 72, 73., 75 -79, 81, and PSW-05 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 I H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point I [ CONTROL -ESE @ 24.4 miles ]Sample ID: 178076 Sample Dates: 211812013

-211812013 Sample ID: 186466 Sample Dates: 1/712013 -1/7/2013 Sample ID: 185472 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.OOE-02 O.OOE+00 7.OOE-02 Cs-134 <5.OOE-02 O.00E+00 5.00E-02 Cs-137 <6.OOE-02 0.OOE+00 6.OOE-02 Be-7 1.14E-01 2.37E-02 Nuclide Activity Sigma Error (1) LLD Beta 2.92E-02 2.43E-03 1.51E-03 Nuclide Activity Sigma Error (1) LLD Beta 2.31 E-02 2.09E-03 1.32E-03 Sample ID: 185489 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.07E-02 2.05E-03 1.52E-03 Sample ID: 185506 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.97E-02 2.41E-03 1.59E-03 Sample ID: 185523 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.60E-02 2.26E-03 1.49E-03 Sample ID: 185540 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.02E-02 2.11 E-03 1.50E-03 Sample ID: 185556 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.97E-02 1.97E-03 1.42E-03 Sample ID: 185573 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.63E-02 1.97E-03 1.60E-03 Sample ID: 185590 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.65E-02 1.84E-03 1.41E-03 Sample ID: 185607 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Beta Activity Sigma Error (1) LLD 1.39E-02 1.91 E-03 1.69E-03 Sample ID: 185624 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Beta Activity Sigma Error (1) LLD 2.21 E-02 2.10E-03 1.49E-03 Sample ID: 185641 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.20E-02 2.33E-03 1.83E-03 Sample ID: 186658 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.49E-02 1.76E-03 1.48E-03 Sample ID: 256288 Sample Dates: 4/1/2013 -4/812013 Nuclide Activity Sigma Error (1) LLD Beta 1.76E-02 1.29E-03 2.73E-03 Sample ID: 256341 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.24E-02 1.19E-03 2.83E-03 Sample ID: 257131 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.43E-02 1.27E-03 3.03E-03 Sample ID: 257239 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.29E-02 1.19E-03 2.76E-03 Sample ID: 257284 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.26E-03 1.18E-03 3.18E-03 Sample ID: 257731 Sample Dates: 5/6/2013 -6/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.49E-02 1.25E-03 2.75E-03 Sample ID: 257976 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.47E-02 1.45E-03 2.68E-03 Sample ID: 258210 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.30E-02 1.34E-03 3.21 E-03 Sample ID: 258557 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.19E-02 1.08E-03 2.53E-03 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display I sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories Efl 13339 Hagers Ferry Road S- Huntersville, North Carolina 28078 Appendix E -Page 2 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point I [ CONTROL -ESE @ 24.4 miles ]Sample ID: 259027 Sample Dates: 6/3/20 Sample ID: 259575 Sample Dates: 6/10/20 Sample ID: 260209 Sample Dates: 6/18/20 Sample ID: 260669 Sample Dates: 7/1/20 Sample ID: 261632 Sample Dates: 7/8/20 Sample ID: 261956 Sample Dates: 6/24/2 Sample ID: 262134 Sample Dates: 7/15/20 Sample ID: 262731 Sample Dates: 4/1120 Sample ID: 263207 Sample Dates: 7/22/20 Sample ID: 263422 Sample Dates: 7/29/2 Sample ID: 264077 Sample Dates: 8/5/20 Sample ID: 265211 Sample Dates: 8/12/20 Sample ID: 265531 Sample Dates: 8/20/20 Sample ID: 267206 Sample Dates: 8/26/2 Sample ID: 267676 Sample Dates: 9/3/21 Sample ID: 268516 Sample Dates: 919/20 Sample ID: 269686 Sample Dates: 9/16/20 Sample ID: 270781 Sample Dates: 9/23/20 Sample ID: 271503 Sample Dates: 9/30/20 Sample ID: 272113 Sample Dates: 10/7/20 Sample ID: 272508 Sample Dates: 10/14/21 Sample ID: 272659 Sample Dates: 7/1/20 13 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.34E-03 1.1OE-03 2.78E-03'13 -6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.52E-02 1.14E-03 2.39E-03 13 -6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.04E-02 1.29E-03 3.33E-03 13 -7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 5.56E-03 9.50E-04 2.62E-03 13 -7/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.97E-03 1.10E-03 2.81E-03 013 -7/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.54E-02 1.21E-03 2.46E-03 113 -7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.51E-03 1.03E-03 2.73E-03 113 -7/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.06E-02 O.0OE+00 3.06E-02 Cs-134 <3.56E-04 0.OOE+00 3.56E-04 Cs-137 <4.01E-04 0.OOE+00 4.01E-04 Be-7 1.23E-01 5.87E-03 5.10E-03 K-40 1.14E-02 2.04E-03 3.30E-03 113 -7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.73E-02 1.30E-03 2.74E-03 013 -8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.95E-02 1.36E-03 2.87E-03 13 -8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.44E-02 1.30E-03 3.08E-03 013 -8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.20E-02 9.99E-04 2.13E-03 013 -8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.10E-02 1.27E-03 3.12E-03 013 -9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.48E-02 1.44E-03 2.77E-03 013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.57E-02 1.87E-03 3.97E-03 13 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.73E-02 1.52E-03 2.79E-03 113 -9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.04E-02 1.40E-03 2.82E-03 113 -9130/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.45E-02 1.23E-03 2.77E-03 113 -10/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.33E-02 1.42E-03 2.64E-03 13 -10/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.13E-02 1.11E-03 2.55E-03 013 -10/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.OOE-02 1.35E-03 2.66E-03 13 -9130/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.88E-02 O.OOE+00 6.88E-02 Cs-1 34 <6.66E-04 O.OOE+00 6.66E-04 Cs-1 37 <6.22E-04 O.OOE+00 6.22E-04 Be-7 1.16E-01 7.28E-03 1.07E-02 K-40 2.38E-02 4.34E-03 4.66E-03 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 3 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point I [ CONTROL -ESE @ 24.4 miles ]Sample ID: 272896 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.37E-02 1.49E-03 2.97E-03 Sample ID: 273984 Sample Dates: 10/28/2013

-1114/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.77E-02 1.57E-03 2.94E-03 Sample ID: 274434 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1)Beta 1.32E-02 1.24E-03 LLD 2.92E-03 Sample ID: 274959 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.63E-02 1.29E-03 2.71E-03 Sample ID: 276502 Sample Dates: 11118/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.62E-02 1.28E-03 2.76E-03 Sample ID: 278767 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.97E-02 1.39E-03 2.84E-03 Sample ID: 278838 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.54E-02 1.27E-03 2.83E-03 Sample ID: 279078 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.06E-02 1.37E-03 2.70E-03 Sample ID: 279706 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.76E-02 1.32E-03 2.74E-03 Sample ID: 280195 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.66E-02 1.33E-03 2.92E-03 Sample ID: 280611 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-1 34 <2.45E-04 O.OOE+00 2.45E-04 Cs-1 37 <3.04E-04 O.OOE+00 3.04E-04 Be-7 9.05E-02 5.07E-03 5.08E-03 K-40 6.78E-03 1.76E-03 3.56E-03 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 178077 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.O0E-02 0.00E+00 7.O0E-02 Cs-134 <5.OOE-02 O.OOE+00 5.OOE-02 Cs-137 <6.OOE-02 O.OOE+00 6.OOE-02 Be-7 9.64E-02 2.39E-02 K-40 3.09E-02 1.47E-02 Sample ID: 185456 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.72E-02 2.36E-03 i,52E-03 Sample ID: 185473 Sample Dates: 1/1412013

-1/1412013 Nuclide Activity Sigma Error (1) LLD Beta 2.34E-02 1.99E-03 1.20E-03 Sample ID: 185490 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.52E-02 2.56E-03 1.92E-03 Sample ID: 185507 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.87E-02 2.27E-03 1.47E-03 Sample ID: 185524 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.63E-02 2.20E-03 1.42E-03 Sample ID: 185541 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.23E-02 2.02E-03 1.38E-03 Sample ID: 185557 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Sample ID: Sample ID: 185574 185591 Beta 2.16E-02 2.16E-03 1.56E-03 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.85E-02 1.91 E-03 1.39E-03 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.72E-02 1.77E-03 1.29E-03 (1) Analysis results generated by Harms Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Duke Energy Annual Report -Appendix E [. 13339 Hagers Ferry Road-- Huntersville, North Carolina 28078 Appendix E -Page 4 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCilm3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 185608 Sample Dates: 3/1112013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.48E-02 1.82E-03 1.51 E-03 Sample ID: 185625 Sample Dates: 3/18/2013

-3/1812013 Nuclide Activity Sigma Error (1) LLD Beta 2.50E-02 2.22E-03 1.49E-03 Sample ID: 185642 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.12E-02 2.26E-03 1.78E-03 Sample ID: 185659 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.66E-02 1.73E-03 1.35E-03 Sample ID: 256279 Sample Dates: 4/1/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.84E-02 1.33E-03 2.78E-03 Sample ID: 256342 Sample Dates: 418/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.53E-02 1.24E-03 2.75E-03 Sample ID: 257132 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.23E-02 1.23E-03 3.02E-03 Sample ID: 257237 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.44E-02 1.28E-03 2.91 E-03 Sample ID: 257285 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.43E-03 1.11E-03 2.95E-03 Sample ID: 257732 Sample Dates: 5/6/2013 -6/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.48E-02 1.23E-03 2.71 E-03 Sample ID: 257976 Sample Dates: 6/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.65E-02 1.51E-03 2.74E-03 Sample ID: 258211 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.19E-02 1.32E-03 3.25E-03 Sample ID: 258558 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.49E-02 1.16E-03 2.56E-03 Sample ID: 259028 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.12E-02 1.16E-03 2.77E-03 Sample ID: 259576 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.47E-02 1.13E-03 2.43E-03 Sample ID: 260210 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.31 E-02 1.40E-03 3.46E-03 Sample ID: 260670 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.18E-03 1.08E-03 2.70E-03 Sample ID: 261633 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.69E-03 1.09E-03 2.72E-03 Sample ID: 261957 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.60E-02 1.21E-03 2.42E-03 Sample ID: 262135 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.02E-02 1.16E-03 2.89E-03 Sample ID: 262732 Sample Dates: 4/1/2013 -71112013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.60E-02 0.OOE+00 2.60E-02 Cs-134 <2.39E-04 0.00E+00 2.39E-04 Cs-137 <3.53E-04 0.00E+00 3.53E-04 Be-7 1.38E-01 5.42E-03 4.58E-03 K-40 1.92E-02 2.05E-03 3.30E-03 Sample ID: 263208 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.56E-02 1.24E-03 2.68E-03 Sample ID: 263423 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.27E-02 1.50E-03 3.07E-03 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 5 of 120 Duke Energy Annual Report -Appendix E E, 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 264078 Sample Dates: 8/512013 -8112/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.67E-02 1.36E-03 3.11 E-03 Sample ID: 265212 Sample Dates: 8/1212013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.14E-02 1.OOE-03 2.19E-03 Sample ID: 265532 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.31E-02 1.33E-03 3.14E-03 Sample ID: 267207 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.60E-02 1.42E-03 2.64E-03 Sample ID: 267677 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.73E-02 1.71 E-03 3.35E-03 Sample ID: 268517 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.23E-02 1.63E-03 2.83E-03 Sample ID: 269687 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.54E-02 1.52E-03 2.87E-03 Sample ID: 270782 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.84E-02 1.34E-03 2.82E-03 Sample ID: 271504 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.85E-02 1.54E-03 2.67E-03 Sample ID: 272114 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.33E-02 1.22E-03 2.75E-03 Sample ID: 272509 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.11E-02 1.34E-03 2.56E-03 Sample ID: 272660 Sample Dates: 7/1/2013 -9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.30E-02 O.OOE+00 3.30E-02 Cs-134 <2.48E-04 O.OOE+00 2.48E-04 Cs-137 <2.73E-04 0.OOE+00 2.73E-04 Be-7 1.13E-01 4.96E-03 4.64E-03 K-40 2.21 E-02 2.45E-03 2.90E-03 Sample ID: 272897 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.56E-02 1.51 E-03 2.91E-03 Sample ID: 273985 Sample Dates: 10128/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.92E-02 1.60E-03 2.93E-03 Sample ID: 274435 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.50E-02 1.27E-03 2.89E-03 Sample ID: 274960 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.73E-02 1.30E-03 2.68E-03 Sample ID: 276503 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.78E-02 1.33E-03 2.78E-03 Sample ID: 278768 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.22E-02 1.39E-03 2.64E-03 Sample ID: 278839 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.76E-02 1.35E-03 2.90E-03 Sample ID: 279079 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.30E-02 1.42E-03 2.67E-03 Sample ID: 279707 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.90E-02 1.38E-03 2.81E-03 Sample ID: 280196 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.96E-02 1.41E-03 2.93E-03 Sample ID: 280612 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-1 34 <3.14E-04 0.OOE+00 3.14E-04 Cs-137 <3.33E-04 O.OOE+00 3.33E-04 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 6 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 280612 Sample Dates: 9/30/2013

-12130/2013 Nuclide Activity Sigma Error (1) LLD Be-7 1.01E-01 5.36E-03 4.57E-03 K-40 9.12E-03 1.90E-03 3.53E-03 Sample Point 3 [ INDICATOR

-N @ 0.5 miles]Sample ID: 178078 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.OOE-02 O.00E+00 7.00E-02 Cs-134 <5.00E-02 O.00E+00 5.00E-02 Cs-137 <6.OOE-02 0.OOE+00 6.00E-02 Be-7 1.20E-01 2.47E-02 Sample ID: 185457 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.40E-02 2.44E-03 1.36E-03 Sample ID: 185474 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.99E-02 2.26E-03 1.24E-03 Sample ID: 185491 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.43E-02 2.35E-03 1.71E-03 Sample ID: 185508 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.56E-02 2.74E-03 1.74E-03 Sample ID: 185525 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.01 E-02 2.57E-03 1.68E-03 Sample ID: 185542 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.59E-02 2.36E-03 1.62E-03 Sample ID: 185568 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.09E-02 2.24E-03 1.69E-03 Sample ID: 185575 Sample Dates: 2/2512013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.89E-02 1.97E-03 1.45E-03 Sample ID: 185592 Sample Dates: 3/4/2013 -314/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.91E-02 1.99E-03 1.45E-03 Sample ID: 185609 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.81E-02 1.93E-03 1.47E-03 Sample ID: 185626 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.92E-02 2.40E-03 1.53E-03 Sample ID: 185643 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.40E-02 2.38E-03 1.79E-03 Sample ID: 185660 Sample Dates: 4/1/2013 -4/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.87E-02 1.86E-03 1.40E-03 Sample ID: 256280 Sample Dates: 4/1/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.09E-02 1.40E-03 2.85E-03 Sample ID: 256343 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.98E-02 1.40E-03 2.91 E-03 Sample ID: 257133 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.82E-02 1.39E-03 3.10E-03 Sample ID: 257238 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.46E-02 1.28E-03 2.87E-03 Sample ID: 257286 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.88E-03 1.15E-03 3.03E-03 Sample ID: 267733 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.85E-02 1.33E-03 2.74E-03 Sample ID: 257977 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.18E-02 1.64E-03 2.80E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 7 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road k EHuntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 3 [ INDICATOR

-N @ 0.5 miles ]Sample ID: 258212 Sample Dates: 512012013

-6/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.34E-02 1.371-03 3.27E-03 Sample ID: 258559 Sample Dates: 5/26/2013

-61312013 Nuclide Activity Sigma Error (1) LLD Beta 1.46E-02 1.15E-03 2.53E-03 Sample ID: 259029 Sample Dates: 613/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.15E-02 1.18E-03 2.82E-03 Sample ID: 259577 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.60E-02 1.18E-03 2.46E-03 Sample ID: 260211 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.25E-02 1.37E-03 3.40E-03 Sample ID: 260671 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.64E-03 1.05E-03 2.74E-03 Sample ID: 261634 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.83E-03 1.06E-03 2.80E-03 Sample ID: 261959 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Beta 1.63E-02 Sigma Error (1) LLD 1.23E-03 2.45E-03 Sample ID: 262136 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.85E-03 1.09E-03 2.80E-03 Sample ID: 262733 Sample Dates: 4/1/2013 -7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.52E-02 0.00E+00 2.52E-02 Cs-134 <2.45E-04 0.00E+00 2.45E-04 Cs-1 37 <2.52E-04 0.00E+00 2.52E-04 Be-7 1.42E-01 5.28E-03 3.91 E-03 K-40 1.86E-02 2.37E-03 3.01 E-03 Sample ID: 263209 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.70E-02 1.31E-03 2.79E-03 Sample ID: 263424 Sample Dates: 7129/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.17E-02 1.46E-03 3.03E-03 Sample ID: 264079 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.49E-02 1.30E-03 3.04E-03 Sample ID: 265213 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.07E-02 1.00E-03 2.23E-03 Sample ID: 265533 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.32E-02 1.32E-03 3.09E-03 Sample ID: 267208 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.83E-02 1.47E-03 2.65E-03 Sample ID: 267678 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.99E-02 1.76E-03 3.33E-03 Sample ID: 268518 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.51 E-02 1.70E-03 2.90E-03 Sample ID: 269688 Sample Dates: 9/16/2013

-9/2312013 Nuclide Activity Sigma Error (1) LLD Beta 2.16E-02 1.43E-03 2.83E-03 Sample ID: 270783 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.62E-02 1.32E-03 2.93E-03 Sample ID: 271505 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.00E-02 1.58E-03 2.69E-03 Sample ID: 272115 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.12E-02 1.10E-03 2.55E-03 Sample ID: 272510 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.142-02 1.402-03 2.70E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Duke Energy Annual Report -Appendix E 'EU j~ 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 8 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 3[ INDICATOR

-N @ 0.5 miles ]Sample ID: 272661 Sample Dates: 71112013 -9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.90E-02 O.OOE+00 2.90E-02 Cs-134 <2.25E-04 O.OOE+00 2.25E-04 Cs-1 37 <3.91 E-04 0.00E+00 3.91 E-04 Be-7 1.10E-01 5.40E-03 4.72E-03 K-40 <7.06E-03 O.OOE+00 7.06E-03 Sample ID: 272898 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.71E-02 1.57E-03 2.98E-03 Sample ID: 273986 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.06E-02 1.64E-03 2.95E-03 Sample ID: 274436 Sample Dates: 1114/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.66E-02 1.32E-03 2.91 E-03 Sample ID: 274961 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.72E-02 1.33E-03 2.79E-03 Sample ID: 276504 Sample Dates: 11/1812013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.81E-02 1.34E-03 2.80E-03 Sample ID: 278769 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.07E-02 1.38E-03 2.72E-03 Sample ID: 278840 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.59E-02 1.30E-03 2.90E-03 Sample ID: 279080 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.21 E-02 1.41 E-03 2.71 E-03 Sample ID: 279708 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.94E-02 1.39E-03 2.80E-03 Sample ID: 280197 Sample Dates: 12)23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.86E-02 1.35E-03 2.84E-03 Sample ID: 280613 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-1 34 <1.89E-04 O.OOE+00 1.89E-04 Cs-1 37 <2.25E-04 O.OOE+00 2.25E-04 Be-7 1.09E-01 4.38E-03 4.50E-03 K-40 2.15E-02 2.26E-03 2.62E-03 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles]Sample ID: 178079 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.OOE-02 O.OOE+00 7.OOE-02 Cs-134 <5.OOE-02 O.OOE+00 5.OOE-02 Cs-1 37 <6.OOE-02 O.OOE+00 6.OOE-02 Be-7 1.06E-01 2.23E-02 Sample ID: 185458 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.63E-02 2.20E-03 1.38E-03 Sample ID: 186476 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.68E-02 2.18E-03 1.26E-03 Sample ID: 186492 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.03E-02 2.02E-03 1.50E-03 Sample ID: 185509 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.76E-02 2.29E-03 1.53E-03 Sample ID: 185526 Sample Dates: 214/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.66E-02 2.26E-03 1.47E-03 Sample ID: 185543 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.13E-02 2.02E-03 1.43E-03 Sample ID: 185559 Sample Dates: 211812013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.73E-02 1.88E-03 1.43E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 9 of 120 Duke Energy Annual Report -Appendix E [ 13339 Hagers Ferry Road-I Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles ]Sample ID: 185576 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.70E-02 1.84E-03 1.38E-03 Sample ID: 185593 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.56E-02 1.78E-03 1.37E-03 Sample ID: 185610 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.42E-02 1.77E-03 1.48E-03 Sample ID: 185627 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.35E-02 2.10E-03 1.43E-03 Sample ID: 185644 Sample Dates: 3124/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.21E-02 2.25E-03 1.72E-03 Sample ID: 185661 Sample Dates: 4/112013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.54E-02 1.65E-03 1.30E-03 Sample ID: 256281 Sample Dates: 4/1/2013 -41812013 Nuclide Activity Sigma Error (1) LLD Beta 1.81E-02 1.28E-03 2.67E-03 Sample ID: 266344 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.59E-02 1.25E-03 2.74E-03 Sample ID: 257134 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.51 E-02 1.24E-03 2.85E-03 Sample ID: 257240 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.27E-02 1.12E-03 2.52E-03 Sample ID: 257287 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.24E-03 1.08E-03 2.95E-03 Sample ID: 257734 Sample Dates: 5/6/2013 -6113/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.52E-02 1.30E-03 2.89E-03 Sample ID: 257978 Sample Dates: 5/13/2013

-5/2012013 Nuclide Activity Sigma Error (1) LLD Beta 2.41 E-02 1.37E-03 2.50E-03 Sample ID: 258213 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.11 E-02 1.29E-03 3.21E-03 Sample ID: 258560 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.31 E-02 1.09E-03 2.46E-03 Sample ID: 259030 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.01E-02 1.14E-03 2.83E-03 Sample ID: 259578 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.37E-02 1.12E-03 2.48E-03 Sample ID: 260212 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.06E-02 1.36E-03 3.56E-03 Sample ID: 260672 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 4.68E-03 9.59E-04 2.74E-03 Sample ID: 261635 Sample Dates: 7/812013 -7115/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.58E-03 1.o8E-03 2.78E-03 Sample ID: 261958 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.54E-02 1.21E-03 2.48E-03 Sample ID: 262137 Sample Dates: 7/16/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.40E-03 1.15E-03 2.94E-03 Sample ID: 262734 Sample Dates: 4/1/2013 -711/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.62E-02 O.OOE+00 2.62E-02 Cs-134 <1.43E-04 O.OE+00 1.43E-04 Cs-137 <1.59E-04 O.OOE+00 1.59E-04 Be-7 1.27E-01 2.74E-03 2.37E-03 K-40 2.14E-02 1.29E-03 1.55E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34.

E EnRad Laboratories Appendix E -Page 10 of 120 Duke Energy Annual Report -Appendix E g 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCilm3 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles ]Sample ID: 263210 Sample Dates: 7122/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.57E-02 1.26E-03 2.74E-03 Sample ID: 263425 Sample Dates: 7/2912013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.79E-02 1.40E-03 3.12E-03 Sample ID: 264080 Sample Dates: 8/6/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.39E-02 1.32E-03 3.16E-03 Sample ID: 265214 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.35E-02 1.08E-03 2.26E-03 Sample ID: 265534 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.29E-02 1.34E-03 3.19E-03 Sample ID: 267209 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.49E-02 1.42E-03 2.70E-03 Sample ID: 267679 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.69E-02 1.72E-03 3.41E-03 Sample ID: 268519 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.98E-02 1.60E-03 2.90E-03 Sample ID: 269689 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.06E-02 1.44E-03 2.94E-03 Sample ID: 270784 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.55E-02 1.30E-03 2.92E-03 Sample ID: 271506 Sample Dates: 9/30/2013

-10/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.03E-02 3.56E-03 8.87E-03 Sample ID: 272116 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.56E-02 2.88E-03 7.OOE-03 Sample ID: 272511 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.64E-02 1.30E-03 2.78E-03 Sample ID: 272662 Sample Dates: 7/1/2013 -9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.86E-02 O.OOE+00 2.86E-02 Cs-134 <2.70E-04 0.OOE+00 2.70E-04 Cs-137 <2.89E-04 0.OOE+00 2.89E-04 Be-7 1.10E-01 4.67E-03 4.71E-03 K-40 2.34E-02 2.21 E-03 2.60E-03 Sample ID: 272899 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.45E-02 1.53E-03 3.05E-03 Sample ID: 273987 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Beta Sample ID: 274437 Sample Dates: 11/4/2013-1111/2013 Nuclide Beta Sample ID: 274962 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Beta Sample ID: 276505 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Beta Sample ID: 278770 Sample Dates: 1112512013

-12/2/2013 Nuclide Beta Activity Sigma Error (1) LLD 2.61 E-02 1.56E-03 2.99E-03 Activity Sigma Error (1) LLD 1.44E-02 1.27E-03 2.95E-03 Activity Sigma Error (1) LLD 1.79E-02 1.36E-03 2.81 E-03 Activity Sigma Error (1) LLD 1.64E-02 1.33E-03 2.88E-03 Activity Sigma Error (1) LLD 1.66E-02 1.30E-03 2.78E-03 Sample ID: 278841 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Bea 1.53E-02 1.32E-03 2.99E-03 Sample ID: 2790811 Sample Dates: 12/9/2013

.12/16/2013 Nuclide Activity Sigma Error (1) LID Beta 1.96E-02 1.38E-03 2.79E-03 _______Sample ID: 279709 Sample Dates: 12/16/2013

-12/23/2013 Nuclidle Activity Sigma Error (1) LID___Beta _-1.77E-02 1.36E-03 2.88E-03 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Duke Energy Annual Report -Appendix E "ED .13339 Hagers Ferry Road k EHuntersville, North Carolina 28078 Appendix E -Page 11 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles ]Sample ID: 280198 Sample Dates: 12123/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.73E-02 1.36E-03 2.96E-03 Sample ID: 280614 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-1 34 <3.42E-04 0.OOE+00 3.42E-04 Cs-137 <3.38E-04 0.OOE+00 3.38E-04 Be-7 1.02E-01 5.28E-03 4.35E-03 K-40 6.67E-03 2.55E-03 4.77E-03 Sample Point 5 [INDICATOR

-ENE @ 0.9 miles]Sample ID: 178080 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.OOE-02 O.OOE+00 7.OOE-02 Cs-134 <5.OOE-02 0.OOE+00 5.OOE-02 Cs-1 37 <6.OOE-02 0.OOE+00 6.OOE-02 Be-7 1.04E-01 2.27E-02 Sample ID: 185459 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.73E-02 2.25E-03 1.39E-03 Sample ID: 185476 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.34E-02 2.06E-03 1.27E-03 Sample ID: 185493 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.91E-02 1.98E-03 1.51E-03 Sample ID: 185510 Sample Dates: 1128/2013

-112812013 Nuclide Activity Sigma Error (1) LLD Beta 3.07E-02 2.40E-03 1.54E-03 Sample ID: 185527 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.40E-02 2.18E-03 1.49E-03 Sample ID: 185544 Sample Dates: 2/1112013

-2/1112013 Nuclide Activity Sigma Error (1) LLD Beta 2.11 E-02 2.02E-03 1.44E-03 Sample ID: 185560 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.44E-02 1.71E-03 1.38E-03 Sample ID: 185577 Sample Dates: 2/25/2013 2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.63E-02 1.81 E-03 1.39E-03 Sample ID: 185594 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.43E-02 1.71E-03 1.37E-03 Sample ID: 185611 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.46E-02 1.78E-03 1.47E-03 Sample ID: 185628 Sample Dates: 311812013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.53E-02 2.28E-03 1.55E-03 Sample ID: 185645 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.15E-02 2.34E-03 1.86E-03 Sample ID: 185662 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.54E-02 1.74E-03 1.43E-03 Sample ID: 256282 Sample Dates: 4/1/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.84E-02 1.37E-03 2.94E-03 Sample ID: 256345 Sample Dates: 418/2013 -4115/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.43E-02 1.24E-03 2.84E-03 Sample ID: 257135 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.53E-02 1.34E-03 3.18E-03 Sample ID: 257241 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.33E-02 1.14E-03 2.55E-03 Sample ID: 257288 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.61E-03 1.15E-03 3.08E-03 Sample ID: 257735 Sample Dates: 5/6/2013 -6/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.57E-02 1.29E-03 2.83E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Duke Energy Annual Report -Appendix E " 13339 Hagers Ferry Road--~ Huntersville, North Carolina 28078 Appendix E -Page 12 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles ]Sample ID: 257979 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Beta Sample ID: 258214 Sample Dates: 5/20/2013

-512612013 Nuclide Activity Sigma Error (1) LLD 2.50E-02 1.51 E-03 2.83E-03 Activity Sigma Error (1) LLD Beta 1.22E-02 1.37E-03 3.38E-03 Sample ID: 258561 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.56E-02 1.19E-03 2.61 E-03 Sample ID: 259031 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.18E-02 1.22E-03 2.93E-03 Sample ID: 259579 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.44E-02 1.16E-03 2.53E-03 Sample ID: 260213 Sample Dates: 6/18/2013

-6124/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.32E-02 1.42E-03 3.53E-03 Sample ID: 260673 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.61E-03 1.06E-03 2.79E-03 Sample ID: 261636 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.11E-03 1.12E-03 2.88E-03 Sample ID: 261960 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.38E-02 1.18E-03 2.51E-03 Sample ID: 262138 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.52E-03 1.17E-03 2.99E-03 Sample ID: 262735 Sample Dates: 4/1/2013 -7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.56E-02 0.OOE+00 3.56E-02 Cs-1 34 <3.38E-04 0.00E+00 3.38E-04 Cs-1 37 <4.30E-04 0.00E+00 4.30E-04 Be-7 1.38E-01 6.69E-03 5.96E-03 K-40 1.70E-02 2.53E-03 1.02E-03 Sample ID: 263211 Sample ID: 263426 Sample Dates: 7/22/2013

-7/29/2013 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.75E-02 1.35E-03 2.88E-03 Nuclide Activity Sigma Error (1) LLD Beta 2.02E-02 1.45E-03 3.10E-03 Sample ID: 264081 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.41 E-02 1.33E-03 3.22E-03 Sample ID: 265215 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.98E-03 9.89E-04 2.26E-03 Sample ID: 265535 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.18E-02 1.32E-03 3.23E-03 Sample ID: 267210 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.73E-02 1.47E-03 2.73E-03 Sample ID: 267680 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.73E-02 1.73E-03 3.44E-03 Sample ID: 268520 Sample Dates: 919/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.75E-02 1.57E-03 2.94E-03 Sample ID: 269690 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.13E-02 1.47E-03 2.98E-03 Sample ID: 270785 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.85E-02 1.49E-03 3.26E-03 Nuclide Activity Sigma Error (1) LLD Beta 2.48E-02 1.50E-03 2.77E-03 Sample ID: 271507 Sample Dates: 9130/2013

-10/7/2013 Sample ID: 272117 Sample Dates: 10/712013

-10/14/2013 Nuclide Beta Activity Sigma Error (1)9.62E-03 1.08E-03 LLD 2.61 E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 13 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles ]Sample ID: 272512 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1)Beta 1.94E-02 1.37E-03 LLD 2.78E-03 Sample ID: 272663 Sample Dates: 7/1/2013 -9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.15E-02 O.OOE+00 3.15E-02 Cs-134 <3.09E-04 0.OOE+00 3.09E-04 Cs-1 37 <2.98E-04 0.OOE+00 2.98E-04 Be-7 1.08E-01 5.60E-03 5.08E-03 K-40 1.OOE-02 1.83E-03 2.53E-03 Sample ID: 272900 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.48E-02 1.53E-03 3.03E-03 Sample ID: 273988 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.64E-02 1.57E-03 3.02E-03 Sample ID: 274438 Sample Dates: 11/412013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.68E-02 1.34E-03 2.98E-03 Sample ID: 274963 Sample Dates: 11/11/2013-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.47E-02 1.26E-03 2.76E-03 Sample ID: 276506 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.73E-02 1.35E-03 2.88E-03 Sample ID: 278771 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.60E-02 1.27E-03 2.74E-03 Sample ID: 278842 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1)Beta 1.60E-02 1.33E-03 Sample ID: 279082 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1)Beta 1.90E-02 1.35E-03 Sample ID: 279710 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1)LLD 2.96E-03 LLD 2.77E-03 LLD Beta 1.56E-02 1.31 E-03 2.89E-03 Sample ID: 280199 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.64E-02 1.34E-03 2.96E-03 Sample ID: 280615 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-1 34 <2.51 E-04 0.00E+00 2.51E-04 Cs-1 37 <3.OOE-04 0.OOE+00 3.00E-04 Be-7 9.12E-02 4.91 E-03 3.98E-03 K-40 8.44E-03 1.66E-03 3.00E-03 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles]Sample ID: 178081 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.OOE-02 O.OOE+00 7.OOE-02 Cs-i34 <5.OOE-02 O.OOE+00 5.00E-02 Cs-137 <6.OOE-02 O.OOE+00 6.OOE-02 Be-7 1.25E-01 2.48E-02 K-40 2.56E-02 1.29E-02 Bi-214 1.54E-03 1.13E-03 Sample ID: 185460 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.57E-02 2.17E-03 1.36E-03 Sample ID: 185477 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.36E-02 2.05E-03 1.25E-03 Sample ID: 185494 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.05E-02 2.02E-03 1.48E-03 Sample ID: 185511 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.98E-02 2.35E-03 1.52E-03 Sample ID: 185528 Sample Dates: 2/4/2013 -2/412013 Nuclide Activity Sigma Error (1) LLD Beta 2.69E-02 2.25E-03 1.45E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories En .13339 Hagers Ferry Road S- Huntersville, North Carolina 28078 Appendix E -Page 14 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles ]Sample ID: 185545 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.21 E-02 2.04E-03 1.42E-03 Sample ID: 185561 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.781-02 1.89E-03 1.42E-03 Sample ID: 185578 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.87E-02 1.97E-03 1.46E-03 Sample ID: 185595 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.69E-02 1.84E-03 1.38E-03 Sample ID: 185612 Sample Dates: 3/11/2013

-3/1112013 Nuclide Activity Sigma Error (1) LLD Beta 1.60E-02 1.89E-03 1.53E-03 Sample ID: 185629 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.25E-02 2.00E-03 1.34E-03 Sample ID: 185646 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.93E-02 2.07E-03 1.63E-03 Sample ID: 185663 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.56E-02 1.60E-03 1.24E-03 Sample ID: 256283 Sample Dates: 4/1/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.24E-02 1.46E-03 2.91E-03 Sample ID: 256346 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.38E-02 1.16E-03 2.63E-03 Sample ID: 257136 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.30E-02 1.16E-03 2.75E-03 Sample ID: 257243 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.32E-02 1.26E-03 2.95E-03 Sample ID: 257289 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.65E-03 1.07E-03 2.78E-03 Sample ID: 257736 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.58E-02 1.32E-03 2.90E-03 Sample ID: 257980 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.31 E-02 1.35E-03 2.48E-03 Sample ID: 258215 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.53E-02 1.45E-03 3.38E-03 Sample ID: 258562 Sample Dates: 5/26/2013

-6/312013 Nuclide Activity Sigma Error (1) LLD Beta 1.39E-02 1.20E-03 2.75E-03 Sample ID: 259032 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.05E-02 1.08E-03 2.61 E-03 Sample ID: 259580 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.33E-02 1.05E-03 2.27E-03 Sample ID: 260214 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.08E-02 1.27E-03 3.25E-03 Sample ID: 260674 Sample Dates: 7/11/2013

-7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.26E-03 9.73E-04 2.522-03 Sample ID: 261637 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.60E-03 9.81E-04 2.54E-03 Sample ID: 261962 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.45E-02 1.12E-03 2.26E-03 Sample ID: 262139 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 6.44E-03 9.87E-04 2.69E-03 Sample ID: 262736 Sample Dates: 4/112013 -7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.67E-02 0.00E+00 2.67E-02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -, EnRad Laboratories Appendix E -Page 15 of 120 Duke Energy Annual Report -Appendix E l 13339 Hagers Ferry Road-~ Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles ]Sample ID: 262736 Sample Dates: 4/11/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD Cs-134 <2.89E-04 O.OOE+00 2.89E-04 Cs-1 37 <3.54E-04 O.OOE+00 3.54E-04 Be-7 1.31E-01 5.14E-03 4.83E-03 K-40 1.36E-02 2.27E-03 4.17E-03 Sample ID: 263212 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.34E-02 1.16E-03 2.60E-03 Sample ID: 263427 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.71E-02 1.30E-03 2.85E-03 Sample ID: 264082 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.20E-02 1.18E-03 2.88E-03 Sample ID: 265216 Sample Dates: 8112/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.10E-02 9.54E-04 2.06E-03 Sample ID: 265536 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.31E-02 1.26E-03 2.91E-03 Sample ID: 267211 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.35E-02 1.31 E-03 2.46E-03 Sample ID: 267681 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.55E-02 1.59E-03 3.11 E-03 Sample ID: 268521 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.61 E-02 1.44E-03 2.64E-03 Sample ID: 269691 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.07E-02 1.36E-03 2.70E-03 Sample ID: 270786 Sample Dates: 9/23/2013

-9130/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.62E-02 1.23E-03 2.66E-03 Sample ID: 271508 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.27E-02 1.36E-03 2.49E-03 Sample ID: 272118 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.12E-03 1.01E-03 2.45E-03 Sample ID: 272513 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.61 E-02 1.23E-03 2.56E-03 Sample ID: 272664 Sample Dates: 7/1/2013 -9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.56E-02 0.00E+00 6.56E-02 Cs-1 34 <5.42E-04 0.00E+00 5.42E-04 Cs-1 37 <5.89E-04 0.00E+00 5.89E-04 Be-7 1.25E-01 6.47E-03 8.94E-03 K-40 1.74E-02 3.36E-03 6.12E-03 Sample ID: 272901 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.39E-02 1.43E-03 2.79E-03 Sample ID: 273989 Sample Dates: 10/2812013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.80E-02 1.52E-03 2.79E-03 Sample ID: 274439 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.41 E-02 1.22E-03 2.79E-03 Sample ID: 274964 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.581-02 1.23E-03 2.58E-03 Sample ID: 276507 Sample Dates: 11/18/2013

-11/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.39E-02 1.20E-03 2.69E-03 Sample ID: 278772 Sample Dates: 11/25/2013

-1212/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.59E-02 1.22E-03 2.57E-03 Sample ID: 278843 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.57E-02 1.27E-03 2.79E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 ., EnRad Laboratories Appendix E -Page 16 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road ,--- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles ]Sample ID: 279083 Sample Dates: 121912013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.07E-02 1.34E-03 2.61 E-03 Sample ID: 279711 Sample Dates: 12/16/2013

-12/2312013 Nuclide Activity Sigma Error (1) LLD Beta 1.42E-02 1.21E-03 2.68E-03 Sample ID: 280200 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.49E-02 1.25E-03 2.77E-03 Sample ID: 280617 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-134 <2.32E-04 0.OOE+00 2.32E-04 Cs-137 <3.41E-04 0.00E+00 3.41E-04 Be-7 8.51 E-02 4.63E-03 4.08E-03 K-40 7.29E-03 2.09E-03 3.94E-03 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles]Sample ID: 178082 Sample Dates: 2/18/2013

-2/18/2013 Nuclide 1-131 Cs-134 Cs-1i37 Be-7 K-40 Sample ID: 185461 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Beta Activity Sigma Error (1)<7.OOE-02 0.OOE+00<5.OOE-02 0.OOE+00<6.00E-02 0.OOE+00 1.16E-01 2.75E-02 4.46E-02 2.06E-02 Activity Sigma Error (1)2.65E-02 2.19E-03 LLD 7.00E-02 5.00E-02 6.00E-02 LLD 1.36E-03 Sample ID: 185478 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.42E-02 2.07E-03 1.25E-03 Sample ID: 185495 Sample Dates: 1/21/2013

-1/2112013 Nuclide Activity Sigma Error (1) LLD Beta 2.06E-02 2.01E-03 1.47E-03 Sample ID: 185512 Sample Dates: 1/2812013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.73E-02 2.25E-03 1.50E-03 Sample ID: 186529 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.46E-02 2.55E-03 1.92E-03 Sample ID: 185562 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.13E-02 2.08E-03 1.47E-03 Sample ID: 185679 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.72E-02 1.93E-03 1.49E-03 Sample ID: 185596 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.72E-02 1.88E-03 1.42E-03 Sample ID: 185613 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.61 E-02 1.87E-03 1.50E-03 Sample ID: 185630 Sample Dates: 3118/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.35E-02 2.16E-03 1.49E-03 Sample ID: 185647 Sample Dates: 3/2412013

-3/2412013 Nuclide Activity Sigma Error (1) LLD Beta 1.83E-02 2.18E-03 1.83E-03 Sample ID: 185664 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.75E-02 1.82E-03 1.41E-03 Sample ID: 256284 Sample Dates: 4/112013 -4/8/2013 Nuclide Beta Sample ID: 256347 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Beta Sample ID: 257137 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Beta Activity Sigma Error (1)1.77E-02 1.32E-03 Activity Sigma Error (1)1.15E-02 1.16E-03 LLD 2.81 E-03 LLD 2.79E-03 Activity 1.28E-02 Sigma Error(1) LLD 1.23E-03 3.02E-03 Sample ID: 257245 Sample Dates: 4/151/2013

-4/22/2013 Nuclide Beta Activity Sigma Error (1) LLD 1.47E-02 1.25E-03 2.78E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories Efl r 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 17 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 257290 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.52E-03 1.11 E-03 2.96E-03 Sample ID: 257737 Sample Dates: 5/612013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.44E-02 1.22E-03 2.70E-03 Sample ID: 257981 Sample Dates: 5/13/2013

-5120/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.47E-02 1.46E-03 2.71 E-03 Sample ID: 258216 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.16E-02 1.29E-03 3.18E-03 Sample ID: 268563 Sample Dates: 5126/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.24E-02 1.09E-03 2.51E-03 Sample ID: 259033 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.03E-02 1.13E-03 2.78E-03 Sample ID: 259581 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.43E-02 1.12E-03 2.40E-03 Sample ID: 260215 Sample Dates: 6/1812013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.87E-03 1.27E-03 3.33E-03 Sample ID: 260675 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.72E-03 1.01E-03 2.62E-03 Sample ID: 261638 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.53E-03 1.10E-03 2.85E-03 Sample ID: 261966 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.27E-02 1.12E-03 2.43E-03 Sample ID: 262140 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.67E-03 1.02E-03 2.69E-03 Sample ID: 262737 Sample Dates: 4/1/2013 -7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.88E-02 0.00E+00 6.88E-02 Cs-134 <3.85E-04 0.00E+00 3.85E-04 Cs-137 <4.06E-04 0.00E+00 4.06E-04 Be-7 1.29E-01 4.64E-03 6.28E-03 K-40 2.62E-02 2.20E-03 4.85E-03 Sample ID: 263213 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.53E-02 1.25E-03 2.74E-03 Sample ID: 263428 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.88E-02 1.34E-03 2.86E-03 Sample ID: 264083 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.35E-02 1.17E-03 2.53E-03 Sample ID: 265217 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.14E-02 9.96E-04 2.15E-03 Sample ID: 265637 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.16E-02 1.26E-03 3.06E-03 Sample ID: 267212 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.29E-02 1.33E-03 2.56E-03 Sample ID: 267682 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.73E-02 1.71 E-03 3.36E-03 Sample ID: 268522 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.85E-02 1.54E-03 2.79E-03 Sample ID: 269692 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.29E-02 1.45E-03 2.81E-03 Sample ID: 270787 Sample Dates: 9123/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.68E-02 1.29E-03 2.80E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 18 of 120 Duke Energy Annual Report -Appendix E [ 13339 Hagers Ferry Road-- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCilm3 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 271609 Sample Dates: 9/30/2013

-1017/2013 Nuclide Activity Beta 2.37E-02 Sample ID: 272119 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Beta 9.62E-03 Sample ID: 272514 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1)1 48E-03 Sigma Error (1)1 02E-03 Sigma Error (1)LLD 2.79E-03 LLD 2.41 E-03 LLD Beta 1.90E-02 1.34E-03 2.69E-03 Sample ID: 272665 Sample Dates: 7/11/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.98E-02 0.OOE+00 6.98E-02 Cs-134 <5.62E-04 0.OOE+00 5.62E-04 Cs-137 <5.77E-04 O.OOE+00 5.77E-04 Be-7 1.15E-01 7.12E-03 8.80E-03 K-40 2.82E-02 4.18E-03 7.51 E-03 Sample ID: 272902 Sample Dates: 10121/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.29E-02 1.46E-03 2.95E-03 Sample ID: 273990 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.75E-02 1.56E-03 2.92E-03 Sample ID: 274440 Sample Dates: 11/4/2013-11/11/2013 Nuclide Activity Beta 1.38E-02 Sigma Error ) LLD 1.25E-03 2.92E-03 Sample ID: 274965 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1)Beta 1.81E-02 1.32E-03 LLD 2.67E-03 Sample ID: 276508 Sample Dates: 11/18/2013

-11125/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.84E-02 1.35E-03 2.81 E-03 Sample ID: 278773 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.78E-02 1.31E-03 2.72E-03 Sample ID: 278844 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.66E-02 1.32E-03 2.89E-03 Sample ID: 279084 Sample Dates: 12/912013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.02E-02 1.36E-03 2.70E-03 Sample ID: 279712 Sample Dates: 12116/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.60E-02 1.27E-03 2.74E-03 Sample ID: 280201 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.99E-02 1.42E-03 2.94E-03 Sample ID: 280620 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-134 <2.93E-04 0.OOE+00 2.93E-04 Cs-137 <2.43E-04 0.OOE+00 2.43E-04 Be-7 8.72E-02 4.76E-03 5.23E-03 K-40 8.41 E-03 1.88E-03 3.38E-03 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles]Sample ID: 178083 Sample Dates: 2118/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.OOE-02 O.OOE+00 7.OOE-02 Cs-1 34 <5.OOE-02 O.OOE+00 5.OOE-02 Cs-i 37 <6.OOE-02 0.OOE+00 6.OOE-02 Be-7 9.56E-02 2.22E-02 K-40 6.67E-02 1.99E-02 Pb-212 1.42E-03 1.20E-03 Sample ID: 185462 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.86E-02 2.27E-03 1.36E-03 Sample ID: 185479 Sample Dates: 1114/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.60E-02 2.12E-03 1.23E-03 Sample ID: 185496 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.82E-02 1.94E-03 1.51E-03 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 19 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ]Sample ID: 185513 Sample Dates: 1/2812013

-112812013 Nuclide Beta Sample ID: 185530 Sample Dates: 2/4/2013 -2/412013 Nuclide Beta Sample ID: 185546 Sample Dates: 2/11/2013

-211112013 Nuclide Beta Sample ID: 185563 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Beta Sample ID: 185580 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Beta Sample ID: 185597 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Beta Sample ID: 185614 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Beta Sample ID: 185631 Sample Dates: 311812013

-3/118/2013 Nuclide Beta Sample ID: 185648 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Beta Sample ID: 185665 Sample Dates: 4/11/2013

-411/2013 Nuclide Activity Sigma Error (1) LLD 2.79E-02 2.30E-03 1.53E-03 Activity Sigma Error (1) LLD 2.50E-02 2.18E-03 1.45E-03 Activity Sigma Error (1) LLD 2.08E-02 1.98E-03 1.41 E-03 Activity Sigma Error (1) LLD 1.91 E-02 1.96E-03 1.44E-03 Activity Sigma Error (1) LLD 1.98E-02 1.99E-03 1.43E-03 Activity Sigma Error (1) LLD 1.63E-02 1.85E-03 1.43E-03 Activity Sigma Error (1) LLD 1.57E-02 2.OOE-03 1.69E-03 Activity Sigma Error (1) LLD 2.43E-02 2.19E-03 1.49E-03 Activity 2.51 E-02 Activity Beta 1.69E-02 Sample ID: 256285 Sample Dates: 4/11/2013

-4/8/2013 Nuclide Activity Beta 1.96E-02 Sample ID: 256348 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Beta 1.45E-02 Sigma Error (1) LLD 2.46E-03 1.83E-03 Sigma Error(1) LLD 1.76E-03 1.37E-03 Sigma Error (1) LLD 1.37E-03 2.82E-03 Sigma Error (1) LLD 1.21E-03 2.72E-03 Sample ID: 257138 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.31 E-02 1.24E-03 3.03E-03 Sample ID: 257242 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.40E-02 1.26E-03 2.89E-03 Sample ID: 257291 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.46E-03 1.09E-03 2.96E-03 Sample ID: 257738 Sample Dates: 516/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.47E-02 1.21E-03 2.66E-03 Sample ID: 267982 Sample Dates: 5/13/2013

-6/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.53E-02 1.48E-03 2.73E-03 Sample ID: 258217 Sample Dates: 5/2012013

-6/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.38E-02 1.36E-03 3.23E-03 _ _ _ _Sample ID: 258564 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.32E-02 1.11E-03 2.53E-03 Sample ID: 259034 Sample Dates: 6/3/2013 -6/1012013 Nuclide Activity Sigma Error (1) LLD Beta 8.90E-03 1.08E-03 2.75E-03 Sample ID: 259582 Sample Dates: 6/10/2013

-6118/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.21E-02 1.06E-03 2.396-03 Sample ID: 260216 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.01E-02 1.30E-03 3.40E-03 Sample ID: 260676 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1)Beta 6.89E-03 1.00E-03 Sample ID: 261639 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1)Beta 7.18E-03 1.01E-03 LLD 2.66E-03 LLD 2.69E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories En 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 20 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report- 2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ]Sample ID: 261961 Sample Dates: 6/2412013

-7/112013 Nuclide Activity Sigma Error (1) LLD Beta 1.50E-02 1.18E-03 2.41E-03 Sample ID: 262141 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 7.74E-03 1.07E-03 2.85E-03 Sample ID: 262738 Sample Dates: 4/1/2013 -7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.18E-02 0.00E+00 2.18E-02 Cs-1 34 <2.34E-04 0.OOE+00 2.34E-04 Cs-1 37 <2.69E-04 0.OOE+00 2.69E-04 Be-7 1.30E-01 4.79E-03 3.46E-03 K-40 1.25E-02 1.74E-03 2.28E-03 Sample ID: 263214 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.40E-02 1.20E-03 2.67E-03 Sample ID: 263429 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.86E-02 1.38E-03 3.00E-03 Sample ID: 264084 Sample Dates: 8/512013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.31E-02 1.27E-03 3.06E-03 Sample ID: 265218 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.05E-02 9.78E-04 2.18E-03 Sample ID: 265538 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.27E-02 1.30E-03 3.09E-03 Sample ID: 267213 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.37E-02 1.37E-03 2.62E-03 Sample ID: 267683 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.67E-02 1.70E-03 3.37E-03 Sample ID: 268523 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.78E-02 1.52E-03 2.78E-03 Sample ID: 269693 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.15E-02 1.42E-03 2.84E-03 Sample ID: 270788 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.63E-02 1.29E-03 2.83E-03 Sample ID: 271510 Sample Dates: 9/30/2013

-1017/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.33E-02 1.42E-03 2.64E-03 Sample ID: 272120 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.54E-03 1.07E-03 2.59E-03 Sample ID: 272516 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.75E-02 1.31 E-03 2.71E-03 Sample ID: 272666 Sample Dates: 7/1/2013 -9/3012013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.95E-02 O.OOE+00 6.95E-02 Cs-1 34 <5.83E-04 0.00E+00 5.83E-04 Cs-1 37 <5.66E-04 0.OOE+00 5.66E-04 Be-7 1.26E-01 7.35E-03 8.89E-03 K-40 2.77E-02 3.98E-03 6.60E-03 Sample ID: 272903 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.33E-02 1.49E-03 3.OOE-03 Sample ID: 273991 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.87E-02 1.60E-03 2.96E-03 Sample ID: 274441 Sample Dates: 11/4/2013

-1111/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.55E-02 1.30E-03 2.94E-03 Sample ID: 274966 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.63E-02 1.30E-03 2.73E-03 Sample ID: 276609 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.80E-02 1.34E-03 2.82E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 21 of 120 Duke Energy Annual Report -Appendix E J. 13339 Hagers Ferry Road k EHuntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ]Sample ID: 278774 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.81E-02 1.35E-03 2.82E-03 Sample ID: 278845 Sample Dates: 1212/2013

-1219/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.79E-02 1.34E-03 2.87E-03 Sample ID: 279085 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.19E-02 1.42E-03 2.76E-03 Sample ID: 279713 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.70E-02 1.34E-03 2.86E-03 Sample ID: 280202 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.62E-02 1.33E-03 2.93E-03 Sample ID: 280616 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-134 <2.46E-04 0.OOE+00 2.46E-04 Cs-1 37 <2.28E-04 O.OOE+00 2.28E-04 Be-7 8.68E-02 5.08E-03 4.43E-03 K-40 8.01 E-03 2.23E-03 3.92E-03 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles ]Sample ID: 178084 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.OOE-02 O.OOE+00 7.OOE-02 Cs-134 <5.OOE-02 0.00E+00 5.OOE-02 Cs-137 <6.00E-02 0.OOE+00 6.O0E-02 Be-7 1.08E-01 2.20E-02 Ra-226 1.07E-02 9.44E-03 Sample ID: 185463 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.83E-02 2.26E-03 1.36E-03 Sample ID: 185480 Sample Dates: 111412013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.39E-02 2.05E-03 1.25E-03 Sample ID: 185497 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.97E-02 1.99E-03 1.48E-03 Sample ID: 185514 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.99E-02 2.35E-03 1.51E-03 Sample ID: 185531 Sample Dates: 2/4/2013 -214/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.47E-02 2.18E-03 1.46E-03 Sample ID: 185647 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.15E-02 2.01E-03 1.41E-03 Sample ID: 185564 Sample Dates: 2/1812013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.82E-02 1.90E-03 1.42E-03 Sample ID: 186581 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.89E-02 1.93E-03 1.40E-03 Sample ID: 185598 Sample Dates: 3/412013 3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.67E-02 1.84E-03 1.39E-03 Sample ID: 186616 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.71E-02 1.86E-03 1.44E-03 Sample ID: 185632 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.40E-02 2.15E-03 1.45E-03 Sample ID: 185649 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.25E-02 2.31E-03 1.77E-03 Sample ID: 185666 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.78E-02 1.78E-03 1.35E-03 Sample ID: 256286 Sample Dates: 4/1/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.80E-02 1.31 E-03 2.76E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 --EnRad Laboratories Appendix E -Page 22 of 120 Duke Energy Annual Report -Appendix E n 13339 Hagers Ferry Road-nD -Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCilm3 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles ]Sample ID: 256349 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.46E-02 1.20E-03 2.67E-03 Sample ID: 257139 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.26E-02 1.22E-03 2.96E-03 Sample ID: 257244 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.46E-02 1.26E-03 2.83E-03 Sample ID: 257292 Sample Dates: 4/29/2013

-6/6/2013 Nuclide Activity Sigma Error (1) LLD Beta 9.06E-03 1.11 E-03 2.91E-03 Sample ID: 257739 Sample Dates: 5/6/2013 -6/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.44E-02 1.19E-03 2.63E-03 Sample ID: 257983 Sample Dates: 5113/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.78E-02 1.53E-03 2.71 E-03 Sample ID: 258218 Sample Dates: 5/20/2013

-5/2612013 Nuclide Activity Sigma Error (1) LLD Beta 1.25E-02 1.31 E-03 3.16E-03 Sample ID: 258565 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.21E-02 1.05E-03 2.42E-03 Sample ID: 259035 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.87E-03 1.08E-03 2.73E-03 Sample ID: 269583 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.47E-02 1.10E-03 2.34E-03 Sample ID: 260217 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.06E-02 1.29E-03 3.35E-03 Sample ID: 260677 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD Beta 5.84E-03 9.44E-04 2.57E-03 Sample ID: 261640 Sample Dates: 7/8/2013 -7/1512013 Nuclide Activity Sigma Error (1) LLD Beta 7.66E-03 1.01E-03 2.63E-03 Sample ID: 261963 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.27E-02 1.09E-03 2.33E-03 Sample ID: 262142 Sample Dates: 7/1512013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 8.77E-03 1.08E-03 2.77E-03 Sample ID: 262739 Sample Dates: 4/11/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.89E-02 0.00E+00 2.89E-02 Cs-1 34 <2.79E-04 0.00E+00 2.79E-04 Cs-1 37 <4.26E-04 0.00E+00 4.26E-04 Be-7 1.34E-01 6.28E-03 5.66E-03 K-40 1.48E-02 2.83E-03 3.72E-03 Sample ID: 263215 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.60E-02 1.21 E-03 2.57E-03 Sample ID: 263430 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.89E-02 1.37E-03 2.94E-03 Sample ID: 264085 Sample Dates: 8/15/2013

-8/12/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.58E-02 1.31E-03 3.02E-03 Sample ID: 265219 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.13E-02 9.81E-04 2.12E-03 Sample ID: 265539 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.37E-02 1.31E-03 3.00E-03 Sample ID: 267214 Sample Dates: 8/2612013

-9/3/2013 Nuclide Beta Sample Dates: 9/3/2013 -9/9/2013 Nuclide Beta Activity Sigma Error (1) LID 2.59E-02 1.38E-03 2.54E-03 _____Sample ID: 267684 Activity 2.74E-02 Sigma Error Cl) LLD 1.67E-03 3.23E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories f [ .13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 23 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles ]Sample ID: 268524 Sample Dates: 9/9/2013 -9/16/2013 Sample ID: 269694 Sample Dates: 9/16/2013

-9/23/2013 Sample ID: 270789 Sample Dates: 9/23/2013

-9/30/2013 Sample ID: 271511 Sample Dates: 9/30/2013

-10/7/2013 Sample ID: 272121 Sample Dates: 1017/2013

-10/14/2013 Sample ID: 272516 Sample Dates: 10/14/2013

-10/21/2013 Sample ID: 272667 Sample Dates: 7/1/2013 -9/30/2013 Sample ID: 272904 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.90E-02 1.53E-03 2.74E-03 Nuclide Activity Sigma Error (1) LLD Beta 2.05E-02 1.38E-03 2.77E-03 Nuclide Activity Sigma Error (1) LLD Beta 1.47E-02 1.24E-03 2.78E-03 Nuclide Activity Sigma Error (1) LLD Beta 2.71 E-02 1.48E-03 2.58E-03 Nuclide Activity Sigma Error (1) LLD Beta 9.98E-03 1.06E-03 2.52E-03 Nuclide Activity Sigma Error (1) LLD Beta 1.861-02 1.31E-03 2.63E-03 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Activity<6.58E-02<5.71 E-04<6.33E-04 1.20E-01 2.01 E-02 Sigma Error(1)0.00E+00 0.0OE+00 O.OOE+00 7.73E-03 3.87E-03 LLD 6.58E-02 5.71 E-04 6.33E-04 1.OOE-02 5.80E-03 Nuclide Activity Sigma Error (1) LLD Beta 2.40E-02 1.47E-03 2.91E-03 Sample ID: 273992 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.94E-02 1.58E-03 2.87E-03 Sample ID: 274442 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.59E-02 1.28E-03 2.86E-03 Sample ID: 274967 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.60E-02 1.26E-03 2.65E-03 Sample ID: 276510 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.78E-02 1.32E-03 2.75E-03 Sample ID: 278775 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.09E-02 1.36E-03 2.65E-03 Sample ID: 278846 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.48E-02 1.26E-03 2.86E-03 Sample ID: 279086 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.10E-02 1.37E-03 2.67E-03 Sample ID: 279714 Sample Dates: 12/1612013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.61 E-02 1.29E-03 2.76E-03 Sample ID: 280203 Sample Dates: 12/23/2013

-12/30/2013 Sample ID: 280618 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.61 E-02 1.30E-03 2.84E-03 Nuclide Cs-1 34 Cs-137 Be-7 K-40 Activity<2.59E-04<2.01 E-04 1.02E-01 2.18E-02 Sigma Error (1)0.00E+00 0.00E+00 4.23E-03 2.25E-03 LLD 2.59E-04 2.01 E-04 4.43E-03 2.88E-03 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 178085 Sample Dates: 211812013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.00E-02 0.00E+00 7.00E-02 Cs-1 34 <5.00E-02 0.OOE+00 5.00E-02 Cs-1 37 <6.OOE-02 0.00E+00 6.00E-02 Be-7 9.13E-02 2.16E-02 K-40 3.05E-02 1.32E-02 Sample ID: 185464 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.54E-02 2.13E-03 1.33E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories En 13339 Hagers Ferry Road-R Huntersville, North Carolina 28078 Appendix E -Page 24 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 186481 Sample Dates: 1/14/2013

-1/1412013 Nuclide Activity Sigma Error (1) LLD Beta 2.43E-02 2.04E-03 1.22E-03 Sample ID: 185498 Sample Dates: 1/21/2013

-1/2112013 Nuclide Activity Sigma Error (1) LLD Beta 1.91E-02 1.93E-03 1.45E-03 Sample ID: 185515 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.84E-02 2.27E-03 1.48E-03 Sample ID: 185532 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.34E-02 2.09E-03 1.41 E-03 Sample ID: 185548 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.71E-02 1.81E-03 1.38E-03 Sample ID: 185565 Sample Dates: 2/18/2013

-2118/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.76E-02 1.83E-03 1.36E-03 Sample ID: 185582 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.85E-02 1.87E-03 1.35E-03 Sample ID: 185599 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.80E-02 2.OOE-03 1.53E-03 Sample ID: 185616 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.54E-02 1.79E-03 1.44E-03 Sample ID: 186633 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.71E-02 2.35E-03 1.56E-03 Sample ID: 185650 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.41E-02 2.47E-03 1.90E-03 Sample ID: 185667 Sample Dates: 4/11/2013

-4/1/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.69E-02 1.82E-03 1.44E-03 Sample ID: 256287 Sample Dates: 4/1/2013 -4/812013 Nuclide Activity Sigma Error (1) LLD Beta 1.86E-02 1.39E-03 2.97E-03 Sample ID: 266350 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.39E-02 1.24E-03 2.86E-03 Sample ID: 257140 Sample Dates: 4122/2013

-4129/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.64E-02 1.37E-03 3.18E-03 Sample ID: 257246 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.79E-02 1.41E-03 3.06E-03 Sample ID: 257293 Sample Dates: 4/29/2013

-516/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.04E-02 1.25E-03 3.24E-03 Sample ID: 257740 Sample Dates: 516/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.33E-02 1.26E-03 2.93E-03 Sample ID: 257984 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.79E-02 1.61E-03 2.95E-03 Sample ID: 258219 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.49E-02 1.49E-03 3.52E-03 Sample ID: 258566 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.40E-02 1.20E-03 2.75E-03 Sample ID: 259036 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.06E-02 1.21E-03 3.OOE-03 Sample ID: 259584 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.63E-02 1.23E-03 2.60E-03 Sample ID: 260218 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.42E-02 1.50E-03 3.73E-03 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 .EnRad Laboratories Appendix E -Page 25 of 120 Duke Energy Annual Report -Appendix E [13339 Hagers Ferry Road-Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCilm3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 260678 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1)Beta 7.49E-03 1.10E-03 Sample ID: 261641 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1)Beta 9.64E-03 1.15E-03 Sample ID: 261964 Sample Dates: 6/24/2013

-7/11/2013 Nuclide Activity Sigma Error (1)Beta 1.60E-02 1.27E-03 Sample ID: 262143 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1)Beta 9.30E-03 1.19E-03 Sample ID: 262740 Sample Dates: 4/1/2013 -7/1/2013 Nuclide Activity Sigma Error (1)1-131 <3.18E-02 0.OOE+00 Cs-134 <2.83E-04 0.00E+00 Cs-137 <3.58E-04 0.OOE+00 Be-7 1.40E-01 5.59E-03 K-40 1.64E-02 2.55E-03 Sample ID: 263216 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1)Beta 1.77E-02 1.36E-03 Sample ID: 263431 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1)Beta 2.06E-02 1.51 E-03 Sample ID: 264086 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1)Beta 1.62E-02 1.42E-03 LLD 2.92E-03 LLD 2.91E-03 LLD 2.60E-03 LLD 3.09E-03 LLD 3.18E-02 2.83E-04 3.58E-04 4.77E-03 3.92E-03 LLD 2.87E-03 LLD 3.27E-03 LLD 3.31E-03 Sample ID: 265220 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Beta Sample ID: 265540 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Beta Sample ID: 267215 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Beta Activity Sigma Error (1) LLD 1.30E-02 1. 11 E-03 2.38E-03 Activity Sigma Error (1) LID 1.26E-02 1.38E-03 -3.35E-03 ________ ____Activity 2.77E-02 Sigma Error (1) LLD 1.52E-03 2.84E-03 Sample ID: 267685 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.68E-02 1.77E-03 3.57E-03 Sample ID: 268525 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.14E-02 1.69E-03 3.05E-03 Sample ID: 269696 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.09E-02 1.43E-03 2.88E-03 Sample ID: 270804 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.02E-02 1.43E-03 2.97E-03 Sample ID: 271512 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.90E-02 1.64E-03 2.90E-03 Sample ID: 272122 Sample Dates: 10/712013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.07E-02 1.18E-03 2.82E-03 Sample ID: 272517 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.92E-02 1.43E-03 2.95E-03 Sample ID: 272668 Sample Dates: 7/1/2013 -9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.25E-02 O.OOE+00 6.25E-02 Cs-134 <4.83E-04 0.OOE+00 4.83E-04 Cs-137 <4.77E-04 O.OOE+00 4.77E-04 Be-7 1.31E-01 6.34E-03 7.88E-03 K-40 2.39E-02 3.35E-03 6.55E-03 Sample ID: 272905 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.63E-02 1.62E-03 3.19E-03 Sample ID: 273993 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Beta 3.03E-02 1.71E-03 3.19E-03 Sample ID: 274443 Sample Dates: 1114/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.88E-02 1.46E-03 3.18E-03 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories 10D 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 26 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR PARTICULATE Concentration (Activity):

pCi/m3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 274968 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.08E-02 1.48E-03 2.94E-03 Sample ID: 276511 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.86E-02 1.44E-03 3.07E-03 Sample ID: 278776 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.19E-02 1.48E-03 2.95E-03 Sample ID: 278847 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.04E-02 1.51 E-03 3.20E-03 Sample ID: 279087 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.17E-02 1.48E-03 2.96E-03 Sample ID: 279715 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.74E-02 1.41E-03 3.06E-03 Sample ID: 280204 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Beta 2.OOE-02 1.48E-03 3.14E-03 Sample ID: 280619 Sample Dates: 9/30/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD Cs-134 <2.93E-04 O.OOE+00 2.93E-04 Cs-137 <3.26E-04 O.OOE+00 3.26E-04 Be-7 1.07E-01 6.27E-03 5.69E-03 K-40 5.85E-03 1.65E-03 3.99E-03 Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point I [ CONTROL -ESE @ 24.4 miles ]Sample ID: 177511 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity 1-131 <1.64E-02 Sample ID: 177574 Sample Dates: 1/14/2013

-1114/2013 Nuclide Activity 1-131 <1.88E-02 Sample ID: 177619 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity 1-131 <1.55E-02 Sample ID: 177653 Sample Dates: 1/2812013

-1/28/2013 Nuclide Activity 1-131 <1.54E-02 Sigma Error (1) LLD O.OOE+00 1.64E-02 Sigma Error (1) LLD O.OOE+00 1 .88E-02 Sigma Error (1) LLD O.OOE+00 1.55E-02 Sigma Error (1) LLD O.OOE+00 1.54E-02 Sample ID: 177687 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.33E-02 O.OOE+00 1.33E-02 Sample ID: 177732 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.63E-02 O.OOE+00 1.63E-02 Sample ID: 177770 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.29E-02 O.OOE+00 1.29E-02 Sample ID: 177841 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.71E-02 O.OOE+00 1.71E-02 Sample ID: 177877 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.08E-02 O.OOE+00 1.08E-02 Sample ID: 177926 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.41E-02 O.OOE+00 2.41E-02 Sample ID: 177962 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.88E-02 O.OE+00 1.88E-02 Sample ID: 177989 Sample Dates: 3/2412013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.12E-02 O.OOE+00 2.12E-02 Sample ID: 178023 Sample Dates: 4/11/2013

-4/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.20E-02 O.OOE+00 1.20E-02 Sample ID: 178093 Sample Dates: 4/8/2013 -4/8/2013 Nuclide 1-131 Activity<1.72E-02 Sigma Error (1) LLD O.OOE+00 1.72E-02 (1) Analysis results generated by Harms Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[g 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 27 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point I [ CONTROL -ESE @ 24.4 miles ]Sample ID: 256298 Sample Dates: 4/812013 -4115/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.12E-02 0.OOE+00 2.12E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <8.66E-03 O.OOE+00 8.66E-03 Be-7 <9.70E-02 O.OOE+00 9.70E-02 K-40 <4.46E-01 O.00E+00 4.46E-01 Sample ID: 256646 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.63E-02 0.00E+00 2.63E-02 Cs-134 <1.57E-02 O.OOE+00 1.57E-02 Cs-137 <1.29E-02 0.00E+00 1.29E-02 Be-7 5.69E-02 2.15E-02 1.06E-01 K-40 4.67E-01 1.02E-01 1.62E-01 Sample ID: 257180 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.24E-02 0.OOE+00 2.24E-02 Cs-1 34 <1.37E-02 0.00E+00 1 .37E-02 Cs-1 37 <1.32E-02 O.00E+00 1.32E-02 Be-7 <1.15E-01 0.OOE+00 1.15E-01 K-40 4.OOE-01 1.25E-01 5.93E-02 Sample ID: 257325 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E-02 O.00E+00 1.50E-02 Cs-1 34 <9.60E-03 O.OOE+00 9.60E-03 Cs-137 <1.27E-02 0.OOE+00 1.27E-02 Be-7 <9.46E-02 0.00E+00 9.46E-02 K-40 7.63E-01 1.02E-01 1.24E-01 Sample ID: 257770 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.97E-02 0.00E+00 1.97E-02 Cs-134 <1.09E-02 0.00E+00 1.09E-02 Cs-1 37 <1.48E-02 O.OOE+00 1.48E-02 Be-7 <6.97E-02 0.00E+00 6.97E-02 K-40 <4.71E-01 0.OOE+00 4.71E-01 Sample ID: 258016 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.28E-02 O.OOE+00 1.28E-02 Cs-134 <1.18E-02 0.OOE+00 1.18E-02 Cs-137 <1.47E-02 0.00E+00 1.47E-02 Be-7 <1.07E-01 0.00E+00 1.07E-01 K-40 4.84E-01 9.87E-02 1.44E-01 Sample ID: 258262 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E-02 0.OOE+00 1.50E-02 Cs-134 <1.98E-02 O.OOE+00 1.98E-02 Cs-1 37 <2.45E-02 0.OOE+00 2.45E-02 Be-7 <1.65E-01 0.OOE+00 1.65E-01 K-40 <5.91E-01 0.OOE+00 5.91 E-01 Sample ID: 258598 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.85E-02 O.OOE+00 1.85E-02 Cs-134 <1.31E-02 0.OOE+00 1.31E-02 Cs-137 <1.51E-02 0.OOE+00 1.51E-02 Be-7 <1.43E-01 0.OOE+00 1.43E-01 K-40 3.89E-01 9.43E-02 1.72E-01 Sample ID: 259072 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.55E-02 O.OOE+00 1.55E-02 Cs-134 <1 .28E-02 O.OOE+00 1.28E-02 Cs-1 37 <1 .08E-02 O.OOE+00 1.08E-02 Be-7 <9.72E-02 0.OOE+00 9.72E-02 K-40 3.39E-01 8.76E-02 1.63E-01 Sample ID: 269636 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.23E-02 0.OOE+00 2.23E-02 Cs-1 34 <1.41E-02 O.OOE+00 1.41E-02 Cs-1 37 <1.43E-02 0.O0E+00 1.43E-02 Be-7 <9.50E-02 0.OOE+00 9.50E-02 K-40 4.30E-01 1.21E-01 1.66E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 .EnRad Laboratories Appendix E -Page 28 of 120 Duke Energy Annual Report -Appendix E ', 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point I [ CONTROL -ESE @ 24.4 miles ]Sample ID: 260268 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.10E-02 O.OOE+00 2.10E-02 Cs-134 <1.98E-02 O.OOE+00 1.98E-02 Cs-137 <2.63E-02 O.OOE+00 2.63E-02 Be-7 <2.04E-01 O.OOE+00 2.04E-01 K-40 1.96E-01 1.21 E-01 2.17E-01 Sample ID: 260740 Sample Dates: 7/11/2013

-7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.14E-02 0.OOE+00 1.14E-02 Cs-134 <1.07E-02 0.OOE+00 1.07E-02 Cs-137 <1.07E-02 0.OOE+00 1.07E-02 Be-7 <7.96E-02 0.00E+00 7.96E-02 K-40 4.18E-01 7.18E-02 8.99E-02 Sample ID: 261679 Sample Dates: 7/8/2013 -7/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <9.24E-03 O.OOE+00 9.24E-03 Cs-134 <8.24E-03 O.OOE+00 8.24E-03 Cs-1 37 <1.13E-02 O.OOE+00 1.13E-02 Be-7 <8.11E-02 O.OOE+00 8.11E-02 K-40 3.85E-01 8.61 E-02 1.41 E-01 Sample ID: 261946 Sample Dates: 6/24/2013

-7/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.55E-02 O.OOE+00 1.55E-02 Cs-1 34 <1.64E-02 O.OOE+00 1.64E-02 Cs-1 37 <1.38E-02 O.OOE+00 1.38E-02 Be-7 <1.55E-01 O.OOE+00 1.55E-01 K-40 <5.34E-01 0.OOE+00 5.34E-01 Sample ID: 262189 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.31E-02 O.OOE+00 2.31E-02 Cs-134 <1.99E-02 O.OOE+00 1.99E-02 Cs-1 37 <2.12E-02 O.OOE+00 2.12E-02 Be-7 <1.39E-01 O.OOE+00 1.39E-01 K-40 <5.62E-01 O.OOE+00 5.62E-01 Sample ID: 263645 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.22E-02 O.OOE+00 2.22E-02 Cs-1 34 <1.64E-02 O.OOE+0O 1.64E-02 Cs-1 37 <1.63E-02 O.OOE+00 1.63E-02 Be-7 <1.27E-01 O.OOE+00 1.27E-01 K-40 4.88E-01 1.12E-01 1.94E-01 Sample ID: 265035 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <8.78E-03 0.OOE+00 8.78E-03 Cs-134 <3.33E-03 O.OOE+00 3.33E-03 Cs-1 37 <3.95E-03 O.OOE+00 3.95E-03 Be-7 <3.33E-02 0.OOE+00 3.33E-02 K-40 5.26E-01 4.27E-02 3.69E-02 Sample ID: 266652 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.45E-02 0.OOE+00 2.45E-02 Cs-134 <1.46E-02 0.OOE+00 1.46E-02 Cs-1 37 <2.08E-02 O.OOE+00 2.08E-02 Be-7 <1.36E-01 O.OOE+00 1.36E-01 K-40 4.86E-01 1.14E-01 7.29E-02 Sample ID: 267532 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.05E-02 0.OOE+00 1.05E-02 Cs-1 34 <1.62E-02 O.OOE+00 1.62E-02 Cs-1 37 <1.29E-02 O.OOE+00 1.29E-02 Be-7 <1.09E-01 O.OOE+00 1.09E-01 K-40 2.26E-01 7.16E-02 6.12E-02 Sample ID: 268227 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.17E-02 O.OOE+00 2.17E-02 Cs-134 <2.14E-02 O.OOE+00 2.14E-02 Cs-137 <2.07E-02 O.OOE+00 2.07E-02 Be-7 <1.46E-01 O.OOE+00 1.46E-01 K-40 6.41E-01 1.69E-01 2.25E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -_ EnRad Laboratories Appendix E -Page 29 of 120 Duke Energy Annual Report -Appendix E [g 13339 Hagers Ferry Road-D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 1 [ CONTROL -ESE @ 24.4 miles ]Sample ID: 269698 Sample Dates: 812612013

-9/312013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.32E-02 0.OOE+00 3.32E-02 Cs-134 <1.78E-02 0.00E+00 1.78E-02 Cs-137 <2.32E-02 O.OOE+00 2.32E-02 Be-7 <1.53E-01 0.OOE+00 1.53E-01 K-40 4.47E-01 1.05E-01 2.23E-01 Sample ID: 270606 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.70E-02 0.00E+00 3.70E-02 Cs-1 34 <2.00E-02 0.OOE+00 2.00E-02 Cs-1 37 <2.99E-02 0.00E+00 2.99E-02 Be-7 <1.88E-01 0.OOE+00 1.88E-01 K-40 <6.18E-01 0.OOE+00 6.18E-01 Sample ID: 271327 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.18E-02 0.OOE+00 2.18E-02 Cs-1 34 <1.68E-02 0.OOE+00 1.68E-02 Cs-137 <2.01E-02 0.OOE+00 2.01E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 5.45E-01 1.19E-01 2.38E-01 Sample ID: 271712 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.91E-02 0.00E+00 1.91E-02 Cs-134 <1.52E-02 0.00E+00 1.52E-02 Cs-1 37 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.23E-01 0.OOE+00 1.23E-01 K-40 <5.09E-01 0.OOE+00 5.09E-01 Sample ID: 272361 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.66E-02 O.OOE+00 2.66E-02 Cs-134 <1.52E-02 O.00E+00 1.52E-02 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 <4.34E-01 0.00E+00 4.34E-01 Sample ID: 272769 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.26E-02 0.00E+00 3.26E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <1.92E-02 0.00E+00 1.92E-02 Be-7 <8.85E-02 0.00E+00 8.85E-02 K-40 2.17E-01 1.07E-01 2.02E-01 Sample ID: 273995 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.99E-02 0.00E+00 3.99E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-137 <2.16E-02 0.00E+00 2.16E-02 Be-7 <1.57E-01 0.00E+00 1.57E-01 K-40 5.86E-01 1.25E-01 2.44E-01 Sample ID: 274241 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.72E-02 0.00E+00 2.72E-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 <9.18E-02 0.00E+00 9.18E-02 K-40 4.26E-01 1.06E-01 1.91E-01 Sample ID: 274613 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.19E-02 0.00E+00 1.19E-02 Cs-1 34 <6.26E-03 0.00E+00 6.26E-03 Cs-1 37 <8.55E-03 0.00E+00 8.55E-03 Be-7 <5.19E-02 0.00E+00 5.19E-02 K-40 3.47E-01 7.97E-02 1.34E-01 Sample ID: 275201 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error(1) LLD 1-131 <2.08E-02 0.00E+00 2.08E-02 Cs-1 34 <1.95E-02 0.00E+00 1.95E-02 Cs-137 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 4.55E-01 1.10E-01 2.30E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 30 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point I [ CONTROL -ESE @ 24.4 miles ]Sample ID: 277036 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity 1-131 <2.02E-02 Cs-134 <1.38E-02 Cs-137 <2.08E-02 Be-7 <1.48E-01 K-40 4.26E-01 Sample Dates: 11118/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 0.00E+00 2.02E-02 0.00E+00 1.38E-02 0.00E+00 2.08E-02 0.00E+00 1.48E-01 1.06E-01 2.54E-01 Sigma Error (1) LLD O.OOE+00 1.66E-02 0.00E+00 9.41E-03 0.00E+00 7.38E-03 0.OOE+00 6.77E-02 8.78E-02 1.02E-01 Sample ID: 277065 1-131 Cs-134 Cs-137 Be-7 K-40<1.66E-02<9.41 E-03<7.38E-03<6.77E-02 5.27E-01 Sample ID: 277065 Sample Dates: 11/11/2013

-11118/2013 Nuclide 1-131 Cs-134 Cs-137 Be-7 Activity<2.11E-02<1.19E-02<1.65E-02<1.51 E-01 Sigma Error(1 0.00 E+O0 0.006+00 0.OOE+00 0.006+00 LLD 2.11E-02 1.19E-02 1.65E-02 1.51E-01 K-40 3.99E-01 1.40E-01 3.74E-01 Sample ID: 278777 Sample ID: 278848 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1)1-131 <2.99E-02 0.OOE+00 Cs-1 34 <1.69E-02 0.00E+00 Cs-137 <1.13E-02 0.OOE+00 Be-7 <1.11E-01 0.0OE+00 K-40 <5.43E-01 0.00E+00 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1)1-131 <1.36E-02 O.OOE+00 Cs-1 34 <1.03E-02 0.OOE+00 Cs-1 37 <9.24E-03 0.00E+00 Be-7 <5.32E-02 0.OOE+00 K-40 6.36E-01 9.12E-02 LLD 2.99E-02 1 .69E-02 1.13E-02 1. 11E-01 5.43E-01 Sample ID: 279088 Sample Dates: 1219/2013

-12/16/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Sample ID: 279716 Sample Dates: 12/16/2013

-12/23/2013 Nuclide 1-131 Cs-134 Cs-1 37 Be-7 K-40 Activity Sigma Error (1)<2.06E-02 0.OOE+00<1.63E-02 0.OOE+00<1.37E-02 0.OOE+00<1.40E-01 0.00E+00 5.61E-01 1.22E-01 Activity Sigma Error (1)<3.44E-02 0.00E+00<1.32E-02 0.00E+00<1.80E-02 0.OOE+00<1.17E-01 0.OOE+00<5.94E-01 0.OOE+00 LLD 1.36E-02 1.03E-02 9.24E-03 5.32E-02 7.99E-02 LLD 2.06E-02 1.63E-02 1.37E-02 1.40E-01 1.92E-01 LLD 3.44E-02 1.32E-02 1.80E-02 1.17E-01 5.94E-01 Sample ID: 280205 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.48E-02 0.00E+00 4.48E-02 Cs-134 <1.82E-02 0.00E+00 1.82E-02 Cs-1 37 <2.21 E-02 0.00E+00 2.21 E-02 Be-7 <1.27E-01 0.00E+00 1.27E-01 K-40 5.51E-01 1.23E-01 2.60E-01 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 177512 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.95E-02 0.OOE+00 1.95E-02 Sample ID: 177576 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.47E-02 0.OOE+00 1.47E-02 Sample ID: 177620 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.08E-02 0.00E+00 3.08E-02 Sample ID: 177654 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.94E-02 0.OOE+00 1.94E-02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories En 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 31 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 177688 Sample Dates: 21412013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.14E-02 O.OOE+00 2.14E-02 Sample ID: 177733 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E-02 O.OOE+00 1.50E-02 Sample ID: 177771 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.40E-02 O.OOE+00 2.40E-02 Sample ID: 177842 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.19E-02 O.OOE+00 2.19E-02 Sample ID: 177878 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.90E-02 0.00E+00 1.90E-02 Sample ID: 177927 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.69E-02 O.OOE+00 1.69E-02 Sample ID: 177963 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.16E-02 O.OOE+00 1.16E-02 Sample ID: 177990 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.89E-02 O.OOE+00 1.89E-02 Sample ID: 178024 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.74E-02 O.OOE+00 1.74E-02 Sample ID: 178094 Sample Dates: 4/8/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.80E-02 O.OOE+00 1.80E-02 Sample ID: 256377 Sample Dates: 4/812013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.49E-02 0.00E+00 1.49E-02 Cs-134 <9.70E-03 O.OOE+00 9.70E-03 Cs-137 <1.15E-02 O.OOE+O0 1.15E-02 Be-7 <6.84E-02 O.OOE+00 6.84E-02 K-40 2.54E-01 6.79E-02 4.90E-02 Sample ID: 256647 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.19E-02 O.OOE+00 2.19E-02 Cs-1 34 <1.57E-02 O.OOE+00 1.57E-02 Cs-1 37 <1.52E-02 O.OOE+00 1.52E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 <4.25E-01 O.OOE+00 4.25E-01__

Sample ID: 257181 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.76E-02 O.OOE+00 1.76E-02 Cs-1 34 <1.56E-02 O.OOE+00 1.56E-02 Cs-1 37 <8.87E-03 O.OOE+00 8.87E-03 Be-7 <9.94E-02 O.OOE+O0 9.94E-02 K-40 3.79E-01 9.19E-02 6.03E-02 Sample ID: 257326 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.34E-02 O.OOE+00 1.34E-02 Cs-134 <1.35E-02 O.OOE+00 1.35E-02 Cs-137 <9.81E-03 O.OOE+00 9.81E-03 Be-7 <1.08E-01 O.OOE+00 1.08E-01 K-40 <3.86E-01 O.OOE+00 3.86E-01 Sample ID: 257771 Sample Dates: 5/6/2013 -5113/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.10E-02 O.OOE+00 1.10E-02 Cs-1 34 <8.95E-03 O.OOE+00 8.95E-03 Cs-137 <1.15E-02 O.OOE+00 1.15E-02 Be-7 <5.17E-02 O.OOE+00 5.17E-02 K-40 4.69E-01 8.98E-02 1.22E-01 Sample ID: 258017 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.44E-02 O.OOE+00 1.44E-02 Cs-1 34 <8.97E-03 O.OOE+00 8.97E-03 Cs-1 37 <7.89E-03 O.OOE+00 7.89E-03 Be-7 <8.80E-02 O.OE+00 8.80E-02 K-40 6.46E-01 9.05E-02 9.09E-02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 32 of 120 Duke Energy Annual Report -Appendix E ' 13339 Hagers Ferry Road.D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 258263 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.54E-02 O.OOE+00 3.54E-02 Cs-1 34 <1.57E-02 O.OOE+00 1.57E-02 Cs-1 37 <1.85E-02 O.OOE+00 1.85E-02 Be-7 <1.56E-01 O.OOE+00 1.56E-01 K-40 3.43E-01 1.03E-01 2.24E-01 Sample ID: 258599 Sample Dates: 6/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.42E-02 O.OOE+00 2.42E-02 Cs-1 34 <1.39E-02 O.OOE+00 1.39E-02 Cs-1 37 <1.58E-02 O.OOE+00 1.58E-02 Be-7 <1.56E-01 0.00E+00 1.56E-01 K-40 2.71E-01 1.04E-01 6.27E-02 Sample ID: 259073 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.61E-02 O.OOE+00 1.61E-02 Cs-1 34 <1.05E-02 O.OOE+00 1.05E-02 Cs-1 37 <8.38E-03 O.OOE+00 8.38E-03 Be-7 <8.26E-02 O.OOE+00 8.26E-02 K-40 4.66E-01 7.36E-02 3.15E-02 Sample ID: 259637 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.16E-02 O.OOE+00 2.16E-02 Cs-134 <1.71E-02 O.OOE+00 1.71E-02 Cs-137 <1.69E-02 O.OOE+00 1.69E-02 Be-7 <1.17E-01 O.OOE+00 1.17E-01 K-40 <4.86E-01 O.OOE+00 4.86E-01 Sample ID: 260269 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.73E-02 O.OOE+00 2.73E-02 Cs-134 <1.37E-02 0.00E+00 1.37E-02 Cs-1 37 <1.86E-02 O.OOE+00 1.86E-02 Be-7 <1.12E-01 O.OOE+00 1.12E-01 K-40 3.53E-01 1.25E-01 1.90E-01 Sample ID: 260741 Sample Dates: 7/11/2013

-7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <9.21E-03 O.OOE+00 9.21E-03 Cs-1 34 <7.46E-03 O.OOE+00 7.46E-03 Cs-137 <5.11E-03 0.00E+00 5.11E-03 Be-7 <6.48E-02 O.OOE+00 6.48E-02 K-40 2.60E-01 5.82E-02 9.53E-02 Sample ID: 261680 Sample Dates: 7/812013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <8.88E-03 O.OOE+00 8.88E-03 Cs-1 34 <6.88E-03 O.OOE+00 6.88E-03 Cs-137 <1.13E-02 O.OOE+00 1.13E-02 Be-7 <6.24E-02 O.OOE+00 6.24E-02 K-40 3.84E-01 8.04E-02 9.25E-02 Sample ID: 261947 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.47E-02 O.OOE+00 1.47E-02 Cs-134 <8.76E-03 O.00E+00 8.76E-03 Cs-137 <1.15E-02 O.OOE+00 1.15E-02 Be-7 <7.98E-02 O.OOE+00 7.98E-02 K-40 5.27E-01 8.13E-02 8.93E-02 Sample ID: 262190 Sample Dates: 7/1512013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.08E-02 O.OOE+00 2.08E-02 Cs-1 34 <1.62E-02 O.OOE+00 1.62E-02 Cs-1 37 <1.80E-02 O.OOE+00 1.80E-02 Be-7 <1.31E-01 O.OOE+00 1.31E-01 K-40 <5.24E-01 O.OOE+00 5.24E-01 Sample ID: 263646 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.10E-02 O.OOE+00 2.10E-02 Cs-134 <1.10E-02 O.OE+00 1.10E-02 Cs-1 37 <1.82E-02 O.OOE+00 1.82E-02 Be-7 <1.36E-01 0.00E+00 1.36E-01 K-40 4.96E-01 1.17E-01 2.07E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 n EnRad Laboratories Appendix E -Page 33 of 120 Duke Energy Annual Report -Appendix E [ 13339 Hagers Ferry Road--~ Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 265036 Sample Dates: 7/22/2013

-7/2912013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.05E-02 O.OOE+00 3.05E-02 Cs-1 34 <1.44E-02 0.00E+00 1.44E-02 Cs-1 37 <1.34E-02 0.OOE+00 1.34E-02 Be-7 <1.46E-01 0.OOE+00 1.46E-01 K-40 6.30E-01 1.29E-01 2.37E-01 Sample ID: 266653 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.53E-02 0.OOE+00 2.53E-02 Cs-1 34 <1.30E-02 0.OOE+00 1.30E-02 Cs-137 <1.78E-02 O.OOE+00 1.78E-02 Be-7 <1.47E-01 0.OOE+00 1.47E-01 K-40 4.35E-01 1.09E-01 7.36E-02 Sample ID: 267533 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.12E-02 O.00E+00 1.12E-02 Cs-134 <1.15E-02 O.OOE+00 1.15E-02 Cs-137 <1.36E-02 O.OOE+00 1.36E-02 Be-7 <7.58E-02 O.OOE+00 7.58E-02 K-40 <3.51E-01 O.OOE+00 3.51E-01 Sample ID: 268228 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.54E-02 O.OOE+00 1.54E-02 Cs-1 34 <1.52E-02 O.OOE+00 1.52E-02 Cs-1 37 <2.06E-02 O.OOE+00 2.06E-02 Be-7 <1.76E-01 0.OOE+00 1.76E-01 K-40 4.71 E-01 1.22E-01 2.26E-01 Sample ID: 269699 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.52E-02 O.OOE+00 1.52E-02 Cs-1 34 <9.52E-03 O.OOE+00 9.52E-03 Cs-137 <1.31 E-02 O.OOE+00 1.31E-02 Be-7 <8.17E-02 O.OOE+00 8.17E-02 K-40 <2.68E-01 O.0OE+00 2.68E-01 Sample ID: 270607 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.56E-02 O.00E+00 2.56E-02 Cs-1 34 <1.92E-02 O.OOE+00 1.92E-02 Cs-1 37 <2.20E-02 O.OOE+00 2.20E-02 Be-7 <1.47E-01 O.OOE+00 1.47E-01 K-40 4.02E-01 1.52E-01 3.63E-01 Sample ID: 271328 Sample Dates: 9/9/2013 -9/1612013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.52E-02 O.OOE+00 2.52E-02 Cs-134 <1.71E-02 0.OOE+00 1.71E-02 Cs-137 <1.35E-02 O.OOE+00 1.35E-02 Be-7 <1.05E-01 O.OOE+00 1.05E-01 K-40 <4.78E-01 0.00E+00 4.78E-01 Sample ID: 271713 Sample Dates: 9/16/2013-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.37E-02 O.0OE+00 2.37E-02 Cs-134 <1.11 E-02 0.OOE+00 1.11 E-02 Cs-1 37 <2.11 E-02 O.OOE+00 2.11 E-02 Be-7 <1.64E-01 O.OOE+00 1.64E-01 K-40 4.69E-01 1.14E-01 7.46E-02 Sample ID: 272352 Sample Dates: 912312013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.29E-02 O.OOE+00 2.29E-02 Cs-134 <1.49E-02 O.OOE+00 1.49E-02 Cs-1 37 <2.13E-02 0.OOE+00 2.13E-02 Be-7 <1.50E-01 O.OOE+00 1.50E-01 K-40 2.17E-01 1.34E-01 3.30E-01 Sample ID: 272770 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.24E-02 O.OOE+00 1.24E-02 Cs-1 34 <1.80E-02 O.OOE+00 1.80E-02 Cs-137 <1.60E-02 O.OOE+00 1.60E-02 Be-7 <1.60E-01 0.00E+00 1.60E-01 K-40 <6.56E-01 O.OOE+00 6.56E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 ...EnRad Laboratories Appendix E -Page 34 of 120 Duke Energy Annual Report -Appendix E 'n 13339 Hagers Ferry Road.. Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 273996 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.71E-02 0.00E+00 3.71E-02 Cs-1 34 <1.97E-02 O.OOE+00 1.97E-02 Cs-1 37 <1.90E-02 O.OOE+00 1.90E-02 Be-7 <1.52E-01 O.OOE+00 1.52E-01 K-40 4.02E-01 1.08E-01 2.64E-01 Sample ID: 274242 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.09E-02 O.OOE+00 2.09E-02 Cs-134 <1.87E-02 O.OOE+00 1.87E-02 Cs-137 <1.85E-02 O.OOE+00 1.85E-02 Be-7 <1.09E-01 O.OOE+00 1.09E-01 K-40 6.15E-01 1.26E-01 2.19E-01 Sample ID: 274614 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.32E-02 O.OOE+00 1.32E-02 Cs-134 <1.19E-02 O.OOE+0O 1.19E-02 Cs-1 37 <1.24E-02 O.OOE+00 1.24E-02 Be-7 <9.14E-02 O.OOE+00 9.14E-02 K-40 4.78E-01 1.02E-01 1.81E-01 Sample ID: 275202 Sample Dates: 10/28/2013-11/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.55E-02 O.OOE+00 2.55E-02 Cs-134 <2.09E-02 O.OOE+00 2.09E-02 Cs-137 <1.81E-02 O.OOE+00 1.81E-02 Be-7 <9.21 E-02 O.00E+00 9.21 E-02 K-40 5.65E-01 1.23E-01 2.44E-01 Sample ID: 277036 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.71E-02 0.00E+00 2.71E-02 Cs-1 34 <1.32E-02 O.00E+00 1.32E-02 Cs-1 37 <2.33E-02 0.OOE+00 2.33E-02 Be-7 <7.23E-02 0.00E+00 7.23E-02 K-40 4.21E-01 1.05E-01 2.92E-01 Sample ID: 277046 Sample Dates: 1111812013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.33E-02 O.OOE+00 2.33E-02 Cs-134 <9.84E-03 O.OOE+00 9.84E-03 Cs-137 <1.05E-02 0.OOE+00 1.05E-02 Be-7 <6.18E-02 0.OOE+00 6.18E-02 K-40 <3.67E-01 0.OOE+00 3.67E-01 Sample ID: 277056 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.90E-02 0.00E+00 1.90E-02 Cs-1 34 <1.62E-02 0.00E+00 1.62E-02 Cs-137 <8.91E-03 0.00E+00 8.91E-03 Be-7 7.81E-02 3.98E-02 1.09E-01 K-40 3.44E-01 1.13E-01 2.02E-01 Sample ID: 278778 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.03E-02 O.OOE+00 2.03E-02 Cs-1 34 <2.29E-02 O.OOE+00 2.29E-02 Cs-1 37 <2.09E-02 O.OOE+00 2.09E-02 Be-7 <1.26E-01 O.OOE+00 1.26E-01 K-40 1.95E-01 9.37E-02 2.71E-01 Sample ID: 278849 Sample Dates: 12/2/2013

-12/912013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.62E-02 O.OOE+00 2.62E-02 Cs-1 34 <1. 16E-02 O.OOE+00 1.16E-02 Cs-137 <1.80E-02 O.OOE+00 1.80E-02 Be-7 <1.30E-01 0.OOE+00 1.30E-01 K-40 <4.82E-01 0.00E+00 4.82E-01 Sample ID: 279089 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.45E-02 O.OOE+00 2.45E-02 Cs-134 <1.66E-02 O.OOE+00 1.66E-02 Cs-137 <1.07E-02 O.OOE+00 1.07E-02 Be-7 <1.19E-01 O.OOE+00 1.19E-01 K-40 <6.15E-01 O.OOE+00 6.15E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 ..... EnRad Laboratories Appendix E -Page 35 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road-u Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]Sample ID: 279717 Sample Dates: 1211612013

-12123/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.66E-02 O.OOE+00 2.66E-02 Cs-134 <1.31E-02 0.OOE+00 1.31E-02 Cs-1 37 <1.05E-02 0.00E+00 1.05E-02 Be-7 <9.57E-02 0.OOE+00 9.57E-02 K-40 2.47E-01 9.84E-02 1.66E-01 Sample ID: 280206 Sample Dates: 1212312013

-12130/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.41E-02 0.OOE+00 4.41 E-02 Cs-1 34 <1.66E-02 0.OOE+00 1.66E-02 Cs-137 <1.59E-02 0.OOE+00 1.59E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 6.31 E-01 1.32E-01 2.60E-01 Sample Point 3 [ INDICATOR

-N @ 0.5 miles ]Sample ID: 177513 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity Sinma Errnr (1) II n Sample ID: 177576 Sample ID: 177621 1-131 <1.85E-02 0.OOE+00 1.85E-02 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.34E-02 0.00E+00 1.34E

______Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.85E-02 0.00E+00 1.85E-02 Sample ID: 177655 Sample Dates: 1/28/2013

-1128/2013 Nuclide Activity 1-131 <1.78E-02 Sigma Error (1) LLD 0.OOE+00 1.78E-02 Sample ID: 177689 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.94E-02 0.00E+00 1.94E-02 Sample ID: 177734 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.41E-02 0.00E+00 1.41E-02 Sample ID: 177772 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity 1-131 <2.20E-02 Sample ID: 177843 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity 1-131 <1.42E-02 Sigma Error (1) LLD 0.OOE+00 2.20E-02 Sigma Error (1) LLD 0.OOE+00 1.42E-02 Sample ID: 177879 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1)1-131 <2.03E-02 0.00E+00 LLD 2.03E-02 Sample ID: 177928 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1)1-131 <1.28E-02 0.OOE+00 LLD 1.28E-02 Sample ID: 177964 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.45E-02 0.002+00 1.45E-02 Sample ID: 177991 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.04E-02 0.002+00 2.04E-02 Sample ID: 178025 Sample Dates: 4/1/2013 -4/11/2013 Nuclide Activity Sigma Error (1)1-131 <1.40E-02 O.00E+00 LLD 1.40E-02 LLD 1.90E-02 Sample ID: 178095 Sample Dates: 4/8/2013 -4/8/2013 Nuclide Activity 1-131 <1.90E-02 Sample ID: 256290 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity 1-131 <1.42E-02 Cs-134 <1.14E-02 Cs-137 <1.13E-02 Be-7 <1.16E-01 K-40 2.32E-01 Sample ID: 256648 Sample Dates: 411512013

-4/22/2013 Nuclide Activity Sigma Error (1)0.00E+00 Sigma Error (1)0.OOE+00 0.002+00 0.002+00 0.002+00 1.1.3E-01 Sigma Error (1)0. 00-+00 0.006+00 0. 00-+00 0.OOE+00 0.002+00 LLD 1 .42E-02 1.14E-02 1.13 E-02 1.16E-01 2.34E-01 LLD 2.53E-02 1.56E-02 1.762-02 1.19E-01 4 .49E2-0 1 1-131 <2.53E-02 Cs-134 <1.56E-02 Cs-1 37 <1.76E-02 Be-7 <1.19E-01 K-40 <4.49E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories El .13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 36 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 3 [ INDICATOR

-N @ 0.5 miles ]Sample ID: 257182 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.53E-02 0.00E+00 1.53E-02 Cs-134 <1.02E-02 0.OOE+00 1.02E-02 Cs-137 <1.45E-02 O.OOE+00 1.45E-02 Be-7 <4.90E-02 0.OOE+00 4.90E-02 K-40 2.88E-01 7.44E-02 1.43E-01 Sample ID: 257327 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.43E-02 O.OOE+00 1.43E-02 Cs-134 <8.46E-03 0.OOE+00 8.46E-03 Cs-137 <1.33E-02 0.OOE+00 1.33E-02 Be-7 <7.69E-02 0.OOE+00 7.69E-02 K-40 4.82E-01 8.14E-02 1.02E-01 Sample ID: 257772 Sample Dates: 5/6/2013 -6/13/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E-02 0.OOE+00 1.50E-02 Cs-134 <1.01E-02 0.OOE+00 1.01E-02 Cs-137 <1.34E-02 0.00E+00 1.34E-02 Be-7 <5.64E-02 0.OOE+00 5.64E-02 K-40 5.55E-01 1.03E-01 1.42E-01 Sample ID: 258018 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.14E-02 0.00E+00 1.14E-02 Cs-1 34 <6.31 E-03 0.00E+00 6.31 E-03 Cs-137 <1.15E-02 0.00E+00 1.15E-02 Be-7 <7.99E-02 0.00E+00 7.99E-02 K-40 4.77E-01 7.84E-02 9.28E-02 Sample ID: 258264 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.20E-02 0.00E+00 3.20E-02 Cs-1 34 <1.51E-02 0.00E+00 1.51 E-02 Cs-1 37 <1.85E-02 0.OOE+00 1.85E-02 Be-7 <1.81 E-01 0.00E+00 1.81E-01 K-40 5.32E-01 1.29E-01 2.69E-01 Sample ID: 258600 Sample Dates: 5126/2013

-613/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.32E-02 0.00E+00 2.32E-02 Cs-134 <1.64E-02 0.OOE+00 1.64E-02 Cs-1 37 <1.66E-02 0.OOE+00 1.66E-02 Be-7 <9.56E-02 0.OOE+00 9.56E-02 K-40 2.50E-01 7.54E-02 6.14E-02 Sample ID: 259074 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.64E-02 0.00E+00 1.64E-02 Cs-134 <6.61 E-03 0.OOE+00 6.61 E-03 Cs-137 <1.35E-02 0.OOE+00 1.35E-02 Be-7 <9.39E-02 0.OOE+00 9.39E-02 K-40 <4.27E-01 0.00E+00 4.27E-01 Sample ID: 259638 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <1.52E-02 0.OOE+00 1.52E-02 Cs-1 37 <1.80E-02 0.00E+00 1.80E-02 Be-7 <1.09E-01 0.OOE+00 1.09E-01 K-40 6.35E-01 1.22E-01 2.12E-01 Sample ID: 260270 Sample Dates: 6/18/2013

-6/2412013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.78E-02 0.00E+00 1.78E-02 Cs-1 34 <1.08E-02 0.00E+00 1.08E-02 Cs-1 37 <9.62E-03 0.00E+00 9.62E-03 Be-7 <7.73E-02 0.00E+00 7.73E-02 K-40 4.25E-01 9.00E-02 1.22E-01 Sample ID: 260742 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.46E-02 0.00E+00 1.46E-02 Cs-1 34 <1.57E-02 0.00E+00 1.57E-02 Cs-137 <1.31E-02 0.OOE+00 1.31 E-02 Be-7 <1.03E-01 0.00E+00 1.03E-01 K-40 4.26E-01 1.20E-01 1.65E-01 (1) Analysis results generated by Haris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 37 of 120 Duke Energy Annual Report -Appendix E .13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 3 [ INDICATOR

-N @ 0.5 miles ]Sample ID: 261681 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.68E-02 0.OOE+00 1.68E-02 Cs-1 34 <1.09E-02 0.00E+00 1.09E-02 Cs-137 <1.18E-02 0.OOE+00 1.18E-02 Be-7 <9.37E-02 O.OOE+00 9.37E-02 K-40 3.84E-01 8.82E-02 5.47E-02 Sample ID: 261948 Sample Dates: 6/2412013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.32E-02 0.00E+00 2.32E-02 Cs-1 34 <1.70E-02 0.00E+00 1.70E-02 Cs-1 37 <1.94E-02 0.00E+00 1.94E-02 Be-7 <1.10E-01 0.00E+00 1.10E-01 K-40 4.83E-01 1.14E-01 2.30E-01 Sample ID: 262191 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.03E-02 0.00E+00 2.03E-02 Cs-1 34 <1.38E-02 0.00E+00 1.38E-02 Cs-1 37 <2.01 E-02 O.OOE+00 2.01 E-02 Be-7 <9.75E-02 0.00E+00 9.75E-02 K-40 6.57E-01 1.32E-01 2.51E-01 Sample ID: 263647 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.14E-02 0.00E+00 2.14E-02 Cs-1 34 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <9.40E-03 O.OOE+00 9.40E-03 Be-7 <1.59E-01 0.OOE+00 1.59E-01 K-40 3.74E-01 1.25E-01 2.59E-01 Sample ID: 265037 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.90E-02 0.OOE+00 3.90E-02 Cs-1 34 <2.22E-02 0.OOE+00 2.22E-02 Cs-1 37 <1.74E-02 0.OOE+00 1.74E-02 Be-7 <1.52E-01 0.OOE+00 1.52E-01 K-40 <4.93E-01 0.00E+00 4.93E-01 Sample ID: 266654 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.78E-02 0.OOE+00 1.78E-02 Cs-134 <1.78E-02 0.OOE+00 1.78E-02 Cs-137 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.68E-01 0.OOE+00 1.68E-01 K-40 <4.62E-01 0.OOE+00 4.62E-01 Sample ID: 267534 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.61E-02 0.OOE+00 2.61E-02 Cs-1 34 <1.41E-02 0.00E+00 1.41 E-02 Cs-1 37 <1.62E-02 0.OOE+00 1.62E-02 Be-7 <1.20E-01 0.OOE+00 1.20E-01 K-40 2.50E-01 1.01E-01 2.15E-01 Sample ID: 268229 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.59E-02 0.OOE+00 2.59E-02 Cs-1 34 <1.50E-02 0.OOE+00 1.50E-02 Cs-1 37 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.48E-01 0.OOE+00 1.48E-01 K-40 4.88E-01 1.52E-01 2.80E-01 Sample ID: 269700 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.24E-02 0.00E+00 2.24E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-1 37 <1.21E-02 0.00E+00 1.21E-02 Be-7 <1.29E-01 0.00E+00 1.29E-01 K-40 3.37E-01 1.17E-01 2.75E-01 Sample ID: 270608 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.84E-02 0.00E+00 1.84E-02 Cs-134 <1.99E-02 0.00E+00 1.99E-02 Cs-1 37 <1.76E-02 0.00E+00 1.76E-02 Be-7 <1.32E-01 0.00E+00 1.32E-01 K-40 <5.39E-01 0.00E+00 5.39E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 ..EnRad Laboratories Appendix E -Page 38 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road-I-Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 3 [ INDICATOR

-N @ 0.5 miles ]Sample ID: 271329 Sample Dates: 91912013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.79E-02 0.00E+00 1.79E-02 Cs-1 34 <1.90E-02 0.OOE+00 1.90E-02 Cs-1 37 <1.91E-02 0.00E+00 1.91E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 3.22E-01 9.30E-02 2.46E-01 Sample ID: 271714 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.48E-02 0.00E+00 2.48E-02 Cs-1 34 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.39E-02 0.00E+00 1.39E-02 Be-7 <1.19E-01 0.00E+00 1.19E-01 K-40 <5.19E-01 0.OOE+00 5.19E-01 Sample ID: 272353 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.33E-02 0.OOE+00 2.33E-02 Cs-134 <1.29E-02 0.OOE+00 1.29E-02 Cs-137 <1.99E-02 0.OOE+00 1.99E-02 Be-7 <1.66E-01 0.00E+00 1.66E-01 K-40 5.89E-01 1.52E-01 2.65E-01 Sample ID: 272771 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.67E-02 0.00E+00 3.67E-02.Cs-1 34 <1.78E-02 0.00E+00 1.78E-02 Cs-137 <2.33E-02 0.00E+00 2.33E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 <5.57E-01 0.00E+00 5.57E-01 Sample ID: 273997 Sample Dates: 10/712013

-10/1412013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.33E-02 0.00E+00 2.33E-02 Cs-134 <1.40E-02 0.OOE+00 1.40E-02 Cs-137 <1.28E-02 0.00E+00 1.28E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 4.84E-01 1.03E-01 5.95E-02 Sample ID: 274243 Sample Dates: 10/14/2013-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.38E-02 0.OOE+00 1.38E-02 Cs-1 34 <7.57E-03 0.00E+00 7.57E-03 Cs-137 <8.10E-03 0.OOE+00 8.10E-03 Be-7 <6.85E-02 0.OOE+00 6.85E-02 K-40 2.07E-01 9.56E-02 1.93E-01 Sample ID: 274615 Sample Dates: 10/21/2013

-10/2812013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.96E-02 0.00E+00 2.96E-02 Cs-134 <1.51E-02 0.00E+00 1.51E-02 Cs-1 37 <2.18E-02 0.00E+00 2.18E-02 Be-7 <1.08E-01 0.00E+00 1.08E-01 K-40 3.78E-01 1.01 E-01 2.04E-01 Sample ID: 275203 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.57E-02 0.00E+00 2.57E-02 Cs-134 <1.88E-02 0.00E+00 1.88E-02 Cs-137 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.51E-01 0.00E+00 1.51E-01 K-40 <5.28E-01 0.00E+00 5.28E-01 Sample ID: 277037 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.44E-02 0.00E+00 2.44E-02 Cs-1 34 <1.32E-02 0.00E+00 1.32E-02 Cs-1 37 <2.23E-02 0.00E+00 2.23E-02 Be-7 <1.12E-01 0.00E+00 1.12E-01 K-40 2.91E-01 1.27E-01 7.14E-02 Sample ID: 277047 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.44E-02 0.00E+00 2.44E-02 Cs-134 <9.06E-03 0.00E+00 9.06E-03 Cs-137 <1.07E-02 0.OOE+00 1.07E-02 Be-7 <1.08E-01 0.OOE+00 1.08E-01 K-40 2.98E-01 1.05E-01 2.71 E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 ., EnRad Laboratories Appendix E -Page 39 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 3 [ INDICATOR

-N @ 0.5 miles ]Sample ID: 277057 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity 1-131 <1.16E-02 Cs-134 <1.07E-02 Cs-137 <7.21 E-03 Be-7 <7.47E-02 K-40 4.85E-01 Sample ID: 278779 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity 1-131 <1.88E-02 Cs-134 <1.69E-02 Cs-137 <2.40E-02 Be-7 <1.69E-01 K-40 2.94E-01 Sigma Error (1) LLD 0.00E+00 1.16E-02 0.OOE+00 1.07E-02 0.OOE+00 7.21 E-03 0.00E+00 7.47E-02 9.53E-02 1.39E-01 Sigma Error (1) LLD 0.OOE+00 1.88E-02 0.OOE+00 1.69E-02 0.OOE+00 2.40E-02 0.OOE+00 1.69E-01 8.86E-02 2.79E-01 Sample ID: 278850 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity 1-131 <1.14E-02 Cs-134 <8.51E-03 Cs-137 <6.92E-03 Be-7 3.14E-02 K-40 4.62E-01 Sample ID: 279090 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity 1-131 <2.26E-02 Cs-1 34 <1.22E-02 Cs-137 <1.64E-02 Be-7 <1.47E-01 K-40 3.11E-01 Sample ID: 279718 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity 1-131 <2.09E-02 Cs-134 <6.92E-03 Cs-1 37 <8.37E-03 Be-7 <7.37E-02 K-40 5.37E-01 Sample ID: 280207 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD 0.00E+00 1.14E-02 0.00E+00 8.51E-03 0.OOE+00 6.92E-03 1.97E-02 7.83E-02 7.98E-02 1.19E-01 Sigma Error (1) LLD 0.00E+00 2.26E-02 0.OOE+00 1.22E-02 0.OOE+00 1.64E-02 0.00E+00 1.47E-01 1.17E-01 1.93E-01 Sigma Error(1) LLD 0.OOE+00 2.09E-02 0.OOE+00 6.92E-03 0.00E+00 8.37E-03 0.OOE+00 7.37E-02 9.17E-02 1.51E-01 1-131 <1.96E-02 Cs-1 34 <6.20E-03 Cs-1 37 <9.73E-03 Be-7 <6.54E-02 K-40 6.61 E-01 Sigma Error 0.OOE+00 0.00 E+00 0.00 E+00 0.00 E+00 9.281E-02 1) LLD 1 .96E-02 6.20E-03 9.73E-03 6.54E-02 1.OQE-Ol Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles]Sample ID: 177514 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity 1-131 <1.59E-02 Sigma Error (1) LLD 0OOE+00 1.59E-02 Sample ID: 177577 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.37E-02 0.00E+00 1.37E-02 Sample ID: 177622 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.65E-02 0.00E+00 1.65E-02 Sample ID: 177656 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.51E-02 0.OOE+00 2.51E-02 Sample ID: 177690 Sample Dates: 2/4/2013 -214/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.53E-02 0.OOE+00 1.53E-02 Sample ID: 177735 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.37E-02 0.OOE+00 1.37E-02 Sample ID: 177773 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.61E-02 0.OOE+00 1.61E-02 Sample ID: 177844 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.59E-02 0.OOE+00 1.59E-02 Sample ID: 177880 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.59E-02 0.OOE+00 1.59E-02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories E.' 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 40 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles ]Sample ID: 177929 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.86E-02 0.OOE+00 1.86E-02 Sample ID: 177965 Sample Dates: 3118/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.73E-02 O.OOE+00 1.73E-02 Sample ID: 177992 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.53E-02 0.00E+00 1.53E-02 Sample ID: 178026 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.86E-02 0.00E+00 1.86E-02 Sample ID: 178096 Sample Dates: 4/8/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.72E-02 0.OOE+00 1.72E-02 Sample ID: 256291 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.82E-03 0.00E+00 7.82E-03 Cs-134 <9.74E-03 0.00E+00 9.74E-03 Cs-137 <1.32E-02 0.OOE+00 1.32E-02 Be-7 <6.52E-02 0.OOE+00 6.52E-02 K-40 3.17E-01 6.35E-02 1.66E-01 Sample ID: 256649 Sample Dates: 4/16/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.08E-02 0.00E+00 2.08E-02 Cs-134 <1.12E-02 0.00E+00 1.12E-02 Cs-137 <1.19E-02 0.00E+00 1.19E-02 Be-7 <1.05E-01 0.OOE+00 1.05E-01 K-40 4.07E-01 9.09E-02 1.48E-01 Sample ID: 257183 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.14E-02 0.00E+00 1.14E-02 Cs-134 <9.07E-03 0.00E+00 9.07E-03 Cs-137 <1.43E-02 0.00E+00 1.43E-02 Be-7 <8.04E-02 0.00E+00 8.04E-02 K-40 4.05E-01 9.08E-02 1.49E-01 Sample ID: 257328 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.54E-02 0.00E+00 1.54E-02 Cs-134 <1.23E-02 0.00E+00 1.23E-02 Cs-137 <1.24E-02 0.00E+00 1.24E-02 Be-7 <7.77E-02 0.00E+00 7.77E-02 K-40 2.03E-01 7.23E-02 3.62E-02 Sample ID: 267773 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.13E-03 0.00E+00 7.13E-03 Cs-134 <4.85E-03 0.00E+00 4.85E-03 Cs-1 37 <5.62E-03 0.00E+00 5.62E-03 Be-7 <4.03E-02 0.00E+00 4.03E-02 K-40 5.12E-01 4.55E-02 6.64E-02 Sample ID: 258019 Sample Dates: 5/13/2013

-6/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E-02 0.00E+00 1.50E-02 Cs-134 <2.37E-03 0.00E+00 2.37E-03 Cs-137 <1.14E-02 0.00E+00 1.14E-02 Be-7 <7.18E-02 0.00E+00 7.18E-02 K-40 2.06E-01 6.22E-02 5.07E-02 Sample ID: 258265 Sample Dates: 5/2012013

-5126/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.32E-02 0.OOE+00 3.32E-02 Cs-1 34 <2.15E-02 0.00E+00 2.15E-02 Cs-1 37 <1.82E-02 0.00E+00 1.82E-02 Be-7 <1.33E-01 0.00E+00 1.33E-01 K-40 6.45E-01 1.41 E-01 2.21E-01 Sample ID: 258601 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.55E-02 0.00E+00 2.55E-02 Cs-1 34 <7.87E-03 0.00E+00 7.87E-03 Cs-1 37 <9.01 E-03 0.00E+00 9.01E-03 Be-7 <9.36E-02 0.00E+00 9.36E-02 K-40 2.68E-01 9.71 E-02 1.68E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -". EnRad Laboratories Appendix E -Page 41 of 120 Duke Energy Annual Report -Appendix E E 13339 Hagers Ferry Road--- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles ]Sample ID: 269075 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.44E-02 0.00E+00 1.44E-02 Cs-134 <8.37E-03 0.00E+00 8.37E-03 Cs-137 <1.18E-02 0.00E+00 1.18E-02 Be-7 <8.16E-02 0.00E+00 8.16E-02 K-40 4.37E-01 9.97E-02 3.70E-02 Sample ID: 259639 Sample Dates: 611012013

-611812013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.22E-02 0.OOE+00 2.22E-02 Cs-1 34 <1.47E-02 0.OOE+00 1.47E-02 Cs-1 37 <1.49E-02 0.OOE+00 1.49E-02 Be-7 <9.29E-02 0.00E+00 9.29E-02 K-40 3.87E-01 1.13E-01 6.49E-02 Sample ID: 260271 Sample Dates: 6/1812013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.77E-02 0.00E+00 1.77E-02 Cs-134 <1.61E-02 0.OOE+00 1.61E-02 Cs-137 <9.51E-03 0.00E+00 9.51E-03 Be-7 <1.14E-01 0.00E+00 1.14E-01 K-40 2.77E-01 7.99E-02 2.14E-01 Sample ID: 260743 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.45E-02 0.OOE+00 1.45E-02 Cs-1 34 <7.94E-03 0.00E+00 7.942-03 Cs-1 37 <1.31E-02 0.OOE+00 1.31 E-02 Be-7 <4.68E-02 0.OOE+00 4.68E-02 K-40 4.02E-01 8.43E-02 9.69E-02 Sample ID: 261682 Sample Dates: 7/8/2013 -7/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.32E-02 0.00E+00 1.32E-02 Cs-134 <8.03E-03 0.00E+00 8.03E-03 Cs-137 <1.24E-02 0.00E+00 1.24E-02 Be-7 <9.71E-02 0.00E+00 9.71E-02 K-40 4.80E-01 7.78E-02 9.16E-02 Sample ID: 261949 Sample Dates: 6/24/2013

-7/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.27E-02 0.00E+00 2.27E-02 Cs-1 34 <2.46E-02 0.00E+00 2.46E-02 Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.58E-01 0.00E+00 1.58E-01 K-40 5.15E-01 1.18E-01 7.33E-02 Sample ID: 262192 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.80E-02 0.00E+00 1.80E-02 Cs-134 <1.83E-02 0.00E+00 1.83E-02 Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.62E-01 0.00E+00 1.62E-01 K-40 <5.01E-01 0.00E+00 5.01E-01 Sample ID: 263648 Sample Dates: 7/29/2013

-8/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.56E-02 0.00E+00 2.56E-02 Cs-134 <1.57E-02 0.00E+00 1.57E-02 Cs-1 37 <2.02E-02 0.00E+00 2.02E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 5.33E-01 1.22E-01 3.78E-01 Sample ID: 265038 Sample Dates: 7122/2013

-712912013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.58E-02 0.00E+00 3.58E-02 Cs-134 <1.96E-02 0.00E+00 1.96E-02 Cs-137 <1.08E-02 0.00E+00 1.08E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 3.75E-01 1.00E-01 1.92E-01 Sample ID: 266655 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.84E-02 0.00E+00 1.84E-02 Cs-134 <1.69E-02 0.00E+00 1.69E-02 Cs-137 <1.41E-02 0.00E+00 1.41E-02 Be-7 <1.46E-01 0.00E+00 1.46E-01 K-40 5.26E-01 1.21E-01 3.23E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 42 of 120 Duke Energy Annual Report -Appendix E [ 13339 Hagers Ferry Road-: Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles I Sample ID: 267535 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.22E-02 0.00E+00 2.22E-02 Cs-134 <1.04E-02 0.0OE+00 1.04E-02 Cs-137 <1.55E-02 0.00E+00 1.55E-02 Be-7 <1.01E-01 0.OOE+00 1.01E-01 K-40 4.33E-01 1.02E-01 2.80E-01 Sample ID: 268230 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.50E-02 0.00E+00 2.50E-02 Cs-1 34 <1.95E-02 0.00E+00 1.95E-02 Cs-137 <1.63E-02 0.00E+00 1.63E-02 Be-7 <1.45E-01 0.00E+00 1.45E-01 K-40 6.71 E-01 1.46E-01 2.30E-01 Sample ID: 269701 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.31E-02 0.OOE+00 1.31E-02 Cs-1 34 <7.29E-03 0.OOE+00 7.29E-03 Cs-1 37 <1.29E-02 0.OOE+00 1.29E-02 Be-7 <9.13E-02 0.00E+00 9.13E-02 K-40 <3.52E-01 0.00E+00 3.52E-01 Sample ID: 270609 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.72E-02 0.00E+00 2.72E-02 Cs-134 <2.46E-02 O.OOE+00 2.46E-02 Cs-137 <2.42E-02 0.OOE+00 2.42E-02 Be-7 <1.26E-01 0.OOE+00 1.26E-01 K-40 3.67E-01 1.63E-01 3.55E-01 Sample ID: 271330 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.92E-02 0.OOE+00 2.92E-02 Cs-134 <2.01E-02 O.OOE+00 2.01E-02 Cs-137 <1.92E-02 0.OOE+00 1.92E-02 Be-7 <1.27E-01 0.OOE+00 1.27E-01 K-40 5.13E-01 1.18E-01 2.34E-01 Sample ID: 271715 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.63E-02 0.OOE+00 2.63E-02 Cs-134 <1.76E-02 0.00E+00 1.76E-02 Cs-137 <2.00E-02 0.00E+00 2.00E-02 Be-7 <1.46E-01 0.006+00 1.466-01 K-40 4.24E-01 1.09E-01 2.53E-01 Sample ID: 272354 Sample Dates: 9(23(2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.59E-02 0.00E+00 2.59E-02 Cs-1 34 <1.76E-02 0.00E+00 1.76E-02 Cs-1 37 <1.82E-02 0.00E+00 1.82E-02 Be-7 <1.70E-01 0.00E+00 1.70E-01 K-40 <4.37E-01 0.00E+00 4.37E-01 Sample ID: 272772 Sample Dates: 9/30/2013

-10/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.52E-02 0.00E+00 6.52E-02 Cs-1 34 <3.07E-02 0.00E+00 3.07E-02 Cs-1 37 <3.86E-02 0.00E+00 3.86E-02 Be-7 <2.60E-01 0.00E+00 2.60E-01 K-40 1.34E+00 2.11E-01 3.72E-01 Sample ID: 273998 Sample Dates: 1017(2013

-10(14(2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.88E-02 0.OOE+00 6.88E-02 Cs-134 <3.57E-02 0.O0E+00 3.57E-02 Cs-1 37 <3.29E-02 0.00E+00 3.29E-02 Be-7 <4.26E-01 0.00E+00 4.26E-01 K-40 1.11E+00 2.48E-01 5.07E-01 Sample ID: 274244 Sample Dates: 10(14/2013

-10(21(2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.89E-02 0.006+00 2.89E-02 Cs-134 <1.67E-02 0.00E+00 1.67E-02 Cs-1 37 <2.50E-02 0.00E+00 2.50E-02 Be-7 <1.48E-01 0.00E+00 1.48E-01 K-40 <5.05E-01 0.00E+00 5.05E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 43 of 120 Duke Energy Annual Report -Appendix E An .13339 Hagers Ferry Road D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles ]Sample ID: 274616 Sample Dates: 1012112013

-10/2812013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.19E-02 O.OOE+00 1.19E-02 Cs-1 34 <1.46E-02 0.00E+00 1.46E-02 Cs-137 <1.69E-02 O.OOE+00 1.69E-02 Be-7 <9.74E-02 0.00E+00 9.74E-02 K-40 <4.71E-01 0.00E+00 4.71E-01 Sample ID: 276204 Sample Dates: 10/28/2013

-111412013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.16E-02 O.OOE+00 2.16E-02 Cs-134 <1.88E-02 0.OOE+00 1.88E-02 Cs-137 <1.88E-02 0.00E+00 1.88E-02 Be-7 <1.58E-01 0.OOE+00 1.58E-01 K-40 3.84E-01 1.02E-01 7.40E-02 Sample ID: 277038 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.78E-02 0.OOE+00 1.78E-02 Cs-1 34 <1.54E-02 0.OOE+00 1.54E-02 Cs-137 <1.82E-02 0.OOE+00 1.82E-02 Be-7 <1.40E-01 0.OOE+00 1.40E-01 K-40 <3.77E-01 0.OOE+00 3.77E-01 Sample ID: 277048 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.50E-02 O.00E+00 2.50E-02 Cs-134 <8.89E-03 0.OOE+00 8.89E-03 Cs-137 <8.51E-03 O.OOE+00 8.51E-03 Be-7 <7.60E-02 O.OOE+00 7.60E-02 K-40 <3.69E-01 O.OOE+00 3.69E-01 Sample ID: 277058 Sample Dates: 11/11/2013-11/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.20E-02 0.00E+00 1.20E-02 Cs-134 <6.50E-03 O.OOE+00 6.50E-03 Cs-137 <1.48E-02 0.OOE+00 1.48E-02 Be-7 <1.06E-01 0.OOE+00 1.06E-01 K-40 2.74E-01 7.31 E-02 1.67E-01 Sample ID: 278780 Sample Dates: 11/26/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.38E-02 0.OOE+00 2.38E-02 Cs-1 34 <1.73E-02 O.OOE+00 1 .73E-02 Cs-137 <1.53E-02 0.00E+00 1.53E-02 Be-7 <1.30E-01 0.OOE+00 1.30E-01 K-40 2.72E-01 1.13E-01 2.99E-01 Sample ID: 278851 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.03E-02 0.OOE+00 1.03E-02 Cs-134 <1.15E-02 0.OOE+00 1.15E-02 Cs-137 <1.17E-02 0.OOE+00 1.17E-02 Be-7 <8.86E-02 0.OOE+00 8.86E-02 K-40 6.79E-01 9.32E-02 9.77E-02 Sample ID: 279091 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.62E-02 0.OOE+00 2.62E-02 Cs-134 <2.08E-02 O.OOE+00 2.08E-02 Cs-137 <1.77E-02 0.OOE+00 1.77E-02 Be-7 <1.03E-01 0.OOE+00 1.03E-01 K-40 4.70E-01 1.14E-01 3.23E-01 Sample ID: 279719 Sample Dates: 12/16/2013

-12123/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.38E-02 O.OOE+00 2.38E-02 Cs-134 <1.17E-02 O.OOE+00 1.17E-02 Cs-1 37 <1.67E-02 0.OOE+00 1 .67E-02 Be-7 <1.04E-01 0.00E+00 1.04E-01 K-40 <3.37E-01 0.00E+00 3.37E-01 Sample ID: 280208 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.21E-02 0.OOE+00 1.21E-02 Cs-1 34 <6.69E-03 O.OOE+00 6.69E-03 Cs-1 37 <1 33E-02 0.OOE+00 1.33E-02 Be-7 <9.31E-02 O.OOE+00 9.31E-02 K-40 <4.92E-01 O.OOE+00 4.92E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -.. EnRad Laboratories Appendix E -Page 44 of 120 Duke Energy Annual Report -Appendix E E13339 Hagers Ferry Road--- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report- 2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles ]Sample ID: 177515 Sample Dates: 11712013 1-712013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.39E-02 0.00E+00 1.39E-02 Sample ID: 177578 Sample Dates: 111412013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.56E-02 O.OOE+00 1.56E-02 Sample ID: 177623 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.17E-02 O.OOE+00 1.17E-02 Sample ID: 177657 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.67E-02 O.OOE+00 1.67E-02 Sample ID: 177691 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.23E-02 O.OOE+00 2.23E-02 Sample ID: 177736 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.65E-02 O.OOE+O0 1.65E-02 Sample ID: 177774 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.02E-02 0.00E+00 1.02E-02 Sample ID: 177845 Sample Dates: 2/2512013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.01E-02 O.00E+00 2.01E-02 Sample ID: 177881 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.38E-02 O.OOE+00 1.38E-02 Sample ID: 177930 Sample Dates: 3/11/2013

-3/1112013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.72E-02 O.OOE+00 1.72E-02 Sample ID: 177966 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.20E-02 0.OOE+00 2.20E-02 Sample ID: 177993 Sample ID: 178027 Sample Dates: 3/24/2013

-3/24/2013 Nuclide 1-131 Activity<2.19E-02 Sigma Error (1) LLD O.OOE+00 2.19E-02 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1)1-131 <1.59E-02 O.00E+00 LLD 1.59E-02 Sample ID: 178097 Sample ID: 256292 Sample ID: 256650 Sample ID: 257184 Sample ID: 257329 Sample Dates: 418/2013 -4/8/2013 Nuclide Activity 1-131 <1.67E-02 Sigma Error (1) LLD 0.OOE+00 1.67E-02 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1)1-131 <1.50E-02 O.OOE+00 Cs-1 34 <6.93E-03 0.OOE+00 Cs-1 37 <1.07E-02 O.OOE+00 Be-7 <7.02E-02 O.OOE+00 K-40 3.18E-01 6.35E-02 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1)1-131 <1.95E-02 0.OOE+00 Cs-1 34 <1.39E-02 O.OOE+00 Cs-137 <1.04E-02 0.OOE+00 Be-7 <1.19E-01 O.OOE+00 K-40 <3.58E-01 O.OOE+00 LLD 11.50E-02 6.93E-03 1.07E-02 7.02E-02 9.20E-02 LLD 1.95E-02 1.39E-02 1.04E-02 1.19E-01 3.58E-01 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.60E-02 0.OOE+00 1.60E-02 Cs-1 34 <9.25E-03 0.OOE+00 9.25E-03 Cs-1 37 <1.35E-02 O.OOE+00 1.35E-02 Be-7 <5.95E-02 0.OOE+00 5.95E-02 K-40 3.77E-01 7.12E-02 3.64E-02 Nuclide Activity Sigma Error (1) LLD 1-131 <1.48E-02 0.OOE+00 1.48E-02 Cs-134 <8.34E-03 0.00E+00 8.34E-03 Cs-137 <1.14E-02 O.OOE+00 1.14E-02 Be-7 <8.55E-02 0.OOE+00 8.55E-02 K-40 4.59E-01 9.58E-02 5.40E-02 Sample Dates: 4/29/2013

-616/2013 Sample ID: 257774 Sample Dates: 5/6/2013 -511312013 Nuclide 1-131 Activity Sigma Error (1) LLD<1.23E-02 0.OOE+00 1.23E-02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories Eli, 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 45 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles ]Sample ID: 257774 Sample Dates: 516/2013 -511312013 Nuclide Activity Sigma Error (1) LLD Cs-134 <8.66E-03 0.OOE+00 8.66E-03 Cs-137 <1.14E-02 0.OOE+00 1.14E-02 Be-7 <5.32E-02 0.00E+00 5.32E-02 K-40 4.84E-01 8.08E-02 9.86E-02 Sample ID: 258020 Sample Dates: 511312013

-5120/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.69E-02 0.00E+00 1.69E-02 Cs-134 <9.58E-03 0.OOE+00 9.58E-03 Cs-137 <1.12E-02 0.00E+00 1.12E-02 Be-7 <7.91 E-02 0.OOE+00 7.91E-02 K-40 2.43E-01 7.65E-02 3.55E-02 Sample ID: 258266 Sample Dates: 5/20/2013

-5/2612013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.49E-02 0.OOE+00 3.49E-02 Cs-1 34 <1.57E-02 0.00E+00 1.57E-02 Cs-1 37 <2.14E-02 0.OOE+00 2.14E-02 Be-7 <1.90E-01 0.OOE+00 1.90E-01 K-40 6.16E-01 1.41E-01 8.76E-02 Sample ID: 258602 Sample Dates: 6126/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.58E-02 0.OOE+00 2.58E-02 Cs-1 34 <1.79E-02 0.OOE+00 1.79E-02 Cs-1 37 <1.63E-02 0.OOE+00 1.63E-02 Be-7 <1.51E-01 0.00E+00 1.51E-01 K-40 <5.15E-01 0.00E+00 5.15E-01 Sample ID: 259076 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.56E-02 O.OOE+00 1.56E-02 Cs-1 34 <7.86E-03 0.00E+00 7.86E-03 Cs-137 <1.44E-02 0.OOE+00 1.44E-02 Be-7 <8.40E-02 0.00E+00 8.40E-02 K-40 6.16E-01 9.09E-02 3.62E-02 Sample ID: 259640 Sample Dates: 6/10/2013

-6/1812013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.47E-02 0.OOE+00 2.47E-02 Cs-1 34 <1.61E-02 0.00E+00 1.61E-02 Cs-1 37 <1.33E-02 0.00E+00 1.33E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 <5.11E-01 0.00E+00 5.11E-01 Sample ID: 260272 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.18E-02 0.OOE+00 1.18E-02 Cs-134 <6.76E-03 0.OOE+00 6.76E-03 Cs-137 <8.86E-03 0.00E+00 8.86E-03 Be-7 <6.33E-02 0.00E+00 6.33E-02 K-40 6.23E-01 7.93E-02 9.46E-02 Sample ID: 260744 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.34E-02 0.00E+00 1.34E-02 Cs-134 <1.15E-02 0.00E+00 1.15E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <8.33E-02 0.00E+00 8.33E-02 K-40 3.76E-01 9.39E-02 6.34E-02 Sample ID: 261683 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.57E-03 0.00E+00 7.57E-03 Cs-1 34 <9.46E-03 0.00E+00 9.46E-03 Cs-137 <8.19E-03 0.00E+00 8.19E-03 Be-7 <8.31E-02 0.00E+00 8.31 E-02 K-40 <3.83E-01 0.00E+00 3.83E-01 Sample ID: 261950 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.41E-02 0.00E+00 2.41E-02 Cs-1 34 <1.93E-02 0.00E+00 1.93E-02 Cs-1 37 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.52E-01 0.00E+00 1.52E-01 K-40 <5.71E-01 0.00E+00 5.71E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 46 of 120 Duke Energy Annual Report -Appendix E EU 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles I Sample ID: 262193 Sample Dates: 7/15/2013

-7/2212013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.58E-02 0.00E+00 2.58E-02 Cs-134 <1.97E-02 O.OOE+00 1.97E-02 Cs-137 <2.70E-02 O.00E+00 2.70E-02 Be-7 <1.65E-01 O.OOE+00 1.65E-01 K-40 3.41E-01 1.44E-01 7.61 E-02 Sample ID: 263649 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.01E-02 O.OOE+00 2.01E-02 Cs-1 34 <1.59E-02 0.OOE+00 1.59E-02 Cs-137 <1.76E-02 O.OOE+00 1.76E-02 Be-7 <1.76E-01 0.00E+00 1.76E-01_K-40 5.OOE-01 1.1BE-01 2.09E-01 Sample ID: 265039 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.58E-02 O.OOE+00 3.58E-02 Cs-1 34 <1.49E-02 0.OOE+00 1.49E-02 Cs-1 37 <2.40E-02 0.OOE+00 2.40E-02 Be-7 <1.60E-01 0.OOE+00 1.60E-01 K-40 3.94E-01 1.05E-01 7.60E-02 Sample ID: 266656 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.16E-02 O.OOE+00 2.16E-02 Cs-1 34 <2.12E-02 0.00E+00 2.12E-02 Cs-1 37 <1.44E-02 O.OOE+00 1.44E-02 Be-7 <1.74E-01 0.00E+00 1.74E-01 K-40 5.26E-01 1.50E-01 3.10E-01 Sample ID: 267536 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.78E-02 0.OOE+00 1.78E-02 Cs-1 34 <9.48E-03 0.OOE+00 9.48E-03 Cs-1 37 <8.28E-03 0.00E+00 8.28E-03 Be-7 <9.41 E-02 0.OOE+00 9.41E-02 K-40 2.75E-01 8.52E-02 1.54E-01 Sample ID: 268231 Sample Dates: 8/20/2013

-8126/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.1OE-02 0.OOE+00 3.10E-02 Cs-1 34 <2.07E-02 O.OOE+00 2.07E-02 Cs-1 37 <2.32E-02 O.OOE+00 2.32E-02 Be-7 <1.59E-01 0.00E+00 1.59E-01 K-40 5.49E-01 1.33E-01 2.32E-01 Sample ID: 269702 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.33E-02 0.00E+00 2.33E-02 Cs-1 34 <1.69E-02 O.00E+00 1.69E-02 Cs-137 <1.41 E-02 0.OOE+00 1.41 E-02 Be-7 <8.84E-02 O.OOE+00 8.84E-02 K-40 2.93E-01 8.45E-02 1.75E-01 Sample ID: 270610 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.04E-02 O.OOE+00 2.04E-02 Cs-1 34 <2.OOE-02 0.OOE+00 2.OOE-02 Cs-1 37 <1.90E-02 O.OOE+00 1.90E-02 Be-7 <1.87E-01 O.OOE+00 1.87E-01 K-40 7.06E-01 1.50E-01 8.67E-02 Sample ID: 271331 Sample Dates: 9/9/2013 -9/1612013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.14E-02 0.00E+00 2.14E-02 Cs-134 <1.98E-02 0.OOE+00 1.98E-02 Cs-137 <1.62E-02 O.OOE+00 1.62E-02 Be-7 <1.70E-01 O.OOE+00 1.70E-01 K-40 <5.08E-01 0.OOE+00 5.08E-01 Sample ID: 271716 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.26E-02 O.00E+00 2.26E-02 Cs-134 <1.82E-02 O.OOE+00 1.82E-02 Cs-1 37 <1.99E-02 O.OOE+00 1.99E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 4.27E-01 1.10E-01 2.15E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 47 of 120 Duke Energy Annual Report -Appendix E [ 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles ]Sample ID: 272355 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.78E-02 0.00E+00 2.78E-02 Cs-134 <2.12E-02 0.00E+00 2.12E-02 Cs-137 <2.02E-02 O.OOE+00 2.02E-02 Be-7 <1.39E-01 0.O0E+00 1.39E-01 K-40 3.84E-01 1.77E-01 4.17E-01 Sample ID: 272773 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.46E-02 0.00E+00 2.46E-02 Cs-134 <1.21E-02 O.OOE+00 1.21E-02 Cs-1 37 <1.66E-02 O.OOE+00 1.66E-02 Be-7 <1.18E-01 O.OOE+00 1.18E-01 K-40 4.19E-01 1.08E-01 2.12E-01 Sample ID: 273999 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.87E-02 O.00EOO 1.87E-02 Cs-1 34 <7.63E-03 O.00E+00 7.63E-03 Cs-137 <9.81E-03 O.OOE+00 9.81E-03 Be-7 <4.54E-02 O.OOE+00 4.54E-02 K-40 5.48E-01 7.92E-02 8.28E-02 Sample ID: 274245 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.49E-02 0.00E+00 1.49E-02 Cs-134 <1.15E-02 O.OOE+00 1.15E-02 Cs-137 <1.67E-02 O.OOE+00 1.67E-02 Be-7 <5.65E-02 O.OOE+00 5.65E-02 K-40 2.99E-01 1.12E-01 1.57E-01 Sample ID: 274617 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.45E-02 0.00E+00 1.45E-02 Cs-134 <9.20E-03 O.OOE+00 9.20E-03 Cs-1 37 <1.03E-02 O.OOE+00 1.03E-02 Be-7 <6.77E-02 O.OOE+O0 6.77E-02 K-40 <2.94E-01 O.OOE+00 2.94E-01 Sample ID: 275205 Sample Dates: 10/2812013

-11/412013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.38E-02 O.OOE+00 2.38E-02 Cs-134 <1.69E-02 O.OOE+00 1.69E-02 Cs-137 <2.06E-02 O.OOE+00 2.06E-02 Be-7 <1.24E-01 O.OOE+00 1.24E-01 K-40 3.87E-01 1.04E-01 2.50E-01 Sample ID: 277039 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.60E-02 O.OOE+00 2.60E-02 Cs-134 <2.10E-02 O.00E+00 2.10E-02 Cs-137 <1.42E-02 O.OOE+00 1.42E-02 Be-7 <1.33E-01 O.OOE+00 1.33E-01 K-40 <4.71 E-01 O.OOE+00 4.71E-01 Sample ID: 277049 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.36E-02 O.OOE+00 3.36E-02 Cs-1 34 <1.11 E-02 O.OOE+00 1. 11E-02 Cs-137 <1.17E-02 O.OOE+00 1.17E-02 Be-7 <1.18E-01 O.OOE+00 1.18E-01 K-40 5.90E-01 1.18E-01 6.38E-02 Sample ID: 277059 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.18E-02 O.OOE+00 1.18E-02 Cs-1 34 <9.04E-03 O.OOE+00 9.04E-03 Cs-137 <1.39E-02 O.OOE+00 1.39E-02 Be-7 <9.73E-02 O.OOE+00 9.73E-02 K-40 4.50E-01 7.60E-02 9.25E-02 Sample ID: 278781 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.76E-02 O.OOE+00 6.76E-02 Cs-134 <1.88E-02 O.OOE+00 1.88E-02 Cs-1 37 <1.28E-02 O.OOE+00 1 .28E-02 Be-7 <1.39E-01 O.OOE+00 1.39E-01 K-40 3.28E-01 1.56E-01 3.22E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -R .EnRad Laboratories Appendix E -Page 48 of 120 Duke Energy Annual Report -Appendix E E. ; 13339 Hagers Ferry Road Duke E yHuntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles ]Sample ID: 278852 Sample Dates: 12/212013

-12/9/2013 Nuclide Activity 1-131 <2.12E-02 Cs-1 34 <2.04E-02 Cs-137 <1.74E-02 Be-7 <1.55E-01 K-40 <5.41E-01 Nuclide Activity 1-131 <2.19E-02 Cs-134 <1.70E-02 Cs-137 <1.63E-02 Be-7 <1.34E-01 Sigma Error(1)0.00E+00 0.OOE+00 0.00E+00 0.00E+00 0.00E+00 Sigma Error (1)O.OOE+00 O.OOE+00 0.00E+00 0.00E+00 LLD 2.12E-02 2.04E-02 1.74E-02 1.55E-01 5.41E-01 LLD 2.19E-02 1.70E-02 1.63E-02 1.34E-01 Sample ID: 279092 Sample Dates: 12/912013

-12/16/2013 K-40 <5.52E-01 0.OOE+00 5.52E-01 Sample ID: 279720 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.89E-02 0.OOE+00 2.89E-02 Cs-1 34 <8.06E-03 0.OOE+00 8,06E-03 Cs-1 37 <1.39E-02 0.OOE+00 1.39E-02 Be-7 <1.20E-01 0.OOE+00 1.20E-01 K-40 1.62E-01 1.07E-01 2.55E-01 Sample ID: 280209 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.23E-02 0.00E+00 4.23E-02 Cs-134 <1.05E-02 0.OOE+00 1.05E-02 Cs-137 <1.13E-02 0.OOE+00 1.13E-02 Be-7 <8.16E-02 0.OOE+00 8.16E-02 K-40 4.17E-01 1.08E-01 2.08E-01 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles]Sample ID: 177616 Sample Dates: 1/7/2013 -11112013 Nuclide Activity Sigma Error (1)1-131 <1.49E-02 0.00E+00 Sample ID: 177579 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1)1-131 <1.56E-02 0.OOE+00 LLD 1.49E-02 LLD 1.56E-02 Sample ID: 177624 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.54E-02 0.OOE+00 2.54E-02 Sample ID: 177658 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.16E-02 0.OOE+00 2.16E-02 Sample ID: 177692 Sample Dates: 2/4/2013 -21412013 Nuclide Activity 1-131 <1.14E-02 Sigma Error (1) LLD 0.OOE+00 1.14E-02 Sample ID: 177737 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.35E-02 0.OOE+00 1.35E-02 Sample ID: 177775 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.20E-02 0.OOE+00 2.20E-02 Sample ID: 177846 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity 1-131 <1.68E-02 Sigma Error (1) LLD 0.OOE+00 1.68E-02 Sample ID: 177882 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.70E-02 0.00E+00 1.70E-02 Sample ID: 177931 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.19E-02 0.OOE+00 2.19E-02 Sample ID: 177967 Sample Dates: 3118/2013

-3118/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.37E-02 0.OOE+00 1.37E-02 Sample ID: 177994 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.95E-02 0.OOE+00 1.95E-02 Sample ID: 178028 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.25E-02 0.OOE+00 1.25E-02 Sample ID: 178098 Sample Dates: 4/812013 -4/8/2013 Nuclide Activity Sigma Error (1)1-131 <1.88E-02 0.OOE+00 LLD 1.88E-02 (1) Analysis results generated by Harrs Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 49 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles ]Sample ID: 256382 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.60E-02 0.OOE+00 1.60E-02 Cs-134 <8.23E-03 0.00E+00 8.23E-03 Cs-1 37 <1.63E-02 O.OOE+00 1.63E-02 Be-7 <8.87E-02 O.OOE+00 8.87E-02 K-40 1.70E-01 8.54E-02 2.69E-01 Sample ID: 256652 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.09E-02 0.OOE+00 2.09E-02 Cs-134 <1.15E-02 0.OOE+00 1.15E-02 Cs-137 <1.50E-02 0.00E+00 1.50E-02 Be-7 <9.94E-02 0.00E+00 9.94E-02 K-40 4.99E-01 1.09E-01 2.66E-01 Sample ID: 257186 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E-02 0.OOE+00 1.50E-02 Cs-1 34 <6.36E-03 O.OOE+00 6.36E-03 Cs-1i37 <6.40E-03 0.OOE+00 6.40E-03 Be-7 <1.07E-01 0.OOE+00 1.07E-01 K-40 2.96E-01 7.39E-02 1.69E-01 Sample ID: 257331 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.59E-02 O.OOE+00 1.59E-02 Cs-134 <1.24E-02 O.OOE+00 1.24E-02 Cs-137 <1.61E-02 O.OOE+00 1.61E-02 Be-7 <8.67E-02 0.OOE+00 8.67E-02 K-40 5.33E-01 1.07E-01 1.77E-01 Sample ID: 257776 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.71E-02 0.OOE+00 1.71E-02 Cs-134 <1.13E-02 0.OOE+00 1.13E-02 Cs-137 <7.99E-03 0.OOE+00 7.99E-03 Be-7 <1.31E-01 0.OOE+00 1.31E-01 K-40 <4.65E-01 O.OOE+00 4.65E-01 Sample ID: 258022 Sample Dates: 6/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <8.26E-03 0.OOE+00 8.26E-03 Cs-134 <1.43E-02 0.OOE+00 1.43E-02 Cs-137 <3.OOE-03 O.OOE+00 3.OOE-03 Be-7 <7.73E-02 0.OOE+00 7.73E-02 K-40 2.66E-01 7.39E-02 2.20E-01 Sample ID: 258268 Sample Dates: 6/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.03E-02 O.OOE+00 3.03E-02 Cs-134 <1.99E-02 O.OOE+00 1.99E-02 Cs-137 <4.82E-03 O.OOE+00 4.82E-03 Be-7 <1.47E-01 O.OOE+00 1.47E-01 K-40 <6.89E-01 O.OOE+00 6.89E-01 Sample ID: 258604 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.27E-02 0.OOE+00 2.27E-02 Cs-1 34 <1.47E-02 0.OOE+00 1.47E-02 Cs-137 <1.48E-02 O.OOE+00 1.48E-02 Be-7 <1.62E-01 O.OOE+00 1.62E-01 K-40 <4.70E-01 0.OOE+00 4.70E-01 Sample ID: 259078 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.18E-02 0.OOE+00 1.18E-02 Cs-1 34 <6.67E-03 O.OOE+00 6.67E-03 Cs-137 <8.1OE-03 O.OOE+00 8.1OE-03 Be-7 <7.73E-02 0.OOE+00 7.73E-02 K-40 3.42E-01 6.46E-02 8.94E-02 Sample ID: 259642 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.85E-02 0.OOE+00 1.85E-02 Cs-134 <1.15E-02 o.O0E+00 1.15E-02 Cs-1 37 <1.42E-02 0.00E+00 1.42E-02 Be-7 <1.35E-01 0.OOE+00 1.35E-01 K-40 2.62E-01 9.32E-02 2.30E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 50 of 120 Duke Energy Annual Report -Appendix E [ 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles]Sample ID: 260274 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.50E-02 0.00E+00 2.50E-02 Cs-1 34 <1.49E-02 O.OOE+00 1.49E-02 Cs-1 37 <1.76E-02 O.OOE+00 1.76E-02 Be-7 <1.44E-01 O.OOE+00 1.44E-01 K-40 5.47E-01 1.17E-01 6.72E-02 Sample ID: 260746 Sample Dates: 7/11/2013

-71812013 Nuclide Activity Sigma Error (1) LLD 1-131 <9.94E-03 0.00E+00 9.94E-03 Cs-134 <8.19E-03 0.00E+00 8.19E-03 Cs-137 <9.13E-03 0.00E+00 9.13E-03 Be-7 <6.68E-02 0.00E+00 6.68E-02 K-40 4.14E-01 6.71 E-02 7.93E-02 Sample ID: 261685 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.44E-02 0.00E+00 1.44E-02 Cs-1 34 <6.43E-03 0.00E+00 6.43E-03 Cs-1 37 <8.02E-03 0.OOE+00 8.02E-03 Be-7 <5.18E-02 0.00E+00 5.18E-02 K-40 3.14E-01 7.79E-02 1.66E-01 Sample ID: 261952 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.40E-02 0.OOE+00 2.40E-02 Cs-134 <1.45E-02 0.00E+00 1.45E-02 Cs-1 37 <1.59E-02 0.00E+00 1.59E-02 Be-7 <8.49E-02 O.OOE+00 8.49E-02 K-40 <4.98E-01 O.OOE+00 4.98E-01 Sample ID: 262195 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.08E-02 0.00E+00 2.08E-02 Cs-1 34 <1.48E-02 0.OOE+00 1.48E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.26E-01 0.OOE+00 1.26E-01 K-40 4.56E-01 1.07E-01 6.84E-02 Sample ID: 263651 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.13E-02 O.OOE+00 2.13E-02 Cs-134 <1.91E-02 0.00E+00 1.91E-02 Cs-137 <1.81 E-02 0.OOE+00 1.81E-02 Be-7 <1.24E-01 0.OOE+00 1.24E-01 K-40 4.60E-01 1.08E-01 2.43E-01 Sample ID: 265040 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.42E-02 0.OOE+00 4.42E-02 Cs-134 <2.22E-02 0.00E+00 2.22E-02 Cs-1 37 <1.49E-02 0.00E+00 1.49E-02 Be-7 <1.35E-01 0.00E+00 1.35E-01 K-40 3.88E-01 1.19E-01 1.82E-01 Sample ID: 266658 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.56E-02 O.OOE+00 1.56E-02 Cs-1 34 <1.27E-02 0.OOE+00 1.27E-02 Cs-137 <1.67E-02 0.OOE+00 1.67E-02 Be-7 <1.38E-01 0.00E+00 1.38E-01 K-40 5.05E-01 1.13E-01 3.21E-01 Sample ID: 267537 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <8.64E-03 O.OOE+00 8.64E-03 Cs-134 <9.70E-03 O.OOE+00 9.70E-03 Cs-137 <9.49E-03 0.OOE+00 9.49E-03 Be-7 <7.52E-02 0.00E+00 7.52E-02 K-40 3.42E-01 9.16E-02 1.80E-01 Sample ID: 268233 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.69E-02 0.OOE+00 1.69E-02 Cs-1 34 <1.78E-02 0.OOE+00 1.78E-02 Cs-1 37 <1.72E-02 0.00E+00 1.72E-02 Be-7 <1.40E-01 0.00E+00 1.40E-01 K-40 <5.69E-01 0.OOE+00 5.69E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 51 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road-D~ Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles ]Sample ID: 269704 Sample Dates: 812612013

-9/312013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.56E-02 O.OOE+00 2.56E-02 Cs-134 <1.28E-02 O.OOE+00 1.28E-02 Cs-137 <1.56E-02 O.00E+00 1.56E-02 Be-7 <1.04E-01 O.OOE+00 1.04E-01 K-40 <4.93E-01 O.OOE+00 4.93E-01 Sample ID: 270612 Sample Dates: 9/312013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.52E-02 O.OOE+00 2.52E-02 Cs-1 34 <1.86E-02 O.OOE+00 1.86E-02 Cs-1 37 <2.06E-02 O.OOE+00 2.06E-02 Be-7 <1.28E-01 O.OOE+00 1.28E-01 K-40 4.65E-01 1.16E-01 2.78E-01 Sample ID: 271332 Sample Dates: 9/9/2013 -911612013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.97E-02 O.OOE+00 1.97E-02 Cs-1 34 <1.76E-02 O.00E:+00 1.76E-02 Cs-1 37 <2.23E-02 O.OOE+00 2.23E-02 Be-7 <1.25E-01 O.OOE+00 1.25E-01 K-40 4.66E-01 1.07E-O01 2.13E-01 Sample ID: 271718 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.99E-02 O.OOE+00 1.99E-02 Cs-1 34 <1.53E-02 O.OOE+00 1.53E-02 Cs-1 37 <2.24E-02 0.00E+00 2.24E-02 Be-7 <1.37E-01 O.OCE+00 1.37E-01 K-40 4.61E-01 1.33E-01 1.96E-01 Sample ID: 272357 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.16E-02 0.00E+00 2.16E-02 Cs-134 <1.44E-02 O.OOE+00 1.44E-02 Cs-137 <1.74E-02 O.OOE+00 1.74E-02 Be-7 <1.31E-01 0.OQE+00 1.31E-01 K-40 5.02E-01 1.12E-01 6.79E-02 Sample ID: 272776 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.68E-02 O.OOE+00 1.68E-02 Cs-1 34 <1.53E-02 O.OOE+00 1.53E-02 Cs-137 <1.21E-02 O.OOE+00 1.21E-02 Be-7 <1.02E-01 O.OOE+00 1.02E-01 K-40 2.24E-01 1.12E-01 1.90E-01 Sample ID: 274001 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.49E-02 O.OOE+00 1.49E-02 Cs-1 34 <6.51 E-03 O.OOE+00 6.51 E-03 Cs-137 <6.28E-03 O.00E+00 6.28E-03 Be-7 <7.42E-02 O.OOE+00 7.42E-02 K-40 4.16E-01 8.77E-02 1.14E--01 Sample ID: 274247 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.26E-02 0.00E+00 1.26E-02 Cs-134 <7.09E-03

.000E+00 7.09E-03 Cs-137 <5.41 E-03 0.OOE+00 5.41 E-03 Be-7 <8.22E-02 O.OOE+00 8.22E-02 K-40 3.53E-01 6.14E-02 1.27E-01 Sample ID: 274619 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.02E-02 0.OQE+00 1.02E-02 Cs-1 34 <1.05E-02 Q.OOE+00 1.05E-02 Cs-1 37 <6.56E-03 O.OOE+00 6.56E-03 Be-7 <8.61E-02 O.OOE+00 8.61E-02 K-40 <3.85E-01 O.OOE+00 3.85E-01 Sample ID: 275207 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.23E-02 O.OOE+00 2.23E-02 Cs-134 <1.66E-02 O.OOE+O0 1.66E-02 Cs-137 <1.69E-02 O.OOE+00 1.69SE-02 Be-7 <1.20E-01 O.OOE+00 1.20E-01 K-40 <4.97E-01 O.OOE+00 4.97E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 52 of 120 Duke Energy Annual Report -Appendix E E. < 13339 Hagers Ferry Road k EHuntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles ]Sample ID: 277041 Sample Dates: 11/4/2013

-11111/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.46E-02 0.OOE+00 2.46E-02 Cs-1 34 <1 .42E-02 0.00E+00 1.42E-02 Cs-1 37 <1.05E-02 0.00E+00 1.05E-02 Be-7 <9.59E-02 0.001+00 9.59E-02 K-40 3.90E-01 1.27E-01 1.91E-01 Sample ID: 277051 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.65E-02 0.OOE+00 2.65E-02 Cs-1 34 <1.07E-02 0.OOE+00 1.07E-02 Cs-137 <1.09E-02 0.OOE+00 1.09E-02 Be-7 <1.01E-01 0.OOE+00 1.01E-01 K-40 2.38E-01 7.18E-02 5.85E-02 Sample ID: 277061 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.12E-02 0.00E+00 2.12E-02 Cs-1 34 <1.60E-02 0.00E+00 1.60E-02 Cs-137 <1.91E-02 0.OOE+00 1.91E-02 Be-7 <1.61E-01 0.OOE+00 1.61E-01 K-40 3.22E-01 1.25E-01 2.36E-01 Sample ID: 278783 Sample Dates: 11/26/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.18E-02 0.OOE+00 2.18E-02 Cs-1 34 <1.40E-02 0.00E+00 1.40E-02 Cs-1 37 <1.78E-02 0.OOE+00 1 .78E-02 Be-7 <1.45E-01 0.OOE+00 1.45E-01 K-40 <4.59E-01 0.00E+00 4.59E-01 Sample ID: 278854 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.64E-02 0.OOE+00 2.64E-02 Cs-134 <2.08E-02 0.OOE+00 2.08E-02 Cs-137 <1.97E-02 0.OOE+00 1.97E-02 Be-7 <1.14E-01 0.OOE+00 1.14E-01 K-40 6.12E-01 1.49E-01 2.90E-01 Sample ID: 279094 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.05E-02 0.OOE+00 2.05E-02 Cs-134 <1.91E-02 0.OOE+00 1.91E-02 Cs-1 37 <2.12E-02 0.OOE+00 2.12E-02 Be-7 <1.59E-01 0.00E+00 1.59E-01 K-40 <4.64E-01 0.00E+00 4.64E-01 Sample ID: 279722 Sample Dates: 12116/2013

-12123/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.13E-02 0.00E+00 2.13E-02 Cs-134 <7.85E-03 0.OOE+00 7.85E-03 Cs-137 <9.44E-03 0.00E+00 9.44E-03 Be-7 <8.80E-02 0.00E+00 8.80E-02 K-40 5.88E-01 8.48E-02 3.31 E-02 Sample ID: 280211 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.71E-02 0.00E+00 4.71E-02 Cs-134 <1.72E-02 0.00E+00 1.72E-02 Cs-1 37 <1.60E-02 0.00E+00 1.60E-02 Be-7 <1.61E-01 0.00E+00 1.61E-01 K-40 <5.83E-01 0.00E+00 5.83E-01 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles]Sample ID: 177517 Sample Dates: 1)7/2013 -117/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.28E-02 0.00E+00 1.28E-02 Sample ID: 177580 Sample Dates: 1/1412013

-1114/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.62E-02 0.00E+00 1.62E-02 Sample ID: 177625 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.59E-02 0.00E+00 1.59E-02E__

Sample ID: 177659 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.22E-02 0.00E+00 1.22E-02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 53 of 120 Duke Energy Annual Report -Appendix E 'E13339 Hagers Ferry Road k EHuntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 177693 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity.1-131 <1.85E-02 Sigma Error (1)0.00E+00 LLD---1.8_5E-02 LLD 1.16E-02 Sample ID: 177738 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1)1-131 <1.16E-02 0.OOE+00 Sample ID: 177776 Sample Dates: 2118/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.74E-02 0.OOE+00 1.74E-02 Sample ID: 177847 Sample Dates: 2/26/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.70E-02 0.OOE+00 1.70E-02 Sample ID: 177883 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.90E-02 0.OOE+00 1.90E-02 Sample ID: 177932 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.23E-02 0.0OE+00 2.23E-02 Sample ID: 177968 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.19E-02 0.OOE+00 2.19E-02 Sample ID: 177995 Sample Dates: 3124/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.24E-02 0.OOE+00 1.24E-02 Sample ID: 178029 Sample Dates: 4/1/2013 -4/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.41E-02 0.OOE+00 1.41E-02 Sample ID: 178099 Sample Dates: 418/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.20E-02 0.OOE+00 1.20E-02 Sample ID: 256386 Sample Dates: 4/8/2013 -4115/2013 Nuclide Activity Sigma Error (1)1-131 <1.76E-02 0.00E+00 Cs-134 <9.23E-03 0.OOE+00 Cs-137 <1.30E-02 0.OOE+00 Be-7 <1.14E-01 0.OOE+00 K-40 5.76E-01 1.03E-01 LLD 1.76E-02 9.23E-03 1.30E-02 1.14E-01 5.02E-02 Sample ID: 256655 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.30E-02 0.OOE+00 2.30E-02 Cs-1 34 <1.69E-02 0.OOE+00 1.69E-02 Cs-1 37 <1.82E-02 0.OOE+00 1.82E-02 Be-7 <1.04E-01 0.OOE+00 1.04E-01 K-40 <4.22E-01 0.OOE+00 4.22E-01 Sample ID: 257189 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.98E-02 0.OOE+00 1.98E-02 Cs-134 <1.10E-02 0.OOE+00 1.10E-02 Cs-137 <1.73E-02 0.OOE+00 1.73E-02 Be-7 <1.24E-01 0.OOE+00 1.24E-01 K-40 6.90E-01 1.24E-01 6.02E-02 Sample ID: 257334 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.28E-02 0.OOE+00 1.28E-02 Cs-134 <7.OOE-03 0.OOE+00 7.OOE-03 Cs-137 <1.20E-02 0.OOE+00 1.20E-02 Be-7 <6.59E-02 0.00E+00 6.59E-02 K-40 2.60E-01 5.80E-02 1.37E-01 Sample ID: 257779 Sample ID: 268025 Sample Dates: 5/6/2013 -5/13/2013 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Sample Dates: 5/13/2013

-5/20/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Activity<1.43E-02<1.OOE-02<9.24E-03<6.45E-02 4.82E-01 Activity<1.47E-02<6.74E-03<9.51 E-03<6.73E-02 4.83E-01 Sigma Error (1) LLD 0.00E+00 1.43E-02 0.00E+00 1.00E-02 O.00E+00 9.24E-03 0.OOE+00 6.45E-02 9.53E-02 1.93E-01 Sigma Error (1)0.00E+00 0.OOE+00 0.00E+00 O.OOE+00 7.46E-02 LLD 1.47E-02 6.74E-03 9.51 E-03 6.73E-02 1.05E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories In 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 Appendix E -Page 54 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 258271 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.74E-02 0.00E+00 3.74E-02 Cs-1 34 <1.93E-02 0.OOE+00 1.93E-02 Cs-137 <2.61E-02 0.OOE+00 2.61E-02 Be-7 <1.73E-01 0.OOE+00 1.73E-01 K-40 7.94E-01 1.56E-01 2.20E-01 Sample ID: 258607 Sample Dates: 5/26/2013

-6/312013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.58E-02 0.OOE+00 2.58E-02 Cs-134 <1.14E-02 0.OOE+00 1.14E-02 Cs-137 <1.61E-02 0.OOE+00 1.61E-02 Be-7 <1.15E-01 0.OOE+00 1.15E-01 K-40 2.01E-01 9.69E-02 2.17E-01 Sample ID: 259081 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.82E-02 0.OOE+00 1.82E-02 Cs-1 34 <1.31E-02 0.OOE+00 1.31E-02 Cs-1 37 <2.07E-02 0.00E+00 2.07E-02 Be-7 <9.27E-02 0.OOE+00 9.27E-02 K-40 3.15E-01 1.01 E-01 2.06E-01 Sample ID: 259646 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.99E-02 0.OOE+00 1.99E-02 Cs-1 34 <1.42E-02 0.OOE+00 1.42E-02 Cs-137 <1.38E-02 0.OOE+00 1.38E-02 Be-7 <1.37E-01 0.OOE+00 1.37E-01 K-40 2.46E-01 9.88E-02 6.28E-02 Sample ID: 260277 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.35E-02 0.OOE+00 1.35E-02 Cs-1 34 <1.23E-02 0.OOE+00 1.23E-02 Cs-137 <1.60E-02 0.OOE+00 1.60E-02 Be-7 <8.29E-02 0.OOE+00 8.29E-02 K-40 <3.75E-01 0.OOE+00 3.75E-01 Sample ID: 260749 Sample Dates: 7/1/2013 -7/812013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.01E-02 0.OOE+00 1.01E-02 Cs-134 <7.23E-03 0.OOE+00 7.23E-03 Cs-1 37 <1.20E-02 0.OOE+00 1.20E-02 Be-7 <6.93E-02 0.OOE+00 6.93E-02 K-40 2.52E-01 7.72E-02 1.81E-01 Sample ID: 261688 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.97E-03 0.OOE+00 2.97E-03 Cs-134 <1.13E-02 0.OOE+00 1.13E-02 Cs-137 <1.17E-02 0.OOE+00 1.17E-02 Be-7 <5.08E-02 0.OOE+00 5.08E-02 K-40 3.93E-01 9.01 E-02 1.71 E-01 Sample ID: 261955 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.16E-02 0.OOE+00 2.16E-02 Cs-134 <1.81E-02 0.OOE+00 1.81E-02 Cs-137 <2.10E-02 0.OOE+00 2.10E-02 Be-7 <1.35E-01 0.OOE+00 1.35E-01 K-40 <5.76E-01 0.OOE+00 5.76E-01 Sample ID: 262198 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.98E-02 0.O0E+00 1.98E-02 Cs-134 <1.54E-02 0.OOE+00 1.54E-02 Cs-137 <1.81E-02 0.OOE+00 1.81E-02 Be-7 <1.14E-01 O.OOE+00 1.14E-01 K-40 5.05E-01 1.13E-01 6.83E-02 Sample ID: 263654 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.12E-02 0.OOE+00 2.12E-02 Cs-134 <1.69E-02 0.OOE+00 1.69E-02 Cs-1 37 <1.70E-02 0.OOE+00 1.70E-02 Be-7 <1.42E-01 0.OOE+00 1.42E-01 K-40 4.11E-01 1.03E-01 2.44E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -.EnRad Laboratories Appendix E -Page 55 of 120 Duke Energy Annual Report -Appendix E , , 13339 Hagers Ferry Road D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 265041 Sample ID: 266661 Sample Dates: 7/22/2013

-7/29/2013 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1)1-131 <3.94E-02 O.OOE+00 Cs-134 <1.50E-02 O.OOE+00 Cs-137 <2.17E-02 O.OOE+00 Be-7 <1.53E-01 O.00E+00 K-40 3.75E-01 1.OOE-01 Nuclide Activity Sigma Error (1)1-131 <1.41E-02 O.OOE+00 Cs-1 34 <2.06E-02 O.OOE+00 Cs-1 37 <2.41 E-02 0.OOE+00 Be-7 <1.33E-01 0.OOE+00 K-40 4.75E-01 1.73E-01 LLD 3.94E-02 1.50E-02 2.17E-02 1.53E-01 7.23E-02 LLD 1.41E-02 2.06E-02 2.41 E-02 1.33E-01 3.47E-01 Sample ID: 267538 Sample Dates: 8112/2013

-8/20/2013 Nuclide Sample ID: 268236 Sample Dates: 8/20/2013

-8/26/2013 1-131 Cs-134 Cs-137 Be-7 K-40 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 Activity<1.26E-02<5.81 E-03<1.22E-02<8.04E-02 3.63E-01 Activity<2.92E-02<1.33E-02<2.22E-02<1.45E-01<5.77E-01 Activity<3.28E-02<1.26E-02<1.49E-02<1.34E-01 2.04E-01 Sigma Error 1)O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 7.93E-02 Sigma Error (1)0.OOE+00 0.00E+00 0.OOE+00 0.OOE+00 0.00E+00 Sigma Error (1)0.00E+00 O.00E+00 0.00E+00 0.00E+00 9.52E-02 LLD 1.26E-02 5.81 E-03 1.22E-02 8.04E-02 1.88E-01 LLD 2.92E-02 1.33E-02 2.22E-02 1.45E-01 5.77E-01 LLD 3.28E-02 1.26E-02 1.49E-02 1.34E-01 1.98E-01 K-40 Sample ID: 269707 Sample Dates: 8/26/2013

-9/3/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Sample ID: 270615 Sample Dates: 9/3/2013 -9/9/2013 Nuclide 1-13 1 Cs-i 34 Cs-137 Be-7 K-40 Activity Sigma Error (1) LLD<2.39E-02 0.OOE+00 2.39E-02<1.79E-02 0.00E+00 1.79E-02<1.86E-02 0.OOE+00 1.86E-02<1.14E-01 O.00E+00 1.14E-01 4.09E-01 1.14E-01 3.01E-01 Sample ID: 271333 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.10E-02 0.00E+00 3.10E-02 Cs-1 34 <1.80E-02 O.OOE+00 1.80E-02 Cs-1 37 <1.54E-02 0.00E+00 1.54E-02 Be-7 <1.41E-01 0.00E+00 1.41E-01 K-40 4.15E-01 1.04E-01 7.02E-02 Sample ID: 271721 Sample Dates: 9116/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.90E-02 0.00E+00 1.90E-02 Cs-134 <1.54E-02 0.OOE+00 1.54E-02 Cs-1 37 <1.71E-02 0.00E+00 1.71 E-02 Be-7 <9.21 E-02 0.OOE+00 9.21 E-02 K-40 <5.57E-01 O.OOE+00 5.57E-01 Sample ID: 272360 Sample Dates: 9/2312013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.11E-02 0.00E+00 2.11E-02 Cs-134 <1.40E-02 O.00E+00 1.40E-02 Cs-1 37 <1.74E-02 0.00E+00 1.74E-02 Be-7 <1.55E-01 0.00E+00 1.55E-01 K-40 5 53E-01 1 21 E-01 7.12E-02 Sample ID: 272776 Sample Dates: 9/30/2013

-10/7/2013 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Activity<3.35E-02<1.72E-02<1.83E-02<1.59E-01 5.03E-01 Sigma Error(1) LLD O.00E+00 3.35E-02 0.00E+00 1.72E-02 0.00E+00 1.83E-02 0.00E+00 1.59E-01 1.48E-01 2.53E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

'Efl 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 56 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 274004 Sample Dates: 1017/2013

-10/1412013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.12E-02 0.00E+00 2.12E-02 Cs-134 <9.68E-03 0.00E+00 9.68E-03 Cs-137 <1.35E-02 0.00E+00 1.35E-02 Be-7 <8.24E-02 O.OOE+00 8.24E-02 K-40 <3.46E-01 O.00E+00 3.46E-01 Sample ID: 274250 Sample Dates: 10/1412013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.80E-02 0.00E+00 1.80E-02 Cs-1 34 <1.07E-02 0.OOE+00 1.07E-02 Cs-137 <1.09E-02 0.00E+00 1.09E-02 Be-7 <8.01E-02 0.OOE+00 8.01E-02 K-40 4.23E-01 8.81 E-02 1.36E-01 Sample ID: 274623 Sample Dates: 10/21/2013

-10128/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.17E-02 0.00E+00 1.17E-02 Cs-1 34 <8.70E-03 0.00E+00 8.70E-03 Cs-1 37 <1.22E-02 0.00E+00 1.22E-02 Be-7 <9.40E-02 0.00E+00 9.40E-02 K-40 5.37E-01 8.09E-02 3.30E-02 Sample ID: 276210 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.53E-02 0.00E+00 2.53E-02 Cs-134 <1.62E-02 0.OOE+00 1.62E-02 Cs-137 <2.15E-02 0.OOE+00 2.15E-02 Be-7 <1.49E-01 0.0OE+00 1.49E-01 K-40 <5.84E-01 0.00E+00 5.84E-01 Sample ID: 277044 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.55E-02 0.00E+00 1.55E-02 Cs-134 <1.78E-02 0.00E+00 1.78E-02 Cs-137 <2.24E-02 0.00E+00 2.24E-02 Be-7 <1.06E-01 0.00E+00 1.06E-01 K-40 4.79E-01 1.13E-01 2.01E-01 Sample ID: 277054 Sample Dates: 11/18/2013

-11/2512013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.41E-02 0.00E+00 2.41E-02 Cs-1 34 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.52E-02 0.00E+00 1.52E-02 Be-7 <1.25E-01 0.00E+00 1.25E-01 K-40 2.57E-01 1.05E-01 1.81 E-01 Sample ID: 277064 Sample Dates: 11/11/2013

-11/1812013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.09E-02 0.00E+00 1.09E-02 Cs-1 34 <4.45E-03 0.00E+00 4.45E-03 Cs-137 <1.07E-02 0.00E+00 1.07E-02 Be-7 <8.63E-02 0.00E+00 8.63E-02 K-40 2.89E-01 7.72E-02 5.58E-02 Sample ID: 278786 Sample Dates: 11125/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.64E-02 0.00E+00 4.64E-02 Cs-134 <1.15E-02 0.00E+00 1.15E-02 Cs-1 37 <1.58E-02 0.00E+00 1.58E-02 Be-7 <1.18E-01 0.00E+00 1.18E-01 K-40 <5.53E-01 0.00E+00 5.53E-01 Sample ID: 278857 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.40E-02 0.00E+00 1.40E-02 Cs-134 <9.46E-03 0.00E+00 9.46E-03 Cs-1 37 <1.28E-02 0.00E+00 1.28E-02 Be-7 <8.01 E-02 0.00E+00 8.01 E-02 K-40 3.28E-01 8.21 E-02 5.55E-02 Sample ID: 279097 Sample Dates: 12/9/2013

-12116/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.69E-02 0.00E+00 2.69E-02 Cs-1 34 <1.66E-02 0.00E+00 1.66E-02 Cs-137 <2.22E-02 0.00E+00 2.22E-02 Be-7 <1.65E-01 0.00E+00 1.65E-01 K-40 <4.94E-01 0.00E+00 4.94E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -"' EnRad Laboratories Appendix E -Page 57 of 120 Duke Energy Annual Report-Appendix E E 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 279725 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.76E-02 O.OOE+00 2.76E-02 Cs-134 <4.70E-03 O.OOE+00 4.70E-03 Cs-137 <8.22E-03 O.OOE+00 8.22E-03 Be-7 <7.55E-02 O.OOE+00 7.55E-02 K-40 3.31E-01 8.28E-02 1.54E-01 Sample ID: 280214 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.75E-02 O.OOE+00 1.75E-02 Cs-1 34 <7.55E-03 O.OOE+00 7.55E-03 Cs-137 <1.22E-02 O.OOE+00 1.22E-02 Be-7 <1.13E-01 O.OOE+00 1.13E-01 K-40 <3.56E-01 O.OOE+00 3.56E-01 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles]Sample ID: 177518 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity 1-131 <2.36E-02 Sigma Error (1) LLD O.OOE+00 2.36E-02 Sample ID: 177581 Sample Dates: 1/14/2013

-1/1412013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.20E-02 0.00E+00 1.20E-02 Sample ID: 177626 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1,77E-02 0.00E+00-1.77E-02 Sample ID: 177660 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.95E-02 O.OOE+00 1.95E-02 Sample ID: 177694 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.88E-02 O.OOE+00 1.88E-02 Sample ID: 177739 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.88E-02 O.OOE+00 1.88E-02 Sample ID: 177777 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.82E-02 O.OOE+00 1.82E-02 Sample ID: 177848 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.75E-02 O.OOE+00 1.75E-02 Sample ID: 177884 Sample Dates: 314/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.76E-02 O.OOE+00 1.76E-02 Sample ID: 177933 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.78E-02 0.00E+00 1.78E-02 Sample ID: 177969 Sample Dates: 3/18/2013

-3118/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.17E-02 O.OOE+00 2.17E-02 Sample ID: 177996 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.84E-02 O.OOE+00 1.84E-02 Sample ID: 178030 Sample Dates: 4/1/2013 -4/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.20E-02 O.OOE+00 1.20E-02 Sample ID: 178100 Sample Dates: 4/8/2013 -4/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.52E-02 O.OOE+00 1.52E-02 Sample ID: 256293 Sample Dates: 4/8/2013 -4/15/2013 Sample ID: 256651 Sample Dates: 4/1512013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.30E-02 O.OOE+00 1.30E-02 Cs-134 <9.42E-03 O.OOE+00 9.42E-03 Cs-137 <1, 11 E-02 O.OOE+00 1.11 E-02 Be-7 <6.05E-02 O.OOE+00 6.05E-02 K-40 3.91E-01 7.02E-02 9.26E-02 Nuclide Activity Sigma Error (1) LLD 1-131 <1.95E-02 O.OOE+00 1.95E-02 Cs-1 34 <1.64E-02 O.OOE+00 1.64E-02 Cs-1 37 <1.66E-02 O.OOE+00 1.66E-02 Be-7 <1.46E-01 O.OOE+00 1.46E-01 K-40 5.37E-01 1.12E-01 1.70E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories Efl 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 58 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ]Sample ID: 257185 Sample Dates: 4122/2013

-4129/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.88E-02 0.00E+00 1.88E-02 Cs-134 <1.01E-02 0.OOE+00 1.01E-02 Cs-137 <9.64E-03 0.OOE+00 9.64E-03 Be-7 <9.14E-02 0.00E+00 9.14E-02 K-40 <2.84E-01 0.OOE+00 2.84E-01 Sample ID: 257330 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.14E-02 0.00E+00 1.14E-02 Cs-134 <9.33E-03 0.00E+00 9.33E-03 Cs-137 <8.23E-03 0.00E+00 8.23E-03 Be-7 <7.81 E-02 0.00E+00 7.81 E-02 K-40 5.26E-01 9.03E-02 8.56E-02 Sample ID: 257775 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.06E-02 0.00E+00 2.06E-02 Cs-134 <1.30E-02 0.00E+00 1.30E-02 Cs-137 <1.68E-02 0.00E+00 1.68E-02 Be-7 <8.37E-02 0.OOE+00 8.37E-02 K-40 <4.43E-01 0.OOE+00 4.43E-01 Sample ID: 258021 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.36E-02 0.00E+00 1.36E-02 Cs-1 34 <1.02E-02 0.OOE+00 1.02E-02 Cs-1 37 <9.37E-03 0.00E+00 9.37E-03 Be-7 <8.28E-02 0.00E+00 8.28E-02 K-40 <3.45E-01 0.00E+00 3.45E-01 Sample ID: 258267 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.37E-02 0.00E+00 3.37E-02 Cs-1 34 <1.68E-02 0.OOE+00 1.68E-02 Cs-1 37 <2.04E-02 0.00E+00 2.04E-02 Be-7 <1.63E-01 0.00E+00 1.63E-01 K-40 5.26E-01 1.28E-01 8.36E-02 Sample ID: 258603 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.19E-02 0.00E+00 2.19E-02 Cs-134 <1.23E-02 0.OOE+00 1.23E-02 Cs-1 37 <1.62E-02 0.OOE+00 1.62E-02 Be-7 <1.42E-01 0.00E+00 1.42E-01 K-40 <5.26E-01 0.OOE+00 5.26E-01 Sample ID: 259077 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.35E-02 0.OOE+00 2.35E-02 Cs-134 <1.16E-02 0.OOE+00 1.16E-02 Cs-137 <1.15E-02 0.002+00 1.15E-02 Be-7 <1.20E-01 0.002+00 1.20E-01 K-40 3.32E-01 6.64E-02 1.55E-01 Sample ID: 259641 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.69E-02 0.OOE+00 1.69E-02 Cs-134 <1.34E-02 0.00E+00 1.34E-02 Cs-137 <9.95E-03 0.OOE+00 9.95E-03 Be-7 <1.18E-01 0.002+00 1.182-01 K-40 3.46E-01 8.94E-02 2.09E-01 Sample ID: 260273 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.25E-02 0.00E+00 1.25E-02 Cs-1 34 <5.38E-03 0.00E+00 5.38E-03 Cs-1 37 <7.03E-03 0.00E+00 7.03E-03 Be-7 <5.18E-02 0.00E+00 5.18E-02 K-40 4.43E-01 4.66E-02 6.78E-02 Sample ID: 260745 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.75E-02 0.00E+00 1.75E-02 Cs-134 <1.17E-02 0.OOE+00 1.17E-02 Cs-137 <1.19E-02 0.OOE+00 1.19E-02 Be-7 <1.13E-01 0.00E+00 1.13E-01 K-40 6.27E-01 1.19E-01 1.61E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -, EnRad Laboratories Appendix E -Page 59 of 120 Duke Energy Annual Report -Appendix E E. 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ]Sample ID: 261684 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.36E-02 O.OOE+00 1.36E-02 Cs-134 <7.67E-03 O.OOE+00 7.67E-03 Cs-137 <1.09E-02 O.OOE+00 1.09E-02 Be-7 <9.OOE-02 0.OOE+00 9.OOE-02 K-40 5.73E-01 8.36E-02 1.1IE-01 Sample ID: 261951 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.42E-02 O.OOE+00 2.42E-02 Cs-1 34 <1.73E-02 O.00E+00 1.73E-02 Cs-1 37 <1.60E-02 0.OOE+00 1.60E-02 Be-7 <1.40E-01 O.OOE+00 1.40E-01 K-40 <4.98E-01 O.00E+00 4.98E-01 Sample ID: 262194 Sample Dates: 7/1512013

-7122/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.78E-02 0.OOE+00 2.78E-02 Cs-134 <1.88E-02 0.00E+00 1.88E-02 Cs-137 <2.08E-02 0.OOE+00 2.08E-02 Be-7 <1.43E-01 0.00E+00 1.43E-01 K-40 4.19E-01 1.32E-01 2.02E-01 Sample ID: 263650 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.58E-02 0.OOE+00 2.58E-02 Cs-1 34 <2.07E-02 0.OOE+00 2.07E-02 Cs-137 <2.51E-02 O.OOE+00 2.51 E-02 Be-7 <1.23E-01 0.OOE+00 1.23E-01 K-40 <3.89E-01 0.OOE+00 3.89E-01 Sample ID: 265042 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.02E-02 0.OOE+00 3.02E-02 Cs-1 34 <1.84E-02 O.OOE+00 1.84E-02 Cs-137 <1.66E-02 0.OOE+00 1.66E-02 Be-7 <1.63E-01 0.OOE+00 1.63E-01 K-40 4.39E-01 1.46E-01 2.73E-01 Sample ID: 266657 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.68E-02 O.OOE+00 2.68E-02 Cs-134 <1.88E-02 O.OOE+00 1.88E-02 Cs-137 <2.02E-02 O.OOE+00 2.02E-02 Be-7 <1.11 E-01 0.OOE+00 1.11 E-01 K-40 2.14E-01 1.08E-01 2.30E-01 Sample ID: 267539 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.13E-02 O.OOE+00 2.13E-02 Cs-134 <1.12E-02 0.OOE+00 1.12E-02 Cs-137 <1.77E-02 O.OOE+00 1.77E-02 Be-7 <1.26E-01 0.OOE+00 1.26E-01 K-40 4.88E-01 1.06E-01 6.28E-02 Sample ID: 268232 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.82E-02 0.OOE+00 2.82E-02 Cs-134 <2.08E-02 0.OOE+00 2.08E-02 Cs-1 37 <2.94E-02 0.OOE+00 2.94E-02 Be-7 <1.48E-01 0.OOE+00 1.48E-01 K-40 <6.34E-01 0.OOE+00 6.34E-01 Sample ID: 269703 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E-02 O.OOE+00 1.50E-02 Cs-134 <7.09E-03 O.OOE+00 7.09E-03 Cs-1 37 <8.89E-03 O.OOE+00 8.89E-03 Be-7 <8.66E-02 O.OOE+00 8.66E-02 K-40 <3.01E-01 0.OOE+00 3.01E-01 Sample ID: 270611 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.43E-02 0.OOE+00 3.43E-02 Cs-1 34 <1.96E-02 0.OOE+00 1.96E-02 Cs-137 <2.08E-02 0.OOE+00 2.08E-02 Be-7 <1.64E-01 0.OOE+00 1.64E-01 K-40 7.88E-01 1.58E-01 2.38E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 60 of 120 Duke Energy Annual Report -Appendix E En .) 13339 Hagers Ferry Road-.D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report- 2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ]Sample ID: 271334 Sample Dates: 9/9/2013 -9116/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.35E-02 0.OOE+00 2.35E-02 Cs-134 <1.65E-02 0.OOE+00 1.65E-02 Cs-137 <1.32E-02 0.00E+00 1.32E-02 Be-7 <1.26E-01 0.00E+00 1.26E-01 K-40 4.79E-01 1.42E-01 2.89E-01 Sample ID: 271717 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.37E-02 O.00E+00 1.37E-02 Cs-1 34 <1.61E-02 0.OOE+00 1.61E-02 Cs-137 <1.94E-02 O.OOE+00 1.94E-02 Be-7 <1.59E-01 O.OOE+00 1.59E-01 K-40 5.45E-01 1.22E-01 2.61E-01 Sample ID: 272356 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.30E-02 O.00E+00 2.30E-02 Cs-134 <1.74E-02 0.OOE+00 1.74E-02 Cs-137 <2.07E-02 0.OOE+00 2.07E-02 Be-7 <1.83E-01 0.OOE+00 1.83E-01 K-40 5.81E-01 1.44E-01 2.97E-01 Sample ID: 272777 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.62E-02 O.OOE+00 2.62E-02 Cs-134 <2.01E-02 O.OOE+00 2.01E-02 Cs-137 <1.73E-02 O.OOE+00 1.73E-02 Be-7 <1.32E-01 0.OOE+00 1.32E-01 K-40 <5.30E-01 0.00E+00 5.30E-01 Sample ID: 274000 Sample Dates: 10/7/2013

-10/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.17E-02 0.OOE+00 3.17E-02 Cs-1 34 <9.52E-03 O.00E+00 9.52E-03 Cs-137 <8.98E-03 0.00E1100 8.98E-03 Be-7 <1.10E-01 0.OOE+O0 1.10E-01 K-40 3.58E-01 8.95E-02 6.05E-02 Sample ID: 274246 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.44E-02 0.OOE+00 1.44E-02 Cs-134 <6.71E-03 O.OOE+00 6.71E-03 Cs-1 37 <7.28E-03 0.OOE+00 7.28E-03 Be-7 <4.29E-02 O.00E+00 4.29E-02 K-40 2.56E-01 5.72E-02 3.45E-02 Sample ID: 274618 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.36E-02 O.OOE+00 1.36E-02 Cs-134 <8.42E-03 0.OOE+00 8.42E-03 Cs-1 37 <8.62E-03 0.OOE+00 8.62E-03 Be-7 <4.55E-02 O.OOE+00 4.55E-02 K-40 4.57E-01 9.65E-02 1.37E-01 Sample ID: 275206 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.88E-02 0.00E+00 1.88E-02 Cs-1 34 <1.64E-02 0.00E+00 1.64E-02 Cs-137 <1.63E-02 0.OOE+00 1.63E-02 Be-7 <1.66E-01 O.OOE+00 1.66E-01 K-40 4.77E-01 1.39E-01 2.84E-01 Sample ID: 277040 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.87E-02 0.OOE+00 2.87E-02 Cs-134 <1.70E-02 0.OOE+00 1.70E-02 Cs-1 37 <1.78E-02 O.OOE+O0 1.78E-02 Be-7 <1.54E-01 0.00E+00 1.54E-01 K-40 2.94E-01 8.88E-02 7.23E-02 Sample ID: 277050 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.33E-02 O.OOE+00 2.33E-02 Cs-134 <8.75E-03 O.OOE+00 8.75E-03 Cs-1 37 <1.18E-02 0.OOE+00 1. 18E-02 Be-7 <8.17E-02 0.OOE+00 8.17E-02 K-40 3.89E-01 9.22E-02 1.59E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 , EnRad Laboratories Appendix E -Page 61 of 120 Duke Energy Annual Report -Appendix E En ) 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ]Sample ID: 277060 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.65E-02 0.OOE+00 1.65E-02 Cs-134 <9.86E-03 O.OOE+00 9.86E-03 Cs-137 <1.44E-02 O.OOE+00 1.44E-02 Be-7 <1.02E-01 O.OOE+00 1.02E-01 K-40 6.52E-01 1.23E-01 2.59E-01 Sample ID: 278782 Sample Dates: 11/26/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <6.85E-02 O.OOE+00 6.85E-02 Cs-1 34 <1.61 E-02 0.00E+00 1.61 E-02 Cs-137 <1.89E-02 0.OOE+00 1.89E-02 Be-7 <1.39E-01 0.OOE+00 1.39E-01 K-40 4.23E-01 9.97E-02 6.35E-02 Sample ID: 278853 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.24E-02 0.OOE+00 1.24E-02 Cs-1 34 <1.11 E-02 O.00E+00 1.11 E-02 Cs-137 <1.12E-02 O.OOE+00 1.12E-02 Be-7 <7.99E-02 0.OOE+00 7.99E-02 K-40 3.21E-01 1.00E-01 1.71E-01 Sample ID: 279093 Sample Dates: 12/9/2013-12/16/2013 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Sample ID: 279721 Sample Dates: 12/16/2013

-12/23/2013 Nuclide 1-131 Cs-134 Cs-1 37 Be-7 K-40 Sample ID: 280210 Sample Dates: 12/23/2013

-12/30/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles]Activity<2.50E-02<9.38E-03<2.11E-02<1.30E-01 4.65E-01 Activity<2.59E-02<8.23E-03<1.13E-02<1.04E-01 3.71 E-01 Sigma Error (1)0.00E+00 0.OOE+00 O.00E+00 0.OOE+00 1.13E-01 Sigma Error (1)0.OOE+00 O.OOE+00 0.OOE+00 0.OOE+00 8.50E-02 LLD 2.50E-02 9.38E-03 2.11E-02 1.30E-01 2.48E-01 LLD 2.59E-02 8.23E-03 1.13E-02 1.04E-01 2.15E-01 Activity<3.85E-02<1.55E-02<1.41E-02<1.75E-01 4.68E-01 Sigma Error (1)O.00E+00 0.00E+00 0.00E+00 0.00E+00 1.14E-01 LLD 3.85E-02 1.55E-02 1.41E-02 1.75E-01 7.44E-02 Sample ID: 177519 Sample Dates: 1/7/2013 -1/7/2013 Nuclide Activity 1-131 <2.03E-02 Sigma Error (1) LLD 0.00E+00 2.03E-02 Sample ID: 177582 Sample Dates: 1/14/2013

-1/14/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.74E-02 0.OOE+00 1.74E-02 Sample ID: 177627 Sample ID: 177661 Sample Dates: 1/21/2013

-1/21/2013 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.07E-02 0.OOE+00 2.07E-02 Nuclide Activity Sigma Error (1) LLD 1-131 <1.56E-02 0.00E+00 1.56E-02 Sample ID: 177695 Sample Dates: 2/4/2013 -2/4/2013 Nuclide Activity Sigma Error (1)LLD Sample ID: 177740 Sample Dates: 2/11/2013

-2/11/2013 1-131 <1.98E-02 Nuclide Activity 0.00E+00 1.98E-02 Sigma Error (1) LLD 1-131 <1.46E-02 0.OOE+00 1.46E-02 Sample ID: 177778 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.80E-02 0.OOE+00 1.80E-02 Sample ID: 177849 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.77E-02 0O00E+00 1.77E-02 Sample ID: 177885 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.91E-02 0.OOE+00 1.91E-02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display I sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories D. 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 62 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles ]Sample ID: 177934 Sample Dates: 3/11/2013

-3/11/2013 Nuclide Activity Sigma Error (1)1-131 <1.13E-02 0.00E+00 LLD 1.13E-02 Sample ID: 177970 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.37E-02 O.OOE+00 2.37E-02 Sample ID: 177997 Sample Dates: 3/24/2013

-3/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.22E-02 0.00E+00 2.22E-02 Sample ID: 178031 Sample Dates: 4/1/2013 -4/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.19E-02 0.OOE+00 1.19E-02 Sample ID: 178101 Sample Dates: 4/8/2013 -418/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.49E-02 0.00E+00 1.49E-02 Sample ID: 256295 Sample Dates: 4/8/2013 -4/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.06E-02 0.00E+00 1.06E-02 Cs-134 <8.09E-03 O.00E+00 8.09E-03 Cs-137 <9.00E-03 0.OOE+00 9.00E-03 Be-7 <6.91E-02 0.OOE+00 6.91E-02 K-40 2.51E-01 5.48E-02 3.231-02 Sample ID: 256653 Sample Dates: 4/15/2013

-4/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.89E-02 0.00E+00 1.89E-02 Cs-1 34 <1.43E-02 0.00E+00 1.43E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <7.78E-02 0.OOE+00 7.78E-02 K-40 <4.38E-01 0.OOE+00 4.38E-01 Sample ID: 257187 Sample Dates: 4/22/2013

-4/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 Cs-134 Cs-1 37 Be-7 K-40<1.45E-02<8.61 E-03<1.08E-02<8.80E0-02 2.98E-01 0.006+00 1.45E-02 0.00E+00 8.61E-03 0.006+00 1.08E-02 0.006+00 8.80E-02 6.21 E-02__ 1. 12E-01 ______Sample ID: 257332 Sample Dates: 4/29/2013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.65E-02 0.00E+00 1.65E-02 Cs-1 34 <8.54E-03 0.00E+00 8.54E-03 Cs-1 37 <1.38E-02 0.00E+00 1.38E-02 Be-7 <5.44E-02 0.00E+00 5.44E-02 K-40 5.44E-01 9.43E-02 1.13E-01 Sample ID: 257777 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.48E-02 0.00E+00 1.48E-02 Cs-1 34 <8.67E-03 0.00E+00 8.67E-03 Cs-1 37 <7.54E-03 0.OOE+00 7.54E-03 Be-7 <4.91 E-02 0.00E+00 4.91 E-02 K-40 6.02E-01 8.19E-02 8.14E-02 Sample ID: 258023 Sample Dates: 5/13/2013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.85E-02 0.00E+00 1.85E-02 Cs-1 34 <8.65E-03 0.OOE+00 8.65E-03 Cs-137 <1.13E-02 0.OOE+00 1.13E-02 Be-7 <8.87E-02 0.00E+00 8.87E-02 K-40 1.26E-01 6.89E-02 1.13E-01 S S ample ID: 258269 Sample Dates: 5/20/2013

-5/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.17E-02 0.00E+00 3.17E-02 Cs-1 34 <1.54E-02 0.00E+00 1.54E-02 Cs-1 37 <1.79E-02 0.00E+00 1.79E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 2.34E-01 1.25E-01 3.17E-01 ample ID: 258605 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.74E-02 0.00E+00 2.74E-02 Cs-134 <9.48E-03 0.00E+00 9.48E-03 Cs-1 37 <1.41E-02 0.00E+00 1.41E-02 Be-7 <1.06E-01 0.00E+00 1.06E-01 K-40 <4.22E-01 0.00E+00 4.22E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[g] 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 Appendix E -Page 63 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles ]Sample ID: 259079 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <7.73E-03 O.OOE+00 7.73E-03 Cs-1 34 <1.01E-02 0.O0E+00 1.01E-02 Cs-1 37 <9.66E-03 0.OOE+00 9.66E-03 Be-7 <6.66E-02 O.OOE+00 6.66E-02 K-40 3.59E-01 8.24E-02 5.11E-02 Sample ID: 259643 Sample Dates: 6/10/2013

-6118/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.75E-02 0.00E+00 1.75E-02 Cs-1 34 <8.59E-03 O.OOE+00 8.59E-03 Cs-137 <2.01E-02 0.OOE+00 2.01E-02 Be-7 <1.13E-01 O.OOE+00 1.13E-01 K-40 2.94E-01 8.14E-02 1.62E-01 Sample ID: 260275 Sample Dates: 6/18/2013

-6/24/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.10E-02 0.OOE+00 3.10E-02 Cs-134 <2.OOE-02 0.OOE+00 2.OOE-02 Cs-1 37 <2.19E-02 0.OOE+00 2.19E-02 Be-7 <1.46E-01 O.OOE+00 1.46E-01 K-40 <6.47E-01 0.00E+00 6.47E-01 Sample ID: 260747 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.02E-02 0.O0E+00 1.02E-02 Cs-134 <8.67E-03 O.OOE+00 8.67E-03 Cs-137 <7.87E-03 O.OOE+00 7.87E-03 Be-7 <7.OOE-02 O.OOE+00 7.OOE-02 K-40 4.77E-01 7.27E-02 1.18E-01 Sample ID: 261686 Sample Dates: 7/8/2013 -7/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.12E-02 O.OOE+00 1.12E-02 Cs-1 34 <6.96E-03 0.OOE+00 6.96E-03 Cs-1 37 <1.25E-02 O.OOE+00 1.25E-02 Be-7 <4.67E-02 0.OOE+00 4.67E-02 K-40 3.97E-01 8.47E-02 1.32E-01 Sample ID: 261953 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.04E-02 O.OOE+00 2.04E-02 Cs-134 <1.28E-02 0.OOE+00 1.28E-02 Cs-1 37 <1.51E-02 O.OOE+00 1.51E-02 Be-7 <1.50E-01 O.OOE+00 1.50E-01 K-40 5.31E-01 1.38E-01 2.31E-01 Sample ID: 262196 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.05E-02 0.OOE+00 2.05E-02 Cs-1 34 <1.64E-02 O.OOE+00 1.64E-02 Cs-1 37 <1.72E-02 O.OOE+00 1.72E-02 Be-7 <1.22E-01 O.OOE+00 1.22E-01 K-40 <4.72E-01 O.OOE+00 4.72E-01 Sample ID: 263652 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.54E-02 0.OOE+00 2.54E-02 Cs-1 34 <1.64E-02 O.OOE+00 1.64E-02 Cs-1 37 <1.48E-02 O.OOE+00 1.48E-02 Be-7 <7.17E-02 0.OOE+00 7.17E-02 K-40 <4.40E-01 O.OOE+00 4.40E-01 Sample ID: 265043 Sample Dates: 7/22/2013

-7/29/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.54E-02 O.OOE+00 3.54E-02 Cs-134 <1.73E-02 O.OOE+00 1.73E-02 Cs-137 <1.49E-02 0.OOE+00 1.49E-02 Be-7 <1.30E-01 0.OOE+00 1.30E-01 K-40 3.06E-01 1.07E-01 2.27E-01 Sample ID: 266659 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.94E-02 0.OOE+00 1.94E-02 Cs-134 <1.43E-02 0.OOE+00 1.43E-02 Cs-1 37 <1.79E-02 O.OOE+00 1.79E-02 Be-7 <9.50E-02 0.OOE+00 9.50E-02 K-40 5.02E-01 1.15E-01 7.14E-02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 64 of 120 Duke Energy Annual Report -Appendix E fl.) 13339 Hagers Ferry Road S-~ Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles ]Sample ID: 267540 Sample Dates: 8/12/2013

-812012013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.40E-02 O.OOE+00 2.40E-02 Cs-134 <1.31E-02 O.OOE+00 1.31E-02 Cs-1 37 <1.26E-02 O.OOE+00 1.26E-02 Be-7 <1.30E-01 O.OOE+00 1.30E-01 K-40 3.83E-01 1.13E-01 2.90E-01 Sample ID: 268234 Sample Dates: 8120/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.97E-02 O.OOE+00 2.97E-02 Cs-1 34 <2.02E-02 O.OOE+00 2.02E-02 Cs-137 <2.17E-02 O.OOE+00 2.17E-02 Be-7 <1.86E-01 O.OOE+00 1.86E-01 K-40 <6.34E-01 O.OOE+00 6.34E-01 Sample ID: 269705 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.74E-02 O.OOE+00 1.74E-02 Cs-134 <7.32E-03 O.OOE+00 7.32E-03 Cs-137 <1.16E-02 O.OOE+00 1.16E-02 Be-7 <1.09E-01 O.OOE+00 1.09E-01 K-40 2.06E-01 5.96E-02 4.65E-02 Sample ID: 270613 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.31E-02 O.00E+00 2.31E-02 Cs-134 <1.83E-02 O.OOE+00 1.83E-02 Cs-137 <2.37E-02 O.OOE+00 2.37E-02 Be-7 <1.33E-01 O.OOE+00 1.33E-01 K-40 5.11E-01 1.47E-01 2.27E-01 Sample ID: 271335 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.18E-02 O.OOE+00 2.18E-02 Cs-1 34 <1.47E-02 O.OOE+00 1.47E-02 Cs-137 <1.84E-02 O.OOE+00 1.84E-02 Be-7 <1.58E-01 O.OOE+00 1.58E-01 K-40 <4.76E-01 O.OOE+00 4.76E-01 Sample ID: 271719 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.05E-02 O.OOE+00 2.05E-02 Cs-134 <1.65E-02 O.OOE+00 1.65E-02 Cs-137 <2.28E-02 O.OOE+00 2.28E-02 Be-7 <1.10E-01 O.OOE+00 1.10E-01 K-40 3.46E-01 9.59E-02 2.95E-01 Sample ID: 272358 Sample Dates: 9/23/2013

-9/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.91 E-02 0.CCE+00 1.91E-02 Cs-1 34 <1.37E-02 C.C0E+00 1.37E-02 Cs-1 37 <1.94E-02 0.COE+00 1.94E-02 Be-7 <1.56E-01 0.C0E+00 1.56E-01 K-40 <4.70E-01 O.OOE+00 4.70E-01 Sample ID: 272778 Sample Dates: 9/30/2013

-10/7/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.43E-02 C.OE+00 2.43E-02 Cs-134 <1.71E-02 0.00E+00 1.71E-02 Cs-1 37 <2.02E-02 C.C0E+00 2.02E-02 Be-7 <1.32E-01 C.O0E+00 1.32E-01 K-40 7.28E-01 1.38E-01 1.97E-01 Sample ID: 274002 Sample Dates: 10/7/2013

-10114/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.94E-02 C.O0E+00 1.94E-02 Cs-1 34 <8.36E-03 C.00E+00 8.36E-03 Cs-1 37 <7.66E-03 0.00E+00 7.66E-03 Be-7 <6.91 E-02 C.C0E+00 6.91 E-02 K-40 4.21E-01 7.11E-02 3.25E-02 Sample ID: 274248 Sample Dates: 10/14/2013

-10/21/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.52E-02 0.COE+00 1.52E-02 Cs-134 <7.40E-03 O.C0E+00 7.40E-03 Cs-137 <1.11 E-02 C.CCE+00 1.11 E-02 Be-7 <7.05E-02 O.CCE+00 7.05E-02 K-40 6.01E-01 8.50E-02 1.29E-01 (1) Analysis results generated by Harms Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 65 of 120 Duke Energy Annual Report -Appendix E En ) 13339 Hagers Ferry Road S- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 60 [ INDICATOR

-SE @ 0.2 miles ]Sample ID: 274620 Sample Dates: 10/21/2013

-10/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.71E-02 O.OOE+00 1.71E-02 Cs-134 <1.18E-02 0.00E+00 1.18E-02 Cs-137 <1.43E-02 O.OOE+00 1.43E-02 Be-7 <1.20E-01 O.OOE+00 1.20E-01 K-40 3.47E-01 8.67E-02 5.86E-02 Sample ID: 275208 Sample Dates: 10/28/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.50E-02 0.OOE+00 2.50E-02 Cs-1 34 <1.44E-02 O.OOE+00 1.44E-02 Cs-1 37 <1.75E-02 0.00E+00 1.75E-02 Be-7 <1.42E-01 O.OOE+00 1.42E-01 K-40 4.48E-01 1.29E-01 7.09E-02 Sample ID: 277042 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.12E-02 O.OOE+00 2.12E-02 Cs-1 34 <8.93E-03 O.OOE+00 8.93E-03 Cs-1 37 <1.77E-02 0.OOE+00 1.77E-02 Be-7 <1.12E-01 O.OOE+00 1.12E-01 K-40 3.38E-01 9.39E-02 2.49E-01 Sample ID: 277052 Sample Dates: 11/18/2013

-11/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.39E-02 0.OOE+00 2.39E-02 Cs-134 <1.09E-02 0.00E+00 1.09E-02 Cs-137 <1.34E-02 O.00E+00 1.34E-02 Be-7 <2.58E-02 O.00E+00 2.58E-02 K-40 2.61E-01 9.66E-02 1.57E-01 Sample ID: 277062 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.80E-02 O.OOE+00 1.80E-02 Cs-134 <1.30E-02 O.OOE+00 1.30E-02 Cs-137 <1.90E-02 0.00E+00 1.90E-02 Be-7 <1.15E-01 0.00E+00 1.15E-01 K-40 <4.58E-01 O.OOE+00 4.58E-01 Sample ID: 278784 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.15E-02 O.OOE+00 2.15E-02 Cs-134 <1.44E-02 O.OOE+00 1.44E-02 Cs-1 37 <2.39E-02 0.00E+00 2.39E-02 Be-7 <1.24E-01 0.00E+00 1.24E-01 K-40 4.69E-01 1.10E-01 2.35E-01 Sample ID: 278855 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.84E-02 0.00E+00 1.84E-02 Cs-1 34 <1.34E-02 O.OOE+00 1.34E-02 Cs-137 <1.10E-02 O.OOE+00 1.10E-02 Be-7 <1.24E-01 0.OOE+00 1.24E-01 K-40 5.62E-01 1.12E-01 1.65E-01 Sample ID: 279095 Sample Dates: 12/9/2013

-12/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.35E-02 O.OOE+00 1.35E-02 Cs-134 <1.48E-02 O.OOE+00 1.48E-02 Cs-137 <1.98E-02 O.OOE+00 1.98E-02 Be-7 <1.05E-01 O.OOE+00 1.05E-01 K-40 4.23E-01 1.06E-01 2.40E-01 Sample ID: 279723 Sample Dates: 12/16/2013

-12/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.69E-02 0.OOE+00 1.69E-02 Cs-134 <9.04E-03 O.OOE+00 9.04E-03 Cs-137 <1.02E-02 0.OOE+00 1.02E-02 Be-7 <7.81 E-02 0.OOE+00 7.81 E-02 K-40 5.19E-01 9.32E-02 1.49E-01 Sample ID: 280212 Sample Dates: 12/23/2013

-12/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.18E-02 O.OOE+00 3.18E-02 Cs-1 34 <1.38E-02 O.OOE+00 1.38E-02 Cs-137 <1.31E-02 O.OOE+00 1.31E-02 Be-7 <1.23E-01 O.OOE+00 1.23E-01 K-40 4.39E-01 9.81E-02 5.93E-02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 .H EnRad Laboratories Appendix E -Page 66 of 120 Duke Energy Annual Report -Appendix E .13339 Hagers Ferry Road ,D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 177520 Sample Dates: 11712013 -117/2013 Nuclide Activity Sigma Error (1)1-131 <1.82E-02 0.OOE+00 Sample ID: 177583 Sample Dates: 1/14/2013

-1/1412013 Nuclide Activity 1-131 <1.23E-02 Sample ID: 177628 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity 1-131 <1.90E-02 Sigma Error(1)0.00 E+00 Sigma Error(1)0.OOE+00 LLD 1.82E-02 LLD 1.23E-02 LLD 1.90E-02 Sample ID: 177662 Sample Dates: 1/28/2013

-1/28/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.25E-02 0.0OE+00 2.25E-02 Sample ID: 177696 Sample Dates: 2/4/2013 -2/412013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.74E-02 0.OOE+00 1.74E-02 Sample ID: 177741 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.82E-02 0.OOE+00 1.82E-02 Sample ID: 177779 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1)1-131 <1.02E-02 0.OOE+00 Sample ID: 177850 Sample Dates: 2/25/2013

-2/25/2013 Nuclide Activity Sigma Error (1)1-131 <1.66E-02 0.00E+00 LLD 1.02E-02 LLD 1.66E-02 Sample ID: 177886 Sample Dates: 3/4/2013 -3/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.08E-02 0.OOE+00 2.08E-02 Sample ID: 177935 Sample Dates: 3/11/2013

-3/1112013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.51E-02 O.OOE+00 1.51E-02 Sample ID: 177971 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.60E-02 0.OOE+00 1.60E-02 Sample ID: 177998 Sample Dates: 3/24/2013

-3/24/2013 Sample ID: 178032 Sample Dates: 4/11/2013

-4/1/2013 Sample ID: 178102 Sample Dates: 4/8/2013 -4/8/2013 Sample ID: 256384 Sample Dates: 4/8/2013 -4/15/2013 Sample ID: 256654 Sample Dates: 4/1512013

-4/2212013 Sample ID: 257188 Sample Dates: 4/2212013

-4/29/2013 Nuclide Activity 1-131 <1.81E-02 Sigma Error(1) LLD 0.OOE+00 1.81E-02 Nuclide Activity 1-131 <1.26E-02 Sigma Error (1) LLD 0.OOE+00 1.26E-02 Nuclide Activity Sigma Error (1) LLD 1-131 <1.92E-02 0.00E+00 1.92E-02 Nuclide Activity Sigma Error (1) LLD 1-131 <1.81E-02 O.OOE+00 1.81E-02 Cs-134 <1.19E-02 0.OOE+00 1.19E-02 Cs-137 <1.41E-02 O.OOE+00 1.41E-02 Be-7 <6.73E-02 0.00E+00 6.73E-02 K-40 <3.94E-01 0.OOE+00 3.94E-01 Nuclide Activity 1-131 Cs-134 Cs-137 Be-7 K-40<2.44E-02<1.39E-02<2.01 E-02<1.19E-01 4.94E-01 Sigma Error(1)0.OOE+00 0.OOE+00 0.00E+00 0.OOE+00 1.10E-01 LLD 2.44E-02 1.39E-02 2.01 E-02 1.19E-01 1.80E-01 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Activity Sigma Error (1) LLD<1.38E-02 0.OOE+00 1.38E-02<8.77E-03 0.OOE+00 8.77E-03<1.01E-02 0.OOE+00 1.01E-02<6.98E-02 0.OOE+00 6.98E-02<3.29E-01 0.OOE+00 3.29E-01 Sample ID: 257333 Sample Dates: 412912013

-5/6/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.97E-02 0.OOE+00 1.97E-02 Cs-134 <7.74E-03 0.OOE+00 7.74E-03 Cs-137 <1.66E-02 0.OOE+00 1.66E-02 Be-7 <6.21E-02 0.00E+00 6.21E-02 K-40 4.05E-01 9.54E-02 1.70E-01 Nuclide Activity Sigma Error (1) LLD 1-131 <1.61E-02 O.OOE+0O 1.61E-02 Sample ID: 257778 Sample Dates: 5/6/2013 -5/13/2013 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories EH ~ 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 67 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 257778 Sample Dates: 5/6/2013 -5/13/2013 Nuclide Activity Sigma Error (1) LLD Cs-1 34 <6.73E-03 O.OOE+00 6.73E-03 Cs-1 37 <1.53E-02 O.OOE+00 1.53E-02 Be-7 <6.76E-02 O.OOE+00 6.76E-02 K-40 <3.72E-01 O.OOE+00 3.72E-01 Sample ID: 258024 Sample Dates: 5/1312013

-5/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.59E-02 0.OOE+00 1.59E-02 Cs-134 <1.31E-02 0.OOE+00 1.31E-02 Cs-137 <1.18E-02 0.OOE+00 1.18E-02 Be-7 <8.85E-02 0.OOE+00 8.85E-02 K-40 3.76E-01 7.36E-02 1.06E-01 Sample ID: 258270 Sample Dates: 5120/2013

-5126/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.26E-02 0.00E+00 4.26E-02 Cs-1 34 <2.55E-02 0.OOE+00 2.55E-02 Cs-1 37 <2.56E-02 0.00E+00 2.56E-02 Be-7 <1.53E-01 0.OOE+00 1.53E-01 K-40 <6.56E-01 0.OOE+00 6.56E-01 Sample ID: 258606 Sample Dates: 5/26/2013

-6/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.40E-02 0.OOE+00 2.40E-02 Cs-134 <1.57E-02 O.OOE+00 1.57E-02 Cs-137 <1.47E-02 0.OOE+00 1.47E-02 Be-7 <1.52E-01 O.OOE+00 1.52E-01 K-40 <4.67E-01 O.00E+00 4.67E-01 Sample ID: 259080 Sample Dates: 6/3/2013 -6/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.49E-02 O.OOE+00 1.49E-02 Cs-134 <1.03E-02 O.OOE+00 1.03E-02 Cs-137 <1.15E-02 O.00E+00 1.15E-02 Be-7 <7.33E-02 O.00E+00 7.33E-02 K-40 4.63E-01 8.18E-02 1.06E-01 Sample ID: 259644 Sample Dates: 6/10/2013

-6/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.61E-02 O.00E+00 2.61E-02 Cs-1 34 <1.54E-02 0.OOE+00 1.54E-02 Cs-1 37 <1.72E-02 O.OOE+00 1.72E-02 Be-7 <1.35E-01 O.OOE+00 1.35E-01 K-40 <5.35E-01 0.OOE+00 5.35E-01 Sample ID: 260276 Sample Dates: 6/18/2013

-6124/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.48E-02 0.OOE+00 1.48E-02 Cs-134 <8.97E-03 0.OOE+00 8.97E-03 Cs-137 <1.22E-02 O.OOE+00 1.22E-02 Be-7 <6.98E-02 O.OOE+00 6.98E-02 K-40 6.28E-01 1.10E-01 1.06E-01 Sample ID: 260748 Sample Dates: 7/1/2013 -7/8/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.23E-02 0.OOE+00 1.23E-02 Cs-134 <8.99E-03 O.OOE+00 8.99E-03 Cs-137 <1.06E-02 0.OOE+00 1.06E-02 Be-7 <7.27E-02 O.OOE+00 7.27E-02 K-40 4.63E-01 8.06E-02 1.03E-01 Sample ID: 261687 Sample Dates: 7/8/2013 -7/15/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.12E-02 O.00E+00 1.12E-02 Cs-1 34 <7.03E-03 0.00E+00 7.03E-03 Cs-137 <1.23E-02 O.OOE+00 1.23E-02 Be-7 <5.10E-02 0.00E+00 5.10E-02 K-40 2.72E-01 7.04E-02 1.48E-01 Sample ID: 261954 Sample Dates: 6/24/2013

-7/1/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.22E-02 O.OOE+00 2.22E-02 Cs-1 34 <2.15E-02 O.OOE+00 2.15E-02 Cs-1 37 <2.28E-02 O.OOE+00 2.28E-02 Be-7 <1.60E-01 0.OOE+00 1.60E-01 K-40 5.11E-01 1.20E-01 2.98E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 68 of 120 Duke Energy Annual Report -Appendix E En 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles I Sample ID: 262197 Sample Dates: 7/15/2013

-7/22/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.91E-02 0.OOE+00 2.91E-02 Cs-134 <2.29E-02 0.00E+00 2.29E-02 Cs-137 <1.99E-02 0.00E+00 1.99E-02 Be-7 <1.66E-01 0.OOE+00 1.66E-01 K-40 4.65E-01 1.16E-01 3.22E-01 Sample ID: 263653 Sample Dates: 7/29/2013

-8/5/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.81E-02 0.OOE+00 2.81E-02 Cs-134 <1.87E-02 O.00E+00 1.87E-02 Cs-137 <1.19E-02 O.OOE+00 1.19E-02 Be-7 <1.49E-01 0.00E+00 1.49E-01 K-40 6.17E-01 1.35E-01 2.80E-01 Sample ID: 265044 Sample Dates: 7/22/2013

-712912013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.27E-02 0.OOE+00 4.27E-02 Cs-1 34 <1.52E-02 0.OOE+00 1.52E-02 Cs-1 37 <2.40E-02 0.00E+00 2.40E-02 Be-7 <1.35E-01 0.OOE+00 1.35E-01 K-40 <5.47E-01 0.OOE+00 5.47E-01 Sample ID: 266660 Sample Dates: 8/5/2013 -8/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.65E-02 0.00E+00 2.65E-02 Cs-134 <1.57E-02 0.OOE+00 1.57E-02 Cs-137 <2.15E-02 0.00E+00 2.15E-02 Be-7 <1.95E-01 0.OOE+00 1.95E-01 K-40 3.82E-01 1.41 E-01 2.62E-01 Sample ID: 267541 Sample Dates: 8/12/2013

-8/20/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.92E-02 0.OOE+00 1.92E-02 Cs-1 34 <1.93E-02 0.OOE+00 1.93E-02 Cs-137 <1.49E-02 0.OOE+00 1.49E-02 Be-7 <1.53E-01 0.OOE+00 1.53E-01 K-40 3.28E-01 9.08E-02 1.81E-01 Sample ID: 268235 Sample Dates: 8/20/2013

-8/26/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.22E-02 0.OOE+00 3.22E-02 Cs-134 <2.30E-02 0.00E+00 2.30E-02 Cs-137 <2.22E-02 0.OOE+00 2.22E-02 Be-7 <1.61E-01 0.00E+00 1.61E-01 K-40 5.70E-01 1.38E-01 3.92E-01 Sample ID: 269706 Sample Dates: 8/26/2013

-9/3/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.94E-02 0.00E+00 1.94E-02 Cs-134 <1.23E-02 0.00E+00 1.23E-02 Cs-137 <1.24E-02 O.OOE+00 1.24E-02 Be-7 <1.01E-01 0.OOE+00 1.01E-01 K-40 <2.06E-01 0.00E+00 2.06E-01 Sample ID: 270614 Sample Dates: 9/3/2013 -9/9/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.89E-02 0.OOE+00 2.89E-02 Cs-134 <1.44E-02 0.00E+00 1.44E-02 Cs-137 <2.21E-02 0.00E+00 2.21E-02 Be-7 <1.89E-01 0.OOE+00 1.89E-01 K-40 5.68E-01 1.38E-01 2.53E-01 Sample ID: 271336 Sample Dates: 9/9/2013 -9/16/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.58E-02 0.00E+00 1.58E-02 Cs-134 <1.41E-02 0.00E+00 1.41E-02 Cs-137 <1.67E-02 0.00E+00 1.67E-02 Be-7 <1.13E-01 0.OOE+00 1.13E-01 K-40 <6.00E-01 0.O0E+00 6.00E-01 Sample ID: 271720 Sample Dates: 9/16/2013

-9/23/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.81E-02 0.OOE+00 1.81E-02 Cs-134 <1.84E-02 0.OOE+00 1.84E-02 Cs-137 <1.90E-02 0.OOE+00 1.90E-02 Be-7 <1.52E-01 0.00E+00 1.52E-01 K-40 4.41E-01 1.10E-01 2.64E-01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 69 of 120 Duke Energy Annual Report -Appendix E Eg 13339 Hagers Ferry Road S- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCilm3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 272359 Sample Dates: 9/23/2013

-9/3012013 Nuclide Activity Sigma Error (1)1-131 Cs-134 Cs-137 Be-7 K-40<2.11 E-02<1.71E-02<2.01 E-02<1.25E-01 4.75E-01 0.00E+00 0.00E+00 O.00E+00 O.00E+00 1.15E-01 LLD 2.11E-02 1.71E-02 2.01 E-02 1.25E-01 7.56E-02 Sample ID: 272779 Sample Dates: 9/30/2013

-10/7/2013 Sample ID: 274003 Sample Dates: 1017/2013

-1011412013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.34E-02 0.OOE+00 2.34E-02 Cs-134 <1.56E-02 0.OOE+00 1.56E-02 Cs-137 <1.48E-02 0.00E+00 1.48E-02 Be-7 <1.29E-01 0.OOE+00 1.29E-01 K-40 4.34E-01 1.12E-01 2.77E-01 Nuclide Activity Sigma Error (1) LLD 1-131 <2.89E-02 0.OOE+00 2.89E-02 Cs-1 34 <1.32E-02 0.OOE+00 1.32E-02 Cs-137 <1.23E-02 0.00E+00 1.23E-02 Be-7 <1.02E-01 0.00E+00 1.02E-01 K-40 <4.48E-01 0.00E+00 4.48E-01 Sample ID: 274249 Sample Dates: 10/14/2013

-10/21/2013 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Sample ID: 274622 Sample Dates: 10/21/2013

-10/28/2013 Nuclide 1-131 Cs-1 34 Cs-137 Be-7 K-40 Activity Sigma Error (1) LLD<2.46E-02 0.00E+00 2.46E-02<1.13E-02 0.00E+00 1.13E-02<1.62E-02 0.00E+00 1.62E-02<1.05E-01 0.OOE+00 1.05E-01 4.84E-01 1.08E-01 2.16E-01 Activity Sigma Error (1) LLD<1.26E-02 0.00E+00 1.26E-02<6.36E-03 0.OOE+00 6.36E-03<8.91 E-03 0.00E+00 8.91E-03<7.84E-02 0.OOE+00 7.84E-02 5.18E-01 8.77E-02 1.57E-01 Sample ID: 275209 Sample Dates: 10128/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.43E-02 0.OOE+00 2.43E-02 Cs-134 <1.90E-02 0.00E+00 1.90E-02 Cs-137 <2.91 E-02 0.OOE+00 2.91E-02 Be-7 <1.11 E-01 0.00E+00 1.11E-01 K-40 2.73E-01 1.20E-01 3.40E-01 Sample ID: 277043 Sample Dates: 11/4/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.49E-02 0.OOE+00 2.49E-02 Cs-1 34 <2.01 E-02 0.OOE+00 2.01E-02 Cs-137 <2.40E-02 0.00E+00 2.40E-02 Be-7 <1,O0E-01 0.OOE+00 1.OOE-01 K-40 <4.82E-01 0.OOE+00 4.62E-01 Sample ID: 277053 Sample Dates: 11/18/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.34E-02 0.00E+00 2.34E-02 Cs-134 <6.81E-03 0.00E+00 6.81E-03 Cs-137 <1.01E-02 0.00E+00 1.01E-02 Be-7 <8.30E-02 0.00E+00 8.30E-02 K-40 <3.63E-01 0.00E+00 3.63E-01 Sample ID: 277063 Sample Dates: 11/11/2013

-11/18/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.54E-02 0.00E+00 1.54E-02 Cs-1 34 <8.72E-03 0.00E+00 8.72E-03 Cs-1 37 <1.20E-02 0.00E+00 1.20E-02 Be-7 <9.38E-02 0.00E+00 9.38E-02 K-40 6.96E-01 9.75E-02 1.87E-01 Sample ID: 278785 Sample Dates: 11/25/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LID 1-131 <2.94E-02 0.000+00 2.94E-02 Cs-i 34 <1.87E-02 0.OOE+00 I1.87E-02 Cs-1 37 <1.48E-02 0.OOE+00 1.48E-02 Be-? <1.40E-01 0.OOE+00 1.40E-01 K-40 3.76E-01 1.04E-01 2.07E-01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories En 13339 Hagers Ferry Road--Huntersville, North Carolina 28078 Appendix E -Page 70 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: AIR RADIOIODINE Concentration (Activity):

pCi/m3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles ]Sample ID: 278856 Sample Dates: 12/2/2013

-12/9/2013 Nuclide Activity 1-131 <2.02E-02 Cs-134 <1.53E-02 Cs-137 <1.40E-02 Be-7 <1.64E-01 K-40 4.51 E-01 Nuclide Activity Sample ID: 279096 Sample Dates: 12/9/2013

-12/16/2013 Sample ID: 279724 Sample Dates: 12/16/2013

-12/23/2013 Sample ID: 280213 Sample Dates: 12/23/2013

-12/30/2013 1-131 Cs-1 34 Cs-1 37 Be-7 K-40<2.11 E-02<1.78E-02<1.94E-02<1.27E-01 4.69E-01 Sigma Error (1)0.OOE+00 0.00E+00 0.00E+00 0.OOE+00 1.06E-01 Sigma Error (1)0.00E+00 0.OOE+00 0.00E+00 0.00E+00 1.17E-01 Sigma Error (1)0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.OOE+00 LLD 2.02E-02 1.53E-02 1.40E-02 1.64E-01 2.69E-01 LLD 2.11E-02 1.78E-02 1.94E-02 1.27E-01 2.11E-01 LLD 2.61E-02 1.57E-02 2.17E-02 1.40E-01 6.15E-01 Nuclide Activity 1-131 <2.61E-02 Cs-1 34 <1.57E-02 Cs-137 <2.17E-02 Be-7 <1.40E-01 K-40 <6.15E-01 Nuclide Activity 1-131 <2.17E-02 Cs-134 <9.76E-03 Cs-137 <1.12E-02 Be-7 <8.87E-02 K-40 5.91E-01 Media Type: AQUATIC VEGETATION Concentration (Activity):

pCi/kg Sigma Error (1)0.00E+00 0.OOE+00 0.OOE+00 0.O0E+00 8.53E-02 LLD 2.17E-02 9.76E-03 1.12E-02 8.87E-02 8.82E-02 Sample Point 41 [ CONTROL -N @ 8 miles ]Sample ID: 259476 Sample Dates: 5/30/2013

-5/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.94E+01 0.OOE+00 1.94E+01 Cs-1 34 <7.53E+00 0.OOE+00 7.53E+00 Cs-137 <9.79E+00 0.OOE+00 9.79E+00 Be-7 <9.38E+01 0.OOE+00 9.38E+01 K-40 1.78E+03 9.81E+01 6.62E+01 Sample Point 45 [ INDICATOR

-@ 0 miles]Sample ID: 259474 Sample Dates: 5/30/2013

-5/30/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.59E+01 0.OOE+00 3.59E+01 Cs-1 34 <2.33E+01 0.OOE+00 2.33E+01 Cs-137 <2.22E+01 0.OOE+00 2.22E+01 Be-7 8.00E+02 1.15E+02 1.70E+02 K-40 5.06E+02 1.18E+02 2.31E+02 Sample Point 46 [ INDICATOR

-@ 0 miles]Sample ID: 259475 Sample Dates: 5/31/2013

-5/31/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.53E+01 0.OOE+00 2.53E+01 Cs-134 <1.25E+01 0.OOE+00 1.25E+01 Cs-137 <1.38E+01 0.00E+00 1.38E+01 Be-7 1.53E+03 9.32E+01 1.07E+02 K-40 1.25E+03 9.48E+01 1.04E+02 Sample Point 66 [ INDICATOR

-@ 0 miles]Sample ID: 259477 Sample Dates: 5/31/2013

-5/3112013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.89E+01 0.OOE+00 2.89E+01 Cs-1 34 <1.30E+01 0.OOE+00 1.30E+01 Cs-1 37 <1.78E+01 0.00E+00 1.78E+01 Be-7 5.40E+02 7.26E+01 1.14E+02 K-40 7.40E+02 1.05E+02 1.26E+02 Media Type: CROPS Concentration (Activity):

pCi/kg Sample Point 49 [ CONTROL -W @ 10 miles ]Sample ID: 279031 Sample Dates: 11/25/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Subtype COLLARDS 1-131 <3.73E+01 0.00E+00 3.73E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories DE 13339 Hagers Ferry Road-: Huntersville, North Carolina 28078 Appendix E -Page 71 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: CROPS Concentration (Activity):

pCilkg Sample Point 49 [ CONTROL -W @ 10 miles ]Sample ID: 279031 Sample Dates: 11/2512013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Subtype COLLARDS Cs-134 <2.11E+01 0.00E+00 2.11E+01 Cs-137 <2.38E+01 0.00E+00 2.38E+01 Be-7 <1.86E+02 0.00E+00 1.86E+02 K-40 3.73E+03 2.53E+02 1.50E+02 Sample Point 54 [ INDICATOR

-E @ 10.1 miles]Sample ID: 264471 Sample Dates: 712412013

-7/24/2013 Nuclide Activity Sigma Error (1) LLD Subtype WHEAT 1-131 <2.30E+01 0.OOE+00 2.30E+01 Cs-134 <1.25E+01 0.OOE+00 1.25E+01 Cs-137 <1.41E+01 0.00E+00 1.41E+01 Be-7 <1.34E+02 0.00E+00 1.34E+02 K-40 4.11E+03 2.09E+02 1.47E+02 Sample Point 58 [ INDICATOR

-@ 0 miles]Sample ID: 279030 Sample Dates: 11/25/2013

-11/25/2013 Nuclide Activity Sigma Error (1) LLD Subtype COLLARDS 1-131 <2.16E+01 0.00E+00 2.16E+01 Cs-1 34 <8.59E+00 0.00E+00 8.59E+00 Cs-1 37 <1.53E+01 0.00E+00 1.53E+01 Be-7 <1.31 E+02 0.OOE+00 1.31E+02 K-40 2.95E+03 1.62E+02 1.30E+02 Media Type: FISH Concentration (Activity):

pCi/kg Sample Point 45 [ INDICATOR

-@ 0 miles ]Sample ID: 175049 Sample Dates: 5/16/2012

-5/16/2012 Nuclide Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-1 34 Cs-137 K-40 Bi-214 Sample ID: 175050 Sample Dates: 5/16/2012

-5/16/2012 Nuclide Activity<1.30E+02<1.30E+02<2.60E+02<1.30E+02<2.60E+02<1.30E+02 4.35E+01 3.83E+03 8.80E+01 Sigma Error (1)0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.13E+01 5.79E+02 3.97E+01 LLD 1.30E+02 1.30E+02 2.60E+02 1.30E+02 2.60E+02 1.30E+02 1.50E+02 LLD 1.30E+02 1.30E+02 2.60E+02 1.30E+02 2.60E+02 1.30E+02 1.50E+02 Subtype: BOTMFEEDER Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-1 34 Cs-137 K-40 Pb-212 Bi-214 Pb-214 Activity Sigma Error (1)<1.30E+02 0.00E+00<1.30E+02 0.OOE+00<2.60E+02 0.OOE+00<1.30E+02 0.00E+00<2.60E+02 0.OOE+00<1.30E+02 0.OOE+00 4.21E+01 2.50E+01 3.OOE+03 4.99E+02 5.30E+01 2.66E+01 9.63E+01 4.19E+01 1.24E+02 4.24E+01 Subtype: FREESWIM Sample ID: 176986 Sample Dates: 11/12/2012-11/12/2012 Nuclide Activity Sigma Error (1) LLD Subtype: BOTMFEEDER Mn-54 <1.30E+02 0.OOE+00 1.30E+02 Co-58 <1.30E+02 0.00E+00 1.30E+02 Fe-59 <2.60E+02 0.OOE+00 2.60E+02 Co-60 <1.30E+02 0.00E+00 1.30E+02 Zn-65 <2.60E+02 0.OOE+00 2.60E+02 Cs-1 34 <1.30E+02 0.00E+00 1.30E+02 Cs-1 37 3.74E+01 1.42E+01 1.50E+02 K-40 2.51E+03 4.12E+02 Sample ID: 176987 Sample Dates: 11/7/2012

-11/7/2012 Nuclide Activity Sigma Error (1) LLD Subtype: FREESWIM Mn-54 <1.30E+02 0.OOE+00 1.30E+02 Co-5 <1.30E+02 0.00E+00 1.30E+02 Fe-59 <2.60E+02 0.OOE+00 2.60E+02 Co-60 <1.30E+02 0.OOE+00 1.30E+02 Zn-65 <2.60E+02 0.00E+00 2.60E+02 Cs-134 <1.30E+02 0.OOE+00 1.30E+02 Cs-1 37 3.51E+01 1.84E+01 1.50E+02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[g .13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 72 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: FISH Concentration (Activity):

pCi/kg Sample Point 45 [ INDICATOR

-@ 0 miles ]Sample ID: 176987 Sample Dates: 11/7/2012

-11/7/2012 Nuclide Activity Sigma Error (1) LLD Subtype: FREESWIM K-40 4.54E+03 6.39E+02 Bi-214 3.88E+01 2.62E+01 Sample Point 46 [ INDICATOR

-@ 0 miles]Sample ID: 176051 Sample Dates: 5/18/2012

-6118/2012 Nuclide Activity Sigma Error (1) LLD Subtype: BOTMFEEDER Mn-54 <1.30E+02 O.OOE+00 1.30E+02 Co-58 <1.30E+02 O.OOE+00 1.30E+02 Fe-59 <2.60E+02 O.OOE+O0 2.60E+02 Co-60 <1.30E+02 O.OOE+00 1.30E+02 Zn-65 <2.60E+02 O.OOE+00 2.60E+02 Cs-1 34 <1.30E+02 O.OOE+00 1.30E+02 Cs-137 2.77E+01 1.56E+01 1.50E+02 K-40 3.28E+03 4.91 E+02 Pb-212 3.71E+01 2.12E+01 Bi-214 6.22E+01 3.48E+01 Pb-214 6.40E+01 3.22E+01 Sample ID: 175052 Sample Dates: 6/18/2012

-5/18/2012 Nuclide Activity Sigma Error (1) LLD Subtype: FREESWIM Mn-54 <1.30E+02 O.OOE+00 1.30E+02 Co-58 <1.30E+02 O.OOE+00 1.30E+02 Fe-59 <2.60E+02 O.OOE+00 2.60E+02 Co-60 <1.30E+02 O.OOE+00 1.30E+02 Zn-65 <2.60E+02 O.OOE+00 2.60E+02 Cs-134 <1.30E+02 O.OOE+00 1.30E+02 Cs-137 5.21E+01 1.96E+01 1.50E+02 K-40 3.04E+03 5.10E+02 Sample ID: 176988 Sample Dates: 11/8/2012

-11/8/2012 Nuclide Activity Sigma Error (1) LLD Subtype: BOTMFEEDER Mn-54 <1.30E+02 O.OOE+00 1.30E+02 Co-58 <1.30E+02 O.OOE+00 1.30E+02 Fe-59 <2.60E+02 O.OOE+00 2.60E+02 Co-60 <1.30E+02 O.OOE+00 1.30E+02 Zn-65 <2.60E+02 O.OOE+00 2.60E+02 Cs-1 34 <1.30E+02 O.OOE+00 1.30E+02 Cs-1 37 1.82E+01 1.38E+01 1.50E+02 K-40 3.79E+03 5.88E+02 TI-208 1.66E+01 1.10E+01 Pb-212 2.63E+01 2.OOE+01 Bi-214 3.33E+01 2.94E+01 Pb-214 7.06E+01 3.13E+01 Sample ID: 176989 Sample Dates: 11/8/2012

-11/8/2012 Nuclide Activity Sigma Error (1) LLD Subtype: FREESWIM Mn-54 <1.30E+02 O.OOE+00 1.30E+02 Co-58 <1.30E+02 O.OOE+00 1.30E+02 Fe-59 <2.60E+02 O.OOE+00 2.60E+02 Co-60 <1.30E+02 O.OOE+00 1.30E+02 Zn-65 <2.60E+02 O.OOE+00 2.60E+02 Cs-134 <1.30E+02 O.OOE+00 1.30E+02 Cs-137 3.52E+01 1.84E+01 1.50E+02 K-40 4.14E+03 5.85E+02 Bi-214 5.20E+01 3.02E+01 Sample Point 47 [CONTROL -@ 0 miles]Sample ID: 175053 Sample Dates: 5/16/2012

-5/15/2012 Nuclide Activity Sigma Error (1) LLD Subtype: BOTMFEEDER Mn-54 <1.30E+02 O.OOE+00 1.30E+02 Co-58 <1.30E+02 O.OOE+00 1.30E+02 Fe-59 <2.60E+02 O.OOE+00 2.60E+02 Co-60 <1.30E+02 O.OOE+00 1.30E+02 Zn-65 <2.60E+02 O.OOE+00 2.60E+02 Cs-1 34 <1.30E+02 O.OOE+00 1.30E+02 Cs-1 37 4.20E+01 1.75E+01 1.50E+02 K-40 3.39E+03 5.78E+02 Pb-212 4.26E+01 3.OOE+01 Bi-214 1.46E+02 4.88E+01 Pb-214 1.06E+02 4.34E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 73 of 120 Duke Energy Annual Report -Appendix E E 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: FISH Concentration (Activity):

pCi/kg Sample Point 47 [ CONTROL -@ 0 miles ]Sample ID: 175054 Sample ID: 176990 Sample ID: 176991 Sample Dates: 5/15/2012

-5/15/2012 Nuclide Activity Sigma Error (1)Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 K-40 TI-208 Pb-212 Bi-214 Pb-214 Sample Dates: 1118/2012

-111812012 Nuclide Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-1 34 Cs-1 37 K-40 Bi-214 Pb-214 Sample Dates: 11/6/2012

-11/6/2012 Nuclide<1.30E+02<1.30E+02<2.60E+02<1.30E+02<2.60E+02<1.30E+02 7.75E+01 3.26E+03 2.35E+01 4.51 E+01 1.651+02 1.50E+02 Activity<1.30E+02<1.30E+02<2.60E+02<1.30E+02<2.60E+02<1.30E+02 3.12E+01 3.27E+03 1.44E+02 1.89E+02 0.00E+00 0.00+E00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.54E+01 5.74E+02 1.98E+01 2.91E+01 5.32E+01 4.05E+01 Sigma Error(1)0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.94E+01 5.60E+02 4.35E+01 4.81E+01 LLD Subtype: FREESWIM 1.30E+02 1.30E+02 2.60E+02 1.30E+02 2.60E+02 1.30E+02 1.50E+02 LLD Subtype: BOTMFEEDER 1.30E+02 1.30E+02 2.60E+02 1.30E+02 2.60E+02 1.30E+02 1.50E+02 Activity Mn-54 <1.30E+02 Co-58 <1.30E+02 Fe-59 <2.60E+02 Co-60 <1.30E+02 Zn-65 <2.60E+02 Cs-134 <1.30E+02 Cs-1 37 4.20E+01 K-40 3.42E+03 Pb-212 3.35E+01 Bi-214 9.62E+01 Pb-214 1.29E+02 Sigma Error(1)0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.01E+01 5.44E+02 2.68E+01 3.92E+01 3.92E+01 LLD 1.30E+02 1.30E+02 2.60E+02 1.30E+02 2.60E+02 1.30E+02 1.50E+02 Subtype: FREESWIM Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 42 [ INDICATOR

-@ 0 miles ]Sample ID: 177780 Sample Dates: 2/1212013 -2/12/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.00E+01 0.00E+00 3.00E+01 Zr-95 <1.50E+01 0.00E+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <1.50E+01 0.00E+00 1.50E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 2.14E+02 5.09E+01 Pb-212 9.87E+00 9.06E+00 Bi-214 3.02E+01 8.10E+00 Pb-214 4.81E+01 8.71E+00 Ra-226 1.48E+02 6.91E+01 Th-234 2.87E+02 1.10E+02 12/2013 -2/12/2013 Nuclide Activity Sigma Error(1) LLD H3GW <2.05E+02 0.00E+00 2.05E+02 Sample ID: 177826 Sample Dates: 2/Sample ID: 258452 Sample Dates: 5/22/2013

-5/22/2013 Nuclide Activity Mn-54 <6.63E+00 Co-58 <7.71E+00 Fe-59 <1.52E+01 Co-60 <1.08E+01 Sigma Error(1)0.00E+00 0.00E+00 0.00E+00 0.00E+00 LLD 6.63E+00 7.71E+00 1.52E+01 1.08E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories.E -13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 74 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 42 [ INDICATOR

-@ 0 miles ]Sample ID: 258452 Sample Dates: 5/2212013

-5/2212013 Nuclide Activity Sigma Error (1) LLD Zn-65 <1.64E+01 0.00E+00 1.64E+01 Zr-95 <1.25E+01 0.OOE+00 1.25E+01 Nb-95 <6.15E+00 O.00E+00 6.15E+00 1-131 <9.68E+00 0.00E+00 9.68E+00 Cs-134 <5.45E+00 0.00E+00 5.45E+00 Cs-1 37 <5.85E+00 0.OOE+00 5.85E+00 BaLa-140 <1.31E+01 0.00E+00 1.31E+01 Be-7 <4.97E+01 0.OOE+00 4.97E+01 K-40 1.29E+02 2.49E+01 6.86E+01 H3GW <1.15E+02 0.00E+00 1.88E+02 Sample ID: 271736 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.70E+00 0.00E+00 1.70E+00 Co-58 <2.37E+00 0.00E+00 2.37E+00 Fe-59 <6.27E+00 0.00E+00 6.27E+00 Co-60 <1.56E+00 0.OOE+00 1.56E+00 Zn-65 <3.94E+00 0.00E+00 3.94E+00 Zr-95 <4.75E+00 0.00E+00 4.75E+00 Nb-95 <4.13E+00 0.00E+00 4.13E+00 1-131 <1.13E+02 0.00E+00 1.13E+02 Cs-134 <1.58E+00 0.00E+00 1.58E+00 Cs-137 <1.65E+00 0.00E+00 1.65E+00 BaLa-140 <2.37E+01 0.00E+00 2.37E+01 Be-7 <2.51E+01 0.00E+00 2.51E+01 K-40 3.18E+02 1.38E+01 1.67E+01 H3GW <-3.1E+01 0.00E+00 1.82E+02 Sample ID: 277263 Sample Dates: 11/11/2013

-11/1112013 Nuclide Activity Sigma Error (1) LLD Mn-54 <5.14E+00 0.00E+00 5.14E+00 Co-58 <4.32E+00 0.00E+00 4.32E+00 Fe-59 <1.23E+01 0.00E+00 1.23E+01 Co-60 <7.01E+00 0.00E+00 7.01 E+00 Zn-65 <1.16E+01 0.00E+00 1.16E+01 Zr-95 <9.98E+00 0.0OE+00 9.98E+00 Nb-95 <6.55E+00 0.00E+00 6.55E+00 1-131 <8.41E+00 0.00E+00 8.41E+00 Cs-1i34 <4.95E+00 0.00E+00 4.95E+00 Cs-137 <6.28E+00 0.00E+00 6.28E+00 BaLa-140 <6.43E+00 0.00E+00 6.43E+00 Be-7 <3.60E+01 0.00E+00 3.60E+01 K-40 1.22E+02 2.55E+01 4.86E+01 H3GW <7.76E+01 0.00E+00 1.45E+02 Sample Point 64 [INDICATOR

-SE @ 0.6 miles]Sample ID: 177781 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.O0E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.00E+01 0.00E+00 3.00E+01 Zr-95 <1.50E+01 0.001+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <1.50E+01 0.00E+00 1.50E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 4.89E+02 7.24E+01 Bi-214 5.75E+01 1.01E+01 Pb-214 3.89E+01 8.36E+00 Ra-226 1.37E+02 8.49E+01 Sample ID: 177827 Sample Dates: 2/12/2013

-211212013 Nuclide Activity Sigma Error (1) LLD H3GW <2.06E+02 0.00E+00 2.06E+02 Sample ID: 258453 Sample Dates: 5122/2013

-5/22/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <7.26E+00 0.00E+00 7.26E+00 Co-58 <7.70E+00 0.00E+00 7.70E+00 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 75 of 120 Duke Energy Annual Report -Appendix E " 13339 Hagers Ferry Road S-~ Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 64 [ INDICATOR

-SE @ 0.6 miles ]Sample ID: 258453 Sample Dates: 512212013

-6/2212013 Nuclide Activity Sigma Error (1) LLD Fe-59 <1.45E+01 0.00E+00 1.45E+01 Co-60 <8.23E+00 O.OOE+00 8.23E+00 Zn-65 <1.45E+01 0.00E+00 1.45E+01 Zr-95 <1.43E+01 0.OOE+00 1.43E+01 Nb-95 <8.45E+00 0.00E+00 8.45E+00 1-131 <1.37E+01 0.OOE+00 1.37E+01 Cs-1 34 <7.57E+00 0.OOE+00 7.57E+00 Cs-1 37 <8.28E+00 0.00E+00 8.28E+00 BaLa-140 <9.82E+00 0.00E+00 9.82E+00 Be-7 <7.07E+01 0.OOE+00 7.07E+01 K-40 4.58E+02 7.06E+01 7.16E+01 H3GW <5.54E+01 0.00E+00 1.89E+02 Sample ID: 271737 Sample Dates: 811412013

-811412013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.68E+00 0.00E+00 2.68E+00 Co-58 <3.44E+00 0.00E+00 3.44E+00 Fe-59 <9.18E+00 0.00E+00 9.18E+00 Co-60 <3.32E+00 0.00E+00 3.32E+00 Zn-65 <6.14E+00 0.00E+00 6.14E+00 Zr-95 <7.02E+00 0.00E+00 7.02E+00 Nb-95 <6.48E+00 0.00E+00 6.48E+00 1-131 <1.16E+02 0.00E+00 1.16E+02 Cs-1 34 <2.48E+00 0.00E+00 2.48E+00 Cs-137 <2.70E+00 0.00E+00 2.70E+00 BaLa-140 <3.00E+01 0.00E+00 3.00E+01 Be-7 <3.68E+01 0.00E+00 3.68E+01 K-40 2.18E+02 1.95E+01 2.50E+01 H3GW <2.37E+00 0.00E+00 1.80E+02 Sample ID: 277241 Sample Dates: 11/11/2013

-11111/2013 Nuclide Activity Sigma Error(1) LLD Mn-54 <5.72E+00 0.00E+00 5.72E+00 Co-58 <6.76E+00 0.00E+00 6.76E+00 Fe-59 <1.19E+01 0.00E+00 1.19E+01 Co-60 <5.20E+00 0.OOE+00 5.20E+00 Zn-65 <9.81E+00 0.00E+00 9.81 E+00 Zr-95 <1.35E+01 0.00E+00 1.35E+01 Nb-95 <7.43E+00 0.00E+00 7.43E+00 1-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <6.28E+00 0.00E+00 6.28E+00 Cs-137 <6.45E+00 0.00E+00 6.45E+00 BaLa-140 <8.72E+00 0.00E+00 8.72E+00 Be-7 <5.86E+01 0.00E+00 5.86E+01 K-40 2.62E+02 5.79E+01 7.53E+01 H3GW <-1.7E+01 0.00E+00 1.45E+02 Sample Point 68 [INDICATOR

-@ 0 miles]Sample ID: 177744 Sample Dates: 2/1212013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD LLI-131 <3.01E-01 0.00E+00 3.01E-01 Sample ID: 177782 Sample Dates: 2/12/2013

-2112/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.00E+01 0.00E+00 3.00E+01 Zr-95 <1.50E+01 0.00E+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-1 34 <1.50E+01 0.00E+00 1.50E+01 Cs-1 37 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 2.44E+02 4.87E+01 Bi-214 2.45E+01 7.52E+00 Pb-214 1.54E+01 6.29E+00 Ra-226 1.90E+02 7.13E+01 Th-234 1.56E+02 1.05E+02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@4/14/201406:52:34

.EnRad Laboratories Appendix E -Page 76 of 120 Duke Energy Annual Report -Appendix E ' 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 68 [ INDICATOR

-@ 0 miles ]Sample ID: 177828 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD H3GW 5.05E+02 1.28E+02 2.04E+02 Sample ID: 258449 Sample Dates: 5/22/2013

-6122/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <7.09E+00 O.OOE+00 7.09E+00 Co-58 <7.83E+00 O.OOE+00 7.83E+00 Fe-59 <1.57E+01 O.00E+00 1.57E+01 Co-60 <1.01E+01 0.OOE+00 1.01E+01 Zn-65 <1.55E+01 0.00E+00 1.55E+01 Zr-95 <1.39E+01 0.OOE+00 1.39E+01 Nb-95 <8.26E+00 0.OOE+00 8.26E+00 1-131 <1.29E+01 O.00E+00 1.29E+01 Cs-1 34 <7.76E+00 O.OOE+00 7.76E+00 Cs-1 37 <1.OOE+01 0.OOE+00 1.OOE+01 BaLa-140 <1.28E+01 0.OOE+00 1.28E+01 Be-7 <5.82E+01 0.00E+00 5.82E+01 K-40 2.99E+02 3.84E+01 7.25E+01 Be-7 <4.85E+00 0.00E+00 4.85E+00 K-40 3.OOE+01 4.80E+00 5.98E+00 LLI-131 <6.48E-01 0.OOE+00 6.48E-01 H3GW 2.73E+02 6.16E+01 1.88E+02 Sample ID: 271733 Sample Dates: 8/19/2013

-8/19/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.76E+00 0.OOE+00 2.76E+00 Co-58 <3.59E+00 0.OOE+00 3.59E+00 Fe-59 <8.75E+00 0.OOE+00 8.75E+00 Co-60 <2.89E+00 0.00E+00 2.89E+00 Zn-65 <5.78E+00 0.OOE+00 5.78E+00 Zr-95 <6.30E+00 0.OOE+00 6.30E+00 Nb-95 <5.43E+00 0.OOE+00 5.43E+00 1-131 <6.27E+01 0.00E+00 6.27E+01 Cs-134 <2.37E+00 0.OOE+00 2.37E+00 Cs-137 <2.83E+00 0.00E+00 2.83E+00 BaLa-140 <2.20E+01 0.00E+00 2.20E+01 Be-7 <3.17E+01 0.OOE+00 3.17E+01 K-40 1.96E+02 1.73E+01 2.37E+01 Be-7 <4.19E+00 0.OOE+00 4.19E+00 K-40 1.38E+01 2.74E+00 3.44E+00 LLI-131 <7.54E+00 0.OOE+00 7.54E+00 H3GW <2.22E+01 0.00E+00 1.93E+02 Sample ID: 277264 Sample Dates: 11/11/2013

-11/11/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <6.75E+00 0.00E+00 6.75E+00 Co-58 <5.66E+00 0.OOE+00 5.66E+00 Fe-59 <1.25E+01 0.OOE+00 1.25E+01 Co-60 <7.11E+00 0.OOE+O0 7.11E+00 Zn-65 <1.26E+01 0.OOE+00 1.26E+01 Zr-95 <1.22E+01 0.OOE+00 1.22E+01 Nb-95 <7.89E+00 O.OOE+00 7.89E+00 1-131 <1.06E+01 0.OOE+00 1.06E+01 Cs-134 <5.36E+00 0.OOE+00 5.36E+00 Cs-137 <6.58E+00 0.OOE+00 6.58E+00 BaLa-140 <9.31 E+00 O.OOE+00 9.31E+00 Be-7 <5.73E+01 O.OOE+00 5.73E+01 K-40 2.61 E+02 4.34E+01 6.22E+01 Be-7 <2.87E+00 O.OOE+00 2.87E+00 K-40 2.25E+01 2.86E+00 4.07E+00 LLI-131 <6.27E-01 0.OOE+00 6.27E-01 H3GW 2.21E+02 4.81E+01 1.45E+02 Sample Point 69 [INDICATOR

-@ 0 miles]Sample ID: 177783 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.OOE+01 0.OOE+00 3.00E+01 Zr-95 <1.50E+01 O.OOE+00 1.50E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 77 of 120 Duke Energy Annual Report -Appendix E E rI 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/l Sample Point 69 [ INDICATOR

-@ 0 miles ]Sample ID: 177783 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD Nb-95 <1.50E+01 O.OOE+00 1.50E+01 1-131 <1.50E+01 O.OOE+00 1.50E+01 Cs-1 34 <1.50E+01 O.OOE+00 1.50E+01 Cs-1 37 <1.80E+01 O.OOE+00 1.80E+01 BaLa-140 <1.50E+01 O.OOE+00 1.50E+01 K-40 4.43E+02 6.30E+01 Pb-212 1.34E+01 6.32E+00 Bi-214 2.54E+01 7.60E+00 Pb-214 3.22E+01 8.33E+00 Ra-226 1.56E+02 8.12E+01 Sample ID: 177829 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD H3GW <2.05E+02 O.OOE+O0 2.05E+02 Sample ID: 258450 Sample Dates: 5/22/2013

-5/22/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <9.26E+00 O.OOE+00 9.26E+00 Co-58 <7.30E+00 O.OOE+00 7.30E+00 Fe-59 <2.40E+01 O.OOE+00 2.40E+01 Co-60 <1.28E+01 O.OOE+00 1.28E+01 Zn-65 <2.29E+01 O.OOE+00 2.29E+01 Zr-95 <1.42E+01 O.OOE+00 1.42E+01 Nb-95 <1.08E+01 O.OOE+00 1.08E+01 1-131 <1.44E+01 O.OOE+00 1.44E+01 Cs-134 <6.66E+00 O.OOE+00 6.66E+00 Cs-137 <1.09E+01 O.OOE+00 1.09E+01 BaLa-140 <1.45E+01 O.OOE+00 1.45E+01 Be-7 <6.89E+01 O.OOE+00 6.89E+01 K-40 <1.78E+02 O.OOE+00 1.78E+02 H3GW <4.57E+01 O.OOE+00 1.89E+02 Sample ID: 271734 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.65E+00 O.OOE+00 2.65E+00 Co-58 <3.36E+00 O.OOE+00 3.36E+00 Fe-59 <8.84E+00 O.OOE+00 8.84E+00 Co-60 <3.16E+00 O.OOE+00 3.16E+00 Zn-65 <6.22E+00 O.OOE+00 6.22E+00 Zr-95 <6.50E+00 O.OOE+00 6.50E+00 Nb-95 <5.81E+00 O.OOE+00 5.81E+00 1-131 <1.07E+02 O.OOE+00 1.07E+02 Cs-1 34 <2.28E+00 O.OOE+00 2.28E+00 Cs-1 37 <2.90E+00 O.OOE+00 2.90E+00 BaLa-140 <3.20E+01 O.OOE+00 3.20E+01 Be-7 <3.46E+01 O.OOE+00 3.46E+01 K-40 2.30E+02 1.86E+01 2.49E+01 H3GW <9.82E+00 O.OOE+00 1.93E+02 Sample ID: 277266 Sample Dates: 11/11/2013-11/11/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <6.02E+00 O.OOE+00 6.02E+00 Co-58 <6.14E+00 O.OOE+00 6.14E+00 Fe-59 <1.04E+01 O.OOE+00 1.04E+01 Co-60 <6.49E+00 O.OOE+00 6.49E+00 Zn-65 <1.46E+01 O.OOE+00 1.46E+01 Zr-95 <1.16E+01 O.OOE+00 1.16E+01 Nb-95 <7.82E+00 O.OOE+00 7.82E+00 1-131 <1.08E+01 O.OOE+00 1.08E+01 Cs-1 34 <5.40E+00 O.OOE+00 5.40E+00 Cs-137 <7.18E+00 O.OOE+00 7.18E+00 BaLa-140 <1.30E+01 O.OOE+00 1.30E+01 Be-7 <4.85E+01 O.OOE+00 4.85E+01 K-40 1.68E+02 3.25E+01 7.37E+01 H3GW <2.09E+01 O.OOE+00 1.45E+02 Sample Point 70 [INDICATOR

-@ 0 miles]Sample ID: 177784 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 O.OOE+00 1.50E+01 Fe-59 <3.OOE+01 O.OOE+00 3.OOE+01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[g 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 78 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pCII Sample Point 70 [ INDICATOR

-@ 0 miles ]Sample ID: 177784 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD Co-60 <1.50E+01 0.OOE+00 1.50E+01 Zn-65 <3.OOE+01 O.OOE+00 3.OOE+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.OOE+00 1.50E+01 1-131 <1.50E+01 0.00E+00 .1.50E+01 Cs-1 34 <1.50E+01 0.OOE+00 1.50E+01 Cs-1 37 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.OOE+00 1.50E+01 K-40 1.92E+02 4.90E+01 Bi-214 3.60E+01 8.22E+00 Pb-214 3.57E+01 8.50E+00 Ra-226 1.91E+02 6.55E+01 Th-234 1.15E+02 9.63E+01 Sample ID: 177830 Sample Dates: 2/13/2013

-2113/2013 Nuclide Activity Sigma Error (1) LLD H3GW <2.05E+02 0.00E+00 2.05E+02 Sample ID: 258451 Sample Dates: 5/2212013

-5/22/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <7.04E+00 0.OOE+00 7.04E+00 Co-58 <7.73E+00 0.OOE+00 7.73E+00 Fe-59 <1.73E+01 0.00E+00 1.73E+01 Co-60 <8.88E+00 0.00E+00 8.88E+00 Zn-65 <1.68E+01 0.00E+00 1.68E+01 Zr-95 <1.28E+01 0.00E+00 1.28E+01 Nb-95 <8.05E+00 0.OOE+00 8.05E+00 1-131 <1.13E+01 0.00E+00 1.13E+01 Cs-134 <7.12E+00 0.00E+00 7.12E+00 Cs-137 <9.36E+00 0.OOE+00 9.36E+00 BaLa-140 <1.37E+01 0.00E+00 1.37E+01 Be-7 <7.12E+01 0.OOE+00 7.12E+01 K-40 3.63E+02 4.56E+01 6.62E+01 H3GW <1.20E+01 0.00E+00 1.88E+02 Sample ID: 271736 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.42E+00 0.00E+00 2.42E+00 Co-58 <3.46E+00

.0.00E+00 3.46E+00 Fe-59 <8.46E+00 0.00E+00 8.46E+00 Co-60 <2.97E+00 0.00E+00 2.97E+00 Zn-65 <5.23E+00 0.00E+00 5.23E+00 Zr-95 <5.92E+00 0.00E+00 5.92E+00 Nb-95 <5.27E+00 0.00E+00 5.27E+00 1-131 <9.40E+01 0.00E+00 9.40E+01 Cs-1 34 <2.07E+00 0.00E+00 2.07E+00 Cs-137 <2.27E+00 0.00E+00 2.27E+00 BaLa-140 <3.10E+01 0.00E+00 3.10E+01 Be-7 <2.95E+01 0.00E+00 2.95E+01 K-40 <4.97E+01 0.00E+00 4.97E+01 H3GW <-6.1E+01 0.00E+00 1.92E+02 Sample ID: 277266 Sample Dates: 11/11/2013-11/11/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <7.12E+00 0.00E+00 7.12E+00 Co-58 <7.82E+00 0.00E+00 7.82E+00 Fe-59 <1.81E+01 0.00E+00 1.81E+01 Co-60 <8.04E+00 0.00E+00 8.04E+00 Zn-65 <1.93E+01 0.00E+00 1.93E+01 Zr-95 <1.32E+01 0.00E+00 1.32E+01 Nb-95 <8.64E+00 0.00E+00 8.64E+00 1-131 <1.32E+01 0.00E+00 1.32E+01 Cs-134 <8.04E+00 0.00E+00 8.04E+00 Cs-137 <7.88E+00 0.00E+00 7.88E+00 BaLa-140 <1.31E+01 0.00E+00 1.31E+01 Be-7 <6.40E+01 0.00E+00 6.40E+01 K-40 2.85E+02 4.92E+01 6.86E+01 H3GW <-1.5E+01 0.00E+00 1.45E+02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 79 of 120 Duke Energy Annual Report -Appendix E E 13339 Hagers Ferry Road-* Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pCll Sample Point 71 [ INDICATOR

-NNW @ 0.87 miles ]Sample ID: 177785 Sample Dates: 2112/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 O.OOE+00 1.50E+01 Fe-59 <3.OOE+01 O.00E+00 3.OOE+01 Co-60 <1.50E+01 O.OOE+00 1.50E+01 Zn-65 <3.OOE+01 O.OOE+00 3.OOE+01 Zr-95 <1.50E+01 O.OOE+00 1.50E+01 Nb-95 <1.50E+O1 O.OOE+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-1 34 <1.50E+01 O.OOE+00 1.50E+01 Cs-1 37 <1.80E+01 O.OOE+00 1.80E+01 BaLa-140 <1.50E+01 O.OOE+00 1.50E+01 K-40 5.61E+02 7.60E+01 Pb-212 1.66E+01 1.27E+01 Bi-214 2.81E+01 8.09E+00 Pb-214 2.49E+01 9.10E+00 Sample ID: 177831 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD H3GW 8.16E+02 1.32E+02 2.05E+02 Sample ID: 258442 Sample Dates: 5/14/2013

-5/1412013 Nuclide Activity Sigma Error (1) LLD Mn-54 <3.48E+00 O.OOE+00 3.48E+00 Co-58 <3.39E+00 O.OOE+00 3.39E+00 Fe-59 <7.86E+00 O.OOE+00 7.86E+00 Co-60 <3.06E+00 O.OOE+00 3.06E+00 Zn-65 <6.96E+00 O.OOE+00 6.96E+00 Zr-95 <6.70E+00 O.OOE+00 6.70E+00 Nb-95 <4.66E+00 O.OOE+00 4.66E+00 1-131 <1.42E+01 O.OOE+00 1.42E+01 Cs-134 <3.39E+00 O.OOE+00 3.39E+00 Cs-1 37 <3.45E+00 O.OOE+00 3.45E+00 BaLa-140 <7.76E+00 O.OOE+00 7.76E+00 Be-7 <3.70E+01 O.OOE+00 3.70E+01 K-40 5.81E+02 2.85E+01 2.89E+01 H3GW 5.47E+02 6-62E+01 1.89E+02 Sample ID: 271727 Sample Dates: 8/13/2013

-8/13/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <9.55E-01 O.OOE+00 9.55E-01 Co-58 <1.28E+00 O.OOE+00 1.28E+00 Fe-59 <3.12E+00 O.OOE+00 3.12E+00 Co-60 <8.79E-01 O.OOE+00 8.79E-01 Zn-65 <2.14E+00 O.OOE+00 2.14E+00 Zr-95 <2.42E+00 O.OOE+00 2.42E+00 Nb-95 <2.29E+00 O.OOE+00 2.29E+00 1-131 <4.50E+01 0.00E+00 4.50E+01 Cs-1 34 <8.97E-01 O.OOE+00 8.97E-01 Cs-1 37 <9.43E-01 O.OOE+00 9.43E-01 BaLa-140 <1.03E+01 O.OOE+00 1.03E+01 Be-7 <1.41 E+01 O.OOE+00 1.41 E+01 K-40 1.60E+02 6.72E+00 8.64E+00 H3GW <7.59E+01 O.OOE+00 1.85E+02 Sample ID: 277242 Sample Dates: 11/12/2013

-11112/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <7.31E+00 O.OOE+00 7.31E+00 Co-58 <3.73E+00 O.OOE+00 3.73E+00 Fe-59 <1.50E+01 O.OOE+00 1.50E+01 Co-60 <7.42E+00 o.OoE+00 7.42E+00 Zn-65 <1.38E+01 0.00E+00 1.38E+01 Zr-95 <1.35E+01 O.OOE+00 1.35E+01 Nb-95 <6.56E+00 O.OOE+00 6.56E+00 1-131 <1.08E+01 O.OOE+00 1.08E+01 Cs-134 <6.83E+00 O.OOE+00 6.83E+00 Cs-137 <8.33E+00 O.OOE+00 8.33E+00 BaLa-140 <8.43E+00 O.OOE+00 8.43E+00 Be-7 <5.48E+01 O.OOE+00 5.48E+01 K-40 9.70E+01 2.35E+01 8.24E+01 H3GW <1.37E+02 O.OOE+00 1.44E+02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error. results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 , EnRad Laboratories Appendix E -Page 80 of 120 Duke Energy Annual Report -Appendix E E 13339 Hagers Ferry Road D -Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pCII Sample Point 72 [ INDICATOR

-E @ 0.1 miles ]Sample ID: 177786 Sample Dates: 211112013

-2111/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 O.OOE+00 1.50E+01 Fe-59 <3.OOE+01 O.OOE+00 3.OOE+01 Co-60 <1.50E+01 O.OOE+00 1.50E+01 Zn-65 <3.OOE+01 O.OOE+00 3.OOE+01 Zr-95 <1.50E+01 O.OOE+00 1.50E+01 Nb-95 <1.50E+01 O.OOE+00 1.50E+01 1-131 <1.50E+01 O.OOE+00 1.50E+01 Cs-134 <1.50E+01 O.OOE+00 1.50E+01 Cs-137 <1.80E+01 O.OOE+00 1.80E+01 BaLa-140 <1.50E+01 O.OOE+00 1.50E+01 K-40 2.74E+02 5.73E+01 TI-208 1.15E+01 3.92E+00 Pb-212 4.01E+01 1.41E+01 Bi-214 4.92E+01 9.91 E+00 Pb-214 6.31E+01 9.94E+00 Ra-226 2.30E+02 7.60E+01 Ac-228 2.90E+01 1.45E+01 Th-234 1.42E+02 1.18E+02 Sample ID: 177832 Sample Dates: 2/11/2013

-2/1112013 Nuclide Activity Sigma Error (1) LLD H3GW 3.61 E+02 1.28E+02 2.05E+02 Sample ID: 258446 Sample Dates: 6/16/2013

-5/15/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <3.22E+00 Co-58 <3.70E+00 Fe-59 <7.73E+00 Co-60 <3.58E+00 Zn-65 <6.64E+00 Zr-95 <6.30E+00 Nb-95 <4.59E+00 1-131 <1.18E+01 Cs-1i34 <2.97E+00 Cs-137 <3.43E+00 BaLa-140 <1.13E+01 Be-7 <2.90E+01 K-40 1.32E+02 H3GW 2.34E+02 Sample ID: 271729 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Mn-54 <1.89E+00 Co-58 <2.86E+00 Fe-59 <7.66E+00 Co-60 <1.77E+00 Zn-65 <4.44E+00 Zr-95 <5.40E+00 Nb-95 <5.13E+00 1-131 <1.96E+02 Cs-134 <1.78E+00 Cs-137 <1.72E+00 BaLa-140 <3.44E+01 Be-7 <2.97E+01 K-40 2.90E+02 H3GW <3.44E+01 Sample ID: 277243 Sample Dates: 11/13/2013-11/1312013 Nuclide Activity Mn-54 <7.16E+00 Co-58 <6.65E+00 Fe-59 <1.36E+01 Co-60 <7.73E+00 Zn-65 <1.40E+01 Zr-95 <1.38E+01 Nb-95 <7.58E+00 1-131 <9.73E+00 Cs-1 34 <6.67E+00 Cs-1 37 <7.30E+00 BaLa-140 <1.12E+01 Be-7 <5.69E+01 O.OOE+00 3.22E+00 O.OOE+00 3.70E+00 0.00E+00 7.73E+00 0.00E+00 3.58E+00 0.00E+00 6.64E+00 O.OOE+00 6.30E+00 O.OOE+00 4.59E+00 O.OOE+00 1.18E+01 O.OOE+00 2.97E+00 O.OOE+00 3.43E+00 O.OOE+00 1.13E+01 O.OOE+00 2.90E+01 2.07E+01 3.62E+01 6.08E+01 1.87E+02 Sigma Error(1) LLD 0.OOE+00 1.89E+00 0.OOE+00 2.86E+00 O.OOE+00 7.66E+00 0.00E+00 1.77E+00 0.00E+00 4.44E+00 0.OOE+00 5.40E+00 0.OOE+00 5.13E+00 O.OOE+00 1.96E+02 0.00E+00 1.78E+00 O.OOE+00 1.72E+00 0.OOE+00 3.44E+01 O.OOE+00 2.97E+01 1.71E+01 1.79E+01 0.00E+00 1.93E+02 Sigma Error(1) LLD 0.OOE+00 7.16E+00 0.00E+00 6.65E+00 O.O0E+00 1.36E+01 0.00E+00 7.73E+00 0.00E+00 1.40E+01 0.00E+00 1.38E+01 0.00E+00 7.58E+00 0.00E+00 9.73E+00 O.OOE+00 6.67E+00 O.OOE+00 7.30E+00 O.OOE+00 1.12E+01 O.OOE+00 5.69E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories EnI 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 81 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 72 [ INDICATOR

-E @ 0.1 miles ]Sample ID: 277243 Sample Dates: 11/1312013

-11/13/2013 Nuclide Activity Sigma Error (1) LLD K-40 2.88E+02 4.66E+01 8.38E+01 H3GW 1.91 E+02 4.74E+01 1.44E+02 Sample Point 73 [INDICATOR

-ENE @ 0.11 miles]Sample ID: 177792 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Mn-54 <1.50E+01 Co-58 <1.50E+01 Fe-59 <3.OOE+01 Co-60 <1.50E+01 Zn-65 <3.00E+01 Zr-95 <1.50E+01 Nb-95 <1.50E+01 1-131 <1.50E+01 Cs-1 34 <1.50E+01 Cs-137 <1.80E+01 BaLa-140 <1.50E+01 K-40 5.54E+02 Bi-214 3.42E+01 Pb-214 3.43E+01 Ra-226 8.60E+01 Sample ID: 177833 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity H3GW 6.98E+02 Sample ID: 268448 Sample Dates: 5/14/2013

-5/14/2013 Nuclide Activity Mn-54 <4.03E+00 Co-58 <4.65E+00 Fe-59 <1.02E+01 Co-60 <4.07E+00 Zn-65 <8.94E+00 Zr-95 <8.27E+00 Nb-95 <5.22E+00 1-131 <1.45E+01 Cs-134 <4.38E+00 Cs-137 <4.17E+00 BaLa-140 <8.90E+00 Be-7 <3.96E+01 K-40 4.11E+02 H3GW 4.OOE+02 Sample ID: 271724 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Mn-54 <2.31E+00 Co-58 <3.42E+00 Fe-59 <8.90E+00 Co-60 <2.57E+00 Zn-65 <4.95E+00 Zr-95 <5.92E+00 Nb-95 <5.13E+00 1-131 <9.89E+01 Cs-134 <2.02E+00 Cs-137 <2.25E+00 BaLa-140 <2.80E+01 Be-7 <3.48E+01 K-40 1.18E+02 H3GW <8.10E+01 Sample ID: 277249 Sample Dates: 11/13/2013-11/13/2013 Nuclide Activity Mn-54 <7.16E+00 Co-58 <6.00E+00 Fe-59 <1.19E+01 Co-60 <6.99E+00 Zn-65 <1.36E+01 Zr-95 <1.30E+01 Nb-95 <7.21E+00 1-131 <9.99E+00 Cs-134 <6.68E+00 Cs-1 37 <7.55E+00 Sigma Error(1) LLD O.OOE+00 1.50E+01 0.OOE+00 1.50E+01 0.00E+00 3.OOE+01 0.OOE+00 1.50E+01 0.OOE+00 3.OOE+01 0.00E+00 1.50E+01 0.OOE+00 1.50E+01 0.OOE+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.80E+01 O.OOE+00 1.50E+01 7.95E+01 9.50E+00 8.43E+00 8.02E+01 Sigma Error(1) LLD 1.31E+02 2.06E+02 Sigma Error(1) LLD 0.OOE+00 4.03E+00 0.00E+00 4.65E+00 0.OOE+00 1.02E+01 O.OOE+00 4.07E+00 0.OOE+00 8.94E+00 0.00E+00 8.27E+00 0.00E+00 5.22E+00 0.00E+00 1.45E+01 0.OOE+00 4.38E+00 0.00E+00 4.17E+00 0.OOE+00 8.90E+00 0.O0E+00 3.96E+01 2.87E+01 3.98E+01 6.39E+01 1.89E+02 Sigma Error(1) LLD 0.00E+00 2.31E+00 O.OOE+00 3.42E+00 O.OOE+00 8.90E+00 0.OOE+00 2.57E+00 0.OOE+00 4.95E+00 0.00E+00 5.92E+00 0.OOE+00 5.13E+00 0.00E+00 9.89E+01 0.OOE+00 2.02E+00 0.00E+00 2.25E+00 0.00E+00 2.80E+01 0.00E+00 3.48E+01 1.87E+01 2.32E+01 0.00E+00 1.85E+02 Sigma Error(1) LLD 0.0OE+00 7.16E+00 0.00E+00 6.00E+00 0.00E+00 1.19E+01 0.00E+00 6.99E+00 0.00E+00 1.36E+01 0.00E+00 1.30E+01 0.00E+00 7.21 E+00 0.00E+00 9.99E+00 0.00E+00 6.68E+00 0.00E+00 7.55E+00 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories En 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 82 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 73 [ INDICATOR

-ENE @ 0.11 miles ]Sample ID: 277249 Sample Dates: 11/1312013

-11113/2013 Nuclide Activity Sigma Error (1) LLD BaLa-140 <9.68E+00 0.OOE+00 9.68E+00 Be-7 <6.41E+01 0.00E+00 6.41E+01 K-40 3.24E+02 5.57E+01 6.44E+01 H3GW <1.39E+02 0.00E+00 1.44E+02 Sample Point 75 [INDICATOR

-NE @ 0.05 miles]Sample ID: 177793 Sample Dates: 2/11/2013

-211112013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.OOE+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 O.OOE+00 3.00E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.OOE+01 0.OOE+00 3.OOE+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.OOE+00 1.50E+01 Cs-134 <1.50E+01 0.OOE+00 1.50E+01 Cs-137 <1.80E+01 0.OOE+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 2.44E+02 5.15E+01 TI-208 3.87E+00 2.842+00 Pb-212 7.82E+00 2.68E+00 Bi-214 3.94E+01 8.81E+00 Pb-214 4.21E+01 8.67E+00 Ra-226 2.10E+02 6.34E+01 Th-234 2.1OE+02 1.19E+02 Sample ID: 177834 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD H3GW 3.47E+02 1.28E+02 2.05E+02 Sample ID: 258447 Sample Dates: 5/14/2013

-5/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <5.73E+00 0.00E+00 5.73E+00 Co-58 <5.08E+00 0.OOE+00 5.08E+00 Fe-59 <1.06E+01 0.OOE+00 1.06E+01 Co-60 <7.19E+00 0.OOE+00 7.19E+00 Zn-65 <1.12E+01 0.00E+00 1.12E+01 Zr-95 <9.48E+00 0.00E+00 9.48E+00 Nb-95 <5.38E+00 0.00E+00 5.38E+00 1-131 <1.40E+01 0.OOE+00 1.40E+01 Cs-1 34 <4.09E+00 0.00E+00 4.09E+00 Cs-137 <4.82E+00 O.OOE+00 4.82E+00 BaLa-140 <1.08E+01 0.00E+00 1.08E+01 Be-7 <3.76E+01 0.00E+00 3.76E+01 K-40 1.24E+02 2.23E+01 5.06E+01 H3GW <1.40E+02 0.OOE+00 1.90E+02 Sample ID: 271723 Sample Dates: 8/1412013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.79E+00 0.OOE+00 1.79E+00 Co-58 <2.37E+00 0.00E+00 2.37E+00 Fe-59 <6.10E+00 0.00E+00 6.10E+00 Co-60 <1.72E+00 0.00E+00 1.72E+00 Zn-65 <3.57E+00 0.00E+00 3.57E+00 Zr-95 <4.52E+00 0.00E+00 4.52E+00 Nb-95 <3.90E+00 0.00E+00 3.90E+00 1-131 <9.77E+01 0.00E+00 9.77E+01 Cs-1 34 <1.57E+00 0.00E+00 1.57E+00 Cs-137 <1.55E+00 0.00E+00 1.55E+00 BaLa-140 <2.04E+01 0.00E+00 2.04E+01 Be-7 <2.51E+01 0.00E+00 2.51E+01 K-40 3.18E+02 1.48E+01 1.47E+01 H3GW <9.21E+01 0.00E+00 1.84E+02 Sample ID: 277256 Sample Dates: 11/13/2013

-11/13/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <6.01E+00 0.00E+00 6.01E+00 Co-58 <6.34E+00 0.00E+00 6.34E+00 Fe-59 <1.10E+01 0.00E+00 1.10E+01 Co-60 <6.93E+00 0.00E+00 6.93E+00 Zn-65 <1.44E+01 0.00E+00 1.44E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 83 of 120 Duke Energy Annual Report -Appendix E E 9 13339 Hagers Ferry Road S- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 75 [ INDICATOR

-NE @ 0.05 miles ]Sample ID: 277256 Sample Dates: 11/13/2013

-11113/2013 Nuclide Activity Sigma Error (1) LLD Zr-95 <1.15E+01 0.OOE+00 1.15E+01 Nb-95 <7.09E+00 0.00E+00 7.09E+00 1-131 <8.86E+00 0.00E+00 8.86E+00 Cs-1 34 <5.58E+00 0.00E+00 5.58E+00 Cs-137 <5.97E+00 0.OOE+00 5.97E+00 BaLea-140

<6.36E+00 0.00E+00 6.36E+00 Be-7 <4.81E+01 O.OOE+00 4.81E+01 K-40 1.18E+02 3.77E+01 6.75E+01 H3GW 1.65E+02 4.70E+01 1.45E+02 Sample Point 76 [INDICATOR

-N @ 0.49 miles ]Sample ID: 177794 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Mn-54 <1.50E+01 Co-58 <1.50E+01 Fe-59 <3.00E+01 Co-60 <1.50E+01 Zn-65 <3.00E+01 Zr-95 <1.50E+01 Nb-95 <1.50E+01 1-131 <1.50E+01 Cs-1 34 <1.50E+01 Cs-1 37 <1.80E+01 BaLa-140 <1.50E+01 K-40 2.10E+02 TI-208 3.61 E+00 Pb-212 7.88E+00 Bi-214 3.23E+01 Pb-214 3.68E+01 Ra-226 1.81E+02 Th-234 2.08E+02 Sigma Error (1) LLD 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 3.00E+01 0.00E+00 1.50E+01 0.00E+00 3.00E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.80E+01 0.00E+00 1.50E+01 4.67E+01 2.84E+00 3.18E+00 8.08E+00 8.01 E+00 6.83E+01 1.06E+02 Sample ID: 177835 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD H3GW 2.27E+02 1.27E+02 2.06E+02 Sample ID: 268443 Sample Dates: 5/14/2013

-5114/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <3.29E+00 0.00E+00 3.29E+00 Co-58 <3.47E+00 0.00E+00 3.47E+00 Fe-59 <8.27E+00 0.00E+00 8.27E+00 Co-60 <4.68E+00 0.00E+00 4.68E+00 Zn-65 <6.38E+00 0.00E+00 6.38E+00 Zr-95 <7.18E+00 0.00E+00 7.18E+00 Nb-95 <4.27E+00 0.00E+00 4.27E+00 1-131 <1.31E+01 0.00E+00 1.31E+01 Cs-1 34 <3.23E+00 0.00E+00 3.23E+00 Cs-1 37 <3.50E+00 0.00E+00 3.50E+00 BaLa-140 <8.00E+00 0.00E+00 8.00E+00 Be-7 <3.28E+01 0.00E+00 3.28E+01 K-40 1.31E+02 2.07E+01 3.09E+01 H3GW <1.09E+02 0.00E+00 1.90E+02 Sample ID: 271732 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.16E+00 0.00E+00 2.16E+00 Co-58 <3.11E+00 0.00E+00 3.11E+00 Fe-59 <8.52E+00 0.00E+00 8.52E+00 Co-60 <2.84E+00 0.00E+00 2.84E+00 Zn-65 <5.20E+00 0.00E+00 5.20E+00 Zr-95 <5.38E+00 0.00E+00 5.38E+00 Nb-95 <5.02E+00 0.00E+00 5.02E+00 1-131 <8.85E+01 0.00E+00 8.85E+01 Cs-1 34 <1.92E+00 0.00E+00 1.92E+00 Cs-1 37 <2.37E+00 0.00E+00 2.37E+00 BaLa-140 <2.82E+01 0.00E+00 2.82E+01 Be-7 <2.99E+01 0.00E+00 2.99E+01 K-40 1.32E+02 1.69E+01 1.85E+01 H3GW <-5.9E+01 0.00E+00 1.93E+02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E D .EnRad Laboratories En -13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 84 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 76 [ INDICATOR

-N @ 0.49 miles ]Sample ID: 277257 Sample Dates: 11/13/2013

-11/13/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <8.01E+00 0.00E+00 8.01E+00 Co-58 <6.17E+00 0.OOE+00 6.17E+00 Fe-59 <1.62E+01 0.OOE+00 1.62E+01 Co-60 <6.26E+00 0.00E+00 6.26E+00 Zn-65 <1.40E+01 0.00E+00 1.40E+01 Zr-95 <1.21E+01 0.OOE+00 1.21E+01 Nb-95 <8.84E+00 0.00E+00 8.84E+00 1-131 <1.12E+01 0.00E+00 1.12E+01 Cs-134 <6.33E+00 0.OOE+00 6.33E+00 Cs-137 <7.99E+00 0.OOE+00 7.99E+00 BaLa-140 <1.17E+01 0.OOE+00 1.17E+01 Be-7 <6.40E+01 0.OOE+00 6.40E+01 K-40 <1.23E+02 0.OOE+00 1.23E+02 H3GW <3.55E+01 0.OOE+00 1.45E+02 Sample Point 77 [INDICATOR

-SSE @ 0.25 miles]Sample ID: 177795 Sample Dates: 2/1112013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.OOE+00 1.50E+01 Fe-59 <3.OOE+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 O.OOE+00 1.50E+01 Zn-65 <3.00E+01 0.OOE+00 3.00E+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.OOE+00 1.50E+01 1-131 <1.50E+01 0.OOE+00 1.50E+01 Cs-1 34 <1.50E+01 0.00E+00 1.50E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 5.83E+02 7.90E+01 TI-208 3.20E+01 5.51 E+00 Bi-212 6.15E+01 3.26E+01 Pb-212 1.02E+02 9.23E+00 Bi-214 5.74E+01 9.53E+00 Pb-214 4.64E+01 1.00E+01 Ra-226 2.04E+02 9.75E+01 Ac-228 2.42E+01 1.34E+01 Sample ID: 177836 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD H3GW 4.18E+02 1.28E+02 2.05E+02 Sample ID: 258444 Sample Dates: 5/15/2013

-5/15/2013

.Nuclide Activity Sigma Error (1) LLD Mn-54 <3.81E+00 0.00E+00 3.81E+00 Co-58 <4.22E+00 0.00E+00 4.22E+00 Fe-59 <8.26E+00 0.00E+00 8.26E+00 Co-60 <5.00E+00 0.00E+00 5.00E+00 Zn-65 <8.54E+00 0.00E+00 8.54E+00 Zr-95 <7.83E+00 0.00E+00 7.83E+00 Nb-95 <5.00E+00 0.00E+00 5.00E+00 1-131 <1.18E+01 0.00E+00 1.18E+01 Cs-134 <3.86E+00 0.00E+00 3.86E+00 Cs-137 <4.51E+00 0.00E+00 4.51E+00 BaLa-140 <8.36E+00 0.00E+00 8.36E+00 Be-7 <3.48E+01 0.00E+00 3.48E+01 K-40 3.66E+02 3.62E+01 3.96E+01 H3GW <1.32E+02 0.00E+00 1.80E+02 Sample ID: 271731 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.35E+00 0.00E+00 2.35E+00 Co-58 <3.32E+00 0.00E+00 3.32E+00 Fe-59 <7.97E+00 0.00E+00 7.97E+00 Co-60 <2.81 E+00 0.00E+00 2.81E+00 Zn-65 <5.10E+00 0.00E+00 5.10E+00 Zr-95 <6.75E+00 0.00E+00 6.75E+00 Nb-95 <5.56E+00 0.00E+00 5.56E+00 1-131 <1.25E+02 0.00E+00 1.25E+02 Cs-134 <2.24E+00 0.00E+00 2.24E+00 Cs-137 <2.40E+00 0.00E+00 2.40E+00 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 85 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road.Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 77 [ INDICATOR

-SSE @ 0.25 miles ]Sample ID: 271731 Sample Dates: 8/14/2013

-8114/2013 Nuclide Activity Sigma Error (1) LLD BaLa-140 <3.01E+01 0.OOE+00 3.01E+01 Be-7 <3.02E+01 0.OOE+00 3.02E+01 K-40 1.06E+02 1.37E+01 2.26E+01 H3GW <8.55E+01 0.OOE+00 1.92E+02 Sample ID: 277259 Sample Dates: 11/13/2013

-11/13/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <6.39E+00 0.OOE+00 6.39E+00 Co-58 <6.65E+00 0.00E+00 6.65E+00 Fe-59 <1.75E+01 0.OOE+00 1.75E+01 Co-60 <9.09E+00 0.OOE+00 9.09E+00 Zn-65 <1.45E+01 0.OOE+00 1.45E+01 Zr-95 <1.33E+01 0.OOE+00 1.33E+01 Nb-95 <6.78E+00 0.OOE+00 6.78E+00 1-131 <1.07E+01 0.OOE+00 1.07E+01 Cs-134 <6.18E+00 0.OOE+00 6.18E+00 Cs-137 <8.18E+00 0.OOE+00 8.18E+00 BaLa-140 <8.40E+00 0.OOE+00 8.40E+00 Be-7 <5.67E+01 0.OOE+00 5.67E+01 K-40 2.28E+02 3.61E+01 4.28E+01 H3GW <7.19E+01 0.OOE+00 2.18E+02 Sample Point 78 [INDICATOR

-SSE @ 0.17 miles]Sample ID: 177796 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Mn-54 <1.50E+01 Co-58 <1.50E+01 Fe-59 <3.00E+01 C0-60 <1.50E+01 Zn-65 <3.00E+01 Zr-95 <1.50E+01 Nb-95 <1.50E+01 1-131 <1.50E+01 Cs-1 34 <1.50E+01 Cs-1 37 <1.80E+01 BaLa-140 <1.50E+01 K-40 2.06E+02 TI-208 1.79E+01 Pb-212 4.93E+01 Bi-214 2.77E+01 Pb-214 3.18E+01 Ra-226 2.82E+02 Ac-228 6.25E+01 Th-234 2.59E+02 Sample ID: 177837 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity H3GW 4.60E+02 Sigma Error (1) LLD 0.OOE+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 3.00E+01 0.OOE+00 1.50E+01 0.00E+00 3.00E+01 0.OOE+00 1.50E+01 0.OOE+00 1.50E+01 0.OOE+00 1.50E+01 0.OOE+00 1.50E+01 0.OOE+00 1.80E+01 0.00E+00 1.50E+01 4.97E+01 4.12E+00 7.80E+00 8.38E+00 8.55E+00 7.58E+01 1.55E+01 1.14E+02 Sigma Error (1) LLD 1.28E+02 2.05E+02 Sample ID: 258445 Sample Dates: 5/15/2013

-5/15/2013 Nuclide Activity Mn-54 <4.72E+00 Co-58 <4.02E+00 Fe-59 <1.04E+01 Co-60 <5.02E+00 Zn-65 <9.96E+00 Zr-95 <9.12E+00 Nb-95 <4.93E+00 1-131 <1.42E+01 Cs-134 <4.31E+00 Cs-1 37 <4.60E+00 BaLa-140 <9.01 E+00 Be-7 <4.16E+01 K-40 3.76E+02 H3GW <1.59E+02 Sample ID: 271726 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Mn-54 <2.60E+00 Co-58 <3.74E+00 Fe-59 <9.34E+00 Co-60 <2.54E+00 Sigma Error (1) LLD 0.OOE+00 4.72E+00 0.OOE+00 4.02E+00 0.OOE+00 1.04E+01 0.00E+00 5.02E+00 0.OOE+00 9.96E+00 0.OOE+00 9.12E+00 0.00E+00 4.93E+00 0.OOE+00 1.42E+01 0.OOE+00 4.31E+00 0.00E+00 4.60E+00 0.00E+00 9.01E+00 0.00E+00 4.16E+01 3.56E+01 4.44E+01 0.00E+00 1.82E+02 Sigma Error (1) LLD 0.00E+00 2.60E+00 0.00E+00 3.74E+00 0.00E+00 9.34E+00 0.00E+00 2.54E+00 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories 13339 Hagers Ferry Road-0 Huntersville, North Carolina 28078 Appendix E -Page 86 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 78 [ INDICATOR

-SSE @ 0.17 miles ]Sample ID: 271726 Sample Dates: 8114/2013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Zn-65 <6.07E+00 O.OOE+00 6.07E+00 Zr-95 <6.56E+00 0.00E+00 6.56E+00 Nb-95 <6.88E+00 0.00E+00 6.88E+00 1-131 <1.49E+02 0.00E+00 1.49E+02 Cs-134 <2.42E+00 0.OOE+00 2.42E+00 Cs-137 <2.63E+00 0.00E+00 2.63E+00 BaLa-140 <3.77E+01 0.OOE+00 3.77E+01 Be-7 <3.58E+01 0.OOE+00 3.58E+01 K-40 1.80E+02 2.02E+01 2.41E+01 H3GW 1.95E+02 5.94E+01 1.85E+02 Sample ID: 277260 Sample Dates: 11/13/2013

-11113/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <7.88E+00 0.OOE+00 7.88E+00 Co-58 <5.78E+00 0.00E+00 5.78E+00 Fe-59 <1.57E+01 O.OOE+00 1.57E+01 Co-60 <8.24E+00 0.OOE+00 8.24E+00 Zn-65 <1.55E+01 O.OOE+00 1.55E+01 Zr-95 <1.26E+01 0.00E+00 1.26E+01 Nb-95 <8.04E+00 0.OOE+00 8.04E+00 1-131 <1.08E+01 0.00E+00 1.08E+01 Cs-1 34 <6.07E+00 0.OOE+00 6.07E+00 Cs-1 37 <7.07E+00 0.OOE+00 7.07E+00 BaLa-140 <9.53E+00 0.00E+00 9.53E+00 Be-7 <5.90E+01 0.00E+00 5.90E+01 K-40 2.89E+02 5.78E+01 8.29E+01 H3GW 2.69E+02 7.04E+01 2.16E+02 Sample Point 79 [INDICATOR

-N @ 1 miles]Sample ID: 177797 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.OOE+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.00E+01 0.00E+00 3.00E+01 Zr-95 <1.50E+01 0.00E+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-1 34 <1.50E+01 0.00E+00 1.50E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 4.47E+02 6.79E+01 TI-208 8.24E+00 3.23E+00 Pb-212 2.04E+01 5.66E+00 Bi-214 2.63E+01 7.48E+00 Pb-214 2.04E+01 8.02E+00 Ra-226 1.48E+02 7.45E+01 Ac-228 2.44E+01 1.16E+01 Th-234 2.48E+02 1.22E+02 Sample ID: 177838 Sample Dates: 2112/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD H3GW 1.69E+03 1.39E+02 2.05E+02 Sample ID: 258441 Sample Dates: 6/14/2013

-5/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.94E+00 0.00E+00 2.94E+00 Co-58 <3. 1E+00 0.00E+00 3.10E+00 Fe-59 <6.29E+00 0.00E+00 6.29E+00 Co-60 <3.41E+00 0.00E+00 3.41 E+00 Zn-65 <5.82E+00 0.00E+00 5.82E+00 Zr-95 <5.04E+00 0.00E+00 5.042+00 Nb-95 <3.63E+00 0.00E+00 3.63E+00 1-131 <1.16E+01 0.00E+00 1.16E+01 Cs-134 <2.79E+00 0.00E+00 2.79E+00 Cs-137 <3.13E+00 0.00E+00 3.13E+00 BaLa-140 <7.47E+00 0.00E+00 7.47E+00 Be-7 <2.49E+01 0.00E+00 2.49E+01 K-40 3.68E+02 2.35E+01 2.54E+01 H3GW 1.31E+03 7.46E+01 1.80E+02 (1) Analysis results generated by Hanis Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -.EnRad Laboratories Appendix E -Page 87 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 79 [ INDICATOR

-N @ 1 miles ]Sample ID: 271728 Sample Dates: 8/14/2013

-8/14/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.82E+00 O.OOE+00 2.82E+00 Co-58 <3.79E+00 O.OOE+00 3.79E+00 Fe-59 <1.22E+01 O.OOE+00 1.22E+01 Co-60 <2.91E+00 0.00E+00 2.91E+00 Zn-65 <6.70E+00 O.OOE+00 6.70E+00 Zr-95 <8.13E+00 O.OOE+00 8.13E+00 Nb-95 <8.20E+00 O.OOE+00 8.20E+00 1-131 <2.53E+02 O.OOE+00 2.53E+02 Cs-134 <2.74E+00 O.OOE+00 2.74E+00 Cs-137 <2.88E+00 O.OOE+00 2.88E+00 BaLa-140 <5.55E+01 O.OOE+00 5.55E+01 Be-7 <3.90E+01 0.OOE+00 3.90E+01 K-40 1.73E+02 1.99E+01 2.64E+01 H3GW 1.29E+03 7.57E+01 1.86E+02 Sample ID: 277261 Sample Dates: 11/12/2013

-11112/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <7.39E+00 O.OOE+00 7.39E+00 Co-58 <8.31 E+00 O.OOE+00 8.31E+00 Fe-59 <1.53E+01 O.OOE+O0 1.53E+01 Co-60 <6.90E+00 O.OOE+00 6.90E+00 Zn-65 <1.68E+01 O.OOE+00 1.68E+01 Zr-95 <1.40E+01 0.OOE+00 1.40E+01 Nb-95 <6.25E+00 O.OOE+00 6.25E+00 1-131 <1.35E+01 O.OOE+00 1.35E+01 Cs-1 34 <7.23E+00 0.OOE+00 7.23E+00 Cs-137 <4.94E+00 O.OOE+00 4.94E+00 BaLa-140 <1.19E+01 O.OOE+00 1.19E+01 Be-7 <6.44E+01 0.00E+00 6.44E+01 K-40 3.78E+02 5.22E+01 6.84E+01 H3GW 1.54E+03 8.87E+01 2.14E+02 Sample Point 81 [INDICATOR

-SSE @ 0.19 miles]Sample ID: 177798 Sample Dates: 2/11/2013

-2/11/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 O.OOE+00 1.50E+01 Fe-59 <3.OOE+01 O.OOE+00 3.OOE+01 Co-60 <1.50E+01 O.OOE+00 1.50E+01 Zn-65 <3.OOE+01 O.OOE+00 3.OOE+01 Zr-95 <1.50E+01 O.OOE+00 1.50E+01 Nb-95 <1.50E+01 O.OOE+00 1.50E+01 1-131 <1.50E+01 O.OOE+00 1.50E+01 Cs-134 <1.50E+01 O.OOE+00 1.50E+01 Cs-1 37 <1.80E+01 O.OOE+00 1.80E+01 BaLa-140 <1.50E+01 O.OOE+00 1.50E+01 K-40 4.62E+02 7.03E+01 Pb-212 1.30E+01 8.07E+00 Bi-214 1.28E+02 1.49E+01 Pb-214 1.12E+02 1.27E+01 Ra-226 1.69E+02 8.56E+01 Th-234 1.54E+02 1.24E+02 Sample ID: 177839 Sample Dates: 2/11/2013

-2111/2013 Nuclide Activity Sigma Error (1) LLD H3GW 6.13E+02 1.30E+02 2.05E+02 Sample ID: 258440 Sample Dates: 5/15/2013-5/15/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <4.70E+00 O.OOE+00 4.70E+00 Co-58 <5.56E+00 O.OOE+00 5.56E+00 Fe-59 <1.25E+01 0.00E+00 1.25E+01 Co-60 <8.01E+00 O.OOE+00 8.01E+00 Zn-65 <1.01E+01 0.00E+00 1.01E+01 Zr-95 <8.65E+00 O.OOE+00 8.65E+00 Nb-95 <6.08E+00 O.OOE+00 6.08E+00 1-131 <1.45E+01 O.OOE+00 1.45E+01 Cs-1 34 <4.89E+00 0.00E+00 4.89E+00 Cs-1 37 <5.45E+00 O.OOE+00 5.45E+00 BaLa-140 <1.20E+01 O.OOE+00 1.20E+01 Be-7 <3.98E+01 O.OOE+00 3.98E+01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 88 of 120 Duke Energy Annual Report -Appendix E 'n ) 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pC/I Sample Point 81 [ INDICATOR

-SSE @ 0.19 miles ]Sample ID: 258440 Sample ID: 271725 Sample ID: 277262 Sample Dates: 5/15/2013-5/15/2013 Nuclide Activity Sigma Error (1) LLD K-40 1.24E+02 2.79E+01 5.36E+01 H3GW 1.92E+02 5.85E+01 1.82E+02 Sample Dates: 8/14/2013

-811412013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.20E+00 0.00E+00 2.20E+00 Co-58 <2.98E+00 0.00E+00 2.98E+00 Fe-59 <8.89E+00 0.00E+00 8.89E+00 Co-60 <2.90E+00 0.00E+00 2.90E+00 Zn-65 <4.85E+00 0.00E+00 4.85E+00 Zr-95 <5.63E+00 0.OOE+00 5.63E+00 Nb-95 <5.61 E+00 O.OOE+00 5.61E+00 1-131 <1.29E+02 0.OOE+00 1.29E+02 Cs-1 34 <2.07E+00 O.OOE+00 2.07E+00 Cs-1 37 <2.35E+00 O.OOE+00 2.35E+00 BaLa-140 <3.34E+01 0.00E+00 3.34E+01 Be-7 <2.98E+01 0.OOE+00 2.98E+01 K-40 1.OOE+02 1.60E+01 2.50E+01 H3GW 1.06E+03 7.24E+01 1.85E+02 Sample Dates: 11/13/2013-11/13/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <6.67E+00 0.00E+00 6.67E+00 Co-58 <7.15E+00 0.00E+00 7.15E+00 Fe-59 <1.31 E+01 0.00E+00 1.31 E+01 Co-60 <9.16E+00 0.00E+00 9.16E+00 Zn-65 <1.65E+01 0.00+E00 1.65E+01 Zr-95 <1.36E+01 0.00E+00 1.36E+01 Nb-95 <9.33E+00

.000E+00 9.33E+00 1-131 <1.20E+01 0.OOE+00 1.20E+01 Cs-1 34 <7.59E+00

.000E+00 7.59E+00 Cs-1 37 <7.92E+00 0.OOE+00 7.92E+00 BaLa-140 <1.39E+01 0.OOE+00 1.39E+01 Be-7 <5.90E+01 0.00E+00 5.90E+01 K-40 3.68E+02 5.01E+01 7.76E+01 H3GW 6.12E+02 7.57E+01 2.15E+02 Sample Point 82 [ INDICATOR

-SSE @ 0.3 miles]I Sample ID: 177745 Sample Dates: 2/12/2013

-2/12/2013 Sample ID: 177791 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error (1) LLD LLI-131 <3.09E-01 0.OOE+00 3.09E-01 Nuclide Activity Sigma Error (1) LLD Beta 3.04E+00 6.70E-01 6.26E-01 Sample ID: 177799 Sample Dates: 2/12/2013

-2/12/2013 Nuclide Activity Sigma Error Mn-54 <1.50E+01 0.00E+00 Co-58 <1.50E+01 0.00E+00 Fe-59 <3.00E+01 0.00E+00 Co-60 <1.50E+01 0.00E+00 Zn-65 <3.00E+01 0.00E+00 Zr-95 <1.50E+01 0.OOE+00 Nb-95 <1.50E+01 0.00E+00 1-131 <1.50E+01 0.00E+00 Cs-1 34 <1.50E+01 0.002+00 Cs-137 <1.80E+01 0.00E+00 BaLa-140 <1.50E+01 0.00E+00 K-40 5.45E+02 7.45E+01 Bi-214 2.42E+01 7.45E+00 Sample ID: 177840 Sample Dates: 2/12/2013

-211212013 Nuclide Activity Sigma Error H3GW <2.05E+02 0.00E+00 (1) LLD 1.50E+01 1.50E+01 3.00E+01 1.50E+01 3.OOE+01 1.50E+01 1.50E+01 1.50E+01 1.50E+01 1 .80E+01 1.50E+01 (1) LLD 2.05E+02 Sample ID: 258439 Sample Dates: 5/15/2013

-5115/2013 Nuclide Activity Beta 1.39E+00 Mn-54 <4.62E+00 Co-58 <4.80E+00 Fe-59 <1.10E+01 Co-60 <6.32E+00 Zn-65 <8.01E+00 Zr-95 <7.50E+00 Sigma Error(1)3.77E-01 0.00E+00 0.00E+00.00OE+00 0.OOE+00 0.00E+00 0.OOE+00 LLD 1.17E+00 4.62E+00 4.80E+00 1.10E+01 6.32E+00 8.01 E+00 7.50E+00 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[1 3339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 89 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: GROUND WATER Concentration (Activity):

pCII Sample Point 82 [ INDICATOR

-SSE @ 0.3 miles ]Sample ID: 258439 Sample Dates: 511512013

-511512013 Nuclide Activity Sigma Error (1) LLD Nb-95 <5.84E+00 O.OOE+00 5.84E+00 1-131 <1.38E+01 O.OOE+00 1.38E+01 Cs-1 34 <3.96E+00 0.OOE+00 3.96E+00 Cs-1 37 <5.77E+00 O.OOE+00 5.77E+00 BaLa-140 <1.28E+01 O.OOE+00 1.28E+01 Be-7 <3.73E+01 0.OOE+00 3.73E+01 K-40 1.39E+02 3.10E+01 4.55E+01 Be-7 <2.43E+00 O.OOE+00 2.43E+00 K-40 1.93E+01 2.39E+00 2.94E+00 LLI-131 <5.27E-01 O.OOE+00 5.27E-01 H3GW <-5.4E+01 0.OOE+00 1.81E+02 Sample ID: 271722 Sample Dates: 8/15/2013

-8/15/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.29E+00 3.74E-01 1.17E+00 Mn-54 <2.19E+00 0.OOE+00 2.19E+00 Co-58 <3.25E+00 O.00E+00 3.25E+00 Fe-59 <7.94E+00 0.OOE+00 7.94E+00 Co-60 <2.42E+00 0.OOE+00 2.42E+00 Zn-65 <4.64E+00 0.OOE+00 4.64E+00 Zr-95 <5.41 E+00 0.OOE+00 5.41E+00 Nb-95 <4.98E+00 0.00E+00 4.98E+00 1-131 <1.19E+02 0.OOE+00 1.19E+02 Cs-1 34 <2.02E+00 0.OOE+00 2.02E+00 Cs-1 37 <2.06E+00 0.OOE+00 2.06E+00 BaLa-140 <3.23E+01 0.OOE+00 3.23E+01 Be-7 <2.79E+01 0.OOE+00 2.79E+01 K-40 8.92E+01 1.26E+01 1.93E+01 Be-7 <4.49E+00 O.OOE+00 4.49E+00 K-40 4.95E+01 3.41 E+00 3.37E+00 LLI-131 <1.20E+01 0.00E+00 1.20E+01 H3GW <-7.1E+00 0.OOE+00 1.85E+02 Sample ID: 277265 Sample Dates: 1111412013

-11114/2013 Nuclide Activity Sigma Error (1) LLD Beta 1.52E+00 3.78E-01 1.16E+00 Mn-54 <7.55E+00 0.OOE+00 7.55E+00 Co-58 <6.96E+00 0.OOE+0O 6.96E+00 Fe-59 <1.25E+01 O.OOE+00 1.25E+01 Co-60 <1.25E+01 0.00E+00 1.25E+01 Zn-65 <1.85E+01 0.OOE+00 1.85E+01 Zr-95 <1.39E+01 0.OOE+00 1.39E+01 Nb-95 <8.83E+00 0.OOE+00 8.83E+00 1-131 <1.27E+01 0.00E+00 1.27E+01 Cs-1 34 <7.04E+00 0.OOE+00 7.04E+00 Cs-137 <9.71E+00 0.00E+00 9.71E+00 BaLa-140 <1.33E+01 O.OOE+00 1.33E+01 Be-7 <7.30E+01 0.OOE+00 7.30E+01 K-40 2.70E+02 6.84E+01 1.16E+02 Be-7 <3.01E+00 O.0OE+00 3.01E+00 K-40 3.69E+01 3.09E+00 4.65E+00 LLI-131 <5.75E-01 0.OOE+00 5.75E-01 H3GW <-1.7E+01 0.OOE+00 2.16E+02 Media Type: SEDIMENTBOTTOM Concentration (Activity):

pCi/kg Sample Point 41 [ CONTROL -NNW @ 7.2 miles ]Sample ID: 259472 Sample Dates: 513012013

-513012013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.85E+01 O.OOE+O0 1.85E+01 Co-58 <2.14E+01 O.OOE+00 2.14E+01 Fe-59 <4.13E+01 O.OOE+00 4.13E+01 Co-60 <2.30E+01 0.OOE+00 2.30E+01 Zn-65 <4.20E+01 0.OOE+00 4.20E+01 Zr-95 <4.52E+01 O.OOE+00 4.52E+01 Nb-95 <2.73E+01 O.OOE+00 2.73E+01 1-131 <5.27E+01 0.OOE+00 5.27E+01 Cs-134 <1.91E+01 O.OOE+00 1.91E+01 Cs-137 1.69E+02 1.18E+01 2.04E+01 Be-7 <2.10E+02 0.00E+00 2.10E÷02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Appendix E -Page 90 of 120 Duke Energy Annual Report -Appendix E " 13339 Hagers Ferry Road S-D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SEDIMENTBOTTOM Concentration (Activity):

pCi/kg Sample Point 41 [ CONTROL -NNW @ 7.2 miles ]Sample ID: 259472 Sample Dates: 513012013

-5/30/2013 Nuclide Activity Sigma Error (1) LLD K-40 3.23E+03 1.74E+02 2.02E+02 Co-57 <1.53E+01 0.00E+00 1.53E+01 Mo-99 <3.27E+03 0.00E+00 3.27E+03 Ag-110M <1.97E+01 0.00E+00 1.97E+01 Sb-122 <6.16E+02 0.00E+00 6.16E+02 Sb-1 25 <5.52E+01 O.00E+00 5.52E+01 Sample Point 45 [ INDICATOR

-@ 0 miles]Sample ID: 259470 Sample Dates: 5/30/2013-5/30/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.08E+01 0.00E+00 1.08E+01 Co-58 <1.18E+01 0.00E+00 1.18E+01 Fe-59 <1.92E+01 0.00E+00 1.92E+01 Co-60 <1.40E+01 0.00E+00 1.40E+01 Zn-65 <2.01E+01 0.00E+00 2.01E+01 Zr-95 <2.29E+01 0.OOE+00 2.29E+01 Nb-95 <1.36E+01 0.00E+00 1.361+01 1-131 <2.27E+01 0.00E+00 2.27E+01 Cs-134 <9.97E+00 0.00E+00 9.97E+00 Cs-1 37 <1.22E+01 0.00E+00 1.22E+01 Be-7 <1.21E+02 0.00E+00 1.21E+02 K-40 5.35E+02 6.18E+01 9.28E+01 Co-57 <9.07E+00 0.OOE+00 9.07E+00 Mo-99 <1.19E+03 0.00E+00 1.19E+03 Ag-110M <1.20E+01 0.00E+00 1.20E+01 Sb-122 <2.61E+02 0.00E+00 2.61E+02 Sb-125 <2.94E+01 0.00E+00 2.94E+01 Sample Point 46 [INDICATOR

-@ 0 miles]Sample ID: 259471 Sample Dates: 5/31/2013

-5/31/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <5.37E+01 0.00E+00 5.37E+01 Co-58 <4.46E+01 O.OOE+00 4.46E+01 Fe-59 <8.18E+01 0.00E+00 8.18E+01 Co-60 <7.37E+01 0.00E+00 7.37E+01 Zn-65 <9.63E+01 0.00E+00 9.63E+01 Zr-95 <8.18E+01 0.00E+00 8.18E+01 Nb-95 <5.03E+01 0.OOE+00 5.03E+01 1-131 <9.33E+01 0.00E+00 9.33E+01 Cs-134 <3.72E+01 0.00E+00 3.72E+01 Cs-1 37 3.68E+02 3.36E+01 4.65E+01 Be-7 <3.64E+02 0.00E+00 3.64E+02 K-40 3.09E+03 3.11E+02 4.19E+02 Co-57 <2.43E+01 0.00E+00 2.43E+01 Mo-99 <4.39E+03 0.OOE+00 4.39E+03 Ag-11OM <4.22E+01 0.00E+00 4.22E+01 Sb-122 <7.61 E+02 0.00E+00 7.61 E+02 Sb-125 <1.18E+02 0.00E+00 1.18E+02 Sample Point 66 [INDICATOR

-@ 0 miles]Sample ID: 259473 Sample Dates: 513112013

-5/3112013 Nuclide Activity Sigma Error (1) LLD Mn-54 <3.81E+01 0.00E+00 3.81E+01 Co-58 <3.01E+01 O.OOE+00 3.01E+01 Fe-59 <7.74E+01 0.OOE+00 7.74E+01 Co-60 <2.75E+01 0.OOE+00 2.75E+01 Zn-65 <6.78E+01 0.OOE+00 6.78E+01 Zr-95 <7.44E+01 0.00E+00 7.44E+01 Nb-95 <4.01E+01 0.OOE+00 4.01E+01 1-131 <8.20E+01 0.00E+00 8.20E+01 Cs-134 <3.17E+01 0.OOE+00 3.17E+01 Cs-137 <4.15E+01 0.00E+00 4.15E+01 Be-7 2.64E+02 1.39E+02 2.78E+02 K-40 1.91E+03 2.35E+02 2.59E+02 Co-57 <2.64E+01 0.O0E+00 2.64E+01 Mo-99 <6.10E+03 0.00E+00 6.10E+03 Ag-110M <2.92E+01 0.00E+00 2.92E+01 Sb-122 <1.11E+03 0.00E+00 1.11E+03 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 91 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road--Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SEDIMENTBOTTOM Concentration (Activity):

pCi/kg Sample Point 66 [ INDICATOR

-@ 0 miles ]Sample ID: 259473 Sample Dates: 5/3112013

-5/31/2013 Nuclide Activity Sigma Error (1) LLD Sb-125 <9.88E+01 0.00E+00 9.88E+01 Media Type: SEDIMENTSHORE Concentration (Activity):

pCi/kg Sample Point 44 [ INDICATOR

-NNE @ 1.6 miles ]Sample ID: 177824 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Cs-134 Cs-137 TI-208 Pb-212 Bi-214 Pb-214 Ac-228 Sample ID: 267542 Sample Dates: 8/20/2013

-8/20/2013 Nuclide Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1-131 Cs-1 34 Cs-137 Be-7 K-40 Co-57 Mo-99 Ag-110M Sb-122 Sb-1 25 Sample Point 57 [INDICATOR

-@ 0 miles]<11.50E+02

<1.80E+02 3.88E+01 1.04E+02 1.31E+02 1.68E+02 9.74E+01 Activity Sigma Error (1)0.00E+00 0.00E+00 1.75E+01 3.78E+01 4.19E+01 4.31 E+01 4.76E+01 Sigma Error (1)LLD 1.50E+02 1.80E+02 LLD<8.26E+00 0.OOE+00 8.26E+00<8.01E+00 0.00E+00 8.01E+00<1.72E+01 0.OOE+00 1.72E+01<1.19E+01 0.OOE+00 1.19E+01<2.01E+01 0.OOE+00 2.01E+01<1.62E+01 0.00E+00 1.62E+01<8.51E+00 0.OOE+00 8.51 E+00<1.29E+01 0.OOE+00 1.29E+01<8.24E+00 0.OOE+00 8.24E+00<9.19E+00 0.OOE+00 9.19E+00 1.15E+02 3.83E+01 6.63E+01 1.98E+02 5.93E+01 9.91E+01<7.37E+00 0.00E+00 7.37E+00<2.85E+02 0.00E+00 2.85E+02<6.56E+00 0.00E+00 6.56E+00<5.34E+01 0.00E+00 5.34E+01<2.36E+01 0.00E+00 2.36E+01 Sample ID: 177825 Sample Dates: 2118/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Cs-134 <1.50E+02 0.OOE+00 1.50E+02 Cs-137 <1.80E+02 0.00E+00 1.80E+02 K-40 1.40E+04 1.53E+03 TI-208 4.10E+02 7.32E+01 Bi-212 1.19E+03 4.302+02 Pb-212 1.52E+03 3.30E+02 Bi-214 1.40E+03 1.83E+02 Pb-214 1.61E+03 1.79E+02 Ra-226 3.35E+03 1.19E+03 Ac-228 1.44E+03 2.58E+02 Sample ID: 267643 Sample Dates: 8/20/2013

-8/2012013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.03E+01 0.00E+00 2.03E+01 Co-58 <1.62E+01 0.OOE+00 1.62E+01 Fe-59 <4.14E+01 0.00E+00 4.14E+01 Co-60 <1.89E+01 0.00E+00 1.89E+01 Zn-65 <4.61E+01 0.00E+00 4.61E+01 Zr-95 <3.54E+01 0.00E+00 3.54E+01 Nb-95 <2.24E+01 0.00E+00 2.24E+01 1-131 <2.51E+01 0.00E+00 2.51E+01 Cs-1 34 <1.57E+01 0.00E+00 1.57E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 Be-7 <1.45E+02 0.00E+00 1.45E+02 K-40 1.20E+04 3.17E+02 1.87E+02 Co-57 <1.32E+01 0.00E+00 1.32E+01 Mo-99 <5.75E+02 0.00E+00 5.75E+02 Ag-110M <1.62E+01 0.00E+00 1.62E+01 Sb-122 <1.05E+02 0.00E+00 1.05E+02 Sb-125 <4.47E+01 0.00E+00 4.47E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 92 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 40 [ INDICATOR

-ESE @ 0.6 miles ]Sample ID: 177721 Sample Dates: 1/2112013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.OOE+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.OOE+01 0.00E+00 3.OOE+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.002+00 1.50E+01 1-131 <1.50E+01 0.OOE+00 1.50E+01 Cs-134 <1.50E+01 0.OOE+00 1.50E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 O.OOE+00 1.50E+01 K-40 2.61E+02 2.78E+01 TI-208 2.42E+00 1.36E+00 Pb-212 6.56E+00 2.52E+00 Bi-214 1.74E+01 3.24E+00 Pb-214 1.35E+01 3.21E+00 Ra-226 1.50E+02 3.16E+01 Ac-228 8.27E+00 5.53E+00 Th-234 2.18E+02 4.82E+01 Sample ID: 177787 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD H3SW 1.12E+03 1.34E+02 2.05E+02 Sample ID: 177909 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.O0E+00 3.OOE+01 Co-60 <1.50E+01 0.OOE+00 1.50E+01 Zn-65 <3.00E+01 0.00E+00 3.00E+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <1.50E+01 0.OOE+00 1.50E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 2.61 E+02 2.71E+01 TI-208 2.81 E+00 1.66E+00 Pb-212 8.30E+00 1.32E+00 Bi-214 1.47E+01 3.11E+00 Pb-214 1.87E+01 3.25E+00 Ra-226 2.03E+02 3.23E+01 Ac-228 8.07E+00 4.00E+00 Th-234 1.90E+02 5.10E+01 Sample ID: 177922 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD H3SW 8.48E+02 1.32E+02 2.06E+02 Sample ID: 178040 Sample Dates: 3/1812013

-311812013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.00E+01 0.00E+00 3.00E+01 Zr-95 <1.50E+01 0.00E+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-1 34 <1.50E+01 0.00E+00 1.50E+01 Cs-1 37 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 2.27E+02 2.60E+01 TI-208 2.56E+00 1.31E+00 Pb-212 4.63E+00 2.18E+00 Bi-214 1.65E+01 3.30E+00 Pb-214 1.35E+01 3.19E+00 Ra-226 1.69E+02 3.11E+01 Th-234 1.72E+02 4.72E+01 (1) Analysis results generated by Haris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[fl 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 93 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 40 [ INDICATOR

-ESE @ 0.6 miles ]Sample ID: 178103 Sample Dates: 3118/2013

-311812013 Nuclide Activity Sigma Error (1) LLD H3SW 7.30E+02 1.31E+02 2.05E+02 Sample ID: 258036 Sample Dates: 413/2013 -1612013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.70E+00 Co-58 <1.85E+00 Fe-59 <4.03E+00 Co-60 <1.69E+00 Zn-65 <3.49E+00 Zr-95 <3.42E+00 Nb-95 <2.35E+00 1-131 <1.40E+01 Cs-1 34 <1.54E+00 Cs-137 <1.74E+00 BaLa-140 <6.10E+00 Be-7 <1.86E+01 K-40 1.45E+02 H3SW 7.77E+02 Sample ID: 259648 Sample Dates: 5/612013 -6/3/2013 Nuclide Activity Mn-54 <2.26E+00 Co-58 <2.66E+00 Fe-59 <6.25E+00 Co-60 <2.63E+00 Zn-65 <4.41E+00 Zr-95 <4.82E+00 Nb-95 <3.44E+00 1-131 <1.34E+01 Cs-134 <2.14E+00 Cs-1 37 <2.40E+00 BaLa-140 <8.20E+00 Be-7 <2.29E+01 K-40 1.84E+02 H3SW 7.32E+02 0.00E+00 1.70E+00 0.00E+00 1.85E+00 0.00E+00 4.03E+00 0.00E+00 1.69E+00 0.00E+00 3.49E+00 0.00E+00 3.42E+00 0.00E+00 2.35E+00 0.00E+00 1.40E+01 0.00E+00 1.54E+00 0.00E+00 1.74E+00 0.OOE+00 6.10E+00 0.00E+00 1.86E+01 1.54E+01 1.59E+01 6.96E+01 1.90E+02 Sigma Error(1) LLD 0.00E+00 2.26E+00 0.00E+00 2.66E+00 0.00E+00 6.25E+00 0.OOE+00 2.63E+00 0.00E+00 4.41 E+00 0.00E+00 4.82E+00 0.00E+00 3.44E+00 0.00E+00 1.34E+01 0.00E+00 2.14E+00 0.00E+00 2.40E+00 0.00E+00 8.20E+00 0.00E+00 2.29E+01 1.59E+01 1.82E+01 6.27E+01 1.66E+02 Sample ID: 262877 Sample Dates: 6/6/2013 -7/1/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.00E+00 0.00E+00 2.00E+00 Co-58 <2.34E+00 0.00E+00 2.34E+00 Fe-59 <4.82E+00 0.00E+00 4.82E+00 Co-60 <1.92E+00 0.OOE+00 1.92E+00 Zn-65 <4.19E+00 0.00E+00 4.191+00 Zr-95 <4.48E+00 0.00E+00 4.48E+00 Nb-95 <3.08E+00 0.00E+00 3.08E+00 1-131 <1.42E+01 0.00E+00 1.42E+01 Cs-134 <1.86E+00 0.00E+00 1.86E+00 Cs-137 <2.08E+00 0.00E+00 2.08E+00 BaLa-140 <7.22E+00 0.00E+00 7.22E+00 Be-7 <2.38E+01 0.00E+00 2.38E+01 K-40 1.71E+02 1.66E+01 1.98E+01 H3SW 1.81E+03 8.10E+01 1.79E+02 Sample ID: 265321 Sample Dates: 7/11/2013-886/2013 Nuclide Activity Sigma Error(1) LLD Mn-54 <2.63E+00 0.00E+00 2.63E+00 Co-58 <2.85E+00 0.00E+00 2.85E+00 Fe-59 <6.33E+00 0.00E+00 6.33E+00 Co-60 <3.51 E+00 0.00E+00 3.51E+00 Zn-65 <6.37E+00 0.00E+00 6.37E+00 Zr-95 <5.74E+00 0.00E+00 5.74E+00 Nb-95 <3.36E+00 0.00E+00 3.36E+00 1-131 <1.32E+01 0.00E+00 1.32E+01 Cs-134 <2.54E+00 0.00E+00 2.54E+00 Cs-137 <3.19E+00 0.00E+00 3.19E+00 BaLa-140 <8.03E+00 0.00E+00 8.03E+00 Be-7 <2.67E+01 0.00E+00 2.67E+01 K-40 8.98E+01 1.31E+01 2.37E+01 H3SW 3.85E+03 9.93E+01 1.68E+02 Sample ID: 269708 Sample Dates: 8/6/2013 -9/3/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.88E+00 0.00E+00 1.88E+00 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

'E 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 94 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 40 [ INDICATOR

-ESE @ 0.6 miles ]Sample ID: 269708 Sample Dates: 8/6/2013 -9/3/2013 Nuclide Activity Co-58 <1.84E+00 Fe-59 <5.48E+00 Co-60 <2.11E+00 Zn-65 <4.08E+00 Zr-95 <4.40E+00 Nb-95 <2.88E+00 1-131 <1.10E+01 Cs-134 <1.65E+00 Cs-137 <2.01E+00 BaLa-140 <8.25E+00 Be-7 <1.76E+01 K-40 7.26E+01 H3SW 4.54E+03 Sample ID: 272780 Sample Dates: 9/312013 -10/7/2013 Nuclide Activity Mn-54 <2.14E+00 Co-58 <2.44E+00 Fe-59 <5.OOE+00 Co-60 <2.47E+00 Zn-65 <4.41E+00 Zr-95 <4.96E+00 Nb-95 <3.36E+00 1-131 <1.38E+01 Cs-1 34 <2.03E+00 Cs-137 <2.21E+00 BaLa-140 <5.68E+00 Be-7 <2.47E+01 K-40 1.60E+02 H3SW 4.91E+03 Sample ID: 275211 Sample Dates: 1017/2013

-11/4/2013 Nuclide Activity Mn-54 <3.29E+00 Co-58 <3.61E+00 Fe-59 <8.10E+00 Co-60 <3.63E+00 Zn-65 <7.24E+00 Zr-95 <6.77E+00 Nb-95 <5.14E+00 1-131 <1.45E+01 Cs-134 <3.15E+00 Cs-137 <3.72E+00 BaLa-140 <8.73E+00 Be-7 <3.56E+01 K-40 1.56E+02 Sigma Error(1) LLD O.OOE+00 1.84E+00 O.OOE+00 5.48E+00 O.OOE+00 2.11E+00 O.OOE+00 4.08E+00 O.OOE+00 4.40E+00 O.OOE+00 2.88E+00 O.OOE+00 1.10E+01 0.00E+00 1.65E+00 O.OOE+00 2.01 E+00 0.00E+00 8.25E+00 O.OOE+00 1.76E+01 1.05E+01 1.77E+01 1.10E+02 1.88E+02 Sigma Error(1) LLD O.OOE+00 2.14E+00 O.OOE+00 2.44E+00 O.OOE+00 5.OOE+00 O.OOE+00 2.47E+00 O.OOE+00 4.41E+00 O.OOE+00 4.96E+00 O.OOE+00 3.36E+00 O.OOE+00 1.38E+01 O.OOE+00 2.03E+00 O.OOE+00 2.21 E+00 O.OOE+00 5.68E+00 0.00E+00 2.47E+01 1.79E+01 1.96E+01 1.14E+02 1.83E+02 Sigma Error(1) LLD O.OOE+00 3.29E+00 0.00E+00 3.61E+00 O.OOE+00 8.10E+00 O.OOE+00 3.63E+00 O.OOE+00 7.24E+00 O.OOE+00 6.77E+00 O.OOE+00 5.14E+00 O.OOE+00 1.45E+01 O.OOE+00 3.15E+00 O.OOE+00 3.72E+00 0.00E+00 8.73E+00 O.OOE+00 3.56E+01 2.03E+01 3.34E+01 H3SW 7.48E+03 1.32E+02 1.70E+02 Sample ID: 279534 Sample Dates: 11/4/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.70E+00 O.OOE+00 1.70E+00 Co-58 <2.06E+00 O.OOE+00 2.06E+00 Fe-59 <4.53E+00 O.OOE+00 4.53E+00 Co-60 <1.66E+00 0.00E+00 1.66E+00 Zn-65 <3.69E+00 O.OOE+00 3.69E+00 Zr-95 <3.69E+00 O.OOE+00 3.69E+00 Nb-95 <2.42E+00 O.OOE+00 2.42E+00 1-131 <1.11E+01 O.OOE+00 1.11E+01 Cs-134 <1.80E+00 O.OOE+00 1.80E+00 Cs-1 37 <1.94E+00 O.OOE+00 1.94E+00 BaLa-140 <6.17E+00 O.OOE+00 6.17E+00 Be-7 <1.90E+01 O.OOE+00 1.90E+01 K-40 1.73E+02 1.59E+01 1.82E+01 H3SW 6.52E+03 1.37E+02 2.02E+02 Sample Point 41 [CONTROL -N @ 8 miles I Sample ID: 177722 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 O.OOE+00 1.50E+01 Fe-59 <3.OOE+01 0.00E+00 3.OOE+01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories Efl 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 95 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCil/l Sample Point 41 [ CONTROL -N @ 8 miles ]Sample ID: 177722 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.OOE+01 0.OOE+00 3.00E+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.OOE+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <1.50E+01 0.OOE+00 1.50E+01 Cs-137 <1.80E+01 0.OOE+00 1.80E+01 BaLa-140 <1.50E+01 0.OOE+00 1.50E+01 K-40 5.72E+02 4.74E+01 TI-208 3.38E+00 1.51E+00 Pb-212 5.86E+00 2.87E+00 Bi-214 1.08E+01 3.26E+00 Pb-214 1.03E+01 3.49E+00 Ra-226 9.81E+01 3.70E+01 Ac-228 1.05E+01 5.21E+00 Th-234 9.57E+01 5.40E+00 Sample ID: 177788 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD H3SW <2.05E+02 0.00E+00 2.05E+02 Sample ID: 177910 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.00E+00 1.50E+01 Co-58 <1.50E+01 0.OOE+00 1.50E+01 Fe-59 <3.00E+01 0.OOE+00 3.OOE+01 Co-60 <1.50E+01 0.OOE+00 1.50E+01 Zn-65 <3.00E+01 0.OOE+00 3.OOE+01 Zr-95 <1.50E+01 0.00E+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-1 34 <1.50E+01 0.00E+00 1.50E+01 Cs-1 37 <1.80E+01 0.OOE+00 1.80E+01 BaLa-140 <1.50E+01 0.OOE+00 1.50E+01 K-40 5.68E+02 4.73E+01 TI-208 4.86E+00 1.57E+00 Pb-212 4.55E+00 2.22E+00 Bi-214 9.75E+00 2.93E+00 Ra-226 1.19E+02 3.65E+01 Ac-228 1.26E+01 4.22E+00 Th-234 1.24E+02 5.37E+01 Sample ID: 177923 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD H3SW <2.05E+02 0.00E+00 2.05E+02 Sample ID: 178041 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.OOE+00 1.50E+01 Co-58 <1.50E+01 0.00E+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.002+01 Co-60 <1.50E+01 0.00E+00 1.50E+01 Zn-65 <3.00E+01 0.00E+00 3.OOE+01 Zr-95 <1.50E+01 0.00E+00 1.50E+01 Nb-95 <1.50E+01 0.00E+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-1 34 <1.50E+01 0.00E+00 1.50E+01 Cs-1 37 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 5.57E+02 4.64E+01 TI-208 3.72E+00 1.66E+00 Pb-212 6.76E+00 2.85E+00 Bi-214 8.31E+00 3.28E+00 Ra-226 1.23E+02 3.65E+01 Ac-228 1.25E+01 5.32E+00 Th-234 1.65E+02 5.45E+01 Sample ID: 178104 Sample Dates: 3/1812013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD H3SW <2.05E+02 0.00E+00 2.05E+02 Sample ID: 258037 Sample Dates: 4/3/2013 -5/6/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.85E+00 0.00E+00 1.85E+00 Co-58 <2.06E+00 0.00E+00 2.06E+00 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 96 of 120 Duke Energy Annual Report -Appendix E / 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 41 [ CONTROL -N @ 8 miles ]Sample ID: 258037 Sample Dates: 41312013 -5/6/2013 Nuclide Activity Sigma Error (1) LLD Fe-59 <4.71 E+00 Co-60 <2.81 E+00 Zn-65 <4.81E+00 Zr-95 <3.85E+00 Nb-95 <3.28E+00 1-131 <1.36E+01 Cs-1 34 <1.96E+00 Cs-1 37 <2.39E+00 BaLa-140 <7.97E+00 Be-7 <2.27E+01 K-40 6.85E+01 H3SW <-3.8E+01 Sample ID: 259649 Sample Dates: 5/6/2013 -6/3/2013 Nuclide Activity Mn-54 <1.76E+00 Co-58 <2.02E+00 Fe-59 <4.30E+00 Co-60 <1.76E+00 Zn-65 <3.85E+00 Zr-95 <3.86E+00 Nb-95 <2.52E+00 1-131 <1.30E+01 Cs-1 34 <1.55E+00 Cs-137 <1.61E+00 BaLa-140 <5.74E+00 Be-7 <1.93E+01 K-40 1.65E+02 H3SW <1.19E+02 Sample ID: 262878 Sample Dates: 6/6/2013 -711/2013 Nuclide Activity Mn-54 <1.83E+00 Co-58 <2.08E+00 Fe-59 <4.06E+00 Co-60 <2.04E+00 Zn-65 <3.76E+00 Zr-95 <3.65E+00 Nb-95 <2.69E+00 1-131 <1.18E+01 Cs-134 <1.70E+00 Cs-137 <1.94E+00 BaLa-140 <5.39E+00 Be-7 <1.81E+01 K-40 1.96E+02 H3SW <5.05E+01 O.OOE+00 4.71E+00 O.OOE+00 2.81E+00 0.00E+00 4.81E+00 O.OOE+00 3.85E+00 0.OOE+00 3.28E+00 O.OOE+00 1.36E+01 O.OOE+00 1.96E+00 O.OOE+00 2.39E+00 O.OOE+00 7.97E+00 O.OOE+00 2.27E+01 1.25E+01 2.16E+01 0.90E+00 1.91 E+02 Sigma Error(1) LLD 0.OOE+00 1.76E+00 O.OOE+00 2.02E+00 0.OOE+00 4.30E+00 O.OOE+00 1.76E+00 O.OOE+00 3.85E+00 O.OOE+00 3.86E+00 0.OOE+00 2.52E+00 0.OOE+00 1.30E+01 O.OOE+00 1.55E+00 0.00E+00 1.61E+00 0.00E+00 5.74E+00 O.OOE+00 1.93E+01 1.47E+01 1.61E÷01 O.OOE+00 1.75E+02 Sigma Error(1) LLD O.OOE+00 1.83E+00 O.OOE+00 2.08E+00 O.OOE+00 4.06E+00 0.OOE+00 2.04E+00 O.OOE+00 3.76E+00 O.OOE+00 3.65E+00 O.OOE+00 2.69E+00 O.OOE+00 1.18E+01 O.OOE+00 1.70E+00 O.OOE+00 1.94E+00 O.OOE+00 5.39E+00 O.OOE+O0 1.81E+01 1.35E+01 1.37E+01 O.OOE+00 1.80E+02 Sample ID: 265322 Sample Dates: 7/1/2013 -8/6/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.70E+00 O.OOE+00 1.70E+00 Co-58 <1.73E+00 0.OOE+00 1.73E+00 Fe-59 <4.32E+00 O.OOE+00 4.32E+00 Co-60 <1.49E+00 O.OOE+00 1.49E+00 Zn-65 <3.40E+00 0.OOE+00 3.40E+00 Zr-95 <3.40E+00 O.OOE+00 3.40E+00 Nb-95 <2.66E+00 O.OOE+00 2.66E+00 1-131 <1.40E+01 O.OOE+00 1.40E+01 Cs-134 <1.62E+00 O.OOE+00 1.62E+00 Cs-137 <1.55E+00 O.OOE+00 1.55E+00 BaLa-140 <5.61 E+00 O.OOE+00 5.61 E+00 Be-7 <1.75E+01 O.OOE+00 1.75E+01 K-40 1.55E+02 1.42E+01 1.44E+01 H3SW <1.36E+01 O.OOE+00 1.69E+02 Sample ID: 269709 Sample Dates: 8/5/2013 -9/3/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.34E+00 O.OOE+00 2.34E+00 Co-58 <2.42E+00 O.OOE+00 2.42E+00 Fe-59 <5.10E+00 O.OOE+00 5.10E+00 Co-60 <2.62E+00 O.OOE+00 2.62E+00 Zn-65 <4.54E+00 O.OOE+00 4.54E+00 Zr-95 <4.57E+00 O.OOE+00 4.57E+00 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories.E -13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 97 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 41 [ CONTROL -N @ 8 miles ]Sample ID: 269709 Sample Dates: 8/512013 -913/2013 Nuclide Activity Sigma Error (1) LLD Nb-95 <2.95E+00 O.OOE+00 2.95E+00 1-131 <1.21E+01 O.OOE+00 1.21E+01 Cs-1 34 <1.84E+00 O.OOE+00 1.84E+00 Cs-1 37 <2.38E+00 O.OOE+00 2.38E+00 BaLa-140 <8.39E+00 O.OOE+00 8.39E+00 Be-7 <2.18E+01 0.00E+00 2.18E+01 K-40 7.27E+01 1.48E+01 2.22E+01 H3SW <-9.4E+01 0.00E+00 1.87E+02 Sample ID: 272781 Sample Dates: 9/3/2013 -10/7/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.79E+00 O.OOE+00 1.79E1+00 Co-58 <2.18E+00 O.OOE+00 2.18E+00 Fe-59 <4.79E+00 O.OOE+00 4.79E+00 Co-60 <2.34E+00 O.OOE+00 2.34E+00 Zn-65 <4.08E+00 O.OOE+00 4.08E+00 Zr-95 <3.81E+00 O.OOE+00 3.81E+00 Nb-95 <2.76E+00 O.OOE+00 2.76E+00 1-131 <1.28E+01 O.OOE+00 1.28E+01 Cs-134 <1.82E+00 O.OOE+00 1.82E+00 Cs-137 <1.96E+00 O.OOE+00 1.96E+00 BaLa-140 <7.32E+00 O.OOE+00 7.32E+00 Be-7 <2.13E+01 O.OOE+00 2.13E+01 K-40 1.70E+02 1.56E+01 1.72E+01 H3SW <-1.9E+01 0.00E+00 1.82E+02 Sample ID: 275212 Sample Dates: 10/7/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <3.02E+00 O.OOE+00 3.02E+00 Co-58 <3.41 E+00 O.OOE+00 3.41 E+00 Fe-59 <7.39E+00 O.OOE+00 7.39E+00 Co-60 <3.08E+00 O.OOE+00 3.08E+00 Zn-65 <6.46E+00 O.OOE+00 6.46E+00 Zr-95 <7.50E+00 O.OOE+00 7.50E+00 Nb-95 <3.30E+00 O.OOE+00 3.30E+00 1-131 <1.38E+01 O.OOE+00 1.38E+01 Cs-134 <2.30E+00 O.OOE+00 2.30E+00 Cs-137 <3.97E+00 O.OOE+00 3.97E+00 BaLa-140 <8.30E+00 0.00E+00 8.30E+00 Be-7 <3.14E+01 O.OOE+00 3.14E+01 K-40 1.85E+02 1.89E+01 3.OOE+01 H3SW <3.05E+01 O.OOE+00 1.69E+02 Sample ID: 279535 Sample Dates: 1114/2013

-12/212013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.67E+00 O.OOE+00 2.67E+00 Co-58 <3.20E+00 O.OOE+00 3.20E+00 Fe-59 <6.96E+00 O.OOE+00 6.96E+00 Co-60 <3.60E+00 O.OOE+00 3.60E+00 Zn-65 <6.98E+00 O.OOE+00 6.98E+00 Zr-95 <5.74E+00 O.OOE+00 5.74E+00 Nb-95 <4.12E+00 O.OOE+00 4.12E+00 1-131 <1.44E+01 0.001E+00 1.44E+01 Cs-134 <3.05E+00 O.OOE+00 3.05E+00 Cs-137 <3.16E+00 O.OOE+00 3.16E+00 BaLa-140 <8.95E+00 O.OOE+00 8.95E+00 Be-7 <3.34E+01 O.OOE+00 3.34E+01 K-40 1.64E+02 2.10E+01 3.14E+01 H3SW <-2.2E+01 O.OOE+00 1.98E+02 Sample Point 57 [INDICATOR

-@ 0 miles]Sample ID: 177723 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 O.OOE+00 1.50E+01 Fe-59 <3.OOE+01 O.OOE+00 3.00E+01 Co-60 <1.50E+01 O.OOE+00 1.50E+01 Zn-65 <3.00E+01 O.OOE+00 3.OOE+01 Zr-95 <1.50E+01 O.OOE+00 1.50E+01 Nb-95 <1.50E+01 O.OOE+00 1.50E+01 1-131 <1.50E+01 O.OOE+00 1.50E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error. results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 ..EnRad Laboratories Appendix E -Page 98 of 120 Duke Energy Annual Report -Appendix E En l 13339 Hagers Ferry Road" D Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 57 [ INDICATOR

-@ 0 miles ]Sample ID: 177723 Sample Dates: 1/21/2013

-1/2112013 Nuclide Activity Sigma Error (1) LLD Cs-134 <1.50E+01 0.00E+00 1.50E+01 Cs-137 <1.80E+01 0.OOE+00 1.80E+01 BaLa-140 <1.50E+01 0.OOE+00 1.50E+01 K-40 2.27E+02 2.77E+01 TI-208 2.70E+00 1.28E+00 Pb-212 1.01E+01 1.552+00 Bi-214 3.15E+01 4.38E+00 Pb-214 2.85E+01 3.93E+00 Ra-226 1.90E+02 3.25E+01 Th-234 2.51E+02 4.94E+01 Sample ID: 177789 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity H3SW 4.94E+02 Sample ID: 177911 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Mn-54 <1.50E+01 Co-58 <1.50E+01 Fe-59 <3.00E+01 Co-60 <1.50E+01 Zn-65 <3.00E+01 Zr-95 <1.50E+01 Nb-95 <1.50E+01 1-131 <1.50E+01 Cs-134 <1.50E+01 Cs-137 <1.80E+01 BaLa-140 <1.50E+01 K-40 2.39E+02 TI-208 3.10E+00 Pb-212 7.69E+00 Bi-214 1.58E+01 Pb-214 1.86E+01 Ra-226 2.19E+02 Th-234 2.13E+02 Sample ID: 177924 Sample Dates: 2/18/2013

-2118/2013 Nuclide Activity H3SW <2.05E+02 Sample ID: 178042 Sample Dates: 3/18/2013

-3/1812013 Nuclide Activity Mn-54 <1.50E+01 Co-58 <1.50E+01 Fe-59 <3.00E+01 Co-60 <1.50E+01 Zn-65 <3.00E+01 Zr-95 <1.50E+01 Nb-95 <1.50E+01 1-131 <1.50E+01 Cs-134 <1.50E+01 Cs-137 <1.80E+01 BaLa-140 <1.50E+01 K-40 2.20E+02 TI-208 3.72E+00 Pb-212 8.98E+00 Bi-214 9.88E+00 Pb-214 5.62E+00 Ra-226 2.11E+02 Th-234 1.82E+02 Sigma Error (1) LLD 1.28E+02 2.04E+02 Sigma Error (1) LLD 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 3.00E+01 0.00E+00 1.50E+01 0.00E+00 3.00E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.80E+01 0.00E+00 1.50E+01 2.94E+01 1.50E+00 2.14E+00 3.13E+00 3.44E+00 3.28E+01 4.79E+01 Sigma Error (1) LLD 0.00E+00 2.05E+02 Sigma Error (1) LLD 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 3.00E+01 0.00E+00 1.50E+01 0.00E+00 3.00E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.50E+01 0.00E+00 1.80E+01 0.00E+00 1.50E+01 2.81 E+01 1.39E+00 2.38E+00 2.66E+00 2.53E+00 3.29E+01 4.27E+01 Sample ID: 178105 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD H3SW <2.05E+02 0.00E+00 2.05E+02 Sample ID: 268039 Sample Dates: 4/3/2013 -5/6/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Zr-95 Nb-95 1-131<1.80E+00<1.78E+00<3.98E+00<2.59E+00<3.44E+00<3.70E+00<2.59E+00<1.38E+01 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00+E00 0.00E+00 0.00E+00 0.00E+00 1.80E+00 1.78E+00 3.98E+00 2.59E+00 3.44E+00 3.70E+00 2.59E+00 1.38E+01 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[fll 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 99 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 57 [ INDICATOR

-@ 0 miles ]Sample ID: 258039 Sample Dates: 4/3/2013-5/6/2013 Nuclide Activity Sigma Error (1) LLD Cs-134 <1.75E+00 0.OOE+00 1.75E+00 Cs-137 <1.71E+00 O.OOE+00 1.71E+00 BaLa-140 <7.43E+00 O.OOE+00 7.43E+00 Be-7 <1.83E+01 O.OOE+00 1.83E+01 K-40 8.39E+01 1.02E+01 2.02E+01 H3SW <3.10E+01 O.OOE+00 1.90E+02 Sample ID: 259650 Sample Dates: 5/6/2013 -6/3/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.20E+00 0.OOE+00 2.20E+00 Co-58 <2.59E+00 0.00E+00 2.59E+00 Fe-59 <5.70E+00 0.OOE+00 5.70E+00 Co-60 <2.93E+00 0.OOE+00 2.93E+00 Zn-65 <4.84E+00 0.OOE+00 4.84E+00 Zr-95 <4.87E+00 O.OOE+00 4.87E+00 Nb-95 <3.76E+00 0.OOE+00 3.76E+00 1-131 <1.45E+01 0.OOE+00 1.45E+01 Cs-134 <2.13E+00 0.OOE+00 2.13E+00 Cs-137 <2.11E+00 0.OOE+00 2.11E+00 BaLa-140 <9.36E+00 0.OOE+00 9.36E+00 Be-7 <2.37E+01 O.00E+00 2.37E+01 K-40 1.26E+02 1.58E+01 2.28E+01 H3SW <4.67E+00 0.OOE+00 1.72E+02 Sample ID: 262879 Sample Dates: 61612013 -71112013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.79E+00 Co-58 <2.25E+00 Fe-59 <5.72E+00 Co-60 <2.31E+00 Zn-65 <4.32E+00 Zr-95 <4.37E+00 Nb-95 <3.34E+00 1-131 <1.28E+01 Cs-134 <1.75E+00 Cs-137 <2.17E+00 BaLa-140 <8.28E+00 Be-7 <2.26E+01 K-40 9.29E+01 H3SW <7.18E+00 Sample ID: 265323 Sample Dates: 7/11/2013

-8/5/2013 Nuclide Activity Mn-54 <2.09E+00 Co-58 <2.79E+00 Fe-59 <5.68E+00 Co-60 <2.64E+00 Zn-65 <4.42E+00 Zr-95 <5.04E+00 Nb-95 <3.50E+00 1-131 <1.24E+01 Cs-1 34 <2.35E+00 Cs-1 37 <2.44E+00 BaLa-140 <8.50E+00 Be-7 <2.47E+01 K-40 4.71E+01 H3SW <9.04E+01 Sample ID: 269710 Sample Dates: 8/5/2013 -9/312013 Nuclide Activity Mn-54 <2.91E+00 Co-58 <3.19E+00 Fe-59 <6.38E+00 Co-60 <3.46E+00 Zn-65 <5.15E+00 Zr-95 <6.02E+00 Nb-95 <3.52E+00 1-131 <1.45E+01 Cs-134 <2.53E+00 Cs-137 <2.32E+00 BaLa-140 <9.21 E+00 Be-7 <2.11E+01 O.OOE+00 1.79E+00 O.OOE+00 2.25E+00 O.OOE+00 5.72E+00 O.OOE+00 2.31E+00 O.OOE+00 4.32E+00 O.OOE+00 4.37E+00 O.OOE+00 3.34E+00 O.OOE+00 1.28E+01 O.OOE+00 1.75E+00 O.OOE+00 2.17E+00 O.OOE+00 8.28E+00 O.OOE+00 2.26E+01 1.10E+01 2.07E+01 O.OOE+00 1.79E+02 Sigma Error(1) LLD O.OOE+00 2.09E+00 O.OOE+00 2.79E+00 O.OOE+00 5.68E+00 O.OOE+00 2.64E+00 O.OOE+00 4.42E+00 O.OOE+00 5.04E+00 O.OOE+00 3.50E+00 O.OOE+00 1.24E+01 O.OOE+00 2.35E+00 0.00E+00 2.44E+00 O.OOE+00 8.50E+00 O.OOE+00 2.47E+01 1.79E+01 2.54E+01 O.OOE+00 1.68E+02 Sigma Error(1) LLD O.OOE+00 2.91E+00 O.OOE+00 3.19E+00 O.OOE+00 6.38E+00 O.OOE+00 3.46E+00 O.OOE+00 5.15E+00 O.OOE+00 6.02E+00 O.OOE+00 3.52E+00 O.OOE+00 1.45E+01 O.OOE+00 2.53E+00 0.OOE+00 2.32E+00 O.OOE+00 9.21 E+00 O.OOE+00 2.11E+01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories13339 Hagers. Ferry Road D Huntersville, North Carolina 28078 Appendix E -Page 100 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCill Sample Point 57 [ INDICATOR

-@ 0 miles ]Sample ID: 269710 Sample Dates: 8/5/2013 -9/312013 Nuclide Activity Sigma Error (1) LLD K-40 7.02E+01 1.24E+01 2.46E+01 H3SW <O.OoE+00 O.0OE+00-1.87E+02 Sample ID: 272782 Sample Dates: 9/3/2013 -10/712013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.27E+00 O.OOE+00 2.27E+00 Co-58 <2.59E+00 O.OOE+00 2.59E+00 Fe-59 <5.52E+00 O.OOE+00 5.52E+00 Co-60 <2.59E+00 0.00E+00 2.59E+00 Zn-65 <4.86E+00 O.OOE+00 4.86E+00 Zr-95 <4.74E+00 O.OOE+00 4.74E+00 Nb-95 <2.90E+00 O.OOE+00 2.90E+00 1-131 <1.44E+01 O.OOE+00 1.44E+01 Cs-134 <2.13E+00 O.OOE+00 2.13E+00 Cs-137 <2.41E+00 O.OOE+00 2.41E+00 BaLa-140 <9.34E+00 0.00E+00 9.34E+00 Be-7 <2.15E+01 O.OOE+00 2.15E+01 K-40 <3.70E+01 O.OE+00 3.70E+01 H3SW <-5.2E+01 O.OOE+00 1.81E+02 Sample ID: 275213 Sample Dates: 10/7/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <3.42E+00 0.00E+00 3.42E+00 Co-58 <3.80E+00 O.OOE+00 3.80E+00 Fe-59 <7.55E+00 0.OOE+00 7.55E+00 Co-60 <3.89E+00 O.OOE+00 3.89E+00 Zn-65 <6.51E+00 O.OOE+00 6.51E+00 Zr-95 <6.76E+00 O.OOE+00 6.76E+00 Nb-95 <4.24E+00 O.OOE+00 4.24E+00 1-131 <1.28E+01 O.OOE+00 1.28E+01 Cs-134 <3.06E+00 O.OOE+00 3.06E+00 Cs-137 <3.34E+00 O.OOE+00 3.34E+00 BaLa-140 <9.43E+00 O.OOE+00 9.43E+00 Be-7 <3.42E+01 O.OOE+00 3.42E+01 K-40 7.68E+01 1.42E+01 3.30E+01 H3SW <1.22E+02 O.OOE+00 1.69E+02 Sample ID: 279536 Sample Dates: 11/4/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.56E+00 O.OOE+00 2.56E+00 Co-58 <2.83E+00 O.OOE+00 2.83E+00 Fe-59 <7.06E+00 O.OOE+00 7.06E+00 Co-60 <3.40E+00 O.OOE+00 3.40E+00 Zn-65 <6.59E+00 O.OOE+00 6.59E+00 Zr-95 <5.25E+00 O.OOE+00 5.25E+00 Nb-95 <3.70E+00 O.OOE+00 3.70E+00 1-131 <1.36E+01 O.OOE+00 1.36E+01 Cs-134 <2.77E+00 O.OOE+00 2.77E+00 Cs-137 <2.59E+00 O.OOE+00 2.59E+00 BaLa-140 <4.67E+00 O.OOE+00 4.67E+00 Be-7 <2.81E+01 O.OOE+00 2.81E+01 K-40 6.47E+01 1.71 E+01 2.55E+01 H3SW <3.34E+01 O.OOE+00 2.03E+02 Sample Point 66 [ INDICATOR

-@ 0 miles ]Sample ID: 177724 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 O.OOE+00 1.50E+01 Co-58 <1.50E+01 O.OOE+00 1.50E+01 Fe-59 <3.OOE+01 O.OOE+00 3.OOE+01 Co-60 <1.50E+01 O.OOE+00 1.50E+01 Zn-65 <3.OOE+01 O.0OE+00 3.OOE+01 Zr-95 <1.50E+01 O.OOE+00 1.50E+01 Nb-95 <1.50E+01 O.OOE+00 1.50E+01 1-131 <1.50E+01 O.OOE+00 1.50E+01 Cs-1 34 <1.50E+01 O.00E+00 1.50E+01 Cs-137 <1.80E+01 O.OOE+00 1.80E+01 BaLa-140 <1.50E+01 O.OOE+00 1.50E+01 K-40 4.82E+02 4.04E+01 TI-208 5.31E+00 1.52E+00 Pb-212 1.33E+01 2.65E+00 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -.EnRad Laboratories Appendix E -Page 101 of 120 Duke Energy Annual Report -Appendix E 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 66 [ INDICATOR

-@ 0 miles ]Sample ID: 177724 Sample Dates: 1121/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD Bi-214 1.67E+01 3.30E+00 Pb-214 1.38E+01 3.38E+00 Ra-226 1.80E+02 3.50E+01 Ac-228 1.61E+01 5.15E+00 Th-234 2.11E+02 4.88E+01 Sample ID: 177790 Sample Dates: 1/21/2013

-1/21/2013 Nuclide Activity Sigma Error (1) LLD H3SW 1.07E+03 1.33E+02 2.04E+02 Sample ID: 177912 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.OOE+00 1.50E+01 Co-58 <1.50E+01 0.OOE+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.OOE+01 Co-60 <1.50E+01 0.OOE+00 1.50E+01 Zn-65 <3.OOE+01 0.OOE+00 3.00E+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.OOE+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <1.50E+01 0.OOE+00 1.50E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 BaLa-140 <1.50E+01 0.00E+00 1.50E+01 K-40 4.53E+02 3.81E+01 TI-208 4.80E+00 1.40E+00 Pb-212 1.04E+01 2.75E+00 Bi-214 1.68E+01 3.40E+00 Pb-214 1.26E+01 3.07E+00 Ra-226 2.18E+02 3.77E+01 Ac-228 1.45E+01 5.24E+00 Th-234 2.15E+02 5.18E+01 Sample ID: 177925 Sample Dates: 2/18/2013

-2/18/2013 Nuclide Activity Sigma Error (1) LLD H3SW 7.10E+02 1.31E+02 2.05E+02 Sample ID: 178043 Sample Dates: 3/18/2013

-3/18/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.50E+01 0.OOE+00 1.50E+01 Co-58 <1.50E+01 0.OOE+00 1.50E+01 Fe-59 <3.00E+01 0.00E+00 3.00E+01 Co-60 <1.50E+01 0.OOE+00 1.50E+01 Zn-65 <3.00E+01 0.OOE+00 3.OOE+01 Zr-95 <1.50E+01 0.OOE+00 1.50E+01 Nb-95 <1.50E+01 0.OOE+00 1.50E+01 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <1.50E+01 0.OOE+00 1.50E+01 Cs-137 <1.80E+01 0.OOE+00 1.80E+01 BaLa-140 <1.50E+01 0.OOE+00 1.50E+01 K-40 4.36E+02 3.70E+01 TI-208 5.58E+00 1.34E+00 Pb-212 1.01E+01 2.53E+00 Bi-214 1.53E+01 2.80E+00 Pb-214 1.38E+01 3.29E+00 Ra-226 2.01 E+02 3.71E+01 Ac-228 1.50E+01 4.57E+00 Th-234 2.06E+02 4.77E+01 Sample ID: 178106 Sample Dates: 3/18/2013-3/18/2013 Nuclide Activity Sigma Error (1) LLD H3SW 4.97E+02 1.29E+02 2.05E+02 Sample ID: 258040 Sample Dates: 4/3/2013 -5/6/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.68E+00 0.OOE+00 1.68E+00 Co-58 <2.30E+00 0.OOE+00 2.30E+00 Fe-59 <5.22E+00 0.00E+00 5.22E+00 Co-60 <2.85E+00 0.00E+00 2.85E+00 Zn-65 <3.91 E+00 0.00E+00 3.91 E+00 Zr-95 <3.93E+00 0.OOE+00 3.93E+00 Nb-95 <2.83E+00 0.00E+00 2.83E+00 1-131 <1.40E+01 0.00E+00 1.40E+01 Cs-1 34 <1.90E+00 0.00E+00 1.90E+00 Cs-137 <2.15E+00 0.00E+00 2.15E+00 BaLa-140 <8.22E+00 0.00E+00 8.22E+00 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

/n [g 13339 Hagers Ferry Road-D Huntersville, North Carolina 28078 Appendix E -Page 102 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCi/I Sample Point 66 [ INDICATOR

-@ 0 miles ]Sample ID: 258040 Sample Dates: 413/2013 -516/2013 Nuclide Activity Sigma Error (1) LLD Be-7 <1.91E+01 0.OOE+00 1.91E+01 K-40 4.87E+01 1.35E+01 2.OOE+01 H3SW 3.67E+02 6.38E+01 1.90E+02 Sample ID: 269661 Sample Dates: 5/6/2013 -613/2013 Nuclide Activity Mn-54 <1.86E+00 Co-5 <2.09E+00 Fe-59 <5.10E+00 Co-60 <2.36E+00 Zn-65 <3.94E+00 Zr-95 <4.08E+00 Nb-95 <2.77E+00 1-131 <1.30E+01 Cs-1 34 <1.77E+00 Cs-137 <2.18E+00 BaL-a-140

<7.25E+00 Be-7 <2.03E+01 K-40 6.64E+01 H3SW 5.27E+02 Sample ID: 262880 Sample Dates: 616/2013 -7/11/2013 Nuclide Activity Mn-54 <1.31E+00 Co-58 <1.60E+00 Fe-59 <4.06E+00 Co-60 <1.87E+00 Zn-65 <3.12E+00 Zr-95 <2.95E+00 Nb-95 <2.28E+00 1-131 <1.38E+01 Cs-134 <1.22E+00 Cs-1 37 <1.42E+00 BaLa-140 <6.26E+00 Be-7 <1.48E+01 K-40 6.10E+01 H3SW 1.34E+03 Sample ID: 265324 Sample Dates: 7/11/2013

-8/16/2013 Nuclide Activity Mn-54 <2.29E+00 Co-58 <2.48E+00 Fe-59 <5.86E+00 Co-60 <2.53E+00 Zn-65 <4.24E+00 Zr-95 <4.86E+00 Nb-95 <3.65E+00 1-131 <1.43E+01 Cs-134 <2.14E+00 Cs-137 <2.19E+00 BaLa-140 <8.87E+00 Be-7 <2.44E+01 K-40 2.73E+01 Sigma Error(1) LLD O.OOE+00 1.86E+00 O.OOE+O0 2.09E+00 0.00E+00 5.10E+00 0.OOE+00 2.36E+00 O.OOE+00 3.94E+00 0.OOE+00 4.08E+00 O.OOE+00 2.77E+00 0.00E+00 1.30E+01 0.OOE+00 1.77E+00 0.00E+00 2.18E+00 0.00E+00 7.25E+00 0.00E+00 2.03E+01 1.57E+01 1.98E+01 5.91E+01 1.65E+02 Sigma Error(1) LLD 0.00E+00 1.31E+00 O.OOE+00 1.60E+00 0.OOE+00 4.06E+00 0.OOE+00 1.87E+00 0.OOE+00 3.12E+00 0.OOE+00 2.95E+00 0.00E+00 2.28E+00 0.00E+00 1.38E+01 0.OOE+00 1.22E+00 0.OOE+00 1.42E+00 0.OOE+00 6.26E+00 0.OOE+00 1.48E+01 9.04E+00 1.38E+01 7.41E+01 1.76E+02 Sigma Error 1 LLD 0.OOE+00 2.29E+00 0.00E+00 2.48E+00 0.00E+00 5.86E+00 0.OOE+00 2.53E+00 0.OOE+00 4.24E+00 O.OOE+00 4.86E+00 0.OOE+00 3.65E+00 0.OOE+00 1.43E+01 0.00E+00 2.14E+00 0.OOE+00 2.19E+00 0.00E+00 8.87E+00 0.00E+00 2.44E+01 1.68E+01 2.27E+01 H3SW 3.28E+03 9.38E+01 1.68E+02 Sample ID: 269711 Sample Dates: 8/6/2013 -9/3/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.16E+00 O.OOE+00 2.16E+00 Co-58 <2.33E+00 O.00E+00 2.33E+00 Fe-59 <6.29E+00 O.OOE+0O 6.29E+00 Co-60 <2.35E+00 0.00E+00 2.35E+00 Zn-65 <5.11E+00 0.00E+00 5.11E+00 Zr-95 <4.08E+00 0.OOE+00 4.08E+00 Nb-95 <3.28E+00 0.00E+00 3.28E+00 1-131 <1.42E+01 O.OOE+00 1.42E+01 Cs-134 <2.15E+00 O.OOE+00 2.15E+00 Cs-1 37 <2.29E+00 O.OOE+00 2.29E+00 BaLa-140 <8.15E+00 O.OOE+00 8.15E+00 Be-7 <2.28E+01 O.OOE+00 2.28E+01 K-40 1.79E+02 1.72E+01 2.21E+01 H3SW 3.35E+03 9.88E+01 1.87E+02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories.En 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 103 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: SURFACE WATER Concentration (Activity):

pCill Sample Point 66 [ INDICATOR

-@ 0 miles ]Sample ID: 272783 Sample Dates: 9/3/2013 -10/7/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <1.85E+00 O.OOE+00 1.85E+00 Co-58 <2.38E+00 O.OOE+00 2.38E+00 Fe-59 <4.90E+00 O.OOE+00 4.90E+00 Co-60 <1.96E+00 0.00E+00 1.96E+00 Zn-65 <3.59E+00 O.OOE+00 3.59E+00 Zr-95 <4.05E+00 O.OOE+00 4.05E+00 Nb-95 <2.92E+00 O.OOE+00 2.92E+00 1-131 <1.24E+01 O.OOE+00 1.24E+01 Cs-1 34 <1.73E+00 O.OOE+00 1.73E+00 Cs-137 <2.12E+00 O.OOE+00 2.12E+00 BaLa-140 <6.82E+00 O.OOE+00 6.82E+00 Be-7 <1.99E+01 0.00E+00 1.99E+01 K-40 8.88E+01 1.23E+01 1.82E+01 H3SW 3.59E+03 9.96E+01 1.78E+02 Sample ID: 275214 Sample Dates: 10/7/2013

-11/4/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.94E+00 O.OOE+00 2.94E+00 Co-58 <2.82E+00 O.OOE+00 2.82E+00 Fe-59 <6.97E+00 O.OOE+00 6.97E+00 Co-60 <2.90E+00 O.OOE+00 2.90E+00 Zn-65 <6.05E+00 O.OOE+00 6.05E+00 Zr-95 <6.28E+00 0.00E+00 6.28E+00 Nb-95 <4.84E+00 O.OOE+00 4.84E+00 1-131 <1.23E+01 0.OOE+00 1.23E+01 Cs-134 <2.51E+00 O.OOE+00 2.51E+00 Cs-1 37 <3.40E+00 O.OOE+00 3.40E+00 BaLa-140 <9.07E+00 O.OOE+00 9.07E+00 Be-7 <2.86E+01 O.OOE+00 2.86E+01 K-40 1.04E+02 1.52E+01 2.66E+01 H3SW 5.57E+03 1.16E+02 1.69E+02 Sample ID: 279537 Sample Dates: 11/4/2013

-12/2/2013 Nuclide Activity Sigma Error (1) LLD Mn-54 <2.06E+00 O.OOE+00 2.06E+00 Co-58 <2.24E+00 O.OOE+00 2.24E+00 Fe-59 <5.OOE+00 O.OOE+00 5.OOE+00 Co-60 <2.28E+00 0.00E+00 2.28E+00 Zn-65 <4.75E+00 O.OOE+00 4.75E+00 Zr-95 <4.06E+00 O.OOE+00 4.06E+00 Nb-95 <3.11E+00 O.OOE+00 3.11E+00 1-131 <1.34E+01 O.OOE+00 1.34E+01 Cs-1 34 <2.04E+00 O.OOE+00 2.04E+00 Cs-137 <2.11E+00 O.OOE+00 2.11E+00 BaLa-140 <6.14E+00 O.OOE+00 6.14E+00 Be-7 <2.49E+01 O.OOE+00 2.49E+01 K-40 1.62E+02 1.52E+01 2.18E+01 H3SW 4.86E+03 1.23E+02 2.03E+02 Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point I [ CONTROL -ESE @ 24.4 miles ] TLD RING TLDCTRL Sample ID: 114957 Sample Dates: 2/15/2013

-2/16/2013 Nuclide Activity mR/Std Qtr 1.23E+01 Sample ID: 262687 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 12.2 Sample ID: 272296 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 12.0 Sample ID: 281068 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 12.0 Sample Point 2 [ INDICATOR

-S @ 0.2 miles ] TLD RING TLDINNER Sample ID: 114958 Sample Dates: 2/15/2013

-2/16/2013 Nuclide Activity mR/Std Qtr 1.23E+01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 104 of 120 Duke Energy Annual Report -Appendix E ,li 13339 Hagers Ferry Road"- -Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point 2 [ INDICATOR

-S @ 0.2 miles ]TLD RING TLD INNER Sample ID: 262729 Sample Dates: 4/17/2013

-713/2013 Nuclide Activity mR/Std Qtr 12.0 Sample ID: 272338 Sample Dates: 7/3/2013 -10/1012013 Nuclide Activity mR/Std Qtr 12.6 Sample ID: 281110 Sample Dates: 10/10/2013

-111612014 Nuclide Activity mR/Std Qtr 11.3 Sample Point 3 [ INDICATOR

-N @ 0.5 miles] TLD RING TLDINNER Sample ID: 114959 Sample Dates: 2115/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.38E+01 Sample ID: 262688 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.2 Sample ID: 272297 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.0 Sample ID: 281069 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 13.2 Sample Point 4 [ INDICATOR

-ESE @ 0.4 miles] TLD RING TLDINNER Sample ID: 114960 Sample Dates: 2/15/2013

-2/16/2013 Nuclide Activity_ mR/Std Qtr 9.90E+00 Sample ID: 262689 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 10.1 Sample ID: 272298 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 9.5 Sample ID: 281070 Sample Dates: 10/10/2013-1/16/2014 Nuclide Activity mR/Std Qtr 9.5 Sample Point 5 [ INDICATOR

-ENE @ 0.9 miles ] TILD RING TLDINNER Sample ID: 114961 Sample Dates: 2/15/2013

-2/16/2013 Nuclide Activity mR/Std Qtr 1.39E+01 Sample ID: 262690 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 11.7 Sample ID: 272299 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.0 Sample ID: 281071 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 11.9 Sample Point 6 [ INDICATOR

-SSW @ 0.2 miles] TLD RING TLDINNER Sample ID: 114962 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.29E+01 Sample ID: 262691 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.4 Sample ID: 272300 Sample Dates: 7/3/2013 -10/1012013 Nuclide Activity mR/Std Qtr 12.6 Sample ID: 281072 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 12.8 Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles] TLD RING TLDOUTER Sample ID: 114963 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.38E+01 Sample ID: 262692 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 12.0 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Duke Energy Annual Report -Appendix E ' ) 13339 Hagers Ferry Road , FHuntersville, North Carolina 28078 Appendix E -Page 105 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point 7 [ INDICATOR

-ESE @ 6.4 miles ]Sample ID: 272301 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.2 Sample ID: 281073 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 12.2 TLD RING TLDOUTER Sample Point 8 [ INDICATOR

-SSE @ 0.8 miles] TLD RING TLDINNER Sample ID: 114964 Sample Dates: 2/16/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 9.80E+00 Sample ID: 262693 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 10.2 Sample ID: 272302 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 10.4 Sample ID: 281074 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 9.7 Sample Point 9 [ INDICATOR

-S @ 1 miles] TLD RING TLDINNER Sample ID: 114965 Sample Dates: 2/16/2013

-2)16/2013 Nuclide Activity mR/Std Qtr 1.04E+01 Sample ID: 272303 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 11.2 Sample ID: 281075 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 10.8 Sample Point 10 [ INDICATOR

-WSW @ 1 miles ] TLD RING TLDINNER Sample ID: 114966 Sample Dates: 2)1652013

-2)16)2013 Nuclide Activity mR/Std Qtr 1.24E+01 Sample ID: 262695 Sample Dates: 4/17)2013

-7/3/2013 Nuclide Activity mR/Std Qtr 11.9 Sample ID: 272304 Sample Dates: 7/3/2013 -10)10)2013 Nuclide Activity mR/Std Qtr 11.8 Sample ID: 281076 Sample Dates: 1011012013

-1)16/2014 Nuclide Activity mR/Std Qtr 12.0 Sample Point 11 [INDICATOR

-SW @ 1 miles] TLD RING TLD_INNER Sample ID: 114967 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.09E+01 Sample ID: 262696 Sample Dates: 4/17/2013

-7/3)2013 Nuclide Activity mR/Std Qtr 11.1 Sample ID: 272305 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 10.6 Sample ID: 281077 Sample Dates: 10/10/2013

-1/1612014 Nuclide Activity mR/Std Qtr 11.4 Sample Point 12 [ INDICATOR

-SSW @ 1.2 miles] TLD RING TLD_INNER Sample ID: 114968 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.48E+01 Sample ID: 262697 Sample Dates: 4/17)2013

-7/3/2013 Nuclide Activity mR/Std Qtr 15.8 Sample ID: 272306 Sample Dates: 7)3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.8 Sample ID: 281078 Sample Dates: 10/10/2013-1)16)2014 Nuclide Activity mR/Std Qtr 15.5- -(1) Analysis results generated by Hamis Energy and Environmental Center display 2 sigma error, results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Duke Energy Annual Report -Appendix E En ) 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 106 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report- 2013 (Appendix E)Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point 13 [ INDICATOR

-W @ 0.7 miles ] TLD RING TLD_INNER Sample ID: 114969 Sample Dates: 2/15/2013

-2115/2013 Nuclide Activity mR/Std Qtr 1.15E+01 Sample ID: 262698 Sample Dates: 4/17/2013

-7/312013 Nuclide Activity mR/Std Qtr 11.3 Sample ID: 272307 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 10.8 Sample ID: 281079 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 10.7 Sample Point 14 [ INDICATOR

-WNW @ 0.8 miles ] TLD RING TLDINNER Sample ID: 114970 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.51E+01 Sample ID: 262699 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 15.1 Sample ID: 272308 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.5 Sample ID: 281080 Sample Dates: 10/10/2013

-1116/2014 Nuclide Activity mR/Std Qtr 14.9 Sample Point 15 [ INDICATOR

-NW @ 0.7 miles] TLD RING TLD_INNER Sample ID: 114971 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.13E+01 Sample ID: 262700 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 11.6 Sample ID: 272309 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 11.2 Sample ID: 281081 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 10.9 Sample Point 16 [ INDICATOR

-NNW @ 1 miles ] TLD RING TLDINNER Sample ID: 114972 Sample Dates: 2/15/2013

-2115/2013 Nuclide Activity mR/Std Qtr 1.26E+01 Sample ID: 262701 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 12.3 Sample ID: 272310 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 13.4 Sample ID: 281082 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 11.9 Sample Point 17 [ INDICATOR

-N @ 1.2 miles ] TLD RING TLDINNER Sample ID: 114973 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.50E+01 Sample ID: 262702 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 14.8 Sample ID: 272311 Sample Dates: 713/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.9 Sample ID: 281083 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 14.7 Sample Point 18 [ INDICATOR

-SE @ 0.7 miles ] TLD RING TLDINNER Sample ID: 114974 Sample Dates: 2/15/2013

-2/1512013 Nuclide Activity mR/Std Qtr 1.68E+01 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 .. EnRad Laboratories Appendix E -Page 107 of 120 Duke Energy Annual Report -Appendix E ' 13339 Hagers Ferry Road Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point 18 [ INDICATOR

-SE @ 0.7 miles ] TLD RING TLDINNER Sample ID: 262703 Sample Dates: 4/17/2013

-71312013 Nuclide Activity mR/Std Qtr 16.9 Sample ID: 272312 Sample Dates: 713/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 18.5 Sample ID: 281084 Sample Dates: 10110/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 17.1 Sample Point 19 [ INDICATOR

-E @ 1 miles] TLD RING TLDINNER Sample ID: 114975 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.22E+01 Sample ID: 262704 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 12.0 Sample ID: 272313 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 12.8 Sample ID: 281085 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 11.5 Sample Point 20 [ INDICATOR

-ENE @ 1 miles ] TLD RING TLDINNER Sample ID: 114976 Sample Dates: 2/15/2013

-211512013 Nuclide Activity mR/Std Qtr 1.39E+01 Sample ID: 262705 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.0 Sample ID: 272314 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.6 Sample ID: 281086 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 12.8 Sample Point 21 [ INDICATOR

-NE @ 1.4 miles] TLD RING TLDINNER Sample ID: 114977 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.33E+01 Sample ID: 262706 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 11.5 Sample ID: 272315 Sample Dates: 71312013 -10/10/2013 Nuclide Activity mR/Std Qtr 13.5 Sample ID: 281087 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 11.3 Sample Point 22 [ INDICATOR

-NNE @ 1.7 miles] TLD RING TLDINNER Sample ID: 114978 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.05E+01 Sample ID: 262707 Sample Dates: 4/17/2013

-7/312013 Nuclide Activity mR/Std Qtr 11.7 Sample ID: 272316 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 11.1 Sample ID: 281088 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 11.7 Sample Point 23 [ INDICATOR

-ESE @ 1 miles ] TLD RING TLD_INNER Sample ID: 114979 Sample Dates: 2/15/2013

-2/15/2013' Nuclide Activity mR/Std Qtr 1.43E+01 Sample ID: 262708 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 14.8 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 .EnRad Laboratories Appendix E -Page 108 of 120 Duke Energy Annual Report -Appendix E En 9 13339 Hagers Ferry Road-' Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point 23 [ INDICATOR

-ESE @ 1 miles ] TLD RING TLD_INNER Sample ID: 272317 Sample Dates: 713/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.2 Sample ID: 281089 Sample Dates: 10/10/2013

-111612014 Nuclide Activity mR/Std Qtr 14.5 Sample Point 24 [ INDICATOR

-NW @ 4.6 miles]Sample ID: 114980 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.54E+01 Sample ID: 262709 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 16.0 Sample ID: 272318 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 16.0 Sample ID: 281090 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 15.1 TLD RING TLDOUTER Sample Point 25 [ INDICATOR

-NNW @ 4 miles] TLD RING TLDOUTER Sample ID: 114981 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.34E+01 Sample ID: 262710 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.1 Sample ID: 272319 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 12.8 Sample ID: 281091 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 13.3 Sample Point 26 [INDICATOR

-N @ 5 miles] TLD RING TLDOUTER Sample ID: 114982 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.32E+01 Sample ID: 262711 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.1 Sample ID: 272320 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 13.0 Sample ID: 281092 Sample Dates: 10/10/2013-1/16/2014 Nuclide Activity mR/Std Qtr 13.1 Sample Point 27 [ INDICATOR

-NNE @ 5.4 miles] TLD RING TLDOUTER Sample ID: 262712 Sample Dates: 4117/2013

-7/312013 Nuclide Activity mR/Std Qtr 11.1 Sample ID: 272321 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 11.8 Sample ID: 281093 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 10.7 Sample Point 28 [ INDICATOR

-NE @ 4.3 miles ] TLD RING TLDOUTER Sample ID: 262713 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 17.0 Sample ID: 272322 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 18.1 Sample ID: 281094 Sample Dates: 10/10/2013-1/16/2014 Nuclide Activity mR/Std Qtr 16.6 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 -EnRad Laboratories Duke Energy Annual Report -Appendix E E <) 13339 Hagers Ferry Road.Huntersville, North Carolina 28078 Appendix E -Page 109 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point 29 [ INDICATOR

-ENE @ 4 miles ] TLD RING TLDOUTER Sample ID: 114983 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.20E+01 Sample ID: 262714 Sample Dates: 4117/2013

-713/2013 Nuclide Activity mR/Std Qtr 10.5 Sample ID: 272323 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 10.6 Sample ID: 281095 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 10.2 ___Sample Point 30 [ INDICATOR

-E @ 4.4 miles ] TLD RING TLD_OUTER Sample ID: 114984 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.38E+01 Sample ID: 262715 Sample Dates: 4117/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.8 Sample ID: 272324 Sample Dates: 7/312013 -10/10/2013 Nuclide Activity mR/Std Qtr 13.5 Sample ID: 281096 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 13.9 Sample Point 31 [ INDICATOR

-ESE @ 4.6 miles] TLD RING TLDOUTER Sample ID: 114985 Sample Dates: 2/15/2013

-2/16/2013 Nuclide Activity mR/Std Qtr 1.52E+01 Sample ID: 262716 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.0 Sample ID: 272325 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 15.5 Sample ID: 281097 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 13.2 Sample Point 32 [ INDICATOR

-SE @ 4 miles] TLD RING TLDOUTER Sample ID: 114986 Sample Dates: 2/16/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.22E+01 Sample ID: 262717 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 12.7 Sample ID: 272326 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 12.2 Sample ID: 281098 Sample Dates: 10/1012013

-1/16/2014 Nuclide Activity mR/Std Qtr 11.9 Sample Point 33 [ INDICATOR

-SSE @ 4.5 miles ] TLD RING TLDOUTER Sample ID: 114987 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.34E+01 Sample ID: 262718 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.7 Sample ID: 272327 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 13.1 Sample ID: 281099 Sample Dates: 10/10/2013

-1116/2014 Nuclide Activity mR/Std Qtr 13.6 Sample Point 34 [ INDICATOR

-S @ 4.7 miles ] TLD RING TLDOUTER Sample ID: 114988 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 9.90E+00 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Duke Energy Annual Report -Appendix E [g 13339 Hagers Ferry Road" -Huntersville, North Carolina 28078 Appendix E -Page 110 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: TLD Concentration (Activity):

mRJStandard Quarter Sample Point 34 [ INDICATOR

-S @ 4.7 miles ] TLD RING TLDOUTER Sample ID: 262719 Sample Dates: 411712013

-71312013 Nuclide Activity mR/Std Qtr 10.3 Sample ID: 272328 Sample Dates: 713/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 10.2 Sample ID: 281100 Sample Dates: 10/10/2013

-111612014 Nuclide Activity mR/Std Qtr 9.8 Sample Point 35 [ INDICATOR

-SSW @ 4.5 miles ] TLD RING TLDOUTER Sample ID: 114989 Sample Dates: 2/16/2013

-211/12013 Nuclide Activity mR/Std Qtr 1.91E+01 Sample ID: 262720 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 19.4 Sample ID: 272329 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 19.3 Sample ID: 281101 Sample Dates: 1011012013

-1/16/2014 Nuclide Activity mR/Std Qtr 26.9 Sample Point 36 [ INDICATOR

-SW @ 5 miles] TLD RING TLDOUTER Sample ID: 114990 Sample Dates: 2/15/2013

-2116/2013 Nuclide Activity mR/Std Qtr 1.84E+01 Sample ID: 262721 Sample Dates: 4/17/2013

-713/2013 Nuclide Activity mR/Std Qtr 18.1 Sample ID: 272330 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 19.3 Sample ID: 281102 Sample Dates: 10/1012013

-1/16/2014 Nuclide Activity mR/Std Qtr 17.5 Sample Point 37 [ INDICATOR

-WSW @ 5 miles ] TLD RING TLDOUTER Sample ID: 114991 Sample Dates: 2/15/2013

-2/16/2013 Nuclide Activity mR/Std Qtr 1.93E+01 Sample ID: 262722 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 18.1 Sample ID: 272331 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 19.3 Sample ID: 281103 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 18.7 Sample Point 38 [ INDICATOR

-W @ 4.9 miles] TLD RING TLDOUTER Sample ID: 114992 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.39E+01 Sample ID: 262723 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 15.0 Sample ID: 272332 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.2 Sample ID: 281104 Sample Dates: 10110/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 14.9 Sample Point 39 [ INDICATOR

-WNW @ 5.1 miles ] TLD RING TLDOUTER Sample ID: 114993 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.39E+01 Sample ID: 262724 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 13.7 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 EnRad Laboratories Appendix E -Page 111 of 120 Duke Energy Annual Report -Appendix E En .) 13339 Hagers Ferry Road"- Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: TLD Concentration (Activity):

mR/Standard Quarter Sample Point 39 [ INDICATOR

-WNW @ 5.1 miles ] TILD RING TLDOUTER Sample ID: 272333 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 13.5 Sample ID: 281105 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 13.3 Sample Point 55 [ INDICATOR

-SSE @ 0.2 miles ] TLD RING TLDINNER Sample ID: 114994 Sample Dates: 2115/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.44E+01 Sample ID: 262726 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 14.5 Sample ID: 272334 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 14.5 Sample ID: 281106 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 14.0 Sample Point 56 [ INDICATOR

-NNW @ 0.4 miles] TLD RING TLD_INNER Sample ID: 114996 Sample Dates: 2/16/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.57E+01 Sample ID: 262726 Sample Dates: 4/17/2013

-713/2013 Nuclide Activity mR/Std Qtr 14.9 Sample ID: 272335 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 15.0 Sample ID: 281107 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 14.3 Sample Point 61 [ INDICATOR

-WSW @ 0.3 miles] TLD RING TLDINNER Sample ID: 114996 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.70E+01 Sample ID: 262727 Sample Dates: 4/17/2013

-7/3/2013 Nuclide Activity mR/Std Qtr 17.4 Sample ID: 272336 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 16.9 Sample ID: 281108 Sample Dates: 10/10/2013

-1/16/2014 Nuclide Activity mR/Std Qtr 16.6 Sample Point 65 [ INDICATOR

-WNW @ 0.3 miles ] TLD RING TLD INNER Sample ID: 114997 Sample Dates: 2/15/2013

-2/15/2013 Nuclide Activity mR/Std Qtr 1.68E+01 Sample ID: 262728 Sample Dates: 4/17/2013

-713/2013 Nuclide Activity mR/Std Qtr 16.5 Sample ID: 272337 Sample Dates: 7/3/2013 -10/10/2013 Nuclide Activity mR/Std Qtr 16.4 Sample ID: 281109 Sample Dates: 10/10/2013-1/16/2014 Nuclide Activity mR/Std Qtr 16.2 Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 50 [ INDICATOR

-SSE @ 0 miles ]Sample ID: 258273 Sample Dates: 5/14/2013

-6/14/2013 Nuclide Activity Sigma Error (1) LLD Subtype: W.ILDCHERRY 1-131 <5.40E+01 O.OOE+00 5.40E+01 Cs-134 <3.48E+01 O.OOE+00 3.48E+01 Cs-137 <3.51E+01 o.OoE+00 3.51E+01 Be-7 3.26E+02 1.27E+02 2.90E+02 K-40 3.10E+03 3.26E+02 3.14E+02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34;.._

EnRad Laboratories Appendix E -Page 112 of 120 Duke Energy Annual Report -Appendix E En l 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 50 [ INDICATOR

-SSE @ 0 miles ]Sample ID: 258274 Sample Dates: 5/14/2013

-5/14/2013 Nuclide Activity 1-131 <5.43E+01 Cs-134 <3.06E+01 Cs-137 <3.81E+01 Be-7 1.10E+03 K-40 5.47E+03 Nuclide Activity Sample ID: 258275 Sample Dates: 5/14/2013

-511412013 Sigma Error(1) LLD O.OOE+00 5.43E+01 0.OOE+00 3.06E+01 0.OOE+00 3.81E+01 1.77E+02 2.92E+02 4.29E+02 3.67E+02 Sigma Error(1) LLD O.OOE+00 1.76E+01 0.00E+00 1.10E+01 7.54E+00 1.08E+01 5.75E+01 9.63E+01 1.72E+02 1.19E+02 Subtype: WAXMYRTLE Subtype: SASSAFRAS 1-131 Cs-134 Cs-137 Be-7 K-40<1.76E+01<1.10E+01 4.88E+01 4.04E+02 3.95E+03 Sample ID: 260460 Sample Dates: 6/12/2013

-6/12/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Activity<3.46E+01<2.01E+01<2.17E+01 8.74E+02 4.10E+03 Sigma Error (1)0.OOE+00 0.OOE+00 0.OOE+00 1.15E+02 2.76E+02 LLD Subtype: WAXMYRTLE 3.46E+01 2.01E+01 2.17E+01 1.91E+02 1.87E+02 Sample ID: 260461 Sample Dates: 6/12/2013

-6/12/2013 Sample ID: 260462 Sample Dates: 6/12/2013

-6/12/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.72E+01 0.00E+00 3.72E+01 Cs-1 34 <2.09E+01 0.OOE+00 2.09E+01 Cs-1 37 <2.94E+01 0.00E+00 2.94E+01 Be-7 1.78E+02 9.28E+01 1-54E+02 K-40 3.23E+03 2.43E+02 4.93E+01 Nuclide Activity Sigma Error (1) LLD 1-131 <3.52E+01 0.00E+00 3.52E+01 Cs-1 34 <1.97E+01 0.00E+00 1.97E+01 Cs-137 5.50E+01 1.14E+01 1.55E+01 Be-7 7.44E+02 1.09E+02 1.83E+02 K-40 3.72E+03 2.71E+02 5.35E+01 Subtype: WILDCHERRY Subtype: SASSAFRAS Sample ID: 263016 Sample Dates: 7/10/2013

-7/10/2013 Sample ID: 263017 Sample Dates: 7/10/2013

-7/10/2013 Sample ID: 263018 Sample Dates: 7/10/2013

-7/10/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Nuclide Activity Sigma Error (1)<2.98E+01 0.OOE+00<2.12E+01 0.00E+00<2.95E+01 0.OOE+00 1.50E+03 1.66E+02 3.55E+03 2.79E+02 Activity Sigma Error (1)LLD Subtype: WAXMYRTLE 2.98E+01 2.12E+01 2.95E+01 1.66E+02 1.99E+02 LLD Subtype: WILDCHERRY 2.58E+01 1.69E+01 2.53E+01 1.38E+02 2.03E+02 1-131 <2.58E+01 0.00E+00 Cs-134 <1.69E+01 0.00E+00 Cs-137 <2.53E+01 0.OOE+00 Be-7 1.59E+03 1.16E+02 K-40 2.80E+03 1.98E+02 Nuclide Activity Sigma Error (1)1-131 <1.93E+01 0.00E+00 Cs-134 <1.19E+01 0.00E+00 Cs-1 37 4.68E+01 8.62E+00 Be-7 3.13E+03 1.30E+02 K-40 2.59E+03 1.64E+02 LLD 1.93E+01 1.19E+01 1.25E+01 1.14E+02 1.13E+02 Sample ID: 265360 Sample Dates: 8/6/2013 -8/6/2013 Sample ID: 265361 Sample Dates: 8/6/2013 -8/612013 Nuclide Activity Sigma Error (1) LLD 1-131 <2.16E+01 0.00E+00 2.16E+01 Cs-134 <1.51E+01 0.00E+00 1.51E+01 Cs-137 <1.76E+01 0.00E+00 1.76E+01 Be-7 9.65E+02 1.01E+02 1.32E+02 K-40 2.17E+03 1.88E+02 1.69E+02 Nuclide Activity Sigma Error (1) LLD 1-131 <9.99E+00 0.00E+00 9.99E+00 Cs-134 <6.07E+00 0.00E+00 6.07E+00 Cs-137 3.78E+01 4.67E+00 6.20E+00 Be-7 2.60E+03 6.93E+01 5.36E+01 K-40 2.85E+03 1.08E+02 6.54E+01 Subtype: SASSAFRAS Subtype: WAXMYRTLE Subtype: SASSAFRAS (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories E l ID 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 Appendix E -Page 113 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 50 [ INDICATOR

-SSE @ 0 miles ]Sample ID: 265362 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity 1-131 <3.81E+01 Cs-134 <2.10E+01 Cs-137 <2.14E+01 Be-7 1.09E+03 K-40 3.59E+03 Nuclide Activity Sample ID: 270806 Sample Dates: 9/11/2013

-9/11/2013 Sigma Error(1) LLD 0.00E+00 3.81 E+01 0.00E+00 2.10E+01 0.00E+00 2.14E+01 1.39E+02 1.87E+02 3.13E+02 2.83E+02 Sigma Error(11 LLD 0.00E+00 2.27E+01 0.00E+00 1.31E+01 7.98E+00 1.32E+01 8.66E+01 1.30E+02 1.63E+02 1.34E+02 Sample ID: 270807 Sample ID: 270808 1-131 <2.27E+01 Cs-134 <1.31E+01 Cs-137 2.48E+01 Be-7 6.76E+02 K-40 2.49E+03 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity 1-131 <1.90E+01 Cs-1 34 <1.02E+01 Cs-1 37 6.79E+01 Be-7 1.47E+03 K-40 3.28E+03 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity Subtype: WLDCHERRY Subtype: WAXMYRTLE Subtype: SASSAFRAS Subtype: WILDCHERRY Sigma Error(1)0.00E+00 0.00E+00 8.09E+00 8.89E+01 1.47E+02 Sigma Error(1)0.OOE+00 0.OOE+00 0.OOE+00 0.00E+00 LLD 1.90E+01 1.02E+01 1.07E+01 8.52E+01 9.69E+01 LLD 4.55E+01 2.10E+01 4.07E+01 3.49E+02 1-131 Cs-134 Cs-137 Be-7 K-40<4.55E+01<2.10E+01<4.07E+01<3.49E+02 3.26E+03 3.36E+02 3.62E+02 Sample Point 51 [ INDICATOR

-SSW @ 0 miles]Sample ID: 258277 Sample Dates: 6/14/2013

-6/14/2013 Sample ID: 258278 Sample Dates: 6/14/2013

-6114/2013 Sample ID: 258279 Sample Dates: 5/14/2013

-5/14/2013 Sample ID: 260463 Sample Dates: 6/12/2013

-6/12/2013 Activity<4.28E+01<2.86E+01<3.50E+01 5.32E+02 3.22E+03 Sigma Error 11 0.00E+00 0.00E+00 0.00E+00 1.18E+02 3.66E+02 LLD 4.28E+01 2.86E+01 3.50E+01 2.22E+02 4.48E+02 Subtype: WILDCHERRY Nuclide Activity Sigma Error (1) LLD 1-131 <2.76E+01 0.00E+00 2.76E+01 Cs-134 <1.51E+01 0.OOE+00 1.51E+01 Cs-137 <1.76E+01 0.OOE+00 1.76E+01 Be-7 8.32E+02 1.04E+02 1.46E+02 K-40 3.03E+03 2.42E+02 2.21 E+02 Nuclide Activity Sigma Error(1) LLD 1-131 <4.06E+01 0.00E+00 4.06E+01 Cs-1 34 <3.05E+01 0.00E+00 3.05E+01 Cs-1 37 <2.93E+01 0.OOE+00 2.93E+01 Be-7 4.71E+02 1.15E+02 2.65E+02 K-40 3.12E+03 3.74E+02 4.11E+02 Nuclide Activity Sigma Error (1) LLD 1-131 <5.24E+01 0.00E+00 5.24E+01 Cs-1 34 <2.60E+01 0.00E+00 2.60E+01 Cs-1 37 <3.66E+01 0.00E+00 3.66E+01 Be-7 1.26E+03 1.88E+02 2.58E+02 K-40 2.37E+03 3.08E+02 2.54E+02 Subtype: WAXMYRTLE Subtype: SASSAFRAS Subtype: WAXMYRTLE Subtype: WILDCHERRY Sample ID: 260464 Sample Dates: 6/12/2013

-6/12/2013 Nuclide Activity 1-131 <3.88E+01 Cs-134 <1.95E+01 Cs-137 <2.62E+01 Be-7 2.32E+02 Sigma Error(1)0.OOE+00 0.00E+00 0.OOE+00 9.35E+01 LLD 3.88E+01 1.95E+01 2.62E+01 1.58E+02 K-40 3.86E+03 2.52E+02 Sample ID: 260466 Sample Dates: 6/12/2013-6/12/2013 Nuclide Activity Sigma Error (1)1-131 <4.30E+01 0.00E+00 Cs-134 <2.12E+01 0.OOE+00 Cs-1 37 3.85E+01 9.28E+00 Be-7 7.60E+02 1.47E+02 1.71E+02 LLD Subtype: SASSAFRAS 4.30E+01 2.12E+01 2.17E+01 2.06E+02 (1) Analysis results generated by Hams Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories 1E0 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 114 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 51 [ INDICATOR

-SSW @ 0 miles ]Sample ID: 260465 Sample Dates: 6/12/2013

-6/12/2013 Nuclide Activity Sigma Error (1) LLD K-40 3.85E+03 3.16E+02 2.52E+02 Sample ID: 263019 Sample Dates: 7/10/2013

-7/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <4.39E+01 0.00E+00 4.39E+01 Cs-1 34 <2.55E+01 0.00E+00 2.55E+01 Cs-1 37 <3.33E+01 0.OOE+00 3.33E+01 Be-7 1.72E+03 2.01 E+02 2.49E+02 K-40 4.09E+03 3.62E+02 3.82E+02 Sample ID: 263021 Sample Dates: 7/10/2013

-7/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <3.33E+01 0.00E+00 3.33E+01 Cs-134 <2.28E+01 0.00E+00 2.28E+01 Cs-1 37 <2.76E+01 0.00E+00 2.76E+01 Be-7 3.35E+02 1.03E+02 2.18E+02 K-40 2.42E+03 2.83E+02 3.09E+02 Sample ID: 263022 Sample Dates: 7110/2013

-7/10/2013 Nuclide Activity Sigma Error (1) LLD 1-131 <1.50E+01 0.00E+00 1.50E+01 Cs-134 <9.11E+00 0.00E+00 9.11E+00 Cs-137 7.72E+01 7.02E+00 9.60E+00 Be-7 9.51E+02 7.27E+01 9.07E+01 K-40 3.44E+03 1.45E+02 1.06E+02 Sample ID: 265363 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity Sigma Error (1) LID 1-131 <3.08E+01 0.OOE+00 3.08E+01 Cs-1 34 <1.65E+01 0.00E+00 1.65E+01 Cs-1 37 <2.37E+01 0.00E+00 2.37E+01 Be-7 2.22E+03 1.35E+02 1.55E+02 K-40 2.70E+03 2.25E+02 2.02E+02 Subtype: SASSAFRAS Subtype: WAXMYRTLE Subtype: WILDCHERRY Subtype: SASSAFRAS Subtype: WAXMYRTLE Sample ID: 265364 Sample Dates: 8/6/2013 -8/6/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Activity<1.25E+01<7.46E+00 5.14E+01 1.62E+03 2.48E+03 Sigma Error 1 1 0.00E+00 0.OOE+00 5.18E+00 6.14E+01 9.67E+01 LLD Subtype: SASSAFRAS 1.25E+01 7.46E+00 8.08E+00 6.72E+01 7.12E+01 LLD Subtype: WILDCHERRY Sample ID: 266366 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity Sigma Error(1)1-131 <2.72E+01 0.00E+00 Cs-1 34 <2.29E+01 0.00E+00 Cs-137 <2.16E+01 0.00E+00 Be-7 7.59E+02 1.26E+02 K-40 2.24E+03 2.47E+02 Sample ID: 270809 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity Sigma Error(1)1-131 <3.69E+01 0.00E+00 Cs-134 <1.79E+01 0.00E+00 Cs-1 37 <2.88E+01 0.00E+00 Be-7 1.20E+03 1.23E+02 2.72E+01 2.29E+01 2.16E+01 1.63E+02 1.73E+02 LLD 3.69E+01 1.79E+01 2.88E+01 1.71E+02 Subtype: WAXMYRTLE Subtype: SASSAFRAS Subtype: WlLDCHERRY Sample ID: 270810 Sample Dates: 9/11/2013

-9/11/2013 K-40 2.64E+03 2.40E+02 2.16E+02 Nuclide Activity Sigma Error (1) LLD 1-131 <1.74E+01 0.00E+00 1.74E+01 Cs-134 <1.01E+01 0.00E+00 1.01E+01 Cs-137 4.38E+01 8.94E+00 1.16E+01 Be-7 1.52E+03 9.21E+01 8.85E+01 K-40 2.75E+03 1.53E+02 1.31E+02 Sample ID: 270811 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity Sigma Error (1)1-131 <3.48E+01 0.00E+00 Cs-134 <1.67E+01 0.00E+00 Cs-1 37 <2.59E+01 0.00E+00 Be-7 3.96E+02 9.39E+01 K-40 5.36E+03 3.22E+02 LLD 3.48E+01 1.67E+01 2.59E+01 1.90E+02 2.84E+02 Sample Point 52 [ CONTROL -W @ 10 miles]Sample ID: 268280 Sample Dates: 5/14/2013

-5114/2013 Nuclide Activity 1-131 <3.00E+01 Cs-1 34 <1.92E+01 Sigma Error(1)0.00E+00 0.00E+00 LLD 3.00E+01 1.92E+01 Subtype: WILDCHERRY (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories

[fl , 13339 Hagers Ferry Road-Huntersville, North Carolina 28078 Appendix E -Page 115 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 52 [ CONTROL -W @ 10 miles ]Sample ID: 258280 Sample Dates: 5/14/2013

-5/14/2013 Nuclide Activity Cs-137 <2.50E+01 Be-7 5.95E+02 K-40 3.52E+03 Sample ID: 258281 Sample Dates: 511412013

-611412013 Nuclide Activity 1-131 <2.01E+01 Cs-134 <1.14E+01 Cs-137 3.12E+01 Be-7 4.39E+02 K-40 2.74E+03 Sample ID: 258282 Sample Dates: 511412013

-511412013 Nuclide Activity Sigma Error (1) LLD 0.00E+00 2.50E+01 1.10E+02 1.62E+02 2.57E+02 1.95E+02 Sigma Error (1) LLD O.OOE+00 2.01E+01 0.OOE+00 1.14E+01 8.03E+00 1.42E+01 7.62E+01 8.77E+01 1.83E+02 1.36E+02 Sigma Error t 1 1 LLD 0.OOE+00 3.34E+01 O.OOE+00 1.52E+01 9.95E+00 1.92E+01 8.38E+01 1.66E+02 2.56E+02 2.11 E+02 Subtype: WILDCHERRY Subtype: WAXMYRTLE Subtype: SASSAFRAS Sample ID: 260466 1-131 <3.34E+01 Cs-1 34 <1.52E+01 Cs-1 37 3.65E+01 Be-7 4.67E+02 K-40 4.22E+03 Sample Dates: 6/12/2013

-611212013 Nuclide Activity 1-131 <4.56E+01 Cs-1 34 <2.62E+01 Cs-1 37 <4.08E+01 Be-7 4.21 E+02 K-40 2.78E+03 Sigma Error 1)0.OOE+00 O.OOE+00 0.OOE+00 1.33E+02 2.92E+02 LLD 4.56E+01 2.62E+01 4.08E+01 2.37E+02 4.27E+02 Subtype: WAXMYRTLE Sample ID: 260467 Sample Dates: 6112/2013

-6/12/2013 Nuclide Activity Sigma Error (1) LLD Subtype 1-131 <4.79E+01 0.OOE+00 4.79E+01 Cs-134 <2.13E+01 0.OOE+00 2.13E+01 Cs-137 2.43E+01 1.15E+01 2.60E+01 Be-7 2.73E+02 1.14E+02 1.72E+02 K-40 4.13E+03 2.96E+02 1.98E+02 Sample ID: 260468 Sample Dates: 611212013

-6/12/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WILDCHERRY

SASSAFRAS 1-131 <4.81E+01 Cs-134 <9.68E+00 Cs-137 5.23E+01 Be-7 5.86E+02 K-40 3.27E+03 Sample ID: 263023 Sample Dates: 711012013

-7110/2013 Nuclide Activity 1-131 <3.96E+01 Cs-1 34 <2.63E+01 Cs-137 <3.85E+01 Be-7 1.18E+03 K-40 3.52E+03 0.OOE+00 0.00E+00 6.19E+00 5.83E+01 1.36E+02 Sigma Error (1)0.OOE+00 0.OOE+00 0.OOE+00 1.64E+02 2.82E+02 4.81E+01 9.68E+00 9.24E+00 1.06 E+02 1. 11 E+02 LLD Subty 3.96E+01 2.63E+01 3.85E+01 2.42E+02 2.52E+02 ype: WAXMYRTLE Sample ID: 263024 Sample Dates: 7110/2013

-7110/2013 Nuclide Activity 1-131 Cs-1 34 Cs-137 Be-7 K-40<2.19E+01<1.42E+01 4.48E+01 1.05E+03 3.92E+03 Sigma Error (1)0.OOE+00 0:00E+00 7.61 E+00 1.07E+02 2.23E+02 LLD 2.19E+01 1.42E+01 1.58E+01 1.36E+02 2.11E+02 Subtype: WlLDCHERRY Subtype: SASSAFRAS Sample ID: 263026 Sample Dates: 7110/2013

-7110/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 K-40 Sample ID: 265366 Sample Dates: 8/6/2013 -81612013 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Activity<2.58E+01<1.05E+01 1.62E+02 1.94E+03 2.54E+03 Activity<3.75E+01<2.27E+01<2.28E+01 6.16E+02 1.77E+03 Sigma Error(1)0.OOE+00 O.OOE+00 8.63E+00 8.00E+01 1.24E+02 LLD 2.58E+01 1.05E+01 1.07E+01 9.02E+01 1.02E+02 Sigma Error (1)0.OOE+00 0.OOE+00 0.OOE+00 9.OOE+01 2.30E+02 LLD 3.75E+01 2.27E+01 2.28E+01 1.51E+02 2.85E+02 Subtype: WAXMYRTLE Subtype: SASSAFRAS Sample ID: 265367 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity 1-131 <2.74E+01 Sigma Error(1) LLD 0.OOE+00 2.74E+01 (1) Analysis results generated by Hats Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories.n .13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 116 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 52 [ CONTROL -W @ 10 miles ]Sample ID: 265367 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Cs-134 Cs-137 Be-7 K-40 Nuclide Sample ID: Sample Dates: 8/6/2013 -8/6/2013 265368 Activity Sigma Error (1)<1.58E+01 0.OOE+00<2.56E+01 0.OOE+00 8.57E+02 9.68E+01 1.86E+03 2.18E+02 Activity Sigma Error (1)<1.08E+01 0.OOE+00<5.75E+00 O.OOE+00 3.82E+01 3.66E+00 8.50E+02 4.90E+01 3.21E+03 1.08E+02 LLD 1.58E+01 2.56E+01 1.71E+02 2.OOE+02 LLD 1.08E+01 5.75E+00 5.63E+00 5.11E+01 6.75E+01 Subtype: SASSAFRAS Subtype: WlLDCHERRY Sample ID: 270812 Sample ID: 270813 1-131 Cs-134 Cs-137 Be-7 K-40 Sample Dates: 9/11/2013

-9/11/2013 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Sample Dates: 9/1112013

-9/11/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WAXMYRTLE<1.71E+01 0.00E+00 1.71E+01<8.17E+00 0.OOE+00 8.17E+00<9.64E+00 0.00E+00 9.64E+00 1.07E+03 6.04E+01 8.55E+01 2.46E+03 1.14E+02 8.12E+01 Activity Sigma Error (1) LLD Subtype: SASSAFRAS 1-131 CS-134 Cs-1 37 Be-7 K-40<1.87E+01<9.31 E+00 3.54E+01 2.48E+03 2.04E+03 0.00E+00 0.00E+00 7.10E+00 9.79E+01 1.27E+02 1.87E+01 9.31E+00 1.04E+01 1.06E+02 1.47E+02 Sample ID: 270814 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity Sigma Error(1) LLD Subtype: WILDCHERRY 1-131 <2.31E+01 0.OOE+00 2.31E+01 Cs-134 <1.88E+01 0.00E+00 1.88E+01 Cs-137 <1.80E+01 0.00E+00 1.80E+01 Be-7 2.40E+03 1.35E+02 1.41 E+02 K-40 3.26E+03 2.21 E+02 1.82E+02 Sample Point 62 [ INDICATOR

-SE @ 0 miles ]Sample ID: 258283 Sample Dates: 5/14/2013-5/14/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WILDCHERRY 1-131 <3.76E+01 0.00E+00 3.76E+01 Cs-134 <2.12E+01 0.00E+00 2.12E+01 Cs-137 2.61E+01 1.14E+01 2.14E+01 Be-7 5.99E+02 1.01E+02 1.87E+02 K-40 <9.27E+02 0.OOE+00 9.27E+02 Sample ID: 258284 Sample Dates: 5/14/2013-5/14/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WAXMYRTLE 1-131 <2.67E+01 0.00E+00 2.67E+01 Cs-134 <1.57E+01 0.00E+00 1.57E+01 Cs-137 <2.14E+01 0.00E+00 2.14E+01 Be-7 8.25E+02 8.43E+01 1.13E+02 K-40 2.65E+03 2.22E+02 1.75E+02 Sample ID: 258285 Sample Dates: 5/14/2013

-5/14/2013 Nuclide Activity Sigma Error (1) LLD Subtype: SASSAFRAS 1-131 <2.12E+01 0.OOE+00 2.12E+01 Cs-134 <1.29E+01 0.00E+00 1.29E+01 Cs-137 1.13E+02 1.14E+01 1.17E+01 Be-7 6.45E+02 8.21E+01 1.01E+02 K-40 3.30E+03 1.74E+02 1.39E+02 Sample ID: 260469 Sample Dates: 6112/2013-6/12/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WAXMYRTLE 1-131 <4.59E+01 0.OOE+00 4.59E+01 Cs-1 34 <1.98E+01 0.00E+00 1.98E+01 Cs-137 3.73E+01 1.04E+01 2.48E+01 Be-7 8.78E+02 1.02E+02 2.15E+02 K-40 3.50E+03 2.62E+02 1.45E+02 Sample ID: 260470 Sample Dates: 611212013

-6/12/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WMLDCHERRY 1-131 <3.34E+01 0.00E+00 3.34E+01 Cs-1 34 <2.55E+01 0.00E+00 2.55E+01 Cs-1 37 <3.43E+01 0.00E+00 3.43E+01 Be-7 4.91E+02 1.25E+02 2.22E+02 K-40 3.30E+03 2.85E+02 1.80E+02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display I sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories"E 13339 Hagers Ferry Road S- Huntersville, North Carolina 28078 Appendix E -Page 117 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 62 [ INDICATOR

-SE @ 0 miles ]Sample ID: 260471 Sample Dates: 6/12/2013

-6/1212013 Nuclide Activity Sigma Error (1)1-131 <5.17E+01 0.OOE+00 Cs-134 <2.57E+01 0.OOE+00 Cs-1 37 4.30E+01 1.62E+01 Be-7 1.32E+03 1.38E+02 K-40 3.37E+03 3.48E+02 Nuclide Activity Sigma Error (1)Sample ID: 263026 Sample Dates: 7/10/2013

-7/10/2013 LLD 5.17E+01 2.57E+01 2.68E+01 1.78E+02 3.57E+02 LLD 4.16E+01 1.79E+01 1.56E+01 1.50E+02 1.89E+02 1-131 Cs-1 34 Cs-137 Be-7 K-40<4.16E+01<1.79E+01 1.72E+01 1.84E+03 3.06E+03 0.00E+00 0.00E+00 9.15E+00 1.20E+02 2.05E+02 Subtype: SASSAFRAS Subtype: WAXMYRTLE Subtype: WILDCHERRY Subtype: SASSAFRAS Sample ID: 263027 Sample Dates: 7/10/2013

-7/10/2013 Nuclide 1-131 Cs-134 Cs-137 Be-7 K-40 Activity<3.62E+01<2.07E+01<2.84E+01 1.16E+03 3.85E+03 Sigma Error(1)0.OOE+00 0.OOE+00 0.00E+00 1.36E+02 3.25E+02 LLD 3.62E+01 2.07E+01 2.84E+01 1.82E+02 2.81 E+02 Sample ID: 263028 Sample Dates: 7/10/2013

-7/10/2013 Nuclide Activity Sigma Error (1)1-131 <1.84E+01 0.0OE+00 Cs-1 34 <1.07E+01 0.00E+00 Cs-1 37 3.62E+01 7.26E+00 Be-7 1.69E+03 8.61E+01 K-40 3.38E+03 1.42E+02 LLD 1.84E+01 1.07E+01 1.16E+01 1.0 1E+02 1.2 1E+02 Sample ID: 265369 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity 1-131 <3.48E+01 Cs-134 <1.72E+01 Cs-137 <2.80E+01 Be-7 1.16E+03 K-40 2.53E+03 Sigma Error(1)0.00E+00 0.00E+00 0.OOE+00 1.48E+02 2.68E+02 Sample ID: 265370 LLD 3.48E+01 1.72E+01 2.80E+01 2.07E+02 3.54E+02 LLD 1.43E+01 5.85E+00 6.98E+00 6.77E+01 7.64E+01 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity 1-131 <1.43E+01 Cs-1 34 <5.85E+00 Cs-1 37 3.39E+01 Be-7 2.29E+03 K-40 2.47E+03 Sigma Error(1)0.OOE+00 0.OOE+00 3.85E+00 6.72E+01 9.44E+01 Subtype: WAXMYRTLE Subtype: SASSAFRAS Subtype: WlLDCHERRY Sample ID: 265371 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity Sigma Error (1)1-131 <2.22E+01 0.00E+00 Cs-1 34 <1.92E+01 0.OOE+00 Cs-137 <2.17E+01 0.00E+00 Be-7 9.36E+02 1.38E+02 K-40 3.09E+03 2.83E+02 Sample ID: 270816 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity Sigma Error (1)1-131 <3.50E+01 0.OOE+00 Cs-134 <2.22E+01 0.OOE+00 Cs-137 <2.27E+01 0.OOE+00 Be-7 1.22E+03 1.57E+02 K-40 3.15E+03 2.42E+02 LLD 2.22E+01 1.92E+01 2.17E+01 1.52E+02 2.17E+02 LLD 3.50E+01 2.22E+01 2.27E+01 2.07E+02 1.96E+02 LLD 3.16E+01 2.06E+01 4.30E+01 2.03E+02 3.30E+02 LLD 2.71E+01 1.97E+01 2.09E+01 1.45E+02 Sample ID: 270816 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity 1-131 <3.16E+01 Cs-1 34 <2.06E+01 Cs-1 37 <4.30E+01 Be-7 1.66E+03 K-40 3.91E+03 Sample ID: 270817 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity Sigma Error(1)0.00E+00 0.00E+00 0.00E+00 1.85E+02 3.78E+02 Sigma Error(1)0.OOE+00 0.00E+00 0.OOE+00 8.89E+01 Subtype: WAXMYRTLE Subtype: SASSAFRAS Subtype: WILDCHERRY 1-131 Cs-134 Cs-137 Be-7<2.71E+01<1.97E+01<2.09E+01 4.86E+02 K-40 3.72E+03 2.61 E+02 2.59E+02 (1) Anslysis results genersted by Harnis Energy and Environmental Center display 2 sigma srour: results genersted by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories"E 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 118 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 67 [ INDICATOR

-S @ 0 miles ]Sample ID: 268286 Sample Dates: 5/1412013

-5/14/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WILDCHERRY 1-131 <2.69E+01 0.00E+00 Cs-134 <1.32E+01 0.00E+00 Cs-1 37 5.56E+01 7.57E+00 Be-7 2.40E+02 6.89E+01 K-40 2.73E+03 1.81 E+02 Sample ID: 258287 Sample Dates: 5/14/2013

-5/14/2013 Nuclide Activity Sigma Error 1-131 <5.74E+01 0.00E+00 Cs-1 34 <2.27E+01 0.00E+00 Cs-1 37 <3.35E+01 O.OOE+00 Be-7 1.65E+03 2.21E+02 K-40 1.96E+03 2.69E+02 Sample ID: 258288 Sample Dates: 5/14/2013

-5/14/2013 Nuclide Activity Sigma Error 2.69E+01 1.32E+01 1.39E+01 1.20E+02 9.16E+01 1) LLD 5.74E+01 2.27E+01 3.35E+01 2.78E+02 4.28E+02 Subtype: WAXMYRTLE (1) LLD Subtype: SASSAFRAS 1-131 <3.69E+01 0.00E+00 3.69E+01 Cs-1 34 <1.89E+01 0.00E+00 1.89E+01 Cs-1 37 1.85E+02 1.68E+01 2.40E+01 Be-7 7.56E+02 1.27E+02 1.82E+02 K-40 4.12E+03 2.86E+02 2.26E+02 Sample ID: 260472 Sample D ates: 6/12/2013

-6/12/2013 Nuclide Activity Sigma Error(1 1-131 <3.37E+01 0.00E+00 Cs-134 <1.59E+01 0.00E+00 Cs-137 2.08E+01 7.71E+00 Be-7 5.51E+02 1.21E+02 K-40 1.36E+03 1.95E+02 Sample ID: 260473 Sample Dates: 6/12/2013

-6/12/2013 LLD Subtype: WAXMYRTLE 3.37E+01 1.59E+01 1.91E+01 1.62E+02 2.02E+02 ____LLD Subtype: WLDCHERRY 2.67E+01 1.80E+01 2.04E+01 1.57E+02 2.43E+02 Nuclide Activity 1-131 <2.67E+01 Cs-134 <1.80E+01 Cs-1 37 5.28E+01 Be-7 4.84E+02 K-40 2.57E+03 Sigma Error(1 0.00E+00 0.00E+00 1.10E+01 1.09E+02 2.23E+02 Sample ID: 260474 Sample Dates: 6/12/2013

-6/12/2013 Sample ID: 263029 Sample Dates: 7/10/2013

-7/10/2013 Nuclide Activity Sigma Error (1) LLD Subtype: SASSAFRAS 1-131 <3.63E+01 0.00E+00 3.63E+01 Cs-134 <2.21E+01 0.00E+00 2.21E+01 Cs-1 37 <2.78E+01 0.00E+00 2.78E+01 Be-7 5.85E+02 1.46E+02 2.09E+02 K-40 4.12E+03 2.87E+02 1.44E+02 Nuclide Activity Sigma Error (1) LLD Subtype: WAXMYRTLE 1-131 <3.88E+01 0.00E+00 3.88E+01 Cs-1 34 <2.30E+01 0.00E+00 2.30E+01 Cs-137 2.66E+01 1.01E+01 3.06E+01 Be-7 6.26E+02 1.59E+02 2.34E+02 K-40 1.37E+03 2.34E+02 3.10E+02 Sample ID: 263030 Sample Dates: 7/10/2013

-7/10/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WILDCHERRY 1-131 <1.30E+01 0.00E+00 1.30E+01 Cs-134 <7.91E+00 0.00E+00 7.91E+00 Cs-137 4.71E+01 5.53E+00 9.15E+00 Be-7 9.28E+02 5.88E+01 7.39E+01 K-40 2.45E+03 1.11E+02 9.34E+01 Sample ID: 263031 Sample Dates: 7/10/2013

-7/10/2013 Nuclide Activity Sigma Error (1) LLD Subtype: SASSAFRAS 1-131 <2.26E+01 0.00E+00 2.26E+01 Cs-134 <1.22E+01 0.00E+00 1.22E+01 Cs-137 3.66E+01 7.54E+00 1.22E+01 Be-7 1.90E+03 1.08E+02 1.13E+02 K-40 1.93E+03 1.68E+02 1.54E+02 Sample ID: 265372 Sample Dates: 8/6/2013 -816/2013 Nuclide Activity Sigma Error (1) LLD Subtype: WAXMYRTLE 1-131 <4.42E+01 0.00E+00 4.42E+01 Cs-134 <2.63E+01 0.00E+00 2.63E+01 Cs-137 <3.28E+01 0.00E+00 3.28E+01 Be-7 2.30E+03 1.94E+02 2.48E+02 K-40 2.71 E+03 3.05E+02 3.98E+02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error: results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E nD EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 119 of 120 H. B. Robinson Radiological Environmental Monitoring Analysis Report -2013 (Appendix E)Media Type: VEGETATION Concentration (Activity):

pCi/kg Sample Point 67 [ INDICATOR

-S @ 0 miles ]Sample ID: 265373 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity 1-131 <1.44E+01 Cs-134 <9.36E+00 Cs-137 3.08E+01 Be-7 1.73E+03 K-40 2.67E+03 Sample ID: 265374 Sample Dates: 8/6/2013 -8/6/2013 Nuclide Activity 1-131 <3.49E+01 Cs-1 34 <1.71 E+0-1 Cs-137 <2.40E+01 Be-7 5.75E+02 K-40 3.22E+03 Sample ID: 270818 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity 1-131 <3.90E+01 Cs-1 34 <2.21E+01 Cs-1 37 <3.00E+01 Be-7 4.41E+02 K-40 3.67E+03 Sample ID: 270819 Sample Dates: 9/11/2013

-9/11/2013 Nuclide Activity 1-131 <2.19E+01 Cs-1 34 <9.82E+00 Cs-137 2.66E+01 Be-7 1.13E+03 Sigma Error (1)0.00E+00 0.OOE+00 6.77E+00 8.89E+01 1.42E+02 Sigma Error (1)0.00E+00 0.00E+00 0.00E+00 9.86E+01 2.72E+02 Sigma Error (1)0.00E+00 0.00E+00 0.00E+00 1.04E+02 3.46E+02 LLD 1.44E+01 9.36E+00 9.38E+00 7.50E+01 9.33E+01 LLD 3.49E+01 1.71 E+01 2.40E+01 1.77E+02 3.31E+02 LLD 3.90E+01 2.21 E+01 3.00E+01 1.94E+02 3.26E+02 Subtype: SASSAFRAS Subtype: VWlLDCHERRY Subtype: WAXMYRTLE Sigma Error(1 0.OOE+00 0.OOE+00 6.08E+00 5.81E+01 K-40 Sample ID: 270820 Sample Dates: 9/11/2013

-9/11/2013 Nuclide 1-131 Cs-1 34 Cs-1 37 Be-7 4.32E+03 1.50E+02 -Activity Sigma Error (1)<2.18E0+ 0.000+00<8.19E+00 0.OOE+00 1.70E+01 7.45E+00 6.61 E+02 5.18E+01 LLD Subtype: SASSAFRAS 2.19E+01 9.82E+00 1.10E+01 8.97E+01 8.97E+01 LLD Subtype: WILDCHERRY 2.18E+01 8.19E+00 1.04E+01 7.55E+01 7.82E+01 K-40 4.59E+03 1.42E+02 (1) Analysis results generated by Harris Energy and Environmental Center display 2 sigma error; results generated by EnRad Laboratory display 1 sigma error.Report Generated

@ 4/14/2014 06:52:34 Duke Energy Annual Report -Appendix E EnRad Laboratories Efl .13339 Hagers Ferry Road Huntersville, North Carolina 28078 Appendix E -Page 120 of 120 APPENDIX F ERRATA TO PREVIOUS REPORTS Appendix F -Page I APPENDIX F ERRATA TO THE 2013 AREOR There are no errata to be appended to the 2013 AREOR.Appendix F -Page 2

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