Text

2014 Annual Radiological Environmental Operating Report
	ML15141A151
Person / Time
Site:	Catawba
Issue date:	05/14/2015
From:	Henderson K; Duke Energy Carolinas
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
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ML15141A154	List: CNS-15-048, Transmittal of 2014 Annual Radiological Environmental Operating Report; ML15141A151;
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ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT DUKE ENERGY CORPORATION CATAWBA NUCLEAR STATION Units 1 and 2 2014

i TABLE OF CONTENTS 1.0 Executive Summary.

1-1 2.0 Introduction 2-1 2.1 Site Description and Sample Locations 2-1 2.2 Scope and Requirements of the REMP 2-1 2.3 Statistical and Calculational Methodology.

2-2 2.3.1 Estimation of the Mean Value.

2-2 2.3.2 Lower Level of Detection and Minimum Detectable Activity 2-3 2.3.3 Trend Identification.

2-3 3.0 Interpretation of Results.

3-1 3.1 Airborne Radioiodine and Particulates 3-2 3.2 Drinking Water.

3-5 3.3 Surface Water.

3-7 3.4 Ground Water.

3-10 3.5 Milk.

3-11 3.6 Broadleaf Vegetation.

3-13 3.7 Food Products.

3-15 3.8 Fish.

3-16 3.9 Shoreline Sediment.

3-19 3.10 Direct Gamma Radiation.

3-23 3.10.1 Environmental TLD 3-23 3.10.2 ISFSI 3-24 3.11 Land Use Census 3-28 4.0 Evaluation of Dose.

4-1 4.1 Dose from Environmental Measurements.

4-1 4.2 Estimated Dose from Releases.

4-1 4.3 Comparison of Doses.

4-2 5.0 Quality Assurance 5-1 5.1 Sample Collection 5-1 5.2 Sample Analysis 5-1 5.3 Dosimetry Analysis.

5-1 5.4 Laboratory Equipment Quality Assurance.

5-1 5.4.1 Daily Quality Control 5-1 5.4.2 Calibration Verification.

5-1 5.4.3 Batch Processing 5-1 5.5 Duke Energy Interlaboratory Comparison Program 5-1 5.5.1 Duke Energy Intercomparison Program 5-2 5.5.2 Eckert & Ziegler Analytics Cross Check Program 5-2 5.5.3 ERA Proficiency Testing.

5-2 5.6 Duke Energy Audits.

5-3 5.7 U.S. Nuclear Regulatory Commission Inspections 5-3 5.8 Intercomparison Program.

5-3 5.9 TLD Intercomparison Program.

5-3 5.9.1 Nuclear Technology Services Intercomparison Program 5-3 5.9.2 Internal Crosscheck (Duke Energy).

5-3 Appendices Appendix A: Environmental Sampling and Analysis Procedures A-1

ii I.

Change of Sampling Procedures A-2 II. Description of Analysis Procedures.

A-2 III. Change of Analysis Procedures.

A-3 IV. Sampling and Analysis Procedures A-3 A.1 Airborne Particulate and Radioiodine A-3 A.2 Drinking Water A-4 A.3 Surface Water A-4 A.4 Ground Water.

A-4 A.5 Milk A-4 A.6 Broadleaf Vegetation A-5 A.7 Food Products.

A-5 A.8 Fish A-5 A.9 Shoreline Sediment.

A-5 A.10 Direct Gamma Radiation (TLD)

A-6 A.11 Annual Land Use Census A-6 V.

Global Positioning System (GPS) Analysis.

A-6 Appendix B: Radiological Env. Monitoring Program - Summary of Results B-1 Air Particulate.

B-2 Air Radioiodine.

B-2 Drinking Water.

B-2 Surface Water.

B-2 Ground Water.

B-3 Milk.

B-3 Broadleaf Vegetation B-3 Food Products.

B-3 Fish.

B-3 Shoreline Sediment.

B-3 Direct Gamma Radiation (TLD)

B-4 Appendix C: Catawba Nuclear Station Sampling Deviations and Unavailable Analyses C-1 C.1 Sampling Deviations C-2 C.2 Unavailable Analyses C-2 Appendix D: Catawba Nuclear Station Analytical Deviations.

D-1 Appendix E: Radiological Environmental Monitoring Program Results E-1 Appendix F: Errata to Previous Reports F-1 LIST OF FIGURES 2.1-1 Sampling Locations Map (One Mile Radius) 2-4 2.1-2 Sampling Locations Map (Ten Mile Radius) 2-5 3.1 Concentration of Gross Beta in Air Particulate.

3-2 3.2 Concentration of Tritium in Drinking Water 3-5 3.3 Concentration of Tritium in Surface Water.

3-8 3.6 Concentration of Cs-137 in Broadleaf Vegetation 3-13 3.8-1 Concentration of Co-58 in Fish.

3-16 3.8-2 Concentration of Co-60 in Fish.

3-17 3.8-3 Concentration of Cs-137 in Fish.

3-17 3.9-1 Concentration of Co-58 in Shoreline Sediment.

3-20 3.9-2 Concentration of Co-60 in Shoreline Sediment.

3-20 3.9-3 Concentration of Cs-137 in Shoreline Sediment.

3-21 3.10 Direct Gamma Radiation (TLD) Results 3-24 3.11 2014 Land Use Census Map 3-29

iii LIST OF TABLES 2.1-A Radiological Monitoring Program Sampling Locations 2-6 2.1-B Radiological Monitoring Program Sampling Locations (TLD Sites) 2-7 2.2-A Reporting Levels for Radioactivity Concentrations in Environmental Samples 2-8 2.2-B REMP Analysis Frequency 2-8 2.2-C Maximum Values for the Lower Limits of Detection.

2-9 3.1-A Mean Concentration of Gross Beta in Air Particulate.

3-3 3.1-B Mean Concentration of Air Radioiodine (I-131).

3-4 3.2 Mean Concentrations of Radionuclides in Drinking Water.

3-6 3.3 Mean Concentrations of Radionuclides in Surface Water.

3-9 3.5 Mean Concentration of Radionuclides in Milk.

3-12 3.6 Mean Concentration of Radionuclides in Broadleaf Vegetation.

3-14 3.7 Mean Concentration of Radionuclides in Food Products 3-15 3.8 Mean Concentrations of Radionuclides in Fish.

3-18 3.9 Mean Concentrations of Radionuclides in Shoreline Sediment.

3-22 3.10-A Direct Gamma Radiation (TLD) Results 3-25 3.10-B Direct Gamma Radiation (TLD) Catawba 2014 Investigation Level 3-26 3.11 Land Use Census Results.

3-28 4.1-A Catawba Nuclear Station 2014 Environmental and Effluent Dose Comparison 4-3 4.1-B Maximum Individual Dose for 2014 based on Environmental Measurements (mrem) for Catawba Nuclear Station.

4-5 5.0-A Duke Energy Interlaboratory Comparison Program.

5-5 5.0-B Eckert & Ziegler Analytics Cross Check Program 5-7 5.0-C Environmental Resource Associates (ERA) Proficiency Testing.

5-9 5.0-D 2014 Environmental Dosimeter Cross-Check Results.

5-10 LIST OF ACRONYMS USED IN THIS TEXT (in alphabetical order)

BW BiWeekly C

Control CNS Catawba Nuclear Station ERA Environmental Resource Associates GI-LLI Gastrointestinal - Lower Large Intestine GPS Global Positioning System ISFSI Independent Spent Fuel Storage Installation 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 Offsite Dose Calculation Manual pCi/kg picocurie per kilogram pCi/l picocurie per liter pCi/m3 picocurie per cubic meter PIP Problem Investigation Program Q

Quarterly REMP Radiological Environmental Monitoring Program SA Semiannually SLCs Selected Licensee Commitments SM Semimonthly TECH SPECs Technical Specifications TLD Thermoluminescent Dosimeter

µCi/ml microcurie per milliliter UFSAR Updated Final Safety Analysis Report W

Weekly

Section 1 - Page 1 1.0 EXECUTIVE

SUMMARY

This Annual Radiological Environmental Operating Report describes the Catawba Nuclear Station Radiological Environmental Monitoring Program (REMP), and the program results for the calendar year 2014.

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

Sampling activities were conducted as prescribed by Selected Licensee Commitments (SLCs). One-thousand forty-two samples were analyzed comprising 1,068 test results in order to compile data for the 2014 report. Based on the annual land use census, the current number of sampling sites for Catawba Nuclear Station is sufficient.

Concentrations observed in the environment in 2014 for station related radionuclides were generally within the ranges of concentrations observed in the past. Inspection of data showed that radioactivity concentrations in drinking water, surface water, broadleaf vegetation, fish, and shoreline sediment are higher than the activities reported for samples collected prior to the operation of the station. Measured concentrations were not higher than expected and all positively identified measurements attributable to station operation were within limits as specified in SLCs.

Additionally, environmental radiological monitoring data is consistent with effluents introduced into the environment by plant operations. The total body dose estimated to the maximum exposed member of the public as calculated by environmental sampling data, excluding TLD results, was 6.24E-2 mrem for 2014. Background radiation dose in the United States is approximately 620 mrem per year (approximately half from naturally occurring sources such as radon and half from man-made sources such as medical processes).1 It is therefore concluded that station operations has had no significant radiological impact on the health and safety of the public or the environment.

1NCRP (2009). National Council on Radiation Protection and Measurements. Ionizing Radiation Exposure of the Population of the United States, NCRP Report No. 160 (National Council on Radiation Protection and Measurements, Bethesda, Maryland).

Section 2 - Page 1

2.0 INTRODUCTION

2.1 SITE DESCRIPTION AND SAMPLE LOCATIONS Duke Energy Corporation's Catawba Nuclear Station is a two-unit facility located on the shore of Lake Wylie in York County, South Carolina. Each of the two essentially identical units employs a pressurized water reactor nuclear steam supply system furnished by Westinghouse Electric Corporation. Each generating unit is designed to produce a net electrical output of approximately 1145 MWe. Units 1 and 2 achieved initial criticality on January 7, 1985, and May 8, 1986, respectively.

Condenser cooling is accomplished utilizing a closed system incorporating cooling towers, instead of using lake water directly. Liquid effluents are released into Lake Wylie via the station discharge canal and are not accompanied by the large additional dilution water flow associated with once-through condenser cooling. This design results in greater radionuclide concentrations in the discharge canal given comparable liquid effluent source terms.

Figures 2.1-1 and 2.1-2 are maps depicting the 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. Figure 2.1-1 comprises all sample locations within a one mile radius of CNS. Figure 2.1-2 comprises all sample locations within a 10 mile radius of CNS.

2.2 SCOPE AND REQUIREMENTS OF THE REMP An environmental monitoring program has been in effect at Catawba Nuclear Station since 1981, four years prior to operation of Unit 1 in 1985. 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 Selected Licensee Commitments Manual, with regard to sample media, sampling locations, sampling frequency and analytical sensitivity requirements. Indicator and control locations were established for comparison purposes to distinguish radioactivity of station 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 Catawba Nuclear Station. This program satisfies the requirements of Section IV.B.2 of Appendix I to 10CFR50 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.

Section 2 - Page 2 The Annual Land Use Census, required by Selected Licensee Commitments, 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 10CFR50. Results are shown in Table 3.11.

Participation in an interlaboratory comparison program as required by Selected Licensee Commitments 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 10CFR50. A summary of the results obtained as part of this comparison program are in Section 5 of this annual report.

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:

x

=

N N

i ix

=1 Where:

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

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

Section 2 - Page 3 2.3.2 LOWER LEVEL OF DETECTION AND MINIMUM DETECTABLE ACTIVITY The Lower Level of Detection (LLD), and Minimum Detectable Activity (MDA) are used throughout the REMP.

LLD - The LLD, as defined in the Selected Licensee Commitments Manual is 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 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" LLDs for each sample medium and selected radionuclides are given in the Selected Licensee Commitments and are listed in Table 2.2-C.

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

2.3.3 TREND IDENTIFICATION One of the purposes of an environmental monitoring program is to determine if there is a buildup of radionuclides in the environment due to the operation of the nuclear station.

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

Substantial increases or decreases in the amount of a particular radionuclide's release from the nuclear plant will greatly affect the resulting environmental levels; therefore, a knowledge of the release of a radionuclide from the nuclear plant is necessary to completely interpret the trends, or lack of trends, determined from the environmental data. Factors that may affect environmental levels of radionuclides include prevailing weather conditions (periods of drought, solar cycles or heavier than normal precipitation),

construction in or around either the nuclear plant or the sampling location, and addition or deletion of other sources of radioactive materials (such as the Chernobyl accident).

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

Section 2 - Page 5 Figure 2.1-2

Section 2 - Page 6 TABLE 2.1-A CATAWBA RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS Table 2.1-A Codes W

Weekly SM Semimonthly BW BiWeekly Q

Quarterly M

Monthly SA Semiannually C

Control I

Indicator Site Measure Type Location Description*

Air Rad. &

Part.

Surface Water Drinking Water Shoreline Sediment Food Products (a)

Fish Milk Broad Leaf Veg. (b)

Ground Water 200 I

Site Boundary (0.63 mi NNE)

W M

201 I

Site Boundary (0.53 mi NE)

W M

208 I

Discharge Canal (0.45 mi S)

W M

SA SA 210 I

Ebenezer Access (2.31 mi SE)

SA 211 I

Wylie Dam (4.06 mi ESE)

M 212 I

Tega Cay (3.32 mi E)

W 214 I

Rock Hill Water Supply (7.30 mi SSE)

M 215 C

River Pointe - Hwy 49 (4.21 mi NNE)

M SA 216 C

Hwy 49 Bridge (4.19 mi NNE)

SA 218 C

Belmont Water Supply (13.5 mi NNE)

M 221 C

Dairy (14.5 mi NW)

SM 222 I

Site Boundary (0.70 mi N)

M 226 I

Site Boundary (0.48 mi S)

M 254 I

Residence (0.82 mi N)

Q 258 C

Fairhope Road (9.84 mi W)

W M

260 I

Irrigated Gardens (2.00 mi SSE)

M(a) 261 I

Firing Range-Site Boundary (0.72 mi N)

W (a) During Harvest Season (b) When Available

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 CATAWBA RADIOLOGICAL MONITORING PROGRAM SAMPLING LOCATIONS (TLD SITES)

Table 2.1-B Codes IR Inner Ring OR Outer Ring C

Control SI Special Interest Site Measure Type Location*

Distance (miles)

Sector Site Measure Type Location*

Distance (miles)

Sector 200 IR SITE BOUNDARY 0.63 NNE 234 OR WELLS FARGO BANK 4.50 E

201 IR SITE BOUNDARY 0.53 NE 235 OR LAKE WYLIE DAM 4.07 ESE 203 IR SITE BOUNDARY 0.38 ESE 236 OR SC WILDLIFE FEDERATION OFFICE 4.25 SE 204 IR SITE BOUNDARY 0.48 SSW 237 OR TWIN LAKES ROAD AND HOMESTEAD ROAD 4.75 SSE 205 IR SITE BOUNDARY 0.25 SW 238 OR PENNINGTON ROAD AND WEST OAK ROAD 4.02 S

206 IR SITE BOUNDARY 0.67 WNW 239 OR CARTER LUMBER COMPANY 4.49 SSW 207 IR SITE BOUNDARY 0.95 NNW 240 OR PARAHAM ROAD 4.07 SW 212 SI TEGA CAY AIR SITE 3.32 E

241 OR CAMPBELL ROAD 4.58 WSW 217 C

BLACKMON ROAD 10.3 SSE 242 OR TRANSMISSION TOWER ON PARAHAM ROAD 4.56 W

222 IR SITE BOUNDARY 0.71 N

243 OR KINGSBURRY ROAD 4.39 WNW 223 IR SITE BOUNDARY 0.57 E

244 OR BETHEL ELEMENTARY SCHOOL 4.02 NW 225 IR SITE BOUNDARY 0.68 SE 245 OR CROWDERS CREEK BOAT LANDING 4.01 NNW 226 IR SITE BOUNDARY 0.48 S

246 SI CAROWINDS GUARD HOUSE 7.87 ENE 227 IR SITE BOUNDARY 0.52 WSW 247 C

FORT MILL 7.33 ESE 228 IR SITE BOUNDARY 0.61 W

248 SI PIEDMONT MEDICAL CENTER 6.54 S

229 IR SITE BOUNDARY 0.84 NW 249 SI YORK COUNTY OPERATIONS CENTER 7.17 S

230 OR RIVER HILLS CHURCH 4.37 N

250 SI YORK DUKE ENERGY OFFICE 10.4 WSW 231 OR RIVER HILLS FRONT ENTRANCE 4.21 NNE 251 C

CLOVER 9.72 WNW 232 OR PLEASANT HILL ROAD 4.18 NE 255 IR SITE BOUNDARY 0.61 ENE 233 OR ZOAR ROAD AND THOMAS DRIVE 3.95 ENE 256 IR SITE BOUNDARY 0.58 SSE 258 SI FAIRHOPE ROAD 9.84 W

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 8 TABLE 2.2-A REPORTING LEVELS FOR RADIOACTIVITY CONCENTRATIONS IN ENVIRONMENTAL SAMPLES Analysis Water (pCi/liter)

Air Particulates or Gases (pCi/m3)

Fish (pCi/kg-wet)

Milk (pCi/liter)

Food Products (pCi/kg-wet)

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

Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Zr-Nb-95 400 I-131 2

0.9 3

100 Cs-134 30 10 1,000 60 1,000 Cs-137 50 20 2,000 70 2,000 Ba-La-140 200 300 (a) If no drinking water pathway exists, a value of 30,000 pCi/liter may be used.

(b) H-3 Reporting level not applicable to surface water TABLE 2.2-B REMP ANALYSIS FREQUENCY Sample Medium Analysis Schedule Gamma Isotopic Tritium Low Level I-131 Gross Beta TLD Air Radioiodine Weekly X

Air Particulate Weekly X

X Quarterly Composite X

Direct Radiation Quarterly X

Surface Monthly Composite X

Water Quarterly Composite X

Drinking Monthly Composite X

(a)

X Water Quarterly Composite X

Ground Water Quarterly X

X Shoreline Sediment Semiannually X

Milk Semimonthly X

X Fish Semiannually X

Broadleaf Vegetation Monthly(b)

X Food Products Monthly(b)

X (a) Low-level I-131 analysis will be performed if the dose calculated for the consumption of drinking water is

> 1 mrem per year. An LLD of 1 pCi/liter will be required for this analysis.

(b) When Available

Section 2 - Page 9 TABLE 2.2-C MAXIMUM VALUES FOR THE LOWER LIMIT OF DETECTION Analysis Water (pCi/liter)

Air Particulates or Gases (pCi/m3)

Fish (pCi/kg-wet)

Milk (pCi/liter)

Food Products (pCi/kg-wet)

Sediment (pCi/kg-dry)

Gross Beta 4

0.01 H-3 2000 (a)

Mn-54 15 130 Fe-59 30 260 Co-58, 60 15 130 Zn-65 30 260 Zr-Nb-95 15 I-131 1(b) 0.07 1

60 Cs-134 15 0.05 130 15 60 150 Cs-137 18 0.06 150 18 80 180 Ba-La-140 15 15 (a) If no drinking water pathway exists, a value of 3,000 pCi/liter may be used.

(b) If no drinking water pathway exists, the LLD of gamma isotopic analysis may be used.

Section 3 - Page 1 3.0 INTERPRETATION OF RESULTS Review of all 2014 REMP analysis results was performed to identify changes in environmental levels as a result of station operations. The following section depicts and explains the review of these results. Sample data for 2014 was compared to preoperational and historical data. Over the years of operation, analysis and collection changes have taken place that do not allow direct comparisons for some data collected from 1984 (preoperational) through 2014. Summary tables containing 2014 information required by Technical Specification Administrative Control 5.6.2 are located in Appendix B. REMP results for 2014 are located in Appendix E.

Evaluation for significant trends was performed for radionuclides that are listed as required within Selected Licensee Commitments 16.11-13. The radionuclides include: H-3, Mn-54, Fe-59, Co-58, Co-60, Zn-65, Zr-95, Nb-95, I-131, Cs-134, Cs-137, Ba-140 and La-140.

Gross beta analysis results were trended for drinking water and gross beta trending for air particulates was initiated in 1996. Other radionuclides detected that are the result of plant operation, but not required for reporting, are trended.

A comparison of annual mean concentrations of effluent-based detected radionuclides to historical results provided trending bases. Frequency of detection and concentrations related to SLC reporting levels (Table 2.2-A) were used as criteria for trending conclusions. All 2014 maximum percentages of reporting levels attributed to CNS operation were well below the 100% action level.

Selected Licensee Commitment section 16.11-13 addresses actions to be taken if radionuclides other than those required are detected in samples collected. The occurrences of these radionuclides are the result of CNS liquid effluents which contained the radionuclides.

During 1984-1986, all net activity results (sample minus background), both positive and negative were included in calculation of sample mean. A change in the EnRad gamma spectroscopy system on September 1, 1987, decreased the number of measurements yielding detectable low-level activity for indicator and control location samples. It was thought that the method used by the previous system was vulnerable to false-positive results.

All 2014 sample analysis results were reviewed to detect and identify any significant trends.

Tables and graphs are used throughout this section to display data from effluent-based radionuclides identified since the system change in late 1987. All negative concentration values were replaced with zero for calculation purposes. Any zero concentrations used in tables or graphs represent activity measurements less than detectable levels.

Review of all 2014 data presented in this section supports the conclusion that there were no significant changes in environmental sample radionuclide concentrations of samples collected and analyzed from CNS site and surrounding areas that were attributable to plant operations.

Section 3 - Page 2 There is no reporting level for gross beta in air particulate 3.1 AIRBORNE RADIOIODINE AND PARTICULATES In 2014, 312 radioiodine and particulate samples were analyzed, 260 from five indicator locations and 52 at the control location. Particulate samples were analyzed weekly for gross beta. A quarterly gamma analysis was performed on the quarterly filter composite (by location).

Radioiodine samples received a weekly gamma analysis.

Figure 3.1 shows individual sample gross beta results for the indicator location with highest annual mean and the control location samples during 2014. The two sample locations results are similar in concentration and have varied negligibly since preoperational periods.

There were no detectable gamma emitters identified for particulate filters analyzed during 2014. Table 3.1-A shows the highest indicator annual mean and control location annual mean for gross beta in air particulate.

There was no detectable I-131 in air radioiodine samples analyzed in 2014. Table 3.1-B shows the highest indicator annual mean and control location annual mean for I-131 since 1984 (preoperational period). The table shows similar concentrations for both the indicator and control locations and the activities decreasing from early in the operational history of the plant. No I-131 activity due to CNS plant operations has been detected since 1987.

K-40 and Be-7 that occur naturally were routinely detected in charcoal cartridges collected during the year.

Figure 3.1 0.00E+00 1.00E-02 2.00E-02 3.00E-02 4.00E-02 5.00E-02 6.00E-02 7.00E-02 8.00E-02 9.00E-02 1.00E-01 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Gross Beta in Air Particulate Indicator Location Control Location pCi/m3

Section 3 - Page 3 Table 3.1-A Mean Concentration of Gross Beta in Air Particulate Year Indicator Location (pCi/m3)

Control Location (pCi/m3) 1984 2.25E-2 1.82E-2 1985 2.12E-2 1.53E-2 1986 3.62E-2 3.41E-2 1987 2.67E-2 2.32E-2 1988 2.29E-2 2.30E-2 1989 2.11E-2 2.13E-2 1990 2.39E-2 2.72E-2 1991 2.19E-2 2.51E-2 1992 1.90E-2 2.01E-2 1993 1.87E-2 1.94E-2 1994 2.03E-2 2.03E-2 1995 4.88E-2 3.23E-2 1996 3.49E-2 2.60E-2 1997 2.83E-2 2.28E-2 1998 2.69E-2 2.12E-2 1999 2.53E-2 2.04E-2 2000 2.28E-2 1.86E-2 2001 1.76E-2 1.78E-2 2002 1.60E-2 1.57E-2 2003 1.54E-2 1.42E-2 2004 1.65E-2 1.49E-2 2005 1.66E-2 1.68E-2 2006 1.74E-2 1.74E-2 2007 1.88E-2 1.86E-2 2008 1.80E-2 1.90E-2 2009 1.78E-2 1.72E-2 2010 2.03E-2 1.90E-2 2011 1.98E-2 1.92E-2 2012 2.09E-2 1.97E-2 2013 1.92E-2 1.82E-2 Average (2004 - 2013) 1.82E-2 1.76E-2 2014 1.99E-2 1.81E-2

Section 3 - Page 4 Table 3.1-B Mean Concentration of Air Radioiodine (I-131)

Year Indicator Location (pCi/m3)

Control Location (pCi/m3) 1984 1.30E-3 1.46E-2 1985 4.75E-3 2.38E-2 1986 1.43E-2 1.02E-2 1987 1.38E-2 0.00E0 1988 0.00E0 0.00E0 1989 0.00E0 0.00E0 1990 0.00E0 0.00E0 1991 0.00E0 0.00E0 1992 0.00E0 0.00E0 1993 0.00E0 0.00E0 1994 0.00E0 0.00E0 1995 0.00E0 0.00E0 1996 0.00E0 0.00E0 1997 0.00E0 0.00E0 1998 0.00E0 0.00E0 1999 0.00E0 0.00E0 2000 0.00E0 0.00E0 2001 0.00E0 0.00E0 2002 0.00E0 0.00E0 2003 0.00E0 0.00E0 2004 0.00E0 0.00E0 2005 0.00E0 0.00E0 2006 0.00E0 0.00E0 2007 0.00E0 0.00E0 2008 0.00E0 0.00E0 2009 0.00E0 0.00E0 2010 0.00E0 0.00E0 2011(1) 5.53E-2 5.65E-2 2012 0.00E0 0.00E0 2013 0.00E0 0.00E0 2014 0.00E0 0.00E0 0.00E0 indicates no detectable measurements (1) 2011 concentration affected by Fukushima Daiichi

Section 3 - Page 5 3.2 DRINKING WATER Gross beta and gamma spectroscopy were performed on 26 drinking water samples. The samples were composited to create 8 quarterly samples that were analyzed for tritium. One indicator location was sampled, along with one control location.

No gamma emitting radionuclides attributable to plant operations were identified in 2014 drinking water samples. There have been no gamma emitting radionuclides identified in drinking water samples since 1988.

Table 3.2 shows highest annual mean gross beta concentrations for the indicator location and control location since preoperation. The indicator location (downstream of the plant effluent release point) average concentration was 1.96 pCi/l in 2014 and the control location concentration was 1.79 pCi/l. The table shows that current gross beta levels are not statistically different from preoperational concentrations.

Tritium was detected in the four indicator samples and in the four control samples during 2014. The mean indicator tritium concentration for 2014 was 821 pCi/l, 4.11% of reporting level. The mean control tritium concentration for 2014 was 437 pCi/l, 2.19% of reporting level. Figure 3.2 and Table 3.2 display the highest indicator and control location annual mean concentrations for tritium since 1984.

The concentration of tritium in drinking water is affected by releases from the Catawba plant and the McGuire Nuclear Station, located approximately 40 miles upstream of the Catawba plant on the Catawba River.

The dose for consumption of water was less than one mrem per year, historically and for 2014; therefore low-level iodine analysis is not required.

Figure 3.2 0

500 1000 1500 2000 2500 3000 3500 4000 4500 5000 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Tritium in Drinking Water Indicator Location Control Location 20% Reporting Level pCi/liter

Section 3 - Page 6 Table 3.2 Mean Concentration of Radionuclides in Drinking Water Gross Beta (pCi/l)

Tritium (pCi/l)

YEAR Indicator Location Control Location Indicator Location Control Location 1984 4.72 1.83 3.10E-2 3.10E-2 1985 2.70 2.24 4.13E2 4.00E2 1986 3.11 2.26 7.23E2 7.33E2 1987 3.10 2.40 7.80E2 4.80E2 1988 3.60 2.60 6.64E2 0.00E0 1989 3.60 2.90 8.91E2 5.72E2 1990 4.50 3.20 7.03E2 0.00E0 1991 3.70 2.20 7.04E2 0.00E0 1992 3.20 2.40 7.65E2 5.38E2 1993 3.50 2.50 7.06E2 0.00E0 1994 3.30 2.70 0.00E0 0.00E0 1995 4.80 4.50 4.28E2 2.21E2 1996 3.08 3.14 3.71E2 3.27E2 1997 3.74 3.15 3.54E2 2.28E2 1998 2.51 2.44 5.07E2 1.83E2 1999 3.55 2.48 6.71E2 2.70E2 2000 3.04 2.27 5.87E2 3.26E2 2001 3.49 2.30 8.66E2 4.50E2 2002 3.44 2.36 1.22E3 4.11E2 2003 2.27 2.02 6.36E2 2.88E2 2004 1.88 1.69 5.47E2 2.54E2 2005 2.05 1.84 7.69E2 4.50E2 2006 2.30 2.17 1.59E3 7.70E2 2007 2.34 2.21 1.65E3 9.18E2 2008 2.81 2.16 1.25E3 9.16E2 2009 2.07 1.99 6.34E2 6.81E2 2010 1.84 1.80 7.05E2 4.27E2 2011 2.01 1.71 9.73E2 6.36E2 2012 1.89 1.84 9.54E2 5.02E2 2013 1.79 1.59 6.22E2 6.64E2 2014 1.96 1.79 8.21E2 4.37E2 0.00E0 indicates detectable measurements 1984 - 1986 mean based on all net activity

Section 3 - Page 7 3.3 SURFACE WATER A total of 39 monthly surface water samples were analyzed for gamma emitting radionuclides. The samples were composited to create 12 quarterly samples for tritium analysis. Two indicator locations and one control location were sampled. One indicator location (208) is located near the liquid effluent discharge point.

All 2014 indicator location samples contained tritium with an average concentration of 4,220 pCi/l. Indicator Location 208 (Discharge Canal) showed a range of activities from 3,430 to 16,100 pCi/l which had the highest mean concentration of 7,785 pCi/l. Tritium was detected in three of the four control samples during 2014 with an average concentration of 418 pCi/l.

Gamma spectroscopy analysis detected Co-58 and Co-60 in two indicator samples during 2014 (PIP G-14-02220, PIP G-14-02408). Co-58 was detected at location 208 with a mean concentration of 7.23 pCi/l which represents 0.72% of the reporting level and Co-60 was detected at location 208 with a mean concentration of 4.69 pCi/l which represents 1.56% of the reporting level. Table 3.3 summarizes the indicator annual means of radionuclides detected since 1984. Visual inspection of the tabular data did not reveal any increasing trends.

During the third quarter of 2014, Catawba experienced higher than normal levels of mixed fission and activation products in the liquid radioactive waste processing system due to process influent stream chemical changes and larger than normal volumes of non-contaminated water introduced into the system. As system tanks reached storage capacity, liquid radioactive waste was discharged with higher than normal concentrations of mixed fission and activation products. Other radionuclides, such as tritium, were not impacted by this operational occurrence. Concentrations observed did not challenge the effluent concentration limits described in 10CFR20 or Selected Licensee Commitments (SLCs).

Resulting dose to a member of the public from additional mixed fission and activation products discharged in liquid effluents also did not challenge limits described in 10CFR20, 10CFR50, 40CFR190, or SLCs. (PIP C-14-06334)

Figure 3.3 displays the highest indicator and control annual means for tritium since 1984.

Table 3.3 lists the highest indicator annual means.

The concentration of tritium in surface water is affected by releases from the Catawba plant and the McGuire Nuclear Station, located approximately 40 miles upstream of the Catawba plant on the Catawba River.

Section 3 - Page 8 Figure 3.3 0

5000 10000 15000 20000 25000 30000 35000 40000 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Tritium in Surface Water Indicator Location Control Location pCi/liter There is no reporting level for tritium in surface water, however, if no drinking water pathway exists, a value of 30,000 pCi/l may be used. A drinking water pathway exists for Catawba Nuclear Station, so this limit does not apply for surface water. See section 3.2 for drinking water results.

Section 3 - Page 9 Table 3.3 Mean Concentrations of Radionuclides in Surface Water (pCi/l)

YEAR Co-58 Co-60 Nb-95 Cs-137 H-3 Indicator H-3 Control 1984 4.59E-1 5.71E-1 6.48E-1 9.08E-1 3.35E2 3.18E2 1985 3.46E0 4.83E-2 2.70E0 8.19E-1 1.19E3 5.05E2 1986 3.10E-1

-4.12E-2 2.05E0 4.85E-1 2.34E3 5.05E2 1987(1) 0.00E0 3.10E0 4.30E0 9.90E0 4.17E3 6.20E2 1988 9.20E0 0.00E0 0.00E0 0.00E0 6.03E3 6.07E2 1989 0.00E0 0.00E0 0.00E0 0.00E0 5.27E3 0.00E0 1990 6.50E0 0.00E0 0.00E0 0.00E0 3.98E3 7.73E2 1991 0.00E0 0.00E0 0.00E0 0.00E0 4.87E3 0.00E0 1992 0.00E0 0.00E0 0.00E0 0.00E0 6.91E3 6.64E2 1993 4.70E0 1.80E0 0.00E0 0.00E0 5.98E3 0.00E0 1994 0.00E0 0.00E0 0.00E0 0.00E0 8.42E3 0.00E0 1995 0.00E0 0.00E0 0.00E0 0.00E0 5.13E3 2.89E2 1996 0.00E0 0.00E0 0.00E0 0.00E0 7.36E3 2.61E2 1997 0.00E0 0.00E0 0.00E0 0.00E0 7.77E3 2.20E2 1998 0.00E0 0.00E0 0.00E0 0.00E0 6.61E3 0.00E0 1999 0.00E0 0.00E0 0.00E0 0.00E0 8.13E3 2.41E2 2000 0.00E0 0.00E0 0.00E0 0.00E0 7.19E3 2.56E2 2001 0.00E0 0.00E0 0.00E0 0.00E0 7.13E3 3.28E2 2002 0.00E0 0.00E0 0.00E0 0.00E0 1.00E4 3.80E2 2003 0.00E0 0.00E0 0.00E0 0.00E0 1.31E4 2.37E2 2004 0.00E0 0.00E0 0.00E0 0.00E0 9.43E3 2.60E2 2005 0.00E0 0.00E0 0.00E0 0.00E0 1.40E4 3.78E2 2006 0.00E0 0.00E0 0.00E0 0.00E0 1.67E4 5.83E2 2007 0.00E0 0.00E0 0.00E0 0.00E0 1.01E4 7.82E2 2008 6.80E0 1.16E1 0.00E0 0.00E0 6.02E3 6.31E2 2009 9.40E0 1.06E1 0.00E0 0.00E0 3.93E3 5.29E2 2010 0.00E0 0.00E0 0.00E0 0.00E0 7.26E3 2.94E2 2011 8.75E0 1.96E1 0.00E0 0.00E0 8.29E3 5.41E2 2012 0.00E0 0.00E0 0.00E0 0.00E0 1.21E4 3.71E2 2013 0.00E0 0.00E0 0.00E0 0.00E0 8.62E3 4.02E2 2014(2) 7.23E0 4.69E0 0.00E0 0.00E0 7.79E3 4.18E2 0.00E0 indicates no detectable measurements 1984 - 1986 mean based on all net activity (1) 1987 - Gamma spectroscopy system change (2) 2014 - Gamma spectroscopy system change

Section 3 - Page 10 3.4 GROUND WATER A total of two ground water samples was collected and analyzed for gamma emitters and tritium. There is one indicator location and no control location.

Naturally occurring K-40 was the only radionuclide identified during 2014. There have been no radionuclides identified in ground water samples since 1988.

Section 3 - Page 11 3.5 MILK A total of 26 milk samples was analyzed by gamma spectroscopy and low level iodine during 2014. There was one control location sampled. No indicator dairies were identified by the 2014 land use census.

There were no gamma emitting radionuclides attributable to plant operations identified in milk samples in 2014. Cs-137 is the only radionuclide, other than naturally occurring, reported in milk samples since 1996. Cs-137 in milk is not unusual. It is a constituent of nuclear weapons test fallout and nuclear plant accidents and has been observed periodically in samples from indicator and control locations since the preoperational period. Airborne Cs-137 has not been released from the plant since 1992.

Table 3.5 lists highest indicator location annual mean and control location annual mean for Cs-137 since the preoperational period. K-40 is a naturally occurring radionuclide observed in milk samples in 2014.

Section 3 - Page 12 Table 3.5 Mean Concentration of Radionuclides in Milk YEAR Cs-137 Indicator (pCi/l)

Cs-137 Control (pCi/l) 1984 2.95E0 2.98E0 1985 2.11E0 2.12E0 1986 3.76E0 4.54E0 1987(1) 5.00E0 5.50E0 1988 3.20E0 3.80E0 1989 0.00E0 0.00E0 1990 8.00E0 6.70E0 1991 0.00E0 0.00E0 1992 3.40E0 5.00E0 1993 5.00E0 0.00E0 1994 2.80E0 0.00E0 1995 8.60E0 0.00E0 1996 6.05E0 0.00E0 1997 0.00E0 0.00E0 1998 0.00E0 0.00E0 1999 0.00E0 0.00E0 2000 0.00E0 0.00E0 2001 0.00E0 0.00E0 2002 0.00E0 0.00E0 2003 0.00E0 0.00E0 2004 No Indicator Location 0.00E0 2005 No Indicator Location 0.00E0 2006 No Indicator Location 0.00E0 2007 No Indicator Location 0.00E0 2008 No Indicator Location 0.00E0 2009 No Indicator Location 0.00E0 2010 No Indicator Location 0.00E0 2011 No Indicator Location 0.00E0 2012 No Indicator Location 0.00E0 2013 No Indicator Location 0.00E0 2014(2)

No Indicator Location 0.00E0 0.00E0 indicates no detectable measurements 1984 - 1986 mean based on all net activity (1) 1987 - Gamma spectroscopy system change (2) 2014 - Gamma spectroscopy system change

Section 3 - Page 13 3.6 BROADLEAF VEGETATION Gamma spectroscopy was performed on 60 broadleaf vegetation samples during 2014.

Four indicator locations and one control location were sampled.

Six of the forty-eight samples collected at indicator locations contained detectable Cs-137 activity. Cs-137 was detected in six of the twelve samples collected at location 201. The highest Cs-137 concentration detected at location 201 was 58.6 pCi/kg which is 2.93% of the reporting level. Cs-137 was not detected in the control location samples.

Cs-137 is the only gamma emitting radionuclide, other than naturally occurring, reported in vegetation samples. It is not unusual for Cs-137 to be present in vegetation. It is a constituent of nuclear weapons test fallout and nuclear plant accidents and has been observed in samples from indicator and control locations since the preoperational period. Table 3.6 lists the highest indicator location annual mean and control location annual mean for Cs-137 since early in the stations operational history. Visual inspection of the tabular data did not reveal any increasing trends.

Figure 3.6 shows indicator and control annual means for Cs-137 in vegetation since 1984.

Values shown from 1984 to 2014 show a stable trend for Cs-137 in vegetation. No airborne Cs-137 has been released from the plant since 1992.

K-40 and Be-7 are naturally occurring radionuclides that were observed in broadleaf vegetation samples in 2014.

Figure 3.6 0

200 400 600 800 1000 1200 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Cs-137 in Broadleaf Vegetation Indicator Location Control Location 50% Reporting Level pCi/kg

Section 3 - Page 14 Table 3.6 Mean Concentration of Radionuclides in Broadleaf Vegetation YEAR Cs-137 Indicator (pCi/kg)

Cs-137 Control (pCi/kg) 1984 3.76E1 1.30E1 1985 5.48E1 4.16E1 1986 7.42E1 2.22E1 1987(1) 6.10E1 5.10E1 1988 9.10E1 7.40E1 1989 1.00E2 4.80E1 1990 7.70E1 5.80E1 1991 1.98E2 8.60E1 1992 9.70E1 0.00E0 1993 1.13E2 3.20E1 1994 7.00E1 0.00E0 1995 3.60E1 0.00E0 1996 2.23E2 6.22E1 1997 7.57E1 0.00E0 1998 6.53E1 0.00E0 1999 1.08E2 0.00E0 2000 1.04E2 0.00E0 2001 3.76E1 0.00E0 2002 7.02E1 0.00E0 2003 4.96E1 2.40E1 2004 5.45E1 0.00E0 2005 5.48E1 0.00E0 2006 5.79E1 0.00E0 2007 6.31E1 0.00E0 2008 4.44E1 0.00E0 2009 4.25E1 0.00E0 2010 3.77E1 0.00E0 2011 2.62E1 0.00E0 2012 0.00E0 0.00E0 2013 0.00E0 0.00E0 2014(2) 3.72E1 0.00E0 0.00E0 indicates no detectable measurements 1984 - 1986 mean based on all net activity 2011 concentration affected by Fukushima Daiichi (1) 1987 - Gamma spectroscopy system change (2) 2014 - Gamma spectroscopy system change

Section 3 - Page 15 3.7 FOOD PRODUCTS Collection of food product samples (crops) from an irrigated garden began in 1989. The irrigated garden is located on Lake Wylie downstream from CNS, Location 260. During the 2014 growing season twelve samples were collected and analyzed for gamma radionuclides. There were no gamma emitting radionuclides attributable to plant operations identified in food product samples in 2014. There is no control location for this media type.

Table 3.7 shows Cs-137 indicator location highest annual mean concentrations since 1989.

K-40 and Be-7 are naturally occurring radionuclides that were observed in food product samples in 2014.

Table 3.7 Mean Concentration of Radionuclides in Food Products YEAR Cs-137 Indicator (pCi/kg) 1989 0.00E0 1990 0.00E0 1991 0.00E0 1992 0.00E0 1993 2.50E1 1994 0.00E0 1995 0.00E0 1996 0.00E0 1997 0.00E0 1998 0.00E0 1999 0.00E0 2000 0.00E0 2001 0.00E0 2002 0.00E0 2003 0.00E0 2004 0.00E0 2005 0.00E0 2006 0.00E0 2007 0.00E0 2008 0.00E0 2009 0.00E0 2010 0.00E0 2011 0.00E0 2012 0.00E0 2013 0.00E0 2014(1) 0.00E0 0.00E0 indicates no detectable measurements There is no control location for Food Products.

(1) 2014 - Gamma spectroscopy system change

Section 3 - Page 16 3.8 FISH Gamma spectroscopy was performed on 12 fish samples collected during 2014. One downstream indicator location and one control location were sampled.

Co-58, Co-60, and Cs-137 are normally the predominant radionuclides identified in fish samples. Cs-137 was detected in one indicator sample in 2014 at a concentration of 11.0 pCi/kg, which is 0.55% of the reporting level. Cs-137 was not detected in any of the control location samples.

Figures 3.8-1, 3.8-2, and 3.8-3 are graphs displaying annual mean concentrations for Co-58, Co-60, and Cs-137. Table 3.8 depicts the highest indicator location annual mean for radionuclides detected. In addition, radionuclides identified in fish samples since 1988 have been included in the table. Overall, radionuclides have not shown a significant trend or accumulation.

K-40 was observed in some fish samples collected during 2014.

Figure 3.8-1 0

200 400 600 800 1000 1200 1400 1600 1800 2000 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Co-58 in Fish Indicator Location Control Location 5 % Reporting Level pCi/kg

Section 3 - Page 17 Figure 3.8-2 Figure 3.8-3 0

100 200 300 400 500 600 700 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Co-60 in Fish Indicator Location Control Location 5% Reporting Level pCi/kg 0

100 200 300 400 500 600 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Cs-137 in Fish Indicator Location Control Location 20% Reporting Level pCi/kg

Section 3 - Page 18 Table 3.8 Mean Concentrations of Radionuclides in Fish (pCi/kg)

Year Mn-54 Co-58 Co-60 Cs-134 Cs-137 Nb-95 Fe-59 Sb-122 Sb-125 1984 3.07E0 3.00E0 6.11E-1

-5.32E0 1.83E0 0.00E0 0.00E0 0.00E0 0.00E0 1985 7.68E-1 3.40E1 9.11E0 3.22E0 1.28E1 5.07E0 0.00E0 0.00E0 0.00E0 1986 2.01E1 1.86E2 4.01E1 3.51E1 9.29E1 0.00E0 7.30E0 0.00E0 0.00E0 1987(1) 7.24E0 7.57E1 4.81E1 3.83E0 4.27E1 5.40E0 0.00E0 0.00E0 0.00E0 1988 2.85E1 1.40E2 9.70E1 1.67E1 8.24E1 0.00E0 0.00E0 0.00E0 0.00E0 1989 8.28E0 1.33E2 3.83E1 1.47E1 4.37E1 8.58E-1 0.00E0 0.00E0 0.00E0 1990 2.51E1 1.75E2 7.77E1 1.32E1 4.66E1 3.33E0 0.00E0 7.00E0 9.25E0 1991 3.15E1 1.46E2 1.29E2 1.03E1 4.60E1 7.90E-1 2.30E0 0.00E0 7.45E0 1992 1.34E1 9.02E1 6.20E1 1.27E1 4.61E1 0.00E0 0.00E0 0.00E0 0.00E0 1993 2.14E1 3.58E2 1.21E2 2.73E0 2.56E1 0.00E0 0.00E0 0.00E0 0.00E0 1994 1.91E0 4.75E1 1.81E1 0.00E0 1.75E1 0.00E0 0.00E0 0.00E0 1.45E1 1995 5.65E1 8.90E2 2.66E2 0.00E0 6.77E1 1.38E1 0.00E0 0.00E0 0.00E0 1996 0.00E0 5.95E1 6.68E1 0.00E0 3.02E1 0.00E0 0.00E0 0.00E0 0.00E0 1997 0.00E0 4.93E1 9.88E0 0.00E0 2.74E1 0.00E0 0.00E0 0.00E0 0.00E0 1998 0.00E0 6.44E1 2.86E1 0.00E0 1.58E1 0.00E0 0.00E0 0.00E0 0.00E0 1999 0.00E0 3.12E1 2.71E1 0.00E0 1.87E1 0.00E0 0.00E0 0.00E0 0.00E0 2000 0.00E0 2.13E2 2.69E2 0.00E0 1.52E1 0.00E0 0.00E0 0.00E0 0.00E0 2001 0.00E0 4.66E1 0.00E0 0.00E0 2.08E1 0.00E0 0.00E0 0.00E0 0.00E0 2002 0.00E0 5.23E1 7.00E1 0.00E0 1.73E1 0.00E0 0.00E0 0.00E0 0.00E0 2003 0.00E0 1.43E2 2.61E1 0.00E0 1.19E1 0.00E0 0.00E0 0.00E0 0.00E0 2004 4.92E1 1.81E1 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2005 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2006 0.00E0 0.00E0 0.00E0 0.00E0 1.44E1 0.00E0 0.00E0 0.00E0 0.00E0 2007 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2008 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2009 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2010 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2011 0.00E0 0.00E0 0.00E0 0.00E0 2.16E1 0.00E0 0.00E0 0.00E0 0.00E0 2012 0.00E0 0.00E0 0.00E0 0.00E0 1.84E1 0.00E0 0.00E0 0.00E0 0.00E0 2013 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2014(2) 0.00E0 0.00E0 0.00E0 0.00E0 1.10E1 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 indicates no detectable measurements 1984 - 1986 mean based on all net activity (1) 1987 - Gamma spectroscopy system change (2) 2014 - Gamma spectroscopy system change

Section 3 - Page 19 3.9 SHORELINE SEDIMENT During 2014, a total of 6 shoreline sediment samples was analyzed, four from two indicator locations and two from the control location.

Co-58, Co-60, and Cs-137 are normally the predominant radionuclides identified in shoreline sediment samples. Mn-54, Co-58, Co-60, and Cs-137 were identified in one of the two indicator samples collected from location 208 (Discharge Canal), which is the closest location to the plants liquid effluent release point (PIP G-14-02572). Mn-54 identified with an annual mean concentration of 68.4 pCi/kg, Co-58 identified with an annual mean concentration of 887 pCi/kg, Co-60 identified with an annual mean concentration of 790 pCi/kg, and Cs-137 identified with an annual mean concentration of 24.6 pCi/kg. There were no gamma emitting radionuclides attributable to plant operations identified in samples from the other indicator location (210) or the control location.

During the third quarter of 2014, Catawba experienced higher than normal levels of mixed fission and activation products in the liquid radioactive waste processing system due to process influent stream chemical changes and larger than normal volumes of non-contaminated water introduced into the system. As system tanks reached storage capacity, liquid radioactive waste was discharged with higher than normal concentrations of mixed fission and activation products. Concentrations observed did not challenge the effluent concentration limits described in 10CFR20 or Selected Licensee Commitments (SLCs). Resulting dose to a member of the public from additional mixed fission and activation products discharged in liquid effluents also did not challenge limits described in 10CFR20, 10CFR50, 40CFR190, or SLCs. (PIP C-14-06334)

Table 3.9 lists highest indicator location annual mean since 1984. Included in the table are radionuclides that have been identified in shoreline sediment samples since 1988.

Figures 3.9-1, 3.9-2, and 3.9-3 are graphs displaying annual mean concentrations for Co-58, Co-60, and Cs-137.

Naturally occurring K-40 was observed in some shoreline sediment samples collected during 2014.

Section 3 - Page 20 Figure 3.9-1 Figure 3.9-2 Figure 3.9-2 There is no reporting level for Co-60 in Shoreline Sediment 0

200 400 600 800 1000 1200 1400 1600 1800 2000 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Co-58 in Shoreline Sediment Indicator Location Control Location pCi/kg 0

200 400 600 800 1000 1200 1400 1600 1800 2000 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Co-60 in Shoreline Sediment Indicator Location Control Location pCi/kg There is no reporting level for Co-58 in Shoreline Sediment

Section 3 - Page 21 Figure 3.9-3 There is no reporting level for Cs-137 in Shoreline Sediment 0

50 100 150 200 250 300 350 400 450 500 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Concentration of Cs-137 in Shoreline Sediment Indicator Location Control Location pCi/kg

Section 3 - Page 22 Table 3.9 Mean Concentrations of Radionuclides in Shoreline Sediment (pCi/kg)

Year Mn-54 Co-58 Co-60 Nb-95 Zr-95 Cs-134 Cs-137 Co-57 Sb-125 1984 1.03E0 4.40E0

-2.34E0 0.00E0 0.00E0 3.19E1 1.07E2 0.00E0 0.00E0 1985

-3.12E0 1.16E2 5.18E0 0.00E0 0.00E0 2.11E2 2.97E2 0.00E0 0.00E0 1986 1.09E2 3.79E2 2.05E2 0.00E0 3.96E1 6.50E1 1.61E2 0.00E0 0.00E0 1987(1) 8.83E1 4.08E2 1.61E2 4.22E1 0.00E0 6.08E1 1.26E2 0.00E0 0.00E0 1988 1.07E2 3.29E2 2.63E2 2.28E1 7.54E0 2.59E1 1.07E2 7.65E-1 3.68E0 1989 4.58E1 1.94E2 1.21E2 5.02E0 0.00E0 1.65E1 5.77E1 0.00E0 1.57E1 1990 5.39E1 2.08E2 1.77E2 0.00E0 0.00E0 1.66E1 8.18E1 0.00E0 7.15E0 1991 8.50E1 3.70E2 4.19E2 5.30E0 0.00E0 1.82E1 8.33E1 1.20E0 1.50E1 1992 1.17E2 1.13E3 5.80E2 3.50E0 0.00E0 1.69E1 1.07E2 3.00E0 2.70E1 1993 1.33E2 1.07E3 1.04E3 0.00E0 0.00E0 2.80E1 1.26E2 2.47E1 2.16E2 1994 4.93E1 7.98E2 5.73E2 0.00E0 0.00E0 5.67E0 1.07E2 4.38E0 4.60E1 1995 1.02E2 1.33E3 8.65E2 1.13E2 0.00E0 0.00E0 8.50E1 3.69E1 1.49E2 1996 8.73E1 3.39E2 5.81E2 0.00E0 0.00E0 0.00E0 8.30E1 0.00E0 1.96E2 1997 6.96E1 5.90E2 7.64E2 0.00E0 0.00E0 0.00E0 1.43E2 0.00E0 1.76E2 1998 3.07E1 1.88E2 2.30E2 0.00E0 0.00E0 0.00E0 7.11E1 0.00E0 0.00E0 1999 7.28E1 2.29E2 4.39E2 0.00E0 0.00E0 0.00E0 9.42E1 0.00E0 1.40E2 2000 0.00E0 3.90E1 1.03E2 0.00E0 0.00E0 0.00E0 4.96E1 0.00E0 0.00E0 2001 3.86E1 8.27E1 3.29E2 0.00E0 0.00E0 0.00E0 5.58E1 0.00E0 0.00E0 2002 3.51E1 2.41E2 2.22E2 0.00E0 0.00E0 0.00E0 8.83E1 0.00E0 0.00E0 2003 2.17E1 8.75E1 1.08E2 0.00E0 0.00E0 0.00E0 2.69E1 0.00E0 0.00E0 2004 6.60E1 2.67E2 3.83E2 0.00E0 0.00E0 0.00E0 3.79E1 0.00E0 0.00E0 2005 0.00E0 1.61E2 1.41E2 0.00E0 0.00E0 0.00E0 3.04E1 0.00E0 0.00E0 2006 0.00E0 5.40E1 1.11E2 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2007 0.00E0 8.77E1 9.46E1 0.00E0 0.00E0 0.00E0 6.13E1 0.00E0 0.00E0 2008 0.00E0 1.48E2 6.24E1 0.00E0 0.00E0 0.00E0 2.57E1 0.00E0 0.00E0 2009 0.00E0 1.10E2 1.04E2 0.00E0 0.00E0 0.00E0 2.27E1 0.00E0 0.00E0 2010 0.00E0 6.56E1 1.37E2 0.00E0 0.00E0 0.00E0 2.56E1 0.00E0 0.00E0 2011 0.00E0 8.36E1 2.36E2 0.00E0 0.00E0 3.62E1 4.33E1 1.05E1 0.00E0 2012 0.00E0 5.59E1 1.70E2 0.00E0 0.00E0 0.00E0 3.15E1 0.00E0 0.00E0 2013 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 0.00E0 2014(2) 6.84E1 8.87E2 7.90E2 0.00E0 0.00E0 0.00E0 2.46E1 0.00E0 0.00E0 0.00E0 indicates no detectable measurements 1984 - 1986 mean based on all net activity (1) 1987 - Gamma spectroscopy system change (2) 2014 - Gamma spectroscopy system change

Section 3 - Page 23 3.10 DIRECT GAMMA RADIATION 3.10.1 ENVIRONMENTAL TLD Catawba is licensed with an exclusion area boundary defined by UFSAR Section 2.1.1.2 as a 2500 foot radius from station center. This is the same boundary established for determining radioactive effluent release limits. No permanent public access is permitted within the exclusion area. TLD locations designated as "inner ring" are within a 1 mile radius from station center and all are used as indicators. TLD locations designated as "outer ring" are outside the 1 mile "inner ring" but within a 5 mile radius of station center. All outer ring TLD locations are used as indicators. A subset of TLD locations within a 7 to 11 mile radius from station center are designated as "special interest." The three "control" locations are greater than 7 miles from station center. These locations were chosen to reduce the probability of influence from Catawba operation on data. The control locations are not used as background subtraction in the TLD analysis. Their purpose is to provide a comparison to indicator locations.

In 2014, 163 total TLDs were analyzed, 151 at indicator locations and 12 at control locations. TLDs are collected and analyzed quarterly. Transit and laboratory background dose is determined and subtracted from gross field readings as required by ANSI N545-1975. The highest annual total dose was 85.4 mrem at indicator location 237, 4.75 miles SSE of station center. Figure 3.10 and Table 3.10-A show TLD inner ring, outer ring, and control location annual averages in mrem per year. Data is provided from 1984 when TLD locations were added and arranged in an inner ring and outer ring configuration. Preoperational data is also provided in the table. As shown in the graph, doses measured by environmental TLDs show little or no change since the current TLD system was implemented.

Comparing data from the 2014 Catawba Annual Radiological Effluent Release Report (ARERR), dose to a member of the public resulting from gaseous effluent releases at Catawba is a small fraction of measured TLD dose. Therefore, it can be concluded that gaseous effluents from Catawba had negligible impact on measured TLD values.

Starting in 2014, enhanced analytical methods were implemented. Quarterly and annual baseline dose was determined using appropriate statistical methods considering data from 2000 through 2012. Quarterly and annual dose for 2014 was compared to baseline values to determine if an Investigation Level had been exceeded for evaluation of potential dose to a member of the public. No TLD location exceeded the Quarterly or Annual Investigation Level in 2014, therefore no evaluation of dose to a member of the public from direct or scattered radiation was performed. Table 3.10-B summarizes the data.

A TLD intercomparison program is conducted as part of the quality assurance program. Results of this program are included in section 5.9.

Section 3 - Page 24 3.10.2 ISFSI The Catawba ISFSI began operation in 2007. It is located approximately 0.2 miles north of station center in a secured area specifically constructed to provide dry storage for spent nuclear fuel. The ISFSI employs the NAC-UMS and MAGNASTOR vertical storage designs. Irradiated fuel assemblies are confined, protected, and shielded by a reinforced concrete modules. Both systems are completely passive and designed to provide radiation shielding and safe confinement for a range of accident conditions and natural events. Both systems use a passive natural circulation ventilation system to remove decay heat from the modules. No radiological liquid or gaseous effluents are expected from the passive storage provided by the ISFSI. Therefore any dose to offsite locations would be from direct and scattered gamma radiation.

Environmental TLD results described in 3.10.1 above are reviewed quarterly to identify trends and demonstrate compliance with dose and dose rate limits at the 2500 foot exclusion area boundary. Additional TLD locations not associated with REMP are presently located on the Catawba protected area fence near the ISFSI and on the ISFSI boundary. These are used to demonstrate compliance with occupational exposure controls and augment REMP TLD results. Doses measured by environmental TLDs show little or no change since the ISFSI began operation.

Figure 3.10 There is no reporting level for Direct Radiation (TLD)

AREOR 2014, results converted from mR/year to mrem/yr (n

0.95) 0 20 40 60 80 100 120 140 160 1984 1987 1990 1993 1996 1999 2002 2005 2008 2011 2014 Direct Gamma Radiation (TLD) Results Inner Ring Outer Ring Control mrem/yr

Section 3 - Page 25 Table 3.10-A Direct Gamma Radiation (TLD) Results(1)

Year Inner Ring Average (mrem/yr)

Outer Ring Average (mrem/yr)

Control Average (mrem/yr) 1984*

8.31E1 7.85E1 7.53E1 1985 1.11E2 1.03E2 1.03E2 1986 9.91E1 9.36E1 8.97E1 1987 9.22E1 8.30E1 8.05E1 1988 7.09E1 6.68E1 6.37E1 1989 6.37E1 5.78E1 5.70E1 1990 4.94E1 4.23E1 3.71E1 1991 5.89E1 5.14E1 4.44E1 1992 7.64E1 6.89E1 6.13E1 1993 6.68E1 5.79E1 5.09E1 1994 7.25E1 6.58E1 6.07E1 1995 9.46E1 8.52E1 7.68E1 1996 8.01E1 7.02E1 6.04E1 1997 7.83E1 6.83E1 5.45E1 1998 8.10E1 7.05E1 6.14E1 1999 7.60E1 6.47E1 5.49E1 2000 7.13E1 5.98E1 4.98E1 2001 7.69E1 6.72E1 5.24E1 2002 7.49E1 6.60E1 5.24E1 2003 7.76E1 6.90E1 5.32E1 2004 7.47E1 7.01E1 5.28E1 2005 7.58E1 7.15E1 5.48E1 2006 7.31E1 6.99E1 5.43E1 2007 7.65E1 7.26E1 5.62E1 2008 7.74E1 7.32E1 5.74E1 2009 7.73E1 6.94E1 5.70E1 2010 7.74E1 6.80E1 5.43E1 2011 7.50E1 6.67E1 5.54E1 2012 7.61E1 6.80E1 5.83E1 2013 7.60E1 6.92E1 5.65E1 2014 7.07E1 6.60E1 5.40E1

Preoperational Data (1) 2014 AREOR, tabular results converted from mR/yr to mrem/yr (n

0.95)

Section 3 - Page 26 Table 3.10-B Direct Gamma Radiation (TLD) Catawba 2014 Investigation Level Catawba 2014 MDDQ: 6 Catawba 2014 MDDA: 11 Quarterly (mrem)

Annual(mrem)

Location BQ MQQ1 MQQ2 MQQ3 MQQ4 LQQ1 LQQ2 LQQ3 LQQ4 BA MA LA 200 17.1 18.6 15.3 16.2 15.7 ND ND ND ND 69.6 65.8 ND 201 17.2 18.7 14.3 14.5 18.8 ND ND ND ND 69.0 66.4 ND 203 20.1 19.5 14.5 15.8 18.3 ND ND ND ND 78.7 68.1 ND 204-P 17.0 18.1 12.2 13.8 16.0 ND ND ND ND 70.3 60.0 ND 204-S 19.2 19.1 14.3 14.4 15.9 ND ND ND ND 76.8 63.7 ND 205-P 20.4 18.8 14.9 16.0 16.0 ND ND ND ND 81.4 65.6 ND 205-S 14.0 16.2 11.4 13.7 14.1 ND ND ND ND 55.4 55.4 ND**

206 21.1 22.6 19.8 17.7 18.4 ND ND ND ND 85.2 78.5 ND 207 20.9 22.7 19.9 17.6 18.8 ND ND ND ND 84.7 78.9 ND 212 15.9 17.9 14.4 13.9 14.9 ND ND ND ND 64.0 61.1 ND 217 11.3 15.7 10.9 10.0 11.2 ND ND ND ND 46.1 47.8 ND 222 16.8 20.0 14.5 14.7 15.6 ND ND ND ND 67.3 64.8 ND 223 19.6 20.5 18.1 17.9 17.9 ND ND ND ND 78.6 74.3 ND 225-P 18.7 20.8 16.4 16.7 17.4 ND ND ND ND 74.8 71.3 ND 225-S 17.8 20.1 16.3 16.7 18.7 ND ND ND ND 71.8 71.9 ND 226 17.0 18.6 13.4 15.2 15.1 ND ND ND ND 70.6 62.3 ND 227 17.9 19.8 15.1 15.1 14.6 ND ND ND ND 72.2 64.6 ND 228 17.5 19.8 15.0 16.2 15.3 ND ND ND ND 70.0 66.2 ND 229 22.0 26.5 18.0 20.0 20.5 ND ND ND ND 88.6 84.9 ND 230 12.4 14.3 10.6 11.8 12.2 ND ND ND ND 50.5 48.9 ND 231-P 19.3 19.9 15.0 16.3 16.8 ND ND ND ND 77.1 68.0 ND 231-S 20.3 21.2 17.7 19.4 19.4 ND ND ND ND 81.7 77.6 ND 232-P 21.3 23.8 17.4 22.2 ND ND ND ND 86.2 84.6 ND 232-S 20.1 16.0 18.6 20.0 ND ND ND ND 80.5 72.8 ND 233 14.5 15.3 12.3 12.9 13.3 ND ND ND ND 58.3 53.8 ND 234-P 17.0 18.6 15.9 17.8 ND ND ND ND 67.9 69.7 ND 234-S 18.3 19.4 15.5 15.8 17.9 ND ND ND ND 73.1 68.5 ND 235 16.2 18.6 12.8 14.2 17.0 ND ND ND ND 64.8 62.6 ND 236 21.2 22.9 17.9 18.7 19.7 ND ND ND ND 85.5 79.1 ND 237 21.0 26.4 16.9 20.0 22.1 ND ND ND ND 90.1 85.4 ND 238-P 16.2 18.4 15.7 16.0 15.6 ND ND ND ND 64.5 65.6 ND 238-S 18.3 20.9 15.9 16.4 17.5 ND ND ND ND 73.7 70.7 ND 239 17.9 19.9 18.5 23.5 ND ND ND ND 72.2 82.5 ND 240-P 12.3 13.4 10.3 11.9 12.1 ND ND ND ND 50.1 47.6 ND 240-S 12.3 14.4 10.1 11.7 12.2 ND ND ND ND 50.1 48.4 ND 241-P 13.1 13.9 10.6 12.2 13.2 ND ND ND ND 52.6 49.9 ND 241-S 13.1 12.7 10.9 12.1 11.4 ND ND ND ND 53.3 47.1 ND 242 16.2 17.8 13.9 15.2 15.0 ND ND ND ND 65.0 61.8 ND 243 16.2 19.6 14.2 14.7 16.0 ND ND ND ND 65.1 64.4 ND 244-P 16.7 21.8 16.9 17.7 19.2 ND ND ND ND 68.9 75.5 ND 244-S 15.5 17.5 14.1 13.4 15.1 ND ND ND ND 62.2 60.0 ND 245 16.3 20.6 13.6 14.4 17.2 ND ND ND ND 66.4 65.8 ND 246-P 14.6 16.6 12.5 12.7 15.0 ND ND ND ND 59.4 56.9 ND 246-S 14.0 15.6 11.5 13.0 14.9 ND ND ND ND 57.8 55.0 ND 247 12.9 14.3 10.7 13.1 12.2 ND ND ND ND 51.9 50.3 ND 248 14.2 16.2 12.5 13.4 12.8 ND ND ND ND 56.9 55.0 ND 249 17.1 21.5 15.1 15.2 16.3 ND ND ND ND 68.2 68.1 ND 250 16.2 17.3 14.0 15.7 15.5 ND ND ND ND 65.0 62.4 ND 251 16.6 18.2 14.3 16.0 15.3 ND ND ND ND 66.0 63.7 ND 255 20.0 22.1 17.3 19.2 20.7 ND ND ND ND 80.1 79.3 ND 256 19.9 21.9 17.2 19.3 20.3 ND ND ND ND 79.7 78.7 ND 258 18.9 21.6 16.6 17.1 21.3 ND ND ND ND 76.9 76.6 ND

MA determined by normalizing available quarterly data to 4 full quarters

Section 3 - Page 27 Table 3.10-B definition of terms MDDQ = minimum differential dose, quarterly, 3 times 90th percentile sQ determined from analysis in mrem MDDA = minimum differential dose, annual, 3 times 90th percentile sA determined from analysis in mrem BQ = Quarterly baseline (mrem)

MQ = locations 91 day standard quarter normalized dose (mrem per standard quarter)

LQ = quarterly investigation level dose (mrem)

BA = baseline background dose (mrem) (annual)

MA = annual monitoring data - Ma determined by normalizing available quarterly data to 4 full quarters LA = annual investigation level dose (mrem)

ND = not detected

Section 3 - Page 28 3.11 LAND USE CENSUS The 2014 Annual Land Use Census was conducted July 9, and July 10, 2014 as required by SLC 16.11-14. Table 3.11 summarizes census results. A map indicating identified locations is shown in Figure 3.11.

During the 2014 census no irrigated gardens (superior to existing gardens) or milk locations were identified. The nearest residence is located in the NE sector at 0.56 miles.

No environmental program changes were required as a result of the 2014 land use census.

Table 3.11 Catawba 2014 Land Use Census Results Sector Distance (Miles)

Sector Distance (Miles)

N Nearest Residence Nearest Garden (irrigated)

Nearest Milk Animal 0.63 1.55 S

Nearest Residence Nearest Garden Nearest Milk Animal 0.63 1.25 NNE Nearest Residence Nearest Garden Nearest Milk Animal 0.66 4.47 SSW Nearest Residence Nearest Garden Nearest Milk Animal 0.81 1.34 NE Nearest Residence Nearest Garden Nearest Milk Animal 0.56 0.68 SW Nearest Residence Nearest Garden Nearest Milk Animal 0.63 2.02 ENE Nearest Residence Nearest Garden Nearest Milk Animal 0.61 2.73 WSW Nearest Residence Nearest Garden Nearest Milk Animal 0.57 2.03 E

Nearest Residence Nearest Garden Nearest Milk Animal 0.65 3.52 W

Nearest Residence Nearest Garden Nearest Milk Animal 0.68 0.96 ESE Nearest Residence Nearest Garden Nearest Milk Animal 0.84 3.70 WNW Nearest Residence Nearest Garden Nearest Milk Animal 1.10 1.18 SE Nearest Residence Nearest Garden (irrigated)

Nearest Milk Animal 0.97 2.55 NW Nearest Residence Nearest Garden Nearest Milk Animal 1.39 1.54 SSE Nearest Residence Nearest Garden Nearest Milk Animal 0.74 1.64 NNW Nearest Residence Nearest Garden Nearest Milk Animal 0.86 2.13

- indicates no occurrences within the 5 mile radius

Section 3 - Page 29 Figure 3.11 Catawba Nuclear Station 2014 Land Use Census Map Legend CNS_Gardens

CNS_Residence

/'x./ CNS_Railroads

/'.../ NavteqHwys

/'.../ NavteqStreets

~-=-~ States DJcounties N H DWaterbody AWroximate location of features Shown 0

0.5 2Miles Projection NCSP NAD27

Section 4 - Page 1 4.0 EVALUATION OF DOSE 4.1 DOSE FROM ENVIRONMENTAL MEASUREMENTS Annual doses to maximum exposed individuals were estimated based on measured concentrations of radionuclides in 2014 CNS REMP samples. The primary purpose of estimating doses based on sample results is to allow comparison to effluent program dose estimates.

Doses based on sample results were calculated using the methodology and data presented in NRC Regulatory Guide 1.109. Measured radionuclide concentrations, averaged over the entire year for a specific radionuclide, indicator location and sample type, were used to calculate REMP-based doses. Where applicable, average background concentration at the corresponding control location was subtracted. Regulatory Guide 1.109 consumption rates for the maximum exposed individual were used in the calculations. When the guide listed NO DATA as the dose factor for a given radionuclide and organ, a dose factor of zero was assumed.

Maximum dose estimates (Highest Annual Mean Concentration) based on fish sample results are reported in Table 4.1-A. The individual critical population and pathway dose calculations are reported in Table 4.1-B.

REMP-based dose estimates are not reported for airborne radioiodine, airborne particulate, milk, or ground water sample types because no radionuclides attributable to CNS operations were detected. Naturally occurring K-40 and Be-7 were detected in some samples but were not included in any REMP-based dose estimates. Dose estimates are not reported for surface water because sampled surface water is not considered to be a potable drinking water source although surface water tritium concentrations are used in calculating doses from fish. Exposure estimates based upon REMP TLD results are discussed in Section 3.10.

The maximum environmental organ dose estimate for any single sample type (excluding TLD results) collected during 2014 was 1.70E-1 mrem to the adult total body from consuming vegetation.

4.2 ESTIMATED DOSE FROM RELEASES Throughout the year, dose estimates were calculated based on actual 2014 liquid and gaseous effluent release data. Effluent-based dose estimates were calculated using the RETDAS computer program which employs methodology and data presented in NRC Regulatory Guide 1.109. These doses are shown in Table 4.1-A along with the corresponding REMP-based dose estimates. Summaries of RETDAS dose calculations are reported in the Annual Radioactive Effluent Release Report.

Section 4 - Page 2 The effluent-based liquid release doses are summations of the dose contributions from the drinking water, fish, and shoreline pathways. For iodine, particulate, and tritium exposure the effluent-based gaseous release doses are summations of the dose contributors from ground/plane, inhalation, milk and vegetation pathways.

4.3 COMPARISON OF DOSES The environmental and effluent dose estimates given in Table 4.1-A agree reasonably well. The similarity of the doses indicate that the radioactivity levels in the environment do not differ significantly from those expected based on effluent measurements and modeling of the environmental exposure pathways. This indicates that effluent program dose estimates are both valid and reasonably conservative.

There are some differences in how effluent and environmental doses are calculated that affect the comparison. Doses calculated from environmental data are conservative because they are based on a mean that includes only samples with a net positive activity versus a mean that includes all sample results (i.e. zero results are not included in the mean). Also, airborne tritium is not measured in environmental samples but is used to calculate effluent doses.

Additionally, in 2010 Catawba began reporting estimated dose from effluent Carbon 14 (C-14). This change came about with the issuing of Regulatory Guide 1.21, Revision 2, Measuring, Evaluating and Reporting Radioactive Material in Liquid and Gaseous Effluents and Solid Waste. A description of this change is found in the 2010 Annual Radiological Effluent Release Report. C-14 is not easily measured in the environment and therefore, environmental and effluent doses from C-14 cannot be compared directly.

In calculations based on liquid release pathways, shoreline sediment, drinking water, and fish were the predominant dose pathways based on environmental and effluent data.

The maximum total organ dose based on 2014 environmental sample results was 7.28E-2 mrem to the child liver. The maximum total organ dose of 1.54E-1 mrem for liquid effluent-based estimates was to the child bone.

In calculations based on gaseous release pathways, vegetation was the predominant dose pathway based on environmental and effluent data. The maximum total organ dose based on 2014 environmental sample results was 1.70E-1 mrem to the adult total body.

The maximum total organ dose for gaseous effluent estimates was 4.71E0 mrem to the child bone.

The doses calculated do not exceed 40CFR190 or 10CFR50 dose commitment limits for members of the public. Doses to members of the public attributable to the operation of CNS are being maintained well within regulatory limits.

Section 4 - Page 3 TABLE 4.1-A Page 1 of 2 CATAWBA NUCLEAR STATION 2014 ENVIRONMENTAL AND EFFLUENT DOSE COMPARISON LIQUID RELEASE PATHWAY Organ Environmental or Effluent Data Critical Age (1)

Critical Pathway (2)

Location Maximum Dose (3)

(mrem)

Skin Environmental Teen Shoreline Sediment 208 (0.45 mi S) 1.27E-02 Skin Effluent Teen Shoreline Sediment Discharge Pt.

9.72E-03 Bone Environmental Child Fresh Water Fish 208 (0.45 mi S) 2.48E-02 Bone Effluent Child Fresh Water Fish Discharge Pt.

1.54E-01 Liver Environmental Child Drinking Water 214 (7.30 mi SSE) 7.28E-02 Liver Effluent Child Drinking Water 7.30 mi SSE 9.89E-02 T. Body Environmental Adult Fresh Water Fish 208 (0.45 mi S) 6.24E-02 T. Body Effluent Child Drinking Water 7.30 mi SSE 9.45E-02 Thyroid Environmental Child Drinking Water 214 (7.30 mi SSE) 4.91E-02 Thyroid Effluent Child Drinking Water 7.30 mi SSE 8.73E-02 Kidney Environmental Child Drinking Water 214 (7.30 mi SSE) 5.68E-02 Kidney Effluent Child Drinking Water 7.30 mi SSE 8.82E-02 Lung Environmental Child Drinking Water 214 (7.30 mi SSE) 5.19E-02 Lung Effluent Child Drinking Water 7.30 mi SSE 8.79E-02 GI-LLI Environmental Child Drinking Water 214 (7.30 mi SSE) 4.92E-02 GI-LLI Effluent Child Drinking Water 7.30 mi SSE 9.10E-02 (1) Critical Age is the highest total dose (all pathways) to an age group.

(2) Critial Pathway is the highest individual dose within the identified Critical Age group.

(3) Maximum dose is a summation of the fish, drinking water and shoreline sediment pathways.

Section 4 - Page 4 Page 2 of 2 GASEOUS RELEASE PATHWAY IODINE, PARTICULATE, and TRITIUM Organ Environmental or Effluent Data Critical Age (1)

Critical Pathway (2)

Location Maximum Dose (3)

(mrem)

Skin Environmental 0.00E+00 Skin Effluent 0.00E+00 Bone Environmental Child Vegetation 201 (0.53 mi NE) 3.16E-01 Bone Effluent Child Vegetation 0.5 mi NE 4.71E+00 Liver Environmental Child Vegetation 201 (0.53 mi NE) 3.03E-01 Liver Effluent Child Vegetation 0.5 mi NE 2.03E+00 T. Body Environmental Adult Vegetation 201 (0.53 mi NE) 1.70E-01 T. Body Effluent Child Vegetation 0.5 mi NE 2.03E+00 Thyroid Environmental 0.00E+00 Thyroid Effluent Child Vegetation 0.5 mi NE 2.03E+00 Kidney Environmental Child Vegetation 201 (0.53 mi NE) 9.87E-02 Kidney Effluent Child Vegetation 0.5 mi NE 2.03E+00 Lung Environmental Child Vegetation 201 (0.53 mi NE) 3.55E-02 Lung Effluent Child Vegetation 0.5 mi NE 2.03E+00 GI-LLI Environmental Adult Vegetation 201 (0.53 mi NE) 5.02E-03 GI-LLI Effluent Child Vegetation 0.5 mi NE 2.03E+00 (1) Critical Age is the highest total dose (all pathways) to an age group.

(2) Critial Pathway is the highest individual dose within the identified Critical Age group.

(3) Maximum dose is a summation of the ground/plane, inhalation, milk and vegetation pathways.

Section 4 - Page 5 TABLE 4.1-B Maximum Individual Dose for 2014 based on Environmental Measurements (mrem) for Catawba Nuclear Station Age Sample Medium Bone Liver T. Body Thyroid Kidney Lung GI-LLI Skin Infant Airborne 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Drinking Water 0.00E+00 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02 0.00E+00 Milk 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 TOTAL 0.00E+00 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02 0.00E+00 Child Airborne 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Drinking Water 0.00E+00 3.98E-02 3.98E-02 3.98E-02 3.98E-02 3.98E-02 3.98E-02 0.00E+00 Milk 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Broadleaf Vegetation 3.16E-01 3.03E-01 4.47E-02 0.00E+00 9.87E-02 3.55E-02 1.90E-03 0.00E+00 Fish 2.48E-02 3.30E-02 1.28E-02 9.29E-03 1.70E-02 1.21E-02 9.44E-03 0.00E+00 Shoreline Sediment 0.00E+00 0.00E+00 2.26E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.65E-03 TOTAL 3.41E-01 3.76E-01 9.96E-02 4.91E-02 1.56E-01 8.74E-02 5.11E-02 2.65E-03 Teen Airborne 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Drinking Water 0.00E+00 2.08E-02 2.08E-02 2.08E-02 2.08E-02 2.08E-02 2.08E-02 0.00E+00 Milk 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Broadleaf Vegetation 1.75E-01 2.33E-01 8.11E-02 0.00E+00 7.92E-02 3.08E-02 3.31E-03 0.00E+00 Fish 1.97E-02 3.75E-02 2.04E-02 1.12E-02 2.02E-02 1.47E-02 1.16E-02 0.00E+00 Shoreline Sediment 0.00E+00 0.00E+00 1.08E-02 0.00E+00 0.00E+00 0.00E+00 0.00E+00 1.27E-02 TOTAL 1.95E-01 2.91E-01 1.33E-01 3.20E-02 1.20E-01 6.63E-02 3.57E-02 1.27E-02 Adult Airborne 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Drinking Water 0.00E+00 2.94E-02 2.94E-02 2.94E-02 2.94E-02 2.94E-02 2.94E-02 0.00E+00 Milk 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Broadleaf Vegetation 1.90E-01 2.60E-01 1.70E-01 0.00E+00 8.81E-02 2.93E-02 5.02E-03 0.00E+00 Fish 1.84E-02 3.98E-02 3.11E-02 1.46E-02 2.32E-02 1.75E-02 1.51E-02 0.00E+00 Shoreline Sediment 0.00E+00 0.00E+00 1.93E-03 0.00E+00 0.00E+00 0.00E+00 0.00E+00 2.27E-03 TOTAL 2.08E-01 3.29E-01 2.32E-01 4.40E-02 1.41E-01 7.62E-02 4.95E-02 2.27E-03 Note: Dose tables are provided for sample media displaying positive nuclide occurrence.

Section 4 - Page 6 Catawba Nuclear Station Dose from Drinking Water Pathway for 2014 Data Maximum Exposed Infant Infant Dose from Drinking Water Pathway (mrem) = Usage (l) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/l)

Usage (intake in one year) =

330 l Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Water Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/l)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI Mn-54 NO DATA 1.99E-05 4.51E-06 NO DATA 4.41E-06 NO DATA 7.31E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-58 NO DATA 3.60E-06 8.98E-06 NO DATA NO DATA NO DATA 8.97E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Fe-59 3.08E-05 5.38E-05 2.12E-05 NO DATA NO DATA 1.59E-05 2.57E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-60 NO DATA 1.08E-05 2.55E-05 NO DATA NO DATA NO DATA 2.57E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zn-65 1.84E-05 6.31E-05 2.91E-05 NO DATA 3.06E-05 NO DATA 5.33E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Nb-95 4.20E-08 1.73E-08 1.00E-08 NO DATA 1.24E-08 NO DATA 1.46E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zr-95 2.06E-07 5.02E-08 3.56E-08 NO DATA 5.41E-08 NO DATA 2.50E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 I-131 3.59E-05 4.23E-05 1.86E-05 1.39E-02 4.94E-05 NO DATA 1.51E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 3.77E-04 7.03E-04 7.10E-05 NO DATA 1.81E-04 7.42E-05 1.91E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 5.22E-04 6.11E-04 4.33E-05 NO DATA 1.64E-04 6.64E-05 1.91E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BaLa-140 1.71E-04 1.71E-07 8.81E-06 NO DATA 4.06E-08 1.05E-07 4.20E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 H-3 NO DATA 3.08E-07 3.08E-07 3.08E-07 3.08E-07 3.08E-07 3.08E-07 214 384 0.00E+00 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02 Dose Commitment (mrem) =

0.00E+00 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02 3.90E-02

Section 4 - Page 7 Catawba Nuclear Station Dose from Drinking Water Pathway for 2014 Data Maximum Exposed Child Child Dose from Drinking Water Pathway (mrem) = Usage (l) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/l)

Usage (intake in one year) =

510 l Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Water Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/l)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI Mn-54 NO DATA 1.07E-05 2.85E-06 NO DATA 3.00E-06 NO DATA 8.98E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-58 NO DATA 1.80E-06 5.51E-06 NO DATA NO DATA NO DATA 1.05E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Fe-59 1.65E-05 2.67E-05 1.33E-05 NO DATA NO DATA 7.74E-06 2.78E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C0-60 NO DATA 5.29E-06 1.56E-05 NO DATA NO DATA NO DATA 2.93E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zn-65 1.37E-05 3.65E-05 2.27E-05 NO DATA 2.30E-05 NO DATA 6.41E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Nb-95 2.25E-08 8.76E-09 6.26E-09 NO DATA 8.23E-09 NO DATA 1.62E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zr-95 1.16E-07 2.55E-08 2.27E-08 NO DATA 3.65E-08 NO DATA 2.66E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 I-131 1.72E-05 1.73E-05 9.83E-06 5.72E-03 2.84E-05 NO DATA 1.54E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 2.34E-04 3.84E-04 8.10E-05 NO DATA 1.19E-04 4.27E-05 2.07E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 3.27E-04 3.13E-04 4.62E-05 NO DATA 1.02E-04 3.67E-05 1.96E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BaLa-140 8.31E-05 7.28E-08 4.85E-06 NO DATA 2.37E-08 4.34E-08 4.21E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 H-3 NO DATA 2.03E-07 2.03E-07 2.03E-07 2.03E-07 2.03E-07 2.03E-07 214 384 0.00E+00 3.98E-02 3.98E-02 3.98E-02 3.98E-02 3.98E-02 3.98E-02 Dose Commitment (mrem) =

0.00E+00 3.98E-02 3.98E-02 3.98E-02 3.98E-02 3.98E-02 3.98E-02

Section 4 - Page 8 Catawba Nuclear Station Dose from Broadleaf Vegetation Pathway for 2014 Data Maximum Exposed Child Child Dose from Vegetation Pathway (mrem) = Usage (kg) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/kg)

Usage (intake in one year) =

26 kg Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Food Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/kg)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI I-131 1.72E-05 1.73E-05 9.83E-06 5.72E-03 2.84E-05 NO DATA 1.54E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 2.34E-04 3.84E-04 8.10E-05 NO DATA 1.19E-04 4.27E-05 2.07E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 3.27E-04 3.13E-04 4.62E-05 NO DATA 1.02E-04 3.67E-05 1.96E-06 201 37.2 3.16E-01 3.03E-01 4.47E-02 0.00E+00 9.87E-02 3.55E-02 1.90E-03 Dose Commitment (mrem) =

3.16E-01 3.03E-01 4.47E-02 0.00E+00 9.87E-02 3.55E-02 1.90E-03

Section 4 - Page 9 Catawba Nuclear Station Dose from Fish Pathway for 2014 Data Maximum Exposed Child Child Dose from Fish Pathway (mrem) = Usage (kg) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/kg)

H-3 Concentration in Fish = Surface Water pCi/l x Bioaccumulation Factor 0.9 pCi/kg per pCi/l = 7367 pCi/l x 0.9 = 6630 pCi/kg Usage (intake in one year) =

6.9 kg Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Fish Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/kg)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI Mn-54 NO DATA 1.07E-05 2.85E-06 NO DATA 3.00E-06 NO DATA 8.98E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-58 NO DATA 1.80E-06 5.51E-06 NO DATA NO DATA NO DATA 1.05E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Fe-59 1.65E-05 2.67E-05 1.33E-05 NO DATA NO DATA 7.74E-06 2.78E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C0-60 NO DATA 5.29E-06 1.56E-05 NO DATA NO DATA NO DATA 2.93E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zn-65 1.37E-05 3.65E-05 2.27E-05 NO DATA 2.30E-05 NO DATA 6.41E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 2.34E-04 3.84E-04 8.10E-05 NO DATA 1.19E-04 4.27E-05 2.07E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 3.27E-04 3.13E-04 4.62E-05 NO DATA 1.02E-04 3.67E-05 1.96E-06 208 11.0 2.48E-02 2.38E-02 3.51E-03 0.00E+00 7.74E-03 2.79E-03 1.49E-04 H-3 NO DATA 2.03E-07 2.03E-07 2.03E-07 2.03E-07 2.03E-07 2.03E-07 208 6630 0.00E+00 9.29E-03 9.29E-03 9.29E-03 9.29E-03 9.29E-03 9.29E-03 Dose Commitment (mrem) =

2.48E-02 3.30E-02 1.28E-02 9.29E-03 1.70E-02 1.21E-02 9.44E-03

Section 4 - Page 10 Catawba Nuclear Station Dose from Shoreline Sediment Pathway for 2014 Data Maximum Exposed Child Shoreline Recreation =

14 hr (in one year)

Shore Width Factor =

0.2 Sediment Surface Mass =

40 kg/m2 Child Dose from Shoreline Sediment Pathway (mrem) = Shoreline Recreation (hr) x External Dose Factor (mrem/hr per pCi/m2) x Shore Width Factor x Sediment Surface Mass (kg/m2) x Sediment Concentration (pCi/kg)

External Dose Factor Standing Highest Annual Net Dose on Contaminated Ground Mean Concentration (mrem/hr per pCi/m2)

Indicator Sediment (mrem)

Radionuclide T. Body Skin Location (pCi/kg)

T. Body Skin Mn-54 5.80E-09 6.80E-09 208 68.4 4.44E-05 5.21E-05 Co-58 7.00E-09 8.20E-09 208 887 6.95E-04 8.15E-04 Co-60 1.70E-08 2.00E-08 208 790 1.50E-03 1.77E-03 Cs-134 1.20E-08 1.40E-08 ALL 0.00 0.00E+00 0.00E+00 Cs-137 4.20E-09 4.90E-09 208 24.6 1.16E-05 1.35E-05 Dose Commitment (mrem) =

2.26E-03 2.65E-03

Section 4 - Page 11 Catawba Nuclear Station Dose from Drinking Water Pathway for 2014 Data Maximum Exposed Teen Teen Dose from Drinking Water Pathway (mrem) = Usage (l) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/l)

Usage (intake in one year) =

510 l Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Water Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/l)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI Mn-54 NO DATA 5.90E-06 1.17E-06 NO DATA 1.76E-06 NO DATA 1.21E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-58 NO DATA 9.72E-07 2.24E-06 NO DATA NO DATA NO DATA 1.34E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Fe-59 5.87E-06 1.37E-05 5.29E-06 NO DATA NO DATA 4.32E-06 3.24E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-60 NO DATA 2.81E-06 6.33E-06 NO DATA NO DATA NO DATA 3.66E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zn-65 5.76E-06 2.00E-05 9.33E-06 NO DATA 1.28E-05 NO DATA 8.47E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Nb-95 8.22E-09 4.56E-09 2.51E-09 NO DATA 4.42E-09 NO DATA 1.95E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zr-95 4.12E-08 1.30E-08 8.94E-09 NO DATA 1.91E-08 NO DATA 3.00E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 I-131 5.85E-06 8.19E-06 4.40E-06 2.39E-03 1.41E-05 NO DATA 1.62E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 8.37E-05 1.97E-04 9.14E-05 NO DATA 6.26E-05 2.39E-05 2.45E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 1.12E-04 1.49E-04 5.19E-05 NO DATA 5.07E-05 1.97E-05 2.12E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BaLa-140 2.84E-05 3.48E-08 1.83E-06 NO DATA 1.18E-08 2.34E-08 4.38E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 H-3 NO DATA 1.06E-07 1.06E-07 1.06E-07 1.06E-07 1.06E-07 1.06E-07 214 384 0.00E+00 2.08E-02 2.08E-02 2.08E-02 2.08E-02 2.08E-02 2.08E-02 Dose Commitment (mrem)=

0.00E+00 2.08E-02 2.08E-02 2.08E-02 2.08E-02 2.08E-02 2.08E-02

Section 4 - Page 12 Catawba Nuclear Station Dose from Broadleaf Vegetation Pathway for 2014 Data Maximum Exposed Teen Teen Dose from Vegetation Pathway (mrem) = Usage (kg) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/kg)

Usage (intake in one year) =

42 kg Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Food Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/kg)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI I-131 5.85E-06 8.19E-06 4.40E-06 2.39E-03 1.41E-05 NO DATA 1.62E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 8.37E-05 1.97E-04 9.14E-05 NO DATA 6.26E-05 2.39E-05 2.45E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 1.12E-04 1.49E-04 5.19E-05 NO DATA 5.07E-05 1.97E-05 2.12E-06 201 37.2 1.75E-01 2.33E-01 8.11E-02 0.00E+00 7.92E-02 3.08E-02 3.31E-03 Dose Commitment (mrem) =

1.75E-01 2.33E-01 8.11E-02 0.00E+00 7.92E-02 3.08E-02 3.31E-03

Section 4 - Page 13 Catawba Nuclear Station Dose from Fish Pathway for 2014 Data Maximum Exposed Teen Teen Dose from Fish Pathway (mrem) = Usage (kg) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/kg)

H-3 Concentration in Fish = Surface Water pCi/l x Bioaccumulation Factor 0.9 pCi/kg per pCi/l = 7367 pCi/l x 0.9 = 6630 pCi/kg Usage (intake in one year) =

16 kg Highest Annual Ingestion Dose Factor Net Mean Dose (mrem)

Concentration Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/kg)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI Mn-54 NO DATA 5.90E-06 1.17E-06 NO DATA 1.76E-06 NO DATA 1.21E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-58 NO DATA 9.72E-07 2.24E-06 NO DATA NO DATA NO DATA 1.34E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Fe-59 5.87E-06 1.37E-05 5.29E-06 NO DATA NO DATA 4.32E-06 3.24E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-60 NO DATA 2.81E-06 6.33E-06 NO DATA NO DATA NO DATA 3.66E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zn-65 5.76E-06 2.00E-05 9.33E-06 NO DATA 1.28E-05 NO DATA 8.47E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 8.37E-05 1.97E-04 9.14E-05 NO DATA 6.26E-05 2.39E-05 2.45E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 1.12E-04 1.49E-04 5.19E-05 NO DATA 5.07E-05 1.97E-05 2.12E-06 208 11.0 1.97E-02 2.62E-02 9.13E-03 0.00E+00 8.92E-03 3.47E-03 3.73E-04 H-3 NO DATA 1.06E-07 1.06E-07 1.06E-07 1.06E-07 1.06E-07 1.06E-07 208 6630 0.00E+00 1.12E-02 1.12E-02 1.12E-02 1.12E-02 1.12E-02 1.12E-02 Dose Commitment (mrem) =

1.97E-02 3.75E-02 2.04E-02 1.12E-02 2.02E-02 1.47E-02 1.16E-02

Section 4 - Page 14 Catawba Nuclear Station Dose from Shoreline Sediment Pathway for 2014 Data Maximum Exposed Teen Shoreline Recreation =

67 hr (in one year)

Shore Width Factor =

0.2 Sediment Surface Mass =

40 kg/m2 Teen Dose from Shoreline Sediment Pathway (mrem) = Shoreline Recreation (hr) x External Dose Factor (mrem/hr per pCi/m2) x Shore Width Factor x Sediment Surface Mass (kg/m2) x Sediment Concentration (pCi/kg)

External Dose Factor Standing Highest Annual Net Dose on Contaminated Ground Mean Concentration (mrem/hr per pCi/m2)

Indicator Sediment (mrem)

Radionuclide T. Body Skin Location (pCi/kg)

T. Body Skin Mn-54 5.80E-09 6.80E-09 208 68.4 2.13E-04 2.49E-04 Co-58 7.00E-09 8.20E-09 208 887 3.33E-03 3.90E-03 Co-60 1.70E-08 2.00E-08 208 790 7.20E-03 8.47E-03 Cs-134 1.20E-08 1.40E-08 ALL 0.00 0.00E+00 0.00E+00 Cs-137 4.20E-09 4.90E-09 208 24.6 5.54E-05 6.46E-05 Dose Commitment (mrem) =

1.08E-02 1.27E-02

Section 4 - Page 15 Catawba Nuclear Station Dose from Drinking Water Pathway for 2014 Data Maximum Exposed Adult Adult Dose from Drinking Water Pathway (mrem) = Usage (l) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/l)

Usage (intake in one year) =

730 l Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Water Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/l)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI Mn-54 NO DATA 4.57E-06 8.72E-07 NO DATA 1.36E-06 NO DATA 1.40E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-58 NO DATA 7.45E-07 1.67E-06 NO DATA NO DATA NO DATA 1.51E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Fe-59 4.34E-06 1.02E-05 3.91E-06 NO DATA NO DATA 2.85E-06 3.40E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-60 NO DATA 2.14E-06 4.72E-06 NO DATA NO DATA NO DATA 4.02E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zn-65 4.84E-06 1.54E-05 6.96E-06 NO DATA 1.03E-05 NO DATA 9.70E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Nb-95 6.22E-09 3.46E-09 1.86E-09 NO DATA 3.42E-09 NO DATA 2.10E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zr-95 3.04E-08 9.75E-09 6.60E-09 NO DATA 1.53E-08 NO DATA 3.09E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 I-131 4.16E-06 5.95E-06 3.41E-06 1.95E-03 1.02E-05 NO DATA 1.57E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 6.22E-05 1.48E-04 1.21E-04 NO DATA 4.79E-05 1.59E-05 2.59E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 7.97E-05 1.09E-04 7.14E-05 NO DATA 3.70E-05 1.23E-05 2.11E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 BaLa-140 2.03E-05 2.55E-08 1.33E-06 NO DATA 8.67E-09 1.46E-08 4.18E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 H-3 NO DATA 1.05E-07 1.05E-07 1.05E-07 1.05E-07 1.05E-07 1.05E-07 214 384 0.00E+00 2.94E-02 2.94E-02 2.94E-02 2.94E-02 2.94E-02 2.94E-02 Dose Commitment (mrem) =

0.00E+00 2.94E-02 2.94E-02 2.94E-02 2.94E-02 2.94E-02 2.94E-02

Section 4 - Page 16 Catawba Nuclear Station Dose from Broadleaf Vegetation Pathway for 2014 Data Maximum Exposed Adult Adult Dose from Vegetation (mrem) = Usage (kg) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/kg)

Usage (intake in one year) =

64 kg Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Indicator Food Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/kg)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI I-131 4.16E-06 5.95E-06 3.41E-06 1.95E-03 1.02E-05 NO DATA 1.57E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 6.22E-05 1.48E-04 1.21E-04 NO DATA 4.79E-05 1.59E-05 2.59E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 7.97E-05 1.09E-04 7.14E-05 NO DATA 3.70E-05 1.23E-05 2.11E-06 201 37.2 1.90E-01 2.60E-01 1.70E-01 0.00E+00 8.81E-02 2.93E-02 5.02E-03 Dose Commitment (mrem) =

1.90E-01 2.60E-01 1.70E-01 0.00E+00 8.81E-02 2.93E-02 5.02E-03

Section 4 - Page 17 Catawba Nuclear Station Dose from Fish Pathway for 2014 Data Maximum Exposed Adult Adult Dose from Fish Pathway (mrem) = Usage (kg) x Dose Factor (mrem/pCi ingested) x Concentration (pCi/kg)

H-3 Concentration in Fish = Surface Water pCi/l x Bioaccumulation Factor 0.9 pCi/kg per pCi/l = 7367 pCi/l x 0.9 = 6630 pCi/kg Usage (intake in one year) =

21 kg Highest Annual Net Mean Ingestion Dose Factor Concentration Dose (mrem)

Radionuclide Bone Liver T. Body Thyroid Kidney Lung GI-LLI Location (pCi/kg)

Bone Liver T. Body Thyroid Kidney Lung GI-LLI Mn-54 NO DATA 4.57E-06 8.72E-07 NO DATA 1.36E-06 NO DATA 1.40E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-58 NO DATA 7.45E-07 1.67E-06 NO DATA NO DATA NO DATA 1.51E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Fe-59 4.34E-06 1.02E-05 3.91E-06 NO DATA NO DATA 2.85E-06 3.40E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Co-60 NO DATA 2.14E-06 4.72E-06 NO DATA NO DATA NO DATA 4.02E-05 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Zn-65 4.84E-06 1.54E-05 6.96E-06 NO DATA 1.03E-05 NO DATA 9.70E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-134 6.22E-05 1.48E-04 1.21E-04 NO DATA 4.79E-05 1.59E-05 2.59E-06 ALL 0.00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 Cs-137 7.97E-05 1.09E-04 7.14E-05 NO DATA 3.70E-05 1.23E-05 2.11E-06 208 11.0 1.84E-02 2.52E-02 1.65E-02 0.00E+00 8.55E-03 2.84E-03 4.87E-04 H-3 NO DATA 1.05E-07 1.05E-07 1.05E-07 1.05E-07 1.05E-07 1.05E-07 208 6630 0.00E+00 1.46E-02 1.46E-02 1.46E-02 1.46E-02 1.46E-02 1.46E-02 Dose Commitment (mrem) =

1.84E-02 3.98E-02 3.11E-02 1.46E-02 2.32E-02 1.75E-02 1.51E-02

Section 4 - Page 18 Catawba Nuclear Station Dose from Shoreline Sediment Pathway for 2014 Data Maximum Exposed Adult Shoreline Recreation =

12 hr (in one year)

Shore Width Factor =

0.2 Sediment Surface Mass =

40 kg/m2 Adult Dose from Shoreline Sediment Pathway (mrem) = Shoreline Recreation (hr) x External Dose Factor (mrem/hr per pCi/m2) x Shore Width Factor x Sediment Surface Mass (kg/m2) x Sediment Concentration (pCi/kg)

External Dose Factor Standing Highest Annual Net Dose on Contaminated Ground Mean Concentration (mrem)

(mrem/hr per pCi/m2)

Indicator Sediment Radionuclide T. Body Skin Location (pCi/kg)

T. Body Skin Mn-54 5.80E-09 6.80E-09 208 68.4 3.81E-05 4.47E-05 Co-58 7.00E-09 8.20E-09 208 887 5.96E-04 6.98E-04 Co-60 1.70E-08 2.00E-08 208 790 1.29E-03 1.52E-03 Cs-134 1.20E-08 1.40E-08 ALL 0.00 0.00E+00 0.00E+00 Cs-137 4.20E-09 4.90E-09 208 24.6 9.92E-06 1.16E-05 Dose Commitment (mrem) =

1.93E-03 2.27E-03

Section 5 - Page 1 5.0 QUALITY ASSURANCE 5.1 SAMPLE COLLECTION EnRad Laboratories, Fisheries, and Aquatic Ecology performed the environmental sample collections as specified by approved sample collection procedures.

5.2 SAMPLE ANALYSIS EnRad Laboratories performed the environmental sample analyses as specified by approved analysis procedures. EnRad Laboratories is located in Huntersville, North Carolina, at Duke Energys Environmental Center.

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

5.4 LABORATORY EQUIPMENT QUALITY ASSURANCE 5.4.1 DAILY QUALITY CONTROL EnRad Laboratories has an internal quality assurance program which monitors each type of instrumentation for reliability and accuracy. Daily quality control checks ensure that instruments are in proper working order and these checks are used to monitor instrument performance.

5.4.2 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.

5.4.3 BATCH PROCESSING Method quality control samples are analyzed with sample analyses that are processed in batches. These include gross beta in drinking water and tritium analyses.

5.5 DUKE ENERGY INTERLABORATORY COMPARISON PROGRAM In 2014 Duke Energy Environmental Laboratory (EnRad) participated in interlaboratory programs to satisfy Radiological Environmental Monitoring Program

Section 5 - Page 2 requirements in Duke Energy nuclear plant Offsite Dose Calculation Manuals and Selected Licensee Commitments Manuals, as applicable. In addition, EnRad Laboratory participated in the Environmental Resource Associates (ERA)

RadCheMTM Proficiency Testing program to satisfy the North Carolina state drinking water radiochemistry certification requirements.

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

A low-level Iodine-131 in water cross check was not performed during 2014, but was performed during 2013. A low-level Iodine-131 in milk cross check was performed during 2014. The preparation and analysis of both media (milk and water) for the low-level Iodine-131 analysis is accomplished using the EnRad procedure 54, Preparation of Samples for low-level I-131 Analysis. Low-level Iodine-131 sample preparation and testing for both media is a similar process. A low-level Iodine-131 cross check in water is scheduled for the second quarter 2015 cross check program.

Low-level Iodine-131 analysis of water was not required during 2014 since the dose calculated for the consumption of the water was not greater than 1 mrem per year in any supported program (PIP G-15-00781 or CR # 744148).

5.5.1 DUKE ENERGY INTERCOMPARISON PROGRAM EnRad Laboratories participated in the Duke Energy Fleet Scientific Services (FSS) Intercomparison Program during 2014. Interlaboratory cross-check samples, including gamma in water (Marinelli beakers), low-level I-131 in milk, and tritium in water samples were analyzed during 2014. A summary of the EnRad Laboratory program results for 2014 is documented in Table 5.0-A.

5.5.2 ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM EnRad Laboratories participated in the Eckert & Ziegler Analytics Cross Check Program during 2014. Cross-check samples including air filters, air cartridges, gross beta in water, various gamma samples in Marinelli beakers (soil, vegetation, and milk), and Iodine in milk samples were analyzed at various times of the year. A summary of the EnRad Laboratory program results for 2014 is documented in Table 5.0-B.

5.5.3 ERA PROFICIENCY TESTING EnRad Laboratories performed method proficiency testing through a program administered by Environmental Resource Associates (ERA) of Arvada, CO.

Section 5 - Page 3 ERA supplied requested method proficiency samples for analysis and nuclide concentration determination. ERA reported proficiency test results to the North Carolina Department of Health and Human Services, North Carolina Public Health Drinking Water Laboratory Certification Program. A summary of these proficiency test data for 2014 is documented in Table 5.0-C.

5.6 DUKE ENERGY AUDITS The Catawba Nuclear Station Radiological Environmental Monitoring Program was audited by the Quality Assurance Group in 2014. No environmental monitoring issues were identified.

5.7 U.S. NUCLEAR REGULATORY COMMISSION INSPECTIONS The Catawba Nuclear Station Radiological Environmental Monitoring Program was not audited by the NRC in 2014, but was audited by the NRC in 2013. No findings were noted in the 2013 audit report.

5.8 INTERCOMPARISON PROGRAM Catawba Nuclear Station routinely participates in an environmental sample intercomparison program. Program elements include sampling frequency and analysis parameters for drinking water, surface water, milk, fish, broadleaf vegetation, and shoreline sediment samples that have been collected. Samples are routinely split with a vendor laboratory for intercomparison analysis.

5.9 TLD INTERCOMPARISON PROGRAM 5.9.1 NUCLEAR TECHNOLOGY SERVICES INTERCOMPARISON PROGRAM Radiation Dosimetry and Records participates in a quarterly TLD intercomparison program administered by Nuclear Technology Services, Inc.

of Roswell, GA. Nuclear Technology Services irradiates environmental dosimeters quarterly and sends them to the Radiation Dosimetry and Records group for analysis of the unknown estimated delivered exposure. A summary of the 2014 Nuclear Technology Services Intercomparison Report is documented in Table 5.0-D. The individual measurements were evaluated and results falling outside the acceptable ratio criteria had an evaluation performed to identify any recommended remedial actions and to reduce anomalous errors. Complete documentation of any evaluation will be available and provided to the NRC upon request.

5.9.2 INTERNAL CROSSCHECK (DUKE ENERGY)

Radiation Dosimetry and Records participates in a quarterly TLD intracomparison program administered internally by the Dosimetry Lab. The

Section 5 - Page 4 Dosimetry Lab Staff irradiates environmental dosimeters quarterly and submits them for analysis of the unknown estimated delivered exposure. A summary of the 2014 Internal Cross Check (Duke Energy) Result is documented in Table 5.0-D.

Section 5 - Page 5 TABLE 5.0-A DUKE ENERGY INTERLABORATORY COMPARISON PROGRAM 2014 EnRad Fleet Scientific Services Cross Check Performance Summary Cross check samples were distributed by Fleet Scientific Services (FSS) in accordance with Duke Energy Nuclear Generation Procedure SRPMP 9-2. Seven water samples were analyzed for tritium and gamma emitters, while three milk samples were analyzed for low-level I-131. The below table lists results for specific analyses. Fifty-eight results were evaluated as prescribed in procedure SRPMP 9-2. The acceptance criteria for the program was based on the NRC Inspection Manual Procedure 84750 (IP 84750). These results passed the acceptance criteria for the program.

Milk LLI-131 3

pCi/L 3.04E+03 2.96E+03 1.03 Agreement 3

pCi/L 3.06E+03 2.96E+03 1.03 Agreement 3

pCi/L 3.07E+03 2.96E+03 1.04 Agreement 3

pCi/L 1.25E+03 1.27E+03 0.98 Agreement 3

pCi/L 1.24E+03 1.27E+03 0.97 Agreement 3

pCi/L 4.64E+02 4.58E+02 1.01 Agreement 3

pCi/L 4.70E+02 4.58E+02 1.03 Agreement Tritium in Water Q143TWR1 H-3 3

pCi/L 1.77E+03 1.85E+03 0.96 Agreement 3

pCi/L 1.79E+03 1.85E+03 0.97 Agreement 3

pCi/L 1.78E+03 1.85E+03 0.96 Agreement Q143TWR2 H-3 3

pCi/L 1.76E+05 1.81E+05 0.97 Agreement 3

pCi/L 1.75E+05 1.81E+05 0.96 Agreement Tritium in Water Q141TWR1 H-3 1

pCi/L 1.10E+03 1.05E+03 1.05 Agreement 1.14E+03 1.05E+03 1.09 Agreement 1.11E+03 1.05E+03 1.06 Agreement Q141TWR2 H-3 1

pCi/L 7.04E+03 7.46E+03 0.94 Agreement 7.03E+03 7.46E+03 0.94 Agreement 7.16E+03 7.46E+03 0.96 Agreement Q141TWR3 H-3 1

pCi/L 3.13E+03 3.21E+03 0.98 Agreement 3.11E+03 3.21E+03 0.97 Agreement 3.13E+03 3.21E+03 0.98 Agreement Quarter Units EnRad Value FSS Value EnRad/FSS Ratio Evaluation Q143LIM2 Q143LIM3 I-131 I-131 Sample Sample ID Nuclide Q143LIM1 I-131

Section 5 - Page 6 TABLE 5.0-A (Cont.)

Gamma in Water Q143GWSL-1.0 L Cr-51 3

pCi/L 1.71E+05 1.80E+05 0.95 Agreement 3

pCi/L 1.70E+05 1.80E+05 0.95 Agreement Mn-54 3

pCi/L 6.34E+04 5.99E+04 1.06 Agreement 3

pCi/L 6.35E+04 5.99E+04 1.06 Agreement Co-58 3

pCi/L 6.80E+04 6.89E+04 0.99 Agreement 3

pCi/L 6.81E+04 6.89E+04 0.99 Agreement Fe-59 3

pCi/L 8.72E+04 8.38E+04 1.04 Agreement 3

pCi/L 8.75E+04 8.38E+04 1.04 Agreement Co-60 3

pCi/L 1.27E+05 1.22E+05 1.04 Agreement 3

pCi/L 1.26E+05 1.22E+05 1.03 Agreement Zn-65 3

pCi/L 3.52E+04 3.12E+04 1.13 Agreement 3

pCi/L 3.53E+04 3.12E+04 1.13 Agreement Cs-134 3

pCi/L 5.97E+04 6.35E+04 0.91 Agreement 3

pCi/L 5.95E+04 6.53E+04 0.91 Agreement Cs-137 3

pCi/L 8.01E+04 7.87E+04 1.02 Agreement 3

pCi/L 7.98E+04 7.87E+04 1.01 Agreement Ce-141 3

pCi/L 7.13E+04 7.65E+04 0.93 Agreement 3

pCi/L 7.24E+04 7.65E+04 0.95 Agreement Q143GWSL-3.5 L Cr-51 3

pCi/L 1.76E+05 1.80E+05 0.98 Agreement 3

pCi/L 1.73E+05 1.80E+05 0.96 Agreement Mn-54 3

pCi/L 6.32E+04 5.99E+04 1.06 Agreement 3

pCi/L 6.31E+04 5.99E+04 1.05 Agreement Co-58 3

pCi/L 6.89E+04 6.89E+04 1.00 Agreement 3

pCi/L 6.84E+04 6.89E+04 0.99 Agreement Fe-59 3

pCi/L 8.54E+04 8.38E+04 1.02 Agreement 3

pCi/L 8.69E+04 8.38E+04 1.04 Agreement Co-60 3

pCi/L 1.28E+05 1.22E+05 1.05 Agreement 3

pCi/L 1.27E+05 1.22E+05 1.04 Agreement Zn-65 3

pCi/L 3.42E+04 3.12E+04 1.10 Agreement 3

pCi/L 3.45E+04 3.12E+04 1.11 Agreement Cs-134 3

pCi/L 6.39E+04 6.53E+04 0.98 Agreement 3

pCi/L 6.17E+04 6.53E+04 0.95 Agreement Cs-137 3

pCi/L 8.11E+04 7.87E+04 1.03 Agreement 3

pCi/L 8.08E+04 7.87E+04 1.03 Agreement Ce-141 3

pCi/L 7.39E+04 7.65E+04 0.97 Agreement 3

pCi/L 7.36E+04 7.65E+04 0.96 Agreement Sample Sample ID Nuclide Quarter Units FSS Value EnRad/FSS Ratio Evaluation EnRad Value

Section 5 - Page 7 TABLE 5.0-B ECKERT & ZIEGLER ANALYTICS CROSS CHECK PROGRAM 2014 Cross Check Results for EnRad Laboratories Cross check samples are received, prepared, and analyzed in all four quarters of 2014. Results are reported directly to Eckert & Ziegler Analytics. Environmental cross check samples were analyzed in replicate, and the result closest to the mean is reported to Eckert & Ziegler Analytics. The acceptance criteria for the program was based on the NRC Inspection Manual Procedure 84750 (IP 84750). Fifty environmental results were reported, of which 49 (98%) met the acceptance criteria based on IP 84750.

Beta Filter in Planchet E10901 Gross Beta 2

pCi 201 199 1.01 Agreement Gamma in Soil E10904 Ce-141 2

pCi/g 0.23 0.24 0.96 Agreement Cr-51 2

pCi/g 0.48 0.49 0.98 Agreement Cs-134 2

pCi/g 0.24 0.32 0.76 Non-Agreement*

Cs-137 2

pCi/g 0.27 0.31 0.86 Agreement Co-58 2

pCi/g 0.18 0.22 0.83 Agreement Mn-54 2

pCi/g 0.29 0.3 0.96 Agreement Fe-59 2

pCi/g 0.2 0.2 1.01 Agreement Zn-65 2

pCi/g 0.49 0.49 1.00 Agreement Co-60 2

pCi/g 0.41 0.44 0.94 Agreement I-131 in Milk E10801 I-131 1

pCi/L 93.8 99.8 0.94 Agreement Gross Beta in Water E10905 Gross Beta 2

pCi/L 265 249 1.06 Agreement I-131 Charcoal Cartridge E10802 I-131 1

pCi 76.1 75.1 1.01 Agreement E10902 Ce-141 2

pCi/g 0.22 0.24 0.91 Agreement Cr-51 2

pCi/g 0.42 0.5 0.85 Agreement Cs-134 2

pCi/g 0.28 0.32 0.88 Agreement Cs-137 2

pCi/g 0.22 0.24 0.94 Agreement Co-58 2

pCi/g 0.21 0.22 0.96 Agreement Mn-54 2

pCi/g 0.28 0.3 0.92 Agreement Fe-59 2

pCi/g 0.19 0.2 0.95 Agreement Zn-65 2

pCi/g 0.44 0.49 0.89 Agreement Co-60 2

pCi/g 0.38 0.44 0.87 Agreement

See PIP G-14-01710 Evaluation EnRad Value EZA Value EnRad/EZA Ratio Sample Sample ID Nuclide Quarter Units Gamma in Vegetation (Coffee Grounds)

Section 5 - Page 8 TABLE 5.0-B (Cont.)

E10987 Ce-141 3

pCi 64.1 62.6 1.02 Agreement Cr-51 3

pCi 135 143 0.94 Agreement Cs-134 3

pCi 74.6 78.3 0.95 Agreement Cs-137 3

pCi 97.8 95.9 1.02 Agreement Co-58 3

pCi 71.7 71 1.01 Agreement Mn-54 3

pCi 69.5 70.4 0.99 Agreement Fe-59 3

pCi 86.8 78.4 1.11 Agreement Zn-65 3

pCi 37 36.2 1.02 Agreement Co-60 3

pCi 161 148 1.09 Agreement Gamma in Milk E10800 I-131 1

pCi/L 97.3 98.5 0.99 Agreement Ce-141 1

pCi/L 120 119 1.01 Agreement Cr-51 1

pCi/L 505 491 1.03 Agreement Cs-134 1

pCi/L 192 210 0.92 Agreement Cs-137 1

pCi/L 255 253 1.01 Agreement Co-58 1

pCi/L 274 268 1.02 Agreement Mn-54 1

pCi/L 314 297 1.06 Agreement Fe-59 1

pCi/L 232 219 1.06 Agreement Zn-65 1

pCi/L 318 323 0.99 Agreement Co-60 1

pCi/L 335 337 0.99 Agreement Gamma in Soil E11051 Ce-141 4

pCi/g 0.31 0.35 0.89 Agreement Cr-51 4

pCi/g 0.61 0.648 0.94 Agreement Cs-134 4

pCi/g 0.25 0.263 0.95 Agreement Cs-137 4

pCi/g 0.36 0.396 0.91 Agreement Co-58 4

pCi/g 0.19 0.208 0.91 Agreement Mn-54 4

pCi/g 0.35 0.36 0.97 Agreement Fe-59 4

pCi/g 0.27 0.279 0.97 Agreement Zn-65 4

pCi/g 0.46 0.474 0.97 Agreement Co-60 4

pCi/g 0.34 0.375 0.91 Agreement Evaluation Sample Sample ID Nuclide Quarter Units Gamma in Composite Filter EnRad Value EZA Value EnRad/EZA Ratio

Section 5 - Page 9 TABLE 5.0-C ENVIRONMENTAL RESOURCE ASSOCIATES (ERA)

PROFICIENCY TESTING 2014 Proficiency Test Results for EnRad Laboratories North Carolina Department of Health and Human Services Laboratory Certification EnRad Laboratories Proficiency test samples are received, prepared, and analyzed in second and fourth quarters of 2014. Results are reported directly to Environmental Resource Associates as described in the instruction package within the study period. Proficiency test data are reported to ERA for evaluation. The acceptance criteria for the program was based on the National Environmental Laboratory Accreditation Conference (NELAC) Field of Proficiency Testing criteria. Fourteen results were reported of which 14 (100 %) met the acceptance criteria. ERA reports proficiency test results to the North Carolina Department of Health and Human Services, North Carolina Public Drinking Water Laboratory Certification Program. This testing is to satisfy the North Carolina state drinking water radiochemistry certification requirements.

Gamma Emitters in Water RAD-97 Ba-133 2

pCi/L 87.51 87.9 74.0 - 96.7 Agreement Cs-134 2

pCi/L 41.01 44.3 35.5 - 48.7 Agreement Cs-137 2

pCi/L 85.47 89.1 80.2 - 101 Agreement Co-60 2

pCi/L 62.75 64.2 57.8 - 73.1 Agreement Zn-65 2

pCi/L 249.8 235 212 - 275 Agreement Gamma Emitters in Water RAD-99 Ba-133 4

pCi/L 46.9 49.1 40.3 - 54.5 Agreement Cs-134 4

pCi/L 81.7 89.8 73.7 - 98.8 Agreement Cs-137 4

pCi/L 96.9 98.8 88.9 - 111 Agreement Co-60 4

pCi/L 91 92.1 82.9 - 104 Agreement Zn-65 4

pCi/L 335 310 279 - 362 Agreement Tritium in Water RAD-97 H-3 2

pCi/L 8680 8770 7610 - 9650 Agreement RAD-99 H-3 4

pCi/L 6290 6880 5940 - 7570 Agreement Iodine-131 in Water RAD-97 I-131 2

pCi/L 25.9 25.7 21.3 - 30.3 Agreement RAD-99 I-131 4

pCi/L 20.4 20.3 16.8 - 24.4 Agreement ERA Value Acceptance Limits Evaluation Sample Sample ID Nuclide Quarter Units EnRad Value

Section 5 - Page 10 TABLE 5.0-D 2014 ENVIRONMENTAL DOSIMETER CROSS-CHECK RESULTS Nuclear Technology Services Radiation Dosimetry and Records participates in a quarterly TLD intercomparison program administered by Nuclear Technology Services, Inc. of Roswell, GA. Nuclear Technology Services irradiates environmental dosimeters quarterly and sends them to the Radiation Dosimetry and Records group for analysis of the unknown estimated delivered exposure. The individual measurements were evaluated and results falling outside the acceptable ratio criteria had an evaluation performed to identify any recommended remedial actions and to reduce anomalous errors. Complete documentation of any evaluation will be available and provided to the NRC upon request.

- Refer to PIP G-15-00554 1st Quarter 2014 2nd Quarter 2014 TLD Reported Delivered Bias Pass/Fail TLD Reported Delivered Bias Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail 102403 93.2 90.40 3.12

<+/-15%

Pass 102196 18.07 18.66

-3.16

<+/-15%

Pass 103045 99.3 90.40 9.87

<+/-15%

Pass 102193 19.44 18.66 4.18

<+/-15%

Pass 103009 101.0 90.40 11.76

<+/-15%

Pass 102192 17.28 18.66

-7.40

<+/-15%

Pass 102243 90.3 90.40

-0.09

<+/-15%

Pass 102176 17.70 18.66

-5.14

<+/-15%

Pass 102858 97.9 90.40 8.33

<+/-15%

Pass 102175 18.66 18.66 0.00

<+/-15%

Pass Average Bias (B) 6.60 Average Bias (B)

-2.30 Standard Deviation (S) 4.93 Standard Deviation (S) 4.53 Measure Performance lBl+S 11.53

<15%

Pass Measure Performance lBl+S 6.83

<15%

Pass 3rd Quarter 2014 4th Quarter 2014 TLD Reported Delivered Bias Pass/Fail TLD Reported Delivered Bias Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail 103705 70.04 69.7 0.49

<+/-15%

Pass 101241 84.63 77.7 8.92

<+/-15%

Pass 103704 69.36 69.7

-0.49

<+/-15%

Pass 103494 87.46 77.7 12.56

<+/-15%

Pass 103686 71.90 69.7 3.16

<+/-15%

Pass 103229 88.45 77.7 13.84

<+/-15%

Pass 103685 72.82 69.7 4.48

<+/-15%

Pass 103493 89.19 77.7 14.79

<+/-15%

Pass 103517 73.71 69.7 5.75

<+/-15%

Pass 103044 91.02 77.7 17.14

<+/-15%

- Fail Average Bias (B) 2.68 Average Bias (B) 13.45 Standard Deviation (S) 2.63 Standard Deviation (S) 3.04 Measure Performance lBl+S 5.31

<15%

Pass Measure Performance lBl+S 16.49

<15%

- Fail

Section 5 - Page 11 TABLE 5.0-D (Cont.)

Internal Crosscheck (Duke Energy)

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

1st Quarter 2014 2nd Quarter 2014 TLD Reported Delivered Bias Pass/Fail TLD Reported Delivered Bias Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail 101221 30.14 32.7

-7.83

<+/-15%

Pass 103635 22.36 21.8 2.57

<+/-15%

Pass 102801 32.82 32.7 0.37

<+/-15%

Pass 102777 22.93 21.8 5.18

<+/-15%

Pass 100019 30.32 32.7

-7.28

<+/-15%

Pass 103181 22.78 21.8 4.50

<+/-15%

Pass 103173 32.14 32.7

-1.71

<+/-15%

Pass 103218 22.82 21.8 4.68

<+/-15%

Pass 100085 30.90 32.7

-5.50

<+/-15%

Pass 103657 22.29 21.8 2.25

<+/-15%

Pass 101024 30.92 32.7

-5.44

<+/-15%

Pass 102927 21.90 21.8 0.46

<+/-15%

Pass 100350 30.73 32.7

-6.02

<+/-15%

Pass 103396 21.54 21.8

-1.19

<+/-15%

Pass 102359 30.71 32.7

-6.09

<+/-15%

Pass 102723 22.84 21.8 4.77

<+/-15%

Pass 103174 30.26 32.7

-7.46

<+/-15%

Pass 103394 22.47 21.8 3.07

<+/-15%

Pass 101376 31.49 32.7

-3.70

<+/-15%

Pass 103058 22.36 21.8 2.57

<+/-15%

Pass Average Bias (B)

-5.07 Average Bias (B) 2.89 Standard Deviation (S) 2.65 Standard Deviation (S) 2.05 Measure Performance lBl+S 7.72

<15%

Pass Measure Performance lBl+S 4.93

<15%

Pass 3rd Quarter 2014 4th Quarter 2014 TLD Reported Delivered Bias Pass/Fail TLD Reported Delivered Bias Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail Number (mR)

(mR)

(% diff)

Criteria Pass/Fail 102737 47.05 43.6 7.91

<+/-15%

Pass 102768 57.48 54.5 5.47

<+/-15%

Pass 102750 46.06 43.6 5.64

<+/-15%

Pass 103263 55.38 54.5 1.61

<+/-15%

Pass 102773 48.32 43.6 10.83

<+/-15%

Pass 103453 56.30 54.5 3.30

<+/-15%

Pass 102824 45.81 43.6 5.07

<+/-15%

Pass 102746 54.25 54.5

-0.46

<+/-15%

Pass 102397 44.38 43.6 1.79

<+/-15%

Pass 103656 56.09 54.5 2.92

<+/-15%

Pass 102832 46.37 43.6 6.35

<+/-15%

Pass 102482 53.50 54.5

-1.83

<+/-15%

Pass 102725 47.00 43.6 7.80

<+/-15%

Pass 103446 54.71 54.5 0.39

<+/-15%

Pass 102481 45.21 43.6 3.69

<+/-15%

Pass 103339 53.55 54.5

-1.74

<+/-15%

Pass 102758 45.97 43.6 5.44

<+/-15%

Pass 103582 53.97 54.5

-0.97

<+/-15%

Pass 103120 46.87 43.6 7.50

<+/-15%

Pass 103288 55.43 54.5 1.71

<+/-15%

Pass Average Bias (B) 6.20 Average Bias (B) 1.04 Standard Deviation (S) 2.51 Standard Deviation (S) 2.40 Measure Performance lBl+S 8.71

<15%

Pass Measure Performance lBl+S 3.44

<15%

Pass

Appendix A - Page 1 APPENDIX A ENVIRONMENTAL SAMPLING ANALYSIS PROCEDURES

Appendix A - Page 2 APPENDIX A ENVIRONMENTAL SAMPLING AND ANALYSIS PROCEDURES Adherence to established procedures for sampling and analysis of all environmental media at Catawba Nuclear Station was required to ensure compliance with Station Selected Licensee Commitments. Analytical procedures were employed to ensure that Selected Licensee Commitments detection capabilities were achieved.

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

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

I. CHANGE OF SAMPLING PROCEDURES Indicator location 208 (AP/AR) and indicator location 261 (AP/AR) added to the program as replacement locations for indicator location 205 (AP/AR), which was removed from the program (PIP C-12-08826, PIP G-14-02551).

Indicator location 205 (TLD) was relocated (PIP G-14-02551).

Indicator location 254 (Ground Water) removed from the program (PIP G-14-02551).

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

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

Tritium analyses are performed quarterly by using low-level environmental liquid scintillation analysis technique on a Packard 2550 liquid scintillation system or Perkin-

Appendix A - Page 3 Elmer 2900TR liquid scintillation system. Tritium samples are distilled and batch processed with a laboratory fortified blank, matrix spike, matrix spike duplicate, and blank to verify instrument performance and sample preparation technique are acceptable.

Gross beta analysis is performed by concentrating a designated aliquot of sample precipitate and analyzing by Tennelec XLB Series 5 gas-flow proportional counters.

Samples are batch processed with a blank to ensure sample contamination has not occurred.

III. CHANGE OF ANALYSIS PROCEDURES REMP analytical results reporting with 2 Sigma error was initiated during 2014, replacing the 1 Sigma error reporting (PIP G-14-01981).

Low-level Iodine-131 (LLI-131) test components were modified to include only the LLI-131 component; all other components such as Berrylium-7 and Potassium-40 were removed (PIP G-14-02526).

Gamma spectroscopy milk Iodine-131 MDA requirement was removed from the GAMMAMILK analysis as the required low-level Iodine-131 (LLI-131) requirement is satisfied by the GAMMALLI LLI-131 preparation and testing procedure and gamma spectroscopy analysis (PIP G-14-02692).

The gamma spectroscopy system was replaced during 2014 (10JUL2014). Gamma spectroscopy system hardware, detector cooling apparatus, software, electronics, nuclide identification libraries, and analytical test matrix components for test matrices were modified (PIP G-15-000625).

IV. SAMPLING AND ANALYSIS PROCEDURES A.1 AIRBORNE PARTICULATE AND RADIOIODINE Airborne particulate and radioiodine samples at each of six locations were composited continuously by means of continuous air samplers. Air particulates were collected on a particulate filter and radioiodines were collected in a charcoal cartridge positioned behind the filter in the sampler. The samplers are designed to operate at a constant flow rate (in order to compensate for any filter loading) and are set to sample approximately 2 cubic feet per minute. Filters and cartridges were collected weekly. A separate weekly gamma analysis was performed on each charcoal cartridge. A weekly gross beta analysis was performed on each filter. A quarterly gamma analysis was performed on the quarterly filter composite (by location). The continuous composite samples were collected from the locations listed below.

Location 200 = Site Boundary (0.63 mi. NNE)

Appendix A - Page 4 Location 201 = Site Boundary (0.53 mi. NE)

Location 208 = Discharge Canal (0.45 mi. S)

Location 212 = Tega Cay (3.32 mi. E)

Location 258 = Fairhope Road (9.84 mi. W)(Control)

Location 261 = Site Boundary (0.72 mi. N)

A.2 DRINKING WATER Monthly composite drinking water samples were collected at each of two locations. A gross beta and gamma analysis was performed on monthly composites. Tritium analysis was performed on the quarterly composites. The composites were collected monthly from the locations listed below.

Location 214 = Rock Hill Water Supply (7.30 mi. SSE)

Location 218 = Belmont Water Supply (13.5 mi. NNE)(Control)

A.3 SURFACE WATER Monthly composite samples were collected at each of three locations. A gamma analysis was performed on the monthly composites. Tritium analysis was performed on the quarterly composites. The composites were collected monthly from the locations listed below.

Location 208 = Discharge Canal (0.45 mi. S)

Location 211 = Wylie Dam (4.06 mi. ESE)

Location 215 = River Pointe - Hwy 49 (4.21 mi. NNE)(Control)

A.4 GROUND WATER Grab samples were collected quarterly from a residential well at one location. A gamma analysis and tritium analysis were performed on each sample. The samples were collected from the location listed below.

Location 254 = Residence (0.82 mi. N)

A.5 MILK Biweekly grab samples were collected at one location. A gamma and low-level Iodine-131 analysis was performed on each sample. The biweekly grab samples were collected from the location listed below.

Location 221 = Dairy (14.5 mi. NW)(Control)

Appendix A - Page 5 A.6 BROADLEAF VEGETATION Monthly samples were collected at each of five locations. A gamma analysis was performed on each sample. The samples were collected from the locations listed below.

Location 200 = Site Boundary (0.63 mi. NNE)

Location 201 = Site Boundary (0.53 mi. NE)

Location 222 = Site Boundary (0.70 mi. N)

Location 226 = Site Boundary (0.48 mi. S)

Location 258 = Fairhope Road (9.84 mi. W)(Control)

A.7 FOOD PRODUCTS Monthly samples were collected when available during the harvest season at one location. A gamma analysis was performed on each sample. The samples were collected from the location listed below.

Location 260 = Irrigated Gardens (2.00 mi. SSE)

A.8 FISH Semiannual samples were collected at each of two locations. A gamma analysis was performed on the edible portions of each sample. Boney fish (i.e. Sunfish) were prepared whole minus the head and tail portions. The samples were collected from the locations listed below.

Location 208 = Discharge Canal (0.45 mi. S)

Location 216 = Hwy 49 Bridge (4.19 mi. NNE)(Control)

A.9 SHORELINE SEDIMENT Semiannual samples were collected at each of three 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 208 = Discharge Canal (0.45 mi. S)

Location 210 = Ebenezer Access (2.31 mi. SE)

Location 215 = River Pointe - Hwy 49 (4.21 mi. NNE)(Control)

Appendix A - Page 6 A.10 DIRECT GAMMA RADIATION (TLD)

Thermoluminescent dosimeters (TLD) were collected quarterly at forty-one 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 16 TLDs, one in each meteorological sector in the general area of the site boundary.

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

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

A.11 ANNUAL LAND USE CENSUS An Annual Land Use Census was conducted to identify within a distance of 8 kilometers (5.0 miles) from the station, the nearest location from the site boundary in each of the sixteen meteorological sectors, the following:

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

The census was conducted during the growing season from 7/9 - 7/10/2014.

Results are shown in Table 3.11. No changes were made to the sampling procedures during 2014 as a result of the 2014 census.

V.

GLOBAL POSITIONING SYSTEM (GPS) ANALYSIS The Catawba site centerline used for GPS measurements was referenced from the Catawba Nuclear Station Updated Final Safety Analysis Report (UFSAR), section 2.1.1.1, Specification of Location. Waypoint coordinates used for CNS GPS measurements were latitude 35°-3'-5"N and longitude 81°-4'-10"W. Maps and tables were generated using North American Datum (NAD) 27. Data normally reflect accuracy to within 2 to 5 meters from point of measurement. All GPS field measurements were taken as close as possible to the item of interest. Distances for the locations are displayed using three significant figures.

Appendix B - Page 1 APPENDIX B RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

OF RESULTS 2014

Appendix B - Page 2 CATAWBA NUCLEAR STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

Catawba Nuclear Station Docket Numbers 50-413, 414 York County, South Carolina Calendar Year 2014 Medium or Pathway Sampled or Measured (Unit of Measurement)

Type and Total No. of Measurements Performed Lower Limit of Detection (LLD)(1)

All Indicator Locations(2) (3)

Mean Range Location w/Highest Annual Mean Control Locations Mean Range(2) (3)

Name, Distance, and Direction Mean Range(2) (3)

No. of Non-Routine Report Meas.

Air Particulate (pCi/m3)

Gross Beta 312 See Table 2.2-C 1.95E-2 (260/260) 8.29E 2.95E-2 208 (0.45 mi S) 1.99E-2 (52/52) 1.05E 2.88E-2 258 (9.84 mi W) 1.81E-2 (52/52) 6.09E 2.73E-2 0

Gamma 24 See Table 2.2-C All less than LLD All less than LLD 0

Air Radioiodine (pCi/m3)

Gamma 312 See Table 2.2-C All less than LLD All less than LLD 0

Drinking Water (pCi/l)

Gross Beta 26 4

1.96 (13/13) 0.95 - 2.81 214 (7.30 mi SSE) 1.96 (13/13) 0.95 - 2.81 218 (13.5 mi NNE) 1.79 (13/13) 0.88 - 2.68 0

Gamma 26 See Table 2.2-C All less than LLD All less than LLD 0

Tritium 8

2000 821 (4/4) 497 - 1130 214 (7.30 mi SSE) 821 (4/4) 497 - 1130 218 (13.5 mi NNE) 437 (4/4) 380 - 518 0

Surface Water (pCi/l)

Gamma 39 Co-58 See Table 2.2-C 7.23 (2/26) 6.53 - 7.93 208 (0.45 mi S) 7.23 (2/13) 6.53 - 7.93 All less than LLD 0

Co-60 See Table 2.2-C 4.69 (2/26) 3.24 - 6.14 208 (0.45 mi S) 4.69 (2/13) 3.24 - 6.14 All less than LLD 0

Tritium 12 2000 4220 (8/8) 404 - 16100 208 (0.45 mi S) 7785 (4/4) 3430 - 16100 215 (4.21 mi NNE) 418 (3/4) 360 - 448 0

Appendix B - Page 3 CATAWBA NUCLEAR STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

Catawba Nuclear Station Docket Numbers 50-413, 414 York County, South Carolina Calendar Year 2014 Medium or Pathway Sampled or Measured (Unit of Measurement)

Type and Total No. of Measurements Performed Lower Limit of Detection (LLD)(1)

All Indicator Locations(2) (3)

Mean Range Location w/Highest Annual Mean Control Locations Mean Range(2) (3)

Name, Distance, and Direction Mean Range(2) (3)

No. of Non-Routine Report Meas.

Ground Water (pCi/l)

Gamma 2(4)

See Table 2.2-C All less than LLD No Control Location 0

Tritium 2(4) 2000 All less than LLD No Control Location 0

Milk (pCi/l)

Gamma 26 See Table 2.2-C No Indicator Location All less than LLD 0

I-131 26 See Table 2.2-C No Indicator Location All less than LLD 0

Broadleaf Vegetation (pCi/kg, wet)

Gamma 60 Cs-137 See Table 2.2-C 37.2 (6/48) 17.2 - 58.6 201 (0.53 mi NE) 37.2 (6/12) 17.2 - 58.6 All less than LLD 0

Food Products (pCi/kg, wet)

Gamma 12 See Table 2.2-C All less than LLD No Control Location 0

Fish (pCi/kg, wet)

Gamma 12 Cs-137 See Table 2.2-C 11.0 (1/6) 11.0 - 11.0 208 (0.45 mi S) 11.0 (1/6) 11.0 - 11.0 All less than LLD 0

Sediments--Shoreline (pCi/kg, dry)

Gamma 6

Mn-54 See Table 2.2-C 68.4 (1/4) 68.4 - 68.4 208 (0.45 mi S) 68.4 (1/2) 68.4 - 68.4 All less than LLD 0

Shoreline Sediment continued on next page Co-58 See Table 2.2-C 887 (1/4) 887 - 887 208 (0.45 mi S) 887 (1/2) 887 - 887 All less than LLD 0

Appendix B - Page 4 CATAWBA NUCLEAR STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DATA

SUMMARY

Catawba Nuclear Station Docket Numbers 50-413, 414 York County, South Carolina Calendar Year 2014 Medium or Pathway Sampled or Measured (Unit of Measurement)

Type and Total No. of Measurements Performed Lower Limit of Detection (LLD)(1)

All Indicator Locations(2) (3)

Mean Range Location w/Highest Annual Mean Control Locations Mean Range(2) (3)

Name, Distance, and Direction Mean Range(2) (3)

No. of Non-Routine Report Meas.

Sediments--Shoreline (pCi/kg, dry)

Gamma 6

Co-60 See Table 2.2-C 790 (1/4) 790 - 790 208 (0.45 mi S) 790 (1/2) 790 - 790 All less than LLD 0

Cs-137 See Table 2.2-C 24.6 (1/4) 24.6 - 24.6 208 (0.45 mi S) 24.6 (1/2) 24.6 - 24.6 All less than LLD 0

TLD (mR per quarter) (5)

TLD Readout 163(4) 17.8 (151/151) 10.8 - 27.9 237 (4.75 mi SSE) 22.5 (4/4) 17.8 - 27.8 217 (10.3 mi SSE) 247 (7.33 mi ESE) 251 (9.72 mi WNW) 14.2 (12/12) 10.6 - 19.2 0

Appendix B - Page 5 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.

TLD exposure is reported in milliroentgen (mR) per standard quarter (91 days). TLD data indicated in section 3.10 (Direct Gamma Radiation) are reported in mrem /yr (n

0.95).

Appendix C - Page 1 APPENDIX C SAMPLING DEVIATIONS UNAVAILABLE ANALYSES

Appendix C - Page 2 APPENDIX C CATAWBA NUCLEAR STATION SAMPLING DEVIATIONS & UNAVAILABLE ANALYSES DEVIATION & UNAVAILABLE REASON CODES BF Blown Fuse PO Power Outage FZ Sample Frozen PS Pump out of service / Undergoing Repair IW Inclement Weather SL Sample Loss/Lost due to Lab Accident LC Line Clog to Sampler SM Motor / Rotor Seized OT Other TF Torn Filter PI Power Interrupt VN Vandalism PM Preventive Maintenance CN Construction C.1 SAMPLING DEVIATIONS Air Particulate and Air Radioiodine Location Scheduled Collection Dates Actual Collection Dates Code Description &

Action to Prevent Recurrence Corrective Action Identity 208 7/29 - 8/5/2014 8/5 - 8/12/2014 7/29 - 8/1/2014 8/6 - 8/12/2014 PO Power interrupted for about 129 hours0.00149 days 0.0358 hours 2.132936e-4 weeks 4.90845e-5 months to sampling equipment due to fallen tree.

CNS maintenance removed fallen tree and restored power to sampling equipment.

G-14-01749 G-14-01807 Drinking Water Location Scheduled Collection Dates Actual Collection Dates Code Description &

Action to Prevent Recurrence Corrective Action Identity 218 9/16 - 10/14/2014 9/16 - 10/14/2014 OT Sample pump tubing failed causing downtime of about 2.32 hours3.703704e-4 days 0.00889 hours 5.291005e-5 weeks 1.2176e-5 months . Tubing replaced, sampler returned to operation.

G-14-02392 C.2 UNAVAILABLE ANALYSES Ground Water Location Scheduled Collection Dates Code Description &

Action to Prevent Recurrence Corrective Action Identity 254 9/16/2014 12/9/2014 OT Location no longer available due to residential owner actions. All existing structures, including well house cleared from property.

G-14-01973

Appendix C - Page 3 TLD Location Scheduled Collection Dates Code Description &

Action to Prevent Recurrence Corrective Action Identity 239 6/9 - 9/18/2014 VN TLD missing at time of collection.

G-15-00230

Appendix D - Page 1 APPENDIX D ANALYTICAL DEVIATIONS No Analytical deviations were incurred for the 2014 Radiological Environmental Monitoring Program

Appendix E - Page 1 APPENDIX E RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM RESULTS 2014 This appendix includes sample analysis report summaries and supportive data generated from each sample medium for 2014.

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 280737 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014 1.60E-02 1.35E-03 3.03E-03 Beta Sample ID: 280920 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014 1.72E-02 1.40E-03 3.11E-03 Beta Sample ID: 281300 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014 1.69E-02 1.34E-03 2.91E-03 Beta Sample ID: 281659 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014 1.58E-02 1.35E-03 3.19E-03 Beta Sample ID: 282227 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014 2.03E-02 1.40E-03 2.82E-03 Beta Sample ID: 283089 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014 1.78E-02 1.51E-03 3.38E-03 Beta Sample ID: 283471 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014 2.22E-02 1.37E-03 2.60E-03 Beta Sample ID: 284658 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014 1.60E-02 1.29E-03 2.78E-03 Beta Sample ID: 285220 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014 2.42E-02 1.52E-03 2.90E-03 Beta Sample ID: 285827 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014 1.86E-02 1.38E-03 2.79E-03 Beta Sample ID: 286342 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014 1.50E-02 1.29E-03 2.88E-03 Beta Sample ID: 287190 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014 1.42E-02 1.26E-03 2.83E-03 Beta Sample ID: 288447 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014 1.49E-02 1.37E-03 3.31E-03 Beta Sample ID: 289023 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 4/1/2014

<3.41E-04 0.00E+00 3.41E-04 Cs-134

<3.62E-04 0.00E+00 3.62E-04 Cs-137 1.34E-01 6.29E-03 5.69E-03 Be-7 7.60E-03 3.28E-03 5.82E-03 K-40 Sample ID: 289181 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014 1.77E-02 1.38E-03 2.95E-03 Beta Sample ID: 289567 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014 1.64E-02 1.30E-03 2.73E-03 Beta Sample ID: 290049 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014 1.92E-02 1.46E-03 3.19E-03 Beta Sample ID: 292130 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014 2.05E-02 1.48E-03 3.16E-03 Beta Sample ID: 292860 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014 1.79E-02 1.44E-03 3.25E-03 Beta Sample ID: 293131 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014 2.87E-02 1.61E-03 2.86E-03 Beta Sample ID: 294773 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014 2.02E-02 1.43E-03 2.94E-03 Beta Sample ID: 295299 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014 2.31E-02 1.42E-03 2.87E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 2 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 295623 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014 1.77E-02 1.61E-03 3.84E-03 Beta Sample ID: 296025 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014 1.43E-02 1.31E-03 3.07E-03 Beta Sample ID: 296290 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014 2.08E-02 1.42E-03 2.76E-03 Beta Sample ID: 296820 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014 2.24E-02 1.46E-03 2.82E-03 Beta Sample ID: 297095 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014 1.65E-02 1.35E-03 3.03E-03 Beta Sample ID: 297287 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 7/1/2014

<6.67E-04 0.00E+00 6.67E-04 Cs-134

<9.80E-04 0.00E+00 9.80E-04 Cs-137 1.47E-01 4.87E-02 1.09E-02 Be-7

<1.44E-02 0.00E+00 1.44E-02 K-40 Sample ID: 297450 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014 1.83E-02 2.81E-03 3.14E-03 Beta Sample ID: 297705 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014 2.19E-02 2.93E-03 3.09E-03 Beta Sample ID: 350510 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014 1.31E-02 2.50E-03 3.06E-03 Beta Sample ID: 350511 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014 1.86E-02 2.78E-03 3.05E-03 Beta Sample ID: 350955 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014 1.67E-02 2.70E-03 3.09E-03 Beta Sample ID: 351202 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014 2.34E-02 3.01E-03 3.13E-03 Beta Sample ID: 351508 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014 2.02E-02 2.96E-03 3.38E-03 Beta Sample ID: 353370 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014 1.98E-02 2.78E-03 2.87E-03 Beta Sample ID: 353940 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014 1.77E-02 2.50E-03 2.69E-03 Beta Sample ID: 354385 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014 8.67E-03 2.69E-03 3.83E-03 Beta Sample ID: 354701 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014 1.36E-02 2.43E-03 2.85E-03 Beta Sample ID: 355030 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014 2.85E-02 3.27E-03 3.27E-03 Beta Sample ID: 355560 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014 1.62E-02 2.56E-03 2.79E-03 Beta Sample ID: 355566 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 9/30/2014

<7.10E-04 0.00E+00 7.10E-04 Cs-134

<7.34E-04 0.00E+00 7.34E-04 Cs-137 1.07E-01 2.86E-02 3.56E-02 Be-7 9.90E-03 7.31E-03 9.22E-03 K-40 Sample ID: 356387 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014 2.70E-02 3.09E-03 2.94E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 3 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 356971 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014 2.23E-02 2.85E-03 2.79E-03 Beta Sample ID: 357977 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014 1.40E-02 2.53E-03 3.00E-03 Beta Sample ID: 358600 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014 1.97E-02 2.86E-03 3.16E-03 Beta Sample ID: 359204 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014 2.43E-02 2.99E-03 2.96E-03 Beta Sample ID: 359959 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014 2.33E-02 2.88E-03 2.76E-03 Beta Sample ID: 360650 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014 1.90E-02 2.89E-03 3.30E-03 Beta Sample ID: 361518 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014 2.36E-02 3.14E-03 3.45E-03 Beta Sample ID: 361903 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014 1.73E-02 2.65E-03 2.92E-03 Beta Sample ID: 362712 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014 1.94E-02 2.84E-03 3.12E-03 Beta Sample ID: 363461 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014 2.24E-02 2.92E-03 2.92E-03 Beta Sample ID: 363913 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014 2.23E-02 2.94E-03 3.00E-03 Beta Sample ID: 364428 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014 1.32E-02 2.39E-03 2.76E-03 Beta Sample ID: 364434 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 12/30/2014

<9.50E-04 0.00E+00 9.50E-04 Cs-134

<1.01E-03 0.00E+00 1.01E-03 Cs-137 1.09E-01 2.23E-02 1.83E-02 Be-7 1.56E-02 7.70E-03 2.49E-03 K-40 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 280712 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014 1.59E-02 1.34E-03 3.01E-03 Beta Sample ID: 280895 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014 1.84E-02 1.42E-03 3.09E-03 Beta Sample ID: 281275 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014 1.35E-02 1.25E-03 2.91E-03 Beta Sample ID: 281634 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014 1.87E-02 1.47E-03 3.38E-03 Beta Sample ID: 282202 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014 1.91E-02 1.38E-03 2.83E-03 Beta Sample ID: 283064 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014 1.70E-02 1.49E-03 3.39E-03 Beta Sample ID: 283446 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014 2.26E-02 1.38E-03 2.60E-03 Beta Sample ID: 284633 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014 1.78E-02 1.35E-03 2.81E-03 Beta Sample ID: 285195 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014 2.47E-02 1.52E-03 2.89E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 4 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 285802 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014 1.79E-02 1.35E-03 2.76E-03 Beta Sample ID: 286317 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014 1.36E-02 1.26E-03 2.88E-03 Beta Sample ID: 287165 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014 1.55E-02 1.30E-03 2.85E-03 Beta Sample ID: 288422 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014 1.28E-02 1.32E-03 3.30E-03 Beta Sample ID: 289024 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 4/1/2014

<2.68E-04 0.00E+00 2.68E-04 Cs-134

<2.84E-04 0.00E+00 2.84E-04 Cs-137 1.29E-01 4.68E-03 4.37E-03 Be-7 2.43E-02 2.17E-03 3.16E-03 K-40 Sample ID: 289156 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014 1.54E-02 1.32E-03 2.96E-03 Beta Sample ID: 289542 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014 1.55E-02 1.28E-03 2.74E-03 Beta Sample ID: 290024 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014 1.89E-02 1.45E-03 3.21E-03 Beta Sample ID: 292105 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014 1.96E-02 1.46E-03 3.16E-03 Beta Sample ID: 292835 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014 1.84E-02 1.45E-03 3.25E-03 Beta Sample ID: 293106 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014 2.57E-02 1.54E-03 2.85E-03 Beta Sample ID: 294748 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014 2.43E-02 1.53E-03 2.94E-03 Beta Sample ID: 295274 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014 2.26E-02 1.41E-03 2.87E-03 Beta Sample ID: 295598 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014 1.88E-02 1.64E-03 3.84E-03 Beta Sample ID: 296000 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014 1.27E-02 1.27E-03 3.08E-03 Beta Sample ID: 296265 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014 1.93E-02 1.38E-03 2.75E-03 Beta Sample ID: 296795 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014 2.01E-02 1.41E-03 2.83E-03 Beta Sample ID: 297070 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014 1.72E-02 1.39E-03 3.10E-03 Beta Sample ID: 297288 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 7/1/2014

<5.84E-04 0.00E+00 5.84E-04 Cs-134

<1.23E-03 0.00E+00 1.23E-03 Cs-137 1.09E-01 3.30E-02 3.49E-02 Be-7 1.67E-02 1.06E-02 4.52E-03 K-40 Sample ID: 297425 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014 1.49E-02 2.64E-03 3.14E-03 Beta Sample ID: 297680 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014 2.08E-02 2.88E-03 3.08E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 5 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 350512 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014 1.62E-02 2.65E-03 3.05E-03 Beta Sample ID: 350513 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014 1.71E-02 2.71E-03 3.04E-03 Beta Sample ID: 350956 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014 1.40E-02 2.57E-03 3.09E-03 Beta Sample ID: 351203 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014 2.66E-02 3.15E-03 3.13E-03 Beta Sample ID: 351509 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014 2.06E-02 2.99E-03 3.39E-03 Beta Sample ID: 353371 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014 2.22E-02 2.88E-03 2.86E-03 Beta Sample ID: 353941 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014 1.90E-02 2.56E-03 2.69E-03 Beta Sample ID: 354386 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014 8.29E-03 2.67E-03 3.83E-03 Beta Sample ID: 354702 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014 1.28E-02 2.43E-03 2.93E-03 Beta Sample ID: 355031 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014 2.76E-02 3.23E-03 3.26E-03 Beta Sample ID: 355561 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014 1.44E-02 2.48E-03 2.79E-03 Beta Sample ID: 355567 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 9/30/2014

<8.12E-04 0.00E+00 8.12E-04 Cs-134

<9.31E-04 0.00E+00 9.31E-04 Cs-137 1.23E-01 2.35E-02 1.50E-02 Be-7

<1.84E-02 0.00E+00 1.84E-02 K-40 Sample ID: 356388 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014 2.86E-02 3.17E-03 2.96E-03 Beta Sample ID: 356972 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014 2.52E-02 2.97E-03 2.77E-03 Beta Sample ID: 357978 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014 1.56E-02 2.61E-03 3.00E-03 Beta Sample ID: 358601 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014 1.98E-02 2.86E-03 3.15E-03 Beta Sample ID: 359205 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014 2.58E-02 3.05E-03 2.96E-03 Beta Sample ID: 359960 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014 2.39E-02 2.92E-03 2.78E-03 Beta Sample ID: 360651 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014 2.21E-02 3.01E-03 3.28E-03 Beta Sample ID: 361519 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014 2.49E-02 3.19E-03 3.45E-03 Beta Sample ID: 361904 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014 1.82E-02 2.70E-03 2.92E-03 Beta Sample ID: 362713 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014 2.30E-02 3.00E-03 3.13E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 6 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 363462 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014 2.58E-02 3.02E-03 2.84E-03 Beta Sample ID: 363914 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014 2.24E-02 2.90E-03 2.93E-03 Beta Sample ID: 364429 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014 1.58E-02 2.53E-03 2.76E-03 Beta Sample ID: 364435 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 12/30/2014

<1.06E-03 0.00E+00 1.06E-03 Cs-134

<7.53E-04 0.00E+00 7.53E-04 Cs-137 1.14E-01 2.19E-02 1.48E-02 Be-7 7.04E-03 7.93E-03 1.25E-02 K-40 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 280733 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014 1.74E-02 1.38E-03 3.00E-03 Beta Sample ID: 280916 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014 1.63E-02 1.37E-03 3.09E-03 Beta Sample ID: 281296 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014 1.61E-02 1.32E-03 2.91E-03 Beta Sample ID: 281655 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014 1.75E-02 1.44E-03 3.38E-03 Beta Sample ID: 282223 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014 1.98E-02 1.39E-03 2.83E-03 Beta Sample ID: 283085 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014 1.66E-02 1.46E-03 3.31E-03 Beta Sample ID: 283467 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014 2.62E-02 1.45E-03 2.60E-03 Beta Sample ID: 284654 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014 1.52E-02 1.28E-03 2.80E-03 Beta Sample ID: 285216 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014 2.54E-02 1.55E-03 2.90E-03 Beta Sample ID: 285823 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014 1.89E-02 1.37E-03 2.77E-03 Beta Sample ID: 286338 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014 1.60E-02 1.32E-03 2.88E-03 Beta Sample ID: 287186 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014 1.48E-02 1.29E-03 2.85E-03 Beta Sample ID: 288443 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014 1.57E-02 1.39E-03 3.30E-03 Beta Sample ID: 289026 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 4/1/2014

<2.74E-04 0.00E+00 2.74E-04 Cs-134

<3.68E-04 0.00E+00 3.68E-04 Cs-137 1.42E-01 5.06E-03 4.33E-03 Be-7 9.94E-03 2.38E-03 3.49E-03 K-40 Sample ID: 289177 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014 1.79E-02 1.38E-03 2.95E-03 Beta Sample ID: 289563 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014 1.85E-02 1.36E-03 2.75E-03 Beta Sample ID: 290045 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014 2.48E-02 1.58E-03 3.20E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 7 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 292126 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014 1.92E-02 1.45E-03 3.16E-03 Beta Sample ID: 292856 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014 1.93E-02 1.47E-03 3.24E-03 Beta Sample ID: 293127 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014 2.84E-02 1.60E-03 2.87E-03 Beta Sample ID: 294769 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014 2.39E-02 1.52E-03 2.94E-03 Beta Sample ID: 295295 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014 2.57E-02 1.48E-03 2.87E-03 Beta Sample ID: 295619 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014 1.88E-02 1.64E-03 3.84E-03 Beta Sample ID: 296021 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014 1.57E-02 1.35E-03 3.08E-03 Beta Sample ID: 296286 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014 1.77E-02 1.34E-03 2.75E-03 Beta Sample ID: 296816 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014 1.99E-02 1.40E-03 2.83E-03 Beta Sample ID: 297091 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014 1.80E-02 1.41E-03 3.10E-03 Beta Sample ID: 297290 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 7/1/2014

<7.60E-04 0.00E+00 7.60E-04 Cs-134

<8.03E-04 0.00E+00 8.03E-04 Cs-137 1.40E-01 6.00E-02 1.60E-02 Be-7

<1.72E-02 0.00E+00 1.72E-02 K-40 Sample ID: 297446 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014 1.82E-02 2.79E-03 3.12E-03 Beta Sample ID: 297701 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014 2.11E-02 2.90E-03 3.09E-03 Beta Sample ID: 350514 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014 1.67E-02 2.68E-03 3.05E-03 Beta Sample ID: 350515 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014 1.55E-02 2.63E-03 3.04E-03 Beta Sample ID: 350957 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/1/2014 1.67E-02 5.60E-03 8.02E-03 Beta Sample ID: 351204 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/6/2014 - 8/12/2014 2.29E-02 3.34E-03 3.67E-03 Beta Sample ID: 351510 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014 2.09E-02 2.99E-03 3.39E-03 Beta Sample ID: 353372 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014 1.99E-02 2.78E-03 2.86E-03 Beta Sample ID: 353942 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014 1.81E-02 2.47E-03 2.62E-03 Beta Sample ID: 354387 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014 1.05E-02 2.73E-03 3.74E-03 Beta Sample ID: 354703 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014 1.28E-02 2.44E-03 2.93E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 8 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 355033 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014 2.84E-02 3.26E-03 3.26E-03 Beta Sample ID: 355562 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014 1.53E-02 2.52E-03 2.79E-03 Beta Sample ID: 355568 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 9/30/2014

<6.50E-04 0.00E+00 6.49E-04 Cs-134

<7.24E-04 0.00E+00 7.24E-04 Cs-137 1.30E-01 2.48E-02 1.69E-02 Be-7 1.53E-02 7.79E-03 2.60E-03 K-40 Sample ID: 356389 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014 2.88E-02 3.17E-03 2.96E-03 Beta Sample ID: 356973 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014 2.45E-02 2.94E-03 2.77E-03 Beta Sample ID: 357979 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014 1.64E-02 2.65E-03 3.00E-03 Beta Sample ID: 358602 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014 2.12E-02 2.92E-03 3.15E-03 Beta Sample ID: 359206 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014 2.55E-02 3.04E-03 2.96E-03 Beta Sample ID: 359961 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014 2.49E-02 2.96E-03 2.78E-03 Beta Sample ID: 360652 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014 2.27E-02 2.99E-03 3.20E-03 Beta Sample ID: 361520 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014 2.34E-02 3.12E-03 3.45E-03 Beta Sample ID: 361905 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014 1.91E-02 2.74E-03 2.92E-03 Beta Sample ID: 362714 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014 2.11E-02 2.92E-03 3.13E-03 Beta Sample ID: 363463 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014 2.45E-02 2.96E-03 2.84E-03 Beta Sample ID: 363915 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014 2.52E-02 3.02E-03 2.93E-03 Beta Sample ID: 364430 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014 1.78E-02 2.63E-03 2.76E-03 Beta Sample ID: 364436 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 12/30/2014

<7.87E-04 0.00E+00 7.87E-04 Cs-134

<1.01E-03 0.00E+00 1.01E-03 Cs-137 9.32E-02 1.97E-02 1.54E-02 Be-7 7.15E-03 7.44E-03 1.13E-02 K-40 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 280705 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014 1.89E-02 1.42E-03 3.01E-03 Beta Sample ID: 280888 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014 1.49E-02 1.35E-03 3.14E-03 Beta Sample ID: 281268 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014 1.59E-02 1.31E-03 2.91E-03 Beta Sample ID: 281627 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014 1.69E-02 1.42E-03 3.35E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 9 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 282195 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014 1.88E-02 1.36E-03 2.81E-03 Beta Sample ID: 283057 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014 1.73E-02 1.53E-03 3.48E-03 Beta Sample ID: 283439 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014 2.61E-02 1.45E-03 2.60E-03 Beta Sample ID: 284627 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014 1.66E-02 1.30E-03 2.77E-03 Beta Sample ID: 285189 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014 2.49E-02 1.53E-03 2.89E-03 Beta Sample ID: 285796 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014 1.65E-02 1.33E-03 2.83E-03 Beta Sample ID: 286311 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014 1.70E-02 1.34E-03 2.88E-03 Beta Sample ID: 287159 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014 1.42E-02 1.26E-03 2.83E-03 Beta Sample ID: 288416 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014 1.47E-02 1.37E-03 3.30E-03 Beta Sample ID: 289027 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 4/1/2014

<3.10E-04 0.00E+00 3.10E-04 Cs-134

<3.14E-04 0.00E+00 3.14E-04 Cs-137 1.40E-01 6.65E-03 5.81E-03 Be-7 1.99E-02 2.74E-03 2.78E-03 K-40 Sample ID: 289150 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014 1.44E-02 1.30E-03 2.98E-03 Beta Sample ID: 289536 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014 1.92E-02 1.37E-03 2.74E-03 Beta Sample ID: 290018 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014 2.13E-02 1.51E-03 3.20E-03 Beta Sample ID: 292099 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014 1.88E-02 1.44E-03 3.16E-03 Beta Sample ID: 292829 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014 1.67E-02 1.42E-03 3.26E-03 Beta Sample ID: 293100 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014 2.73E-02 1.55E-03 2.79E-03 Beta Sample ID: 294742 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014 2.30E-02 1.50E-03 2.94E-03 Beta Sample ID: 295268 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014 2.34E-02 1.43E-03 2.85E-03 Beta Sample ID: 295592 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014 1.40E-02 1.52E-03 3.86E-03 Beta Sample ID: 295994 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014 1.45E-02 1.32E-03 3.08E-03 Beta Sample ID: 296259 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014 1.98E-02 1.40E-03 2.76E-03 Beta Sample ID: 296789 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014 1.97E-02 1.39E-03 2.81E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 10 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 297064 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014 1.87E-02 1.45E-03 3.20E-03 Beta Sample ID: 297291 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 7/1/2014

<6.77E-04 0.00E+00 6.77E-04 Cs-134

<7.18E-04 0.00E+00 7.18E-04 Cs-137 1.43E-01 2.89E-02 1.69E-02 Be-7 8.61E-03 6.55E-03 3.33E-03 K-40 Sample ID: 297419 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014 1.82E-02 2.84E-03 3.21E-03 Beta Sample ID: 297674 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014 2.03E-02 2.92E-03 3.17E-03 Beta Sample ID: 350516 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014 1.78E-02 2.71E-03 3.02E-03 Beta Sample ID: 350517 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014 1.91E-02 2.82E-03 3.07E-03 Beta Sample ID: 350958 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014 1.65E-02 2.68E-03 3.09E-03 Beta Sample ID: 351205 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014 2.51E-02 3.09E-03 3.14E-03 Beta Sample ID: 351511 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014 1.82E-02 2.87E-03 3.37E-03 Beta Sample ID: 353373 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014 2.12E-02 2.85E-03 2.88E-03 Beta Sample ID: 353943 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014 1.85E-02 2.52E-03 2.68E-03 Beta Sample ID: 354388 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014 9.11E-03 2.72E-03 3.84E-03 Beta Sample ID: 354704 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014 1.51E-02 2.53E-03 2.89E-03 Beta Sample ID: 355035 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014 2.83E-02 3.30E-03 3.31E-03 Beta Sample ID: 355563 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014 1.61E-02 2.56E-03 2.79E-03 Beta Sample ID: 355569 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 9/30/2014

<8.15E-04 0.00E+00 8.15E-04 Cs-134

<8.06E-04 0.00E+00 8.06E-04 Cs-137 1.25E-01 2.46E-02 1.85E-02 Be-7 1.16E-02 9.82E-03 1.45E-02 K-40 Sample ID: 356390 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014 2.95E-02 3.17E-03 2.92E-03 Beta Sample ID: 356974 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014 2.26E-02 2.87E-03 2.80E-03 Beta Sample ID: 357980 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014 1.41E-02 2.50E-03 2.95E-03 Beta Sample ID: 358603 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014 2.13E-02 2.93E-03 3.16E-03 Beta Sample ID: 359207 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014 2.78E-02 3.13E-03 2.95E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 11 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 359962 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014 2.19E-02 2.81E-03 2.75E-03 Beta Sample ID: 360653 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014 2.24E-02 3.04E-03 3.32E-03 Beta Sample ID: 361521 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014 2.06E-02 3.01E-03 3.45E-03 Beta Sample ID: 361906 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014 2.01E-02 2.77E-03 2.90E-03 Beta Sample ID: 362715 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014 1.54E-02 2.65E-03 3.13E-03 Beta Sample ID: 363464 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014 2.67E-02 3.17E-03 3.00E-03 Beta Sample ID: 363916 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014 2.37E-02 2.95E-03 2.93E-03 Beta Sample ID: 364431 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014 1.60E-02 2.54E-03 2.76E-03 Beta Sample ID: 364437 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 12/30/2014

<9.49E-04 0.00E+00 9.49E-04 Cs-134

<6.43E-04 0.00E+00 6.43E-04 Cs-137 1.33E-01 2.36E-02 1.35E-02 Be-7 1.83E-02 8.37E-03 2.48E-03 K-40 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 280706 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014 1.32E-02 1.27E-03 3.02E-03 Beta Sample ID: 280889 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014 1.55E-02 1.34E-03 3.08E-03 Beta Sample ID: 281269 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014 1.50E-02 1.29E-03 2.91E-03 Beta Sample ID: 281628 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014 1.74E-02 1.44E-03 3.38E-03 Beta Sample ID: 282196 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014 1.90E-02 1.38E-03 2.84E-03 Beta Sample ID: 283058 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014 1.59E-02 1.47E-03 3.40E-03 Beta Sample ID: 283440 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014 2.25E-02 1.38E-03 2.59E-03 Beta Sample ID: 284628 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014 1.75E-02 1.34E-03 2.81E-03 Beta Sample ID: 285190 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014 2.43E-02 1.53E-03 2.90E-03 Beta Sample ID: 285797 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014 1.71E-02 1.32E-03 2.75E-03 Beta Sample ID: 286312 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014 1.40E-02 1.26E-03 2.88E-03 Beta Sample ID: 287160 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014 1.39E-02 1.27E-03 2.85E-03 Beta Sample ID: 288417 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014 1.37E-02 1.35E-03 3.31E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 12 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 289028 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 4/1/2014

<2.75E-04 0.00E+00 2.75E-04 Cs-134

<3.61E-04 0.00E+00 3.61E-04 Cs-137 1.33E-01 5.63E-03 4.00E-03 Be-7 5.81E-03 1.89E-03 3.66E-03 K-40 Sample ID: 289151 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014 1.56E-02 1.32E-03 2.94E-03 Beta Sample ID: 289537 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014 1.77E-02 1.32E-03 2.69E-03 Beta Sample ID: 290019 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014 1.76E-02 1.41E-03 3.18E-03 Beta Sample ID: 292100 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014 1.85E-02 1.43E-03 3.16E-03 Beta Sample ID: 292830 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014 1.67E-02 1.41E-03 3.25E-03 Beta Sample ID: 293101 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014 2.73E-02 1.58E-03 2.86E-03 Beta Sample ID: 294743 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014 2.07E-02 1.42E-03 2.85E-03 Beta Sample ID: 295269 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014 2.15E-02 1.39E-03 2.87E-03 Beta Sample ID: 295593 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014 1.98E-02 1.63E-03 3.75E-03 Beta Sample ID: 295995 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014 1.46E-02 1.30E-03 3.00E-03 Beta Sample ID: 296260 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014 1.79E-02 1.34E-03 2.75E-03 Beta Sample ID: 296790 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014 1.82E-02 1.39E-03 2.91E-03 Beta Sample ID: 297065 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014 1.56E-02 1.36E-03 3.11E-03 Beta Sample ID: 297292 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 7/1/2014

<5.82E-04 0.00E+00 5.82E-04 Cs-134

<6.80E-04 0.00E+00 6.80E-04 Cs-137 1.58E-01 2.89E-02 1.76E-02 Be-7 1.20E-02 8.99E-03 1.24E-02 K-40 Sample ID: 297420 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014 1.65E-02 2.71E-03 3.11E-03 Beta Sample ID: 297675 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014 1.97E-02 2.83E-03 3.08E-03 Beta Sample ID: 350518 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014 1.67E-02 2.68E-03 3.05E-03 Beta Sample ID: 350519 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014 1.50E-02 2.60E-03 3.04E-03 Beta Sample ID: 350959 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014 1.35E-02 2.55E-03 3.10E-03 Beta Sample ID: 351206 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014 2.27E-02 2.97E-03 3.12E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 13 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 351512 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014 1.82E-02 2.88E-03 3.39E-03 Beta Sample ID: 353374 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014 2.16E-02 2.85E-03 2.86E-03 Beta Sample ID: 353944 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014 1.77E-02 2.50E-03 2.70E-03 Beta Sample ID: 354389 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014 6.09E-03 2.53E-03 3.81E-03 Beta Sample ID: 354705 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014 1.33E-02 2.47E-03 2.94E-03 Beta Sample ID: 355038 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014 2.46E-02 3.10E-03 3.25E-03 Beta Sample ID: 355564 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014 1.36E-02 2.43E-03 2.79E-03 Beta Sample ID: 355570 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 9/30/2014

<8.86E-04 0.00E+00 8.86E-04 Cs-134

<7.01E-04 0.00E+00 7.01E-04 Cs-137 8.71E-02 2.05E-02 1.83E-02 Be-7 1.81E-02 1.08E-02 1.38E-02 K-40 Sample ID: 356391 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014 2.61E-02 3.06E-03 2.96E-03 Beta Sample ID: 356975 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014 2.43E-02 2.93E-03 2.77E-03 Beta Sample ID: 357981 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014 1.31E-02 2.50E-03 3.01E-03 Beta Sample ID: 358604 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014 2.08E-02 2.85E-03 3.06E-03 Beta Sample ID: 359208 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014 2.23E-02 2.96E-03 3.05E-03 Beta Sample ID: 359963 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014 2.31E-02 2.88E-03 2.78E-03 Beta Sample ID: 360654 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014 1.87E-02 2.80E-03 3.18E-03 Beta Sample ID: 361522 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014 2.26E-02 3.09E-03 3.45E-03 Beta Sample ID: 361907 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014 1.86E-02 2.73E-03 2.93E-03 Beta Sample ID: 362716 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014 1.66E-02 2.70E-03 3.12E-03 Beta Sample ID: 363465 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014 2.38E-02 2.93E-03 2.83E-03 Beta Sample ID: 363917 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014 2.05E-02 2.81E-03 2.93E-03 Beta Sample ID: 364432 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014 1.25E-02 2.35E-03 2.76E-03 Beta Sample ID: 364438 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 12/30/2014

<9.84E-04 0.00E+00 9.84E-04 Cs-134

<5.60E-04 0.00E+00 5.60E-04 Cs-137 1.11E-01 2.17E-02 1.62E-02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 14 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 364438 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 12/30/2014 9.94E-03 7.86E-03 1.07E-02 K-40 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 280734 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014 1.86E-02 1.41E-03 3.03E-03 Beta Sample ID: 280917 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014 1.64E-02 1.38E-03 3.12E-03 Beta Sample ID: 281297 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014 1.63E-02 1.32E-03 2.91E-03 Beta Sample ID: 281656 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014 1.84E-02 1.45E-03 3.34E-03 Beta Sample ID: 282224 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014 1.96E-02 1.38E-03 2.82E-03 Beta Sample ID: 283086 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014 1.73E-02 1.53E-03 3.48E-03 Beta Sample ID: 283468 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014 2.46E-02 1.42E-03 2.59E-03 Beta Sample ID: 284655 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014 1.69E-02 1.32E-03 2.79E-03 Beta Sample ID: 285217 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014 2.59E-02 1.55E-03 2.90E-03 Beta Sample ID: 285824 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014 1.92E-02 1.39E-03 2.79E-03 Beta Sample ID: 286339 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014 1.47E-02 1.28E-03 2.85E-03 Beta Sample ID: 287187 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014 1.60E-02 1.32E-03 2.86E-03 Beta Sample ID: 288444 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014 1.52E-02 1.38E-03 3.31E-03 Beta Sample ID: 289029 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 4/1/2014

<2.96E-04 0.00E+00 2.96E-04 Cs-134

<3.30E-04 0.00E+00 3.30E-04 Cs-137 1.29E-01 6.29E-03 5.22E-03 Be-7 8.70E-03 1.71E-03 3.27E-03 K-40 Sample ID: 289178 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014 1.45E-02 1.30E-03 2.95E-03 Beta Sample ID: 289564 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014 1.91E-02 1.37E-03 2.74E-03 Beta Sample ID: 290046 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014 1.98E-02 1.47E-03 3.19E-03 Beta Sample ID: 292127 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014 1.99E-02 1.47E-03 3.16E-03 Beta Sample ID: 292857 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014 1.64E-02 1.40E-03 3.25E-03 Beta Sample ID: 293128 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014 2.30E-02 1.48E-03 2.85E-03 Beta Sample ID: 294770 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014 1.94E-02 1.42E-03 2.93E-03 Beta (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 15 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 295296 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014 2.18E-02 1.39E-03 2.86E-03 Beta Sample ID: 295620 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014 1.88E-02 1.64E-03 3.84E-03 Beta Sample ID: 296022 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014 1.49E-02 1.33E-03 3.07E-03 Beta Sample ID: 296287 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014 1.88E-02 1.37E-03 2.76E-03 Beta Sample ID: 296817 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014 2.18E-02 1.45E-03 2.83E-03 Beta Sample ID: 297092 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014 1.75E-02 1.40E-03 3.10E-03 Beta Sample ID: 297293 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 7/1/2014

<4.56E-04 0.00E+00 4.56E-04 Cs-134

<4.89E-04 0.00E+00 4.89E-04 Cs-137 1.64E-01 2.69E-02 1.08E-02 Be-7 9.04E-03 5.78E-03 6.26E-03 K-40 Sample ID: 297447 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014 1.91E-02 2.84E-03 3.13E-03 Beta Sample ID: 297702 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014 1.72E-02 2.71E-03 3.08E-03 Beta Sample ID: 350520 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014 2.01E-02 2.83E-03 3.05E-03 Beta Sample ID: 350521 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014 1.90E-02 2.80E-03 3.05E-03 Beta Sample ID: 350960 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014 1.74E-02 2.73E-03 3.09E-03 Beta Sample ID: 351207 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014 2.65E-02 3.15E-03 3.14E-03 Beta Sample ID: 351513 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014 1.77E-02 2.85E-03 3.38E-03 Beta Sample ID: 353375 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014 2.14E-02 2.85E-03 2.87E-03 Beta Sample ID: 353945 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014 2.05E-02 2.62E-03 2.69E-03 Beta Sample ID: 354390 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014 1.10E-02 2.82E-03 3.83E-03 Beta Sample ID: 354706 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014 1.59E-02 2.59E-03 2.92E-03 Beta Sample ID: 355041 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014 2.81E-02 3.26E-03 3.27E-03 Beta Sample ID: 355565 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014 1.54E-02 2.53E-03 2.79E-03 Beta Sample ID: 355571 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 9/30/2014

<9.32E-04 0.00E+00 9.32E-04 Cs-134

<6.84E-04 0.00E+00 6.84E-04 Cs-137 1.11E-01 2.44E-02 2.38E-02 Be-7 7.97E-03 7.98E-03 1.21E-02 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 16 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR PARTICULATE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 356392 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014 2.80E-02 3.14E-03 2.96E-03 Beta Sample ID: 356976 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014 2.37E-02 2.91E-03 2.77E-03 Beta Sample ID: 357982 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014 1.54E-02 2.60E-03 3.00E-03 Beta Sample ID: 358605 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014 1.98E-02 2.87E-03 3.16E-03 Beta Sample ID: 359209 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014 2.58E-02 3.05E-03 2.96E-03 Beta Sample ID: 359964 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014 2.35E-02 2.89E-03 2.77E-03 Beta Sample ID: 360655 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014 2.53E-02 3.15E-03 3.30E-03 Beta Sample ID: 361523 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014 2.39E-02 3.15E-03 3.45E-03 Beta Sample ID: 361908 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014 1.95E-02 2.76E-03 2.92E-03 Beta Sample ID: 362717 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014 2.06E-02 2.89E-03 3.12E-03 Beta Sample ID: 363466 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014 2.67E-02 3.06E-03 2.85E-03 Beta Sample ID: 363918 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014 2.52E-02 3.02E-03 2.93E-03 Beta Sample ID: 364433 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014 1.52E-02 2.49E-03 2.76E-03 Beta Sample ID: 364439 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 12/30/2014

<7.23E-04 0.00E+00 7.23E-04 Cs-134

<4.96E-04 0.00E+00 4.96E-04 Cs-137 1.24E-01 2.24E-02 1.23E-02 Be-7 1.53E-02 8.27E-03 7.79E-03 K-40 Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 280707 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014

<2.15E-02 0.00E+00 2.15E-02 I-131

<1.44E-02 0.00E+00 1.44E-02 Cs-134

<1.71E-02 0.00E+00 1.71E-02 Cs-137

<1.78E-01 0.00E+00 1.78E-01 Be-7

<6.30E-01 0.00E+00 6.30E-01 K-40 Sample ID: 280890 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014

<1.97E-02 0.00E+00 1.97E-02 I-131

<1.62E-02 0.00E+00 1.62E-02 Cs-134

<1.94E-02 0.00E+00 1.94E-02 Cs-137

<1.68E-01 0.00E+00 1.68E-01 Be-7 6.08E-01 1.33E-01 7.82E-02 K-40 Sample ID: 281270 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014

<2.43E-02 0.00E+00 2.43E-02 I-131

<2.18E-02 0.00E+00 2.18E-02 Cs-134

<1.55E-02 0.00E+00 1.55E-02 Cs-137

<1.35E-01 0.00E+00 1.35E-01 Be-7 5.69E-01 1.27E-01 2.15E-01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 17 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 281629 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014

<1.20E-02 0.00E+00 1.20E-02 I-131

<1.19E-02 0.00E+00 1.19E-02 Cs-134

<1.13E-02 0.00E+00 1.13E-02 Cs-137

<1.33E-01 0.00E+00 1.33E-01 Be-7 3.61E-01 9.01E-02 6.09E-02 K-40 Sample ID: 282197 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014

<2.48E-02 0.00E+00 2.48E-02 I-131

<1.75E-02 0.00E+00 1.75E-02 Cs-134

<2.06E-02 0.00E+00 2.06E-02 Cs-137

<1.41E-01 0.00E+00 1.41E-01 Be-7 4.23E-01 1.33E-01 3.80E-01 K-40 Sample ID: 283059 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014

<1.82E-02 0.00E+00 1.82E-02 I-131

<1.10E-02 0.00E+00 1.10E-02 Cs-134

<3.57E-03 0.00E+00 3.57E-03 Cs-137

<8.60E-02 0.00E+00 8.60E-02 Be-7 3.90E-01 1.30E-01 1.81E-01 K-40 Sample ID: 283441 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014

<1.09E-02 0.00E+00 1.09E-02 I-131

<1.15E-02 0.00E+00 1.15E-02 Cs-134

<1.17E-02 0.00E+00 1.17E-02 Cs-137

<7.58E-02 0.00E+00 7.58E-02 Be-7 2.83E-01 9.08E-02 1.77E-01 K-40 Sample ID: 284629 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014

<1.23E-02 0.00E+00 1.23E-02 I-131

<1.23E-02 0.00E+00 1.23E-02 Cs-134

<1.61E-02 0.00E+00 1.61E-02 Cs-137

<1.26E-01 0.00E+00 1.26E-01 Be-7 2.52E-01 1.16E-01 2.24E-01 K-40 Sample ID: 285191 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014

<2.32E-02 0.00E+00 2.32E-02 I-131

<1.33E-02 0.00E+00 1.33E-02 Cs-134

<1.87E-02 0.00E+00 1.87E-02 Cs-137

<1.13E-01 0.00E+00 1.13E-01 Be-7 5.36E-01 1.46E-01 7.74E-02 K-40 Sample ID: 285798 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014

<1.70E-02 0.00E+00 1.70E-02 I-131

<1.71E-02 0.00E+00 1.71E-02 Cs-134

<2.01E-02 0.00E+00 2.01E-02 Cs-137

<1.64E-01 0.00E+00 1.64E-01 Be-7 6.66E-01 1.39E-01 2.09E-01 K-40 Sample ID: 286313 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014

<2.10E-02 0.00E+00 2.10E-02 I-131

<2.20E-02 0.00E+00 2.20E-02 Cs-134

<1.53E-02 0.00E+00 1.53E-02 Cs-137

<1.59E-01 0.00E+00 1.59E-01 Be-7

<6.37E-01 0.00E+00 6.37E-01 K-40 Sample ID: 287161 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014

<2.19E-02 0.00E+00 2.19E-02 I-131

<2.10E-02 0.00E+00 2.10E-02 Cs-134

<2.09E-02 0.00E+00 2.09E-02 Cs-137

<1.42E-01 0.00E+00 1.42E-01 Be-7 3.20E-01 1.28E-01 3.34E-01 K-40 Sample ID: 288418 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014

<9.56E-03 0.00E+00 9.56E-03 I-131

<9.69E-03 0.00E+00 9.69E-03 Cs-134

<8.28E-03 0.00E+00 8.28E-03 Cs-137

<6.07E-02 0.00E+00 6.07E-02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 18 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 288418 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014 5.32E-01 8.96E-02 1.07E-01 K-40 Sample ID: 289152 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014

<2.53E-02 0.00E+00 2.53E-02 I-131

<1.89E-02 0.00E+00 1.89E-02 Cs-134

<1.80E-02 0.00E+00 1.80E-02 Cs-137

<1.25E-01 0.00E+00 1.25E-01 Be-7

<5.40E-01 0.00E+00 5.40E-01 K-40 Sample ID: 289538 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014

<1.50E-02 0.00E+00 1.50E-02 I-131

<1.72E-02 0.00E+00 1.72E-02 Cs-134

<2.16E-02 0.00E+00 2.16E-02 Cs-137

<1.70E-01 0.00E+00 1.70E-01 Be-7

<5.60E-01 0.00E+00 5.60E-01 K-40 Sample ID: 290020 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014

<1.74E-02 0.00E+00 1.74E-02 I-131

<1.25E-02 0.00E+00 1.25E-02 Cs-134

<9.36E-03 0.00E+00 9.36E-03 Cs-137

<7.14E-02 0.00E+00 7.14E-02 Be-7 3.52E-01 9.09E-02 6.34E-02 K-40 Sample ID: 292101 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014

<2.59E-02 0.00E+00 2.59E-02 I-131

<1.73E-02 0.00E+00 1.73E-02 Cs-134

<2.78E-02 0.00E+00 2.78E-02 Cs-137

<1.73E-01 0.00E+00 1.73E-01 Be-7

<6.68E-01 0.00E+00 6.68E-01 K-40 Sample ID: 292831 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014

<1.19E-02 0.00E+00 1.19E-02 I-131

<1.04E-02 0.00E+00 1.04E-02 Cs-134

<1.19E-02 0.00E+00 1.19E-02 Cs-137

<6.59E-02 0.00E+00 6.59E-02 Be-7

<3.68E-01 0.00E+00 3.68E-01 K-40 Sample ID: 293102 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014

<1.31E-02 0.00E+00 1.31E-02 I-131

<8.07E-03 0.00E+00 8.07E-03 Cs-134

<1.04E-02 0.00E+00 1.04E-02 Cs-137

<9.27E-02 0.00E+00 9.27E-02 Be-7 5.95E-01 8.42E-02 1.07E-01 K-40 Sample ID: 294744 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014

<9.07E-03 0.00E+00 9.07E-03 I-131

<9.68E-03 0.00E+00 9.68E-03 Cs-134

<1.67E-02 0.00E+00 1.67E-02 Cs-137

<8.16E-02 0.00E+00 8.16E-02 Be-7 2.93E-01 7.57E-02 1.46E-01 K-40 Sample ID: 295270 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014

<2.74E-02 0.00E+00 2.74E-02 I-131

<1.03E-02 0.00E+00 1.03E-02 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<1.01E-01 0.00E+00 1.01E-01 Be-7 4.59E-01 9.79E-02 1.91E-01 K-40 Sample ID: 295594 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014

<2.57E-02 0.00E+00 2.57E-02 I-131

<2.02E-02 0.00E+00 2.02E-02 Cs-134

<2.74E-02 0.00E+00 2.74E-02 Cs-137

<1.06E-01 0.00E+00 1.06E-01 Be-7 3.22E-01 1.60E-01 4.93E-01 K-40 Sample ID: 295996 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014

<1.72E-02 0.00E+00 1.72E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 19 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 295996 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014

<1.49E-02 0.00E+00 1.49E-02 Cs-134

<1.68E-02 0.00E+00 1.68E-02 Cs-137

<1.17E-01 0.00E+00 1.17E-01 Be-7 3.05E-01 8.46E-02 1.67E-01 K-40 Sample ID: 296261 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014

<1.02E-02 0.00E+00 1.02E-02 I-131

<1.26E-02 0.00E+00 1.26E-02 Cs-134

<1.15E-02 0.00E+00 1.15E-02 Cs-137

<1.05E-01 0.00E+00 1.05E-01 Be-7 2.83E-01 9.45E-02 1.64E-01 K-40 Sample ID: 296791 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014

<1.56E-02 0.00E+00 1.56E-02 I-131

<1.34E-02 0.00E+00 1.34E-02 Cs-134

<1.22E-02 0.00E+00 1.22E-02 Cs-137

<8.84E-02 0.00E+00 8.84E-02 Be-7 2.78E-01 9.90E-02 2.17E-01 K-40 Sample ID: 297066 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014

<2.04E-02 0.00E+00 2.04E-02 I-131

<2.15E-02 0.00E+00 2.15E-02 Cs-134

<1.61E-02 0.00E+00 1.61E-02 Cs-137

<1.31E-01 0.00E+00 1.31E-01 Be-7 4.17E-01 1.08E-01 7.52E-02 K-40 Sample ID: 297421 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014

<1.82E-02 0.00E+00 1.82E-02 I-131

<1.38E-02 0.00E+00 1.38E-02 Cs-134

<1.23E-02 0.00E+00 1.23E-02 Cs-137

<1.01E-01 0.00E+00 1.01E-01 Be-7 4.27E-01 1.01E-01 6.41E-02 K-40 Sample ID: 297676 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014

<3.03E-02 0.00E+00 3.03E-02 I-131

<1.33E-02 0.00E+00 1.33E-02 Cs-134

<1.65E-02 0.00E+00 1.65E-02 Cs-137

<1.41E-01 0.00E+00 1.41E-01 Be-7 3.87E-01 1.96E-01 6.55E-02 K-40 Sample ID: 350522 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014

<2.85E-02 0.00E+00 2.85E-02 I-131

<1.03E-02 0.00E+00 1.03E-02 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<1.09E-01 0.00E+00 1.09E-01 Be-7 3.53E-01 2.62E-01 3.46E-01 K-40 Sample ID: 350523 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014

<1.19E-02 0.00E+00 1.19E-02 I-131

<3.87E-03 0.00E+00 3.87E-03 Cs-134

<1.92E-02 0.00E+00 1.92E-02 Cs-137

<1.05E-01 0.00E+00 1.05E-01 Be-7 4.91E-01 3.14E-01 4.02E-01 K-40 Sample ID: 350961 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014

<2.16E-02 0.00E+00 2.16E-02 I-131

<1.52E-02 0.00E+00 1.52E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.64E-01 0.00E+00 1.64E-01 Be-7

<5.79E-01 0.00E+00 5.79E-01 K-40 Sample ID: 351208 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014

<2.18E-02 0.00E+00 2.18E-02 I-131

<1.85E-02 0.00E+00 1.85E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.66E-01 0.00E+00 1.66E-01 Be-7

<7.30E-01 0.00E+00 7.30E-01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 20 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 351514 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014

<1.58E-02 0.00E+00 1.58E-02 I-131

<5.66E-03 0.00E+00 5.66E-03 Cs-134

<2.10E-02 0.00E+00 2.10E-02 Cs-137

<1.54E-01 0.00E+00 1.54E-01 Be-7 4.55E-01 2.64E-01 2.77E-01 K-40 Sample ID: 353376 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014

<1.95E-02 0.00E+00 1.95E-02 I-131

<2.78E-02 0.00E+00 2.78E-02 Cs-134

<2.33E-02 0.00E+00 2.33E-02 Cs-137

<1.33E-01 0.00E+00 1.33E-01 Be-7 3.29E-01 2.19E-01 2.24E-01 K-40 Sample ID: 353946 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014

<1.92E-02 0.00E+00 1.92E-02 I-131

<1.71E-02 0.00E+00 1.71E-02 Cs-134

<1.43E-02 0.00E+00 1.43E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7 6.22E-01 2.60E-01 7.03E-02 K-40 Sample ID: 354391 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014

<2.33E-02 0.00E+00 2.33E-02 I-131

<2.28E-02 0.00E+00 2.28E-02 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.53E-01 0.00E+00 1.53E-01 Be-7 5.85E-01 3.10E-01 2.77E-01 K-40 Sample ID: 354707 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014

<1.34E-02 0.00E+00 1.34E-02 I-131

<2.20E-02 0.00E+00 2.20E-02 Cs-134

<2.05E-02 0.00E+00 2.05E-02 Cs-137

<9.90E-02 0.00E+00 9.90E-02 Be-7

<6.47E-01 0.00E+00 6.47E-01 K-40 Sample ID: 355044 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014

<2.12E-02 0.00E+00 2.12E-02 I-131

<3.84E-03 0.00E+00 3.84E-03 Cs-134

<1.65E-02 0.00E+00 1.65E-02 Cs-137

<1.45E-01 0.00E+00 1.45E-01 Be-7 3.72E-01 2.81E-01 3.82E-01 K-40 Sample ID: 355572 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014

<2.10E-02 0.00E+00 2.10E-02 I-131

<1.86E-02 0.00E+00 1.86E-02 Cs-134

<1.64E-02 0.00E+00 1.64E-02 Cs-137

<1.44E-01 0.00E+00 1.44E-01 Be-7 5.37E-01 2.57E-01 8.09E-02 K-40 Sample ID: 356393 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014

<2.16E-02 0.00E+00 2.16E-02 I-131

<1.50E-02 0.00E+00 1.50E-02 Cs-134

<1.62E-02 0.00E+00 1.62E-02 Cs-137

<1.33E-01 0.00E+00 1.33E-01 Be-7 5.29E-01 2.53E-01 7.96E-02 K-40 Sample ID: 356977 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014

<2.41E-02 0.00E+00 2.41E-02 I-131

<3.83E-03 0.00E+00 3.83E-03 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7

<6.54E-01 0.00E+00 6.54E-01 K-40 Sample ID: 357983 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014

<2.08E-02 0.00E+00 2.08E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<2.31E-02 0.00E+00 2.31E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 21 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 357983 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014 1.98E-01 2.35E-01 3.73E-01 K-40 Sample ID: 358606 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014

<1.95E-02 0.00E+00 1.95E-02 I-131

<1.85E-02 0.00E+00 1.85E-02 Cs-134

<2.12E-02 0.00E+00 2.12E-02 Cs-137

<1.55E-01 0.00E+00 1.55E-01 Be-7 2.43E-01 2.57E-01 3.95E-01 K-40 Sample ID: 359210 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014

<1.39E-02 0.00E+00 1.39E-02 I-131

<8.05E-03 0.00E+00 8.05E-03 Cs-134

<1.48E-02 0.00E+00 1.48E-02 Cs-137

<1.10E-01 0.00E+00 1.10E-01 Be-7

<4.21E-01 0.00E+00 4.21E-01 K-40 Sample ID: 359965 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014

<1.37E-02 0.00E+00 1.37E-02 I-131

<8.96E-03 0.00E+00 8.96E-03 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<9.13E-02 0.00E+00 9.13E-02 Be-7 4.28E-01 1.76E-01 1.61E-01 K-40 Sample ID: 360656 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014

<2.38E-02 0.00E+00 2.38E-02 I-131

<1.05E-02 0.00E+00 1.05E-02 Cs-134

<2.33E-02 0.00E+00 2.33E-02 Cs-137

<1.20E-01 0.00E+00 1.20E-01 Be-7

<6.23E-01 0.00E+00 6.23E-01 K-40 Sample ID: 361524 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014

<1.84E-02 0.00E+00 1.84E-02 I-131

<1.04E-02 0.00E+00 1.04E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7

<6.00E-01 0.00E+00 6.00E-01 K-40 Sample ID: 361909 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014

<2.83E-02 0.00E+00 2.83E-02 I-131

<1.96E-02 0.00E+00 1.96E-02 Cs-134

<1.43E-02 0.00E+00 1.43E-02 Cs-137

<1.35E-01 0.00E+00 1.35E-01 Be-7 5.16E-01 2.62E-01 2.53E-01 K-40 Sample ID: 362718 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014

<1.26E-02 0.00E+00 1.26E-02 I-131

<1.57E-02 0.00E+00 1.57E-02 Cs-134

<1.50E-02 0.00E+00 1.50E-02 Cs-137

<1.39E-01 0.00E+00 1.39E-01 Be-7

<5.36E-01 0.00E+00 5.36E-01 K-40 Sample ID: 363467 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014

<1.31E-02 0.00E+00 1.31E-02 I-131

<1.00E-02 0.00E+00 1.00E-02 Cs-134

<1.60E-02 0.00E+00 1.60E-02 Cs-137

<8.92E-02 0.00E+00 8.92E-02 Be-7 5.57E-01 1.87E-01 3.97E-02 K-40 Sample ID: 363919 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014

<1.89E-02 0.00E+00 1.89E-02 I-131

<1.51E-02 0.00E+00 1.51E-02 Cs-134

<1.58E-02 0.00E+00 1.58E-02 Cs-137

<1.26E-01 0.00E+00 1.26E-01 Be-7 5.92E-01 2.56E-01 2.82E-01 K-40 Sample ID: 364440 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014

<1.72E-02 0.00E+00 1.72E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 22 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 364440 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014

<1.48E-02 0.00E+00 1.48E-02 Cs-134

<1.02E-02 0.00E+00 1.02E-02 Cs-137

<9.31E-02 0.00E+00 9.31E-02 Be-7 5.78E-01 2.64E-01 3.15E-01 K-40 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 280708 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014

<2.69E-02 0.00E+00 2.69E-02 I-131

<2.09E-02 0.00E+00 2.09E-02 Cs-134

<2.21E-02 0.00E+00 2.21E-02 Cs-137

<1.34E-01 0.00E+00 1.34E-01 Be-7

<5.91E-01 0.00E+00 5.91E-01 K-40 Sample ID: 280891 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014

<1.10E-02 0.00E+00 1.10E-02 I-131

<2.12E-02 0.00E+00 2.12E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.46E-01 0.00E+00 1.46E-01 Be-7 2.88E-01 9.09E-02 3.02E-01 K-40 Sample ID: 281271 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014

<2.27E-02 0.00E+00 2.27E-02 I-131

<1.99E-02 0.00E+00 1.99E-02 Cs-134

<1.76E-02 0.00E+00 1.76E-02 Cs-137

<1.28E-01 0.00E+00 1.28E-01 Be-7 3.56E-01 1.56E-01 2.15E-01 K-40 Sample ID: 281630 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014

<1.53E-02 0.00E+00 1.53E-02 I-131

<1.38E-02 0.00E+00 1.38E-02 Cs-134

<1.25E-02 0.00E+00 1.25E-02 Cs-137

<8.04E-02 0.00E+00 8.04E-02 Be-7 4.10E-01 9.40E-02 5.83E-02 K-40 Sample ID: 282198 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014

<2.65E-02 0.00E+00 2.65E-02 I-131

<1.73E-02 0.00E+00 1.73E-02 Cs-134

<1.88E-02 0.00E+00 1.88E-02 Cs-137

<1.40E-01 0.00E+00 1.40E-01 Be-7 5.13E-01 1.21E-01 7.70E-02 K-40 Sample ID: 283060 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014

<2.55E-02 0.00E+00 2.55E-02 I-131

<2.17E-02 0.00E+00 2.17E-02 Cs-134

<2.94E-02 0.00E+00 2.94E-02 Cs-137

<1.84E-01 0.00E+00 1.84E-01 Be-7 3.57E-01 1.08E-01 8.78E-02 K-40 Sample ID: 283442 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014

<1.88E-02 0.00E+00 1.88E-02 I-131

<1.71E-02 0.00E+00 1.71E-02 Cs-134

<1.37E-02 0.00E+00 1.37E-02 Cs-137

<1.22E-01 0.00E+00 1.22E-01 Be-7

<4.99E-01 0.00E+00 4.99E-01 K-40 Sample ID: 284630 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014

<2.86E-02 0.00E+00 2.86E-02 I-131

<2.10E-02 0.00E+00 2.10E-02 Cs-134

<1.21E-02 0.00E+00 1.21E-02 Cs-137

<1.59E-01 0.00E+00 1.59E-01 Be-7 4.12E-01 1.33E-01 2.69E-01 K-40 Sample ID: 285192 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014

<2.36E-02 0.00E+00 2.36E-02 I-131

<2.09E-02 0.00E+00 2.09E-02 Cs-134

<1.78E-02 0.00E+00 1.78E-02 Cs-137 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 23 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 285192 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014

<1.37E-01 0.00E+00 1.37E-01 Be-7 5.71E-01 1.28E-01 2.14E-01 K-40 Sample ID: 285799 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014

<2.22E-02 0.00E+00 2.22E-02 I-131

<2.22E-02 0.00E+00 2.22E-02 Cs-134

<2.19E-02 0.00E+00 2.19E-02 Cs-137

<1.34E-01 0.00E+00 1.34E-01 Be-7 4.30E-01 1.11E-01 2.07E-01 K-40 Sample ID: 286314 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014

<2.75E-02 0.00E+00 2.75E-02 I-131

<1.60E-02 0.00E+00 1.60E-02 Cs-134

<2.48E-02 0.00E+00 2.48E-02 Cs-137

<1.30E-01 0.00E+00 1.30E-01 Be-7 2.83E-01 8.96E-02 2.11E-01 K-40 Sample ID: 287162 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014

<1.12E-02 0.00E+00 1.12E-02 I-131

<9.31E-03 0.00E+00 9.31E-03 Cs-134

<1.06E-02 0.00E+00 1.06E-02 Cs-137

<7.69E-02 0.00E+00 7.69E-02 Be-7 3.84E-01 6.78E-02 1.02E-01 K-40 Sample ID: 288419 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014

<2.21E-02 0.00E+00 2.21E-02 I-131

<1.54E-02 0.00E+00 1.54E-02 Cs-134

<2.18E-02 0.00E+00 2.18E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7 5.71E-01 1.28E-01 2.12E-01 K-40 Sample ID: 289153 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014

<1.85E-02 0.00E+00 1.85E-02 I-131

<1.60E-02 0.00E+00 1.60E-02 Cs-134

<1.82E-02 0.00E+00 1.82E-02 Cs-137

<1.46E-01 0.00E+00 1.46E-01 Be-7 3.17E-01 1.22E-01 7.73E-02 K-40 Sample ID: 289539 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014

<9.73E-03 0.00E+00 9.73E-03 I-131

<7.54E-03 0.00E+00 7.54E-03 Cs-134

<1.00E-02 0.00E+00 1.00E-02 Cs-137

<8.54E-02 0.00E+00 8.54E-02 Be-7 4.52E-01 9.14E-02 1.08E-01 K-40 Sample ID: 290021 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014

<2.64E-02 0.00E+00 2.64E-02 I-131

<2.04E-02 0.00E+00 2.04E-02 Cs-134

<1.79E-02 0.00E+00 1.79E-02 Cs-137

<1.62E-01 0.00E+00 1.62E-01 Be-7 3.65E-01 1.24E-01 2.05E-01 K-40 Sample ID: 292102 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014

<2.17E-02 0.00E+00 2.17E-02 I-131

<2.00E-02 0.00E+00 2.00E-02 Cs-134

<2.19E-02 0.00E+00 2.19E-02 Cs-137

<1.65E-01 0.00E+00 1.65E-01 Be-7 4.99E-01 1.50E-01 2.55E-01 K-40 Sample ID: 292832 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014

<2.56E-02 0.00E+00 2.56E-02 I-131

<1.35E-02 0.00E+00 1.35E-02 Cs-134

<2.18E-02 0.00E+00 2.18E-02 Cs-137

<1.63E-01 0.00E+00 1.63E-01 Be-7 4.28E-01 1.11E-01 2.05E-01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 24 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 293103 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014

<2.22E-02 0.00E+00 2.22E-02 I-131

<1.60E-02 0.00E+00 1.60E-02 Cs-134

<2.39E-02 0.00E+00 2.39E-02 Cs-137

<1.65E-01 0.00E+00 1.65E-01 Be-7

<5.00E-01 0.00E+00 5.00E-01 K-40 Sample ID: 294745 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014

<1.13E-02 0.00E+00 1.13E-02 I-131

<7.93E-03 0.00E+00 7.93E-03 Cs-134

<1.49E-02 0.00E+00 1.49E-02 Cs-137

<6.76E-02 0.00E+00 6.76E-02 Be-7 2.78E-01 8.44E-02 1.54E-01 K-40 Sample ID: 295271 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014

<1.46E-02 0.00E+00 1.46E-02 I-131

<6.94E-03 0.00E+00 6.94E-03 Cs-134

<8.47E-03 0.00E+00 8.47E-03 Cs-137

<4.71E-02 0.00E+00 4.71E-02 Be-7 2.20E-01 7.31E-02 1.42E-01 K-40 Sample ID: 295595 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014

<2.69E-02 0.00E+00 2.69E-02 I-131

<1.67E-02 0.00E+00 1.67E-02 Cs-134

<2.74E-02 0.00E+00 2.74E-02 Cs-137

<1.37E-01 0.00E+00 1.37E-01 Be-7 3.99E-01 1.15E-01 8.99E-02 K-40 Sample ID: 295997 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014

<1.24E-02 0.00E+00 1.24E-02 I-131

<5.66E-03 0.00E+00 5.66E-03 Cs-134

<1.04E-02 0.00E+00 1.04E-02 Cs-137

<8.18E-02 0.00E+00 8.18E-02 Be-7 5.86E-01 8.36E-02 3.23E-02 K-40 Sample ID: 296262 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014

<1.46E-02 0.00E+00 1.46E-02 I-131

<1.14E-02 0.00E+00 1.14E-02 Cs-134

<1.48E-02 0.00E+00 1.48E-02 Cs-137

<1.24E-01 0.00E+00 1.24E-01 Be-7 5.41E-01 1.13E-01 6.35E-02 K-40 Sample ID: 296792 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014

<2.43E-02 0.00E+00 2.43E-02 I-131

<1.95E-02 0.00E+00 1.95E-02 Cs-134

<1.54E-02 0.00E+00 1.54E-02 Cs-137

<7.61E-02 0.00E+00 7.61E-02 Be-7

<7.14E-01 0.00E+00 7.14E-01 K-40 Sample ID: 297067 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014

<1.63E-02 0.00E+00 1.63E-02 I-131

<2.35E-02 0.00E+00 2.35E-02 Cs-134

<1.88E-02 0.00E+00 1.88E-02 Cs-137

<1.24E-01 0.00E+00 1.24E-01 Be-7 4.56E-01 1.14E-01 2.07E-01 K-40 Sample ID: 297422 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014

<2.14E-02 0.00E+00 2.14E-02 I-131

<2.01E-02 0.00E+00 2.01E-02 Cs-134

<1.23E-02 0.00E+00 1.23E-02 Cs-137

<1.40E-01 0.00E+00 1.40E-01 Be-7 6.31E-01 1.35E-01 3.28E-01 K-40 Sample ID: 297677 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014

<3.02E-02 0.00E+00 3.02E-02 I-131

<1.20E-02 0.00E+00 1.20E-02 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<9.09E-02 0.00E+00 9.09E-02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 25 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 297677 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014 4.82E-01 1.71E-01 3.84E-02 K-40 Sample ID: 350525 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014

<3.99E-02 0.00E+00 3.99E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<1.63E-02 0.00E+00 1.63E-02 Cs-137

<3.18E-02 0.00E+00 3.18E-02 Be-7

<4.92E-01 0.00E+00 4.92E-01 K-40 Sample ID: 350524 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014

<2.94E-02 0.00E+00 2.94E-02 I-131

<1.05E-02 0.00E+00 1.05E-02 Cs-134

<1.92E-02 0.00E+00 1.92E-02 Cs-137

<1.04E-01 0.00E+00 1.04E-01 Be-7 3.48E-01 2.34E-01 2.62E-01 K-40 Sample ID: 350962 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014

<1.35E-02 0.00E+00 1.35E-02 I-131

<1.85E-02 0.00E+00 1.85E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.32E-01 0.00E+00 1.32E-01 Be-7 4.33E-01 2.98E-01 3.93E-01 K-40 Sample ID: 351209 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014

<2.03E-02 0.00E+00 2.03E-02 I-131

<1.52E-02 0.00E+00 1.52E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.33E-01 0.00E+00 1.33E-01 Be-7

<5.79E-01 0.00E+00 5.79E-01 K-40 Sample ID: 351515 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014

<2.35E-02 0.00E+00 2.35E-02 I-131

<2.26E-02 0.00E+00 2.26E-02 Cs-134

<2.47E-02 0.00E+00 2.47E-02 Cs-137

<1.64E-01 0.00E+00 1.64E-01 Be-7 2.96E-01 2.97E-01 4.59E-01 K-40 Sample ID: 353377 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014

<1.61E-02 0.00E+00 1.61E-02 I-131

<1.56E-02 0.00E+00 1.56E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7 4.57E-01 2.80E-01 3.28E-01 K-40 Sample ID: 353947 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014

<1.54E-02 0.00E+00 1.54E-02 I-131

<2.77E-02 0.00E+00 2.77E-02 Cs-134

<1.85E-02 0.00E+00 1.85E-02 Cs-137

<2.60E-02 0.00E+00 2.60E-02 Be-7 3.07E-01 2.00E-01 2.11E-01 K-40 Sample ID: 354392 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014

<2.17E-02 0.00E+00 2.17E-02 I-131

<2.64E-02 0.00E+00 2.64E-02 Cs-134

<2.89E-02 0.00E+00 2.89E-02 Cs-137

<2.12E-01 0.00E+00 2.12E-01 Be-7

<7.58E-01 0.00E+00 7.58E-01 K-40 Sample ID: 354708 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014

<1.10E-02 0.00E+00 1.10E-02 I-131

<1.95E-02 0.00E+00 1.95E-02 Cs-134

<1.89E-02 0.00E+00 1.89E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7 7.41E-01 3.03E-01 8.04E-02 K-40 Sample ID: 355045 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014

<1.40E-02 0.00E+00 1.40E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 26 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 355045 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014

<1.52E-02 0.00E+00 1.52E-02 Cs-134

<4.78E-03 0.00E+00 4.78E-03 Cs-137

<1.19E-01 0.00E+00 1.19E-01 Be-7 5.66E-01 2.64E-01 8.07E-02 K-40 Sample ID: 355573 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014

<1.99E-02 0.00E+00 1.99E-02 I-131

<1.32E-02 0.00E+00 1.32E-02 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7 5.68E-01 2.65E-01 8.10E-02 K-40 Sample ID: 356394 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014

<2.51E-02 0.00E+00 2.51E-02 I-131

<1.69E-02 0.00E+00 1.69E-02 Cs-134

<1.63E-02 0.00E+00 1.63E-02 Cs-137

<1.20E-01 0.00E+00 1.20E-01 Be-7 4.79E-01 3.22E-01 4.30E-01 K-40 Sample ID: 356978 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014

<1.12E-02 0.00E+00 1.12E-02 I-131

<1.69E-02 0.00E+00 1.69E-02 Cs-134

<1.89E-02 0.00E+00 1.89E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7 4.52E-01 2.70E-01 3.01E-01 K-40 Sample ID: 357984 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014

<2.47E-02 0.00E+00 2.47E-02 I-131

<1.52E-02 0.00E+00 1.52E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.65E-01 0.00E+00 1.65E-01 Be-7

<5.19E-01 0.00E+00 5.19E-01 K-40 Sample ID: 358607 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014

<1.79E-02 0.00E+00 1.79E-02 I-131

<1.04E-02 0.00E+00 1.04E-02 Cs-134

<2.12E-02 0.00E+00 2.12E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7 8.63E-01 3.29E-01 8.06E-02 K-40 Sample ID: 359211 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014

<1.24E-02 0.00E+00 1.24E-02 I-131

<9.66E-03 0.00E+00 9.66E-03 Cs-134

<1.42E-02 0.00E+00 1.42E-02 Cs-137

<7.59E-02 0.00E+00 7.59E-02 Be-7 4.39E-01 1.77E-01 1.55E-01 K-40 Sample ID: 359966 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014

<1.00E-02 0.00E+00 1.00E-02 I-131

<1.15E-02 0.00E+00 1.15E-02 Cs-134

<1.21E-02 0.00E+00 1.21E-02 Cs-137

<9.20E-02 0.00E+00 9.20E-02 Be-7 4.54E-01 1.65E-01 3.85E-02 K-40 Sample ID: 360657 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014

<1.80E-02 0.00E+00 1.80E-02 I-131

<2.12E-02 0.00E+00 2.12E-02 Cs-134

<1.64E-02 0.00E+00 1.64E-02 Cs-137

<1.66E-01 0.00E+00 1.66E-01 Be-7 4.47E-01 2.34E-01 8.07E-02 K-40 Sample ID: 361525 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014

<1.70E-02 0.00E+00 1.70E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.82E-01 0.00E+00 1.82E-01 Be-7 4.76E-01 2.42E-01 8.07E-02 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 27 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 361910 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014

<1.77E-02 0.00E+00 1.77E-02 I-131

<8.05E-03 0.00E+00 8.05E-03 Cs-134

<1.47E-02 0.00E+00 1.47E-02 Cs-137

<1.36E-01 0.00E+00 1.36E-01 Be-7 5.28E-01 2.29E-01 6.50E-02 K-40 Sample ID: 362719 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014

<1.27E-02 0.00E+00 1.27E-02 I-131

<8.19E-03 0.00E+00 8.19E-03 Cs-134

<1.67E-02 0.00E+00 1.67E-02 Cs-137

<8.16E-02 0.00E+00 8.16E-02 Be-7 3.67E-01 1.92E-01 6.64E-02 K-40 Sample ID: 363468 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014

<1.16E-02 0.00E+00 1.16E-02 I-131

<8.28E-03 0.00E+00 8.28E-03 Cs-134

<1.12E-02 0.00E+00 1.12E-02 Cs-137

<7.72E-02 0.00E+00 7.72E-02 Be-7 4.75E-01 1.94E-01 1.94E-01 K-40 Sample ID: 363920 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014

<1.72E-02 0.00E+00 1.72E-02 I-131

<1.47E-02 0.00E+00 1.47E-02 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7 5.67E-01 2.42E-01 2.59E-01 K-40 Sample ID: 364441 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014

<8.31E-03 0.00E+00 8.31E-03 I-131

<7.35E-03 0.00E+00 7.35E-03 Cs-134

<8.08E-03 0.00E+00 8.08E-03 Cs-137

<6.42E-02 0.00E+00 6.42E-02 Be-7 3.26E-01 1.19E-01 1.24E-01 K-40 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 280735 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014

<2.02E-02 0.00E+00 2.02E-02 I-131

<1.79E-02 0.00E+00 1.79E-02 Cs-134

<1.96E-02 0.00E+00 1.96E-02 Cs-137

<1.26E-01 0.00E+00 1.26E-01 Be-7 3.55E-01 1.40E-01 3.28E-01 K-40 Sample ID: 280918 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014

<1.86E-02 0.00E+00 1.86E-02 I-131

<1.24E-02 0.00E+00 1.24E-02 Cs-134

<1.70E-02 0.00E+00 1.70E-02 Cs-137

<1.49E-01 0.00E+00 1.49E-01 Be-7 6.32E-01 1.35E-01 2.07E-01 K-40 Sample ID: 281298 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014

<2.07E-02 0.00E+00 2.07E-02 I-131

<1.45E-02 0.00E+00 1.45E-02 Cs-134

<1.72E-02 0.00E+00 1.72E-02 Cs-137

<1.25E-01 0.00E+00 1.25E-01 Be-7 5.72E-01 1.17E-01 6.44E-02 K-40 Sample ID: 281657 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014

<1.17E-02 0.00E+00 1.17E-02 I-131

<6.93E-03 0.00E+00 6.93E-03 Cs-134

<1.05E-02 0.00E+00 1.05E-02 Cs-137

<7.56E-02 0.00E+00 7.56E-02 Be-7 4.65E-01 7.45E-02 1.27E-01 K-40 Sample ID: 282225 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014

<2.18E-02 0.00E+00 2.18E-02 I-131

<1.74E-02 0.00E+00 1.74E-02 Cs-134 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 28 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 282225 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014

<1.75E-02 0.00E+00 1.75E-02 Cs-137

<1.61E-01 0.00E+00 1.61E-01 Be-7 4.84E-01 1.18E-01 7.70E-02 K-40 Sample ID: 283087 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014

<1.10E-02 0.00E+00 1.10E-02 I-131

<1.09E-02 0.00E+00 1.09E-02 Cs-134

<1.14E-02 0.00E+00 1.14E-02 Cs-137

<6.28E-02 0.00E+00 6.28E-02 Be-7 5.03E-01 8.17E-02 1.24E-01 K-40 Sample ID: 283469 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014

<7.12E-03 0.00E+00 7.12E-03 I-131

<1.73E-02 0.00E+00 1.73E-02 Cs-134

<1.23E-02 0.00E+00 1.23E-02 Cs-137

<9.34E-02 0.00E+00 9.34E-02 Be-7 4.22E-01 9.44E-02 1.92E-01 K-40 Sample ID: 284656 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014

<1.21E-02 0.00E+00 1.21E-02 I-131

<7.50E-03 0.00E+00 7.50E-03 Cs-134

<9.61E-03 0.00E+00 9.61E-03 Cs-137

<6.60E-02 0.00E+00 6.60E-02 Be-7 4.58E-01 8.43E-02 8.53E-02 K-40 Sample ID: 285218 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014

<2.12E-02 0.00E+00 2.12E-02 I-131

<1.75E-02 0.00E+00 1.75E-02 Cs-134

<2.25E-02 0.00E+00 2.25E-02 Cs-137

<1.12E-01 0.00E+00 1.12E-01 Be-7

<5.39E-01 0.00E+00 5.39E-01 K-40 Sample ID: 285825 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014

<2.23E-02 0.00E+00 2.23E-02 I-131

<1.44E-02 0.00E+00 1.44E-02 Cs-134

<1.60E-02 0.00E+00 1.60E-02 Cs-137

<1.91E-01 0.00E+00 1.91E-01 Be-7

<6.05E-01 0.00E+00 6.05E-01 K-40 Sample ID: 286340 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014

<2.28E-02 0.00E+00 2.28E-02 I-131

<1.73E-02 0.00E+00 1.73E-02 Cs-134

<1.99E-02 0.00E+00 1.99E-02 Cs-137

<1.75E-01 0.00E+00 1.75E-01 Be-7 6.24E-01 1.33E-01 3.76E-01 K-40 Sample ID: 287188 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014

<1.35E-02 0.00E+00 1.35E-02 I-131

<1.13E-02 0.00E+00 1.13E-02 Cs-134

<8.92E-03 0.00E+00 8.92E-03 Cs-137

<7.73E-02 0.00E+00 7.73E-02 Be-7 3.52E-01 8.29E-02 1.88E-01 K-40 Sample ID: 288445 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014

<9.23E-03 0.00E+00 9.23E-03 I-131

<1.11E-02 0.00E+00 1.11E-02 Cs-134

<8.47E-03 0.00E+00 8.47E-03 Cs-137

<6.21E-02 0.00E+00 6.21E-02 Be-7 6.70E-01 9.84E-02 1.06E-01 K-40 Sample ID: 289179 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014

<2.04E-02 0.00E+00 2.04E-02 I-131

<2.25E-02 0.00E+00 2.25E-02 Cs-134

<1.44E-02 0.00E+00 1.44E-02 Cs-137

<9.66E-02 0.00E+00 9.66E-02 Be-7 4.30E-01 1.11E-01 2.72E-01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 29 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 289565 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014

<1.07E-02 0.00E+00 1.07E-02 I-131

<1.15E-02 0.00E+00 1.15E-02 Cs-134

<1.02E-02 0.00E+00 1.02E-02 Cs-137

<6.22E-02 0.00E+00 6.22E-02 Be-7 3.23E-01 9.50E-02 1.38E-01 K-40 Sample ID: 290047 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014

<7.56E-03 0.00E+00 7.56E-03 I-131

<7.75E-03 0.00E+00 7.75E-03 Cs-134

<9.72E-03 0.00E+00 9.72E-03 Cs-137

<6.83E-02 0.00E+00 6.83E-02 Be-7 5.90E-01 9.51E-02 8.60E-02 K-40 Sample ID: 292128 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014

<9.54E-03 0.00E+00 9.54E-03 I-131

<8.75E-03 0.00E+00 8.75E-03 Cs-134

<1.15E-02 0.00E+00 1.15E-02 Cs-137

<7.41E-02 0.00E+00 7.41E-02 Be-7 5.98E-01 8.46E-02 8.59E-02 K-40 Sample ID: 292858 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014

<1.24E-02 0.00E+00 1.24E-02 I-131

<7.14E-03 0.00E+00 7.14E-03 Cs-134

<1.23E-02 0.00E+00 1.23E-02 Cs-137

<7.09E-02 0.00E+00 7.09E-02 Be-7 3.95E-01 9.16E-02 1.67E-01 K-40 Sample ID: 293129 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014

<1.22E-02 0.00E+00 1.22E-02 I-131

<8.86E-03 0.00E+00 8.86E-03 Cs-134

<2.22E-02 0.00E+00 2.22E-02 Cs-137

<1.15E-01 0.00E+00 1.15E-01 Be-7 3.54E-01 1.41E-01 1.98E-01 K-40 Sample ID: 294771 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014

<1.19E-02 0.00E+00 1.19E-02 I-131

<1.04E-02 0.00E+00 1.04E-02 Cs-134

<1.43E-02 0.00E+00 1.43E-02 Cs-137

<6.04E-02 0.00E+00 6.04E-02 Be-7 3.47E-01 6.94E-02 1.01E-01 K-40 Sample ID: 295297 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014

<2.56E-02 0.00E+00 2.56E-02 I-131

<1.24E-02 0.00E+00 1.24E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.01E-01 0.00E+00 1.01E-01 Be-7

<5.32E-01 0.00E+00 5.32E-01 K-40 Sample ID: 295621 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014

<2.79E-02 0.00E+00 2.79E-02 I-131

<2.34E-02 0.00E+00 2.34E-02 Cs-134

<2.95E-02 0.00E+00 2.95E-02 Cs-137

<1.88E-01 0.00E+00 1.88E-01 Be-7 5.32E-01 1.33E-01 3.11E-01 K-40 Sample ID: 296023 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014

<9.34E-03 0.00E+00 9.34E-03 I-131

<9.14E-03 0.00E+00 9.14E-03 Cs-134

<1.41E-02 0.00E+00 1.41E-02 Cs-137

<9.60E-02 0.00E+00 9.60E-02 Be-7 5.19E-01 1.06E-01 1.98E-01 K-40 Sample ID: 296288 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014

<9.65E-03 0.00E+00 9.65E-03 I-131

<1.11E-02 0.00E+00 1.11E-02 Cs-134

<1.77E-02 0.00E+00 1.77E-02 Cs-137

<8.78E-02 0.00E+00 8.78E-02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 30 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 296288 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014 4.64E-01 9.53E-02 1.24E-01 K-40 Sample ID: 296818 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014

<1.86E-02 0.00E+00 1.86E-02 I-131

<1.96E-02 0.00E+00 1.96E-02 Cs-134

<1.54E-02 0.00E+00 1.54E-02 Cs-137

<1.40E-01 0.00E+00 1.40E-01 Be-7

<5.70E-01 0.00E+00 5.70E-01 K-40 Sample ID: 297093 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014

<1.20E-02 0.00E+00 1.20E-02 I-131

<1.28E-02 0.00E+00 1.28E-02 Cs-134

<1.24E-02 0.00E+00 1.24E-02 Cs-137

<7.05E-02 0.00E+00 7.05E-02 Be-7 3.21E-01 1.10E-01 1.76E-01 K-40 Sample ID: 297448 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014

<2.06E-02 0.00E+00 2.06E-02 I-131

<1.73E-02 0.00E+00 1.73E-02 Cs-134

<2.19E-02 0.00E+00 2.19E-02 Cs-137

<1.48E-01 0.00E+00 1.48E-01 Be-7 3.84E-01 1.44E-01 3.28E-01 K-40 Sample ID: 297703 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014

<3.04E-02 0.00E+00 3.04E-02 I-131

<8.13E-03 0.00E+00 8.13E-03 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<8.75E-02 0.00E+00 8.75E-02 Be-7 5.31E-01 2.62E-01 2.68E-01 K-40 Sample ID: 350527 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014

<2.58E-02 0.00E+00 2.58E-02 I-131

<2.35E-02 0.00E+00 2.35E-02 Cs-134

<1.29E-02 0.00E+00 1.29E-02 Cs-137

<1.41E-01 0.00E+00 1.41E-01 Be-7 3.83E-01 2.70E-01 3.48E-01 K-40 Sample ID: 350526 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014

<1.75E-02 0.00E+00 1.75E-02 I-131

<1.53E-02 0.00E+00 1.53E-02 Cs-134

<2.51E-02 0.00E+00 2.51E-02 Cs-137

<1.47E-01 0.00E+00 1.47E-01 Be-7 5.81E-01 2.97E-01 2.89E-01 K-40 Sample ID: 350963 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/1/2014

<5.43E-02 0.00E+00 5.43E-02 I-131

<2.96E-02 0.00E+00 2.96E-02 Cs-134

<2.92E-02 0.00E+00 2.92E-02 Cs-137

<3.04E-01 0.00E+00 3.04E-01 Be-7 1.07E+00 6.65E-01 8.11E-01 K-40 Sample ID: 351210 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/6/2014 - 8/12/2014

<2.77E-02 0.00E+00 2.77E-02 I-131

<1.78E-02 0.00E+00 1.78E-02 Cs-134

<2.49E-02 0.00E+00 2.49E-02 Cs-137

<1.55E-01 0.00E+00 1.55E-01 Be-7 5.02E-01 3.06E-01 3.38E-01 K-40 Sample ID: 351516 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014

<1.60E-02 0.00E+00 1.60E-02 I-131

<2.26E-02 0.00E+00 2.26E-02 Cs-134

<1.29E-02 0.00E+00 1.29E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7 6.57E-01 3.14E-01 3.00E-01 K-40 Sample ID: 353378 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014

<1.61E-02 0.00E+00 1.61E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 31 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 353378 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014

<1.56E-02 0.00E+00 1.56E-02 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.19E-01 0.00E+00 1.19E-01 Be-7 4.90E-01 2.74E-01 2.83E-01 K-40 Sample ID: 353948 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014

<2.09E-02 0.00E+00 2.09E-02 I-131

<1.32E-02 0.00E+00 1.32E-02 Cs-134

<1.39E-02 0.00E+00 1.39E-02 Cs-137

<1.40E-01 0.00E+00 1.40E-01 Be-7 3.80E-01 1.99E-01 6.86E-02 K-40 Sample ID: 354393 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014

<1.19E-02 0.00E+00 1.19E-02 I-131

<2.23E-02 0.00E+00 2.23E-02 Cs-134

<1.47E-02 0.00E+00 1.47E-02 Cs-137

<1.63E-01 0.00E+00 1.63E-01 Be-7 3.04E-01 2.04E-01 9.15E-02 K-40 Sample ID: 354709 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014

<1.80E-02 0.00E+00 1.80E-02 I-131

<1.55E-02 0.00E+00 1.55E-02 Cs-134

<1.63E-02 0.00E+00 1.63E-02 Cs-137

<1.44E-01 0.00E+00 1.44E-01 Be-7

<5.97E-01 0.00E+00 5.97E-01 K-40 Sample ID: 355047 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014

<1.62E-02 0.00E+00 1.62E-02 I-131

<1.70E-02 0.00E+00 1.70E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7

<5.81E-01 0.00E+00 5.81E-01 K-40 Sample ID: 355574 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014

<2.45E-02 0.00E+00 2.45E-02 I-131

<1.70E-02 0.00E+00 1.70E-02 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.44E-01 0.00E+00 1.44E-01 Be-7

<6.37E-01 0.00E+00 6.37E-01 K-40 Sample ID: 356395 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014

<2.78E-02 0.00E+00 2.78E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<1.29E-02 0.00E+00 1.29E-02 Cs-137

<1.20E-01 0.00E+00 1.20E-01 Be-7

<5.17E-01 0.00E+00 5.17E-01 K-40 Sample ID: 356979 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014

<2.42E-02 0.00E+00 2.42E-02 I-131

<1.04E-02 0.00E+00 1.04E-02 Cs-134

<1.29E-02 0.00E+00 1.29E-02 Cs-137

<1.56E-01 0.00E+00 1.56E-01 Be-7 4.65E-01 2.61E-01 2.56E-01 K-40 Sample ID: 357985 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014

<1.60E-02 0.00E+00 1.60E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<2.12E-02 0.00E+00 2.12E-02 Cs-137

<1.44E-01 0.00E+00 1.44E-01 Be-7 5.65E-01 2.63E-01 8.05E-02 K-40 Sample ID: 358608 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014

<1.60E-02 0.00E+00 1.60E-02 I-131

<1.70E-02 0.00E+00 1.70E-02 Cs-134

<1.64E-02 0.00E+00 1.64E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7

<5.61E-01 0.00E+00 5.61E-01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 32 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 359212 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014

<1.31E-02 0.00E+00 1.31E-02 I-131

<1.48E-02 0.00E+00 1.48E-02 Cs-134

<1.14E-02 0.00E+00 1.14E-02 Cs-137

<1.24E-01 0.00E+00 1.24E-01 Be-7 4.65E-01 3.22E-01 4.49E-01 K-40 Sample ID: 359967 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014

<1.25E-02 0.00E+00 1.25E-02 I-131

<9.69E-03 0.00E+00 9.69E-03 Cs-134

<1.42E-02 0.00E+00 1.42E-02 Cs-137

<8.29E-02 0.00E+00 8.29E-02 Be-7 3.60E-01 1.58E-01 1.38E-01 K-40 Sample ID: 360658 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014

<1.92E-02 0.00E+00 1.92E-02 I-131

<1.81E-02 0.00E+00 1.81E-02 Cs-134

<2.59E-02 0.00E+00 2.59E-02 Cs-137

<1.52E-01 0.00E+00 1.52E-01 Be-7 3.78E-01 2.12E-01 7.88E-02 K-40 Sample ID: 361526 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014

<1.85E-02 0.00E+00 1.85E-02 I-131

<1.99E-02 0.00E+00 1.99E-02 Cs-134

<2.49E-02 0.00E+00 2.49E-02 Cs-137

<8.05E-02 0.00E+00 8.05E-02 Be-7 2.98E-01 2.51E-01 3.51E-01 K-40 Sample ID: 361911 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014

<3.06E-02 0.00E+00 3.06E-02 I-131

<9.08E-03 0.00E+00 9.08E-03 Cs-134

<1.66E-02 0.00E+00 1.66E-02 Cs-137

<1.45E-01 0.00E+00 1.45E-01 Be-7 4.14E-01 2.36E-01 2.40E-01 K-40 Sample ID: 362720 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014

<1.59E-02 0.00E+00 1.59E-02 I-131

<7.49E-03 0.00E+00 7.49E-03 Cs-134

<1.44E-02 0.00E+00 1.44E-02 Cs-137

<9.84E-02 0.00E+00 9.84E-02 Be-7 3.29E-01 1.77E-01 2.15E-01 K-40 Sample ID: 363469 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014

<1.22E-02 0.00E+00 1.22E-02 I-131

<7.42E-03 0.00E+00 7.42E-03 Cs-134

<1.21E-02 0.00E+00 1.21E-02 Cs-137

<9.53E-02 0.00E+00 9.53E-02 Be-7 4.55E-01 1.95E-01 2.06E-01 K-40 Sample ID: 363921 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014

<1.43E-02 0.00E+00 1.43E-02 I-131

<8.22E-03 0.00E+00 8.22E-03 Cs-134

<1.54E-02 0.00E+00 1.54E-02 Cs-137

<1.23E-01 0.00E+00 1.23E-01 Be-7 5.13E-01 1.95E-01 4.79E-02 K-40 Sample ID: 364442 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014

<1.43E-02 0.00E+00 1.43E-02 I-131

<1.48E-02 0.00E+00 1.48E-02 Cs-134

<1.55E-02 0.00E+00 1.55E-02 Cs-137

<1.00E-01 0.00E+00 1.00E-01 Be-7 4.67E-01 2.03E-01 1.79E-01 K-40 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 280710 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014

<1.82E-02 0.00E+00 1.82E-02 I-131

<2.19E-02 0.00E+00 2.19E-02 Cs-134 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 33 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 280710 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014

<1.32E-02 0.00E+00 1.32E-02 Cs-137

<1.31E-01 0.00E+00 1.31E-01 Be-7 6.00E-01 1.31E-01 2.15E-01 K-40 Sample ID: 280893 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014

<2.64E-02 0.00E+00 2.64E-02 I-131

<2.09E-02 0.00E+00 2.09E-02 Cs-134

<1.84E-02 0.00E+00 1.84E-02 Cs-137

<1.34E-01 0.00E+00 1.34E-01 Be-7 4.38E-01 1.13E-01 2.10E-01 K-40 Sample ID: 281273 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014

<1.53E-02 0.00E+00 1.53E-02 I-131

<8.16E-03 0.00E+00 8.16E-03 Cs-134

<1.34E-02 0.00E+00 1.34E-02 Cs-137

<1.10E-01 0.00E+00 1.10E-01 Be-7

<4.48E-01 0.00E+00 4.48E-01 K-40 Sample ID: 281632 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014

<1.66E-02 0.00E+00 1.66E-02 I-131

<1.47E-02 0.00E+00 1.47E-02 Cs-134

<1.35E-02 0.00E+00 1.35E-02 Cs-137

<9.63E-02 0.00E+00 9.63E-02 Be-7 4.89E-01 1.07E-01 1.65E-01 K-40 Sample ID: 282200 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014

<1.96E-02 0.00E+00 1.96E-02 I-131

<2.27E-02 0.00E+00 2.27E-02 Cs-134

<2.24E-02 0.00E+00 2.24E-02 Cs-137

<1.60E-01 0.00E+00 1.60E-01 Be-7

<5.31E-01 0.00E+00 5.31E-01 K-40 Sample ID: 283062 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014

<1.24E-02 0.00E+00 1.24E-02 I-131

<8.16E-03 0.00E+00 8.16E-03 Cs-134

<1.09E-02 0.00E+00 1.09E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7 4.67E-01 1.13E-01 7.42E-02 K-40 Sample ID: 283444 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014

<1.05E-02 0.00E+00 1.05E-02 I-131

<7.88E-03 0.00E+00 7.88E-03 Cs-134

<6.78E-03 0.00E+00 6.78E-03 Cs-137

<6.42E-02 0.00E+00 6.42E-02 Be-7 4.75E-01 8.00E-02 1.16E-01 K-40 Sample ID: 284631 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014

<9.67E-03 0.00E+00 9.67E-03 I-131

<9.64E-03 0.00E+00 9.64E-03 Cs-134

<9.46E-03 0.00E+00 9.46E-03 Cs-137

<7.57E-02 0.00E+00 7.57E-02 Be-7 2.72E-01 9.17E-02 1.69E-01 K-40 Sample ID: 285193 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014

<2.68E-02 0.00E+00 2.68E-02 I-131

<2.12E-02 0.00E+00 2.12E-02 Cs-134

<2.27E-02 0.00E+00 2.27E-02 Cs-137

<1.55E-01 0.00E+00 1.55E-01 Be-7 8.25E-01 1.53E-01 2.70E-01 K-40 Sample ID: 285800 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014

<1.66E-02 0.00E+00 1.66E-02 I-131

<1.33E-02 0.00E+00 1.33E-02 Cs-134

<1.60E-02 0.00E+00 1.60E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7 3.14E-01 8.70E-02 6.53E-02 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 34 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 286315 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014

<2.40E-02 0.00E+00 2.40E-02 I-131

<1.60E-02 0.00E+00 1.60E-02 Cs-134

<2.48E-02 0.00E+00 2.48E-02 Cs-137

<1.55E-01 0.00E+00 1.55E-01 Be-7 6.80E-01 1.39E-01 2.66E-01 K-40 Sample ID: 287163 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014

<1.16E-02 0.00E+00 1.16E-02 I-131

<1.00E-02 0.00E+00 1.00E-02 Cs-134

<3.32E-03 0.00E+00 3.32E-03 Cs-137

<1.11E-01 0.00E+00 1.11E-01 Be-7 2.06E-01 8.90E-02 1.92E-01 K-40 Sample ID: 288420 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014

<2.48E-02 0.00E+00 2.48E-02 I-131

<1.83E-02 0.00E+00 1.83E-02 Cs-134

<1.54E-02 0.00E+00 1.54E-02 Cs-137

<1.01E-01 0.00E+00 1.01E-01 Be-7 6.00E-01 1.31E-01 2.12E-01 K-40 Sample ID: 289154 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014

<2.01E-02 0.00E+00 2.01E-02 I-131

<2.44E-02 0.00E+00 2.44E-02 Cs-134

<2.08E-02 0.00E+00 2.08E-02 Cs-137

<1.74E-01 0.00E+00 1.74E-01 Be-7 5.47E-01 1.47E-01 3.87E-01 K-40 Sample ID: 289540 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014

<1.42E-02 0.00E+00 1.42E-02 I-131

<1.15E-02 0.00E+00 1.15E-02 Cs-134

<1.57E-02 0.00E+00 1.57E-02 Cs-137

<9.24E-02 0.00E+00 9.24E-02 Be-7 3.02E-01 6.43E-02 1.01E-01 K-40 Sample ID: 290022 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014

<1.25E-02 0.00E+00 1.25E-02 I-131

<9.35E-03 0.00E+00 9.35E-03 Cs-134

<1.39E-02 0.00E+00 1.39E-02 Cs-137

<8.85E-02 0.00E+00 8.85E-02 Be-7 2.89E-01 1.07E-01 2.34E-01 K-40 Sample ID: 292103 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014

<1.09E-02 0.00E+00 1.09E-02 I-131

<8.74E-03 0.00E+00 8.74E-03 Cs-134

<1.21E-02 0.00E+00 1.21E-02 Cs-137

<6.53E-02 0.00E+00 6.53E-02 Be-7 6.23E-01 9.45E-02 8.58E-02 K-40 Sample ID: 292833 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014

<1.24E-02 0.00E+00 1.24E-02 I-131

<7.20E-03 0.00E+00 7.20E-03 Cs-134

<1.27E-02 0.00E+00 1.27E-02 Cs-137

<1.15E-01 0.00E+00 1.15E-01 Be-7 4.55E-01 9.92E-02 5.85E-02 K-40 Sample ID: 293104 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014

<1.02E-02 0.00E+00 1.02E-02 I-131

<9.81E-03 0.00E+00 9.81E-03 Cs-134

<1.12E-02 0.00E+00 1.12E-02 Cs-137

<7.54E-02 0.00E+00 7.54E-02 Be-7 4.80E-01 8.36E-02 1.21E-01 K-40 Sample ID: 294746 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014

<9.13E-03 0.00E+00 9.13E-03 I-131

<7.55E-03 0.00E+00 7.55E-03 Cs-134

<9.16E-03 0.00E+00 9.16E-03 Cs-137

<5.69E-02 0.00E+00 5.69E-02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 35 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 294746 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014 6.72E-01 8.97E-02 3.24E-02 K-40 Sample ID: 295272 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014

<2.74E-02 0.00E+00 2.74E-02 I-131

<7.42E-03 0.00E+00 7.42E-03 Cs-134

<9.14E-03 0.00E+00 9.14E-03 Cs-137

<7.11E-02 0.00E+00 7.11E-02 Be-7 1.87E-01 9.53E-02 1.90E-01 K-40 Sample ID: 295596 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014

<3.37E-02 0.00E+00 3.37E-02 I-131

<2.92E-02 0.00E+00 2.92E-02 Cs-134

<2.34E-02 0.00E+00 2.34E-02 Cs-137

<1.98E-01 0.00E+00 1.98E-01 Be-7 5.69E-01 1.38E-01 9.05E-02 K-40 Sample ID: 295998 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014

<1.45E-02 0.00E+00 1.45E-02 I-131

<1.22E-02 0.00E+00 1.22E-02 Cs-134

<1.74E-02 0.00E+00 1.74E-02 Cs-137

<1.16E-01 0.00E+00 1.16E-01 Be-7 1.56E-01 9.60E-02 2.18E-01 K-40 Sample ID: 296263 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014

<7.84E-03 0.00E+00 7.84E-03 I-131

<1.38E-02 0.00E+00 1.38E-02 Cs-134

<8.15E-03 0.00E+00 8.15E-03 Cs-137

<8.01E-02 0.00E+00 8.01E-02 Be-7 2.93E-01 7.57E-02 1.46E-01 K-40 Sample ID: 296793 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014

<2.42E-02 0.00E+00 2.42E-02 I-131

<1.72E-02 0.00E+00 1.72E-02 Cs-134

<2.32E-02 0.00E+00 2.32E-02 Cs-137

<1.56E-01 0.00E+00 1.56E-01 Be-7

<5.11E-01 0.00E+00 5.11E-01 K-40 Sample ID: 297068 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014

<1.88E-02 0.00E+00 1.88E-02 I-131

<7.77E-03 0.00E+00 7.77E-03 Cs-134

<2.05E-02 0.00E+00 2.05E-02 Cs-137

<2.13E-01 0.00E+00 2.13E-01 Be-7 5.87E-01 1.31E-01 7.94E-02 K-40 Sample ID: 297423 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014

<2.26E-02 0.00E+00 2.26E-02 I-131

<1.65E-02 0.00E+00 1.65E-02 Cs-134

<2.86E-02 0.00E+00 2.86E-02 Cs-137

<9.63E-02 0.00E+00 9.63E-02 Be-7

<5.94E-01 0.00E+00 5.94E-01 K-40 Sample ID: 297678 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014

<2.38E-02 0.00E+00 2.38E-02 I-131

<6.99E-03 0.00E+00 6.99E-03 Cs-134

<1.10E-02 0.00E+00 1.10E-02 Cs-137

<9.70E-02 0.00E+00 9.70E-02 Be-7 5.22E-01 2.13E-01 5.66E-02 K-40 Sample ID: 350529 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014

<3.33E-02 0.00E+00 3.33E-02 I-131

<1.67E-02 0.00E+00 1.67E-02 Cs-134

<2.08E-02 0.00E+00 2.08E-02 Cs-137

<1.52E-01 0.00E+00 1.52E-01 Be-7 4.97E-01 2.45E-01 7.91E-02 K-40 Sample ID: 350528 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014

<1.96E-02 0.00E+00 1.96E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 36 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 350528 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014

<1.73E-02 0.00E+00 1.73E-02 Cs-134

<2.36E-02 0.00E+00 2.36E-02 Cs-137

<1.70E-01 0.00E+00 1.70E-01 Be-7 4.14E-01 2.52E-01 2.62E-01 K-40 Sample ID: 350964 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014

<1.73E-02 0.00E+00 1.73E-02 I-131

<1.52E-02 0.00E+00 1.52E-02 Cs-134

<1.29E-02 0.00E+00 1.29E-02 Cs-137

<8.05E-02 0.00E+00 8.05E-02 Be-7

<5.79E-01 0.00E+00 5.79E-01 K-40 Sample ID: 351211 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014

<2.19E-02 0.00E+00 2.19E-02 I-131

<1.70E-02 0.00E+00 1.70E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.45E-01 0.00E+00 1.45E-01 Be-7 4.91E-01 2.72E-01 2.74E-01 K-40 Sample ID: 351517 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014

<1.92E-02 0.00E+00 1.92E-02 I-131

<5.64E-03 0.00E+00 5.64E-03 Cs-134

<1.62E-02 0.00E+00 1.62E-02 Cs-137

<1.72E-01 0.00E+00 1.72E-01 Be-7 2.59E-01 2.01E-01 2.39E-01 K-40 Sample ID: 353379 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014

<2.50E-02 0.00E+00 2.50E-02 I-131

<1.98E-02 0.00E+00 1.98E-02 Cs-134

<1.31E-02 0.00E+00 1.31E-02 Cs-137

<1.33E-01 0.00E+00 1.33E-01 Be-7 4.50E-01 2.36E-01 8.13E-02 K-40 Sample ID: 353950 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014

<9.41E-03 0.00E+00 9.41E-03 I-131

<1.35E-02 0.00E+00 1.35E-02 Cs-134

<4.15E-03 0.00E+00 4.15E-03 Cs-137

<1.25E-01 0.00E+00 1.25E-01 Be-7 4.14E-01 2.10E-01 7.02E-02 K-40 Sample ID: 354394 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014

<2.63E-02 0.00E+00 2.63E-02 I-131

<6.66E-03 0.00E+00 6.66E-03 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.80E-01 0.00E+00 1.80E-01 Be-7

<7.20E-01 0.00E+00 7.20E-01 K-40 Sample ID: 354710 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014

<2.33E-02 0.00E+00 2.33E-02 I-131

<2.49E-02 0.00E+00 2.49E-02 Cs-134

<2.08E-02 0.00E+00 2.08E-02 Cs-137

<1.30E-01 0.00E+00 1.30E-01 Be-7

<6.72E-01 0.00E+00 6.72E-01 K-40 Sample ID: 355049 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014

<1.82E-02 0.00E+00 1.82E-02 I-131

<1.55E-02 0.00E+00 1.55E-02 Cs-134

<1.93E-02 0.00E+00 1.93E-02 Cs-137

<1.04E-01 0.00E+00 1.04E-01 Be-7 5.95E-01 3.27E-01 3.79E-01 K-40 Sample ID: 355575 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014

<2.23E-02 0.00E+00 2.23E-02 I-131

<1.53E-02 0.00E+00 1.53E-02 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.32E-01 0.00E+00 1.32E-01 Be-7 4.78E-01 2.42E-01 8.09E-02 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 37 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 356396 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014

<2.30E-02 0.00E+00 2.30E-02 I-131

<1.66E-02 0.00E+00 1.66E-02 Cs-134

<1.60E-02 0.00E+00 1.60E-02 Cs-137

<8.07E-02 0.00E+00 8.07E-02 Be-7

<4.63E-01 0.00E+00 4.63E-01 K-40 Sample ID: 356980 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014

<2.14E-02 0.00E+00 2.14E-02 I-131

<1.53E-02 0.00E+00 1.53E-02 Cs-134

<2.13E-02 0.00E+00 2.13E-02 Cs-137

<1.56E-01 0.00E+00 1.56E-01 Be-7 3.03E-01 2.66E-01 3.85E-01 K-40 Sample ID: 357986 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014

<2.42E-02 0.00E+00 2.42E-02 I-131

<1.67E-02 0.00E+00 1.67E-02 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<1.30E-01 0.00E+00 1.30E-01 Be-7 7.30E-01 2.99E-01 7.92E-02 K-40 Sample ID: 358609 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014

<2.59E-02 0.00E+00 2.59E-02 I-131

<1.85E-02 0.00E+00 1.85E-02 Cs-134

<2.32E-02 0.00E+00 2.32E-02 Cs-137

<1.19E-01 0.00E+00 1.19E-01 Be-7 5.73E-01 2.98E-01 3.02E-01 K-40 Sample ID: 359213 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014

<1.36E-02 0.00E+00 1.36E-02 I-131

<1.33E-02 0.00E+00 1.33E-02 Cs-134

<1.14E-02 0.00E+00 1.14E-02 Cs-137

<1.25E-01 0.00E+00 1.25E-01 Be-7 6.69E-01 2.73E-01 7.25E-02 K-40 Sample ID: 359968 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014

<1.43E-02 0.00E+00 1.43E-02 I-131

<1.13E-02 0.00E+00 1.13E-02 Cs-134

<1.34E-02 0.00E+00 1.34E-02 Cs-137

<7.69E-02 0.00E+00 7.69E-02 Be-7

<3.24E-01 0.00E+00 3.24E-01 K-40 Sample ID: 360659 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014

<1.63E-02 0.00E+00 1.63E-02 I-131

<2.16E-02 0.00E+00 2.16E-02 Cs-134

<4.85E-03 0.00E+00 4.85E-03 Cs-137

<1.47E-01 0.00E+00 1.47E-01 Be-7 3.63E-01 2.12E-01 8.19E-02 K-40 Sample ID: 361527 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014

<1.04E-02 0.00E+00 1.04E-02 I-131

<1.85E-02 0.00E+00 1.85E-02 Cs-134

<2.12E-02 0.00E+00 2.12E-02 Cs-137

<1.43E-01 0.00E+00 1.43E-01 Be-7

<6.69E-01 0.00E+00 6.69E-01 K-40 Sample ID: 361912 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014

<2.48E-02 0.00E+00 2.48E-02 I-131

<1.43E-02 0.00E+00 1.43E-02 Cs-134

<1.46E-02 0.00E+00 1.46E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7

<4.65E-01 0.00E+00 4.65E-01 K-40 Sample ID: 362721 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014

<2.01E-02 0.00E+00 2.01E-02 I-131

<1.51E-02 0.00E+00 1.51E-02 Cs-134

<1.16E-02 0.00E+00 1.16E-02 Cs-137

<1.07E-01 0.00E+00 1.07E-01 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 38 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

Sample ID: 362721 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014 5.83E-01 2.80E-01 2.57E-01 K-40 Sample ID: 363470 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014

<1.42E-02 0.00E+00 1.42E-02 I-131

<1.10E-02 0.00E+00 1.10E-02 Cs-134

<1.44E-02 0.00E+00 1.44E-02 Cs-137

<8.69E-02 0.00E+00 8.69E-02 Be-7 3.39E-01 1.58E-01 1.41E-01 K-40 Sample ID: 363922 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014

<1.42E-02 0.00E+00 1.42E-02 I-131

<1.06E-02 0.00E+00 1.06E-02 Cs-134

<1.18E-02 0.00E+00 1.18E-02 Cs-137

<1.12E-01 0.00E+00 1.12E-01 Be-7 7.07E-01 2.31E-01 4.79E-02 K-40 Sample ID: 364443 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014

<1.59E-02 0.00E+00 1.59E-02 I-131

<9.58E-03 0.00E+00 9.58E-03 Cs-134

<1.19E-02 0.00E+00 1.19E-02 Cs-137

<1.07E-01 0.00E+00 1.07E-01 Be-7 5.38E-01 2.16E-01 1.80E-01 K-40 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 280711 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014

<2.24E-02 0.00E+00 2.24E-02 I-131

<1.78E-02 0.00E+00 1.78E-02 Cs-134

<1.98E-02 0.00E+00 1.98E-02 Cs-137

<1.12E-01 0.00E+00 1.12E-01 Be-7

<5.59E-01 0.00E+00 5.59E-01 K-40 Sample ID: 280894 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014

<2.39E-02 0.00E+00 2.39E-02 I-131

<1.94E-02 0.00E+00 1.94E-02 Cs-134

<1.60E-02 0.00E+00 1.60E-02 Cs-137

<1.24E-01 0.00E+00 1.24E-01 Be-7 6.30E-01 1.34E-01 3.01E-01 K-40 Sample ID: 281274 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014

<1.86E-02 0.00E+00 1.86E-02 I-131

<1.49E-02 0.00E+00 1.49E-02 Cs-134

<1.99E-02 0.00E+00 1.99E-02 Cs-137

<1.54E-01 0.00E+00 1.54E-01 Be-7 3.49E-01 1.29E-01 2.31E-01 K-40 Sample ID: 281633 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014

<1.75E-02 0.00E+00 1.75E-02 I-131

<7.23E-03 0.00E+00 7.23E-03 Cs-134

<8.56E-03 0.00E+00 8.56E-03 Cs-137

<7.11E-02 0.00E+00 7.11E-02 Be-7 4.53E-01 9.88E-02 5.83E-02 K-40 Sample ID: 282201 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014

<2.24E-02 0.00E+00 2.24E-02 I-131

<2.24E-02 0.00E+00 2.24E-02 Cs-134

<2.12E-02 0.00E+00 2.12E-02 Cs-137

<1.12E-01 0.00E+00 1.12E-01 Be-7 3.97E-01 1.31E-01 2.14E-01 K-40 Sample ID: 283063 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014

<9.95E-03 0.00E+00 9.95E-03 I-131

<9.65E-03 0.00E+00 9.65E-03 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<9.25E-02 0.00E+00 9.25E-02 Be-7 5.10E-01 1.06E-01 5.99E-02 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 39 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 283445 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014

<6.82E-03 0.00E+00 6.82E-03 I-131

<1.03E-02 0.00E+00 1.03E-02 Cs-134

<1.16E-02 0.00E+00 1.16E-02 Cs-137

<4.88E-02 0.00E+00 4.88E-02 Be-7

<3.54E-01 0.00E+00 3.54E-01 K-40 Sample ID: 284632 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014

<1.41E-02 0.00E+00 1.41E-02 I-131

<9.26E-03 0.00E+00 9.26E-03 Cs-134

<9.33E-03 0.00E+00 9.33E-03 Cs-137

<8.47E-02 0.00E+00 8.47E-02 Be-7 4.38E-01 7.75E-02 9.80E-02 K-40 Sample ID: 285194 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014

<1.91E-02 0.00E+00 1.91E-02 I-131

<1.28E-02 0.00E+00 1.28E-02 Cs-134

<1.70E-02 0.00E+00 1.70E-02 Cs-137

<1.57E-01 0.00E+00 1.57E-01 Be-7 4.59E-01 1.15E-01 7.76E-02 K-40 Sample ID: 285801 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014

<2.13E-02 0.00E+00 2.13E-02 I-131

<1.68E-02 0.00E+00 1.68E-02 Cs-134

<2.06E-02 0.00E+00 2.06E-02 Cs-137

<1.32E-01 0.00E+00 1.32E-01 Be-7 7.42E-01 1.46E-01 2.06E-01 K-40 Sample ID: 286316 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014

<2.32E-02 0.00E+00 2.32E-02 I-131

<1.98E-02 0.00E+00 1.98E-02 Cs-134

<1.79E-02 0.00E+00 1.79E-02 Cs-137

<8.80E-02 0.00E+00 8.80E-02 Be-7 3.92E-01 1.34E-01 7.66E-02 K-40 Sample ID: 287164 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014

<9.58E-03 0.00E+00 9.58E-03 I-131

<8.34E-03 0.00E+00 8.34E-03 Cs-134

<8.97E-03 0.00E+00 8.97E-03 Cs-137

<7.35E-02 0.00E+00 7.35E-02 Be-7 3.22E-01 8.40E-02 1.01E-01 K-40 Sample ID: 288421 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014

<1.39E-02 0.00E+00 1.39E-02 I-131

<6.47E-03 0.00E+00 6.47E-03 Cs-134

<6.13E-03 0.00E+00 6.13E-03 Cs-137

<7.72E-02 0.00E+00 7.72E-02 Be-7

<3.80E-01 0.00E+00 3.80E-01 K-40 Sample ID: 289155 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014

<2.19E-02 0.00E+00 2.19E-02 I-131

<2.14E-02 0.00E+00 2.14E-02 Cs-134

<1.65E-02 0.00E+00 1.65E-02 Cs-137

<1.34E-01 0.00E+00 1.34E-01 Be-7 2.28E-01 1.34E-01 2.14E-01 K-40 Sample ID: 289541 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014

<1.16E-02 0.00E+00 1.16E-02 I-131

<1.03E-02 0.00E+00 1.03E-02 Cs-134

<1.11E-02 0.00E+00 1.11E-02 Cs-137

<7.97E-02 0.00E+00 7.97E-02 Be-7

<4.61E-01 0.00E+00 4.61E-01 K-40 Sample ID: 290023 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014

<1.52E-02 0.00E+00 1.52E-02 I-131

<1.55E-02 0.00E+00 1.55E-02 Cs-134

<9.64E-03 0.00E+00 9.64E-03 Cs-137

<1.11E-01 0.00E+00 1.11E-01 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 40 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 290023 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014 4.92E-01 1.07E-01 6.33E-02 K-40 Sample ID: 292104 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014

<1.31E-02 0.00E+00 1.31E-02 I-131

<1.03E-02 0.00E+00 1.03E-02 Cs-134

<1.08E-02 0.00E+00 1.08E-02 Cs-137

<6.38E-02 0.00E+00 6.38E-02 Be-7 3.59E-01 8.54E-02 9.94E-02 K-40 Sample ID: 292834 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014

<1.73E-02 0.00E+00 1.73E-02 I-131

<1.86E-02 0.00E+00 1.86E-02 Cs-134

<2.34E-02 0.00E+00 2.34E-02 Cs-137

<1.11E-01 0.00E+00 1.11E-01 Be-7 6.06E-01 1.61E-01 2.05E-01 K-40 Sample ID: 293105 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014

<8.17E-03 0.00E+00 8.17E-03 I-131

<8.93E-03 0.00E+00 8.93E-03 Cs-134

<1.01E-02 0.00E+00 1.01E-02 Cs-137

<9.68E-02 0.00E+00 9.68E-02 Be-7 3.11E-01 7.78E-02 5.26E-02 K-40 Sample ID: 294747 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014

<1.84E-02 0.00E+00 1.84E-02 I-131

<8.36E-03 0.00E+00 8.36E-03 Cs-134

<1.47E-02 0.00E+00 1.47E-02 Cs-137

<1.24E-01 0.00E+00 1.24E-01 Be-7 5.49E-01 1.43E-01 2.14E-01 K-40 Sample ID: 295273 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014

<1.60E-02 0.00E+00 1.60E-02 I-131

<1.24E-02 0.00E+00 1.24E-02 Cs-134

<2.92E-03 0.00E+00 2.92E-03 Cs-137

<7.96E-02 0.00E+00 7.96E-02 Be-7 2.27E-01 6.54E-02 5.11E-02 K-40 Sample ID: 295597 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014

<2.58E-02 0.00E+00 2.58E-02 I-131

<2.14E-02 0.00E+00 2.14E-02 Cs-134

<2.49E-02 0.00E+00 2.49E-02 Cs-137

<1.10E-01 0.00E+00 1.10E-01 Be-7

<5.80E-01 0.00E+00 5.80E-01 K-40 Sample ID: 295999 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014

<2.10E-02 0.00E+00 2.10E-02 I-131

<1.69E-02 0.00E+00 1.69E-02 Cs-134

<1.85E-02 0.00E+00 1.85E-02 Cs-137

<1.68E-01 0.00E+00 1.68E-01 Be-7 3.89E-01 1.04E-01 7.52E-02 K-40 Sample ID: 296264 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014

<1.77E-02 0.00E+00 1.77E-02 I-131

<8.53E-03 0.00E+00 8.53E-03 Cs-134

<1.27E-02 0.00E+00 1.27E-02 Cs-137

<1.09E-01 0.00E+00 1.09E-01 Be-7 2.38E-01 7.17E-02 5.84E-02 K-40 Sample ID: 296794 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014

<2.66E-02 0.00E+00 2.66E-02 I-131

<1.46E-02 0.00E+00 1.46E-02 Cs-134

<2.00E-02 0.00E+00 2.00E-02 Cs-137

<1.47E-01 0.00E+00 1.47E-01 Be-7 5.08E-01 1.50E-01 2.19E-01 K-40 Sample ID: 297069 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014

<1.78E-02 0.00E+00 1.78E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 41 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 297069 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014

<1.69E-02 0.00E+00 1.69E-02 Cs-134

<1.47E-02 0.00E+00 1.47E-02 Cs-137

<9.24E-02 0.00E+00 9.24E-02 Be-7

<5.11E-01 0.00E+00 5.11E-01 K-40 Sample ID: 297424 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014

<1.81E-02 0.00E+00 1.81E-02 I-131

<1.24E-02 0.00E+00 1.24E-02 Cs-134

<1.82E-02 0.00E+00 1.82E-02 Cs-137

<2.01E-01 0.00E+00 2.01E-01 Be-7 7.16E-01 1.43E-01 2.12E-01 K-40 Sample ID: 297679 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014

<1.85E-02 0.00E+00 1.85E-02 I-131

<3.95E-03 0.00E+00 3.95E-03 Cs-134

<8.69E-03 0.00E+00 8.69E-03 Cs-137

<4.40E-02 0.00E+00 4.40E-02 Be-7 4.46E-01 1.46E-01 3.02E-02 K-40 Sample ID: 350531 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014

<3.82E-02 0.00E+00 3.82E-02 I-131

<1.52E-02 0.00E+00 1.52E-02 Cs-134

<1.63E-02 0.00E+00 1.63E-02 Cs-137

<3.18E-02 0.00E+00 3.18E-02 Be-7

<6.79E-01 0.00E+00 6.79E-01 K-40 Sample ID: 350530 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014

<2.14E-02 0.00E+00 2.14E-02 I-131

<1.53E-02 0.00E+00 1.53E-02 Cs-134

<2.33E-02 0.00E+00 2.33E-02 Cs-137

<1.69E-01 0.00E+00 1.69E-01 Be-7

<5.45E-01 0.00E+00 5.45E-01 K-40 Sample ID: 350965 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014

<2.07E-02 0.00E+00 2.07E-02 I-131

<1.52E-02 0.00E+00 1.52E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.32E-01 0.00E+00 1.32E-01 Be-7 2.68E-01 1.80E-01 8.08E-02 K-40 Sample ID: 351212 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014

<2.04E-02 0.00E+00 2.04E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<2.11E-02 0.00E+00 2.11E-02 Cs-137

<8.13E-02 0.00E+00 8.13E-02 Be-7 3.45E-01 2.83E-01 4.03E-01 K-40 Sample ID: 351518 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014

<1.61E-02 0.00E+00 1.61E-02 I-131

<3.15E-02 0.00E+00 3.15E-02 Cs-134

<2.30E-02 0.00E+00 2.30E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7 6.21E-01 2.76E-01 8.01E-02 K-40 Sample ID: 353380 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014

<1.81E-02 0.00E+00 1.81E-02 I-131

<2.28E-02 0.00E+00 2.28E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.33E-01 0.00E+00 1.33E-01 Be-7

<5.20E-01 0.00E+00 5.21E-01 K-40 Sample ID: 353951 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014

<1.56E-02 0.00E+00 1.56E-02 I-131

<5.00E-03 0.00E+00 5.00E-03 Cs-134

<1.43E-02 0.00E+00 1.43E-02 Cs-137

<1.45E-01 0.00E+00 1.45E-01 Be-7 3.41E-01 2.61E-01 3.64E-01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 42 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 354395 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014

<3.24E-02 0.00E+00 3.24E-02 I-131

<2.63E-02 0.00E+00 2.63E-02 Cs-134

<2.20E-02 0.00E+00 2.20E-02 Cs-137

<1.52E-01 0.00E+00 1.52E-01 Be-7 7.57E-01 3.29E-01 9.33E-02 K-40 Sample ID: 354711 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014

<1.99E-02 0.00E+00 1.99E-02 I-131

<2.27E-02 0.00E+00 2.27E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.56E-01 0.00E+00 1.56E-01 Be-7

<5.60E-01 0.00E+00 5.60E-01 K-40 Sample ID: 355052 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014

<2.40E-02 0.00E+00 2.40E-02 I-131

<1.85E-02 0.00E+00 1.85E-02 Cs-134

<1.64E-02 0.00E+00 1.64E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7 7.16E-01 3.29E-01 3.12E-01 K-40 Sample ID: 355576 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014

<2.37E-02 0.00E+00 2.37E-02 I-131

<1.32E-02 0.00E+00 1.32E-02 Cs-134

<2.50E-02 0.00E+00 2.50E-02 Cs-137

<1.44E-01 0.00E+00 1.44E-01 Be-7

<5.43E-01 0.00E+00 5.43E-01 K-40 Sample ID: 356398 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014

<2.81E-02 0.00E+00 2.81E-02 I-131

<1.85E-02 0.00E+00 1.85E-02 Cs-134

<2.11E-02 0.00E+00 2.11E-02 Cs-137

<1.04E-01 0.00E+00 1.04E-01 Be-7

<6.32E-01 0.00E+00 6.32E-01 K-40 Sample ID: 356981 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014

<2.55E-02 0.00E+00 2.55E-02 I-131

<2.11E-02 0.00E+00 2.11E-02 Cs-134

<1.89E-02 0.00E+00 1.89E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7 2.67E-01 1.79E-01 8.03E-02 K-40 Sample ID: 357987 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014

<1.62E-02 0.00E+00 1.62E-02 I-131

<1.53E-02 0.00E+00 1.53E-02 Cs-134

<2.32E-02 0.00E+00 2.32E-02 Cs-137

<1.19E-01 0.00E+00 1.19E-01 Be-7

<5.63E-01 0.00E+00 5.63E-01 K-40 Sample ID: 358610 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014

<1.47E-02 0.00E+00 1.47E-02 I-131

<1.28E-02 0.00E+00 1.28E-02 Cs-134

<1.44E-02 0.00E+00 1.44E-02 Cs-137

<9.91E-02 0.00E+00 9.91E-02 Be-7

<4.28E-01 0.00E+00 4.28E-01 K-40 Sample ID: 359214 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014

<1.75E-02 0.00E+00 1.75E-02 I-131

<8.30E-03 0.00E+00 8.30E-03 Cs-134

<1.52E-02 0.00E+00 1.52E-02 Cs-137

<8.07E-02 0.00E+00 8.07E-02 Be-7 4.89E-01 2.69E-01 3.12E-01 K-40 Sample ID: 359969 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014

<1.10E-02 0.00E+00 1.10E-02 I-131

<9.02E-03 0.00E+00 9.02E-03 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<8.31E-02 0.00E+00 8.31E-02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 43 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 359969 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014 3.85E-01 1.82E-01 2.03E-01 K-40 Sample ID: 360660 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014

<1.77E-02 0.00E+00 1.77E-02 I-131

<1.28E-02 0.00E+00 1.28E-02 Cs-134

<1.26E-02 0.00E+00 1.26E-02 Cs-137

<1.41E-01 0.00E+00 1.41E-01 Be-7 2.89E-01 1.85E-01 7.84E-02 K-40 Sample ID: 361528 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014

<2.14E-02 0.00E+00 2.14E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.32E-01 0.00E+00 1.32E-01 Be-7

<6.53E-01 0.00E+00 6.53E-01 K-40 Sample ID: 361913 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014

<2.88E-02 0.00E+00 2.88E-02 I-131

<1.63E-02 0.00E+00 1.63E-02 Cs-134

<1.66E-02 0.00E+00 1.66E-02 Cs-137

<1.24E-01 0.00E+00 1.24E-01 Be-7 1.93E-01 1.88E-01 2.70E-01 K-40 Sample ID: 362722 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014

<2.05E-02 0.00E+00 2.05E-02 I-131

<1.76E-02 0.00E+00 1.76E-02 Cs-134

<1.50E-02 0.00E+00 1.50E-02 Cs-137

<9.44E-02 0.00E+00 9.44E-02 Be-7 4.06E-01 2.21E-01 2.14E-01 K-40 Sample ID: 363471 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014

<1.35E-02 0.00E+00 1.35E-02 I-131

<1.09E-02 0.00E+00 1.09E-02 Cs-134

<9.22E-03 0.00E+00 9.22E-03 Cs-137

<9.93E-02 0.00E+00 9.93E-02 Be-7 3.92E-01 1.78E-01 1.88E-01 K-40 Sample ID: 363923 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014

<1.73E-02 0.00E+00 1.73E-02 I-131

<1.54E-02 0.00E+00 1.54E-02 Cs-134

<2.27E-02 0.00E+00 2.27E-02 Cs-137

<1.12E-01 0.00E+00 1.12E-01 Be-7 5.27E-01 2.19E-01 2.02E-01 K-40 Sample ID: 364444 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014

<1.16E-02 0.00E+00 1.16E-02 I-131

<1.07E-02 0.00E+00 1.07E-02 Cs-134

<1.19E-02 0.00E+00 1.19E-02 Cs-137

<9.32E-02 0.00E+00 9.32E-02 Be-7 5.40E-01 2.14E-01 1.71E-01 K-40 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 280736 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/31/2013 - 1/7/2014

<2.16E-02 0.00E+00 2.16E-02 I-131

<2.01E-02 0.00E+00 2.01E-02 Cs-134

<2.07E-02 0.00E+00 2.07E-02 Cs-137

<8.00E-02 0.00E+00 8.00E-02 Be-7 4.32E-01 1.12E-01 7.78E-02 K-40 Sample ID: 280919 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/14/2014

<1.31E-02 0.00E+00 1.31E-02 I-131

<5.70E-03 0.00E+00 5.70E-03 Cs-134

<5.62E-03 0.00E+00 5.62E-03 Cs-137

<5.64E-02 0.00E+00 5.64E-02 Be-7 5.27E-01 4.88E-02 8.85E-02 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 44 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 281299 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/21/2014

<2.46E-02 0.00E+00 2.46E-02 I-131

<1.78E-02 0.00E+00 1.78E-02 Cs-134

<2.35E-02 0.00E+00 2.35E-02 Cs-137

<1.43E-01 0.00E+00 1.43E-01 Be-7 4.69E-01 1.47E-01 3.52E-01 K-40 Sample ID: 281658 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/21/2014 - 1/28/2014

<9.57E-03 0.00E+00 9.57E-03 I-131

<1.11E-02 0.00E+00 1.11E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<9.62E-02 0.00E+00 9.62E-02 Be-7 3.27E-01 7.93E-02 1.41E-01 K-40 Sample ID: 282226 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 2/4/2014

<1.53E-02 0.00E+00 1.53E-02 I-131

<1.56E-02 0.00E+00 1.56E-02 Cs-134

<1.93E-02 0.00E+00 1.93E-02 Cs-137

<1.90E-01 0.00E+00 1.90E-01 Be-7

<4.25E-01 0.00E+00 4.25E-01 K-40 Sample ID: 283088 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/10/2014

<2.18E-02 0.00E+00 2.18E-02 I-131

<1.89E-02 0.00E+00 1.89E-02 Cs-134

<1.62E-02 0.00E+00 1.62E-02 Cs-137

<1.26E-01 0.00E+00 1.26E-01 Be-7 4.94E-01 1.61E-01 2.58E-01 K-40 Sample ID: 283470 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/18/2014

<1.19E-02 0.00E+00 1.19E-02 I-131

<8.79E-03 0.00E+00 8.79E-03 Cs-134

<1.05E-02 0.00E+00 1.05E-02 Cs-137

<6.90E-02 0.00E+00 6.90E-02 Be-7

<3.02E-01 0.00E+00 3.02E-01 K-40 Sample ID: 284657 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/18/2014 - 2/25/2014

<8.83E-03 0.00E+00 8.83E-03 I-131

<1.26E-02 0.00E+00 1.26E-02 Cs-134

<1.42E-02 0.00E+00 1.42E-02 Cs-137

<1.02E-01 0.00E+00 1.02E-01 Be-7

<4.51E-01 0.00E+00 4.51E-01 K-40 Sample ID: 285219 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 3/4/2014

<1.85E-02 0.00E+00 1.85E-02 I-131

<1.60E-02 0.00E+00 1.60E-02 Cs-134

<1.55E-02 0.00E+00 1.55E-02 Cs-137

<9.07E-02 0.00E+00 9.07E-02 Be-7

<6.31E-01 0.00E+00 6.31E-01 K-40 Sample ID: 285826 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/11/2014

<9.75E-03 0.00E+00 9.75E-03 I-131

<9.40E-03 0.00E+00 9.40E-03 Cs-134

<1.55E-02 0.00E+00 1.55E-02 Cs-137

<1.24E-01 0.00E+00 1.24E-01 Be-7 3.58E-01 9.24E-02 6.44E-02 K-40 Sample ID: 286341 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/18/2014

<2.38E-02 0.00E+00 2.38E-02 I-131

<1.72E-02 0.00E+00 1.72E-02 Cs-134

<1.52E-02 0.00E+00 1.52E-02 Cs-137

<1.60E-01 0.00E+00 1.60E-01 Be-7

<6.42E-01 0.00E+00 6.42E-01 K-40 Sample ID: 287189 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014

<1.49E-02 0.00E+00 1.49E-02 I-131

<1.62E-02 0.00E+00 1.62E-02 Cs-134

<1.95E-02 0.00E+00 1.95E-02 Cs-137

<9.03E-02 0.00E+00 9.03E-02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 45 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 287189 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/18/2014 - 3/25/2014 4.01E-01 1.45E-01 3.17E-01 K-40 Sample ID: 288446 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 4/1/2014

<1.45E-02 0.00E+00 1.45E-02 I-131

<1.01E-02 0.00E+00 1.01E-02 Cs-134

<1.88E-02 0.00E+00 1.88E-02 Cs-137

<9.89E-02 0.00E+00 9.89E-02 Be-7 5.52E-01 1.15E-01 1.76E-01 K-40 Sample ID: 289180 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/8/2014

<9.68E-03 0.00E+00 9.68E-03 I-131

<1.06E-02 0.00E+00 1.06E-02 Cs-134

<7.08E-03 0.00E+00 7.08E-03 Cs-137

<9.37E-02 0.00E+00 9.37E-02 Be-7 5.04E-01 7.77E-02 3.24E-02 K-40 Sample ID: 289566 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/15/2014

<2.09E-02 0.00E+00 2.09E-02 I-131

<1.74E-02 0.00E+00 1.74E-02 Cs-134

<1.78E-02 0.00E+00 1.78E-02 Cs-137

<1.22E-01 0.00E+00 1.22E-01 Be-7 4.71E-01 1.39E-01 7.68E-02 K-40 Sample ID: 290048 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/22/2014

<2.09E-02 0.00E+00 2.09E-02 I-131

<2.12E-02 0.00E+00 2.12E-02 Cs-134

<1.83E-02 0.00E+00 1.83E-02 Cs-137

<1.44E-01 0.00E+00 1.44E-01 Be-7

<5.16E-01 0.00E+00 5.16E-01 K-40 Sample ID: 292129 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/29/2014

<2.32E-02 0.00E+00 2.32E-02 I-131

<1.74E-02 0.00E+00 1.74E-02 Cs-134

<1.55E-02 0.00E+00 1.55E-02 Cs-137

<1.72E-01 0.00E+00 1.72E-01 Be-7

<4.91E-01 0.00E+00 4.91E-01 K-40 Sample ID: 292859 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/6/2014

<2.21E-02 0.00E+00 2.21E-02 I-131

<1.89E-02 0.00E+00 1.89E-02 Cs-134

<2.50E-02 0.00E+00 2.50E-02 Cs-137

<1.55E-01 0.00E+00 1.55E-01 Be-7 3.72E-01 1.03E-01 3.33E-01 K-40 Sample ID: 293130 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/13/2014

<1.32E-02 0.00E+00 1.32E-02 I-131

<1.20E-02 0.00E+00 1.20E-02 Cs-134

<1.50E-02 0.00E+00 1.50E-02 Cs-137

<9.16E-02 0.00E+00 9.16E-02 Be-7 7.33E-02 9.64E-02 1.01E-01 K-40 Sample ID: 294772 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/13/2014 - 5/20/2014

<1.41E-02 0.00E+00 1.41E-02 I-131

<7.26E-03 0.00E+00 7.26E-03 Cs-134

<1.67E-02 0.00E+00 1.67E-02 Cs-137 4.52E-02 2.53E-02 9.07E-02 Be-7 3.69E-01 8.94E-02 5.86E-02 K-40 Sample ID: 295298 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/28/2014

<2.54E-02 0.00E+00 2.54E-02 I-131

<1.53E-02 0.00E+00 1.53E-02 Cs-134

<2.02E-02 0.00E+00 2.02E-02 Cs-137

<1.21E-01 0.00E+00 1.21E-01 Be-7 3.99E-01 9.97E-02 1.88E-01 K-40 Sample ID: 295622 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014

<2.97E-02 0.00E+00 2.97E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 46 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 295622 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/3/2014

<1.73E-02 0.00E+00 1.73E-02 Cs-134

<2.57E-02 0.00E+00 2.57E-02 Cs-137

<1.30E-01 0.00E+00 1.30E-01 Be-7

<6.03E-01 0.00E+00 6.03E-01 K-40 Sample ID: 296024 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/10/2014

<1.14E-02 0.00E+00 1.14E-02 I-131

<1.28E-02 0.00E+00 1.28E-02 Cs-134

<1.61E-02 0.00E+00 1.61E-02 Cs-137

<6.07E-02 0.00E+00 6.07E-02 Be-7 3.47E-01 1.13E-01 2.10E-01 K-40 Sample ID: 296289 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/10/2014 - 6/17/2014

<1.98E-02 0.00E+00 1.98E-02 I-131

<1.35E-02 0.00E+00 1.35E-02 Cs-134

<1.80E-02 0.00E+00 1.80E-02 Cs-137

<1.12E-01 0.00E+00 1.12E-01 Be-7 5.53E-01 1.15E-01 6.50E-02 K-40 Sample ID: 296819 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/24/2014

<1.58E-02 0.00E+00 1.58E-02 I-131

<1.61E-02 0.00E+00 1.61E-02 Cs-134

<2.27E-02 0.00E+00 2.27E-02 Cs-137

<1.46E-01 0.00E+00 1.46E-01 Be-7 5.41E-01 1.58E-01 7.69E-02 K-40 Sample ID: 297094 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/1/2014

<1.56E-02 0.00E+00 1.56E-02 I-131

<1.37E-02 0.00E+00 1.37E-02 Cs-134

<9.85E-03 0.00E+00 9.85E-03 Cs-137

<7.65E-02 0.00E+00 7.65E-02 Be-7 4.44E-01 1.20E-01 1.76E-01 K-40 Sample ID: 297449 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/8/2014

<1.97E-02 0.00E+00 1.97E-02 I-131

<1.84E-02 0.00E+00 1.84E-02 Cs-134

<1.28E-02 0.00E+00 1.28E-02 Cs-137

<1.60E-01 0.00E+00 1.60E-01 Be-7

<5.96E-01 0.00E+00 5.96E-01 K-40 Sample ID: 297704 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/8/2014 - 7/15/2014

<3.98E-02 0.00E+00 3.98E-02 I-131

<1.53E-02 0.00E+00 1.53E-02 Cs-134

<1.89E-02 0.00E+00 1.89E-02 Cs-137

<1.14E-01 0.00E+00 1.14E-01 Be-7 3.80E-01 2.35E-01 2.39E-01 K-40 Sample ID: 350533 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/22/2014

<3.61E-02 0.00E+00 3.61E-02 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<1.88E-02 0.00E+00 1.88E-02 Cs-137

<1.55E-01 0.00E+00 1.55E-01 Be-7

<5.55E-01 0.00E+00 5.55E-01 K-40 Sample ID: 350532 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 7/29/2014

<2.31E-02 0.00E+00 2.31E-02 I-131

<1.33E-02 0.00E+00 1.33E-02 Cs-134

<1.66E-02 0.00E+00 1.66E-02 Cs-137

<1.21E-01 0.00E+00 1.21E-01 Be-7

<6.76E-01 0.00E+00 6.76E-01 K-40 Sample ID: 350966 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 8/5/2014

<2.05E-02 0.00E+00 2.05E-02 I-131

<2.53E-02 0.00E+00 2.53E-02 Cs-134

<2.31E-02 0.00E+00 2.31E-02 Cs-137

<1.74E-01 0.00E+00 1.74E-01 Be-7 4.65E-01 2.97E-01 3.73E-01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 47 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 351213 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/12/2014

<2.94E-02 0.00E+00 2.94E-02 I-131

<3.82E-03 0.00E+00 3.82E-03 Cs-134

<1.64E-02 0.00E+00 1.64E-02 Cs-137

<1.45E-01 0.00E+00 1.45E-01 Be-7

<4.20E-01 0.00E+00 4.20E-01 K-40 Sample ID: 351519 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/19/2014

<2.23E-02 0.00E+00 2.23E-02 I-131

<1.94E-02 0.00E+00 1.94E-02 Cs-134

<1.88E-02 0.00E+00 1.88E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7 5.97E-01 3.00E-01 2.97E-01 K-40 Sample ID: 353381 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 8/26/2014

<2.26E-02 0.00E+00 2.26E-02 I-131

<1.56E-02 0.00E+00 1.56E-02 Cs-134

<2.13E-02 0.00E+00 2.13E-02 Cs-137

<8.16E-02 0.00E+00 8.16E-02 Be-7 4.49E-01 2.35E-01 8.11E-02 K-40 Sample ID: 353953 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 9/3/2014

<1.69E-02 0.00E+00 1.69E-02 I-131

<1.35E-02 0.00E+00 1.35E-02 Cs-134

<2.02E-02 0.00E+00 2.02E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7

<5.83E-01 0.00E+00 5.83E-01 K-40 Sample ID: 354396 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/9/2014

<2.35E-02 0.00E+00 2.35E-02 I-131

<3.69E-02 0.00E+00 3.69E-02 Cs-134

<5.56E-03 0.00E+00 5.56E-03 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7 4.31E-01 3.30E-01 4.54E-01 K-40 Sample ID: 354712 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/16/2014

<2.25E-02 0.00E+00 2.25E-02 I-131

<2.75E-02 0.00E+00 2.75E-02 Cs-134

<2.63E-02 0.00E+00 2.63E-02 Cs-137

<1.18E-01 0.00E+00 1.18E-01 Be-7 5.37E-01 2.89E-01 3.02E-01 K-40 Sample ID: 355054 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 9/23/2014

<1.63E-02 0.00E+00 1.63E-02 I-131

<1.71E-02 0.00E+00 1.71E-02 Cs-134

<1.91E-02 0.00E+00 1.91E-02 Cs-137

<1.03E-01 0.00E+00 1.03E-01 Be-7 3.97E-01 2.58E-01 3.01E-01 K-40 Sample ID: 355577 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/30/2014

<2.00E-02 0.00E+00 2.00E-02 I-131

<1.70E-02 0.00E+00 1.70E-02 Cs-134

<2.50E-02 0.00E+00 2.50E-02 Cs-137

<1.83E-01 0.00E+00 1.83E-01 Be-7 5.37E-01 3.07E-01 3.55E-01 K-40 Sample ID: 356427 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/30/2014 - 10/7/2014

<2.20E-02 0.00E+00 2.20E-02 I-131

<1.84E-02 0.00E+00 1.84E-02 Cs-134

<1.29E-02 0.00E+00 1.29E-02 Cs-137

<1.34E-01 0.00E+00 1.34E-01 Be-7 5.50E-01 2.83E-01 2.66E-01 K-40 Sample ID: 356982 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014

<2.42E-02 0.00E+00 2.42E-02 I-131

<1.04E-02 0.00E+00 1.04E-02 Cs-134

<1.63E-02 0.00E+00 1.63E-02 Cs-137

<1.45E-01 0.00E+00 1.45E-01 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 48 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 356982 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/14/2014 5.93E-01 2.70E-01 8.03E-02 K-40 Sample ID: 357988 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 10/21/2014

<2.37E-02 0.00E+00 2.37E-02 I-131

<1.70E-02 0.00E+00 1.70E-02 Cs-134

<1.30E-02 0.00E+00 1.30E-02 Cs-137

<1.65E-01 0.00E+00 1.65E-01 Be-7 4.76E-01 2.41E-01 8.06E-02 K-40 Sample ID: 358611 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/28/2014

<4.07E-03 0.00E+00 4.07E-03 I-131

<1.31E-02 0.00E+00 1.31E-02 Cs-134

<2.12E-02 0.00E+00 2.12E-02 Cs-137

<1.45E-01 0.00E+00 1.45E-01 Be-7 5.36E-01 2.57E-01 8.07E-02 K-40 Sample ID: 359215 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/28/2014 - 11/4/2014

<1.04E-02 0.00E+00 1.04E-02 I-131

<9.01E-03 0.00E+00 9.01E-03 Cs-134

<8.51E-03 0.00E+00 8.51E-03 Cs-137

<7.81E-02 0.00E+00 7.81E-02 Be-7 6.77E-01 2.09E-01 1.70E-01 K-40 Sample ID: 359970 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/11/2014

<1.51E-02 0.00E+00 1.51E-02 I-131

<6.36E-03 0.00E+00 6.36E-03 Cs-134

<1.48E-02 0.00E+00 1.48E-02 Cs-137

<9.17E-02 0.00E+00 9.17E-02 Be-7 4.76E-01 2.01E-01 2.16E-01 K-40 Sample ID: 360661 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 11/18/2014

<1.99E-02 0.00E+00 1.99E-02 I-131

<1.05E-02 0.00E+00 1.05E-02 Cs-134

<1.65E-02 0.00E+00 1.65E-02 Cs-137

<8.17E-02 0.00E+00 8.17E-02 Be-7

<6.03E-01 0.00E+00 6.03E-01 K-40 Sample ID: 361529 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/25/2014

<2.00E-02 0.00E+00 2.00E-02 I-131

<1.99E-02 0.00E+00 1.99E-02 Cs-134

<1.90E-02 0.00E+00 1.90E-02 Cs-137

<1.43E-01 0.00E+00 1.43E-01 Be-7

<5.81E-01 0.00E+00 5.81E-01 K-40 Sample ID: 361914 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/25/2014 - 12/2/2014

<2.85E-02 0.00E+00 2.85E-02 I-131

<1.33E-02 0.00E+00 1.33E-02 Cs-134

<1.85E-02 0.00E+00 1.85E-02 Cs-137

<1.35E-01 0.00E+00 1.35E-01 Be-7 5.29E-01 2.97E-01 3.56E-01 K-40 Sample ID: 362723 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/9/2014

<1.44E-02 0.00E+00 1.44E-02 I-131

<1.26E-02 0.00E+00 1.26E-02 Cs-134

<1.50E-02 0.00E+00 1.50E-02 Cs-137

<9.39E-02 0.00E+00 9.39E-02 Be-7 3.73E-01 1.65E-01 1.55E-01 K-40 Sample ID: 363472 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/9/2014 - 12/16/2014

<8.36E-03 0.00E+00 8.36E-03 I-131

<9.75E-03 0.00E+00 9.75E-03 Cs-134

<1.43E-02 0.00E+00 1.43E-02 Cs-137

<8.72E-02 0.00E+00 8.72E-02 Be-7 5.58E-01 1.85E-01 3.88E-02 K-40 Sample ID: 363924 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014

<1.51E-02 0.00E+00 1.51E-02 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 49 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: AIR RADIOIODINE Concentration (Activity): pCi/m3 Sample Point 261 [ INDICATOR - N @ 0.72 miles ]

Sample ID: 363924 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/23/2014

<1.47E-02 0.00E+00 1.47E-02 Cs-134

<1.44E-02 0.00E+00 1.44E-02 Cs-137

<8.49E-02 0.00E+00 8.49E-02 Be-7 4.42E-01 1.80E-01 4.79E-02 K-40 Sample ID: 364445 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/23/2014 - 12/30/2014

<1.44E-02 0.00E+00 1.44E-02 I-131

<1.34E-02 0.00E+00 1.34E-02 Cs-134

<1.92E-02 0.00E+00 1.92E-02 Cs-137

<7.65E-02 0.00E+00 7.65E-02 Be-7 5.13E-01 2.29E-01 2.43E-01 K-40 Media Type: CROPS Concentration (Activity): pCi/kg Sample Point 260 [ INDICATOR - SSE @ 2 miles ]

Sample ID: 279908 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/7/2014 MIXEDCROPS

<1.52E+01 0.00E+00 1.52E+01 I-131

<1.28E+01 0.00E+00 1.28E+01 Cs-134

<1.56E+01 0.00E+00 1.56E+01 Cs-137 6.37E+02 1.02E+02 1.21E+02 Be-7 4.15E+03 2.27E+02 1.43E+02 K-40 Sample ID: 281474 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/4/2014 MIXEDCROPS

<2.58E+01 0.00E+00 2.58E+01 I-131

<3.40E+01 0.00E+00 3.40E+01 Cs-134

<4.29E+01 0.00E+00 4.29E+01 Cs-137 1.48E+02 1.57E+02 4.01E+02 Be-7 5.81E+03 4.76E+02 3.62E+02 K-40 Sample ID: 284589 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014 MIXEDCROPS

<1.98E+01 0.00E+00 1.98E+01 I-131

<2.12E+01 0.00E+00 2.12E+01 Cs-134

<2.65E+01 0.00E+00 2.65E+01 Cs-137

<2.17E+02 0.00E+00 2.17E+02 Be-7 3.58E+03 2.92E+02 2.22E+02 K-40 Sample ID: 287393 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/1/2014 MIXEDCROPS

<2.48E+01 0.00E+00 2.48E+01 I-131

<2.34E+01 0.00E+00 2.34E+01 Cs-134

<2.99E+01 0.00E+00 2.99E+01 Cs-137

<2.37E+02 0.00E+00 2.37E+02 Be-7 5.30E+03 3.38E+02 3.26E+02 K-40 Sample ID: 290923 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/6/2014 MIXEDCROPS

<3.28E+01 0.00E+00 3.28E+01 I-131

<4.13E+01 0.00E+00 4.13E+01 Cs-134

<4.63E+01 0.00E+00 4.63E+01 Cs-137

<3.17E+02 0.00E+00 3.17E+02 Be-7 4.45E+03 4.30E+02 4.06E+02 K-40 Sample ID: 295151 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/3/2014 MIXEDCROPS

<1.22E+01 0.00E+00 1.22E+01 I-131

<1.22E+01 0.00E+00 1.22E+01 Cs-134

<1.77E+01 0.00E+00 1.77E+01 Cs-137

<1.30E+02 0.00E+00 1.30E+02 Be-7 2.59E+03 2.08E+02 4.50E+01 K-40 Sample ID: 296837 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/1/2014 MIXEDCROPS

<9.01E+00 0.00E+00 9.01E+00 I-131

<1.21E+01 0.00E+00 1.21E+01 Cs-134

<2.01E+01 0.00E+00 2.01E+01 Cs-137

<9.28E+01 0.00E+00 9.28E+01 Be-7 2.08E+03 1.82E+02 2.04E+02 K-40 Sample ID: 298373 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDCROPS

<1.41E+01 0.00E+00 1.41E+01 I-131

<1.45E+01 0.00E+00 1.45E+01 Cs-134 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 50 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: CROPS Concentration (Activity): pCi/kg Sample Point 260 [ INDICATOR - SSE @ 2 miles ]

Sample ID: 298373 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDCROPS

<1.61E+01 0.00E+00 1.61E+01 Cs-137

<1.21E+02 0.00E+00 1.21E+02 Be-7 1.76E+03 3.86E+02 3.05E+02 K-40 Sample ID: 354402 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDCROPS

<1.63E+01 0.00E+00 1.63E+01 I-131

<2.21E+01 0.00E+00 2.21E+01 Cs-134

<1.68E+01 0.00E+00 1.68E+01 Cs-137

<1.16E+02 0.00E+00 1.16E+02 Be-7 2.72E+03 5.13E+02 2.20E+02 K-40 Sample ID: 356988 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDCROPS

<8.26E+00 0.00E+00 8.26E+00 I-131

<1.00E+01 0.00E+00 1.00E+01 Cs-134

<1.36E+01 0.00E+00 1.36E+01 Cs-137

<9.27E+01 0.00E+00 9.27E+01 Be-7 2.77E+03 3.78E+02 1.50E+02 K-40 Sample ID: 359976 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014 MIXEDCROPS

<2.21E+01 0.00E+00 2.21E+01 I-131

<3.92E+01 0.00E+00 3.92E+01 Cs-134

<1.94E+01 0.00E+00 1.94E+01 Cs-137

<2.34E+02 0.00E+00 2.34E+02 Be-7 3.53E+03 6.94E+02 4.13E+02 K-40 Sample ID: 362729 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/2/2014 MIXEDCROPS

<1.65E+01 0.00E+00 1.65E+01 I-131

<1.80E+01 0.00E+00 1.80E+01 Cs-134

<1.94E+01 0.00E+00 1.94E+01 Cs-137 2.92E+02 1.15E+02 1.42E+02 Be-7 3.67E+03 5.43E+02 2.56E+02 K-40 Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 214 [ INDICATOR - SSE @ 7.3 miles ]

Sample ID: 280927 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 1/7/2014 1.67E+00 4.09E-01 1.26E+00 Beta

<3.22E+00 0.00E+00 3.22E+00 Mn-54

<4.54E+00 0.00E+00 4.54E+00 Co-58

<9.71E+00 0.00E+00 9.71E+00 Fe-59

<4.44E+00 0.00E+00 4.44E+00 Co-60

<7.76E+00 0.00E+00 7.76E+00 Zn-65

<7.78E+00 0.00E+00 7.78E+00 Zr-95

<5.03E+00 0.00E+00 5.03E+00 Nb-95

<1.20E+01 0.00E+00 1.20E+01 I-131

<3.40E+00 0.00E+00 3.40E+00 Cs-134

<3.37E+00 0.00E+00 3.37E+00 Cs-137

<8.24E+00 0.00E+00 8.24E+00 BaLa-140

<3.70E+01 0.00E+00 3.70E+01 Be-7 1.16E+02 1.69E+01 2.99E+01 K-40 Sample ID: 283104 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 2/4/2014 2.81E+00 3.87E-01 1.08E+00 Beta

<3.25E+00 0.00E+00 3.25E+00 Mn-54

<3.77E+00 0.00E+00 3.77E+00 Co-58

<9.40E+00 0.00E+00 9.40E+00 Fe-59

<4.61E+00 0.00E+00 4.61E+00 Co-60

<7.81E+00 0.00E+00 7.81E+00 Zn-65

<6.46E+00 0.00E+00 6.46E+00 Zr-95

<4.09E+00 0.00E+00 4.09E+00 Nb-95

<1.14E+01 0.00E+00 1.14E+01 I-131

<3.13E+00 0.00E+00 3.13E+00 Cs-134

<4.28E+00 0.00E+00 4.28E+00 Cs-137

<9.32E+00 0.00E+00 9.32E+00 BaLa-140

<3.62E+01 0.00E+00 3.62E+01 Be-7 4.78E+01 2.25E+01 3.98E+01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 51 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 214 [ INDICATOR - SSE @ 7.3 miles ]

Sample ID: 284775 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 3/4/2014 4.97E+02 6.57E+01 1.91E+02 H3DW Sample ID: 285952 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 3/4/2014 2.06E+00 3.87E-01 1.15E+00 Beta

<3.24E+00 0.00E+00 3.24E+00 Mn-54

<3.51E+00 0.00E+00 3.51E+00 Co-58

<8.08E+00 0.00E+00 8.08E+00 Fe-59

<4.21E+00 0.00E+00 4.21E+00 Co-60

<8.11E+00 0.00E+00 8.11E+00 Zn-65

<6.55E+00 0.00E+00 6.55E+00 Zr-95

<4.97E+00 0.00E+00 4.97E+00 Nb-95

<1.25E+01 0.00E+00 1.25E+01 I-131

<2.73E+00 0.00E+00 2.73E+00 Cs-134

<3.21E+00 0.00E+00 3.21E+00 Cs-137

<9.64E+00 0.00E+00 9.64E+00 BaLa-140

<3.17E+01 0.00E+00 3.17E+01 Be-7 4.60E+01 1.57E+01 3.33E+01 K-40 Sample ID: 289218 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 4/1/2014 1.94E+00 4.28E-01 1.34E+00 Beta

<3.87E+00 0.00E+00 3.87E+00 Mn-54

<3.84E+00 0.00E+00 3.84E+00 Co-58

<7.77E+00 0.00E+00 7.77E+00 Fe-59

<5.17E+00 0.00E+00 5.17E+00 Co-60

<7.32E+00 0.00E+00 7.32E+00 Zn-65

<6.68E+00 0.00E+00 6.68E+00 Zr-95

<4.64E+00 0.00E+00 4.64E+00 Nb-95

<1.40E+01 0.00E+00 1.40E+01 I-131

<3.87E+00 0.00E+00 3.87E+00 Cs-134

<4.41E+00 0.00E+00 4.41E+00 Cs-137

<7.88E+00 0.00E+00 7.88E+00 BaLa-140

<3.58E+01 0.00E+00 3.58E+01 Be-7 1.92E+02 2.87E+01 3.70E+01 K-40 Sample ID: 292880 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/29/2014 9.50E-01 4.51E-01 1.47E+00 Beta

<3.83E+00 0.00E+00 3.83E+00 Mn-54

<4.07E+00 0.00E+00 4.07E+00 Co-58

<9.81E+00 0.00E+00 9.81E+00 Fe-59

<4.14E+00 0.00E+00 4.14E+00 Co-60

<7.58E+00 0.00E+00 7.58E+00 Zn-65

<6.69E+00 0.00E+00 6.69E+00 Zr-95

<4.80E+00 0.00E+00 4.80E+00 Nb-95

<1.10E+01 0.00E+00 1.10E+01 I-131

<2.95E+00 0.00E+00 2.95E+00 Cs-134

<3.74E+00 0.00E+00 3.74E+00 Cs-137

<1.07E+01 0.00E+00 1.07E+01 BaLa-140

<3.58E+01 0.00E+00 3.58E+01 Be-7 5.38E+01 1.78E+01 3.18E+01 K-40 Sample ID: 295308 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 5/28/2014 1.01E+03 7.27E+01 1.88E+02 H3DW Sample ID: 295633 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/28/2014 2.43E+00 4.44E-01 1.36E+00 Beta

<3.29E+00 0.00E+00 3.29E+00 Mn-54

<3.53E+00 0.00E+00 3.53E+00 Co-58

<5.95E+00 0.00E+00 5.95E+00 Fe-59

<3.44E+00 0.00E+00 3.44E+00 Co-60

<5.97E+00 0.00E+00 5.97E+00 Zn-65

<4.70E+00 0.00E+00 4.70E+00 Zr-95

<3.93E+00 0.00E+00 3.93E+00 Nb-95

<1.44E+01 0.00E+00 1.44E+01 I-131

<2.52E+00 0.00E+00 2.52E+00 Cs-134

<2.83E+00 0.00E+00 2.83E+00 Cs-137

<1.24E+01 0.00E+00 1.24E+01 BaLa-140 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 52 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 214 [ INDICATOR - SSE @ 7.3 miles ]

Sample ID: 295633 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/28/2014

<2.86E+01 0.00E+00 2.86E+01 Be-7 8.30E+01 1.16E+01 2.06E+01 K-40 Sample ID: 297114 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/24/2014 9.60E-01 8.30E-01 1.37E+00 Beta

<3.70E+00 0.00E+00 3.70E+00 Mn-54

<3.81E+00 0.00E+00 3.81E+00 Co-58

<6.67E+00 0.00E+00 6.67E+00 Fe-59

<4.43E+00 0.00E+00 4.43E+00 Co-60

<6.86E+00 0.00E+00 6.86E+00 Zn-65

<4.41E+00 0.00E+00 4.41E+00 Zr-95

<4.05E+00 0.00E+00 4.05E+00 Nb-95

<1.40E+01 0.00E+00 1.40E+01 I-131

<3.30E+00 0.00E+00 3.30E+00 Cs-134

<3.95E+00 0.00E+00 3.95E+00 Cs-137

<7.26E+00 0.00E+00 7.26E+00 BaLa-140

<3.56E+01 0.00E+00 3.56E+01 Be-7 1.74E+02 1.99E+01 2.92E+01 K-40 Sample ID: 350534 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/22/2014 1.84E+00 9.07E-01 1.44E+00 Beta

<3.30E+00 0.00E+00 3.30E+00 Mn-54

<3.14E+00 0.00E+00 3.14E+00 Co-58

<5.90E+00 0.00E+00 5.90E+00 Fe-59

<3.32E+00 0.00E+00 3.32E+00 Co-60

<4.59E+00 0.00E+00 4.59E+00 Zn-65

<5.58E+00 0.00E+00 5.58E+00 Zr-95

<3.94E+00 0.00E+00 3.94E+00 Nb-95

<1.09E+01 0.00E+00 1.09E+01 I-131

<1.99E+00 0.00E+00 1.99E+00 Cs-134

<2.78E+00 0.00E+00 2.78E+00 Cs-137

<8.66E+00 0.00E+00 8.66E+00 BaLa-140

<2.38E+01 0.00E+00 2.38E+01 Be-7 4.88E+01 2.80E+01 3.88E+01 K-40 Sample ID: 351520 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 8/19/2014 1.77E+00 8.47E-01 1.35E+00 Beta

<3.33E+00 0.00E+00 3.33E+00 Mn-54

<2.97E+00 0.00E+00 2.97E+00 Co-58

<8.03E+00 0.00E+00 8.03E+00 Fe-59

<2.70E+00 0.00E+00 2.70E+00 Co-60

<6.67E+00 0.00E+00 6.67E+00 Zn-65

<5.85E+00 0.00E+00 5.85E+00 Zr-95

<3.88E+00 0.00E+00 3.88E+00 Nb-95

<1.08E+01 0.00E+00 1.08E+01 I-131

<3.64E+00 0.00E+00 3.64E+00 Cs-134

<3.21E+00 0.00E+00 3.21E+00 Cs-137

<7.17E+00 0.00E+00 7.17E+00 BaLa-140

<3.02E+01 0.00E+00 3.02E+01 Be-7 1.64E+02 4.24E+01 4.38E+01 K-40 Sample ID: 354215 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 8/19/2014 1.13E+03 1.45E+02 1.91E+02 H3DW Sample ID: 354583 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014 2.42E+00 8.17E-01 1.23E+00 Beta

<2.43E+00 0.00E+00 2.43E+00 Mn-54

<2.79E+00 0.00E+00 2.79E+00 Co-58

<6.45E+00 0.00E+00 6.45E+00 Fe-59

<2.25E+00 0.00E+00 2.25E+00 Co-60

<5.27E+00 0.00E+00 5.27E+00 Zn-65

<5.69E+00 0.00E+00 5.69E+00 Zr-95

<3.92E+00 0.00E+00 3.92E+00 Nb-95

<1.20E+01 0.00E+00 1.20E+01 I-131

<2.87E+00 0.00E+00 2.87E+00 Cs-134

<2.24E+00 0.00E+00 2.24E+00 Cs-137 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 53 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 214 [ INDICATOR - SSE @ 7.3 miles ]

Sample ID: 354583 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014

<7.32E+00 0.00E+00 7.32E+00 BaLa-140

<2.45E+01 0.00E+00 2.45E+01 Be-7 1.46E+02 3.50E+01 4.02E+01 K-40 Sample ID: 356854 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 10/14/2014 2.60E+00 8.40E-01 1.26E+00 Beta

<2.32E+00 0.00E+00 2.32E+00 Mn-54

<2.51E+00 0.00E+00 2.51E+00 Co-58

<5.89E+00 0.00E+00 5.89E+00 Fe-59

<2.04E+00 0.00E+00 2.04E+00 Co-60

<3.26E+00 0.00E+00 3.26E+00 Zn-65

<4.65E+00 0.00E+00 4.65E+00 Zr-95

<3.31E+00 0.00E+00 3.31E+00 Nb-95

<1.20E+01 0.00E+00 1.20E+01 I-131

<2.42E+00 0.00E+00 2.42E+00 Cs-134

<2.45E+00 0.00E+00 2.45E+00 Cs-137

<6.71E+00 0.00E+00 6.71E+00 BaLa-140

<2.16E+01 0.00E+00 2.16E+01 Be-7 4.47E+01 2.37E+01 3.36E+01 K-40 Sample ID: 359745 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 11/11/2014 1.37E+00 8.03E-01 1.29E+00 Beta

<1.50E+00 0.00E+00 1.50E+00 Mn-54

<1.85E+00 0.00E+00 1.85E+00 Co-58

<4.11E+00 0.00E+00 4.11E+00 Fe-59

<1.44E+00 0.00E+00 1.44E+00 Co-60

<3.34E+00 0.00E+00 3.34E+00 Zn-65

<3.42E+00 0.00E+00 3.42E+00 Zr-95

<2.56E+00 0.00E+00 2.56E+00 Nb-95

<1.20E+01 0.00E+00 1.20E+01 I-131

<1.97E+00 0.00E+00 1.97E+00 Cs-134

<1.56E+00 0.00E+00 1.56E+00 Cs-137

<4.79E+00 0.00E+00 4.79E+00 BaLa-140

<1.59E+01 0.00E+00 1.59E+01 Be-7 4.72E+01 1.66E+01 2.10E+01 K-40 Sample ID: 362142 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 12/9/2014 2.61E+00 8.14E-01 1.21E+00 Beta

<1.17E+00 0.00E+00 1.17E+00 Mn-54

<1.31E+00 0.00E+00 1.31E+00 Co-58

<2.72E+00 0.00E+00 2.72E+00 Fe-59

<1.02E+00 0.00E+00 1.02E+00 Co-60

<2.09E+00 0.00E+00 2.09E+00 Zn-65

<2.25E+00 0.00E+00 2.25E+00 Zr-95

<1.69E+00 0.00E+00 1.69E+00 Nb-95

<1.10E+01 0.00E+00 1.10E+01 I-131

<1.11E+00 0.00E+00 1.11E+00 Cs-134

<1.00E+00 0.00E+00 1.00E+00 Cs-137

<4.74E+00 0.00E+00 4.74E+00 BaLa-140

<1.07E+01 0.00E+00 1.07E+01 Be-7 4.21E+01 1.24E+01 1.58E+01 K-40 Sample ID: 364859 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 12/9/2014 6.47E+02 1.32E+02 1.92E+02 H3DW Sample Point 218 [ CONTROL - NNE @ 13.5 miles ]

Sample ID: 280922 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 1/7/2014 1.18E+00 3.96E-01 1.26E+00 Beta

<3.63E+00 0.00E+00 3.63E+00 Mn-54

<3.96E+00 0.00E+00 3.96E+00 Co-58

<8.75E+00 0.00E+00 8.75E+00 Fe-59

<3.46E+00 0.00E+00 3.46E+00 Co-60

<6.79E+00 0.00E+00 6.79E+00 Zn-65

<6.90E+00 0.00E+00 6.90E+00 Zr-95

<4.82E+00 0.00E+00 4.82E+00 Nb-95

<1.29E+01 0.00E+00 1.29E+01 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 54 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 218 [ CONTROL - NNE @ 13.5 miles ]

Sample ID: 280922 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 1/7/2014

<3.30E+00 0.00E+00 3.30E+00 Cs-134

<2.98E+00 0.00E+00 2.98E+00 Cs-137

<7.87E+00 0.00E+00 7.87E+00 BaLa-140

<3.35E+01 0.00E+00 3.35E+01 Be-7 2.41E+02 2.24E+01 3.13E+01 K-40 Sample ID: 283099 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 2/4/2014 2.68E+00 3.84E-01 1.08E+00 Beta

<4.75E+00 0.00E+00 4.75E+00 Mn-54

<3.41E+00 0.00E+00 3.41E+00 Co-58

<1.42E+01 0.00E+00 1.42E+01 Fe-59

<5.39E+00 0.00E+00 5.39E+00 Co-60

<9.18E+00 0.00E+00 9.18E+00 Zn-65

<7.69E+00 0.00E+00 7.69E+00 Zr-95

<6.56E+00 0.00E+00 6.56E+00 Nb-95

<1.38E+01 0.00E+00 1.38E+01 I-131

<4.46E+00 0.00E+00 4.46E+00 Cs-134

<4.93E+00 0.00E+00 4.93E+00 Cs-137

<1.35E+01 0.00E+00 1.35E+01 BaLa-140

<4.76E+01 0.00E+00 4.76E+01 Be-7 3.22E+01 1.64E+01 5.25E+01 K-40 Sample ID: 284774 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 3/4/2014 3.80E+02 6.37E+01 1.90E+02 H3DW Sample ID: 285947 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 3/4/2014 2.18E+00 3.90E-01 1.15E+00 Beta

<3.34E+00 0.00E+00 3.34E+00 Mn-54

<3.58E+00 0.00E+00 3.58E+00 Co-58

<7.19E+00 0.00E+00 7.19E+00 Fe-59

<3.41E+00 0.00E+00 3.41E+00 Co-60

<6.87E+00 0.00E+00 6.87E+00 Zn-65

<5.76E+00 0.00E+00 5.76E+00 Zr-95

<3.97E+00 0.00E+00 3.97E+00 Nb-95

<1.21E+01 0.00E+00 1.21E+01 I-131

<2.62E+00 0.00E+00 2.62E+00 Cs-134

<3.34E+00 0.00E+00 3.34E+00 Cs-137

<8.30E+00 0.00E+00 8.30E+00 BaLa-140

<2.92E+01 0.00E+00 2.92E+01 Be-7 7.38E+01 2.02E+01 2.67E+01 K-40 Sample ID: 289190 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 4/1/2014 2.51E+00 4.40E-01 1.33E+00 Beta

<3.42E+00 0.00E+00 3.42E+00 Mn-54

<3.14E+00 0.00E+00 3.14E+00 Co-58

<8.46E+00 0.00E+00 8.46E+00 Fe-59

<5.63E+00 0.00E+00 5.63E+00 Co-60

<7.56E+00 0.00E+00 7.56E+00 Zn-65

<6.95E+00 0.00E+00 6.95E+00 Zr-95

<4.36E+00 0.00E+00 4.36E+00 Nb-95

<1.14E+01 0.00E+00 1.14E+01 I-131

<3.70E+00 0.00E+00 3.70E+00 Cs-134

<4.09E+00 0.00E+00 4.09E+00 Cs-137

<1.04E+01 0.00E+00 1.04E+01 BaLa-140

<3.02E+01 0.00E+00 3.02E+01 Be-7 5.43E+01 2.30E+01 4.56E+01 K-40 Sample ID: 292875 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/29/2014 2.28E+00 4.77E-01 1.46E+00 Beta

<5.22E+00 0.00E+00 5.22E+00 Mn-54

<4.48E+00 0.00E+00 4.48E+00 Co-58

<1.00E+01 0.00E+00 1.00E+01 Fe-59

<5.49E+00 0.00E+00 5.49E+00 Co-60

<1.06E+01 0.00E+00 1.06E+01 Zn-65

<8.42E+00 0.00E+00 8.42E+00 Zr-95

<5.52E+00 0.00E+00 5.52E+00 Nb-95 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 55 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 218 [ CONTROL - NNE @ 13.5 miles ]

Sample ID: 292875 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/29/2014

<1.45E+01 0.00E+00 1.45E+01 I-131

<4.38E+00 0.00E+00 4.38E+00 Cs-134

<4.88E+00 0.00E+00 4.88E+00 Cs-137

<1.04E+01 0.00E+00 1.04E+01 BaLa-140

<4.20E+01 0.00E+00 4.20E+01 Be-7 2.63E+02 3.13E+01 4.92E+01 K-40 Sample ID: 295307 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 5/28/2014 4.31E+02 6.37E+01 1.86E+02 H3DW Sample ID: 295627 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/28/2014 1.89E+00 4.29E-01 1.35E+00 Beta

<2.78E+00 0.00E+00 2.78E+00 Mn-54

<2.84E+00 0.00E+00 2.84E+00 Co-58

<6.07E+00 0.00E+00 6.07E+00 Fe-59

<2.90E+00 0.00E+00 2.90E+00 Co-60

<5.52E+00 0.00E+00 5.52E+00 Zn-65

<5.61E+00 0.00E+00 5.61E+00 Zr-95

<3.58E+00 0.00E+00 3.58E+00 Nb-95

<1.45E+01 0.00E+00 1.45E+01 I-131

<2.43E+00 0.00E+00 2.43E+00 Cs-134

<3.28E+00 0.00E+00 3.28E+00 Cs-137

<7.51E+00 0.00E+00 7.51E+00 BaLa-140

<2.91E+01 0.00E+00 2.91E+01 Be-7 1.34E+02 1.82E+01 2.52E+01 K-40 Sample ID: 297109 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/24/2014 9.14E-01 8.23E-01 1.36E+00 Beta

<4.44E+00 0.00E+00 4.44E+00 Mn-54

<5.41E+00 0.00E+00 5.41E+00 Co-58

<1.18E+01 0.00E+00 1.18E+01 Fe-59

<4.68E+00 0.00E+00 4.68E+00 Co-60

<1.11E+01 0.00E+00 1.11E+01 Zn-65

<1.02E+01 0.00E+00 1.02E+01 Zr-95

<5.90E+00 0.00E+00 5.90E+00 Nb-95

<1.45E+01 0.00E+00 1.45E+01 I-131

<4.05E+00 0.00E+00 4.05E+00 Cs-134

<4.82E+00 0.00E+00 4.82E+00 Cs-137

<8.96E+00 0.00E+00 8.96E+00 BaLa-140

<4.41E+01 0.00E+00 4.41E+01 Be-7

<9.09E+01 0.00E+00 9.09E+01 K-40 Sample ID: 350535 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/22/2014 1.41E+00 8.76E-01 1.42E+00 Beta

<3.03E+00 0.00E+00 3.03E+00 Mn-54

<2.86E+00 0.00E+00 2.86E+00 Co-58

<7.94E+00 0.00E+00 7.94E+00 Fe-59

<1.82E+00 0.00E+00 1.82E+00 Co-60

<7.27E+00 0.00E+00 7.27E+00 Zn-65

<6.22E+00 0.00E+00 6.22E+00 Zr-95

<4.50E+00 0.00E+00 4.50E+00 Nb-95

<1.19E+01 0.00E+00 1.19E+01 I-131

<1.96E+00 0.00E+00 1.96E+00 Cs-134

<2.84E+00 0.00E+00 2.84E+00 Cs-137

<8.84E+00 0.00E+00 8.84E+00 BaLa-140

<2.53E+01 0.00E+00 2.53E+01 Be-7 5.25E+01 2.30E+01 2.86E+01 K-40 Sample ID: 351521 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 8/19/2014 2.08E+00 8.54E-01 1.34E+00 Beta

<2.89E+00 0.00E+00 2.89E+00 Mn-54

<2.75E+00 0.00E+00 2.75E+00 Co-58

<7.90E+00 0.00E+00 7.90E+00 Fe-59

<2.92E+00 0.00E+00 2.92E+00 Co-60

<5.37E+00 0.00E+00 5.37E+00 Zn-65

<6.54E+00 0.00E+00 6.54E+00 Zr-95 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 56 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 218 [ CONTROL - NNE @ 13.5 miles ]

Sample ID: 351521 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 8/19/2014

<3.85E+00 0.00E+00 3.85E+00 Nb-95

<1.10E+01 0.00E+00 1.10E+01 I-131

<3.46E+00 0.00E+00 3.46E+00 Cs-134

<3.42E+00 0.00E+00 3.42E+00 Cs-137

<8.47E+00 0.00E+00 8.47E+00 BaLa-140

<2.58E+01 0.00E+00 2.58E+01 Be-7 4.73E+01 3.22E+01 4.65E+01 K-40 Sample ID: 354216 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 8/19/2014 4.19E+02 1.23E+02 1.89E+02 H3DW Sample ID: 354584 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014 8.82E-01 7.43E-01 1.22E+00 Beta

<1.69E+00 0.00E+00 1.69E+00 Mn-54

<2.43E+00 0.00E+00 2.43E+00 Co-58

<5.93E+00 0.00E+00 5.93E+00 Fe-59

<2.56E+00 0.00E+00 2.56E+00 Co-60

<4.75E+00 0.00E+00 4.75E+00 Zn-65

<4.13E+00 0.00E+00 4.13E+00 Zr-95

<3.56E+00 0.00E+00 3.56E+00 Nb-95

<1.11E+01 0.00E+00 1.11E+01 I-131

<2.84E+00 0.00E+00 2.84E+00 Cs-134

<2.28E+00 0.00E+00 2.28E+00 Cs-137

<6.30E+00 0.00E+00 6.30E+00 BaLa-140

<1.83E+01 0.00E+00 1.83E+01 Be-7 3.31E+01 2.44E+01 3.75E+01 K-40 Sample ID: 356855 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 10/14/2014 1.53E+00 8.45E-01 1.38E+00 Beta

<2.07E+00 0.00E+00 2.07E+00 Mn-54

<2.02E+00 0.00E+00 2.02E+00 Co-58

<4.85E+00 0.00E+00 4.85E+00 Fe-59

<1.99E+00 0.00E+00 1.99E+00 Co-60

<3.57E+00 0.00E+00 3.57E+00 Zn-65

<3.74E+00 0.00E+00 3.74E+00 Zr-95

<2.92E+00 0.00E+00 2.92E+00 Nb-95

<1.16E+01 0.00E+00 1.16E+01 I-131

<2.13E+00 0.00E+00 2.13E+00 Cs-134

<1.78E+00 0.00E+00 1.78E+00 Cs-137

<5.41E+00 0.00E+00 5.41E+00 BaLa-140

<1.92E+01 0.00E+00 1.92E+01 Be-7 1.83E+02 3.42E+01 3.99E+01 K-40 Sample ID: 359746 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 11/11/2014 1.97E+00 8.27E-01 1.29E+00 Beta

<1.94E+00 0.00E+00 1.94E+00 Mn-54

<1.94E+00 0.00E+00 1.94E+00 Co-58

<4.52E+00 0.00E+00 4.52E+00 Fe-59

<2.01E+00 0.00E+00 2.01E+00 Co-60

<3.87E+00 0.00E+00 3.87E+00 Zn-65

<3.92E+00 0.00E+00 3.92E+00 Zr-95

<2.85E+00 0.00E+00 2.85E+00 Nb-95

<1.19E+01 0.00E+00 1.19E+01 I-131

<2.13E+00 0.00E+00 2.13E+00 Cs-134

<1.80E+00 0.00E+00 1.80E+00 Cs-137

<4.92E+00 0.00E+00 4.92E+00 BaLa-140

<1.73E+01 0.00E+00 1.73E+01 Be-7 1.23E+02 2.43E+01 2.62E+01 K-40 Sample ID: 362143 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 12/9/2014 1.77E+00 7.74E-01 1.21E+00 Beta

<7.62E-01 0.00E+00 7.62E-01 Mn-54

<8.87E-01 0.00E+00 8.87E-01 Co-58

<1.99E+00 0.00E+00 1.99E+00 Fe-59

<6.43E-01 0.00E+00 6.43E-01 Co-60

<1.42E+00 0.00E+00 1.42E+00 Zn-65 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 57 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: DRINKING WATER Concentration (Activity): pCi/l Sample Point 218 [ CONTROL - NNE @ 13.5 miles ]

Sample ID: 362143 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 12/9/2014

<1.32E+00 0.00E+00 1.32E+00 Zr-95

<1.14E+00 0.00E+00 1.14E+00 Nb-95

<1.19E+01 0.00E+00 1.19E+01 I-131

<8.43E-01 0.00E+00 8.43E-01 Cs-134

<6.53E-01 0.00E+00 6.53E-01 Cs-137

<3.71E+00 0.00E+00 3.71E+00 BaLa-140

<8.27E+00 0.00E+00 8.27E+00 Be-7 2.89E+01 7.36E+00 9.73E+00 K-40 Sample ID: 364860 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 12/9/2014 5.18E+02 1.28E+02 1.92E+02 H3DW Media Type: FISH Concentration (Activity): Unknown Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 287047 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014 BOTMFEEDER

<1.34E+01 0.00E+00 1.34E+01 Mn-54

<1.51E+01 0.00E+00 1.51E+01 Co-58

<3.88E+01 0.00E+00 3.88E+01 Fe-59

<1.90E+01 0.00E+00 1.90E+01 Co-60

<3.91E+01 0.00E+00 3.91E+01 Zn-65

<1.49E+01 0.00E+00 1.49E+01 Nb-95

<1.42E+01 0.00E+00 1.42E+01 I-131

<1.33E+01 0.00E+00 1.33E+01 Cs-134

<1.15E+01 0.00E+00 1.15E+01 Cs-137

<9.34E+01 0.00E+00 9.34E+01 Be-7 2.55E+03 2.03E+02 1.92E+02 K-40

<9.50E+00 0.00E+00 9.50E+00 Ag-110M

<2.09E+01 0.00E+00 2.09E+01 Sb-122

<2.87E+01 0.00E+00 2.87E+01 Sb-125 Sample ID: 287049 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014 FORAGER

<2.19E+01 0.00E+00 2.19E+01 Mn-54

<2.63E+01 0.00E+00 2.63E+01 Co-58

<3.91E+01 0.00E+00 3.91E+01 Fe-59

<2.88E+01 0.00E+00 2.88E+01 Co-60

<5.33E+01 0.00E+00 5.33E+01 Zn-65

<2.58E+01 0.00E+00 2.58E+01 Nb-95

<2.24E+01 0.00E+00 2.24E+01 I-131

<2.27E+01 0.00E+00 2.27E+01 Cs-134

<2.06E+01 0.00E+00 2.06E+01 Cs-137

<2.04E+02 0.00E+00 2.04E+02 Be-7 3.26E+03 2.81E+02 2.63E+02 K-40

<2.66E+01 0.00E+00 2.66E+01 Ag-110M

<2.63E+01 0.00E+00 2.63E+01 Sb-122

<6.08E+01 0.00E+00 6.08E+01 Sb-125 Sample ID: 287051 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014 FREESWIM

<1.05E+01 0.00E+00 1.05E+01 Mn-54

<8.69E+00 0.00E+00 8.69E+00 Co-58

<2.20E+01 0.00E+00 2.20E+01 Fe-59

<1.14E+01 0.00E+00 1.14E+01 Co-60

<2.83E+01 0.00E+00 2.83E+01 Zn-65

<9.57E+00 0.00E+00 9.57E+00 Nb-95

<9.45E+00 0.00E+00 9.45E+00 I-131

<9.03E+00 0.00E+00 9.03E+00 Cs-134 1.10E+01 3.37E+00 9.65E+00 Cs-137 5.16E+01 2.38E+01 6.92E+01 Be-7 3.29E+03 1.54E+02 9.10E+01 K-40

<9.54E+00 0.00E+00 9.54E+00 Ag-110M

<1.40E+01 0.00E+00 1.40E+01 Sb-122

<2.24E+01 0.00E+00 2.24E+01 Sb-125 Sample ID: 356989 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 FREESWIM

<1.83E+01 0.00E+00 1.83E+01 Mn-54

<2.19E+01 0.00E+00 2.19E+01 Co-58 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 58 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: FISH Concentration (Activity): Unknown Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 356989 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 FREESWIM

<5.76E+01 0.00E+00 5.76E+01 Fe-59

<3.20E+01 0.00E+00 3.20E+01 Co-60

<5.35E+01 0.00E+00 5.35E+01 Zn-65

<1.98E+01 0.00E+00 1.98E+01 Nb-95

<3.60E+01 0.00E+00 3.60E+01 I-131

<2.34E+01 0.00E+00 2.34E+01 Cs-134

<2.13E+01 0.00E+00 2.13E+01 Cs-137

<1.49E+02 0.00E+00 1.49E+02 Be-7 3.07E+03 5.59E+02 5.47E+01 K-40

<3.28E+00 0.00E+00 3.28E+00 Ag-110M

<1.68E+02 0.00E+00 1.68E+02 Sb-122

<4.82E+01 0.00E+00 4.82E+01 Sb-125 Sample ID: 356990 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 BOTMFEEDER

<1.98E+01 0.00E+00 1.98E+01 Mn-54

<2.37E+01 0.00E+00 2.37E+01 Co-58

<4.89E+01 0.00E+00 4.89E+01 Fe-59

<1.60E+01 0.00E+00 1.60E+01 Co-60

<4.62E+01 0.00E+00 4.62E+01 Zn-65

<1.51E+01 0.00E+00 1.51E+01 Nb-95

<2.89E+01 0.00E+00 2.89E+01 I-131

<3.05E+01 0.00E+00 3.05E+01 Cs-134

<2.72E+01 0.00E+00 2.72E+01 Cs-137

<1.69E+02 0.00E+00 1.69E+02 Be-7 2.62E+03 5.35E+02 2.34E+02 K-40

<1.85E+01 0.00E+00 1.85E+01 Ag-110M

<1.79E+02 0.00E+00 1.79E+02 Sb-122

<6.20E+01 0.00E+00 6.20E+01 Sb-125 Sample ID: 356991 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 FORAGER

<2.99E+01 0.00E+00 2.99E+01 Mn-54

<3.12E+01 0.00E+00 3.12E+01 Co-58

<6.10E+01 0.00E+00 6.10E+01 Fe-59

<3.26E+01 0.00E+00 3.26E+01 Co-60

<9.94E+01 0.00E+00 9.94E+01 Zn-65

<3.22E+01 0.00E+00 3.22E+01 Nb-95

<4.37E+01 0.00E+00 4.37E+01 I-131

<2.75E+01 0.00E+00 2.75E+01 Cs-134

<3.63E+01 0.00E+00 3.63E+01 Cs-137

<2.30E+02 0.00E+00 2.30E+02 Be-7 2.68E+03 6.32E+02 4.71E+02 K-40

<2.14E+01 0.00E+00 2.14E+01 Ag-110M

<2.11E+02 0.00E+00 2.11E+02 Sb-122

<7.26E+01 0.00E+00 7.26E+01 Sb-125 Sample Point 216 [ CONTROL - NNE @ 4.19 miles ]

Sample ID: 287048 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014 BOTMFEEDER

<8.66E+00 0.00E+00 8.66E+00 Mn-54

<1.00E+01 0.00E+00 1.00E+01 Co-58

<2.08E+01 0.00E+00 2.08E+01 Fe-59

<9.01E+00 0.00E+00 9.01E+00 Co-60

<2.36E+01 0.00E+00 2.36E+01 Zn-65

<8.54E+00 0.00E+00 8.54E+00 Nb-95

<9.21E+00 0.00E+00 9.21E+00 I-131

<7.21E+00 0.00E+00 7.21E+00 Cs-134

<1.23E+01 0.00E+00 1.23E+01 Cs-137

<6.87E+01 0.00E+00 6.87E+01 Be-7 3.71E+03 1.58E+02 7.95E+01 K-40

<8.58E+00 0.00E+00 8.58E+00 Ag-110M

<1.64E+01 0.00E+00 1.64E+01 Sb-122

<2.27E+01 0.00E+00 2.27E+01 Sb-125 Sample ID: 287050 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014 FORAGER

<1.15E+01 0.00E+00 1.15E+01 Mn-54

<1.30E+01 0.00E+00 1.30E+01 Co-58 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 59 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: FISH Concentration (Activity): Unknown Sample Point 216 [ CONTROL - NNE @ 4.19 miles ]

Sample ID: 287050 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014 FORAGER

<2.80E+01 0.00E+00 2.80E+01 Fe-59

<1.75E+01 0.00E+00 1.75E+01 Co-60

<2.91E+01 0.00E+00 2.91E+01 Zn-65

<1.32E+01 0.00E+00 1.32E+01 Nb-95

<9.99E+00 0.00E+00 9.99E+00 I-131

<1.03E+01 0.00E+00 1.03E+01 Cs-134

<1.35E+01 0.00E+00 1.35E+01 Cs-137

<8.54E+01 0.00E+00 8.54E+01 Be-7 3.03E+03 1.95E+02 1.26E+02 K-40

<8.99E+00 0.00E+00 8.99E+00 Ag-110M

<1.62E+01 0.00E+00 1.62E+01 Sb-122

<2.89E+01 0.00E+00 2.89E+01 Sb-125 Sample ID: 287052 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014 FREESWIM

<1.51E+01 0.00E+00 1.51E+01 Mn-54

<1.37E+01 0.00E+00 1.37E+01 Co-58

<3.72E+01 0.00E+00 3.72E+01 Fe-59

<1.46E+01 0.00E+00 1.46E+01 Co-60

<3.90E+01 0.00E+00 3.90E+01 Zn-65

<1.87E+01 0.00E+00 1.87E+01 Nb-95

<1.24E+01 0.00E+00 1.24E+01 I-131

<1.42E+01 0.00E+00 1.42E+01 Cs-134

<1.94E+01 0.00E+00 1.94E+01 Cs-137

<9.89E+01 0.00E+00 9.89E+01 Be-7 3.33E+03 2.43E+02 2.29E+02 K-40

<1.72E+01 0.00E+00 1.72E+01 Ag-110M

<2.62E+01 0.00E+00 2.62E+01 Sb-122

<3.87E+01 0.00E+00 3.87E+01 Sb-125 Sample ID: 356992 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 FREESWIM

<2.14E+01 0.00E+00 2.14E+01 Mn-54

<2.59E+01 0.00E+00 2.59E+01 Co-58

<5.30E+01 0.00E+00 5.30E+01 Fe-59

<9.04E+00 0.00E+00 9.04E+00 Co-60

<7.07E+01 0.00E+00 7.07E+01 Zn-65

<3.49E+01 0.00E+00 3.49E+01 Nb-95

<3.75E+01 0.00E+00 3.75E+01 I-131

<3.61E+01 0.00E+00 3.61E+01 Cs-134

<2.34E+01 0.00E+00 2.34E+01 Cs-137

<1.58E+02 0.00E+00 1.58E+02 Be-7 3.19E+03 7.30E+02 3.96E+02 K-40

<2.12E+01 0.00E+00 2.12E+01 Ag-110M

<2.34E+02 0.00E+00 2.34E+02 Sb-122

<4.57E+01 0.00E+00 4.57E+01 Sb-125 Sample ID: 356993 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 BOTMFEEDER

<2.06E+01 0.00E+00 2.06E+01 Mn-54

<2.78E+01 0.00E+00 2.78E+01 Co-58

<5.10E+01 0.00E+00 5.10E+01 Fe-59

<3.46E+01 0.00E+00 3.46E+01 Co-60

<7.99E+01 0.00E+00 7.99E+01 Zn-65

<1.75E+01 0.00E+00 1.75E+01 Nb-95

<4.64E+01 0.00E+00 4.64E+01 I-131

<3.48E+01 0.00E+00 3.48E+01 Cs-134

<2.52E+01 0.00E+00 2.52E+01 Cs-137

<1.32E+02 0.00E+00 1.32E+02 Be-7 3.06E+03 7.27E+02 5.15E+02 K-40

<2.04E+01 0.00E+00 2.04E+01 Ag-110M

<1.59E+02 0.00E+00 1.59E+02 Sb-122

<5.76E+01 0.00E+00 5.76E+01 Sb-125 Sample ID: 356994 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 FORAGER

<4.04E+01 0.00E+00 4.04E+01 Mn-54

<4.48E+01 0.00E+00 4.48E+01 Co-58

<9.99E+01 0.00E+00 9.99E+01 Fe-59

<1.12E+01 0.00E+00 1.12E+01 Co-60 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 60 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: FISH Concentration (Activity): Unknown Sample Point 216 [ CONTROL - NNE @ 4.19 miles ]

Sample ID: 356994 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/6/2014 - 10/6/2014 FORAGER

<1.03E+02 0.00E+00 1.03E+02 Zn-65

<5.57E+01 0.00E+00 5.57E+01 Nb-95

<3.96E+01 0.00E+00 3.96E+01 I-131

<8.61E+00 0.00E+00 8.61E+00 Cs-134

<3.82E+01 0.00E+00 3.82E+01 Cs-137

<2.90E+02 0.00E+00 2.90E+02 Be-7 1.90E+03 7.31E+02 8.36E+02 K-40

<3.21E+01 0.00E+00 3.21E+01 Ag-110M

<2.88E+02 0.00E+00 2.88E+02 Sb-122

<6.33E+01 0.00E+00 6.33E+01 Sb-125 Media Type: GROUND WATER Concentration (Activity): pCi/l Sample Point 254 [ INDICATOR - N @ 0.82 miles ]

Sample ID: 285951 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014

<7.15E+00 0.00E+00 7.15E+00 Mn-54

<5.68E+00 0.00E+00 5.68E+00 Co-58

<1.52E+01 0.00E+00 1.52E+01 Fe-59

<8.73E+00 0.00E+00 8.73E+00 Co-60

<1.41E+01 0.00E+00 1.41E+01 Zn-65

<1.28E+01 0.00E+00 1.28E+01 Zr-95

<6.24E+00 0.00E+00 6.24E+00 Nb-95

<1.09E+01 0.00E+00 1.09E+01 I-131

<7.06E+00 0.00E+00 7.06E+00 Cs-134

<6.02E+00 0.00E+00 6.02E+00 Cs-137

<1.01E+01 0.00E+00 1.01E+01 BaLa-140

<5.30E+01 0.00E+00 5.30E+01 Be-7 6.81E+01 2.05E+01 1.67E+01 K-40

<2.92E+01 0.00E+00 1.84E+02 H3GW Sample ID: 295632 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 5/28/2014

<5.56E+00 0.00E+00 5.56E+00 Mn-54

<6.30E+00 0.00E+00 6.30E+00 Co-58

<1.38E+01 0.00E+00 1.38E+01 Fe-59

<8.07E+00 0.00E+00 8.07E+00 Co-60

<1.22E+01 0.00E+00 1.22E+01 Zn-65

<1.32E+01 0.00E+00 1.32E+01 Zr-95

<6.36E+00 0.00E+00 6.36E+00 Nb-95

<1.04E+01 0.00E+00 1.04E+01 I-131

<6.67E+00 0.00E+00 6.67E+00 Cs-134

<6.54E+00 0.00E+00 6.54E+00 Cs-137

<7.58E+00 0.00E+00 7.58E+00 BaLa-140

<5.55E+01 0.00E+00 5.55E+01 Be-7 1.82E+02 4.80E+01 5.83E+01 K-40

<-1.7E+02 0.00E+00 1.89E+02 H3GW Media Type: MILK Concentration (Activity): pCi/l Sample Point 221 [ CONTROL - NW @ 14.5 miles ]

Sample ID: 281236 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/14/2014 - 1/14/2014

<4.31E+00 0.00E+00 4.31E+00 Be-7 4.69E+01 6.06E+00 6.85E+00 K-40

<6.04E-01 0.00E+00 6.04E-01 LLI-131

<8.61E+00 0.00E+00 8.61E+00 I-131

<8.01E+00 0.00E+00 8.01E+00 Cs-134

<9.78E+00 0.00E+00 9.78E+00 Cs-137

<1.15E+01 0.00E+00 1.15E+01 BaLa-140

<6.90E+01 0.00E+00 6.90E+01 Be-7 1.14E+03 1.28E+02 1.20E+02 K-40 Sample ID: 282167 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 1/28/2014

<3.64E+00 0.00E+00 3.64E+00 Be-7 4.40E+01 3.68E+00 4.60E+00 K-40

<6.48E-01 0.00E+00 6.48E-01 LLI-131

<9.73E+00 0.00E+00 9.73E+00 I-131

<9.19E+00 0.00E+00 9.19E+00 Cs-134 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 61 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: MILK Concentration (Activity): pCi/l Sample Point 221 [ CONTROL - NW @ 14.5 miles ]

Sample ID: 282167 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/28/2014 - 1/28/2014

<1.04E+01 0.00E+00 1.04E+01 Cs-137

<1.04E+01 0.00E+00 1.04E+01 BaLa-140

<7.86E+01 0.00E+00 7.86E+01 Be-7 1.74E+03 1.33E+02 1.35E+02 K-40 Sample ID: 283426 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/10/2014 - 2/10/2014

<4.89E+00 0.00E+00 4.89E+00 Be-7 4.48E+01 4.53E+00 6.52E+00 K-40

<6.29E-01 0.00E+00 6.29E-01 LLI-131

<7.52E+00 0.00E+00 7.52E+00 I-131

<8.56E+00 0.00E+00 8.56E+00 Cs-134

<1.02E+01 0.00E+00 1.02E+01 Cs-137

<8.12E+00 0.00E+00 8.12E+00 BaLa-140

<7.74E+01 0.00E+00 7.74E+01 Be-7 1.57E+03 1.22E+02 1.25E+02 K-40 Sample ID: 285154 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/25/2014 - 2/25/2014

<4.17E+00 0.00E+00 4.17E+00 Be-7 4.15E+01 4.39E+00 7.24E+00 K-40

<5.22E-01 0.00E+00 5.22E-01 LLI-131

<9.64E+00 0.00E+00 9.64E+00 I-131

<9.18E+00 0.00E+00 9.18E+00 Cs-134

<1.08E+01 0.00E+00 1.08E+01 Cs-137

<3.03E+00 0.00E+00 3.03E+00 BaLa-140

<6.87E+01 0.00E+00 6.87E+01 Be-7 1.50E+03 1.15E+02 9.91E+01 K-40 Sample ID: 286263 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/11/2014 - 3/11/2014

<1.82E+00 0.00E+00 1.82E+00 Be-7 4.47E+01 2.11E+00 1.90E+00 K-40

<4.51E-01 0.00E+00 4.51E-01 LLI-131

<8.31E+00 0.00E+00 8.31E+00 I-131

<8.87E+00 0.00E+00 8.87E+00 Cs-134

<8.11E+00 0.00E+00 8.11E+00 Cs-137

<7.47E+00 0.00E+00 7.47E+00 BaLa-140

<5.54E+01 0.00E+00 5.54E+01 Be-7 1.39E+03 1.24E+02 1.02E+02 K-40 Sample ID: 288399 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/25/2014 - 3/25/2014

<3.51E+00 0.00E+00 3.51E+00 Be-7 3.87E+01 4.89E+00 5.24E+00 K-40

<6.47E-01 0.00E+00 6.47E-01 LLI-131

<5.58E+00 0.00E+00 5.58E+00 I-131

<5.83E+00 0.00E+00 5.83E+00 Cs-134

<5.74E+00 0.00E+00 5.74E+00 Cs-137

<3.63E+00 0.00E+00 3.63E+00 BaLa-140

<4.48E+01 0.00E+00 4.48E+01 Be-7 1.62E+03 8.39E+01 3.73E+01 K-40 Sample ID: 289506 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/8/2014 - 4/8/2014

<3.71E+00 0.00E+00 3.71E+00 Be-7 4.39E+01 5.01E+00 6.21E+00 K-40

<5.91E-01 0.00E+00 5.91E-01 LLI-131

<6.57E+00 0.00E+00 6.57E+00 I-131

<9.94E+00 0.00E+00 9.94E+00 Cs-134

<9.94E+00 0.00E+00 9.94E+00 Cs-137

<6.52E+00 0.00E+00 6.52E+00 BaLa-140

<6.50E+01 0.00E+00 6.50E+01 Be-7 1.62E+03 1.19E+02 9.65E+01 K-40 Sample ID: 291524 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/22/2014

<3.27E+00 0.00E+00 3.27E+00 Be-7 2.41E+01 2.86E+00 4.46E+00 K-40

<5.61E-01 0.00E+00 5.61E-01 LLI-131

<6.42E+00 0.00E+00 6.42E+00 I-131

<5.38E+00 0.00E+00 5.38E+00 Cs-134

<7.22E+00 0.00E+00 7.22E+00 Cs-137 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 62 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: MILK Concentration (Activity): pCi/l Sample Point 221 [ CONTROL - NW @ 14.5 miles ]

Sample ID: 291524 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/22/2014 - 4/22/2014

<6.46E+00 0.00E+00 6.46E+00 BaLa-140

<3.98E+01 0.00E+00 3.98E+01 Be-7 1.06E+03 7.28E+01 5.59E+01 K-40 Sample ID: 293077 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/6/2014

<3.73E+00 0.00E+00 3.73E+00 Be-7

<6.34E+00 0.00E+00 6.34E+00 K-40

<6.09E-01 0.00E+00 6.09E-01 LLI-131

<8.66E+00 0.00E+00 8.66E+00 I-131

<8.00E+00 0.00E+00 8.00E+00 Cs-134

<9.15E+00 0.00E+00 9.15E+00 Cs-137

<9.95E+00 0.00E+00 9.95E+00 BaLa-140

<6.93E+01 0.00E+00 6.93E+01 Be-7 1.63E+03 1.20E+02 9.99E+01 K-40 Sample ID: 295231 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/20/2014 - 5/20/2014

<3.86E+00 0.00E+00 3.86E+00 Be-7 4.82E+01 3.76E+00 5.25E+00 K-40

<4.97E-01 0.00E+00 4.97E-01 LLI-131

<5.10E+00 0.00E+00 5.10E+00 I-131

<6.26E+00 0.00E+00 6.26E+00 Cs-134

<6.35E+00 0.00E+00 6.35E+00 Cs-137

<5.31E+00 0.00E+00 5.31E+00 BaLa-140

<4.62E+01 0.00E+00 4.62E+01 Be-7 1.55E+03 8.10E+01 4.85E+01 K-40 Sample ID: 295993 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/3/2014

<3.34E+00 0.00E+00 3.34E+00 Be-7 1.86E+01 3.93E+00 5.37E+00 K-40

<6.46E-01 0.00E+00 6.46E-01 LLI-131

<9.18E+00 0.00E+00 9.18E+00 I-131

<6.37E+00 0.00E+00 6.37E+00 Cs-134

<1.16E+01 0.00E+00 1.16E+01 Cs-137

<8.65E+00 0.00E+00 8.65E+00 BaLa-140

<5.97E+01 0.00E+00 5.97E+01 Be-7 1.49E+03 1.14E+02 6.37E+01 K-40 Sample ID: 296759 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/17/2014 - 6/17/2014

<3.98E+00 0.00E+00 3.98E+00 Be-7 5.23E+01 5.09E+00 6.62E+00 K-40

<5.98E-01 0.00E+00 5.98E-01 LLI-131

<6.27E+00 0.00E+00 6.27E+00 I-131

<5.22E+00 0.00E+00 5.22E+00 Cs-134

<6.76E+00 0.00E+00 6.76E+00 Cs-137

<7.13E+00 0.00E+00 7.13E+00 BaLa-140

<4.23E+01 0.00E+00 4.23E+01 Be-7 1.58E+03 8.80E+01 7.47E+01 K-40 Sample ID: 297387 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/1/2014

<3.24E+00 0.00E+00 3.24E+00 Be-7 3.95E+01 4.90E+00 4.77E+00 K-40

<6.47E-01 0.00E+00 6.47E-01 LLI-131

<9.73E+00 0.00E+00 9.73E+00 I-131

<5.91E+00 0.00E+00 5.91E+00 Cs-134

<9.87E+00 0.00E+00 9.87E+00 Cs-137

<9.48E+00 0.00E+00 9.48E+00 BaLa-140

<6.67E+01 0.00E+00 6.67E+01 Be-7 1.60E+03 1.22E+02 9.69E+01 K-40 Sample ID: 298207 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/15/2014

<6.26E-01 0.00E+00 6.26E-01 LLI-131

<1.00E+01 0.00E+00 1.00E+01 I-131

<4.91E+00 0.00E+00 4.91E+00 Cs-134

<5.07E+00 0.00E+00 5.07E+00 Cs-137

<9.02E+00 0.00E+00 9.02E+00 BaLa-140

<4.69E+01 0.00E+00 4.69E+01 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 63 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: MILK Concentration (Activity): pCi/l Sample Point 221 [ CONTROL - NW @ 14.5 miles ]

Sample ID: 298207 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/15/2014 - 7/15/2014 1.69E+03 2.07E+02 6.58E+01 K-40 Sample ID: 350675 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/29/2014 - 7/29/2014

<6.32E-01 0.00E+00 6.32E-01 LLI-131

<8.97E+00 0.00E+00 8.97E+00 I-131

<7.47E+00 0.00E+00 7.47E+00 Cs-134

<1.14E+01 0.00E+00 1.14E+01 Cs-137

<7.76E+00 0.00E+00 7.76E+00 BaLa-140

<6.83E+01 0.00E+00 6.83E+01 Be-7 1.51E+03 2.54E+02 1.25E+02 K-40 Sample ID: 351522 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/12/2014 - 8/12/2014

<6.26E-01 0.00E+00 6.26E-01 LLI-131

<1.04E+01 0.00E+00 1.04E+01 I-131

<5.90E+00 0.00E+00 5.90E+00 Cs-134

<1.05E+01 0.00E+00 1.05E+01 Cs-137

<1.04E+01 0.00E+00 1.04E+01 BaLa-140

<6.69E+01 0.00E+00 6.69E+01 Be-7 1.50E+03 2.74E+02 1.65E+02 K-40 Sample ID: 353955 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/26/2014 - 8/26/2014

<6.39E-01 0.00E+00 6.39E-01 LLI-131

<5.71E+00 0.00E+00 5.71E+00 I-131

<7.20E+00 0.00E+00 7.20E+00 Cs-134

<6.33E+00 0.00E+00 6.33E+00 Cs-137

<7.34E+00 0.00E+00 7.34E+00 BaLa-140

<3.92E+01 0.00E+00 3.92E+01 Be-7

<1.02E+02 0.00E+00 1.02E+02 K-40 Sample ID: 354713 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/9/2014 - 9/9/2014

<6.11E-01 0.00E+00 6.11E-01 LLI-131

<1.00E+01 0.00E+00 1.00E+01 I-131

<1.17E+01 0.00E+00 1.17E+01 Cs-134

<1.15E+01 0.00E+00 1.15E+01 Cs-137

<1.05E+01 0.00E+00 1.05E+01 BaLa-140

<8.04E+01 0.00E+00 8.04E+01 Be-7 1.58E+03 2.85E+02 1.73E+02 K-40 Sample ID: 355578 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/23/2014 - 9/23/2014

<6.43E-01 0.00E+00 6.43E-01 LLI-131

<1.13E+01 0.00E+00 1.13E+01 I-131

<1.13E+01 0.00E+00 1.13E+01 Cs-134

<9.43E+00 0.00E+00 9.43E+00 Cs-137

<7.68E+00 0.00E+00 7.68E+00 BaLa-140

<6.19E+01 0.00E+00 6.19E+01 Be-7 1.60E+03 2.76E+02 1.54E+02 K-40 Sample ID: 356995 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014

<6.43E-01 0.00E+00 6.43E-01 LLI-131

<5.42E+00 0.00E+00 5.42E+00 I-131

<5.97E+00 0.00E+00 5.97E+00 Cs-134

<1.15E+01 0.00E+00 1.15E+01 Cs-137

<9.21E+00 0.00E+00 9.21E+00 BaLa-140

<3.92E+01 0.00E+00 3.92E+01 Be-7 1.57E+03 2.47E+02 8.87E+01 K-40 Sample ID: 358612 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/21/2014 - 10/21/2014

<6.19E-01 0.00E+00 6.19E-01 LLI-131

<1.17E+01 0.00E+00 1.17E+01 I-131

<1.13E+01 0.00E+00 1.13E+01 Cs-134

<1.04E+01 0.00E+00 1.04E+01 Cs-137

<2.80E+00 0.00E+00 2.80E+00 BaLa-140

<7.06E+01 0.00E+00 7.06E+01 Be-7 1.67E+03 2.76E+02 1.07E+02 K-40 Sample ID: 359977 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014

<5.43E-01 0.00E+00 5.43E-01 LLI-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 64 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: MILK Concentration (Activity): pCi/l Sample Point 221 [ CONTROL - NW @ 14.5 miles ]

Sample ID: 359977 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014

<5.95E+00 0.00E+00 5.95E+00 I-131

<5.97E+00 0.00E+00 5.97E+00 Cs-134

<9.23E+00 0.00E+00 9.23E+00 Cs-137

<6.20E+00 0.00E+00 6.20E+00 BaLa-140

<4.88E+01 0.00E+00 4.88E+01 Be-7 1.52E+03 2.49E+02 1.40E+02 K-40 Sample ID: 361530 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/18/2014 - 11/18/2014

<6.15E-01 0.00E+00 6.15E-01 LLI-131

<1.31E+01 0.00E+00 1.31E+01 I-131

<9.02E+00 0.00E+00 9.02E+00 Cs-134

<1.40E+01 0.00E+00 1.40E+01 Cs-137

<5.38E+00 0.00E+00 5.38E+00 BaLa-140

<1.08E+02 0.00E+00 1.08E+02 Be-7 1.78E+03 3.63E+02 4.23E+01 K-40 Sample ID: 362730 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/2/2014

<6.38E-01 0.00E+00 6.38E-01 LLI-131

<1.02E+01 0.00E+00 1.02E+01 I-131

<1.08E+01 0.00E+00 1.08E+01 Cs-134

<7.74E+00 0.00E+00 7.74E+00 Cs-137

<8.18E+00 0.00E+00 8.18E+00 BaLa-140

<6.82E+01 0.00E+00 6.82E+01 Be-7 1.52E+03 2.80E+02 1.91E+02 K-40 Sample ID: 363926 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/16/2014 - 12/16/2014

<6.24E-01 0.00E+00 6.24E-01 LLI-131

<8.63E+00 0.00E+00 8.63E+00 I-131

<9.39E+00 0.00E+00 9.39E+00 Cs-134

<7.18E+00 0.00E+00 7.18E+00 Cs-137

<9.22E+00 0.00E+00 9.22E+00 BaLa-140

<6.29E+01 0.00E+00 6.29E+01 Be-7 1.48E+03 2.30E+02 7.12E+01 K-40 Sample ID: 364898 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/30/2014 - 12/30/2014

<6.50E-01 0.00E+00 6.50E-01 LLI-131

<6.89E+00 0.00E+00 6.89E+00 I-131

<5.15E+00 0.00E+00 5.15E+00 Cs-134

<6.43E+00 0.00E+00 6.43E+00 Cs-137

<5.98E+00 0.00E+00 5.98E+00 BaLa-140

<5.61E+01 0.00E+00 5.61E+01 Be-7 1.49E+03 2.39E+02 8.34E+01 K-40 Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 287062 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/15/2014

<2.58E+01 0.00E+00 2.58E+01 Mn-54

<2.35E+01 0.00E+00 2.35E+01 Co-58

<5.96E+01 0.00E+00 5.96E+01 Fe-59

<2.80E+01 0.00E+00 2.80E+01 Co-60

<6.17E+01 0.00E+00 6.17E+01 Zn-65

<4.27E+01 0.00E+00 4.27E+01 Zr-95

<2.67E+01 0.00E+00 2.67E+01 Nb-95

<2.83E+01 0.00E+00 2.83E+01 I-131

<1.71E+01 0.00E+00 1.71E+01 Cs-134

<2.90E+01 0.00E+00 2.90E+01 Cs-137

<2.01E+02 0.00E+00 2.01E+02 Be-7 1.50E+04 4.65E+02 2.34E+02 K-40

<1.57E+01 0.00E+00 1.57E+01 Co-57

<7.62E+02 0.00E+00 7.62E+02 Mo-99

<2.16E+01 0.00E+00 2.16E+01 Ag-110M

<1.13E+02 0.00E+00 1.13E+02 Sb-122

<4.71E+01 0.00E+00 4.71E+01 Sb-125 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 65 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 357306 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 6.84E+01 1.34E+01 1.77E+01 Mn-54 8.87E+02 8.67E+01 2.99E+01 Co-58

<3.81E+01 0.00E+00 3.81E+01 Fe-59 7.90E+02 7.10E+01 2.51E+01 Co-60

<3.86E+01 0.00E+00 3.86E+01 Zn-65

<2.63E+01 0.00E+00 2.63E+01 Zr-95

<1.74E+01 0.00E+00 1.74E+01 Nb-95

<3.33E+01 0.00E+00 3.33E+01 I-131

<1.97E+01 0.00E+00 1.97E+01 Cs-134 2.46E+01 9.57E+00 1.44E+01 Cs-137 7.83E+02 3.27E+02 5.22E+02 Be-7 1.77E+04 1.52E+03 1.84E+02 K-40

<1.23E+01 0.00E+00 1.23E+01 Co-57

<2.84E+03 0.00E+00 2.84E+03 Mo-99

<1.26E+01 0.00E+00 1.26E+01 Ag-110M

<4.58E+02 0.00E+00 4.58E+02 Sb-122

<3.64E+01 0.00E+00 3.64E+01 Sb-125 Sample Point 210 [ INDICATOR - SE @ 2.31 miles ]

Sample ID: 287063 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/15/2014

<1.21E+01 0.00E+00 1.21E+01 Mn-54

<1.14E+01 0.00E+00 1.14E+01 Co-58

<2.60E+01 0.00E+00 2.60E+01 Fe-59

<1.15E+01 0.00E+00 1.15E+01 Co-60

<2.99E+01 0.00E+00 2.99E+01 Zn-65

<1.99E+01 0.00E+00 1.99E+01 Zr-95

<1.38E+01 0.00E+00 1.38E+01 Nb-95

<1.69E+01 0.00E+00 1.69E+01 I-131

<9.95E+00 0.00E+00 9.95E+00 Cs-134

<1.22E+01 0.00E+00 1.22E+01 Cs-137 1.20E+02 3.95E+01 8.60E+01 Be-7 7.16E+03 2.07E+02 9.02E+01 K-40

<9.19E+00 0.00E+00 9.19E+00 Co-57

<3.02E+02 0.00E+00 3.02E+02 Mo-99

<9.35E+00 0.00E+00 9.35E+00 Ag-110M

<6.22E+01 0.00E+00 6.22E+01 Sb-122

<2.88E+01 0.00E+00 2.88E+01 Sb-125 Sample ID: 357307 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014

<2.01E+01 0.00E+00 2.01E+01 Mn-54

<1.37E+01 0.00E+00 1.37E+01 Co-58

<3.69E+01 0.00E+00 3.69E+01 Fe-59

<2.10E+01 0.00E+00 2.10E+01 Co-60

<5.22E+01 0.00E+00 5.22E+01 Zn-65

<3.38E+01 0.00E+00 3.38E+01 Zr-95

<1.83E+01 0.00E+00 1.83E+01 Nb-95

<2.02E+01 0.00E+00 2.02E+01 I-131

<2.09E+01 0.00E+00 2.09E+01 Cs-134

<1.80E+01 0.00E+00 1.80E+01 Cs-137

<1.52E+02 0.00E+00 1.52E+02 Be-7 6.64E+03 7.89E+02 3.28E+01 K-40

<1.25E+01 0.00E+00 1.25E+01 Co-57

<6.94E+02 0.00E+00 6.94E+02 Mo-99

<1.66E+01 0.00E+00 1.66E+01 Ag-110M

<1.11E+02 0.00E+00 1.11E+02 Sb-122

<3.63E+01 0.00E+00 3.63E+01 Sb-125 Sample Point 215 [ CONTROL - NNE @ 4.21 miles ]

Sample ID: 287064 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/15/2014

<2.71E+01 0.00E+00 2.71E+01 Mn-54

<3.03E+01 0.00E+00 3.03E+01 Co-58

<7.19E+01 0.00E+00 7.19E+01 Fe-59

<3.31E+01 0.00E+00 3.31E+01 Co-60

<8.38E+01 0.00E+00 8.38E+01 Zn-65 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 66 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SEDIMENT_SHORE Concentration (Activity): pCi/kg Sample Point 215 [ CONTROL - NNE @ 4.21 miles ]

Sample ID: 287064 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/15/2014 - 4/15/2014

<4.78E+01 0.00E+00 4.78E+01 Zr-95

<3.42E+01 0.00E+00 3.42E+01 Nb-95

<3.59E+01 0.00E+00 3.59E+01 I-131

<2.33E+01 0.00E+00 2.33E+01 Cs-134

<2.59E+01 0.00E+00 2.59E+01 Cs-137 2.15E+02 1.09E+02 2.03E+02 Be-7 2.01E+04 5.42E+02 2.77E+02 K-40

<1.64E+01 0.00E+00 1.64E+01 Co-57

<9.19E+02 0.00E+00 9.19E+02 Mo-99

<2.46E+01 0.00E+00 2.46E+01 Ag-110M

<1.47E+02 0.00E+00 1.47E+02 Sb-122

<6.46E+01 0.00E+00 6.46E+01 Sb-125 Sample ID: 357308 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014

<2.29E+01 0.00E+00 2.29E+01 Mn-54

<1.60E+01 0.00E+00 1.60E+01 Co-58

<5.09E+01 0.00E+00 5.09E+01 Fe-59

<2.96E+01 0.00E+00 2.96E+01 Co-60

<6.30E+01 0.00E+00 6.30E+01 Zn-65

<3.45E+01 0.00E+00 3.45E+01 Zr-95

<2.16E+01 0.00E+00 2.16E+01 Nb-95

<2.48E+01 0.00E+00 2.48E+01 I-131

<2.60E+01 0.00E+00 2.60E+01 Cs-134

<2.34E+01 0.00E+00 2.34E+01 Cs-137

<1.62E+02 0.00E+00 1.62E+02 Be-7 1.28E+04 1.35E+03 3.93E+02 K-40

<1.85E+01 0.00E+00 1.85E+01 Co-57

<9.45E+02 0.00E+00 9.45E+02 Mo-99

<1.74E+01 0.00E+00 1.74E+01 Ag-110M

<1.35E+02 0.00E+00 1.35E+02 Sb-122

<5.17E+01 0.00E+00 5.17E+01 Sb-125 Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 280923 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 1/7/2014

<3.89E+00 0.00E+00 3.89E+00 Mn-54

<4.21E+00 0.00E+00 4.21E+00 Co-58

<1.01E+01 0.00E+00 1.01E+01 Fe-59

<5.70E+00 0.00E+00 5.70E+00 Co-60

<7.30E+00 0.00E+00 7.30E+00 Zn-65

<7.63E+00 0.00E+00 7.63E+00 Zr-95

<4.84E+00 0.00E+00 4.84E+00 Nb-95

<1.43E+01 0.00E+00 1.43E+01 I-131

<3.61E+00 0.00E+00 3.61E+00 Cs-134

<4.31E+00 0.00E+00 4.31E+00 Cs-137

<8.22E+00 0.00E+00 8.22E+00 BaLa-140

<4.09E+01 0.00E+00 4.09E+01 Be-7 1.42E+02 2.17E+01 2.99E+01 K-40 Sample ID: 283100 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 2/4/2014

<3.40E+00 0.00E+00 3.40E+00 Mn-54

<3.55E+00 0.00E+00 3.55E+00 Co-58

<7.66E+00 0.00E+00 7.66E+00 Fe-59

<3.40E+00 0.00E+00 3.40E+00 Co-60

<6.32E+00 0.00E+00 6.32E+00 Zn-65

<7.50E+00 0.00E+00 7.50E+00 Zr-95

<3.82E+00 0.00E+00 3.82E+00 Nb-95

<1.25E+01 0.00E+00 1.25E+01 I-131

<3.09E+00 0.00E+00 3.09E+00 Cs-134

<3.52E+00 0.00E+00 3.52E+00 Cs-137

<9.98E+00 0.00E+00 9.98E+00 BaLa-140

<3.31E+01 0.00E+00 3.31E+01 Be-7 2.05E+02 2.43E+01 3.02E+01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 67 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 284771 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 3/4/2014 5.65E+03 1.20E+02 1.91E+02 H3SW Sample ID: 285948 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 3/4/2014

<3.13E+00 0.00E+00 3.13E+00 Mn-54

<3.16E+00 0.00E+00 3.16E+00 Co-58

<8.60E+00 0.00E+00 8.60E+00 Fe-59

<3.83E+00 0.00E+00 3.83E+00 Co-60

<7.23E+00 0.00E+00 7.23E+00 Zn-65

<5.74E+00 0.00E+00 5.74E+00 Zr-95

<4.43E+00 0.00E+00 4.43E+00 Nb-95

<1.14E+01 0.00E+00 1.14E+01 I-131

<2.30E+00 0.00E+00 2.30E+00 Cs-134

<3.38E+00 0.00E+00 3.38E+00 Cs-137

<8.03E+00 0.00E+00 8.03E+00 BaLa-140

<3.30E+01 0.00E+00 3.30E+01 Be-7 5.41E+01 2.02E+01 2.68E+01 K-40 Sample ID: 289191 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 4/1/2014

<2.78E+00 0.00E+00 2.78E+00 Mn-54

<2.98E+00 0.00E+00 2.98E+00 Co-58

<6.68E+00 0.00E+00 6.68E+00 Fe-59

<3.09E+00 0.00E+00 3.09E+00 Co-60

<6.50E+00 0.00E+00 6.50E+00 Zn-65

<5.65E+00 0.00E+00 5.65E+00 Zr-95

<4.33E+00 0.00E+00 4.33E+00 Nb-95

<1.13E+01 0.00E+00 1.13E+01 I-131

<2.98E+00 0.00E+00 2.98E+00 Cs-134

<3.13E+00 0.00E+00 3.13E+00 Cs-137

<6.60E+00 0.00E+00 6.60E+00 BaLa-140

<3.09E+01 0.00E+00 3.09E+01 Be-7 1.75E+02 2.74E+01 2.57E+01 K-40 Sample ID: 292876 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/29/2014

<4.67E+00 0.00E+00 4.67E+00 Mn-54

<4.14E+00 0.00E+00 4.14E+00 Co-58

<1.36E+01 0.00E+00 1.36E+01 Fe-59

<6.53E+00 0.00E+00 6.53E+00 Co-60

<9.53E+00 0.00E+00 9.53E+00 Zn-65

<9.46E+00 0.00E+00 9.46E+00 Zr-95

<5.35E+00 0.00E+00 5.35E+00 Nb-95

<1.45E+01 0.00E+00 1.45E+01 I-131

<3.72E+00 0.00E+00 3.72E+00 Cs-134

<5.48E+00 0.00E+00 5.48E+00 Cs-137

<1.28E+01 0.00E+00 1.28E+01 BaLa-140

<4.19E+01 0.00E+00 4.19E+01 Be-7 6.45E+01 2.56E+01 5.59E+01 K-40 Sample ID: 295304 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 5/28/2014 1.61E+04 1.88E+02 1.87E+02 H3SW Sample ID: 295628 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/28/2014

<2.13E+00 0.00E+00 2.13E+00 Mn-54

<2.88E+00 0.00E+00 2.88E+00 Co-58

<5.48E+00 0.00E+00 5.48E+00 Fe-59

<2.82E+00 0.00E+00 2.82E+00 Co-60

<5.48E+00 0.00E+00 5.48E+00 Zn-65

<4.87E+00 0.00E+00 4.87E+00 Zr-95

<3.05E+00 0.00E+00 3.05E+00 Nb-95

<1.17E+01 0.00E+00 1.17E+01 I-131

<2.21E+00 0.00E+00 2.21E+00 Cs-134

<2.82E+00 0.00E+00 2.82E+00 Cs-137

<7.28E+00 0.00E+00 7.28E+00 BaLa-140

<2.43E+01 0.00E+00 2.43E+01 Be-7 6.10E+01 1.22E+01 2.36E+01 K-40 Sample ID: 297110 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/24/2014

<4.52E+00 0.00E+00 4.52E+00 Mn-54 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 68 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 297110 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/24/2014

<4.56E+00 0.00E+00 4.56E+00 Co-58

<8.62E+00 0.00E+00 8.62E+00 Fe-59

<3.90E+00 0.00E+00 3.90E+00 Co-60

<1.12E+01 0.00E+00 1.12E+01 Zn-65

<8.42E+00 0.00E+00 8.42E+00 Zr-95

<5.83E+00 0.00E+00 5.83E+00 Nb-95

<1.40E+01 0.00E+00 1.40E+01 I-131

<3.89E+00 0.00E+00 3.89E+00 Cs-134

<4.70E+00 0.00E+00 4.70E+00 Cs-137

<1.38E+01 0.00E+00 1.38E+01 BaLa-140

<3.49E+01 0.00E+00 3.49E+01 Be-7 5.30E+01 2.27E+01 4.86E+01 K-40 Sample ID: 350536 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/22/2014

<2.38E+00 0.00E+00 2.38E+00 Mn-54

<3.02E+00 0.00E+00 3.02E+00 Co-58

<5.94E+00 0.00E+00 5.94E+00 Fe-59

<2.51E+00 0.00E+00 2.51E+00 Co-60

<4.92E+00 0.00E+00 4.92E+00 Zn-65

<5.41E+00 0.00E+00 5.41E+00 Zr-95

<3.51E+00 0.00E+00 3.51E+00 Nb-95

<1.20E+01 0.00E+00 1.20E+01 I-131

<1.96E+00 0.00E+00 1.96E+00 Cs-134

<2.39E+00 0.00E+00 2.39E+00 Cs-137

<6.51E+00 0.00E+00 6.51E+00 BaLa-140

<2.58E+01 0.00E+00 2.58E+01 Be-7 1.61E+02 3.83E+01 4.42E+01 K-40 Sample ID: 353382 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 8/19/2014

<4.02E+00 0.00E+00 4.02E+00 Mn-54

<4.19E+00 0.00E+00 4.19E+00 Co-58

<6.15E+00 0.00E+00 6.15E+00 Fe-59

<2.50E+00 0.00E+00 2.50E+00 Co-60

<9.37E+00 0.00E+00 9.37E+00 Zn-65

<1.03E+01 0.00E+00 1.03E+01 Zr-95

<4.08E+00 0.00E+00 4.08E+00 Nb-95

<1.14E+01 0.00E+00 1.14E+01 I-131

<5.09E+00 0.00E+00 5.09E+00 Cs-134

<4.62E+00 0.00E+00 4.62E+00 Cs-137

<9.73E+00 0.00E+00 9.73E+00 BaLa-140

<3.54E+01 0.00E+00 3.54E+01 Be-7

<7.20E+01 0.00E+00 7.20E+01 K-40 Sample ID: 354218 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 8/19/2014 5.96E+03 2.41E+02 1.90E+02 H3SW Sample ID: 355060 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014

<4.01E+00 0.00E+00 4.01E+00 Mn-54 7.93E+00 3.78E+00 5.18E+00 Co-58

<7.46E+00 0.00E+00 7.46E+00 Fe-59 6.14E+00 3.22E+00 4.19E+00 Co-60

<5.69E+00 0.00E+00 5.69E+00 Zn-65

<6.02E+00 0.00E+00 6.02E+00 Zr-95

<4.29E+00 0.00E+00 4.29E+00 Nb-95

<1.17E+01 0.00E+00 1.17E+01 I-131

<3.76E+00 0.00E+00 3.76E+00 Cs-134

<3.09E+00 0.00E+00 3.09E+00 Cs-137

<8.27E+00 0.00E+00 8.27E+00 BaLa-140

<3.16E+01 0.00E+00 3.16E+01 Be-7 6.31E+01 3.23E+01 4.14E+01 K-40 Sample ID: 357989 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 10/14/2014

<2.22E+00 0.00E+00 2.22E+00 Mn-54 6.53E+00 3.49E+00 5.49E+00 Co-58

<4.69E+00 0.00E+00 4.69E+00 Fe-59 3.24E+00 2.34E+00 3.70E+00 Co-60 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 69 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 208 [ INDICATOR - S @ 0.45 miles ]

Sample ID: 357989 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 10/14/2014

<3.93E+00 0.00E+00 3.93E+00 Zn-65

<4.25E+00 0.00E+00 4.25E+00 Zr-95

<2.96E+00 0.00E+00 2.96E+00 Nb-95

<1.11E+01 0.00E+00 1.11E+01 I-131

<2.42E+00 0.00E+00 2.42E+00 Cs-134

<1.90E+00 0.00E+00 1.90E+00 Cs-137

<6.41E+00 0.00E+00 6.41E+00 BaLa-140

<1.97E+01 0.00E+00 1.97E+01 Be-7 1.02E+02 2.32E+01 2.61E+01 K-40 Sample ID: 360662 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 11/11/2014

<3.09E+00 0.00E+00 3.09E+00 Mn-54

<3.23E+00 0.00E+00 3.23E+00 Co-58

<5.99E+00 0.00E+00 5.99E+00 Fe-59

<3.46E+00 0.00E+00 3.46E+00 Co-60

<5.59E+00 0.00E+00 5.59E+00 Zn-65

<5.78E+00 0.00E+00 5.78E+00 Zr-95

<3.75E+00 0.00E+00 3.75E+00 Nb-95

<1.17E+01 0.00E+00 1.17E+01 I-131

<3.32E+00 0.00E+00 3.32E+00 Cs-134

<2.53E+00 0.00E+00 2.53E+00 Cs-137

<6.72E+00 0.00E+00 6.72E+00 BaLa-140

<2.86E+01 0.00E+00 2.86E+01 Be-7 1.70E+02 3.78E+01 3.77E+01 K-40 Sample ID: 363473 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 12/9/2014

<1.47E+00 0.00E+00 1.47E+00 Mn-54

<1.76E+00 0.00E+00 1.76E+00 Co-58

<4.06E+00 0.00E+00 4.06E+00 Fe-59

<1.54E+00 0.00E+00 1.54E+00 Co-60

<2.88E+00 0.00E+00 2.88E+00 Zn-65

<3.35E+00 0.00E+00 3.35E+00 Zr-95

<2.36E+00 0.00E+00 2.36E+00 Nb-95

<1.18E+01 0.00E+00 1.18E+01 I-131

<1.60E+00 0.00E+00 1.60E+00 Cs-134

<1.39E+00 0.00E+00 1.39E+00 Cs-137

<5.71E+00 0.00E+00 5.71E+00 BaLa-140

<1.48E+01 0.00E+00 1.48E+01 Be-7 1.29E+02 2.66E+01 3.49E+01 K-40 Sample ID: 364446 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 12/9/2014 3.43E+03 2.00E+02 1.92E+02 H3SW Sample Point 211 [ INDICATOR - ESE @ 4.06 miles ]

Sample ID: 280924 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 1/7/2014

<3.32E+00 0.00E+00 3.32E+00 Mn-54

<3.58E+00 0.00E+00 3.58E+00 Co-58

<6.72E+00 0.00E+00 6.72E+00 Fe-59

<4.26E+00 0.00E+00 4.26E+00 Co-60

<7.41E+00 0.00E+00 7.41E+00 Zn-65

<6.71E+00 0.00E+00 6.71E+00 Zr-95

<4.36E+00 0.00E+00 4.36E+00 Nb-95

<9.88E+00 0.00E+00 9.88E+00 I-131

<2.91E+00 0.00E+00 2.91E+00 Cs-134

<3.86E+00 0.00E+00 3.86E+00 Cs-137

<8.66E+00 0.00E+00 8.66E+00 BaLa-140

<2.94E+01 0.00E+00 2.94E+01 Be-7 6.98E+01 1.76E+01 2.78E+01 K-40 Sample ID: 283101 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 2/4/2014

<4.02E+00 0.00E+00 4.02E+00 Mn-54

<4.17E+00 0.00E+00 4.17E+00 Co-58

<8.61E+00 0.00E+00 8.61E+00 Fe-59

<5.70E+00 0.00E+00 5.70E+00 Co-60

<6.43E+00 0.00E+00 6.43E+00 Zn-65

<8.10E+00 0.00E+00 8.10E+00 Zr-95 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 70 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 211 [ INDICATOR - ESE @ 4.06 miles ]

Sample ID: 283101 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 2/4/2014

<3.92E+00 0.00E+00 3.92E+00 Nb-95

<1.42E+01 0.00E+00 1.42E+01 I-131

<3.33E+00 0.00E+00 3.33E+00 Cs-134

<4.12E+00 0.00E+00 4.12E+00 Cs-137

<1.15E+01 0.00E+00 1.15E+01 BaLa-140

<3.84E+01 0.00E+00 3.84E+01 Be-7 1.02E+02 1.62E+01 3.86E+01 K-40 Sample ID: 284772 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 3/4/2014 4.04E+02 6.46E+01 1.91E+02 H3SW Sample ID: 285949 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 3/4/2014

<3.39E+00 0.00E+00 3.39E+00 Mn-54

<3.35E+00 0.00E+00 3.35E+00 Co-58

<8.16E+00 0.00E+00 8.16E+00 Fe-59

<3.55E+00 0.00E+00 3.55E+00 Co-60

<6.67E+00 0.00E+00 6.67E+00 Zn-65

<5.69E+00 0.00E+00 5.69E+00 Zr-95

<4.70E+00 0.00E+00 4.70E+00 Nb-95

<1.34E+01 0.00E+00 1.34E+01 I-131

<3.31E+00 0.00E+00 3.31E+00 Cs-134

<3.42E+00 0.00E+00 3.42E+00 Cs-137

<8.31E+00 0.00E+00 8.31E+00 BaLa-140

<3.78E+01 0.00E+00 3.78E+01 Be-7 1.74E+02 2.03E+01 3.09E+01 K-40 Sample ID: 289192 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 4/1/2014

<3.96E+00 0.00E+00 3.96E+00 Mn-54

<4.68E+00 0.00E+00 4.68E+00 Co-58

<1.02E+01 0.00E+00 1.02E+01 Fe-59

<3.11E+00 0.00E+00 3.11E+00 Co-60

<8.81E+00 0.00E+00 8.81E+00 Zn-65

<8.72E+00 0.00E+00 8.72E+00 Zr-95

<4.70E+00 0.00E+00 4.70E+00 Nb-95

<1.44E+01 0.00E+00 1.44E+01 I-131

<3.11E+00 0.00E+00 3.11E+00 Cs-134

<4.40E+00 0.00E+00 4.40E+00 Cs-137

<8.99E+00 0.00E+00 8.99E+00 BaLa-140

<4.40E+01 0.00E+00 4.40E+01 Be-7 1.49E+02 2.50E+01 4.65E+01 K-40 Sample ID: 292877 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/29/2014

<4.04E+00 0.00E+00 4.04E+00 Mn-54

<4.30E+00 0.00E+00 4.30E+00 Co-58

<9.02E+00 0.00E+00 9.02E+00 Fe-59

<3.04E+00 0.00E+00 3.04E+00 Co-60

<7.12E+00 0.00E+00 7.12E+00 Zn-65

<7.15E+00 0.00E+00 7.15E+00 Zr-95

<4.44E+00 0.00E+00 4.44E+00 Nb-95

<1.44E+01 0.00E+00 1.44E+01 I-131

<3.21E+00 0.00E+00 3.21E+00 Cs-134

<3.79E+00 0.00E+00 3.79E+00 Cs-137

<7.17E+00 0.00E+00 7.17E+00 BaLa-140

<3.90E+01 0.00E+00 3.90E+01 Be-7

<7.59E+01 0.00E+00 7.59E+01 K-40 Sample ID: 295305 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 5/28/2014 6.23E+02 6.71E+01 1.88E+02 H3SW Sample ID: 295629 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/28/2014

<2.78E+00 0.00E+00 2.78E+00 Mn-54

<3.67E+00 0.00E+00 3.67E+00 Co-58

<8.47E+00 0.00E+00 8.47E+00 Fe-59

<3.54E+00 0.00E+00 3.54E+00 Co-60

<7.01E+00 0.00E+00 7.01E+00 Zn-65

<5.93E+00 0.00E+00 5.93E+00 Zr-95

<4.47E+00 0.00E+00 4.47E+00 Nb-95 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 71 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 211 [ INDICATOR - ESE @ 4.06 miles ]

Sample ID: 295629 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/28/2014

<1.43E+01 0.00E+00 1.43E+01 I-131

<2.69E+00 0.00E+00 2.69E+00 Cs-134

<3.19E+00 0.00E+00 3.19E+00 Cs-137

<9.39E+00 0.00E+00 9.39E+00 BaLa-140

<2.80E+01 0.00E+00 2.80E+01 Be-7 9.56E+01 1.57E+01 2.59E+01 K-40 Sample ID: 297111 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/24/2014

<4.53E+00 0.00E+00 4.53E+00 Mn-54

<4.43E+00 0.00E+00 4.43E+00 Co-58

<1.04E+01 0.00E+00 1.04E+01 Fe-59

<4.97E+00 0.00E+00 4.97E+00 Co-60

<8.22E+00 0.00E+00 8.22E+00 Zn-65

<9.54E+00 0.00E+00 9.54E+00 Zr-95

<4.98E+00 0.00E+00 4.98E+00 Nb-95

<1.40E+01 0.00E+00 1.40E+01 I-131

<4.18E+00 0.00E+00 4.18E+00 Cs-134

<5.33E+00 0.00E+00 5.33E+00 Cs-137

<9.64E+00 0.00E+00 9.64E+00 BaLa-140

<4.58E+01 0.00E+00 4.58E+01 Be-7 7.66E+01 3.06E+01 4.08E+01 K-40 Sample ID: 350537 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/22/2014

<2.47E+00 0.00E+00 2.47E+00 Mn-54

<2.53E+00 0.00E+00 2.53E+00 Co-58

<5.80E+00 0.00E+00 5.80E+00 Fe-59

<2.31E+00 0.00E+00 2.31E+00 Co-60

<5.05E+00 0.00E+00 5.05E+00 Zn-65

<5.53E+00 0.00E+00 5.53E+00 Zr-95

<3.09E+00 0.00E+00 3.09E+00 Nb-95

<1.02E+01 0.00E+00 1.02E+01 I-131

<1.88E+00 0.00E+00 1.88E+00 Cs-134

<2.21E+00 0.00E+00 2.21E+00 Cs-137

<6.63E+00 0.00E+00 6.63E+00 BaLa-140

<2.29E+01 0.00E+00 2.29E+01 Be-7 7.45E+01 2.89E+01 4.02E+01 K-40 Sample ID: 353383 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 8/19/2014

<3.57E+00 0.00E+00 3.57E+00 Mn-54

<4.19E+00 0.00E+00 4.19E+00 Co-58

<1.05E+01 0.00E+00 1.05E+01 Fe-59

<4.09E+00 0.00E+00 4.09E+00 Co-60

<9.90E+00 0.00E+00 9.90E+00 Zn-65

<9.95E+00 0.00E+00 9.95E+00 Zr-95

<6.05E+00 0.00E+00 6.05E+00 Nb-95

<1.14E+01 0.00E+00 1.14E+01 I-131

<3.96E+00 0.00E+00 3.96E+00 Cs-134

<5.08E+00 0.00E+00 5.08E+00 Cs-137

<6.65E+00 0.00E+00 6.65E+00 BaLa-140

<3.09E+01 0.00E+00 3.09E+01 Be-7 4.38E+01 3.08E+01 3.96E+01 K-40 Sample ID: 354220 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 8/19/2014 9.88E+02 1.40E+02 1.89E+02 H3SW Sample ID: 355063 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014

<2.34E+00 0.00E+00 2.34E+00 Mn-54

<2.62E+00 0.00E+00 2.62E+00 Co-58

<6.01E+00 0.00E+00 6.01E+00 Fe-59

<2.54E+00 0.00E+00 2.54E+00 Co-60

<4.78E+00 0.00E+00 4.78E+00 Zn-65

<4.71E+00 0.00E+00 4.71E+00 Zr-95

<3.26E+00 0.00E+00 3.26E+00 Nb-95

<1.20E+01 0.00E+00 1.20E+01 I-131

<2.57E+00 0.00E+00 2.57E+00 Cs-134

<2.27E+00 0.00E+00 2.27E+00 Cs-137 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 72 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 211 [ INDICATOR - ESE @ 4.06 miles ]

Sample ID: 355063 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014

<7.64E+00 0.00E+00 7.64E+00 BaLa-140

<2.08E+01 0.00E+00 2.08E+01 Be-7 8.29E+01 2.79E+01 3.72E+01 K-40 Sample ID: 357990 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 10/14/2014

<2.30E+00 0.00E+00 2.30E+00 Mn-54

<2.28E+00 0.00E+00 2.28E+00 Co-58

<4.15E+00 0.00E+00 4.15E+00 Fe-59

<2.08E+00 0.00E+00 2.08E+00 Co-60

<4.36E+00 0.00E+00 4.36E+00 Zn-65

<4.77E+00 0.00E+00 4.77E+00 Zr-95

<3.48E+00 0.00E+00 3.48E+00 Nb-95

<1.19E+01 0.00E+00 1.19E+01 I-131

<2.53E+00 0.00E+00 2.53E+00 Cs-134

<2.68E+00 0.00E+00 2.68E+00 Cs-137

<6.10E+00 0.00E+00 6.10E+00 BaLa-140

<2.66E+01 0.00E+00 2.66E+01 Be-7 4.17E+01 2.35E+01 3.36E+01 K-40 Sample ID: 360663 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 11/11/2014

<2.02E+00 0.00E+00 2.02E+00 Mn-54

<2.44E+00 0.00E+00 2.44E+00 Co-58

<6.52E+00 0.00E+00 6.52E+00 Fe-59

<2.48E+00 0.00E+00 2.48E+00 Co-60

<4.79E+00 0.00E+00 4.79E+00 Zn-65

<4.20E+00 0.00E+00 4.20E+00 Zr-95

<2.80E+00 0.00E+00 2.80E+00 Nb-95

<1.13E+01 0.00E+00 1.13E+01 I-131

<2.67E+00 0.00E+00 2.67E+00 Cs-134

<2.09E+00 0.00E+00 2.09E+00 Cs-137

<4.09E+00 0.00E+00 4.09E+00 BaLa-140

<1.94E+01 0.00E+00 1.94E+01 Be-7 3.51E+01 2.35E+01 3.44E+01 K-40 Sample ID: 363474 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 12/9/2014

<1.33E+00 0.00E+00 1.33E+00 Mn-54

<1.62E+00 0.00E+00 1.62E+00 Co-58

<3.92E+00 0.00E+00 3.92E+00 Fe-59

<1.42E+00 0.00E+00 1.42E+00 Co-60

<2.61E+00 0.00E+00 2.61E+00 Zn-65

<2.67E+00 0.00E+00 2.67E+00 Zr-95

<2.05E+00 0.00E+00 2.05E+00 Nb-95

<1.09E+01 0.00E+00 1.09E+01 I-131

<1.56E+00 0.00E+00 1.56E+00 Cs-134

<1.34E+00 0.00E+00 1.34E+00 Cs-137

<5.32E+00 0.00E+00 5.32E+00 BaLa-140

<1.48E+01 0.00E+00 1.48E+01 Be-7 3.12E+01 9.70E+00 1.20E+01 K-40 Sample ID: 364447 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 12/9/2014 6.06E+02 1.31E+02 1.92E+02 H3SW Sample Point 215 [ CONTROL - NNE @ 4.21 miles ]

Sample ID: 280926 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 1/7/2014

<2.92E+00 0.00E+00 2.92E+00 Mn-54

<3.93E+00 0.00E+00 3.93E+00 Co-58

<8.19E+00 0.00E+00 8.19E+00 Fe-59

<3.67E+00 0.00E+00 3.67E+00 Co-60

<6.03E+00 0.00E+00 6.03E+00 Zn-65

<6.38E+00 0.00E+00 6.38E+00 Zr-95

<4.39E+00 0.00E+00 4.39E+00 Nb-95

<1.37E+01 0.00E+00 1.37E+01 I-131

<3.55E+00 0.00E+00 3.55E+00 Cs-134

<3.36E+00 0.00E+00 3.36E+00 Cs-137

<7.15E+00 0.00E+00 7.15E+00 BaLa-140

<3.50E+01 0.00E+00 3.50E+01 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 73 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 215 [ CONTROL - NNE @ 4.21 miles ]

Sample ID: 280926 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 1/7/2014 1.45E+02 3.26E+01 3.08E+01 K-40 Sample ID: 283103 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 2/4/2014

<3.74E+00 0.00E+00 3.74E+00 Mn-54

<4.53E+00 0.00E+00 4.53E+00 Co-58

<9.90E+00 0.00E+00 9.90E+00 Fe-59

<3.97E+00 0.00E+00 3.97E+00 Co-60

<7.24E+00 0.00E+00 7.24E+00 Zn-65

<7.67E+00 0.00E+00 7.67E+00 Zr-95

<5.32E+00 0.00E+00 5.32E+00 Nb-95

<1.36E+01 0.00E+00 1.36E+01 I-131

<3.87E+00 0.00E+00 3.87E+00 Cs-134

<3.29E+00 0.00E+00 3.29E+00 Cs-137

<9.22E+00 0.00E+00 9.22E+00 BaLa-140

<3.98E+01 0.00E+00 3.98E+01 Be-7 2.09E+02 3.15E+01 3.81E+01 K-40 Sample ID: 284773 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/10/2013 - 3/4/2014

<1.45E+02 0.00E+00 1.89E+02 H3SW Sample ID: 285950 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 3/4/2014

<3.90E+00 0.00E+00 3.90E+00 Mn-54

<3.27E+00 0.00E+00 3.27E+00 Co-58

<8.69E+00 0.00E+00 8.69E+00 Fe-59

<5.53E+00 0.00E+00 5.53E+00 Co-60

<7.05E+00 0.00E+00 7.05E+00 Zn-65

<8.20E+00 0.00E+00 8.20E+00 Zr-95

<4.68E+00 0.00E+00 4.68E+00 Nb-95

<1.29E+01 0.00E+00 1.29E+01 I-131

<3.84E+00 0.00E+00 3.84E+00 Cs-134

<4.10E+00 0.00E+00 4.10E+00 Cs-137

<1.23E+01 0.00E+00 1.23E+01 BaLa-140

<4.02E+01 0.00E+00 4.02E+01 Be-7 3.42E+01 1.91E+01 4.00E+01 K-40 Sample ID: 289200 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 4/1/2014

<2.46E+00 0.00E+00 2.46E+00 Mn-54

<3.38E+00 0.00E+00 3.38E+00 Co-58

<7.98E+00 0.00E+00 7.98E+00 Fe-59

<4.07E+00 0.00E+00 4.07E+00 Co-60

<5.28E+00 0.00E+00 5.28E+00 Zn-65

<5.86E+00 0.00E+00 5.86E+00 Zr-95

<5.24E+00 0.00E+00 5.24E+00 Nb-95

<1.26E+01 0.00E+00 1.26E+01 I-131

<3.06E+00 0.00E+00 3.06E+00 Cs-134

<3.91E+00 0.00E+00 3.91E+00 Cs-137

<8.49E+00 0.00E+00 8.49E+00 BaLa-140

<3.19E+01 0.00E+00 3.19E+01 Be-7

<6.23E+01 0.00E+00 6.23E+01 K-40 Sample ID: 292879 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/29/2014

<4.86E+00 0.00E+00 4.86E+00 Mn-54

<4.11E+00 0.00E+00 4.11E+00 Co-58

<9.39E+00 0.00E+00 9.39E+00 Fe-59

<4.50E+00 0.00E+00 4.50E+00 Co-60

<9.17E+00 0.00E+00 9.17E+00 Zn-65

<7.27E+00 0.00E+00 7.27E+00 Zr-95

<4.77E+00 0.00E+00 4.77E+00 Nb-95

<1.42E+01 0.00E+00 1.42E+01 I-131

<4.12E+00 0.00E+00 4.12E+00 Cs-134

<4.18E+00 0.00E+00 4.18E+00 Cs-137

<9.12E+00 0.00E+00 9.12E+00 BaLa-140

<4.10E+01 0.00E+00 4.10E+01 Be-7 2.37E+02 2.75E+01 3.23E+01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 74 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 215 [ CONTROL - NNE @ 4.21 miles ]

Sample ID: 295306 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 5/28/2014 3.60E+02 6.23E+01 1.85E+02 H3SW Sample ID: 295630 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/29/2014 - 5/28/2014

<2.69E+00 0.00E+00 2.69E+00 Mn-54

<2.96E+00 0.00E+00 2.96E+00 Co-58

<7.22E+00 0.00E+00 7.22E+00 Fe-59

<3.34E+00 0.00E+00 3.34E+00 Co-60

<5.78E+00 0.00E+00 5.78E+00 Zn-65

<5.56E+00 0.00E+00 5.56E+00 Zr-95

<3.82E+00 0.00E+00 3.82E+00 Nb-95

<1.44E+01 0.00E+00 1.44E+01 I-131

<2.88E+00 0.00E+00 2.88E+00 Cs-134

<3.71E+00 0.00E+00 3.71E+00 Cs-137

<8.14E+00 0.00E+00 8.14E+00 BaLa-140

<2.81E+01 0.00E+00 2.81E+01 Be-7 1.13E+02 1.37E+01 2.86E+01 K-40 Sample ID: 297113 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 6/24/2014

<4.07E+00 0.00E+00 4.07E+00 Mn-54

<3.86E+00 0.00E+00 3.86E+00 Co-58

<9.73E+00 0.00E+00 9.73E+00 Fe-59

<4.70E+00 0.00E+00 4.70E+00 Co-60

<1.01E+01 0.00E+00 1.01E+01 Zn-65

<6.78E+00 0.00E+00 6.78E+00 Zr-95

<5.79E+00 0.00E+00 5.79E+00 Nb-95

<1.17E+01 0.00E+00 1.17E+01 I-131

<3.74E+00 0.00E+00 3.74E+00 Cs-134

<3.30E+00 0.00E+00 3.30E+00 Cs-137

<1.02E+01 0.00E+00 1.02E+01 BaLa-140

<3.73E+01 0.00E+00 3.73E+01 Be-7 8.60E+01 2.04E+01 4.03E+01 K-40 Sample ID: 350538 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/24/2014 - 7/22/2014

<2.15E+00 0.00E+00 2.15E+00 Mn-54

<2.47E+00 0.00E+00 2.47E+00 Co-58

<5.26E+00 0.00E+00 5.26E+00 Fe-59

<2.22E+00 0.00E+00 2.22E+00 Co-60

<5.06E+00 0.00E+00 5.06E+00 Zn-65

<4.62E+00 0.00E+00 4.62E+00 Zr-95

<3.11E+00 0.00E+00 3.11E+00 Nb-95

<1.17E+01 0.00E+00 1.17E+01 I-131

<2.02E+00 0.00E+00 2.02E+00 Cs-134

<2.51E+00 0.00E+00 2.51E+00 Cs-137

<5.96E+00 0.00E+00 5.96E+00 BaLa-140

<2.34E+01 0.00E+00 2.34E+01 Be-7 4.48E+01 2.44E+01 3.46E+01 K-40 Sample ID: 352240 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/22/2014 - 8/19/2014

<4.59E+00 0.00E+00 4.59E+00 Mn-54

<3.67E+00 0.00E+00 3.67E+00 Co-58

<6.15E+00 0.00E+00 6.15E+00 Fe-59

<3.66E+00 0.00E+00 3.66E+00 Co-60

<8.80E+00 0.00E+00 8.80E+00 Zn-65

<8.24E+00 0.00E+00 8.24E+00 Zr-95

<5.64E+00 0.00E+00 5.64E+00 Nb-95

<1.10E+01 0.00E+00 1.10E+01 I-131

<5.09E+00 0.00E+00 5.09E+00 Cs-134

<4.09E+00 0.00E+00 4.09E+00 Cs-137

<9.73E+00 0.00E+00 9.73E+00 BaLa-140

<2.10E+01 0.00E+00 2.10E+01 Be-7 4.05E+01 4.22E+01 6.67E+01 K-40 Sample ID: 354221 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/28/2014 - 8/19/2014 4.47E+02 1.25E+02 1.91E+02 H3SW Sample ID: 355066 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014

<4.12E+00 0.00E+00 4.12E+00 Mn-54 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 75 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: SURFACE WATER Concentration (Activity): pCi/l Sample Point 215 [ CONTROL - NNE @ 4.21 miles ]

Sample ID: 355066 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 9/16/2014

<4.13E+00 0.00E+00 4.13E+00 Co-58

<7.82E+00 0.00E+00 7.82E+00 Fe-59

<3.21E+00 0.00E+00 3.21E+00 Co-60

<6.43E+00 0.00E+00 6.43E+00 Zn-65

<6.77E+00 0.00E+00 6.77E+00 Zr-95

<5.21E+00 0.00E+00 5.21E+00 Nb-95

<1.20E+01 0.00E+00 1.20E+01 I-131

<3.68E+00 0.00E+00 3.68E+00 Cs-134

<3.99E+00 0.00E+00 3.99E+00 Cs-137

<1.01E+01 0.00E+00 1.01E+01 BaLa-140

<2.99E+01 0.00E+00 2.99E+01 Be-7 5.12E+01 3.25E+01 4.40E+01 K-40 Sample ID: 357991 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/16/2014 - 10/14/2014

<3.19E+00 0.00E+00 3.19E+00 Mn-54

<3.20E+00 0.00E+00 3.20E+00 Co-58

<7.01E+00 0.00E+00 7.01E+00 Fe-59

<2.79E+00 0.00E+00 2.79E+00 Co-60

<6.51E+00 0.00E+00 6.51E+00 Zn-65

<4.10E+00 0.00E+00 4.10E+00 Zr-95

<4.45E+00 0.00E+00 4.45E+00 Nb-95

<1.17E+01 0.00E+00 1.17E+01 I-131

<3.84E+00 0.00E+00 3.84E+00 Cs-134

<2.88E+00 0.00E+00 2.88E+00 Cs-137

<8.46E+00 0.00E+00 8.46E+00 BaLa-140

<2.90E+01 0.00E+00 2.90E+01 Be-7 5.33E+01 2.80E+01 3.50E+01 K-40 Sample ID: 360664 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/14/2014 - 11/11/2014

<2.62E+00 0.00E+00 2.62E+00 Mn-54

<3.05E+00 0.00E+00 3.05E+00 Co-58

<4.22E+00 0.00E+00 4.22E+00 Fe-59

<2.65E+00 0.00E+00 2.65E+00 Co-60

<4.33E+00 0.00E+00 4.33E+00 Zn-65

<4.84E+00 0.00E+00 4.84E+00 Zr-95

<3.34E+00 0.00E+00 3.34E+00 Nb-95

<1.07E+01 0.00E+00 1.07E+01 I-131

<2.94E+00 0.00E+00 2.94E+00 Cs-134

<2.56E+00 0.00E+00 2.56E+00 Cs-137

<4.65E+00 0.00E+00 4.65E+00 BaLa-140

<2.35E+01 0.00E+00 2.35E+01 Be-7 4.09E+01 2.25E+01 3.16E+01 K-40 Sample ID: 363475 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/11/2014 - 12/9/2014

<1.40E+00 0.00E+00 1.40E+00 Mn-54

<1.75E+00 0.00E+00 1.75E+00 Co-58

<4.21E+00 0.00E+00 4.21E+00 Fe-59

<1.33E+00 0.00E+00 1.33E+00 Co-60

<3.12E+00 0.00E+00 3.12E+00 Zn-65

<3.25E+00 0.00E+00 3.25E+00 Zr-95

<2.49E+00 0.00E+00 2.49E+00 Nb-95

<1.10E+01 0.00E+00 1.10E+01 I-131

<1.72E+00 0.00E+00 1.72E+00 Cs-134

<1.62E+00 0.00E+00 1.62E+00 Cs-137

<5.60E+00 0.00E+00 5.60E+00 BaLa-140

<1.63E+01 0.00E+00 1.63E+01 Be-7 3.68E+01 1.71E+01 2.45E+01 K-40 Sample ID: 364448 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/19/2014 - 12/9/2014 4.48E+02 1.26E+02 1.92E+02 H3SW Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

TLD RING TLD_INNER Sample ID: 286547 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.60 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

TLD RING TLD_INNER Sample ID: 296495 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 16.15 mR/Std Qtr Sample ID: 365504 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 17.08 mR/Std Qtr Sample ID: 362416 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.50 mR/Std Qtr Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

TLD RING TLD_INNER Sample ID: 286548 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.65 mR/Std Qtr Sample ID: 296496 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.12 mR/Std Qtr Sample ID: 365505 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 15.27 mR/Std Qtr Sample ID: 362417 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 19.83 mR/Std Qtr Sample Point 203 [ INDICATOR - ESE @ 0.38 miles ]

TLD RING TLD_INNER Sample ID: 286549 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 20.49 mR/Std Qtr Sample ID: 296497 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.32 mR/Std Qtr Sample ID: 365506 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.56 mR/Std Qtr Sample ID: 362418 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 19.28 mR/Std Qtr Sample Point 204 [ INDICATOR - SSW @ 0.48 miles ]

TLD RING TLD_INNER Sample ID: 286550 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.06 mR/Std Qtr Sample ID: 296498 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 12.82 mR/Std Qtr Sample ID: 365507 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 14.53 mR/Std Qtr Sample ID: 362419 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.80 mR/Std Qtr Sample Point 205 [ INDICATOR - SW @ 0.5 miles ]

TLD RING TLD_INNER Sample ID: 286551 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.79 mR/Std Qtr Sample ID: 296499 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.65 mR/Std Qtr Sample ID: 365508 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.85 mR/Std Qtr Sample ID: 362420 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.80 mR/Std Qtr Sample Point 206 [ INDICATOR - WNW @ 0.67 miles ]

TLD RING TLD_INNER Sample ID: 286552 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 23.83 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 206 [ INDICATOR - WNW @ 0.67 miles ]

TLD RING TLD_INNER Sample ID: 296500 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 20.82 mR/Std Qtr Sample ID: 365509 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 18.61 mR/Std Qtr Sample ID: 362421 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 19.40 mR/Std Qtr Sample Point 207 [ INDICATOR - NNW @ 0.95 miles ]

TLD RING TLD_INNER Sample ID: 286553 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 23.86 mR/Std Qtr Sample ID: 296501 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 20.92 mR/Std Qtr Sample ID: 365510 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 18.50 mR/Std Qtr Sample ID: 362422 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 19.83 mR/Std Qtr Sample Point 212 [ INDICATOR - E @ 3.32 miles ]

TLD RING TLD_SPEC Sample ID: 286554 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 18.78 mR/Std Qtr Sample ID: 296502 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.19 mR/Std Qtr Sample ID: 365511 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 14.61 mR/Std Qtr Sample ID: 362423 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 15.75 mR/Std Qtr Sample Point 217 [ CONTROL - SSE @ 10.3 miles ]

TLD RING TLD_CTRL Sample ID: 286555 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 16.49 mR/Std Qtr Sample ID: 296503 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 11.55 mR/Std Qtr Sample ID: 365512 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 10.55 mR/Std Qtr Sample ID: 362424 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 11.80 mR/Std Qtr Sample Point 222 [ INDICATOR - N @ 0.71 miles ]

TLD RING TLD_INNER Sample ID: 286532 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 21.03 mR/Std Qtr Sample ID: 296480 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.30 mR/Std Qtr Sample ID: 365513 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 15.47 mR/Std Qtr Sample ID: 362425 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.40 mR/Std Qtr Sample Point 223 [ INDICATOR - E @ 0.57 miles ]

TLD RING TLD_INNER Sample ID: 286533 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 21.61 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 223 [ INDICATOR - E @ 0.57 miles ]

TLD RING TLD_INNER Sample ID: 296481 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 19.04 mR/Std Qtr Sample ID: 365514 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 18.84 mR/Std Qtr Sample ID: 362426 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 18.83 mR/Std Qtr Sample Point 225 [ INDICATOR - SE @ 0.68 miles ]

TLD RING TLD_INNER Sample ID: 286534 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 21.86 mR/Std Qtr Sample ID: 296482 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 17.32 mR/Std Qtr Sample ID: 365515 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 17.63 mR/Std Qtr Sample ID: 362427 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 18.30 mR/Std Qtr Sample Point 226 [ INDICATOR - S @ 0.48 miles ]

TLD RING TLD_INNER Sample ID: 286556 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.63 mR/Std Qtr Sample ID: 296504 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 14.06 mR/Std Qtr Sample ID: 365516 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.02 mR/Std Qtr Sample ID: 362428 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 15.88 mR/Std Qtr Sample Point 227 [ INDICATOR - WSW @ 0.52 miles ]

TLD RING TLD_INNER Sample ID: 286535 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 20.78 mR/Std Qtr Sample ID: 296483 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.86 mR/Std Qtr Sample ID: 365517 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 15.94 mR/Std Qtr Sample ID: 362429 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 15.44 mR/Std Qtr Sample Point 228 [ INDICATOR - W @ 0.61 miles ]

TLD RING TLD_INNER Sample ID: 286536 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 20.84 mR/Std Qtr Sample ID: 296484 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.83 mR/Std Qtr Sample ID: 365518 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.97 mR/Std Qtr Sample ID: 362430 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.10 mR/Std Qtr Sample Point 229 [ INDICATOR - NW @ 0.84 miles ]

TLD RING TLD_INNER Sample ID: 286537 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 27.94 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 229 [ INDICATOR - NW @ 0.84 miles ]

TLD RING TLD_INNER Sample ID: 296485 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 18.90 mR/Std Qtr Sample ID: 365519 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 21.02 mR/Std Qtr Sample ID: 362431 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 21.60 mR/Std Qtr Sample Point 230 [ INDICATOR - N @ 4.37 miles ]

TLD RING TLD_OUTER Sample ID: 286538 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 15.14 mR/Std Qtr Sample ID: 296486 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 11.21 mR/Std Qtr Sample ID: 365520 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 12.39 mR/Std Qtr Sample ID: 362432 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 12.76 mR/Std Qtr Sample Point 231 [ INDICATOR - NNE @ 4.21 miles ]

TLD RING TLD_OUTER Sample ID: 286539 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 20.92 mR/Std Qtr Sample ID: 296487 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.77 mR/Std Qtr Sample ID: 365521 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 17.23 mR/Std Qtr Sample ID: 362433 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 17.69 mR/Std Qtr Sample Point 232 [ INDICATOR - NE @ 4.18 miles ]

TLD RING TLD_OUTER Sample ID: 286540 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 25.10 mR/Std Qtr Sample ID: 296488 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 18.25 mR/Std Qtr Sample ID: 365522 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 19.57 mR/Std Qtr Sample ID: 362434 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 23.38 mR/Std Qtr Sample Point 233 [ INDICATOR - ENE @ 3.95 miles ]

TLD RING TLD_OUTER Sample ID: 286541 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 16.13 mR/Std Qtr Sample ID: 296489 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 12.87 mR/Std Qtr Sample ID: 365523 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 13.55 mR/Std Qtr Sample ID: 362435 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 13.98 mR/Std Qtr Sample Point 234 [ INDICATOR - E @ 4.5 miles ]

TLD RING TLD_OUTER Sample ID: 286542 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.57 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 234 [ INDICATOR - E @ 4.5 miles ]

TLD RING TLD_OUTER Sample ID: 296490 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 16.32 mR/Std Qtr Sample ID: 365524 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.66 mR/Std Qtr Sample ID: 362436 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 18.68 mR/Std Qtr Sample Point 235 [ INDICATOR - ESE @ 4.07 miles ]

TLD RING TLD_OUTER Sample ID: 286543 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.58 mR/Std Qtr Sample ID: 296491 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 13.50 mR/Std Qtr Sample ID: 365525 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 14.93 mR/Std Qtr Sample ID: 362437 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 17.90 mR/Std Qtr Sample Point 236 [ INDICATOR - SE @ 4.25 miles ]

TLD RING TLD_OUTER Sample ID: 286544 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 24.15 mR/Std Qtr Sample ID: 296492 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 18.78 mR/Std Qtr Sample ID: 365526 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 19.72 mR/Std Qtr Sample ID: 362438 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 20.67 mR/Std Qtr Sample Point 237 [ INDICATOR - SSE @ 4.75 miles ]

TLD RING TLD_OUTER Sample ID: 286545 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 27.79 mR/Std Qtr Sample ID: 296493 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 17.84 mR/Std Qtr Sample ID: 365527 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 20.97 mR/Std Qtr Sample ID: 362439 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 23.28 mR/Std Qtr Sample Point 238 [ INDICATOR - S @ 4.02 miles ]

TLD RING TLD_OUTER Sample ID: 286546 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.40 mR/Std Qtr Sample ID: 296494 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 16.47 mR/Std Qtr Sample ID: 365528 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.83 mR/Std Qtr Sample ID: 362440 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.39 mR/Std Qtr Sample Point 239 [ INDICATOR - SSW @ 4.49 miles ]

TLD RING TLD_OUTER Sample ID: 286557 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 20.86 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 239 [ INDICATOR - SSW @ 4.49 miles ]

TLD RING TLD_OUTER Sample ID: 296505 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 19.51 mR/Std Qtr Sample ID: 362441 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 24.73 mR/Std Qtr Sample Point 240 [ INDICATOR - SW @ 4.07 miles ]

TLD RING TLD_OUTER Sample ID: 286558 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 14.09 mR/Std Qtr Sample ID: 296506 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 10.76 mR/Std Qtr Sample ID: 365530 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 12.48 mR/Std Qtr Sample ID: 362442 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 12.73 mR/Std Qtr Sample Point 241 [ INDICATOR - WSW @ 4.58 miles ]

TLD RING TLD_OUTER Sample ID: 286559 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 14.63 mR/Std Qtr Sample ID: 296507 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 11.20 mR/Std Qtr Sample ID: 365531 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 12.81 mR/Std Qtr Sample ID: 362443 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 13.86 mR/Std Qtr Sample Point 242 [ INDICATOR - W @ 4.56 miles ]

TLD RING TLD_OUTER Sample ID: 286560 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 18.75 mR/Std Qtr Sample ID: 296508 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 14.59 mR/Std Qtr Sample ID: 365532 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.01 mR/Std Qtr Sample ID: 362444 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 15.75 mR/Std Qtr Sample Point 243 [ INDICATOR - WNW @ 4.39 miles ]

TLD RING TLD_OUTER Sample ID: 286561 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 20.61 mR/Std Qtr Sample ID: 296509 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 14.87 mR/Std Qtr Sample ID: 365533 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 15.48 mR/Std Qtr Sample ID: 362445 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.78 mR/Std Qtr Sample Point 244 [ INDICATOR - NW @ 4.02 miles ]

TLD RING TLD_OUTER Sample ID: 286562 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 22.85 mR/Std Qtr Sample ID: 296510 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 17.76 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 82 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 244 [ INDICATOR - NW @ 4.02 miles ]

TLD RING TLD_OUTER Sample ID: 365534 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 18.57 mR/Std Qtr Sample ID: 362446 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 20.22 mR/Std Qtr Sample Point 245 [ INDICATOR - NNW @ 4.01 miles ]

TLD RING TLD_OUTER Sample ID: 286563 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 21.70 mR/Std Qtr Sample ID: 296511 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 14.28 mR/Std Qtr Sample ID: 365535 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 15.25 mR/Std Qtr Sample ID: 362447 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 18.12 mR/Std Qtr Sample Point 246 [ INDICATOR - ENE @ 7.87 miles ]

TLD RING TLD_SPEC Sample ID: 286610 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 17.48 mR/Std Qtr Sample ID: 296558 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 13.18 mR/Std Qtr Sample ID: 365536 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 13.44 mR/Std Qtr Sample ID: 362448 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 15.82 mR/Std Qtr Sample Point 247 [ CONTROL - ESE @ 7.33 miles ]

TLD RING TLD_CTRL Sample ID: 286447 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 15.04 mR/Std Qtr Sample ID: 296395 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 11.26 mR/Std Qtr Sample ID: 365537 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 13.77 mR/Std Qtr Sample ID: 362449 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 12.85 mR/Std Qtr Sample Point 248 [ INDICATOR - S @ 6.54 miles ]

TLD RING TLD_SPEC Sample ID: 286446 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 17.09 mR/Std Qtr Sample ID: 296394 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 13.17 mR/Std Qtr Sample ID: 365538 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 14.07 mR/Std Qtr Sample ID: 362450 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 13.53 mR/Std Qtr Sample Point 249 [ INDICATOR - S @ 7.17 miles ]

TLD RING TLD_SPEC Sample ID: 286448 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 22.65 mR/Std Qtr Sample ID: 296396 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 15.91 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 83 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 249 [ INDICATOR - S @ 7.17 miles ]

TLD RING TLD_SPEC Sample ID: 365539 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 15.97 mR/Std Qtr Sample ID: 362451 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 17.16 mR/Std Qtr Sample Point 250 [ INDICATOR - WSW @ 10.4 miles ]

TLD RING TLD_SPEC Sample ID: 286451 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 18.22 mR/Std Qtr Sample ID: 296399 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 14.73 mR/Std Qtr Sample ID: 365540 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.53 mR/Std Qtr Sample ID: 362452 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.35 mR/Std Qtr Sample Point 251 [ CONTROL - WNW @ 9.72 miles ]

TLD RING TLD_CTRL Sample ID: 286449 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 19.24 mR/Std Qtr Sample ID: 296397 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 14.96 mR/Std Qtr Sample ID: 365541 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 16.77 mR/Std Qtr Sample ID: 362453 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 16.10 mR/Std Qtr Sample Point 255 [ INDICATOR - ENE @ 0.61 miles ]

TLD RING TLD_INNER Sample ID: 286450 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 23.30 mR/Std Qtr Sample ID: 296398 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 18.24 mR/Std Qtr Sample ID: 365542 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 20.15 mR/Std Qtr Sample ID: 362454 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 21.76 mR/Std Qtr Sample Point 256 [ INDICATOR - SSE @ 0.58 miles ]

TLD RING TLD_INNER Sample ID: 286459 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 23.0 mR/Std Qtr Sample ID: 296407 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 18.11 mR/Std Qtr Sample ID: 365543 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 20.29 mR/Std Qtr Sample ID: 362455 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 21.42 mR/Std Qtr Sample Point 258 [ CONTROL - W @ 9.84 miles ]

TLD RING TLD_SPEC Sample ID: 286452 Nuclide Activity Sample Dates: 12/19/2013 - 3/20/2014 22.73 mR/Std Qtr Sample ID: 296400 Nuclide Activity Sample Dates: 3/20/2014 - 6/19/2014 17.52 mR/Std Qtr (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 84 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: TLD Concentration (Activity): mR/Standard Quarter Sample Point 258 [ CONTROL - W @ 9.84 miles ]

TLD RING TLD_SPEC Sample ID: 365544 Nuclide Activity Sample Dates: 6/19/2014 - 9/18/2014 18.04 mR/Std Qtr Sample ID: 362456 Nuclide Activity Sample Dates: 9/18/2014 - 12/18/2014 22.37 mR/Std Qtr Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 279588 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/7/2014 MIXEDBLV

<2.80E+01 0.00E+00 2.80E+01 I-131

<2.48E+01 0.00E+00 2.48E+01 Cs-134

<2.04E+01 0.00E+00 2.04E+01 Cs-137 4.43E+02 1.94E+02 2.03E+02 Be-7 4.04E+03 3.01E+02 2.00E+02 K-40 Sample ID: 281225 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/4/2014 MIXEDBLV

<3.42E+01 0.00E+00 3.42E+01 I-131

<3.51E+01 0.00E+00 3.51E+01 Cs-134

<3.42E+01 0.00E+00 3.42E+01 Cs-137 8.90E+02 1.48E+02 2.79E+02 Be-7 3.60E+03 3.71E+02 1.04E+02 K-40 Sample ID: 284406 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014 MIXEDBLV

<3.41E+01 0.00E+00 3.41E+01 I-131

<3.67E+01 0.00E+00 3.67E+01 Cs-134

<4.17E+01 0.00E+00 4.17E+01 Cs-137 4.85E+02 1.38E+02 2.77E+02 Be-7 3.01E+03 3.70E+02 7.14E+02 K-40 Sample ID: 287043 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/1/2014 MIXEDBLV

<2.08E+01 0.00E+00 2.08E+01 I-131

<2.26E+01 0.00E+00 2.26E+01 Cs-134

<3.03E+01 0.00E+00 3.03E+01 Cs-137 3.72E+02 7.07E+01 1.73E+02 Be-7 2.63E+03 2.24E+02 1.39E+02 K-40 Sample ID: 289844 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/6/2014 MIXEDBLV

<2.96E+01 0.00E+00 2.96E+01 I-131

<2.55E+01 0.00E+00 2.55E+01 Cs-134

<3.49E+01 0.00E+00 3.49E+01 Cs-137

<2.89E+02 0.00E+00 2.89E+02 Be-7 3.54E+03 2.88E+02 3.34E+02 K-40 Sample ID: 294848 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/3/2014 MIXEDBLV

<1.73E+01 0.00E+00 1.73E+01 I-131

<1.53E+01 0.00E+00 1.53E+01 Cs-134

<2.96E+01 0.00E+00 2.96E+01 Cs-137 2.45E+02 8.50E+01 1.81E+02 Be-7 4.31E+03 3.47E+02 2.75E+02 K-40 Sample ID: 296616 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/1/2014 MIXEDBLV

<3.33E+01 0.00E+00 3.33E+01 I-131

<3.62E+01 0.00E+00 3.62E+01 Cs-134

<5.17E+01 0.00E+00 5.17E+01 Cs-137 6.74E+02 1.56E+02 2.74E+02 Be-7 4.14E+03 4.51E+02 5.26E+02 K-40 Sample ID: 298135 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDBLV

<1.44E+01 0.00E+00 1.44E+01 Mn-54

<1.47E+01 0.00E+00 1.47E+01 Co-58

<3.09E+01 0.00E+00 3.09E+01 Fe-59

<1.62E+01 0.00E+00 1.62E+01 Co-60

<2.63E+01 0.00E+00 2.63E+01 Zn-65

<2.88E+01 0.00E+00 2.88E+01 Zr-95

<1.51E+01 0.00E+00 1.51E+01 Nb-95

<1.32E+01 0.00E+00 1.32E+01 I-131

<1.04E+01 0.00E+00 1.04E+01 Cs-134 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 85 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 200 [ INDICATOR - NNE @ 0.63 miles ]

Sample ID: 298135 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDBLV

<1.68E+01 0.00E+00 1.68E+01 Cs-137

<1.34E+01 0.00E+00 1.34E+01 BaLa-140 1.32E+03 2.10E+02 1.30E+02 Be-7 3.46E+03 5.00E+02 1.50E+02 K-40 Sample ID: 354397 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDBLV

<3.38E+01 0.00E+00 3.38E+01 Mn-54

<2.95E+01 0.00E+00 2.95E+01 Co-58

<8.02E+01 0.00E+00 8.02E+01 Fe-59

<4.20E+01 0.00E+00 4.20E+01 Co-60

<8.70E+01 0.00E+00 8.70E+01 Zn-65

<5.40E+01 0.00E+00 5.40E+01 Zr-95

<3.99E+01 0.00E+00 3.99E+01 Nb-95

<3.28E+01 0.00E+00 3.28E+01 I-131

<3.98E+01 0.00E+00 3.98E+01 Cs-134

<2.19E+01 0.00E+00 2.19E+01 Cs-137

<4.30E+01 0.00E+00 4.30E+01 BaLa-140 3.97E+02 2.80E+02 4.29E+02 Be-7 3.36E+03 7.66E+02 5.34E+02 K-40 Sample ID: 356983 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDBLV

<4.04E+01 0.00E+00 4.04E+01 Mn-54

<4.17E+01 0.00E+00 4.17E+01 Co-58

<7.24E+01 0.00E+00 7.24E+01 Fe-59

<2.67E+01 0.00E+00 2.67E+01 Co-60

<6.71E+01 0.00E+00 6.71E+01 Zn-65

<5.82E+01 0.00E+00 5.82E+01 Zr-95

<2.47E+01 0.00E+00 2.47E+01 Nb-95

<3.10E+01 0.00E+00 3.10E+01 I-131

<4.08E+01 0.00E+00 4.08E+01 Cs-134

<3.67E+01 0.00E+00 3.67E+01 Cs-137

<5.10E+01 0.00E+00 5.10E+01 BaLa-140 3.29E+02 3.12E+02 4.99E+02 Be-7 3.60E+03 8.34E+02 5.51E+02 K-40 Sample ID: 359971 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014 MIXEDBLV

<9.13E+00 0.00E+00 9.13E+00 Mn-54

<7.35E+00 0.00E+00 7.35E+00 Co-58

<1.79E+01 0.00E+00 1.79E+01 Fe-59

<9.49E+00 0.00E+00 9.49E+00 Co-60

<2.29E+01 0.00E+00 2.29E+01 Zn-65

<1.58E+01 0.00E+00 1.58E+01 Zr-95

<8.30E+00 0.00E+00 8.30E+00 Nb-95

<7.93E+00 0.00E+00 7.93E+00 I-131

<1.22E+01 0.00E+00 1.22E+01 Cs-134

<8.33E+00 0.00E+00 8.33E+00 Cs-137

<1.03E+01 0.00E+00 1.03E+01 BaLa-140 5.88E+02 1.02E+02 1.04E+02 Be-7 3.46E+03 3.75E+02 1.44E+02 K-40 Sample ID: 362724 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/2/2014 MIXEDBLV

<2.74E+01 0.00E+00 2.74E+01 Mn-54

<1.97E+01 0.00E+00 1.97E+01 Co-58

<7.78E+01 0.00E+00 7.78E+01 Fe-59

<3.59E+01 0.00E+00 3.59E+01 Co-60

<6.01E+01 0.00E+00 6.01E+01 Zn-65

<5.91E+01 0.00E+00 5.91E+01 Zr-95

<3.28E+01 0.00E+00 3.28E+01 Nb-95

<4.61E+01 0.00E+00 4.61E+01 I-131

<2.63E+01 0.00E+00 2.63E+01 Cs-134

<3.30E+01 0.00E+00 3.30E+01 Cs-137

<4.97E+01 0.00E+00 4.97E+01 BaLa-140 6.25E+02 2.74E+02 3.82E+02 Be-7 4.27E+03 7.15E+02 6.15E+01 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 86 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 279589 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/7/2014 MIXEDBLV

<3.82E+01 0.00E+00 3.82E+01 I-131

<3.68E+01 0.00E+00 3.68E+01 Cs-134

<4.84E+01 0.00E+00 4.84E+01 Cs-137 2.02E+03 2.26E+02 3.43E+02 Be-7 4.00E+03 4.65E+02 5.60E+02 K-40 Sample ID: 281226 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/4/2014 MIXEDBLV

<3.24E+01 0.00E+00 3.24E+01 I-131

<2.47E+01 0.00E+00 2.47E+01 Cs-134

<4.24E+01 0.00E+00 4.24E+01 Cs-137 9.47E+02 1.39E+02 2.21E+02 Be-7 3.38E+03 3.19E+02 3.00E+02 K-40 Sample ID: 284407 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014 MIXEDBLV

<2.25E+01 0.00E+00 2.25E+01 I-131

<2.36E+01 0.00E+00 2.36E+01 Cs-134

<2.93E+01 0.00E+00 2.93E+01 Cs-137 8.04E+02 1.26E+02 1.70E+02 Be-7 3.66E+03 2.67E+02 2.50E+02 K-40 Sample ID: 287044 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/1/2014 MIXEDBLV

<4.93E+01 0.00E+00 4.93E+01 I-131

<3.79E+01 0.00E+00 3.79E+01 Cs-134

<6.82E+01 0.00E+00 6.82E+01 Cs-137 1.46E+03 2.44E+02 4.41E+02 Be-7 3.75E+03 5.00E+02 6.03E+02 K-40 Sample ID: 289845 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/6/2014 MIXEDBLV

<2.60E+01 0.00E+00 2.60E+01 I-131

<2.33E+01 0.00E+00 2.33E+01 Cs-134

<3.41E+01 0.00E+00 3.41E+01 Cs-137 3.80E+02 8.62E+01 2.02E+02 Be-7 2.78E+03 3.57E+02 5.11E+02 K-40 Sample ID: 294849 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/3/2014 MIXEDBLV

<2.25E+01 0.00E+00 2.25E+01 I-131

<1.26E+01 0.00E+00 1.26E+01 Cs-134 4.18E+01 7.52E+00 1.28E+01 Cs-137 6.10E+02 7.92E+01 1.19E+02 Be-7 3.47E+03 1.84E+02 1.51E+02 K-40 Sample ID: 296617 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/1/2014 MIXEDBLV

<3.13E+01 0.00E+00 3.13E+01 I-131

<1.98E+01 0.00E+00 1.98E+01 Cs-134 3.32E+01 1.92E+01 2.64E+01 Cs-137 5.31E+02 1.28E+02 2.05E+02 Be-7 3.18E+03 3.08E+02 2.92E+02 K-40 Sample ID: 298136 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDBLV

<2.65E+01 0.00E+00 2.65E+01 Mn-54

<1.97E+01 0.00E+00 1.97E+01 Co-58

<5.42E+01 0.00E+00 5.42E+01 Fe-59

<3.13E+01 0.00E+00 3.13E+01 Co-60

<6.72E+01 0.00E+00 6.72E+01 Zn-65

<4.54E+01 0.00E+00 4.54E+01 Zr-95

<2.91E+01 0.00E+00 2.91E+01 Nb-95

<2.15E+01 0.00E+00 2.15E+01 I-131

<2.49E+01 0.00E+00 2.49E+01 Cs-134 5.27E+01 2.54E+01 3.30E+01 Cs-137

<3.02E+01 0.00E+00 3.02E+01 BaLa-140 1.79E+03 3.54E+02 3.31E+02 Be-7 2.63E+03 5.31E+02 6.05E+01 K-40 Sample ID: 354398 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDBLV

<1.78E+01 0.00E+00 1.78E+01 Mn-54

<2.12E+01 0.00E+00 2.12E+01 Co-58

<5.48E+01 0.00E+00 5.48E+01 Fe-59 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 87 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 201 [ INDICATOR - NE @ 0.53 miles ]

Sample ID: 354398 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDBLV

<3.15E+01 0.00E+00 3.15E+01 Co-60

<4.78E+01 0.00E+00 4.78E+01 Zn-65

<3.52E+01 0.00E+00 3.52E+01 Zr-95

<2.24E+01 0.00E+00 2.24E+01 Nb-95

<2.41E+01 0.00E+00 2.41E+01 I-131

<2.92E+01 0.00E+00 2.92E+01 Cs-134 5.86E+01 3.10E+01 4.55E+01 Cs-137

<3.69E+01 0.00E+00 3.69E+01 BaLa-140 1.73E+03 3.46E+02 3.75E+02 Be-7 2.69E+03 4.87E+02 4.73E+01 K-40 Sample ID: 356984 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDBLV

<2.57E+01 0.00E+00 2.57E+01 Mn-54

<1.99E+01 0.00E+00 1.99E+01 Co-58

<3.85E+01 0.00E+00 3.85E+01 Fe-59

<2.66E+01 0.00E+00 2.66E+01 Co-60

<4.61E+01 0.00E+00 4.61E+01 Zn-65

<4.96E+01 0.00E+00 4.96E+01 Zr-95

<2.52E+01 0.00E+00 2.52E+01 Nb-95

<2.28E+01 0.00E+00 2.28E+01 I-131

<2.64E+01 0.00E+00 2.64E+01 Cs-134

<2.80E+01 0.00E+00 2.80E+01 Cs-137

<2.74E+01 0.00E+00 2.74E+01 BaLa-140 1.77E+03 3.22E+02 2.94E+02 Be-7 3.31E+03 5.94E+02 3.76E+02 K-40 Sample ID: 359972 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014 MIXEDBLV

<9.50E+00 0.00E+00 9.50E+00 Mn-54

<8.31E+00 0.00E+00 8.31E+00 Co-58

<1.82E+01 0.00E+00 1.82E+01 Fe-59

<1.10E+01 0.00E+00 1.10E+01 Co-60

<2.12E+01 0.00E+00 2.12E+01 Zn-65

<1.44E+01 0.00E+00 1.44E+01 Zr-95

<8.82E+00 0.00E+00 8.82E+00 Nb-95

<8.61E+00 0.00E+00 8.61E+00 I-131

<1.39E+01 0.00E+00 1.39E+01 Cs-134 1.72E+01 1.07E+01 1.65E+01 Cs-137

<1.25E+01 0.00E+00 1.25E+01 BaLa-140 1.17E+03 1.61E+02 1.30E+02 Be-7 3.14E+03 3.73E+02 2.25E+02 K-40 Sample ID: 362725 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/2/2014 MIXEDBLV

<1.01E+01 0.00E+00 1.01E+01 Mn-54

<1.04E+01 0.00E+00 1.04E+01 Co-58

<2.71E+01 0.00E+00 2.71E+01 Fe-59

<1.32E+01 0.00E+00 1.32E+01 Co-60

<2.35E+01 0.00E+00 2.35E+01 Zn-65

<2.14E+01 0.00E+00 2.14E+01 Zr-95

<1.49E+01 0.00E+00 1.49E+01 Nb-95

<4.80E+01 0.00E+00 4.80E+01 I-131

<1.36E+01 0.00E+00 1.36E+01 Cs-134 1.94E+01 1.13E+01 1.78E+01 Cs-137

<3.16E+01 0.00E+00 3.16E+01 BaLa-140 3.04E+03 3.16E+02 1.80E+02 Be-7 4.18E+03 4.21E+02 1.81E+02 K-40 Sample Point 222 [ INDICATOR - N @ 0.71 miles ]

Sample ID: 279590 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/7/2014 MIXEDBLV

<5.52E+01 0.00E+00 5.52E+01 I-131

<4.34E+01 0.00E+00 4.34E+01 Cs-134

<6.85E+01 0.00E+00 6.85E+01 Cs-137 1.21E+03 2.18E+02 3.94E+02 Be-7 2.69E+03 4.16E+02 1.73E+02 K-40 Sample ID: 281227 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/4/2014 MIXEDBLV

<5.27E+01 0.00E+00 5.27E+01 I-131 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 88 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 222 [ INDICATOR - N @ 0.71 miles ]

Sample ID: 281227 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/4/2014 MIXEDBLV

<1.87E+01 0.00E+00 1.87E+01 Cs-134

<1.98E+01 0.00E+00 1.98E+01 Cs-137 7.66E+02 1.13E+02 1.75E+02 Be-7 2.61E+03 1.76E+02 2.00E+02 K-40 Sample ID: 284408 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014 MIXEDBLV

<5.20E+01 0.00E+00 5.20E+01 I-131

<5.20E+01 0.00E+00 5.20E+01 Cs-134

<5.24E+01 0.00E+00 5.24E+01 Cs-137 8.10E+02 1.75E+02 3.62E+02 Be-7 2.93E+03 3.64E+02 4.26E+02 K-40 Sample ID: 287045 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/1/2014 MIXEDBLV

<5.17E+01 0.00E+00 5.17E+01 I-131

<4.42E+01 0.00E+00 4.42E+01 Cs-134

<5.66E+01 0.00E+00 5.66E+01 Cs-137 5.72E+02 2.22E+02 3.76E+02 Be-7 4.40E+03 4.56E+02 5.42E+02 K-40 Sample ID: 289846 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/6/2014 MIXEDBLV

<3.07E+01 0.00E+00 3.07E+01 I-131

<2.93E+01 0.00E+00 2.93E+01 Cs-134

<3.15E+01 0.00E+00 3.15E+01 Cs-137 3.39E+02 1.22E+02 2.57E+02 Be-7 3.11E+03 3.61E+02 3.24E+02 K-40 Sample ID: 294850 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/3/2014 MIXEDBLV

<3.76E+01 0.00E+00 3.76E+01 I-131

<3.21E+01 0.00E+00 3.21E+01 Cs-134

<4.06E+01 0.00E+00 4.06E+01 Cs-137 2.51E+02 1.24E+02 2.74E+02 Be-7 3.86E+03 4.58E+02 4.60E+02 K-40 Sample ID: 296618 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/1/2014 MIXEDBLV

<3.62E+01 0.00E+00 3.62E+01 I-131

<3.01E+01 0.00E+00 3.01E+01 Cs-134

<3.62E+01 0.00E+00 3.62E+01 Cs-137 7.50E+02 1.23E+02 2.65E+02 Be-7 2.10E+03 3.72E+02 5.30E+02 K-40 Sample ID: 298137 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDBLV

<3.01E+01 0.00E+00 3.01E+01 Mn-54

<2.79E+01 0.00E+00 2.79E+01 Co-58

<5.47E+01 0.00E+00 5.47E+01 Fe-59

<4.51E+01 0.00E+00 4.51E+01 Co-60

<7.73E+01 0.00E+00 7.73E+01 Zn-65

<4.80E+01 0.00E+00 4.80E+01 Zr-95

<2.48E+01 0.00E+00 2.48E+01 Nb-95

<2.29E+01 0.00E+00 2.29E+01 I-131

<2.57E+01 0.00E+00 2.57E+01 Cs-134

<3.33E+01 0.00E+00 3.33E+01 Cs-137

<2.85E+01 0.00E+00 2.85E+01 BaLa-140 1.42E+03 3.32E+02 3.12E+02 Be-7 1.99E+03 5.71E+02 4.72E+02 K-40 Sample ID: 354399 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDBLV

<2.65E+01 0.00E+00 2.65E+01 Mn-54

<2.37E+01 0.00E+00 2.37E+01 Co-58

<4.56E+01 0.00E+00 4.56E+01 Fe-59

<3.54E+01 0.00E+00 3.54E+01 Co-60

<6.93E+01 0.00E+00 6.93E+01 Zn-65

<4.39E+01 0.00E+00 4.39E+01 Zr-95

<2.58E+01 0.00E+00 2.58E+01 Nb-95

<2.34E+01 0.00E+00 2.34E+01 I-131

<3.66E+01 0.00E+00 3.66E+01 Cs-134

<2.24E+01 0.00E+00 2.24E+01 Cs-137

<2.20E+01 0.00E+00 2.20E+01 BaLa-140 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 89 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 222 [ INDICATOR - N @ 0.71 miles ]

Sample ID: 354399 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDBLV 8.09E+02 2.30E+02 2.69E+02 Be-7 2.77E+03 5.47E+02 3.61E+02 K-40 Sample ID: 356985 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDBLV

<2.97E+01 0.00E+00 2.97E+01 Mn-54

<2.67E+01 0.00E+00 2.67E+01 Co-58

<4.84E+01 0.00E+00 4.84E+01 Fe-59

<3.14E+01 0.00E+00 3.14E+01 Co-60

<5.76E+01 0.00E+00 5.76E+01 Zn-65

<4.27E+01 0.00E+00 4.27E+01 Zr-95

<2.47E+01 0.00E+00 2.47E+01 Nb-95

<2.03E+01 0.00E+00 2.03E+01 I-131

<3.03E+01 0.00E+00 3.03E+01 Cs-134

<2.79E+01 0.00E+00 2.79E+01 Cs-137

<3.21E+01 0.00E+00 3.21E+01 BaLa-140 7.35E+02 2.47E+02 3.12E+02 Be-7 2.12E+03 4.95E+02 3.72E+02 K-40 Sample ID: 359973 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014 MIXEDBLV

<1.78E+01 0.00E+00 1.78E+01 Mn-54

<1.63E+01 0.00E+00 1.63E+01 Co-58

<5.13E+01 0.00E+00 5.13E+01 Fe-59

<1.97E+01 0.00E+00 1.97E+01 Co-60

<5.32E+01 0.00E+00 5.32E+01 Zn-65

<3.42E+01 0.00E+00 3.42E+01 Zr-95

<1.80E+01 0.00E+00 1.80E+01 Nb-95

<1.73E+01 0.00E+00 1.73E+01 I-131

<2.47E+01 0.00E+00 2.47E+01 Cs-134

<2.38E+01 0.00E+00 2.38E+01 Cs-137

<2.15E+01 0.00E+00 2.15E+01 BaLa-140 5.68E+02 1.73E+02 1.82E+02 Be-7 2.41E+03 4.71E+02 1.86E+02 K-40 Sample ID: 362726 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/2/2014 MIXEDBLV

<2.65E+01 0.00E+00 2.65E+01 Mn-54

<3.12E+01 0.00E+00 3.12E+01 Co-58

<6.97E+01 0.00E+00 6.97E+01 Fe-59

<1.99E+01 0.00E+00 1.99E+01 Co-60

<6.42E+01 0.00E+00 6.42E+01 Zn-65

<6.08E+01 0.00E+00 6.08E+01 Zr-95

<3.03E+01 0.00E+00 3.03E+01 Nb-95

<4.51E+01 0.00E+00 4.51E+01 I-131

<2.74E+01 0.00E+00 2.74E+01 Cs-134

<3.20E+01 0.00E+00 3.20E+01 Cs-137

<3.67E+01 0.00E+00 3.67E+01 BaLa-140 3.59E+02 2.07E+02 3.11E+02 Be-7 2.45E+03 5.14E+02 4.52E+02 K-40 Sample Point 226 [ INDICATOR - S @ 0.48 miles ]

Sample ID: 279591 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/7/2014 MIXEDBLV

<3.60E+01 0.00E+00 3.60E+01 I-131

<3.04E+01 0.00E+00 3.04E+01 Cs-134

<3.04E+01 0.00E+00 3.04E+01 Cs-137 1.58E+03 1.58E+02 2.34E+02 Be-7 4.15E+03 3.94E+02 2.73E+02 K-40 Sample ID: 281228 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/4/2014 MIXEDBLV

<4.61E+01 0.00E+00 4.61E+01 I-131

<4.53E+01 0.00E+00 4.53E+01 Cs-134

<4.58E+01 0.00E+00 4.58E+01 Cs-137 7.20E+02 1.80E+02 3.35E+02 Be-7 5.59E+03 5.35E+02 1.39E+02 K-40 Sample ID: 284409 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014 MIXEDBLV

<2.94E+01 0.00E+00 2.94E+01 I-131

<3.22E+01 0.00E+00 3.22E+01 Cs-134 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 90 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 226 [ INDICATOR - S @ 0.48 miles ]

Sample ID: 284409 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014 MIXEDBLV

<3.84E+01 0.00E+00 3.84E+01 Cs-137 7.27E+02 1.47E+02 2.55E+02 Be-7 3.67E+03 3.48E+02 3.41E+02 K-40 Sample ID: 287046 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/1/2014 MIXEDBLV

<3.32E+01 0.00E+00 3.32E+01 I-131

<2.94E+01 0.00E+00 2.94E+01 Cs-134

<3.52E+01 0.00E+00 3.52E+01 Cs-137 7.96E+02 1.38E+02 2.74E+02 Be-7 2.75E+03 3.96E+02 5.99E+02 K-40 Sample ID: 289847 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/6/2014 MIXEDBLV

<2.88E+01 0.00E+00 2.88E+01 I-131

<2.93E+01 0.00E+00 2.93E+01 Cs-134

<2.99E+01 0.00E+00 2.99E+01 Cs-137 3.95E+02 1.26E+02 2.01E+02 Be-7 3.67E+03 4.11E+02 2.90E+02 K-40 Sample ID: 294851 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/3/2014 MIXEDBLV

<3.63E+01 0.00E+00 3.63E+01 I-131

<3.40E+01 0.00E+00 3.40E+01 Cs-134

<3.06E+01 0.00E+00 3.06E+01 Cs-137 2.43E+02 1.18E+02 2.31E+02 Be-7 2.93E+03 3.58E+02 2.84E+02 K-40 Sample ID: 296619 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/1/2014 MIXEDBLV

<3.56E+01 0.00E+00 3.56E+01 I-131

<3.56E+01 0.00E+00 3.56E+01 Cs-134

<4.12E+01 0.00E+00 4.12E+01 Cs-137 5.93E+02 1.55E+02 3.20E+02 Be-7 3.41E+03 4.25E+02 4.41E+02 K-40 Sample ID: 298138 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDBLV

<2.54E+01 0.00E+00 2.54E+01 Mn-54

<2.40E+01 0.00E+00 2.40E+01 Co-58

<5.97E+01 0.00E+00 5.97E+01 Fe-59

<3.41E+01 0.00E+00 3.41E+01 Co-60

<5.24E+01 0.00E+00 5.24E+01 Zn-65

<5.46E+01 0.00E+00 5.46E+01 Zr-95

<3.03E+01 0.00E+00 3.03E+01 Nb-95

<2.74E+01 0.00E+00 2.74E+01 I-131

<2.69E+01 0.00E+00 2.69E+01 Cs-134

<3.17E+01 0.00E+00 3.17E+01 Cs-137

<2.00E+01 0.00E+00 2.00E+01 BaLa-140 1.33E+03 3.28E+02 3.81E+02 Be-7 4.96E+03 7.87E+02 2.77E+02 K-40 Sample ID: 354400 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDBLV

<1.75E+01 0.00E+00 1.75E+01 Mn-54

<2.02E+01 0.00E+00 2.02E+01 Co-58

<4.44E+01 0.00E+00 4.44E+01 Fe-59

<1.89E+01 0.00E+00 1.89E+01 Co-60

<4.46E+01 0.00E+00 4.46E+01 Zn-65

<3.06E+01 0.00E+00 3.06E+01 Zr-95

<2.45E+01 0.00E+00 2.45E+01 Nb-95

<4.47E+01 0.00E+00 4.47E+01 I-131

<2.05E+01 0.00E+00 2.05E+01 Cs-134

<1.98E+01 0.00E+00 1.98E+01 Cs-137

<4.05E+01 0.00E+00 4.05E+01 BaLa-140 8.69E+02 2.08E+02 2.56E+02 Be-7 4.66E+03 5.84E+02 2.77E+02 K-40 Sample ID: 356986 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDBLV

<3.89E+01 0.00E+00 3.89E+01 Mn-54

<4.33E+01 0.00E+00 4.33E+01 Co-58

<9.47E+01 0.00E+00 9.47E+01 Fe-59

<5.43E+01 0.00E+00 5.43E+01 Co-60 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 91 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 226 [ INDICATOR - S @ 0.48 miles ]

Sample ID: 356986 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDBLV

<1.13E+02 0.00E+00 1.13E+02 Zn-65

<5.06E+01 0.00E+00 5.06E+01 Zr-95

<4.93E+01 0.00E+00 4.93E+01 Nb-95

<3.46E+01 0.00E+00 3.46E+01 I-131

<4.36E+01 0.00E+00 4.36E+01 Cs-134

<3.17E+01 0.00E+00 3.17E+01 Cs-137

<6.53E+01 0.00E+00 6.53E+01 BaLa-140 8.90E+02 3.71E+02 4.91E+02 Be-7 4.82E+03 1.01E+03 5.12E+02 K-40 Sample ID: 359974 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014 MIXEDBLV

<2.62E+01 0.00E+00 2.62E+01 Mn-54

<1.73E+01 0.00E+00 1.73E+01 Co-58

<3.70E+01 0.00E+00 3.70E+01 Fe-59

<1.58E+01 0.00E+00 1.58E+01 Co-60

<5.36E+01 0.00E+00 5.36E+01 Zn-65

<3.33E+01 0.00E+00 3.33E+01 Zr-95

<1.76E+01 0.00E+00 1.76E+01 Nb-95

<1.99E+01 0.00E+00 1.99E+01 I-131

<2.47E+01 0.00E+00 2.47E+01 Cs-134

<1.80E+01 0.00E+00 1.80E+01 Cs-137

<2.59E+01 0.00E+00 2.59E+01 BaLa-140 7.14E+02 2.19E+02 2.70E+02 Be-7 4.86E+03 7.02E+02 2.09E+02 K-40 Sample ID: 362727 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/2/2014 MIXEDBLV

<3.03E+01 0.00E+00 3.03E+01 Mn-54

<2.00E+01 0.00E+00 2.00E+01 Co-58

<5.72E+01 0.00E+00 5.72E+01 Fe-59

<4.24E+01 0.00E+00 4.24E+01 Co-60

<7.06E+01 0.00E+00 7.06E+01 Zn-65

<5.23E+01 0.00E+00 5.23E+01 Zr-95

<3.04E+01 0.00E+00 3.04E+01 Nb-95

<2.31E+01 0.00E+00 2.31E+01 I-131

<4.21E+01 0.00E+00 4.21E+01 Cs-134

<3.89E+01 0.00E+00 3.89E+01 Cs-137

<2.41E+01 0.00E+00 2.41E+01 BaLa-140 1.21E+03 3.29E+02 3.84E+02 Be-7 4.18E+03 7.59E+02 4.21E+02 K-40 Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 279593 Nuclide Activity Sigma Error LLD 1

Sample Dates: 1/7/2014 - 1/7/2014 MIXEDBLV

<3.02E+01 0.00E+00 3.02E+01 I-131

<3.44E+01 0.00E+00 3.44E+01 Cs-134

<4.86E+01 0.00E+00 4.86E+01 Cs-137 1.34E+03 1.64E+02 2.97E+02 Be-7 3.67E+03 4.26E+02 3.23E+02 K-40 Sample ID: 281229 Nuclide Activity Sigma Error LLD 1

Sample Dates: 2/4/2014 - 2/4/2014 MIXEDBLV

<3.30E+01 0.00E+00 3.30E+01 I-131

<4.48E+01 0.00E+00 4.48E+01 Cs-134

<4.49E+01 0.00E+00 4.49E+01 Cs-137 6.90E+02 2.17E+02 3.41E+02 Be-7 4.22E+03 4.88E+02 4.48E+02 K-40 Sample ID: 284433 Nuclide Activity Sigma Error LLD 1

Sample Dates: 3/4/2014 - 3/4/2014 MIXEDBLV

<3.49E+01 0.00E+00 3.49E+01 I-131

<2.78E+01 0.00E+00 2.78E+01 Cs-134

<2.90E+01 0.00E+00 2.90E+01 Cs-137 6.20E+02 1.63E+02 2.84E+02 Be-7 3.78E+03 3.41E+02 3.59E+02 K-40 Sample ID: 287074 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/1/2014 MIXEDBLV

<4.45E+01 0.00E+00 4.45E+01 I-131

<4.02E+01 0.00E+00 4.02E+01 Cs-134

<4.74E+01 0.00E+00 4.74E+01 Cs-137 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 92 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 287074 Nuclide Activity Sigma Error LLD 1

Sample Dates: 4/1/2014 - 4/1/2014 MIXEDBLV 1.56E+03 2.37E+02 3.70E+02 Be-7 6.04E+03 5.75E+02 5.52E+02 K-40 Sample ID: 289849 Nuclide Activity Sigma Error LLD 1

Sample Dates: 5/6/2014 - 5/6/2014 MIXEDBLV

<1.74E+01 0.00E+00 1.74E+01 I-131

<1.42E+01 0.00E+00 1.42E+01 Cs-134

<1.88E+01 0.00E+00 1.88E+01 Cs-137 3.87E+02 7.96E+01 1.26E+02 Be-7 3.93E+03 2.38E+02 1.44E+02 K-40 Sample ID: 294853 Nuclide Activity Sigma Error LLD 1

Sample Dates: 6/3/2014 - 6/3/2014 MIXEDBLV

<2.63E+01 0.00E+00 2.63E+01 I-131

<2.23E+01 0.00E+00 2.23E+01 Cs-134

<2.58E+01 0.00E+00 2.58E+01 Cs-137 4.55E+02 1.14E+02 2.08E+02 Be-7 4.68E+03 3.68E+02 3.76E+02 K-40 Sample ID: 296621 Nuclide Activity Sigma Error LLD 1

Sample Dates: 7/1/2014 - 7/1/2014 MIXEDBLV

<3.75E+01 0.00E+00 3.75E+01 I-131

<2.94E+01 0.00E+00 2.94E+01 Cs-134

<4.46E+01 0.00E+00 4.46E+01 Cs-137 1.40E+03 2.00E+02 2.88E+02 Be-7 3.10E+03 3.73E+02 4.02E+02 K-40 Sample ID: 298140 Nuclide Activity Sigma Error LLD 1

Sample Dates: 8/5/2014 - 8/5/2014 MIXEDBLV

<2.44E+01 0.00E+00 2.44E+01 Mn-54

<1.93E+01 0.00E+00 1.93E+01 Co-58

<5.49E+01 0.00E+00 5.49E+01 Fe-59

<3.44E+01 0.00E+00 3.44E+01 Co-60

<4.32E+01 0.00E+00 4.32E+01 Zn-65

<3.70E+01 0.00E+00 3.70E+01 Zr-95

<1.96E+01 0.00E+00 1.96E+01 Nb-95

<2.35E+01 0.00E+00 2.35E+01 I-131

<2.18E+01 0.00E+00 2.18E+01 Cs-134

<2.90E+01 0.00E+00 2.90E+01 Cs-137

<2.59E+01 0.00E+00 2.59E+01 BaLa-140 1.84E+03 3.41E+02 3.16E+02 Be-7 2.62E+03 5.44E+02 4.17E+02 K-40 Sample ID: 354401 Nuclide Activity Sigma Error LLD 1

Sample Dates: 9/3/2014 - 9/3/2014 MIXEDBLV

<3.85E+01 0.00E+00 3.85E+01 Mn-54

<3.05E+01 0.00E+00 3.05E+01 Co-58

<6.71E+01 0.00E+00 6.71E+01 Fe-59

<3.82E+01 0.00E+00 3.82E+01 Co-60

<5.47E+01 0.00E+00 5.47E+01 Zn-65

<6.29E+01 0.00E+00 6.29E+01 Zr-95

<2.93E+01 0.00E+00 2.93E+01 Nb-95

<2.84E+01 0.00E+00 2.84E+01 I-131

<4.69E+01 0.00E+00 4.69E+01 Cs-134

<3.47E+01 0.00E+00 3.47E+01 Cs-137

<2.85E+01 0.00E+00 2.85E+01 BaLa-140 8.65E+02 3.06E+02 4.07E+02 Be-7 4.58E+03 8.46E+02 6.45E+02 K-40 Sample ID: 356987 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDBLV

<2.08E+01 0.00E+00 2.08E+01 Mn-54

<1.72E+01 0.00E+00 1.72E+01 Co-58

<3.91E+01 0.00E+00 3.91E+01 Fe-59

<2.31E+01 0.00E+00 2.31E+01 Co-60

<4.08E+01 0.00E+00 4.08E+01 Zn-65

<3.54E+01 0.00E+00 3.54E+01 Zr-95

<2.10E+01 0.00E+00 2.10E+01 Nb-95

<2.77E+01 0.00E+00 2.77E+01 I-131

<2.30E+01 0.00E+00 2.30E+01 Cs-134

<2.01E+01 0.00E+00 2.01E+01 Cs-137

<2.51E+01 0.00E+00 2.51E+01 BaLa-140 1.07E+03 2.13E+02 2.49E+02 Be-7 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 93 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

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

Media Type: VEGETATION Concentration (Activity): pCi/kg Sample Point 258 [ CONTROL - W @ 9.84 miles ]

Sample ID: 356987 Nuclide Activity Sigma Error LLD 1

Sample Dates: 10/7/2014 - 10/7/2014 MIXEDBLV 3.84E+03 5.01E+02 3.11E+02 K-40 Sample ID: 359975 Nuclide Activity Sigma Error LLD 1

Sample Dates: 11/4/2014 - 11/4/2014 MIXEDBLV

<1.40E+01 0.00E+00 1.40E+01 Mn-54

<1.24E+01 0.00E+00 1.24E+01 Co-58

<2.11E+01 0.00E+00 2.11E+01 Fe-59

<1.41E+01 0.00E+00 1.41E+01 Co-60

<2.71E+01 0.00E+00 2.71E+01 Zn-65

<2.23E+01 0.00E+00 2.23E+01 Zr-95

<1.22E+01 0.00E+00 1.22E+01 Nb-95

<1.13E+01 0.00E+00 1.13E+01 I-131

<2.17E+01 0.00E+00 2.17E+01 Cs-134

<1.09E+01 0.00E+00 1.09E+01 Cs-137

<1.32E+01 0.00E+00 1.32E+01 BaLa-140 1.04E+03 1.73E+02 2.00E+02 Be-7 3.95E+03 4.40E+02 1.71E+02 K-40 Sample ID: 362728 Nuclide Activity Sigma Error LLD 1

Sample Dates: 12/2/2014 - 12/2/2014 MIXEDBLV

<2.55E+01 0.00E+00 2.55E+01 Mn-54

<1.49E+01 0.00E+00 1.49E+01 Co-58

<8.03E+01 0.00E+00 8.03E+01 Fe-59

<3.31E+01 0.00E+00 3.31E+01 Co-60

<6.48E+01 0.00E+00 6.48E+01 Zn-65

<3.92E+01 0.00E+00 3.92E+01 Zr-95

<3.23E+01 0.00E+00 3.23E+01 Nb-95

<3.05E+01 0.00E+00 3.05E+01 I-131

<4.05E+01 0.00E+00 4.05E+01 Cs-134

<3.41E+01 0.00E+00 3.41E+01 Cs-137

<3.39E+01 0.00E+00 3.39E+01 BaLa-140 1.07E+03 2.87E+02 3.15E+02 Be-7 3.89E+03 7.61E+02 6.05E+02 K-40 (1) Effective 10JUL2014, analytical samples indicating detectable activity are reported with 2 Sigma error.

Duke Energy Annual Report - Appendix E Report Generated @ 4/30/2015 11:27:38 Appendix E - Page 94 of 94 EnRad Laboratories 13339 Hagers Ferry Road Huntersville, North Carolina 28078

Appendix F - Page 1 APPENDIX F ERRATA TO PREVIOUS REPORTS

Appendix F - Page 2 APPENDIX F ERRATA TO THE 2014 AREOR Catawba AREORs: 2009 and 2013 Report titled "Environmental TLD Dose Report" used by the Dosimetry Laboratory to communicate final TLD results was found to have an error in the calculation of dose per standard quarter. The error would have existed since the reports first use for 2nd quarter 2009 and only applies to quarters where date ranges were other than a standard quarter (not equal to 91 days). Catawba environmental TLD data were evaluated and it was determined the quarters affected were Catawba 3Q2009 and Catawba 1Q2013. Catawba environmental TLD results were updated during 2015 in the EnRad Sample Manager database to indicate the corrected dose per standard quarter values derived from the new Dosimetry Laboratory reporting mechanism. (PIP G-14-02451).

2009 Catawba AREOR entities affected:

Section 3.10, Figure 3.10

Section 3.10, Table 3.10

2009 inner ring average updated from 79.9 mR/yr to 81.4 mR/yr

2009 outer ring average updated from 71.9 mR/yr to 73.0 mR/yr

2009 control average updated from 58.0 mR/yr to 60.0 mR/yr 2009 Appendix B, Direct Radiation TLD section 2009 TLD Appendix B section as originally reported All Indicator Locations Location with Highest Annual Mean Control Location Mean (Fraction)

Range Location Code Mean (Fraction)

Range Mean (Fraction)

Range 18.7 (150 / 150) 235 23.9 (3 / 3) 14.5 (12 / 12) 10.2 - 29.6 (4.07 mi ESE) 17.0 - 29.6 10.2 - 20.6 Updated 2009 TLD Appendix B section All Indicator Locations Location with Highest Annual Mean Control Location Mean (Fraction)

Range Location Code Mean (Fraction)

Range Mean (Fraction)

Range 19.0 (150 / 150) 237 24.2 (4 / 4) 14.7 (12 / 12) 11.1 - 29.6 (4.75 mi SSE) 21.0 - 26.9 11.0 - 20.6

Appendix F - Page 3 2013 Catawba AREOR

Section 3.10, Figure 3.10

Section 3.10, Table 3.10

2013 inner ring average updated from 78.2 mR/yr to 80.0 mR/yr

2013 outer ring average updated from 71.2 mR/yr to 72.8 mR/yr

2013 control average updated from 58.0 mR/yr to 59.5 mR/yr 2013 Appendix B, Direct Radiation TLD section 2013 TLD Appendix B section as originally reported All Indicator Locations Location with Highest Annual Mean Control Location Mean (Fraction)

Range Location Code Mean (Fraction)

Range Mean (Fraction)

Range 18.4 (152 / 152) 229 24.2 (4 / 4) 14.5 (12 / 12) 12.0 - 26.7 (0.84 mi NW) 22.0 - 26.7 11.0 - 19.3 Updated 2013 TLD Appendix B section All Indicator Locations Location with Highest Annual Mean Control Location Mean (Fraction)

Range Location Code Mean (Fraction)

Range Mean (Fraction)

Range 18.9 (152 / 152) 229 24.8 (4 / 4) 14.9 (12 / 12) 12.0 - 29.4 (0.84 mi NW) 22.0 - 29.4 11.0 - 21.3

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