W3F1-2013-0028, Annual Radiological Environmental Operating Report - 2012

Annual Radiological Environmental Operating Report - 2012

ML13123A030
Person / Time
Site:	Waterford
Issue date:	04/30/2013
From:	Fugate C Entergy Operations
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
W3F1-2013-0028
Download: ML13123A030 (64)

Text

Entergy Operations, Inc.

a' Enteigy 17265 River Road Killona, LA 70057-3093 Tel 504 739 6685 Fax 504 739 6698 cfugate@entergy.com Chester Fugate Licensing Manager Waterford 3 W3F1 -2013-0028 April 30, 2013 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555-0001

Subject:

Annual Radiological Environmental Operating Report -2012 Waterford Steam Electric Station, Unit 3 (Waterford 3)

Docket No. 50-382 License No. NPF-38

Dear Sir or Madam:

Attached is the Annual Radiological Environmental Operating Report for the period of January 1 through December 31, 2012. This report is submitted pursuant to the requirements of Waterford 3 Technical Specification Section 6.9.1.7.

Please contact Chester Fugate, Licensing Manager, at (504) 739-6685, if you have questions regarding this information.

There are no new commitments contained in this submittal.

Sincerely, CF/JDW

Attachment:

Annual Radiological Environmental Operating Report - 2012

W3F1 -2013-0028 Page 2 cc: Mr. Arthur T. Howell Regional Administrator U. S. Nuclear Regulatory Commission Region IV RidsRgn4MailCenter@nrc.gov NRC Senior Resident Inspector Waterford Steam Electric Station Unit 3 Marlone.Davis@nrc.gov Mica.Baquera@nrc.gov NRC/NRR Project Manager for Waterford 3 Kaly.Kalyanam@nrc.gov Allyson Howie Entergy Legal, General Sr Councel AHowie@entergy.com

Attachment to W3F1-2013-0028 Annual Radiological Environmental Operating Report - 2012 (61 pages)

lEntergy I January 1, 2012 - December 31, 2912 1

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Originator:

Ann V. Dubois, Chemistry Technician Date Reviewed By:

Date Approved By:

Robert W. Heath, Chemistry Manager Date

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station TABLE OF CONTENTS

SUMMARY

I

1.0 INTRODUCTION

5 1.1 Radiological Environmental Monitoring Program 5 1.2 Pathways Monitored 5 1.3 Land Use Census 5 2.0 INTERPRETATION AND TRENDS OF RESULTS 20 2.1 Air Particulate and Radioiodine Sample Results 20 2.2 Thermoluminescent Dosimetry Sample Results 20 2.3 Water Sample Results 21 2.4 Sediment Sample Results 21 2.5 Milk Sample Results 22 2.6 Fish Sample Results 22 2.7 Broad Leaf Vegetation Sample Results 22 2.8 Land Use Census Results 22 2.9 Interlaboratory Comparison Results 22 3.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

25 3.1 2012 Program Results Summary 25

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Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station LIST OF TABLES TABLE 1.1 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM 6 TABLE 2.1 BIENNIAL LAND USE CENSUS RESULTS 23 TABLE 3.1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

26

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Annual Radiological 2012 Environmental Ooeratinl Report Waterford 3 Steam Electric Station LIST OF FIGURES FIGURE 1-1 REMP SAMPLES WITHIN 2 MILES OF WATERFORD 3 17 FIGURE 1-2 REMP SAMPLES WITHIN 10 MILES OF WATERFORD 3 18 FIGURE 1-3 REMP SAMPLES WITHIN 50 MILES OF WATERFORD 3 19 FIGURE 2-1 TLD RADIATION DOSE COMPARISON (BY YEAR) 24

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Annual Radiological 2012 Environmental ODeratina Report Waterford 3 Steam Electric Station LIST OF ATTACHMENTS ATTACHMENT 1 2012 RADIOLOGICAL MONITORING REPORT

SUMMARY

OF MONITORING RESULTS 30 ATTACHMENT 2 STATISTICAL COMPARISONS 48

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Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Summary The Annual Radiological Environmental Operating Report presents data obtained through analyses of environmental samples collected for Waterford 3's (W3) Radiological Environmental Monitoring Program (REMP) for the period January 1 through December 31, 2012. This report fulfills the requirements of W3 Technical Specification 6.9.1.7.

During 2012, gross beta radioactivity was detected in air and drinking/surface water locations. Results obtained at the indicator locations were similar to those obtained at the control location. Therefore, levels continue to remain at background.

Radiological Environmental Monitoring Program W3 established the REMP prior to the station becoming operational (1985) to provide data on background radiation and radioactivity normally present in the area. W3 has continued to monitor the environment by sampling air, water, sediment, milk, fish and broad leaf vegetation, as well as measuring radiation directly.

The REMP includes sampling indicator and control locations within a 31-mile radius of the plant. The REMP utilizes indicator locations near the site to show any increases or buildup of radioactivity that might occur due to station operation, and control locations farther away from the site to indicate the presence of only naturally occurring radioactivity. W3 compares indicator results with control, preoperational, and previous years operational results to assess any impact W3 might have on the surrounding environment.

In 2012, W3 collected environmental samples for radiological analysis. Based on the comparison results of indicator locations with control locations and previous studies, it was concluded that overall W3 operations had no significant impact on plant environs. The review of 2012 data, in many cases, showed undetectable radiation levels in the environment and near background levels in significant pathways associated with W3.

Harmful Effects or Irreversible Damage The REMP did not detect any harmful effects or evidence of irreversible damage in 2012. Therefore, no analysis or planned course of action to alleviate problems was necessary.

1

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station Reporting Levels W3's review indicates that no samples equaled or exceeded reporting levels for radioactivity concentration in environmental samples, as outlined in Technical Requirements Manual (TRM)

Table 3.12-2 when averaged over any calendar quarter, due to W3 effluents. Therefore, 2012 results did not trigger any radiological monitoring program special reports.

Radioactivity Not Attributable to W3 The W3 REMP detected radioactivity attributable to other sources three times. These include the 25th Chinese nuclear test explosion in 1980, the radioactivity plume release due to reactor core degradation at the Chernobyl Nuclear Power Plant in 1986, and the airborne release from Dai-lchi, Fukushima following the Tohoku earthquake on March 11, 2011.

Comparison to State Program W3 compared REMP data to the monitoring program of the Environmental Radiological Laboratory -

Department of Environmental Quality Laboratory Services Division (ERL-DEQLSD). The ERL-DEQLSD and the W3 REMP entail similar radiological environmental monitoring program requirements. Both programs have obtained similar results over previous years.

Sample Deviations

• Milk Samples Since milk samples for indicator location MKE-3 were unavailable for all quarters of 2012, broad leaf vegetation sampling was performed as required by TRM Table 3.12-1. Broad leaf vegetation results are in section 2.7. Milk samples were collected from one control location and analyzed for Iodine-131 and gamma radionuclides. Results indicate that all measurements were below the calculated LLDs.

Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

• Air Samples The air sample locations listed below failed to meet the requirement for sample continuity. As described in footnote (1) of TRM Table 3.12-1, deviations are permitted from the required sampling schedule due to malfunction of sampling equipment and other legitimate reasons.

Location Sample Period Explanation of Deviation APC-1 07/23/12 - 08/06/12 Sample pump trip 11/26/12 - 12/10/12 Sample pump trip APE-30 12/10/12 - 12/27/12 Electrical damage due to Hurricane Isaac (see page 31 for details) 2

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station

• Water Samples Location Sample Period Explanation of Deviation SWK-1 08/15/12 - 09/11/12 Loss of power during Hurricane Isaac

• Missed Samples TLDs located at stations Q-5 and R-6 were missing at the time of the first quarter exchange. TLDs located at stations D-5, N-1 and Q-5 were missing at the time of the fourth quarter exchange.

• Required Lower Limit of Detection (LLD) Values All LLDs during this reporting period were within the acceptable limits required by the W3 TRM.

• Unavailable Results W3 received analytical results in adequate time for inclusion in this report. In addition, W3's review identified no missing results.

+ Program Modifications No program modifications were made during 2012.

3

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Attachments contains results of air, TLD, water, sediment, milk, fish and broad leaf vegetation collected in 2012. TLDs were analyzed by Stanford Dosimetry. All remaining samples were analyzed by the River Bend (RBS) Environmental Laboratory. Attachment 1 also contains River Bend's participation in the interlaboratory comparison program during 2012. contains statistical comparisons of:

• TLD measurements from stations grouped by distance

• TLD radiation dose to historical data by location

• Gross beta activity measurements on air particulate filters

• Gross beta activity measurements in surface/drinking water samples 4

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station 1.0 Introduction 1.1 Radiological Environmental Monitoring Program W3 established the REMP to ensure that plant operating controls properly function to minimize any associated radiation endangerment to human health or the environment. The REMP is designed for:

• Analyzing important pathways for anticipated types and quantities of radionuclides released into the environment.

• Considering the possibility of a buildup of long-lived radionuclides in the environment and identifying physical and biological accumulations that may contribute to human exposures.

• Considering the potential radiation exposure to plant and animal life in the environment surrounding W3.

" Correlating levels of radiation and radioactivity in the environment with radioactive releases from station operation.

1.2 Pathways Monitored The airborne, direct radiation, waterborne and ingestion pathways are monitored as required by W3 TRM Table 3.12-1. A description of the W3 REMP utilized to monitor the exposure pathways is described in Table 1.1 and shown in Figures 1-1, 1-2 and 1-3.

Section 2.0 of this report provides a discussion of 2012 sampling results with Section 3.0 providing a summary of results for the monitored exposure pathways.

1.3 Land Use Census W3 conducts a land use census biennially, as required by Section 3.12.2 of the TRM. The purpose of this census is to identify changes in uses of land within five miles of W3 that would require modifications to the REMP and the Offsite Dose Calculation Manual (ODCM). The most important criteria during this census are to determine the location in each sector of the nearest:

1) Residence

2) Animal milked for human consumption 2 2

3) Garden of greater than 50 m (500 ft ) producing broad leaf vegetation.

W3 conducts the land use census by:

• Field surveys in each meteorological sector out to five miles in order to confirm:

> Nearest permanent residence

> Nearest garden and approximate size

> Nearest beef cow

> Nearest food product

> Nearest milking animal

• Identifying locations on maps, measuring distances to W3 and recording results on data sheets.

• Comparing current census results to previous results.

5

Annual Radiological 2012 Environmental ODeratina Reoort Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Airborne Radioiodine and Particulates Three samples from close to the three APQ-1 (NW, 0.81 Miles) - (West bank) Continuous sampler operation Radioiodine Canister 131 SITE BOUNDARY locations, in different Located in soybean/sugarcane field off with sample collection bi- analysis bi-weekly.

sectors, in or near sectors having the LA 18 east of LA 18/3141 intersection. weekly, or more frequently if highest calculated annual average ground level D/Q. APF-1 (ESE, 0.35 Miles) - (West bank) required by dust loading. Particulate Sampler- Gross Located on north side of Secondary beta radioactivity analysis Meteorological Tower. following filter change. Gamma isotopic analysis of composite APC-1 (NE, 0.67 Miles) - (East bank)

Located inside Little Gypsy Cooling Water (by location) quarterly.

Intake Structure fence.

Radioiodine and Particulates One sample from the vicinity of a APP-1 (WNW, 0.84 Miles) - (West bank) community having the highest Located in soybean/sugarcane field on calculated annual average ground level Short St. in Killona.

D/Q.

Radioiodine and Particulates One sample from a control location, as APE-30 (E, 25.2 Miles) - (West bank) for example 15 -30 km distant and in Located on roof of Entergy Office building the least prevalent wind direction. on Delaronde St. in Algiers. (Control) 6

Annual Radiological 2012 Environmental ODeratina Reoort Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An inner ring of stations, one in each A-2 (N, 1.27 Miles) - (East bank) Located Quarterly Gamma dose quarterly.

meteorological sector in the general on pole on LA 628 at Zephrin L. Perriloux area of the SITE BOUNDARY. Fire House.

B-1 (NNE, 0.75 Miles) - (East bank)

Located on fence west of Little Gypsy.

C-1 (NE, 0.67 Miles) - (East bank) Located on fence at Little Gypsy Cooling Water Intake structure.

D-2 (ENE, 1.24 Miles) - (East bank)

Located on pole on levee at west entrance to Bonnet Carre Spillway.

7

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An inner ring of stations, one in each E-1 (E, 0.41 Miles) - (West bank) Located on Quarterly Gamma dose quarterly.

meteorological sector in the general pole on LA 18 east of Waterford 3 plant area of the SITE BOUNDARY. entrance.

F-2 (ESE, 1.15 Miles) - (West bank) Located on fence on LA 3142 south of LA 18.

G-2 (SE, 1.26 Miles) - (West bank) Located on fence on LA 3142 north of railroad overpass.

H-2 (SSE, 1.54 Miles) - (West bank) Located on fence on LA 3142 north of LA 3127/3142 intersection.

8

Annual Radiological 2012 Environmental ODeratinQ Report Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An inner ring of stations, one in each J-2 (S, 1.38 Miles) - (West bank) Located on Quarterly Gamma dose quarterly.

meteorological sector in the general fence south of LA 3127 west of LA 3127/3142 area of the SITE BOUNDARY. intersection.

K-1 (SSW, 1.06 Miles) - (West bank) Located on stop sign at entrance to Entergy Education Center on LA 3127.

L-1 (SW, 1.06 Miles) - (West bank) Located on gate on LA 3127 west of LA 3127/3142 intersection.

M-I (WSW, 0.76 Miles) - (West bank)

Located on south gate of Waterford 1 and 2.

N-1 (W, 0.98 Miles) - (West bank) Located on pole at comer of Railroad Avenue and School House Road.

9

Annual Radiological 2012 Environmental ODerating Reoort Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An inner ring of stations, one in each P-I (WNW, 0.84 Miles) - (West bank) Located Quarterly Gamma dose quarterly.

meteorological sector in the general on fence enclosing air sample station APP-1.

area of the SITE BOUNDARY.

Q-1 (NW, 0.81 Miles) - (West bank) Located on fence enclosing air sample station APQ-1.

R-1 (NNW, 0.51 Miles) - (West bank) Located at Waterford I and 2 Cooling Water Intake Structure.

TLDs An outer ring of stations, 1 in 10 of the A-5 (N, 4.59 Miles) - (East bank) Located on meteorological sectors in the 6 to 8 km pole at intersection of Oswald Avenue and US ranges from the site. 61.

10

Annual Radiological 2012 Environmental ODeratina ReDort Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An outer ring of stations, 1 in 10 of the B-4 (NNE, 3.75 Miles) - (East bank) Located Quarterly Gamma dose quarteriy.

meteorological sectors in the 6 to 8 km on pole near weigh station on US 61.

ranges from the site.

D-5 (ENE, 4.09 Miles) - (East bank) Located on gate on shell road north of US61/LA48 intersection.

F-4 (ESE, 3.53 Miles) - (West bank) Located on pole behind house at 646 Aquarius St. in Hahnville.

11

Annual Radiological 2012 Environmental Oneratina Report Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An outer ring of stations, 1 in 10 of the E-5 (E, 4.08 Miles) - (East bank) Located on Quarterly Gamma dose quarterly.

meteorological sectors in the 6 to 8 km fence on Wesco Street off LA 48.

ranges from the site.

G-4 (SE, 3.30 Miles) - (West bank) Located on pole on LA 3160 north of railroad track.

H-8 (SSE, 8.13 Miles) - (West bank) Located on pole in front of Hahnville High School.

P-6 (WNW, 5.58 Miles) - (West bank) Located on fence at LA 640/railroad track intersection.

Q-5 (NW, 5.01 Miles) - (West bank) Located on pole on LA 18 across from Mississippi River marker 137.

12

Annual Radiological 2012 Environmental ODeratina ReDort Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation An outer ring of stations, 1 in 10 of the R-6 (NNW, 5.52 Miles) - (East bank) Located on Quarterly Gamma dose quarterly.

meteorological sectors in the 6 to 8 km fence on LA 3223 near railroad crossing.

ranges from the site.

TLDs The balance of the stations to be in F-9 (ESE, 8.18 Miles) - (East bank) Located on special interest areas such as fence north of railroad tracks on Jonathan Street.

population centers, nearby residences, schools, and in 1 or 2 areas to serve G-8 (SE, 7.74 Miles) - (West bank) Located on as control stations. back fence of Luling Entergy Office.

E-15 (E, 11.7 Miles) - (East bank) Located on fence on Alliance Avenue.

13

Annual Radiological 2012 Environmental Ooeratina ReDort Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Direct TLDs Radiation The balance of the stations to be in J-15 (S, 11.7 Miles) - (West bank) Located on pole Quarterly Gamma dose quarterly.

special interest areas such as near LA 631/Hwy 90 intersection in Des Allemands.

population centers, nearby residences, schools, and in 1 or 2 areas to serve E-30 (E, 25.2 Miles) - (West bank) Located at as control stations. entrance to Entergy office on Delaronde St. in Algiers.

(Control)

Waterbome Surface Water One sample upstream SWP-7 (WNW, 7.37 Miles) - (West bank) Located at Composite sample over Gamma isotopic analysis St. John Parish Waterworks in Edgard. (Control) one quarter period, quarterly. Composite for SWF-2 (ESE, 1.51 Miles) - (West bank) Located at tritium analysis quarterly.

One sample downstream Dow Chemical Plant drinking water canal.

SWE-5 (E, 4.59 Miles) - (East bank) Located at St.

Charles Parish Waterworks in New Sarpy.

SWK-1 (SSW, 0.49 Miles) - (West bank) Located at 40 Arpent Canal south of the plant.

14

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Waterborne Drinking Water One sample upstream DWP-7 (WNW, 7.37 Miles) - (West bank) Located Composite sample over one 1-131 analysis on each at St. John Parish Waterworks in Edgard. (Control month period when 1-131 composite when the dose DWF-2 (ESE, 1.51 Miles) - (West bank) Located at analysis is performed, quarterly calculated for the consumption of One sample downstream Dow Chemical Plant drinking water canal. composite otherwise. the water is greater than one DWE-5 (E, 4.59 Miles) - (East bank) Located at St. mrem per year. Composite for Charles Parish Waterworks in New Sarpy. gross beta and gamma isotopic analyses quarterly. Composite for tritium analysis quarterly.

Sediment from Shoreline One sample upstream SHWQ-6 (NW, 5.99 Miles) - (East bank) Located on LA 628 east of Reserve ferry landing. (Control) Annually Gamma isotopic analysis annually.

SHWE-3 (E, 2.99 Miles) - (West bank) Located at One sample downstream Foot Ferry landing on LA 18.

SHWK-1 (SSW, 0.49 Miles) - (West bank) Located at 40 Arpent Canal south of plant.

Ingestion Milk Samples from milking animals in the MKE-3 (E, 2.35 Miles) - (West bank) Located at the Quarterly Gamma isotopic and 1-131 three locations within 5 km distance Zeringue's house on LA 18 in Taft.

having the highest dose potential. If analysis quarterly.

there are none, then, one sample from milking animals in each of the three areas between 5 to 8 km distant where doses are calculated to be greater than 1 mrem per year.

15

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Table 1.1 Radiological Environmental Sampling Program Exposure Requirement Sample Point Description, Sampling and Type and Frequency Pathway Distance and Direction Collection Frequency Of Analyses Ingestion Milk One sample from milking animals at a MKA-31 (N, 31.2 Miles) - (East bank) Located at Quarterly Gamma isotopic and 1-131 control location 15 - 30 km distant and 18736 Sisters Road, Ponchatoula, LA. (Control) analysis quarterly.

in the least prevalent wind direction.

Fish and Invertebrates One sample of each commercially and FH-2 (Distance/Direction Not Applicable) - Sample in season, or Gamma isotopic analysis recreational important species in vicinity Downstream of the plant discharge structure. annually if they are not on edible portion.

of plant discharge area. seasonal FH-3 (Distance/Direction Not Applicable) -

(Westbank) Waterways downstream of plant discharge directed to 40 Arpent Canal.

One sample of same species in area FH-1 (Distance/Direction Not Applicable) -

not influenced by plant discharge. Upstream of the plant intake structure. (Control)

Broadleaf Samples of one to three different kinds BLQ-1 (NW, 0.83 Miles) - (West bank) Located near Quarterly Gamma isotopic and 1-131 of broadleaf vegetation grown nearest air sample station APQ-1. analysis.

each of two different off-site locations of highest predicted annual average BLB-1 (NNE, 0.81 Miles) - (East bank) Located west ground level D/Q if milk sampling is not of Little Gypsy on LA 628.

performed.

One sample of each of the similar BLE-20 (E, 19.7 Miles) - (West bank) Located on broadleaf vegetation grown 15 - 30 km property of Nine Mile Point in Westwego. (Control) distant in the least prevalent wind direction if milk sampling is not performed.

16

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station FIGURE 1-1 17

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station FIGURE 1-2 18

NI Annual Radiological 2012 Environmental Operating I I Report I

Waterford 3 Steam Electric Station FIGURE 1-3 REMP Samples Within N 10 to 60 Miles of Waterford-3 Ewa eton Rouge "',

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Sample Types N LM~'

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Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station 2.0 Interpretation and Trends of Results 2.1 Air Particulate and Radiolodine Sample Results Samples of airborne particulate and radioiodine were collected at four indicator locations and one control location and analyzed for gross beta radionuclides, Iodine-1 31 and gamma radionuclides (quarterly air particulate filter composites only). W3 did not detect any gamma radionuclides in the quarterly air particulate composites or Iodine-1 31 in the radioiodine cartridges during the reporting period as has been the case in previous years. Indicator gross beta air particulate results for 2012 were similar to those background levels obtained in previous years of the operational REMP and well below preoperational levels as seen below. Results are reported as annual average pCi/m.

Monitoring Period Result Preoperational 0.080 1983-2011 0.020 2012 0.024 Table 3.1, which includes gross beta concentrations for 2012, provides a comparison of the indicator and control means further emphasizes that the airborne pathway continues to remain at background levels. In addition, as shown in Attachment 2, the standard "t" test was used to compare average gross beta activity from each indicator station to the average gross beta activity at the control station. The results from this test show the average activity detected at all indicator stations is statistically the same as the average activity detected at the control station. Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

2.2 Thermoluminescent Dosimetry Sample Results The average exposure rates during 2012 are consistent with those from the preoperational program and the previous five years of operation as seen in Figure 2-1. In particular, the preoperational survey indicates that exposure rates ranged between 11 and 33 mrem/standard quarter with an average of 20 mrem/standard quarter. The range during the previous five years of operation was 8 to 16 mrem/standard quarter with an average exposure rate of 12 mrem/standard quarter.

A comparison of the indicator results to the control results, as seen in Table 3.1, shows that the average indicator is slightly higher than that of the control. As shown in Attachment 1, Table 2.1, several indicator locations are higher than the control by a few mrem with a maximum difference of six mrem.

As shown in Attachment 2, Table 2.1, the standard "t" test was used to compare average exposure rates for TLD stations located in groups 0-2 miles and 2-5 miles from the plant to those

> 5 miles. The results indicate that the average exposure rates 0-2 miles from the plant are statistically the same as >5 miles while those 2-5 miles are statistically higher.

The differences between indicator locations and the control, and TLD stations grouped by distance from the plant are expected due to a variety of factors not related to W3 plant operations that can affect background radiation in the vicinity of each TLD station. Direct radiation measurements at each TLD station have remained statistically the same in 2012 as previous years of operation as evidenced on Attachment 2, Table 2.2. In addition, Radiological Gaseous Effluents for 2012 were only a small fraction of the limits and are not expected to have any impact on environmental TLD measurements.

20

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station 2.3 Water Sample Results Analytical results for 2012 drinking/surface water samples were similar to those reported in previous years.

Drinking/Surface Water Drinking water samples also serve as surface water samples for W3. Therefore, monthly and quarterly gamma spectroscopy and tritium analyses of drinking water also satisfy the surface water sampling requirement.

Composite drinking/surface water samples were collected from two indicators and one control location and analyzed for Iodine-1 31, gamma radionuclides and tritium. Results indicate that all measurements were below the calculated LLDs.

Although gross beta was detected in the drinking/surface water samples, results for the indicator locations were below preoperational years and slightly above previous operational years as seen below. Results are reported as annual average pCi/I.

Monitoring Period Result Preoperational 7.0 1983-2011 4.6 2012 6.6 Table 3.1, which includes gross beta concentrations for 2012, provides a comparison of the indicator and control means shows that the waterborne pathway continues to remain at background levels. In addition, as shown in Attachment 2, the standard "t" test was used to compare average gross beta activity from indicator stations to the average gross beta activity from the control station. The results from the test show the average activity detected at all indicator stations is statistically the same as the average activity detected at the control station.

Results are consistent with historical data stated above. Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

Surface Water Surface water samples were collected from one indicator location and analyzed for gamma radionuclides and tritium. Results indicate that all measurements were below the calculated LLDs. Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

2.4 Sediment Sample Results Sediment samples were collected from two indicator locations and one control location and analyzed for gamma radionuclides. Results indicate that all measurements were below the calculated LLDs. Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

21

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station 2.5 Milk Sample Results Since milk samples for indicator location MKE-3 were unavailable for all quarters of 2012, broad leaf vegetation sampling was performed as required by TRM Table 3.12-1. Broad leaf vegetation results are in section 2.7. Milk samples were collected from one control location and analyzed for Iodine-1 31 and gamma radionuclides. Results indicate that all measurements were below the calculated LLDs. Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

2.6 Fish Sample Results Fish samples were collected from two indicators and one control location and analyzed for gamma radionuclides. Results indicate that all measurements were below the calculated LLDs.

Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

2.7 Broadleaf Vegetation Sample Results Broadleaf vegetation samples were collected from two indicators and one control location and analyzed for Iodine-1 31 and gamma radionuclides. Results indicate that all measurements were below the calculated LLDs. Therefore, W3 concluded that plant operations had no significant impact on this pathway during 2012.

2.8 Land Use Census Results In compliance with the Waterford 3 0DCM and TRM, the land use census was conducted September 24 - September 26, 2012. The nearest residence, garden, beef cow, food product and milk animal in each sector within a five mile radius of the plant was located by visual inspection and verbal inquiry.

One new residence location (sector R) and four new garden locations (sectors D, G, N, and R) were identified in 2012. Milk cow, goat, beef cow and food product locations remained unchanged for 2012. Based upon the locations identified in this survey, the locations identified in previous surveys and the locations currently being used to calculate dose commitments from liquid and gaseous effluents released from W3, no REMP sampling location changes are necessary. Results of the 2012 biennial census are shown in Table 2.1.

2.9 Interlaboratory Comparison Results The River Bend Station Environmental Laboratory analyzed interlaboratory comparison samples for W3 to fulfill the requirements of Section 5.7.2 of the ODCM. Attachment 1 contains these results.

22

Annual Radiological 2012 Environmental ODeratina ReDort Waterford 3 Steam Electric Station TABLE 2.1 Biennial Land Use Census Results Sector Direction Distance from Plant in Miles Milk Beef Food Residence Garden Cows Cows Goats Products A N 1.3 1.7 A 4.8 A 4.1 B NNE 1.1 1.3 A A A 1.3 C NE 0.9 1.0 A A A A D ENE 0.9 3.2 A A A A E E 2.2 2.2 **2.3 2.3

• 3.2 0.3 F ESE 3.1 2.2 A 2.3 A 0.3 G SE 4.0 4.1 A 2.4 A 0.3 H SSE A A A A A 0.3 J S A A A A A 0.5 K SSW A A A A A 0.5 L SW A A A A A 0.5 M WSW A 1.4 A 1.2 A 0.5 N W 1.0 1.1 A 1.0 A 0.6 P WNW 0.9 0.9 A A A 0.6 Q NW 0.9 1.0 A A A 0.6 R NNW 3.0 3.0 A 4.9 A 2.6 A Indicates that nothing was found in the sector within a five mile radius of Waterford 3

• Animals were located at this distance from Waterford 3, but the milk is not currently used for human consumption

• • Samples are being obtained from animals at this location (MKE-3) for REMP 23

Annual Radiological 2012 Environmental Oneratina Report Waterford4 3 Steam Electric' A$ntrnn FIGURE 2-1 TLD Radiation Dose Comparison By Year 40 40 35 35 30 30 25 25 20 20 0.

15 15 E

E, E 10 10 5 5 0

0 P pAR YEAR 24

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station 3.0 Radiological Environmental Monitoring Program Summary 3.1 2012 Program Results Summary Table 3.1 summarizes the 2012 REMP results. W3 did not use values reported as less than the lower limit of detection (< LLD) when determining ranges and means for indicator and control locations.

25

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Waterford 3 SES Docket No: 50-382 Location of Facility: St. Charles, Louisiana Reporting Period: January - December 2012 Sample Type Type & Number LLD b Indicator Locations Location with Highest Annual Control Number of (Units) Of Analyses a Mean ( F) c Mean Locations Nonroutine

[Range] Mean (F) c Results e

[ Range]

Mean ( F ) c Location d [ Rangee ]

Airborne Particulates GB 130 0.01 0.024 ( 102 / 104) APQ-1 0.025 ( 26 / 26) 0.025 ( 25 / 26) 0 (pCi/m 3

) [0.008 - 0.049] (NW, 0.81 mi.) [0.011 - 0.048] [0.011 - 0.048]

GS 20 Cs-1 34 0.05 <LLD N/A N/A <LLD 0 Cs-1 37 0.06 <LLD N/A N/A <LLD 0 Airborne Iodine 1-131 130 0.07 <LLD N/A N/A <LLD 0 3

(pCi/m )

Indicator TLDs Gamma 120 (f) 12 ( 115 / 120) F-4 15(4/4) N/A 0

( mrem/Std. Qtr) [8.5 - 16.1] (ESE, 3.53 mi.) [14.1 - 15.5]

Control TLDs Gamma 4 (f) N/A N/A N/A 10 ( 4 / 4) 0

( mrem/Std. Qtr) [9.6- 10.4]

26

Annual Radiological 2012 Environmental Ooeratina ReDort Waterford 3 Steam Electric Station TABLE 3.1 Radiological Environmental Monitoring Proaram Summary Name of Facility: Waterford 3 SES Docket No: 50-382 Location of Facility: St. Charles, Louisiana Reporting Period: January - December 2012 Sample Type Type & Number LLD b Indicator Location Location with Highest Annual Mean Control Number of (Units) of Analyses a Mean (F ) c Locations Nonroutine

[Range] Mean (F) c Results e

[ Range]

Mean (F ) c Location d [ Range ]

Surface Water & Gross Beta 12 4 6.6(7/8) DWF/SWF-2 7.5(4/4) 5.4(3/4) 0 Drinking Water [1.9 - 12.3] (ESE, 1.51 mi.) [1.9 - 12.3] [3.0 - 8.3]

(pCi/I) 1-131 40 1 <LLD N/A N/A <LLD 0 H-3 12 2000 <LLD N/A N/A <LLD 0 GS 12 Mn-54 15 <LLD N/A N/A <LLD 0 Fe-59 30 <LLD N/A N/A <LLD 0 Co-58 15 <LLD N/A N/A <LLD 0 Co-60 15 <LLD N/A N/A <LLD 0 Zn-65 30 <LLD N/A N/A <LLD 0 Zr-95 15 <LLD N/A N/A <LLD 0 Nb-95 15 <LLD N/A N/A <LLD 0 Cs-134 15 <LLD N/A N/A <LLD 0 Cs-1 37 18 <LLD N/A N/A <LLD 0 Ba-140 15 <LLD N/A N/A <LLD 0 La-140 15 <LLD N/A N/A <LLD 0 27

Annual Radiological 2012 Environmental Ooeratina Reoort Waterford 3 Steam Electric Station TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Waterford 3 SES Docket No: 50-382 Location of Facility: St. Charles, Louisiana Reporting Period: January - December 2012 Sample Type Type & LLD b Indicator Locations Location with Highest Annual Mean Control Locations Number of (Units) Number Mean (F) c Mean ( F ) c Nonroutine of Analyses a [Range] [Range Results e Mean ( F ) c Location d [Range ]

Surface Water H-3 4 3000 <LLD N/A N/A N/A 0 (pCill)

GS 13 Mn-54 15 <LLD N/A N/A N/A 0 Fe-59 30 <LLD N/A N/A N/A 0 Co-58 15 <LLD N/A N/A N/A 0 Co-60 15 <LLD N/A N/A N/A 0 Zn-65 30 <LLD N/A N/A N/A 0 Zr-95 15 <LLD N/A N/A N/A 0 Nb-95 15 <LLD N/A N/A N/A 0 Cs-1 34 15 <LLD N/A N/A N/A 0 Cs-1 37 18 <LLD N/A N/A N/A 0 Ba-140 15 <LLD N/A N/A N/A 0 La-140 15 <LLD N/A N/A N/A 0 1-131 15 <LLD N/A N/A N/A 0 Shoreline GS 3 Sediment Cs-134 150 <LLD N/A N/A <LLD 0 (pCilkg dry)

Cs-1 37 180 <LLD N/A N/A <LLD 0 28

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station TABLE 3.1 Radiological Environmental Monitoring Program Summary Name of Facility: Waterford 3 SES Docket No: 50-382 Location of Facility: St. Charles. Louisiana Reporting Period: January: December 2012 Sample Type Type & Number LLD b Indicator Location Location with Highest Annual Mean Control Number of (Units) of Analyses a Mean (F ) c Locations Nonroutine

[Range] Mean (F) c Results e

[Range]

Mean ( F ) c Location d [Range]

Milk 1-131 4 1< LLD N/A N/A <LLD 0 (pCi/I)

GS 4 Cs-1 34 15 < LLD N/A N/A <LLD 0 Cs-1 37 18 < LLD N/A N/A <LLD 0 Ba-1 40 15 < LLD N/A N/A <LLD La-1 40 15 < LLD N/A N/A <LLD 0 0

Fish GS 12 (pCi/kg wet) Mn-54 130 <LLD N/A N/A <LLD 0 Fe-59 260 <LLD N/A N/A <LLD 0 Co-58 130 <LLD N/A N/A <LLD 0 Co-60 130 <LLD N/A N/A <LLD 0 Zn-65 260 <LLD N/A N/A <LLD 0 Cs-1 34 130 <LLD N/A N/A <LLD 0 Cs-1 37 150 <LLD N/A N/A <LLD 0 Broadleaf Vegetation 1-131 12 60 <LLD N/A N/A <LLD 0 (pCi/kg wet)

GS 12 Cs-1 34 60 <LLD N/A N/A <LLD 0 Cs-1 37 80 <LLD N/A N/A <LLD 0 a GB Gross beta; 1-131 = Iodine-131; H-3 = Tritium; GS = Gamma scan.

b LLD = required lower limit of detection based on Waterford 3 TRM.

c Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parenthesis (F).

d Locations are specified (1) by name and (2) degrees relative to reactor site.

e Non-routine results are those which exceed ten times the control station value. If no control station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

f LLD is not defined inWaterford 3 TRM.

29

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Attachment 1 2012 Radiological Monitoring Report Summary of Monitoring Results 30

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station TABLE OF CONTENTS TABLE 1.1 AIR PARTICULATE FILTER 32 TABLE 1.2 RADIOIODINE CARTRIDGE 33 TABLE 1.3 AIR PARTICULATE FILTER 34 TABLE 2.1 THERMOLUMINESCENT DOSIMETERS 35 TABLE 3.1 DRINKING/SURFACE WATER 36 TABLE 3.2 DRINKINGISURFACE WATER 37 TABLE 3.3 DRINKINGISURFACE WATER 38 TABLE 3.4 DRINKING/SURFACE WATER 39 TABLE 3.5 SURFACE WATER 40 TABLE 4.1 SEDIMENT 41 TABLE 5.1 MILK 42 TABLE 6.1 FISH 43 TABLE 7.1 BROADLEAF VEGETATION 44 TABLE 8.1 INTERLABORATORY COMPARISON 45 31

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station Table 1.1 Sample Type: Air Particulate Filter Analysis: Gross Beta Units: pCi/m3 End Date APF-1 APQ-1 APP-I APC-1 APE-30 (Indicator) (Indicator) (Indicator) (Indicator) (Control)

Required LLD 0.01 0.01 0.01 0.01 0.01 01-09-12 0.026 0.028 0.026 0.025 0.027 01-23-12 0.025 0.027 0.028 0.027 0.027 02-06-12 0.018 0.020 0.020 0.020 0.020 02-20-12 0.025 0.025 0.025 0.023 0.028 03-05-12 0.017 0.019 0.019 0.017 0.018 03-19-12 0.010 0.015 0.016 0.016 0.016 04-02-12 0.021 0.022 0.021 0.021 0.022 04-16-12 0.028 0.028 0.029 0.026 0.028 04-30-12 0.018 0.021 0.022 0.018 0.022 05-14-12 0.009 0.016 0.008 0.016 0.016 05-29-12 0.030 0.034 0.034 0.033 0.022 06-11-12 0.016 0.018 0.015 0.018 0.021 06-25-12 0.015 0.015 0.015 0.015 0.015 07-09-12 0.028 0.028 0.027 0.025 0.027 07-23-12 0.010 0.011 0.011 0.008 0.011 (1) 08-06-12 0.019 0.021 0.020 0.020 08-20-12 0.014 0.014 0.016 0.015 0.016 09-04-12 0.021 0.025 0.026 0.022 0.024 09-17-12 0.024 0.024 0.024 0.018 0.022 10-01-12 0.030 0.032 0.032 0.027 0.030 10-15-12 0.045 0.047 0.044 0.037 0.048 10-29-12 0.031 0.031 0.030 0.026 0.031 11-12-12 0.037 0.037 0.034 0.032 0.038 11-26-12 0.046 0.048 0.049 0.039 0.048 12-10-12 0.028 0.027 (1) 0.027 0.030 (2) 12-24-12 0.032 0.032 0.028 0.031 (1)

Low volume due to sample pump trip (2)

Although there was no loss of electrical power to this air sampler during Hurricane Isaac, various sections of the building suffered electrical damage. The electrical power at the air sample location was turned off from 12-10-12 through 12-27-12 while repairs were being made.

32

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Table 1.2 Sample Type: Radiolodine Cartridge Analysis: Iodine-131 Units: pCi/mr End Date APF-1 APQ-1 APP-1 APC-1 APE-30 (Indicator) (Indicator) (Indicator) (Indicator) (Control)

Required LLD 0.07 0.07 0.07 0.07- 0.07 01-09-12 < 0.015 <0.018 < 0.013 < 0.020 < 0.016 01-23-12 < 0.012 < 0.012 < 0.011 < 0.010 < 0.012 02-06-12 < 0.008 < 0.016 < 0.010 < 0.012 < 0.013 02-20-12 < 0.014 < 0.014 < 0.013 < 0.014 < 0.019 03-05-12 < 0.012 < 0.012 < 0.011 < 0.013 < 0.010 03-19-12 < 0.013 < 0.015 < 0.011 < 0.013 < 0.012 04-02-12 < 0.010 < 0.015 < 0.013 < 0.015 < 0.014 04-16-12 < 0.016 < 0.012 < 0.012 < 0.012 < 0.013 04-30-12 < 0.015 < 0.015 < 0.012 < 0.012 < 0.017 05-14-12 < 0.012 < 0.012 < 0.013 < 0.013 < 0.014 05-29-12 < 0.011 < 0.010 < 0.011 < 0.010 < 0.010 06-11-12 < 0.014 < 0.011 < 0.012 < 0.012 < 0.011 06-25-12 < 0.016 < 0.012 < 0.012 < 0.012 < 0.015 07-09-12 < 0.011 < 0.011 < 0.013 < 0.014 < 0.012 07-23-12 < 0.012 < 0.012 < 0.010 < 0.011 < 0.014 (1) 08-06-12 <0.012 <0.011 < 0.008 < 0.014 08-20-12 < 0.014 < 0.010 < 0.011 < 0.024 < 0.014 09-04-12 < 0.012 < 0.017 < 0.016 < 0.015 < 0.015 09-17-12 < 0.017 < 0.010 < 0.013 < 0.013 < 0.014 10-01-12 < 0.015 < 0.010 < 0.011 < 0.014 < 0.014 10-15-12 < 0.011 < 0.011 < 0.011 < 0.013 < 0.014 10-29-12 < 0.013 < 0.012 < 0.011 < 0.014 < 0.015 11-12-12 < 0.013 < 0.015 < 0.009 < 0.016 < 0.012 11-26-12 < 0.012 < 0.012 < 0.011 < 0.014 < 0.014 (1) 12-10-12 < 0.011 < 0.012 < 0.011 < 0.018 (2) 12-24-12 < 0.017 < 0.013 < 0.016 < 0.012 (1) Low volume due to sample pump trip (2) Although there was no loss of electrical power to this air sampler during Hurricane Isaac, various sections of the building suffered electrical damage. The electrical power at the air sample location was turned off from 12-10-12 through 12-27-12 while repairs were being made.

33

Annual Radiological 2012 Environmental ODeratina Reoort Waterford 3 Steam Electric Station Table 1.3 Sample Type: Air Particulate Filter Analysis: Gamma Isotopic Units: pCi/ms Location Quarterly Cs-1 34 Cs-1 37 Composite Required LLD -1 0.05 0.06 APF-1 (Indicator) 1st < 0.002 < 0.002 APQ-1 (Indicator) 1st < 0.001 < 0.001 APP-1 (Indicator) ist < 0.001 < 0.001 APC-1 (Indicator) 1st < 0.001 < 0.001 APE-30 (Control) 1st < 0.002 < 0.002 APF-1 (Indicator) 2nd < 0.002 < 0.002 APQ-1 (Indicator) 2nd < 0.002 < 0.002 APP-1 (Indicator) 2nd < 0.001 < 0.001 APC-1 (Indicator) 2nd < 0.001 < 0.002 APE-30 (Control) 2nd < 0.002 < 0.002 APF-1 (Indicator) 3rd < 0.001 < 0.002

• APQ-1 (Indicator) 3rd < 0.001 < 0.002 APP-1 (Indicator) 3rd < 0.001 < 0.002 APC-1 (Indicator) 3rd < 0.002 < 0.002 APE-30 (Control) 3rd < 0.001 < 0.001 APF-1 (Indicator) 4th < 0.001 < 0.002 APQ-1 (Indicator) 4th < 0.002 < 0.002 APP-1 (Indicator) 4th < 0.002 < 0.002 APC-1 (Indicator) 4th < 0.002 < 0 .002 APE-30 (Control) 4th < 0.002 < 0. 001 34

Annual Radiological 2012 Environmental ODeratina Report Waterford 3 Steam Electric Station Table 2.1 Sample Type: Thermoluminescent Dosimeters Analysis: Gamma Dose Units: mrem/Std. Qtr.

Indicator Locations Station 1st Qtr '12 2nd Qtr '12 3rd Qtr '12 4th Qtr '12 Annual Mean '12 A-2 14 14 14 13 14 A-5 12 12 16 12 13 B-1 13 12 14 13 13 B-4 14 14 14 14 14 C-1 9 9 10 9 9 D-2 10 10 11 10 10 D-5 (2) 12 12 12 12 E-1 11 11 12 11 11 E-5 13 12 13 13 13 E-1 5 11 10 11 10 10 F-2 12 12 13 12 12

• F-4 15 14 15 15 15 F-9 12 12 13 12 12 G-2 11 10 11 11 11 G-4 11 10 11 11 11 G-8 11 10 12 11 11 H-2 12 12 13 12 12 H-8 12 11 12 11 12 J-2 10 10 11 11 10 J-1 5 13 12 1.3 12 13 K-1 11 10 12 11 11 L-1 13 14 14 13 14 M-1 10 10 11 10 10 N-1 (2) 14 13 14 14 P-1 10 9 11 10 10 P-6 13 13 14 13 14 Q-1 13 12 14 12 13 Q-5 (2) (2) 12 13 13 R-1 10 9 10 9 10 R-6 (2) 10 11 11 11 Control Location Station 1st Qtr '12 2nd Qtr '12 3rd Qtr '12 4th Qtr '12 Annual Mean '12 E-30 10 10 10 10 10 (1) Location with highest annual mean (2) No data - TLDs missing at time of exchange 35

Annual Radiological 2012 Environmental ODeratina Reoort Waterford 3 Steam Electric Station Table 3.1 Sample Type: Drinking/Surface Water Analysis: Gross Beta Units: pCi/I Quarterly DWFISWF-2 DWE/SWE-5 DWP/SWP-7 Composite (Indicator) (Indicator) (Control)

Required LLD -1 4 4 4 1 St 1.89 <1.39 <1.38 2nd 6.22 7.92 8.32 3rd 12.3 4.68 3.02 4 th 9.73 3.56 4.73 36

Annual Radiological 2012 Environmental Operatinci Report Waterford 3 Steam Electric Station Table 3.2 Sample Type: Drinkinlg/Surface Water Analysis: Iodine-131 Units: pCi/I Collection SWK-1 DWF/SWF-2 DWE/SWE-5 DWPISWP-7 Date (Indicator) (Indicator) (Indicator) (Control)

LLD 15 I I 1 (1)01-04-12

<0.75 02-01-12 <3.52 < 0.50 < 0.55 < 0.77 02-29-12 < 4.60 <0.61 < 0.58 < 0.54 03-27-12 < 3.54 < 0.57 < 0.58 < 0.56 04-25-12 < 5.36 < 0.56 < 0.52 < 0.55 05-23-12 < 4.01 < 0.55 < 0.80 < 0.49 06-20-12 < 4.07 < 0.48 < 0.44 < 0.41 07-18-12 <4.81 < 0.99 < 0.99 < 0.99 08-15-12 <6.14 < 0.97 < 0.99 < 0.99 09-11-12 < 4.64* < 0.78 < 0.99 < 0.99 10-10-12 < 3.95 < 0.70 < 0.82 < 0.74 11-07-12 < 4.49 < 0.80 < 0.73 < 0.81 12-04-12 <4.17 < 0.94 < 0.99 < 0.83 01-02-13 < 3.45 < 0.67 < 0.74 < 0.82 (1)Duplicate sample

• Hurricane Isaac occurred during the middle of the composite sample period. Power was lost during this sample period, however, sufficient volume was collected to analyze the sample.

37

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Table 3.3 Sample Type: Drinking/Surface Water Analysis: Gamma Isotopic Units: pCi/I Location Collection Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Date Required LLD -'* 15 15 30 15 30 15 15 15 18 15 15 DWF/SWF-2 (Indicator) 1st < 4.15 < 3.82 < 7.02 < 3.94 < 5.36 < 3.68 < 6.64 < 4.23 < 5.28 < 14.60 < 6.46 DWE/SWE-5 (Indicator) 1st < 2.75 < 3.16 < 5.45 < 1.94 < 6.25 < 3.81 < 5.09 < 2.85 < 3.35 < 13.30 < 3.73 DWPISWP-7 (Control) 1st < 5.60 < 4.72 < 3.04 < 1.18 < 10.0 < 4.59 < 8.20 < 3.21 < 3.53 < 14.20 < 4.71 DWF/SWF-2 (Indicator) 2nd < 2.94 < 4.17 < 5.20 < 2.53 < 6.82 < 4.11 < 5.81 < 3.09 < 4.08 < 13.50 < 7.38 DWE/SWE-5 (Indicator) 2nd < 2.63 < 2.46 < 5.22 < 3.05 < 4.93 < 2.50 < 4.83 < 2.40 < 2.63 < 13.30 < 4.34 DWPISWP-7 (Control) 2nd < 5.32 < 2.84 < 7.47 < 3.07 < 8.65 < 3.55 < 6.17 < 3.69 < 4.23 < 14.50 < 6.75 DWF/SWF-2 (Indicator) 3rd < 2.86 <3.60 < 3.98 < 2.80 < 6.12 < 3.59 < 5.19 < 2.31 < 3.16 < 13.10 < 6.02 DWEISWE-5 (Indicator) 3rd < 4.75 < 4.75 < 10.6 < 3.11 < 7.69 < 4.64 < 8.90 < 3.69 < 4.31 < 13.80 < 5.33 DWP/SWP-7 (Control) 3rd < 5.01 < 3.62 < 7.51 < 5.60 < 7.40 < 3.23 <5.16 < 3.49 < 5.59 < 14.30 < 5.75 DWF/SWF-2 (Indicator) 4th < 6.29 < 5.62 < 6.17 < 4.01 < 12.3 < 5.09 < 9.18 < 4.59 < 5.92 < 13.10 < 6.02 DWE/SWE-5 (Indicator) 4th < 5.37 < 5.33 < 8.51 < 6.01 < 11.5 < 6.90 < 6.65 < 4.08 < 5.32 < 13.50 < 6.90 DWP/SWP-7 (Control) 4th < 6.72 < 5.24 < 9.81 < 4.89 < 7.36 < 7.50 < 8.85 < 4.82 < 5.17 < 15.00 < 5.43 38

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station Table 3.4 Sample Type: Drinking/Surface Water Analysis: Tritium Units: pCi/I Quarter DWF/SWF-2 DWEISWE-5 SWK-1 DWP/SWP-7 (Indicator) (Indicator) (Indicator) (Control)

Required LLD -1 2000 2000 3000 2000 1 st < 689.06 < 687.93 < 687.59 < 689.94 2 nd < 650.32 < 650.48 < 669.75 < 654.60 3 rd < 587.42 < 621.69 < 619.97* < 618.67 4 th < 577.88 < 578.74 < 578.89 < 578.32

• Hurricane Isaac occurred during the middle of the composite sample period. Power was lost during this sample period, however, sufficient volume was collected to analyze the sample.

39

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Table 3.5 Sample Type: Surface Water Analysis: Gamma Isotopic Units: pCi/I Location Collection Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Date Required LLD - 15 15 30 15 30 15 15 15 18 15 15 SWK-1 02-01-12 < 3.64 < 3.61 < 6.23 < 2.62 < 6.06 < 3.60 < 6.48 < 3.66 < 4.04 < 13.00 < 4.89 (Indicator) 02-29-12 < 4.52 < 3.70 < 7.63 < 5.24 < 6.57 < 5.12 < 7.77 < 4.52 < 3.93 < 14.70 < 5.61 03-27-12 < 3.27 < 3.11 < 5.02 < 3.82 < 9.07 < 3.94 < 5.64 < 2.96 < 2.79 < 14.30 < 4.57 04-25-12 < 4.70 < 4.90 < 7.82 < 4.09 < 6.72 < 4.27 < 9.29 < 3.14 < 4.14 < 14.80 < 6.99 05-23-12 < 4.64 < 4.60 < 7.76 < 5.94 < 9.64 < 3.39 < 8.01 < 4.63 < 5.16 < 14.60 < 5.46 06-20-12 < 3.24 < 4.73 < 6.14 < 3.60 < 9.48 < 2.65 < 6.61 < 3.65 < 4.12 < 14.20 < 1.15 07-18-12 < 2.72 < 2.78 < 6.40 < 3.52 < 5.60 < 3.45 < 6.41 < 3.08 < 4.28 < 14.60 < 6.13 08-15-12 < 2.66 < 3.21 < 7.04 < 3.23 < 8.51 < 3.37 < 6.95 < 3.51 < 4.10 < 15.00 < 5.12

• 09-11-12 < 3.71 < 3.60 < 8.26 < 3.32 < 7.50 < 3.52 < 7.04 < 2.59 < 3.30 < 12.80 < 4.96 10-10-12 < 5.61 < 4.03 < 9.67 < 4.46 < 12.5 < 4.81 < 7.72 < 4.32 < 4.69 < 15.00 < 5.72 11-07-12 <3.59 <2.97 < 6.03 <2.76 < 7.01 <3.80 <7.13 <3.16 <3.75 <13.60 <3.73 12-04-12 < 5.44 < 4.87 < 5.36 < 3.13 < 8.70 < 6.12 < 7.96 < 3.72 < 4.23 < 14.70 < 5.69 01-02-13 < 3.71 < 3.79 < 5.99 < 3.73 < 6.66 < 3.77 < 5.70 < 3.23 < 3.62 < 12.90 < 4.93

• Hurricane Isaac occurred during the middle of the composite sample period. Power was lost during this sample period, however, sufficient volume was collected to analyze the sample.

40

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station Table 4.1 Sample Type: Sediment Analysis: Gamma Isotopic Units: pCi/kg (dry)

Location Collection Cs-134 Cs-137 Date Required LLD -10 150 180 SHWK-1 (Indicator) 03-05-12 < 18.0 < 32.3 SHWE-3 (Indicator) 03-05-12 < 19.9 < 29.6 SHWQ-6 (Control) 03-05-12 < 17.1 < 22.7 41

Annual Radiological 2012 Environmental Ooeratina ReDort Waterford 3 Steam Electdc Station Table 5.1 Sample Type: Milk Analysis: Iodine-131 and Gamma Isotopic Units: pCi/I Location Collection 1-131 Cs-134 Cs-137 Ba-140 La-140 Date Required LLD --

• I 15 18 15 15 MKE-3 (Indicator) (1)03-15-12 n/a n/a n/a n/a n/a (1)06-14-12 n/a n/a n/a n/a n/a (1)09-20-12 n/a n/a n/a n/a n/a (1)12-05-12 n/a n/a n/a n/a n/a MKA-31 (Control) 03-15-12 < 0.61 < 3.51 < 5.73 < 14.10 < 5.41 06-14-12 < 0.49 < 4.26 < 5.54 < 14.40 < 5.00 09-20-12 < 0.73 < 4.61 < 4.78 < 15.00 <3.15 12-05-12 < 0.98 < 3.84 < 5.44 < 13.70 < 5.24

(') Sample not available. Cows not producing enough milk. See page 2 for details.

42

Annual Radiological 2012 Environmental ODeratina Report Waterford 3 Steam Electric Station Table 6.1 Sample Type: Fish Analysis: Gamma Isotopic Units: pCi/kg (wet)

Location Collection Species Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 Date Required LLD 1 130 130 260 130 260 130 150 FH-1 (Control) 10-30-12 Buffalo < 8.36 < 8.79 < 22.80 < 10.40 < 18.20 < 6.13 < 8.82 10-30-12 Carp < 9.77 < 9.97 < 22.70 < 12.10 < 27.20 < 6.50 < 7.69 10-30-12 Catfish < 8.04 < 7.72 < 17.50 < 7.90 < 14.60 < 7.00 < 8.46 10-30-12 Mullet < 9.51 < 7.97 < 23.50 < 9.83 < 25.30 < 9.74 <11.80 FH-2 (Indicator) 10-30-12 Buffalo < 9.75 < 9.98 < 25.20 < 6.67 < 28.00 < 8.98 < 7.87 10-30-12 Carp < 7.61 < 10.7 < 25.30 < 12.0 < 22.00 < 7.67 < 10.1 10-30-12 Catfish < 8.56 < 7.10 < 23.80 < 10.5 < 19.00 < 7.08 < 7.23 10-30-12 Mullet < 8.52 < 9.01 < 20.20 < 10.4 < 23.50 < 8.20 < 10.8 FH-3 (Indicator) 10-23-12 Shad < 9.08 < 9.43 < 27.00 < 11.7 < 25.30 < 6.15 < 8.70 10-23-12 Carp < 9.53 < 10.6 < 25.00 < 8.85 < 17.10 < 7.89 < 9.38 10-25-12 Catfish < 9.31 < 8.56 < 19.40 < 9.50 < 21.30 < 5.23 < 9.30 10-23-12 Mullet < 10.2 < 10.0 < 24.60 < 9.96 < 24.90 < 8.95 < 9.09 43

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station Table 7.1 Sample Type: Broad Leaf Vegetation Analysis: Iodine-131 and Gamma Isotopic Units: pCi/kg (wet)

Location Collection 1-131 Cs-134 Cs-137 Date Required LLD 60 60 80 BLQ-1 (Indicator) 03-14-12 < 17.30 < 18.90 < 18.40 BLQ-1 (Indicator) 06-13-12 < 30.90 < 34.50 < 37.80 BLQ-1 (Indicator) 09-11-12 < 32.20 < 29.70 < 35.40 BLQ-1 (Indicator) 12-13-12 < 54.20 < 30.20 < 41.90 BLB-1 (Indicator) 03-14-12 < 23.70 < 25.40 < 33.40 BLB-1 (Indicator) 06-13-12 < 37.90 < 34.80 < 28.00 BLB-1 (Indicator) 09-11-12 < 36.10 < 34.60 < 40.10 BLB-1 (Indicator) 12-13-12 < 36.20 < 21.70 < 33.20 BLE-20 (Control) 03-14-12 < 28.00 < 22.50 < 26.60 BLE-20 (Control) 06-13-12 < 39.60 < 44.40 < 43.70 BLE-20 (Control) 09-11-12 < 34.50 < 28.00 < 29.90 BLE-20 (Control) 12-13-12 < 34.30 < 26.00 < 25.20 44

Annual Radiological 2012 Environmental Ooeratina ReDort Waterford 3 Steam Electric Station Table 8.1 Sample Type: Interlaboratory Comparison Analysis: Gross Beta, Iodine-1 31, Tritium and Gamma Isotopic Units: pCi/kg (wet)

Calendar Year: 2012 2nd Quarter dated June 14. 2012 Analytics E7481- Gross Beta Range of 0.80 125 in Water to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBSlRef Lab Pass/

pCi/L pCiIL Value pCilL uncertainty Ratio Fail I pCiIL I I Cs-1 37 227 1 273 4.57 60 0.83 Pass Analytics E7480- Gamma in Range of 0.80 125 Water to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBS/Ref Lab Pass/

pCi/L pCi/L Value Uncertainty Ratio Fail pCi/L pCi/L 1-131 102 27.0 99.4 1.66 60 1.03 Pass Ce-141 112 9.00 112 1.87 60 1.00 Pass Cr-51 538 67.0 548 9.14 60 0.98 Pass Cs-134 219 11.0 238 3.97 60 0.92 Pass Cs-1 37 279 9.00 289 4.82 60 0.97 Pass Co-58 117 12.0 126 2.10 60 0.93 Pass Mn-54 192 20.0 180 3.01 60 1.06 Pass Fe-59 198 24.0 174 2.91 60 1.14 Pass Zn-65 300 40.0 272 4.54 60 1.10 Pass Co-60 485 25.0 484 8.09 60 1.00 Pass Analytics E7483- Gamma in Range of 0.80 125 Milk to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBS/Ref Lab Pass/

pCi/L pCi/L Value pCi/L uncertainty Ratio Fail pCilL 1-131 67.0 25.0 99.7 1.66 60 0.67 Fail Ce-141 85.0 13.0 82.2 1.37 60 1.03 Pass Cr-51 399 82.0 402 6.71 60 0.99 Pass Cs-134 150 7.00 174 2.91 60 0.86 Pass Cs-137 197 11.0 212 3.54 60 0.93 Pass Co-58 89.0 10.0 92.3 1.54 60 0.96 Pass Mn-54 139 13.0 132 2.21 60 1.05 Pass Fe-59 132 11.0 128 2.13 60 1.03 Pass Zn-65 207 27.0 199 3.33 60 1.04 Pass Co-60 346 9.00 355 5.93 60 0.97 Pass Analytics E7482- 1-131 Range of 0.80 125 cartridge to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBS/Ref Lab Pass/

pCi/each pCi/each Value uncertainty Ratio Fail pCi/each pCi/each 1-131 94.0 6.00 96.4 1.61 60 0.97 Pass 45

Annual Radiological 2012 Environmental ODeratina Reoort Waterford 3 Steam Electric Station Table 8.1 Sample Type: Interlaboratory Comparison Analysis: Gross Beta, Iodine-1 31, Tritium and Gamma Isotopic Units: pCi/kg (wet) 3rd Quarter dated Sept. 13, 2012 Analytics E8137- Gross Beta Range of 0.80 125 filter to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBSIRef Lab Pass/

pCi/filter pCi/filter Value uncertainty Ratio Fail pCilfilter pCi/filter Cs-137 88.3 0.210 90.5 1.51 60 0.98 Pass Analytics E8136- H-3 Range of 0.80 125 in water to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBSIRef Lab Pass/

pCilL pCilL Value pCi/L uncertainty Ratio Fail pCl/L H-3 13500 103 13000 217 60 1.03 Pass Analytics E8138- Gamma Range of 0.80 125 Filter to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBS/Ref Lab Pass/

pCi/filter pCi/filter Value Uncertainty Ratio Fall pCifilter pCilfilter Ce-141 134 8 134 2.23 60 1.00 Pass Cs-134 78.9 1.6 88.3 1.47 60 0.89 Pass Cs-137 143 2.0 142 2.37 60 1.01 Pass Co-58 77.8 3.6 82.0 1.37 60 0.95 Pass Mn-54 169 9.5 160 2.67 60 1.06 Pass Fe-59 133 12.8 124 2.07 60 1.07 Pass Zn-65 161 8.5 157 2.62 60 1.02 Pass Co-60 127 2.6 124 2.07 60 1.03 Pass Analytics E8139- Gamma Soil Range of 0.80 125 to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBS/Ref Lab Pass/

pCi/g pCilg Value pCi/g Uncertainty Ratio Fail pCi/g Ce-141 0.471 0.108 0.419 0.00699 60 1.12 Pass Cs-134 0.256 0.013 0.277 0.00462 60 0.92 Pass Cs-137 0.529 0.022 0.536 0.00895 60 0.99 Pass Co-58 0.240 0.030 0.257 0.00429 60 0.93 Pass Mn-54 0.515 0.009 0.501 0.00836 60 1.03 Pass Fe-59 0.444 0.035 0.389 0.00649 60 1.14 Pass Zn-65 0.508 0.050 0.492 0.00822 60 1.03 Pass Co-60 0.388 0.014 0.389 0.00649 60 1.00 Pass 46

Annual Radiological 2012 Environmental ODeratine ReDort Waterford 3 Steam Electric Station 2r'd sample of Gamma in Milk Analytics E10513 Gamma in Range of 0.80 Milk to 1.25 Nuclide RBS Mean RBS 1-s Ref Lab Ref Lab Resolution RBS/Ref Lab Pass/

pCi/L pCi/L Value pCi/L uncertainty Ratio Fail pCilL 1-131 105 9 100 1.67 60 1.05 Pass Ce-141 196 13 187 3.13 60 1.05 Pass Cr-51 495 74 472 7.88 60 1.05 Pass Cs-134 215 17 214 3.57 60 1.01 Pass Cs-137 272 17 266 4.44 60 1.02 Pass Co-58 218 14 208 3.47 60 1.05 Pass Mn-54 218 11 208 3.48 60 1.05 Pass Fe-59 257 9 252 4.21 60 1.02 Pass Zn-65 316 23 301 5.02 60 1.05 Pass Co-60 396 8 400 6.68 60 0.99 Pass One result was outside the control limits for accuracy in the 2012 Interlaboratory Comparison program studies. The 1-131 in milk had a River Bend (RBS) to Reference Lab (EZA) ratio of 0.67 with the passing lower limit being 0.80 (Ratio for Agreement range of 0.80 - 1.25). The mean for RBS was 67 pCi/L while EZA's mean was 99.7 pCi/L.

Review of the data results for 1-131 in milk shows consistently low values whereas the other isotopes did not and were well within the passing range. Analytics was contacted to see if there was a low bias of reporting 1-131 in milk by other participants. All other participant results looked normal with no low bias responses with the sample.

A mixed gamma in water sample was also counted in the same time period as the mixed gamma in milk. The 1-131 in the water sample had a RBS to EZA ratio of 1.03 indicating that RBS had a slightly higher result than the known EZA value. Data review of the weekly system background and daily background checks were performed and showed nothing out of the ordinary. There are no anomalies to explain the low reporting value of 1-131 in milk. The technician that counted the sample is no longer with the lab so he cannot be questioned as to his thoughts on the low 1-131 results. A new milk sample was ordered. The 1-131 ratio results for the new sample were 1.05 which is well within the passing range. There are no sample preparation procedures or techniques to change in order to eliminate the low sample results in the future.

Environmental samples are analyzed and reported with a ninety-five percent confidence level. A known standard is counted daily prior to any samples and must read within the control limits of the decay corrected activity; therefore, there is no impact accessed on previously reported data due to these results.

47

Annual Radiological 2012 Environmental Operatina Report Waterford 3 Steam Electric Station ATTACHMENT 2 Statistical Comparisons 48

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station TABLE OF CONTENTS TABLE 2.1 STATISTICAL COMPARISON OF 2012 TLD MEASUREMENTS FROM STATIONS GROUPED BY DISTANCE 52 TABLE 2.2 STATISTICAL COMPARISON OF 2012 TLD RADIATION DOSE TO HISTORICAL DATA BY LOCATION 53 TABLE 2.3 STATISTICAL COMPARISON OF 2012 GROSS BETA ACTIVITY MEASUREMENTS ON AIR PARTICULATE FILTERS 54 TABLE 2.4 STATISTICAL COMPARISON OF 2012 GROSS BETA ACTIVITY MEASUREMENTS IN DRINKINGiSURFACE WATER SAMPLES 55 49

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Statistical Analyses Calculation of the Mean and Standard Deviation The mean and standard deviation for different groups of analyses are calculated using the following equations:

i=l and where:

X = mean of sample population, S = standard deviation of sample population, n = number of samples in sample population, and Xi = value of the i'th sample.

50

Annual Radiological 2012 Environmental ODeratina Reoort Waterford 3 Steam Electric Station

• Comparing Two Sample Population Means The means of two sample populations are compared for statistical difference using the standard "t" test. The use of the test requires the assumption that the data within the populations are normally distributed and that the true standard deviations of the mean are equal for both populations. The standard "t" test tests the hypothesis that the true means of both populations are equal. The "t" value can be calculated from the equation below (obtained from the CRC Standard Mathematical Tables, 26th Edition (1981)):

X-Y where:

t calculated "t" value, x mean of first data set, y mean of second data set, 17x number of variables in first data set, Sx standard deviation of first data set, Sy number of variables in second data set, and Sy standard deviation of second data set.

The calculated "t" value is used to test the hypothesis that the true mean of the first population (m x) is equal to the true mean of the second population (m y) assuming that the true standard deviation of both populations are equal (m x = m y). The calculated "t" value is compared to a tabular "t" value such that:

a if t > t ln then reject the hypothesis when m x > m y,

b. if t < -t p,n then reject the hypothesis when m x < m y,

c. if t > t J/2,n then reject the hypothesis when m , = m.y, where t p/2,n and t p,n are the tabular "t" values, with a preselected error (5%), confidence level (1 -

p) or (1- p/2), and degrees of freedom n = n, + ny - 2. Tabular values of the "t" were obtained from the CRC Standard Mathematical Tables, 26th Edition (1981).

51

Annual Radiological 2012 Environmental Operating Report Waterford 3 Steam Electric Station Mean 11 13 12 (mRem/std.qtr.)

Standard Deviation 1.56 1.45 1.16 (mRem/std. qtr.)

Number in Sample 63 25 27 Calculated "t" Value 0.97 3.46 NA*

(comparison of stations 0-2 and 2-5 miles from the plant to stations >5 miles from the plant)

Tabular "t" Value at 1.991 (a) 2.011(b) NA*

95% Confidence(t0 .025 ,n) i I i (a) Results indicate the mean for stations located 0-2 miles from the plant are statistically identical to the mean for stations located more than 5 miles from the plant.

(b) Although the TLD stations located 2-5 miles from the plant are statistically higher than those located more than 5 miles from the plant, the quarterly doses measured in 2012 are consistent with historical data at each location as shown in Table 2.2.

• Not Applicable 52

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station A-2 1.4 10 18 14 0.4 13 A-5 13 1.4 10 17 13 1.7 12 16 B-1 13 1.4 10 19 13 0.7 12 14 B-4 13 1.2 11 17 14 0.0 14 14 C-1 9 1.3 7 13 9 0.4 9 10 D-2 12 2.0 8 19 10 0.4 10 11 D-5 12 1.4 9 18 12 0.0 12 12 E-1 11 1.2 9 16 11 0.4 11 12 E-5 12 1.7 9 17 13 0.4 12 13 E-15 11 1.7 8 16 11 0.5 10 11 E-30* 11 1.5 8 17 10 0.0 10 10 F-2 12 1.2 10 17 12 0.4 12 13 F-4 14 1.5 11 19 15 0.4 14 15 F-9 12 1.4 7 17 12 0.4 12 13 G-2 15 1.4 11 19 11 0.4 10 11 G-4 11 1.3 9 16 11 0.4 10 11 G-8 12 2.0 8 19 11 0.7 10 12 H-2 13 1.3 10 18 12 0.4 12 13 H-8 12 1.2 9 17 12 0.5 11 12 J-2 13 1.4 10 17 11 0.5 10 11 J-15 13 1.3 11 17 13 0.5 12 13 K-1 11 1.3 9 16 11 0.7 10 12 L-1 13 1.4 10 16 14 0.5 13 14 M-1 12 1.4 9 18 10 0.4 10 11 N-1 13 1.5 8 18 14 0.5 13 14 P-1 10 1.3 7 15 10 0.7 9 11 P-6 14 1.4 10 19 13 0.4 13 14 Q-1 12 1.2 10 16 13 0.8 12 14 Q-5 13 2.2 9 18 13 0.5 12 13 R-1 10 2.0 6 15 10 0.5 9 10 R-6 12 2.5 8 18 11 0.5 10 11

• Control Location

• • Significant outliers were removed from data sets.

PERS data indicates an average of 20 mrem for all indicator locations with a range of 11 to 33 and an average control of 18 mrem.

53

Annual Radiological 2012 Environmental ODeratinc ReDort Waterford 3 Steam Electric Station Mean 24 25 25 23 25 (1O3pCi/m 3 )

Standard Deviation 9.41 9.01 9.20 7.36 9.05 (1O' 3pCi/m3 )

Number in Sample 26 26 26 24 25 Calculated "t" Value 0.41 0.17 0.04 0.82 NA*

(comparison of the indicator stations to the control station)

Tabular "t" Value at 2.012(a) 2.012(a) 2.01 2(a) 2.014(a) NA*

95% Confidence(to.o25,n) a a a a a (a) Results indicate the mean for the indicator stations is statistically identical to the mean for the control station.

• Not Applicable 54

Annual Radiological 2012 Environmental Operatinq Report Waterford 3 Steam Electric Station TARI 1: 9 A Mean 7.5 5.4 5.4 (pCilliter)

Standard Deviation 3.91 1.85 2.21 (pCi/liter)

Number in Sample 4 3 3 Calculated "t" Value 0.95 0.02 NA*

(comparison of the indicator stations to the control station)

Tabular "t" Value at 2.571 (a) 2.776(a) NA*

95% Confidence(tO. 025,n)

.1.

(a) Results indicate the mean for the indicator station is statistically identical to the mean for the control station.

• Not Applicable 55