W3F1-2019-0028, (Waterford 3) - Annual Radiological Environmental Operating Report - 2018

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(Waterford 3) - Annual Radiological Environmental Operating Report - 2018
ML19115A419
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Site: Waterford Entergy icon.png
Issue date: 04/25/2019
From: Wood P
Entergy Operations
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Document Control Desk, Office of Nuclear Reactor Regulation
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W3F1-2019-0028
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  • ~ Ente,gy Entergy Operations, Inc.

17265 River Road Killona, LA 70057-3093 Tel 504 464 3786 Paul Wood Manager - Regulatory Assurance Waterford 3 W3F1-2019-0028 April 25, 2019 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Subject:

Annual Radiological Environmental Operating Report -2018 Waterford Steam Electric Station, Unit 3 (Waterford 3)

Docket No. 50-382 License No. NPF-38 Attached is the Annual Radiological Environmental Operating Report for the period of January 1 through December 31, 2018. This report is submitted pursuant to the Requirements of Waterford 3 Technical Specification Section 6.9.1.7.

This report contains no new commitments. Please contact Paul Wood, Regulatory Assurance Manager, at (504) 464-3786 if you have questions regarding this information.

Respectfully, PW/llb

Attachment:

Annual Radiological Environmental Operating Report - 2018 cc: NRC Region IV Regional Administrator NRC Senior Resident Inspector - Waterford Steam Electric Station Unit NRC Project Manager Entergy Legal, General Sr Counce!

Attachment to W3F1-2019-0028 Annual Radiological Environmental Operating Report - 2018 (52 pages)

Page 1 of 52 Plant: Waterford 3 YEAR: 2018 Docket Number: 50-382 Annual Radiological Environmental Operating Report

Plant: Waterford 3 Year: 2018 Page 2 of 52 Annual Radiological Environmental Operating Report TABLE OF CONTENTS 1.0 EXECUTIVE

SUMMARY

.............................................................................................................5 1.1 Radiological Environmental Monitoring Program ...................................................................5 1.2 Reporting Levels ...................................................................................................................5 1.3 Comparison to State Program ...............................................................................................6 1.4 Sample Deviations ................................................................................................................6 1.5 Program Modifications...........................................................................................................6

2.0 INTRODUCTION

........................................................................................................................6 2.1 Radiological Environmental Monitoring Program ...................................................................6 2.2 Pathways Monitored ..............................................................................................................7 2.3 Land Use Census..................................................................................................................7 3.0 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM REQUIREMENTS ......................8 4.0 INTERPRETATION AND TRENDS OF RESULTS ....................................................................19 4.1 Air Particulate and Radioiodine Sample Results..................................................................19 4.2 Thermoluminescent Dosimetry (TLD) Sample Results ........................................................20 4.3 Waterborne Sample Results................................................................................................21 4.3.1 Surface Water Results ............................................................................................................... 21 4.3.2 Drinking Water Results .............................................................................................................. 21 4.3.3 Sediment Sample Results .......................................................................................................... 22 4.4 Ingestion Sample Results ....................................................................................................22 4.4.1 Fish Sample Results ................................................................................................................... 22 4.4.2 Broad Leaf Vegatation Sample Results ...................................................................................... 22 4.4.3 Milk Sample Results .................................................................................................................... 22 4.5 Land Use Census Results ...................................................................................................23 4.6 Interlaboratory Comparison Results ....................................................................................25 5.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

..........................25

Plant: Waterford 3 Year: 2018 Page 3 of 52 Annual Radiological Environmental Operating Report ATTACHMENTS - Sample Deviations ........................................................................................................30 - Monitoring Results Tables ............................................................................................31 - Interlaboratory Comparison Program Results ...............................................................45 TABLES Table 1: Exposure Pathway - Airborne ........................................................................................8 Table 2: Exposure Pathway - Direct Radiation ............................................................................9 Table 3: Exposure Pathway - Waterborne .................................................................................13 Table 4: Exposure Pathway - Ingestion .....................................................................................14 Table 5: Land Use Census - 2018 Nearest Residence and Milk Animal Within 5 Miles .............24 Table 6: Radiological Environmental Monitoring Program Summary .........................................26 Table 7: Sample Deviations Table.............................................................................................30 Table 8: Air Particulate Data Table............................................................................................31 Table 9: Radioiodine Cartridge Data Table ...............................................................................32 Table 10: Air Particulate Composite Data Table ........................................................................33 Table 11: Thermoluminescent Dosimeters - Inner Ring .............................................................34 Table 12: Thermoluminescent Dosimeters - Outer Ring ............................................................34 Table 13: Thermoluminescent Dosimeters - Special Interest Areas ..........................................35 Table 14: Thermoluminescent Dosimeters - Control..................................................................35 Table 15: Surface Water - Gamma............................................................................................36 Table 16: Surface Water - Tritium .............................................................................................37 Table 17: Drinking Water - Gamma and Gross-Beta .................................................................38 Table 18: Drinking Water - Iodine-131 .......................................................................................39 Table 19: Drinking Water - Tritum .............................................................................................40 Table 20: Sediment - Gamma ...................................................................................................41 Table 21: Fish - Gamma............................................................................................................42

Plant: Waterford 3 Year: 2018 Page 4 of 52 Annual Radiological Environmental Operating Report TABLES Cont'd Table 22: Broad Leaf Vegatation - Gamma ...............................................................................43 Table 23: Milk - Gamma and Iodine-131 ...................................................................................44 Table 24: Analytics Environmental Radioactivity Cross Check Program....................................47 Table 25: DOE's Mixed Analyte Performance Evaluation Program (MAPEP) ............................51 Table 26: ERA Environmental Radioactivity Cross Check Program ..........................................52 FIGURES Figure 1: Exposure Pathway .....................................................................................................15 Figure 2: REMP Samples Within 2 Miles of Waterford 3............................................................16 Figure 3: REMP Samples Within 2 to 10 miles of Waterford 3 ...................................................17 Figure 4: REMP Samples Within 10 to 50 miles of Waterford 3 .................................................18 Figure 5: TLD Radiation Dose Comparison By Year .................................................................20

Plant: Waterford 3 Year: 2018 Page 5 of 52 Annual Radiological Environmental Operating Report 1.0 EXECUTIVE

SUMMARY

1.1 Radiological Environmental Monitoring Program The Annual Radiological Environmental Operating Report presents data obtained through analyses of environmental samples collected for Waterford 3 Radiological Environmental Monitoring Program (REMP) for the period January 1 through December 31, 2018. This report fulfills the requirements of Waterford 3 Technical Specification 6.9.1.7.

All required lower limit of detection (LLD) capabilities were achieved in all sample analyses during 2018, as required by Waterford 3s Technical Requirements Manual (TRM) Table 3.12-2. No measurable levels of radiation above baseline levels attributable to Waterford 3's operation were detected in the vicinity of Waterford 3.

The 2018 Radiological Environmental Monitoring Program thus substantiated the adequacy of source control and effluent monitoring at Waterford 3 with no observed impact of plant operations on the environment.

Waterford 3 established the REMP prior to the station becoming operational 1985 to provide data on background radiation and radioactivity normally present in the area.

Waterford 3 has continued to monitor the environment by sampling air, water, sediment, fish and broad leaf, as well as measuring direct radiation. Waterford 3 also samples milk if milk-producing animals used for human consumption are present within five miles (8 km) of the plant.

The REMP includes sampling indicator and control locations within an approximate 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. Waterford 3 personnel compare indicator results with control and preoperational results to assess any impact Waterford 3 operation might have had on the surrounding environment.

In 2018, environmental samples were collected for radiological analysis. The results of indicator locations were compared with control locations and previous studies. It was concluded that no significant relationship exists between Waterford 3 operation and effect on the area around the plant. The review of 2018 data showed radioactivity levels in the environment were undetectable in many locations and near background levels in significant pathways.

1.2 Reporting Levels Waterford 3'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 Waterford 3 effluents. Therefore, 2018 results did not trigger any radiological monitoring program special reports.

Plant: Waterford 3 Year: 2018 Page 6 of 52 Annual Radiological Environmental Operating Report 1.3 Comparison to State Program Waterford 3 personnel compared REMP data to state monitoring programs as results became available. Historically, the programs used for comparison have included the U.S. Nuclear Regulatory Commission (NRC) Thermoluminescent Dosimeter (TLD)

Direct Radiation Monitoring Network and the Environmental Radiological Laboratory -

Department of Environmental Quality Laboratory Services Division (ERL-DEQLSD).

The NRC TLD Network Program was discontinued in 1998. Historically these results have compared to those from the Waterford 3 REMP. Waterford 3s TLD results continue to remain similar to the historical average and continue to verify that plant operation is not affecting the ambient radiation levels in the environment.

The ERL-DEQLSD and the Waterford 3 REMP entail similar radiological environmental monitoring program requirements. These programs include collecting air samples and splitting or sharing sample media such as water, sediment and fish.

Both programs have obtained similar results over previous years.

1.4 Sample Deviations During 2018, environmental sampling was performed for nine media types addressed in the ODCM and for direct radiation. A total of 466 samples of the 475 scheduled were obtained. Of the scheduled samples, 98% were collected and analyzed in accordance with the requirements specified in the ODCM. Attachment 1 contains the listing of sample deviations and actions taken.

1.5 Program Modifications There were no program modifications during the reporting period.

2.0 INTRODUCTION

2.1 Radiological Environmental Monitoring Program Waterford 3 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 applicable 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 Waterford 3.
  • Correlating levels of radiation and radioactivity in the environment with radioactive releases from station operation.

Plant: Waterford 3 Year: 2018 Page 7 of 52 Annual Radiological Environmental Operating Report 2.2 Pathways Monitored The airborne, direct radiation, waterborne and ingestion pathways are monitored as required by Waterford 3 TRM Table 3.12-1. A description of the REMP utilized to monitor the exposure pathways is described in the attached Tables and Figures.

Section 4.0 of this report provides a discussion of 2018 sampling results with Section 5.0 providing a summary of results for the monitored exposure pathways.

2.3 Land Use Census Waterford 3 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 Waterford 3 that would require modifications to the REMP and the Offsite Dose Calculation Manual (ODCM/TRM). 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
3) Garden of greater than 50 m2 (500 ft2) producing broad leaf vegetation.

Waterford 3 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 Waterford 3 and recording results on data sheets.
  • Comparing current census results to previous results.

Plant: Waterford 3 Year: 2018 Page 8 of 52 Annual Radiological Environmental Operating Report 3.0 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM REQUIREMENTS Table 1: Exposure Pathway - Airborne Sample Point Description Sampling and Collection Requirement Type and Frequency Of Analyses Distance and Direction Frequency RADIOIODINE AND PARTICULATES

  • APQ-1 (NW, 0.81 Miles) -

(West bank) Located in Three samples from close to the three SITE Continuous sampler operation

  • Radioiodine Canisters - I-131 analysis biweekly.

soybean/sugarcane field off LA BOUNDARY locations, in different sectors, of with sample collection biweekly, 18 east of LA 18/3141

  • Air Particulate - Gross beta radioactivity analysis the highest calculated annual average ground or more frequently if required by intersection. following filter change. Gamma isotopic analysis of level D/Q. dust loading.
  • APF-1 (ESE, 0.35 Miles) - composite (by location) quarterly.

(West bank) Located on north side of Secondary Meteorological Tower.

  • APC-1 (NE, 0.67 Miles) - (East bank) Located inside Little Gypsy Cooling Water Intake Structure fence.

RADIOIODINE AND PARTICULATES

  • APP-1 (WNW, 0.84 Miles) - Continuous sampler operation
  • Radioiodine Canisters - I-131 analysis biweekly.

(West bank) Located in with sample collection biweekly, One sample from the vicinity of a community or more frequently if required by

  • Air Particulate - Gross beta radioactivity analysis soybean/sugarcane field on having the highest calculated annual average dust loading. following filter change. Gamma isotopic analysis of Short St. in Killona.

ground level D/Q. composite (by location) quarterly.

RADIOIODINE AND PARTICULATES

  • APE-26 (E, 25.8 Miles) - (West Continuous sampler operation
  • Radioiodine Canisters - I-131 analysis biweekly.

bank) Located at Entergy office with sample collection biweekly, One sample from a control location, as for or more frequently if required by

  • Air Particulate - Gross beta radioactivity analysis on Virgil Street in Gretna.

example 15 - 30 km distance and in the least dust loading. following filter change. Gamma isotopic analysis of (Control) prevalent wind direction. composite (by location) quarterly.

Plant: Waterford 3 Year: 2018 Page 9 of 52 Annual Radiological Environmental Operating Report Table 2: Exposure Pathway - Direct Radiation Sample Point Description Distance Sampling and Requirement Type and Frequency Of Analyses and Direction Collection Frequency TLDS

  • A-2 (N, 1.27 Miles) - (East bank)

Located on pole on LA 628 at Zephrin An inner ring of stations, one in each Quarterly

  • mR exposure quarterly.

L. Perriloux Fire House.

meteorological sector in the general area of the SITE BOUNDARY.

  • 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

  • E-1 (E, 0.41 Miles) - (West bank)

Located on pole on LA 18 east of Waterford 3 plant 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.

Plant: Waterford 3 Year: 2018 Page 10 of 52 Annual Radiological Environmental Operating Report Table 2: Exposure Pathway - Direct Radiation Sample Point Description Distance Sampling and Requirement Type and Frequency Of Analyses and Direction Collection Frequency TLDS

  • J-2 (S, 1.38 Miles) - (West bank)

Located on fence south of LA 3127 An inner ring of stations, one in each Quarterly

  • mR exposure quarterly.

west of LA 3127/3142 intersection.

meteorological sector in the general area of the SITE BOUNDARY.

  • 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-1 (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 corner of Railroad Avenue and School House Road.

  • P-1 (WNW, 0.84 Miles) - (West bank)

Located on fence enclosing air sample station APP-1.

  • 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 1 and 2 Cooling Water Intake Structure.

Plant: Waterford 3 Year: 2018 Page 11 of 52 Annual Radiological Environmental Operating Report Table 2: Exposure Pathway - Direct Radiation Sample Point Description Sampling and Requirement Type and Frequency Of Analyses Distance and Direction Collection Frequency TLDS

  • A-5 (N, 4.59 Miles) - (East bank)

Located on pole at intersection of An outer ring of stations, one in ten of the Quarterly

  • mR exposure quarterly.

Oswald Avenue and US 61.

meteorological sectors in the 6 to 8 km ranges from the site.

  • B-4 (NNE, 3.75 Miles) - (East bank)

Located on pole near weigh station on US 61.

  • 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.

  • E-5 (E, 4.08 Miles) - (East bank)

Located on fence on Wesco Street off LA 48.

  • 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.

  • R-6 (NNW, 5.52 Miles) - (East bank)

Located on fence on LA 3223 near railroad crossing.

Plant: Waterford 3 Year: 2018 Page 12 of 52 Annual Radiological Environmental Operating Report Table 2: Exposure Pathway - Direct Radiation Sample Point Description Distance Sampling and Requirement Type and Frequency Of Analyses and Direction Collection Frequency TLDS

  • F-9 (ESE, 8.18 Miles) - (East bank)

Located on fence north of railroad The balance of the stations (five) to be placed Quarterly

  • mR exposure quarterly.

tracks on Jonathan Street.

in special interest areas such as population centers, nearby residences, schools, and in

  • G-8 (SE, 7.74 Miles) - (West bank) one or two areas to serve as control locations. Located on back fence of Luling Entergy Office.
  • E-15 (E, 11.7 Miles) - (East bank)

Located on fence on Alliance Avenue.

  • J-15 (S, 11.7 Miles) - (West bank)

Located on pole near LA 631/Hwy 90 intersection in Des Allemands.

  • E-26 (E, 25.8 Miles) - (West bank)

Located at Entergy office on Virgil Street in Gretna. (Control)

Plant: Waterford 3 Year: 2018 Page 13 of 52 Annual Radiological Environmental Operating Report Table 3: Exposure Pathway - Waterborne Sample Point Description Distance Sampling and Requirement Type and Frequency Of Analyses and Direction Collection Frequency

  • SWP-7 (WNW, 7.37 Miles) - (West bank) Located at St. John Parish Composite sample over
  • Gamma isotopic analysis and tritium analysis Waterworks in Edgard. (Control) one quarter period. quarterly.
  • SWF-2 (ESE, 1.51 Miles) - (West SURFACE WATER bank) Located at Dow Chemical Plant One sample upstream and one sample drinking water canal.

downstream.

  • 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.

DRINKING WATER

  • DWP-7 (WNW, 7.37 Miles) - (West bank) Located at St. John Parish One sample upstream and one sample Composite sample over
  • I-131 analysis on each composite when the dose Waterworks in Edgard. (Control) downstream. one month period when I- calculated for the consumption of the water is
  • DWF-2 (ESE, 1.51 Miles) - (West 131 analysis is performed, greater than one mrem per year. Composite for bank) Located at Dow Chemical Plant quarterly composite gross beta and gamma isotopic analyses quarterly.

drinking water canal. otherwise. Composite for tritium analysis quarterly.

  • DWE-5 (E, 4.59 Miles) - (East bank)

Located at St. Charles Parish Waterworks in New Sarpy.

SEDIMENT FROM SHORELINE

  • SHWQ-6 (NW, 5.99 Miles) - (East bank) Located on LA 628 east of One sample upstream and one samples Annually
  • Gamma isotopic analysis annually.

Reserve ferry landing. (Control) downstream.

  • SHWE-3 (E, 2.99 Miles) - (West bank) Located at Foot Ferry landing on LA 18.
  • SHWK-1 (SSW, 0.49 Miles) - (West bank) Located at 40 Arpent Canal south of plant.

Plant: Waterford 3 Year: 2018 Page 14 of 52 Annual Radiological Environmental Operating Report Table 4: Exposure Pathway - Ingestion Sample Point Description Distance Sampling and Collection Requirement Type and Frequency Of Analyses and Direction Frequency MILK

  • Samples from milking animals in the three
  • MKE-3 (E, 2.35 Miles) - (West bank) Quarterly
  • Gamma isotopic and I-131 analysis quarterly.

locations within 5 km distance having the Located at the Zeringues house on LA highest dose potential. If there are none, 18 in Taft.

then, one sample from milking animals in each of the three areas between 5 to 8

  • MKA-31 (N, 31.2 Miles) - (East bank) km distant where doses are calculated to Located at 18736 Sisters Road, be greater than 1 mrem per year. Ponchatoula, LA. (Control)
  • One sample from milking animals at a control location 15 - 30 km distant and in the least prevalent wind direction.

FISH AND INVERTEBRATES

  • FH-2 (Distance/Direction Not Applicable) - Downstream of the plant
  • One sample of each commercially and/or Sample in season, or
  • Gamma isotopic analysis on edible portions discharge structure.

recreationally important species in vicinity annually if they are not annually.

of plant discharge area.

  • FH-3 (Distance/Direction Not seasonal.

Applicable) - (Westbank) Waterways

  • One sample of same species in area not downstream of plant discharge directed influenced by plant discharge. to 40 Arpent Canal.
  • FH-1 (Distance/Direction Not Applicable) - Upstream of the plant intake structure. (Control)

BROAD LEAF VEGATATION

  • BLQ-1 (NW, 0.83 Miles) - (West bank)

Located near air sample station.

  • Samples of one to three different types of Quarterly during the growing
  • Gamma isotopic and I-131 analysis quarterly.

broadleaf vegetation grown nearest each

  • BLB-1 (NNE, 0.81 Miles) - (East bank) season.

of the two different off-site locations of Located west of Little Gypsy on LA 628 highest predicted annual average ground level D/Q if milk sampling is not

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

Plant: Waterford 3 Year: 2018 Page 15 of 52 Annual Radiological Environmental Operating Report Figure 1: Exposure Pathway

Plant: Waterford 3 Year: 2018 Page 16 of 52 Annual Radiological Environmental Operating Report Figure 2: REMP Samples Within 2 Miles of Waterford 3

Plant: Waterford 3 Year: 2018 Page 17 of 52 Annual Radiological Environmental Operating Report Figure 3: REMP Samples within 2 to 10 miles of Waterford 3

Plant: Waterford 3 Year: 2018 Page 18 of 52 Annual Radiological Environmental Operating Report Figure 4: REMP Samples within 10 to 50 Miles of Waterford 3

Plant: Waterford 3 Year: 2018 Page 19 of 52 Annual Radiological Environmental Operating Report 4.0 INTERPRETATION AND TRENDS OF RESULTS 4.1 Air Particulate and Radioiodine 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-131 and gamma radionuclides (quarterly air particulate filter composites only).

Waterford 3 did not detect any gamma radionuclides in the quarterly air particulate composites or Iodine-131 in the radioiodine cartridges during the reporting period as has been the case in previous years. Indicator gross beta air particulate results for 2018 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/m3.

Monitoring Period Result 2008 - 2017 (Minimum Value) 0.018 2018 Average Value 0.018 2008 - 2017 (Maximum Value) 0.027 Preoperational 0.080 In the absence of plant-related gamma radionuclides, gross beta activity is attributed to naturally occurring radionuclides. Table 6, which include gross beta concentrations and provide a comparison of the indicator and control means and ranges emphasizes the consistent trends seen in this pathway to support the presence of naturally occurring activity. Therefore, it can be concluded that the airborne pathway continues to be unaffected by Waterford 3 operations.

Plant: Waterford 3 Year: 2018 Page 20 of 52 Annual Radiological Environmental Operating Report 4.2 Thermoluminescent Dosimetry (TLD) Sample Results Waterford 3 reports measured dose as net exposure (field reading less transit reading) normalized to 92 days and relies on comparison of the thirty indicator locations to the one control as a measure of plant impact. Waterford 3s comparison of the inner ring, outer ring, and special interest area TLD results to the control, as seen in Table 6, identified no noticeable trend that would indicate that the ambient radiation levels are being affected by plant operations. In addition, the indicator value of 12.0 millirem (mrem) shown in the TLD radiation dose comparison graph below shows the 2018 concentration is comparable to historic results. Overall, Waterford 3 concluded that the ambient radiation levels are not being affected by plant operations.

The average exposure rates during 2018 are consistent with those from the preoperational program and the previous five years of operation. 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 9 to 15 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 6, shows that the average indicator locations are slightly higher than that of the control. As shown in Attachment 2, Tables 11-14, several indicator locations are higher than the control by a few mrem with a maximum difference of seven mrem. 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 Waterford 3 plant operations that can affect background radiation in the vicinity of each TLD station.

Plant: Waterford 3 Year: 2018 Page 21 of 52 Annual Radiological Environmental Operating Report 4.3 Waterborne Sample Results Analytical results for 2018 drinking water/surface water samples were similar to those reported in previous years. Gamma radionuclides, iodine-131 and tritium analytical results for 2018 waterborne samples were below the ODCM-required LLD similar to those reported in previous years. Gross Beta continues to be detected in Waterford 3 drinking water samples consistent with historical results. These results are further explained below.

4.3.1 Surface Water Results Samples were collected from one indicator location and analyzed for gamma radionuclides and tritium. Tritium and gamma radionuclides were below detectable limits which is consistent with results seen in previous operational years. Therefore, the operation of Waterford 3 had no definable impact on this waterborne pathway during 2018.

4.3.2 Drinking/Surface Water Results Drinking water samples also serve as surface water samples for Waterford 3.

Therefore, monthly and quarterly gamma spectroscopy and tritium analyses of drinking water also satisfy the surface water sampling requirement.

Samples were collected from two indicators and one control location.

Drinking/Surface water samples were analyzed for, gamma radionuclides, gross beta, iodine-131, and tritium. Gamma radionuclides, iodine-131, and tritium concentrations were below the LLD limits at the indicator and control locations. Gross beta was detected in both indicator and control locations. The average concentration of the indicator locations is comparable to the 2008 - 2017 operational years and below background preoperational data as shown below. Gross beta results from 2018 are summarized in Table 6. Results are reported as annual average pCi/L.

Monitoring Period Result 2008 - 2017 (Minimum Value) 3.0 2018 Value 5.2 2008 - 2017 (Maximum Value) 6.6 Preoperational 7.0 Table 17, which includes gross beta concentrations for 2018, provides a comparison of the indicator and control means. It shows that the waterborne pathway continues to remain at background levels. Waterford 3 personnel have noted no definable trends associated with drinking water results at the indicator location. Therefore, the operation of Waterford 3 had no definable impact on this waterborne pathway during 2018 and levels of radionuclides remain similar to those obtained in previous operational years.

Plant: Waterford 3 Year: 2018 Page 22 of 52 Annual Radiological Environmental Operating Report 4.3.3 Sediment Sample Results Sediment samples were collected from two indicators and one control location in 2018 and analyzed for gamma radionuclides. Gamma radionuclides were below the LLD limits at both indicator and control locations. Waterford 3 operations had no significant impact on the environment or public by this waterborne pathway.

4.4 Ingestion Sample Results 4.4.1 Fish Sample Results Fish samples were collected from two indicator and one control location and analyzed for gamma radionuclides. In 2018, gamma radionuclides were below detectable limits which are consistent with the preoperational monitoring period and operational results. Therefore, based on these measurements, Waterford 3 operations had no significant radiological impact upon the environment or public by this ingestion pathway.

4.4.2 Broad Leaf Vegetation Sample Results The REMP has detected radionuclides prior to 1990 that are attributable to other sources. These include the radioactive plume release due to reactor core degradation at Chernobyl Nuclear Power Plant in 1986 and atmospheric weapons testing.

In 2018, broad leaf vegetation samples were collected from two indicator and one control location and analyzed for iodine-131 and gamma radionuclides. The 2018 levels remained undetectable, as has been the case in previous years. Therefore, based on these measurements, Waterford 3 operations had no significant radiological impact upon the environment or public by this ingestion pathway.

4.4.3 Milk Sample Results Milk samples from the indicator location were unavailable for collection during 2018, broad leaf vegetation was therefore performed as required by TRM 3.12-1; results are in section 4.4.2. Milk samples were collected from one control location and analyzed for iodine-131 and gamma radionuclides. Cesium-137 was measured at concentrations consistent with the preoperational program as well as operational years 2008-2017 seen below; concentrations were well below the reporting level required by the TRM. Therefore, Waterford 3 concluded that plant operations had no significant impact on this pathway during 2018.

Monitoring Period Result 2008 - 2017 (Minimum Value) 5.0 2018 Value 4.8 2008 - 2017 (Maximum Value) 5.4

Plant: Waterford 3 Year: 2018 Page 23 of 52 Annual Radiological Environmental Operating Report 4.5 Land Use Census Results The latest land use census was conducted September 17 - September 18, 2018. 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.

The land use census identified several changes. The nearest residence in sector D has changed to 111 Kenner Drive at a distance of 0.9 miles from the plant. The goats located 2.4 miles from the plant in sector E have been removed. Beef cows from sector G 4.6 miles from the plant, sector M 1.2 miles from the plant, and sector N 1.0 miles from the plant were removed. There were no changes in the nearest garden, milk cows, or food products in 2018. 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 Waterford 3, no REMP sampling location changes are necessary. Results of the 2018 biennial census are shown in Table 5.

Plant: Waterford 3 Year: 2018 Page 24 of 52 Annual Radiological Environmental Operating Report Table 5: 2018 Land Use Census Results Nearest Nearest Nearest Nearest Nearest Food Directio Nearest Sector Residence Garden Milk Cow Beef Cow Products n Goat (miles)

(miles) (miles) (miles) (miles) (miles)

A N 1.3 1.7 ^ 4.8 *4.8 4.1 B NNE 1.1 1.3 ^ 1.7 ^ 1.3 C NE 0.9 1.0 ^ ^ ^ ^

D ENE 0.9 0.9 ^ ^ ^ ^

E E 2.2 2.3 **2.3 2.3 *3.2 0.3 F ESE 3.1 2.3 ^ 2.3 ^ 0.3 G SE 4.0 4.1 ^ 2.4 ^ 0.3 H SSE ^ ^ ^ ^ ^ 0.3 J S ^ ^ ^ ^ ^ 0.5 K SSW ^ ^ ^ ^ ^ 0.5 L SW ^ ^ ^ ^ ^ 0.5 M WSW ^ 1.4 ^ ^ ^ 0.5 N W 1.0 1.1 ^ ^ ^ 0.6 P WNW 0.9 0.9 ^ ^ ^ 0.6 Q NW 0.9 1.1 ^ ^ ^ 0.6 R NNW 3.0 3.0 ^ 4.9 ^ 2.6 Symbol Comment

^ Nothing was located within a five-mile radius of Waterford 3.

  • Animals were located at this distance from Waterford 3, but the milk is not used for human consumption.
    • Milk samples are being obtained from animals at this location (MKE-3) for REMP.

Plant: Waterford 3 Year: 2018 Page 25 of 52 Annual Radiological Environmental Operating Report 4.6 Interlaboratory Comparison Results Attachment 3 contains result summary for Interlaboratory Comparison program for Teledyne Brown Engineering to fulfill the requirements of section 5.7.2 of the ODCM.

5.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

1. Table 6, Radiological Environmental Monitoring Program Summary, summarizes data for the 2018 REMP program.

Plant: Waterford 3 Year: 2018 Page 26 of 52 Annual Radiological Environmental Operating Report Table 6: Radiological Environmental Monitoring Program Summary Indicator Locations Indicator(4) Control Number of Sample Type Type / Number Location Mean (F)(3)

LLD (2) Mean (F)(3) Locations Mean Non Routine (Units) of Analyses(1) [Highest Annual [Range]

[Range] (F)(3) [Range] Results(5)

Mean]

GB / 130 0.01 0.0182 (104 / 104) APP-1 0.0185 (26 / 26) 0.0187 (26 / 26) 0

[0.009 - 0.035] (119°, 0.84 mi) [0.010 - 0.028] [0.011 - 0.028]

Air Particulates (pCi/m3) GS / 20 Cs-134 0.05 < LLD N/A N/A < LLD 0 Cs-137 0.06 < LLD N/A N/A < LLD 0 Airborne Iodine I-131 / 130 0.07 < LLD N/A N/A < LLD 0 (pCi/m3)

Inner Ring TLDs Gamma / 64 (6) 11.1 (64 / 64) L-1 13.5 (4 / 4) N/A 0 (mR/Qtr) [8.6 - 14.0] (42°, 1.06 mi) [12.9 - 14.0]

Outer Ring TLDs Gamma / 39 (6) 12.5 (39 / 39) P-6 13.7 (4 / 4) N/A 0 (mR/Qtr) [8.9 - 15.7] (107°, 5.58 mi) [12.8 - 14.3]

Special Interest Gamma / 15 (6) 10.7 (15 / 15) F-9 11.1 (4 / 4) N/A 0 TLDs (mR/Qtr) [9.9 - 11.6] (294°, 8.18 mi) [10.5 - 11.5]

Control TLDs Gamma / 4 (6) N/A N/A N/A 9.2 (4 / 4) 0 (mR/Qtr) [8.4 - 9.7]

Plant: Waterford 3 Year: 2018 Page 27 of 52 Annual Radiological Environmental Operating Report Table 6: Radiological Environmental Monitoring Program Summary Indicator Locations Indicator(4) Control Number of Sample Type Type / Number Location Mean (F)(3)

LLD (2) Mean (F)(3) Locations Mean Non Routine (Units) of Analyses(1) [Highest Annual [Range]

[Range] (F)(3) [Range] Results(5)

Mean]

H-3 / 4 2000 < LLD N/A N/A < LLD 0 GS / 13 Mn-54 15 < LLD N/A N/A < LLD 0 Co-58 15 < LLD N/A N/A < LLD 0 Fe-59 30 < LLD N/A N/A < LLD 0 Co-60 15 < LLD N/A N/A < LLD 0 Surface Water Zn-65 30 < LLD N/A N/A < LLD 0 (pCi/L)

Nb-95 15 < LLD N/A N/A < LLD 0 I-131 15 < LLD N/A N/A < LLD 0 Zr-95 15 < LLD N/A N/A < LLD 0 Cs-134 15 < LLD N/A N/A < LLD 0 Cs-137 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

Plant: Waterford 3 Year: 2018 Page 28 of 52 Annual Radiological Environmental Operating Report Table 6: Radiological Environmental Monitoring Program Summary Indicator Locations Indicator(4) Control Number of Sample Type Type / Number Location Mean (F)(3)

LLD (2) Mean (F)(3) Locations Mean Non Routine (Units) of Analyses(1) [Highest Annual [Range]

[Range] (F)(3) [Range] Results(5)

Mean]

GB / 12 4 5.19 (8 / 8) DWF/SWF-2 6.11 (4 / 4) 5.04 (4 / 4) 0

[3.34 - 9.91] (302°, 1.51 mi) [4.36 - 9.91] [3.76 - 6.20]

I-131 / 37 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 Drinking/Surface Co-58 15 < LLD N/A N/A < LLD 0 Water (pCi/L)

Fe-59 30 < 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 Nb-95 15 < LLD N/A N/A < LLD 0 Zr-95 15 < LLD N/A N/A < LLD 0 Cs-134 15 < LLD N/A N/A < LLD 0 Cs-137 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 GS / 3 Sediment Cs-134 150 < LLD N/A N/A < LLD 0 (pCi/kg dry)

Cs-137 180 < LLD N/A N/A < LLD 0

Plant: Waterford 3 Year: 2018 Page 29 of 52 Annual Radiological Environmental Operating Report Table 6: Radiological Environmental Monitoring Program Summary Indicator Locations Indicator(4) Control Number of Sample Type Type / Number Location Mean (F)(3)

LLD (2) Mean (F)(3) Locations Mean Non Routine (Units) of Analyses(1) [Highest Annual [Range]

[Range] (F)(3) [Range] Results(5)

Mean]

GS / 12 Mn-54 130 < LLD N/A N/A < LLD 0 Co-58 130 < LLD N/A N/A < LLD 0 Fish Fe-59 260 < LLD N/A N/A < LLD 0 (pCi/kg wet) Co-60 130 < LLD N/A N/A < LLD 0 Zn-65 260 < LLD N/A N/A < LLD 0 Cs-134 130 < LLD N/A N/A < LLD 0 Cs-137 150 < LLD N/A N/A < LLD 0 GS / 12 Broad Leaf I-131 60 < LLD N/A N/A N/A 0 (pCi/kg wet) Cs-134 60 < LLD N/A N/A N/A 0 Cs-137 80 < LLD N/A N/A N/A 0 I-131 / 6 1 < LLD N/A N/A N/A 0 GS / 7 Milk Cs-134 15 < LLD N/A N/A N/A 0 (pCi/L) Cs-137 18 N/A N/A N/A 4.75 (4 / 7) 0

[3.31 - 5.65]

Ba-140 15 < LLD N/A N/A N/A 0 La-140 15 < LLD N/A N/A N/A 0 LEGEND:

(1)

- GB = Gross beta; I-131 = Iodine-131; H-3 = Tritium; GS = Gamma scan.

(2)

- LLD = Required lower limit of detection based on Waterford 3 TRM.

(3)

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

(4)

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

(5)

- 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.

(6)

- LLD is not defined in Waterford 3 TRM.

Plant: Waterford 3 Year: 2018 Page 30 of 52 Annual Radiological Environmental Operating Report Attachment 1 Page 1 of 1 Sample Deviations Table 7: Sample Deviations Table Sample Comment Sample Media Date Problem Evaluation / Actions No. Location Affected Milk samples from indicator station MKE-3 were unavailable for all four quarters Sample 1 Milk MKE-3 2018 of 2018 due to the cows not producing enough milk. Broad Leaf vegetation Unavailable sampling was performed in place of the milk indicator sampling.

I-131 (Low Level) analysis could not be performed due to the sample being 2 Milk MKA-31 03/15/18 Spoiled Sample curdled. Sample was shipped for next day but there was a 4-day delay, which caused the sample to spoil. Milk was re-sampled on 3/27/18.

TLD from station G-8 was unable to be analyzed due to sample being missing at 3 TLD G-8 3rd Qtr. Sample Missing time of collection.

The air particulate and charcoal sample collected from 07/30/18-08/13/18 had 07/30/18-4 AP/C APQ-1 Low Volume low volumes due to the sample pump being tripped during the run period.

08/13/18 Sample pump was changed out the next day, 8/14/18.

TLD from station G-4 was unable to be analyzed due to sample being missing at 5 TLD G-4 4th Qtr. Sample missing time of collection.

Reduced TLD from station G-8 has a reduced exposure time; it was found missing during 6 TLD G-8 4th Qtr.

Exposure Time monthly inspection on 11/12/18. TLD was replaced on 11/19/18.

The air particulate and charcoal sample collected from 12/03/18-12/17/18 had 12/03/18-7 AP/C APC-1 Low Volume low volumes due to the sample pump being tripped during the run period. The 12/17/18 sample pump was replaced on the day of discovery, 12/17/18.

Plant: Waterford 3 Year: 2018 Page 31 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 1 of 14 Monitoring Results Tables Table 8: Air Particulate Data Table Analysis: Gross Beta Units: pCi/m3 APF-1 APQ-1 APP-1 APC-1 APE-26(1)

Start Date End Date (Indicator) (Indicator) (Indicator) (Indicator) (Control)

REQUIRED LLD 0.01 0.01 0.01 0.01 0.01 01/02/2018 01/15/2018 0.025 0.023 0.024 0.024 0.025 01/15/2018 01/29/2018 0.020 0.017 0.018 0.015 0.018 01/29/2018 02/12/2018 0.018 0.015 0.016 0.017 0.017 02/12/2018 02/26/2018 0.009 0.010 0.010 0.009 0.011 02/26/2018 03/12/2018 0.019 0.017 0.017 0.018 0.019 03/12/2018 03/26/2018 0.021 0.021 0.023 0.018 0.022 03/26/2018 04/10/2018 0.017 0.016 0.016 0.015 0.017 04/10/2018 04/23/2018 0.019 0.015 0.019 0.019 0.019 04/23/2018 05/07/2018 0.020 0.019 0.021 0.021 0.021 05/07/2018 05/21/2018 0.025 0.029 0.028 0.026 0.027 05/21/2018 06/04/2018 0.015 0.014 0.015 0.014 0.014 06/04/2018 06/18/2018 0.016 0.017 0.018 0.016 0.019 06/18/2018 07/02/2018 0.014 0.014 0.015 0.015 0.019 07/02/2018 07/16/2018 0.013 0.012 0.013 0.013 0.013 07/16/2018 07/30/2018 0.020 0.020 0.021 0.021 0.020 07/30/2018 08/13/2018 0.010 0.035(2) 0.016 0.013 0.012 08/13/2018 08/27/2018 0.021 0.017 0.018 0.019 0.021 08/27/2018 09/10/2018 0.012 0.009 0.011 0.010 0.011 09/10/2018 09/24/2018 0.017 0.015 0.019 0.017 0.018 09/24/2018 10/08/2018 0.016 0.015 0.015 0.015 0.015 10/08/2018 10/22/2018 0.016 0.019 0.019 0.015 0.019 10/22/2018 11/05/2018 0.024 0.027 0.027 0.023 0.026 11/05/2018 11/19/2018 0.019 0.021 0.019 0.018 0.020 11/19/2018 12/03/2018 0.028 0.025 0.028 0.022 0.028 (3) 12/03/2018 12/17/2018 0.020 0.019 0.022 0.033 0.021 12/17/2018 01/01/2019 0.018 0.018 0.017 0.015 0.015 (1)

Station with highest annual mean.

(2)

See Attachment 1, Table 7, Samples Deviations Table, Comment 4 (3)

See Attachment 1, Table 7, Samples Deviations Table, Comment 7

Plant: Waterford 3 Year: 2018 Page 32 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 2 of 14 Monitoring Results Tables Table 9: Radioiodine Cartridge Data Table Analysis: I-131 Units: pCi/m3 APF-1 APQ-1 APP-1 APC-1 APE-26 Start Date End Date (Indicator) (Indicator) (Indicator) (Indicator) (Control)

REQUIRED LLD 0.07 0.07 0.07 0.07 0.07 01/02/2018 01/15/2018 < 0.020 < 0.044 < 0.046 < 0.043 < 0.046 01/15/2018 01/29/2018 < 0.016 < 0.035 < 0.036 < 0.033 < 0.036 01/29/2018 02/12/2018 < 0.037 < 0.014 < 0.035 < 0.035 < 0.035 02/12/2018 02/26/2018 < 0.015 < 0.032 < 0.033 < 0.032 < 0.033 02/26/2018 03/12/2018 < 0.016 < 0.034 < 0.035 < 0.034 < 0.036 03/12/2018 03/26/2018 < 0.016 < 0.017 < 0.018 < 0.017 < 0.018 03/26/2018 04/10/2018 < 0.034 < 0.013 < 0.032 < 0.031 < 0.032 04/10/2018 04/23/2018 < 0.016 < 0.038 < 0.038 < 0.036 < 0.037 04/23/2018 05/07/2018 < 0.015 < 0.036 < 0.036 < 0.034 < 0.035 05/07/2018 05/21/2018 < 0.016 < 0.019 < 0.019 < 0.018 < 0.019 05/21/2018 06/04/2018 < 0.026 < 0.026 < 0.026 < 0.017 < 0.018 06/04/2018 06/18/2018 < 0.013 < 0.015 < 0.015 < 0.014 < 0.015 06/18/2018 07/02/2018 < 0.013 < 0.030 < 0.030 < 0.029 < 0.029 07/02/2018 07/16/2018 < 0.019 < 0.022 < 0.022 < 0.020 < 0.021 07/16/2018 07/30/2018 < 0.018 < 0.021 < 0.021 < 0.020 < 0.021 (1) 07/30/2018 08/13/2018 < 0.008 < 0.049 < 0.018 < 0.017 < 0.017 08/13/2018 08/27/2018 < 0.009 < 0.022 < 0.022 < 0.020 < 0.021 08/27/2018 09/10/2018 < 0.017 < 0.016 < 0.017 < 0.009 < 0.016 09/10/2018 09/24/2018 < 0.009 < 0.021 < 0.022 < 0.020 < 0.021 09/24/2018 10/08/2018 < 0.010 < 0.011 < 0.012 < 0.011 < 0.012 10/08/2018 10/22/2018 < 0.021 < 0.019 < 0.020 < 0.008 < 0.020 10/22/2018 11/05/2018 < 0.012 < 0.012 < 0.012 < 0.010 < 0.012 11/05/2018 11/19/2018 < 0.008 < 0.018 < 0.019 < 0.018 < 0.018 11/19/2018 12/03/2018 < 0.006 < 0.014 < 0.015 < 0.014 < 0.014 (2) 12/03/2018 12/17/2018 < 0.025 < 0.023 < 0.024 < 0.025 < 0.023 12/17/2018 01/01/2019 < 0.007 < 0.016 < 0.017 < 0.015 < 0.017 (1)

See Attachment 1, Table 7, Samples Deviations Table, Comment 4 (2)

See Attachment 1, Table 7, Samples Deviations Table, Comment 7

Plant: Waterford 3 Year: 2018 Page 33 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 3 of 14 Monitoring Results Tables Table 10: Air Particulate Composite Data Table Analysis: Gamma Isotopic Units: pCi/m3 Location Collection Date Cs-134 Cs-137 REQUIRED LLD 0.05 0.06 APF-1 (Indicator) 03/26/2018 < 0.002 < 0.002 APQ-1 (Indicator) 03/26/2018 < 0.003 < 0.002 APP-1 (Indicator) 03/26/2018 < 0.003 < 0.003 APC-1 (Indicator) 03/26/2018 < 0.002 < 0.002 APE-26 (Control) 03/26/2018 < 0.002 < 0.002 APF-1 (Indicator) 07/02/2018 < 0.003 < 0.002 APQ-1 (Indicator) 07/02/2018 < 0.003 < 0.002 APP-1 (Indicator) 07/02/2018 < 0.002 < 0.001 APC-1 (Indicator) 07/02/2018 < 0.003 < 0.002 APE-26 (Control) 07/02/2018 < 0.003 < 0.002 APF-1 (Indicator) 09/24/2018 < 0.003 < 0.003 APQ-1 (Indicator) 09/24/2018 < 0.004 < 0.003 APP-1 (Indicator) 09/24/2018 < 0.004 < 0.002 APC-1 (Indicator) 09/24/2018 < 0.004 < 0.003 APE-26 (Control) 09/24/2018 < 0.002 < 0.002 APF-1 (Indicator) 01/01/2019 < 0.003 < 0.002 APQ-1 (Indicator) 01/01/2019 < 0.002 < 0.002 APP-1 (Indicator) 01/01/2019 < 0.002 < 0.002 APC-1 (Indicator) 01/01/2019 < 0.003 < 0.002 APE-26 (Control) 01/01/2019 < 0.003 < 0.003

Plant: Waterford 3 Year: 2018 Page 34 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 4 of 14 Monitoring Results Tables Table 11: Thermoluminescent Dosimeters - Inner Ring Analysis: Gamma Dose Units: mrem/Std. Qtr.

st nd rd th 1 Qtr 2 Qtr 3 Qtr 4 Qtr Annual Mean Station 2018 2018 2018 2018 2018 A-2 13.0 13.0 11.9 12.3 12.5 B-1 13.7 13.5 11.9 12.5 12.9 C-1 9.7 9.7 8.6 9.5 9.4 D-2 13.0 12.6 11.8 12.3 12.4 E-1 12.1 12.4 10.7 11.7 11.7 F-2 12.6 11.5 11.0 11.7 11.7 G-2 10.8 10.5 9.7 10.1 10.3 H-2 11.3 10.5 10.4 10.9 10.8 J-2 11.0 9.8 9.9 10.2 10.2 K-1 11.1 10.9 10.4 10.8 10.8 (1)

L-1 13.8 13.3 12.9 14.0 13.5 M-1 10.9 10.1 9.6 10.0 10.1 N-1 11.2 10.4 10.3 10.0 10.5 P-1 10.7 9.8 9.3 9.7 9.8 Q-1 12.7 11.8 11.7 12.0 12.1 R-1 10.0 9.4 9.0 9.5 9.5 (1)

Inner ring station with highest annual mean.

Table 12: Thermoluminescent Dosimeters - Outer Ring Analysis: Gamma Dose Units: mrem/Std. Qtr.

st nd rd th 1 Qtr 2 Qtr 3 Qtr 4 Qtr Annual Mean Station 2018 2018 2018 2018 2018 A-5 13.2 12.7 11.8 12.3 12.5 B-4 13.7 14.4 13.4 13.2 13.7 D-5 11.8 12.3 11.1 11.6 11.7 E-5 15.7 12.3 11.8 13.5 13.3 F-4 14.4 13.5 13.5 13.4 13.7 (2)

G-4 12.0 10.7 10.4 Lost 11.0 H-8 13.5 13.0 12.6 12.7 12.9 (1)

P-6 14.3 13.6 12.8 13.5 13.5 Q-5 13.4 12.6 11.4 12.2 12.4 R-6 10.4 9.9 8.9 10.0 9.8 (1)

Outer ring station with highest annual mean.

(2)

See Attachment 1, Table 7, Samples Deviations Table, Comment 5

Plant: Waterford 3 Year: 2018 Page 35 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 5 of 14 Monitoring Results Tables Table 13: Thermoluminescent Dosimeters - Special Interest Areas Analysis: Gamma Dose Units: mrem/Std. Qtr.

st 1 Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean Station 2018 2018 2018 2018 2018 E-15 11.0 10.8 9.9 10.0 10.4 (1)

F-9 11.5 11.2 10.5 10.8 11.0 (2)

G-8 11.4 10.7 Lost 10.0(3) 10.7 J-15 11.6 10.8 10.3 10.5 10.8 (1)

Special interest station with highest annual mean.

(2)

See Attachment 1, Table 7, Samples Deviations Table, Comment 3 (3)

See Attachment 1, Table 7, Samples Deviations Table, Comment 6 Table 14: Thermoluminescent Dosimeters - Control Analysis: Gamma Dose Units: mrem/Std. Qtr.

1st Qtr 2nd Qtr rd 3 Qtr th 4 Qtr Annual Mean Station 2018 2018 2018 2018 2018 E-26 9.7 9.7 8.4 8.9 9.2

Plant: Waterford 3 Year: 2018 Page 36 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 6 of 14 Monitoring Results Tables Table 15: Surface Water - Gamma Analysis: Gamma Isotopic Units: pCi/L Location Start Date End Date Mn 54 Co 58 Fe 59 Co 60 Zn 65 Nb 95 I-131 Zr 95 Cs 134 Cs 137 Ba 140 La 140 REQUIRED LLD 15 15 30 15 30 15 15 15 15 18 15 15 SWK-1 12/27/2017 01/23/2018 < 2.68 < 3.00 < 6.04 < 2.85 < 5.57 < 2.65 < 3.27 < 5.01 < 3.01 < 2.86 < 10.8 < 3.44 (Indicator)

SWK-1 01/23/2018 02/20/2018 < 2.01 < 1.85 < 4.19 < 2.50 < 4.14 < 2.26 < 2.71 < 3.64 < 2.34 < 2.27 < 9.15 < 2.95 (Indicator)

SWK-1 02/20/2018 03/20/2018 < 2.35 < 2.26 < 5.00 < 3.01 < 5.00 < 2.46 < 3.00 < 4.27 < 2.58 < 2.41 < 9.49 < 3.24 (Indicator)

SWK-1 03/20/2018 04/17/2018 < 2.38 < 2.52 < 5.11 < 2.58 < 4.42 < 2.65 < 4.60 < 4.21 < 2.88 < 2.93 < 12.2 < 3.99 (Indicator)

SWK-1 04/17/2018 05/15/2018 < 4.39 < 3.99 < 7.92 < 4.98 < 8.89 < 3.62 < 5.09 < 7.00 < 4.98 < 4.54 < 14.6 < 6.20 (Indicator)

SWK-1 05/15/2018 06/12/2018 < 2.66 < 2.42 < 4.73 < 3.12 < 5.73 < 2.84 < 3.38 < 4.85 < 2.92 < 2.95 < 11.0 < 3.69 (Indicator)

SWK-1 06/12/2018 07/10/2018 < 1.56 < 1.61 < 3.42 < 1.59 < 3.08 < 1.67 < 3.28 < 2.87 < 1.74 < 1.72 < 8.10 < 2.20 (Indicator)

SWK-1 07/10/2018 08/07/2018 < 2.24 < 2.20 < 4.87 < 2.51 < 4.85 < 2.32 < 2.76 < 3.94 < 2.61 < 2.36 < 9.14 < 2.95 (Indicator)

SWK-1 08/07/2018 09/04/2018 < 1.28 < 1.34 < 2.91 < 1.39 < 2.77 < 1.38 < 2.25 < 2.37 < 1.45 < 1.42 < 6.61 < 2.31 (Indicator)

SWK-1 09/04/2018 10/02/2018 < 1.73 < 1.82 < 3.53 < 2.02 < 3.38 < 1.82 < 2.39 < 3.16 < 2.13 < 1.96 < 7.57 < 2.33 (Indicator)

SWK-1 10/02/2018 10/30/2018 < 1.80 < 1.85 < 3.99 < 2.02 < 3.59 < 1.86 < 3.29 < 2.98 < 1.99 < 1.90 < 9.03 < 3.03 (Indicator)

SWK-1 10/30/2018 11/27/2018 < 1.67 < 1.75 < 3.98 < 1.97 < 3.50 < 1.84 < 3.05 < 3.22 < 1.87 < 1.84 < 8.39 < 2.80 (Indicator)

SWK-1 11/27/2018 12/26/2018 < 1.60 < 1.52 < 3.44 < 1.62 < 3.29 < 1.61 < 2.90 < 2.74 < 1.67 < 1.66 < 8.30 < 2.50 (Indicator)

Plant: Waterford 3 Year: 2018 Page 37 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 7 of 14 Monitoring Results Tables Table 16: Surface Water - Tritium Analysis: H-3 Units: pCi/L Location Start Date End Date H3 REQUIRED LLD 3000 SWK-1 (Indicator) 12/27/2017 03/20/2018 < 655 SWK-1 (Indicator) 03/20/2018 06/12/2018 < 596 SWK-1 (Indicator) 06/12/2018 09/04/2018 < 635 SWK-1 (Indicator) 09/04/2018 11/27/2018 < 530

Plant: Waterford 3 Year: 2018 Page 38 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 8 of 14 Monitoring Results Tables Table 17: Drinking/Surface Water - Gamma and Gross Beta Analysis: Gamma Isotopic, Gross Beta Units: pCi/L Collection Gross Location Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 Date Beta REQUIRED LLD 4 15 15 30 15 30 15 15 15 18 15 15 (1)

DWF/SWF-2 03/20/2018 5.29 < 1.78 < 1.88 < 4.09 < 2.10 < 3.45 < 2.01 < 3.67 < 2.01 < 1.96 < 12.4 < 4.12 (Indicator)

DWE/SWE-5 03/20/2018 4.27 < 1.86 < 1.83 < 4.03 < 1.81 < 3.96 < 2.00 < 3.48 < 1.99 < 1.85 < 13.3 < 3.55 (Indicator)

DWP/SWP-7 03/20/2018 6.20 < 1.45 < 1.51 < 3.66 < 1.53 < 2.77 < 1.70 < 2.71 < 1.52 < 1.62 < 10.4 < 3.41 (Control)

DWF/SWF-2(1) 06/12/2018 9.91 < 3.38 < 4.04 < 8.47 < 5.70 < 8.31 < 3.21 < 6.27 < 4.09 < 4.12 < 14.7 < 7.31 (Indicator)

DWE/SWE-5 06/12/2018 3.34 < 2.88 < 2.80 < 6.30 < 2.74 < 5.85 < 3.20 < 4.62 < 3.00 < 3.10 < 14.4 < 5.16 (Indicator)

DWP/SWP-7 06/12/2018 3.76 < 2.88 < 3.04 < 6.73 < 3.70 < 6.64 < 3.91 < 5.85 < 3.32 < 3.42 < 14.9 < 6.04 (Control)

DWF/SWF-2(1) 09/04/2018 4.86 < 1.77 < 1.86 < 4.43 < 1.83 < 3.41 < 1.96 < 3.38 < 1.83 < 1.79 < 14.3 < 4.85 (Indicator)

DWE/SWE-5 09/04/2018 4.82 < 1.63 < 1.71 < 3.92 < 1.63 < 3.27 < 1.80 < 3.17 < 1.74 < 1.73 < 13.9 < 3.86 (Indicator)

DWP/SWP-7 09/04/2018 4.12 < 1.87 < 1.85 < 4.64 < 1.87 < 3.36 < 1.92 < 3.30 < 1.87 < 1.82 < 14.5 < 4.83 (Control)

DWF/SWF-2(1) 11/27/2018 4.36 < 1.75 < 1.71 < 4.01 < 1.81 < 3.35 < 2.00 < 3.38 < 1.79 < 1.93 < 14.3 < 4.29 (Indicator)

DWE/SWE-5 11/27/2018 4.63 < 1.63 < 1.76 < 3.94 < 1.58 < 3.08 < 1.87 < 2.99 < 1.81 < 1.67 < 12.4 < 4.11 (Indicator)

DWP/SWP-7 11/27/2018 6.09 < 1.54 < 1.74 < 4.00 < 1.65 < 3.19 < 1.92 < 3.16 < 1.76 < 1.71 < 13.8 < 4.03 (Control)

(1)

Station with highest annual Gr-B mean.

Plant: Waterford 3 Year: 2018 Page 39 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 9 of 14 Monitoring Results Tables Table 18: Drinking/Surface Water- Iodine-131 Analysis: Iodine-131 Units: pCi/L Location Start Date End Date I-131 REQUIRED LLD 1.0 DWF/SWF-2 (Indicator) (1) 12/27/2017 01/23/2018 < 0.411 DWF/SWF-2 (Indicator) 12/27/2017 01/23/2018 < 0.526 DWE/SWE-5 (Indicator) 12/27/2017 01/23/2018 < 0.455 DWP/SWP-7 (Control) 12/27/2017 01/23/2018 < 0.554 DWF/SWF-2 (Indicator) 01/23/2018 02/20/2018 < 0.335 DWE/SWE-5 (Indicator) 01/23/2018 02/20/2018 < 0.302 DWP/SWP-7 (Control) 01/23/2018 02/20/2018 < 0.326 DWF/SWF-2 (Indicator) 02/20/2018 03/20/2018 < 0.533 DWE/SWE-5 (Indicator) 02/20/2018 03/20/2018 < 0.520 DWP/SWP-7 (Control) 02/20/2018 03/20/2018 < 0.772 DWF/SWF-2 (Indicator) 03/20/2018 04/17/2018 < 0.396 DWE/SWE-5 (Indicator) 03/20/2018 04/17/2018 < 0.492 DWP/SWP-7 (Control) 03/20/2018 04/17/2018 < 0.952 DWF/SWF-2 (Indicator) 04/17/2018 05/15/2018 < 0.316 DWE/SWE-5 (Indicator) 04/17/2018 05/15/2018 < 0.466 DWP/SWP-7 (Control) 04/17/2018 05/15/2018 < 0.398 DWF/SWF-2 (Indicator) 05/15/2018 06/12/2018 < 0.395 DWE/SWE-5 (Indicator) 05/15/2018 06/12/2018 < 0.382 DWP/SWP-7 (Control) 05/15/2018 06/12/2018 < 0.531 DWF/SWF-2 (Indicator) 06/12/2018 07/11/2018 < 0.388 DWE/SWE-5 (Indicator) 06/12/2018 07/10/2018 < 0.590 DWP/SWP-7 (Control) 06/12/2018 07/10/2018 < 0.514 DWF/SWF-2 (Indicator) 07/11/2018 08/07/2018 < 0.348 DWE/SWE-5 (Indicator) 07/10/2018 08/07/2018 < 0.416 DWP/SWP-7 (Control) 07/10/2018 08/07/2018 < 0.324 DWF/SWF-2 (Indicator) 08/07/2018 09/04/2018 < 0.655 DWE/SWE-5 (Indicator) 08/07/2018 09/04/2018 < 0.349 DWP/SWP-7 (Control) 08/07/2018 09/04/2018 < 0.526 DWF/SWF-2 (Indicator) 09/04/2018 10/02/2018 < 0.406 DWE/SWE-5 (Indicator) 09/04/2018 10/02/2018 < 0.516 DWP/SWP-7 (Control) 09/04/2018 10/02/2018 < 0.376 DWF/SWF-2 (Indicator) 10/02/2018 10/30/2018 < 0.465 DWE/SWE-5 (Indicator) 10/02/2018 10/30/2018 < 0.740 DWP/SWP-7 (Control) 10/02/2018 10/30/2018 < 0.481 DWF/SWF-2 (Indicator) 10/30/2018 11/27/2018 < 0.467 DWE/SWE-5 (Indicator) 10/30/2018 11/27/2018 < 0.689 DWP/SWP-7 (Control) 10/30/2018 11/27/2018 < 0.441 DWF/SWF-2 (Indicator) 11/27/2018 12/26/2018 < 0.666 DWE/SWE-5 (Indicator) 11/27/2018 12/26/2018 < 0.541 DWP/SWP-7 (Control) 11/27/2018 12/26/2018 < 0.457 (1)

Duplicate sample

Plant: Waterford 3 Year: 2018 Page 40 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 10 of 14 Monitoring Results Tables Table 19: Drinking/Surface Water - Tritium Analysis: H-3 Units: pCi/L Location Start Date End Date H3 REQUIRED LLD 2000 DWF/SWF-2 (Indicator) 12/27/2017 03/20/2018 < 656 DWE/SWE-5 (Indicator) 12/27/2017 03/20/2018 < 655 DWP/SWP-7 (Control) 12/27/2017 03/20/2018 < 662 DWF/SWF-2 (Indicator) 03/20/2018 06/12/2018 < 598 DWE/SWE-5 (Indicator) 03/20/2018 06/12/2018 < 590 DWP/SWP-7 (Control) 03/20/2018 06/12/2018 < 585 DWF/SWF-2 (Indicator) 06/12/2018 09/04/2018 < 637 DWE/SWE-5 (Indicator) 06/12/2018 09/04/2018 < 636 DWP/SWP-7 (Control) 06/12/2018 09/04/2018 < 624 DWF/SWF-2 (Indicator) 09/04/2018 11/27/2018 < 547 DWE/SWE-5 (Indicator) 09/04/2018 11/27/2018 < 540 DWP/SWP-7 (Control) 09/04/2018 11/27/2018 < 551

Plant: Waterford 3 Year: 2018 Page 41 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 11 of 14 Monitoring Results Tables Table 20: Sediment - Gamma Analysis: Gamma Isotopic Units: pCi/kg (dry)

Location Collection Date Cs-134 Cs-137 REQUIRED LLD 150 180 SHWK-1 03/14/2018 < 77.74 < 73.49 SHWE-3 04/30/2018 < 137.7 < 140.5 SHWQ-6 04/30/2018 < 66.15 < 59.67

Plant: Waterford 3 Year: 2018 Page 42 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 12 of 14 Monitoring Results Tables Table 21: Fish - Gamma Analysis: Gamma Isotopic Units: pCi/kg (wet)

Collection Location Mn 54 Co 58 Fe 59 Co 60 Zn 65 Cs 134 Cs 137 Date REQUIRED LLD 130 130 260 130 260 130 150 FH-1 11/19/2018 < 69.34 < 69.93 < 141.3 < 69.55 < 158.7 < 81.90 < 63.48 (Control)

FH-2 11/19/2018 < 50.48 < 56.55 < 143.7 < 57.49 < 100.9 < 49.85 < 55.66 (Indicator)

FH-3 11/16/2018 < 37.80 < 50.35 < 107.4 < 60.20 < 107.8 < 55.56 < 53.86 (Indicator)

FH-1 11/19/2018 < 58.30 < 47.22 < 153.1 < 67.05 < 121.6 < 59.90 < 55.85 (Control)

FH-2 11/19/2018 < 49.45 < 53.08 < 109.0 < 52.41 < 115.8 < 64.86 < 57.68 (Indicator)

FH-3 11/11/2018 < 70.68 < 85.17 < 129.4 < 75.91 < 162.3 < 84.21 < 68.37 (Indicator)

FH-1 11/19/2018 < 64.83 < 60.24 < 144.6 < 66.73 < 157.9 < 77.02 < 68.76 (Control)

FH-2 11/19/2018 < 76.72 < 83.92 < 180.7 < 82.71 < 145.0 < 77.43 < 73.14 (Indicator)

FH-3 11/16/2018 < 52.76 < 53.62 < 94.90 < 62.27 < 103.1 < 32.92 < 34.77 (Indicator)

FH-1 11/19/2018 < 56.90 < 66.59 < 141.5 < 52.40 < 100.7 < 54.19 < 50.49 (Control)

FH-2 11/19/2018 < 46.33 < 58.49 < 94.86 < 56.62 < 117.3 < 55.54 < 49.36 (Indicator)

FH-3 11/11/2018 < 77.22 < 60.25 < 132.0 < 62.77 < 147.0 < 74.08 < 72.86 (Indicator)

Plant: Waterford 3 Year: 2018 Page 43 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 13 of 14 Monitoring Results Tables Table 22: Broad Leaf Vegatation - Gamma Analysis: Gamma Isotopic Units: pCi/kg (wet)

Location Collection Date I-131 Cs-134 Cs-137 REQUIRED LLD 60 60 80 BLQ-1 (Indicator) 03/14/2018 < 26.18 < 24.94 < 27.67 BLB-1 (Indicator) 03/14/2018 < 26.35 < 26.45 < 29.32 BLE-20 (Control) 03/14/2018 < 45.45 < 42.93 < 49.43 BLQ-1 (Indicator) 06/13/2018 < 18.54 < 26.40 < 22.08 BLB-1 (Indicator) 06/13/2018 < 26.54 < 20.27 < 24.11 BLE-20 (Control) 06/13/2018 < 25.81 < 29.71 < 26.03 BLQ-1 (Indicator) 09/11/2018 < 38.07 < 24.40 < 22.03 BLB-1 (Indicator) 09/11/2018 < 57.66 < 35.71 < 32.91 BLE-20 (Control) 09/11/2018 < 56.51 < 36.56 < 38.69 BLQ-1 (Indicator) 12/12/2018 < 22.31 < 15.94 < 21.87 BLB-1 (Indicator) 12/12/2018 < 42.43 < 35.01 < 35.05 BLE-20 (Control) 12/12/2018 < 46.95 < 33.57 < 32.27

Plant: Waterford 3 Year: 2018 Page 44 of 52 Annual Radiological Environmental Operating Report Attachment 2 Page 14 of 14 Monitoring Results Tables Table 23: Milk - Gamma and Iodine-131 Analysis: Gamma Isotopic, Iodine-131 Units: pCi/L Collection Location I-131 Cs-134 Cs-137 Ba-140 La-140 Date REQUIRED LLD 1 15 18 15 15 MKE-3 03/15/2018 (1) (1) (1) (1) (1)

(Indicator)

MKA-31 03/15/2018 (2) < 2.67 5.53 < 11.41 < 3.07 (Control)

MKE-3 03/27/2018 (1) (1) (1) (1) (1)

(Indicator)

MKA-31 03/27/2018 < 0.467 < 3.65 < 3.92 < 12.3 < 3.67 (Control)

MKE-3 06/13/2018 (1) (1) (1) (1) (1)

(Indicator)

MKA-31 06/13/2018 < 0.432 < 4.20 5.65 < 14.7 < 4.04 (Control)

MKE-3 06/26/2018 (1) (1) (1) (1) (1)

(Indicator)

MKA-31 06/26/2018 < 0.878 < 2.90 < 2.87 < 9.11 < 2.84 (Control)

MKE-3 09/12/2018 (1) (1) (1) (1) (1)

(Indicator)

MKA-31 09/12/2018 < 0.499 < 2.13 3.31 < 9.75 < 2.42 (Control)

MKE-3 09/25/2018 (1) (1) (1) (1) (1)

(Indicator)

MKA-31 09/25/2018 < 0.416 < 2.24 4.49 < 10.4 < 3.54 (Control)

MKE-3 12/13/2018 (1) (1) (1) (1) (1)

(Indicator)

MKA-31 12/13/2018 < 0.260 < 1.82 < 2.03 < 7.12 < 2.20 (Control)

(1)

See Attachment 1, Table 7, Samples Deviations Table, Comment 1 (2)

See Attachment 1, Table 7, Samples Deviations Table, Comment 2

Plant: Waterford 3 Year: 2018 Page 45 of 52 Annual Radiological Environmental Operating Report Attachment 3 Page 1 of 8 Interlaboratory Comparison Program Results 1.0 Summary For the Teledyne Brown Engineering (TBE) laboratory, 166 out of 172 analyses performed met the specified acceptance criteria. Six analyses did not meet the specified acceptance criteria for the following reasons and were addressed through the TBE Corrective Action Program.

Note: The Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP) samples are created to mimic conditions found at DOE sites which do not resemble typical environmental samples obtained at commercial nuclear power facilities.

1. TBE was unable to report the February 2018 DOE MAPEP vegetation Sr-90 result due to QC failure and limited sample amount. (NCR 18-09)
2. The Analytics September 2018 milk Fe-59 result was evaluated as Not Acceptable (Ratio of TBE to known result at 133%). The reported value was 158 +/- 17.6 pCi/L and the known value was 119 +/- 19.9 pCi/L. No cause for the failure could be determined. TBE has passed 24 of the previous 27 milk cross-check results since 2012. This sample was run in duplicate on a different detector with comparable results (162 +/- 16 pCi/L). NOTE: TBEs 4th Qtr result passed at 105% (NCR 18-20)
3. The Analytics September milk I-131 result was evaluated as Not Acceptable (Ratio of TBE to known result at 143%). Due to a personnel change in the gamma prep lab, the sample was not prepped/counted in a timely manner such as to accommodate the I-131 8-day half-life. Analysts have been made aware of the urgency for this analysis and it will be monitored more closely by QA.

NOTE: TBEs 4th Qtr result passed at 101% (NCR 18-24)

4. The Analytics September soil Cr-51 result was evaluated as Not Acceptable (Ratio of TBE to known result at 131%). As with #3 above, the sample was not prepped/counted in a timely manner such as to accommodate the Cr-51 27-day half-life. The same corrective action applies here as in #3. (NCR 18-21)
5. The MAPEP November vegetation Sr-90 result of 0.338 Bq/sample was evaluated as Not Acceptable (Lower acceptable range was 0.554 Bq/sample).

It appears that there has been incomplete dissolution of Sr-90 due to the composition of the MAPEP vegetation matrix. To resolve this issue, the TBE-2018 procedure has been modified to add H2O2 to assist in breaking down the organic material that comprises this matrix. This corrective action will be monitored closely by QA. (NCR 18-25).

Plant: Waterford 3 Year: 2018 Page 46 of 52 Annual Radiological Environmental Operating Report Page 2 of 8 Interlaboratory Comparison Program Results

6. The ERA November 2018 water Sr-90 sample was evaluated as Not Acceptable. TBEs initial reported result of 36.8 pCi/L exceeded the upper acceptance range (22.9 - 36.4 pCi/L). After reviewing the data for this sample, it was discovered that there was a typographical error at the time the results were entered at the ERA website. The correct result in LIMS of 36.2 should have been submitted instead. This result is within ERAs acceptance limits. In addition to the typo error, ERAs very stringent upper acceptance limit of 116%

is not a reflection of TBEs ability to successfully perform this analysis. (NCR 18-23)

The Inter-Laboratory Comparison Program provides evidence of in control counting systems and methods, and that the laboratories are producing accurate and reliable data.

Plant: Waterford 3 Year: 2018 Page 47 of 52 Annual Radiological Environmental Operating Report Attachment 3 Page 3 of 8 Table 24: Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services TBE Identification Known Ratio of TBE to Month/Year Matrix Nuclide Units Reported Evaluation (b)

Number Value (a) Analytics Result Value March 2018 E12133 Milk Sr-89 pCi/L 76.1 90.1 0.84 A Sr-90 pCi/L 12.2 12.5 0.98 A E12134 Milk Ce-141 pCi/L 77.8 77.0 1.01 A Co-58 pCi/L 105 114 0.92 A Co-60 pCi/L 181 187 0.97 A Cr-51 pCi/L 298 326 0.92 A Cs-134 pCi/L 150 180 0.84 A Cs-137 pCi/L 164 172 0.95 A Fe-59 pCi/L 140 139 1.01 A I-131 pCi/L 105 108.0 0.97 A Mn-54 pCi/L 133 131 1.01 A Zn-65 pCi/L 242 244 0.99 A E12135 Charcoal I-131 pCi 93.7 95.4 0.98 A E12136 AP Ce-141 pCi 92.6 85.3 1.09 A Co-58 pCi 130 126 1.03 A Co-60 pCi 237 207 1.14 A Cr-51 pCi 411 361 1.14 A Cs-134 pCi 194 199 0.98 A Cs-137 pCi 200 191 1.05 A Fe-59 pCi 160 154 1.04 A Mn-54 pCi 152 145 1.05 A Zn-65 pCi 267 271 0.99 A E12137 Water Fe-55 pCi/L 1990 1700 1.17 A E12138 Soil Ce-141 pCi/g 0.148 0.118 1.26 W Co-58 pCi/g 0.171 0.174 0.98 A Co-60 pCi/g 0.297 0.286 1.04 A Cr-51 pCi/g 0.537 0.498 1.08 A Cs-134 pCi/g 0.274 0.275 1.00 A Cs-137 pCi/g 0.355 0.337 1.05 A Fe-59 pCi/g 0.243 0.212 1.15 A Mn-54 pCi/g 0.228 0.201 1.14 A Zn-65 pCi/g 0.395 0.374 1.06 A (a) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 (Page 1 of 6)

Plant: Waterford 3 Year: 2018 Page 48 of 52 Annual Radiological Environmental Operating Report Attachment 3 Page 4 of 8 Table 24: Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services TBE Identification Known Ratio of TBE to Month/Year Matrix Nuclide Units Reported Evaluation (b)

Number Value (a) Analytics Result Value June 2018 E12205 Milk Sr-89 pCi/L 74.9 84.6 0.89 A Sr-90 pCi/L 10.5 11.4 0.92 A E12206 Milk Ce-141 pCi/L 89.2 82.2 1.08 A Co-58 pCi/L 94.8 89 1.07 A Co-60 pCi/L 125 113 1.10 A Cr-51 pCi/L 256 239 1.07 A Cs-134 pCi/L 112 114 0.99 A Cs-137 pCi/L 107 98.8 1.08 A Fe-59 pCi/L 95.9 86.0 1.12 A I-131 pCi/L 69.8 71.9 0.97 A Mn-54 pCi/L 138 130 1.06 A Zn-65 pCi/L 186 157 1.18 A E12207 Charcoal I-131 pCi 69.6 72.2 0.96 A E12208 AP Ce-141 pCi 151 165 0.92 A Co-58 pCi 174 178 0.98 A Co-60 pCi 290 227 1.28 W Cr-51 pCi 452 478 0.95 A Cs-134 pCi 215 227 0.95 A Cs-137 pCi 206 198 1.04 A Fe-59 pCi 180 172 1.05 A Mn-54 pCi 265 260 1.02 A Zn-65 pCi 280 315 0.89 A E12209 Water Fe-55 pCi/L 1790 1740 1.03 A E12210 AP Sr-89 pCi 77.8 90.3 0.86 A Sr-90 pCi 9.54 12.2 0.78 W (a) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 (Page 2 of 6)

Plant: Waterford 3 Year: 2018 Page 49 of 52 Annual Radiological Environmental Operating Report Attachment 3 Page 5 of 8 Table 24: Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services TBE Identification Known Ratio of TBE to Month/Year Matrix Nuclide Units Reported Evaluation (b)

Number Value (a) Analytics Result Value September 2018 E12271 Milk Sr-89 pCi/L 79.4 81.7 0.97 A Sr-90 pCi/L 12.2 14.8 0.82 A E12272 Milk Ce-141 pCi/L 152 128 1.19 A Co-58 pCi/L 161 144 1.12 A Co-60 pCi/L 208 190 1.10 A Cr-51 pCi/L 244 265 0.92 A Cs-134 pCi/L 124 123 1.01 A Cs-137 pCi/L 166 147 1.13 A Fe-59 pCi/L 158 119 1.32 N(1)

I-131 pCi/L 83.1 58.2 1.43 N(2)

Mn-54 pCi/L 191 167 1.14 A Zn-65 pCi/L 229 201 1.14 A E12273 Charcoal I-131 pCi 83.0 80.7 1.03 A E12274 AP Ce-141 pCi 101 85.6 1.18 A Co-58 pCi 92.7 96.0 0.97 A Co-60 pCi 142 127 1.12 A Cr-51 pCi 218 177 1.23 W Cs-134 pCi 81.2 81.9 0.99 A Cs-137 pCi 99.0 98.5 1.01 A Fe-59 pCi 93.7 79.7 1.18 A Mn-54 pCi 116 112 1.04 A Zn-65 pCi 139 134 1.04 A E12302 Water Fe-55 pCi/L 2120 1820 1.17 A E12276 Soil Ce-141 pCi/g 0.259 0.221 1.17 A Co-58 pCi/g 0.279 0.248 1.12 A Co-60 pCi/g 0.367 0.328 1.12 A Cr-51 pCi/g 0.597 0.457 1.31 N (3)

Cs-134 pCi/g 0.261 0.212 1.23 W Cs-137 pCi/g 0.376 0.330 1.14 A Fe-59 pCi/g 0.248 0.206 1.20 A Mn-54 pCi/g 0.317 0.289 1.10 A Zn-65 pCi/g 0.407 0.347 1.17 A (a) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 (1) See NCR 18-20 (2) See NCR 18-24 (3) See NCR 18-21 (Page 3 of 6)

Plant: Waterford 3 Year: 2018 Page 50 of 52 Annual Radiological Environmental Operating Report Attachment 3 Page 6 of 8 Table 24: Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services TBE Identification Known Ratio of TBE to Month/Year Matrix Nuclide Units Reported Evaluation (b)

Number Value (a) Analytics Result Value December 2018 E12313 Milk Sr-89 pCi/L 71.9 91.9 0.78 W Sr-90 pCi/L 12.1 13.3 0.91 A E12314 Milk Ce-141 pCi/L 124 133 0.93 A Co-58 pCi/L 110 119 0.93 A Co-60 pCi/L 202 212 0.95 A Cr-51 pCi/L 292 298 0.98 A Cs-134 pCi/L 146 171 0.85 A Cs-137 pCi/L 118 121 0.98 A Fe-59 pCi/L 120 114 1.05 A I-131 pCi/L 94.2 93.3 1.01 A Mn-54 pCi/L 151 154 0.98 A Zn-65 pCi/L 266 264 1.01 A E12315 Charcoal I-131 pCi 94.8 89.9 1.05 A E12316A AP Ce-141 pCi 92.3 94.0 0.98 A Co-58 pCi 73.4 83.8 0.88 A Co-60 pCi 137 150 0.91 A Cr-51 pCi 202 210 0.96 A Cs-134 pCi 115 121 0.95 A Cs-137 pCi 85.0 85.4 1.00 A Fe-59 pCi 83.1 80.8 1.03 A Mn-54 pCi 104 109 0.96 A Zn-65 pCi 168 187 0.90 A E12317 Water Fe-55 pCi/L 2110 1840 1.15 A E12318 AP Sr-89 pCi 81.1 83.0 0.98 A Sr-90 pCi 11.4 12.0 0.95 A (a) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 (Page 4 of 6)

Plant: Waterford 3 Year: 2018 Page 51 of 52 Annual Radiological Environmental Operating Report Attachment 3 Page 7 of 8 Table 25: DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering Environmental Services TBE Identification Known Acceptance (b)

Month/Year Matrix Nuclide Units Reported (a) Evaluation Number Value Range Value February 2018 18-MaS38 Soil Ni-63 Bq/kg 9.94 (1) A Sr-90 Bq/kg 0.846 (1) A 18-MaW38 Water Am-241 Bq/L 0.785 0.709 0.496 - 0.922 A Ni-63 Bq/L 12.6 14.0 9.8 - 18.2 A Pu-238 Bq/L 0.0214 0.023 (2) A Pu-239/240 Bq/L 0.544 0.600 0.420 - 0.780 A 18-RdF38 AP U-234/233 Bq/sample 0.111 0.124 0.087 - 0.161 A U-238 Bq/sample 0.123 0.128 0.090 - 0.166 A 18-RdV38 Vegetation Cs-134 Bq/sample 2.46 3.23 2.26 - 4.20 W Cs-137 Bq/sample 3.14 3.67 2.57 - 4.77 A Co-57 Bq/sample 4.12 4.42 3.09 - 5.75 A Co-60 Bq/sample 1.86 2.29 1.60 - 2.98 A Mn-54 Bq/sample 2.21 2.66 1.86 - 3.46 A Sr-90 Bq/sample NR(3)

Zn-65 Bq/sample -0.201 (1) A November 2018 18-MaS39 Soil Ni-63 Bq/kg 703 765 536 - 995 A Sr-90 Bq/kg 137 193 135 - 251 W 18-MaW39 Water Am-241 Bq/L 0.0363 (1) A Ni-63 Bq/L 6.18 7.0 4.9 - 9.1 A Pu-238 Bq/L 0.73 0.674 0.472 - 0.876 A Pu-239/240 Bq/L 0.89 0.928 0.650 - 1.206 A 18-RdF39 AP U-234/233 Bq/sample 0.159 0.152 0.106 - 0.198 A U-238 Bq/sample 0.162 0.158 0.111 - 0.205 A 18-RdV39 Vegetation Cs-134 Bq/sample 1.85 1.94 1.36 - 2.52 A Cs-137 Bq/sample 2.5 2.36 1.65 - 3.07 A Co-57 Bq/sample 3.53 3.31 2.32 - 4.30 A Co-60 Bq/sample 1.6 1.68 1.18 - 2.18 A Mn-54 Bq/sample 2.61 2.53 1.77 - 3.29 A Sr-90 Bq/sample 0.338 0.791 0.554 - 1.028 N(4)

Zn-65 Bq/sample 1.32 1.37 0.96 - 1.78 A (a) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) DOE/MAPEP evaluation:

A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0.70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of < 0.70 and > 1.30 NR = No result reported (1) False positive test (2) Sensitivity evaluation (3) See NCR 18-09 (4) See NCR 18-25 (Page 5 of 6)

Plant: Waterford 3 Year: 2018 Page 52 of 52 Annual Radiological Environmental Operating Report Attachment 3 Page 8 of 8 Table 26: ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services TBE Identification Known Acceptance Month/Year Matrix Nuclide Units Reported Evaluation (b)

Number Value (a) Limits Value March 2018 MRAD-28 AP GR-A pCi/sample 65.7 43.4 22.7 - 71.5 A GR-B pCi/sample 57.2 52 31.5 - 78.6 A April 2018 RAD-113 Water Ba-133 pCi/L 91.2 91.5 77.1 - 101 A Cs-134 pCi/L 70.4 75.9 62.0 - 83.5 A Cs-137 pCi/L 122 123 111 - 138 A Co-60 pCi/L 64.8 64.3 57.9 - 73.2 A Zn-65 pCi/L 98.6 86.7 78.0 - 104 A GR-A pCi/L 32.8 28.6 14.6 - 37.5 A GR-B pCi/L 62.9 73.7 51.4 - 81.1 A U-Nat pCi/L 6.7 6.93 5.28 - 8.13 A H-3 pCi/L 17100 17200 15000 - 18900 A Sr-89 pCi/L 38.6 48.8 38.3 - 56.2 A Sr-90 pCi/L 27.1 26.5 19.2 - 30.9 A I-131 pCi/L 26.7 24.6 20.4 - 29.1 A September 2018 MRAD-29 AP GR-A pCi/sample 49.7 55.3 28.9 - 91.1 A AP GR-B pCi/sample 75.3 86.5 52.4 - 131 A October 2018 RAD-115 Water Ba-133 pCi/L 15.2 16.3 11.9 - 19.4 A Cs-134 pCi/L 85.9 93.0 76.4 - 102 A Cs-137 pCi/L 229 235 212 - 260 A Co-60 pCi/L 81.9 80.7 72.6 - 91.1 A Zn-65 pCi/L 348 336 302 - 392 A GR-A pCi/L 38.9 60.7 31.8 - 75.4 A GR-B pCi/L 36.5 41.8 27.9 - 49.2 A U-Nat pCi/L 17.48 20.9 16.8 - 23.4 A H-3 pCi/L 2790 2870 2410 - 3170 A I-131 pCi/L 26.9 27.2 22.6 - 32.0 A Sr-89 pCi/L 57.2 56.9 45.5 - 64.6 A Sr-90 pCi/L 36.8 31.4 22.9- 36.4 N(1)

(a) The ERA known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.

(b) ERA evaluation:

A = Acceptable - Reported value falls within the Acceptance Limits N = Not Acceptable - Reported value falls outside of the Acceptance Limits (1) See NCR 18-23 (Page 6 of 6)

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